[SCSI] libfcoe: fix VN2VN N_Port_ID Beacon source MAC

FC-BB-6 v1.04 7.9.8.14 N_Port_ID Beacon:

"A N_Port_ID Beacon is multicast and uses the VN_Port MAC address as source
address."

Currently, libfcoe is using ENode MAC, this seems ok and functionality wise
not a problem in my back to back testing setup, however, just fix this to
make libfcoe VN2VN support more spec compliant.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/drivers/scsi/fcoe/fcoe_ctlr.c b/drivers/scsi/fcoe/fcoe_ctlr.c
index 249a106888d9..5a4c7250aa77 100644
--- a/drivers/scsi/fcoe/fcoe_ctlr.c
+++ b/drivers/scsi/fcoe/fcoe_ctlr.c
@@ -1883,7 +1883,13 @@ static void fcoe_ctlr_vn_send(struct fcoe_ctlr *fip,
         frame = (struct fip_frame *)skb->data;
         memset(frame, 0, len);
         memcpy(frame->eth.h_dest, dest, ETH_ALEN);
-        memcpy(frame->eth.h_source, fip->ctl_src_addr, ETH_ALEN);
+
+        if (sub == FIP_SC_VN_BEACON) {
+                hton24(frame->eth.h_source, FIP_VN_FC_MAP);
+                hton24(frame->eth.h_source + 3, fip->port_id);
+        } else {
+                memcpy(frame->eth.h_source, fip->ctl_src_addr, ETH_ALEN);
+        }
         frame->eth.h_proto = htons(ETH_P_FIP);
 
         frame->fip.fip_ver = FIP_VER_ENCAPS(FIP_VER);