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Benjamin Herrenschmidt 10cbd64076 ftgmac100: Rework NAPI & interrupts handling 
First, don't look at the interrupt status in the poll loop
to decide what to poll. It's wrong. If we have run out of
budget, we may still have RX packets to unqueue but no more
RX interrupt pending.

So instead move the code looking at the interrupt status
into the interrupt handler where it belongs. That avoids a slow
MMIO read in the NAPI fast path. We keep the abnormal interrupts
enabled while NAPI is scheduled.

While at it, actually do something useful in the "error" cases:

On AHB bus error, trigger the new reset task, that's about all
we can do. On RX packet fifo or descriptor overflows, we need
to restart the MAC after having freed things up. So set a flag
that NAPI will see and use to perform that restart after
harvesting the RX ring.

Finally, we shouldn't complete NAPI if there are still outgoing
packets that will need harvesting. Waiting for more interrupts
is less efficient than letting NAPI run a while longer while
the queue drains.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2017-04-06 12:38:04 -07:00
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accessibility
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acpi Merge branches 'acpi-hotplug-fixes', 'acpi-build-fixes' and 'acpi-apei-fixes' 2017-03-31 22:50:14 +02:00
amba
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android sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h> 2017-03-02 08:42:29 +01:00
ata ahci: qoriq: correct the sata ecc setting error 2017-03-09 11:55:23 -05:00
atm ambassador: use setup_timer 2017-03-12 23:47:16 -07:00
auxdisplay auxdisplay: img-ascii-lcd: add missing sentinel entry in img_ascii_lcd_matches 2017-03-16 16:59:55 +09:00
base drivers core: remove assert_held_device_hotplug() 2017-03-16 16:56:19 -07:00
bcma Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-02-02 16:54:00 -05:00
block nbd: replace kill_bdev() with __invalidate_device() 2017-03-24 15:42:47 -06:00
bluetooth soc: qcom: smd: Transition client drivers from smd to rpmsg 2017-03-28 17:58:07 -07:00
bus ARM: SoC driver updates 2017-02-23 15:57:04 -08:00
cdrom Merge branch 'for-4.11/next' into for-4.11/linus-merge 2017-02-17 14:08:19 -07:00
char Char/Misc driver fixes for 4.11-rc4 2017-03-26 11:15:54 -07:00
clk Allwinner clock fixes for 4.11 2017-03-23 16:08:46 -07:00
clocksource Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-04-02 09:22:03 -07:00
connector
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cpufreq Merge branches 'pm-cpufreq-fixes' and 'pm-cpuidle-fixes' 2017-03-31 23:00:53 +02:00
cpuidle cpuidle: powernv: Pass correct drv->cpumask for registration 2017-03-29 22:55:36 +02:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2017-03-31 12:11:32 -07:00
dax device-dax: fix debug output typo 2017-03-10 19:56:56 -08:00
dca
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devfreq scripts/spelling.txt: add "followings" pattern and fix typo instances 2017-02-27 18:43:47 -08:00
dio
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dma dmaengine: Fix array index out of bounds warning in __get_unmap_pool() 2017-03-14 10:11:27 +05:30
dma-buf sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
edac EDAC, pnd2_edac: Fix reported DIMM number 2017-03-26 09:36:28 +02:00
eisa
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extcon extcon: int3496: Set the id pin to direction-input if necessary 2017-03-22 18:29:48 +09:00
firewire Merge branch 'idr-4.11' of git://git.infradead.org/users/willy/linux-dax 2017-02-28 20:29:41 -08:00
firmware efi/esrt: Cleanup bad memory map log messages 2017-03-17 18:53:12 +00:00
fmc
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fpga fpga zynq: Use the scatterlist interface 2017-02-10 15:20:44 +01:00
fsi drivers/fsi: add driver to device matches 2017-02-10 15:19:48 +01:00
gpio ACPI / gpio: do not fall back to parsing _CRS when we get a deferral 2017-03-30 11:08:46 +02:00
gpu Merge branch 'msm-fixes-4.11-rc6' of git://people.freedesktop.org/~robclark/linux into drm-fixes 2017-04-04 10:13:40 +10:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2017-03-31 11:50:31 -07:00
hsi sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
hv Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-06 08:24:51 -07:00
hwmon hwmon: (asus_atk0110) fix uninitialized data access 2017-03-23 12:01:57 -07:00
hwspinlock
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hwtracing intel_th: pci: Add Gemini Lake support 2017-03-15 14:55:18 +02:00
i2c i2c: mux: pca954x: Add missing pca9546 definition to chip_desc 2017-03-24 12:22:18 +01:00
ide sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h> 2017-03-02 08:42:36 +01:00
idle Power management turbostat utility updates for v4.11-rc1 2017-03-02 17:41:27 -08:00
iio iio: imu: st_lsm6dsx: fix FIFO_CTRL2 overwrite during watermark configuration 2017-03-19 10:44:42 +00:00
infiniband Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-06 08:24:51 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2017-03-23 19:51:06 -07:00
iommu Merge branch 'for-joerg/arm-smmu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into iommu/fixes 2017-03-22 23:59:56 +01:00
ipack
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irqchip irqchip fixes for 4.11-rc5 2017-03-31 16:54:48 +02:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-06 08:24:51 -07:00
leds sched/headers: Prepare for new header dependencies before moving code to <linux/sched/loadavg.h> 2017-03-02 08:42:27 +01:00
lguest sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
