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Dan Williams b9cc98697d ioat3: interrupt coalescing 
The hardware automatically disables further interrupts after each event
until rearmed.  This allows a delay to be injected between the occurence
of the interrupt and the running of the cleanup routine.  The delay is
scaled by the descriptor backlog and then written to the INTRDELAY
register which specifies the number of microseconds to hold off
interrupt delivery after an interrupt event occurs.  According to
powertop this reduces the interrupt rate from ~5000 intr/s to ~150
intr/s per without affecting throughput (simple dd to a raid6 array).

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
 		2010-03-03 21:21:13 -07:00
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accessibility
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acpi Merge branch 'bugzilla-14954' into release 2010-01-20 01:26:22 -05:00
amba
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ata libata: retry FS IOs even if it has failed with AC_ERR_INVALID 2010-01-20 14:25:11 -05:00
atm
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auxdisplay
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base Revert "sysdev: fix prototype for memory_sysdev_class show/store functions" 2010-01-20 15:02:13 -08:00
block drbd: Allow online resizing of DRBD devices while peer not reachable (needs to be explicitly forced) 2010-01-12 10:02:46 +01:00
bluetooth
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cdrom
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char tty: fix race in tty_fasync 2010-01-20 15:03:31 -08:00
clocksource
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connector
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cpufreq
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cpuidle drivers/cpuidle/governors/menu.c: fix undefined reference to `__udivdi3' 2010-01-11 09:34:07 -08:00
crypto
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dca
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dio
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dma ioat3: interrupt coalescing 2010-03-03 21:21:13 -07:00
edac edac: i5000_edac critical fix panic out of bounds 2010-01-16 12:15:38 -08:00
eisa
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firewire firewire: ohci: fix crashes with TSB43AB23 on 64bit systems 2010-01-27 18:24:53 +01:00
firmware
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gpio gpio: adp5588-gpio: new driver for ADP5588 GPIO expanders 2010-01-11 09:34:07 -08:00
gpu drm/i915: Selectively enable self-reclaim 2010-01-27 09:26:43 -08:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2010-01-13 16:10:13 -08:00
hwmon hwmon: (fschmd) Fix a memleak on multiple opens of /dev/watchdog 2010-01-25 15:00:50 +01:00
i2c i2c: imx: call ioremap only after request_mem_region 2010-01-24 15:25:57 +00:00
ide
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idle
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ieee1394
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ieee802154
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infiniband Fix failure exit in ipathfs 2010-01-26 22:22:27 -05:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2010-01-29 11:15:32 -08:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2010-01-12 20:53:29 -08:00
leds
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lguest
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macintosh powerpc/macintosh: Make Open Firmware device id constant 2010-01-15 13:26:04 +11:00
mca
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md DM: Fix device mapper topology stacking 2010-01-11 14:29:20 +01:00
media Merge branch 'mantis' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 2010-01-18 14:07:07 -08:00
memstick
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message [SCSI] mptsas: Fix issue with chain pools allocation on katmai 2010-01-17 12:16:17 -06:00
mfd mfd: Fix asic3 build 2010-01-29 21:03:09 +01:00
misc
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mmc mfd: tmio_mmc hardware abstraction for CNF area 2010-01-18 12:30:27 +01:00
mtd Merge branch 'for-linus' of git://git.infradead.org/ubi-2.6 2010-01-28 12:57:50 -08:00
net virtio_net: Make delayed refill more reliable 2010-01-25 15:51:01 -08:00
nubus
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of
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oprofile
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parisc
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parport
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pci PCI: fix nested spinlock hang in aer_inject 2010-01-25 10:42:52 -08:00
pcmcia
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platform Merge branch 'misc' into release 2010-01-20 01:23:27 -05:00
pnp
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power
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pps
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ps3
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rapidio
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regulator
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rtc rtc_cmos: convert shutdown to new pnp_driver->shutdown 2010-01-11 09:34:07 -08:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6 2010-01-27 09:54:08 -08:00
sbus
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scsi [SCSI] aic79xx: check for non-NULL scb in ahd_handle_nonpkt_busfree 2010-01-17 12:48:12 -06:00
serial fmvj18x_cs: add new id (Panasonic lan & modem card) 2010-01-23 01:08:52 -08:00
sfi
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sh
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sn
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spi
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ssb
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staging Staging: hv: fix smp problems in the hyperv core code 2010-01-20 15:05:26 -08:00
tc
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telephony
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thermal
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uio
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usb USB: isp1362: fix build failure on ARM systems via irq_flags cleanup 2010-01-20 15:24:36 -08:00
uwb
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video revert "drivers/video/s3c-fb.c: fix clock setting for Samsung SoC Framebuffer" 2010-01-16 12:15:40 -08:00
virtio virtio: fix section mismatch warnings 2010-01-16 12:15:39 -08:00
vlynq
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w1
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watchdog [WATCHDOG] sbc_fitpc2_wdt: fix I/O space access technique. 2010-01-25 19:48:49 +00:00
xen xen: fix hang on suspend. 2010-01-13 10:01:35 +00:00
zorro
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Kconfig
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Makefile
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