a->sep_ext.ext_cfg = session_mq_get_ext_config (app, mp->ext_config);
if ((rv = vnet_listen (a)))
- clib_warning ("listen returned: %U", format_session_error, rv);
+ session_worker_stat_error_inc (wrk, rv, 1);
app_wrk = application_get_worker (app, mp->wrk_index);
mq_send_session_bound_cb (app_wrk->wrk_index, mp->context, a->handle, rv);
{
vnet_connect_args_t _a, *a = &_a;
app_worker_t *app_wrk;
+ session_worker_t *wrk;
application_t *app;
int rv;
if ((rv = vnet_connect (a)))
{
- clib_warning ("connect returned: %U", format_session_error, rv);
+ wrk = session_main_get_worker (vlib_get_thread_index ());
+ session_worker_stat_error_inc (wrk, rv, 1);
app_wrk = application_get_worker (app, mp->wrk_index);
mq_send_session_connected_cb (app_wrk->wrk_index, mp->context, 0, rv);
}
session_mq_handle_connects_rpc (void *arg)
{
u32 max_connects = 32, n_connects = 0;
- vlib_main_t *vm = vlib_get_main ();
session_evt_elt_t *he, *elt, *next;
- session_worker_t *fwrk, *wrk;
+ session_worker_t *fwrk;
- ASSERT (vlib_get_thread_index () == 0);
+ ASSERT (session_vlib_thread_is_cl_thread ());
/* Pending connects on linked list pertaining to first worker */
- fwrk = session_main_get_worker (1);
+ fwrk = session_main_get_worker (transport_cl_thread ());
if (!fwrk->n_pending_connects)
- goto update_state;
-
- vlib_worker_thread_barrier_sync (vm);
+ return;
he = clib_llist_elt (fwrk->event_elts, fwrk->pending_connects);
elt = clib_llist_next (fwrk->event_elts, evt_list, he);
- /* Avoid holding the barrier for too long */
+ /* Avoid holding the worker for too long */
while (n_connects < max_connects && elt != he)
{
next = clib_llist_next (fwrk->event_elts, evt_list, elt);
/* Decrement with worker barrier */
fwrk->n_pending_connects -= n_connects;
-
- vlib_worker_thread_barrier_release (vm);
-
-update_state:
-
- /* Switch worker to poll mode if it was in interrupt mode and had work or
- * back to interrupt if threshold of loops without a connect is passed.
- * While in poll mode, reprogram connects rpc */
- wrk = session_main_get_worker (0);
- if (wrk->state != SESSION_WRK_POLLING)
+ if (fwrk->n_pending_connects > 0)
{
- if (n_connects)
- {
- session_wrk_set_state (wrk, SESSION_WRK_POLLING);
- vlib_node_set_state (vm, session_queue_node.index,
- VLIB_NODE_STATE_POLLING);
- wrk->no_connect_loops = 0;
- }
- }
- else
- {
- if (!n_connects)
- {
- if (++wrk->no_connect_loops > 1e5)
- {
- session_wrk_set_state (wrk, SESSION_WRK_INTERRUPT);
- vlib_node_set_state (vm, session_queue_node.index,
- VLIB_NODE_STATE_INTERRUPT);
- }
- }
- else
- wrk->no_connect_loops = 0;
- }
-
- if (wrk->state == SESSION_WRK_POLLING)
- {
- elt = session_evt_alloc_ctrl (wrk);
- elt->evt.event_type = SESSION_CTRL_EVT_RPC;
- elt->evt.rpc_args.fp = session_mq_handle_connects_rpc;
+ session_send_rpc_evt_to_thread_force (fwrk->vm->thread_index,
+ session_mq_handle_connects_rpc, 0);
}
}
u32 thread_index = wrk - session_main.wrk;
session_evt_elt_t *he;
- /* No workers, so just deal with the connect now */
- if (PREDICT_FALSE (!thread_index))
+ if (PREDICT_FALSE (thread_index > transport_cl_thread ()))
{
- session_mq_connect_one (session_evt_ctrl_data (wrk, elt));
+ clib_warning ("Connect on wrong thread. Dropping");
return;
}
- if (PREDICT_FALSE (thread_index != 1))
+ /* If on worker, check if main has any pending messages. Avoids reordering
+ * with other control messages that need to be handled by main
+ */
+ if (thread_index)
{
- clib_warning ("Connect on wrong thread. Dropping");
- return;
+ he = clib_llist_elt (wrk->event_elts, wrk->evts_pending_main);
+
+ /* Events pending on main, postpone to avoid reordering */
+ if (!clib_llist_is_empty (wrk->event_elts, evt_list, he))
+ {
+ clib_llist_add_tail (wrk->event_elts, evt_list, elt, he);
+ return;
+ }
}
- /* Add to pending list to be handled by main thread */
+ /* Add to pending list to be handled by first worker */
he = clib_llist_elt (wrk->event_elts, wrk->pending_connects);
clib_llist_add_tail (wrk->event_elts, evt_list, elt, he);
wrk->n_pending_connects += 1;
