@@ -189,6 +189,9 @@ struct mlx5_eswitch_fdb {
};
struct mlx5_esw_offload {
+ struct mlx5_flow_table *ft_offloads_restore;
+ struct mlx5_flow_group *restore_group;
+
struct mlx5_flow_table *ft_offloads;
struct mlx5_flow_group *vport_rx_group;
struct mlx5_eswitch_rep *vport_reps;
@@ -623,6 +626,12 @@ struct mlx5_vport *__must_check
esw_vport_destroy_offloads_acl_tables(struct mlx5_eswitch *esw,
struct mlx5_vport *vport);
+struct mlx5_flow_handle *
+esw_add_restore_rule(struct mlx5_eswitch *esw, u32 tag);
+
+u32
+esw_get_max_restore_tag(struct mlx5_eswitch *esw);
+
#else /* CONFIG_MLX5_ESWITCH */
/* eswitch API stubs */
static inline int mlx5_eswitch_init(struct mlx5_core_dev *dev) { return 0; }
@@ -638,6 +647,12 @@ static inline const u32 *mlx5_esw_query_functions(struct mlx5_core_dev *dev)
static inline void mlx5_eswitch_update_num_of_vfs(struct mlx5_eswitch *esw, const int num_vfs) {}
+static struct mlx5_flow_handle *
+esw_add_restore_rule(struct mlx5_eswitch *esw, u32 tag)
+{
+ return ERR_PTR(-EOPNOTSUPP);
+}
+
#endif /* CONFIG_MLX5_ESWITCH */
#endif /* __MLX5_ESWITCH_H__ */
@@ -62,6 +62,7 @@
#define SOURCE_PORT_METADATA_BITS (VHCA_ID_BITS + VPORT_BITS)
#define SOURCE_PORT_METADATA_OFFSET (32 - SOURCE_PORT_METADATA_BITS)
#define CHAIN_TAG_METADATA_BITS (32 - SOURCE_PORT_METADATA_BITS)
+#define CHAIN_TAG_METADATA_MASK GENMASK(CHAIN_TAG_METADATA_BITS - 1, 0)
static struct mlx5_eswitch_rep *mlx5_eswitch_get_rep(struct mlx5_eswitch *esw,
u16 vport_num)
@@ -851,6 +852,49 @@ static int esw_add_fdb_miss_rule(struct mlx5_eswitch *esw)
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_spec s, *spec = &s;
+ struct mlx5_flow_handle *flow_rule;
+ struct mlx5_flow_destination dest;
+ void *misc;
+
+ memset(spec, 0, sizeof(*spec));
+ misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
+ misc_parameters_2);
+ MLX5_SET(fte_match_set_misc2, misc, metadata_reg_c_0,
+ 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);
+
+ 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 CHAIN_TAG_METADATA_MASK;
+}
+
#define MAX_PF_SQ 256
#define MAX_SQ_NVPORTS 32
@@ -1073,6 +1117,7 @@ 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)) {
@@ -1177,6 +1222,81 @@ struct mlx5_flow_handle *
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 << 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,
+ 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)
{
@@ -1934,13 +2054,17 @@ 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)
@@ -1949,12 +2073,12 @@ 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;
@@ -1963,8 +2087,9 @@ static int esw_offloads_steering_init(struct mlx5_eswitch *esw)
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);
}
@@ -111,8 +111,8 @@
#define ANCHOR_MIN_LEVEL (BY_PASS_MIN_LEVEL + 1)
#define OFFLOADS_MAX_FT 1
-#define OFFLOADS_NUM_PRIOS 1
-#define OFFLOADS_MIN_LEVEL (ANCHOR_MIN_LEVEL + 1)
+#define OFFLOADS_NUM_PRIOS 2
+#define OFFLOADS_MIN_LEVEL (ANCHOR_MIN_LEVEL + OFFLOADS_NUM_PRIOS)
#define LAG_PRIO_NUM_LEVELS 1
#define LAG_NUM_PRIOS 1