diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/action.c | 65 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/cmsg.c | 11 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/cmsg.h | 106 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/main.h | 38 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/match.c | 260 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/offload.c | 144 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c | 498 |
7 files changed, 893 insertions, 229 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/flower/action.c b/drivers/net/ethernet/netronome/nfp/flower/action.c index 1b019fdfcd97..c06600fb47ff 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/action.c +++ b/drivers/net/ethernet/netronome/nfp/flower/action.c @@ -22,8 +22,9 @@ #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 -#define NFP_FL_SUPPORTED_IPV4_UDP_TUN_FLAGS (NFP_FL_TUNNEL_CSUM | \ +#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) @@ -394,19 +395,26 @@ nfp_fl_push_geneve_options(struct nfp_fl_payload *nfp_fl, int *list_len, } static int -nfp_fl_set_ipv4_tun(struct nfp_app *app, struct nfp_fl_set_ipv4_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) +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) { - size_t act_size = sizeof(struct nfp_fl_set_ipv4_tun); 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; + if (!IS_ENABLED(CONFIG_IPV6) && ipv6) + return -EOPNOTSUPP; + + if (ipv6 && !(priv->flower_ext_feats & NFP_FL_FEATS_IPV6_TUN)) + return -EOPNOTSUPP; + BUILD_BUG_ON(NFP_FL_TUNNEL_CSUM != TUNNEL_CSUM || NFP_FL_TUNNEL_KEY != TUNNEL_KEY || NFP_FL_TUNNEL_GENEVE_OPT != TUNNEL_GENEVE_OPT); @@ -417,19 +425,35 @@ nfp_fl_set_ipv4_tun(struct nfp_app *app, struct nfp_fl_set_ipv4_tun *set_tun, return -EOPNOTSUPP; } - set_tun->head.jump_id = NFP_FL_ACTION_OPCODE_SET_IPV4_TUNNEL; + 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_IPV4_TUNNEL_TYPE, tun_type) | - FIELD_PREP(NFP_FL_IPV4_PRE_TUN_INDEX, pretun_idx); + 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); 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 = net->ipv6.devconf_all->hop_limit; + } +#endif } else { struct net *net = dev_net(netdev); struct flowi4 flow = {}; @@ -455,7 +479,7 @@ nfp_fl_set_ipv4_tun(struct nfp_app *app, struct nfp_fl_set_ipv4_tun *set_tun, set_tun->tos = ip_tun->key.tos; if (!(ip_tun->key.tun_flags & NFP_FL_TUNNEL_KEY) || - ip_tun->key.tun_flags & ~NFP_FL_SUPPORTED_IPV4_UDP_TUN_FLAGS) { + ip_tun->key.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; } @@ -467,7 +491,12 @@ nfp_fl_set_ipv4_tun(struct nfp_app *app, struct nfp_fl_set_ipv4_tun *set_tun, } /* Complete pre_tunnel action. */ - pre_tun->ipv4_dst = ip_tun->key.u.ipv4.dst; + 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; } @@ -956,8 +985,8 @@ nfp_flower_loop_action(struct nfp_app *app, const struct flow_action_entry *act, struct nfp_flower_pedit_acts *set_act, bool *pkt_host, struct netlink_ext_ack *extack, int act_idx) { - struct nfp_fl_set_ipv4_tun *set_tun; 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; @@ -1032,7 +1061,7 @@ nfp_flower_loop_action(struct nfp_app *app, const struct flow_action_entry *act, * If none, the packet falls back before applying other actions. */ if (*a_len + sizeof(struct nfp_fl_pre_tunnel) + - sizeof(struct nfp_fl_set_ipv4_tun) > NFP_FL_MAX_A_SIZ) { + 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; } @@ -1046,11 +1075,11 @@ nfp_flower_loop_action(struct nfp_app *app, const struct flow_action_entry *act, return err; set_tun = (void *)&nfp_fl->action_data[*a_len]; - err = nfp_fl_set_ipv4_tun(app, set_tun, act, pre_tun, - *tun_type, netdev, extack); + 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_ipv4_tun); + *a_len += sizeof(struct nfp_fl_set_tun); } break; case FLOW_ACTION_TUNNEL_DECAP: diff --git a/drivers/net/ethernet/netronome/nfp/flower/cmsg.c b/drivers/net/ethernet/netronome/nfp/flower/cmsg.c index 05981b54eaab..a595ddb92bff 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/cmsg.c +++ b/drivers/net/ethernet/netronome/nfp/flower/cmsg.c @@ -270,11 +270,17 @@ nfp_flower_cmsg_process_one_rx(struct nfp_app *app, struct sk_buff *skb) } goto err_default; case NFP_FLOWER_CMSG_TYPE_NO_NEIGH: - nfp_tunnel_request_route(app, skb); + nfp_tunnel_request_route_v4(app, skb); + break; + case NFP_FLOWER_CMSG_TYPE_NO_NEIGH_V6: + nfp_tunnel_request_route_v6(app, skb); break; case NFP_FLOWER_CMSG_TYPE_ACTIVE_TUNS: nfp_tunnel_keep_alive(app, skb); break; + case NFP_FLOWER_CMSG_TYPE_ACTIVE_TUNS_V6: + nfp_tunnel_keep_alive_v6(app, skb); + break; case NFP_FLOWER_CMSG_TYPE_QOS_STATS: nfp_flower_stats_rlim_reply(app, skb); break; @@ -361,7 +367,8 @@ void nfp_flower_cmsg_rx(struct nfp_app *app, struct sk_buff *skb) nfp_flower_process_mtu_ack(app, skb)) { /* Handle MTU acks outside wq to prevent RTNL conflict. */ dev_consume_skb_any(skb); - } else if (cmsg_hdr->type == NFP_FLOWER_CMSG_TYPE_TUN_NEIGH) { + } else if (cmsg_hdr->type == NFP_FLOWER_CMSG_TYPE_TUN_NEIGH || + cmsg_hdr->type == NFP_FLOWER_CMSG_TYPE_TUN_NEIGH_V6) { /* Acks from the NFP that the route is added - ignore. */ dev_consume_skb_any(skb); } else if (cmsg_hdr->type == NFP_FLOWER_CMSG_TYPE_PORT_REIFY) { diff --git a/drivers/net/ethernet/netronome/nfp/flower/cmsg.h b/drivers/net/ethernet/netronome/nfp/flower/cmsg.h index 7eb2ec8969c3..9b50d76bbc09 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/cmsg.h +++ b/drivers/net/ethernet/netronome/nfp/flower/cmsg.h @@ -26,6 +26,7 @@ #define NFP_FLOWER_LAYER2_GRE BIT(0) #define NFP_FLOWER_LAYER2_GENEVE BIT(5) #define NFP_FLOWER_LAYER2_GENEVE_OP BIT(6) +#define NFP_FLOWER_LAYER2_TUN_IPV6 BIT(7) #define NFP_FLOWER_MASK_VLAN_PRIO GENMASK(15, 13) #define NFP_FLOWER_MASK_VLAN_PRESENT BIT(12) @@ -63,6 +64,7 @@ #define NFP_FL_MAX_GENEVE_OPT_ACT 32 #define NFP_FL_MAX_GENEVE_OPT_CNT 64 #define NFP_FL_MAX_GENEVE_OPT_KEY 32 +#define NFP_FL_MAX_GENEVE_OPT_KEY_V6 8 /* Action opcodes */ #define NFP_FL_ACTION_OPCODE_OUTPUT 0 @@ -70,7 +72,7 @@ #define NFP_FL_ACTION_OPCODE_POP_VLAN 2 #define NFP_FL_ACTION_OPCODE_PUSH_MPLS 3 #define NFP_FL_ACTION_OPCODE_POP_MPLS 4 -#define NFP_FL_ACTION_OPCODE_SET_IPV4_TUNNEL 6 +#define NFP_FL_ACTION_OPCODE_SET_TUNNEL 6 #define NFP_FL_ACTION_OPCODE_SET_ETHERNET 7 #define NFP_FL_ACTION_OPCODE_SET_MPLS 8 #define NFP_FL_ACTION_OPCODE_SET_IPV4_ADDRS 9 @@ -99,8 +101,8 @@ /* Tunnel ports */ #define NFP_FL_PORT_TYPE_TUN 0x50000000 -#define NFP_FL_IPV4_TUNNEL_TYPE GENMASK(7, 4) -#define NFP_FL_IPV4_PRE_TUN_INDEX GENMASK(2, 0) +#define NFP_FL_TUNNEL_TYPE GENMASK(7, 4) +#define NFP_FL_PRE_TUN_INDEX GENMASK(2, 0) #define NFP_FLOWER_WORKQ_MAX_SKBS 30000 @@ -206,13 +208,16 @@ struct nfp_fl_pre_lag { struct nfp_fl_pre_tunnel { struct nfp_fl_act_head head; - __be16 reserved; - __be32 ipv4_dst; - /* reserved for use with IPv6 addresses */ - __be32 extra[3]; + __be16 flags; + union { + __be32 ipv4_dst; + struct in6_addr ipv6_dst; + }; }; -struct nfp_fl_set_ipv4_tun { +#define NFP_FL_PRE_TUN_IPV6 BIT(0) + +struct nfp_fl_set_tun { struct nfp_fl_act_head head; __be16 reserved; __be64 tun_id __packed; @@ -387,6 +392,11 @@ struct nfp_flower_tun_ipv4 { __be32 dst; }; +struct nfp_flower_tun_ipv6 { + struct in6_addr src; + struct in6_addr dst; +}; + struct nfp_flower_tun_ip_ext { u8 tos; u8 ttl; @@ -416,6 +426,42 @@ struct nfp_flower_ipv4_udp_tun { __be32 tun_id; }; +/* Flow Frame IPv6 UDP TUNNEL --> Tunnel details (11W/44B) + * ----------------------------------------------------------------- + * 3 2 1 + * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | ipv6_addr_src, 31 - 0 | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | ipv6_addr_src, 63 - 32 | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | ipv6_addr_src, 95 - 64 | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | ipv6_addr_src, 127 - 96 | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | ipv6_addr_dst, 31 - 0 | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | ipv6_addr_dst, 63 - 32 | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | ipv6_addr_dst, 95 - 64 | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | ipv6_addr_dst, 127 - 96 | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Reserved | tos | ttl | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Reserved | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | VNI | Reserved | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ +struct nfp_flower_ipv6_udp_tun { + struct nfp_flower_tun_ipv6 ipv6; + __be16 reserved1; + struct nfp_flower_tun_ip_ext ip_ext; + __be32 reserved2; + __be32 tun_id; +}; + /* Flow Frame GRE TUNNEL --> Tunnel details (6W/24B) * ----------------------------------------------------------------- * 3 2 1 @@ -445,6 +491,46 @@ struct nfp_flower_ipv4_gre_tun { __be32 reserved2; }; +/* Flow Frame GRE TUNNEL V6 --> Tunnel details (12W/48B) + * ----------------------------------------------------------------- + * 3 2 1 + * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | ipv6_addr_src, 31 - 0 | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | ipv6_addr_src, 63 - 32 | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | ipv6_addr_src, 95 - 64 | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | ipv6_addr_src, 127 - 96 | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | ipv6_addr_dst, 31 - 0 | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | ipv6_addr_dst, 63 - 32 | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | ipv6_addr_dst, 95 - 64 | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | ipv6_addr_dst, 127 - 96 | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | tun_flags | tos | ttl | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Reserved | Ethertype | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Key | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Reserved | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ +struct nfp_flower_ipv6_gre_tun { + struct nfp_flower_tun_ipv6 ipv6; + __be16 tun_flags; + struct nfp_flower_tun_ip_ext ip_ext; + __be16 reserved1; + __be16 ethertype; + __be32 tun_key; + __be32 reserved2; +}; + struct nfp_flower_geneve_options { u8 data[NFP_FL_MAX_GENEVE_OPT_KEY]; }; @@ -485,6 +571,10 @@ enum nfp_flower_cmsg_type_port { NFP_FLOWER_CMSG_TYPE_QOS_DEL = 19, NFP_FLOWER_CMSG_TYPE_QOS_STATS = 20, NFP_FLOWER_CMSG_TYPE_PRE_TUN_RULE = 21, + NFP_FLOWER_CMSG_TYPE_TUN_IPS_V6 = 22, + NFP_FLOWER_CMSG_TYPE_NO_NEIGH_V6 = 23, + NFP_FLOWER_CMSG_TYPE_TUN_NEIGH_V6 = 24, + NFP_FLOWER_CMSG_TYPE_ACTIVE_TUNS_V6 = 25, NFP_FLOWER_CMSG_TYPE_MAX = 32, }; diff --git a/drivers/net/ethernet/netronome/nfp/flower/main.h b/drivers/net/ethernet/netronome/nfp/flower/main.h index 31d94592a7c0..ddd7b7f5f5ab 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/main.h +++ b/drivers/net/ethernet/netronome/nfp/flower/main.h @@ -43,6 +43,7 @@ struct nfp_app; #define NFP_FL_FEATS_VF_RLIM BIT(4) #define NFP_FL_FEATS_FLOW_MOD BIT(5) #define NFP_FL_FEATS_PRE_TUN_RULES BIT(6) +#define NFP_FL_FEATS_IPV6_TUN BIT(7) #define NFP_FL_FEATS_FLOW_MERGE BIT(30) #define NFP_FL_FEATS_LAG BIT(31) @@ -62,18 +63,26 @@ struct nfp_fl_stats_id { * struct nfp_fl_tunnel_offloads - priv data for tunnel offloads * @offloaded_macs: Hashtable of the offloaded MAC addresses * @ipv4_off_list: List of IPv4 addresses to offload - * @neigh_off_list: List of neighbour offloads + * @ipv6_off_list: List of IPv6 addresses to offload + * @neigh_off_list_v4: List of IPv4 neighbour offloads + * @neigh_off_list_v6: List of IPv6 neighbour offloads * @ipv4_off_lock: Lock for the IPv4 address list - * @neigh_off_lock: Lock for the neighbour address list + * @ipv6_off_lock: Lock for the IPv6 address list + * @neigh_off_lock_v4: Lock for the IPv4 neighbour address list + * @neigh_off_lock_v6: Lock for the IPv6 neighbour address list * @mac_off_ids: IDA to manage id assignment for offloaded MACs * @neigh_nb: Notifier to monitor neighbour state */ struct nfp_fl_tunnel_offloads { struct rhashtable offloaded_macs; struct list_head ipv4_off_list; - struct list_head neigh_off_list; + struct list_head ipv6_off_list; + struct list_head neigh_off_list_v4; + struct list_head neigh_off_list_v6; struct mutex ipv4_off_lock; - spinlock_t neigh_off_lock; + struct mutex ipv6_off_lock; + spinlock_t neigh_off_lock_v4; + spinlock_t neigh_off_lock_v6; struct ida mac_off_ids; struct notifier_block neigh_nb; }; @@ -273,12 +282,25 @@ struct nfp_fl_stats { u64 used; }; +/** + * struct nfp_ipv6_addr_entry - cached IPv6 addresses + * @ipv6_addr: IP address + * @ref_count: number of rules currently using this IP + * @list: list pointer + */ +struct nfp_ipv6_addr_entry { + struct in6_addr ipv6_addr; + int ref_count; + struct list_head list; +}; + struct nfp_fl_payload { struct nfp_fl_rule_metadata meta; unsigned long tc_flower_cookie; struct rhash_head fl_node; struct rcu_head rcu; __be32 nfp_tun_ipv4_addr; + struct nfp_ipv6_addr_entry *nfp_tun_ipv6; struct net_device *ingress_dev; char *unmasked_data; char *mask_data; @@ -396,8 +418,14 @@ int nfp_tunnel_mac_event_handler(struct nfp_app *app, unsigned long event, void *ptr); void nfp_tunnel_del_ipv4_off(struct nfp_app *app, __be32 ipv4); void nfp_tunnel_add_ipv4_off(struct nfp_app *app, __be32 ipv4); -void nfp_tunnel_request_route(struct nfp_app *app, struct sk_buff *skb); +void +nfp_tunnel_put_ipv6_off(struct nfp_app *app, struct nfp_ipv6_addr_entry *entry); +struct nfp_ipv6_addr_entry * +nfp_tunnel_add_ipv6_off(struct nfp_app *app, struct in6_addr *ipv6); +void nfp_tunnel_request_route_v4(struct nfp_app *app, struct sk_buff *skb); +void nfp_tunnel_request_route_v6(struct nfp_app *app, struct sk_buff *skb); void nfp_tunnel_keep_alive(struct nfp_app *app, struct sk_buff *skb); +void nfp_tunnel_keep_alive_v6(struct nfp_app *app, struct sk_buff *skb); void nfp_flower_lag_init(struct nfp_fl_lag *lag); void nfp_flower_lag_cleanup(struct nfp_fl_lag *lag); int nfp_flower_lag_reset(struct nfp_fl_lag *lag); diff --git a/drivers/net/ethernet/netronome/nfp/flower/match.c b/drivers/net/ethernet/netronome/nfp/flower/match.c index 9cc3ba17ff69..546bc01d507d 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/match.c +++ b/drivers/net/ethernet/netronome/nfp/flower/match.c @@ -10,9 +10,8 @@ static void nfp_flower_compile_meta_tci(struct nfp_flower_meta_tci *ext, struct nfp_flower_meta_tci *msk, - struct flow_cls_offload *flow, u8 key_type) + struct flow_rule *rule, u8 key_type) { - struct flow_rule *rule = flow_cls_offload_flow_rule(flow); u16 tmp_tci; memset(ext, 0, sizeof(struct nfp_flower_meta_tci)); @@ -77,11 +76,8 @@ nfp_flower_compile_port(struct nfp_flower_in_port *frame, u32 cmsg_port, static void nfp_flower_compile_mac(struct nfp_flower_mac_mpls *ext, - struct nfp_flower_mac_mpls *msk, - struct flow_cls_offload *flow) + struct nfp_flower_mac_mpls *msk, struct flow_rule *rule) { - struct flow_rule *rule = flow_cls_offload_flow_rule(flow); - memset(ext, 0, sizeof(struct nfp_flower_mac_mpls)); memset(msk, 0, sizeof(struct nfp_flower_mac_mpls)); @@ -130,10 +126,8 @@ nfp_flower_compile_mac(struct nfp_flower_mac_mpls *ext, static void nfp_flower_compile_tport(struct nfp_flower_tp_ports *ext, struct nfp_flower_tp_ports *msk, - struct flow_cls_offload *flow) + struct flow_rule *rule) { - struct flow_rule *rule = flow_cls_offload_flow_rule(flow); - memset(ext, 0, sizeof(struct nfp_flower_tp_ports)); memset(msk, 0, sizeof(struct nfp_flower_tp_ports)); @@ -150,11 +144,8 @@ nfp_flower_compile_tport(struct nfp_flower_tp_ports *ext, static void nfp_flower_compile_ip_ext(struct nfp_flower_ip_ext *ext, - struct nfp_flower_ip_ext *msk, - struct flow_cls_offload *flow) + struct nfp_flower_ip_ext *msk, struct flow_rule *rule) { - struct flow_rule *rule = flow_cls_offload_flow_rule(flow); - if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_BASIC)) { struct flow_match_basic match; @@ -224,10 +215,8 @@ nfp_flower_compile_ip_ext(struct nfp_flower_ip_ext *ext, static void nfp_flower_compile_ipv4(struct nfp_flower_ipv4 *ext, - struct nfp_flower_ipv4 *msk, - struct flow_cls_offload *flow) + struct nfp_flower_ipv4 *msk, struct flow_rule *rule) { - struct flow_rule *rule = flow_cls_offload_flow_rule(flow); struct flow_match_ipv4_addrs match; memset(ext, 0, sizeof(struct nfp_flower_ipv4)); @@ -241,16 +230,13 @@ nfp_flower_compile_ipv4(struct nfp_flower_ipv4 *ext, msk->ipv4_dst = match.mask->dst; } - nfp_flower_compile_ip_ext(&ext->ip_ext, &msk->ip_ext, flow); + nfp_flower_compile_ip_ext(&ext->ip_ext, &msk->ip_ext, rule); } static void nfp_flower_compile_ipv6(struct nfp_flower_ipv6 *ext, - struct nfp_flower_ipv6 *msk, - struct flow_cls_offload *flow) + struct nfp_flower_ipv6 *msk, struct flow_rule *rule) { - struct flow_rule *rule = flow_cls_offload_flow_rule(flow); - memset(ext, 0, sizeof(struct nfp_flower_ipv6)); memset(msk, 0, sizeof(struct nfp_flower_ipv6)); @@ -264,16 +250,15 @@ nfp_flower_compile_ipv6(struct nfp_flower_ipv6 *ext, msk->ipv6_dst = match.mask->dst; } - nfp_flower_compile_ip_ext(&ext->ip_ext, &msk->ip_ext, flow); + nfp_flower_compile_ip_ext(&ext->ip_ext, &msk->ip_ext, rule); } static int -nfp_flower_compile_geneve_opt(void *ext, void *msk, - struct flow_cls_offload *flow) +nfp_flower_compile_geneve_opt(void *ext, void *msk, struct flow_rule *rule) { struct flow_match_enc_opts match; - flow_rule_match_enc_opts(flow->rule, &match); + flow_rule_match_enc_opts(rule, &match); memcpy(ext, match.key->data, match.key->len); memcpy(msk, match.mask->data, match.mask->len); @@ -283,10 +268,8 @@ nfp_flower_compile_geneve_opt(void *ext, void *msk, static void nfp_flower_compile_tun_ipv4_addrs(struct nfp_flower_tun_ipv4 *ext, struct nfp_flower_tun_ipv4 *msk, - struct flow_cls_offload *flow) + struct flow_rule *rule) { - struct flow_rule *rule = flow_cls_offload_flow_rule(flow); - if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS)) { struct flow_match_ipv4_addrs match; @@ -299,12 +282,26 @@ nfp_flower_compile_tun_ipv4_addrs(struct nfp_flower_tun_ipv4 *ext, } static void +nfp_flower_compile_tun_ipv6_addrs(struct nfp_flower_tun_ipv6 *ext, + struct nfp_flower_tun_ipv6 *msk, + struct flow_rule *rule) +{ + if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS)) { + struct flow_match_ipv6_addrs match; + + flow_rule_match_enc_ipv6_addrs(rule, &match); + ext->src = match.key->src; + ext->dst = match.key->dst; + msk->src = match.mask->src; + msk->dst = match.mask->dst; + } +} + +static void nfp_flower_compile_tun_ip_ext(struct nfp_flower_tun_ip_ext *ext, struct nfp_flower_tun_ip_ext *msk, - struct flow_cls_offload *flow) + struct flow_rule *rule) { - struct flow_rule *rule = flow_cls_offload_flow_rule(flow); - if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_IP)) { struct flow_match_ip match; @@ -317,57 +314,97 @@ nfp_flower_compile_tun_ip_ext(struct nfp_flower_tun_ip_ext *ext, } static void -nfp_flower_compile_ipv4_gre_tun(struct nfp_flower_ipv4_gre_tun *ext, - struct nfp_flower_ipv4_gre_tun *msk, - struct flow_cls_offload *flow) +nfp_flower_compile_tun_udp_key(__be32 *key, __be32 *key_msk, + struct flow_rule *rule) { - struct flow_rule *rule = flow_cls_offload_flow_rule(flow); - - memset(ext, 0, sizeof(struct nfp_flower_ipv4_gre_tun)); - memset(msk, 0, sizeof(struct nfp_flower_ipv4_gre_tun)); + if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_KEYID)) { + struct flow_match_enc_keyid match; + u32 vni; - /* NVGRE is the only supported GRE tunnel type */ - ext->ethertype = cpu_to_be16(ETH_P_TEB); - msk->ethertype = cpu_to_be16(~0); + flow_rule_match_enc_keyid(rule, &match); + vni = be32_to_cpu(match.key->keyid) << NFP_FL_TUN_VNI_OFFSET; + *key = cpu_to_be32(vni); + vni = be32_to_cpu(match.mask->keyid) << NFP_FL_TUN_VNI_OFFSET; + *key_msk = cpu_to_be32(vni); + } +} +static void +nfp_flower_compile_tun_gre_key(__be32 *key, __be32 *key_msk, __be16 *flags, + __be16 *flags_msk, struct flow_rule *rule) +{ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_KEYID)) { struct flow_match_enc_keyid match; flow_rule_match_enc_keyid(rule, &match); - ext->tun_key = match.key->keyid; - msk->tun_key = match.mask->keyid; + *key = match.key->keyid; + *key_msk = match.mask->keyid; - ext->tun_flags = cpu_to_be16(NFP_FL_GRE_FLAG_KEY); - msk->tun_flags = cpu_to_be16(NFP_FL_GRE_FLAG_KEY); + *flags = cpu_to_be16(NFP_FL_GRE_FLAG_KEY); + *flags_msk = cpu_to_be16(NFP_FL_GRE_FLAG_KEY); } +} + +static void +nfp_flower_compile_ipv4_gre_tun(struct nfp_flower_ipv4_gre_tun *ext, + struct nfp_flower_ipv4_gre_tun *msk, + struct flow_rule *rule) +{ + memset(ext, 0, sizeof(struct nfp_flower_ipv4_gre_tun)); + memset(msk, 0, sizeof(struct nfp_flower_ipv4_gre_tun)); + + /* NVGRE is the only supported GRE tunnel type */ + ext->ethertype = cpu_to_be16(ETH_P_TEB); + msk->ethertype = cpu_to_be16(~0); - nfp_flower_compile_tun_ipv4_addrs(&ext->ipv4, &msk->ipv4, flow); - nfp_flower_compile_tun_ip_ext(&ext->ip_ext, &msk->ip_ext, flow); + nfp_flower_compile_tun_ipv4_addrs(&ext->ipv4, &msk->ipv4, rule); + nfp_flower_compile_tun_ip_ext(&ext->ip_ext, &msk->ip_ext, rule); + nfp_flower_compile_tun_gre_key(&ext->tun_key, &msk->tun_key, + &ext->tun_flags, &msk->tun_flags, rule); } static void nfp_flower_compile_ipv4_udp_tun(struct nfp_flower_ipv4_udp_tun *ext, struct nfp_flower_ipv4_udp_tun *msk, - struct flow_cls_offload *flow) + struct flow_rule *rule) { - struct flow_rule *rule = flow_cls_offload_flow_rule(flow); - memset(ext, 0, sizeof(struct nfp_flower_ipv4_udp_tun)); memset(msk, 0, sizeof(struct nfp_flower_ipv4_udp_tun)); - if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_KEYID)) { - struct flow_match_enc_keyid match; - u32 temp_vni; + nfp_flower_compile_tun_ipv4_addrs(&ext->ipv4, &msk->ipv4, rule); + nfp_flower_compile_tun_ip_ext(&ext->ip_ext, &msk->ip_ext, rule); + nfp_flower_compile_tun_udp_key(&ext->tun_id, &msk->tun_id, rule); +} - flow_rule_match_enc_keyid(rule, &match); - temp_vni = be32_to_cpu(match.key->keyid) << NFP_FL_TUN_VNI_OFFSET; - ext->tun_id = cpu_to_be32(temp_vni); - temp_vni = be32_to_cpu(match.mask->keyid) << NFP_FL_TUN_VNI_OFFSET; - msk->tun_id = cpu_to_be32(temp_vni); - } +static void +nfp_flower_compile_ipv6_udp_tun(struct nfp_flower_ipv6_udp_tun *ext, + struct nfp_flower_ipv6_udp_tun *msk, + struct flow_rule *rule) +{ + memset(ext, 0, sizeof(struct nfp_flower_ipv6_udp_tun)); + memset(msk, 0, sizeof(struct nfp_flower_ipv6_udp_tun)); + + nfp_flower_compile_tun_ipv6_addrs(&ext->ipv6, &msk->ipv6, rule); + nfp_flower_compile_tun_ip_ext(&ext->ip_ext, &msk->ip_ext, rule); + nfp_flower_compile_tun_udp_key(&ext->tun_id, &msk->tun_id, rule); +} + +static