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path: root/src/vnet/ip/protocols.def
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/*
 * Copyright (c) 2015 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/* Emacs editing mode -*-C-*-

From http://www.iana.org/assignments/protocol-numbers

PROTOCOL NUMBERS

(last updated 18 October 2004)

In the Internet Protocol version 4 (IPv4) [RFC791] there is a field,
called "Protocol", to identify the next level protocol.  This is an 8
bit field.  In Internet Protocol version 6 (IPv6) [RFC1883] this field
is called the "Next Header" field.
*/
ip_protocol (0, IP6_HOP_BY_HOP_OPTIONS)
ip_protocol (1, ICMP)
ip_protocol (2, IGMP)
ip_protocol (3, GGP)
ip_protocol (4, IP_IN_IP)
ip_protocol (5, ST)
ip_protocol (6, TCP)
ip_protocol (7, CBT)
ip_protocol (8, EGP)
ip_protocol (9, IGP)
ip_protocol (10, BBN_RCC_MON)
ip_protocol (11, NVP_II)
ip_protocol (12, PUP)
ip_protocol (13, ARGUS)
ip_protocol (14, EMCON)
ip_protocol (15, XNET)
ip_protocol (16, CHAOS)
ip_protocol (17, UDP)
ip_protocol (18, MUX)
ip_protocol (19, DCN_MEAS)
ip_protocol (20, HMP)
ip_protocol (21, PRM)
ip_protocol (22, XNS_IDP)
ip_protocol (23, TRUNK_1)
ip_protocol (24, TRUNK_2)
ip_protocol (25, LEAF_1)
ip_protocol (26, LEAF_2)
ip_protocol (27, RDP)
ip_protocol (28, IRTP)
ip_protocol (29, ISO_TP4)
ip_protocol (30, NETBLT)
ip_protocol (31, MFE_NSP)
ip_protocol (32, MERIT_INP)
ip_protocol (33, SEP)
ip_protocol (34, 3PC)
ip_protocol (35, IDPR)
ip_protocol (36, XTP)
ip_protocol (37, DDP)
ip_protocol (38, IDPR_CMTP)
ip_protocol (39, TP)
ip_protocol (40, IL)
ip_protocol (41, IPV6)
ip_protocol (42, SDRP)
ip_protocol (43, IPV6_ROUTE)
ip_protocol (44, IPV6_FRAGMENTATION)
ip_protocol (45, IDRP)
ip_protocol (46, RSVP)
ip_protocol (47, GRE)
ip_protocol (48, MHRP)
ip_protocol (49, BNA)
ip_protocol (50, IPSEC_ESP)
ip_protocol (51, IPSEC_AH)
ip_protocol (52, I_NLSP)
ip_protocol (53, SWIPE)
ip_protocol (54, NARP)
ip_protocol (55, MOBILE)
ip_protocol (56, TLSP)
ip_protocol (57, SKIP)
ip_protocol (58, ICMP6)
ip_protocol (59, IP6_NONXT)
ip_protocol (60, IP6_DESTINATION_OPTIONS)
ip_protocol (62, CFTP)
ip_protocol (64, SAT_EXPAK)
ip_protocol (65, KRYPTOLAN)
ip_protocol (66, RVD)
ip_protocol (67, IPPC)
ip_protocol (69, SAT_MON)
ip_protocol (70, VISA)
ip_protocol (71, IPCV)
ip_protocol (72, CPNX)
ip_protocol (73, CPHB)
ip_protocol (74, WSN)
ip_protocol (75, PVP)
ip_protocol (76, BR_SAT_MON)
ip_protocol (77, SUN_ND)
ip_protocol (78, WB_MON)
ip_protocol (79, WB_EXPAK)
ip_protocol (80, ISO_IP)
ip_protocol (81, VMTP)
ip_protocol (82, SECURE_VMTP)
ip_protocol (83, VINES)
ip_protocol (84, TTP)
ip_protocol (85, NSFNET_IGP)
ip_protocol (86, DGP)
ip_protocol (87, TCF)
ip_protocol (88, EIGRP)
ip_protocol (89, OSPF)
ip_protocol (90, SPRITE_RPC)
ip_protocol (91, LARP)
ip_protocol (92, MTP)
ip_protocol (93, AX)
ip_protocol (94, IPIP)
ip_protocol (95, MICP)
ip_protocol (96, SCC_SP)
ip_protocol (97, ETHERIP)
ip_protocol (98, ENCAP)
ip_protocol (100, GMTP)
ip_protocol (101, IFMP)
ip_protocol (102, PNNI)
ip_protocol (103, PIM)
ip_protocol (104, ARIS)
ip_protocol (105, SCPS)
ip_protocol (106, QNX)
ip_protocol (107, A)
ip_protocol (108, IPCOMP)
ip_protocol (109, SNP)
ip_protocol (110, COMPAQ_PEER)
ip_protocol (111, IPX_IN_IP)
ip_protocol (112, VRRP)
ip_protocol (113, PGM)
ip_protocol (115, L2TP)
ip_protocol (116, DDX)
ip_protocol (117, IATP)
ip_protocol (118, STP)
ip_protocol (119, SRP)
ip_protocol (120, UTI)
ip_protocol (121, SMP)
ip_protocol (122, SM)
ip_protocol (123, PTP)
ip_protocol (124, ISIS)
ip_protocol (125, FIRE)
ip_protocol (126, CRTP)
ip_protocol (127, CRUDP)
ip_protocol (128, SSCOPMCE)
ip_protocol (129, IPLT)
ip_protocol (130, SPS)
ip_protocol (131, PIPE)
ip_protocol (132, SCTP)
ip_protocol (133, FC)
ip_protocol (134, RSVP_E2E_IGNORE)
ip_protocol (135, MOBILITY)
ip_protocol (136, UDP_LITE)
ip_protocol (137, MPLS_IN_IP)
ip_protocol (255, RESERVED)
(f->type == VNET_FLOW_TYPE_IP6)) /* check if flow is L4 type */ #define FLOW_IS_L4_TYPE(f) \ ((f->type == VNET_FLOW_TYPE_IP4_N_TUPLE) || \ (f->type == VNET_FLOW_TYPE_IP6_N_TUPLE) || \ (f->type == VNET_FLOW_TYPE_IP4_N_TUPLE_TAGGED) || \ (f->type == VNET_FLOW_TYPE_IP6_N_TUPLE_TAGGED)) /* check if flow is L4 tunnel type */ #define FLOW_IS_L4_TUNNEL_TYPE(f) \ ((f->type == VNET_FLOW_TYPE_IP4_VXLAN) || \ (f->type == VNET_FLOW_TYPE_IP6_VXLAN) || \ (f->type == VNET_FLOW_TYPE_IP4_GTPC) || \ (f->type == VNET_FLOW_TYPE_IP4_GTPU)) /* constant structs */ static const struct rte_flow_attr ingress = {.ingress = 1 }; static inline bool mac_address_is_all_zero (const u8 addr[6]) { int i = 0; for (i = 0; i < 6; i++) if (addr[i] != 0) return false; return true; } static inline void dpdk_flow_convert_rss_types (u64 type, u64 * dpdk_rss_type) { #define BIT_IS_SET(v, b) \ ((v) & (u64)1<<(b)) *dpdk_rss_type = 0; #undef _ #define _(n, f, s) \ if (n != -1 && BIT_IS_SET(type, n)) \ *dpdk_rss_type |= f; foreach_dpdk_rss_hf #undef _ return; } /** Maximum number of queue indices in struct rte_flow_action_rss. */ #define ACTION_RSS_QUEUE_NUM 128 static inline void dpdk_flow_convert_rss_queues (u32 queue_index, u32 queue_num, struct rte_flow_action_rss *rss) { u16 *queues = clib_mem_alloc (sizeof (*queues) * ACTION_RSS_QUEUE_NUM); int i; for (i = 0; i < queue_num; i++) queues[i] = queue_index++; rss->queue_num = queue_num; rss->queue = queues; return; } static inline enum rte_eth_hash_function dpdk_flow_convert_rss_func (vnet_rss_function_t func) { enum rte_eth_hash_function rss_func; switch (func) { case VNET_RSS_FUNC_DEFAULT: rss_func = RTE_ETH_HASH_FUNCTION_DEFAULT; break; case VNET_RSS_FUNC_TOEPLITZ: rss_func = RTE_ETH_HASH_FUNCTION_TOEPLITZ; break; case VNET_RSS_FUNC_SIMPLE_XOR: rss_func = RTE_ETH_HASH_FUNCTION_SIMPLE_XOR; break; case VNET_RSS_FUNC_SYMMETRIC_TOEPLITZ: rss_func = RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ; break; default: rss_func = RTE_ETH_HASH_FUNCTION_MAX; break; } return rss_func; } static int dpdk_flow_add (dpdk_device_t * xd, vnet_flow_t * f, dpdk_flow_entry_t * fe) { struct rte_flow_item_eth eth[2] = { }; struct rte_flow_item_ipv4 ip4[2] = { }; struct rte_flow_item_ipv6 ip6[2] = { }; struct rte_flow_item_udp udp[2] = { }; struct rte_flow_item_tcp tcp[2] = { }; struct rte_flow_item_gtp gtp[2] = { }; struct rte_flow_item_l2tpv3oip l2tp[2] = { }; struct rte_flow_item_esp esp[2] = { }; struct rte_flow_item_ah ah[2] = { }; struct rte_flow_item_raw generic[2] = {}; struct rte_flow_action_mark mark = { 0 }; struct rte_flow_action_queue queue = { 0 }; struct rte_flow_action_rss rss = { 0 }; struct rte_flow_item *item, *items = 0; struct rte_flow_action *action, *actions = 0; bool fate = false; enum { vxlan_hdr_sz = sizeof (vxlan_header_t), raw_sz = sizeof (struct rte_flow_item_raw) }; union { struct rte_flow_item_raw item; u8 val[raw_sz + vxlan_hdr_sz]; } raw[2]; u16 src_port = 0, dst_port = 0, src_port_mask = 0, dst_port_mask = 0; u8 protocol = IP_PROTOCOL_RESERVED; int rv = 0; /* Handle generic flow first */ if (f->type == VNET_FLOW_TYPE_GENERIC) { generic[0].pattern = f->generic.pattern.spec; generic[1].pattern = f->generic.pattern.mask; vec_add2 (items, item, 1); item->type = RTE_FLOW_ITEM_TYPE_RAW; item->spec = generic; item->mask = generic + 1; goto pattern_end; } enum { FLOW_UNKNOWN_CLASS, FLOW_ETHERNET_CLASS, FLOW_IPV4_CLASS, FLOW_IPV6_CLASS, } flow_class = FLOW_UNKNOWN_CLASS; if (FLOW_IS_ETHERNET_CLASS (f)) flow_class = FLOW_ETHERNET_CLASS; else if (FLOW_IS_IPV4_CLASS (f)) flow_class = FLOW_IPV4_CLASS; else if (FLOW_IS_IPV6_CLASS (f)) flow_class = FLOW_IPV6_CLASS; else return VNET_FLOW_ERROR_NOT_SUPPORTED; if (f->actions & (~xd->supported_flow_actions)) return VNET_FLOW_ERROR_NOT_SUPPORTED; /* Match items */ /* Layer 2, Ethernet */ vec_add2 (items, item, 1); item->type = RTE_FLOW_ITEM_TYPE_ETH; if (flow_class == FLOW_ETHERNET_CLASS) { vnet_flow_ethernet_t *te = &f->ethernet; clib_memset (&eth[0], 0, sizeof (eth[0])); clib_memset (&eth[1], 0, sizeof (eth[1])); /* check if SMAC/DMAC/Ether_type assigned */ if (!mac_address_is_all_zero (te->eth_hdr.dst_address)) { clib_memcpy_fast (&eth[0].dst, &te->eth_hdr.dst_address, sizeof (eth[0].dst)); clib_memset (&eth[1].dst, 0xFF, sizeof (eth[1].dst)); } if (!mac_address_is_all_zero (te->eth_hdr.src_address)) { clib_memcpy_fast (&eth[0].src, &te->eth_hdr.src_address, sizeof (eth[0].src)); clib_memset (&eth[1].src, 0xFF, sizeof (eth[1].src)); } if (te->eth_hdr.type) { eth[0].type = clib_host_to_net_u16 (te->eth_hdr.type); eth[1].type = clib_host_to_net_u16 (0xFFFF); } item->spec = eth; item->mask = eth + 1; } else { item->spec = NULL; item->mask = NULL; } /* currently only single empty vlan