summaryrefslogtreecommitdiffstats
path: root/src/vnet/bonding/device.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/vnet/bonding/device.c')
-rw-r--r--src/vnet/bonding/device.c610
1 files changed, 610 insertions, 0 deletions
diff --git a/src/vnet/bonding/device.c b/src/vnet/bonding/device.c
new file mode 100644
index 00000000000..8f9b3a95591
--- /dev/null
+++ b/src/vnet/bonding/device.c
@@ -0,0 +1,610 @@
+/*
+ *------------------------------------------------------------------
+ * 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>
+
+#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;
+}
+
+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;
+}
+
+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 inline u32
+bond_load_balance_broadcast (vlib_main_t * vm, vlib_node_runtime_t * node,
+ bond_if_t * bif, vlib_buffer_t * b0)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ vlib_buffer_t *c0;
+ int i;
+ u32 *to_next = 0;
+ u32 sw_if_index;
+ vlib_frame_t *f;
+
+
+ for (i = 1; i < vec_len (bif->active_slaves); i++)
+ {
+ sw_if_index = *vec_elt_at_index (bif->active_slaves, i);
+ f = vnet_get_frame_to_sw_interface (vnm, sw_if_index);
+ to_next = vlib_frame_vector_args (f);
+ to_next += f->n_vectors;
+ c0 = vlib_buffer_copy (vm, b0);
+ if (PREDICT_TRUE (c0 != 0))
+ {
+ vnet_buffer (c0)->sw_if_index[VLIB_TX] = sw_if_index;
+ to_next[0] = vlib_get_buffer_index (vm, c0);
+ f->n_vectors++;
+ vnet_put_frame_to_sw_interface (vnm, sw_if_index, f);
+ }
+ }
+
+ return 0;
+}
+
+static inline u32
+bond_load_balance_l2 (vlib_main_t * vm, vlib_node_runtime_t * node,
+ bond_if_t * bif, vlib_buffer_t * b0)
+{
+ ethernet_header_t *eth = (ethernet_header_t *) vlib_buffer_get_current (b0);
+ u32 a = 0, b = 0, c = 0, t1, t2;
+ u16 t11, t22;
+
+ memcpy (&t1, eth->src_address, sizeof (t1));
+ memcpy (&t11, &eth->src_address[4], sizeof (t11));
+ a = t1 ^ t11;
+
+ memcpy (&t2, eth->dst_address, sizeof (t2));
+ memcpy (&t22, &eth->dst_address[4], sizeof (t22));
+ b = t2 ^ t22;
+
+ hash_v3_mix32 (a, b, c);
+ hash_v3_finalize32 (a, b, c);
+
+ return c % vec_len (bif->active_slaves);
+}
+
+static 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 inline u32
+bond_load_balance_l23 (vlib_main_t * vm, vlib_node_runtime_t * node,
+ bond_if_t * bif, vlib_buffer_t * b0)
+{
+ ethernet_header_t *eth = (ethernet_header_t *) vlib_buffer_get_current (b0);
+ u8 ip_version;
+ ip4_header_t *ip4;
+ u16 ethertype, *ethertype_p;
+
+ ethertype_p = bond_locate_ethertype (eth);
+ ethertype = *ethertype_p;
+
+ if ((ethertype != htons (ETHERNET_TYPE_IP4)) &&
+ (ethertype != htons (ETHERNET_TYPE_IP6)))
+ return (bond_load_balance_l2 (vm, node, bif, b0));
+
+ ip4 = (ip4_header_t *) (ethertype_p + 1);
+ ip_version = (ip4->ip_version_and_header_length >> 4);
+
+ if (ip_version == 0x4)
+ {
+ u16 t11, t22;
+ u32 a = 0, b = 0, c = 0, t1, t2;
+
+ memcpy (&t1, eth->src_address, sizeof (t1));
+ memcpy (&t11, &eth->src_address[4], sizeof (t11));
+ a = t1 ^ t11;
+
+ memcpy (&t2, eth->dst_address, sizeof (t2));
+ memcpy (&t22, &eth->dst_address[4], sizeof (t22));
+ b = t2 ^ t22;
+
+ c = ip4->src_address.data_u32 ^ ip4->dst_address.data_u32;
+
+ hash_v3_mix32 (a, b, c);
+ hash_v3_finalize32 (a, b, c);
+
+ return c % vec_len (bif->active_slaves);
+ }
+ else if (ip_version == 0x6)
+ {
+ u64 a, b, c;
+ u64 t1 = 0, t2 = 0;
+ ip6_header_t *ip6 = (ip6_header_t *) (eth + 1);
+
+ memcpy (&t1, eth->src_address, sizeof (eth->src_address));
+ memcpy (&t2, eth->dst_address, sizeof (eth->dst_address));
+ a = t1 ^ t2;
+
+ b = (ip6->src_address.as_u64[0] ^ ip6->src_address.as_u64[1]);
+ c = (ip6->dst_address.as_u64[0] ^ ip6->dst_address.as_u64[1]);
+
+ hash_mix64 (a, b, c);
+ return c % vec_len (bif->active_slaves);
+ }
+ return (bond_load_balance_l2 (vm, node, bif, b0));
+}
+
+static inline u32
+bond_load_balance_l34 (vlib_main_t * vm, vlib_node_runtime_t * node,
+ bond_if_t * bif, vlib_buffer_t * b0)
+{
+ ethernet_header_t *eth = (ethernet_header_t *) vlib_buffer_get_current (b0);
+ u8 ip_version;
+ uword is_tcp_udp = 0;
+ ip4_header_t *ip4;
+ u16 ethertype, *ethertype_p;
+
+ ethertype_p = bond_locate_ethertype (eth);
+ ethertype = *ethertype_p;
+
+ if ((ethertype != htons (ETHERNET_TYPE_IP4)) &&
+ (ethertype != htons (ETHERNET_TYPE_IP6)))
+ return (bond_load_balance_l2 (vm, node, bif, b0));
+
+ ip4 = (ip4_header_t *) (ethertype_p + 1);
+ ip_version = (ip4->ip_version_and_header_length >> 4);
+
+ if (ip_version == 0x4)
+ {
+ u32 a = 0, b = 0, c = 0, t1, t2;
+ tcp_header_t *tcp = (void *) (ip4 + 1);
+ is_tcp_udp = (ip4->protocol == IP_PROTOCOL_TCP) ||
+ (ip4->protocol == IP_PROTOCOL_UDP);
+
+ a = ip4->src_address.data_u32 ^ ip4->dst_address.data_u32;
+
+ t1 = is_tcp_udp ? tcp->src : 0;
+ t2 = is_tcp_udp ? tcp->dst : 0;
+ b = t1 + (t2 << 16);
+
+ hash_v3_mix32 (a, b, c);
+ hash_v3_finalize32 (a, b, c);
+
+ return c % vec_len (bif->active_slaves);
+ }
+ else if (ip_version == 0x6)
+ {
+ u64 a, b, c;
+ u64 t1, t2;
+ ip6_header_t *ip6 = (ip6_header_t *) (eth + 1);
+ tcp_header_t *tcp = (void *) (ip6 + 1);
+
+ 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));
+ }
+ }
+ a = (ip6->src_address.as_u64[0] ^ ip6->src_address.as_u64[1]);
+ b = (ip6->dst_address.as_u64[0] ^ ip6->dst_address.as_u64[1]);
+
+ t1 = is_tcp_udp ? tcp->src : 0;
+ t2 = is_tcp_udp ? tcp->dst : 0;
+ c = (t2 << 16) | t1;
+ hash_mix64 (a, b, c);
+
+ return c % vec_len (bif->active_slaves);
+ }
+
+ return (bond_load_balance_l2 (vm, node, bif, b0));
+}
+
+static inline u32
+bond_load_balance_round_robin (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ bond_if_t * bif, vlib_buffer_t * b0)
