#include <vnet/session/transport.h>
#include <vlibmemory/unix_shared_memory_queue.h>
-#include <vlibmemory/api.h>
-#include <vppinfra/sparse_vec.h>
-#include <svm/svm_fifo_segment.h>
+#include <vnet/session/session_debug.h>
+#include <vnet/session/segment_manager.h>
#define HALF_OPEN_LOOKUP_INVALID_VALUE ((u64)~0)
#define INVALID_INDEX ((u32)~0)
typedef enum
{
- FIFO_EVENT_SERVER_RX,
- FIFO_EVENT_SERVER_TX,
+ FIFO_EVENT_APP_RX,
+ FIFO_EVENT_APP_TX,
FIFO_EVENT_TIMEOUT,
- FIFO_EVENT_SERVER_EXIT,
+ FIFO_EVENT_DISCONNECT,
+ FIFO_EVENT_BUILTIN_RX,
+ FIFO_EVENT_RPC,
} fifo_event_type_t;
-#define foreach_session_input_error \
+#define foreach_session_input_error \
_(NO_SESSION, "No session drops") \
_(NO_LISTENER, "No listener for dst port drops") \
_(ENQUEUED, "Packets pushed into rx fifo") \
SESSION_N_TYPES,
} session_type_t;
+
+session_type_t
+session_type_from_proto_and_ip (transport_proto_t proto, u8 is_ip4);
+
/*
* Application session state
*/
{
SESSION_STATE_LISTENING,
SESSION_STATE_CONNECTING,
+ SESSION_STATE_ACCEPTING,
SESSION_STATE_READY,
SESSION_STATE_CLOSED,
SESSION_STATE_N_STATES,
} stream_session_state_t;
-typedef CLIB_PACKED (struct
- {
- svm_fifo_t * fifo;
- u8 event_type;
- /* $$$$ for event logging */
- u16 event_id;
- u32 enqueue_length;
- }) session_fifo_event_t;
+typedef struct
+{
+ void *fp;
+ void *arg;
+} rpc_args_t;
+
+/* *INDENT-OFF* */
+typedef CLIB_PACKED (struct {
+ union
+ {
+ svm_fifo_t * fifo;
+ u64 session_handle;
+ rpc_args_t rpc_args;
+ };
+ u8 event_type;
+ u16 event_id;
+}) session_fifo_event_t;
+/* *INDENT-ON* */
typedef struct _stream_session_t
{
+ /** fifo pointers. Once allocated, these do not move */
+ svm_fifo_t *server_rx_fifo;
+ svm_fifo_t *server_tx_fifo;
+
/** Type */
u8 session_type;
/** State */
u8 session_state;
+ u8 thread_index;
+
+ /** To avoid n**2 "one event per frame" check */
+ u8 enqueue_epoch;
+
+ /** Pad to a multiple of 8 octets */
+ u8 align_pad[4];
+
+ /** svm segment index where fifos were allocated */
+ u32 svm_segment_index;
+
/** Session index in per_thread pool */
u32 session_index;
/** Transport specific */
u32 connection_index;
- u8 thread_index;
-
/** Application specific */
u32 pid;
- /** fifo pointers. Once allocated, these do not move */
- svm_fifo_t *server_rx_fifo;
- svm_fifo_t *server_tx_fifo;
-
- /** To avoid n**2 "one event per frame" check */
- u8 enqueue_epoch;
-
- /** used during unbind processing */
- u8 is_deleted;
-
/** stream server pool index */
u32 app_index;
- /** svm segment index */
- u32 server_segment_index;
-} stream_session_t;
-
-typedef struct _session_manager
-{
- /** segments mapped by this server */
- u32 *segment_indices;
+ /** Parent listener session if the result of an accept */
+ u32 listener_index;
- /** Session fifo sizes. They are provided for binds and take default
- * values for connects */
- u32 rx_fifo_size;
- u32 tx_fifo_size;
-
- /** Configured additional segment size */
- u32 add_segment_size;
-
- /** Flag that indicates if additional segments should be created */
- u8 add_segment;
-} session_manager_t;
+ /** Opaque, pad to a 64-octet boundary */
+ u64 opaque[2];
+} stream_session_t;
/* Forward definition */
typedef struct _session_manager_main session_manager_main_t;
session_fifo_event_t * e0, stream_session_t * s0,
u32 thread_index, int *n_tx_pkts);
-extern session_fifo_rx_fn session_fifo_rx_peek;
-extern session_fifo_rx_fn session_fifo_rx_dequeue;
+extern session_fifo_rx_fn session_tx_fifo_peek_and_snd;
+extern session_fifo_rx_fn session_tx_fifo_dequeue_and_snd;
+
