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->id);
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);
111 static __clib_unused clib_error_t *
112 bond_subif_add_del_function (vnet_main_t * vnm, u32 hw_if_index,
113 struct vnet_sw_interface_t *st, int is_add)
115 /* Nothing for now */
119 static clib_error_t *
120 bond_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
122 vnet_hw_interface_t *hif = vnet_get_hw_interface (vnm, hw_if_index);
123 uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
124 bond_main_t *bm = &bond_main;
125 bond_if_t *bif = pool_elt_at_index (bm->interfaces, hif->dev_instance);
127 bif->admin_up = is_up;
128 if (is_up && vec_len (bif->active_slaves))
129 vnet_hw_interface_set_flags (vnm, bif->hw_if_index,
130 VNET_HW_INTERFACE_FLAG_LINK_UP);
134 static_always_inline void
135 bond_tx_add_to_queue (bond_per_thread_data_t * ptd, u32 port, u32 bi)
137 u32 idx = ptd->per_port_queue[port].n_buffers++;
138 ptd->per_port_queue[port].buffers[idx] = bi;
141 static_always_inline u32
142 bond_lb_broadcast (vlib_main_t * vm, vlib_node_runtime_t * node,
143 bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves)
145 bond_main_t *bm = &bond_main;
149 u16 thread_index = vm->thread_index;
150 bond_per_thread_data_t *ptd = vec_elt_at_index (bm->per_thread_data,
153 for (port = 1; port < n_slaves; port++)
155 sw_if_index = *vec_elt_at_index (bif->active_slaves, port);
156 c0 = vlib_buffer_copy (vm, b0);
157 if (PREDICT_TRUE (c0 != 0))
159 vnet_buffer (c0)->sw_if_index[VLIB_TX] = sw_if_index;
160 bond_tx_add_to_queue (ptd, port, vlib_get_buffer_index (vm, c0));
167 static_always_inline u32
168 bond_lb_l2 (vlib_main_t * vm, vlib_node_runtime_t * node,
169 bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves)
171 ethernet_header_t *eth = (ethernet_header_t *) vlib_buffer_get_current (b0);
172 u64 *dst = (u64 *) & eth->dst_address[0];
173 u64 a = clib_mem_unaligned (dst, u64);
174 u32 *src = (u32 *) & eth->src_address[2];
175 u32 b = clib_mem_unaligned (src, u32);
177 return lb_hash_hash_2_tuples (a, b);
180 static_always_inline u16 *
181 bond_locate_ethertype (ethernet_header_t * eth)
184 ethernet_vlan_header_t *vlan;
186 if (!ethernet_frame_is_tagged (clib_net_to_host_u16 (eth->type)))
188 ethertype_p = ð->type;
192 vlan = (void *) (eth + 1);
193 ethertype_p = &vlan->type;
194 if (*ethertype_p == ntohs (ETHERNET_TYPE_VLAN))
197 ethertype_p = &vlan->type;
203 static_always_inline u32
204 bond_lb_l23 (vlib_main_t * vm, vlib_node_runtime_t * node,
205 bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves)
207 ethernet_header_t *eth = (ethernet_header_t *) vlib_buffer_get_current (b0);
210 u16 ethertype, *ethertype_p;
211 u32 *mac1, *mac2, *mac3;
213 ethertype_p = bond_locate_ethertype (eth);
214 ethertype = clib_mem_unaligned (ethertype_p, u16);
216 if ((ethertype != htons (ETHERNET_TYPE_IP4)) &&
217 (ethertype != htons (ETHERNET_TYPE_IP6)))
