Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Pieter Jansen van Vuuren | 4292 | 66.35% | 24 | 31.17% |
John Hurley | 1674 | 25.88% | 16 | 20.78% |
Pablo Neira Ayuso | 186 | 2.88% | 4 | 5.19% |
Baowen Zheng | 138 | 2.13% | 5 | 6.49% |
Louis Peens | 42 | 0.65% | 4 | 5.19% |
Alexander Lobakin | 41 | 0.63% | 1 | 1.30% |
Jakub Kiciński | 38 | 0.59% | 7 | 9.09% |
David S. Miller | 10 | 0.15% | 1 | 1.30% |
Yu Xiao | 10 | 0.15% | 1 | 1.30% |
Jiri Pirko | 10 | 0.15% | 1 | 1.30% |
Manish Chopra | 5 | 0.08% | 1 | 1.30% |
Simon Horman | 4 | 0.06% | 2 | 2.60% |
Américo Wang | 3 | 0.05% | 1 | 1.30% |
Yinjun Zhang | 3 | 0.05% | 1 | 1.30% |
Eric Dumazet | 3 | 0.05% | 1 | 1.30% |
Kuniyuki Iwashima | 3 | 0.05% | 1 | 1.30% |
Moshe Shemesh | 2 | 0.03% | 2 | 2.60% |
Gustavo A. R. Silva | 2 | 0.03% | 1 | 1.30% |
Niklas Söderlund | 1 | 0.02% | 1 | 1.30% |
Walter Heymans | 1 | 0.02% | 1 | 1.30% |
Florian Fainelli | 1 | 0.02% | 1 | 1.30% |
Total | 6469 | 77 |
// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) /* Copyright (C) 2017-2018 Netronome Systems, Inc. */ #include <linux/bitfield.h> #include <linux/mpls.h> #include <net/pkt_cls.h> #include <net/tc_act/tc_csum.h> #include <net/tc_act/tc_gact.h> #include <net/tc_act/tc_mirred.h> #include <net/tc_act/tc_mpls.h> #include <net/tc_act/tc_pedit.h> #include <net/tc_act/tc_vlan.h> #include <net/tc_act/tc_tunnel_key.h> #include "cmsg.h" #include "main.h" #include "../nfp_net_repr.h" /* The kernel versions of TUNNEL_* are not ABI and therefore vulnerable * to change. Such changes will break our FW ABI. */ #define NFP_FL_TUNNEL_CSUM cpu_to_be16(0x01) #define NFP_FL_TUNNEL_KEY cpu_to_be16(0x04) #define NFP_FL_TUNNEL_GENEVE_OPT cpu_to_be16(0x0800) #define NFP_FL_SUPPORTED_TUNNEL_INFO_FLAGS (IP_TUNNEL_INFO_TX | \ IP_TUNNEL_INFO_IPV6) #define NFP_FL_SUPPORTED_UDP_TUN_FLAGS (NFP_FL_TUNNEL_CSUM | \ NFP_FL_TUNNEL_KEY | \ NFP_FL_TUNNEL_GENEVE_OPT) static int nfp_fl_push_mpls(struct nfp_fl_push_mpls *push_mpls, const struct flow_action_entry *act, struct netlink_ext_ack *extack) { size_t act_size = sizeof(struct nfp_fl_push_mpls); u32 mpls_lse = 0; push_mpls->head.jump_id = NFP_FL_ACTION_OPCODE_PUSH_MPLS; push_mpls->head.len_lw = act_size >> NFP_FL_LW_SIZ; /* BOS is optional in the TC action but required for offload. */ if (act->mpls_push.bos != ACT_MPLS_BOS_NOT_SET) { mpls_lse |= act->mpls_push.bos << MPLS_LS_S_SHIFT; } else { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: BOS field must explicitly be set for MPLS push"); return -EOPNOTSUPP; } /* Leave MPLS TC as a default value of 0 if not explicitly set. */ if (act->mpls_push.tc != ACT_MPLS_TC_NOT_SET) mpls_lse |= act->mpls_push.tc << MPLS_LS_TC_SHIFT; /* Proto, label and TTL are enforced and verified for MPLS push. */ mpls_lse |= act->mpls_push.label << MPLS_LS_LABEL_SHIFT; mpls_lse |= act->mpls_push.ttl << MPLS_LS_TTL_SHIFT; push_mpls->ethtype = act->mpls_push.proto; push_mpls->lse = cpu_to_be32(mpls_lse); return 0; } static void nfp_fl_pop_mpls(struct nfp_fl_pop_mpls *pop_mpls, const struct flow_action_entry *act) { size_t act_size = sizeof(struct nfp_fl_pop_mpls); pop_mpls->head.jump_id = NFP_FL_ACTION_OPCODE_POP_MPLS; pop_mpls->head.len_lw = act_size >> NFP_FL_LW_SIZ; pop_mpls->ethtype = act->mpls_pop.proto; } static void nfp_fl_set_mpls(struct nfp_fl_set_mpls *set_mpls, const struct flow_action_entry *act) { size_t act_size = sizeof(struct nfp_fl_set_mpls); u32 mpls_lse = 0, mpls_mask = 0; set_mpls->head.jump_id = NFP_FL_ACTION_OPCODE_SET_MPLS; set_mpls->head.len_lw = act_size >> NFP_FL_LW_SIZ; if (act->mpls_mangle.label != ACT_MPLS_LABEL_NOT_SET) { mpls_lse |= act->mpls_mangle.label << MPLS_LS_LABEL_SHIFT; mpls_mask |= MPLS_LS_LABEL_MASK; } if (act->mpls_mangle.tc != ACT_MPLS_TC_NOT_SET) { mpls_lse |= act->mpls_mangle.tc << MPLS_LS_TC_SHIFT; mpls_mask |= MPLS_LS_TC_MASK; } if (act->mpls_mangle.bos != ACT_MPLS_BOS_NOT_SET) { mpls_lse |= act->mpls_mangle.bos << MPLS_LS_S_SHIFT; mpls_mask |= MPLS_LS_S_MASK; } if (act->mpls_mangle.ttl) { mpls_lse |= act->mpls_mangle.ttl << MPLS_LS_TTL_SHIFT; mpls_mask |= MPLS_LS_TTL_MASK; } set_mpls->lse = cpu_to_be32(mpls_lse); set_mpls->lse_mask = cpu_to_be32(mpls_mask); } static void nfp_fl_pop_vlan(struct nfp_fl_pop_vlan *pop_vlan) { size_t act_size = sizeof(struct nfp_fl_pop_vlan); pop_vlan->head.jump_id = NFP_FL_ACTION_OPCODE_POP_VLAN; pop_vlan->head.len_lw = act_size >> NFP_FL_LW_SIZ; pop_vlan->reserved = 0; } static void nfp_fl_push_vlan(struct nfp_fl_push_vlan *push_vlan, const struct flow_action_entry *act) { size_t act_size = sizeof(struct nfp_fl_push_vlan); u16 tmp_push_vlan_tci; push_vlan->head.jump_id = NFP_FL_ACTION_OPCODE_PUSH_VLAN; push_vlan->head.len_lw = act_size >> NFP_FL_LW_SIZ; push_vlan->reserved = 0; push_vlan->vlan_tpid = act->vlan.proto; tmp_push_vlan_tci = FIELD_PREP(NFP_FL_PUSH_VLAN_PRIO, act->vlan.prio) | FIELD_PREP(NFP_FL_PUSH_VLAN_VID, act->vlan.vid); push_vlan->vlan_tci = cpu_to_be16(tmp_push_vlan_tci); } static int nfp_fl_pre_lag(struct nfp_app *app, const struct flow_action_entry *act, struct nfp_fl_payload *nfp_flow, int act_len, struct netlink_ext_ack *extack) { size_t act_size = sizeof(struct nfp_fl_pre_lag); struct nfp_fl_pre_lag *pre_lag; struct net_device *out_dev; int err; out_dev = act->dev; if (!out_dev || !netif_is_lag_master(out_dev)) return 0; if (act_len + act_size > NFP_FL_MAX_A_SIZ) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: maximum allowed action list size exceeded at LAG action"); return -EOPNOTSUPP; } /* Pre_lag action must be first on action list. * If other actions already exist they need to be pushed forward. */ if (act_len) memmove(nfp_flow->action_data + act_size, nfp_flow->action_data, act_len); pre_lag = (struct nfp_fl_pre_lag *)nfp_flow->action_data; err = nfp_flower_lag_populate_pre_action(app, out_dev, pre_lag, extack); if (err) return err; pre_lag->head.jump_id = NFP_FL_ACTION_OPCODE_PRE_LAG; pre_lag->head.len_lw = act_size >> NFP_FL_LW_SIZ; nfp_flow->meta.shortcut = cpu_to_be32(NFP_FL_SC_ACT_NULL); return act_size; } static int nfp_fl_output(struct nfp_app *app, struct nfp_fl_output *output, const struct flow_action_entry *act, struct nfp_fl_payload *nfp_flow, bool last, struct net_device *in_dev, enum nfp_flower_tun_type tun_type, int *tun_out_cnt, bool pkt_host, struct netlink_ext_ack *extack) { size_t act_size = sizeof(struct nfp_fl_output); struct nfp_flower_priv *priv = app->priv; struct net_device *out_dev; u16 tmp_flags; output->head.jump_id = NFP_FL_ACTION_OPCODE_OUTPUT; output->head.len_lw = act_size >> NFP_FL_LW_SIZ; out_dev = act->dev; if (!out_dev) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid egress interface for mirred action"); return -EOPNOTSUPP; } tmp_flags = last ? NFP_FL_OUT_FLAGS_LAST : 0; if (tun_type) { /* Verify the egress netdev matches the tunnel type. */ if (!nfp_fl_netdev_is_tunnel_type(out_dev, tun_type)) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: egress interface does not match the required tunnel type"); return -EOPNOTSUPP; } if (*tun_out_cnt) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: cannot offload more than one tunnel mirred output per filter"); return -EOPNOTSUPP; } (*tun_out_cnt)++; output->flags = cpu_to_be16(tmp_flags | NFP_FL_OUT_FLAGS_USE_TUN); output->port = cpu_to_be32(NFP_FL_PORT_TYPE_TUN | tun_type); } else if (netif_is_lag_master(out_dev) && priv->flower_en_feats & NFP_FL_ENABLE_LAG) { int gid; output->flags = cpu_to_be16(tmp_flags); gid = nfp_flower_lag_get_output_id(app, out_dev); if (gid < 0) { NL_SET_ERR_MSG_MOD(extack, "invalid entry: cannot find group id for LAG action"); return gid; } output->port = cpu_to_be32(NFP_FL_LAG_OUT | gid); } else if (nfp_flower_internal_port_can_offload(app, out_dev)) { if (!(priv->flower_ext_feats & NFP_FL_FEATS_PRE_TUN_RULES) && !(priv->flower_ext_feats & NFP_FL_FEATS_DECAP_V2)) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: pre-tunnel rules not supported in loaded firmware"); return -EOPNOTSUPP; } if (nfp_flow->pre_tun_rule.dev || !pkt_host) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: pre-tunnel rules require single egress dev and ptype HOST action"); return -EOPNOTSUPP; } nfp_flow->pre_tun_rule.dev = out_dev; return 0; } else { /* Set action output parameters. */ output->flags = cpu_to_be16(tmp_flags); if (nfp_netdev_is_nfp_repr(in_dev)) { /* Confirm ingress and egress are on same device. */ if (!netdev_port_same_parent_id(in_dev, out_dev)) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: ingress and egress interfaces are on different devices"); return -EOPNOTSUPP; } } if (!nfp_netdev_is_nfp_repr(out_dev)) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: egress interface is not an nfp port"); return -EOPNOTSUPP; } output->port = cpu_to_be32(nfp_repr_get_port_id(out_dev)); if (!output->port) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid port id for egress interface"); return -EOPNOTSUPP; } } nfp_flow->meta.shortcut = output->port; return 0; } static bool nfp_flower_tun_is_gre(struct flow_rule *rule, int start_idx) { struct flow_action_entry *act = rule->action.entries; int num_act = rule->action.num_entries; int act_idx; /* Preparse action list for next mirred or redirect action */ for (act_idx = start_idx + 1; act_idx < num_act; act_idx++) if (act[act_idx].id == FLOW_ACTION_REDIRECT || act[act_idx].id == FLOW_ACTION_MIRRED) return netif_is_gretap(act[act_idx].dev) || netif_is_ip6gretap(act[act_idx].dev); return false; } static enum nfp_flower_tun_type nfp_fl_get_tun_from_act(struct nfp_app *app, struct flow_rule *rule, const struct flow_action_entry *act, int act_idx) { const struct ip_tunnel_info *tun = act->tunnel; struct nfp_flower_priv *priv = app->priv; /* Determine the tunnel type based on the egress netdev * in the mirred action