From 3b715eb73d13b194a8725507a299fecd6120f706 Mon Sep 17 00:00:00 2001 From: Vlad Buslov Date: Thu, 2 Sep 2021 11:12:16 +0300 Subject: [PATCH 16/22] net/mlx5: Bridge, extract VLAN pop code to dedicated functions Following patches in series need to pop VLAN when packet misses on egress. To reuse existing bridge VLAN pop handling code, extract it to dedicated helpers mlx5_esw_bridge_pkt_reformat_vlan_pop_supported() and mlx5_esw_bridge_pkt_reformat_vlan_pop_create(). Signed-off-by: Vlad Buslov Reviewed-by: Paul Blakey Signed-off-by: Saeed Mahameed --- .../ethernet/mellanox/mlx5/core/esw/bridge.c | 34 ++++++++++++------- 1 file changed, 22 insertions(+), 12 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c index 9d8e09a3b4eb..895bf3866ed3 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c @@ -86,6 +86,26 @@ mlx5_esw_bridge_fdb_del_notify(struct mlx5_esw_bridge_fdb_entry *entry) SWITCHDEV_FDB_DEL_TO_BRIDGE); } +static bool mlx5_esw_bridge_pkt_reformat_vlan_pop_supported(struct mlx5_eswitch *esw) +{ + return BIT(MLX5_CAP_ESW_FLOWTABLE_FDB(esw->dev, reformat_remove)) && + MLX5_CAP_GEN_2(esw->dev, max_reformat_remove_size) >= sizeof(struct vlan_hdr) && + MLX5_CAP_GEN_2(esw->dev, max_reformat_remove_offset) >= + offsetof(struct vlan_ethhdr, h_vlan_proto); +} + +static struct mlx5_pkt_reformat * +mlx5_esw_bridge_pkt_reformat_vlan_pop_create(struct mlx5_eswitch *esw) +{ + struct mlx5_pkt_reformat_params reformat_params = {}; + + reformat_params.type = MLX5_REFORMAT_TYPE_REMOVE_HDR; + reformat_params.param_0 = MLX5_REFORMAT_CONTEXT_ANCHOR_MAC_START; + reformat_params.param_1 = offsetof(struct vlan_ethhdr, h_vlan_proto); + reformat_params.size = sizeof(struct vlan_hdr); + return mlx5_packet_reformat_alloc(esw->dev, &reformat_params, MLX5_FLOW_NAMESPACE_FDB); +} + static struct mlx5_flow_table * mlx5_esw_bridge_table_create(int max_fte, u32 level, struct mlx5_eswitch *esw) { @@ -800,24 +820,14 @@ mlx5_esw_bridge_vlan_push_cleanup(struct mlx5_esw_bridge_vlan *vlan, struct mlx5 static int mlx5_esw_bridge_vlan_pop_create(struct mlx5_esw_bridge_vlan *vlan, struct mlx5_eswitch *esw) { - struct mlx5_pkt_reformat_params reformat_params = {}; struct mlx5_pkt_reformat *pkt_reformat; - if (!BIT(MLX5_CAP_ESW_FLOWTABLE_FDB(esw->dev, reformat_remove)) || - MLX5_CAP_GEN_2(esw->dev, max_reformat_remove_size) < sizeof(struct vlan_hdr) || - MLX5_CAP_GEN_2(esw->dev, max_reformat_remove_offset) < - offsetof(struct vlan_ethhdr, h_vlan_proto)) { + if (!mlx5_esw_bridge_pkt_reformat_vlan_pop_supported(esw)) { esw_warn(esw->dev, "Packet reformat REMOVE_HEADER is not supported\n"); return -EOPNOTSUPP; } - reformat_params.type = MLX5_REFORMAT_TYPE_REMOVE_HDR; - reformat_params.param_0 = MLX5_REFORMAT_CONTEXT_ANCHOR_MAC_START; - reformat_params.param_1 = offsetof(struct vlan_ethhdr, h_vlan_proto); - reformat_params.size = sizeof(struct vlan_hdr); - pkt_reformat = mlx5_packet_reformat_alloc(esw->dev, - &reformat_params, - MLX5_FLOW_NAMESPACE_FDB); + pkt_reformat = mlx5_esw_bridge_pkt_reformat_vlan_pop_create(esw); if (IS_ERR(pkt_reformat)) { esw_warn(esw->dev, "Failed to alloc packet reformat REMOVE_HEADER (err=%ld)\n", PTR_ERR(pkt_reformat)); -- 2.25.1