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authorMaor Gottlieb <maorg@mellanox.com>2016-11-10 09:30:53 (GMT)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-01-26 07:24:35 (GMT)
commit970f6806c2b17054ab47cfa0751d8e4150a92c1f (patch)
tree343a8d507a4a439052d15ba6848c4f76f7b1e721
parent0d64860aa6389e4cd23da3ef1eb648fbeded1060 (diff)
downloadlinux-970f6806c2b17054ab47cfa0751d8e4150a92c1f.tar.xz
IB/mlx4: Set traffic class in AH
commit af4295c117b82a521b05d0daf39ce879d26e6cb1 upstream. Set traffic class within sl_tclass_flowlabel when create iboe AH. Without this the TOS value will be empty when running VLAN tagged traffic, because the TOS value is taken from the traffic class in the address handle attributes. Fixes: 9106c4106974 ('IB/mlx4: Fix SL to 802.1Q priority-bits mapping for IBoE') Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Daniel Jurgens <danielj@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/infiniband/hw/mlx4/ah.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/mlx4/ah.c b/drivers/infiniband/hw/mlx4/ah.c
index b9bf075..8dfc76f 100644
--- a/drivers/infiniband/hw/mlx4/ah.c
+++ b/drivers/infiniband/hw/mlx4/ah.c
@@ -114,7 +114,9 @@ static struct ib_ah *create_iboe_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr
!(1 << ah->av.eth.stat_rate & dev->caps.stat_rate_support))
--ah->av.eth.stat_rate;
}
-
+ ah->av.eth.sl_tclass_flowlabel |=
+ cpu_to_be32((ah_attr->grh.traffic_class << 20) |
+ ah_attr->grh.flow_label);
/*
* HW requires multicast LID so we just choose one.
*/
@@ -122,7 +124,7 @@ static struct ib_ah *create_iboe_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr
ah->av.ib.dlid = cpu_to_be16(0xc000);
memcpy(ah->av.eth.dgid, ah_attr->grh.dgid.raw, 16);
- ah->av.eth.sl_tclass_flowlabel = cpu_to_be32(ah_attr->sl << 29);
+ ah->av.eth.sl_tclass_flowlabel |= cpu_to_be32(ah_attr->sl << 29);
return &ah->ibah;
}