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 */
/*
* 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 */
+ 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 */
+ u32 default_max_fifo_size; /**< default max fifo size */
+ u8 default_high_watermark; /**< default high watermark % */
+ u8 default_low_watermark; /**< default low watermark % */
} segment_manager_main_t;
static segment_manager_main_t sm_main;
#define segment_manager_foreach_segment_w_lock(VAR, SM, BODY) \
do { \
clib_rwlock_reader_lock (&(SM)->segments_rwlock); \
- pool_foreach((VAR), ((SM)->segments), (BODY)); \
+ pool_foreach((VAR), ((SM)->segments)) (BODY); \
clib_rwlock_reader_unlock (&(SM)->segments_rwlock); \
} while (0)
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;
+ props->max_fifo_size = sm_main.default_max_fifo_size;
+ props->high_watermark = sm_main.default_high_watermark;
+ props->low_watermark = sm_main.default_low_watermark;
+ props->n_slices = vlib_num_workers () + 1;
return props;
}
-static u8
+u8
segment_manager_app_detached (segment_manager_t * sm)
{
- return (sm->app_wrk_index == SEGMENT_MANAGER_INVALID_APP_INDEX);
+ return (sm->flags & SEG_MANAGER_F_DETACHED);
}
void
segment_manager_app_detach (segment_manager_t * sm)
{
- sm->app_wrk_index = SEGMENT_MANAGER_INVALID_APP_INDEX;
+ sm->flags |= SEG_MANAGER_F_DETACHED;
}
always_inline u32
* to avoid affecting any of the segments pool readers.
*/
int
-segment_manager_add_segment (segment_manager_t * sm, u32 segment_size)
+segment_manager_add_segment (segment_manager_t *sm, uword segment_size,
+ u8 notify_app)
{
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;
+ u32 fs_index = ~0;
u8 *seg_name;
int rv;
}
/*
- * Allocate fifo segment and lock if needed
+ * Allocate fifo segment and grab 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
+ * Allocate ssvm segment
*/
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);
+ segment_size = round_pow2 (segment_size, clib_mem_get_page_size ());
+
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);
+ {
+ app_worker_t *app_wrk = app_worker_get (sm->app_wrk_index);
+ application_t *app = application_get (app_wrk->app_index);
+ seg_name = format (0, "%v segment%c", app->name, 0);
+ }
fs->ssvm.ssvm_size = segment_size;
fs->ssvm.name = seg_name;
- fs->ssvm.requested_va = baseva;
+ fs->ssvm.requested_va = 0;
- if ((rv = ssvm_master_init (&fs->ssvm, props->segment_type)))
+ if ((rv = ssvm_server_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;
}
+ /*
+ * Initialize fifo segment
+ */
+ fs->n_slices = props->n_slices;
fifo_segment_init (fs);
/*
*/
fs_index = fs - sm->segments;
+ /*
+ * Set watermarks in segment
+ */
+ fs->h->high_watermark = sm->high_watermark;
+ fs->h->low_watermark = sm->low_watermark;
+ fs->h->pct_first_alloc = props->pct_first_alloc;
+ fs->h->flags &= ~FIFO_SEGMENT_F_MEM_LIMIT;
+
+ if (notify_app)
+ {
+ app_worker_t *app_wrk;
+ u64 fs_handle;
+ 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, fs_handle);
+ if (rv)
+ return rv;
+ }
done:
if (vlib_num_workers ())
void
segment_manager_del_segment (segment_manager_t * sm, fifo_segment_t * fs)
{
- segment_manager_main_t *smm = &sm_main;
-
if (ssvm_type (&fs->ssvm) != SSVM_SEGMENT_PRIVATE)
{
- clib_valloc_free (&smm->va_allocator, fs->ssvm.requested_va);
-
- if (sm->app_wrk_index != SEGMENT_MANAGER_INVALID_APP_INDEX)
+ if (!segment_manager_app_detached (sm))
{
app_worker_t *app_wrk;
u64 segment_handle;
}
}
+ fifo_segment_cleanup (fs);
ssvm_delete (&fs->ssvm);
if (CLIB_DEBUG)
pool_put (sm->segments, fs);
}
+static fifo_segment_t *
+segment_manager_get_segment_if_valid (segment_manager_t * sm,
+ u32 segment_index)
+{
+ if (pool_is_free_index (sm->segments, segment_index))
+ return 0;
+ return pool_elt_at_index (sm->segments, segment_index);
+}
+
/**
* Removes segment after acquiring writer lock
*/
static inline void
-segment_manager_lock_and_del_segment (segment_manager_t * sm, u32 fs_index)
+sm_lock_and_del_segment_inline (segment_manager_t * sm, u32 fs_index)
{
fifo_segment_t *fs;
u8 is_prealloc;
clib_rwlock_writer_lock (&sm->segments_rwlock);
- fs = segment_manager_get_segment (sm, fs_index);
+
+ fs = segment_manager_get_segment_if_valid (sm, fs_index);
+ if (!fs)
+ goto done;
+
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);
- return;
- }
+ goto done;
segment_manager_del_segment (sm, fs);
+
+done:
clib_rwlock_writer_unlock (&sm->segments_rwlock);
}
+void
+segment_manager_lock_and_del_segment (segment_manager_t * sm, u32 fs_index)
+{
+ sm_lock_and_del_segment_inline (sm, fs_index);
+}
+
/**
* Reads a segment from the segment manager's pool without lock
*/
return (((u64) segment_manager_index (sm) << 32) | segment_index);
}
-static void
-segment_manager_parse_segment_handle (u64 segment_handle, u32 * sm_index,
- u32 * segment_index)
-{
- *sm_index = segment_handle >> 32;
- *segment_index = segment_handle & 0xFFFFFFFF;
-}
-
u64
segment_manager_make_segment_handle (u32 segment_manager_index,
u32 segment_index)
return pool_elt_at_index (sm->segments, segment_index);
}
+void
+segment_manager_segment_reader_lock (segment_manager_t * sm)
+{
+ clib_rwlock_reader_lock (&sm->segments_rwlock);
+}
+
void
segment_manager_segment_reader_unlock (segment_manager_t * sm)
{
- ASSERT (sm->segments_rwlock->n_readers > 0);
clib_rwlock_reader_unlock (&sm->segments_rwlock);
}
return sm;
}
+int
+segment_manager_init (segment_manager_t * sm)
+{
+ segment_manager_props_t *props;
+
+ props = segment_manager_properties_get (sm);
+
+ sm->max_fifo_size = props->max_fifo_size ?
+ props->max_fifo_size : sm_main.default_max_fifo_size;
+ sm->max_fifo_size = clib_max (sm->max_fifo_size, 4096);
+
+ segment_manager_set_watermarks (sm,
+ props->high_watermark,
+ props->low_watermark);
+ return 0;
+}
+
/**
* Initializes segment manager based on options provided.
* Returns error if ssvm segment(s) allocation fails.
*/
int
-segment_manager_init (segment_manager_t * sm, u32 first_seg_size,
- u32 prealloc_fifo_pairs)
+segment_manager_init_first (segment_manager_t * sm)
{
- 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_props_t *props;
- fifo_segment_t *segment;
- u32 approx_segment_count;
- int seg_index, i;
+ uword first_seg_size;
+ fifo_segment_t *fs;
+ int fs_index, i;
+ segment_manager_init (sm);
props = segment_manager_properties_get (sm);
- first_seg_size = clib_max (first_seg_size, sm_main.default_segment_size);
+ first_seg_size = clib_max (props->segment_size,
+ sm_main.default_segment_size);
- if (prealloc_fifo_pairs)
+ if (props->prealloc_fifos)
{
+ u64 approx_total_size, max_seg_size = ((u64) 1 << 32) - (128 << 10);
+ u32 rx_rounded_data_size, tx_rounded_data_size;
+ u32 prealloc_fifo_pairs = props->prealloc_fifos;
+ u32 rx_fifo_size, tx_fifo_size, pair_size;
+ u32 approx_segment_count;
+
/* Figure out how many segments should be preallocated */
rx_rounded_data_size = (1 << (max_log2 (props->rx_fifo_size)));
tx_rounded_data_size = (1 << (max_log2 (props->tx_fifo_size)));
/* Allocate the segments */
for (i = 0; i < approx_segment_count + 1; i++)
{
- seg_index = segment_manager_add_segment (sm, max_seg_size);
- if (seg_index < 0)
+ fs_index = segment_manager_add_segment (sm, max_seg_size, 0);
+ if (fs_index < 0)
{
clib_warning ("Failed to preallocate segment %d", i);
- return seg_index;
+ return fs_index;
}
- segment = segment_manager_get_segment (sm, seg_index);
+ fs = segment_manager_get_segment (sm, fs_index);
if (i == 0)
- sm->event_queue = segment_manager_alloc_queue (segment, props);
+ sm->event_queue = segment_manager_alloc_queue (fs, props);
- fifo_segment_preallocate_fifo_pairs (segment,
+ fifo_segment_preallocate_fifo_pairs (fs,
props->rx_fifo_size,
props->tx_fifo_size,
&prealloc_fifo_pairs);
- fifo_segment_flags (segment) = FIFO_SEGMENT_F_IS_PREALLOCATED;
+ fifo_segment_flags (fs) = FIFO_SEGMENT_F_IS_PREALLOCATED;
if (prealloc_fifo_pairs == 0)
break;
}
+ return 0;
}
- else
+
+ fs_index = segment_manager_add_segment (sm, first_seg_size, 0);
+ if (fs_index < 0)
{
- seg_index = segment_manager_add_segment (sm, first_seg_size);
- if (seg_index < 0)
+ clib_warning ("Failed to allocate segment");
+ return fs_index;
+ }
+
+ fs = segment_manager_get_segment (sm, fs_index);
+ sm->event_queue = segment_manager_alloc_queue (fs, props);
+
+ if (props->prealloc_fifo_hdrs)
+ {
+ u32 hdrs_per_slice;
+
+ /* Do not preallocate on slice associated to main thread */
+ i = (vlib_num_workers ()? 1 : 0);
+ hdrs_per_slice = props->prealloc_fifo_hdrs / (fs->n_slices - i);
+
+ for (; i < fs->n_slices; i++)
{
- clib_warning ("Failed to allocate segment");
- return seg_index;
+ if (fifo_segment_prealloc_fifo_hdrs (fs, i, hdrs_per_slice))
+ return VNET_API_ERROR_SVM_SEGMENT_CREATE_FAIL;
}
- segment = segment_manager_get_segment (sm, seg_index);
- sm->event_queue = segment_manager_alloc_queue (segment, props);
}
return 0;
}
+void
+segment_manager_cleanup_detached_listener (segment_manager_t * sm)
+{
+ app_worker_t *app_wrk;
+
+ app_wrk = app_worker_get_if_valid (sm->app_wrk_index);
+ if (!app_wrk)
+ return;
+
+ app_worker_del_detached_sm (app_wrk, segment_manager_index (sm));
+}
+
/**
* Cleanup segment manager.
*/
segment_manager_main_t *smm = &sm_main;
fifo_segment_t *fifo_segment;
- ASSERT (!segment_manager_has_fifos (sm)
+ ASSERT (vlib_get_thread_index () == 0
+ && !segment_manager_has_fifos (sm)
&& segment_manager_app_detached (sm));
+ if (sm->flags & SEG_MANAGER_F_DETACHED_LISTENER)
+ segment_manager_cleanup_detached_listener (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
clib_rwlock_writer_lock (&sm->segments_rwlock);
/* *INDENT-OFF* */
- pool_foreach (fifo_segment, sm->segments, ({
+ pool_foreach (fifo_segment, sm->segments) {
segment_manager_del_segment (sm, fifo_segment);
- }));
+ }
/* *INDENT-ON* */
+ pool_free (sm->segments);
clib_rwlock_writer_unlock (&sm->segments_rwlock);
clib_rwlock_free (&sm->segments_rwlock);
pool_put (smm->segment_managers, sm);
}
+static void
+sm_free_w_index_helper (void *arg)
+{
+ u32 sm_index = *(u32 *) arg;
+ segment_manager_t *sm;
+
+ ASSERT (vlib_get_thread_index () == 0);
+
+ if ((sm = segment_manager_get_if_valid (sm_index)))
+ segment_manager_free (sm);
+}
+
+void
+segment_manager_free_safe (segment_manager_t *sm)
+{
+ if (!vlib_thread_is_main_w_barrier ())
+ {
+ u32 sm_index = segment_manager_index (sm);
+ vlib_rpc_call_main_thread (sm_free_w_index_helper, (u8 *) & sm_index,
+ sizeof (sm_index));
+ }
+ else
+ {
+ segment_manager_free (sm);
+ }
+}
+
void
segment_manager_init_free (segment_manager_t * sm)
{
+ ASSERT (vlib_get_thread_index () == 0);
+
segment_manager_app_detach (sm);
if (segment_manager_has_fifos (sm))
segment_manager_del_sessions (sm);
void
segment_manager_del_sessions (segment_manager_t * sm)
{
- fifo_segment_t *fifo_segment;
session_handle_t *handles = 0, *handle;
+ fifo_segment_t *fs;
session_t *session;
- svm_fifo_t *fifo;
+ int slice_index;
+ svm_fifo_t *f;
ASSERT (pool_elts (sm->segments) != 0);
/* Across all fifo segments used by the server */
/* *INDENT-OFF* */
- segment_manager_foreach_segment_w_lock (fifo_segment, sm, ({
- fifo = fifo_segment_get_fifo_list (fifo_segment);
-
- /*
- * Remove any residual sessions from the session lookup table
- * Don't bother deleting the individual fifos, we're going to
- * throw away the fifo segment in a minute.
- */
- while (fifo)
+ segment_manager_foreach_segment_w_lock (fs, sm, ({
+ for (slice_index = 0; slice_index < fs->n_slices; slice_index++)
{
- session = session_get_if_valid (fifo->master_session_index,
- fifo->master_thread_index);
- if (session)
- vec_add1 (handles, session_handle (session));
- fifo = fifo->next;
+ f = fifo_segment_get_slice_fifo_list (fs, slice_index);
+
+ /*
+ * Remove any residual sessions from the session lookup table
+ * Don't bother deleting the individual fifos, we're going to
+ * throw away the fifo segment in a minute.
+ */
+ while (f)
+ {
+ session = session_get_if_valid (f->shr->master_session_index,
+ f->master_thread_index);
+ if (session)
+ vec_add1 (handles, session_handle (session));
+ f = f->next;
+ }
}
/* Instead of removing the segment, test when cleaning up disconnected
/* *INDENT-ON* */
vec_foreach (handle, handles)
- session_close (session_get_from_handle (*handle));
+ {
+ session = session_get_from_handle (*handle);
+ session_close (session);
+ /* Avoid propagating notifications back to the app */
+ session->app_wrk_index = APP_INVALID_INDEX;
+ }
+ vec_free (handles);
+}
+
+/**
+ * Initiate disconnects for sessions in specified state 'owned' by a segment
+ * manager
+ */
+void
+segment_manager_del_sessions_filter (segment_manager_t *sm,
+ session_state_t *states)
+{
+ session_handle_t *handles = 0, *handle;
+ fifo_segment_t *fs;
+ session_t *session;
+ int slice_index;
+ svm_fifo_t *f;
+
+ ASSERT (pool_elts (sm->segments) != 0);
+
+ /* Across all fifo segments used by the server */
+ segment_manager_foreach_segment_w_lock (
+ fs, sm, ({
+ for (slice_index = 0; slice_index < fs->n_slices; slice_index++)
+ {
+ f = fifo_segment_get_slice_fifo_list (fs, slice_index);
+ while (f)
+ {
+ session = session_get_if_valid (f->shr->master_session_index,
+ f->master_thread_index);
+ if (session)
+ {
+ session_state_t *state;
+ vec_foreach (state, states)
+ {
+ if (session->session_state == *state)
+ {
+ vec_add1 (handles, session_handle (session));
+ break;
+ }
+ }
+ }
+ f = f->next;
+ }
+ }
+ }));
+
+ vec_foreach (handle, handles)
+ {
+ session = session_get_from_handle (*handle);
+ session_close (session);
+ /* Avoid propagating notifications back to the app */
+ session->app_wrk_index = APP_INVALID_INDEX;
+ }
+ vec_free (handles);
}
int
segment_manager_try_alloc_fifos (fifo_segment_t * fifo_segment,
+ u32 thread_index,
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, sm_main.default_fifo_size);
- *rx_fifo = fifo_segment_alloc_fifo (fifo_segment, rx_fifo_size,
- FIFO_SEGMENT_RX_FIFO);
+ *rx_fifo = fifo_segment_alloc_fifo_w_slice (fifo_segment, thread_index,
+ rx_fifo_size,
+ FIFO_SEGMENT_RX_FIFO);
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);
+ *tx_fifo = fifo_segment_alloc_fifo_w_slice (fifo_segment, thread_index,
+ tx_fifo_size,
+ FIFO_SEGMENT_TX_FIFO);
if (*rx_fifo == 0)
{
int
segment_manager_alloc_session_fifos (segment_manager_t * sm,
+ u32 thread_index,
svm_fifo_t ** rx_fifo,
svm_fifo_t ** tx_fifo)
{
int alloc_fail = 1, rv = 0, new_fs_index;
+ uword free_bytes, max_free_bytes = 0;
segment_manager_props_t *props;
- fifo_segment_t *fs = 0;
+ fifo_segment_t *fs = 0, *cur;
u32 sm_index, fs_index;
- u8 added_a_segment = 0;
- u64 fs_handle;
props = segment_manager_properties_get (sm);
* Find the first free segment to allocate the fifos in
*/
- /* *INDENT-OFF* */
- 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);
- /* Exit with lock held, drop it after notifying app */
- if (!alloc_fail)
- goto alloc_success;
- }));
- /* *INDENT-ON* */
-
-alloc_check:
-
- if (!alloc_fail)
- {
+ segment_manager_segment_reader_lock (sm);
- alloc_success:
-
- ASSERT (rx_fifo && tx_fifo);
- sm_index = segment_manager_index (sm);
- fs_index = segment_manager_segment_index (sm, fs);
- (*tx_fifo)->segment_manager = sm_index;
- (*rx_fifo)->segment_manager = sm_index;
- (*tx_fifo)->segment_index = fs_index;
- (*rx_fifo)->segment_index = fs_index;
-
- if (added_a_segment)
+ pool_foreach (cur, sm->segments) {
+ if (fifo_segment_flags (cur) & FIFO_SEGMENT_F_CUSTOM_USE)
+ continue;
+ free_bytes = fifo_segment_available_bytes (cur);
+ if (free_bytes > max_free_bytes)
{
- app_worker_t *app_wrk;
- 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, fs_handle);
+ max_free_bytes = free_bytes;
+ fs = cur;
}
- /* Drop the lock after app is notified */
- segment_manager_segment_reader_unlock (sm);
- return rv;
+ }
+
+ if (fs)
+ {
+ alloc_fail = segment_manager_try_alloc_fifos (fs, thread_index,
+ props->rx_fifo_size,
+ props->tx_fifo_size,
+ rx_fifo, tx_fifo);
+ /* On success, keep lock until fifos are initialized */
+ if (!alloc_fail)
+ goto alloc_success;
}
+ segment_manager_segment_reader_unlock (sm);
+
/*
* Allocation failed, see if we can add a new segment
*/
if (props->add_segment)
{
- if (added_a_segment)
- {
- clib_warning ("Added a segment, still can't allocate a fifo");
- segment_manager_segment_reader_unlock (sm);
- return SESSION_ERROR_NEW_SEG_NO_SPACE;
- }
- if ((new_fs_index = segment_manager_add_segment (sm, 0)) < 0)
+ if ((new_fs_index = segment_manager_add_segment (sm, 0, 1)) < 0)
{
clib_warning ("Failed to add new segment");
- return SESSION_ERROR_SEG_CREATE;
+ return SESSION_E_SEG_CREATE;
}
fs = segment_manager_get_segment_w_lock (sm, new_fs_index);
- alloc_fail = segment_manager_try_alloc_fifos (fs, props->rx_fifo_size,
+ alloc_fail = segment_manager_try_alloc_fifos (fs, thread_index,
+ props->rx_fifo_size,
props->tx_fifo_size,
rx_fifo, tx_fifo);
- added_a_segment = 1;
- goto alloc_check;
+ if (alloc_fail)
+ {
+ clib_warning ("Added a segment, still can't allocate a fifo");
+ segment_manager_segment_reader_unlock (sm);
+ return SESSION_E_SEG_NO_SPACE2;
+ }
}
else
{
- clib_warning ("Can't add new seg and no space to allocate fifos!");
- return SESSION_ERROR_NO_SPACE;
+ SESSION_DBG ("Can't add new seg and no space to allocate fifos!");
+ return SESSION_E_SEG_NO_SPACE;
}
+
+alloc_success:
+ ASSERT (rx_fifo && tx_fifo);
+
+ sm_index = segment_manager_index (sm);
+ fs_index = segment_manager_segment_index (sm, fs);
+ (*tx_fifo)->segment_manager = sm_index;
+ (*rx_fifo)->segment_manager = sm_index;
+ (*tx_fifo)->segment_index = fs_index;
+ (*rx_fifo)->segment_index = fs_index;
+
+ /* Drop the lock after app is notified */
+ segment_manager_segment_reader_unlock (sm);
+
+ return rv;
}
void
/* Remove segment if it holds no fifos or first but not protected */
if (segment_index != 0 || !sm->first_is_protected)
- segment_manager_lock_and_del_segment (sm, segment_index);
+ sm_lock_and_del_segment_inline (sm, segment_index);
/* Remove segment manager if no sessions and detached from app */
if (segment_manager_app_detached (sm)
&& !segment_manager_has_fifos (sm))
- {
- segment_manager_free (sm);
- }
+ segment_manager_free_safe (sm);
}
else
segment_manager_segment_reader_unlock (sm);
}
-int
-segment_manager_grow_fifo (segment_manager_t * sm, svm_fifo_t * f, u32 size)
+void
+segment_manager_detach_fifo (segment_manager_t *sm, svm_fifo_t **f)
{
fifo_segment_t *fs;
- int rv;
- fs = segment_manager_get_segment_w_lock (sm, f->segment_index);
- rv = fifo_segment_grow_fifo (fs, f, size);
+ fs = segment_manager_get_segment_w_lock (sm, (*f)->segment_index);
+ fifo_segment_detach_fifo (fs, f);
segment_manager_segment_reader_unlock (sm);
-
- return rv;
}
-int
-segment_manager_collect_fifo_chunks (segment_manager_t * sm, svm_fifo_t * f)
+void
+segment_manager_attach_fifo (segment_manager_t *sm, svm_fifo_t **f,
+ session_t *s)
{
fifo_segment_t *fs;
- int rv;
- fs = segment_manager_get_segment_w_lock (sm, f->segment_index);
- rv = fifo_segment_collect_fifo_chunks (fs, f);
+ fs = segment_manager_get_segment_w_lock (sm, (*f)->segment_index);
+ fifo_segment_attach_fifo (fs, f, s->thread_index);
segment_manager_segment_reader_unlock (sm);
- return rv;
-}
-
-int
-segment_manager_shrink_fifo (segment_manager_t * sm, svm_fifo_t * f, u32 size,
- u8 is_producer)
-{
- int rv;
-
- rv = svm_fifo_reduce_size (f, size, is_producer);
-
- /* Nothing to collect at this point */
- if (!is_producer)
- return rv;
-
- if (f->flags & SVM_FIFO_F_COLLECT_CHUNKS)
- segment_manager_collect_fifo_chunks (sm, f);
-
- return rv;
+ (*f)->shr->master_session_index = s->session_index;
+ (*f)->master_thread_index = s->thread_index;
}
u32
u32 fifo_evt_size, session_evt_size = 256, notif_q_size;
svm_msg_q_cfg_t _cfg, *cfg = &_cfg;
svm_msg_q_t *q;
- void *oldheap;
fifo_evt_size = sizeof (session_event_t);
notif_q_size = clib_max (16, props->evt_q_size >> 4);
cfg->q_nitems = props->evt_q_size;
cfg->ring_cfgs = rc;
- oldheap = ssvm_push_heap (segment->ssvm.sh);
- q = svm_msg_q_alloc (cfg);
- ssvm_pop_heap (oldheap);
+ q = fifo_segment_msg_q_alloc (segment, 0, cfg);
if (props->use_mq_eventfd)
{
- if (svm_msg_q_alloc_producer_eventfd (q))
+ if (svm_msg_q_alloc_eventfd (q))
clib_warning ("failed to alloc eventfd");
}
return q;
* Init segment vm address allocator
*/
void
-segment_manager_main_init (segment_manager_main_init_args_t * a)
+segment_manager_main_init (void)
{
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;
+ sm->default_max_fifo_size = 4 << 20;
+ sm->default_high_watermark = 80;
+ sm->default_low_watermark = 50;
}
static clib_error_t *
vlib_cli_command_t * cmd)
{
segment_manager_main_t *smm = &sm_main;
- fifo_segment_t *seg;
- segment_manager_t *sm;
u8 show_segments = 0, verbose = 0;
- char *address;
- size_t size;
- u32 active_fifos;
- u32 free_fifos;
+ uword max_fifo_size;
+ segment_manager_t *sm;
+ fifo_segment_t *seg;
+ app_worker_t *app_wrk;
+ application_t *app;
+ u8 custom_logic;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
pool_elts (smm->segment_managers));
if (verbose && pool_elts (smm->segment_managers))
{
- vlib_cli_output (vm, "%-10s%=15s%=12s", "Index", "App Index",
