diff options
Diffstat (limited to 'src/vnet/session')
| -rw-r--r-- | src/vnet/session/application.c | 16 | ||||
| -rw-r--r-- | src/vnet/session/application.h | 8 | ||||
| -rw-r--r-- | src/vnet/session/application_interface.h | 2 | ||||
| -rw-r--r-- | src/vnet/session/application_local.c | 6 | ||||
| -rw-r--r-- | src/vnet/session/application_worker.c | 55 | ||||
| -rw-r--r-- | src/vnet/session/segment_manager.c | 547 | ||||
| -rw-r--r-- | src/vnet/session/segment_manager.h | 145 | ||||
| -rwxr-xr-x | src/vnet/session/session_api.c | 2 |
8 files changed, 402 insertions, 379 deletions
diff --git a/src/vnet/session/application.c b/src/vnet/session/application.c index 82b6dfef534..69cc87c9575 100644 --- a/src/vnet/session/application.c +++ b/src/vnet/session/application.c @@ -504,7 +504,7 @@ static int application_alloc_and_init (app_init_args_t * a) { ssvm_segment_type_t seg_type = SSVM_SEGMENT_MEMFD; - segment_manager_properties_t *props; + segment_manager_props_t *props; vl_api_registration_t *reg; application_t *app; u64 *options; @@ -553,7 +553,7 @@ application_alloc_and_init (app_init_args_t * a) app->flags |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE; props = application_segment_manager_properties (app); - segment_manager_properties_init (props); + segment_manager_props_init (props); props->segment_size = options[APP_OPTIONS_ADD_SEGMENT_SIZE]; props->prealloc_fifos = options[APP_OPTIONS_PREALLOC_FIFO_PAIRS]; if (options[APP_OPTIONS_ADD_SEGMENT_SIZE]) @@ -719,7 +719,7 @@ application_alloc_worker_and_init (application_t * app, app_worker_t ** wrk) /* * Setup first segment manager */ - sm = segment_manager_new (); + sm = segment_manager_alloc (); sm->app_wrk_index = app_wrk->wrk_index; if ((rv = segment_manager_init (sm, app->sm_properties.segment_size, @@ -746,7 +746,7 @@ application_alloc_worker_and_init (application_t * app, app_worker_t ** wrk) int vnet_app_worker_add_del (vnet_app_worker_add_del_args_t * a) { - svm_fifo_segment_private_t *fs; + fifo_segment_t *fs; app_worker_map_t *wrk_map; app_worker_t *app_wrk; segment_manager_t *sm; @@ -838,7 +838,7 @@ app_name_from_api_index (u32 api_client_index) int vnet_application_attach (vnet_app_attach_args_t * a) { - svm_fifo_segment_private_t *fs; + fifo_segment_t *fs; application_t *app = 0; app_worker_t *app_wrk; segment_manager_t *sm; @@ -1313,13 +1313,13 @@ application_remove_proxy (application_t * app) /* *INDENT-ON* */ } -segment_manager_properties_t * +segment_manager_props_t * application_segment_manager_properties (application_t * app) { return &app->sm_properties; } -segment_manager_properties_t * +segment_manager_props_t * application_get_segment_manager_properties (u32 app_index) { application_t *app = application_get (app_index); @@ -1404,7 +1404,7 @@ format_application (u8 * s, va_list * args) { application_t *app = va_arg (*args, application_t *); CLIB_UNUSED (int verbose) = va_arg (*args, int); - segment_manager_properties_t *props; + segment_manager_props_t *props; const u8 *app_ns_name, *app_name; app_worker_map_t *wrk_map; app_worker_t *app_wrk; diff --git a/src/vnet/session/application.h b/src/vnet/session/application.h index 0cf97a75742..4485b743589 100644 --- a/src/vnet/session/application.h +++ b/src/vnet/session/application.h @@ -92,7 +92,7 @@ typedef struct application_ session_cb_vft_t cb_fns; /** Segment manager properties. Shared by all segment managers */ - segment_manager_properties_t sm_properties; + segment_manager_props_t sm_properties; /** Pool of mappings that keep track of workers associated to this app */ app_worker_map_t *worker_maps; @@ -197,10 +197,10 @@ u8 application_has_global_scope (application_t * app); void application_setup_proxy (application_t * app); void application_remove_proxy (application_t * app); -segment_manager_properties_t *application_get_segment_manager_properties (u32 - app_index); +segment_manager_props_t *application_get_segment_manager_properties (u32 + app_index); -segment_manager_properties_t +segment_manager_props_t * application_segment_manager_properties (application_t * app); /* diff --git a/src/vnet/session/application_interface.h b/src/vnet/session/application_interface.h index 3e6abdbec86..aa1a3f30877 100644 --- a/src/vnet/session/application_interface.h +++ b/src/vnet/session/application_interface.h @@ -17,9 +17,9 @@ #include <vlibmemory/api.h> #include <svm/message_queue.h> -#include <svm/svm_fifo_segment.h> #include <vnet/session/session_types.h> #include <vnet/tls/tls_test.h> +#include <svm/fifo_segment.h> typedef struct _stream_session_cb_vft { diff --git a/src/vnet/session/application_local.c b/src/vnet/session/application_local.c index d2edd54512a..f868e1964cc 100644 --- a/src/vnet/session/application_local.c +++ b/src/vnet/session/application_local.c @@ -91,10 +91,10 @@ ct_session_endpoint (session_t * ll, session_endpoint_t * sep) int ct_session_connect_notify (session_t * ss) { - svm_fifo_segment_private_t *seg; ct_connection_t *sct, *cct; app_worker_t *client_wrk; segment_manager_t *sm; + fifo_segment_t *seg; u64 segment_handle; int is_fail = 0; session_t *cs; @@ -167,11 +167,11 @@ ct_init_local_session (app_worker_t * client_wrk, app_worker_t * server_wrk, ct_connection_t * ct, session_t * ls, session_t * ll) { u32 round_rx_fifo_sz, round_tx_fifo_sz, sm_index, seg_size; - segment_manager_properties_t *props; - svm_fifo_segment_private_t *seg; + segment_manager_props_t *props; application_t *server; segment_manager_t *sm; u32 margin = 16 << 10; + fifo_segment_t *seg; u64 segment_handle; int seg_index, rv; diff --git a/src/vnet/session/application_worker.c b/src/vnet/session/application_worker.c index 3cc84e84f1a..d98c437ec84 100644 --- a/src/vnet/session/application_worker.c +++ b/src/vnet/session/application_worker.c @@ -95,7 +95,7 @@ app_worker_free (app_worker_t * app_wrk) sm = segment_manager_get (app_wrk->connects_seg_manager); sm->app_wrk_index = SEGMENT_MANAGER_INVALID_APP_INDEX; sm->first_is_protected = 0; - segment_manager_init_del (sm); + segment_manager_init_free (sm); } /* If first segment manager is used by a listener */ @@ -108,7 +108,7 @@ app_worker_free (app_worker_t * app_wrk) /* .. and has no fifos, e.g. it might be used for redirected sessions, * remove it */ if (!segment_manager_has_fifos (sm)) - segment_manager_del (sm); + segment_manager_free (sm); } pool_put (app_workers, app_wrk); @@ -140,7 +140,7 @@ app_worker_alloc_segment_manager (app_worker_t * app_wrk) return sm; } - sm = segment_manager_new (); + sm = segment_manager_alloc (); sm->app_wrk_index = app_wrk->wrk_index; return sm; @@ -238,7 +238,7 @@ app_worker_stop_listen_session (app_worker_t * app_wrk, session_t * ls) } else { - segment_manager_init_del (sm); + segment_manager_init_free (sm); } hash_unset (app_wrk->listeners_table, handle); } @@ -698,63 +698,20 @@ format_app_worker (u8 * s, va_list * args) void app_worker_format_connects (app_worker_t * app_wrk, int verbose) { - svm_fifo_segment_private_t *fifo_segment; - vlib_main_t *vm = vlib_get_main (); segment_manager_t *sm; - const u8 *app_name; - u8 *s = 0; /* Header */ if (!app_wrk) { - if (verbose) - vlib_cli_output (vm, "%-40s%-20s%-15s%-10s", "Connection", "App", - "API Client", "SegManager"); - else - vlib_cli_output (vm, "%-40s%-20s", "Connection", "App"); + segment_manager_format_sessions (0, verbose); return; } if (app_wrk->connects_seg_manager == (u32) ~ 0) return; - app_name = application_name_from_index (app_wrk->app_index); - - /* Across all fifo segments */ sm = segment_manager_get (app_wrk->connects_seg_manager); - - /* *INDENT-OFF* */ - segment_manager_foreach_segment_w_lock (fifo_segment, sm, ({ - svm_fifo_t *fifo; - u8 *str; - - fifo = svm_fifo_segment_get_fifo_list (fifo_segment); - while (fifo) - { - u32 session_index, thread_index; - session_t *session; - - session_index = fifo->master_session_index; - thread_index = fifo->master_thread_index; - - session = session_get (session_index, thread_index); - str = format (0, "%U", format_session, session, verbose); - - if (verbose) - s = format (s, "%-40s%-20s%-15u%-10u", str, app_name, - app_wrk->api_client_index, app_wrk->connects_seg_manager); - else - s = format (s, "%-40s%-20s", str, app_name); - - vlib_cli_output (vm, "%v", s); - vec_reset_length (s); - vec_free (str); - - fifo = fifo->next; - } - vec_free (s); - })); - /* *INDENT-ON* */ + segment_manager_format_sessions (sm, verbose); } /* diff --git a/src/vnet/session/segment_manager.c b/src/vnet/session/segment_manager.c index 2437f99098b..47c7f563542 100644 --- a/src/vnet/session/segment_manager.c +++ b/src/vnet/session/segment_manager.c @@ -17,34 +17,43 @@ #include <vnet/session/session.h> #include <vnet/session/application.h> -segment_manager_main_t segment_manager_main; +typedef struct segment_manager_main_ +{ + segment_manager_t *segment_managers; /**< Pool of segment managers */ + clib_valloc_main_t va_allocator; /**< Virtual address allocator */ + u32 seg_name_counter; /**< Counter for segment names */ -/** - * Counter used to build segment names - */ -static u32 segment_name_counter = 0; + /* + * Configuration + */ + u32 default_fifo_size; /**< default rx/tx fifo size */ + u32 default_segment_size; /**< default fifo segment size */ + u32 default_app_mq_size; /**< default app msg q size */ +} segment_manager_main_t; -/** - * Default fifo and segment size. TODO config. - */ -static u32 default_fifo_size = 1 << 12; -static u32 default_segment_size = 1 << 20; -static u32 default_app_evt_queue_size = 128; +static segment_manager_main_t sm_main; -segment_manager_properties_t * +#define segment_manager_foreach_segment_w_lock(VAR, SM, BODY) \ +do { \ + clib_rwlock_reader_lock (&(SM)->segments_rwlock); \ + pool_foreach((VAR), ((SM)->segments), (BODY)); \ + clib_rwlock_reader_unlock (&(SM)->segments_rwlock); \ +} while (0) + +static segment_manager_props_t * segment_manager_properties_get (segment_manager_t * sm) { app_worker_t *app_wrk = app_worker_get (sm->app_wrk_index); return application_get_segment_manager_properties (app_wrk->app_index); } -segment_manager_properties_t * -segment_manager_properties_init (segment_manager_properties_t * props) +segment_manager_props_t * +segment_manager_props_init (segment_manager_props_t * props) { - props->add_segment_size = default_segment_size; - props->rx_fifo_size = default_fifo_size; - props->tx_fifo_size = default_fifo_size; - props->evt_q_size = default_app_evt_queue_size; + props->add_segment_size = sm_main.default_segment_size; + props->rx_fifo_size = sm_main.default_fifo_size; + props->tx_fifo_size = sm_main.default_fifo_size; + props->evt_q_size = sm_main.default_app_mq_size; return props; } @@ -61,20 +70,103 @@ segment_manager_app_detach (segment_manager_t * sm) } always_inline u32 -segment_manager_segment_index (segment_manager_t * sm, - svm_fifo_segment_private_t * seg) +segment_manager_segment_index (segment_manager_t * sm, fifo_segment_t * seg) { return (seg - sm->segments); } /** + * Adds segment to segment manager's pool + * + * If needed a writer's lock is acquired before allocating a new segment + * to avoid affecting any of the segments pool readers. + */ +int +segment_manager_add_segment (segment_manager_t * sm, u32 segment_size) +{ + segment_manager_main_t *smm = &sm_main; + u32 rnd_margin = 128 << 10, fs_index = ~0, page_size; + uword baseva = (uword) ~ 0ULL, alloc_size; + segment_manager_props_t *props; + fifo_segment_t *fs; + u8 *seg_name; + int rv; + + props = segment_manager_properties_get (sm); + + /* Not configured for addition of new segments and not first */ + if (!props->add_segment && !segment_size) + { + clib_warning ("cannot allocate new segment"); + return VNET_API_ERROR_INVALID_VALUE; + } + + /* + * Allocate fifo segment and lock if needed + */ + if (vlib_num_workers ()) + clib_rwlock_writer_lock (&sm->segments_rwlock); + + pool_get_zero (sm->segments, fs); + + /* + * Initialize ssvm segment and svm fifo private header + */ + segment_size = segment_size ? segment_size : props->add_segment_size; + page_size = clib_mem_get_page_size (); + segment_size = (segment_size + page_size - 1) & ~(page_size - 1); + if (props->segment_type != SSVM_SEGMENT_PRIVATE) + { + seg_name = format (0, "%d-%d%c", getpid (), smm->seg_name_counter++, 0); + alloc_size = (uword) segment_size + rnd_margin; + baseva = clib_valloc_alloc (&smm->va_allocator, alloc_size, 0); + if (!baseva) + { + clib_warning ("out of space for segments"); + pool_put (sm->segments, fs); + goto done; + } + } + else + seg_name = format (0, "%s%c", "process-private-segment", 0); + + fs->ssvm.ssvm_size = segment_size; + fs->ssvm.name = seg_name; + fs->ssvm.requested_va = baseva; + + if ((rv = ssvm_master_init (&fs->ssvm, props->segment_type))) + { + clib_warning ("svm_master_init ('%v', %u) failed", seg_name, + segment_size); + + if (props->segment_type != SSVM_SEGMENT_PRIVATE) + clib_valloc_free (&smm->va_allocator, baseva); + pool_put (sm->segments, fs); + goto done; + } + + fifo_segment_init (fs); + + /* + * Save segment index before dropping lock, if any held + */ + fs_index = fs - sm->segments; + +done: + + if (vlib_num_workers ()) + clib_rwlock_writer_unlock (&sm->segments_rwlock); + + return fs_index; +} + +/** * Remove segment without lock */ void -segment_manager_del_segment (segment_manager_t * sm, - svm_fifo_segment_private_t * fs) +segment_manager_del_segment (segment_manager_t * sm, fifo_segment_t * fs) { - segment_manager_main_t *smm = &segment_manager_main; + segment_manager_main_t *smm = &sm_main; if (ssvm_type (&fs->ssvm) != SSVM_SEGMENT_PRIVATE) { @@ -103,12 +195,12 @@ segment_manager_del_segment (segment_manager_t * sm, static inline void segment_manager_lock_and_del_segment (segment_manager_t * sm, u32 fs_index) { - svm_fifo_segment_private_t *fs; + fifo_segment_t *fs; u8 is_prealloc; clib_rwlock_writer_lock (&sm->segments_rwlock); fs = segment_manager_get_segment (sm, fs_index); - is_prealloc = svm_fifo_segment_flags (fs) & FIFO_SEGMENT_F_IS_PREALLOCATED; + is_prealloc = fifo_segment_flags (fs) & FIFO_SEGMENT_F_IS_PREALLOCATED; if (is_prealloc && !segment_manager_app_detached (sm)) { clib_rwlock_writer_unlock (&sm->segments_rwlock); @@ -122,7 +214,7 @@ segment_manager_lock_and_del_segment (segment_manager_t * sm, u32 fs_index) /** * Reads a segment from the segment manager's pool without lock */ -svm_fifo_segment_private_t * +fifo_segment_t * segment_manager_get_segment (segment_manager_t * sm, u32 segment_index) { return pool_elt_at_index (sm->segments, segment_index); @@ -130,13 +222,13 @@ segment_manager_get_segment (segment_manager_t * sm, u32 segment_index) u64 segment_manager_segment_handle (segment_manager_t * sm, - svm_fifo_segment_private_t * segment) + fifo_segment_t * segment) { u32 segment_index = segment_manager_segment_index (sm, segment); return (((u64) segment_manager_index (sm) << 32) | segment_index); } -void +static void segment_manager_parse_segment_handle (u64 segment_handle, u32 * sm_index, u32 * segment_index) { @@ -144,7 +236,14 @@ segment_manager_parse_segment_handle (u64 segment_handle, u32 * sm_index, *segment_index = segment_handle & 0xFFFFFFFF; } -svm_fifo_segment_private_t * +u64 +segment_manager_make_segment_handle (u32 segment_manager_index, + u32 segment_index) +{ + return (((u64) segment_manager_index << 32) | segment_index); +} + +fifo_segment_t * segment_manager_get_segment_w_handle (u64 segment_handle) { u32 sm_index, segment_index; @@ -165,7 +264,7 @@ segment_manager_get_segment_w_handle (u64 segment_handle) * @ref segment_manager_segment_reader_unlock once it finishes working with * the segment. */ -svm_fifo_segment_private_t * +fifo_segment_t * segment_manager_get_segment_w_lock (segment_manager_t * sm, u32 segment_index) { clib_rwlock_reader_lock (&sm->segments_rwlock); @@ -185,98 +284,13 @@ segment_manager_segment_writer_unlock (segment_manager_t * sm) clib_rwlock_writer_unlock (&sm->segments_rwlock); } -/** - * Adds segment to segment manager's pool - * - * If needed a writer's lock is acquired before allocating a new segment - * to avoid affecting any of the segments pool readers. - */ -int -segment_manager_add_segment (segment_manager_t * sm, u32 segment_size) -{ - segment_manager_main_t *smm = &segment_manager_main; - u32 rnd_margin = 128 << 10, seg_index = ~0, page_size; - segment_manager_properties_t *props; - uword baseva = (uword) ~ 0ULL, alloc_size; - svm_fifo_segment_private_t *seg; - u8 *seg_name; - int rv; - - props = segment_manager_properties_get (sm); - - /* Not configured for addition of new segments and not first */ - if (!props->add_segment && !segment_size) - { - clib_warning ("cannot allocate new segment"); - return VNET_API_ERROR_INVALID_VALUE; - } - - /* - * Allocate fifo segment and lock if needed - */ - if (vlib_num_workers ()) - clib_rwlock_writer_lock (&sm->segments_rwlock); - - pool_get_zero (sm->segments, seg); - - /* - * Initialize ssvm segment and svm fifo private header - */ - segment_size = segment_size ? segment_size : props->add_segment_size; - page_size = clib_mem_get_page_size (); - segment_size = (segment_size + page_size - 1) & ~(page_size - 1); - if (props->segment_type != SSVM_SEGMENT_PRIVATE) - { - seg_name = format (0, "%d-%d%c", getpid (), segment_name_counter++, 0); - alloc_size = (uword) segment_size + rnd_margin; - baseva = clib_valloc_alloc (&smm->va_allocator, alloc_size, 0); - if (!baseva) - { - clib_warning ("out of space for segments"); - pool_put (sm->segments, seg); - goto done; - } - } - else - seg_name = format (0, "%s%c", "process-private-segment", 0); - - seg->ssvm.ssvm_size = segment_size; - seg->ssvm.name = seg_name; - seg->ssvm.requested_va = baseva; - - if ((rv = ssvm_master_init (&seg->ssvm, props->segment_type))) - { - clib_warning ("svm_master_init ('%v', %u) failed", seg_name, - segment_size); - - if (props->segment_type != SSVM_SEGMENT_PRIVATE) - clib_valloc_free (&smm->va_allocator, baseva); - pool_put (sm->segments, seg); - goto done; - } - - svm_fifo_segment_init (seg); - - /* - * Save segment index before dropping lock, if any held - */ - seg_index = seg - sm->segments; - -done: - - if (vlib_num_workers ()) - clib_rwlock_writer_unlock (&sm->segments_rwlock); - - return seg_index; -} - segment_manager_t * -segment_manager_new () +segment_manager_alloc (void) { - segment_manager_main_t *smm = &segment_manager_main; + segment_manager_main_t *smm = &sm_main; segment_manager_t *sm; - pool_get (smm->segment_managers, sm); - clib_memset (sm, 0, sizeof (*sm)); + + pool_get_zero (smm->segment_managers, sm); clib_rwlock_init (&sm->segments_rwlock); return sm; } @@ -292,13 +306,13 @@ segment_manager_init (segment_manager_t * sm, u32 first_seg_size, u32 rx_fifo_size, tx_fifo_size, pair_size; u32 rx_rounded_data_size, tx_rounded_data_size; u64 approx_total_size, max_seg_size = ((u64) 1 << 32) - (128 << 10); - segment_manager_properties_t *props; - svm_fifo_segment_private_t *segment; + segment_manager_props_t *props; + fifo_segment_t *segment; u32 approx_segment_count; int seg_index, i; props = segment_manager_properties_get (sm); - first_seg_size = clib_max (first_seg_size, default_segment_size); + first_seg_size = clib_max (first_seg_size, sm_main.default_segment_size); if (prealloc_fifo_pairs) { @@ -330,11 +344,11 @@ segment_manager_init (segment_manager_t * sm, u32 first_seg_size, if (i == 0) sm->event_queue = segment_manager_alloc_queue (segment, props); - svm_fifo_segment_preallocate_fifo_pairs (segment, - props->rx_fifo_size, - props->tx_fifo_size, - &prealloc_fifo_pairs); - svm_fifo_segment_flags (segment) = FIFO_SEGMENT_F_IS_PREALLOCATED; + fifo_segment_preallocate_fifo_pairs (segment, + props->rx_fifo_size, + props->tx_fifo_size, + &prealloc_fifo_pairs); + fifo_segment_flags (segment) = FIFO_SEGMENT_F_IS_PREALLOCATED; if (prealloc_fifo_pairs == 0) break; } @@ -354,22 +368,87 @@ segment_manager_init (segment_manager_t * sm, u32 first_seg_size, return 0; } +/** + * Cleanup segment manager. + */ +void +segment_manager_free (segment_manager_t * sm) +{ + segment_manager_main_t *smm = &sm_main; + fifo_segment_t *fifo_segment; + + ASSERT (!segment_manager_has_fifos (sm) + && segment_manager_app_detached (sm)); + + /* If we have empty preallocated segments that haven't been removed, remove + * them now. Apart from that, the first segment in the first segment manager + * is not removed when all fifos are removed. It can only be removed when + * the manager is explicitly deleted/detached by the app. */ + clib_rwlock_writer_lock (&sm->segments_rwlock); + + /* *INDENT-OFF* */ + pool_foreach (fifo_segment, sm->segments, ({ + segment_manager_del_segment (sm, fifo_segment); + })); + /* *INDENT-ON* */ + + clib_rwlock_writer_unlock (&sm->segments_rwlock); + + clib_rwlock_free (&sm->segments_rwlock); + if (CLIB_DEBUG) + clib_memset (sm, 0xfe, sizeof (*sm)); + pool_put (smm->segment_managers, sm); +} + +void +segment_manager_init_free (segment_manager_t * sm) +{ + segment_manager_app_detach (sm); + if (segment_manager_has_fifos (sm)) + segment_manager_del_sessions (sm); + else + { + ASSERT (!sm->first_is_protected || segment_manager_app_detached (sm)); + segment_manager_free (sm); + } +} + +segment_manager_t * +segment_manager_get (u32 index) +{ + return pool_elt_at_index (sm_main.segment_managers, index); +} + +segment_manager_t * +segment_manager_get_if_valid (u32 index) +{ + if (pool_is_free_index (sm_main.segment_managers, index)) + return 0; + return pool_elt_at_index (sm_main.segment_managers, index); +} + +u32 +segment_manager_index (segment_manager_t * sm) +{ + return sm - sm_main.segment_managers; +} + u8 segment_manager_has_fifos (segment_manager_t * sm) { - svm_fifo_segment_private_t *seg; + fifo_segment_t *seg; u8 first = 1; /* *INDENT-OFF* */ segment_manager_foreach_segment_w_lock (seg, sm, ({ - if (CLIB_DEBUG && !first && !svm_fifo_segment_has_fifos (seg) - && !(svm_fifo_segment_flags (seg) & FIFO_SEGMENT_F_IS_PREALLOCATED)) + if (CLIB_DEBUG && !first && !fifo_segment_has_fifos (seg) + && !(fifo_segment_flags (seg) & FIFO_SEGMENT_F_IS_PREALLOCATED)) { clib_warning ("segment %d has no fifos!", segment_manager_segment_index (sm, seg)); first = 0; } - if (svm_fifo_segment_has_fifos (seg)) + if (fifo_segment_has_fifos (seg)) { segment_manager_segment_reader_unlock (sm); return 1; @@ -386,7 +465,7 @@ segment_manager_has_fifos (segment_manager_t * sm) void segment_manager_del_sessions (segment_manager_t * sm) { - svm_fifo_segment_private_t *fifo_segment; + fifo_segment_t *fifo_segment; session_handle_t *handles = 0, *handle; session_t *session; svm_fifo_t *fifo; @@ -396,7 +475,7 @@ segment_manager_del_sessions (segment_manager_t * sm) /* Across all fifo segments used by the server */ /* *INDENT-OFF* */ segment_manager_foreach_segment_w_lock (fifo_segment, sm, ({ - fifo = svm_fifo_segment_get_fifo_list (fifo_segment); + fifo = fifo_segment_get_fifo_list (fifo_segment); /* * Remove any residual sessions from the session lookup table @@ -422,75 +501,25 @@ segment_manager_del_sessions (segment_manager_t * sm) session_close (session_get_from_handle (*handle)); } -/** - * Removes segment manager. - * - * Since the fifos allocated in the segment keep backpointers to the sessions - * prior to removing the segment, we call session disconnect. This - * subsequently propagates into transport. - */ -void -segment_manager_del (segment_manager_t * sm) -{ - segment_manager_main_t *smm = &segment_manager_main; - svm_fifo_segment_private_t *fifo_segment; - - ASSERT (!segment_manager_has_fifos (sm) - && segment_manager_app_detached (sm)); - - /* If we have empty preallocated segments that haven't been removed, remove - * them now. Apart from that, the first segment in the first segment manager - * is not removed when all fifos are removed. It can only be removed when - * the manager is explicitly deleted/detached by the app. */ - clib_rwlock_writer_lock (&sm->segments_rwlock); - - /* *INDENT-OFF* */ - pool_foreach (fifo_segment, sm->segments, ({ - segment_manager_del_segment (sm, fifo_segment); - })); - /* *INDENT-ON* */ - - clib_rwlock_writer_unlock (&sm->segments_rwlock); - - clib_rwlock_free (&sm->segments_rwlock); - if (CLIB_DEBUG) - clib_memset (sm, 0xfe, sizeof (*sm)); - pool_put (smm->segment_managers, sm); -} - -void -segment_manager_init_del (segment_manager_t * sm) -{ - segment_manager_app_detach (sm); - if (segment_manager_has_fifos (sm)) - segment_manager_del_sessions (sm); - else - { - ASSERT (!sm->first_is_protected || segment_manager_app_detached (sm)); - segment_manager_del (sm); - } -} - int -segment_manager_try_alloc_fifos (svm_fifo_segment_private_t * fifo_segment, +segment_manager_try_alloc_fifos (fifo_segment_t * fifo_segment, u32 rx_fifo_size, u32 tx_fifo_size, svm_fifo_t ** rx_fifo, svm_fifo_t ** tx_fifo) { - rx_fifo_size = clib_max (rx_fifo_size, default_fifo_size); - *rx_fifo = svm_fifo_segment_alloc_fifo (fifo_segment, rx_fifo_size, - FIFO_SEGMENT_RX_FREELIST); + rx_fifo_size = clib_max (rx_fifo_size, sm_main.default_fifo_size); + *rx_fifo = fifo_segment_alloc_fifo (fifo_segment, rx_fifo_size, + FIFO_SEGMENT_RX_FIFO); - tx_fifo_size = clib_max (tx_fifo_size, default_fifo_size); - *tx_fifo = svm_fifo_segment_alloc_fifo (fifo_segment, tx_fifo_size, - FIFO_SEGMENT_TX_FREELIST); + tx_fifo_size = clib_max (tx_fifo_size, sm_main.default_fifo_size); + *tx_fifo = fifo_segment_alloc_fifo (fifo_segment, tx_fifo_size, + FIFO_SEGMENT_TX_FIFO); if (*rx_fifo == 0) { /* This would be very odd, but handle it... */ if (*tx_fifo != 0) { - svm_fifo_segment_free_fifo (fifo_segment, *tx_fifo, - FIFO_SEGMENT_TX_FREELIST); + fifo_segment_free_fifo (fifo_segment, *tx_fifo); *tx_fifo = 0; } return -1; @@ -499,8 +528,7 @@ segment_manager_try_alloc_fifos (svm_fifo_segment_private_t * fifo_segment, { if (*rx_fifo != 0) { - svm_fifo_segment_free_fifo (fifo_segment, *rx_fifo, - FIFO_SEGMENT_RX_FREELIST); + fifo_segment_free_fifo (fifo_segment, *rx_fifo); *rx_fifo = 0; } return -1; @@ -514,12 +542,12 @@ segment_manager_alloc_session_fifos (segment_manager_t * sm, svm_fifo_t ** rx_fifo, svm_fifo_t ** tx_fifo) { - svm_fifo_segment_private_t *fifo_segment = 0; int alloc_fail = 1, rv = 0, new_fs_index; - segment_manager_properties_t *props; - u32 sm_index, fifo_segment_index; + segment_manager_props_t *props; + fifo_segment_t *fs = 0; + u32 sm_index, fs_index; u8 added_a_segment = 0; - u64 segment_handle; + u64 fs_handle; props = segment_manager_properties_get (sm); @@ -528,8 +556,8 @@ segment_manager_alloc_session_fifos (segment_manager_t * sm, */ /* *INDENT-OFF* */ - segment_manager_foreach_segment_w_lock (fifo_segment, sm, ({ - alloc_fail = segment_manager_try_alloc_fifos (fifo_segment, + segment_manager_foreach_segment_w_lock (fs, sm, ({ + alloc_fail = segment_manager_try_alloc_fifos (fs, props->rx_fifo_size, props->tx_fifo_size, rx_fifo, tx_fifo); @@ -548,18 +576,18 @@ alloc_check: ASSERT (rx_fifo && tx_fifo); sm_index = segment_manager_index (sm); - fifo_segment_index = segment_manager_segment_index (sm, fifo_segment); + fs_index = segment_manager_segment_index (sm, fs); (*tx_fifo)->segment_manager = sm_index; (*rx_fifo)->segment_manager = sm_index; - (*tx_fifo)->segment_index = fifo_segment_index; - (*rx_fifo)->segment_index = fifo_segment_index; + (*tx_fifo)->segment_index = fs_index; + (*rx_fifo)->segment_index = fs_index; if (added_a_segment) { app_worker_t *app_wrk; - segment_handle = segment_manager_segment_handle (sm, fifo_segment); + fs_handle = segment_manager_segment_handle (sm, fs); app_wrk = app_worker_get (sm->app_wrk_index); - rv = app_worker_add_segment_notify (app_wrk, segment_handle); + rv = app_worker_add_segment_notify (app_wrk, fs_handle); } /* Drop the lock after app is notified */ segment_manager_segment_reader_unlock (sm); @@ -582,9 +610,8 @@ alloc_check: clib_warning ("Failed to add new segment"); return SESSION_ERROR_SEG_CREATE; } - fifo_segment = segment_manager_get_segment_w_lock (sm, new_fs_index); - alloc_fail = segment_manager_try_alloc_fifos (fifo_segment, - props->rx_fifo_size, + fs = segment_manager_get_segment_w_lock (sm, new_fs_index); + alloc_fail = segment_manager_try_alloc_fifos (fs, props->rx_fifo_size, props->tx_fifo_size, rx_fifo, tx_fifo); added_a_segment = 1; @@ -600,7 +627,7 @@ alloc_check: void segment_manager_dealloc_fifos (svm_fifo_t * rx_fifo, svm_fifo_t * tx_fifo) { - svm_fifo_segment_private_t *fifo_segment; + fifo_segment_t *fs; segment_manager_t *sm; u32 segment_index; @@ -613,11 +640,9 @@ segment_manager_dealloc_fifos (svm_fifo_t * rx_fifo, svm_fifo_t * tx_fifo) return; segment_index = rx_fifo->segment_index; - fifo_segment = segment_manager_get_segment_w_lock (sm, segment_index); - svm_fifo_segment_free_fifo (fifo_segment, rx_fifo, - FIFO_SEGMENT_RX_FREELIST); - svm_fifo_segment_free_fifo (fifo_segment, tx_fifo, - FIFO_SEGMENT_TX_FREELIST); + fs = segment_manager_get_segment_w_lock (sm, segment_index); + fifo_segment_free_fifo (fs, rx_fifo); + fifo_segment_free_fifo (fs, tx_fifo); /* * Try to remove svm segment if it has no fifos. This can be done only if @@ -625,7 +650,7 @@ segment_manager_dealloc_fifos (svm_fifo_t * rx_fifo, svm_fifo_t * tx_fifo) * and it is not protected. Moreover, if the segment is first and the app * has detached from the segment manager, remove the segment manager. */ - if (!svm_fifo_segment_has_fifos (fifo_segment)) + if (!fifo_segment_has_fifos (fs)) { segment_manager_segment_reader_unlock (sm); @@ -637,7 +662,7 @@ segment_manager_dealloc_fifos (svm_fifo_t * rx_fifo, svm_fifo_t * tx_fifo) if (segment_manager_app_detached (sm) && !segment_manager_has_fifos (sm)) { - segment_manager_del (sm); + segment_manager_free (sm); } } else @@ -667,8 +692,8 @@ segment_manager_evt_q_expected_size (u32 q_len) * Must be called with lock held */ svm_msg_q_t * -segment_manager_alloc_queue (svm_fifo_segment_private_t * segment, - segment_manager_properties_t * props) +segment_manager_alloc_queue (fifo_segment_t * segment, + segment_manager_props_t * props) { u32 fifo_evt_size, session_evt_size = 256, notif_q_size; svm_msg_q_cfg_t _cfg, *cfg = &_cfg; @@ -700,13 +725,19 @@ segment_manager_alloc_queue (svm_fifo_segment_private_t * segment, return q; } +svm_msg_q_t * +segment_manager_event_queue (segment_manager_t * sm) +{ + return sm->event_queue; +} + /** * Frees shm queue allocated in the first segment */ void segment_manager_dealloc_queue (segment_manager_t * sm, svm_queue_t * q) { - svm_fifo_segment_private_t *segment; + fifo_segment_t *segment; ssvm_shared_header_t *sh; void *oldheap; @@ -727,21 +758,25 @@ segment_manager_dealloc_queue (segment_manager_t * sm, svm_queue_t * q) void segment_manager_main_init (segment_manager_main_init_args_t * a) { - segment_manager_main_t *sm = &segment_manager_main; + segment_manager_main_t *sm = &sm_main; clib_valloc_chunk_t _ip, *ip = &_ip; ip->baseva = a->baseva; ip->size = a->size; clib_valloc_init (&sm->va_allocator, ip, 1 /* lock */ ); + + sm->default_fifo_size = 1 << 12; + sm->default_segment_size = 1 << 20; + sm->default_app_mq_size = 128; } static clib_error_t * segment_manager_show_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { - segment_manager_main_t *smm = &segment_manager_main; - svm_fifo_segment_private_t *seg; + segment_manager_main_t *smm = &sm_main; + fifo_segment_t *seg; segment_manager_t *sm; u8 show_segments = 0, verbose = 0; char *address; @@ -782,15 +817,15 @@ segment_manager_show_fn (vlib_main_t * vm, unformat_input_t * input, /* *INDENT-OFF* */ pool_foreach (sm, smm->segment_managers, ({ segment_manager_foreach_segment_w_lock (seg, sm, ({ - svm_fifo_segment_info (seg, &address, &size); - active_fifos = svm_fifo_segment_num_fifos (seg); - free_fifos = svm_fifo_segment_num_free_fifos (seg, ~0 /* size */); + fifo_segment_info (seg, &address, &size); + active_fifos = fifo_segment_num_fifos (seg); + free_fifos = fifo_segment_num_free_fifos (seg, ~0 /* size */); vlib_cli_output (vm, "%-15v%15U%15llu%15u%15u%15llx", - ssvm_name (&seg->ssvm), format_svm_fifo_segment_type, + ssvm_name (&seg->ssvm), format_fifo_segment_type, seg, size >> 20ULL, active_fifos, free_fifos, address); if (verbose) - vlib_cli_output (vm, "%U", format_svm_fifo_segment, seg, verbose); + vlib_cli_output (vm, "%U", format_fifo_segment, seg, verbose); })); })); /* *INDENT-ON* */ @@ -808,6 +843,66 @@ VLIB_CLI_COMMAND (segment_manager_show_command, static) = }; /* *INDENT-ON* */ +void +segment_manager_format_sessions (segment_manager_t * sm, int verbose) +{ + fifo_segment_t *fifo_segment; + vlib_main_t *vm = vlib_get_main (); + app_worker_t *app_wrk; + const u8 *app_name; + u8 *s = 0; + + if (!sm) + { + if (verbose) + vlib_cli_output (vm, "%-40s%-20s%-15s%-10s", "Connection", "App", + "API Client", "SegManager"); + else + vlib_cli_output (vm, "%-40s%-20s", "Connection", "App"); + return; + } + + app_wrk = app_worker_get (sm->app_wrk_index); + app_name = application_name_from_index (app_wrk->app_index); + + clib_rwlock_reader_lock (&sm->segments_rwlock); + + /* *INDENT-OFF* */ + pool_foreach (fifo_segment, sm->segments, ({ + svm_fifo_t *fifo; + u8 *str; + + fifo = fifo_segment_get_fifo_list (fifo_segment); + while (fifo) + { + u32 session_index, thread_index; + session_t *session; + + session_index = fifo->master_session_index; + thread_index = fifo->master_thread_index; + + session = session_get (session_index, thread_index); + str = format (0, "%U", format_session, session, verbose); + + if (verbose) + s = format (s, "%-40s%-20s%-15u%-10u", str, app_name, + app_wrk->api_client_index, app_wrk->connects_seg_manager); + else + s = format (s, "%-40s%-20s", str, app_name); + + vlib_cli_output (vm, "%v", s); + vec_reset_length (s); + vec_free (str); + + fifo = fifo->next; + } + vec_free (s); + })); + /* *INDENT-ON* */ + + clib_rwlock_reader_unlock (&sm->segments_rwlock); +} + /* * fd.io coding-style-patch-verification: ON * diff --git a/src/vnet/session/segment_manager.h b/src/vnet/session/segment_manager.h index 2b6f43feba7..4f30b7a8d2c 100644 --- a/src/vnet/session/segment_manager.h +++ b/src/vnet/session/segment_manager.h @@ -15,14 +15,12 @@ #ifndef SRC_VNET_SESSION_SEGMENT_MANAGER_H_ #define SRC_VNET_SESSION_SEGMENT_MANAGER_H_ -#include <vnet/vnet.h> -#include <svm/svm_fifo_segment.h> #include <svm/message_queue.h> -#include <vlibmemory/api.h> #include <vppinfra/lock.h> #include <vppinfra/valloc.h> +#include <svm/fifo_segment.h> -typedef struct _segment_manager_properties +typedef struct _segment_manager_props { u32 rx_fifo_size; /**< receive fifo size */ u32 tx_fifo_size; /**< transmit fifo size */ @@ -35,12 +33,12 @@ typedef struct _segment_manager_properties u8 reserved:6; /**< reserved flags */ ssvm_segment_type_t segment_type; /**< seg type: if set to SSVM_N_TYPES, private segments are used */ -} segment_manager_properties_t; +} segment_manager_props_t; typedef struct _segment_manager { /** Pool of segments allocated by this manager */ - svm_fifo_segment_private_t *segments; + fifo_segment_t *segments; /** rwlock that protects the segments pool */ clib_rwlock_t segments_rwlock; @@ -61,25 +59,6 @@ typedef struct _segment_manager svm_msg_q_t *event_queue; } segment_manager_t; -#define segment_manager_foreach_segment_w_lock(VAR, SM, BODY) \ -do { \ - clib_rwlock_reader_lock (&(SM)->segments_rwlock); \ - pool_foreach((VAR), ((SM)->segments), (BODY)); \ - clib_rwlock_reader_unlock (&(SM)->segments_rwlock); \ -} while (0) - -typedef struct segment_manager_main_ -{ - /** Pool of segment managers */ - segment_manager_t *segment_managers; - - /** Virtual address allocator */ - clib_valloc_main_t va_allocator; - -} segment_manager_main_t; - -extern segment_manager_main_t segment_manager_main; - typedef struct segment_manager_main_init_args_ { u64 baseva; @@ -88,86 +67,78 @@ typedef struct segment_manager_main_init_args_ #define SEGMENT_MANAGER_INVALID_APP_INDEX ((u32) ~0) -/** Pool of segment managers */ -extern segment_manager_t *segment_managers; - -always_inline segment_manager_t * -segment_manager_get (u32 index) -{ - return pool_elt_at_index (segment_manager_main.segment_managers, index); -} - -always_inline segment_manager_t * -segment_manager_get_if_valid (u32 index) -{ - if (pool_is_free_index (segment_manager_main.segment_managers, index)) - return 0; - return pool_elt_at_index (segment_manager_main.segment_managers, index); -} - -always_inline u32 -segment_manager_index (segment_manager_t * sm) -{ - return sm - segment_manager_main.segment_managers; -} - -always_inline svm_msg_q_t * -segment_manager_event_queue (segment_manager_t * sm) -{ - return sm->event_queue; -} - -always_inline u64 -segment_manager_make_segment_handle (u32 segment_manager_index, - u32 segment_index) -{ - return (((u64) segment_manager_index << 32) | segment_index); -} - -u64 segment_manager_segment_handle (segment_manager_t * sm, - svm_fifo_segment_private_t * segment); - -segment_manager_t *segment_manager_new (); +segment_manager_t *segment_manager_alloc (void); int segment_manager_init (segment_manager_t * sm, u32 first_seg_size, u32 prealloc_fifo_pairs); -svm_fifo_segment_private_t *segment_manager_get_segment (segment_manager_t *, - u32 segment_index); -svm_fifo_segment_private_t *segment_manager_get_segment_w_handle (u64); -svm_fifo_segment_private_t - * segment_manager_get_segment_w_lock (segment_manager_t * sm, - u32 segment_index); +/** + * Cleanup segment manager + * + * @param sm segment manager to be freed + */ +void segment_manager_free (segment_manager_t * sm); + +/** + * Initiate segment manager cleanup + * + * @param sm segment manager to be freed + */ +void segment_manager_init_free (segment_manager_t * sm); +segment_manager_t *segment_manager_get (u32 index); +segment_manager_t *segment_manager_get_if_valid (u32 index); +u32 segment_manager_index (segment_manager_t * sm); + int segment_manager_add_segment (segment_manager_t * sm, u32 segment_size); void segment_manager_del_segment (segment_manager_t * sm, - svm_fifo_segment_private_t * fs); + fifo_segment_t * fs); +fifo_segment_t *segment_manager_get_segment (segment_manager_t * sm, + u32 segment_index); +fifo_segment_t *segment_manager_get_segment_w_handle (u64 sh); +fifo_segment_t *segment_manager_get_segment_w_lock (segment_manager_t *, + u32 segment_index); +int segment_manager_add_first_segment (segment_manager_t * sm, + u32 segment_size); +u64 segment_manager_make_segment_handle (u32 segment_manager_index, + u32 segment_index); +u64 segment_manager_segment_handle (segment_manager_t * sm, + fifo_segment_t * segment); void segment_manager_segment_reader_unlock (segment_manager_t * sm); void segment_manager_segment_writer_unlock (segment_manager_t * sm); -int segment_manager_add_first_segment (segment_manager_t * sm, - u32 segment_size); -void segment_manager_del_sessions (segment_manager_t * sm); -void segment_manager_del (segment_manager_t * sm); -void segment_manager_init_del (segment_manager_t * sm); -u8 segment_manager_has_fifos (segment_manager_t * sm); int segment_manager_alloc_session_fifos (segment_manager_t * sm, - svm_fifo_t ** server_rx_fifo, - svm_fifo_t ** server_tx_fifo); -int segment_manager_try_alloc_fifos (svm_fifo_segment_private_t * fs, + svm_fifo_t ** rx_fifo, + svm_fifo_t ** tx_fifo); +int segment_manager_try_alloc_fifos (fifo_segment_t * fs, u32 rx_fifo_size, u32 tx_fifo_size, svm_fifo_t ** rx_fifo, svm_fifo_t ** tx_fifo); void segment_manager_dealloc_fifos (svm_fifo_t * rx_fifo, svm_fifo_t * tx_fifo); -u32 segment_manager_evt_q_expected_size (u32 q_size); -svm_msg_q_t *segment_manager_alloc_queue (svm_fifo_segment_private_t * fs, - segment_manager_properties_t * - props); +u8 segment_manager_has_fifos (segment_manager_t * sm); + +svm_msg_q_t *segment_manager_alloc_queue (fifo_segment_t * fs, + segment_manager_props_t * props); void segment_manager_dealloc_queue (segment_manager_t * sm, svm_queue_t * q); +svm_msg_q_t *segment_manager_event_queue (segment_manager_t * sm); +u32 segment_manager_evt_q_expected_size (u32 q_size); + void segment_manager_app_detach (segment_manager_t * sm); +/** + * Cleanup segment manager sessions + * + * Initiates disconnects for all sessions 'owned' by a segment manager by + * leveraging the backpointers that fifos keep. + * + * @param sm segment manager whose sessions are to be disconnected + */ +void segment_manager_del_sessions (segment_manager_t * sm); +void segment_manager_format_sessions (segment_manager_t * sm, int verbose); + void segment_manager_main_init (segment_manager_main_init_args_t * a); -segment_manager_properties_t - * segment_manager_properties_init (segment_manager_properties_t * sm); + +segment_manager_props_t *segment_manager_props_init (segment_manager_props_t * + sm); #endif /* SRC_VNET_SESSION_SEGMENT_MANAGER_H_ */ /* diff --git a/src/vnet/session/session_api.c b/src/vnet/session/session_api.c index 0a7781f2876..83af125946e 100755 --- a/src/vnet/session/session_api.c +++ b/src/vnet/session/session_api.c @@ -83,8 +83,8 @@ send_add_segment_callback (u32 api_client_index, u64 segment_handle) { int fds[SESSION_N_FD_TYPE], n_fds = 0; vl_api_map_another_segment_t *mp; - svm_fifo_segment_private_t *fs; vl_api_registration_t *reg; + fifo_segment_t *fs; ssvm_private_t *sp; u8 fd_flags = 0; |