#include <vnet/session/stream_session.h>
#include <vnet/session/session_lookup.h>
#include <vnet/session/transport_interface.h>
-#include <vlibmemory/unix_shared_memory_queue.h>
#include <vnet/session/session_debug.h>
#include <vnet/session/segment_manager.h>
+#include <svm/queue.h>
#define HALF_OPEN_LOOKUP_INVALID_VALUE ((u64)~0)
#define INVALID_INDEX ((u32)~0)
#define SESSION_PROXY_LISTENER_INDEX ((u32)~0 - 1)
+#define SESSION_LOCAL_HANDLE_PREFIX 0x7FFFFFFF
/* TODO decide how much since we have pre-data as well */
#define MAX_HDRS_LEN 100 /* Max number of bytes for headers */
_(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")
+_(NO_SPACE, "Couldn't allocate a fifo pair") \
+_(SEG_CREATE, "Couldn't create a new segment")
typedef enum
{
SESSION_N_ERROR,
} session_error_t;
-/* Event queue input node static next indices */
-typedef enum
-{
- SESSION_QUEUE_NEXT_DROP,
- SESSION_QUEUE_NEXT_TCP_IP4_OUTPUT,
- SESSION_QUEUE_NEXT_IP4_LOOKUP,
- SESSION_QUEUE_NEXT_TCP_IP6_OUTPUT,
- SESSION_QUEUE_NEXT_IP6_LOOKUP,
- SESSION_QUEUE_N_NEXT,
-} session_queue_next_t;
-
typedef struct
{
void *fp;
void *arg;
} rpc_args_t;
+typedef u64 session_handle_t;
+
/* *INDENT-OFF* */
typedef CLIB_PACKED (struct {
union
{
svm_fifo_t * fifo;
- u64 session_handle;
+ session_handle_t session_handle;
rpc_args_t rpc_args;
};
u8 event_type;
extern session_fifo_rx_fn session_tx_fifo_peek_and_snd;
extern session_fifo_rx_fn session_tx_fifo_dequeue_and_snd;
+extern session_fifo_rx_fn session_tx_fifo_dequeue_internal;
u8 session_node_lookup_fifo_event (svm_fifo_t * f, session_fifo_event_t * e);
/** Per worker thread session pools */
stream_session_t **sessions;
- /** Per worker-thread count of threads peeking into the session pool */
- u32 *session_peekers;
-
- /** Per worker-thread rw peekers locks */
- clib_spinlock_t *peekers_readers_locks;
- clib_spinlock_t *peekers_write_locks;
+ /** Per worker-thread session pool peekers rw locks */
+ clib_rwlock_t *peekers_rw_locks;
/** Pool of listen sessions. Same type as stream sessions to ease lookups */
- stream_session_t *listen_sessions[SESSION_N_TYPES];
+ stream_session_t **listen_sessions;
/** Per-proto, per-worker enqueue epoch counters */
u32 *current_enqueue_epoch[TRANSPORT_N_PROTO];
session_fifo_event_t **pending_disconnects;
/** vpp fifo event queue */
- unix_shared_memory_queue_t **vpp_event_queues;
+ svm_queue_t **vpp_event_queues;
+
+ /** Event queues memfd segment initialized only if so configured */
+ ssvm_private_t evt_qs_segment;
/** Unique segment name counter */
u32 unique_segment_name_counter;
/** Per transport rx function that can either dequeue or peek */
- session_fifo_rx_fn *session_tx_fns[SESSION_N_TYPES];
+ session_fifo_rx_fn **session_tx_fns;
+
+ /** Per session type output nodes. Could optimize to group nodes by
+ * fib but lookup would then require session type parsing in session node.
+ * Trade memory for speed, for now */
+ u32 *session_type_to_next;
/** Session manager is enabled */
u8 is_enabled;
* Config parameters
*/
- /** session table size parameters */
+ /** Session ssvm segment configs*/
+ uword session_baseva;
+ uword session_va_space_size;
+ u32 evt_qs_segment_size;
+ u8 evt_qs_use_memfd_seg;
+
+ /** Session table size parameters */
u32 configured_v4_session_table_buckets;
u32 configured_v4_session_table_memory;
u32 configured_v4_halfopen_table_buckets;
}
stream_session_t *session_alloc (u32 thread_index);
+int session_alloc_fifos (segment_manager_t * sm, stream_session_t * s);
+void session_free (stream_session_t * s);
always_inline stream_session_t *
session_get (u32 si, u32 thread_index)
return pool_elt_at_index (session_manager_main.sessions[thread_index], si);
}
-always_inline u64
+always_inline session_handle_t
session_handle (stream_session_t * s)
{
return ((u64) s->thread_index << 32) | (u64) s->session_index;
}
always_inline u32
-session_index_from_handle (u64 handle)
+session_index_from_handle (session_handle_t handle)
{
return handle & 0xFFFFFFFF;
}
always_inline u32
-session_thread_from_handle (u64 handle)
+session_thread_from_handle (session_handle_t handle)
{
return handle >> 32;
}
always_inline void
-session_parse_handle (u64 handle, u32 * index, u32 * thread_index)
+session_parse_handle (session_handle_t handle, u32 * index,
+ u32 * thread_index)
{
*index = session_index_from_handle (handle);
*thread_index = session_thread_from_handle (handle);
}
always_inline stream_session_t *
-session_get_from_handle (u64 handle)
+session_get_from_handle (session_handle_t handle)
{
session_manager_main_t *smm = &session_manager_main;
- return
- pool_elt_at_index (smm->sessions[session_thread_from_handle (handle)],
- session_index_from_handle (handle));
+ u32 session_index, thread_index;
+ session_parse_handle (handle, &session_index, &thread_index);
