[SCSI] qla2xxx: Check alternate 'reason' code during GPSC status handling.

Some switches return 0x09 (Command not supported) as the reason
code for GPSC failure.  Check for this code, and disable
additional GPSC queries if found.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

drivers/scsi/qla2xxx/qla_def.h

@@ -1611,6 +1611,7 @@ typedef struct fc_port {
 #define CT_ACCEPT_RESPONSE	0x8002
 #define CT_REASON_INVALID_COMMAND_CODE	0x01
 #define CT_REASON_CANNOT_PERFORM	0x09
+#define CT_REASON_COMMAND_UNSUPPORTED	0x0b
 #define CT_EXPL_ALREADY_REGISTERED	0x10
 
 #define NS_N_PORT_TYPE	0x01

drivers/scsi/qla2xxx/qla_gs.c

@@ -1841,8 +1841,10 @@ qla2x00_gpsc(scsi_qla_host_t *ha, sw_info_t *list)
 		    "GPSC")) != QLA_SUCCESS) {
 			/* FM command unsupported? */
 			if (rval == QLA_INVALID_COMMAND &&
-			    ct_rsp->header.reason_code ==
-			    CT_REASON_INVALID_COMMAND_CODE) {
+			    (ct_rsp->header.reason_code ==
+				CT_REASON_INVALID_COMMAND_CODE ||
+			     ct_rsp->header.reason_code ==
+				CT_REASON_COMMAND_UNSUPPORTED)) {
 				DEBUG2(printk("scsi(%ld): GPSC command "
 				    "unsupported, disabling query...\n",
 				    ha->host_no));