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-rw-r--r--src/plugins/lacp/tx_machine.c109
1 files changed, 109 insertions, 0 deletions
diff --git a/src/plugins/lacp/tx_machine.c b/src/plugins/lacp/tx_machine.c
new file mode 100644
index 00000000000..794b4f10d95
--- /dev/null
+++ b/src/plugins/lacp/tx_machine.c
@@ -0,0 +1,109 @@
+/*
+ * 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 <vnet/bonding/node.h>
+#include <lacp/node.h>
+
+/*
+ * LACP State = TRANSMIT
+ */
+static lacp_fsm_state_t lacp_tx_state_transmit[] = {
+ {LACP_ACTION_TRANSMIT, LACP_TX_STATE_TRANSMIT}, // event 0 BEGIN
+ {LACP_ACTION_TRANSMIT, LACP_TX_STATE_TRANSMIT}, // event 1 NTT
+};
+
+static lacp_fsm_machine_t lacp_tx_fsm_table[] = {
+ {lacp_tx_state_transmit},
+};
+
+lacp_machine_t lacp_tx_machine = {
+ lacp_tx_fsm_table,
+ lacp_tx_debug_func,
+};
+
+int
+lacp_tx_action_transmit (void *p1, void *p2)
+{
+ vlib_main_t *vm = (vlib_main_t *) p1;
+ slave_if_t *sif = (slave_if_t *) p2;
+ f64 now = vlib_time_now (vm);
+
+ if (!lacp_timer_is_running (sif->periodic_timer))
+ return 0;
+
+ // No more than 3 LACPDUs per fast interval
+ if (now <= (sif->last_lacpdu_time + 0.333))
+ return 0;
+
+ if (sif->ntt)
+ {
+ lacp_send_lacp_pdu (vm, sif);
+ }
+ sif->ntt = 0;
+
+ return 0;
+}
+
+static u8 *
+format_tx_event (u8 * s, va_list * args)
+{
+ static lacp_event_struct lacp_tx_event_array[] = {
+#define _(b, s, n) {.bit = b, .str = #s, },
+ foreach_lacp_tx_event
+#undef _
+ {.str = NULL}
+ };
+ int e = va_arg (*args, int);
+ lacp_event_struct *event_entry =
+ (lacp_event_struct *) & lacp_tx_event_array;
+
+ if (e >= (sizeof (lacp_tx_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_tx_debug_func (slave_if_t * sif, int event, int state,
+ lacp_fsm_state_t * transition)
+{
+ clib_warning ("%U-TX: event %U, old state %U, new state %U",
+ format_vnet_sw_if_index_name, vnet_get_main (),
+ sif->sw_if_index, format_tx_event,
+ event, format_tx_sm_state, state, format_tx_sm_state,
+ transition->next_state);
+}
+
+void
+lacp_init_tx_machine (vlib_main_t * vm, slave_if_t * sif)
+{
+ lacp_machine_dispatch (&lacp_tx_machine, vm, sif, LACP_TX_EVENT_BEGIN,
+ &sif->tx_state);
+ if (sif->is_passive == 0)
+ lacp_machine_dispatch (&lacp_tx_machine, vm, sif, LACP_TX_EVENT_NTT,
+ &sif->tx_state);
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */