linux/drivers
Giuseppe CAVALLARO a08070acd4 stmmac: fix Transmit Underflow error
On some old MAC chips without COE sometime the
Transmit Underflow error is issued.

The driver aborted all the transmission process
and initialized it from scratch.
This breaks the network activity as raised by Nachiketa
on a SPEAr board.

The patch is to fix this rare underflow event.
The driver will only clear the interrupt and the Tx
DMA will go out the Suspend state as soon as the
descriptor is fetched again.
The driver will continue to bump-up the DMA FIFO threshold
that, indeed, helped somebody to prevent this kind of error
in the past as well.

Reported-by: Nachiketa Prachanda <nprachanda@ncomputing.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-11 12:55:48 -07:00
..
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acpi Fix common misspellings 2011-03-31 11:26:23 -03:00
amba Fix common misspellings 2011-03-31 11:26:23 -03:00
ata Fix common misspellings 2011-03-31 11:26:23 -03:00
atm Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6 2011-04-07 11:14:49 -07:00
auxdisplay Fix common misspellings 2011-03-31 11:26:23 -03:00
base Fix common misspellings 2011-03-31 11:26:23 -03:00
block Fix common misspellings 2011-03-31 11:26:23 -03:00
bluetooth Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6 2011-04-07 11:14:49 -07:00
cdrom Fix common misspellings 2011-03-31 11:26:23 -03:00
char Fix common misspellings 2011-03-31 11:26:23 -03:00
clk
clocksource
connector connector: convert to synchronous netlink message processing 2011-03-30 17:14:33 -07:00
cpufreq Fix common misspellings 2011-03-31 11:26:23 -03:00
cpuidle
crypto Fix common misspellings 2011-03-31 11:26:23 -03:00
dca
dio
dma Merge branch 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 2011-04-07 12:48:45 -07:00
edac Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6 2011-04-07 11:14:49 -07:00
eisa
firewire Fix common misspellings 2011-03-31 11:26:23 -03:00
firmware
gpio Fix common misspellings 2011-03-31 11:26:23 -03:00
gpu Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6 2011-04-07 11:14:49 -07:00
hid Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6 2011-04-07 11:14:49 -07:00
hwmon Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6 2011-04-07 11:14:49 -07:00
hwspinlock
i2c Fix common misspellings 2011-03-31 11:26:23 -03:00
ide Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6 2011-04-07 11:14:49 -07:00
idle
ieee802154
infiniband Fix common misspellings 2011-03-31 11:26:23 -03:00
input Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6 2011-04-07 11:14:49 -07:00
isdn Fix common misspellings 2011-03-31 11:26:23 -03:00
leds Fix common misspellings 2011-03-31 11:26:23 -03:00
lguest Fix common misspellings 2011-03-31 11:26:23 -03:00
macintosh Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6 2011-04-07 11:14:49 -07:00
mca
md Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6 2011-04-07 11:14:49 -07:00
media Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6 2011-04-07 11:14:49 -07:00
memstick Fix common misspellings 2011-03-31 11:26:23 -03:00
message Fix common misspellings 2011-03-31 11:26:23 -03:00
mfd Fix common misspellings 2011-03-31 11:26:23 -03:00
misc Fix common misspellings 2011-03-31 11:26:23 -03:00
mmc Fix common misspellings 2011-03-31 11:26:23 -03:00
mtd Merge git://git.infradead.org/mtd-2.6 2011-04-09 13:23:50 -07:00
net stmmac: fix Transmit Underflow error 2011-04-11 12:55:48 -07:00
nfc
nubus
of Fix common misspellings 2011-03-31 11:26:23 -03:00
oprofile
parisc Fix common misspellings 2011-03-31 11:26:23 -03:00
parport Fix common misspellings 2011-03-31 11:26:23 -03:00
pci pci: fix PCI bus allocation alignment handling 2011-04-11 10:53:11 -07:00
pcmcia Fix common misspellings 2011-03-31 11:26:23 -03:00
platform Fix common misspellings 2011-03-31 11:26:23 -03:00
pnp Fix common misspellings 2011-03-31 11:26:23 -03:00
power drivers: Final irq namespace conversion 2011-03-29 14:48:19 +02:00
pps Fix common misspellings 2011-03-31 11:26:23 -03:00
ps3 Fix common misspellings 2011-03-31 11:26:23 -03:00
rapidio Fix common misspellings 2011-03-31 11:26:23 -03:00
regulator Fix common misspellings 2011-03-31 11:26:23 -03:00
rtc Merge branches 'x86-fixes-for-linus', 'sched-fixes-for-linus', 'timers-fixes-for-linus', 'irq-fixes-for-linus' and 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2011-04-07 12:12:58 -07:00
s390 Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6 2011-04-08 07:36:14 -07:00
sbus Fix common misspellings 2011-03-31 11:26:23 -03:00
scsi Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6 2011-04-07 11:14:49 -07:00
sfi Fix common misspellings 2011-03-31 11:26:23 -03:00
sh sh: Fix irq cleanup fallout 2011-03-30 00:15:49 +02:00
sn
spi Fix common misspellings 2011-03-31 11:26:23 -03:00
ssb Fix common misspellings 2011-03-31 11:26:23 -03:00
staging Merge branch 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6 2011-04-07 11:36:44 -07:00
target Fix common misspellings 2011-03-31 11:26:23 -03:00
tc
telephony Fix common misspellings 2011-03-31 11:26:23 -03:00
thermal
tty Merge branch 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 2011-04-07 12:48:45 -07:00
uio Fix common misspellings 2011-03-31 11:26:23 -03:00
usb Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6 2011-04-07 11:14:49 -07:00
uwb Fix common misspellings 2011-03-31 11:26:23 -03:00
vhost
video Merge branch 'fbdev-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6 2011-04-07 12:49:17 -07:00
virtio
vlynq vlynq: Convert irq functions 2011-03-28 19:33:04 +02:00
w1 Fix common misspellings 2011-03-31 11:26:23 -03:00
watchdog watchdog: mpc8xxx_wdt: fix build 2011-04-07 20:20:24 +00:00
xen Fix common misspellings 2011-03-31 11:26:23 -03:00
zorro
Kconfig
Makefile