lightnvm lightnvm: set default lun range when no luns are specified 2017-02-15 08:27:21 -07:00
macintosh powerpc/pmac: Fix crash in dma-mapping.h with NULL dma_ops 2017-03-10 14:17:23 +11:00
mailbox sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
mcb
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md Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md 2017-03-16 11:43:48 -07:00
media media fixes for v4.11-rc4 2017-03-24 13:34:16 -07:00
memory Linux 4.11-rc1 2017-03-06 08:37:53 -08:00
memstick Merge branch 'for-4.11/next' into for-4.11/linus-merge 2017-02-17 14:08:19 -07:00
message SCSI misc on 20170220 2017-02-21 11:51:42 -08:00
mfd staging/iio driver patches for 4.11-rc1 2017-02-22 12:14:01 -08:00
misc Char/Misc driver fixes for 4.11-rc4 2017-03-26 11:15:54 -07:00
mmc mmc: sdhci-of-at91: fix MMC_DDR_52 timing selection 2017-03-30 21:10:29 +02:00
mtd scripts/spelling.txt: add "disble(d)" pattern and fix typo instances 2017-03-09 17:01:09 -08:00
net ftgmac100: Rework NAPI & interrupts handling 2017-04-06 12:38:04 -07:00
nfc scripts/spelling.txt: add "omited" pattern and fix typo instances 2017-02-27 18:43:47 -08:00
ntb ntb: ntb_hw_intel: link_poll isn't clearing the pending status properly 2017-02-16 23:11:26 -05:00
nubus
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nvdimm nfit, libnvdimm: fix interleave set cookie calculation 2017-03-01 00:49:42 -08:00
nvme nvme-loop: handle cpu unplug when re-establishing the controller 2017-03-21 18:38:46 +02:00
nvmem
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of DeviceTree updates for 4.11: 2017-02-22 19:23:14 -08:00
oprofile sched/headers: Prepare to move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h> 2017-03-02 08:42:40 +01:00
parisc Merge branch 'parisc-4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux 2017-03-03 16:20:06 -08:00
parport parport: fix attempt to write duplicate procfiles 2017-03-16 17:32:21 +09:00
pci PCI: thunder-pem: Add legacy firmware support for Cavium ThunderX host controller 2017-03-23 17:11:26 -05:00
pcmcia
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perf sched/headers: Prepare for new header dependencies before moving code to <linux/sched/clock.h> 2017-03-02 08:42:27 +01:00
phy phy: qcom-usb-hs: Add depends on EXTCON 2017-03-09 15:29:57 +05:30
pinctrl pinctrl: qcom: ipq4019: add missing pingroups for pins > 70 2017-03-23 10:13:15 +01:00
platform platform-drivers-x86 for v4.11-2 2017-03-13 13:23:43 -07:00
pnp
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power scripts/spelling.txt: add "intialization" pattern and fix typo instances 2017-02-27 18:43:47 -08:00
powercap
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pps
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ps3 sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h> 2017-03-02 08:42:29 +01:00
ptp PTP: fix ptr_ret.cocci warnings 2017-03-20 16:25:06 +01:00
pwm pwm: Changes for v4.11-rc1 2017-03-01 09:46:02 -08:00
rapidio drivers/rapidio/devices/tsi721.c: make module parameter variable name unique 2017-03-31 17:13:30 -07:00
ras
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regulator regulator: Updates for v4.11 2017-02-20 17:23:57 -08:00
remoteproc soc: qcom: smd: Remove standalone driver 2017-03-28 17:58:07 -07:00
reset ARM: SoC driver updates 2017-02-23 15:57:04 -08:00
rpmsg soc: qcom: smd: Remove standalone driver 2017-03-28 17:58:07 -07:00
rtc sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-05 20:17:38 -07:00
sbus
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scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-06 08:24:51 -07:00
sfi
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sh
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sn
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soc soc: qcom: smd-rpm: Add msm8996 compatibility 2017-03-28 17:58:08 -07:00
spi sched/headers: Prepare for new header dependencies before moving code to <uapi/linux/sched/types.h> 2017-03-02 08:42:27 +01:00
spmi
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ssb
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staging Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-14 21:31:23 -07:00
target tcmu: Convert cmd_time_out into backend device attribute 2017-03-18 16:32:30 -07:00
tc
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thermal thermal: cpu_cooling: Check OPP for errors 2017-03-13 10:06:55 +08:00
thunderbolt
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tty Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-06 08:24:51 -07:00
uio sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
usb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-06 08:24:51 -07:00
uwb uwb: i1480-dfu: fix NULL-deref at probe 2017-03-14 17:07:31 +08:00
vfio VFIO fixes for v4.11-rc4 2017-03-24 14:39:36 -07:00
vhost vhost-vsock: add pkt cancel capability 2017-03-21 14:41:46 -07:00
video sched/headers: Remove the <linux/mm_types.h> dependency from <linux/sched.h> 2017-03-03 01:45:16 +01:00
virt
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virtio virtio_balloon: prevent uninitialized variable use 2017-03-28 20:41:28 +03:00
vlynq
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vme
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w1 sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h> 2017-03-02 08:42:29 +01:00
watchdog watchdog: retu: restore MFD dependency 2017-03-01 06:15:10 -08:00
xen xen/acpi: upload PM state from init-domain to Xen 2017-03-23 12:00:02 -04:00
zorro
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Kconfig drivers/fsi: Add empty fsi bus definitions 2017-02-10 15:19:48 +01:00
Makefile pci-v4.11-changes 2017-02-23 11:53:22 -08:00