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layerscape: clean up kernel patches

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A previous patch disaggregated kernel patch 601 intending to
reverse the ndo_get_stats64 change, but it also dropped
many other changes without a reason. This caused build issue
for layerscape. This patch is to fix that with below steps.
1. Reversed patch "1c4415a layerscape: reverse changes to ndo_get_stats64",
   but kept kernel patch 701 which was a proper fix.
2. Reversed the ndo_get_stats64 change in kernel patch 601.
3. Renamed patch 601 (net patch) to 202 (core-linux patch). Maybe it's
   more proper.

Fixes: 1c4415a679 ("layerscape: reverse changes to ndo_get_stats64")
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
This commit is contained in:
Yangbo Lu 2017-11-01 16:41:08 +08:00 committed by John Crispin
parent bddffc5e7b
commit 4e209e07f7
8 changed files with 538 additions and 538 deletions
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78
target/linux/layerscape/patches-4.9/001-net-centralize-net_device-min-max-MTU-checking.patch
View file

@ -1,78 +0,0 @@
From 95b8bbff6ecf0692747622af16d917a67313f8cc Mon Sep 17 00:00:00 2001
From: Jarod Wilson <jarod@redhat.com>
Date: Fri, 7 Oct 2016 22:04:33 -0400
Subject: [PATCH] net: centralize net_device min/max MTU checking
While looking into an MTU issue with sfc, I started noticing that almost
every NIC driver with an ndo_change_mtu function implemented almost
exactly the same range checks, and in many cases, that was the only
practical thing their ndo_change_mtu function was doing. Quite a few
drivers have either 68, 64, 60 or 46 as their minimum MTU value checked,
and then various sizes from 1500 to 65535 for their maximum MTU value. We
can remove a whole lot of redundant code here if we simple store min_mtu
and max_mtu in net_device, and check against those in net/core/dev.c's
dev_set_mtu().
In theory, there should be zero functional change with this patch, it just
puts the infrastructure in place. Subsequent patches will attempt to start
using said infrastructure, with theoretically zero change in
functionality.
CC: netdev@vger.kernel.org
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 4 ++++
net/core/dev.c | 13 +++++++++++--
2 files changed, 15 insertions(+), 2 deletions(-)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 780e7171f548..2082b7d02a77 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1507,6 +1507,8 @@ enum netdev_priv_flags {
* @if_port: Selectable AUI, TP, ...
* @dma: DMA channel
* @mtu: Interface MTU value
+ * @min_mtu: Interface Minimum MTU value
+ * @max_mtu: Interface Maximum MTU value
* @type: Interface hardware type
* @hard_header_len: Maximum hardware header length.
* @min_header_len: Minimum hardware header length
@@ -1728,6 +1730,8 @@ struct net_device {
unsigned char dma;
unsigned int mtu;
+ unsigned int min_mtu;
+ unsigned int max_mtu;
unsigned short type;
unsigned short hard_header_len;
unsigned short min_header_len;
diff --git a/net/core/dev.c b/net/core/dev.c
index 2e04fd188081..c7ec56e8659a 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -6524,9 +6524,18 @@ int dev_set_mtu(struct net_device *dev, int new_mtu)
if (new_mtu == dev->mtu)
return 0;
- /* MTU must be positive. */
- if (new_mtu < 0)
+ /* MTU must be positive, and in range */
+ if (new_mtu < 0 || new_mtu < dev->min_mtu) {
+ net_err_ratelimited("%s: Invalid MTU %d requested, hw min %d\n",
+ dev->name, new_mtu, dev->min_mtu);
return -EINVAL;
+ }
+
+ if (dev->max_mtu > 0 && new_mtu > dev->max_mtu) {
+ net_err_ratelimited("%s: Invalid MTU %d requested, hw max %d\n",
+ dev->name, new_mtu, dev->min_mtu);
+ return -EINVAL;
+ }
if (!netif_device_present(dev))
return -ENODEV;
--
2.11.1

538
target/linux/layerscape/patches-4.9/202-core-linux-support-layerscape.patch Normal file
View file

