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gerrit.nordix.org / fdio / vpp / 285434a858d2b53b15c572ad491b9ca3b40fcef3 / . / src / vnet / bonding / device.c
blob: 1ade1c290a133e8b352dd6bcd0610626b8a643f0 [file] [log] [blame]
/*
*------------------------------------------------------------------
* 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;
}
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_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 u32
bond_load_balance_broadcast (vlib_main_t * vm, vlib_node_runtime_t * node,
bond_if_t * bif, vlib_buffer_t * b0,
uword slave_count)
{
vnet_main_t *vnm = vnet_get_main ();
vlib_buffer_t *c0;
int port;
u32 *to_next = 0;
u32 sw_if_index;
vlib_frame_t *f;
u16 thread_index = vlib_get_thread_index ();
for (port = 1; port < slave_count; port++)
{
sw_if_index = *vec_elt_at_index (bif->active_slaves, port);
if (bif->per_thread_info[thread_index].frame[port] == 0)
bif->per_thread_info[thread_index].frame[port] =
vnet_get_frame_to_sw_interface (vnm, sw_if_index);
f = bif->per_thread_info[thread_index].frame[port];
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++;
}
}
return 0;
}
static_always_inline u32
bond_load_balance_l2 (vlib_main_t * vm, vlib_node_runtime_t * node,
bond_if_t * bif, vlib_buffer_t * b0, uword slave_count)
{
ethernet_header_t *eth = (ethernet_header_t *) vlib_buffer_get_current (b0);
u32 c;
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);
c = lb_hash_hash_2_tuples (a, b);
if (BOND_MODULO_SHORTCUT (slave_count))
return (c & (slave_count - 1));
else
return c % slave_count;
}
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_load_balance_l23 (vlib_main_t * vm, vlib_node_runtime_t * node,
bond_if_t * bif, vlib_buffer_t * b0, uword slave_count)
{
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_load_balance_l2 (vm, node, bif, b0, slave_count));
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);
if (BOND_MODULO_SHORTCUT (slave_count))
return (c & (slave_count - 1));
else
return c % slave_count;
}
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);
if (BOND_MODULO_SHORTCUT (slave_count))
return (c & (slave_count - 1));
else
return c % slave_count;
}
return (bond_load_balance_l2 (vm, node, bif, b0, slave_count));
}
static_always_inline u32
bond_load_balance_l34 (vlib_main_t * vm, vlib_node_runtime_t * node,
bond_if_t * bif, vlib_buffer_t * b0, uword slave_count)
{
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_load_balance_l2 (vm, node, bif, b0, slave_count));
ip4 = (ip4_header_t *) (ethertype_p + 1);
ip_version = (ip4->ip_version_and_header_length >> 4);
if (ip_version == 0x4)
{
u32 a, c, 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;
c =
lb_hash_hash_2_tuples (clib_mem_unaligned (&ip4->address_pair, u64),
a);
if (BOND_MODULO_SHORTCUT (slave_count))
return (c & (slave_count - 1));
else
return c % slave_count;
}
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);
if (BOND_MODULO_SHORTCUT (slave_count))
return (c & (slave_count - 1));
else
return c % slave_count;
}
return (bond_load_balance_l2 (vm, node, bif, b0, slave_count));
}
static_always_inline u32
bond_load_balance_round_robin (vlib_main_t * vm,
vlib_node_runtime_t * node,
bond_if_t * bif, vlib_buffer_t * b0,
uword slave_count)
{
bif->lb_rr_last_index++;
if (BOND_MODULO_SHORTCUT (slave_count))
bif->lb_rr_last_index &= slave_count - 1;
else
bif->lb_rr_last_index %= slave_count;
return bif->lb_rr_last_index;
}
static_always_inline u32
bond_load_balance_active_backup (vlib_main_t * vm,
vlib_node_runtime_t * node,
bond_if_t * bif, vlib_buffer_t * b0,
uword slave_count)
{
/* 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 port;
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;
u32 sif_if_index, sif_if_index1, sif_if_index2, sif_if_index3;
vlib_frame_t *f;
uword slave_count;
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;
}
clib_spinlock_lock_if_init (&bif->lockp);
slave_count = vec_len (bif->active_slaves);
if (PREDICT_FALSE (slave_count == 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);
clib_spinlock_unlock_if_init (&bif->lockp);
return frame->n_vectors;
}
vec_validate_aligned (bif->per_thread_info[thread_index].frame, slave_count,
CLIB_CACHE_LINE_BYTES);
/* Number of buffers / pkts */
n_left_from = frame->n_vectors;
while (n_left_from > 0)
{
while (n_left_from >= 4)
{
u32 next0 = 0, next1 = 0, next2 = 0, next3 = 0;
u32 port0 = 0, port1 = 0, port2 = 0, port3 = 0;
// Prefetch next iteration
if (n_left_from >= 8)
{
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, LOAD);
vlib_prefetch_buffer_header (p5, LOAD);
vlib_prefetch_buffer_header (p6, LOAD);
vlib_prefetch_buffer_header (p7, LOAD);
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];
if (PREDICT_TRUE (slave_count != 1))
{
port0 =
(bond_load_balance_table[bif->lb]).load_balance (vm, node,
bif, b0,
slave_count);
port1 =
(bond_load_balance_table[bif->lb]).load_balance (vm, node,
bif, b1,
slave_count);
port2 =
(bond_load_balance_table[bif->lb]).load_balance (vm, node,
bif, b2,
slave_count);
port3 =
(bond_load_balance_table[bif->lb]).load_balance (vm, node,
bif, b3,
slave_count);
}
sif_if_index = *vec_elt_at_index (bif->active_slaves, port0);
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;
if (PREDICT_FALSE ((bif->per_thread_info[thread_index].frame[port0]
== 0)))
bif->per_thread_info[thread_index].frame[port0] =
vnet_get_frame_to_sw_interface (vnm, sif_if_index);
if (PREDICT_FALSE ((bif->per_thread_info[thread_index].frame[port1]
== 0)))
bif->per_thread_info[thread_index].frame[port1] =
vnet_get_frame_to_sw_interface (vnm, sif_if_index1);
if (PREDICT_FALSE ((bif->per_thread_info[thread_index].frame[port2]
== 0)))
bif->per_thread_info[thread_index].frame[port2] =
vnet_get_frame_to_sw_interface (vnm, sif_if_index2);
if (PREDICT_FALSE ((bif->per_thread_info[thread_index].frame[port3]
== 0)))
bif->per_thread_info[thread_index].frame[port3] =
vnet_get_frame_to_sw_interface (vnm, sif_if_index3);
f = bif->per_thread_info[thread_index].frame[port0];
to_next = vlib_frame_vector_args (f);
to_next += f->n_vectors;
to_next[0] = vlib_get_buffer_index (vm, b0);
f->n_vectors++;
f = bif->per_thread_info[thread_index].frame[port1];
to_next = vlib_frame_vector_args (f);
to_next += f->n_vectors;
to_next[0] = vlib_get_buffer_index (vm, b1);
f->n_vectors++;
f = bif->per_thread_info[thread_index].frame[port2];
to_next = vlib_frame_vector_args (f);
to_next += f->n_vectors;
to_next[0] = vlib_get_buffer_index (vm, b2);
f->n_vectors++;
f = bif->per_thread_info[thread_index].frame[port3];
to_next = vlib_frame_vector_args (f);
to_next += f->n_vectors;
to_next[0] = vlib_get_buffer_index (vm, b3);
f->n_vectors++;
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)
{
u32 next0 = 0;
u32 port0 = 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, LOAD);
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];
if (PREDICT_TRUE (slave_count != 1))
port0 =
(bond_load_balance_table[bif->lb]).load_balance (vm, node, bif,
b0,
slave_count);
sif_if_index = *vec_elt_at_index (bif->active_slaves, port0);
vnet_buffer (b0)->sw_if_index[VLIB_TX] = sif_if_index;
if (PREDICT_FALSE
((bif->per_thread_info[thread_index].frame[port0] == 0)))
bif->per_thread_info[thread_index].frame[port0] =
vnet_get_frame_to_sw_interface (vnm, sif_if_index);
f = bif->per_thread_info[thread_index].frame[port0];
to_next = vlib_frame_vector_args (f);
to_next += f->n_vectors;
to_next[0] = vlib_get_buffer_index (vm, b0);
f->n_vectors++;
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;
}
}
for (port = 0; port < slave_count; port++)
{
f = bif->per_thread_info[thread_index].frame[port];
if (f == 0)
continue;
sw_if_index = *vec_elt_at_index (bif->active_slaves, port);
vnet_put_frame_to_sw_interface (vnm, sw_if_index, f);
bif->per_thread_info[thread_index].frame[port] = 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);
clib_spinlock_unlock_if_init (&bif->lockp);
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 = 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,
.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,
};
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:
*/