From a56298693c73f43b0b603c702eeb66b4c80ba6fb Mon Sep 17 00:00:00 2001 From: Alaa Hleihel Date: Tue, 19 May 2020 07:49:02 -0400 Subject: [PATCH 240/312] [netdrv] net/mlx5: E-Switch, Introduce global tables Message-id: <20200519074934.6303-32-ahleihel@redhat.com> Patchwork-id: 310534 Patchwork-instance: patchwork O-Subject: [RHEL8.3 BZ 1663246 31/63] net/mlx5: E-Switch, Introduce global tables Bugzilla: 1790219 1663246 RH-Acked-by: Marcelo Leitner RH-Acked-by: Jarod Wilson RH-Acked-by: John Linville RH-Acked-by: Ivan Vecera RH-Acked-by: Tony Camuso RH-Acked-by: Kamal Heib Bugzilla: http://bugzilla.redhat.com/1663246 Bugzilla: http://bugzilla.redhat.com/1790219 Upstream: v5.7-rc1 commit d18296ffd9ccde82c82c220263fca2e76d5258be Author: Paul Blakey Date: Thu Mar 12 12:23:10 2020 +0200 net/mlx5: E-Switch, Introduce global tables Currently, flow tables are automatically connected according to their tuple. Introduce global tables which are flow tables that are detached from the eswitch chains processing, and will be connected by explicitly referencing them from multiple chains. Add this new table type, and allow connecting them by refenece. Signed-off-by: Paul Blakey Reviewed-by: Oz Shlomo Signed-off-by: David S. Miller Signed-off-by: Alaa Hleihel Signed-off-by: Frantisek Hrbata --- drivers/net/ethernet/mellanox/mlx5/core/eswitch.h | 2 ++ .../ethernet/mellanox/mlx5/core/eswitch_offloads.c | 18 +++++++++---- .../mellanox/mlx5/core/eswitch_offloads_chains.c | 30 ++++++++++++++++++++++ .../mellanox/mlx5/core/eswitch_offloads_chains.h | 6 +++++ 4 files changed, 51 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h index ccb4f0f566ea..e7de5e8e5605 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h @@ -462,6 +462,8 @@ struct mlx5_esw_flow_attr { u32 dest_chain; #ifndef __GENKSYMS__ u32 flags; + struct mlx5_flow_table *fdb; + struct mlx5_flow_table *dest_ft; #endif struct mlx5e_tc_flow_parse_attr *parse_attr; }; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c index da5730c8c3fb..e8d9a0bd943a 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c @@ -324,7 +324,12 @@ mlx5_eswitch_add_offloaded_rule(struct mlx5_eswitch *esw, if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) { struct mlx5_flow_table *ft; - if (attr->flags & MLX5_ESW_ATTR_FLAG_SLOW_PATH) { + if (attr->dest_ft) { + flow_act.flags |= FLOW_ACT_IGNORE_FLOW_LEVEL; + dest[i].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; + dest[i].ft = attr->dest_ft; + i++; + } else if (attr->flags & MLX5_ESW_ATTR_FLAG_SLOW_PATH) { flow_act.flags |= FLOW_ACT_IGNORE_FLOW_LEVEL; dest[i].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; dest[i].ft = mlx5_esw_chains_get_tc_end_ft(esw); @@ -378,8 +383,11 @@ mlx5_eswitch_add_offloaded_rule(struct mlx5_eswitch *esw, if (split) { fdb = esw_vport_tbl_get(esw, attr); } else { - fdb = mlx5_esw_chains_get_table(esw, attr->chain, attr->prio, - 0); + if (attr->chain || attr->prio) + fdb = mlx5_esw_chains_get_table(esw, attr->chain, + attr->prio, 0); + else + fdb = attr->fdb; mlx5_eswitch_set_rule_source_port(esw, spec, attr); } if (IS_ERR(fdb)) { @@ -402,7 +410,7 @@ mlx5_eswitch_add_offloaded_rule(struct mlx5_eswitch *esw, err_add_rule: if (split) esw_vport_tbl_put(esw, attr); - else + else if (attr->chain || attr->prio) mlx5_esw_chains_put_table(esw, attr->chain, attr->prio, 0); err_esw_get: if (!(attr->flags & MLX5_ESW_ATTR_FLAG_SLOW_PATH) && attr->dest_chain) @@ -499,7 +507,7 @@ __mlx5_eswitch_del_rule(struct mlx5_eswitch *esw, } else { if (split) esw_vport_tbl_put(esw, attr); - else + else if (attr->chain || attr->prio) mlx5_esw_chains_put_table(esw, attr->chain, attr->prio, 0); if (attr->dest_chain) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_chains.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_chains.c index 12ca184cd795..6f62a326071a 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_chains.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_chains.c @@ -719,6 +719,36 @@ mlx5_esw_chains_get_tc_end_ft(struct mlx5_eswitch *esw) return tc_end_fdb(esw); } +struct mlx5_flow_table * +mlx5_esw_chains_create_global_table(struct mlx5_eswitch *esw) +{ + int chain, prio, level, err; + + if (!fdb_ignore_flow_level_supported(esw)) { + err = -EOPNOTSUPP; + + esw_warn(esw->dev, + "Couldn't create global flow table, ignore_flow_level not supported."); + goto err_ignore; + } + + chain = mlx5_esw_chains_get_chain_range(esw), + prio = mlx5_esw_chains_get_prio_range(esw); + level = mlx5_esw_chains_get_level_range(esw); + + return mlx5_esw_chains_create_fdb_table(esw, chain, prio, level); + +err_ignore: + return ERR_PTR(err); +} + +void +mlx5_esw_chains_destroy_global_table(struct mlx5_eswitch *esw, + struct mlx5_flow_table *ft) +{ + mlx5_esw_chains_destroy_fdb_table(esw, ft); +} + static int mlx5_esw_chains_init(struct mlx5_eswitch *esw) { diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_chains.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_chains.h index e806d8de868e..c7bc609acb91 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_chains.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_chains.h @@ -25,6 +25,12 @@ mlx5_esw_chains_put_table(struct mlx5_eswitch *esw, u32 chain, u32 prio, struct mlx5_flow_table * mlx5_esw_chains_get_tc_end_ft(struct mlx5_eswitch *esw); +struct mlx5_flow_table * +mlx5_esw_chains_create_global_table(struct mlx5_eswitch *esw); +void +mlx5_esw_chains_destroy_global_table(struct mlx5_eswitch *esw, + struct mlx5_flow_table *ft); + int mlx5_esw_chains_create(struct mlx5_eswitch *esw); void mlx5_esw_chains_destroy(struct mlx5_eswitch *esw); -- 2.13.6