IPoIB: Handle bonding failover race for connected neighbours too

Move up the code that checks for a situation where the remote GID
stored in the ipoib_neigh is different than the one present in the
neighbour (handle gratuitous ARP) or that a bonding fail over has
happened but the neighbour still has a pointer to an ipoib_neigh
created by a different device than the current slave.  This will cause
the driver to apply the check also for connected mode neighbours.

Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index a082466..886a08c 100644 (file)
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -680,12 +680,7 @@ static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
                neigh = *to_ipoib_neigh(skb->dst->neighbour);
 
-               if (ipoib_cm_get(neigh)) {
-                       if (ipoib_cm_up(neigh)) {
-                               ipoib_cm_send(dev, skb, ipoib_cm_get(neigh));
-                               goto out;
-                       }
-               } else if (neigh->ah) {
+               if (neigh->ah)
                        if (unlikely((memcmp(&neigh->dgid.raw,
                                            skb->dst->neighbour->ha + 4,
                                            sizeof(union ib_gid))) ||
@@ -706,6 +701,12 @@ static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev)
                                goto out;
                        }
 
+               if (ipoib_cm_get(neigh)) {
+                       if (ipoib_cm_up(neigh)) {
+                               ipoib_cm_send(dev, skb, ipoib_cm_get(neigh));
+                               goto out;
+                       }
+               } else if (neigh->ah) {
                        ipoib_send(dev, skb, neigh->ah, IPOIB_QPN(skb->dst->neighbour->ha));
                        goto out;
                }