vpp - Vector Packet Processing

Age	Commit message (Expand)	Author	Files	Lines
2018-10-10	Setup, teardown, DEBUG=core, FAILFAST fixes	juraj.linkes	1	-21/+14
2018-08-30	Fix the default step when using STEP=1 while testing	juraj.linkes	1	-1/+1
2018-08-23	CSIT-1139: Implement parallel test execution	juraj.linkes	1	-5/+5
2018-03-31	make test: print a warning in case a core_pattern contains a filter program	Andrew Yourtchenko	1	-0/+2
2018-03-24	make test: enhance core-file information	Klement Sekera	1	-2/+12
2018-03-23	make test: code cleanup	Klement Sekera	1	-3/+5
2018-03-14	make test: early core detection, code cleanup	Klement Sekera	1	-0/+2
2018-02-01	IPv4/6 reassembly	Klement Sekera	1	-9/+5
2017-11-06	make test: fix DEBUG=core error	Klement Sekera	1	-1/+1
2017-08-10	make test: detect hung tests	Klement Sekera	1	-22/+7
2017-01-11	make test: improve documentation and PEP8 compliance	Klement Sekera	1	-2/+2
2016-12-07	BFD: basic asynchronous session up/down	Klement Sekera	1	-8/+12
2016-11-28	make test: detect early vpp crash	Klement Sekera	1	-2/+1
2016-11-02	Improve debug-cli in test framework	Klement Sekera	1	-1/+1
2016-10-31	add vpp debugging support to test framework	Klement Sekera	1	-8/+104
2016-10-26	refactor test framework	Klement Sekera	1	-0/+128

/* * Copyright (c) 2017 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: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef __included_session_h__ #define __included_session_h__ #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> #define HALF_OPEN_LOOKUP_INVALID_VALUE ((u64)~0) #define INVALID_INDEX ((u32)~0) /* TODO decide how much since we have pre-data as well */ #define MAX_HDRS_LEN 100 /* Max number of bytes for headers */ typedef enum { FIFO_EVENT_SERVER_RX, FIFO_EVENT_SERVER_TX, FIFO_EVENT_TIMEOUT, FIFO_EVENT_SERVER_EXIT, FIFO_EVENT_BUILTIN_RX } fifo_event_type_t; #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") \ _(NEW_SEG_NO_SPACE, "Created segment, couldn't allocate a fifo pair") \ _(NO_SPACE, "Couldn't allocate a fifo pair") typedef enum { #define _(sym,str) SESSION_ERROR_##sym, foreach_session_input_error #undef _ 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; #define foreach_session_type \ _(IP4_TCP, ip4_tcp) \ _(IP4_UDP, ip4_udp) \ _(IP6_TCP, ip6_tcp) \ _(IP6_UDP, ip6_udp) typedef enum { #define _(A, a) SESSION_TYPE_##A, foreach_session_type #undef _ SESSION_N_TYPES, } session_type_t; /* * Application session state */ typedef enum { SESSION_STATE_LISTENING, SESSION_STATE_CONNECTING, SESSION_STATE_READY, SESSION_STATE_CLOSED, SESSION_STATE_N_STATES, } stream_session_state_t; /* *INDENT-OFF* */ typedef CLIB_PACKED (struct { svm_fifo_t * fifo; 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; /** used during unbind processing */ u8 is_deleted; /** To avoid n**2 "one event per frame" check */ u8 enqueue_epoch; /** Session index in per_thread pool */ u32 session_index; /** Transport specific */ u32 connection_index; /** Application specific */ u32 pid; /** 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; /** 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; /* 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_manager_main_t * smm, session_fifo_event_t * e0, stream_session_t * s0, u32 thread_index, 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; struct _session_manager_main { /** Lookup tables for established sessions and listeners */ clib_bihash_16_8_t v4_session_hash; clib_bihash_48_8_t v6_session_hash; /** Lookup tables for half-open sessions */ clib_bihash_16_8_t v4_half_open_hash; clib_bihash_48_8_t v6_half_open_hash; /** Per worker thread session pools */ stream_session_t **sessions; /** Pool of listen sessions. Same type as stream sessions to ease lookups */ stream_session_t *listen_sessions[SESSION_N_TYPES]; /** Sparse vector to map dst port to stream server */ u16 *stream_server_by_dst_port[SESSION_N_TYPES]; /** per-worker enqueue epoch counters */ u8 *current_enqueue_epoch; /** Per-worker thread vector of sessions to enqueue */ u32 **session_indices_to_enqueue_by_thread; /** per-worker tx buffer free lists */ u32 **tx_buffers; /** Per worker-thread vector of partially read events */ session_fifo_event_t **evts_partially_read; /** per-worker active event vectors */ session_fifo_event_t **fifo_events; /** vpp fifo event queue */ unix_shared_memory_queue_t **vpp_event_queues; /** 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_tx_fns[SESSION_N_TYPES]; u8 is_enabled; /* 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; extern vlib_node_registration_t session_queue_node; /* * Session manager function */ always_inline session_manager_main_t * vnet_get_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 */ stream_session_t *stream_session_lookup_listener4 (ip4_address_t * lcl, 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); 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); 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_t *stream_session_lookup_listener (ip46_address_t * lcl, u16 lcl_port, u8 proto); always_inline stream_session_t * stream_session_get_tsi (u64 ti_and_si, u32 thread_index) { ASSERT ((u32) (ti_and_si >> 32) == thread_index); return pool_elt_at_index (session_manager_main.sessions[thread_index], ti_and_si & 0xFFFFFFFFULL); } always_inline stream_session_t * stream_session_get (u64 si, u32 thread_index) { return pool_elt_at_index (session_manager_main.sessions[thread_index], si); } always_inline stream_session_t * stream_session_get_if_valid (u64 si, u32 thread_index) { if (thread_index >= vec_len (session_manager_main.sessions)) return 0; if (pool_is_free_index (session_manager_main.sessions[thread_index], si)) return 0; return pool_elt_at_index (session_manager_main.sessions[thread_index], si); } always_inline stream_session_t * stream_session_listener_get (u8 sst, u64 si) { return pool_elt_at_index (session_manager_main.listen_sessions[sst], si); } always_inline u32 stream_session_get_index (stream_session_t * s) { if (s->session_state == SESSION_STATE_LISTENING) return s - session_manager_main.listen_sessions[s->session_type]; return s - session_manager_main.sessions[s->thread_index]; } always_inline u32 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_t *s = stream_session_get (tc->s_index, tc->thread_index); return s->server_rx_fifo->nitems; } int stream_session_enqueue_data (transport_connection_t * tc, u8 * data, u16 len, u8 queue_event); u32 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); 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); void stream_session_reset_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); 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); u8 *format_stream_session (u8 * s, va_list * args); 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); #endif /* __included_session_h__ */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */