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-rw-r--r--src/plugins/quic/quic.c2
-rw-r--r--src/plugins/tlsmbedtls/tls_mbedtls.c5
-rw-r--r--src/plugins/tlsopenssl/tls_openssl.c58
-rw-r--r--src/plugins/tlspicotls/tls_picotls.c5
-rw-r--r--src/vnet/session/application_local.c2
-rw-r--r--src/vnet/session/session_node.c21
-rw-r--r--src/vnet/session/transport.h25
-rw-r--r--src/vnet/tcp/tcp.h2
-rw-r--r--src/vnet/tcp/tcp_output.c11
-rw-r--r--src/vnet/tls/tls.c27
-rw-r--r--src/vnet/tls/tls.h3
11 files changed, 101 insertions, 60 deletions
diff --git a/src/plugins/quic/quic.c b/src/plugins/quic/quic.c
index 4d809446130..de0e4e46892 100644
--- a/src/plugins/quic/quic.c
+++ b/src/plugins/quic/quic.c
@@ -1928,7 +1928,7 @@ quic_custom_app_rx_callback (transport_connection_t * tc)
}
static int
-quic_custom_tx_callback (void *s, u32 max_burst_size)
+quic_custom_tx_callback (void *s, transport_send_params_t * sp)
{
session_t *stream_session = (session_t *) s;
quic_stream_data_t *stream_data;
diff --git a/src/plugins/tlsmbedtls/tls_mbedtls.c b/src/plugins/tlsmbedtls/tls_mbedtls.c
index 8ac736ae6f3..3fccba2ec5a 100644
--- a/src/plugins/tlsmbedtls/tls_mbedtls.c
+++ b/src/plugins/tlsmbedtls/tls_mbedtls.c
@@ -431,7 +431,8 @@ mbedtls_ctx_handshake_rx (tls_ctx_t * ctx)
}
static int
-mbedtls_ctx_write (tls_ctx_t * ctx, session_t * app_session, u32 max_write)
+mbedtls_ctx_write (tls_ctx_t * ctx, session_t * app_session,
+ transport_send_params_t * sp)
{
mbedtls_ctx_t *mc = (mbedtls_ctx_t *) ctx;
u8 thread_index = ctx->c_thread_index;
@@ -446,7 +447,7 @@ mbedtls_ctx_write (tls_ctx_t * ctx, session_t * app_session, u32 max_write)
if (!deq_max)
return 0;
- deq_max = clib_min (deq_max, max_write);
+ deq_max = clib_min (deq_max, sp->max_burst_size);
tls_session = session_get_from_handle (ctx->tls_session_handle);
enq_max = svm_fifo_max_enqueue_prod (tls_session->tx_fifo);
deq_now = clib_min (deq_max, TLS_CHUNK_SIZE);
diff --git a/src/plugins/tlsopenssl/tls_openssl.c b/src/plugins/tlsopenssl/tls_openssl.c
index 935e0147e30..669a503487f 100644
--- a/src/plugins/tlsopenssl/tls_openssl.c
+++ b/src/plugins/tlsopenssl/tls_openssl.c
@@ -110,15 +110,11 @@ openssl_lctx_get (u32 lctx_index)
}
static int
-openssl_read_from_bio_into_fifo (svm_fifo_t * f, BIO * bio)
+openssl_read_from_bio_into_fifo (svm_fifo_t * f, BIO * bio, u32 enq_max)
{
- u32 enq_now, enq_max;
svm_fifo_chunk_t *c;
int read, rv;
-
- enq_max = svm_fifo_max_enqueue_prod (f);
- if (!enq_max)
- return 0;
+ u32 enq_now;
svm_fifo_fill_chunk_list (f);
@@ -256,12 +252,17 @@ openssl_try_handshake_read (openssl_ctx_t * oc, session_t * tls_session)
static int
openssl_try_handshake_write (openssl_ctx_t * oc, session_t * tls_session)
{
- u32 read;
+ u32 read, enq_max;
if (BIO_ctrl_pending (oc->rbio) <= 0)
return 0;
- read = openssl_read_from_bio_into_fifo (tls_session->tx_fifo, oc->rbio);
+ enq_max = svm_fifo_max_enqueue_prod (tls_session->tx_fifo);
+ if (!enq_max)
+ return 0;
+
+ read = openssl_read_from_bio_into_fifo (tls_session->tx_fifo, oc->rbio,
+ enq_max);
if (read)
tls_add_vpp_q_tx_evt (tls_session);
@@ -413,11 +414,12 @@ openssl_confirm_app_close (tls_ctx_t * ctx)
}
static inline int
-openssl_ctx_write (tls_ctx_t * ctx, session_t * app_session, u32 max_write)
+openssl_ctx_write (tls_ctx_t * ctx, session_t * app_session,
+ transport_send_params_t * sp)
{
openssl_ctx_t *oc = (openssl_ctx_t *) ctx;
- int wrote = 0, read, max_buf = 4 * TLS_CHUNK_SIZE, max_space;
- u32 deq_max, to_write;
+ int wrote = 0, read, max_buf = 4 * TLS_CHUNK_SIZE, max_space, n_pending;
+ u32 deq_max, to_write, enq_max;
session_t *tls_session;
svm_fifo_t *f;
@@ -427,7 +429,7 @@ openssl_ctx_write (tls_ctx_t * ctx, session_t * app_session, u32 max_write)
if (!deq_max)
goto check_tls_fifo;
- deq_max = clib_min (deq_max, max_write);
+ deq_max = clib_min (deq_max, sp->max_burst_size);
/* Figure out how much data to write */
max_space = max_buf - BIO_ctrl_pending (oc->rbio);
@@ -443,26 +445,38 @@ openssl_ctx_write (tls_ctx_t * ctx, session_t * app_session, u32 max_write)
check_tls_fifo:
- if (BIO_ctrl_pending (oc->rbio) <= 0)
+ if ((n_pending = BIO_ctrl_pending (oc->rbio)) <= 0)
return wrote;
tls_session = session_get_from_handle (ctx->tls_session_handle);
- read = openssl_read_from_bio_into_fifo (tls_session->tx_fifo, oc->rbio);
+ enq_max = svm_fifo_max_enqueue_prod (tls_session->tx_fifo);
+ if (!enq_max)
+ goto maybe_reschedule;
+
+ read = openssl_read_from_bio_into_fifo (tls_session->tx_fifo, oc->rbio,
+ enq_max);
if (!read)
- {
- /* Request tx reschedule of the app session */
- app_session->flags |= SESSION_F_CUSTOM_TX;
- return wrote;
- }
+ goto maybe_reschedule;
tls_add_vpp_q_tx_evt (tls_session);
- if (BIO_ctrl_pending (oc->rbio) > 0)
- app_session->flags |= SESSION_F_CUSTOM_TX;
- else if (ctx->app_closed)
+ if (PREDICT_FALSE (ctx->app_closed && !BIO_ctrl_pending (oc->rbio)))
openssl_confirm_app_close (ctx);
+maybe_reschedule:
+
+ if (!svm_fifo_max_enqueue_prod (tls_session->tx_fifo))
+ {
+ svm_fifo_add_want_deq_ntf (tls_session->tx_fifo,
+ SVM_FIFO_WANT_DEQ_NOTIF);
+ transport_connection_deschedule (&ctx->connection);
+ sp->flags |= TRANSPORT_SND_F_DESCHED;
+ }
+ else
+ /* Request tx reschedule of the app session */
+ app_session->flags |= SESSION_F_CUSTOM_TX;
+
return wrote;
}
diff --git a/src/plugins/tlspicotls/tls_picotls.c b/src/plugins/tlspicotls/tls_picotls.c
index a9eea333779..a8944bc299a 100644
--- a/src/plugins/tlspicotls/tls_picotls.c
+++ b/src/plugins/tlspicotls/tls_picotls.c
