clib_memset (a, 0, sizeof (*a));
a->sep.is_ip4 = mp->is_ip4;
clib_memcpy_fast (&a->sep.ip, &mp->ip, sizeof (mp->ip));
+ if (mp->is_ip4)
+ ip46_address_mask_ip4 (&a->sep.ip);
a->sep.port = mp->port;
a->sep.fib_index = mp->vrf;
a->sep.sw_if_index = ENDPOINT_INVALID_INDEX;
a->sep.transport_proto = mp->proto;
a->sep.peer.fib_index = mp->vrf;
clib_memcpy_fast (&a->sep.peer.ip, &mp->lcl_ip, sizeof (mp->lcl_ip));
+ if (mp->is_ip4)
+ {
+ ip46_address_mask_ip4 (&a->sep.ip);
+ ip46_address_mask_ip4 (&a->sep.peer.ip);
+ }
+ a->sep.peer.port = mp->lcl_port;
a->sep.peer.sw_if_index = ENDPOINT_INVALID_INDEX;
a->sep_ext.parent_handle = mp->parent_handle;
a->sep_ext.ckpair_index = mp->ckpair_index;
a->sep_ext.crypto_engine = mp->crypto_engine;
+ a->sep_ext.transport_flags = mp->flags;
if (mp->hostname_len)
{
vec_validate (a->sep_ext.hostname, mp->hostname_len - 1);
if ((rv = vnet_connect (a)))
{
- clib_warning ("connect returned: %U", format_vnet_api_errno, rv);
+ clib_warning ("connect returned: %U", format_session_error, rv);
app_wrk = application_get_worker (app, mp->wrk_index);
- mq_send_session_connected_cb (app_wrk->wrk_index, mp->context, 0,
- /* is_fail */ 1);
+ mq_send_session_connected_cb (app_wrk->wrk_index, mp->context, 0, rv);
}
vec_free (a->sep_ext.hostname);
{
clib_warning ("connect_uri returned: %d", rv);
app_wrk = application_get_worker (app, 0 /* default wrk only */ );
- mq_send_session_connected_cb (app_wrk->wrk_index, mp->context, 0,
- /* is_fail */ 1);
+ mq_send_session_connected_cb (app_wrk->wrk_index, mp->context, 0, rv);
}
}
session_parse_handle (mp->handle, &index, &thread_index);
s = session_get_if_valid (index, thread_index);
- /* Session was already closed or already cleaned up */
- if (!s || s->session_state != SESSION_STATE_TRANSPORT_CLOSING)
+ /* No session or not the right session */
+ if (!s || s->session_state < SESSION_STATE_TRANSPORT_CLOSING)
return;
app_wrk = app_worker_get (s->app_wrk_index);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
session_queue_trace_t *t = va_arg (*args, session_queue_trace_t *);
- s = format (s, "SESSION_QUEUE: session index %d, server thread index %d",
+ s = format (s, "session index %d thread index %d",
t->session_index, t->server_thread_index);
return s;
}
for (i = 0; i < clib_min (n_trace, n_segs); i++)
{
- b = vlib_get_buffer (vm, to_next[i - n_segs]);
+ b = vlib_get_buffer (vm, to_next[i]);
vlib_trace_buffer (vm, node, next_index, b, 1 /* follow_chain */ );
t = vlib_add_trace (vm, node, b, sizeof (*t));
t->session_index = s->session_index;
b->total_length_not_including_first_buffer = 0;
chain_b = b;
- left_from_seg = clib_min (ctx->snd_mss - b->current_length,
+ left_from_seg = clib_min (ctx->sp.snd_mss - b->current_length,
ctx->left_to_snd);
to_deq = left_from_seg;
for (j = 1; j < ctx->n_bufs_per_seg; j++)
if (peek_data)
{
n_bytes_read = svm_fifo_peek (ctx->s->tx_fifo,
- ctx->tx_offset, len_to_deq, data);
- ctx->tx_offset += n_bytes_read;
+ ctx->sp.tx_offset, len_to_deq, data);
+ ctx->sp.tx_offset += n_bytes_read;
}
else
{
if (peek_data)
{
- n_bytes_read = svm_fifo_peek (ctx->s->tx_fifo, ctx->tx_offset,
+ n_bytes_read = svm_fifo_peek (ctx->s->tx_fifo, ctx->sp.tx_offset,
len_to_deq, data0);
ASSERT (n_bytes_read > 0);
/* Keep track of progress locally, transport is also supposed to
* increment it independently when pushing the header */
- ctx->tx_offset += n_bytes_read;
+ ctx->sp.tx_offset += n_bytes_read;
}
else
{
if (peek_data)
{
/* Offset in rx fifo from where to peek data */
- ctx->tx_offset = ctx->transport_vft->tx_fifo_offset (ctx->tc);
- if (PREDICT_FALSE (ctx->tx_offset >= ctx->max_dequeue))
+ if (PREDICT_FALSE (ctx->sp.tx_offset >= ctx->max_dequeue))
{
ctx->max_len_to_snd = 0;
return;
}
- ctx->max_dequeue -= ctx->tx_offset;
+ ctx->max_dequeue -= ctx->sp.tx_offset;
}
else
{
ASSERT (ctx->max_dequeue > 0);
/* Ensure we're not writing more than transport window allows */
- if (ctx->max_dequeue < ctx->snd_space)
+ if (ctx->max_dequeue < ctx->sp.snd_space)
{
/* Constrained by tx queue. Try to send only fully formed segments */
- ctx->max_len_to_snd =
- (ctx->max_dequeue > ctx->snd_mss) ?
- ctx->max_dequeue - ctx->max_dequeue % ctx->snd_mss : ctx->max_dequeue;
+ ctx->max_len_to_snd = (ctx->max_dequeue > ctx->sp.snd_mss) ?
+ (ctx->max_dequeue - (ctx->max_dequeue % ctx->sp.snd_mss)) :
+ ctx->max_dequeue;
/* TODO Nagle ? */
}
else
{
/* Expectation is that snd_space0 is already a multiple of snd_mss */
- ctx->max_len_to_snd = ctx->snd_space;
+ ctx->max_len_to_snd = ctx->sp.snd_space;
}
/* Check if we're tx constrained by the node */
- ctx->n_segs_per_evt = ceil ((f64) ctx->max_len_to_snd / ctx->snd_mss);
+ ctx->n_segs_per_evt = ceil ((f64) ctx->max_len_to_snd / ctx->sp.snd_mss);
if (ctx->n_segs_per_evt > max_segs)
{
ctx->n_segs_per_evt = max_segs;
- ctx->max_len_to_snd = max_segs * ctx->snd_mss;
+ ctx->max_len_to_snd = max_segs * ctx->sp.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,
+ if (ctx->n_segs_per_evt > 1)
+ {
+ u32 n_bytes_last_seg, n_bufs_last_seg;
+
+ n_bytes_per_seg = TRANSPORT_MAX_HDRS_LEN + ctx->sp.snd_mss;
+ n_bytes_last_seg = TRANSPORT_MAX_HDRS_LEN + ctx->max_len_to_snd
+ - ((ctx->n_segs_per_evt - 1) * ctx->sp.snd_mss);
+ ctx->n_bufs_per_seg = ceil ((f64) n_bytes_per_seg / n_bytes_per_buf);
+ n_bufs_last_seg = ceil ((f64) n_bytes_last_seg / n_bytes_per_buf);
+ ctx->n_bufs_needed = ((ctx->n_segs_per_evt - 1) * ctx->n_bufs_per_seg)
+ + n_bufs_last_seg;
+ }
+ else
+ {
+ n_bytes_per_seg = TRANSPORT_MAX_HDRS_LEN + ctx->max_len_to_snd;
+ ctx->n_bufs_per_seg = ceil ((f64) n_bytes_per_seg / n_bytes_per_buf);
+ ctx->n_bufs_needed = ctx->n_bufs_per_seg;
+ }
+
+ ctx->deq_per_buf = clib_min (ctx->sp.snd_mss, n_bytes_per_buf);
+ ctx->deq_per_first_buf = clib_min (ctx->sp.snd_mss,
n_bytes_per_buf -
TRANSPORT_MAX_HDRS_LEN);
}
+always_inline void
+session_tx_maybe_reschedule (session_worker_t * wrk,
+ session_tx_context_t * ctx,
+ session_evt_elt_t * elt)
+{
+ session_t *s = ctx->s;
+
+ svm_fifo_unset_event (s->tx_fifo);
+ if (svm_fifo_max_dequeue_cons (s->tx_fifo) > ctx->sp.tx_offset)
+ if (svm_fifo_set_event (s->tx_fifo))
+ session_evt_add_head_old (wrk, elt);
+}
+
always_inline int
session_tx_fifo_read_and_snd_i (session_worker_t * wrk,
vlib_node_runtime_t * node,
session_evt_elt_t * elt,
int *n_tx_packets, u8 peek_data)
{
