Commit graph

18516 commits

Author SHA1 Message Date
Daniel Danzberger
653af8ffd3 kernel: fix forwarding locally generated packages in bridge isolation patch
Locally generated packets weren't forwarded to the isolated interfaces in a
bridge. Isolation should only prevent the flooding of incomming packets to
other interfaces in the bridge.

Signed-off-by: Daniel Danzberger <daniel@dd-wrt.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-02-05 10:16:26 +01:00
Felix Fietkau
d3ea5fc9f3 ramips: use napi_alloc_frag and skb_free_frag
Slightly improves rx performance

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-02-05 10:16:26 +01:00
Felix Fietkau
968b861612 ramips: improve NAPI polling to increase GRO batch size
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-02-05 10:16:26 +01:00
Felix Fietkau
798497c66e ar71xx: use global timestamp for hang check
Shrink the size of struct ag71xx_buf to 8 bytes, which improves cache
footprint

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-02-05 10:16:25 +01:00
Felix Fietkau
31e6016d2e ar71xx: only access device stats in tx handler if packets were processed
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-02-05 10:16:25 +01:00
Felix Fietkau
890e7458b0 ar71xx: allocate rx/tx descriptor/buffers in one chunk
Reduces false sharing due to cache aliases

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-02-05 10:16:25 +01:00
Rosen Penev
4e03a742e0 ag71xx: Reorder ag71xx struct members for better cache performance
Qualcomm claims this improves the D-cache footprint. Origina commit message below:

From: Ben Menchaca <ben.menchaca@qca.qualcomm.com>
Date: Fri, 7 Jun 2013 10:57:28 -0500
Subject: [ag71xx] cluster/align structs for cache perf

Cluster the frequently used, per-packet structures in ag71xx near
to each other, and cacheline-align them.  Some other re-ordering
occurred to move "warmer" structures near the per-packet structures.

Signed-off-by: Ben Menchaca <ben.menchaca@qca.qualcomm.com>
Signed-off-by: Rosen Penev <rosenp@gmail.com>
2018-02-05 10:16:25 +01:00
Felix Fietkau
cde71a543c build: replace uses of OpenWrt with $(VERSION_DIST)
This makes the distribution name more configurable.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-02-05 10:15:53 +01:00
Matthias Schiffer
0c719bfcaf
ar71xx: /lib/ar71xx.sh: add model detection for TP-Link TL-WR810N
Properly report the revision in /tmp/sysinfo/model.

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
2018-02-03 14:13:26 +01:00
Matthias Schiffer
3f7908d697
ar71xx-generic: enable ATH79_MACH_TL_WR841N_V8 machine
This machfile also contains the code for the TL-WR842N/ND v2, which is in
ar71xx-generic and not in ar71xx-tiny.

Fixes: 0cd5e85e7a "ar71xx: create new ar71xx/tiny subtarget for 4MB flash
devices"
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
2018-01-31 21:18:16 +01:00
Yousong Zhou
82ceb2ad2a build: add config option KERNEL_MIPS_FPU_EMULATOR
To make it more accessible for nodejs users to configure and run a build
on mips target lacking hardware fpu

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
2018-01-29 15:06:53 +08:00
Catrinel Catrinescu
4ba2dd130a ar71xx: add ew-balin platform from Embedded Wireless
Add the Embedded Wireless "Balin" platform
 SoC: QCA AR9344 or AR9350
 RAM: DDR2-RAM 64MBytes
 Flash: SPI-NOR 16MBytes
 WLAN: 2 x 2 MIMO 2.4 & 5 GHz IEEE802.11 a/b/g/n
 Ethernet: 3 x 10/100 Mb/s
 USB: 1 x USB2.0 Host/Device bootstrap-pin at power-up
 PCI-Express: 1 x lane PCIe 1.2
 UART: 1 x Normal, 1 x High-Speed
 JTAG: 1 x EJTAG
 GPIO: 10 x Input/Output multiplexed

The module comes already with the current vanilla OpenWrt firmware.
To update, use "sysupgrade" image directly in vendor firmware.

Signed-off-by: Catrinel Catrinescu <cc@80211.de>
2018-01-25 16:50:08 +01:00
Matthias Schiffer
ad4232e3e9
ar71xx: add unaligned access hacks for VXLAN
Gives a ~5% performance gain.

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
2018-01-25 11:00:48 +01:00
Jackson Ming Hu
21d3643828 ramips: add support for Widora Neo 32MB flash revision
Widora has updated their Widora Neo board recently.

The new model uses 32MB WSON-8 factor SPI flash
instead of the original 16MB SOP-8 factor SPI flash.

All the other hardware components are the same as
the first revision.

Detailed hardware specs listed below:

CPU: MTK MT7688AN
RAM: 128MB DDR2
ROM: 32MB WSON-8 factor SPI Flash (Winbond)
WiFi: Built-in 802.11n 150Mbps?
Ethernet: 10/100Mbps x1
Audio codec: WM8960
Other IO: USB OTG;
	  USB Power+Serial (CP2104);
	  3x LEDs (Power, LAN, WiFi);
	  2x Keys (WPS, CPU Reset)
	  1x Audio In/Out
	  1x IPEX antenna port
	  1x Micro SD slot

Signed-off-by: Jackson Ming Hu <huming2207@gmail.com>
Signed-off-by: Mathias Kresin <dev@kresin.me>
2018-01-23 23:31:09 +01:00
Mathias Kresin
a411881a40 ramips: add flash size postfix to Widora neo
Rename the Widora neo by adding a flash size prefix. Move the common parts
into a dtsi to be prepare everything for upcomming support of the 32MB
version.

Migrate the Widora neo to the generic board detection as well.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2018-01-23 23:31:09 +01:00
Hans Dedecker
6f425a28a4 kernel: generic: add 4.9 config option
When CGROUPS is enabled the new option CONFIG_CGROUP_NET_CLASSID is
selectable and not handled.
Add this option to the 4.9 kernel configuration.

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2018-01-24 17:05:15 +01:00
Rosen Penev
c25d9cbde8 ramips: Fix GB-PC1 cpuclock again
The intended frequency is 900 MHz, not 90.

Fixes: 7059ab48a6 ("ramips: fix cpuclock for the GB-PC1")
Signed-off-by: Rosen Penev <rosenp@gmail.com>
2018-01-24 07:33:42 +01:00
Daniel Golle
059b2f5481 ar71xx: fix MikroTik rb-nor-flash-16M-ac image
commit e15c63a375
ar71xx: add support for MikroTik RouterBOARD wAP G-5HacT2HnD (wAP AC)

changed the existing rb-nor-flash-16M-ac image in a way that it would
now only support the rb-wapg-5hact2hnd.
The board show however rather be added to the existing boards in the
rb-nor-flash-16M image template.

Reported-by: Mathias Kresin <dev@kresin.me>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2018-01-24 01:24:39 +01:00
Daniel Golle
9c4fe103cb ramips: add support for ZBT-WE1226
MT7628NN (580MHz), 8MB SPI NOR, 64MB DDR2 RAM

Everything except for the switch LEDs works great.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2018-01-23 02:56:57 +01:00
Hauke Mehrtens
b33c3e1b7c sunxi: Orange Pi R1: configure USB Ethernet controller.
Now the USB port is the WAN port.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2018-01-22 22:59:38 +01:00
Hauke Mehrtens
40db7a9dec sunxi: Orange Pi R1: Fix USB Ethernet and activate SPI
The USB Ethernet is not working with the patches proposed for upstream,
fix this and activate the SPI node as this board always has a SPI flash.