for tunnels without l4. */ if (nfp_flower_tun_is_gre(rule, act_idx)) return NFP_FL_TUNNEL_GRE; switch (tun->key.tp_dst) { case htons(IANA_VXLAN_UDP_PORT): return NFP_FL_TUNNEL_VXLAN; case htons(GENEVE_UDP_PORT): if (priv->flower_ext_feats & NFP_FL_FEATS_GENEVE) return NFP_FL_TUNNEL_GENEVE; fallthrough; default: return NFP_FL_TUNNEL_NONE; } } static struct nfp_fl_pre_tunnel *nfp_fl_pre_tunnel(char *act_data, int act_len) { size_t act_size = sizeof(struct nfp_fl_pre_tunnel); struct nfp_fl_pre_tunnel *pre_tun_act; /* Pre_tunnel action must be first on action list. * If other actions already exist they need to be pushed forward. */ if (act_len) memmove(act_data + act_size, act_data, act_len); pre_tun_act = (struct nfp_fl_pre_tunnel *)act_data; memset(pre_tun_act, 0, act_size); pre_tun_act->head.jump_id = NFP_FL_ACTION_OPCODE_PRE_TUNNEL; pre_tun_act->head.len_lw = act_size >> NFP_FL_LW_SIZ; return pre_tun_act; } static int nfp_fl_push_geneve_options(struct nfp_fl_payload *nfp_fl, int *list_len, const struct flow_action_entry *act, struct netlink_ext_ack *extack) { struct ip_tunnel_info *ip_tun = (struct ip_tunnel_info *)act->tunnel; int opt_len, opt_cnt, act_start, tot_push_len; u8 *src = ip_tunnel_info_opts(ip_tun); /* We need to populate the options in reverse order for HW. * Therefore we go through the options, calculating the * number of options and the total size, then we populate * them in reverse order in the action list. */ opt_cnt = 0; tot_push_len = 0; opt_len = ip_tun->options_len; while (opt_len > 0) { struct geneve_opt *opt = (struct geneve_opt *)src; opt_cnt++; if (opt_cnt > NFP_FL_MAX_GENEVE_OPT_CNT) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: maximum allowed number of geneve options exceeded"); return -EOPNOTSUPP; } tot_push_len += sizeof(struct nfp_fl_push_geneve) + opt->length * 4; if (tot_push_len > NFP_FL_MAX_GENEVE_OPT_ACT) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: maximum allowed action list size exceeded at push geneve options"); return -EOPNOTSUPP; } opt_len -= sizeof(struct geneve_opt) + opt->length * 4; src += sizeof(struct geneve_opt) + opt->length * 4; } if (*list_len + tot_push_len > NFP_FL_MAX_A_SIZ) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: maximum allowed action list size exceeded at push geneve options"); return -EOPNOTSUPP; } act_start = *list_len; *list_len += tot_push_len; src = ip_tunnel_info_opts(ip_tun); while (opt_cnt) { struct geneve_opt *opt = (struct geneve_opt *)src; struct nfp_fl_push_geneve *push; size_t act_size, len; opt_cnt--; act_size = sizeof(struct nfp_fl_push_geneve) + opt->length * 4; tot_push_len -= act_size; len = act_start + tot_push_len; push = (struct nfp_fl_push_geneve *)&nfp_fl->action_data[len]; push->head.jump_id = NFP_FL_ACTION_OPCODE_PUSH_GENEVE; push->head.len_lw = act_size >> NFP_FL_LW_SIZ; push->reserved = 0; push->class = opt->opt_class; push->type = opt->type; push->length = opt->length; memcpy(&push->opt_data, opt->opt_data, opt->length * 4); src += sizeof(struct geneve_opt) + opt->length * 4; } return 0; } #define NFP_FL_CHECK(flag) ({ \ IP_TUNNEL_DECLARE_FLAGS(__check) = { }; \ __be16 __res; \ \ __set_bit(IP_TUNNEL_##flag##_BIT, __check); \ __res = ip_tunnel_flags_to_be16(__check); \ \ BUILD_BUG_ON(__builtin_constant_p(__res) && \ NFP_FL_TUNNEL_##flag != __res); \ }) static int nfp_fl_set_tun(struct nfp_app *app, struct nfp_fl_set_tun *set_tun, const struct flow_action_entry *act, struct nfp_fl_pre_tunnel *pre_tun, enum nfp_flower_tun_type tun_type, struct net_device *netdev, struct netlink_ext_ack *extack) { const struct ip_tunnel_info *ip_tun = act->tunnel; bool ipv6 = ip_tunnel_info_af(ip_tun) == AF_INET6; size_t act_size = sizeof(struct nfp_fl_set_tun); struct nfp_flower_priv *priv = app->priv; u32 tmp_set_ip_tun_type_index = 0; /* Currently support one pre-tunnel so index is always 0. */ int pretun_idx = 0; __be16 tun_flags; if (!IS_ENABLED(CONFIG_IPV6) && ipv6) return -EOPNOTSUPP; if (ipv6 && !(priv->flower_ext_feats & NFP_FL_FEATS_IPV6_TUN)) return -EOPNOTSUPP; NFP_FL_CHECK(CSUM); NFP_FL_CHECK(KEY); NFP_FL_CHECK(GENEVE_OPT); if (ip_tun->options_len && (tun_type != NFP_FL_TUNNEL_GENEVE || !