[SCSI] qla2xxx: Clear any stale login-states during an adapter reset.

By not clearing the 'login needed' nor 'login outstanding' states
for an fcport after a big-hammer (adapter reset), the driver may
not properly perform a PLOGI/PRLI sequence (and lose visibility
to the rport) during a follow-on SNS scan.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 17 insertions, 0 deletions

diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 6370cdc193d5..9b6e39dc0d79 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -3943,6 +3943,7 @@ qla2x00_abort_isp_cleanup(scsi_qla_host_t *vha)
         struct qla_hw_data *ha = vha->hw;
         struct scsi_qla_host *vp;
         unsigned long flags;
+        fc_port_t *fcport;
 
         vha->flags.online = 0;
         ha->flags.chip_reset_done = 0;
@@ -3978,6 +3979,22 @@ qla2x00_abort_isp_cleanup(scsi_qla_host_t *vha)
                             LOOP_DOWN_TIME);
         }
 
+        /* Clear all async request states across all VPs. */
+        list_for_each_entry(fcport, &vha->vp_fcports, list)
+                fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
+        spin_lock_irqsave(&ha->vport_slock, flags);
+        list_for_each_entry(vp, &ha->vp_list, list) {
+                atomic_inc(&vp->vref_count);
+                spin_unlock_irqrestore(&ha->vport_slock, flags);
+
+                list_for_each_entry(fcport, &vp->vp_fcports, list)
+                        fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
+
+                spin_lock_irqsave(&ha->vport_slock, flags);
+                atomic_dec(&vp->vref_count);
+        }
+        spin_unlock_irqrestore(&ha->vport_slock, flags);
+
         if (!ha->flags.eeh_busy) {
                 /* Make sure for ISP 82XX IO DMA is complete */
                 if (IS_QLA82XX(ha))