Both patches are also targeted for upstream kernel 4.16 and 4.17.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2018-01-22 22:59:38 +01:00
Hauke Mehrtens
75f7c1c9ac sunxi: use upstream patch for Orange Pi R1
Instead of using our own device tree definitions use the one provided in
the upstream kernel for 4.16.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2018-01-22 22:54:17 +01:00
Hauke Mehrtens
b1c82cbd51 sunxi: backport stmmac network patches
Ethernet support was initial added in kernel 4.13, but deactivated
before the final release. This is backports the changes which are
activating it again from kernel 4.15.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2018-01-22 22:54:17 +01:00
Hauke Mehrtens
ad2b3bf310 sunxi: Add support for kernel 4.14
This is based on the code for kernel 4.9, but a lot of 4.9 patches are
backports from more recent kernel version and can be removed now.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2018-01-22 22:51:02 +01:00
Hauke Mehrtens
dda475ca30 sunxi: refresh kernel configuration
Just refresh the sunxi kernel configuration.
This also moves the CONFIG_CRYPTO_DEV_SUN4I_SS_PRNG option to the
config-4.9 file.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2018-01-22 22:49:59 +01:00
Gabor Juhos
eb9e3651dd ar71xx: add support for the MikroTik RB911-2Hn/5Hn boards
The patch adds support for the MikroTik RB911-2Hn (911 Lite2)
and the RB911-5Hn (911 Lite5) boards:

  https://mikrotik.com/product/RB911-2Hn
  https://mikrotik.com/product/RB911-5Hn

The two boards are using the same hardware design, the only difference
between the two is the supported wireless band.

Specifications:
  * SoC: Atheros AR9344 (600MHz)
  * RAM: 64MiB
  * Storage: 16 MiB SPI NOR flash
  * Ethernet: 1x100M (Passive PoE in)
  * Wireless: AR9344 built-in wireless MAC, single chain
              802.11b/g/n (911-2Hn) or 802.11a/g/n (911-5Hn)

Notes:
  * Older versions of these boards might be equipped with a NAND
    flash chip instead of the SPI NOR device. Those boards are not
    supported (yet).
  * The MikroTik RB911-5HnD (911 Lite5 Dual) board also uses the
    same hardware. Support for that can be added later with little
    effort probably.

Installation:

1. Setup a DHCP/BOOTP Server with the following parameters:
   * DHCP-Option 66 (TFTP server name): pointing to a local TFTP
     server within the same subnet of the DHCP range
   * DHCP-Option 67 (Bootfile-Name): matching the initramfs filename
     of the to be booted image. The usable intramfs files are:
       - openwrt-ar71xx-mikrotik-vmlinux-initramfs.elf
       - openwrt-ar71xx-mikrotik-vmlinux-initramfs-lzma.elf
       - openwrt-ar71xx-mikrotik-rb-nor-flash-16M-initramfs-kernel.bin

2. Press the reset button on the board and keep that pressed.

3. Connect the board to your local network via its ethernet port.

4. Release the button after the LEDs on the board are turned off.
   Now the board should load and start the initramfs image from
   the TFTP server.

5. Upload the sysupgrade image to the board with scp:
     $ scp openwrt-ar71xx-mikrotik-rb-nor-flash-16M-squashfs-sysupgrade.bin root@192.168.1.1:/tmp/fw.bin

5. Log in to the running system listening on 192.168.1.1 via ssh
   as root (without password):
     $ ssh root@192.168.1.1

7. Flash the uploaded firmware file from the ssh session via the
   sysupgrade command:
     root@OpenWrt:~# sysupgrade /tmp/fw.bin

Signed-off-by: Gabor Juhos <juhosg@freemail.hu>
2018-01-22 10:53:45 +01:00
Gabor Juhos
a4320b3332 ar71xx: make leds-gpio usable with single-ended GPIOs
Add patches for the leds-gpio driver to make it usable with
open-drain and open-source kind of GPIO lines.

This type of functionality is required by various MikroTik boards.

