[SCSI] scsi_transport_iscsi: added support for host event

Added support to post kernel host event to application using
netlink interface.

Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index fa7ca4e..7f04731 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -166,6 +166,12 @@
 			      struct iscsi_transport *transport, uint32_t type,
 			      char *data, uint16_t data_size);
 
+extern void iscsi_post_host_event(uint32_t host_no,
+				  struct iscsi_transport *transport,
+				  enum iscsi_host_event_code code,
+				  uint32_t data_size,
+				  uint8_t *data);
+
 struct iscsi_cls_conn {
 	struct list_head conn_list;	/* item in connlist */
 	void *dd_data;			/* LLD private data */