Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Maor Gottlieb | 3638 | 95.31% | 5 | 29.41% |
Eran Ben Elisha | 40 | 1.05% | 3 | 17.65% |
Tariq Toukan | 36 | 0.94% | 1 | 5.88% |
Erez Shitrit | 32 | 0.84% | 1 | 5.88% |
Mark Bloch | 20 | 0.52% | 1 | 5.88% |
Hadar Hen Zion | 17 | 0.45% | 2 | 11.76% |
Or Gerlitz | 14 | 0.37% | 1 | 5.88% |
Rabie Loulou | 10 | 0.26% | 1 | 5.88% |
Leon Romanovsky | 9 | 0.24% | 1 | 5.88% |
Colin Ian King | 1 | 0.03% | 1 | 5.88% |
Total | 3817 | 17 |
/* * 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 <linux/hash.h> #include <linux/mlx5/fs.h> #include <linux/ip.h> #include <linux/ipv6.h> #include "en.h" struct arfs_tuple { __be16 etype; u8 ip_proto; union { __be32 src_ipv4; struct in6_addr src_ipv6; }; union { __be32 dst_ipv4; struct in6_addr dst_ipv6; }; __be16 src_port; __be16 dst_port; }; struct arfs_rule { struct mlx5e_priv *priv; struct work_struct arfs_work; struct mlx5_flow_handle *rule; struct hlist_node hlist; int rxq; /* Flow ID passed to ndo_rx_flow_steer */ int flow_id; /* Filter ID returned by ndo_rx_flow_steer */ int filter_id; struct arfs_tuple tuple; }; #define mlx5e_for_each_arfs_rule(hn, tmp, arfs_tables, i, j) \ for (i = 0; i < ARFS_NUM_TYPES; i++) \ mlx5e_for_each_hash_arfs_rule(hn, tmp, arfs_tables[i].rules_hash, j) #define mlx5e_for_each_hash_arfs_rule(hn, tmp, hash, j) \ for (j = 0; j < ARFS_HASH_SIZE; j++) \ hlist_for_each_entry_safe(hn, tmp, &hash[j], hlist) static enum mlx5e_traffic_types arfs_get_tt(enum arfs_type type) { switch (type) { case ARFS_IPV4_TCP: return MLX5E_TT_IPV4_TCP; case ARFS_IPV4_UDP: return MLX5E_TT_IPV4_UDP; case ARFS_IPV6_TCP: return MLX5E_TT_IPV6_TCP; case ARFS_IPV6_UDP: return MLX5E_TT_IPV6_UDP; default: return -EINVAL; } } static int arfs_disable(struct mlx5e_priv *priv) { struct mlx5_flow_destination dest = {}; struct mlx5e_tir *tir = priv->indir_tir; int err = 0; int tt; int i; dest.type = MLX5_FLOW_DESTINATION_TYPE_TIR; for (i = 0; i < ARFS_NUM_TYPES; i++) { dest.tir_num = tir[i].tirn; tt = arfs_get_tt(i); /* Modify ttc rules destination to bypass the aRFS tables*/ err = mlx5_modify_rule_destination(priv->fs.ttc.rules[tt], &dest, NULL); if (err) { netdev_err(priv->netdev, "%s: modify ttc destination failed\n", __func__); return err; } } return 0; } static void arfs_del_rules(struct mlx5e_priv *priv); int mlx5e_arfs_disable(struct mlx5e_priv *priv) { arfs_del_rules(priv); return arfs_disable(priv); } int mlx5e_arfs_enable(struct mlx5e_priv *priv) { struct mlx5_flow_destination dest = {}; int err = 0; int tt; int i; dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; for (i = 0; i < ARFS_NUM_TYPES; i++) { dest.ft = priv->fs.arfs.arfs_tables[i].ft.t; tt = arfs_get_tt(i); /* Modify ttc rules destination to point on the aRFS FTs */ err = mlx5_modify_rule_destination(priv->fs.ttc.rules[tt], &dest, NULL); if (err) { netdev_err(priv->netdev, "%s: modify ttc destination failed err=%d\n", __func__, err); arfs_disable(priv); return err; } } return 0; } static void arfs_destroy_table(struct arfs_table *arfs_t) { mlx5_del_flow_rules(arfs_t->default_rule); mlx5e_destroy_flow_table(&arfs_t->ft); } void mlx5e_arfs_destroy_tables(struct mlx5e_priv *priv) { int i; if (!