{
VCL_EVENT_INVALID_EVENT,
VCL_EVENT_CONNECT_REQ_ACCEPTED,
+ VCL_EVENT_IOEVENT_RX_FIFO,
+ VCL_EVENT_IOEVENT_TX_FIFO,
VCL_EVENT_N_EVENTS
} vcl_event_id_t;
+
typedef struct vce_event_connect_request_
{
u32 accepted_session_index;
void *user_cb_data;
} vppcom_session_listener_t;
+typedef struct vppcom_session_ioevent_
+{
+ vppcom_session_ioevent_cb user_cb;
+ void *user_cb_data;
+} vppcom_session_ioevent_t;
+
+typedef struct vppcom_session_io_thread_
+{
+ pthread_t thread;
+ pthread_mutex_t vce_io_lock;
+ pthread_cond_t vce_io_cond;
+ u32 *active_session_indexes; //pool
+ vppcom_session_ioevent_t *ioevents; //pool
+ clib_spinlock_t io_sessions_lockp;
+} vppcom_session_io_thread_t;
+
typedef struct vppcom_main_t_
{
u8 init;
/* Event thread */
vce_event_thread_t event_thread;
+ /* IO thread */
+ vppcom_session_io_thread_t session_io_thread;
+
/* VPP Event-logger */
elog_main_t elog_main;
elog_track_t elog_track;
/*
* VPPCOM Utility Functions
*/
+
+
+
static inline int
vppcom_session_at_index (u32 session_index, session_t * volatile *sess)
{
return VPPCOM_OK;
}
+void *
+vppcom_session_io_thread_fn (void *arg)
+{
+ vppcom_session_io_thread_t *evt = (vppcom_session_io_thread_t *) arg;
+ u32 *session_indexes = 0, *session_index;
+ int i, rv;
+ u32 bytes = 0;
+ session_t *session;
+
+ while (1)
+ {
+ vec_reset_length (session_indexes);
+ clib_spinlock_lock (&evt->io_sessions_lockp);
+ pool_foreach (session_index, evt->active_session_indexes, (
+ {
+ vec_add1
+ (session_indexes,
+ *session_index);
+ }
+ ));
+ clib_spinlock_unlock (&evt->io_sessions_lockp);
+ if (session_indexes)
+ {
+ for (i = 0; i < vec_len (session_indexes); ++i)
+ {
+ VCL_LOCK_AND_GET_SESSION (session_indexes[i], &session);
+ bytes = svm_fifo_max_dequeue (session->rx_fifo);
+ clib_spinlock_unlock (&vcm->sessions_lockp);
+
+ if (bytes)
+ {
+ vppcom_ioevent_t *eio;
+ vce_event_t *ev;
+ u32 ev_idx;
+
+ clib_spinlock_lock (&vcm->event_thread.events_lockp);
+
+ pool_get (vcm->event_thread.vce_events, ev);
+ ev_idx = (u32) (ev - vcm->event_thread.vce_events);
+ eio = vce_get_event_data (ev, sizeof (*eio));
+ ev->evk.eid = VCL_EVENT_IOEVENT_RX_FIFO;
+ ev->evk.session_index = session_indexes[i];
+ eio->bytes = bytes;
+ eio->session_index = session_indexes[i];
+
+ clib_spinlock_unlock (&vcm->event_thread.events_lockp);
+
+ rv = vce_generate_event (&vcm->event_thread, ev_idx);
+ }
+ }
+ }
+ struct timespec ts;
+ ts.tv_sec = 0;
+ ts.tv_nsec = 1000000; /* 1 millisecond */
+ nanosleep (&ts, NULL);
+ }
+done:
+ clib_spinlock_unlock (&vcm->sessions_lockp);
+ return NULL;
+}
+
+int
+vppcom_start_io_event_thread (vppcom_session_io_thread_t * evt,
+ u8 max_sessions)
+{
+ pthread_cond_init (&(evt->vce_io_cond), NULL);
+ pthread_mutex_init (&(evt->vce_io_lock), NULL);
+
+ clib_spinlock_init (&(evt->io_sessions_lockp));
+
+ return pthread_create (&(evt->thread), NULL /* attr */ ,
+ vppcom_session_io_thread_fn, evt);
+}
+
+
static inline void
vppcom_session_table_add_listener (u64 listener_handle, u32 value)
{
* VPPCOM Event Functions
*/
+void
+vce_registered_ioevent_handler_fn (void *arg)
+{
+ vce_event_handler_reg_t *reg = (vce_event_handler_reg_t *) arg;
+ vppcom_ioevent_t *eio;
+ vce_event_t *ev;
+ u32 ioevt_ndx = (u64) (reg->handler_fn_args);
+ vppcom_session_ioevent_t *ioevent, ioevent_;
+
