| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Or Gerlitz | 7943 | 49.62% | 77 | 48.12% |
| Roi Dayan | 1574 | 9.83% | 8 | 5.00% |
| Amir Vadai | 1518 | 9.48% | 4 | 2.50% |
| Hadar Hen Zion | 1252 | 7.82% | 7 | 4.38% |
| Oz Shlomo | 830 | 5.18% | 8 | 5.00% |
| Eli Britstein | 698 | 4.36% | 9 | 5.62% |
| Paul Blakey | 566 | 3.54% | 6 | 3.75% |
| Jianbo Liu | 557 | 3.48% | 6 | 3.75% |
| Alaa Hleihel | 304 | 1.90% | 2 | 1.25% |
| Rabie Loulou | 143 | 0.89% | 4 | 2.50% |
| Mark Bloch | 139 | 0.87% | 5 | 3.12% |
| Chris Mi | 137 | 0.86% | 2 | 1.25% |
| Aviv Heller | 69 | 0.43% | 2 | 1.25% |
| Shahar Klein | 59 | 0.37% | 2 | 1.25% |
| Saeed Mahameed | 41 | 0.26% | 1 | 0.62% |
| David S. Miller | 36 | 0.22% | 2 | 1.25% |
| Américo Wang | 31 | 0.19% | 3 | 1.88% |
| Maor Gottlieb | 30 | 0.19% | 3 | 1.88% |
| Guy Shattah | 25 | 0.16% | 1 | 0.62% |
| Tonghao Zhang | 24 | 0.15% | 1 | 0.62% |
| Aya Levin | 14 | 0.09% | 2 | 1.25% |
| Vlad Buslov | 7 | 0.04% | 1 | 0.62% |
| Jiri Pirko | 4 | 0.02% | 1 | 0.62% |
| Leon Romanovsky | 3 | 0.02% | 1 | 0.62% |
| Huy Nguyen | 3 | 0.02% | 1 | 0.62% |
| Jakub Kiciński | 1 | 0.01% | 1 | 0.62% |
| Total | 16008 | 160 |
/* * Copyright (c) 2016, Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include <net/flow_dissector.h> #include <net/sch_generic.h> #include <net/pkt_cls.h> #include <net/tc_act/tc_gact.h> #include <net/tc_act/tc_skbedit.h> #include <linux/mlx5/fs.h> #include <linux/mlx5/device.h> #include <linux/rhashtable.h> #include <net/switchdev.h> #include <net/tc_act/tc_mirred.h> #include <net/tc_act/tc_vlan.h> #include <net/tc_act/tc_tunnel_key.h> #include <net/tc_act/tc_pedit.h> #include <net/tc_act/tc_csum.h> #include <net/arp.h> #include "en.h" #include "en_rep.h" #include "en_tc.h" #include "eswitch.h" #include "fs_core.h" #include "en/port.h" #include "en/tc_tun.h" #include "lib/devcom.h" struct mlx5_nic_flow_attr { u32 action; u32 flow_tag; u32 mod_hdr_id; u32 hairpin_tirn; u8 match_level; struct mlx5_flow_table *hairpin_ft; struct mlx5_fc *counter; }; #define MLX5E_TC_FLOW_BASE (MLX5E_TC_LAST_EXPORTED_BIT + 1) enum { MLX5E_TC_FLOW_INGRESS = MLX5E_TC_INGRESS, MLX5E_TC_FLOW_EGRESS = MLX5E_TC_EGRESS, MLX5E_TC_FLOW_ESWITCH = MLX5E_TC_ESW_OFFLOAD, MLX5E_TC_FLOW_NIC = MLX5E_TC_NIC_OFFLOAD, MLX5E_TC_FLOW_OFFLOADED = BIT(MLX5E_TC_FLOW_BASE), MLX5E_TC_FLOW_HAIRPIN = BIT(MLX5E_TC_FLOW_BASE + 1), MLX5E_TC_FLOW_HAIRPIN_RSS = BIT(MLX5E_TC_FLOW_BASE + 2), MLX5E_TC_FLOW_SLOW = BIT(MLX5E_TC_FLOW_BASE + 3), MLX5E_TC_FLOW_DUP = BIT(MLX5E_TC_FLOW_BASE + 4), }; #define MLX5E_TC_MAX_SPLITS 1 /* Helper struct for accessing a struct containing list_head array. * Containing struct * |- Helper array * [0] Helper item 0 * |- list_head item 0 * |- index (0) * [1] Helper item 1 * |- list_head item 1 * |- index (1) * To access the containing struct from one of the list_head items: * 1. Get the helper item from the list_head item using * helper item = * container_of(list_head item, helper struct type, list_head field) * 2. Get the contining struct from the helper item and its index in the array: * containing struct = * container_of(helper item, containing struct type, helper field[index]) */ struct encap_flow_item { struct list_head list; int index; }; struct mlx5e_tc_flow { struct rhash_head node; struct mlx5e_priv *priv; u64 cookie; u16 flags; struct mlx5_flow_handle *rule[MLX5E_TC_MAX_SPLITS + 1]; /* Flow can be associated with multiple encap IDs. * The number of encaps is bounded by the number of supported * destinations. */ struct encap_flow_item encaps[MLX5_MAX_FLOW_FWD_VPORTS]; struct mlx5e_tc_flow *peer_flow; struct list_head mod_hdr; /* flows sharing the same mod hdr ID */ struct list_head hairpin; /* flows sharing the same hairpin */ struct list_head peer; /* flows with peer flow */ union { struct mlx5_esw_flow_attr esw_attr[0]; struct mlx5_nic_flow_attr nic_attr[0]; }; }; struct mlx5e_tc_flow_parse_attr { struct ip_tunnel_info tun_info[MLX5_MAX_FLOW_FWD_VPORTS]; struct net_device *filter_dev; struct mlx5_flow_spec spec; int num_mod_hdr_actions; int max_mod_hdr_actions; void *mod_hdr_actions; int mirred_ifindex[MLX5_MAX_FLOW_FWD_VPORTS]; }; #define MLX5E_TC_TABLE_NUM_GROUPS 4 #define MLX5E_TC_TABLE_MAX_GROUP_SIZE BIT(16) struct mlx5e_hairpin { struct mlx5_hairpin *pair; struct mlx5_core_dev *func_mdev; struct mlx5e_priv *func_priv; u32 tdn; u32 tirn; int num_channels; struct mlx5e_rqt indir_rqt; u32 indir_tirn[MLX5E_NUM_INDIR_TIRS]; struct mlx5e_ttc_table ttc; }; struct mlx5e_hairpin_entry { /* a node of a hash table which keeps all the hairpin entries */ struct hlist_node hairpin_hlist; /* flows sharing the same hairpin */ struct list_head flows; u16 peer_vhca_id; u8 prio; struct mlx5e_hairpin *hp; }; struct mod_hdr_key { int num_actions; void *actions; }; struct mlx5e_mod_hdr_entry { /* a node of a hash table which keeps all the mod_hdr entries */ struct hlist_node mod_hdr_hlist; /* flows sharing the same mod_hdr entry */ struct list_head flows; struct mod_hdr_key key; u32 mod_hdr_id; }; #define MLX5_MH_ACT_SZ MLX5_UN_SZ_BYTES(set_action_in_add_action_in_auto) static inline u32 hash_mod_hdr_info(struct mod_hdr_key *key) { return jhash(key->actions, key->num_actions * MLX5_MH_ACT_SZ, 0); } static inline int cmp_mod_hdr_info(struct mod_hdr_key *a, struct mod_hdr_key *b) { if (a->num_actions != b->num_actions) return 1; return memcmp(a->actions, b->actions, a->num_actions * MLX5_MH_ACT_SZ); } static int mlx5e_attach_mod_hdr(struct mlx5e_priv *priv, struct mlx5e_tc_flow *flow, struct mlx5e_tc_flow_parse_attr *parse_attr) { struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; int num_actions, actions_size, namespace, err; struct mlx5e_mod_hdr_entry *mh; struct mod_hdr_key key; bool found = false; u32 hash_key; num_actions = parse_attr->num_mod_hdr_actions; actions_size = MLX5_MH_ACT_SZ * num_actions; key.actions = parse_attr->mod_hdr_actions; key.num_actions = num_actions; hash_key = hash_mod_hdr_info(&key); if (flow->flags & MLX5E_TC_FLOW_ESWITCH) { namespace = MLX5_FLOW_NAMESPACE_FDB; hash_for_each_possible(esw->offloads.mod_hdr_tbl, mh, mod_hdr_hlist, hash_key) { if (!cmp_mod_hdr_info(&mh->key, &key)) { found = true; break; } } } else { namespace = MLX5_FLOW_NAMESPACE_KERNEL; hash_for_each_possible(priv->fs.tc.mod_hdr_tbl, mh, mod_hdr_hlist, hash_key) { if (!cmp_mod_hdr_info(&mh->key, &key)) { found = true; break; } } } if (found) goto attach_flow; mh = kzalloc(sizeof(*mh) + actions_size, GFP_KERNEL); if (!mh) return -ENOMEM; mh->key.actions = (void *)mh + sizeof(*mh); memcpy(mh->key.actions, key.actions, actions_size); mh->key.num_actions = num_actions; INIT_LIST_HEAD(&mh->flows); err = mlx5_modify_header_alloc(priv->mdev, namespace, mh->key.num_actions, mh->key.actions, &mh->mod_hdr_id); if (err) goto out_err; if (flow->flags & MLX5E_TC_FLOW_ESWITCH) hash_add(esw->offloads.mod_hdr_tbl, &mh->mod_hdr_hlist, hash_key); else hash_add(priv->fs.tc.mod_hdr_tbl, &mh->mod_hdr_hlist, hash_key); attach_flow: list_add(&flow->mod_hdr, &mh->flows); if (flow->flags & MLX5E_TC_FLOW_ESWITCH) flow->esw_attr->mod_hdr_id = mh->mod_hdr_id; else flow->nic_attr->mod_hdr_id = mh->mod_hdr_id; return 0; out_err: kfree(mh); return err; } static void mlx5e_detach_mod_hdr(struct mlx5e_priv *priv, struct mlx5e_tc_flow *flow) { struct list_head *next = flow->mod_hdr.next; list_del(&flow->mod_hdr); if (list_empty(next)) { struct mlx5e_mod_hdr_entry *mh; mh = list_entry(next, struct mlx5e_mod_hdr_entry, flows); mlx5_modify_header_dealloc(priv->mdev, mh->mod_hdr_id); hash_del(&mh->mod_hdr_hlist); kfree(mh); } } static struct mlx5_core_dev *mlx5e_hairpin_get_mdev(struct net *net, int ifindex) { struct net_device *netdev; struct mlx5e_priv *priv; netdev = __dev_get_by_index(net, ifindex); priv = netdev_priv(netdev); return priv->mdev; } static int mlx5e_hairpin_create_transport(struct mlx5e_hairpin *hp) { u32 in[MLX5_ST_SZ_DW(create_tir_in)] = {0}; void *tirc; int err; err = mlx5_core_alloc_transport_domain(hp->func_mdev, &hp->tdn); if (err) goto alloc_tdn_err; tirc = MLX5_ADDR_OF(create_tir_in, in, ctx); MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_DIRECT); MLX5_SET(tirc, tirc, inline_rqn, hp->pair->rqn[0]); MLX5_SET(tirc, tirc, transport_domain, hp->tdn); err = mlx5_core_create_tir(hp->func_mdev, in, MLX5_ST_SZ_BYTES(create_tir_in), &hp->tirn); if (err) goto create_tir_err; return 0; create_tir_err: mlx5_core_dealloc_transport_domain(hp->func_mdev, hp->tdn); alloc_tdn_err: return err; } static void mlx5e_hairpin_destroy_transport(struct mlx5e_hairpin *hp) { mlx5_core_destroy_tir(hp->func_mdev, hp->tirn); mlx5_core_dealloc_transport_domain(hp->func_mdev, hp->tdn); } static void mlx5e_hairpin_fill_rqt_rqns(struct mlx5e_hairpin *hp, void *rqtc) { u32 indirection_rqt[MLX5E_INDIR_RQT_SIZE], rqn; struct mlx5e_priv *priv = hp->func_priv; int i, ix, sz = MLX5E_INDIR_RQT_SIZE; mlx5e_build_default_indir_rqt(indirection_rqt, sz, hp->num_channels); for (i = 0; i < sz; i++) { ix = i; if (priv->rss_params.hfunc == ETH_RSS_HASH_XOR) ix = mlx5e_bits_invert(i, ilog2(sz)); ix = indirection_rqt[ix]; rqn = hp->pair->rqn[ix]; MLX5_SET(rqtc, rqtc, rq_num[i], rqn); } } static int mlx5e_hairpin_create_indirect_rqt(struct mlx5e_hairpin *hp) { int inlen, err, sz = MLX5E_INDIR_RQT_SIZE; struct mlx5e_priv *priv = hp->func_priv; struct mlx5_core_dev *mdev = priv->mdev; void *rqtc; u32 *in; inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz; in = kvzalloc(inlen, GFP_KERNEL); if (!in) return -ENOMEM; rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context); MLX5_SET(rqtc, rqtc, rqt_actual_size, sz); MLX5_SET(rqtc, rqtc, rqt_max_size, sz); mlx5e_hairpin_fill_rqt_rqns(hp, rqtc); err = mlx5_core_create_rqt(mdev, in, inlen, &hp->indir_rqt.rqtn); if (!err) hp->indir_rqt.enabled = true; kvfree(in); return err; } static int mlx5e_hairpin_create_indirect_tirs(struct mlx5e_hairpin *hp) { struct mlx5e_priv *priv = hp->func_priv; u32 in[MLX5_ST_SZ_DW(create_tir_in)]; int tt, i, err; void *tirc; for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) { struct mlx5e_tirc_config ttconfig = mlx5e_tirc_get_default_config(tt); memset(in, 0, MLX5_ST_SZ_BYTES(create_tir_in)); tirc = MLX5_ADDR_OF(create_tir_in, in, ctx); MLX5_SET(tirc, tirc, transport_domain, hp->tdn); MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_INDIRECT); MLX5_SET(tirc, tirc, indirect_table, hp->indir_rqt.rqtn); mlx5e_build_indir_tir_ctx_hash(&priv->rss_params, &ttconfig, tirc, false); err = mlx5_core_create_tir(hp->func_mdev, in, MLX5_ST_SZ_BYTES(create_tir_in), &hp->indir_tirn[tt]); if (err) { mlx5_core_warn(hp->func_mdev, "create indirect tirs