--- /dev/null
+/*
+ * 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 <vlib/vlib.h>
+#include <vnet/bonding/node.h>
+#include <lacp/node.h>
+
+/*
+ * LACP State = DETACHED
+ */
+static lacp_fsm_state_t lacp_mux_state_detached[] = {
+ {LACP_ACTION_DETACHED, LACP_MUX_STATE_DETACHED}, // event 0 BEGIN
+ {LACP_ACTION_WAITING, LACP_MUX_STATE_WAITING}, // event 1 SELECTED
+ {LACP_ACTION_WAITING, LACP_MUX_STATE_WAITING}, // event 2 STANDBY
+ {LACP_ACTION_DETACHED, LACP_MUX_STATE_DETACHED}, // event 3 UNSELECTED
+ {LACP_ACTION_DETACHED, LACP_MUX_STATE_DETACHED}, // event 4 READY
+ {LACP_ACTION_DETACHED, LACP_MUX_STATE_DETACHED}, // event 5 SYNC
+};
+
+/*
+ * LACP State = WAITING
+ */
+static lacp_fsm_state_t lacp_mux_state_waiting[] = {
+ {LACP_ACTION_DETACHED, LACP_MUX_STATE_DETACHED}, // event 0 BEGIN
+ {LACP_ACTION_WAITING, LACP_MUX_STATE_WAITING}, // event 1 SELECTED
+ {LACP_ACTION_WAITING, LACP_MUX_STATE_WAITING}, // event 2 STANDBY
+ {LACP_ACTION_DETACHED, LACP_MUX_STATE_DETACHED}, // event 3 UNSELECTED
+ {LACP_ACTION_ATTACHED, LACP_MUX_STATE_ATTACHED}, // event 4 READY
+ {LACP_ACTION_WAITING, LACP_MUX_STATE_WAITING}, // event 5 SYNC
+};
+
+/*
+ * LACP State = ATTACHED
+ */
+static lacp_fsm_state_t lacp_mux_state_attached[] = {
+ {LACP_ACTION_DETACHED, LACP_MUX_STATE_DETACHED}, // event 0 BEGIN
+ {LACP_ACTION_ATTACHED, LACP_MUX_STATE_ATTACHED}, // event 1 SELECTED
+ {LACP_ACTION_DETACHED, LACP_MUX_STATE_DETACHED}, // event 2 STANDBY
+ {LACP_ACTION_DETACHED, LACP_MUX_STATE_DETACHED}, // event 3 UNSELECTED
+ {LACP_ACTION_ATTACHED, LACP_MUX_STATE_ATTACHED}, // event 4 READY
+ {LACP_ACTION_COLLECTING_DISTRIBUTING, LACP_MUX_STATE_COLLECTING_DISTRIBUTING}, // event 5_SYNC
+};
+
+/*
+ * LACP State = COLLECTING_DISTRIBUTING
+ */
+static lacp_fsm_state_t lacp_mux_state_collecting_distributing[] = {
+ {LACP_ACTION_DETACHED, LACP_MUX_STATE_DETACHED}, // event 0 BEGIN
+ {LACP_ACTION_COLLECTING_DISTRIBUTING, LACP_MUX_STATE_COLLECTING_DISTRIBUTING}, // event 1 SELECTED
+ {LACP_ACTION_COLLECTING_DISTRIBUTING, LACP_MUX_STATE_COLLECTING_DISTRIBUTING}, // event 2 STANDBY
+ {LACP_ACTION_ATTACHED, LACP_MUX_STATE_ATTACHED}, // event 3 UNSELECTED
+ {LACP_ACTION_COLLECTING_DISTRIBUTING, LACP_MUX_STATE_COLLECTING_DISTRIBUTING}, // event 4 READY
+ {LACP_ACTION_COLLECTING_DISTRIBUTING, LACP_MUX_STATE_COLLECTING_DISTRIBUTING}, // event 5 SYNC
+};
+
+static lacp_fsm_machine_t lacp_mux_fsm_table[] = {
+ {lacp_mux_state_detached},
+ {lacp_mux_state_waiting},
+ {lacp_mux_state_attached},
+ {lacp_mux_state_collecting_distributing},
+};
+
+lacp_machine_t lacp_mux_machine = {
+ lacp_mux_fsm_table,
+ lacp_mux_debug_func,
+};
+
+static void
+lacp_detach_mux_from_aggregator (vlib_main_t * vm, slave_if_t * sif)
+{
+ sif->actor.state &= ~LACP_STATE_SYNCHRONIZATION;
+ sif->ready = 0;
+ sif->ready_n = 0;
+}
+
+static void
+lacp_attach_mux_to_aggregator (vlib_main_t * vm, slave_if_t * sif)
+{
+ sif->actor.state |= LACP_STATE_SYNCHRONIZATION;
+}
+
+int
+lacp_mux_action_detached (void *p1, void *p2)
+{
+ vlib_main_t *vm = (vlib_main_t *) p1;
+ slave_if_t *sif = (slave_if_t *) p2;
+
+ lacp_detach_mux_from_aggregator (vm, sif);
+ sif->actor.state &= ~LACP_STATE_COLLECTING;
+ bond_disable_collecting_distributing (vm, sif);
+ sif->actor.state &= ~LACP_STATE_DISTRIBUTING;
+ sif->ntt = 1;
+ lacp_machine_dispatch (&lacp_tx_machine, vm, sif, LACP_TX_EVENT_NTT,
+ &sif->tx_state);
+
+ if (sif->selected == LACP_PORT_SELECTED)
+ lacp_machine_dispatch (&lacp_mux_machine, vm, sif,
+ LACP_MUX_EVENT_SELECTED, &sif->mux_state);
+
+ if (sif->selected == LACP_PORT_STANDBY)
+ lacp_machine_dispatch (&lacp_mux_machine, vm, sif, LACP_MUX_EVENT_STANDBY,
+ &sif->mux_state);
+
+ return 0;
+}
+
+int
+lacp_mux_action_attached (void *p1, void *p2)
+{
+ vlib_main_t *vm = (vlib_main_t *) p1;
+ slave_if_t *sif = (slave_if_t *) p2;
+
+ lacp_attach_mux_to_aggregator (vm, sif);
+ sif->actor.state &= ~LACP_STATE_COLLECTING;
+ bond_disable_collecting_distributing (vm, sif);
+ sif->actor.state &= ~LACP_STATE_DISTRIBUTING;
+ sif->ntt = 1;
+ lacp_machine_dispatch (&lacp_tx_machine, vm, sif, LACP_TX_EVENT_NTT,
+ &sif->tx_state);
+
+ if ((sif->selected == LACP_PORT_UNSELECTED) ||
+ (sif->selected == LACP_PORT_STANDBY))
+ lacp_machine_dispatch (&lacp_mux_machine, vm, sif,
+ LACP_MUX_EVENT_UNSELECTED, &sif->mux_state);
+
+ if ((sif->selected == LACP_PORT_SELECTED) &&
+ (sif->partner.state & LACP_STATE_SYNCHRONIZATION))
+ lacp_machine_dispatch (&lacp_mux_machine, vm, sif, LACP_MUX_EVENT_SYNC,
+ &sif->mux_state);
+ return 0;
+}
+
+int
+lacp_mux_action_waiting (void *p1, void *p2)
+{
+ vlib_main_t *vm = (vlib_main_t *) p1;
+ slave_if_t *sif = (slave_if_t *) p2;
+ lacp_main_t *lm = &lacp_main;
+
+ if (!lacp_timer_is_running (sif->wait_while_timer))
+ lacp_start_wait_while_timer (lm->vlib_main, sif,
+ LACP_AGGREGATE_WAIT_TIME);
+
+ if ((sif->selected == LACP_PORT_SELECTED) && sif->ready)
+ lacp_machine_dispatch (&lacp_mux_machine, vm, sif,
+ LACP_MUX_EVENT_READY, &sif->mux_state);
+
+ if (sif->selected == LACP_PORT_UNSELECTED)
+ lacp_machine_dispatch (&lacp_mux_machine, vm, sif,
+ LACP_MUX_EVENT_UNSELECTED, &sif->mux_state);
+
+ return 0;
+}
+
+int
+lacp_mux_action_collecting_distributing (void *p1, void *p2)
+{
+ vlib_main_t *vm = (vlib_main_t *) p1;
+ slave_if_t *sif = (slave_if_t *) p2;
+
+ sif->actor.state |= LACP_STATE_SYNCHRONIZATION | LACP_STATE_COLLECTING |
+ LACP_STATE_DISTRIBUTING;
+ bond_enable_collecting_distributing (vm, sif);
+ sif->ntt = 1;
+ lacp_machine_dispatch (&lacp_tx_machine, vm, sif, LACP_TX_EVENT_NTT,
+ &sif->tx_state);
+ if ((sif->selected == LACP_PORT_UNSELECTED) ||
+ (sif->selected == LACP_PORT_STANDBY) ||
+ !(sif->partner.state & LACP_STATE_SYNCHRONIZATION))
+ lacp_machine_dispatch (&lacp_mux_machine, vm, sif,
+ LACP_MUX_EVENT_UNSELECTED, &sif->mux_state);
+
+
+ return 0;
+}
+
+static u8 *
+format_mux_event (u8 * s, va_list * args)
+{
+ static lacp_event_struct lacp_mux_event_array[] = {
+#define _(b, s, n) {.bit = b, .str = #s, },
+ foreach_lacp_mux_event
+#undef _
+ {.str = NULL}
+ };
+ int e = va_arg (*args, int);
+ lacp_event_struct *event_entry =
+ (lacp_event_struct *) & lacp_mux_event_array;
+
+ if (e >= (sizeof (lacp_mux_event_array) / sizeof (*event_entry)))
+ s = format (s, "Bad event %d", e);
+ else
+ s = format (s, "%s", event_entry[e].str);
+
+ return s;
+}
+
+void
+lacp_mux_debug_func (slave_if_t * sif, int event, int state,
+ lacp_fsm_state_t * transition)
+{
+ clib_warning ("%U-MUX: event %U, old state %U, new state %U",
+ format_vnet_sw_if_index_name, vnet_get_main (),
+ sif->sw_if_index, format_mux_event,
+ event, format_mux_sm_state, state, format_mux_sm_state,
+ transition->next_state);
+}
+
+void
+lacp_init_mux_machine (vlib_main_t * vm, slave_if_t * sif)
+{
+ lacp_machine_dispatch (&lacp_mux_machine, vm, sif, LACP_MUX_EVENT_BEGIN,
+ &sif->mux_state);
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / blobdiff