void +nfp_flower_compile_ipv6_gre_tun(struct nfp_flower_ipv6_gre_tun *ext, + struct nfp_flower_ipv6_gre_tun *msk, + struct flow_rule *rule) +{ + memset(ext, 0, sizeof(struct nfp_flower_ipv6_gre_tun)); + memset(msk, 0, sizeof(struct nfp_flower_ipv6_gre_tun)); + + /* NVGRE is the only supported GRE tunnel type */ + ext->ethertype = cpu_to_be16(ETH_P_TEB); + msk->ethertype = cpu_to_be16(~0); - nfp_flower_compile_tun_ipv4_addrs(&ext->ipv4, &msk->ipv4, flow); - nfp_flower_compile_tun_ip_ext(&ext->ip_ext, &msk->ip_ext, flow); + nfp_flower_compile_tun_ipv6_addrs(&ext->ipv6, &msk->ipv6, rule); + nfp_flower_compile_tun_ip_ext(&ext->ip_ext, &msk->ip_ext, rule); + nfp_flower_compile_tun_gre_key(&ext->tun_key, &msk->tun_key, + &ext->tun_flags, &msk->tun_flags, rule); } int nfp_flower_compile_flow_match(struct nfp_app *app, @@ -378,6 +415,7 @@ int nfp_flower_compile_flow_match(struct nfp_app *app, enum nfp_flower_tun_type tun_type, struct netlink_ext_ack *extack) { + struct flow_rule *rule = flow_cls_offload_flow_rule(flow); u32 port_id; int err; u8 *ext; @@ -393,7 +431,7 @@ int nfp_flower_compile_flow_match(struct nfp_app *app, nfp_flower_compile_meta_tci((struct nfp_flower_meta_tci *)ext, (struct nfp_flower_meta_tci *)msk, - flow, key_ls->key_layer); + rule, key_ls->key_layer); ext += sizeof(struct nfp_flower_meta_tci); msk += sizeof(struct nfp_flower_meta_tci); @@ -425,7 +463,7 @@ int nfp_flower_compile_flow_match(struct nfp_app *app, if (NFP_FLOWER_LAYER_MAC & key_ls->key_layer) { nfp_flower_compile_mac((struct nfp_flower_mac_mpls *)ext, (struct nfp_flower_mac_mpls *)msk, - flow); + rule); ext += sizeof(struct nfp_flower_mac_mpls); msk += sizeof(struct nfp_flower_mac_mpls); } @@ -433,7 +471,7 @@ int nfp_flower_compile_flow_match(struct nfp_app *app, if (NFP_FLOWER_LAYER_TP & key_ls->key_layer) { nfp_flower_compile_tport((struct nfp_flower_tp_ports *)ext, (struct nfp_flower_tp_ports *)msk, - flow); + rule); ext += sizeof(struct nfp_flower_tp_ports); msk += sizeof(struct nfp_flower_tp_ports); } @@ -441,7 +479,7 @@ int nfp_flower_compile_flow_match(struct nfp_app *app, if (NFP_FLOWER_LAYER_IPV4 & key_ls->key_layer) { nfp_flower_compile_ipv4((struct nfp_flower_ipv4 *)ext, (struct nfp_flower_ipv4 *)msk, - flow); + rule); ext += sizeof(struct nfp_flower_ipv4); msk += sizeof(struct nfp_flower_ipv4); } @@ -449,43 +487,83 @@ int nfp_flower_compile_flow_match(struct nfp_app *app, if (NFP_FLOWER_LAYER_IPV6 & key_ls->key_layer) { nfp_flower_compile_ipv6((struct nfp_flower_ipv6 *)ext, (struct nfp_flower_ipv6 *)msk, - flow); + rule); ext += sizeof(struct nfp_flower_ipv6); msk += sizeof(struct nfp_flower_ipv6); } if (key_ls->key_layer_two & NFP_FLOWER_LAYER2_GRE) { - __be32 tun_dst; - - nfp_flower_compile_ipv4_gre_tun((void *)ext, (void *)msk, flow); - tun_dst = ((struct nfp_flower_ipv4_gre_tun *)ext)->ipv4.dst; - ext += sizeof(struct nfp_flower_ipv4_gre_tun); - msk += sizeof(struct nfp_flower_ipv4_gre_tun); - - /* Store the tunnel destination in the rule data. - * This must be present and be an exact match. - */ - nfp_flow->nfp_tun_ipv4_addr = tun_dst; - nfp_tunnel_add_ipv4_off(app, tun_dst); + if (key_ls->key_layer_two & NFP_FLOWER_LAYER2_TUN_IPV6) { + struct nfp_flower_ipv6_gre_tun *gre_match; + struct nfp_ipv6_addr_entry *entry; + struct in6_addr *dst; + + nfp_flower_compile_ipv6_gre_tun((void *)ext, + (void *)msk, rule); + gre_match = (struct nfp_flower_ipv6_gre_tun *)ext; + dst = &gre_match->ipv6.dst; + ext += sizeof(struct nfp_flower_ipv6_gre_tun); + msk += sizeof(struct nfp_flower_ipv6_gre_tun); + + entry = nfp_tunnel_add_ipv6_off(app, dst); + if (!entry) + return -EOPNOTSUPP; + + nfp_flow->nfp_tun_ipv6 = entry; + } else { + __be32 dst; + + nfp_flower_compile_ipv4_gre_tun((void *)ext, + (void *)msk, rule); + dst = ((struct nfp_flower_ipv4_gre_tun *)ext)->ipv4.dst; + ext += sizeof(struct nfp_flower_ipv4_gre_tun); + msk += sizeof(struct nfp_flower_ipv4_gre_tun); + + /* Store the tunnel destination in the rule data. + * This must be present and be an exact match. + */ + nfp_flow->nfp_tun_ipv4_addr = dst; + nfp_tunnel_add_ipv4_off(app, dst); + } } if (key_ls->key_layer & NFP_FLOWER_LAYER_VXLAN || key_ls->key_layer_two & NFP_FLOWER_LAYER2_GENEVE) { - __be32 tun_dst; - - nfp_flower_compile_ipv4_udp_tun((void *)ext, (void *)msk, flow); - tun_dst = ((struct nfp_flower_ipv4_udp_tun *)ext)->ipv4.dst; - ext += sizeof(struct nfp_flower_ipv4_udp_tun); - msk += sizeof(struct nfp_flower_ipv4_udp_tun); - - /* Store the tunnel destination in the rule data. - * This must be present and be an exact match. - */ - nfp_flow->nfp_tun_ipv4_addr = tun_dst; - nfp_tunnel_add_ipv4_off(app, tun_dst); + if (key_ls->key_layer_two & NFP_FLOWER_LAYER2_TUN_IPV6) { + struct nfp_flower_ipv6_udp_tun *udp_match; + struct nfp_ipv6_addr_entry *entry; + struct in6_addr *dst; + + nfp_flower_compile_ipv6_udp_tun((void *)ext, + (void *)msk, rule); + udp_match = (struct nfp_flower_ipv6_udp_tun *)ext; + dst = &udp_match->ipv6.dst; + ext += sizeof(struct nfp_flower_ipv6_udp_tun); + msk += sizeof(struct nfp_flower_ipv6_udp_tun); + + entry = nfp_tunnel_add_ipv6_off(app, dst); + if (!entry) + return -EOPNOTSUPP; + + nfp_flow->nfp_tun_ipv6 = entry; + } else { + __be32 dst; + + nfp_flower_compile_ipv4_udp_tun((void *)ext, + (void *)msk, rule); + dst = ((struct nfp_flower_ipv4_udp_tun *)ext)->ipv4.dst; + ext += sizeof(struct nfp_flower_ipv4_udp_tun); + msk += sizeof(struct nfp_flower_ipv4_udp_tun); + + /* Store the tunnel destination in the rule data. + * This must be present and be an exact match. + */ + nfp_flow->nfp_tun_ipv4_addr = dst; + nfp_tunnel_add_ipv4_off(app, dst); + } if (key_ls->key_layer_two & NFP_FLOWER_LAYER2_GENEVE_OP) { - err = nfp_flower_compile_geneve_opt(ext, msk, flow); + err = nfp_flower_compile_geneve_opt(ext, msk, rule); if (err) return err; } diff --git a/drivers/net/ethernet/netronome/nfp/flower/offload.c b/drivers/net/ethernet/netronome/nfp/flower/offload.c index 987ae221f6be..7ca5c1becfcf 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/offload.c +++ b/drivers/net/ethernet/netronome/nfp/flower/offload.c @@ -54,6 +54,10 @@ (BIT(FLOW_DISSECTOR_KEY_ENC_CONTROL) | \ BIT(FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS)) +#define NFP_FLOWER_WHITELIST_TUN_DISSECTOR_V6_R \ + (BIT(FLOW_DISSECTOR_KEY_ENC_CONTROL) | \ + BIT(FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS)) + #define NFP_FLOWER_MERGE_FIELDS \ (NFP_FLOWER_LAYER_PORT | \ NFP_FLOWER_LAYER_MAC | \ @@ -64,7 +68,8 @@ #define NFP_FLOWER_PRE_TUN_RULE_FIELDS \ (NFP_FLOWER_LAYER_PORT | \ NFP_FLOWER_LAYER_MAC | \ - NFP_FLOWER_LAYER_IPV4) + NFP_FLOWER_LAYER_IPV4 | \ + NFP_FLOWER_LAYER_IPV6) struct nfp_flower_merge_check { union { @@ -146,10 +151,11 @@ static bool nfp_flower_check_higher_than_l3(struct flow_cls_offload *f) static int nfp_flower_calc_opt_layer(struct flow_dissector_key_enc_opts *enc_opts, - u32 *key_layer_two, int *key_size, + u32 *key_layer_two, int *key_size, bool ipv6, struct netlink_ext_ack *extack) { - if (enc_opts->len > NFP_FL_MAX_GENEVE_OPT_KEY) { + if (enc_opts->len > NFP_FL_MAX_GENEVE_OPT_KEY || + (ipv6 && enc_opts->len > NFP_FL_MAX_GENEVE_OPT_KEY_V6)) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: geneve options exceed maximum length"); return -EOPNOTSUPP; } @@ -167,7 +173,7 @@ nfp_flower_calc_udp_tun_layer(struct flow_dissector_key_ports *enc_ports, struct flow_dissector_key_enc_opts *enc_op, u32 *key_layer_two, u8 *key_layer, int *key_size, struct