[SCSI] iscsi class: Add new NETLINK_ISCSI messages for cnic/bnx2i driver.

Add ISCSI_NETLINK messages for iSCSI NICs to get information such as
path from userspace.  Original iscsid messages are now always sent as
multicast to group 1.  The new messages are sent to group 2.

The multicast changes were made by Mike Christie.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index 8cb7a31d9961..349c7f30720d 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -133,6 +133,7 @@ struct iscsi_transport {
         void (*ep_disconnect) (struct iscsi_endpoint *ep);
         int (*tgt_dscvr) (struct Scsi_Host *shost, enum iscsi_tgt_dscvr type,
                           uint32_t enable, struct sockaddr *dst_addr);
+        int (*set_path) (struct Scsi_Host *shost, struct iscsi_path *params);
 };
 
 /*
@@ -149,6 +150,10 @@ extern void iscsi_conn_error_event(struct iscsi_cls_conn *conn,
 extern int iscsi_recv_pdu(struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr,
                           char *data, uint32_t data_size);
 
+extern int iscsi_offload_mesg(struct Scsi_Host *shost,
+                              struct iscsi_transport *transport, uint32_t type,
+                              char *data, uint16_t data_size);
+
 struct iscsi_cls_conn {
         struct list_head conn_list;     /* item in connlist */
         void *dd_data;                  /* LLD private data */