diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c | 147 |
1 files changed, 138 insertions, 9 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c index 788bb83b18e5..81c2cbf0c308 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c @@ -838,6 +838,54 @@ out: return err; } +struct mlx5_flow_handle * +esw_add_restore_rule(struct mlx5_eswitch *esw, u32 tag) +{ + struct mlx5_flow_act flow_act = { .flags = FLOW_ACT_NO_APPEND, }; + struct mlx5_flow_table *ft = esw->offloads.ft_offloads_restore; + struct mlx5_flow_context *flow_context; + struct mlx5_flow_handle *flow_rule; + struct mlx5_flow_destination dest; + struct mlx5_flow_spec *spec; + void *misc; + + spec = kzalloc(sizeof(*spec), GFP_KERNEL); + if (!spec) + return ERR_PTR(-ENOMEM); + + misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, + misc_parameters_2); + MLX5_SET(fte_match_set_misc2, misc, metadata_reg_c_0, + ESW_CHAIN_TAG_METADATA_MASK); + misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, + misc_parameters_2); + MLX5_SET(fte_match_set_misc2, misc, metadata_reg_c_0, tag); + spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS_2; + flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; + + flow_context = &spec->flow_context; + flow_context->flags |= FLOW_CONTEXT_HAS_TAG; + flow_context->flow_tag = tag; + dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; + dest.ft = esw->offloads.ft_offloads; + + flow_rule = mlx5_add_flow_rules(ft, spec, &flow_act, &dest, 1); + kfree(spec); + + if (IS_ERR(flow_rule)) + esw_warn(esw->dev, + "Failed to create restore rule for tag: %d, err(%d)\n", + tag, (int)PTR_ERR(flow_rule)); + + return flow_rule; +} + +u32 +esw_get_max_restore_tag(struct mlx5_eswitch *esw) +{ + return ESW_CHAIN_TAG_METADATA_MASK; +} + #define MAX_PF_SQ 256 #define MAX_SQ_NVPORTS 32 @@ -1060,6 +1108,7 @@ static int esw_create_offloads_table(struct mlx5_eswitch *esw, int nvports) } ft_attr.max_fte = nvports + MLX5_ESW_MISS_FLOWS; + ft_attr.prio = 1; ft_offloads = mlx5_create_flow_table(ns, &ft_attr); if (IS_ERR(ft_offloads)) { @@ -1164,6 +1213,81 @@ out: return flow_rule; } +static void esw_destroy_restore_table(struct mlx5_eswitch *esw) +{ + struct mlx5_esw_offload *offloads = &esw->offloads; + + mlx5_destroy_flow_group(offloads->restore_group); + mlx5_destroy_flow_table(offloads->ft_offloads_restore); +} + +static int esw_create_restore_table(struct mlx5_eswitch *esw) +{ + int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); + struct mlx5_flow_table_attr ft_attr = {}; + struct mlx5_core_dev *dev = esw->dev; + struct mlx5_flow_namespace *ns; + void *match_criteria, *misc; + struct mlx5_flow_table *ft; + struct mlx5_flow_group *g; + u32 *flow_group_in; + int err = 0; + + ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_OFFLOADS); + if (!ns) { + esw_warn(esw->dev, "Failed to get offloads flow namespace\n"); + return -EOPNOTSUPP; + } + + flow_group_in = kvzalloc(inlen, GFP_KERNEL); + if (!flow_group_in) { + err = -ENOMEM; + goto out_free; + } + + ft_attr.max_fte = 1 << ESW_CHAIN_TAG_METADATA_BITS; + ft = mlx5_create_flow_table(ns, &ft_attr); + if (IS_ERR(ft)) { + err = PTR_ERR(ft); + esw_warn(esw->dev, "Failed to create restore table, err %d\n", + err); + goto out_free; + } + + memset(flow_group_in, 0, inlen); + match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in, + match_criteria); + misc = MLX5_ADDR_OF(fte_match_param, match_criteria, + misc_parameters_2); + + MLX5_SET(fte_match_set_misc2, misc, metadata_reg_c_0, + ESW_CHAIN_TAG_METADATA_MASK); + MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 0); + MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, + ft_attr.max_fte - 1); + MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable, + MLX5_MATCH_MISC_PARAMETERS_2); + g = mlx5_create_flow_group(ft, flow_group_in); + if (IS_ERR(g)) { + err = PTR_ERR(g); + esw_warn(dev, "Failed to create restore flow group, err: %d\n", + err); + goto err_group; + } + + esw->offloads.ft_offloads_restore = ft; + esw->offloads.restore_group = g; + + return 0; + +err_group: + mlx5_destroy_flow_table(ft); +out_free: + kvfree(flow_group_in); + + return err; +} + static int esw_offloads_start(struct mlx5_eswitch *esw, struct netlink_ext_ack *extack) { @@ -1923,13 +2047,17 @@ static int esw_offloads_steering_init(struct mlx5_eswitch *esw) if (err) return err; - err = esw_create_offloads_fdb_tables(esw, total_vports); + err = esw_create_offloads_table(esw, total_vports); if (err) - goto create_fdb_err; + goto create_offloads_err; - err = esw_create_offloads_table(esw, total_vports); + err = esw_create_restore_table(esw); if (err) - goto create_ft_err; + goto create_restore_err; + + err = esw_create_offloads_fdb_tables(esw, total_vports); + if (err) + goto create_fdb_err; err = esw_create_vport_rx_group(esw, total_vports); if (err) @@ -1938,12 +2066,12 @@ static int esw_offloads_steering_init(struct mlx5_eswitch *esw) return 0; create_fg_err: - esw_destroy_offloads_table(esw); - -create_ft_err: esw_destroy_offloads_fdb_tables(esw); - create_fdb_err: + esw_destroy_restore_table(esw); +create_restore_err: + esw_destroy_offloads_table(esw); +create_offloads_err: esw_destroy_uplink_offloads_acl_tables(esw); return err; @@ -1952,8 +2080,9 @@ create_fdb_err: static void esw_offloads_steering_cleanup(struct mlx5_eswitch *esw) { esw_destroy_vport_rx_group(esw); - esw_destroy_offloads_table(esw); esw_destroy_offloads_fdb_tables(esw); + esw_destroy_restore_table(esw); + esw_destroy_offloads_table(esw); esw_destroy_uplink_offloads_acl_tables(esw); } |