session_manager_main_t session_manager_main;
extern transport_proto_vft_t *tp_vfts;
-static void
-session_send_evt_to_thread (u64 session_handle, fifo_event_type_t evt_type,
- u32 thread_index, void *fp, void *rpc_args)
+static inline int
+session_send_evt_to_thread (void *data, void *args, u32 thread_index,
+ session_evt_type_t evt_type)
{
- session_fifo_event_t evt = { {0}, };
- svm_queue_t *q;
+ session_fifo_event_t *evt;
+ svm_msg_q_msg_t msg;
+ svm_msg_q_t *mq;
u32 tries = 0, max_tries;
- evt.event_type = evt_type;
- if (evt_type == FIFO_EVENT_RPC)
- {
- evt.rpc_args.fp = fp;
- evt.rpc_args.arg = rpc_args;
- }
- else
- evt.session_handle = session_handle;
-
- q = session_manager_get_vpp_event_queue (thread_index);
- while (svm_queue_add (q, (u8 *) & evt, 1))
+ mq = session_manager_get_vpp_event_queue (thread_index);
+ while (svm_msg_q_try_lock (mq))
{
max_tries = vlib_get_current_process (vlib_get_main ())? 1e6 : 3;
if (tries++ == max_tries)
{
SESSION_DBG ("failed to enqueue evt");
- break;
+ return -1;
}
}
+ if (PREDICT_FALSE (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_fifo_event_t *) svm_msg_q_msg_data (mq, &msg);
+ evt->event_type = evt_type;
+ switch (evt_type)
+ {
+ case FIFO_EVENT_RPC:
+ evt->rpc_args.fp = data;
+ evt->rpc_args.arg = args;
+ break;
+ case FIFO_EVENT_APP_TX:
+ case FIFO_EVENT_BUILTIN_RX:
+ evt->fifo = data;
+ break;
+ case FIFO_EVENT_DISCONNECT:
+ evt->session_handle = session_handle ((stream_session_t *) data);
+ break;
+ default:
+ clib_warning ("evt unhandled!");
+ svm_msg_q_unlock (mq);
+ return -1;
+ }
+
+ svm_msg_q_add_w_lock (mq, &msg);
+ svm_msg_q_unlock (mq);
+ return 0;
}
-void
-session_send_session_evt_to_thread (u64 session_handle,
- fifo_event_type_t evt_type,
- u32 thread_index)
+int
+session_send_io_evt_to_thread (svm_fifo_t * f, session_evt_type_t evt_type)
+{
+ return session_send_evt_to_thread (f, 0, f->master_thread_index, evt_type);
+}
+
+int
+session_send_io_evt_to_thread_custom (svm_fifo_t * f, u32 thread_index,
+ session_evt_type_t evt_type)
{
- session_send_evt_to_thread (session_handle, evt_type, thread_index, 0, 0);
+ return session_send_evt_to_thread (f, 0, thread_index, evt_type);
+}
+
+int
+session_send_ctrl_evt_to_thread (stream_session_t * s,
+ session_evt_type_t evt_type)
+{
+ /* only event supported for now is disconnect */
+ ASSERT (evt_type == FIFO_EVENT_DISCONNECT);
+ return session_send_evt_to_thread (s, 0, s->thread_index,
+ FIFO_EVENT_DISCONNECT);
}
void
session_send_rpc_evt_to_thread (u32 thread_index, void *fp, void *rpc_args)
{
if (thread_index != vlib_get_thread_index ())
- session_send_evt_to_thread (0, FIFO_EVENT_RPC, thread_index, fp,
- rpc_args);
+ session_send_evt_to_thread (fp, rpc_args, thread_index, FIFO_EVENT_RPC);
else
{
void (*fnp) (void *) = fp;
/**
* Notify session peer that new data has been enqueued.
*
- * @param s Stream session for which the event is to be generated.
- * @param block Flag to indicate if call should block if event queue is full.
+ * @param s Stream session for which the event is to be generated.
+ * @param lock Flag to indicate if call should lock message queue.
*
- * @return 0 on succes or negative number if failed to send notification.
+ * @return 0 on success or negative number if failed to send notification.
