2 *------------------------------------------------------------------
3 * Copyright (c) 2017 Cisco and/or its affiliates.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *------------------------------------------------------------------
20 #include <vnet/ethernet/ethernet.h>
21 #include <vnet/ip/ip4_packet.h>
22 #include <vnet/ip/ip6_packet.h>
23 #include <vnet/ip/ip6_hop_by_hop_packet.h>
24 #include <vnet/bonding/node.h>
25 #include <vppinfra/lb_hash_hash.h>
26 #include <vnet/ip/ip.h>
27 #include <vnet/ethernet/arp_packet.h>
29 #define foreach_bond_tx_error \
31 _(IF_DOWN, "interface down") \
32 _(NO_SLAVE, "no slave")
36 #define _(f,s) BOND_TX_ERROR_##f,
42 static char *bond_tx_error_strings[] = {
49 format_bond_tx_trace (u8 * s, va_list * args)
51 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
52 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
53 bond_packet_trace_t *t = va_arg (*args, bond_packet_trace_t *);
54 vnet_hw_interface_t *hw, *hw1;
55 vnet_main_t *vnm = vnet_get_main ();
57 hw = vnet_get_sup_hw_interface (vnm, t->sw_if_index);
58 hw1 = vnet_get_sup_hw_interface (vnm, t->bond_sw_if_index);
59 s = format (s, "src %U, dst %U, %s -> %s",
60 format_ethernet_address, t->ethernet.src_address,
61 format_ethernet_address, t->ethernet.dst_address,
67 #ifndef CLIB_MARCH_VARIANT
69 format_bond_interface_name (u8 * s, va_list * args)
71 u32 dev_instance = va_arg (*args, u32);
72 bond_main_t *bm = &bond_main;
73 bond_if_t *bif = pool_elt_at_index (bm->interfaces, dev_instance);
75 s = format (s, "BondEthernet%lu", bif->dev_instance);
81 static __clib_unused clib_error_t *
82 bond_set_l2_mode_function (vnet_main_t * vnm,
83 struct vnet_hw_interface_t *bif_hw,
88 struct vnet_hw_interface_t *sif_hw;
90 bif = bond_get_master_by_sw_if_index (bif_hw->sw_if_index);
94 if ((bif_hw->l2_if_count == 1) && (l2_if_adjust == 1))
96 /* Just added first L2 interface on this port */
97 vec_foreach (sw_if_index, bif->slaves)
99 sif_hw = vnet_get_sup_hw_interface (vnm, *sw_if_index);
100 ethernet_set_flags (vnm, sif_hw->hw_if_index,
101 ETHERNET_INTERFACE_FLAG_ACCEPT_ALL);
103 /* ensure all packets go to ethernet-input */
104 ethernet_set_rx_redirect (vnm, sif_hw, 1);
107 else if ((bif_hw->l2_if_count == 0) && (l2_if_adjust == -1))
109 /* Just removed last L2 subinterface on this port */
110 vec_foreach (sw_if_index, bif->slaves)
112 sif_hw = vnet_get_sup_hw_interface (vnm, *sw_if_index);
114 /* Allow ip packets to go directly to ip4-input etc */
115 ethernet_set_rx_redirect (vnm, sif_hw, 0);
122 static __clib_unused clib_error_t *
123 bond_subif_add_del_function (vnet_main_t * vnm, u32 hw_if_index,
124 struct vnet_sw_interface_t *st, int is_add)
126 /* Nothing for now */
130 static clib_error_t *
131 bond_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
133 vnet_hw_interface_t *hif = vnet_get_hw_interface (vnm, hw_if_index);
134 uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
135 bond_main_t *bm = &bond_main;
136 bond_if_t *bif = pool_elt_at_index (bm->interfaces, hif->dev_instance);
138 bif->admin_up = is_up;
139 if (is_up && vec_len (bif->active_slaves))
140 vnet_hw_interface_set_flags (vnm, bif->hw_if_index,
141 VNET_HW_INTERFACE_FLAG_LINK_UP);
145 static_always_inline void
146 bond_tx_add_to_queue (bond_per_thread_data_t * ptd, u32 port, u32 bi)
148 u32 idx = ptd->per_port_queue[port].n_buffers++;
149 ptd->per_port_queue[port].buffers[idx] = bi;
152 static_always_inline u32
153 bond_lb_broadcast (vlib_main_t * vm, vlib_node_runtime_t * node,
154 bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves)
156 bond_main_t *bm = &bond_main;
160 u16 thread_index = vm->thread_index;
161 bond_per_thread_data_t *ptd = vec_elt_at_index (bm->per_thread_data,
164 for (port = 1; port < n_slaves; port++)
166 sw_if_index = *vec_elt_at_index (bif->active_slaves, port);
167 c0 = vlib_buffer_copy (vm, b0);
168 if (PREDICT_TRUE (c0 != 0))
170 vnet_buffer (c0)->sw_if_index[VLIB_TX] = sw_if_index;
171 bond_tx_add_to_queue (ptd, port, vlib_get_buffer_index (vm, c0));
178 static_always_inline u32
179 bond_lb_l2 (vlib_main_t * vm, vlib_node_runtime_t * node,
180 bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves)
182 ethernet_header_t *eth = (ethernet_header_t *) vlib_buffer_get_current (b0);
183 u64 *dst = (u64 *) & eth->dst_address[0];
184 u64 a = clib_mem_unaligned (dst, u64);
185 u32 *src = (u32 *) & eth->src_address[2];
186 u32 b = clib_mem_unaligned (src, u32);
188 return lb_hash_hash_2_tuples (a, b);
191 static_always_inline u16 *
192 bond_locate_ethertype (ethernet_header_t * eth)
195 ethernet_vlan_header_t *vlan;
197 if (!ethernet_frame_is_tagged (clib_net_to_host_u16 (eth->type)))
199 ethertype_p = ð->type;
203 vlan = (void *) (eth + 1);
204 ethertype_p = &vlan->type;
205 if (*ethertype_p == ntohs (ETHERNET_TYPE_VLAN))
208 ethertype_p = &vlan->type;
214 static_always_inline u32
215 bond_lb_l23 (vlib_main_t * vm, vlib_node_runtime_t * node,
216 bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves)
218 ethernet_header_t *eth = (ethernet_header_t *) vlib_buffer_get_current (b0);
221 u16 ethertype, *ethertype_p;
222 u32 *mac1, *mac2, *mac3;
224 ethertype_p = bond_locate_ethertype (eth);
225 ethertype = clib_mem_unaligned (ethertype_p, u16);
227 if ((ethertype != htons (ETHERNET_TYPE_IP4)) &&
228 (ethertype != htons (ETHERNET_TYPE_IP6)))
229 return (bond_lb_l2 (vm, node, bif, b0, n_slaves));
231 ip4 = (ip4_header_t *) (ethertype_p + 1);
232 ip_version = (ip4->ip_version_and_header_length >> 4);
234 if (ip_version == 0x4)
238 mac1 = (u32 *) & eth->dst_address[0];
239 mac2 = (u32 *) & eth->dst_address[4];
240 mac3 = (u32 *) & eth->src_address[2];
242 a = clib_mem_unaligned (mac1, u32) ^ clib_mem_unaligned (mac2, u32) ^
243 clib_mem_unaligned (mac3, u32);
245 lb_hash_hash_2_tuples (clib_mem_unaligned (&ip4->address_pair, u64),
249 else if (ip_version == 0x6)
253 ip6_header_t *ip6 = (ip6_header_t *) (eth + 1);
255 mac1 = (u32 *) & eth->dst_address[0];
256 mac2 = (u32 *) & eth->dst_address[4];
257 mac3 = (u32 *) & eth->src_address[2];
259 a = clib_mem_unaligned (mac1, u32) ^ clib_mem_unaligned (mac2, u32) ^
260 clib_mem_unaligned (mac3, u32);
262 lb_hash_hash (clib_mem_unaligned
263 (&ip6->src_address.as_uword[0], uword),
264 clib_mem_unaligned (&ip6->src_address.as_uword[1],
266 clib_mem_unaligned (&ip6->dst_address.as_uword[0],
268 clib_mem_unaligned (&ip6->dst_address.as_uword[1],
272 return (bond_lb_l2 (vm, node, bif, b0, n_slaves));
275 static_always_inline u32
276 bond_lb_l34 (vlib_main_t * vm, vlib_node_runtime_t * node,
277 bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves)
279 ethernet_header_t *eth = (ethernet_header_t *) vlib_buffer_get_current (b0);
283 u16 ethertype, *ethertype_p;
285 ethertype_p = bond_locate_ethertype (eth);
286 ethertype = clib_mem_unaligned (ethertype_p, u16);
288 if ((ethertype != htons (ETHERNET_TYPE_IP4)) &&
289 (ethertype != htons (ETHERNET_TYPE_IP6)))
290 return (bond_lb_l2 (vm, node, bif, b0, n_slaves));
292 ip4 = (ip4_header_t *) (ethertype_p + 1);
293 ip_version = (ip4->ip_version_and_header_length >> 4);
295 if (ip_version == 0x4)
298 tcp_header_t *tcp = (void *) (ip4 + 1);
300 is_tcp_udp = (ip4->protocol == IP_PROTOCOL_TCP) ||
301 (ip4->protocol == IP_PROTOCOL_UDP);
302 t1 = is_tcp_udp ? clib_mem_unaligned (&tcp->src, u16) : 0;
303 t2 = is_tcp_udp ? clib_mem_unaligned (&tcp->dst, u16) : 0;
306 lb_hash_hash_2_tuples (clib_mem_unaligned (&ip4->address_pair, u64),
309 else if (ip_version == 0x6)
313 ip6_header_t *ip6 = (ip6_header_t *) (eth + 1);
314 tcp_header_t *tcp = (void *) (ip6 + 1);
317 if (PREDICT_TRUE ((ip6->protocol == IP_PROTOCOL_TCP) ||
318 (ip6->protocol == IP_PROTOCOL_UDP)))
321 tcp = (void *) (ip6 + 1);
323 else if (ip6->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)
325 ip6_hop_by_hop_header_t *hbh =
326 (ip6_hop_by_hop_header_t *) (ip6 + 1);
327 if ((hbh->protocol == IP_PROTOCOL_TCP)
328 || (hbh->protocol == IP_PROTOCOL_UDP))
331 tcp = (tcp_header_t *) ((u8 *) hbh + ((hbh->length + 1) << 3));
334 t1 = is_tcp_udp ? clib_mem_unaligned (&tcp->src, u16) : 0;
335 t2 = is_tcp_udp ? clib_mem_unaligned (&tcp->dst, u16) : 0;
338 lb_hash_hash (clib_mem_unaligned
339 (&ip6->src_address.as_uword[0], uword),
340 clib_mem_unaligned (&ip6->src_address.as_uword[1],
342 clib_mem_unaligned (&ip6->dst_address.as_uword[0],
344 clib_mem_unaligned (&ip6->dst_address.as_uword[1],
349 return (bond_lb_l2 (vm, node, bif, b0, n_slaves));
352 static_always_inline u32
353 bond_lb_round_robin (vlib_main_t * vm,
354 vlib_node_runtime_t * node,
355 bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves)