218 return (bond_lb_l2 (vm, node, bif, b0, n_slaves));
220 ip4 = (ip4_header_t *) (ethertype_p + 1);
221 ip_version = (ip4->ip_version_and_header_length >> 4);
223 if (ip_version == 0x4)
227 mac1 = (u32 *) & eth->dst_address[0];
228 mac2 = (u32 *) & eth->dst_address[4];
229 mac3 = (u32 *) & eth->src_address[2];
231 a = clib_mem_unaligned (mac1, u32) ^ clib_mem_unaligned (mac2, u32) ^
232 clib_mem_unaligned (mac3, u32);
234 lb_hash_hash_2_tuples (clib_mem_unaligned (&ip4->address_pair, u64),
238 else if (ip_version == 0x6)
242 ip6_header_t *ip6 = (ip6_header_t *) (eth + 1);
244 mac1 = (u32 *) & eth->dst_address[0];
245 mac2 = (u32 *) & eth->dst_address[4];
246 mac3 = (u32 *) & eth->src_address[2];
248 a = clib_mem_unaligned (mac1, u32) ^ clib_mem_unaligned (mac2, u32) ^
249 clib_mem_unaligned (mac3, u32);
251 lb_hash_hash (clib_mem_unaligned
252 (&ip6->src_address.as_uword[0], uword),
253 clib_mem_unaligned (&ip6->src_address.as_uword[1],
255 clib_mem_unaligned (&ip6->dst_address.as_uword[0],
257 clib_mem_unaligned (&ip6->dst_address.as_uword[1],
261 return (bond_lb_l2 (vm, node, bif, b0, n_slaves));
264 static_always_inline u32
265 bond_lb_l34 (vlib_main_t * vm, vlib_node_runtime_t * node,
266 bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves)
268 ethernet_header_t *eth = (ethernet_header_t *) vlib_buffer_get_current (b0);
272 u16 ethertype, *ethertype_p;
274 ethertype_p = bond_locate_ethertype (eth);
275 ethertype = clib_mem_unaligned (ethertype_p, u16);
277 if ((ethertype != htons (ETHERNET_TYPE_IP4)) &&
278 (ethertype != htons (ETHERNET_TYPE_IP6)))
279 return (bond_lb_l2 (vm, node, bif, b0, n_slaves));
281 ip4 = (ip4_header_t *) (ethertype_p + 1);
282 ip_version = (ip4->ip_version_and_header_length >> 4);
284 if (ip_version == 0x4)
287 tcp_header_t *tcp = (void *) (ip4 + 1);
289 is_tcp_udp = (ip4->protocol == IP_PROTOCOL_TCP) ||
290 (ip4->protocol == IP_PROTOCOL_UDP);
291 t1 = is_tcp_udp ? clib_mem_unaligned (&tcp->src, u16) : 0;
292 t2 = is_tcp_udp ? clib_mem_unaligned (&tcp->dst, u16) : 0;
295 lb_hash_hash_2_tuples (clib_mem_unaligned (&ip4->address_pair, u64),
298 else if (ip_version == 0x6)
302 ip6_header_t *ip6 = (ip6_header_t *) (eth + 1);
303 tcp_header_t *tcp = (void *) (ip6 + 1);
306 if (PREDICT_TRUE ((ip6->protocol == IP_PROTOCOL_TCP) ||
307 (ip6->protocol == IP_PROTOCOL_UDP)))
310 tcp = (void *) (ip6 + 1);
312 else if (ip6->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)
314 ip6_hop_by_hop_header_t *hbh =
315 (ip6_hop_by_hop_header_t *) (ip6 + 1);
316 if ((hbh->protocol == IP_PROTOCOL_TCP)
317 || (hbh->protocol == IP_PROTOCOL_UDP))
320 tcp = (tcp_header_t *) ((u8 *) hbh + ((hbh->length + 1) << 3));
323 t1 = is_tcp_udp ? clib_mem_unaligned (&tcp->src, u16) : 0;
324 t2 = is_tcp_udp ? clib_mem_unaligned (&tcp->dst, u16) : 0;
327 lb_hash_hash (clib_mem_unaligned
328 (&ip6->src_address.as_uword[0], uword),
329 clib_mem_unaligned (&ip6->src_address.as_uword[1],
331 clib_mem_unaligned (&ip6->dst_address.as_uword[0],
333 clib_mem_unaligned (&ip6->dst_address.as_uword[1],
338 return (bond_lb_l2 (vm, node, bif, b0, n_slaves));
341 static_always_inline u32
342 bond_lb_round_robin (vlib_main_t * vm,
343 vlib_node_runtime_t * node,
344 bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves)
346 bif->lb_rr_last_index++;
347 if (bif->lb_rr_last_index >= n_slaves)
348 bif->lb_rr_last_index = 0;
350 return bif->lb_rr_last_index;
353 static_always_inline void
354 bond_tx_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
355 bond_if_t * bif, vlib_buffer_t ** b,
356 u32 * h, u32 n_left, uword n_slaves, u32 lb_alg)
360 // Prefetch next iteration
363 vlib_buffer_t **pb = b + 4;
365 vlib_prefetch_buffer_header (pb[0], LOAD);
366 vlib_prefetch_buffer_header (pb[1], LOAD);
367 vlib_prefetch_buffer_header (pb[2], LOAD);
368 vlib_prefetch_buffer_header (pb[3], LOAD);
370 CLIB_PREFETCH (pb[0]->data, CLIB_CACHE_LINE_BYTES, LOAD);
371 CLIB_PREFETCH (pb[1]->data, CLIB_CACHE_LINE_BYTES, LOAD);
372 CLIB_PREFETCH (pb[2]->data, CLIB_CACHE_LINE_BYTES, LOAD);
373 CLIB_PREFETCH (pb[3]->data, CLIB_CACHE_LINE_BYTES, LOAD);
376 VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[0]);
377 VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[1]);
378 VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[2]);
379 VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[3]);
381 if (lb_alg == BOND_LB_L2)
383 h[0] = bond_lb_l2 (vm, node, bif, b[0], n_slaves);
384 h[1] = bond_lb_l2 (vm, node, bif, b[1], n_slaves);
385 h[2] = bond_lb_l2 (vm, node, bif, b[2], n_slaves);
386 h[3] = bond_lb_l2 (vm, node, bif, b[3], n_slaves);
388 else if (lb_alg == BOND_LB_L34)
390 h[0] = bond_lb_l34 (vm, node, bif, b[0], n_slaves);
391 h[1] = bond_lb_l34 (vm, node, bif, b[1], n_slaves);
392 h[2] = bond_lb_l34 (vm, node, bif, b[2], n_slaves);
393 h[3] = bond_lb_l34 (vm, node, bif, b[3], n_slaves);
395 else if (lb_alg == BOND_LB_L23)
397 h[0] = bond_lb_l23 (vm, node, bif, b[0], n_slaves);
398 h[1] = bond_lb_l23 (vm, node, bif, b[1], n_slaves);
399 h[2] = bond_lb_l23 (vm, node, bif, b[2], n_slaves);
400 h[3] = bond_lb_l23 (vm, node, bif, b[3], n_slaves);
402 else if (lb_alg == BOND_LB_RR)
404 h[0] = bond_lb_round_robin (vm, node, bif, b[0], n_slaves);
405 h[1] = bond_lb_round_robin (vm, node, bif, b[1], n_slaves);
406 h[2] = bond_lb_round_robin (vm, node, bif, b[2], n_slaves);
407 h[3] = bond_lb_round_robin (vm, node, bif, b[3], n_slaves);
409 else if (lb_alg == BOND_LB_BC)
411 h[0] = bond_lb_broadcast (vm, node, bif, b[0], n_slaves);
412 h[1] = bond_lb_broadcast (vm, node, bif, b[1], n_slaves);
413 h[2] = bond_lb_broadcast (vm, node, bif, b[2], n_slaves);
414 h[3] = bond_lb_broadcast (vm, node, bif, b[3], n_slaves);
428 VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[0]);
430 if (bif->lb == BOND_LB_L2)
431 h[0] = bond_lb_l2 (vm, node, bif, b[0], n_slaves);
432 else if (bif->lb == BOND_LB_L34)
433 h[0] = bond_lb_l34 (vm, node, bif, b[0], n_slaves);
