mq = session_main_get_vpp_event_queue (thread_index);
if (PREDICT_FALSE (svm_msg_q_lock (mq)))
return -1;
- if (PREDICT_FALSE (svm_msg_q_ring_is_full (mq, SESSION_MQ_IO_EVT_RING)))
+ if (PREDICT_FALSE (svm_msg_q_is_full (mq)
+ || svm_msg_q_ring_is_full (mq, SESSION_MQ_IO_EVT_RING)))
{
svm_msg_q_unlock (mq);
return -2;
}
- msg = svm_msg_q_alloc_msg_w_ring (mq, SESSION_MQ_IO_EVT_RING);
- if (PREDICT_FALSE (svm_msg_q_msg_is_invalid (&msg)))
- {
- svm_msg_q_unlock (mq);
- return -2;
- }
- evt = (session_event_t *) svm_msg_q_msg_data (mq, &msg);
- evt->event_type = evt_type;
switch (evt_type)
{
case SESSION_CTRL_EVT_RPC:
+ msg = svm_msg_q_alloc_msg_w_ring (mq, SESSION_MQ_IO_EVT_RING);
+ evt = (session_event_t *) svm_msg_q_msg_data (mq, &msg);
evt->rpc_args.fp = data;
evt->rpc_args.arg = args;
break;
+ case SESSION_IO_EVT_RX:
case SESSION_IO_EVT_TX:
case SESSION_IO_EVT_TX_FLUSH:
case SESSION_IO_EVT_BUILTIN_RX:
+ msg = svm_msg_q_alloc_msg_w_ring (mq, SESSION_MQ_IO_EVT_RING);
+ evt = (session_event_t *) svm_msg_q_msg_data (mq, &msg);
evt->session_index = *(u32 *) data;
break;
case SESSION_IO_EVT_BUILTIN_TX:
case SESSION_CTRL_EVT_CLOSE:
+ case SESSION_CTRL_EVT_RESET:
+ msg = svm_msg_q_alloc_msg_w_ring (mq, SESSION_MQ_IO_EVT_RING);
+ evt = (session_event_t *) svm_msg_q_msg_data (mq, &msg);
evt->session_handle = session_handle ((session_t *) data);
break;
default:
svm_msg_q_unlock (mq);
return -1;
}
+ evt->event_type = evt_type;
svm_msg_q_add_and_unlock (mq, &msg);
return 0;
int
session_send_ctrl_evt_to_thread (session_t * s, session_evt_type_t evt_type)
{
- /* only event supported for now is disconnect */
- ASSERT (evt_type == SESSION_CTRL_EVT_CLOSE);
- return session_send_evt_to_thread (s, 0, s->thread_index,
- SESSION_CTRL_EVT_CLOSE);
+ /* only events supported are disconnect and reset */
+ ASSERT (evt_type == SESSION_CTRL_EVT_CLOSE
+ || evt_type == SESSION_CTRL_EVT_RESET);
+ return session_send_evt_to_thread (s, 0, s->thread_index, evt_type);
}
void
}
}
+void
+session_add_self_custom_tx_evt (transport_connection_t * tc, u8 has_prio)
+{
+ session_t *s;
+
+ s = session_get (tc->s_index, tc->thread_index);
+ ASSERT (s->thread_index == vlib_get_thread_index ());
+ ASSERT (s->session_state != SESSION_STATE_TRANSPORT_DELETED);
+ if (!(s->flags & SESSION_F_CUSTOM_TX))
+ {
+ s->flags |= SESSION_F_CUSTOM_TX;
+ if (svm_fifo_set_event (s->tx_fifo))
+ {
+ session_worker_t *wrk;
+ session_evt_elt_t *elt;
+ wrk = session_main_get_worker (tc->thread_index);
+ if (has_prio)
+ elt = session_evt_alloc_new (wrk);
+ else
+ elt = session_evt_alloc_old (wrk);
+ elt->evt.session_index = tc->s_index;
+ elt->evt.event_type = SESSION_IO_EVT_TX;
+ }
+ }
+}
+
static void
-session_program_transport_close (session_t * s)
+session_program_transport_ctrl_evt (session_t * s, session_evt_type_t evt)
{
u32 thread_index = vlib_get_thread_index ();
+ session_evt_elt_t *elt;
session_worker_t *wrk;
- session_event_t *evt;
/* If we are in the handler thread, or being called with the worker barrier
* held, just append a new event to pending disconnects vector. */
if (vlib_thread_is_main_w_barrier () || thread_index == s->thread_index)
{
wrk = session_main_get_worker (s->thread_index);
- vec_add2 (wrk->pending_disconnects, evt, 1);
- clib_memset (evt, 0, sizeof (*evt));
- evt->session_handle = session_handle (s);
- evt->event_type = SESSION_CTRL_EVT_CLOSE;