(priv->flower_ext_feats & NFP_FL_FEATS_GENEVE_OPT))) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: loaded firmware does not support geneve options offload"); return -EOPNOTSUPP; } tun_flags = ip_tunnel_flags_to_be16(ip_tun->key.tun_flags); if (!ip_tunnel_flags_is_be16_compat(ip_tun->key.tun_flags) || (tun_flags & ~NFP_FL_SUPPORTED_UDP_TUN_FLAGS)) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: loaded firmware does not support tunnel flag offload"); return -EOPNOTSUPP; } set_tun->head.jump_id = NFP_FL_ACTION_OPCODE_SET_TUNNEL; set_tun->head.len_lw = act_size >> NFP_FL_LW_SIZ; /* Set tunnel type and pre-tunnel index. */ tmp_set_ip_tun_type_index |= FIELD_PREP(NFP_FL_TUNNEL_TYPE, tun_type) | FIELD_PREP(NFP_FL_PRE_TUN_INDEX, pretun_idx); set_tun->tun_type_index = cpu_to_be32(tmp_set_ip_tun_type_index); if (tun_flags & NFP_FL_TUNNEL_KEY) set_tun->tun_id = ip_tun->key.tun_id; if (ip_tun->key.ttl) { set_tun->ttl = ip_tun->key.ttl; #ifdef CONFIG_IPV6 } else if (ipv6) { struct net *net = dev_net(netdev); struct flowi6 flow = {}; struct dst_entry *dst; flow.daddr = ip_tun->key.u.ipv6.dst; flow.flowi4_proto = IPPROTO_UDP; dst = ipv6_stub->ipv6_dst_lookup_flow(net, NULL, &flow, NULL); if (!IS_ERR(dst)) { set_tun->ttl = ip6_dst_hoplimit(dst); dst_release(dst); } else { set_tun->ttl = READ_ONCE(net->ipv6.devconf_all->hop_limit); } #endif } else { struct net *net = dev_net(netdev); struct flowi4 flow = {}; struct rtable *rt; int err; /* Do a route lookup to determine ttl - if fails then use * default. Note that CONFIG_INET is a requirement of * CONFIG_NET_SWITCHDEV so must be defined here. */ flow.daddr = ip_tun->key.u.ipv4.dst; flow.flowi4_proto = IPPROTO_UDP; rt = ip_route_output_key(net, &flow); err = PTR_ERR_OR_ZERO(rt); if (!err) { set_tun->ttl = ip4_dst_hoplimit(&rt->dst); ip_rt_put(rt); } else { set_tun->ttl = READ_ONCE(net->ipv4.sysctl_ip_default_ttl); } } set_tun->tos = ip_tun->key.tos; set_tun->tun_flags = tun_flags; if (tun_type == NFP_FL_TUNNEL_GENEVE) { set_tun->tun_proto = htons(ETH_P_TEB); set_tun->tun_len = ip_tun->options_len / 4; } /* Complete pre_tunnel action. */ if (ipv6) { pre_tun->flags |= cpu_to_be16(NFP_FL_PRE_TUN_IPV6); pre_tun->ipv6_dst = ip_tun->key.u.ipv6.dst; } else { pre_tun->ipv4_dst = ip_tun->key.u.ipv4.dst; } return 0; } static void nfp_fl_set_helper32(u32 value, u32 mask, u8 *p_exact, u8 *p_mask) { u32 oldvalue = get_unaligned((u32 *)p_exact); u32 oldmask = get_unaligned((u32 *)p_mask); value &= mask; value |= oldvalue & ~mask; put_unaligned(oldmask | mask, (u32 *)p_mask); put_unaligned(value, (u32 *)p_exact); } static int nfp_fl_set_eth(const struct flow_action_entry *act, u32 off, struct nfp_fl_set_eth *set_eth, struct netlink_ext_ack *extack) { u32 exact, mask; if (off + 4 > ETH_ALEN * 2) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid pedit ethernet action"); return -EOPNOTSUPP; } mask = ~act->mangle.mask; exact = act->mangle.val; if (exact & ~mask) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid pedit ethernet action"); return -EOPNOTSUPP; } nfp_fl_set_helper32(exact, mask, &set_eth->eth_addr_val[off], &set_eth->eth_addr_mask[off]); set_eth->reserved = cpu_to_be16(0); set_eth->head.jump_id = NFP_FL_ACTION_OPCODE_SET_ETHERNET; set_eth->head.len_lw = sizeof(*set_eth) >> NFP_FL_LW_SIZ; return 0; } struct ipv4_ttl_word { __u8 ttl; __u8 protocol; __sum16 check; }; static int nfp_fl_set_ip4(const struct flow_action_entry *act, u32 off, struct nfp_fl_set_ip4_addrs *set_ip_addr, struct nfp_fl_set_ip4_ttl_tos *set_ip_ttl_tos, struct netlink_ext_ack *extack) { struct ipv4_ttl_word *ttl_word_mask; struct ipv4_ttl_word *ttl_word; struct iphdr *tos_word_mask; struct iphdr *tos_word; __be32 exact, mask; /* We are expecting tcf_pedit to return a big endian value */ mask = (__force __be32)~act->mangle.mask; exact = (__force __be32)act->mangle.val; if (exact & ~mask) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid pedit IPv4 action"); return -EOPNOTSUPP; } switch (off) { case offsetof(struct iphdr, daddr): set_ip_addr->ipv4_dst_mask |= mask; set_ip_addr->ipv4_dst &= ~mask; set_ip_addr->ipv4_dst |= exact & mask; set_ip_addr->head.jump_id = NFP_FL_ACTION_OPCODE_SET_IPV4_ADDRS; set_ip_addr->head.len_lw = sizeof(*set_ip_addr) >> NFP_FL_LW_SIZ; break; case offsetof(struct iphdr, saddr): set_ip_addr->ipv4_src_mask |= mask; set_ip_addr->ipv4_src &= ~mask; set_ip_addr->ipv4_src |= exact & mask; set_ip_addr->head.jump_id = NFP_FL_ACTION_OPCODE_SET_IPV4_ADDRS; set_ip_addr->head.len_lw = sizeof(*set_ip_addr) >> NFP_FL_LW_SIZ; break; case offsetof(struct iphdr, ttl): ttl_word_mask = (struct ipv4_ttl_word *)&mask; ttl_word = (struct ipv4_ttl_word *)&exact; if (ttl_word_mask->protocol || ttl_word_mask->check) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid pedit IPv4 ttl action"); return -EOPNOTSUPP; } set_ip_ttl_tos->ipv4_ttl_mask |= ttl_word_mask->ttl; set_ip_ttl_tos->ipv4_ttl &= ~ttl_word_mask->ttl; set_ip_ttl_tos->ipv4_ttl |= ttl_word->ttl & ttl_word_mask->ttl; set_ip_ttl_tos->head.jump_id = NFP_FL_ACTION_OPCODE_SET_IPV4_TTL_TOS; set_ip_ttl_tos->head.len_lw = sizeof(*set_ip_ttl_tos) >> NFP_FL_LW_SIZ; break; case round_down(offsetof(struct iphdr, tos), 4): tos_word_mask = (struct iphdr *)&mask; tos_word = (struct iphdr *)&exact; if (tos_word_mask->version || tos_word_mask->ihl || tos_word_mask->tot_len) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid pedit IPv4 tos action"); return -EOPNOTSUPP; } set_ip_ttl_tos->ipv4_tos_mask |= tos_word_mask->tos; set_ip_ttl_tos->ipv4_tos &= ~tos_word_mask->tos; set_ip_ttl_tos->ipv4_tos |= tos_word->tos & tos_word_mask->tos; set_ip_ttl_tos->head.jump_id = NFP_FL_ACTION_OPCODE_SET_IPV4_TTL_TOS; set_ip_ttl_tos->head.len_lw = sizeof(*set_ip_ttl_tos) >> NFP_FL_LW_SIZ; break; default: NL_SET_ERR_MSG_MOD(extack, "unsupported offload: pedit on unsupported section of IPv4 header"); return -EOPNOTSUPP; } return 0; } static void nfp_fl_set_ip6_helper(int opcode_tag, u8 word, __be32 exact, __be32 mask, struct nfp_fl_set_ipv6_addr *ip6) { ip6->ipv6[word].mask |= mask; ip6->ipv6[word].exact &= ~mask; ip6->ipv6[word].exact |= exact & mask; ip6->reserved = cpu_to_be16(0); ip6->head.jump_id = opcode_tag; ip6->head.len_lw = sizeof(*ip6) >> NFP_FL_LW_SIZ; } struct ipv6_hop_limit_word { __be16 payload_len; u8 nexthdr; u8 hop_limit; }; static int nfp_fl_set_ip6_hop_limit_flow_label(u32 off, __be32 exact, __be32 mask, struct nfp_fl_set_ipv6_tc_hl_fl *ip_hl_fl, struct netlink_ext_ack *extack) { struct ipv6_hop_limit_word *fl_hl_mask; struct ipv6_hop_limit_word *fl_hl; switch (off) { case offsetof(struct ipv6hdr, payload_len): fl_hl_mask = (struct ipv6_hop_limit_word *)&mask; fl_hl = (struct ipv6_hop_limit_word *)&exact; if (fl_hl_mask->nexthdr || fl_hl_mask->payload_len) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid pedit IPv6 hop limit action"); return -EOPNOTSUPP; } ip_hl_fl->ipv6_hop_limit_mask |= fl_hl_mask->hop_limit; ip_hl_fl->ipv6_hop_limit &= ~fl_hl_mask->hop_limit; ip_hl_fl->ipv6_hop_limit |= fl_hl->hop_limit & fl_hl_mask->hop_limit; break; case round_down(offsetof(struct ipv6hdr, flow_lbl), 4): if (mask & ~IPV6_FLOWINFO_MASK || exact & ~IPV6_FLOWINFO_MASK) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid pedit IPv6 flow info action"); return -EOPNOTSUPP; } ip_hl_fl->ipv6_label_mask |= mask; ip_hl_fl->ipv6_label &= ~mask; ip_hl_fl->ipv6_label |= exact & mask; break; } ip_hl_fl->head.jump_id = NFP_FL_ACTION_OPCODE_SET_IPV6_TC_HL_FL; ip_hl_fl->head.len_lw = sizeof(*ip_hl_fl) >> NFP_FL_LW_SIZ; return 0; } static int nfp_fl_set_ip6(const struct flow_action_entry *act, u32 off, struct nfp_fl_set_ipv6_addr *ip_dst, struct nfp_fl_set_ipv6_addr *ip_src, struct nfp_fl_set_ipv6_tc_hl_fl *ip_hl_fl, struct netlink_ext_ack *extack) { __be32 exact, mask; int err = 0; u8 word; /* We are expecting tcf_pedit to return a big endian value */ mask = (__force __be32)~act->mangle.mask; exact = (__force __be32)act->mangle.val; if (exact & ~mask) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid pedit IPv6 action"); return -EOPNOTSUPP; } if (off < offsetof(struct ipv6hdr, saddr)) { err = nfp_fl_set_ip6_hop_limit_flow_label(off, exact, mask, ip_hl_fl, extack); } else if (off < offsetof(struct ipv6hdr, daddr)) { word = (off - offsetof(struct ipv6hdr, saddr)) / sizeof(exact); nfp_fl_set_ip6_helper(NFP_FL_ACTION_OPCODE_SET_IPV6_SRC, word, exact, mask, ip_src); } else if (off < offsetof(struct ipv6hdr, daddr) + sizeof(struct in6_addr)) { word = (off - offsetof(struct ipv6hdr, daddr)) / sizeof(exact); nfp_fl_set_ip6_helper(NFP_FL_ACTION_OPCODE_SET_IPV6_DST, word, exact, mask, ip_dst); } else { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: pedit on unsupported section of IPv6 header"); return -EOPNOTSUPP; } return err; } static int nfp_fl_set_tport(const struct flow_action_entry *act, u32 off, struct nfp_fl_set_tport *set_tport, int opcode, struct netlink_ext_ack *extack) { u32 exact, mask; if (off) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: pedit on unsupported section of L4 header"); return -EOPNOTSUPP; } mask = ~act->mangle.mask; exact = act->mangle.val; if (exact & ~mask) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid pedit L4 action"); return -EOPNOTSUPP; } nfp_fl_set_helper32(exact, mask, set_tport->tp_port_val, set_tport->tp_port_mask); set_tport->reserved = cpu_to_be16(0); set_tport->head.jump_id = opcode; set_tport->head.len_lw = sizeof(*set_tport) >> NFP_FL_LW_SIZ; return 0; } static u32 nfp_fl_csum_l4_to_flag(u8 ip_proto) { switch (ip_proto) { case 0: /* Filter doesn't force proto match, * both TCP and UDP will be updated if encountered */ return TCA_CSUM_UPDATE_FLAG_TCP | TCA_CSUM_UPDATE_FLAG_UDP; case IPPROTO_TCP: return TCA_CSUM_UPDATE_FLAG_TCP; case IPPROTO_UDP: return TCA_CSUM_UPDATE_FLAG_UDP; default: /* All other protocols will be ignored by FW */ return 0; } } struct nfp_flower_pedit_acts { struct nfp_fl_set_ipv6_addr set_ip6_dst, set_ip6_src; struct nfp_fl_set_ipv6_tc_hl_fl set_ip6_tc_hl_fl; struct nfp_fl_set_ip4_ttl_tos set_ip_ttl_tos; struct nfp_fl_set_ip4_addrs set_ip_addr; struct nfp_fl_set_tport set_tport; struct nfp_fl_set_eth set_eth; }; static int nfp_fl_commit_mangle(struct flow_rule *rule, char *nfp_action, int *a_len, struct nfp_flower_pedit_acts *set_act, u32 *csum_updated) { size_t act_size = 0; u8 ip_proto = 0; if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_BASIC)) { struct flow_match_basic match; flow_rule_match_basic(rule, &match); ip_proto = match.key->ip_proto; } if (set_act->set_eth.head.len_lw) { act_size = sizeof(set_act->set_eth); memcpy(nfp_action, &set_act->set_eth, act_size); *a_len += act_size; } if (set_act->set_ip_ttl_tos.head.len_lw) { nfp_action += act_size; act_size = sizeof(set_act->set_ip_ttl_tos); memcpy(nfp_action, &set_act->set_ip_ttl_tos, act_size); *a_len += act_size; /* Hardware will automatically fix IPv4 and TCP/UDP checksum. */ *csum_updated |= TCA_CSUM_UPDATE_FLAG_IPV4HDR | nfp_fl_csum_l4_to_flag(ip_proto); } if (set_act->set_ip_addr.head.len_lw) { nfp_action += act_size; act_size = sizeof(set_act->set_ip_addr); memcpy(nfp_action, &set_act->set_ip_addr, act_size); *a_len += act_size; /* Hardware will automatically fix IPv4 and TCP/UDP checksum. */ *csum_updated |= TCA_CSUM_UPDATE_FLAG_IPV4HDR | nfp_fl_csum_l4_to_flag(ip_proto); } if (set_act->set_ip6_tc_hl_fl.head.len_lw) { nfp_action += act_size; act_size = sizeof(set_act->set_ip6_tc_hl_fl); memcpy(nfp_action, &set_act->set_ip6_tc_hl_fl, act_size); *a_len += act_size; /* Hardware will automatically fix TCP/UDP checksum. */ *csum_updated |= nfp_fl_csum_l4_to_flag(ip_proto); } if (set_act->set_ip6_dst.head.len_lw && set_act->set_ip6_src.head.len_lw) { /* TC compiles set src and dst IPv6 address as a single action, * the hardware requires this to be 2 separate actions. */ nfp_action += act_size; act_size = sizeof(set_act->set_ip6_src); memcpy(nfp_action, &set_act->set_ip6_src, act_size); *a_len += act_size; act_size = sizeof(set_act->set_ip6_dst); memcpy(&nfp_action[sizeof(set_act->set_ip6_src)], &set_act->set_ip6_dst, act_size); *a_len += act_size; /* Hardware will automatically fix TCP/UDP checksum. */ *csum_updated |= nfp_fl_csum_l4_to_flag(ip_proto); } else if (set_act->set_ip6_dst.head.len_lw) { nfp_action += act_size; act_size = sizeof(set_act->set_ip6_dst); memcpy(nfp_action, &set_act->set_ip6_dst, act_size); *a_len += act_size; /* Hardware will automatically fix TCP/UDP checksum. */ *csum_updated |= nfp_fl_csum_l4_to_flag(ip_proto); } else if (set_act->set_ip6_src.head.len_lw) { nfp_action += act_size; act_size = sizeof(set_act->set_ip6_src); memcpy(nfp_action, &set_act->set_ip6_src, act_size); *a_len += act_size; /* Hardware will automatically fix TCP/UDP checksum. */ *csum_updated |= nfp_fl_csum_l4_to_flag(ip_proto); } if (set_act->set_tport.head.len_lw) { nfp_action += act_size; act_size = sizeof(set_act->set_tport); memcpy(nfp_action, &set_act->set_tport, act_size); *a_len += act_size; /* Hardware will automatically fix TCP/UDP checksum. */ *csum_updated |= nfp_fl_csum_l4_to_flag(ip_proto); } return 0; } static int nfp_fl_pedit(const struct flow_action_entry *act, char *nfp_action, int *a_len, u32 *csum_updated, struct nfp_flower_pedit_acts *set_act, struct netlink_ext_ack *extack) { enum flow_action_mangle_base htype; u32 offset; htype = act->mangle.htype; offset = act->mangle.offset; switch (htype) { case TCA_PEDIT_KEY_EX_HDR_TYPE_ETH: return nfp_fl_set_eth(act, offset, &set_act->set_eth, extack); case TCA_PEDIT_KEY_EX_HDR_TYPE_IP4: return nfp_fl_set_ip4(act, offset, &set_act->set_ip_addr, &set_act->set_ip_ttl_tos, extack); case TCA_PEDIT_KEY_EX_HDR_TYPE_IP6: return nfp_fl_set_ip6(act, offset, &set_act->set_ip6_dst, &set_act->set_ip6_src, &set_act->set_ip6_tc_hl_fl, extack); case TCA_PEDIT_KEY_EX_HDR_TYPE_TCP: return nfp_fl_set_tport(act, offset, &set_act->set_tport, NFP_FL_ACTION_OPCODE_SET_TCP, extack); case TCA_PEDIT_KEY_EX_HDR_TYPE_UDP: return nfp_fl_set_tport(act, offset, &set_act->set_tport, NFP_FL_ACTION_OPCODE_SET_UDP, extack); default: NL_SET_ERR_MSG_MOD(extack, "unsupported offload: pedit on unsupported header"); return -EOPNOTSUPP; } } static struct nfp_fl_meter *nfp_fl_meter(char *act_data) { size_t act_size = sizeof(struct nfp_fl_meter); struct nfp_fl_meter *meter_act; meter_act = (struct nfp_fl_meter *)act_data; memset(meter_act, 0, act_size); meter_act->head.jump_id = NFP_FL_ACTION_OPCODE_METER; meter_act->head.len_lw = act_size >> NFP_FL_LW_SIZ; return meter_act; } static int nfp_flower_meter_action(struct nfp_app *app, const struct flow_action_entry *action, struct nfp_fl_payload *nfp_fl, int *a_len, struct net_device *netdev, struct netlink_ext_ack *extack) { struct nfp_fl_meter *fl_meter; u32 meter_id; if (*a_len + sizeof(struct nfp_fl_meter) > NFP_FL_MAX_A_SIZ) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload:meter action size beyond the allowed maximum"); return -EOPNOTSUPP; } meter_id = action->hw_index; if (!nfp_flower_search_meter_entry(app, meter_id)) { NL_SET_ERR_MSG_MOD(extack, "can not offload flow table with unsupported police action."); return -EOPNOTSUPP; } fl_meter = nfp_fl_meter(&nfp_fl->action_data[*a_len]); *a_len += sizeof(struct nfp_fl_meter); fl_meter->meter_id = cpu_to_be32(meter_id); return 0; } static int nfp_flower_output_action(struct nfp_app *app, const struct flow_action_entry *act, struct