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openwrtv4/target/linux/layerscape/patches-4.9/705-dpaa2-support-layerscape.patch
Yangbo Lu a83eae385a layerscape: update linux 4.9 patches to LSDK-18.06 
This patch is to update linux 4.9 patches to LSDK-18.06
release and to adjust config-4.9 accordingly.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
2018-09-22 21:20:57 +02:00

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From 77cc39e936f87463f92f7fddaaf0de51eec3972f Mon Sep 17 00:00:00 2001
From: Yangbo Lu <yangbo.lu@nxp.com>
Date: Fri, 6 Jul 2018 15:30:21 +0800
Subject: [PATCH] dpaa2: support layerscape
This is an integrated patch for layerscape dpaa2 support.
Signed-off-by: Bogdan Purcareata <bogdan.purcareata@nxp.com>
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Razvan Stefanescu <razvan.stefanescu@nxp.com>
Signed-off-by: costi <constantin.tudor@freescale.com>
Signed-off-by: Catalin Horghidan <catalin.horghidan@nxp.com>
Signed-off-by: Mathew McBride <matt@traverse.com.au>
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
---
drivers/soc/fsl/ls2-console/Kconfig | 4 +
drivers/soc/fsl/ls2-console/Makefile | 1 +
drivers/soc/fsl/ls2-console/ls2-console.c | 284 ++
drivers/staging/fsl-dpaa2/ethernet/Makefile | 12 +
drivers/staging/fsl-dpaa2/ethernet/README | 186 +
drivers/staging/fsl-dpaa2/ethernet/TODO | 18 +
.../fsl-dpaa2/ethernet/dpaa2-eth-ceetm.c | 1253 ++++++
.../fsl-dpaa2/ethernet/dpaa2-eth-ceetm.h | 182 +
.../fsl-dpaa2/ethernet/dpaa2-eth-debugfs.c | 357 ++
.../fsl-dpaa2/ethernet/dpaa2-eth-debugfs.h | 60 +
.../fsl-dpaa2/ethernet/dpaa2-eth-trace.h | 185 +
.../staging/fsl-dpaa2/ethernet/dpaa2-eth.c | 3734 +++++++++++++++++
.../staging/fsl-dpaa2/ethernet/dpaa2-eth.h | 601 +++
.../fsl-dpaa2/ethernet/dpaa2-ethtool.c | 878 ++++
drivers/staging/fsl-dpaa2/ethernet/dpkg.h | 176 +
drivers/staging/fsl-dpaa2/ethernet/dpni-cmd.h | 719 ++++
drivers/staging/fsl-dpaa2/ethernet/dpni.c | 2112 ++++++++++
drivers/staging/fsl-dpaa2/ethernet/dpni.h | 1172 ++++++
drivers/staging/fsl-dpaa2/ethernet/net.h | 480 +++
drivers/staging/fsl-dpaa2/ethsw/Makefile | 10 +
drivers/staging/fsl-dpaa2/ethsw/README | 106 +
drivers/staging/fsl-dpaa2/ethsw/TODO | 14 +
drivers/staging/fsl-dpaa2/ethsw/dpsw-cmd.h | 359 ++
drivers/staging/fsl-dpaa2/ethsw/dpsw.c | 1165 +++++
drivers/staging/fsl-dpaa2/ethsw/dpsw.h | 592 +++
.../staging/fsl-dpaa2/ethsw/ethsw-ethtool.c | 206 +
drivers/staging/fsl-dpaa2/ethsw/ethsw.c | 1438 +++++++
drivers/staging/fsl-dpaa2/ethsw/ethsw.h | 90 +
drivers/staging/fsl-dpaa2/evb/Kconfig | 7 +
drivers/staging/fsl-dpaa2/evb/Makefile | 10 +
drivers/staging/fsl-dpaa2/evb/dpdmux-cmd.h | 279 ++
drivers/staging/fsl-dpaa2/evb/dpdmux.c | 1111 +++++
drivers/staging/fsl-dpaa2/evb/dpdmux.h | 453 ++
drivers/staging/fsl-dpaa2/evb/evb.c | 1354 ++++++
drivers/staging/fsl-dpaa2/mac/Kconfig | 23 +
drivers/staging/fsl-dpaa2/mac/Makefile | 10 +
drivers/staging/fsl-dpaa2/mac/dpmac-cmd.h | 172 +
drivers/staging/fsl-dpaa2/mac/dpmac.c | 619 +++
drivers/staging/fsl-dpaa2/mac/dpmac.h | 342 ++
drivers/staging/fsl-dpaa2/mac/mac.c | 673 +++
drivers/staging/fsl-dpaa2/rtc/Makefile | 10 +
drivers/staging/fsl-dpaa2/rtc/dprtc-cmd.h | 160 +
drivers/staging/fsl-dpaa2/rtc/dprtc.c | 746 ++++
drivers/staging/fsl-dpaa2/rtc/dprtc.h | 172 +
drivers/staging/fsl-dpaa2/rtc/rtc.c | 242 ++
include/linux/filter.h | 3 +
46 files changed, 22780 insertions(+)
create mode 100644 drivers/soc/fsl/ls2-console/Kconfig
create mode 100644 drivers/soc/fsl/ls2-console/Makefile
create mode 100644 drivers/soc/fsl/ls2-console/ls2-console.c
create mode 100644 drivers/staging/fsl-dpaa2/ethernet/Makefile
create mode 100644 drivers/staging/fsl-dpaa2/ethernet/README
create mode 100644 drivers/staging/fsl-dpaa2/ethernet/TODO
create mode 100644 drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth-ceetm.c
create mode 100644 drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth-ceetm.h
create mode 100644 drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth-debugfs.c
create mode 100644 drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth-debugfs.h
create mode 100644 drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth-trace.h
create mode 100644 drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c
create mode 100644 drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.h
create mode 100644 drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c
create mode 100644 drivers/staging/fsl-dpaa2/ethernet/dpkg.h
create mode 100644 drivers/staging/fsl-dpaa2/ethernet/dpni-cmd.h
create mode 100644 drivers/staging/fsl-dpaa2/ethernet/dpni.c
create mode 100644 drivers/staging/fsl-dpaa2/ethernet/dpni.h
create mode 100644 drivers/staging/fsl-dpaa2/ethernet/net.h
create mode 100644 drivers/staging/fsl-dpaa2/ethsw/Makefile
create mode 100644 drivers/staging/fsl-dpaa2/ethsw/README
create mode 100644 drivers/staging/fsl-dpaa2/ethsw/TODO
create mode 100644 drivers/staging/fsl-dpaa2/ethsw/dpsw-cmd.h
create mode 100644 drivers/staging/fsl-dpaa2/ethsw/dpsw.c
create mode 100644 drivers/staging/fsl-dpaa2/ethsw/dpsw.h
create mode 100644 drivers/staging/fsl-dpaa2/ethsw/ethsw-ethtool.c
create mode 100644 drivers/staging/fsl-dpaa2/ethsw/ethsw.c
create mode 100644 drivers/staging/fsl-dpaa2/ethsw/ethsw.h
create mode 100644 drivers/staging/fsl-dpaa2/evb/Kconfig
create mode 100644 drivers/staging/fsl-dpaa2/evb/Makefile
create mode 100644 drivers/staging/fsl-dpaa2/evb/dpdmux-cmd.h
create mode 100644 drivers/staging/fsl-dpaa2/evb/dpdmux.c
create mode 100644 drivers/staging/fsl-dpaa2/evb/dpdmux.h
create mode 100644 drivers/staging/fsl-dpaa2/evb/evb.c
create mode 100644 drivers/staging/fsl-dpaa2/mac/Kconfig
create mode 100644 drivers/staging/fsl-dpaa2/mac/Makefile
create mode 100644 drivers/staging/fsl-dpaa2/mac/dpmac-cmd.h
create mode 100644 drivers/staging/fsl-dpaa2/mac/dpmac.c
create mode 100644 drivers/staging/fsl-dpaa2/mac/dpmac.h
create mode 100644 drivers/staging/fsl-dpaa2/mac/mac.c
create mode 100644 drivers/staging/fsl-dpaa2/rtc/Makefile
create mode 100644 drivers/staging/fsl-dpaa2/rtc/dprtc-cmd.h
create mode 100644 drivers/staging/fsl-dpaa2/rtc/dprtc.c
create mode 100644 drivers/staging/fsl-dpaa2/rtc/dprtc.h
create mode 100644 drivers/staging/fsl-dpaa2/rtc/rtc.c
--- /dev/null
+++ b/drivers/soc/fsl/ls2-console/Kconfig
@@ -0,0 +1,4 @@
+config FSL_LS2_CONSOLE
+ tristate "Layerscape MC and AIOP console support"
+ depends on ARCH_LAYERSCAPE
+ default y
--- /dev/null
+++ b/drivers/soc/fsl/ls2-console/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_FSL_LS2_CONSOLE) += ls2-console.o
--- /dev/null
+++ b/drivers/soc/fsl/ls2-console/ls2-console.c
@@ -0,0 +1,284 @@
+/* Copyright 2015-2016 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <linux/miscdevice.h>
+#include <linux/uaccess.h>
+#include <linux/poll.h>
+#include <linux/compat.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+
+/* SoC address for the MC firmware base low/high registers */
+#define SOC_CCSR_MC_FW_BASE_ADDR_REGS 0x8340020
+#define SOC_CCSR_MC_FW_BASE_ADDR_REGS_SIZE 2
+/* MC firmware base low/high registers indexes */
+#define MCFBALR_OFFSET 0
+#define MCFBAHR_OFFSET 1
+
+/* Bit mask used to obtain the most significant part of the MC base address */
+#define MC_FW_HIGH_ADDR_MASK 0x1FFFF
+/* Bit mask used to obtain the least significant part of the MC base address */
+#define MC_FW_LOW_ADDR_MASK 0xE0000000
+
+#define MC_BUFFER_OFFSET 0x01000000
+#define MC_BUFFER_SIZE (1024*1024*16)
+#define MC_OFFSET_DELTA (MC_BUFFER_OFFSET)
+
+#define AIOP_BUFFER_OFFSET 0x06000000
+#define AIOP_BUFFER_SIZE (1024*1024*16)
+#define AIOP_OFFSET_DELTA (0)
+
+struct log_header {
+ char magic_word[8]; /* magic word */
+ uint32_t buf_start; /* holds the 32-bit little-endian
+ * offset of the start of the buffer
+ */
+ uint32_t buf_length; /* holds the 32-bit little-endian
+ * length of the buffer
+ */
+ uint32_t last_byte; /* holds the 32-bit little-endian offset
+ * of the byte after the last byte that
+ * was written
+ */
+ char reserved[44];
+};
+
+#define LOG_HEADER_FLAG_BUFFER_WRAPAROUND 0x80000000
+#define LOG_VERSION_MAJOR 1
+#define LOG_VERSION_MINOR 0
+
+
+#define invalidate(p) { asm volatile("dc ivac, %0" : : "r" (p) : "memory"); }
+
+struct console_data {
+ char *map_addr;
+ struct log_header *hdr;
+ char *start_addr; /* Start of buffer */
+ char *end_addr; /* End of buffer */
+ char *end_of_data; /* Current end of data */
+ char *cur_ptr; /* Last data sent to console */
+};
+
+#define LAST_BYTE(a) ((a) & ~(LOG_HEADER_FLAG_BUFFER_WRAPAROUND))
+
+static inline void __adjust_end(struct console_data *cd)
+{
+ cd->end_of_data = cd->start_addr
+ + LAST_BYTE(le32_to_cpu(cd->hdr->last_byte));
+}
+
+static inline void adjust_end(struct console_data *cd)
+{
+ invalidate(cd->hdr);
+ __adjust_end(cd);
+}
+
+static inline uint64_t get_mc_fw_base_address(void)
+{
+ u32 *mcfbaregs = (u32 *) ioremap(SOC_CCSR_MC_FW_BASE_ADDR_REGS,
+ SOC_CCSR_MC_FW_BASE_ADDR_REGS_SIZE);
+ u64 mcfwbase = 0ULL;
+
+ mcfwbase = readl(mcfbaregs + MCFBAHR_OFFSET) & MC_FW_HIGH_ADDR_MASK;
+ mcfwbase <<= 32;
+ mcfwbase |= readl(mcfbaregs + MCFBALR_OFFSET) & MC_FW_LOW_ADDR_MASK;
+ iounmap(mcfbaregs);
+ pr_info("fsl-ls2-console: MC base address at 0x%016llx\n", mcfwbase);
+ return mcfwbase;
+}
+
+static int fsl_ls2_generic_console_open(struct inode *node, struct file *fp,
+ u64 offset, u64 size,
+ uint8_t *emagic, uint8_t magic_len,
+ u32 offset_delta)
+{
+ struct console_data *cd;
+ uint8_t *magic;
+ uint32_t wrapped;
+
+ cd = kmalloc(sizeof(*cd), GFP_KERNEL);
+ if (cd == NULL)
+ return -ENOMEM;
+ fp->private_data = cd;
+ cd->map_addr = ioremap(get_mc_fw_base_address() + offset, size);
+
+ cd->hdr = (struct log_header *) cd->map_addr;
+ invalidate(cd->hdr);
+
+ magic = cd->hdr->magic_word;
+ if (memcmp(magic, emagic, magic_len)) {
+ pr_info("magic didn't match!\n");
+ pr_info("expected: %02x %02x %02x %02x %02x %02x %02x %02x\n",
+ emagic[0], emagic[1], emagic[2], emagic[3],
+ emagic[4], emagic[5], emagic[6], emagic[7]);
+ pr_info(" seen: %02x %02x %02x %02x %02x %02x %02x %02x\n",
+ magic[0], magic[1], magic[2], magic[3],
+ magic[4], magic[5], magic[6], magic[7]);
+ kfree(cd);
+ iounmap(cd->map_addr);
+ return -EIO;
+ }
+
+ cd->start_addr = cd->map_addr
+ + le32_to_cpu(cd->hdr->buf_start) - offset_delta;
+ cd->end_addr = cd->start_addr + le32_to_cpu(cd->hdr->buf_length);
+
+ wrapped = le32_to_cpu(cd->hdr->last_byte)
+ & LOG_HEADER_FLAG_BUFFER_WRAPAROUND;
+
+ __adjust_end(cd);
+ if (wrapped && (cd->end_of_data != cd->end_addr))
+ cd->cur_ptr = cd->end_of_data+1;
+ else
+ cd->cur_ptr = cd->start_addr;
+
+ return 0;
+}
+
+static int fsl_ls2_mc_console_open(struct inode *node, struct file *fp)
+{
+ uint8_t magic_word[] = { 0, 1, 'C', 'M' };
+
+ return fsl_ls2_generic_console_open(node, fp,
+ MC_BUFFER_OFFSET, MC_BUFFER_SIZE,
+ magic_word, sizeof(magic_word),
+ MC_OFFSET_DELTA);
+}
+
+static int fsl_ls2_aiop_console_open(struct inode *node, struct file *fp)
+{
+ uint8_t magic_word[] = { 'P', 'O', 'I', 'A' };
+
+ return fsl_ls2_generic_console_open(node, fp,
+ AIOP_BUFFER_OFFSET, AIOP_BUFFER_SIZE,
+ magic_word, sizeof(magic_word),
+ AIOP_OFFSET_DELTA);
+}
+
+static int fsl_ls2_console_close(struct inode *node, struct file *fp)
+{
+ struct console_data *cd = fp->private_data;
+
+ iounmap(cd->map_addr);
+ kfree(cd);
+ return 0;
+}
+
+ssize_t fsl_ls2_console_read(struct file *fp, char __user *buf, size_t count,
+ loff_t *f_pos)
+{
+ struct console_data *cd = fp->private_data;
+ size_t bytes = 0;
+ char data;
+
+ /* Check if we need to adjust the end of data addr */
+ adjust_end(cd);
+
+ while ((count != bytes) && (cd->end_of_data != cd->cur_ptr)) {
+ if (((u64)cd->cur_ptr) % 64 == 0)
+ invalidate(cd->cur_ptr);
+
+ data = *(cd->cur_ptr);
+ if (copy_to_user(&buf[bytes], &data, 1))
+ return -EFAULT;
+ cd->cur_ptr++;
+ if (cd->cur_ptr >= cd->end_addr)
+ cd->cur_ptr = cd->start_addr;
+ ++bytes;
+ }
+ return bytes;
+}
+
+static const struct file_operations fsl_ls2_mc_console_fops = {
+ .owner = THIS_MODULE,
+ .open = fsl_ls2_mc_console_open,
+ .release = fsl_ls2_console_close,
+ .read = fsl_ls2_console_read,
+};
+
+static struct miscdevice fsl_ls2_mc_console_dev = {
+ .minor = MISC_DYNAMIC_MINOR,
+ .name = "fsl_mc_console",
+ .fops = &fsl_ls2_mc_console_fops
+};
+
+static const struct file_operations fsl_ls2_aiop_console_fops = {
+ .owner = THIS_MODULE,
+ .open = fsl_ls2_aiop_console_open,
+ .release = fsl_ls2_console_close,
+ .read = fsl_ls2_console_read,
+};
+
+static struct miscdevice fsl_ls2_aiop_console_dev = {
+ .minor = MISC_DYNAMIC_MINOR,
+ .name = "fsl_aiop_console",
+ .fops = &fsl_ls2_aiop_console_fops
+};
+
+static int __init fsl_ls2_console_init(void)
+{
+ int err = 0;
+
+ pr_info("Freescale LS2 console driver\n");
+ err = misc_register(&fsl_ls2_mc_console_dev);
+ if (err) {
+ pr_err("fsl_mc_console: cannot register device\n");
+ return err;
+ }
+ pr_info("fsl-ls2-console: device %s registered\n",
+ fsl_ls2_mc_console_dev.name);
+
+ err = misc_register(&fsl_ls2_aiop_console_dev);
+ if (err) {
+ pr_err("fsl_aiop_console: cannot register device\n");
+ return err;
+ }
+ pr_info("fsl-ls2-console: device %s registered\n",
+ fsl_ls2_aiop_console_dev.name);
+
+ return 0;
+}
+
+static void __exit fsl_ls2_console_exit(void)
+{
+ misc_deregister(&fsl_ls2_mc_console_dev);
+
+ misc_deregister(&fsl_ls2_aiop_console_dev);
+}
+
+module_init(fsl_ls2_console_init);
+module_exit(fsl_ls2_console_exit);
+
+MODULE_AUTHOR("Roy Pledge <roy.pledge@freescale.com>");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_DESCRIPTION("Freescale LS2 console driver");
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethernet/Makefile
@@ -0,0 +1,12 @@
+#
+# Makefile for the Freescale DPAA2 Ethernet controller
+#
+
+obj-$(CONFIG_FSL_DPAA2_ETH) += fsl-dpaa2-eth.o
+
+fsl-dpaa2-eth-objs := dpaa2-eth.o dpaa2-ethtool.o dpni.o
+fsl-dpaa2-eth-${CONFIG_FSL_DPAA2_ETH_DEBUGFS} += dpaa2-eth-debugfs.o
+fsl-dpaa2-eth-${CONFIG_FSL_DPAA2_ETH_CEETM} += dpaa2-eth-ceetm.o
+
+# Needed by the tracing framework
+CFLAGS_dpaa2-eth.o := -I$(src)
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethernet/README
@@ -0,0 +1,186 @@
+Freescale DPAA2 Ethernet driver
+===============================
+
+This file provides documentation for the Freescale DPAA2 Ethernet driver.
+
+
+Contents
+========
+ Supported Platforms
+ Architecture Overview
+ Creating a Network Interface
+ Features & Offloads
+
+
+Supported Platforms
+===================
+This driver provides networking support for Freescale DPAA2 SoCs, e.g.
+LS2080A, LS2088A, LS1088A.
+
+
+Architecture Overview
+=====================
+Unlike regular NICs, in the DPAA2 architecture there is no single hardware block
+representing network interfaces; instead, several separate hardware resources
+concur to provide the networking functionality:
+ - network interfaces
+ - queues, channels
+ - buffer pools
+ - MAC/PHY
+
+All hardware resources are allocated and configured through the Management
+Complex (MC) portals. MC abstracts most of these resources as DPAA2 objects
+and exposes ABIs through which they can be configured and controlled. A few
+hardware resources, like queues, do not have a corresponding MC object and
+are treated as internal resources of other objects.
+
+For a more detailed description of the DPAA2 architecture and its object
+abstractions see:
+ drivers/staging/fsl-mc/README.txt
+
+Each Linux net device is built on top of a Datapath Network Interface (DPNI)
+object and uses Buffer Pools (DPBPs), I/O Portals (DPIOs) and Concentrators
+(DPCONs).
+
+Configuration interface:
+
+ -----------------------
+ | DPAA2 Ethernet Driver |
+ -----------------------
+ . . .
+ . . .
+ . . . . . . . . . . . .
+ . . .
+ . . .
+ ---------- ---------- -----------
+ | DPBP API | | DPNI API | | DPCON API |
+ ---------- ---------- -----------
+ . . . software
+=========== . ========== . ============ . ===================
+ . . . hardware
+ ------------------------------------------
+ | MC hardware portals |
+ ------------------------------------------
+ . . .
+ . . .
+ ------ ------ -------
+ | DPBP | | DPNI | | DPCON |
+ ------ ------ -------
+
+The DPNIs are network interfaces without a direct one-on-one mapping to PHYs.
+DPBPs represent hardware buffer pools. Packet I/O is performed in the context
+of DPCON objects, using DPIO portals for managing and communicating with the
+hardware resources.
+
+Datapath (I/O) interface:
+
+ -----------------------------------------------
+ | DPAA2 Ethernet Driver |
+ -----------------------------------------------
+ | ^ ^ | |
+ | | | | |
+ enqueue| dequeue| data | dequeue| seed |
+ (Tx) | (Rx, TxC)| avail.| request| buffers|
+ | | notify| | |
+ | | | | |
+ V | | V V
+ -----------------------------------------------
+ | DPIO Driver |
+ -----------------------------------------------
+ | | | | | software
+ | | | | | ================
+ | | | | | hardware
+ -----------------------------------------------
+ | I/O hardware portals |
+ -----------------------------------------------
+ | ^ ^ | |
+ | | | | |
+ | | | V |
+ V | ================ V
+ ---------------------- | -------------
+ queues ---------------------- | | Buffer pool |
+ ---------------------- | -------------
+ =======================
+ Channel
+
+Datapath I/O (DPIO) portals provide enqueue and dequeue services, data
+availability notifications and buffer pool management. DPIOs are shared between
+all DPAA2 objects (and implicitly all DPAA2 kernel drivers) that work with data
+frames, but must be affine to the CPUs for the purpose of traffic distribution.
+
+Frames are transmitted and received through hardware frame queues, which can be
+grouped in channels for the purpose of hardware scheduling. The Ethernet driver
+enqueues TX frames on egress queues and after transmission is complete a TX
+confirmation frame is sent back to the CPU.
+
+When frames are available on ingress queues, a data availability notification
+is sent to the CPU; notifications are raised per channel, so even if multiple
+queues in the same channel have available frames, only one notification is sent.
+After a channel fires a notification, is must be explicitly rearmed.
+
+Each network interface can have multiple Rx, Tx and confirmation queues affined
+to CPUs, and one channel (DPCON) for each CPU that services at least one queue.
+DPCONs are used to distribute ingress traffic to different CPUs via the cores'
+affine DPIOs.
+
+The role of hardware buffer pools is storage of ingress frame data. Each network
+interface has a privately owned buffer pool which it seeds with kernel allocated
+buffers.
+
+
+DPNIs are decoupled from PHYs; a DPNI can be connected to a PHY through a DPMAC
+object or to another DPNI through an internal link, but the connection is
+managed by MC and completely transparent to the Ethernet driver.
+
+ --------- --------- ---------
+ | eth if1 | | eth if2 | | eth ifn |
+ --------- --------- ---------
+ . . .
+ . . .
+ . . .
+ ---------------------------
+ | DPAA2 Ethernet Driver |
+ ---------------------------
+ . . .
+ . . .
+ . . .
+ ------ ------ ------ -------
+ | DPNI | | DPNI | | DPNI | | DPMAC |----+
+ ------ ------ ------ ------- |
+ | | | | |
+ | | | | -----
+ =========== ================== | PHY |
+ -----
+
+Creating a Network Interface
+============================
+A net device is created for each DPNI object probed on the MC bus. Each DPNI has
+a number of properties which determine the network interface configuration
+options and associated hardware resources.
+
+DPNI objects (and the other DPAA2 objects needed for a network interface) can be
+added to a container on the MC bus in one of two ways: statically, through a
+Datapath Layout Binary file (DPL) that is parsed by MC at boot time; or created
+dynamically at runtime, via the DPAA2 objects APIs.
+
+
+Features & Offloads
+===================
+Hardware checksum offloading is supported for TCP and UDP over IPv4/6 frames.
+The checksum offloads can be independently configured on RX and TX through
+ethtool.
+
+Hardware offload of unicast and multicast MAC filtering is supported on the
+ingress path and permanently enabled.
+
+Scatter-gather frames are supported on both RX and TX paths. On TX, SG support
+is configurable via ethtool; on RX it is always enabled.
+
+The DPAA2 hardware can process jumbo Ethernet frames of up to 10K bytes.
+
+The Ethernet driver defines a static flow hashing scheme that distributes
+traffic based on a 5-tuple key: src IP, dst IP, IP proto, L4 src port,
+L4 dst port. No user configuration is supported for now.
+
+Hardware specific statistics for the network interface as well as some
+non-standard driver stats can be consulted through ethtool -S option.
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethernet/TODO
@@ -0,0 +1,18 @@
+* Add a DPAA2 MAC kernel driver in order to allow PHY management; currently
+ the DPMAC objects and their link to DPNIs are handled by MC internally
+ and all PHYs are seen as fixed-link
+* add more debug support: decide how to expose detailed debug statistics,
+ add ingress error queue support
+* MC firmware uprev; the DPAA2 objects used by the Ethernet driver need to
+ be kept in sync with binary interface changes in MC
+* refine README file
+* cleanup
+
+NOTE: None of the above is must-have before getting the DPAA2 Ethernet driver
+out of staging. The main requirement for that is to have the drivers it
+depends on, fsl-mc bus and DPIO driver, moved to drivers/bus and drivers/soc
+respectively.
+
+ Please send any patches to Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
+ ruxandra.radulescu@nxp.com, devel@driverdev.osuosl.org,
+ linux-kernel@vger.kernel.org
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth-ceetm.c
@@ -0,0 +1,1253 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/*
+ * Copyright 2017 NXP
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+
+#include "dpaa2-eth-ceetm.h"
+#include "dpaa2-eth.h"
+
+#define DPAA2_CEETM_DESCRIPTION "FSL DPAA2 CEETM qdisc"
+/* Conversion formula from userspace passed Bps to expected Mbit */
+#define dpaa2_eth_bps_to_mbit(rate) (rate >> 17)
+
+static const struct nla_policy dpaa2_ceetm_policy[DPAA2_CEETM_TCA_MAX] = {
+ [DPAA2_CEETM_TCA_COPT] = { .len = sizeof(struct dpaa2_ceetm_tc_copt) },
+ [DPAA2_CEETM_TCA_QOPS] = { .len = sizeof(struct dpaa2_ceetm_tc_qopt) },
+};
+
+struct Qdisc_ops dpaa2_ceetm_qdisc_ops;
+
+static inline int dpaa2_eth_set_ch_shaping(struct dpaa2_eth_priv *priv,
+ struct dpni_tx_shaping_cfg *scfg,
+ struct dpni_tx_shaping_cfg *ecfg,
+ int coupled, int ch_id)
+{
+ int err = 0;
+
+ netdev_dbg(priv->net_dev, "%s: ch_id %d rate %d mbps\n", __func__,
+ ch_id, scfg->rate_limit);
+ err = dpni_set_tx_shaping(priv->mc_io, 0, priv->mc_token, scfg,
+ ecfg, coupled);
+ if (err)
+ netdev_err(priv->net_dev, "dpni_set_tx_shaping err\n");
+
+ return err;
+}
+
+static inline int dpaa2_eth_reset_ch_shaping(struct dpaa2_eth_priv *priv,
+ int ch_id)
+{
+ struct dpni_tx_shaping_cfg cfg = { 0 };
+
+ return dpaa2_eth_set_ch_shaping(priv, &cfg, &cfg, 0, ch_id);
+}
+
+static inline int
+dpaa2_eth_update_shaping_cfg(struct net_device *dev,
+ struct dpaa2_ceetm_shaping_cfg cfg,
+ struct dpni_tx_shaping_cfg *scfg,
+ struct dpni_tx_shaping_cfg *ecfg)
+{
+ scfg->rate_limit = dpaa2_eth_bps_to_mbit(cfg.cir);
+ ecfg->rate_limit = dpaa2_eth_bps_to_mbit(cfg.eir);
+
+ if (cfg.cbs > DPAA2_ETH_MAX_BURST_SIZE) {
+ netdev_err(dev, "Committed burst size must be under %d\n",
+ DPAA2_ETH_MAX_BURST_SIZE);
+ return -EINVAL;
+ }
+
+ scfg->max_burst_size = cfg.cbs;
+
+ if (cfg.ebs > DPAA2_ETH_MAX_BURST_SIZE) {
+ netdev_err(dev, "Excess burst size must be under %d\n",
+ DPAA2_ETH_MAX_BURST_SIZE);
+ return -EINVAL;
+ }
+
+ ecfg->max_burst_size = cfg.ebs;
+
+ if ((!cfg.cir || !cfg.eir) && cfg.coupled) {
+ netdev_err(dev, "Coupling can be set when both CIR and EIR are finite\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+enum update_tx_prio {
+ DPAA2_ETH_ADD_CQ,
+ DPAA2_ETH_DEL_CQ,
+};
+
+/* Normalize weights based on max passed value */
+static inline int dpaa2_eth_normalize_tx_prio(struct dpaa2_ceetm_qdisc *priv)
+{
+ struct dpni_tx_schedule_cfg *sched_cfg;
+ struct dpaa2_ceetm_class *cl;
+ u32 qpri;
+ u16 weight_max = 0, increment;
+ int i;
+
+ /* Check the boundaries of the provided values */
+ for (i = 0; i < priv->clhash.hashsize; i++)
+ hlist_for_each_entry(cl, &priv->clhash.hash[i], common.hnode)
+ weight_max = (weight_max == 0 ? cl->prio.weight :
+ (weight_max < cl->prio.weight ?
+ cl->prio.weight : weight_max));
+
+ /* If there are no elements, there's nothing to do */
+ if (weight_max == 0)
+ return 0;
+
+ increment = (DPAA2_CEETM_MAX_WEIGHT - DPAA2_CEETM_MIN_WEIGHT) /
+ weight_max;
+
+ for (i = 0; i < priv->clhash.hashsize; i++) {
+ hlist_for_each_entry(cl, &priv->clhash.hash[i], common.hnode) {
+ if (cl->prio.mode == STRICT_PRIORITY)
+ continue;
+
+ qpri = cl->prio.qpri;
+ sched_cfg = &priv->prio.tx_prio_cfg.tc_sched[qpri];
+
+ sched_cfg->delta_bandwidth =
+ DPAA2_CEETM_MIN_WEIGHT +
+ (cl->prio.weight * increment);
+
+ pr_debug("%s: Normalized CQ qpri %d weight to %d\n",
+ __func__, qpri, sched_cfg->delta_bandwidth);
+ }
+ }
+
+ return 0;
+}
+
+static inline int dpaa2_eth_update_tx_prio(struct dpaa2_eth_priv *priv,
+ struct dpaa2_ceetm_class *cl,
+ enum update_tx_prio type)
+{
+ struct dpaa2_ceetm_qdisc *sch = qdisc_priv(cl->parent);
+ struct dpni_congestion_notification_cfg notif_cfg = {0};
+ struct dpni_tx_schedule_cfg *sched_cfg;
+ struct dpni_taildrop td = {0};
+ u8 ch_id = 0, tc_id = 0;
+ u32 qpri = 0;
+ int err = 0;
+
+ qpri = cl->prio.qpri;
+ tc_id = DPNI_BUILD_CH_TC(ch_id, qpri);
+
+ switch (type) {
+ case DPAA2_ETH_ADD_CQ:
+ /* Disable congestion notifications */
+ notif_cfg.threshold_entry = 0;
+ notif_cfg.threshold_exit = 0;
+ err = dpni_set_congestion_notification(priv->mc_io, 0,
+ priv->mc_token,
+ DPNI_QUEUE_TX, tc_id,
+ &notif_cfg);
+ if (err) {
+ netdev_err(priv->net_dev, "Error disabling congestion notifications %d\n",
+ err);
+ return err;
+ }
+ /* Enable taildrop */
+ td.enable = 1;
+ td.units = DPNI_CONGESTION_UNIT_FRAMES;
+ td.threshold = DPAA2_CEETM_TD_THRESHOLD;
+ err = dpni_set_taildrop(priv->mc_io, 0, priv->mc_token,
+ DPNI_CP_GROUP, DPNI_QUEUE_TX, tc_id,
+ 0, &td);
+ if (err) {
+ netdev_err(priv->net_dev, "Error enabling Tx taildrop %d\n",
+ err);
+ return err;
+ }
+ break;
+ case DPAA2_ETH_DEL_CQ:
+ /* Disable taildrop */
+ td.enable = 0;
+ err = dpni_set_taildrop(priv->mc_io, 0, priv->mc_token,
+ DPNI_CP_GROUP, DPNI_QUEUE_TX, tc_id,
+ 0, &td);
+ if (err) {
+ netdev_err(priv->net_dev, "Error disabling Tx taildrop %d\n",
+ err);
+ return err;
+ }
+ /* Enable congestion notifications */
+ notif_cfg.units = DPNI_CONGESTION_UNIT_BYTES;
+ notif_cfg.threshold_entry = DPAA2_ETH_TX_CONG_ENTRY_THRESH;
+ notif_cfg.threshold_exit = DPAA2_ETH_TX_CONG_EXIT_THRESH;
+ notif_cfg.message_ctx = (u64)priv;
+ notif_cfg.message_iova = priv->cscn_dma;
+ notif_cfg.notification_mode = DPNI_CONG_OPT_WRITE_MEM_ON_ENTER |
+ DPNI_CONG_OPT_WRITE_MEM_ON_EXIT |
+ DPNI_CONG_OPT_COHERENT_WRITE;
+ err = dpni_set_congestion_notification(priv->mc_io, 0,
+ priv->mc_token,
+ DPNI_QUEUE_TX, tc_id,
+ &notif_cfg);
+ if (err) {
+ netdev_err(priv->net_dev, "Error enabling congestion notifications %d\n",
+ err);
+ return err;
+ }
+ break;
+ }
+
+ /* We can zero out the structure in the tx_prio_conf array */
+ if (type == DPAA2_ETH_DEL_CQ) {
+ sched_cfg = &sch->prio.tx_prio_cfg.tc_sched[qpri];
+ memset(sched_cfg, 0, sizeof(*sched_cfg));
+ }
+
+ /* Normalize priorities */
+ err = dpaa2_eth_normalize_tx_prio(sch);
+
+ /* Debug print goes here */
+ print_hex_dump_debug("tx_prio: ", DUMP_PREFIX_OFFSET, 16, 1,
+ &sch->prio.tx_prio_cfg,
+ sizeof(sch->prio.tx_prio_cfg), 0);
+
+ /* Call dpni_set_tx_priorities for the entire prio qdisc */
+ err = dpni_set_tx_priorities(priv->mc_io, 0, priv->mc_token,
+ &sch->prio.tx_prio_cfg);
+ if (err)
+ netdev_err(priv->net_dev, "dpni_set_tx_priorities err %d\n",
+ err);
+
+ return err;
+}
+
+static void dpaa2_eth_ceetm_enable(struct dpaa2_eth_priv *priv)
+{
+ priv->ceetm_en = true;
+}
+
+static void dpaa2_eth_ceetm_disable(struct dpaa2_eth_priv *priv)
+{
+ priv->ceetm_en = false;
+}
+
+/* Find class in qdisc hash table using given handle */
+static inline struct dpaa2_ceetm_class *dpaa2_ceetm_find(u32 handle,
+ struct Qdisc *sch)
+{
+ struct dpaa2_ceetm_qdisc *priv = qdisc_priv(sch);
+ struct Qdisc_class_common *clc;
+
+ pr_debug(KBUILD_BASENAME " : %s : find class %X in qdisc %X\n",
+ __func__, handle, sch->handle);
+
+ clc = qdisc_class_find(&priv->clhash, handle);
+ return clc ? container_of(clc, struct dpaa2_ceetm_class, common) : NULL;
+}
+
+/* Insert a class in the qdisc's class hash */
+static void dpaa2_ceetm_link_class(struct Qdisc *sch,
+ struct Qdisc_class_hash *clhash,
+ struct Qdisc_class_common *common)
+{
+ sch_tree_lock(sch);
+ qdisc_class_hash_insert(clhash, common);
+ sch_tree_unlock(sch);
+ qdisc_class_hash_grow(sch, clhash);
+}
+
+/* Destroy a ceetm class */
+static void dpaa2_ceetm_cls_destroy(struct Qdisc *sch,
+ struct dpaa2_ceetm_class *cl)
+{
+ struct net_device *dev = qdisc_dev(sch);
+ struct dpaa2_eth_priv *priv = netdev_priv(dev);
+
+ if (!cl)
+ return;
+
+ pr_debug(KBUILD_BASENAME " : %s : destroy class %X from under %X\n",
+ __func__, cl->common.classid, sch->handle);
+
+ /* Recurse into child first */
+ if (cl->child) {
+ qdisc_destroy(cl->child);
+ cl->child = NULL;
+ }
+
+ switch (cl->type) {
+ case CEETM_ROOT:
+ if (dpaa2_eth_reset_ch_shaping(priv, cl->root.ch_id))
+ netdev_err(dev, "Error resetting channel shaping\n");
+
+ break;
+
+ case CEETM_PRIO:
+ if (dpaa2_eth_update_tx_prio(priv, cl, DPAA2_ETH_DEL_CQ))
+ netdev_err(dev, "Error resetting tx_priorities\n");
+
+ if (cl->prio.cstats)
+ free_percpu(cl->prio.cstats);
+
+ break;
+ }
+
+ tcf_destroy_chain(&cl->filter_list);
+ kfree(cl);
+}
+
+/* Destroy a ceetm qdisc */
+static void dpaa2_ceetm_destroy(struct Qdisc *sch)
+{
+ unsigned int i;
+ struct hlist_node *next;
+ struct dpaa2_ceetm_class *cl;
+ struct dpaa2_ceetm_qdisc *priv = qdisc_priv(sch);
+ struct net_device *dev = qdisc_dev(sch);
+ struct dpaa2_eth_priv *priv_eth = netdev_priv(dev);
+
+ pr_debug(KBUILD_BASENAME " : %s : destroy qdisc %X\n",
+ __func__, sch->handle);
+
+ /* All filters need to be removed before destroying the classes */
+ tcf_destroy_chain(&priv->filter_list);
+
+ for (i = 0; i < priv->clhash.hashsize; i++) {
+ hlist_for_each_entry(cl, &priv->clhash.hash[i], common.hnode)
+ tcf_destroy_chain(&cl->filter_list);
+ }
+
+ for (i = 0; i < priv->clhash.hashsize; i++) {
+ hlist_for_each_entry_safe(cl, next, &priv->clhash.hash[i],
+ common.hnode)
+ dpaa2_ceetm_cls_destroy(sch, cl);
+ }
+
+ qdisc_class_hash_destroy(&priv->clhash);
+
+ switch (priv->type) {
+ case CEETM_ROOT:
+ dpaa2_eth_ceetm_disable(priv_eth);
+
+ if (priv->root.qstats)
+ free_percpu(priv->root.qstats);
+
+ if (!priv->root.qdiscs)
+ break;
+
+ /* Destroy the pfifo qdiscs in case they haven't been attached
+ * to the netdev queues yet.
+ */
+ for (i = 0; i < dev->num_tx_queues; i++)
+ if (priv->root.qdiscs[i])
+ qdisc_destroy(priv->root.qdiscs[i]);
+
+ kfree(priv->root.qdiscs);
+ break;
+
+ case CEETM_PRIO:
+ if (priv->prio.parent)
+ priv->prio.parent->child = NULL;
+ break;
+ }
+}
+
+static int dpaa2_ceetm_dump(struct Qdisc *sch, struct sk_buff *skb)
+{
+ struct Qdisc *qdisc;
+ unsigned int ntx, i;
+ struct nlattr *nest;
+ struct dpaa2_ceetm_tc_qopt qopt;
+ struct dpaa2_ceetm_qdisc_stats *qstats;
+ struct net_device *dev = qdisc_dev(sch);
+ struct dpaa2_ceetm_qdisc *priv = qdisc_priv(sch);
+
+ pr_debug(KBUILD_BASENAME " : %s : qdisc %X\n", __func__, sch->handle);
+
+ sch_tree_lock(sch);
+ memset(&qopt, 0, sizeof(qopt));
+ qopt.type = priv->type;
+ qopt.shaped = priv->shaped;
+
+ switch (priv->type) {
+ case CEETM_ROOT:
+ /* Gather statistics from the underlying pfifo qdiscs */
+ sch->q.qlen = 0;
+ memset(&sch->bstats, 0, sizeof(sch->bstats));
+ memset(&sch->qstats, 0, sizeof(sch->qstats));
+
+ for (ntx = 0; ntx < dev->num_tx_queues; ntx++) {
+ qdisc = netdev_get_tx_queue(dev, ntx)->qdisc_sleeping;
+ sch->q.qlen += qdisc->q.qlen;
+ sch->bstats.bytes += qdisc->bstats.bytes;
+ sch->bstats.packets += qdisc->bstats.packets;
+ sch->qstats.qlen += qdisc->qstats.qlen;
+ sch->qstats.backlog += qdisc->qstats.backlog;
+ sch->qstats.drops += qdisc->qstats.drops;
+ sch->qstats.requeues += qdisc->qstats.requeues;
+ sch->qstats.overlimits += qdisc->qstats.overlimits;
+ }
+
+ for_each_online_cpu(i) {
+ qstats = per_cpu_ptr(priv->root.qstats, i);
+ sch->qstats.drops += qstats->drops;
+ }
+
+ break;
+
+ case CEETM_PRIO:
+ qopt.prio_group_A = priv->prio.tx_prio_cfg.prio_group_A;
+ qopt.prio_group_B = priv->prio.tx_prio_cfg.prio_group_B;
+ qopt.separate_groups = priv->prio.tx_prio_cfg.separate_groups;
+ break;
+
+ default:
+ pr_err(KBUILD_BASENAME " : %s : invalid qdisc\n", __func__);
+ sch_tree_unlock(sch);
+ return -EINVAL;
+ }
+
+ nest = nla_nest_start(skb, TCA_OPTIONS);
+ if (!nest)
+ goto nla_put_failure;
+ if (nla_put(skb, DPAA2_CEETM_TCA_QOPS, sizeof(qopt), &qopt))
+ goto nla_put_failure;
+ nla_nest_end(skb, nest);
+
+ sch_tree_unlock(sch);
+ return skb->len;
+
+nla_put_failure:
+ sch_tree_unlock(sch);
+ nla_nest_cancel(skb, nest);
+ return -EMSGSIZE;
+}
+
+static int dpaa2_ceetm_change_prio(struct Qdisc *sch,
+ struct dpaa2_ceetm_qdisc *priv,
+ struct dpaa2_ceetm_tc_qopt *qopt)
+{
+ /* TODO: Once LX2 support is added */
+ /* priv->shaped = parent_cl->shaped; */
+ priv->prio.tx_prio_cfg.prio_group_A = qopt->prio_group_A;
+ priv->prio.tx_prio_cfg.prio_group_B = qopt->prio_group_B;
+ priv->prio.tx_prio_cfg.separate_groups = qopt->separate_groups;
+
+ return 0;
+}
+
+/* Edit a ceetm qdisc */
+static int dpaa2_ceetm_change(struct Qdisc *sch, struct nlattr *opt)
+{
+ struct dpaa2_ceetm_qdisc *priv = qdisc_priv(sch);
+ struct nlattr *tb[DPAA2_CEETM_TCA_QOPS + 1];
+ struct dpaa2_ceetm_tc_qopt *qopt;
+ int err;
+
+ pr_debug(KBUILD_BASENAME " : %s : qdisc %X\n", __func__, sch->handle);
+
+ err = nla_parse_nested(tb, DPAA2_CEETM_TCA_QOPS, opt,
+ dpaa2_ceetm_policy);
+ if (err < 0) {
+ pr_err(KBUILD_BASENAME " : %s : tc error in %s\n", __func__,
+ "nla_parse_nested");
+ return err;
+ }
+
+ if (!tb[DPAA2_CEETM_TCA_QOPS]) {
+ pr_err(KBUILD_BASENAME " : %s : tc error in %s\n", __func__,
+ "tb");
+ return -EINVAL;
+ }
+
+ if (TC_H_MIN(sch->handle)) {
+ pr_err("CEETM: a qdisc should not have a minor\n");
+ return -EINVAL;
+ }
+
+ qopt = nla_data(tb[DPAA2_CEETM_TCA_QOPS]);
+
+ if (priv->type != qopt->type) {
+ pr_err("CEETM: qdisc %X is not of the provided type\n",
+ sch->handle);
+ return -EINVAL;
+ }
+
+ switch (priv->type) {
+ case CEETM_PRIO:
+ err = dpaa2_ceetm_change_prio(sch, priv, qopt);
+ break;
+ default:
+ pr_err(KBUILD_BASENAME " : %s : invalid qdisc\n", __func__);
+ err = -EINVAL;
+ }
+
+ return err;
+}
+
+/* Configure a root ceetm qdisc */
+static int dpaa2_ceetm_init_root(struct Qdisc *sch,
+ struct dpaa2_ceetm_qdisc *priv,
+ struct dpaa2_ceetm_tc_qopt *qopt)
+{
+ struct net_device *dev = qdisc_dev(sch);
+ struct dpaa2_eth_priv *priv_eth = netdev_priv(dev);
+ struct netdev_queue *dev_queue;
+ unsigned int i, parent_id;
+ struct Qdisc *qdisc;
+ int err;
+
+ pr_debug(KBUILD_BASENAME " : %s : qdisc %X\n", __func__, sch->handle);
+
+ /* Validate inputs */
+ if (sch->parent != TC_H_ROOT) {
+ pr_err("CEETM: a root ceetm qdisc can not be attached to a class\n");
+ tcf_destroy_chain(&priv->filter_list);
+ qdisc_class_hash_destroy(&priv->clhash);
+ return -EINVAL;
+ }
+
+ /* Pre-allocate underlying pfifo qdiscs.
+ *
+ * We want to offload shaping and scheduling decisions to the hardware.
+ * The pfifo qdiscs will be attached to the netdev queues and will
+ * guide the traffic from the IP stack down to the driver with minimum
+ * interference.
+ *
+ * The CEETM qdiscs and classes will be crossed when the traffic
+ * reaches the driver.
+ */
+ priv->root.qdiscs = kcalloc(dev->num_tx_queues,
+ sizeof(priv->root.qdiscs[0]),
+ GFP_KERNEL);
+ if (!priv->root.qdiscs) {
+ err = -ENOMEM;
+ goto err_init_root;
+ }
+
+ for (i = 0; i < dev->num_tx_queues; i++) {
+ dev_queue = netdev_get_tx_queue(dev, i);
+ parent_id = TC_H_MAKE(TC_H_MAJ(sch->handle),
+ TC_H_MIN(i + PFIFO_MIN_OFFSET));
+
+ qdisc = qdisc_create_dflt(dev_queue, &pfifo_qdisc_ops,
+ parent_id);
+ if (!qdisc) {
+ err = -ENOMEM;
+ goto err_init_root;
+ }
+
+ priv->root.qdiscs[i] = qdisc;
+ qdisc->flags |= TCQ_F_ONETXQUEUE;
+ }
+
+ sch->flags |= TCQ_F_MQROOT;
+
+ priv->root.qstats = alloc_percpu(struct dpaa2_ceetm_qdisc_stats);
+ if (!priv->root.qstats) {
+ pr_err(KBUILD_BASENAME " : %s : alloc_percpu() failed\n",
+ __func__);
+ err = -ENOMEM;
+ goto err_init_root;
+ }
+
+ dpaa2_eth_ceetm_enable(priv_eth);
+ return 0;
+
+err_init_root:
+ dpaa2_ceetm_destroy(sch);
+ return err;
+}
+
+/* Configure a prio ceetm qdisc */
+static int dpaa2_ceetm_init_prio(struct Qdisc *sch,
+ struct dpaa2_ceetm_qdisc *priv,
+ struct dpaa2_ceetm_tc_qopt *qopt)
+{
+ struct net_device *dev = qdisc_dev(sch);
+ struct dpaa2_ceetm_class *parent_cl;
+ struct Qdisc *parent_qdisc;
+ int err;
+
+ pr_debug(KBUILD_BASENAME " : %s : qdisc %X\n", __func__, sch->handle);
+
+ if (sch->parent == TC_H_ROOT) {
+ pr_err("CEETM: a prio ceetm qdisc can not be root\n");
+ err = -EINVAL;
+ goto err_init_prio;
+ }
+
+ parent_qdisc = qdisc_lookup(dev, TC_H_MAJ(sch->parent));
+ if (strcmp(parent_qdisc->ops->id, dpaa2_ceetm_qdisc_ops.id)) {
+ pr_err("CEETM: a ceetm qdisc can not be attached to other qdisc/class types\n");
+ err = -EINVAL;
+ goto err_init_prio;
+ }
+
+ /* Obtain the parent root ceetm_class */
+ parent_cl = dpaa2_ceetm_find(sch->parent, parent_qdisc);
+
+ if (!parent_cl || parent_cl->type != CEETM_ROOT) {
+ pr_err("CEETM: a prio ceetm qdiscs can be added only under a root ceetm class\n");
+ err = -EINVAL;
+ goto err_init_prio;
+ }
+
+ priv->prio.parent = parent_cl;
+ parent_cl->child = sch;
+
+ err = dpaa2_ceetm_change_prio(sch, priv, qopt);
+
+ return 0;
+
+err_init_prio:
+ dpaa2_ceetm_destroy(sch);
+ return err;
+}
+
+/* Configure a generic ceetm qdisc */
+static int dpaa2_ceetm_init(struct Qdisc *sch, struct nlattr *opt)
+{
+ struct dpaa2_ceetm_qdisc *priv = qdisc_priv(sch);
+ struct net_device *dev = qdisc_dev(sch);
+ struct nlattr *tb[DPAA2_CEETM_TCA_QOPS + 1];
+ struct dpaa2_ceetm_tc_qopt *qopt;
+ int err;
+
+ pr_debug(KBUILD_BASENAME " : %s : qdisc %X\n", __func__, sch->handle);
+
+ if (!netif_is_multiqueue(dev))
+ return -EOPNOTSUPP;
+
+ RCU_INIT_POINTER(priv->filter_list, NULL);
+
+ if (!opt) {
+ pr_err(KBUILD_BASENAME " : %s : tc error - opt = NULL\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ err = nla_parse_nested(tb, DPAA2_CEETM_TCA_QOPS, opt,
+ dpaa2_ceetm_policy);
+ if (err < 0) {
+ pr_err(KBUILD_BASENAME " : %s : tc error in %s\n", __func__,
+ "nla_parse_nested");
+ return err;
+ }
+
+ if (!tb[DPAA2_CEETM_TCA_QOPS]) {
+ pr_err(KBUILD_BASENAME " : %s : tc error in %s\n", __func__,
+ "tb");
+ return -EINVAL;
+ }
+
+ if (TC_H_MIN(sch->handle)) {
+ pr_err("CEETM: a qdisc should not have a minor\n");
+ return -EINVAL;
+ }
+
+ qopt = nla_data(tb[DPAA2_CEETM_TCA_QOPS]);
+
+ /* Initialize the class hash list. Each qdisc has its own class hash */
+ err = qdisc_class_hash_init(&priv->clhash);
+ if (err < 0) {
+ pr_err(KBUILD_BASENAME " : %s : qdisc_class_hash_init failed\n",
+ __func__);
+ return err;
+ }
+
+ priv->type = qopt->type;
+ priv->shaped = qopt->shaped;
+
+ switch (priv->type) {
+ case CEETM_ROOT:
+ err = dpaa2_ceetm_init_root(sch, priv, qopt);
+ break;
+ case CEETM_PRIO:
+ err = dpaa2_ceetm_init_prio(sch, priv, qopt);
+ break;
+ default:
+ pr_err(KBUILD_BASENAME " : %s : invalid qdisc\n", __func__);
+ dpaa2_ceetm_destroy(sch);
+ err = -EINVAL;
+ }
+
+ return err;
+}
+
+/* Attach the underlying pfifo qdiscs */
+static void dpaa2_ceetm_attach(struct Qdisc *sch)
+{
+ struct net_device *dev = qdisc_dev(sch);
+ struct dpaa2_ceetm_qdisc *priv = qdisc_priv(sch);
+ struct Qdisc *qdisc, *old_qdisc;
+ unsigned int i;
+
+ pr_debug(KBUILD_BASENAME " : %s : qdisc %X\n", __func__, sch->handle);
+
+ for (i = 0; i < dev->num_tx_queues; i++) {
+ qdisc = priv->root.qdiscs[i];
+ old_qdisc = dev_graft_qdisc(qdisc->dev_queue, qdisc);
+ if (old_qdisc)
+ qdisc_destroy(old_qdisc);
+ }
+
+ /* Remove the references to the pfifo qdiscs since the kernel will
+ * destroy them when needed. No cleanup from our part is required from
+ * this point on.
+ */
+ kfree(priv->root.qdiscs);
+ priv->root.qdiscs = NULL;
+}
+
+static unsigned long dpaa2_ceetm_cls_get(struct Qdisc *sch, u32 classid)
+{
+ struct dpaa2_ceetm_class *cl;
+
+ pr_debug(KBUILD_BASENAME " : %s : classid %X from qdisc %X\n",
+ __func__, classid, sch->handle);
+ cl = dpaa2_ceetm_find(classid, sch);
+
+ if (cl)
+ cl->refcnt++;
+
+ return (unsigned long)cl;
+}
+
+static void dpaa2_ceetm_cls_put(struct Qdisc *sch, unsigned long arg)
+{
+ struct dpaa2_ceetm_class *cl = (struct dpaa2_ceetm_class *)arg;
+ pr_debug(KBUILD_BASENAME " : %s : classid %X from qdisc %X\n",
+ __func__, cl->common.classid, sch->handle);
+ cl->refcnt--;
+
+ if (cl->refcnt == 0)
+ dpaa2_ceetm_cls_destroy(sch, cl);
+}
+
+static int dpaa2_ceetm_cls_change_root(struct dpaa2_ceetm_class *cl,
+ struct dpaa2_ceetm_tc_copt *copt,
+ struct net_device *dev)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(dev);
+ struct dpni_tx_shaping_cfg scfg = { 0 }, ecfg = { 0 };
+ int err = 0;
+
+ pr_debug(KBUILD_BASENAME " : %s : class %X\n", __func__,
+ cl->common.classid);
+
+ if (!cl->shaped)
+ return 0;
+
+ if (dpaa2_eth_update_shaping_cfg(dev, copt->shaping_cfg,
+ &scfg, &ecfg))
+ return -EINVAL;
+
+ err = dpaa2_eth_set_ch_shaping(priv, &scfg, &ecfg,
+ copt->shaping_cfg.coupled,
+ cl->root.ch_id);
+ if (err)
+ return err;
+
+ memcpy(&cl->root.shaping_cfg, &copt->shaping_cfg,
+ sizeof(struct dpaa2_ceetm_shaping_cfg));
+
+ return err;
+}
+
+static int dpaa2_ceetm_cls_change_prio(struct dpaa2_ceetm_class *cl,
+ struct dpaa2_ceetm_tc_copt *copt,
+ struct net_device *dev)
+{
+ struct dpaa2_ceetm_qdisc *sch = qdisc_priv(cl->parent);
+ struct dpni_tx_schedule_cfg *sched_cfg;
+ struct dpaa2_eth_priv *priv = netdev_priv(dev);
+ int err;
+
+ pr_debug(KBUILD_BASENAME " : %s : class %X mode %d weight %d\n",
+ __func__, cl->common.classid, copt->mode, copt->weight);
+
+ if (!cl->prio.cstats) {
+ cl->prio.cstats = alloc_percpu(struct dpaa2_ceetm_class_stats);
+ if (!cl->prio.cstats) {
+ pr_err(KBUILD_BASENAME " : %s : alloc_percpu() failed\n",
+ __func__);
+ return -ENOMEM;
+ }
+ }
+
+ cl->prio.mode = copt->mode;
+ cl->prio.weight = copt->weight;
+
+ sched_cfg = &sch->prio.tx_prio_cfg.tc_sched[cl->prio.qpri];
+
+ switch (copt->mode) {
+ case STRICT_PRIORITY:
+ sched_cfg->mode = DPNI_TX_SCHED_STRICT_PRIORITY;
+ break;
+ case WEIGHTED_A:
+ sched_cfg->mode = DPNI_TX_SCHED_WEIGHTED_A;
+ break;
+ case WEIGHTED_B:
+ sched_cfg->mode = DPNI_TX_SCHED_WEIGHTED_B;
+ break;
+ }
+
+ err = dpaa2_eth_update_tx_prio(priv, cl, DPAA2_ETH_ADD_CQ);
+
+ return err;
+}
+
+/* Add a new ceetm class */
+static int dpaa2_ceetm_cls_add(struct Qdisc *sch, u32 classid,
+ struct dpaa2_ceetm_tc_copt *copt,
+ unsigned long *arg)
+{
+ struct dpaa2_ceetm_qdisc *priv = qdisc_priv(sch);
+ struct net_device *dev = qdisc_dev(sch);
+ struct dpaa2_eth_priv *priv_eth = netdev_priv(dev);
+ struct dpaa2_ceetm_class *cl;
+ int err;
+
+ if (copt->type == CEETM_ROOT &&
+ priv->clhash.hashelems == dpaa2_eth_ch_count(priv_eth)) {
+ pr_err("CEETM: only %d channel%s per DPNI allowed, sorry\n",
+ dpaa2_eth_ch_count(priv_eth),
+ dpaa2_eth_ch_count(priv_eth) == 1 ? "" : "s");
+ return -EINVAL;
+ }
+
+ if (copt->type == CEETM_PRIO &&
+ priv->clhash.hashelems == dpaa2_eth_tc_count(priv_eth)) {
+ pr_err("CEETM: only %d queue%s per channel allowed, sorry\n",
+ dpaa2_eth_tc_count(priv_eth),
+ dpaa2_eth_tc_count(priv_eth) == 1 ? "" : "s");
+ return -EINVAL;
+ }
+
+ cl = kzalloc(sizeof(*cl), GFP_KERNEL);
+ if (!cl)
+ return -ENOMEM;
+
+ RCU_INIT_POINTER(cl->filter_list, NULL);
+
+ cl->common.classid = classid;
+ cl->refcnt = 1;
+ cl->parent = sch;
+ cl->child = NULL;
+
+ /* Add class handle in Qdisc */
+ dpaa2_ceetm_link_class(sch, &priv->clhash, &cl->common);
+
+ cl->shaped = copt->shaped;
+ cl->type = copt->type;
+
+ /* Claim a CEETM channel / tc - DPAA2. will assume transition from
+ * classid to qdid/qpri, starting from qdid / qpri 0
+ */
+ switch (copt->type) {
+ case CEETM_ROOT:
+ cl->root.ch_id = classid - sch->handle - 1;
+ err = dpaa2_ceetm_cls_change_root(cl, copt, dev);
+ break;
+ case CEETM_PRIO:
+ cl->prio.qpri = classid - sch->handle - 1;
+ err = dpaa2_ceetm_cls_change_prio(cl, copt, dev);
+ break;
+ default:
+ err = -EINVAL;
+ break;
+ }
+
+ if (err) {
+ pr_err("%s: Unable to set new %s class\n", __func__,
+ (copt->type == CEETM_ROOT ? "root" : "prio"));
+ goto out_free;
+ }
+
+ switch (copt->type) {
+ case CEETM_ROOT:
+ pr_debug(KBUILD_BASENAME " : %s : configured root class %X associated with channel qdid %d\n",
+ __func__, classid, cl->root.ch_id);
+ break;
+ case CEETM_PRIO:
+ pr_debug(KBUILD_BASENAME " : %s : configured prio class %X associated with queue qpri %d\n",
+ __func__, classid, cl->prio.qpri);
+ break;
+ }
+
+ *arg = (unsigned long)cl;
+ return 0;
+
+out_free:
+ kfree(cl);
+ return err;
+}
+
+/* Add or configure a ceetm class */
+static int dpaa2_ceetm_cls_change(struct Qdisc *sch, u32 classid, u32 parentid,
+ struct nlattr **tca, unsigned long *arg)
+{
+ struct dpaa2_ceetm_qdisc *priv;
+ struct dpaa2_ceetm_class *cl = (struct dpaa2_ceetm_class *)*arg;
+ struct nlattr *opt = tca[TCA_OPTIONS];
+ struct nlattr *tb[DPAA2_CEETM_TCA_MAX];
+ struct dpaa2_ceetm_tc_copt *copt;
+ struct net_device *dev = qdisc_dev(sch);
+ int err;
+
+ pr_debug(KBUILD_BASENAME " : %s : classid %X under qdisc %X\n",
+ __func__, classid, sch->handle);
+
+ if (strcmp(sch->ops->id, dpaa2_ceetm_qdisc_ops.id)) {
+ pr_err("CEETM: a ceetm class can not be attached to other qdisc/class types\n");
+ return -EINVAL;
+ }
+
+ priv = qdisc_priv(sch);
+
+ if (!opt) {
+ pr_err(KBUILD_BASENAME " : %s : tc error NULL opt\n", __func__);
+ return -EINVAL;
+ }
+
+ err = nla_parse_nested(tb, DPAA2_CEETM_TCA_COPT, opt,
+ dpaa2_ceetm_policy);
+ if (err < 0) {
+ pr_err(KBUILD_BASENAME " : %s : tc error in %s\n", __func__,
+ "nla_parse_nested");
+ return -EINVAL;
+ }
+
+ if (!tb[DPAA2_CEETM_TCA_COPT]) {
+ pr_err(KBUILD_BASENAME " : %s : tc error in %s\n", __func__,
+ "tb");
+ return -EINVAL;
+ }
+
+ copt = nla_data(tb[DPAA2_CEETM_TCA_COPT]);
+
+ /* Configure an existing ceetm class */
+ if (cl) {
+ if (copt->type != cl->type) {
+ pr_err("CEETM: class %X is not of the provided type\n",
+ cl->common.classid);
+ return -EINVAL;
+ }
+
+ switch (copt->type) {
+ case CEETM_ROOT:
+ return dpaa2_ceetm_cls_change_root(cl, copt, dev);
+ case CEETM_PRIO:
+ return dpaa2_ceetm_cls_change_prio(cl, copt, dev);
+
+ default:
+ pr_err(KBUILD_BASENAME " : %s : invalid class\n",
+ __func__);
+ return -EINVAL;
+ }
+ }
+
+ return dpaa2_ceetm_cls_add(sch, classid, copt, arg);
+}
+
+static void dpaa2_ceetm_cls_walk(struct Qdisc *sch, struct qdisc_walker *arg)
+{
+ struct dpaa2_ceetm_qdisc *priv = qdisc_priv(sch);
+ struct dpaa2_ceetm_class *cl;
+ unsigned int i;
+
+ pr_debug(KBUILD_BASENAME " : %s : qdisc %X\n", __func__, sch->handle);
+
+ if (arg->stop)
+ return;
+
+ for (i = 0; i < priv->clhash.hashsize; i++) {
+ hlist_for_each_entry(cl, &priv->clhash.hash[i], common.hnode) {
+ if (arg->count < arg->skip) {
+ arg->count++;
+ continue;
+ }
+ if (arg->fn(sch, (unsigned long)cl, arg) < 0) {
+ arg->stop = 1;
+ return;
+ }
+ arg->count++;
+ }
+ }
+}
+
+static int dpaa2_ceetm_cls_dump(struct Qdisc *sch, unsigned long arg,
+ struct sk_buff *skb, struct tcmsg *tcm)
+{
+ struct dpaa2_ceetm_class *cl = (struct dpaa2_ceetm_class *)arg;
+ struct nlattr *nest;
+ struct dpaa2_ceetm_tc_copt copt;
+
+ pr_debug(KBUILD_BASENAME " : %s : class %X under qdisc %X\n",
+ __func__, cl->common.classid, sch->handle);
+
+ sch_tree_lock(sch);
+
+ tcm->tcm_parent = ((struct Qdisc *)cl->parent)->handle;
+ tcm->tcm_handle = cl->common.classid;
+
+ memset(&copt, 0, sizeof(copt));
+
+ copt.shaped = cl->shaped;
+ copt.type = cl->type;
+
+ switch (cl->type) {
+ case CEETM_ROOT:
+ if (cl->child)
+ tcm->tcm_info = cl->child->handle;
+
+ memcpy(&copt.shaping_cfg, &cl->root.shaping_cfg,
+ sizeof(struct dpaa2_ceetm_shaping_cfg));
+
+ break;
+
+ case CEETM_PRIO:
+ if (cl->child)
+ tcm->tcm_info = cl->child->handle;
+
+ copt.mode = cl->prio.mode;
+ copt.weight = cl->prio.weight;
+
+ break;
+ }
+
+ nest = nla_nest_start(skb, TCA_OPTIONS);
+ if (!nest)
+ goto nla_put_failure;
+ if (nla_put(skb, DPAA2_CEETM_TCA_COPT, sizeof(copt), &copt))
+ goto nla_put_failure;
+ nla_nest_end(skb, nest);
+ sch_tree_unlock(sch);
+ return skb->len;
+
+nla_put_failure:
+ sch_tree_unlock(sch);
+ nla_nest_cancel(skb, nest);
+ return -EMSGSIZE;
+}
+
+static int dpaa2_ceetm_cls_delete(struct Qdisc *sch, unsigned long arg)
+{
+ struct dpaa2_ceetm_qdisc *priv = qdisc_priv(sch);
+ struct dpaa2_ceetm_class *cl = (struct dpaa2_ceetm_class *)arg;
+
+ pr_debug(KBUILD_BASENAME " : %s : class %X under qdisc %X\n",
+ __func__, cl->common.classid, sch->handle);
+
+ sch_tree_lock(sch);
+ qdisc_class_hash_remove(&priv->clhash, &cl->common);
+ cl->refcnt--;
+ WARN_ON(cl->refcnt == 0);
+ sch_tree_unlock(sch);
+ return 0;
+}
+
+/* Get the class' child qdisc, if any */
+static struct Qdisc *dpaa2_ceetm_cls_leaf(struct Qdisc *sch, unsigned long arg)
+{
+ struct dpaa2_ceetm_class *cl = (struct dpaa2_ceetm_class *)arg;
+
+ pr_debug(KBUILD_BASENAME " : %s : class %X under qdisc %X\n",
+ __func__, cl->common.classid, sch->handle);
+
+ switch (cl->type) {
+ case CEETM_ROOT:
+ case CEETM_PRIO:
+ return cl->child;
+ }
+
+ return NULL;
+}
+
+static int dpaa2_ceetm_cls_graft(struct Qdisc *sch, unsigned long arg,
+ struct Qdisc *new, struct Qdisc **old)
+{
+ if (new && strcmp(new->ops->id, dpaa2_ceetm_qdisc_ops.id)) {
+ pr_err("CEETM: only ceetm qdiscs can be attached to ceetm classes\n");
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
+static int dpaa2_ceetm_cls_dump_stats(struct Qdisc *sch, unsigned long arg,
+ struct gnet_dump *d)
+{
+ struct dpaa2_ceetm_class *cl = (struct dpaa2_ceetm_class *)arg;
+ struct gnet_stats_basic_packed tmp_bstats;
+ struct dpaa2_ceetm_tc_xstats xstats;
+ union dpni_statistics dpni_stats;
+ struct net_device *dev = qdisc_dev(sch);
+ struct dpaa2_eth_priv *priv_eth = netdev_priv(dev);
+ u8 ch_id = 0;
+ int err;
+
+ memset(&xstats, 0, sizeof(xstats));
+ memset(&tmp_bstats, 0, sizeof(tmp_bstats));
+
+ if (cl->type == CEETM_ROOT)
+ return 0;
+
+ err = dpni_get_statistics(priv_eth->mc_io, 0, priv_eth->mc_token, 3,
+ DPNI_BUILD_CH_TC(ch_id, cl->prio.qpri),
+ &dpni_stats);
+ if (err)
+ netdev_warn(dev, "dpni_get_stats(%d) failed - %d\n", 3, err);
+
+ xstats.ceetm_dequeue_bytes = dpni_stats.page_3.ceetm_dequeue_bytes;
+ xstats.ceetm_dequeue_frames = dpni_stats.page_3.ceetm_dequeue_frames;
+ xstats.ceetm_reject_bytes = dpni_stats.page_3.ceetm_reject_bytes;
+ xstats.ceetm_reject_frames = dpni_stats.page_3.ceetm_reject_frames;
+
+ return gnet_stats_copy_app(d, &xstats, sizeof(xstats));
+}
+
+static struct tcf_proto __rcu **dpaa2_ceetm_tcf_chain(struct Qdisc *sch,
+ unsigned long arg)
+{
+ struct dpaa2_ceetm_qdisc *priv = qdisc_priv(sch);
+ struct dpaa2_ceetm_class *cl = (struct dpaa2_ceetm_class *)arg;
+
+ pr_debug(KBUILD_BASENAME " : %s : class %X under qdisc %X\n", __func__,
+ cl ? cl->common.classid : 0, sch->handle);
+ return cl ? &cl->filter_list : &priv->filter_list;
+}
+
+static unsigned long dpaa2_ceetm_tcf_bind(struct Qdisc *sch,
+ unsigned long parent,
+ u32 classid)
+{
+ struct dpaa2_ceetm_class *cl = dpaa2_ceetm_find(classid, sch);
+
+ pr_debug(KBUILD_BASENAME " : %s : class %X under qdisc %X\n", __func__,
+ cl ? cl->common.classid : 0, sch->handle);
+ return (unsigned long)cl;
+}
+
+static void dpaa2_ceetm_tcf_unbind(struct Qdisc *sch, unsigned long arg)
+{
+ struct dpaa2_ceetm_class *cl = (struct dpaa2_ceetm_class *)arg;
+
+ pr_debug(KBUILD_BASENAME " : %s : class %X under qdisc %X\n", __func__,
+ cl ? cl->common.classid : 0, sch->handle);
+}
+
+const struct Qdisc_class_ops dpaa2_ceetm_cls_ops = {
+ .graft = dpaa2_ceetm_cls_graft,
+ .leaf = dpaa2_ceetm_cls_leaf,
+ .get = dpaa2_ceetm_cls_get,
+ .put = dpaa2_ceetm_cls_put,
+ .change = dpaa2_ceetm_cls_change,
+ .delete = dpaa2_ceetm_cls_delete,
+ .walk = dpaa2_ceetm_cls_walk,
+ .tcf_chain = dpaa2_ceetm_tcf_chain,
+ .bind_tcf = dpaa2_ceetm_tcf_bind,
+ .unbind_tcf = dpaa2_ceetm_tcf_unbind,
+ .dump = dpaa2_ceetm_cls_dump,
+ .dump_stats = dpaa2_ceetm_cls_dump_stats,
+};
+
+struct Qdisc_ops dpaa2_ceetm_qdisc_ops __read_mostly = {
+ .id = "ceetm",
+ .priv_size = sizeof(struct dpaa2_ceetm_qdisc),
+ .cl_ops = &dpaa2_ceetm_cls_ops,
+ .init = dpaa2_ceetm_init,
+ .destroy = dpaa2_ceetm_destroy,
+ .change = dpaa2_ceetm_change,
+ .dump = dpaa2_ceetm_dump,
+ .attach = dpaa2_ceetm_attach,
+ .owner = THIS_MODULE,
+};
+
+/* Run the filters and classifiers attached to the qdisc on the provided skb */
+int dpaa2_ceetm_classify(struct sk_buff *skb, struct Qdisc *sch,
+ int *qdid, int *qpri)
+{
+ struct dpaa2_ceetm_qdisc *priv = qdisc_priv(sch);
+ struct dpaa2_ceetm_class *cl = NULL;
+ struct tcf_result res;
+ struct tcf_proto *tcf;
+ int result;
+
+ tcf = rcu_dereference_bh(priv->filter_list);
+ while (tcf && (result = tc_classify(skb, tcf, &res, false)) >= 0) {
+#ifdef CONFIG_NET_CLS_ACT
+ switch (result) {
+ case TC_ACT_QUEUED:
+ case TC_ACT_STOLEN:
+ case TC_ACT_SHOT:
+ /* No valid class found due to action */
+ return -1;
+ }
+#endif
+ cl = (void *)res.class;
+ if (!cl) {
+ /* The filter leads to the qdisc */
+ if (res.classid == sch->handle)
+ return 0;
+
+ cl = dpaa2_ceetm_find(res.classid, sch);
+ /* The filter leads to an invalid class */
+ if (!cl)
+ break;
+ }
+
+ /* The class might have its own filters attached */
+ tcf = rcu_dereference_bh(cl->filter_list);
+ }
+
+ /* No valid class found */
+ if (!cl)
+ return 0;
+
+ switch (cl->type) {
+ case CEETM_ROOT:
+ *qdid = cl->root.ch_id;
+
+ /* The root class does not have a child prio qdisc */
+ if (!cl->child)
+ return 0;
+
+ /* Run the prio qdisc classifiers */
+ return dpaa2_ceetm_classify(skb, cl->child, qdid, qpri);
+
+ case CEETM_PRIO:
+ *qpri = cl->prio.qpri;
+ break;
+ }
+
+ return 0;
+}
+
+int __init dpaa2_ceetm_register(void)
+{
+ int err = 0;
+
+ pr_debug(KBUILD_MODNAME ": " DPAA2_CEETM_DESCRIPTION "\n");
+
+ err = register_qdisc(&dpaa2_ceetm_qdisc_ops);
+ if (unlikely(err))
+ pr_err(KBUILD_MODNAME
+ ": %s:%hu:%s(): register_qdisc() = %d\n",
+ KBUILD_BASENAME ".c", __LINE__, __func__, err);
+
+ return err;
+}
+
+void __exit dpaa2_ceetm_unregister(void)
+{
+ pr_debug(KBUILD_MODNAME ": %s:%s() ->\n",
+ KBUILD_BASENAME ".c", __func__);
+
+ unregister_qdisc(&dpaa2_ceetm_qdisc_ops);
+}
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth-ceetm.h
@@ -0,0 +1,182 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/*
+ * Copyright 2017 NXP
+ *
+ */
+
+#ifndef __DPAA2_ETH_CEETM_H
+#define __DPAA2_ETH_CEETM_H
+
+#include <net/pkt_sched.h>
+#include <net/pkt_cls.h>
+#include <net/netlink.h>
+
+#include "dpaa2-eth.h"
+
+/* For functional purposes, there are num_tx_queues pfifo qdiscs through which
+ * frames reach the driver. Their handles start from 1:21. Handles 1:1 to 1:20
+ * are reserved for the maximum 32 CEETM channels (majors and minors are in
+ * hex).
+ */
+#define PFIFO_MIN_OFFSET 0x21
+
+#define DPAA2_CEETM_MIN_WEIGHT 100
+#define DPAA2_CEETM_MAX_WEIGHT 24800
+
+#define DPAA2_CEETM_TD_THRESHOLD 1000
+
+enum wbfs_group_type {
+ WBFS_GRP_A,
+ WBFS_GRP_B,
+ WBFS_GRP_LARGE
+};
+
+enum {
+ DPAA2_CEETM_TCA_UNSPEC,
+ DPAA2_CEETM_TCA_COPT,
+ DPAA2_CEETM_TCA_QOPS,
+ DPAA2_CEETM_TCA_MAX,
+};
+
+/* CEETM configuration types */
+enum dpaa2_ceetm_type {
+ CEETM_ROOT = 1,
+ CEETM_PRIO,
+};
+
+enum {
+ STRICT_PRIORITY = 0,
+ WEIGHTED_A,
+ WEIGHTED_B,
+};
+
+struct dpaa2_ceetm_shaping_cfg {
+ __u64 cir; /* committed information rate */
+ __u64 eir; /* excess information rate */
+ __u16 cbs; /* committed burst size */
+ __u16 ebs; /* excess burst size */
+ __u8 coupled; /* shaper coupling */
+};
+
+extern const struct nla_policy ceetm_policy[DPAA2_CEETM_TCA_MAX];
+
+struct dpaa2_ceetm_class;
+struct dpaa2_ceetm_qdisc_stats;
+struct dpaa2_ceetm_class_stats;
+
+/* corresponds to CEETM shaping at LNI level */
+struct dpaa2_root_q {
+ struct Qdisc **qdiscs;
+ struct dpaa2_ceetm_qdisc_stats __percpu *qstats;
+};
+
+/* corresponds to the number of priorities a channel serves */
+struct dpaa2_prio_q {
+ struct dpaa2_ceetm_class *parent;
+ struct dpni_tx_priorities_cfg tx_prio_cfg;
+};
+
+struct dpaa2_ceetm_qdisc {
+ struct Qdisc_class_hash clhash;
+ struct tcf_proto *filter_list; /* qdisc attached filters */
+
+ enum dpaa2_ceetm_type type; /* ROOT/PRIO */
+ bool shaped;
+ union {
+ struct dpaa2_root_q root;
+ struct dpaa2_prio_q prio;
+ };
+};
+
+/* CEETM Qdisc configuration parameters */
+struct dpaa2_ceetm_tc_qopt {
+ enum dpaa2_ceetm_type type;
+ __u16 shaped;
+ __u8 prio_group_A;
+ __u8 prio_group_B;
+ __u8 separate_groups;
+};
+
+/* root class - corresponds to a channel */
+struct dpaa2_root_c {
+ struct dpaa2_ceetm_shaping_cfg shaping_cfg;
+ u32 ch_id;
+};
+
+/* prio class - corresponds to a strict priority queue (group) */
+struct dpaa2_prio_c {
+ struct dpaa2_ceetm_class_stats __percpu *cstats;
+ u32 qpri;
+ u8 mode;
+ u16 weight;
+};
+
+struct dpaa2_ceetm_class {
+ struct Qdisc_class_common common;
+ int refcnt;
+ struct tcf_proto *filter_list; /* class attached filters */
+ struct Qdisc *parent;
+ struct Qdisc *child;
+
+ enum dpaa2_ceetm_type type; /* ROOT/PRIO */
+ bool shaped;
+ union {
+ struct dpaa2_root_c root;
+ struct dpaa2_prio_c prio;
+ };
+};
+
+/* CEETM Class configuration parameters */
+struct dpaa2_ceetm_tc_copt {
+ enum dpaa2_ceetm_type type;
+ struct dpaa2_ceetm_shaping_cfg shaping_cfg;
+ __u16 shaped;
+ __u8 mode;
+ __u16 weight;
+};
+
+/* CEETM stats */
+struct dpaa2_ceetm_qdisc_stats {
+ __u32 drops;
+};
+
+struct dpaa2_ceetm_class_stats {
+ /* Software counters */
+ struct gnet_stats_basic_packed bstats;
+ __u32 ern_drop_count;
+ __u32 congested_count;
+};
+
+struct dpaa2_ceetm_tc_xstats {
+ __u64 ceetm_dequeue_bytes;
+ __u64 ceetm_dequeue_frames;
+ __u64 ceetm_reject_bytes;
+ __u64 ceetm_reject_frames;
+};
+
+#ifdef CONFIG_FSL_DPAA2_ETH_CEETM
+int __init dpaa2_ceetm_register(void);
+void __exit dpaa2_ceetm_unregister(void);
+int dpaa2_ceetm_classify(struct sk_buff *skb, struct Qdisc *sch,
+ int *qdid, int *qpri);
+#else
+static inline int dpaa2_ceetm_register(void)
+{
+ return 0;
+}
+
+static inline void dpaa2_ceetm_unregister(void) {}
+
+static inline int dpaa2_ceetm_classify(struct sk_buff *skb, struct Qdisc *sch,
+ int *qdid, int *qpri)
+{
+ return 0;
+}
+#endif
+
+static inline bool dpaa2_eth_ceetm_is_enabled(struct dpaa2_eth_priv *priv)
+{
+ return priv->ceetm_en;
+}
+
+#endif
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth-debugfs.c
@@ -0,0 +1,357 @@
+
+/* Copyright 2015 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <linux/module.h>
+#include <linux/debugfs.h>
+#include "dpaa2-eth.h"
+#include "dpaa2-eth-debugfs.h"
+
+#define DPAA2_ETH_DBG_ROOT "dpaa2-eth"
+
+static struct dentry *dpaa2_dbg_root;
+
+static int dpaa2_dbg_cpu_show(struct seq_file *file, void *offset)
+{
+ struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)file->private;
+ struct rtnl_link_stats64 *stats;
+ struct dpaa2_eth_drv_stats *extras;
+ int i;
+
+ seq_printf(file, "Per-CPU stats for %s\n", priv->net_dev->name);
+ seq_printf(file, "%s%16s%16s%16s%16s%16s%16s%16s%16s%16s\n",
+ "CPU", "Rx", "Rx Err", "Rx SG", "Tx", "Tx Err", "Tx conf",
+ "Tx SG", "Tx realloc", "Enq busy");
+
+ for_each_online_cpu(i) {
+ stats = per_cpu_ptr(priv->percpu_stats, i);
+ extras = per_cpu_ptr(priv->percpu_extras, i);
+ seq_printf(file, "%3d%16llu%16llu%16llu%16llu%16llu%16llu%16llu%16llu%16llu\n",
+ i,
+ stats->rx_packets,
+ stats->rx_errors,
+ extras->rx_sg_frames,
+ stats->tx_packets,
+ stats->tx_errors,
+ extras->tx_conf_frames,
+ extras->tx_sg_frames,
+ extras->tx_reallocs,
+ extras->tx_portal_busy);
+ }
+
+ return 0;
+}
+
+static int dpaa2_dbg_cpu_open(struct inode *inode, struct file *file)
+{
+ int err;
+ struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)inode->i_private;
+
+ err = single_open(file, dpaa2_dbg_cpu_show, priv);
+ if (err < 0)
+ netdev_err(priv->net_dev, "single_open() failed\n");
+
+ return err;
+}
+
+static const struct file_operations dpaa2_dbg_cpu_ops = {
+ .open = dpaa2_dbg_cpu_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static char *fq_type_to_str(struct dpaa2_eth_fq *fq)
+{
+ switch (fq->type) {
+ case DPAA2_RX_FQ:
+ return "Rx";
+ case DPAA2_TX_CONF_FQ:
+ return "Tx conf";
+ case DPAA2_RX_ERR_FQ:
+ return "Rx err";
+ default:
+ return "N/A";
+ }
+}
+
+static int dpaa2_dbg_fqs_show(struct seq_file *file, void *offset)
+{
+ struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)file->private;
+ struct dpaa2_eth_fq *fq;
+ u32 fcnt, bcnt;
+ int i, err;
+
+ seq_printf(file, "non-zero FQ stats for %s:\n", priv->net_dev->name);
+ seq_printf(file, "%s%16s%16s%16s%16s%16s%16s\n",
+ "VFQID", "CPU", "Traffic Class", "Type", "Frames",
+ "Pending frames", "Congestion");
+
+ for (i = 0; i < priv->num_fqs; i++) {
+ fq = &priv->fq[i];
+ err = dpaa2_io_query_fq_count(NULL, fq->fqid, &fcnt, &bcnt);
+ if (err)
+ fcnt = 0;
+
+ /* A lot of queues, no use displaying zero traffic ones */
+ if (!fq->stats.frames && !fcnt)
+ continue;
+
+ seq_printf(file, "%5d%16d%16d%16s%16llu%16u%16llu\n",
+ fq->fqid,
+ fq->target_cpu,
+ fq->tc,
+ fq_type_to_str(fq),
+ fq->stats.frames,
+ fcnt,
+ fq->stats.congestion_entry);
+ }
+
+ return 0;
+}
+
+static int dpaa2_dbg_fqs_open(struct inode *inode, struct file *file)
+{
+ int err;
+ struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)inode->i_private;
+
+ err = single_open(file, dpaa2_dbg_fqs_show, priv);
+ if (err < 0)
+ netdev_err(priv->net_dev, "single_open() failed\n");
+
+ return err;
+}
+
+static const struct file_operations dpaa2_dbg_fq_ops = {
+ .open = dpaa2_dbg_fqs_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int dpaa2_dbg_ch_show(struct seq_file *file, void *offset)
+{
+ struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)file->private;
+ struct dpaa2_eth_channel *ch;
+ int i;
+
+ seq_printf(file, "Channel stats for %s:\n", priv->net_dev->name);
+ seq_printf(file, "%s%16s%16s%16s%16s%16s%16s\n",
+ "CHID", "CPU", "Deq busy", "Frames", "CDANs",
+ "Avg frm/CDAN", "Buf count");
+
+ for (i = 0; i < priv->num_channels; i++) {
+ ch = priv->channel[i];
+ seq_printf(file, "%4d%16d%16llu%16llu%16llu%16llu%16d\n",
+ ch->ch_id,
+ ch->nctx.desired_cpu,
+ ch->stats.dequeue_portal_busy,
+ ch->stats.frames,
+ ch->stats.cdan,
+ ch->stats.frames / ch->stats.cdan,
+ ch->buf_count);
+ }
+
+ return 0;
+}
+
+static int dpaa2_dbg_ch_open(struct inode *inode, struct file *file)
+{
+ int err;
+ struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)inode->i_private;
+
+ err = single_open(file, dpaa2_dbg_ch_show, priv);
+ if (err < 0)
+ netdev_err(priv->net_dev, "single_open() failed\n");
+
+ return err;
+}
+
+static const struct file_operations dpaa2_dbg_ch_ops = {
+ .open = dpaa2_dbg_ch_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static ssize_t dpaa2_dbg_reset_write(struct file *file, const char __user *buf,
+ size_t count, loff_t *offset)
+{
+ struct dpaa2_eth_priv *priv = file->private_data;
+ struct rtnl_link_stats64 *percpu_stats;
+ struct dpaa2_eth_drv_stats *percpu_extras;
+ struct dpaa2_eth_fq *fq;
+ struct dpaa2_eth_channel *ch;
+ int i;
+
+ for_each_online_cpu(i) {
+ percpu_stats = per_cpu_ptr(priv->percpu_stats, i);
+ memset(percpu_stats, 0, sizeof(*percpu_stats));
+
+ percpu_extras = per_cpu_ptr(priv->percpu_extras, i);
+ memset(percpu_extras, 0, sizeof(*percpu_extras));
+ }
+
+ for (i = 0; i < priv->num_fqs; i++) {
+ fq = &priv->fq[i];
+ memset(&fq->stats, 0, sizeof(fq->stats));
+ }
+
+ for (i = 0; i < priv->num_channels; i++) {
+ ch = priv->channel[i];
+ memset(&ch->stats, 0, sizeof(ch->stats));
+ }
+
+ return count;
+}
+
+static const struct file_operations dpaa2_dbg_reset_ops = {
+ .open = simple_open,
+ .write = dpaa2_dbg_reset_write,
+};
+
+static ssize_t dpaa2_dbg_reset_mc_write(struct file *file,
+ const char __user *buf,
+ size_t count, loff_t *offset)
+{
+ struct dpaa2_eth_priv *priv = file->private_data;
+ int err;
+
+ err = dpni_reset_statistics(priv->mc_io, 0, priv->mc_token);
+ if (err)
+ netdev_err(priv->net_dev,
+ "dpni_reset_statistics() failed %d\n", err);
+
+ return count;
+}
+
+static const struct file_operations dpaa2_dbg_reset_mc_ops = {
+ .open = simple_open,
+ .write = dpaa2_dbg_reset_mc_write,
+};
+
+void dpaa2_dbg_add(struct dpaa2_eth_priv *priv)
+{
+ if (!dpaa2_dbg_root)
+ return;
+
+ /* Create a directory for the interface */
+ priv->dbg.dir = debugfs_create_dir(priv->net_dev->name,
+ dpaa2_dbg_root);
+ if (!priv->dbg.dir) {
+ netdev_err(priv->net_dev, "debugfs_create_dir() failed\n");
+ return;
+ }
+
+ /* per-cpu stats file */
+ priv->dbg.cpu_stats = debugfs_create_file("cpu_stats", 0444,
+ priv->dbg.dir, priv,
+ &dpaa2_dbg_cpu_ops);
+ if (!priv->dbg.cpu_stats) {
+ netdev_err(priv->net_dev, "debugfs_create_file() failed\n");
+ goto err_cpu_stats;
+ }
+
+ /* per-fq stats file */
+ priv->dbg.fq_stats = debugfs_create_file("fq_stats", 0444,
+ priv->dbg.dir, priv,
+ &dpaa2_dbg_fq_ops);
+ if (!priv->dbg.fq_stats) {
+ netdev_err(priv->net_dev, "debugfs_create_file() failed\n");
+ goto err_fq_stats;
+ }
+
+ /* per-fq stats file */
+ priv->dbg.ch_stats = debugfs_create_file("ch_stats", 0444,
+ priv->dbg.dir, priv,
+ &dpaa2_dbg_ch_ops);
+ if (!priv->dbg.fq_stats) {
+ netdev_err(priv->net_dev, "debugfs_create_file() failed\n");
+ goto err_ch_stats;
+ }
+
+ /* reset stats */
+ priv->dbg.reset_stats = debugfs_create_file("reset_stats", 0200,
+ priv->dbg.dir, priv,
+ &dpaa2_dbg_reset_ops);
+ if (!priv->dbg.reset_stats) {
+ netdev_err(priv->net_dev, "debugfs_create_file() failed\n");
+ goto err_reset_stats;
+ }
+
+ /* reset MC stats */
+ priv->dbg.reset_mc_stats = debugfs_create_file("reset_mc_stats",
+ 0222, priv->dbg.dir, priv,
+ &dpaa2_dbg_reset_mc_ops);
+ if (!priv->dbg.reset_mc_stats) {
+ netdev_err(priv->net_dev, "debugfs_create_file() failed\n");
+ goto err_reset_mc_stats;
+ }
+
+ return;
+
+err_reset_mc_stats:
+ debugfs_remove(priv->dbg.reset_stats);
+err_reset_stats:
+ debugfs_remove(priv->dbg.ch_stats);
+err_ch_stats:
+ debugfs_remove(priv->dbg.fq_stats);
+err_fq_stats:
+ debugfs_remove(priv->dbg.cpu_stats);
+err_cpu_stats:
+ debugfs_remove(priv->dbg.dir);
+}
+
+void dpaa2_dbg_remove(struct dpaa2_eth_priv *priv)
+{
+ debugfs_remove(priv->dbg.reset_mc_stats);
+ debugfs_remove(priv->dbg.reset_stats);
+ debugfs_remove(priv->dbg.fq_stats);
+ debugfs_remove(priv->dbg.ch_stats);
+ debugfs_remove(priv->dbg.cpu_stats);
+ debugfs_remove(priv->dbg.dir);
+}
+
+void dpaa2_eth_dbg_init(void)
+{
+ dpaa2_dbg_root = debugfs_create_dir(DPAA2_ETH_DBG_ROOT, NULL);
+ if (!dpaa2_dbg_root) {
+ pr_err("DPAA2-ETH: debugfs create failed\n");
+ return;
+ }
+
+ pr_info("DPAA2-ETH: debugfs created\n");
+}
+
+void __exit dpaa2_eth_dbg_exit(void)
+{
+ debugfs_remove(dpaa2_dbg_root);
+}
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth-debugfs.h
@@ -0,0 +1,60 @@
+/* Copyright 2015 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef DPAA2_ETH_DEBUGFS_H
+#define DPAA2_ETH_DEBUGFS_H
+
+#include <linux/dcache.h>
+
+struct dpaa2_eth_priv;
+
+struct dpaa2_debugfs {
+ struct dentry *dir;
+ struct dentry *fq_stats;
+ struct dentry *ch_stats;
+ struct dentry *cpu_stats;
+ struct dentry *reset_stats;
+ struct dentry *reset_mc_stats;
+};
+
+#ifdef CONFIG_FSL_DPAA2_ETH_DEBUGFS
+void dpaa2_eth_dbg_init(void);
+void dpaa2_eth_dbg_exit(void);
+void dpaa2_dbg_add(struct dpaa2_eth_priv *priv);
+void dpaa2_dbg_remove(struct dpaa2_eth_priv *priv);
+#else
+static inline void dpaa2_eth_dbg_init(void) {}
+static inline void dpaa2_eth_dbg_exit(void) {}
+static inline void dpaa2_dbg_add(struct dpaa2_eth_priv *priv) {}
+static inline void dpaa2_dbg_remove(struct dpaa2_eth_priv *priv) {}
+#endif /* CONFIG_FSL_DPAA2_ETH_DEBUGFS */
+
+#endif /* DPAA2_ETH_DEBUGFS_H */
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth-trace.h
@@ -0,0 +1,185 @@
+/* Copyright 2014-2015 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM dpaa2_eth
+
+#if !defined(_DPAA2_ETH_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _DPAA2_ETH_TRACE_H
+
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include "dpaa2-eth.h"
+#include <linux/tracepoint.h>
+
+#define TR_FMT "[%s] fd: addr=0x%llx, len=%u, off=%u"
+/* trace_printk format for raw buffer event class */
+#define TR_BUF_FMT "[%s] vaddr=%p size=%zu dma_addr=%pad map_size=%zu bpid=%d"
+
+/* This is used to declare a class of events.
+ * individual events of this type will be defined below.
+ */
+
+/* Store details about a frame descriptor */
+DECLARE_EVENT_CLASS(dpaa2_eth_fd,
+ /* Trace function prototype */
+ TP_PROTO(struct net_device *netdev,
+ const struct dpaa2_fd *fd),
+
+ /* Repeat argument list here */
+ TP_ARGS(netdev, fd),
+
+ /* A structure containing the relevant information we want
+ * to record. Declare name and type for each normal element,
+ * name, type and size for arrays. Use __string for variable
+ * length strings.
+ */
+ TP_STRUCT__entry(
+ __field(u64, fd_addr)
+ __field(u32, fd_len)
+ __field(u16, fd_offset)
+ __string(name, netdev->name)
+ ),
+
+ /* The function that assigns values to the above declared
+ * fields
+ */
+ TP_fast_assign(
+ __entry->fd_addr = dpaa2_fd_get_addr(fd);
+ __entry->fd_len = dpaa2_fd_get_len(fd);
+ __entry->fd_offset = dpaa2_fd_get_offset(fd);
+ __assign_str(name, netdev->name);
+ ),
+
+ /* This is what gets printed when the trace event is
+ * triggered.
+ */
+ TP_printk(TR_FMT,
+ __get_str(name),
+ __entry->fd_addr,
+ __entry->fd_len,
+ __entry->fd_offset)
+);
+
+/* Now declare events of the above type. Format is:
+ * DEFINE_EVENT(class, name, proto, args), with proto and args same as for class
+ */
+
+/* Tx (egress) fd */
+DEFINE_EVENT(dpaa2_eth_fd, dpaa2_tx_fd,
+ TP_PROTO(struct net_device *netdev,
+ const struct dpaa2_fd *fd),
+
+ TP_ARGS(netdev, fd)
+);
+
+/* Rx fd */
+DEFINE_EVENT(dpaa2_eth_fd, dpaa2_rx_fd,
+ TP_PROTO(struct net_device *netdev,
+ const struct dpaa2_fd *fd),
+
+ TP_ARGS(netdev, fd)
+);
+
+/* Tx confirmation fd */
+DEFINE_EVENT(dpaa2_eth_fd, dpaa2_tx_conf_fd,
+ TP_PROTO(struct net_device *netdev,
+ const struct dpaa2_fd *fd),
+
+ TP_ARGS(netdev, fd)
+);
+
+/* Log data about raw buffers. Useful for tracing DPBP content. */
+TRACE_EVENT(dpaa2_eth_buf_seed,
+ /* Trace function prototype */
+ TP_PROTO(struct net_device *netdev,
+ /* virtual address and size */
+ void *vaddr,
+ size_t size,
+ /* dma map address and size */
+ dma_addr_t dma_addr,
+ size_t map_size,
+ /* buffer pool id, if relevant */
+ u16 bpid),
+
+ /* Repeat argument list here */
+ TP_ARGS(netdev, vaddr, size, dma_addr, map_size, bpid),
+
+ /* A structure containing the relevant information we want
+ * to record. Declare name and type for each normal element,
+ * name, type and size for arrays. Use __string for variable
+ * length strings.
+ */
+ TP_STRUCT__entry(
+ __field(void *, vaddr)
+ __field(size_t, size)
+ __field(dma_addr_t, dma_addr)
+ __field(size_t, map_size)
+ __field(u16, bpid)
+ __string(name, netdev->name)
+ ),
+
+ /* The function that assigns values to the above declared
+ * fields
+ */
+ TP_fast_assign(
+ __entry->vaddr = vaddr;
+ __entry->size = size;
+ __entry->dma_addr = dma_addr;
+ __entry->map_size = map_size;
+ __entry->bpid = bpid;
+ __assign_str(name, netdev->name);
+ ),
+
+ /* This is what gets printed when the trace event is
+ * triggered.
+ */
+ TP_printk(TR_BUF_FMT,
+ __get_str(name),
+ __entry->vaddr,
+ __entry->size,
+ &__entry->dma_addr,
+ __entry->map_size,
+ __entry->bpid)
+);
+
+/* If only one event of a certain type needs to be declared, use TRACE_EVENT().
+ * The syntax is the same as for DECLARE_EVENT_CLASS().
+ */
+
+#endif /* _DPAA2_ETH_TRACE_H */
+
+/* This must be outside ifdef _DPAA2_ETH_TRACE_H */
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE dpaa2-eth-trace
+#include <trace/define_trace.h>
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c
@@ -0,0 +1,3734 @@
+/* Copyright 2014-2016 Freescale Semiconductor Inc.
+ * Copyright 2016-2017 NXP
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/etherdevice.h>
+#include <linux/of_net.h>
+#include <linux/interrupt.h>
+#include <linux/msi.h>
+#include <linux/kthread.h>
+#include <linux/iommu.h>
+#include <linux/net_tstamp.h>
+#include <linux/bpf.h>
+#include <linux/filter.h>
+#include <linux/atomic.h>
+#include <net/sock.h>
+#include <linux/fsl/mc.h>
+#include "dpaa2-eth.h"
+#include "dpaa2-eth-ceetm.h"
+
+/* CREATE_TRACE_POINTS only needs to be defined once. Other dpa files
+ * using trace events only need to #include <trace/events/sched.h>
+ */
+#define CREATE_TRACE_POINTS
+#include "dpaa2-eth-trace.h"
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("Freescale Semiconductor, Inc");
+MODULE_DESCRIPTION("Freescale DPAA2 Ethernet Driver");
+
+const char dpaa2_eth_drv_version[] = "0.1";
+
+static void *dpaa2_iova_to_virt(struct iommu_domain *domain,
+ dma_addr_t iova_addr)
+{
+ phys_addr_t phys_addr;
+
+ phys_addr = domain ? iommu_iova_to_phys(domain, iova_addr) : iova_addr;
+
+ return phys_to_virt(phys_addr);
+}
+
+static void validate_rx_csum(struct dpaa2_eth_priv *priv,
+ u32 fd_status,
+ struct sk_buff *skb)
+{
+ skb_checksum_none_assert(skb);
+
+ /* HW checksum validation is disabled, nothing to do here */
+ if (!(priv->net_dev->features & NETIF_F_RXCSUM))
+ return;
+
+ /* Read checksum validation bits */
+ if (!((fd_status & DPAA2_FAS_L3CV) &&
+ (fd_status & DPAA2_FAS_L4CV)))
+ return;
+
+ /* Inform the stack there's no need to compute L3/L4 csum anymore */
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+}
+
+/* Free a received FD.
+ * Not to be used for Tx conf FDs or on any other paths.
+ */
+static void free_rx_fd(struct dpaa2_eth_priv *priv,
+ const struct dpaa2_fd *fd,
+ void *vaddr)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ dma_addr_t addr = dpaa2_fd_get_addr(fd);
+ u8 fd_format = dpaa2_fd_get_format(fd);
+ struct dpaa2_sg_entry *sgt;
+ void *sg_vaddr;
+ int i;
+
+ /* If single buffer frame, just free the data buffer */
+ if (fd_format == dpaa2_fd_single)
+ goto free_buf;
+ else if (fd_format != dpaa2_fd_sg)
+ /* We don't support any other format */
+ return;
+
+ /* For S/G frames, we first need to free all SG entries
+ * except the first one, which was taken care of already
+ */
+ sgt = vaddr + dpaa2_fd_get_offset(fd);
+ for (i = 1; i < DPAA2_ETH_MAX_SG_ENTRIES; i++) {
+ addr = dpaa2_sg_get_addr(&sgt[i]);
+ sg_vaddr = dpaa2_iova_to_virt(priv->iommu_domain, addr);
+ dma_unmap_single(dev, addr, DPAA2_ETH_RX_BUF_SIZE,
+ DMA_BIDIRECTIONAL);
+
+ skb_free_frag(sg_vaddr);
+ if (dpaa2_sg_is_final(&sgt[i]))
+ break;
+ }
+
+free_buf:
+ skb_free_frag(vaddr);
+}
+
+/* Build a linear skb based on a single-buffer frame descriptor */
+static struct sk_buff *build_linear_skb(struct dpaa2_eth_priv *priv,
+ struct dpaa2_eth_channel *ch,
+ const struct dpaa2_fd *fd,
+ void *fd_vaddr)
+{
+ struct sk_buff *skb = NULL;
+ u16 fd_offset = dpaa2_fd_get_offset(fd);
+ u32 fd_length = dpaa2_fd_get_len(fd);
+
+ ch->buf_count--;
+
+ skb = build_skb(fd_vaddr, DPAA2_ETH_SKB_SIZE);
+ if (unlikely(!skb))
+ return NULL;
+
+ skb_reserve(skb, fd_offset);
+ skb_put(skb, fd_length);
+
+ return skb;
+}
+
+/* Build a non linear (fragmented) skb based on a S/G table */
+static struct sk_buff *build_frag_skb(struct dpaa2_eth_priv *priv,
+ struct dpaa2_eth_channel *ch,
+ struct dpaa2_sg_entry *sgt)
+{
+ struct sk_buff *skb = NULL;
+ struct device *dev = priv->net_dev->dev.parent;
+ void *sg_vaddr;
+ dma_addr_t sg_addr;
+ u16 sg_offset;
+ u32 sg_length;
+ struct page *page, *head_page;
+ int page_offset;
+ int i;
+
+ for (i = 0; i < DPAA2_ETH_MAX_SG_ENTRIES; i++) {
+ struct dpaa2_sg_entry *sge = &sgt[i];
+
+ /* NOTE: We only support SG entries in dpaa2_sg_single format,
+ * but this is the only format we may receive from HW anyway
+ */
+
+ /* Get the address and length from the S/G entry */
+ sg_addr = dpaa2_sg_get_addr(sge);
+ sg_vaddr = dpaa2_iova_to_virt(priv->iommu_domain, sg_addr);
+ dma_unmap_single(dev, sg_addr, DPAA2_ETH_RX_BUF_SIZE,
+ DMA_BIDIRECTIONAL);
+
+ sg_length = dpaa2_sg_get_len(sge);
+
+ if (i == 0) {
+ /* We build the skb around the first data buffer */
+ skb = build_skb(sg_vaddr, DPAA2_ETH_SKB_SIZE);
+ if (unlikely(!skb)) {
+ /* Free the first SG entry now, since we already
+ * unmapped it and obtained the virtual address
+ */
+ skb_free_frag(sg_vaddr);
+
+ /* We still need to subtract the buffers used
+ * by this FD from our software counter
+ */
+ while (!dpaa2_sg_is_final(&sgt[i]) &&
+ i < DPAA2_ETH_MAX_SG_ENTRIES)
+ i++;
+ break;
+ }
+
+ sg_offset = dpaa2_sg_get_offset(sge);
+ skb_reserve(skb, sg_offset);
+ skb_put(skb, sg_length);
+ } else {
+ /* Rest of the data buffers are stored as skb frags */
+ page = virt_to_page(sg_vaddr);
+ head_page = virt_to_head_page(sg_vaddr);
+
+ /* Offset in page (which may be compound).
+ * Data in subsequent SG entries is stored from the
+ * beginning of the buffer, so we don't need to add the
+ * sg_offset.
+ */
+ page_offset = ((unsigned long)sg_vaddr &
+ (PAGE_SIZE - 1)) +
+ (page_address(page) - page_address(head_page));
+
+ skb_add_rx_frag(skb, i - 1, head_page, page_offset,
+ sg_length, DPAA2_ETH_RX_BUF_SIZE);
+ }
+
+ if (dpaa2_sg_is_final(sge))
+ break;
+ }
+
+ WARN_ONCE(i == DPAA2_ETH_MAX_SG_ENTRIES, "Final bit not set in SGT");
+
+ /* Count all data buffers + SG table buffer */
+ ch->buf_count -= i + 2;
+
+ return skb;
+}
+
+static int dpaa2_eth_xdp_tx(struct dpaa2_eth_priv *priv,
+ struct dpaa2_fd *fd,
+ void *buf_start,
+ u16 queue_id)
+{
+ struct dpaa2_eth_fq *fq;
+ struct rtnl_link_stats64 *percpu_stats;
+ struct dpaa2_eth_drv_stats *percpu_extras;
+ struct dpaa2_faead *faead;
+ u32 ctrl, frc;
+ int i, err;
+
+ /* Mark the egress frame annotation area as valid */
+ frc = dpaa2_fd_get_frc(fd);
+ dpaa2_fd_set_frc(fd, frc | DPAA2_FD_FRC_FAEADV);
+ dpaa2_fd_set_ctrl(fd, DPAA2_FD_CTRL_ASAL);
+
+ ctrl = DPAA2_FAEAD_A4V | DPAA2_FAEAD_A2V | DPAA2_FAEAD_EBDDV;
+ faead = dpaa2_get_faead(buf_start, false);
+ faead->ctrl = cpu_to_le32(ctrl);
+ faead->conf_fqid = 0;
+
+ percpu_stats = this_cpu_ptr(priv->percpu_stats);
+ percpu_extras = this_cpu_ptr(priv->percpu_extras);
+
+ fq = &priv->fq[queue_id];
+ for (i = 0; i < DPAA2_ETH_ENQUEUE_RETRIES; i++) {
+ err = dpaa2_io_service_enqueue_qd(fq->channel->dpio,
+ priv->tx_qdid, 0,
+ fq->tx_qdbin, fd);
+ if (err != -EBUSY)
+ break;
+ }
+
+ percpu_extras->tx_portal_busy += i;
+ if (unlikely(err)) {
+ percpu_stats->tx_errors++;
+ } else {
+ percpu_stats->tx_packets++;
+ percpu_stats->tx_bytes += dpaa2_fd_get_len(fd);
+ }
+
+ return err;
+}
+
+static void free_bufs(struct dpaa2_eth_priv *priv, u64 *buf_array, int count)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ void *vaddr;
+ int i;
+
+ for (i = 0; i < count; i++) {
+ /* Same logic as on regular Rx path */
+ vaddr = dpaa2_iova_to_virt(priv->iommu_domain, buf_array[i]);
+ dma_unmap_single(dev, buf_array[i], DPAA2_ETH_RX_BUF_SIZE,
+ DMA_BIDIRECTIONAL);
+ skb_free_frag(vaddr);
+ }
+}
+
+static void release_fd_buf(struct dpaa2_eth_priv *priv,
+ struct dpaa2_eth_channel *ch,
+ dma_addr_t addr)
+{
+ int err;
+
+ ch->rel_buf_array[ch->rel_buf_cnt++] = addr;
+ if (likely(ch->rel_buf_cnt < DPAA2_ETH_BUFS_PER_CMD))
+ return;
+
+ while ((err = dpaa2_io_service_release(ch->dpio, priv->bpid,
+ ch->rel_buf_array,
+ ch->rel_buf_cnt)) == -EBUSY)
+ cpu_relax();
+
+ if (err)
+ free_bufs(priv, ch->rel_buf_array, ch->rel_buf_cnt);
+
+ ch->rel_buf_cnt = 0;
+}
+
+/* Main Rx frame processing routine */
+static void dpaa2_eth_rx(struct dpaa2_eth_priv *priv,
+ struct dpaa2_eth_channel *ch,
+ const struct dpaa2_fd *fd,
+ struct napi_struct *napi,
+ u16 queue_id)
+{
+ dma_addr_t addr = dpaa2_fd_get_addr(fd);
+ u8 fd_format = dpaa2_fd_get_format(fd);
+ void *vaddr;
+ struct sk_buff *skb;
+ struct rtnl_link_stats64 *percpu_stats;
+ struct dpaa2_eth_drv_stats *percpu_extras;
+ struct device *dev = priv->net_dev->dev.parent;
+ struct dpaa2_fas *fas;
+ void *buf_data;
+ u32 status = 0;
+ struct bpf_prog *xdp_prog;
+ struct xdp_buff xdp;
+ u32 xdp_act;
+
+ /* Tracing point */
+ trace_dpaa2_rx_fd(priv->net_dev, fd);
+
+ vaddr = dpaa2_iova_to_virt(priv->iommu_domain, addr);
+ dma_sync_single_for_cpu(dev, addr, DPAA2_ETH_RX_BUF_SIZE,
+ DMA_BIDIRECTIONAL);
+
+ fas = dpaa2_get_fas(vaddr, false);
+ prefetch(fas);
+ buf_data = vaddr + dpaa2_fd_get_offset(fd);
+ prefetch(buf_data);
+
+ percpu_stats = this_cpu_ptr(priv->percpu_stats);
+ percpu_extras = this_cpu_ptr(priv->percpu_extras);
+
+ xdp_prog = READ_ONCE(ch->xdp_prog);
+
+ if (fd_format == dpaa2_fd_single) {
+ if (xdp_prog) {
+ xdp.data = buf_data;
+ xdp.data_end = buf_data + dpaa2_fd_get_len(fd);
+ /* for now, we don't support changes in header size */
+ xdp.data_hard_start = buf_data;
+
+ /* update stats here, as we won't reach the code
+ * that does that for standard frames
+ */
+ percpu_stats->rx_packets++;
+ percpu_stats->rx_bytes += dpaa2_fd_get_len(fd);
+
+ xdp_act = bpf_prog_run_xdp(xdp_prog, &xdp);
+ switch (xdp_act) {
+ case XDP_PASS:
+ break;
+ default:
+ bpf_warn_invalid_xdp_action(xdp_act);
+ case XDP_ABORTED:
+ case XDP_DROP:
+ release_fd_buf(priv, ch, addr);
+ goto drop_cnt;
+ case XDP_TX:
+ if (dpaa2_eth_xdp_tx(priv, (struct dpaa2_fd *)fd, vaddr,
+ queue_id)) {
+ dma_unmap_single(dev, addr,
+ DPAA2_ETH_RX_BUF_SIZE,
+ DMA_BIDIRECTIONAL);
+ free_rx_fd(priv, fd, vaddr);
+ ch->buf_count--;
+ }
+ return;
+ }
+ }
+ dma_unmap_single(dev, addr, DPAA2_ETH_RX_BUF_SIZE,
+ DMA_BIDIRECTIONAL);
+ skb = build_linear_skb(priv, ch, fd, vaddr);
+ } else if (fd_format == dpaa2_fd_sg) {
+ dma_unmap_single(dev, addr, DPAA2_ETH_RX_BUF_SIZE,
+ DMA_BIDIRECTIONAL);
+ skb = build_frag_skb(priv, ch, buf_data);
+ skb_free_frag(vaddr);
+ percpu_extras->rx_sg_frames++;
+ percpu_extras->rx_sg_bytes += dpaa2_fd_get_len(fd);
+ } else {
+ /* We don't support any other format */
+ goto drop_cnt;
+ }
+
+ if (unlikely(!skb))
+ goto drop_fd;
+
+ prefetch(skb->data);
+
+ /* Get the timestamp value */
+ if (priv->ts_rx_en) {
+ struct skb_shared_hwtstamps *shhwtstamps = skb_hwtstamps(skb);
+ u64 *ns = dpaa2_get_ts(vaddr, false);
+
+ *ns = DPAA2_PTP_NOMINAL_FREQ_PERIOD_NS * le64_to_cpup(ns);
+ memset(shhwtstamps, 0, sizeof(*shhwtstamps));
+ shhwtstamps->hwtstamp = ns_to_ktime(*ns);
+ }
+
+ /* Check if we need to validate the L4 csum */
+ if (likely(dpaa2_fd_get_frc(fd) & DPAA2_FD_FRC_FASV)) {
+ status = le32_to_cpu(fas->status);
+ validate_rx_csum(priv, status, skb);
+ }
+
+ skb->protocol = eth_type_trans(skb, priv->net_dev);
+
+ /* Record Rx queue - this will be used when picking a Tx queue to
+ * forward the frames. We're keeping flow affinity through the
+ * network stack.
+ */
+ skb_record_rx_queue(skb, queue_id);
+
+ percpu_stats->rx_packets++;
+ percpu_stats->rx_bytes += dpaa2_fd_get_len(fd);
+
+ napi_gro_receive(napi, skb);
+
+ return;
+
+drop_fd:
+ free_rx_fd(priv, fd, vaddr);
+drop_cnt:
+ percpu_stats->rx_dropped++;
+}
+
+#ifdef CONFIG_FSL_DPAA2_ETH_USE_ERR_QUEUE
+/* Processing of Rx frames received on the error FQ
+ * We check and print the error bits and then free the frame
+ */
+static void dpaa2_eth_rx_err(struct dpaa2_eth_priv *priv,
+ struct dpaa2_eth_channel *ch,
+ const struct dpaa2_fd *fd,
+ struct napi_struct *napi __always_unused,
+ u16 queue_id __always_unused)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ dma_addr_t addr = dpaa2_fd_get_addr(fd);
+ void *vaddr;
+ struct rtnl_link_stats64 *percpu_stats;
+ struct dpaa2_fas *fas;
+ u32 status = 0;
+ u32 fd_errors;
+ bool has_fas_errors = false;
+
+ vaddr = dpaa2_iova_to_virt(priv->iommu_domain, addr);
+ dma_unmap_single(dev, addr, DPAA2_ETH_RX_BUF_SIZE, DMA_BIDIRECTIONAL);
+
+ /* check frame errors in the FD field */
+ fd_errors = dpaa2_fd_get_ctrl(fd) & DPAA2_FD_RX_ERR_MASK;
+ if (likely(fd_errors)) {
+ has_fas_errors = (fd_errors & FD_CTRL_FAERR) &&
+ !!(dpaa2_fd_get_frc(fd) & DPAA2_FD_FRC_FASV);
+ if (net_ratelimit())
+ netdev_dbg(priv->net_dev, "RX frame FD err: %08x\n",
+ fd_errors);
+ }
+
+ /* check frame errors in the FAS field */
+ if (has_fas_errors) {
+ fas = dpaa2_get_fas(vaddr, false);
+ status = le32_to_cpu(fas->status);
+ if (net_ratelimit())
+ netdev_dbg(priv->net_dev, "Rx frame FAS err: 0x%08x\n",
+ status & DPAA2_FAS_RX_ERR_MASK);
+ }
+ free_rx_fd(priv, fd, vaddr);
+
+ percpu_stats = this_cpu_ptr(priv->percpu_stats);
+ percpu_stats->rx_errors++;
+ ch->buf_count--;
+}
+#endif
+
+/* Consume all frames pull-dequeued into the store. This is the simplest way to
+ * make sure we don't accidentally issue another volatile dequeue which would
+ * overwrite (leak) frames already in the store.
+ *
+ * The number of frames is returned using the last 2 output arguments,
+ * separately for Rx and Tx confirmations.
+ *
+ * Observance of NAPI budget is not our concern, leaving that to the caller.
+ */
+static bool consume_frames(struct dpaa2_eth_channel *ch, int *rx_cleaned,
+ int *tx_conf_cleaned)
+{
+ struct dpaa2_eth_priv *priv = ch->priv;
+ struct dpaa2_eth_fq *fq = NULL;
+ struct dpaa2_dq *dq;
+ const struct dpaa2_fd *fd;
+ int cleaned = 0;
+ int is_last;
+
+ do {
+ dq = dpaa2_io_store_next(ch->store, &is_last);
+ if (unlikely(!dq)) {
+ /* If we're here, we *must* have placed a
+ * volatile dequeue comnmand, so keep reading through
+ * the store until we get some sort of valid response
+ * token (either a valid frame or an "empty dequeue")
+ */
+ continue;
+ }
+
+ fd = dpaa2_dq_fd(dq);
+ prefetch(fd);
+
+ fq = (struct dpaa2_eth_fq *)(uintptr_t)dpaa2_dq_fqd_ctx(dq);
+ fq->consume(priv, ch, fd, &ch->napi, fq->flowid);
+ cleaned++;
+ } while (!is_last);
+
+ if (!cleaned)
+ return false;
+
+ /* All frames brought in store by a volatile dequeue
+ * come from the same queue
+ */
+ if (fq->type == DPAA2_TX_CONF_FQ)
+ *tx_conf_cleaned += cleaned;
+ else
+ *rx_cleaned += cleaned;
+
+ fq->stats.frames += cleaned;
+ ch->stats.frames += cleaned;
+
+ return true;
+}
+
+/* Configure the egress frame annotation for timestamp update */
+static void enable_tx_tstamp(struct dpaa2_fd *fd, void *buf_start)
+{
+ struct dpaa2_faead *faead;
+ u32 ctrl, frc;
+
+ /* Mark the egress frame annotation area as valid */
+ frc = dpaa2_fd_get_frc(fd);
+ dpaa2_fd_set_frc(fd, frc | DPAA2_FD_FRC_FAEADV);
+
+ /* Set hardware annotation size */
+ ctrl = dpaa2_fd_get_ctrl(fd);
+ dpaa2_fd_set_ctrl(fd, ctrl | DPAA2_FD_CTRL_ASAL);
+
+ /* enable UPD (update prepanded data) bit in FAEAD field of
+ * hardware frame annotation area
+ */
+ ctrl = DPAA2_FAEAD_A2V | DPAA2_FAEAD_UPDV | DPAA2_FAEAD_UPD;
+ faead = dpaa2_get_faead(buf_start, true);
+ faead->ctrl = cpu_to_le32(ctrl);
+}
+
+/* Create a frame descriptor based on a fragmented skb */
+static int build_sg_fd(struct dpaa2_eth_priv *priv,
+ struct sk_buff *skb,
+ struct dpaa2_fd *fd)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ void *sgt_buf = NULL;
+ dma_addr_t addr;
+ int nr_frags = skb_shinfo(skb)->nr_frags;
+ struct dpaa2_sg_entry *sgt;
+ int i, err;
+ int sgt_buf_size;
+ struct scatterlist *scl, *crt_scl;
+ int num_sg;
+ int num_dma_bufs;
+ struct dpaa2_eth_swa *swa;
+
+ /* Create and map scatterlist.
+ * We don't advertise NETIF_F_FRAGLIST, so skb_to_sgvec() will not have
+ * to go beyond nr_frags+1.
+ * Note: We don't support chained scatterlists
+ */
+ if (unlikely(PAGE_SIZE / sizeof(struct scatterlist) < nr_frags + 1))
+ return -EINVAL;
+
+ scl = kcalloc(nr_frags + 1, sizeof(struct scatterlist), GFP_ATOMIC);
+ if (unlikely(!scl))
+ return -ENOMEM;
+
+ sg_init_table(scl, nr_frags + 1);
+ num_sg = skb_to_sgvec(skb, scl, 0, skb->len);
+ num_dma_bufs = dma_map_sg(dev, scl, num_sg, DMA_BIDIRECTIONAL);
+ if (unlikely(!num_dma_bufs)) {
+ err = -ENOMEM;
+ goto dma_map_sg_failed;
+ }
+
+ /* Prepare the HW SGT structure */
+ sgt_buf_size = priv->tx_data_offset +
+ sizeof(struct dpaa2_sg_entry) * num_dma_bufs;
+ sgt_buf = netdev_alloc_frag(sgt_buf_size + DPAA2_ETH_TX_BUF_ALIGN);
+ if (unlikely(!sgt_buf)) {
+ err = -ENOMEM;
+ goto sgt_buf_alloc_failed;
+ }
+ sgt_buf = PTR_ALIGN(sgt_buf, DPAA2_ETH_TX_BUF_ALIGN);
+ memset(sgt_buf, 0, sgt_buf_size);
+
+ sgt = (struct dpaa2_sg_entry *)(sgt_buf + priv->tx_data_offset);
+
+ /* Fill in the HW SGT structure.
+ *
+ * sgt_buf is zeroed out, so the following fields are implicit
+ * in all sgt entries:
+ * - offset is 0
+ * - format is 'dpaa2_sg_single'
+ */
+ for_each_sg(scl, crt_scl, num_dma_bufs, i) {
+ dpaa2_sg_set_addr(&sgt[i], sg_dma_address(crt_scl));
+ dpaa2_sg_set_len(&sgt[i], sg_dma_len(crt_scl));
+ }
+ dpaa2_sg_set_final(&sgt[i - 1], true);
+
+ /* Store the skb backpointer in the SGT buffer.
+ * Fit the scatterlist and the number of buffers alongside the
+ * skb backpointer in the software annotation area. We'll need
+ * all of them on Tx Conf.
+ */
+ swa = (struct dpaa2_eth_swa *)sgt_buf;
+ swa->type = DPAA2_ETH_SWA_SG;
+ swa->sg.skb = skb;
+ swa->sg.scl = scl;
+ swa->sg.num_sg = num_sg;
+ swa->sg.sgt_size = sgt_buf_size;
+
+ /* Separately map the SGT buffer */
+ addr = dma_map_single(dev, sgt_buf, sgt_buf_size, DMA_BIDIRECTIONAL);
+ if (unlikely(dma_mapping_error(dev, addr))) {
+ err = -ENOMEM;
+ goto dma_map_single_failed;
+ }
+ dpaa2_fd_set_offset(fd, priv->tx_data_offset);
+ dpaa2_fd_set_format(fd, dpaa2_fd_sg);
+ dpaa2_fd_set_addr(fd, addr);
+ dpaa2_fd_set_len(fd, skb->len);
+ dpaa2_fd_set_ctrl(fd, FD_CTRL_PTA);
+
+ if (priv->ts_tx_en && skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)
+ enable_tx_tstamp(fd, sgt_buf);
+
+ return 0;
+
+dma_map_single_failed:
+ skb_free_frag(sgt_buf);
+sgt_buf_alloc_failed:
+ dma_unmap_sg(dev, scl, num_sg, DMA_BIDIRECTIONAL);
+dma_map_sg_failed:
+ kfree(scl);
+ return err;
+}
+
+/* Create a frame descriptor based on a linear skb */
+static int build_single_fd(struct dpaa2_eth_priv *priv,
+ struct sk_buff *skb,
+ struct dpaa2_fd *fd)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ u8 *buffer_start, *aligned_start;
+ struct dpaa2_eth_swa *swa;
+ dma_addr_t addr;
+
+ buffer_start = skb->data - dpaa2_eth_needed_headroom(priv, skb);
+
+ /* If there's enough room to align the FD address, do it.
+ * It will help hardware optimize accesses.
+ */
+ aligned_start = PTR_ALIGN(buffer_start - DPAA2_ETH_TX_BUF_ALIGN,
+ DPAA2_ETH_TX_BUF_ALIGN);
+ if (aligned_start >= skb->head)
+ buffer_start = aligned_start;
+
+ /* Store a backpointer to the skb at the beginning of the buffer
+ * (in the private data area) such that we can release it
+ * on Tx confirm
+ */
+ swa = (struct dpaa2_eth_swa *)buffer_start;
+ swa->type = DPAA2_ETH_SWA_SINGLE;
+ swa->single.skb = skb;
+
+ addr = dma_map_single(dev, buffer_start,
+ skb_tail_pointer(skb) - buffer_start,
+ DMA_BIDIRECTIONAL);
+ if (unlikely(dma_mapping_error(dev, addr)))
+ return -ENOMEM;
+
+ dpaa2_fd_set_addr(fd, addr);
+ dpaa2_fd_set_offset(fd, (u16)(skb->data - buffer_start));
+ dpaa2_fd_set_len(fd, skb->len);
+ dpaa2_fd_set_format(fd, dpaa2_fd_single);
+ dpaa2_fd_set_ctrl(fd, FD_CTRL_PTA);
+
+ if (priv->ts_tx_en && skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)
+ enable_tx_tstamp(fd, buffer_start);
+
+ return 0;
+}
+
+/* FD freeing routine on the Tx path
+ *
+ * DMA-unmap and free FD and possibly SGT buffer allocated on Tx. The skb
+ * back-pointed to is also freed.
+ * This can be called either from dpaa2_eth_tx_conf() or on the error path of
+ * dpaa2_eth_tx().
+ * Optionally, return the frame annotation status word (FAS), which needs
+ * to be checked if we're on the confirmation path.
+ */
+static void free_tx_fd(struct dpaa2_eth_priv *priv,
+ const struct dpaa2_fd *fd,
+ bool in_napi)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ dma_addr_t fd_addr;
+ struct sk_buff *skb = NULL;
+ unsigned char *buffer_start;
+ struct dpaa2_eth_swa *swa;
+ u8 fd_format = dpaa2_fd_get_format(fd);
+
+ fd_addr = dpaa2_fd_get_addr(fd);
+ buffer_start = dpaa2_iova_to_virt(priv->iommu_domain, fd_addr);
+ swa = (struct dpaa2_eth_swa *)buffer_start;
+
+ if (fd_format == dpaa2_fd_single) {
+ skb = swa->single.skb;
+ /* Accessing the skb buffer is safe before dma unmap, because
+ * we didn't map the actual skb shell.
+ */
+ dma_unmap_single(dev, fd_addr,
+ skb_tail_pointer(skb) - buffer_start,
+ DMA_BIDIRECTIONAL);
+ } else if (fd_format == dpaa2_fd_sg) {
+ skb = swa->sg.skb;
+
+ /* Unmap the scatterlist */
+ dma_unmap_sg(dev, swa->sg.scl, swa->sg.num_sg, DMA_BIDIRECTIONAL);
+ kfree(swa->sg.scl);
+
+ /* Unmap the SGT buffer */
+ dma_unmap_single(dev, fd_addr, swa->sg.sgt_size,
+ DMA_BIDIRECTIONAL);
+ } else {
+ netdev_dbg(priv->net_dev, "Invalid FD format\n");
+ return;
+ }
+
+ /* Get the timestamp value */
+ if (priv->ts_tx_en && skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) {
+ struct skb_shared_hwtstamps shhwtstamps;
+ u64 *ns;
+
+ memset(&shhwtstamps, 0, sizeof(shhwtstamps));
+
+ ns = dpaa2_get_ts(buffer_start, true);
+ *ns = DPAA2_PTP_NOMINAL_FREQ_PERIOD_NS * le64_to_cpup(ns);
+ shhwtstamps.hwtstamp = ns_to_ktime(*ns);
+ skb_tstamp_tx(skb, &shhwtstamps);
+ }
+
+ /* Free SGT buffer allocated on tx */
+ if (fd_format != dpaa2_fd_single)
+ skb_free_frag(buffer_start);
+
+ /* Move on with skb release */
+ napi_consume_skb(skb, in_napi);
+}
+
+static netdev_tx_t dpaa2_eth_tx(struct sk_buff *skb, struct net_device *net_dev)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ struct device *dev = net_dev->dev.parent;
+ struct dpaa2_fd fd;
+ struct rtnl_link_stats64 *percpu_stats;
+ struct dpaa2_eth_drv_stats *percpu_extras;
+ unsigned int needed_headroom;
+ struct dpaa2_eth_fq *fq;
+ u16 queue_mapping;
+ int err, i, ch_id = 0, qpri = 0;
+
+ queue_mapping = skb_get_queue_mapping(skb);
+ fq = &priv->fq[queue_mapping];
+
+ /* If we're congested, stop this tx queue; transmission of
+ * the current skb happens regardless of congestion state
+ */
+ dma_sync_single_for_cpu(dev, priv->cscn_dma,
+ DPAA2_CSCN_SIZE, DMA_FROM_DEVICE);
+ if (unlikely(dpaa2_cscn_state_congested(priv->cscn_mem))) {
+ netif_stop_subqueue(net_dev, queue_mapping);
+ fq->stats.congestion_entry++;
+ }
+
+ percpu_stats = this_cpu_ptr(priv->percpu_stats);
+ percpu_extras = this_cpu_ptr(priv->percpu_extras);
+
+ /* For non-linear skb we don't need a minimum headroom */
+ needed_headroom = dpaa2_eth_needed_headroom(priv, skb);
+ if (skb_headroom(skb) < needed_headroom) {
+ struct sk_buff *ns;
+
+ ns = skb_realloc_headroom(skb, needed_headroom);
+ if (unlikely(!ns)) {
+ percpu_stats->tx_dropped++;
+ goto err_alloc_headroom;
+ }
+ percpu_extras->tx_reallocs++;
+ if (skb->sk)
+ skb_set_owner_w(ns, skb->sk);
+ dev_kfree_skb(skb);
+ skb = ns;
+ }
+
+ /* We'll be holding a back-reference to the skb until Tx Confirmation;
+ * we don't want that overwritten by a concurrent Tx with a cloned skb.
+ */
+ skb = skb_unshare(skb, GFP_ATOMIC);
+ if (unlikely(!skb)) {
+ /* skb_unshare() has already freed the skb */
+ percpu_stats->tx_dropped++;
+ return NETDEV_TX_OK;
+ }
+
+ /* Setup the FD fields */
+ memset(&fd, 0, sizeof(fd));
+
+ if (skb_is_nonlinear(skb)) {
+ err = build_sg_fd(priv, skb, &fd);
+ percpu_extras->tx_sg_frames++;
+ percpu_extras->tx_sg_bytes += skb->len;
+ } else {
+ err = build_single_fd(priv, skb, &fd);
+ }
+
+ if (unlikely(err)) {
+ percpu_stats->tx_dropped++;
+ goto err_build_fd;
+ }
+
+ /* Tracing point */
+ trace_dpaa2_tx_fd(net_dev, &fd);
+
+ if (dpaa2_eth_ceetm_is_enabled(priv)) {
+ err = dpaa2_ceetm_classify(skb, net_dev->qdisc, &ch_id, &qpri);
+ if (err)
+ goto err_ceetm_classify;
+ }
+
+ for (i = 0; i < DPAA2_ETH_ENQUEUE_RETRIES; i++) {
+ err = dpaa2_io_service_enqueue_qd(fq->channel->dpio,
+ priv->tx_qdid, qpri,
+ fq->tx_qdbin, &fd);
+ if (err != -EBUSY)
+ break;
+ }
+ percpu_extras->tx_portal_busy += i;
+ if (unlikely(err < 0)) {
+ percpu_stats->tx_errors++;
+ /* Clean up everything, including freeing the skb */
+ free_tx_fd(priv, &fd, false);
+ } else {
+ percpu_stats->tx_packets++;
+ percpu_stats->tx_bytes += dpaa2_fd_get_len(&fd);
+ }
+
+ return NETDEV_TX_OK;
+
+err_ceetm_classify:
+ free_tx_fd(priv, &fd, false);
+err_build_fd:
+err_alloc_headroom:
+ dev_kfree_skb(skb);
+
+ return NETDEV_TX_OK;
+}
+
+/* Tx confirmation frame processing routine */
+static void dpaa2_eth_tx_conf(struct dpaa2_eth_priv *priv,
+ struct dpaa2_eth_channel *ch,
+ const struct dpaa2_fd *fd,
+ struct napi_struct *napi __always_unused,
+ u16 queue_id)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ struct rtnl_link_stats64 *percpu_stats;
+ struct dpaa2_eth_drv_stats *percpu_extras;
+ u32 fd_errors;
+
+ /* Tracing point */
+ trace_dpaa2_tx_conf_fd(priv->net_dev, fd);
+
+ percpu_extras = this_cpu_ptr(priv->percpu_extras);
+ percpu_extras->tx_conf_frames++;
+ percpu_extras->tx_conf_bytes += dpaa2_fd_get_len(fd);
+
+ /* Check congestion state and wake all queues if necessary */
+ if (unlikely(__netif_subqueue_stopped(priv->net_dev, queue_id))) {
+ dma_sync_single_for_cpu(dev, priv->cscn_dma,
+ DPAA2_CSCN_SIZE, DMA_FROM_DEVICE);
+ if (!dpaa2_cscn_state_congested(priv->cscn_mem))
+ netif_tx_wake_all_queues(priv->net_dev);
+ }
+
+ /* Check frame errors in the FD field */
+ fd_errors = dpaa2_fd_get_ctrl(fd) & DPAA2_FD_TX_ERR_MASK;
+ free_tx_fd(priv, fd, true);
+
+ if (likely(!fd_errors))
+ return;
+
+ if (net_ratelimit())
+ netdev_dbg(priv->net_dev, "TX frame FD error: 0x%08x\n",
+ fd_errors);
+
+ percpu_stats = this_cpu_ptr(priv->percpu_stats);
+ /* Tx-conf logically pertains to the egress path. */
+ percpu_stats->tx_errors++;
+}
+
+static int set_rx_csum(struct dpaa2_eth_priv *priv, bool enable)
+{
+ int err;
+
+ err = dpni_set_offload(priv->mc_io, 0, priv->mc_token,
+ DPNI_OFF_RX_L3_CSUM, enable);
+ if (err) {
+ netdev_err(priv->net_dev,
+ "dpni_set_offload(RX_L3_CSUM) failed\n");
+ return err;
+ }
+
+ err = dpni_set_offload(priv->mc_io, 0, priv->mc_token,
+ DPNI_OFF_RX_L4_CSUM, enable);
+ if (err) {
+ netdev_err(priv->net_dev,
+ "dpni_set_offload(RX_L4_CSUM) failed\n");
+ return err;
+ }
+
+ return 0;
+}
+
+static int set_tx_csum(struct dpaa2_eth_priv *priv, bool enable)
+{
+ int err;
+
+ err = dpni_set_offload(priv->mc_io, 0, priv->mc_token,
+ DPNI_OFF_TX_L3_CSUM, enable);
+ if (err) {
+ netdev_err(priv->net_dev, "dpni_set_offload(TX_L3_CSUM) failed\n");
+ return err;
+ }
+
+ err = dpni_set_offload(priv->mc_io, 0, priv->mc_token,
+ DPNI_OFF_TX_L4_CSUM, enable);
+ if (err) {
+ netdev_err(priv->net_dev, "dpni_set_offload(TX_L4_CSUM) failed\n");
+ return err;
+ }
+
+ return 0;
+}
+
+/* Perform a single release command to add buffers
+ * to the specified buffer pool
+ */
+static int add_bufs(struct dpaa2_eth_priv *priv,
+ struct dpaa2_eth_channel *ch, u16 bpid)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ u64 buf_array[DPAA2_ETH_BUFS_PER_CMD];
+ void *buf;
+ dma_addr_t addr;
+ int i, err;
+
+ for (i = 0; i < DPAA2_ETH_BUFS_PER_CMD; i++) {
+ /* Allocate buffer visible to WRIOP + skb shared info +
+ * alignment padding
+ */
+ buf = napi_alloc_frag(dpaa2_eth_buf_raw_size(priv));
+ if (unlikely(!buf))
+ goto err_alloc;
+
+ buf = PTR_ALIGN(buf, priv->rx_buf_align);
+
+ addr = dma_map_single(dev, buf, DPAA2_ETH_RX_BUF_SIZE,
+ DMA_BIDIRECTIONAL);
+ if (unlikely(dma_mapping_error(dev, addr)))
+ goto err_map;
+
+ buf_array[i] = addr;
+
+ /* tracing point */
+ trace_dpaa2_eth_buf_seed(priv->net_dev,
+ buf, dpaa2_eth_buf_raw_size(priv),
+ addr, DPAA2_ETH_RX_BUF_SIZE,
+ bpid);
+ }
+
+release_bufs:
+ /* In case the portal is busy, retry until successful */
+ while ((err = dpaa2_io_service_release(ch->dpio, bpid,
+ buf_array, i)) == -EBUSY)
+ cpu_relax();
+
+ /* If release command failed, clean up and bail out; not much
+ * else we can do about it
+ */
+ if (err) {
+ free_bufs(priv, buf_array, i);
+ return 0;
+ }
+
+ return i;
+
+err_map:
+ skb_free_frag(buf);
+err_alloc:
+ /* If we managed to allocate at least some buffers, release them */
+ if (i)
+ goto release_bufs;
+
+ return 0;
+}
+
+static int seed_pool(struct dpaa2_eth_priv *priv, u16 bpid)
+{
+ int i, j;
+ int new_count;
+
+ /* This is the lazy seeding of Rx buffer pools.
+ * dpaa2_add_bufs() is also used on the Rx hotpath and calls
+ * napi_alloc_frag(). The trouble with that is that it in turn ends up
+ * calling this_cpu_ptr(), which mandates execution in atomic context.
+ * Rather than splitting up the code, do a one-off preempt disable.
+ */
+ preempt_disable();
+ for (j = 0; j < priv->num_channels; j++) {
+ priv->channel[j]->buf_count = 0;
+ for (i = 0; i < priv->max_bufs_per_ch;
+ i += DPAA2_ETH_BUFS_PER_CMD) {
+ new_count = add_bufs(priv, priv->channel[j], bpid);
+ priv->channel[j]->buf_count += new_count;
+
+ if (new_count < DPAA2_ETH_BUFS_PER_CMD) {
+ preempt_enable();
+ return -ENOMEM;
+ }
+ }
+ }
+ preempt_enable();
+
+ return 0;
+}
+
+/**
+ * Drain the specified number of buffers from the DPNI's private buffer pool.
+ * @count must not exceeed DPAA2_ETH_BUFS_PER_CMD
+ */
+static void drain_bufs(struct dpaa2_eth_priv *priv, int count)
+{
+ u64 buf_array[DPAA2_ETH_BUFS_PER_CMD];
+ int ret;
+
+ do {
+ ret = dpaa2_io_service_acquire(NULL, priv->bpid,
+ buf_array, count);
+ if (ret < 0) {
+ netdev_err(priv->net_dev, "dpaa2_io_service_acquire() failed\n");
+ return;
+ }
+ free_bufs(priv, buf_array, ret);
+ } while (ret);
+}
+
+static void drain_pool(struct dpaa2_eth_priv *priv)
+{
+ preempt_disable();
+ drain_bufs(priv, DPAA2_ETH_BUFS_PER_CMD);
+ drain_bufs(priv, 1);
+ preempt_enable();
+}
+
+/* Function is called from softirq context only, so we don't need to guard
+ * the access to percpu count
+ */
+static int refill_pool(struct dpaa2_eth_priv *priv,
+ struct dpaa2_eth_channel *ch,
+ u16 bpid)
+{
+ int new_count;
+
+ if (likely(ch->buf_count >= priv->refill_thresh))
+ return 0;
+
+ do {
+ new_count = add_bufs(priv, ch, bpid);
+ if (unlikely(!new_count)) {
+ /* Out of memory; abort for now, we'll try later on */
+ break;
+ }
+ ch->buf_count += new_count;
+ } while (ch->buf_count < priv->max_bufs_per_ch);
+
+ if (unlikely(ch->buf_count < priv->max_bufs_per_ch))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int pull_channel(struct dpaa2_eth_channel *ch)
+{
+ int err;
+ int dequeues = -1;
+
+ /* Retry while portal is busy */
+ do {
+ err = dpaa2_io_service_pull_channel(ch->dpio, ch->ch_id,
+ ch->store);
+ dequeues++;
+ cpu_relax();
+ } while (err == -EBUSY);
+
+ ch->stats.dequeue_portal_busy += dequeues;
+ if (unlikely(err))
+ ch->stats.pull_err++;
+
+ return err;
+}
+
+/* NAPI poll routine
+ *
+ * Frames are dequeued from the QMan channel associated with this NAPI context.
+ * Rx and (if configured) Rx error frames count towards the NAPI budget. Tx
+ * confirmation frames are limited by a threshold per NAPI poll cycle.
+ */
+static int dpaa2_eth_poll(struct napi_struct *napi, int budget)
+{
+ struct dpaa2_eth_channel *ch;
+ int rx_cleaned = 0, tx_conf_cleaned = 0;
+ bool store_cleaned;
+ struct dpaa2_eth_priv *priv;
+ int err;
+
+ ch = container_of(napi, struct dpaa2_eth_channel, napi);
+ priv = ch->priv;
+
+ do {
+ err = pull_channel(ch);
+ if (unlikely(err))
+ break;
+
+ /* Refill pool if appropriate */
+ refill_pool(priv, ch, priv->bpid);
+
+ store_cleaned = consume_frames(ch, &rx_cleaned,
+ &tx_conf_cleaned);
+
+ /* If we've either consumed the budget with Rx frames,
+ * or reached the Tx conf threshold, we're done.
+ */
+ if (rx_cleaned >= budget ||
+ tx_conf_cleaned >= TX_CONF_PER_NAPI_POLL)
+ return budget;
+ } while (store_cleaned);
+
+ /* We didn't consume the entire budget, finish napi and
+ * re-enable data availability notifications
+ */
+ napi_complete(napi);
+ do {
+ err = dpaa2_io_service_rearm(ch->dpio, &ch->nctx);
+ cpu_relax();
+ } while (err == -EBUSY);
+ WARN_ONCE(err, "CDAN notifications rearm failed on core %d",
+ ch->nctx.desired_cpu);
+
+ return max(rx_cleaned, 1);
+}
+
+static void enable_ch_napi(struct dpaa2_eth_priv *priv)
+{
+ struct dpaa2_eth_channel *ch;
+ int i;
+
+ for (i = 0; i < priv->num_channels; i++) {
+ ch = priv->channel[i];
+ napi_enable(&ch->napi);
+ }
+}
+
+static void disable_ch_napi(struct dpaa2_eth_priv *priv)
+{
+ struct dpaa2_eth_channel *ch;
+ int i;
+
+ for (i = 0; i < priv->num_channels; i++) {
+ ch = priv->channel[i];
+ napi_disable(&ch->napi);
+ }
+}
+
+static int link_state_update(struct dpaa2_eth_priv *priv)
+{
+ struct dpni_link_state state;
+ int err;
+
+ err = dpni_get_link_state(priv->mc_io, 0, priv->mc_token, &state);
+ if (unlikely(err)) {
+ netdev_err(priv->net_dev,
+ "dpni_get_link_state() failed\n");
+ return err;
+ }
+
+ /* Chech link state; speed / duplex changes are not treated yet */
+ if (priv->link_state.up == state.up)
+ return 0;
+
+ priv->link_state = state;
+ if (state.up) {
+ netif_carrier_on(priv->net_dev);
+ netif_tx_start_all_queues(priv->net_dev);
+ } else {
+ netif_tx_stop_all_queues(priv->net_dev);
+ netif_carrier_off(priv->net_dev);
+ }
+
+ netdev_info(priv->net_dev, "Link Event: state %s\n",
+ state.up ? "up" : "down");
+
+ return 0;
+}
+
+static int dpaa2_eth_open(struct net_device *net_dev)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ int err;
+
+ /* We'll only start the txqs when the link is actually ready; make sure
+ * we don't race against the link up notification, which may come
+ * immediately after dpni_enable();
+ */
+ netif_tx_stop_all_queues(net_dev);
+
+ /* Also, explicitly set carrier off, otherwise netif_carrier_ok() will
+ * return true and cause 'ip link show' to report the LOWER_UP flag,
+ * even though the link notification wasn't even received.
+ */
+ netif_carrier_off(net_dev);
+
+ err = seed_pool(priv, priv->bpid);
+ if (err) {
+ /* Not much to do; the buffer pool, though not filled up,
+ * may still contain some buffers which would enable us
+ * to limp on.
+ */
+ netdev_err(net_dev, "Buffer seeding failed for DPBP %d (bpid=%d)\n",
+ priv->dpbp_dev->obj_desc.id, priv->bpid);
+ }
+
+ priv->refill_thresh = DPAA2_ETH_REFILL_THRESH(priv);
+
+ err = dpni_enable(priv->mc_io, 0, priv->mc_token);
+ if (err < 0) {
+ netdev_err(net_dev, "dpni_enable() failed\n");
+ goto enable_err;
+ }
+
+ /* If the DPMAC object has already processed the link up interrupt,
+ * we have to learn the link state ourselves.
+ */
+ err = link_state_update(priv);
+ if (err < 0) {
+ netdev_err(net_dev, "Can't update link state\n");
+ goto link_state_err;
+ }
+
+ return 0;
+
+link_state_err:
+enable_err:
+ priv->refill_thresh = 0;
+ drain_pool(priv);
+ return err;
+}
+
+static int dpaa2_eth_stop(struct net_device *net_dev)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ int dpni_enabled;
+ int retries = 10, i;
+ int err = 0;
+
+ netif_tx_stop_all_queues(net_dev);
+ netif_carrier_off(net_dev);
+
+ /* Loop while dpni_disable() attempts to drain the egress FQs
+ * and confirm them back to us.
+ */
+ do {
+ dpni_disable(priv->mc_io, 0, priv->mc_token);
+ dpni_is_enabled(priv->mc_io, 0, priv->mc_token, &dpni_enabled);
+ if (dpni_enabled)
+ /* Allow the hardware some slack */
+ msleep(100);
+ } while (dpni_enabled && --retries);
+ if (!retries) {
+ netdev_warn(net_dev, "Retry count exceeded disabling DPNI\n");
+ /* Must go on and finish processing pending frames, so we don't
+ * crash at the next "ifconfig up"
+ */
+ err = -ETIMEDOUT;
+ }
+
+ priv->refill_thresh = 0;
+
+ /* Wait for all running napi poll routines to finish, so that no
+ * new refill operations are started
+ */
+ for (i = 0; i < priv->num_channels; i++)
+ napi_synchronize(&priv->channel[i]->napi);
+
+ /* Empty the buffer pool */
+ drain_pool(priv);
+
+ return err;
+}
+
+static int dpaa2_eth_init(struct net_device *net_dev)
+{
+ u64 supported = 0;
+ u64 not_supported = 0;
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ u32 options = priv->dpni_attrs.options;
+
+ /* Capabilities listing */
+ supported |= IFF_LIVE_ADDR_CHANGE;
+
+ if (options & DPNI_OPT_NO_MAC_FILTER)
+ not_supported |= IFF_UNICAST_FLT;
+ else
+ supported |= IFF_UNICAST_FLT;
+
+ net_dev->priv_flags |= supported;
+ net_dev->priv_flags &= ~not_supported;
+
+ /* Features */
+ net_dev->features = NETIF_F_RXCSUM |
+ NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
+ NETIF_F_SG | NETIF_F_HIGHDMA |
+ NETIF_F_LLTX;
+ net_dev->hw_features = net_dev->features;
+
+ return 0;
+}
+
+static int dpaa2_eth_set_addr(struct net_device *net_dev, void *addr)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ struct device *dev = net_dev->dev.parent;
+ int err;
+
+ err = eth_mac_addr(net_dev, addr);
+ if (err < 0) {
+ dev_err(dev, "eth_mac_addr() failed (%d)\n", err);
+ return err;
+ }
+
+ err = dpni_set_primary_mac_addr(priv->mc_io, 0, priv->mc_token,
+ net_dev->dev_addr);
+ if (err) {
+ dev_err(dev, "dpni_set_primary_mac_addr() failed (%d)\n", err);
+ return err;
+ }
+
+ return 0;
+}
+
+/** Fill in counters maintained by the GPP driver. These may be different from
+ * the hardware counters obtained by ethtool.
+ */
+static struct rtnl_link_stats64 *dpaa2_eth_get_stats(struct net_device *net_dev,
+ struct rtnl_link_stats64 *stats)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ struct rtnl_link_stats64 *percpu_stats;
+ u64 *cpustats;
+ u64 *netstats = (u64 *)stats;
+ int i, j;
+ int num = sizeof(struct rtnl_link_stats64) / sizeof(u64);
+
+ for_each_possible_cpu(i) {
+ percpu_stats = per_cpu_ptr(priv->percpu_stats, i);
+ cpustats = (u64 *)percpu_stats;
+ for (j = 0; j < num; j++)
+ netstats[j] += cpustats[j];
+ }
+ return stats;
+}
+
+/* Copy mac unicast addresses from @net_dev to @priv.
+ * Its sole purpose is to make dpaa2_eth_set_rx_mode() more readable.
+ */
+static void add_uc_hw_addr(const struct net_device *net_dev,
+ struct dpaa2_eth_priv *priv)
+{
+ struct netdev_hw_addr *ha;
+ int err;
+
+ netdev_for_each_uc_addr(ha, net_dev) {
+ err = dpni_add_mac_addr(priv->mc_io, 0, priv->mc_token,
+ ha->addr);
+ if (err)
+ netdev_warn(priv->net_dev,
+ "Could not add ucast MAC %pM to the filtering table (err %d)\n",
+ ha->addr, err);
+ }
+}
+
+/* Copy mac multicast addresses from @net_dev to @priv
+ * Its sole purpose is to make dpaa2_eth_set_rx_mode() more readable.
+ */
+static void add_mc_hw_addr(const struct net_device *net_dev,
+ struct dpaa2_eth_priv *priv)
+{
+ struct netdev_hw_addr *ha;
+ int err;
+
+ netdev_for_each_mc_addr(ha, net_dev) {
+ err = dpni_add_mac_addr(priv->mc_io, 0, priv->mc_token,
+ ha->addr);
+ if (err)
+ netdev_warn(priv->net_dev,
+ "Could not add mcast MAC %pM to the filtering table (err %d)\n",
+ ha->addr, err);
+ }
+}
+
+static void dpaa2_eth_set_rx_mode(struct net_device *net_dev)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ int uc_count = netdev_uc_count(net_dev);
+ int mc_count = netdev_mc_count(net_dev);
+ u8 max_mac = priv->dpni_attrs.mac_filter_entries;
+ u32 options = priv->dpni_attrs.options;
+ u16 mc_token = priv->mc_token;
+ struct fsl_mc_io *mc_io = priv->mc_io;
+ int err;
+
+ /* Basic sanity checks; these probably indicate a misconfiguration */
+ if (options & DPNI_OPT_NO_MAC_FILTER && max_mac != 0)
+ netdev_info(net_dev,
+ "mac_filter_entries=%d, DPNI_OPT_NO_MAC_FILTER option must be disabled\n",
+ max_mac);
+
+ /* Force promiscuous if the uc or mc counts exceed our capabilities. */
+ if (uc_count > max_mac) {
+ netdev_info(net_dev,
+ "Unicast addr count reached %d, max allowed is %d; forcing promisc\n",
+ uc_count, max_mac);
+ goto force_promisc;
+ }
+ if (mc_count + uc_count > max_mac) {
+ netdev_info(net_dev,
+ "Unicast + multicast addr count reached %d, max allowed is %d; forcing promisc\n",
+ uc_count + mc_count, max_mac);
+ goto force_mc_promisc;
+ }
+
+ /* Adjust promisc settings due to flag combinations */
+ if (net_dev->flags & IFF_PROMISC)
+ goto force_promisc;
+ if (net_dev->flags & IFF_ALLMULTI) {
+ /* First, rebuild unicast filtering table. This should be done
+ * in promisc mode, in order to avoid frame loss while we
+ * progressively add entries to the table.
+ * We don't know whether we had been in promisc already, and
+ * making an MC call to find out is expensive; so set uc promisc
+ * nonetheless.
+ */
+ err = dpni_set_unicast_promisc(mc_io, 0, mc_token, 1);
+ if (err)
+ netdev_warn(net_dev, "Can't set uc promisc\n");
+
+ /* Actual uc table reconstruction. */
+ err = dpni_clear_mac_filters(mc_io, 0, mc_token, 1, 0);
+ if (err)
+ netdev_warn(net_dev, "Can't clear uc filters\n");
+ add_uc_hw_addr(net_dev, priv);
+
+ /* Finally, clear uc promisc and set mc promisc as requested. */
+ err = dpni_set_unicast_promisc(mc_io, 0, mc_token, 0);
+ if (err)
+ netdev_warn(net_dev, "Can't clear uc promisc\n");
+ goto force_mc_promisc;
+ }
+
+ /* Neither unicast, nor multicast promisc will be on... eventually.
+ * For now, rebuild mac filtering tables while forcing both of them on.
+ */
+ err = dpni_set_unicast_promisc(mc_io, 0, mc_token, 1);
+ if (err)
+ netdev_warn(net_dev, "Can't set uc promisc (%d)\n", err);
+ err = dpni_set_multicast_promisc(mc_io, 0, mc_token, 1);
+ if (err)
+ netdev_warn(net_dev, "Can't set mc promisc (%d)\n", err);
+
+ /* Actual mac filtering tables reconstruction */
+ err = dpni_clear_mac_filters(mc_io, 0, mc_token, 1, 1);
+ if (err)
+ netdev_warn(net_dev, "Can't clear mac filters\n");
+ add_mc_hw_addr(net_dev, priv);
+ add_uc_hw_addr(net_dev, priv);
+
+ /* Now we can clear both ucast and mcast promisc, without risking
+ * to drop legitimate frames anymore.
+ */
+ err = dpni_set_unicast_promisc(mc_io, 0, mc_token, 0);
+ if (err)
+ netdev_warn(net_dev, "Can't clear ucast promisc\n");
+ err = dpni_set_multicast_promisc(mc_io, 0, mc_token, 0);
+ if (err)
+ netdev_warn(net_dev, "Can't clear mcast promisc\n");
+
+ return;
+
+force_promisc:
+ err = dpni_set_unicast_promisc(mc_io, 0, mc_token, 1);
+ if (err)
+ netdev_warn(net_dev, "Can't set ucast promisc\n");
+force_mc_promisc:
+ err = dpni_set_multicast_promisc(mc_io, 0, mc_token, 1);
+ if (err)
+ netdev_warn(net_dev, "Can't set mcast promisc\n");
+}
+
+static int dpaa2_eth_set_features(struct net_device *net_dev,
+ netdev_features_t features)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ netdev_features_t changed = features ^ net_dev->features;
+ bool enable;
+ int err;
+
+ if (changed & NETIF_F_RXCSUM) {
+ enable = !!(features & NETIF_F_RXCSUM);
+ err = set_rx_csum(priv, enable);
+ if (err)
+ return err;
+ }
+
+ if (changed & (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM)) {
+ enable = !!(features & (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM));
+ err = set_tx_csum(priv, enable);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
+static int dpaa2_eth_ts_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(dev);
+ struct hwtstamp_config config;
+
+ if (copy_from_user(&config, rq->ifr_data, sizeof(config)))
+ return -EFAULT;
+
+ switch (config.tx_type) {
+ case HWTSTAMP_TX_OFF:
+ priv->ts_tx_en = false;
+ break;
+ case HWTSTAMP_TX_ON:
+ priv->ts_tx_en = true;
+ break;
+ default:
+ return -ERANGE;
+ }
+
+ if (config.rx_filter == HWTSTAMP_FILTER_NONE) {
+ priv->ts_rx_en = false;
+ } else {
+ priv->ts_rx_en = true;
+ /* TS is set for all frame types, not only those requested */
+ config.rx_filter = HWTSTAMP_FILTER_ALL;
+ }
+
+ return copy_to_user(rq->ifr_data, &config, sizeof(config)) ?
+ -EFAULT : 0;
+}
+
+static int dpaa2_eth_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+ if (cmd == SIOCSHWTSTAMP)
+ return dpaa2_eth_ts_ioctl(dev, rq, cmd);
+
+ return -EINVAL;
+}
+
+static int set_buffer_layout(struct dpaa2_eth_priv *priv)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ struct dpni_buffer_layout buf_layout = {0};
+ int err;
+
+ /* We need to check for WRIOP version 1.0.0, but depending on the MC
+ * version, this number is not always provided correctly on rev1.
+ * We need to check for both alternatives in this situation.
+ */
+ if (priv->dpni_attrs.wriop_version == DPAA2_WRIOP_VERSION(0, 0, 0) ||
+ priv->dpni_attrs.wriop_version == DPAA2_WRIOP_VERSION(1, 0, 0))
+ priv->rx_buf_align = DPAA2_ETH_RX_BUF_ALIGN_REV1;
+ else
+ priv->rx_buf_align = DPAA2_ETH_RX_BUF_ALIGN;
+
+ /* tx buffer */
+ buf_layout.pass_timestamp = true;
+ buf_layout.private_data_size = DPAA2_ETH_SWA_SIZE;
+ buf_layout.options = DPNI_BUF_LAYOUT_OPT_TIMESTAMP |
+ DPNI_BUF_LAYOUT_OPT_PRIVATE_DATA_SIZE;
+ err = dpni_set_buffer_layout(priv->mc_io, 0, priv->mc_token,
+ DPNI_QUEUE_TX, &buf_layout);
+ if (err) {
+ dev_err(dev, "dpni_set_buffer_layout(TX) failed\n");
+ return err;
+ }
+
+ /* tx-confirm buffer */
+ buf_layout.options = DPNI_BUF_LAYOUT_OPT_TIMESTAMP;
+ err = dpni_set_buffer_layout(priv->mc_io, 0, priv->mc_token,
+ DPNI_QUEUE_TX_CONFIRM, &buf_layout);
+ if (err) {
+ dev_err(dev, "dpni_set_buffer_layout(TX_CONF) failed\n");
+ return err;
+ }
+
+ /* Now that we've set our tx buffer layout, retrieve the minimum
+ * required tx data offset.
+ */
+ err = dpni_get_tx_data_offset(priv->mc_io, 0, priv->mc_token,
+ &priv->tx_data_offset);
+ if (err) {
+ dev_err(dev, "dpni_get_tx_data_offset() failed\n");
+ return err;
+ }
+
+ if ((priv->tx_data_offset % 64) != 0)
+ dev_warn(dev, "Tx data offset (%d) not a multiple of 64B\n",
+ priv->tx_data_offset);
+
+ /* rx buffer */
+ buf_layout.pass_frame_status = true;
+ buf_layout.pass_parser_result = true;
+ buf_layout.data_align = priv->rx_buf_align;
+ buf_layout.private_data_size = 0;
+ buf_layout.data_head_room = dpaa2_eth_rx_headroom(priv);
+ buf_layout.options = DPNI_BUF_LAYOUT_OPT_PARSER_RESULT |
+ DPNI_BUF_LAYOUT_OPT_FRAME_STATUS |
+ DPNI_BUF_LAYOUT_OPT_DATA_ALIGN |
+ DPNI_BUF_LAYOUT_OPT_DATA_HEAD_ROOM |
+ DPNI_BUF_LAYOUT_OPT_TIMESTAMP;
+ err = dpni_set_buffer_layout(priv->mc_io, 0, priv->mc_token,
+ DPNI_QUEUE_RX, &buf_layout);
+ if (err) {
+ dev_err(dev, "dpni_set_buffer_layout(RX) failed\n");
+ return err;
+ }
+
+ return 0;
+}
+
+static int dpaa2_eth_set_xdp(struct net_device *net_dev, struct bpf_prog *prog)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ struct dpaa2_eth_channel *ch;
+ struct bpf_prog *old_prog;
+ int i, err;
+
+ /* No support for SG frames */
+ if (DPAA2_ETH_L2_MAX_FRM(net_dev->mtu) > DPAA2_ETH_RX_BUF_SIZE)
+ return -EINVAL;
+
+ if (netif_running(net_dev)) {
+ err = dpaa2_eth_stop(net_dev);
+ if (err)
+ return err;
+ }
+
+ if (prog) {
+ prog = bpf_prog_add(prog, priv->num_channels - 1);
+ if (IS_ERR(prog))
+ return PTR_ERR(prog);
+ }
+
+ priv->has_xdp_prog = !!prog;
+
+ for (i = 0; i < priv->num_channels; i++) {
+ ch = priv->channel[i];
+ old_prog = xchg(&ch->xdp_prog, prog);
+ if (old_prog)
+ bpf_prog_put(old_prog);
+ }
+
+ if (netif_running(net_dev)) {
+ err = dpaa2_eth_open(net_dev);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
+static int dpaa2_eth_xdp(struct net_device *dev, struct netdev_xdp *xdp)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(dev);
+
+ switch (xdp->command) {
+ case XDP_SETUP_PROG:
+ return dpaa2_eth_set_xdp(dev, xdp->prog);
+ case XDP_QUERY_PROG:
+ xdp->prog_attached = priv->has_xdp_prog;
+ return 0;
+ default:
+ return -EINVAL;
+ }
+}
+
+static const struct net_device_ops dpaa2_eth_ops = {
+ .ndo_open = dpaa2_eth_open,
+ .ndo_start_xmit = dpaa2_eth_tx,
+ .ndo_stop = dpaa2_eth_stop,
+ .ndo_init = dpaa2_eth_init,
+ .ndo_set_mac_address = dpaa2_eth_set_addr,
+ .ndo_get_stats64 = dpaa2_eth_get_stats,
+ .ndo_set_rx_mode = dpaa2_eth_set_rx_mode,
+ .ndo_set_features = dpaa2_eth_set_features,
+ .ndo_do_ioctl = dpaa2_eth_ioctl,
+ .ndo_xdp = dpaa2_eth_xdp,
+};
+
+static void cdan_cb(struct dpaa2_io_notification_ctx *ctx)
+{
+ struct dpaa2_eth_channel *ch;
+
+ ch = container_of(ctx, struct dpaa2_eth_channel, nctx);
+
+ /* Update NAPI statistics */
+ ch->stats.cdan++;
+
+ napi_schedule_irqoff(&ch->napi);
+}
+
+/* Allocate and configure a DPCON object */
+static struct fsl_mc_device *setup_dpcon(struct dpaa2_eth_priv *priv)
+{
+ struct fsl_mc_device *dpcon;
+ struct device *dev = priv->net_dev->dev.parent;
+ struct dpcon_attr attrs;
+ int err;
+
+ err = fsl_mc_object_allocate(to_fsl_mc_device(dev),
+ FSL_MC_POOL_DPCON, &dpcon);
+ if (err) {
+ dev_info(dev, "Not enough DPCONs, will go on as-is\n");
+ return NULL;
+ }
+
+ err = dpcon_open(priv->mc_io, 0, dpcon->obj_desc.id, &dpcon->mc_handle);
+ if (err) {
+ dev_err(dev, "dpcon_open() failed\n");
+ goto free;
+ }
+
+ err = dpcon_reset(priv->mc_io, 0, dpcon->mc_handle);
+ if (err) {
+ dev_err(dev, "dpcon_reset() failed\n");
+ goto close;
+ }
+
+ err = dpcon_get_attributes(priv->mc_io, 0, dpcon->mc_handle, &attrs);
+ if (err) {
+ dev_err(dev, "dpcon_get_attributes() failed\n");
+ goto close;
+ }
+
+ err = dpcon_enable(priv->mc_io, 0, dpcon->mc_handle);
+ if (err) {
+ dev_err(dev, "dpcon_enable() failed\n");
+ goto close;
+ }
+
+ return dpcon;
+
+close:
+ dpcon_close(priv->mc_io, 0, dpcon->mc_handle);
+free:
+ fsl_mc_object_free(dpcon);
+
+ return NULL;
+}
+
+static void free_dpcon(struct dpaa2_eth_priv *priv,
+ struct fsl_mc_device *dpcon)
+{
+ dpcon_disable(priv->mc_io, 0, dpcon->mc_handle);
+ dpcon_close(priv->mc_io, 0, dpcon->mc_handle);
+ fsl_mc_object_free(dpcon);
+}
+
+static struct dpaa2_eth_channel *
+alloc_channel(struct dpaa2_eth_priv *priv)
+{
+ struct dpaa2_eth_channel *channel;
+ struct dpcon_attr attr;
+ struct device *dev = priv->net_dev->dev.parent;
+ int err;
+
+ channel = kzalloc(sizeof(*channel), GFP_KERNEL);
+ if (!channel)
+ return NULL;
+
+ channel->dpcon = setup_dpcon(priv);
+ if (!channel->dpcon)
+ goto err_setup;
+
+ err = dpcon_get_attributes(priv->mc_io, 0, channel->dpcon->mc_handle,
+ &attr);
+ if (err) {
+ dev_err(dev, "dpcon_get_attributes() failed\n");
+ goto err_get_attr;
+ }
+
+ channel->dpcon_id = attr.id;
+ channel->ch_id = attr.qbman_ch_id;
+ channel->priv = priv;
+
+ return channel;
+
+err_get_attr:
+ free_dpcon(priv, channel->dpcon);
+err_setup:
+ kfree(channel);
+ return NULL;
+}
+
+static void free_channel(struct dpaa2_eth_priv *priv,
+ struct dpaa2_eth_channel *channel)
+{
+ struct bpf_prog *prog;
+
+ free_dpcon(priv, channel->dpcon);
+
+ prog = READ_ONCE(channel->xdp_prog);
+ if (prog)
+ bpf_prog_put(prog);
+
+ kfree(channel);
+}
+
+/* DPIO setup: allocate and configure QBMan channels, setup core affinity
+ * and register data availability notifications
+ */
+static int setup_dpio(struct dpaa2_eth_priv *priv)
+{
+ struct dpaa2_io_notification_ctx *nctx;
+ struct dpaa2_eth_channel *channel;
+ struct dpcon_notification_cfg dpcon_notif_cfg;
+ struct device *dev = priv->net_dev->dev.parent;
+ int i, err;
+
+ /* We want the ability to spread ingress traffic (RX, TX conf) to as
+ * many cores as possible, so we need one channel for each core
+ * (unless there's fewer queues than cores, in which case the extra
+ * channels would be wasted).
+ * Allocate one channel per core and register it to the core's
+ * affine DPIO. If not enough channels are available for all cores
+ * or if some cores don't have an affine DPIO, there will be no
+ * ingress frame processing on those cores.
+ */
+ cpumask_clear(&priv->dpio_cpumask);
+ for_each_online_cpu(i) {
+ /* Try to allocate a channel */
+ channel = alloc_channel(priv);
+ if (!channel) {
+ dev_info(dev,
+ "No affine channel for cpu %d and above\n", i);
+ err = -ENODEV;
+ goto err_alloc_ch;
+ }
+
+ priv->channel[priv->num_channels] = channel;
+
+ nctx = &channel->nctx;
+ nctx->is_cdan = 1;
+ nctx->cb = cdan_cb;
+ nctx->id = channel->ch_id;
+ nctx->desired_cpu = i;
+
+ /* Register the new context */
+ channel->dpio = dpaa2_io_service_select(i);
+ err = dpaa2_io_service_register(channel->dpio, nctx);
+ if (err) {
+ dev_dbg(dev, "No affine DPIO for cpu %d\n", i);
+ /* If no affine DPIO for this core, there's probably
+ * none available for next cores either. Signal we want
+ * to retry later, in case the DPIO devices weren't
+ * probed yet.
+ */
+ err = -EPROBE_DEFER;
+ goto err_service_reg;
+ }
+
+ /* Register DPCON notification with MC */
+ dpcon_notif_cfg.dpio_id = nctx->dpio_id;
+ dpcon_notif_cfg.priority = 0;
+ dpcon_notif_cfg.user_ctx = nctx->qman64;
+ err = dpcon_set_notification(priv->mc_io, 0,
+ channel->dpcon->mc_handle,
+ &dpcon_notif_cfg);
+ if (err) {
+ dev_err(dev, "dpcon_set_notification failed()\n");
+ goto err_set_cdan;
+ }
+
+ /* If we managed to allocate a channel and also found an affine
+ * DPIO for this core, add it to the final mask
+ */
+ cpumask_set_cpu(i, &priv->dpio_cpumask);
+ priv->num_channels++;
+
+ /* Stop if we already have enough channels to accommodate all
+ * RX and TX conf queues
+ */
+ if (priv->num_channels == dpaa2_eth_queue_count(priv))
+ break;
+ }
+
+ return 0;
+
+err_set_cdan:
+ dpaa2_io_service_deregister(channel->dpio, nctx);
+err_service_reg:
+ free_channel(priv, channel);
+err_alloc_ch:
+ if (cpumask_empty(&priv->dpio_cpumask)) {
+ dev_err(dev, "No cpu with an affine DPIO/DPCON\n");
+ return err;
+ }
+
+ dev_info(dev, "Cores %*pbl available for processing ingress traffic\n",
+ cpumask_pr_args(&priv->dpio_cpumask));
+
+ return 0;
+}
+
+static void free_dpio(struct dpaa2_eth_priv *priv)
+{
+ int i;
+ struct dpaa2_eth_channel *ch;
+
+ /* deregister CDAN notifications and free channels */
+ for (i = 0; i < priv->num_channels; i++) {
+ ch = priv->channel[i];
+ dpaa2_io_service_deregister(ch->dpio, &ch->nctx);
+ free_channel(priv, ch);
+ }
+}
+
+static struct dpaa2_eth_channel *get_affine_channel(struct dpaa2_eth_priv *priv,
+ int cpu)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ int i;
+
+ for (i = 0; i < priv->num_channels; i++)
+ if (priv->channel[i]->nctx.desired_cpu == cpu)
+ return priv->channel[i];
+
+ /* We should never get here. Issue a warning and return
+ * the first channel, because it's still better than nothing
+ */
+ dev_warn(dev, "No affine channel found for cpu %d\n", cpu);
+
+ return priv->channel[0];
+}
+
+static void set_fq_affinity(struct dpaa2_eth_priv *priv)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ struct cpumask xps_mask;
+ struct dpaa2_eth_fq *fq;
+ int rx_cpu, txc_cpu;
+ int i, err;
+
+ /* For each FQ, pick one channel/CPU to deliver frames to.
+ * This may well change at runtime, either through irqbalance or
+ * through direct user intervention.
+ */
+ rx_cpu = txc_cpu = cpumask_first(&priv->dpio_cpumask);
+
+ for (i = 0; i < priv->num_fqs; i++) {
+ fq = &priv->fq[i];
+ switch (fq->type) {
+ case DPAA2_RX_FQ:
+ case DPAA2_RX_ERR_FQ:
+ fq->target_cpu = rx_cpu;
+ rx_cpu = cpumask_next(rx_cpu, &priv->dpio_cpumask);
+ if (rx_cpu >= nr_cpu_ids)
+ rx_cpu = cpumask_first(&priv->dpio_cpumask);
+ break;
+ case DPAA2_TX_CONF_FQ:
+ fq->target_cpu = txc_cpu;
+
+ /* Tell the stack to affine to txc_cpu the Tx queue
+ * associated with the confirmation one
+ */
+ cpumask_clear(&xps_mask);
+ cpumask_set_cpu(txc_cpu, &xps_mask);
+ err = netif_set_xps_queue(priv->net_dev, &xps_mask,
+ fq->flowid);
+ if (err)
+ dev_info_once(dev, "Error setting XPS queue\n");
+
+ txc_cpu = cpumask_next(txc_cpu, &priv->dpio_cpumask);
+ if (txc_cpu >= nr_cpu_ids)
+ txc_cpu = cpumask_first(&priv->dpio_cpumask);
+ break;
+ default:
+ dev_err(dev, "Unknown FQ type: %d\n", fq->type);
+ }
+ fq->channel = get_affine_channel(priv, fq->target_cpu);
+ }
+}
+
+static void setup_fqs(struct dpaa2_eth_priv *priv)
+{
+ int i, j;
+
+ /* We have one TxConf FQ per Tx flow.
+ * The number of Tx and Rx queues is the same.
+ * Tx queues come first in the fq array.
+ */
+ for (i = 0; i < dpaa2_eth_queue_count(priv); i++) {
+ priv->fq[priv->num_fqs].type = DPAA2_TX_CONF_FQ;
+ priv->fq[priv->num_fqs].consume = dpaa2_eth_tx_conf;
+ priv->fq[priv->num_fqs++].flowid = (u16)i;
+ }
+
+ for (i = 0; i < dpaa2_eth_tc_count(priv); i++)
+ for (j = 0; j < dpaa2_eth_queue_count(priv); j++) {
+ priv->fq[priv->num_fqs].type = DPAA2_RX_FQ;
+ priv->fq[priv->num_fqs].consume = dpaa2_eth_rx;
+ priv->fq[priv->num_fqs].tc = (u8)i;
+ priv->fq[priv->num_fqs++].flowid = (u16)j;
+ }
+
+#ifdef CONFIG_FSL_DPAA2_ETH_USE_ERR_QUEUE
+ /* We have exactly one Rx error queue per DPNI */
+ priv->fq[priv->num_fqs].type = DPAA2_RX_ERR_FQ;
+ priv->fq[priv->num_fqs++].consume = dpaa2_eth_rx_err;
+#endif
+
+ /* For each FQ, decide on which core to process incoming frames */
+ set_fq_affinity(priv);
+}
+
+/* Allocate and configure one buffer pool for each interface */
+static int setup_dpbp(struct dpaa2_eth_priv *priv)
+{
+ int err;
+ struct fsl_mc_device *dpbp_dev;
+ struct device *dev = priv->net_dev->dev.parent;
+ struct dpbp_attr dpbp_attrs;
+
+ err = fsl_mc_object_allocate(to_fsl_mc_device(dev), FSL_MC_POOL_DPBP,
+ &dpbp_dev);
+ if (err) {
+ dev_err(dev, "DPBP device allocation failed\n");
+ return err;
+ }
+
+ priv->dpbp_dev = dpbp_dev;
+
+ err = dpbp_open(priv->mc_io, 0, priv->dpbp_dev->obj_desc.id,
+ &dpbp_dev->mc_handle);
+ if (err) {
+ dev_err(dev, "dpbp_open() failed\n");
+ goto err_open;
+ }
+
+ err = dpbp_reset(priv->mc_io, 0, dpbp_dev->mc_handle);
+ if (err) {
+ dev_err(dev, "dpbp_reset() failed\n");
+ goto err_reset;
+ }
+
+ err = dpbp_enable(priv->mc_io, 0, dpbp_dev->mc_handle);
+ if (err) {
+ dev_err(dev, "dpbp_enable() failed\n");
+ goto err_enable;
+ }
+
+ err = dpbp_get_attributes(priv->mc_io, 0, dpbp_dev->mc_handle,
+ &dpbp_attrs);
+ if (err) {
+ dev_err(dev, "dpbp_get_attributes() failed\n");
+ goto err_get_attr;
+ }
+ priv->bpid = dpbp_attrs.bpid;
+
+ /* By default we start with flow control enabled */
+ priv->max_bufs_per_ch = DPAA2_ETH_NUM_BUFS_FC / priv->num_channels;
+
+ return 0;
+
+err_get_attr:
+ dpbp_disable(priv->mc_io, 0, dpbp_dev->mc_handle);
+err_enable:
+err_reset:
+ dpbp_close(priv->mc_io, 0, dpbp_dev->mc_handle);
+err_open:
+ fsl_mc_object_free(dpbp_dev);
+
+ return err;
+}
+
+static void free_dpbp(struct dpaa2_eth_priv *priv)
+{
+ drain_pool(priv);
+ dpbp_disable(priv->mc_io, 0, priv->dpbp_dev->mc_handle);
+ dpbp_close(priv->mc_io, 0, priv->dpbp_dev->mc_handle);
+ fsl_mc_object_free(priv->dpbp_dev);
+}
+
+static int setup_tx_congestion(struct dpaa2_eth_priv *priv)
+{
+ struct dpni_congestion_notification_cfg notif_cfg = {0};
+ struct device *dev = priv->net_dev->dev.parent;
+ int err;
+
+ priv->cscn_unaligned = kzalloc(DPAA2_CSCN_SIZE + DPAA2_CSCN_ALIGN,
+ GFP_KERNEL);
+
+ if (!priv->cscn_unaligned)
+ return -ENOMEM;
+
+ priv->cscn_mem = PTR_ALIGN(priv->cscn_unaligned, DPAA2_CSCN_ALIGN);
+ priv->cscn_dma = dma_map_single(dev, priv->cscn_mem, DPAA2_CSCN_SIZE,
+ DMA_FROM_DEVICE);
+ if (dma_mapping_error(dev, priv->cscn_dma)) {
+ dev_err(dev, "Error mapping CSCN memory area\n");
+ err = -ENOMEM;
+ goto err_dma_map;
+ }
+
+ notif_cfg.units = DPNI_CONGESTION_UNIT_BYTES;
+ notif_cfg.threshold_entry = DPAA2_ETH_TX_CONG_ENTRY_THRESH;
+ notif_cfg.threshold_exit = DPAA2_ETH_TX_CONG_EXIT_THRESH;
+ notif_cfg.message_ctx = (u64)priv;
+ notif_cfg.message_iova = priv->cscn_dma;
+ notif_cfg.notification_mode = DPNI_CONG_OPT_WRITE_MEM_ON_ENTER |
+ DPNI_CONG_OPT_WRITE_MEM_ON_EXIT |
+ DPNI_CONG_OPT_COHERENT_WRITE;
+ err = dpni_set_congestion_notification(priv->mc_io, 0, priv->mc_token,
+ DPNI_QUEUE_TX, 0, &notif_cfg);
+ if (err) {
+ dev_err(dev, "dpni_set_congestion_notification failed\n");
+ goto err_set_cong;
+ }
+
+ return 0;
+
+err_set_cong:
+ dma_unmap_single(dev, priv->cscn_dma, DPAA2_CSCN_SIZE, DMA_FROM_DEVICE);
+err_dma_map:
+ kfree(priv->cscn_unaligned);
+
+ return err;
+}
+
+/* Configure the DPNI object this interface is associated with */
+static int setup_dpni(struct fsl_mc_device *ls_dev)
+{
+ struct device *dev = &ls_dev->dev;
+ struct dpaa2_eth_priv *priv;
+ struct net_device *net_dev;
+ struct dpni_link_cfg cfg = {0};
+ int err;
+
+ net_dev = dev_get_drvdata(dev);
+ priv = netdev_priv(net_dev);
+
+ /* get a handle for the DPNI object */
+ err = dpni_open(priv->mc_io, 0, ls_dev->obj_desc.id, &priv->mc_token);
+ if (err) {
+ dev_err(dev, "dpni_open() failed\n");
+ return err;
+ }
+
+ /* Check if we can work with this DPNI object */
+ err = dpni_get_api_version(priv->mc_io, 0, &priv->dpni_ver_major,
+ &priv->dpni_ver_minor);
+ if (err) {
+ dev_err(dev, "dpni_get_api_version() failed\n");
+ goto close;
+ }
+ if (dpaa2_eth_cmp_dpni_ver(priv, DPNI_VER_MAJOR, DPNI_VER_MINOR) < 0) {
+ dev_err(dev, "DPNI version %u.%u not supported, need >= %u.%u\n",
+ priv->dpni_ver_major, priv->dpni_ver_minor,
+ DPNI_VER_MAJOR, DPNI_VER_MINOR);
+ err = -ENOTSUPP;
+ goto close;
+ }
+
+ ls_dev->mc_io = priv->mc_io;
+ ls_dev->mc_handle = priv->mc_token;
+
+ err = dpni_reset(priv->mc_io, 0, priv->mc_token);
+ if (err) {
+ dev_err(dev, "dpni_reset() failed\n");
+ goto close;
+ }
+
+ err = dpni_get_attributes(priv->mc_io, 0, priv->mc_token,
+ &priv->dpni_attrs);
+ if (err) {
+ dev_err(dev, "dpni_get_attributes() failed (err=%d)\n", err);
+ goto close;
+ }
+
+ err = set_buffer_layout(priv);
+ if (err)
+ goto close;
+
+ /* Enable congestion notifications for Tx queues */
+ err = setup_tx_congestion(priv);
+ if (err)
+ goto close;
+
+ /* allocate classification rule space */
+ priv->cls_rule = kzalloc(sizeof(*priv->cls_rule) *
+ dpaa2_eth_fs_count(priv), GFP_KERNEL);
+ if (!priv->cls_rule)
+ goto close;
+
+ /* Enable flow control */
+ cfg.options = DPNI_LINK_OPT_AUTONEG | DPNI_LINK_OPT_PAUSE;
+ priv->tx_pause_frames = true;
+ err = dpni_set_link_cfg(priv->mc_io, 0, priv->mc_token, &cfg);
+ if (err) {
+ dev_err(dev, "dpni_set_link_cfg() failed\n");
+ goto cls_free;
+ }
+
+ return 0;
+
+cls_free:
+ kfree(priv->cls_rule);
+close:
+ dpni_close(priv->mc_io, 0, priv->mc_token);
+
+ return err;
+}
+
+static void free_dpni(struct dpaa2_eth_priv *priv)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ int err;
+
+ err = dpni_reset(priv->mc_io, 0, priv->mc_token);
+ if (err)
+ netdev_warn(priv->net_dev, "dpni_reset() failed (err %d)\n",
+ err);
+
+ dpni_close(priv->mc_io, 0, priv->mc_token);
+
+ kfree(priv->cls_rule);
+
+ dma_unmap_single(dev, priv->cscn_dma, DPAA2_CSCN_SIZE, DMA_FROM_DEVICE);
+ kfree(priv->cscn_unaligned);
+}
+
+static int setup_rx_flow(struct dpaa2_eth_priv *priv,
+ struct dpaa2_eth_fq *fq)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ struct dpni_queue queue;
+ struct dpni_queue_id qid;
+ int err;
+
+ err = dpni_get_queue(priv->mc_io, 0, priv->mc_token,
+ DPNI_QUEUE_RX, fq->tc, fq->flowid, &queue, &qid);
+ if (err) {
+ dev_err(dev, "dpni_get_queue(RX) failed\n");
+ return err;
+ }
+
+ fq->fqid = qid.fqid;
+
+ queue.destination.id = fq->channel->dpcon_id;
+ queue.destination.type = DPNI_DEST_DPCON;
+ queue.destination.priority = 1;
+ queue.user_context = (u64)(uintptr_t)fq;
+ err = dpni_set_queue(priv->mc_io, 0, priv->mc_token,
+ DPNI_QUEUE_RX, fq->tc, fq->flowid,
+ DPNI_QUEUE_OPT_USER_CTX | DPNI_QUEUE_OPT_DEST,
+ &queue);
+ if (err) {
+ dev_err(dev, "dpni_set_queue(RX) failed\n");
+ return err;
+ }
+
+ return 0;
+}
+
+static int set_queue_taildrop(struct dpaa2_eth_priv *priv,
+ struct dpni_taildrop *td)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ int i, err;
+
+ for (i = 0; i < priv->num_fqs; i++) {
+ if (priv->fq[i].type != DPAA2_RX_FQ)
+ continue;
+
+ err = dpni_set_taildrop(priv->mc_io, 0, priv->mc_token,
+ DPNI_CP_QUEUE, DPNI_QUEUE_RX,
+ priv->fq[i].tc, priv->fq[i].flowid,
+ td);
+ if (err) {
+ dev_err(dev, "dpni_set_taildrop() failed (%d)\n", err);
+ return err;
+ }
+
+ dev_dbg(dev, "%s taildrop for Rx group tc %d\n",
+ (td->enable ? "Enabled" : "Disabled"),
+ i);
+ }
+
+ return 0;
+}
+
+static int set_group_taildrop(struct dpaa2_eth_priv *priv,
+ struct dpni_taildrop *td)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ struct dpni_taildrop disable_td, *tc_td;
+ int i, err;
+
+ memset(&disable_td, 0, sizeof(struct dpni_taildrop));
+ for (i = 0; i < dpaa2_eth_tc_count(priv); i++) {
+ if (td->enable && dpaa2_eth_is_pfc_enabled(priv, i))
+ /* Do not set taildrop thresholds for PFC-enabled
+ * traffic classes. We will enable congestion
+ * notifications for them.
+ */
+ tc_td = &disable_td;
+ else
+ tc_td = td;
+
+ err = dpni_set_taildrop(priv->mc_io, 0, priv->mc_token,
+ DPNI_CP_GROUP, DPNI_QUEUE_RX,
+ i, 0, tc_td);
+ if (err) {
+ dev_err(dev, "dpni_set_taildrop() failed (%d)\n", err);
+ return err;
+ }
+
+ dev_dbg(dev, "%s taildrop for Rx queue id %d tc %d\n",
+ (tc_td->enable ? "Enabled" : "Disabled"),
+ priv->fq[i].flowid, priv->fq[i].tc);
+ }
+
+ return 0;
+}
+
+/* Enable/disable Rx FQ taildrop
+ *
+ * Rx FQ taildrop is mutually exclusive with flow control and it only gets
+ * disabled when FC is active. Depending on FC status, we need to compute
+ * the maximum number of buffers in the pool differently, so use the
+ * opportunity to update max number of buffers as well.
+ */
+int set_rx_taildrop(struct dpaa2_eth_priv *priv)
+{
+ enum dpaa2_eth_td_cfg cfg = dpaa2_eth_get_td_type(priv);
+ struct dpni_taildrop td_queue, td_group;
+ int err = 0;
+
+ switch (cfg) {
+ case DPAA2_ETH_TD_NONE:
+ memset(&td_queue, 0, sizeof(struct dpni_taildrop));
+ memset(&td_group, 0, sizeof(struct dpni_taildrop));
+ priv->max_bufs_per_ch = DPAA2_ETH_NUM_BUFS_FC /
+ priv->num_channels;
+ break;
+ case DPAA2_ETH_TD_QUEUE:
+ memset(&td_group, 0, sizeof(struct dpni_taildrop));
+ td_queue.enable = 1;
+ td_queue.units = DPNI_CONGESTION_UNIT_BYTES;
+ td_queue.threshold = DPAA2_ETH_TAILDROP_THRESH /
+ dpaa2_eth_tc_count(priv);
+ priv->max_bufs_per_ch = DPAA2_ETH_NUM_BUFS_PER_CH;
+ break;
+ case DPAA2_ETH_TD_GROUP:
+ memset(&td_queue, 0, sizeof(struct dpni_taildrop));
+ td_group.enable = 1;
+ td_group.units = DPNI_CONGESTION_UNIT_FRAMES;
+ td_group.threshold = NAPI_POLL_WEIGHT *
+ dpaa2_eth_queue_count(priv);
+ priv->max_bufs_per_ch = NAPI_POLL_WEIGHT *
+ dpaa2_eth_tc_count(priv);
+ break;
+ default:
+ break;
+ }
+
+ err = set_queue_taildrop(priv, &td_queue);
+ if (err)
+ return err;
+
+ err = set_group_taildrop(priv, &td_group);
+ if (err)
+ return err;
+
+ priv->refill_thresh = DPAA2_ETH_REFILL_THRESH(priv);
+
+ return 0;
+}
+
+static int setup_tx_flow(struct dpaa2_eth_priv *priv,
+ struct dpaa2_eth_fq *fq)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ struct dpni_queue queue;
+ struct dpni_queue_id qid;
+ int err;
+
+ err = dpni_get_queue(priv->mc_io, 0, priv->mc_token,
+ DPNI_QUEUE_TX, 0, fq->flowid, &queue, &qid);
+ if (err) {
+ dev_err(dev, "dpni_get_queue(TX) failed\n");
+ return err;
+ }
+
+ fq->tx_qdbin = qid.qdbin;
+
+ err = dpni_get_queue(priv->mc_io, 0, priv->mc_token,
+ DPNI_QUEUE_TX_CONFIRM, 0, fq->flowid,
+ &queue, &qid);
+ if (err) {
+ dev_err(dev, "dpni_get_queue(TX_CONF) failed\n");
+ return err;
+ }
+
+ fq->fqid = qid.fqid;
+
+ queue.destination.id = fq->channel->dpcon_id;
+ queue.destination.type = DPNI_DEST_DPCON;
+ queue.destination.priority = 0;
+ queue.user_context = (u64)(uintptr_t)fq;
+ err = dpni_set_queue(priv->mc_io, 0, priv->mc_token,
+ DPNI_QUEUE_TX_CONFIRM, 0, fq->flowid,
+ DPNI_QUEUE_OPT_USER_CTX | DPNI_QUEUE_OPT_DEST,
+ &queue);
+ if (err) {
+ dev_err(dev, "dpni_set_queue(TX_CONF) failed\n");
+ return err;
+ }
+
+ return 0;
+}
+
+#ifdef CONFIG_FSL_DPAA2_ETH_USE_ERR_QUEUE
+static int setup_rx_err_flow(struct dpaa2_eth_priv *priv,
+ struct dpaa2_eth_fq *fq)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ struct dpni_queue q = { { 0 } };
+ struct dpni_queue_id qid;
+ u8 q_opt = DPNI_QUEUE_OPT_USER_CTX | DPNI_QUEUE_OPT_DEST;
+ int err;
+
+ err = dpni_get_queue(priv->mc_io, 0, priv->mc_token,
+ DPNI_QUEUE_RX_ERR, 0, 0, &q, &qid);
+ if (err) {
+ dev_err(dev, "dpni_get_queue() failed (%d)\n", err);
+ return err;
+ }
+
+ fq->fqid = qid.fqid;
+
+ q.destination.id = fq->channel->dpcon_id;
+ q.destination.type = DPNI_DEST_DPCON;
+ q.destination.priority = 1;
+ q.user_context = (u64)fq;
+ err = dpni_set_queue(priv->mc_io, 0, priv->mc_token,
+ DPNI_QUEUE_RX_ERR, 0, 0, q_opt, &q);
+ if (err) {
+ dev_err(dev, "dpni_set_queue() failed (%d)\n", err);
+ return err;
+ }
+
+ return 0;
+}
+#endif
+
+/* default hash key fields */
+static struct dpaa2_eth_dist_fields default_dist_fields[] = {
+ {
+ /* L2 header */
+ .rxnfc_field = RXH_L2DA,
+ .cls_prot = NET_PROT_ETH,
+ .cls_field = NH_FLD_ETH_DA,
+ .id = DPAA2_ETH_DIST_ETHDST,
+ .size = 6,
+ }, {
+ .cls_prot = NET_PROT_ETH,
+ .cls_field = NH_FLD_ETH_SA,
+ .id = DPAA2_ETH_DIST_ETHSRC,
+ .size = 6,
+ }, {
+ /* This is the last ethertype field parsed:
+ * depending on frame format, it can be the MAC ethertype
+ * or the VLAN etype.
+ */
+ .cls_prot = NET_PROT_ETH,
+ .cls_field = NH_FLD_ETH_TYPE,
+ .id = DPAA2_ETH_DIST_ETHTYPE,
+ .size = 2,
+ }, {
+ /* VLAN header */
+ .rxnfc_field = RXH_VLAN,
+ .cls_prot = NET_PROT_VLAN,
+ .cls_field = NH_FLD_VLAN_TCI,
+ .id = DPAA2_ETH_DIST_VLAN,
+ .size = 2,
+ }, {
+ /* IP header */
+ .rxnfc_field = RXH_IP_SRC,
+ .cls_prot = NET_PROT_IP,
+ .cls_field = NH_FLD_IP_SRC,
+ .id = DPAA2_ETH_DIST_IPSRC,
+ .size = 4,
+ }, {
+ .rxnfc_field = RXH_IP_DST,
+ .cls_prot = NET_PROT_IP,
+ .cls_field = NH_FLD_IP_DST,
+ .id = DPAA2_ETH_DIST_IPDST,
+ .size = 4,
+ }, {
+ .rxnfc_field = RXH_L3_PROTO,
+ .cls_prot = NET_PROT_IP,
+ .cls_field = NH_FLD_IP_PROTO,
+ .id = DPAA2_ETH_DIST_IPPROTO,
+ .size = 1,
+ }, {
+ /* Using UDP ports, this is functionally equivalent to raw
+ * byte pairs from L4 header.
+ */
+ .rxnfc_field = RXH_L4_B_0_1,
+ .cls_prot = NET_PROT_UDP,
+ .cls_field = NH_FLD_UDP_PORT_SRC,
+ .id = DPAA2_ETH_DIST_L4SRC,
+ .size = 2,
+ }, {
+ .rxnfc_field = RXH_L4_B_2_3,
+ .cls_prot = NET_PROT_UDP,
+ .cls_field = NH_FLD_UDP_PORT_DST,
+ .id = DPAA2_ETH_DIST_L4DST,
+ .size = 2,
+ },
+};
+
+static int legacy_config_dist_key(struct dpaa2_eth_priv *priv,
+ dma_addr_t key_iova)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ struct dpni_rx_tc_dist_cfg dist_cfg;
+ int i, err;
+
+ /* In legacy mode, we can't configure flow steering independently */
+ if (!dpaa2_eth_hash_enabled(priv))
+ return -EOPNOTSUPP;
+
+ memset(&dist_cfg, 0, sizeof(dist_cfg));
+
+ dist_cfg.key_cfg_iova = key_iova;
+ dist_cfg.dist_size = dpaa2_eth_queue_count(priv);
+ if (dpaa2_eth_fs_enabled(priv)) {
+ dist_cfg.dist_mode = DPNI_DIST_MODE_FS;
+ dist_cfg.fs_cfg.miss_action = DPNI_FS_MISS_HASH;
+ } else {
+ dist_cfg.dist_mode = DPNI_DIST_MODE_HASH;
+ }
+
+ for (i = 0; i < dpaa2_eth_tc_count(priv); i++) {
+ err = dpni_set_rx_tc_dist(priv->mc_io, 0, priv->mc_token, i,
+ &dist_cfg);
+ if (err) {
+ dev_err(dev, "dpni_set_rx_tc_dist failed\n");
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+static int config_hash_key(struct dpaa2_eth_priv *priv, dma_addr_t key_iova)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ struct dpni_rx_dist_cfg dist_cfg;
+ int i, err;
+
+ if (!dpaa2_eth_hash_enabled(priv))
+ return -EOPNOTSUPP;
+
+ memset(&dist_cfg, 0, sizeof(dist_cfg));
+
+ dist_cfg.key_cfg_iova = key_iova;
+ dist_cfg.dist_size = dpaa2_eth_queue_count(priv);
+ dist_cfg.enable = true;
+
+ for (i = 0; i < dpaa2_eth_tc_count(priv); i++) {
+ dist_cfg.tc = i;
+
+ err = dpni_set_rx_hash_dist(priv->mc_io, 0,
+ priv->mc_token, &dist_cfg);
+ if (err) {
+ dev_err(dev, "dpni_set_rx_hash_dist failed\n");
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+static int config_fs_key(struct dpaa2_eth_priv *priv, dma_addr_t key_iova)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ struct dpni_rx_dist_cfg dist_cfg;
+ int i, err;
+
+ if (!dpaa2_eth_fs_enabled(priv))
+ return -EOPNOTSUPP;
+
+ memset(&dist_cfg, 0, sizeof(dist_cfg));
+
+ dist_cfg.key_cfg_iova = key_iova;
+ dist_cfg.dist_size = dpaa2_eth_queue_count(priv);
+ dist_cfg.enable = true;
+
+ for (i = 0; i < dpaa2_eth_tc_count(priv); i++) {
+ dist_cfg.tc = i;
+
+ err = dpni_set_rx_fs_dist(priv->mc_io, 0,
+ priv->mc_token, &dist_cfg);
+ if (err) {
+ dev_err(dev, "dpni_set_rx_fs_dist failed\n");
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+int dpaa2_eth_set_dist_key(struct dpaa2_eth_priv *priv,
+ enum dpaa2_eth_rx_dist type, u32 key_fields)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ struct dpkg_profile_cfg cls_cfg;
+ struct dpkg_extract *key;
+ u32 hash_fields = 0;
+ dma_addr_t key_iova;
+ u8 *key_mem;
+ int i, err;
+
+ memset(&cls_cfg, 0, sizeof(cls_cfg));
+
+ for (i = 0; i < priv->num_dist_fields; i++) {
+ if (!(key_fields & priv->dist_fields[i].id))
+ continue;
+
+ key = &cls_cfg.extracts[cls_cfg.num_extracts];
+ key->type = DPKG_EXTRACT_FROM_HDR;
+ key->extract.from_hdr.prot = priv->dist_fields[i].cls_prot;
+ key->extract.from_hdr.type = DPKG_FULL_FIELD;
+ key->extract.from_hdr.field = priv->dist_fields[i].cls_field;
+ cls_cfg.num_extracts++;
+
+ hash_fields |= priv->dist_fields[i].rxnfc_field;
+ }
+
+ key_mem = kzalloc(DPAA2_CLASSIFIER_DMA_SIZE, GFP_KERNEL);
+ if (!key_mem)
+ return -ENOMEM;
+
+ err = dpni_prepare_key_cfg(&cls_cfg, key_mem);
+ if (err) {
+ dev_err(dev, "dpni_prepare_key_cfg error %d\n", err);
+ goto free_key;
+ }
+
+ key_iova = dma_map_single(dev, key_mem, DPAA2_CLASSIFIER_DMA_SIZE,
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(dev, key_iova)) {
+ dev_err(dev, "DMA mapping failed\n");
+ err = -ENOMEM;
+ goto free_key;
+ }
+
+ switch (type) {
+ case DPAA2_ETH_RX_DIST_LEGACY:
+ err = legacy_config_dist_key(priv, key_iova);
+ break;
+ case DPAA2_ETH_RX_DIST_HASH:
+ err = config_hash_key(priv, key_iova);
+ break;
+ case DPAA2_ETH_RX_DIST_FS:
+ err = config_fs_key(priv, key_iova);
+ break;
+ default:
+ err = -EINVAL;
+ break;
+ }
+
+ dma_unmap_single(dev, key_iova, DPAA2_CLASSIFIER_DMA_SIZE,
+ DMA_TO_DEVICE);
+ if (err) {
+ if (err != -EOPNOTSUPP)
+ dev_err(dev, "Distribution key config failed\n");
+ goto free_key;
+ }
+
+ if (type != DPAA2_ETH_RX_DIST_FS)
+ priv->rx_hash_fields = hash_fields;
+
+free_key:
+ kfree(key_mem);
+ return err;
+}
+
+/* Bind the DPNI to its needed objects and resources: buffer pool, DPIOs,
+ * frame queues and channels
+ */
+static int bind_dpni(struct dpaa2_eth_priv *priv)
+{
+ struct net_device *net_dev = priv->net_dev;
+ struct device *dev = net_dev->dev.parent;
+ struct dpni_pools_cfg pools_params;
+ struct dpni_error_cfg err_cfg;
+ int err = 0;
+ int i;
+
+ pools_params.num_dpbp = 1;
+ pools_params.pools[0].dpbp_id = priv->dpbp_dev->obj_desc.id;
+ pools_params.pools[0].backup_pool = 0;
+ pools_params.pools[0].priority_mask = 0xff;
+ pools_params.pools[0].buffer_size = DPAA2_ETH_RX_BUF_SIZE;
+ err = dpni_set_pools(priv->mc_io, 0, priv->mc_token, &pools_params);
+ if (err) {
+ dev_err(dev, "dpni_set_pools() failed\n");
+ return err;
+ }
+
+ /* Verify classification options and disable hashing and/or
+ * flow steering support in case of invalid configuration values
+ */
+ priv->dist_fields = default_dist_fields;
+ priv->num_dist_fields = ARRAY_SIZE(default_dist_fields);
+ check_cls_support(priv);
+
+ /* have the interface implicitly distribute traffic based on
+ * a static hash key. Also configure flow steering key, if supported.
+ * Errors here are not blocking, so just let the called function
+ * print its error message and move along.
+ */
+ if (dpaa2_eth_has_legacy_dist(priv)) {
+ dpaa2_eth_set_dist_key(priv, DPAA2_ETH_RX_DIST_LEGACY,
+ DPAA2_ETH_DIST_ALL);
+ } else {
+ dpaa2_eth_set_dist_key(priv, DPAA2_ETH_RX_DIST_HASH,
+ DPAA2_ETH_DIST_DEFAULT_HASH);
+ dpaa2_eth_set_dist_key(priv, DPAA2_ETH_RX_DIST_FS,
+ DPAA2_ETH_DIST_ALL);
+ }
+
+ /* Configure handling of error frames */
+ err_cfg.errors = DPAA2_FAS_RX_ERR_MASK;
+ err_cfg.set_frame_annotation = 1;
+#ifdef CONFIG_FSL_DPAA2_ETH_USE_ERR_QUEUE
+ err_cfg.error_action = DPNI_ERROR_ACTION_SEND_TO_ERROR_QUEUE;
+#else
+ err_cfg.error_action = DPNI_ERROR_ACTION_DISCARD;
+#endif
+ err = dpni_set_errors_behavior(priv->mc_io, 0, priv->mc_token,
+ &err_cfg);
+ if (err) {
+ dev_err(dev, "dpni_set_errors_behavior failed\n");
+ return err;
+ }
+
+ /* Configure Rx and Tx conf queues to generate CDANs */
+ for (i = 0; i < priv->num_fqs; i++) {
+ switch (priv->fq[i].type) {
+ case DPAA2_RX_FQ:
+ err = setup_rx_flow(priv, &priv->fq[i]);
+ break;
+ case DPAA2_TX_CONF_FQ:
+ err = setup_tx_flow(priv, &priv->fq[i]);
+ break;
+#ifdef CONFIG_FSL_DPAA2_ETH_USE_ERR_QUEUE
+ case DPAA2_RX_ERR_FQ:
+ err = setup_rx_err_flow(priv, &priv->fq[i]);
+ break;
+#endif
+ default:
+ dev_err(dev, "Invalid FQ type %d\n", priv->fq[i].type);
+ return -EINVAL;
+ }
+ if (err)
+ return err;
+ }
+
+ err = dpni_get_qdid(priv->mc_io, 0, priv->mc_token,
+ DPNI_QUEUE_TX, &priv->tx_qdid);
+ if (err) {
+ dev_err(dev, "dpni_get_qdid() failed\n");
+ return err;
+ }
+
+ return 0;
+}
+
+/* Allocate rings for storing incoming frame descriptors */
+static int alloc_rings(struct dpaa2_eth_priv *priv)
+{
+ struct net_device *net_dev = priv->net_dev;
+ struct device *dev = net_dev->dev.parent;
+ int i;
+
+ for (i = 0; i < priv->num_channels; i++) {
+ priv->channel[i]->store =
+ dpaa2_io_store_create(DPAA2_ETH_STORE_SIZE, dev);
+ if (!priv->channel[i]->store) {
+ netdev_err(net_dev, "dpaa2_io_store_create() failed\n");
+ goto err_ring;
+ }
+ }
+
+ return 0;
+
+err_ring:
+ for (i = 0; i < priv->num_channels; i++) {
+ if (!priv->channel[i]->store)
+ break;
+ dpaa2_io_store_destroy(priv->channel[i]->store);
+ }
+
+ return -ENOMEM;
+}
+
+static void free_rings(struct dpaa2_eth_priv *priv)
+{
+ int i;
+
+ for (i = 0; i < priv->num_channels; i++)
+ dpaa2_io_store_destroy(priv->channel[i]->store);
+}
+
+static int set_mac_addr(struct dpaa2_eth_priv *priv)
+{
+ struct net_device *net_dev = priv->net_dev;
+ struct device *dev = net_dev->dev.parent;
+ u8 mac_addr[ETH_ALEN], dpni_mac_addr[ETH_ALEN];
+ int err;
+
+ /* Get firmware address, if any */
+ err = dpni_get_port_mac_addr(priv->mc_io, 0, priv->mc_token, mac_addr);
+ if (err) {
+ dev_err(dev, "dpni_get_port_mac_addr() failed\n");
+ return err;
+ }
+
+ /* Get DPNI attributes address, if any */
+ err = dpni_get_primary_mac_addr(priv->mc_io, 0, priv->mc_token,
+ dpni_mac_addr);
+ if (err) {
+ dev_err(dev, "dpni_get_primary_mac_addr() failed\n");
+ return err;
+ }
+
+ /* First check if firmware has any address configured by bootloader */
+ if (!is_zero_ether_addr(mac_addr)) {
+ /* If the DPMAC addr != DPNI addr, update it */
+ if (!ether_addr_equal(mac_addr, dpni_mac_addr)) {
+ err = dpni_set_primary_mac_addr(priv->mc_io, 0,
+ priv->mc_token,
+ mac_addr);
+ if (err) {
+ dev_err(dev, "dpni_set_primary_mac_addr() failed\n");
+ return err;
+ }
+ }
+ memcpy(net_dev->dev_addr, mac_addr, net_dev->addr_len);
+ } else if (is_zero_ether_addr(dpni_mac_addr)) {
+ /* No MAC address configured, fill in net_dev->dev_addr
+ * with a random one
+ */
+ eth_hw_addr_random(net_dev);
+ dev_dbg_once(dev, "device(s) have all-zero hwaddr, replaced with random\n");
+
+ err = dpni_set_primary_mac_addr(priv->mc_io, 0, priv->mc_token,
+ net_dev->dev_addr);
+ if (err) {
+ dev_err(dev, "dpni_set_primary_mac_addr() failed\n");
+ return err;
+ }
+
+ /* Override NET_ADDR_RANDOM set by eth_hw_addr_random(); for all
+ * practical purposes, this will be our "permanent" mac address,
+ * at least until the next reboot. This move will also permit
+ * register_netdevice() to properly fill up net_dev->perm_addr.
+ */
+ net_dev->addr_assign_type = NET_ADDR_PERM;
+ } else {
+ /* NET_ADDR_PERM is default, all we have to do is
+ * fill in the device addr.
+ */
+ memcpy(net_dev->dev_addr, dpni_mac_addr, net_dev->addr_len);
+ }
+
+ return 0;
+}
+
+static int netdev_init(struct net_device *net_dev)
+{
+ struct device *dev = net_dev->dev.parent;
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ u8 bcast_addr[ETH_ALEN];
+ u8 num_queues;
+ int err;
+
+ net_dev->netdev_ops = &dpaa2_eth_ops;
+
+ err = set_mac_addr(priv);
+ if (err)
+ return err;
+
+ /* Explicitly add the broadcast address to the MAC filtering table */
+ eth_broadcast_addr(bcast_addr);
+ err = dpni_add_mac_addr(priv->mc_io, 0, priv->mc_token, bcast_addr);
+ if (err) {
+ dev_err(dev, "dpni_add_mac_addr() failed\n");
+ return err;
+ }
+
+ /* Set MTU upper limit; lower limit is default (68B) */
+ net_dev->max_mtu = DPAA2_ETH_MAX_MTU;
+ err = dpni_set_max_frame_length(priv->mc_io, 0, priv->mc_token,
+ (u16)DPAA2_ETH_MFL);
+ if (err) {
+ dev_err(dev, "dpni_set_max_frame_length() failed\n");
+ return err;
+ }
+
+ /* Set actual number of queues in the net device */
+ num_queues = dpaa2_eth_queue_count(priv);
+ err = netif_set_real_num_tx_queues(net_dev, num_queues);
+ if (err) {
+ dev_err(dev, "netif_set_real_num_tx_queues() failed\n");
+ return err;
+ }
+ err = netif_set_real_num_rx_queues(net_dev, num_queues);
+ if (err) {
+ dev_err(dev, "netif_set_real_num_rx_queues() failed\n");
+ return err;
+ }
+
+ /* Our .ndo_init will be called herein */
+ err = register_netdev(net_dev);
+ if (err < 0) {
+ dev_err(dev, "register_netdev() failed\n");
+ return err;
+ }
+
+ return 0;
+}
+
+static int poll_link_state(void *arg)
+{
+ struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)arg;
+ int err;
+
+ while (!kthread_should_stop()) {
+ err = link_state_update(priv);
+ if (unlikely(err))
+ return err;
+
+ msleep(DPAA2_ETH_LINK_STATE_REFRESH);
+ }
+
+ return 0;
+}
+
+static irqreturn_t dpni_irq0_handler_thread(int irq_num, void *arg)
+{
+ u32 status = ~0;
+ struct device *dev = (struct device *)arg;
+ struct fsl_mc_device *dpni_dev = to_fsl_mc_device(dev);
+ struct net_device *net_dev = dev_get_drvdata(dev);
+ int err;
+
+ err = dpni_get_irq_status(dpni_dev->mc_io, 0, dpni_dev->mc_handle,
+ DPNI_IRQ_INDEX, &status);
+ if (unlikely(err)) {
+ netdev_err(net_dev, "Can't get irq status (err %d)\n", err);
+ return IRQ_HANDLED;
+ }
+
+ if (status & DPNI_IRQ_EVENT_LINK_CHANGED)
+ link_state_update(netdev_priv(net_dev));
+
+ return IRQ_HANDLED;
+}
+
+static int setup_irqs(struct fsl_mc_device *ls_dev)
+{
+ int err = 0;
+ struct fsl_mc_device_irq *irq;
+
+ err = fsl_mc_allocate_irqs(ls_dev);
+ if (err) {
+ dev_err(&ls_dev->dev, "MC irqs allocation failed\n");
+ return err;
+ }
+
+ irq = ls_dev->irqs[0];
+ err = devm_request_threaded_irq(&ls_dev->dev, irq->msi_desc->irq,
+ NULL, dpni_irq0_handler_thread,
+ IRQF_NO_SUSPEND | IRQF_ONESHOT,
+ dev_name(&ls_dev->dev), &ls_dev->dev);
+ if (err < 0) {
+ dev_err(&ls_dev->dev, "devm_request_threaded_irq(): %d\n", err);
+ goto free_mc_irq;
+ }
+
+ err = dpni_set_irq_mask(ls_dev->mc_io, 0, ls_dev->mc_handle,
+ DPNI_IRQ_INDEX, DPNI_IRQ_EVENT_LINK_CHANGED);
+ if (err < 0) {
+ dev_err(&ls_dev->dev, "dpni_set_irq_mask(): %d\n", err);
+ goto free_irq;
+ }
+
+ err = dpni_set_irq_enable(ls_dev->mc_io, 0, ls_dev->mc_handle,
+ DPNI_IRQ_INDEX, 1);
+ if (err < 0) {
+ dev_err(&ls_dev->dev, "dpni_set_irq_enable(): %d\n", err);
+ goto free_irq;
+ }
+
+ return 0;
+
+free_irq:
+ devm_free_irq(&ls_dev->dev, irq->msi_desc->irq, &ls_dev->dev);
+free_mc_irq:
+ fsl_mc_free_irqs(ls_dev);
+
+ return err;
+}
+
+static void add_ch_napi(struct dpaa2_eth_priv *priv)
+{
+ int i;
+ struct dpaa2_eth_channel *ch;
+
+ for (i = 0; i < priv->num_channels; i++) {
+ ch = priv->channel[i];
+ /* NAPI weight *MUST* be a multiple of DPAA2_ETH_STORE_SIZE */
+ netif_napi_add(priv->net_dev, &ch->napi, dpaa2_eth_poll,
+ NAPI_POLL_WEIGHT);
+ }
+}
+
+static void del_ch_napi(struct dpaa2_eth_priv *priv)
+{
+ int i;
+ struct dpaa2_eth_channel *ch;
+
+ for (i = 0; i < priv->num_channels; i++) {
+ ch = priv->channel[i];
+ netif_napi_del(&ch->napi);
+ }
+}
+
+/* SysFS support */
+static ssize_t dpaa2_eth_show_tx_shaping(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(to_net_dev(dev));
+ /* No MC API for getting the shaping config. We're stateful. */
+ struct dpni_tx_shaping_cfg *scfg = &priv->shaping_cfg;
+
+ return sprintf(buf, "%u %hu\n", scfg->rate_limit, scfg->max_burst_size);
+}
+
+static ssize_t dpaa2_eth_write_tx_shaping(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ int err, items;
+ struct dpaa2_eth_priv *priv = netdev_priv(to_net_dev(dev));
+ struct dpni_tx_shaping_cfg scfg, ercfg = { 0 };
+
+ items = sscanf(buf, "%u %hu", &scfg.rate_limit, &scfg.max_burst_size);
+ if (items != 2) {
+ pr_err("Expected format: \"rate_limit(Mbps) max_burst_size(bytes)\"\n");
+ return -EINVAL;
+ }
+ /* Size restriction as per MC API documentation */
+ if (scfg.max_burst_size > DPAA2_ETH_MAX_BURST_SIZE) {
+ pr_err("max_burst_size must be <= %d\n",
+ DPAA2_ETH_MAX_BURST_SIZE);
+ return -EINVAL;
+ }
+
+ err = dpni_set_tx_shaping(priv->mc_io, 0, priv->mc_token, &scfg,
+ &ercfg, 0);
+ if (err) {
+ dev_err(dev, "dpni_set_tx_shaping() failed\n");
+ return -EPERM;
+ }
+ /* If successful, save the current configuration for future inquiries */
+ priv->shaping_cfg = scfg;
+
+ return count;
+}
+
+static struct device_attribute dpaa2_eth_attrs[] = {
+ __ATTR(tx_shaping,
+ 0600,
+ dpaa2_eth_show_tx_shaping,
+ dpaa2_eth_write_tx_shaping),
+};
+
+static void dpaa2_eth_sysfs_init(struct device *dev)
+{
+ int i, err;
+
+ for (i = 0; i < ARRAY_SIZE(dpaa2_eth_attrs); i++) {
+ err = device_create_file(dev, &dpaa2_eth_attrs[i]);
+ if (err) {
+ dev_err(dev, "ERROR creating sysfs file\n");
+ goto undo;
+ }
+ }
+ return;
+
+undo:
+ while (i > 0)
+ device_remove_file(dev, &dpaa2_eth_attrs[--i]);
+}
+
+static void dpaa2_eth_sysfs_remove(struct device *dev)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(dpaa2_eth_attrs); i++)
+ device_remove_file(dev, &dpaa2_eth_attrs[i]);
+}
+
+#ifdef CONFIG_FSL_DPAA2_ETH_DCB
+static int dpaa2_eth_dcbnl_ieee_getpfc(struct net_device *net_dev,
+ struct ieee_pfc *pfc)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ struct dpni_congestion_notification_cfg notification_cfg;
+ struct dpni_link_state state;
+ int err, i;
+
+ priv->pfc.pfc_cap = dpaa2_eth_tc_count(priv);
+
+ err = dpni_get_link_state(priv->mc_io, 0, priv->mc_token, &state);
+ if (err) {
+ netdev_err(net_dev, "ERROR %d getting link state", err);
+ return err;
+ }
+
+ if (!(state.options & DPNI_LINK_OPT_PFC_PAUSE))
+ return 0;
+
+ priv->pfc.pfc_en = 0;
+ for (i = 0; i < dpaa2_eth_tc_count(priv); i++) {
+ err = dpni_get_congestion_notification(priv->mc_io, 0,
+ priv->mc_token,
+ DPNI_QUEUE_RX,
+ i, &notification_cfg);
+ if (err) {
+ netdev_err(net_dev, "Error %d getting congestion notif",
+ err);
+ return err;
+ }
+
+ if (notification_cfg.threshold_entry)
+ priv->pfc.pfc_en |= 1 << i;
+ }
+
+ memcpy(pfc, &priv->pfc, sizeof(priv->pfc));
+
+ return 0;
+}
+
+/* Configure ingress classification based on VLAN PCP */
+static int set_vlan_qos(struct dpaa2_eth_priv *priv)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ struct dpkg_profile_cfg kg_cfg = {0};
+ struct dpni_qos_tbl_cfg qos_cfg = {0};
+ struct dpni_rule_cfg key_params;
+ u8 *params_iova, *key, *mask = NULL;
+ /* We only need the trailing 16 bits, without the TPID */
+ u8 key_size = VLAN_HLEN / 2;
+ int err = 0, i, j = 0;
+
+ if (priv->vlan_clsf_set)
+ return 0;
+
+ params_iova = kzalloc(DPAA2_CLASSIFIER_DMA_SIZE, GFP_KERNEL);
+ if (!params_iova)
+ return -ENOMEM;
+
+ kg_cfg.num_extracts = 1;
+ kg_cfg.extracts[0].type = DPKG_EXTRACT_FROM_HDR;
+ kg_cfg.extracts[0].extract.from_hdr.prot = NET_PROT_VLAN;
+ kg_cfg.extracts[0].extract.from_hdr.type = DPKG_FULL_FIELD;
+ kg_cfg.extracts[0].extract.from_hdr.field = NH_FLD_VLAN_TCI;
+
+ err = dpni_prepare_key_cfg(&kg_cfg, params_iova);
+ if (err) {
+ dev_err(dev, "dpkg_prepare_key_cfg failed: %d\n", err);
+ goto out_free;
+ }
+
+ /* Set QoS table */
+ qos_cfg.default_tc = 0;
+ qos_cfg.discard_on_miss = 0;
+ qos_cfg.key_cfg_iova = dma_map_single(dev, params_iova,
+ DPAA2_CLASSIFIER_DMA_SIZE,
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(dev, qos_cfg.key_cfg_iova)) {
+ dev_err(dev, "%s: DMA mapping failed\n", __func__);
+ err = -ENOMEM;
+ goto out_free;
+ }
+ err = dpni_set_qos_table(priv->mc_io, 0, priv->mc_token, &qos_cfg);
+ dma_unmap_single(dev, qos_cfg.key_cfg_iova,
+ DPAA2_CLASSIFIER_DMA_SIZE, DMA_TO_DEVICE);
+
+ if (err) {
+ dev_err(dev, "dpni_set_qos_table failed: %d\n", err);
+ goto out_free;
+ }
+
+ key_params.key_size = key_size;
+
+ if (dpaa2_eth_fs_mask_enabled(priv)) {
+ mask = kzalloc(key_size, GFP_KERNEL);
+ if (!mask)
+ goto out_free;
+
+ *mask = cpu_to_be16(VLAN_PRIO_MASK);
+
+ key_params.mask_iova = dma_map_single(dev, mask, key_size,
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(dev, key_params.mask_iova)) {
+ dev_err(dev, "DMA mapping failed %s\n", __func__);
+ err = -ENOMEM;
+ goto out_free_mask;
+ }
+ } else {
+ key_params.mask_iova = 0;
+ }
+
+ key = kzalloc(key_size, GFP_KERNEL);
+ if (!key)
+ goto out_cleanup_mask;
+
+ key_params.key_iova = dma_map_single(dev, key, key_size,
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(dev, key_params.key_iova)) {
+ dev_err(dev, "%s: DMA mapping failed\n", __func__);
+ err = -ENOMEM;
+ goto out_free_key;
+ }
+
+ for (i = 0; i < dpaa2_eth_tc_count(priv); i++) {
+ *key = cpu_to_be16(i << VLAN_PRIO_SHIFT);
+
+ dma_sync_single_for_device(dev, key_params.key_iova,
+ key_size, DMA_TO_DEVICE);
+
+ err = dpni_add_qos_entry(priv->mc_io, 0, priv->mc_token,
+ &key_params, i, j++);
+ if (err) {
+ dev_err(dev, "dpni_add_qos_entry failed: %d\n", err);
+ goto out_remove;
+ }
+ }
+
+ priv->vlan_clsf_set = true;
+ dev_dbg(dev, "Vlan PCP QoS classification set\n");
+ goto out_cleanup;
+
+out_remove:
+ for (j = 0; j < i; j++) {
+ *key = cpu_to_be16(j << VLAN_PRIO_SHIFT);
+
+ dma_sync_single_for_device(dev, key_params.key_iova, key_size,
+ DMA_TO_DEVICE);
+
+ err = dpni_remove_qos_entry(priv->mc_io, 0, priv->mc_token,
+ &key_params);
+ if (err)
+ dev_err(dev, "dpni_remove_qos_entry failed: %d\n", err);
+ }
+
+out_cleanup:
+ dma_unmap_single(dev, key_params.key_iova, key_size, DMA_TO_DEVICE);
+out_free_key:
+ kfree(key);
+out_cleanup_mask:
+ if (key_params.mask_iova)
+ dma_unmap_single(dev, key_params.mask_iova, key_size,
+ DMA_TO_DEVICE);
+out_free_mask:
+ kfree(mask);
+out_free:
+ kfree(params_iova);
+ return err;
+}
+
+static int dpaa2_eth_dcbnl_ieee_setpfc(struct net_device *net_dev,
+ struct ieee_pfc *pfc)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ struct dpni_congestion_notification_cfg notification_cfg = {0};
+ struct dpni_link_state state = {0};
+ struct dpni_link_cfg cfg = {0};
+ struct ieee_pfc old_pfc;
+ int err = 0, i;
+
+ if (dpaa2_eth_tc_count(priv) == 1) {
+ netdev_dbg(net_dev, "DPNI has 1 TC, PFC configuration N/A\n");
+ return 0;
+ }
+
+ /* Zero out pfc_enabled prios greater than tc_count */
+ pfc->pfc_en &= (1 << dpaa2_eth_tc_count(priv)) - 1;
+
+ if (priv->pfc.pfc_en == pfc->pfc_en)
+ /* Same enabled mask, nothing to be done */
+ return 0;
+
+ err = set_vlan_qos(priv);
+ if (err)
+ return err;
+
+ err = dpni_get_link_state(priv->mc_io, 0, priv->mc_token, &state);
+ if (err) {
+ netdev_err(net_dev, "ERROR %d getting link state", err);
+ return err;
+ }
+
+ cfg.rate = state.rate;
+ cfg.options = state.options;
+ if (pfc->pfc_en)
+ cfg.options |= DPNI_LINK_OPT_PFC_PAUSE;
+ else
+ cfg.options &= ~DPNI_LINK_OPT_PFC_PAUSE;
+
+ err = dpni_set_link_cfg(priv->mc_io, 0, priv->mc_token, &cfg);
+ if (err) {
+ netdev_err(net_dev, "ERROR %d setting link cfg", err);
+ return err;
+ }
+
+ memcpy(&old_pfc, &priv->pfc, sizeof(priv->pfc));
+ memcpy(&priv->pfc, pfc, sizeof(priv->pfc));
+
+ err = set_rx_taildrop(priv);
+ if (err)
+ goto out_restore_config;
+
+ /* configure congestion notifications */
+ notification_cfg.notification_mode = DPNI_CONG_OPT_FLOW_CONTROL;
+ notification_cfg.units = DPNI_CONGESTION_UNIT_FRAMES;
+ notification_cfg.message_iova = 0ULL;
+ notification_cfg.message_ctx = 0ULL;
+
+ for (i = 0; i < dpaa2_eth_tc_count(priv); i++) {
+ if (dpaa2_eth_is_pfc_enabled(priv, i)) {
+ notification_cfg.threshold_entry = NAPI_POLL_WEIGHT;
+ notification_cfg.threshold_exit = NAPI_POLL_WEIGHT / 2;
+ } else {
+ notification_cfg.threshold_entry = 0;
+ notification_cfg.threshold_exit = 0;
+ }
+
+ err = dpni_set_congestion_notification(priv->mc_io, 0,
+ priv->mc_token,
+ DPNI_QUEUE_RX,
+ i, &notification_cfg);
+ if (err) {
+ netdev_err(net_dev, "Error %d setting congestion notif",
+ err);
+ goto out_restore_config;
+ }
+
+ netdev_dbg(net_dev, "%s congestion notifications for tc %d\n",
+ (notification_cfg.threshold_entry ?
+ "Enabled" : "Disabled"), i);
+ }
+
+ return 0;
+
+out_restore_config:
+ memcpy(&priv->pfc, &old_pfc, sizeof(priv->pfc));
+ return err;
+}
+
+static u8 dpaa2_eth_dcbnl_getdcbx(struct net_device *net_dev)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+
+ return priv->dcbx_mode;
+}
+
+static u8 dpaa2_eth_dcbnl_setdcbx(struct net_device *net_dev, u8 mode)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+
+ priv->dcbx_mode = mode;
+ return 0;
+}
+
+static u8 dpaa2_eth_dcbnl_getcap(struct net_device *net_dev, int capid, u8 *cap)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+
+ switch (capid) {
+ case DCB_CAP_ATTR_PFC:
+ *cap = true;
+ break;
+ case DCB_CAP_ATTR_PFC_TCS:
+ /* bitmap where each bit represents a number of traffic
+ * classes the device can be configured to use for Priority
+ * Flow Control
+ */
+ *cap = 1 << (dpaa2_eth_tc_count(priv) - 1);
+ break;
+ case DCB_CAP_ATTR_DCBX:
+ *cap = priv->dcbx_mode;
+ break;
+ default:
+ *cap = false;
+ break;
+ }
+
+ return 0;
+}
+
+const struct dcbnl_rtnl_ops dpaa2_eth_dcbnl_ops = {
+ .ieee_getpfc = dpaa2_eth_dcbnl_ieee_getpfc,
+ .ieee_setpfc = dpaa2_eth_dcbnl_ieee_setpfc,
+ .getdcbx = dpaa2_eth_dcbnl_getdcbx,
+ .setdcbx = dpaa2_eth_dcbnl_setdcbx,
+ .getcap = dpaa2_eth_dcbnl_getcap,
+};
+#endif
+
+static int dpaa2_eth_probe(struct fsl_mc_device *dpni_dev)
+{
+ struct device *dev;
+ struct net_device *net_dev = NULL;
+ struct dpaa2_eth_priv *priv = NULL;
+ int err = 0;
+
+ dev = &dpni_dev->dev;
+
+ /* Net device */
+ net_dev = alloc_etherdev_mq(sizeof(*priv), DPAA2_ETH_MAX_TX_QUEUES);
+ if (!net_dev) {
+ dev_err(dev, "alloc_etherdev_mq() failed\n");
+ return -ENOMEM;
+ }
+
+ SET_NETDEV_DEV(net_dev, dev);
+ dev_set_drvdata(dev, net_dev);
+
+ priv = netdev_priv(net_dev);
+ priv->net_dev = net_dev;
+
+ priv->iommu_domain = iommu_get_domain_for_dev(dev);
+
+ /* Obtain a MC portal */
+ err = fsl_mc_portal_allocate(dpni_dev, FSL_MC_IO_ATOMIC_CONTEXT_PORTAL,
+ &priv->mc_io);
+ if (err) {
+ if (err == -ENXIO)
+ err = -EPROBE_DEFER;
+ else
+ dev_err(dev, "MC portal allocation failed\n");
+ goto err_portal_alloc;
+ }
+
+ /* MC objects initialization and configuration */
+ err = setup_dpni(dpni_dev);
+ if (err)
+ goto err_dpni_setup;
+
+ err = setup_dpio(priv);
+ if (err)
+ goto err_dpio_setup;
+
+ setup_fqs(priv);
+
+ err = setup_dpbp(priv);
+ if (err)
+ goto err_dpbp_setup;
+
+ err = bind_dpni(priv);
+ if (err)
+ goto err_bind;
+
+ /* Percpu statistics */
+ priv->percpu_stats = alloc_percpu(*priv->percpu_stats);
+ if (!priv->percpu_stats) {
+ dev_err(dev, "alloc_percpu(percpu_stats) failed\n");
+ err = -ENOMEM;
+ goto err_alloc_percpu_stats;
+ }
+ priv->percpu_extras = alloc_percpu(*priv->percpu_extras);
+ if (!priv->percpu_extras) {
+ dev_err(dev, "alloc_percpu(percpu_extras) failed\n");
+ err = -ENOMEM;
+ goto err_alloc_percpu_extras;
+ }
+
+ err = netdev_init(net_dev);
+ if (err)
+ goto err_netdev_init;
+
+ /* Configure checksum offload based on current interface flags */
+ err = set_rx_csum(priv, !!(net_dev->features & NETIF_F_RXCSUM));
+ if (err)
+ goto err_csum;
+
+ err = set_tx_csum(priv, !!(net_dev->features &
+ (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM)));
+ if (err)
+ goto err_csum;
+
+ err = alloc_rings(priv);
+ if (err)
+ goto err_alloc_rings;
+
+ net_dev->ethtool_ops = &dpaa2_ethtool_ops;
+#ifdef CONFIG_FSL_DPAA2_ETH_DCB
+ net_dev->dcbnl_ops = &dpaa2_eth_dcbnl_ops;
+ priv->dcbx_mode = DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_IEEE;
+#endif
+
+ /* Add a NAPI context for each channel */
+ add_ch_napi(priv);
+ enable_ch_napi(priv);
+
+ err = setup_irqs(dpni_dev);
+ if (err) {
+ netdev_warn(net_dev, "Failed to set link interrupt, fall back to polling\n");
+ priv->poll_thread = kthread_run(poll_link_state, priv,
+ "%s_poll_link", net_dev->name);
+ if (IS_ERR(priv->poll_thread)) {
+ netdev_err(net_dev, "Error starting polling thread\n");
+ goto err_poll_thread;
+ }
+ priv->do_link_poll = true;
+ }
+
+ dpaa2_eth_sysfs_init(&net_dev->dev);
+#ifdef CONFIG_FSL_DPAA2_ETH_DEBUGFS
+ dpaa2_dbg_add(priv);
+#endif
+
+ dev_info(dev, "Probed interface %s\n", net_dev->name);
+ return 0;
+
+err_poll_thread:
+ free_rings(priv);
+err_alloc_rings:
+err_csum:
+ unregister_netdev(net_dev);
+err_netdev_init:
+ free_percpu(priv->percpu_extras);
+err_alloc_percpu_extras:
+ free_percpu(priv->percpu_stats);
+err_alloc_percpu_stats:
+ disable_ch_napi(priv);
+ del_ch_napi(priv);
+err_bind:
+ free_dpbp(priv);
+err_dpbp_setup:
+ free_dpio(priv);
+err_dpio_setup:
+ free_dpni(priv);
+err_dpni_setup:
+ fsl_mc_portal_free(priv->mc_io);
+err_portal_alloc:
+ dev_set_drvdata(dev, NULL);
+ free_netdev(net_dev);
+
+ return err;
+}
+
+static int dpaa2_eth_remove(struct fsl_mc_device *ls_dev)
+{
+ struct device *dev;
+ struct net_device *net_dev;
+ struct dpaa2_eth_priv *priv;
+
+ dev = &ls_dev->dev;
+ net_dev = dev_get_drvdata(dev);
+ priv = netdev_priv(net_dev);
+
+#ifdef CONFIG_FSL_DPAA2_ETH_DEBUGFS
+ dpaa2_dbg_remove(priv);
+#endif
+ dpaa2_eth_sysfs_remove(&net_dev->dev);
+
+ unregister_netdev(net_dev);
+
+ disable_ch_napi(priv);
+ del_ch_napi(priv);
+
+ if (priv->do_link_poll)
+ kthread_stop(priv->poll_thread);
+ else
+ fsl_mc_free_irqs(ls_dev);
+
+ free_rings(priv);
+ free_percpu(priv->percpu_stats);
+ free_percpu(priv->percpu_extras);
+ free_dpbp(priv);
+ free_dpio(priv);
+ free_dpni(priv);
+
+ fsl_mc_portal_free(priv->mc_io);
+
+ dev_set_drvdata(dev, NULL);
+ free_netdev(net_dev);
+
+ dev_dbg(net_dev->dev.parent, "Removed interface %s\n", net_dev->name);
+
+ return 0;
+}
+
+static const struct fsl_mc_device_id dpaa2_eth_match_id_table[] = {
+ {
+ .vendor = FSL_MC_VENDOR_FREESCALE,
+ .obj_type = "dpni",
+ },
+ { .vendor = 0x0 }
+};
+MODULE_DEVICE_TABLE(fslmc, dpaa2_eth_match_id_table);
+
+static struct fsl_mc_driver dpaa2_eth_driver = {
+ .driver = {
+ .name = KBUILD_MODNAME,
+ .owner = THIS_MODULE,
+ },
+ .probe = dpaa2_eth_probe,
+ .remove = dpaa2_eth_remove,
+ .match_id_table = dpaa2_eth_match_id_table
+};
+
+static int __init dpaa2_eth_driver_init(void)
+{
+ int err;
+
+ dpaa2_eth_dbg_init();
+ err = fsl_mc_driver_register(&dpaa2_eth_driver);
+ if (err)
+ goto out_debugfs_err;
+
+ err = dpaa2_ceetm_register();
+ if (err)
+ goto out_ceetm_err;
+
+ return 0;
+
+out_ceetm_err:
+ fsl_mc_driver_unregister(&dpaa2_eth_driver);
+out_debugfs_err:
+ dpaa2_eth_dbg_exit();
+ return err;
+}
+
+static void __exit dpaa2_eth_driver_exit(void)
+{
+ dpaa2_ceetm_unregister();
+ fsl_mc_driver_unregister(&dpaa2_eth_driver);
+ dpaa2_eth_dbg_exit();
+}
+
+module_init(dpaa2_eth_driver_init);
+module_exit(dpaa2_eth_driver_exit);
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.h
@@ -0,0 +1,601 @@
+/* Copyright 2014-2016 Freescale Semiconductor Inc.
+ * Copyright 2016 NXP
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __DPAA2_ETH_H
+#define __DPAA2_ETH_H
+
+#include <linux/dcbnl.h>
+#include <linux/netdevice.h>
+#include <linux/if_vlan.h>
+
+#include "../../fsl-mc/include/dpaa2-io.h"
+#include "../../fsl-mc/include/dpaa2-fd.h"
+#include "dpni.h"
+#include "dpni-cmd.h"
+
+#include "dpaa2-eth-trace.h"
+#include "dpaa2-eth-debugfs.h"
+
+#define DPAA2_WRIOP_VERSION(x, y, z) ((x) << 10 | (y) << 5 | (z) << 0)
+
+#define DPAA2_ETH_STORE_SIZE 16
+
+/* We set a max threshold for how many Tx confirmations we should process
+ * on a NAPI poll call, they take less processing time.
+ */
+#define TX_CONF_PER_NAPI_POLL 256
+
+/* Maximum number of scatter-gather entries in an ingress frame,
+ * considering the maximum receive frame size is 64K
+ */
+#define DPAA2_ETH_MAX_SG_ENTRIES ((64 * 1024) / DPAA2_ETH_RX_BUF_SIZE)
+
+/* Maximum acceptable MTU value. It is in direct relation with the hardware
+ * enforced Max Frame Length (currently 10k).
+ */
+#define DPAA2_ETH_MFL (10 * 1024)
+#define DPAA2_ETH_MAX_MTU (DPAA2_ETH_MFL - VLAN_ETH_HLEN)
+/* Convert L3 MTU to L2 MFL */
+#define DPAA2_ETH_L2_MAX_FRM(mtu) ((mtu) + VLAN_ETH_HLEN)
+
+/* Maximum burst size value for Tx shaping */
+#define DPAA2_ETH_MAX_BURST_SIZE 0xF7FF
+
+/* Maximum number of buffers that can be acquired/released through a single
+ * QBMan command
+ */
+#define DPAA2_ETH_BUFS_PER_CMD 7
+
+/* Set the taildrop threshold (in bytes) to allow the enqueue of several jumbo
+ * frames in the Rx queues (length of the current frame is not
+ * taken into account when making the taildrop decision)
+ */
+#define DPAA2_ETH_TAILDROP_THRESH (64 * 1024)
+
+/* Buffer quota per queue. Must be large enough such that for minimum sized
+ * frames taildrop kicks in before the bpool gets depleted, so we compute
+ * how many 64B frames fit inside the taildrop threshold and add a margin
+ * to accommodate the buffer refill delay.
+ */
+#define DPAA2_ETH_MAX_FRAMES_PER_QUEUE (DPAA2_ETH_TAILDROP_THRESH / 64)
+#define DPAA2_ETH_NUM_BUFS_PER_CH (DPAA2_ETH_MAX_FRAMES_PER_QUEUE + 256)
+#define DPAA2_ETH_REFILL_THRESH(priv) \
+ ((priv)->max_bufs_per_ch - DPAA2_ETH_BUFS_PER_CMD)
+
+/* Global buffer quota in case flow control is enabled */
+#define DPAA2_ETH_NUM_BUFS_FC 256
+
+/* Hardware requires alignment for ingress/egress buffer addresses */
+#define DPAA2_ETH_TX_BUF_ALIGN 64
+
+/* Due to a limitation in WRIOP 1.0.0, the RX buffer data must be aligned
+ * to 256B. For newer revisions, the requirement is only for 64B alignment
+ */
+#define DPAA2_ETH_RX_BUF_ALIGN_REV1 256
+#define DPAA2_ETH_RX_BUF_ALIGN 64
+
+#define DPAA2_ETH_RX_BUF_SIZE 2048
+#define DPAA2_ETH_SKB_SIZE \
+ (DPAA2_ETH_RX_BUF_SIZE + SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
+
+/* PTP nominal frequency 1GHz */
+#define DPAA2_PTP_NOMINAL_FREQ_PERIOD_NS 1
+
+/* Hardware annotation area in RX/TX buffers */
+#define DPAA2_ETH_RX_HWA_SIZE 64
+#define DPAA2_ETH_TX_HWA_SIZE 128
+
+/* We are accommodating a skb backpointer and some S/G info
+ * in the frame's software annotation. The hardware
+ * options are either 0 or 64, so we choose the latter.
+ */
+#define DPAA2_ETH_SWA_SIZE 64
+
+/* We store different information in the software annotation area of a Tx frame
+ * based on what type of frame it is
+ */
+enum dpaa2_eth_swa_type {
+ DPAA2_ETH_SWA_SINGLE,
+ DPAA2_ETH_SWA_SG,
+};
+
+/* Must keep this struct smaller than DPAA2_ETH_SWA_SIZE */
+struct dpaa2_eth_swa {
+ enum dpaa2_eth_swa_type type;
+ union {
+ struct {
+ struct sk_buff *skb;
+ } single;
+ struct {
+ struct sk_buff *skb;
+ struct scatterlist *scl;
+ int num_sg;
+ int sgt_size;
+ } sg;
+ };
+};
+
+/* Annotation valid bits in FD FRC */
+#define DPAA2_FD_FRC_FASV 0x8000
+#define DPAA2_FD_FRC_FAEADV 0x4000
+#define DPAA2_FD_FRC_FAPRV 0x2000
+#define DPAA2_FD_FRC_FAIADV 0x1000
+#define DPAA2_FD_FRC_FASWOV 0x0800
+#define DPAA2_FD_FRC_FAICFDV 0x0400
+
+#define DPAA2_FD_RX_ERR_MASK (FD_CTRL_SBE | FD_CTRL_FAERR)
+#define DPAA2_FD_TX_ERR_MASK (FD_CTRL_UFD | \
+ FD_CTRL_SBE | \
+ FD_CTRL_FSE | \
+ FD_CTRL_FAERR)
+
+/* Annotation bits in FD CTRL */
+#define DPAA2_FD_CTRL_ASAL 0x00020000 /* ASAL = 128 */
+
+/* Frame annotation status */
+struct dpaa2_fas {
+ u8 reserved;
+ u8 ppid;
+ __le16 ifpid;
+ __le32 status;
+};
+
+/* Frame annotation status word is located in the first 8 bytes
+ * of the buffer's hardware annoatation area
+ */
+#define DPAA2_FAS_OFFSET 0
+#define DPAA2_FAS_SIZE (sizeof(struct dpaa2_fas))
+
+/* Timestamp is located in the next 8 bytes of the buffer's
+ * hardware annotation area
+ */
+#define DPAA2_TS_OFFSET 0x8
+
+/* Frame annotation egress action descriptor */
+#define DPAA2_FAEAD_OFFSET 0x58
+
+struct dpaa2_faead {
+ __le32 conf_fqid;
+ __le32 ctrl;
+};
+
+#define DPAA2_FAEAD_A2V 0x20000000
+#define DPAA2_FAEAD_A4V 0x08000000
+#define DPAA2_FAEAD_UPDV 0x00001000
+#define DPAA2_FAEAD_EBDDV 0x00002000
+#define DPAA2_FAEAD_UPD 0x00000010
+
+/* Accessors for the hardware annotation fields that we use */
+static inline void *dpaa2_get_hwa(void *buf_addr, bool swa)
+{
+ return buf_addr + (swa ? DPAA2_ETH_SWA_SIZE : 0);
+}
+
+static inline struct dpaa2_fas *dpaa2_get_fas(void *buf_addr, bool swa)
+{
+ return dpaa2_get_hwa(buf_addr, swa) + DPAA2_FAS_OFFSET;
+}
+
+static inline u64 *dpaa2_get_ts(void *buf_addr, bool swa)
+{
+ return dpaa2_get_hwa(buf_addr, swa) + DPAA2_TS_OFFSET;
+}
+
+static inline struct dpaa2_faead *dpaa2_get_faead(void *buf_addr, bool swa)
+{
+ return dpaa2_get_hwa(buf_addr, swa) + DPAA2_FAEAD_OFFSET;
+}
+
+/* Error and status bits in the frame annotation status word */
+/* Debug frame, otherwise supposed to be discarded */
+#define DPAA2_FAS_DISC 0x80000000
+/* MACSEC frame */
+#define DPAA2_FAS_MS 0x40000000
+#define DPAA2_FAS_PTP 0x08000000
+/* Ethernet multicast frame */
+#define DPAA2_FAS_MC 0x04000000
+/* Ethernet broadcast frame */
+#define DPAA2_FAS_BC 0x02000000
+#define DPAA2_FAS_KSE 0x00040000
+#define DPAA2_FAS_EOFHE 0x00020000
+#define DPAA2_FAS_MNLE 0x00010000
+#define DPAA2_FAS_TIDE 0x00008000
+#define DPAA2_FAS_PIEE 0x00004000
+/* Frame length error */
+#define DPAA2_FAS_FLE 0x00002000
+/* Frame physical error */
+#define DPAA2_FAS_FPE 0x00001000
+#define DPAA2_FAS_PTE 0x00000080
+#define DPAA2_FAS_ISP 0x00000040
+#define DPAA2_FAS_PHE 0x00000020
+#define DPAA2_FAS_BLE 0x00000010
+/* L3 csum validation performed */
+#define DPAA2_FAS_L3CV 0x00000008
+/* L3 csum error */
+#define DPAA2_FAS_L3CE 0x00000004
+/* L4 csum validation performed */
+#define DPAA2_FAS_L4CV 0x00000002
+/* L4 csum error */
+#define DPAA2_FAS_L4CE 0x00000001
+/* Possible errors on the ingress path */
+#define DPAA2_FAS_RX_ERR_MASK (DPAA2_FAS_KSE | \
+ DPAA2_FAS_EOFHE | \
+ DPAA2_FAS_MNLE | \
+ DPAA2_FAS_TIDE | \
+ DPAA2_FAS_PIEE | \
+ DPAA2_FAS_FLE | \
+ DPAA2_FAS_FPE | \
+ DPAA2_FAS_PTE | \
+ DPAA2_FAS_ISP | \
+ DPAA2_FAS_PHE | \
+ DPAA2_FAS_BLE | \
+ DPAA2_FAS_L3CE | \
+ DPAA2_FAS_L4CE)
+
+/* Time in milliseconds between link state updates */
+#define DPAA2_ETH_LINK_STATE_REFRESH 1000
+
+/* Number of times to retry a frame enqueue before giving up.
+ * Value determined empirically, in order to minimize the number
+ * of frames dropped on Tx
+ */
+#define DPAA2_ETH_ENQUEUE_RETRIES 10
+
+/* Tx congestion entry & exit thresholds, in number of bytes.
+ * We allow a maximum of 512KB worth of frames pending processing on the Tx
+ * queues of an interface
+ */
+#define DPAA2_ETH_TX_CONG_ENTRY_THRESH (512 * 1024)
+#define DPAA2_ETH_TX_CONG_EXIT_THRESH \
+ (DPAA2_ETH_TX_CONG_ENTRY_THRESH * 9 / 10)
+
+/* Driver statistics, other than those in struct rtnl_link_stats64.
+ * These are usually collected per-CPU and aggregated by ethtool.
+ */
+struct dpaa2_eth_drv_stats {
+ __u64 tx_conf_frames;
+ __u64 tx_conf_bytes;
+ __u64 tx_sg_frames;
+ __u64 tx_sg_bytes;
+ __u64 tx_reallocs;
+ __u64 rx_sg_frames;
+ __u64 rx_sg_bytes;
+ /* Enqueues retried due to portal busy */
+ __u64 tx_portal_busy;
+};
+
+/* Per-FQ statistics */
+struct dpaa2_eth_fq_stats {
+ /* Number of frames received on this queue */
+ __u64 frames;
+ /* Number of times this queue entered congestion */
+ __u64 congestion_entry;
+};
+
+/* Per-channel statistics */
+struct dpaa2_eth_ch_stats {
+ /* Volatile dequeues retried due to portal busy */
+ __u64 dequeue_portal_busy;
+ /* Number of CDANs; useful to estimate avg NAPI len */
+ __u64 cdan;
+ /* Number of frames received on queues from this channel */
+ __u64 frames;
+ /* Pull errors */
+ __u64 pull_err;
+};
+
+#define DPAA2_ETH_MAX_TCS 8
+
+/* Maximum number of queues associated with a DPNI */
+#define DPAA2_ETH_MAX_RX_QUEUES (DPNI_MAX_DIST_SIZE * DPAA2_ETH_MAX_TCS)
+#define DPAA2_ETH_MAX_TX_QUEUES DPNI_MAX_SENDERS
+#define DPAA2_ETH_MAX_RX_ERR_QUEUES 1
+#define DPAA2_ETH_MAX_QUEUES (DPAA2_ETH_MAX_RX_QUEUES + \
+ DPAA2_ETH_MAX_TX_QUEUES + \
+ DPAA2_ETH_MAX_RX_ERR_QUEUES)
+
+#define DPAA2_ETH_MAX_DPCONS 16
+
+enum dpaa2_eth_fq_type {
+ DPAA2_RX_FQ = 0,
+ DPAA2_TX_CONF_FQ,
+ DPAA2_RX_ERR_FQ
+};
+
+struct dpaa2_eth_priv;
+
+struct dpaa2_eth_fq {
+ u32 fqid;
+ u32 tx_qdbin;
+ u16 flowid;
+ u8 tc;
+ int target_cpu;
+ struct dpaa2_eth_channel *channel;
+ enum dpaa2_eth_fq_type type;
+
+ void (*consume)(struct dpaa2_eth_priv *,
+ struct dpaa2_eth_channel *,
+ const struct dpaa2_fd *,
+ struct napi_struct *,
+ u16 queue_id);
+ struct dpaa2_eth_fq_stats stats;
+};
+
+struct dpaa2_eth_channel {
+ struct dpaa2_io_notification_ctx nctx;
+ struct fsl_mc_device *dpcon;
+ int dpcon_id;
+ int ch_id;
+ struct napi_struct napi;
+ struct dpaa2_io *dpio;
+ struct dpaa2_io_store *store;
+ struct dpaa2_eth_priv *priv;
+ int buf_count;
+ struct dpaa2_eth_ch_stats stats;
+ struct bpf_prog *xdp_prog;
+ u64 rel_buf_array[DPAA2_ETH_BUFS_PER_CMD];
+ u8 rel_buf_cnt;
+};
+
+struct dpaa2_eth_cls_rule {
+ struct ethtool_rx_flow_spec fs;
+ bool in_use;
+};
+
+struct dpaa2_eth_dist_fields {
+ u64 rxnfc_field;
+ enum net_prot cls_prot;
+ int cls_field;
+ int offset;
+ int size;
+ u32 id;
+};
+
+/* Driver private data */
+struct dpaa2_eth_priv {
+ struct net_device *net_dev;
+ /* Standard statistics */
+ struct rtnl_link_stats64 __percpu *percpu_stats;
+ /* Extra stats, in addition to the ones known by the kernel */
+ struct dpaa2_eth_drv_stats __percpu *percpu_extras;
+ bool ts_tx_en; /* Tx timestamping enabled */
+ bool ts_rx_en; /* Rx timestamping enabled */
+ u16 tx_data_offset;
+ u16 bpid;
+ u16 tx_qdid;
+ u16 rx_buf_align;
+ struct iommu_domain *iommu_domain;
+ int max_bufs_per_ch;
+ int refill_thresh;
+ bool has_xdp_prog;
+
+ void *cscn_mem; /* Tx congestion notifications are written here */
+ void *cscn_unaligned;
+ dma_addr_t cscn_dma;
+
+ u8 num_fqs;
+ struct dpaa2_eth_fq fq[DPAA2_ETH_MAX_QUEUES];
+
+ u8 num_channels;
+ struct dpaa2_eth_channel *channel[DPAA2_ETH_MAX_DPCONS];
+
+ struct dpni_attr dpni_attrs;
+ u16 dpni_ver_major;
+ u16 dpni_ver_minor;
+ struct fsl_mc_device *dpbp_dev;
+
+ struct fsl_mc_io *mc_io;
+ /* Cores which have an affine DPIO/DPCON.
+ * This is the cpu set on which Rx and Tx conf frames are processed
+ */
+ struct cpumask dpio_cpumask;
+
+ u16 mc_token;
+
+ struct dpni_link_state link_state;
+ bool do_link_poll;
+ struct task_struct *poll_thread;
+
+ /* Rx distribution (hash and flow steering) header fields
+ * supported by the driver
+ */
+ struct dpaa2_eth_dist_fields *dist_fields;
+ u8 num_dist_fields;
+ /* enabled ethtool hashing bits */
+ u64 rx_hash_fields;
+#ifdef CONFIG_FSL_DPAA2_ETH_DEBUGFS
+ struct dpaa2_debugfs dbg;
+#endif
+ /* array of classification rules */
+ struct dpaa2_eth_cls_rule *cls_rule;
+ struct dpni_tx_shaping_cfg shaping_cfg;
+
+ u8 dcbx_mode;
+ struct ieee_pfc pfc;
+ bool vlan_clsf_set;
+ bool tx_pause_frames;
+
+ bool ceetm_en;
+};
+
+enum dpaa2_eth_rx_dist {
+ DPAA2_ETH_RX_DIST_HASH,
+ DPAA2_ETH_RX_DIST_FS,
+ DPAA2_ETH_RX_DIST_LEGACY
+};
+
+/* Supported Rx distribution field ids */
+#define DPAA2_ETH_DIST_ETHSRC BIT(0)
+#define DPAA2_ETH_DIST_ETHDST BIT(1)
+#define DPAA2_ETH_DIST_ETHTYPE BIT(2)
+#define DPAA2_ETH_DIST_VLAN BIT(3)
+#define DPAA2_ETH_DIST_IPSRC BIT(4)
+#define DPAA2_ETH_DIST_IPDST BIT(5)
+#define DPAA2_ETH_DIST_IPPROTO BIT(6)
+#define DPAA2_ETH_DIST_L4SRC BIT(7)
+#define DPAA2_ETH_DIST_L4DST BIT(8)
+#define DPAA2_ETH_DIST_ALL (~0U)
+
+/* Default Rx hash key */
+#define DPAA2_ETH_DIST_DEFAULT_HASH \
+ (DPAA2_ETH_DIST_IPPROTO | \
+ DPAA2_ETH_DIST_IPSRC | DPAA2_ETH_DIST_IPDST | \
+ DPAA2_ETH_DIST_L4SRC | DPAA2_ETH_DIST_L4DST)
+
+#define dpaa2_eth_hash_enabled(priv) \
+ ((priv)->dpni_attrs.num_queues > 1)
+
+#define dpaa2_eth_fs_enabled(priv) \
+ (!((priv)->dpni_attrs.options & DPNI_OPT_NO_FS))
+
+#define dpaa2_eth_fs_mask_enabled(priv) \
+ ((priv)->dpni_attrs.options & DPNI_OPT_HAS_KEY_MASKING)
+
+#define dpaa2_eth_fs_count(priv) \
+ ((priv)->dpni_attrs.fs_entries)
+
+/* Required by struct dpni_rx_tc_dist_cfg::key_cfg_iova */
+#define DPAA2_CLASSIFIER_DMA_SIZE 256
+
+extern const struct ethtool_ops dpaa2_ethtool_ops;
+extern const char dpaa2_eth_drv_version[];
+
+static inline int dpaa2_eth_cmp_dpni_ver(struct dpaa2_eth_priv *priv,
+ u16 ver_major, u16 ver_minor)
+{
+ if (priv->dpni_ver_major == ver_major)
+ return priv->dpni_ver_minor - ver_minor;
+ return priv->dpni_ver_major - ver_major;
+}
+
+#define DPNI_DIST_KEY_VER_MAJOR 7
+#define DPNI_DIST_KEY_VER_MINOR 5
+
+static inline bool dpaa2_eth_has_legacy_dist(struct dpaa2_eth_priv *priv)
+{
+ return (dpaa2_eth_cmp_dpni_ver(priv, DPNI_DIST_KEY_VER_MAJOR,
+ DPNI_DIST_KEY_VER_MINOR) < 0);
+}
+
+/* Hardware only sees DPAA2_ETH_RX_BUF_SIZE, but the skb built around
+ * the buffer also needs space for its shared info struct, and we need
+ * to allocate enough to accommodate hardware alignment restrictions
+ */
+static inline unsigned int dpaa2_eth_buf_raw_size(struct dpaa2_eth_priv *priv)
+{
+ return DPAA2_ETH_SKB_SIZE + priv->rx_buf_align;
+}
+
+/* Total headroom needed by the hardware in Tx frame buffers */
+static inline unsigned int
+dpaa2_eth_needed_headroom(struct dpaa2_eth_priv *priv, struct sk_buff *skb)
+{
+ unsigned int headroom = DPAA2_ETH_SWA_SIZE;
+
+ /* If we don't have an skb (e.g. XDP buffer), we only need space for
+ * the software annotation area
+ */
+ if (!skb)
+ return headroom;
+
+ /* For non-linear skbs we have no headroom requirement, as we build a
+ * SG frame with a newly allocated SGT buffer
+ */
+ if (skb_is_nonlinear(skb))
+ return 0;
+
+ /* If we have Tx timestamping, need 128B hardware annotation */
+ if (priv->ts_tx_en && skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)
+ headroom += DPAA2_ETH_TX_HWA_SIZE;
+
+ return headroom;
+}
+
+/* Extra headroom space requested to hardware, in order to make sure there's
+ * no realloc'ing in forwarding scenarios. We need to reserve enough space
+ * such that we can accommodate the maximum required Tx offset and alignment
+ * in the ingress frame buffer
+ */
+static inline unsigned int dpaa2_eth_rx_headroom(struct dpaa2_eth_priv *priv)
+{
+ return priv->tx_data_offset + DPAA2_ETH_TX_BUF_ALIGN -
+ DPAA2_ETH_RX_HWA_SIZE;
+}
+
+static inline int dpaa2_eth_queue_count(struct dpaa2_eth_priv *priv)
+{
+ return priv->dpni_attrs.num_queues;
+}
+
+static inline int dpaa2_eth_tc_count(struct dpaa2_eth_priv *priv)
+{
+ return priv->dpni_attrs.num_tcs;
+}
+
+static inline bool dpaa2_eth_is_pfc_enabled(struct dpaa2_eth_priv *priv,
+ int traffic_class)
+{
+ return priv->pfc.pfc_en & (1 << traffic_class);
+}
+
+enum dpaa2_eth_td_cfg {
+ DPAA2_ETH_TD_NONE,
+ DPAA2_ETH_TD_QUEUE,
+ DPAA2_ETH_TD_GROUP
+};
+
+static inline enum dpaa2_eth_td_cfg
+dpaa2_eth_get_td_type(struct dpaa2_eth_priv *priv)
+{
+ bool pfc_enabled = !!(priv->pfc.pfc_en);
+
+ if (pfc_enabled)
+ return DPAA2_ETH_TD_GROUP;
+ else if (priv->tx_pause_frames)
+ return DPAA2_ETH_TD_NONE;
+ else
+ return DPAA2_ETH_TD_QUEUE;
+}
+
+static inline int dpaa2_eth_ch_count(struct dpaa2_eth_priv *priv)
+{
+ return 1;
+}
+
+void check_cls_support(struct dpaa2_eth_priv *priv);
+
+int set_rx_taildrop(struct dpaa2_eth_priv *priv);
+
+int dpaa2_eth_set_dist_key(struct dpaa2_eth_priv *priv,
+ enum dpaa2_eth_rx_dist type, u32 key_fields);
+
+#endif /* __DPAA2_H */
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c
@@ -0,0 +1,878 @@
+/* Copyright 2014-2016 Freescale Semiconductor Inc.
+ * Copyright 2016-2017 NXP
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "dpni.h" /* DPNI_LINK_OPT_* */
+#include "dpaa2-eth.h"
+
+/* To be kept in sync with DPNI statistics */
+static char dpaa2_ethtool_stats[][ETH_GSTRING_LEN] = {
+ "[hw] rx frames",
+ "[hw] rx bytes",
+ "[hw] rx mcast frames",
+ "[hw] rx mcast bytes",
+ "[hw] rx bcast frames",
+ "[hw] rx bcast bytes",
+ "[hw] tx frames",
+ "[hw] tx bytes",
+ "[hw] tx mcast frames",
+ "[hw] tx mcast bytes",
+ "[hw] tx bcast frames",
+ "[hw] tx bcast bytes",
+ "[hw] rx filtered frames",
+ "[hw] rx discarded frames",
+ "[hw] rx nobuffer discards",
+ "[hw] tx discarded frames",
+ "[hw] tx confirmed frames",
+};
+
+#define DPAA2_ETH_NUM_STATS ARRAY_SIZE(dpaa2_ethtool_stats)
+
+static char dpaa2_ethtool_extras[][ETH_GSTRING_LEN] = {
+ /* per-cpu stats */
+ "[drv] tx conf frames",
+ "[drv] tx conf bytes",
+ "[drv] tx sg frames",
+ "[drv] tx sg bytes",
+ "[drv] tx realloc frames",
+ "[drv] rx sg frames",
+ "[drv] rx sg bytes",
+ "[drv] enqueue portal busy",
+ /* Channel stats */
+ "[drv] dequeue portal busy",
+ "[drv] channel pull errors",
+ "[drv] cdan",
+ "[drv] tx congestion state",
+#ifdef CONFIG_FSL_QBMAN_DEBUG
+ /* FQ stats */
+ "rx pending frames",
+ "rx pending bytes",
+ "tx conf pending frames",
+ "tx conf pending bytes",
+ "buffer count"
+#endif
+};
+
+#define DPAA2_ETH_NUM_EXTRA_STATS ARRAY_SIZE(dpaa2_ethtool_extras)
+
+static void dpaa2_eth_get_drvinfo(struct net_device *net_dev,
+ struct ethtool_drvinfo *drvinfo)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+
+ strlcpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
+ strlcpy(drvinfo->version, dpaa2_eth_drv_version,
+ sizeof(drvinfo->version));
+
+ snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+ "%u.%u", priv->dpni_ver_major, priv->dpni_ver_minor);
+
+ strlcpy(drvinfo->bus_info, dev_name(net_dev->dev.parent->parent),
+ sizeof(drvinfo->bus_info));
+}
+
+static int
+dpaa2_eth_get_link_ksettings(struct net_device *net_dev,
+ struct ethtool_link_ksettings *link_settings)
+{
+ struct dpni_link_state state = {0};
+ int err = 0;
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+
+ err = dpni_get_link_state(priv->mc_io, 0, priv->mc_token, &state);
+ if (err) {
+ netdev_err(net_dev, "ERROR %d getting link state\n", err);
+ goto out;
+ }
+
+ /* At the moment, we have no way of interrogating the DPMAC
+ * from the DPNI side - and for that matter there may exist
+ * no DPMAC at all. So for now we just don't report anything
+ * beyond the DPNI attributes.
+ */
+ if (state.options & DPNI_LINK_OPT_AUTONEG)
+ link_settings->base.autoneg = AUTONEG_ENABLE;
+ if (!(state.options & DPNI_LINK_OPT_HALF_DUPLEX))
+ link_settings->base.duplex = DUPLEX_FULL;
+ link_settings->base.speed = state.rate;
+
+out:
+ return err;
+}
+
+#define DPNI_DYNAMIC_LINK_SET_VER_MAJOR 7
+#define DPNI_DYNAMIC_LINK_SET_VER_MINOR 1
+static int
+dpaa2_eth_set_link_ksettings(struct net_device *net_dev,
+ const struct ethtool_link_ksettings *link_settings)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ struct dpni_link_state state = {0};
+ struct dpni_link_cfg cfg = {0};
+ int err = 0;
+
+ /* If using an older MC version, the DPNI must be down
+ * in order to be able to change link settings. Taking steps to let
+ * the user know that.
+ */
+ if (dpaa2_eth_cmp_dpni_ver(priv, DPNI_DYNAMIC_LINK_SET_VER_MAJOR,
+ DPNI_DYNAMIC_LINK_SET_VER_MINOR) < 0) {
+ if (netif_running(net_dev)) {
+ netdev_info(net_dev, "Interface must be brought down first.\n");
+ return -EACCES;
+ }
+ }
+
+ /* Need to interrogate link state to get flow control params */
+ err = dpni_get_link_state(priv->mc_io, 0, priv->mc_token, &state);
+ if (err) {
+ netdev_err(net_dev, "Error getting link state\n");
+ goto out;
+ }
+
+ cfg.options = state.options;
+ cfg.rate = link_settings->base.speed;
+ if (link_settings->base.autoneg == AUTONEG_ENABLE)
+ cfg.options |= DPNI_LINK_OPT_AUTONEG;
+ else
+ cfg.options &= ~DPNI_LINK_OPT_AUTONEG;
+ if (link_settings->base.duplex == DUPLEX_HALF)
+ cfg.options |= DPNI_LINK_OPT_HALF_DUPLEX;
+ else
+ cfg.options &= ~DPNI_LINK_OPT_HALF_DUPLEX;
+
+ err = dpni_set_link_cfg(priv->mc_io, 0, priv->mc_token, &cfg);
+ if (err)
+ /* ethtool will be loud enough if we return an error; no point
+ * in putting our own error message on the console by default
+ */
+ netdev_dbg(net_dev, "ERROR %d setting link cfg\n", err);
+
+out:
+ return err;
+}
+
+static void dpaa2_eth_get_pauseparam(struct net_device *net_dev,
+ struct ethtool_pauseparam *pause)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ struct dpni_link_state state = {0};
+ int err;
+
+ err = dpni_get_link_state(priv->mc_io, 0, priv->mc_token, &state);
+ if (err)
+ netdev_dbg(net_dev, "Error getting link state\n");
+
+ /* Report general port autonegotiation status */
+ pause->autoneg = !!(state.options & DPNI_LINK_OPT_AUTONEG);
+ pause->rx_pause = !!(state.options & DPNI_LINK_OPT_PAUSE);
+ pause->tx_pause = pause->rx_pause ^
+ !!(state.options & DPNI_LINK_OPT_ASYM_PAUSE);
+}
+
+static int dpaa2_eth_set_pauseparam(struct net_device *net_dev,
+ struct ethtool_pauseparam *pause)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ struct dpni_link_state state = {0};
+ struct dpni_link_cfg cfg = {0};
+ u32 current_tx_pause;
+ int err = 0;
+
+ err = dpni_get_link_state(priv->mc_io, 0, priv->mc_token, &state);
+ if (err) {
+ netdev_dbg(net_dev, "Error getting link state\n");
+ goto out;
+ }
+
+ cfg.rate = state.rate;
+ cfg.options = state.options;
+ current_tx_pause = !!(cfg.options & DPNI_LINK_OPT_PAUSE) ^
+ !!(cfg.options & DPNI_LINK_OPT_ASYM_PAUSE);
+
+ /* We don't support changing pause frame autonegotiation separately
+ * from general port autoneg
+ */
+ if (pause->autoneg != !!(state.options & DPNI_LINK_OPT_AUTONEG))
+ netdev_warn(net_dev,
+ "Cannot change pause frame autoneg separately\n");
+
+ if (pause->rx_pause)
+ cfg.options |= DPNI_LINK_OPT_PAUSE;
+ else
+ cfg.options &= ~DPNI_LINK_OPT_PAUSE;
+
+ if (pause->rx_pause ^ pause->tx_pause)
+ cfg.options |= DPNI_LINK_OPT_ASYM_PAUSE;
+ else
+ cfg.options &= ~DPNI_LINK_OPT_ASYM_PAUSE;
+
+ err = dpni_set_link_cfg(priv->mc_io, 0, priv->mc_token, &cfg);
+ if (err) {
+ netdev_dbg(net_dev, "Error setting link\n");
+ goto out;
+ }
+
+ /* Enable/disable Rx FQ taildrop if Tx pause frames have changed */
+ if (current_tx_pause == pause->tx_pause)
+ goto out;
+
+ priv->tx_pause_frames = pause->tx_pause;
+ err = set_rx_taildrop(priv);
+ if (err)
+ netdev_dbg(net_dev, "Error configuring taildrop\n");
+
+out:
+ return err;
+}
+
+static void dpaa2_eth_get_strings(struct net_device *netdev, u32 stringset,
+ u8 *data)
+{
+ u8 *p = data;
+ int i;
+
+ switch (stringset) {
+ case ETH_SS_STATS:
+ for (i = 0; i < DPAA2_ETH_NUM_STATS; i++) {
+ strlcpy(p, dpaa2_ethtool_stats[i], ETH_GSTRING_LEN);
+ p += ETH_GSTRING_LEN;
+ }
+ for (i = 0; i < DPAA2_ETH_NUM_EXTRA_STATS; i++) {
+ strlcpy(p, dpaa2_ethtool_extras[i], ETH_GSTRING_LEN);
+ p += ETH_GSTRING_LEN;
+ }
+ break;
+ }
+}
+
+static int dpaa2_eth_get_sset_count(struct net_device *net_dev, int sset)
+{
+ switch (sset) {
+ case ETH_SS_STATS: /* ethtool_get_stats(), ethtool_get_drvinfo() */
+ return DPAA2_ETH_NUM_STATS + DPAA2_ETH_NUM_EXTRA_STATS;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+/** Fill in hardware counters, as returned by MC.
+ */
+static void dpaa2_eth_get_ethtool_stats(struct net_device *net_dev,
+ struct ethtool_stats *stats,
+ u64 *data)
+{
+ int i = 0;
+ int j, k, err;
+ int num_cnt;
+ union dpni_statistics dpni_stats;
+
+#ifdef CONFIG_FSL_QBMAN_DEBUG
+ u32 fcnt, bcnt;
+ u32 fcnt_rx_total = 0, fcnt_tx_total = 0;
+ u32 bcnt_rx_total = 0, bcnt_tx_total = 0;
+ u32 buf_cnt;
+#endif
+ u64 cdan = 0;
+ u64 portal_busy = 0, pull_err = 0;
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ struct dpaa2_eth_drv_stats *extras;
+ struct dpaa2_eth_ch_stats *ch_stats;
+
+ memset(data, 0,
+ sizeof(u64) * (DPAA2_ETH_NUM_STATS + DPAA2_ETH_NUM_EXTRA_STATS));
+
+ /* Print standard counters, from DPNI statistics */
+ for (j = 0; j <= 2; j++) {
+ err = dpni_get_statistics(priv->mc_io, 0, priv->mc_token,
+ j, 0, &dpni_stats);
+ if (err != 0)
+ netdev_warn(net_dev, "dpni_get_stats(%d) failed\n", j);
+ switch (j) {
+ case 0:
+ num_cnt = sizeof(dpni_stats.page_0) / sizeof(u64);
+ break;
+ case 1:
+ num_cnt = sizeof(dpni_stats.page_1) / sizeof(u64);
+ break;
+ case 2:
+ num_cnt = sizeof(dpni_stats.page_2) / sizeof(u64);
+ break;
+ }
+ for (k = 0; k < num_cnt; k++)
+ *(data + i++) = dpni_stats.raw.counter[k];
+ }
+
+ /* Print per-cpu extra stats */
+ for_each_online_cpu(k) {
+ extras = per_cpu_ptr(priv->percpu_extras, k);
+ for (j = 0; j < sizeof(*extras) / sizeof(__u64); j++)
+ *((__u64 *)data + i + j) += *((__u64 *)extras + j);
+ }
+ i += j;
+
+ for (j = 0; j < priv->num_channels; j++) {
+ ch_stats = &priv->channel[j]->stats;
+ cdan += ch_stats->cdan;
+ portal_busy += ch_stats->dequeue_portal_busy;
+ pull_err += ch_stats->pull_err;
+ }
+
+ *(data + i++) = portal_busy;
+ *(data + i++) = pull_err;
+ *(data + i++) = cdan;
+
+ *(data + i++) = dpaa2_cscn_state_congested(priv->cscn_mem);
+
+#ifdef CONFIG_FSL_QBMAN_DEBUG
+ for (j = 0; j < priv->num_fqs; j++) {
+ /* Print FQ instantaneous counts */
+ err = dpaa2_io_query_fq_count(NULL, priv->fq[j].fqid,
+ &fcnt, &bcnt);
+ if (err) {
+ netdev_warn(net_dev, "FQ query error %d", err);
+ return;
+ }
+
+ if (priv->fq[j].type == DPAA2_TX_CONF_FQ) {
+ fcnt_tx_total += fcnt;
+ bcnt_tx_total += bcnt;
+ } else {
+ fcnt_rx_total += fcnt;
+ bcnt_rx_total += bcnt;
+ }
+ }
+
+ *(data + i++) = fcnt_rx_total;
+ *(data + i++) = bcnt_rx_total;
+ *(data + i++) = fcnt_tx_total;
+ *(data + i++) = bcnt_tx_total;
+
+ err = dpaa2_io_query_bp_count(NULL, priv->bpid, &buf_cnt);
+ if (err) {
+ netdev_warn(net_dev, "Buffer count query error %d\n", err);
+ return;
+ }
+ *(data + i++) = buf_cnt;
+#endif
+}
+
+static int cls_key_off(struct dpaa2_eth_priv *priv, int prot, int field)
+{
+ int i, off = 0;
+
+ for (i = 0; i < priv->num_dist_fields; i++) {
+ if (priv->dist_fields[i].cls_prot == prot &&
+ priv->dist_fields[i].cls_field == field)
+ return off;
+ off += priv->dist_fields[i].size;
+ }
+
+ return -1;
+}
+
+static u8 cls_key_size(struct dpaa2_eth_priv *priv)
+{
+ u8 i, size = 0;
+
+ for (i = 0; i < priv->num_dist_fields; i++)
+ size += priv->dist_fields[i].size;
+
+ return size;
+}
+
+void check_cls_support(struct dpaa2_eth_priv *priv)
+{
+ u8 key_size = cls_key_size(priv);
+ struct device *dev = priv->net_dev->dev.parent;
+
+ if (dpaa2_eth_hash_enabled(priv)) {
+ if (priv->dpni_attrs.fs_key_size < key_size) {
+ dev_info(dev, "max_dist_key_size = %d, expected %d. Hashing and steering are disabled\n",
+ priv->dpni_attrs.fs_key_size,
+ key_size);
+ goto disable_fs;
+ }
+ if (priv->num_dist_fields > DPKG_MAX_NUM_OF_EXTRACTS) {
+ dev_info(dev, "Too many key fields (max = %d). Hashing and steering are disabled\n",
+ DPKG_MAX_NUM_OF_EXTRACTS);
+ goto disable_fs;
+ }
+ }
+
+ if (dpaa2_eth_fs_enabled(priv)) {
+ if (!dpaa2_eth_hash_enabled(priv)) {
+ dev_info(dev, "Insufficient queues. Steering is disabled\n");
+ goto disable_fs;
+ }
+
+ if (!dpaa2_eth_fs_mask_enabled(priv)) {
+ dev_info(dev, "Key masks not supported. Steering is disabled\n");
+ goto disable_fs;
+ }
+ }
+
+ return;
+
+disable_fs:
+ priv->dpni_attrs.options |= DPNI_OPT_NO_FS;
+ priv->dpni_attrs.options &= ~DPNI_OPT_HAS_KEY_MASKING;
+}
+
+static int prep_l4_rule(struct dpaa2_eth_priv *priv,
+ struct ethtool_tcpip4_spec *l4_value,
+ struct ethtool_tcpip4_spec *l4_mask,
+ void *key, void *mask, u8 l4_proto)
+{
+ int offset;
+
+ if (l4_mask->tos) {
+ netdev_err(priv->net_dev, "ToS is not supported for IPv4 L4\n");
+ return -EOPNOTSUPP;
+ }
+
+ if (l4_mask->ip4src) {
+ offset = cls_key_off(priv, NET_PROT_IP, NH_FLD_IP_SRC);
+ *(u32 *)(key + offset) = l4_value->ip4src;
+ *(u32 *)(mask + offset) = l4_mask->ip4src;
+ }
+
+ if (l4_mask->ip4dst) {
+ offset = cls_key_off(priv, NET_PROT_IP, NH_FLD_IP_DST);
+ *(u32 *)(key + offset) = l4_value->ip4dst;
+ *(u32 *)(mask + offset) = l4_mask->ip4dst;
+ }
+
+ if (l4_mask->psrc) {
+ offset = cls_key_off(priv, NET_PROT_UDP, NH_FLD_UDP_PORT_SRC);
+ *(u32 *)(key + offset) = l4_value->psrc;
+ *(u32 *)(mask + offset) = l4_mask->psrc;
+ }
+
+ if (l4_mask->pdst) {
+ offset = cls_key_off(priv, NET_PROT_UDP, NH_FLD_UDP_PORT_DST);
+ *(u32 *)(key + offset) = l4_value->pdst;
+ *(u32 *)(mask + offset) = l4_mask->pdst;
+ }
+
+ /* Only apply the rule for the user-specified L4 protocol
+ * and if ethertype matches IPv4
+ */
+ offset = cls_key_off(priv, NET_PROT_ETH, NH_FLD_ETH_TYPE);
+ *(u16 *)(key + offset) = htons(ETH_P_IP);
+ *(u16 *)(mask + offset) = 0xFFFF;
+
+ offset = cls_key_off(priv, NET_PROT_IP, NH_FLD_IP_PROTO);
+ *(u8 *)(key + offset) = l4_proto;
+ *(u8 *)(mask + offset) = 0xFF;
+
+ /* TODO: check IP version */
+
+ return 0;
+}
+
+static int prep_eth_rule(struct dpaa2_eth_priv *priv,
+ struct ethhdr *eth_value, struct ethhdr *eth_mask,
+ void *key, void *mask)
+{
+ int offset;
+
+ if (eth_mask->h_proto) {
+ netdev_err(priv->net_dev, "Ethertype is not supported!\n");
+ return -EOPNOTSUPP;
+ }
+
+ if (!is_zero_ether_addr(eth_mask->h_source)) {
+ offset = cls_key_off(priv, NET_PROT_ETH, NH_FLD_ETH_SA);
+ ether_addr_copy(key + offset, eth_value->h_source);
+ ether_addr_copy(mask + offset, eth_mask->h_source);
+ }
+
+ if (!is_zero_ether_addr(eth_mask->h_dest)) {
+ offset = cls_key_off(priv, NET_PROT_ETH, NH_FLD_ETH_DA);
+ ether_addr_copy(key + offset, eth_value->h_dest);
+ ether_addr_copy(mask + offset, eth_mask->h_dest);
+ }
+
+ return 0;
+}
+
+static int prep_user_ip_rule(struct dpaa2_eth_priv *priv,
+ struct ethtool_usrip4_spec *uip_value,
+ struct ethtool_usrip4_spec *uip_mask,
+ void *key, void *mask)
+{
+ int offset;
+
+ if (uip_mask->tos)
+ return -EOPNOTSUPP;
+
+ if (uip_mask->ip4src) {
+ offset = cls_key_off(priv, NET_PROT_IP, NH_FLD_IP_SRC);
+ *(u32 *)(key + offset) = uip_value->ip4src;
+ *(u32 *)(mask + offset) = uip_mask->ip4src;
+ }
+
+ if (uip_mask->ip4dst) {
+ offset = cls_key_off(priv, NET_PROT_IP, NH_FLD_IP_DST);
+ *(u32 *)(key + offset) = uip_value->ip4dst;
+ *(u32 *)(mask + offset) = uip_mask->ip4dst;
+ }
+
+ if (uip_mask->proto) {
+ offset = cls_key_off(priv, NET_PROT_IP, NH_FLD_IP_PROTO);
+ *(u32 *)(key + offset) = uip_value->proto;
+ *(u32 *)(mask + offset) = uip_mask->proto;
+ }
+ if (uip_mask->l4_4_bytes) {
+ offset = cls_key_off(priv, NET_PROT_UDP, NH_FLD_UDP_PORT_SRC);
+ *(u16 *)(key + offset) = uip_value->l4_4_bytes << 16;
+ *(u16 *)(mask + offset) = uip_mask->l4_4_bytes << 16;
+
+ offset = cls_key_off(priv, NET_PROT_UDP, NH_FLD_UDP_PORT_DST);
+ *(u16 *)(key + offset) = uip_value->l4_4_bytes & 0xFFFF;
+ *(u16 *)(mask + offset) = uip_mask->l4_4_bytes & 0xFFFF;
+ }
+
+ /* Ethertype must be IP */
+ offset = cls_key_off(priv, NET_PROT_ETH, NH_FLD_ETH_TYPE);
+ *(u16 *)(key + offset) = htons(ETH_P_IP);
+ *(u16 *)(mask + offset) = 0xFFFF;
+
+ return 0;
+}
+
+static int prep_ext_rule(struct dpaa2_eth_priv *priv,
+ struct ethtool_flow_ext *ext_value,
+ struct ethtool_flow_ext *ext_mask,
+ void *key, void *mask)
+{
+ int offset;
+
+ if (ext_mask->vlan_etype)
+ return -EOPNOTSUPP;
+
+ if (ext_mask->vlan_tci) {
+ offset = cls_key_off(priv, NET_PROT_VLAN, NH_FLD_VLAN_TCI);
+ *(u16 *)(key + offset) = ext_value->vlan_tci;
+ *(u16 *)(mask + offset) = ext_mask->vlan_tci;
+ }
+
+ return 0;
+}
+
+static int prep_mac_ext_rule(struct dpaa2_eth_priv *priv,
+ struct ethtool_flow_ext *ext_value,
+ struct ethtool_flow_ext *ext_mask,
+ void *key, void *mask)
+{
+ int offset;
+
+ if (!is_zero_ether_addr(ext_mask->h_dest)) {
+ offset = cls_key_off(priv, NET_PROT_ETH, NH_FLD_ETH_DA);
+ ether_addr_copy(key + offset, ext_value->h_dest);
+ ether_addr_copy(mask + offset, ext_mask->h_dest);
+ }
+
+ return 0;
+}
+
+static int prep_cls_rule(struct net_device *net_dev,
+ struct ethtool_rx_flow_spec *fs,
+ void *key)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ const u8 key_size = cls_key_size(priv);
+ void *msk = key + key_size;
+ int err;
+
+ memset(key, 0, key_size * 2);
+
+ switch (fs->flow_type & 0xff) {
+ case TCP_V4_FLOW:
+ err = prep_l4_rule(priv, &fs->h_u.tcp_ip4_spec,
+ &fs->m_u.tcp_ip4_spec, key, msk,
+ IPPROTO_TCP);
+ break;
+ case UDP_V4_FLOW:
+ err = prep_l4_rule(priv, &fs->h_u.udp_ip4_spec,
+ &fs->m_u.udp_ip4_spec, key, msk,
+ IPPROTO_UDP);
+ break;
+ case SCTP_V4_FLOW:
+ err = prep_l4_rule(priv, &fs->h_u.sctp_ip4_spec,
+ &fs->m_u.sctp_ip4_spec, key, msk,
+ IPPROTO_SCTP);
+ break;
+ case ETHER_FLOW:
+ err = prep_eth_rule(priv, &fs->h_u.ether_spec,
+ &fs->m_u.ether_spec, key, msk);
+ break;
+ case IP_USER_FLOW:
+ err = prep_user_ip_rule(priv, &fs->h_u.usr_ip4_spec,
+ &fs->m_u.usr_ip4_spec, key, msk);
+ break;
+ default:
+ /* TODO: AH, ESP */
+ return -EOPNOTSUPP;
+ }
+ if (err)
+ return err;
+
+ if (fs->flow_type & FLOW_EXT) {
+ err = prep_ext_rule(priv, &fs->h_ext, &fs->m_ext, key, msk);
+ if (err)
+ return err;
+ }
+
+ if (fs->flow_type & FLOW_MAC_EXT) {
+ err = prep_mac_ext_rule(priv, &fs->h_ext, &fs->m_ext, key, msk);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
+static int del_cls(struct net_device *net_dev, int location);
+
+static int do_cls(struct net_device *net_dev,
+ struct ethtool_rx_flow_spec *fs,
+ bool add)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ struct device *dev = net_dev->dev.parent;
+ const int rule_cnt = dpaa2_eth_fs_count(priv);
+ struct dpni_rule_cfg rule_cfg;
+ struct dpni_fs_action_cfg fs_act = { 0 };
+ void *dma_mem;
+ int err = 0, tc;
+
+ if (!dpaa2_eth_fs_enabled(priv)) {
+ netdev_err(net_dev, "dev does not support steering!\n");
+ /* dev doesn't support steering */
+ return -EOPNOTSUPP;
+ }
+
+ if ((fs->ring_cookie != RX_CLS_FLOW_DISC &&
+ fs->ring_cookie >= dpaa2_eth_queue_count(priv)) ||
+ fs->location >= rule_cnt)
+ return -EINVAL;
+
+ /* When adding a new rule, check if location if available
+ * and if not, free the existing table entry before inserting
+ * the new one
+ */
+ if (add && (priv->cls_rule[fs->location].in_use == true))
+ del_cls(net_dev, fs->location);
+
+ memset(&rule_cfg, 0, sizeof(rule_cfg));
+ rule_cfg.key_size = cls_key_size(priv);
+
+ /* allocate twice the key size, for the actual key and for mask */
+ dma_mem = kzalloc(rule_cfg.key_size * 2, GFP_DMA | GFP_KERNEL);
+ if (!dma_mem)
+ return -ENOMEM;
+
+ err = prep_cls_rule(net_dev, fs, dma_mem);
+ if (err)
+ goto err_free_mem;
+
+ rule_cfg.key_iova = dma_map_single(dev, dma_mem,
+ rule_cfg.key_size * 2,
+ DMA_TO_DEVICE);
+
+ rule_cfg.mask_iova = rule_cfg.key_iova + rule_cfg.key_size;
+
+ if (fs->ring_cookie == RX_CLS_FLOW_DISC)
+ fs_act.options |= DPNI_FS_OPT_DISCARD;
+ else
+ fs_act.flow_id = fs->ring_cookie;
+
+ for (tc = 0; tc < dpaa2_eth_tc_count(priv); tc++) {
+ if (add)
+ err = dpni_add_fs_entry(priv->mc_io, 0, priv->mc_token,
+ tc, fs->location, &rule_cfg,
+ &fs_act);
+ else
+ err = dpni_remove_fs_entry(priv->mc_io, 0,
+ priv->mc_token, tc,
+ &rule_cfg);
+
+ if (err)
+ break;
+ }
+
+ dma_unmap_single(dev, rule_cfg.key_iova,
+ rule_cfg.key_size * 2, DMA_TO_DEVICE);
+
+ if (err)
+ netdev_err(net_dev, "dpaa2_add/remove_cls() error %d\n", err);
+
+err_free_mem:
+ kfree(dma_mem);
+
+ return err;
+}
+
+static int add_cls(struct net_device *net_dev,
+ struct ethtool_rx_flow_spec *fs)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ int err;
+
+ err = do_cls(net_dev, fs, true);
+ if (err)
+ return err;
+
+ priv->cls_rule[fs->location].in_use = true;
+ priv->cls_rule[fs->location].fs = *fs;
+
+ return 0;
+}
+
+static int del_cls(struct net_device *net_dev, int location)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ int err;
+
+ err = do_cls(net_dev, &priv->cls_rule[location].fs, false);
+ if (err)
+ return err;
+
+ priv->cls_rule[location].in_use = false;
+
+ return 0;
+}
+
+static int set_hash(struct net_device *net_dev, u64 data)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ u32 key = 0;
+ int i;
+
+ if (data & RXH_DISCARD)
+ return -EOPNOTSUPP;
+
+ for (i = 0; i < priv->num_dist_fields; i++)
+ if (priv->dist_fields[i].rxnfc_field & data)
+ key |= priv->dist_fields[i].id;
+
+ return dpaa2_eth_set_dist_key(priv, DPAA2_ETH_RX_DIST_HASH, key);
+}
+
+static int dpaa2_eth_set_rxnfc(struct net_device *net_dev,
+ struct ethtool_rxnfc *rxnfc)
+{
+ int err = 0;
+
+ switch (rxnfc->cmd) {
+ case ETHTOOL_SRXCLSRLINS:
+ err = add_cls(net_dev, &rxnfc->fs);
+ break;
+ case ETHTOOL_SRXCLSRLDEL:
+ err = del_cls(net_dev, rxnfc->fs.location);
+ break;
+ case ETHTOOL_SRXFH:
+ err = set_hash(net_dev, rxnfc->data);
+ break;
+ default:
+ err = -EOPNOTSUPP;
+ }
+
+ return err;
+}
+
+static int dpaa2_eth_get_rxnfc(struct net_device *net_dev,
+ struct ethtool_rxnfc *rxnfc, u32 *rule_locs)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ const int rule_cnt = dpaa2_eth_fs_count(priv);
+ int i, j;
+
+ switch (rxnfc->cmd) {
+ case ETHTOOL_GRXFH:
+ /* we purposely ignore cmd->flow_type for now, because the
+ * classifier only supports a single set of fields for all
+ * protocols
+ */
+ rxnfc->data = priv->rx_hash_fields;
+ break;
+ case ETHTOOL_GRXRINGS:
+ rxnfc->data = dpaa2_eth_queue_count(priv);
+ break;
+
+ case ETHTOOL_GRXCLSRLCNT:
+ for (i = 0, rxnfc->rule_cnt = 0; i < rule_cnt; i++)
+ if (priv->cls_rule[i].in_use)
+ rxnfc->rule_cnt++;
+ rxnfc->data = rule_cnt;
+ break;
+
+ case ETHTOOL_GRXCLSRULE:
+ if (!priv->cls_rule[rxnfc->fs.location].in_use)
+ return -EINVAL;
+
+ rxnfc->fs = priv->cls_rule[rxnfc->fs.location].fs;
+ break;
+
+ case ETHTOOL_GRXCLSRLALL:
+ for (i = 0, j = 0; i < rule_cnt; i++) {
+ if (!priv->cls_rule[i].in_use)
+ continue;
+ if (j == rxnfc->rule_cnt)
+ return -EMSGSIZE;
+ rule_locs[j++] = i;
+ }
+ rxnfc->rule_cnt = j;
+ rxnfc->data = rule_cnt;
+ break;
+
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
+const struct ethtool_ops dpaa2_ethtool_ops = {
+ .get_drvinfo = dpaa2_eth_get_drvinfo,
+ .get_link = ethtool_op_get_link,
+ .get_link_ksettings = dpaa2_eth_get_link_ksettings,
+ .set_link_ksettings = dpaa2_eth_set_link_ksettings,
+ .get_pauseparam = dpaa2_eth_get_pauseparam,
+ .set_pauseparam = dpaa2_eth_set_pauseparam,
+ .get_sset_count = dpaa2_eth_get_sset_count,
+ .get_ethtool_stats = dpaa2_eth_get_ethtool_stats,
+ .get_strings = dpaa2_eth_get_strings,
+ .get_rxnfc = dpaa2_eth_get_rxnfc,
+ .set_rxnfc = dpaa2_eth_set_rxnfc,
+};
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpkg.h
@@ -0,0 +1,176 @@
+/* Copyright 2013-2015 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __FSL_DPKG_H_
+#define __FSL_DPKG_H_
+
+#include <linux/types.h>
+#include "net.h"
+
+/* Data Path Key Generator API
+ * Contains initialization APIs and runtime APIs for the Key Generator
+ */
+
+/** Key Generator properties */
+
+/**
+ * Number of masks per key extraction
+ */
+#define DPKG_NUM_OF_MASKS 4
+/**
+ * Number of extractions per key profile
+ */
+#define DPKG_MAX_NUM_OF_EXTRACTS 10
+
+/**
+ * enum dpkg_extract_from_hdr_type - Selecting extraction by header types
+ * @DPKG_FROM_HDR: Extract selected bytes from header, by offset
+ * @DPKG_FROM_FIELD: Extract selected bytes from header, by offset from field
+ * @DPKG_FULL_FIELD: Extract a full field
+ */
+enum dpkg_extract_from_hdr_type {
+ DPKG_FROM_HDR = 0,
+ DPKG_FROM_FIELD = 1,
+ DPKG_FULL_FIELD = 2
+};
+
+/**
+ * enum dpkg_extract_type - Enumeration for selecting extraction type
+ * @DPKG_EXTRACT_FROM_HDR: Extract from the header
+ * @DPKG_EXTRACT_FROM_DATA: Extract from data not in specific header
+ * @DPKG_EXTRACT_FROM_PARSE: Extract from parser-result;
+ * e.g. can be used to extract header existence;
+ * please refer to 'Parse Result definition' section in the parser BG
+ */
+enum dpkg_extract_type {
+ DPKG_EXTRACT_FROM_HDR = 0,
+ DPKG_EXTRACT_FROM_DATA = 1,
+ DPKG_EXTRACT_FROM_PARSE = 3
+};
+
+/**
+ * struct dpkg_mask - A structure for defining a single extraction mask
+ * @mask: Byte mask for the extracted content
+ * @offset: Offset within the extracted content
+ */
+struct dpkg_mask {
+ u8 mask;
+ u8 offset;
+};
+
+/**
+ * struct dpkg_extract - A structure for defining a single extraction
+ * @type: Determines how the union below is interpreted:
+ * DPKG_EXTRACT_FROM_HDR: selects 'from_hdr';
+ * DPKG_EXTRACT_FROM_DATA: selects 'from_data';
+ * DPKG_EXTRACT_FROM_PARSE: selects 'from_parse'
+ * @extract: Selects extraction method
+ * @num_of_byte_masks: Defines the number of valid entries in the array below;
+ * This is also the number of bytes to be used as masks
+ * @masks: Masks parameters
+ */
+struct dpkg_extract {
+ enum dpkg_extract_type type;
+ /**
+ * union extract - Selects extraction method
+ * @from_hdr - Used when 'type = DPKG_EXTRACT_FROM_HDR'
+ * @from_data - Used when 'type = DPKG_EXTRACT_FROM_DATA'
+ * @from_parse - Used when 'type = DPKG_EXTRACT_FROM_PARSE'
+ */
+ union {
+ /**
+ * struct from_hdr - Used when 'type = DPKG_EXTRACT_FROM_HDR'
+ * @prot: Any of the supported headers
+ * @type: Defines the type of header extraction:
+ * DPKG_FROM_HDR: use size & offset below;
+ * DPKG_FROM_FIELD: use field, size and offset below;
+ * DPKG_FULL_FIELD: use field below
+ * @field: One of the supported fields (NH_FLD_)
+ *
+ * @size: Size in bytes
+ * @offset: Byte offset
+ * @hdr_index: Clear for cases not listed below;
+ * Used for protocols that may have more than a single
+ * header, 0 indicates an outer header;
+ * Supported protocols (possible values):
+ * NET_PROT_VLAN (0, HDR_INDEX_LAST);
+ * NET_PROT_MPLS (0, 1, HDR_INDEX_LAST);
+ * NET_PROT_IP(0, HDR_INDEX_LAST);
+ * NET_PROT_IPv4(0, HDR_INDEX_LAST);
+ * NET_PROT_IPv6(0, HDR_INDEX_LAST);
+ */
+
+ struct {
+ enum net_prot prot;
+ enum dpkg_extract_from_hdr_type type;
+ u32 field;
+ u8 size;
+ u8 offset;
+ u8 hdr_index;
+ } from_hdr;
+ /**
+ * struct from_data - Used when 'type = DPKG_EXTRACT_FROM_DATA'
+ * @size: Size in bytes
+ * @offset: Byte offset
+ */
+ struct {
+ u8 size;
+ u8 offset;
+ } from_data;
+
+ /**
+ * struct from_parse - Used when
+ * 'type = DPKG_EXTRACT_FROM_PARSE'
+ * @size: Size in bytes
+ * @offset: Byte offset
+ */
+ struct {
+ u8 size;
+ u8 offset;
+ } from_parse;
+ } extract;
+
+ u8 num_of_byte_masks;
+ struct dpkg_mask masks[DPKG_NUM_OF_MASKS];
+};
+
+/**
+ * struct dpkg_profile_cfg - A structure for defining a full Key Generation
+ * profile (rule)
+ * @num_extracts: Defines the number of valid entries in the array below
+ * @extracts: Array of required extractions
+ */
+struct dpkg_profile_cfg {
+ u8 num_extracts;
+ struct dpkg_extract extracts[DPKG_MAX_NUM_OF_EXTRACTS];
+};
+
+#endif /* __FSL_DPKG_H_ */
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpni-cmd.h
@@ -0,0 +1,719 @@
+/* Copyright 2013-2016 Freescale Semiconductor Inc.
+ * Copyright 2016 NXP
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _FSL_DPNI_CMD_H
+#define _FSL_DPNI_CMD_H
+
+#include "dpni.h"
+
+/* DPNI Version */
+#define DPNI_VER_MAJOR 7
+#define DPNI_VER_MINOR 0
+#define DPNI_CMD_BASE_VERSION 1
+#define DPNI_CMD_2ND_VERSION 2
+#define DPNI_CMD_ID_OFFSET 4
+
+#define DPNI_CMD(id) (((id) << DPNI_CMD_ID_OFFSET) | DPNI_CMD_BASE_VERSION)
+#define DPNI_CMD_V2(id) (((id) << DPNI_CMD_ID_OFFSET) | DPNI_CMD_2ND_VERSION)
+
+#define DPNI_CMDID_OPEN DPNI_CMD(0x801)
+#define DPNI_CMDID_CLOSE DPNI_CMD(0x800)
+#define DPNI_CMDID_CREATE DPNI_CMD(0x901)
+#define DPNI_CMDID_DESTROY DPNI_CMD(0x900)
+#define DPNI_CMDID_GET_API_VERSION DPNI_CMD(0xa01)
+
+#define DPNI_CMDID_ENABLE DPNI_CMD(0x002)
+#define DPNI_CMDID_DISABLE DPNI_CMD(0x003)
+#define DPNI_CMDID_GET_ATTR DPNI_CMD(0x004)
+#define DPNI_CMDID_RESET DPNI_CMD(0x005)
+#define DPNI_CMDID_IS_ENABLED DPNI_CMD(0x006)
+
+#define DPNI_CMDID_SET_IRQ DPNI_CMD(0x010)
+#define DPNI_CMDID_GET_IRQ DPNI_CMD(0x011)
+#define DPNI_CMDID_SET_IRQ_ENABLE DPNI_CMD(0x012)
+#define DPNI_CMDID_GET_IRQ_ENABLE DPNI_CMD(0x013)
+#define DPNI_CMDID_SET_IRQ_MASK DPNI_CMD(0x014)
+#define DPNI_CMDID_GET_IRQ_MASK DPNI_CMD(0x015)
+#define DPNI_CMDID_GET_IRQ_STATUS DPNI_CMD(0x016)
+#define DPNI_CMDID_CLEAR_IRQ_STATUS DPNI_CMD(0x017)
+
+#define DPNI_CMDID_SET_POOLS DPNI_CMD_V2(0x200)
+#define DPNI_CMDID_SET_ERRORS_BEHAVIOR DPNI_CMD(0x20B)
+
+#define DPNI_CMDID_GET_QDID DPNI_CMD(0x210)
+#define DPNI_CMDID_GET_TX_DATA_OFFSET DPNI_CMD(0x212)
+#define DPNI_CMDID_GET_LINK_STATE DPNI_CMD(0x215)
+#define DPNI_CMDID_SET_MAX_FRAME_LENGTH DPNI_CMD(0x216)
+#define DPNI_CMDID_GET_MAX_FRAME_LENGTH DPNI_CMD(0x217)
+#define DPNI_CMDID_SET_LINK_CFG DPNI_CMD(0x21A)
+#define DPNI_CMDID_SET_TX_SHAPING DPNI_CMD_V2(0x21B)
+
+#define DPNI_CMDID_SET_MCAST_PROMISC DPNI_CMD(0x220)
+#define DPNI_CMDID_GET_MCAST_PROMISC DPNI_CMD(0x221)
+#define DPNI_CMDID_SET_UNICAST_PROMISC DPNI_CMD(0x222)
+#define DPNI_CMDID_GET_UNICAST_PROMISC DPNI_CMD(0x223)
+#define DPNI_CMDID_SET_PRIM_MAC DPNI_CMD(0x224)
+#define DPNI_CMDID_GET_PRIM_MAC DPNI_CMD(0x225)
+#define DPNI_CMDID_ADD_MAC_ADDR DPNI_CMD(0x226)
+#define DPNI_CMDID_REMOVE_MAC_ADDR DPNI_CMD(0x227)
+#define DPNI_CMDID_CLR_MAC_FILTERS DPNI_CMD(0x228)
+
+#define DPNI_CMDID_SET_RX_TC_DIST DPNI_CMD(0x235)
+
+#define DPNI_CMDID_SET_QOS_TBL DPNI_CMD(0x240)
+#define DPNI_CMDID_ADD_QOS_ENT DPNI_CMD(0x241)
+#define DPNI_CMDID_REMOVE_QOS_ENT DPNI_CMD(0x242)
+#define DPNI_CMDID_ADD_FS_ENT DPNI_CMD(0x244)
+#define DPNI_CMDID_REMOVE_FS_ENT DPNI_CMD(0x245)
+#define DPNI_CMDID_CLR_FS_ENT DPNI_CMD(0x246)
+
+#define DPNI_CMDID_SET_TX_PRIORITIES DPNI_CMD_V2(0x250)
+#define DPNI_CMDID_GET_STATISTICS DPNI_CMD_V2(0x25D)
+#define DPNI_CMDID_RESET_STATISTICS DPNI_CMD(0x25E)
+#define DPNI_CMDID_GET_QUEUE DPNI_CMD(0x25F)
+#define DPNI_CMDID_SET_QUEUE DPNI_CMD(0x260)
+#define DPNI_CMDID_GET_TAILDROP DPNI_CMD(0x261)
+#define DPNI_CMDID_SET_TAILDROP DPNI_CMD(0x262)
+
+#define DPNI_CMDID_GET_PORT_MAC_ADDR DPNI_CMD(0x263)
+
+#define DPNI_CMDID_GET_BUFFER_LAYOUT DPNI_CMD(0x264)
+#define DPNI_CMDID_SET_BUFFER_LAYOUT DPNI_CMD(0x265)
+
+#define DPNI_CMDID_SET_TX_CONFIRMATION_MODE DPNI_CMD(0x266)
+#define DPNI_CMDID_SET_CONGESTION_NOTIFICATION DPNI_CMD(0x267)
+#define DPNI_CMDID_GET_CONGESTION_NOTIFICATION DPNI_CMD(0x268)
+#define DPNI_CMDID_SET_EARLY_DROP DPNI_CMD(0x269)
+#define DPNI_CMDID_GET_EARLY_DROP DPNI_CMD(0x26A)
+#define DPNI_CMDID_GET_OFFLOAD DPNI_CMD(0x26B)
+#define DPNI_CMDID_SET_OFFLOAD DPNI_CMD(0x26C)
+
+#define DPNI_CMDID_SET_RX_FS_DIST DPNI_CMD(0x273)
+#define DPNI_CMDID_SET_RX_HASH_DIST DPNI_CMD(0x274)
+
+/* Macros for accessing command fields smaller than 1byte */
+#define DPNI_MASK(field) \
+ GENMASK(DPNI_##field##_SHIFT + DPNI_##field##_SIZE - 1, \
+ DPNI_##field##_SHIFT)
+
+#define dpni_set_field(var, field, val) \
+ ((var) |= (((val) << DPNI_##field##_SHIFT) & DPNI_MASK(field)))
+#define dpni_get_field(var, field) \
+ (((var) & DPNI_MASK(field)) >> DPNI_##field##_SHIFT)
+
+struct dpni_cmd_open {
+ __le32 dpni_id;
+};
+
+#define DPNI_BACKUP_POOL(val, order) (((val) & 0x1) << (order))
+struct dpni_cmd_set_pools {
+ u8 num_dpbp;
+ u8 backup_pool_mask;
+ __le16 pad;
+ struct {
+ __le16 dpbp_id;
+ u8 priority_mask;
+ u8 pad;
+ } pool[DPNI_MAX_DPBP];
+ __le16 buffer_size[DPNI_MAX_DPBP];
+};
+
+/* The enable indication is always the least significant bit */
+#define DPNI_ENABLE_SHIFT 0
+#define DPNI_ENABLE_SIZE 1
+
+struct dpni_rsp_is_enabled {
+ u8 enabled;
+};
+
+struct dpni_rsp_get_irq {
+ /* response word 0 */
+ __le32 irq_val;
+ __le32 pad;
+ /* response word 1 */
+ __le64 irq_addr;
+ /* response word 2 */
+ __le32 irq_num;
+ __le32 type;
+};
+
+struct dpni_cmd_set_irq_enable {
+ u8 enable;
+ u8 pad[3];
+ u8 irq_index;
+};
+
+struct dpni_cmd_get_irq_enable {
+ __le32 pad;
+ u8 irq_index;
+};
+
+struct dpni_rsp_get_irq_enable {
+ u8 enabled;
+};
+
+struct dpni_cmd_set_irq_mask {
+ __le32 mask;
+ u8 irq_index;
+};
+
+struct dpni_cmd_get_irq_mask {
+ __le32 pad;
+ u8 irq_index;
+};
+
+struct dpni_rsp_get_irq_mask {
+ __le32 mask;
+};
+
+struct dpni_cmd_get_irq_status {
+ __le32 status;
+ u8 irq_index;
+};
+
+struct dpni_rsp_get_irq_status {
+ __le32 status;
+};
+
+struct dpni_cmd_clear_irq_status {
+ __le32 status;
+ u8 irq_index;
+};
+
+struct dpni_rsp_get_attr {
+ /* response word 0 */
+ __le32 options;
+ u8 num_queues;
+ u8 num_tcs;
+ u8 mac_filter_entries;
+ u8 pad0;
+ /* response word 1 */
+ u8 vlan_filter_entries;
+ u8 pad1;
+ u8 qos_entries;
+ u8 pad2;
+ __le16 fs_entries;
+ __le16 pad3;
+ /* response word 2 */
+ u8 qos_key_size;
+ u8 fs_key_size;
+ __le16 wriop_version;
+};
+
+#define DPNI_ERROR_ACTION_SHIFT 0
+#define DPNI_ERROR_ACTION_SIZE 4
+#define DPNI_FRAME_ANN_SHIFT 4
+#define DPNI_FRAME_ANN_SIZE 1
+
+struct dpni_cmd_set_errors_behavior {
+ __le32 errors;
+ /* from least significant bit: error_action:4, set_frame_annotation:1 */
+ u8 flags;
+};
+
+/* There are 3 separate commands for configuring Rx, Tx and Tx confirmation
+ * buffer layouts, but they all share the same parameters.
+ * If one of the functions changes, below structure needs to be split.
+ */
+
+#define DPNI_PASS_TS_SHIFT 0
+#define DPNI_PASS_TS_SIZE 1
+#define DPNI_PASS_PR_SHIFT 1
+#define DPNI_PASS_PR_SIZE 1
+#define DPNI_PASS_FS_SHIFT 2
+#define DPNI_PASS_FS_SIZE 1
+
+struct dpni_cmd_get_buffer_layout {
+ u8 qtype;
+};
+
+struct dpni_rsp_get_buffer_layout {
+ /* response word 0 */
+ u8 pad0[6];
+ /* from LSB: pass_timestamp:1, parser_result:1, frame_status:1 */
+ u8 flags;
+ u8 pad1;
+ /* response word 1 */
+ __le16 private_data_size;
+ __le16 data_align;
+ __le16 head_room;
+ __le16 tail_room;
+};
+
+struct dpni_cmd_set_buffer_layout {
+ /* cmd word 0 */
+ u8 qtype;
+ u8 pad0[3];
+ __le16 options;
+ /* from LSB: pass_timestamp:1, parser_result:1, frame_status:1 */
+ u8 flags;
+ u8 pad1;
+ /* cmd word 1 */
+ __le16 private_data_size;
+ __le16 data_align;
+ __le16 head_room;
+ __le16 tail_room;
+};
+
+struct dpni_cmd_set_offload {
+ u8 pad[3];
+ u8 dpni_offload;
+ __le32 config;
+};
+
+struct dpni_cmd_get_offload {
+ u8 pad[3];
+ u8 dpni_offload;
+};
+
+struct dpni_rsp_get_offload {
+ __le32 pad;
+ __le32 config;
+};
+
+struct dpni_cmd_get_qdid {
+ u8 qtype;
+};
+
+struct dpni_rsp_get_qdid {
+ __le16 qdid;
+};
+
+struct dpni_rsp_get_tx_data_offset {
+ __le16 data_offset;
+};
+
+struct dpni_cmd_get_statistics {
+ u8 page_number;
+ u8 param;
+};
+
+struct dpni_rsp_get_statistics {
+ __le64 counter[DPNI_STATISTICS_CNT];
+};
+
+struct dpni_cmd_set_link_cfg {
+ /* cmd word 0 */
+ __le64 pad0;
+ /* cmd word 1 */
+ __le32 rate;
+ __le32 pad1;
+ /* cmd word 2 */
+ __le64 options;
+};
+
+#define DPNI_LINK_STATE_SHIFT 0
+#define DPNI_LINK_STATE_SIZE 1
+
+struct dpni_rsp_get_link_state {
+ /* response word 0 */
+ __le32 pad0;
+ /* from LSB: up:1 */
+ u8 flags;
+ u8 pad1[3];
+ /* response word 1 */
+ __le32 rate;
+ __le32 pad2;
+ /* response word 2 */
+ __le64 options;
+};
+
+#define DPNI_COUPLED_SHIFT 0
+#define DPNI_COUPLED_SIZE 1
+
+struct dpni_cmd_set_tx_shaping {
+ /* cmd word 0 */
+ __le16 tx_cr_max_burst_size;
+ __le16 tx_er_max_burst_size;
+ __le32 pad;
+ /* cmd word 1 */
+ __le32 tx_cr_rate_limit;
+ __le32 tx_er_rate_limit;
+ /* cmd word 2 */
+ /* from LSB: coupled:1 */
+ u8 coupled;
+};
+
+struct dpni_cmd_set_max_frame_length {
+ __le16 max_frame_length;
+};
+
+struct dpni_rsp_get_max_frame_length {
+ __le16 max_frame_length;
+};
+
+struct dpni_cmd_set_multicast_promisc {
+ u8 enable;
+};
+
+struct dpni_rsp_get_multicast_promisc {
+ u8 enabled;
+};
+
+struct dpni_cmd_set_unicast_promisc {
+ u8 enable;
+};
+
+struct dpni_rsp_get_unicast_promisc {
+ u8 enabled;
+};
+
+struct dpni_cmd_set_primary_mac_addr {
+ __le16 pad;
+ u8 mac_addr[6];
+};
+
+struct dpni_rsp_get_primary_mac_addr {
+ __le16 pad;
+ u8 mac_addr[6];
+};
+
+struct dpni_rsp_get_port_mac_addr {
+ __le16 pad;
+ u8 mac_addr[6];
+};
+
+struct dpni_cmd_add_mac_addr {
+ __le16 pad;
+ u8 mac_addr[6];
+};
+
+struct dpni_cmd_remove_mac_addr {
+ __le16 pad;
+ u8 mac_addr[6];
+};
+
+#define DPNI_UNICAST_FILTERS_SHIFT 0
+#define DPNI_UNICAST_FILTERS_SIZE 1
+#define DPNI_MULTICAST_FILTERS_SHIFT 1
+#define DPNI_MULTICAST_FILTERS_SIZE 1
+
+struct dpni_cmd_clear_mac_filters {
+ /* from LSB: unicast:1, multicast:1 */
+ u8 flags;
+};
+
+#define DPNI_SEPARATE_GRP_SHIFT 0
+#define DPNI_SEPARATE_GRP_SIZE 1
+#define DPNI_MODE_1_SHIFT 0
+#define DPNI_MODE_1_SIZE 4
+#define DPNI_MODE_2_SHIFT 4
+#define DPNI_MODE_2_SIZE 4
+
+struct dpni_cmd_set_tx_priorities {
+ __le16 flags;
+ u8 prio_group_A;
+ u8 prio_group_B;
+ __le32 pad0;
+ u8 modes[4];
+ __le32 pad1;
+ __le64 pad2;
+ __le16 delta_bandwidth[8];
+};
+
+#define DPNI_DIST_MODE_SHIFT 0
+#define DPNI_DIST_MODE_SIZE 4
+#define DPNI_MISS_ACTION_SHIFT 4
+#define DPNI_MISS_ACTION_SIZE 4
+
+struct dpni_cmd_set_rx_tc_dist {
+ /* cmd word 0 */
+ __le16 dist_size;
+ u8 tc_id;
+ /* from LSB: dist_mode:4, miss_action:4 */
+ u8 flags;
+ __le16 pad0;
+ __le16 default_flow_id;
+ /* cmd word 1..5 */
+ __le64 pad1[5];
+ /* cmd word 6 */
+ __le64 key_cfg_iova;
+};
+
+/* dpni_set_rx_tc_dist extension (structure of the DMA-able memory at
+ * key_cfg_iova)
+ */
+struct dpni_mask_cfg {
+ u8 mask;
+ u8 offset;
+};
+
+#define DPNI_EFH_TYPE_SHIFT 0
+#define DPNI_EFH_TYPE_SIZE 4
+#define DPNI_EXTRACT_TYPE_SHIFT 0
+#define DPNI_EXTRACT_TYPE_SIZE 4
+
+struct dpni_dist_extract {
+ /* word 0 */
+ u8 prot;
+ /* EFH type stored in the 4 least significant bits */
+ u8 efh_type;
+ u8 size;
+ u8 offset;
+ __le32 field;
+ /* word 1 */
+ u8 hdr_index;
+ u8 constant;
+ u8 num_of_repeats;
+ u8 num_of_byte_masks;
+ /* Extraction type is stored in the 4 LSBs */
+ u8 extract_type;
+ u8 pad[3];
+ /* word 2 */
+ struct dpni_mask_cfg masks[4];
+};
+
+struct dpni_ext_set_rx_tc_dist {
+ /* extension word 0 */
+ u8 num_extracts;
+ u8 pad[7];
+ /* words 1..25 */
+ struct dpni_dist_extract extracts[DPKG_MAX_NUM_OF_EXTRACTS];
+};
+
+struct dpni_cmd_get_queue {
+ u8 qtype;
+ u8 tc;
+ u8 index;
+};
+
+#define DPNI_DEST_TYPE_SHIFT 0
+#define DPNI_DEST_TYPE_SIZE 4
+#define DPNI_STASH_CTRL_SHIFT 6
+#define DPNI_STASH_CTRL_SIZE 1
+#define DPNI_HOLD_ACTIVE_SHIFT 7
+#define DPNI_HOLD_ACTIVE_SIZE 1
+
+struct dpni_rsp_get_queue {
+ /* response word 0 */
+ __le64 pad0;
+ /* response word 1 */
+ __le32 dest_id;
+ __le16 pad1;
+ u8 dest_prio;
+ /* From LSB: dest_type:4, pad:2, flc_stash_ctrl:1, hold_active:1 */
+ u8 flags;
+ /* response word 2 */
+ __le64 flc;
+ /* response word 3 */
+ __le64 user_context;
+ /* response word 4 */
+ __le32 fqid;
+ __le16 qdbin;
+};
+
+struct dpni_cmd_set_queue {
+ /* cmd word 0 */
+ u8 qtype;
+ u8 tc;
+ u8 index;
+ u8 options;
+ __le32 pad0;
+ /* cmd word 1 */
+ __le32 dest_id;
+ __le16 pad1;
+ u8 dest_prio;
+ u8 flags;
+ /* cmd word 2 */
+ __le64 flc;
+ /* cmd word 3 */
+ __le64 user_context;
+};
+
+#define DPNI_DISCARD_ON_MISS_SHIFT 0
+#define DPNI_DISCARD_ON_MISS_SIZE 1
+
+struct dpni_cmd_set_qos_table {
+ __le32 pad;
+ u8 default_tc;
+ /* only the LSB */
+ u8 discard_on_miss;
+ __le16 pad1[21];
+ __le64 key_cfg_iova;
+};
+
+struct dpni_cmd_add_qos_entry {
+ __le16 pad;
+ u8 tc_id;
+ u8 key_size;
+ __le16 index;
+ __le16 pad2;
+ __le64 key_iova;
+ __le64 mask_iova;
+};
+
+struct dpni_cmd_remove_qos_entry {
+ u8 pad1[3];
+ u8 key_size;
+ __le32 pad2;
+ __le64 key_iova;
+ __le64 mask_iova;
+};
+
+struct dpni_cmd_add_fs_entry {
+ /* cmd word 0 */
+ __le16 options;
+ u8 tc_id;
+ u8 key_size;
+ __le16 index;
+ __le16 flow_id;
+ /* cmd word 1 */
+ __le64 key_iova;
+ /* cmd word 2 */
+ __le64 mask_iova;
+ /* cmd word 3 */
+ __le64 flc;
+};
+
+struct dpni_cmd_remove_fs_entry {
+ /* cmd word 0 */
+ __le16 pad0;
+ u8 tc_id;
+ u8 key_size;
+ __le32 pad1;
+ /* cmd word 1 */
+ __le64 key_iova;
+ /* cmd word 2 */
+ __le64 mask_iova;
+};
+
+struct dpni_cmd_set_taildrop {
+ /* cmd word 0 */
+ u8 congestion_point;
+ u8 qtype;
+ u8 tc;
+ u8 index;
+ __le32 pad0;
+ /* cmd word 1 */
+ /* Only least significant bit is relevant */
+ u8 enable;
+ u8 pad1;
+ u8 units;
+ u8 pad2;
+ __le32 threshold;
+};
+
+struct dpni_cmd_get_taildrop {
+ u8 congestion_point;
+ u8 qtype;
+ u8 tc;
+ u8 index;
+};
+
+struct dpni_rsp_get_taildrop {
+ /* cmd word 0 */
+ __le64 pad0;
+ /* cmd word 1 */
+ /* only least significant bit is relevant */
+ u8 enable;
+ u8 pad1;
+ u8 units;
+ u8 pad2;
+ __le32 threshold;
+};
+
+struct dpni_rsp_get_api_version {
+ u16 major;
+ u16 minor;
+};
+
+#define DPNI_DEST_TYPE_SHIFT 0
+#define DPNI_DEST_TYPE_SIZE 4
+#define DPNI_CONG_UNITS_SHIFT 4
+#define DPNI_CONG_UNITS_SIZE 2
+
+struct dpni_cmd_set_congestion_notification {
+ /* cmd word 0 */
+ u8 qtype;
+ u8 tc;
+ u8 pad[6];
+ /* cmd word 1 */
+ __le32 dest_id;
+ __le16 notification_mode;
+ u8 dest_priority;
+ /* from LSB: dest_type: 4 units:2 */
+ u8 type_units;
+ /* cmd word 2 */
+ __le64 message_iova;
+ /* cmd word 3 */
+ __le64 message_ctx;
+ /* cmd word 4 */
+ __le32 threshold_entry;
+ __le32 threshold_exit;
+};
+
+struct dpni_cmd_get_congestion_notification {
+ /* cmd word 0 */
+ u8 qtype;
+ u8 tc;
+};
+
+struct dpni_rsp_get_congestion_notification {
+ /* cmd word 0 */
+ __le64 pad;
+ /* cmd word 1 */
+ __le32 dest_id;
+ __le16 notification_mode;
+ u8 dest_priority;
+ /* from LSB: dest_type: 4 units:2 */
+ u8 type_units;
+ /* cmd word 2 */
+ __le64 message_iova;
+ /* cmd word 3 */
+ __le64 message_ctx;
+ /* cmd word 4 */
+ __le32 threshold_entry;
+ __le32 threshold_exit;
+};
+
+#define DPNI_RX_FS_DIST_ENABLE_SHIFT 0
+#define DPNI_RX_FS_DIST_ENABLE_SIZE 1
+struct dpni_cmd_set_rx_fs_dist {
+ __le16 dist_size;
+ u8 enable;
+ u8 tc;
+ __le16 miss_flow_id;
+ __le16 pad;
+ __le64 key_cfg_iova;
+};
+
+#define DPNI_RX_HASH_DIST_ENABLE_SHIFT 0
+#define DPNI_RX_HASH_DIST_ENABLE_SIZE 1
+struct dpni_cmd_set_rx_hash_dist {
+ __le16 dist_size;
+ u8 enable;
+ u8 tc;
+ __le32 pad;
+ __le64 key_cfg_iova;
+};
+
+#endif /* _FSL_DPNI_CMD_H */
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpni.c
@@ -0,0 +1,2112 @@
+/* Copyright 2013-2016 Freescale Semiconductor Inc.
+ * Copyright 2016 NXP
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/fsl/mc.h>
+#include "dpni.h"
+#include "dpni-cmd.h"
+
+/**
+ * dpni_prepare_key_cfg() - function prepare extract parameters
+ * @cfg: defining a full Key Generation profile (rule)
+ * @key_cfg_buf: Zeroed 256 bytes of memory before mapping it to DMA
+ *
+ * This function has to be called before the following functions:
+ * - dpni_set_rx_tc_dist()
+ * - dpni_set_qos_table()
+ */
+int dpni_prepare_key_cfg(const struct dpkg_profile_cfg *cfg, u8 *key_cfg_buf)
+{
+ int i, j;
+ struct dpni_ext_set_rx_tc_dist *dpni_ext;
+ struct dpni_dist_extract *extr;
+
+ if (cfg->num_extracts > DPKG_MAX_NUM_OF_EXTRACTS)
+ return -EINVAL;
+
+ dpni_ext = (struct dpni_ext_set_rx_tc_dist *)key_cfg_buf;
+ dpni_ext->num_extracts = cfg->num_extracts;
+
+ for (i = 0; i < cfg->num_extracts; i++) {
+ extr = &dpni_ext->extracts[i];
+
+ switch (cfg->extracts[i].type) {
+ case DPKG_EXTRACT_FROM_HDR:
+ extr->prot = cfg->extracts[i].extract.from_hdr.prot;
+ dpni_set_field(extr->efh_type, EFH_TYPE,
+ cfg->extracts[i].extract.from_hdr.type);
+ extr->size = cfg->extracts[i].extract.from_hdr.size;
+ extr->offset = cfg->extracts[i].extract.from_hdr.offset;
+ extr->field = cpu_to_le32(
+ cfg->extracts[i].extract.from_hdr.field);
+ extr->hdr_index =
+ cfg->extracts[i].extract.from_hdr.hdr_index;
+ break;
+ case DPKG_EXTRACT_FROM_DATA:
+ extr->size = cfg->extracts[i].extract.from_data.size;
+ extr->offset =
+ cfg->extracts[i].extract.from_data.offset;
+ break;
+ case DPKG_EXTRACT_FROM_PARSE:
+ extr->size = cfg->extracts[i].extract.from_parse.size;
+ extr->offset =
+ cfg->extracts[i].extract.from_parse.offset;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ extr->num_of_byte_masks = cfg->extracts[i].num_of_byte_masks;
+ dpni_set_field(extr->extract_type, EXTRACT_TYPE,
+ cfg->extracts[i].type);
+
+ for (j = 0; j < DPKG_NUM_OF_MASKS; j++) {
+ extr->masks[j].mask = cfg->extracts[i].masks[j].mask;
+ extr->masks[j].offset =
+ cfg->extracts[i].masks[j].offset;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * dpni_open() - Open a control session for the specified object
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @dpni_id: DPNI unique ID
+ * @token: Returned token; use in subsequent API calls
+ *
+ * This function can be used to open a control session for an
+ * already created object; an object may have been declared in
+ * the DPL or by calling the dpni_create() function.
+ * This function returns a unique authentication token,
+ * associated with the specific object ID and the specific MC
+ * portal; this token must be used in all subsequent commands for
+ * this specific object.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_open(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ int dpni_id,
+ u16 *token)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_open *cmd_params;
+
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_OPEN,
+ cmd_flags,
+ 0);
+ cmd_params = (struct dpni_cmd_open *)cmd.params;
+ cmd_params->dpni_id = cpu_to_le32(dpni_id);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ *token = mc_cmd_hdr_read_token(&cmd);
+
+ return 0;
+}
+
+/**
+ * dpni_close() - Close the control session of the object
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ *
+ * After this function is called, no further operations are
+ * allowed on the object without opening a new control session.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_close(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_CLOSE,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_set_pools() - Set buffer pools configuration
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @cfg: Buffer pools configuration
+ *
+ * mandatory for DPNI operation
+ * warning:Allowed only when DPNI is disabled
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_pools(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_pools_cfg *cfg)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_pools *cmd_params;
+ int i;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_POOLS,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_pools *)cmd.params;
+ cmd_params->num_dpbp = cfg->num_dpbp;
+ for (i = 0; i < DPNI_MAX_DPBP; i++) {
+ cmd_params->pool[i].dpbp_id =
+ cpu_to_le16(cfg->pools[i].dpbp_id);
+ cmd_params->pool[i].priority_mask =
+ cfg->pools[i].priority_mask;
+ cmd_params->buffer_size[i] =
+ cpu_to_le16(cfg->pools[i].buffer_size);
+ cmd_params->backup_pool_mask |=
+ DPNI_BACKUP_POOL(cfg->pools[i].backup_pool, i);
+ }
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_enable() - Enable the DPNI, allow sending and receiving frames.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_ENABLE,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_disable() - Disable the DPNI, stop sending and receiving frames.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_disable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_DISABLE,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_is_enabled() - Check if the DPNI is enabled.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @en: Returns '1' if object is enabled; '0' otherwise
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_is_enabled(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int *en)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_rsp_is_enabled *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_IS_ENABLED,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_is_enabled *)cmd.params;
+ *en = dpni_get_field(rsp_params->enabled, ENABLE);
+
+ return 0;
+}
+
+/**
+ * dpni_reset() - Reset the DPNI, returns the object to initial state.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_reset(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_RESET,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_set_irq_enable() - Set overall interrupt state.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @irq_index: The interrupt index to configure
+ * @en: Interrupt state: - enable = 1, disable = 0
+ *
+ * Allows GPP software to control when interrupts are generated.
+ * Each interrupt can have up to 32 causes. The enable/disable control's the
+ * overall interrupt state. if the interrupt is disabled no causes will cause
+ * an interrupt.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 en)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_irq_enable *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_IRQ_ENABLE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_irq_enable *)cmd.params;
+ dpni_set_field(cmd_params->enable, ENABLE, en);
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_get_irq_enable() - Get overall interrupt state
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @irq_index: The interrupt index to configure
+ * @en: Returned interrupt state - enable = 1, disable = 0
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 *en)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_get_irq_enable *cmd_params;
+ struct dpni_rsp_get_irq_enable *rsp_params;
+
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_IRQ_ENABLE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_get_irq_enable *)cmd.params;
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_irq_enable *)cmd.params;
+ *en = dpni_get_field(rsp_params->enabled, ENABLE);
+
+ return 0;
+}
+
+/**
+ * dpni_set_irq_mask() - Set interrupt mask.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @irq_index: The interrupt index to configure
+ * @mask: event mask to trigger interrupt;
+ * each bit:
+ * 0 = ignore event
+ * 1 = consider event for asserting IRQ
+ *
+ * Every interrupt can have up to 32 causes and the interrupt model supports
+ * masking/unmasking each cause independently
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 mask)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_irq_mask *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_IRQ_MASK,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_irq_mask *)cmd.params;
+ cmd_params->mask = cpu_to_le32(mask);
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_get_irq_mask() - Get interrupt mask.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @irq_index: The interrupt index to configure
+ * @mask: Returned event mask to trigger interrupt
+ *
+ * Every interrupt can have up to 32 causes and the interrupt model supports
+ * masking/unmasking each cause independently
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *mask)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_get_irq_mask *cmd_params;
+ struct dpni_rsp_get_irq_mask *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_IRQ_MASK,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_get_irq_mask *)cmd.params;
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_irq_mask *)cmd.params;
+ *mask = le32_to_cpu(rsp_params->mask);
+
+ return 0;
+}
+
+/**
+ * dpni_get_irq_status() - Get the current status of any pending interrupts.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @irq_index: The interrupt index to configure
+ * @status: Returned interrupts status - one bit per cause:
+ * 0 = no interrupt pending
+ * 1 = interrupt pending
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *status)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_get_irq_status *cmd_params;
+ struct dpni_rsp_get_irq_status *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_IRQ_STATUS,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_get_irq_status *)cmd.params;
+ cmd_params->status = cpu_to_le32(*status);
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_irq_status *)cmd.params;
+ *status = le32_to_cpu(rsp_params->status);
+
+ return 0;
+}
+
+/**
+ * dpni_clear_irq_status() - Clear a pending interrupt's status
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @irq_index: The interrupt index to configure
+ * @status: bits to clear (W1C) - one bit per cause:
+ * 0 = don't change
+ * 1 = clear status bit
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_clear_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 status)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_clear_irq_status *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_CLEAR_IRQ_STATUS,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_clear_irq_status *)cmd.params;
+ cmd_params->irq_index = irq_index;
+ cmd_params->status = cpu_to_le32(status);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_get_attributes() - Retrieve DPNI attributes.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @attr: Object's attributes
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_attributes(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpni_attr *attr)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_rsp_get_attr *rsp_params;
+
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_ATTR,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_attr *)cmd.params;
+ attr->options = le32_to_cpu(rsp_params->options);
+ attr->num_queues = rsp_params->num_queues;
+ attr->num_tcs = rsp_params->num_tcs;
+ attr->mac_filter_entries = rsp_params->mac_filter_entries;
+ attr->vlan_filter_entries = rsp_params->vlan_filter_entries;
+ attr->qos_entries = rsp_params->qos_entries;
+ attr->fs_entries = le16_to_cpu(rsp_params->fs_entries);
+ attr->qos_key_size = rsp_params->qos_key_size;
+ attr->fs_key_size = rsp_params->fs_key_size;
+ attr->wriop_version = le16_to_cpu(rsp_params->wriop_version);
+
+ return 0;
+}
+
+/**
+ * dpni_set_errors_behavior() - Set errors behavior
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @cfg: Errors configuration
+ *
+ * this function may be called numerous times with different
+ * error masks
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_errors_behavior(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpni_error_cfg *cfg)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_errors_behavior *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_ERRORS_BEHAVIOR,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_errors_behavior *)cmd.params;
+ cmd_params->errors = cpu_to_le32(cfg->errors);
+ dpni_set_field(cmd_params->flags, ERROR_ACTION, cfg->error_action);
+ dpni_set_field(cmd_params->flags, FRAME_ANN, cfg->set_frame_annotation);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_get_buffer_layout() - Retrieve buffer layout attributes.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @qtype: Type of queue to retrieve configuration for
+ * @layout: Returns buffer layout attributes
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_buffer_layout(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ struct dpni_buffer_layout *layout)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_get_buffer_layout *cmd_params;
+ struct dpni_rsp_get_buffer_layout *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_BUFFER_LAYOUT,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_get_buffer_layout *)cmd.params;
+ cmd_params->qtype = qtype;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_buffer_layout *)cmd.params;
+ layout->pass_timestamp = dpni_get_field(rsp_params->flags, PASS_TS);
+ layout->pass_parser_result = dpni_get_field(rsp_params->flags, PASS_PR);
+ layout->pass_frame_status = dpni_get_field(rsp_params->flags, PASS_FS);
+ layout->private_data_size = le16_to_cpu(rsp_params->private_data_size);
+ layout->data_align = le16_to_cpu(rsp_params->data_align);
+ layout->data_head_room = le16_to_cpu(rsp_params->head_room);
+ layout->data_tail_room = le16_to_cpu(rsp_params->tail_room);
+
+ return 0;
+}
+
+/**
+ * dpni_set_buffer_layout() - Set buffer layout configuration.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @qtype: Type of queue this configuration applies to
+ * @layout: Buffer layout configuration
+ *
+ * Return: '0' on Success; Error code otherwise.
+ *
+ * @warning Allowed only when DPNI is disabled
+ */
+int dpni_set_buffer_layout(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ const struct dpni_buffer_layout *layout)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_buffer_layout *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_BUFFER_LAYOUT,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_buffer_layout *)cmd.params;
+ cmd_params->qtype = qtype;
+ cmd_params->options = cpu_to_le16(layout->options);
+ dpni_set_field(cmd_params->flags, PASS_TS, layout->pass_timestamp);
+ dpni_set_field(cmd_params->flags, PASS_PR, layout->pass_parser_result);
+ dpni_set_field(cmd_params->flags, PASS_FS, layout->pass_frame_status);
+ cmd_params->private_data_size = cpu_to_le16(layout->private_data_size);
+ cmd_params->data_align = cpu_to_le16(layout->data_align);
+ cmd_params->head_room = cpu_to_le16(layout->data_head_room);
+ cmd_params->tail_room = cpu_to_le16(layout->data_tail_room);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_set_offload() - Set DPNI offload configuration.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @type: Type of DPNI offload
+ * @config: Offload configuration.
+ * For checksum offloads, non-zero value enables the offload
+ *
+ * Return: '0' on Success; Error code otherwise.
+ *
+ * @warning Allowed only when DPNI is disabled
+ */
+
+int dpni_set_offload(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_offload type,
+ u32 config)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_offload *cmd_params;
+
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_OFFLOAD,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_offload *)cmd.params;
+ cmd_params->dpni_offload = type;
+ cmd_params->config = cpu_to_le32(config);
+
+ return mc_send_command(mc_io, &cmd);
+}
+
+int dpni_get_offload(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_offload type,
+ u32 *config)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_get_offload *cmd_params;
+ struct dpni_rsp_get_offload *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_OFFLOAD,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_get_offload *)cmd.params;
+ cmd_params->dpni_offload = type;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_offload *)cmd.params;
+ *config = le32_to_cpu(rsp_params->config);
+
+ return 0;
+}
+
+/**
+ * dpni_get_qdid() - Get the Queuing Destination ID (QDID) that should be used
+ * for enqueue operations
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @qtype: Type of queue to receive QDID for
+ * @qdid: Returned virtual QDID value that should be used as an argument
+ * in all enqueue operations
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_qdid(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ u16 *qdid)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_get_qdid *cmd_params;
+ struct dpni_rsp_get_qdid *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_QDID,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_get_qdid *)cmd.params;
+ cmd_params->qtype = qtype;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_qdid *)cmd.params;
+ *qdid = le16_to_cpu(rsp_params->qdid);
+
+ return 0;
+}
+
+/**
+ * dpni_get_tx_data_offset() - Get the Tx data offset (from start of buffer)
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @data_offset: Tx data offset (from start of buffer)
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_tx_data_offset(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 *data_offset)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_rsp_get_tx_data_offset *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_TX_DATA_OFFSET,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_tx_data_offset *)cmd.params;
+ *data_offset = le16_to_cpu(rsp_params->data_offset);
+
+ return 0;
+}
+
+/**
+ * dpni_set_link_cfg() - set the link configuration.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @cfg: Link configuration
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_link_cfg(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_link_cfg *cfg)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_link_cfg *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_LINK_CFG,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_link_cfg *)cmd.params;
+ cmd_params->rate = cpu_to_le32(cfg->rate);
+ cmd_params->options = cpu_to_le64(cfg->options);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_get_link_state() - Return the link state (either up or down)
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @state: Returned link state;
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_link_state(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpni_link_state *state)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_rsp_get_link_state *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_LINK_STATE,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_link_state *)cmd.params;
+ state->up = dpni_get_field(rsp_params->flags, LINK_STATE);
+ state->rate = le32_to_cpu(rsp_params->rate);
+ state->options = le64_to_cpu(rsp_params->options);
+
+ return 0;
+}
+
+/**
+ * dpni_set_tx_shaping() - Set the transmit shaping
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @tx_cr_shaper: TX committed rate shaping configuration
+ * @tx_er_shaper: TX excess rate shaping configuration
+ * @coupled: Committed and excess rate shapers are coupled
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_tx_shaping(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_tx_shaping_cfg *tx_cr_shaper,
+ const struct dpni_tx_shaping_cfg *tx_er_shaper,
+ int coupled)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_tx_shaping *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_TX_SHAPING,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_tx_shaping *)cmd.params;
+ cmd_params->tx_cr_max_burst_size =
+ cpu_to_le16(tx_cr_shaper->max_burst_size);
+ cmd_params->tx_er_max_burst_size =
+ cpu_to_le16(tx_er_shaper->max_burst_size);
+ cmd_params->tx_cr_rate_limit = cpu_to_le32(tx_cr_shaper->rate_limit);
+ cmd_params->tx_er_rate_limit = cpu_to_le32(tx_er_shaper->rate_limit);
+ dpni_set_field(cmd_params->coupled, COUPLED, coupled);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_set_max_frame_length() - Set the maximum received frame length.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @max_frame_length: Maximum received frame length (in
+ * bytes); frame is discarded if its
+ * length exceeds this value
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_max_frame_length(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 max_frame_length)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_max_frame_length *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_MAX_FRAME_LENGTH,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_max_frame_length *)cmd.params;
+ cmd_params->max_frame_length = cpu_to_le16(max_frame_length);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_get_max_frame_length() - Get the maximum received frame length.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @max_frame_length: Maximum received frame length (in
+ * bytes); frame is discarded if its
+ * length exceeds this value
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_max_frame_length(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 *max_frame_length)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_rsp_get_max_frame_length *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_MAX_FRAME_LENGTH,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_max_frame_length *)cmd.params;
+ *max_frame_length = le16_to_cpu(rsp_params->max_frame_length);
+
+ return 0;
+}
+
+/**
+ * dpni_set_multicast_promisc() - Enable/disable multicast promiscuous mode
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @en: Set to '1' to enable; '0' to disable
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_multicast_promisc(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int en)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_multicast_promisc *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_MCAST_PROMISC,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_multicast_promisc *)cmd.params;
+ dpni_set_field(cmd_params->enable, ENABLE, en);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_get_multicast_promisc() - Get multicast promiscuous mode
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @en: Returns '1' if enabled; '0' otherwise
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_multicast_promisc(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int *en)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_rsp_get_multicast_promisc *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_MCAST_PROMISC,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_multicast_promisc *)cmd.params;
+ *en = dpni_get_field(rsp_params->enabled, ENABLE);
+
+ return 0;
+}
+
+/**
+ * dpni_set_unicast_promisc() - Enable/disable unicast promiscuous mode
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @en: Set to '1' to enable; '0' to disable
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_unicast_promisc(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int en)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_unicast_promisc *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_UNICAST_PROMISC,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_unicast_promisc *)cmd.params;
+ dpni_set_field(cmd_params->enable, ENABLE, en);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_get_unicast_promisc() - Get unicast promiscuous mode
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @en: Returns '1' if enabled; '0' otherwise
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_unicast_promisc(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int *en)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_rsp_get_unicast_promisc *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_UNICAST_PROMISC,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_unicast_promisc *)cmd.params;
+ *en = dpni_get_field(rsp_params->enabled, ENABLE);
+
+ return 0;
+}
+
+/**
+ * dpni_set_primary_mac_addr() - Set the primary MAC address
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @mac_addr: MAC address to set as primary address
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_primary_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const u8 mac_addr[6])
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_primary_mac_addr *cmd_params;
+ int i;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_PRIM_MAC,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_primary_mac_addr *)cmd.params;
+ for (i = 0; i < 6; i++)
+ cmd_params->mac_addr[i] = mac_addr[5 - i];
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_get_primary_mac_addr() - Get the primary MAC address
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @mac_addr: Returned MAC address
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_primary_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 mac_addr[6])
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_rsp_get_primary_mac_addr *rsp_params;
+ int i, err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_PRIM_MAC,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_primary_mac_addr *)cmd.params;
+ for (i = 0; i < 6; i++)
+ mac_addr[5 - i] = rsp_params->mac_addr[i];
+
+ return 0;
+}
+
+/**
+ * dpni_get_port_mac_addr() - Retrieve MAC address associated to the physical
+ * port the DPNI is attached to
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @mac_addr: MAC address of the physical port, if any, otherwise 0
+ *
+ * The primary MAC address is not cleared by this operation.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_port_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 mac_addr[6])
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_rsp_get_port_mac_addr *rsp_params;
+ int i, err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_PORT_MAC_ADDR,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_port_mac_addr *)cmd.params;
+ for (i = 0; i < 6; i++)
+ mac_addr[5 - i] = rsp_params->mac_addr[i];
+
+ return 0;
+}
+
+/**
+ * dpni_add_mac_addr() - Add MAC address filter
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @mac_addr: MAC address to add
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_add_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const u8 mac_addr[6])
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_add_mac_addr *cmd_params;
+ int i;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_ADD_MAC_ADDR,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_add_mac_addr *)cmd.params;
+ for (i = 0; i < 6; i++)
+ cmd_params->mac_addr[i] = mac_addr[5 - i];
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_remove_mac_addr() - Remove MAC address filter
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @mac_addr: MAC address to remove
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_remove_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const u8 mac_addr[6])
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_remove_mac_addr *cmd_params;
+ int i;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_REMOVE_MAC_ADDR,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_remove_mac_addr *)cmd.params;
+ for (i = 0; i < 6; i++)
+ cmd_params->mac_addr[i] = mac_addr[5 - i];
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_clear_mac_filters() - Clear all unicast and/or multicast MAC filters
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @unicast: Set to '1' to clear unicast addresses
+ * @multicast: Set to '1' to clear multicast addresses
+ *
+ * The primary MAC address is not cleared by this operation.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_clear_mac_filters(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int unicast,
+ int multicast)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_clear_mac_filters *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_CLR_MAC_FILTERS,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_clear_mac_filters *)cmd.params;
+ dpni_set_field(cmd_params->flags, UNICAST_FILTERS, unicast);
+ dpni_set_field(cmd_params->flags, MULTICAST_FILTERS, multicast);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_set_tx_priorities() - Set transmission TC priority configuration
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @cfg: Transmission selection configuration
+ *
+ * warning: Allowed only when DPNI is disabled
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_tx_priorities(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_tx_priorities_cfg *cfg)
+{
+ struct dpni_cmd_set_tx_priorities *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+ int i;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_TX_PRIORITIES,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_tx_priorities *)cmd.params;
+ dpni_set_field(cmd_params->flags,
+ SEPARATE_GRP,
+ cfg->separate_groups);
+ cmd_params->prio_group_A = cfg->prio_group_A;
+ cmd_params->prio_group_B = cfg->prio_group_B;
+
+ for (i = 0; i + 1 < DPNI_MAX_TC; i += 2) {
+ dpni_set_field(cmd_params->modes[i / 2],
+ MODE_1,
+ cfg->tc_sched[i].mode);
+ dpni_set_field(cmd_params->modes[i / 2],
+ MODE_2,
+ cfg->tc_sched[i + 1].mode);
+ }
+
+ for (i = 0; i < DPNI_MAX_TC; i++) {
+ cmd_params->delta_bandwidth[i] =
+ cpu_to_le16(cfg->tc_sched[i].delta_bandwidth);
+ }
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_set_rx_tc_dist() - Set Rx traffic class distribution configuration
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @tc_id: Traffic class selection (0-7)
+ * @cfg: Traffic class distribution configuration
+ *
+ * warning: if 'dist_mode != DPNI_DIST_MODE_NONE', call dpni_prepare_key_cfg()
+ * first to prepare the key_cfg_iova parameter
+ *
+ * Return: '0' on Success; error code otherwise.
+ */
+int dpni_set_rx_tc_dist(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 tc_id,
+ const struct dpni_rx_tc_dist_cfg *cfg)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_rx_tc_dist *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_RX_TC_DIST,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_rx_tc_dist *)cmd.params;
+ cmd_params->dist_size = cpu_to_le16(cfg->dist_size);
+ cmd_params->tc_id = tc_id;
+ dpni_set_field(cmd_params->flags, DIST_MODE, cfg->dist_mode);
+ dpni_set_field(cmd_params->flags, MISS_ACTION, cfg->fs_cfg.miss_action);
+ cmd_params->default_flow_id = cpu_to_le16(cfg->fs_cfg.default_flow_id);
+ cmd_params->key_cfg_iova = cpu_to_le64(cfg->key_cfg_iova);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/*
+ * dpni_set_qos_table() - Set QoS mapping table
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @cfg: QoS table configuration
+ *
+ * This function and all QoS-related functions require that
+ *'max_tcs > 1' was set at DPNI creation.
+ *
+ * warning: Before calling this function, call dpkg_prepare_key_cfg() to
+ * prepare the key_cfg_iova parameter
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_qos_table(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_qos_tbl_cfg *cfg)
+{
+ struct dpni_cmd_set_qos_table *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_QOS_TBL,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_qos_table *)cmd.params;
+ cmd_params->default_tc = cfg->default_tc;
+ cmd_params->key_cfg_iova = cpu_to_le64(cfg->key_cfg_iova);
+ dpni_set_field(cmd_params->discard_on_miss,
+ ENABLE,
+ cfg->discard_on_miss);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_add_qos_entry() - Add QoS mapping entry (to select a traffic class)
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @cfg: QoS rule to add
+ * @tc_id: Traffic class selection (0-7)
+ * @index: Location in the QoS table where to insert the entry.
+ * Only relevant if MASKING is enabled for QoS classification on
+ * this DPNI, it is ignored for exact match.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_add_qos_entry(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_rule_cfg *cfg,
+ u8 tc_id,
+ u16 index)
+{
+ struct dpni_cmd_add_qos_entry *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_ADD_QOS_ENT,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_add_qos_entry *)cmd.params;
+ cmd_params->tc_id = tc_id;
+ cmd_params->key_size = cfg->key_size;
+ cmd_params->index = cpu_to_le16(index);
+ cmd_params->key_iova = cpu_to_le64(cfg->key_iova);
+ cmd_params->mask_iova = cpu_to_le64(cfg->mask_iova);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_remove_qos_entry() - Remove QoS mapping entry
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @cfg: QoS rule to remove
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_remove_qos_entry(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_rule_cfg *cfg)
+{
+ struct dpni_cmd_remove_qos_entry *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_REMOVE_QOS_ENT,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_remove_qos_entry *)cmd.params;
+ cmd_params->key_size = cfg->key_size;
+ cmd_params->key_iova = cpu_to_le64(cfg->key_iova);
+ cmd_params->mask_iova = cpu_to_le64(cfg->mask_iova);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_add_fs_entry() - Add Flow Steering entry for a specific traffic class
+ * (to select a flow ID)
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @tc_id: Traffic class selection (0-7)
+ * @index: Location in the QoS table where to insert the entry.
+ * Only relevant if MASKING is enabled for QoS
+ * classification on this DPNI, it is ignored for exact match.
+ * @cfg: Flow steering rule to add
+ * @action: Action to be taken as result of a classification hit
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_add_fs_entry(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 tc_id,
+ u16 index,
+ const struct dpni_rule_cfg *cfg,
+ const struct dpni_fs_action_cfg *action)
+{
+ struct dpni_cmd_add_fs_entry *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_ADD_FS_ENT,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_add_fs_entry *)cmd.params;
+ cmd_params->tc_id = tc_id;
+ cmd_params->key_size = cfg->key_size;
+ cmd_params->index = cpu_to_le16(index);
+ cmd_params->key_iova = cpu_to_le64(cfg->key_iova);
+ cmd_params->mask_iova = cpu_to_le64(cfg->mask_iova);
+ cmd_params->options = cpu_to_le16(action->options);
+ cmd_params->flow_id = cpu_to_le16(action->flow_id);
+ cmd_params->flc = cpu_to_le64(action->flc);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_remove_fs_entry() - Remove Flow Steering entry from a specific
+ * traffic class
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @tc_id: Traffic class selection (0-7)
+ * @cfg: Flow steering rule to remove
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_remove_fs_entry(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 tc_id,
+ const struct dpni_rule_cfg *cfg)
+{
+ struct dpni_cmd_remove_fs_entry *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_REMOVE_FS_ENT,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_remove_fs_entry *)cmd.params;
+ cmd_params->tc_id = tc_id;
+ cmd_params->key_size = cfg->key_size;
+ cmd_params->key_iova = cpu_to_le64(cfg->key_iova);
+ cmd_params->mask_iova = cpu_to_le64(cfg->mask_iova);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_set_congestion_notification() - Set traffic class congestion
+ * notification configuration
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @qtype: Type of queue - Rx, Tx and Tx confirm types are supported
+ * @tc_id: Traffic class selection (0-7)
+ * @cfg: Congestion notification configuration
+ *
+ * Return: '0' on Success; error code otherwise.
+ */
+int dpni_set_congestion_notification(
+ struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ u8 tc_id,
+ const struct dpni_congestion_notification_cfg *cfg)
+{
+ struct dpni_cmd_set_congestion_notification *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(
+ DPNI_CMDID_SET_CONGESTION_NOTIFICATION,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_congestion_notification *)cmd.params;
+ cmd_params->qtype = qtype;
+ cmd_params->tc = tc_id;
+ cmd_params->dest_id = cpu_to_le32(cfg->dest_cfg.dest_id);
+ cmd_params->notification_mode = cpu_to_le16(cfg->notification_mode);
+ cmd_params->dest_priority = cfg->dest_cfg.priority;
+ dpni_set_field(cmd_params->type_units, DEST_TYPE,
+ cfg->dest_cfg.dest_type);
+ dpni_set_field(cmd_params->type_units, CONG_UNITS, cfg->units);
+ cmd_params->message_iova = cpu_to_le64(cfg->message_iova);
+ cmd_params->message_ctx = cpu_to_le64(cfg->message_ctx);
+ cmd_params->threshold_entry = cpu_to_le32(cfg->threshold_entry);
+ cmd_params->threshold_exit = cpu_to_le32(cfg->threshold_exit);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_get_congestion_notification() - Get traffic class congestion
+ * notification configuration
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @qtype: Type of queue - Rx, Tx and Tx confirm types are supported
+ * @tc_id: bits 7-4 contain ceetm channel index (valid only for TX);
+ * bits 3-0 contain traffic class.
+ * Use macro DPNI_BUILD_CH_TC() to build correct value for
+ * tc_id parameter.
+ * @cfg: congestion notification configuration
+ *
+ * Return: '0' on Success; error code otherwise.
+ */
+int dpni_get_congestion_notification(
+ struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ u8 tc_id,
+ struct dpni_congestion_notification_cfg *cfg)
+{
+ struct dpni_rsp_get_congestion_notification *rsp_params;
+ struct dpni_cmd_get_congestion_notification *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(
+ DPNI_CMDID_GET_CONGESTION_NOTIFICATION,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_get_congestion_notification *)cmd.params;
+ cmd_params->qtype = qtype;
+ cmd_params->tc = tc_id;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ rsp_params = (struct dpni_rsp_get_congestion_notification *)cmd.params;
+ cfg->units = dpni_get_field(rsp_params->type_units, CONG_UNITS);
+ cfg->threshold_entry = le32_to_cpu(rsp_params->threshold_entry);
+ cfg->threshold_exit = le32_to_cpu(rsp_params->threshold_exit);
+ cfg->message_ctx = le64_to_cpu(rsp_params->message_ctx);
+ cfg->message_iova = le64_to_cpu(rsp_params->message_iova);
+ cfg->notification_mode = le16_to_cpu(rsp_params->notification_mode);
+ cfg->dest_cfg.dest_id = le32_to_cpu(rsp_params->dest_id);
+ cfg->dest_cfg.priority = rsp_params->dest_priority;
+ cfg->dest_cfg.dest_type = dpni_get_field(rsp_params->type_units,
+ DEST_TYPE);
+
+ return 0;
+}
+
+/**
+ * dpni_set_queue() - Set queue parameters
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @qtype: Type of queue - all queue types are supported, although
+ * the command is ignored for Tx
+ * @tc: Traffic class, in range 0 to NUM_TCS - 1
+ * @index: Selects the specific queue out of the set allocated for the
+ * same TC. Value must be in range 0 to NUM_QUEUES - 1
+ * @options: A combination of DPNI_QUEUE_OPT_ values that control what
+ * configuration options are set on the queue
+ * @queue: Queue structure
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_queue(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ u8 tc,
+ u8 index,
+ u8 options,
+ const struct dpni_queue *queue)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_queue *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_QUEUE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_queue *)cmd.params;
+ cmd_params->qtype = qtype;
+ cmd_params->tc = tc;
+ cmd_params->index = index;
+ cmd_params->options = options;
+ cmd_params->dest_id = cpu_to_le32(queue->destination.id);
+ cmd_params->dest_prio = queue->destination.priority;
+ dpni_set_field(cmd_params->flags, DEST_TYPE, queue->destination.type);
+ dpni_set_field(cmd_params->flags, STASH_CTRL, queue->flc.stash_control);
+ dpni_set_field(cmd_params->flags, HOLD_ACTIVE,
+ queue->destination.hold_active);
+ cmd_params->flc = cpu_to_le64(queue->flc.value);
+ cmd_params->user_context = cpu_to_le64(queue->user_context);
+
+ /* send command to mc */
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_get_queue() - Get queue parameters
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @qtype: Type of queue - all queue types are supported
+ * @tc: Traffic class, in range 0 to NUM_TCS - 1
+ * @index: Selects the specific queue out of the set allocated for the
+ * same TC. Value must be in range 0 to NUM_QUEUES - 1
+ * @queue: Queue configuration structure
+ * @qid: Queue identification
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_queue(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ u8 tc,
+ u8 index,
+ struct dpni_queue *queue,
+ struct dpni_queue_id *qid)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_get_queue *cmd_params;
+ struct dpni_rsp_get_queue *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_QUEUE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_get_queue *)cmd.params;
+ cmd_params->qtype = qtype;
+ cmd_params->tc = tc;
+ cmd_params->index = index;
+
+ /* send command to mc */
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_queue *)cmd.params;
+ queue->destination.id = le32_to_cpu(rsp_params->dest_id);
+ queue->destination.priority = rsp_params->dest_prio;
+ queue->destination.type = dpni_get_field(rsp_params->flags,
+ DEST_TYPE);
+ queue->flc.stash_control = dpni_get_field(rsp_params->flags,
+ STASH_CTRL);
+ queue->destination.hold_active = dpni_get_field(rsp_params->flags,
+ HOLD_ACTIVE);
+ queue->flc.value = le64_to_cpu(rsp_params->flc);
+ queue->user_context = le64_to_cpu(rsp_params->user_context);
+ qid->fqid = le32_to_cpu(rsp_params->fqid);
+ qid->qdbin = le16_to_cpu(rsp_params->qdbin);
+
+ return 0;
+}
+
+/**
+ * dpni_get_statistics() - Get DPNI statistics
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @page: Selects the statistics page to retrieve, see
+ * DPNI_GET_STATISTICS output. Pages are numbered 0 to 2.
+ * @param: Custom parameter for some pages used to select a certain
+ * statistic source, for example the TC.
+ * @stat: Structure containing the statistics
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_statistics(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 page,
+ u8 param,
+ union dpni_statistics *stat)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_get_statistics *cmd_params;
+ struct dpni_rsp_get_statistics *rsp_params;
+ int i, err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_STATISTICS,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_get_statistics *)cmd.params;
+ cmd_params->page_number = page;
+ cmd_params->param = param;
+
+ /* send command to mc */
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_statistics *)cmd.params;
+ for (i = 0; i < DPNI_STATISTICS_CNT; i++)
+ stat->raw.counter[i] = le64_to_cpu(rsp_params->counter[i]);
+
+ return 0;
+}
+
+/**
+ * dpni_reset_statistics() - Clears DPNI statistics
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_reset_statistics(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_RESET_STATISTICS,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_set_taildrop() - Set taildrop per queue or TC
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @cg_point: Congestion point
+ * @q_type: Queue type on which the taildrop is configured.
+ * Only Rx queues are supported for now
+ * @tc: bits 7-4 contain ceetm channel index (valid only for TX);
+ * bits 3-0 contain traffic class.
+ * Use macro DPNI_BUILD_CH_TC() to build correct value for
+ * tc parameter.
+ * @q_index: Index of the queue if the DPNI supports multiple queues for
+ * traffic distribution. Ignored if CONGESTION_POINT is not 0.
+ * @taildrop: Taildrop structure
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_taildrop(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_congestion_point cg_point,
+ enum dpni_queue_type qtype,
+ u8 tc,
+ u8 index,
+ struct dpni_taildrop *taildrop)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_taildrop *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_TAILDROP,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_taildrop *)cmd.params;
+ cmd_params->congestion_point = cg_point;
+ cmd_params->qtype = qtype;
+ cmd_params->tc = tc;
+ cmd_params->index = index;
+ dpni_set_field(cmd_params->enable, ENABLE, taildrop->enable);
+ cmd_params->units = taildrop->units;
+ cmd_params->threshold = cpu_to_le32(taildrop->threshold);
+
+ /* send command to mc */
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_get_taildrop() - Get taildrop information
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @cg_point: Congestion point
+ * @q_type: Queue type on which the taildrop is configured.
+ * Only Rx queues are supported for now
+ * @tc: bits 7-4 contain ceetm channel index (valid only for TX);
+ * bits 3-0 contain traffic class.
+ * Use macro DPNI_BUILD_CH_TC() to build correct value for
+ * tc parameter.
+ * @q_index: Index of the queue if the DPNI supports multiple queues for
+ * traffic distribution. Ignored if CONGESTION_POINT is not 0.
+ * @taildrop: Taildrop structure
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_taildrop(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_congestion_point cg_point,
+ enum dpni_queue_type qtype,
+ u8 tc,
+ u8 index,
+ struct dpni_taildrop *taildrop)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_get_taildrop *cmd_params;
+ struct dpni_rsp_get_taildrop *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_TAILDROP,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_get_taildrop *)cmd.params;
+ cmd_params->congestion_point = cg_point;
+ cmd_params->qtype = qtype;
+ cmd_params->tc = tc;
+ cmd_params->index = index;
+
+ /* send command to mc */
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_taildrop *)cmd.params;
+ taildrop->enable = dpni_get_field(rsp_params->enable, ENABLE);
+ taildrop->units = rsp_params->units;
+ taildrop->threshold = le32_to_cpu(rsp_params->threshold);
+
+ return 0;
+}
+
+/**
+ * dpni_get_api_version() - Get Data Path Network Interface API version
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @major_ver: Major version of data path network interface API
+ * @minor_ver: Minor version of data path network interface API
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_api_version(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 *major_ver,
+ u16 *minor_ver)
+{
+ struct dpni_rsp_get_api_version *rsp_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_API_VERSION,
+ cmd_flags, 0);
+
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ rsp_params = (struct dpni_rsp_get_api_version *)cmd.params;
+ *major_ver = le16_to_cpu(rsp_params->major);
+ *minor_ver = le16_to_cpu(rsp_params->minor);
+
+ return 0;
+}
+
+/**
+ * dpni_set_rx_fs_dist() - Set Rx traffic class FS distribution
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @cfg: Distribution configuration
+ * If the FS is already enabled with a previous call the classification
+ * key will be changed but all the table rules are kept. If the
+ * existing rules do not match the key the results will not be
+ * predictable. It is the user responsibility to keep key integrity.
+ * If cfg.enable is set to 1 the command will create a flow steering table
+ * and will classify packets according to this table. The packets that
+ * miss all the table rules will be classified according to settings
+ * made in dpni_set_rx_hash_dist()
+ * If cfg.enable is set to 0 the command will clear flow steering table.
+ * The packets will be classified according to settings made in
+ * dpni_set_rx_hash_dist()
+ */
+int dpni_set_rx_fs_dist(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_rx_dist_cfg *cfg)
+{
+ struct dpni_cmd_set_rx_fs_dist *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_RX_FS_DIST,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_rx_fs_dist *)cmd.params;
+ cmd_params->dist_size = le16_to_cpu(cfg->dist_size);
+ dpni_set_field(cmd_params->enable, RX_FS_DIST_ENABLE, cfg->enable);
+ cmd_params->tc = cfg->tc;
+ cmd_params->miss_flow_id = le16_to_cpu(cfg->fs_miss_flow_id);
+ cmd_params->key_cfg_iova = le64_to_cpu(cfg->key_cfg_iova);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_set_rx_hash_dist() - Set Rx traffic class HASH distribution
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @cfg: Distribution configuration
+ * If cfg.enable is set to 1 the packets will be classified using a hash
+ * function based on the key received in cfg.key_cfg_iova parameter.
+ * If cfg.enable is set to 0 the packets will be sent to the queue configured
+ * in dpni_set_rx_dist_default_queue() call
+ */
+int dpni_set_rx_hash_dist(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_rx_dist_cfg *cfg)
+{
+ struct dpni_cmd_set_rx_hash_dist *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_RX_HASH_DIST,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_rx_hash_dist *)cmd.params;
+ cmd_params->dist_size = le16_to_cpu(cfg->dist_size);
+ dpni_set_field(cmd_params->enable, RX_FS_DIST_ENABLE, cfg->enable);
+ cmd_params->tc = cfg->tc;
+ cmd_params->key_cfg_iova = le64_to_cpu(cfg->key_cfg_iova);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpni.h
@@ -0,0 +1,1172 @@
+/* Copyright 2013-2016 Freescale Semiconductor Inc.
+ * Copyright 2016 NXP
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __FSL_DPNI_H
+#define __FSL_DPNI_H
+
+#include "dpkg.h"
+
+struct fsl_mc_io;
+
+/**
+ * Data Path Network Interface API
+ * Contains initialization APIs and runtime control APIs for DPNI
+ */
+
+/** General DPNI macros */
+
+/**
+ * Maximum number of traffic classes
+ */
+#define DPNI_MAX_TC 8
+/**
+ * Maximum number of buffer pools per DPNI
+ */
+#define DPNI_MAX_DPBP 8
+/**
+ * Maximum number of senders
+ */
+#define DPNI_MAX_SENDERS 16
+/**
+ * Maximum distribution size
+ */
+#define DPNI_MAX_DIST_SIZE 16
+
+/**
+ * All traffic classes considered; see dpni_set_queue()
+ */
+#define DPNI_ALL_TCS (u8)(-1)
+/**
+ * All flows within traffic class considered; see dpni_set_queue()
+ */
+#define DPNI_ALL_TC_FLOWS (u16)(-1)
+/**
+ * Generate new flow ID; see dpni_set_queue()
+ */
+#define DPNI_NEW_FLOW_ID (u16)(-1)
+
+/**
+ * Tx traffic is always released to a buffer pool on transmit, there are no
+ * resources allocated to have the frames confirmed back to the source after
+ * transmission.
+ */
+#define DPNI_OPT_TX_FRM_RELEASE 0x000001
+/**
+ * Disables support for MAC address filtering for addresses other than primary
+ * MAC address. This affects both unicast and multicast. Promiscuous mode can
+ * still be enabled/disabled for both unicast and multicast. If promiscuous mode
+ * is disabled, only traffic matching the primary MAC address will be accepted.
+ */
+#define DPNI_OPT_NO_MAC_FILTER 0x000002
+/**
+ * Allocate policers for this DPNI. They can be used to rate-limit traffic per
+ * traffic class (TC) basis.
+ */
+#define DPNI_OPT_HAS_POLICING 0x000004
+/**
+ * Congestion can be managed in several ways, allowing the buffer pool to
+ * deplete on ingress, taildrop on each queue or use congestion groups for sets
+ * of queues. If set, it configures a single congestion groups across all TCs.
+ * If reset, a congestion group is allocated for each TC. Only relevant if the
+ * DPNI has multiple traffic classes.
+ */
+#define DPNI_OPT_SHARED_CONGESTION 0x000008
+/**
+ * Enables TCAM for Flow Steering and QoS look-ups. If not specified, all
+ * look-ups are exact match. Note that TCAM is not available on LS1088 and its
+ * variants. Setting this bit on these SoCs will trigger an error.
+ */
+#define DPNI_OPT_HAS_KEY_MASKING 0x000010
+/**
+ * Disables the flow steering table.
+ */
+#define DPNI_OPT_NO_FS 0x000020
+
+int dpni_open(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ int dpni_id,
+ u16 *token);
+
+int dpni_close(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+/**
+ * struct dpni_pools_cfg - Structure representing buffer pools configuration
+ * @num_dpbp: Number of DPBPs
+ * @pools: Array of buffer pools parameters; The number of valid entries
+ * must match 'num_dpbp' value
+ */
+struct dpni_pools_cfg {
+ u8 num_dpbp;
+ /**
+ * struct pools - Buffer pools parameters
+ * @dpbp_id: DPBP object ID
+ * @priority_mask: priorities served by DPBP
+ * @buffer_size: Buffer size
+ * @backup_pool: Backup pool
+ */
+ struct {
+ u16 dpbp_id;
+ u8 priority_mask;
+ u16 buffer_size;
+ u8 backup_pool;
+ } pools[DPNI_MAX_DPBP];
+};
+
+int dpni_set_pools(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_pools_cfg *cfg);
+
+int dpni_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+int dpni_disable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+int dpni_is_enabled(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int *en);
+
+int dpni_reset(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+/**
+ * DPNI IRQ Index and Events
+ */
+
+/**
+ * IRQ index
+ */
+#define DPNI_IRQ_INDEX 0
+/**
+ * IRQ event - indicates a change in link state
+ */
+#define DPNI_IRQ_EVENT_LINK_CHANGED 0x00000001
+
+int dpni_set_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 en);
+
+int dpni_get_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 *en);
+
+int dpni_set_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 mask);
+
+int dpni_get_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *mask);
+
+int dpni_get_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *status);
+
+int dpni_clear_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 status);
+
+/**
+ * struct dpni_attr - Structure representing DPNI attributes
+ * @options: Any combination of the following options:
+ * DPNI_OPT_TX_FRM_RELEASE
+ * DPNI_OPT_NO_MAC_FILTER
+ * DPNI_OPT_HAS_POLICING
+ * DPNI_OPT_SHARED_CONGESTION
+ * DPNI_OPT_HAS_KEY_MASKING
+ * DPNI_OPT_NO_FS
+ * @num_queues: Number of Tx and Rx queues used for traffic distribution.
+ * @num_tcs: Number of traffic classes (TCs), reserved for the DPNI.
+ * @mac_filter_entries: Number of entries in the MAC address filtering table.
+ * @vlan_filter_entries: Number of entries in the VLAN address filtering table.
+ * @qos_entries: Number of entries in the QoS classification table.
+ * @fs_entries: Number of entries in the flow steering table.
+ * @qos_key_size: Size, in bytes, of the QoS look-up key. Defining a key larger
+ * than this when adding QoS entries will result in an error.
+ * @fs_key_size: Size, in bytes, of the flow steering look-up key. Defining a
+ * key larger than this when composing the hash + FS key will
+ * result in an error.
+ * @wriop_version: Version of WRIOP HW block. The 3 version values are stored
+ * on 6, 5, 5 bits respectively.
+ */
+struct dpni_attr {
+ u32 options;
+ u8 num_queues;
+ u8 num_tcs;
+ u8 mac_filter_entries;
+ u8 vlan_filter_entries;
+ u8 qos_entries;
+ u16 fs_entries;
+ u8 qos_key_size;
+ u8 fs_key_size;
+ u16 wriop_version;
+};
+
+int dpni_get_attributes(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpni_attr *attr);
+
+/**
+ * DPNI errors
+ */
+
+/**
+ * Extract out of frame header error
+ */
+#define DPNI_ERROR_EOFHE 0x00020000
+/**
+ * Frame length error
+ */
+#define DPNI_ERROR_FLE 0x00002000
+/**
+ * Frame physical error
+ */
+#define DPNI_ERROR_FPE 0x00001000
+/**
+ * Parsing header error
+ */
+#define DPNI_ERROR_PHE 0x00000020
+/**
+ * Parser L3 checksum error
+ */
+#define DPNI_ERROR_L3CE 0x00000004
+/**
+ * Parser L3 checksum error
+ */
+#define DPNI_ERROR_L4CE 0x00000001
+
+/**
+ * enum dpni_error_action - Defines DPNI behavior for errors
+ * @DPNI_ERROR_ACTION_DISCARD: Discard the frame
+ * @DPNI_ERROR_ACTION_CONTINUE: Continue with the normal flow
+ * @DPNI_ERROR_ACTION_SEND_TO_ERROR_QUEUE: Send the frame to the error queue
+ */
+enum dpni_error_action {
+ DPNI_ERROR_ACTION_DISCARD = 0,
+ DPNI_ERROR_ACTION_CONTINUE = 1,
+ DPNI_ERROR_ACTION_SEND_TO_ERROR_QUEUE = 2
+};
+
+/**
+ * struct dpni_error_cfg - Structure representing DPNI errors treatment
+ * @errors: Errors mask; use 'DPNI_ERROR__<X>
+ * @error_action: The desired action for the errors mask
+ * @set_frame_annotation: Set to '1' to mark the errors in frame annotation
+ * status (FAS); relevant only for the non-discard action
+ */
+struct dpni_error_cfg {
+ u32 errors;
+ enum dpni_error_action error_action;
+ int set_frame_annotation;
+};
+
+int dpni_set_errors_behavior(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpni_error_cfg *cfg);
+
+/**
+ * DPNI buffer layout modification options
+ */
+
+/**
+ * Select to modify the time-stamp setting
+ */
+#define DPNI_BUF_LAYOUT_OPT_TIMESTAMP 0x00000001
+/**
+ * Select to modify the parser-result setting; not applicable for Tx
+ */
+#define DPNI_BUF_LAYOUT_OPT_PARSER_RESULT 0x00000002
+/**
+ * Select to modify the frame-status setting
+ */
+#define DPNI_BUF_LAYOUT_OPT_FRAME_STATUS 0x00000004
+/**
+ * Select to modify the private-data-size setting
+ */
+#define DPNI_BUF_LAYOUT_OPT_PRIVATE_DATA_SIZE 0x00000008
+/**
+ * Select to modify the data-alignment setting
+ */
+#define DPNI_BUF_LAYOUT_OPT_DATA_ALIGN 0x00000010
+/**
+ * Select to modify the data-head-room setting
+ */
+#define DPNI_BUF_LAYOUT_OPT_DATA_HEAD_ROOM 0x00000020
+/**
+ * Select to modify the data-tail-room setting
+ */
+#define DPNI_BUF_LAYOUT_OPT_DATA_TAIL_ROOM 0x00000040
+
+/**
+ * struct dpni_buffer_layout - Structure representing DPNI buffer layout
+ * @options: Flags representing the suggested modifications to the buffer
+ * layout; Use any combination of 'DPNI_BUF_LAYOUT_OPT_<X>' flags
+ * @pass_timestamp: Pass timestamp value
+ * @pass_parser_result: Pass parser results
+ * @pass_frame_status: Pass frame status
+ * @private_data_size: Size kept for private data (in bytes)
+ * @data_align: Data alignment
+ * @data_head_room: Data head room
+ * @data_tail_room: Data tail room
+ */
+struct dpni_buffer_layout {
+ u32 options;
+ int pass_timestamp;
+ int pass_parser_result;
+ int pass_frame_status;
+ u16 private_data_size;
+ u16 data_align;
+ u16 data_head_room;
+ u16 data_tail_room;
+};
+
+/**
+ * enum dpni_queue_type - Identifies a type of queue targeted by the command
+ * @DPNI_QUEUE_RX: Rx queue
+ * @DPNI_QUEUE_TX: Tx queue
+ * @DPNI_QUEUE_TX_CONFIRM: Tx confirmation queue
+ * @DPNI_QUEUE_RX_ERR: Rx error queue
+ */enum dpni_queue_type {
+ DPNI_QUEUE_RX,
+ DPNI_QUEUE_TX,
+ DPNI_QUEUE_TX_CONFIRM,
+ DPNI_QUEUE_RX_ERR,
+};
+
+int dpni_get_buffer_layout(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ struct dpni_buffer_layout *layout);
+
+int dpni_set_buffer_layout(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ const struct dpni_buffer_layout *layout);
+
+/**
+ * enum dpni_offload - Identifies a type of offload targeted by the command
+ * @DPNI_OFF_RX_L3_CSUM: Rx L3 checksum validation
+ * @DPNI_OFF_RX_L4_CSUM: Rx L4 checksum validation
+ * @DPNI_OFF_TX_L3_CSUM: Tx L3 checksum generation
+ * @DPNI_OFF_TX_L4_CSUM: Tx L4 checksum generation
+ */
+enum dpni_offload {
+ DPNI_OFF_RX_L3_CSUM,
+ DPNI_OFF_RX_L4_CSUM,
+ DPNI_OFF_TX_L3_CSUM,
+ DPNI_OFF_TX_L4_CSUM,
+};
+
+int dpni_set_offload(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_offload type,
+ u32 config);
+
+int dpni_get_offload(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_offload type,
+ u32 *config);
+
+int dpni_get_qdid(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ u16 *qdid);
+
+int dpni_get_tx_data_offset(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 *data_offset);
+
+#define DPNI_STATISTICS_CNT 7
+
+union dpni_statistics {
+ /**
+ * struct page_0 - Page_0 statistics structure
+ * @ingress_all_frames: Ingress frame count
+ * @ingress_all_bytes: Ingress byte count
+ * @ingress_multicast_frames: Ingress multicast frame count
+ * @ingress_multicast_bytes: Ingress multicast byte count
+ * @ingress_broadcast_frames: Ingress broadcast frame count
+ * @ingress_broadcast_bytes: Ingress broadcast byte count
+ */
+ struct {
+ u64 ingress_all_frames;
+ u64 ingress_all_bytes;
+ u64 ingress_multicast_frames;
+ u64 ingress_multicast_bytes;
+ u64 ingress_broadcast_frames;
+ u64 ingress_broadcast_bytes;
+ } page_0;
+ /**
+ * struct page_1 - Page_1 statistics structure
+ * @egress_all_frames: Egress frame count
+ * @egress_all_bytes: Egress byte count
+ * @egress_multicast_frames: Egress multicast frame count
+ * @egress_multicast_bytes: Egress multicast byte count
+ * @egress_broadcast_frames: Egress broadcast frame count
+ * @egress_broadcast_bytes: Egress broadcast byte count
+ */
+ struct {
+ u64 egress_all_frames;
+ u64 egress_all_bytes;
+ u64 egress_multicast_frames;
+ u64 egress_multicast_bytes;
+ u64 egress_broadcast_frames;
+ u64 egress_broadcast_bytes;
+ } page_1;
+ /**
+ * struct page_2 - Page_2 statistics structure
+ * @ingress_filtered_frames: Ingress filtered frame count
+ * @ingress_discarded_frames: Ingress discarded frame count
+ * @ingress_nobuffer_discards: Ingress discarded frame count
+ * due to lack of buffers
+ * @egress_discarded_frames: Egress discarded frame count
+ * @egress_confirmed_frames: Egress confirmed frame count
+ */
+ struct {
+ u64 ingress_filtered_frames;
+ u64 ingress_discarded_frames;
+ u64 ingress_nobuffer_discards;
+ u64 egress_discarded_frames;
+ u64 egress_confirmed_frames;
+ } page_2;
+ /**
+ * struct page_3 - Page_3 statistics structure with values for the
+ * selected TC
+ * @ceetm_dequeue_bytes: Cumulative count of the number of bytes
+ * dequeued
+ * @ceetm_dequeue_frames: Cumulative count of the number of frames
+ * dequeued
+ * @ceetm_reject_bytes: Cumulative count of the number of bytes in all
+ * frames whose enqueue was rejected
+ * @ceetm_reject_frames: Cumulative count of all frame enqueues
+ * rejected
+ */
+ struct {
+ u64 ceetm_dequeue_bytes;
+ u64 ceetm_dequeue_frames;
+ u64 ceetm_reject_bytes;
+ u64 ceetm_reject_frames;
+ } page_3;
+ /**
+ * struct raw - raw statistics structure
+ */
+ struct {
+ u64 counter[DPNI_STATISTICS_CNT];
+ } raw;
+};
+
+int dpni_get_statistics(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 page,
+ u8 param,
+ union dpni_statistics *stat);
+
+int dpni_reset_statistics(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+/**
+ * Enable auto-negotiation
+ */
+#define DPNI_LINK_OPT_AUTONEG 0x0000000000000001ULL
+/**
+ * Enable half-duplex mode
+ */
+#define DPNI_LINK_OPT_HALF_DUPLEX 0x0000000000000002ULL
+/**
+ * Enable pause frames
+ */
+#define DPNI_LINK_OPT_PAUSE 0x0000000000000004ULL
+/**
+ * Enable a-symmetric pause frames
+ */
+#define DPNI_LINK_OPT_ASYM_PAUSE 0x0000000000000008ULL
+/**
+ * Enable priority flow control pause frames
+ */
+#define DPNI_LINK_OPT_PFC_PAUSE 0x0000000000000010ULL
+
+/**
+ * struct - Structure representing DPNI link configuration
+ * @rate: Rate
+ * @options: Mask of available options; use 'DPNI_LINK_OPT_<X>' values
+ */
+struct dpni_link_cfg {
+ u32 rate;
+ u64 options;
+};
+
+int dpni_set_link_cfg(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_link_cfg *cfg);
+
+/**
+ * struct dpni_link_state - Structure representing DPNI link state
+ * @rate: Rate
+ * @options: Mask of available options; use 'DPNI_LINK_OPT_<X>' values
+ * @up: Link state; '0' for down, '1' for up
+ */
+struct dpni_link_state {
+ u32 rate;
+ u64 options;
+ int up;
+};
+
+int dpni_get_link_state(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpni_link_state *state);
+
+/**
+ * struct dpni_tx_shaping - Structure representing DPNI tx shaping configuration
+ * @rate_limit: rate in Mbps
+ * @max_burst_size: burst size in bytes (up to 64KB)
+ */
+struct dpni_tx_shaping_cfg {
+ u32 rate_limit;
+ u16 max_burst_size;
+};
+
+int dpni_set_tx_shaping(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_tx_shaping_cfg *tx_cr_shaper,
+ const struct dpni_tx_shaping_cfg *tx_er_shaper,
+ int coupled);
+
+int dpni_set_max_frame_length(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 max_frame_length);
+
+int dpni_get_max_frame_length(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 *max_frame_length);
+
+int dpni_set_multicast_promisc(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int en);
+
+int dpni_get_multicast_promisc(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int *en);
+
+int dpni_set_unicast_promisc(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int en);
+
+int dpni_get_unicast_promisc(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int *en);
+
+int dpni_set_primary_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const u8 mac_addr[6]);
+
+int dpni_get_primary_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 mac_addr[6]);
+
+int dpni_get_port_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cm_flags,
+ u16 token,
+ u8 mac_addr[6]);
+
+int dpni_add_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const u8 mac_addr[6]);
+
+int dpni_remove_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const u8 mac_addr[6]);
+
+int dpni_clear_mac_filters(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int unicast,
+ int multicast);
+
+/**
+ * enum dpni_dist_mode - DPNI distribution mode
+ * @DPNI_DIST_MODE_NONE: No distribution
+ * @DPNI_DIST_MODE_HASH: Use hash distribution; only relevant if
+ * the 'DPNI_OPT_DIST_HASH' option was set at DPNI creation
+ * @DPNI_DIST_MODE_FS: Use explicit flow steering; only relevant if
+ * the 'DPNI_OPT_DIST_FS' option was set at DPNI creation
+ */
+enum dpni_dist_mode {
+ DPNI_DIST_MODE_NONE = 0,
+ DPNI_DIST_MODE_HASH = 1,
+ DPNI_DIST_MODE_FS = 2
+};
+
+/**
+ * enum dpni_fs_miss_action - DPNI Flow Steering miss action
+ * @DPNI_FS_MISS_DROP: In case of no-match, drop the frame
+ * @DPNI_FS_MISS_EXPLICIT_FLOWID: In case of no-match, use explicit flow-id
+ * @DPNI_FS_MISS_HASH: In case of no-match, distribute using hash
+ */
+enum dpni_fs_miss_action {
+ DPNI_FS_MISS_DROP = 0,
+ DPNI_FS_MISS_EXPLICIT_FLOWID = 1,
+ DPNI_FS_MISS_HASH = 2
+};
+
+/**
+ * struct dpni_fs_tbl_cfg - Flow Steering table configuration
+ * @miss_action: Miss action selection
+ * @default_flow_id: Used when 'miss_action = DPNI_FS_MISS_EXPLICIT_FLOWID'
+ */
+struct dpni_fs_tbl_cfg {
+ enum dpni_fs_miss_action miss_action;
+ u16 default_flow_id;
+};
+
+int dpni_prepare_key_cfg(const struct dpkg_profile_cfg *cfg,
+ u8 *key_cfg_buf);
+
+/**
+ * struct dpni_qos_tbl_cfg - Structure representing QOS table configuration
+ * @key_cfg_iova: I/O virtual address of 256 bytes DMA-able memory filled with
+ * key extractions to be used as the QoS criteria by calling
+ * dpkg_prepare_key_cfg()
+ * @discard_on_miss: Set to '1' to discard frames in case of no match (miss);
+ * '0' to use the 'default_tc' in such cases
+ * @default_tc: Used in case of no-match and 'discard_on_miss'= 0
+ */
+struct dpni_qos_tbl_cfg {
+ u64 key_cfg_iova;
+ int discard_on_miss;
+ u8 default_tc;
+};
+
+int dpni_set_qos_table(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_qos_tbl_cfg *cfg);
+
+/**
+ * enum dpni_tx_schedule_mode - DPNI Tx scheduling mode
+ * @DPNI_TX_SCHED_STRICT_PRIORITY: strict priority
+ * @DPNI_TX_SCHED_WEIGHTED_A: weighted based scheduling in group A
+ * @DPNI_TX_SCHED_WEIGHTED_B: weighted based scheduling in group B
+ */
+enum dpni_tx_schedule_mode {
+ DPNI_TX_SCHED_STRICT_PRIORITY = 0,
+ DPNI_TX_SCHED_WEIGHTED_A,
+ DPNI_TX_SCHED_WEIGHTED_B,
+};
+
+/**
+ * struct dpni_tx_schedule_cfg - Structure representing Tx scheduling conf
+ * @mode: Scheduling mode
+ * @delta_bandwidth: Bandwidth represented in weights from 100 to 10000;
+ * not applicable for 'strict-priority' mode;
+ */
+struct dpni_tx_schedule_cfg {
+ enum dpni_tx_schedule_mode mode;
+ u16 delta_bandwidth;
+};
+
+/**
+ * struct dpni_tx_priorities_cfg - Structure representing transmission
+ * priorities for DPNI TCs
+ * @tc_sched: An array of traffic-classes
+ * @prio_group_A: Priority of group A
+ * @prio_group_B: Priority of group B
+ * @separate_groups: Treat A and B groups as separate
+ * @ceetm_ch_idx: ceetm channel index to apply the changes
+ */
+struct dpni_tx_priorities_cfg {
+ struct dpni_tx_schedule_cfg tc_sched[DPNI_MAX_TC];
+ u8 prio_group_A;
+ u8 prio_group_B;
+ u8 separate_groups;
+};
+
+int dpni_set_tx_priorities(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_tx_priorities_cfg *cfg);
+
+/**
+ * struct dpni_rx_tc_dist_cfg - Rx traffic class distribution configuration
+ * @dist_size: Set the distribution size;
+ * supported values: 1,2,3,4,6,7,8,12,14,16,24,28,32,48,56,64,96,
+ * 112,128,192,224,256,384,448,512,768,896,1024
+ * @dist_mode: Distribution mode
+ * @key_cfg_iova: I/O virtual address of 256 bytes DMA-able memory filled with
+ * the extractions to be used for the distribution key by calling
+ * dpni_prepare_key_cfg() relevant only when
+ * 'dist_mode != DPNI_DIST_MODE_NONE', otherwise it can be '0'
+ * @fs_cfg: Flow Steering table configuration; only relevant if
+ * 'dist_mode = DPNI_DIST_MODE_FS'
+ */
+struct dpni_rx_tc_dist_cfg {
+ u16 dist_size;
+ enum dpni_dist_mode dist_mode;
+ u64 key_cfg_iova;
+ struct dpni_fs_tbl_cfg fs_cfg;
+};
+
+int dpni_set_rx_tc_dist(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 tc_id,
+ const struct dpni_rx_tc_dist_cfg *cfg);
+
+/**
+ * enum dpni_dest - DPNI destination types
+ * @DPNI_DEST_NONE: Unassigned destination; The queue is set in parked mode and
+ * does not generate FQDAN notifications; user is expected to
+ * dequeue from the queue based on polling or other user-defined
+ * method
+ * @DPNI_DEST_DPIO: The queue is set in schedule mode and generates FQDAN
+ * notifications to the specified DPIO; user is expected to dequeue
+ * from the queue only after notification is received
+ * @DPNI_DEST_DPCON: The queue is set in schedule mode and does not generate
+ * FQDAN notifications, but is connected to the specified DPCON
+ * object; user is expected to dequeue from the DPCON channel
+ */
+enum dpni_dest {
+ DPNI_DEST_NONE = 0,
+ DPNI_DEST_DPIO = 1,
+ DPNI_DEST_DPCON = 2
+};
+
+/**
+ * struct dpni_queue - Queue structure
+ * @user_context: User data, presented to the user along with any frames from
+ * this queue. Not relevant for Tx queues.
+ */
+struct dpni_queue {
+/**
+ * struct destination - Destination structure
+ * @id: ID of the destination, only relevant if DEST_TYPE is > 0.
+ * Identifies either a DPIO or a DPCON object. Not relevant for
+ * Tx queues.
+ * @type: May be one of the following:
+ * 0 - No destination, queue can be manually queried, but will not
+ * push traffic or notifications to a DPIO;
+ * 1 - The destination is a DPIO. When traffic becomes available in
+ * the queue a FQDAN (FQ data available notification) will be
+ * generated to selected DPIO;
+ * 2 - The destination is a DPCON. The queue is associated with a
+ * DPCON object for the purpose of scheduling between multiple
+ * queues. The DPCON may be independently configured to
+ * generate notifications. Not relevant for Tx queues.
+ * @hold_active: Hold active, maintains a queue scheduled for longer
+ * in a DPIO during dequeue to reduce spread of traffic.
+ * Only relevant if queues are not affined to a single DPIO.
+ */
+ struct {
+ u16 id;
+ enum dpni_dest type;
+ char hold_active;
+ u8 priority;
+ } destination;
+ u64 user_context;
+ struct {
+ u64 value;
+ char stash_control;
+ } flc;
+};
+
+/**
+ * struct dpni_queue_id - Queue identification, used for enqueue commands
+ * or queue control
+ * @fqid: FQID used for enqueueing to and/or configuration of this specific FQ
+ * @qdbin: Queueing bin, used to enqueue using QDID, DQBIN, QPRI. Only relevant
+ * for Tx queues.
+ */
+struct dpni_queue_id {
+ u32 fqid;
+ u16 qdbin;
+};
+
+/**
+ * Set User Context
+ */
+#define DPNI_QUEUE_OPT_USER_CTX 0x00000001
+#define DPNI_QUEUE_OPT_DEST 0x00000002
+#define DPNI_QUEUE_OPT_FLC 0x00000004
+#define DPNI_QUEUE_OPT_HOLD_ACTIVE 0x00000008
+
+int dpni_set_queue(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ u8 tc,
+ u8 index,
+ u8 options,
+ const struct dpni_queue *queue);
+
+int dpni_get_queue(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ u8 tc,
+ u8 index,
+ struct dpni_queue *queue,
+ struct dpni_queue_id *qid);
+
+/**
+ * enum dpni_congestion_unit - DPNI congestion units
+ * @DPNI_CONGESTION_UNIT_BYTES: bytes units
+ * @DPNI_CONGESTION_UNIT_FRAMES: frames units
+ */
+enum dpni_congestion_unit {
+ DPNI_CONGESTION_UNIT_BYTES = 0,
+ DPNI_CONGESTION_UNIT_FRAMES
+};
+
+/**
+ * enum dpni_congestion_point - Structure representing congestion point
+ * @DPNI_CP_QUEUE: Set taildrop per queue, identified by QUEUE_TYPE, TC and
+ * QUEUE_INDEX
+ * @DPNI_CP_GROUP: Set taildrop per queue group. Depending on options used to
+ * define the DPNI this can be either per TC (default) or per
+ * interface (DPNI_OPT_SHARED_CONGESTION set at DPNI create).
+ * QUEUE_INDEX is ignored if this type is used.
+ */
+enum dpni_congestion_point {
+ DPNI_CP_QUEUE,
+ DPNI_CP_GROUP,
+};
+
+/**
+ * struct dpni_dest_cfg - Structure representing DPNI destination parameters
+ * @dest_type: Destination type
+ * @dest_id: Either DPIO ID or DPCON ID, depending on the destination type
+ * @priority: Priority selection within the DPIO or DPCON channel; valid
+ * values are 0-1 or 0-7, depending on the number of priorities
+ * in that channel; not relevant for 'DPNI_DEST_NONE' option
+ */
+struct dpni_dest_cfg {
+ enum dpni_dest dest_type;
+ int dest_id;
+ u8 priority;
+};
+
+/* DPNI congestion options */
+
+/**
+ * CSCN message is written to message_iova once entering a
+ * congestion state (see 'threshold_entry')
+ */
+#define DPNI_CONG_OPT_WRITE_MEM_ON_ENTER 0x00000001
+/**
+ * CSCN message is written to message_iova once exiting a
+ * congestion state (see 'threshold_exit')
+ */
+#define DPNI_CONG_OPT_WRITE_MEM_ON_EXIT 0x00000002
+/**
+ * CSCN write will attempt to allocate into a cache (coherent write);
+ * valid only if 'DPNI_CONG_OPT_WRITE_MEM_<X>' is selected
+ */
+#define DPNI_CONG_OPT_COHERENT_WRITE 0x00000004
+/**
+ * if 'dest_cfg.dest_type != DPNI_DEST_NONE' CSCN message is sent to
+ * DPIO/DPCON's WQ channel once entering a congestion state
+ * (see 'threshold_entry')
+ */
+#define DPNI_CONG_OPT_NOTIFY_DEST_ON_ENTER 0x00000008
+/**
+ * if 'dest_cfg.dest_type != DPNI_DEST_NONE' CSCN message is sent to
+ * DPIO/DPCON's WQ channel once exiting a congestion state
+ * (see 'threshold_exit')
+ */
+#define DPNI_CONG_OPT_NOTIFY_DEST_ON_EXIT 0x00000010
+/**
+ * if 'dest_cfg.dest_type != DPNI_DEST_NONE' when the CSCN is written to the
+ * sw-portal's DQRR, the DQRI interrupt is asserted immediately (if enabled)
+ */
+#define DPNI_CONG_OPT_INTR_COALESCING_DISABLED 0x00000020
+/**
+ * This congestion will trigger flow control or priority flow control.
+ * This will have effect only if flow control is enabled with
+ * dpni_set_link_cfg().
+ */
+#define DPNI_CONG_OPT_FLOW_CONTROL 0x00000040
+
+/**
+ * struct dpni_congestion_notification_cfg - congestion notification
+ * configuration
+ * @units: Units type
+ * @threshold_entry: Above this threshold we enter a congestion state.
+ * set it to '0' to disable it
+ * @threshold_exit: Below this threshold we exit the congestion state.
+ * @message_ctx: The context that will be part of the CSCN message
+ * @message_iova: I/O virtual address (must be in DMA-able memory),
+ * must be 16B aligned; valid only if 'DPNI_CONG_OPT_WRITE_MEM_<X>'
+ * is contained in 'options'
+ * @dest_cfg: CSCN can be send to either DPIO or DPCON WQ channel
+ * @notification_mode: Mask of available options; use 'DPNI_CONG_OPT_<X>' values
+ */
+
+struct dpni_congestion_notification_cfg {
+ enum dpni_congestion_unit units;
+ u32 threshold_entry;
+ u32 threshold_exit;
+ u64 message_ctx;
+ u64 message_iova;
+ struct dpni_dest_cfg dest_cfg;
+ u16 notification_mode;
+};
+
+/** Compose TC parameter for function dpni_set_congestion_notification()
+ * and dpni_get_congestion_notification().
+ */
+#define DPNI_BUILD_CH_TC(ceetm_ch_idx, tc) \
+ ((((ceetm_ch_idx) & 0x0F) << 4) | ((tc) & 0x0F))
+
+int dpni_set_congestion_notification(
+ struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ u8 tc_id,
+ const struct dpni_congestion_notification_cfg *cfg);
+
+int dpni_get_congestion_notification(
+ struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ u8 tc_id,
+ struct dpni_congestion_notification_cfg *cfg);
+
+/**
+ * struct dpni_taildrop - Structure representing the taildrop
+ * @enable: Indicates whether the taildrop is active or not.
+ * @units: Indicates the unit of THRESHOLD. Queue taildrop only supports
+ * byte units, this field is ignored and assumed = 0 if
+ * CONGESTION_POINT is 0.
+ * @threshold: Threshold value, in units identified by UNITS field. Value 0
+ * cannot be used as a valid taildrop threshold, THRESHOLD must
+ * be > 0 if the taildrop is enabled.
+ */
+struct dpni_taildrop {
+ char enable;
+ enum dpni_congestion_unit units;
+ u32 threshold;
+};
+
+int dpni_set_taildrop(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_congestion_point cg_point,
+ enum dpni_queue_type q_type,
+ u8 tc,
+ u8 q_index,
+ struct dpni_taildrop *taildrop);
+
+int dpni_get_taildrop(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_congestion_point cg_point,
+ enum dpni_queue_type q_type,
+ u8 tc,
+ u8 q_index,
+ struct dpni_taildrop *taildrop);
+
+/**
+ * struct dpni_rule_cfg - Rule configuration for table lookup
+ * @key_iova: I/O virtual address of the key (must be in DMA-able memory)
+ * @mask_iova: I/O virtual address of the mask (must be in DMA-able memory)
+ * @key_size: key and mask size (in bytes)
+ */
+struct dpni_rule_cfg {
+ u64 key_iova;
+ u64 mask_iova;
+ u8 key_size;
+};
+
+int dpni_get_api_version(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 *major_ver,
+ u16 *minor_ver);
+
+int dpni_add_qos_entry(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_rule_cfg *cfg,
+ u8 tc_id,
+ u16 index);
+
+int dpni_remove_qos_entry(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_rule_cfg *cfg);
+
+int dpni_clear_qos_table(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+/**
+ * Discard matching traffic. If set, this takes precedence over any other
+ * configuration and matching traffic is always discarded.
+ */
+ #define DPNI_FS_OPT_DISCARD 0x1
+
+/**
+ * Set FLC value. If set, flc member of struct dpni_fs_action_cfg is used to
+ * override the FLC value set per queue.
+ * For more details check the Frame Descriptor section in the hardware
+ * documentation.
+ */
+#define DPNI_FS_OPT_SET_FLC 0x2
+
+/*
+ * Indicates whether the 6 lowest significant bits of FLC are used for stash
+ * control. If set, the 6 least significant bits in value are interpreted as
+ * follows:
+ * - bits 0-1: indicates the number of 64 byte units of context that are
+ * stashed. FLC value is interpreted as a memory address in this case,
+ * excluding the 6 LS bits.
+ * - bits 2-3: indicates the number of 64 byte units of frame annotation
+ * to be stashed. Annotation is placed at FD[ADDR].
+ * - bits 4-5: indicates the number of 64 byte units of frame data to be
+ * stashed. Frame data is placed at FD[ADDR] + FD[OFFSET].
+ * This flag is ignored if DPNI_FS_OPT_SET_FLC is not specified.
+ */
+#define DPNI_FS_OPT_SET_STASH_CONTROL 0x4
+
+/**
+ * struct dpni_fs_action_cfg - Action configuration for table look-up
+ * @flc: FLC value for traffic matching this rule. Please check the
+ * Frame Descriptor section in the hardware documentation for
+ * more information.
+ * @flow_id: Identifies the Rx queue used for matching traffic. Supported
+ * values are in range 0 to num_queue-1.
+ * @options: Any combination of DPNI_FS_OPT_ values.
+ */
+struct dpni_fs_action_cfg {
+ u64 flc;
+ u16 flow_id;
+ u16 options;
+};
+
+int dpni_add_fs_entry(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 tc_id,
+ u16 index,
+ const struct dpni_rule_cfg *cfg,
+ const struct dpni_fs_action_cfg *action);
+
+int dpni_remove_fs_entry(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 tc_id,
+ const struct dpni_rule_cfg *cfg);
+
+/**
+ * When used for queue_idx in function dpni_set_rx_dist_default_queue
+ * will signal to dpni to drop all unclassified frames
+ */
+#define DPNI_FS_MISS_DROP ((uint16_t)-1)
+
+/**
+ * struct dpni_rx_dist_cfg - distribution configuration
+ * @dist_size: distribution size; supported values: 1,2,3,4,6,7,8,
+ * 12,14,16,24,28,32,48,56,64,96,112,128,192,224,256,384,448,
+ * 512,768,896,1024
+ * @key_cfg_iova: I/O virtual address of 256 bytes DMA-able memory filled with
+ * the extractions to be used for the distribution key by calling
+ * dpkg_prepare_key_cfg() relevant only when enable!=0 otherwise
+ * it can be '0'
+ * @enable: enable/disable the distribution.
+ * @tc: TC id for which distribution is set
+ * @fs_miss_flow_id: when packet misses all rules from flow steering table and
+ * hash is disabled it will be put into this queue id; use
+ * DPNI_FS_MISS_DROP to drop frames. The value of this field is
+ * used only when flow steering distribution is enabled and hash
+ * distribution is disabled
+ */
+struct dpni_rx_dist_cfg {
+ u16 dist_size;
+ u64 key_cfg_iova;
+ u8 enable;
+ u8 tc;
+ u16 fs_miss_flow_id;
+};
+
+int dpni_set_rx_fs_dist(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_rx_dist_cfg *cfg);
+
+int dpni_set_rx_hash_dist(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_rx_dist_cfg *cfg);
+
+#endif /* __FSL_DPNI_H */
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethernet/net.h
@@ -0,0 +1,480 @@
+/* Copyright 2013-2015 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __FSL_NET_H
+#define __FSL_NET_H
+
+#define LAST_HDR_INDEX 0xFFFFFFFF
+
+/*****************************************************************************/
+/* Protocol fields */
+/*****************************************************************************/
+
+/************************* Ethernet fields *********************************/
+#define NH_FLD_ETH_DA (1)
+#define NH_FLD_ETH_SA (NH_FLD_ETH_DA << 1)
+#define NH_FLD_ETH_LENGTH (NH_FLD_ETH_DA << 2)
+#define NH_FLD_ETH_TYPE (NH_FLD_ETH_DA << 3)
+#define NH_FLD_ETH_FINAL_CKSUM (NH_FLD_ETH_DA << 4)
+#define NH_FLD_ETH_PADDING (NH_FLD_ETH_DA << 5)
+#define NH_FLD_ETH_ALL_FIELDS ((NH_FLD_ETH_DA << 6) - 1)
+
+#define NH_FLD_ETH_ADDR_SIZE 6
+
+/*************************** VLAN fields ***********************************/
+#define NH_FLD_VLAN_VPRI (1)
+#define NH_FLD_VLAN_CFI (NH_FLD_VLAN_VPRI << 1)
+#define NH_FLD_VLAN_VID (NH_FLD_VLAN_VPRI << 2)
+#define NH_FLD_VLAN_LENGTH (NH_FLD_VLAN_VPRI << 3)
+#define NH_FLD_VLAN_TYPE (NH_FLD_VLAN_VPRI << 4)
+#define NH_FLD_VLAN_ALL_FIELDS ((NH_FLD_VLAN_VPRI << 5) - 1)
+
+#define NH_FLD_VLAN_TCI (NH_FLD_VLAN_VPRI | \
+ NH_FLD_VLAN_CFI | \
+ NH_FLD_VLAN_VID)
+
+/************************ IP (generic) fields ******************************/
+#define NH_FLD_IP_VER (1)
+#define NH_FLD_IP_DSCP (NH_FLD_IP_VER << 2)
+#define NH_FLD_IP_ECN (NH_FLD_IP_VER << 3)
+#define NH_FLD_IP_PROTO (NH_FLD_IP_VER << 4)
+#define NH_FLD_IP_SRC (NH_FLD_IP_VER << 5)
+#define NH_FLD_IP_DST (NH_FLD_IP_VER << 6)
+#define NH_FLD_IP_TOS_TC (NH_FLD_IP_VER << 7)
+#define NH_FLD_IP_ID (NH_FLD_IP_VER << 8)
+#define NH_FLD_IP_ALL_FIELDS ((NH_FLD_IP_VER << 9) - 1)
+
+#define NH_FLD_IP_PROTO_SIZE 1
+
+/***************************** IPV4 fields *********************************/
+#define NH_FLD_IPV4_VER (1)
+#define NH_FLD_IPV4_HDR_LEN (NH_FLD_IPV4_VER << 1)
+#define NH_FLD_IPV4_TOS (NH_FLD_IPV4_VER << 2)
+#define NH_FLD_IPV4_TOTAL_LEN (NH_FLD_IPV4_VER << 3)
+#define NH_FLD_IPV4_ID (NH_FLD_IPV4_VER << 4)
+#define NH_FLD_IPV4_FLAG_D (NH_FLD_IPV4_VER << 5)
+#define NH_FLD_IPV4_FLAG_M (NH_FLD_IPV4_VER << 6)
+#define NH_FLD_IPV4_OFFSET (NH_FLD_IPV4_VER << 7)
+#define NH_FLD_IPV4_TTL (NH_FLD_IPV4_VER << 8)
+#define NH_FLD_IPV4_PROTO (NH_FLD_IPV4_VER << 9)
+#define NH_FLD_IPV4_CKSUM (NH_FLD_IPV4_VER << 10)
+#define NH_FLD_IPV4_SRC_IP (NH_FLD_IPV4_VER << 11)
+#define NH_FLD_IPV4_DST_IP (NH_FLD_IPV4_VER << 12)
+#define NH_FLD_IPV4_OPTS (NH_FLD_IPV4_VER << 13)
+#define NH_FLD_IPV4_OPTS_COUNT (NH_FLD_IPV4_VER << 14)
+#define NH_FLD_IPV4_ALL_FIELDS ((NH_FLD_IPV4_VER << 15) - 1)
+
+#define NH_FLD_IPV4_ADDR_SIZE 4
+#define NH_FLD_IPV4_PROTO_SIZE 1
+
+/***************************** IPV6 fields *********************************/
+#define NH_FLD_IPV6_VER (1)
+#define NH_FLD_IPV6_TC (NH_FLD_IPV6_VER << 1)
+#define NH_FLD_IPV6_SRC_IP (NH_FLD_IPV6_VER << 2)
+#define NH_FLD_IPV6_DST_IP (NH_FLD_IPV6_VER << 3)
+#define NH_FLD_IPV6_NEXT_HDR (NH_FLD_IPV6_VER << 4)
+#define NH_FLD_IPV6_FL (NH_FLD_IPV6_VER << 5)
+#define NH_FLD_IPV6_HOP_LIMIT (NH_FLD_IPV6_VER << 6)
+#define NH_FLD_IPV6_ID (NH_FLD_IPV6_VER << 7)
+#define NH_FLD_IPV6_ALL_FIELDS ((NH_FLD_IPV6_VER << 8) - 1)
+
+#define NH_FLD_IPV6_ADDR_SIZE 16
+#define NH_FLD_IPV6_NEXT_HDR_SIZE 1
+
+/***************************** ICMP fields *********************************/
+#define NH_FLD_ICMP_TYPE (1)
+#define NH_FLD_ICMP_CODE (NH_FLD_ICMP_TYPE << 1)
+#define NH_FLD_ICMP_CKSUM (NH_FLD_ICMP_TYPE << 2)
+#define NH_FLD_ICMP_ID (NH_FLD_ICMP_TYPE << 3)
+#define NH_FLD_ICMP_SQ_NUM (NH_FLD_ICMP_TYPE << 4)
+#define NH_FLD_ICMP_ALL_FIELDS ((NH_FLD_ICMP_TYPE << 5) - 1)
+
+#define NH_FLD_ICMP_CODE_SIZE 1
+#define NH_FLD_ICMP_TYPE_SIZE 1
+
+/***************************** IGMP fields *********************************/
+#define NH_FLD_IGMP_VERSION (1)
+#define NH_FLD_IGMP_TYPE (NH_FLD_IGMP_VERSION << 1)
+#define NH_FLD_IGMP_CKSUM (NH_FLD_IGMP_VERSION << 2)
+#define NH_FLD_IGMP_DATA (NH_FLD_IGMP_VERSION << 3)
+#define NH_FLD_IGMP_ALL_FIELDS ((NH_FLD_IGMP_VERSION << 4) - 1)
+
+/***************************** TCP fields **********************************/
+#define NH_FLD_TCP_PORT_SRC (1)
+#define NH_FLD_TCP_PORT_DST (NH_FLD_TCP_PORT_SRC << 1)
+#define NH_FLD_TCP_SEQ (NH_FLD_TCP_PORT_SRC << 2)
+#define NH_FLD_TCP_ACK (NH_FLD_TCP_PORT_SRC << 3)
+#define NH_FLD_TCP_OFFSET (NH_FLD_TCP_PORT_SRC << 4)
+#define NH_FLD_TCP_FLAGS (NH_FLD_TCP_PORT_SRC << 5)
+#define NH_FLD_TCP_WINDOW (NH_FLD_TCP_PORT_SRC << 6)
+#define NH_FLD_TCP_CKSUM (NH_FLD_TCP_PORT_SRC << 7)
+#define NH_FLD_TCP_URGPTR (NH_FLD_TCP_PORT_SRC << 8)
+#define NH_FLD_TCP_OPTS (NH_FLD_TCP_PORT_SRC << 9)
+#define NH_FLD_TCP_OPTS_COUNT (NH_FLD_TCP_PORT_SRC << 10)
+#define NH_FLD_TCP_ALL_FIELDS ((NH_FLD_TCP_PORT_SRC << 11) - 1)
+
+#define NH_FLD_TCP_PORT_SIZE 2
+
+/***************************** UDP fields **********************************/
+#define NH_FLD_UDP_PORT_SRC (1)
+#define NH_FLD_UDP_PORT_DST (NH_FLD_UDP_PORT_SRC << 1)
+#define NH_FLD_UDP_LEN (NH_FLD_UDP_PORT_SRC << 2)
+#define NH_FLD_UDP_CKSUM (NH_FLD_UDP_PORT_SRC << 3)
+#define NH_FLD_UDP_ALL_FIELDS ((NH_FLD_UDP_PORT_SRC << 4) - 1)
+
+#define NH_FLD_UDP_PORT_SIZE 2
+
+/*************************** UDP-lite fields *******************************/
+#define NH_FLD_UDP_LITE_PORT_SRC (1)
+#define NH_FLD_UDP_LITE_PORT_DST (NH_FLD_UDP_LITE_PORT_SRC << 1)
+#define NH_FLD_UDP_LITE_ALL_FIELDS \
+ ((NH_FLD_UDP_LITE_PORT_SRC << 2) - 1)
+
+#define NH_FLD_UDP_LITE_PORT_SIZE 2
+
+/*************************** UDP-encap-ESP fields **************************/
+#define NH_FLD_UDP_ENC_ESP_PORT_SRC (1)
+#define NH_FLD_UDP_ENC_ESP_PORT_DST (NH_FLD_UDP_ENC_ESP_PORT_SRC << 1)
+#define NH_FLD_UDP_ENC_ESP_LEN (NH_FLD_UDP_ENC_ESP_PORT_SRC << 2)
+#define NH_FLD_UDP_ENC_ESP_CKSUM (NH_FLD_UDP_ENC_ESP_PORT_SRC << 3)
+#define NH_FLD_UDP_ENC_ESP_SPI (NH_FLD_UDP_ENC_ESP_PORT_SRC << 4)
+#define NH_FLD_UDP_ENC_ESP_SEQUENCE_NUM (NH_FLD_UDP_ENC_ESP_PORT_SRC << 5)
+#define NH_FLD_UDP_ENC_ESP_ALL_FIELDS \
+ ((NH_FLD_UDP_ENC_ESP_PORT_SRC << 6) - 1)
+
+#define NH_FLD_UDP_ENC_ESP_PORT_SIZE 2
+#define NH_FLD_UDP_ENC_ESP_SPI_SIZE 4
+
+/***************************** SCTP fields *********************************/
+#define NH_FLD_SCTP_PORT_SRC (1)
+#define NH_FLD_SCTP_PORT_DST (NH_FLD_SCTP_PORT_SRC << 1)
+#define NH_FLD_SCTP_VER_TAG (NH_FLD_SCTP_PORT_SRC << 2)
+#define NH_FLD_SCTP_CKSUM (NH_FLD_SCTP_PORT_SRC << 3)
+#define NH_FLD_SCTP_ALL_FIELDS ((NH_FLD_SCTP_PORT_SRC << 4) - 1)
+
+#define NH_FLD_SCTP_PORT_SIZE 2
+
+/***************************** DCCP fields *********************************/
+#define NH_FLD_DCCP_PORT_SRC (1)
+#define NH_FLD_DCCP_PORT_DST (NH_FLD_DCCP_PORT_SRC << 1)
+#define NH_FLD_DCCP_ALL_FIELDS ((NH_FLD_DCCP_PORT_SRC << 2) - 1)
+
+#define NH_FLD_DCCP_PORT_SIZE 2
+
+/***************************** IPHC fields *********************************/
+#define NH_FLD_IPHC_CID (1)
+#define NH_FLD_IPHC_CID_TYPE (NH_FLD_IPHC_CID << 1)
+#define NH_FLD_IPHC_HCINDEX (NH_FLD_IPHC_CID << 2)
+#define NH_FLD_IPHC_GEN (NH_FLD_IPHC_CID << 3)
+#define NH_FLD_IPHC_D_BIT (NH_FLD_IPHC_CID << 4)
+#define NH_FLD_IPHC_ALL_FIELDS ((NH_FLD_IPHC_CID << 5) - 1)
+
+/***************************** SCTP fields *********************************/
+#define NH_FLD_SCTP_CHUNK_DATA_TYPE (1)
+#define NH_FLD_SCTP_CHUNK_DATA_FLAGS (NH_FLD_SCTP_CHUNK_DATA_TYPE << 1)
+#define NH_FLD_SCTP_CHUNK_DATA_LENGTH (NH_FLD_SCTP_CHUNK_DATA_TYPE << 2)
+#define NH_FLD_SCTP_CHUNK_DATA_TSN (NH_FLD_SCTP_CHUNK_DATA_TYPE << 3)
+#define NH_FLD_SCTP_CHUNK_DATA_STREAM_ID (NH_FLD_SCTP_CHUNK_DATA_TYPE << 4)
+#define NH_FLD_SCTP_CHUNK_DATA_STREAM_SQN (NH_FLD_SCTP_CHUNK_DATA_TYPE << 5)
+#define NH_FLD_SCTP_CHUNK_DATA_PAYLOAD_PID (NH_FLD_SCTP_CHUNK_DATA_TYPE << 6)
+#define NH_FLD_SCTP_CHUNK_DATA_UNORDERED (NH_FLD_SCTP_CHUNK_DATA_TYPE << 7)
+#define NH_FLD_SCTP_CHUNK_DATA_BEGGINING (NH_FLD_SCTP_CHUNK_DATA_TYPE << 8)
+#define NH_FLD_SCTP_CHUNK_DATA_END (NH_FLD_SCTP_CHUNK_DATA_TYPE << 9)
+#define NH_FLD_SCTP_CHUNK_DATA_ALL_FIELDS \
+ ((NH_FLD_SCTP_CHUNK_DATA_TYPE << 10) - 1)
+
+/*************************** L2TPV2 fields *********************************/
+#define NH_FLD_L2TPV2_TYPE_BIT (1)
+#define NH_FLD_L2TPV2_LENGTH_BIT (NH_FLD_L2TPV2_TYPE_BIT << 1)
+#define NH_FLD_L2TPV2_SEQUENCE_BIT (NH_FLD_L2TPV2_TYPE_BIT << 2)
+#define NH_FLD_L2TPV2_OFFSET_BIT (NH_FLD_L2TPV2_TYPE_BIT << 3)
+#define NH_FLD_L2TPV2_PRIORITY_BIT (NH_FLD_L2TPV2_TYPE_BIT << 4)
+#define NH_FLD_L2TPV2_VERSION (NH_FLD_L2TPV2_TYPE_BIT << 5)
+#define NH_FLD_L2TPV2_LEN (NH_FLD_L2TPV2_TYPE_BIT << 6)
+#define NH_FLD_L2TPV2_TUNNEL_ID (NH_FLD_L2TPV2_TYPE_BIT << 7)
+#define NH_FLD_L2TPV2_SESSION_ID (NH_FLD_L2TPV2_TYPE_BIT << 8)
+#define NH_FLD_L2TPV2_NS (NH_FLD_L2TPV2_TYPE_BIT << 9)
+#define NH_FLD_L2TPV2_NR (NH_FLD_L2TPV2_TYPE_BIT << 10)
+#define NH_FLD_L2TPV2_OFFSET_SIZE (NH_FLD_L2TPV2_TYPE_BIT << 11)
+#define NH_FLD_L2TPV2_FIRST_BYTE (NH_FLD_L2TPV2_TYPE_BIT << 12)
+#define NH_FLD_L2TPV2_ALL_FIELDS \
+ ((NH_FLD_L2TPV2_TYPE_BIT << 13) - 1)
+
+/*************************** L2TPV3 fields *********************************/
+#define NH_FLD_L2TPV3_CTRL_TYPE_BIT (1)
+#define NH_FLD_L2TPV3_CTRL_LENGTH_BIT (NH_FLD_L2TPV3_CTRL_TYPE_BIT << 1)
+#define NH_FLD_L2TPV3_CTRL_SEQUENCE_BIT (NH_FLD_L2TPV3_CTRL_TYPE_BIT << 2)
+#define NH_FLD_L2TPV3_CTRL_VERSION (NH_FLD_L2TPV3_CTRL_TYPE_BIT << 3)
+#define NH_FLD_L2TPV3_CTRL_LENGTH (NH_FLD_L2TPV3_CTRL_TYPE_BIT << 4)
+#define NH_FLD_L2TPV3_CTRL_CONTROL (NH_FLD_L2TPV3_CTRL_TYPE_BIT << 5)
+#define NH_FLD_L2TPV3_CTRL_SENT (NH_FLD_L2TPV3_CTRL_TYPE_BIT << 6)
+#define NH_FLD_L2TPV3_CTRL_RECV (NH_FLD_L2TPV3_CTRL_TYPE_BIT << 7)
+#define NH_FLD_L2TPV3_CTRL_FIRST_BYTE (NH_FLD_L2TPV3_CTRL_TYPE_BIT << 8)
+#define NH_FLD_L2TPV3_CTRL_ALL_FIELDS \
+ ((NH_FLD_L2TPV3_CTRL_TYPE_BIT << 9) - 1)
+
+#define NH_FLD_L2TPV3_SESS_TYPE_BIT (1)
+#define NH_FLD_L2TPV3_SESS_VERSION (NH_FLD_L2TPV3_SESS_TYPE_BIT << 1)
+#define NH_FLD_L2TPV3_SESS_ID (NH_FLD_L2TPV3_SESS_TYPE_BIT << 2)
+#define NH_FLD_L2TPV3_SESS_COOKIE (NH_FLD_L2TPV3_SESS_TYPE_BIT << 3)
+#define NH_FLD_L2TPV3_SESS_ALL_FIELDS \
+ ((NH_FLD_L2TPV3_SESS_TYPE_BIT << 4) - 1)
+
+/**************************** PPP fields ***********************************/
+#define NH_FLD_PPP_PID (1)
+#define NH_FLD_PPP_COMPRESSED (NH_FLD_PPP_PID << 1)
+#define NH_FLD_PPP_ALL_FIELDS ((NH_FLD_PPP_PID << 2) - 1)
+
+/************************** PPPoE fields ***********************************/
+#define NH_FLD_PPPOE_VER (1)
+#define NH_FLD_PPPOE_TYPE (NH_FLD_PPPOE_VER << 1)
+#define NH_FLD_PPPOE_CODE (NH_FLD_PPPOE_VER << 2)
+#define NH_FLD_PPPOE_SID (NH_FLD_PPPOE_VER << 3)
+#define NH_FLD_PPPOE_LEN (NH_FLD_PPPOE_VER << 4)
+#define NH_FLD_PPPOE_SESSION (NH_FLD_PPPOE_VER << 5)
+#define NH_FLD_PPPOE_PID (NH_FLD_PPPOE_VER << 6)
+#define NH_FLD_PPPOE_ALL_FIELDS ((NH_FLD_PPPOE_VER << 7) - 1)
+
+/************************* PPP-Mux fields **********************************/
+#define NH_FLD_PPPMUX_PID (1)
+#define NH_FLD_PPPMUX_CKSUM (NH_FLD_PPPMUX_PID << 1)
+#define NH_FLD_PPPMUX_COMPRESSED (NH_FLD_PPPMUX_PID << 2)
+#define NH_FLD_PPPMUX_ALL_FIELDS ((NH_FLD_PPPMUX_PID << 3) - 1)
+
+/*********************** PPP-Mux sub-frame fields **************************/
+#define NH_FLD_PPPMUX_SUBFRM_PFF (1)
+#define NH_FLD_PPPMUX_SUBFRM_LXT (NH_FLD_PPPMUX_SUBFRM_PFF << 1)
+#define NH_FLD_PPPMUX_SUBFRM_LEN (NH_FLD_PPPMUX_SUBFRM_PFF << 2)
+#define NH_FLD_PPPMUX_SUBFRM_PID (NH_FLD_PPPMUX_SUBFRM_PFF << 3)
+#define NH_FLD_PPPMUX_SUBFRM_USE_PID (NH_FLD_PPPMUX_SUBFRM_PFF << 4)
+#define NH_FLD_PPPMUX_SUBFRM_ALL_FIELDS \
+ ((NH_FLD_PPPMUX_SUBFRM_PFF << 5) - 1)
+
+/*************************** LLC fields ************************************/
+#define NH_FLD_LLC_DSAP (1)
+#define NH_FLD_LLC_SSAP (NH_FLD_LLC_DSAP << 1)
+#define NH_FLD_LLC_CTRL (NH_FLD_LLC_DSAP << 2)
+#define NH_FLD_LLC_ALL_FIELDS ((NH_FLD_LLC_DSAP << 3) - 1)
+
+/*************************** NLPID fields **********************************/
+#define NH_FLD_NLPID_NLPID (1)
+#define NH_FLD_NLPID_ALL_FIELDS ((NH_FLD_NLPID_NLPID << 1) - 1)
+
+/*************************** SNAP fields ***********************************/
+#define NH_FLD_SNAP_OUI (1)
+#define NH_FLD_SNAP_PID (NH_FLD_SNAP_OUI << 1)
+#define NH_FLD_SNAP_ALL_FIELDS ((NH_FLD_SNAP_OUI << 2) - 1)
+
+/*************************** LLC SNAP fields *******************************/
+#define NH_FLD_LLC_SNAP_TYPE (1)
+#define NH_FLD_LLC_SNAP_ALL_FIELDS ((NH_FLD_LLC_SNAP_TYPE << 1) - 1)
+
+#define NH_FLD_ARP_HTYPE (1)
+#define NH_FLD_ARP_PTYPE (NH_FLD_ARP_HTYPE << 1)
+#define NH_FLD_ARP_HLEN (NH_FLD_ARP_HTYPE << 2)
+#define NH_FLD_ARP_PLEN (NH_FLD_ARP_HTYPE << 3)
+#define NH_FLD_ARP_OPER (NH_FLD_ARP_HTYPE << 4)
+#define NH_FLD_ARP_SHA (NH_FLD_ARP_HTYPE << 5)
+#define NH_FLD_ARP_SPA (NH_FLD_ARP_HTYPE << 6)
+#define NH_FLD_ARP_THA (NH_FLD_ARP_HTYPE << 7)
+#define NH_FLD_ARP_TPA (NH_FLD_ARP_HTYPE << 8)
+#define NH_FLD_ARP_ALL_FIELDS ((NH_FLD_ARP_HTYPE << 9) - 1)
+
+/*************************** RFC2684 fields ********************************/
+#define NH_FLD_RFC2684_LLC (1)
+#define NH_FLD_RFC2684_NLPID (NH_FLD_RFC2684_LLC << 1)
+#define NH_FLD_RFC2684_OUI (NH_FLD_RFC2684_LLC << 2)
+#define NH_FLD_RFC2684_PID (NH_FLD_RFC2684_LLC << 3)
+#define NH_FLD_RFC2684_VPN_OUI (NH_FLD_RFC2684_LLC << 4)
+#define NH_FLD_RFC2684_VPN_IDX (NH_FLD_RFC2684_LLC << 5)
+#define NH_FLD_RFC2684_ALL_FIELDS ((NH_FLD_RFC2684_LLC << 6) - 1)
+
+/*************************** User defined fields ***************************/
+#define NH_FLD_USER_DEFINED_SRCPORT (1)
+#define NH_FLD_USER_DEFINED_PCDID (NH_FLD_USER_DEFINED_SRCPORT << 1)
+#define NH_FLD_USER_DEFINED_ALL_FIELDS \
+ ((NH_FLD_USER_DEFINED_SRCPORT << 2) - 1)
+
+/*************************** Payload fields ********************************/
+#define NH_FLD_PAYLOAD_BUFFER (1)
+#define NH_FLD_PAYLOAD_SIZE (NH_FLD_PAYLOAD_BUFFER << 1)
+#define NH_FLD_MAX_FRM_SIZE (NH_FLD_PAYLOAD_BUFFER << 2)
+#define NH_FLD_MIN_FRM_SIZE (NH_FLD_PAYLOAD_BUFFER << 3)
+#define NH_FLD_PAYLOAD_TYPE (NH_FLD_PAYLOAD_BUFFER << 4)
+#define NH_FLD_FRAME_SIZE (NH_FLD_PAYLOAD_BUFFER << 5)
+#define NH_FLD_PAYLOAD_ALL_FIELDS ((NH_FLD_PAYLOAD_BUFFER << 6) - 1)
+
+/*************************** GRE fields ************************************/
+#define NH_FLD_GRE_TYPE (1)
+#define NH_FLD_GRE_ALL_FIELDS ((NH_FLD_GRE_TYPE << 1) - 1)
+
+/*************************** MINENCAP fields *******************************/
+#define NH_FLD_MINENCAP_SRC_IP (1)
+#define NH_FLD_MINENCAP_DST_IP (NH_FLD_MINENCAP_SRC_IP << 1)
+#define NH_FLD_MINENCAP_TYPE (NH_FLD_MINENCAP_SRC_IP << 2)
+#define NH_FLD_MINENCAP_ALL_FIELDS \
+ ((NH_FLD_MINENCAP_SRC_IP << 3) - 1)
+
+/*************************** IPSEC AH fields *******************************/
+#define NH_FLD_IPSEC_AH_SPI (1)
+#define NH_FLD_IPSEC_AH_NH (NH_FLD_IPSEC_AH_SPI << 1)
+#define NH_FLD_IPSEC_AH_ALL_FIELDS ((NH_FLD_IPSEC_AH_SPI << 2) - 1)
+
+/*************************** IPSEC ESP fields ******************************/
+#define NH_FLD_IPSEC_ESP_SPI (1)
+#define NH_FLD_IPSEC_ESP_SEQUENCE_NUM (NH_FLD_IPSEC_ESP_SPI << 1)
+#define NH_FLD_IPSEC_ESP_ALL_FIELDS ((NH_FLD_IPSEC_ESP_SPI << 2) - 1)
+
+#define NH_FLD_IPSEC_ESP_SPI_SIZE 4
+
+/*************************** MPLS fields ***********************************/
+#define NH_FLD_MPLS_LABEL_STACK (1)
+#define NH_FLD_MPLS_LABEL_STACK_ALL_FIELDS \
+ ((NH_FLD_MPLS_LABEL_STACK << 1) - 1)
+
+/*************************** MACSEC fields *********************************/
+#define NH_FLD_MACSEC_SECTAG (1)
+#define NH_FLD_MACSEC_ALL_FIELDS ((NH_FLD_MACSEC_SECTAG << 1) - 1)
+
+/*************************** GTP fields ************************************/
+#define NH_FLD_GTP_TEID (1)
+
+/* Protocol options */
+
+/* Ethernet options */
+#define NH_OPT_ETH_BROADCAST 1
+#define NH_OPT_ETH_MULTICAST 2
+#define NH_OPT_ETH_UNICAST 3
+#define NH_OPT_ETH_BPDU 4
+
+#define NH_ETH_IS_MULTICAST_ADDR(addr) (addr[0] & 0x01)
+/* also applicable for broadcast */
+
+/* VLAN options */
+#define NH_OPT_VLAN_CFI 1
+
+/* IPV4 options */
+#define NH_OPT_IPV4_UNICAST 1
+#define NH_OPT_IPV4_MULTICAST 2
+#define NH_OPT_IPV4_BROADCAST 3
+#define NH_OPT_IPV4_OPTION 4
+#define NH_OPT_IPV4_FRAG 5
+#define NH_OPT_IPV4_INITIAL_FRAG 6
+
+/* IPV6 options */
+#define NH_OPT_IPV6_UNICAST 1
+#define NH_OPT_IPV6_MULTICAST 2
+#define NH_OPT_IPV6_OPTION 3
+#define NH_OPT_IPV6_FRAG 4
+#define NH_OPT_IPV6_INITIAL_FRAG 5
+
+/* General IP options (may be used for any version) */
+#define NH_OPT_IP_FRAG 1
+#define NH_OPT_IP_INITIAL_FRAG 2
+#define NH_OPT_IP_OPTION 3
+
+/* Minenc. options */
+#define NH_OPT_MINENCAP_SRC_ADDR_PRESENT 1
+
+/* GRE. options */
+#define NH_OPT_GRE_ROUTING_PRESENT 1
+
+/* TCP options */
+#define NH_OPT_TCP_OPTIONS 1
+#define NH_OPT_TCP_CONTROL_HIGH_BITS 2
+#define NH_OPT_TCP_CONTROL_LOW_BITS 3
+
+/* CAPWAP options */
+#define NH_OPT_CAPWAP_DTLS 1
+
+enum net_prot {
+ NET_PROT_NONE = 0,
+ NET_PROT_PAYLOAD,
+ NET_PROT_ETH,
+ NET_PROT_VLAN,
+ NET_PROT_IPV4,
+ NET_PROT_IPV6,
+ NET_PROT_IP,
+ NET_PROT_TCP,
+ NET_PROT_UDP,
+ NET_PROT_UDP_LITE,
+ NET_PROT_IPHC,
+ NET_PROT_SCTP,
+ NET_PROT_SCTP_CHUNK_DATA,
+ NET_PROT_PPPOE,
+ NET_PROT_PPP,
+ NET_PROT_PPPMUX,
+ NET_PROT_PPPMUX_SUBFRM,
+ NET_PROT_L2TPV2,
+ NET_PROT_L2TPV3_CTRL,
+ NET_PROT_L2TPV3_SESS,
+ NET_PROT_LLC,
+ NET_PROT_LLC_SNAP,
+ NET_PROT_NLPID,
+ NET_PROT_SNAP,
+ NET_PROT_MPLS,
+ NET_PROT_IPSEC_AH,
+ NET_PROT_IPSEC_ESP,
+ NET_PROT_UDP_ENC_ESP, /* RFC 3948 */
+ NET_PROT_MACSEC,
+ NET_PROT_GRE,
+ NET_PROT_MINENCAP,
+ NET_PROT_DCCP,
+ NET_PROT_ICMP,
+ NET_PROT_IGMP,
+ NET_PROT_ARP,
+ NET_PROT_CAPWAP_DATA,
+ NET_PROT_CAPWAP_CTRL,
+ NET_PROT_RFC2684,
+ NET_PROT_ICMPV6,
+ NET_PROT_FCOE,
+ NET_PROT_FIP,
+ NET_PROT_ISCSI,
+ NET_PROT_GTP,
+ NET_PROT_USER_DEFINED_L2,
+ NET_PROT_USER_DEFINED_L3,
+ NET_PROT_USER_DEFINED_L4,
+ NET_PROT_USER_DEFINED_L5,
+ NET_PROT_USER_DEFINED_SHIM1,
+ NET_PROT_USER_DEFINED_SHIM2,
+
+ NET_PROT_DUMMY_LAST
+};
+
+/*! IEEE8021.Q */
+#define NH_IEEE8021Q_ETYPE 0x8100
+#define NH_IEEE8021Q_HDR(etype, pcp, dei, vlan_id) \
+ ((((u32)((etype) & 0xFFFF)) << 16) | \
+ (((u32)((pcp) & 0x07)) << 13) | \
+ (((u32)((dei) & 0x01)) << 12) | \
+ (((u32)((vlan_id) & 0xFFF))))
+
+#endif /* __FSL_NET_H */
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethsw/Makefile
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the Freescale DPAA2 Ethernet Switch
+#
+# Copyright 2014-2017 Freescale Semiconductor, Inc.
+# Copyright 2017-2018 NXP
+
+obj-$(CONFIG_FSL_DPAA2_ETHSW) += dpaa2-ethsw.o
+
+dpaa2-ethsw-objs := ethsw.o ethsw-ethtool.o dpsw.o
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethsw/README
@@ -0,0 +1,106 @@
+DPAA2 Ethernet Switch driver
+============================
+
+This file provides documentation for the DPAA2 Ethernet Switch driver
+
+
+Contents
+========
+ Supported Platforms
+ Architecture Overview
+ Creating an Ethernet Switch
+ Features
+
+
+ Supported Platforms
+===================
+This driver provides networking support for Freescale LS2085A, LS2088A
+DPAA2 SoCs.
+
+
+Architecture Overview
+=====================
+The Ethernet Switch in the DPAA2 architecture consists of several hardware
+resources that provide the functionality. These are allocated and
+configured via the Management Complex (MC) portals. MC abstracts most of
+these resources as DPAA2 objects and exposes ABIs through which they can
+be configured and controlled.
+
+For a more detailed description of the DPAA2 architecture and its object
+abstractions see:
+ drivers/staging/fsl-mc/README.txt
+
+The Ethernet Switch is built on top of a Datapath Switch (DPSW) object.
+
+Configuration interface:
+
+ ---------------------
+ | DPAA2 Switch driver |
+ ---------------------
+ .
+ .
+ ----------
+ | DPSW API |
+ ----------
+ . software
+ ================= . ==============
+ . hardware
+ ---------------------
+ | MC hardware portals |
+ ---------------------
+ .
+ .
+ ------
+ | DPSW |
+ ------
+
+Driver uses the switch device driver model and exposes each switch port as
+a network interface, which can be included in a bridge. Traffic switched
+between ports is offloaded into the hardware. Exposed network interfaces
+are not used for I/O, they are used just for configuration. This
+limitation is going to be addressed in the future.
+
+The DPSW can have ports connected to DPNIs or to PHYs via DPMACs.
+
+
+ [ethA] [ethB] [ethC] [ethD] [ethE] [ethF]
+ : : : : : :
+ : : : : : :
+[eth drv] [eth drv] [ ethsw drv ]
+ : : : : : : kernel
+========================================================================
+ : : : : : : hardware
+ [DPNI] [DPNI] [============= DPSW =================]
+ | | | | | |
+ | ---------- | [DPMAC] [DPMAC]
+ ------------------------------- | |
+ | |
+ [PHY] [PHY]
+
+For a more detailed description of the Ethernet switch device driver model
+see:
+ Documentation/networking/switchdev.txt
+
+Creating an Ethernet Switch
+===========================
+A device is created for the switch objects probed on the MC bus. Each DPSW
+has a number of properties which determine the configuration options and
+associated hardware resources.
+
+A DPSW object (and the other DPAA2 objects needed for a DPAA2 switch) can
+be added to a container on the MC bus in one of two ways: statically,
+through a Datapath Layout Binary file (DPL) that is parsed by MC at boot
+time; or created dynamically at runtime, via the DPAA2 objects APIs.
+
+Features
+========
+Driver configures DPSW to perform hardware switching offload of
+unicast/multicast/broadcast (VLAN tagged or untagged) traffic between its
+ports.
+
+It allows configuration of hardware learning, flooding, multicast groups,
+port VLAN configuration and STP state.
+
+Static entries can be added/removed from the FDB.
+
+Hardware statistics for each port are provided through ethtool -S option.
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethsw/TODO
@@ -0,0 +1,14 @@
+* Add I/O capabilities on switch port netdevices. This will allow control
+traffic to reach the CPU.
+* Add ACL to redirect control traffic to CPU.
+* Add support for displaying learned FDB entries
+* MC firmware uprev; the DPAA2 objects used by the Ethernet Switch driver
+need to be kept in sync with binary interface changes in MC
+* refine README file
+* cleanup
+
+NOTE: At least first three of the above are required before getting the
+DPAA2 Ethernet Switch driver out of staging. Another requirement is that
+the fsl-mc bus driver is moved to drivers/bus and dpio driver is moved to
+drivers/soc (this is required for I/O).
+
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethsw/dpsw-cmd.h
@@ -0,0 +1,359 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2013-2016 Freescale Semiconductor, Inc.
+ * Copyright 2017-2018 NXP
+ *
+ */
+
+#ifndef __FSL_DPSW_CMD_H
+#define __FSL_DPSW_CMD_H
+
+/* DPSW Version */
+#define DPSW_VER_MAJOR 8
+#define DPSW_VER_MINOR 0
+
+#define DPSW_CMD_BASE_VERSION 1
+#define DPSW_CMD_ID_OFFSET 4
+
+#define DPSW_CMD_ID(id) (((id) << DPSW_CMD_ID_OFFSET) | DPSW_CMD_BASE_VERSION)
+
+/* Command IDs */
+#define DPSW_CMDID_CLOSE DPSW_CMD_ID(0x800)
+#define DPSW_CMDID_OPEN DPSW_CMD_ID(0x802)
+
+#define DPSW_CMDID_GET_API_VERSION DPSW_CMD_ID(0xa02)
+
+#define DPSW_CMDID_ENABLE DPSW_CMD_ID(0x002)
+#define DPSW_CMDID_DISABLE DPSW_CMD_ID(0x003)
+#define DPSW_CMDID_GET_ATTR DPSW_CMD_ID(0x004)
+#define DPSW_CMDID_RESET DPSW_CMD_ID(0x005)
+
+#define DPSW_CMDID_SET_IRQ_ENABLE DPSW_CMD_ID(0x012)
+
+#define DPSW_CMDID_SET_IRQ_MASK DPSW_CMD_ID(0x014)
+
+#define DPSW_CMDID_GET_IRQ_STATUS DPSW_CMD_ID(0x016)
+#define DPSW_CMDID_CLEAR_IRQ_STATUS DPSW_CMD_ID(0x017)
+
+#define DPSW_CMDID_IF_SET_TCI DPSW_CMD_ID(0x030)
+#define DPSW_CMDID_IF_SET_STP DPSW_CMD_ID(0x031)
+
+#define DPSW_CMDID_IF_GET_COUNTER DPSW_CMD_ID(0x034)
+
+#define DPSW_CMDID_IF_ENABLE DPSW_CMD_ID(0x03D)
+#define DPSW_CMDID_IF_DISABLE DPSW_CMD_ID(0x03E)
+
+#define DPSW_CMDID_IF_SET_MAX_FRAME_LENGTH DPSW_CMD_ID(0x044)
+
+#define DPSW_CMDID_IF_GET_LINK_STATE DPSW_CMD_ID(0x046)
+#define DPSW_CMDID_IF_SET_FLOODING DPSW_CMD_ID(0x047)
+#define DPSW_CMDID_IF_SET_BROADCAST DPSW_CMD_ID(0x048)
+
+#define DPSW_CMDID_IF_GET_TCI DPSW_CMD_ID(0x04A)
+
+#define DPSW_CMDID_IF_SET_LINK_CFG DPSW_CMD_ID(0x04C)
+
+#define DPSW_CMDID_VLAN_ADD DPSW_CMD_ID(0x060)
+#define DPSW_CMDID_VLAN_ADD_IF DPSW_CMD_ID(0x061)
+#define DPSW_CMDID_VLAN_ADD_IF_UNTAGGED DPSW_CMD_ID(0x062)
+
+#define DPSW_CMDID_VLAN_REMOVE_IF DPSW_CMD_ID(0x064)
+#define DPSW_CMDID_VLAN_REMOVE_IF_UNTAGGED DPSW_CMD_ID(0x065)
+#define DPSW_CMDID_VLAN_REMOVE_IF_FLOODING DPSW_CMD_ID(0x066)
+#define DPSW_CMDID_VLAN_REMOVE DPSW_CMD_ID(0x067)
+
+#define DPSW_CMDID_FDB_ADD_UNICAST DPSW_CMD_ID(0x084)
+#define DPSW_CMDID_FDB_REMOVE_UNICAST DPSW_CMD_ID(0x085)
+#define DPSW_CMDID_FDB_ADD_MULTICAST DPSW_CMD_ID(0x086)
+#define DPSW_CMDID_FDB_REMOVE_MULTICAST DPSW_CMD_ID(0x087)
+#define DPSW_CMDID_FDB_SET_LEARNING_MODE DPSW_CMD_ID(0x088)
+
+/* Macros for accessing command fields smaller than 1byte */
+#define DPSW_MASK(field) \
+ GENMASK(DPSW_##field##_SHIFT + DPSW_##field##_SIZE - 1, \
+ DPSW_##field##_SHIFT)
+#define dpsw_set_field(var, field, val) \
+ ((var) |= (((val) << DPSW_##field##_SHIFT) & DPSW_MASK(field)))
+#define dpsw_get_field(var, field) \
+ (((var) & DPSW_MASK(field)) >> DPSW_##field##_SHIFT)
+#define dpsw_get_bit(var, bit) \
+ (((var) >> (bit)) & GENMASK(0, 0))
+
+struct dpsw_cmd_open {
+ __le32 dpsw_id;
+};
+
+#define DPSW_COMPONENT_TYPE_SHIFT 0
+#define DPSW_COMPONENT_TYPE_SIZE 4
+
+struct dpsw_cmd_create {
+ /* cmd word 0 */
+ __le16 num_ifs;
+ u8 max_fdbs;
+ u8 max_meters_per_if;
+ /* from LSB: only the first 4 bits */
+ u8 component_type;
+ u8 pad[3];
+ /* cmd word 1 */
+ __le16 max_vlans;
+ __le16 max_fdb_entries;
+ __le16 fdb_aging_time;
+ __le16 max_fdb_mc_groups;
+ /* cmd word 2 */
+ __le64 options;
+};
+
+struct dpsw_cmd_destroy {
+ __le32 dpsw_id;
+};
+
+#define DPSW_ENABLE_SHIFT 0
+#define DPSW_ENABLE_SIZE 1
+
+struct dpsw_rsp_is_enabled {
+ /* from LSB: enable:1 */
+ u8 enabled;
+};
+
+struct dpsw_cmd_set_irq_enable {
+ u8 enable_state;
+ u8 pad[3];
+ u8 irq_index;
+};
+
+struct dpsw_cmd_get_irq_enable {
+ __le32 pad;
+ u8 irq_index;
+};
+
+struct dpsw_rsp_get_irq_enable {
+ u8 enable_state;
+};
+
+struct dpsw_cmd_set_irq_mask {
+ __le32 mask;
+ u8 irq_index;
+};
+
+struct dpsw_cmd_get_irq_mask {
+ __le32 pad;
+ u8 irq_index;
+};
+
+struct dpsw_rsp_get_irq_mask {
+ __le32 mask;
+};
+
+struct dpsw_cmd_get_irq_status {
+ __le32 status;
+ u8 irq_index;
+};
+
+struct dpsw_rsp_get_irq_status {
+ __le32 status;
+};
+
+struct dpsw_cmd_clear_irq_status {
+ __le32 status;
+ u8 irq_index;
+};
+
+#define DPSW_COMPONENT_TYPE_SHIFT 0
+#define DPSW_COMPONENT_TYPE_SIZE 4
+
+struct dpsw_rsp_get_attr {
+ /* cmd word 0 */
+ __le16 num_ifs;
+ u8 max_fdbs;
+ u8 num_fdbs;
+ __le16 max_vlans;
+ __le16 num_vlans;
+ /* cmd word 1 */
+ __le16 max_fdb_entries;
+ __le16 fdb_aging_time;
+ __le32 dpsw_id;
+ /* cmd word 2 */
+ __le16 mem_size;
+ __le16 max_fdb_mc_groups;
+ u8 max_meters_per_if;
+ /* from LSB only the first 4 bits */
+ u8 component_type;
+ __le16 pad;
+ /* cmd word 3 */
+ __le64 options;
+};
+
+struct dpsw_cmd_if_set_flooding {
+ __le16 if_id;
+ /* from LSB: enable:1 */
+ u8 enable;
+};
+
+struct dpsw_cmd_if_set_broadcast {
+ __le16 if_id;
+ /* from LSB: enable:1 */
+ u8 enable;
+};
+
+#define DPSW_VLAN_ID_SHIFT 0
+#define DPSW_VLAN_ID_SIZE 12
+#define DPSW_DEI_SHIFT 12
+#define DPSW_DEI_SIZE 1
+#define DPSW_PCP_SHIFT 13
+#define DPSW_PCP_SIZE 3
+
+struct dpsw_cmd_if_set_tci {
+ __le16 if_id;
+ /* from LSB: VLAN_ID:12 DEI:1 PCP:3 */
+ __le16 conf;
+};
+
+struct dpsw_cmd_if_get_tci {
+ __le16 if_id;
+};
+
+struct dpsw_rsp_if_get_tci {
+ __le16 pad;
+ __le16 vlan_id;
+ u8 dei;
+ u8 pcp;
+};
+
+#define DPSW_STATE_SHIFT 0
+#define DPSW_STATE_SIZE 4
+
+struct dpsw_cmd_if_set_stp {
+ __le16 if_id;
+ __le16 vlan_id;
+ /* only the first LSB 4 bits */
+ u8 state;
+};
+
+#define DPSW_COUNTER_TYPE_SHIFT 0
+#define DPSW_COUNTER_TYPE_SIZE 5
+
+struct dpsw_cmd_if_get_counter {
+ __le16 if_id;
+ /* from LSB: type:5 */
+ u8 type;
+};
+
+struct dpsw_rsp_if_get_counter {
+ __le64 pad;
+ __le64 counter;
+};
+
+struct dpsw_cmd_if {
+ __le16 if_id;
+};
+
+struct dpsw_cmd_if_set_max_frame_length {
+ __le16 if_id;
+ __le16 frame_length;
+};
+
+struct dpsw_cmd_if_set_link_cfg {
+ /* cmd word 0 */
+ __le16 if_id;
+ u8 pad[6];
+ /* cmd word 1 */
+ __le32 rate;
+ __le32 pad1;
+ /* cmd word 2 */
+ __le64 options;
+};
+
+struct dpsw_cmd_if_get_link_state {
+ __le16 if_id;
+};
+
+#define DPSW_UP_SHIFT 0
+#define DPSW_UP_SIZE 1
+
+struct dpsw_rsp_if_get_link_state {
+ /* cmd word 0 */
+ __le32 pad0;
+ u8 up;
+ u8 pad1[3];
+ /* cmd word 1 */
+ __le32 rate;
+ __le32 pad2;
+ /* cmd word 2 */
+ __le64 options;
+};
+
+struct dpsw_vlan_add {
+ __le16 fdb_id;
+ __le16 vlan_id;
+};
+
+struct dpsw_cmd_vlan_manage_if {
+ /* cmd word 0 */
+ __le16 pad0;
+ __le16 vlan_id;
+ __le32 pad1;
+ /* cmd word 1-4 */
+ __le64 if_id[4];
+};
+
+struct dpsw_cmd_vlan_remove {
+ __le16 pad;
+ __le16 vlan_id;
+};
+
+struct dpsw_cmd_fdb_add {
+ __le32 pad;
+ __le16 fdb_aging_time;
+ __le16 num_fdb_entries;
+};
+
+struct dpsw_rsp_fdb_add {
+ __le16 fdb_id;
+};
+
+struct dpsw_cmd_fdb_remove {
+ __le16 fdb_id;
+};
+
+#define DPSW_ENTRY_TYPE_SHIFT 0
+#define DPSW_ENTRY_TYPE_SIZE 4
+
+struct dpsw_cmd_fdb_unicast_op {
+ /* cmd word 0 */
+ __le16 fdb_id;
+ u8 mac_addr[6];
+ /* cmd word 1 */
+ __le16 if_egress;
+ /* only the first 4 bits from LSB */
+ u8 type;
+};
+
+struct dpsw_cmd_fdb_multicast_op {
+ /* cmd word 0 */
+ __le16 fdb_id;
+ __le16 num_ifs;
+ /* only the first 4 bits from LSB */
+ u8 type;
+ u8 pad[3];
+ /* cmd word 1 */
+ u8 mac_addr[6];
+ __le16 pad2;
+ /* cmd word 2-5 */
+ __le64 if_id[4];
+};
+
+#define DPSW_LEARNING_MODE_SHIFT 0
+#define DPSW_LEARNING_MODE_SIZE 4
+
+struct dpsw_cmd_fdb_set_learning_mode {
+ __le16 fdb_id;
+ /* only the first 4 bits from LSB */
+ u8 mode;
+};
+
+struct dpsw_rsp_get_api_version {
+ __le16 version_major;
+ __le16 version_minor;
+};
+
+#endif /* __FSL_DPSW_CMD_H */
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethsw/dpsw.c
@@ -0,0 +1,1165 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2013-2016 Freescale Semiconductor, Inc.
+ * Copyright 2017-2018 NXP
+ *
+ */
+
+#include <linux/fsl/mc.h>
+#include "dpsw.h"
+#include "dpsw-cmd.h"
+
+static void build_if_id_bitmap(__le64 *bmap,
+ const u16 *id,
+ const u16 num_ifs)
+{
+ int i;
+
+ for (i = 0; (i < num_ifs) && (i < DPSW_MAX_IF); i++) {
+ if (id[i] < DPSW_MAX_IF)
+ bmap[id[i] / 64] |= cpu_to_le64(BIT_MASK(id[i] % 64));
+ }
+}
+
+/**
+ * dpsw_open() - Open a control session for the specified object
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @dpsw_id: DPSW unique ID
+ * @token: Returned token; use in subsequent API calls
+ *
+ * This function can be used to open a control session for an
+ * already created object; an object may have been declared in
+ * the DPL or by calling the dpsw_create() function.
+ * This function returns a unique authentication token,
+ * associated with the specific object ID and the specific MC
+ * portal; this token must be used in all subsequent commands for
+ * this specific object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpsw_open(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ int dpsw_id,
+ u16 *token)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_open *cmd_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_OPEN,
+ cmd_flags,
+ 0);
+ cmd_params = (struct dpsw_cmd_open *)cmd.params;
+ cmd_params->dpsw_id = cpu_to_le32(dpsw_id);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ *token = mc_cmd_hdr_read_token(&cmd);
+
+ return 0;
+}
+
+/**
+ * dpsw_close() - Close the control session of the object
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ *
+ * After this function is called, no further operations are
+ * allowed on the object without opening a new control session.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpsw_close(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_CLOSE,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_enable() - Enable DPSW functionality
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpsw_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_ENABLE,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_disable() - Disable DPSW functionality
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpsw_disable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_DISABLE,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_reset() - Reset the DPSW, returns the object to initial state.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpsw_reset(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_RESET,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_set_irq_enable() - Set overall interrupt state.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPCI object
+ * @irq_index: The interrupt index to configure
+ * @en: Interrupt state - enable = 1, disable = 0
+ *
+ * Allows GPP software to control when interrupts are generated.
+ * Each interrupt can have up to 32 causes. The enable/disable control's the
+ * overall interrupt state. if the interrupt is disabled no causes will cause
+ * an interrupt
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpsw_set_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 en)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_set_irq_enable *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_SET_IRQ_ENABLE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_set_irq_enable *)cmd.params;
+ dpsw_set_field(cmd_params->enable_state, ENABLE, en);
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_set_irq_mask() - Set interrupt mask.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPCI object
+ * @irq_index: The interrupt index to configure
+ * @mask: Event mask to trigger interrupt;
+ * each bit:
+ * 0 = ignore event
+ * 1 = consider event for asserting IRQ
+ *
+ * Every interrupt can have up to 32 causes and the interrupt model supports
+ * masking/unmasking each cause independently
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpsw_set_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 mask)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_set_irq_mask *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_SET_IRQ_MASK,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_set_irq_mask *)cmd.params;
+ cmd_params->mask = cpu_to_le32(mask);
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_get_irq_status() - Get the current status of any pending interrupts
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @irq_index: The interrupt index to configure
+ * @status: Returned interrupts status - one bit per cause:
+ * 0 = no interrupt pending
+ * 1 = interrupt pending
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpsw_get_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *status)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_get_irq_status *cmd_params;
+ struct dpsw_rsp_get_irq_status *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_GET_IRQ_STATUS,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_get_irq_status *)cmd.params;
+ cmd_params->status = cpu_to_le32(*status);
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpsw_rsp_get_irq_status *)cmd.params;
+ *status = le32_to_cpu(rsp_params->status);
+
+ return 0;
+}
+
+/**
+ * dpsw_clear_irq_status() - Clear a pending interrupt's status
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPCI object
+ * @irq_index: The interrupt index to configure
+ * @status: bits to clear (W1C) - one bit per cause:
+ * 0 = don't change
+ * 1 = clear status bit
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpsw_clear_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 status)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_clear_irq_status *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_CLEAR_IRQ_STATUS,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_clear_irq_status *)cmd.params;
+ cmd_params->status = cpu_to_le32(status);
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_get_attributes() - Retrieve DPSW attributes
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @attr: Returned DPSW attributes
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpsw_get_attributes(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpsw_attr *attr)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_rsp_get_attr *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_GET_ATTR,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpsw_rsp_get_attr *)cmd.params;
+ attr->num_ifs = le16_to_cpu(rsp_params->num_ifs);
+ attr->max_fdbs = rsp_params->max_fdbs;
+ attr->num_fdbs = rsp_params->num_fdbs;
+ attr->max_vlans = le16_to_cpu(rsp_params->max_vlans);
+ attr->num_vlans = le16_to_cpu(rsp_params->num_vlans);
+ attr->max_fdb_entries = le16_to_cpu(rsp_params->max_fdb_entries);
+ attr->fdb_aging_time = le16_to_cpu(rsp_params->fdb_aging_time);
+ attr->id = le32_to_cpu(rsp_params->dpsw_id);
+ attr->mem_size = le16_to_cpu(rsp_params->mem_size);
+ attr->max_fdb_mc_groups = le16_to_cpu(rsp_params->max_fdb_mc_groups);
+ attr->max_meters_per_if = rsp_params->max_meters_per_if;
+ attr->options = le64_to_cpu(rsp_params->options);
+ attr->component_type = dpsw_get_field(rsp_params->component_type,
+ COMPONENT_TYPE);
+
+ return 0;
+}
+
+/**
+ * dpsw_if_set_link_cfg() - Set the link configuration.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @if_id: Interface id
+ * @cfg: Link configuration
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpsw_if_set_link_cfg(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ struct dpsw_link_cfg *cfg)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_if_set_link_cfg *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_SET_LINK_CFG,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_if_set_link_cfg *)cmd.params;
+ cmd_params->if_id = cpu_to_le16(if_id);
+ cmd_params->rate = cpu_to_le32(cfg->rate);
+ cmd_params->options = cpu_to_le64(cfg->options);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_if_get_link_state - Return the link state
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @if_id: Interface id
+ * @state: Link state 1 - linkup, 0 - link down or disconnected
+ *
+ * @Return '0' on Success; Error code otherwise.
+ */
+int dpsw_if_get_link_state(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ struct dpsw_link_state *state)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_if_get_link_state *cmd_params;
+ struct dpsw_rsp_if_get_link_state *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_GET_LINK_STATE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_if_get_link_state *)cmd.params;
+ cmd_params->if_id = cpu_to_le16(if_id);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpsw_rsp_if_get_link_state *)cmd.params;
+ state->rate = le32_to_cpu(rsp_params->rate);
+ state->options = le64_to_cpu(rsp_params->options);
+ state->up = dpsw_get_field(rsp_params->up, UP);
+
+ return 0;
+}
+
+/**
+ * dpsw_if_set_flooding() - Enable Disable flooding for particular interface
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @if_id: Interface Identifier
+ * @en: 1 - enable, 0 - disable
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpsw_if_set_flooding(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ u8 en)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_if_set_flooding *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_SET_FLOODING,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_if_set_flooding *)cmd.params;
+ cmd_params->if_id = cpu_to_le16(if_id);
+ dpsw_set_field(cmd_params->enable, ENABLE, en);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_if_set_broadcast() - Enable/disable broadcast for particular interface
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @if_id: Interface Identifier
+ * @en: 1 - enable, 0 - disable
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpsw_if_set_broadcast(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ u8 en)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_if_set_broadcast *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_SET_BROADCAST,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_if_set_broadcast *)cmd.params;
+ cmd_params->if_id = cpu_to_le16(if_id);
+ dpsw_set_field(cmd_params->enable, ENABLE, en);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_if_set_tci() - Set default VLAN Tag Control Information (TCI)
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @if_id: Interface Identifier
+ * @cfg: Tag Control Information Configuration
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpsw_if_set_tci(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ const struct dpsw_tci_cfg *cfg)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_if_set_tci *cmd_params;
+ u16 tmp_conf = 0;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_SET_TCI,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_if_set_tci *)cmd.params;
+ cmd_params->if_id = cpu_to_le16(if_id);
+ dpsw_set_field(tmp_conf, VLAN_ID, cfg->vlan_id);
+ dpsw_set_field(tmp_conf, DEI, cfg->dei);
+ dpsw_set_field(tmp_conf, PCP, cfg->pcp);
+ cmd_params->conf = cpu_to_le16(tmp_conf);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_if_get_tci() - Get default VLAN Tag Control Information (TCI)
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @if_id: Interface Identifier
+ * @cfg: Tag Control Information Configuration
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpsw_if_get_tci(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ struct dpsw_tci_cfg *cfg)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_if_get_tci *cmd_params;
+ struct dpsw_rsp_if_get_tci *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_GET_TCI,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_if_get_tci *)cmd.params;
+ cmd_params->if_id = cpu_to_le16(if_id);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpsw_rsp_if_get_tci *)cmd.params;
+ cfg->pcp = rsp_params->pcp;
+ cfg->dei = rsp_params->dei;
+ cfg->vlan_id = le16_to_cpu(rsp_params->vlan_id);
+
+ return 0;
+}
+
+/**
+ * dpsw_if_set_stp() - Function sets Spanning Tree Protocol (STP) state.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @if_id: Interface Identifier
+ * @cfg: STP State configuration parameters
+ *
+ * The following STP states are supported -
+ * blocking, listening, learning, forwarding and disabled.
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpsw_if_set_stp(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ const struct dpsw_stp_cfg *cfg)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_if_set_stp *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_SET_STP,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_if_set_stp *)cmd.params;
+ cmd_params->if_id = cpu_to_le16(if_id);
+ cmd_params->vlan_id = cpu_to_le16(cfg->vlan_id);
+ dpsw_set_field(cmd_params->state, STATE, cfg->state);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_if_get_counter() - Get specific counter of particular interface
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @if_id: Interface Identifier
+ * @type: Counter type
+ * @counter: return value
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpsw_if_get_counter(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ enum dpsw_counter type,
+ u64 *counter)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_if_get_counter *cmd_params;
+ struct dpsw_rsp_if_get_counter *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_GET_COUNTER,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_if_get_counter *)cmd.params;
+ cmd_params->if_id = cpu_to_le16(if_id);
+ dpsw_set_field(cmd_params->type, COUNTER_TYPE, type);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpsw_rsp_if_get_counter *)cmd.params;
+ *counter = le64_to_cpu(rsp_params->counter);
+
+ return 0;
+}
+
+/**
+ * dpsw_if_enable() - Enable Interface
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @if_id: Interface Identifier
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpsw_if_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_if *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_ENABLE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_if *)cmd.params;
+ cmd_params->if_id = cpu_to_le16(if_id);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_if_disable() - Disable Interface
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @if_id: Interface Identifier
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpsw_if_disable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_if *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_DISABLE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_if *)cmd.params;
+ cmd_params->if_id = cpu_to_le16(if_id);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_if_set_max_frame_length() - Set Maximum Receive frame length.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @if_id: Interface Identifier
+ * @frame_length: Maximum Frame Length
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpsw_if_set_max_frame_length(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ u16 frame_length)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_if_set_max_frame_length *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_SET_MAX_FRAME_LENGTH,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_if_set_max_frame_length *)cmd.params;
+ cmd_params->if_id = cpu_to_le16(if_id);
+ cmd_params->frame_length = cpu_to_le16(frame_length);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_vlan_add() - Adding new VLAN to DPSW.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @vlan_id: VLAN Identifier
+ * @cfg: VLAN configuration
+ *
+ * Only VLAN ID and FDB ID are required parameters here.
+ * 12 bit VLAN ID is defined in IEEE802.1Q.
+ * Adding a duplicate VLAN ID is not allowed.
+ * FDB ID can be shared across multiple VLANs. Shared learning
+ * is obtained by calling dpsw_vlan_add for multiple VLAN IDs
+ * with same fdb_id
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpsw_vlan_add(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 vlan_id,
+ const struct dpsw_vlan_cfg *cfg)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_vlan_add *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_VLAN_ADD,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_vlan_add *)cmd.params;
+ cmd_params->fdb_id = cpu_to_le16(cfg->fdb_id);
+ cmd_params->vlan_id = cpu_to_le16(vlan_id);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_vlan_add_if() - Adding a set of interfaces to an existing VLAN.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @vlan_id: VLAN Identifier
+ * @cfg: Set of interfaces to add
+ *
+ * It adds only interfaces not belonging to this VLAN yet,
+ * otherwise an error is generated and an entire command is
+ * ignored. This function can be called numerous times always
+ * providing required interfaces delta.
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpsw_vlan_add_if(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 vlan_id,
+ const struct dpsw_vlan_if_cfg *cfg)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_vlan_manage_if *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_VLAN_ADD_IF,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_vlan_manage_if *)cmd.params;
+ cmd_params->vlan_id = cpu_to_le16(vlan_id);
+ build_if_id_bitmap(cmd_params->if_id, cfg->if_id, cfg->num_ifs);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_vlan_add_if_untagged() - Defining a set of interfaces that should be
+ * transmitted as untagged.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @vlan_id: VLAN Identifier
+ * @cfg: Set of interfaces that should be transmitted as untagged
+ *
+ * These interfaces should already belong to this VLAN.
+ * By default all interfaces are transmitted as tagged.
+ * Providing un-existing interface or untagged interface that is
+ * configured untagged already generates an error and the entire
+ * command is ignored.
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpsw_vlan_add_if_untagged(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 vlan_id,
+ const struct dpsw_vlan_if_cfg *cfg)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_vlan_manage_if *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_VLAN_ADD_IF_UNTAGGED,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_vlan_manage_if *)cmd.params;
+ cmd_params->vlan_id = cpu_to_le16(vlan_id);
+ build_if_id_bitmap(cmd_params->if_id, cfg->if_id, cfg->num_ifs);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_vlan_remove_if() - Remove interfaces from an existing VLAN.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @vlan_id: VLAN Identifier
+ * @cfg: Set of interfaces that should be removed
+ *
+ * Interfaces must belong to this VLAN, otherwise an error
+ * is returned and an the command is ignored
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpsw_vlan_remove_if(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 vlan_id,
+ const struct dpsw_vlan_if_cfg *cfg)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_vlan_manage_if *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_VLAN_REMOVE_IF,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_vlan_manage_if *)cmd.params;
+ cmd_params->vlan_id = cpu_to_le16(vlan_id);
+ build_if_id_bitmap(cmd_params->if_id, cfg->if_id, cfg->num_ifs);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_vlan_remove_if_untagged() - Define a set of interfaces that should be
+ * converted from transmitted as untagged to transmit as tagged.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @vlan_id: VLAN Identifier
+ * @cfg: Set of interfaces that should be removed
+ *
+ * Interfaces provided by API have to belong to this VLAN and
+ * configured untagged, otherwise an error is returned and the
+ * command is ignored
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpsw_vlan_remove_if_untagged(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 vlan_id,
+ const struct dpsw_vlan_if_cfg *cfg)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_vlan_manage_if *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_VLAN_REMOVE_IF_UNTAGGED,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_vlan_manage_if *)cmd.params;
+ cmd_params->vlan_id = cpu_to_le16(vlan_id);
+ build_if_id_bitmap(cmd_params->if_id, cfg->if_id, cfg->num_ifs);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_vlan_remove() - Remove an entire VLAN
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @vlan_id: VLAN Identifier
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpsw_vlan_remove(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 vlan_id)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_vlan_remove *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_VLAN_REMOVE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_vlan_remove *)cmd.params;
+ cmd_params->vlan_id = cpu_to_le16(vlan_id);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_fdb_add_unicast() - Function adds an unicast entry into MAC lookup table
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @fdb_id: Forwarding Database Identifier
+ * @cfg: Unicast entry configuration
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpsw_fdb_add_unicast(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 fdb_id,
+ const struct dpsw_fdb_unicast_cfg *cfg)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_fdb_unicast_op *cmd_params;
+ int i;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_FDB_ADD_UNICAST,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_fdb_unicast_op *)cmd.params;
+ cmd_params->fdb_id = cpu_to_le16(fdb_id);
+ cmd_params->if_egress = cpu_to_le16(cfg->if_egress);
+ for (i = 0; i < 6; i++)
+ cmd_params->mac_addr[i] = cfg->mac_addr[5 - i];
+ dpsw_set_field(cmd_params->type, ENTRY_TYPE, cfg->type);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_fdb_remove_unicast() - removes an entry from MAC lookup table
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @fdb_id: Forwarding Database Identifier
+ * @cfg: Unicast entry configuration
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpsw_fdb_remove_unicast(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 fdb_id,
+ const struct dpsw_fdb_unicast_cfg *cfg)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_fdb_unicast_op *cmd_params;
+ int i;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_FDB_REMOVE_UNICAST,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_fdb_unicast_op *)cmd.params;
+ cmd_params->fdb_id = cpu_to_le16(fdb_id);
+ for (i = 0; i < 6; i++)
+ cmd_params->mac_addr[i] = cfg->mac_addr[5 - i];
+ cmd_params->if_egress = cpu_to_le16(cfg->if_egress);
+ dpsw_set_field(cmd_params->type, ENTRY_TYPE, cfg->type);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_fdb_add_multicast() - Add a set of egress interfaces to multi-cast group
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @fdb_id: Forwarding Database Identifier
+ * @cfg: Multicast entry configuration
+ *
+ * If group doesn't exist, it will be created.
+ * It adds only interfaces not belonging to this multicast group
+ * yet, otherwise error will be generated and the command is
+ * ignored.
+ * This function may be called numerous times always providing
+ * required interfaces delta.
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpsw_fdb_add_multicast(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 fdb_id,
+ const struct dpsw_fdb_multicast_cfg *cfg)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_fdb_multicast_op *cmd_params;
+ int i;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_FDB_ADD_MULTICAST,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_fdb_multicast_op *)cmd.params;
+ cmd_params->fdb_id = cpu_to_le16(fdb_id);
+ cmd_params->num_ifs = cpu_to_le16(cfg->num_ifs);
+ dpsw_set_field(cmd_params->type, ENTRY_TYPE, cfg->type);
+ build_if_id_bitmap(cmd_params->if_id, cfg->if_id, cfg->num_ifs);
+ for (i = 0; i < 6; i++)
+ cmd_params->mac_addr[i] = cfg->mac_addr[5 - i];
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_fdb_remove_multicast() - Removing interfaces from an existing multicast
+ * group.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @fdb_id: Forwarding Database Identifier
+ * @cfg: Multicast entry configuration
+ *
+ * Interfaces provided by this API have to exist in the group,
+ * otherwise an error will be returned and an entire command
+ * ignored. If there is no interface left in the group,
+ * an entire group is deleted
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpsw_fdb_remove_multicast(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 fdb_id,
+ const struct dpsw_fdb_multicast_cfg *cfg)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_fdb_multicast_op *cmd_params;
+ int i;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_FDB_REMOVE_MULTICAST,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_fdb_multicast_op *)cmd.params;
+ cmd_params->fdb_id = cpu_to_le16(fdb_id);
+ cmd_params->num_ifs = cpu_to_le16(cfg->num_ifs);
+ dpsw_set_field(cmd_params->type, ENTRY_TYPE, cfg->type);
+ build_if_id_bitmap(cmd_params->if_id, cfg->if_id, cfg->num_ifs);
+ for (i = 0; i < 6; i++)
+ cmd_params->mac_addr[i] = cfg->mac_addr[5 - i];
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_fdb_set_learning_mode() - Define FDB learning mode
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @fdb_id: Forwarding Database Identifier
+ * @mode: Learning mode
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpsw_fdb_set_learning_mode(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 fdb_id,
+ enum dpsw_fdb_learning_mode mode)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_cmd_fdb_set_learning_mode *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_FDB_SET_LEARNING_MODE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpsw_cmd_fdb_set_learning_mode *)cmd.params;
+ cmd_params->fdb_id = cpu_to_le16(fdb_id);
+ dpsw_set_field(cmd_params->mode, LEARNING_MODE, mode);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpsw_get_api_version() - Get Data Path Switch API version
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @major_ver: Major version of data path switch API
+ * @minor_ver: Minor version of data path switch API
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpsw_get_api_version(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 *major_ver,
+ u16 *minor_ver)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpsw_rsp_get_api_version *rsp_params;
+ int err;
+
+ cmd.header = mc_encode_cmd_header(DPSW_CMDID_GET_API_VERSION,
+ cmd_flags,
+ 0);
+
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ rsp_params = (struct dpsw_rsp_get_api_version *)cmd.params;
+ *major_ver = le16_to_cpu(rsp_params->version_major);
+ *minor_ver = le16_to_cpu(rsp_params->version_minor);
+
+ return 0;
+}
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethsw/dpsw.h
@@ -0,0 +1,592 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2013-2016 Freescale Semiconductor, Inc.
+ * Copyright 2017-2018 NXP
+ *
+ */
+
+#ifndef __FSL_DPSW_H
+#define __FSL_DPSW_H
+
+/* Data Path L2-Switch API
+ * Contains API for handling DPSW topology and functionality
+ */
+
+struct fsl_mc_io;
+
+/**
+ * DPSW general definitions
+ */
+
+/**
+ * Maximum number of traffic class priorities
+ */
+#define DPSW_MAX_PRIORITIES 8
+/**
+ * Maximum number of interfaces
+ */
+#define DPSW_MAX_IF 64
+
+int dpsw_open(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ int dpsw_id,
+ u16 *token);
+
+int dpsw_close(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+/**
+ * DPSW options
+ */
+
+/**
+ * Disable flooding
+ */
+#define DPSW_OPT_FLOODING_DIS 0x0000000000000001ULL
+/**
+ * Disable Multicast
+ */
+#define DPSW_OPT_MULTICAST_DIS 0x0000000000000004ULL
+/**
+ * Support control interface
+ */
+#define DPSW_OPT_CTRL_IF_DIS 0x0000000000000010ULL
+/**
+ * Disable flooding metering
+ */
+#define DPSW_OPT_FLOODING_METERING_DIS 0x0000000000000020ULL
+/**
+ * Enable metering
+ */
+#define DPSW_OPT_METERING_EN 0x0000000000000040ULL
+
+/**
+ * enum dpsw_component_type - component type of a bridge
+ * @DPSW_COMPONENT_TYPE_C_VLAN: A C-VLAN component of an
+ * enterprise VLAN bridge or of a Provider Bridge used
+ * to process C-tagged frames
+ * @DPSW_COMPONENT_TYPE_S_VLAN: An S-VLAN component of a
+ * Provider Bridge
+ *
+ */
+enum dpsw_component_type {
+ DPSW_COMPONENT_TYPE_C_VLAN = 0,
+ DPSW_COMPONENT_TYPE_S_VLAN
+};
+
+/**
+ * struct dpsw_cfg - DPSW configuration
+ * @num_ifs: Number of external and internal interfaces
+ * @adv: Advanced parameters; default is all zeros;
+ * use this structure to change default settings
+ */
+struct dpsw_cfg {
+ u16 num_ifs;
+ /**
+ * struct adv - Advanced parameters
+ * @options: Enable/Disable DPSW features (bitmap)
+ * @max_vlans: Maximum Number of VLAN's; 0 - indicates default 16
+ * @max_meters_per_if: Number of meters per interface
+ * @max_fdbs: Maximum Number of FDB's; 0 - indicates default 16
+ * @max_fdb_entries: Number of FDB entries for default FDB table;
+ * 0 - indicates default 1024 entries.
+ * @fdb_aging_time: Default FDB aging time for default FDB table;
+ * 0 - indicates default 300 seconds
+ * @max_fdb_mc_groups: Number of multicast groups in each FDB table;
+ * 0 - indicates default 32
+ * @component_type: Indicates the component type of this bridge
+ */
+ struct {
+ u64 options;
+ u16 max_vlans;
+ u8 max_meters_per_if;
+ u8 max_fdbs;
+ u16 max_fdb_entries;
+ u16 fdb_aging_time;
+ u16 max_fdb_mc_groups;
+ enum dpsw_component_type component_type;
+ } adv;
+};
+
+int dpsw_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+int dpsw_disable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+int dpsw_reset(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+/**
+ * DPSW IRQ Index and Events
+ */
+
+#define DPSW_IRQ_INDEX_IF 0x0000
+#define DPSW_IRQ_INDEX_L2SW 0x0001
+
+/**
+ * IRQ event - Indicates that the link state changed
+ */
+#define DPSW_IRQ_EVENT_LINK_CHANGED 0x0001
+
+/**
+ * struct dpsw_irq_cfg - IRQ configuration
+ * @addr: Address that must be written to signal a message-based interrupt
+ * @val: Value to write into irq_addr address
+ * @irq_num: A user defined number associated with this IRQ
+ */
+struct dpsw_irq_cfg {
+ u64 addr;
+ u32 val;
+ int irq_num;
+};
+
+int dpsw_set_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 en);
+
+int dpsw_set_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 mask);
+
+int dpsw_get_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *status);
+
+int dpsw_clear_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 status);
+
+/**
+ * struct dpsw_attr - Structure representing DPSW attributes
+ * @id: DPSW object ID
+ * @options: Enable/Disable DPSW features
+ * @max_vlans: Maximum Number of VLANs
+ * @max_meters_per_if: Number of meters per interface
+ * @max_fdbs: Maximum Number of FDBs
+ * @max_fdb_entries: Number of FDB entries for default FDB table;
+ * 0 - indicates default 1024 entries.
+ * @fdb_aging_time: Default FDB aging time for default FDB table;
+ * 0 - indicates default 300 seconds
+ * @max_fdb_mc_groups: Number of multicast groups in each FDB table;
+ * 0 - indicates default 32
+ * @mem_size: DPSW frame storage memory size
+ * @num_ifs: Number of interfaces
+ * @num_vlans: Current number of VLANs
+ * @num_fdbs: Current number of FDBs
+ * @component_type: Component type of this bridge
+ */
+struct dpsw_attr {
+ int id;
+ u64 options;
+ u16 max_vlans;
+ u8 max_meters_per_if;
+ u8 max_fdbs;
+ u16 max_fdb_entries;
+ u16 fdb_aging_time;
+ u16 max_fdb_mc_groups;
+ u16 num_ifs;
+ u16 mem_size;
+ u16 num_vlans;
+ u8 num_fdbs;
+ enum dpsw_component_type component_type;
+};
+
+int dpsw_get_attributes(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpsw_attr *attr);
+
+/**
+ * enum dpsw_action - Action selection for special/control frames
+ * @DPSW_ACTION_DROP: Drop frame
+ * @DPSW_ACTION_REDIRECT: Redirect frame to control port
+ */
+enum dpsw_action {
+ DPSW_ACTION_DROP = 0,
+ DPSW_ACTION_REDIRECT = 1
+};
+
+/**
+ * Enable auto-negotiation
+ */
+#define DPSW_LINK_OPT_AUTONEG 0x0000000000000001ULL
+/**
+ * Enable half-duplex mode
+ */
+#define DPSW_LINK_OPT_HALF_DUPLEX 0x0000000000000002ULL
+/**
+ * Enable pause frames
+ */
+#define DPSW_LINK_OPT_PAUSE 0x0000000000000004ULL
+/**
+ * Enable a-symmetric pause frames
+ */
+#define DPSW_LINK_OPT_ASYM_PAUSE 0x0000000000000008ULL
+
+/**
+ * struct dpsw_link_cfg - Structure representing DPSW link configuration
+ * @rate: Rate
+ * @options: Mask of available options; use 'DPSW_LINK_OPT_<X>' values
+ */
+struct dpsw_link_cfg {
+ u32 rate;
+ u64 options;
+};
+
+int dpsw_if_set_link_cfg(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ struct dpsw_link_cfg *cfg);
+/**
+ * struct dpsw_link_state - Structure representing DPSW link state
+ * @rate: Rate
+ * @options: Mask of available options; use 'DPSW_LINK_OPT_<X>' values
+ * @up: 0 - covers two cases: down and disconnected, 1 - up
+ */
+struct dpsw_link_state {
+ u32 rate;
+ u64 options;
+ u8 up;
+};
+
+int dpsw_if_get_link_state(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ struct dpsw_link_state *state);
+
+int dpsw_if_set_flooding(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ u8 en);
+
+int dpsw_if_set_broadcast(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ u8 en);
+
+/**
+ * struct dpsw_tci_cfg - Tag Control Information (TCI) configuration
+ * @pcp: Priority Code Point (PCP): a 3-bit field which refers
+ * to the IEEE 802.1p priority
+ * @dei: Drop Eligible Indicator (DEI): a 1-bit field. May be used
+ * separately or in conjunction with PCP to indicate frames
+ * eligible to be dropped in the presence of congestion
+ * @vlan_id: VLAN Identifier (VID): a 12-bit field specifying the VLAN
+ * to which the frame belongs. The hexadecimal values
+ * of 0x000 and 0xFFF are reserved;
+ * all other values may be used as VLAN identifiers,
+ * allowing up to 4,094 VLANs
+ */
+struct dpsw_tci_cfg {
+ u8 pcp;
+ u8 dei;
+ u16 vlan_id;
+};
+
+int dpsw_if_set_tci(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ const struct dpsw_tci_cfg *cfg);
+
+int dpsw_if_get_tci(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ struct dpsw_tci_cfg *cfg);
+
+/**
+ * enum dpsw_stp_state - Spanning Tree Protocol (STP) states
+ * @DPSW_STP_STATE_BLOCKING: Blocking state
+ * @DPSW_STP_STATE_LISTENING: Listening state
+ * @DPSW_STP_STATE_LEARNING: Learning state
+ * @DPSW_STP_STATE_FORWARDING: Forwarding state
+ *
+ */
+enum dpsw_stp_state {
+ DPSW_STP_STATE_DISABLED = 0,
+ DPSW_STP_STATE_LISTENING = 1,
+ DPSW_STP_STATE_LEARNING = 2,
+ DPSW_STP_STATE_FORWARDING = 3,
+ DPSW_STP_STATE_BLOCKING = 0
+};
+
+/**
+ * struct dpsw_stp_cfg - Spanning Tree Protocol (STP) Configuration
+ * @vlan_id: VLAN ID STP state
+ * @state: STP state
+ */
+struct dpsw_stp_cfg {
+ u16 vlan_id;
+ enum dpsw_stp_state state;
+};
+
+int dpsw_if_set_stp(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ const struct dpsw_stp_cfg *cfg);
+
+/**
+ * enum dpsw_accepted_frames - Types of frames to accept
+ * @DPSW_ADMIT_ALL: The device accepts VLAN tagged, untagged and
+ * priority tagged frames
+ * @DPSW_ADMIT_ONLY_VLAN_TAGGED: The device discards untagged frames or
+ * Priority-Tagged frames received on this interface.
+ *
+ */
+enum dpsw_accepted_frames {
+ DPSW_ADMIT_ALL = 1,
+ DPSW_ADMIT_ONLY_VLAN_TAGGED = 3
+};
+
+/**
+ * enum dpsw_counter - Counters types
+ * @DPSW_CNT_ING_FRAME: Counts ingress frames
+ * @DPSW_CNT_ING_BYTE: Counts ingress bytes
+ * @DPSW_CNT_ING_FLTR_FRAME: Counts filtered ingress frames
+ * @DPSW_CNT_ING_FRAME_DISCARD: Counts discarded ingress frame
+ * @DPSW_CNT_ING_MCAST_FRAME: Counts ingress multicast frames
+ * @DPSW_CNT_ING_MCAST_BYTE: Counts ingress multicast bytes
+ * @DPSW_CNT_ING_BCAST_FRAME: Counts ingress broadcast frames
+ * @DPSW_CNT_ING_BCAST_BYTES: Counts ingress broadcast bytes
+ * @DPSW_CNT_EGR_FRAME: Counts egress frames
+ * @DPSW_CNT_EGR_BYTE: Counts eEgress bytes
+ * @DPSW_CNT_EGR_FRAME_DISCARD: Counts discarded egress frames
+ * @DPSW_CNT_EGR_STP_FRAME_DISCARD: Counts egress STP discarded frames
+ */
+enum dpsw_counter {
+ DPSW_CNT_ING_FRAME = 0x0,
+ DPSW_CNT_ING_BYTE = 0x1,
+ DPSW_CNT_ING_FLTR_FRAME = 0x2,
+ DPSW_CNT_ING_FRAME_DISCARD = 0x3,
+ DPSW_CNT_ING_MCAST_FRAME = 0x4,
+ DPSW_CNT_ING_MCAST_BYTE = 0x5,
+ DPSW_CNT_ING_BCAST_FRAME = 0x6,
+ DPSW_CNT_ING_BCAST_BYTES = 0x7,
+ DPSW_CNT_EGR_FRAME = 0x8,
+ DPSW_CNT_EGR_BYTE = 0x9,
+ DPSW_CNT_EGR_FRAME_DISCARD = 0xa,
+ DPSW_CNT_EGR_STP_FRAME_DISCARD = 0xb
+};
+
+int dpsw_if_get_counter(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ enum dpsw_counter type,
+ u64 *counter);
+
+int dpsw_if_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id);
+
+int dpsw_if_disable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id);
+
+int dpsw_if_set_max_frame_length(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ u16 frame_length);
+
+/**
+ * struct dpsw_vlan_cfg - VLAN Configuration
+ * @fdb_id: Forwarding Data Base
+ */
+struct dpsw_vlan_cfg {
+ u16 fdb_id;
+};
+
+int dpsw_vlan_add(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 vlan_id,
+ const struct dpsw_vlan_cfg *cfg);
+
+/**
+ * struct dpsw_vlan_if_cfg - Set of VLAN Interfaces
+ * @num_ifs: The number of interfaces that are assigned to the egress
+ * list for this VLAN
+ * @if_id: The set of interfaces that are
+ * assigned to the egress list for this VLAN
+ */
+struct dpsw_vlan_if_cfg {
+ u16 num_ifs;
+ u16 if_id[DPSW_MAX_IF];
+};
+
+int dpsw_vlan_add_if(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 vlan_id,
+ const struct dpsw_vlan_if_cfg *cfg);
+
+int dpsw_vlan_add_if_untagged(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 vlan_id,
+ const struct dpsw_vlan_if_cfg *cfg);
+
+int dpsw_vlan_remove_if(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 vlan_id,
+ const struct dpsw_vlan_if_cfg *cfg);
+
+int dpsw_vlan_remove_if_untagged(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 vlan_id,
+ const struct dpsw_vlan_if_cfg *cfg);
+
+int dpsw_vlan_remove(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 vlan_id);
+
+/**
+ * enum dpsw_fdb_entry_type - FDB Entry type - Static/Dynamic
+ * @DPSW_FDB_ENTRY_STATIC: Static entry
+ * @DPSW_FDB_ENTRY_DINAMIC: Dynamic entry
+ */
+enum dpsw_fdb_entry_type {
+ DPSW_FDB_ENTRY_STATIC = 0,
+ DPSW_FDB_ENTRY_DINAMIC = 1
+};
+
+/**
+ * struct dpsw_fdb_unicast_cfg - Unicast entry configuration
+ * @type: Select static or dynamic entry
+ * @mac_addr: MAC address
+ * @if_egress: Egress interface ID
+ */
+struct dpsw_fdb_unicast_cfg {
+ enum dpsw_fdb_entry_type type;
+ u8 mac_addr[6];
+ u16 if_egress;
+};
+
+int dpsw_fdb_add_unicast(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 fdb_id,
+ const struct dpsw_fdb_unicast_cfg *cfg);
+
+int dpsw_fdb_remove_unicast(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 fdb_id,
+ const struct dpsw_fdb_unicast_cfg *cfg);
+
+/**
+ * struct dpsw_fdb_multicast_cfg - Multi-cast entry configuration
+ * @type: Select static or dynamic entry
+ * @mac_addr: MAC address
+ * @num_ifs: Number of external and internal interfaces
+ * @if_id: Egress interface IDs
+ */
+struct dpsw_fdb_multicast_cfg {
+ enum dpsw_fdb_entry_type type;
+ u8 mac_addr[6];
+ u16 num_ifs;
+ u16 if_id[DPSW_MAX_IF];
+};
+
+int dpsw_fdb_add_multicast(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 fdb_id,
+ const struct dpsw_fdb_multicast_cfg *cfg);
+
+int dpsw_fdb_remove_multicast(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 fdb_id,
+ const struct dpsw_fdb_multicast_cfg *cfg);
+
+/**
+ * enum dpsw_fdb_learning_mode - Auto-learning modes
+ * @DPSW_FDB_LEARNING_MODE_DIS: Disable Auto-learning
+ * @DPSW_FDB_LEARNING_MODE_HW: Enable HW auto-Learning
+ * @DPSW_FDB_LEARNING_MODE_NON_SECURE: Enable None secure learning by CPU
+ * @DPSW_FDB_LEARNING_MODE_SECURE: Enable secure learning by CPU
+ *
+ * NONE - SECURE LEARNING
+ * SMAC found DMAC found CTLU Action
+ * v v Forward frame to
+ * 1. DMAC destination
+ * - v Forward frame to
+ * 1. DMAC destination
+ * 2. Control interface
+ * v - Forward frame to
+ * 1. Flooding list of interfaces
+ * - - Forward frame to
+ * 1. Flooding list of interfaces
+ * 2. Control interface
+ * SECURE LEARING
+ * SMAC found DMAC found CTLU Action
+ * v v Forward frame to
+ * 1. DMAC destination
+ * - v Forward frame to
+ * 1. Control interface
+ * v - Forward frame to
+ * 1. Flooding list of interfaces
+ * - - Forward frame to
+ * 1. Control interface
+ */
+enum dpsw_fdb_learning_mode {
+ DPSW_FDB_LEARNING_MODE_DIS = 0,
+ DPSW_FDB_LEARNING_MODE_HW = 1,
+ DPSW_FDB_LEARNING_MODE_NON_SECURE = 2,
+ DPSW_FDB_LEARNING_MODE_SECURE = 3
+};
+
+int dpsw_fdb_set_learning_mode(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 fdb_id,
+ enum dpsw_fdb_learning_mode mode);
+
+/**
+ * struct dpsw_fdb_attr - FDB Attributes
+ * @max_fdb_entries: Number of FDB entries
+ * @fdb_aging_time: Aging time in seconds
+ * @learning_mode: Learning mode
+ * @num_fdb_mc_groups: Current number of multicast groups
+ * @max_fdb_mc_groups: Maximum number of multicast groups
+ */
+struct dpsw_fdb_attr {
+ u16 max_fdb_entries;
+ u16 fdb_aging_time;
+ enum dpsw_fdb_learning_mode learning_mode;
+ u16 num_fdb_mc_groups;
+ u16 max_fdb_mc_groups;
+};
+
+int dpsw_get_api_version(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 *major_ver,
+ u16 *minor_ver);
+
+#endif /* __FSL_DPSW_H */
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethsw/ethsw-ethtool.c
@@ -0,0 +1,206 @@
+/* Copyright 2014-2016 Freescale Semiconductor Inc.
+ * Copyright 2017 NXP
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "ethsw.h"
+
+static struct {
+ enum dpsw_counter id;
+ char name[ETH_GSTRING_LEN];
+} ethsw_ethtool_counters[] = {
+ {DPSW_CNT_ING_FRAME, "rx frames"},
+ {DPSW_CNT_ING_BYTE, "rx bytes"},
+ {DPSW_CNT_ING_FLTR_FRAME, "rx filtered frames"},
+ {DPSW_CNT_ING_FRAME_DISCARD, "rx discarded frames"},
+ {DPSW_CNT_ING_BCAST_FRAME, "rx b-cast frames"},
+ {DPSW_CNT_ING_BCAST_BYTES, "rx b-cast bytes"},
+ {DPSW_CNT_ING_MCAST_FRAME, "rx m-cast frames"},
+ {DPSW_CNT_ING_MCAST_BYTE, "rx m-cast bytes"},
+ {DPSW_CNT_EGR_FRAME, "tx frames"},
+ {DPSW_CNT_EGR_BYTE, "tx bytes"},
+ {DPSW_CNT_EGR_FRAME_DISCARD, "tx discarded frames"},
+
+};
+
+#define ETHSW_NUM_COUNTERS ARRAY_SIZE(ethsw_ethtool_counters)
+
+static void ethsw_get_drvinfo(struct net_device *netdev,
+ struct ethtool_drvinfo *drvinfo)
+{
+ struct ethsw_port_priv *port_priv = netdev_priv(netdev);
+ u16 version_major, version_minor;
+ int err;
+
+ strlcpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
+
+ err = dpsw_get_api_version(port_priv->ethsw_data->mc_io, 0,
+ &version_major,
+ &version_minor);
+ if (err)
+ strlcpy(drvinfo->fw_version, "N/A",
+ sizeof(drvinfo->fw_version));
+ else
+ snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+ "%u.%u", version_major, version_minor);
+
+ strlcpy(drvinfo->bus_info, dev_name(netdev->dev.parent->parent),
+ sizeof(drvinfo->bus_info));
+}
+
+static int
+ethsw_get_link_ksettings(struct net_device *netdev,
+ struct ethtool_link_ksettings *link_ksettings)
+{
+ struct ethsw_port_priv *port_priv = netdev_priv(netdev);
+ struct dpsw_link_state state = {0};
+ int err = 0;
+
+ err = dpsw_if_get_link_state(port_priv->ethsw_data->mc_io, 0,
+ port_priv->ethsw_data->dpsw_handle,
+ port_priv->idx,
+ &state);
+ if (err) {
+ netdev_err(netdev, "ERROR %d getting link state", err);
+ goto out;
+ }
+
+ /* At the moment, we have no way of interrogating the DPMAC
+ * from the DPSW side or there may not exist a DPMAC at all.
+ * Report only autoneg state, duplexity and speed.
+ */
+ if (state.options & DPSW_LINK_OPT_AUTONEG)
+ link_ksettings->base.autoneg = AUTONEG_ENABLE;
+ if (!(state.options & DPSW_LINK_OPT_HALF_DUPLEX))
+ link_ksettings->base.duplex = DUPLEX_FULL;
+ link_ksettings->base.speed = state.rate;
+
+out:
+ return err;
+}
+
+static int
+ethsw_set_link_ksettings(struct net_device *netdev,
+ const struct ethtool_link_ksettings *link_ksettings)
+{
+ struct ethsw_port_priv *port_priv = netdev_priv(netdev);
+ struct dpsw_link_cfg cfg = {0};
+ int err = 0;
+
+ netdev_dbg(netdev, "Setting link parameters...");
+
+ /* Due to a temporary MC limitation, the DPSW port must be down
+ * in order to be able to change link settings. Taking steps to let
+ * the user know that.
+ */
+ if (netif_running(netdev)) {
+ netdev_info(netdev, "Sorry, interface must be brought down first.\n");
+ return -EACCES;
+ }
+
+ cfg.rate = link_ksettings->base.speed;
+ if (link_ksettings->base.autoneg == AUTONEG_ENABLE)
+ cfg.options |= DPSW_LINK_OPT_AUTONEG;
+ else
+ cfg.options &= ~DPSW_LINK_OPT_AUTONEG;
+ if (link_ksettings->base.duplex == DUPLEX_HALF)
+ cfg.options |= DPSW_LINK_OPT_HALF_DUPLEX;
+ else
+ cfg.options &= ~DPSW_LINK_OPT_HALF_DUPLEX;
+
+ err = dpsw_if_set_link_cfg(port_priv->ethsw_data->mc_io, 0,
+ port_priv->ethsw_data->dpsw_handle,
+ port_priv->idx,
+ &cfg);
+ if (err)
+ /* ethtool will be loud enough if we return an error; no point
+ * in putting our own error message on the console by default
+ */
+ netdev_dbg(netdev, "ERROR %d setting link cfg", err);
+
+ return err;
+}
+
+static int ethsw_ethtool_get_sset_count(struct net_device *dev, int sset)
+{
+ switch (sset) {
+ case ETH_SS_STATS:
+ return ETHSW_NUM_COUNTERS;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static void ethsw_ethtool_get_strings(struct net_device *netdev,
+ u32 stringset, u8 *data)
+{
+ int i;
+
+ switch (stringset) {
+ case ETH_SS_STATS:
+ for (i = 0; i < ETHSW_NUM_COUNTERS; i++)
+ memcpy(data + i * ETH_GSTRING_LEN,
+ ethsw_ethtool_counters[i].name, ETH_GSTRING_LEN);
+ break;
+ }
+}
+
+static void ethsw_ethtool_get_stats(struct net_device *netdev,
+ struct ethtool_stats *stats,
+ u64 *data)
+{
+ struct ethsw_port_priv *port_priv = netdev_priv(netdev);
+ int i, err;
+
+ memset(data, 0,
+ sizeof(u64) * ETHSW_NUM_COUNTERS);
+
+ for (i = 0; i < ETHSW_NUM_COUNTERS; i++) {
+ err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0,
+ port_priv->ethsw_data->dpsw_handle,
+ port_priv->idx,
+ ethsw_ethtool_counters[i].id,
+ &data[i]);
+ if (err)
+ netdev_err(netdev, "dpsw_if_get_counter[%s] err %d\n",
+ ethsw_ethtool_counters[i].name, err);
+ }
+}
+
+const struct ethtool_ops ethsw_port_ethtool_ops = {
+ .get_drvinfo = ethsw_get_drvinfo,
+ .get_link = ethtool_op_get_link,
+ .get_link_ksettings = ethsw_get_link_ksettings,
+ .set_link_ksettings = ethsw_set_link_ksettings,
+ .get_strings = ethsw_ethtool_get_strings,
+ .get_ethtool_stats = ethsw_ethtool_get_stats,
+ .get_sset_count = ethsw_ethtool_get_sset_count,
+};
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethsw/ethsw.c
@@ -0,0 +1,1438 @@
+/* Copyright 2014-2016 Freescale Semiconductor Inc.
+ * Copyright 2017 NXP
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <linux/module.h>
+
+#include <linux/interrupt.h>
+#include <linux/msi.h>
+#include <linux/kthread.h>
+#include <linux/workqueue.h>
+
+#include <linux/fsl/mc.h>
+
+#include "ethsw.h"
+
+static struct workqueue_struct *ethsw_owq;
+
+/* Minimal supported DPSW version */
+#define DPSW_MIN_VER_MAJOR 8
+#define DPSW_MIN_VER_MINOR 0
+
+#define DEFAULT_VLAN_ID 1
+
+static int ethsw_add_vlan(struct ethsw_core *ethsw, u16 vid)
+{
+ int err;
+
+ struct dpsw_vlan_cfg vcfg = {
+ .fdb_id = 0,
+ };
+
+ if (ethsw->vlans[vid]) {
+ dev_err(ethsw->dev, "VLAN already configured\n");
+ return -EEXIST;
+ }
+
+ err = dpsw_vlan_add(ethsw->mc_io, 0,
+ ethsw->dpsw_handle, vid, &vcfg);
+ if (err) {
+ dev_err(ethsw->dev, "dpsw_vlan_add err %d\n", err);
+ return err;
+ }
+ ethsw->vlans[vid] = ETHSW_VLAN_MEMBER;
+
+ return 0;
+}
+
+static int ethsw_port_set_pvid(struct ethsw_port_priv *port_priv, u16 pvid)
+{
+ struct ethsw_core *ethsw = port_priv->ethsw_data;
+ struct net_device *netdev = port_priv->netdev;
+ struct dpsw_tci_cfg tci_cfg = { 0 };
+ bool is_oper;
+ int err, ret;
+
+ err = dpsw_if_get_tci(ethsw->mc_io, 0, ethsw->dpsw_handle,
+ port_priv->idx, &tci_cfg);
+ if (err) {
+ netdev_err(netdev, "dpsw_if_get_tci err %d\n", err);
+ return err;
+ }
+
+ tci_cfg.vlan_id = pvid;
+
+ /* Interface needs to be down to change PVID */
+ is_oper = netif_oper_up(netdev);
+ if (is_oper) {
+ err = dpsw_if_disable(ethsw->mc_io, 0,
+ ethsw->dpsw_handle,
+ port_priv->idx);
+ if (err) {
+ netdev_err(netdev, "dpsw_if_disable err %d\n", err);
+ return err;
+ }
+ }
+
+ err = dpsw_if_set_tci(ethsw->mc_io, 0, ethsw->dpsw_handle,
+ port_priv->idx, &tci_cfg);
+ if (err) {
+ netdev_err(netdev, "dpsw_if_set_tci err %d\n", err);
+ goto set_tci_error;
+ }
+
+ /* Delete previous PVID info and mark the new one */
+ port_priv->vlans[port_priv->pvid] &= ~ETHSW_VLAN_PVID;
+ port_priv->vlans[pvid] |= ETHSW_VLAN_PVID;
+ port_priv->pvid = pvid;
+
+set_tci_error:
+ if (is_oper) {
+ ret = dpsw_if_enable(ethsw->mc_io, 0,
+ ethsw->dpsw_handle,
+ port_priv->idx);
+ if (ret) {
+ netdev_err(netdev, "dpsw_if_enable err %d\n", ret);
+ return ret;
+ }
+ }
+
+ return err;
+}
+
+static int ethsw_port_add_vlan(struct ethsw_port_priv *port_priv,
+ u16 vid, u16 flags)
+{
+ struct ethsw_core *ethsw = port_priv->ethsw_data;
+ struct net_device *netdev = port_priv->netdev;
+ struct dpsw_vlan_if_cfg vcfg;
+ int err;
+
+ if (port_priv->vlans[vid]) {
+ netdev_warn(netdev, "VLAN %d already configured\n", vid);
+ return -EEXIST;
+ }
+
+ vcfg.num_ifs = 1;
+ vcfg.if_id[0] = port_priv->idx;
+ err = dpsw_vlan_add_if(ethsw->mc_io, 0, ethsw->dpsw_handle, vid, &vcfg);
+ if (err) {
+ netdev_err(netdev, "dpsw_vlan_add_if err %d\n", err);
+ return err;
+ }
+
+ port_priv->vlans[vid] = ETHSW_VLAN_MEMBER;
+
+ if (flags & BRIDGE_VLAN_INFO_UNTAGGED) {
+ err = dpsw_vlan_add_if_untagged(ethsw->mc_io, 0,
+ ethsw->dpsw_handle,
+ vid, &vcfg);
+ if (err) {
+ netdev_err(netdev,
+ "dpsw_vlan_add_if_untagged err %d\n", err);
+ return err;
+ }
+ port_priv->vlans[vid] |= ETHSW_VLAN_UNTAGGED;
+ }
+
+ if (flags & BRIDGE_VLAN_INFO_PVID) {
+ err = ethsw_port_set_pvid(port_priv, vid);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
+static int ethsw_set_learning(struct ethsw_core *ethsw, u8 flag)
+{
+ enum dpsw_fdb_learning_mode learn_mode;
+ int err;
+
+ if (flag)
+ learn_mode = DPSW_FDB_LEARNING_MODE_HW;
+ else
+ learn_mode = DPSW_FDB_LEARNING_MODE_DIS;
+
+ err = dpsw_fdb_set_learning_mode(ethsw->mc_io, 0, ethsw->dpsw_handle, 0,
+ learn_mode);
+ if (err) {
+ dev_err(ethsw->dev, "dpsw_fdb_set_learning_mode err %d\n", err);
+ return err;
+ }
+ ethsw->learning = !!flag;
+
+ return 0;
+}
+
+static int ethsw_port_set_flood(struct ethsw_port_priv *port_priv, u8 flag)
+{
+ int err;
+
+ err = dpsw_if_set_flooding(port_priv->ethsw_data->mc_io, 0,
+ port_priv->ethsw_data->dpsw_handle,
+ port_priv->idx, flag);
+ if (err) {
+ netdev_err(port_priv->netdev,
+ "dpsw_fdb_set_learning_mode err %d\n", err);
+ return err;
+ }
+ port_priv->flood = !!flag;
+
+ return 0;
+}
+
+static int ethsw_port_set_stp_state(struct ethsw_port_priv *port_priv, u8 state)
+{
+ struct dpsw_stp_cfg stp_cfg = {
+ .vlan_id = DEFAULT_VLAN_ID,
+ .state = state,
+ };
+ int err;
+
+ if (!netif_oper_up(port_priv->netdev) || state == port_priv->stp_state)
+ return 0; /* Nothing to do */
+
+ err = dpsw_if_set_stp(port_priv->ethsw_data->mc_io, 0,
+ port_priv->ethsw_data->dpsw_handle,
+ port_priv->idx, &stp_cfg);
+ if (err) {
+ netdev_err(port_priv->netdev,
+ "dpsw_if_set_stp err %d\n", err);
+ return err;
+ }
+
+ port_priv->stp_state = state;
+
+ return 0;
+}
+
+static int ethsw_dellink_switch(struct ethsw_core *ethsw, u16 vid)
+{
+ struct ethsw_port_priv *ppriv_local = NULL;
+ int i, err;
+
+ if (!ethsw->vlans[vid])
+ return -ENOENT;
+
+ err = dpsw_vlan_remove(ethsw->mc_io, 0, ethsw->dpsw_handle, vid);
+ if (err) {
+ dev_err(ethsw->dev, "dpsw_vlan_remove err %d\n", err);
+ return err;
+ }
+ ethsw->vlans[vid] = 0;
+
+ for (i = 0; i < ethsw->sw_attr.num_ifs; i++) {
+ ppriv_local = ethsw->ports[i];
+ ppriv_local->vlans[vid] = 0;
+ }
+
+ return 0;
+}
+
+static int ethsw_port_fdb_add_uc(struct ethsw_port_priv *port_priv,
+ const unsigned char *addr)
+{
+ struct dpsw_fdb_unicast_cfg entry = {0};
+ int err;
+
+ entry.if_egress = port_priv->idx;
+ entry.type = DPSW_FDB_ENTRY_STATIC;
+ ether_addr_copy(entry.mac_addr, addr);
+
+ err = dpsw_fdb_add_unicast(port_priv->ethsw_data->mc_io, 0,
+ port_priv->ethsw_data->dpsw_handle,
+ 0, &entry);
+ if (err)
+ netdev_err(port_priv->netdev,
+ "dpsw_fdb_add_unicast err %d\n", err);
+ return err;
+}
+
+static int ethsw_port_fdb_del_uc(struct ethsw_port_priv *port_priv,
+ const unsigned char *addr)
+{
+ struct dpsw_fdb_unicast_cfg entry = {0};
+ int err;
+
+ entry.if_egress = port_priv->idx;
+ entry.type = DPSW_FDB_ENTRY_STATIC;
+ ether_addr_copy(entry.mac_addr, addr);
+
+ err = dpsw_fdb_remove_unicast(port_priv->ethsw_data->mc_io, 0,
+ port_priv->ethsw_data->dpsw_handle,
+ 0, &entry);
+ /* Silently discard calling multiple times the del command */
+ if (err && err != -ENXIO)
+ netdev_err(port_priv->netdev,
+ "dpsw_fdb_remove_unicast err %d\n", err);
+ return err;
+}
+
+static int ethsw_port_fdb_add_mc(struct ethsw_port_priv *port_priv,
+ const unsigned char *addr)
+{
+ struct dpsw_fdb_multicast_cfg entry = {0};
+ int err;
+
+ ether_addr_copy(entry.mac_addr, addr);
+ entry.type = DPSW_FDB_ENTRY_STATIC;
+ entry.num_ifs = 1;
+ entry.if_id[0] = port_priv->idx;
+
+ err = dpsw_fdb_add_multicast(port_priv->ethsw_data->mc_io, 0,
+ port_priv->ethsw_data->dpsw_handle,
+ 0, &entry);
+ /* Silently discard calling multiple times the add command */
+ if (err && err != -ENXIO)
+ netdev_err(port_priv->netdev, "dpsw_fdb_add_multicast err %d\n",
+ err);
+ return err;
+}
+
+static int ethsw_port_fdb_del_mc(struct ethsw_port_priv *port_priv,
+ const unsigned char *addr)
+{
+ struct dpsw_fdb_multicast_cfg entry = {0};
+ int err;
+
+ ether_addr_copy(entry.mac_addr, addr);
+ entry.type = DPSW_FDB_ENTRY_STATIC;
+ entry.num_ifs = 1;
+ entry.if_id[0] = port_priv->idx;
+
+ err = dpsw_fdb_remove_multicast(port_priv->ethsw_data->mc_io, 0,
+ port_priv->ethsw_data->dpsw_handle,
+ 0, &entry);
+ /* Silently discard calling multiple times the del command */
+ if (err && err != -ENAVAIL)
+ netdev_err(port_priv->netdev,
+ "dpsw_fdb_remove_multicast err %d\n", err);
+ return err;
+}
+
+static void port_get_stats(struct net_device *netdev,
+ struct rtnl_link_stats64 *stats)
+{
+ struct ethsw_port_priv *port_priv = netdev_priv(netdev);
+ u64 tmp;
+ int err;
+
+ err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0,
+ port_priv->ethsw_data->dpsw_handle,
+ port_priv->idx,
+ DPSW_CNT_ING_FRAME, &stats->rx_packets);
+ if (err)
+ goto error;
+
+ err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0,
+ port_priv->ethsw_data->dpsw_handle,
+ port_priv->idx,
+ DPSW_CNT_EGR_FRAME, &stats->tx_packets);
+ if (err)
+ goto error;
+
+ err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0,
+ port_priv->ethsw_data->dpsw_handle,
+ port_priv->idx,
+ DPSW_CNT_ING_BYTE, &stats->rx_bytes);
+ if (err)
+ goto error;
+
+ err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0,
+ port_priv->ethsw_data->dpsw_handle,
+ port_priv->idx,
+ DPSW_CNT_EGR_BYTE, &stats->tx_bytes);
+ if (err)
+ goto error;
+
+ err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0,
+ port_priv->ethsw_data->dpsw_handle,
+ port_priv->idx,
+ DPSW_CNT_ING_FRAME_DISCARD,
+ &stats->rx_dropped);
+ if (err)
+ goto error;
+
+ err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0,
+ port_priv->ethsw_data->dpsw_handle,
+ port_priv->idx,
+ DPSW_CNT_ING_FLTR_FRAME,
+ &tmp);
+ if (err)
+ goto error;
+ stats->rx_dropped += tmp;
+
+ err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0,
+ port_priv->ethsw_data->dpsw_handle,
+ port_priv->idx,
+ DPSW_CNT_EGR_FRAME_DISCARD,
+ &stats->tx_dropped);
+ if (err)
+ goto error;
+
+ return;
+
+error:
+ netdev_err(netdev, "dpsw_if_get_counter err %d\n", err);
+}
+
+static bool port_has_offload_stats(const struct net_device *netdev,
+ int attr_id)
+{
+ return (attr_id == IFLA_OFFLOAD_XSTATS_CPU_HIT);
+}
+
+static int port_get_offload_stats(int attr_id,
+ const struct net_device *netdev,
+ void *sp)
+{
+ switch (attr_id) {
+ case IFLA_OFFLOAD_XSTATS_CPU_HIT:
+ port_get_stats((struct net_device *)netdev, sp);
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+static int port_change_mtu(struct net_device *netdev, int mtu)
+{
+ struct ethsw_port_priv *port_priv = netdev_priv(netdev);
+ int err;
+
+ err = dpsw_if_set_max_frame_length(port_priv->ethsw_data->mc_io,
+ 0,
+ port_priv->ethsw_data->dpsw_handle,
+ port_priv->idx,
+ (u16)ETHSW_L2_MAX_FRM(mtu));
+ if (err) {
+ netdev_err(netdev,
+ "dpsw_if_set_max_frame_length() err %d\n", err);
+ return err;
+ }
+
+ netdev->mtu = mtu;
+ return 0;
+}
+
+static int port_carrier_state_sync(struct net_device *netdev)
+{
+ struct ethsw_port_priv *port_priv = netdev_priv(netdev);
+ struct dpsw_link_state state;
+ int err;
+
+ err = dpsw_if_get_link_state(port_priv->ethsw_data->mc_io, 0,
+ port_priv->ethsw_data->dpsw_handle,
+ port_priv->idx, &state);
+ if (err) {
+ netdev_err(netdev, "dpsw_if_get_link_state() err %d\n", err);
+ return err;
+ }
+
+ WARN_ONCE(state.up > 1, "Garbage read into link_state");
+
+ if (state.up != port_priv->link_state) {
+ if (state.up)
+ netif_carrier_on(netdev);
+ else
+ netif_carrier_off(netdev);
+ port_priv->link_state = state.up;
+ }
+ return 0;
+}
+
+static int port_open(struct net_device *netdev)
+{
+ struct ethsw_port_priv *port_priv = netdev_priv(netdev);
+ int err;
+
+ /* No need to allow Tx as control interface is disabled */
+ netif_tx_stop_all_queues(netdev);
+
+ err = dpsw_if_enable(port_priv->ethsw_data->mc_io, 0,
+ port_priv->ethsw_data->dpsw_handle,
+ port_priv->idx);
+ if (err) {
+ netdev_err(netdev, "dpsw_if_enable err %d\n", err);
+ return err;
+ }
+
+ /* sync carrier state */
+ err = port_carrier_state_sync(netdev);
+ if (err) {
+ netdev_err(netdev,
+ "port_carrier_state_sync err %d\n", err);
+ goto err_carrier_sync;
+ }
+
+ return 0;
+
+err_carrier_sync:
+ dpsw_if_disable(port_priv->ethsw_data->mc_io, 0,
+ port_priv->ethsw_data->dpsw_handle,
+ port_priv->idx);
+ return err;
+}
+
+static int port_stop(struct net_device *netdev)
+{
+ struct ethsw_port_priv *port_priv = netdev_priv(netdev);
+ int err;
+
+ err = dpsw_if_disable(port_priv->ethsw_data->mc_io, 0,
+ port_priv->ethsw_data->dpsw_handle,
+ port_priv->idx);
+ if (err) {
+ netdev_err(netdev, "dpsw_if_disable err %d\n", err);
+ return err;
+ }
+
+ return 0;
+}
+
+static netdev_tx_t port_dropframe(struct sk_buff *skb,
+ struct net_device *netdev)
+{
+ /* we don't support I/O for now, drop the frame */
+ dev_kfree_skb_any(skb);
+
+ return NETDEV_TX_OK;
+}
+
+static const struct net_device_ops ethsw_port_ops = {
+ .ndo_open = port_open,
+ .ndo_stop = port_stop,
+
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_change_mtu = port_change_mtu,
+ .ndo_has_offload_stats = port_has_offload_stats,
+ .ndo_get_offload_stats = port_get_offload_stats,
+
+ .ndo_start_xmit = port_dropframe,
+};
+
+static void ethsw_links_state_update(struct ethsw_core *ethsw)
+{
+ int i;
+
+ for (i = 0; i < ethsw->sw_attr.num_ifs; i++)
+ port_carrier_state_sync(ethsw->ports[i]->netdev);
+}
+
+static irqreturn_t ethsw_irq0_handler(int irq_num, void *arg)
+{
+ return IRQ_WAKE_THREAD;
+}
+
+static irqreturn_t ethsw_irq0_handler_thread(int irq_num, void *arg)
+{
+ struct device *dev = (struct device *)arg;
+ struct ethsw_core *ethsw = dev_get_drvdata(dev);
+
+ /* Mask the events and the if_id reserved bits to be cleared on read */
+ u32 status = DPSW_IRQ_EVENT_LINK_CHANGED | 0xFFFF0000;
+ int err;
+
+ err = dpsw_get_irq_status(ethsw->mc_io, 0, ethsw->dpsw_handle,
+ DPSW_IRQ_INDEX_IF, &status);
+ if (err) {
+ dev_err(dev, "Can't get irq status (err %d)", err);
+
+ err = dpsw_clear_irq_status(ethsw->mc_io, 0, ethsw->dpsw_handle,
+ DPSW_IRQ_INDEX_IF, 0xFFFFFFFF);
+ if (err)
+ dev_err(dev, "Can't clear irq status (err %d)", err);
+ goto out;
+ }
+
+ if (status & DPSW_IRQ_EVENT_LINK_CHANGED)
+ ethsw_links_state_update(ethsw);
+
+out:
+ return IRQ_HANDLED;
+}
+
+static int ethsw_setup_irqs(struct fsl_mc_device *sw_dev)
+{
+ struct device *dev = &sw_dev->dev;
+ struct ethsw_core *ethsw = dev_get_drvdata(dev);
+ u32 mask = DPSW_IRQ_EVENT_LINK_CHANGED;
+ struct fsl_mc_device_irq *irq;
+ int err;
+
+ err = fsl_mc_allocate_irqs(sw_dev);
+ if (err) {
+ dev_err(dev, "MC irqs allocation failed\n");
+ return err;
+ }
+
+ if (WARN_ON(sw_dev->obj_desc.irq_count != DPSW_IRQ_NUM)) {
+ err = -EINVAL;
+ goto free_irq;
+ }
+
+ err = dpsw_set_irq_enable(ethsw->mc_io, 0, ethsw->dpsw_handle,
+ DPSW_IRQ_INDEX_IF, 0);
+ if (err) {
+ dev_err(dev, "dpsw_set_irq_enable err %d\n", err);
+ goto free_irq;
+ }
+
+ irq = sw_dev->irqs[DPSW_IRQ_INDEX_IF];
+
+ err = devm_request_threaded_irq(dev, irq->msi_desc->irq,
+ ethsw_irq0_handler,
+ ethsw_irq0_handler_thread,
+ IRQF_NO_SUSPEND | IRQF_ONESHOT,
+ dev_name(dev), dev);
+ if (err) {
+ dev_err(dev, "devm_request_threaded_irq(): %d", err);
+ goto free_irq;
+ }
+
+ err = dpsw_set_irq_mask(ethsw->mc_io, 0, ethsw->dpsw_handle,
+ DPSW_IRQ_INDEX_IF, mask);
+ if (err) {
+ dev_err(dev, "dpsw_set_irq_mask(): %d", err);
+ goto free_devm_irq;
+ }
+
+ err = dpsw_set_irq_enable(ethsw->mc_io, 0, ethsw->dpsw_handle,
+ DPSW_IRQ_INDEX_IF, 1);
+ if (err) {
+ dev_err(dev, "dpsw_set_irq_enable(): %d", err);
+ goto free_devm_irq;
+ }
+
+ return 0;
+
+free_devm_irq:
+ devm_free_irq(dev, irq->msi_desc->irq, dev);
+free_irq:
+ fsl_mc_free_irqs(sw_dev);
+ return err;
+}
+
+static void ethsw_teardown_irqs(struct fsl_mc_device *sw_dev)
+{
+ struct device *dev = &sw_dev->dev;
+ struct ethsw_core *ethsw = dev_get_drvdata(dev);
+ struct fsl_mc_device_irq *irq;
+ int err;
+
+ irq = sw_dev->irqs[DPSW_IRQ_INDEX_IF];
+ err = dpsw_set_irq_enable(ethsw->mc_io, 0, ethsw->dpsw_handle,
+ DPSW_IRQ_INDEX_IF, 0);
+ if (err)
+ dev_err(dev, "dpsw_set_irq_enable err %d\n", err);
+
+ fsl_mc_free_irqs(sw_dev);
+}
+
+static int swdev_port_attr_get(struct net_device *netdev,
+ struct switchdev_attr *attr)
+{
+ struct ethsw_port_priv *port_priv = netdev_priv(netdev);
+
+ switch (attr->id) {
+ case SWITCHDEV_ATTR_ID_PORT_PARENT_ID:
+ attr->u.ppid.id_len = 1;
+ attr->u.ppid.id[0] = port_priv->ethsw_data->dev_id;
+ break;
+ case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
+ attr->u.brport_flags =
+ (port_priv->ethsw_data->learning ? BR_LEARNING : 0) |
+ (port_priv->flood ? BR_FLOOD : 0);
+ break;
+ case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT:
+ attr->u.brport_flags_support = BR_LEARNING | BR_FLOOD;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
+static int port_attr_stp_state_set(struct net_device *netdev,
+ struct switchdev_trans *trans,
+ u8 state)
+{
+ struct ethsw_port_priv *port_priv = netdev_priv(netdev);
+
+ if (switchdev_trans_ph_prepare(trans))
+ return 0;
+
+ return ethsw_port_set_stp_state(port_priv, state);
+}
+
+static int port_attr_br_flags_set(struct net_device *netdev,
+ struct switchdev_trans *trans,
+ unsigned long flags)
+{
+ struct ethsw_port_priv *port_priv = netdev_priv(netdev);
+ int err = 0;
+
+ if (switchdev_trans_ph_prepare(trans))
+ return 0;
+
+ /* Learning is enabled per switch */
+ err = ethsw_set_learning(port_priv->ethsw_data, !!(flags & BR_LEARNING));
+ if (err)
+ goto exit;
+
+ err = ethsw_port_set_flood(port_priv, !!(flags & BR_FLOOD));
+
+exit:
+ return err;
+}
+
+static int swdev_port_attr_set(struct net_device *netdev,
+ const struct switchdev_attr *attr,
+ struct switchdev_trans *trans)
+{
+ int err = 0;
+
+ switch (attr->id) {
+ case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
+ err = port_attr_stp_state_set(netdev, trans,
+ attr->u.stp_state);
+ break;
+ case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
+ err = port_attr_br_flags_set(netdev, trans,
+ attr->u.brport_flags);
+ break;
+ case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
+ /* VLANs are supported by default */
+ break;
+ default:
+ err = -EOPNOTSUPP;
+ break;
+ }
+
+ return err;
+}
+
+static int port_vlans_add(struct net_device *netdev,
+ const struct switchdev_obj_port_vlan *vlan,
+ struct switchdev_trans *trans)
+{
+ struct ethsw_port_priv *port_priv = netdev_priv(netdev);
+ int vid, err;
+
+ if (switchdev_trans_ph_prepare(trans))
+ return 0;
+
+ for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
+ if (!port_priv->ethsw_data->vlans[vid]) {
+ /* this is a new VLAN */
+ err = ethsw_add_vlan(port_priv->ethsw_data, vid);
+ if (err)
+ return err;
+
+ port_priv->ethsw_data->vlans[vid] |= ETHSW_VLAN_GLOBAL;
+ }
+ err = ethsw_port_add_vlan(port_priv, vid, vlan->flags);
+ if (err)
+ break;
+ }
+
+ return err;
+}
+
+static int swdev_port_obj_add(struct net_device *netdev,
+ const struct switchdev_obj *obj,
+ struct switchdev_trans *trans)
+{
+ int err;
+
+ switch (obj->id) {
+ case SWITCHDEV_OBJ_ID_PORT_VLAN:
+ err = port_vlans_add(netdev,
+ SWITCHDEV_OBJ_PORT_VLAN(obj),
+ trans);
+ break;
+ default:
+ err = -EOPNOTSUPP;
+ break;
+ }
+
+ return err;
+}
+
+static int ethsw_port_del_vlan(struct ethsw_port_priv *port_priv, u16 vid)
+{
+ struct ethsw_core *ethsw = port_priv->ethsw_data;
+ struct net_device *netdev = port_priv->netdev;
+ struct dpsw_vlan_if_cfg vcfg;
+ int i, err;
+
+ if (!port_priv->vlans[vid])
+ return -ENOENT;
+
+ if (port_priv->vlans[vid] & ETHSW_VLAN_PVID) {
+ err = ethsw_port_set_pvid(port_priv, 0);
+ if (err)
+ return err;
+ }
+
+ vcfg.num_ifs = 1;
+ vcfg.if_id[0] = port_priv->idx;
+ if (port_priv->vlans[vid] & ETHSW_VLAN_UNTAGGED) {
+ err = dpsw_vlan_remove_if_untagged(ethsw->mc_io, 0,
+ ethsw->dpsw_handle,
+ vid, &vcfg);
+ if (err) {
+ netdev_err(netdev,
+ "dpsw_vlan_remove_if_untagged err %d\n",
+ err);
+ }
+ port_priv->vlans[vid] &= ~ETHSW_VLAN_UNTAGGED;
+ }
+
+ if (port_priv->vlans[vid] & ETHSW_VLAN_MEMBER) {
+ err = dpsw_vlan_remove_if(ethsw->mc_io, 0, ethsw->dpsw_handle,
+ vid, &vcfg);
+ if (err) {
+ netdev_err(netdev,
+ "dpsw_vlan_remove_if err %d\n", err);
+ return err;
+ }
+ port_priv->vlans[vid] &= ~ETHSW_VLAN_MEMBER;
+
+ /* Delete VLAN from switch if it is no longer configured on
+ * any port
+ */
+ for (i = 0; i < ethsw->sw_attr.num_ifs; i++)
+ if (ethsw->ports[i]->vlans[vid] & ETHSW_VLAN_MEMBER)
+ return 0; /* Found a port member in VID */
+
+ ethsw->vlans[vid] &= ~ETHSW_VLAN_GLOBAL;
+
+ err = ethsw_dellink_switch(ethsw, vid);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
+static int port_vlans_del(struct net_device *netdev,
+ const struct switchdev_obj_port_vlan *vlan)
+{
+ struct ethsw_port_priv *port_priv = netdev_priv(netdev);
+ int vid, err;
+
+ for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
+ err = ethsw_port_del_vlan(port_priv, vid);
+ if (err)
+ break;
+ }
+
+ return err;
+}
+
+static int swdev_port_obj_del(struct net_device *netdev,
+ const struct switchdev_obj *obj)
+{
+ int err;
+
+ switch (obj->id) {
+ case SWITCHDEV_OBJ_ID_PORT_VLAN:
+ err = port_vlans_del(netdev, SWITCHDEV_OBJ_PORT_VLAN(obj));
+ break;
+ default:
+ err = -EOPNOTSUPP;
+ break;
+ }
+ return err;
+}
+
+static const struct switchdev_ops ethsw_port_switchdev_ops = {
+ .switchdev_port_attr_get = swdev_port_attr_get,
+ .switchdev_port_attr_set = swdev_port_attr_set,
+ .switchdev_port_obj_add = swdev_port_obj_add,
+ .switchdev_port_obj_del = swdev_port_obj_del,
+};
+
+/* For the moment, only flood setting needs to be updated */
+static int port_bridge_join(struct net_device *netdev)
+{
+ struct ethsw_port_priv *port_priv = netdev_priv(netdev);
+
+ /* Enable flooding */
+ return ethsw_port_set_flood(port_priv, 1);
+}
+
+static int port_bridge_leave(struct net_device *netdev)
+{
+ struct ethsw_port_priv *port_priv = netdev_priv(netdev);
+
+ /* Disable flooding */
+ return ethsw_port_set_flood(port_priv, 0);
+}
+
+static int port_netdevice_event(struct notifier_block *unused,
+ unsigned long event, void *ptr)
+{
+ struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
+ struct netdev_notifier_changeupper_info *info = ptr;
+ struct net_device *upper_dev;
+ int err = 0;
+
+ if (netdev->netdev_ops != &ethsw_port_ops)
+ return NOTIFY_DONE;
+
+ /* Handle just upper dev link/unlink for the moment */
+ if (event == NETDEV_CHANGEUPPER) {
+ upper_dev = info->upper_dev;
+ if (netif_is_bridge_master(upper_dev)) {
+ if (info->linking)
+ err = port_bridge_join(netdev);
+ else
+ err = port_bridge_leave(netdev);
+ }
+ }
+
+ return notifier_from_errno(err);
+}
+
+static struct notifier_block port_nb __read_mostly = {
+ .notifier_call = port_netdevice_event,
+};
+
+struct ethsw_switchdev_event_work {
+ struct work_struct work;
+ struct switchdev_notifier_fdb_info fdb_info;
+ struct net_device *dev;
+ unsigned long event;
+};
+
+static void ethsw_switchdev_event_work(struct work_struct *work)
+{
+ struct ethsw_switchdev_event_work *switchdev_work =
+ container_of(work, struct ethsw_switchdev_event_work, work);
+ struct net_device *dev = switchdev_work->dev;
+ struct switchdev_notifier_fdb_info *fdb_info;
+ struct ethsw_port_priv *port_priv;
+
+ rtnl_lock();
+ port_priv = netdev_priv(dev);
+ fdb_info = &switchdev_work->fdb_info;
+
+ switch (switchdev_work->event) {
+ case SWITCHDEV_FDB_ADD_TO_DEVICE:
+ if (is_unicast_ether_addr(fdb_info->addr))
+ ethsw_port_fdb_add_uc(netdev_priv(dev), fdb_info->addr);
+ else
+ ethsw_port_fdb_add_mc(netdev_priv(dev), fdb_info->addr);
+ break;
+ case SWITCHDEV_FDB_DEL_TO_DEVICE:
+ if (is_unicast_ether_addr(fdb_info->addr))
+ ethsw_port_fdb_del_uc(netdev_priv(dev), fdb_info->addr);
+ else
+ ethsw_port_fdb_del_mc(netdev_priv(dev), fdb_info->addr);
+ break;
+ }
+
+ rtnl_unlock();
+ kfree(switchdev_work->fdb_info.addr);
+ kfree(switchdev_work);
+ dev_put(dev);
+}
+
+/* Called under rcu_read_lock() */
+static int port_switchdev_event(struct notifier_block *unused,
+ unsigned long event, void *ptr)
+{
+ struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
+ struct ethsw_switchdev_event_work *switchdev_work;
+ struct switchdev_notifier_fdb_info *fdb_info = ptr;
+
+ switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC);
+ if (!switchdev_work)
+ return NOTIFY_BAD;
+
+ INIT_WORK(&switchdev_work->work, ethsw_switchdev_event_work);
+ switchdev_work->dev = dev;
+ switchdev_work->event = event;
+
+ switch (event) {
+ case SWITCHDEV_FDB_ADD_TO_DEVICE:
+ case SWITCHDEV_FDB_DEL_TO_DEVICE:
+ memcpy(&switchdev_work->fdb_info, ptr,
+ sizeof(switchdev_work->fdb_info));
+ switchdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC);
+ if (!switchdev_work->fdb_info.addr)
+ goto err_addr_alloc;
+
+ ether_addr_copy((u8 *)switchdev_work->fdb_info.addr,
+ fdb_info->addr);
+
+ /* Take a reference on the device to avoid being freed. */
+ dev_hold(dev);
+ break;
+ default:
+ return NOTIFY_DONE;
+ }
+
+ queue_work(ethsw_owq, &switchdev_work->work);
+
+ return NOTIFY_DONE;
+
+err_addr_alloc:
+ kfree(switchdev_work);
+ return NOTIFY_BAD;
+}
+
+static struct notifier_block port_switchdev_nb = {
+ .notifier_call = port_switchdev_event,
+};
+
+static int ethsw_register_notifier(struct device *dev)
+{
+ int err;
+
+ err = register_netdevice_notifier(&port_nb);
+ if (err) {
+ dev_err(dev, "Failed to register netdev notifier\n");
+ return err;
+ }
+
+ err = register_switchdev_notifier(&port_switchdev_nb);
+ if (err) {
+ dev_err(dev, "Failed to register switchdev notifier\n");
+ goto err_switchdev_nb;
+ }
+
+ return 0;
+
+err_switchdev_nb:
+ unregister_netdevice_notifier(&port_nb);
+ return err;
+}
+
+static int ethsw_open(struct ethsw_core *ethsw)
+{
+ struct ethsw_port_priv *port_priv = NULL;
+ int i, err;
+
+ err = dpsw_enable(ethsw->mc_io, 0, ethsw->dpsw_handle);
+ if (err) {
+ dev_err(ethsw->dev, "dpsw_enable err %d\n", err);
+ return err;
+ }
+
+ for (i = 0; i < ethsw->sw_attr.num_ifs; i++) {
+ port_priv = ethsw->ports[i];
+ err = dev_open(port_priv->netdev);
+ if (err) {
+ netdev_err(port_priv->netdev, "dev_open err %d\n", err);
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+static int ethsw_stop(struct ethsw_core *ethsw)
+{
+ struct ethsw_port_priv *port_priv = NULL;
+ int i, err;
+
+ for (i = 0; i < ethsw->sw_attr.num_ifs; i++) {
+ port_priv = ethsw->ports[i];
+ dev_close(port_priv->netdev);
+ }
+
+ err = dpsw_disable(ethsw->mc_io, 0, ethsw->dpsw_handle);
+ if (err) {
+ dev_err(ethsw->dev, "dpsw_disable err %d\n", err);
+ return err;
+ }
+
+ return 0;
+}
+
+static int ethsw_init(struct fsl_mc_device *sw_dev)
+{
+ struct device *dev = &sw_dev->dev;
+ struct ethsw_core *ethsw = dev_get_drvdata(dev);
+ u16 version_major, version_minor, i;
+ struct dpsw_stp_cfg stp_cfg;
+ int err;
+
+ ethsw->dev_id = sw_dev->obj_desc.id;
+
+ err = dpsw_open(ethsw->mc_io, 0, ethsw->dev_id, &ethsw->dpsw_handle);
+ if (err) {
+ dev_err(dev, "dpsw_open err %d\n", err);
+ return err;
+ }
+
+ err = dpsw_get_attributes(ethsw->mc_io, 0, ethsw->dpsw_handle,
+ &ethsw->sw_attr);
+ if (err) {
+ dev_err(dev, "dpsw_get_attributes err %d\n", err);
+ goto err_close;
+ }
+
+ err = dpsw_get_api_version(ethsw->mc_io, 0,
+ &version_major,
+ &version_minor);
+ if (err) {
+ dev_err(dev, "dpsw_get_api_version err %d\n", err);
+ goto err_close;
+ }
+
+ /* Minimum supported DPSW version check */
+ if (version_major < DPSW_MIN_VER_MAJOR ||
+ (version_major == DPSW_MIN_VER_MAJOR &&
+ version_minor < DPSW_MIN_VER_MINOR)) {
+ dev_err(dev, "DPSW version %d:%d not supported. Use %d.%d or greater.\n",
+ version_major,
+ version_minor,
+ DPSW_MIN_VER_MAJOR, DPSW_MIN_VER_MINOR);
+ err = -ENOTSUPP;
+ goto err_close;
+ }
+
+ err = dpsw_reset(ethsw->mc_io, 0, ethsw->dpsw_handle);
+ if (err) {
+ dev_err(dev, "dpsw_reset err %d\n", err);
+ goto err_close;
+ }
+
+ err = dpsw_fdb_set_learning_mode(ethsw->mc_io, 0, ethsw->dpsw_handle, 0,
+ DPSW_FDB_LEARNING_MODE_HW);
+ if (err) {
+ dev_err(dev, "dpsw_fdb_set_learning_mode err %d\n", err);
+ goto err_close;
+ }
+
+ stp_cfg.vlan_id = DEFAULT_VLAN_ID;
+ stp_cfg.state = DPSW_STP_STATE_FORWARDING;
+
+ for (i = 0; i < ethsw->sw_attr.num_ifs; i++) {
+ err = dpsw_if_set_stp(ethsw->mc_io, 0, ethsw->dpsw_handle, i,
+ &stp_cfg);
+ if (err) {
+ dev_err(dev, "dpsw_if_set_stp err %d for port %d\n",
+ err, i);
+ goto err_close;
+ }
+
+ err = dpsw_if_set_broadcast(ethsw->mc_io, 0,
+ ethsw->dpsw_handle, i, 1);
+ if (err) {
+ dev_err(dev,
+ "dpsw_if_set_broadcast err %d for port %d\n",
+ err, i);
+ goto err_close;
+ }
+ }
+
+ ethsw_owq = alloc_ordered_workqueue("%s_ordered", WQ_MEM_RECLAIM,
+ "ethsw");
+ if (!ethsw_owq) {
+ err = -ENOMEM;
+ goto err_close;
+ }
+
+ err = ethsw_register_notifier(dev);
+ if (err)
+ goto err_destroy_ordered_workqueue;
+
+ return 0;
+
+err_destroy_ordered_workqueue:
+ destroy_workqueue(ethsw_owq);
+
+err_close:
+ dpsw_close(ethsw->mc_io, 0, ethsw->dpsw_handle);
+ return err;
+}
+
+static int ethsw_port_init(struct ethsw_port_priv *port_priv, u16 port)
+{
+ const char def_mcast[ETH_ALEN] = {0x01, 0x00, 0x5e, 0x00, 0x00, 0x01};
+ struct net_device *netdev = port_priv->netdev;
+ struct ethsw_core *ethsw = port_priv->ethsw_data;
+ struct dpsw_vlan_if_cfg vcfg;
+ int err;
+
+ /* Switch starts with all ports configured to VLAN 1. Need to
+ * remove this setting to allow configuration at bridge join
+ */
+ vcfg.num_ifs = 1;
+ vcfg.if_id[0] = port_priv->idx;
+
+ err = dpsw_vlan_remove_if_untagged(ethsw->mc_io, 0, ethsw->dpsw_handle,
+ DEFAULT_VLAN_ID, &vcfg);
+ if (err) {
+ netdev_err(netdev, "dpsw_vlan_remove_if_untagged err %d\n",
+ err);
+ return err;
+ }
+
+ err = ethsw_port_set_pvid(port_priv, 0);
+ if (err)
+ return err;
+
+ err = dpsw_vlan_remove_if(ethsw->mc_io, 0, ethsw->dpsw_handle,
+ DEFAULT_VLAN_ID, &vcfg);
+ if (err) {
+ netdev_err(netdev, "dpsw_vlan_remove_if err %d\n", err);
+ return err;
+ }
+
+ err = ethsw_port_fdb_add_mc(port_priv, def_mcast);
+
+ return err;
+}
+
+static void ethsw_unregister_notifier(struct device *dev)
+{
+ int err;
+
+ err = unregister_switchdev_notifier(&port_switchdev_nb);
+ if (err)
+ dev_err(dev,
+ "Failed to unregister switchdev notifier (%d)\n", err);
+
+ err = unregister_netdevice_notifier(&port_nb);
+ if (err)
+ dev_err(dev,
+ "Failed to unregister netdev notifier (%d)\n", err);
+}
+
+static void ethsw_takedown(struct fsl_mc_device *sw_dev)
+{
+ struct device *dev = &sw_dev->dev;
+ struct ethsw_core *ethsw = dev_get_drvdata(dev);
+ int err;
+
+ ethsw_unregister_notifier(dev);
+
+ err = dpsw_close(ethsw->mc_io, 0, ethsw->dpsw_handle);
+ if (err)
+ dev_warn(dev, "dpsw_close err %d\n", err);
+}
+
+static int ethsw_remove(struct fsl_mc_device *sw_dev)
+{
+ struct ethsw_port_priv *port_priv;
+ struct ethsw_core *ethsw;
+ struct device *dev;
+ int i;
+
+ dev = &sw_dev->dev;
+ ethsw = dev_get_drvdata(dev);
+
+ ethsw_teardown_irqs(sw_dev);
+
+ destroy_workqueue(ethsw_owq);
+
+ rtnl_lock();
+ ethsw_stop(ethsw);
+ rtnl_unlock();
+
+ for (i = 0; i < ethsw->sw_attr.num_ifs; i++) {
+ port_priv = ethsw->ports[i];
+ unregister_netdev(port_priv->netdev);
+ free_netdev(port_priv->netdev);
+ }
+ kfree(ethsw->ports);
+
+ ethsw_takedown(sw_dev);
+ fsl_mc_portal_free(ethsw->mc_io);
+
+ kfree(ethsw);
+
+ dev_set_drvdata(dev, NULL);
+
+ return 0;
+}
+
+static int ethsw_probe_port(struct ethsw_core *ethsw, u16 port_idx)
+{
+ struct ethsw_port_priv *port_priv;
+ struct device *dev = ethsw->dev;
+ struct net_device *port_netdev;
+ int err;
+
+ port_netdev = alloc_etherdev(sizeof(struct ethsw_port_priv));
+ if (!port_netdev) {
+ dev_err(dev, "alloc_etherdev error\n");
+ return -ENOMEM;
+ }
+
+ port_priv = netdev_priv(port_netdev);
+ port_priv->netdev = port_netdev;
+ port_priv->ethsw_data = ethsw;
+
+ port_priv->idx = port_idx;
+ port_priv->stp_state = BR_STATE_FORWARDING;
+
+ /* Flooding is implicitly enabled */
+ port_priv->flood = true;
+
+ SET_NETDEV_DEV(port_netdev, dev);
+ port_netdev->netdev_ops = &ethsw_port_ops;
+ port_netdev->ethtool_ops = &ethsw_port_ethtool_ops;
+ port_netdev->switchdev_ops = &ethsw_port_switchdev_ops;
+
+ /* Set MTU limits */
+ port_netdev->min_mtu = ETH_MIN_MTU;
+ port_netdev->max_mtu = ETHSW_MAX_FRAME_LENGTH;
+
+ err = register_netdev(port_netdev);
+ if (err < 0) {
+ dev_err(dev, "register_netdev error %d\n", err);
+ free_netdev(port_netdev);
+ return err;
+ }
+
+ ethsw->ports[port_idx] = port_priv;
+
+ return ethsw_port_init(port_priv, port_idx);
+}
+
+static int ethsw_probe(struct fsl_mc_device *sw_dev)
+{
+ struct device *dev = &sw_dev->dev;
+ struct ethsw_core *ethsw;
+ int i, err;
+
+ /* Allocate switch core*/
+ ethsw = kzalloc(sizeof(*ethsw), GFP_KERNEL);
+
+ if (!ethsw)
+ return -ENOMEM;
+
+ ethsw->dev = dev;
+ dev_set_drvdata(dev, ethsw);
+
+ err = fsl_mc_portal_allocate(sw_dev, 0, &ethsw->mc_io);
+ if (err) {
+ dev_err(dev, "fsl_mc_portal_allocate err %d\n", err);
+ goto err_free_drvdata;
+ }
+
+ err = ethsw_init(sw_dev);
+ if (err)
+ goto err_free_cmdport;
+
+ /* DEFAULT_VLAN_ID is implicitly configured on the switch */
+ ethsw->vlans[DEFAULT_VLAN_ID] = ETHSW_VLAN_MEMBER;
+
+ /* Learning is implicitly enabled */
+ ethsw->learning = true;
+
+ ethsw->ports = kcalloc(ethsw->sw_attr.num_ifs, sizeof(*ethsw->ports),
+ GFP_KERNEL);
+ if (!(ethsw->ports)) {
+ err = -ENOMEM;
+ goto err_takedown;
+ }
+
+ for (i = 0; i < ethsw->sw_attr.num_ifs; i++) {
+ err = ethsw_probe_port(ethsw, i);
+ if (err)
+ goto err_free_ports;
+ }
+
+ /* Switch starts up enabled */
+ rtnl_lock();
+ err = ethsw_open(ethsw);
+ rtnl_unlock();
+ if (err)
+ goto err_free_ports;
+
+ /* Setup IRQs */
+ err = ethsw_setup_irqs(sw_dev);
+ if (err)
+ goto err_stop;
+
+ dev_info(dev, "probed %d port switch\n", ethsw->sw_attr.num_ifs);
+ return 0;
+
+err_stop:
+ rtnl_lock();
+ ethsw_stop(ethsw);
+ rtnl_unlock();
+
+err_free_ports:
+ /* Cleanup registered ports only */
+ for (i--; i >= 0; i--) {
+ unregister_netdev(ethsw->ports[i]->netdev);
+ free_netdev(ethsw->ports[i]->netdev);
+ }
+ kfree(ethsw->ports);
+
+err_takedown:
+ ethsw_takedown(sw_dev);
+
+err_free_cmdport:
+ fsl_mc_portal_free(ethsw->mc_io);
+
+err_free_drvdata:
+ kfree(ethsw);
+ dev_set_drvdata(dev, NULL);
+
+ return err;
+}
+
+static const struct fsl_mc_device_id ethsw_match_id_table[] = {
+ {
+ .vendor = FSL_MC_VENDOR_FREESCALE,
+ .obj_type = "dpsw",
+ },
+ { .vendor = 0x0 }
+};
+MODULE_DEVICE_TABLE(fslmc, ethsw_match_id_table);
+
+static struct fsl_mc_driver eth_sw_drv = {
+ .driver = {
+ .name = KBUILD_MODNAME,
+ .owner = THIS_MODULE,
+ },
+ .probe = ethsw_probe,
+ .remove = ethsw_remove,
+ .match_id_table = ethsw_match_id_table
+};
+
+module_fsl_mc_driver(eth_sw_drv);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_DESCRIPTION("DPAA2 Ethernet Switch Driver");
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/ethsw/ethsw.h
@@ -0,0 +1,90 @@
+/* Copyright 2014-2017 Freescale Semiconductor Inc.