+ elt = session_evt_alloc_ctrl (wrk);
+ clib_memset (&elt->evt, 0, sizeof (session_event_t));
+ elt->evt.session_handle = session_handle (s);
+ elt->evt.event_type = evt;
}
else
- session_send_ctrl_evt_to_thread (s, SESSION_CTRL_EVT_CLOSE);
+ session_send_ctrl_evt_to_thread (s, evt);
}
session_t *
pool_put (session_main.wrk[thread_index].sessions, s);
return;
}
- SESSION_EVT_DBG (SESSION_EVT_FREE, s);
+ SESSION_EVT (SESSION_EVT_FREE, s);
pool_put (session_main.wrk[s->thread_index].sessions, s);
}
+u8
+session_is_valid (u32 si, u8 thread_index)
+{
+ session_t *s;
+ transport_connection_t *tc;
+
+ s = pool_elt_at_index (session_main.wrk[thread_index].sessions, si);
+
+ if (!s)
+ return 1;
+
+ if (s->thread_index != thread_index || s->session_index != si)
+ return 0;
+
+ if (s->session_state == SESSION_STATE_TRANSPORT_DELETED
+ || s->session_state <= SESSION_STATE_LISTENING)
+ return 1;
+
+ tc = session_get_transport (s);
+ if (s->connection_index != tc->c_index
+ || s->thread_index != tc->thread_index || tc->s_index != si)
+ return 0;
+
+ return 1;
+}
+
+static void
+session_cleanup_notify (session_t * s, session_cleanup_ntf_t ntf)
+{
+ app_worker_t *app_wrk;
+
+ app_wrk = app_worker_get_if_valid (s->app_wrk_index);
+ if (!app_wrk)
+ return;
+ app_worker_cleanup_notify (app_wrk, s, ntf);
+}
+
void
session_free_w_fifos (session_t * s)
{
+ session_cleanup_notify (s, SESSION_CLEANUP_SESSION);
segment_manager_dealloc_fifos (s->rx_fifo, s->tx_fifo);
session_free (s);
}
/* Delete from the main lookup table. */
if ((rv = session_lookup_del_session (s)))
- clib_warning ("hash delete error, rv %d", rv);
+ clib_warning ("session %u hash delete rv %d", s->session_index, rv);
session_free_w_fifos (s);
}
return 0;
}
+void
+session_fifo_tuning (session_t * s, svm_fifo_t * f,
+ session_ft_action_t act, u32 len)
+{
+ if (s->flags & SESSION_F_CUSTOM_FIFO_TUNING)
+ {
+ app_worker_t *app_wrk = app_worker_get (s->app_wrk_index);
+ app_worker_session_fifo_tuning (app_wrk, s, f, act, len);
+ if (CLIB_ASSERT_ENABLE)
+ {
+ segment_manager_t *sm;
+ sm = segment_manager_get (f->segment_manager);
+ ASSERT (f->size >= 4096);
+ ASSERT (f->size <= sm->max_fifo_size);
+ }
+ }
+}
+
/*
* Enqueue data for delivery to session peer. Does not notify peer of enqueue
* event but on request can queue notification events for later delivery by
s->flags |= SESSION_F_RX_EVT;
vec_add1 (wrk->session_to_enqueue[tc->proto], s->session_index);
}
+
+ session_fifo_tuning (s, s->rx_fifo, SESSION_FT_ACTION_ENQUEUED, 0);
}
return enqueued;
s->flags |= SESSION_F_RX_EVT;
vec_add1 (wrk->session_to_enqueue[proto], s->session_index);
}
+
+ session_fifo_tuning (s, s->rx_fifo, SESSION_FT_ACTION_ENQUEUED, 0);
}
return enqueued;
}
u32 rv;
rv = svm_fifo_dequeue_drop (s->tx_fifo, max_bytes);
+ session_fifo_tuning (s, s->tx_fifo, SESSION_FT_ACTION_DEQUEUED, rv);
- if (svm_fifo_needs_tx_ntf (s->tx_fifo, max_bytes))
+ if (svm_fifo_needs_deq_ntf (s->tx_fifo, max_bytes))
session_dequeue_notify (s);
return rv;
return 0;
}
- /* *INDENT-OFF* */
- SESSION_EVT_DBG(SESSION_EVT_ENQ, s, ({
- ed->data[0] = SESSION_IO_EVT_RX;
- ed->data[1] = svm_fifo_max_dequeue_prod (s->rx_fifo);
- }));
- /* *INDENT-ON* */
+ SESSION_EVT (SESSION_EVT_ENQ, s, svm_fifo_max_dequeue_prod (s->rx_fifo));
s->flags &= ~SESSION_F_RX_EVT;
if (PREDICT_FALSE (app_worker_lock_and_send_event (app_wrk, s,
return session_enqueue_notify_inline (s);
}
+static void
+session_enqueue_notify_rpc (void *arg)
+{
+ u32 session_index = pointer_to_uword (arg);
+ session_t *s;
+
+ s = session_get_if_valid (session_index, vlib_get_thread_index ());
+ if (!s)
+ return;
+
+ session_enqueue_notify (s);
+}
+
+/**
+ * Like session_enqueue_notify, but can be called from a thread that does not
+ * own the session.
+ */
+void
+session_enqueue_notify_thread (session_handle_t sh)
+{
+ u32 thread_index = session_thread_from_handle (sh);
+ u32 session_index = session_index_from_handle (sh);
+
+ /*
+ * Pass session index (u32) as opposed to handle (u64) in case pointers
+ * are not 64-bit.
+ */
+ session_send_rpc_evt_to_thread (thread_index,
+ session_enqueue_notify_rpc,
+ uword_to_pointer (session_index, void *));
+}
+
int
session_dequeue_notify (session_t * s)
{
app_worker_t *app_wrk;
+ svm_fifo_clear_deq_ntf (s->tx_fifo);
+
app_wrk = app_worker_get_if_valid (s->app_wrk_index);
if (PREDICT_FALSE (!app_wrk))
return -1;
return session_notify_subscribers (app_wrk->app_index, s,
s->tx_fifo, SESSION_IO_EVT_TX);
- svm_fifo_clear_tx_ntf (s->tx_fifo);
-
return 0;
}
continue;
}
+ session_fifo_tuning (s, s->rx_fifo, SESSION_FT_ACTION_ENQUEUED,
+ 0 /* TODO/not needed */ );
+
if (PREDICT_FALSE (session_enqueue_notify_inline (s)))
errors++;
}
u32 new_session_index;
} session_switch_pool_args_t;
+/**
+ * Notify old thread of the session pool switch
+ */
static void
session_switch_pool (void *cb_args)
{
session_switch_pool_args_t *args = (session_switch_pool_args_t *) cb_args;
+ app_worker_t *app_wrk;
session_t *s;
+
ASSERT (args->thread_index == vlib_get_thread_index ());
s = session_get (args->session_index, args->thread_index);
s->tx_fifo->master_session_index = args->new_session_index;
s->tx_fifo->master_thread_index = args->new_thread_index;
transport_cleanup (session_get_transport_proto (s), s->connection_index,
s->thread_index);
+
+ app_wrk = app_worker_get_if_valid (s->app_wrk_index);
+ if (app_wrk)
+ {
+ session_handle_t new_sh;
+ new_sh = session_make_handle (args->new_session_index,
+ args->new_thread_index);
+ app_worker_migrate_notify (app_wrk, s, new_sh);
+
+ /* Trigger app read on the new thread */
+ session_enqueue_notify_thread (new_sh);
+ }
+
session_free (s);
clib_mem_free (cb_args);
}
new_s->rx_fifo->master_session_index = new_s->session_index;
new_s->rx_fifo->master_thread_index = new_s->thread_index;
new_s->session_state = SESSION_STATE_READY;
+ new_s->flags |= SESSION_F_IS_MIGRATING;
session_lookup_add_connection (tc, session_handle (new_s));
/*
if (!(s = session_get_if_valid (tc->s_index, tc->thread_index)))
return;
- /* Make sure we don't try to send anything more */
- svm_fifo_dequeue_drop_all (s->tx_fifo);
-
switch (s->session_state)
{
case SESSION_STATE_CREATED:
/* Session was created but accept notification was not yet sent to the
* app. Cleanup everything. */
session_lookup_del_session (s);
- session_free_w_fifos (s);
+ segment_manager_dealloc_fifos (s->rx_fifo, s->tx_fifo);
+ session_free (s);
break;
case SESSION_STATE_ACCEPTING:
case SESSION_STATE_TRANSPORT_CLOSING:
+ case SESSION_STATE_CLOSING:
+ case SESSION_STATE_TRANSPORT_CLOSED:
/* If transport finishes or times out before we get a reply
* from the app, mark transport as closed and wait for reply
* before removing the session. Cleanup session table in advance
