/*
- * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
#include <vnet/session/session.h>
#include <vnet/session/application.h>
#include <vnet/session/application_interface.h>
+#include <vnet/session/application_local.h>
#include <vnet/session/session_debug.h>
#include <svm/queue.h>
+static void session_mq_accepted_reply_handler (void *data);
+
+static void
+accepted_notify_cb (void *data, u32 data_len)
+{
+ session_mq_accepted_reply_handler (data);
+}
+
static void
session_mq_accepted_reply_handler (void *data)
{
session_accepted_reply_msg_t *mp = (session_accepted_reply_msg_t *) data;
vnet_disconnect_args_t _a = { 0 }, *a = &_a;
- local_session_t *ls;
- stream_session_t *s;
+ session_state_t old_state;
+ app_worker_t *app_wrk;
+ session_t *s;
/* Server isn't interested, kill the session */
if (mp->retval)
return;
}
- if (session_handle_is_local (mp->handle))
+ /* Mail this back from the main thread. We're not polling in main
+ * thread so we're using other workers for notifications. */
+ if (vlib_num_workers () && vlib_get_thread_index () != 0
+ && session_thread_from_handle (mp->handle) == 0)
{
- ls = application_get_local_session_from_handle (mp->handle);
- if (!ls || ls->app_index != mp->context)
- {
- clib_warning ("server %u doesn't own local handle %llu",
- mp->context, mp->handle);
- return;
- }
- if (application_local_session_connect_notify (ls))
+ vl_api_rpc_call_main_thread (accepted_notify_cb, data,
+ sizeof (session_accepted_reply_msg_t));
+ return;
+ }
+
+ s = session_get_from_handle_if_valid (mp->handle);
+ if (!s)
+ return;
+
+ app_wrk = app_worker_get (s->app_wrk_index);
+ if (app_wrk->app_index != mp->context)
+ {
+ clib_warning ("app doesn't own session");
+ return;
+ }
+
+ if (!session_has_transport (s))
+ {
+ s->session_state = SESSION_STATE_READY;
+ if (ct_session_connect_notify (s))
return;
- ls->session_state = SESSION_STATE_READY;
}
else
{
- s = session_get_from_handle_if_valid (mp->handle);
- if (!s)
- {
- clib_warning ("session doesn't exist");
- return;
- }
- if (s->app_index != mp->context)
- {
- clib_warning ("app doesn't own session");
- return;
- }
+ old_state = s->session_state;
s->session_state = SESSION_STATE_READY;
- if (!svm_fifo_is_empty (s->server_rx_fifo))
+
+ if (!svm_fifo_is_empty_prod (s->rx_fifo))
+ app_worker_lock_and_send_event (app_wrk, s, SESSION_IO_EVT_RX);
+
+ /* Closed while waiting for app to reply. Resend disconnect */
+ if (old_state >= SESSION_STATE_TRANSPORT_CLOSING)
{
- application_t *app;
- app = application_get (s->app_index);
- application_send_event (app, s, FIFO_EVENT_APP_RX);
+ app_worker_close_notify (app_wrk, s);
+ s->session_state = old_state;
+ return;
}
}
}
static void
session_mq_reset_reply_handler (void *data)
{
+ vnet_disconnect_args_t _a = { 0 }, *a = &_a;
session_reset_reply_msg_t *mp;
+ app_worker_t *app_wrk;
+ session_t *s;
application_t *app;
- stream_session_t *s;
u32 index, thread_index;
mp = (session_reset_reply_msg_t *) data;
- app = application_lookup (mp->client_index);
+ app = application_lookup (mp->context);
if (!app)
return;
session_parse_handle (mp->handle, &index, &thread_index);
s = session_get_if_valid (index, thread_index);
- if (s == 0 || app->index != s->app_index)
+
+ /* Session was already closed or already cleaned up */
+ if (!s || s->session_state != SESSION_STATE_TRANSPORT_CLOSING)
+ return;
+
+ app_wrk = app_worker_get (s->app_wrk_index);
+ if (!app_wrk || app_wrk->app_index != app->app_index)
{
- clib_warning ("Invalid session!");
+ clib_warning ("App % does not own handle 0x%lx!", app->app_index,
+ mp->handle);
return;
}
/* This comes as a response to a reset, transport only waiting for
* confirmation to remove connection state, no need to disconnect */
- stream_session_cleanup (s);
+ a->handle = mp->handle;
+ a->app_index = app->app_index;
