Tony Battersby 1e6c38cec0 [SCSI] 3w-9xxx: fix abysmal write performance on some motherboards ... The 3ware 9500S-8 SATA RAID controller exhibits terrible write performance when PCI memory-write-and-invalidate is disabled. This is easy to demonstrate by replacing pci_try_set_mwi() in the patch below with pci_clear_mwi(). My benchmarks show the following: MWI disabled: 15 MB/s write, 330 MB/s read MWI enabled: 240 MB/s write, 330 MB/s read Most motherboards will enable MWI without the driver having to set it explicitly, so most people probably wouldn't encounter this problem. For the few motherboards that don't enable it, this patch could give a 16x performance improvement for writing. This issue does not seem to affect the 9550SX controller, but the patch doesn't hurt it either. I haven't tested any of the other 3ware controllers. Signed-off-by: Tony Battersby <tonyb@cybernetics.com> Acked-by: adam radford <aradford@gmail.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>		2008-01-11 18:22:42 -06:00
..
acorn/char
acpi	Pull bugzilla-9362 into release branch	2007-12-14 15:14:52 -05:00
amba
ata	libata and starting/stopping ATAPI floppy devices	2008-01-10 17:13:19 -05:00
atm	[ATM]: [nicstar] delay irq setup until card is configured	2008-01-08 23:30:01 -08:00
auxdisplay
base	create /sys/.../power when CONFIG_PM is set	2007-11-28 13:53:53 -08:00
block	loop: fix bad bio_alloc() nr_iovec request	2008-01-11 10:14:40 +01:00
bluetooth
cdrom
char	pl2303: Fix mode switching regression	2008-01-08 16:16:34 -08:00
clocksource
connector	[CONNECTOR]: Don't touch queue dev after decrement of ref count.	2008-01-08 23:44:44 -08:00
cpufreq	drivers/cpufreq/cpufreq_stats.c section fix	2007-12-17 19:28:16 -08:00
cpuidle
crypto	Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2008-01-10 16:09:34 -08:00
dca
dio
dma	I/OAT: fix null device in call to dev_err()	2007-12-17 19:28:17 -08:00
edac	i5000_edac: no need to __stringify() KBUILD_BASENAME	2007-11-14 18:45:41 -08:00
eisa
firewire	firewire: OHCI 1.0 Isochronous Receive support	2007-12-10 21:55:19 +01:00
firmware	dmi-id: fix for __you_cannot_kmalloc_that_much failure	2008-01-08 16:10:36 -08:00
hid
hwmon	hwmon: (w83627ehf) Be more careful when changing VID input level	2008-01-03 07:33:31 -05:00
i2c	i2c/isp1301_omap: Build fix	2007-12-12 13:45:25 +01:00
ide	IDE: terminate ACPI DMI list	2008-01-11 11:42:07 -08:00
ieee1394
infiniband	IB/srp: Release transport before removing host	2008-01-08 12:08:10 -08:00
input	spi: use simplified spi_sync() calling convention	2007-12-05 09:21:19 -08:00
isdn	[ISDN]: i4l: Fix DLE handling for i4l-audio	2008-01-04 03:55:44 -08:00
kvm	KVM: SVM: Fix FPU leak while emulating clts	2007-11-27 15:38:18 +02:00
leds	leds: Fix locomo LED driver oops	2007-12-31 23:11:11 +00:00
lguest	virtio: fix module/device unloading	2007-11-19 11:20:42 +11:00
macintosh	drivers/macintosh/via-pmu.c: Added a missing iounmap	2007-12-17 19:28:16 -08:00
mca
md	md: fix data corruption when a degraded raid5 array is reshaped	2008-01-08 16:10:35 -08:00
media	V4L/DVB (7001): av7110: fix section mismatch	2008-01-11 15:02:25 -02:00
message
mfd	MFD: SM501 debug typo fix	2007-11-29 09:24:53 -08:00
misc	ACPI: thinkpad-acpi: fix lenovo keymap for brightness	2007-12-13 21:59:59 -05:00
mmc	sdhci: support JMicron JMB38x chips	2007-12-12 20:01:00 +01:00
mtd	cache invalidation error for buffered write	2008-01-11 11:44:37 -08:00
net	[FORCEDETH]: Fix reversing the MAC address on suspend.	2008-01-08 23:30:20 -08:00
nubus
of
oprofile	oProfile: oops when profile_pc() returns ~0LU	2007-11-14 18:45:37 -08:00
parisc	[PARISC] lba_pci: pci_claim_resources disabled expansion roms	2007-12-06 09:38:26 -08:00
parport	parport: "dev->timeslice" is an unsigned long, not an int	2007-12-17 19:28:15 -08:00
pci	[PCI] Do not enable CRS Software Visibility by default	2007-12-27 21:21:36 -08:00
pcmcia	pcmcia: remove pxa2xx_lubbock build warning	2007-12-23 12:54:37 -08:00
pnp	drivers/pnp/resource.c: Add missing pci_dev_put	2007-11-29 09:24:52 -08:00
power
ps3	ps3: vuart: fix error path locking	2007-12-23 12:54:37 -08:00
rapidio
rtc	rtc-at32ap700x: fix irq init oops	2007-12-17 19:28:15 -08:00
s390	[SCSI] zfcp: Reduce flood on hba trace	2008-01-11 18:22:40 -06:00
sbus	[WATCHDOG] Sbus: cpwatchdog, remove SPIN_LOCK_UNLOCKED	2007-11-19 21:09:52 +00:00
scsi	[SCSI] 3w-9xxx: fix abysmal write performance on some motherboards	2008-01-11 18:22:42 -06:00
serial	[SERIAL]: Fix section mismatches in Sun serial console drivers.	2007-12-29 01:19:49 -08:00
sh
sn
spi	spi_bitbang: always grab lock with irqs blocked	2008-01-08 16:10:35 -08:00
ssb	ssb: Fix probing of PCI cores if PCI and PCIE core is available	2008-01-08 23:30:10 -08:00
tc
telephony
uio
usb	[SCSI] isd200: use one-element sg list in issuing commands	2008-01-11 18:22:38 -06:00
video	ps3fb: fix deadlock on kexec()	2008-01-11 11:47:43 -08:00
virtio	virtio: fix module/device unloading	2007-11-19 11:20:42 +11:00
w1	W1: fix memset size error	2007-11-14 18:45:36 -08:00
watchdog	[WATCHDOG] add Nano 7240 driver	2007-12-04 16:48:06 +00:00
xen
zorro	Amiga zorro bus: Add missing zorro_device_remove()	2007-11-26 19:15:31 -08:00
Kconfig
Makefile