nfp_flower_priv *priv, - enum nfp_flower_tun_type *tun_type, + enum nfp_flower_tun_type *tun_type, bool ipv6, struct netlink_ext_ack *extack) { int err; @@ -176,7 +182,15 @@ nfp_flower_calc_udp_tun_layer(struct flow_dissector_key_ports *enc_ports, case htons(IANA_VXLAN_UDP_PORT): *tun_type = NFP_FL_TUNNEL_VXLAN; *key_layer |= NFP_FLOWER_LAYER_VXLAN; - *key_size += sizeof(struct nfp_flower_ipv4_udp_tun); + + if (ipv6) { + *key_layer |= NFP_FLOWER_LAYER_EXT_META; + *key_size += sizeof(struct nfp_flower_ext_meta); + *key_layer_two |= NFP_FLOWER_LAYER2_TUN_IPV6; + *key_size += sizeof(struct nfp_flower_ipv6_udp_tun); + } else { + *key_size += sizeof(struct nfp_flower_ipv4_udp_tun); + } if (enc_op) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: encap options not supported on vxlan tunnels"); @@ -192,7 +206,13 @@ nfp_flower_calc_udp_tun_layer(struct flow_dissector_key_ports *enc_ports, *key_layer |= NFP_FLOWER_LAYER_EXT_META; *key_size += sizeof(struct nfp_flower_ext_meta); *key_layer_two |= NFP_FLOWER_LAYER2_GENEVE; - *key_size += sizeof(struct nfp_flower_ipv4_udp_tun); + + if (ipv6) { + *key_layer_two |= NFP_FLOWER_LAYER2_TUN_IPV6; + *key_size += sizeof(struct nfp_flower_ipv6_udp_tun); + } else { + *key_size += sizeof(struct nfp_flower_ipv4_udp_tun); + } if (!enc_op) break; @@ -200,8 +220,8 @@ nfp_flower_calc_udp_tun_layer(struct flow_dissector_key_ports *enc_ports, NL_SET_ERR_MSG_MOD(extack, "unsupported offload: loaded firmware does not support geneve option offload"); return -EOPNOTSUPP; } - err = nfp_flower_calc_opt_layer(enc_op, key_layer_two, - key_size, extack); + err = nfp_flower_calc_opt_layer(enc_op, key_layer_two, key_size, + ipv6, extack); if (err) return err; break; @@ -237,6 +257,8 @@ nfp_flower_calculate_key_layers(struct nfp_app *app, /* If any tun dissector is used then the required set must be used. */ if (dissector->used_keys & NFP_FLOWER_WHITELIST_TUN_DISSECTOR && + (dissector->used_keys & NFP_FLOWER_WHITELIST_TUN_DISSECTOR_V6_R) + != NFP_FLOWER_WHITELIST_TUN_DISSECTOR_V6_R && (dissector->used_keys & NFP_FLOWER_WHITELIST_TUN_DISSECTOR_R) != NFP_FLOWER_WHITELIST_TUN_DISSECTOR_R) { NL_SET_ERR_MSG_MOD(extack, "unsupported offload: tunnel match not supported"); @@ -268,8 +290,10 @@ nfp_flower_calculate_key_layers(struct nfp_app *app, if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_CONTROL)) { struct flow_match_enc_opts enc_op = { NULL, NULL }; struct flow_match_ipv4_addrs ipv4_addrs; + struct flow_match_ipv6_addrs ipv6_addrs; struct flow_match_control enc_ctl; struct flow_match_ports enc_ports; + bool ipv6_tun = false; flow_rule_match_enc_control(rule, &enc_ctl); @@ -277,38 +301,62 @@ nfp_flower_calculate_key_layers(struct nfp_app *app, NL_SET_ERR_MSG_MOD(extack, "unsupported offload: wildcarded protocols on tunnels are not supported"); return -EOPNOTSUPP; } - if (enc_ctl.key->addr_type != FLOW_DISSECTOR_KEY_IPV4_ADDRS) { - NL_SET_ERR_MSG_MOD(extack, "unsupported offload: only IPv4 tunnels are supported"); + + ipv6_tun = enc_ctl.key->addr_type == + FLOW_DISSECTOR_KEY_IPV6_ADDRS; + if (ipv6_tun && + !(priv->flower_ext_feats & NFP_FL_FEATS_IPV6_TUN)) { + NL_SET_ERR_MSG_MOD(extack, "unsupported offload: firmware does not support IPv6 tunnels"); return -EOPNOTSUPP; } - /* These fields are already verified as used. */ - flow_rule_match_enc_ipv4_addrs(rule, &ipv4_addrs); - if (ipv4_addrs.mask->dst != cpu_to_be32(~0)) { - NL_SET_ERR_MSG_MOD(extack, "unsupported offload: only an exact match IPv4 destination address is supported"); + if (!ipv6_tun && + enc_ctl.key->addr_type != FLOW_DISSECTOR_KEY_IPV4_ADDRS) { + NL_SET_ERR_MSG_MOD(extack, "unsupported offload: tunnel address type not IPv4 or IPv6"); return -EOPNOTSUPP; } + if (ipv6_tun) { + flow_rule_match_enc_ipv6_addrs(rule, &ipv6_addrs); + if (memchr_inv(&ipv6_addrs.mask->dst, 0xff, + sizeof(ipv6_addrs.mask->dst))) { + NL_SET_ERR_MSG_MOD(extack, "unsupported offload: only an exact match IPv6 destination address is supported"); + return -EOPNOTSUPP; + } + } else { + flow_rule_match_enc_ipv4_addrs(rule, &ipv4_addrs); + if (ipv4_addrs.mask->dst != cpu_to_be32(~0)) { + NL_SET_ERR_MSG_MOD(extack, "unsupported offload: only an exact match IPv4 destination address is supported"); + return -EOPNOTSUPP; + } + } + if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_OPTS)) flow_rule_match_enc_opts(rule, &enc_op); - if (!flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_PORTS)) { /* check if GRE, which has no enc_ports */ - if (netif_is_gretap(netdev)) { - *tun_type = NFP_FL_TUNNEL_GRE; - key_layer |= NFP_FLOWER_LAYER_EXT_META; - key_size += sizeof(struct nfp_flower_ext_meta); - key_layer_two |= NFP_FLOWER_LAYER2_GRE; - key_size += - sizeof(struct nfp_flower_ipv4_gre_tun); + if (!netif_is_gretap(netdev)) { + NL_SET_ERR_MSG_MOD(extack, "unsupported offload: an exact match on L4 destination port is required for non-GRE tunnels"); + return -EOPNOTSUPP; + } - if (enc_op.key) { - NL_SET_ERR_MSG_MOD(extack, "unsupported offload: encap options not supported on GRE tunnels"); - return -EOPNOTSUPP; - } + *tun_type = NFP_FL_TUNNEL_GRE; + key_layer |= NFP_FLOWER_LAYER_EXT_META; + key_size += sizeof(struct nfp_flower_ext_meta); + key_layer_two |= NFP_FLOWER_LAYER2_GRE; + + if (ipv6_tun) { + key_layer_two |= NFP_FLOWER_LAYER2_TUN_IPV6; + key_size += + sizeof(struct nfp_flower_ipv6_udp_tun); } else { - NL_SET_ERR_MSG_MOD(extack, "unsupported offload: an exact match on L4 destination port is required for non-GRE tunnels"); + key_size += + sizeof(struct nfp_flower_ipv4_udp_tun); + } + + if (enc_op.key) { + NL_SET_ERR_MSG_MOD(extack, "unsupported offload: encap options not supported on GRE tunnels"); return -EOPNOTSUPP; } } else { @@ -323,7 +371,8 @@ nfp_flower_calculate_key_layers(struct nfp_app *app, &key_layer_two, &key_layer, &key_size, priv, - tun_type, extack); + tun_type, ipv6_tun, + extack); if (err) return err; @@ -491,6 +540,7 @@ nfp_flower_allocate_new(struct nfp_fl_key_ls *key_layer) goto err_free_mask; flow_pay->nfp_tun_ipv4_addr = 0; + flow_pay->nfp_tun_ipv6 = NULL; flow_pay->meta.flags = 0; INIT_LIST_HEAD(&flow_pay->linked_flows); flow_pay->in_hw = false; @@ -517,10 +567,12 @@ nfp_flower_update_merge_with_actions(struct nfp_fl_payload *flow, struct nfp_fl_set_ip4_addrs *ipv4_add; struct nfp_fl_set_ipv6_addr *ipv6_add; struct nfp_fl_push_vlan *push_vlan; + struct nfp_fl_pre_tunnel *pre_tun; struct nfp_fl_set_tport *tport; struct nfp_fl_set_eth *eth; struct nfp_fl_act_head *a; unsigned int act_off = 0; + bool ipv6_tun = false; u8 act_id = 0; u8 *ports; int i; @@ -542,14 +594,18 @@ nfp_flower_update_merge_with_actions(struct nfp_fl_payload *flow, case NFP_FL_ACTION_OPCODE_POP_VLAN: merge->tci = cpu_to_be16(0); break; - case NFP_FL_ACTION_OPCODE_SET_IPV4_TUNNEL: + case NFP_FL_ACTION_OPCODE_SET_TUNNEL: /* New tunnel header means l2 to l4 can be matched. */ eth_broadcast_addr(&merge->l2.mac_dst[0]); eth_broadcast_addr(&merge->l2.mac_src[0]); memset(&merge->l4, 0xff, sizeof(struct nfp_flower_tp_ports)); - memset(&merge->ipv4, 0xff, - sizeof(struct nfp_flower_ipv4)); + if (ipv6_tun) + memset(&merge->ipv6, 0xff, + sizeof(struct nfp_flower_ipv6)); + else + memset(&merge->ipv4, 0xff, + sizeof(struct nfp_flower_ipv4)); break; case NFP_FL_ACTION_OPCODE_SET_ETHERNET: eth = (struct nfp_fl_set_eth *)a; @@ -597,6 +653,10 @@ nfp_flower_update_merge_with_actions(struct nfp_fl_payload *flow, ports[i] |= tport->tp_port_mask[i]; break; case NFP_FL_ACTION_OPCODE_PRE_TUNNEL: + pre_tun = (struct