tag is supported */ if (FLOW_HAS_VLAN_TAG (f)) { vec_add2 (items, item, 1); item->type = RTE_FLOW_ITEM_TYPE_VLAN; item->spec = NULL; item->mask = NULL; } if (FLOW_IS_ETHERNET_CLASS (f)) goto pattern_end; /* Layer 3, IP */ vec_add2 (items, item, 1); if (flow_class == FLOW_IPV4_CLASS) { vnet_flow_ip4_t *ip4_ptr = &f->ip4; item->type = RTE_FLOW_ITEM_TYPE_IPV4; if ((!ip4_ptr->src_addr.mask.as_u32) && (!ip4_ptr->dst_addr.mask.as_u32) && (!ip4_ptr->protocol.mask)) { item->spec = NULL; item->mask = NULL; } else { ip4[0].hdr.src_addr = ip4_ptr->src_addr.addr.as_u32; ip4[1].hdr.src_addr = ip4_ptr->src_addr.mask.as_u32; ip4[0].hdr.dst_addr = ip4_ptr->dst_addr.addr.as_u32; ip4[1].hdr.dst_addr = ip4_ptr->dst_addr.mask.as_u32; ip4[0].hdr.next_proto_id = ip4_ptr->protocol.prot; ip4[1].hdr.next_proto_id = ip4_ptr->protocol.mask; item->spec = ip4; item->mask = ip4 + 1; } if (FLOW_IS_L4_TYPE (f) || FLOW_IS_L4_TUNNEL_TYPE (f)) { vnet_flow_ip4_n_tuple_t *ip4_n_ptr = &f->ip4_n_tuple; src_port = ip4_n_ptr->src_port.port; dst_port = ip4_n_ptr->dst_port.port; src_port_mask = ip4_n_ptr->src_port.mask; dst_port_mask = ip4_n_ptr->dst_port.mask; } protocol = ip4_ptr->protocol.prot; } else if (flow_class == FLOW_IPV6_CLASS) { vnet_flow_ip6_t *ip6_ptr = &f->ip6; item->type = RTE_FLOW_ITEM_TYPE_IPV6; if ((ip6_ptr->src_addr.mask.as_u64[0] == 0) && (ip6_ptr->src_addr.mask.as_u64[1] == 0) && (!ip6_ptr->protocol.mask)) { item->spec = NULL; item->mask = NULL; } else { clib_memcpy (ip6[0].hdr.src_addr, &ip6_ptr->src_addr.addr, ARRAY_LEN (ip6_ptr->src_addr.addr.as_u8)); clib_memcpy (ip6[1].hdr.src_addr, &ip6_ptr->src_addr.mask, ARRAY_LEN (ip6_ptr->src_addr.mask.as_u8)); clib_memcpy (ip6[0].hdr.dst_addr, &ip6_ptr->dst_addr.addr, ARRAY_LEN (ip6_ptr->dst_addr.addr.as_u8)); clib_memcpy (ip6[1].hdr.dst_addr, &ip6_ptr->dst_addr.mask, ARRAY_LEN (ip6_ptr->dst_addr.mask.as_u8)); ip6[0].hdr.proto = ip6_ptr->protocol.prot; ip6[1].hdr.proto = ip6_ptr->protocol.mask; item->spec = ip6; item->mask = ip6 + 1; } if (FLOW_IS_L4_TYPE (f) || FLOW_IS_L4_TUNNEL_TYPE (f)) { vnet_flow_ip6_n_tuple_t *ip6_n_ptr = &f->ip6_n_tuple; src_port = ip6_n_ptr->src_port.port; dst_port = ip6_n_ptr->dst_port.port; src_port_mask = ip6_n_ptr->src_port.mask; dst_port_mask = ip6_n_ptr->dst_port.mask; } protocol = ip6_ptr->protocol.prot; } if (FLOW_IS_L3_TYPE (f)) goto pattern_end; /* Layer 3, IP */ vec_add2 (items, item, 1); switch (protocol) { case IP_PROTOCOL_L2TP: item->type = RTE_FLOW_ITEM_TYPE_L2TPV3OIP; l2tp[0].session_id = clib_host_to_net_u32 (f->ip4_l2tpv3oip.session_id); l2tp[1].session_id = ~0; item->spec = l2tp; item->mask = l2tp + 1; break; case IP_PROTOCOL_IPSEC_ESP: item->type = RTE_FLOW_ITEM_TYPE_ESP; esp[0].hdr.spi = clib_host_to_net_u32 (f->ip4_ipsec_esp.spi); esp[1].hdr.spi = ~0; item->spec = esp; item->mask = esp + 1; break; case IP_PROTOCOL_IPSEC_AH: item->type = RTE_FLOW_ITEM_TYPE_AH; ah[0].spi = clib_host_to_net_u32 (f->ip4_ipsec_ah.spi); ah[1].spi = ~0; item->spec = ah; item->mask = ah + 1; break; case IP_PROTOCOL_TCP: item->type = RTE_FLOW_ITEM_TYPE_TCP; if ((src_port_mask == 0) && (dst_port_mask == 0)) { item->spec = NULL; item->mask = NULL; } else { tcp[0].hdr.src_port = clib_host_to_net_u16 (src_port); tcp[1].hdr.src_port = clib_host_to_net_u16 (src_port_mask); tcp[0].hdr.dst_port = clib_host_to_net_u16 (dst_port); tcp[1].hdr.dst_port = clib_host_to_net_u16 (dst_port_mask); item->spec = tcp; item->mask = tcp + 1; } break; case IP_PROTOCOL_UDP: item->type = RTE_FLOW_ITEM_TYPE_UDP; if ((src_port_mask == 0) && (dst_port_mask == 0)) { item->spec = NULL; item->mask = NULL; } else { udp[0].hdr.src_port = clib_host_to_net_u16 (src_port); udp[1].hdr.src_port = clib_host_to_net_u16 (src_port_mask); udp[0].hdr.dst_port = clib_host_to_net_u16 (dst_port); udp[1].hdr.dst_port = clib_host_to_net_u16 (dst_port_mask); item->spec = udp; item->mask = udp + 1; } /* handle the UDP tunnels */ if (f->type == VNET_FLOW_TYPE_IP4_GTPC) { gtp[0].teid = clib_host_to_net_u32 (f->ip4_gtpc.teid); gtp[1].teid = ~0; vec_add2 (items, item, 1); item->type = RTE_FLOW_ITEM_TYPE_GTPC; item->spec = gtp; item->mask = gtp + 1; } else if (f->type == VNET_FLOW_TYPE_IP4_GTPU) { gtp[0].teid = clib_host_to_net_u32 (f->ip4_gtpu.teid); gtp[1].teid = ~0; vec_add2 (items, item, 1); item->type = RTE_FLOW_ITEM_TYPE_GTPU; item->spec = gtp; item->mask = gtp + 1; } else if (f->type == VNET_FLOW_TYPE_IP4_VXLAN) { u32 vni = f->ip4_vxlan.vni; vxlan_header_t spec_hdr = { .flags = VXLAN_FLAGS_I, .vni_reserved = clib_host_to_net_u32 (vni << 8) }; vxlan_header_t mask_hdr = { .flags = 0xff, .vni_reserved = clib_host_to_net_u32 (((u32) - 1) << 8) }; clib_memset (raw, 0, sizeof raw); raw[0].item.relative = 1; raw[0].item.length = vxlan_hdr_sz; clib_memcpy_fast (raw[0].val + raw_sz, &spec_hdr, vxlan_hdr_sz); raw[0].item.pattern = raw[0].val + raw_sz; clib_memcpy_fast (raw[1].val + raw_sz, &mask_hdr, vxlan_hdr_sz); raw[1].item.pattern = raw[1].val + raw_sz; vec_add2 (items, item, 1); item->type = RTE_FLOW_ITEM_TYPE_RAW; item->spec = raw; item->mask = raw + 1; } break; default: rv = VNET_FLOW_ERROR_NOT_SUPPORTED; goto done; } pattern_end: if ((f->actions & VNET_FLOW_ACTION_RSS) && (f->rss_types & (1ULL << VNET_FLOW_RSS_TYPES_ESP))) { vec_add2 (items, item, 1); item->type = RTE_FLOW_ITEM_TYPE_ESP; } vec_add2 (items, item, 1); item->type = RTE_FLOW_ITEM_TYPE_END; /* Actions */ /* Only one 'fate' can be assigned */ if (f->actions & VNET_FLOW_ACTION_REDIRECT_TO_QUEUE) { vec_add2 (actions, action, 1); queue.index = f->redirect_queue; action->type = RTE_FLOW_ACTION_TYPE_QUEUE; action->conf = &queue; fate = true; } if (f->actions & VNET_FLOW_ACTION_DROP) { vec_add2 (actions, action, 1); action->type = RTE_FLOW_ACTION_TYPE_DROP; if (fate == true) { rv = VNET_FLOW_ERROR_INTERNAL; goto done; } else fate = true; } if (f->actions & VNET_FLOW_ACTION_RSS) { u64 rss_type = 0; vec_add2 (actions, action, 1); action->type = RTE_FLOW_ACTION_TYPE_RSS; action->conf = &rss; /* convert types to DPDK rss bitmask */ dpdk_flow_convert_rss_types (f->rss_types, &rss_type); if (f->queue_num) /* convert rss queues to array */ dpdk_flow_convert_rss_queues (f->queue_index, f->queue_num, &rss); rss.types = rss_type; if ((rss.func = dpdk_flow_convert_rss_func (f->rss_fun)) == RTE_ETH_HASH_FUNCTION_MAX) { rv = VNET_FLOW_ERROR_NOT_SUPPORTED; goto done; } if (fate == true) { rv = VNET_FLOW_ERROR_INTERNAL; goto done; } else fate = true; } if (fate == false) { vec_add2 (actions, action, 1); action->type = RTE_FLOW_ACTION_TYPE_PASSTHRU; } if (f->actions & VNET_FLOW_ACTION_MARK) { vec_add2 (actions, action, 1); mark.id = fe->mark; action->type = RTE_FLOW_ACTION_TYPE_MARK; action->conf = &mark; } vec_add2 (actions, action, 1); action->type = RTE_FLOW_ACTION_TYPE_END; rv = rte_flow_validate (xd->device_index, &ingress, items, actions, &xd->last_flow_error); if (rv) { if (rv == -EINVAL) rv = VNET_FLOW_ERROR_NOT_SUPPORTED; else if (rv == -EEXIST) rv = VNET_FLOW_ERROR_ALREADY_EXISTS; else rv = VNET_FLOW_ERROR_INTERNAL; goto done; } fe->handle = rte_flow_create (xd->device_index, &ingress, items, actions, &xd->last_flow_error); if (!fe->handle) rv = VNET_FLOW_ERROR_NOT_SUPPORTED; done: vec_free (items); vec_free (actions); return rv; } int dpdk_flow_ops_fn (vnet_main_t * vnm, vnet_flow_dev_op_t op, u32 dev_instance, u32 flow_index, uword * private_data) { vlib_main_t *vm = vlib_get_main (); dpdk_main_t *dm = &dpdk_main; vnet_flow_t *flow = vnet_get_flow (flow_index); dpdk_device_t *xd = vec_elt_at_index (dm->devices, dev_instance); dpdk_flow_entry_t *fe; dpdk_flow_lookup_entry_t *fle = 0; int rv; /* recycle old flow lookup entries only after the main loop counter increases - i.e. previously DMA'ed packets were handled */ if (vec_len (xd->parked_lookup_indexes) > 0 && xd->parked_loop_count != vm->main_loop_count) { u32 *fl_index; vec_foreach (fl_index, xd->parked_lookup_indexes) pool_put_index (xd->flow_lookup_entries, *fl_index); vec_reset_length (xd->parked_lookup_indexes); } if (op == VNET_FLOW_DEV_OP_DEL_FLOW) { fe = vec_elt_at_index (xd->flow_entries, *private_data); if ((rv = rte_flow_destroy (xd->device_index, fe->handle, &xd->last_flow_error))) return VNET_FLOW_ERROR_INTERNAL; if (fe->mark) { /* make sure no action is taken for in-flight (marked) packets */ fle = pool_elt_at_index (xd->flow_lookup_entries, fe->mark); clib_memset (fle, -1, sizeof (*fle)); vec_add1 (xd->parked_lookup_indexes, fe->mark); xd->parked_loop_count = vm->main_loop_count; } clib_memset (fe, 0, sizeof (*fe)); pool_put (xd->flow_entries, fe); goto disable_rx_offload; } if (op != VNET_FLOW_DEV_OP_ADD_FLOW) return VNET_FLOW_ERROR_NOT_SUPPORTED; pool_get (xd->flow_entries, fe); fe->flow_index = flow->index; if (flow->actions == 0) { rv = VNET_FLOW_ERROR_NOT_SUPPORTED; goto done; } /* if we need to mark packets, assign one mark */ if (flow->actions & (VNET_FLOW_ACTION_MARK | VNET_FLOW_ACTION_REDIRECT_TO_NODE | VNET_FLOW_ACTION_BUFFER_ADVANCE)) { /* reserve slot 0 */ if (xd->flow_lookup_entries == 0) pool_get_aligned (xd->flow_lookup_entries, fle, CLIB_CACHE_LINE_BYTES); pool_get_aligned (xd->flow_lookup_entries, fle, CLIB_CACHE_LINE_BYTES); fe->mark = fle - xd->flow_lookup_entries; /* install entry in the lookup table */ clib_memset (fle, -1, sizeof (*fle)); if (flow->actions & VNET_FLOW_ACTION_MARK) fle->flow_id = flow->mark_flow_id; if (flow->actions & VNET_FLOW_ACTION_REDIRECT_TO_NODE) fle->next_index = flow->redirect_device_input_next_index; if (flow->actions & VNET_FLOW_ACTION_BUFFER_ADVANCE) fle->buffer_advance = flow->buffer_advance; } else fe->mark = 0; if ((xd->flags & DPDK_DEVICE_FLAG_RX_FLOW_OFFLOAD) == 0) { xd->flags |= DPDK_DEVICE_FLAG_RX_FLOW_OFFLOAD; dpdk_device_setup (xd); } switch (flow->type) { case VNET_FLOW_TYPE_ETHERNET: case VNET_FLOW_TYPE_IP4: case VNET_FLOW_TYPE_IP6: case VNET_FLOW_TYPE_IP4_N_TUPLE: case VNET_FLOW_TYPE_IP6_N_TUPLE: case VNET_FLOW_TYPE_IP4_VXLAN: case VNET_FLOW_TYPE_IP4_GTPC: case VNET_FLOW_TYPE_IP4_GTPU: case VNET_FLOW_TYPE_IP4_L2TPV3OIP: case VNET_FLOW_TYPE_IP4_IPSEC_ESP: case VNET_FLOW_TYPE_IP4_IPSEC_AH: case VNET_FLOW_TYPE_GENERIC: if ((rv = dpdk_flow_add (xd, flow, fe))) goto done; break; default: rv = VNET_FLOW_ERROR_NOT_SUPPORTED; goto done; } *private_data = fe - xd->flow_entries; done: if (rv) { clib_memset (fe, 0, sizeof (*fe)); pool_put (xd->flow_entries, fe); if (fle) { clib_memset (fle, -1, sizeof (*fle)); pool_put (xd->flow_lookup_entries, fle); } } disable_rx_offload: if ((xd->flags & DPDK_DEVICE_FLAG_RX_FLOW_OFFLOAD) != 0 && pool_elts (xd->flow_entries) == 0) { xd->flags &= ~DPDK_DEVICE_FLAG_RX_FLOW_OFFLOAD; dpdk_device_setup (xd); } return rv; } u8 * format_dpdk_flow (u8 * s, va_list * args) { u32 dev_instance = va_arg (*args, u32); u32 flow_index = va_arg (*args, u32); uword private_data = va_arg (*args, uword); dpdk_main_t *dm = &dpdk_main; dpdk_device_t *xd = vec_elt_at_index (dm->devices, dev_instance); dpdk_flow_entry_t *fe; if (flow_index == ~0) { s = format (s, "%-25s: %U\n", "supported flow actions", format_flow_actions, xd->supported_flow_actions); s = format (s, "%-25s: %d\n", "last DPDK error type", xd->last_flow_error.type); s = format (s, "%-25s: %s\n", "last DPDK error message", xd->last_flow_error.message ? xd->last_flow_error.message : "n/a"); return s; } if (private_data >= vec_len (xd->flow_entries)) return format (s, "unknown flow"); fe = vec_elt_at_index (xd->flow_entries, private_data); s = format (s, "mark %u", fe->mark); return s; } /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */