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/*
* 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.
*/
#include <stdint.h>
#include <vlib/vlib.h>
#include <vlib/unix/unix.h>
#include <vnet/bonding/node.h>
#include <lacp/node.h>
static void
lacp_set_port_selected (vlib_main_t * vm, slave_if_t * sif)
{
/* Handle loopback port */
if (!memcmp (sif->partner.system, sif->actor.system, 6) &&
(sif->partner.key == sif->actor.key))
{
sif->loopback_port = 1;
sif->actor.state &= ~LACP_STATE_AGGREGATION;
}
sif->selected = LACP_PORT_SELECTED;
switch (sif->mux_state)
{
case LACP_MUX_STATE_DETACHED:
break;
case LACP_MUX_STATE_WAITING:
if (!sif->ready)
return;
break;
case LACP_MUX_STATE_ATTACHED:
if (!(sif->partner.state & LACP_STATE_SYNCHRONIZATION))
return;
break;
case LACP_MUX_STATE_COLLECTING_DISTRIBUTING:
break;
default:
break;
}
lacp_machine_dispatch (&lacp_mux_machine, vm, sif, LACP_MUX_EVENT_SELECTED,
&sif->mux_state);
}
void
lacp_selection_logic (vlib_main_t * vm, slave_if_t * sif)
{
slave_if_t *sif2;
bond_if_t *bif;
u32 *sw_if_index;
bif = bond_get_master_by_dev_instance (sif->bif_dev_instance);
vec_foreach (sw_if_index, bif->slaves)
{
sif2 = bond_get_slave_by_sw_if_index (*sw_if_index);
if (sif2 && (sif2->actor.state & LACP_STATE_SYNCHRONIZATION) &&
(sif2->ready_n == 0))
goto out;
}
vec_foreach (sw_if_index, bif->slaves)
{
sif2 = bond_get_slave_by_sw_if_index (*sw_if_index);
if (sif2)
{
sif2->ready = 1;
if (sif2->selected == LACP_PORT_SELECTED)
lacp_machine_dispatch (&lacp_mux_machine, vm, sif2,
LACP_MUX_EVENT_READY, &sif2->mux_state);
}
}
out:
lacp_set_port_selected (vm, sif);
}
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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