#define TRANSPORT_PACER_MIN_MSS 1460
#define TRANSPORT_PACER_MIN_BURST TRANSPORT_PACER_MIN_MSS
#define TRANSPORT_PACER_MAX_BURST (43 * TRANSPORT_PACER_MIN_MSS)
+#define TRANSPORT_PACER_MAX_BURST_PKTS 43
+#define TRANSPORT_PACER_BURSTS_PER_RTT 20
#define TRANSPORT_PACER_MIN_IDLE 100
#define TRANSPORT_PACER_IDLE_FACTOR 0.05
typedef struct _transport_options_t
{
+ char *name;
+ char *short_name;
transport_tx_fn_type_t tx_type;
transport_service_type_t service_type;
- 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_
+{
+ 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;
+ u32 bytes_dequeued;
+ };
+ };
+ transport_snd_flags_t flags;
+} transport_send_params_t;
+
/*
* Transport protocol virtual function table
*/
-/* *INDENT-OFF* */
typedef struct _transport_proto_vft
{
/*
* Setup
*/
- u32 (*start_listen) (u32 session_index, transport_endpoint_t * lcl);
+ u32 (*start_listen) (u32 session_index, transport_endpoint_cfg_t *lcl);
u32 (*stop_listen) (u32 conn_index);
int (*connect) (transport_endpoint_cfg_t * rmt);
+ void (*half_close) (u32 conn_index, u32 thread_index);
void (*close) (u32 conn_index, u32 thread_index);
void (*reset) (u32 conn_index, u32 thread_index);
void (*cleanup) (u32 conn_index, u32 thread_index);
+ void (*cleanup_ho) (u32 conn_index);
clib_error_t *(*enable) (vlib_main_t * vm, u8 is_en);
/*
* Transmission
*/
- 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);
+ u32 (*push_header) (transport_connection_t *tconn, vlib_buffer_t **b,
+ u32 n_bufs);
+ 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);
+ int (*custom_tx) (void *session, transport_send_params_t *sp);
int (*app_rx_evt) (transport_connection_t *tconn);
/*
u8 *(*format_half_open) (u8 * s, va_list * args);
/*
- * Properties retrieval
+ * Properties retrieval/setting
*/
void (*get_transport_endpoint) (u32 conn_index, u32 thread_index,
transport_endpoint_t *tep, u8 is_lcl);
void (*get_transport_listener_endpoint) (u32 conn_index,
transport_endpoint_t *tep,
u8 is_lcl);
+ int (*attribute) (u32 conn_index, u32 thread_index, u8 is_get,
+ transport_endpt_attr_t *attr);
/*
* Properties
*/
transport_options_t transport_options;
} transport_proto_vft_t;
-/* *INDENT-ON* */
extern transport_proto_vft_t *tp_vfts;
-#define transport_proto_foreach(VAR, BODY) \
-do { \
- for (VAR = 0; VAR < vec_len (tp_vfts); VAR++) \
- if (tp_vfts[VAR].push_header != 0) \
- do { BODY; } while (0); \
-} while (0)
+#define transport_proto_foreach(VAR, VAR_ALLOW_BM) \
+ for (VAR = 0; VAR < vec_len (tp_vfts); VAR++) \
+ if (tp_vfts[VAR].push_header != 0) \
+ if (VAR_ALLOW_BM & (1 << VAR))
int transport_connect (transport_proto_t tp, transport_endpoint_cfg_t * tep);
+void transport_half_close (transport_proto_t tp, u32 conn_index,
+ u8 thread_index);
void transport_close (transport_proto_t tp, u32 conn_index, u8 thread_index);
void transport_reset (transport_proto_t tp, u32 conn_index, u8 thread_index);
u32 transport_start_listen (transport_proto_t tp, u32 session_index,
- transport_endpoint_t * tep);
+ transport_endpoint_cfg_t *tep);
u32 transport_stop_listen (transport_proto_t tp, u32 conn_index);
void transport_cleanup (transport_proto_t tp, u32 conn_index,
u8 thread_index);
+void transport_cleanup_half_open (transport_proto_t tp, u32 conn_index);
void transport_get_endpoint (transport_proto_t tp, u32 conn_index,
u32 thread_index, transport_endpoint_t * tep,
u8 is_lcl);
void transport_get_listener_endpoint (transport_proto_t tp, u32 conn_index,
transport_endpoint_t * tep, u8 is_lcl);
+int transport_connection_attribute (transport_proto_t tp, u32 conn_index,
+ u8 thread_index, u8 is_get,
+ transport_endpt_attr_t *attr);
static inline transport_connection_t *
transport_get_connection (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
}
/**
- * 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_params (tc, sp);
+}
+
+static inline u8
+transport_connection_is_descheduled (transport_connection_t * tc)
+{
+ return ((tc->flags & TRANSPORT_CONNECTION_F_DESCHED) ? 1 : 0);
+}
+
+static inline void
+transport_connection_deschedule (transport_connection_t * tc)
+{
+ tc->flags |= TRANSPORT_CONNECTION_F_DESCHED;
+}
+
+static inline u8
+transport_connection_is_cless (transport_connection_t * tc)
{
- return tp_vfts[tc->proto].send_space (tc);
+ return ((tc->flags & TRANSPORT_CONNECTION_F_CLESS) ? 1 : 0);
}
+void transport_connection_reschedule (transport_connection_t * tc);
+void transport_fifos_init_ooo (transport_connection_t * tc);
+
+/**
+ * Register transport virtual function table.
+ *
+ * @param transport_proto - transport protocol type (i.e., TCP, UDP ..)
+ * @param vft - virtual function table for transport proto
+ * @param fib_proto - network layer protocol
+ * @param output_node - output node index that session layer will hand off
+ * buffers to, for requested fib proto
+ */
void transport_register_protocol (transport_proto_t transport_proto,
const transport_proto_vft_t * vft,
fib_protocol_t fib_proto, u32 output_node);
+transport_proto_t
+transport_register_new_protocol (const transport_proto_vft_t * vft,
+ fib_protocol_t fib_proto, u32 output_node);
transport_proto_vft_t *transport_protocol_get_vft (transport_proto_t tp);
void transport_update_time (clib_time_type_t time_now, u8 thread_index);
-int transport_alloc_local_port (u8 proto, ip46_address_t * ip);
-int transport_alloc_local_endpoint (u8 proto, transport_endpoint_cfg_t * rmt,
- ip46_address_t * lcl_addr,
- u16 * lcl_port);
-void transport_endpoint_cleanup (u8 proto, ip46_address_t * lcl_ip, u16 port);
+int transport_alloc_local_port (u8 proto, ip46_address_t *ip,
+ transport_endpoint_cfg_t *rmt);
+int transport_alloc_local_endpoint (u8 proto, transport_endpoint_cfg_t *rmt,
+ ip46_address_t *lcl_addr, u16 *lcl_port);
+void transport_share_local_endpoint (u8 proto, ip46_address_t * lcl_ip,
+ u16 port);
+int transport_release_local_endpoint (u8 proto, ip46_address_t *lcl_ip,
+ u16 port);
void transport_enable_disable (vlib_main_t * vm, u8 is_en);
void transport_init (void);
return (tc->flags & TRANSPORT_CONNECTION_F_IS_TX_PACED);
}
+/**
+ * Clear descheduled flag and update pacer if needed
+ *
+ * To add session to scheduler use @ref transport_connection_reschedule
+ */
+always_inline void
+transport_connection_clear_descheduled (transport_connection_t *tc)
+{
+ tc->flags &= ~TRANSPORT_CONNECTION_F_DESCHED;
+ if (transport_connection_is_tx_paced (tc))
+ transport_connection_tx_pacer_reset_bucket (tc, 0 /* bucket */);
+}
+
u8 *format_transport_pacer (u8 * s, va_list * args);
/**
transport_connection_tx_pacer_update_bytes (transport_connection_t * tc,
u32 bytes);
+/**
+ * Request pacer time update
+ *
+ * @param thread_index thread for which time is updated
+ * @param now time now
+ */
+void transport_update_pacer_time (u32 thread_index, clib_time_type_t now);
+
#endif /* SRC_VNET_SESSION_TRANSPORT_H_ */
/*