| // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB |
| // Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. All rights reserved. |
| |
| #include "act.h" |
| #include "en/tc/post_act.h" |
| #include "en/tc_priv.h" |
| #include "mlx5_core.h" |
| |
| /* Must be aligned with enum flow_action_id. */ |
| static struct mlx5e_tc_act *tc_acts_fdb[NUM_FLOW_ACTIONS] = { |
| &mlx5e_tc_act_accept, |
| &mlx5e_tc_act_drop, |
| &mlx5e_tc_act_trap, |
| &mlx5e_tc_act_goto, |
| &mlx5e_tc_act_mirred, |
| &mlx5e_tc_act_mirred, |
| &mlx5e_tc_act_redirect_ingress, |
| NULL, /* FLOW_ACTION_MIRRED_INGRESS, */ |
| &mlx5e_tc_act_vlan, |
| &mlx5e_tc_act_vlan, |
| &mlx5e_tc_act_vlan_mangle, |
| &mlx5e_tc_act_tun_encap, |
| &mlx5e_tc_act_tun_decap, |
| &mlx5e_tc_act_pedit, |
| &mlx5e_tc_act_pedit, |
| &mlx5e_tc_act_csum, |
| NULL, /* FLOW_ACTION_MARK, */ |
| &mlx5e_tc_act_ptype, |
| NULL, /* FLOW_ACTION_PRIORITY, */ |
| NULL, /* FLOW_ACTION_WAKE, */ |
| NULL, /* FLOW_ACTION_QUEUE, */ |
| &mlx5e_tc_act_sample, |
| &mlx5e_tc_act_police, |
| &mlx5e_tc_act_ct, |
| NULL, /* FLOW_ACTION_CT_METADATA, */ |
| &mlx5e_tc_act_mpls_push, |
| &mlx5e_tc_act_mpls_pop, |
| NULL, /* FLOW_ACTION_MPLS_MANGLE, */ |
| NULL, /* FLOW_ACTION_GATE, */ |
| NULL, /* FLOW_ACTION_PPPOE_PUSH, */ |
| NULL, /* FLOW_ACTION_JUMP, */ |
| NULL, /* FLOW_ACTION_PIPE, */ |
| &mlx5e_tc_act_vlan, |
| &mlx5e_tc_act_vlan, |
| }; |
| |
| /* Must be aligned with enum flow_action_id. */ |
| static struct mlx5e_tc_act *tc_acts_nic[NUM_FLOW_ACTIONS] = { |
| &mlx5e_tc_act_accept, |
| &mlx5e_tc_act_drop, |
| NULL, /* FLOW_ACTION_TRAP, */ |
| &mlx5e_tc_act_goto, |
| &mlx5e_tc_act_mirred_nic, |
| NULL, /* FLOW_ACTION_MIRRED, */ |
| NULL, /* FLOW_ACTION_REDIRECT_INGRESS, */ |
| NULL, /* FLOW_ACTION_MIRRED_INGRESS, */ |
| NULL, /* FLOW_ACTION_VLAN_PUSH, */ |
| NULL, /* FLOW_ACTION_VLAN_POP, */ |
| NULL, /* FLOW_ACTION_VLAN_MANGLE, */ |
| NULL, /* FLOW_ACTION_TUNNEL_ENCAP, */ |
| NULL, /* FLOW_ACTION_TUNNEL_DECAP, */ |
| &mlx5e_tc_act_pedit, |
| &mlx5e_tc_act_pedit, |
| &mlx5e_tc_act_csum, |
| &mlx5e_tc_act_mark, |
| NULL, /* FLOW_ACTION_PTYPE, */ |
| NULL, /* FLOW_ACTION_PRIORITY, */ |
| NULL, /* FLOW_ACTION_WAKE, */ |
| NULL, /* FLOW_ACTION_QUEUE, */ |
| NULL, /* FLOW_ACTION_SAMPLE, */ |
| NULL, /* FLOW_ACTION_POLICE, */ |
| &mlx5e_tc_act_ct, |
| }; |
| |
| /** |
| * mlx5e_tc_act_get() - Get an action parser for an action id. |
| * @act_id: Flow action id. |
| * @ns_type: flow namespace type. |
| */ |
| struct mlx5e_tc_act * |
| mlx5e_tc_act_get(enum flow_action_id act_id, |
| enum mlx5_flow_namespace_type ns_type) |
| { |
| struct mlx5e_tc_act **tc_acts; |
| |