+ vnet_disconnect_session (a);
}
static void
vnet_disconnect_args_t _a, *a = &_a;
svm_msg_q_msg_t _msg, *msg = &_msg;
session_disconnected_msg_t *mp;
+ app_worker_t *app_wrk;
session_event_t *evt;
- stream_session_t *s;
+ session_t *s;
application_t *app;
int rv = 0;
mp = (session_disconnected_msg_t *) data;
+ if (!(s = session_get_from_handle_if_valid (mp->handle)))
+ {
+ clib_warning ("could not disconnect handle %llu", mp->handle);
+ return;
+ }
+ app_wrk = app_worker_get (s->app_wrk_index);
app = application_lookup (mp->client_index);
- s = session_get_from_handle_if_valid (mp->handle);
- if (!(app && s && s->app_index == app->index))
+ if (!(app_wrk && app && app->app_index == app_wrk->app_index))
{
- clib_warning ("could not disconnect session: %llu app: %u", mp->handle,
- mp->client_index);
+ clib_warning ("could not disconnect session: %llu app: %u",
+ mp->handle, mp->client_index);
return;
}
a->handle = mp->handle;
- a->app_index = app->index;
+ a->app_index = app_wrk->wrk_index;
rv = vnet_disconnect_session (a);
- svm_msg_q_lock_and_alloc_msg_w_ring (app->event_queue,
+ svm_msg_q_lock_and_alloc_msg_w_ring (app_wrk->event_queue,
SESSION_MQ_CTRL_EVT_RING,
SVM_Q_WAIT, msg);
- svm_msg_q_unlock (app->event_queue);
- evt = svm_msg_q_msg_data (app->event_queue, msg);
- memset (evt, 0, sizeof (*evt));
- evt->event_type = SESSION_CTRL_EVT_DISCONNECTED;
+ svm_msg_q_unlock (app_wrk->event_queue);
+ evt = svm_msg_q_msg_data (app_wrk->event_queue, msg);
+ clib_memset (evt, 0, sizeof (*evt));
+ evt->event_type = SESSION_CTRL_EVT_DISCONNECTED_REPLY;
rmp = (session_disconnected_reply_msg_t *) evt->data;
rmp->handle = mp->handle;
rmp->context = mp->context;
rmp->retval = rv;
- svm_msg_q_add (app->event_queue, msg, SVM_Q_WAIT);
+ svm_msg_q_add (app_wrk->event_queue, msg, SVM_Q_WAIT);
}
static void
if (app)
{
a->handle = mp->handle;
- a->app_index = app->index;
+ a->app_index = app->app_index;
vnet_disconnect_session (a);
}
}
+static void
+session_mq_worker_update_handler (void *data)
+{
+ session_worker_update_msg_t *mp = (session_worker_update_msg_t *) data;
+ session_worker_update_reply_msg_t *rmp;
+ svm_msg_q_msg_t _msg, *msg = &_msg;
+ app_worker_t *app_wrk;
+ u32 owner_app_wrk_map;
+ session_event_t *evt;
+ session_t *s;
+ application_t *app;
+
+ app = application_lookup (mp->client_index);
+ if (!app)
+ return;
+ if (!(s = session_get_from_handle_if_valid (mp->handle)))
+ {
+ clib_warning ("invalid handle %llu", mp->handle);
+ return;
+ }
+ app_wrk = app_worker_get (s->app_wrk_index);
+ if (app_wrk->app_index != app->app_index)
+ {
+ clib_warning ("app %u does not own session %llu", app->app_index,
+ mp->handle);
+ return;
+ }
+ owner_app_wrk_map = app_wrk->wrk_map_index;
+ app_wrk = application_get_worker (app, mp->wrk_index);
+
+ /* This needs to come from the new owner */
+ if (mp->req_wrk_index == owner_app_wrk_map)
+ {
+ session_req_worker_update_msg_t *wump;
+
+ svm_msg_q_lock_and_alloc_msg_w_ring (app_wrk->event_queue,
+ SESSION_MQ_CTRL_EVT_RING,
+ SVM_Q_WAIT, msg);
+ svm_msg_q_unlock (app_wrk->event_queue);
+ evt = svm_msg_q_msg_data (app_wrk->event_queue, msg);
+ clib_memset (evt, 0, sizeof (*evt));
+ evt->event_type = SESSION_CTRL_EVT_REQ_WORKER_UPDATE;
+ wump = (session_req_worker_update_msg_t *) evt->data;
+ wump->session_handle = mp->handle;
+ svm_msg_q_add (app_wrk->event_queue, msg, SVM_Q_WAIT);
+ return;
+ }
+
+ app_worker_own_session (app_wrk, s);
+
+ /*
+ * Send reply
+ */
+ svm_msg_q_lock_and_alloc_msg_w_ring (app_wrk->event_queue,
+ SESSION_MQ_CTRL_EVT_RING,
+ SVM_Q_WAIT, msg);
+ svm_msg_q_unlock (app_wrk->event_queue);
+ evt = svm_msg_q_msg_data (app_wrk->event_queue, msg);
+ clib_memset (evt, 0, sizeof (*evt));
+ evt->event_type = SESSION_CTRL_EVT_WORKER_UPDATE_REPLY;
+ rmp = (session_worker_update_reply_msg_t *) evt->data;
+ rmp->handle = mp->handle;
