diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_main.c | 49 |
1 files changed, 34 insertions, 15 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 7301a79c4058..c182604076e1 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -856,6 +856,23 @@ static void path_rec_completion(int status, } } +static void init_path_rec(struct ipoib_dev_priv *priv, struct ipoib_path *path, + void *gid) +{ + path->dev = priv->dev; + + if (rdma_cap_opa_ah(priv->ca, priv->port)) + path->pathrec.rec_type = SA_PATH_REC_TYPE_OPA; + else + path->pathrec.rec_type = SA_PATH_REC_TYPE_IB; + + memcpy(path->pathrec.dgid.raw, gid, sizeof(union ib_gid)); + path->pathrec.sgid = priv->local_gid; + path->pathrec.pkey = cpu_to_be16(priv->pkey); + path->pathrec.numb_path = 1; + path->pathrec.traffic_class = priv->broadcast->mcmember.traffic_class; +} + static struct ipoib_path *path_rec_create(struct net_device *dev, void *gid) { struct ipoib_dev_priv *priv = ipoib_priv(dev); @@ -868,21 +885,11 @@ static struct ipoib_path *path_rec_create(struct net_device *dev, void *gid) if (!path) return NULL; - path->dev = dev; - skb_queue_head_init(&path->queue); INIT_LIST_HEAD(&path->neigh_list); - if (rdma_cap_opa_ah(priv->ca, priv->port)) - path->pathrec.rec_type = SA_PATH_REC_TYPE_OPA; - else - path->pathrec.rec_type = SA_PATH_REC_TYPE_IB; - memcpy(path->pathrec.dgid.raw, gid, sizeof (union ib_gid)); - path->pathrec.sgid = priv->local_gid; - path->pathrec.pkey = cpu_to_be16(priv->pkey); - path->pathrec.numb_path = 1; - path->pathrec.traffic_class = priv->broadcast->mcmember.traffic_class; + init_path_rec(priv, path, gid); return path; } @@ -1011,6 +1018,10 @@ static void unicast_arp_send(struct sk_buff *skb, struct net_device *dev, spin_lock_irqsave(&priv->lock, flags); + /* no broadcast means that all paths are (going to be) not valid */ + if (!priv->broadcast) + goto drop_and_unlock; + path = __path_find(dev, phdr->hwaddr + 4); if (!path || !path->valid) { int new_path = 0; @@ -1020,6 +1031,10 @@ static void unicast_arp_send(struct sk_buff *skb, struct net_device *dev, new_path = 1; } if (path) { + if (!new_path) + /* make sure there is no changes in the existing path record */ + init_path_rec(priv, path, phdr->hwaddr + 4); + if (skb_queue_len(&path->queue) < IPOIB_MAX_PATH_REC_QUEUE) { push_pseudo_header(skb, phdr->hwaddr); __skb_queue_tail(&path->queue, skb); @@ -1036,8 +1051,7 @@ static void unicast_arp_send(struct sk_buff *skb, struct net_device *dev, } else __path_add(dev, path); } else { - ++dev->stats.tx_dropped; - dev_kfree_skb_any(skb); + goto drop_and_unlock; } spin_unlock_irqrestore(&priv->lock, flags); @@ -1057,11 +1071,16 @@ static void unicast_arp_send(struct sk_buff *skb, struct net_device *dev, push_pseudo_header(skb, phdr->hwaddr); __skb_queue_tail(&path->queue, skb); } else { - ++dev->stats.tx_dropped; - dev_kfree_skb_any(skb); + goto drop_and_unlock; } spin_unlock_irqrestore(&priv->lock, flags); + return; + +drop_and_unlock: + ++dev->stats.tx_dropped; + dev_kfree_skb_any(skb); + spin_unlock_irqrestore(&priv->lock, flags); } static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev) |