@ -0,0 +1,538 @@
From c37953457a7ebeb0d97ae8574b3d41274fcd9119 Mon Sep 17 00:00:00 2001
From: Yangbo Lu <yangbo.lu@nxp.com>
Date: Wed, 1 Nov 2017 16:22:33 +0800
Subject: [PATCH] core-linux: support layerscape
This is a integrated patch for layerscape core-linux support.
Signed-off-by: Madalin Bucur <madalin.bucur@freescale.com>
Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: Zhang Ying-22455 <ying.zhang22455@nxp.com>
Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Nikhil Badola <nikhil.badola@freescale.com>
Signed-off-by: stephen hemminger <stephen@networkplumber.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
---
drivers/base/devres.c | 66 ++++++++++++++++++++++++++++
drivers/base/soc.c | 66 ++++++++++++++++++++++++++++
include/linux/device.h | 19 ++++++++
include/linux/fsl/svr.h | 97 +++++++++++++++++++++++++++++++++++++++++
include/linux/fsl_devices.h | 3 ++
include/linux/netdev_features.h | 2 +
include/linux/netdevice.h | 4 ++
include/linux/skbuff.h | 2 +
include/linux/sys_soc.h | 3 ++
include/uapi/linux/if_ether.h | 1 +
net/core/dev.c | 13 +++++-
net/core/skbuff.c | 29 +++++++++++-
net/sched/sch_generic.c | 7 +++
13 files changed, 309 insertions(+), 3 deletions(-)
create mode 100644 include/linux/fsl/svr.h
diff --git a/drivers/base/devres.c b/drivers/base/devres.c
index 8fc654f0..71d57702 100644
--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -10,6 +10,7 @@
#include <linux/device.h>
#include <linux/module.h>
#include <linux/slab.h>
+#include <linux/percpu.h>
#include "base.h"
@@ -985,3 +986,68 @@ void devm_free_pages(struct device *dev, unsigned long addr)
&devres));
}
EXPORT_SYMBOL_GPL(devm_free_pages);
+
+static void devm_percpu_release(struct device *dev, void *pdata)
+{
+ void __percpu *p;
+
+ p = *(void __percpu **)pdata;
+ free_percpu(p);
+}
+
+static int devm_percpu_match(struct device *dev, void *data, void *p)
+{
+ struct devres *devr = container_of(data, struct devres, data);
+
+ return *(void **)devr->data == p;
+}
+
+/**
+ * __devm_alloc_percpu - Resource-managed alloc_percpu
+ * @dev: Device to allocate per-cpu memory for
+ * @size: Size of per-cpu memory to allocate
+ * @align: Alignment of per-cpu memory to allocate
+ *
+ * Managed alloc_percpu. Per-cpu memory allocated with this function is
+ * automatically freed on driver detach.
+ *
+ * RETURNS:
+ * Pointer to allocated memory on success, NULL on failure.
+ */
+void __percpu *__devm_alloc_percpu(struct device *dev, size_t size,
+ size_t align)
+{
+ void *p;
+ void __percpu *pcpu;
+
+ pcpu = __alloc_percpu(size, align);
+ if (!pcpu)
+ return NULL;
+
+ p = devres_alloc(devm_percpu_release, sizeof(void *), GFP_KERNEL);
+ if (!p) {
+ free_percpu(pcpu);
+ return NULL;
+ }
+
+ *(void __percpu **)p = pcpu;
+
+ devres_add(dev, p);
+
+ return pcpu;
+}
+EXPORT_SYMBOL_GPL(__devm_alloc_percpu);
+
+/**
+ * devm_free_percpu - Resource-managed free_percpu
+ * @dev: Device this memory belongs to
+ * @pdata: Per-cpu memory to free
+ *
+ * Free memory allocated with devm_alloc_percpu().
+ */
+void devm_free_percpu(struct device *dev, void __percpu *pdata)
+{
+ WARN_ON(devres_destroy(dev, devm_percpu_release, devm_percpu_match,
+ (void *)pdata));
+}
+EXPORT_SYMBOL_GPL(devm_free_percpu);
diff --git a/drivers/base/soc.c b/drivers/base/soc.c
index b63f23e6..0c5cf872 100644
--- a/drivers/base/soc.c
+++ b/drivers/base/soc.c
@@ -13,6 +13,7 @@
#include <linux/spinlock.h>
#include <linux/sys_soc.h>
#include <linux/err.h>
+#include <linux/glob.h>
static DEFINE_IDA(soc_ida);
@@ -159,3 +160,68 @@ static int __init soc_bus_register(void)
return bus_register(&soc_bus_type);
}
core_initcall(soc_bus_register);
+
+static int soc_device_match_one(struct device *dev, void *arg)
+{
+ struct soc_device *soc_dev = container_of(dev, struct soc_device, dev);
+ const struct soc_device_attribute *match = arg;
+
+ if (match->machine &&
+ !glob_match(match->machine, soc_dev->attr->machine))
+ return 0;
+
+ if (match->family &&
+ !glob_match(match->family, soc_dev->attr->family))
+ return 0;
+
+ if (match->revision &&
+ !glob_match(match->revision, soc_dev->attr->revision))
+ return 0;
+
+ if (match->soc_id &&
+ !glob_match(match->soc_id, soc_dev->attr->soc_id))
+ return 0;
+
+ return 1;
+}
+
+/*
+ * soc_device_match - identify the SoC in the machine
+ * @matches: zero-terminated array of possible matches
+ *
+ * returns the first matching entry of the argument array, or NULL
+ * if none of them match.
+ *
+ * This function is meant as a helper in place of of_match_node()
+ * in cases where either no device tree is available or the information
+ * in a device node is insufficient to identify a particular variant
+ * by its compatible strings or other properties. For new devices,
+ * the DT binding should always provide unique compatible strings
+ * that allow the use of of_match_node() instead.
+ *
+ * The calling function can use the .data entry of the
+ * soc_device_attribute to pass a structure or function pointer for
+ * each entry.
+ */
+const struct soc_device_attribute *soc_device_match(
+ const struct soc_device_attribute *matches)
+{
+ int ret = 0;
+
+ if (!matches)
+ return NULL;
+
+ while (!ret) {
+ if (!(matches->machine || matches->family ||
+ matches->revision || matches->soc_id))
+ break;
+ ret = bus_for_each_dev(&soc_bus_type, NULL, (void *)matches,
+ soc_device_match_one);
+ if (!ret)