+u8 session_node_lookup_fifo_event (svm_fifo_t * f, session_fifo_event_t * e);
struct _session_manager_main
{
u32 **tx_buffers;
/** Per worker-thread vector of partially read events */
- session_fifo_event_t **evts_partially_read;
+ session_fifo_event_t **free_event_vector;
/** per-worker active event vectors */
- session_fifo_event_t **fifo_events;
+ session_fifo_event_t **pending_event_vector;
/** vpp fifo event queue */
unix_shared_memory_queue_t **vpp_event_queues;
+ /** vpp fifo event queue configured length */
+ u32 configured_event_queue_length;
+
/** Unique segment name counter */
u32 unique_segment_name_counter;
- /* Connection manager used by incoming connects */
- u32 connect_manager_index[SESSION_N_TYPES];
-
- session_manager_t *session_managers;
-
/** Per transport rx function that can either dequeue or peek */
- session_fifo_rx_fn *session_rx_fns[SESSION_N_TYPES];
+ session_fifo_rx_fn *session_tx_fns[SESSION_N_TYPES];
+ /** Session manager is enabled */
u8 is_enabled;
+ /** Preallocate session config parameter */
+ u32 preallocated_sessions;
+
/* Convenience */
vlib_main_t *vlib_main;
vnet_main_t *vnet_main;
+
+#if SESSION_DBG
+ /**
+ * last event poll time by thread
+ * Debug only. Will cause false cache-line sharing as-is
+ */
+ f64 *last_event_poll_by_thread;
+#endif
+
};
extern session_manager_main_t session_manager_main;
return &session_manager_main;
}
-always_inline session_manager_t *
-session_manager_get (u32 index)
-{
- return pool_elt_at_index (session_manager_main.session_managers, index);
-}
-
-always_inline unix_shared_memory_queue_t *
-session_manager_get_vpp_event_queue (u32 thread_index)
-{
- return session_manager_main.vpp_event_queues[thread_index];
-}
-
-always_inline session_manager_t *
-connects_session_manager_get (session_manager_main_t * smm,
- session_type_t session_type)
-{
- return pool_elt_at_index (smm->session_managers,
- smm->connect_manager_index[session_type]);
-}
-
-void session_manager_get_segment_info (u32 index, u8 ** name, u32 * size);
-int session_manager_flush_enqueue_events (u32 thread_index);
-int
-session_manager_add_first_segment (session_manager_main_t * smm,
- session_manager_t * sm, u32 segment_size,
- u8 ** segment_name);
-void
-session_manager_del (session_manager_main_t * smm, session_manager_t * sm);
-void
-connects_session_manager_init (session_manager_main_t * smm, u8 session_type);
-
/*
* Stream session functions
*/
u16 lcl_port, u8 proto);
stream_session_t *stream_session_lookup4 (ip4_address_t * lcl,
ip4_address_t * rmt, u16 lcl_port,
- u16 rmt_port, u8 proto,
- u32 thread_index);
+ u16 rmt_port, u8 proto);
stream_session_t *stream_session_lookup_listener6 (ip6_address_t * lcl,
u16 lcl_port, u8 proto);
stream_session_t *stream_session_lookup6 (ip6_address_t * lcl,
ip6_address_t * rmt, u16 lcl_port,
- u16 rmt_port, u8, u32 thread_index);
+ u16 rmt_port, u8 proto);
transport_connection_t
- * stream_session_lookup_transport4 (ip4_address_t * lcl,
- ip4_address_t * rmt, u16 lcl_port,
- u16 rmt_port, u8 proto,
- u32 thread_index);
-transport_connection_t
- * stream_session_lookup_transport6 (ip6_address_t * lcl,
- ip6_address_t * rmt, u16 lcl_port,
- u16 rmt_port, u8 proto,
- u32 thread_index);
+ * stream_session_lookup_transport_wt4 (ip4_address_t * lcl,
+ ip4_address_t * rmt, u16 lcl_port,
+ u16 rmt_port, u8 proto,
+ u32 thread_index);
+transport_connection_t *stream_session_lookup_transport4 (ip4_address_t * lcl,
+ ip4_address_t * rmt,
+ u16 lcl_port,
+ u16 rmt_port,
+ u8 proto);
+transport_connection_t *stream_session_lookup_transport_wt6 (ip6_address_t *
+ lcl,
