[SCSI] qla2xxx: Properly re-register FC4/FDMI after physical and logical link disruptions.

Original code would not register FC4 nor FDMI information after a
logical tear-down of an VFC link.  Code now triggers registration
date during processing of a 'Report ID Acquisition IOCB', which
is submitted after a FLOGI or FDISC completes.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 791f792..05d595d 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -2782,8 +2782,10 @@
 		    vp_idx, MSB(stat),
 		    rptid_entry->port_id[2], rptid_entry->port_id[1],
 		    rptid_entry->port_id[0]));
-		if (vp_idx == 0)
-			return;
+
+		vp = vha;
+		if (vp_idx == 0 && (MSB(stat) != 1))
+			goto reg_needed;
 
 		if (MSB(stat) == 1) {
 			DEBUG2(printk("scsi(%ld): Could not acquire ID for "
@@ -2806,8 +2808,11 @@
 		 * response queue. Handle it in dpc context.
 		 */
 		set_bit(VP_IDX_ACQUIRED, &vp->vp_flags);
-		set_bit(VP_DPC_NEEDED, &vha->dpc_flags);
 
+reg_needed:
+		set_bit(REGISTER_FC4_NEEDED, &vp->dpc_flags);
+		set_bit(REGISTER_FDMI_NEEDED, &vp->dpc_flags);
+		set_bit(VP_DPC_NEEDED, &vha->dpc_flags);
 		qla2xxx_wake_dpc(vha);
 	}
 }