+ matches++;
+ else
+ return matches;
+ }
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(soc_device_match);
diff --git a/include/linux/device.h b/include/linux/device.h
index 8d732965..6d206930 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -688,6 +688,25 @@ void __iomem *devm_ioremap_resource(struct device *dev, struct resource *res);
int devm_add_action(struct device *dev, void (*action)(void *), void *data);
void devm_remove_action(struct device *dev, void (*action)(void *), void *data);
+/**
+ * devm_alloc_percpu - Resource-managed alloc_percpu
+ * @dev: Device to allocate per-cpu memory for
+ * @type: Type to allocate per-cpu memory for
+ *
+ * Managed alloc_percpu. Per-cpu memory allocated with this function is
+ * automatically freed on driver detach.
+ *
+ * RETURNS:
+ * Pointer to allocated memory on success, NULL on failure.
+ */
+#define devm_alloc_percpu(dev, type) \
+ ((typeof(type) __percpu *)__devm_alloc_percpu((dev), sizeof(type), \
+ __alignof__(type)))
+
+void __percpu *__devm_alloc_percpu(struct device *dev, size_t size,
+ size_t align);
+void devm_free_percpu(struct device *dev, void __percpu *pdata);
+
static inline int devm_add_action_or_reset(struct device *dev,
void (*action)(void *), void *data)
{
diff --git a/include/linux/fsl/svr.h b/include/linux/fsl/svr.h
new file mode 100644
index 00000000..e95c8f43
--- /dev/null
+++ b/include/linux/fsl/svr.h
@@ -0,0 +1,97 @@
+/*
+ * MPC85xx cpu type detection
+ *
+ * Copyright 2011-2012 Freescale Semiconductor, Inc.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef FSL_SVR_H
+#define FSL_SVR_H
+
+#define SVR_REV(svr) ((svr) & 0xFF) /* SOC design resision */
+#define SVR_MAJ(svr) (((svr) >> 4) & 0xF) /* Major revision field*/
+#define SVR_MIN(svr) (((svr) >> 0) & 0xF) /* Minor revision field*/
+
+/* Some parts define SVR[0:23] as the SOC version */
+#define SVR_SOC_VER(svr) (((svr) >> 8) & 0xFFF7FF) /* SOC Version fields */
+
+#define SVR_8533 0x803400
+#define SVR_8535 0x803701
+#define SVR_8536 0x803700
+#define SVR_8540 0x803000
+#define SVR_8541 0x807200
+#define SVR_8543 0x803200
+#define SVR_8544 0x803401
+#define SVR_8545 0x803102
+#define SVR_8547 0x803101
+#define SVR_8548 0x803100
+#define SVR_8555 0x807100
+#define SVR_8560 0x807000
+#define SVR_8567 0x807501
+#define SVR_8568 0x807500
+#define SVR_8569 0x808000
+#define SVR_8572 0x80E000
+#define SVR_P1010 0x80F100
+#define SVR_P1011 0x80E500
+#define SVR_P1012 0x80E501
+#define SVR_P1013 0x80E700
+#define SVR_P1014 0x80F101
+#define SVR_P1017 0x80F700
+#define SVR_P1020 0x80E400
+#define SVR_P1021 0x80E401
+#define SVR_P1022 0x80E600
+#define SVR_P1023 0x80F600
+#define SVR_P1024 0x80E402
+#define SVR_P1025 0x80E403
+#define SVR_P2010 0x80E300
+#define SVR_P2020 0x80E200
+#define SVR_P2040 0x821000
+#define SVR_P2041 0x821001
+#define SVR_P3041 0x821103
+#define SVR_P4040 0x820100
+#define SVR_P4080 0x820000
+#define SVR_P5010 0x822100
+#define SVR_P5020 0x822000
+#define SVR_P5021 0X820500
+#define SVR_P5040 0x820400
+#define SVR_T4240 0x824000
+#define SVR_T4120 0x824001
+#define SVR_T4160 0x824100
+#define SVR_T4080 0x824102
+#define SVR_C291 0x850000
+#define SVR_C292 0x850020
+#define SVR_C293 0x850030
+#define SVR_B4860 0X868000
+#define SVR_G4860 0x868001
+#define SVR_G4060 0x868003
+#define SVR_B4440 0x868100
+#define SVR_G4440 0x868101
+#define SVR_B4420 0x868102
+#define SVR_B4220 0x868103
+#define SVR_T1040 0x852000
+#define SVR_T1041 0x852001
+#define SVR_T1042 0x852002
+#define SVR_T1020 0x852100
+#define SVR_T1021 0x852101
+#define SVR_T1022 0x852102
+#define SVR_T1023 0x854100
+#define SVR_T1024 0x854000
+#define SVR_T2080 0x853000
+#define SVR_T2081 0x853100
+
+#define SVR_8610 0x80A000
+#define SVR_8641 0x809000
+#define SVR_8641D 0x809001
+
+#define SVR_9130 0x860001
+#define SVR_9131 0x860000
+#define SVR_9132 0x861000
+#define SVR_9232 0x861400
+
+#define SVR_Unknown 0xFFFFFF
+
+#endif
diff --git a/include/linux/fsl_devices.h b/include/linux/fsl_devices.h
index f2912914..22308465 100644
--- a/include/linux/fsl_devices.h
+++ b/include/linux/fsl_devices.h
@@ -99,7 +99,10 @@ struct fsl_usb2_platform_data {
unsigned suspended:1;
unsigned already_suspended:1;
unsigned has_fsl_erratum_a007792:1;
+ unsigned has_fsl_erratum_14:1;
unsigned has_fsl_erratum_a005275:1;
+ unsigned has_fsl_erratum_a006918:1;
+ unsigned has_fsl_erratum_a005697:1;
unsigned check_phy_clk_valid:1;
/* register save area for suspend/resume */
diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h
index 9c6c8ef2..90b4107e 100644
--- a/include/linux/netdev_features.h
+++ b/include/linux/netdev_features.h
@@ -74,6 +74,7 @@ enum {
NETIF_F_BUSY_POLL_BIT, /* Busy poll */
NETIF_F_HW_TC_BIT, /* Offload TC infrastructure */
+ NETIF_F_HW_ACCEL_MQ_BIT, /* Hardware-accelerated multiqueue */
/*
* Add your fresh new feature above and remember to update
@@ -136,6 +137,7 @@ enum {
#define NETIF_F_HW_L2FW_DOFFLOAD __NETIF_F(HW_L2FW_DOFFLOAD)
#define NETIF_F_BUSY_POLL __NETIF_F(BUSY_POLL)
#define NETIF_F_HW_TC __NETIF_F(HW_TC)
+#define NETIF_F_HW_ACCEL_MQ __NETIF_F(HW_ACCEL_MQ)
#define for_each_netdev_feature(mask_addr, bit) \
for_each_set_bit(bit, (unsigned long *)mask_addr, NETDEV_FEATURE_COUNT)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index c3a1537c..9740875b 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1509,6 +1509,8 @@ enum netdev_priv_flags {
