From: Maor Gottlieb <[email protected]> When attaching multicast for RoCE v2, we need to be able to steer packets to the QPs. Hence, we add support for IPV4 over IB steering.
Signed-off-by: Maor Gottlieb <[email protected]> --- drivers/net/ethernet/mellanox/mlx4/mcg.c | 14 ++++++++++++-- include/linux/mlx4/device.h | 6 ++++++ 2 files changed, 18 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/mcg.c b/drivers/net/ethernet/mellanox/mlx4/mcg.c index 1d4e2e0..834e60e 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mcg.c +++ b/drivers/net/ethernet/mellanox/mlx4/mcg.c @@ -858,7 +858,9 @@ static int parse_trans_rule(struct mlx4_dev *dev, struct mlx4_spec_list *spec, break; case MLX4_NET_TRANS_RULE_ID_IB: - rule_hw->ib.l3_qpn = spec->ib.l3_qpn; + rule_hw->ib.l3_qpn = spec->ib.l3_qpn | + (spec->ib.roce_type == MLX4_FLOW_SPEC_IB_ROCE_TYPE_IPV4 ? + (__force __be32)0x80 : (__force __be32)0); rule_hw->ib.qpn_mask = spec->ib.qpn_msk; memcpy(&rule_hw->ib.dst_gid, &spec->ib.dst_gid, 16); memcpy(&rule_hw->ib.dst_gid_msk, &spec->ib.dst_gid_msk, 16); @@ -1384,10 +1386,18 @@ int mlx4_trans_to_dmfs_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, memcpy(spec.eth.dst_mac_msk, &mac_mask, ETH_ALEN); break; + case MLX4_PROT_IB_IPV4: + spec.id = MLX4_NET_TRANS_RULE_ID_IB; + memcpy(spec.ib.dst_gid + 12, gid + 12, 4); + memset(spec.ib.dst_gid_msk + 12, 0xff, 4); + spec.ib.roce_type = MLX4_FLOW_SPEC_IB_ROCE_TYPE_IPV4; + break; + case MLX4_PROT_IB_IPV6: spec.id = MLX4_NET_TRANS_RULE_ID_IB; memcpy(spec.ib.dst_gid, gid, 16); - memset(&spec.ib.dst_gid_msk, 0xff, 16); + memset(spec.ib.dst_gid_msk, 0xff, 16); + spec.ib.roce_type = MLX4_FLOW_SPEC_IB_ROCE_TYPE_IPV6; break; default: return -EINVAL; diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h index 0d873f1ae..cdc75b2 100644 --- a/include/linux/mlx4/device.h +++ b/include/linux/mlx4/device.h @@ -391,6 +391,11 @@ enum mlx4_protocol { MLX4_PROT_FCOE }; +enum mlx4_flow_roce_type { + MLX4_FLOW_SPEC_IB_ROCE_TYPE_IPV6 = 0, + MLX4_FLOW_SPEC_IB_ROCE_TYPE_IPV4 +}; + enum { MLX4_MTT_FLAG_PRESENT = 1 }; @@ -1197,6 +1202,7 @@ struct mlx4_spec_ipv4 { struct mlx4_spec_ib { __be32 l3_qpn; __be32 qpn_msk; + enum mlx4_flow_roce_type roce_type; u8 dst_gid[16]; u8 dst_gid_msk[16]; }; -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
