diff options
| author | Quinn Tran <qutran@marvell.com> | 2021-10-26 04:54:08 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-10-26 23:52:00 -0400 |
| commit | 91f6f5fbe87ba834133fcc61d34881cb8ec9e518 (patch) | |
| tree | 7c6101bd1fd534acf3397bd4b619ee88d6f19eba /drivers/scsi/qla2xxx/qla_init.c | |
| parent | 6c9998ce4be2adddfb6753a73ade9df1e912550c (diff) | |
scsi: qla2xxx: edif: Reduce connection thrash
On ipsec start by remote port, target port may use RSCN to trigger
initiator to relogin. If driver is already in the process of a relogin,
then ignore the RSCN and allow the current relogin to continue. This
reduces thrashing of the connection.
Link: https://lore.kernel.org/r/20211026115412.27691-10-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_init.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_init.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 2f42abbea44d..ba589dd1d0d7 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -1793,8 +1793,28 @@ void qla2x00_handle_rscn(scsi_qla_host_t *vha, struct event_arg *ea) fcport->d_id.b24, fcport->port_name); return; } - fcport->scan_needed = 1; - fcport->rscn_gen++; + + if (vha->hw->flags.edif_enabled && vha->e_dbell.db_flags & EDB_ACTIVE) { + /* + * On ipsec start by remote port, Target port + * may use RSCN to trigger initiator to + * relogin. If driver is already in the + * process of a relogin, then ignore the RSCN + * and allow the current relogin to continue. + * This reduces thrashing of the connection. + */ + if (atomic_read(&fcport->state) == FCS_ONLINE) { + /* + * If state = online, then set scan_needed=1 to do relogin. + * Otherwise we're already in the middle of a relogin + */ + fcport->scan_needed = 1; + fcport->rscn_gen++; + } + } else { + fcport->scan_needed = 1; + fcport->rscn_gen++; + } } break; case RSCN_AREA_ADDR: |