From c87c91d8b0e85997debaf575f2e30cc2702edf25 Mon Sep 17 00:00:00 2001 From: Florin Coras Date: Wed, 16 Aug 2017 19:55:49 -0700 Subject: session: segment manager improvements - cleanup connects segment manager even if first - fix segment manager allocation for listen sessions - improve handling of process private segments (mheaps/main heap) - added segment manager cli Change-Id: Ic2ca97c3622ab2286d5fb5772aeb57680e64f769 Signed-off-by: Florin Coras Signed-off-by: Dave Wallace --- src/vnet/session/application.c | 71 ++++++-- src/vnet/session/application.h | 8 +- src/vnet/session/segment_manager.c | 365 +++++++++++++++++++++++++------------ src/vnet/session/segment_manager.h | 29 +-- src/vnet/session/session.c | 9 +- src/vnet/session/session_cli.c | 19 +- src/vnet/session/session_node.c | 3 +- 7 files changed, 341 insertions(+), 163 deletions(-) (limited to 'src/vnet/session') diff --git a/src/vnet/session/application.c b/src/vnet/session/application.c index 25a4efa50aa..d105119c557 100644 --- a/src/vnet/session/application.c +++ b/src/vnet/session/application.c @@ -80,8 +80,8 @@ application_new () pool_get (app_pool, app); memset (app, 0, sizeof (*app)); app->index = application_get_index (app); - app->connects_seg_manager = ~0; - app->first_segment_manager = ~0; + app->connects_seg_manager = APP_INVALID_SEGMENT_MANAGER_INDEX; + app->first_segment_manager = APP_INVALID_SEGMENT_MANAGER_INDEX; if (CLIB_DEBUG > 1) clib_warning ("[%d] New app (%d)", getpid (), app->index); return app; @@ -104,14 +104,8 @@ application_del (application_t * app) clib_warning ("[%d] Delete app (%d)", getpid (), app->index); /* - * Cleanup segment managers + * Listener cleanup */ - if ((app->connects_seg_manager != (u32) ~ 0) && - (app->connects_seg_manager != app->first_segment_manager)) - { - sm = segment_manager_get (app->connects_seg_manager); - segment_manager_del (sm); - } /* *INDENT-OFF* */ hash_foreach (handle, index, app->listeners_table, @@ -120,7 +114,6 @@ application_del (application_t * app) })); /* *INDENT-ON* */ - /* Actual listener cleanup */ for (i = 0; i < vec_len (handles); i++) { a->app_index = app->index; @@ -129,10 +122,30 @@ application_del (application_t * app) vnet_unbind (a); } - if (app->first_segment_manager != ~0) + /* + * Connects segment manager cleanup + */ + + if (app->connects_seg_manager != APP_INVALID_SEGMENT_MANAGER_INDEX) + { + sm = segment_manager_get (app->connects_seg_manager); + sm->app_index = SEGMENT_MANAGER_INVALID_APP_INDEX; + segment_manager_init_del (sm); + } + + + /* If first segment manager is used by a listener */ + if (app->first_segment_manager != APP_INVALID_SEGMENT_MANAGER_INDEX + && app->first_segment_manager != app->connects_seg_manager) { sm = segment_manager_get (app->first_segment_manager); - segment_manager_first_segment_maybe_del (sm); + /* .. and has no fifos, e.g. it might be used for redirected sessions, + * remove it */ + if (!segment_manager_has_fifos (sm)) + { + sm->app_index = SEGMENT_MANAGER_INVALID_APP_INDEX; + segment_manager_del (sm); + } } application_table_del (app); @@ -159,6 +172,7 @@ application_init (application_t * app, u32 api_client_index, u64 * options, segment_manager_t *sm; segment_manager_properties_t *props; u32 app_evt_queue_size, first_seg_size; + u32 default_rx_fifo_size = 16 << 10, default_tx_fifo_size = 16 << 10; int rv; app_evt_queue_size = options[APP_EVT_QUEUE_SIZE] > 0 ? @@ -170,7 +184,11 @@ application_init (application_t * app, u32 api_client_index, u64 * options, props = &app->sm_properties; props->add_segment_size = options[SESSION_OPTIONS_ADD_SEGMENT_SIZE]; props->rx_fifo_size = options[SESSION_OPTIONS_RX_FIFO_SIZE]; + props->rx_fifo_size = + props->rx_fifo_size ? props->rx_fifo_size : default_rx_fifo_size; props->tx_fifo_size = options[SESSION_OPTIONS_TX_FIFO_SIZE]; + props->tx_fifo_size = + props->tx_fifo_size ? props->tx_fifo_size : default_tx_fifo_size; props->add_segment = props->add_segment_size != 0; props->preallocated_fifo_pairs = options[APP_OPTIONS_PREALLOC_FIFO_PAIRS]; props->use_private_segment = options[APP_OPTIONS_FLAGS] @@ -181,6 +199,7 @@ application_init (application_t * app, u32 api_client_index, u64 * options, first_seg_size = options[SESSION_OPTIONS_SEGMENT_SIZE]; if ((rv = segment_manager_init (sm, props, first_seg_size))) return rv; + sm->first_is_protected = 1; app->first_segment_manager = segment_manager_index (sm); app->api_client_index = api_client_index; @@ -225,7 +244,8 @@ application_alloc_segment_manager (application_t * app) { segment_manager_t *sm = 0; - if (app->first_segment_manager != (u32) ~ 0 + /* If the first segment manager is not in use, don't allocate a new one */ + if (app->first_segment_manager != APP_INVALID_SEGMENT_MANAGER_INDEX && app->first_segment_manager_in_use == 0) { sm = segment_manager_get (app->first_segment_manager); @@ -302,11 +322,15 @@ application_stop_listen (application_t * srv, u64 handle) ASSERT (indexp); sm = segment_manager_get (*indexp); - segment_manager_del (sm); if (srv->first_segment_manager == *indexp) { + /* Delete sessions but don't remove segment manager */ srv->first_segment_manager_in_use = 0; - srv->first_segment_manager = ~0; + segment_manager_del_sessions (sm); + } + else + { + segment_manager_init_del (sm); } hash_unset (srv->listeners_table, handle); listen_session_del (listener); @@ -379,6 +403,21 @@ application_is_proxy (application_t * app) return !(app->flags & APP_OPTIONS_FLAGS_IS_PROXY); } +int +application_add_segment_notify (u32 app_index, u32 fifo_segment_index) +{ + application_t *app = application_get (app_index); + u32 seg_size = 0; + u8 *seg_name; + + /* Send an API message to the external app, to map new segment */ + ASSERT (app->cb_fns.add_segment_callback); + + segment_manager_get_segment_info (fifo_segment_index, &seg_name, &seg_size); + return app->cb_fns.add_segment_callback (app->api_client_index, seg_name, + seg_size); +} + u8 * format_application_listener (u8 * s, va_list * args) { @@ -449,7 +488,7 @@ application_format_connects (application_t * app, int verbose) svm_fifo_t *fifo; u8 *str; - fifo_segment = svm_fifo_get_segment (sm->segment_indices[j]); + fifo_segment = svm_fifo_segment_get_segment (sm->segment_indices[j]); fifo = svm_fifo_segment_get_fifo_list (fifo_segment); while (fifo) { diff --git a/src/vnet/session/application.h b/src/vnet/session/application.h index 95a39c05480..e030c376d83 100644 --- a/src/vnet/session/application.h +++ b/src/vnet/session/application.h @@ -82,9 +82,12 @@ typedef struct _application */ u32 connects_seg_manager; - /* Lookup tables for listeners. Value is segment manager index */ + /** Lookup tables for listeners. Value is segment manager index */ uword *listeners_table; + /** First segment manager has in the the first segment the application's + * event fifo. Depending on what the app does, it may be either