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Finn Thain 90042a5398 net/sonic: Prevent tx watchdog timeout 
commit 686f85d71d upstream.

Section 5.5.3.2 of the datasheet says,

    If FIFO Underrun, Byte Count Mismatch, Excessive Collision, or
    Excessive Deferral (if enabled) errors occur, transmission ceases.

In this situation, the chip asserts a TXER interrupt rather than TXDN.
But the handler for the TXDN is the only way that the transmit queue
gets restarted. Hence, an aborted transmission can result in a watchdog
timeout.

This problem can be reproduced on congested link, as that can result in
excessive transmitter collisions. Another way to reproduce this is with
a FIFO Underrun, which may be caused by DMA latency.

In event of a TXER interrupt, prevent a watchdog timeout by restarting
transmission.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-29 16:43:23 +01:00
..
accessibility
acpi ACPI: PM: Introduce "poweroff" callbacks for ACPI PM domain and LPSS 2020-01-27 14:51:00 +01:00
amba
android binder: Handle start==NULL in binder_update_page_range() 2019-12-13 08:52:52 +01:00
ata ahci: Do not export local variable ahci_em_messages 2020-01-27 14:51:07 +01:00
atm firestream: fix memory leaks 2020-01-29 16:43:14 +01:00
auxdisplay
base PM: sleep: Fix possible overflow in pm_system_cancel_wakeup() 2020-01-27 14:51:01 +01:00
bcma bcma: fix incorrect update of BCMA_CORE_PCI_MDIO_DATA 2020-01-27 14:51:09 +01:00
block signal: Allow cifs and drbd to receive their terminating signals 2020-01-27 14:51:05 +01:00
bluetooth Bluetooth: btusb: fix PM leak in error case of setup 2020-01-09 10:19:04 +01:00
bus bus: ti-sysc: Fix sysc_unprepare() when no clocks have been allocated 2020-01-27 14:50:36 +01:00
cdrom cdrom: respect device capabilities during opening action 2020-01-04 19:13:12 +01:00
char hwrng: omap3-rom - Fix missing clock by probing with device tree 2020-01-27 14:51:20 +01:00
clk clk: actions: Fix factor clk struct member access 2020-01-27 14:51:14 +01:00
clocksource clocksource/drivers/exynos_mct: Fix error path in timer resources initialization 2020-01-27 14:50:27 +01:00
connector
cpufreq cpufreq: brcmstb-avs-cpufreq: Fix types for voltage/frequency 2020-01-27 14:50:53 +01:00
cpuidle cpuidle: Do not unset the driver if it is there already 2019-12-17 20:35:00 +01:00
crypto crypto: hisilicon - Matching the dma address for dma_pool_free() 2020-01-27 14:51:14 +01:00
dax
dca
devfreq PM / devfreq: Check NULL governor in available_governors_show 2020-01-09 10:19:03 +01:00
dio
dma dmaengine: ti: edma: fix missed failure handling 2020-01-27 14:51:22 +01:00
dma-buf dma-buf: Fix memory leak in sync_file_merge() 2019-12-21 10:57:38 +01:00
edac EDAC/mc: Fix edac_mc_find() in case no device is found 2020-01-27 14:50:48 +01:00
eisa
extcon extcon: sm5502: Reset registers during initialization 2019-12-31 16:35:11 +01:00
firewire net: add annotations on hh->hh_len lockless accesses 2020-01-09 10:19:09 +01:00
firmware firmware: dmi: Fix unlikely out-of-bounds read in save_mem_devices 2020-01-27 14:51:19 +01:00
fmc
fpga
fsi fsi: sbefifo: Don't fail operations when in SBE IPL state 2020-01-27 14:51:00 +01:00
gnss
gpio gpio/aspeed: Fix incorrect number of banks 2020-01-27 14:51:13 +01:00
gpu drm/radeon: fix bad DMA from INTERRUPT_CNTL2 2020-01-27 14:51:22 +01:00
hid HID: hidraw, uhid: Always report EPOLLOUT 2020-01-17 19:46:55 +01:00
hsi
hv vmbus: keep pointer to ring buffer page 2019-11-20 18:47:31 +01:00
hwmon hwmon: (nct7802) Fix voltage limits to wrong registers 2020-01-29 16:43:21 +01:00
hwspinlock
hwtracing coresight: catu: fix clang build warning 2020-01-27 14:50:42 +01:00
i2c i2c: stm32f7: report dma error during probe 2020-01-27 14:51:21 +01:00
ide
idle
iio iio: dac: ad5380: fix incorrect assignment to val 2020-01-27 14:51:09 +01:00
infiniband scsi: RDMA/isert: Fix a recently introduced regression related to logout 2020-01-29 16:43:21 +01:00
input Input: sun4i-ts - add a check for devm_thermal_zone_of_sensor_register 2020-01-29 16:43:20 +01:00
iommu iommu/amd: Wait for completion of IOTLB flush in attach_device 2020-01-27 14:51:14 +01:00
ipack
irqchip irqchip: Place CONFIG_SIFIVE_PLIC into the menu 2020-01-23 08:21:36 +01:00
isdn staging: gigaset: add endpoint-type sanity check 2019-12-17 20:34:33 +01:00
leds led: triggers: Fix dereferencing of null pointer 2020-01-27 14:51:10 +01:00
lightnvm lightnvm: pblk: fix lock order in pblk_rb_tear_down_check 2020-01-27 14:50:45 +01:00
macintosh macintosh/windfarm_smu_sat: Fix debug output 2019-12-01 09:16:37 +01:00
mailbox mailbox: qcom-apcs: fix max_register value 2020-01-27 14:51:14 +01:00
mcb
md bcache: Fix an error code in bch_dump_read() 2020-01-27 14:51:09 +01:00
media media: em28xx: Fix exception handling in em28xx_alloc_urbs() 2020-01-27 14:51:07 +01:00
memory memory: tegra: Don't invoke Tegra30+ specific memory timing setup on Tegra20 2020-01-27 14:50:13 +01:00
memstick
message scsi: mptfusion: Fix double fetch bug in ioctl 2020-01-23 08:21:28 +01:00
mfd mfd: intel-lpss: Release IDA resources 2020-01-27 14:50:59 +01:00
misc mic: avoid statically declaring a 'struct device'. 2020-01-27 14:51:02 +01:00
mmc mmc: sdhci: fix minimum clock rate for v3 controller 2020-01-29 16:43:19 +01:00
mtd mtd: devices: fix mchp23k256 read and write 2020-01-23 08:21:37 +01:00
mux
net net/sonic: Prevent tx watchdog timeout 2020-01-29 16:43:23 +01:00
nfc NFC: pn533: fix bulk-message timeout 2020-01-23 08:21:34 +01:00
ntb ntb_hw_switchtec: potential shift wrapping bug in switchtec_ntb_init_sndev() 2020-01-27 14:50:55 +01:00
nubus
nvdimm libnvdimm/btt: fix variable 'rc' set but not used 2020-01-04 19:13:00 +01:00
nvme nvme: retain split access workaround for capability reads 2020-01-27 14:51:16 +01:00
nvmem nvmem: imx-ocotp: Change TIMING calculation to u-boot algorithm 2020-01-27 14:50:58 +01:00
of of: mdio: Fix a signedness bug in of_phy_get_and_connect() 2020-01-27 14:51:15 +01:00
opp OPP: Fix missing debugfs supply directory for OPPs 2020-01-27 14:50:04 +01:00
oprofile
parisc
parport parport: load lowlevel driver if ports not found 2019-12-31 16:36:01 +01:00
pci PCI: Mark AMD Navi14 GPU rev 0xc5 ATS as broken 2020-01-29 16:43:18 +01:00
pcmcia
perf
phy phy: usb: phy-brcm-usb: Remove sysfs attributes upon driver removal 2020-01-27 14:50:54 +01:00
pinctrl pinctrl: iproc-gpio: Fix incorrect pinconf configurations 2020-01-27 14:51:12 +01:00
platform MIPS: Loongson: Fix return value of loongson_hwmon_init 2020-01-27 14:51:21 +01:00
pnp
power power: supply: Init device wakeup after device_add() 2020-01-27 14:51:08 +01:00
powercap
pps
ps3
ptp ptp: free ptp device pin descriptors properly 2020-01-23 08:21:35 +01:00
pwm pwm: meson: Don't disable PWM when setting duty repeatedly 2020-01-27 14:50:47 +01:00
rapidio drivers/rapidio/rio_cm.c: fix potential oops in riocm_ch_listen() 2020-01-27 14:50:31 +01:00
ras
regulator regulator: tps65086: Fix tps65086_ldoa1_ranges for selector 0xB 2020-01-27 14:50:33 +01:00
remoteproc remoteproc: qcom: q6v5-mss: Add missing regulator for MSM8996 2020-01-27 14:50:10 +01:00
reset reset: Fix memory leak in reset_control_array_put() 2019-12-05 09:19:36 +01:00
rpmsg rpmsg: glink: Free pending deferred work on remove 2019-12-21 10:57:30 +01:00
rtc rtc: pcf2127: bugfix: read rtc disables watchdog 2020-01-27 14:51:07 +01:00
s390 s390/qeth: Fix initialization of vnicc cmd masks during set online 2020-01-27 14:51:18 +01:00
sbus
scsi scsi: fnic: fix msix interrupt allocation 2020-01-27 14:51:11 +01:00
sfi
sh
siox
slimbus slimbus: ngd: Fix build error on x86 2019-12-13 08:51:54 +01:00
sn
soc soc: amlogic: meson-gx-pwrc-vpu: Fix power on/off register bitmask 2020-01-27 14:50:39 +01:00
soundwire soundwire: intel: fix PDI/stream mapping for Bulk 2019-12-31 16:35:55 +01:00
spi spi: bcm-qspi: Fix BSPI QUAD and DUAL mode support when using flex mode 2020-01-27 14:51:03 +01:00
spmi
ssb
staging staging: greybus: light: fix a couple double frees 2020-01-27 14:51:08 +01:00
target scsi: RDMA/isert: Fix a recently introduced regression related to logout 2020-01-29 16:43:21 +01:00
tc
tee tee: optee: add missing of_node_put after of_device_is_available 2019-11-24 08:19:08 +01:00
thermal thermal: cpu_cooling: Actually trace CPU load in thermal_power_cpu_get_power 2020-01-27 14:50:48 +01:00
thunderbolt thunderbolt: Power cycle the router if NVM authentication fails 2019-12-05 09:21:27 +01:00
tty serial: stm32: fix clearing interrupt error flags 2020-01-27 14:51:22 +01:00
uio driver: uio: fix possible use-after-free in __uio_register_device 2020-01-27 14:50:17 +01:00
usb usb: dwc3: Allow building USB_DWC3_QCOM without EXTCON 2020-01-27 14:51:22 +01:00
uwb
vfio vfio/mdev: Fix aborting mdev child device removal if one fails 2020-01-27 14:50:46 +01:00
vhost vhost/test: stop device before reset 2020-01-27 14:51:19 +01:00
video backlight: pwm_bl: Fix heuristic to determine number of brightness levels 2020-01-27 14:50:58 +01:00
virt
virtio virtio-balloon: fix managed page counts when migrating pages between zones 2019-12-17 20:34:43 +01:00
visorbus
vlynq
vme
w1 w1: IAD Register is yet readable trough iad sys file. Fix snprintf (%u for unsigned, count for max size). 2019-12-01 09:16:22 +01:00
watchdog watchdog: rtd119x_wdt: Fix remove function 2020-01-27 14:50:45 +01:00
xen net: add {READ|WRITE}_ONCE() annotations on ->rskq_accept_head 2020-01-27 14:51:18 +01:00
zorro
Kconfig
Makefile