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abf45dbb5b
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Michael S. Tsirkin abf45dbb5b IB/mthca: Disable tuning PCI read burst size 
The PCI spec recommends against drivers playing with a device's PCI
read burst size, and says that systems software should configure it.
And we actually have users that report that changing it from the
default set by BIOS hurts performance and/or stability for them.  On
the other hand, the Mellanox Programmer's Reference Manual recommends
turning it up all the way to the maximum value.  Some tests conducted
here in the lab do not show performance improvement from this tuning,
but this might be just me.

As a work-around, make this tuning an option, off by default (safe
value), with an eye towards removing it completely one day if no one
complains.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-04-10 09:43:58 -07:00
..
acorn
acpi [PATCH] Don't pass boot parameters to argv_init[] 2006-03-31 12:18:53 -08:00
amba
atm [PATCH] Replace 0xff.. with correct DMA_xBIT_MASK 2006-03-28 09:16:07 -08:00
base [PATCH] Notifier chain update: API changes 2006-03-27 08:44:50 -08:00
block [PATCH] Don't pass boot parameters to argv_init[] 2006-03-31 12:18:53 -08:00
bluetooth [PATCH] pcmcia: use bitfield instead of p_state and state 2006-03-31 17:26:33 +02:00
cdrom [PATCH] Remove MODULE_PARM 2006-03-25 08:22:52 -08:00
char Merge master.kernel.org:/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog 2006-04-02 13:01:11 -07:00
connector [PATCH] sem2mutex: drivers: raw, connector, dcdbas, ppp_generic 2006-03-23 07:38:10 -08:00
cpufreq [CPUFREQ] cpufreq_conservative: keep ignore_nice_load and freq_step values when reselected 2006-03-28 12:20:18 -05:00
crypto [CRYPTO] api: Align tfm context as wide as possible 2006-03-21 20:14:08 +11:00
dio [PATCH] hp300: fix driver_register() return handling, remove dio_module_init() 2006-03-25 08:22:53 -08:00
edac [PATCH] edac_752x needs CONFIG_HOTPLUG 2006-03-31 12:18:54 -08:00
eisa [PATCH] EISA: Ignore generated file drivers/eisa/devlist.h 2006-03-25 08:23:01 -08:00
fc4
firmware [PATCH] Notifier chain update: API changes 2006-03-27 08:44:50 -08:00
hwmon [PATCH] revert incorrect mutex conversion in hdaps driver 2006-04-02 13:02:05 -07:00
i2c [PATCH] RTC subsystem: I2C cleanup 2006-03-27 08:44:51 -08:00
ide Merge master.kernel.org:/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2006-04-02 12:49:59 -07:00
ieee1394 [PATCH] sbp2: fix spinlock recursion 2006-04-02 12:58:09 -07:00
infiniband IB/mthca: Disable tuning PCI read burst size 2006-04-10 09:43:58 -07:00
input Input: synaptics - limit rate to 40pps on Toshiba Protege M300 2006-04-02 00:10:18 -05:00
isdn Merge master.kernel.org:/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2006-04-02 12:49:59 -07:00
leds [PATCH] LED: Add IDE disk activity LED trigger 2006-03-31 12:18:57 -08:00
macintosh Merge ../linux-2.6 2006-03-29 13:24:50 +11:00
mca
md BUG_ON() Conversion in md/raid10.c 2006-04-02 13:34:29 +02:00
media V4L/DVB (3667b): cpia2: fix function prototype 2006-04-02 05:02:33 -03:00
message [PATCH] mark f_ops const in the inode 2006-03-28 09:16:05 -08:00
mfd [PATCH] show MCP menu only on ARCH_SA1100 2006-03-24 07:33:28 -08:00
misc [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
mmc [MMC] Pass -DDEBUG on compiler command line if MMC_DEBUG selected 2006-03-29 09:30:20 +01:00
mtd Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2006-04-02 12:58:45 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2006-04-02 12:58:45 -07:00
nubus
oprofile [PATCH] mark f_ops const in the inode 2006-03-28 09:16:05 -08:00
parisc [PARISC] I/O-Space must be ioremap_nocache()'d 2006-03-30 17:48:42 +00:00
parport [PATCH] pcmcia: use bitfield instead of p_state and state 2006-03-31 17:26:33 +02:00
pci [PATCH] sem2mutex: misc static one-file mutexes 2006-03-26 08:56:55 -08:00
pcmcia Merge master.kernel.org:/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2006-04-02 12:49:59 -07:00
pnp [PATCH] pnp: PNP: adjust pnp_register_driver signature 2006-03-27 08:44:53 -08:00
rapidio
rtc [PATCH] RTC subsystem: M48T86 driver 2006-03-27 08:44:52 -08:00
s390 BUG_ON() Conversion in drivers/s390/net/lcs.c 2006-04-02 13:50:14 +02:00
sbus [SPARC]: Respect vm_page_prot in io_remap_page_range(). 2006-03-22 01:15:13 -08:00
scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2006-04-02 12:58:45 -07:00
serial Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2006-04-02 12:58:45 -07:00
sh
sn Pull sem2mutex-ioc4 into release branch 2006-03-21 08:17:15 -08:00
spi
tc [PATCH] kill _INLINE_ 2006-03-23 07:38:16 -08:00
telephony [PATCH] pcmcia: use bitfield instead of p_state and state 2006-03-31 17:26:33 +02:00
usb Merge master.kernel.org:/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2006-04-02 12:49:59 -07:00
video [PATCH] fbdev: Remove old radeon driver 2006-03-31 12:19:01 -08:00
w1 fix typos "wich" -> "which" 2006-03-24 18:23:14 +01:00
zorro [PATCH] amiga: fix driver_register() return handling, remove zorro_module_init() 2006-03-25 08:22:53 -08:00
Kconfig [PATCH] LED: add LED class 2006-03-31 12:18:56 -08:00
Makefile Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband 2006-04-02 12:51:22 -07:00