#include <vpp/api/vpe_all_api_h.h>
#undef vl_printfun
+#define TCP_ECHO_DBG 0
+#define DBG(_fmt,_args...) \
+ if (TCP_ECHO_DBG) \
+ clib_warning (_fmt, _args)
+
typedef struct
{
svm_fifo_t *server_rx_fifo;
svm_fifo_t *server_tx_fifo;
+ svm_queue_t *vpp_evt_q;
+
u64 vpp_session_handle;
- u64 bytes_received;
+ u64 bytes_sent;
+ u64 bytes_to_send;
+ volatile u64 bytes_received;
+ volatile u64 bytes_to_receive;
f64 start;
} session_t;
STATE_ATTACHED,
STATE_READY,
STATE_DISCONNECTING,
- STATE_FAILED
+ STATE_FAILED,
+ STATE_DETACHED
} connection_state_t;
typedef struct
uword *error_string_by_error_number;
u8 *connect_test_data;
- pthread_t client_rx_thread_handle;
+ pthread_t *client_thread_handles;
+ u32 *thread_args;
u32 client_bytes_received;
u8 test_return_packets;
u64 bytes_to_send;
u32 fifo_size;
+ u32 n_clients;
+ u64 tx_total;
+ u64 rx_total;
+
+ volatile u32 n_clients_connected;
+ volatile u32 n_active_clients;
+
+
/** Flag that decides if socket, instead of svm, api is used to connect to
* vpp. If sock api is used, shm binary api is subsequently bootstrapped
* and all other messages are exchanged using shm IPC. */
if (em->time_to_stop == 1)
return 0;
}
- clib_warning ("timeout waiting for STATE_READY");
+ clib_warning ("timeout waiting for state %d", state);
return -1;
}
bmp->options[APP_OPTIONS_TX_FIFO_SIZE] = em->fifo_size;
bmp->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = 128 << 20;
bmp->options[APP_OPTIONS_SEGMENT_SIZE] = 256 << 20;
+ bmp->options[APP_OPTIONS_EVT_QUEUE_SIZE] = 256;
vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & bmp);
cert_mp = vl_msg_api_alloc (sizeof (*cert_mp) + test_srv_crt_rsa_len);
bmp->context = ntohl (0xfeedface);
vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & bmp);
- clib_warning ("Sent detach");
+ DBG ("%s", "Sent detach");
}
static int
{
if (mp->retval)
clib_warning ("detach returned with err: %d", mp->retval);
+ echo_main.state = STATE_DETACHED;
}
static void
vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & rmp);
}
-void
-client_handle_fifo_event_rx (echo_main_t * em, session_fifo_event_t * e)
+static void
+test_recv_bytes (session_t * s, u8 * rx_buf, u32 n_read)
{
- svm_fifo_t *rx_fifo;
- int n_read, bytes, i;
+ int i;
+ for (i = 0; i < n_read; i++)
+ {
+ if (rx_buf[i] != ((s->bytes_received + i) & 0xff))
+ {
+ clib_warning ("error at byte %lld, 0x%x not 0x%x",
+ s->bytes_received + i, rx_buf[i],
+ ((s->bytes_received + i) & 0xff));
+ }
+ }
+}
- rx_fifo = e->fifo;
+static void
+recv_test_chunk (echo_main_t * em, session_t * s, u8 * rx_buf)
+{
+ svm_fifo_t *rx_fifo = s->server_rx_fifo;
+ u32 n_read_now, n_to_read;
+ int n_read;
- bytes = svm_fifo_max_dequeue (rx_fifo);
- /* Allow enqueuing of new event */
+ n_to_read = svm_fifo_max_dequeue (rx_fifo);
svm_fifo_unset_event (rx_fifo);
- /* Read the bytes */
do
{
- n_read = svm_fifo_dequeue_nowait (rx_fifo,
- clib_min (vec_len (em->rx_buf),
- bytes), em->rx_buf);
- if (n_read > 0)
- {
- bytes -= n_read;
- if (em->test_return_packets)
- {
- for (i = 0; i < n_read; i++)
- {
- if (em->rx_buf[i]
- != ((em->client_bytes_received + i) & 0xff))