* @if_port: Selectable AUI, TP, ...
* @dma: DMA channel
* @mtu: Interface MTU value
+ * @min_mtu: Interface Minimum MTU value
+ * @max_mtu: Interface Maximum MTU value
* @type: Interface hardware type
* @hard_header_len: Maximum hardware header length.
* @min_header_len: Minimum hardware header length
@@ -1735,6 +1737,8 @@ struct net_device {
unsigned char dma;
unsigned int mtu;
+ unsigned int min_mtu;
+ unsigned int max_mtu;
unsigned short type;
unsigned short hard_header_len;
unsigned short min_header_len;
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 9a0c945e..06f33c98 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -903,6 +903,7 @@ void kfree_skb(struct sk_buff *skb);
void kfree_skb_list(struct sk_buff *segs);
void skb_tx_error(struct sk_buff *skb);
void consume_skb(struct sk_buff *skb);
+void skb_recycle(struct sk_buff *skb);
void __kfree_skb(struct sk_buff *skb);
extern struct kmem_cache *skbuff_head_cache;
@@ -3057,6 +3058,7 @@ static inline void skb_free_datagram_locked(struct sock *sk,
}
int skb_kill_datagram(struct sock *sk, struct sk_buff *skb, unsigned int flags);
int skb_copy_bits(const struct sk_buff *skb, int offset, void *to, int len);
+void copy_skb_header(struct sk_buff *new, const struct sk_buff *old);
int skb_store_bits(struct sk_buff *skb, int offset, const void *from, int len);
__wsum skb_copy_and_csum_bits(const struct sk_buff *skb, int offset, u8 *to,
int len, __wsum csum);
diff --git a/include/linux/sys_soc.h b/include/linux/sys_soc.h
index 2739ccb6..9f5eb06f 100644
--- a/include/linux/sys_soc.h
+++ b/include/linux/sys_soc.h
@@ -13,6 +13,7 @@ struct soc_device_attribute {
const char *family;
const char *revision;
const char *soc_id;
+ const void *data;
};
/**
@@ -34,4 +35,6 @@ void soc_device_unregister(struct soc_device *soc_dev);
*/
struct device *soc_device_to_device(struct soc_device *soc);
+const struct soc_device_attribute *soc_device_match(
+ const struct soc_device_attribute *matches);
#endif /* __SOC_BUS_H */
diff --git a/include/uapi/linux/if_ether.h b/include/uapi/linux/if_ether.h
index 51f38442..5c01afbf 100644
--- a/include/uapi/linux/if_ether.h
+++ b/include/uapi/linux/if_ether.h
@@ -35,6 +35,7 @@
#define ETH_DATA_LEN 1500 /* Max. octets in payload */
#define ETH_FRAME_LEN 1514 /* Max. octets in frame sans FCS */
#define ETH_FCS_LEN 4 /* Octets in the FCS */
+#define ETH_MIN_MTU 68 /* Min IPv4 MTU per RFC791 */
/*
* These are the defined Ethernet Protocol ID's.
diff --git a/net/core/dev.c b/net/core/dev.c
index 512086f2..6e3bb7bc 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -6603,9 +6603,18 @@ int dev_set_mtu(struct net_device *dev, int new_mtu)
if (new_mtu == dev->mtu)
return 0;
- /* MTU must be positive. */
- if (new_mtu < 0)
+ /* MTU must be positive, and in range */
+ if (new_mtu < 0 || new_mtu < dev->min_mtu) {
+ net_err_ratelimited("%s: Invalid MTU %d requested, hw min %d\n",
+ dev->name, new_mtu, dev->min_mtu);
return -EINVAL;
+ }
+
+ if (dev->max_mtu > 0 && new_mtu > dev->max_mtu) {
+ net_err_ratelimited("%s: Invalid MTU %d requested, hw max %d\n",
+ dev->name, new_mtu, dev->min_mtu);
+ return -EINVAL;
+ }
if (!netif_device_present(dev))
return -ENODEV;
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 7e7b7ce0..0f9c014a 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -842,6 +842,32 @@ void napi_consume_skb(struct sk_buff *skb, int budget)
}
EXPORT_SYMBOL(napi_consume_skb);
+/**
+ * skb_recycle - clean up an skb for reuse
+ * @skb: buffer
+ *
+ * Recycles the skb to be reused as a receive buffer. This
+ * function does any necessary reference count dropping, and
+ * cleans up the skbuff as if it just came from __alloc_skb().
+ */
+void skb_recycle(struct sk_buff *skb)
+{
+ struct skb_shared_info *shinfo;
+ u8 head_frag = skb->head_frag;
+
+ skb_release_head_state(skb);
+
+ shinfo = skb_shinfo(skb);
+ memset(shinfo, 0, offsetof(struct skb_shared_info, dataref));
+ atomic_set(&shinfo->dataref, 1);
+
+ memset(skb, 0, offsetof(struct sk_buff, tail));
+ skb->data = skb->head + NET_SKB_PAD;
+ skb->head_frag = head_frag;
+ skb_reset_tail_pointer(skb);
+}
+EXPORT_SYMBOL(skb_recycle);
+
/* Make sure a field is enclosed inside headers_start/headers_end section */
#define CHECK_SKB_FIELD(field) \
BUILD_BUG_ON(offsetof(struct sk_buff, field) < \
@@ -1073,7 +1099,7 @@ static void skb_headers_offset_update(struct sk_buff *skb, int off)
skb->inner_mac_header += off;
}
-static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
+void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
{
__copy_skb_header(new, old);
@@ -1081,6 +1107,7 @@ static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
skb_shinfo(new)->gso_segs = skb_shinfo(old)->gso_segs;
skb_shinfo(new)->gso_type = skb_shinfo(old)->gso_type;
}
+EXPORT_SYMBOL(copy_skb_header);
static inline int skb_alloc_rx_flag(const struct sk_buff *skb)
{
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 8018dd3a..ea760b83 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -309,6 +309,13 @@ static void dev_watchdog(unsigned long arg)
txq->trans_timeout++;
break;
}
+
+ /* Devices with HW_ACCEL_MQ have multiple txqs
+ * but update only the first one's transmission
+ * timestamp so avoid checking the rest.
+ */
+ if (dev->features & NETIF_F_HW_ACCEL_MQ)
+ break;
}
if (some_queue_timedout) {
--
2.14.1