+ * Copyright 2017 NXP
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __ETHSW_H
+#define __ETHSW_H
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/rtnetlink.h>
+#include <linux/if_vlan.h>
+#include <uapi/linux/if_bridge.h>
+#include <net/switchdev.h>
+#include <linux/if_bridge.h>
+
+#include "dpsw.h"
+
+/* Number of IRQs supported */
+#define DPSW_IRQ_NUM 2
+
+#define ETHSW_VLAN_MEMBER 1
+#define ETHSW_VLAN_UNTAGGED 2
+#define ETHSW_VLAN_PVID 4
+#define ETHSW_VLAN_GLOBAL 8
+
+/* Maximum Frame Length supported by HW (currently 10k) */
+#define DPAA2_MFL (10 * 1024)
+#define ETHSW_MAX_FRAME_LENGTH (DPAA2_MFL - VLAN_ETH_HLEN - ETH_FCS_LEN)
+#define ETHSW_L2_MAX_FRM(mtu) ((mtu) + VLAN_ETH_HLEN + ETH_FCS_LEN)
+
+extern const struct ethtool_ops ethsw_port_ethtool_ops;
+
+struct ethsw_core;
+
+/* Per port private data */
+struct ethsw_port_priv {
+ struct net_device *netdev;
+ u16 idx;
+ struct ethsw_core *ethsw_data;
+ u8 link_state;
+ u8 stp_state;
+ bool flood;
+
+ u8 vlans[VLAN_VID_MASK + 1];
+ u16 pvid;
+};
+
+/* Switch data */
+struct ethsw_core {
+ struct device *dev;
+ struct fsl_mc_io *mc_io;
+ u16 dpsw_handle;
+ struct dpsw_attr sw_attr;
+ int dev_id;
+ struct ethsw_port_priv **ports;
+
+ u8 vlans[VLAN_VID_MASK + 1];
+ bool learning;
+};
+
+#endif /* __ETHSW_H */
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/evb/Kconfig
@@ -0,0 +1,7 @@
+config FSL_DPAA2_EVB
+ tristate "DPAA2 Edge Virtual Bridge"
+ depends on FSL_MC_BUS && FSL_DPAA2
+ select VLAN_8021Q
+ default y
+ ---help---
+ Prototype driver for DPAA2 Edge Virtual Bridge.
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/evb/Makefile
@@ -0,0 +1,10 @@
+
+obj-$(CONFIG_FSL_DPAA2_EVB) += dpaa2-evb.o
+
+dpaa2-evb-objs := evb.o dpdmux.o
+
+all:
+ make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
+
+clean:
+ make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/evb/dpdmux-cmd.h
@@ -0,0 +1,279 @@
+/* Copyright 2013-2016 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _FSL_DPDMUX_CMD_H
+#define _FSL_DPDMUX_CMD_H
+
+/* DPDMUX Version */
+#define DPDMUX_VER_MAJOR 6
+#define DPDMUX_VER_MINOR 1
+
+#define DPDMUX_CMD_BASE_VER 1
+#define DPDMUX_CMD_ID_OFFSET 4
+
+#define DPDMUX_CMD(id) (((id) << DPDMUX_CMD_ID_OFFSET) | DPDMUX_CMD_BASE_VER)
+
+/* Command IDs */
+#define DPDMUX_CMDID_CLOSE DPDMUX_CMD(0x800)
+#define DPDMUX_CMDID_OPEN DPDMUX_CMD(0x806)
+#define DPDMUX_CMDID_CREATE DPDMUX_CMD(0x906)
+#define DPDMUX_CMDID_DESTROY DPDMUX_CMD(0x986)
+#define DPDMUX_CMDID_GET_API_VERSION DPDMUX_CMD(0xa06)
+
+#define DPDMUX_CMDID_ENABLE DPDMUX_CMD(0x002)
+#define DPDMUX_CMDID_DISABLE DPDMUX_CMD(0x003)
+#define DPDMUX_CMDID_GET_ATTR DPDMUX_CMD(0x004)
+#define DPDMUX_CMDID_RESET DPDMUX_CMD(0x005)
+#define DPDMUX_CMDID_IS_ENABLED DPDMUX_CMD(0x006)
+
+#define DPDMUX_CMDID_SET_IRQ_ENABLE DPDMUX_CMD(0x012)
+#define DPDMUX_CMDID_GET_IRQ_ENABLE DPDMUX_CMD(0x013)
+#define DPDMUX_CMDID_SET_IRQ_MASK DPDMUX_CMD(0x014)
+#define DPDMUX_CMDID_GET_IRQ_MASK DPDMUX_CMD(0x015)
+#define DPDMUX_CMDID_GET_IRQ_STATUS DPDMUX_CMD(0x016)
+#define DPDMUX_CMDID_CLEAR_IRQ_STATUS DPDMUX_CMD(0x017)
+
+#define DPDMUX_CMDID_SET_MAX_FRAME_LENGTH DPDMUX_CMD(0x0a1)
+
+#define DPDMUX_CMDID_UL_RESET_COUNTERS DPDMUX_CMD(0x0a3)
+
+#define DPDMUX_CMDID_IF_SET_ACCEPTED_FRAMES DPDMUX_CMD(0x0a7)
+#define DPDMUX_CMDID_IF_GET_ATTR DPDMUX_CMD(0x0a8)
+#define DPDMUX_CMDID_IF_ENABLE DPDMUX_CMD(0x0a9)
+#define DPDMUX_CMDID_IF_DISABLE DPDMUX_CMD(0x0aa)
+
+#define DPDMUX_CMDID_IF_ADD_L2_RULE DPDMUX_CMD(0x0b0)
+#define DPDMUX_CMDID_IF_REMOVE_L2_RULE DPDMUX_CMD(0x0b1)
+#define DPDMUX_CMDID_IF_GET_COUNTER DPDMUX_CMD(0x0b2)
+#define DPDMUX_CMDID_IF_SET_LINK_CFG DPDMUX_CMD(0x0b3)
+#define DPDMUX_CMDID_IF_GET_LINK_STATE DPDMUX_CMD(0x0b4)
+
+#define DPDMUX_CMDID_SET_CUSTOM_KEY DPDMUX_CMD(0x0b5)
+#define DPDMUX_CMDID_ADD_CUSTOM_CLS_ENTRY DPDMUX_CMD(0x0b6)
+#define DPDMUX_CMDID_REMOVE_CUSTOM_CLS_ENTRY DPDMUX_CMD(0x0b7)
+
+#define DPDMUX_MASK(field) \
+ GENMASK(DPDMUX_##field##_SHIFT + DPDMUX_##field##_SIZE - 1, \
+ DPDMUX_##field##_SHIFT)
+#define dpdmux_set_field(var, field, val) \
+ ((var) |= (((val) << DPDMUX_##field##_SHIFT) & DPDMUX_MASK(field)))
+#define dpdmux_get_field(var, field) \
+ (((var) & DPDMUX_MASK(field)) >> DPDMUX_##field##_SHIFT)
+
+struct dpdmux_cmd_open {
+ u32 dpdmux_id;
+};
+
+struct dpdmux_cmd_create {
+ u8 method;
+ u8 manip;
+ u16 num_ifs;
+ u32 pad;
+
+ u16 adv_max_dmat_entries;
+ u16 adv_max_mc_groups;
+ u16 adv_max_vlan_ids;
+ u16 pad1;
+
+ u64 options;
+};
+
+struct dpdmux_cmd_destroy {
+ u32 dpdmux_id;
+};
+
+#define DPDMUX_ENABLE_SHIFT 0
+#define DPDMUX_ENABLE_SIZE 1
+
+struct dpdmux_rsp_is_enabled {
+ u8 en;
+};
+
+struct dpdmux_cmd_set_irq_enable {
+ u8 enable;
+ u8 pad[3];
+ u8 irq_index;
+};
+
+struct dpdmux_cmd_get_irq_enable {
+ u32 pad;
+ u8 irq_index;
+};
+
+struct dpdmux_rsp_get_irq_enable {
+ u8 enable;
+};
+
+struct dpdmux_cmd_set_irq_mask {
+ u32 mask;
+ u8 irq_index;
+};
+
+struct dpdmux_cmd_get_irq_mask {
+ u32 pad;
+ u8 irq_index;
+};
+
+struct dpdmux_rsp_get_irq_mask {
+ u32 mask;
+};
+
+struct dpdmux_cmd_get_irq_status {
+ u32 status;
+ u8 irq_index;
+};
+
+struct dpdmux_rsp_get_irq_status {
+ u32 status;
+};
+
+struct dpdmux_cmd_clear_irq_status {
+ u32 status;
+ u8 irq_index;
+};
+
+struct dpdmux_rsp_get_attr {
+ u8 method;
+ u8 manip;
+ u16 num_ifs;
+ u16 mem_size;
+ u16 pad;
+
+ u64 pad1;
+
+ u32 id;
+ u32 pad2;
+
+ u64 options;
+};
+
+struct dpdmux_cmd_set_max_frame_length {
+ u16 max_frame_length;
+};
+
+#define DPDMUX_ACCEPTED_FRAMES_TYPE_SHIFT 0
+#define DPDMUX_ACCEPTED_FRAMES_TYPE_SIZE 4
+#define DPDMUX_UNACCEPTED_FRAMES_ACTION_SHIFT 4
+#define DPDMUX_UNACCEPTED_FRAMES_ACTION_SIZE 4
+
+struct dpdmux_cmd_if_set_accepted_frames {
+ u16 if_id;
+ u8 frames_options;
+};
+
+struct dpdmux_cmd_if {
+ u16 if_id;
+};
+
+struct dpdmux_rsp_if_get_attr {
+ u8 pad[3];
+ u8 enabled;
+ u8 pad1[3];
+ u8 accepted_frames_type;
+ u32 rate;
+};
+
+struct dpdmux_cmd_if_l2_rule {
+ u16 if_id;
+ u8 mac_addr5;
+ u8 mac_addr4;
+ u8 mac_addr3;
+ u8 mac_addr2;
+ u8 mac_addr1;
+ u8 mac_addr0;
+
+ u32 pad;
+ u16 vlan_id;
+};
+
+struct dpdmux_cmd_if_get_counter {
+ u16 if_id;
+ u8 counter_type;
+};
+
+struct dpdmux_rsp_if_get_counter {
+ u64 pad;
+ u64 counter;
+};
+
+struct dpdmux_cmd_if_set_link_cfg {
+ u16 if_id;
+ u16 pad[3];
+
+ u32 rate;
+ u32 pad1;
+
+ u64 options;
+};
+
+struct dpdmux_cmd_if_get_link_state {
+ u16 if_id;
+};
+
+struct dpdmux_rsp_if_get_link_state {
+ u32 pad;
+ u8 up;
+ u8 pad1[3];
+
+ u32 rate;
+ u32 pad2;
+
+ u64 options;
+};
+
+struct dpdmux_rsp_get_api_version {
+ u16 major;
+ u16 minor;
+};
+
+struct dpdmux_set_custom_key {
+ u64 pad[6];
+ u64 key_cfg_iova;
+};
+
+struct dpdmux_cmd_add_custom_cls_entry {
+ u8 pad[3];
+ u8 key_size;
+ u16 pad1;
+ u16 dest_if;
+ u64 key_iova;
+ u64 mask_iova;
+};
+
+struct dpdmux_cmd_remove_custom_cls_entry {
+ u8 pad[3];
+ u8 key_size;
+ u32 pad1;
+ u64 key_iova;
+ u64 mask_iova;
+};
+
+#endif /* _FSL_DPDMUX_CMD_H */
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/evb/dpdmux.c
@@ -0,0 +1,1111 @@
+/* Copyright 2013-2016 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <linux/fsl/mc.h>
+#include "dpdmux.h"
+#include "dpdmux-cmd.h"
+
+/**
+ * dpdmux_open() - Open a control session for the specified object
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @dpdmux_id: DPDMUX unique ID
+ * @token: Returned token; use in subsequent API calls
+ *
+ * This function can be used to open a control session for an
+ * already created object; an object may have been declared in
+ * the DPL or by calling the dpdmux_create() function.
+ * This function returns a unique authentication token,
+ * associated with the specific object ID and the specific MC
+ * portal; this token must be used in all subsequent commands for
+ * this specific object.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmux_open(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ int dpdmux_id,
+ u16 *token)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpdmux_cmd_open *cmd_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_OPEN,
+ cmd_flags,
+ 0);
+ cmd_params = (struct dpdmux_cmd_open *)cmd.params;
+ cmd_params->dpdmux_id = cpu_to_le32(dpdmux_id);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ *token = mc_cmd_hdr_read_token(&cmd);
+
+ return 0;
+}
+
+/**
+ * dpdmux_close() - Close the control session of the object
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPDMUX object
+ *
+ * After this function is called, no further operations are
+ * allowed on the object without opening a new control session.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmux_close(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_CLOSE,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmux_create() - Create the DPDMUX object
+ * @mc_io: Pointer to MC portal's I/O object
+ * @dprc_token: Parent container token; '0' for default container
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @cfg: Configuration structure
+ * @obj_id: returned object id
+ *
+ * Create the DPDMUX object, allocate required resources and
+ * perform required initialization.
+ *
+ * The object can be created either by declaring it in the
+ * DPL file, or by calling this function.
+ *
+ * The function accepts an authentication token of a parent
+ * container that this object should be assigned to. The token
+ * can be '0' so the object will be assigned to the default container.
+ * The newly created object can be opened with the returned
+ * object id and using the container's associated tokens and MC portals.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmux_create(struct fsl_mc_io *mc_io,
+ u16 dprc_token,
+ u32 cmd_flags,
+ const struct dpdmux_cfg *cfg,
+ u32 *obj_id)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpdmux_cmd_create *cmd_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_CREATE,
+ cmd_flags,
+ dprc_token);
+ cmd_params = (struct dpdmux_cmd_create *)cmd.params;
+ cmd_params->method = cfg->method;
+ cmd_params->manip = cfg->manip;
+ cmd_params->num_ifs = cpu_to_le16(cfg->num_ifs);
+ cmd_params->adv_max_dmat_entries =
+ cpu_to_le16(cfg->adv.max_dmat_entries);
+ cmd_params->adv_max_mc_groups = cpu_to_le16(cfg->adv.max_mc_groups);
+ cmd_params->adv_max_vlan_ids = cpu_to_le16(cfg->adv.max_vlan_ids);
+ cmd_params->options = cpu_to_le64(cfg->adv.options);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ *obj_id = mc_cmd_hdr_read_token(&cmd);
+
+ return 0;
+}
+
+/**
+ * dpdmux_destroy() - Destroy the DPDMUX object and release all its resources.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @dprc_token: Parent container token; '0' for default container
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @object_id: The object id; it must be a valid id within the container that
+ * created this object;
+ *
+ * The function accepts the authentication token of the parent container that
+ * created the object (not the one that currently owns the object). The object
+ * is searched within parent using the provided 'object_id'.
+ * All tokens to the object must be closed before calling destroy.
+ *
+ * Return: '0' on Success; error code otherwise.
+ */
+int dpdmux_destroy(struct fsl_mc_io *mc_io,
+ u16 dprc_token,
+ u32 cmd_flags,
+ u32 object_id)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpdmux_cmd_destroy *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_DESTROY,
+ cmd_flags,
+ dprc_token);
+ cmd_params = (struct dpdmux_cmd_destroy *)cmd.params;
+ cmd_params->dpdmux_id = cpu_to_le32(object_id);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmux_enable() - Enable DPDMUX functionality
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPDMUX object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmux_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_ENABLE,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmux_disable() - Disable DPDMUX functionality
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPDMUX object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmux_disable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_DISABLE,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmux_is_enabled() - Check if the DPDMUX is enabled.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPDMUX object
+ * @en: Returns '1' if object is enabled; '0' otherwise
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmux_is_enabled(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int *en)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpdmux_rsp_is_enabled *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_IS_ENABLED,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpdmux_rsp_is_enabled *)cmd.params;
+ *en = dpdmux_get_field(rsp_params->en, ENABLE);
+
+ return 0;
+}
+
+/**
+ * dpdmux_reset() - Reset the DPDMUX, returns the object to initial state.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPDMUX object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmux_reset(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_RESET,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmux_set_irq_enable() - Set overall interrupt state.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPDMUX object
+ * @irq_index: The interrupt index to configure
+ * @en: Interrupt state - enable = 1, disable = 0
+ *
+ * Allows GPP software to control when interrupts are generated.
+ * Each interrupt can have up to 32 causes. The enable/disable control's the
+ * overall interrupt state. if the interrupt is disabled no causes will cause
+ * an interrupt.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmux_set_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 en)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpdmux_cmd_set_irq_enable *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_SET_IRQ_ENABLE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpdmux_cmd_set_irq_enable *)cmd.params;
+ cmd_params->enable = en;
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmux_get_irq_enable() - Get overall interrupt state.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPDMUX object
+ * @irq_index: The interrupt index to configure
+ * @en: Returned interrupt state - enable = 1, disable = 0
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmux_get_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 *en)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpdmux_cmd_get_irq_enable *cmd_params;
+ struct dpdmux_rsp_get_irq_enable *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_GET_IRQ_ENABLE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpdmux_cmd_get_irq_enable *)cmd.params;
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpdmux_rsp_get_irq_enable *)cmd.params;
+ *en = rsp_params->enable;
+
+ return 0;
+}
+
+/**
+ * dpdmux_set_irq_mask() - Set interrupt mask.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPDMUX object
+ * @irq_index: The interrupt index to configure
+ * @mask: event mask to trigger interrupt;
+ * each bit:
+ * 0 = ignore event
+ * 1 = consider event for asserting IRQ
+ *
+ * Every interrupt can have up to 32 causes and the interrupt model supports
+ * masking/unmasking each cause independently
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmux_set_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 mask)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpdmux_cmd_set_irq_mask *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_SET_IRQ_MASK,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpdmux_cmd_set_irq_mask *)cmd.params;
+ cmd_params->mask = cpu_to_le32(mask);
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmux_get_irq_mask() - Get interrupt mask.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPDMUX object
+ * @irq_index: The interrupt index to configure
+ * @mask: Returned event mask to trigger interrupt
+ *
+ * Every interrupt can have up to 32 causes and the interrupt model supports
+ * masking/unmasking each cause independently
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmux_get_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *mask)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpdmux_cmd_get_irq_mask *cmd_params;
+ struct dpdmux_rsp_get_irq_mask *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_GET_IRQ_MASK,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpdmux_cmd_get_irq_mask *)cmd.params;
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpdmux_rsp_get_irq_mask *)cmd.params;
+ *mask = le32_to_cpu(rsp_params->mask);
+
+ return 0;
+}
+
+/**
+ * dpdmux_get_irq_status() - Get the current status of any pending interrupts.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPDMUX object
+ * @irq_index: The interrupt index to configure
+ * @status: Returned interrupts status - one bit per cause:
+ * 0 = no interrupt pending
+ * 1 = interrupt pending
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmux_get_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *status)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpdmux_cmd_get_irq_status *cmd_params;
+ struct dpdmux_rsp_get_irq_status *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_GET_IRQ_STATUS,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpdmux_cmd_get_irq_status *)cmd.params;
+ cmd_params->status = cpu_to_le32(*status);
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpdmux_rsp_get_irq_status *)cmd.params;
+ *status = le32_to_cpu(rsp_params->status);
+
+ return 0;
+}
+
+/**
+ * dpdmux_clear_irq_status() - Clear a pending interrupt's status
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPDMUX object
+ * @irq_index: The interrupt index to configure
+ * @status: bits to clear (W1C) - one bit per cause:
+ * 0 = don't change
+ * 1 = clear status bit
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmux_clear_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 status)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpdmux_cmd_clear_irq_status *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_CLEAR_IRQ_STATUS,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpdmux_cmd_clear_irq_status *)cmd.params;
+ cmd_params->status = cpu_to_le32(status);
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmux_get_attributes() - Retrieve DPDMUX attributes
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPDMUX object
+ * @attr: Returned object's attributes
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmux_get_attributes(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpdmux_attr *attr)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpdmux_rsp_get_attr *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_GET_ATTR,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpdmux_rsp_get_attr *)cmd.params;
+ attr->id = le32_to_cpu(rsp_params->id);
+ attr->options = le64_to_cpu(rsp_params->options);
+ attr->method = rsp_params->method;
+ attr->manip = rsp_params->manip;
+ attr->num_ifs = le16_to_cpu(rsp_params->num_ifs);
+ attr->mem_size = le16_to_cpu(rsp_params->mem_size);
+
+ return 0;
+}
+
+/**
+ * dpdmux_if_enable() - Enable Interface
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPDMUX object
+ * @if_id: Interface Identifier
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpdmux_if_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id)
+{
+ struct dpdmux_cmd_if *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_IF_ENABLE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpdmux_cmd_if *)cmd.params;
+ cmd_params->if_id = cpu_to_le16(if_id);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmux_if_disable() - Disable Interface
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPDMUX object
+ * @if_id: Interface Identifier
+ *
+ * Return: Completion status. '0' on Success; Error code otherwise.
+ */
+int dpdmux_if_disable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id)
+{
+ struct dpdmux_cmd_if *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_IF_DISABLE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpdmux_cmd_if *)cmd.params;
+ cmd_params->if_id = cpu_to_le16(if_id);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmux_set_max_frame_length() - Set the maximum frame length in DPDMUX
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPDMUX object
+ * @max_frame_length: The required maximum frame length
+ *
+ * Update the maximum frame length on all DMUX interfaces.
+ * In case of VEPA, the maximum frame length on all dmux interfaces
+ * will be updated with the minimum value of the mfls of the connected
+ * dpnis and the actual value of dmux mfl.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmux_set_max_frame_length(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 max_frame_length)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpdmux_cmd_set_max_frame_length *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_SET_MAX_FRAME_LENGTH,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpdmux_cmd_set_max_frame_length *)cmd.params;
+ cmd_params->max_frame_length = cpu_to_le16(max_frame_length);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmux_ul_reset_counters() - Function resets the uplink counter
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPDMUX object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmux_ul_reset_counters(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_UL_RESET_COUNTERS,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmux_if_set_accepted_frames() - Set the accepted frame types
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPDMUX object
+ * @if_id: Interface ID (0 for uplink, or 1-num_ifs);
+ * @cfg: Frame types configuration
+ *
+ * if 'DPDMUX_ADMIT_ONLY_VLAN_TAGGED' is set - untagged frames or
+ * priority-tagged frames are discarded.
+ * if 'DPDMUX_ADMIT_ONLY_UNTAGGED' is set - untagged frames or
+ * priority-tagged frames are accepted.
+ * if 'DPDMUX_ADMIT_ALL' is set (default mode) - all VLAN tagged,
+ * untagged and priority-tagged frame are accepted;
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmux_if_set_accepted_frames(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ const struct dpdmux_accepted_frames *cfg)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpdmux_cmd_if_set_accepted_frames *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_IF_SET_ACCEPTED_FRAMES,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpdmux_cmd_if_set_accepted_frames *)cmd.params;
+ cmd_params->if_id = cpu_to_le16(if_id);
+ dpdmux_set_field(cmd_params->frames_options, ACCEPTED_FRAMES_TYPE,
+ cfg->type);
+ dpdmux_set_field(cmd_params->frames_options, UNACCEPTED_FRAMES_ACTION,
+ cfg->unaccept_act);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmux_if_get_attributes() - Obtain DPDMUX interface attributes
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPDMUX object
+ * @if_id: Interface ID (0 for uplink, or 1-num_ifs);
+ * @attr: Interface attributes
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmux_if_get_attributes(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ struct dpdmux_if_attr *attr)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpdmux_cmd_if *cmd_params;
+ struct dpdmux_rsp_if_get_attr *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_IF_GET_ATTR,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpdmux_cmd_if *)cmd.params;
+ cmd_params->if_id = cpu_to_le16(if_id);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpdmux_rsp_if_get_attr *)cmd.params;
+ attr->rate = le32_to_cpu(rsp_params->rate);
+ attr->enabled = dpdmux_get_field(rsp_params->enabled, ENABLE);
+ attr->accept_frame_type =
+ dpdmux_get_field(rsp_params->accepted_frames_type,
+ ACCEPTED_FRAMES_TYPE);
+
+ return 0;
+}
+
+/**
+ * dpdmux_if_remove_l2_rule() - Remove L2 rule from DPDMUX table
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPDMUX object
+ * @if_id: Destination interface ID
+ * @rule: L2 rule
+ *
+ * Function removes a L2 rule from DPDMUX table
+ * or adds an interface to an existing multicast address
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmux_if_remove_l2_rule(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ const struct dpdmux_l2_rule *rule)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpdmux_cmd_if_l2_rule *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_IF_REMOVE_L2_RULE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpdmux_cmd_if_l2_rule *)cmd.params;
+ cmd_params->if_id = cpu_to_le16(if_id);
+ cmd_params->vlan_id = cpu_to_le16(rule->vlan_id);
+ cmd_params->mac_addr5 = rule->mac_addr[5];
+ cmd_params->mac_addr4 = rule->mac_addr[4];
+ cmd_params->mac_addr3 = rule->mac_addr[3];
+ cmd_params->mac_addr2 = rule->mac_addr[2];
+ cmd_params->mac_addr1 = rule->mac_addr[1];
+ cmd_params->mac_addr0 = rule->mac_addr[0];
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmux_if_add_l2_rule() - Add L2 rule into DPDMUX table
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPDMUX object
+ * @if_id: Destination interface ID
+ * @rule: L2 rule
+ *
+ * Function adds a L2 rule into DPDMUX table
+ * or adds an interface to an existing multicast address
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmux_if_add_l2_rule(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ const struct dpdmux_l2_rule *rule)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpdmux_cmd_if_l2_rule *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_IF_ADD_L2_RULE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpdmux_cmd_if_l2_rule *)cmd.params;
+ cmd_params->if_id = cpu_to_le16(if_id);
+ cmd_params->vlan_id = cpu_to_le16(rule->vlan_id);
+ cmd_params->mac_addr5 = rule->mac_addr[5];
+ cmd_params->mac_addr4 = rule->mac_addr[4];
+ cmd_params->mac_addr3 = rule->mac_addr[3];
+ cmd_params->mac_addr2 = rule->mac_addr[2];
+ cmd_params->mac_addr1 = rule->mac_addr[1];
+ cmd_params->mac_addr0 = rule->mac_addr[0];
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmux_if_get_counter() - Functions obtains specific counter of an interface
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPDMUX object
+ * @if_id: Interface Id
+ * @counter_type: counter type
+ * @counter: Returned specific counter information
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmux_if_get_counter(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ enum dpdmux_counter_type counter_type,
+ u64 *counter)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpdmux_cmd_if_get_counter *cmd_params;
+ struct dpdmux_rsp_if_get_counter *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_IF_GET_COUNTER,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpdmux_cmd_if_get_counter *)cmd.params;
+ cmd_params->if_id = cpu_to_le16(if_id);
+ cmd_params->counter_type = counter_type;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpdmux_rsp_if_get_counter *)cmd.params;
+ *counter = le64_to_cpu(rsp_params->counter);
+
+ return 0;
+}
+
+/**
+ * dpdmux_if_set_link_cfg() - set the link configuration.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @if_id: interface id
+ * @cfg: Link configuration
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmux_if_set_link_cfg(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ struct dpdmux_link_cfg *cfg)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpdmux_cmd_if_set_link_cfg *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_IF_SET_LINK_CFG,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpdmux_cmd_if_set_link_cfg *)cmd.params;
+ cmd_params->if_id = cpu_to_le16(if_id);
+ cmd_params->rate = cpu_to_le32(cfg->rate);
+ cmd_params->options = cpu_to_le64(cfg->options);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmux_if_get_link_state - Return the link state
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @if_id: interface id
+ * @state: link state
+ *
+ * @returns '0' on Success; Error code otherwise.
+ */
+int dpdmux_if_get_link_state(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ struct dpdmux_link_state *state)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpdmux_cmd_if_get_link_state *cmd_params;
+ struct dpdmux_rsp_if_get_link_state *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_IF_GET_LINK_STATE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpdmux_cmd_if_get_link_state *)cmd.params;
+ cmd_params->if_id = cpu_to_le16(if_id);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpdmux_rsp_if_get_link_state *)cmd.params;
+ state->rate = le32_to_cpu(rsp_params->rate);
+ state->options = le64_to_cpu(rsp_params->options);
+ state->up = dpdmux_get_field(rsp_params->up, ENABLE);
+
+ return 0;
+}
+
+/**
+ * dpdmux_set_custom_key - Set a custom classification key.
+ *
+ * This API is only available for DPDMUX instance created with
+ * DPDMUX_METHOD_CUSTOM. This API must be called before populating the
+ * classification table using dpdmux_add_custom_cls_entry.
+ *
+ * Calls to dpdmux_set_custom_key remove all existing classification entries
+ * that may have been added previously using dpdmux_add_custom_cls_entry.
+ *
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @if_id: interface id
+ * @key_cfg_iova: DMA address of a configuration structure set up using
+ * dpkg_prepare_key_cfg. Maximum key size is 24 bytes.
+ *
+ * @returns '0' on Success; Error code otherwise.
+ */
+int dpdmux_set_custom_key(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u64 key_cfg_iova)
+{
+ struct dpdmux_set_custom_key *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_SET_CUSTOM_KEY,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpdmux_set_custom_key *)cmd.params;
+ cmd_params->key_cfg_iova = cpu_to_le64(key_cfg_iova);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmux_add_custom_cls_entry - Adds a custom classification entry.
+ *
+ * This API is only available for DPDMUX instances created with
+ * DPDMUX_METHOD_CUSTOM. Before calling this function a classification key
+ * composition rule must be set up using dpdmux_set_custom_key.
+ *
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @rule: Classification rule to insert. Rules cannot be duplicated, if a
+ * matching rule already exists, the action will be replaced.
+ * @action: Action to perform for matching traffic.
+ *
+ * @returns '0' on Success; Error code otherwise.
+ */
+int dpdmux_add_custom_cls_entry(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpdmux_rule_cfg *rule,
+ struct dpdmux_cls_action *action)
+{
+ struct dpdmux_cmd_add_custom_cls_entry *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_ADD_CUSTOM_CLS_ENTRY,
+ cmd_flags,
+ token);
+
+ cmd_params = (struct dpdmux_cmd_add_custom_cls_entry *)cmd.params;
+ cmd_params->key_size = rule->key_size;
+ cmd_params->dest_if = cpu_to_le16(action->dest_if);
+ cmd_params->key_iova = cpu_to_le64(rule->key_iova);
+ cmd_params->mask_iova = cpu_to_le64(rule->mask_iova);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmux_remove_custom_cls_entry - Removes a custom classification entry.
+ *
+ * This API is only available for DPDMUX instances created with
+ * DPDMUX_METHOD_CUSTOM. The API can be used to remove classification
+ * entries previously inserted using dpdmux_add_custom_cls_entry.
+ *
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSW object
+ * @rule: Classification rule to remove
+ *
+ * @returns '0' on Success; Error code otherwise.
+ */
+int dpdmux_remove_custom_cls_entry(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpdmux_rule_cfg *rule)
+{
+ struct dpdmux_cmd_remove_custom_cls_entry *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_REMOVE_CUSTOM_CLS_ENTRY,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpdmux_cmd_remove_custom_cls_entry *)cmd.params;
+ cmd_params->key_size = rule->key_size;
+ cmd_params->key_iova = cpu_to_le64(rule->key_iova);
+ cmd_params->mask_iova = cpu_to_le64(rule->mask_iova);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmux_get_api_version() - Get Data Path Demux API version
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @major_ver: Major version of data path demux API
+ * @minor_ver: Minor version of data path demux API
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmux_get_api_version(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 *major_ver,
+ u16 *minor_ver)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpdmux_rsp_get_api_version *rsp_params;
+ int err;
+
+ cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_GET_API_VERSION,
+ cmd_flags,
+ 0);
+
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ rsp_params = (struct dpdmux_rsp_get_api_version *)cmd.params;
+ *major_ver = le16_to_cpu(rsp_params->major);
+ *minor_ver = le16_to_cpu(rsp_params->minor);
+
+ return 0;
+}
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/evb/dpdmux.h
@@ -0,0 +1,453 @@
+/* Copyright 2013-2015 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __FSL_DPDMUX_H
+#define __FSL_DPDMUX_H
+
+struct fsl_mc_io;
+
+/* Data Path Demux API
+ * Contains API for handling DPDMUX topology and functionality
+ */
+
+int dpdmux_open(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ int dpdmux_id,
+ u16 *token);
+
+int dpdmux_close(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+/**
+ * DPDMUX general options
+ */
+
+/**
+ * Enable bridging between internal interfaces
+ */
+#define DPDMUX_OPT_BRIDGE_EN 0x0000000000000002ULL
+
+/**
+ * Mask support for classification
+ */
+#define DPDMUX_OPT_CLS_MASK_SUPPORT 0x0000000000000020ULL
+
+#define DPDMUX_IRQ_INDEX_IF 0x0000
+#define DPDMUX_IRQ_INDEX 0x0001
+
+/**
+ * IRQ event - Indicates that the link state changed
+ */
+#define DPDMUX_IRQ_EVENT_LINK_CHANGED 0x0001
+
+/**
+ * enum dpdmux_manip - DPDMUX manipulation operations
+ * @DPDMUX_MANIP_NONE: No manipulation on frames
+ * @DPDMUX_MANIP_ADD_REMOVE_S_VLAN: Add S-VLAN on egress, remove it on ingress
+ */
+enum dpdmux_manip {
+ DPDMUX_MANIP_NONE = 0x0,
+ DPDMUX_MANIP_ADD_REMOVE_S_VLAN = 0x1
+};
+
+/**
+ * enum dpdmux_method - DPDMUX method options
+ * @DPDMUX_METHOD_NONE: no DPDMUX method
+ * @DPDMUX_METHOD_C_VLAN_MAC: DPDMUX based on C-VLAN and MAC address
+ * @DPDMUX_METHOD_MAC: DPDMUX based on MAC address
+ * @DPDMUX_METHOD_C_VLAN: DPDMUX based on C-VLAN
+ * @DPDMUX_METHOD_S_VLAN: DPDMUX based on S-VLAN
+ */
+enum dpdmux_method {
+ DPDMUX_METHOD_NONE = 0x0,
+ DPDMUX_METHOD_C_VLAN_MAC = 0x1,
+ DPDMUX_METHOD_MAC = 0x2,
+ DPDMUX_METHOD_C_VLAN = 0x3,
+ DPDMUX_METHOD_S_VLAN = 0x4,
+ DPDMUX_METHOD_CUSTOM = 0x5
+};
+
+/**
+ * struct dpdmux_cfg - DPDMUX configuration parameters
+ * @method: Defines the operation method for the DPDMUX address table
+ * @manip: Required manipulation operation
+ * @num_ifs: Number of interfaces (excluding the uplink interface)
+ * @adv: Advanced parameters; default is all zeros;
+ * use this structure to change default settings
+ */
+struct dpdmux_cfg {
+ enum dpdmux_method method;
+ enum dpdmux_manip manip;
+ u16 num_ifs;
+ /**
+ * struct adv - Advanced parameters
+ * @options: DPDMUX options - combination of 'DPDMUX_OPT_<X>' flags
+ * @max_dmat_entries: Maximum entries in DPDMUX address table
+ * 0 - indicates default: 64 entries per interface.
+ * @max_mc_groups: Number of multicast groups in DPDMUX table
+ * 0 - indicates default: 32 multicast groups
+ * @max_vlan_ids: max vlan ids allowed in the system -
+ * relevant only case of working in mac+vlan method.
+ * 0 - indicates default 16 vlan ids.
+ */
+ struct {
+ u64 options;
+ u16 max_dmat_entries;
+ u16 max_mc_groups;
+ u16 max_vlan_ids;
+ } adv;
+};
+
+int dpdmux_create(struct fsl_mc_io *mc_io,
+ u16 dprc_token,
+ u32 cmd_flags,
+ const struct dpdmux_cfg *cfg,
+ u32 *obj_id);
+
+int dpdmux_destroy(struct fsl_mc_io *mc_io,
+ u16 dprc_token,
+ u32 cmd_flags,
+ u32 object_id);
+
+int dpdmux_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+int dpdmux_disable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+int dpdmux_is_enabled(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int *en);
+
+int dpdmux_reset(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+int dpdmux_set_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 en);
+
+int dpdmux_get_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 *en);
+
+int dpdmux_set_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 mask);
+
+int dpdmux_get_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *mask);
+
+int dpdmux_get_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *status);
+
+int dpdmux_clear_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 status);
+
+/**
+ * struct dpdmux_attr - Structure representing DPDMUX attributes
+ * @id: DPDMUX object ID
+ * @options: Configuration options (bitmap)
+ * @method: DPDMUX address table method
+ * @manip: DPDMUX manipulation type
+ * @num_ifs: Number of interfaces (excluding the uplink interface)
+ * @mem_size: DPDMUX frame storage memory size
+ */
+struct dpdmux_attr {
+ int id;
+ u64 options;
+ enum dpdmux_method method;
+ enum dpdmux_manip manip;
+ u16 num_ifs;
+ u16 mem_size;
+};
+
+int dpdmux_get_attributes(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpdmux_attr *attr);
+
+int dpdmux_set_max_frame_length(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 max_frame_length);
+
+/**
+ * enum dpdmux_counter_type - Counter types
+ * @DPDMUX_CNT_ING_FRAME: Counts ingress frames
+ * @DPDMUX_CNT_ING_BYTE: Counts ingress bytes
+ * @DPDMUX_CNT_ING_FLTR_FRAME: Counts filtered ingress frames
+ * @DPDMUX_CNT_ING_FRAME_DISCARD: Counts discarded ingress frames
+ * @DPDMUX_CNT_ING_MCAST_FRAME: Counts ingress multicast frames
+ * @DPDMUX_CNT_ING_MCAST_BYTE: Counts ingress multicast bytes
+ * @DPDMUX_CNT_ING_BCAST_FRAME: Counts ingress broadcast frames
+ * @DPDMUX_CNT_ING_BCAST_BYTES: Counts ingress broadcast bytes
+ * @DPDMUX_CNT_EGR_FRAME: Counts egress frames
+ * @DPDMUX_CNT_EGR_BYTE: Counts egress bytes
+ * @DPDMUX_CNT_EGR_FRAME_DISCARD: Counts discarded egress frames
+ */
+enum dpdmux_counter_type {
+ DPDMUX_CNT_ING_FRAME = 0x0,
+ DPDMUX_CNT_ING_BYTE = 0x1,
+ DPDMUX_CNT_ING_FLTR_FRAME = 0x2,
+ DPDMUX_CNT_ING_FRAME_DISCARD = 0x3,
+ DPDMUX_CNT_ING_MCAST_FRAME = 0x4,
+ DPDMUX_CNT_ING_MCAST_BYTE = 0x5,
+ DPDMUX_CNT_ING_BCAST_FRAME = 0x6,
+ DPDMUX_CNT_ING_BCAST_BYTES = 0x7,
+ DPDMUX_CNT_EGR_FRAME = 0x8,
+ DPDMUX_CNT_EGR_BYTE = 0x9,
+ DPDMUX_CNT_EGR_FRAME_DISCARD = 0xa
+};
+
+/**
+ * enum dpdmux_accepted_frames_type - DPDMUX frame types
+ * @DPDMUX_ADMIT_ALL: The device accepts VLAN tagged, untagged and
+ * priority-tagged frames
+ * @DPDMUX_ADMIT_ONLY_VLAN_TAGGED: The device discards untagged frames or
+ * priority-tagged frames that are received on this
+ * interface
+ * @DPDMUX_ADMIT_ONLY_UNTAGGED: Untagged frames or priority-tagged frames
+ * received on this interface are accepted
+ */
+enum dpdmux_accepted_frames_type {
+ DPDMUX_ADMIT_ALL = 0,
+ DPDMUX_ADMIT_ONLY_VLAN_TAGGED = 1,
+ DPDMUX_ADMIT_ONLY_UNTAGGED = 2
+};
+
+/**
+ * enum dpdmux_action - DPDMUX action for un-accepted frames
+ * @DPDMUX_ACTION_DROP: Drop un-accepted frames
+ * @DPDMUX_ACTION_REDIRECT_TO_CTRL: Redirect un-accepted frames to the
+ * control interface
+ */
+enum dpdmux_action {
+ DPDMUX_ACTION_DROP = 0,
+ DPDMUX_ACTION_REDIRECT_TO_CTRL = 1
+};
+
+/**
+ * struct dpdmux_accepted_frames - Frame types configuration
+ * @type: Defines ingress accepted frames
+ * @unaccept_act: Defines action on frames not accepted
+ */
+struct dpdmux_accepted_frames {
+ enum dpdmux_accepted_frames_type type;
+ enum dpdmux_action unaccept_act;
+};
+
+int dpdmux_if_set_accepted_frames(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ const struct dpdmux_accepted_frames *cfg);
+
+/**
+ * struct dpdmux_if_attr - Structure representing frame types configuration
+ * @rate: Configured interface rate (in bits per second)
+ * @enabled: Indicates if interface is enabled
+ * @accept_frame_type: Indicates type of accepted frames for the interface
+ */
+struct dpdmux_if_attr {
+ u32 rate;
+ int enabled;
+ enum dpdmux_accepted_frames_type accept_frame_type;
+};
+
+int dpdmux_if_get_attributes(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ struct dpdmux_if_attr *attr);
+
+int dpdmux_if_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id);
+
+int dpdmux_if_disable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id);
+
+/**
+ * struct dpdmux_l2_rule - Structure representing L2 rule
+ * @mac_addr: MAC address
+ * @vlan_id: VLAN ID
+ */
+struct dpdmux_l2_rule {
+ u8 mac_addr[6];
+ u16 vlan_id;
+};
+
+int dpdmux_if_remove_l2_rule(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ const struct dpdmux_l2_rule *rule);
+
+int dpdmux_if_add_l2_rule(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ const struct dpdmux_l2_rule *rule);
+
+int dpdmux_if_get_counter(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ enum dpdmux_counter_type counter_type,
+ u64 *counter);
+
+int dpdmux_ul_reset_counters(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+/**
+ * Enable auto-negotiation
+ */
+#define DPDMUX_LINK_OPT_AUTONEG 0x0000000000000001ULL
+/**
+ * Enable half-duplex mode
+ */
+#define DPDMUX_LINK_OPT_HALF_DUPLEX 0x0000000000000002ULL
+/**
+ * Enable pause frames
+ */
+#define DPDMUX_LINK_OPT_PAUSE 0x0000000000000004ULL
+/**
+ * Enable a-symmetric pause frames
+ */
+#define DPDMUX_LINK_OPT_ASYM_PAUSE 0x0000000000000008ULL
+
+/**
+ * struct dpdmux_link_cfg - Structure representing DPDMUX link configuration
+ * @rate: Rate
+ * @options: Mask of available options; use 'DPDMUX_LINK_OPT_<X>' values
+ */
+struct dpdmux_link_cfg {
+ u32 rate;
+ u64 options;
+};
+
+int dpdmux_if_set_link_cfg(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ struct dpdmux_link_cfg *cfg);
+/**
+ * struct dpdmux_link_state - Structure representing DPDMUX link state
+ * @rate: Rate
+ * @options: Mask of available options; use 'DPDMUX_LINK_OPT_<X>' values
+ * @up: 0 - down, 1 - up
+ */
+struct dpdmux_link_state {
+ u32 rate;
+ u64 options;
+ int up;
+};
+
+int dpdmux_if_get_link_state(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 if_id,
+ struct dpdmux_link_state *state);
+
+int dpdmux_set_custom_key(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u64 key_cfg_iova);
+
+/**
+ * struct dpdmux_rule_cfg - Custom classification rule.
+ *
+ * @key_iova: DMA address of buffer storing the look-up value
+ * @mask_iova: DMA address of the mask used for TCAM classification
+ * @key_size: size, in bytes, of the look-up value. This must match the size
+ * of the look-up key defined using dpdmux_set_custom_key, otherwise the
+ * entry will never be hit
+ */
+struct dpdmux_rule_cfg {
+ u64 key_iova;
+ u64 mask_iova;
+ u8 key_size;
+};
+
+/**
+ * struct dpdmux_cls_action - Action to execute for frames matching the
+ * classification entry
+ *
+ * @dest_if: Interface to forward the frames to. Port numbering is similar to
+ * the one used to connect interfaces:
+ * - 0 is the uplink port,
+ * - all others are downlink ports.
+ */
+struct dpdmux_cls_action {
+ u16 dest_if;
+};
+
+int dpdmux_add_custom_cls_entry(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpdmux_rule_cfg *rule,
+ struct dpdmux_cls_action *action);
+
+int dpdmux_remove_custom_cls_entry(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpdmux_rule_cfg *rule);
+
+int dpdmux_get_api_version(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 *major_ver,
+ u16 *minor_ver);
+
+#endif /* __FSL_DPDMUX_H */
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/evb/evb.c
@@ -0,0 +1,1354 @@
+/* Copyright 2015 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <linux/module.h>
+#include <linux/msi.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/rtnetlink.h>
+#include <linux/if_vlan.h>
+
+#include <uapi/linux/if_bridge.h>
+#include <net/netlink.h>
+
+#include <linux/fsl/mc.h>
+
+#include "dpdmux.h"
+#include "dpdmux-cmd.h"
+
+static const char evb_drv_version[] = "0.1";
+
+/* Minimal supported DPDMUX version */
+#define DPDMUX_MIN_VER_MAJOR 6
+#define DPDMUX_MIN_VER_MINOR 0
+
+/* IRQ index */
+#define DPDMUX_MAX_IRQ_NUM 2
+
+/* MAX FRAME LENGTH (currently 10k) */
+#define EVB_MAX_FRAME_LENGTH (10 * 1024)
+#define EVB_MAX_MTU (EVB_MAX_FRAME_LENGTH - VLAN_ETH_HLEN)
+#define EVB_MIN_MTU 68
+
+struct evb_port_priv {
+ struct net_device *netdev;
+ struct list_head list;
+ u16 port_index;
+ struct evb_priv *evb_priv;
+ u8 vlans[VLAN_VID_MASK + 1];
+};
+
+struct evb_priv {
+ /* keep first */
+ struct evb_port_priv uplink;
+
+ struct fsl_mc_io *mc_io;
+ struct list_head port_list;
+ struct dpdmux_attr attr;
+ u16 mux_handle;
+ int dev_id;
+};
+
+static int _evb_port_carrier_state_sync(struct net_device *netdev)
+{
+ struct evb_port_priv *port_priv = netdev_priv(netdev);
+ struct dpdmux_link_state state;
+ int err;
+
+ err = dpdmux_if_get_link_state(port_priv->evb_priv->mc_io, 0,
+ port_priv->evb_priv->mux_handle,
+ port_priv->port_index, &state);
+ if (unlikely(err)) {
+ netdev_err(netdev, "dpdmux_if_get_link_state() err %d\n", err);
+ return err;
+ }
+
+ WARN_ONCE(state.up > 1, "Garbage read into link_state");
+
+ if (state.up)
+ netif_carrier_on(port_priv->netdev);
+ else
+ netif_carrier_off(port_priv->netdev);
+
+ return 0;
+}
+
+static int evb_port_open(struct net_device *netdev)
+{
+ int err;
+
+ /* FIXME: enable port when support added */
+
+ err = _evb_port_carrier_state_sync(netdev);
+ if (err) {
+ netdev_err(netdev, "ethsw_port_carrier_state_sync err %d\n",
+ err);
+ return err;
+ }
+
+ return 0;
+}
+
+static netdev_tx_t evb_dropframe(struct sk_buff *skb, struct net_device *dev)
+{
+ /* we don't support I/O for now, drop the frame */
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+}
+
+static int evb_links_state_update(struct evb_priv *priv)
+{
+ struct evb_port_priv *port_priv;
+ struct list_head *pos;
+ int err;
+
+ list_for_each(pos, &priv->port_list) {
+ port_priv = list_entry(pos, struct evb_port_priv, list);
+
+ err = _evb_port_carrier_state_sync(port_priv->netdev);
+ if (err)
+ netdev_err(port_priv->netdev,
+ "_evb_port_carrier_state_sync err %d\n",
+ err);
+ }
+
+ return 0;
+}
+
+static irqreturn_t evb_irq0_handler(int irq_num, void *arg)
+{
+ return IRQ_WAKE_THREAD;
+}
+
+static irqreturn_t _evb_irq0_handler_thread(int irq_num, void *arg)
+{
+ struct device *dev = (struct device *)arg;
+ struct fsl_mc_device *evb_dev = to_fsl_mc_device(dev);
+ struct net_device *netdev = dev_get_drvdata(dev);
+ struct evb_priv *priv = netdev_priv(netdev);
+ struct fsl_mc_io *io = priv->mc_io;
+ u16 token = priv->mux_handle;
+ int irq_index = DPDMUX_IRQ_INDEX_IF;
+
+ /* Mask the events and the if_id reserved bits to be cleared on read */
+ u32 status = DPDMUX_IRQ_EVENT_LINK_CHANGED | 0xFFFF0000;
+ int err;
+
+ /* Sanity check */
+ if (WARN_ON(!evb_dev || !evb_dev->irqs || !evb_dev->irqs[irq_index]))
+ goto out;
+ if (WARN_ON(evb_dev->irqs[irq_index]->msi_desc->irq != (u32)irq_num))
+ goto out;
+
+ err = dpdmux_get_irq_status(io, 0, token, irq_index, &status);
+ if (unlikely(err)) {
+ netdev_err(netdev, "Can't get irq status (err %d)", err);
+ err = dpdmux_clear_irq_status(io, 0, token, irq_index,
+ 0xFFFFFFFF);
+ if (unlikely(err))
+ netdev_err(netdev, "Can't clear irq status (err %d)",
+ err);
+ goto out;
+ }
+
+ if (status & DPDMUX_IRQ_EVENT_LINK_CHANGED) {
+ err = evb_links_state_update(priv);
+ if (unlikely(err))
+ goto out;
+ }
+
+out:
+ return IRQ_HANDLED;
+}
+
+static int evb_setup_irqs(struct fsl_mc_device *evb_dev)
+{
+ struct device *dev = &evb_dev->dev;
+ struct net_device *netdev = dev_get_drvdata(dev);
+ struct evb_priv *priv = netdev_priv(netdev);
+ int err = 0;
+ struct fsl_mc_device_irq *irq;
+ const int irq_index = DPDMUX_IRQ_INDEX_IF;
+ u32 mask = DPDMUX_IRQ_EVENT_LINK_CHANGED;
+
+ err = fsl_mc_allocate_irqs(evb_dev);
+ if (unlikely(err)) {
+ dev_err(dev, "MC irqs allocation failed\n");
+ return err;
+ }
+
+ if (WARN_ON(evb_dev->obj_desc.irq_count != DPDMUX_MAX_IRQ_NUM)) {
+ err = -EINVAL;
+ goto free_irq;
+ }
+
+ err = dpdmux_set_irq_enable(priv->mc_io, 0, priv->mux_handle,
+ irq_index, 0);
+ if (unlikely(err)) {
+ dev_err(dev, "dpdmux_set_irq_enable err %d\n", err);
+ goto free_irq;
+ }
+
+ irq = evb_dev->irqs[irq_index];
+
+ err = devm_request_threaded_irq(dev, irq->msi_desc->irq,
+ evb_irq0_handler,
+ _evb_irq0_handler_thread,
+ IRQF_NO_SUSPEND | IRQF_ONESHOT,
+ dev_name(dev), dev);
+ if (unlikely(err)) {
+ dev_err(dev, "devm_request_threaded_irq(): %d", err);
+ goto free_irq;
+ }
+
+ err = dpdmux_set_irq_mask(priv->mc_io, 0, priv->mux_handle,
+ irq_index, mask);
+ if (unlikely(err)) {
+ dev_err(dev, "dpdmux_set_irq_mask(): %d", err);
+ goto free_devm_irq;
+ }
+
+ err = dpdmux_set_irq_enable(priv->mc_io, 0, priv->mux_handle,
+ irq_index, 1);
+ if (unlikely(err)) {
+ dev_err(dev, "dpdmux_set_irq_enable(): %d", err);
+ goto free_devm_irq;
+ }
+
+ return 0;
+
+free_devm_irq:
+ devm_free_irq(dev, irq->msi_desc->irq, dev);
+free_irq:
+ fsl_mc_free_irqs(evb_dev);
+ return err;
+}
+
+static void evb_teardown_irqs(struct fsl_mc_device *evb_dev)
+{
+ struct device *dev = &evb_dev->dev;
+ struct net_device *netdev = dev_get_drvdata(dev);
+ struct evb_priv *priv = netdev_priv(netdev);
+
+ dpdmux_set_irq_enable(priv->mc_io, 0, priv->mux_handle,
+ DPDMUX_IRQ_INDEX_IF, 0);
+
+ devm_free_irq(dev,
+ evb_dev->irqs[DPDMUX_IRQ_INDEX_IF]->msi_desc->irq,
+ dev);
+ fsl_mc_free_irqs(evb_dev);
+}
+
+static int evb_port_add_rule(struct net_device *netdev,
+ const unsigned char *addr, u16 vid)
+{
+ struct evb_port_priv *port_priv = netdev_priv(netdev);
+ struct dpdmux_l2_rule rule = { .vlan_id = vid };
+ int err;
+
+ if (addr)
+ ether_addr_copy(rule.mac_addr, addr);
+
+ err = dpdmux_if_add_l2_rule(port_priv->evb_priv->mc_io,
+ 0,
+ port_priv->evb_priv->mux_handle,
+ port_priv->port_index, &rule);
+ if (unlikely(err))
+ netdev_err(netdev, "dpdmux_if_add_l2_rule err %d\n", err);
+ return err;
+}
+
+static int evb_port_del_rule(struct net_device *netdev,
+ const unsigned char *addr, u16 vid)
+{
+ struct evb_port_priv *port_priv = netdev_priv(netdev);
+ struct dpdmux_l2_rule rule = { .vlan_id = vid };
+ int err;
+
+ if (addr)
+ ether_addr_copy(rule.mac_addr, addr);
+
+ err = dpdmux_if_remove_l2_rule(port_priv->evb_priv->mc_io,
+ 0,
+ port_priv->evb_priv->mux_handle,
+ port_priv->port_index, &rule);
+ if (unlikely(err))
+ netdev_err(netdev, "dpdmux_if_remove_l2_rule err %d\n", err);
+ return err;
+}
+
+static bool _lookup_address(struct net_device *netdev,
+ const unsigned char *addr)
+{
+ struct netdev_hw_addr *ha;
+ struct netdev_hw_addr_list *list = (is_unicast_ether_addr(addr)) ?
+ &netdev->uc : &netdev->mc;
+
+ netif_addr_lock_bh(netdev);
+ list_for_each_entry(ha, &list->list, list) {
+ if (ether_addr_equal(ha->addr, addr)) {
+ netif_addr_unlock_bh(netdev);
+ return true;
+ }
+ }
+ netif_addr_unlock_bh(netdev);
+ return false;
+}
+
+static inline int evb_port_fdb_prep(struct nlattr *tb[],
+ struct net_device *netdev,
+ const unsigned char *addr, u16 *vid,
+ bool del)
+{
+ struct evb_port_priv *port_priv = netdev_priv(netdev);
+ struct evb_priv *evb_priv = port_priv->evb_priv;
+
+ *vid = 0;
+
+ if (evb_priv->attr.method != DPDMUX_METHOD_MAC &&
+ evb_priv->attr.method != DPDMUX_METHOD_C_VLAN_MAC) {
+ netdev_err(netdev,
+ "EVB mode does not support MAC classification\n");
+ return -EOPNOTSUPP;
+ }
+
+ /* check if the address is configured on this port */
+ if (_lookup_address(netdev, addr)) {
+ if (!del)
+ return -EEXIST;
+ } else {
+ if (del)
+ return -ENOENT;
+ }
+
+ if (tb[NDA_VLAN] && evb_priv->attr.method == DPDMUX_METHOD_C_VLAN_MAC) {
+ if (nla_len(tb[NDA_VLAN]) != sizeof(unsigned short)) {
+ netdev_err(netdev, "invalid vlan size %d\n",
+ nla_len(tb[NDA_VLAN]));
+ return -EINVAL;
+ }
+
+ *vid = nla_get_u16(tb[NDA_VLAN]);
+
+ if (!*vid || *vid >= VLAN_VID_MASK) {
+ netdev_err(netdev, "invalid vid value 0x%04x\n", *vid);
+ return -EINVAL;
+ }
+ } else if (evb_priv->attr.method == DPDMUX_METHOD_C_VLAN_MAC) {
+ netdev_err(netdev,
+ "EVB mode requires explicit VLAN configuration\n");
+ return -EINVAL;
+ } else if (tb[NDA_VLAN]) {
+ netdev_warn(netdev, "VLAN not supported, argument ignored\n");
+ }
+
+ return 0;
+}
+
+static int evb_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
+ struct net_device *netdev,
+ const unsigned char *addr, u16 vid, u16 flags)
+{
+ u16 _vid;
+ int err;
+
+ /* TODO: add replace support when added to iproute bridge */
+ if (!(flags & NLM_F_REQUEST)) {
+ netdev_err(netdev,
+ "evb_port_fdb_add unexpected flags value %08x\n",
+ flags);
+ return -EINVAL;
+ }
+
+ err = evb_port_fdb_prep(tb, netdev, addr, &_vid, 0);
+ if (unlikely(err))
+ return err;
+
+ err = evb_port_add_rule(netdev, addr, _vid);
+ if (unlikely(err))
+ return err;
+
+ if (is_unicast_ether_addr(addr)) {
+ err = dev_uc_add(netdev, addr);
+ if (unlikely(err)) {
+ netdev_err(netdev, "dev_uc_add err %d\n", err);
+ return err;
+ }
+ } else {
+ err = dev_mc_add(netdev, addr);
+ if (unlikely(err)) {
+ netdev_err(netdev, "dev_mc_add err %d\n", err);
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+static int evb_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
+ struct net_device *netdev,
+ const unsigned char *addr, u16 vid)
+{
+ u16 _vid;
+ int err;
+
+ err = evb_port_fdb_prep(tb, netdev, addr, &_vid, 1);
+ if (unlikely(err))
+ return err;
+
+ err = evb_port_del_rule(netdev, addr, _vid);
+ if (unlikely(err))
+ return err;
+
+ if (is_unicast_ether_addr(addr)) {
+ err = dev_uc_del(netdev, addr);
+ if (unlikely(err)) {
+ netdev_err(netdev, "dev_uc_del err %d\n", err);
+ return err;
+ }
+ } else {
+ err = dev_mc_del(netdev, addr);
+ if (unlikely(err)) {
+ netdev_err(netdev, "dev_mc_del err %d\n", err);
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+static int evb_change_mtu(struct net_device *netdev,
+ int mtu)
+{
+ struct evb_port_priv *port_priv = netdev_priv(netdev);
+ struct evb_priv *evb_priv = port_priv->evb_priv;
+ struct list_head *pos;
+ int err = 0;
+
+ /* This operation is not permitted on downlinks */
+ if (port_priv->port_index > 0)
+ return -EPERM;
+
+ err = dpdmux_set_max_frame_length(evb_priv->mc_io,
+ 0,
+ evb_priv->mux_handle,
+ (uint16_t)(mtu + VLAN_ETH_HLEN));
+
+ if (unlikely(err)) {
+ netdev_err(netdev, "dpdmux_ul_set_max_frame_length err %d\n",
+ err);
+ return err;
+ }
+
+ /* Update the max frame length for downlinks */
+ list_for_each(pos, &evb_priv->port_list) {
+ port_priv = list_entry(pos, struct evb_port_priv, list);
+ port_priv->netdev->mtu = mtu;
+ }
+
+ netdev->mtu = mtu;
+ return 0;
+}
+
+static const struct nla_policy ifla_br_policy[IFLA_MAX + 1] = {
+ [IFLA_BRIDGE_FLAGS] = { .type = NLA_U16 },
+ [IFLA_BRIDGE_MODE] = { .type = NLA_U16 },
+ [IFLA_BRIDGE_VLAN_INFO] = { .type = NLA_BINARY,
+ .len = sizeof(struct bridge_vlan_info), },
+};
+
+static int evb_setlink_af_spec(struct net_device *netdev,
+ struct nlattr **tb)
+{
+ struct bridge_vlan_info *vinfo;
+ struct evb_port_priv *port_priv = netdev_priv(netdev);
+ int err = 0;
+
+ if (!tb[IFLA_BRIDGE_VLAN_INFO]) {
+ netdev_err(netdev, "no VLAN INFO in nlmsg\n");
+ return -EOPNOTSUPP;
+ }
+
+ vinfo = nla_data(tb[IFLA_BRIDGE_VLAN_INFO]);
+
+ if (!vinfo->vid || vinfo->vid > VLAN_VID_MASK)
+ return -EINVAL;
+
+ err = evb_port_add_rule(netdev, NULL, vinfo->vid);
+ if (unlikely(err))
+ return err;
+
+ port_priv->vlans[vinfo->vid] = 1;
+
+ return 0;
+}
+
+static int evb_setlink(struct net_device *netdev,
+ struct nlmsghdr *nlh,
+ u16 flags)
+{
+ struct evb_port_priv *port_priv = netdev_priv(netdev);
+ struct evb_priv *evb_priv = port_priv->evb_priv;
+ struct nlattr *attr;
+ struct nlattr *tb[(IFLA_BRIDGE_MAX > IFLA_BRPORT_MAX) ?
+ IFLA_BRIDGE_MAX : IFLA_BRPORT_MAX + 1];
+ int err = 0;
+
+ if (evb_priv->attr.method != DPDMUX_METHOD_C_VLAN &&
+ evb_priv->attr.method != DPDMUX_METHOD_S_VLAN) {
+ netdev_err(netdev,
+ "EVB mode does not support VLAN only classification\n");
+ return -EOPNOTSUPP;
+ }
+
+ attr = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
+ if (attr) {
+ err = nla_parse_nested(tb, IFLA_BRIDGE_MAX, attr,
+ ifla_br_policy);
+ if (unlikely(err)) {
+ netdev_err(netdev,
+ "nla_parse_nested for br_policy err %d\n",
+ err);
+ return err;
+ }
+
+ err = evb_setlink_af_spec(netdev, tb);
+ return err;
+ }
+
+ netdev_err(netdev, "nlmsg_find_attr found no AF_SPEC\n");
+ return -EOPNOTSUPP;
+}
+
+static int __nla_put_netdev(struct sk_buff *skb, struct net_device *netdev)
+{
+ struct evb_port_priv *port_priv = netdev_priv(netdev);
+ struct evb_priv *evb_priv = port_priv->evb_priv;
+ u8 operstate = netif_running(netdev) ?
+ netdev->operstate : IF_OPER_DOWN;
+ int iflink;
+ int err;
+
+ err = nla_put_string(skb, IFLA_IFNAME, netdev->name);
+ if (unlikely(err))
+ goto nla_put_err;
+ err = nla_put_u32(skb, IFLA_MASTER, evb_priv->uplink.netdev->ifindex);
+ if (unlikely(err))
+ goto nla_put_err;
+ err = nla_put_u32(skb, IFLA_MTU, netdev->mtu);
+ if (unlikely(err))
+ goto nla_put_err;
+ err = nla_put_u8(skb, IFLA_OPERSTATE, operstate);
+ if (unlikely(err))
+ goto nla_put_err;
+ if (netdev->addr_len) {
+ err = nla_put(skb, IFLA_ADDRESS, netdev->addr_len,
+ netdev->dev_addr);
+ if (unlikely(err))
+ goto nla_put_err;
+ }
+
+ iflink = dev_get_iflink(netdev);
+ if (netdev->ifindex != iflink) {
+ err = nla_put_u32(skb, IFLA_LINK, iflink);
+ if (unlikely(err))
+ goto nla_put_err;
+ }
+
+ return 0;
+
+nla_put_err:
+ netdev_err(netdev, "nla_put_ err %d\n", err);
+ return err;
+}
+
+static int __nla_put_port(struct sk_buff *skb, struct net_device *netdev)
+{
+ struct nlattr *nest;
+ int err;
+
+ nest = nla_nest_start(skb, IFLA_PROTINFO | NLA_F_NESTED);
+ if (!nest) {
+ netdev_err(netdev, "nla_nest_start failed\n");
+ return -ENOMEM;
+ }
+
+ err = nla_put_u8(skb, IFLA_BRPORT_STATE, BR_STATE_FORWARDING);
+ if (unlikely(err))
+ goto nla_put_err;
+ err = nla_put_u16(skb, IFLA_BRPORT_PRIORITY, 0);
+ if (unlikely(err))
+ goto nla_put_err;
+ err = nla_put_u32(skb, IFLA_BRPORT_COST, 0);
+ if (unlikely(err))
+ goto nla_put_err;
+ err = nla_put_u8(skb, IFLA_BRPORT_MODE, 0);
+ if (unlikely(err))
+ goto nla_put_err;
+ err = nla_put_u8(skb, IFLA_BRPORT_GUARD, 0);
+ if (unlikely(err))
+ goto nla_put_err;
+ err = nla_put_u8(skb, IFLA_BRPORT_PROTECT, 0);
+ if (unlikely(err))
+ goto nla_put_err;
+ err = nla_put_u8(skb, IFLA_BRPORT_FAST_LEAVE, 0);
+ if (unlikely(err))
+ goto nla_put_err;
+ err = nla_put_u8(skb, IFLA_BRPORT_LEARNING, 0);
+ if (unlikely(err))
+ goto nla_put_err;
+ err = nla_put_u8(skb, IFLA_BRPORT_UNICAST_FLOOD, 1);
+ if (unlikely(err))
+ goto nla_put_err;
+ nla_nest_end(skb, nest);
+
+ return 0;
+
+nla_put_err:
+ netdev_err(netdev, "nla_put_ err %d\n", err);
+ nla_nest_cancel(skb, nest);
+ return err;
+}
+
+static int __nla_put_vlan(struct sk_buff *skb, struct net_device *netdev)
+{
+ struct evb_port_priv *port_priv = netdev_priv(netdev);
+ struct nlattr *nest;
+ struct bridge_vlan_info vinfo;
+ const u8 *vlans = port_priv->vlans;
+ u16 i;
+ int err;
+
+ nest = nla_nest_start(skb, IFLA_AF_SPEC);
+ if (!nest) {
+ netdev_err(netdev, "nla_nest_start failed");
+ return -ENOMEM;
+ }
+
+ for (i = 0; i < VLAN_VID_MASK + 1; i++) {
+ if (!vlans[i])
+ continue;
+
+ vinfo.flags = 0;
+ vinfo.vid = i;
+
+ err = nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
+ sizeof(vinfo), &vinfo);
+ if (unlikely(err))
+ goto nla_put_err;
+ }
+
+ nla_nest_end(skb, nest);
+
+ return 0;
+
+nla_put_err:
+ netdev_err(netdev, "nla_put_ err %d\n", err);
+ nla_nest_cancel(skb, nest);
+ return err;
+}
+
+static int evb_getlink(struct sk_buff *skb, u32 pid, u32 seq,
+ struct net_device *netdev, u32 filter_mask, int nlflags)
+{
+ struct evb_port_priv *port_priv = netdev_priv(netdev);
+ struct evb_priv *evb_priv = port_priv->evb_priv;
+ struct ifinfomsg *hdr;
+ struct nlmsghdr *nlh;
+ int err;
+
+ if (evb_priv->attr.method != DPDMUX_METHOD_C_VLAN &&
+ evb_priv->attr.method != DPDMUX_METHOD_S_VLAN) {
+ return 0;
+ }
+
+ nlh = nlmsg_put(skb, pid, seq, RTM_NEWLINK, sizeof(*hdr), NLM_F_MULTI);
+ if (!nlh)
+ return -EMSGSIZE;
+
+ hdr = nlmsg_data(nlh);
+ memset(hdr, 0, sizeof(*hdr));
+ hdr->ifi_family = AF_BRIDGE;
+ hdr->ifi_type = netdev->type;
+ hdr->ifi_index = netdev->ifindex;
+ hdr->ifi_flags = dev_get_flags(netdev);
+
+ err = __nla_put_netdev(skb, netdev);
+ if (unlikely(err))
+ goto nla_put_err;
+
+ err = __nla_put_port(skb, netdev);
+ if (unlikely(err))
+ goto nla_put_err;
+
+ /* Check if the VID information is requested */
+ if (filter_mask & RTEXT_FILTER_BRVLAN) {
+ err = __nla_put_vlan(skb, netdev);
+ if (unlikely(err))
+ goto nla_put_err;
+ }
+
+ nlmsg_end(skb, nlh);
+ return skb->len;
+
+nla_put_err:
+ nlmsg_cancel(skb, nlh);
+ return -EMSGSIZE;
+}
+
+static int evb_dellink(struct net_device *netdev,
+ struct nlmsghdr *nlh,
+ u16 flags)
+{
+ struct nlattr *tb[IFLA_BRIDGE_MAX + 1];
+ struct nlattr *spec;
+ struct bridge_vlan_info *vinfo;
+ struct evb_port_priv *port_priv = netdev_priv(netdev);
+ int err = 0;
+
+ spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
+ if (!spec)
+ return 0;
+
+ err = nla_parse_nested(tb, IFLA_BRIDGE_MAX, spec, ifla_br_policy);
+ if (unlikely(err))
+ return err;
+
+ if (!tb[IFLA_BRIDGE_VLAN_INFO])
+ return -EOPNOTSUPP;
+
+ vinfo = nla_data(tb[IFLA_BRIDGE_VLAN_INFO]);
+
+ if (!vinfo->vid || vinfo->vid > VLAN_VID_MASK)
+ return -EINVAL;
+
+ err = evb_port_del_rule(netdev, NULL, vinfo->vid);
+ if (unlikely(err)) {
+ netdev_err(netdev, "evb_port_del_rule err %d\n", err);
+ return err;
+ }
+ port_priv->vlans[vinfo->vid] = 0;
+
+ return 0;
+}
+
+struct rtnl_link_stats64 *evb_port_get_stats(struct net_device *netdev,
+ struct rtnl_link_stats64 *storage)
+{
+ struct evb_port_priv *port_priv = netdev_priv(netdev);
+ u64 tmp;
+ int err;
+
+ err = dpdmux_if_get_counter(port_priv->evb_priv->mc_io,
+ 0,
+ port_priv->evb_priv->mux_handle,
+ port_priv->port_index,
+ DPDMUX_CNT_ING_FRAME, &storage->rx_packets);
+ if (unlikely(err))
+ goto error;
+
+ err = dpdmux_if_get_counter(port_priv->evb_priv->mc_io,
+ 0,
+ port_priv->evb_priv->mux_handle,
+ port_priv->port_index,
+ DPDMUX_CNT_ING_BYTE, &storage->rx_bytes);
+ if (unlikely(err))
+ goto error;
+
+ err = dpdmux_if_get_counter(port_priv->evb_priv->mc_io,
+ 0,
+ port_priv->evb_priv->mux_handle,
+ port_priv->port_index,
+ DPDMUX_CNT_ING_FLTR_FRAME, &tmp);
+ if (unlikely(err))
+ goto error;
+
+ err = dpdmux_if_get_counter(port_priv->evb_priv->mc_io,
+ 0,
+ port_priv->evb_priv->mux_handle,
+ port_priv->port_index,
+ DPDMUX_CNT_ING_FRAME_DISCARD,
+ &storage->rx_dropped);
+ if (unlikely(err)) {
+ storage->rx_dropped = tmp;
+ goto error;
+ }
+ storage->rx_dropped += tmp;
+
+ err = dpdmux_if_get_counter(port_priv->evb_priv->mc_io,
+ 0,
+ port_priv->evb_priv->mux_handle,
+ port_priv->port_index,
+ DPDMUX_CNT_ING_MCAST_FRAME,
+ &storage->multicast);
+ if (unlikely(err))
+ goto error;
+
+ err = dpdmux_if_get_counter(port_priv->evb_priv->mc_io,
+ 0,
+ port_priv->evb_priv->mux_handle,
+ port_priv->port_index,
+ DPDMUX_CNT_EGR_FRAME, &storage->tx_packets);
+ if (unlikely(err))
+ goto error;
+
+ err = dpdmux_if_get_counter(port_priv->evb_priv->mc_io,
+ 0,
+ port_priv->evb_priv->mux_handle,
+ port_priv->port_index,
+ DPDMUX_CNT_EGR_BYTE, &storage->tx_bytes);
+ if (unlikely(err))
+ goto error;
+
+ err = dpdmux_if_get_counter(port_priv->evb_priv->mc_io,
+ 0,
+ port_priv->evb_priv->mux_handle,
+ port_priv->port_index,
+ DPDMUX_CNT_EGR_FRAME_DISCARD,
+ &storage->tx_dropped);
+ if (unlikely(err))
+ goto error;
+
+ return storage;
+
+error:
+ netdev_err(netdev, "dpdmux_if_get_counter err %d\n", err);
+ return storage;
+}
+
+static const struct net_device_ops evb_port_ops = {
+ .ndo_open = &evb_port_open,
+
+ .ndo_start_xmit = &evb_dropframe,
+
+ .ndo_fdb_add = &evb_port_fdb_add,
+ .ndo_fdb_del = &evb_port_fdb_del,
+
+ .ndo_get_stats64 = &evb_port_get_stats,
+ .ndo_change_mtu = &evb_change_mtu,
+};
+
+static void evb_get_drvinfo(struct net_device *netdev,
+ struct ethtool_drvinfo *drvinfo)
+{
+ struct evb_port_priv *port_priv = netdev_priv(netdev);
+ u16 version_major, version_minor;
+ int err;
+
+ strlcpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
+ strlcpy(drvinfo->version, evb_drv_version, sizeof(drvinfo->version));
+
+ err = dpdmux_get_api_version(port_priv->evb_priv->mc_io, 0,
+ &version_major,
+ &version_minor);
+ if (err)
+ strlcpy(drvinfo->fw_version, "N/A",
+ sizeof(drvinfo->fw_version));
+ else
+ snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+ "%u.%u", version_major, version_minor);
+
+ strlcpy(drvinfo->bus_info, dev_name(netdev->dev.parent->parent),
+ sizeof(drvinfo->bus_info));
+}
+
+static int evb_get_settings(struct net_device *netdev,
+ struct ethtool_cmd *cmd)
+{
+ struct evb_port_priv *port_priv = netdev_priv(netdev);
+ struct dpdmux_link_state state = {0};
+ int err = 0;
+
+ err = dpdmux_if_get_link_state(port_priv->evb_priv->mc_io, 0,
+ port_priv->evb_priv->mux_handle,
+ port_priv->port_index,
+ &state);
+ if (err) {
+ netdev_err(netdev, "ERROR %d getting link state", err);
+ goto out;
+ }
+
+ /* At the moment, we have no way of interrogating the DPMAC
+ * from the DPDMUX side or there may not exist a DPMAC at all.
+ * Report only autoneg state, duplexity and speed.
+ */
+ if (state.options & DPDMUX_LINK_OPT_AUTONEG)
+ cmd->autoneg = AUTONEG_ENABLE;
+ if (!(state.options & DPDMUX_LINK_OPT_HALF_DUPLEX))
+ cmd->duplex = DUPLEX_FULL;
+ ethtool_cmd_speed_set(cmd, state.rate);
+
+out:
+ return err;
+}
+
+static int evb_set_settings(struct net_device *netdev,
+ struct ethtool_cmd *cmd)
+{
+ struct evb_port_priv *port_priv = netdev_priv(netdev);
+ struct dpdmux_link_state state = {0};
+ struct dpdmux_link_cfg cfg = {0};
+ int err = 0;
+
+ netdev_dbg(netdev, "Setting link parameters...");
+
+ err = dpdmux_if_get_link_state(port_priv->evb_priv->mc_io, 0,
+ port_priv->evb_priv->mux_handle,
+ port_priv->port_index,
+ &state);
+ if (err) {
+ netdev_err(netdev, "ERROR %d getting link state", err);
+ goto out;
+ }
+
+ /* Due to a temporary MC limitation, the DPDMUX port must be down
+ * in order to be able to change link settings. Taking steps to let
+ * the user know that.
+ */
+ if (netif_running(netdev)) {
+ netdev_info(netdev,
+ "Sorry, interface must be brought down first.\n");
+ return -EACCES;
+ }
+
+ cfg.options = state.options;
+ cfg.rate = ethtool_cmd_speed(cmd);
+ if (cmd->autoneg == AUTONEG_ENABLE)
+ cfg.options |= DPDMUX_LINK_OPT_AUTONEG;
+ else
+ cfg.options &= ~DPDMUX_LINK_OPT_AUTONEG;
+ if (cmd->duplex == DUPLEX_HALF)
+ cfg.options |= DPDMUX_LINK_OPT_HALF_DUPLEX;
+ else
+ cfg.options &= ~DPDMUX_LINK_OPT_HALF_DUPLEX;
+
+ err = dpdmux_if_set_link_cfg(port_priv->evb_priv->mc_io, 0,
+ port_priv->evb_priv->mux_handle,
+ port_priv->port_index,
+ &cfg);
+ if (err)
+ /* ethtool will be loud enough if we return an error; no point
+ * in putting our own error message on the console by default
+ */
+ netdev_dbg(netdev, "ERROR %d setting link cfg", err);
+
+out:
+ return err;
+}
+
+static struct {
+ enum dpdmux_counter_type id;
+ char name[ETH_GSTRING_LEN];
+} evb_ethtool_counters[] = {
+ {DPDMUX_CNT_ING_FRAME, "rx frames"},
+ {DPDMUX_CNT_ING_BYTE, "rx bytes"},
+ {DPDMUX_CNT_ING_FLTR_FRAME, "rx filtered frames"},
+ {DPDMUX_CNT_ING_FRAME_DISCARD, "rx discarded frames"},
+ {DPDMUX_CNT_ING_BCAST_FRAME, "rx b-cast frames"},
+ {DPDMUX_CNT_ING_BCAST_BYTES, "rx b-cast bytes"},
+ {DPDMUX_CNT_ING_MCAST_FRAME, "rx m-cast frames"},
+ {DPDMUX_CNT_ING_MCAST_BYTE, "rx m-cast bytes"},
+ {DPDMUX_CNT_EGR_FRAME, "tx frames"},
+ {DPDMUX_CNT_EGR_BYTE, "tx bytes"},
+ {DPDMUX_CNT_EGR_FRAME_DISCARD, "tx discarded frames"},
+};
+
+static int evb_ethtool_get_sset_count(struct net_device *dev, int sset)
+{
+ switch (sset) {
+ case ETH_SS_STATS:
+ return ARRAY_SIZE(evb_ethtool_counters);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static void evb_ethtool_get_strings(struct net_device *netdev,
+ u32 stringset, u8 *data)
+{
+ u32 i;
+
+ switch (stringset) {
+ case ETH_SS_STATS:
+ for (i = 0; i < ARRAY_SIZE(evb_ethtool_counters); i++)
+ memcpy(data + i * ETH_GSTRING_LEN,
+ evb_ethtool_counters[i].name, ETH_GSTRING_LEN);
+ break;
+ }
+}
+
+static void evb_ethtool_get_stats(struct net_device *netdev,
+ struct ethtool_stats *stats,
+ u64 *data)
+{
+ struct evb_port_priv *port_priv = netdev_priv(netdev);
+ u32 i;
+ int err;
+
+ for (i = 0; i < ARRAY_SIZE(evb_ethtool_counters); i++) {
+ err = dpdmux_if_get_counter(port_priv->evb_priv->mc_io,
+ 0,
+ port_priv->evb_priv->mux_handle,
+ port_priv->port_index,
+ evb_ethtool_counters[i].id,
+ &data[i]);
+ if (err)
+ netdev_err(netdev, "dpdmux_if_get_counter[%s] err %d\n",
+ evb_ethtool_counters[i].name, err);
+ }
+}
+
+static const struct ethtool_ops evb_port_ethtool_ops = {
+ .get_drvinfo = &evb_get_drvinfo,
+ .get_link = &ethtool_op_get_link,
+ .get_settings = &evb_get_settings,
+ .set_settings = &evb_set_settings,
+ .get_strings = &evb_ethtool_get_strings,
+ .get_ethtool_stats = &evb_ethtool_get_stats,
+ .get_sset_count = &evb_ethtool_get_sset_count,
+};
+
+static int evb_open(struct net_device *netdev)
+{
+ struct evb_priv *priv = netdev_priv(netdev);
+ int err = 0;
+
+ err = dpdmux_enable(priv->mc_io, 0, priv->mux_handle);
+ if (unlikely(err))
+ netdev_err(netdev, "dpdmux_enable err %d\n", err);
+
+ return err;
+}
+
+static int evb_close(struct net_device *netdev)
+{
+ struct evb_priv *priv = netdev_priv(netdev);
+ int err = 0;
+
+ err = dpdmux_disable(priv->mc_io, 0, priv->mux_handle);
+ if (unlikely(err))
+ netdev_err(netdev, "dpdmux_disable err %d\n", err);
+
+ return err;
+}
+
+static const struct net_device_ops evb_ops = {
+ .ndo_start_xmit = &evb_dropframe,
+ .ndo_open = &evb_open,
+ .ndo_stop = &evb_close,
+
+ .ndo_bridge_setlink = &evb_setlink,
+ .ndo_bridge_getlink = &evb_getlink,
+ .ndo_bridge_dellink = &evb_dellink,
+
+ .ndo_get_stats64 = &evb_port_get_stats,
+ .ndo_change_mtu = &evb_change_mtu,
+};
+
+static int evb_takedown(struct fsl_mc_device *evb_dev)
+{
+ struct device *dev = &evb_dev->dev;
+ struct net_device *netdev = dev_get_drvdata(dev);
+ struct evb_priv *priv = netdev_priv(netdev);
+ int err;
+
+ err = dpdmux_close(priv->mc_io, 0, priv->mux_handle);
+ if (unlikely(err))
+ dev_warn(dev, "dpdmux_close err %d\n", err);
+
+ return 0;
+}
+
+static int evb_init(struct fsl_mc_device *evb_dev)
+{
+ struct device *dev = &evb_dev->dev;
+ struct net_device *netdev = dev_get_drvdata(dev);
+ struct evb_priv *priv = netdev_priv(netdev);
+ u16 version_major;
+ u16 version_minor;
+ int err = 0;
+
+ priv->dev_id = evb_dev->obj_desc.id;
+
+ err = dpdmux_open(priv->mc_io, 0, priv->dev_id, &priv->mux_handle);
+ if (unlikely(err)) {
+ dev_err(dev, "dpdmux_open err %d\n", err);
+ goto err_exit;
+ }
+ if (!priv->mux_handle) {
+ dev_err(dev, "dpdmux_open returned null handle but no error\n");
+ err = -EFAULT;
+ goto err_exit;
+ }
+
+ err = dpdmux_get_attributes(priv->mc_io, 0, priv->mux_handle,
+ &priv->attr);
+ if (unlikely(err)) {
+ dev_err(dev, "dpdmux_get_attributes err %d\n", err);
+ goto err_close;
+ }
+
+ err = dpdmux_get_api_version(priv->mc_io, 0,
+ &version_major,
+ &version_minor);
+ if (unlikely(err)) {
+ dev_err(dev, "dpdmux_get_api_version err %d\n", err);
+ goto err_close;
+ }
+
+ /* Minimum supported DPDMUX version check */
+ if (version_major < DPDMUX_MIN_VER_MAJOR ||
+ (version_major == DPDMUX_MIN_VER_MAJOR &&
+ version_minor < DPDMUX_MIN_VER_MINOR)) {
+ dev_err(dev, "DPDMUX version %d.%d not supported. Use %d.%d or greater.\n",
+ version_major, version_minor,
+ DPDMUX_MIN_VER_MAJOR, DPDMUX_MIN_VER_MAJOR);
+ err = -ENOTSUPP;
+ goto err_close;
+ }
+
+ err = dpdmux_reset(priv->mc_io, 0, priv->mux_handle);
+ if (unlikely(err)) {
+ dev_err(dev, "dpdmux_reset err %d\n", err);
+ goto err_close;
+ }
+
+ return 0;
+
+err_close:
+ dpdmux_close(priv->mc_io, 0, priv->mux_handle);
+err_exit:
+ return err;
+}
+
+static int evb_remove(struct fsl_mc_device *evb_dev)
+{
+ struct device *dev = &evb_dev->dev;
+ struct net_device *netdev = dev_get_drvdata(dev);
+ struct evb_priv *priv = netdev_priv(netdev);
+ struct evb_port_priv *port_priv;
+ struct list_head *pos;
+
+ list_for_each(pos, &priv->port_list) {
+ port_priv = list_entry(pos, struct evb_port_priv, list);
+
+ rtnl_lock();
+ netdev_upper_dev_unlink(port_priv->netdev, netdev);
+ rtnl_unlock();
+
+ unregister_netdev(port_priv->netdev);
+ free_netdev(port_priv->netdev);
+ }
+
+ evb_teardown_irqs(evb_dev);
+
+ unregister_netdev(netdev);
+
+ evb_takedown(evb_dev);
+ fsl_mc_portal_free(priv->mc_io);
+
+ dev_set_drvdata(dev, NULL);
+ free_netdev(netdev);
+
+ return 0;
+}
+
+static int evb_probe(struct fsl_mc_device *evb_dev)
+{
+ struct device *dev;
+ struct evb_priv *priv = NULL;
+ struct net_device *netdev = NULL;
+ char port_name[IFNAMSIZ];
+ int i;
+ int err = 0;
+
+ dev = &evb_dev->dev;
+
+ /* register switch device, it's for management only - no I/O */
+ netdev = alloc_etherdev(sizeof(*priv));
+ if (!netdev) {
+ dev_err(dev, "alloc_etherdev error\n");
+ return -ENOMEM;
+ }
+ netdev->netdev_ops = &evb_ops;
+
+ dev_set_drvdata(dev, netdev);
+
+ priv = netdev_priv(netdev);
+
+ err = fsl_mc_portal_allocate(evb_dev, FSL_MC_IO_ATOMIC_CONTEXT_PORTAL,
+ &priv->mc_io);
+ if (err) {
+ if (err == -ENXIO)
+ err = -EPROBE_DEFER;
+ else
+ dev_err(dev, "fsl_mc_portal_allocate err %d\n", err);
+ goto err_free_netdev;
+ }
+
+ if (!priv->mc_io) {
+ dev_err(dev, "fsl_mc_portal_allocate returned null handle but no error\n");
+ err = -EFAULT;
+ goto err_free_netdev;
+ }
+
+ err = evb_init(evb_dev);
+ if (unlikely(err)) {
+ dev_err(dev, "evb init err %d\n", err);
+ goto err_free_cmdport;
+ }
+
+ INIT_LIST_HEAD(&priv->port_list);
+ netdev->flags |= IFF_PROMISC | IFF_MASTER;
+
+ dev_alloc_name(netdev, "evb%d");
+
+ /* register switch ports */
+ snprintf(port_name, IFNAMSIZ, "%sp%%d", netdev->name);
+
+ /* only register downlinks? */
+ for (i = 0; i < priv->attr.num_ifs + 1; i++) {
+ struct net_device *port_netdev;
+ struct evb_port_priv *port_priv;
+
+ if (i) {
+ port_netdev =
+ alloc_etherdev(sizeof(struct evb_port_priv));
+ if (!port_netdev) {
+ dev_err(dev, "alloc_etherdev error\n");
+ goto err_takedown;
+ }
+
+ port_priv = netdev_priv(port_netdev);
+
+ port_netdev->flags |= IFF_PROMISC | IFF_SLAVE;
+
+ dev_alloc_name(port_netdev, port_name);
+ } else {
+ port_netdev = netdev;
+ port_priv = &priv->uplink;
+ }
+
+ port_priv->netdev = port_netdev;
+ port_priv->evb_priv = priv;
+ port_priv->port_index = i;
+
+ SET_NETDEV_DEV(port_netdev, dev);
+
+ if (i) {
+ port_netdev->netdev_ops = &evb_port_ops;
+
+ err = register_netdev(port_netdev);
+ if (err < 0) {
+ dev_err(dev, "register_netdev err %d\n", err);
+ free_netdev(port_netdev);
+ goto err_takedown;
+ }
+
+ rtnl_lock();
+ err = netdev_master_upper_dev_link(port_netdev, netdev,
+ NULL, NULL);
+ if (unlikely(err)) {
+ dev_err(dev, "netdev_master_upper_dev_link err %d\n",
+ err);
+ unregister_netdev(port_netdev);
+ free_netdev(port_netdev);
+ rtnl_unlock();
+ goto err_takedown;
+ }
+ rtmsg_ifinfo(RTM_NEWLINK, port_netdev,
+ IFF_SLAVE, GFP_KERNEL);
+ rtnl_unlock();
+
+ list_add(&port_priv->list, &priv->port_list);
+ } else {
+ /* Set MTU limits only on uplink */
+ port_netdev->min_mtu = EVB_MIN_MTU;
+ port_netdev->max_mtu = EVB_MAX_MTU;
+
+ err = register_netdev(netdev);
+
+ if (err < 0) {
+ dev_err(dev, "register_netdev error %d\n", err);
+ goto err_takedown;
+ }
+ }
+
+ port_netdev->ethtool_ops = &evb_port_ethtool_ops;
+
+ /* ports are up from init */
+ rtnl_lock();
+ err = dev_open(port_netdev);
+ rtnl_unlock();
+ if (unlikely(err))
+ dev_warn(dev, "dev_open err %d\n", err);
+ }
+
+ /* setup irqs */
+ err = evb_setup_irqs(evb_dev);
+ if (unlikely(err)) {
+ dev_warn(dev, "evb_setup_irqs err %d\n", err);
+ goto err_takedown;
+ }
+
+ dev_info(dev, "probed evb device with %d ports\n",
+ priv->attr.num_ifs);
+ return 0;
+
+err_takedown:
+ evb_remove(evb_dev);
+err_free_cmdport:
+ fsl_mc_portal_free(priv->mc_io);
+err_free_netdev:
+ return err;
+}
+
+static const struct fsl_mc_device_id evb_match_id_table[] = {
+ {
+ .vendor = FSL_MC_VENDOR_FREESCALE,
+ .obj_type = "dpdmux",
+ },
+ {}
+};
+
+static struct fsl_mc_driver evb_drv = {
+ .driver = {
+ .name = KBUILD_MODNAME,
+ .owner = THIS_MODULE,
+ },
+ .probe = evb_probe,
+ .remove = evb_remove,
+ .match_id_table = evb_match_id_table,
+};
+
+module_fsl_mc_driver(evb_drv);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Layerscape DPAA Edge Virtual Bridge driver (prototype)");
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/mac/Kconfig
@@ -0,0 +1,23 @@
+config FSL_DPAA2_MAC
+ tristate "DPAA2 MAC / PHY interface"
+ depends on FSL_MC_BUS && FSL_DPAA2
+ select MDIO_BUS_MUX_MMIOREG
+ select FSL_XGMAC_MDIO
+ select FIXED_PHY
+ ---help---
+ Prototype driver for DPAA2 MAC / PHY interface object.
+ This driver works as a proxy between phylib including phy drivers and
+ the MC firmware. It receives updates on link state changes from PHY
+ lib and forwards them to MC and receives interrupt from MC whenever
+ a request is made to change the link state.
+
+
+config FSL_DPAA2_MAC_NETDEVS
+ bool "Expose net interfaces for PHYs"
+ default n
+ depends on FSL_DPAA2_MAC
+ ---help---
+ Exposes macX net interfaces which allow direct control over MACs and
+ PHYs.
+ .
+ Leave disabled if unsure.
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/mac/Makefile
@@ -0,0 +1,10 @@
+
+obj-$(CONFIG_FSL_DPAA2_MAC) += dpaa2-mac.o
+
+dpaa2-mac-objs := mac.o dpmac.o
+
+all:
+ make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
+
+clean:
+ make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/mac/dpmac-cmd.h
@@ -0,0 +1,172 @@
+/* Copyright 2013-2016 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _FSL_DPMAC_CMD_H
+#define _FSL_DPMAC_CMD_H
+
+/* DPMAC Version */
+#define DPMAC_VER_MAJOR 4
+#define DPMAC_VER_MINOR 2
+#define DPMAC_CMD_BASE_VERSION 1
+#define DPMAC_CMD_ID_OFFSET 4
+
+#define DPMAC_CMD(id) (((id) << DPMAC_CMD_ID_OFFSET) | DPMAC_CMD_BASE_VERSION)
+
+/* Command IDs */
+#define DPMAC_CMDID_CLOSE DPMAC_CMD(0x800)
+#define DPMAC_CMDID_OPEN DPMAC_CMD(0x80c)
+#define DPMAC_CMDID_CREATE DPMAC_CMD(0x90c)
+#define DPMAC_CMDID_DESTROY DPMAC_CMD(0x98c)
+#define DPMAC_CMDID_GET_API_VERSION DPMAC_CMD(0xa0c)
+
+#define DPMAC_CMDID_GET_ATTR DPMAC_CMD(0x004)
+#define DPMAC_CMDID_RESET DPMAC_CMD(0x005)
+
+#define DPMAC_CMDID_SET_IRQ_ENABLE DPMAC_CMD(0x012)
+#define DPMAC_CMDID_GET_IRQ_ENABLE DPMAC_CMD(0x013)
+#define DPMAC_CMDID_SET_IRQ_MASK DPMAC_CMD(0x014)
+#define DPMAC_CMDID_GET_IRQ_MASK DPMAC_CMD(0x015)
+#define DPMAC_CMDID_GET_IRQ_STATUS DPMAC_CMD(0x016)
+#define DPMAC_CMDID_CLEAR_IRQ_STATUS DPMAC_CMD(0x017)
+
+#define DPMAC_CMDID_GET_LINK_CFG DPMAC_CMD(0x0c2)
+#define DPMAC_CMDID_SET_LINK_STATE DPMAC_CMD(0x0c3)
+#define DPMAC_CMDID_GET_COUNTER DPMAC_CMD(0x0c4)
+
+#define DPMAC_CMDID_SET_PORT_MAC_ADDR DPMAC_CMD(0x0c5)
+
+/* Macros for accessing command fields smaller than 1byte */
+#define DPMAC_MASK(field) \
+ GENMASK(DPMAC_##field##_SHIFT + DPMAC_##field##_SIZE - 1, \
+ DPMAC_##field##_SHIFT)
+#define dpmac_set_field(var, field, val) \
+ ((var) |= (((val) << DPMAC_##field##_SHIFT) & DPMAC_MASK(field)))
+#define dpmac_get_field(var, field) \
+ (((var) & DPMAC_MASK(field)) >> DPMAC_##field##_SHIFT)
+
+struct dpmac_cmd_open {
+ u32 dpmac_id;
+};
+
+struct dpmac_cmd_create {
+ u32 mac_id;
+};
+
+struct dpmac_cmd_destroy {
+ u32 dpmac_id;
+};
+
+struct dpmac_cmd_set_irq_enable {
+ u8 enable;
+ u8 pad[3];
+ u8 irq_index;
+};
+
+struct dpmac_cmd_get_irq_enable {
+ u32 pad;
+ u8 irq_index;
+};
+
+struct dpmac_rsp_get_irq_enable {
+ u8 enabled;
+};
+
+struct dpmac_cmd_set_irq_mask {
+ u32 mask;
+ u8 irq_index;
+};
+
+struct dpmac_cmd_get_irq_mask {
+ u32 pad;
+ u8 irq_index;
+};
+
+struct dpmac_rsp_get_irq_mask {
+ u32 mask;
+};
+
+struct dpmac_cmd_get_irq_status {
+ u32 status;
+ u8 irq_index;
+};
+
+struct dpmac_rsp_get_irq_status {
+ u32 status;
+};
+
+struct dpmac_cmd_clear_irq_status {
+ u32 status;
+ u8 irq_index;
+};
+
+struct dpmac_rsp_get_attributes {
+ u8 eth_if;
+ u8 link_type;
+ u16 id;
+ u32 max_rate;
+};
+
+struct dpmac_rsp_get_link_cfg {
+ u64 options;
+ u32 rate;
+};
+
+#define DPMAC_STATE_SIZE 1
+#define DPMAC_STATE_SHIFT 0
+
+struct dpmac_cmd_set_link_state {
+ u64 options;
+ u32 rate;
+ u32 pad;
+ /* only least significant bit is valid */
+ u8 up;
+};
+
+struct dpmac_cmd_get_counter {
+ u8 type;
+};
+
+struct dpmac_rsp_get_counter {
+ u64 pad;
+ u64 counter;
+};
+
+struct dpmac_rsp_get_api_version {
+ u16 major;
+ u16 minor;
+};
+
+struct dpmac_cmd_set_port_mac_addr {
+ u8 pad[2];
+ u8 addr[6];
+};
+
+#endif /* _FSL_DPMAC_CMD_H */
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/mac/dpmac.c
@@ -0,0 +1,619 @@
+/* Copyright 2013-2016 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <linux/fsl/mc.h>
+#include "dpmac.h"
+#include "dpmac-cmd.h"
+
+/**
+ * dpmac_open() - Open a control session for the specified object.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @dpmac_id: DPMAC unique ID
+ * @token: Returned token; use in subsequent API calls
+ *
+ * This function can be used to open a control session for an
+ * already created object; an object may have been declared in
+ * the DPL or by calling the dpmac_create function.
+ * This function returns a unique authentication token,
+ * associated with the specific object ID and the specific MC
+ * portal; this token must be used in all subsequent commands for
+ * this specific object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_open(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ int dpmac_id,
+ u16 *token)
+{
+ struct dpmac_cmd_open *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_OPEN,
+ cmd_flags,
+ 0);
+ cmd_params = (struct dpmac_cmd_open *)cmd.params;
+ cmd_params->dpmac_id = cpu_to_le32(dpmac_id);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ *token = mc_cmd_hdr_read_token(&cmd);
+
+ return err;
+}
+
+/**
+ * dpmac_close() - Close the control session of the object
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ *
+ * After this function is called, no further operations are
+ * allowed on the object without opening a new control session.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_close(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_CLOSE, cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpmac_create() - Create the DPMAC object.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @dprc_token: Parent container token; '0' for default container
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @cfg: Configuration structure
+ * @obj_id: Returned object id
+ *
+ * Create the DPMAC object, allocate required resources and
+ * perform required initialization.
+ *
+ * The function accepts an authentication token of a parent
+ * container that this object should be assigned to. The token
+ * can be '0' so the object will be assigned to the default container.
+ * The newly created object can be opened with the returned
+ * object id and using the container's associated tokens and MC portals.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_create(struct fsl_mc_io *mc_io,
+ u16 dprc_token,
+ u32 cmd_flags,
+ const struct dpmac_cfg *cfg,
+ u32 *obj_id)
+{
+ struct dpmac_cmd_create *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_CREATE,
+ cmd_flags,
+ dprc_token);
+ cmd_params = (struct dpmac_cmd_create *)cmd.params;
+ cmd_params->mac_id = cpu_to_le32(cfg->mac_id);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ *obj_id = mc_cmd_read_object_id(&cmd);
+
+ return 0;
+}
+
+/**
+ * dpmac_destroy() - Destroy the DPMAC object and release all its resources.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @dprc_token: Parent container token; '0' for default container
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @object_id: The object id; it must be a valid id within the container that
+ * created this object;
+ *
+ * The function accepts the authentication token of the parent container that
+ * created the object (not the one that currently owns the object). The object
+ * is searched within parent using the provided 'object_id'.
+ * All tokens to the object must be closed before calling destroy.
+ *
+ * Return: '0' on Success; error code otherwise.
+ */
+int dpmac_destroy(struct fsl_mc_io *mc_io,
+ u16 dprc_token,
+ u32 cmd_flags,
+ u32 object_id)
+{
+ struct dpmac_cmd_destroy *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_DESTROY,
+ cmd_flags,
+ dprc_token);
+ cmd_params = (struct dpmac_cmd_destroy *)cmd.params;
+ cmd_params->dpmac_id = cpu_to_le32(object_id);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpmac_set_irq_enable() - Set overall interrupt state.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ * @irq_index: The interrupt index to configure
+ * @en: Interrupt state - enable = 1, disable = 0
+ *
+ * Allows GPP software to control when interrupts are generated.
+ * Each interrupt can have up to 32 causes. The enable/disable control's the
+ * overall interrupt state. if the interrupt is disabled no causes will cause
+ * an interrupt.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_set_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 en)
+{
+ struct dpmac_cmd_set_irq_enable *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_SET_IRQ_ENABLE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpmac_cmd_set_irq_enable *)cmd.params;
+ cmd_params->irq_index = irq_index;
+ cmd_params->enable = en;
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpmac_get_irq_enable() - Get overall interrupt state
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ * @irq_index: The interrupt index to configure
+ * @en: Returned interrupt state - enable = 1, disable = 0
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_get_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 *en)
+{
+ struct dpmac_cmd_get_irq_enable *cmd_params;
+ struct dpmac_rsp_get_irq_enable *rsp_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_GET_IRQ_ENABLE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpmac_cmd_get_irq_enable *)cmd.params;
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpmac_rsp_get_irq_enable *)cmd.params;
+ *en = rsp_params->enabled;
+
+ return 0;
+}
+
+/**
+ * dpmac_set_irq_mask() - Set interrupt mask.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ * @irq_index: The interrupt index to configure
+ * @mask: Event mask to trigger interrupt;
+ * each bit:
+ * 0 = ignore event
+ * 1 = consider event for asserting IRQ
+ *
+ * Every interrupt can have up to 32 causes and the interrupt model supports
+ * masking/unmasking each cause independently
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_set_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 mask)
+{
+ struct dpmac_cmd_set_irq_mask *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_SET_IRQ_MASK,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpmac_cmd_set_irq_mask *)cmd.params;
+ cmd_params->mask = cpu_to_le32(mask);
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpmac_get_irq_mask() - Get interrupt mask.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ * @irq_index: The interrupt index to configure
+ * @mask: Returned event mask to trigger interrupt
+ *
+ * Every interrupt can have up to 32 causes and the interrupt model supports
+ * masking/unmasking each cause independently
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_get_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *mask)
+{
+ struct dpmac_cmd_get_irq_mask *cmd_params;
+ struct dpmac_rsp_get_irq_mask *rsp_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_GET_IRQ_MASK,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpmac_cmd_get_irq_mask *)cmd.params;
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpmac_rsp_get_irq_mask *)cmd.params;
+ *mask = le32_to_cpu(rsp_params->mask);
+
+ return 0;
+}
+
+/**
+ * dpmac_get_irq_status() - Get the current status of any pending interrupts.
+ *
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ * @irq_index: The interrupt index to configure
+ * @status: Returned interrupts status - one bit per cause:
+ * 0 = no interrupt pending
+ * 1 = interrupt pending
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_get_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *status)
+{
+ struct dpmac_cmd_get_irq_status *cmd_params;
+ struct dpmac_rsp_get_irq_status *rsp_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_GET_IRQ_STATUS,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpmac_cmd_get_irq_status *)cmd.params;
+ cmd_params->status = cpu_to_le32(*status);
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpmac_rsp_get_irq_status *)cmd.params;
+ *status = le32_to_cpu(rsp_params->status);
+
+ return 0;
+}
+
+/**
+ * dpmac_clear_irq_status() - Clear a pending interrupt's status
+ *
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ * @irq_index: The interrupt index to configure
+ * @status: Bits to clear (W1C) - one bit per cause:
+ * 0 = don't change
+ * 1 = clear status bit
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_clear_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 status)
+{
+ struct dpmac_cmd_clear_irq_status *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_CLEAR_IRQ_STATUS,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpmac_cmd_clear_irq_status *)cmd.params;
+ cmd_params->status = cpu_to_le32(status);
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpmac_get_attributes - Retrieve DPMAC attributes.
+ *
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ * @attr: Returned object's attributes
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_get_attributes(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpmac_attr *attr)
+{
+ struct dpmac_rsp_get_attributes *rsp_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_GET_ATTR,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpmac_rsp_get_attributes *)cmd.params;
+ attr->eth_if = rsp_params->eth_if;
+ attr->link_type = rsp_params->link_type;
+ attr->id = le16_to_cpu(rsp_params->id);
+ attr->max_rate = le32_to_cpu(rsp_params->max_rate);
+
+ return 0;
+}
+
+/**
+ * dpmac_get_link_cfg() - Get Ethernet link configuration
+ * @mc_io: Pointer to opaque I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ * @cfg: Returned structure with the link configuration
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_get_link_cfg(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpmac_link_cfg *cfg)
+{
+ struct dpmac_rsp_get_link_cfg *rsp_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err = 0;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_GET_LINK_CFG,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ rsp_params = (struct dpmac_rsp_get_link_cfg *)cmd.params;
+ cfg->options = le64_to_cpu(rsp_params->options);
+ cfg->rate = le32_to_cpu(rsp_params->rate);
+
+ return 0;
+}
+
+/**
+ * dpmac_set_link_state() - Set the Ethernet link status
+ * @mc_io: Pointer to opaque I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ * @link_state: Link state configuration
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_set_link_state(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpmac_link_state *link_state)
+{
+ struct dpmac_cmd_set_link_state *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_SET_LINK_STATE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpmac_cmd_set_link_state *)cmd.params;
+ cmd_params->options = cpu_to_le64(link_state->options);
+ cmd_params->rate = cpu_to_le32(link_state->rate);
+ cmd_params->up = dpmac_get_field(link_state->up, STATE);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpmac_get_counter() - Read a specific DPMAC counter
+ * @mc_io: Pointer to opaque I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ * @type: The requested counter
+ * @counter: Returned counter value
+ *
+ * Return: The requested counter; '0' otherwise.
+ */
+int dpmac_get_counter(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpmac_counter type,
+ u64 *counter)
+{
+ struct dpmac_cmd_get_counter *dpmac_cmd;
+ struct dpmac_rsp_get_counter *dpmac_rsp;
+ struct fsl_mc_command cmd = { 0 };
+ int err = 0;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_GET_COUNTER,
+ cmd_flags,
+ token);
+ dpmac_cmd = (struct dpmac_cmd_get_counter *)cmd.params;
+ dpmac_cmd->type = type;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ dpmac_rsp = (struct dpmac_rsp_get_counter *)cmd.params;
+ *counter = le64_to_cpu(dpmac_rsp->counter);
+
+ return 0;
+}
+
+/* untested */
+int dpmac_set_port_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const u8 addr[6])
+{
+ struct dpmac_cmd_set_port_mac_addr *dpmac_cmd;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_SET_PORT_MAC_ADDR,
+ cmd_flags,
+ token);
+ dpmac_cmd = (struct dpmac_cmd_set_port_mac_addr *)cmd.params;
+ dpmac_cmd->addr[0] = addr[5];
+ dpmac_cmd->addr[1] = addr[4];
+ dpmac_cmd->addr[2] = addr[3];
+ dpmac_cmd->addr[3] = addr[2];
+ dpmac_cmd->addr[4] = addr[1];
+ dpmac_cmd->addr[5] = addr[0];
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpmac_get_api_version() - Get Data Path MAC version
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @major_ver: Major version of data path mac API
+ * @minor_ver: Minor version of data path mac API
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_get_api_version(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 *major_ver,
+ u16 *minor_ver)
+{
+ struct dpmac_rsp_get_api_version *rsp_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_GET_API_VERSION,
+ cmd_flags,
+ 0);
+
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ rsp_params = (struct dpmac_rsp_get_api_version *)cmd.params;
+ *major_ver = le16_to_cpu(rsp_params->major);
+ *minor_ver = le16_to_cpu(rsp_params->minor);
+
+ return 0;
+}
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/mac/dpmac.h
@@ -0,0 +1,342 @@
+/* Copyright 2013-2016 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __FSL_DPMAC_H
+#define __FSL_DPMAC_H
+
+/* Data Path MAC API
+ * Contains initialization APIs and runtime control APIs for DPMAC
+ */
+
+struct fsl_mc_io;
+
+int dpmac_open(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ int dpmac_id,
+ u16 *token);
+
+int dpmac_close(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+/**
+ * enum dpmac_link_type - DPMAC link type
+ * @DPMAC_LINK_TYPE_NONE: No link
+ * @DPMAC_LINK_TYPE_FIXED: Link is fixed type
+ * @DPMAC_LINK_TYPE_PHY: Link by PHY ID
+ * @DPMAC_LINK_TYPE_BACKPLANE: Backplane link type
+ */
+enum dpmac_link_type {
+ DPMAC_LINK_TYPE_NONE,
+ DPMAC_LINK_TYPE_FIXED,
+ DPMAC_LINK_TYPE_PHY,
+ DPMAC_LINK_TYPE_BACKPLANE
+};
+
+/**
+ * enum dpmac_eth_if - DPMAC Ethrnet interface
+ * @DPMAC_ETH_IF_MII: MII interface
+ * @DPMAC_ETH_IF_RMII: RMII interface
+ * @DPMAC_ETH_IF_SMII: SMII interface
+ * @DPMAC_ETH_IF_GMII: GMII interface
+ * @DPMAC_ETH_IF_RGMII: RGMII interface
+ * @DPMAC_ETH_IF_SGMII: SGMII interface
+ * @DPMAC_ETH_IF_QSGMII: QSGMII interface
+ * @DPMAC_ETH_IF_XAUI: XAUI interface
+ * @DPMAC_ETH_IF_XFI: XFI interface
+ */
+enum dpmac_eth_if {
+ DPMAC_ETH_IF_MII,
+ DPMAC_ETH_IF_RMII,
+ DPMAC_ETH_IF_SMII,
+ DPMAC_ETH_IF_GMII,
+ DPMAC_ETH_IF_RGMII,
+ DPMAC_ETH_IF_SGMII,
+ DPMAC_ETH_IF_QSGMII,
+ DPMAC_ETH_IF_XAUI,
+ DPMAC_ETH_IF_XFI
+};
+
+/**
+ * struct dpmac_cfg - Structure representing DPMAC configuration
+ * @mac_id: Represents the Hardware MAC ID; in case of multiple WRIOP,
+ * the MAC IDs are continuous.
+ * For example: 2 WRIOPs, 16 MACs in each:
+ * MAC IDs for the 1st WRIOP: 1-16,
+ * MAC IDs for the 2nd WRIOP: 17-32.
+ */
+struct dpmac_cfg {
+ u16 mac_id;
+};
+
+int dpmac_create(struct fsl_mc_io *mc_io,
+ u16 dprc_token,
+ u32 cmd_flags,
+ const struct dpmac_cfg *cfg,
+ u32 *obj_id);
+
+int dpmac_destroy(struct fsl_mc_io *mc_io,
+ u16 dprc_token,
+ u32 cmd_flags,
+ u32 object_id);
+
+/**
+ * DPMAC IRQ Index and Events
+ */
+
+/**
+ * IRQ index
+ */
+#define DPMAC_IRQ_INDEX 0
+/**
+ * IRQ event - indicates a change in link state
+ */
+#define DPMAC_IRQ_EVENT_LINK_CFG_REQ 0x00000001
+/**
+ * IRQ event - Indicates that the link state changed
+ */
+#define DPMAC_IRQ_EVENT_LINK_CHANGED 0x00000002
+
+int dpmac_set_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 en);
+
+int dpmac_get_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 *en);
+
+int dpmac_set_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 mask);
+
+int dpmac_get_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *mask);
+
+int dpmac_get_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *status);
+
+int dpmac_clear_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 status);
+
+/**
+ * struct dpmac_attr - Structure representing DPMAC attributes
+ * @id: DPMAC object ID
+ * @max_rate: Maximum supported rate - in Mbps
+ * @eth_if: Ethernet interface
+ * @link_type: link type
+ */
+struct dpmac_attr {
+ u16 id;
+ u32 max_rate;
+ enum dpmac_eth_if eth_if;
+ enum dpmac_link_type link_type;
+};
+
+int dpmac_get_attributes(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpmac_attr *attr);
+
+/**
+ * DPMAC link configuration/state options
+ */
+
+/**
+ * Enable auto-negotiation
+ */
+#define DPMAC_LINK_OPT_AUTONEG 0x0000000000000001ULL
+/**
+ * Enable half-duplex mode
+ */
+#define DPMAC_LINK_OPT_HALF_DUPLEX 0x0000000000000002ULL
+/**
+ * Enable pause frames
+ */
+#define DPMAC_LINK_OPT_PAUSE 0x0000000000000004ULL
+/**
+ * Enable a-symmetric pause frames
+ */
+#define DPMAC_LINK_OPT_ASYM_PAUSE 0x0000000000000008ULL
+
+/**
+ * struct dpmac_link_cfg - Structure representing DPMAC link configuration
+ * @rate: Link's rate - in Mbps
+ * @options: Enable/Disable DPMAC link cfg features (bitmap)
+ */
+struct dpmac_link_cfg {
+ u32 rate;
+ u64 options;
+};
+
+int dpmac_get_link_cfg(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpmac_link_cfg *cfg);
+
+/**
+ * struct dpmac_link_state - DPMAC link configuration request
+ * @rate: Rate in Mbps
+ * @options: Enable/Disable DPMAC link cfg features (bitmap)
+ * @up: Link state
+ */
+struct dpmac_link_state {
+ u32 rate;
+ u64 options;
+ int up;
+};
+
+int dpmac_set_link_state(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpmac_link_state *link_state);
+
+/**
+ * enum dpmac_counter - DPMAC counter types
+ * @DPMAC_CNT_ING_FRAME_64: counts 64-bytes frames, good or bad.
+ * @DPMAC_CNT_ING_FRAME_127: counts 65- to 127-bytes frames, good or bad.
+ * @DPMAC_CNT_ING_FRAME_255: counts 128- to 255-bytes frames, good or bad.
+ * @DPMAC_CNT_ING_FRAME_511: counts 256- to 511-bytes frames, good or bad.
+ * @DPMAC_CNT_ING_FRAME_1023: counts 512- to 1023-bytes frames, good or bad.
+ * @DPMAC_CNT_ING_FRAME_1518: counts 1024- to 1518-bytes frames, good or bad.
+ * @DPMAC_CNT_ING_FRAME_1519_MAX: counts 1519-bytes frames and larger
+ * (up to max frame length specified),
+ * good or bad.
+ * @DPMAC_CNT_ING_FRAG: counts frames which are shorter than 64 bytes received
+ * with a wrong CRC
+ * @DPMAC_CNT_ING_JABBER: counts frames longer than the maximum frame length
+ * specified, with a bad frame check sequence.
+ * @DPMAC_CNT_ING_FRAME_DISCARD: counts dropped frames due to internal errors.
+ * Occurs when a receive FIFO overflows.
+ * Includes also frames truncated as a result of
+ * the receive FIFO overflow.
+ * @DPMAC_CNT_ING_ALIGN_ERR: counts frames with an alignment error
+ * (optional used for wrong SFD).
+ * @DPMAC_CNT_EGR_UNDERSIZED: counts frames transmitted that was less than 64
+ * bytes long with a good CRC.
+ * @DPMAC_CNT_ING_OVERSIZED: counts frames longer than the maximum frame length
+ * specified, with a good frame check sequence.
+ * @DPMAC_CNT_ING_VALID_PAUSE_FRAME: counts valid pause frames (regular and PFC)
+ * @DPMAC_CNT_EGR_VALID_PAUSE_FRAME: counts valid pause frames transmitted
+ * (regular and PFC).
+ * @DPMAC_CNT_ING_BYTE: counts bytes received except preamble for all valid
+ * frames and valid pause frames.
+ * @DPMAC_CNT_ING_MCAST_FRAME: counts received multicast frames.
+ * @DPMAC_CNT_ING_BCAST_FRAME: counts received broadcast frames.
+ * @DPMAC_CNT_ING_ALL_FRAME: counts each good or bad frames received.
+ * @DPMAC_CNT_ING_UCAST_FRAME: counts received unicast frames.
+ * @DPMAC_CNT_ING_ERR_FRAME: counts frames received with an error
+ * (except for undersized/fragment frame).
+ * @DPMAC_CNT_EGR_BYTE: counts bytes transmitted except preamble for all valid
+ * frames and valid pause frames transmitted.
+ * @DPMAC_CNT_EGR_MCAST_FRAME: counts transmitted multicast frames.
+ * @DPMAC_CNT_EGR_BCAST_FRAME: counts transmitted broadcast frames.
+ * @DPMAC_CNT_EGR_UCAST_FRAME: counts transmitted unicast frames.
+ * @DPMAC_CNT_EGR_ERR_FRAME: counts frames transmitted with an error.
+ * @DPMAC_CNT_ING_GOOD_FRAME: counts frames received without error, including
+ * pause frames.
+ * @DPMAC_CNT_ENG_GOOD_FRAME: counts frames transmitted without error, including
+ * pause frames.
+ */
+enum dpmac_counter {
+ DPMAC_CNT_ING_FRAME_64,
+ DPMAC_CNT_ING_FRAME_127,
+ DPMAC_CNT_ING_FRAME_255,
+ DPMAC_CNT_ING_FRAME_511,
+ DPMAC_CNT_ING_FRAME_1023,
+ DPMAC_CNT_ING_FRAME_1518,
+ DPMAC_CNT_ING_FRAME_1519_MAX,
+ DPMAC_CNT_ING_FRAG,
+ DPMAC_CNT_ING_JABBER,
+ DPMAC_CNT_ING_FRAME_DISCARD,
+ DPMAC_CNT_ING_ALIGN_ERR,
+ DPMAC_CNT_EGR_UNDERSIZED,
+ DPMAC_CNT_ING_OVERSIZED,
+ DPMAC_CNT_ING_VALID_PAUSE_FRAME,
+ DPMAC_CNT_EGR_VALID_PAUSE_FRAME,
+ DPMAC_CNT_ING_BYTE,
+ DPMAC_CNT_ING_MCAST_FRAME,
+ DPMAC_CNT_ING_BCAST_FRAME,
+ DPMAC_CNT_ING_ALL_FRAME,
+ DPMAC_CNT_ING_UCAST_FRAME,
+ DPMAC_CNT_ING_ERR_FRAME,
+ DPMAC_CNT_EGR_BYTE,
+ DPMAC_CNT_EGR_MCAST_FRAME,
+ DPMAC_CNT_EGR_BCAST_FRAME,
+ DPMAC_CNT_EGR_UCAST_FRAME,
+ DPMAC_CNT_EGR_ERR_FRAME,
+ DPMAC_CNT_ING_GOOD_FRAME,
+ DPMAC_CNT_ENG_GOOD_FRAME
+};
+
+int dpmac_get_counter(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpmac_counter type,
+ u64 *counter);
+
+/**
+ * dpmac_set_port_mac_addr() - Set a MAC address associated with the physical
+ * port. This is not used for filtering, MAC is always in
+ * promiscuous mode, it is passed to DPNIs through DPNI API for
+ * application used.
+ * @mc_io: Pointer to opaque I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ * @addr: MAC address to set
+ *
+ * Return: The requested counter; '0' otherwise.
+ */
+int dpmac_set_port_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const u8 addr[6]);
+
+int dpmac_get_api_version(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 *major_ver,
+ u16 *minor_ver);
+
+#endif /* __FSL_DPMAC_H */
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/mac/mac.c
@@ -0,0 +1,673 @@
+/* Copyright 2015 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <linux/module.h>
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/msi.h>
+#include <linux/rtnetlink.h>
+#include <linux/if_vlan.h>
+
+#include <uapi/linux/if_bridge.h>
+#include <net/netlink.h>
+
+#include <linux/of.h>
+#include <linux/of_mdio.h>
+#include <linux/of_net.h>
+#include <linux/phy.h>
+#include <linux/phy_fixed.h>
+
+#include <linux/fsl/mc.h>
+
+#include "dpmac.h"
+#include "dpmac-cmd.h"
+
+struct dpaa2_mac_priv {
+ struct net_device *netdev;
+ struct fsl_mc_device *mc_dev;
+ struct dpmac_attr attr;
+ struct dpmac_link_state old_state;
+};
+
+/* TODO: fix the 10G modes, mapping can't be right:
+ * XGMII is paralel
+ * XAUI is serial, using 8b/10b encoding
+ * XFI is also serial but using 64b/66b encoding
+ * they can't all map to XGMII...
+ *
+ * This must be kept in sync with enum dpmac_eth_if.
+ */
+static phy_interface_t dpaa2_mac_iface_mode[] = {
+ PHY_INTERFACE_MODE_MII, /* DPMAC_ETH_IF_MII */
+ PHY_INTERFACE_MODE_RMII, /* DPMAC_ETH_IF_RMII */
+ PHY_INTERFACE_MODE_SMII, /* DPMAC_ETH_IF_SMII */
+ PHY_INTERFACE_MODE_GMII, /* DPMAC_ETH_IF_GMII */
+ PHY_INTERFACE_MODE_RGMII, /* DPMAC_ETH_IF_RGMII */
+ PHY_INTERFACE_MODE_SGMII, /* DPMAC_ETH_IF_SGMII */
+ PHY_INTERFACE_MODE_QSGMII, /* DPMAC_ETH_IF_QSGMII */
+ PHY_INTERFACE_MODE_XGMII, /* DPMAC_ETH_IF_XAUI */
+ PHY_INTERFACE_MODE_XGMII, /* DPMAC_ETH_IF_XFI */
+};
+
+static void dpaa2_mac_link_changed(struct net_device *netdev)
+{
+ struct phy_device *phydev;
+ struct dpmac_link_state state = { 0 };
+ struct dpaa2_mac_priv *priv = netdev_priv(netdev);
+ int err;
+
+ /* the PHY just notified us of link state change */
+ phydev = netdev->phydev;
+
+ state.up = !!phydev->link;
+ if (phydev->link) {
+ state.rate = phydev->speed;
+
+ if (!phydev->duplex)
+ state.options |= DPMAC_LINK_OPT_HALF_DUPLEX;
+ if (phydev->autoneg)
+ state.options |= DPMAC_LINK_OPT_AUTONEG;
+
+ netif_carrier_on(netdev);
+ } else {
+ netif_carrier_off(netdev);
+ }
+
+ if (priv->old_state.up != state.up ||
+ priv->old_state.rate != state.rate ||
+ priv->old_state.options != state.options) {
+ priv->old_state = state;
+ phy_print_status(phydev);
+ }
+
+ /* We must interrogate MC at all times, because we don't know
+ * when and whether a potential DPNI may have read the link state.
+ */
+ err = dpmac_set_link_state(priv->mc_dev->mc_io, 0,
+ priv->mc_dev->mc_handle, &state);
+ if (unlikely(err))
+ dev_err(&priv->mc_dev->dev, "dpmac_set_link_state: %d\n", err);
+}
+
+static int dpaa2_mac_open(struct net_device *netdev)
+{
+ /* start PHY state machine */
+ phy_start(netdev->phydev);
+
+ return 0;
+}
+
+static int dpaa2_mac_stop(struct net_device *netdev)
+{
+ if (!netdev->phydev)
+ goto done;
+
+ /* stop PHY state machine */
+ phy_stop(netdev->phydev);
+
+ /* signal link down to firmware */
+ netdev->phydev->link = 0;
+ dpaa2_mac_link_changed(netdev);
+
+done:
+ return 0;
+}
+
+#ifdef CONFIG_FSL_DPAA2_MAC_NETDEVS
+static netdev_tx_t dpaa2_mac_drop_frame(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ /* we don't support I/O for now, drop the frame */
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+}
+
+static int dpaa2_mac_get_link_ksettings(struct net_device *netdev,
+ struct ethtool_link_ksettings *ks)
+{
+ phy_ethtool_ksettings_get(netdev->phydev, ks);
+
+ return 0;
+}
+
+static int dpaa2_mac_set_link_ksettings(struct net_device *netdev,
+ const struct ethtool_link_ksettings *ks)
+{
+ return phy_ethtool_ksettings_set(netdev->phydev, ks);
+}
+
+static struct rtnl_link_stats64 *dpaa2_mac_get_stats(struct net_device *netdev,
+ struct rtnl_link_stats64 *storage)
+{
+ struct dpaa2_mac_priv *priv = netdev_priv(netdev);
+ u64 tmp;
+ int err;
+
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_EGR_MCAST_FRAME,
+ &storage->tx_packets);
+ if (err)
+ goto error;
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_EGR_BCAST_FRAME, &tmp);
+ if (err)
+ goto error;
+ storage->tx_packets += tmp;
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_EGR_UCAST_FRAME, &tmp);
+ if (err)
+ goto error;
+ storage->tx_packets += tmp;
+
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_EGR_UNDERSIZED, &storage->tx_dropped);
+ if (err)
+ goto error;
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_EGR_BYTE, &storage->tx_bytes);
+ if (err)
+ goto error;
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_EGR_ERR_FRAME, &storage->tx_errors);
+ if (err)
+ goto error;
+
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_ING_ALL_FRAME, &storage->rx_packets);
+ if (err)
+ goto error;
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_ING_MCAST_FRAME, &storage->multicast);
+ if (err)
+ goto error;
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_ING_FRAME_DISCARD,
+ &storage->rx_dropped);
+ if (err)
+ goto error;
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_ING_ALIGN_ERR, &storage->rx_errors);
+ if (err)
+ goto error;
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_ING_OVERSIZED, &tmp);
+ if (err)
+ goto error;
+ storage->rx_errors += tmp;
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_ING_BYTE, &storage->rx_bytes);
+ if (err)
+ goto error;
+
+ return storage;
+error:
+ netdev_err(netdev, "dpmac_get_counter err %d\n", err);
+ return storage;
+}
+
+static struct {
+ enum dpmac_counter id;
+ char name[ETH_GSTRING_LEN];
+} dpaa2_mac_counters[] = {
+ {DPMAC_CNT_ING_ALL_FRAME, "rx all frames"},
+ {DPMAC_CNT_ING_GOOD_FRAME, "rx frames ok"},
+ {DPMAC_CNT_ING_ERR_FRAME, "rx frame errors"},
+ {DPMAC_CNT_ING_FRAME_DISCARD, "rx frame discards"},
+ {DPMAC_CNT_ING_UCAST_FRAME, "rx u-cast"},
+ {DPMAC_CNT_ING_BCAST_FRAME, "rx b-cast"},
+ {DPMAC_CNT_ING_MCAST_FRAME, "rx m-cast"},
+ {DPMAC_CNT_ING_FRAME_64, "rx 64 bytes"},
+ {DPMAC_CNT_ING_FRAME_127, "rx 65-127 bytes"},
+ {DPMAC_CNT_ING_FRAME_255, "rx 128-255 bytes"},
+ {DPMAC_CNT_ING_FRAME_511, "rx 256-511 bytes"},
+ {DPMAC_CNT_ING_FRAME_1023, "rx 512-1023 bytes"},
+ {DPMAC_CNT_ING_FRAME_1518, "rx 1024-1518 bytes"},
+ {DPMAC_CNT_ING_FRAME_1519_MAX, "rx 1519-max bytes"},
+ {DPMAC_CNT_ING_FRAG, "rx frags"},
+ {DPMAC_CNT_ING_JABBER, "rx jabber"},
+ {DPMAC_CNT_ING_ALIGN_ERR, "rx align errors"},
+ {DPMAC_CNT_ING_OVERSIZED, "rx oversized"},
+ {DPMAC_CNT_ING_VALID_PAUSE_FRAME, "rx pause"},
+ {DPMAC_CNT_ING_BYTE, "rx bytes"},
+ {DPMAC_CNT_ENG_GOOD_FRAME, "tx frames ok"},
+ {DPMAC_CNT_EGR_UCAST_FRAME, "tx u-cast"},
+ {DPMAC_CNT_EGR_MCAST_FRAME, "tx m-cast"},
+ {DPMAC_CNT_EGR_BCAST_FRAME, "tx b-cast"},
+ {DPMAC_CNT_EGR_ERR_FRAME, "tx frame errors"},
+ {DPMAC_CNT_EGR_UNDERSIZED, "tx undersized"},
+ {DPMAC_CNT_EGR_VALID_PAUSE_FRAME, "tx b-pause"},
+ {DPMAC_CNT_EGR_BYTE, "tx bytes"},
+
+};
+
+static void dpaa2_mac_get_strings(struct net_device *netdev,
+ u32 stringset, u8 *data)
+{
+ int i;
+
+ switch (stringset) {
+ case ETH_SS_STATS:
+ for (i = 0; i < ARRAY_SIZE(dpaa2_mac_counters); i++)
+ memcpy(data + i * ETH_GSTRING_LEN,
+ dpaa2_mac_counters[i].name,
+ ETH_GSTRING_LEN);
+ break;
+ }
+}
+
+static void dpaa2_mac_get_ethtool_stats(struct net_device *netdev,
+ struct ethtool_stats *stats,
+ u64 *data)
+{
+ struct dpaa2_mac_priv *priv = netdev_priv(netdev);
+ int i;
+ int err;
+
+ for (i = 0; i < ARRAY_SIZE(dpaa2_mac_counters); i++) {
+ err = dpmac_get_counter(priv->mc_dev->mc_io,
+ 0,
+ priv->mc_dev->mc_handle,
+ dpaa2_mac_counters[i].id, &data[i]);
+ if (err)
+ netdev_err(netdev, "dpmac_get_counter[%s] err %d\n",
+ dpaa2_mac_counters[i].name, err);
+ }
+}
+
+static int dpaa2_mac_get_sset_count(struct net_device *dev, int sset)
+{
+ switch (sset) {
+ case ETH_SS_STATS:
+ return ARRAY_SIZE(dpaa2_mac_counters);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static const struct net_device_ops dpaa2_mac_ndo_ops = {
+ .ndo_open = &dpaa2_mac_open,
+ .ndo_stop = &dpaa2_mac_stop,
+ .ndo_start_xmit = &dpaa2_mac_drop_frame,
+ .ndo_get_stats64 = &dpaa2_mac_get_stats,
+};
+
+static const struct ethtool_ops dpaa2_mac_ethtool_ops = {
+ .get_link_ksettings = &dpaa2_mac_get_link_ksettings,
+ .set_link_ksettings = &dpaa2_mac_set_link_ksettings,
+ .get_strings = &dpaa2_mac_get_strings,
+ .get_ethtool_stats = &dpaa2_mac_get_ethtool_stats,
+ .get_sset_count = &dpaa2_mac_get_sset_count,
+};
+#endif /* CONFIG_FSL_DPAA2_MAC_NETDEVS */
+
+static void configure_link(struct dpaa2_mac_priv *priv,
+ struct dpmac_link_cfg *cfg)
+{
+ struct phy_device *phydev = priv->netdev->phydev;
+
+ if (unlikely(!phydev))
+ return;
+
+ phydev->speed = cfg->rate;
+ phydev->duplex = !!(cfg->options & DPMAC_LINK_OPT_HALF_DUPLEX);
+
+ if (cfg->options & DPMAC_LINK_OPT_AUTONEG) {
+ phydev->autoneg = 1;
+ phydev->advertising |= ADVERTISED_Autoneg;
+ } else {
+ phydev->autoneg = 0;
+ phydev->advertising &= ~ADVERTISED_Autoneg;
+ }
+
+ phy_start_aneg(phydev);
+}
+
+static irqreturn_t dpaa2_mac_irq_handler(int irq_num, void *arg)
+{
+ struct device *dev = (struct device *)arg;
+ struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
+ struct dpaa2_mac_priv *priv = dev_get_drvdata(dev);
+ struct dpmac_link_cfg link_cfg;
+ u32 status;
+ int err;
+
+ err = dpmac_get_irq_status(mc_dev->mc_io, 0, mc_dev->mc_handle,
+ DPMAC_IRQ_INDEX, &status);
+ if (unlikely(err || !status))
+ return IRQ_NONE;
+
+ /* DPNI-initiated link configuration; 'ifconfig up' also calls this */
+ if (status & DPMAC_IRQ_EVENT_LINK_CFG_REQ) {
+ err = dpmac_get_link_cfg(mc_dev->mc_io, 0, mc_dev->mc_handle,
+ &link_cfg);
+ if (unlikely(err))
+ goto out;
+
+ configure_link(priv, &link_cfg);
+ }
+
+out:
+ dpmac_clear_irq_status(mc_dev->mc_io, 0, mc_dev->mc_handle,
+ DPMAC_IRQ_INDEX, status);
+
+ return IRQ_HANDLED;
+}
+
+static int setup_irqs(struct fsl_mc_device *mc_dev)
+{
+ int err = 0;
+ struct fsl_mc_device_irq *irq;
+
+ err = fsl_mc_allocate_irqs(mc_dev);
+ if (err) {
+ dev_err(&mc_dev->dev, "fsl_mc_allocate_irqs err %d\n", err);
+ return err;
+ }
+
+ irq = mc_dev->irqs[0];
+ err = devm_request_threaded_irq(&mc_dev->dev, irq->msi_desc->irq,
+ NULL, &dpaa2_mac_irq_handler,
+ IRQF_NO_SUSPEND | IRQF_ONESHOT,
+ dev_name(&mc_dev->dev), &mc_dev->dev);
+ if (err) {
+ dev_err(&mc_dev->dev, "devm_request_threaded_irq err %d\n",
+ err);
+ goto free_irq;
+ }
+
+ err = dpmac_set_irq_mask(mc_dev->mc_io, 0, mc_dev->mc_handle,
+ DPMAC_IRQ_INDEX, DPMAC_IRQ_EVENT_LINK_CFG_REQ);
+ if (err) {
+ dev_err(&mc_dev->dev, "dpmac_set_irq_mask err %d\n", err);
+ goto free_irq;
+ }
+ err = dpmac_set_irq_enable(mc_dev->mc_io, 0, mc_dev->mc_handle,
+ DPMAC_IRQ_INDEX, 1);
+ if (err) {
+ dev_err(&mc_dev->dev, "dpmac_set_irq_enable err %d\n", err);
+ goto free_irq;
+ }
+
+ return 0;
+
+free_irq:
+ fsl_mc_free_irqs(mc_dev);
+
+ return err;
+}
+
+static void teardown_irqs(struct fsl_mc_device *mc_dev)
+{
+ int err;
+
+ err = dpmac_set_irq_enable(mc_dev->mc_io, 0, mc_dev->mc_handle,
+ DPMAC_IRQ_INDEX, 0);
+ if (err)
+ dev_err(&mc_dev->dev, "dpmac_set_irq_enable err %d\n", err);
+
+ fsl_mc_free_irqs(mc_dev);
+}
+
+static struct device_node *find_dpmac_node(struct device *dev, u16 dpmac_id)
+{
+ struct device_node *dpmacs, *dpmac = NULL;
+ struct device_node *mc_node = dev->of_node;
+ u32 id;
+ int err;
+
+ dpmacs = of_find_node_by_name(mc_node, "dpmacs");
+ if (!dpmacs) {
+ dev_err(dev, "No dpmacs subnode in device-tree\n");
+ return NULL;
+ }
+
+ while ((dpmac = of_get_next_child(dpmacs, dpmac))) {
+ err = of_property_read_u32(dpmac, "reg", &id);
+ if (err)
+ continue;
+ if (id == dpmac_id)
+ return dpmac;
+ }
+
+ return NULL;
+}
+
+static int dpaa2_mac_probe(struct fsl_mc_device *mc_dev)
+{
+ struct device *dev;
+ struct dpaa2_mac_priv *priv = NULL;
+ struct device_node *phy_node, *dpmac_node;
+ struct net_device *netdev;
+ phy_interface_t if_mode;
+ int err = 0;
+
+ dev = &mc_dev->dev;
+
+ /* prepare a net_dev structure to make the phy lib API happy */
+ netdev = alloc_etherdev(sizeof(*priv));
+ if (!netdev) {
+ dev_err(dev, "alloc_etherdev error\n");
+ err = -ENOMEM;
+ goto err_exit;
+ }
+ priv = netdev_priv(netdev);
+ priv->mc_dev = mc_dev;
+ priv->netdev = netdev;
+
+ SET_NETDEV_DEV(netdev, dev);
+
+#ifdef CONFIG_FSL_DPAA2_MAC_NETDEVS
+ snprintf(netdev->name, IFNAMSIZ, "mac%d", mc_dev->obj_desc.id);
+#endif
+
+ dev_set_drvdata(dev, priv);
+
+ /* We may need to issue MC commands while in atomic context */
+ err = fsl_mc_portal_allocate(mc_dev, FSL_MC_IO_ATOMIC_CONTEXT_PORTAL,
+ &mc_dev->mc_io);
+ if (err || !mc_dev->mc_io) {
+ dev_dbg(dev, "fsl_mc_portal_allocate error: %d\n", err);
+ err = -EPROBE_DEFER;
+ goto err_free_netdev;
+ }
+
+ err = dpmac_open(mc_dev->mc_io, 0, mc_dev->obj_desc.id,
+ &mc_dev->mc_handle);
+ if (err || !mc_dev->mc_handle) {
+ dev_err(dev, "dpmac_open error: %d\n", err);
+ err = -ENODEV;
+ goto err_free_mcp;
+ }
+
+ err = dpmac_get_attributes(mc_dev->mc_io, 0,
+ mc_dev->mc_handle, &priv->attr);
+ if (err) {
+ dev_err(dev, "dpmac_get_attributes err %d\n", err);
+ err = -EINVAL;
+ goto err_close;
+ }
+
+ /* Look up the DPMAC node in the device-tree. */
+ dpmac_node = find_dpmac_node(dev, priv->attr.id);
+ if (!dpmac_node) {
+ dev_err(dev, "No dpmac@%d subnode found.\n", priv->attr.id);
+ err = -ENODEV;
+ goto err_close;
+ }
+
+ err = setup_irqs(mc_dev);
+ if (err) {
+ err = -EFAULT;
+ goto err_close;
+ }
+
+#ifdef CONFIG_FSL_DPAA2_MAC_NETDEVS
+ /* OPTIONAL, register netdev just to make it visible to the user */
+ netdev->netdev_ops = &dpaa2_mac_ndo_ops;
+ netdev->ethtool_ops = &dpaa2_mac_ethtool_ops;
+
+ /* phy starts up enabled so netdev should be up too */
+ netdev->flags |= IFF_UP;
+
+ err = register_netdev(priv->netdev);
+ if (err < 0) {
+ dev_err(dev, "register_netdev error %d\n", err);
+ err = -ENODEV;
+ goto err_free_irq;
+ }
+#endif /* CONFIG_FSL_DPAA2_MAC_NETDEVS */
+
+ /* probe the PHY as a fixed-link if there's a phy-handle defined
+ * in the device tree
+ */
+ phy_node = of_parse_phandle(dpmac_node, "phy-handle", 0);
+ if (!phy_node) {
+ goto probe_fixed_link;
+ }
+
+ if (priv->attr.eth_if < ARRAY_SIZE(dpaa2_mac_iface_mode)) {
+ if_mode = dpaa2_mac_iface_mode[priv->attr.eth_if];
+ dev_dbg(dev, "\tusing if mode %s for eth_if %d\n",
+ phy_modes(if_mode), priv->attr.eth_if);
+ } else {
+ dev_warn(dev, "Unexpected interface mode %d, will probe as fixed link\n",
+ priv->attr.eth_if);
+ goto probe_fixed_link;
+ }
+
+ /* try to connect to the PHY */
+ netdev->phydev = of_phy_connect(netdev, phy_node,
+ &dpaa2_mac_link_changed, 0, if_mode);
+ if (!netdev->phydev) {
+ /* No need for dev_err(); the kernel's loud enough as it is. */
+ dev_dbg(dev, "Can't of_phy_connect() now.\n");
+ /* We might be waiting for the MDIO MUX to probe, so defer
+ * our own probing.
+ */
+ err = -EPROBE_DEFER;
+ goto err_defer;
+ }
+ dev_info(dev, "Connected to %s PHY.\n", phy_modes(if_mode));
+
+probe_fixed_link:
+ if (!netdev->phydev) {
+ struct fixed_phy_status status = {
+ .link = 1,
+ /* fixed-phys don't support 10Gbps speed for now */
+ .speed = 1000,
+ .duplex = 1,
+ };
+
+ /* try to register a fixed link phy */
+ netdev->phydev = fixed_phy_register(PHY_POLL, &status, -1,
+ NULL);
+ if (!netdev->phydev || IS_ERR(netdev->phydev)) {
+ dev_err(dev, "error trying to register fixed PHY\n");
+ /* So we don't crash unregister_netdev() later on */
+ netdev->phydev = NULL;
+ err = -EFAULT;
+ goto err_no_phy;
+ }
+ dev_info(dev, "Registered fixed PHY.\n");
+ }
+
+ dpaa2_mac_open(netdev);
+
+ return 0;
+
+err_defer:
+err_no_phy:
+#ifdef CONFIG_FSL_DPAA2_MAC_NETDEVS
+ unregister_netdev(netdev);
+err_free_irq:
+#endif
+ teardown_irqs(mc_dev);
+err_close:
+ dpmac_close(mc_dev->mc_io, 0, mc_dev->mc_handle);
+err_free_mcp:
+ fsl_mc_portal_free(mc_dev->mc_io);
+err_free_netdev:
+ free_netdev(netdev);
+err_exit:
+ return err;
+}
+
+static int dpaa2_mac_remove(struct fsl_mc_device *mc_dev)
+{
+ struct device *dev = &mc_dev->dev;
+ struct dpaa2_mac_priv *priv = dev_get_drvdata(dev);
+ struct net_device *netdev = priv->netdev;
+
+ dpaa2_mac_stop(netdev);
+
+ if (phy_is_pseudo_fixed_link(netdev->phydev))
+ fixed_phy_unregister(netdev->phydev);
+ else
+ phy_disconnect(netdev->phydev);
+ netdev->phydev = NULL;
+
+#ifdef CONFIG_FSL_DPAA2_MAC_NETDEVS
+ unregister_netdev(priv->netdev);
+#endif
+ teardown_irqs(priv->mc_dev);
+ dpmac_close(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle);
+ fsl_mc_portal_free(priv->mc_dev->mc_io);
+ free_netdev(priv->netdev);
+
+ dev_set_drvdata(dev, NULL);
+
+ return 0;
+}
+
+static const struct fsl_mc_device_id dpaa2_mac_match_id_table[] = {
+ {
+ .vendor = FSL_MC_VENDOR_FREESCALE,
+ .obj_type = "dpmac",
+ },
+ { .vendor = 0x0 }
+};
+MODULE_DEVICE_TABLE(fslmc, dpaa2_mac_match_id_table);
+
+static struct fsl_mc_driver dpaa2_mac_drv = {
+ .driver = {
+ .name = KBUILD_MODNAME,
+ .owner = THIS_MODULE,
+ },
+ .probe = dpaa2_mac_probe,
+ .remove = dpaa2_mac_remove,
+ .match_id_table = dpaa2_mac_match_id_table,
+};
+
+module_fsl_mc_driver(dpaa2_mac_drv);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("DPAA2 PHY proxy interface driver");
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/rtc/Makefile
@@ -0,0 +1,10 @@
+
+obj-$(CONFIG_PTP_1588_CLOCK_DPAA2) += dpaa2-rtc.o
+
+dpaa2-rtc-objs := rtc.o dprtc.o
+
+all:
+ make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
+
+clean:
+ make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/rtc/dprtc-cmd.h
@@ -0,0 +1,160 @@
+/* Copyright 2013-2016 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _FSL_DPRTC_CMD_H
+#define _FSL_DPRTC_CMD_H
+
+/* DPRTC Version */
+#define DPRTC_VER_MAJOR 2
+#define DPRTC_VER_MINOR 0
+
+/* Command versioning */
+#define DPRTC_CMD_BASE_VERSION 1
+#define DPRTC_CMD_ID_OFFSET 4
+
+#define DPRTC_CMD(id) (((id) << DPRTC_CMD_ID_OFFSET) | DPRTC_CMD_BASE_VERSION)
+
+/* Command IDs */
+#define DPRTC_CMDID_CLOSE DPRTC_CMD(0x800)
+#define DPRTC_CMDID_OPEN DPRTC_CMD(0x810)
+#define DPRTC_CMDID_CREATE DPRTC_CMD(0x910)
+#define DPRTC_CMDID_DESTROY DPRTC_CMD(0x990)
+#define DPRTC_CMDID_GET_API_VERSION DPRTC_CMD(0xa10)
+
+#define DPRTC_CMDID_ENABLE DPRTC_CMD(0x002)
+#define DPRTC_CMDID_DISABLE DPRTC_CMD(0x003)
+#define DPRTC_CMDID_GET_ATTR DPRTC_CMD(0x004)
+#define DPRTC_CMDID_RESET DPRTC_CMD(0x005)
+#define DPRTC_CMDID_IS_ENABLED DPRTC_CMD(0x006)
+
+#define DPRTC_CMDID_SET_IRQ_ENABLE DPRTC_CMD(0x012)
+#define DPRTC_CMDID_GET_IRQ_ENABLE DPRTC_CMD(0x013)
+#define DPRTC_CMDID_SET_IRQ_MASK DPRTC_CMD(0x014)
+#define DPRTC_CMDID_GET_IRQ_MASK DPRTC_CMD(0x015)
+#define DPRTC_CMDID_GET_IRQ_STATUS DPRTC_CMD(0x016)
+#define DPRTC_CMDID_CLEAR_IRQ_STATUS DPRTC_CMD(0x017)
+
+#define DPRTC_CMDID_SET_CLOCK_OFFSET DPRTC_CMD(0x1d0)
+#define DPRTC_CMDID_SET_FREQ_COMPENSATION DPRTC_CMD(0x1d1)
+#define DPRTC_CMDID_GET_FREQ_COMPENSATION DPRTC_CMD(0x1d2)
+#define DPRTC_CMDID_GET_TIME DPRTC_CMD(0x1d3)
+#define DPRTC_CMDID_SET_TIME DPRTC_CMD(0x1d4)
+#define DPRTC_CMDID_SET_ALARM DPRTC_CMD(0x1d5)
+#define DPRTC_CMDID_SET_PERIODIC_PULSE DPRTC_CMD(0x1d6)
+#define DPRTC_CMDID_CLEAR_PERIODIC_PULSE DPRTC_CMD(0x1d7)
+#define DPRTC_CMDID_SET_EXT_TRIGGER DPRTC_CMD(0x1d8)
+#define DPRTC_CMDID_CLEAR_EXT_TRIGGER DPRTC_CMD(0x1d9)
+#define DPRTC_CMDID_GET_EXT_TRIGGER_TIMESTAMP DPRTC_CMD(0x1dA)
+
+/* Macros for accessing command fields smaller than 1byte */
+#define DPRTC_MASK(field) \
+ GENMASK(DPRTC_##field##_SHIFT + DPRTC_##field##_SIZE - 1, \
+ DPRTC_##field##_SHIFT)
+#define dprtc_get_field(var, field) \
+ (((var) & DPRTC_MASK(field)) >> DPRTC_##field##_SHIFT)
+
+#pragma pack(push, 1)
+struct dprtc_cmd_open {
+ uint32_t dprtc_id;
+};
+
+struct dprtc_cmd_destroy {
+ uint32_t object_id;
+};
+
+#define DPRTC_ENABLE_SHIFT 0
+#define DPRTC_ENABLE_SIZE 1
+
+struct dprtc_rsp_is_enabled {
+ uint8_t en;
+};
+
+struct dprtc_cmd_get_irq {
+ uint32_t pad;
+ uint8_t irq_index;
+};
+
+struct dprtc_cmd_set_irq_enable {
+ uint8_t en;
+ uint8_t pad[3];
+ uint8_t irq_index;
+};
+
+struct dprtc_rsp_get_irq_enable {
+ uint8_t en;
+};
+
+struct dprtc_cmd_set_irq_mask {
+ uint32_t mask;
+ uint8_t irq_index;
+};
+
+struct dprtc_rsp_get_irq_mask {
+ uint32_t mask;
+};
+
+struct dprtc_cmd_get_irq_status {
+ uint32_t status;
+ uint8_t irq_index;
+};
+
+struct dprtc_rsp_get_irq_status {
+ uint32_t status;
+};
+
+struct dprtc_cmd_clear_irq_status {
+ uint32_t status;
+ uint8_t irq_index;
+};
+
+struct dprtc_rsp_get_attributes {
+ uint32_t pad;
+ uint32_t id;
+};
+
+struct dprtc_cmd_set_clock_offset {
+ uint64_t offset;
+};
+
+struct dprtc_get_freq_compensation {
+ uint32_t freq_compensation;
+};
+
+struct dprtc_time {
+ uint64_t time;
+};
+
+struct dprtc_rsp_get_api_version {
+ uint16_t major;
+ uint16_t minor;
+};
+#pragma pack(pop)
+#endif /* _FSL_DPRTC_CMD_H */
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/rtc/dprtc.c
@@ -0,0 +1,746 @@
+/* Copyright 2013-2016 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <linux/fsl/mc.h>
+
+#include "dprtc.h"
+#include "dprtc-cmd.h"
+
+/**
+ * dprtc_open() - Open a control session for the specified object.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @dprtc_id: DPRTC unique ID
+ * @token: Returned token; use in subsequent API calls
+ *
+ * This function can be used to open a control session for an
+ * already created object; an object may have been declared in
+ * the DPL or by calling the dprtc_create function.
+ * This function returns a unique authentication token,
+ * associated with the specific object ID and the specific MC
+ * portal; this token must be used in all subsequent commands for
+ * this specific object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dprtc_open(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ int dprtc_id,
+ uint16_t *token)
+{
+ struct dprtc_cmd_open *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPRTC_CMDID_OPEN,
+ cmd_flags,
+ 0);
+ cmd_params = (struct dprtc_cmd_open *)cmd.params;
+ cmd_params->dprtc_id = cpu_to_le32(dprtc_id);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ *token = mc_cmd_hdr_read_token(&cmd);
+
+ return err;
+}
+
+/**
+ * dprtc_close() - Close the control session of the object
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPRTC object
+ *
+ * After this function is called, no further operations are
+ * allowed on the object without opening a new control session.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dprtc_close(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPRTC_CMDID_CLOSE, cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dprtc_create() - Create the DPRTC object.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @dprc_token: Parent container token; '0' for default container
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @cfg: Configuration structure
+ * @obj_id: Returned object id
+ *
+ * Create the DPRTC object, allocate required resources and
+ * perform required initialization.
+ *
+ * The function accepts an authentication token of a parent
+ * container that this object should be assigned to. The token
+ * can be '0' so the object will be assigned to the default container.
+ * The newly created object can be opened with the returned
+ * object id and using the container's associated tokens and MC portals.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dprtc_create(struct fsl_mc_io *mc_io,
+ uint16_t dprc_token,
+ uint32_t cmd_flags,
+ const struct dprtc_cfg *cfg,
+ uint32_t *obj_id)
+{
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ (void)(cfg); /* unused */
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPRTC_CMDID_CREATE,
+ cmd_flags,
+ dprc_token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ *obj_id = mc_cmd_read_object_id(&cmd);
+
+ return 0;
+}
+
+/**
+ * dprtc_destroy() - Destroy the DPRTC object and release all its resources.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @dprc_token: Parent container token; '0' for default container
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @object_id: The object id; it must be a valid id within the container that
+ * created this object;
+ *
+ * The function accepts the authentication token of the parent container that
+ * created the object (not the one that currently owns the object). The object
+ * is searched within parent using the provided 'object_id'.
+ * All tokens to the object must be closed before calling destroy.
+ *
+ * Return: '0' on Success; error code otherwise.
+ */
+int dprtc_destroy(struct fsl_mc_io *mc_io,
+ uint16_t dprc_token,
+ uint32_t cmd_flags,
+ uint32_t object_id)
+{
+ struct dprtc_cmd_destroy *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPRTC_CMDID_DESTROY,
+ cmd_flags,
+ dprc_token);
+ cmd_params = (struct dprtc_cmd_destroy *)cmd.params;
+ cmd_params->object_id = cpu_to_le32(object_id);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+int dprtc_enable(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPRTC_CMDID_ENABLE, cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+int dprtc_disable(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPRTC_CMDID_DISABLE,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+int dprtc_is_enabled(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ int *en)
+{
+ struct dprtc_rsp_is_enabled *rsp_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPRTC_CMDID_IS_ENABLED, cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dprtc_rsp_is_enabled *)cmd.params;
+ *en = dprtc_get_field(rsp_params->en, ENABLE);
+
+ return 0;
+}
+
+int dprtc_reset(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPRTC_CMDID_RESET,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dprtc_set_irq_enable() - Set overall interrupt state.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPRTC object
+ * @irq_index: The interrupt index to configure
+ * @en: Interrupt state - enable = 1, disable = 0
+ *
+ * Allows GPP software to control when interrupts are generated.
+ * Each interrupt can have up to 32 causes. The enable/disable control's the
+ * overall interrupt state. if the interrupt is disabled no causes will cause
+ * an interrupt.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dprtc_set_irq_enable(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint8_t irq_index,
+ uint8_t en)
+{
+ struct dprtc_cmd_set_irq_enable *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPRTC_CMDID_SET_IRQ_ENABLE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dprtc_cmd_set_irq_enable *)cmd.params;
+ cmd_params->irq_index = irq_index;
+ cmd_params->en = en;
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dprtc_get_irq_enable() - Get overall interrupt state
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPRTC object
+ * @irq_index: The interrupt index to configure
+ * @en: Returned interrupt state - enable = 1, disable = 0
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dprtc_get_irq_enable(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint8_t irq_index,
+ uint8_t *en)
+{
+ struct dprtc_rsp_get_irq_enable *rsp_params;
+ struct dprtc_cmd_get_irq *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPRTC_CMDID_GET_IRQ_ENABLE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dprtc_cmd_get_irq *)cmd.params;
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dprtc_rsp_get_irq_enable *)cmd.params;
+ *en = rsp_params->en;
+
+ return 0;
+}
+
+/**
+ * dprtc_set_irq_mask() - Set interrupt mask.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPRTC object
+ * @irq_index: The interrupt index to configure
+ * @mask: Event mask to trigger interrupt;
+ * each bit:
+ * 0 = ignore event
+ * 1 = consider event for asserting IRQ
+ *
+ * Every interrupt can have up to 32 causes and the interrupt model supports
+ * masking/unmasking each cause independently
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dprtc_set_irq_mask(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint8_t irq_index,
+ uint32_t mask)
+{
+ struct dprtc_cmd_set_irq_mask *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPRTC_CMDID_SET_IRQ_MASK,
+ cmd_flags,
+ token);
+ cmd_params = (struct dprtc_cmd_set_irq_mask *)cmd.params;
+ cmd_params->mask = cpu_to_le32(mask);
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dprtc_get_irq_mask() - Get interrupt mask.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPRTC object
+ * @irq_index: The interrupt index to configure
+ * @mask: Returned event mask to trigger interrupt
+ *
+ * Every interrupt can have up to 32 causes and the interrupt model supports
+ * masking/unmasking each cause independently
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dprtc_get_irq_mask(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint8_t irq_index,
+ uint32_t *mask)
+{
+ struct dprtc_rsp_get_irq_mask *rsp_params;
+ struct dprtc_cmd_get_irq *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPRTC_CMDID_GET_IRQ_MASK,
+ cmd_flags,
+ token);
+ cmd_params = (struct dprtc_cmd_get_irq *)cmd.params;
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dprtc_rsp_get_irq_mask *)cmd.params;
+ *mask = le32_to_cpu(rsp_params->mask);
+
+ return 0;
+}
+
+/**
+ * dprtc_get_irq_status() - Get the current status of any pending interrupts.
+ *
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPRTC object
+ * @irq_index: The interrupt index to configure
+ * @status: Returned interrupts status - one bit per cause:
+ * 0 = no interrupt pending
+ * 1 = interrupt pending
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dprtc_get_irq_status(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint8_t irq_index,
+ uint32_t *status)
+{
+ struct dprtc_cmd_get_irq_status *cmd_params;
+ struct dprtc_rsp_get_irq_status *rsp_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPRTC_CMDID_GET_IRQ_STATUS,
+ cmd_flags,
+ token);
+ cmd_params = (struct dprtc_cmd_get_irq_status *)cmd.params;
+ cmd_params->status = cpu_to_le32(*status);
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dprtc_rsp_get_irq_status *)cmd.params;
+ *status = rsp_params->status;
+
+ return 0;
+}
+
+/**
+ * dprtc_clear_irq_status() - Clear a pending interrupt's status
+ *
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPRTC object
+ * @irq_index: The interrupt index to configure
+ * @status: Bits to clear (W1C) - one bit per cause:
+ * 0 = don't change
+ * 1 = clear status bit
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dprtc_clear_irq_status(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint8_t irq_index,
+ uint32_t status)
+{
+ struct dprtc_cmd_clear_irq_status *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPRTC_CMDID_CLEAR_IRQ_STATUS,
+ cmd_flags,
+ token);
+ cmd_params = (struct dprtc_cmd_clear_irq_status *)cmd.params;
+ cmd_params->irq_index = irq_index;
+ cmd_params->status = cpu_to_le32(status);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dprtc_get_attributes - Retrieve DPRTC attributes.
+ *
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPRTC object
+ * @attr: Returned object's attributes
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dprtc_get_attributes(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ struct dprtc_attr *attr)
+{
+ struct dprtc_rsp_get_attributes *rsp_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPRTC_CMDID_GET_ATTR,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dprtc_rsp_get_attributes *)cmd.params;
+ attr->id = le32_to_cpu(rsp_params->id);
+
+ return 0;
+}
+
+/**
+ * dprtc_set_clock_offset() - Sets the clock's offset
+ * (usually relative to another clock).
+ *
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPRTC object
+ * @offset: New clock offset (in nanoseconds).
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dprtc_set_clock_offset(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ int64_t offset)
+{
+ struct dprtc_cmd_set_clock_offset *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPRTC_CMDID_SET_CLOCK_OFFSET,
+ cmd_flags,
+ token);
+ cmd_params = (struct dprtc_cmd_set_clock_offset *)cmd.params;
+ cmd_params->offset = cpu_to_le64(offset);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dprtc_set_freq_compensation() - Sets a new frequency compensation value.
+ *
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPRTC object
+ * @freq_compensation: The new frequency compensation value to set.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dprtc_set_freq_compensation(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint32_t freq_compensation)
+{
+ struct dprtc_get_freq_compensation *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPRTC_CMDID_SET_FREQ_COMPENSATION,
+ cmd_flags,
+ token);
+ cmd_params = (struct dprtc_get_freq_compensation *)cmd.params;
+ cmd_params->freq_compensation = cpu_to_le32(freq_compensation);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dprtc_get_freq_compensation() - Retrieves the frequency compensation value
+ *
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPRTC object
+ * @freq_compensation: Frequency compensation value
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dprtc_get_freq_compensation(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint32_t *freq_compensation)
+{
+ struct dprtc_get_freq_compensation *rsp_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPRTC_CMDID_GET_FREQ_COMPENSATION,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dprtc_get_freq_compensation *)cmd.params;
+ *freq_compensation = le32_to_cpu(rsp_params->freq_compensation);
+
+ return 0;
+}
+
+/**
+ * dprtc_get_time() - Returns the current RTC time.
+ *
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPRTC object
+ * @time: Current RTC time.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dprtc_get_time(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint64_t *time)
+{
+ struct dprtc_time *rsp_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPRTC_CMDID_GET_TIME,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dprtc_time *)cmd.params;
+ *time = le64_to_cpu(rsp_params->time);
+
+ return 0;
+}
+
+/**
+ * dprtc_set_time() - Updates current RTC time.
+ *
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPRTC object
+ * @time: New RTC time.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dprtc_set_time(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint64_t time)
+{
+ struct dprtc_time *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPRTC_CMDID_SET_TIME,
+ cmd_flags,
+ token);
+ cmd_params = (struct dprtc_time *)cmd.params;
+ cmd_params->time = cpu_to_le64(time);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dprtc_set_alarm() - Defines and sets alarm.
+ *
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPRTC object
+ * @time: In nanoseconds, the time when the alarm
+ * should go off - must be a multiple of
+ * 1 microsecond
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dprtc_set_alarm(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token, uint64_t time)
+{
+ struct dprtc_time *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPRTC_CMDID_SET_ALARM,
+ cmd_flags,
+ token);
+ cmd_params = (struct dprtc_time *)cmd.params;
+ cmd_params->time = cpu_to_le64(time);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dprtc_get_api_version() - Get Data Path Real Time Counter API version
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @major_ver: Major version of data path real time counter API
+ * @minor_ver: Minor version of data path real time counter API
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dprtc_get_api_version(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t *major_ver,
+ uint16_t *minor_ver)
+{
+ struct dprtc_rsp_get_api_version *rsp_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ cmd.header = mc_encode_cmd_header(DPRTC_CMDID_GET_API_VERSION,
+ cmd_flags,
+ 0);
+
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ rsp_params = (struct dprtc_rsp_get_api_version *)cmd.params;
+ *major_ver = le16_to_cpu(rsp_params->major);
+ *minor_ver = le16_to_cpu(rsp_params->minor);
+
+ return 0;
+}
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/rtc/dprtc.h
@@ -0,0 +1,172 @@
+/* Copyright 2013-2016 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __FSL_DPRTC_H
+#define __FSL_DPRTC_H
+
+/* Data Path Real Time Counter API
+ * Contains initialization APIs and runtime control APIs for RTC
+ */
+
+struct fsl_mc_io;
+
+/**
+ * Number of irq's
+ */
+#define DPRTC_MAX_IRQ_NUM 1
+#define DPRTC_IRQ_INDEX 0
+
+/**
+ * Interrupt event masks:
+ */
+
+/**
+ * Interrupt event mask indicating alarm event had occurred
+ */
+#define DPRTC_EVENT_ALARM 0x40000000
+/**
+ * Interrupt event mask indicating periodic pulse event had occurred
+ */
+#define DPRTC_EVENT_PPS 0x08000000
+
+int dprtc_open(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ int dprtc_id,
+ uint16_t *token);
+
+int dprtc_close(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token);
+
+/**
+ * struct dprtc_cfg - Structure representing DPRTC configuration
+ * @options: place holder
+ */
+struct dprtc_cfg {
+ uint32_t options;
+};
+
+int dprtc_create(struct fsl_mc_io *mc_io,
+ uint16_t dprc_token,
+ uint32_t cmd_flags,
+ const struct dprtc_cfg *cfg,
+ uint32_t *obj_id);
+
+int dprtc_destroy(struct fsl_mc_io *mc_io,
+ uint16_t dprc_token,
+ uint32_t cmd_flags,
+ uint32_t object_id);
+
+int dprtc_set_clock_offset(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ int64_t offset);
+
+int dprtc_set_freq_compensation(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint32_t freq_compensation);
+
+int dprtc_get_freq_compensation(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint32_t *freq_compensation);
+
+int dprtc_get_time(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint64_t *time);
+
+int dprtc_set_time(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint64_t time);
+
+int dprtc_set_alarm(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint64_t time);
+
+int dprtc_set_irq_enable(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint8_t irq_index,
+ uint8_t en);
+
+int dprtc_get_irq_enable(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint8_t irq_index,
+ uint8_t *en);
+
+int dprtc_set_irq_mask(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint8_t irq_index,
+ uint32_t mask);
+
+int dprtc_get_irq_mask(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint8_t irq_index,
+ uint32_t *mask);
+
+int dprtc_get_irq_status(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint8_t irq_index,
+ uint32_t *status);
+
+int dprtc_clear_irq_status(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint8_t irq_index,
+ uint32_t status);
+
+/**
+ * struct dprtc_attr - Structure representing DPRTC attributes
+ * @id: DPRTC object ID
+ */
+struct dprtc_attr {
+ int id;
+};
+
+int dprtc_get_attributes(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ struct dprtc_attr *attr);
+
+int dprtc_get_api_version(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t *major_ver,
+ uint16_t *minor_ver);
+
+#endif /* __FSL_DPRTC_H */
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/rtc/rtc.c
@@ -0,0 +1,242 @@
+/* Copyright 2013-2015 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <linux/module.h>
+#include <linux/ptp_clock_kernel.h>
+
+#include <linux/fsl/mc.h>
+
+#include "dprtc.h"
+#include "dprtc-cmd.h"
+
+#define N_EXT_TS 2
+
+struct ptp_clock *clock;
+struct fsl_mc_device *rtc_mc_dev;
+u32 freqCompensation;
+
+/* PTP clock operations */
+static int ptp_dpaa2_adjfreq(struct ptp_clock_info *ptp, s32 ppb)
+{
+ u64 adj;
+ u32 diff, tmr_add;
+ int neg_adj = 0;
+ int err = 0;
+ struct fsl_mc_device *mc_dev = rtc_mc_dev;
+ struct device *dev = &mc_dev->dev;
+
+ if (ppb < 0) {
+ neg_adj = 1;
+ ppb = -ppb;
+ }
+
+ tmr_add = freqCompensation;
+ adj = tmr_add;
+ adj *= ppb;
+ diff = div_u64(adj, 1000000000ULL);
+
+ tmr_add = neg_adj ? tmr_add - diff : tmr_add + diff;
+
+ err = dprtc_set_freq_compensation(mc_dev->mc_io, 0,
+ mc_dev->mc_handle, tmr_add);
+ if (err)
+ dev_err(dev, "dprtc_set_freq_compensation err %d\n", err);
+ return 0;
+}
+
+static int ptp_dpaa2_adjtime(struct ptp_clock_info *ptp, s64 delta)
+{
+ s64 now;
+ int err = 0;
+ struct fsl_mc_device *mc_dev = rtc_mc_dev;
+ struct device *dev = &mc_dev->dev;
+
+ err = dprtc_get_time(mc_dev->mc_io, 0, mc_dev->mc_handle, &now);
+ if (err) {
+ dev_err(dev, "dprtc_get_time err %d\n", err);
+ return 0;
+ }
+
+ now += delta;
+
+ err = dprtc_set_time(mc_dev->mc_io, 0, mc_dev->mc_handle, now);
+ if (err) {
+ dev_err(dev, "dprtc_set_time err %d\n", err);
+ return 0;
+ }
+ return 0;
+}
+
+static int ptp_dpaa2_gettime(struct ptp_clock_info *ptp, struct timespec *ts)
+{
+ u64 ns;
+ u32 remainder;
+ int err = 0;
+ struct fsl_mc_device *mc_dev = rtc_mc_dev;
+ struct device *dev = &mc_dev->dev;
+
+ err = dprtc_get_time(mc_dev->mc_io, 0, mc_dev->mc_handle, &ns);
+ if (err) {
+ dev_err(dev, "dprtc_get_time err %d\n", err);
+ return 0;
+ }
+
+ ts->tv_sec = div_u64_rem(ns, 1000000000, &remainder);
+ ts->tv_nsec = remainder;
+ return 0;
+}
+
+static int ptp_dpaa2_settime(struct ptp_clock_info *ptp,
+ const struct timespec *ts)
+{
+ u64 ns;
+ int err = 0;
+ struct fsl_mc_device *mc_dev = rtc_mc_dev;
+ struct device *dev = &mc_dev->dev;
+
+ ns = ts->tv_sec * 1000000000ULL;
+ ns += ts->tv_nsec;
+
+ err = dprtc_set_time(mc_dev->mc_io, 0, mc_dev->mc_handle, ns);
+ if (err)
+ dev_err(dev, "dprtc_set_time err %d\n", err);
+ return 0;
+}
+
+static struct ptp_clock_info ptp_dpaa2_caps = {
+ .owner = THIS_MODULE,
+ .name = "dpaa2 clock",
+ .max_adj = 512000,
+ .n_alarm = 0,
+ .n_ext_ts = N_EXT_TS,
+ .n_per_out = 0,
+ .n_pins = 0,
+ .pps = 1,
+ .adjfreq = ptp_dpaa2_adjfreq,
+ .adjtime = ptp_dpaa2_adjtime,
+ .gettime64 = ptp_dpaa2_gettime,
+ .settime64 = ptp_dpaa2_settime,
+};
+
+static int rtc_probe(struct fsl_mc_device *mc_dev)
+{
+ struct device *dev;
+ int err = 0;
+ int dpaa2_phc_index;
+ u32 tmr_add = 0;
+
+ if (!mc_dev)
+ return -EFAULT;
+
+ dev = &mc_dev->dev;
+
+ err = fsl_mc_portal_allocate(mc_dev, 0, &mc_dev->mc_io);
+ if (unlikely(err)) {
+ dev_err(dev, "fsl_mc_portal_allocate err %d\n", err);
+ goto err_exit;
+ }
+ if (!mc_dev->mc_io) {
+ dev_err(dev,
+ "fsl_mc_portal_allocate returned null handle but no error\n");
+ err = -EFAULT;
+ goto err_exit;
+ }
+
+ err = dprtc_open(mc_dev->mc_io, 0, mc_dev->obj_desc.id,
+ &mc_dev->mc_handle);
+ if (err) {
+ dev_err(dev, "dprtc_open err %d\n", err);
+ goto err_free_mcp;
+ }
+ if (!mc_dev->mc_handle) {
+ dev_err(dev, "dprtc_open returned null handle but no error\n");
+ err = -EFAULT;
+ goto err_free_mcp;
+ }
+
+ rtc_mc_dev = mc_dev;
+
+ err = dprtc_get_freq_compensation(mc_dev->mc_io, 0,
+ mc_dev->mc_handle, &tmr_add);
+ if (err) {
+ dev_err(dev, "dprtc_get_freq_compensation err %d\n", err);
+ goto err_close;
+ }
+ freqCompensation = tmr_add;
+
+ clock = ptp_clock_register(&ptp_dpaa2_caps, dev);
+ if (IS_ERR(clock)) {
+ err = PTR_ERR(clock);
+ goto err_close;
+ }
+ dpaa2_phc_index = ptp_clock_index(clock);
+
+ return 0;
+err_close:
+ dprtc_close(mc_dev->mc_io, 0, mc_dev->mc_handle);
+err_free_mcp:
+ fsl_mc_portal_free(mc_dev->mc_io);
+err_exit:
+ return err;
+}
+
+static int rtc_remove(struct fsl_mc_device *mc_dev)
+{
+ ptp_clock_unregister(clock);
+ dprtc_close(mc_dev->mc_io, 0, mc_dev->mc_handle);
+ fsl_mc_portal_free(mc_dev->mc_io);
+
+ return 0;
+}
+
+static const struct fsl_mc_device_id rtc_match_id_table[] = {
+ {
+ .vendor = FSL_MC_VENDOR_FREESCALE,
+ .obj_type = "dprtc",
+ },
+ {}
+};
+
+static struct fsl_mc_driver rtc_drv = {
+ .driver = {
+ .name = KBUILD_MODNAME,
+ .owner = THIS_MODULE,
+ },
+ .probe = rtc_probe,
+ .remove = rtc_remove,
+ .match_id_table = rtc_match_id_table,
+};
+
+module_fsl_mc_driver(rtc_drv);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("DPAA2 RTC (PTP 1588 clock) driver (prototype)");
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -429,12 +429,15 @@ struct sk_filter {
struct bpf_skb_data_end {
struct qdisc_skb_cb qdisc_cb;
+ void *data_meta;
void *data_end;
};
struct xdp_buff {
void *data;
void *data_end;
+ void *data_meta;
+ void *data_hard_start;
};
/* compute the linear packet data range [data, data_end) which
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