X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Ftcp%2Fbuiltin_server.c;h=295c189d86904ef0be18fc20d92d4182dc57c5d9;hb=2245c0fe254f22cb64df193b90e0e6c3c6ef7847;hp=be65642ae3b4895462a7ad362fcb6f33ce0b0415;hpb=e04c29942af6a130591059679531c9ffa3d7237a;p=vpp.git diff --git a/src/vnet/tcp/builtin_server.c b/src/vnet/tcp/builtin_server.c index be65642ae3b..295c189d869 100644 --- a/src/vnet/tcp/builtin_server.c +++ b/src/vnet/tcp/builtin_server.c @@ -18,22 +18,76 @@ #include #include +typedef struct +{ + /* + * Server app parameters + */ + unix_shared_memory_queue_t **vpp_queue; + unix_shared_memory_queue_t *vl_input_queue; /**< Sever's event queue */ + + u32 app_index; /**< Server app index */ + u32 my_client_index; /**< API client handle */ + u32 node_index; /**< process node index for evnt scheduling */ + + /* + * Config params + */ + u8 no_echo; /**< Don't echo traffic */ + u32 fifo_size; /**< Fifo size */ + u32 rcv_buffer_size; /**< Rcv buffer size */ + u32 prealloc_fifos; /**< Preallocate fifos */ + u32 private_segment_count; /**< Number of private segments */ + u32 private_segment_size; /**< Size of private segments */ + char *server_uri; /**< Server URI */ + + /* + * Test state + */ + u8 **rx_buf; /**< Per-thread RX buffer */ + u64 byte_index; + u32 **rx_retries; + + vlib_main_t *vlib_main; +} builtin_server_main_t; + +builtin_server_main_t builtin_server_main; + int builtin_session_accept_callback (stream_session_t * s) { - clib_warning ("called..."); + builtin_server_main_t *bsm = &builtin_server_main; + + bsm->vpp_queue[s->thread_index] = + session_manager_get_vpp_event_queue (s->thread_index); s->session_state = SESSION_STATE_READY; + bsm->byte_index = 0; + vec_validate (bsm->rx_retries[s->thread_index], s->session_index); + bsm->rx_retries[s->thread_index][s->session_index] = 0; return 0; } void builtin_session_disconnect_callback (stream_session_t * s) { - clib_warning ("called..."); + builtin_server_main_t *bsm = &builtin_server_main; + vnet_disconnect_args_t _a, *a = &_a; + + a->handle = stream_session_handle (s); + a->app_index = bsm->app_index; + vnet_disconnect_session (a); } +void +builtin_session_reset_callback (stream_session_t * s) +{ + clib_warning ("Reset session %U", format_stream_session, s, 2); + stream_session_cleanup (s); +} + + int -builtin_session_connected_callback (u32 client_index, +builtin_session_connected_callback (u32 app_index, u32 api_context, stream_session_t * s, u8 is_fail) { clib_warning ("called..."); @@ -55,10 +109,140 @@ builtin_redirect_connect_callback (u32 client_index, void *mp) return -1; } +void +test_bytes (builtin_server_main_t * bsm, int actual_transfer) +{ + int i; + u32 my_thread_id = vlib_get_thread_index (); + + for (i = 0; i < actual_transfer; i++) + { + if (bsm->rx_buf[my_thread_id][i] != ((bsm->byte_index + i) & 0xff)) + { + clib_warning ("at %lld expected %d got %d", bsm->byte_index + i, + (bsm->byte_index + i) & 0xff, + bsm->rx_buf[my_thread_id][i]); + } + } + bsm->byte_index += actual_transfer; +} + +/* + * If no-echo, just read the data and be done with it + */ +int +builtin_server_rx_callback_no_echo (stream_session_t * s) +{ + builtin_server_main_t *bsm = &builtin_server_main; + u32 my_thread_id = vlib_get_thread_index (); + int actual_transfer; + svm_fifo_t *rx_fifo; + + rx_fifo = s->server_rx_fifo; + + do + { + actual_transfer = + svm_fifo_dequeue_nowait (rx_fifo, bsm->rcv_buffer_size, + bsm->rx_buf[my_thread_id]); + } + while (actual_transfer > 0); + return 0; +} + int builtin_server_rx_callback (stream_session_t * s) { - clib_warning ("called..."); + u32 n_written, max_dequeue, max_enqueue, max_transfer; + int actual_transfer; + svm_fifo_t *tx_fifo, *rx_fifo; + builtin_server_main_t *bsm = &builtin_server_main; + session_fifo_event_t evt; + static int serial_number = 0; + u32 thread_index = vlib_get_thread_index (); + + ASSERT (s->thread_index == thread_index); + + rx_fifo = s->server_rx_fifo; + tx_fifo = s->server_tx_fifo; + + ASSERT (rx_fifo->master_thread_index == thread_index); + ASSERT (tx_fifo->master_thread_index == thread_index); + + max_dequeue = svm_fifo_max_dequeue (s->server_rx_fifo); + max_enqueue = svm_fifo_max_enqueue (s->server_tx_fifo); + + if (PREDICT_FALSE (max_dequeue == 0)) + return 0; + + /* Number of bytes we're going to copy */ + max_transfer = (max_dequeue < max_enqueue) ? max_dequeue : max_enqueue; + + /* No space in tx fifo */ + if (PREDICT_FALSE (max_transfer == 0)) + { + /* XXX timeout for session that are stuck */ + + rx_event: + /* Program self-tap to retry */ + if (svm_fifo_set_event (rx_fifo)) + { + unix_shared_memory_queue_t *q; + evt.fifo = rx_fifo; + evt.event_type = FIFO_EVENT_BUILTIN_RX; + evt.event_id = 0; + + q = bsm->vpp_queue[thread_index]; + if (PREDICT_FALSE (q->cursize == q->maxsize)) + clib_warning ("out of event queue space"); + else if (unix_shared_memory_queue_add (q, (u8 *) & evt, 0)) + clib_warning ("failed to enqueue self-tap"); + + if (bsm->rx_retries[thread_index][s->session_index] == 500000) + { + clib_warning ("session stuck: %U", format_stream_session, s, 2); + } + if (bsm->rx_retries[thread_index][s->session_index] < 500001) + bsm->rx_retries[thread_index][s->session_index]++; + } + + return 0; + } + + _vec_len (bsm->rx_buf[thread_index]) = max_transfer; + + actual_transfer = svm_fifo_dequeue_nowait (rx_fifo, max_transfer, + bsm->rx_buf[thread_index]); + ASSERT (actual_transfer == max_transfer); + +// test_bytes (bsm, actual_transfer); + + /* + * Echo back + */ + + n_written = svm_fifo_enqueue_nowait (tx_fifo, actual_transfer, + bsm->rx_buf[thread_index]); + + if (n_written != max_transfer) + clib_warning ("short trout!"); + + if (svm_fifo_set_event (tx_fifo)) + { + /* Fabricate TX event, send to vpp */ + evt.fifo = tx_fifo; + evt.event_type = FIFO_EVENT_APP_TX; + evt.event_id = serial_number++; + + if (unix_shared_memory_queue_add (bsm->vpp_queue[s->thread_index], + (u8 *) & evt, + 0 /* do wait for mutex */ )) + clib_warning ("failed to enqueue tx evt"); + } + + if (PREDICT_FALSE (n_written < max_dequeue)) + goto rx_event; + return 0; } @@ -68,47 +252,163 @@ static session_cb_vft_t builtin_session_cb_vft = { .session_connected_callback = builtin_session_connected_callback, .add_segment_callback = builtin_add_segment_callback, .redirect_connect_callback = builtin_redirect_connect_callback, - .builtin_server_rx_callback = builtin_server_rx_callback + .builtin_server_rx_callback = builtin_server_rx_callback, + .session_reset_callback = builtin_session_reset_callback }; +/* Abuse VPP's input queue */ static int -server_create (vlib_main_t * vm) +create_api_loopback (vlib_main_t * vm) { - vnet_bind_args_t _a, *a = &_a; + builtin_server_main_t *bsm = &builtin_server_main; + api_main_t *am = &api_main; + vl_shmem_hdr_t *shmem_hdr; + + shmem_hdr = am->shmem_hdr; + bsm->vl_input_queue = shmem_hdr->vl_input_queue; + bsm->my_client_index = + vl_api_memclnt_create_internal ("tcp_test_server", bsm->vl_input_queue); + return 0; +} + +static int +server_attach () +{ + builtin_server_main_t *bsm = &builtin_server_main; + u8 segment_name[128]; u64 options[SESSION_OPTIONS_N_OPTIONS]; - char segment_name[128]; + vnet_app_attach_args_t _a, *a = &_a; memset (a, 0, sizeof (*a)); memset (options, 0, sizeof (options)); - a->uri = "tcp://0.0.0.0/80"; - a->api_client_index = ~0; + if (bsm->no_echo) + builtin_session_cb_vft.builtin_server_rx_callback = + builtin_server_rx_callback_no_echo; + else + builtin_session_cb_vft.builtin_server_rx_callback = + builtin_server_rx_callback; + a->api_client_index = bsm->my_client_index; a->session_cb_vft = &builtin_session_cb_vft; a->options = options; - a->options[SESSION_OPTIONS_SEGMENT_SIZE] = 256 << 10; - a->options[SESSION_OPTIONS_RX_FIFO_SIZE] = 64 << 10; - a->options[SESSION_OPTIONS_TX_FIFO_SIZE] = 64 << 10; + a->options[SESSION_OPTIONS_SEGMENT_SIZE] = 512 << 20; + a->options[SESSION_OPTIONS_RX_FIFO_SIZE] = bsm->fifo_size; + a->options[SESSION_OPTIONS_TX_FIFO_SIZE] = bsm->fifo_size; + a->options[APP_OPTIONS_PRIVATE_SEGMENT_COUNT] = bsm->private_segment_count; + a->options[APP_OPTIONS_PRIVATE_SEGMENT_SIZE] = bsm->private_segment_size; + a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = + bsm->prealloc_fifos ? bsm->prealloc_fifos : 1; + + a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_BUILTIN_APP; + a->segment_name = segment_name; a->segment_name_length = ARRAY_LEN (segment_name); + if (vnet_application_attach (a)) + { + clib_warning ("failed to attach server"); + return -1; + } + bsm->app_index = a->app_index; + return 0; +} + +static int +server_listen () +{ + builtin_server_main_t *bsm = &builtin_server_main; + vnet_bind_args_t _a, *a = &_a; + memset (a, 0, sizeof (*a)); + a->app_index = bsm->app_index; + a->uri = bsm->server_uri; return vnet_bind_uri (a); } +static int +server_create (vlib_main_t * vm) +{ + builtin_server_main_t *bsm = &builtin_server_main; + vlib_thread_main_t *vtm = vlib_get_thread_main (); + u32 num_threads; + int i; + + if (bsm->my_client_index == (u32) ~ 0) + { + if (create_api_loopback (vm)) + { + clib_warning ("failed to create api loopback"); + return -1; + } + } + + num_threads = 1 /* main thread */ + vtm->n_threads; + vec_validate (builtin_server_main.vpp_queue, num_threads - 1); + vec_validate (bsm->rx_buf, num_threads - 1); + vec_validate (bsm->rx_retries, num_threads - 1); + + for (i = 0; i < num_threads; i++) + vec_validate (bsm->rx_buf[i], bsm->rcv_buffer_size); + + if (server_attach ()) + { + clib_warning ("failed to attach server"); + return -1; + } + if (server_listen ()) + { + clib_warning ("failed to start listening"); + return -1; + } + return 0; +} + static clib_error_t * -server_create_command_fn (vlib_main_t * vm, - unformat_input_t * input, vlib_cli_command_t * cmd) +server_create_command_fn (vlib_main_t * vm, unformat_input_t * input, + vlib_cli_command_t * cmd) { + builtin_server_main_t *bsm = &builtin_server_main; + u8 server_uri_set = 0; int rv; -#if 0 + u32 tmp; + + bsm->no_echo = 0; + bsm->fifo_size = 64 << 10; + bsm->rcv_buffer_size = 128 << 10; + bsm->prealloc_fifos = 0; + bsm->private_segment_count = 0; + bsm->private_segment_size = 0; + vec_free (bsm->server_uri); + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { - if (unformat (input, "whatever %d", &whatever)) + if (unformat (input, "no-echo")) + bsm->no_echo = 1; + else if (unformat (input, "fifo-size %d", &bsm->fifo_size)) + bsm->fifo_size <<= 10; + else if (unformat (input, "rcv-buf-size %d", &bsm->rcv_buffer_size)) + ; + else if (unformat (input, "prealloc-fifos %d", &bsm->prealloc_fifos)) + ; + else if (unformat (input, "private-segment-count %d", + &bsm->private_segment_count)) ; + else if (unformat (input, "private-segment-size %dm", &tmp)) + bsm->private_segment_size = tmp << 20; + else if (unformat (input, "private-segment-size %dg", &tmp)) + bsm->private_segment_size = tmp << 30; + else if (unformat (input, "private-segment-size %d", &tmp)) + bsm->private_segment_size = tmp; + else if (unformat (input, "uri %s", &bsm->server_uri)) + server_uri_set = 1; else return clib_error_return (0, "unknown input `%U'", format_unformat_error, input); } -#endif + + vnet_session_enable_disable (vm, 1 /* turn on TCP, etc. */ ); + + if (!server_uri_set) + bsm->server_uri = (char *) format (0, "tcp://0.0.0.0/1234%c", 0); rv = server_create (vm); switch (rv) @@ -118,13 +418,31 @@ server_create_command_fn (vlib_main_t * vm, default: return clib_error_return (0, "server_create returned %d", rv); } + return 0; } +/* *INDENT-OFF* */ VLIB_CLI_COMMAND (server_create_command, static) = { -.path = "test server",.short_help = "test server",.function = - server_create_command_fn,}; + .path = "test tcp server", + .short_help = "test tcp server [no echo][fifo-size ] " + "[rcv-buf-size ][prealloc-fifos ]" + "[private-segment-count ][private-segment-size ]" + "[uri ]", + .function = server_create_command_fn, +}; +/* *INDENT-ON* */ + +clib_error_t * +builtin_tcp_server_main_init (vlib_main_t * vm) +{ + builtin_server_main_t *bsm = &builtin_server_main; + bsm->my_client_index = ~0; + return 0; +} + +VLIB_INIT_FUNCTION (builtin_tcp_server_main_init); /* * fd.io coding-style-patch-verification: ON