- {
- clib_warning ("error at byte %lld, 0x%x not 0x%x",
- em->client_bytes_received + i,
- em->rx_buf[i],
- ((em->client_bytes_received + i) & 0xff));
- }
- }
- }
- em->client_bytes_received += n_read;
- }
- else
- {
- if (n_read == -2)
- {
-// clib_warning ("weird!");
- break;
- }
- }
+ n_read_now = clib_min (vec_len (rx_buf), n_to_read);
+ n_read = svm_fifo_dequeue_nowait (rx_fifo, n_read_now, rx_buf);
+ if (n_read <= 0)
+ break;
+ if (n_read_now != n_read)
+ clib_warning ("huh?");
+
+ if (em->test_return_packets)
+ test_recv_bytes (s, rx_buf, n_read);
+
+ n_to_read -= n_read;
+ s->bytes_received += n_read;
+ s->bytes_to_receive -= n_read;
}
- while (bytes > 0);
+ while (n_to_read > 0);
}
void
-client_handle_event_queue (echo_main_t * em)
+client_handle_fifo_event_rx (echo_main_t * em, session_fifo_event_t * e,
+ u8 * rx_buf)
{
- session_fifo_event_t _e, *e = &_e;;
+ session_t *s;
- svm_queue_sub (em->our_event_queue, (u8 *) e, SVM_Q_WAIT, 0);
- switch (e->event_type)
- {
- case FIFO_EVENT_APP_RX:
- client_handle_fifo_event_rx (em, e);
- break;
+ s = pool_elt_at_index (em->sessions, e->fifo->client_session_index);
+ recv_test_chunk (em, s, rx_buf);
+}
- case FIFO_EVENT_DISCONNECT:
- return;
+static void
+send_test_chunk (echo_main_t * em, session_t * s)
+{
+ u64 test_buf_len, bytes_this_chunk, test_buf_offset;
+ svm_fifo_t *tx_fifo = s->server_tx_fifo;
+ u8 *test_data = em->connect_test_data;
+ u32 enq_space, min_chunk = 16 << 10;
+ session_fifo_event_t evt;
+ int written;
+
+ test_buf_len = vec_len (test_data);
+ test_buf_offset = s->bytes_sent % test_buf_len;
+ bytes_this_chunk = clib_min (test_buf_len - test_buf_offset,
+ s->bytes_to_send);
+ enq_space = svm_fifo_max_enqueue (tx_fifo);
+ if (enq_space < clib_min (bytes_this_chunk, min_chunk))
+ return;
- default:
- clib_warning ("unknown event type %d", e->event_type);
- break;
+ bytes_this_chunk = clib_min (bytes_this_chunk, enq_space);
+ written = svm_fifo_enqueue_nowait (tx_fifo, bytes_this_chunk,
+ test_data + test_buf_offset);
+
+ if (written > 0)
+ {
+ s->bytes_to_send -= written;
+ s->bytes_sent += written;
+
+ if (svm_fifo_set_event (tx_fifo))
+ {
+ /* Fabricate TX event, send to vpp */
+ evt.fifo = tx_fifo;
+ evt.event_type = FIFO_EVENT_APP_TX;
+ svm_queue_add (s->vpp_evt_q, (u8 *) & evt, 0 /* wait for mutex */ );
+ }
}
}
+/*
+ * Rx/Tx polling thread per connection
+ */
static void *
+client_thread_fn (void *arg)
+{
+ echo_main_t *em = &echo_main;
+ static u8 *rx_buf = 0;
+ u32 session_index = *(u32 *) arg;
+ session_t *s;
+
+ vec_validate (rx_buf, 1 << 20);
+
+ while (!em->time_to_stop && em->state != STATE_READY)
+ ;
+
+ s = pool_elt_at_index (em->sessions, session_index);
+ while (!em->time_to_stop)
+ {
+ send_test_chunk (em, s);
+ recv_test_chunk (em, s, rx_buf);
+ if (!s->bytes_to_send && !s->bytes_to_receive)
+ break;
+ }
+
+ DBG ("session %d done", session_index);
+ em->tx_total += s->bytes_sent;
+ em->rx_total += s->bytes_received;
+ em->n_active_clients--;
+
+ pthread_exit (0);
+}
+
+/*
+ * Rx thread that handles all connections.
+ *
+ * Not used.
