[SCSI] qla2xxx: Clear any stale login-states during an adapter reset.
authorAndrew Vasquez <andrew.vasquez@qlogic.com>
Wed, 23 Feb 2011 23:27:13 +0000 (15:27 -0800)
committerJames Bottomley <James.Bottomley@suse.de>
Fri, 25 Feb 2011 17:58:18 +0000 (12:58 -0500)
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>
drivers/scsi/qla2xxx/qla_init.c

index 6370cdc193d5d2b0916ba8121330652d47fa3b01..9b6e39dc0d794e461113d17ff2f45587dac2f784 100644 (file)
@@ -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))