+{
+ bif->lb_rr_last_index++;
+ bif->lb_rr_last_index %= vec_len (bif->active_slaves);
+
+ return bif->lb_rr_last_index;
+}
+
+static inline u32
+bond_load_balance_active_backup (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ bond_if_t * bif, vlib_buffer_t * b0)
+{
+ /* First interface is the active, the rest is backup */
+ return 0;
+}
+
+static bond_load_balance_func_t bond_load_balance_table[] = {
+#define _(v,f,s, p) { bond_load_balance_##p },
+ foreach_bond_lb_algo
+#undef _
+};
+
+static uword
+bond_tx_fn (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;
+ bond_if_t *bif = pool_elt_at_index (bm->interfaces, rund->dev_instance);
+ u32 bi0, bi1, bi2, bi3;
+ vlib_buffer_t *b0, *b1, *b2, *b3;
+ u32 *from = vlib_frame_vector_args (frame);
+ u32 n_left_from;
+ ethernet_header_t *eth;
+ u32 next0 = 0, next1 = 0, next2 = 0, next3 = 0;
+ u32 port, port1, port2, port3;
+ u32 sw_if_index, sw_if_index1, sw_if_index2, sw_if_index3;
+ bond_packet_trace_t *t0;
+ uword n_trace = vlib_get_trace_count (vm, node);
+ u16 thread_index = vlib_get_thread_index ();
+ vnet_main_t *vnm = vnet_get_main ();
+ u32 *to_next, *to_next1, *to_next2, *to_next3;
+ u32 sif_if_index, sif_if_index1, sif_if_index2, sif_if_index3;
+ vlib_frame_t *f, *f1, *f2, *f3;
+
+ 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;
+ }
+
+ if (PREDICT_FALSE (vec_len (bif->active_slaves) == 0))
+ {
+ bi0 = from[0];
+ b0 = vlib_get_buffer (vm, bi0);
+ vlib_increment_combined_counter
+ (vnet_main.interface_main.combined_sw_if_counters
+ + VNET_INTERFACE_COUNTER_TX, thread_index, bif->sw_if_index,
+ frame->n_vectors, b0->current_length);
+
+ 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;
+ }
+
+ /* Number of buffers / pkts */
+ n_left_from = frame->n_vectors;
+
+ while (n_left_from >= 8)
+ {
+ // Prefetch next iteration
+ {
+ vlib_buffer_t *p4, *p5, *p6, *p7;
+
+ p4 = vlib_get_buffer (vm, from[4]);
+ p5 = vlib_get_buffer (vm, from[5]);
+ p6 = vlib_get_buffer (vm, from[6]);
+ p7 = vlib_get_buffer (vm, from[7]);
+
+ vlib_prefetch_buffer_header (p4, STORE);
+ vlib_prefetch_buffer_header (p5, STORE);
+ vlib_prefetch_buffer_header (p6, STORE);
+ vlib_prefetch_buffer_header (p7, STORE);
+
+ CLIB_PREFETCH (p4->data, CLIB_CACHE_LINE_BYTES, LOAD);
+ CLIB_PREFETCH (p5->data, CLIB_CACHE_LINE_BYTES, LOAD);
+ CLIB_PREFETCH (p6->data, CLIB_CACHE_LINE_BYTES, LOAD);
+ CLIB_PREFETCH (p7->data, CLIB_CACHE_LINE_BYTES, LOAD);
+ }
+
+ bi0 = from[0];
+ bi1 = from[1];
+ bi2 = from[2];
+ bi3 = from[3];
+
+ b0 = vlib_get_buffer (vm, bi0);
+ b1 = vlib_get_buffer (vm, bi1);
+ b2 = vlib_get_buffer (vm, bi2);
+ b3 = vlib_get_buffer (vm, bi3);
+
+ VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b0);
+ VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b1);
+ VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b2);
+ VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b3);
+
+ sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_TX];
+ sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_TX];
+ sw_if_index2 = vnet_buffer (b2)->sw_if_index[VLIB_TX];
+ sw_if_index3 = vnet_buffer (b3)->sw_if_index[VLIB_TX];
+
+ port =
+ (bond_load_balance_table[bif->lb]).load_balance (vm, node, bif, b0);
+ port1 =
+ (bond_load_balance_table[bif->lb]).load_balance (vm, node, bif, b1);
+ port2 =
+ (bond_load_balance_table[bif->lb]).load_balance (vm, node, bif, b2);
+ port3 =
+ (bond_load_balance_table[bif->lb]).load_balance (vm, node, bif, b3);
+
+ sif_if_index = *vec_elt_at_index (bif->active_slaves, port);
+ sif_if_index1 = *vec_elt_at_index (bif->active_slaves, port1);
+ sif_if_index2 = *vec_elt_at_index (bif->active_slaves, port2);
+ sif_if_index3 = *vec_elt_at_index (bif->active_slaves, port3);
+
+ vnet_buffer (b0)->sw_if_index[VLIB_TX] = sif_if_index;
+ vnet_buffer (b1)->sw_if_index[VLIB_TX] = sif_if_index1;
+ vnet_buffer (b2)->sw_if_index[VLIB_TX] = sif_if_index2;
+ vnet_buffer (b3)->sw_if_index[VLIB_TX] = sif_if_index3;
+
+ f = vnet_get_frame_to_sw_interface (vnm, sif_if_index);
+ f1 = vnet_get_frame_to_sw_interface (vnm, sif_if_index1);
+ f2 = vnet_get_frame_to_sw_interface (vnm, sif_if_index2);
+ f3 = vnet_get_frame_to_sw_interface (vnm, sif_if_index3);
+
+ to_next = vlib_frame_vector_args (f);
+ to_next1 = vlib_frame_vector_args (f1);
+ to_next2 = vlib_frame_vector_args (f2);
+ to_next3 = vlib_frame_vector_args (f3);
+
+ to_next += f->n_vectors;
+ to_next1 += f1->n_vectors;
+ to_next2 += f2->n_vectors;
+ to_next3 += f3->n_vectors;
+
+ to_next[0] = vlib_get_buffer_index (vm, b0);
+ to_next1[0] = vlib_get_buffer_index (vm, b1);
+ to_next2[0] = vlib_get_buffer_index (vm, b2);
+ to_next3[0] = vlib_get_buffer_index (vm, b3);
+
+ f->n_vectors++;
+ f1->n_vectors++;
+ f2->n_vectors++;
+ f3->n_vectors++;
+
+ vnet_put_frame_to_sw_interface (vnm, sif_if_index, f);
+ vnet_put_frame_to_sw_interface (vnm, sif_if_index1, f1);
+ vnet_put_frame_to_sw_interface (vnm, sif_if_index2, f2);
+ vnet_put_frame_to_sw_interface (vnm, sif_if_index3, f3);
+
+ if (PREDICT_FALSE (n_trace > 0))
+ {
+ vlib_trace_buffer (vm, node, next0, b0, 0 /* follow_chain */ );
+ vlib_set_trace_count (vm, node, --n_trace);
+ t0 = vlib_add_trace (vm, node, b0, sizeof (*t0));
+ eth = (ethernet_header_t *) vlib_buffer_get_current (b0);
+ t0->ethernet = *eth;
+ t0->sw_if_index = sw_if_index;
+ t0->bond_sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_TX];
+
+ if (PREDICT_TRUE (n_trace > 0))
+ {
+ vlib_trace_buffer (vm, node, next1, b1, 0 /* follow_chain */ );
+ vlib_set_trace_count (vm, node, --n_trace);
+ t0 = vlib_add_trace (vm, node, b1, sizeof (*t0));
+ eth = (ethernet_header_t *) vlib_buffer_get_current (b1);
