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62a2ab935c
linux/drivers
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Giuseppe CAVALLARO 62a2ab935c stmmac: add Rx watchdog support to mitigate the DMA irqs 
GMAC devices newer than databook 3.40 has an embedded timer
that can be used for mitigating the number of interrupts.
So this patch adds this optimizations.

At any rate, the Rx watchdog can be disable (on bugged HW) by
passing from the platform the riwt_off field.

In this implementation the rx timer stored in the Reg9 is fixed
to the max value. This will be tuned by using ethtool.

V2: added a platform parameter to force to disable the rx-watchdog
for example on new core where it is bugged.

V3: do not disable NAPI when Rx watchdog is used.

V4: a new extra statistic field has been added to show the early
receive status in the interrupt handler.
This patch also adds an extra check to avoid to call
napi_schedule when the DMA_INTR_ENA_RIE bit is disabled in the
Interrupt Mask register.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-26 17:22:12 -05:00
..
accessibility
acpi ACPI video: Ignore errors after _DOD evaluation. 2012-11-03 09:52:54 +08:00
amba
ata SCSI fixes on 20121122 2012-11-22 09:14:54 -10:00
atm
auxdisplay
base PM / QoS: fix wrong error-checking condition 2012-11-23 20:55:06 +01:00
bcma bcma: suspend/resume callbacks should be conditionally compiled on CONFIG_PM_SLEEP 2012-10-29 15:19:31 -04:00
block mtip32xx: Fix padding issue 2012-11-23 14:32:55 +01:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-11-17 22:00:43 -05:00
bus drivers: bus: ocp2scp: add pdata support 2012-11-07 09:35:53 -08:00
cdrom
char sonypi: suspend/resume callbacks should be conditionally compiled on CONFIG_PM_SLEEP 2012-10-25 12:05:50 -07:00
clk clk: ux500: Register slimbus clock lookups for u8500 2012-11-12 10:20:23 -08:00
clocksource
connector
cpufreq cpufreq / powernow-k8: Change maintainer's email address 2012-10-31 21:02:57 +01:00
cpuidle ACPI idle, CPU hotplug: Fix NULL pointer dereference during hotplug 2012-10-08 22:52:54 -04:00
crypto
dca
devfreq
dio
dma ioat: Do not enable DCA if tag map is invalid 2012-11-15 05:20:01 -08:00
edac EDAC: Change Boris' email address 2012-10-30 10:05:51 +01:00
eisa
extcon extcon : register for cable interest by cable name 2012-10-23 16:32:18 +09:00
firewire [SCSI] sd: Implement support for WRITE SAME 2012-11-13 22:45:42 -08:00
firmware firmware/memmap: avoid type conflicts with the generic memmap_init() 2012-10-19 14:07:47 -07:00
gpio gpio-mcp23s08: Build I2C support even when CONFIG_I2C=m 2012-11-17 22:22:24 +01:00
gpu Merge branch 'drm-fixes-3.7' of git://people.freedesktop.org/~agd5f/linux into drm-fixes 2012-11-22 13:21:57 +10:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2012-11-16 07:58:20 -08:00
hsi
hv Drivers: hv: Cleanup error handling in vmbus_open() 2012-10-24 15:46:27 -07:00
hwmon hwmon: Fix chip feature table headers 2012-11-05 21:54:40 +01:00
hwspinlock
i2c Merge branch 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux 2012-11-23 11:59:26 -10:00
ide
idle
iio iio: Remove duplicates for light/ in Kconfig and Makefile 2012-10-19 19:44:06 +01:00
infiniband Merge branches 'cxgb4' and 'mlx4' into for-next 2012-10-23 09:03:49 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2012-11-22 21:45:34 -10:00
iommu intel-iommu: Fix lookup in add device 2012-11-17 13:27:15 +01:00
irqchip irqchip: irq-bcm2835: Add terminating entry for of_device_id table 2012-11-06 07:37:10 -08:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-11-10 18:32:51 -05:00
leds ledtrig-cpu: kill useless mutex to fix sleep in atomic context 2012-11-11 12:09:43 -08:00
lguest
macintosh
md Several bug fixes for md in 3.7 2012-11-23 12:11:13 -10:00
media [media] Kconfig: Fix dependencies for driver autoselect options 2012-10-17 16:45:56 -03:00
memory
memstick
message
mfd
misc pwm: Changes for v3.7-rc1 2012-10-10 20:15:24 +09:00
mmc mmc: sdhci-s3c: fix the card detection in runtime-pm 2012-11-07 15:40:52 -05:00
mtd Merge branch 'for-3.7' of git://git.infradead.org/users/dedekind/l2-mtd 2012-11-21 10:38:13 +00:00
net stmmac: add Rx watchdog support to mitigate the DMA irqs 2012-11-26 17:22:12 -05:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-11-25 12:49:17 -05:00
nubus
of of/platform: sparse fix 2012-10-17 15:53:03 -05:00
oprofile mm: use mm->exe_file instead of first VM_EXECUTABLE vma->vm_file 2012-10-09 16:22:18 +09:00
parisc
parport Xtensa patchset for 3.7 2012-10-09 16:11:46 +09:00
pci PCI/portdrv: Don't create hotplug slots unless port supports hotplug 2012-11-05 16:59:59 -07:00
pcmcia Merge branch 'testing/driver-warnings' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc into fixes 2012-10-19 15:40:18 -07:00
pinctrl pinctrl/samsung: don't allow enabling pinctrl-samsung standalone 2012-11-15 11:58:24 +01:00
platform Merge branches 'fixes-for-37', 'ec' and 'thermal' into release 2012-10-09 01:47:35 -04:00
pnp
power Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 2012-10-13 11:27:59 +09:00
pps pps, ptp: Remove dependencies on EXPERIMENTAL 2012-11-01 11:35:17 -04:00
ps3
ptp pch_gbe, ptp_pch: Fix the dependency direction between these drivers 2012-11-17 22:11:45 -05:00
pwm pwm: Changes for v3.7-rc1 2012-10-10 20:15:24 +09:00
rapidio rapidio: fix kernel-doc warnings 2012-11-16 14:33:04 -08:00
regulator Merge remote-tracking branches 'regulator/fix/gpio', 'regulator/fix/put' and 'regulator/fix/supp-volt' into tmp 2012-11-15 11:16:02 +09:00
remoteproc
rpmsg
rtc drivers/rtc/rtc-imxdi.c: add missing spin lock initialization 2012-10-25 14:37:53 -07:00
s390 qeth: Remove BUG_ONs 2012-11-19 14:19:00 -05:00
sbus
scsi [SCSI] sd: Implement support for WRITE SAME 2012-11-13 22:45:42 -08:00
sfi
sh sh: Fix up more fallout from pointless ARM __iomem churn. 2012-10-15 14:08:48 +09:00
sn
spi spi: Some minor MXS fixes 2012-10-28 11:13:54 -07:00
ssb ssb: handle BCM43222 in pmu code. 2012-10-29 15:30:37 -04:00
staging Revert "Staging: Android alarm: IOCTL command encoding fix" 2012-11-13 13:04:43 -08:00
target target: Fix incorrect usage of nested IRQ spinlocks in ABORT_TASK path 2012-11-01 00:38:45 -07:00
tc
thermal exynos4_tmu_driver_ids should be exynos_tmu_driver_ids. 2012-11-03 09:52:55 +08:00
tty tty: serial: max310x: Add terminating entry for spi_device_id table 2012-11-14 14:49:42 -08:00
uio mm: kill vma flag VM_RESERVED and mm->reserved_vm counter 2012-10-09 16:22:19 +09:00
usb SCSI fixes on 20121122 2012-11-22 09:14:54 -10:00
uwb
vfio vfio: Fix PCI INTx disable consistency 2012-10-10 09:10:32 -06:00
vhost vhost: Remove duplicate inclusion of linux/vhost.h 2012-11-19 14:51:40 -05:00
video omapdss fixes for 3.7-rc 2012-11-23 12:01:02 -10:00
virt
virtio virtio: Don't access index after unregister. 2012-11-09 14:54:24 +10:30
vlynq
vme
w1
watchdog
xen Bug-fix: 2012-11-20 18:52:01 -10:00
zorro
Kconfig
Makefile IPMI: Change link order 2012-10-16 18:07:12 -07:00