diff options
| author |   Florin Coras <fcoras@cisco.com> | 2019-07-23 23:54:47 -0700 |
|---|---|---|
| committer |   Dave Wallace <dwallacelf@gmail.com> | 2019-07-26 14:39:30 +0000 |
| commit | 26dd6de91b4d36ac04154c7eb6339684db6684a0 (patch) | |
| tree | 202ff4daf1747dcf97de0efcae7af74be6f6bc64 /src/vnet/session/session_node.c | |
| parent | 038e1dfbdfd0bd785852c364011da0a1d828093e (diff) | |
session tcp: handle rxt and acks as custom events
Type: feature
Control ack generation and retransmissions with session layer scheduler.
Change-Id: Iacdf9f84ab81f44851980aa45a83e75f29be2b7b
Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/session/session_node.c')
| -rw-r--r-- | src/vnet/session/session_node.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/src/vnet/session/session_node.c b/src/vnet/session/session_node.c index 999776f02bd..1bb5cb2717f 100644 --- a/src/vnet/session/session_node.c +++ b/src/vnet/session/session_node.c @@ -618,7 +618,7 @@ session_tx_fifo_read_and_snd_i (session_worker_t * wrk, session_evt_elt_t * elt, 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, max_burst; u32 n_trace, n_bufs_needed = 0, n_left, pbi; session_tx_context_t *ctx = &wrk->ctx; session_main_t *smm = &session_main; @@ -637,6 +637,7 @@ session_tx_fifo_read_and_snd_i (session_worker_t * wrk, next_index = smm->session_type_to_next[ctx->s->session_type]; next0 = next1 = next_index; + max_burst = VLIB_FRAME_SIZE - *n_tx_packets; tp = session_get_transport_proto (ctx->s); ctx->transport_vft = transport_protocol_get_vft (tp); @@ -649,6 +650,20 @@ session_tx_fifo_read_and_snd_i (session_worker_t * wrk, ctx->transport_vft->flush_data (ctx->tc); } + if (ctx->s->flags & SESSION_F_CUSTOM_TX) + { + u32 n_custom_tx; + ctx->s->flags &= ~SESSION_F_CUSTOM_TX; + n_custom_tx = ctx->transport_vft->custom_tx (ctx->tc, max_burst); + *n_tx_packets += n_custom_tx; + max_burst -= n_custom_tx; + if (!max_burst) + { + session_evt_add_old (wrk, elt); + return SESSION_TX_OK; + } + } + ctx->snd_space = transport_connection_snd_space (ctx->tc, wrk->vm->clib_time. last_cpu_time, @@ -664,8 +679,7 @@ session_tx_fifo_read_and_snd_i (session_worker_t * wrk, 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, - peek_data); + session_tx_set_dequeue_params (vm, ctx, max_burst, peek_data); if (PREDICT_FALSE (!ctx->max_len_to_snd)) return SESSION_TX_NO_DATA; @@ -823,7 +837,8 @@ session_tx_fifo_dequeue_internal (session_worker_t * wrk, 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); + return transport_custom_tx (session_get_transport_proto (s), s, + VLIB_FRAME_SIZE - *n_tx_packets); } always_inline session_t * |