+ t0->ethernet = *eth;
+ t0->sw_if_index = sw_if_index1;
+ t0->bond_sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_TX];
+
+ if (PREDICT_TRUE (n_trace > 0))
+ {
+ vlib_trace_buffer (vm, node, next2, b2,
+ 0 /* follow_chain */ );
+ vlib_set_trace_count (vm, node, --n_trace);
+ t0 = vlib_add_trace (vm, node, b2, sizeof (*t0));
+ eth = (ethernet_header_t *) vlib_buffer_get_current (b2);
+ t0->ethernet = *eth;
+ t0->sw_if_index = sw_if_index2;
+ t0->bond_sw_if_index =
+ vnet_buffer (b2)->sw_if_index[VLIB_TX];
+
+ if (PREDICT_TRUE (n_trace > 0))
+ {
+ vlib_trace_buffer (vm, node, next3, b3,
+ 0 /* follow_chain */ );
+ vlib_set_trace_count (vm, node, --n_trace);
+ t0 = vlib_add_trace (vm, node, b3, sizeof (*t0));
+ eth =
+ (ethernet_header_t *) vlib_buffer_get_current (b3);
+ t0->ethernet = *eth;
+ t0->sw_if_index = sw_if_index3;
+ t0->bond_sw_if_index =
+ vnet_buffer (b3)->sw_if_index[VLIB_TX];
+ }
+ }
+ }
+ }
+
+ from += 4;
+ n_left_from -= 4;
+ }
+
+ while (n_left_from > 0)
+ {
+ // Prefetch next iteration
+ if (n_left_from > 1)
+ {
+ vlib_buffer_t *p2;
+
+ p2 = vlib_get_buffer (vm, from[1]);
+ vlib_prefetch_buffer_header (p2, STORE);
+ CLIB_PREFETCH (p2->data, CLIB_CACHE_LINE_BYTES, LOAD);
+ }
+
+ bi0 = from[0];
+ b0 = vlib_get_buffer (vm, bi0);
+
+ VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b0);
+
+ sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_TX];
+
+ port =
+ (bond_load_balance_table[bif->lb]).load_balance (vm, node, bif, b0);
+ sif_if_index = *vec_elt_at_index (bif->active_slaves, port);
+ vnet_buffer (b0)->sw_if_index[VLIB_TX] = sif_if_index;
+ f = vnet_get_frame_to_sw_interface (vnm, sif_if_index);
+ to_next = vlib_frame_vector_args (f);
+ to_next += f->n_vectors;
+
+ to_next[0] = vlib_get_buffer_index (vm, b0);
+ f->n_vectors++;
+ vnet_put_frame_to_sw_interface (vnm, sif_if_index, f);
+
+ if (PREDICT_FALSE (n_trace > 0))
+ {
+ vlib_trace_buffer (vm, node, next0, b0, 0 /* follow_chain */ );
+ vlib_set_trace_count (vm, node, --n_trace);
+ t0 = vlib_add_trace (vm, node, b0, sizeof (*t0));
+ eth = (ethernet_header_t *) vlib_buffer_get_current (b0);
+ t0->ethernet = *eth;
+ t0->sw_if_index = sw_if_index;
+ t0->bond_sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_TX];
+ }
+
+ from += 1;
+ n_left_from -= 1;
+ }
+
+ 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;
+}
+
+/* *INDENT-OFF* */
+VNET_DEVICE_CLASS (bond_dev_class) = {
+ .name = "bond",
+ .tx_function = bond_tx_fn,
+ .tx_function_n_errors = BOND_TX_N_ERROR,
+ .tx_function_error_strings = bond_tx_error_strings,
+ .format_device_name = format_bond_interface_name,
+ .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,
+};
+
+VLIB_DEVICE_TX_FUNCTION_MULTIARCH (bond_dev_class, bond_tx_fn)
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */