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authorMaor Gottlieb <maorg@mellanox.com>2016-11-10 11:30:53 +0200
committerDoug Ledford <dledford@redhat.com>2016-11-16 20:04:48 -0500
commitaf4295c117b82a521b05d0daf39ce879d26e6cb1 (patch)
tree59c697b716509c11ef6e111850516575e3ef8aa8 /drivers/infiniband/hw/mlx4/ah.c
parentIB/IPoIB: Remove can't use GFP_NOIO warning (diff)
downloadlinux-dev-af4295c117b82a521b05d0daf39ce879d26e6cb1.tar.xz
linux-dev-af4295c117b82a521b05d0daf39ce879d26e6cb1.zip
IB/mlx4: Set traffic class in AH
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>
Diffstat (limited to 'drivers/infiniband/hw/mlx4/ah.c')
-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 5fc623362731..6be7dc320ff7 100644
--- a/drivers/infiniband/hw/mlx4/ah.c
+++ b/drivers/infiniband/hw/mlx4/ah.c
@@ -111,7 +111,9 @@ 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.
*/
@@ -119,7 +121,7 @@ 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;
}