[SCSI] iscsi_transport: export hw address

Add hw address sysfs file.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

include/scsi/scsi_transport_iscsi.h

@@ -79,7 +79,8 @@ struct iscsi_transport {
 	char *name;
 	unsigned int caps;
 	/* LLD sets this to indicate what values it can export to sysfs */
-	unsigned int param_mask;
+	uint64_t param_mask;
+	uint64_t host_param_mask;
 	struct scsi_host_template *host_template;
 	/* LLD connection data size */
 	int conndata_size;
@@ -105,6 +106,8 @@ struct iscsi_transport {
 			       enum iscsi_param param, char *buf);
 	int (*get_session_param) (struct iscsi_cls_session *session,
 				  enum iscsi_param param, char *buf);
+	int (*get_host_param) (struct Scsi_Host *shost,
+				enum iscsi_host_param param, char *buf);
 	int (*send_pdu) (struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr,
 			 char *data, uint32_t data_size);
 	void (*get_stats) (struct iscsi_cls_conn *conn,