From b16eb3c81fe27978afdb2c111908d4d627a88d99 Mon Sep 17 00:00:00 2001 From: Ariel Levkovich Date: Sat, 9 Jan 2021 01:38:04 +0200 Subject: [PATCH] net/mlx5: Support internal port as decap route device When performing route device lookup for decap action, support the case of ovs internal port as the lookup result. In such case, an internal port struct is mapped and attached to the flow attributes so that the source port matching of the rule will match on the internal port's metadata value. Signed-off-by: Ariel Levkovich Reviewed-by: Vlad Buslov Reviewed-by: Roi Dayan Signed-off-by: Saeed Mahameed --- .../ethernet/mellanox/mlx5/core/en/tc_tun.c | 29 ++++++++++++------- .../net/ethernet/mellanox/mlx5/core/en_tc.c | 24 +++++++++++++-- 2 files changed, 40 insertions(+), 13 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c index c57180d030c7ea..a5e4509732257c 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c @@ -711,6 +711,7 @@ int mlx5e_tc_tun_route_lookup(struct mlx5e_priv *priv, struct mlx5_flow_attr *flow_attr) { struct mlx5_esw_flow_attr *esw_attr = flow_attr->esw_attr; + struct mlx5e_tc_int_port *int_port; TC_TUN_ROUTE_ATTR_INIT(attr); u16 vport_num; int err = 0; @@ -735,17 +736,25 @@ int mlx5e_tc_tun_route_lookup(struct mlx5e_priv *priv, if (err) return err; - if (attr.route_dev->netdev_ops != &mlx5e_netdev_ops || - !mlx5e_tc_is_vf_tunnel(attr.out_dev, attr.route_dev)) - goto out; - - err = mlx5e_tc_query_route_vport(attr.out_dev, attr.route_dev, &vport_num); - if (err) - goto out; + if (attr.route_dev->netdev_ops == &mlx5e_netdev_ops && + mlx5e_tc_is_vf_tunnel(attr.out_dev, attr.route_dev)) { + err = mlx5e_tc_query_route_vport(attr.out_dev, attr.route_dev, &vport_num); + if (err) + goto out; - esw_attr->rx_tun_attr->vni = MLX5_GET(fte_match_param, spec->match_value, - misc_parameters.vxlan_vni); - esw_attr->rx_tun_attr->decap_vport = vport_num; + esw_attr->rx_tun_attr->vni = MLX5_GET(fte_match_param, spec->match_value, + misc_parameters.vxlan_vni); + esw_attr->rx_tun_attr->decap_vport = vport_num; + } else if (netif_is_ovs_master(attr.route_dev)) { + int_port = mlx5e_tc_int_port_get(mlx5e_get_int_port_priv(priv), + attr.route_dev->ifindex, + MLX5E_TC_INT_PORT_INGRESS); + if (IS_ERR(int_port)) { + err = PTR_ERR(int_port); + goto out; + } + esw_attr->int_port = int_port; + } out: if (flow_attr->tun_ip_version == 4) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index e11a906d70c7d4..835caa1c7b7459 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -1401,6 +1401,9 @@ mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv, int err = 0; int out_index; + parse_attr = attr->parse_attr; + esw_attr = attr->esw_attr; + /* We check chain range only for tc flows. * For ft flows, we checked attr->chain was originally 0 and set it to * FDB_FT_CHAIN which is outside tc range. @@ -1426,6 +1429,24 @@ mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv, err = mlx5e_attach_decap_route(priv, flow); if (err) goto err_out; + + if (!attr->chain && esw_attr->int_port) { + /* If decap route device is internal port, change the + * source vport value in reg_c0 back to uplink just in + * case the rule performs goto chain > 0. If we have a miss + * on chain > 0 we want the metadata regs to hold the + * chain id so SW will resume handling of this packet + * from the proper chain. + */ + u32 metadata = mlx5_eswitch_get_vport_metadata_for_set(esw, + esw_attr->in_rep->vport); + + err = mlx5e_tc_match_to_reg_set(priv->mdev, &parse_attr->mod_hdr_acts, + MLX5_FLOW_NAMESPACE_FDB, VPORT_TO_REG, + metadata); + if (err) + return err; + } } if (flow_flag_test(flow, L3_TO_L2_DECAP)) { @@ -1434,9 +1455,6 @@ mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv, goto err_out; } - parse_attr = attr->parse_attr; - esw_attr = attr->esw_attr; - if (netif_is_ovs_master(parse_attr->filter_dev)) { struct mlx5e_tc_int_port *int_port;