+ rmp->rx_fifo = pointer_to_uword (s->rx_fifo);
+ rmp->tx_fifo = pointer_to_uword (s->tx_fifo);
+ rmp->segment_handle = session_segment_handle (s);
+ svm_msg_q_add (app_wrk->event_queue, msg, SVM_Q_WAIT);
+
+ /*
+ * Retransmit messages that may have been lost
+ */
+ if (s->tx_fifo && !svm_fifo_is_empty (s->tx_fifo))
+ session_send_io_evt_to_thread (s->tx_fifo, SESSION_IO_EVT_TX);
+
+ if (s->rx_fifo && !svm_fifo_is_empty (s->rx_fifo))
+ app_worker_lock_and_send_event (app_wrk, s, SESSION_IO_EVT_RX);
+
+ if (s->session_state >= SESSION_STATE_TRANSPORT_CLOSING)
+ app_worker_close_notify (app_wrk, s);
+}
+
vlib_node_registration_t session_queue_node;
typedef struct
static void
session_tx_trace_frame (vlib_main_t * vm, vlib_node_runtime_t * node,
u32 next_index, u32 * to_next, u16 n_segs,
- stream_session_t * s, u32 n_trace)
+ session_t * s, u32 n_trace)
{
session_queue_trace_t *t;
vlib_buffer_t *b;
session_tx_fifo_chain_tail (vlib_main_t * vm, session_tx_context_t * ctx,
vlib_buffer_t * b, u16 * n_bufs, u8 peek_data)
{
- session_manager_main_t *smm = &session_manager_main;
vlib_buffer_t *chain_b, *prev_b;
u32 chain_bi0, to_deq, left_from_seg;
+ session_worker_t *wrk;
u16 len_to_deq, n_bytes_read;
u8 *data, j;
+ wrk = session_main_get_worker (ctx->s->thread_index);
b->flags |= VLIB_BUFFER_TOTAL_LENGTH_VALID;
b->total_length_not_including_first_buffer = 0;
len_to_deq = clib_min (to_deq, ctx->deq_per_buf);
*n_bufs -= 1;
- chain_bi0 = smm->tx_buffers[ctx->s->thread_index][*n_bufs];
- _vec_len (smm->tx_buffers[ctx->s->thread_index]) = *n_bufs;
-
+ chain_bi0 = wrk->tx_buffers[*n_bufs];
chain_b = vlib_get_buffer (vm, chain_bi0);
chain_b->current_data = 0;
data = vlib_buffer_get_current (chain_b);
if (peek_data)
{
- n_bytes_read = svm_fifo_peek (ctx->s->server_tx_fifo,
+ n_bytes_read = svm_fifo_peek (ctx->s->tx_fifo,
ctx->tx_offset, len_to_deq, data);
ctx->tx_offset += n_bytes_read;
}
{
if (ctx->transport_vft->tx_type == TRANSPORT_TX_DGRAM)
{
- svm_fifo_t *f = ctx->s->server_tx_fifo;
+ svm_fifo_t *f = ctx->s->tx_fifo;
session_dgram_hdr_t *hdr = &ctx->hdr;
u16 deq_now;
deq_now = clib_min (hdr->data_length - hdr->data_offset,
hdr->data_offset += n_bytes_read;
if (hdr->data_offset == hdr->data_length)
- svm_fifo_dequeue_drop (f, hdr->data_length);
+ {
+ u32 offset = hdr->data_length + SESSION_CONN_HDR_LEN;
+ svm_fifo_dequeue_drop (f, offset);
+ }
}
else
- n_bytes_read = svm_fifo_dequeue_nowait (ctx->s->server_tx_fifo,
+ n_bytes_read = svm_fifo_dequeue_nowait (ctx->s->tx_fifo,
len_to_deq, data);
}
ASSERT (n_bytes_read == len_to_deq);
ctx->left_to_snd -= left_from_seg;
}
-always_inline int
-session_output_try_get_buffers (vlib_main_t * vm,
- session_manager_main_t * smm,
- u32 thread_index, u16 * n_bufs, u32 wanted)
-{
- u32 n_alloc;
- vec_validate_aligned (smm->tx_buffers[thread_index], wanted - 1,
- CLIB_CACHE_LINE_BYTES);
- n_alloc = vlib_buffer_alloc (vm, &smm->tx_buffers[thread_index][*n_bufs],
- wanted - *n_bufs);
- *n_bufs += n_alloc;
- _vec_len (smm->tx_buffers[thread_index]) = *n_bufs;
- return n_alloc;
-}
-
always_inline void
session_tx_fill_buffer (vlib_main_t * vm, session_tx_context_t * ctx,
vlib_buffer_t * b, u16 * n_bufs, u8 peek_data)
b->flags = VNET_BUFFER_F_LOCALLY_ORIGINATED;
b->current_data = 0;
- data0 = vlib_buffer_make_headroom (b, MAX_HDRS_LEN);
+ data0 = vlib_buffer_make_headroom (b, TRANSPORT_MAX_HDRS_LEN);
len_to_deq = clib_min (ctx->left_to_snd, ctx->deq_per_first_buf);
if (peek_data)
{
- n_bytes_read = svm_fifo_peek (ctx->s->server_tx_fifo, ctx->tx_offset,
+ n_bytes_read = svm_fifo_peek (ctx->s->tx_fifo, ctx->tx_offset,
len_to_deq, data0);
ASSERT (n_bytes_read > 0);
/* Keep track of progress locally, transport is also supposed to
if (ctx->transport_vft->tx_type == TRANSPORT_TX_DGRAM)
{
session_dgram_hdr_t *hdr = &ctx->hdr;
- svm_fifo_t *f = ctx->s->server_tx_fifo;
+ svm_fifo_t *f = ctx->s->tx_fifo;
u16 deq_now;
u32 offset;
}
else
{
- n_bytes_read = svm_fifo_dequeue_nowait (ctx->s->server_tx_fifo,
+ n_bytes_read = svm_fifo_dequeue_nowait (ctx->s->tx_fifo,
len_to_deq, data0);
ASSERT (n_bytes_read > 0);
}
/* *INDENT-OFF* */
SESSION_EVT_DBG(SESSION_EVT_DEQ, ctx->s, ({
- ed->data[0] = FIFO_EVENT_APP_TX;
+ ed->data[0] = SESSION_IO_EVT_TX;
ed->data[1] = ctx->max_dequeue;
ed->data[2] = len_to_deq;
ed->data[3] = ctx->left_to_snd;
}
always_inline u8
-session_tx_not_ready (stream_session_t * s, u8 peek_data)
+session_tx_not_ready (session_t * s, u8 peek_data)
{
if (peek_data)
{
* session is not ready or closed */
if (s->session_state < SESSION_STATE_READY)
return 1;
- if (s->session_state == SESSION_STATE_CLOSED)
+ if (s->session_state >= SESSION_STATE_TRANSPORT_CLOSED)
return 2;
}
return 0;
u32 max_segs, u8 peek_data)
{
u32 n_bytes_per_buf, n_bytes_per_seg;
- ctx->max_dequeue = svm_fifo_max_dequeue (ctx->s->server_tx_fifo);
+ ctx->max_dequeue = svm_fifo_max_dequeue_cons (ctx->s->tx_fifo);
if (peek_data)
{
/* Offset in rx fifo from where to peek data */
ctx->max_len_to_snd = 0;
return;
}
- svm_fifo_peek (ctx->s->server_tx_fifo, 0, sizeof (ctx->hdr),
+ svm_fifo_peek (ctx->s->tx_fifo, 0, sizeof (ctx->hdr),
(u8 *) & ctx->hdr);
ASSERT (ctx->hdr.data_length > ctx->hdr.data_offset);
ctx->max_dequeue = ctx->hdr.data_length - ctx->hdr.data_offset;
ctx->max_len_to_snd = max_segs * ctx->snd_mss;
}
- n_bytes_per_buf = vlib_buffer_free_list_buffer_size (vm,
- VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
- ASSERT (n_bytes_per_buf > MAX_HDRS_LEN);
- n_bytes_per_seg = MAX_HDRS_LEN + ctx->snd_mss;
+ n_bytes_per_buf = vlib_buffer_get_default_data_size (vm);
+ ASSERT (n_bytes_per_buf > TRANSPORT_MAX_HDRS_LEN);
+ n_bytes_per_seg = TRANSPORT_MAX_HDRS_LEN + ctx->snd_mss;
ctx->n_bufs_per_seg = ceil ((f64) n_bytes_per_seg / n_bytes_per_buf);
ctx->deq_per_buf = clib_min (ctx->snd_mss, n_bytes_per_buf);
ctx->deq_per_first_buf = clib_min (ctx->snd_mss,
- n_bytes_per_buf - MAX_HDRS_LEN);
+ n_bytes_per_buf -
+ TRANSPORT_MAX_HDRS_LEN);
}
always_inline int
session_tx_fifo_read_and_snd_i (vlib_main_t * vm, vlib_node_runtime_t * node,
- session_event_t * e,
- stream_session_t * s, int *n_tx_packets,
+ session_worker_t * wrk,
+ session_event_t * e, int *n_tx_packets,
u8 peek_data)
{
- u32 next_index, next0, next1, *to_next, n_left_to_next;
+ u32 next_index, next0, next1, *to_next, n_left_to_next, n_left, pbi;
u32 n_trace = vlib_get_trace_count (vm, node), n_bufs_needed = 0;
- u32 thread_index = s->thread_index, n_left, pbi;
- session_manager_main_t *smm = &session_manager_main;
- session_tx_context_t *ctx = &smm->ctx[thread_index];
+ session_main_t *smm = &session_main;
+ session_tx_context_t *ctx = &wrk->ctx;
transport_proto_t tp;
vlib_buffer_t *pb;
u16 n_bufs, rv;
- if (PREDICT_FALSE ((rv = session_tx_not_ready (s, peek_data))))
+ if (PREDICT_FALSE ((rv = session_tx_not_ready (ctx->s, peek_data))))
{
if (rv < 2)
- vec_add1 (smm->pending_event_vector[thread_index], *e);
+ vec_add1 (wrk->pending_event_vector, *e);
return SESSION_TX_NO_DATA;
}
- next_index = smm->session_type_to_next[s->session_type];
+ next_index = smm->session_type_to_next[ctx->s->session_type];
next0 = next1 = next_index;
- tp = session_get_transport_proto (s);
- ctx->s = s;
+ tp = session_get_transport_proto (ctx->s);
ctx->transport_vft = transport_protocol_get_vft (tp);
ctx->tc = session_tx_get_transport (ctx, peek_data);
ctx->snd_mss = ctx->transport_vft->send_mss (ctx->tc);
- ctx->snd_space = ctx->transport_vft->send_space (ctx->tc);
+
+ if (PREDICT_FALSE (e->event_type == SESSION_IO_EVT_TX_FLUSH))
+ {
+ if (ctx->transport_vft->flush_data)
+ ctx->transport_vft->flush_data (ctx->tc);
+ }
+
+ ctx->snd_space = transport_connection_snd_space (ctx->tc,
+ vm->clib_time.
+ last_cpu_time,
+ ctx->snd_mss);
if (ctx->snd_space == 0 || ctx->snd_mss == 0)
{
- vec_add1 (smm->pending_event_vector[thread_index], *e);
+ vec_add1 (wrk->pending_event_vector, *e);
return SESSION_TX_NO_DATA;
}
/* Allow enqueuing of a new event */
- svm_fifo_unset_event (s->server_tx_fifo);
+ svm_fifo_unset_event (ctx->s->tx_fifo);
/* Check how much we can pull. */
session_tx_set_dequeue_params (vm, ctx, VLIB_FRAME_SIZE - *n_tx_packets,
if (PREDICT_FALSE (!ctx->max_len_to_snd))
return SESSION_TX_NO_DATA;
- n_bufs = vec_len (smm->tx_buffers[thread_index]);
n_bufs_needed = ctx->n_segs_per_evt * ctx->n_bufs_per_seg;
-
- /*
- * Make sure we have at least one full frame of buffers ready
- */
- if (n_bufs < n_bufs_needed)
+ vec_validate_aligned (wrk->tx_buffers, n_bufs_needed - 1,
+ CLIB_CACHE_LINE_BYTES);
+ n_bufs = vlib_buffer_alloc (vm, wrk->tx_buffers, n_bufs_needed);
+ if (PREDICT_FALSE (n_bufs < n_bufs_needed))
{
- session_output_try_get_buffers (vm, smm, thread_index, &n_bufs,
- ctx->n_bufs_per_seg * VLIB_FRAME_SIZE);
- if (PREDICT_FALSE (n_bufs < n_bufs_needed))
- {
- vec_add1 (smm->pending_event_vector[thread_index], *e);
- return SESSION_TX_NO_BUFFERS;
- }
+ if (n_bufs)
+ vlib_buffer_free (vm, wrk->tx_buffers, n_bufs);
+ vec_add1 (wrk->pending_event_vector, *e);
+ return SESSION_TX_NO_BUFFERS;
}
/*
vlib_buffer_t *b0, *b1;
u32 bi0, bi1;
- pbi = smm->tx_buffers[thread_index][n_bufs - 3];
+ pbi = wrk->tx_buffers[n_bufs - 3];
pb = vlib_get_buffer (vm, pbi);
vlib_prefetch_buffer_header (pb, STORE);
- pbi = smm->tx_buffers[thread_index][n_bufs - 4];
+ pbi = wrk->tx_buffers[n_bufs - 4];
pb = vlib_get_buffer (vm, pbi);
vlib_prefetch_buffer_header (pb, STORE);
- to_next[0] = bi0 = smm->tx_buffers[thread_index][--n_bufs];
- to_next[1] = bi1 = smm->tx_buffers[thread_index][--n_bufs];
+ to_next[0] = bi0 = wrk->tx_buffers[--n_bufs];
+ to_next[1] = bi1 = wrk->tx_buffers[--n_bufs];
b0 = vlib_get_buffer (vm, bi0);
b1 = vlib_get_buffer (vm, bi1);
if (n_left > 1)
{
- pbi = smm->tx_buffers[thread_index][n_bufs - 2];
+ pbi = wrk->tx_buffers[n_bufs - 2];
pb = vlib_get_buffer (vm, pbi);
vlib_prefetch_buffer_header (pb, STORE);
}
- to_next[0] = bi0 = smm->tx_buffers[thread_index][--n_bufs];
+ to_next[0] = bi0 = wrk->tx_buffers[--n_bufs];
b0 = vlib_get_buffer (vm, bi0);
session_tx_fill_buffer (vm, ctx, b0, &n_bufs, peek_data);
if (PREDICT_FALSE (n_trace > 0))
session_tx_trace_frame (vm, node, next_index, to_next,
- ctx->n_segs_per_evt, s, n_trace);
-
- _vec_len (smm->tx_buffers[thread_index]) = n_bufs;
+ ctx->n_segs_per_evt, ctx->s, n_trace);
+ if (PREDICT_FALSE (n_bufs))
+ {
+ clib_warning ("not all buffers consumed");
+ vlib_buffer_free (vm, wrk->tx_buffers, n_bufs);
+ }
*n_tx_packets += ctx->n_segs_per_evt;
+ transport_connection_update_tx_stats (ctx->tc, ctx->max_len_to_snd);
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
/* If we couldn't dequeue all bytes mark as partially read */
ASSERT (ctx->left_to_snd == 0);
if (ctx->max_len_to_snd < ctx->max_dequeue)
- if (svm_fifo_set_event (s->server_tx_fifo))
- vec_add1 (smm->pending_event_vector[thread_index], *e);
+ if (svm_fifo_set_event (ctx->s->tx_fifo))
+ vec_add1 (wrk->pending_event_vector, *e);
if (!peek_data && ctx->transport_vft->tx_type == TRANSPORT_TX_DGRAM)
{
/* Fix dgram pre header */
if (ctx->max_len_to_snd < ctx->max_dequeue)
- svm_fifo_overwrite_head (s->server_tx_fifo, (u8 *) & ctx->hdr,
+ svm_fifo_overwrite_head (ctx->s->tx_fifo, (u8 *) & ctx->hdr,
sizeof (session_dgram_pre_hdr_t));
/* More data needs to be read */
- else if (svm_fifo_max_dequeue (s->server_tx_fifo) > 0)
- if (svm_fifo_set_event (s->server_tx_fifo))
- vec_add1 (smm->pending_event_vector[thread_index], *e);
+ else if (svm_fifo_max_dequeue_cons (ctx->s->tx_fifo) > 0)
+ if (svm_fifo_set_event (ctx->s->tx_fifo))
+ vec_add1 (wrk->pending_event_vector, *e);
}
return SESSION_TX_OK;
}
int
session_tx_fifo_peek_and_snd (vlib_main_t * vm, vlib_node_runtime_t * node,
- session_event_t * e,
- stream_session_t * s, int *n_tx_pkts)
+ session_worker_t * wrk,
+ session_event_t * e, int *n_tx_pkts)
{
- return session_tx_fifo_read_and_snd_i (vm, node, e, s, n_tx_pkts, 1);
+ return session_tx_fifo_read_and_snd_i (vm, node, wrk, e, n_tx_pkts, 1);
}
int
session_tx_fifo_dequeue_and_snd (vlib_main_t * vm, vlib_node_runtime_t * node,
- session_event_t * e,
- stream_session_t * s, int *n_tx_pkts)
+ session_worker_t * wrk,
+ session_event_t * e, int *n_tx_pkts)
{
- return session_tx_fifo_read_and_snd_i (vm, node, e, s, n_tx_pkts, 0);
+ return session_tx_fifo_read_and_snd_i (vm, node, wrk, e, n_tx_pkts, 0);
}
int
session_tx_fifo_dequeue_internal (vlib_main_t * vm,
vlib_node_runtime_t * node,
- session_event_t * e,
- stream_session_t * s, int *n_tx_pkts)
+ session_worker_t * wrk,
+ session_event_t * e, int *n_tx_pkts)
{
- application_t *app;
- app = application_get (s->opaque);
- svm_fifo_unset_event (s->server_tx_fifo);
- return app->cb_fns.builtin_app_tx_callback (s);
+ session_t *s = wrk->ctx.s;
+
+ if (PREDICT_FALSE (s->session_state >= SESSION_STATE_TRANSPORT_CLOSED))
+ return 0;
+ svm_fifo_unset_event (s->tx_fifo);
+ return transport_custom_tx (session_get_transport_proto (s), s);
}
-always_inline stream_session_t *
+always_inline session_t *
session_event_get_session (session_event_t * e, u8 thread_index)
{
- return session_get_if_valid (e->fifo->master_session_index, thread_index);
+ return session_get_if_valid (e->session_index, thread_index);
+}
+
+static void
+session_update_dispatch_period (session_worker_t * wrk, f64 now,
+ u32 thread_index)
+{
+ if (wrk->last_tx_packets)
+ {
+ f64 sample = now - wrk->last_vlib_time;
+ wrk->dispatch_period = (wrk->dispatch_period + sample) * 0.5;
+ }
+ wrk->last_vlib_time = now;
}
static uword
session_queue_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- session_manager_main_t *smm = vnet_get_session_manager_main ();
+ session_main_t *smm = vnet_get_session_main ();
u32 thread_index = vm->thread_index, n_to_dequeue, n_events;
- session_event_t *pending_events, *e;
- session_event_t *fifo_events;
+ session_worker_t *wrk = &smm->wrk[thread_index];
+ session_event_t *e, *fifo_events;
svm_msg_q_msg_t _msg, *msg = &_msg;
f64 now = vlib_time_now (vm);
int n_tx_packets = 0, i, rv;
- application_t *app;
+ app_worker_t *app_wrk;
svm_msg_q_t *mq;
void (*fp) (void *);
/*
* Update transport time
*/
+ session_update_dispatch_period (wrk, now, thread_index);
transport_update_time (now, thread_index);
- /*
- * Get vpp queue events that we can dequeue without blocking
- */
- mq = smm->vpp_event_queues[thread_index];
- fifo_events = smm->free_event_vector[thread_index];
- n_to_dequeue = svm_msg_q_size (mq);
- pending_events = smm->pending_event_vector[thread_index];
-
- if (!n_to_dequeue && !vec_len (pending_events)
- && !vec_len (smm->pending_disconnects[thread_index]))
- return 0;
-
SESSION_EVT_DBG (SESSION_EVT_DEQ_NODE, 0);
- /*
- * If we didn't manage to process previous events try going
- * over them again without dequeuing new ones.
- * XXX: Handle senders to sessions that can't keep up
- */
- if (0 && vec_len (pending_events) >= 100)
- {
- clib_warning ("too many fifo events unsolved");
- goto skip_dequeue;
- }
+ /* Make sure postponed events are handled first */
+ fifo_events = wrk->free_event_vector;
+ vec_append (fifo_events, wrk->postponed_event_vector);
+ _vec_len (wrk->postponed_event_vector) = 0;
- /* See you in the next life, don't be late
+ /* Try to dequeue what is available. Don't wait for lock.
* XXX: we may need priorities here */
- if (svm_msg_q_try_lock (mq))
- return 0;
-
- for (i = 0; i < n_to_dequeue; i++)
+ mq = wrk->vpp_event_queue;
+ n_to_dequeue = svm_msg_q_size (mq);
+ if (n_to_dequeue && svm_msg_q_try_lock (mq) == 0)
{
- vec_add2 (fifo_events, e, 1);
- svm_msg_q_sub_w_lock (mq, msg);
- clib_memcpy (e, svm_msg_q_msg_data (mq, msg), sizeof (*e));
- svm_msg_q_free_msg (mq, msg);
+ for (i = 0; i < n_to_dequeue; i++)
+ {
+ vec_add2 (fifo_events, e, 1);
+ svm_msg_q_sub_w_lock (mq, msg);
+ /* Works because reply messages are smaller than a session evt.
+ * If we ever need to support bigger messages this needs to be
+ * fixed */
+ clib_memcpy_fast (e, svm_msg_q_msg_data (mq, msg), sizeof (*e));
+ svm_msg_q_free_msg (mq, msg);
+ }
+ svm_msg_q_unlock (mq);
}
- svm_msg_q_unlock (mq);
-
- vec_append (fifo_events, pending_events);
- vec_append (fifo_events, smm->pending_disconnects[thread_index]);
+ vec_append (fifo_events, wrk->pending_event_vector);
+ vec_append (fifo_events, wrk->pending_disconnects);
- _vec_len (pending_events) = 0;
- smm->pending_event_vector[thread_index] = pending_events;
- _vec_len (smm->pending_disconnects[thread_index]) = 0;
+ _vec_len (wrk->pending_event_vector) = 0;
+ _vec_len (wrk->pending_disconnects) = 0;
-skip_dequeue:
n_events = vec_len (fifo_events);
+ if (PREDICT_FALSE (!n_events))
+ return 0;
+
for (i = 0; i < n_events; i++)
{
- stream_session_t *s; /* $$$ prefetch 1 ahead maybe */
+ session_t *s; /* $$$ prefetch 1 ahead maybe */
session_event_t *e;
- u32 to_dequeue;
+ u8 need_tx_ntf;
e = &fifo_events[i];
switch (e->event_type)
{
- case FIFO_EVENT_APP_TX:
+ case SESSION_IO_EVT_TX_FLUSH:
+ case SESSION_IO_EVT_TX:
/* Don't try to send more that one frame per dispatch cycle */
if (n_tx_packets == VLIB_FRAME_SIZE)
{
- vec_add1 (smm->pending_event_vector[thread_index], *e);
+ vec_add1 (wrk->postponed_event_vector, *e);
break;
}
s = session_event_get_session (e, thread_index);
if (PREDICT_FALSE (!s))
{
- clib_warning ("It's dead, Jim!");
+ clib_warning ("session was freed!");
continue;
}
- to_dequeue = svm_fifo_max_dequeue (s->server_tx_fifo);
-
+ CLIB_PREFETCH (s->tx_fifo, 2 * CLIB_CACHE_LINE_BYTES, LOAD);
+ wrk->ctx.s = s;
/* Spray packets in per session type frames, since they go to
* different nodes */
- rv = (smm->session_tx_fns[s->session_type]) (vm, node, e, s,
+ rv = (smm->session_tx_fns[s->session_type]) (vm, node, wrk, e,
&n_tx_packets);
if (PREDICT_TRUE (rv == SESSION_TX_OK))
{
- /* Notify app there's tx space if not polling */
- if (PREDICT_FALSE (to_dequeue == s->server_tx_fifo->nitems
- && !svm_fifo_has_event (s->server_tx_fifo)))
+ need_tx_ntf = svm_fifo_needs_tx_ntf (s->tx_fifo,
+ wrk->ctx.max_len_to_snd);
+ if (PREDICT_FALSE (need_tx_ntf))
session_dequeue_notify (s);
}
else if (PREDICT_FALSE (rv == SESSION_TX_NO_BUFFERS))
continue;
}
break;
- case FIFO_EVENT_DISCONNECT:
- /* Make sure stream disconnects run after the pending list is
- * drained */
- s = session_get_from_handle (e->session_handle);
- if (!e->postponed)
- {
- e->postponed = 1;
- vec_add1 (smm->pending_disconnects[thread_index], *e);
- continue;
- }
- /* If tx queue is still not empty, wait */
- if (svm_fifo_max_dequeue (s->server_tx_fifo))
+ case SESSION_IO_EVT_RX:
+ s = session_event_get_session (e, thread_index);
+ if (!s)
+ break;
+ transport_app_rx_evt (session_get_transport_proto (s),
+ s->connection_index, s->thread_index);
+ break;
+ case SESSION_CTRL_EVT_CLOSE:
+ s = session_get_from_handle_if_valid (e->session_handle);
+ if (PREDICT_FALSE (!s))
+ break;
+
+ /* Make sure session disconnects run after the pending list is
+ * drained, i.e., postpone if the first time. If not the first
+ * and the tx queue is still not empty, try to wait for some
+ * dispatch cycles */
+ if (!e->postponed
+ || (e->postponed < 200
+ && svm_fifo_max_dequeue_cons (s->tx_fifo)))
{
- vec_add1 (smm->pending_disconnects[thread_index], *e);
+ e->postponed += 1;
+ vec_add1 (wrk->pending_disconnects, *e);
continue;
}
- stream_session_disconnect_transport (s);
+ session_transport_close (s);
break;
- case FIFO_EVENT_BUILTIN_RX:
+ case SESSION_IO_EVT_BUILTIN_RX:
s = session_event_get_session (e, thread_index);
- if (PREDICT_FALSE (!s))
+ if (PREDICT_FALSE (!s || s->session_state >= SESSION_STATE_CLOSING))
continue;
- svm_fifo_unset_event (s->server_rx_fifo);
- app = application_get (s->app_index);
- app->cb_fns.builtin_app_rx_callback (s);
+ svm_fifo_unset_event (s->rx_fifo);
+ app_wrk = app_worker_get (s->app_wrk_index);
+ app_worker_builtin_rx (app_wrk, s);
break;
- case FIFO_EVENT_RPC:
+ case SESSION_IO_EVT_BUILTIN_TX:
+ s = session_get_from_handle_if_valid (e->session_handle);
+ wrk->ctx.s = s;
+ if (PREDICT_TRUE (s != 0))
+ session_tx_fifo_dequeue_internal (vm, node, wrk, e,
+ &n_tx_packets);
+ break;
+ case SESSION_CTRL_EVT_RPC:
fp = e->rpc_args.fp;
(*fp) (e->rpc_args.arg);
break;
case SESSION_CTRL_EVT_RESET_REPLY:
session_mq_reset_reply_handler (e->data);
break;
+ case SESSION_CTRL_EVT_WORKER_UPDATE:
+ session_mq_worker_update_handler (e->data);
+ break;
default:
clib_warning ("unhandled event type %d", e->event_type);
}
}
_vec_len (fifo_events) = 0;
- smm->free_event_vector[thread_index] = fifo_events;
+ wrk->free_event_vector = fifo_events;
+ wrk->last_tx_packets = n_tx_packets;
vlib_node_increment_counter (vm, session_queue_node.index,
SESSION_QUEUE_ERROR_TX, n_tx_packets);
void
dump_thread_0_event_queue (void)
{
- session_manager_main_t *smm = vnet_get_session_manager_main ();
+ session_main_t *smm = vnet_get_session_main ();
vlib_main_t *vm = &vlib_global_main;
u32 my_thread_index = vm->thread_index;
session_event_t _e, *e = &_e;
svm_msg_q_ring_t *ring;
- stream_session_t *s0;
+ session_t *s0;
svm_msg_q_msg_t *msg;
svm_msg_q_t *mq;
int i, index;
- mq = smm->vpp_event_queues[my_thread_index];
+ mq = smm->wrk[my_thread_index].vpp_event_queue;
index = mq->q->head;
for (i = 0; i < mq->q->cursize; i++)
{
msg = (svm_msg_q_msg_t *) (&mq->q->data[0] + mq->q->elsize * index);
ring = svm_msg_q_ring (mq, msg->ring_index);
- clib_memcpy (e, svm_msg_q_msg_data (mq, msg), ring->elsize);
+ clib_memcpy_fast (e, svm_msg_q_msg_data (mq, msg), ring->elsize);
switch (e->event_type)
{
- case FIFO_EVENT_APP_TX:
+ case SESSION_IO_EVT_TX:
s0 = session_event_get_session (e, my_thread_index);
fformat (stdout, "[%04d] TX session %d\n", i, s0->session_index);
break;
- case FIFO_EVENT_DISCONNECT:
+ case SESSION_CTRL_EVT_CLOSE:
s0 = session_get_from_handle (e->session_handle);
fformat (stdout, "[%04d] disconnect session %d\n", i,
s0->session_index);
break;
- case FIFO_EVENT_BUILTIN_RX:
+ case SESSION_IO_EVT_BUILTIN_RX:
s0 = session_event_get_session (e, my_thread_index);
fformat (stdout, "[%04d] builtin_rx %d\n", i, s0->session_index);
break;
- case FIFO_EVENT_RPC:
+ case SESSION_CTRL_EVT_RPC:
fformat (stdout, "[%04d] RPC call %llx with %llx\n",
- i, (u64) (e->rpc_args.fp), (u64) (e->rpc_args.arg));
+ i, (u64) (uword) (e->rpc_args.fp),
+ (u64) (uword) (e->rpc_args.arg));
break;
default:
static u8
session_node_cmp_event (session_event_t * e, svm_fifo_t * f)
{
- stream_session_t *s;
+ session_t *s;
switch (e->event_type)
{
- case FIFO_EVENT_APP_RX:
- case FIFO_EVENT_APP_TX:
- case FIFO_EVENT_BUILTIN_RX:
- if (e->fifo == f)
+ case SESSION_IO_EVT_RX:
+ case SESSION_IO_EVT_TX:
+ case SESSION_IO_EVT_BUILTIN_RX:
+ if (e->session_index == f->master_session_index)
return 1;
break;
- case FIFO_EVENT_DISCONNECT:
+ case SESSION_CTRL_EVT_CLOSE:
break;
- case FIFO_EVENT_RPC:
+ case SESSION_CTRL_EVT_RPC:
s = session_get_from_handle (e->session_handle);
if (!s)
{
clib_warning ("session has event but doesn't exist!");
break;
}
- if (s->server_rx_fifo == f || s->server_tx_fifo == f)
+ if (s->rx_fifo == f || s->tx_fifo == f)
return 1;
break;
default:
u8
session_node_lookup_fifo_event (svm_fifo_t * f, session_event_t * e)
{
- session_manager_main_t *smm = vnet_get_session_manager_main ();
- svm_msg_q_t *mq;
session_event_t *pending_event_vector, *evt;
+ session_worker_t *wrk;
int i, index, found = 0;
svm_msg_q_msg_t *msg;
svm_msg_q_ring_t *ring;
+ svm_msg_q_t *mq;
u8 thread_index;
ASSERT (e);
thread_index = f->master_thread_index;
+ wrk = session_main_get_worker (thread_index);
+
/*
* Search evt queue
*/
- mq = smm->vpp_event_queues[thread_index];
+ mq = wrk->vpp_event_queue;
index = mq->q->head;
for (i = 0; i < mq->q->cursize; i++)
{
msg = (svm_msg_q_msg_t *) (&mq->q->data[0] + mq->q->elsize * index);
ring = svm_msg_q_ring (mq, msg->ring_index);
- clib_memcpy (e, svm_msg_q_msg_data (mq, msg), ring->elsize);
+ clib_memcpy_fast (e, svm_msg_q_msg_data (mq, msg), ring->elsize);
found = session_node_cmp_event (e, f);
if (found)
return 1;
/*
* Search pending events vector
*/
- pending_event_vector = smm->pending_event_vector[thread_index];
+ pending_event_vector = wrk->pending_event_vector;
vec_foreach (evt, pending_event_vector)
{
found = session_node_cmp_event (evt, f);
if (found)
{
- clib_memcpy (e, evt, sizeof (*evt));
+ clib_memcpy_fast (e, evt, sizeof (*evt));
break;
}
}
};
/* *INDENT-ON* */
+static_always_inline uword
+session_queue_pre_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ session_main_t *sm = &session_main;
+ if (!sm->wrk[0].vpp_event_queue)
+ return 0;
+ return session_queue_node_fn (vm, node, frame);
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (session_queue_pre_input_node) =
+{
+ .function = session_queue_pre_input_inline,
+ .type = VLIB_NODE_TYPE_PRE_INPUT,
+ .name = "session-queue-main",
+ .state = VLIB_NODE_STATE_DISABLED,
+};
+/* *INDENT-ON* */
/*
* fd.io coding-style-patch-verification: ON
Code Review / vpp.git / blobdiff