125
target/linux/layerscape/patches-4.9/303-add-devm_alloc_percpu-support.patch
View file

@ -1,125 +0,0 @@
From d33bde3c487c722541ad359e1d22090a78df0c77 Mon Sep 17 00:00:00 2001
From: Zhao Qiang <qiang.zhao@nxp.com>
Date: Tue, 11 Jul 2017 16:47:18 +0800
Subject: [PATCH] add devm_alloc_percpu support
Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
---
drivers/base/devres.c | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++
include/linux/device.h | 19 +++++++++++++++
2 files changed, 85 insertions(+)
diff --git a/drivers/base/devres.c b/drivers/base/devres.c
index 8fc654f0807b..71d577025285 100644
--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -10,6 +10,7 @@
#include <linux/device.h>
#include <linux/module.h>
#include <linux/slab.h>
+#include <linux/percpu.h>
#include "base.h"
@@ -985,3 +986,68 @@ void devm_free_pages(struct device *dev, unsigned long addr)
&devres));
}
EXPORT_SYMBOL_GPL(devm_free_pages);
+
+static void devm_percpu_release(struct device *dev, void *pdata)
+{
+ void __percpu *p;
+
+ p = *(void __percpu **)pdata;
+ free_percpu(p);
+}
+
+static int devm_percpu_match(struct device *dev, void *data, void *p)
+{
+ struct devres *devr = container_of(data, struct devres, data);
+
+ return *(void **)devr->data == p;
+}
+
+/**
+ * __devm_alloc_percpu - Resource-managed alloc_percpu
+ * @dev: Device to allocate per-cpu memory for
+ * @size: Size of per-cpu memory to allocate
+ * @align: Alignment of per-cpu memory to allocate
+ *
+ * Managed alloc_percpu. Per-cpu memory allocated with this function is
+ * automatically freed on driver detach.
+ *
+ * RETURNS:
+ * Pointer to allocated memory on success, NULL on failure.
+ */
+void __percpu *__devm_alloc_percpu(struct device *dev, size_t size,
+ size_t align)
+{
+ void *p;
+ void __percpu *pcpu;
+
+ pcpu = __alloc_percpu(size, align);
+ if (!pcpu)
+ return NULL;
+
+ p = devres_alloc(devm_percpu_release, sizeof(void *), GFP_KERNEL);
+ if (!p) {
+ free_percpu(pcpu);
+ return NULL;
+ }
+
+ *(void __percpu **)p = pcpu;
+
+ devres_add(dev, p);
+
+ return pcpu;
+}
+EXPORT_SYMBOL_GPL(__devm_alloc_percpu);
+
+/**
+ * devm_free_percpu - Resource-managed free_percpu
+ * @dev: Device this memory belongs to
+ * @pdata: Per-cpu memory to free
+ *
+ * Free memory allocated with devm_alloc_percpu().
+ */
+void devm_free_percpu(struct device *dev, void __percpu *pdata)
+{
+ WARN_ON(devres_destroy(dev, devm_percpu_release, devm_percpu_match,
+ (void *)pdata));
+}
+EXPORT_SYMBOL_GPL(devm_free_percpu);
diff --git a/include/linux/device.h b/include/linux/device.h
index bc41e87a969b..0a2135cbddc9 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -686,6 +686,25 @@ void __iomem *devm_ioremap_resource(struct device *dev, struct resource *res);
int devm_add_action(struct device *dev, void (*action)(void *), void *data);
void devm_remove_action(struct device *dev, void (*action)(void *), void *data);
+/**
+ * devm_alloc_percpu - Resource-managed alloc_percpu
+ * @dev: Device to allocate per-cpu memory for
+ * @type: Type to allocate per-cpu memory for
+ *
+ * Managed alloc_percpu. Per-cpu memory allocated with this function is
+ * automatically freed on driver detach.
+ *
+ * RETURNS:
+ * Pointer to allocated memory on success, NULL on failure.
+ */
+#define devm_alloc_percpu(dev, type) \
+ ((typeof(type) __percpu *)__devm_alloc_percpu((dev), sizeof(type), \
+ __alignof__(type)))
+
+void __percpu *__devm_alloc_percpu(struct device *dev, size_t size,
+ size_t align);
+void devm_free_percpu(struct device *dev, void __percpu *pdata);
+
static inline int devm_add_action_or_reset(struct device *dev,
void (*action)(void *), void *data)
{
--
2.11.1

