Adding Multipath support for exclusive DPO based fib path entries via rpath - vpp

diff options

author	Vijayabhaskar Katamreddy <vkatamre@cisco.com>	2018-10-05 11:24:56 -0700
committer	Vijayabhaskar Katamreddy <vkatamre@cisco.com>	2018-10-08 14:43:21 +0000
commit	cef5db0acdd076c33ed891c359b15086713aaafa (patch)
tree	b6ae546c0ddd862735ce4d012f073bcf1fdaa4ae /src/vlib/init.c
parent	c210cb50e815725e4bb949357c9f6e2fb4032ece (diff)

Adding Multipath support for exclusive DPO based fib path entries via rpath

Change-Id: I3c84daf046dbad972b36e48fa2548bbe20c7b338 Signed-off-by: Vijayabhaskar Katamreddy <vkatamre@cisco.com>

Diffstat (limited to 'src/vlib/init.c')

0 files changed, 0 insertions, 0 deletions

/* *------------------------------------------------------------------ * Copyright (c) 2017 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. *------------------------------------------------------------------ */ #define _GNU_SOURCE #include <stdint.h> #include <vnet/ethernet/ethernet.h> #include <vnet/ip/ip4_packet.h> #include <vnet/ip/ip6_packet.h> #include <vnet/ip/ip6_hop_by_hop_packet.h> #include <vnet/bonding/node.h> #include <vppinfra/lb_hash_hash.h> #include <vnet/ip/ip.h> #include <vnet/ethernet/arp_packet.h> #define foreach_bond_tx_error \ _(NONE, "no error") \ _(IF_DOWN, "interface down") \ _(NO_SLAVE, "no slave") typedef enum { #define _(f,s) BOND_TX_ERROR_##f, foreach_bond_tx_error #undef _ BOND_TX_N_ERROR, } bond_tx_error_t; static char *bond_tx_error_strings[] = { #define _(n,s) s, foreach_bond_tx_error #undef _ }; static u8 * format_bond_tx_trace (u8 * s, va_list * args) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); bond_packet_trace_t *t = va_arg (*args, bond_packet_trace_t *); vnet_hw_interface_t *hw, *hw1; vnet_main_t *vnm = vnet_get_main (); hw = vnet_get_sup_hw_interface (vnm, t->sw_if_index); hw1 = vnet_get_sup_hw_interface (vnm, t->bond_sw_if_index); s = format (s, "src %U, dst %U, %s -> %s", format_ethernet_address, t->ethernet.src_address, format_ethernet_address, t->ethernet.dst_address, hw->name, hw1->name); return s; } #ifndef CLIB_MARCH_VARIANT u8 * format_bond_interface_name (u8 * s, va_list * args) { u32 dev_instance = va_arg (*args, u32); bond_main_t *bm = &bond_main; bond_if_t *bif = pool_elt_at_index (bm->interfaces, dev_instance); s = format (s, "BondEthernet%lu", bif->dev_instance); return s; } #endif static __clib_unused clib_error_t * bond_set_l2_mode_function (vnet_main_t * vnm, struct vnet_hw_interface_t *bif_hw, i32 l2_if_adjust) { bond_if_t *bif; u32 *sw_if_index; struct vnet_hw_interface_t *sif_hw; bif = bond_get_master_by_sw_if_index (bif_hw->sw_if_index); if (!bif) return 0; if ((bif_hw->l2_if_count == 1) && (l2_if_adjust == 1)) { /* Just added first L2 interface on this port */ vec_foreach (sw_if_index, bif->slaves) { sif_hw = vnet_get_sup_hw_interface (vnm, *sw_if_index); ethernet_set_flags (vnm, sif_hw->hw_if_index, ETHERNET_INTERFACE_FLAG_ACCEPT_ALL); /* ensure all packets go to ethernet-input */ ethernet_set_rx_redirect (vnm, sif_hw, 1); } } return 0; } static __clib_unused clib_error_t * bond_subif_add_del_function (vnet_main_t * vnm, u32 hw_if_index, struct vnet_sw_interface_t *st, int is_add) { /* Nothing for now */ return 0; } static clib_error_t * bond_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags) { vnet_hw_interface_t *hif = vnet_get_hw_interface (vnm, hw_if_index); uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0; bond_main_t *bm = &bond_main; bond_if_t *bif = pool_elt_at_index (bm->interfaces, hif->dev_instance); bif->admin_up = is_up; if (is_up && vec_len (bif->active_slaves)) vnet_hw_interface_set_flags (vnm, bif->hw_if_index, VNET_HW_INTERFACE_FLAG_LINK_UP); return 0; } static_always_inline void bond_tx_add_to_queue (bond_per_thread_data_t * ptd, u32 port, u32 bi) { u32 idx = ptd->per_port_queue[port].n_buffers++; ptd->per_port_queue[port].buffers[idx] = bi; } static_always_inline u32 bond_lb_broadcast (vlib_main_t * vm, vlib_node_runtime_t * node, bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves) { bond_main_t *bm = &bond_main; vlib_buffer_t *c0; int port; u32 sw_if_index; u16 thread_index = vm->thread_index; bond_per_thread_data_t *ptd = vec_elt_at_index (bm->per_thread_data, thread_index); for (port = 1; port < n_slaves; port++) { sw_if_index = *vec_elt_at_index (bif->active_slaves, port); c0 = vlib_buffer_copy (vm, b0); if (PREDICT_TRUE (c0 != 0)) { vnet_buffer (c0)->sw_if_index[VLIB_TX] = sw_if_index; bond_tx_add_to_queue (ptd, port, vlib_get_buffer_index (vm, c0)); } } return 0; } static_always_inline u32 bond_lb_l2 (vlib_main_t * vm, vlib_node_runtime_t * node, bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves) { ethernet_header_t *eth = (ethernet_header_t *) vlib_buffer_get_current (b0); u64 *dst = (u64 *) & eth->dst_address[0]; u64 a = clib_mem_unaligned (dst, u64); u32 *src = (u32 *) & eth->src_address[2]; u32 b = clib_mem_unaligned (src, u32); return lb_hash_hash_2_tuples (a, b); } static_always_inline u16 * bond_locate_ethertype (ethernet_header_t * eth) { u16 *ethertype_p; ethernet_vlan_header_t *vlan; if (!ethernet_frame_is_tagged (clib_net_to_host_u16 (eth->type))) { ethertype_p = &eth->type; } else { vlan = (void *) (eth + 1); ethertype_p = &vlan->type; if (*ethertype_p == ntohs (ETHERNET_TYPE_VLAN)) { vlan++; ethertype_p = &vlan->type; } } return ethertype_p; } static_always_inline u32 bond_lb_l23 (vlib_main_t * vm, vlib_node_runtime_t * node, bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves) { ethernet_header_t *eth = (ethernet_header_t *) vlib_buffer_get_current (b0); u8 ip_version; ip4_header_t *ip4; u16 ethertype, *ethertype_p; u32 *mac1, *mac2, *mac3; ethertype_p = bond_locate_ethertype (eth); ethertype = clib_mem_unaligned (ethertype_p, u16); if ((ethertype != htons (ETHERNET_TYPE_IP4)) && (ethertype != htons (ETHERNET_TYPE_IP6))) return (bond_lb_l2 (vm, node, bif, b0, n_slaves)); ip4 = (ip4_header_t *) (ethertype_p + 1); ip_version = (ip4->ip_version_and_header_length >> 4); if (ip_version == 0x4) { u32 a, c; mac1 = (u32 *) & eth->dst_address[0]; mac2 = (u32 *) & eth->dst_address[4]; mac3 = (u32 *) & eth->src_address[2]; a = clib_mem_unaligned (mac1, u32) ^ clib_mem_unaligned (mac2, u32) ^ clib_mem_unaligned (mac3, u32); c = lb_hash_hash_2_tuples (clib_mem_unaligned (&ip4->address_pair, u64), a); return c; } else if (ip_version == 0x6) { u64 a; u32 c; ip6_header_t *ip6 = (ip6_header_t *) (eth + 1); mac1 = (u32 *) & eth->dst_address[0]; mac2 = (u32 *) & eth->dst_address[4]; mac3 = (u32 *) & eth->src_address[2]; a = clib_mem_unaligned (mac1, u32) ^ clib_mem_unaligned (mac2, u32) ^ clib_mem_unaligned (mac3, u32); c = lb_hash_hash (clib_mem_unaligned (&ip6->src_address.as_uword[0], uword), clib_mem_unaligned (&ip6->src_address.as_uword[1], uword), clib_mem_unaligned (&ip6->dst_address.as_uword[0], uword), clib_mem_unaligned (&ip6->dst_address.as_uword[1], uword), a); return c; } return (bond_lb_l2 (vm, node, bif, b0, n_slaves)); } static_always_inline u32 bond_lb_l34 (vlib_main_t * vm, vlib_node_runtime_t * node, bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves) { ethernet_header_t *eth = (ethernet_header_t *) vlib_buffer_get_current (b0); u8 ip_version; uword is_tcp_udp; ip4_header_t *ip4; u16 ethertype, *ethertype_p; ethertype_p = bond_locate_ethertype (eth); ethertype = clib_mem_unaligned (ethertype_p, u16); if ((ethertype != htons (ETHERNET_TYPE_IP4)) && (ethertype != htons (ETHERNET_TYPE_IP6))) return (bond_lb_l2 (vm, node, bif, b0, n_slaves)); ip4 = (ip4_header_t *) (ethertype_p + 1); ip_version = (ip4->ip_version_and_header_length >> 4); if (ip_version == 0x4) { u32 a, t1, t2; tcp_header_t *tcp = (void *) (ip4 + 1); is_tcp_udp = (ip4->protocol == IP_PROTOCOL_TCP) || (ip4->protocol == IP_PROTOCOL_UDP); t1 = is_tcp_udp ? clib_mem_unaligned (&tcp->src, u16) : 0; t2 = is_tcp_udp ? clib_mem_unaligned (&tcp->dst, u16) : 0; a = t1 ^ t2; return lb_hash_hash_2_tuples (clib_mem_unaligned (&ip4->address_pair, u64), a); } else if (ip_version == 0x6) { u64 a; u32 c, t1, t2; ip6_header_t *ip6 = (ip6_header_t *) (eth + 1); tcp_header_t *tcp = (void *) (ip6 + 1); is_tcp_udp = 0; if (PREDICT_TRUE ((ip6->protocol == IP_PROTOCOL_TCP) || (ip6->protocol == IP_PROTOCOL_UDP))) { is_tcp_udp = 1; tcp = (void *) (ip6 + 1); } else if (ip6->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS) { ip6_hop_by_hop_header_t *hbh = (ip6_hop_by_hop_header_t *) (ip6 + 1); if ((hbh->protocol == IP_PROTOCOL_TCP) || (hbh->protocol == IP_PROTOCOL_UDP)) { is_tcp_udp = 1; tcp = (tcp_header_t *) ((u8 *) hbh + ((hbh->length + 1) << 3)); } } t1 = is_tcp_udp ? clib_mem_unaligned (&tcp->src, u16) : 0; t2 = is_tcp_udp ? clib_mem_unaligned (&tcp->dst, u16) : 0; a = t1 ^ t2; c = lb_hash_hash (clib_mem_unaligned (&ip6->src_address.as_uword[0], uword), clib_mem_unaligned (&ip6->src_address.as_uword[1], uword), clib_mem_unaligned (&ip6->dst_address.as_uword[0], uword), clib_mem_unaligned (&ip6->dst_address.as_uword[1], uword), a); return c; } return (bond_lb_l2 (vm, node, bif, b0, n_slaves)); } static_always_inline u32 bond_lb_round_robin (vlib_main_t * vm, vlib_node_runtime_t * node, bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves) { bif->lb_rr_last_index++; if (bif->lb_rr_last_index >= n_slaves) bif->lb_rr_last_index = 0; return bif->lb_rr_last_index; } static_always_inline void bond_tx_inline (vlib_main_t * vm, vlib_node_runtime_t * node, bond_if_t * bif, vlib_buffer_t ** b, u32 * h, u32 n_left, uword n_slaves, u32 lb_alg) { while (n_left >= 4) { // Prefetch next iteration if (n_left >= 8) { vlib_buffer_t **pb = b + 4; vlib_prefetch_buffer_header (pb[0], LOAD); vlib_prefetch_buffer_header (pb[1], LOAD); vlib_prefetch_buffer_header (pb[2], LOAD); vlib_prefetch_buffer_header (pb[3], LOAD); CLIB_PREFETCH (pb[0]->data, CLIB_CACHE_LINE_BYTES, LOAD); CLIB_PREFETCH (pb[1]->data, CLIB_CACHE_LINE_BYTES, LOAD); CLIB_PREFETCH (pb[2]->data, CLIB_CACHE_LINE_BYTES, LOAD); CLIB_PREFETCH (pb[3]->data, CLIB_CACHE_LINE_BYTES, LOAD); } VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[0]); VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[1]); VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[2]); VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[3]); if (lb_alg == BOND_LB_L2) { h[0] = bond_lb_l2 (vm, node, bif, b[0], n_slaves); h[1] = bond_lb_l2 (vm, node, bif, b[1], n_slaves); h[2] = bond_lb_l2 (vm, node, bif, b[2], n_slaves); h[3] = bond_lb_l2 (vm, node, bif, b[3], n_slaves); } else if (lb_alg == BOND_LB_L34) { h[0] = bond_lb_l34 (vm, node, bif, b[0], n_slaves); h[1] = bond_lb_l34 (vm, node, bif, b[1], n_slaves); h[2] = bond_lb_l34 (vm, node, bif, b[2], n_slaves); h[3] = bond_lb_l34 (vm, node, bif, b[3], n_slaves); } else if (lb_alg == BOND_LB_L23) { h[0] = bond_lb_l23 (vm, node, bif, b[0], n_slaves); h[1] = bond_lb_l23 (vm, node, bif, b[1], n_slaves); h[2] = bond_lb_l23 (vm, node, bif, b[2], n_slaves); h[3] = bond_lb_l23 (vm, node, bif, b[3], n_slaves); } else if (lb_alg == BOND_LB_RR) { h[0] = bond_lb_round_robin (vm, node, bif, b[0], n_slaves); h[1] = bond_lb_round_robin (vm, node, bif, b[1], n_slaves); h[2] = bond_lb_round_robin (vm, node, bif, b[2], n_slaves); h[3] = bond_lb_round_robin (vm, node, bif, b[3], n_slaves); } else if (lb_alg == BOND_LB_BC) { h[0] = bond_lb_broadcast (vm, node, bif, b[0], n_slaves); h[1] = bond_lb_broadcast (vm, node, bif, b[1], n_slaves); h[2] = bond_lb_broadcast (vm, node, bif, b[2], n_slaves); h[3] = bond_lb_broadcast (vm, node, bif, b[3], n_slaves); } else { ASSERT (0); } n_left -= 4; b += 4; h += 4; } while (n_left > 0) { VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[0]); if (bif->lb == BOND_LB_L2) h[0] = bond_lb_l2 (vm, node, bif, b[0], n_slaves); else if (bif->lb == BOND_LB_L34) h[0] = bond_lb_l34 (vm, node, bif, b[0], n_slaves); else if (bif->lb == BOND_LB_L23) h[0] = bond_lb_l23 (vm, node, bif, b[0], n_slaves); else if (bif->lb == BOND_LB_RR) h[0] = bond_lb_round_robin (vm, node, bif, b[0], n_slaves); else if (bif->lb == BOND_LB_BC) h[0] = bond_lb_broadcast (vm, node, bif, b[0], n_slaves); else { ASSERT (0); } n_left -= 1; b += 1; } } static_always_inline void bond_hash_to_port (u32 * h, u32 n_left, u32 n_slaves, int use_modulo_shortcut) { u32 mask = n_slaves - 1; #ifdef CLIB_HAVE_VEC256 /* only lower 16 bits of hash due to single precision fp arithmetics */ u32x8 mask8, sc8u, h8a, h8b; f32x8 sc8f; if (use_modulo_shortcut) { mask8 = u32x8_splat (mask); } else { mask8 = u32x8_splat (0xffff); sc8u = u32x8_splat (n_slaves); sc8f = f32x8_from_u32x8 (sc8u); } while (n_left > 16) { h8a = u32x8_load_unaligned (h) & mask8; h8b = u32x8_load_unaligned (h + 8) & mask8; if (use_modulo_shortcut == 0) { h8a -= sc8u * u32x8_from_f32x8 (f32x8_from_u32x8 (h8a) / sc8f); h8b -= sc8u * u32x8_from_f32x8 (f32x8_from_u32x8 (h8b) / sc8f); } u32x8_store_unaligned (h8a, h); u32x8_store_unaligned (h8b, h + 8); n_left -= 16; h += 16; } #endif while (n_left > 4) { if (use_modulo_shortcut) { h[0] &= mask; h[1] &= mask; h[2] &= mask; h[3] &= mask; } else { h[0] %= n_slaves; h[1] %= n_slaves; h[2] %= n_slaves; h[3] %= n_slaves; } n_left -= 4; h += 4; } while (n_left) { if (use_modulo_shortcut) h[0] &= mask; else h[0] %= n_slaves; n_left -= 1; h += 1; } } static_always_inline void bond_update_sw_if_index (bond_per_thread_data_t * ptd, bond_if_t * bif, u32 * bi, vlib_buffer_t ** b, u32 * data, u32 n_left, int single_sw_if_index) { u32 sw_if_index = data[0]; u32 *h = data; while (n_left >= 4) { // Prefetch next iteration if (n_left >= 8) { vlib_buffer_t **pb = b + 4; vlib_prefetch_buffer_header (pb[0], LOAD); vlib_prefetch_buffer_header (pb[1], LOAD); vlib_prefetch_buffer_header (pb[2], LOAD); vlib_prefetch_buffer_header (pb[3], LOAD); } if (PREDICT_FALSE (single_sw_if_index)) { vnet_buffer (b[0])->sw_if_index[VLIB_TX] = sw_if_index; vnet_buffer (b[1])->sw_if_index[VLIB_TX] = sw_if_index; vnet_buffer (b[2])->sw_if_index[VLIB_TX] = sw_if_index; vnet_buffer (b[3])->sw_if_index[VLIB_TX] = sw_if_index; bond_tx_add_to_queue (ptd, 0, bi[0]); bond_tx_add_to_queue (ptd, 0, bi[1]); bond_tx_add_to_queue (ptd, 0, bi[2]); bond_tx_add_to_queue (ptd, 0, bi[3]); } else { u32 sw_if_index[4]; sw_if_index[0] = *vec_elt_at_index (bif->active_slaves, h[0]); sw_if_index[1] = *vec_elt_at_index (bif->active_slaves, h[1]); sw_if_index[2] = *vec_elt_at_index (bif->active_slaves, h[2]); sw_if_index[3] = *vec_elt_at_index (bif->active_slaves, h[3]); vnet_buffer (b[0])->sw_if_index[VLIB_TX] = sw_if_index[0]; vnet_buffer (b[1])->sw_if_index[VLIB_TX] = sw_if_index[1]; vnet_buffer (b[2])->sw_if_index[VLIB_TX] = sw_if_index[2]; vnet_buffer (b[3])->sw_if_index[VLIB_TX] = sw_if_index[3]; bond_tx_add_to_queue (ptd, h[0], bi[0]); bond_tx_add_to_queue (ptd, h[1], bi[1]); bond_tx_add_to_queue (ptd, h[2], bi[2]); bond_tx_add_to_queue (ptd, h[3], bi[3]); } bi += 4; h += 4; b += 4; n_left -= 4; } while (n_left) { if (PREDICT_FALSE (single_sw_if_index)) { vnet_buffer (b[0])->sw_if_index[VLIB_TX] = sw_if_index; bond_tx_add_to_queue (ptd, 0, bi[0]); } else { u32 sw_if_index0 = *vec_elt_at_index (bif->active_slaves, h[0]); vnet_buffer (b[0])->sw_if_index[VLIB_TX] = sw_if_index0; bond_tx_add_to_queue (ptd, h[0], bi[0]); } bi += 1; h += 1; b += 1; n_left -= 1; } } static_always_inline void bond_tx_trace (vlib_main_t * vm, vlib_node_runtime_t * node, bond_if_t * bif, vlib_buffer_t ** b, u32 n_left, u32 * h) { uword n_trace = vlib_get_trace_count (vm, node); while (n_trace > 0 && n_left > 0) { bond_packet_trace_t *t0; ethernet_header_t *eth; u32 next0 = 0; vlib_trace_buffer (vm, node, next0, b[0], 0 /* follow_chain */ ); vlib_set_trace_count (vm, node, --n_trace); t0 = vlib_add_trace (vm, node, b[0], sizeof (*t0)); eth = (ethernet_header_t *) vlib_buffer_get_current (b[0]); t0->ethernet = *eth; t0->sw_if_index = vnet_buffer (b[0])->sw_if_index[VLIB_TX]; if (!h) { t0->bond_sw_if_index = *vec_elt_at_index (bif->active_slaves, 0); } else { t0->bond_sw_if_index = *vec_elt_at_index (bif->active_slaves, h[0]); h++; } b++; n_left--; } } VNET_DEVICE_CLASS_TX_FN (bond_dev_class) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { vnet_interface_output_runtime_t *rund = (void *) node->runtime_data; bond_main_t *bm = &bond_main; u16 thread_index = vm->thread_index; bond_if_t *bif = pool_elt_at_index (bm->interfaces, rund->dev_instance); uword n_slaves; vlib_buffer_t *bufs[VLIB_FRAME_SIZE]; u32 *from = vlib_frame_vector_args (frame); u32 n_left = frame->n_vectors; u32 hashes[VLIB_FRAME_SIZE], *h; vnet_main_t *vnm = vnet_get_main (); bond_per_thread_data_t *ptd = vec_elt_at_index (bm->per_thread_data, thread_index); u32 p, sw_if_index; if (PREDICT_FALSE (bif->admin_up == 0)) { vlib_buffer_free (vm, vlib_frame_args (frame), frame->n_vectors); vlib_increment_simple_counter (vnet_main.interface_main.sw_if_counters + VNET_INTERFACE_COUNTER_DROP, thread_index, bif->sw_if_index, frame->n_vectors); vlib_error_count (vm, node->node_index, BOND_TX_ERROR_IF_DOWN, frame->n_vectors); return frame->n_vectors; } n_slaves = vec_len (bif->active_slaves); if (PREDICT_FALSE (n_slaves == 0)) { vlib_buffer_free (vm, vlib_frame_args (frame), frame->n_vectors); vlib_increment_simple_counter (vnet_main.interface_main.sw_if_counters + VNET_INTERFACE_COUNTER_DROP, thread_index, bif->sw_if_index, frame->n_vectors); vlib_error_count (vm, node->node_index, BOND_TX_ERROR_NO_SLAVE, frame->n_vectors); return frame->n_vectors; } vlib_get_buffers (vm, from, bufs, n_left); /* active-backup mode, ship everyting to first sw if index */ if ((bif->lb == BOND_LB_AB) || PREDICT_FALSE (n_slaves == 1)) { sw_if_index = *vec_elt_at_index (bif->active_slaves, 0); bond_tx_trace (vm, node, bif, bufs, frame->n_vectors, 0); bond_update_sw_if_index (ptd, bif, from, bufs, &sw_if_index, n_left, /* single_sw_if_index */ 1); goto done; } if (bif->lb == BOND_LB_BC) { sw_if_index = *vec_elt_at_index (bif->active_slaves, 0); bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves, BOND_LB_BC); bond_tx_trace (vm, node, bif, bufs, frame->n_vectors, 0); bond_update_sw_if_index (ptd, bif, from, bufs, &sw_if_index, n_left, /* single_sw_if_index */ 1); goto done; } if (bif->lb == BOND_LB_L2) bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves, BOND_LB_L2); else if (bif->lb == BOND_LB_L34) bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves, BOND_LB_L34); else if (bif->lb == BOND_LB_L23) bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves, BOND_LB_L23); else if (bif->lb == BOND_LB_RR) bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves, BOND_LB_RR); else ASSERT (0); /* calculate port out of hash */ h = hashes; if (BOND_MODULO_SHORTCUT (n_slaves)) bond_hash_to_port (h, frame->n_vectors, n_slaves, 1); else bond_hash_to_port (h, frame->n_vectors, n_slaves, 0); bond_tx_trace (vm, node, bif, bufs, frame->n_vectors, h); bond_update_sw_if_index (ptd, bif, from, bufs, hashes, frame->n_vectors, /* single_sw_if_index */ 0); done: for (p = 0; p < n_slaves; p++) { vlib_frame_t *f; u32 *to_next; sw_if_index = *vec_elt_at_index (bif->active_slaves, p); if (PREDICT_TRUE (ptd->per_port_queue[p].n_buffers)) { f = vnet_get_frame_to_sw_interface (vnm, sw_if_index); f->n_vectors = ptd->per_port_queue[p].n_buffers; to_next = vlib_frame_vector_args (f); clib_memcpy (to_next, ptd->per_port_queue[p].buffers, f->n_vectors * sizeof (u32)); vnet_put_frame_to_sw_interface (vnm, sw_if_index, f); ptd->per_port_queue[p].n_buffers = 0; } } vlib_increment_simple_counter (vnet_main.interface_main.sw_if_counters + VNET_INTERFACE_COUNTER_TX, thread_index, bif->sw_if_index, frame->n_vectors); return frame->n_vectors; } static walk_rc_t bond_active_interface_switch_cb (vnet_main_t * vnm, u32 sw_if_index, void *arg) { bond_main_t *bm = &bond_main; send_ip4_garp (bm->vlib_main, sw_if_index); send_ip6_na (bm->vlib_main, sw_if_index); return (WALK_CONTINUE); } static uword bond_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f) { vnet_main_t *vnm = vnet_get_main (); uword event_type, *event_data = 0; while (1) { u32 i; u32 hw_if_index; vlib_process_wait_for_event (vm); event_type = vlib_process_get_events (vm, &event_data); ASSERT (event_type == BOND_SEND_GARP_NA); for (i = 0; i < vec_len (event_data); i++) { hw_if_index = event_data[i]; /* walk hw interface to process all subinterfaces */ vnet_hw_interface_walk_sw (vnm, hw_if_index, bond_active_interface_switch_cb, 0); } vec_reset_length (event_data); } return 0; } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (bond_process_node) = { .function = bond_process, .type = VLIB_NODE_TYPE_PROCESS, .name = "bond-process", }; /* *INDENT-ON* */ /* *INDENT-OFF* */ VNET_DEVICE_CLASS (bond_dev_class) = { .name = "bond", .tx_function_n_errors = BOND_TX_N_ERROR, .tx_function_error_strings = bond_tx_error_strings, .format_device_name = format_bond_interface_name, .set_l2_mode_function = bond_set_l2_mode_function, .admin_up_down_function = bond_interface_admin_up_down, .subif_add_del_function = bond_subif_add_del_function, .format_tx_trace = format_bond_tx_trace, }; /* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


context:
space:
mode: