#include <stdlib.h>
#include <svm/svm_fifo_segment.h>
#include <vcl/vppcom.h>
-#include <vcl/vcl_event.h>
#include <vcl/vcl_debug.h>
#include <vcl/vcl_private.h>
-static const char *
-vppcom_app_state_str (app_state_t state)
-{
- char *st;
+__thread uword __vcl_worker_index = ~0;
- switch (state)
- {
- case STATE_APP_START:
- st = "STATE_APP_START";
- break;
-
- case STATE_APP_CONN_VPP:
- st = "STATE_APP_CONN_VPP";
- break;
+static u8 not_ready;
- case STATE_APP_ENABLED:
- st = "STATE_APP_ENABLED";
- break;
+void
+sigsegv_signal (int signum)
+{
+ not_ready = 1;
+}
- case STATE_APP_ATTACHED:
- st = "STATE_APP_ATTACHED";
- break;
+static void
+vcl_wait_for_memory (void *mem)
+{
+ u8 __clib_unused test;
+ if (vcm->mounting_segment)
+ {
+ while (vcm->mounting_segment)
+ ;
+ return;
+ }
+ if (1 || vcm->debug)
+ {
+ usleep (1e5);
+ return;
+ }
+ if (signal (SIGSEGV, sigsegv_signal))
+ {
+ perror ("signal()");
+ return;
+ }
+ not_ready = 0;
- default:
- st = "UNKNOWN_APP_STATE";
- break;
+again:
+ test = *(u8 *) mem;
+ if (not_ready)
+ {
+ not_ready = 0;
+ usleep (1);
+ goto again;
}
- return st;
+ signal (SIGSEGV, SIG_DFL);
}
const char *
* VPPCOM Utility Functions
*/
-static inline void
-vppcom_session_table_del_listener (u64 listener_handle)
+
+static svm_msg_q_t *
+vcl_session_vpp_evt_q (vcl_worker_t * wrk, vcl_session_t * s)
{
- listener_handle |= 1ULL << 63;
- hash_unset (vcm->session_index_by_vpp_handles, listener_handle);
+ if (vcl_session_is_ct (s))
+ return wrk->vpp_event_queues[0];
+ else
+ return wrk->vpp_event_queues[s->tx_fifo->master_thread_index];
}
-static inline int
-vppcom_wait_for_app_state_change (app_state_t app_state)
+static void
+vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
+ session_handle_t handle, int retval)
{
- f64 timeout = clib_time_now (&vcm->clib_time) + vcm->cfg.app_timeout;
+ app_session_evt_t _app_evt, *app_evt = &_app_evt;
+ session_accepted_reply_msg_t *rmp;
+ app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
+ rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
+ rmp->handle = handle;
+ rmp->context = context;
+ rmp->retval = retval;
+ app_send_ctrl_evt_to_vpp (mq, app_evt);
+}
- while (clib_time_now (&vcm->clib_time) < timeout)
+static void
+vcl_send_session_disconnected_reply (svm_msg_q_t * mq, u32 context,
+ session_handle_t handle, int retval)
+{
+ app_session_evt_t _app_evt, *app_evt = &_app_evt;
+ session_disconnected_reply_msg_t *rmp;
+ app_alloc_ctrl_evt_to_vpp (mq, app_evt,
+ SESSION_CTRL_EVT_DISCONNECTED_REPLY);
+ rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
+ rmp->handle = handle;
+ rmp->context = context;
+ rmp->retval = retval;
+ app_send_ctrl_evt_to_vpp (mq, app_evt);
+}
+
+static void
+vcl_send_session_reset_reply (svm_msg_q_t * mq, u32 context,
+ session_handle_t handle, int retval)
+{
+ app_session_evt_t _app_evt, *app_evt = &_app_evt;
+ session_reset_reply_msg_t *rmp;
+ app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_RESET_REPLY);
+ rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
+ rmp->handle = handle;
+ rmp->context = context;
+ rmp->retval = retval;
+ app_send_ctrl_evt_to_vpp (mq, app_evt);
+}
+
+static u32
+vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp)
+{
+ vcl_session_t *session, *listen_session;
+ svm_fifo_t *rx_fifo, *tx_fifo;
+ u32 vpp_wrk_index;
+ svm_msg_q_t *evt_q;
+
+ session = vcl_session_alloc (wrk);
+
+ listen_session = vcl_session_table_lookup_listener (wrk,
+ mp->listener_handle);
+ if (!listen_session)
+ {
+ svm_msg_q_t *evt_q;
+ evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
+ clib_warning ("VCL<%d>: ERROR: couldn't find listen session: "
+ "unknown vpp listener handle %llx",
+ getpid (), mp->listener_handle);
+ vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
+ VNET_API_ERROR_INVALID_ARGUMENT);
+ vcl_session_free (wrk, session);
+ return VCL_INVALID_SESSION_INDEX;
+ }
+
+ rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
+ tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
+
+ if (mp->server_event_queue_address)
+ {
+ session->vpp_evt_q = uword_to_pointer (mp->client_event_queue_address,
+ svm_msg_q_t *);
+ session->our_evt_q = uword_to_pointer (mp->server_event_queue_address,
+ svm_msg_q_t *);
+ vcl_wait_for_memory (session->vpp_evt_q);
+ rx_fifo->master_session_index = session->session_index;
+ tx_fifo->master_session_index = session->session_index;
+ rx_fifo->master_thread_index = vcl_get_worker_index ();
+ tx_fifo->master_thread_index = vcl_get_worker_index ();
+ vec_validate (wrk->vpp_event_queues, 0);
+ evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
+ wrk->vpp_event_queues[0] = evt_q;
+ }
+ else
{
- if (vcm->app_state == app_state)
- return VPPCOM_OK;
+ session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
+ svm_msg_q_t *);
+ rx_fifo->client_session_index = session->session_index;
+ tx_fifo->client_session_index = session->session_index;
+ rx_fifo->client_thread_index = vcl_get_worker_index ();
+ tx_fifo->client_thread_index = vcl_get_worker_index ();
+ vpp_wrk_index = tx_fifo->master_thread_index;
+ vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
+ wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
+ }
+
+ session->vpp_handle = mp->handle;
+ session->client_context = mp->context;
+ session->rx_fifo = rx_fifo;
+ session->tx_fifo = tx_fifo;
+
+ session->session_state = STATE_ACCEPT;
+ session->transport.rmt_port = mp->port;
+ session->transport.is_ip4 = mp->is_ip4;
+ clib_memcpy_fast (&session->transport.rmt_ip, mp->ip,
+ sizeof (ip46_address_t));
+
+ vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
+ session->transport.lcl_port = listen_session->transport.lcl_port;
+ session->transport.lcl_ip = listen_session->transport.lcl_ip;
+ session->session_type = listen_session->session_type;
+ session->is_dgram = session->session_type == VPPCOM_PROTO_UDP;
+
+ VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: client accept request from %s"
+ " address %U port %d queue %p!", getpid (), mp->handle,
+ session->session_index,
+ mp->is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->ip,
+ mp->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
+ clib_net_to_host_u16 (mp->port), session->vpp_evt_q);
+ vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
+
+ return session->session_index;
+}
+
+static u32
+vcl_session_connected_handler (vcl_worker_t * wrk,
+ session_connected_msg_t * mp)
+{
+ u32 session_index, vpp_wrk_index;
+ svm_fifo_t *rx_fifo, *tx_fifo;
+ vcl_session_t *session = 0;
+ svm_msg_q_t *evt_q;
+
+ session_index = mp->context;
+ session = vcl_session_get (wrk, session_index);
+ if (!session)
+ {
+ clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: "
+ "Invalid session index (%u)!",
+ getpid (), mp->handle, session_index);
+ return VCL_INVALID_SESSION_INDEX;
+ }
+ if (mp->retval)
+ {
+ clib_warning ("VCL<%d>: ERROR: sid %u: connect failed! %U", getpid (),
+ session_index, format_api_error, ntohl (mp->retval));
+ session->session_state = STATE_FAILED;
+ session->vpp_handle = mp->handle;
+ return session_index;
}
- VDBG (0, "VCL<%d>: timeout waiting for state %s (%d)", getpid (),
- vppcom_app_state_str (app_state), app_state);
- vcl_evt (VCL_EVT_SESSION_TIMEOUT, vcm, app_state);
- return VPPCOM_ETIMEDOUT;
+ rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
+ tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
+ vcl_wait_for_memory (rx_fifo);
+ rx_fifo->client_session_index = session_index;
+ tx_fifo->client_session_index = session_index;
+ rx_fifo->client_thread_index = vcl_get_worker_index ();
+ tx_fifo->client_thread_index = vcl_get_worker_index ();
+
+ if (mp->client_event_queue_address)
+ {
+ session->vpp_evt_q = uword_to_pointer (mp->server_event_queue_address,
+ svm_msg_q_t *);
+ session->our_evt_q = uword_to_pointer (mp->client_event_queue_address,
+ svm_msg_q_t *);
+
+ vec_validate (wrk->vpp_event_queues, 0);
+ evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
+ wrk->vpp_event_queues[0] = evt_q;
+ }
+ else
+ {
+ session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
+ svm_msg_q_t *);
+ vpp_wrk_index = tx_fifo->master_thread_index;
+ vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
+ wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
+ }
+
+ session->rx_fifo = rx_fifo;
+ session->tx_fifo = tx_fifo;
+ session->vpp_handle = mp->handle;
+ session->transport.is_ip4 = mp->is_ip4;
+ clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
+ sizeof (session->transport.lcl_ip));
+ session->transport.lcl_port = mp->lcl_port;
+ session->session_state = STATE_CONNECT;
+
+ /* Add it to lookup table */
+ hash_set (wrk->session_index_by_vpp_handles, mp->handle, session_index);
+
+ VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: connect succeeded! "
+ "session_rx_fifo %p, refcnt %d, session_tx_fifo %p, refcnt %d",
+ getpid (), mp->handle, session_index, session->rx_fifo,
+ session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
+
+ return session_index;
+}
+
+static u32
+vcl_session_reset_handler (vcl_worker_t * wrk,
+ session_reset_msg_t * reset_msg)
+{
+ vcl_session_t *session;
+ u32 sid;
+
+ sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
+ session = vcl_session_get (wrk, sid);
+ if (!session)
+ {
+ VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
+ return VCL_INVALID_SESSION_INDEX;
+ }
+ session->session_state = STATE_CLOSE_ON_EMPTY;
+ VDBG (0, "reset handle 0x%llx, sid %u ", reset_msg->handle, sid);
+ vcl_send_session_reset_reply (vcl_session_vpp_evt_q (wrk, session),
+ vcm->my_client_index, reset_msg->handle, 0);
+ return sid;
+}
+
+static u32
+vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
+{
+ vcl_session_t *session;
+ u32 sid = mp->context;
+
+ session = vcl_session_get (wrk, sid);
+ if (mp->retval)
+ {
+ VDBG (0, "VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: bind failed: %U",
+ getpid (), mp->handle, sid, format_api_error, ntohl (mp->retval));
+ if (session)
+ {
+ session->session_state = STATE_FAILED;
+ session->vpp_handle = mp->handle;
+ return sid;
+ }
+ else
+ {
+ clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: "
+ "Invalid session index (%u)!",
+ getpid (), mp->handle, sid);
+ return VCL_INVALID_SESSION_INDEX;
+ }
+ }
+
+ session->vpp_handle = mp->handle;
+ session->transport.is_ip4 = mp->lcl_is_ip4;
+ clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
+ sizeof (ip46_address_t));
+ session->transport.lcl_port = mp->lcl_port;
+ vcl_session_table_add_listener (wrk, mp->handle, sid);
+ session->session_state = STATE_LISTEN;
+
+ if (session->is_dgram)
+ {
+ svm_fifo_t *rx_fifo, *tx_fifo;
+ session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
+ rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
+ rx_fifo->client_session_index = sid;
+ tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
+ tx_fifo->client_session_index = sid;
+ session->rx_fifo = rx_fifo;
+ session->tx_fifo = tx_fifo;
+ }
+
+ VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: bind succeeded!",
+ getpid (), mp->handle, sid);
+ return sid;
+}
+
+static int
+vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
+{
+ session_accepted_msg_t *accepted_msg;
+ session_disconnected_msg_t *disconnected_msg;
+ vcl_session_msg_t *vcl_msg;
+ vcl_session_t *session;
+ u64 handle;
+ u32 sid;
+
+ switch (e->event_type)
+ {
+ case FIFO_EVENT_APP_RX:
+ case FIFO_EVENT_APP_TX:
+ case SESSION_IO_EVT_CT_RX:
+ case SESSION_IO_EVT_CT_TX:
+ vec_add1 (wrk->unhandled_evts_vector, *e);
+ break;
+ case SESSION_CTRL_EVT_ACCEPTED:
+ accepted_msg = (session_accepted_msg_t *) e->data;
+ handle = accepted_msg->listener_handle;
+ session = vcl_session_table_lookup_listener (wrk, handle);
+ if (!session)
+ {
+ clib_warning ("VCL<%d>: ERROR: couldn't find listen session:"
+ "listener handle %llx", getpid (), handle);
+ break;
+ }
+
+ clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
+ vcl_msg->accepted_msg = *accepted_msg;
+ break;
+ case SESSION_CTRL_EVT_CONNECTED:
+ vcl_session_connected_handler (wrk,
+ (session_connected_msg_t *) e->data);
+ break;
+ case SESSION_CTRL_EVT_DISCONNECTED:
+ disconnected_msg = (session_disconnected_msg_t *) e->data;
+ sid = vcl_session_index_from_vpp_handle (wrk, disconnected_msg->handle);
+ session = vcl_session_get (wrk, sid);
+ if (!session)
+ {
+ VDBG (0, "request to disconnect unknown handle 0x%llx",
+ disconnected_msg->handle);
+ break;
+ }
+ session->session_state = STATE_DISCONNECT;
+ VDBG (0, "disconnected handle 0x%llx, sid %u", disconnected_msg->handle,
+ sid);
+ break;
+ case SESSION_CTRL_EVT_RESET:
+ vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
+ break;
+ case SESSION_CTRL_EVT_BOUND:
+ vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
+ break;
+ default:
+ clib_warning ("unhandled %u", e->event_type);
+ }
+ return VPPCOM_OK;
}
static inline int
session_state_t state,
f64 wait_for_time)
{
- f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time;
+ vcl_worker_t *wrk = vcl_worker_get_current ();
+ f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
vcl_session_t *volatile session;
- int rv;
+ svm_msg_q_msg_t msg;
+ session_event_t *e;
do
{
- VCL_SESSION_LOCK ();
- rv = vppcom_session_at_index (session_index, &session);
- if (PREDICT_FALSE (rv))
+ session = vcl_session_get (wrk, session_index);
+ if (PREDICT_FALSE (!session))
{
- VCL_SESSION_UNLOCK ();
- return rv;
+ return VPPCOM_EBADFD;
}
if (session->session_state & state)
{
- VCL_SESSION_UNLOCK ();
return VPPCOM_OK;
}
if (session->session_state & STATE_FAILED)
{
- VCL_SESSION_UNLOCK ();
return VPPCOM_ECONNREFUSED;
}
- VCL_SESSION_UNLOCK ();
+ if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
+ continue;
+ e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
+ vcl_handle_mq_event (wrk, e);
+ svm_msg_q_free_msg (wrk->app_event_queue, &msg);
}
- while (clib_time_now (&vcm->clib_time) < timeout);
+ while (clib_time_now (&wrk->clib_time) < timeout);
VDBG (0, "VCL<%d>: timeout waiting for state 0x%x (%s)", getpid (), state,
vppcom_session_state_str (state));
if (vcm->app_state != STATE_APP_ENABLED)
{
vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
- rv = vppcom_wait_for_app_state_change (STATE_APP_ENABLED);
+ rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
if (PREDICT_FALSE (rv))
{
VDBG (0, "VCL<%d>: application session enable timed out! "
int rv;
vppcom_app_send_attach ();
- rv = vppcom_wait_for_app_state_change (STATE_APP_ATTACHED);
+ rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
if (PREDICT_FALSE (rv))
{
VDBG (0, "VCL<%d>: application attach timed out! returning %d (%s)",
}
static int
-vppcom_session_unbind (u32 session_index)
+vppcom_session_unbind (u32 session_handle)
{
+ vcl_worker_t *wrk = vcl_worker_get_current ();
vcl_session_t *session = 0;
- int rv;
u64 vpp_handle;
- VCL_SESSION_LOCK_AND_GET (session_index, &session);
+ session = vcl_session_get_w_handle (wrk, session_handle);
+ if (!session)
+ return VPPCOM_EBADFD;
vpp_handle = session->vpp_handle;
- vppcom_session_table_del_listener (vpp_handle);
+ vcl_session_table_del_listener (wrk, vpp_handle);
session->vpp_handle = ~0;
session->session_state = STATE_DISCONNECT;
- VCL_SESSION_UNLOCK ();
-
VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending unbind msg! new state"
- " 0x%x (%s)", getpid (), vpp_handle, session_index, STATE_DISCONNECT,
+ " 0x%x (%s)", getpid (), vpp_handle, session_handle, STATE_DISCONNECT,
vppcom_session_state_str (STATE_DISCONNECT));
vcl_evt (VCL_EVT_UNBIND, session);
vppcom_send_unbind_sock (vpp_handle);
-done:
- return rv;
+ return VPPCOM_OK;
}
static int
-vppcom_session_disconnect (u32 session_index)
+vppcom_session_disconnect (u32 session_handle)
{
- int rv;
+ vcl_worker_t *wrk = vcl_worker_get_current ();
+ svm_msg_q_t *vpp_evt_q;
vcl_session_t *session;
- u64 vpp_handle;
session_state_t state;
+ u64 vpp_handle;
- VCL_SESSION_LOCK_AND_GET (session_index, &session);
+ session = vcl_session_get_w_handle (wrk, session_handle);
+ if (!session)
+ return VPPCOM_EBADFD;
vpp_handle = session->vpp_handle;
state = session->session_state;
- VCL_SESSION_UNLOCK ();
VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u state 0x%x (%s)", getpid (),
- vpp_handle, session_index, state, vppcom_session_state_str (state));
+ vpp_handle, session_handle, state, vppcom_session_state_str (state));
if (PREDICT_FALSE (state & STATE_LISTEN))
{
clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
"Cannot disconnect a listen socket!",
- getpid (), vpp_handle, session_index);
- rv = VPPCOM_EBADFD;
- goto done;
+ getpid (), vpp_handle, session_handle);
+ return VPPCOM_EBADFD;
}
- /* The peer has already initiated the close,
- * so send the disconnect session reply.