357 bif->lb_rr_last_index++;
358 if (bif->lb_rr_last_index >= n_slaves)
359 bif->lb_rr_last_index = 0;
361 return bif->lb_rr_last_index;
364 static_always_inline void
365 bond_tx_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
366 bond_if_t * bif, vlib_buffer_t ** b,
367 u32 * h, u32 n_left, uword n_slaves, u32 lb_alg)
371 // Prefetch next iteration
374 vlib_buffer_t **pb = b + 4;
376 vlib_prefetch_buffer_header (pb[0], LOAD);
377 vlib_prefetch_buffer_header (pb[1], LOAD);
378 vlib_prefetch_buffer_header (pb[2], LOAD);
379 vlib_prefetch_buffer_header (pb[3], LOAD);
381 CLIB_PREFETCH (pb[0]->data, CLIB_CACHE_LINE_BYTES, LOAD);
382 CLIB_PREFETCH (pb[1]->data, CLIB_CACHE_LINE_BYTES, LOAD);
383 CLIB_PREFETCH (pb[2]->data, CLIB_CACHE_LINE_BYTES, LOAD);
384 CLIB_PREFETCH (pb[3]->data, CLIB_CACHE_LINE_BYTES, LOAD);
387 VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[0]);
388 VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[1]);
389 VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[2]);
390 VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[3]);
392 if (lb_alg == BOND_LB_L2)
394 h[0] = bond_lb_l2 (vm, node, bif, b[0], n_slaves);
395 h[1] = bond_lb_l2 (vm, node, bif, b[1], n_slaves);
396 h[2] = bond_lb_l2 (vm, node, bif, b[2], n_slaves);
397 h[3] = bond_lb_l2 (vm, node, bif, b[3], n_slaves);
399 else if (lb_alg == BOND_LB_L34)
401 h[0] = bond_lb_l34 (vm, node, bif, b[0], n_slaves);
402 h[1] = bond_lb_l34 (vm, node, bif, b[1], n_slaves);
403 h[2] = bond_lb_l34 (vm, node, bif, b[2], n_slaves);
404 h[3] = bond_lb_l34 (vm, node, bif, b[3], n_slaves);
406 else if (lb_alg == BOND_LB_L23)
408 h[0] = bond_lb_l23 (vm, node, bif, b[0], n_slaves);
409 h[1] = bond_lb_l23 (vm, node, bif, b[1], n_slaves);
410 h[2] = bond_lb_l23 (vm, node, bif, b[2], n_slaves);
411 h[3] = bond_lb_l23 (vm, node, bif, b[3], n_slaves);
413 else if (lb_alg == BOND_LB_RR)
415 h[0] = bond_lb_round_robin (vm, node, bif, b[0], n_slaves);
416 h[1] = bond_lb_round_robin (vm, node, bif, b[1], n_slaves);
417 h[2] = bond_lb_round_robin (vm, node, bif, b[2], n_slaves);
418 h[3] = bond_lb_round_robin (vm, node, bif, b[3], n_slaves);
420 else if (lb_alg == BOND_LB_BC)
422 h[0] = bond_lb_broadcast (vm, node, bif, b[0], n_slaves);
423 h[1] = bond_lb_broadcast (vm, node, bif, b[1], n_slaves);
424 h[2] = bond_lb_broadcast (vm, node, bif, b[2], n_slaves);
425 h[3] = bond_lb_broadcast (vm, node, bif, b[3], n_slaves);
439 VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[0]);
441 if (bif->lb == BOND_LB_L2)
442 h[0] = bond_lb_l2 (vm, node, bif, b[0], n_slaves);
443 else if (bif->lb == BOND_LB_L34)
444 h[0] = bond_lb_l34 (vm, node, bif, b[0], n_slaves);
445 else if (bif->lb == BOND_LB_L23)
446 h[0] = bond_lb_l23 (vm, node, bif, b[0], n_slaves);
447 else if (bif->lb == BOND_LB_RR)
448 h[0] = bond_lb_round_robin (vm, node, bif, b[0], n_slaves);