used for + * a listener or for connects. */ u32 first_segment_manager; u8 first_segment_manager_in_use; @@ -92,6 +95,8 @@ typedef struct _application segment_manager_properties_t sm_properties; } application_t; +#define APP_INVALID_SEGMENT_MANAGER_INDEX ((u32) ~0) + application_t *application_new (); int application_init (application_t * app, u32 api_client_index, u64 * options, @@ -118,6 +123,7 @@ segment_manager_t *application_get_listen_segment_manager (application_t * segment_manager_t *application_get_connect_segment_manager (application_t * app); int application_is_proxy (application_t * app); +int application_add_segment_notify (u32 app_index, u32 fifo_segment_index); #endif /* SRC_VNET_SESSION_APPLICATION_H_ */ diff --git a/src/vnet/session/segment_manager.c b/src/vnet/session/segment_manager.c index 43977063e0e..7cf66ee35b2 100644 --- a/src/vnet/session/segment_manager.c +++ b/src/vnet/session/segment_manager.c @@ -42,7 +42,7 @@ void segment_manager_get_segment_info (u32 index, u8 ** name, u32 * size) { svm_fifo_segment_private_t *s; - s = svm_fifo_get_segment (index); + s = svm_fifo_segment_get_segment (index); *name = s->h->segment_name; *size = s->ssvm.ssvm_size; } @@ -56,23 +56,39 @@ session_manager_add_segment_i (segment_manager_t * sm, u32 segment_size, memset (ca, 0, sizeof (*ca)); - ca->segment_name = (char *) segment_name; - ca->segment_size = segment_size; - ca->rx_fifo_size = sm->properties->rx_fifo_size; - ca->tx_fifo_size = sm->properties->tx_fifo_size; - ca->preallocated_fifo_pairs = sm->properties->preallocated_fifo_pairs; + if (!sm->properties->use_private_segment) + { + ca->segment_name = (char *) segment_name; + ca->segment_size = segment_size; + ca->rx_fifo_size = sm->properties->rx_fifo_size; + ca->tx_fifo_size = sm->properties->tx_fifo_size; + ca->preallocated_fifo_pairs = sm->properties->preallocated_fifo_pairs; - rv = svm_fifo_segment_create (ca); - if (rv) + rv = svm_fifo_segment_create (ca); + if (rv) + { + clib_warning ("svm_fifo_segment_create ('%s', %d) failed", + ca->segment_name, ca->segment_size); + return VNET_API_ERROR_SVM_SEGMENT_CREATE_FAIL; + } + } + else { - clib_warning ("svm_fifo_segment_create ('%s', %d) failed", - ca->segment_name, ca->segment_size); - return VNET_API_ERROR_SVM_SEGMENT_CREATE_FAIL; + ca->segment_name = "process-private-segment"; + ca->segment_size = ~0; + ca->rx_fifo_size = sm->properties->rx_fifo_size; + ca->tx_fifo_size = sm->properties->tx_fifo_size; + ca->preallocated_fifo_pairs = sm->properties->preallocated_fifo_pairs; + ca->private_segment_count = sm->properties->private_segment_count; + ca->private_segment_size = sm->properties->private_segment_size; + + if (svm_fifo_segment_create_process_private (ca)) + clib_warning ("Failed to create process private segment"); + + ASSERT (vec_len (ca->new_segment_indices)); } - vec_append (sm->segment_indices, ca->new_segment_indices); vec_free (ca->new_segment_indices); - return 0; } @@ -106,29 +122,13 @@ session_manager_add_first_segment (segment_manager_t * sm, u32 segment_size) return rv; } -static void - segment_manager_alloc_process_private_segment - (segment_manager_properties_t * props) +segment_manager_t * +segment_manager_new () { - svm_fifo_segment_create_args_t _a, *a = &_a; - - if (private_segment_indices) - return; - - memset (a, 0, sizeof (*a)); - a->segment_name = "process-private-segment"; - a->segment_size = ~0; - a->rx_fifo_size = props->rx_fifo_size; - a->tx_fifo_size = props->tx_fifo_size; - a->preallocated_fifo_pairs = props->preallocated_fifo_pairs; - a->private_segment_count = props->private_segment_count; - a->private_segment_size = props->private_segment_size; - - if (svm_fifo_segment_create_process_private (a)) - clib_warning ("Failed to create process private segment"); - - private_segment_indices = a->new_segment_indices; - ASSERT (vec_len (private_segment_indices)); + segment_manager_t *sm; + pool_get (segment_managers, sm); + memset (sm, 0, sizeof (*sm)); + return sm; } /** @@ -147,65 +147,73 @@ segment_manager_init (segment_manager_t * sm, first_seg_size = first_seg_size > 0 ? first_seg_size : default_segment_size; - if (sm->properties->use_private_segment == 0) - { - rv = session_manager_add_first_segment (sm, first_seg_size); - if (rv) - { - clib_warning ("Failed to allocate segment"); - return rv; - } - } - else + rv = session_manager_add_first_segment (sm, first_seg_size); + if (rv) { - if (vec_len (private_segment_indices) == 0) - segment_manager_alloc_process_private_segment (properties); - ASSERT (vec_len (private_segment_indices)); - vec_append (sm->segment_indices, private_segment_indices); + clib_warning ("Failed to allocate segment"); + return rv; } clib_spinlock_init (&sm->lockp); return 0; } -void -segment_manager_first_segment_maybe_del (segment_manager_t * sm) +u8 +segment_manager_has_fifos (segment_manager_t * sm) { - svm_fifo_segment_private_t *fifo_segment; - - /* If the first semgment has no fifos, then delete the 1st segment - */ - fifo_segment = svm_fifo_get_segment (sm->segment_indices[0]); - if (!svm_fifo_segment_has_fifos (fifo_segment)) + svm_fifo_segment_private_t *segment; + /* Weird, but handle it */ + if (vec_len (sm->segment_indices) == 0) + return 0; + if (vec_len (sm->segment_indices) == 1) { - clib_spinlock_lock (&sm->lockp); - svm_fifo_segment_delete (fifo_segment); - vec_del1 (sm->segment_indices, 0); - clib_spinlock_unlock (&sm->lockp); + segment = svm_fifo_segment_get_segment (sm->segment_indices[0]); + if (svm_fifo_segment_num_fifos (segment) == 0) + return 0; } + if (CLIB_DEBUG) + { + svm_fifo_segment_private_t *segment; + int i; + for (i = 1; i < vec_len (sm->segment_indices); i++) + { + segment = svm_fifo_segment_get_segment (sm->segment_indices[i]); + if (!svm_fifo_segment_has_fifos (segment)) + clib_warning ("segment has no fifos!"); + } + } + return 1; } - /** - * 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 propages into transport. +static void +segment_manager_del_segment (segment_manager_t * sm, u32 segment_index) +{ + svm_fifo_segment_private_t *fifo_segment; + u32 svm_segment_index; + clib_spinlock_lock (&sm->lockp); + svm_segment_index = sm->segment_indices[segment_index]; + fifo_segment = svm_fifo_segment_get_segment (svm_segment_index); + svm_fifo_segment_delete (fifo_segment); + vec_del1 (sm->segment_indices, segment_index); + clib_spinlock_unlock (&sm->lockp); +} + +/** + * Initiate disconnects for all sessions 'owned' by a segment manager */ void -segment_manager_del (segment_manager_t * sm) +segment_manager_del_sessions (segment_manager_t * sm) { int j; svm_fifo_segment_private_t *fifo_segment; + svm_fifo_t *fifo; + ASSERT (vec_len (sm->segment_indices)); /* Across all fifo segments used by the server */ for (j = 0; j < vec_len (sm->segment_indices); j++) { - svm_fifo_t *fifo; - - /* Vector of fifos allocated in the segment */ - fifo_segment = svm_fifo_get_segment (sm->segment_indices[j]); + fifo_segment = svm_fifo_segment_get_segment (sm->segment_indices[j]); fifo = svm_fifo_segment_get_fifo_list (fifo_segment); /* @@ -220,14 +228,17 @@ segment_manager_del (segment_manager_t * sm) session_index = fifo->master_session_index; thread_index = fifo->master_thread_index; - session = stream_session_get (session_index, thread_index); /* Instead of directly removing the session call disconnect */ - session->session_state = SESSION_STATE_CLOSED; - session_send_session_evt_to_thread (stream_session_handle (session), - FIFO_EVENT_DISCONNECT, - thread_index); + if (session->session_state != SESSION_STATE_CLOSED) + { + session->session_state = SESSION_STATE_CLOSED; + session_send_session_evt_to_thread (stream_session_handle + (session), + FIFO_EVENT_DISCONNECT, + thread_index); + } fifo = fifo->next; } @@ -235,27 +246,51 @@ segment_manager_del (segment_manager_t * sm) * sessions if the segment can be removed. */ } +} - segment_manager_first_segment_maybe_del (sm); +/** + * 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 propages into transport. + */ +void +segment_manager_del (segment_manager_t * sm) +{ + ASSERT (vec_len (sm->segment_indices) <= 1); + if (vec_len (sm->segment_indices)) + { + /* 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. */ + if (CLIB_DEBUG) + { + svm_fifo_segment_private_t *fifo_segment; + fifo_segment = + svm_fifo_segment_get_segment (sm->segment_indices[0]); + ASSERT (!svm_fifo_segment_has_fifos (fifo_segment)); + } + segment_manager_del_segment (sm, 0); + } clib_spinlock_free (&sm->lockp); + if (CLIB_DEBUG) + memset (sm, 0xfe, sizeof (*sm)); pool_put (segment_managers, sm); } -static int -segment_manager_notify_app_seg_add (segment_manager_t * sm, - u32 fifo_segment_index) +void +segment_manager_init_del (segment_manager_t * sm) { - application_t *app = application_get (sm->app_index); - u32 seg_size = 0; - u8 *seg_name; - - /* Send an API message to the external app, to map new segment */ - ASSERT (app->cb_fns.add_segment_callback); - - segment_manager_get_segment_info (fifo_segment_index, &seg_name, &seg_size); - return app->cb_fns.add_segment_callback (app->api_client_index, seg_name, - seg_size); + if (segment_manager_has_fifos (sm)) + segment_manager_del_sessions (sm); + else + { + ASSERT (!sm->first_is_protected + || sm->app_index == SEGMENT_MANAGER_INVALID_APP_INDEX); + segment_manager_del (sm); + } } int @@ -280,16 +315,14 @@ again: for (i = 0; i < vec_len (sm->segment_indices); i++) { *fifo_segment_index = sm->segment_indices[i]; - fifo_segment = svm_fifo_get_segment (*fifo_segment_index); + fifo_segment = svm_fifo_segment_get_segment (*fifo_segment_index); - /* FC: cleanup, make sure sm->properties->xxx_fifo_size always set */ fifo_size = sm->properties->rx_fifo_size; fifo_size = (fifo_size == 0) ? default_fifo_size : fifo_size; *server_rx_fifo = svm_fifo_segment_alloc_fifo (fifo_segment, fifo_size, FIFO_SEGMENT_RX_FREELIST); - /* FC: cleanup, make sure sm->properties->xxx_fifo_size always set */ fifo_size = sm->properties->tx_fifo_size; fifo_size = (fifo_size == 0) ? default_fifo_size : fifo_size; *server_tx_fifo = @@ -327,7 +360,7 @@ again: { if (added_a_segment) { - clib_warning ("added a segment, still cant allocate a fifo"); + clib_warning ("added a segment, still can't allocate a fifo"); clib_spinlock_unlock (&sm->lockp); return SESSION_ERROR_NEW_SEG_NO_SPACE; } @@ -357,7 +390,8 @@ again: clib_spinlock_unlock (&sm->lockp); if (added_a_segment) - return segment_manager_notify_app_seg_add (sm, *fifo_segment_index); + return application_add_segment_notify (sm->app_index, + *fifo_segment_index); return 0; } @@ -368,32 +402,49 @@ segment_manager_dealloc_fifos (u32 svm_segment_index, svm_fifo_t * rx_fifo, { segment_manager_t *sm; svm_fifo_segment_private_t *fifo_segment; + u32 i, segment_index = ~0; + u8 is_first; sm = segment_manager_get_if_valid (rx_fifo->segment_manager); /* It's possible to have no segment manager if the session was removed - * as result of a detach */ + * as result of a detach. */ if (!sm) return; - fifo_segment = svm_fifo_get_segment (svm_segment_index); + fifo_segment = svm_fifo_segment_get_segment (svm_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); - /* Don't try to delete process-private segments */ - if (sm->properties->private_segment_count > 0) - return; - - /* Remove segment only if it holds no fifos and not the first */ - if (sm->segment_indices[0] != svm_segment_index - && !svm_fifo_segment_has_fifos (fifo_segment)) + /* + * Try to remove svm segment if it has no fifos. This can be done only if + * the segment is not the first in the segment manager or if it is first + * 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)) { - clib_spinlock_lock (&sm->lockp); - svm_fifo_segment_delete (fifo_segment); - vec_del1 (sm->segment_indices, svm_segment_index); - clib_spinlock_unlock (&sm->lockp); + is_first = sm->segment_indices[0] == svm_segment_index; + + /* Remove segment if it holds no fifos or first but not protected */ + if (!is_first || !sm->first_is_protected) + { + /* Find the segment manager segment index */ + for (i = 0; i < vec_len (sm->segment_indices); i++) + if (sm->segment_indices[i] == svm_segment_index) + { + segment_index = i; + break; + } + ASSERT (segment_index != (u32) ~ 0); + segment_manager_del_segment (sm, segment_index); + } + + /* Remove segment manager if no sessions and detached from app */ + if (sm->app_index == SEGMENT_MANAGER_INVALID_APP_INDEX && is_first) + segment_manager_del (sm); } } @@ -410,14 +461,14 @@ segment_manager_alloc_queue (segment_manager_t * sm, u32 queue_size) ASSERT (sm->segment_indices != 0); - segment = svm_fifo_get_segment (sm->segment_indices[0]); + segment = svm_fifo_segment_get_segment (sm->segment_indices[0]); sh = segment->ssvm.sh; oldheap = ssvm_push_heap (sh); - q = - unix_shared_memory_queue_init (queue_size, sizeof (session_fifo_event_t), - 0 /* consumer pid */ , 0 - /* signal when queue non-empty */ ); + q = unix_shared_memory_queue_init (queue_size, + sizeof (session_fifo_event_t), + 0 /* consumer pid */ , + 0 /* signal when queue non-empty */ ); ssvm_pop_heap (oldheap); return q; } @@ -435,7 +486,7 @@ segment_manager_dealloc_queue (segment_manager_t * sm, ASSERT (sm->segment_indices != 0); - segment = svm_fifo_get_segment (sm->segment_indices[0]); + segment = svm_fifo_segment_get_segment (sm->segment_indices[0]); sh = segment->ssvm.sh; oldheap = ssvm_push_heap (sh); @@ -443,6 +494,90 @@ segment_manager_dealloc_queue (segment_manager_t * sm, ssvm_pop_heap (oldheap); } +static clib_error_t * +segment_manager_show_fn (vlib_main_t * vm, unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + svm_fifo_segment_private_t *segments, *seg; + segment_manager_t *sm; + u8 show_segments = 0, verbose = 