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3d6c76ff32
linux/drivers/s390/scsi
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Jan Glauber 3d6c76ff32 [S390] qdio: outbound tasklet scan threshold 
Introduce a scan treshold for the qdio outbound queues. By setting the
threshold the driver can tell qdio after how much used SBALs qdio
should schedule the outbound tasklet that scans the queue for finished
SBALs. The threshold is specific by the drivers because a
Hipersockets device is much faster in utilizing outbound buffers than a
ZFCP or OSA device.

The default values after how many used SBALs the tasklet should run are:

OSA:          > 31 SBALs
Hipersockets: > 7 SBALs
zfcp:         > 55 SBALs

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05 12:47:28 +01:00
..
Makefile [SCSI] zfcp: Move code for managing zfcp_unit devices to new file 2010-09-16 22:54:15 -04:00
zfcp_aux.c [SCSI] zfcp: Move code for managing zfcp_unit devices to new file 2010-09-16 22:54:15 -04:00
zfcp_ccw.c [SCSI] zfcp: Replace status modifier functions. 2010-09-16 22:54:23 -04:00
zfcp_cfdc.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2010-10-22 17:34:15 -07:00
zfcp_dbf.c [SCSI] zfcp: Remove scsi_cmnd->serial_number from debug traces 2010-10-07 17:25:26 -05:00
zfcp_dbf.h [SCSI] zfcp: Remove scsi_cmnd->serial_number from debug traces 2010-10-07 17:25:26 -05:00
zfcp_def.h [SCSI] zfcp: Replace status modifier functions. 2010-09-16 22:54:23 -04:00
zfcp_erp.c [SCSI] zfcp: Prevent usage w/o holding a reference 2010-12-09 09:41:21 -06:00
zfcp_ext.h [SCSI] zfcp: Replace status modifier functions. 2010-09-16 22:54:23 -04:00
zfcp_fc.c [SCSI] zfcp: Replace status modifier functions. 2010-09-16 22:54:23 -04:00
zfcp_fc.h [SCSI] zfcp: Use correct length for FCP_RSP_INFO 2010-10-25 09:42:38 -05:00
zfcp_fsf.c [SCSI] zfcp: Issue FCP command without holding SCSI host_lock 2010-12-09 09:41:23 -06:00
zfcp_fsf.h [SCSI] zfcp: Introduce experimental support for DIF/DIX 2010-07-28 09:48:56 -05:00
zfcp_qdio.c [S390] qdio: outbound tasklet scan threshold 2011-01-05 12:47:28 +01:00
zfcp_qdio.h [SCSI] zfcp: Introduce experimental support for DIF/DIX 2010-07-28 09:48:56 -05:00
zfcp_reqlist.h [SCSI] zfcp: Move FSF request tracking code to new file 2010-02-17 17:46:19 -06:00
zfcp_scsi.c [SCSI] zfcp: Issue FCP command without holding SCSI host_lock 2010-12-09 09:41:23 -06:00
zfcp_sysfs.c [SCSI] zfcp: Replace status modifier functions. 2010-09-16 22:54:23 -04:00
zfcp_unit.c [SCSI] zfcp: Call get_device on port before calling put_device 2010-10-25 09:42:37 -05:00