#include <svm/fifo_segment.h>
#include <vlib/dma/dma.h>
-#define foreach_session_input_error \
-_(NO_SESSION, "No session drops") \
-_(NO_LISTENER, "No listener for dst port drops") \
-_(ENQUEUED, "Packets pushed into rx fifo") \
-_(NOT_READY, "Session not ready packets") \
-_(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") \
-
-typedef enum
-{
-#define _(sym,str) SESSION_ERROR_##sym,
- foreach_session_input_error
-#undef _
- SESSION_N_ERROR,
-} session_input_error_t;
+typedef struct session_wrk_stats_
+{
+ u32 errors[SESSION_N_ERRORS];
+} session_wrk_stats_t;
typedef struct session_tx_context_
{
/** Convenience pointer to this worker's vlib_main */
vlib_main_t *vm;
- /** Per-proto vector of sessions to enqueue */
- u32 **session_to_enqueue;
+ /** Per-proto vector of session handles to enqueue */
+ session_handle_t **session_to_enqueue;
/** Timerfd used to periodically signal wrk session queue node */
int timerfd;
/** List head for first worker evts pending handling on main */
clib_llist_index_t evts_pending_main;
+ /** Per-app-worker bitmap of pending notifications */
+ uword *app_wrks_pending_ntf;
+
int config_index;
u8 dma_enabled;
session_dma_transfer *dma_trans;
u16 batch_num;
vlib_dma_batch_t *batch;
+ session_wrk_stats_t stats;
+
#if SESSION_DEBUG
/** last event poll time by thread */
clib_time_type_t last_event_poll;
u8 session_node_lookup_fifo_event (svm_fifo_t * f, session_event_t * e);
typedef void (*session_update_time_fn) (f64 time_now, u8 thread_index);
+typedef void (*nat44_original_dst_lookup_fn) (
+ ip4_address_t *i2o_src, u16 i2o_src_port, ip4_address_t *i2o_dst,
+ u16 i2o_dst_port, ip_protocol_t proto, u32 *original_dst,
+ u16 *original_dst_port);
typedef struct session_main_
{
u32 local_endpoints_table_memory;
u32 local_endpoints_table_buckets;
+ /** Transport source port allocation range */
+ u16 port_allocator_min_src_port;
+ u16 port_allocator_max_src_port;
+
/** Preallocate session config parameter */
u32 preallocated_sessions;
u16 msg_id_base;
+
+ /** Query nat44-ed session to get original dst ip4 & dst port. */
+ nat44_original_dst_lookup_fn original_dst_lookup;
} session_main_t;
extern session_main_t session_main;
extern vlib_node_registration_t session_queue_node;
+extern vlib_node_registration_t session_input_node;
extern vlib_node_registration_t session_queue_process_node;
extern vlib_node_registration_t session_queue_pre_input_node;
static inline void
session_evt_ctrl_data_free (session_worker_t * wrk, session_evt_elt_t * elt)
{
- ASSERT (elt->evt.event_type > SESSION_IO_EVT_BUILTIN_TX);
+ ASSERT (elt->evt.event_type >= SESSION_CTRL_EVT_RPC);
pool_put_index (wrk->ctrl_evts_data, elt->evt.ctrl_data_index);
}
session_t *session_alloc (u32 thread_index);
void session_free (session_t * s);
-void session_free_w_fifos (session_t * s);
+void session_cleanup (session_t *s);
+void session_program_cleanup (session_t *s);
void session_cleanup_half_open (session_handle_t ho_handle);
u8 session_is_valid (u32 si, u8 thread_index);
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_enqueue_notify (session_t * s);
+int session_enqueue_notify (session_t *s);
int session_dequeue_notify (session_t * s);
+int session_enqueue_notify_cl (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,
session_dgram_hdr_t * hdr,
vlib_buffer_t * b, u8 proto,
u8 queue_event);
+int session_enqueue_dgram_connection_cl (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,
session_error_t err);
int session_dgram_connect_notify (transport_connection_t * tc,
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
*
return svm_fifo_has_ooo_data (s->rx_fifo);
}
+always_inline u32
+transport_tx_fifo_has_dgram (transport_connection_t *tc)
+{
+ session_t *s = session_get (tc->s_index, tc->thread_index);
+ u32 max_deq = svm_fifo_max_dequeue_cons (s->tx_fifo);
+ session_dgram_pre_hdr_t phdr;
+
+ if (max_deq <= sizeof (session_dgram_hdr_t))
+ return 0;
+ svm_fifo_peek (s->tx_fifo, 0, sizeof (phdr), (u8 *) &phdr);
+ return max_deq >= phdr.data_length + sizeof (session_dgram_hdr_t);
+}
+
always_inline void
transport_rx_fifo_req_deq_ntf (transport_connection_t *tc)
{
always_inline session_worker_t *
session_main_get_worker (u32 thread_index)
{
- return &session_main.wrk[thread_index];
+ return vec_elt_at_index (session_main.wrk, thread_index);
}
static inline session_worker_t *
{
if (thread_index > vec_len (session_main.wrk))
return 0;
- return &session_main.wrk[thread_index];
+ return session_main_get_worker (thread_index);
}
always_inline svm_msg_q_t *
session_main_get_vpp_event_queue (u32 thread_index)
{
- return session_main.wrk[thread_index].vpp_event_queue;
+ return session_main_get_worker (thread_index)->vpp_event_queue;
}
always_inline u8
return session_main.is_enabled == 1;
}
+always_inline void
+session_worker_stat_error_inc (session_worker_t *wrk, int error, int value)
+{
+ if ((-(error) >= 0 && -(error) < SESSION_N_ERRORS))
+ wrk->stats.errors[-error] += value;
+ else
+ SESSION_DBG ("unknown session counter");
+}
+
+always_inline void
+session_stat_error_inc (int error, int value)
+{
+ session_worker_t *wrk;
+ wrk = session_main_get_worker (vlib_get_thread_index ());
+ session_worker_stat_error_inc (wrk, error, value);
+}
+
#define session_cli_return_if_not_enabled() \
do { \
if (!session_main.is_enabled) \
return clib_error_return (0, "session layer is not enabled"); \
} while (0)
-int session_main_flush_enqueue_events (u8 proto, u32 thread_index);
-int session_main_flush_all_enqueue_events (u8 transport_proto);
+void session_main_flush_enqueue_events (transport_proto_t transport_proto,
+ u32 thread_index);
void session_queue_run_on_main_thread (vlib_main_t * vm);
/**
void session_node_enable_disable (u8 is_en);
clib_error_t *vnet_session_enable_disable (vlib_main_t * vm, u8 is_en);
void session_wrk_handle_evts_main_rpc (void *);
+void session_wrk_program_app_wrk_evts (session_worker_t *wrk,
+ u32 app_wrk_index);
session_t *session_alloc_for_connection (transport_connection_t * tc);
session_t *session_alloc_for_half_open (transport_connection_t *tc);
+void session_get_original_dst (transport_endpoint_t *i2o_src,
+ transport_endpoint_t *i2o_dst,
+ transport_proto_t transport_proto,
+ u32 *original_dst, u16 *original_dst_port);
typedef void (pool_safe_realloc_rpc_fn) (void *rpc_args);
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