diff options
| author |   Erez Shitrit <erezsh@mellanox.com> | 2016-06-04 15:15:19 +0300 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2016-06-07 10:49:48 -0400 |
| commit | 61c78eea9516a921799c17b4c20558e2aa780fd3 (patch) | |
| tree | d690bdcbafdce9aefa4defd18aa86ee245073440 /drivers | |
| parent | IB/mlx5: Fix alternate path code (diff) | |
| download | linux-dev-61c78eea9516a921799c17b4c20558e2aa780fd3.tar.xz linux-dev-61c78eea9516a921799c17b4c20558e2aa780fd3.zip | |
IB/IPoIB: Don't update neigh validity for unresolved entries
ipoib_neigh_get unconditionally updates the "alive" variable member on
any packet send. This prevents the neighbor garbage collection from
cleaning out a dead neighbor entry if we are still queueing packets
for it. If the queue for this neighbor is full, then don't update the
alive timestamp. That way the neighbor can time out even if packets
are still being queued as long as none of them are being sent.
Fixes: b63b70d87741 ("IPoIB: Use a private hash table for path lookup in xmit path")
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_main.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 248da5015093..5f58c41ef787 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -1206,7 +1206,9 @@ struct ipoib_neigh *ipoib_neigh_get(struct net_device *dev, u8 *daddr) neigh = NULL; goto out_unlock; } - neigh->alive = jiffies; + + if (likely(skb_queue_len(&neigh->queue) < IPOIB_MAX_PATH_REC_QUEUE)) + neigh->alive = jiffies; goto out_unlock; } } |