[SCSI] libfc: add FLOGI state to rport for VN2VN

The FIP proposal for VN_port to VN_port point-to-multipoint
operation requires a FLOGI be sent to each remote port.
The FLOGI is sent with the assigned S_ID and D_IDs of the
local and remote ports.  This and the response get
FIP-encapsulated for Ethernet.

Add FLOGI state to the remote port state machine.
This will be skipped if not in point-to-multipoint mode.

To reduce a little duplication between PLOGI and FLOGI
response handling, added fc_rport_login_complete(), which
handles the parameters for the rdata struct.

Signed-off-by: Joe Eykholt <jeykholt@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

drivers/scsi/libfc/fc_lport.c

@@ -906,10 +906,10 @@ static void fc_lport_recv_req(struct fc_lport *lport, struct fc_seq *sp,
 		recv = lport->tt.rport_recv_req;
 		switch (fc_frame_payload_op(fp)) {
 		case ELS_FLOGI:
-			recv = fc_lport_recv_flogi_req;
+			if (!lport->point_to_multipoint)
+				recv = fc_lport_recv_flogi_req;
 			break;
 		case ELS_LOGO:
-			fh = fc_frame_header_get(fp);
 			if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI)
 				recv = fc_lport_recv_logo_req;
 			break;