nfp_fl_payload *nfp_fl, int *a_len, struct net_device *netdev, bool last, enum nfp_flower_tun_type *tun_type, int *tun_out_cnt, int *out_cnt, u32 *csum_updated, bool pkt_host, struct netlink_ext_ack *extack) { struct nfp_flower_priv *priv = app->priv; struct nfp_fl_output *output; int err, prelag_size; /* If csum_updated has not been reset by now, it means HW will * incorrectly update csums when they are not requested. */ if (*csum_updated) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: set actions without updating checksums are not supported"); return -EOPNOTSUPP; } if (*a_len + sizeof(struct nfp_fl_output) > NFP_FL_MAX_A_SIZ) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: mirred output increases action list size beyond the allowed maximum"); return -EOPNOTSUPP; } output = (struct nfp_fl_output *)&nfp_fl->action_data[*a_len]; err = nfp_fl_output(app, output, act, nfp_fl, last, netdev, *tun_type, tun_out_cnt, pkt_host, extack); if (err) return err; *a_len += sizeof(struct nfp_fl_output); if (priv->flower_en_feats & NFP_FL_ENABLE_LAG) { /* nfp_fl_pre_lag returns -err or size of prelag action added. * This will be 0 if it is not egressing to a lag dev. */ prelag_size = nfp_fl_pre_lag(app, act, nfp_fl, *a_len, extack); if (prelag_size < 0) { return prelag_size; } else if (prelag_size > 0 && (!last || *out_cnt)) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: LAG action has to be last action in action list"); return -EOPNOTSUPP; } *a_len += prelag_size; } (*out_cnt)++; return 0; } static int nfp_flower_loop_action(struct nfp_app *app, const struct flow_action_entry *act, struct flow_rule *rule, struct nfp_fl_payload *nfp_fl, int *a_len, struct net_device *netdev, enum nfp_flower_tun_type *tun_type, int *tun_out_cnt, int *out_cnt, u32 *csum_updated, struct nfp_flower_pedit_acts *set_act, bool *pkt_host, struct netlink_ext_ack *extack, int act_idx) { struct nfp_flower_priv *fl_priv = app->priv; struct nfp_fl_pre_tunnel *pre_tun; struct nfp_fl_set_tun *set_tun; struct nfp_fl_push_vlan *psh_v; struct nfp_fl_push_mpls *psh_m; struct nfp_fl_pop_vlan *pop_v; struct nfp_fl_pop_mpls *pop_m; struct nfp_fl_set_mpls *set_m; int err; switch (act->id) { case FLOW_ACTION_DROP: nfp_fl->meta.shortcut = cpu_to_be32(NFP_FL_SC_ACT_DROP); break; case FLOW_ACTION_REDIRECT_INGRESS: case FLOW_ACTION_REDIRECT: err = nfp_flower_output_action(app, act, nfp_fl, a_len, netdev, true, tun_type, tun_out_cnt, out_cnt, csum_updated, *pkt_host, extack); if (err) return err; break; case FLOW_ACTION_MIRRED_INGRESS: case FLOW_ACTION_MIRRED: err = nfp_flower_output_action(app, act, nfp_fl, a_len, netdev, false, tun_type, tun_out_cnt, out_cnt, csum_updated, *pkt_host, extack); if (err) return err; break; case FLOW_ACTION_VLAN_POP: if (*a_len + sizeof(struct nfp_fl_pop_vlan) > NFP_FL_MAX_A_SIZ) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: maximum allowed action list size exceeded at pop vlan"); return -EOPNOTSUPP; } pop_v = (struct nfp_fl_pop_vlan *)&nfp_fl->action_data[*a_len]; nfp_fl->meta.shortcut = cpu_to_be32(NFP_FL_SC_ACT_POPV); nfp_fl_pop_vlan(pop_v); *a_len += sizeof(struct nfp_fl_pop_vlan); break; case FLOW_ACTION_VLAN_PUSH: if (*a_len + sizeof(struct nfp_fl_push_vlan) > NFP_FL_MAX_A_SIZ) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: maximum allowed action list size exceeded at push vlan"); return -EOPNOTSUPP; } psh_v = (struct nfp_fl_push_vlan *)&nfp_fl->action_data[*a_len]; nfp_fl->meta.shortcut = cpu_to_be32(NFP_FL_SC_ACT_NULL); nfp_fl_push_vlan(psh_v, act); *a_len += sizeof(struct nfp_fl_push_vlan); break; case FLOW_ACTION_TUNNEL_ENCAP: { const struct ip_tunnel_info *ip_tun = act->tunnel; *tun_type = nfp_fl_get_tun_from_act(app, rule, act, act_idx); if (*tun_type == NFP_FL_TUNNEL_NONE) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: unsupported tunnel type in action list"); return -EOPNOTSUPP; } if (ip_tun->mode & ~NFP_FL_SUPPORTED_TUNNEL_INFO_FLAGS) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: unsupported tunnel flags in action list"); return -EOPNOTSUPP; } /* Pre-tunnel action is required for tunnel encap. * This checks for next hop entries on NFP. * If none, the packet falls back before applying other actions. */ if (*a_len + sizeof(struct nfp_fl_pre_tunnel) + sizeof(struct nfp_fl_set_tun) > NFP_FL_MAX_A_SIZ) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: maximum allowed action list size exceeded at tunnel encap"); return -EOPNOTSUPP; } pre_tun = nfp_fl_pre_tunnel(nfp_fl->action_data, *a_len); nfp_fl->meta.shortcut = cpu_to_be32(NFP_FL_SC_ACT_NULL); *a_len += sizeof(struct nfp_fl_pre_tunnel); err = nfp_fl_push_geneve_options(nfp_fl, a_len, act, extack); if (err) return err; set_tun = (void *)&nfp_fl->action_data[*a_len]; err = nfp_fl_set_tun(app, set_tun, act, pre_tun, *tun_type, netdev, extack); if (err) return err; *a_len += sizeof(struct nfp_fl_set_tun); } break; case