fcoe-utils/0013-Fallback-to-default-MAC-address-for-FIP.patch

From f36193036751f88c6208e7f0feda36116978a1af Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Thu, 30 Jun 2016 07:48:38 +0200
Subject: Fallback to default MAC address for FIP

FIP is a normal ethernet protocol, and doesn't rely on DCB to
be active or supported. So we should default to the NIC MAC
if no SAN MAC is present.

Signed-off-by: Hannes Reinecke <hare@suse.com>
---
 fcoemon.c     | 4 ++--
 fipvlan.c     | 2 +-
 include/fip.h | 2 +-
 lib/fip.c     | 8 ++++----
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/fcoemon.c b/fcoemon.c
index 32ba30c..1df3d82 100644
--- a/fcoemon.c
+++ b/fcoemon.c
@@ -1057,7 +1057,7 @@ static int fcm_vlan_disc_socket(struct fcoe_port *p)
 	int fd;
 	int origdev = 1;
 
-	fd = fip_socket(p->ifindex, FIP_NONE);
+	fd = fip_socket(p->ifindex, p->mac, FIP_NONE);
 	if (fd < 0) {
 		FCM_LOG_ERR(errno, "socket error");
 		return fd;
@@ -1496,7 +1496,7 @@ static void init_fip_vn2vn_responder(struct fcoe_port *p)
 	if (p->fip_responder_socket >= 0)
 		return;
 
-	s = fip_socket(p->ifindex, FIP_ALL_VN2VN);
+	s = fip_socket(p->ifindex, p->mac, FIP_ALL_VN2VN);
 	if (s < 0) {
 		FCM_LOG_ERR(errno, "%s: Failed to get fip socket\n", p->ifname);
 		return;
diff --git a/fipvlan.c b/fipvlan.c
index 4acf3d1..3662885 100644
--- a/fipvlan.c
+++ b/fipvlan.c
@@ -824,7 +824,7 @@ static int probe_fip_interface(struct iff *iff)
 
 	if (iff->ps < 0) {
 		iff->fip_ready = false;
-		iff->ps = fip_socket(iff->ifindex, FIP_NONE);
+		iff->ps = fip_socket(iff->ifindex, iff->mac_addr, FIP_NONE);
 		if (iff->ps < 0) {
 			FIP_LOG_DBG("if %d not ready\n", iff->ifindex);
 			return 0;
diff --git a/include/fip.h b/include/fip.h
index 443d3c4..0b6385c 100644
--- a/include/fip.h
+++ b/include/fip.h
@@ -144,7 +144,7 @@ struct fip_tlv_vlan {
 
 /* libutil / fip.c functionality */
 
-int fip_socket(int ifindex, enum fip_multi multi);
+int fip_socket(int ifindex, unsigned char *mac, enum fip_multi multi);
 
 /* FIP message handler, passed into fip_recv */
 typedef int fip_handler(struct fiphdr *fh, struct sockaddr_ll *sa, void *arg);
diff --git a/lib/fip.c b/lib/fip.c
index 6657b61..b7f687b 100644
--- a/lib/fip.c
+++ b/lib/fip.c
@@ -122,13 +122,13 @@ fip_socket_add_addr(int s, int ifindex, bool add, const __u8 *mac, bool multi)
  * @ifindex: network interface index to send on
  * @add: 1 to add 0 to del
  */
-static int fip_socket_sanmac(int s, int ifindex, int add)
+static int fip_socket_sanmac(int s, int ifindex, unsigned char *mac, int add)
 {
 	unsigned char smac[ETHER_ADDR_LEN];
 
 	if (fip_get_sanmac(ifindex, smac)) {
 		FIP_LOG_DBG("%s: no sanmac, ifindex %d\n", __func__, ifindex);
-		return -ENXIO;
+		memcpy(smac, mac, ETHER_ADDR_LEN);
 	}
 
 	return fip_socket_add_addr(s, ifindex, add, smac, false);
@@ -200,7 +200,7 @@ static void drain_socket(int s)
  * @ifindex: ifindex of netdevice to bind to
  * @multi: Indication of any multicast address to bind to
  */
-int fip_socket(int ifindex, enum fip_multi multi)
+int fip_socket(int ifindex, unsigned char *mac, enum fip_multi multi)
 {
 	struct sockaddr_ll sa = {
 		.sll_family = AF_PACKET,
@@ -214,7 +214,7 @@ int fip_socket(int ifindex, enum fip_multi multi)
 	if (s < 0)
 		return s;
 
-	rc = fip_socket_sanmac(s, ifindex, 1);
+	rc = fip_socket_sanmac(s, ifindex, mac, 1);
 	if (rc < 0) {
 		close(s);
 		return rc;
-- 
2.6.6