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authorSteven <sluong@cisco.com>2018-06-05 11:09:32 -0700
committerSteven <sluong@cisco.com>2018-06-05 11:09:32 -0700
commit9f781d84b0943b03af2a9fd0b7c4cef721d1d4c6 (patch)
treea78172c460d265c89d3717a5cb8cb45775fe523b /src/vnet/bonding/cli.c
parent439a122f3acd745dcb70e9b32bb518e43967afe4 (diff)
bond: send gratuitous arp when the active slave went down in active-backup mode
- Modify the API send_ip6_na and send_ip4_garp to take sw_if_index instead of vnet_hw_interface_t and add call to build_ethernet_rewrite to support subinterface/vlan - Add code to bonding driver to send an event to bond_process when the first interface becomes active or when the active interface is down - Create a bond_process to walk the interface and the corresponding subinterfaces to send garp/ip6_na when an event is received. - Minor cleanup in bonding/node.c Note: dpdk bonding driver does not send garp/ip6_na for subinterfaces. There is no attempt to fix it here. But the infra is now done and should be easy to add the support. Change-Id: If3ecc4cd0fb3051330f7fa11ca0dab3e18557ce1 Signed-off-by: Steven <sluong@cisco.com>
Diffstat (limited to 'src/vnet/bonding/cli.c')
-rw-r--r--src/vnet/bonding/cli.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/src/vnet/bonding/cli.c b/src/vnet/bonding/cli.c
index 2799bb88b99..91c6e2cdb7d 100644
--- a/src/vnet/bonding/cli.c
+++ b/src/vnet/bonding/cli.c
@@ -24,9 +24,11 @@
void
bond_disable_collecting_distributing (vlib_main_t * vm, slave_if_t * sif)
{
+ bond_main_t *bm = &bond_main;
bond_if_t *bif;
int i;
uword p;
+ u8 switching_active = 0;
bif = bond_get_master_by_dev_instance (sif->bif_dev_instance);
clib_spinlock_lock_if_init (&bif->lockp);
@@ -35,8 +37,18 @@ bond_disable_collecting_distributing (vlib_main_t * vm, slave_if_t * sif)
p = *vec_elt_at_index (bif->active_slaves, i);
if (p == sif->sw_if_index)
{
+ /* Are we disabling the very 1st slave? */
+ if (sif->sw_if_index == *vec_elt_at_index (bif->active_slaves, 0))
+ switching_active = 1;
+
vec_del1 (bif->active_slaves, i);
hash_unset (bif->active_slave_by_sw_if_index, sif->sw_if_index);
+
+ /* We got a new slave just becoming active? */
+ if ((vec_len (bif->active_slaves) >= 1) &&
+ (bif->mode == BOND_MODE_ACTIVE_BACKUP) && switching_active)
+ vlib_process_signal_event (bm->vlib_main, bond_process_node.index,
+ BOND_SEND_GARP_NA, bif->hw_if_index);
break;
}
}
@@ -47,6 +59,7 @@ void
bond_enable_collecting_distributing (vlib_main_t * vm, slave_if_t * sif)
{
bond_if_t *bif;
+ bond_main_t *bm = &bond_main;
bif = bond_get_master_by_dev_instance (sif->bif_dev_instance);
clib_spinlock_lock_if_init (&bif->lockp);
@@ -55,6 +68,12 @@ bond_enable_collecting_distributing (vlib_main_t * vm, slave_if_t * sif)
hash_set (bif->active_slave_by_sw_if_index, sif->sw_if_index,
sif->sw_if_index);
vec_add1 (bif->active_slaves, sif->sw_if_index);
+
+ /* First slave becomes active? */
+ if ((vec_len (bif->active_slaves) == 1) &&
+ (bif->mode == BOND_MODE_ACTIVE_BACKUP))
+ vlib_process_signal_event (bm->vlib_main, bond_process_node.index,
+ BOND_SEND_GARP_NA, bif->hw_if_index);
}
clib_spinlock_unlock_if_init (&bif->lockp);
}