@@ -410,7 +410,8 @@ picotls_content_process (picotls_ctx_t * ptls_ctx, svm_fifo_t * src_fifo,
}
static inline int
-picotls_ctx_write (tls_ctx_t * ctx, session_t * app_session, u32 max_write)
+picotls_ctx_write (tls_ctx_t * ctx, session_t * app_session,
+ transport_send_params_t * sp)
{
picotls_ctx_t *ptls_ctx = (picotls_ctx_t *) ctx;
u32 deq_max, deq_now;
@@ -458,7 +459,7 @@ picotls_ctx_write (tls_ctx_t * ctx, session_t * app_session, u32 max_write)
if (!deq_max)
return deq_max;
- deq_max = clib_min (deq_max, max_write);
+ deq_max = clib_min (deq_max, sp->max_burst_size);
deq_now = clib_min (deq_max, svm_fifo_max_read_chunk (app_tx_fifo));
enq_max = svm_fifo_max_enqueue_prod (tls_tx_fifo);
diff --git a/src/vnet/session/application_local.c b/src/vnet/session/application_local.c
index d54d1119ce6..0e1f6db19fb 100644
--- a/src/vnet/session/application_local.c
+++ b/src/vnet/session/application_local.c
@@ -470,7 +470,7 @@ format_ct_connection_id (u8 * s, va_list * args)
}
static int
-ct_custom_tx (void *session, u32 max_burst_size)
+ct_custom_tx (void *session, transport_send_params_t * sp)
{
session_t *s = (session_t *) session;
if (session_has_transport (s))
diff --git a/src/vnet/session/session_node.c b/src/vnet/session/session_node.c
index 30eca1e6577..f023a95c98c 100644
--- a/src/vnet/session/session_node.c
+++ b/src/vnet/session/session_node.c
@@ -872,7 +872,8 @@ session_tx_fifo_read_and_snd_i (session_worker_t * wrk,
{
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))
@@ -1068,8 +1069,9 @@ session_tx_fifo_dequeue_internal (session_worker_t * wrk,
vlib_node_runtime_t * node,
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, max_pkts;
+ u32 n_packets;
if (PREDICT_FALSE (s->session_state >= SESSION_STATE_TRANSPORT_CLOSED))
return 0;
@@ -1077,18 +1079,17 @@ session_tx_fifo_dequeue_internal (session_worker_t * wrk,
/* Clear custom-tx flag used to request reschedule for tx */
s->flags &= ~SESSION_F_CUSTOM_TX;
- max_pkts = clib_min (VLIB_FRAME_SIZE - *n_tx_packets,
- TRANSPORT_PACER_MAX_BURST_PKTS);
- n_packets = transport_custom_tx (session_get_transport_proto (s), s,
- max_pkts);
- *n_tx_packets -= n_packets;
+ sp->max_burst_size = clib_min (VLIB_FRAME_SIZE - *n_tx_packets,
+ TRANSPORT_PACER_MAX_BURST_PKTS);
- if (svm_fifo_max_dequeue_cons (s->tx_fifo)
- || (s->flags & SESSION_F_CUSTOM_TX))
+ 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
+ else if (!(sp->flags & TRANSPORT_SND_F_DESCHED))
{
svm_fifo_unset_event (s->tx_fifo);
if (svm_fifo_max_dequeue_cons (s->tx_fifo))
diff --git a/src/vnet/session/transport.h b/src/vnet/session/transport.h
index 6dc6984cdf4..eb98032b1e4 100644
--- a/src/vnet/session/transport.h
+++ b/src/vnet/session/transport.h
@@ -44,9 +44,21 @@ typedef enum transport_snd_flags_
typedef struct transport_send_params_
