_(FIFO_FULL, "Packets dropped for lack of rx fifo space") \
_(EVENT_FIFO_FULL, "Events not sent for lack of event fifo space") \
_(API_QUEUE_FULL, "Sessions not created for lack of API queue space") \
-_(NEW_SEG_NO_SPACE, "Created segment, couldn't allocate a fifo pair") \
-_(NO_SPACE, "Couldn't allocate a fifo pair") \
-_(SEG_CREATE, "Couldn't create a new segment")
typedef enum
{
foreach_session_input_error
#undef _
SESSION_N_ERROR,
-} session_error_t;
+} session_input_error_t;
typedef struct session_tx_context_
{
u16 deq_per_first_buf;
u16 deq_per_buf;
u16 n_segs_per_evt;
+ u16 n_bufs_needed;
u8 n_bufs_per_seg;
CLIB_CACHE_LINE_ALIGN_MARK (cacheline1);
session_dgram_hdr_t hdr;
vlib_main_t *vm;
/** Per-proto vector of sessions to enqueue */
- u32 *session_to_enqueue[TRANSPORT_N_PROTO];
+ u32 **session_to_enqueue;
/** Context for session tx */
session_tx_context_t ctx;
/** Worker contexts */
session_worker_t *wrk;
- /** Event queues memfd segment initialized only if so configured */
+ /** Event queues memfd segment */
ssvm_private_t evt_qs_segment;
/** Unique segment name counter */
* Trade memory for speed, for now */
u32 *session_type_to_next;
+ transport_proto_t last_transport_proto_type;
+
/*
* Config parameters
*/
/** Session manager is enabled */
u8 is_enabled;
+
+ /** Session manager initialized (not necessarily enabled) */
+ u8 is_initialized;
+
/** Enable session manager at startup */
u8 session_enable_asap;
+ /** Poll session node in main thread */
+ u8 poll_main;
+
/** vpp fifo event queue configured length */
u32 configured_event_queue_length;
uword session_baseva;
uword session_va_space_size;
uword evt_qs_segment_size;
- u8 evt_qs_use_memfd_seg;
/** Session table size parameters */
u32 configured_v4_session_table_buckets;
extern vlib_node_registration_t session_queue_process_node;
extern vlib_node_registration_t session_queue_pre_input_node;
-#define SESSION_Q_PROCESS_FLUSH_FRAMES 1
-#define SESSION_Q_PROCESS_STOP 2
+typedef enum session_q_process_evt_
+{
+ SESSION_Q_PROCESS_RUN_ON_MAIN = 1,
+ SESSION_Q_PROCESS_STOP
+} session_q_process_evt_t;
+
+#define TRANSPORT_PROTO_INVALID (session_main.last_transport_proto_type + 1)
+#define TRANSPORT_N_PROTOS (session_main.last_transport_proto_type + 1)
static inline session_evt_elt_t *
session_evt_elt_alloc (session_worker_t * wrk)
session_t *session_alloc (u32 thread_index);
void session_free (session_t * s);
void session_free_w_fifos (session_t * s);
+void session_cleanup_half_open (transport_proto_t tp,
+ session_handle_t ho_handle);
u8 session_is_valid (u32 si, u8 thread_index);
always_inline session_t *
session_dgram_hdr_t * hdr,
vlib_buffer_t * b, u8 proto,
u8 queue_event);
-int session_stream_connect_notify (transport_connection_t * tc, u8 is_fail);
+int session_stream_connect_notify (transport_connection_t * tc,
+ session_error_t err);
int session_dgram_connect_notify (transport_connection_t * tc,
u32 old_thread_index,
session_t ** new_session);
int session_stream_accept_notify (transport_connection_t * tc);
void session_transport_closing_notify (transport_connection_t * tc);
void session_transport_delete_notify (transport_connection_t * tc);
+void session_half_open_delete_notify (transport_proto_t tp,
+ session_handle_t ho_handle);
void session_transport_closed_notify (transport_connection_t * tc);
void session_transport_reset_notify (transport_connection_t * tc);
int session_stream_accept (transport_connection_t * tc, u32 listener_index,
u32 thread_index, u8 notify);
+int session_dgram_accept (transport_connection_t * tc, u32 listener_index,
+ u32 thread_index);
+/**
+ * Initialize session layer for given transport proto and ip version
+ *
+ * Allocates per session type (transport proto + ip version) data structures
+ * and adds arc from session queue node to session type output node.
+ *
+ * @param transport_proto transport proto to be registered
+ * @param vft virtual function table for transport
+ * @param is_ip4 flag that indicates if transports uses ipv4
+ * as underlying network layer
+ * @param output_node output node for transport
+ */
void session_register_transport (transport_proto_t transport_proto,
const transport_proto_vft_t * vft, u8 is_ip4,
u32 output_node);
+transport_proto_t session_add_transport_proto (void);
int session_tx_fifo_peek_bytes (transport_connection_t * tc, u8 * buffer,
u32 offset, u32 max_bytes);
u32 session_tx_fifo_dequeue_drop (transport_connection_t * tc, u32 max_bytes);
always_inline void
listen_session_free (session_t * s)
{
+ ASSERT (!s->rx_fifo);
session_free (s);
}
int session_main_flush_enqueue_events (u8 proto, u32 thread_index);
int session_main_flush_all_enqueue_events (u8 transport_proto);
-void session_flush_frames_main_thread (vlib_main_t * vm);
+void session_queue_run_on_main_thread (vlib_main_t * vm);
+/**
+ * Add session node pending buffer with custom node
+ *
+ * @param thread_index worker thread expected to send the buffer
+ * @param bi buffer index
+ * @param next_node next node edge index for buffer. Edge to next node
+ * must exist
+ */
always_inline void
-session_add_pending_tx_buffer (session_type_t st, u32 thread_index, u32 bi)
+session_add_pending_tx_buffer (u32 thread_index, u32 bi, u32 next_node)
{
session_worker_t *wrk = session_main_get_worker (thread_index);
vec_add1 (wrk->pending_tx_buffers, bi);
- vec_add1 (wrk->pending_tx_nexts, session_main.session_type_to_next[st]);
+ vec_add1 (wrk->pending_tx_nexts, next_node);
}
ssvm_private_t *session_main_get_evt_q_segment (void);
void session_node_enable_disable (u8 is_en);
clib_error_t *vnet_session_enable_disable (vlib_main_t * vm, u8 is_en);
+session_t *session_alloc_for_connection (transport_connection_t * tc);
+
#endif /* __included_session_h__ */
/*