scsi: libfc: reset exchange manager during LOGO handling

scsi: libfc: reset exchange manager during LOGO handling

FC-LS mandates that we should invalidate all sequences before sending a
LOGO. And we should set the event to RPORT_EV_STOP when a LOGO request
has been received to signal that all exchanges are terminated.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Chad Dupuis <chad.dupuis@qlogic.com>
Tested-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
OraBug: 27363267
(cherry picked from commit 649eb8693857e9b9fca009fba4eb7e80f9f3a326)
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Fred Herard <fred.herard@oracle.com>
Signed-off-by: Rajan Shanmugavelu <rajan.shanmugavelu@oracle.com>
Signed-off-by: Brian Maly <brian.maly@oracle.com>