From: Roi Dayan <roid@nvidia.com>
Date: Tue, 16 Nov 2021 13:17:56 +0200
Subject: net/mlx5e: Add redirect ingress to tc action infra
Patch-mainline: v5.17-rc1
Git-commit: 922d69ed9666226e62824df118fb9fbd31739683
References: jsc#PED-1549
Add parsing support by implementing struct mlx5e_tc_act
for this action.
Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Oz Shlomo <ozsh@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/mellanox/mlx5/core/Makefile | 3
drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/act.c | 2
drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/act.h | 1
drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/redirect_ingress.c | 79 ++++++++++
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 49 ------
5 files changed, 83 insertions(+), 51 deletions(-)
create mode 100644 drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/redirect_ingress.c
--- a/drivers/net/ethernet/mellanox/mlx5/core/Makefile
+++ b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
@@ -52,7 +52,8 @@ mlx5_core-$(CONFIG_MLX5_CLS_ACT) +=
en/tc/act/tun.o en/tc/act/csum.o en/tc/act/pedit.o \
en/tc/act/vlan.o en/tc/act/vlan_mangle.o en/tc/act/mpls.o \
en/tc/act/mirred.o en/tc/act/mirred_nic.o \
- en/tc/act/ct.o en/tc/act/sample.o en/tc/act/ptype.o
+ en/tc/act/ct.o en/tc/act/sample.o en/tc/act/ptype.o \
+ en/tc/act/redirect_ingress.o
mlx5_core-$(CONFIG_MLX5_TC_CT) += en/tc_ct.o
mlx5_core-$(CONFIG_MLX5_TC_SAMPLE) += en/tc/sample.o
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/act.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/act.c
@@ -13,7 +13,7 @@ static struct mlx5e_tc_act *tc_acts_fdb[
&mlx5e_tc_act_goto,
&mlx5e_tc_act_mirred,
&mlx5e_tc_act_mirred,
- NULL, /* FLOW_ACTION_REDIRECT_INGRESS, */
+ &mlx5e_tc_act_redirect_ingress,
NULL, /* FLOW_ACTION_MIRRED_INGRESS, */
&mlx5e_tc_act_vlan,
&mlx5e_tc_act_vlan,
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/act.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/act.h
@@ -57,6 +57,7 @@ extern struct mlx5e_tc_act mlx5e_tc_act_
extern struct mlx5e_tc_act mlx5e_tc_act_ct;
extern struct mlx5e_tc_act mlx5e_tc_act_sample;
extern struct mlx5e_tc_act mlx5e_tc_act_ptype;
+extern struct mlx5e_tc_act mlx5e_tc_act_redirect_ingress;
struct mlx5e_tc_act *
mlx5e_tc_act_get(enum flow_action_id act_id,
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/redirect_ingress.c
@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+// Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+
+#include "act.h"
+#include "en/tc_priv.h"
+
+static bool
+tc_act_can_offload_redirect_ingress(struct mlx5e_tc_act_parse_state *parse_state,
+ const struct flow_action_entry *act,
+ int act_index)
+{
+ struct netlink_ext_ack *extack = parse_state->extack;
+ struct mlx5e_tc_flow *flow = parse_state->flow;
+ struct mlx5e_tc_flow_parse_attr *parse_attr;
+ struct net_device *out_dev = act->dev;
+ struct mlx5_esw_flow_attr *esw_attr;
+
+ parse_attr = flow->attr->parse_attr;
+ esw_attr = flow->attr->esw_attr;
+
+ if (!out_dev)
+ return false;
+
+ if (!netif_is_ovs_master(out_dev)) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "redirect to ingress is supported only for OVS internal ports");
+ return false;
+ }
+
+ if (netif_is_ovs_master(parse_attr->filter_dev)) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "redirect to ingress is not supported from internal port");
+ return false;
+ }
+
+ if (!parse_state->ptype_host) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "redirect to int port ingress requires ptype=host action");
+ return false;
+ }
+
+ if (esw_attr->out_count) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "redirect to int port ingress is supported only as single destination");
+ return false;
+ }
+
+ return true;
+}
+
+static int
+tc_act_parse_redirect_ingress(struct mlx5e_tc_act_parse_state *parse_state,
+ const struct flow_action_entry *act,
+ struct mlx5e_priv *priv,
+ struct mlx5_flow_attr *attr)
+{
+ struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr;
+ struct net_device *out_dev = act->dev;
+ int err;
+
+ attr->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST |
+ MLX5_FLOW_CONTEXT_ACTION_COUNT;
+
+ err = mlx5e_set_fwd_to_int_port_actions(priv, attr, out_dev->ifindex,
+ MLX5E_TC_INT_PORT_INGRESS,
+ &attr->action, esw_attr->out_count);
+ if (err)
+ return err;
+
+ esw_attr->out_count++;
+
+ return 0;
+}
+
+struct mlx5e_tc_act mlx5e_tc_act_redirect_ingress = {
+ .can_offload = tc_act_can_offload_redirect_ingress,
+ .parse_action = tc_act_parse_redirect_ingress,
+};
+
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -3363,55 +3363,6 @@ static int parse_tc_fdb_actions(struct m
hdrs = parse_state->hdrs;
flow_action_for_each(i, act, flow_action) {
- switch (act->id) {
- case FLOW_ACTION_REDIRECT_INGRESS: {
- struct net_device *out_dev;
-
- out_dev = act->dev;
- if (!out_dev)
- return -EOPNOTSUPP;
-
- if (!netif_is_ovs_master(out_dev)) {
- NL_SET_ERR_MSG_MOD(extack,
- "redirect to ingress is supported only for OVS internal ports");
- return -EOPNOTSUPP;
- }
-
- if (netif_is_ovs_master(parse_attr->filter_dev)) {
- NL_SET_ERR_MSG_MOD(extack,
- "redirect to ingress is not supported from internal port");
- return -EOPNOTSUPP;
- }
-
- if (!parse_state->ptype_host) {
- NL_SET_ERR_MSG_MOD(extack,
- "redirect to int port ingress requires ptype=host action");
- return -EOPNOTSUPP;
- }
-
- if (esw_attr->out_count) {
- NL_SET_ERR_MSG_MOD(extack,
- "redirect to int port ingress is supported only as single destination");
- return -EOPNOTSUPP;
- }
-
- attr->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST |
- MLX5_FLOW_CONTEXT_ACTION_COUNT;
-
- err = mlx5e_set_fwd_to_int_port_actions(priv, attr, out_dev->ifindex,
- MLX5E_TC_INT_PORT_INGRESS,
- &attr->action, esw_attr->out_count);
- if (err)
- return err;
-
- esw_attr->out_count++;
-
- break;
- }
- default:
- break;
- }
-
tc_act = mlx5e_tc_act_get(act->id, ns_type);
if (!tc_act) {
NL_SET_ERR_MSG_MOD(extack, "Not implemented offload action");