- */
if (state & STATE_CLOSE_ON_EMPTY)
{
- //XXX alagalah - Check and drain here?
- vppcom_send_disconnect_session_reply (vpp_handle,
- session_index, 0 /* rv */ );
+ vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
+ vcl_send_session_disconnected_reply (vpp_evt_q, vcm->my_client_index,
+ vpp_handle, 0);
VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending disconnect "
- "REPLY...", getpid (), vpp_handle, session_index);
+ "REPLY...", getpid (), vpp_handle, session_handle);
}
-
- /* Otherwise, send a disconnect session msg...
- */
else
{
VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending disconnect...",
- getpid (), vpp_handle, session_index);
+ getpid (), vpp_handle, session_handle);
+ vppcom_send_disconnect_session (vpp_handle);
+ }
+
+ return VPPCOM_OK;
+}
+
+static void
+vcl_cleanup_bapi (void)
+{
+ api_main_t *am = &api_main;
+
+ am->my_client_index = ~0;
+ am->my_registration = 0;
+ am->vl_input_queue = 0;
+ am->msg_index_by_name_and_crc = 0;
- vppcom_send_disconnect_session (vpp_handle, session_index);
+ vl_client_api_unmap ();
+}
+
+void
+vcl_app_fork_child_handler (void)
+{
+ u8 *child_name;
+ int rv;
+
+ vcm->current_pid = getpid ();
+ vcl_set_worker_index (0);
+
+ VDBG (0, "initializing forked child");
+ child_name = format (0, "%v-child-%u%c", vcm->app_name, getpid (), 0);
+
+ vcl_cleanup_bapi ();
+ vppcom_api_hookup ();
+ vcm->app_state = STATE_APP_START;
+ rv = vppcom_connect_to_vpp ((char *) child_name);
+ vec_free (child_name);
+ if (rv)
+ {
+ VERR ("couldn't connect to VPP!");
+ return;
}
-done:
- return rv;
+ vcm->app_state = STATE_APP_ADDING_WORKER;
+ vcl_send_app_worker_add_del (1 /* is_add */ );
+ if (vcl_wait_for_app_state_change (STATE_APP_READY))
+ {
+ VERR ("failed to add worker to vpp");
+ return;
+ }
+ VDBG (0, "forked child main worker initialized");
}
/*
vppcom_app_create (char *app_name)
{
vppcom_cfg_t *vcl_cfg = &vcm->cfg;
- u8 *heap;
- mheap_t *h;
int rv;
- if (!vcm->init)
+ if (!vcm->is_init)
{
- vcm->init = 1;
- clib_spinlock_init (&vcm->session_fifo_lockp);
- clib_fifo_validate (vcm->client_session_index_fifo,
- vcm->cfg.listen_queue_size);
- clib_spinlock_init (&vcm->sessions_lockp);
-
+ vcm->is_init = 1;
vppcom_cfg (&vcm->cfg);
+ vcl_cfg = &vcm->cfg;
- vcm->main_cpu = os_get_thread_index ();
- heap = clib_mem_get_per_cpu_heap ();
- h = mheap_header (heap);
- /* make the main heap thread-safe */
- h->flags |= MHEAP_FLAG_THREAD_SAFE;
-
- vcm->session_index_by_vpp_handles = hash_create (0, sizeof (uword));
-
- clib_time_init (&vcm->clib_time);
+ vcm->main_cpu = pthread_self ();
+ vcm->main_pid = vcm->current_pid = getpid ();
+ vcm->app_name = format (0, "%s", app_name);
vppcom_init_error_string_table ();
svm_fifo_segment_main_init (vcl_cfg->segment_baseva,
20 /* timeout in secs */ );
+ pool_init_fixed (vcm->workers, vcl_cfg->max_workers);
+ clib_spinlock_init (&vcm->workers_lock);
+ vcl_worker_alloc_and_init ();
+ pthread_atfork (NULL, NULL, vcl_app_fork_child_handler);
}
if (vcm->my_client_index == ~0)
rv = vppcom_connect_to_vpp (app_name);
if (rv)
{
- clib_warning ("VCL<%d>: ERROR: couldn't connect to VPP!",
- getpid ());
+ VERR ("couldn't connect to VPP!");
return rv;
}
-
- /* State event handling thread */
-
- rv = vce_start_event_thread (&(vcm->event_thread), 20);
-
- VDBG (0, "VCL<%d>: sending session enable", getpid ());
-
+ VDBG (0, "sending session enable");
rv = vppcom_app_session_enable ();
if (rv)
{
- clib_warning ("VCL<%d>: ERROR: vppcom_app_session_enable() "
- "failed!", getpid ());
+ VERR ("vppcom_app_session_enable() failed!");
return rv;
}
- VDBG (0, "VCL<%d>: sending app attach", getpid ());
-
+ VDBG (0, "sending app attach");
rv = vppcom_app_attach ();
if (rv)
{
- clib_warning ("VCL<%d>: ERROR: vppcom_app_attach() failed!",
- getpid ());
+ VERR ("vppcom_app_attach() failed!");
return rv;
}
- VDBG (0, "VCL<%d>: app_name '%s', my_client_index %d (0x%x)",
- getpid (), app_name, vcm->my_client_index, vcm->my_client_index);
+ VDBG (0, "app_name '%s', my_client_index %d (0x%x)",
+ app_name, vcm->my_client_index, vcm->my_client_index);
}
return VPPCOM_OK;
if (vcm->my_client_index == ~0)
return;
- VDBG (0, "VCL<%d>: detaching from VPP, my_client_index %d (0x%x)",
- getpid (), vcm->my_client_index, vcm->my_client_index);
+ VDBG (0, "detaching from VPP, my_client_index %d (0x%x)",
+ vcm->my_client_index, vcm->my_client_index);
vcl_evt (VCL_EVT_DETACH, vcm);
vppcom_app_send_detach ();
orig_app_timeout = vcm->cfg.app_timeout;
vcm->cfg.app_timeout = 2.0;
- rv = vppcom_wait_for_app_state_change (STATE_APP_ENABLED);
+ rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
vcm->cfg.app_timeout = orig_app_timeout;
if (PREDICT_FALSE (rv))
- VDBG (0, "VCL<%d>: application detach timed out! returning %d (%s)",
- getpid (), rv, vppcom_retval_str (rv));
+ VDBG (0, "application detach timed out! returning %d (%s)",
+ rv, vppcom_retval_str (rv));
vcl_elog_stop (vcm);
vl_client_disconnect_from_vlib ();
+ vec_free (vcm->app_name);
vcm->my_client_index = ~0;
vcm->app_state = STATE_APP_START;
}
int
vppcom_session_create (u8 proto, u8 is_nonblocking)
{
+ vcl_worker_t *wrk = vcl_worker_get_current ();
vcl_session_t *session;
- u32 session_index;
- VCL_SESSION_LOCK ();
- pool_get (vcm->sessions, session);
- memset (session, 0, sizeof (*session));
- session_index = session - vcm->sessions;
+ session = vcl_session_alloc (wrk);
session->session_type = proto;
session->session_state = STATE_START;
session->vpp_handle = ~0;
+ session->is_dgram = proto == VPPCOM_PROTO_UDP;
if (is_nonblocking)
VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
- else
- VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
is_nonblocking, session_index);
- VCL_SESSION_UNLOCK ();
+ VDBG (0, "created sid %u", session->session_index);
- VDBG (0, "VCL<%d>: sid %u", getpid (), session_index);
-
- return (int) session_index;
+ return vcl_session_handle (session);
}
int
-vppcom_session_close (uint32_t session_index)
+vppcom_session_close (uint32_t session_handle)
{
+ vcl_worker_t *wrk = vcl_worker_get_current ();
vcl_session_t *session = 0;
- int rv;
- u8 is_vep;
- u8 is_vep_session;
- u32 next_sid;
- u32 vep_idx;
- u64 vpp_handle;
- uword *p;
+ u8 is_vep, is_vep_session;
session_state_t state;
+ u32 next_sh, vep_sh;
+ int rv = VPPCOM_OK;
+ u64 vpp_handle;
+
+ session = vcl_session_get_w_handle (wrk, session_handle);
+ if (!session)
+ return VPPCOM_EBADFD;
- VCL_SESSION_LOCK_AND_GET (session_index, &session);
is_vep = session->is_vep;
is_vep_session = session->is_vep_session;
- next_sid = session->vep.next_sid;
- vep_idx = session->vep.vep_idx;
+ next_sh = session->vep.next_sh;
+ vep_sh = session->vep.vep_sh;
state = session->session_state;
vpp_handle = session->vpp_handle;
- VCL_SESSION_UNLOCK ();
if (VPPCOM_DEBUG > 0)
{
if (is_vep)
clib_warning ("VCL<%d>: vep_idx %u / sid %u: "
"closing epoll session...",
- getpid (), session_index, session_index);
+ getpid (), session_handle, session_handle);
else
clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %d: "
"closing session...",
- getpid (), vpp_handle, session_index);
+ getpid (), vpp_handle, session_handle);
}
if (is_vep)
{
- while (next_sid != ~0)
+ while (next_sh != ~0)
{
- rv = vppcom_epoll_ctl (session_index, EPOLL_CTL_DEL, next_sid, 0);
+ rv = vppcom_epoll_ctl (session_handle, EPOLL_CTL_DEL, next_sh, 0);
if (PREDICT_FALSE (rv < 0))
VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: EPOLL_CTL_DEL "
"vep_idx %u failed! rv %d (%s)",
- getpid (), vpp_handle, next_sid, vep_idx,
+ getpid (), vpp_handle, next_sh, vep_sh,
rv, vppcom_retval_str (rv));
- VCL_SESSION_LOCK_AND_GET (session_index, &session);
- next_sid = session->vep.next_sid;
- VCL_SESSION_UNLOCK ();
+ next_sh = session->vep.next_sh;
}
}
else
{
if (is_vep_session)
{
- rv = vppcom_epoll_ctl (vep_idx, EPOLL_CTL_DEL, session_index, 0);
+ rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, session_handle, 0);
if (rv < 0)
VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: EPOLL_CTL_DEL "
"vep_idx %u failed! rv %d (%s)",
- getpid (), vpp_handle, session_index,
- vep_idx, rv, vppcom_retval_str (rv));
+ getpid (), vpp_handle, session_handle,
+ vep_sh, rv, vppcom_retval_str (rv));
}
if (state & STATE_LISTEN)
{
- rv = vppcom_session_unbind (session_index);
+ rv = vppcom_session_unbind (session_handle);
if (PREDICT_FALSE (rv < 0))
VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: listener unbind "
"failed! rv %d (%s)",
- getpid (), vpp_handle, session_index,
+ getpid (), vpp_handle, session_handle,
rv, vppcom_retval_str (rv));
}
-
- else if (state & (CLIENT_STATE_OPEN | SERVER_STATE_OPEN))
+ else if (state & STATE_OPEN)
{
- rv = vppcom_session_disconnect (session_index);
+ rv = vppcom_session_disconnect (session_handle);
if (PREDICT_FALSE (rv < 0))
clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
"session disconnect failed! rv %d (%s)",
- getpid (), vpp_handle, session_index,
+ getpid (), vpp_handle, session_handle,
rv, vppcom_retval_str (rv));
}
}
- VCL_SESSION_LOCK_AND_GET (session_index, &session);
- vpp_handle = session->vpp_handle;
- if (vpp_handle != ~0)
+ if (vcl_session_is_ct (session))
{
- p = hash_get (vcm->session_index_by_vpp_handles, vpp_handle);
- if (p)
- hash_unset (vcm->session_index_by_vpp_handles, vpp_handle);
+ vcl_cut_through_registration_t *ctr;
+ uword mq_addr;
+
+ mq_addr = pointer_to_uword (session->our_evt_q);
+ ctr = vcl_ct_registration_lock_and_lookup (wrk, mq_addr);
+ ASSERT (ctr);
+ if (ctr->epoll_evt_conn_index != ~0)
+ vcl_mq_epoll_del_evfd (wrk, ctr->epoll_evt_conn_index);
+ VDBG (0, "Removing ct registration %u",
+ vcl_ct_registration_index (wrk, ctr));
+ vcl_ct_registration_del (wrk, ctr);
+ vcl_ct_registration_lookup_del (wrk, mq_addr);
+ vcl_ct_registration_unlock (wrk);
}
- pool_put_index (vcm->sessions, session_index);
- VCL_SESSION_UNLOCK ();
+ if (vpp_handle != ~0)
+ {
+ vcl_session_table_del_vpp_handle (wrk, vpp_handle);
+ }
+ vcl_session_free (wrk, session);
if (VPPCOM_DEBUG > 0)
{
if (is_vep)
clib_warning ("VCL<%d>: vep_idx %u / sid %u: epoll session removed.",
- getpid (), session_index, session_index);
+ getpid (), session_handle, session_handle);
else
clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: session removed.",
- getpid (), vpp_handle, session_index);
+ getpid (), vpp_handle, session_handle);
}
-done:
vcl_evt (VCL_EVT_CLOSE, session, rv);
}
int
-vppcom_session_bind (uint32_t session_index, vppcom_endpt_t * ep)
+vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
{
+ vcl_worker_t *wrk = vcl_worker_get_current ();
vcl_session_t *session = 0;
- int rv;
if (!ep || !ep->ip)
return VPPCOM_EINVAL;
- VCL_SESSION_LOCK_AND_GET (session_index, &session);
+ session = vcl_session_get_w_handle (wrk, session_handle);
+ if (!session)
+ return VPPCOM_EBADFD;
if (session->is_vep)
{
- VCL_SESSION_UNLOCK ();
clib_warning ("VCL<%d>: ERROR: sid %u: cannot "
- "bind to an epoll session!", getpid (), session_index);
- rv = VPPCOM_EBADFD;
- goto done;
+ "bind to an epoll session!", getpid (), session_handle);
+ return VPPCOM_EBADFD;
}
session->transport.is_ip4 = ep->is_ip4;
- session->transport.lcl_ip = to_ip46 (ep->is_ip4 ? IP46_TYPE_IP4 :
- IP46_TYPE_IP6, ep->ip);
+ if (ep->is_ip4)
+ clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
+ sizeof (ip4_address_t));
+ else
+ clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
+ sizeof (ip6_address_t));
session->transport.lcl_port = ep->port;
VDBG (0, "VCL<%d>: sid %u: binding to local %s address %U port %u, "
- "proto %s", getpid (), session_index,
+ "proto %s", getpid (), session_handle,
session->transport.is_ip4 ? "IPv4" : "IPv6",
format_ip46_address, &session->transport.lcl_ip,
session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
clib_net_to_host_u16 (session->transport.lcl_port),
session->session_type ? "UDP" : "TCP");
vcl_evt (VCL_EVT_BIND, session);
- VCL_SESSION_UNLOCK ();
-done:
- return rv;
+
+ if (session->session_type == VPPCOM_PROTO_UDP)
+ vppcom_session_listen (session_handle, 10);
+
+ return VPPCOM_OK;
}
int
-vppcom_session_listen (uint32_t listen_session_index, uint32_t q_len)
+vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
{
+ vcl_worker_t *wrk = vcl_worker_get_current ();
vcl_session_t *listen_session = 0;
u64 listen_vpp_handle;
- int rv, retval;
+ int rv;
+
+ listen_session = vcl_session_get_w_handle (wrk, listen_sh);
+ if (!listen_session)
+ return VPPCOM_EBADFD;
if (q_len == 0 || q_len == ~0)
q_len = vcm->cfg.listen_queue_size;
- VCL_SESSION_LOCK_AND_GET (listen_session_index, &listen_session);
-
if (listen_session->is_vep)
{
- VCL_SESSION_UNLOCK ();
clib_warning ("VCL<%d>: ERROR: sid %u: cannot listen on an "
- "epoll session!", getpid (), listen_session_index);
- rv = VPPCOM_EBADFD;
- goto done;
+ "epoll session!", getpid (), listen_sh);
+ return VPPCOM_EBADFD;
}
listen_vpp_handle = listen_session->vpp_handle;
if (listen_session->session_state & STATE_LISTEN)
{
- VCL_SESSION_UNLOCK ();
VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: already in listen state!",
- getpid (), listen_vpp_handle, listen_session_index);
- rv = VPPCOM_OK;
- goto done;
+ getpid (), listen_vpp_handle, listen_sh);
+ return VPPCOM_OK;
}
VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: sending VPP bind+listen "
- "request...", getpid (), listen_vpp_handle, listen_session_index);
+ "request...", getpid (), listen_vpp_handle, listen_sh);
- vppcom_send_bind_sock (listen_session, listen_session_index);
- VCL_SESSION_UNLOCK ();
- retval =
- vppcom_wait_for_session_state_change (listen_session_index, STATE_LISTEN,
- vcm->cfg.session_timeout);
+ /*
+ * Send listen request to vpp and wait for reply
+ */
+ vppcom_send_bind_sock (listen_session);
+ rv = vppcom_wait_for_session_state_change (listen_session->session_index,
+ STATE_LISTEN,
+ vcm->cfg.session_timeout);
- VCL_SESSION_LOCK_AND_GET (listen_session_index, &listen_session);
- if (PREDICT_FALSE (retval))
+ if (PREDICT_FALSE (rv))
{
+ listen_session = vcl_session_get_w_handle (wrk, listen_sh);
VDBG (0, "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));
- VCL_SESSION_UNLOCK ();
- rv = retval;
- goto done;
+ listen_sh, rv, vppcom_retval_str (rv));
+ return rv;
}
- VCL_ACCEPT_FIFO_LOCK ();
- clib_fifo_validate (vcm->client_session_index_fifo, q_len);
- VCL_ACCEPT_FIFO_UNLOCK ();
-
- VCL_SESSION_UNLOCK ();
-
-done:
- return rv;
+ return VPPCOM_OK;
}
-int
-validate_args_session_accept_ (vcl_session_t * listen_session)
+static int
+validate_args_session_accept_ (vcl_worker_t * wrk,
+ vcl_session_t * listen_session)
{
- u32 listen_session_index = listen_session - vcm->sessions;
-
/* Input validation - expects spinlock on sessions_lockp */
if (listen_session->is_vep)
{
clib_warning ("VCL<%d>: ERROR: sid %u: cannot accept on an "
- "epoll session!", getpid (), listen_session_index);
+ "epoll session!", getpid (),
+ listen_session->session_index);
return VPPCOM_EBADFD;
}
{
clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
"not in listen state! state 0x%x (%s)", getpid (),
- listen_session->vpp_handle, listen_session_index,
+ listen_session->vpp_handle, listen_session->session_index,
listen_session->session_state,
vppcom_session_state_str (listen_session->session_state));
return VPPCOM_EBADFD;
}
int
-vppcom_session_accept (uint32_t listen_session_index, vppcom_endpt_t * ep,
+vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
uint32_t flags)
{
+ u32 client_session_index = ~0, listen_session_index;
+ vcl_worker_t *wrk = vcl_worker_get_current ();
+ session_accepted_msg_t accepted_msg;
vcl_session_t *listen_session = 0;
vcl_session_t *client_session = 0;
- u32 client_session_index = ~0;
- int rv;
+ svm_msg_q_t *vpp_evt_q;
+ vcl_session_msg_t *evt;
u64 listen_vpp_handle;
- vce_event_handler_reg_t *reg;
- vce_event_t *ev;
- vce_event_connect_request_t *result;
- struct timespec ts;
- struct timeval tv;
- int millisecond_timeout = 1;
- int hours_timeout = 20 * 60 * 60;
-
- VCL_SESSION_LOCK_AND_GET (listen_session_index, &listen_session);
- listen_vpp_handle = listen_session->vpp_handle; // For debugging
-
- rv = validate_args_session_accept_ (listen_session);
- if (rv)
- {
- VCL_SESSION_UNLOCK ();
- goto done;
- }
+ svm_msg_q_msg_t msg;
+ session_event_t *e;
+ u8 is_nonblocking;
+ int rv;
- /* Using an aggressive timer of 1ms and a generous timer of
- * 20 hours, we can implement a blocking and non-blocking listener
- * as both event and time driven */
- gettimeofday (&tv, NULL);
- ts.tv_nsec = (tv.tv_usec * 1000) + (1000 * millisecond_timeout);
- ts.tv_sec = tv.tv_sec;
+ listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
+ if (!listen_session)
+ return VPPCOM_EBADFD;
- /* Predict that the Listener is blocking more often than not */
- if (PREDICT_TRUE (!VCL_SESS_ATTR_TEST (listen_session->attr,
- VCL_SESS_ATTR_NONBLOCK)))
- ts.tv_sec += hours_timeout;
+ listen_session_index = listen_session->session_index;
+ if ((rv = validate_args_session_accept_ (wrk, listen_session)))
+ return rv;
+
+ if (clib_fifo_elts (listen_session->accept_evts_fifo))
+ {
+ clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
+ accepted_msg = evt->accepted_msg;
+ goto handle;
+ }
- VCL_SESSION_UNLOCK ();
+ is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
+ VCL_SESS_ATTR_NONBLOCK);
+ if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
+ return VPPCOM_EAGAIN;
- /* Register handler for connect_request event on listen_session_index */
- vce_event_key_t evk;
- evk.session_index = listen_session_index;
- evk.eid = VCL_EVENT_CONNECT_REQ_ACCEPTED;
- reg = vce_register_handler (&vcm->event_thread, &evk,
- vce_connect_request_handler_fn, 0);
- VCL_EVENTS_LOCK ();
- ev = vce_get_event_from_index (&vcm->event_thread, reg->ev_idx);
- pthread_mutex_lock (®->handler_lock);
- while (!ev)
+ while (1)
{
- VCL_EVENTS_UNLOCK ();
- rv = pthread_cond_timedwait (®->handler_cond,
- ®->handler_lock, &ts);
- if (rv == ETIMEDOUT)
+ if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
+ return VPPCOM_EAGAIN;
+
+ e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
+ if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
{
- rv = VPPCOM_EAGAIN;
- goto cleanup;
+ clib_warning ("discarded event: %u", e->event_type);
+ svm_msg_q_free_msg (wrk->app_event_queue, &msg);
+ continue;
}
- VCL_EVENTS_LOCK ();
- ev = vce_get_event_from_index (&vcm->event_thread, reg->ev_idx);
+ clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
+ svm_msg_q_free_msg (wrk->app_event_queue, &msg);
+ break;
}
- result = vce_get_event_data (ev, sizeof (*result));
- client_session_index = result->accepted_session_index;
- VCL_EVENTS_UNLOCK ();
- /* Remove from the FIFO used to service epoll */
- VCL_ACCEPT_FIFO_LOCK ();
- if (clib_fifo_elts (vcm->client_session_index_fifo))
- {
- u32 tmp_client_session_index;
- clib_fifo_sub1 (vcm->client_session_index_fifo,
- tmp_client_session_index);
- /* It wasn't ours... put it back ... */
- if (tmp_client_session_index != client_session_index)
- clib_fifo_add1 (vcm->client_session_index_fifo,
- tmp_client_session_index);
- }
- VCL_ACCEPT_FIFO_UNLOCK ();
+handle:
- VCL_SESSION_LOCK ();
-
- rv = vppcom_session_at_index (client_session_index, &client_session);
- if (PREDICT_FALSE (rv))
- {
- rv = VPPCOM_ECONNABORTED;
- clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: client sid %u "
- "lookup failed! returning %d (%s)", getpid (),
- listen_vpp_handle, listen_session_index,
- client_session_index, rv, vppcom_retval_str (rv));
- goto cleanup;
- }
+ client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg);
+ listen_session = vcl_session_get (wrk, listen_session_index);
+ client_session = vcl_session_get (wrk, client_session_index);
if (flags & O_NONBLOCK)
VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
- else
- VCL_SESS_ATTR_CLR (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
+ listen_vpp_handle = listen_session->vpp_handle;
VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: Got a client request! "
"vpp handle 0x%llx, sid %u, flags %d, is_nonblocking %u",
- getpid (), listen_vpp_handle, listen_session_index,
+ getpid (), listen_vpp_handle, listen_session_handle,
client_session->vpp_handle, client_session_index,
flags, VCL_SESS_ATTR_TEST (client_session->attr,
VCL_SESS_ATTR_NONBLOCK));
ep->is_ip4 = client_session->transport.is_ip4;
ep->port = client_session->transport.rmt_port;
if (client_session->transport.is_ip4)
- clib_memcpy (ep->ip, &client_session->transport.rmt_ip.ip4,
- sizeof (ip4_address_t));
+ clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
+ sizeof (ip4_address_t));
else
- clib_memcpy (ep->ip, &client_session->transport.rmt_ip.ip6,
- sizeof (ip6_address_t));
+ clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
+ sizeof (ip6_address_t));
}
- vppcom_send_accept_session_reply (client_session->vpp_handle,
- client_session->client_context,
- 0 /* retval OK */ );
+ if (accepted_msg.server_event_queue_address)
+ vpp_evt_q = uword_to_pointer (accepted_msg.vpp_event_queue_address,
+ svm_msg_q_t *);
+ else
+ vpp_evt_q = client_session->vpp_evt_q;
- VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: accepted vpp handle 0x%llx,"
- " sid %u connection from peer %s address %U port %u to local %s address"
- " %U port %u",
- getpid (), listen_vpp_handle,
- listen_session_index, client_session->vpp_handle,
+ vcl_send_session_accepted_reply (vpp_evt_q, client_session->client_context,
+ client_session->vpp_handle, 0);
+
+ VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: accepted vpp handle 0x%llx, "
+ "sid %u connection from peer %s address %U port %u to local %s "
+ "address %U port %u", getpid (), listen_vpp_handle,
+ listen_session_handle, client_session->vpp_handle,
client_session_index,
client_session->transport.is_ip4 ? "IPv4" : "IPv6",
format_ip46_address, &client_session->transport.rmt_ip,
- client_session->transport.is_ip4 ?
- IP46_TYPE_IP4 : IP46_TYPE_IP6,
+ client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
clib_net_to_host_u16 (client_session->transport.rmt_port),
client_session->transport.is_ip4 ? "IPv4" : "IPv6",
format_ip46_address, &client_session->transport.lcl_ip,
- client_session->transport.is_ip4 ?
- IP46_TYPE_IP4 : IP46_TYPE_IP6,
+ client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
clib_net_to_host_u16 (client_session->transport.lcl_port));
vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
client_session_index);
- VCL_SESSION_UNLOCK ();
- rv = (int) client_session_index;
- 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 */
- VCL_IO_SESSIONS_LOCK ();
- u32 *active_session_index;
- pool_get (vcm->session_io_thread.active_session_indexes,
- active_session_index);
- *active_session_index = client_session_index;
- VCL_IO_SESSIONS_UNLOCK ();
- }
-cleanup:
- vce_unregister_handler (&vcm->event_thread, reg);
- pthread_mutex_unlock (®->handler_lock);
-
-done:
- return rv;
+ return vcl_session_handle (client_session);
}
int
-vppcom_session_connect (uint32_t session_index, vppcom_endpt_t * server_ep)
+vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
{
+ vcl_worker_t *wrk = vcl_worker_get_current ();
vcl_session_t *session = 0;
- u64 vpp_handle = 0;
- int rv, retval = VPPCOM_OK;
+ u32 session_index;
+ int rv;
- VCL_SESSION_LOCK_AND_GET (session_index, &session);
+ session = vcl_session_get_w_handle (wrk, session_handle);
+ if (!session)
+ return VPPCOM_EBADFD;
+ session_index = session->session_index;
if (PREDICT_FALSE (session->is_vep))
{
- VCL_SESSION_UNLOCK ();
clib_warning ("VCL<%d>: ERROR: sid %u: cannot "
- "connect on an epoll session!", getpid (), session_index);
- rv = VPPCOM_EBADFD;
- goto done;
+ "connect on an epoll session!", getpid (),
+ session_handle);
+ return VPPCOM_EBADFD;
}
if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
{
VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: session already "
"connected to %s %U port %d proto %s, state 0x%x (%s)",
- getpid (), session->vpp_handle, session_index,
+ getpid (), session->vpp_handle, session_handle,
session->transport.is_ip4 ? "IPv4" : "IPv6",
format_ip46_address,
&session->transport.rmt_ip, session->transport.is_ip4 ?
clib_net_to_host_u16 (session->transport.rmt_port),
session->session_type ? "UDP" : "TCP", session->session_state,
vppcom_session_state_str (session->session_state));
-
- VCL_SESSION_UNLOCK ();
- goto done;
+ return VPPCOM_OK;
}
session->transport.is_ip4 = server_ep->is_ip4;
if (session->transport.is_ip4)
- clib_memcpy (&session->transport.rmt_ip.ip4, server_ep->ip,
- sizeof (ip4_address_t));
+ clib_memcpy_fast (&session->transport.rmt_ip.ip4, server_ep->ip,
+ sizeof (ip4_address_t));
else
- clib_memcpy (&session->transport.rmt_ip.ip6, server_ep->ip,
- sizeof (ip6_address_t));
+ clib_memcpy_fast (&session->transport.rmt_ip.ip6, server_ep->ip,
+ sizeof (ip6_address_t));
session->transport.rmt_port = server_ep->port;
VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: connecting to server %s %U "
"port %d proto %s",
- getpid (), session->vpp_handle, session_index,
+ getpid (), session->vpp_handle, session_handle,
session->transport.is_ip4 ? "IPv4" : "IPv6",
format_ip46_address,
&session->transport.rmt_ip, session->transport.is_ip4 ?
clib_net_to_host_u16 (session->transport.rmt_port),
session->session_type ? "UDP" : "TCP");
- vppcom_send_connect_sock (session, session_index);
- VCL_SESSION_UNLOCK ();
-
- retval =
- vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
- vcm->cfg.session_timeout);
+ /*
+ * Send connect request and wait for reply from vpp
+ */
+ vppcom_send_connect_sock (session);
+ rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
+ vcm->cfg.session_timeout);
- VCL_SESSION_LOCK_AND_GET (session_index, &session);
- vpp_handle = session->vpp_handle;
- VCL_SESSION_UNLOCK ();
+ session = vcl_session_get (wrk, session_index);
-done:
- if (PREDICT_FALSE (retval))
+ if (PREDICT_FALSE (rv))
{
- rv = retval;
if (VPPCOM_DEBUG > 0)
{
if (session)
clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: connect "
- "failed! returning %d (%s)", getpid (), vpp_handle,
- session_index, rv, vppcom_retval_str (rv));
+ "failed! returning %d (%s)", getpid (),
+ session->vpp_handle, session_handle, rv,
+ vppcom_retval_str (rv));
else
clib_warning ("VCL<%d>: no session for sid %u: connect failed! "
"returning %d (%s)", getpid (),
- session_index, rv, vppcom_retval_str (rv));
+ session_handle, rv, vppcom_retval_str (rv));
}
}
else
VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: connected!",
- getpid (), vpp_handle, session_index);
+ getpid (), session->vpp_handle, session_handle);
return rv;
}
+static u8
+vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
+{
+ if (!is_ct)
+ return (e->event_type == FIFO_EVENT_APP_RX
+ && e->fifo->client_session_index == sid);
+ else
+ return (e->event_type == SESSION_IO_EVT_CT_TX);
+}
+
+static inline u8
+vcl_session_is_readable (vcl_session_t * s)
+{
+ return ((s->session_state & STATE_OPEN)
+ || (s->session_state == STATE_LISTEN
+ && s->session_type == VPPCOM_PROTO_UDP));
+}
+
static inline int
-vppcom_session_read_internal (uint32_t session_index, void *buf, int n,
+vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
u8 peek)
{
- vcl_session_t *session = 0;
+ vcl_worker_t *wrk = vcl_worker_get_current ();
+ int n_read = 0, rv, is_nonblocking;
+ vcl_session_t *s = 0;
svm_fifo_t *rx_fifo;
- int n_read = 0;
- int rv;
- int is_nonblocking;
-
- u64 vpp_handle;
- u32 poll_et;
- session_state_t state;
+ svm_msg_q_msg_t msg;
+ session_event_t *e;
+ svm_msg_q_t *mq;
+ u8 is_ct;
- ASSERT (buf);
+ if (PREDICT_FALSE (!buf))
+ return VPPCOM_EINVAL;
- VCL_SESSION_LOCK_AND_GET (session_index, &session);
+ s = vcl_session_get_w_handle (wrk, session_handle);
+ if (PREDICT_FALSE (!s || s->is_vep))
+ return VPPCOM_EBADFD;
- is_nonblocking = VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK);
- rx_fifo = session->rx_fifo;
- state = session->session_state;
- vpp_handle = session->vpp_handle;
-
- if (PREDICT_FALSE (session->is_vep))
+ if (PREDICT_FALSE (!vcl_session_is_readable (s)))
{
- VCL_SESSION_UNLOCK ();
- clib_warning ("VCL<%d>: ERROR: sid %u: cannot "
- "read from an epoll session!", getpid (), session_index);
- rv = VPPCOM_EBADFD;
- goto done;
- }
-
- if (PREDICT_FALSE (!(state & (SERVER_STATE_OPEN | CLIENT_STATE_OPEN))))
- {
- VCL_SESSION_UNLOCK ();
+ session_state_t state = s->session_state;
rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: %s session is not open! "
"state 0x%x (%s), returning %d (%s)",
- getpid (), vpp_handle, session_index, state,
+ getpid (), s->vpp_handle, session_handle, state,
vppcom_session_state_str (state), rv, vppcom_retval_str (rv));
- goto done;
+ return rv;
}
- VCL_SESSION_UNLOCK ();
-
- do
- {
- if (peek)
- n_read = svm_fifo_peek (rx_fifo, 0, n, buf);
- else
- n_read = svm_fifo_dequeue_nowait (rx_fifo, n, buf);
- }
- while (!is_nonblocking && (n_read <= 0));
+ is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
+ is_ct = vcl_session_is_ct (s);
+ mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
+ rx_fifo = s->rx_fifo;
+ s->has_rx_evt = 0;
- if (n_read <= 0)
+ if (svm_fifo_is_empty (rx_fifo))
{
- VCL_SESSION_LOCK_AND_GET (session_index, &session);
-
- poll_et = (((EPOLLET | EPOLLIN) & session->vep.ev.events) ==
- (EPOLLET | EPOLLIN));
- if (poll_et)
- session->vep.et_mask |= EPOLLIN;
-
- if (state & STATE_CLOSE_ON_EMPTY)
+ if (is_nonblocking)
{
- rv = VPPCOM_ECONNRESET;
+ svm_fifo_unset_event (rx_fifo);
+ return VPPCOM_EWOULDBLOCK;
+ }
+ while (svm_fifo_is_empty (rx_fifo))
+ {
+ svm_fifo_unset_event (rx_fifo);
+ svm_msg_q_lock (mq);
+ if (svm_msg_q_is_empty (mq))
+ svm_msg_q_wait (mq);
- VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: Empty fifo with "
- "session state 0x%x (%s)! Setting state to 0x%x (%s), "
- "returning %d (%s)",
- getpid (), session->vpp_handle, session_index,
- state, vppcom_session_state_str (state),
- STATE_DISCONNECT,
- vppcom_session_state_str (STATE_DISCONNECT), rv,
- vppcom_retval_str (rv));
+ svm_msg_q_sub_w_lock (mq, &msg);
+ e = svm_msg_q_msg_data (mq, &msg);
+ svm_msg_q_unlock (mq);
+ if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
+ {
+ vcl_handle_mq_event (wrk, e);
+ svm_msg_q_free_msg (mq, &msg);
+ continue;
+ }
+ svm_msg_q_free_msg (mq, &msg);
- session->session_state = STATE_DISCONNECT;
+ if (PREDICT_FALSE (s->session_state == STATE_CLOSE_ON_EMPTY))
+ return 0;
}
- else
- rv = VPPCOM_EAGAIN;
-
- VCL_SESSION_UNLOCK ();
}
+
+ if (s->is_dgram)
+ n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
else
- rv = n_read;
+ n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
+
+ if (svm_fifo_is_empty (rx_fifo))
+ svm_fifo_unset_event (rx_fifo);
- if (VPPCOM_DEBUG > 2)
+ if (is_ct && svm_fifo_want_tx_evt (rx_fifo))
{
- if (rv > 0)
- clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: read %d bytes "
- "from (%p)", getpid (), vpp_handle,
- session_index, n_read, rx_fifo);
- else
- clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: nothing read! "
- "returning %d (%s)", getpid (), vpp_handle,
- session_index, rv, vppcom_retval_str (rv));
+ svm_fifo_set_want_tx_evt (s->rx_fifo, 0);
+ app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo, SESSION_IO_EVT_CT_RX,
+ SVM_Q_WAIT);
}
-done:
- return rv;
+
+ VDBG (2, "VCL<%d>: vpp handle 0x%llx, sid %u: read %d bytes from (%p)",
+ getpid (), s->vpp_handle, session_handle, n_read, rx_fifo);
+
+ return n_read;
}
int
-vppcom_session_read (uint32_t session_index, void *buf, size_t n)
+vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
{
- return (vppcom_session_read_internal (session_index, buf, n, 0));
+ return (vppcom_session_read_internal (session_handle, buf, n, 0));
}
static int
-vppcom_session_peek (uint32_t session_index, void *buf, int n)
+vppcom_session_peek (uint32_t session_handle, void *buf, int n)
{
- return (vppcom_session_read_internal (session_index, buf, n, 1));
+ return (vppcom_session_read_internal (session_handle, buf, n, 1));
}
-static inline int
-vppcom_session_read_ready (vcl_session_t * session, u32 session_index)
+int
+vppcom_session_read_segments (uint32_t session_handle,
+ vppcom_data_segments_t ds)
{
- int ready = 0;
- u32 poll_et;
- int rv;
- session_state_t state = session->session_state;
- u64 vpp_handle = session->vpp_handle;
+ vcl_worker_t *wrk = vcl_worker_get_current ();
+ int n_read = 0, rv, is_nonblocking;
+ vcl_session_t *s = 0;
+ svm_fifo_t *rx_fifo;
+ svm_msg_q_msg_t msg;
+ session_event_t *e;
+ svm_msg_q_t *mq;
+ u8 is_ct;
- /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
- if (PREDICT_FALSE (session->is_vep))
- {
- clib_warning ("VCL<%d>: ERROR: sid %u: cannot read from an "
- "epoll session!", getpid (), session_index);
- rv = VPPCOM_EBADFD;
- goto done;
- }
+ s = vcl_session_get_w_handle (wrk, session_handle);
+ if (PREDICT_FALSE (!s || s->is_vep))
+ return VPPCOM_EBADFD;
- if (session->session_state & STATE_LISTEN)
+ if (PREDICT_FALSE (!vcl_session_is_readable (s)))
{
- VCL_ACCEPT_FIFO_LOCK ();
- ready = clib_fifo_elts (vcm->client_session_index_fifo);
- VCL_ACCEPT_FIFO_UNLOCK ();
+ session_state_t state = s->session_state;
+ rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
+ return rv;
}
- else
+
+ is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
+ is_ct = vcl_session_is_ct (s);
+ mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
+ rx_fifo = s->rx_fifo;
+ s->has_rx_evt = 0;
+
+ if (svm_fifo_is_empty (rx_fifo))
{
- if (!(state & (SERVER_STATE_OPEN | CLIENT_STATE_OPEN | STATE_LISTEN)))
+ if (is_nonblocking)
{
- rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET :
- VPPCOM_ENOTCONN);
-
- VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: session is not open!"
- " state 0x%x (%s), returning %d (%s)",
- getpid (), vpp_handle, session_index,
- state, vppcom_session_state_str (state),
- rv, vppcom_retval_str (rv));
- goto done;
+ svm_fifo_unset_event (rx_fifo);
+ return VPPCOM_EWOULDBLOCK;
}
+ while (svm_fifo_is_empty (rx_fifo))
+ {
+ svm_fifo_unset_event (rx_fifo);
+ svm_msg_q_lock (mq);
+ if (svm_msg_q_is_empty (mq))
+ svm_msg_q_wait (mq);
+
+ svm_msg_q_sub_w_lock (mq, &msg);
+ e = svm_msg_q_msg_data (mq, &msg);
+ svm_msg_q_unlock (mq);
+ if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
+ {
+ vcl_handle_mq_event (wrk, e);
+ svm_msg_q_free_msg (mq, &msg);
+ continue;
+ }
+ svm_msg_q_free_msg (mq, &msg);
- ready = svm_fifo_max_dequeue (session->rx_fifo);
+ if (PREDICT_FALSE (s->session_state == STATE_CLOSE_ON_EMPTY))
+ return 0;
+ }
}
- if (ready == 0)
+ n_read = svm_fifo_segments (rx_fifo, (svm_fifo_segment_t *) ds);
+ svm_fifo_unset_event (rx_fifo);
+
+ if (is_ct && n_read + svm_fifo_max_dequeue (rx_fifo) == rx_fifo->nitems)
{
- poll_et =
- ((EPOLLET | EPOLLIN) & session->vep.ev.events) == (EPOLLET | EPOLLIN);
- if (poll_et)
- session->vep.et_mask |= EPOLLIN;
+ /* If the peer is not polling send notification */
+ if (!svm_fifo_has_event (s->rx_fifo))
+ app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo,
+ SESSION_IO_EVT_CT_RX, SVM_Q_WAIT);
+ }
- if (state & STATE_CLOSE_ON_EMPTY)
- {
- rv = VPPCOM_ECONNRESET;
+ return n_read;
+}
- VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: Empty fifo with "
- "session state 0x%x (%s)! Setting state to 0x%x (%s), "
- "returning %d (%s)",
- getpid (), session_index, vpp_handle,
- state, vppcom_session_state_str (state),
- STATE_DISCONNECT,
- vppcom_session_state_str (STATE_DISCONNECT), rv,
- vppcom_retval_str (rv));
- session->session_state = STATE_DISCONNECT;
- goto done;
- }
+void
+vppcom_session_free_segments (uint32_t session_handle,
+ vppcom_data_segments_t ds)
+{
+ vcl_worker_t *wrk = vcl_worker_get_current ();
+ vcl_session_t *s;
+
+ s = vcl_session_get_w_handle (wrk, session_handle);
+ if (PREDICT_FALSE (!s || s->is_vep))
+ return;
+
+ svm_fifo_segments_free (s->rx_fifo, (svm_fifo_segment_t *) ds);
+}
+
+static inline int
+vppcom_session_read_ready (vcl_session_t * session)
+{
+ /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
+ if (PREDICT_FALSE (session->is_vep))
+ {
+ clib_warning ("VCL<%d>: ERROR: sid %u: cannot read from an "
+ "epoll session!", getpid (), session->session_index);
+ return VPPCOM_EBADFD;
}
- rv = ready;
- if (vcm->app_event_queue->cursize &&
- !pthread_mutex_trylock (&vcm->app_event_queue->mutex))
+ if (PREDICT_FALSE (!(session->session_state & (STATE_OPEN | STATE_LISTEN))))
{
- u32 i, n_to_dequeue = vcm->app_event_queue->cursize;
- session_fifo_event_t e;
+ session_state_t state = session->session_state;
+ int rv;
- for (i = 0; i < n_to_dequeue; i++)
- svm_queue_sub_raw (vcm->app_event_queue, (u8 *) & e);
+ rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
- pthread_mutex_unlock (&vcm->app_event_queue->mutex);
+ VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: session is not open!"
+ " state 0x%x (%s), returning %d (%s)", getpid (),
+ session->vpp_handle, session->session_index, state,
+ vppcom_session_state_str (state), rv, vppcom_retval_str (rv));
+ return rv;
}
-done:
- return rv;
+
+ if (session->session_state & STATE_LISTEN)
+ return clib_fifo_elts (session->accept_evts_fifo);
+
+ return svm_fifo_max_dequeue (session->rx_fifo);
}
int
-vppcom_session_write (uint32_t session_index, void *buf, size_t n)
+vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
{
- vcl_session_t *session = 0;
- svm_fifo_t *tx_fifo = 0;
- svm_queue_t *q;
- session_fifo_event_t evt;
- session_state_t state;
+ u32 first_copy = clib_min (ds[0].len, max_bytes);
+ clib_memcpy_fast (buf, ds[0].data, first_copy);
+ if (first_copy < max_bytes)
+ {
+ clib_memcpy_fast (buf + first_copy, ds[1].data,
+ clib_min (ds[1].len, max_bytes - first_copy));
+ }
+ return 0;
+}
+
+static u8
+vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
+{
+ if (!is_ct)
+ return (e->event_type == FIFO_EVENT_APP_TX
+ && e->fifo->client_session_index == sid);
+ else
+ return (e->event_type == SESSION_IO_EVT_CT_RX);
+}
+
+int
+vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
+{
+ vcl_worker_t *wrk = vcl_worker_get_current ();
int rv, n_write, is_nonblocking;
- u32 poll_et;
- u64 vpp_handle;
+ vcl_session_t *s = 0;
+ svm_fifo_t *tx_fifo = 0;
+ session_evt_type_t et;
+ svm_msg_q_msg_t msg;
+ session_event_t *e;
+ svm_msg_q_t *mq;
+ u8 is_ct;
- ASSERT (buf);
+ if (PREDICT_FALSE (!buf))
+ return VPPCOM_EINVAL;
- VCL_SESSION_LOCK_AND_GET (session_index, &session);
+ s = vcl_session_get_w_handle (wrk, session_handle);
+ if (PREDICT_FALSE (!s))
+ return VPPCOM_EBADFD;
- tx_fifo = session->tx_fifo;
- is_nonblocking = VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK);
- vpp_handle = session->vpp_handle;
- state = session->session_state;
+ if (PREDICT_FALSE (s->is_vep))
+ {
+ clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
+ "cannot write to an epoll session!",
+ getpid (), s->vpp_handle, session_handle);
+
+ return VPPCOM_EBADFD;
+ }
+
+ if (PREDICT_FALSE (!(s->session_state & STATE_OPEN)))
+ {
+ session_state_t state = s->session_state;
+ rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
+ VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: session is not open! "
+ "state 0x%x (%s)", getpid (), s->vpp_handle, session_handle,
+ state, vppcom_session_state_str (state));
+ return rv;
+ }
+ tx_fifo = s->tx_fifo;
+ is_ct = vcl_session_is_ct (s);
+ is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
+ mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
+ if (svm_fifo_is_full (tx_fifo))
+ {
+ if (is_nonblocking)
+ {
+ return VPPCOM_EWOULDBLOCK;
+ }
+ while (svm_fifo_is_full (tx_fifo))
+ {
+ svm_fifo_set_want_tx_evt (tx_fifo, 1);
+ svm_msg_q_lock (mq);
+ if (svm_msg_q_is_empty (mq))
+ svm_msg_q_wait (mq);
+
+ svm_msg_q_sub_w_lock (mq, &msg);
+ e = svm_msg_q_msg_data (mq, &msg);
+ svm_msg_q_unlock (mq);
+
+ if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
+ vcl_handle_mq_event (wrk, e);
+ svm_msg_q_free_msg (mq, &msg);
+ }
+ }
+
+ ASSERT (FIFO_EVENT_APP_TX + 1 == SESSION_IO_EVT_CT_TX);
+ et = FIFO_EVENT_APP_TX + vcl_session_is_ct (s);
+ if (s->is_dgram)
+ n_write = app_send_dgram_raw (tx_fifo, &s->transport,
+ s->vpp_evt_q, buf, n, et, SVM_Q_WAIT);
+ else
+ n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
+ SVM_Q_WAIT);
+
+ ASSERT (n_write > 0);
+
+ VDBG (2, "VCL<%d>: vpp handle 0x%llx, sid %u: wrote %d bytes", getpid (),
+ s->vpp_handle, session_handle, n_write);
+
+ return n_write;
+}
+
+static vcl_session_t *
+vcl_ct_session_get_from_fifo (vcl_worker_t * wrk, svm_fifo_t * f, u8 type)
+{
+ vcl_session_t *s;
+ s = vcl_session_get (wrk, f->client_session_index);
+ if (s)
+ {
+ /* rx fifo */
+ if (type == 0 && s->rx_fifo == f)
+ return s;
+ /* tx fifo */
+ if (type == 1 && s->tx_fifo == f)
+ return s;
+ }
+ s = vcl_session_get (wrk, f->master_session_index);
+ if (s)
+ {
+ if (type == 0 && s->rx_fifo == f)
+ return s;
+ if (type == 1 && s->tx_fifo == f)
+ return s;
+ }
+ return 0;
+}
+
+static inline int
+vppcom_session_write_ready (vcl_session_t * session)
+{
+ /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
if (PREDICT_FALSE (session->is_vep))
{
- VCL_SESSION_UNLOCK ();
clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
"cannot write to an epoll session!",
- getpid (), vpp_handle, session_index);
+ getpid (), session->vpp_handle, session->session_index);
+ return VPPCOM_EBADFD;
+ }
- rv = VPPCOM_EBADFD;
- goto done;
+ if (PREDICT_FALSE (session->session_state & STATE_LISTEN))
+ {
+ clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
+ "cannot write to a listen session!",
+ getpid (), session->vpp_handle, session->session_index);
+ return VPPCOM_EBADFD;
}
- if (!(session->session_state & (SERVER_STATE_OPEN | CLIENT_STATE_OPEN)))
+ if (PREDICT_FALSE (!(session->session_state & STATE_OPEN)))
{
- rv =
- ((session->session_state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET :
- VPPCOM_ENOTCONN);
+ session_state_t state = session->session_state;
+ int rv;
- VCL_SESSION_UNLOCK ();
- VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: session is not open! "
- "state 0x%x (%s)",
- getpid (), vpp_handle, session_index,
- state, vppcom_session_state_str (state));
- goto done;
+ rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
+ clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
+ "session is not open! state 0x%x (%s), "
+ "returning %d (%s)", getpid (), session->vpp_handle,
+ session->session_index,
+ state, vppcom_session_state_str (state),
+ rv, vppcom_retval_str (rv));
+ return rv;
}
- VCL_SESSION_UNLOCK ();
+ VDBG (3, "VCL<%d>: vpp handle 0x%llx, sid %u: peek %s (%p), ready = %d",
+ getpid (), session->vpp_handle, session->session_index,
+ session->tx_fifo, svm_fifo_max_enqueue (session->tx_fifo));
- do
+ return svm_fifo_max_enqueue (session->tx_fifo);
+}
+
+static inline int
+vcl_mq_dequeue_batch (vcl_worker_t * wrk, svm_msg_q_t * mq)
+{
+ svm_msg_q_msg_t *msg;
+ u32 n_msgs;
+ int i;
+
+ n_msgs = svm_msg_q_size (mq);
+ for (i = 0; i < n_msgs; i++)
+ {
+ vec_add2 (wrk->mq_msg_vector, msg, 1);
+ svm_msg_q_sub_w_lock (mq, msg);
+ }
+ return n_msgs;
+}
+
+#define vcl_fifo_rx_evt_valid_or_break(_fifo) \
+if (PREDICT_FALSE (svm_fifo_is_empty (_fifo))) \
+ { \
+ svm_fifo_unset_event (_fifo); \
+ if (svm_fifo_is_empty (_fifo)) \
+ break; \
+ } \
+
+static void
+vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
+ unsigned long n_bits, unsigned long *read_map,
+ unsigned long *write_map,
+ unsigned long *except_map, u32 * bits_set)
+{
+ session_disconnected_msg_t *disconnected_msg;
+ session_connected_msg_t *connected_msg;
+ session_accepted_msg_t *accepted_msg;
+ vcl_session_msg_t *vcl_msg;
+ vcl_session_t *session;
+ u64 handle;
+ u32 sid;
+
+ switch (e->event_type)
{
- n_write = svm_fifo_enqueue_nowait (tx_fifo, n, (void *) buf);
+ case FIFO_EVENT_APP_RX:
+ vcl_fifo_rx_evt_valid_or_break (e->fifo);
+ sid = e->fifo->client_session_index;
+ session = vcl_session_get (wrk, sid);
+ if (!session)
+ break;
+ if (sid < n_bits && read_map)
+ {
+ clib_bitmap_set_no_check (read_map, sid, 1);
+ *bits_set += 1;
+ }
+ break;
+ case FIFO_EVENT_APP_TX:
+ sid = e->fifo->client_session_index;
+ session = vcl_session_get (wrk, sid);
+ if (!session)
+ break;
+ if (sid < n_bits && write_map)
+ {
+ clib_bitmap_set_no_check (write_map, sid, 1);
+ *bits_set += 1;
+ }
+ break;
+ case SESSION_IO_EVT_CT_TX:
+ vcl_fifo_rx_evt_valid_or_break (e->fifo);
+ session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 0);
+ if (!session)
+ break;
+ sid = session->session_index;
+ if (sid < n_bits && read_map)
+ {
+ clib_bitmap_set_no_check (read_map, sid, 1);
+ *bits_set += 1;
+ }
+ break;
+ case SESSION_IO_EVT_CT_RX:
+ session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 1);
+ if (!session)
+ break;
+ sid = session->session_index;
+ if (sid < n_bits && write_map)
+ {
+ clib_bitmap_set_no_check (write_map, sid, 1);
+ *bits_set += 1;
+ }
+ break;
+ case SESSION_CTRL_EVT_ACCEPTED:
+ accepted_msg = (session_accepted_msg_t *) e->data;
+ handle = accepted_msg->listener_handle;
+ session = vcl_session_table_lookup_listener (wrk, handle);
+ if (!session)
+ {
+ clib_warning ("VCL<%d>: ERROR: couldn't find listen session:"
+ "listener handle %llx", getpid (), handle);
+ break;
+ }
+
+ clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
+ vcl_msg->accepted_msg = *accepted_msg;
+ sid = session->session_index;
+ if (sid < n_bits && read_map)
+ {
+ clib_bitmap_set_no_check (read_map, sid, 1);
+ *bits_set += 1;
+ }
+ break;
+ case SESSION_CTRL_EVT_CONNECTED:
+ connected_msg = (session_connected_msg_t *) e->data;
+ vcl_session_connected_handler (wrk, connected_msg);
+ break;
+ case SESSION_CTRL_EVT_DISCONNECTED:
+ disconnected_msg = (session_disconnected_msg_t *) e->data;
+ sid = vcl_session_index_from_vpp_handle (wrk, disconnected_msg->handle);
+ if (sid < n_bits && except_map)
+ {
+ clib_bitmap_set_no_check (except_map, sid, 1);
+ *bits_set += 1;
+ }
+ break;
+ case SESSION_CTRL_EVT_RESET:
+ sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
+ if (sid < n_bits && except_map)
+ {
+ clib_bitmap_set_no_check (except_map, sid, 1);
+ *bits_set += 1;
+ }
+ break;
+ default:
+ clib_warning ("unhandled: %u", e->event_type);
+ break;
}
- while (!is_nonblocking && (n_write <= 0));
-
- /* 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 */
- evt.fifo = tx_fifo;
- evt.event_type = FIFO_EVENT_APP_TX;
+}
- VCL_SESSION_LOCK_AND_GET (session_index, &session);
- q = session->vpp_evt_q;
- ASSERT (q);
- svm_queue_add (q, (u8 *) & evt, 0 /* do wait for mutex */ );
- VCL_SESSION_UNLOCK ();
- VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: added FIFO_EVENT_APP_TX "
- "to vpp_event_q %p, n_write %d", getpid (),
- vpp_handle, session_index, q, n_write);
- }
+static int
+vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
+ unsigned long n_bits, unsigned long *read_map,
+ unsigned long *write_map, unsigned long *except_map,
+ double time_to_wait, u32 * bits_set)
+{
+ svm_msg_q_msg_t *msg;
+ session_event_t *e;
+ u32 i;
- if (n_write <= 0)
+ svm_msg_q_lock (mq);
+ if (svm_msg_q_is_empty (mq))
{
- VCL_SESSION_LOCK_AND_GET (session_index, &session);
-
- poll_et = (((EPOLLET | EPOLLOUT) & session->vep.ev.events) ==
- (EPOLLET | EPOLLOUT));
- if (poll_et)
- session->vep.et_mask |= EPOLLOUT;
-
- if (session->session_state & STATE_CLOSE_ON_EMPTY)
+ if (*bits_set)
{
- rv = VPPCOM_ECONNRESET;
-
- VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: Empty fifo with "
- "session state 0x%x (%s)! Setting state to 0x%x (%s), "
- "returning %d (%s)",
- getpid (), session->vpp_handle, session_index,
- session->session_state,
- vppcom_session_state_str (session->session_state),
- STATE_DISCONNECT,
- vppcom_session_state_str (STATE_DISCONNECT), rv,
- vppcom_retval_str (rv));
+ svm_msg_q_unlock (mq);
+ return 0;
+ }
- session->session_state = STATE_DISCONNECT;
+ if (!time_to_wait)
+ {
+ svm_msg_q_unlock (mq);
+ return 0;
+ }
+ else if (time_to_wait < 0)
+ {
+ svm_msg_q_wait (mq);
}
else
- rv = VPPCOM_EAGAIN;
-
- VCL_SESSION_UNLOCK ();
+ {
+ if (svm_msg_q_timedwait (mq, time_to_wait))
+ {
+ svm_msg_q_unlock (mq);
+ return 0;
+ }
+ }
}
- else
- rv = n_write;
+ vcl_mq_dequeue_batch (wrk, mq);
+ svm_msg_q_unlock (mq);
- if (VPPCOM_DEBUG > 2)
+ for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
{
- if (n_write <= 0)
- clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: "
- "FIFO-FULL (%p)", getpid (), vpp_handle,
- session_index, tx_fifo);
- else
- clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: "
- "wrote %d bytes tx-fifo: (%p)", getpid (),
- vpp_handle, session_index, n_write, tx_fifo);
+ msg = vec_elt_at_index (wrk->mq_msg_vector, i);
+ e = svm_msg_q_msg_data (mq, msg);
+ vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
+ except_map, bits_set);
+ svm_msg_q_free_msg (mq, msg);
}
-done:
- return rv;
+ vec_reset_length (wrk->mq_msg_vector);
+ return *bits_set;
}
-static inline int
-vppcom_session_write_ready (vcl_session_t * session, u32 session_index)
+static int
+vppcom_select_condvar (vcl_worker_t * wrk, unsigned long n_bits,
+ unsigned long *read_map, unsigned long *write_map,
+ unsigned long *except_map, double time_to_wait,
+ u32 * bits_set)
{
- int ready;
- u32 poll_et;
- int rv;
+ double total_wait = 0, wait_slice;
+ vcl_cut_through_registration_t *cr;
- ASSERT (session);
-
- /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
- if (PREDICT_FALSE (session->is_vep))
+ time_to_wait = (time_to_wait == -1) ? 10e9 : time_to_wait;
+ wait_slice = wrk->cut_through_registrations ? 10e-6 : time_to_wait;
+ do
{
- clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
- "cannot write to an epoll session!",
- getpid (), session->vpp_handle, session_index);
- rv = VPPCOM_EBADFD;
- goto done;
- }
+ vcl_ct_registration_lock (wrk);
+ /* *INDENT-OFF* */
+ pool_foreach (cr, wrk->cut_through_registrations, ({
+ vcl_select_handle_mq (wrk, cr->mq, n_bits, read_map, write_map, except_map,
+ 0, bits_set);
+ }));
+ /* *INDENT-ON* */
+ vcl_ct_registration_unlock (wrk);
- if (PREDICT_FALSE (session->session_state & STATE_LISTEN))
- {
- clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
- "cannot write to a listen session!",
- getpid (), session->vpp_handle, session_index);
- rv = VPPCOM_EBADFD;
- goto done;
+ vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
+ write_map, except_map, time_to_wait, bits_set);
+ total_wait += wait_slice;
+ if (*bits_set)
+ return *bits_set;
}
+ while (total_wait < time_to_wait);
- if (!(session->session_state & (SERVER_STATE_OPEN | CLIENT_STATE_OPEN)))
- {
- session_state_t state = session->session_state;
+ return 0;
+}
- rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
+static int
+vppcom_select_eventfd (vcl_worker_t * wrk, unsigned long n_bits,
+ unsigned long *read_map, unsigned long *write_map,
+ unsigned long *except_map, double time_to_wait,
+ u32 * bits_set)
+{
+ vcl_mq_evt_conn_t *mqc;
+ int __clib_unused n_read;
+ int n_mq_evts, i;
+ u64 buf;
- clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
- "session is not open! state 0x%x (%s), "
- "returning %d (%s)", getpid (), session->vpp_handle,
- session_index,
- state, vppcom_session_state_str (state),
- rv, vppcom_retval_str (rv));
- goto done;
+ vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
+ n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
+ vec_len (wrk->mq_events), time_to_wait);
+ for (i = 0; i < n_mq_evts; i++)
+ {
+ mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
+ n_read = read (mqc->mq_fd, &buf, sizeof (buf));
+ vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
+ except_map, 0, bits_set);
}
- ready = svm_fifo_max_enqueue (session->tx_fifo);
-
- VDBG (3, "VCL<%d>: vpp handle 0x%llx, sid %u: peek %s (%p), ready = %d",
- getpid (), session->vpp_handle, session_index, session->tx_fifo,
- ready);
-
- if (ready == 0)
- {
- poll_et = (((EPOLLET | EPOLLOUT) & session->vep.ev.events) ==
- (EPOLLET | EPOLLOUT));
- if (poll_et)
- session->vep.et_mask |= EPOLLOUT;
-
- if (session->session_state & STATE_CLOSE_ON_EMPTY)
- {
- rv = VPPCOM_ECONNRESET;
-
- VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: Empty fifo with "
- "session state 0x%x (%s)! Setting state to 0x%x (%s), "
- "returning %d (%s)", getpid (),
- session->vpp_handle, session_index,
- session->session_state,
- vppcom_session_state_str (session->session_state),
- STATE_DISCONNECT,
- vppcom_session_state_str (STATE_DISCONNECT), rv,
- vppcom_retval_str (rv));
- session->session_state = STATE_DISCONNECT;
- goto done;
- }
- }
- rv = ready;
-done:
- return rv;
+ return (n_mq_evts > 0 ? (int) *bits_set : 0);
}
int
unsigned long *write_map, unsigned long *except_map,
double time_to_wait)
{
- u32 session_index;
+ u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
+ vcl_worker_t *wrk = vcl_worker_get_current ();
vcl_session_t *session = 0;
- int rv, bits_set = 0;
- f64 timeout = clib_time_now (&vcm->clib_time) + time_to_wait;
- u32 minbits = clib_max (n_bits, BITS (uword));
+ int rv, i;
ASSERT (sizeof (clib_bitmap_t) == sizeof (long int));
if (n_bits && read_map)
{
- clib_bitmap_validate (vcm->rd_bitmap, minbits);
- clib_memcpy (vcm->rd_bitmap, read_map,
- vec_len (vcm->rd_bitmap) * sizeof (clib_bitmap_t));
- memset (read_map, 0, vec_len (vcm->rd_bitmap) * sizeof (clib_bitmap_t));
+ clib_bitmap_validate (wrk->rd_bitmap, minbits);
+ clib_memcpy_fast (wrk->rd_bitmap, read_map,
+ vec_len (wrk->rd_bitmap) * sizeof (clib_bitmap_t));
+ memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (clib_bitmap_t));
}
if (n_bits && write_map)
{
- clib_bitmap_validate (vcm->wr_bitmap, minbits);
- clib_memcpy (vcm->wr_bitmap, write_map,
- vec_len (vcm->wr_bitmap) * sizeof (clib_bitmap_t));
+ clib_bitmap_validate (wrk->wr_bitmap, minbits);
+ clib_memcpy_fast (wrk->wr_bitmap, write_map,
+ vec_len (wrk->wr_bitmap) * sizeof (clib_bitmap_t));
memset (write_map, 0,
- vec_len (vcm->wr_bitmap) * sizeof (clib_bitmap_t));
+ vec_len (wrk->wr_bitmap) * sizeof (clib_bitmap_t));
}
if (n_bits && except_map)
{
- clib_bitmap_validate (vcm->ex_bitmap, minbits);
- clib_memcpy (vcm->ex_bitmap, except_map,
- vec_len (vcm->ex_bitmap) * sizeof (clib_bitmap_t));
+ clib_bitmap_validate (wrk->ex_bitmap, minbits);
+ clib_memcpy_fast (wrk->ex_bitmap, except_map,
+ vec_len (wrk->ex_bitmap) * sizeof (clib_bitmap_t));
memset (except_map, 0,
- vec_len (vcm->ex_bitmap) * sizeof (clib_bitmap_t));
- }
-
- do
- {
- /* *INDENT-OFF* */
- if (n_bits)
- {
- if (read_map)
- {
- clib_bitmap_foreach (session_index, vcm->rd_bitmap,
- ({
- VCL_SESSION_LOCK();
- rv = vppcom_session_at_index (session_index, &session);
- if (rv < 0)
- {
- VCL_SESSION_UNLOCK();
- VDBG (1, "VCL<%d>: session %d specified in read_map is"
- " closed.", getpid (),
- session_index);
- bits_set = VPPCOM_EBADFD;
- goto select_done;
- }
- if (session->session_state & STATE_LISTEN)
- {
- vce_event_handler_reg_t *reg = 0;
- vce_event_key_t evk;
-
- /* Check if handler already registered for this
- * event.
- * If not, register handler for connect_request event
- * on listen_session_index
- */
- evk.session_index = session_index;
- evk.eid = VCL_EVENT_CONNECT_REQ_ACCEPTED;
- reg = vce_get_event_handler (&vcm->event_thread, &evk);
- if (!reg)
- reg = vce_register_handler (&vcm->event_thread, &evk,
- vce_poll_wait_connect_request_handler_fn,
- 0 /* No callback args */);
- rv = vppcom_session_read_ready (session, session_index);
- if (rv > 0)
- {
- vce_unregister_handler (&vcm->event_thread, reg);
- }
- }
- else
- rv = vppcom_session_read_ready (session, session_index);
- VCL_SESSION_UNLOCK();
- if (except_map && vcm->ex_bitmap &&
- clib_bitmap_get (vcm->ex_bitmap, session_index) &&
- (rv < 0))
- {
- clib_bitmap_set_no_check (except_map, session_index, 1);
- bits_set++;
- }
- else if (rv > 0)
- {
- clib_bitmap_set_no_check (read_map, session_index, 1);
- bits_set++;
- }
- }));
- }
-
- if (write_map)
- {
- clib_bitmap_foreach (session_index, vcm->wr_bitmap,
- ({
- VCL_SESSION_LOCK();
- rv = vppcom_session_at_index (session_index, &session);
- if (rv < 0)
- {
- VCL_SESSION_UNLOCK();
- VDBG (0, "VCL<%d>: session %d specified in "
- "write_map is closed.", getpid (),
- session_index);
- bits_set = VPPCOM_EBADFD;
- goto select_done;
- }
-
- rv = vppcom_session_write_ready (session, session_index);
- VCL_SESSION_UNLOCK();
- if (write_map && (rv > 0))
- {
- clib_bitmap_set_no_check (write_map, session_index, 1);
- bits_set++;
- }
- }));
- }
-
- if (except_map)
- {
- clib_bitmap_foreach (session_index, vcm->ex_bitmap,
- ({
- VCL_SESSION_LOCK();
- rv = vppcom_session_at_index (session_index, &session);
- if (rv < 0)
- {
- VCL_SESSION_UNLOCK();
- VDBG (1, "VCL<%d>: session %d specified in except_map "
- "is closed.", getpid (),
- session_index);
- bits_set = VPPCOM_EBADFD;
- goto select_done;
- }
-
- rv = vppcom_session_read_ready (session, session_index);
- VCL_SESSION_UNLOCK();
- if (rv < 0)
- {
- clib_bitmap_set_no_check (except_map, session_index, 1);
- bits_set++;
- }
- }));
- }
- }
- /* *INDENT-ON* */
- }
- while ((time_to_wait == -1) || (clib_time_now (&vcm->clib_time) < timeout));
+ vec_len (wrk->ex_bitmap) * sizeof (clib_bitmap_t));
+ }
+
+ if (!n_bits)
+ return 0;
+
+ if (!write_map)
+ goto check_rd;
+
+ /* *INDENT-OFF* */
+ clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
+ if (!(session = vcl_session_get (wrk, sid)))
+ {
+ VDBG (0, "VCL<%d>: session %d specified in write_map is closed.",
+ getpid (), sid);
+ return VPPCOM_EBADFD;
+ }
+
+ rv = svm_fifo_is_full (session->tx_fifo);
+ if (!rv)
+ {
+ clib_bitmap_set_no_check (write_map, sid, 1);
+ bits_set++;
+ }
+ }));
+
+check_rd:
+ if (!read_map)
+ goto check_mq;
+
+ clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
+ if (!(session = vcl_session_get (wrk, sid)))
+ {
+ VDBG (0, "VCL<%d>: session %d specified in write_map is closed.",
+ getpid (), sid);
+ return VPPCOM_EBADFD;
+ }
+
+ rv = vppcom_session_read_ready (session);
+ if (rv)
+ {
+ clib_bitmap_set_no_check (read_map, sid, 1);
+ bits_set++;
+ }
+ }));
+ /* *INDENT-ON* */
+
+check_mq:
+
+ for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
+ {
+ vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
+ read_map, write_map, except_map, &bits_set);
+ }
+ vec_reset_length (wrk->unhandled_evts_vector);
+
+ if (vcm->cfg.use_mq_eventfd)
+ vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
+ time_to_wait, &bits_set);
+ else
+ vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
+ time_to_wait, &bits_set);
-select_done:
return (bits_set);
}
static inline void
-vep_verify_epoll_chain (u32 vep_idx)
+vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_idx)
{
vcl_session_t *session;
vppcom_epoll_t *vep;
- int rv;
u32 sid = vep_idx;
if (VPPCOM_DEBUG <= 1)
return;
/* Assumes caller has acquired spinlock: vcm->sessions_lockp */
- rv = vppcom_session_at_index (vep_idx, &session);
- if (PREDICT_FALSE (rv))
+ session = vcl_session_get (wrk, vep_idx);
+ if (PREDICT_FALSE (!session))
{
clib_warning ("VCL<%d>: ERROR: Invalid vep_idx (%u)!",
getpid (), vep_idx);
" wait_cont_idx = 0x%x (%u)\n"
"}\n", getpid (), vep_idx,
session->is_vep, session->is_vep_session,
- vep->next_sid, vep->next_sid,
+ vep->next_sh, vep->next_sh,
session->wait_cont_idx, session->wait_cont_idx);
- for (sid = vep->next_sid; sid != ~0; sid = vep->next_sid)
+ for (sid = vep->next_sh; sid != ~0; sid = vep->next_sh)
{
- rv = vppcom_session_at_index (sid, &session);
- if (PREDICT_FALSE (rv))
+ session = vcl_session_get (wrk, sid);
+ if (PREDICT_FALSE (!session))
{
clib_warning ("VCL<%d>: ERROR: Invalid sid (%u)!", getpid (), sid);
goto done;
goto done;
}
vep = &session->vep;
- if (PREDICT_FALSE (vep->vep_idx != vep_idx))
+ if (PREDICT_FALSE (vep->vep_sh != vep_idx))
clib_warning ("VCL<%d>: ERROR: session (%u) vep_idx (%u) != "
"vep_idx (%u)!", getpid (),
- sid, session->vep.vep_idx, vep_idx);
+ sid, session->vep.vep_sh, vep_idx);
if (session->is_vep_session)
{
clib_warning ("vep_idx[%u]: sid 0x%x (%u)\n"
" et_mask = 0x%x\n"
"}\n",
vep_idx, sid, sid,
- vep->next_sid, vep->next_sid,
- vep->prev_sid, vep->prev_sid,
- vep->vep_idx, vep->vep_idx,
+ vep->next_sh, vep->next_sh,
+ vep->prev_sh, vep->prev_sh,
+ vep->vep_sh, vep->vep_sh,
vep->ev.events, vep->ev.data.u64, vep->et_mask);
}
}
int
vppcom_epoll_create (void)
{
+ vcl_worker_t *wrk = vcl_worker_get_current ();
vcl_session_t *vep_session;
- u32 vep_idx;
- VCL_SESSION_LOCK ();
- pool_get (vcm->sessions, vep_session);
- memset (vep_session, 0, sizeof (*vep_session));
- vep_idx = vep_session - vcm->sessions;
+ vep_session = vcl_session_alloc (wrk);
vep_session->is_vep = 1;
- vep_session->vep.vep_idx = ~0;
- vep_session->vep.next_sid = ~0;
- vep_session->vep.prev_sid = ~0;
+ vep_session->vep.vep_sh = ~0;
+ vep_session->vep.next_sh = ~0;
+ vep_session->vep.prev_sh = ~0;
vep_session->wait_cont_idx = ~0;
vep_session->vpp_handle = ~0;
- vep_session->poll_reg = 0;
-
- vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_idx);
- VCL_SESSION_UNLOCK ();
+ vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_sh);
VDBG (0, "VCL<%d>: Created vep_idx %u / sid %u!",
- getpid (), vep_idx, vep_idx);
+ getpid (), vep_session->session_index, vep_session->session_index);
- return (vep_idx);
+ return vcl_session_handle (vep_session);
}
int
-vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index,
+vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
struct epoll_event *event)
{
+ vcl_worker_t *wrk = vcl_worker_get_current ();
vcl_session_t *vep_session;
vcl_session_t *session;
- int rv;
+ int rv = VPPCOM_OK;
- if (vep_idx == session_index)
+ if (vep_handle == session_handle)
{
clib_warning ("VCL<%d>: ERROR: vep_idx == session_index (%u)!",
- getpid (), vep_idx);
+ getpid (), vep_handle);
return VPPCOM_EINVAL;
}
- VCL_SESSION_LOCK ();
- rv = vppcom_session_at_index (vep_idx, &vep_session);
- if (PREDICT_FALSE (rv))
+ vep_session = vcl_session_get_w_handle (wrk, vep_handle);
+ if (PREDICT_FALSE (!vep_session))
{
- clib_warning ("VCL<%d>: ERROR: Invalid vep_idx (%u)!", vep_idx);
- goto done;
+ clib_warning ("VCL<%d>: ERROR: Invalid vep_idx (%u)!", vep_handle);
+ return VPPCOM_EBADFD;
}
if (PREDICT_FALSE (!vep_session->is_vep))
{
clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
- getpid (), vep_idx);
- rv = VPPCOM_EINVAL;
- goto done;
+ getpid (), vep_handle);
+ return VPPCOM_EINVAL;
}
- ASSERT (vep_session->vep.vep_idx == ~0);
- ASSERT (vep_session->vep.prev_sid == ~0);
+ ASSERT (vep_session->vep.vep_sh == ~0);
+ ASSERT (vep_session->vep.prev_sh == ~0);
- rv = vppcom_session_at_index (session_index, &session);
- if (PREDICT_FALSE (rv))
+ session = vcl_session_get_w_handle (wrk, session_handle);
+ if (PREDICT_FALSE (!session))
{
- VDBG (0, "VCL<%d>: ERROR: Invalid session_index (%u)!",
- getpid (), session_index);
- goto done;
+ VDBG (0, "VCL<%d>: ERROR: Invalid session_handle (%u)!",
+ getpid (), session_handle);
+ return VPPCOM_EBADFD;
}
if (PREDICT_FALSE (session->is_vep))
{
- clib_warning ("ERROR: session_index (%u) is a vep!", vep_idx);
- rv = VPPCOM_EINVAL;
- goto done;
+ clib_warning ("ERROR: session_handle (%u) is a vep!", vep_handle);
+ return VPPCOM_EINVAL;
}
switch (op)
{
clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_ADD: NULL pointer to "
"epoll_event structure!", getpid ());
- rv = VPPCOM_EINVAL;
- goto done;
+ return VPPCOM_EINVAL;
}
- if (vep_session->vep.next_sid != ~0)
+ if (vep_session->vep.next_sh != ~0)
{
vcl_session_t *next_session;
- rv = vppcom_session_at_index (vep_session->vep.next_sid,
- &next_session);
- if (PREDICT_FALSE (rv))
+ next_session = vcl_session_get_w_handle (wrk,
+ vep_session->vep.next_sh);
+ if (PREDICT_FALSE (!next_session))
{
clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_ADD: Invalid "
"vep.next_sid (%u) on vep_idx (%u)!",
- getpid (), vep_session->vep.next_sid, vep_idx);
- goto done;
+ getpid (), vep_session->vep.next_sh, vep_handle);
+ return VPPCOM_EBADFD;
}
- ASSERT (next_session->vep.prev_sid == vep_idx);
- next_session->vep.prev_sid = session_index;
+ ASSERT (next_session->vep.prev_sh == vep_handle);
+ next_session->vep.prev_sh = session_handle;
}
- session->vep.next_sid = vep_session->vep.next_sid;
- session->vep.prev_sid = vep_idx;
- session->vep.vep_idx = vep_idx;
+ session->vep.next_sh = vep_session->vep.next_sh;
+ session->vep.prev_sh = vep_handle;
+ session->vep.vep_sh = vep_handle;
session->vep.et_mask = VEP_DEFAULT_ET_MASK;
session->vep.ev = *event;
session->is_vep = 0;
session->is_vep_session = 1;
- vep_session->vep.next_sid = session_index;
-
- /* VCL Event Register handler */
- if (session->session_state & STATE_LISTEN)
- {
- /* Register handler for connect_request event on listen_session_index */
- vce_event_key_t evk;
- evk.session_index = session_index;
- evk.eid = VCL_EVENT_CONNECT_REQ_ACCEPTED;
- vep_session->poll_reg =
- vce_register_handler (&vcm->event_thread, &evk,
- vce_poll_wait_connect_request_handler_fn,
- 0 /* No callback args */ );
- }
- VDBG (1, "VCL<%d>: EPOLL_CTL_ADD: vep_idx %u, "
- "sid %u, events 0x%x, data 0x%llx!",
- getpid (), vep_idx, session_index,
+ vep_session->vep.next_sh = session_handle;
+
+ VDBG (1, "VCL<%d>: EPOLL_CTL_ADD: vep_idx %u, sid %u, events 0x%x, "
+ "data 0x%llx!", getpid (), vep_handle, session_handle,
event->events, event->data.u64);
vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
break;
else if (PREDICT_FALSE (!session->is_vep_session))
{
clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_MOD: "
- "not a vep session!", getpid (), session_index);
+ "not a vep session!", getpid (), session_handle);
rv = VPPCOM_EINVAL;
goto done;
}
- else if (PREDICT_FALSE (session->vep.vep_idx != vep_idx))
+ else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
{
clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_MOD: "
"vep_idx (%u) != vep_idx (%u)!",
- getpid (), session_index,
- session->vep.vep_idx, vep_idx);
+ getpid (), session_handle,
+ session->vep.vep_sh, vep_handle);
rv = VPPCOM_EINVAL;
goto done;
}
session->vep.et_mask = VEP_DEFAULT_ET_MASK;
session->vep.ev = *event;
VDBG (1, "VCL<%d>: EPOLL_CTL_MOD: vep_idx %u, sid %u, events 0x%x,"
- " data 0x%llx!", getpid (), vep_idx, session_index, event->events,
- event->data.u64);
+ " data 0x%llx!", getpid (), vep_handle, session_handle,
+ event->events, event->data.u64);
break;
case EPOLL_CTL_DEL:
if (PREDICT_FALSE (!session->is_vep_session))
{
clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_DEL: "
- "not a vep session!", getpid (), session_index);
+ "not a vep session!", getpid (), session_handle);
rv = VPPCOM_EINVAL;
goto done;
}
- else if (PREDICT_FALSE (session->vep.vep_idx != vep_idx))
+ else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
{
clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_DEL: "
"vep_idx (%u) != vep_idx (%u)!",
- getpid (), session_index,
- session->vep.vep_idx, vep_idx);
+ getpid (), session_handle,
+ session->vep.vep_sh, vep_handle);
rv = VPPCOM_EINVAL;
goto done;
}
- /* VCL Event Un-register handler */
- if ((session->session_state & STATE_LISTEN) && vep_session->poll_reg)
- {
- (void) vce_unregister_handler (&vcm->event_thread,
- vep_session->poll_reg);
- }
-
vep_session->wait_cont_idx =
- (vep_session->wait_cont_idx == session_index) ?
- session->vep.next_sid : vep_session->wait_cont_idx;
+ (vep_session->wait_cont_idx == session_handle) ?
+ session->vep.next_sh : vep_session->wait_cont_idx;
- if (session->vep.prev_sid == vep_idx)
- vep_session->vep.next_sid = session->vep.next_sid;
+ if (session->vep.prev_sh == vep_handle)
+ vep_session->vep.next_sh = session->vep.next_sh;
else
{
vcl_session_t *prev_session;
- rv = vppcom_session_at_index (session->vep.prev_sid, &prev_session);
- if (PREDICT_FALSE (rv))
+ prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
+ if (PREDICT_FALSE (!prev_session))
{
clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_DEL: Invalid "
"vep.prev_sid (%u) on sid (%u)!",
- getpid (), session->vep.prev_sid, session_index);
- goto done;
+ getpid (), session->vep.prev_sh, session_handle);
+ return VPPCOM_EBADFD;
}
- ASSERT (prev_session->vep.next_sid == session_index);
- prev_session->vep.next_sid = session->vep.next_sid;
+ ASSERT (prev_session->vep.next_sh == session_handle);
+ prev_session->vep.next_sh = session->vep.next_sh;
}
- if (session->vep.next_sid != ~0)
+ if (session->vep.next_sh != ~0)
{
vcl_session_t *next_session;
- rv = vppcom_session_at_index (session->vep.next_sid, &next_session);
- if (PREDICT_FALSE (rv))
+ next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
+ if (PREDICT_FALSE (!next_session))
{
clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_DEL: Invalid "
"vep.next_sid (%u) on sid (%u)!",
- getpid (), session->vep.next_sid, session_index);
- goto done;
+ getpid (), session->vep.next_sh, session_handle);
+ return VPPCOM_EBADFD;
}
- ASSERT (next_session->vep.prev_sid == session_index);
- next_session->vep.prev_sid = session->vep.prev_sid;
+ ASSERT (next_session->vep.prev_sh == session_handle);
+ next_session->vep.prev_sh = session->vep.prev_sh;
}
memset (&session->vep, 0, sizeof (session->vep));
- session->vep.next_sid = ~0;
- session->vep.prev_sid = ~0;
- session->vep.vep_idx = ~0;
+ session->vep.next_sh = ~0;
+ session->vep.prev_sh = ~0;
+ session->vep.vep_sh = ~0;
session->is_vep_session = 0;
VDBG (1, "VCL<%d>: EPOLL_CTL_DEL: vep_idx %u, sid %u!",
- getpid (), vep_idx, session_index);
- vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_idx);
+ getpid (), vep_handle, session_handle);
+ vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
break;
default:
rv = VPPCOM_EINVAL;
}
- vep_verify_epoll_chain (vep_idx);
+ vep_verify_epoll_chain (wrk, vep_handle);
done:
- VCL_SESSION_UNLOCK ();
return rv;
}
-int
-vppcom_epoll_wait (uint32_t vep_idx, struct epoll_event *events,
- int maxevents, double wait_for_time)
+static inline void
+vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
+ struct epoll_event *events, u32 * num_ev)
{
- vcl_session_t *vep_session;
- int rv;
- f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time;
- u32 keep_trying = 1;
- int num_ev = 0;
- u32 vep_next_sid, wait_cont_idx;
- u8 is_vep;
+ session_disconnected_msg_t *disconnected_msg;
+ session_connected_msg_t *connected_msg;
+ session_accepted_msg_t *accepted_msg;
+ u64 session_evt_data = ~0, handle;
+ u32 sid = ~0, session_events;
+ vcl_session_msg_t *vcl_msg;
+ vcl_session_t *session;
+ u8 add_event = 0;
+
+ switch (e->event_type)
+ {
+ case FIFO_EVENT_APP_RX:
+ ASSERT (e->fifo->client_thread_index == vcl_get_worker_index ());
+ vcl_fifo_rx_evt_valid_or_break (e->fifo);
+ sid = e->fifo->client_session_index;
+ session = vcl_session_get (wrk, sid);
+ session_events = session->vep.ev.events;
+ if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
+ break;
+ add_event = 1;
+ events[*num_ev].events |= EPOLLIN;
+ session_evt_data = session->vep.ev.data.u64;
+ session->has_rx_evt = 1;
+ break;
+ case FIFO_EVENT_APP_TX:
+ sid = e->fifo->client_session_index;
+ session = vcl_session_get (wrk, sid);
+ session_events = session->vep.ev.events;
+ if (!(EPOLLOUT & session_events))
+ break;
+ add_event = 1;
+ events[*num_ev].events |= EPOLLOUT;
+ session_evt_data = session->vep.ev.data.u64;
+ break;
+ case SESSION_IO_EVT_CT_TX:
+ vcl_fifo_rx_evt_valid_or_break (e->fifo);
+ session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 0);
+ sid = session->session_index;
+ session_events = session->vep.ev.events;
+ if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
+ break;
+ add_event = 1;
+ events[*num_ev].events |= EPOLLIN;
+ session_evt_data = session->vep.ev.data.u64;
+ session->has_rx_evt = 1;
+ break;
+ case SESSION_IO_EVT_CT_RX:
+ session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 1);
+ sid = session->session_index;
+ session_events = session->vep.ev.events;
+ if (!(EPOLLOUT & session_events))
+ break;
+ add_event = 1;
+ events[*num_ev].events |= EPOLLOUT;
+ session_evt_data = session->vep.ev.data.u64;
+ break;
+ case SESSION_CTRL_EVT_ACCEPTED:
+ accepted_msg = (session_accepted_msg_t *) e->data;
+ handle = accepted_msg->listener_handle;
+ session = vcl_session_table_lookup_listener (wrk, handle);
+ if (!session)
+ {
+ clib_warning ("VCL<%d>: ERROR: couldn't find listen session:"
+ "listener handle %llx", getpid (), handle);
+ break;
+ }
+
+ clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
+ vcl_msg->accepted_msg = *accepted_msg;
+ session_events = session->vep.ev.events;
+ if (!(EPOLLIN & session_events))
+ break;
+
+ add_event = 1;
+ events[*num_ev].events |= EPOLLIN;
+ session_evt_data = session->vep.ev.data.u64;
+ break;
+ case SESSION_CTRL_EVT_CONNECTED:
+ connected_msg = (session_connected_msg_t *) e->data;
+ vcl_session_connected_handler (wrk, connected_msg);
+ /* Generate EPOLLOUT because there's no connected event */
+ sid = vcl_session_index_from_vpp_handle (wrk, connected_msg->handle);
+ session = vcl_session_get (wrk, sid);
+ session_events = session->vep.ev.events;
+ if (EPOLLOUT & session_events)
+ {
+ add_event = 1;
+ events[*num_ev].events |= EPOLLOUT;
+ session_evt_data = session->vep.ev.data.u64;
+ }
+ break;
+ case SESSION_CTRL_EVT_DISCONNECTED:
+ disconnected_msg = (session_disconnected_msg_t *) e->data;
+ sid = vcl_session_index_from_vpp_handle (wrk, disconnected_msg->handle);
+ if (!(session = vcl_session_get (wrk, sid)))
+ break;
+ add_event = 1;
+ events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
+ session_evt_data = session->vep.ev.data.u64;
+ session_events = session->vep.ev.events;
+ break;
+ case SESSION_CTRL_EVT_RESET:
+ sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
+ if (!(session = vcl_session_get (wrk, sid)))
+ break;
+ add_event = 1;
+ events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
+ session_evt_data = session->vep.ev.data.u64;
+ session_events = session->vep.ev.events;
+ break;
+ default:
+ VDBG (0, "unhandled: %u", e->event_type);
+ break;
+ }
- if (PREDICT_FALSE (maxevents <= 0))
+ if (add_event)
{
- clib_warning ("VCL<%d>: ERROR: Invalid maxevents (%d)!",
- getpid (), maxevents);
- return VPPCOM_EINVAL;
+ events[*num_ev].data.u64 = session_evt_data;
+ if (EPOLLONESHOT & session_events)
+ {
+ session = vcl_session_get (wrk, sid);
+ session->vep.ev.events = 0;
+ }
+ *num_ev += 1;
}
- memset (events, 0, sizeof (*events) * maxevents);
+}
+
+static int
+vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
+ struct epoll_event *events, u32 maxevents,
+ double wait_for_time, u32 * num_ev)
+{
+ svm_msg_q_msg_t *msg;
+ session_event_t *e;
+ int i;
- VCL_SESSION_LOCK_AND_GET (vep_idx, &vep_session);
- vep_next_sid = vep_session->vep.next_sid;
- is_vep = vep_session->is_vep;
- wait_cont_idx = vep_session->wait_cont_idx;
- VCL_SESSION_UNLOCK ();
+ if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
+ goto handle_dequeued;
- if (PREDICT_FALSE (!is_vep))
+ svm_msg_q_lock (mq);
+ if (svm_msg_q_is_empty (mq))
{
- clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
- getpid (), vep_idx);
- rv = VPPCOM_EINVAL;
- goto done;
+ if (!wait_for_time)
+ {
+ svm_msg_q_unlock (mq);
+ return 0;
+ }
+ else if (wait_for_time < 0)
+ {
+ svm_msg_q_wait (mq);
+ }
+ else
+ {
+ if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
+ {
+ svm_msg_q_unlock (mq);
+ return 0;
+ }
+ }
}
- if (PREDICT_FALSE (vep_next_sid == ~0))
+ vcl_mq_dequeue_batch (wrk, mq);
+ svm_msg_q_unlock (mq);
+
+handle_dequeued:
+ for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
{
- VDBG (1, "VCL<%d>: WARNING: vep_idx (%u) is empty!",
- getpid (), vep_idx);
- goto done;
+ msg = vec_elt_at_index (wrk->mq_msg_vector, i);
+ e = svm_msg_q_msg_data (mq, msg);
+ if (*num_ev < maxevents)
+ vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
+ else
+ vec_add1 (wrk->unhandled_evts_vector, *e);
+ svm_msg_q_free_msg (mq, msg);
}
+ vec_reset_length (wrk->mq_msg_vector);
+
+ return *num_ev;
+}
+
+static int
+vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
+ int maxevents, u32 n_evts, double wait_for_time)
+{
+ vcl_cut_through_registration_t *cr;
+ double total_wait = 0, wait_slice;
+ int rv;
+
+ wait_for_time = (wait_for_time == -1) ? (double) 10e9 : wait_for_time;
+ wait_slice = wrk->cut_through_registrations ? 10e-6 : wait_for_time;
do
{
- u32 sid;
- u32 next_sid = ~0;
- vcl_session_t *session;
+ vcl_ct_registration_lock (wrk);
+ /* *INDENT-OFF* */
+ pool_foreach (cr, wrk->cut_through_registrations, ({
+ vcl_epoll_wait_handle_mq (wrk, cr->mq, events, maxevents, 0, &n_evts);
+ }));
+ /* *INDENT-ON* */
+ vcl_ct_registration_unlock (wrk);
- for (sid = (wait_cont_idx == ~0) ? vep_next_sid : wait_cont_idx;
- sid != ~0; sid = next_sid)
- {
- u32 session_events, et_mask, clear_et_mask, session_vep_idx;
- u8 add_event, is_vep_session;
- int ready;
- u64 session_ev_data;
+ rv = vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events,
+ maxevents, n_evts ? 0 : wait_slice,
+ &n_evts);
+ if (rv)
+ total_wait += wait_slice;
+ if (n_evts)
+ return n_evts;
+ }
+ while (total_wait < wait_for_time);
+ return n_evts;
+}
- VCL_SESSION_LOCK_AND_GET (sid, &session);
- next_sid = session->vep.next_sid;
- session_events = session->vep.ev.events;
- et_mask = session->vep.et_mask;
- is_vep = session->is_vep;
- is_vep_session = session->is_vep_session;
- session_vep_idx = session->vep.vep_idx;
- session_ev_data = session->vep.ev.data.u64;
+static int
+vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
+ int maxevents, u32 n_evts, double wait_for_time)
+{
+ vcl_mq_evt_conn_t *mqc;
+ int __clib_unused n_read;
+ int n_mq_evts, i;
+ u64 buf;
- VCL_SESSION_UNLOCK ();
+ vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
+again:
+ n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
+ vec_len (wrk->mq_events), wait_for_time);
+ for (i = 0; i < n_mq_evts; i++)
+ {
+ mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
+ n_read = read (mqc->mq_fd, &buf, sizeof (buf));
+ vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
+ }
+ if (!n_evts && n_mq_evts > 0)
+ goto again;
- if (PREDICT_FALSE (is_vep))
- {
- VDBG (0, "VCL<%d>: ERROR: sid (%u) is a vep!",
- getpid (), vep_idx);
- rv = VPPCOM_EINVAL;
- goto done;
- }
- if (PREDICT_FALSE (!is_vep_session))
- {
- VDBG (0, "VCL<%d>: ERROR: session (%u) is not "
- "a vep session!", getpid (), sid);
- rv = VPPCOM_EINVAL;
- goto done;
- }
- if (PREDICT_FALSE (session_vep_idx != vep_idx))
- {
- clib_warning ("VCL<%d>: ERROR: session (%u) "
- "vep_idx (%u) != vep_idx (%u)!",
- getpid (), sid, session_vep_idx, vep_idx);
- rv = VPPCOM_EINVAL;
- goto done;
- }
+ return (int) n_evts;
+}
- add_event = clear_et_mask = 0;
+int
+vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
+ int maxevents, double wait_for_time)
+{
+ vcl_worker_t *wrk = vcl_worker_get_current ();
+ vcl_session_t *vep_session;
+ u32 n_evts = 0;
+ int i;
- if (EPOLLIN & session_events)
- {
- VCL_SESSION_LOCK_AND_GET (sid, &session);
- ready = vppcom_session_read_ready (session, sid);
- VCL_SESSION_UNLOCK ();
- if ((ready > 0) && (EPOLLIN & et_mask))
- {
- add_event = 1;
- events[num_ev].events |= EPOLLIN;
- if (((EPOLLET | EPOLLIN) & session_events) ==
- (EPOLLET | EPOLLIN))
- clear_et_mask |= EPOLLIN;
- }
- else if (ready < 0)
- {
- add_event = 1;
- switch (ready)
- {
- case VPPCOM_ECONNRESET:
- events[num_ev].events |= EPOLLHUP | EPOLLRDHUP;
- break;
+ if (PREDICT_FALSE (maxevents <= 0))
+ {
+ clib_warning ("VCL<%d>: ERROR: Invalid maxevents (%d)!",
+ getpid (), maxevents);
+ return VPPCOM_EINVAL;
+ }
- default:
- events[num_ev].events |= EPOLLERR;
- break;
- }
- }
- }
+ vep_session = vcl_session_get_w_handle (wrk, vep_handle);
+ if (!vep_session)
+ return VPPCOM_EBADFD;
- if (EPOLLOUT & session_events)
- {
- VCL_SESSION_LOCK_AND_GET (sid, &session);
- ready = vppcom_session_write_ready (session, sid);
- VCL_SESSION_UNLOCK ();
- if ((ready > 0) && (EPOLLOUT & et_mask))
- {
- add_event = 1;
- events[num_ev].events |= EPOLLOUT;
- if (((EPOLLET | EPOLLOUT) & session_events) ==
- (EPOLLET | EPOLLOUT))
- clear_et_mask |= EPOLLOUT;
- }
- else if (ready < 0)
- {
- add_event = 1;
- switch (ready)
- {
- case VPPCOM_ECONNRESET:
- events[num_ev].events |= EPOLLHUP;
- break;
+ if (PREDICT_FALSE (!vep_session->is_vep))
+ {
+ clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
+ getpid (), vep_handle);
+ return VPPCOM_EINVAL;
+ }
- default:
- events[num_ev].events |= EPOLLERR;
- break;
- }
- }
- }
+ memset (events, 0, sizeof (*events) * maxevents);
- if (add_event)
- {
- events[num_ev].data.u64 = session_ev_data;
- if (EPOLLONESHOT & session_events)
- {
- VCL_SESSION_LOCK_AND_GET (sid, &session);
- session->vep.ev.events = 0;
- VCL_SESSION_UNLOCK ();
- }
- num_ev++;
- if (num_ev == maxevents)
- {
- VCL_SESSION_LOCK_AND_GET (vep_idx, &vep_session);
- vep_session->wait_cont_idx = next_sid;
- VCL_SESSION_UNLOCK ();
- goto done;
- }
- }
- if (wait_cont_idx != ~0)
+ if (vec_len (wrk->unhandled_evts_vector))
+ {
+ for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
+ {
+ vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
+ events, &n_evts);
+ if (n_evts == maxevents)
{
- if (next_sid == ~0)
- next_sid = vep_next_sid;
- else if (next_sid == wait_cont_idx)
- next_sid = ~0;
+ i += 1;
+ break;
}
}
- if (wait_for_time != -1)
- keep_trying = (clib_time_now (&vcm->clib_time) <= timeout) ? 1 : 0;
- }
- while ((num_ev == 0) && keep_trying);
- if (wait_cont_idx != ~0)
- {
- VCL_SESSION_LOCK_AND_GET (vep_idx, &vep_session);
- vep_session->wait_cont_idx = ~0;
- VCL_SESSION_UNLOCK ();
+ vec_delete (wrk->unhandled_evts_vector, i, 0);
}
-done:
- return (rv != VPPCOM_OK) ? rv : num_ev;
+
+ if (vcm->cfg.use_mq_eventfd)
+ return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
+ wait_for_time);
+
+ return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
+ wait_for_time);
}
int
-vppcom_session_attr (uint32_t session_index, uint32_t op,
+vppcom_session_attr (uint32_t session_handle, uint32_t op,
void *buffer, uint32_t * buflen)
{
+ vcl_worker_t *wrk = vcl_worker_get_current ();
vcl_session_t *session;
int rv = VPPCOM_OK;
u32 *flags = buffer;
vppcom_endpt_t *ep = buffer;
- VCL_SESSION_LOCK_AND_GET (session_index, &session);
-
- ASSERT (session);
+ session = vcl_session_get_w_handle (wrk, session_handle);
+ if (!session)
+ return VPPCOM_EBADFD;
switch (op)
{
case VPPCOM_ATTR_GET_NREAD:
- rv = vppcom_session_read_ready (session, session_index);
+ rv = vppcom_session_read_ready (session);
VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_NREAD: sid %u, nread = %d",
getpid (), rv);
break;
case VPPCOM_ATTR_GET_NWRITE:
- rv = vppcom_session_write_ready (session, session_index);
+ rv = vppcom_session_write_ready (session);
VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_NWRITE: sid %u, nwrite = %d",
- getpid (), session_index, rv);
+ getpid (), session_handle, rv);
break;
case VPPCOM_ATTR_GET_FLAGS:
*buflen = sizeof (*flags);
VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_FLAGS: sid %u, flags = 0x%08x, "
"is_nonblocking = %u", getpid (),
- session_index, *flags,
+ session_handle, *flags,
VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
}
else
VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_FLAGS: sid %u, flags = 0x%08x,"
" is_nonblocking = %u",
- getpid (), session_index, *flags,
+ getpid (), session_handle, *flags,
VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
}
else
ep->is_ip4 = session->transport.is_ip4;
ep->port = session->transport.rmt_port;
if (session->transport.is_ip4)
- clib_memcpy (ep->ip, &session->transport.rmt_ip.ip4,
- sizeof (ip4_address_t));
+ clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
+ sizeof (ip4_address_t));
else
- clib_memcpy (ep->ip, &session->transport.rmt_ip.ip6,
- sizeof (ip6_address_t));
+ clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
+ sizeof (ip6_address_t));
*buflen = sizeof (*ep);
VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_PEER_ADDR: sid %u, is_ip4 = %u, "
"addr = %U, port %u", getpid (),
- session_index, ep->is_ip4, format_ip46_address,
+ session_handle, ep->is_ip4, format_ip46_address,
&session->transport.rmt_ip,
ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
clib_net_to_host_u16 (ep->port));
ep->is_ip4 = session->transport.is_ip4;
ep->port = session->transport.lcl_port;
if (session->transport.is_ip4)
- clib_memcpy (ep->ip, &session->transport.lcl_ip.ip4,
- sizeof (ip4_address_t));
+ clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
+ sizeof (ip4_address_t));
else
- clib_memcpy (ep->ip, &session->transport.lcl_ip.ip6,
- sizeof (ip6_address_t));
+ clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
+ sizeof (ip6_address_t));
*buflen = sizeof (*ep);
VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_LCL_ADDR: sid %u, is_ip4 = %u,"
" addr = %U port %d", getpid (),
- session_index, ep->is_ip4, format_ip46_address,
+ session_handle, ep->is_ip4, format_ip46_address,
&session->transport.lcl_ip,
ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
clib_net_to_host_u16 (ep->port));
break;
}
-done:
- VCL_SESSION_UNLOCK ();
return rv;
}
int
-vppcom_session_recvfrom (uint32_t session_index, void *buffer,
+vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
uint32_t buflen, int flags, vppcom_endpt_t * ep)
{
+ vcl_worker_t *wrk = vcl_worker_get_current ();
int rv = VPPCOM_OK;
vcl_session_t *session = 0;
if (ep)
{
- VCL_SESSION_LOCK ();
- rv = vppcom_session_at_index (session_index, &session);
- if (PREDICT_FALSE (rv))
+ session = vcl_session_get_w_handle (wrk, session_handle);
+ if (PREDICT_FALSE (!session))
{
- VCL_SESSION_UNLOCK ();
VDBG (0, "VCL<%d>: invalid session, sid (%u) has been closed!",
- getpid (), session_index);
- rv = VPPCOM_EBADFD;
- VCL_SESSION_UNLOCK ();
- goto done;
+ getpid (), session_handle);
+ return VPPCOM_EBADFD;
}
ep->is_ip4 = session->transport.is_ip4;
ep->port = session->transport.rmt_port;
- if (session->transport.is_ip4)
- clib_memcpy (ep->ip, &session->transport.rmt_ip.ip4,
- sizeof (ip4_address_t));
- else
- clib_memcpy (ep->ip, &session->transport.rmt_ip.ip6,
- sizeof (ip6_address_t));
- VCL_SESSION_UNLOCK ();
}
if (flags == 0)
- rv = vppcom_session_read (session_index, buffer, buflen);
+ rv = vppcom_session_read (session_handle, buffer, buflen);
else if (flags & MSG_PEEK)
- rv = vppcom_session_peek (session_index, buffer, buflen);
+ rv = vppcom_session_peek (session_handle, buffer, buflen);
else
{
clib_warning ("VCL<%d>: Unsupport flags for recvfrom %d",
getpid (), flags);
- rv = VPPCOM_EAFNOSUPPORT;
+ return VPPCOM_EAFNOSUPPORT;
+ }
+
+ if (ep)
+ {
+ if (session->transport.is_ip4)
+ clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
+ sizeof (ip4_address_t));
+ else
+ clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
+ sizeof (ip6_address_t));
}
-done:
return rv;
}
int
-vppcom_session_sendto (uint32_t session_index, void *buffer,
+vppcom_session_sendto (uint32_t session_handle, void *buffer,
uint32_t buflen, int flags, vppcom_endpt_t * ep)
{
if (!buffer)
getpid (), flags, flags);
}
- return (vppcom_session_write (session_index, buffer, buflen));
+ return (vppcom_session_write (session_handle, buffer, buflen));
}
int
vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
{
- f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time;
+ vcl_worker_t *wrk = vcl_worker_get_current ();
+ f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
u32 i, keep_trying = 1;
+ svm_msg_q_msg_t msg;
+ session_event_t *e;
int rv, num_ev = 0;
VDBG (3, "VCL<%d>: vp %p, nsids %u, wait_for_time %f",
{
vcl_session_t *session;
- for (i = 0; i < n_sids; i++)
+ /* Dequeue all events and drop all unhandled io events */
+ while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
{
- ASSERT (vp[i].revents);
+ e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
+ vcl_handle_mq_event (wrk, e);
+ svm_msg_q_free_msg (wrk->app_event_queue, &msg);
+ }
+ vec_reset_length (wrk->unhandled_evts_vector);
- VCL_SESSION_LOCK_AND_GET (vp[i].sid, &session);
- VCL_SESSION_UNLOCK ();
+ for (i = 0; i < n_sids; i++)
+ {
+ session = vcl_session_get (wrk, vp[i].sid);
+ if (!session)
+ {
+ vp[i].revents = POLLHUP;
+ num_ev++;
+ continue;
+ }
- if (*vp[i].revents)
- *vp[i].revents = 0;
+ vp[i].revents = 0;
if (POLLIN & vp[i].events)
{
- VCL_SESSION_LOCK_AND_GET (vp[i].sid, &session);
- rv = vppcom_session_read_ready (session, vp[i].sid);
- VCL_SESSION_UNLOCK ();
+ rv = vppcom_session_read_ready (session);
if (rv > 0)
{
- *vp[i].revents |= POLLIN;
+ vp[i].revents |= POLLIN;
num_ev++;
}
else if (rv < 0)
switch (rv)
{
case VPPCOM_ECONNRESET:
- *vp[i].revents = POLLHUP;
+ vp[i].revents = POLLHUP;
break;
default:
- *vp[i].revents = POLLERR;
+ vp[i].revents = POLLERR;
break;
}
num_ev++;
if (POLLOUT & vp[i].events)
{
- VCL_SESSION_LOCK_AND_GET (vp[i].sid, &session);
- rv = vppcom_session_write_ready (session, vp[i].sid);
- VCL_SESSION_UNLOCK ();
+ rv = vppcom_session_write_ready (session);
if (rv > 0)
{
- *vp[i].revents |= POLLOUT;
+ vp[i].revents |= POLLOUT;
num_ev++;
}
else if (rv < 0)
switch (rv)
{
case VPPCOM_ECONNRESET:
- *vp[i].revents = POLLHUP;
+ vp[i].revents = POLLHUP;
break;
default:
- *vp[i].revents = POLLERR;
+ vp[i].revents = POLLERR;
break;
}
num_ev++;
if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
{
- done:
- *vp[i].revents = POLLNVAL;
+ vp[i].revents = POLLNVAL;
num_ev++;
}
}
if (wait_for_time != -1)
- keep_trying = (clib_time_now (&vcm->clib_time) <= timeout) ? 1 : 0;
+ keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
}
while ((num_ev == 0) && keep_trying);
{
clib_warning ("VCL<%d>: vp[%d].sid %d (0x%x), .events 0x%x, "
".revents 0x%x", getpid (), i, vp[i].sid, vp[i].sid,
- vp[i].events, *vp[i].revents);
+ vp[i].events, vp[i].revents);
}
}
return num_ev;
}
+int
+vppcom_mq_epoll_fd (void)
+{
+ vcl_worker_t *wrk = vcl_worker_get_current ();
+ return wrk->mqs_epfd;
+}
+
+int
+vppcom_session_index (uint32_t session_handle)
+{
+ return session_handle & 0xFFFFFF;
+}
+
+int
+vppcom_worker_register (void)
+{
+ if (vcl_worker_alloc_and_init ())
+ return VPPCOM_OK;
+ return VPPCOM_EEXIST;
+}
+
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / blobdiff