FLOW_ACTION_TUNNEL_DECAP: /* Tunnel decap is handled by default so accept action. */ return 0; case FLOW_ACTION_MANGLE: if (nfp_fl_pedit(act, &nfp_fl->action_data[*a_len], a_len, csum_updated, set_act, extack)) return -EOPNOTSUPP; break; case FLOW_ACTION_CSUM: /* csum action requests recalc of something we have not fixed */ if (act->csum_flags & ~*csum_updated) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: unsupported csum update action in action list"); return -EOPNOTSUPP; } /* If we will correctly fix the csum we can remove it from the * csum update list. Which will later be used to check support. */ *csum_updated &= ~act->csum_flags; break; case FLOW_ACTION_MPLS_PUSH: if (*a_len + sizeof(struct nfp_fl_push_mpls) > NFP_FL_MAX_A_SIZ) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: maximum allowed action list size exceeded at push MPLS"); return -EOPNOTSUPP; } psh_m = (struct nfp_fl_push_mpls *)&nfp_fl->action_data[*a_len]; nfp_fl->meta.shortcut = cpu_to_be32(NFP_FL_SC_ACT_NULL); err = nfp_fl_push_mpls(psh_m, act, extack); if (err) return err; *a_len += sizeof(struct nfp_fl_push_mpls); break; case FLOW_ACTION_MPLS_POP: if (*a_len + sizeof(struct nfp_fl_pop_mpls) > NFP_FL_MAX_A_SIZ) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: maximum allowed action list size exceeded at pop MPLS"); return -EOPNOTSUPP; } pop_m = (struct nfp_fl_pop_mpls *)&nfp_fl->action_data[*a_len]; nfp_fl->meta.shortcut = cpu_to_be32(NFP_FL_SC_ACT_NULL); nfp_fl_pop_mpls(pop_m, act); *a_len += sizeof(struct nfp_fl_pop_mpls); break; case FLOW_ACTION_MPLS_MANGLE: if (*a_len + sizeof(struct nfp_fl_set_mpls) > NFP_FL_MAX_A_SIZ) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: maximum allowed action list size exceeded at set MPLS"); return -EOPNOTSUPP; } set_m = (struct nfp_fl_set_mpls *)&nfp_fl->action_data[*a_len]; nfp_fl->meta.shortcut = cpu_to_be32(NFP_FL_SC_ACT_NULL); nfp_fl_set_mpls(set_m, act); *a_len += sizeof(struct nfp_fl_set_mpls); break; case FLOW_ACTION_PTYPE: /* TC ptype skbedit sets PACKET_HOST for ingress redirect. */ if (act->ptype != PACKET_HOST) return -EOPNOTSUPP; *pkt_host = true; break; case FLOW_ACTION_POLICE: if (!(fl_priv->flower_ext_feats & NFP_FL_FEATS_QOS_METER)) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: unsupported police action in action list"); return -EOPNOTSUPP; } err = nfp_flower_meter_action(app, act, nfp_fl, a_len, netdev, extack); if (err) return err; break; default: /* Currently we do not handle any other actions. */ NL_SET_ERR_MSG_MOD(extack, "unsupported offload: unsupported action in action list"); return -EOPNOTSUPP; } return 0; } static bool nfp_fl_check_mangle_start(struct flow_action *flow_act, int current_act_idx) { struct flow_action_entry current_act; struct flow_action_entry prev_act; current_act = flow_act->entries[current_act_idx]; if (current_act.id != FLOW_ACTION_MANGLE) return false; if (current_act_idx == 0) return true; prev_act = flow_act->entries[current_act_idx - 1]; return prev_act.id != FLOW_ACTION_MANGLE; } static bool nfp_fl_check_mangle_end(struct flow_action *flow_act, int current_act_idx) { struct flow_action_entry current_act; struct flow_action_entry next_act; current_act = flow_act->entries[current_act_idx]; if (current_act.id != FLOW_ACTION_MANGLE) return false; if (current_act_idx == flow_act->num_entries) return true; next_act = flow_act->entries[current_act_idx + 1]; return next_act.id != FLOW_ACTION_MANGLE; } int nfp_flower_compile_action(struct nfp_app *app, struct flow_rule *rule, struct net_device *netdev, struct nfp_fl_payload *nfp_flow, struct netlink_ext_ack *extack) { int act_len, act_cnt, err, tun_out_cnt, out_cnt, i; struct nfp_flower_pedit_acts set_act; enum nfp_flower_tun_type tun_type; struct flow_action_entry *act; bool pkt_host = false; u32 csum_updated = 0; if (!flow_action_hw_stats_check(&rule->action, extack, FLOW_ACTION_HW_STATS_DELAYED_BIT)) return -EOPNOTSUPP; memset(nfp_flow->action_data, 0, NFP_FL_MAX_A_SIZ); nfp_flow->meta.act_len = 0; tun_type = NFP_FL_TUNNEL_NONE; act_len = 0; act_cnt = 0; tun_out_cnt = 0; out_cnt = 0; flow_action_for_each(i, act, &rule->action) { if (nfp_fl_check_mangle_start(&rule->action, i)) memset(&set_act, 0, sizeof(set_act)); err = nfp_flower_loop_action(app, act, rule, nfp_flow, &act_len, netdev, &tun_type, &tun_out_cnt, &out_cnt, &csum_updated, &set_act, &pkt_host, extack, i); if (err) return err; act_cnt++; if (nfp_fl_check_mangle_end(&rule->action, i)) nfp_fl_commit_mangle(rule, &nfp_flow->action_data[act_len], &act_len, &set_act, &csum_updated); } /* We optimise when the action list is small, this can unfortunately * not happen once we have more than one action in the action list. */ if (act_cnt > 1) nfp_flow->meta.shortcut = cpu_to_be32(NFP_FL_SC_ACT_NULL); nfp_flow->meta.act_len = act_len; return 0; }
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