+ clib_spinlock_lock (&(vcm->event_thread.events_lockp));
+ ev = vce_get_event_from_index (&vcm->event_thread, reg->ev_idx);
+ eio = vce_get_event_data (ev, sizeof (*eio));
+ clib_spinlock_unlock (&(vcm->event_thread.events_lockp));
+
+ clib_spinlock_lock (&vcm->session_io_thread.io_sessions_lockp);
+ ioevent = pool_elt_at_index (vcm->session_io_thread.ioevents, ioevt_ndx);
+ ioevent_ = *ioevent;
+ clib_spinlock_unlock (&vcm->session_io_thread.io_sessions_lockp);
+ (ioevent_.user_cb) (eio, ioevent_.user_cb_data);
+ vce_clear_event (&vcm->event_thread, reg->ev_idx);
+ return;
+
+ /*TODO - Unregister check in close for this listener */
+
+}
+
void
vce_registered_listener_connect_handler_fn (void *arg)
{
vppcom_session_listener_t *session_listener =
(vppcom_session_listener_t *) reg->handler_fn_args;
+ clib_spinlock_lock (&(vcm->event_thread.events_lockp));
ev = vce_get_event_from_index (&vcm->event_thread, reg->ev_idx);
-
- ecr = (vce_event_connect_request_t *) ev->data;
+ ecr = vce_get_event_data (ev, sizeof (*ecr));
+ clib_spinlock_unlock (&(vcm->event_thread.events_lockp));
VCL_LOCK_AND_GET_SESSION (ecr->accepted_session_index, &new_session);
-
ep.is_ip4 = new_session->peer_addr.is_ip4;
ep.port = new_session->peer_port;
if (new_session->peer_addr.is_ip4)
(session_listener->user_cb) (ecr->accepted_session_index, &ep,
session_listener->user_cb_data);
- /*TODO - Unregister check in close for this listener */
+ if (vcm->session_io_thread.io_sessions_lockp)
+ {
+ /* Throw this new accepted session index into the rx poll thread pool */
+ clib_spinlock_lock (&vcm->session_io_thread.io_sessions_lockp);
+ u32 *active_session_index;
+ pool_get (vcm->session_io_thread.active_session_indexes,
+ active_session_index);
+ *active_session_index = ecr->accepted_session_index;
+ clib_spinlock_unlock (&vcm->session_io_thread.io_sessions_lockp);
+ }
+ /*TODO - Unregister check in close for this listener */
return;
done:
vce_event_t *ev;
/* Retrieve the VCL_EVENT_CONNECT_REQ_ACCEPTED event */
ev = vce_get_event_from_index (&vcm->event_thread, reg->ev_idx);
- vce_event_connect_request_t *ecr = (vce_event_connect_request_t *) ev->data;
+ vce_event_connect_request_t *ecr = vce_get_event_data (ev, sizeof (*ecr));
/* Add the accepted_session_index to the FIFO */
clib_spinlock_lock (&vcm->session_fifo_lockp);
/* Recycling the event. */
clib_spinlock_lock (&(vcm->event_thread.events_lockp));
- vcm->event_thread.recycle_event = 1;
+ ev->recycle = 1;
clib_fifo_add1 (vcm->event_thread.event_index_fifo, reg->ev_idx);
clib_spinlock_unlock (&(vcm->event_thread.events_lockp));
}
(vcm->cfg.app_scope_global ? APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE : 0) |
(app_is_proxy ? APP_OPTIONS_FLAGS_IS_PROXY : 0);
bmp->options[APP_OPTIONS_PROXY_TRANSPORT] =
- (vcm->cfg.app_proxy_transport_tcp ? 1 << TRANSPORT_PROTO_TCP : 0) |
- (vcm->cfg.app_proxy_transport_udp ? 1 << TRANSPORT_PROTO_UDP : 0);
+ (u64) ((vcm->cfg.app_proxy_transport_tcp ? 1 << TRANSPORT_PROTO_TCP : 0) |
+ (vcm->cfg.app_proxy_transport_udp ? 1 << TRANSPORT_PROTO_UDP : 0));
bmp->options[APP_OPTIONS_SEGMENT_SIZE] = vcm->cfg.segment_size;
bmp->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = vcm->cfg.add_segment_size;
bmp->options[APP_OPTIONS_RX_FIFO_SIZE] = vcm->cfg.rx_fifo_size;
/*
* Setup session
*/
+ if (vcm->session_io_thread.io_sessions_lockp)
