[SCSI] qla2xxx: Do not allow ELS Passthru commands for ISP23xx adapters

Signed-off-by: Harish Zunjarrao <harish.zunjarrao@qlogic.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 24 insertions, 13 deletions

diff --git a/drivers/scsi/qla2xxx/qla_bsg.c b/drivers/scsi/qla2xxx/qla_bsg.c
index 04ead0620d5..6b863f789c4 100644
--- a/drivers/scsi/qla2xxx/qla_bsg.c
+++ b/drivers/scsi/qla2xxx/qla_bsg.c
@@ -229,7 +229,7 @@ static int
 qla2x00_process_els(struct fc_bsg_job *bsg_job)
 {
         struct fc_rport *rport;
-        fc_port_t *fcport;
+        fc_port_t *fcport = NULL;
         struct Scsi_Host *host;
         scsi_qla_host_t *vha;
         struct qla_hw_data *ha;
@@ -240,6 +240,29 @@ qla2x00_process_els(struct fc_bsg_job *bsg_job)
         uint16_t nextlid = 0;
         struct srb_ctx *els;
 
+        if (bsg_job->request->msgcode == FC_BSG_RPT_ELS) {
+                rport = bsg_job->rport;
+                fcport = *(fc_port_t **) rport->dd_data;
+                host = rport_to_shost(rport);
+                vha = shost_priv(host);
+                ha = vha->hw;
+                type = "FC_BSG_RPT_ELS";
+        } else {
+                host = bsg_job->shost;
+                vha = shost_priv(host);
+                ha = vha->hw;
+                type = "FC_BSG_HST_ELS_NOLOGIN";
+        }
+
+        /* pass through is supported only for ISP 4Gb or higher */
+        if (!IS_FWI2_CAPABLE(ha)) {
+                DEBUG2(qla_printk(KERN_INFO, ha,
+                    "scsi(%ld):ELS passthru not supported for ISP23xx based "
+                    "adapters\n", vha->host_no));
+                rval = -EPERM;
+                goto done;
+        }
+
         /*  Multiple SG's are not supported for ELS requests */
         if (bsg_job->request_payload.sg_cnt > 1 ||
                 bsg_job->reply_payload.sg_cnt > 1) {
@@ -254,13 +277,6 @@ qla2x00_process_els(struct fc_bsg_job *bsg_job)
 
         /* ELS request for rport */
         if (bsg_job->request->msgcode == FC_BSG_RPT_ELS) {
-                rport = bsg_job->rport;
-                fcport = *(fc_port_t **) rport->dd_data;
-                host = rport_to_shost(rport);
-                vha = shost_priv(host);
-                ha = vha->hw;
-                type = "FC_BSG_RPT_ELS";
-
                 /* make sure the rport is logged in,
                  * if not perform fabric login
                  */
@@ -272,11 +288,6 @@ qla2x00_process_els(struct fc_bsg_job *bsg_job)
                         goto done;
                 }
         } else {
-                host = bsg_job->shost;
-                vha = shost_priv(host);
-                ha = vha->hw;
-                type = "FC_BSG_HST_ELS_NOLOGIN";
-
                 /* Allocate a dummy fcport structure, since functions
                  * preparing the IOCB and mailbox command retrieves port
                  * specific information from fcport structure. For Host based