net/mlx5: E-switch, Create a second level FDB flow table

[sfrench/cifs-2.6.git] / drivers / net / ethernet / mellanox / mlx5 / core / eswitch_offloads.c

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index b9ea464bcfa9afbbcf8f2d8aa4080cdab43ab619..8ea11f24380ce07ff177171ce1ba21bcb0481a4f 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -119,7 +119,7 @@ mlx5_eswitch_add_offloaded_rule(struct mlx5_eswitch *esw,
        if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_ENCAP)
                flow_act.encap_id = attr->encap_id;
 
-       rule = mlx5_add_flow_rules((struct mlx5_flow_table *)esw->fdb_table.fdb,
+       rule = mlx5_add_flow_rules((struct mlx5_flow_table *)esw->fdb_table.offloads.fast_fdb,
                                   spec, &flow_act, dest, i);
        if (IS_ERR(rule))
                goto err_add_rule;
@@ -363,7 +363,7 @@ mlx5_eswitch_add_send_to_vport_rule(struct mlx5_eswitch *esw, int vport, u32 sqn
        dest.vport.num = vport;
        flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
 
-       flow_rule = mlx5_add_flow_rules(esw->fdb_table.offloads.fdb, spec,
+       flow_rule = mlx5_add_flow_rules(esw->fdb_table.offloads.slow_fdb, spec,
                                        &flow_act, &dest, 1);
        if (IS_ERR(flow_rule))
                esw_warn(esw->dev, "FDB: Failed to add send to vport rule err %ld\n", PTR_ERR(flow_rule));
@@ -407,7 +407,7 @@ static int esw_add_fdb_miss_rule(struct mlx5_eswitch *esw)
        dest.vport.num = 0;
        flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
 
-       flow_rule = mlx5_add_flow_rules(esw->fdb_table.offloads.fdb, spec,
+       flow_rule = mlx5_add_flow_rules(esw->fdb_table.offloads.slow_fdb, spec,
                                        &flow_act, &dest, 1);
        if (IS_ERR(flow_rule)) {
                err = PTR_ERR(flow_rule);
@@ -422,7 +422,7 @@ static int esw_add_fdb_miss_rule(struct mlx5_eswitch *esw)
        dmac_v = MLX5_ADDR_OF(fte_match_param, headers_v,
                              outer_headers.dmac_47_16);
        dmac_v[0] = 0x01;
-       flow_rule = mlx5_add_flow_rules(esw->fdb_table.offloads.fdb, spec,
+       flow_rule = mlx5_add_flow_rules(esw->fdb_table.offloads.slow_fdb, spec,
                                        &flow_act, &dest, 1);
        if (IS_ERR(flow_rule)) {
                err = PTR_ERR(flow_rule);
@@ -454,7 +454,7 @@ static int esw_create_offloads_fast_fdb_table(struct mlx5_eswitch *esw)
        if (!root_ns) {
                esw_warn(dev, "Failed to get FDB flow namespace\n");
                err = -EOPNOTSUPP;
-               goto out;
+               goto out_namespace;
        }
 
        esw_debug(dev, "Create offloads FDB table, min (max esw size(2^%d), max counters(%d)*groups(%d))\n",
@@ -464,6 +464,9 @@ static int esw_create_offloads_fast_fdb_table(struct mlx5_eswitch *esw)
        esw_size = min_t(int, max_flow_counter * ESW_OFFLOADS_NUM_GROUPS,
                         1 << MLX5_CAP_ESW_FLOWTABLE_FDB(dev, log_max_ft_size));
 
+       if (mlx5_esw_has_fwd_fdb(dev))
+               esw_size >>= 1;
+
        if (esw->offloads.encap != DEVLINK_ESWITCH_ENCAP_MODE_NONE)
                flags |= MLX5_FLOW_TABLE_TUNNEL_EN;
 
@@ -474,17 +477,37 @@ static int esw_create_offloads_fast_fdb_table(struct mlx5_eswitch *esw)
        if (IS_ERR(fdb)) {
                err = PTR_ERR(fdb);
                esw_warn(dev, "Failed to create Fast path FDB Table err %d\n", err);
-               goto out;
+               goto out_namespace;
        }
-       esw->fdb_table.fdb = fdb;
+       esw->fdb_table.offloads.fast_fdb = fdb;
+
+       if (!mlx5_esw_has_fwd_fdb(dev))
+               goto out_namespace;
+
+       fdb = mlx5_create_auto_grouped_flow_table(root_ns, FDB_FAST_PATH,
+                                                 esw_size,
+                                                 ESW_OFFLOADS_NUM_GROUPS, 1,
+                                                 flags);
+       if (IS_ERR(fdb)) {
+               err = PTR_ERR(fdb);
+               esw_warn(dev, "Failed to create fwd table err %d\n", err);
+               goto out_ft;
+       }
+       esw->fdb_table.offloads.fwd_fdb = fdb;
 
-out:
+       return err;
+
+out_ft:
+       mlx5_destroy_flow_table(esw->fdb_table.offloads.fast_fdb);
+out_namespace:
        return err;
 }
 
 static void esw_destroy_offloads_fast_fdb_table(struct mlx5_eswitch *esw)
 {
-       mlx5_destroy_flow_table(esw->fdb_table.fdb);
+       if (mlx5_esw_has_fwd_fdb(esw->dev))
+               mlx5_destroy_flow_table(esw->fdb_table.offloads.fwd_fdb);
+       mlx5_destroy_flow_table(esw->fdb_table.offloads.fast_fdb);
 }
 
 #define MAX_PF_SQ 256
@@ -530,7 +553,7 @@ static int esw_create_offloads_fdb_tables(struct mlx5_eswitch *esw, int nvports)
                esw_warn(dev, "Failed to create slow path FDB Table err %d\n", err);
                goto slow_fdb_err;
        }
-       esw->fdb_table.offloads.fdb = fdb;
+       esw->fdb_table.offloads.slow_fdb = fdb;
 
        /* create send-to-vport group */
        memset(flow_group_in, 0, inlen);
@@ -586,9 +609,9 @@ miss_rule_err:
 miss_err:
        mlx5_destroy_flow_group(esw->fdb_table.offloads.send_to_vport_grp);
 send_vport_err:
-       mlx5_destroy_flow_table(esw->fdb_table.offloads.fdb);
+       mlx5_destroy_flow_table(esw->fdb_table.offloads.slow_fdb);
 slow_fdb_err:
-       mlx5_destroy_flow_table(esw->fdb_table.fdb);
+       esw_destroy_offloads_fast_fdb_table(esw);
 fast_fdb_err:
 ns_err:
        kvfree(flow_group_in);
@@ -597,7 +620,7 @@ ns_err:
 
 static void esw_destroy_offloads_fdb_tables(struct mlx5_eswitch *esw)
 {
-       if (!esw->fdb_table.fdb)
+       if (!esw->fdb_table.offloads.fast_fdb)
                return;
 
        esw_debug(esw->dev, "Destroy offloads FDB Tables\n");
@@ -606,7 +629,7 @@ static void esw_destroy_offloads_fdb_tables(struct mlx5_eswitch *esw)
        mlx5_destroy_flow_group(esw->fdb_table.offloads.send_to_vport_grp);
        mlx5_destroy_flow_group(esw->fdb_table.offloads.miss_grp);
 
-       mlx5_destroy_flow_table(esw->fdb_table.offloads.fdb);
+       mlx5_destroy_flow_table(esw->fdb_table.offloads.slow_fdb);
        esw_destroy_offloads_fast_fdb_table(esw);
 }