+ {
+ // Add this connection to the active io sessions list
+ clib_spinlock_lock (&vcm->session_io_thread.io_sessions_lockp);
+ u32 *active_session_index;
+ pool_get (vcm->session_io_thread.active_session_indexes,
+ active_session_index);
+ *active_session_index = session_index;
+ clib_spinlock_unlock (&vcm->session_io_thread.io_sessions_lockp);
+ }
session->vpp_event_queue = uword_to_pointer (mp->vpp_event_queue_address,
svm_queue_t *);
/* Allocate local session and set it up */
pool_get (vcm->sessions, session);
memset (session, 0, sizeof (*session));
- session_index = session - vcm->sessions;
+ session_index = (u32) (session - vcm->sessions);
rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
rx_fifo->client_session_index = session_index;
clib_spinlock_lock (&vcm->event_thread.events_lockp);
pool_get (vcm->event_thread.vce_events, ev);
- ev->data = clib_mem_alloc (sizeof (vce_event_connect_request_t));
- ev->refcnt = 0;
ev_idx = (u32) (ev - vcm->event_thread.vce_events);
- ecr = ev->data;
+ ecr = vce_get_event_data (ev, sizeof (*ecr));
ev->evk.eid = VCL_EVENT_CONNECT_REQ_ACCEPTED;
listen_session = vppcom_session_table_lookup_listener (mp->listener_handle);
ev->evk.session_index = (u32) (listen_session - vcm->sessions);
clib_spinlock_unlock (&vcm->event_thread.events_lockp);
rv = vce_generate_event (&vcm->event_thread, ev_idx);
-
ASSERT (rv == 0);
if (VPPCOM_DEBUG > 1)
}
+/* VPP combines bind and listen as one operation. VCL manages the separation
+ * of bind and listen locally via vppcom_session_bind() and
+ * vppcom_session_listen() */
static void
vppcom_send_bind_sock (session_t * session, u32 session_index)
{
vcm->cfg.listen_queue_size);
vppcom_cfg_read (conf_fname);
+
env_var_str = getenv (VPPCOM_ENV_API_PREFIX);
if (env_var_str)
{
rv = vce_start_event_thread (&(vcm->event_thread), 20);
-
if (VPPCOM_DEBUG > 0)
clib_warning ("VCL<%d>: sending session enable", getpid ());
if (VPPCOM_DEBUG > 0)
clib_warning ("VCL<%d>: vpp handle 0x%llx, "
- "sid %u: sending bind request...",
+ "sid %u: sending VPP bind+listen request...",
getpid (), listen_vpp_handle, listen_session_index);
vppcom_send_bind_sock (listen_session, listen_session_index);
if (PREDICT_FALSE (retval))
{
if (VPPCOM_DEBUG > 0)
- clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: bind failed! "
- "returning %d (%s)", getpid (),
- listen_session->vpp_handle, listen_session_index,
- retval, vppcom_retval_str (retval));
+ clib_warning
+ ("VCL<%d>: vpp handle 0x%llx, sid %u: bind+listen failed! "
+ "returning %d (%s)", getpid (), listen_session->vpp_handle,
+ listen_session_index, retval, vppcom_retval_str (retval));
clib_spinlock_unlock (&vcm->sessions_lockp);
rv = retval;
goto done;
vce_event_key_t evk;
vppcom_session_listener_t *listener_args;
+ if (!vcm->session_io_thread.io_sessions_lockp)
+ rv = vppcom_start_io_event_thread (&vcm->session_io_thread, 100 /* DAW_TODO: ??? hard-coded value */
+ );
+ if (rv)
+ {
+ goto done;
+ }
rv = vppcom_session_listen (session_index, q_len);
if (rv)
{
goto done;
}
-
/* Register handler for connect_request event on listen_session_index */
- listener_args = clib_mem_alloc (sizeof (vppcom_session_listener_t));
+ listener_args = clib_mem_alloc (sizeof (vppcom_session_listener_t)); // DAW_TODO: Use a pool instead of thrashing the memory allocator!
listener_args->user_cb = cb;
listener_args->user_cb_data = ptr;
listener_args->user_errcb = errcb;
evk.eid = VCL_EVENT_CONNECT_REQ_ACCEPTED;
reg = vce_register_handler (&vcm->event_thread, &evk,
vce_connect_request_handler_fn, 0);
+ clib_spinlock_lock (&(vcm->event_thread.events_lockp));
ev = vce_get_event_from_index (&vcm->event_thread, reg->ev_idx);
pthread_mutex_lock (®->handler_lock);
while (!ev)
{
- rv =
- pthread_cond_timedwait (®->handler_cond, ®->handler_lock, &ts);
+ clib_spinlock_unlock (&(vcm->event_thread.events_lockp));
+ rv = pthread_cond_timedwait (®->handler_cond,
+ ®->handler_lock, &ts);
if (rv == ETIMEDOUT)
{
rv = VPPCOM_EAGAIN;
goto cleanup;
}
+ clib_spinlock_lock (&(vcm->event_thread.events_lockp));
ev = vce_get_event_from_index (&vcm->event_thread, reg->ev_idx);
}
- result = (vce_event_connect_request_t *) ev->data;
+ result = vce_get_event_data (ev, sizeof (*result));
client_session_index = result->accepted_session_index;
-
-
+ clib_spinlock_unlock (&(vcm->event_thread.events_lockp));
/* Remove from the FIFO used to service epoll */
clib_spinlock_lock (&vcm->session_fifo_lockp);
clib_spinlock_unlock (&vcm->sessions_lockp);
rv = (int) client_session_index;
- vce_clear_event (&vcm->event_thread, ev);
-
+ vce_clear_event (&vcm->event_thread, reg->ev_idx);
+ if (vcm->session_io_thread.io_sessions_lockp)
+ {
+ /* Throw this new accepted session index into the rx poll thread pool */
+ clib_spinlock_lock (&vcm->session_io_thread.io_sessions_lockp);
+ u32 *active_session_index;
+ pool_get (vcm->session_io_thread.active_session_indexes,
+ active_session_index);
+ *active_session_index = client_session_index;
+ clib_spinlock_unlock (&vcm->session_io_thread.io_sessions_lockp);
+ }
cleanup:
vce_unregister_handler (&vcm->event_thread, reg);
pthread_mutex_unlock (®->handler_lock);
return rv;
}
+int
+vppcom_session_register_ioevent_cb (uint32_t session_index,
+ vppcom_session_ioevent_cb cb,
+ uint8_t rx, void *ptr)
+{
+ int rv = VPPCOM_OK;
+ vce_event_key_t evk;
+ vppcom_session_ioevent_t *ioevent;
+
+ if (!vcm->session_io_thread.io_sessions_lockp)
+ rv = vppcom_start_io_event_thread (&vcm->session_io_thread, 100 /* DAW_TODO: ??? hard-coded value */
+ );
+
+ if (rv == VPPCOM_OK)
+ {
+ void *io_evt_ndx;
+
+ /* Register handler for ioevent on session_index */
+ clib_spinlock_lock (&vcm->session_io_thread.io_sessions_lockp);
+ pool_get (vcm->session_io_thread.ioevents, ioevent);
+ io_evt_ndx = (void *) (ioevent - vcm->session_io_thread.ioevents);
+ ioevent->user_cb = cb;
+ ioevent->user_cb_data = ptr;
+ clib_spinlock_unlock (&vcm->session_io_thread.io_sessions_lockp);
+
+ evk.session_index = session_index;
+ evk.eid = rx ? VCL_EVENT_IOEVENT_RX_FIFO : VCL_EVENT_IOEVENT_TX_FIFO;
+
+ (void) vce_register_handler (&vcm->event_thread, &evk,
+ vce_registered_ioevent_handler_fn,
+ io_evt_ndx);
+ }
+ return rv;
+}
+
int
vppcom_session_write (uint32_t session_index, void *buf, size_t n)
{
}
while (!is_nonblocking && (n_write <= 0));
- /* If event wasn't set, add one */
+ /* If event wasn't set, add one
+ *
+ * To reduce context switching, can check if an
+ * event is already there for this event_key, but for now
+ * this will suffice. */
+
if ((n_write > 0) && svm_fifo_set_event (tx_fifo))
{
/* Fabricate TX event, send to vpp */
Code Review / vpp.git / blobdiff