fnic: Using rport->dd_data to check rport online instead of rport_lookup.
authorSatish Kharat <satishkh@cisco.com>
Fri, 18 Mar 2016 18:22:50 +0000 (11:22 -0700)
committerMartin K. Petersen <martin.petersen@oracle.com>
Mon, 11 Apr 2016 20:57:09 +0000 (16:57 -0400)
commit1b6ac5e3ff354652ca59240e1ba8b2d22539df07
tree0db370df3cab25a11c960d365b6eb7756e111c20
parenta36f5dd07dd9098d43d1137ec7a2d6b92aa6d591
fnic: Using rport->dd_data to check rport online instead of rport_lookup.

When issuing I/O we check if rport is online through libfc
rport_lookup() function which needs to be protected by mutex lock that
cannot acquired in I/O context. The change is to use midlayer remote
port s dd_data which is preserved until its devloss timeout and no
protection is required.  The the scsi_cmnd error code is expected to be
in the left 16 bits of the result field. Changed to correct this.  Fnic
driver version changed from 1.6.0.20 to 1.6.0.21

Signed-off-by: Satish Kharat <satishkh@cisco.com>
Signed-off-by: Sesidhar Baddela <sebaddel@cisco.com>
Reviewed-by: Ewan Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/scsi/fnic/fnic.h
drivers/scsi/fnic/fnic_scsi.c