[SCSI] qla4xxx: export mac as hw address

Export mac as hw address.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Cc: David C Somayajulu <david.somayajulu@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 35 insertions, 4 deletions

diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index e09fc4241970..01308e7ef2ae 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -60,6 +60,8 @@ static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn,
                                   enum iscsi_param param, char *buf);
 static int qla4xxx_sess_get_param(struct iscsi_cls_session *sess,
                                   enum iscsi_param param, char *buf);
+static int qla4xxx_host_get_param(struct Scsi_Host *shost,
+                                  enum iscsi_host_param param, char *buf);
 static void qla4xxx_conn_stop(struct iscsi_cls_conn *conn, int flag);
 static int qla4xxx_conn_start(struct iscsi_cls_conn *conn);
 static void qla4xxx_recovery_timedout(struct iscsi_cls_session *session);
@@ -99,16 +101,16 @@ static struct scsi_host_template qla4xxx_driver_template = {
 static struct iscsi_transport qla4xxx_iscsi_transport = {
         .owner                  = THIS_MODULE,
         .name                   = DRIVER_NAME,
-        .param_mask             = ISCSI_CONN_PORT |
-                                  ISCSI_CONN_ADDRESS |
-                                  ISCSI_TARGET_NAME |
-                                  ISCSI_TPGT,
+        .param_mask             = ISCSI_CONN_PORT | ISCSI_CONN_ADDRESS |
+                                  ISCSI_TARGET_NAME | ISCSI_TPGT,
+        .host_param_mask        = ISCSI_HOST_HWADDRESS,
         .sessiondata_size       = sizeof(struct ddb_entry),
         .host_template          = &qla4xxx_driver_template,
 
         .tgt_dscvr              = qla4xxx_tgt_dscvr,
         .get_conn_param         = qla4xxx_conn_get_param,
         .get_session_param      = qla4xxx_sess_get_param,
+        .get_host_param         = qla4xxx_host_get_param,
         .start_conn             = qla4xxx_conn_start,
         .stop_conn              = qla4xxx_conn_stop,
         .session_recovery_timedout = qla4xxx_recovery_timedout,
@@ -165,6 +167,35 @@ static void qla4xxx_conn_stop(struct iscsi_cls_conn *conn, int flag)
                 printk(KERN_ERR "iscsi: invalid stop flag %d\n", flag);
 }
 
+static ssize_t format_addr(char *buf, const unsigned char *addr, int len)
+{
+        int i;
+        char *cp = buf;
+
+        for (i = 0; i < len; i++)
+                cp += sprintf(cp, "%02x%c", addr[i],
+                              i == (len - 1) ? '\n' : ':');
+        return cp - buf;
+}
+
+
+static int qla4xxx_host_get_param(struct Scsi_Host *shost,
+                                  enum iscsi_host_param param, char *buf)
+{
+        struct scsi_qla_host *ha = to_qla_host(shost);
+        int len;
+
+        switch (param) {
+        case ISCSI_HOST_PARAM_HWADDRESS:
+                len = format_addr(buf, ha->my_mac, MAC_ADDR_LEN);
+                break;
+        default:
+                return -ENOSYS;
+        }
+
+        return len;
+}
+
 static int qla4xxx_sess_get_param(struct iscsi_cls_session *sess,
                                   enum iscsi_param param, char *buf)
 {