434 else if (bif->lb == BOND_LB_L23)
435 h[0] = bond_lb_l23 (vm, node, bif, b[0], n_slaves);
436 else if (bif->lb == BOND_LB_RR)
437 h[0] = bond_lb_round_robin (vm, node, bif, b[0], n_slaves);
438 else if (bif->lb == BOND_LB_BC)
439 h[0] = bond_lb_broadcast (vm, node, bif, b[0], n_slaves);
450 static_always_inline void
451 bond_hash_to_port (u32 * h, u32 n_left, u32 n_slaves, int use_modulo_shortcut)
453 u32 mask = n_slaves - 1;
455 #ifdef CLIB_HAVE_VEC256
456 /* only lower 16 bits of hash due to single precision fp arithmetic */
457 u32x8 mask8, sc8u, h8a, h8b;
460 if (use_modulo_shortcut)
462 mask8 = u32x8_splat (mask);
466 mask8 = u32x8_splat (0xffff);
467 sc8u = u32x8_splat (n_slaves);
468 sc8f = f32x8_from_u32x8 (sc8u);
473 h8a = u32x8_load_unaligned (h) & mask8;
474 h8b = u32x8_load_unaligned (h + 8) & mask8;
476 if (use_modulo_shortcut == 0)
478 h8a -= sc8u * u32x8_from_f32x8 (f32x8_from_u32x8 (h8a) / sc8f);
479 h8b -= sc8u * u32x8_from_f32x8 (f32x8_from_u32x8 (h8b) / sc8f);
482 u32x8_store_unaligned (h8a, h);
483 u32x8_store_unaligned (h8b, h + 8);
491 if (use_modulo_shortcut)
510 if (use_modulo_shortcut)
519 static_always_inline void
520 bond_update_sw_if_index (bond_per_thread_data_t * ptd, bond_if_t * bif,
521 u32 * bi, vlib_buffer_t ** b, u32 * data, u32 n_left,
522 int single_sw_if_index)
524 u32 sw_if_index = data[0];
529 // Prefetch next iteration
532 vlib_buffer_t **pb = b + 4;
533 vlib_prefetch_buffer_header (pb[0], LOAD);
534 vlib_prefetch_buffer_header (pb[1], LOAD);
535 vlib_prefetch_buffer_header (pb[2], LOAD);
536 vlib_prefetch_buffer_header (pb[3], LOAD);
539 if (PREDICT_FALSE (single_sw_if_index))
541 vnet_buffer (b[0])->sw_if_index[VLIB_TX] = sw_if_index;
542 vnet_buffer (b[1])->sw_if_index[VLIB_TX] = sw_if_index;
543 vnet_buffer (b[2])->sw_if_index[VLIB_TX] = sw_if_index;
544 vnet_buffer (b[3])->sw_if_index[VLIB_TX] = sw_if_index;
546 bond_tx_add_to_queue (ptd, 0, bi[0]);
547 bond_tx_add_to_queue (ptd, 0, bi[1]);
548 bond_tx_add_to_queue (ptd, 0, bi[2]);
549 bond_tx_add_to_queue (ptd, 0, bi[3]);
555 sw_if_index[0] = *vec_elt_at_index (bif->active_slaves, h[0]);
556 sw_if_index[1] = *vec_elt_at_index (bif->active_slaves, h[1]);
557 sw_if_index[2] = *vec_elt_at_index (bif->active_slaves, h[2]);
558 sw_if_index[3] = *vec_elt_at_index (bif->active_slaves, h[3]);
560 vnet_buffer (b[0])->sw_if_index[VLIB_TX] = sw_if_index[0];
561 vnet_buffer (b[1])->sw_if_index[VLIB_TX] = sw_if_index[1];
562 vnet_buffer (b[2])->sw_if_index[VLIB_TX] = sw_if_index[2];
563 vnet_buffer (b[3])->sw_if_index[VLIB_TX] = sw_if_index[3];
565 bond_tx_add_to_queue (ptd, h[0], bi[0]);
566 bond_tx_add_to_queue (ptd, h[1], bi[1]);
567 bond_tx_add_to_queue (ptd, h[2], bi[2]);
568 bond_tx_add_to_queue (ptd, h[3], bi[3]);
578 if (PREDICT_FALSE (single_sw_if_index))
580 vnet_buffer (b[0])->sw_if_index[VLIB_TX] = sw_if_index;
581 bond_tx_add_to_queue (ptd, 0, bi[0]);
585 u32 sw_if_index0 = *vec_elt_at_index (bif->active_slaves, h[0]);
587 vnet_buffer (b[0])->sw_if_index[VLIB_TX] = sw_if_index0;
588 bond_tx_add_to_queue (ptd, h[0], bi[0]);
598 static_always_inline void
599 bond_tx_trace (vlib_main_t * vm, vlib_node_runtime_t * node, bond_if_t * bif,
600 vlib_buffer_t ** b, u32 n_left, u32 * h)
602 uword n_trace = vlib_get_trace_count (vm, node);
604 while (n_trace > 0 && n_left > 0)
606 bond_packet_trace_t *t0;
607 ethernet_header_t *eth;
610 vlib_trace_buffer (vm, node, next0, b[0], 0 /* follow_chain */ );
611 vlib_set_trace_count (vm, node, --n_trace);
612 t0 = vlib_add_trace (vm, node, b[0], sizeof (*t0));
613 eth = (ethernet_header_t *) vlib_buffer_get_current (b[0]);
615 t0->sw_if_index = vnet_buffer (b[0])->sw_if_index[VLIB_TX];
618 t0->bond_sw_if_index = *vec_elt_at_index (bif->active_slaves, 0);
622 t0->bond_sw_if_index = *vec_elt_at_index (bif->active_slaves, h[0]);
630 VNET_DEVICE_CLASS_TX_FN (bond_dev_class) (vlib_main_t * vm,
631 vlib_node_runtime_t * node,
632 vlib_frame_t * frame)
634 vnet_interface_output_runtime_t *rund = (void *) node->runtime_data;
635 bond_main_t *bm = &bond_main;
636 u16 thread_index = vm->thread_index;
637 bond_if_t *bif = pool_elt_at_index (bm->interfaces, rund->dev_instance);
639 vlib_buffer_t *bufs[VLIB_FRAME_SIZE];
640 u32 *from = vlib_frame_vector_args (frame);
641 u32 n_left = frame->n_vectors;
642 u32 hashes[VLIB_FRAME_SIZE], *h;
643 vnet_main_t *vnm = vnet_get_main ();
644 bond_per_thread_data_t *ptd = vec_elt_at_index (bm->per_thread_data,
648 if (PREDICT_FALSE (bif->admin_up == 0))
650 vlib_buffer_free (vm, vlib_frame_vector_args (frame), frame->n_vectors);
651 vlib_increment_simple_counter (vnet_main.interface_main.sw_if_counters +
652 VNET_INTERFACE_COUNTER_DROP,
653 thread_index, bif->sw_if_index,
655 vlib_error_count (vm, node->node_index, BOND_TX_ERROR_IF_DOWN,
657 return frame->n_vectors;
660 n_slaves = vec_len (bif->active_slaves);
661 if (PREDICT_FALSE (n_slaves == 0))
663 vlib_buffer_free (vm, vlib_frame_vector_args (frame), frame->n_vectors);
664 vlib_increment_simple_counter (vnet_main.interface_main.sw_if_counters +
665 VNET_INTERFACE_COUNTER_DROP,
666 thread_index, bif->sw_if_index,
668 vlib_error_count (vm, node->node_index, BOND_TX_ERROR_NO_SLAVE,
670 return frame->n_vectors;
673 vlib_get_buffers (vm, from, bufs, n_left);
675 /* active-backup mode, ship everything to first sw if index */
676 if ((bif->lb == BOND_LB_AB) || PREDICT_FALSE (n_slaves == 1))
678 sw_if_index = *vec_elt_at_index (bif->active_slaves, 0);
680 bond_tx_trace (vm, node, bif, bufs, frame->n_vectors, 0);
681 bond_update_sw_if_index (ptd, bif, from, bufs, &sw_if_index, n_left,
682 /* single_sw_if_index */ 1);
686 if (bif->lb == BOND_LB_BC)
688 sw_if_index = *vec_elt_at_index (bif->active_slaves, 0);
690 bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves,
692 bond_tx_trace (vm, node, bif, bufs, frame->n_vectors, 0);
693 bond_update_sw_if_index (ptd, bif, from, bufs, &sw_if_index, n_left,
694 /* single_sw_if_index */ 1);
698 if (bif->lb == BOND_LB_L2)
699 bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves,
701 else if (bif->lb == BOND_LB_L34)
702 bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves,
704 else if (bif->lb == BOND_LB_L23)
705 bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves,
707 else if (bif->lb == BOND_LB_RR)
708 bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves,
713 /* calculate port out of hash */
715 if (BOND_MODULO_SHORTCUT (n_slaves))
716 bond_hash_to_port (h, frame->n_vectors, n_slaves, 1);
718 bond_hash_to_port (h, frame->n_vectors, n_slaves, 0);
720 bond_tx_trace (vm, node, bif, bufs, frame->n_vectors, h);
722 bond_update_sw_if_index (ptd, bif, from, bufs, hashes, frame->n_vectors,
723 /* single_sw_if_index */ 0);
726 for (p = 0; p < n_slaves; p++)
731 sw_if_index = *vec_elt_at_index (bif->active_slaves, p);
732 if (PREDICT_TRUE (ptd->per_port_queue[p].n_buffers))
734 f = vnet_get_frame_to_sw_interface (vnm, sw_if_index);
735 f->n_vectors = ptd->per_port_queue[p].n_buffers;
736 to_next = vlib_frame_vector_args (f);
737 clib_memcpy_fast (to_next, ptd->per_port_queue[p].buffers,
738 f->n_vectors * sizeof (u32));
739 vnet_put_frame_to_sw_interface (vnm, sw_if_index, f);
740 ptd->per_port_queue[p].n_buffers = 0;
744 vlib_increment_simple_counter (vnet_main.interface_main.sw_if_counters
745 + VNET_INTERFACE_COUNTER_TX, thread_index,
746 bif->sw_if_index, frame->n_vectors);
748 return frame->n_vectors;
752 bond_active_interface_switch_cb (vnet_main_t * vnm, u32 sw_if_index,
755 bond_main_t *bm = &bond_main;
757 send_ip4_garp (bm->vlib_main, sw_if_index);
758 send_ip6_na (bm->vlib_main, sw_if_index);
760 return (WALK_CONTINUE);
764 bond_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
766 vnet_main_t *vnm = vnet_get_main ();
767 uword event_type, *event_data = 0;
774 vlib_process_wait_for_event (vm);
775 event_type = vlib_process_get_events (vm, &event_data);
776 ASSERT (event_type == BOND_SEND_GARP_NA);
777 for (i = 0; i < vec_len (event_data); i++)
779 hw_if_index = event_data[i];
780 /* walk hw interface to process all subinterfaces */
781 vnet_hw_interface_walk_sw (vnm, hw_if_index,
782 bond_active_interface_switch_cb, 0);
784 vec_reset_length (event_data);
790 VLIB_REGISTER_NODE (bond_process_node) = {
791 .function = bond_process,
792 .type = VLIB_NODE_TYPE_PROCESS,
793 .name = "bond-process",
798 VNET_DEVICE_CLASS (bond_dev_class) = {
800 .tx_function_n_errors = BOND_TX_N_ERROR,
801 .tx_function_error_strings = bond_tx_error_strings,
802 .format_device_name = format_bond_interface_name,
803 .set_l2_mode_function = bond_set_l2_mode_function,
804 .admin_up_down_function = bond_interface_admin_up_down,
805 .subif_add_del_function = bond_subif_add_del_function,
806 .format_tx_trace = format_bond_tx_trace,
812 * fd.io coding-style-patch-verification: ON
815 * eval: (c-set-style "gnu")