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[PATCH 3.2 66/87] IB/mlx4: Initialize hop_limit when creating address handle

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  [PATCH 3.2 66/87] IB/mlx4: Initialize hop_limit when creating  address handle Ben Hutchings <ben@decadent.org.uk> - 2016-02-09 01:20 +0100

#1329761 — [PATCH 3.2 66/87] IB/mlx4: Initialize hop_limit when creating address handle

3.2.77-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Matan Barak <matanb@mellanox.com>

commit 4e4081673445485aa6bc90383bdb83e7a96cc48a upstream.

Hop limit value wasn't copied from attributes  when ah was created.
This may influence packets for unconnected services to get dropped in
routers when endpoints are not in the same subnet.

Fixes: fa417f7b520e ("IB/mlx4: Add support for IBoE")
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
 drivers/infiniband/hw/mlx4/ah.c | 1 +
 1 file changed, 1 insertion(+)

--- a/drivers/infiniband/hw/mlx4/ah.c
+++ b/drivers/infiniband/hw/mlx4/ah.c
@@ -112,6 +112,7 @@ static struct ib_ah *create_iboe_ah(stru
 	ah->av.eth.port_pd = cpu_to_be32(to_mpd(pd)->pdn | (ah_attr->port_num << 24));
 	ah->av.eth.gid_index = ah_attr->grh.sgid_index;
 	ah->av.eth.vlan = cpu_to_be16(vlan_tag);
+	ah->av.eth.hop_limit = ah_attr->grh.hop_limit;
 	if (ah_attr->static_rate) {
 		ah->av.eth.stat_rate = ah_attr->static_rate + MLX4_STAT_RATE_OFFSET;
 		while (ah->av.eth.stat_rate > IB_RATE_2_5_GBPS + MLX4_STAT_RATE_OFFSET &&

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