[SCSI] qla2xxx: Use proper HA during asynchrounous event handling.

Changes are added to the driver so that it can behave properly
upon having asynchronous events, for example, addition of target
devices to the VPs.

Signed-off-by: Seokmann Ju <seokmann.ju@qlogic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

drivers/scsi/qla2xxx/qla_isr.c

@@ -272,6 +272,8 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb)
 	uint32_t	rscn_entry, host_pid;
 	uint8_t		rscn_queue_index;
 	unsigned long	flags;
+	scsi_qla_host_t	*vha;
+	int		i;
 
 	/* Setup to process RIO completion. */
 	handle_cnt = 0;
@@ -542,6 +544,18 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb)
 		break;
 
 	case MBA_PORT_UPDATE:		/* Port database update */
+		if ((ha->flags.npiv_supported) && (ha->num_vhosts)) {
+			for_each_mapped_vp_idx(ha, i) {
+				list_for_each_entry(vha, &ha->vp_list,
+				    vp_list) {
+					if ((mb[3] & 0xff)
+					    == vha->vp_idx) {
+						ha = vha;
+						break;
+					}
+				}
+			}
+		}
 		/*
 		 * If PORT UPDATE is global (recieved LIP_OCCURED/LIP_RESET
 		 * event etc. earlier indicating loop is down) then process
@@ -576,12 +590,18 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb)
 		break;
 
 	case MBA_RSCN_UPDATE:		/* State Change Registration */
-		/* Check if the Vport has issued a SCR */
-		if (ha->parent && test_bit(VP_SCR_NEEDED, &ha->vp_flags))
-			break;
-		/* Only handle SCNs for our Vport index. */
-		if (ha->flags.npiv_supported && ha->vp_idx != mb[3])
-			break;
+		if ((ha->flags.npiv_supported) && (ha->num_vhosts)) {
+			for_each_mapped_vp_idx(ha, i) {
+				list_for_each_entry(vha, &ha->vp_list,
+				    vp_list) {
+					if ((mb[3] & 0xff)
+					    == vha->vp_idx) {
+						ha = vha;
+						break;
+					}
+				}
+			}
+		}
 
 		DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n",
 		    ha->host_no));