diff options
| author | Achiad Shochat <achiad@mellanox.com> | 2015-12-23 18:47:24 +0200 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2015-12-23 12:07:37 -0500 |
| commit | 2811ba51b04958cd001b6409c9f70e8563376346 (patch) | |
| tree | f77b4c1b4543929fb1c0520993863295fc103413 /drivers/infiniband/hw/mlx5/ah.c | |
| parent | 3cca26069a4b7f6d8fd3dc0ed707e795c22712e2 (diff) | |
| download | lwn-2811ba51b04958cd001b6409c9f70e8563376346.tar.gz lwn-2811ba51b04958cd001b6409c9f70e8563376346.zip | |
IB/mlx5: Add RoCE fields to Address Vector
Set the address handle and QP address path fields according to the
link layer type (IB/Eth).
Signed-off-by: Achiad Shochat <achiad@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx5/ah.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/ah.c | 32 |
1 files changed, 26 insertions, 6 deletions
diff --git a/drivers/infiniband/hw/mlx5/ah.c b/drivers/infiniband/hw/mlx5/ah.c index 66080580e24d..745efa4cfc71 100644 --- a/drivers/infiniband/hw/mlx5/ah.c +++ b/drivers/infiniband/hw/mlx5/ah.c @@ -32,8 +32,10 @@ #include "mlx5_ib.h" -struct ib_ah *create_ib_ah(struct ib_ah_attr *ah_attr, - struct mlx5_ib_ah *ah) +static struct ib_ah *create_ib_ah(struct mlx5_ib_dev *dev, + struct mlx5_ib_ah *ah, + struct ib_ah_attr *ah_attr, + enum rdma_link_layer ll) { if (ah_attr->ah_flags & IB_AH_GRH) { memcpy(ah->av.rgid, &ah_attr->grh.dgid, 16); @@ -44,9 +46,20 @@ struct ib_ah *create_ib_ah(struct ib_ah_attr *ah_attr, ah->av.tclass = ah_attr->grh.traffic_class; } - ah->av.rlid = cpu_to_be16(ah_attr->dlid); - ah->av.fl_mlid = ah_attr->src_path_bits & 0x7f; - ah->av.stat_rate_sl = (ah_attr->static_rate << 4) | (ah_attr->sl & 0xf); + ah->av.stat_rate_sl = (ah_attr->static_rate << 4); + + if (ll == IB_LINK_LAYER_ETHERNET) { + memcpy(ah->av.rmac, ah_attr->dmac, sizeof(ah_attr->dmac)); + ah->av.udp_sport = + mlx5_get_roce_udp_sport(dev, + ah_attr->port_num, + ah_attr->grh.sgid_index); + ah->av.stat_rate_sl |= (ah_attr->sl & 0x7) << 1; + } else { + ah->av.rlid = cpu_to_be16(ah_attr->dlid); + ah->av.fl_mlid = ah_attr->src_path_bits & 0x7f; + ah->av.stat_rate_sl |= (ah_attr->sl & 0xf); + } return &ah->ibah; } @@ -54,12 +67,19 @@ struct ib_ah *create_ib_ah(struct ib_ah_attr *ah_attr, struct ib_ah *mlx5_ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr) { struct mlx5_ib_ah *ah; + struct mlx5_ib_dev *dev = to_mdev(pd->device); + enum rdma_link_layer ll; + + ll = pd->device->get_link_layer(pd->device, ah_attr->port_num); + + if (ll == IB_LINK_LAYER_ETHERNET && !(ah_attr->ah_flags & IB_AH_GRH)) + return ERR_PTR(-EINVAL); ah = kzalloc(sizeof(*ah), GFP_ATOMIC); if (!ah) return ERR_PTR(-ENOMEM); - return create_ib_ah(ah_attr, ah); /* never fails */ + return create_ib_ah(dev, ah, ah_attr, ll); /* never fails */ } int mlx5_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr) |