nfp_fl_pre_tunnel *)a; + ipv6_tun = be16_to_cpu(pre_tun->flags) & + NFP_FL_PRE_TUN_IPV6; + break; case NFP_FL_ACTION_OPCODE_PRE_LAG: case NFP_FL_ACTION_OPCODE_PUSH_GENEVE: break; @@ -765,15 +825,15 @@ nfp_fl_verify_post_tun_acts(char *acts, int len, struct nfp_fl_push_vlan **vlan) static int nfp_fl_push_vlan_after_tun(char *acts, int len, struct nfp_fl_push_vlan *vlan) { - struct nfp_fl_set_ipv4_tun *tun; + struct nfp_fl_set_tun *tun; struct nfp_fl_act_head *a; unsigned int act_off = 0; while (act_off < len) { a = (struct nfp_fl_act_head *)&acts[act_off]; - if (a->jump_id == NFP_FL_ACTION_OPCODE_SET_IPV4_TUNNEL) { - tun = (struct nfp_fl_set_ipv4_tun *)a; + if (a->jump_id == NFP_FL_ACTION_OPCODE_SET_TUNNEL) { + tun = (struct nfp_fl_set_tun *)a; tun->outer_vlan_tpid = vlan->vlan_tpid; tun->outer_vlan_tci = vlan->vlan_tci; @@ -1058,15 +1118,22 @@ nfp_flower_validate_pre_tun_rule(struct nfp_app *app, return -EOPNOTSUPP; } - if (key_layer & NFP_FLOWER_LAYER_IPV4) { + if (key_layer & NFP_FLOWER_LAYER_IPV4 || + key_layer & NFP_FLOWER_LAYER_IPV6) { + /* Flags and proto fields have same offset in IPv4 and IPv6. */ int ip_flags = offsetof(struct nfp_flower_ipv4, ip_ext.flags); int ip_proto = offsetof(struct nfp_flower_ipv4, ip_ext.proto); + int size; int i; + size = key_layer & NFP_FLOWER_LAYER_IPV4 ? + sizeof(struct nfp_flower_ipv4) : + sizeof(struct nfp_flower_ipv6); + mask += sizeof(struct nfp_flower_mac_mpls); /* Ensure proto and flags are the only IP layer fields. */ - for (i = 0; i < sizeof(struct nfp_flower_ipv4); i++) + for (i = 0; i < size; i++) if (mask[i] && i != ip_flags && i != ip_proto) { NL_SET_ERR_MSG_MOD(extack, "unsupported pre-tunnel rule: only flags and proto can be matched in ip header"); return -EOPNOTSUPP; @@ -1195,6 +1262,8 @@ err_remove_rhash: err_release_metadata: nfp_modify_flow_metadata(app, flow_pay); err_destroy_flow: + if (flow_pay->nfp_tun_ipv6) + nfp_tunnel_put_ipv6_off(app, flow_pay->nfp_tun_ipv6); kfree(flow_pay->action_data); kfree(flow_pay->mask_data); kfree(flow_pay->unmasked_data); @@ -1311,6 +1380,9 @@ nfp_flower_del_offload(struct nfp_app *app, struct net_device *netdev, if (nfp_flow->nfp_tun_ipv4_addr) nfp_tunnel_del_ipv4_off(app, nfp_flow->nfp_tun_ipv4_addr); + if (nfp_flow->nfp_tun_ipv6) + nfp_tunnel_put_ipv6_off(app, nfp_flow->nfp_tun_ipv6); + if (!nfp_flow->in_hw) { err = 0; goto err_free_merge_flow; diff --git a/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c b/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c index 2600ce476d6b..2df3deedf9fd 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c +++ b/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c @@ -55,6 +55,25 @@ struct nfp_tun_active_tuns { }; /** + * struct nfp_tun_active_tuns_v6 - periodic message of active IPv6 tunnels + * @seq: sequence number of the message + * @count: number of tunnels report in message + * @flags: options part of the request + * @tun_info.ipv6: dest IPv6 address of active route + * @tun_info.egress_port: port the encapsulated packet egressed + * @tun_info: tunnels that have sent traffic in reported period + */ +struct nfp_tun_active_tuns_v6 { + __be32 seq; + __be32 count; + __be32 flags; + struct route_ip_info_v6 { + struct in6_addr ipv6; + __be32 egress_port; + } tun_info[]; +}; + +/** * struct nfp_tun_neigh - neighbour/route entry on the NFP * @dst_ipv4: destination IPv4 address * @src_ipv4: source IPv4 address @@ -71,6 +90,22 @@ struct nfp_tun_neigh { }; /** + * struct nfp_tun_neigh_v6 - neighbour/route entry on the NFP + * @dst_ipv6: destination IPv6 address + * @src_ipv6: source IPv6 address + * @dst_addr: destination MAC address + * @src_addr: source MAC address + * @port_id: NFP port to output packet on - associated with source IPv6 + */ +struct nfp_tun_neigh_v6 { + struct in6_addr dst_ipv6; + struct in6_addr src_ipv6; + u8 dst_addr[ETH_ALEN]; + u8 src_addr[ETH_ALEN]; + __be32 port_id; +}; + +/** * struct nfp_tun_req_route_ipv4 - NFP requests a route/neighbour lookup * @ingress_port: ingress port of packet that signalled request * @ipv4_addr: destination ipv4 address for route @@ -83,13 +118,23 @@ struct nfp_tun_req_route_ipv4 { }; /** - * struct nfp_ipv4_route_entry - routes that are offloaded to the NFP - * @ipv4_addr: destination of route + * struct nfp_tun_req_route_ipv6 - NFP requests an IPv6 route/neighbour lookup + * @ingress_port: ingress port of packet that signalled request + * @ipv6_addr: destination ipv6 address for route + */ +struct nfp_tun_req_route_ipv6 { + __be32 ingress_port; + struct in6_addr ipv6_addr; +}; + +/** + * struct nfp_offloaded_route - routes that are offloaded to the NFP * @list: list pointer + * @ip_add: destination of route - can be IPv4 or IPv6 */ -struct nfp_ipv4_route_entry { - __be32 ipv4_addr; +struct nfp_offloaded_route { struct list_head list; + u8 ip_add[]; }; #define NFP_FL_IPV4_ADDRS_MAX 32 @@ -116,6 +161,18 @@ struct nfp_ipv4_addr_entry { struct list_head list; }; +#define NFP_FL_IPV6_ADDRS_MAX 4 + +/** + * struct nfp_tun_ipv6_addr - set the IP address list on the NFP + * @count: number of IPs populated in the array + * @ipv6_addr: array of IPV6_ADDRS_MAX 128 bit IPv6 addresses + */ +struct nfp_tun_ipv6_addr { + __be32 count; + struct in6_addr ipv6_addr[NFP_FL_IPV6_ADDRS_MAX]; +}; + #define NFP_TUN_MAC_OFFLOAD_DEL_FLAG 0x2 /** @@ -206,6 +263,49 @@ void nfp_tunnel_keep_alive(struct nfp_app *app, struct sk_buff *skb) rcu_read_unlock(); } +void nfp_tunnel_keep_alive_v6(struct nfp_app *app, struct sk_buff *skb) +{ +#if IS_ENABLED(CONFIG_IPV6) + struct nfp_tun_active_tuns_v6 *payload; + struct net_device *netdev; + int count, i, pay_len; + struct neighbour *n; + void *ipv6_add; + u32 port; + + payload = nfp_flower_cmsg_get_data(skb); + count = be32_to_cpu(payload->count); + if (count > NFP_FL_IPV6_ADDRS_MAX) { + nfp_flower_cmsg_warn(app, "IPv6 tunnel keep-alive request exceeds max routes.\n"); + return; + } + + pay_len = nfp_flower_cmsg_get_data_len(skb); + if (pay_len != struct_size(payload, tun_info, count)) { + nfp_flower_cmsg_warn(app, "Corruption in tunnel keep-alive message.\n"); + return; + } + + rcu_read_lock(); + for (i = 0; i < count; i++) { + ipv6_add = &payload->tun_info[i].ipv6; + port = be32_to_cpu(payload->tun_info[i].egress_port); + netdev = nfp_app_dev_get(app, port, NULL); + if (!netdev) + continue; + + n = neigh_lookup(&nd_tbl, ipv6_add, netdev); + if (!n) + continue; + + /* Update the used timestamp of neighbour */ + neigh_event_send(n, NULL); + neigh_release(n); + } + rcu_read_unlock(); +#endif +} + static int nfp_flower_xmit_tun_conf(struct nfp_app *app, u8 mtype, u16 plen, void *pdata, gfp_t flag) @@ -224,71 +324,126 @@ nfp_flower_xmit_tun_conf(struct nfp_app *app, u8 mtype, u16 plen, void *pdata, return 0; } -static bool nfp_tun_has_route(struct nfp_app *app, __be32 ipv4_addr) +static bool +__nfp_tun_has_route(struct list_head *route_list, spinlock_t *list_lock, + void *add, int add_len) { - struct nfp_flower_priv *priv = app->priv; - struct nfp_ipv4_route_entry *entry; - struct list_head *ptr, *storage; + struct nfp_offloaded_route *entry; - spin_lock_bh(&priv->tun.neigh_off_lock); - list_for_each_safe(ptr, storage, &priv->tun.neigh_off_list) { - entry = list_entry(ptr, struct nfp_ipv4_route_entry, list); - if (entry->ipv4_addr == ipv4_addr) { - spin_unlock_bh(&priv->tun.neigh_off_lock); + spin_lock_bh(list_lock); + list_for_each_entry(entry, route_list, list) + if (!memcmp(entry->ip_add, add, add_len)) { + spin_unlock_bh(list_lock); return true; } - } - spin_unlock_bh(&priv->tun.neigh_off_lock); + spin_unlock_bh(list_lock); return false; } -static void nfp_tun_add_route_to_cache(struct nfp_app *app, __be32 ipv4_addr) +static int +__nfp_tun_add_route_to_cache(struct list_head *route_list, + spinlock_t *list_lock, void *add, int add_len) { - struct nfp_flower_priv *priv = app->priv; - struct nfp_ipv4_route_entry *entry; - struct list_head *ptr, *storage; + struct nfp_offloaded_route *entry; - spin_lock_bh(&priv->tun.neigh_off_lock); - list_for_each_safe(ptr, storage, &priv->tun.neigh_off_list) { - entry = list_entry(ptr, struct nfp_ipv4_route_entry, list); - if (entry->ipv4_addr == ipv4_addr) { - spin_unlock_bh(&priv->tun.neigh_off_lock); - return; + spin_lock_bh(list_lock); + list_for_each_entry(entry, route_list, list) + if (!memcmp(entry->ip_add, add, add_len)) { + spin_unlock_bh(list_lock); + return 0; } - } - entry = kmalloc(sizeof(*entry), GFP_ATOMIC); + + entry = kmalloc(sizeof(*entry) + add_len, GFP_ATOMIC); if (!entry) { - spin_unlock_bh(&priv->tun.neigh_off_lock); - nfp_flower_cmsg_warn(app, "Mem error when storing new route.\n"); - return; + spin_unlock_bh(list_lock); + return -ENOMEM; } - entry->ipv4_addr = ipv4_addr; - list_add_tail(&entry->list, &priv->tun.neigh_off_list); - spin_unlock_bh(&priv->tun.neigh_off_lock); + memcpy(entry->ip_add, add, add_len); + list_add_tail(&entry->list, route_list); + spin_unlock_bh(list_lock); + + return 0; } -static void nfp_tun_del_route_from_cache(struct nfp_app *app, __be32 ipv4_addr) +static void +__nfp_tun_del_route_from_cache(struct list_head *route_list, + spinlock_t *list_lock, void *add, int add_len) { - struct nfp_flower_priv *priv = app->priv; - struct nfp_ipv4_route_entry *entry; - struct list_head *ptr, *storage; + struct nfp_offloaded_route *entry; - spin_lock_bh(&priv->tun.neigh_off_lock); - list_for_each_safe(ptr, storage, &priv->tun.neigh_off_list) { - entry = list_entry(ptr, struct nfp_ipv4_route_entry, list); - if (entry->ipv4_addr == ipv4_addr) { + spin_lock_bh(list_lock); + list_for_each_entry(entry, route_list, list) + if (!memcmp(entry->ip_add, add, add_len)) { list_del(&entry->list); kfree(entry); break; } - } - spin_unlock_bh(&priv->tun.neigh_off_lock); + spin_unlock_bh(list_lock); +} + +static bool nfp_tun_has_route_v4(struct nfp_app *app, __be32 *ipv4_addr) +{ + struct nfp_flower_priv *priv = app->priv; + + return __nfp_tun_has_route(&priv->tun.neigh_off_list_v4, + &priv->tun.neigh_off_lock_v4, ipv4_addr, + sizeof(*ipv4_addr)); +} + +static bool +nfp_tun_has_route_v6(struct nfp_app *app, struct in6_addr *ipv6_addr) +{ + struct nfp_flower_priv *priv = app->priv; + + return __nfp_tun_has_route(&priv->tun.neigh_off_list_v6, + &priv->tun.neigh_off_lock_v6, ipv6_addr, + sizeof(*ipv6_addr)); +} + +static void +nfp_tun_add_route_to_cache_v4(struct nfp_app *app, __be32 *ipv4_addr) +{ + struct nfp_flower_priv *priv = app->priv; + + __nfp_tun_add_route_to_cache(&priv->tun.neigh_off_list_v4, + &priv->tun.neigh_off_lock_v4, ipv4_addr, + sizeof(*ipv4_addr)); +} + +static void +nfp_tun_add_route_to_cache_v6(struct nfp_app *app, struct in6_addr *ipv6_addr) +{ + struct nfp_flower_priv *priv = app->priv; + + __nfp_tun_add_route_to_cache(&priv->tun.neigh_off_list_v6, + &priv->tun.neigh_off_lock_v6, ipv6_addr, + sizeof(*ipv6_addr)); } static void -nfp_tun_write_neigh(struct net_device *netdev, struct nfp_app *app, - struct flowi4 *flow, struct neighbour *neigh, gfp_t flag) +nfp_tun_del_route_from_cache_v4(struct nfp_app *app, __be32 *ipv4_addr) +{ + struct nfp_flower_priv *priv = app->priv; + + __nfp_tun_del_route_from_cache(&priv->tun.neigh_off_list_v4, + &priv->tun.neigh_off_lock_v4, ipv4_addr, + sizeof(*ipv4_addr)); +} + +static void +nfp_tun_del_route_from_cache_v6(struct nfp_app *app, struct in6_addr *ipv6_addr) +{ + struct nfp_flower_priv *priv = app->priv; + + __nfp_tun_del_route_from_cache(&priv->tun.neigh_off_list_v6, + &priv->tun.neigh_off_lock_v6, ipv6_addr, + sizeof(*ipv6_addr)); +} + +static void +nfp_tun_write_neigh_v4(struct net_device *netdev, struct nfp_app *app, + struct flowi4 *flow, struct neighbour *neigh, gfp_t flag) { struct nfp_tun_neigh payload; u32 port_id; @@ -302,7 +457,7 @@ nfp_tun_write_neigh(struct net_device *netdev, struct nfp_app *app, /* If entry has expired send dst IP with all other fields 0. */ if (!(neigh->nud_state & NUD_VALID) || neigh->dead) { - nfp_tun_del_route_from_cache(app, payload.dst_ipv4); + nfp_tun_del_route_from_cache_v4(app, &payload.dst_ipv4); /* Trigger ARP to verify invalid neighbour state. */ neigh_event_send(neigh, NULL); goto send_msg; @@ -314,7 +469,7 @@ nfp_tun_write_neigh(struct net_device *netdev, struct nfp_app *app, neigh_ha_snapshot(payload.dst_addr, neigh, netdev); payload.port_id = cpu_to_be32(port_id); /* Add destination of new route to NFP cache. */ - nfp_tun_add_route_to_cache(app, payload.dst_ipv4); + nfp_tun_add_route_to_cache_v4(app, &payload.dst_ipv4); send_msg: nfp_flower_xmit_tun_conf(app, NFP_FLOWER_CMSG_TYPE_TUN_NEIGH, @@ -322,16 +477,54 @@ send_msg: (unsigned char *)&payload, flag); } +static void +nfp_tun_write_neigh_v6(struct net_device *netdev, struct nfp_app *app, + struct flowi6 *flow, struct neighbour *neigh, gfp_t flag) +{ + struct nfp_tun_neigh_v6 payload; + u32 port_id; + + port_id = nfp_flower_get_port_id_from_netdev(app, netdev); + if (!port_id) + return; + + memset(&payload, 0, sizeof(struct nfp_tun_neigh_v6)); + payload.dst_ipv6 = flow->daddr; + + /* If entry has expired send dst IP with all other fields 0. */ + if (!(neigh->nud_state & NUD_VALID) || neigh->dead) { + nfp_tun_del_route_from_cache_v6(app, &payload.dst_ipv6); + /* Trigger probe to verify invalid neighbour state. */ + neigh_event_send(neigh, NULL); + goto send_msg; + } + + /* Have a valid neighbour so populate rest of entry. */ + payload.src_ipv6 = flow->saddr; + ether_addr_copy(payload.src_addr, netdev->dev_addr); + neigh_ha_snapshot(payload.dst_addr, neigh, netdev); + payload.port_id = cpu_to_be32(port_id); + /* Add destination of new route to NFP cache. */ + nfp_tun_add_route_to_cache_v6(app, &payload.dst_ipv6); + +send_msg: + nfp_flower_xmit_tun_conf(app, NFP_FLOWER_CMSG_TYPE_TUN_NEIGH_V6, + sizeof(struct nfp_tun_neigh_v6), + (unsigned char *)&payload, flag); +} + static int nfp_tun_neigh_event_handler(struct notifier_block *nb, unsigned long event, void *ptr) { struct nfp_flower_priv *app_priv; struct netevent_redirect *redir; - struct flowi4 flow = {}; + struct flowi4 flow4 = {}; + struct flowi6 flow6 = {}; struct neighbour *n; struct nfp_app *app; struct rtable *rt; + bool ipv6 = false; int err; switch (event) { @@ -346,7 +539,13 @@ nfp_tun_neigh_event_handler(struct notifier_block *nb, unsigned long event, return NOTIFY_DONE; } - flow.daddr = *(__be32 *)n->primary_key; + if (n->tbl->family == AF_INET6) + ipv6 = true; + + if (ipv6) + flow6.daddr = *(struct in6_addr *)n->primary_key; + else + flow4.daddr = *(__be32 *)n->primary_key; app_priv = container_of(nb, struct nfp_flower_priv, tun.neigh_nb); app = app_priv->app; @@ -356,28 +555,46 @@ nfp_tun_neigh_event_handler(struct notifier_block *nb, unsigned long event, return NOTIFY_DONE; /* Only concerned with changes to routes already added to NFP. */ - if (!nfp_tun_has_route(app, flow.daddr)) + if ((ipv6 && !nfp_tun_has_route_v6(app, &flow6.daddr)) || + (!ipv6 && !nfp_tun_has_route_v4(app, &flow4.daddr))) return NOTIFY_DONE; #if IS_ENABLED(CONFIG_INET) - /* Do a route lookup to populate flow data. */ - rt = ip_route_output_key(dev_net(n->dev), &flow); - err = PTR_ERR_OR_ZERO(rt); - if (err) + if (ipv6) { +#if IS_ENABLED(CONFIG_IPV6) + struct dst_entry *dst; + + dst = ipv6_stub->ipv6_dst_lookup_flow(dev_net(n->dev), NULL, + &flow6, NULL); + if (IS_ERR(dst)) + return NOTIFY_DONE; + + dst_release(dst); + flow6.flowi6_proto = IPPROTO_UDP; + nfp_tun_write_neigh_v6(n->dev, app, &flow6, n, GFP_ATOMIC); +#else return NOTIFY_DONE; +#endif /* CONFIG_IPV6 */ + } else { + /* Do a route lookup to populate flow data. */ + rt = ip_route_output_key(dev_net(n->dev), &flow4); + err = PTR_ERR_OR_ZERO(rt); + if (err) + return NOTIFY_DONE; - ip_rt_put(rt); + ip_rt_put(rt); + + flow4.flowi4_proto = IPPROTO_UDP; + nfp_tun_write_neigh_v4(n->dev, app, &flow4, n, GFP_ATOMIC); + } #else return NOTIFY_DONE; -#endif - - flow.flowi4_proto = IPPROTO_UDP; - nfp_tun_write_neigh(n->dev, app, &flow, n, GFP_ATOMIC); +#endif /* CONFIG_INET */ return NOTIFY_OK; } -void nfp_tunnel_request_route(struct nfp_app *app, struct sk_buff *skb) +void nfp_tunnel_request_route_v4(struct nfp_app *app, struct sk_buff *skb) { struct nfp_tun_req_route_ipv4 *payload; struct net_device *netdev; @@ -411,7 +628,7 @@ void nfp_tunnel_request_route(struct nfp_app *app, struct sk_buff *skb) ip_rt_put(rt); if (!n) goto fail_rcu_unlock; - nfp_tun_write_neigh(n->dev, app, &flow, n, GFP_ATOMIC); + nfp_tun_write_neigh_v4(n->dev, app, &flow, n, GFP_ATOMIC); neigh_release(n); rcu_read_unlock(); return; @@ -421,6 +638,48 @@ fail_rcu_unlock: nfp_flower_cmsg_warn(app, "Requested route not found.\n"); } +void nfp_tunnel_request_route_v6(struct nfp_app *app, struct sk_buff *skb) +{ + struct nfp_tun_req_route_ipv6 *payload; + struct net_device *netdev; + struct flowi6 flow = {}; + struct dst_entry *dst; + struct neighbour *n; + + payload = nfp_flower_cmsg_get_data(skb); + + rcu_read_lock(); + netdev = nfp_app_dev_get(app, be32_to_cpu(payload->ingress_port), NULL); + if (!netdev) + goto fail_rcu_unlock; + + flow.daddr = payload->ipv6_addr; + flow.flowi6_proto = IPPROTO_UDP; + +#if IS_ENABLED(CONFIG_INET) && IS_ENABLED(CONFIG_IPV6) + dst = ipv6_stub->ipv6_dst_lookup_flow(dev_net(netdev), NULL, &flow, + NULL); + if (IS_ERR(dst)) + goto fail_rcu_unlock; +#else + goto fail_rcu_unlock; +#endif + + n = dst_neigh_lookup(dst, &flow.daddr); + dst_release(dst); + if (!n) + goto fail_rcu_unlock; + + nfp_tun_write_neigh_v6(n->dev, app, &flow, n, GFP_ATOMIC); + neigh_release(n); + rcu_read_unlock(); + return; + +fail_rcu_unlock: + rcu_read_unlock(); + nfp_flower_cmsg_warn(app, "Requested IPv6 route not found.\n"); +} + static void nfp_tun_write_ipv4_list(struct nfp_app *app) { struct nfp_flower_priv *priv = app->priv; @@ -502,6 +761,78 @@ void nfp_tunnel_del_ipv4_off(struct nfp_app *app, __be32 ipv4) nfp_tun_write_ipv4_list(app); } +static void nfp_tun_write_ipv6_list(struct nfp_app *app) +{ + struct nfp_flower_priv *priv = app->priv; + struct nfp_ipv6_addr_entry *entry; + struct nfp_tun_ipv6_addr payload; + int count = 0; + + memset(&payload, 0, sizeof(struct nfp_tun_ipv6_addr)); + mutex_lock(&priv->tun.ipv6_off_lock); + list_for_each_entry(entry, &priv->tun.ipv6_off_list, list) { + if (count >= NFP_FL_IPV6_ADDRS_MAX) { + nfp_flower_cmsg_warn(app, "Too many IPv6 tunnel endpoint addresses, some cannot be offloaded.\n"); + break; + } + payload.ipv6_addr[count++] = entry->ipv6_addr; + } + mutex_unlock(&priv->tun.ipv6_off_lock); + payload.count = cpu_to_be32(count); + + nfp_flower_xmit_tun_conf(app, NFP_FLOWER_CMSG_TYPE_TUN_IPS_V6, + sizeof(struct nfp_tun_ipv6_addr), + &payload, GFP_KERNEL); +} + +struct nfp_ipv6_addr_entry * +nfp_tunnel_add_ipv6_off(struct nfp_app *app, struct in6_addr *ipv6) +{ + struct nfp_flower_priv *priv = app->priv; + struct nfp_ipv6_addr_entry *entry; + + mutex_lock(&priv->tun.ipv6_off_lock); + list_for_each_entry(entry, &priv->tun.ipv6_off_list, list) + if (!memcmp(&entry->ipv6_addr, ipv6, sizeof(*ipv6))) { + entry->ref_count++; + mutex_unlock(&priv->tun.ipv6_off_lock); + return entry; + } + + entry = kmalloc(sizeof(*entry), GFP_KERNEL); + if (!entry) { + mutex_unlock(&priv->tun.ipv6_off_lock); + nfp_flower_cmsg_warn(app, "Mem error when offloading IP address.\n"); + return NULL; + } + entry->ipv6_addr = *ipv6; + entry->ref_count = 1; + list_add_tail(&entry->list, &priv->tun.ipv6_off_list); + mutex_unlock(&priv->tun.ipv6_off_lock); + + nfp_tun_write_ipv6_list(app); + + return entry; +} + +void +nfp_tunnel_put_ipv6_off(struct nfp_app *app, struct nfp_ipv6_addr_entry *entry) +{ + struct nfp_flower_priv *priv = app->priv; + bool freed = false; + + mutex_lock(&priv->tun.ipv6_off_lock); + if (!--entry->ref_count) { + list_del(&entry->list); + kfree(entry); + freed = true; + } + mutex_unlock(&priv->tun.ipv6_off_lock); + + if (freed) + nfp_tun_write_ipv6_list(app); +} + static int __nfp_tunnel_offload_mac(struct nfp_app *app, u8 *mac, u16 idx, bool del) { @@ -1013,13 +1344,17 @@ int nfp_tunnel_config_start(struct nfp_app *app) ida_init(&priv->tun.mac_off_ids); - /* Initialise priv data for IPv4 offloading. */ + /* Initialise priv data for IPv4/v6 offloading. */ mutex_init(&priv->tun.ipv4_off_lock); INIT_LIST_HEAD(&priv->tun.ipv4_off_list); + mutex_init(&priv->tun.ipv6_off_lock); + INIT_LIST_HEAD(&priv->tun.ipv6_off_list); /* Initialise priv data for neighbour offloading. */ - spin_lock_init(&priv->tun.neigh_off_lock); - INIT_LIST_HEAD(&priv->tun.neigh_off_list); + spin_lock_init(&priv->tun.neigh_off_lock_v4); + INIT_LIST_HEAD(&priv->tun.neigh_off_list_v4); + spin_lock_init(&priv->tun.neigh_off_lock_v6); + INIT_LIST_HEAD(&priv->tun.neigh_off_list_v6); priv->tun.neigh_nb.notifier_call = nfp_tun_neigh_event_handler; err = register_netevent_notifier(&priv->tun.neigh_nb); @@ -1034,9 +1369,11 @@ int nfp_tunnel_config_start(struct nfp_app *app) void nfp_tunnel_config_stop(struct nfp_app *app) { + struct nfp_offloaded_route *route_entry, *temp; struct nfp_flower_priv *priv = app->priv; - struct nfp_ipv4_route_entry *route_entry; struct nfp_ipv4_addr_entry *ip_entry; + struct nfp_tun_neigh_v6 ipv6_route; + struct nfp_tun_neigh ipv4_route; struct list_head *ptr, *storage; unregister_netevent_notifier(&priv->tun.neigh_nb); @@ -1050,12 +1387,35 @@ void nfp_tunnel_config_stop(struct nfp_app *app) kfree(ip_entry); } - /* Free any memory that may be occupied by the route list. */ - list_for_each_safe(ptr, storage, &priv->tun.neigh_off_list) { - route_entry = list_entry(ptr, struct nfp_ipv4_route_entry, - list); + mutex_destroy(&priv->tun.ipv6_off_lock); + + /* Free memory in the route list and remove entries from fw cache. */ + list_for_each_entry_safe(route_entry, temp, + &priv->tun.neigh_off_list_v4, list) { + memset(&ipv4_route, 0, sizeof(ipv4_route)); + memcpy(&ipv4_route.dst_ipv4, &route_entry->ip_add, + sizeof(ipv4_route.dst_ipv4)); list_del(&route_entry->list); kfree(route_entry); + + nfp_flower_xmit_tun_conf(app, NFP_FLOWER_CMSG_TYPE_TUN_NEIGH, + sizeof(struct nfp_tun_neigh), + (unsigned char *)&ipv4_route, + GFP_KERNEL); + } + + list_for_each_entry_safe(route_entry, temp, + &priv->tun.neigh_off_list_v6, list) { + memset(&ipv6_route, 0, sizeof(ipv6_route)); + memcpy(&ipv6_route.dst_ipv6, &route_entry->ip_add, + sizeof(ipv6_route.dst_ipv6)); + list_del(&route_entry->list); + kfree(route_entry); + + nfp_flower_xmit_tun_conf(app, NFP_FLOWER_CMSG_TYPE_TUN_NEIGH_V6, + sizeof(struct nfp_tun_neigh), + (unsigned char *)&ipv6_route, + GFP_KERNEL); } /* Destroy rhash. Entries should be cleaned on netdev notifier unreg. */ |