{
- u32 snd_space;
- u32 tx_offset;
- u16 snd_mss;
+ union
+ {
+ /* Used to retrieve snd params from transports */
+ struct
+ {
+ u32 snd_space;
+ u32 tx_offset;
+ u16 snd_mss;
+ };
+ /* Used by custom tx functions */
+ struct
+ {
+ u32 max_burst_size;
+ };
+ };
transport_snd_flags_t flags;
} transport_send_params_t;
@@ -76,7 +88,7 @@ typedef struct _transport_proto_vft
transport_send_params_t *sp);
void (*update_time) (f64 time_now, u8 thread_index);
void (*flush_data) (transport_connection_t *tconn);
- int (*custom_tx) (void *session, u32 max_burst_size);
+ int (*custom_tx) (void *session, transport_send_params_t *sp);
int (*app_rx_evt) (transport_connection_t *tconn);
/*
@@ -152,9 +164,10 @@ transport_get_half_open (transport_proto_t tp, u32 conn_index)
}
static inline int
-transport_custom_tx (transport_proto_t tp, void *s, u32 max_burst_size)
+transport_custom_tx (transport_proto_t tp, void *s,
+ transport_send_params_t * sp)
{
- return tp_vfts[tp].custom_tx (s, max_burst_size);
+ return tp_vfts[tp].custom_tx (s, sp);
}
static inline int
diff --git a/src/vnet/tcp/tcp.h b/src/vnet/tcp/tcp.h
index f8c8cb342fe..f4cc2c88e62 100644
--- a/src/vnet/tcp/tcp.h
+++ b/src/vnet/tcp/tcp.h
@@ -325,7 +325,7 @@ void tcp_reschedule (tcp_connection_t * tc);
fib_node_index_t tcp_lookup_rmt_in_fib (tcp_connection_t * tc);
u32 tcp_session_push_header (transport_connection_t * tconn,
vlib_buffer_t * b);
-int tcp_session_custom_tx (void *conn, u32 max_burst_size);
+int tcp_session_custom_tx (void *conn, transport_send_params_t * sp);
void tcp_connection_timers_init (tcp_connection_t * tc);
void tcp_connection_timers_reset (tcp_connection_t * tc);
diff --git a/src/vnet/tcp/tcp_output.c b/src/vnet/tcp/tcp_output.c
index 095f3602557..b1af535eea7 100644
--- a/src/vnet/tcp/tcp_output.c
+++ b/src/vnet/tcp/tcp_output.c
@@ -2010,7 +2010,7 @@ tcp_do_retransmit (tcp_connection_t * tc, u32 max_burst_size)
}
int
-tcp_session_custom_tx (void *conn, u32 max_burst_size)
+tcp_session_custom_tx (void *conn, transport_send_params_t * sp)
{
tcp_connection_t *tc = (tcp_connection_t *) conn;
u32 n_segs = 0;
@@ -2018,8 +2018,7 @@ tcp_session_custom_tx (void *conn, u32 max_burst_size)
if (tcp_in_cong_recovery (tc) && (tc->flags & TCP_CONN_RXT_PENDING))
{
tc->flags &= ~TCP_CONN_RXT_PENDING;
- n_segs = tcp_do_retransmit (tc, max_burst_size);
- max_burst_size -= n_segs;
+ n_segs = tcp_do_retransmit (tc, sp->max_burst_size);
}
if (!(tc->flags & TCP_CONN_SNDACK))
@@ -2031,13 +2030,13 @@ tcp_session_custom_tx (void *conn, u32 max_burst_size)
if (n_segs && !tc->pending_dupacks)
return n_segs;
- if (!max_burst_size)
+ if (sp->max_burst_size <= n_segs)
{
tcp_program_ack (tc);
- return max_burst_size;
+ return n_segs;
}
- n_segs += tcp_send_acks (tc, max_burst_size);
+ n_segs += tcp_send_acks (tc, sp->max_burst_size - n_segs);
return n_segs;
}
diff --git a/src/vnet/tls/tls.c b/src/vnet/tls/tls.c
index d0552dc6f3b..89dbd36bc44 100644
--- a/src/vnet/tls/tls.c
+++ b/src/vnet/tls/tls.c
@@ -307,13 +307,13 @@ tls_ctx_init_client (tls_ctx_t * ctx)
}
static inline int
-tls_ctx_write (tls_ctx_t * ctx, session_t * app_session, u32 max_burst_size)
+tls_ctx_write (tls_ctx_t * ctx, session_t * app_session,
+ transport_send_params_t * sp)
{
- u32 max_write, n_wrote;
+ u32 n_wrote;
- max_write = max_burst_size * TRANSPORT_PACER_MIN_MSS;
- n_wrote = tls_vfts[ctx->tls_ctx_engine].ctx_write (ctx, app_session,
- max_write);
+ sp->max_burst_size = sp->max_burst_size * TRANSPORT_PACER_MIN_MSS;
+ n_wrote = tls_vfts[ctx->tls_ctx_engine].ctx_write (ctx, app_session, sp);
return n_wrote > 0 ? clib_max (n_wrote / TRANSPORT_PACER_MIN_MSS, 1) : 0;
}
@@ -448,6 +448,17 @@ tls_app_rx_callback (session_t * tls_session)
}
int
+tls_app_tx_callback (session_t * tls_session)
+{
+ tls_ctx_t *ctx;
+
+ ctx = tls_ctx_get (tls_session->opaque);
+ transport_connection_reschedule (&ctx->connection);
+
+ return 0;
+}
+
+int
tls_session_connected_callback (u32 tls_app_index, u32 ho_ctx_index,
session_t * tls_session, session_error_t err)
{
@@ -524,6 +535,7 @@ static session_cb_vft_t tls_app_cb_vft = {
.add_segment_callback = tls_add_segment_callback,
.del_segment_callback = tls_del_segment_callback,
.builtin_app_rx_callback = tls_app_rx_callback,
+ .builtin_app_tx_callback = tls_app_tx_callback,
.session_cleanup_callback = tls_app_session_cleanup,
};
/* *INDENT-ON* */
@@ -712,7 +724,7 @@ tls_listener_get (u32 listener_index)
}
int
-tls_custom_tx_callback (void *session, u32 max_burst_size)
+tls_custom_tx_callback (void *session, transport_send_params_t * sp)
{
session_t *app_session = (session_t *) session;
tls_ctx_t *ctx;
@@ -722,8 +734,7 @@ tls_custom_tx_callback (void *session, u32 max_burst_size)
return 0;
ctx = tls_ctx_get (app_session->connection_index);
- tls_ctx_write (ctx, app_session, max_burst_size);
- return 0;
+ return tls_ctx_write (ctx, app_session, sp);
}
u8 *
diff --git a/src/vnet/tls/tls.h b/src/vnet/tls/tls.h
index 2d09b291aa7..d950fe82629 100644
--- a/src/vnet/tls/tls.h
+++ b/src/vnet/tls/tls.h
@@ -110,7 +110,8 @@ typedef struct tls_engine_vft_
int (*ctx_init_client) (tls_ctx_t * ctx);
int (*ctx_init_server) (tls_ctx_t * ctx);
int (*ctx_read) (tls_ctx_t * ctx, session_t * tls_session);
- int (*ctx_write) (tls_ctx_t * ctx, session_t * app_session, u32 max_write);
+ int (*ctx_write) (tls_ctx_t * ctx, session_t * app_session,
+ transport_send_params_t * sp);
u8 (*ctx_handshake_is_over) (tls_ctx_t * ctx);
int (*ctx_start_listen) (tls_ctx_t * ctx);
int (*ctx_stop_listen) (tls_ctx_t * ctx);