failed, %d\n", err); goto err_destroy_tirs; } } return 0; err_destroy_tirs: for (i = 0; i < tt; i++) mlx5_core_destroy_tir(hp->func_mdev, hp->indir_tirn[i]); return err; } static void mlx5e_hairpin_destroy_indirect_tirs(struct mlx5e_hairpin *hp) { int tt; for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) mlx5_core_destroy_tir(hp->func_mdev, hp->indir_tirn[tt]); } static void mlx5e_hairpin_set_ttc_params(struct mlx5e_hairpin *hp, struct ttc_params *ttc_params) { struct mlx5_flow_table_attr *ft_attr = &ttc_params->ft_attr; int tt; memset(ttc_params, 0, sizeof(*ttc_params)); ttc_params->any_tt_tirn = hp->tirn; for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) ttc_params->indir_tirn[tt] = hp->indir_tirn[tt]; ft_attr->max_fte = MLX5E_NUM_TT; ft_attr->level = MLX5E_TC_TTC_FT_LEVEL; ft_attr->prio = MLX5E_TC_PRIO; } static int mlx5e_hairpin_rss_init(struct mlx5e_hairpin *hp) { struct mlx5e_priv *priv = hp->func_priv; struct ttc_params ttc_params; int err; err = mlx5e_hairpin_create_indirect_rqt(hp); if (err) return err; err = mlx5e_hairpin_create_indirect_tirs(hp); if (err) goto err_create_indirect_tirs; mlx5e_hairpin_set_ttc_params(hp, &ttc_params); err = mlx5e_create_ttc_table(priv, &ttc_params, &hp->ttc); if (err) goto err_create_ttc_table; netdev_dbg(priv->netdev, "add hairpin: using %d channels rss ttc table id %x\n", hp->num_channels, hp->ttc.ft.t->id); return 0; err_create_ttc_table: mlx5e_hairpin_destroy_indirect_tirs(hp); err_create_indirect_tirs: mlx5e_destroy_rqt(priv, &hp->indir_rqt); return err; } static void mlx5e_hairpin_rss_cleanup(struct mlx5e_hairpin *hp) { struct mlx5e_priv *priv = hp->func_priv; mlx5e_destroy_ttc_table(priv, &hp->ttc); mlx5e_hairpin_destroy_indirect_tirs(hp); mlx5e_destroy_rqt(priv, &hp->indir_rqt); } static struct mlx5e_hairpin * mlx5e_hairpin_create(struct mlx5e_priv *priv, struct mlx5_hairpin_params *params, int peer_ifindex) { struct mlx5_core_dev *func_mdev, *peer_mdev; struct mlx5e_hairpin *hp; struct mlx5_hairpin *pair; int err; hp = kzalloc(sizeof(*hp), GFP_KERNEL); if (!hp) return ERR_PTR(-ENOMEM); func_mdev = priv->mdev; peer_mdev = mlx5e_hairpin_get_mdev(dev_net(priv->netdev), peer_ifindex); pair = mlx5_core_hairpin_create(func_mdev, peer_mdev, params); if (IS_ERR(pair)) { err = PTR_ERR(pair); goto create_pair_err; } hp->pair = pair; hp->func_mdev = func_mdev; hp->func_priv = priv; hp->num_channels = params->num_channels; err = mlx5e_hairpin_create_transport(hp); if (err) goto create_transport_err; if (hp->num_channels > 1) { err = mlx5e_hairpin_rss_init(hp); if (err) goto rss_init_err; } return hp; rss_init_err: mlx5e_hairpin_destroy_transport(hp); create_transport_err: mlx5_core_hairpin_destroy(hp->pair); create_pair_err: kfree(hp); return ERR_PTR(err); } static void mlx5e_hairpin_destroy(struct mlx5e_hairpin *hp) { if (hp->num_channels > 1) mlx5e_hairpin_rss_cleanup(hp); mlx5e_hairpin_destroy_transport(hp); mlx5_core_hairpin_destroy(hp->pair); kvfree(hp); } static inline u32 hash_hairpin_info(u16 peer_vhca_id, u8 prio) { return (peer_vhca_id << 16 | prio); } static struct mlx5e_hairpin_entry *mlx5e_hairpin_get(struct mlx5e_priv *priv, u16 peer_vhca_id, u8 prio) { struct mlx5e_hairpin_entry *hpe; u32 hash_key = hash_hairpin_info(peer_vhca_id, prio); hash_for_each_possible(priv->fs.tc.hairpin_tbl, hpe, hairpin_hlist, hash_key) { if (hpe->peer_vhca_id == peer_vhca_id && hpe->prio == prio) return hpe; } return NULL; } #define UNKNOWN_MATCH_PRIO 8 static int mlx5e_hairpin_get_prio(struct mlx5e_priv *priv, struct mlx5_flow_spec *spec, u8 *match_prio, struct netlink_ext_ack *extack) { void *headers_c, *headers_v; u8 prio_val, prio_mask = 0; bool vlan_present; #ifdef CONFIG_MLX5_CORE_EN_DCB if (priv->dcbx_dp.trust_state != MLX5_QPTS_TRUST_PCP) { NL_SET_ERR_MSG_MOD(extack, "only PCP trust state supported for hairpin"); return -EOPNOTSUPP; } #endif headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, outer_headers); headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, outer_headers); vlan_present = MLX5_GET(fte_match_set_lyr_2_4, headers_v, cvlan_tag); if (vlan_present) { prio_mask = MLX5_GET(fte_match_set_lyr_2_4, headers_c, first_prio); prio_val = MLX5_GET(fte_match_set_lyr_2_4, headers_v, first_prio); } if (!vlan_present || !prio_mask) { prio_val = UNKNOWN_MATCH_PRIO; } else if (prio_mask != 0x7) { NL_SET_ERR_MSG_MOD(extack, "masked priority match not supported for hairpin"); return -EOPNOTSUPP; } *match_prio = prio_val; return 0; } static int mlx5e_hairpin_flow_add(struct mlx5e_priv *priv, struct mlx5e_tc_flow *flow, struct mlx5e_tc_flow_parse_attr *parse_attr, struct netlink_ext_ack *extack) { int peer_ifindex = parse_attr->mirred_ifindex[0]; struct mlx5_hairpin_params params; struct mlx5_core_dev *peer_mdev; struct mlx5e_hairpin_entry *hpe; struct mlx5e_hairpin *hp; u64 link_speed64; u32 link_speed; u8 match_prio; u16 peer_id; int err; peer_mdev = mlx5e_hairpin_get_mdev(dev_net(priv->netdev), peer_ifindex); if (!MLX5_CAP_GEN(priv->mdev, hairpin) || !MLX5_CAP_GEN(peer_mdev, hairpin)) { NL_SET_ERR_MSG_MOD(extack, "hairpin is not supported"); return -EOPNOTSUPP; } peer_id = MLX5_CAP_GEN(peer_mdev, vhca_id); err = mlx5e_hairpin_get_prio(priv, &parse_attr->spec, &match_prio, extack); if (err) return err; hpe = mlx5e_hairpin_get(priv, peer_id, match_prio); if (hpe) goto attach_flow; hpe = kzalloc(sizeof(*hpe), GFP_KERNEL); if (!hpe) return -ENOMEM; INIT_LIST_HEAD(&hpe->flows); hpe->peer_vhca_id = peer_id; hpe->prio = match_prio; params.log_data_size = 15; params.log_data_size = min_t(u8, params.log_data_size, MLX5_CAP_GEN(priv->mdev, log_max_hairpin_wq_data_sz)); params.log_data_size = max_t(u8, params.log_data_size, MLX5_CAP_GEN(priv->mdev, log_min_hairpin_wq_data_sz)); params.log_num_packets = params.log_data_size - MLX5_MPWRQ_MIN_LOG_STRIDE_SZ(priv->mdev); params.log_num_packets = min_t(u8, params.log_num_packets, MLX5_CAP_GEN(priv->mdev, log_max_hairpin_num_packets)); params.q_counter = priv->q_counter; /* set hairpin pair per each 50Gbs share of the link */ mlx5e_port_max_linkspeed(priv->mdev, &link_speed); link_speed = max_t(u32, link_speed, 50000); link_speed64 = link_speed; do_div(link_speed64, 50000); params.num_channels = link_speed64; hp = mlx5e_hairpin_create(priv, ¶ms, peer_ifindex); if (IS_ERR(hp)) { err = PTR_ERR(hp); goto create_hairpin_err; } netdev_dbg(priv->netdev, "add hairpin: tirn %x rqn %x peer %s sqn %x prio %d (log) data %d packets %d\n", hp->tirn, hp->pair->rqn[0], hp->pair->peer_mdev->priv.name, hp->pair->sqn[0], match_prio, params.log_data_size, params.log_num_packets); hpe->hp = hp; hash_add(priv->fs.tc.hairpin_tbl, &hpe->hairpin_hlist, hash_hairpin_info(peer_id, match_prio)); attach_flow: if (hpe->hp->num_channels > 1) { flow->flags |= MLX5E_TC_FLOW_HAIRPIN_RSS; flow->nic_attr->hairpin_ft = hpe->hp->ttc.ft.t; } else { flow->nic_attr->hairpin_tirn = hpe->hp->tirn; } list_add(&flow->hairpin, &hpe->flows); return 0; create_hairpin_err: kfree(hpe); return err; } static void mlx5e_hairpin_flow_del(struct mlx5e_priv *priv, struct mlx5e_tc_flow *flow) { struct list_head *next = flow->hairpin.next; list_del(&flow->hairpin); /* no more hairpin flows for us, release the hairpin pair */ if (list_empty(next)) { struct mlx5e_hairpin_entry *hpe; hpe = list_entry(next, struct mlx5e_hairpin_entry, flows); netdev_dbg(priv->netdev, "del hairpin: peer %s\n", hpe->hp->pair->peer_mdev->priv.name); mlx5e_hairpin_destroy(hpe->hp); hash_del(&hpe->hairpin_hlist); kfree(hpe); } } static int mlx5e_tc_add_nic_flow(struct mlx5e_priv *priv, struct mlx5e_tc_flow_parse_attr *parse_attr, struct mlx5e_tc_flow *flow, struct netlink_ext_ack *extack) { struct mlx5_nic_flow_attr *attr = flow->nic_attr; struct mlx5_core_dev *dev = priv->mdev; struct mlx5_flow_destination dest[2] = {}; struct mlx5_flow_act flow_act = { .action = attr->action, .flow_tag = attr->flow_tag, .reformat_id = 0, .flags = FLOW_ACT_HAS_TAG | FLOW_ACT_NO_APPEND, }; struct mlx5_fc *counter = NULL; bool table_created = false; int err, dest_ix = 0; if (flow->flags & MLX5E_TC_FLOW_HAIRPIN) { err = mlx5e_hairpin_flow_add(priv, flow, parse_attr, extack); if (err) { goto err_add_hairpin_flow; } if (flow->flags & MLX5E_TC_FLOW_HAIRPIN_RSS) { dest[dest_ix].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; dest[dest_ix].ft = attr->hairpin_ft; } else { dest[dest_ix].type = MLX5_FLOW_DESTINATION_TYPE_TIR; dest[dest_ix].tir_num = attr->hairpin_tirn; } dest_ix++; } else if (attr->action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) { dest[dest_ix].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; dest[dest_ix].ft = priv->fs.vlan.ft.t; dest_ix++; } if (attr->action & MLX5_FLOW_CONTEXT_ACTION_COUNT) { counter = mlx5_fc_create(dev, true); if (IS_ERR(counter)) { err = PTR_ERR(counter); goto err_fc_create; } dest[dest_ix].type = MLX5_FLOW_DESTINATION_TYPE_COUNTER; dest[dest_ix].counter_id = mlx5_fc_id(counter); dest_ix++; attr->counter = counter; } if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) { err = mlx5e_attach_mod_hdr(priv, flow, parse_attr); flow_act.modify_id = attr->mod_hdr_id; kfree(parse_attr->mod_hdr_actions); if (err) goto err_create_mod_hdr_id; } if (IS_ERR_OR_NULL(priv->fs.tc.t)) { int tc_grp_size, tc_tbl_size; u32 max_flow_counter; max_flow_counter = (MLX5_CAP_GEN(dev, max_flow_counter_31_16) << 16) | MLX5_CAP_GEN(dev, max_flow_counter_15_0); tc_grp_size = min_t(int, max_flow_counter, MLX5E_TC_TABLE_MAX_GROUP_SIZE); tc_tbl_size = min_t(int, tc_grp_size * MLX5E_TC_TABLE_NUM_GROUPS, BIT(MLX5_CAP_FLOWTABLE_NIC_RX(dev, log_max_ft_size))); priv->fs.tc.t = mlx5_create_auto_grouped_flow_table(priv->fs.ns, MLX5E_TC_PRIO, tc_tbl_size, MLX5E_TC_TABLE_NUM_GROUPS, MLX5E_TC_FT_LEVEL, 0); if (IS_ERR(priv->fs.tc.t)) { NL_SET_ERR_MSG_MOD(extack, "Failed to create tc offload table\n"); netdev_err(priv->netdev, "Failed to create tc offload table\n"); err = PTR_ERR(priv->fs.tc.t); goto err_create_ft; } table_created = true; } if (attr->match_level != MLX5_MATCH_NONE) parse_attr->spec.match_criteria_enable = MLX5_MATCH_OUTER_HEADERS; flow->rule[0] = mlx5_add_flow_rules(priv->fs.tc.t, &parse_attr->spec, &flow_act, dest, dest_ix); if (IS_ERR(flow->rule[0])) { err = PTR_ERR(flow->rule[0]); goto err_add_rule; } return 0; err_add_rule: if (table_created) { mlx5_destroy_flow_table(priv->fs.tc.t); priv->fs.tc.t = NULL; } err_create_ft: if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) mlx5e_detach_mod_hdr(priv, flow); err_create_mod_hdr_id: mlx5_fc_destroy(dev, counter); err_fc_create: if (flow->flags & MLX5E_TC_FLOW_HAIRPIN) mlx5e_hairpin_flow_del(priv, flow); err_add_hairpin_flow: return err; } static void mlx5e_tc_del_nic_flow(struct mlx5e_priv *priv, struct mlx5e_tc_flow *flow) { struct mlx5_nic_flow_attr *attr = flow->nic_attr; struct mlx5_fc *counter = NULL; counter = attr->counter; mlx5_del_flow_rules(flow->rule[0]); mlx5_fc_destroy(priv->mdev, counter); if (!mlx5e_tc_num_filters(priv, MLX5E_TC_NIC_OFFLOAD) && priv->fs.tc.t) { mlx5_destroy_flow_table(priv->fs.tc.t); priv->fs.tc.t = NULL; } if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) mlx5e_detach_mod_hdr(priv, flow); if (flow->flags & MLX5E_TC_FLOW_HAIRPIN) mlx5e_hairpin_flow_del(priv, flow); } static void mlx5e_detach_encap(struct mlx5e_priv *priv, struct mlx5e_tc_flow *flow, int out_index); static int mlx5e_attach_encap(struct mlx5e_priv *priv, struct ip_tunnel_info *tun_info, struct net_device *mirred_dev, struct net_device **encap_dev, struct mlx5e_tc_flow *flow, struct netlink_ext_ack *extack, int out_index); static struct mlx5_flow_handle * mlx5e_tc_offload_fdb_rules(struct mlx5_eswitch *esw, struct mlx5e_tc_flow *flow, struct mlx5_flow_spec *spec, struct mlx5_esw_flow_attr *attr) { struct mlx5_flow_handle *rule; rule = mlx5_eswitch_add_offloaded_rule(esw, spec, attr); if (IS_ERR(rule)) return rule; if (attr->split_count) { flow->rule[1] = mlx5_eswitch_add_fwd_rule(esw, spec, attr); if (IS_ERR(flow->rule[1])) { mlx5_eswitch_del_offloaded_rule(esw, rule, attr); return flow->rule[1]; } } flow->flags |= MLX5E_TC_FLOW_OFFLOADED; return rule; } static void mlx5e_tc_unoffload_fdb_rules(struct mlx5_eswitch *esw, struct mlx5e_tc_flow *flow, struct mlx5_esw_flow_attr *attr) { flow->flags &= ~MLX5E_TC_FLOW_OFFLOADED; if (attr->split_count) mlx5_eswitch_del_fwd_rule(esw, flow->rule[1], attr); mlx5_eswitch_del_offloaded_rule(esw, flow->rule[0], attr); } static struct mlx5_flow_handle * mlx5e_tc_offload_to_slow_path(struct mlx5_eswitch *esw, struct mlx5e_tc_flow *flow, struct mlx5_flow_spec *spec, struct mlx5_esw_flow_attr *slow_attr) { struct mlx5_flow_handle *rule; memcpy(slow_attr, flow->esw_attr, sizeof(*slow_attr)); slow_attr->action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; slow_attr->split_count = 0; slow_attr->dest_chain = FDB_SLOW_PATH_CHAIN; rule = mlx5e_tc_offload_fdb_rules(esw, flow, spec, slow_attr); if (!IS_ERR(rule)) flow->flags |= MLX5E_TC_FLOW_SLOW; return rule; } static void mlx5e_tc_unoffload_from_slow_path(struct mlx5_eswitch *esw, struct mlx5e_tc_flow *flow, struct mlx5_esw_flow_attr *slow_attr) { memcpy(slow_attr, flow->esw_attr, sizeof(*slow_attr)); slow_attr->action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; slow_attr->split_count = 0; slow_attr->dest_chain = FDB_SLOW_PATH_CHAIN; mlx5e_tc_unoffload_fdb_rules(esw, flow, slow_attr); flow->flags &= ~MLX5E_TC_FLOW_SLOW; } static int mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv, struct mlx5e_tc_flow_parse_attr *parse_attr, struct mlx5e_tc_flow *flow, struct netlink_ext_ack *extack) { struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; u32 max_chain = mlx5_eswitch_get_chain_range(esw); struct mlx5_esw_flow_attr *attr = flow->esw_attr; u16 max_prio = mlx5_eswitch_get_prio_range(esw); struct net_device *out_dev, *encap_dev = NULL; struct mlx5_fc *counter = NULL; struct mlx5e_rep_priv *rpriv; struct mlx5e_priv *out_priv; int err = 0, encap_err = 0; int out_index; if (!mlx5_eswitch_prios_supported(esw) && attr->prio != 1) { NL_SET_ERR_MSG(extack, "E-switch priorities unsupported, upgrade FW"); return -EOPNOTSUPP; } if (attr->chain > max_chain) { NL_SET_ERR_MSG(extack, "Requested chain is out of supported range"); err = -EOPNOTSUPP; goto err_max_prio_chain; } if (attr->prio > max_prio) { NL_SET_ERR_MSG(extack, "Requested priority is out of supported range"); err = -EOPNOTSUPP; goto err_max_prio_chain; } for (out_index = 0; out_index < MLX5_MAX_FLOW_FWD_VPORTS; out_index++) { int mirred_ifindex; if (!(attr->dests[out_index].flags & MLX5_ESW_DEST_ENCAP)) continue; mirred_ifindex = attr->parse_attr->mirred_ifindex[out_index]; out_dev = __dev_get_by_index(dev_net(priv->netdev), mirred_ifindex); err = mlx5e_attach_encap(priv, &parse_attr->tun_info[out_index], out_dev, &encap_dev, flow, extack, out_index); if (err && err != -EAGAIN) goto err_attach_encap; if (err == -EAGAIN) encap_err = err; out_priv = netdev_priv(encap_dev); rpriv = out_priv->ppriv; attr->dests[out_index].rep = rpriv->rep; attr->dests[out_index].mdev = out_priv->mdev; } err = mlx5_eswitch_add_vlan_action(esw, attr); if (err) goto err_add_vlan; if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) { err = mlx5e_attach_mod_hdr(priv, flow, parse_attr); kfree(parse_attr->mod_hdr_actions); if (err) goto err_mod_hdr; } if (attr->action & MLX5_FLOW_CONTEXT_ACTION_COUNT) { counter = mlx5_fc_create(attr->counter_dev, true); if (IS_ERR(counter)) { err = PTR_ERR(counter); goto err_create_counter; } attr->counter = counter; } /* we get here if (1) there's no error or when * (2) there's an encap action and we're on -EAGAIN (no valid neigh) */ if (encap_err == -EAGAIN) { /* continue with goto slow path rule instead */ struct mlx5_esw_flow_attr slow_attr; flow->rule[0] = mlx5e_tc_offload_to_slow_path(esw, flow, &parse_attr->spec, &slow_attr); } else { flow->rule[0] = mlx5e_tc_offload_fdb_rules(esw, flow, &parse_attr->spec, attr); } if (IS_ERR(flow->rule[0])) { err = PTR_ERR(flow->rule[0]); goto err_add_rule; } return 0; err_add_rule: mlx5_fc_destroy(attr->counter_dev, counter); err_create_counter: if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) mlx5e_detach_mod_hdr(priv, flow); err_mod_hdr: mlx5_eswitch_del_vlan_action(esw, attr); err_add_vlan: for (out_index = 0; out_index < MLX5_MAX_FLOW_FWD_VPORTS; out_index++) if (attr->dests[out_index].flags & MLX5_ESW_DEST_ENCAP) mlx5e_detach_encap(priv, flow, out_index); err_attach_encap: err_max_prio_chain: return err; } static void mlx5e_tc_del_fdb_flow(struct mlx5e_priv *priv, struct mlx5e_tc_flow *flow) { struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; struct mlx5_esw_flow_attr *attr = flow->esw_attr; struct mlx5_esw_flow_attr slow_attr; int out_index; if (flow->flags & MLX5E_TC_FLOW_OFFLOADED) { if (flow->flags & MLX5E_TC_FLOW_SLOW) mlx5e_tc_unoffload_from_slow_path(esw, flow, &slow_attr); else mlx5e_tc_unoffload_fdb_rules(esw, flow, attr); } mlx5_eswitch_del_vlan_action(esw, attr); for (out_index = 0; out_index < MLX5_MAX_FLOW_FWD_VPORTS; out_index++) if (attr->dests[out_index].flags & MLX5_ESW_DEST_ENCAP) mlx5e_detach_encap(priv, flow, out_index); kvfree(attr->parse_attr); if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) mlx5e_detach_mod_hdr(priv, flow); if (attr->action & MLX5_FLOW_CONTEXT_ACTION_COUNT) mlx5_fc_destroy(attr->counter_dev, attr->counter); } void mlx5e_tc_encap_flows_add(struct mlx5e_priv *priv, struct mlx5e_encap_entry *e) { struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; struct mlx5_esw_flow_attr slow_attr, *esw_attr; struct mlx5_flow_handle *rule; struct mlx5_flow_spec *spec; struct encap_flow_item *efi; struct mlx5e_tc_flow *flow; int err; err = mlx5_packet_reformat_alloc(priv->mdev, e->reformat_type, e->encap_size, e->encap_header, MLX5_FLOW_NAMESPACE_FDB, &e->encap_id); if (err) { mlx5_core_warn(priv->mdev, "Failed to offload cached encapsulation header, %d\n", err); return; } e->flags |= MLX5_ENCAP_ENTRY_VALID; mlx5e_rep_queue_neigh_stats_work(priv); list_for_each_entry(efi, &e->flows, list) { bool all_flow_encaps_valid = true; int i; flow = container_of(efi, struct mlx5e_tc_flow, encaps[efi->index]); esw_attr = flow->esw_attr; spec = &esw_attr->parse_attr->spec; esw_attr->dests[efi->index].encap_id = e->encap_id; esw_attr->dests[efi->index].flags |= MLX5_ESW_DEST_ENCAP_VALID; /* Flow can be associated with multiple encap entries. * Before offloading the flow verify that all of them have * a valid neighbour. */ for (i = 0; i < MLX5_MAX_FLOW_FWD_VPORTS; i++) { if (!(esw_attr->dests[i].flags & MLX5_ESW_DEST_ENCAP)) continue; if (!(esw_attr->dests[i].flags & MLX5_ESW_DEST_ENCAP_VALID)) { all_flow_encaps_valid = false; break; } } /* Do not offload flows with unresolved neighbors */ if (!all_flow_encaps_valid) continue; /* update from slow path rule to encap rule */ rule = mlx5e_tc_offload_fdb_rules(esw, flow, spec, esw_attr); if (IS_ERR(rule)) { err = PTR_ERR(rule); mlx5_core_warn(priv->mdev, "Failed to update cached encapsulation flow, %d\n", err); continue; } mlx5e_tc_unoffload_from_slow_path(esw, flow, &slow_attr); flow->flags |= MLX5E_TC_FLOW_OFFLOADED; /* was unset when slow path rule removed */ flow->rule[0] = rule; } } void mlx5e_tc_encap_flows_del(struct mlx5e_priv *priv, struct mlx5e_encap_entry *e) { struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; struct mlx5_esw_flow_attr slow_attr; struct mlx5_flow_handle *rule; struct mlx5_flow_spec *spec; struct encap_flow_item *efi; struct mlx5e_tc_flow *flow; int err; list_for_each_entry(efi, &e->flows, list) { flow = container_of(efi, struct mlx5e_tc_flow, encaps[efi->index]); spec = &flow->esw_attr->parse_attr->spec; /* update from encap rule to slow path rule */ rule = mlx5e_tc_offload_to_slow_path(esw, flow, spec, &slow_attr); /* mark the flow's encap dest as non-valid */ flow->esw_attr->dests[efi->index].flags &= ~MLX5_ESW_DEST_ENCAP_VALID; if (IS_ERR(rule)) { err = PTR_ERR(rule); mlx5_core_warn(priv->mdev, "Failed to update slow path (encap) flow, %d\n", err); continue; } mlx5e_tc_unoffload_fdb_rules(esw, flow, flow->esw_attr); flow->flags |= MLX5E_TC_FLOW_OFFLOADED; /* was unset when fast path rule removed */ flow->rule[0] = rule; } /* we know that the encap is valid */ e->flags &= ~MLX5_ENCAP_ENTRY_VALID; mlx5_packet_reformat_dealloc(priv->mdev, e->encap_id); } static struct mlx5_fc *mlx5e_tc_get_counter(struct mlx5e_tc_flow *flow) { if (flow->flags & MLX5E_TC_FLOW_ESWITCH) return flow->esw_attr->counter; else return flow->nic_attr->counter; } void mlx5e_tc_update_neigh_used_value(struct mlx5e_neigh_hash_entry *nhe) { struct mlx5e_neigh *m_neigh = &nhe->m_neigh; u64 bytes, packets, lastuse = 0; struct mlx5e_tc_flow *flow; struct mlx5e_encap_entry *e; struct mlx5_fc *counter; struct neigh_table *tbl; bool neigh_used = false; struct neighbour *n; if (m_neigh->family == AF_INET) tbl = &arp_tbl; #if IS_ENABLED(CONFIG_IPV6) else if (m_neigh->family == AF_INET6) tbl = &nd_tbl; #endif else return; list_for_each_entry(e, &nhe->encap_list, encap_list) { struct encap_flow_item *efi; if (!(e->flags & MLX5_ENCAP_ENTRY_VALID)) continue; list_for_each_entry(efi, &e->flows, list) { flow = container_of(efi, struct mlx5e_tc_flow, encaps[efi->index]); if (flow->flags & MLX5E_TC_FLOW_OFFLOADED) { counter = mlx5e_tc_get_counter(flow); mlx5_fc_query_cached(counter, &bytes, &packets, &lastuse); if (time_after((unsigned long)lastuse, nhe->reported_lastuse)) { neigh_used = true; break; } } } if (neigh_used) break; } if (neigh_used) { nhe->reported_lastuse = jiffies; /* find the relevant neigh according to the cached device and * dst ip pair */ n = neigh_lookup(tbl, &m_neigh->dst_ip, m_neigh->dev); if (!n) return; neigh_event_send(n, NULL); neigh_release(n); } } static void mlx5e_detach_encap(struct mlx5e_priv *priv, struct mlx5e_tc_flow *flow, int out_index) { struct list_head *next = flow->encaps[out_index].list.next; list_del(&flow->encaps[out_index].list); if (list_empty(next)) { struct mlx5e_encap_entry *e; e = list_entry(next, struct mlx5e_encap_entry, flows); mlx5e_rep_encap_entry_detach(netdev_priv(e->out_dev), e); if (e->flags & MLX5_ENCAP_ENTRY_VALID) mlx5_packet_reformat_dealloc(priv->mdev, e->encap_id); hash_del_rcu(&e->encap_hlist); kfree(e->encap_header); kfree(e); } } static void __mlx5e_tc_del_fdb_peer_flow(struct mlx5e_tc_flow *flow) { struct mlx5_eswitch *esw = flow->priv->mdev->priv.eswitch; if (!(flow->flags & MLX5E_TC_FLOW_ESWITCH) || !(flow->flags & MLX5E_TC_FLOW_DUP)) return; mutex_lock(&esw->offloads.peer_mutex); list_del(&flow->peer); mutex_unlock(&esw->offloads.peer_mutex); flow->flags &= ~MLX5E_TC_FLOW_DUP; mlx5e_tc_del_fdb_flow(flow->peer_flow->priv, flow->peer_flow); kvfree(flow->peer_flow); flow->peer_flow = NULL; } static void mlx5e_tc_del_fdb_peer_flow(struct mlx5e_tc_flow *flow) { struct mlx5_core_dev *dev = flow->priv->mdev; struct mlx5_devcom *devcom = dev->priv.devcom; struct mlx5_eswitch *peer_esw; peer_esw = mlx5_devcom_get_peer_data(devcom, MLX5_DEVCOM_ESW_OFFLOADS); if (!peer_esw) return; __mlx5e_tc_del_fdb_peer_flow(flow); mlx5_devcom_release_peer_data(devcom, MLX5_DEVCOM_ESW_OFFLOADS); } static void mlx5e_tc_del_flow(struct mlx5e_priv *priv, struct mlx5e_tc_flow *flow) { if (flow->flags & MLX5E_TC_FLOW_ESWITCH) { mlx5e_tc_del_fdb_peer_flow(flow); mlx5e_tc_del_fdb_flow(priv, flow); } else { mlx5e_tc_del_nic_flow(priv, flow); } } static int parse_tunnel_attr(struct mlx5e_priv *priv, struct mlx5_flow_spec *spec, struct tc_cls_flower_offload *f, struct net_device *filter_dev, u8 *match_level) { struct netlink_ext_ack *extack = f->common.extack; void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, outer_headers); void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, outer_headers); struct flow_dissector_key_control *enc_control = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_ENC_CONTROL, f->key); int err = 0; err = mlx5e_tc_tun_parse(filter_dev, priv, spec, f, headers_c, headers_v, match_level); if (err) { NL_SET_ERR_MSG_MOD(extack, "failed to parse tunnel attributes"); return err; } if (enc_control->addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) { struct flow_dissector_key_ipv4_addrs *key = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, f->key); struct flow_dissector_key_ipv4_addrs *mask = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, f->mask); MLX5_SET(fte_match_set_lyr_2_4, headers_c, src_ipv4_src_ipv6.ipv4_layout.ipv4, ntohl(mask->src)); MLX5_SET(fte_match_set_lyr_2_4, headers_v, src_ipv4_src_ipv6.ipv4_layout.ipv4, ntohl(key->src)); MLX5_SET(fte_match_set_lyr_2_4, headers_c, dst_ipv4_dst_ipv6.ipv4_layout.ipv4, ntohl(mask->dst)); MLX5_SET(fte_match_set_lyr_2_4, headers_v, dst_ipv4_dst_ipv6.ipv4_layout.ipv4, ntohl(key->dst)); MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, ethertype); MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, ETH_P_IP); } else if (enc_control->addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) { struct flow_dissector_key_ipv6_addrs *key = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, f->key); struct flow_dissector_key_ipv6_addrs *mask = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, f->mask); memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, src_ipv4_src_ipv6.ipv6_layout.ipv6), &mask->src, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, src_ipv4_src_ipv6.ipv6_layout.ipv6), &key->src, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, dst_ipv4_dst_ipv6.ipv6_layout.ipv6), &mask->dst, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, dst_ipv4_dst_ipv6.ipv6_layout.ipv6), &key->dst, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, ethertype); MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, ETH_P_IPV6); } if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_IP)) { struct flow_dissector_key_ip *key = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_ENC_IP, f->key); struct flow_dissector_key_ip *mask = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_ENC_IP, f->mask); MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_ecn, mask->tos & 0x3); MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_ecn, key->tos & 0x3); MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_dscp, mask->tos >> 2); MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_dscp, key->tos >> 2); MLX5_SET(fte_match_set_lyr_2_4, headers_c, ttl_hoplimit, mask->ttl); MLX5_SET(fte_match_set_lyr_2_4, headers_v, ttl_hoplimit, key->ttl); if (mask->ttl && !MLX5_CAP_ESW_FLOWTABLE_FDB (priv->mdev, ft_field_support.outer_ipv4_ttl)) { NL_SET_ERR_MSG_MOD(extack, "Matching on TTL is not supported"); return -EOPNOTSUPP; } } /* Enforce DMAC when offloading incoming tunneled flows. * Flow counters require a match on the DMAC. */ MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, dmac_47_16); MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, dmac_15_0); ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, dmac_47_16), priv->netdev->dev_addr); /* let software handle IP fragments */ MLX5_SET(fte_match_set_lyr_2_4, headers_c, frag, 1); MLX5_SET(fte_match_set_lyr_2_4, headers_v, frag, 0); return 0; } static int __parse_cls_flower(struct mlx5e_priv *priv, struct mlx5_flow_spec *spec, struct tc_cls_flower_offload *f, struct net_device *filter_dev, u8 *match_level, u8 *tunnel_match_level) { struct netlink_ext_ack *extack = f->common.extack; void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, outer_headers); void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, outer_headers); void *misc_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters); void *misc_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters); u16 addr_type = 0; u8 ip_proto = 0; *match_level = MLX5_MATCH_NONE; if (f->dissector->used_keys & ~(BIT(FLOW_DISSECTOR_KEY_CONTROL) | BIT(FLOW_DISSECTOR_KEY_BASIC) | BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) | BIT(FLOW_DISSECTOR_KEY_VLAN) | BIT(FLOW_DISSECTOR_KEY_CVLAN) | BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) | BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) | BIT(FLOW_DISSECTOR_KEY_PORTS) | BIT(FLOW_DISSECTOR_KEY_ENC_KEYID) | BIT(FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS) | BIT(FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS) | BIT(FLOW_DISSECTOR_KEY_ENC_PORTS) | BIT(FLOW_DISSECTOR_KEY_ENC_CONTROL) | BIT(FLOW_DISSECTOR_KEY_TCP) | BIT(FLOW_DISSECTOR_KEY_IP) | BIT(FLOW_DISSECTOR_KEY_ENC_IP))) { NL_SET_ERR_MSG_MOD(extack, "Unsupported key"); netdev_warn(priv->netdev, "Unsupported key used: 0x%x\n", f->dissector->used_keys); return -EOPNOTSUPP; } if ((dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS) || dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_KEYID) || dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_PORTS)) && dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_CONTROL)) { struct flow_dissector_key_control *key = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_ENC_CONTROL, f->key); switch (key->addr_type) { case FLOW_DISSECTOR_KEY_IPV4_ADDRS: case FLOW_DISSECTOR_KEY_IPV6_ADDRS: if (parse_tunnel_attr(priv, spec, f, filter_dev, tunnel_match_level)) return -EOPNOTSUPP; break; default: return -EOPNOTSUPP; } /* In decap flow, header pointers should point to the inner * headers, outer header were already set by parse_tunnel_attr */ headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, inner_headers); headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, inner_headers); } if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_BASIC)) { struct flow_dissector_key_basic *key = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_BASIC, f->key); struct flow_dissector_key_basic *mask = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_BASIC, f->mask); MLX5_SET(fte_match_set_lyr_2_4, headers_c, ethertype, ntohs(mask->n_proto)); MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, ntohs(key->n_proto)); if (mask->n_proto) *match_level = MLX5_MATCH_L2; } if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_VLAN)) { struct flow_dissector_key_vlan *key = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_VLAN, f->key); struct flow_dissector_key_vlan *mask = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_VLAN, f->mask); if (mask->vlan_id || mask->vlan_priority || mask->vlan_tpid) { if (key->vlan_tpid == htons(ETH_P_8021AD)) { MLX5_SET(fte_match_set_lyr_2_4, headers_c, svlan_tag, 1); MLX5_SET(fte_match_set_lyr_2_4, headers_v, svlan_tag, 1); } else { MLX5_SET(fte_match_set_lyr_2_4, headers_c, cvlan_tag, 1); MLX5_SET(fte_match_set_lyr_2_4, headers_v, cvlan_tag, 1); } MLX5_SET(fte_match_set_lyr_2_4, headers_c, first_vid, mask->vlan_id); MLX5_SET(fte_match_set_lyr_2_4, headers_v, first_vid, key->vlan_id); MLX5_SET(fte_match_set_lyr_2_4, headers_c, first_prio, mask->vlan_priority); MLX5_SET(fte_match_set_lyr_2_4, headers_v, first_prio, key->vlan_priority); *match_level = MLX5_MATCH_L2; } } else if (*match_level != MLX5_MATCH_NONE) { MLX5_SET(fte_match_set_lyr_2_4, headers_c, svlan_tag, 1); MLX5_SET(fte_match_set_lyr_2_4, headers_c, cvlan_tag, 1); *match_level = MLX5_MATCH_L2; } if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_CVLAN)) { struct flow_dissector_key_vlan *key = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_CVLAN, f->key); struct flow_dissector_key_vlan *mask = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_CVLAN, f->mask); if (mask->vlan_id || mask->vlan_priority || mask->vlan_tpid) { if (key->vlan_tpid == htons(ETH_P_8021AD)) { MLX5_SET(fte_match_set_misc, misc_c, outer_second_svlan_tag, 1); MLX5_SET(fte_match_set_misc, misc_v, outer_second_svlan_tag, 1); } else { MLX5_SET(fte_match_set_misc, misc_c, outer_second_cvlan_tag, 1); MLX5_SET(fte_match_set_misc, misc_v, outer_second_cvlan_tag, 1); } MLX5_SET(fte_match_set_misc, misc_c, outer_second_vid, mask->vlan_id); MLX5_SET(fte_match_set_misc, misc_v, outer_second_vid, key->vlan_id); MLX5_SET(fte_match_set_misc, misc_c, outer_second_prio, mask->vlan_priority); MLX5_SET(fte_match_set_misc, misc_v, outer_second_prio, key->vlan_priority); *match_level = MLX5_MATCH_L2; } } if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ETH_ADDRS)) { struct flow_dissector_key_eth_addrs *key = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_ETH_ADDRS, f->key); struct flow_dissector_key_eth_addrs *mask = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_ETH_ADDRS, f->mask); ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, dmac_47_16), mask->dst); ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, dmac_47_16), key->dst); ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, smac_47_16), mask->src); ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, smac_47_16), key->src); if (!is_zero_ether_addr(mask->src) || !is_zero_ether_addr(mask->dst)) *match_level = MLX5_MATCH_L2; } if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_CONTROL)) { struct flow_dissector_key_control *key = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_CONTROL, f->key); struct flow_dissector_key_control *mask = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_CONTROL, f->mask); addr_type = key->addr_type; /* the HW doesn't support frag first/later */ if (mask->flags & FLOW_DIS_FIRST_FRAG) return -EOPNOTSUPP; if (mask->flags & FLOW_DIS_IS_FRAGMENT) { MLX5_SET(fte_match_set_lyr_2_4, headers_c, frag, 1); MLX5_SET(fte_match_set_lyr_2_4, headers_v, frag, key->flags & FLOW_DIS_IS_FRAGMENT); /* the HW doesn't need L3 inline to match on frag=no */ if (!(key->flags & FLOW_DIS_IS_FRAGMENT)) *match_level = MLX5_MATCH_L2; /* *** L2 attributes parsing up to here *** */ else *match_level = MLX5_MATCH_L3; } } if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_BASIC)) { struct flow_dissector_key_basic *key = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_BASIC, f->key); struct flow_dissector_key_basic *mask = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_BASIC, f->mask); ip_proto = key->ip_proto; MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_protocol, mask->ip_proto); MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, key->ip_proto); if (mask->ip_proto) *match_level = MLX5_MATCH_L3; } if (addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) { struct flow_dissector_key_ipv4_addrs *key = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_IPV4_ADDRS, f->key); struct flow_dissector_key_ipv4_addrs *mask = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_IPV4_ADDRS, f->mask); memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, src_ipv4_src_ipv6.ipv4_layout.ipv4), &mask->src, sizeof(mask->src)); memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, src_ipv4_src_ipv6.ipv4_layout.ipv4), &key->src, sizeof(key->src)); memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, dst_ipv4_dst_ipv6.ipv4_layout.ipv4), &mask->dst, sizeof(mask->dst)); memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, dst_ipv4_dst_ipv6.ipv4_layout.ipv4), &key->dst, sizeof(key->dst)); if (mask->src || mask->dst) *match_level = MLX5_MATCH_L3; } if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) { struct flow_dissector_key_ipv6_addrs *key = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_IPV6_ADDRS, f->key); struct flow_dissector_key_ipv6_addrs *mask = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_IPV6_ADDRS, f->mask); memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, src_ipv4_src_ipv6.ipv6_layout.ipv6), &mask->src, sizeof(mask->src)); memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, src_ipv4_src_ipv6.ipv6_layout.ipv6), &key->src, sizeof(key->src)); memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, dst_ipv4_dst_ipv6.ipv6_layout.ipv6), &mask->dst, sizeof(mask->dst)); memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, dst_ipv4_dst_ipv6.ipv6_layout.ipv6), &key->dst, sizeof(key->dst)); if (ipv6_addr_type(&mask->src) != IPV6_ADDR_ANY || ipv6_addr_type(&mask->dst) != IPV6_ADDR_ANY) *match_level = MLX5_MATCH_L3; } if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_IP)) { struct flow_dissector_key_ip *key = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_IP, f->key); struct flow_dissector_key_ip *mask = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_IP, f->mask); MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_ecn, mask->tos & 0x3); MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_ecn, key->tos & 0x3); MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_dscp, mask->tos >> 2); MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_dscp, key->tos >> 2); MLX5_SET(fte_match_set_lyr_2_4, headers_c, ttl_hoplimit, mask->ttl); MLX5_SET(fte_match_set_lyr_2_4, headers_v, ttl_hoplimit, key->ttl); if (mask->ttl && !MLX5_CAP_ESW_FLOWTABLE_FDB(priv->mdev, ft_field_support.outer_ipv4_ttl)) { NL_SET_ERR_MSG_MOD(extack, "Matching on TTL is not supported"); return -EOPNOTSUPP; } if (mask->tos || mask->ttl) *match_level = MLX5_MATCH_L3; } /* *** L3 attributes parsing up to here *** */ if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_PORTS)) { struct flow_dissector_key_ports *key = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_PORTS, f->key); struct flow_dissector_key_ports *mask = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_PORTS, f->mask); switch (ip_proto) { case IPPROTO_TCP: MLX5_SET(fte_match_set_lyr_2_4, headers_c, tcp_sport, ntohs(mask->src)); MLX5_SET(fte_match_set_lyr_2_4, headers_v, tcp_sport, ntohs(key->src)); MLX5_SET(fte_match_set_lyr_2_4, headers_c, tcp_dport, ntohs(mask->dst)); MLX5_SET(fte_match_set_lyr_2_4, headers_v, tcp_dport, ntohs(key->dst)); break; case IPPROTO_UDP: MLX5_SET(fte_match_set_lyr_2_4, headers_c, udp_sport, ntohs(mask->src)); MLX5_SET(fte_match_set_lyr_2_4, headers_v, udp_sport, ntohs(key->src)); MLX5_SET(fte_match_set_lyr_2_4, headers_c, udp_dport, ntohs(mask->dst)); MLX5_SET(fte_match_set_lyr_2_4, headers_v, udp_dport, ntohs(key->dst)); break; default: NL_SET_ERR_MSG_MOD(extack, "Only UDP and TCP transports are supported for L4 matching"); netdev_err(priv->netdev, "Only UDP and TCP transport are supported\n"); return -EINVAL; } if (mask->src || mask->dst) *match_level = MLX5_MATCH_L4; } if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_TCP)) { struct flow_dissector_key_tcp *key = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_TCP, f->key); struct flow_dissector_key_tcp *mask = skb_flow_dissector_target(f->dissector, FLOW_DISSECTOR_KEY_TCP, f->mask); MLX5_SET(fte_match_set_lyr_2_4, headers_c, tcp_flags, ntohs(mask->flags)); MLX5_SET(fte_match_set_lyr_2_4, headers_v, tcp_flags, ntohs(key->flags)); if (mask->flags) *match_level = MLX5_MATCH_L4; } return 0; } static int parse_cls_flower(struct mlx5e_priv *priv, struct mlx5e_tc_flow *flow, struct mlx5_flow_spec *spec, struct tc_cls_flower_offload *f, struct net_device *filter_dev) { struct netlink_ext_ack *extack = f->common.extack; struct mlx5_core_dev *dev = priv->mdev; struct mlx5_eswitch *esw = dev->priv.eswitch; struct mlx5e_rep_priv *rpriv = priv->ppriv; u8 match_level, tunnel_match_level = MLX5_MATCH_NONE; struct mlx5_eswitch_rep *rep; int err; err = __parse_cls_flower(priv, spec, f, filter_dev, &match_level, &tunnel_match_level); if (!err && (flow->flags & MLX5E_TC_FLOW_ESWITCH)) { rep = rpriv->rep; if (rep->vport != FDB_UPLINK_VPORT && (esw->offloads.inline_mode != MLX5_INLINE_MODE_NONE && esw->offloads.inline_mode < match_level)) { NL_SET_ERR_MSG_MOD(extack, "Flow is not offloaded due to min inline setting"); netdev_warn(priv->netdev, "Flow is not offloaded due to min inline setting, required %d actual %d\n", match_level, esw->offloads.inline_mode); return -EOPNOTSUPP; } } if (flow->flags & MLX5E_TC_FLOW_ESWITCH) { flow->esw_attr->match_level = match_level; flow->esw_attr->tunnel_match_level = tunnel_match_level; } else { flow->nic_attr->match_level = match_level; } return err; } struct pedit_headers { struct ethhdr eth; struct iphdr ip4; struct ipv6hdr ip6; struct tcphdr tcp; struct udphdr udp; }; static int pedit_header_offsets[] = { [TCA_PEDIT_KEY_EX_HDR_TYPE_ETH] = offsetof(struct pedit_headers, eth), [TCA_PEDIT_KEY_EX_HDR_TYPE_IP4] = offsetof(struct pedit_headers, ip4), [TCA_PEDIT_KEY_EX_HDR_TYPE_IP6] = offsetof(struct pedit_headers, ip6), [TCA_PEDIT_KEY_EX_HDR_TYPE_TCP] = offsetof(struct pedit_headers, tcp), [TCA_PEDIT_KEY_EX_HDR_TYPE_UDP] = offsetof(struct pedit_headers, udp), }; #define pedit_header(_ph, _htype) ((void *)(_ph) + pedit_header_offsets[_htype]) static int set_pedit_val(u8 hdr_type, u32 mask, u32 val, u32 offset, struct pedit_headers *masks, struct pedit_headers *vals) { u32 *curr_pmask, *curr_pval; if (hdr_type >= __PEDIT_HDR_TYPE_MAX) goto out_err; curr_pmask = (u32 *)(pedit_header(masks, hdr_type) + offset); curr_pval = (u32 *)(pedit_header(vals, hdr_type) + offset); if (*curr_pmask & mask) /* disallow acting twice on the same location */ goto out_err; *curr_pmask |= mask; *curr_pval |= (val & mask); return 0; out_err: return -EOPNOTSUPP; } struct mlx5_fields { u8 field; u8 size; u32 offset; }; #define OFFLOAD(fw_field, size, field, off) \ {MLX5_ACTION_IN_FIELD_OUT_ ## fw_field, size, offsetof(struct pedit_headers, field) + (off)} static struct mlx5_fields fields[] = { OFFLOAD(DMAC_47_16, 4, eth.h_dest[0], 0), OFFLOAD(DMAC_15_0, 2, eth.h_dest[4], 0), OFFLOAD(SMAC_47_16, 4, eth.h_source[0], 0), OFFLOAD(SMAC_15_0, 2, eth.h_source[4], 0), OFFLOAD(ETHERTYPE, 2, eth.h_proto, 0), OFFLOAD(IP_TTL, 1, ip4.ttl, 0), OFFLOAD(SIPV4, 4, ip4.saddr, 0), OFFLOAD(DIPV4, 4, ip4.daddr, 0), OFFLOAD(SIPV6_127_96, 4, ip6.saddr.s6_addr32[0], 0), OFFLOAD(SIPV6_95_64, 4, ip6.saddr.s6_addr32[1], 0), OFFLOAD(SIPV6_63_32, 4, ip6.saddr.s6_addr32[2], 0), OFFLOAD(SIPV6_31_0, 4, ip6.saddr.s6_addr32[3], 0), OFFLOAD(DIPV6_127_96, 4, ip6.daddr.s6_addr32[0], 0), OFFLOAD(DIPV6_95_64, 4, ip6.daddr.s6_addr32[1], 0), OFFLOAD(DIPV6_63_32, 4, ip6.daddr.s6_addr32[2], 0), OFFLOAD(DIPV6_31_0, 4, ip6.daddr.s6_addr32[3], 0), OFFLOAD(IPV6_HOPLIMIT, 1, ip6.hop_limit, 0), OFFLOAD(TCP_SPORT, 2, tcp.source, 0), OFFLOAD(TCP_DPORT, 2, tcp.dest, 0), OFFLOAD(TCP_FLAGS, 1, tcp.ack_seq, 5), OFFLOAD(UDP_SPORT, 2, udp.source, 0), OFFLOAD(UDP_DPORT, 2, udp.dest, 0), }; /* On input attr->max_mod_hdr_actions tells how many HW actions can be parsed at * max from the SW pedit action. On success, attr->num_mod_hdr_actions * says how many HW actions were actually parsed. */ static int offload_pedit_fields(struct pedit_headers *masks, struct pedit_headers *vals, struct mlx5e_tc_flow_parse_attr *parse_attr, struct netlink_ext_ack *extack) { struct pedit_headers *set_masks, *add_masks, *set_vals, *add_vals; int i, action_size, nactions, max_actions, first, last, next_z; void *s_masks_p, *a_masks_p, *vals_p; struct mlx5_fields *f; u8 cmd, field_bsize; u32 s_mask, a_mask; unsigned long mask; __be32 mask_be32; __be16 mask_be16; void *action; set_masks = &masks[TCA_PEDIT_KEY_EX_CMD_SET]; add_masks = &masks[TCA_PEDIT_KEY_EX_CMD_ADD]; set_vals = &vals[TCA_PEDIT_KEY_EX_CMD_SET]; add_vals = &vals[TCA_PEDIT_KEY_EX_CMD_ADD]; action_size = MLX5_UN_SZ_BYTES(set_action_in_add_action_in_auto); action = parse_attr->mod_hdr_actions + parse_attr->num_mod_hdr_actions * action_size; max_actions = parse_attr->max_mod_hdr_actions; nactions = parse_attr->num_mod_hdr_actions; for (i = 0; i < ARRAY_SIZE(fields); i++) { f = &fields[i]; /* avoid seeing bits set from previous iterations */ s_mask = 0; a_mask = 0; s_masks_p = (void *)set_masks + f->offset; a_masks_p = (void *)add_masks + f->offset; memcpy(&s_mask, s_masks_p, f->size); memcpy(&a_mask, a_masks_p, f->size); if (!s_mask && !a_mask) /* nothing to offload here */ continue; if (s_mask && a_mask) { NL_SET_ERR_MSG_MOD(extack, "can't set and add to the same HW field"); printk(KERN_WARNING "mlx5: can't set and add to the same HW field (%x)\n", f->field); return -EOPNOTSUPP; } if (nactions == max_actions) { NL_SET_ERR_MSG_MOD(extack, "too many pedit actions, can't offload"); printk(KERN_WARNING "mlx5: parsed %d pedit actions, can't do more\n", nactions); return -EOPNOTSUPP; } if (s_mask) { cmd = MLX5_ACTION_TYPE_SET; mask = s_mask; vals_p = (void *)set_vals + f->offset; /* clear to denote we consumed this field */ memset(s_masks_p, 0, f->size); } else { cmd = MLX5_ACTION_TYPE_ADD; mask = a_mask; vals_p = (void *)add_vals + f->offset; /* clear to denote we consumed this field */ memset(a_masks_p, 0, f->size); } field_bsize = f->size * BITS_PER_BYTE; if (field_bsize == 32) { mask_be32 = *(__be32 *)&mask; mask = (__force unsigned long)cpu_to_le32(be32_to_cpu(mask_be32)); } else if (field_bsize == 16) { mask_be16 = *(__be16 *)&mask; mask = (__force unsigned long)cpu_to_le16(be16_to_cpu(mask_be16)); } first = find_first_bit(&mask, field_bsize); next_z = find_next_zero_bit(&mask, field_bsize, first); last = find_last_bit(&mask, field_bsize); if (first < next_z && next_z < last) { NL_SET_ERR_MSG_MOD(extack, "rewrite of few sub-fields isn't supported"); printk(KERN_WARNING "mlx5: rewrite of few sub-fields (mask %lx) isn't offloaded\n", mask); return -EOPNOTSUPP; } MLX5_SET(set_action_in, action, action_type, cmd); MLX5_SET(set_action_in, action, field, f->field); if (cmd == MLX5_ACTION_TYPE_SET) { MLX5_SET(set_action_in, action, offset, first); /* length is num of bits to be written, zero means length of 32 */ MLX5_SET(set_action_in, action, length, (last - first + 1)); } if (field_bsize == 32) MLX5_SET(set_action_in, action, data, ntohl(*(__be32 *)vals_p) >> first); else if (field_bsize == 16) MLX5_SET(set_action_in, action, data, ntohs(*(__be16 *)vals_p) >> first); else if (field_bsize == 8) MLX5_SET(set_action_in, action, data, *(u8 *)vals_p >> first); action += action_size; nactions++; } parse_attr->num_mod_hdr_actions = nactions; return 0; } static int alloc_mod_hdr_actions(struct mlx5e_priv *priv, const struct tc_action *a, int namespace, struct mlx5e_tc_flow_parse_attr *parse_attr) { int nkeys, action_size, max_actions; nkeys = tcf_pedit_nkeys(a); action_size = MLX5_UN_SZ_BYTES(set_action_in_add_action_in_auto); if (namespace == MLX5_FLOW_NAMESPACE_FDB) /* FDB offloading */ max_actions = MLX5_CAP_ESW_FLOWTABLE_FDB(priv->mdev, max_modify_header_actions); else /* namespace is MLX5_FLOW_NAMESPACE_KERNEL - NIC offloading */ max_actions = MLX5_CAP_FLOWTABLE_NIC_RX(priv->mdev, max_modify_header_actions); /* can get up to crazingly 16 HW actions in 32 bits pedit SW key */ max_actions = min(max_actions, nkeys * 16); parse_attr->mod_hdr_actions = kcalloc(max_actions, action_size, GFP_KERNEL); if (!parse_attr->mod_hdr_actions) return -ENOMEM; parse_attr->max_mod_hdr_actions = max_actions; return 0; } static const struct pedit_headers zero_masks = {}; static int parse_tc_pedit_action(struct mlx5e_priv *priv, const struct tc_action *a, int namespace, struct mlx5e_tc_flow_parse_attr *parse_attr, struct netlink_ext_ack *extack) { struct pedit_headers masks[__PEDIT_CMD_MAX], vals[__PEDIT_CMD_MAX], *cmd_masks; int nkeys, i, err = -EOPNOTSUPP; u32 mask, val, offset; u8 cmd, htype; nkeys = tcf_pedit_nkeys(a); memset(masks, 0, sizeof(struct pedit_headers) * __PEDIT_CMD_MAX); memset(vals, 0, sizeof(struct pedit_headers) * __PEDIT_CMD_MAX); for (i = 0; i < nkeys; i++) { htype = tcf_pedit_htype(a, i); cmd = tcf_pedit_cmd(a, i); err = -EOPNOTSUPP; /* can't be all optimistic */ if (htype == TCA_PEDIT_KEY_EX_HDR_TYPE_NETWORK) { NL_SET_ERR_MSG_MOD(extack, "legacy pedit isn't offloaded"); goto out_err; } if (cmd != TCA_PEDIT_KEY_EX_CMD_SET && cmd != TCA_PEDIT_KEY_EX_CMD_ADD) { NL_SET_ERR_MSG_MOD(extack, "pedit cmd isn't offloaded"); goto out_err; } mask = tcf_pedit_mask(a, i); val = tcf_pedit_val(a, i); offset = tcf_pedit_offset(a, i); err = set_pedit_val(htype, ~mask, val, offset, &masks[cmd], &vals[cmd]); if (err) goto out_err; } if (!parse_attr->mod_hdr_actions) { err = alloc_mod_hdr_actions(priv, a, namespace, parse_attr); if (err) goto out_err; } err = offload_pedit_fields(masks, vals, parse_attr, extack); if (err < 0) goto out_dealloc_parsed_actions; for (cmd = 0; cmd < __PEDIT_CMD_MAX; cmd++) { cmd_masks = &masks[cmd]; if (memcmp(cmd_masks, &zero_masks, sizeof(zero_masks))) { NL_SET_ERR_MSG_MOD(extack, "attempt to offload an unsupported field"); netdev_warn(priv->netdev, "attempt to offload an unsupported field (cmd %d)\n", cmd); print_hex_dump(KERN_WARNING, "mask: ", DUMP_PREFIX_ADDRESS, 16, 1, cmd_masks, sizeof(zero_masks), true); err = -EOPNOTSUPP; goto out_dealloc_parsed_actions; } } return 0; out_dealloc_parsed_actions: kfree(parse_attr->mod_hdr_actions); out_err: return err; } static bool csum_offload_supported(struct mlx5e_priv *priv, u32 action, u32 update_flags, struct netlink_ext_ack *extack) { u32 prot_flags = TCA_CSUM_UPDATE_FLAG_IPV4HDR | TCA_CSUM_UPDATE_FLAG_TCP | TCA_CSUM_UPDATE_FLAG_UDP; /* The HW recalcs checksums only if re-writing headers */ if (!(action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR)) { NL_SET_ERR_MSG_MOD(extack, "TC csum action is only offloaded with pedit"); netdev_warn(priv->netdev, "TC csum action is only offloaded with pedit\n"); return false; } if (update_flags & ~prot_flags) { NL_SET_ERR_MSG_MOD(extack, "can't offload TC csum action for some header/s"); netdev_warn(priv->netdev, "can't offload TC csum action for some header/s - flags %#x\n", update_flags); return false; } return true; } static bool modify_header_match_supported(struct mlx5_flow_spec *spec, struct tcf_exts *exts, u32 actions, struct netlink_ext_ack *extack) { const struct tc_action *a; bool modify_ip_header; u8 htype, ip_proto; void *headers_v; u16 ethertype; int nkeys, i; if (actions & MLX5_FLOW_CONTEXT_ACTION_DECAP) headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, inner_headers); else headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, outer_headers); ethertype = MLX5_GET(fte_match_set_lyr_2_4, headers_v, ethertype); /* for non-IP we only re-write MACs, so we're okay */ if (ethertype != ETH_P_IP && ethertype != ETH_P_IPV6) goto out_ok; modify_ip_header = false; tcf_exts_for_each_action(i, a, exts) { int k; if (!is_tcf_pedit(a)) continue; nkeys = tcf_pedit_nkeys(a); for (k = 0; k < nkeys; k++) { htype = tcf_pedit_htype(a, k); if (htype == TCA_PEDIT_KEY_EX_HDR_TYPE_IP4 || htype == TCA_PEDIT_KEY_EX_HDR_TYPE_IP6) { modify_ip_header = true; break; } } } ip_proto = MLX5_GET(fte_match_set_lyr_2_4, headers_v, ip_protocol); if (modify_ip_header && ip_proto != IPPROTO_TCP && ip_proto != IPPROTO_UDP && ip_proto != IPPROTO_ICMP) { NL_SET_ERR_MSG_MOD(extack, "can't offload re-write of non TCP/UDP"); pr_info("can't offload re-write of ip proto %d\n", ip_proto); return false; } out_ok: return true; } static bool actions_match_supported(struct mlx5e_priv *priv, struct tcf_exts *exts, struct mlx5e_tc_flow_parse_attr *parse_attr, struct mlx5e_tc_flow *flow, struct netlink_ext_ack *extack) { u32 actions; if (flow->flags & MLX5E_TC_FLOW_ESWITCH) actions = flow->esw_attr->action; else actions = flow->nic_attr->action; if (flow->flags & MLX5E_TC_FLOW_EGRESS && !(actions & MLX5_FLOW_CONTEXT_ACTION_DECAP)) return false; if (actions & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) return modify_header_match_supported(&parse_attr->spec, exts, actions, extack); return true; } static bool same_hw_devs(struct mlx5e_priv *priv, struct mlx5e_priv *peer_priv) { struct mlx5_core_dev *fmdev, *pmdev; u64 fsystem_guid, psystem_guid; fmdev = priv->mdev; pmdev = peer_priv->mdev; fsystem_guid = mlx5_query_nic_system_image_guid(fmdev); psystem_guid = mlx5_query_nic_system_image_guid(pmdev); return (fsystem_guid == psystem_guid); } static int parse_tc_nic_actions(struct mlx5e_priv *priv, struct tcf_exts *exts, struct mlx5e_tc_flow_parse_attr *parse_attr, struct mlx5e_tc_flow *flow, struct netlink_ext_ack *extack) { struct mlx5_nic_flow_attr *attr = flow->nic_attr; const struct tc_action *a; u32 action = 0; int err, i; if (!tcf_exts_has_actions(exts)) return -EINVAL; attr->flow_tag = MLX5_FS_DEFAULT_FLOW_TAG; tcf_exts_for_each_action(i, a, exts) { if (is_tcf_gact_shot(a)) { action |= MLX5_FLOW_CONTEXT_ACTION_DROP; if (MLX5_CAP_FLOWTABLE(priv->mdev, flow_table_properties_nic_receive.flow_counter)) action |= MLX5_FLOW_CONTEXT_ACTION_COUNT; continue; } if (is_tcf_pedit(a)) { err = parse_tc_pedit_action(priv, a, MLX5_FLOW_NAMESPACE_KERNEL, parse_attr, extack); if (err) return err; action |= MLX5_FLOW_CONTEXT_ACTION_MOD_HDR | MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; continue; } if (is_tcf_csum(a)) { if (csum_offload_supported(priv, action, tcf_csum_update_flags(a), extack)) continue; return -EOPNOTSUPP; } if (is_tcf_mirred_egress_redirect(a)) { struct net_device *peer_dev = tcf_mirred_dev(a); if (priv->netdev->netdev_ops == peer_dev->netdev_ops && same_hw_devs(priv, netdev_priv(peer_dev))) { parse_attr->mirred_ifindex[0] = peer_dev->ifindex; flow->flags |= MLX5E_TC_FLOW_HAIRPIN; action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST | MLX5_FLOW_CONTEXT_ACTION_COUNT; } else { NL_SET_ERR_MSG_MOD(extack, "device is not on same HW, can't offload"); netdev_warn(priv->netdev, "device %s not on same HW, can't offload\n", peer_dev->name); return -EINVAL; } continue; } if (is_tcf_skbedit_mark(a)) { u32 mark = tcf_skbedit_mark(a); if (mark & ~MLX5E_TC_FLOW_ID_MASK) { NL_SET_ERR_MSG_MOD(extack, "Bad flow mark - only 16 bit is supported"); return -EINVAL; } attr->flow_tag = mark; action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; continue; } return -EINVAL; } attr->action = action; if (!actions_match_supported(priv, exts, parse_attr, flow, extack)) return -EOPNOTSUPP; return 0; } static inline int cmp_encap_info(struct ip_tunnel_key *a, struct ip_tunnel_key *b) { return memcmp(a, b, sizeof(*a)); } static inline int hash_encap_info(struct ip_tunnel_key *key) { return jhash(key, sizeof(*key), 0); } static bool is_merged_eswitch_dev(struct mlx5e_priv *priv, struct net_device *peer_netdev) { struct mlx5e_priv *peer_priv; peer_priv = netdev_priv(peer_netdev); return (MLX5_CAP_ESW(priv->mdev, merged_eswitch) && (priv->netdev->netdev_ops == peer_netdev->netdev_ops) && same_hw_devs(priv, peer_priv) && MLX5_VPORT_MANAGER(peer_priv->mdev) && (peer_priv->mdev->priv.eswitch->mode == SRIOV_OFFLOADS)); } static int mlx5e_attach_encap(struct mlx5e_priv *priv, struct ip_tunnel_info *tun_info, struct net_device *mirred_dev, struct net_device **encap_dev, struct mlx5e_tc_flow *flow, struct netlink_ext_ack *extack, int out_index) { struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; unsigned short family = ip_tunnel_info_af(tun_info); struct mlx5_esw_flow_attr *attr = flow->esw_attr; struct ip_tunnel_key *key = &tun_info->key; struct mlx5e_encap_entry *e; uintptr_t hash_key; bool found = false; int err = 0; hash_key = hash_encap_info(key); hash_for_each_possible_rcu(esw->offloads.encap_tbl, e, encap_hlist, hash_key) { if (!cmp_encap_info(&e->tun_info.key, key)) { found = true; break; } } /* must verify if encap is valid or not */ if (found) goto attach_flow; e = kzalloc(sizeof(*e), GFP_KERNEL); if (!e) return -ENOMEM; e->tun_info = *tun_info; err = mlx5e_tc_tun_init_encap_attr(mirred_dev, priv, e, extack); if (err) goto out_err; INIT_LIST_HEAD(&e->flows); if (family == AF_INET) err = mlx5e_tc_tun_create_header_ipv4(priv, mirred_dev, e); else if (family == AF_INET6) err = mlx5e_tc_tun_create_header_ipv6(priv, mirred_dev, e); if (err && err != -EAGAIN) goto out_err; hash_add_rcu(esw->offloads.encap_tbl, &e->encap_hlist, hash_key); attach_flow: list_add(&flow->encaps[out_index].list, &e->flows); flow->encaps[out_index].index = out_index; *encap_dev = e->out_dev; if (e->flags & MLX5_ENCAP_ENTRY_VALID) { attr->dests[out_index].encap_id = e->encap_id; attr->dests[out_index].flags |= MLX5_ESW_DEST_ENCAP_VALID; } else { err = -EAGAIN; } return err; out_err: kfree(e); return err; } static int parse_tc_vlan_action(struct mlx5e_priv *priv, const struct tc_action *a, struct mlx5_esw_flow_attr *attr, u32 *action) { u8 vlan_idx = attr->total_vlan; if (vlan_idx >= MLX5_FS_VLAN_DEPTH) return -EOPNOTSUPP; if (tcf_vlan_action(a) == TCA_VLAN_ACT_POP) { if (vlan_idx) { if (!mlx5_eswitch_vlan_actions_supported(priv->mdev, MLX5_FS_VLAN_DEPTH)) return -EOPNOTSUPP; *action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_POP_2; } else { *action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_POP; } } else if (tcf_vlan_action(a) == TCA_VLAN_ACT_PUSH) { attr->vlan_vid[vlan_idx] = tcf_vlan_push_vid(a); attr->vlan_prio[vlan_idx] = tcf_vlan_push_prio(a); attr->vlan_proto[vlan_idx] = tcf_vlan_push_proto(a); if (!attr->vlan_proto[vlan_idx]) attr->vlan_proto[vlan_idx] = htons(ETH_P_8021Q); if (vlan_idx) { if (!mlx5_eswitch_vlan_actions_supported(priv->mdev, MLX5_FS_VLAN_DEPTH)) return -EOPNOTSUPP; *action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH_2; } else { if (!mlx5_eswitch_vlan_actions_supported(priv->mdev, 1) && (tcf_vlan_push_proto(a) != htons(ETH_P_8021Q) || tcf_vlan_push_prio(a))) return -EOPNOTSUPP; *action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH; } } else { /* action is TCA_VLAN_ACT_MODIFY */ return -EOPNOTSUPP; } attr->total_vlan = vlan_idx + 1; return 0; } static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts, struct mlx5e_tc_flow_parse_attr *parse_attr, struct mlx5e_tc_flow *flow, struct netlink_ext_ack *extack) { struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; struct mlx5_esw_flow_attr *attr = flow->esw_attr; struct mlx5e_rep_priv *rpriv = priv->ppriv; struct ip_tunnel_info *info = NULL; const struct tc_action *a; bool encap = false; u32 action = 0; int err, i; if (!tcf_exts_has_actions(exts)) return -EINVAL; attr->in_rep = rpriv->rep; attr->in_mdev = priv->mdev; tcf_exts_for_each_action(i, a, exts) { if (is_tcf_gact_shot(a)) { action |= MLX5_FLOW_CONTEXT_ACTION_DROP | MLX5_FLOW_CONTEXT_ACTION_COUNT; continue; } if (is_tcf_pedit(a)) { err = parse_tc_pedit_action(priv, a, MLX5_FLOW_NAMESPACE_FDB, parse_attr, extack); if (err) return err; action |= MLX5_FLOW_CONTEXT_ACTION_MOD_HDR; attr->split_count = attr->out_count; continue; } if (is_tcf_csum(a)) { if (csum_offload_supported(priv, action, tcf_csum_update_flags(a), extack)) continue; return -EOPNOTSUPP; } if (is_tcf_mirred_egress_redirect(a) || is_tcf_mirred_egress_mirror(a)) { struct mlx5e_priv *out_priv; struct net_device *out_dev; out_dev = tcf_mirred_dev(a); if (!out_dev) { /* out_dev is NULL when filters with * non-existing mirred device are replayed to * the driver. */ return -EINVAL; } if (attr->out_count >= MLX5_MAX_FLOW_FWD_VPORTS) { NL_SET_ERR_MSG_MOD(extack, "can't support more output ports, can't offload forwarding"); pr_err("can't support more than %d output ports, can't offload forwarding\n", attr->out_count); return -EOPNOTSUPP; } action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST | MLX5_FLOW_CONTEXT_ACTION_COUNT; if (switchdev_port_same_parent_id(priv->netdev, out_dev) || is_merged_eswitch_dev(priv, out_dev)) { struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; struct net_device *uplink_dev = mlx5_eswitch_uplink_get_proto_dev(esw, REP_ETH); struct net_device *uplink_upper = netdev_master_upper_dev_get(uplink_dev); if (uplink_upper && netif_is_lag_master(uplink_upper) && uplink_upper == out_dev) out_dev = uplink_dev; if (!mlx5e_eswitch_rep(out_dev)) return -EOPNOTSUPP; out_priv = netdev_priv(out_dev); rpriv = out_priv->ppriv; attr->dests[attr->out_count].rep = rpriv->rep; attr->dests[attr->out_count].mdev = out_priv->mdev; attr->out_count++; } else if (encap) { parse_attr->mirred_ifindex[attr->out_count] = out_dev->ifindex; parse_attr->tun_info[attr->out_count] = *info; encap = false; attr->parse_attr = parse_attr; attr->dests[attr->out_count].flags |= MLX5_ESW_DEST_ENCAP; attr->out_count++; /* attr->dests[].rep is resolved when we * handle encap */ } else if (parse_attr->filter_dev != priv->netdev) { /* All mlx5 devices are called to configure * high level device filters. Therefore, the * *attempt* to install a filter on invalid * eswitch should not trigger an explicit error */ return -EINVAL; } else { NL_SET_ERR_MSG_MOD(extack, "devices are not on same switch HW, can't offload forwarding"); pr_err("devices %s %s not on same switch HW, can't offload forwarding\n", priv->netdev->name, out_dev->name); return -EINVAL; } continue; } if (is_tcf_tunnel_set(a)) { info = tcf_tunnel_info(a); if (info) encap = true; else return -EOPNOTSUPP; continue; } if (is_tcf_vlan(a)) { err = parse_tc_vlan_action(priv, a, attr, &action); if (err) return err; attr->split_count = attr->out_count; continue; } if (is_tcf_tunnel_release(a)) { action |= MLX5_FLOW_CONTEXT_ACTION_DECAP; continue; } if (is_tcf_gact_goto_chain(a)) { u32 dest_chain = tcf_gact_goto_chain_index(a); u32 max_chain = mlx5_eswitch_get_chain_range(esw); if (dest_chain <= attr->chain) { NL_SET_ERR_MSG(extack, "Goto earlier chain isn't supported"); return -EOPNOTSUPP; } if (dest_chain > max_chain) { NL_SET_ERR_MSG(extack, "Requested destination chain is out of supported range"); return -EOPNOTSUPP; } action |= MLX5_FLOW_CONTEXT_ACTION_COUNT; attr->dest_chain = dest_chain; continue; } return -EINVAL; } attr->action = action; if (!actions_match_supported(priv, exts, parse_attr, flow, extack)) return -EOPNOTSUPP; if (attr->dest_chain) { if (attr->action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) { NL_SET_ERR_MSG(extack, "Mirroring goto chain rules isn't supported"); return -EOPNOTSUPP; } attr->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; } if (attr->split_count > 0 && !mlx5_esw_has_fwd_fdb(priv->mdev)) { NL_SET_ERR_MSG_MOD(extack, "current firmware doesn't support split rule for port mirroring"); netdev_warn_once(priv->netdev, "current firmware doesn't support split rule for port mirroring\n"); return -EOPNOTSUPP; } return 0; } static void get_flags(int flags, u16 *flow_flags) { u16 __flow_flags = 0; if (flags & MLX5E_TC_INGRESS) __flow_flags |= MLX5E_TC_FLOW_INGRESS; if (flags & MLX5E_TC_EGRESS) __flow_flags |= MLX5E_TC_FLOW_EGRESS; if (flags & MLX5E_TC_ESW_OFFLOAD) __flow_flags |= MLX5E_TC_FLOW_ESWITCH; if (flags & MLX5E_TC_NIC_OFFLOAD) __flow_flags |= MLX5E_TC_FLOW_NIC; *flow_flags = __flow_flags; } static const struct rhashtable_params tc_ht_params = { .head_offset = offsetof(struct mlx5e_tc_flow, node), .key_offset = offsetof(struct mlx5e_tc_flow, cookie), .key_len = sizeof(((struct mlx5e_tc_flow *)0)->cookie), .automatic_shrinking = true, }; static struct rhashtable *get_tc_ht(struct mlx5e_priv *priv, int flags) { struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; struct mlx5e_rep_priv *uplink_rpriv; if (flags & MLX5E_TC_ESW_OFFLOAD) { uplink_rpriv = mlx5_eswitch_get_uplink_priv(esw, REP_ETH); return &uplink_rpriv->uplink_priv.tc_ht; } else /* NIC offload */ return &priv->fs.tc.ht; } static bool is_peer_flow_needed(struct mlx5e_tc_flow *flow) { struct mlx5_esw_flow_attr *attr = flow->esw_attr; bool is_rep_ingress = attr->in_rep->vport != FDB_UPLINK_VPORT && flow->flags & MLX5E_TC_FLOW_INGRESS; bool act_is_encap = !!