- u32 n_trace, n_bufs_needed = 0, n_left, pbi, next_index, max_burst;
+ u32 n_trace, n_left, pbi, next_index, max_burst;
session_tx_context_t *ctx = &wrk->ctx;
session_main_t *smm = &session_main;
session_event_t *e = &elt->evt;
{
u32 n_custom_tx;
ctx->s->flags &= ~SESSION_F_CUSTOM_TX;
- n_custom_tx = ctx->transport_vft->custom_tx (ctx->tc, max_burst);
+ ctx->sp.max_burst_size = max_burst;
+ n_custom_tx = ctx->transport_vft->custom_tx (ctx->tc, &ctx->sp);
*n_tx_packets += n_custom_tx;
if (PREDICT_FALSE
(ctx->s->session_state >= SESSION_STATE_TRANSPORT_CLOSED))
return SESSION_TX_OK;
max_burst -= n_custom_tx;
- if (!max_burst)
+ if (!max_burst || (ctx->s->flags & SESSION_F_CUSTOM_TX))
{
session_evt_add_old (wrk, elt);
return SESSION_TX_OK;
}
}
- ctx->snd_mss = ctx->transport_vft->send_mss (ctx->tc);
- if (PREDICT_FALSE (ctx->snd_mss == 0))
+ transport_connection_snd_params (ctx->tc, &ctx->sp);
+
+ if (!ctx->sp.snd_space)
{
- session_evt_add_old (wrk, elt);
+ /* If the deschedule flag was set, remove session from scheduler.
+ * Transport is responsible for rescheduling this session. */
+ if (ctx->sp.flags & TRANSPORT_SND_F_DESCHED)
+ transport_connection_deschedule (ctx->tc);
+ /* Request to postpone the session, e.g., zero-wnd and transport
+ * is not currently probing */
+ else if (ctx->sp.flags & TRANSPORT_SND_F_POSTPONE)
+ session_evt_add_old (wrk, elt);
+ /* This flow queue is "empty" so it should be re-evaluated before
+ * the ones that have data to send. */
+ else
+ session_evt_add_head_old (wrk, elt);
+
return SESSION_TX_NO_DATA;
}
- ctx->snd_space = transport_connection_snd_space (ctx->tc, ctx->snd_mss);
-
- /* This flow queue is "empty" so it should be re-evaluated before
- * the ones that have data to send. */
- if (ctx->snd_space == 0)
+ if (transport_connection_is_tx_paced (ctx->tc))
{
- session_evt_add_head_old (wrk, elt);
- return SESSION_TX_NO_DATA;
+ u32 snd_space = transport_connection_tx_pacer_burst (ctx->tc);
+ if (snd_space < TRANSPORT_PACER_MIN_BURST)
+ {
+ session_evt_add_head_old (wrk, elt);
+ return SESSION_TX_NO_DATA;
+ }
+ snd_space = clib_min (ctx->sp.snd_space, snd_space);
+ ctx->sp.snd_space = snd_space >= ctx->sp.snd_mss ?
