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1e6c38cec0
linux/drivers/scsi
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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
..
aacraid [SCSI] aacraid: forced reset override 2008-01-11 18:22:39 -06:00
aic7xxx Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2007-10-23 16:37:29 -07:00
aic7xxx_old
aic94xx [SCSI] libsas: Convert sas_proto users to sas_protocol 2008-01-11 18:22:41 -06:00
arcmsr deal with resource allocation bugs in arcmsr 2007-10-29 07:41:33 -07:00
arm [ARM] Fix an rpc_defconfig regression 2007-10-31 15:21:35 +00:00
dpt [SCSI] dpt: whitespace cleanup 2007-04-01 10:10:04 -05:00
ibmvscsi [SCSI] ibmvscsi: Set default command timeout 2008-01-11 18:22:31 -06:00
libsas [SCSI] libsas: Fix various sparse complaints 2008-01-11 18:22:41 -06:00
lpfc [SCSI] lpfc 8.2.3 : Change version number to 8.2.3 2008-01-11 18:22:34 -06:00
megaraid [SCSI] megaraid_sas: Convert aen_mutex to the mutex API 2008-01-11 18:22:41 -06:00
pcmcia [SCSI] nsp_cs: convert to data accessors and !use_sg cleanup 2008-01-11 18:22:34 -06:00
qla2xxx [SCSI] qla2xxx: Update version number to 8.02.00-k5. 2007-10-23 15:55:16 -04:00
qla4xxx Fix misspellings of "system", "controller", "interrupt" and "necessary". 2007-10-19 23:10:43 +02:00
sym53c8xx_2 [SCSI] sym53c8xx: fix "irq X: nobody cared" regression 2007-12-18 16:04:09 -06:00
.gitignore [SCSI] 53c7xx: fix removal fallout 2008-01-11 18:22:30 -06:00
3w-9xxx.c [SCSI] 3w-9xxx: fix abysmal write performance on some motherboards 2008-01-11 18:22:42 -06:00
3w-9xxx.h [SCSI] 3w-9xxx: add support for 9690SA 2007-07-21 08:57:40 -05:00
3w-xxxx.c [SG] Update drivers to use sg helpers 2007-10-22 21:19:53 +02:00
3w-xxxx.h [SCSI] 3ware 8000 serialize reset code 2007-01-06 09:18:00 -06:00
53c700_d.h_shipped
53c700.c [SCSI] 53c700: Remove printk, which triggers because of low scsi clock on SNI RMs 2007-07-14 19:12:43 -05:00
53c700.h [SCSI] 53c700: m68k support for the 53c700 SCSI core 2007-06-17 16:15:56 -05:00
53c700.scr
a100u2w.c [SCSI] add use_sg_chaining option to scsi_host_template 2007-10-16 11:24:32 +02:00
a100u2w.h [SCSI] a100u2w: Convert into Linux style 2007-06-17 16:09:29 -05:00
a2091.c [SCSI] a2091: convert to accessors and !use_sg cleanup 2008-01-11 18:22:35 -06:00
a2091.h
a3000.c [SCSI] a3000: convert to accessors and !use_sg cleanup 2008-01-11 18:22:35 -06:00
a3000.h
a4000t.c [SCSI] kmalloc + memset conversion to kzalloc 2007-10-12 14:41:00 -04:00
advansys.c [SCSI] advansys: Changes to work on parisc 2007-10-12 14:54:13 -04:00
aha152x.c [SCSI] aha152x: Use scsi_eh API for REQUEST_SENSE invocation 2008-01-11 18:22:34 -06:00
aha152x.h [SCSI] aha152x: fix debug mode symbol conflict 2007-08-04 09:11:06 -05:00
aha1542.c [SCSI] aha1542: convert to accessors and !use_sg cleanup 2008-01-11 18:22:35 -06:00
aha1542.h
aha1740.c [SCSI] add use_sg_chaining option to scsi_host_template 2007-10-16 11:24:32 +02:00
aha1740.h
aic7xxx_old.c [SCSI] aic7xxx_old: fix accidental logic reversal 2007-10-18 08:40:42 -04:00
atari_dma_emul.c IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00
atari_NCR5380.c [SCSI] NCR5380 family: convert to accessors & !use_sg cleanup 2008-01-11 18:22:39 -06:00
atari_scsi.c [SCSI] NCR5380: Fix bugs and canonicalize irq handler usage 2007-11-25 12:19:26 +02:00
atari_scsi.h m68k: Atari SCSI driver compile fixes 2007-05-04 17:59:05 -07:00
atp870u.c [SCSI] atp870u: convert to accessors and !use_sg cleanup 2008-01-11 18:22:38 -06:00
atp870u.h
blz1230.c [TC] dec_esp: Driver model for the PMAZ-A 2007-02-09 16:23:17 +00:00
blz2060.c [TC] dec_esp: Driver model for the PMAZ-A 2007-02-09 16:23:17 +00:00
BusLogic.c [SCSI] add use_sg_chaining option to scsi_host_template 2007-10-16 11:24:32 +02:00
BusLogic.h [SCSI] BusLogic: Replace 'boolean' by 'bool' 2007-02-07 18:32:29 -05:00
bvme6000_scsi.c [SCSI] kmalloc + memset conversion to kzalloc 2007-10-12 14:41:00 -04:00
ch.c [SCSI] ch: kmalloc/memset->kzalloc 2007-05-06 09:33:11 -05:00
constants.c [SCSI] Add Documentation and integrate into docbook build 2008-01-11 18:22:40 -06:00
cyberstorm.c [TC] dec_esp: Driver model for the PMAZ-A 2007-02-09 16:23:17 +00:00
cyberstormII.c [TC] dec_esp: Driver model for the PMAZ-A 2007-02-09 16:23:17 +00:00
dc395x.c Fix misspellings of "system", "controller", "interrupt" and "necessary". 2007-10-19 23:10:43 +02:00
dc395x.h
dec_esp.c [TC] dec_esp: Driver model for the PMAZ-A 2007-02-09 16:23:17 +00:00
dmx3191d.c
dpt_i2o.c [SCSI] dpt_i2o: driver is only 32 bit so don't set 64 bit DMA mask 2007-12-18 16:04:08 -06:00
dpti.h revert "dpt_i2o: convert to SCSI hotplug model" 2007-12-10 19:43:54 -08:00
dtc.c [SCSI] NCR5380: Fix bugs and canonicalize irq handler usage 2007-11-25 12:19:26 +02:00
dtc.h
eata_generic.h [SCSI] eata_pio: Remove FALSE/TRUE defines 2007-03-20 11:27:03 -05:00
eata_pio.c [SCSI] eata_pio: convert to accessors and !use_sg cleanup 2008-01-11 18:22:34 -06:00
eata_pio.h
eata.c [SCSI] add use_sg_chaining option to scsi_host_template 2007-10-16 11:24:32 +02:00
esp_scsi.c esp_scsi: fix reset cleanup spinlock recursion 2007-12-10 19:43:55 -08:00
esp_scsi.h [SCSI] ESP: Revert ESP_BUS_TIMEOUT back down to 250 2007-07-31 10:51:25 -05:00
fastlane.c [TC] dec_esp: Driver model for the PMAZ-A 2007-02-09 16:23:17 +00:00
fd_mcs.c [SCSI] fd_mcs: convert to accessors and !use_sg cleanup 2008-01-11 18:22:35 -06:00
fdomain.c [SG] Update drivers to use sg helpers 2007-10-22 21:19:53 +02:00
fdomain.h
FlashPoint.c FlashPoint, use BIT instead of BITW 2007-10-19 11:53:42 -07:00
g_NCR5380_mmio.c
g_NCR5380.c [SCSI] NCR5380: Fix bugs and canonicalize irq handler usage 2007-11-25 12:19:26 +02:00
g_NCR5380.h
gdth_ioctl.h
gdth_proc.c [SCSI] gdth: Move members from SCp to gdth_cmndinfo, stage 2 2007-10-12 14:56:09 -04:00
gdth_proc.h [SCSI] gdth: clean up host private data 2007-10-12 14:55:46 -04:00
gdth.c Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2007-10-23 16:37:29 -07:00
gdth.h [SCSI] gdth: !use_sg cleanup and use of scsi accessors 2007-10-12 14:56:13 -04:00
gvp11.c [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
gvp11.h
hosts.c [SCSI] Add Documentation and integrate into docbook build 2008-01-11 18:22:40 -06:00
hptiop.c [SCSI] hptiop: avoid buffer overflow when returning sense data 2007-10-17 21:56:13 -04:00
hptiop.h [SCSI] hptiop: adding new firmware interface and more PCI device IDs 2007-10-12 14:46:40 -04:00
ibmmca.c [SG] Update drivers to use sg helpers 2007-10-22 21:19:53 +02:00