66
target/linux/layerscape/patches-4.9/601-net-readd-skb_recycle.patch
View file

@ -1,66 +0,0 @@
From 9527ee5eb436ad773acc7320b372a5f4825a920d Mon Sep 17 00:00:00 2001
From: Madalin Bucur <madalin.bucur@freescale.com>
Date: Tue, 5 Jan 2016 12:12:07 +0200
Subject: [PATCH] net: readd skb_recycle()
Adding back skb_recycle() as it's used by the DPAA Ethernet driver.
This was removed from the upstream kernel because it was lacking users.
Signed-off-by: Madalin Bucur <madalin.bucur@freescale.com>
---
include/linux/skbuff.h | 1 +
net/core/skbuff.c | 26 ++++++++++++++++++++++++++
2 files changed, 27 insertions(+)
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 32810f279f8e..a52a6fb0ac2e 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -902,6 +902,7 @@ void kfree_skb(struct sk_buff *skb);
void kfree_skb_list(struct sk_buff *segs);
void skb_tx_error(struct sk_buff *skb);
void consume_skb(struct sk_buff *skb);
+void skb_recycle(struct sk_buff *skb);
void __kfree_skb(struct sk_buff *skb);
extern struct kmem_cache *skbuff_head_cache;
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index fe008f1bd930..ab1038083df2 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -825,6 +825,32 @@ void napi_consume_skb(struct sk_buff *skb, int budget)
}
EXPORT_SYMBOL(napi_consume_skb);
+/**
+ * skb_recycle - clean up an skb for reuse
+ * @skb: buffer
+ *
+ * Recycles the skb to be reused as a receive buffer. This
+ * function does any necessary reference count dropping, and
+ * cleans up the skbuff as if it just came from __alloc_skb().
+ */
+void skb_recycle(struct sk_buff *skb)
+{
+ struct skb_shared_info *shinfo;
+ u8 head_frag = skb->head_frag;
+
+ skb_release_head_state(skb);
+
+ shinfo = skb_shinfo(skb);
+ memset(shinfo, 0, offsetof(struct skb_shared_info, dataref));
+ atomic_set(&shinfo->dataref, 1);
+
+ memset(skb, 0, offsetof(struct sk_buff, tail));
+ skb->data = skb->head + NET_SKB_PAD;
+ skb->head_frag = head_frag;
+ skb_reset_tail_pointer(skb);
+}
+EXPORT_SYMBOL(skb_recycle);
+
/* Make sure a field is enclosed inside headers_start/headers_end section */
#define CHECK_SKB_FIELD(field) \
BUILD_BUG_ON(offsetof(struct sk_buff, field) < \
--
2.11.1

47
target/linux/layerscape/patches-4.9/602-linux-core-export-copy_skb_header-function.patch
View file

@ -1,47 +0,0 @@
From eae03a91605fd7dccb1de11053efee87db398df3 Mon Sep 17 00:00:00 2001
From: Zhang Ying-22455 <ying.zhang22455@nxp.com>
Date: Fri, 1 Sep 2017 14:56:01 +0800
Subject: [PATCH] linux/core: export copy_skb_header() function
Signed-off-by: Camelia Groza camelia.groza@nxp.com
---
include/linux/skbuff.h | 1 +
net/core/skbuff.c | 3 ++-
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index a52a6fb0ac2e..a0385f9bdd4e 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -3063,6 +3063,7 @@ static inline void skb_free_datagram_locked(struct sock *sk,
}
int skb_kill_datagram(struct sock *sk, struct sk_buff *skb, unsigned int flags);
int skb_copy_bits(const struct sk_buff *skb, int offset, void *to, int len);
+void copy_skb_header(struct sk_buff *new, const struct sk_buff *old);
int skb_store_bits(struct sk_buff *skb, int offset, const void *from, int len);
__wsum skb_copy_and_csum_bits(const struct sk_buff *skb, int offset, u8 *to,
int len, __wsum csum);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index ab1038083df2..2684c49b9805 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1082,7 +1082,7 @@ static void skb_headers_offset_update(struct sk_buff *skb, int off)
skb->inner_mac_header += off;
}
-static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
+void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
{
__copy_skb_header(new, old);
@@ -1090,6 +1090,7 @@ static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
skb_shinfo(new)->gso_segs = skb_shinfo(old)->gso_segs;
skb_shinfo(new)->gso_type = skb_shinfo(old)->gso_type;
}
+EXPORT_SYMBOL(copy_skb_header);
static inline int skb_alloc_rx_flag(const struct sk_buff *skb)
{
--
2.11.1

60
target/linux/layerscape/patches-4.9/603-sdk_dpaa-update-the-xmit-timestamp-to-avoid-watchdog.patch
View file

@ -1,60 +0,0 @@
From 3d33284eb087deb7f62639a2d2c03b9d0a3eeb34 Mon Sep 17 00:00:00 2001
From: Camelia Groza <camelia.groza@nxp.com>
Date: Mon, 11 Sep 2017 17:20:41 +0800
Subject: [PATCH] sdk_dpaa: update the xmit timestamp to avoid watchdog
timeouts
[core-linux part]
Update txq0's trans_start in order to prevent the netdev watchdog from
triggering too quickly. Since we set the LLTX flag, the stack won't update
the jiffies for other tx queues. Prevent the watchdog from checking the
other tx queues by adding the NETIF_HW_ACCEL_MQ flag.
Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
---
include/linux/netdev_features.h | 2 ++
net/sched/sch_generic.c | 7 +++++++
2 files changed, 9 insertions(+)
diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h
index 9c6c8ef2e9e7..90b4107ebeff 100644
--- a/include/linux/netdev_features.h
+++ b/include/linux/netdev_features.h
@@ -74,6 +74,7 @@ enum {
NETIF_F_BUSY_POLL_BIT, /* Busy poll */
NETIF_F_HW_TC_BIT, /* Offload TC infrastructure */
+ NETIF_F_HW_ACCEL_MQ_BIT, /* Hardware-accelerated multiqueue */
/*
* Add your fresh new feature above and remember to update
@@ -136,6 +137,7 @@ enum {
#define NETIF_F_HW_L2FW_DOFFLOAD __NETIF_F(HW_L2FW_DOFFLOAD)
#define NETIF_F_BUSY_POLL __NETIF_F(BUSY_POLL)
#define NETIF_F_HW_TC __NETIF_F(HW_TC)
+#define NETIF_F_HW_ACCEL_MQ __NETIF_F(HW_ACCEL_MQ)
#define for_each_netdev_feature(mask_addr, bit) \
for_each_set_bit(bit, (unsigned long *)mask_addr, NETDEV_FEATURE_COUNT)
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 6cfb6e9038c2..3fab16cb7c58 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -309,6 +309,13 @@ static void dev_watchdog(unsigned long arg)
txq->trans_timeout++;
break;
}
+
+ /* Devices with HW_ACCEL_MQ have multiple txqs
+ * but update only the first one's transmission
+ * timestamp so avoid checking the rest.
+ */
+ if (dev->features & NETIF_F_HW_ACCEL_MQ)
+ break;
}
if (some_queue_timedout) {
--
2.11.1

0
target/linux/layerscape/patches-4.9/821-guts-support-layerscape.patch → target/linux/layerscape/patches-4.9/808-guts-support-layerscape.patch
View file