| tc_acts = ns_type == MLX5_FLOW_NAMESPACE_FDB ? tc_acts_fdb : tc_acts_nic; |
| |
| return tc_acts[act_id]; |
| } |
| |
| /** |
| * mlx5e_tc_act_init_parse_state() - Init a new parse_state. |
| * @parse_state: Parsing state. |
| * @flow: mlx5e tc flow being handled. |
| * @flow_action: flow action to parse. |
| * @extack: to set an error msg. |
| * |
| * The same parse_state should be passed to action parsers |
| * for tracking the current parsing state. |
| */ |
| void |
| mlx5e_tc_act_init_parse_state(struct mlx5e_tc_act_parse_state *parse_state, |
| struct mlx5e_tc_flow *flow, |
| struct flow_action *flow_action, |
| struct netlink_ext_ack *extack) |
| { |
| memset(parse_state, 0, sizeof(*parse_state)); |
| parse_state->flow = flow; |
| parse_state->extack = extack; |
| parse_state->flow_action = flow_action; |
| } |
| |
| void |
| mlx5e_tc_act_reorder_flow_actions(struct flow_action *flow_action, |
| struct mlx5e_tc_flow_action *flow_action_reorder) |
| { |
| struct flow_action_entry *act; |
| int i, j = 0; |
| |
| flow_action_for_each(i, act, flow_action) { |
| /* Add CT action to be first. */ |
| if (act->id == FLOW_ACTION_CT) |
| flow_action_reorder->entries[j++] = act; |
| } |
| |
| flow_action_for_each(i, act, flow_action) { |
| if (act->id == FLOW_ACTION_CT) |
| continue; |
| flow_action_reorder->entries[j++] = act; |
| } |
| } |
| |
| int |
| mlx5e_tc_act_post_parse(struct mlx5e_tc_act_parse_state *parse_state, |
| struct flow_action *flow_action, |
| struct mlx5_flow_attr *attr, |
| enum mlx5_flow_namespace_type ns_type) |
| { |
| struct flow_action_entry *act; |
| struct mlx5e_tc_act *tc_act; |
| struct mlx5e_priv *priv; |
| int err = 0, i; |
| |
| priv = parse_state->flow->priv; |
| |
| flow_action_for_each(i, act, flow_action) { |
| tc_act = mlx5e_tc_act_get(act->id, ns_type); |
| if (!tc_act || !tc_act->post_parse) |
| continue; |
| |
| err = tc_act->post_parse(parse_state, priv, attr); |
| if (err) |
| goto out; |
| } |
| |
| out: |
| return err; |
| } |
| |
| int |
| mlx5e_tc_act_set_next_post_act(struct mlx5e_tc_flow *flow, |
| struct mlx5_flow_attr *attr, |
| struct mlx5_flow_attr *next_attr) |
| { |
| struct mlx5_core_dev *mdev = flow->priv->mdev; |
| struct mlx5e_tc_mod_hdr_acts *mod_acts; |
| int err; |
| |
| mod_acts = &attr->parse_attr->mod_hdr_acts; |
| |
| /* Set handle on current post act rule to next post act rule. */ |
| err = mlx5e_tc_post_act_set_handle(mdev, next_attr->post_act_handle, mod_acts); |
| if (err) { |
| mlx5_core_warn(mdev, "Failed setting post action handle"); |
| return err; |
| } |
| |
| attr->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST | |
| MLX5_FLOW_CONTEXT_ACTION_MOD_HDR; |
| |
| return 0; |
| } |