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IB/core: Fix RoCE v1 multicast join logic issue 

During multicast join of RoCEv1, IGMP join state and max hop limit
were updated incorrectly. IGMP join should be sent and marked as
joined only on RoCEv2 after a successful join. Max hops should be
updated to the hop limit on RoCEv2 regardless of the join state.

Fixes: bee3c3c918 ('IB/cma: Join and leave multicast groups...')
Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
hifive-unleashed-5.1
Alex Vesker 2016-06-22 17:27:23 +03:00 committed by Doug Ledford
parent f336ae0314
commit c65f6c5a36
1 changed files with 4 additions and 4 deletions
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8
drivers/infiniband/core/cma.c
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@ -3878,12 +3878,12 @@ static int cma_iboe_join_multicast(struct rdma_id_private *id_priv,
gid_type = id_priv->cma_dev->default_gid_type[id_priv->id.port_num -
rdma_start_port(id_priv->cma_dev->device)];
if (addr->sa_family == AF_INET) {
if (gid_type == IB_GID_TYPE_ROCE_UDP_ENCAP)
if (gid_type == IB_GID_TYPE_ROCE_UDP_ENCAP) {
mc->multicast.ib->rec.hop_limit = IPV6_DEFAULT_HOPLIMIT;
err = cma_igmp_send(ndev, &mc->multicast.ib->rec.mgid,
true);
if (!err) {
mc->igmp_joined = true;
mc->multicast.ib->rec.hop_limit = IPV6_DEFAULT_HOPLIMIT;
if (!err)
mc->igmp_joined = true;
}
} else {
if (gid_type == IB_GID_TYPE_ROCE_UDP_ENCAP)