(attr->action & MLX5_FLOW_CONTEXT_ACTION_PACKET_REFORMAT); bool esw_paired = mlx5_devcom_is_paired(attr->in_mdev->priv.devcom, MLX5_DEVCOM_ESW_OFFLOADS); return esw_paired && mlx5_lag_is_sriov(attr->in_mdev) && (is_rep_ingress || act_is_encap); } static int mlx5e_alloc_flow(struct mlx5e_priv *priv, int attr_size, struct tc_cls_flower_offload *f, u16 flow_flags, struct mlx5e_tc_flow_parse_attr **__parse_attr, struct mlx5e_tc_flow **__flow) { struct mlx5e_tc_flow_parse_attr *parse_attr; struct mlx5e_tc_flow *flow; int err; flow = kzalloc(sizeof(*flow) + attr_size, GFP_KERNEL); parse_attr = kvzalloc(sizeof(*parse_attr), GFP_KERNEL); if (!parse_attr || !flow) { err = -ENOMEM; goto err_free; } flow->cookie = f->cookie; flow->flags = flow_flags; flow->priv = priv; *__flow = flow; *__parse_attr = parse_attr; return 0; err_free: kfree(flow); kvfree(parse_attr); return err; } static int __mlx5e_add_fdb_flow(struct mlx5e_priv *priv, struct tc_cls_flower_offload *f, u16 flow_flags, struct net_device *filter_dev, struct mlx5_eswitch_rep *in_rep, struct mlx5_core_dev *in_mdev, struct mlx5e_tc_flow **__flow) { struct netlink_ext_ack *extack = f->common.extack; struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; struct mlx5e_tc_flow_parse_attr *parse_attr; struct mlx5e_tc_flow *flow; int attr_size, err; flow_flags |= MLX5E_TC_FLOW_ESWITCH; attr_size = sizeof(struct mlx5_esw_flow_attr); err = mlx5e_alloc_flow(priv, attr_size, f, flow_flags, &parse_attr, &flow); if (err) goto out; parse_attr->filter_dev = filter_dev; flow->esw_attr->parse_attr = parse_attr; err = parse_cls_flower(flow->priv, flow, &parse_attr->spec, f, filter_dev); if (err) goto err_free; flow->esw_attr->chain = f->common.chain_index; flow->esw_attr->prio = TC_H_MAJ(f->common.prio) >> 16; err = parse_tc_fdb_actions(priv, f->exts, parse_attr, flow, extack); if (err) goto err_free; flow->esw_attr->in_rep = in_rep; flow->esw_attr->in_mdev = in_mdev; if (MLX5_CAP_ESW(esw->dev, counter_eswitch_affinity) == MLX5_COUNTER_SOURCE_ESWITCH) flow->esw_attr->counter_dev = in_mdev; else flow->esw_attr->counter_dev = priv->mdev; err = mlx5e_tc_add_fdb_flow(priv, parse_attr, flow, extack); if (err) goto err_free; *__flow = flow; return 0; err_free: kfree(flow); kvfree(parse_attr); out: return err; } static int mlx5e_tc_add_fdb_peer_flow(struct tc_cls_flower_offload *f, struct mlx5e_tc_flow *flow) { struct mlx5e_priv *priv = flow->priv, *peer_priv; struct mlx5_eswitch *esw = priv->mdev->priv.eswitch, *peer_esw; struct mlx5_devcom *devcom = priv->mdev->priv.devcom; struct mlx5e_tc_flow_parse_attr *parse_attr; struct mlx5e_rep_priv *peer_urpriv; struct mlx5e_tc_flow *peer_flow; struct mlx5_core_dev *in_mdev; int err = 0; peer_esw = mlx5_devcom_get_peer_data(devcom, MLX5_DEVCOM_ESW_OFFLOADS); if (!peer_esw) return -ENODEV; peer_urpriv = mlx5_eswitch_get_uplink_priv(peer_esw, REP_ETH); peer_priv = netdev_priv(peer_urpriv->netdev); /* in_mdev is assigned of which the packet originated from. * So packets redirected to uplink use the same mdev of the * original flow and packets redirected from uplink use the * peer mdev. */ if (flow->esw_attr->in_rep->vport == FDB_UPLINK_VPORT) in_mdev = peer_priv->mdev; else in_mdev = priv->mdev; parse_attr = flow->esw_attr->parse_attr; err = __mlx5e_add_fdb_flow(peer_priv, f, flow->flags, parse_attr->filter_dev, flow->esw_attr->in_rep, in_mdev, &peer_flow); if (err) goto out; flow->peer_flow = peer_flow; flow->flags |= MLX5E_TC_FLOW_DUP; mutex_lock(&esw->offloads.peer_mutex); list_add_tail(&flow->peer, &esw->offloads.peer_flows); mutex_unlock(&esw->offloads.peer_mutex); out: mlx5_devcom_release_peer_data(devcom, MLX5_DEVCOM_ESW_OFFLOADS); return err; } static int mlx5e_add_fdb_flow(struct mlx5e_priv *priv, struct tc_cls_flower_offload *f, u16 flow_flags, struct net_device *filter_dev, struct mlx5e_tc_flow **__flow) { struct mlx5e_rep_priv *rpriv = priv->ppriv; struct mlx5_eswitch_rep *in_rep = rpriv->rep; struct mlx5_core_dev *in_mdev = priv->mdev; struct mlx5e_tc_flow *flow; int err; err = __mlx5e_add_fdb_flow(priv, f, flow_flags, filter_dev, in_rep, in_mdev, &flow); if (err) goto out; if (is_peer_flow_needed(flow)) { err = mlx5e_tc_add_fdb_peer_flow(f, flow); if (err) { mlx5e_tc_del_fdb_flow(priv, flow); goto out; } } *__flow = flow; return 0; out: return err; } static int mlx5e_add_nic_flow(struct mlx5e_priv *priv, struct tc_cls_flower_offload *f, u16 flow_flags, struct net_device *filter_dev, struct mlx5e_tc_flow **__flow) { struct netlink_ext_ack *extack = f->common.extack; struct mlx5e_tc_flow_parse_attr *parse_attr; struct mlx5e_tc_flow *flow; int attr_size, err; /* multi-chain not supported for NIC rules */ if (!tc_cls_can_offload_and_chain0(priv->netdev, &f->common)) return -EOPNOTSUPP; flow_flags |= MLX5E_TC_FLOW_NIC; attr_size = sizeof(struct mlx5_nic_flow_attr); err = mlx5e_alloc_flow(priv, attr_size, f, flow_flags, &parse_attr, &flow); if (err) goto out; parse_attr->filter_dev = filter_dev; err = parse_cls_flower(flow->priv, flow, &parse_attr->spec, f, filter_dev); if (err) goto err_free; err = parse_tc_nic_actions(priv, f->exts, parse_attr, flow, extack); if (err) goto err_free; err = mlx5e_tc_add_nic_flow(priv, parse_attr, flow, extack); if (err) goto err_free; flow->flags |= MLX5E_TC_FLOW_OFFLOADED; kvfree(parse_attr); *__flow = flow; return 0; err_free: kfree(flow); kvfree(parse_attr); out: return err; } static int mlx5e_tc_add_flow(struct mlx5e_priv *priv, struct tc_cls_flower_offload *f, int flags, struct net_device *filter_dev, struct mlx5e_tc_flow **flow) { struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; u16 flow_flags; int err; get_flags(flags, &flow_flags); if (!tc_can_offload_extack(priv->netdev, f->common.extack)) return -EOPNOTSUPP; if (esw && esw->mode == SRIOV_OFFLOADS) err = mlx5e_add_fdb_flow(priv, f, flow_flags, filter_dev, flow); else err = mlx5e_add_nic_flow(priv, f, flow_flags, filter_dev, flow); return err; } int mlx5e_configure_flower(struct net_device *dev, struct mlx5e_priv *priv, struct tc_cls_flower_offload *f, int flags) { struct netlink_ext_ack *extack = f->common.extack; struct rhashtable *tc_ht = get_tc_ht(priv, flags); struct mlx5e_tc_flow *flow; int err = 0; flow = rhashtable_lookup_fast(tc_ht, &f->cookie, tc_ht_params); if (flow) { NL_SET_ERR_MSG_MOD(extack, "flow cookie already exists, ignoring"); netdev_warn_once(priv->netdev, "flow cookie %lx already exists, ignoring\n", f->cookie); goto out; } err = mlx5e_tc_add_flow(priv, f, flags, dev, &flow); if (err) goto out; err = rhashtable_insert_fast(tc_ht, &flow->node, tc_ht_params); if (err) goto err_free; return 0; err_free: mlx5e_tc_del_flow(priv, flow); kfree(flow); out: return err; } #define DIRECTION_MASK (MLX5E_TC_INGRESS | MLX5E_TC_EGRESS) #define FLOW_DIRECTION_MASK (MLX5E_TC_FLOW_INGRESS | MLX5E_TC_FLOW_EGRESS) static bool same_flow_direction(struct mlx5e_tc_flow *flow, int flags) { if ((flow->flags & FLOW_DIRECTION_MASK) == (flags & DIRECTION_MASK)) return true; return false; } int mlx5e_delete_flower(struct net_device *dev, struct mlx5e_priv *priv, struct tc_cls_flower_offload *f, int flags) { struct rhashtable *tc_ht = get_tc_ht(priv, flags); struct mlx5e_tc_flow *flow; flow = rhashtable_lookup_fast(tc_ht, &f->cookie, tc_ht_params); if (!flow || !same_flow_direction(flow, flags)) return -EINVAL; rhashtable_remove_fast(tc_ht, &flow->node, tc_ht_params); mlx5e_tc_del_flow(priv, flow); kfree(flow); return 0; } int mlx5e_stats_flower(struct net_device *dev, struct mlx5e_priv *priv, struct tc_cls_flower_offload *f, int flags) { struct mlx5_devcom *devcom = priv->mdev->priv.devcom; struct rhashtable *tc_ht = get_tc_ht(priv, flags); struct mlx5_eswitch *peer_esw; struct mlx5e_tc_flow *flow; struct mlx5_fc *counter; u64 bytes; u64 packets; u64 lastuse; flow = rhashtable_lookup_fast(tc_ht, &f->cookie, tc_ht_params); if (!flow || !same_flow_direction(flow, flags)) return -EINVAL; if (!(flow->flags & MLX5E_TC_FLOW_OFFLOADED)) return 0; counter = mlx5e_tc_get_counter(flow); if (!counter) return 0; mlx5_fc_query_cached(counter, &bytes, &packets, &lastuse); peer_esw = mlx5_devcom_get_peer_data(devcom, MLX5_DEVCOM_ESW_OFFLOADS); if (!peer_esw) goto out; if ((flow->flags & MLX5E_TC_FLOW_DUP) && (flow->peer_flow->flags & MLX5E_TC_FLOW_OFFLOADED)) { u64 bytes2; u64 packets2; u64 lastuse2; counter = mlx5e_tc_get_counter(flow->peer_flow); mlx5_fc_query_cached(counter, &bytes2, &packets2, &lastuse2); bytes += bytes2; packets += packets2; lastuse = max_t(u64, lastuse, lastuse2); } mlx5_devcom_release_peer_data(devcom, MLX5_DEVCOM_ESW_OFFLOADS); out: tcf_exts_stats_update(f->exts, bytes, packets, lastuse); return 0; } static void mlx5e_tc_hairpin_update_dead_peer(struct mlx5e_priv *priv, struct mlx5e_priv *peer_priv) { struct mlx5_core_dev *peer_mdev = peer_priv->mdev; struct mlx5e_hairpin_entry *hpe; u16 peer_vhca_id; int bkt; if (!same_hw_devs(priv, peer_priv)) return; peer_vhca_id = MLX5_CAP_GEN(peer_mdev, vhca_id); hash_for_each(priv->fs.tc.hairpin_tbl, bkt, hpe, hairpin_hlist) { if (hpe->peer_vhca_id == peer_vhca_id) hpe->hp->pair->peer_gone = true; } } static int mlx5e_tc_netdev_event(struct notifier_block *this, unsigned long event, void *ptr) { struct net_device *ndev = netdev_notifier_info_to_dev(ptr); struct mlx5e_flow_steering *fs; struct mlx5e_priv *peer_priv; struct mlx5e_tc_table *tc; struct mlx5e_priv *priv; if (ndev->netdev_ops != &mlx5e_netdev_ops || event != NETDEV_UNREGISTER || ndev->reg_state == NETREG_REGISTERED) return NOTIFY_DONE; tc = container_of(this, struct mlx5e_tc_table, netdevice_nb); fs = container_of(tc, struct mlx5e_flow_steering, tc); priv = container_of(fs, struct mlx5e_priv, fs); peer_priv = netdev_priv(ndev); if (priv == peer_priv || !(priv->netdev->features & NETIF_F_HW_TC)) return NOTIFY_DONE; mlx5e_tc_hairpin_update_dead_peer(priv, peer_priv); return NOTIFY_DONE; } int mlx5e_tc_nic_init(struct mlx5e_priv *priv) { struct mlx5e_tc_table *tc = &priv->fs.tc; int err; hash_init(tc->mod_hdr_tbl); hash_init(tc->hairpin_tbl); err = rhashtable_init(&tc->ht, &tc_ht_params); if (err) return err; tc->netdevice_nb.notifier_call = mlx5e_tc_netdev_event; if (register_netdevice_notifier(&tc->netdevice_nb)) { tc->netdevice_nb.notifier_call = NULL; mlx5_core_warn(priv->mdev, "Failed to register netdev notifier\n"); } return err; } static void _mlx5e_tc_del_flow(void *ptr, void *arg) { struct mlx5e_tc_flow *flow = ptr; struct mlx5e_priv *priv = flow->priv; mlx5e_tc_del_flow(priv, flow); kfree(flow); } void mlx5e_tc_nic_cleanup(struct mlx5e_priv *priv) { struct mlx5e_tc_table *tc = &priv->fs.tc; if (tc->netdevice_nb.notifier_call) unregister_netdevice_notifier(&tc->netdevice_nb); rhashtable_destroy(&tc->ht); if (!IS_ERR_OR_NULL(tc->t)) { mlx5_destroy_flow_table(tc->t); tc->t = NULL; } } int mlx5e_tc_esw_init(struct rhashtable *tc_ht) { return rhashtable_init(tc_ht, &tc_ht_params); } void mlx5e_tc_esw_cleanup(struct rhashtable *tc_ht) { rhashtable_free_and_destroy(tc_ht, _mlx5e_tc_del_flow, NULL); } int mlx5e_tc_num_filters(struct mlx5e_priv *priv, int flags) { struct rhashtable *tc_ht = get_tc_ht(priv, flags); return atomic_read(&tc_ht->nelems); } void mlx5e_tc_clean_fdb_peer_flows(struct mlx5_eswitch *esw) { struct mlx5e_tc_flow *flow, *tmp; list_for_each_entry_safe(flow, tmp, &esw->offloads.peer_flows, peer) __mlx5e_tc_del_fdb_peer_flow(flow); }
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with Cregit http://github.com/cregit/cregit
Version 2.0-RC1