162
target/linux/layerscape/patches-4.9/820-base-soc-Introduce-soc_device_match-interface.patch
View file

@ -1,162 +0,0 @@
From c97db7cc7778e34a53b42d58c766f0ec0e30d580 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Wed, 21 Sep 2016 14:57:19 +0800
Subject: [PATCH] base: soc: Introduce soc_device_match() interface
We keep running into cases where device drivers want to know the exact
version of the a SoC they are currently running on. In the past, this has
usually been done through a vendor specific API that can be called by a
driver, or by directly accessing some kind of version register that is
not part of the device itself but that belongs to a global register area
of the chip.
Common reasons for doing this include:
- A machine is not using devicetree or similar for passing data about
on-chip devices, but just announces their presence using boot-time
platform devices, and the machine code itself does not care about the
revision.
- There is existing firmware or boot loaders with existing DT binaries
with generic compatible strings that do not identify the particular
revision of each device, but the driver knows which SoC revisions
include which part.
- A prerelease version of a chip has some quirks and we are using the same
version of the bootloader and the DT blob on both the prerelease and the
final version. An update of the DT binding seems inappropriate because
that would involve maintaining multiple copies of the dts and/or
bootloader.
This patch introduces the soc_device_match() interface that is meant to
work like of_match_node() but instead of identifying the version of a
device, it identifies the SoC itself using a vendor-agnostic interface.
Unlike of_match_node(), we do not do an exact string compare but instead
use glob_match() to allow wildcards in strings.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/base/Kconfig | 1 +
drivers/base/soc.c | 66 +++++++++++++++++++++++++++++++++++++++++++++++++
include/linux/sys_soc.h | 3 +++
3 files changed, 70 insertions(+)
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index fdf44cac08e6..991b21e1f89b 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -235,6 +235,7 @@ config GENERIC_CPU_AUTOPROBE
config SOC_BUS
bool
+ select GLOB
source "drivers/base/regmap/Kconfig"
diff --git a/drivers/base/soc.c b/drivers/base/soc.c
index 028cef377fd4..04ee597fc3a3 100644
--- a/drivers/base/soc.c
+++ b/drivers/base/soc.c
@@ -13,6 +13,7 @@
#include <linux/spinlock.h>
#include <linux/sys_soc.h>
#include <linux/err.h>
+#include <linux/glob.h>
static DEFINE_IDA(soc_ida);
@@ -168,3 +169,68 @@ static int __init soc_bus_register(void)
return bus_register(&soc_bus_type);
}
core_initcall(soc_bus_register);
+
+static int soc_device_match_one(struct device *dev, void *arg)
+{
+ struct soc_device *soc_dev = container_of(dev, struct soc_device, dev);
+ const struct soc_device_attribute *match = arg;
+
+ if (match->machine &&
+ !glob_match(match->machine, soc_dev->attr->machine))
+ return 0;
+
+ if (match->family &&
+ !glob_match(match->family, soc_dev->attr->family))
+ return 0;
+
+ if (match->revision &&
+ !glob_match(match->revision, soc_dev->attr->revision))
+ return 0;
+
+ if (match->soc_id &&
+ !glob_match(match->soc_id, soc_dev->attr->soc_id))
+ return 0;
+
+ return 1;
+}
+
+/*
+ * soc_device_match - identify the SoC in the machine
+ * @matches: zero-terminated array of possible matches
+ *
+ * returns the first matching entry of the argument array, or NULL
+ * if none of them match.
+ *
+ * This function is meant as a helper in place of of_match_node()
+ * in cases where either no device tree is available or the information
+ * in a device node is insufficient to identify a particular variant
+ * by its compatible strings or other properties. For new devices,
+ * the DT binding should always provide unique compatible strings
+ * that allow the use of of_match_node() instead.
+ *
+ * The calling function can use the .data entry of the
+ * soc_device_attribute to pass a structure or function pointer for
+ * each entry.
+ */
+const struct soc_device_attribute *soc_device_match(
+ const struct soc_device_attribute *matches)
+{
+ int ret = 0;
+
+ if (!matches)
+ return NULL;
+
+ while (!ret) {
+ if (!(matches->machine || matches->family ||
+ matches->revision || matches->soc_id))
+ break;
+ ret = bus_for_each_dev(&soc_bus_type, NULL, (void *)matches,
+ soc_device_match_one);
+ if (!ret)
+ matches++;
+ else
+ return matches;
+ }
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(soc_device_match);
diff --git a/include/linux/sys_soc.h b/include/linux/sys_soc.h
index 2739ccb69571..9f5eb06f9fd8 100644
--- a/include/linux/sys_soc.h
+++ b/include/linux/sys_soc.h
@@ -13,6 +13,7 @@ struct soc_device_attribute {
const char *family;
const char *revision;
const char *soc_id;
+ const void *data;
};
/**
@@ -34,4 +35,6 @@ void soc_device_unregister(struct soc_device *soc_dev);
*/
struct device *soc_device_to_device(struct soc_device *soc);
+const struct soc_device_attribute *soc_device_match(
+ const struct soc_device_attribute *matches);
#endif /* __SOC_BUS_H */
--
2.11.1