+ snd_space - snd_space % ctx->sp.snd_mss : snd_space;
}
- /* Allow enqueuing of a new event */
- svm_fifo_unset_event (ctx->s->tx_fifo);
-
/* Check how much we can pull. */
session_tx_set_dequeue_params (vm, ctx, max_burst, peek_data);
if (PREDICT_FALSE (!ctx->max_len_to_snd))
{
- transport_connection_tx_pacer_reset_bucket (ctx->tc);
+ transport_connection_tx_pacer_reset_bucket (ctx->tc, 0);
+ session_tx_maybe_reschedule (wrk, ctx, elt);
return SESSION_TX_NO_DATA;
}
- n_bufs_needed = ctx->n_segs_per_evt * ctx->n_bufs_per_seg;
- vec_validate_aligned (wrk->tx_buffers, n_bufs_needed - 1,
+ vec_validate_aligned (wrk->tx_buffers, ctx->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))
+ n_bufs = vlib_buffer_alloc (vm, wrk->tx_buffers, ctx->n_bufs_needed);
+ if (PREDICT_FALSE (n_bufs < ctx->n_bufs_needed))
{
if (n_bufs)
vlib_buffer_free (vm, wrk->tx_buffers, n_bufs);
SESSION_EVT (SESSION_EVT_DEQ, ctx->s, ctx->max_len_to_snd, ctx->max_dequeue,
ctx->s->tx_fifo->has_event, wrk->last_vlib_time);
- /* If we couldn't dequeue all bytes mark as partially read */
ASSERT (ctx->left_to_snd == 0);
+
+ /* If we couldn't dequeue all bytes reschedule as old flow. Otherwise,
+ * check if application enqueued more data and reschedule accordingly */
if (ctx->max_len_to_snd < ctx->max_dequeue)
- if (svm_fifo_set_event (ctx->s->tx_fifo))
- session_evt_add_old (wrk, elt);
+ session_evt_add_old (wrk, elt);
+ else
+ session_tx_maybe_reschedule (wrk, ctx, elt);
- if (!peek_data
- && ctx->transport_vft->transport_options.tx_type == TRANSPORT_TX_DGRAM)
+ if (!peek_data)
{
/* Fix dgram pre header */
- if (ctx->max_len_to_snd < ctx->max_dequeue)
+ if (ctx->transport_vft->transport_options.tx_type == TRANSPORT_TX_DGRAM
+ && ctx->max_len_to_snd < ctx->max_dequeue)
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_cons (ctx->s->tx_fifo) > 0)
- if (svm_fifo_set_event (ctx->s->tx_fifo))
- session_evt_add_old (wrk, elt);
-
if (svm_fifo_needs_deq_ntf (ctx->s->tx_fifo, ctx->max_len_to_snd))
session_dequeue_notify (ctx->s);
}
int
session_tx_fifo_dequeue_internal (session_worker_t * wrk,
vlib_node_runtime_t * node,
- session_evt_elt_t * e, int *n_tx_packets)
+ session_evt_elt_t * elt, int *n_tx_packets)
{
+ transport_send_params_t *sp = &wrk->ctx.sp;
session_t *s = wrk->ctx.s;
+ u32 n_packets;
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,
- VLIB_FRAME_SIZE - *n_tx_packets);
+
+ /* Clear custom-tx flag used to request reschedule for tx */
+ s->flags &= ~SESSION_F_CUSTOM_TX;
+
+ sp->max_burst_size = clib_min (VLIB_FRAME_SIZE - *n_tx_packets,
+ TRANSPORT_PACER_MAX_BURST_PKTS);
+
+ n_packets = transport_custom_tx (session_get_transport_proto (s), s, sp);
+ *n_tx_packets += n_packets;
+
+ if (s->flags & SESSION_F_CUSTOM_TX)
+ {
+ session_evt_add_old (wrk, elt);
+ }
+ else if (!(sp->flags & TRANSPORT_SND_F_DESCHED))
+ {
+ svm_fifo_unset_event (s->tx_fifo);
+ if (svm_fifo_max_dequeue_cons (s->tx_fifo))
+ if (svm_fifo_set_event (s->tx_fifo))
+ session_evt_add_head_old (wrk, elt);
+ }
+
+ return n_packets;
}
always_inline session_t *
session_evt_ctrl_data_free (wrk, elt);
session_evt_elt_free (wrk, elt);
}
+ SESSION_EVT (SESSION_EVT_COUNTS, CNT_CTRL_EVTS, 1, wrk);
}
always_inline void
case SESSION_IO_EVT_TX:
s = session_event_get_session (e, thread_index);
if (PREDICT_FALSE (!s))
- {
- clib_warning ("session %u was freed!", e->session_index);
- break;
- }
+ break;
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
clib_warning ("unhandled event type %d", e->event_type);
}
+ SESSION_EVT (SESSION_IO_EVT_COUNTS, e->event_type, 1, wrk);
+
/* Regrab elements in case pool moved */
elt = pool_elt_at_index (wrk->event_elts, ei);
if (!clib_llist_elt_is_linked (elt, evt_list))
u32 thread_index = vm->thread_index, n_to_dequeue;
session_worker_t *wrk = &smm->wrk[thread_index];
session_evt_elt_t *elt, *ctrl_he, *new_he, *old_he;
+ clib_llist_index_t ei, next_ei, old_ti;
svm_msg_q_msg_t _msg, *msg = &_msg;
- clib_llist_index_t old_ti;
- int i, n_tx_packets = 0;
+ int i, n_tx_packets;
session_event_t *evt;
svm_msg_q_t *mq;
* Update transport time
*/
transport_update_time (wrk->last_vlib_time, thread_index);
+ n_tx_packets = vec_len (wrk->pending_tx_buffers);
+ SESSION_EVT (SESSION_EVT_DSP_CNTRS, UPDATE_TIME, wrk);
/*
* Dequeue and handle new events
svm_msg_q_free_msg (mq, msg);
}
svm_msg_q_unlock (mq);
+ SESSION_EVT (SESSION_EVT_DSP_CNTRS, MQ_DEQ, wrk, n_to_dequeue);
}
/*
}));
/* *INDENT-ON* */
+ SESSION_EVT (SESSION_EVT_DSP_CNTRS, CTRL_EVTS, wrk);
+
/*
* Handle the new io events.
*/
old_he = pool_elt_at_index (wrk->event_elts, wrk->old_head);
old_ti = clib_llist_prev_index (old_he, evt_list);
- /* *INDENT-OFF* */
- clib_llist_foreach_safe (wrk->event_elts, evt_list, new_he, elt, ({
- session_evt_type_t et;
-
- et = elt->evt.event_type;
- clib_llist_remove (wrk->event_elts, evt_list, elt);
-
- /* Postpone tx events if we can't handle them this dispatch cycle */
- if (n_tx_packets >= VLIB_FRAME_SIZE
- && (et == SESSION_IO_EVT_TX || et == SESSION_IO_EVT_TX_FLUSH))
- {
- clib_llist_add (wrk->event_elts, evt_list, elt, new_he);
- continue;
- }
+ ei = clib_llist_next_index (new_he, evt_list);
+ while (ei != wrk->new_head && n_tx_packets < VLIB_FRAME_SIZE)
+ {
+ elt = pool_elt_at_index (wrk->event_elts, ei);
+ ei = clib_llist_next_index (elt, evt_list);
+ clib_llist_remove (wrk->event_elts, evt_list, elt);
+ session_event_dispatch_io (wrk, node, elt, thread_index, &n_tx_packets);
+ }
- session_event_dispatch_io (wrk, node, elt, thread_index, &n_tx_packets);
- }));
- /* *INDENT-ON* */
+ SESSION_EVT (SESSION_EVT_DSP_CNTRS, NEW_IO_EVTS, wrk);
/*
* Handle the old io events, if we had any prior to processing the new ones
if (old_ti != wrk->old_head)
{
- clib_llist_index_t ei, next_ei;
-
old_he = pool_elt_at_index (wrk->event_elts, wrk->old_head);
ei = clib_llist_next_index (old_he, evt_list);
};
}
+ SESSION_EVT (SESSION_EVT_DSP_CNTRS, OLD_IO_EVTS, wrk);
+
if (vec_len (wrk->pending_tx_buffers))
session_flush_pending_tx_buffers (wrk, node);
VLIB_MAIN_LOOP_EXIT_FUNCTION (session_queue_exit);
+static uword
+session_queue_run_on_main (vlib_main_t * vm)
+{
+ vlib_node_runtime_t *node;
+
+ node = vlib_node_get_runtime (vm, session_queue_node.index);
+ return session_queue_node_fn (vm, node, 0);
+}
+
static uword
session_queue_process (vlib_main_t * vm, vlib_node_runtime_t * rt,
vlib_frame_t * f)
{
- f64 now, timeout = 1.0;
uword *event_data = 0;
+ f64 timeout = 1.0;
uword event_type;
while (1)
{
vlib_process_wait_for_event_or_clock (vm, timeout);
- now = vlib_time_now (vm);
event_type = vlib_process_get_events (vm, (uword **) & event_data);
switch (event_type)
{
- case SESSION_Q_PROCESS_FLUSH_FRAMES:
- /* Flush the frames by updating all transports times */
- transport_update_time (now, 0);
+ case SESSION_Q_PROCESS_RUN_ON_MAIN:
+ /* Run session queue node on main thread */
+ session_queue_run_on_main (vm);
break;
case SESSION_Q_PROCESS_STOP:
timeout = 100000.0;
break;
case ~0:
- /* Timed out. Update time for all transports to trigger all
- * outstanding retransmits. */
- transport_update_time (now, 0);
+ /* Timed out. Run on main to ensure all events are handled */
+ session_queue_run_on_main (vm);
break;
}
vec_reset_length (event_data);
session_main_t *sm = &session_main;
if (!sm->wrk[0].vpp_event_queue)
return 0;
+ node = vlib_node_get_runtime (vm, session_queue_node.index);
return session_queue_node_fn (vm, node, frame);
}
Code Review / vpp.git / blobdiff