+ ip6_address_t *
+ rmt,
+ u16 lcl_port,
+ u16 rmt_port,
+ u8 proto,
+ u32
+ thread_index);
+transport_connection_t *stream_session_lookup_transport6 (ip6_address_t * lcl,
+ ip6_address_t * rmt,
+ u16 lcl_port,
+ u16 rmt_port,
+ u8 proto);
+
stream_session_t *stream_session_lookup_listener (ip46_address_t * lcl,
u16 lcl_port, u8 proto);
+transport_connection_t
+ * stream_session_lookup_half_open (transport_connection_t * tc);
+void stream_session_table_add_for_tc (transport_connection_t * tc, u64 value);
+int stream_session_table_del_for_tc (transport_connection_t * tc);
always_inline stream_session_t *
stream_session_get_tsi (u64 ti_and_si, u32 thread_index)
ti_and_si & 0xFFFFFFFFULL);
}
+always_inline u8
+stream_session_is_valid (u32 si, u8 thread_index)
+{
+ stream_session_t *s;
+ s = pool_elt_at_index (session_manager_main.sessions[thread_index], si);
+ if (s->thread_index != thread_index || s->session_index != si
+ || s->server_rx_fifo->master_session_index != si
+ || s->server_tx_fifo->master_session_index != si
+ || s->server_rx_fifo->master_thread_index != thread_index
+ || s->server_tx_fifo->master_thread_index != thread_index)
+ return 0;
+ return 1;
+}
+
always_inline stream_session_t *
-stream_session_get (u64 si, u32 thread_index)
+stream_session_get (u32 si, u32 thread_index)
{
+ ASSERT (stream_session_is_valid (si, thread_index));
return pool_elt_at_index (session_manager_main.sessions[thread_index], si);
}
if (pool_is_free_index (session_manager_main.sessions[thread_index], si))
return 0;
+ ASSERT (stream_session_is_valid (si, thread_index));
return pool_elt_at_index (session_manager_main.sessions[thread_index], si);
}
+always_inline u64
+stream_session_handle (stream_session_t * s)
+{
+ return ((u64) s->thread_index << 32) | (u64) s->session_index;
+}
+
+always_inline u32
+stream_session_index_from_handle (u64 handle)
+{
+ return handle & 0xFFFFFFFF;
+}
+
+always_inline u32
+stream_session_thread_from_handle (u64 handle)
+{
+ return handle >> 32;
+}
+
+always_inline void
+stream_session_parse_handle (u64 handle, u32 * index, u32 * thread_index)
+{
+ *index = stream_session_index_from_handle (handle);
+ *thread_index = stream_session_thread_from_handle (handle);
+}
+
+always_inline stream_session_t *
+stream_session_get_from_handle (u64 handle)
+{
+ session_manager_main_t *smm = &session_manager_main;
+ return pool_elt_at_index (smm->sessions[stream_session_thread_from_handle
+ (handle)],
+ stream_session_index_from_handle (handle));
+}
+
always_inline stream_session_t *
stream_session_listener_get (u8 sst, u64 si)
{
}
always_inline u32
-stream_session_max_enqueue (transport_connection_t * tc)
+stream_session_max_rx_enqueue (transport_connection_t * tc)
{
stream_session_t *s = stream_session_get (tc->s_index, tc->thread_index);
return svm_fifo_max_enqueue (s->server_rx_fifo);
}
always_inline u32
-stream_session_fifo_size (transport_connection_t * tc)
+stream_session_rx_fifo_size (transport_connection_t * tc)
{
stream_session_t *s = stream_session_get (tc->s_index, tc->thread_index);
return s->server_rx_fifo->nitems;
}
+u32 stream_session_tx_fifo_max_dequeue (transport_connection_t * tc);
int
-stream_session_enqueue_data (transport_connection_t * tc, u8 * data, u16 len,
- u8 queue_event);
-u32
+stream_session_enqueue_data (transport_connection_t * tc, vlib_buffer_t * b,
+ u32 offset, u8 queue_event, u8 is_in_order);
+int
stream_session_peek_bytes (transport_connection_t * tc, u8 * buffer,
u32 offset, u32 max_bytes);
u32 stream_session_dequeue_drop (transport_connection_t * tc, u32 max_bytes);
-void
-stream_session_connect_notify (transport_connection_t * tc, u8 sst,
- u8 is_fail);
+int stream_session_connect_notify (transport_connection_t * tc, u8 sst,
+ u8 is_fail);
+void stream_session_init_fifos_pointers (transport_connection_t * tc,
+ u32 rx_pointer, u32 tx_pointer);
+
void stream_session_accept_notify (transport_connection_t * tc);
void stream_session_disconnect_notify (transport_connection_t * tc);
void stream_session_delete_notify (transport_connection_t * tc);
int
stream_session_accept (transport_connection_t * tc, u32 listener_index,
u8 sst, u8 notify);
-int stream_session_open (u8 sst, ip46_address_t * addr,
- u16 port_host_byte_order, u32 api_client_index);
+int
+stream_session_open (u32 app_index, session_type_t st,
+ transport_endpoint_t * tep,
+ transport_connection_t ** tc);
+int stream_session_listen (stream_session_t * s, transport_endpoint_t * tep);
+int stream_session_stop_listen (stream_session_t * s);
void stream_session_disconnect (stream_session_t * s);
void stream_session_cleanup (stream_session_t * s);
-int
-stream_session_start_listen (u32 server_index, ip46_address_t * ip, u16 port);
-void stream_session_stop_listen (u32 server_index);
+void session_send_session_evt_to_thread (u64 session_handle,
+ fifo_event_type_t evt_type,
+ u32 thread_index);
u8 *format_stream_session (u8 * s, va_list * args);
+uword unformat_stream_session (unformat_input_t * input, va_list * args);
+uword unformat_transport_connection (unformat_input_t * input,
+ va_list * args);
+
+int
+send_session_connected_callback (u32 app_index, u32 api_context,
+ stream_session_t * s, u8 is_fail);
+
void session_register_transport (u8 type, const transport_proto_vft_t * vft);
transport_proto_vft_t *session_get_transport_vft (u8 type);
clib_error_t *vnet_session_enable_disable (vlib_main_t * vm, u8 is_en);
+always_inline unix_shared_memory_queue_t *
+session_manager_get_vpp_event_queue (u32 thread_index)
+{
+ return session_manager_main.vpp_event_queues[thread_index];
+}
+
+int session_manager_flush_enqueue_events (u32 thread_index);
+
+always_inline u64
+listen_session_get_handle (stream_session_t * s)
+{
+ ASSERT (s->session_state == SESSION_STATE_LISTENING);
+ return ((u64) s->session_type << 32) | s->session_index;
+}
+
+always_inline stream_session_t *
+listen_session_get_from_handle (u64 handle)
+{
+ session_manager_main_t *smm = &session_manager_main;
+ stream_session_t *s;
+ u32 type, index;
+ type = handle >> 32;
+ index = handle & 0xFFFFFFFF;
+
+ if (pool_is_free_index (smm->listen_sessions[type], index))
+ return 0;
+
+ s = pool_elt_at_index (smm->listen_sessions[type], index);
+ ASSERT (s->session_state == SESSION_STATE_LISTENING);
+ return s;
+}
+
+always_inline stream_session_t *
+listen_session_new (session_type_t type)
+{
+ stream_session_t *s;
+ pool_get_aligned (session_manager_main.listen_sessions[type], s,
+ CLIB_CACHE_LINE_BYTES);
+ memset (s, 0, sizeof (*s));
+
+ s->session_type = type;
+ s->session_state = SESSION_STATE_LISTENING;
+ s->session_index = s - session_manager_main.listen_sessions[type];
+
+ return s;
+}
+
+always_inline stream_session_t *
+listen_session_get (session_type_t type, u32 index)
+{
+ return pool_elt_at_index (session_manager_main.listen_sessions[type],
+ index);
+}
+
+always_inline void
+listen_session_del (stream_session_t * s)
+{
+ pool_put (session_manager_main.listen_sessions[s->session_type], s);
+}
+
+always_inline u8
+session_manager_is_enabled ()
+{
+ return session_manager_main.is_enabled == 1;
+}
+
#endif /* __included_session_h__ */
/*