449 else if (bif->lb == BOND_LB_BC)
450 h[0] = bond_lb_broadcast (vm, node, bif, b[0], n_slaves);
461 static_always_inline void
462 bond_hash_to_port (u32 * h, u32 n_left, u32 n_slaves, int use_modulo_shortcut)
464 u32 mask = n_slaves - 1;
466 #ifdef CLIB_HAVE_VEC256
467 /* only lower 16 bits of hash due to single precision fp arithmetics */
468 u32x8 mask8, sc8u, h8a, h8b;
471 if (use_modulo_shortcut)
473 mask8 = u32x8_splat (mask);
477 mask8 = u32x8_splat (0xffff);
478 sc8u = u32x8_splat (n_slaves);
479 sc8f = f32x8_from_u32x8 (sc8u);
484 h8a = u32x8_load_unaligned (h) & mask8;
485 h8b = u32x8_load_unaligned (h + 8) & mask8;
487 if (use_modulo_shortcut == 0)
489 h8a -= sc8u * u32x8_from_f32x8 (f32x8_from_u32x8 (h8a) / sc8f);
490 h8b -= sc8u * u32x8_from_f32x8 (f32x8_from_u32x8 (h8b) / sc8f);
493 u32x8_store_unaligned (h8a, h);
494 u32x8_store_unaligned (h8b, h + 8);
502 if (use_modulo_shortcut)
521 if (use_modulo_shortcut)
530 static_always_inline void
531 bond_update_sw_if_index (bond_per_thread_data_t * ptd, bond_if_t * bif,
532 u32 * bi, vlib_buffer_t ** b, u32 * data, u32 n_left,
533 int single_sw_if_index)
535 u32 sw_if_index = data[0];
540 // Prefetch next iteration
543 vlib_buffer_t **pb = b + 4;
544 vlib_prefetch_buffer_header (pb[0], LOAD);
545 vlib_prefetch_buffer_header (pb[1], LOAD);
546 vlib_prefetch_buffer_header (pb[2], LOAD);
547 vlib_prefetch_buffer_header (pb[3], LOAD);
550 if (PREDICT_FALSE (single_sw_if_index))
552 vnet_buffer (b[0])->sw_if_index[VLIB_TX] = sw_if_index;
553 vnet_buffer (b[1])->sw_if_index[VLIB_TX] = sw_if_index;
554 vnet_buffer (b[2])->sw_if_index[VLIB_TX] = sw_if_index;
555 vnet_buffer (b[3])->sw_if_index[VLIB_TX] = sw_if_index;
557 bond_tx_add_to_queue (ptd, 0, bi[0]);
558 bond_tx_add_to_queue (ptd, 0, bi[1]);
559 bond_tx_add_to_queue (ptd, 0, bi[2]);
560 bond_tx_add_to_queue (ptd, 0, bi[3]);
566 sw_if_index[0] = *vec_elt_at_index (bif->active_slaves, h[0]);
567 sw_if_index[1] = *vec_elt_at_index (bif->active_slaves, h[1]);
568 sw_if_index[2] = *vec_elt_at_index (bif->active_slaves, h[2]);
569 sw_if_index[3] = *vec_elt_at_index (bif->active_slaves, h[3]);
571 vnet_buffer (b[0])->sw_if_index[VLIB_TX] = sw_if_index[0];
572 vnet_buffer (b[1])->sw_if_index[VLIB_TX] = sw_if_index[1];
573 vnet_buffer (b[2])->sw_if_index[VLIB_TX] = sw_if_index[2];
574 vnet_buffer (b[3])->sw_if_index[VLIB_TX] = sw_if_index[3];
576 bond_tx_add_to_queue (ptd, h[0], bi[0]);
577 bond_tx_add_to_queue (ptd, h[1], bi[1]);
578 bond_tx_add_to_queue (ptd, h[2], bi[2]);
579 bond_tx_add_to_queue (ptd, h[3], bi[3]);
589 if (PREDICT_FALSE (single_sw_if_index))
591 vnet_buffer (b[0])->sw_if_index[VLIB_TX] = sw_if_index;
592 bond_tx_add_to_queue (ptd, 0, bi[0]);
596 u32 sw_if_index0 = *vec_elt_at_index (bif->active_slaves, h[0]);
598 vnet_buffer (b[0])->sw_if_index[VLIB_TX] = sw_if_index0;
599 bond_tx_add_to_queue (ptd, h[0], bi[0]);
