OpenCloudOS-Kernel/drivers/scsi/device_handler
Moger, Babu 410f02d813 [SCSI] scsi_dh_alua: Retry the check-condition in case Mode Parameters Changed
This patch adds a check-condition in scsi_dh_alua handler for a retry.
Sometimes, I have seen attach failing due to this check-condition with
following error messages on NetApp E series storage.

Dec  7 15:31:01 nilgiris kernel: [102979.696673] scsi 3:0:2:9: alua: port group 00 rel port 01
Dec  7 15:31:01 nilgiris kernel: [102979.697082] scsi 3:0:2:9: alua: rtpg failed with 8000002
Dec  7 15:31:01 nilgiris kernel: [102979.697086] scsi 3:0:2:9: alua: rtpg sense code 06/2a/01
Dec  7 15:31:01 nilgiris kernel: [102979.697088] scsi 3:0:2:9: alua: not attached

Signed-off-by: Babu Moger <babu.moger@netapp.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-01-10 17:01:24 -06:00
..
Kconfig [SCSI] scsi_dh: add generic SPC-3 alua handler 2008-07-26 15:14:52 -04:00
Makefile [SCSI] scsi_dh: add generic SPC-3 alua handler 2008-07-26 15:14:52 -04:00
scsi_dh.c [SCSI] scsi_dh: code cleanup and remove the references to scsi_dev_info 2011-12-15 10:55:00 +04:00
scsi_dh_alua.c [SCSI] scsi_dh_alua: Retry the check-condition in case Mode Parameters Changed 2012-01-10 17:01:24 -06:00
scsi_dh_emc.c [SCSI] scsi_dh_emc: Add a match function for emc device handler 2011-12-15 10:55:00 +04:00
scsi_dh_hp_sw.c [SCSI] scsi_dh_hp_sw: Adding the match function for hp_sw device handler 2011-12-15 10:55:00 +04:00
scsi_dh_rdac.c [SCSI] scsi_dh_rdac: Fix error path 2012-01-10 17:01:18 -06:00