* because transport will soon be closed and closed sessions
* are assumed to have been removed from the lookup table */
session_lookup_del_session (s);
- s->session_state = SESSION_STATE_TRANSPORT_CLOSED;
+ s->session_state = SESSION_STATE_TRANSPORT_DELETED;
+ session_cleanup_notify (s, SESSION_CLEANUP_TRANSPORT);
+ svm_fifo_dequeue_drop_all (s->tx_fifo);
break;
- case SESSION_STATE_CLOSING:
- case SESSION_STATE_CLOSED_WAITING:
+ case SESSION_STATE_APP_CLOSED:
/* Cleanup lookup table as transport needs to still be valid.
* Program transport close to ensure that all session events
* have been cleaned up. Once transport close is called, the
* session is just removed because both transport and app have
* confirmed the close*/
session_lookup_del_session (s);
- s->session_state = SESSION_STATE_TRANSPORT_CLOSED;
- session_program_transport_close (s);
+ s->session_state = SESSION_STATE_TRANSPORT_DELETED;
+ session_cleanup_notify (s, SESSION_CLEANUP_TRANSPORT);
+ svm_fifo_dequeue_drop_all (s->tx_fifo);
+ session_program_transport_ctrl_evt (s, SESSION_CTRL_EVT_CLOSE);
break;
- case SESSION_STATE_TRANSPORT_CLOSED:
+ case SESSION_STATE_TRANSPORT_DELETED:
break;
case SESSION_STATE_CLOSED:
+ session_cleanup_notify (s, SESSION_CLEANUP_TRANSPORT);
session_delete (s);
break;
default:
clib_warning ("session state %u", s->session_state);
+ session_cleanup_notify (s, SESSION_CLEANUP_TRANSPORT);
session_delete (s);
break;
}
}
/**
- * Notification from transport that session can be closed
+ * Notification from transport that it is closed
*
- * Should be called by transport only if it was closed with non-empty
- * tx fifo and once it decides to begin the closing procedure prior to
- * issuing a delete notify. This gives the chance to the session layer
- * to cleanup any outstanding events.
+ * Should be called by transport, prior to calling delete notify, once it
+ * knows that no more data will be exchanged. This could serve as an
+ * early acknowledgment of an active close especially if transport delete
+ * can be delayed a long time, e.g., tcp time-wait.
*/
void
session_transport_closed_notify (transport_connection_t * tc)
{
+ app_worker_t *app_wrk;
session_t *s;
if (!(s = session_get_if_valid (tc->s_index, tc->thread_index)))
{
session_transport_closing_notify (tc);
svm_fifo_dequeue_drop_all (s->tx_fifo);
+ s->session_state = SESSION_STATE_TRANSPORT_CLOSED;
}
/* If app close has not been received or has not yet resulted in
* a transport close, only mark the session transport as closed */
else if (s->session_state <= SESSION_STATE_CLOSING)
{
- session_lookup_del_session (s);
s->session_state = SESSION_STATE_TRANSPORT_CLOSED;
}
- else
+ /* If app also closed, switch to closed */
+ else if (s->session_state == SESSION_STATE_APP_CLOSED)
s->session_state = SESSION_STATE_CLOSED;
+
+ app_wrk = app_worker_get_if_valid (s->app_wrk_index);
+ if (app_wrk)
+ app_worker_transport_closed_notify (app_wrk, s);
}
/**
if (!app_wrk)
return -1;
s->session_state = SESSION_STATE_ACCEPTING;
- return app_worker_accept_notify (app_wrk, s);
+ if (app_worker_accept_notify (app_wrk, s))
+ {
+ /* On transport delete, no notifications should be sent. Unless, the
+ * accept is retried and successful. */
+ s->session_state = SESSION_STATE_CREATED;
+ return -1;
+ }
+ return 0;
}
/**
sh = session_handle (s);
session_lookup_add_connection (tc, sh);
-
return app_worker_connect_notify (app_wrk, s, opaque);
}
if (!tc)
return VNET_API_ERROR_ADDRESS_NOT_IN_USE;
- session_lookup_del_connection (tc);
+ if (!(tc->flags & TRANSPORT_CONNECTION_F_NO_LOOKUP))
+ session_lookup_del_connection (tc);
transport_stop_listen (tp, s->connection_index);
return 0;
}
{
/* Session will only be removed once both app and transport
* acknowledge the close */
- if (s->session_state == SESSION_STATE_TRANSPORT_CLOSED)
- session_program_transport_close (s);
-
- /* Session already closed. Clear the tx fifo */
- if (s->session_state == SESSION_STATE_CLOSED)
- svm_fifo_dequeue_drop_all (s->tx_fifo);
+ if (s->session_state == SESSION_STATE_TRANSPORT_CLOSED
+ || s->session_state == SESSION_STATE_TRANSPORT_DELETED)
+ session_program_transport_ctrl_evt (s, SESSION_CTRL_EVT_CLOSE);
return;
}
s->session_state = SESSION_STATE_CLOSING;
- session_program_transport_close (s);
+ session_program_transport_ctrl_evt (s, SESSION_CTRL_EVT_CLOSE);
+}
+
+/**
+ * Force a close without waiting for data to be flushed
+ */
+void
+session_reset (session_t * s)
+{
+ if (s->session_state >= SESSION_STATE_CLOSING)
+ return;
+ /* Drop all outstanding tx data */
+ svm_fifo_dequeue_drop_all (s->tx_fifo);
+ s->session_state = SESSION_STATE_CLOSING;
+ session_program_transport_ctrl_evt (s, SESSION_CTRL_EVT_RESET);
}
/**
void
session_transport_close (session_t * s)
{
- /* If transport is already closed, just free the session */
- if (s->session_state >= SESSION_STATE_TRANSPORT_CLOSED)
+ if (s->session_state >= SESSION_STATE_APP_CLOSED)
{
- session_free_w_fifos (s);
+ if (s->session_state == SESSION_STATE_TRANSPORT_CLOSED)
+ s->session_state = SESSION_STATE_CLOSED;
+ /* If transport is already deleted, just free the session */
+ else if (s->session_state >= SESSION_STATE_TRANSPORT_DELETED)
+ session_free_w_fifos (s);
return;
}
- /* If tx queue wasn't drained, change state to closed waiting for transport.
- * This way, the transport, if it so wishes, can continue to try sending the
- * outstanding data (in closed state it cannot). It MUST however at one
- * point, either after sending everything or after a timeout, call delete
- * notify. This will finally lead to the complete cleanup of the session.
+ /* If the tx queue wasn't drained, the transport can continue to try
+ * sending the outstanding data (in closed state it cannot). It MUST however
+ * at one point, either after sending everything or after a timeout, call
+ * delete notify. This will finally lead to the complete cleanup of the
+ * session.
*/
- if (svm_fifo_max_dequeue_cons (s->tx_fifo))
- s->session_state = SESSION_STATE_CLOSED_WAITING;
- else
- s->session_state = SESSION_STATE_CLOSED;
+ s->session_state = SESSION_STATE_APP_CLOSED;
transport_close (session_get_transport_proto (s), s->connection_index,
s->thread_index);
}
+/**
+ * Force transport close
+ */
+void
+session_transport_reset (session_t * s)
+{
+ if (s->session_state >= SESSION_STATE_APP_CLOSED)
+ {
+ if (s->session_state == SESSION_STATE_TRANSPORT_CLOSED)
+ s->session_state = SESSION_STATE_CLOSED;
+ else if (s->session_state >= SESSION_STATE_TRANSPORT_DELETED)
+ session_free_w_fifos (s);
+ return;
+ }
+
+ s->session_state = SESSION_STATE_APP_CLOSED;
+ transport_reset (session_get_transport_proto (s), s->connection_index,
+ s->thread_index);
+}
+
/**
* Cleanup transport and session state.
*
void
session_transport_cleanup (session_t * s)
{
- s->session_state = SESSION_STATE_CLOSED;
-
/* Delete from main lookup table before we axe the the transport */
session_lookup_del_session (s);
- transport_cleanup (session_get_transport_proto (s), s->connection_index,
- s->thread_index);
+ if (s->session_state != SESSION_STATE_TRANSPORT_DELETED)
+ transport_cleanup (session_get_transport_proto (s), s->connection_index,
+ s->thread_index);
/* Since we called cleanup, no delete notification will come. So, make
* sure the session is properly freed. */
- session_free_w_fifos (s);
+ segment_manager_dealloc_fifos (s->rx_fifo, s->tx_fifo);
+ session_free (s);
}
/**
{
u32 evt_q_length = 2048, evt_size = sizeof (session_event_t);
ssvm_private_t *eqs = &smm->evt_qs_segment;
- api_main_t *am = &api_main;
uword eqs_size = 64 << 20;
pid_t vpp_pid = getpid ();
void *oldheap;
if (smm->evt_qs_use_memfd_seg)
oldheap = ssvm_push_heap (eqs->sh);
else
- oldheap = svm_push_data_heap (am->vlib_rp);
+ oldheap = vl_msg_push_heap ();
for (i = 0; i < vec_len (smm->wrk); i++)
{
if (smm->evt_qs_use_memfd_seg)
ssvm_pop_heap (oldheap);
else
- svm_pop_heap (oldheap);
+ vl_msg_pop_heap (oldheap);
}
ssvm_private_t *
for (i = 0; i < num_threads; i++)
{
wrk = &smm->wrk[i];
- vec_validate (wrk->free_event_vector, 128);
- _vec_len (wrk->free_event_vector) = 0;
- vec_validate (wrk->pending_event_vector, 128);
- _vec_len (wrk->pending_event_vector) = 0;
- vec_validate (wrk->pending_disconnects, 128);
- _vec_len (wrk->pending_disconnects) = 0;
- vec_validate (wrk->postponed_event_vector, 128);
- _vec_len (wrk->postponed_event_vector) = 0;
-
+ wrk->ctrl_head = clib_llist_make_head (wrk->event_elts, evt_list);
+ wrk->new_head = clib_llist_make_head (wrk->event_elts, evt_list);
+ wrk->old_head = clib_llist_make_head (wrk->event_elts, evt_list);
+ wrk->vm = vlib_mains[i];
wrk->last_vlib_time = vlib_time_now (vlib_mains[i]);
- wrk->dispatch_period = 500e-6;
+ wrk->last_vlib_us_time = wrk->last_vlib_time * CLIB_US_TIME_FREQ;
if (num_threads > 1)
clib_rwlock_init (&smm->wrk[i].peekers_rw_locks);
}
-#if SESSION_DEBUG
- vec_validate (smm->last_event_poll_by_thread, num_threads - 1);
-#endif
-
/* Allocate vpp event queues segment and queue */
session_vpp_event_queues_allocate (smm);
/* Enable transports */
transport_enable_disable (vm, 1);
- transport_init_tx_pacers_period ();
return 0;
}
if (session_main.is_enabled)
return 0;
- session_node_enable_disable (is_en);
error = session_manager_main_enable (vm);
+ session_node_enable_disable (is_en);
}
else
{
smm->evt_qs_segment_size = 1 << 20;
#endif
smm->is_enabled = 0;
+ smm->session_enable_asap = 0;
+ return 0;
+}
+
+static clib_error_t *
+session_main_init (vlib_main_t * vm)
+{
+ session_main_t *smm = &session_main;
+ if (smm->session_enable_asap)
+ {
+ vlib_worker_thread_barrier_sync (vm);
+ vnet_session_enable_disable (vm, 1 /* is_en */ );
+ vlib_worker_thread_barrier_release (vm);
+ }
return 0;
}
VLIB_INIT_FUNCTION (session_manager_main_init);
+VLIB_MAIN_LOOP_ENTER_FUNCTION (session_main_init);
static clib_error_t *
session_config_fn (vlib_main_t * vm, unformat_input_t * input)
else if (unformat (input, "evt_qs_seg_size %U", unformat_memory_size,
&smm->evt_qs_segment_size))
;
+ else if (unformat (input, "enable"))
+ smm->session_enable_asap = 1;
else
return clib_error_return (0, "unknown input `%U'",
format_unformat_error, input);
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