609 static_always_inline void
610 bond_tx_trace (vlib_main_t * vm, vlib_node_runtime_t * node, bond_if_t * bif,
611 vlib_buffer_t ** b, u32 n_left, u32 * h)
613 uword n_trace = vlib_get_trace_count (vm, node);
615 while (n_trace > 0 && n_left > 0)
617 bond_packet_trace_t *t0;
618 ethernet_header_t *eth;
621 vlib_trace_buffer (vm, node, next0, b[0], 0 /* follow_chain */ );
622 vlib_set_trace_count (vm, node, --n_trace);
623 t0 = vlib_add_trace (vm, node, b[0], sizeof (*t0));
624 eth = (ethernet_header_t *) vlib_buffer_get_current (b[0]);
626 t0->sw_if_index = vnet_buffer (b[0])->sw_if_index[VLIB_TX];
629 t0->bond_sw_if_index = *vec_elt_at_index (bif->active_slaves, 0);
633 t0->bond_sw_if_index = *vec_elt_at_index (bif->active_slaves, h[0]);
641 VNET_DEVICE_CLASS_TX_FN (bond_dev_class) (vlib_main_t * vm,
642 vlib_node_runtime_t * node,
643 vlib_frame_t * frame)
645 vnet_interface_output_runtime_t *rund = (void *) node->runtime_data;
646 bond_main_t *bm = &bond_main;
647 u16 thread_index = vm->thread_index;
648 bond_if_t *bif = pool_elt_at_index (bm->interfaces, rund->dev_instance);
650 vlib_buffer_t *bufs[VLIB_FRAME_SIZE];
651 u32 *from = vlib_frame_vector_args (frame);
652 u32 n_left = frame->n_vectors;
653 u32 hashes[VLIB_FRAME_SIZE], *h;
654 vnet_main_t *vnm = vnet_get_main ();
655 bond_per_thread_data_t *ptd = vec_elt_at_index (bm->per_thread_data,
659 if (PREDICT_FALSE (bif->admin_up == 0))
661 vlib_buffer_free (vm, vlib_frame_vector_args (frame), frame->n_vectors);
662 vlib_increment_simple_counter (vnet_main.interface_main.sw_if_counters +
663 VNET_INTERFACE_COUNTER_DROP,
664 thread_index, bif->sw_if_index,
666 vlib_error_count (vm, node->node_index, BOND_TX_ERROR_IF_DOWN,
668 return frame->n_vectors;
671 n_slaves = vec_len (bif->active_slaves);
672 if (PREDICT_FALSE (n_slaves == 0))
674 vlib_buffer_free (vm, vlib_frame_vector_args (frame), frame->n_vectors);
675 vlib_increment_simple_counter (vnet_main.interface_main.sw_if_counters +
676 VNET_INTERFACE_COUNTER_DROP,
677 thread_index, bif->sw_if_index,
679 vlib_error_count (vm, node->node_index, BOND_TX_ERROR_NO_SLAVE,
681 return frame->n_vectors;
684 vlib_get_buffers (vm, from, bufs, n_left);
686 /* active-backup mode, ship everyting to first sw if index */
687 if ((bif->lb == BOND_LB_AB) || PREDICT_FALSE (n_slaves == 1))
689 sw_if_index = *vec_elt_at_index (bif->active_slaves, 0);
691 bond_tx_trace (vm, node, bif, bufs, frame->n_vectors, 0);
692 bond_update_sw_if_index (ptd, bif, from, bufs, &sw_if_index, n_left,
693 /* single_sw_if_index */ 1);
697 if (bif->lb == BOND_LB_BC)
699 sw_if_index = *vec_elt_at_index (bif->active_slaves, 0);
701 bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves,
703 bond_tx_trace (vm, node, bif, bufs, frame->n_vectors, 0);
704 bond_update_sw_if_index (ptd, bif, from, bufs, &sw_if_index, n_left,
705 /* single_sw_if_index */ 1);
709 if (bif->lb == BOND_LB_L2)
710 bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves,
712 else if (bif->lb == BOND_LB_L34)
713 bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves,
715 else if (bif->lb == BOND_LB_L23)
716 bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves,
718 else if (bif->lb == BOND_LB_RR)
719 bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves,
724 /* calculate port out of hash */
726 if (BOND_MODULO_SHORTCUT (n_slaves))
727 bond_hash_to_port (h, frame->n_vectors, n_slaves, 1);
729 bond_hash_to_port (h, frame->n_vectors, n_slaves, 0);
731 bond_tx_trace (vm, node, bif, bufs, frame->n_vectors, h);
733 bond_update_sw_if_index (ptd, bif, from, bufs, hashes, frame->n_vectors,
734 /* single_sw_if_index */ 0);
737 for (p = 0; p < n_slaves; p++)
742 sw_if_index = *vec_elt_at_index (bif->active_slaves, p);
743 if (PREDICT_TRUE (ptd->per_port_queue[p].n_buffers))
745 f = vnet_get_frame_to_sw_interface (vnm, sw_if_index);
746 f->n_vectors = ptd->per_port_queue[p].n_buffers;
747 to_next = vlib_frame_vector_args (f);
748 clib_memcpy_fast (to_next, ptd->per_port_queue[p].buffers,
749 f->n_vectors * sizeof (u32));
750 vnet_put_frame_to_sw_interface (vnm, sw_if_index, f);
751 ptd->per_port_queue[p].n_buffers = 0;
755 vlib_increment_simple_counter (vnet_main.interface_main.sw_if_counters
756 + VNET_INTERFACE_COUNTER_TX, thread_index,
757 bif->sw_if_index, frame->n_vectors);
759 return frame->n_vectors;
763 bond_active_interface_switch_cb (vnet_main_t * vnm, u32 sw_if_index,
766 bond_main_t *bm = &bond_main;
768 send_ip4_garp (bm->vlib_main, sw_if_index);
769 send_ip6_na (bm->vlib_main, sw_if_index);
771 return (WALK_CONTINUE);
775 bond_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
777 vnet_main_t *vnm = vnet_get_main ();
778 uword event_type, *event_data = 0;
785 vlib_process_wait_for_event (vm);
786 event_type = vlib_process_get_events (vm, &event_data);
787 ASSERT (event_type == BOND_SEND_GARP_NA);
788 for (i = 0; i < vec_len (event_data); i++)
790 hw_if_index = event_data[i];
791 /* walk hw interface to process all subinterfaces */
792 vnet_hw_interface_walk_sw (vnm, hw_if_index,
793 bond_active_interface_switch_cb, 0);
795 vec_reset_length (event_data);
801 VLIB_REGISTER_NODE (bond_process_node) = {
802 .function = bond_process,
803 .type = VLIB_NODE_TYPE_PROCESS,
804 .name = "bond-process",
809 VNET_DEVICE_CLASS (bond_dev_class) = {
811 .tx_function_n_errors = BOND_TX_N_ERROR,
812 .tx_function_error_strings = bond_tx_error_strings,
813 .format_device_name = format_bond_interface_name,
814 .set_l2_mode_function = bond_set_l2_mode_function,
815 .admin_up_down_function = bond_interface_admin_up_down,
816 .subif_add_del_function = bond_subif_add_del_function,
817 .format_tx_trace = format_bond_tx_trace,
823 * fd.io coding-style-patch-verification: ON
826 * eval: (c-set-style "gnu")