0, *name; + uword address; + u64 size; + u32 fifos; + mheap_t *heap_header; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "segments")) + show_segments = 1; + else if (unformat (input, "verbose")) + verbose = 1; + else + return clib_error_return (0, "unknown input `%U'", + format_unformat_error, input); + } + vlib_cli_output (vm, "%d segment managers allocated", + pool_elts (segment_managers)); + if (verbose && pool_elts (segment_managers)) + { + vlib_cli_output (vm, "%-10s%=15s%=12s", "Index", "App Index", + "Segments"); + + /* *INDENT-OFF* */ + pool_foreach (sm, segment_managers, ({ + vlib_cli_output (vm, "%-10d%=15d%=12d", segment_manager_index(sm), + sm->app_index, vec_len (sm->segment_indices)); + })); + /* *INDENT-ON* */ + + } + if (show_segments) + { + segments = svm_fifo_segment_segments_pool (); + vlib_cli_output (vm, "%d svm fifo segments allocated", + pool_elts (segments)); + vlib_cli_output (vm, "%-20s%=12s%=12s%=15s", "Name", "Size (M)", + "Fifos", "Address"); + + /* *INDENT-OFF* */ + pool_foreach (seg, segments, ({ + if (seg->h->flags & FIFO_SEGMENT_F_IS_PRIVATE) + { + address = pointer_to_uword (seg->ssvm.sh->heap); + if (seg->h->flags & FIFO_SEGMENT_F_IS_MAIN_HEAP) + name = format (0, "main heap"); + else + name = format (0, "private heap"); + heap_header = mheap_header (seg->ssvm.sh->heap); + size = heap_header->max_size; + } + else + { + address = seg->ssvm.sh->ssvm_va; + size = seg->ssvm.ssvm_size; + name = seg->ssvm.sh->name; + } + fifos = svm_fifo_segment_num_fifos (seg); + vlib_cli_output (vm, "%-20s%=12u%=12u%=15x", name, size << 20, fifos, + address); + if (seg->h->flags & FIFO_SEGMENT_F_IS_PRIVATE) + vec_free (name); + })); + /* *INDENT-ON* */ + + } + return 0; +} + + /* *INDENT-OFF* */ +VLIB_CLI_COMMAND (segment_manager_show_command, static) = +{ + .path = "show segment-manager", + .short_help = "show segment-manager [segments]", + .function = segment_manager_show_fn, +}; +/* *INDENT-ON* */ + /* * fd.io coding-style-patch-verification: ON * diff --git a/src/vnet/session/segment_manager.h b/src/vnet/session/segment_manager.h index 41abeb22947..6e5b8989891 100644 --- a/src/vnet/session/segment_manager.h +++ b/src/vnet/session/segment_manager.h @@ -55,23 +55,25 @@ typedef struct _segment_manager /** Owner app index */ u32 app_index; - /** Pointer to manager properties. Could be shared among all of - * an app's segment managers s*/ + /** + * Pointer to manager properties. Could be shared among all of + * an app's segment managers s + */ segment_manager_properties_t *properties; + + /** + * First segment should not be deleted unless segment manger is deleted. + * This also indicates that the segment manager is the first to have been + * allocated for the app. + */ + u8 first_is_protected; } segment_manager_t; +#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_new () -{ - segment_manager_t *sm; - pool_get (segment_managers, sm); - memset (sm, 0, sizeof (*sm)); - return sm; -} - always_inline segment_manager_t * segment_manager_get (u32 index) { @@ -92,6 +94,7 @@ segment_manager_index (segment_manager_t * sm) return sm - segment_managers; } +segment_manager_t *segment_manager_new (); int segment_manager_init (segment_manager_t * sm, segment_manager_properties_t * properties, @@ -100,9 +103,11 @@ segment_manager_init (segment_manager_t * sm, void segment_manager_get_segment_info (u32 index, u8 ** name, u32 * size); int