Signed-off-by: Gabor Juhos <juhosg@freemail.hu>
2018-01-22 10:53:32 +01:00
Gabor Juhos
e379e60b17 ar71xx: mach-rbspi: return rb_info from rbspi_platform_setup
Modify the rbspi_platform_setup() function to return the pointer of the
rb_info structure. This allows board specific setup routines to access
the various fields of the information. It is useful for investigating
the hardware option bits for example.

Also update the board setup codes, to ensure that those handle the new
return value correctly.

Signed-off-by: Gabor Juhos <juhosg@freemail.hu>
2018-01-22 10:53:16 +01:00
Gabor Juhos
c7371cd1ee ar71xx: add definitions for RouterBOARD hardware option bits
Add bit definitions for the 'hardware options' tag which is used in
the MikroTik devices' hardware configurations. These values can be
used in board setup codes, to do different initialization sequences.
The values were obtained from the RouterOS 6.41-rc38 patches.

Additionally, introduce two helper functions what make the processing
of the hardware options easy.

Signed-off-by: Gabor Juhos <juhosg@freemail.hu>
2018-01-22 10:53:00 +01:00
Hauke Mehrtens
36f1978a70 pistachio: make patches apply again
Support for Winbond NAND flash detection was added into the generic
patches and this conflicted with this patch adding Gigadevice support.

Fixes: 02050f7e7d ("kernel/4.{4, 9}: add manufacturer ID for Winbond NANDs")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2018-01-20 23:36:05 +01:00
Hauke Mehrtens
4d649ba949 ipq806x: make patches apply again
Some part of this patch was added to the generic patches as it was
needed also for some other target. Do not add it here any more.

Fixes: 02050f7e7d ("kernel/4.{4, 9}: add manufacturer ID for Winbond NANDs")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2018-01-20 23:24:02 +01:00
Hauke Mehrtens
e390756eff x86: Add CONFIG_RETPOLINE to fix build
This adds support for the new configuration option CONFIG_RETPOLINE and
refreshes the configuration.

Fixes: d8565a06dc ("kernel: bump 4.9 to 4.9.77")
Fixes: 9ddfac8015 ("kernel: bump 4.14 to 4.14.14")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2018-01-20 22:46:34 +01:00
Hauke Mehrtens
4336efe14b kernel: use upstream patches for musl
This replaces the current patches used to make the kernel headers
compatible with musl with the version which was accepted upstream. This
is included in upstream kernel 4.15.
This was compile tested with iproute2 build on all supported kernel
versions with musl and one one with glibc.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2018-01-20 22:11:33 +01:00
Hauke Mehrtens
f9aca01a53 kernel: backport fix for nftables on big Endian
nftables 0.8.1 generates some new commands which will not work without
this on big endian systems. This patch is included in Linux 4.11 and
later.

My rule matching a TCP port was not working:
nft add rule ip foo bar ct state new tcp dport 22 accept

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2018-01-20 20:22:01 +01:00
Kevin Darbyshire-Bryant
a30370bbf1 kernel: bump 4.4 to 4.4.112
Refresh patches.
Remove upstreamed patches:

target/linux/generic/patches-4.4/030-2-smsc75xx-use-skb_cow_head-to-deal-with-cloned-skbs.patch
target/linux/generic/patches-4.4/030-3-cx82310_eth-use-skb_cow_head-to-deal-with-cloned-skb.patch
target/linux/generic/patches-4.4/030-4-sr9700-use-skb_cow_head-to-deal-with-cloned-skbs.patch
target/linux/generic/patches-4.4/030-5-lan78xx-use-skb_cow_head-to-deal-with-cloned-skbs.patch

CVEs completely or partially addressed:

CVE-2017-5715
CVE-2017-5753
CVE-2017-17741
CVE-2017-1000410

Compile-tested: ar71xx Archer C7 v2
Run-tested: ar71xx Archer C7 v2

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2018-01-20 20:22:01 +01:00
Kevin Darbyshire-Bryant
d8565a06dc kernel: bump 4.9 to 4.9.77
Refresh patches.
Remove upstreamed patches:

target/linux/generic/backport-4.9/023-2-smsc75xx-use-skb_cow_head-to-deal-with-cloned-skbs.patch
target/linux/generic/backport-4.9/023-3-cx82310_eth-use-skb_cow_head-to-deal-with-cloned-skb.patch
target/linux/generic/backport-4.9/023-4-sr9700-use-skb_cow_head-to-deal-with-cloned-skbs.patch
target/linux/generic/backport-4.9/023-5-lan78xx-use-skb_cow_head-to-deal-with-cloned-skbs.patch

CVEs completely or partially addressed:

CVE-2017-5715
CVE-2017-5753
CVE-2017-17741
CVE-2017-1000410

Compile-tested: ar71xx Archer C7 v2
Run-tested: ar71xx Archer C7 v2

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2018-01-20 20:22:01 +01:00
Kevin Darbyshire-Bryant
9ddfac8015 kernel: bump 4.14 to 4.14.14
Refresh patches.

CVEs completely or partially addressed:

CVE-2017-5715
CVE-2017-5753
CVE-2017-17741
CVE-2017-1000410

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2018-01-20 20:22:00 +01:00
Gabor Juhos
02050f7e7d kernel/4.{4, 9}: add manufacturer ID for Winbond NANDs
Some MikroTik devices are using a Winbond NAND flash. Linux treats
it as an unknown NAND before version 4.11:

  nand: device found, Manufacturer ID: 0xef, Chip ID: 0xf1
  nand: Unknown NAND 128MiB 3,3V 8-bit
  nand: 128 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64

Backport a patch from 4.11 to show the manufacturer correctly:

  nand: device found, Manufacturer ID: 0xef, Chip ID: 0xf1
  nand: Winbond NAND 128MiB 3,3V 8-bit
  nand: 128 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64

Tested on a MikroTik R951Ui-2HnD board.

Signed-off-by: Gabor Juhos <juhosg@freemail.hu>
2018-01-20 20:22:00 +01:00
Christian Lamparter
9c2ac19b03 ipq806x: remove merged ipq4019 patch
The patch 0022-dts-ipq4019-support-ARMv7-PMU.patch
was merged into 4.8-rc1.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
[refresh patches]
Signed-off-by: Mathias Kresin <dev@kresin.me>
2018-01-18 21:21:11 +01:00
Christian Lamparter
5988364cf3 ipq806x: remove dependency on non-existent kmod
During the integration of the ipq40xx target,
the phy drivers were included into the ipq806x's
target kernel config.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2018-01-18 21:21:11 +01:00
Christian Lamparter
51dd8f3875 ipq-wifi: align AVM FRITZ!Box 4040's board-2.bin package
This patch renames the AVM FRITZ!Box 4040's board-2.bin
file and package to match the 'vendor_product' format.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2018-01-18 21:21:11 +01:00
Christian Lamparter
42b47f1b40 ipq806x: overhaul AVM FRITZ!box 4040 device-tree file
This patch aligns the device-tree file with the latest
guidelines.
 - No longer include qcom-ipq4019-ap.dk01.1.dtsi. This
   file is only partially upstream and therefore subjected
   to changes that might not be compatible with the board.

   As a result, the definitions from the file have been
   copied into this dts.

 - exclusively use decimal GPIO addresses.

 - reorganize the reserved-memory layout to waste less
   memory. There's no point in keeping the u-boot loader
   around. This should also make it possible    to create
   an image that will boot with the original EVA/ADAM2 loader
   without needing to install the modified u-boot loader.
   And finally mark the "tz-apps" as reusable.
   There isn't a way to  upload apps to the trust-zone in OpenWrt
   yet. But it might see some use in the future as a "secure"
   key-store/TPM.

 - sort the first-level nodes alphabetically.
 - sort nodes with an address by the address.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2018-01-18 21:21:11 +01:00
Serg Studzinskii
eb58b14d27 ramips: tl-wr840n-v5: increase firmware partition for 4Mmtk layot
According to console log during TP-Link TL-WR840N v5 OEM firmware update
procedure 0x3e0000-0x3f0000 64kB "config" partition, which is used to store
router's configuration settings, is erased and recreated again during every
OEM firmware update procedure, thus does not contain any valuable factory data.
So it is conviniant to use this extra 64kB erase block for jffs overlay due
limited flash size on this device like it used on TP-Link's ar71xx boards.

Signed-off-by: Serg Studzinskii <serguzhg@gmail.com>
2018-01-18 08:04:18 +01:00
尤晓杰
a7e62b4be1 kirkwood: fix sysupgrade
The platform_check_image() stub need to return 0 for success, otherwise
the sysupgrade will fail with:

  Image check 'platform_check_image' failed.

Fixes: aa6f5f1787 ("kirkwood: use image metadata")
Signed-off-by: 尤晓杰 <yxj790222@163.com>
[reworded commit message}
Signed-off-by: Mathias Kresin <dev@kresin.me>
2018-01-18 07:26:28 +01:00
Mathias Kresin
b6868e2f47 ipq806x: fix ZyXEL NBG6817 sysupgrade
Use the first found directory in the tar archive instead of relying on
a directory named according to the userspace boardname.

It allows to change the boardname without adding another compatibility
layer to the zyxel sysupgrade.

Fixes: 33f09cf151 ("ipq806x: convert to dt-based board-detection")
Signed-off-by: Mathias Kresin <dev@kresin.me>
2018-01-18 07:22:37 +01:00
Gabor Juhos
ec4e9a88ff ar71xx: drop mdio-gpio.h include from mach-om5pacv2.c
The setup code of the OpenMesh OM5P ACv2 device uses nothing
from the mdio-gpio.h header, so remove the inclusion of that.

Also remove the kernel version check which is needed only
because the mdio-gpio.h header exists in a different path
in older kernels.

Compile tested only.

Cc: Sven Eckelmann <sven.eckelmann@openmesh.com>
Signed-off-by: Gabor Juhos <juhosg@freemail.hu>
2018-01-17 11:07:17 +01:00
Koen Vandeputte
d3afd2a400 cns3xxx: switch to kernel 4.14
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2018-01-17 11:07:17 +01:00
Koen Vandeputte
9e7d53c3fe cns3xxx: refresh patches
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2018-01-17 11:07:17 +01:00
Koen Vandeputte
7f93624d5f cns3xxx: remove deprecated uart flags
Flag UPF_NO_TXEN_TEST is deprecated.

Remove it.

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2018-01-17 11:07:17 +01:00
Koen Vandeputte
f3dec44520 cns3xxx: fix ethernet IRQ imbalance in 4.14
Kernel 4.14 contains more warnings regarding NAPI usage, which showed
following warning:

[ 4016.420000] ------------[ cut here ]------------
[ 4016.430000] WARNING: CPU: 1 PID: 14 at kernel/irq/manage.c:525
__enable_irq+0x3c/0x78
[ 4016.440000] Unbalanced enable for IRQ 51
[ 4016.440000] Modules linked in: ath9k ath9k_common pppoe ppp_async
ath9k_hw ath pppox ppp_generic nf_conntrack_ipv6 mac80211 iptable_nat
ipt_REJECT ipt_MASQUERADE cfg80211 xt_time xt_tcpudp xt_state xt_nat
xt_multiport xt_mark xt_mac xt_limit xt_conntrack xt_comment xt_TCPMSS
xt_REDIRECT xt_LOG slhc nf_reject_ipv4 nf_nat_redirs
[ 4016.500000] CPU: 1 PID: 14 Comm: ksoftirqd/1 Tainted: G        W
       4.14.11 #0
[ 4016.500000] Hardware name: Gateworks Corporation Laguna Platform
[ 4016.510000] Backtrace:
[ 4016.510000] [<c010a28c>] (dump_backtrace) from [<c010a56c>]
(show_stack+0x18/0x1c)
[ 4016.520000]  r7:c059df4b r6:00000000 r5:60000093 r4:00000000
[ 4016.530000] [<c010a554>] (show_stack) from [<c048b04c>]
(dump_stack+0x94/0xb4)
[ 4016.530000] [<c048afb8>] (dump_stack) from [<c011760c>]
(__warn+0xc8/0xf8)
[ 4016.540000]  r7:c059df4b r6:c015144c r5:00000000 r4:cf863e08
[ 4016.550000] [<c0117544>] (__warn) from [<c011767c>]
(warn_slowpath_fmt+0x40/0x48)
[ 4016.550000]  r9:cf863eb0 r8:00000036 r7:00000000 r6:c0636360
r5:00000033 r4:cf80a500
[ 4016.560000] [<c0117640>] (warn_slowpath_fmt) from [<c015144c>]
(__enable_irq+0x3c/0x78)
[ 4016.570000]  r3:00000033 r2:c059e0c5
[ 4016.570000] [<c0151410>] (__enable_irq) from [<c01514ec>]
(enable_irq+0x64/0x7c)
[ 4016.580000] [<c0151488>] (enable_irq) from [<c0335c14>]
(eth_poll+0x28c/0x558)
[ 4016.590000]  r5:d08926c0 r4:cf894488
[ 4016.590000] [<c0335988>] (eth_poll) from [<c03b1718>]
(net_rx_action+0xfc/0x2e8)
[ 4016.600000]  r10:cf863eb8 r9:cf863eb0 r8:00000001 r7:0f7b5000
r6:c0636360 r5:cfdeb360
[ 4016.610000]  r4:cf894488
[ 4016.610000] [<c03b161c>] (net_rx_action) from [<c0101510>]
(__do_softirq+0xe0/0x228)
[ 4016.620000]  r10:00000100 r9:c070204c r8:c0702040 r7:00000003
r6:00000008 r5:40000003
[ 4016.620000]  r4:cf862000
[ 4016.630000] [<c0101430>] (__do_softirq) from [<c011ae28>]
(run_ksoftirqd+0x34/0x58)
[ 4016.630000]  r10:c0133964 r9:00000000 r8:00000001 r7:00000000
r6:c070b44c r5:cf862000
[ 4016.640000]  r4:cf8037e0
[ 4016.640000] [<c011adf4>] (run_ksoftirqd) from [<c0133adc>]
(smpboot_thread_fn+0x178/0x190)
[ 4016.650000] [<c0133964>] (smpboot_thread_fn) from [<c013099c>]
(kthread+0x11c/0x138)
[ 4016.660000]  r9:cf8037e0 r8:cf802cdc r7:cf839df8 r6:cf803800
r5:00000000 r4:cf802cc0
[ 4016.670000] [<c0130880>] (kthread) from [<c0107218>]
(ret_from_fork+0x14/0x3c)
[ 4016.680000]  r10:00000000 r9:00000000 r8:00000000 r7:00000000
r6:00000000 r5:c0130880
[ 4016.680000]  r4:cf803800 r3:cf862000
[ 4016.690000] ---[ end trace 51114df08f429115 ]---

This is triggered by calling eth_schedule_poll(sw) after the IRQ has
been re-enabled.

Rework the network code to only enable IRQ's again if NAPI agrees it's
safe to do so.

Also only re-enable IRQ *after* cleaning up the RX ring and re-enabling
DMA, which otherwise resulted in ugly warnings regarding dirty page
fragments.
These popped up nearly immediately when building the kernel with O2 iso
Os.

--> Note that this change fixes stability issues, at the cost of ~8%
throughput performance.

While at it, also change the iface name being used in warning prints,
making it more obvious: "switch%d" --> "cns3xxx_eth"

The changes have been tested on 4 boards, each moving ~30TB of data

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2018-01-17 11:07:17 +01:00