+ return pool_elt_at_index (smm->sessions[thread_index], session_index);
+}
+
+always_inline stream_session_t *
+session_get_from_handle_if_valid (session_handle_t handle)
+{
+ u32 session_index, thread_index;
+ session_parse_handle (handle, &session_index, &thread_index);
+ return session_get_if_valid (session_index, thread_index);
+}
+
+always_inline u8
+session_handle_is_local (session_handle_t handle)
+{
+ if ((handle >> 32) == SESSION_LOCAL_HANDLE_PREFIX)
+ return 1;
+ return 0;
+}
+
+always_inline transport_proto_t
+session_type_transport_proto (session_type_t st)
+{
+ return (st >> 1);
+}
+
+always_inline u8
+session_type_is_ip4 (session_type_t st)
+{
+ return (st & 1);
+}
+
+always_inline transport_proto_t
+session_get_transport_proto (stream_session_t * s)
+{
+ return (s->session_type >> 1);
+}
+
+always_inline fib_protocol_t
+session_get_fib_proto (stream_session_t * s)
+{
+ u8 is_ip4 = s->session_type & 1;
+ return (is_ip4 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6);
+}
+
+always_inline session_type_t
+session_type_from_proto_and_ip (transport_proto_t proto, u8 is_ip4)
+{
+ return (proto << 1 | is_ip4);
+}
+
+always_inline u8
+session_has_transport (stream_session_t * s)
+{
+ return (session_get_transport_proto (s) != TRANSPORT_PROTO_NONE);
}
/**
session_manager_main_t *smm = &session_manager_main;
if (thread_index == vlib_get_thread_index ())
return;
- clib_spinlock_lock_if_init (&smm->peekers_readers_locks[thread_index]);
- smm->session_peekers[thread_index] += 1;
- if (smm->session_peekers[thread_index] == 1)
- clib_spinlock_lock_if_init (&smm->peekers_write_locks[thread_index]);
- clib_spinlock_unlock_if_init (&smm->peekers_readers_locks[thread_index]);
+ clib_rwlock_reader_lock (&smm->peekers_rw_locks[thread_index]);
}
always_inline void
session_manager_main_t *smm = &session_manager_main;
if (thread_index == vlib_get_thread_index ())
return;
- ASSERT (session_manager_main.session_peekers[thread_index] > 0);
- clib_spinlock_lock_if_init (&smm->peekers_readers_locks[thread_index]);
- smm->session_peekers[thread_index] -= 1;
- if (smm->session_peekers[thread_index] == 0)
- clib_spinlock_unlock_if_init (&smm->peekers_write_locks[thread_index]);
- clib_spinlock_unlock_if_init (&smm->peekers_readers_locks[thread_index]);
+ clib_rwlock_reader_unlock (&smm->peekers_rw_locks[thread_index]);
}
/**
u32 stream_session_tx_fifo_max_dequeue (transport_connection_t * tc);
-stream_session_t *session_alloc (u32 thread_index);
int
session_enqueue_stream_connection (transport_connection_t * tc,
vlib_buffer_t * b, u32 offset,
int stream_session_listen (stream_session_t * s, session_endpoint_t * tep);
int stream_session_stop_listen (stream_session_t * s);
void stream_session_disconnect (stream_session_t * s);
+void stream_session_disconnect_transport (stream_session_t * s);
void stream_session_cleanup (stream_session_t * s);
void session_send_session_evt_to_thread (u64 session_handle,
fifo_event_type_t evt_type,
u32 thread_index);
+ssvm_private_t *session_manager_get_evt_q_segment (void);
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 (transport_proto_t transport_proto,
+ const transport_proto_vft_t * vft, u8 is_ip4,
+ u32 output_node);
clib_error_t *vnet_session_enable_disable (vlib_main_t * vm, u8 is_en);
-always_inline unix_shared_memory_queue_t *
+always_inline svm_queue_t *
session_manager_get_vpp_event_queue (u32 thread_index)
{
return session_manager_main.vpp_event_queues[thread_index];
}
always_inline stream_session_t *
-listen_session_get_from_handle (u64 handle)
+listen_session_get_from_handle (session_handle_t handle)
{
session_manager_main_t *smm = &session_manager_main;
stream_session_t *s;
return s;
}
+always_inline void
+listen_session_parse_handle (session_handle_t handle, u32 * type, u32 * index)
+{
+ *type = handle >> 32;
+ *index = handle & 0xFFFFFFFF;
+}
+
always_inline stream_session_t *
listen_session_new (session_type_t type)
{
session_endpoint_t * sep);
always_inline stream_session_t *
-session_manager_get_listener (u8 type, u32 index)
+session_manager_get_listener (u8 session_type, u32 index)
{
- return pool_elt_at_index (session_manager_main.listen_sessions[type],
- index);
-}
-
-always_inline void
-session_manager_set_transport_rx_fn (u8 type, u8 is_peek)
-{
- /* If an offset function is provided, then peek instead of dequeue */
- session_manager_main.session_tx_fns[type] = (is_peek) ?
- session_tx_fifo_peek_and_snd : session_tx_fifo_dequeue_and_snd;
+ return
+ pool_elt_at_index (session_manager_main.listen_sessions[session_type],
+ index);
}
-session_type_t
-session_type_from_proto_and_ip (transport_proto_t proto, u8 is_ip4);
-
always_inline u8
session_manager_is_enabled ()
{
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