(priv->netdev->hw_features & NETIF_F_NTUPLE)) return; arfs_del_rules(priv); destroy_workqueue(priv->fs.arfs.wq); for (i = 0; i < ARFS_NUM_TYPES; i++) { if (!IS_ERR_OR_NULL(priv->fs.arfs.arfs_tables[i].ft.t)) arfs_destroy_table(&priv->fs.arfs.arfs_tables[i]); } } static int arfs_add_default_rule(struct mlx5e_priv *priv, enum arfs_type type) { struct arfs_table *arfs_t = &priv->fs.arfs.arfs_tables[type]; struct mlx5e_tir *tir = priv->indir_tir; struct mlx5_flow_destination dest = {}; MLX5_DECLARE_FLOW_ACT(flow_act); struct mlx5_flow_spec *spec; enum mlx5e_traffic_types tt; int err = 0; spec = kvzalloc(sizeof(*spec), GFP_KERNEL); if (!spec) { err = -ENOMEM; goto out; } dest.type = MLX5_FLOW_DESTINATION_TYPE_TIR; tt = arfs_get_tt(type); if (tt == -EINVAL) { netdev_err(priv->netdev, "%s: bad arfs_type: %d\n", __func__, type); err = -EINVAL; goto out; } dest.tir_num = tir[tt].tirn; arfs_t->default_rule = mlx5_add_flow_rules(arfs_t->ft.t, spec, &flow_act, &dest, 1); if (IS_ERR(arfs_t->default_rule)) { err = PTR_ERR(arfs_t->default_rule); arfs_t->default_rule = NULL; netdev_err(priv->netdev, "%s: add rule failed, arfs type=%d\n", __func__, type); } out: kvfree(spec); return err; } #define MLX5E_ARFS_NUM_GROUPS 2 #define MLX5E_ARFS_GROUP1_SIZE (BIT(16) - 1) #define MLX5E_ARFS_GROUP2_SIZE BIT(0) #define MLX5E_ARFS_TABLE_SIZE (MLX5E_ARFS_GROUP1_SIZE +\ MLX5E_ARFS_GROUP2_SIZE) static int arfs_create_groups(struct mlx5e_flow_table *ft, enum arfs_type type) { int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); void *outer_headers_c; int ix = 0; u32 *in; int err; u8 *mc; ft->g = kcalloc(MLX5E_ARFS_NUM_GROUPS, sizeof(*ft->g), GFP_KERNEL); in = kvzalloc(inlen, GFP_KERNEL); if (!in || !ft->g) { kvfree(ft->g); kvfree(in); return -ENOMEM; } mc = MLX5_ADDR_OF(create_flow_group_in, in, match_criteria); outer_headers_c = MLX5_ADDR_OF(fte_match_param, mc, outer_headers); MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, outer_headers_c, ethertype); switch (type) { case ARFS_IPV4_TCP: case ARFS_IPV6_TCP: MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, outer_headers_c, tcp_dport); MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, outer_headers_c, tcp_sport); break; case ARFS_IPV4_UDP: case ARFS_IPV6_UDP: MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, outer_headers_c, udp_dport); MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, outer_headers_c, udp_sport); break; default: err = -EINVAL; goto out; } switch (type) { case ARFS_IPV4_TCP: case ARFS_IPV4_UDP: MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, outer_headers_c, src_ipv4_src_ipv6.ipv4_layout.ipv4); MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, outer_headers_c, dst_ipv4_dst_ipv6.ipv4_layout.ipv4); break; case ARFS_IPV6_TCP: case ARFS_IPV6_UDP: memset(MLX5_ADDR_OF(fte_match_set_lyr_2_4, outer_headers_c, src_ipv4_src_ipv6.ipv6_layout.ipv6), 0xff, 16); memset(MLX5_ADDR_OF(fte_match_set_lyr_2_4, outer_headers_c, dst_ipv4_dst_ipv6.ipv6_layout.ipv6), 0xff, 16); break; default: err = -EINVAL; goto out; } MLX5_SET_CFG(in, match_criteria_enable, MLX5_MATCH_OUTER_HEADERS); MLX5_SET_CFG(in, start_flow_index, ix); ix += MLX5E_ARFS_GROUP1_SIZE; MLX5_SET_CFG(in, end_flow_index, ix - 1); ft->g[ft->num_groups] = mlx5_create_flow_group(ft->t, in); if (IS_ERR(ft->g[ft->num_groups])) goto err; ft->num_groups++; memset(in, 0, inlen); MLX5_SET_CFG(in, start_flow_index, ix); ix += MLX5E_ARFS_GROUP2_SIZE; MLX5_SET_CFG(in, end_flow_index, ix - 1); ft->g[ft->num_groups] = mlx5_create_flow_group(ft->t, in); if (IS_ERR(ft->g[ft->num_groups])) goto err; ft->num_groups++; kvfree(in); return 0; err: err = PTR_ERR(ft->g[ft->num_groups]); ft->g[ft->num_groups] = NULL; out: kvfree(in); return err; } static int arfs_create_table(struct mlx5e_priv *priv, enum arfs_type type) { struct mlx5e_arfs_tables *arfs = &priv->fs.arfs; struct mlx5e_flow_table *ft = &arfs->arfs_tables[type].ft; struct mlx5_flow_table_attr ft_attr = {}; int err; ft->num_groups = 0; ft_attr.max_fte = MLX5E_ARFS_TABLE_SIZE; ft_attr.level = MLX5E_ARFS_FT_LEVEL; ft_attr.prio = MLX5E_NIC_PRIO; ft->t = mlx5_create_flow_table(priv->fs.ns, &ft_attr); if (IS_ERR(ft->t)) { err = PTR_ERR(ft->t); ft->t = NULL; return err; } err = arfs_create_groups(ft, type); if (err) goto err; err = arfs_add_default_rule(priv, type); if (err) goto err; return 0; err: mlx5e_destroy_flow_table(ft); return err; } int mlx5e_arfs_create_tables(struct mlx5e_priv *priv) { int err = 0; int i; if (!(priv->netdev->hw_features & NETIF_F_NTUPLE)) return 0; spin_lock_init(&priv->fs.arfs.arfs_lock); INIT_LIST_HEAD(&priv->fs.arfs.rules); priv->fs.arfs.wq = create_singlethread_workqueue("mlx5e_arfs"); if (!priv->fs.arfs.wq) return -ENOMEM; for (i = 0; i < ARFS_NUM_TYPES; i++) { err = arfs_create_table(priv, i); if (err) goto err; } return 0; err: mlx5e_arfs_destroy_tables(priv); return err; } #define MLX5E_ARFS_EXPIRY_QUOTA 60 static void arfs_may_expire_flow(struct mlx5e_priv *priv) { struct arfs_rule *arfs_rule; struct hlist_node *htmp; int quota = 0; int i; int j; HLIST_HEAD(del_list); spin_lock_bh(&priv->fs.arfs.arfs_lock); mlx5e_for_each_arfs_rule(arfs_rule, htmp, priv->fs.arfs.arfs_tables, i, j) { if (!work_pending(&arfs_rule->arfs_work) && rps_may_expire_flow(priv->netdev, arfs_rule->rxq, arfs_rule->flow_id, arfs_rule->filter_id)) { hlist_del_init(&arfs_rule->hlist); hlist_add_head(&arfs_rule->hlist, &del_list); if (quota++ > MLX5E_ARFS_EXPIRY_QUOTA) break; } } spin_unlock_bh(&priv->fs.arfs.arfs_lock); hlist_for_each_entry_safe(arfs_rule, htmp, &del_list, hlist) { if (arfs_rule->rule) mlx5_del_flow_rules(arfs_rule->rule); hlist_del(&arfs_rule->hlist); kfree(arfs_rule); } } static void arfs_del_rules(struct mlx5e_priv *priv) { struct hlist_node *htmp; struct arfs_rule *rule; int i; int