*/
-static int
-session_enqueue_notify (stream_session_t * s, u8 block)
+static inline int
+session_enqueue_notify (stream_session_t * s, u8 lock)
{
application_t *app;
- session_fifo_event_t evt;
- svm_queue_t *q;
-
- if (PREDICT_FALSE (s->session_state == SESSION_STATE_CLOSED))
- {
- /* Session is closed so app will never clean up. Flush rx fifo */
- svm_fifo_dequeue_drop_all (s->server_rx_fifo);
- return 0;
- }
app = application_get_if_valid (s->app_index);
if (PREDICT_FALSE (app == 0))
return 0;
}
- /* Built-in app? Hand event to the callback... */
- if (app->cb_fns.builtin_app_rx_callback)
- return app->cb_fns.builtin_app_rx_callback (s);
-
- /* If no event, send one */
- if (svm_fifo_set_event (s->server_rx_fifo))
- {
- /* Fabricate event */
- evt.fifo = s->server_rx_fifo;
- evt.event_type = FIFO_EVENT_APP_RX;
-
- /* Add event to server's event queue */
- q = app->event_queue;
-
- /* Based on request block (or not) for lack of space */
- if (block || PREDICT_TRUE (q->cursize < q->maxsize))
- svm_queue_add (app->event_queue, (u8 *) & evt,
- 0 /* do wait for mutex */ );
- else
- {
- clib_warning ("fifo full");
- return -1;
- }
- }
-
/* *INDENT-OFF* */
SESSION_EVT_DBG(SESSION_EVT_ENQ, s, ({
- ed->data[0] = evt.event_type;
+ ed->data[0] = FIFO_EVENT_APP_RX;
ed->data[1] = svm_fifo_max_dequeue (s->server_rx_fifo);
}));
/* *INDENT-ON* */
- return 0;
+ if (lock)
+ return application_lock_and_send_event (app, s, FIFO_EVENT_APP_RX);
+
+ return application_send_event (app, s, FIFO_EVENT_APP_RX);
}
int
session_dequeue_notify (stream_session_t * s)
{
application_t *app;
- svm_queue_t *q;
app = application_get_if_valid (s->app_index);
if (PREDICT_FALSE (!app))
return -1;
- if (application_is_builtin (app))
- return 0;
+ if (session_transport_service_type (s) == TRANSPORT_SERVICE_CL)
+ return application_lock_and_send_event (app, s, FIFO_EVENT_APP_RX);
- q = app->event_queue;
- if (PREDICT_TRUE (q->cursize < q->maxsize))
- {
- session_fifo_event_t evt = {
- .event_type = FIFO_EVENT_APP_TX,
- .fifo = s->server_tx_fifo
- };
- svm_queue_add (app->event_queue, (u8 *) & evt, SVM_Q_WAIT);
- }
- else
- {
- return -1;
- }
- return 0;
+ return application_send_event (app, s, FIFO_EVENT_APP_TX);
}
/**
session_manager_flush_enqueue_events (u8 transport_proto, u32 thread_index)
{
session_manager_main_t *smm = &session_manager_main;
- u32 *indices;
+ transport_service_type_t tp_service;
+ int i, errors = 0, lock;
stream_session_t *s;
- int i, errors = 0;
+ u32 *indices;
indices = smm->session_to_enqueue[transport_proto][thread_index];
+ tp_service = transport_protocol_service_type (transport_proto);
+ lock = tp_service == TRANSPORT_SERVICE_CL;
for (i = 0; i < vec_len (indices); i++)
{
s = session_get_if_valid (indices[i], thread_index);
- if (s == 0 || session_enqueue_notify (s, 0 /* don't block */ ))
+ if (PREDICT_FALSE (!s))
+ {
+ errors++;
+ continue;
+ }
+ if (PREDICT_FALSE (session_enqueue_notify (s, lock)))
errors++;
}
evt->event_type = FIFO_EVENT_DISCONNECT;
}
else
- session_send_session_evt_to_thread (session_handle (s),
- FIFO_EVENT_DISCONNECT,
- s->thread_index);
+ session_send_ctrl_evt_to_thread (s, FIFO_EVENT_DISCONNECT);
}
/**
for (i = 0; i < vec_len (smm->vpp_event_queues); i++)
{
- smm->vpp_event_queues[i] = svm_queue_init (evt_q_length, evt_size,
- vpp_pid, 0);
+ svm_msg_q_cfg_t _cfg, *cfg = &_cfg;
+ u32 notif_q_size = clib_max (16, evt_q_length >> 4);
+ svm_msg_q_ring_cfg_t rc[SESSION_MQ_N_RINGS] = {
+ {evt_q_length, evt_size, 0}
+ ,
+ {notif_q_size, 256, 0}
+ };
+ cfg->consumer_pid = 0;
+ cfg->n_rings = 2;
+ cfg->q_nitems = evt_q_length;
+ cfg->ring_cfgs = rc;
+ smm->vpp_event_queues[i] = svm_msg_q_alloc (cfg);
}
if (smm->evt_qs_use_memfd_seg)
Code Review / vpp.git / blobdiff