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-rw-r--r--src/vnet/session/transport.h48
1 files changed, 42 insertions, 6 deletions
diff --git a/src/vnet/session/transport.h b/src/vnet/session/transport.h
index adc695f5e5a..b2be990947c 100644
--- a/src/vnet/session/transport.h
+++ b/src/vnet/session/transport.h
@@ -32,6 +32,21 @@ typedef struct _transport_options_t
u8 half_open_has_fifos;
} transport_options_t;
+typedef enum transport_snd_flags_
+{
+ TRANSPORT_SND_F_DESCHED = 1 << 0,
+ TRANSPORT_SND_F_POSTPONE = 1 << 1,
+ TRANSPORT_SND_N_FLAGS
+} __clib_packed transport_snd_flags_t;
+
+typedef struct transport_send_params_
+{
+ u32 snd_space;
+ u32 tx_offset;
+ u16 snd_mss;
+ transport_snd_flags_t flags;
+} transport_send_params_t;
+
/*
* Transport protocol virtual function table
*/
@@ -54,9 +69,8 @@ typedef struct _transport_proto_vft
*/
u32 (*push_header) (transport_connection_t * tconn, vlib_buffer_t * b);
- u16 (*send_mss) (transport_connection_t * tc);
- u32 (*send_space) (transport_connection_t * tc);
- u32 (*tx_fifo_offset) (transport_connection_t * tc);
+ int (*send_params) (transport_connection_t * tconn,
+ 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);
@@ -151,16 +165,38 @@ transport_app_rx_evt (transport_proto_t tp, u32 conn_index, u32 thread_index)
}
/**
- * Get maximum tx burst allowed for transport connection
+ * Get send parameters for transport connection
+ *
+ * These include maximum tx burst, mss, tx offset and other flags
+ * transport might want to provide to sessin layer
*
* @param tc transport connection
+ * @param sp send paramaters
+ *
*/
static inline u32
-transport_connection_snd_space (transport_connection_t * tc)
+transport_connection_snd_params (transport_connection_t * tc,
+ transport_send_params_t * sp)
{
- return tp_vfts[tc->proto].send_space (tc);
+ return tp_vfts[tc->proto].send_params (tc, sp);
}
+static inline u8
+transport_connection_is_descheduled (transport_connection_t * tc)
+{
+ if (tc->flags & TRANSPORT_CONNECTION_F_DESCHED)
+ return 1;
+ return 0;
+}
+
+static inline void
+transport_connection_deschedule (transport_connection_t * tc)
+{
+ tc->flags |= TRANSPORT_CONNECTION_F_DESCHED;
+}
+
+void transport_connection_reschedule (transport_connection_t * tc);
+
void transport_register_protocol (transport_proto_t transport_proto,
const transport_proto_vft_t * vft,
fib_protocol_t fib_proto, u32 output_node);