[SCSI] iscsi_transport: added new iscsi_param to display target alias in sysfs

Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

3 files changed, 13 insertions, 3 deletions

diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c
index e6b73b9fcc5a..266ebd45396d 100644
--- a/drivers/scsi/qla4xxx/ql4_init.c
+++ b/drivers/scsi/qla4xxx/ql4_init.c
@@ -594,6 +594,9 @@ static int qla4xxx_update_ddb_entry(struct scsi_qla_host *ha,
         memcpy(&ddb_entry->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
                min(sizeof(ddb_entry->iscsi_name),
                    sizeof(fw_ddb_entry->iscsi_name)));
+        memcpy(&ddb_entry->iscsi_alias[0], &fw_ddb_entry->iscsi_alias[0],
+               min(sizeof(ddb_entry->iscsi_alias),
+                   sizeof(fw_ddb_entry->iscsi_alias)));
         memcpy(&ddb_entry->ip_addr[0], &fw_ddb_entry->ip_addr[0],
                min(sizeof(ddb_entry->ip_addr), sizeof(fw_ddb_entry->ip_addr)));
 
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index daf5a4bf9b0a..821384147a41 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -126,7 +126,8 @@ static struct iscsi_transport qla4xxx_iscsi_transport = {
         .caps                   = CAP_FW_DB | CAP_SENDTARGETS_OFFLOAD |
                                   CAP_DATA_PATH_OFFLOAD,
         .param_mask             = ISCSI_CONN_PORT | ISCSI_CONN_ADDRESS |
-                                  ISCSI_TARGET_NAME | ISCSI_TPGT,
+                                  ISCSI_TARGET_NAME | ISCSI_TPGT |
+                                  ISCSI_TARGET_ALIAS,
         .host_param_mask        = ISCSI_HOST_HWADDRESS |
                                   ISCSI_HOST_IPADDRESS |
                                   ISCSI_HOST_INITIATOR_NAME,
@@ -210,6 +211,10 @@ static int qla4xxx_sess_get_param(struct iscsi_cls_session *sess,
         case ISCSI_PARAM_TPGT:
                 len = sprintf(buf, "%u\n", ddb_entry->tpgt);
                 break;
+        case ISCSI_PARAM_TARGET_ALIAS:
+                len = snprintf(buf, PAGE_SIZE - 1, "%s\n",
+                    ddb_entry->iscsi_alias);
+                break;
         default:
                 return -ENOSYS;
         }
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 1e6d4793542c..b9aec304872c 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -31,7 +31,7 @@
 #include <scsi/scsi_transport_iscsi.h>
 #include <scsi/iscsi_if.h>
 
-#define ISCSI_SESSION_ATTRS 22
+#define ISCSI_SESSION_ATTRS 23
 #define ISCSI_CONN_ATTRS 13
 #define ISCSI_HOST_ATTRS 4
 
@@ -1763,7 +1763,8 @@ iscsi_session_attr(abort_tmo, ISCSI_PARAM_ABORT_TMO, 0);
 iscsi_session_attr(lu_reset_tmo, ISCSI_PARAM_LU_RESET_TMO, 0);
 iscsi_session_attr(tgt_reset_tmo, ISCSI_PARAM_TGT_RESET_TMO, 0);
 iscsi_session_attr(ifacename, ISCSI_PARAM_IFACE_NAME, 0);
-iscsi_session_attr(initiatorname, ISCSI_PARAM_INITIATOR_NAME, 0)
+iscsi_session_attr(initiatorname, ISCSI_PARAM_INITIATOR_NAME, 0);
+iscsi_session_attr(targetalias, ISCSI_PARAM_TARGET_ALIAS, 0);
 
 static ssize_t
 show_priv_session_state(struct device *dev, struct device_attribute *attr,
@@ -2006,6 +2007,7 @@ iscsi_register_transport(struct iscsi_transport *tt)
         SETUP_SESSION_RD_ATTR(tgt_reset_tmo,ISCSI_TGT_RESET_TMO);
         SETUP_SESSION_RD_ATTR(ifacename, ISCSI_IFACE_NAME);
         SETUP_SESSION_RD_ATTR(initiatorname, ISCSI_INITIATOR_NAME);
+        SETUP_SESSION_RD_ATTR(targetalias, ISCSI_TARGET_ALIAS);
         SETUP_PRIV_SESSION_RD_ATTR(recovery_tmo);
         SETUP_PRIV_SESSION_RD_ATTR(state);