linux/drivers/scsi/aacraid
Martin K. Petersen 54b2b50c20 [SCSI] Disable WRITE SAME for RAID and virtual host adapter drivers
Some host adapters do not pass commands through to the target disk
directly. Instead they provide an emulated target which may or may not
accurately report its capabilities. In some cases the physical device
characteristics are reported even when the host adapter is processing
commands on the device's behalf. This can lead to adapter firmware hangs
or excessive I/O errors.

This patch disables WRITE SAME for devices connected to host adapters
that provide an emulated target. Driver writers can disable WRITE SAME
by setting the no_write_same flag in the host adapter template.

[jejb: fix up rejections due to eh_deadline patch]
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: stable@kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-11-29 08:48:39 +04:00
..
aachba.c [SCSI] aacraid: SCSI dma mapping failure case handling 2012-11-27 08:59:46 +04:00
aacraid.h [SCSI] aacraid: Dual firmware image support 2013-04-10 11:55:52 -07:00
commctrl.c aacraid: prevent invalid pointer dereference 2013-11-19 16:27:39 -08:00
comminit.c [SCSI] aacraid: Dual firmware image support 2013-04-10 11:55:52 -07:00
commsup.c drivers: avoid parsing names as kthread_run() format strings 2013-07-03 16:07:41 -07:00
dpcsup.c [SCSI] aacraid: Series 7 Async. (performance) mode support 2012-07-20 08:59:04 +01:00
linit.c [SCSI] Disable WRITE SAME for RAID and virtual host adapter drivers 2013-11-29 08:48:39 +04:00
Makefile [SCSI] aacraid: Add new code for PMC-Sierra's SRC based controller family 2011-03-23 11:36:58 -05:00
nark.c [SCSI] aacraid: Use resource_size_t for IO mem pointers and offsets 2012-07-20 08:58:43 +01:00
rkt.c [SCSI] aacraid: Use resource_size_t for IO mem pointers and offsets 2012-07-20 08:58:43 +01:00
rx.c [SCSI] aacraid: Use resource_size_t for IO mem pointers and offsets 2012-07-20 08:58:43 +01:00
sa.c [SCSI] aacraid: Use resource_size_t for IO mem pointers and offsets 2012-07-20 08:58:43 +01:00
src.c [SCSI] aacraid: Fix for arrays are going offline in the system. System hangs 2013-06-26 18:01:42 -07:00
TODO