/*
- * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
#ifndef __included_session_h__
#define __included_session_h__
-#include <vnet/session/stream_session.h>
+#include <vnet/session/session_types.h>
#include <vnet/session/session_lookup.h>
-#include <vnet/session/transport_interface.h>
#include <vnet/session/session_debug.h>
#include <vnet/session/segment_manager.h>
-#include <svm/queue.h>
+#include <svm/message_queue.h>
-#define HALF_OPEN_LOOKUP_INVALID_VALUE ((u64)~0)
-#define INVALID_INDEX ((u32)~0)
#define SESSION_PROXY_LISTENER_INDEX ((u8)~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 */
typedef enum
{
SESSION_CTRL_EVT_DISCONNECTED,
SESSION_CTRL_EVT_DISCONNECTED_REPLY,
SESSION_CTRL_EVT_RESET,
- SESSION_CTRL_EVT_RESET_REPLY
+ SESSION_CTRL_EVT_RESET_REPLY,
+ SESSION_CTRL_EVT_REQ_WORKER_UPDATE,
+ SESSION_CTRL_EVT_WORKER_UPDATE,
+ SESSION_CTRL_EVT_WORKER_UPDATE_REPLY,
} session_evt_type_t;
static inline const char *
void *arg;
} session_rpc_args_t;
-typedef u64 session_handle_t;
-
/* *INDENT-OFF* */
typedef struct
{
typedef struct session_tx_context_
{
CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
- stream_session_t *s;
+ session_t *s;
transport_proto_vft_t *transport_vft;
transport_connection_t *tc;
vlib_buffer_t *b;
session_dgram_hdr_t hdr;
} session_tx_context_t;
-/* Forward definition */
-typedef struct _session_manager_main session_manager_main_t;
-
-typedef int
- (session_fifo_rx_fn) (vlib_main_t * vm, vlib_node_runtime_t * node,
- session_event_t * e0, stream_session_t * s0,
- int *n_tx_pkts);
-
-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_event_t * e);
-
typedef struct session_manager_worker_
{
CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
/** Worker session pool */
- stream_session_t *sessions;
+ session_t *sessions;
/** vpp event message queue for worker */
svm_msg_q_t *vpp_event_queue;
} session_manager_worker_t;
-struct _session_manager_main
+typedef int (session_fifo_rx_fn) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ session_manager_worker_t * wrk,
+ session_event_t * e, int *n_tx_pkts);
+
+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_event_t * e);
+
+typedef struct session_manager_main_
{
/** Worker contexts */
session_manager_worker_t *wrk;
f64 *last_event_poll_by_thread;
#endif
-};
+} session_manager_main_t;
extern session_manager_main_t session_manager_main;
extern vlib_node_registration_t session_queue_node;
#define SESSION_Q_PROCESS_FLUSH_FRAMES 1
#define SESSION_Q_PROCESS_STOP 2
-/*
- * Session manager function
- */
-always_inline session_manager_main_t *
-vnet_get_session_manager_main ()
-{
- return &session_manager_main;
-}
-
-always_inline session_manager_worker_t *
-session_manager_get_worker (u32 thread_index)
-{
- return &session_manager_main.wrk[thread_index];
-}
-
always_inline u8
stream_session_is_valid (u32 si, u8 thread_index)
{
- stream_session_t *s;
+ session_t *s;
s = pool_elt_at_index (session_manager_main.wrk[thread_index].sessions, si);
if (s->thread_index != thread_index || s->session_index != si
/* || s->server_rx_fifo->master_session_index != si
return 1;
}
-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);
-void session_free_w_fifos (stream_session_t * s);
+session_t *session_alloc (u32 thread_index);
+int session_alloc_fifos (segment_manager_t * sm, session_t * s);
+void session_free (session_t * s);
+void session_free_w_fifos (session_t * s);
-always_inline stream_session_t *
+always_inline session_t *
session_get (u32 si, u32 thread_index)
{
ASSERT (stream_session_is_valid (si, thread_index));
si);
}
-always_inline stream_session_t *
+always_inline session_t *
session_get_if_valid (u64 si, u32 thread_index)
{
if (thread_index >= vec_len (session_manager_main.wrk))
si);
}
-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 (session_handle_t handle)
-{
- return handle & 0xFFFFFFFF;
-}
-
-always_inline u32
-session_thread_from_handle (session_handle_t handle)
-{
- return handle >> 32;
-}
-
-always_inline void
-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 *
+always_inline session_t *
session_get_from_handle (session_handle_t handle)
{
session_manager_main_t *smm = &session_manager_main;
return pool_elt_at_index (smm->wrk[thread_index].sessions, session_index);
}
-always_inline stream_session_t *
+always_inline session_t *
session_get_from_handle_if_valid (session_handle_t handle)
{
u32 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)
+always_inline u64
+session_segment_handle (session_t * s)
{
- u8 is_ip4 = s->session_type & 1;
- return (is_ip4 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6);
-}
+ svm_fifo_t *f;
-always_inline session_type_t
-session_type_from_proto_and_ip (transport_proto_t proto, u8 is_ip4)
-{
- return (proto << 1 | is_ip4);
-}
+ if (s->session_state == SESSION_STATE_LISTENING)
+ return SESSION_INVALID_HANDLE;
-always_inline u64
-session_segment_handle (stream_session_t * s)
-{
- svm_fifo_t *f = s->server_rx_fifo;
+ f = s->rx_fifo;
return segment_manager_make_segment_handle (f->segment_manager,
f->segment_index);
}
-always_inline u8
-session_has_transport (stream_session_t * s)
-{
- return (session_get_transport_proto (s) != TRANSPORT_PROTO_NONE);
-}
-
-transport_service_type_t session_transport_service_type (stream_session_t *);
-transport_tx_fn_type_t session_transport_tx_fn_type (stream_session_t *);
-u8 session_tx_is_dgram (stream_session_t * s);
-
/**
* Acquires a lock that blocks a session pool from expanding.
*
*
* Caller should drop the peek 'lock' as soon as possible.
*/
-always_inline stream_session_t *
+always_inline session_t *
session_get_from_handle_safe (u64 handle)
{
u32 thread_index = session_thread_from_handle (handle);
}
always_inline u32
-transport_max_rx_enqueue (transport_connection_t * tc)
-{
- stream_session_t *s = session_get (tc->s_index, tc->thread_index);
- return svm_fifo_max_enqueue (s->server_rx_fifo);
-}
-
-always_inline u32
-transport_max_tx_dequeue (transport_connection_t * tc)
-{
- stream_session_t *s = session_get (tc->s_index, tc->thread_index);
- return svm_fifo_max_dequeue (s->server_tx_fifo);
-}
-
-always_inline u32
-transport_rx_fifo_size (transport_connection_t * tc)
-{
- stream_session_t *s = session_get (tc->s_index, tc->thread_index);
- return s->server_rx_fifo->nitems;
-}
-
-always_inline u32
-transport_tx_fifo_size (transport_connection_t * tc)
-{
- stream_session_t *s = session_get (tc->s_index, tc->thread_index);
- return s->server_tx_fifo->nitems;
-}
-
-always_inline u8
-transport_rx_fifo_has_ooo_data (transport_connection_t * tc)
-{
- stream_session_t *s = session_get (tc->c_index, tc->thread_index);
- return svm_fifo_has_ooo_data (s->server_rx_fifo);
-}
-
-always_inline f64
-transport_dispatch_period (u32 thread_index)
-{
- return session_manager_main.wrk[thread_index].dispatch_period;
-}
-
-always_inline f64
-transport_time_now (u32 thread_index)
-{
- return session_manager_main.wrk[thread_index].last_vlib_time;
-}
-
-always_inline u32
-session_get_index (stream_session_t * s)
+session_get_index (session_t * s)
{
return (s - session_manager_main.wrk[s->thread_index].sessions);
}
-always_inline stream_session_t *
+always_inline session_t *
session_clone_safe (u32 session_index, u32 thread_index)