ide-scsi.c ide-scsi: add ide_scsi_hex_dump() helper 2007-12-12 23:31:57 +01:00
imm.c [SCSI] imm: convert to accessors and !use_sg cleanup 2008-01-11 18:22:41 -06:00
imm.h Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
in2000.c [SCSI] in2000: convert to accessors and !use_sg cleanup 2008-01-11 18:22:36 -06:00
in2000.h
initio.c [SCSI] initio: bugfix for accessors patch 2007-12-18 16:04:15 -06:00
initio.h [SCSI] initio: Convert into a real Linux driver and update to modern style 2007-05-22 11:08:56 -05:00
ipr.c SG: Change sg_set_page() to take length and offset argument 2007-10-24 11:20:47 +02:00
ipr.h [SCSI] ipr: Use PCI-E reset API for new ipr adapter 2007-05-08 11:54:40 -05:00
ips.c [SG] Update drivers to use sg helpers 2007-10-22 21:19:53 +02:00
ips.h [SCSI] ips: Update version information 2007-10-12 14:51:44 -04:00
iscsi_tcp.c [SCSI] iscsi_tcp: fix potential lockup with write commands 2007-11-14 14:51:58 -06:00
iscsi_tcp.h [SCSI] iscsi_tcp: fix potential lockup with write commands 2007-11-14 14:51:58 -06:00
jazz_esp.c [SCSI] esp: use shost_priv 2007-05-31 17:30:04 -04:00
Kconfig [SCSI] seagate: Remove driver 2008-01-11 18:22:36 -06:00
lasi700.c some kmalloc/memset ->kzalloc (tree wide) 2007-07-19 10:04:50 -07:00
libiscsi.c [SCSI] iscsi: return data transfer residual for data-out commands 2007-11-14 14:52:16 -06:00
libsrp.c [SCSI] tgt: convert to use the data buffer accessors 2008-01-11 18:22:30 -06:00
mac53c94.c [SCSI] add use_sg_chaining option to scsi_host_template 2007-10-16 11:24:32 +02:00
mac53c94.h
mac_esp.c [TC] dec_esp: Driver model for the PMAZ-A 2007-02-09 16:23:17 +00:00
mac_scsi.c [SCSI] NCR5380: Fix bugs and canonicalize irq handler usage 2007-11-25 12:19:26 +02:00
mac_scsi.h
Makefile [SCSI] seagate: Remove driver 2008-01-11 18:22:36 -06:00
mca_53c9x.c [TC] dec_esp: Driver model for the PMAZ-A 2007-02-09 16:23:17 +00:00
megaraid.c [SG] Update drivers to use sg helpers 2007-10-22 21:19:53 +02:00
megaraid.h [SCSI] megaraid: fix warnings when CONFIG_PROC_FS=n 2007-05-08 11:15:08 -05:00
mesh.c [SCSI] add use_sg_chaining option to scsi_host_template 2007-10-16 11:24:32 +02:00
mesh.h
mvme16x_scsi.c [SCSI] kmalloc + memset conversion to kzalloc 2007-10-12 14:41:00 -04:00
mvme147.c [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
mvme147.h
ncr53c8xx.c [SCSI] Remove ->pid field from scsi_cmnd 2007-10-12 14:51:52 -04:00
ncr53c8xx.h [SCSI] ncr53c8xx: Call scsi_host_put in release 2007-10-12 14:51:18 -04:00
NCR53c406a.c [SG] Update drivers to use sg helpers 2007-10-22 21:19:53 +02:00
NCR53C9x.c [SG] Update drivers to use sg helpers 2007-10-22 21:19:53 +02:00
NCR53C9x.h [TC] dec_esp: Driver model for the PMAZ-A 2007-02-09 16:23:17 +00:00
NCR5380.c [SCSI] NCR5380 family: convert to accessors & !use_sg cleanup 2008-01-11 18:22:39 -06:00
NCR5380.h [SCSI] NCR5380: Use scsi_eh API for REQUEST_SENSE invocation 2007-10-12 14:55:07 -04:00
NCR_D700.c [SCSI] kmalloc + memset conversion to kzalloc 2007-10-12 14:41:00 -04:00
NCR_D700.h
NCR_Q720.c some kmalloc/memset ->kzalloc (tree wide) 2007-07-19 10:04:50 -07:00
NCR_Q720.h
nsp32_debug.c
nsp32_io.h
nsp32.c [SCSI] add use_sg_chaining option to scsi_host_template 2007-10-16 11:24:32 +02:00
nsp32.h define global BIT macro 2007-10-19 11:53:42 -07:00
oktagon_esp.c [SG] Update drivers to use sg helpers 2007-10-22 21:19:53 +02:00
oktagon_io.S
osst_detect.h
osst_options.h
osst.c [SCSI] osst: fix if (...) \n #if... cases missing semicolons when false 2007-10-27 14:31:06 -05:00
osst.h [SCSI] osst: Use mutex instead of semaphore 2007-10-12 14:50:55 -04:00
pas16.c [SCSI] NCR5380: Fix bugs and canonicalize irq handler usage 2007-11-25 12:19:26 +02:00
pas16.h
ppa.c [SCSI] ppa: convert to accessors and !use_sg cleanup 2008-01-11 18:22:41 -06:00
ppa.h Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
ps3rom.c powerpc: Fix fallout from sg_page() changes 2007-10-23 09:13:14 +02:00
ql1040_fw.h
ql1280_fw.h
ql12160_fw.h
qla1280.c [SCSI] qla1280: fix 32 bit segment code 2008-01-09 15:06:07 -06:00
qla1280.h [SCSI] qla1280: eliminate wasted space in request and response ring 2007-10-23 12:35:35 -04:00
qlogicfas408.c [SG] Update drivers to use sg helpers 2007-10-22 21:19:53 +02:00
qlogicfas408.h [SCSI] Scsi_Cmnd conversion in qlogicfas408 driver 2006-10-25 15:11:55 -07:00
qlogicfas.c [SCSI] add use_sg_chaining option to scsi_host_template 2007-10-16 11:24:32 +02:00
qlogicpti_asm.c [SPARC]: Fix some section mismatch warnings in sparc drivers. 2006-10-17 19:28:51 -07:00
qlogicpti.c [SCSI] qlogicpti: convert to accessors and !use_sg cleanup 2008-01-11 18:22:36 -06:00
qlogicpti.h [SCSI] qlogicpti: Add a slave_configure method 2007-10-12 14:52:38 -04:00
raid_class.c [SCSI] raid class: handle component-add errors 2006-10-04 13:27:26 -05:00
script_asm.pl
scsi_debug.c [SCSI] scsi_debug: convert to use the data buffer accessors 2008-01-11 18:22:38 -06:00
scsi_debug.h
scsi_devinfo.c [SCSI] Add Documentation and integrate into docbook build 2008-01-11 18:22:40 -06:00
scsi_error.c [SCSI] Add Documentation and integrate into docbook build 2008-01-11 18:22:40 -06:00
scsi_ioctl.c [SCSI] Add Documentation and integrate into docbook build 2008-01-11 18:22:40 -06:00
scsi_lib_dma.c [SCSI] don't build scsi_dma_{map,unmap} for !HAS_DMA 2007-07-14 19:28:10 -05:00
scsi_lib.c [SCSI] Add Documentation and integrate into docbook build 2008-01-11 18:22:40 -06:00
scsi_logging.h
scsi_module.c
scsi_netlink.c [SCSI] Add Documentation and integrate into docbook build 2008-01-11 18:22:40 -06:00
scsi_priv.h Revert "scsi: revert "[SCSI] Get rid of scsi_cmnd->done"" 2008-01-06 10:17:12 -08:00
scsi_proc.c [SCSI] Add Documentation and integrate into docbook build 2008-01-11 18:22:40 -06:00
scsi_sas_internal.h
scsi_scan.c [SCSI] Add Documentation and integrate into docbook build 2008-01-11 18:22:40 -06:00
scsi_sysctl.c [SCSI] small cleanups 2007-07-18 11:16:32 -05:00
scsi_sysfs.c [SCSI] scsi_sysfs: restore prep_fn when ULD is removed 2008-01-02 13:08:00 -06:00
scsi_tgt_if.c [SCSI] tgt: convert to use the data buffer accessors 2008-01-11 18:22:30 -06:00
scsi_tgt_lib.c [SCSI] tgt: convert to use the data buffer accessors 2008-01-11 18:22:30 -06:00
scsi_tgt_priv.h [SCSI] tgt: add I_T nexus support 2007-10-12 14:37:50 -04:00
scsi_transport_api.h
scsi_transport_fc_internal.h [SCSI] fc_transport: add target driver support 2007-10-12 14:46:58 -04:00
scsi_transport_fc.c [SCSI] Add Documentation and integrate into docbook build 2008-01-11 18:22:40 -06:00
scsi_transport_iscsi.c [SCSI] Add Documentation and integrate into docbook build 2008-01-11 18:22:40 -06:00