j; HLIST_HEAD(del_list); spin_lock_bh(&priv->fs.arfs.arfs_lock); mlx5e_for_each_arfs_rule(rule, htmp, priv->fs.arfs.arfs_tables, i, j) { hlist_del_init(&rule->hlist); hlist_add_head(&rule->hlist, &del_list); } spin_unlock_bh(&priv->fs.arfs.arfs_lock); hlist_for_each_entry_safe(rule, htmp, &del_list, hlist) { cancel_work_sync(&rule->arfs_work); if (rule->rule) mlx5_del_flow_rules(rule->rule); hlist_del(&rule->hlist); kfree(rule); } } static struct hlist_head * arfs_hash_bucket(struct arfs_table *arfs_t, __be16 src_port, __be16 dst_port) { unsigned long l; int bucket_idx; l = (__force unsigned long)src_port | ((__force unsigned long)dst_port << 2); bucket_idx = hash_long(l, ARFS_HASH_SHIFT); return &arfs_t->rules_hash[bucket_idx]; } static u8 arfs_get_ip_proto(const struct sk_buff *skb) { return (skb->protocol == htons(ETH_P_IP)) ? ip_hdr(skb)->protocol : ipv6_hdr(skb)->nexthdr; } static struct arfs_table *arfs_get_table(struct mlx5e_arfs_tables *arfs, u8 ip_proto, __be16 etype) { if (etype == htons(ETH_P_IP) && ip_proto == IPPROTO_TCP) return &arfs->arfs_tables[ARFS_IPV4_TCP]; if (etype == htons(ETH_P_IP) && ip_proto == IPPROTO_UDP) return &arfs->arfs_tables[ARFS_IPV4_UDP]; if (etype == htons(ETH_P_IPV6) && ip_proto == IPPROTO_TCP) return &arfs->arfs_tables[ARFS_IPV6_TCP]; if (etype == htons(ETH_P_IPV6) && ip_proto == IPPROTO_UDP) return &arfs->arfs_tables[ARFS_IPV6_UDP]; return NULL; } static struct mlx5_flow_handle *arfs_add_rule(struct mlx5e_priv *priv, struct arfs_rule *arfs_rule) { struct mlx5e_arfs_tables *arfs = &priv->fs.arfs; struct arfs_tuple *tuple = &arfs_rule->tuple; struct mlx5_flow_handle *rule = NULL; struct mlx5_flow_destination dest = {}; MLX5_DECLARE_FLOW_ACT(flow_act); struct arfs_table *arfs_table; struct mlx5_flow_spec *spec; struct mlx5_flow_table *ft; int err = 0; spec = kvzalloc(sizeof(*spec), GFP_KERNEL); if (!spec) { err = -ENOMEM; goto out; } spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS; MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria, outer_headers.ethertype); MLX5_SET(fte_match_param, spec->match_value, outer_headers.ethertype, ntohs(tuple->etype)); arfs_table = arfs_get_table(arfs, tuple->ip_proto, tuple->etype); if (!arfs_table) { err = -EINVAL; goto out; } ft = arfs_table->ft.t; if (tuple->ip_proto == IPPROTO_TCP) { MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria, outer_headers.tcp_dport); MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria, outer_headers.tcp_sport); MLX5_SET(fte_match_param, spec->match_value, outer_headers.tcp_dport, ntohs(tuple->dst_port)); MLX5_SET(fte_match_param, spec->match_value, outer_headers.tcp_sport, ntohs(tuple->src_port)); } else { MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria, outer_headers.udp_dport); MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria, outer_headers.udp_sport); MLX5_SET(fte_match_param, spec->match_value, outer_headers.udp_dport, ntohs(tuple->dst_port)); MLX5_SET(fte_match_param, spec->match_value, outer_headers.udp_sport, ntohs(tuple->src_port)); } if (tuple->etype == htons(ETH_P_IP)) { memcpy(MLX5_ADDR_OF(fte_match_param, spec->match_value, outer_headers.src_ipv4_src_ipv6.ipv4_layout.ipv4), &tuple->src_ipv4, 