if (wrk->n_pending_connects == 1)
{
- vlib_node_set_interrupt_pending (vlib_get_main_by_index (0),
- session_queue_node.index);
- session_send_rpc_evt_to_thread (0, session_mq_handle_connects_rpc, 0);
+ session_send_rpc_evt_to_thread_force (thread_index,
+ session_mq_handle_connects_rpc, 0);
}
}
a->app_index = app->app_index;
if ((rv = vnet_connect_uri (a)))
{
- clib_warning ("connect_uri returned: %d", rv);
+ session_worker_stat_error_inc (wrk, rv, 1);
app_wrk = application_get_worker (app, 0 /* default wrk only */ );
mq_send_session_connected_cb (app_wrk->wrk_index, mp->context, 0, rv);
}
a->wrk_map_index = mp->wrk_index;
if ((rv = vnet_unlisten (a)))
- clib_warning ("unlisten returned: %d", rv);
+ session_worker_stat_error_inc (wrk, rv, 1);
app_wrk = application_get_worker (app, a->wrk_map_index);
if (!app_wrk)
session_event_t *evt;
session_t *s;
application_t *app;
+ int rv;
app = application_lookup (mp->client_index);
if (!app)
return;
}
- app_worker_own_session (app_wrk, s);
+ rv = app_worker_own_session (app_wrk, s);
+ if (rv)
+ session_stat_error_inc (rv, 1);
/*
* Send reply
case SESSION_CTRL_EVT_ACCEPTED_REPLY:
session_mq_accepted_reply_handler (fwrk, elt);
break;
+ case SESSION_CTRL_EVT_CONNECT:
+ session_mq_connect_handler (fwrk, elt);
+ break;
default:
clib_warning ("unhandled %u", elt->evt.event_type);
ALWAYS_ASSERT (0);
/* Regrab element in case pool moved */
elt = clib_llist_elt (fwrk->event_elts, ei);
- session_evt_ctrl_data_free (fwrk, elt);
- clib_llist_put (fwrk->event_elts, elt);
+ if (!clib_llist_elt_is_linked (elt, evt_list))
+ {
+ session_evt_ctrl_data_free (fwrk, elt);
+ clib_llist_put (fwrk->event_elts, elt);
+ }
ei = next_ei;
}
if (transport_connection_is_cless (ctx->tc))
{
ip_copy (&ctx->tc->rmt_ip, &hdr->rmt_ip, ctx->tc->is_ip4);
+ ip_copy (&ctx->tc->lcl_ip, &hdr->lcl_ip, ctx->tc->is_ip4);
+ /* Local port assumed to be bound, not overwriting it */
ctx->tc->rmt_port = hdr->rmt_port;
}
hdr->data_offset += n_bytes_read;
return 2;
}
}
+ else
+ {
+ if (s->session_state == SESSION_STATE_TRANSPORT_DELETED)
+ return 2;
+ }
return 0;
}
svm_fifo_peek (ctx->s->tx_fifo, 0, sizeof (ctx->hdr),
(u8 *) & ctx->hdr);
+ /* Zero length dgrams not supported */
+ if (PREDICT_FALSE (ctx->hdr.data_length == 0))
+ {
+ svm_fifo_dequeue_drop (ctx->s->tx_fifo, sizeof (ctx->hdr));
+ ctx->max_len_to_snd = 0;
+ return;
+ }
ASSERT (ctx->hdr.data_length > ctx->hdr.data_offset);
len = ctx->hdr.data_length - ctx->hdr.data_offset;
+ if (ctx->hdr.gso_size)
+ {
+ ctx->sp.snd_mss = clib_min (ctx->sp.snd_mss, ctx->hdr.gso_size);
+ }
+
/* Process multiple dgrams if smaller than min (buf_space, mss).
* This avoids handling multiple dgrams if they require buffer
* chains */
{
svm_fifo_peek (ctx->s->tx_fifo, offset, sizeof (ctx->hdr),
(u8 *) & hdr);
- ASSERT (hdr.data_length > hdr.data_offset);
dgram_len = hdr.data_length - hdr.data_offset;
- if (len + dgram_len > ctx->max_dequeue
- || first_dgram_len != dgram_len)
+ if (offset + sizeof (hdr) + hdr.data_length >
+ ctx->max_dequeue ||
+ first_dgram_len != dgram_len)
break;
+ /* Assert here to allow test above with zero length dgrams */
+ ASSERT (hdr.data_length > hdr.data_offset);
len += dgram_len;
offset += sizeof (hdr) + hdr.data_length;
}
app_wrk = app_worker_get (s->app_wrk_index);
app_worker_builtin_rx (app_wrk, s);
break;
- case SESSION_IO_EVT_BUILTIN_TX:
- s = session_get_from_handle_if_valid (e->session_handle);
+ case SESSION_IO_EVT_TX_MAIN:
+ s = session_get_if_valid (e->session_index, 0 /* main thread */);
+ if (PREDICT_FALSE (!s))
+ break;
wrk->ctx.s = s;
if (PREDICT_TRUE (s != 0))
- session_tx_fifo_dequeue_internal (wrk, node, elt, n_tx_packets);
+ (smm->session_tx_fns[s->session_type]) (wrk, node, elt, n_tx_packets);
break;
default:
clib_warning ("unhandled event type %d", e->event_type);
if (wrk->trans_head == ((wrk->trans_tail + 1) & (wrk->trans_size - 1)))
return 0;
wrk->batch = vlib_dma_batch_new (vm, wrk->config_index);
+ if (!wrk->batch)
+ return 0;
}
/*
Code Review / vpp.git / blobdiff