scsi_transport_sas.c [SCSI] Add Documentation and integrate into docbook build 2008-01-11 18:22:40 -06:00
scsi_transport_spi.c [SCSI] scsi_transport_spi: fix domain validation failure from incorrect width setting 2007-09-22 08:52:12 -05:00
scsi_transport_srp_internal.h [SCSI] scsi_transport_srp: remove tgt dependencies 2007-10-12 14:38:09 -04:00
scsi_transport_srp.c [SCSI] Add Documentation and integrate into docbook build 2008-01-11 18:22:40 -06:00
scsi_typedefs.h
scsi_wait_scan.c [SCSI] Add ability to scan scsi busses asynchronously 2006-10-11 13:44:25 -05:00
scsi.c [SCSI] Add Documentation and integrate into docbook build 2008-01-11 18:22:40 -06:00
scsi.h
scsicam.c [SCSI] Add Documentation and integrate into docbook build 2008-01-11 18:22:40 -06:00
sd.c [SCSI] sr,sd: send media state change modification events 2008-01-11 18:22:30 -06:00
sg.c Initialise scatter/gather list in sg driver 2007-10-29 09:18:03 +01:00
sgiwd93.c Convert SGI IP22 and specific drivers to platform_device. 2007-05-11 17:00:29 +01:00
sim710.c Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2007-07-22 11:36:49 -07:00
sni_53c710.c [SCSI] sni_53c710: Cleanup 2007-07-14 19:12:15 -05:00
sr_ioctl.c [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
sr_vendor.c [PATCH] getting rid of all casts of k[cmz]alloc() calls 2006-12-13 09:05:58 -08:00
sr.c [SCSI] sr,sd: send media state change modification events 2008-01-11 18:22:30 -06:00
sr.h [SCSI] sr,sd: send media state change modification events 2008-01-11 18:22:30 -06:00
st_options.h
st.c [SCSI] st: fix kernel BUG at include/linux/scatterlist.h:59! 2007-12-18 16:04:13 -06:00
st.h [SCSI] st: Use mutex instead of semaphore 2007-07-31 10:44:01 -05:00
stex.c [SCSI] add use_sg_chaining option to scsi_host_template 2007-10-16 11:24:32 +02:00
sun3_NCR5380.c [SCSI] NCR5380 family: convert to accessors & !use_sg cleanup 2008-01-11 18:22:39 -06:00
sun3_scsi_vme.c [SCSI] NCR5380: Fix bugs and canonicalize irq handler usage 2007-11-25 12:19:26 +02:00
sun3_scsi.c [SCSI] NCR5380: Fix bugs and canonicalize irq handler usage 2007-11-25 12:19:26 +02:00
sun3_scsi.h [PATCH] Sun3 SCSI: Make sun3 scsi drivers compile/work again 2006-12-09 09:41:18 -08:00
sun3x_esp.c m68k: sg fallout 2007-10-24 08:55:40 +02:00
sun_esp.c [SCSI] esp: use shost_priv 2007-05-31 17:30:04 -04:00
sym53c416.c [SG] Update drivers to use sg helpers 2007-10-22 21:19:53 +02:00
sym53c416.h
t128.c [SCSI] NCR5380: Fix bugs and canonicalize irq handler usage 2007-11-25 12:19:26 +02:00
t128.h [SCSI] scsi: t128 scsi_cmnd convertion 2006-11-15 16:43:50 -06:00
tmscsim.c [SG] Update drivers to use sg helpers 2007-10-22 21:19:53 +02:00
tmscsim.h [SCSI] tmscsim: Further clean-up of the driver 2007-07-14 18:56:33 -05:00
u14-34f.c Fixup u14-34f ENABLE_SG_CHAINING 2007-10-16 11:24:44 +02:00
ultrastor.c [SG] Update drivers to use sg helpers 2007-10-22 21:19:53 +02:00
ultrastor.h
wd33c93.c [SCSI] wd33c93: convert to accessors and !use_sg cleanup 2008-01-11 18:22:35 -06:00
wd33c93.h Spelling fix: explicitly 2007-10-19 23:22:55 +02:00
wd7000.c [SCSI] wd7000: proper fix for boards without sg support 2008-01-11 18:22:39 -06:00
zalon.c
zorro7xx.c m68k: zorro7xx needs <asm/amigahw.h> 2007-11-29 09:24:52 -08:00