{
- stream_session_t *old_s, *new_s;
+ session_t *old_s, *new_s;
u32 current_thread_index = vlib_get_thread_index ();
/* If during the memcpy pool is reallocated AND the memory allocator
return new_s;
}
-transport_connection_t *session_get_transport (stream_session_t * s);
+int session_open (u32 app_index, session_endpoint_t * tep, u32 opaque);
+int session_listen (session_t * s, session_endpoint_cfg_t * sep);
+int session_stop_listen (session_t * s);
+void session_close (session_t * s);
+void session_transport_close (session_t * s);
+void session_transport_cleanup (session_t * s);
+int session_send_io_evt_to_thread (svm_fifo_t * f,
+ session_evt_type_t evt_type);
+int session_dequeue_notify (session_t * s);
+int session_send_io_evt_to_thread_custom (void *data, u32 thread_index,
+ session_evt_type_t evt_type);
+void session_send_rpc_evt_to_thread (u32 thread_index, void *fp,
+ void *rpc_args);
+transport_connection_t *session_get_transport (session_t * s);
-u32 session_tx_fifo_max_dequeue (transport_connection_t * tc);
-int
-session_enqueue_stream_connection (transport_connection_t * tc,
- vlib_buffer_t * b, u32 offset,
- u8 queue_event, u8 is_in_order);
-int session_enqueue_dgram_connection (stream_session_t * s,
+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);
+
+/*
+ * Interface to transport protos
+ */
+
+int session_enqueue_stream_connection (transport_connection_t * tc,
+ vlib_buffer_t * b, u32 offset,
+ u8 queue_event, u8 is_in_order);
+int session_enqueue_dgram_connection (session_t * s,
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_dgram_connect_notify (transport_connection_t * tc,
u32 old_thread_index,
- stream_session_t ** new_session);
-int session_dequeue_notify (stream_session_t * s);
+ session_t ** new_session);
void stream_session_init_fifos_pointers (transport_connection_t * tc,
u32 rx_pointer, u32 tx_pointer);
void session_transport_reset_notify (transport_connection_t * tc);
int stream_session_accept (transport_connection_t * tc, u32 listener_index,
u8 notify);
-int session_open (u32 app_index, session_endpoint_t * tep, u32 opaque);
-int session_listen (stream_session_t * s, session_endpoint_cfg_t * sep);
-int session_stop_listen (stream_session_t * s);
-void session_close (stream_session_t * s);
-void session_transport_close (stream_session_t * s);
-void session_transport_cleanup (stream_session_t * s);
-int session_send_io_evt_to_thread (svm_fifo_t * f,
- session_evt_type_t evt_type);
-int session_send_io_evt_to_thread_custom (void *data, u32 thread_index,
- session_evt_type_t evt_type);
-void session_send_rpc_evt_to_thread (u32 thread_index, void *fp,
- void *rpc_args);
-
-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);
-
+u32 session_tx_fifo_max_dequeue (transport_connection_t * tc);
void session_register_transport (transport_proto_t transport_proto,
const transport_proto_vft_t * vft, u8 is_ip4,
u32 output_node);
-always_inline void
-transport_add_tx_event (transport_connection_t * tc)
+always_inline u32
+transport_max_rx_enqueue (transport_connection_t * tc)
{
- stream_session_t *s = session_get (tc->s_index, tc->thread_index);
- if (svm_fifo_has_event (s->server_tx_fifo))
- return;
- session_send_io_evt_to_thread (s->server_tx_fifo, FIFO_EVENT_APP_TX);
+ session_t *s = session_get (tc->s_index, tc->thread_index);
+ return svm_fifo_max_enqueue (s->rx_fifo);
}
-clib_error_t *vnet_session_enable_disable (vlib_main_t * vm, u8 is_en);
+always_inline u32
+transport_max_tx_dequeue (transport_connection_t * tc)
+{
+ session_t *s = session_get (tc->s_index, tc->thread_index);
+ return svm_fifo_max_dequeue (s->tx_fifo);
+}
-always_inline svm_msg_q_t *
-session_manager_get_vpp_event_queue (u32 thread_index)
+always_inline u32
+transport_rx_fifo_size (transport_connection_t * tc)
{
- return session_manager_main.wrk[thread_index].vpp_event_queue;
+ session_t *s = session_get (tc->s_index, tc->thread_index);
+ return s->rx_fifo->nitems;
}
-int session_manager_flush_enqueue_events (u8 proto, u32 thread_index);
-int session_manager_flush_all_enqueue_events (u8 transport_proto);
+always_inline u32
+transport_tx_fifo_size (transport_connection_t * tc)
+{
+ session_t *s = session_get (tc->s_index, tc->thread_index);
+ return s->tx_fifo->nitems;
+}
+
+always_inline u8
+transport_rx_fifo_has_ooo_data (transport_connection_t * tc)
+{
+ session_t *s = session_get (tc->c_index, tc->thread_index);
+ return svm_fifo_has_ooo_data (s->rx_fifo);
+}
+
+always_inline f64
+transport_dispatch_period (u32 thread_index)
+{
+ return session_manager_main.wrk[thread_index].dispatch_period;
+}
+
+always_inline f64
+transport_time_now (u32 thread_index)
+{
+ return session_manager_main.wrk[thread_index].last_vlib_time;
+}
+
+always_inline void
+transport_add_tx_event (transport_connection_t * tc)
+{
+ session_t *s = session_get (tc->s_index, tc->thread_index);
+ if (svm_fifo_has_event (s->tx_fifo))
+ return;
+ session_send_io_evt_to_thread (s->tx_fifo, FIFO_EVENT_APP_TX);
+}
+
+/*
+ * Listen sessions
+ */
always_inline u64
-listen_session_get_handle (stream_session_t * s)
+listen_session_get_handle (session_t * s)
{
ASSERT (s->session_state == SESSION_STATE_LISTENING);
return session_handle (s);
}
-always_inline stream_session_t *
+always_inline session_t *
listen_session_get_from_handle (session_handle_t handle)
{
return session_get_from_handle (handle);
session_parse_handle (handle, index, thread_index);
}
-always_inline stream_session_t *
+always_inline session_t *
listen_session_new (u8 thread_index, session_type_t type)
{
- stream_session_t *s;
+ session_t *s;
s = session_alloc (thread_index);
s->session_type = type;
s->session_state = SESSION_STATE_LISTENING;
return s;
}
-always_inline stream_session_t *
+always_inline session_t *
listen_session_get (u32 index)
{
return session_get (index, 0);
}
always_inline void
-listen_session_del (stream_session_t * s)
+listen_session_del (session_t * s)
{
session_free (s);
}
-transport_connection_t *listen_session_get_transport (stream_session_t * s);
+transport_connection_t *listen_session_get_transport (session_t * s);
int
-listen_session_get_local_session_endpoint (stream_session_t * listener,
+listen_session_get_local_session_endpoint (session_t * listener,
session_endpoint_t * sep);
-void session_flush_frames_main_thread (vlib_main_t * vm);
+/*
+ * Session manager functions
+ */
+
+always_inline session_manager_main_t *
+vnet_get_session_manager_main ()
+{
+ return &session_manager_main;
+}
+
+always_inline session_manager_worker_t *
+session_manager_get_worker (u32 thread_index)
+{
+ return &session_manager_main.wrk[thread_index];
+}
+
+always_inline svm_msg_q_t *
+session_manager_get_vpp_event_queue (u32 thread_index)
+{
+ return session_manager_main.wrk[thread_index].vpp_event_queue;
+}
always_inline u8
session_manager_is_enabled ()
return clib_error_return(0, "session layer is not enabled"); \
} while (0)
+int session_manager_flush_enqueue_events (u8 proto, u32 thread_index);
+int session_manager_flush_all_enqueue_events (u8 transport_proto);
+void session_flush_frames_main_thread (vlib_main_t * vm);
+ssvm_private_t *session_manager_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);
#endif /* __included_session_h__ */