- "Segments");
+ vlib_cli_output (vm, "%-6s%=10s%=10s%=13s%=11s%=11s%=12s",
+ "Index", "AppIndex", "Segments", "MaxFifoSize",
+ "HighWater", "LowWater", "FifoTuning");
/* *INDENT-OFF* */
- pool_foreach (sm, smm->segment_managers, ({
- vlib_cli_output (vm, "%-10d%=15d%=12d", segment_manager_index (sm),
- sm->app_wrk_index, pool_elts (sm->segments));
- }));
+ pool_foreach (sm, smm->segment_managers) {
+ app_wrk = app_worker_get_if_valid (sm->app_wrk_index);
+ app = app_wrk ? application_get (app_wrk->app_index) : 0;
+ custom_logic = (app && (app->cb_fns.fifo_tuning_callback)) ? 1 : 0;
+ max_fifo_size = sm->max_fifo_size;
+
+ vlib_cli_output (vm, "%-6d%=10d%=10d%=13U%=11d%=11d%=12s",
+ segment_manager_index (sm),
+ sm->app_wrk_index, pool_elts (sm->segments),
+ format_memory_size, max_fifo_size,
+ sm->high_watermark, sm->low_watermark,
+ custom_logic ? "custom" : "none");
+ }
/* *INDENT-ON* */
+ vlib_cli_output (vm, "\n");
}
if (show_segments)
{
- vlib_cli_output (vm, "%-15s%15s%15s%15s%15s%15s", "Name", "Type",
- "HeapSize (M)", "ActiveFifos", "FreeFifos", "Address");
+ vlib_cli_output (vm, "%U", format_fifo_segment, 0, verbose);
/* *INDENT-OFF* */
- pool_foreach (sm, smm->segment_managers, ({
+ pool_foreach (sm, smm->segment_managers) {
segment_manager_foreach_segment_w_lock (seg, sm, ({
- 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_fifo_segment_type,
- seg, size >> 20ULL, active_fifos, free_fifos,
- address);
- if (verbose)
- vlib_cli_output (vm, "%U", format_fifo_segment, seg, verbose);
+ vlib_cli_output (vm, "%U", format_fifo_segment, seg, verbose);
}));
- }));
+ }
/* *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;
+ fifo_segment_t *fs;
const u8 *app_name;
- u8 *s = 0;
+ int slice_index;
+ u8 *s = 0, *str;
+ svm_fifo_t *f;
if (!sm)
{
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)
+ pool_foreach (fs, sm->segments) {
+ for (slice_index = 0; slice_index < fs->n_slices; slice_index++)
{
- u32 session_index, thread_index;
- session_t *session;
+ f = fifo_segment_get_slice_fifo_list (fs, slice_index);
+ while (f)
+ {
+ u32 session_index, thread_index;
+ session_t *session;
- session_index = fifo->master_session_index;
- thread_index = fifo->master_thread_index;
+ session_index = f->shr->master_session_index;
+ thread_index = f->master_thread_index;
- session = session_get (session_index, thread_index);
- str = format (0, "%U", format_session, session, verbose);
+ 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;
+ if (verbose)
+ s = format (s, "%-40v%-20v%-15u%-10u", str, app_name,
+ app_wrk->api_client_index,
+ app_wrk->connects_seg_manager);
+ else
+ s = format (s, "%-40v%-20v", str, app_name);
+
+ vlib_cli_output (vm, "%v", s);
+ vec_reset_length (s);
+ vec_free (str);
+
+ f = f->next;
+ }
+ vec_free (s);
}
- vec_free (s);
- }));
+ }
/* *INDENT-ON* */
clib_rwlock_reader_unlock (&sm->segments_rwlock);
}
+void
+segment_manager_set_watermarks (segment_manager_t * sm,
+ u8 high_watermark, u8 low_watermark)
+{
+ ASSERT (high_watermark <= 100 && low_watermark <= 100 &&
+ low_watermark <= high_watermark);
+
+ sm->high_watermark = high_watermark;
+ sm->low_watermark = low_watermark;
+}
+
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / blobdiff