net/mlx5: DR, Create multi-destination table for SW-steering use

Currently SW steering doesn't have the means to access HW iterators to
support multi-destination (FTEs) flow table entries.

In order to support multi-destination FTEs for port-mirroring, SW
steering will create a dedicated multi-destination FW managed flow table
and FTEs via direct FW commands that we introduced in the previous patch.

Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_fw.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_fw.c
index 9d2180cb095ff69c3d52e5cd1b6b6bf4aaf7f8bd..1fbcd012bb855eb0aca04de14a25a24e633f441b 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_fw.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_fw.c
@@ -97,3 +97,70 @@ void mlx5dr_fw_destroy_recalc_cs_ft(struct mlx5dr_domain *dmn,
 
        kfree(recalc_cs_ft);
 }
+
+int mlx5dr_fw_create_md_tbl(struct mlx5dr_domain *dmn,
+                           struct mlx5dr_cmd_flow_destination_hw_info *dest,
+                           int num_dest,
+                           bool reformat_req,
+                           u32 *tbl_id,
+                           u32 *group_id)
+{
+       struct mlx5dr_cmd_create_flow_table_attr ft_attr = {};
+       struct mlx5dr_cmd_fte_info fte_info = {};
+       u32 val[MLX5_ST_SZ_DW_MATCH_PARAM] = {};
+       struct mlx5dr_cmd_ft_info ft_info = {};
+       int ret;
+
+       ft_attr.table_type = MLX5_FLOW_TABLE_TYPE_FDB;
+       ft_attr.level = dmn->info.caps.max_ft_level - 2;
+       ft_attr.reformat_en = reformat_req;
+       ft_attr.decap_en = reformat_req;
+
+       ret = mlx5dr_cmd_create_flow_table(dmn->mdev, &ft_attr, NULL, tbl_id);
+       if (ret) {
+               mlx5dr_err(dmn, "Failed creating multi dest FW flow table %d\n", ret);
+               return ret;
+       }
+
+       ret = mlx5dr_cmd_create_empty_flow_group(dmn->mdev,
+                                                MLX5_FLOW_TABLE_TYPE_FDB,
+                                                *tbl_id, group_id);
+       if (ret) {
+               mlx5dr_err(dmn, "Failed creating multi dest FW flow group %d\n", ret);
+               goto free_flow_table;
+       }
+
+       ft_info.id = *tbl_id;
+       ft_info.type = FS_FT_FDB;
+       fte_info.action.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
+       fte_info.dests_size = num_dest;
+       fte_info.val = val;
+       fte_info.dest_arr = dest;
+
+       ret = mlx5dr_cmd_set_fte(dmn->mdev, 0, 0, &ft_info, *group_id, &fte_info);
+       if (ret) {
+               mlx5dr_err(dmn, "Failed setting fte into table %d\n", ret);
+               goto free_flow_group;
+       }
+
+       return 0;
+
+free_flow_group:
+       mlx5dr_cmd_destroy_flow_group(dmn->mdev, MLX5_FLOW_TABLE_TYPE_FDB,
+                                     *tbl_id, *group_id);
+free_flow_table:
+       mlx5dr_cmd_destroy_flow_table(dmn->mdev, *tbl_id,
+                                     MLX5_FLOW_TABLE_TYPE_FDB);
+       return ret;
+}
+
+void mlx5dr_fw_destroy_md_tbl(struct mlx5dr_domain *dmn,
+                             u32 tbl_id, u32 group_id)
+{
+       mlx5dr_cmd_del_flow_table_entry(dmn->mdev, FS_FT_FDB, tbl_id);
+       mlx5dr_cmd_destroy_flow_group(dmn->mdev,
+                                     MLX5_FLOW_TABLE_TYPE_FDB,
+                                     tbl_id, group_id);
+       mlx5dr_cmd_destroy_flow_table(dmn->mdev, tbl_id,
+                                     MLX5_FLOW_TABLE_TYPE_FDB);
+}

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_types.h b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_types.h
index 09ac9aadad1a3eff0e60df6f900725eea8c2f4ef..c37226a143111ca1de05cdaddcc3b7116010aaa5 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_types.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_types.h
@@ -1108,4 +1108,12 @@ void mlx5dr_fw_destroy_recalc_cs_ft(struct mlx5dr_domain *dmn,
 int mlx5dr_domain_cache_get_recalc_cs_ft_addr(struct mlx5dr_domain *dmn,
                                              u32 vport_num,
                                              u64 *rx_icm_addr);
+int mlx5dr_fw_create_md_tbl(struct mlx5dr_domain *dmn,
+                           struct mlx5dr_cmd_flow_destination_hw_info *dest,
+                           int num_dest,
+                           bool reformat_req,
+                           u32 *tbl_id,
+                           u32 *group_id);
+void mlx5dr_fw_destroy_md_tbl(struct mlx5dr_domain *dmn, u32 tbl_id,
+                             u32 group_id);
 #endif  /* _DR_TYPES_H_ */