linux/drivers/s390/scsi
Christof Schmitt c2af7545aa [SCSI] zfcp: Do not wait for SBALs on stopped queue
Trying to read the FC host statistics on an offline adapter results in
a 5 seconds wait. Reading the statistics tries to issue an exchange
port data request which first waits up to 5 seconds for an entry in
the request queue.

Change the strategy for getting a free SBAL to exit when the queue is
stopped. Reading the statistics will then fail without the wait.

Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-21 15:05:07 -07:00
..
Makefile
zfcp_aux.c [SCSI] zfcp: Use status_read_buf_num provided by FCP channel 2010-05-02 15:42:33 -04:00
zfcp_ccw.c [SCSI] zfcp: Rename sysfs_device attribute to dev in zfcp_unit and zfcp_port 2010-02-17 17:46:30 -06:00
zfcp_cfdc.c [S390] avoid default_llseek in s390 drivers 2010-05-17 10:00:16 +02:00
zfcp_dbf.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
zfcp_dbf.h [SCSI] zfcp: Move scsi result tracing decision to zfcp_dbf.h 2010-02-17 17:46:31 -06:00
zfcp_def.h [SCSI] zfcp: Use status_read_buf_num provided by FCP channel 2010-05-02 15:42:33 -04:00
zfcp_erp.c [SCSI] zfcp: Use status_read_buf_num provided by FCP channel 2010-05-02 15:42:33 -04:00
zfcp_ext.h [SCSI] zfcp: Move sbal_get function to zfcp_qdio.c 2010-05-02 15:42:32 -04:00
zfcp_fc.c [SCSI] zfcp: Zero memory for gpn_ft and adisc requests 2010-05-02 15:42:34 -04:00
zfcp_fc.h [SCSI] zfcp: Set hardware timeout as requested by BSG request. 2010-01-17 12:40:13 -06:00
zfcp_fsf.c [SCSI] zfcp: Do not wait for SBALs on stopped queue 2010-07-21 15:05:07 -07:00
zfcp_fsf.h [SCSI] zfcp: Use status_read_buf_num provided by FCP channel 2010-05-02 15:42:33 -04:00
zfcp_qdio.c [SCSI] zfcp: Do not wait for SBALs on stopped queue 2010-07-21 15:05:07 -07:00
zfcp_qdio.h [SCSI] zfcp: Move sbale handling to zfcp_qdio files 2010-05-02 15:42:30 -04:00
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: Move sbale handling to zfcp_qdio files 2010-05-02 15:42:30 -04:00
zfcp_sysfs.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00