4); memcpy(MLX5_ADDR_OF(fte_match_param, spec->match_value, outer_headers.dst_ipv4_dst_ipv6.ipv4_layout.ipv4), &tuple->dst_ipv4, 4); MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria, outer_headers.src_ipv4_src_ipv6.ipv4_layout.ipv4); MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria, outer_headers.dst_ipv4_dst_ipv6.ipv4_layout.ipv4); } else { memcpy(MLX5_ADDR_OF(fte_match_param, spec->match_value, outer_headers.src_ipv4_src_ipv6.ipv6_layout.ipv6), &tuple->src_ipv6, 16); memcpy(MLX5_ADDR_OF(fte_match_param, spec->match_value, outer_headers.dst_ipv4_dst_ipv6.ipv6_layout.ipv6), &tuple->dst_ipv6, 16); memset(MLX5_ADDR_OF(fte_match_param, spec->match_criteria, outer_headers.src_ipv4_src_ipv6.ipv6_layout.ipv6), 0xff, 16); memset(MLX5_ADDR_OF(fte_match_param, spec->match_criteria, outer_headers.dst_ipv4_dst_ipv6.ipv6_layout.ipv6), 0xff, 16); } dest.type = MLX5_FLOW_DESTINATION_TYPE_TIR; dest.tir_num = priv->direct_tir[arfs_rule->rxq].tirn; rule = mlx5_add_flow_rules(ft, spec, &flow_act, &dest, 1); if (IS_ERR(rule)) { err = PTR_ERR(rule); priv->channel_stats[arfs_rule->rxq].rq.arfs_err++; mlx5e_dbg(HW, priv, "%s: add rule(filter id=%d, rq idx=%d, ip proto=0x%x) failed,err=%d\n", __func__, arfs_rule->filter_id, arfs_rule->rxq, tuple->ip_proto, err); } out: kvfree(spec); return err ? ERR_PTR(err) : rule; } static void arfs_modify_rule_rq(struct mlx5e_priv *priv, struct mlx5_flow_handle *rule, u16 rxq) { struct mlx5_flow_destination dst = {}; int err = 0; dst.type = MLX5_FLOW_DESTINATION_TYPE_TIR; dst.tir_num = priv->direct_tir[rxq].tirn; err = mlx5_modify_rule_destination(rule, &dst, NULL); if (err) netdev_warn(priv->netdev, "Failed to modify aRFS rule destination to rq=%d\n", rxq); } static void arfs_handle_work(struct work_struct *work) { struct arfs_rule *arfs_rule = container_of(work, struct arfs_rule, arfs_work); struct mlx5e_priv *priv = arfs_rule->priv; struct mlx5_flow_handle *rule; mutex_lock(&priv->state_lock); if (!test_bit(MLX5E_STATE_OPENED, &priv->state)) { spin_lock_bh(&priv->fs.arfs.arfs_lock); hlist_del(&arfs_rule->hlist); spin_unlock_bh(&priv->fs.arfs.arfs_lock); mutex_unlock(&priv->state_lock); kfree(arfs_rule); goto out; } mutex_unlock(&priv->state_lock); if (!arfs_rule->rule) { rule = arfs_add_rule(priv, arfs_rule); if (IS_ERR(rule)) goto out; arfs_rule->rule = rule; } else { arfs_modify_rule_rq(priv, arfs_rule->rule, arfs_rule->rxq); } out: arfs_may_expire_flow(priv); } /* return L4 destination port from ip4/6 packets */ static __be16 arfs_get_dst_port(const struct sk_buff *skb) { char *transport_header; transport_header = skb_transport_header(skb); if (arfs_get_ip_proto(skb) == IPPROTO_TCP) return ((struct tcphdr *)transport_header)->dest; return ((struct udphdr *)transport_header)->dest; } /* return L4 source port from ip4/6 packets */ static __be16 arfs_get_src_port(const struct sk_buff *skb) { char *transport_header; transport_header = skb_transport_header(skb); if (arfs_get_ip_proto(skb) == IPPROTO_TCP) return ((struct tcphdr *)transport_header)->source; return ((struct udphdr *)transport_header)->source; } static struct arfs_rule *arfs_alloc_rule(struct mlx5e_priv *priv, struct arfs_table *arfs_t, const struct sk_buff *skb, u16 rxq, u32 flow_id) { struct arfs_rule *rule; struct arfs_tuple *tuple; rule = kzalloc(sizeof(*rule), GFP_ATOMIC); if (!rule) return NULL; rule->priv = priv; rule->rxq = rxq; INIT_WORK(&rule->arfs_work, arfs_handle_work); tuple = &rule->tuple; tuple->etype = skb->protocol; if (tuple->etype == htons(ETH_P_IP)) { tuple->src_ipv4 = ip_hdr(skb)->saddr; tuple->dst_ipv4 = ip_hdr(skb)->daddr; } else { memcpy(&tuple->src_ipv6, &ipv6_hdr(skb)->saddr, sizeof(struct in6_addr)); memcpy(&tuple->dst_ipv6, &ipv6_hdr(skb)->daddr, sizeof(struct in6_addr)); } tuple->ip_proto = arfs_get_ip_proto(skb); tuple->src_port = arfs_get_src_port(skb); tuple->dst_port = arfs_get_dst_port(skb); rule->flow_id = flow_id; rule->filter_id = priv->fs.arfs.last_filter_id++ % RPS_NO_FILTER; hlist_add_head(&rule->hlist, arfs_hash_bucket(arfs_t, tuple->src_port, tuple->dst_port)); return rule; } static bool arfs_cmp_ips(struct arfs_tuple *tuple, const struct sk_buff *skb) { if (tuple->etype == htons(ETH_P_IP) && tuple->src_ipv4 == ip_hdr(skb)->saddr && tuple->dst_ipv4 == ip_hdr(skb)->daddr) return true; if (tuple->etype == htons(ETH_P_IPV6) && (!memcmp(&tuple->src_ipv6, &ipv6_hdr(skb)->saddr, sizeof(struct in6_addr))) && (!memcmp(&tuple->dst_ipv6, &ipv6_hdr(skb)->daddr, sizeof(struct in6_addr)))) return true; return false; } static struct arfs_rule *arfs_find_rule(struct arfs_table *arfs_t, const struct sk_buff *skb) { struct arfs_rule *arfs_rule; struct hlist_head *head; __be16 src_port = arfs_get_src_port(skb); __be16 dst_port = arfs_get_dst_port(skb); head = arfs_hash_bucket(arfs_t, src_port, dst_port); hlist_for_each_entry(arfs_rule, head, hlist) { if (arfs_rule->tuple.src_port == src_port && arfs_rule->tuple.dst_port == dst_port && arfs_cmp_ips(&arfs_rule->tuple, skb)) { return arfs_rule; } } return NULL; } int mlx5e_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb, u16 rxq_index, u32 flow_id) { struct mlx5e_priv *priv = netdev_priv(dev); struct mlx5e_arfs_tables *arfs = &priv->fs.arfs; struct arfs_table *arfs_t; struct arfs_rule *arfs_rule; if (skb->protocol != htons(ETH_P_IP) && skb->protocol != htons(ETH_P_IPV6)) return -EPROTONOSUPPORT; if (skb->encapsulation) return -EPROTONOSUPPORT; arfs_t = arfs_get_table(arfs, arfs_get_ip_proto(skb), skb->protocol); if (!arfs_t) return -EPROTONOSUPPORT; spin_lock_bh(&arfs->arfs_lock); arfs_rule = arfs_find_rule(arfs_t, skb); if (arfs_rule) { if (arfs_rule->rxq == rxq_index) { spin_unlock_bh(&arfs->arfs_lock); return arfs_rule->filter_id; } arfs_rule->rxq = rxq_index; } else { arfs_rule = arfs_alloc_rule(priv, arfs_t, skb, rxq_index, flow_id); if (!arfs_rule) { spin_unlock_bh(&arfs->arfs_lock); return -ENOMEM; } } queue_work(priv->fs.arfs.wq, &arfs_rule->arfs_work); spin_unlock_bh(&arfs->arfs_lock); return arfs_rule->filter_id; }
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