session_manager_add_first_segment (segment_manager_t * sm, u32 segment_size); -void segment_manager_first_segment_maybe_del (segment_manager_t * sm); int session_manager_add_segment (segment_manager_t * sm); +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, diff --git a/src/vnet/session/session.c b/src/vnet/session/session.c index 6fe990476e7..ee22ccbe0ad 100644 --- a/src/vnet/session/session.c +++ b/src/vnet/session/session.c @@ -457,7 +457,10 @@ stream_session_connect_notify (transport_connection_t * tc, u8 is_fail) /* Get the app's index from the handle we stored when opening connection * and the opaque (api_context for external apps) from transport session * index*/ - app = application_get (handle >> 32); + app = application_get_if_valid (handle >> 32); + if (!app) + return -1; + opaque = tc->s_index; if (!is_fail) @@ -562,9 +565,7 @@ stream_session_delete_notify (transport_connection_t * tc) /* App might've been removed already */ s = stream_session_get_if_valid (tc->s_index, tc->thread_index); if (!s) - { - return; - } + return; stream_session_delete (s); } diff --git a/src/vnet/session/session_cli.c b/src/vnet/session/session_cli.c index f60048f1214..028dc9d8ad0 100755 --- a/src/vnet/session/session_cli.c +++ b/src/vnet/session/session_cli.c @@ -64,7 +64,8 @@ format_stream_session (u8 * s, va_list * args) stream_session_get_index (ss)); if (ss->session_state == SESSION_STATE_READY - || ss->session_state == SESSION_STATE_ACCEPTING) + || ss->session_state == SESSION_STATE_ACCEPTING + || ss->session_state == SESSION_STATE_CLOSED) { s = format (s, "%U", tp_vft->format_connection, ss->connection_index, ss->thread_index, verbose); @@ -83,16 +84,6 @@ format_stream_session (u8 * s, va_list * args) s = format (s, "%-40U%v", tp_vft->format_half_open, ss->connection_index, str); } - else if (ss->session_state == SESSION_STATE_CLOSED) - { - s = - format (s, "[CL] %U", tp_vft->format_connection, ss->connection_index, - ss->thread_index, verbose); - if (verbose == 1) - s = format (s, "%v", str); - if (verbose > 1) - s = format (s, "%U", format_stream_session_fifos, ss, verbose); - } else { clib_warning ("Session in state: %d!", ss->session_state); @@ -284,9 +275,9 @@ show_session_command_fn (vlib_main_t * vm, unformat_input_t * input, { if (once_per_pool && verbose == 1) { - str = - format (str, "%-50s%-15s%-10s%-10s%-10s", "Connection", - "State", "Rx-f", "Tx-f", "S-idx"); + str = format (str, "%-50s%-15s%-10s%-10s%-10s", + "Connection", "State", "Rx-f", "Tx-f", + "S-idx"); vlib_cli_output (vm, "%v", str); vec_reset_length (str); once_per_pool = 0; diff --git a/src/vnet/session/session_node.c b/src/vnet/session/session_node.c index cd52742bc67..dec6d13ca84 100644 --- a/src/vnet/session/session_node.c +++ b/src/vnet/session/session_node.c @@ -394,7 +394,6 @@ session_tx_fifo_dequeue_and_snd (vlib_main_t * vm, vlib_node_runtime_t * node, always_inline stream_session_t * session_event_get_session (session_fifo_event_t * e, u8 thread_index) { - ASSERT (e->fifo->master_thread_index == thread_index); return stream_session_get_if_valid (e->fifo->master_session_index, thread_index); } @@ -643,6 +642,8 @@ skip_dequeue: break; case FIFO_EVENT_BUILTIN_RX: s0 = session_event_get_session (e0, my_thread_index); + if (PREDICT_FALSE (!s0)) + continue; svm_fifo_unset_event (s0->server_rx_fifo); app = application_get (s0->app_index); app->cb_fns.builtin_server_rx_callback (s0); -- cgit 1.2.3-korg