dpdk: fix clear hw stats - vpp - Vector Packet Processing

diff options

author	Filip Tehlar <ftehlar@cisco.com>	2019-06-04 01:22:55 +0000
committer	Damjan Marion <dmarion@me.com>	2019-06-06 12:07:09 +0000
commit	831f4200cab2b363f2a8ea340331343c14407b7d (patch)
tree	0c69ad2f1ad66cb0429dd7ca85b98eda7d07ab32 /src/plugins/dpdk/device
parent	a342da22f35676114ca928c65b0219fac8009f7a (diff)

dpdk: fix clear hw stats

.. and remove helper stat struct for keeping last cleared stats. This is not needed anymore as dpdk lib provides rte_eth_dev_reset(). Change-Id: I78076e689aac7ca70836ce688dfa8e704f64cd84 Signed-off-by: Filip Tehlar <ftehlar@cisco.com>

Diffstat (limited to 'src/plugins/dpdk/device')

-rw-r--r--

src/plugins/dpdk/device/device.c

-rw-r--r--

src/plugins/dpdk/device/dpdk.h

-rw-r--r--

src/plugins/dpdk/device/format.c

3 files changed, 3 insertions, 3 deletions

/* * 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. */ #include <vnet/vxlan/vxlan.h> #include <vnet/ip/format.h> #include <vnet/fib/fib_entry.h> #include <vnet/fib/fib_table.h> #include <vnet/dpo/receive_dpo.h> #include <vlib/vlib.h> /** * @file * @brief VXLAN. * * VXLAN provides the features needed to allow L2 bridge domains (BDs) * to span multiple servers. This is done by building an L2 overlay on * top of an L3 network underlay using VXLAN tunnels. * * This makes it possible for servers to be co-located in the same data * center or be separated geographically as long as they are reachable * through the underlay L3 network. * * You can refer to this kind of L2 overlay bridge domain as a VXLAN * (Virtual eXtensible VLAN) segment. */ vxlan_main_t vxlan_main; static u8 * format_decap_next (u8 * s, va_list * args) { u32 next_index = va_arg (*args, u32); switch (next_index) { case VXLAN_INPUT_NEXT_DROP: return format (s, "drop"); case VXLAN_INPUT_NEXT_L2_INPUT: return format (s, "l2"); default: return format (s, "index %d", next_index); } return s; } u8 * format_vxlan_tunnel (u8 * s, va_list * args) { vxlan_tunnel_t * t = va_arg (*args, vxlan_tunnel_t *); vxlan_main_t * ngm = &vxlan_main; s = format (s, "[%d] src %U dst %U vni %d sw_if_index %d ", t - ngm->tunnels, format_ip46_address, &t->src, IP46_TYPE_ANY, format_ip46_address, &t->dst, IP46_TYPE_ANY, t->vni, t->sw_if_index); if (ip46_address_is_multicast (&t->dst)) s = format (s, "mcast_sw_if_index %d ", t->mcast_sw_if_index); s = format (s, "encap_fib_index %d fib_entry_index %d decap_next %U\n", t->encap_fib_index, t->fib_entry_index, format_decap_next, t->decap_next_index); return s; } static u8 * format_vxlan_name (u8 * s, va_list * args) { u32 dev_instance = va_arg (*args, u32); return format (s, "vxlan_tunnel%d", dev_instance); } static uword dummy_interface_tx (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { clib_warning ("you shouldn't be here, leaking buffers..."); return frame->n_vectors; } static clib_error_t * vxlan_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags) { if (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) vnet_hw_interface_set_flags (vnm, hw_if_index, VNET_HW_INTERFACE_FLAG_LINK_UP); else vnet_hw_interface_set_flags (vnm, hw_if_index, 0); return /* no error */ 0; } VNET_DEVICE_CLASS (vxlan_device_class,static) = { .name = "VXLAN", .format_device_name = format_vxlan_name, .format_tx_trace = format_vxlan_encap_trace, .tx_function = dummy_interface_tx, .admin_up_down_function = vxlan_interface_admin_up_down, }; static u8 * format_vxlan_header_with_length (u8 * s, va_list * args) { u32 dev_instance = va_arg (*args, u32); s = format (s, "unimplemented dev %u", dev_instance); return s; } VNET_HW_INTERFACE_CLASS (vxlan_hw_class) = { .name = "VXLAN", .format_header = format_vxlan_header_with_length, .build_rewrite = default_build_rewrite, }; static void vxlan_tunnel_restack_dpo(vxlan_tunnel_t * t) { dpo_id_t dpo = DPO_INVALID; u32 encap_index = ip46_address_is_ip4(&t->dst) ? vxlan4_encap_node.index : vxlan6_encap_node.index; fib_forward_chain_type_t forw_type = ip46_address_is_ip4(&t->dst) ? FIB_FORW_CHAIN_TYPE_UNICAST_IP4 : FIB_FORW_CHAIN_TYPE_UNICAST_IP6; fib_entry_contribute_forwarding (t->fib_entry_index, forw_type, &dpo); dpo_stack_from_node (encap_index, &t->next_dpo, &dpo); dpo_reset(&dpo); } static vxlan_tunnel_t * vxlan_tunnel_from_fib_node (fib_node_t *node) { #if (CLIB_DEBUG > 0) ASSERT(FIB_NODE_TYPE_VXLAN_TUNNEL == node->fn_type); #endif return ((vxlan_tunnel_t*) (((char*)node) - STRUCT_OFFSET_OF(vxlan_tunnel_t, node))); } /** * Function definition to backwalk a FIB node - * Here we will restack the new dpo of VXLAN DIP to encap node. */ static fib_node_back_walk_rc_t vxlan_tunnel_back_walk (fib_node_t *node, fib_node_back_walk_ctx_t *ctx) { vxlan_tunnel_restack_dpo(vxlan_tunnel_from_fib_node(node)); return (FIB_NODE_BACK_WALK_CONTINUE); } /** * Function definition to get a FIB node from its index */ static fib_node_t* vxlan_tunnel_fib_node_get (fib_node_index_t index) { vxlan_tunnel_t * t; vxlan_main_t * vxm = &vxlan_main; t = pool_elt_at_index(vxm->tunnels, index); return (&t->node); } /** * Function definition to inform the FIB node that its last lock has gone. */ static void vxlan_tunnel_last_lock_gone (fib_node_t *node) { /* * The VXLAN tunnel is a root of the graph. As such * it never has children and thus is never locked. */ ASSERT(0); } /* * Virtual function table registered by VXLAN tunnels * for participation in the FIB object graph. */ const static fib_node_vft_t vxlan_vft = { .fnv_get = vxlan_tunnel_fib_node_get, .fnv_last_lock = vxlan_tunnel_last_lock_gone, .fnv_back_walk = vxlan_tunnel_back_walk, }; #define foreach_copy_field \ _(vni) \ _(mcast_sw_if_index) \ _(encap_fib_index) \ _(decap_next_index) \ _(src) \ _(dst) static int vxlan4_rewrite (vxlan_tunnel_t * t) { u8 *rw = 0; ip4_header_t * ip0; ip4_vxlan_header_t * h0; int len = sizeof (*h0); vec_validate_aligned (rw, len-1, CLIB_CACHE_LINE_BYTES); h0 = (ip4_vxlan_header_t *) rw; /* Fixed portion of the (outer) ip4 header */ ip0 = &h0->ip4; ip0->ip_version_and_header_length = 0x45; ip0->ttl = 254; ip0->protocol = IP_PROTOCOL_UDP; /* we fix up the ip4 header length and checksum after-the-fact */ ip0->src_address.as_u32 = t->src.ip4.as_u32; ip0->dst_address.as_u32 = t->dst.ip4.as_u32; ip0->checksum = ip4_header_checksum (ip0); /* UDP header, randomize src port on something, maybe? */ h0->udp.src_port = clib_host_to_net_u16 (4789); h0->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_vxlan); /* VXLAN header */ vnet_set_vni_and_flags(&h0->vxlan, t->vni); t->rewrite = rw; return (0); } static int vxlan6_rewrite (vxlan_tunnel_t * t) { u8 *rw = 0; ip6_header_t * ip0; ip6_vxlan_header_t * h0; int len = sizeof (*h0); vec_validate_aligned (rw, len-1, CLIB_CACHE_LINE_BYTES); h0 = (ip6_vxlan_header_t *) rw; /* Fixed portion of the (outer) ip6 header */ ip0 = &h0->ip6; ip0->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32(6 << 28); ip0->hop_limit = 255; ip0->protocol = IP_PROTOCOL_UDP; ip0->src_address.as_u64[0] = t->src.ip6.as_u64[0]; ip0->src_address.as_u64[1] = t->src.ip6.as_u64[1]; ip0->dst_address.as_u64[0] = t->dst.ip6.as_u64[0]; ip0->dst_address.as_u64[1] = t->dst.ip6.as_u64[1]; /* UDP header, randomize src port on something, maybe? */ h0->udp.src_port = clib_host_to_net_u16 (4789); h0->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_vxlan); /* VXLAN header */ vnet_set_vni_and_flags(&h0->vxlan, t->vni); t->rewrite = rw; return (0); } static int vxlan_check_decap_next(vxlan_main_t * vxm, u32 is_ip6, u32 decap_next_index) { vlib_main_t * vm = vxm->vlib_main; vlib_node_runtime_t *r; if(!is_ip6) { r = vlib_node_get_runtime (vm, vxlan4_input_node.index); if(decap_next_index >= r->n_next_nodes) return 1; } else { r = vlib_node_get_runtime (vm, vxlan6_input_node.index); if(decap_next_index >= r->n_next_nodes) return 1; } return 0; } static uword vtep_addr_ref(ip46_address_t *ip) { if (!ip46_address_is_ip4(ip)) return 1; /* always create */ uword *pvtep = hash_get (vxlan_main.vtep4, ip->ip4.as_u32); if (pvtep) return ++pvtep[0]; hash_set (vxlan_main.vtep4, ip->ip4.as_u32, 1); return 1; } static uword vtep_addr_unref(ip46_address_t *ip) { if (!ip46_address_is_ip4(ip)) return 0; /* alwways destroy */ uword *pvtep = hash_get (vxlan_main.vtep4, ip->ip4.as_u32); ASSERT(pvtep); if (!(--pvtep[0])) hash_unset (vxlan_main.vtep4, ip->ip4.as_u32); return pvtep[0]; } static mcast_remote_t * mcast_ep_get(ip46_address_t * ip) { ASSERT(ip46_address_is_multicast(ip)); uword * ep_idx = hash_get_mem (vxlan_main.mcast_ep_by_ip, ip); ASSERT(ep_idx); return pool_elt_at_index(vxlan_main.mcast_eps, *ep_idx); } static void mcast_ep_add(mcast_remote_t * new_ep) { mcast_remote_t * ep; pool_get_aligned (vxlan_main.mcast_eps, ep, CLIB_CACHE_LINE_BYTES); *ep = *new_ep; hash_set_mem (vxlan_main.mcast_ep_by_ip, &ep->ip, ep - vxlan_main.mcast_eps); } static void mcast_ep_remove(mcast_remote_t * ep) { hash_unset_mem (vxlan_main.mcast_ep_by_ip, &ep->ip); pool_put (vxlan_main.mcast_eps, ep); } static void ip46_multicast_ethernet_address(u8 * ethernet_address, ip46_address_t * ip) { if (ip46_address_is_ip4(ip)) ip4_multicast_ethernet_address(ethernet_address, &ip->ip4); else ip6_multicast_ethernet_address(ethernet_address, ip->ip6.as_u32[0]); } int vnet_vxlan_add_del_tunnel (vnet_vxlan_add_del_tunnel_args_t *a, u32 * sw_if_indexp) { vxlan_main_t * vxm = &vxlan_main; vxlan_tunnel_t *t = 0; vnet_main_t * vnm = vxm->vnet_main; uword * p; u32 hw_if_index = ~0; u32 sw_if_index = ~0; int rv; vxlan4_tunnel_key_t key4; vxlan6_tunnel_key_t key6; u32 is_ip6 = a->is_ip6; if (!is_ip6) { key4.src = a->dst.ip4.as_u32; /* decap src in key is encap dst in config */ key4.vni = clib_host_to_net_u32 (a->vni << 8); p = hash_get (vxm->vxlan4_tunnel_by_key, key4.as_u64); } else { key6.src.as_u64[0] = a->dst.ip6.as_u64[0]; key6.src.as_u64[1] = a->dst.ip6.as_u64[1]; key6.vni = clib_host_to_net_u32 (a->vni << 8); p = hash_get_mem (vxm->vxlan6_tunnel_by_key, &key6); } if (a->is_add) { l2input_main_t * l2im = &l2input_main; /* adding a tunnel: tunnel must not already exist */ if (p) return VNET_API_ERROR_TUNNEL_EXIST; /*if not set explicitly, default to l2 */ if(a->decap_next_index == ~0) a->decap_next_index = VXLAN_INPUT_NEXT_L2_INPUT; if (vxlan_check_decap_next(vxm, is_ip6, a->decap_next_index)) return VNET_API_ERROR_INVALID_DECAP_NEXT; pool_get_aligned (vxm->tunnels, t, CLIB_CACHE_LINE_BYTES); memset (t, 0, sizeof (*t)); /* copy from arg structure */ #define _(x) t->x = a->x; foreach_copy_field; #undef _ /* copy the key */ if (is_ip6) { t->key6 = clib_mem_alloc (sizeof(vxlan6_tunnel_key_t)); clib_memcpy (t->key6, &key6, sizeof(key6)); } else { t->key4 = 0; /* not yet used */ } if (!is_ip6) rv = vxlan4_rewrite (t); else rv = vxlan6_rewrite (t); if (rv) { pool_put (vxm->tunnels, t); return rv; } if (!is_ip6) hash_set (vxm->vxlan4_tunnel_by_key, key4.as_u64, t - vxm->tunnels); else hash_set_mem (vxm->vxlan6_tunnel_by_key, t->key6, t - vxm->tunnels); vnet_hw_interface_t * hi; if (vec_len (vxm->free_vxlan_tunnel_hw_if_indices) > 0) { vnet_interface_main_t * im = &vnm->interface_main; hw_if_index = vxm->free_vxlan_tunnel_hw_if_indices [vec_len (vxm->free_vxlan_tunnel_hw_if_indices)-1]; _vec_len (vxm->free_vxlan_tunnel_hw_if_indices) -= 1; hi = vnet_get_hw_interface (vnm, hw_if_index); hi->dev_instance = t - vxm->tunnels; hi->hw_instance = hi->dev_instance; /* clear old stats of freed tunnel before reuse */ sw_if_index = hi->sw_if_index; vnet_interface_counter_lock(im); vlib_zero_combined_counter (&im->combined_sw_if_counters[VNET_INTERFACE_COUNTER_TX], sw_if_index); vlib_zero_combined_counter (&im->combined_sw_if_counters[VNET_INTERFACE_COUNTER_RX], sw_if_index); vlib_zero_simple_counter (&im->sw_if_counters[VNET_INTERFACE_COUNTER_DROP], sw_if_index); vnet_interface_counter_unlock(im); } else { hw_if_index = vnet_register_interface (vnm, vxlan_device_class.index, t - vxm->tunnels, vxlan_hw_class.index, t - vxm->tunnels); hi = vnet_get_hw_interface (vnm, hw_if_index); } t->hw_if_index = hw_if_index; t->sw_if_index = sw_if_index = hi->sw_if_index; vec_validate_init_empty (vxm->tunnel_index_by_sw_if_index, sw_if_index, ~0); vxm->tunnel_index_by_sw_if_index[sw_if_index] = t - vxm->tunnels; /* setup l2 input config with l2 feature and bd 0 to drop packet */ vec_validate (l2im->configs, sw_if_index); l2im->configs[sw_if_index].feature_bitmap = L2INPUT_FEAT_DROP; l2im->configs[sw_if_index].bd_index = 0; vnet_sw_interface_set_flags (vnm, sw_if_index, VNET_SW_INTERFACE_FLAG_ADMIN_UP); fib_node_init(&t->node, FIB_NODE_TYPE_VXLAN_TUNNEL); fib_prefix_t tun_dst_pfx; u32 encap_index = !is_ip6 ? vxlan4_encap_node.index : vxlan6_encap_node.index; vnet_flood_class_t flood_class = VNET_FLOOD_CLASS_TUNNEL_NORMAL; fib_prefix_from_ip46_addr(&t->dst, &tun_dst_pfx); if (!ip46_address_is_multicast(&t->dst)) { /* Unicast tunnel - * source the FIB entry for the tunnel's destination * and become a child thereof. The tunnel will then get poked * when the forwarding for the entry updates, and the tunnel can * re-stack accordingly */ vtep_addr_ref(&t->src); t->fib_entry_index = fib_table_entry_special_add (t->encap_fib_index, &tun_dst_pfx, FIB_SOURCE_RR, FIB_ENTRY_FLAG_NONE, ADJ_INDEX_INVALID); t->sibling_index = fib_entry_child_add (t->fib_entry_index, FIB_NODE_TYPE_VXLAN_TUNNEL, t - vxm->tunnels); vxlan_tunnel_restack_dpo(t); } else { /* Multicast tunnel - * as the same mcast group can be used for mutiple mcast tunnels * with different VNIs, create the output fib adjecency only if * it does not already exist */ fib_protocol_t fp = (is_ip6) ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4; dpo_id_t dpo = DPO_INVALID; dpo_proto_t dproto = fib_proto_to_dpo(fp); if (vtep_addr_ref(&t->dst) == 1) { u8 mcast_mac[6]; ip46_multicast_ethernet_address(mcast_mac, &t->dst); receive_dpo_add_or_lock(dproto, ~0, NULL, &dpo); mcast_remote_t new_ep = { .ip = t->dst, .mcast_adj_index = adj_rewrite_add_and_lock (fp, fib_proto_to_link(fp), a->mcast_sw_if_index, mcast_mac), /* Add VRF local mcast adj. */ .fib_entry_index = fib_table_entry_special_dpo_add (t->encap_fib_index, &tun_dst_pfx, FIB_SOURCE_SPECIAL, FIB_ENTRY_FLAG_NONE, &dpo) }; mcast_ep_add(&new_ep); dpo_reset(&dpo); } /* Stack shared mcast dst mac addr rewrite on encap */ dpo_set (&dpo, DPO_ADJACENCY, dproto, mcast_ep_get(&t->dst)->mcast_adj_index); dpo_stack_from_node (encap_index, &t->next_dpo, &dpo); dpo_reset (&dpo); flood_class = VNET_FLOOD_CLASS_TUNNEL_MASTER; } /* Set vxlan tunnel output node */ hi->output_node_index = encap_index; vnet_get_sw_interface (vnet_get_main(), sw_if_index)->flood_class = flood_class; } else { /* deleting a tunnel: tunnel must exist */ if (!p) return VNET_API_ERROR_NO_SUCH_ENTRY; t = pool_elt_at_index (vxm->tunnels, p[0]); vnet_sw_interface_set_flags (vnm, t->sw_if_index, 0 /* down */); /* make sure tunnel is removed from l2 bd or xconnect */ set_int_l2_mode(vxm->vlib_main, vnm, MODE_L3, t->sw_if_index, 0, 0, 0, 0); vec_add1 (vxm->free_vxlan_tunnel_hw_if_indices, t->hw_if_index); vxm->tunnel_index_by_sw_if_index[t->sw_if_index] = ~0; if (!is_ip6) hash_unset (vxm->vxlan4_tunnel_by_key, key4.as_u64); else { hash_unset_mem (vxm->vxlan6_tunnel_by_key, t->key6); clib_mem_free (t->key6); } if (!ip46_address_is_multicast(&t->dst)) { vtep_addr_unref(&a->src); fib_entry_child_remove(t->fib_entry_index, t->sibling_index); fib_table_entry_delete_index(t->fib_entry_index, FIB_SOURCE_RR); } else if (vtep_addr_unref(&t->dst) == 0) { mcast_remote_t* ep = mcast_ep_get(&t->dst); adj_unlock(ep->mcast_adj_index); fib_table_entry_delete_index(ep->fib_entry_index, FIB_SOURCE_SPECIAL); mcast_ep_remove(ep); } fib_node_deinit(&t->node); vec_free (t->rewrite); pool_put (vxm->tunnels, t); } if (sw_if_indexp) *sw_if_indexp = sw_if_index; return 0; } static u32 fib4_index_from_fib_id (u32 fib_id) { ip4_main_t * im = &ip4_main; uword * p; p = hash_get (im->fib_index_by_table_id, fib_id); if (!p) return ~0; return p[0]; } static u32 fib6_index_from_fib_id (u32 fib_id) { ip6_main_t * im = &ip6_main; uword * p; p = hash_get (im->fib_index_by_table_id, fib_id); if (!p) return ~0; return p[0]; } static uword get_decap_next_for_node(u32 node_index, u32 ipv4_set) { vxlan_main_t * vxm = &vxlan_main; vlib_main_t * vm = vxm->vlib_main; uword next_index = ~0; if (ipv4_set) { next_index = vlib_node_add_next (vm, vxlan4_input_node.index, node_index); } else { next_index = vlib_node_add_next (vm, vxlan6_input_node.index, node_index); } return next_index; } static uword unformat_decap_next (unformat_input_t * input, va_list * args) { u32 * result = va_arg (*args, u32 *); u32 ipv4_set = va_arg (*args, int); vxlan_main_t * vxm = &vxlan_main; vlib_main_t * vm = vxm->vlib_main; u32 node_index; u32 tmp; if (unformat (input, "l2")) *result = VXLAN_INPUT_NEXT_L2_INPUT; else if (unformat (input, "node %U", unformat_vlib_node, vm, &node_index)) *result = get_decap_next_for_node(node_index, ipv4_set); else if (unformat (input, "%d", &tmp)) *result = tmp; else return 0; return 1; } static clib_error_t * vxlan_add_del_tunnel_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { unformat_input_t _line_input, * line_input = &_line_input; ip46_address_t src , dst; u8 is_add = 1; u8 src_set = 0; u8 dst_set = 0; u8 grp_set = 0; u8 ipv4_set = 0; u8 ipv6_set = 0; u32 encap_fib_index = 0; u32 mcast_sw_if_index = ~0; u32 decap_next_index = VXLAN_INPUT_NEXT_L2_INPUT; u32 vni = 0; u32 tmp; int rv; vnet_vxlan_add_del_tunnel_args_t _a, * a = &_a; u32 tunnel_sw_if_index; /* Cant "universally zero init" (={0}) due to GCC bug 53119 */ memset(&src, 0, sizeof src); memset(&dst, 0, sizeof dst); /* Get a line of input. */ if (! unformat_user (input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "del")) { is_add = 0; } else if (unformat (line_input, "src %U", unformat_ip4_address, &src.ip4)) { src_set = 1; ipv4_set = 1; } else if (unformat (line_input, "dst %U", unformat_ip4_address, &dst.ip4)) { dst_set = 1; ipv4_set = 1; } else if (unformat (line_input, "src %U", unformat_ip6_address, &src.ip6)) { src_set = 1; ipv6_set = 1; } else if (unformat (line_input, "dst %U", unformat_ip6_address, &dst.ip6)) { dst_set = 1; ipv6_set = 1; } else if (unformat (line_input, "group %U %U", unformat_ip4_address, &dst.ip4, unformat_vnet_sw_interface, vnet_get_main(), &mcast_sw_if_index)) { grp_set = dst_set = 1; ipv4_set = 1; } else if (unformat (line_input, "group %U %U", unformat_ip6_address, &dst.ip6, unformat_vnet_sw_interface, vnet_get_main(), &mcast_sw_if_index)) { grp_set = dst_set = 1; ipv6_set = 1; } else if (unformat (line_input, "encap-vrf-id %d", &tmp)) { if (ipv6_set) encap_fib_index = fib6_index_from_fib_id (tmp); else encap_fib_index = fib4_index_from_fib_id (tmp); if (encap_fib_index == ~0) return clib_error_return (0, "nonexistent encap-vrf-id %d", tmp); } else if (unformat (line_input, "decap-next %U", unformat_decap_next, &decap_next_index, ipv4_set)) ; else if (unformat (line_input, "vni %d", &vni)) { if (vni >> 24) return clib_error_return (0, "vni %d out of range", vni); } else return clib_error_return (0, "parse error: '%U'", format_unformat_error, line_input); } unformat_free (line_input); if (src_set == 0) return clib_error_return (0, "tunnel src address not specified"); if (dst_set == 0) return clib_error_return (0, "tunnel dst address not specified"); if (grp_set && !ip46_address_is_multicast(&dst)) return clib_error_return (0, "tunnel group address not multicast"); if (grp_set == 0 && ip46_address_is_multicast(&dst)) return clib_error_return (0, "dst address must be unicast"); if (grp_set && mcast_sw_if_index == ~0) return clib_error_return (0, "tunnel nonexistent multicast device"); if (ipv4_set && ipv6_set) return clib_error_return (0, "both IPv4 and IPv6 addresses specified"); if (ip46_address_cmp(&src, &dst) == 0) return clib_error_return (0, "src and dst addresses are identical"); if (decap_next_index == ~0) return clib_error_return (0, "next node not found"); if (vni == 0) return clib_error_return (0, "vni not specified"); memset (a, 0, sizeof (*a)); a->is_add = is_add; a->is_ip6 = ipv6_set; #define _(x) a->x = x; foreach_copy_field; #undef _ rv = vnet_vxlan_add_del_tunnel (a, &tunnel_sw_if_index); switch(rv) { case 0: if (is_add) vlib_cli_output(vm, "%U\n", format_vnet_sw_if_index_name, vnet_get_main(), tunnel_sw_if_index); break; case VNET_API_ERROR_TUNNEL_EXIST: return clib_error_return (0, "tunnel already exists..."); case VNET_API_ERROR_NO_SUCH_ENTRY: return clib_error_return (0, "tunnel does not exist..."); default: return clib_error_return (0, "vnet_vxlan_add_del_tunnel returned %d", rv); } return 0; } /*? * Add or delete a VXLAN Tunnel. * * VXLAN provides the features needed to allow L2 bridge domains (BDs) * to span multiple servers. This is done by building an L2 overlay on * top of an L3 network underlay using VXLAN tunnels. * * This makes it possible for servers to be co-located in the same data * center or be separated geographically as long as they are reachable * through the underlay L3 network. * * You can refer to this kind of L2 overlay bridge domain as a VXLAN * (Virtual eXtensible VLAN) segment. * * @cliexpar * Example of how to create a VXLAN Tunnel: * @cliexcmd{create vxlan tunnel src 10.0.3.1 dst 10.0.3.3 vni 13 encap-vrf-id 7} * Example of how to delete a VXLAN Tunnel: * @cliexcmd{create vxlan tunnel src 10.0.3.1 dst 10.0.3.3 vni 13 del} ?*/ /* *INDENT-OFF* */ VLIB_CLI_COMMAND (create_vxlan_tunnel_command, static) = { .path = "create vxlan tunnel", .short_help = "create vxlan tunnel src <local-vtep-addr>" " {dst <remote-vtep-addr>|group <mcast-vtep-addr> <intf-name>} vni <nn>" " [encap-vrf-id <nn>] [decap-next [l2|node <name>]] [del]", .function = vxlan_add_del_tunnel_command_fn, }; /* *INDENT-ON* */ static clib_error_t * show_vxlan_tunnel_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { vxlan_main_t * vxm = &vxlan_main; vxlan_tunnel_t * t; if (pool_elts (vxm->tunnels) == 0) vlib_cli_output (vm, "No vxlan tunnels configured..."); pool_foreach (t, vxm->tunnels, ({ vlib_cli_output (vm, "%U", format_vxlan_tunnel, t); })); return 0; } /*? * Display all the VXLAN Tunnel entries. * * @cliexpar * Example of how to display the VXLAN Tunnel entries: * @cliexstart{show vxlan tunnel} * [0] src 10.0.3.1 dst 10.0.3.3 vni 13 encap_fib_index 0 sw_if_index 5 decap_next l2 * @cliexend ?*/ /* *INDENT-OFF* */ VLIB_CLI_COMMAND (show_vxlan_tunnel_command, static) = { .path = "show vxlan tunnel", .short_help = "show vxlan tunnel", .function = show_vxlan_tunnel_command_fn, }; /* *INDENT-ON* */ clib_error_t *vxlan_init (vlib_main_t *vm) { vxlan_main_t * vxm = &vxlan_main; vxm->vnet_main = vnet_get_main(); vxm->vlib_main = vm; /* initialize the ip6 hash */ vxm->vxlan6_tunnel_by_key = hash_create_mem(0, sizeof(vxlan6_tunnel_key_t), sizeof(uword)); vxm->mcast_ep_by_ip = hash_create_mem(0, sizeof(ip46_address_t), sizeof(uword)); udp_register_dst_port (vm, UDP_DST_PORT_vxlan, vxlan4_input_node.index, /* is_ip4 */ 1); udp_register_dst_port (vm, UDP_DST_PORT_vxlan6, vxlan6_input_node.index, /* is_ip4 */ 0); fib_node_register_type(FIB_NODE_TYPE_VXLAN_TUNNEL, &vxlan_vft); return 0; } VLIB_INIT_FUNCTION(vxlan_init);


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