+ */
+void *
client_rx_thread_fn (void *arg)
{
session_fifo_event_t _e, *e = &_e;
echo_main_t *em = &echo_main;
+ static u8 *rx_buf = 0;
- em->client_bytes_received = 0;
- while (1)
+ vec_validate (rx_buf, 1 << 20);
+
+ while (!em->time_to_stop && em->state != STATE_READY)
+ ;
+
+ while (!em->time_to_stop)
{
svm_queue_sub (em->our_event_queue, (u8 *) e, SVM_Q_WAIT, 0);
switch (e->event_type)
{
case FIFO_EVENT_APP_RX:
- client_handle_fifo_event_rx (em, e);
+ client_handle_fifo_event_rx (em, e, rx_buf);
break;
-
- case FIFO_EVENT_DISCONNECT:
- return 0;
default:
clib_warning ("unknown event type %d", e->event_type);
break;
}
-
- if (PREDICT_FALSE (em->time_to_stop == 1))
- break;
}
pthread_exit (0);
}
-
static void
vl_api_connect_session_reply_t_handler (vl_api_connect_session_reply_t * mp)
{
em->state = STATE_FAILED;
return;
}
- else
- {
- clib_warning ("connected with local ip %U port %d", format_ip46_address,
- mp->lcl_ip, mp->is_ip4,
- clib_net_to_host_u16 (mp->lcl_port));
- }
-
- em->vpp_event_queue =
- uword_to_pointer (mp->vpp_event_queue_address, svm_queue_t *);
/*
* Setup session
*/
pool_get (em->sessions, session);
+ memset (session, 0, sizeof (*session));
session_index = session - em->sessions;
rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
session->server_tx_fifo = tx_fifo;
session->vpp_session_handle = mp->handle;
session->start = clib_time_now (&em->clib_time);
+ session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
+ svm_queue_t *);
- /* Save handle */
- em->connected_session_index = session_index;
- em->state = STATE_READY;
-
- /* Add it to lookup table */
hash_set (em->session_index_by_vpp_handles, mp->handle, session_index);
- /* Start RX thread */
- rv = pthread_create (&em->client_rx_thread_handle,
- NULL /*attr */ , client_rx_thread_fn, 0);
+ /*
+ * Start RX thread
+ */
+ em->thread_args[em->n_clients_connected] = session_index;
+ rv = pthread_create (&em->client_thread_handles[em->n_clients_connected],
+ NULL /*attr */ , client_thread_fn,
+ (void *) &em->thread_args[em->n_clients_connected]);
if (rv)
{
clib_warning ("pthread_create returned %d", rv);
- rv = VNET_API_ERROR_SYSCALL_ERROR_1;
- }
-}
-
-static void
-send_test_chunk (echo_main_t * em, svm_fifo_t * tx_fifo, int mypid, u32 bytes)
-{
- u32 bytes_to_snd, enq_space, min_chunk = 16 << 10;
- u8 *test_data = em->connect_test_data;
- u64 bytes_sent = 0;
- int test_buf_offset = 0;
- session_fifo_event_t evt;
- int rv;
-
- bytes_to_snd = (bytes == 0) ? vec_len (test_data) : bytes;
- if (bytes_to_snd > vec_len (test_data))
- bytes_to_snd = vec_len (test_data);
-
- while (bytes_to_snd > 0 && !em->time_to_stop)
- {
- enq_space = svm_fifo_max_enqueue (tx_fifo);
- if (enq_space < clib_min (bytes_to_snd, min_chunk))
- continue;
- rv = svm_fifo_enqueue_nowait (tx_fifo,
- clib_min (bytes_to_snd, enq_space),
- test_data + test_buf_offset);
- if (rv > 0)
- {
- bytes_to_snd -= rv;
- test_buf_offset += rv;
- bytes_sent += rv;
-
- if (svm_fifo_set_event (tx_fifo))
- {
- /* Fabricate TX event, send to vpp */
- evt.fifo = tx_fifo;
- evt.event_type = FIFO_EVENT_APP_TX;
- svm_queue_add (em->vpp_event_queue, (u8 *) & evt,
- 0 /* do wait for mutex */ );
- }
- }
- }
-}
-
-void
-client_send_data (echo_main_t * em)
-{
- u8 *test_data = em->connect_test_data;
- int mypid = getpid ();
- session_t *session;
- svm_fifo_t *tx_fifo;
- u32 n_iterations, leftover;
- int i;
-
- session = pool_elt_at_index (em->sessions, em->connected_session_index);
- tx_fifo = session->server_tx_fifo;
-
- ASSERT (vec_len (test_data) > 0);
-
- vec_validate (em->rx_buf, vec_len (test_data) - 1);
- n_iterations = em->bytes_to_send / vec_len (test_data);
-
- for (i = 0; i < n_iterations; i++)
- {
- send_test_chunk (em, tx_fifo, mypid, 0);
- if (em->time_to_stop)
- break;
- }
-
- leftover = em->bytes_to_send % vec_len (test_data);
- if (leftover)
- send_test_chunk (em, tx_fifo, mypid, leftover);
-
- if (!em->no_return)
- {
- f64 timeout = clib_time_now (&em->clib_time) + 10;
-
- /* Wait for the outstanding packets */
- while (em->client_bytes_received <
- vec_len (test_data) * n_iterations + leftover)
- {
- if (clib_time_now (&em->clib_time) > timeout)
- {
- clib_warning ("timed out waiting for the missing packets");
- break;
- }
- }
+ return;
}
- em->time_to_stop = 1;
+ em->n_clients_connected += 1;
+ clib_warning ("session %u (0x%llx) connected with local ip %U port %d",
+ session_index, mp->handle, format_ip46_address, mp->lcl_ip,
+ mp->is_ip4, clib_net_to_host_u16 (mp->lcl_port));
}
void
vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & cmp);
}
-int
-client_connect (echo_main_t * em)
-{
- client_send_connect (em);
- if (wait_for_state_change (em, STATE_READY))
- {
- clib_warning ("Connect failed");
- return -1;
- }
- return 0;
-}
-
void
-client_send_disconnect (echo_main_t * em)
+client_send_disconnect (echo_main_t * em, session_t * s)
{
- session_t *connected_session;
vl_api_disconnect_session_t *dmp;
- connected_session = pool_elt_at_index (em->sessions,
- em->connected_session_index);
dmp = vl_msg_api_alloc (sizeof (*dmp));
memset (dmp, 0, sizeof (*dmp));
dmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION);
dmp->client_index = em->my_client_index;
- dmp->handle = connected_session->vpp_session_handle;
+ dmp->handle = s->vpp_session_handle;
vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & dmp);
}
int
-client_disconnect (echo_main_t * em)
+client_disconnect (echo_main_t * em, session_t * s)
{
- client_send_disconnect (em);
- clib_warning ("Sent disconnect");
- if (wait_for_state_change (em, STATE_START))
- {
- clib_warning ("Disconnect failed");
- return -1;
- }
+ client_send_disconnect (em, s);
+ pool_put (em->sessions, s);
+ memset (s, 0xfe, sizeof (*s));
return 0;
}
static void
-client_run (echo_main_t * em)
+clients_run (echo_main_t * em)
{
+ session_fifo_event_t _e, *e = &_e;
+ f64 start_time, deltat, timeout = 100.0;
+ session_t *s;
int i;
+ /* Init test data */
+ vec_validate (em->connect_test_data, 1024 * 1024 - 1);
+ for (i = 0; i < vec_len (em->connect_test_data); i++)
+ em->connect_test_data[i] = i & 0xff;
+
+ /*
+ * Attach and connect the clients
+ */
if (application_attach (em))
return;
- if (client_connect (em))
+ for (i = 0; i < em->n_clients; i++)
+ client_send_connect (em);
+
+ start_time = clib_time_now (&em->clib_time);
+ while (em->n_clients_connected < em->n_clients
+ && (clib_time_now (&em->clib_time) - start_time < timeout)
+ && em->state != STATE_FAILED)
+ ;
+
+ if (em->n_clients_connected != em->n_clients)
{
- application_detach (em);
+ clib_warning ("failed to initialize all connections");
return;
}
- /* Init test data */
- vec_validate (em->connect_test_data, 1024 * 1024 - 1);
- for (i = 0; i < vec_len (em->connect_test_data); i++)
- em->connect_test_data[i] = i & 0xff;
+ /*
+ * Initialize connections
+ */
+ for (i = 0; i < em->n_clients; i++)
+ {
+ s = pool_elt_at_index (em->sessions, i);
+ s->bytes_to_send = em->bytes_to_send;
+ if (!em->no_return)
+ s->bytes_to_receive = em->bytes_to_send;
+ }
+ em->n_active_clients = em->n_clients_connected;
+
+ /*
+ * Wait for client threads to send the data
+ */
+ start_time = clib_time_now (&em->clib_time);
+ em->state = STATE_READY;
+ while (em->n_active_clients)
+ svm_queue_sub (em->our_event_queue, (u8 *) e, SVM_Q_NOWAIT, 0);
+
+
+ for (i = 0; i < em->n_clients; i++)
+ {
+ s = pool_elt_at_index (em->sessions, i);
+ client_disconnect (em, s);
+ }
- /* Start send */
- client_send_data (em);
+ /*
+ * Stats and detach
+ */
+ deltat = clib_time_now (&em->clib_time) - start_time;
+ fformat (stdout, "%lld bytes (%lld mbytes, %lld gbytes) in %.2f seconds\n",
+ em->tx_total, em->tx_total / (1ULL << 20),
+ em->tx_total / (1ULL << 30), deltat);
+ fformat (stdout, "%.4f Gbit/second\n", (em->tx_total * 8.0) / deltat / 1e9);
- /* Disconnect and detach */
- client_disconnect (em);
application_detach (em);
}
rx_buf_len = vec_len (em->rx_buf);
rx_fifo = e->fifo;
- session = &em->sessions[rx_fifo->client_session_index];
+ session = pool_elt_at_index (em->sessions, rx_fifo->client_session_index);
tx_fifo = session->server_tx_fifo;
max_dequeue = svm_fifo_max_dequeue (rx_fifo);
/* Allow enqueuing of a new event */
svm_fifo_unset_event (rx_fifo);
- if (PREDICT_FALSE (max_dequeue == 0))
- {
- return;
- }
+ if (PREDICT_FALSE (!max_dequeue))
+ return;
/* Read the max_dequeue */
do
{
max_dequeue -= n_read;
session->bytes_received += n_read;
+ session->bytes_to_receive -= n_read;
}
/* Reflect if a non-drop session */
mp)
{
echo_main_t *em = &echo_main;
- session_t *session;
+ uword *p;
if (mp->retval)
{
clib_warning ("vpp complained about disconnect: %d",
ntohl (mp->retval));
+ return;
}
em->state = STATE_START;
- session = pool_elt_at_index (em->sessions, em->connected_session_index);
- if (session)
- session_print_stats (em, session);
+
+ p = hash_get (em->session_index_by_vpp_handles, mp->handle);
+ if (p)
+ {
+ hash_unset (em->session_index_by_vpp_handles, mp->handle);
+ }
+ else
+ {
+ clib_warning ("couldn't find session key %llx", mp->handle);
+ }
}
static void
vec_validate (em->rx_buf, 128 << 10);
+ memset (em, 0, sizeof (*em));
em->session_index_by_vpp_handles = hash_create (0, sizeof (uword));
em->my_pid = getpid ();
em->configured_segment_size = 1 << 20;
em->socket_name = 0;
em->use_sock_api = 1;
em->fifo_size = 64 << 10;
+ em->n_clients = 1;
clib_time_init (&em->clib_time);
init_error_string_table (em);
em->use_sock_api = 0;
else if (unformat (a, "fifo-size %d", &tmp))
em->fifo_size = tmp << 10;
+ else if (unformat (a, "nclients %d", &em->n_clients))
+ ;
else
{
fformat (stderr, "%s: usage [master|slave]\n");
em->test_return_packets = test_return_packets;
em->bytes_to_send = bytes_to_send;
em->time_to_stop = 0;
+ vec_validate (em->client_thread_handles, em->n_clients - 1);
+ vec_validate (em->thread_args, em->n_clients - 1);
setup_signal_handlers ();
tcp_echo_api_hookup (em);
}
if (i_am_server == 0)
- client_run (em);
+ clients_run (em);
else
server_run (em);
+ /* Make sure detach finishes */
+ wait_for_state_change (em, STATE_DETACHED);
+
disconnect_from_vpp (em);
exit (0);
}
Code Review / vpp.git / commitdiff