#include <signal.h>
#include <math.h>
#include <vppinfra/format.h>
+#include <vppinfra/time_range.h>
+#include <vppinfra/interrupt.h>
#include <vppinfra/linux/sysfs.h>
#include <vlib/vlib.h>
#include <vlib/threads.h>
-#include <vlib/unix/cj.h>
#include <vlib/stat_weak_inlines.h>
-DECLARE_CJ_GLOBAL_LOG;
-
-
u32
vl (void *p)
{
if (!vlib_worker_threads->barrier_elog_enabled)
return;
- /* *INDENT-OFF* */
- ELOG_TYPE_DECLARE (e) =
- {
- .format = "bar-trace-%s-#%d",
- .format_args = "T4i4",
- };
- /* *INDENT-ON* */
+ ELOG_TYPE_DECLARE (e) = {
+ .format = "bar-trace-%s-#%d",
+ .format_args = "T4i4",
+ };
+
struct
{
u32 caller, count, t_entry, t_open, t_closed;
if (!vlib_worker_threads->barrier_elog_enabled)
return;
- /* *INDENT-OFF* */
- ELOG_TYPE_DECLARE (e) =
- {
- .format = "bar-syncrec-%s-#%d",
- .format_args = "T4i4",
- };
- /* *INDENT-ON* */
+ ELOG_TYPE_DECLARE (e) = {
+ .format = "bar-syncrec-%s-#%d",
+ .format_args = "T4i4",
+ };
+
struct
{
u32 caller, depth;
if (!vlib_worker_threads->barrier_elog_enabled)
return;
- /* *INDENT-OFF* */
- ELOG_TYPE_DECLARE (e) =
- {
- .format = "bar-relrrec-#%d",
- .format_args = "i4",
- };
- /* *INDENT-ON* */
+ ELOG_TYPE_DECLARE (e) = {
+ .format = "bar-relrrec-#%d",
+ .format_args = "i4",
+ };
+
struct
{
u32 depth;
if (!vlib_worker_threads->barrier_elog_enabled)
return;
- /* *INDENT-OFF* */
- ELOG_TYPE_DECLARE (e) =
- {
- .format = "bar-rel-#%d-e%d-u%d-t%d",
- .format_args = "i4i4i4i4",
- };
- /* *INDENT-ON* */
+ ELOG_TYPE_DECLARE (e) = {
+ .format = "bar-rel-#%d-e%d-u%d-t%d",
+ .format_args = "i4i4i4i4",
+ };
+
struct
{
u32 count, t_entry, t_update_main, t_closed_total;
- ((i32) ((*tr1)->no_data_structure_clone)));
}
-static uword *
-clib_sysfs_list_to_bitmap (char *filename)
-{
- FILE *fp;
- uword *r = 0;
-
- fp = fopen (filename, "r");
-
- if (fp != NULL)
- {
- u8 *buffer = 0;
- vec_validate (buffer, 256 - 1);
- if (fgets ((char *) buffer, 256, fp))
- {
- unformat_input_t in;
- unformat_init_string (&in, (char *) buffer,
- strlen ((char *) buffer));
- if (unformat (&in, "%U", unformat_bitmap_list, &r) != 1)
- clib_warning ("unformat_bitmap_list failed");
- unformat_free (&in);
- }
- vec_free (buffer);
- fclose (fp);
- }
- return r;
-}
-
/* Called early in the init sequence */
}
avail_cpu = clib_bitmap_set (avail_cpu, tm->main_lcore, 0);
- /*
- * Determine if the number of workers is greater than 0.
- * If so, mark CPU 0 unavailable so workers will be numbered after main.
- */
- u32 n_workers = 0;
- uword *p = hash_get_mem (tm->thread_registrations_by_name, "workers");
- if (p != 0)
- {
- vlib_thread_registration_t *tr = (vlib_thread_registration_t *) p[0];
- int worker_thread_count = tr->count;
- n_workers = worker_thread_count;
- }
- if (tm->skip_cores == 0 && n_workers)
- avail_cpu = clib_bitmap_set (avail_cpu, 0, 0);
-
/* assume that there is socket 0 only if there is no data from sysfs */
if (!tm->cpu_socket_bitmap)
tm->cpu_socket_bitmap = clib_bitmap_set (0, 0, 1);
{
uword c;
/* *INDENT-OFF* */
- clib_bitmap_foreach (c, tr->coremask, ({
+ clib_bitmap_foreach (c, tr->coremask) {
if (clib_bitmap_get(avail_cpu, c) == 0)
return clib_error_return (0, "cpu %u is not available to be used"
" for the '%s' thread",c, tr->name);
avail_cpu = clib_bitmap_set(avail_cpu, c, 0);
- }));
+ }
/* *INDENT-ON* */
}
else
{
for (j = 0; j < tr->count; j++)
{
+ /* Do not use CPU 0 by default - leave it to the host and IRQs */
+ uword avail_c0 = clib_bitmap_get (avail_cpu, 0);
+ avail_cpu = clib_bitmap_set (avail_cpu, 0, 0);
+
uword c = clib_bitmap_first_set (avail_cpu);
+ /* Use CPU 0 as a last resort */
+ if (c == ~0 && avail_c0)
+ {
+ c = 0;
+ avail_c0 = 0;
+ }
+
if (c == ~0)
return clib_error_return (0,
"no available cpus to be used for"
" the '%s' thread", tr->name);
+ avail_cpu = clib_bitmap_set (avail_cpu, 0, avail_c0);
avail_cpu = clib_bitmap_set (avail_cpu, c, 0);
tr->coremask = clib_bitmap_set (tr->coremask, c, 1);
}
__os_thread_index = w - vlib_worker_threads;
+ vlib_process_start_switch_stack (vlib_get_main_by_index (__os_thread_index),
+ 0);
rv = (void *) clib_calljmp
((uword (*)(uword)) w->thread_function,
(uword) arg, w->thread_stack + VLIB_THREAD_STACK_SIZE);
/* *INDENT-OFF* */
clib_sysfs_read ("/sys/devices/system/node/online", "%U",
unformat_bitmap_list, &nbmp);
- clib_bitmap_foreach (node, nbmp, ({
+ clib_bitmap_foreach (node, nbmp) {
p = format (p, "%s%u/cpulist%c", sys_node_path, node, 0);
clib_sysfs_read ((char *) p, "%U", unformat_bitmap_list, &cbmp);
if (clib_bitmap_get (cbmp, cpu_id))
numa_id = node;
vec_reset_length (cbmp);
vec_reset_length (p);
- }));
+ }
/* *INDENT-ON* */
vec_free (nbmp);
vec_free (cbmp);
static clib_error_t *
vlib_launch_thread_int (void *fp, vlib_worker_thread_t * w, unsigned cpu_id)
{
+ clib_mem_main_t *mm = &clib_mem_main;
vlib_thread_main_t *tm = &vlib_thread_main;
void *(*fp_arg) (void *) = fp;
void *numa_heap;
vlib_get_thread_core_numa (w, cpu_id);
/* Set up NUMA-bound heap if indicated */
- if (clib_per_numa_mheaps[w->numa_id] == 0)
+ if (mm->per_numa_mheaps[w->numa_id] == 0)
{
/* If the user requested a NUMA heap, create it... */
if (tm->numa_heap_size)
{
- numa_heap = clib_mem_init_thread_safe_numa
- (0 /* DIY */ , tm->numa_heap_size, w->numa_id);
- clib_per_numa_mheaps[w->numa_id] = numa_heap;
+ clib_mem_set_numa_affinity (w->numa_id, 1 /* force */ );
+ numa_heap = clib_mem_create_heap (0 /* DIY */ , tm->numa_heap_size,
+ 1 /* is_locked */ ,
+ "numa %u heap", w->numa_id);
+ clib_mem_set_default_numa_affinity ();
+ mm->per_numa_mheaps[w->numa_id] = numa_heap;
}
else
{
/* Or, use the main heap */
- clib_per_numa_mheaps[w->numa_id] = w->thread_mheap;
+ mm->per_numa_mheaps[w->numa_id] = w->thread_mheap;
}
}
static clib_error_t *
start_workers (vlib_main_t * vm)
{
+ vlib_global_main_t *vgm = vlib_get_global_main ();
int i, j;
vlib_worker_thread_t *w;
vlib_main_t *vm_clone;
vlib_node_runtime_t *rt;
u32 n_vlib_mains = tm->n_vlib_mains;
u32 worker_thread_index;
- u8 *main_heap = clib_mem_get_per_cpu_heap ();
+ clib_mem_heap_t *main_heap = clib_mem_get_per_cpu_heap ();
+ vlib_stats_register_mem_heap (main_heap);
vec_reset_length (vlib_worker_threads);
/* Set up the main thread */
vec_add2_aligned (vlib_worker_threads, w, 1, CLIB_CACHE_LINE_BYTES);
w->elog_track.name = "main thread";
- elog_track_register (&vm->elog_main, &w->elog_track);
+ elog_track_register (vlib_get_elog_main (), &w->elog_track);
if (vec_len (tm->thread_prefix))
{
vlib_set_thread_name ((char *) w->name);
}
- vm->elog_main.lock =
+ vgm->elog_main.lock =
clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES, CLIB_CACHE_LINE_BYTES);
- vm->elog_main.lock[0] = 0;
+ vgm->elog_main.lock[0] = 0;
- if (n_vlib_mains > 1)
- {
- /* Replace hand-crafted length-1 vector with a real vector */
- vlib_mains = 0;
+ clib_callback_data_init (&vm->vlib_node_runtime_perf_callbacks,
+ &vm->worker_thread_main_loop_callback_lock);
- vec_validate_aligned (vlib_mains, tm->n_vlib_mains - 1,
- CLIB_CACHE_LINE_BYTES);
- _vec_len (vlib_mains) = 0;
- vec_add1_aligned (vlib_mains, vm, CLIB_CACHE_LINE_BYTES);
+ vec_validate_aligned (vgm->vlib_mains, n_vlib_mains - 1,
+ CLIB_CACHE_LINE_BYTES);
+ _vec_len (vgm->vlib_mains) = 0;
+ vec_add1_aligned (vgm->vlib_mains, vm, CLIB_CACHE_LINE_BYTES);
+ if (n_vlib_mains > 1)
+ {
vlib_worker_threads->wait_at_barrier =
clib_mem_alloc_aligned (sizeof (u32), CLIB_CACHE_LINE_BYTES);
vlib_worker_threads->workers_at_barrier =
/* Without update or refork */
*vlib_worker_threads->node_reforks_required = 0;
- vm->need_vlib_worker_thread_node_runtime_update = 0;
+ vgm->need_vlib_worker_thread_node_runtime_update = 0;
/* init timing */
vm->barrier_epoch = 0;
vm->barrier_no_close_before = 0;
worker_thread_index = 1;
+ clib_spinlock_init (&vm->worker_thread_main_loop_callback_lock);
for (i = 0; i < vec_len (tm->registrations); i++)
{
vec_add2 (vlib_worker_threads, w, 1);
/* Currently unused, may not really work */
if (tr->mheap_size)
- w->thread_mheap = create_mspace (tr->mheap_size,
- 0 /* unlocked */ );
+ w->thread_mheap = clib_mem_create_heap (0, tr->mheap_size,
+ /* unlocked */ 0,
+ "%s%d heap",
+ tr->name, k);
else
w->thread_mheap = main_heap;
w->elog_track.name =
(char *) format (0, "%s %d", tr->name, k + 1);
vec_add1 (w->elog_track.name, 0);
- elog_track_register (&vm->elog_main, &w->elog_track);
+ elog_track_register (vlib_get_elog_main (), &w->elog_track);
if (tr->no_data_structure_clone)
continue;
vm_clone = clib_mem_alloc_aligned (sizeof (*vm_clone),
CLIB_CACHE_LINE_BYTES);
- clib_memcpy (vm_clone, vlib_mains[0], sizeof (*vm_clone));
+ clib_memcpy (vm_clone, vlib_get_first_main (),
+ sizeof (*vm_clone));
vm_clone->thread_index = worker_thread_index;
vm_clone->heap_base = w->thread_mheap;
vm_clone->heap_aligned_base = (void *)
(((uword) w->thread_mheap) & ~(VLIB_FRAME_ALIGN - 1));
- vm_clone->init_functions_called =
- hash_create (0, /* value bytes */ 0);
vm_clone->pending_rpc_requests = 0;
vec_validate (vm_clone->pending_rpc_requests, 0);
_vec_len (vm_clone->pending_rpc_requests) = 0;
clib_memset (&vm_clone->random_buffer, 0,
sizeof (vm_clone->random_buffer));
+ clib_spinlock_init
+ (&vm_clone->worker_thread_main_loop_callback_lock);
+ clib_callback_data_init
+ (&vm_clone->vlib_node_runtime_perf_callbacks,
+ &vm_clone->worker_thread_main_loop_callback_lock);
- nm = &vlib_mains[0]->node_main;
+ nm = &vlib_get_first_main ()->node_main;
nm_clone = &vm_clone->node_main;
/* fork next frames array, preserving node runtime indices */
nm_clone->next_frames = vec_dup_aligned (nm->next_frames,
nm_clone->nodes_by_type[VLIB_NODE_TYPE_INPUT] =
vec_dup_aligned (nm->nodes_by_type[VLIB_NODE_TYPE_INPUT],
CLIB_CACHE_LINE_BYTES);
+ clib_interrupt_init (
+ &nm_clone->interrupts,
+ vec_len (nm_clone->nodes_by_type[VLIB_NODE_TYPE_INPUT]));
vec_foreach (rt, nm_clone->nodes_by_type[VLIB_NODE_TYPE_INPUT])
{
vlib_node_t *n = vlib_get_node (vm, rt->node_index);
/* Packet trace buffers are guaranteed to be empty, nothing to do here */
clib_mem_set_heap (oldheap);
- vec_add1_aligned (vlib_mains, vm_clone, CLIB_CACHE_LINE_BYTES);
+ vec_add1_aligned (vgm->vlib_mains, vm_clone,
+ CLIB_CACHE_LINE_BYTES);
/* Switch to the stats segment ... */
void *oldheap = vlib_stats_push_heap (0);
- vm_clone->error_main.counters = vec_dup_aligned
- (vlib_mains[0]->error_main.counters, CLIB_CACHE_LINE_BYTES);
+ vm_clone->error_main.counters =
+ vec_dup_aligned (vlib_get_first_main ()->error_main.counters,
+ CLIB_CACHE_LINE_BYTES);
vlib_stats_pop_heap2 (vm_clone->error_main.counters,
worker_thread_index, oldheap, 1);
- vm_clone->error_main.counters_last_clear = vec_dup_aligned
- (vlib_mains[0]->error_main.counters_last_clear,
- CLIB_CACHE_LINE_BYTES);
+ vm_clone->error_main.counters_last_clear = vec_dup_aligned (
+ vlib_get_first_main ()->error_main.counters_last_clear,
+ CLIB_CACHE_LINE_BYTES);
worker_thread_index++;
}
vec_add2 (vlib_worker_threads, w, 1);
if (tr->mheap_size)
{
- w->thread_mheap =
- create_mspace (tr->mheap_size, 0 /* locked */ );
+ w->thread_mheap = clib_mem_create_heap (0, tr->mheap_size,
+ /* locked */ 0,
+ "%s%d heap",
+ tr->name, j);
}
else
w->thread_mheap = main_heap;
(char *) format (0, "%s %d", tr->name, j + 1);
w->registration = tr;
vec_add1 (w->elog_track.name, 0);
- elog_track_register (&vm->elog_main, &w->elog_track);
+ elog_track_register (vlib_get_elog_main (), &w->elog_track);
}
}
}
{
uword c;
/* *INDENT-OFF* */
- clib_bitmap_foreach (c, tr->coremask, ({
+ clib_bitmap_foreach (c, tr->coremask) {
w = vlib_worker_threads + worker_thread_index++;
err = vlib_launch_thread_int (vlib_worker_thread_bootstrap_fn,
w, c);
if (err)
clib_error_report (err);
- }));
+ }
/* *INDENT-ON* */
}
}
vlib_node_main_t *nm, *nm_clone;
vlib_main_t *vm_clone;
vlib_node_runtime_t *rt;
- never_inline void
- vlib_node_runtime_sync_stats (vlib_main_t * vm,
- vlib_node_runtime_t * r,
- uword n_calls,
- uword n_vectors, uword n_clocks);
ASSERT (vlib_get_thread_index () == 0);
- vm = vlib_mains[0];
+ vm = vlib_get_first_main ();
nm = &vm->node_main;
ASSERT (*vlib_worker_threads->wait_at_barrier == 1);
vlib_node_sync_stats (vm, n);
}
- for (i = 1; i < vec_len (vlib_mains); i++)
+ for (i = 1; i < vlib_get_n_threads (); i++)
{
vlib_node_t *n;
- vm_clone = vlib_mains[i];
+ vm_clone = vlib_get_main_by_index (i);
nm_clone = &vm_clone->node_main;
for (j = 0; j < vec_len (nm_clone->nodes); j++)
int j;
- vm = vlib_mains[0];
+ vm = vlib_get_first_main ();
nm = &vm->node_main;
vm_clone = vlib_get_main ();
nm_clone = &vm_clone->node_main;
/* keep previous node state */
new_n_clone->state = old_n_clone->state;
+ new_n_clone->flags = old_n_clone->flags;
}
vec_add1 (nm_clone->nodes, new_n_clone);
new_n_clone++;
{
rt = vlib_node_get_runtime (vm_clone, old_rt[j].node_index);
rt->state = old_rt[j].state;
+ rt->flags = old_rt[j].flags;
clib_memcpy_fast (rt->runtime_data, old_rt[j].runtime_data,
VLIB_NODE_RUNTIME_DATA_SIZE);
}
nm_clone->nodes_by_type[VLIB_NODE_TYPE_INPUT] =
vec_dup_aligned (nm->nodes_by_type[VLIB_NODE_TYPE_INPUT],
CLIB_CACHE_LINE_BYTES);
+ clib_interrupt_resize (
+ &nm_clone->interrupts,
+ vec_len (nm_clone->nodes_by_type[VLIB_NODE_TYPE_INPUT]));
vec_foreach (rt, nm_clone->nodes_by_type[VLIB_NODE_TYPE_INPUT])
{
{
rt = vlib_node_get_runtime (vm_clone, old_rt[j].node_index);
rt->state = old_rt[j].state;
+ rt->flags = old_rt[j].flags;
clib_memcpy_fast (rt->runtime_data, old_rt[j].runtime_data,
VLIB_NODE_RUNTIME_DATA_SIZE);
}
{
rt = vlib_node_get_runtime (vm_clone, old_rt[j].node_index);
rt->state = old_rt[j].state;
+ rt->flags = old_rt[j].flags;
clib_memcpy_fast (rt->runtime_data, old_rt[j].runtime_data,
VLIB_NODE_RUNTIME_DATA_SIZE);
}
return clib_error_return (0,
"corelist cannot be set for '%s' threads",
name);
+ if (tr->count)
+ return clib_error_return
+ (0, "core placement of '%s' threads is already configured",
+ name);
tr->coremask = bitmap;
tr->count = clib_bitmap_count_set_bits (tr->coremask);
return clib_error_return (0, "no such thread type 3 '%s'", name);
tr = (vlib_thread_registration_t *) p[0];
+
if (tr->fixed_count)
return clib_error_return
- (0, "number of %s threads not configurable", tr->name);
+ (0, "number of '%s' threads not configurable", name);
+ if (tr->count)
+ return clib_error_return
+ (0, "number of '%s' threads is already configured", name);
+
tr->count = count;
}
else
VLIB_EARLY_CONFIG_FUNCTION (cpu_config, "cpu");
-void vnet_main_fixup (vlib_fork_fixup_t which) __attribute__ ((weak));
-void
-vnet_main_fixup (vlib_fork_fixup_t which)
-{
-}
-
-void
-vlib_worker_thread_fork_fixup (vlib_fork_fixup_t which)
-{
- vlib_main_t *vm = vlib_get_main ();
-
- if (vlib_mains == 0)
- return;
-
- ASSERT (vlib_get_thread_index () == 0);
- vlib_worker_thread_barrier_sync (vm);
-
- switch (which)
- {
- case VLIB_WORKER_THREAD_FORK_FIXUP_NEW_SW_IF_INDEX:
- vnet_main_fixup (VLIB_WORKER_THREAD_FORK_FIXUP_NEW_SW_IF_INDEX);
- break;
-
- default:
- ASSERT (0);
- }
- vlib_worker_thread_barrier_release (vm);
-}
-
/*
* Enforce minimum open time to minimize packet loss due to Rx overflow,
* based on a test based heuristic that barrier should be open for at least
{
f64 deadline;
f64 now = vlib_time_now (vm);
- u32 count = vec_len (vlib_mains) - 1;
+ u32 count = vlib_get_n_threads () - 1;
/* No worker threads? */
if (count == 0)
*vlib_worker_threads->wait_at_barrier = 0;
}
+/**
+ * Return true if the wroker thread barrier is held
+ */
+u8
+vlib_worker_thread_barrier_held (void)
+{
+ if (vlib_get_n_threads () < 2)
+ return (1);
+
+ return (*vlib_worker_threads->wait_at_barrier == 1);
+}
+
void
vlib_worker_thread_barrier_sync_int (vlib_main_t * vm, const char *func_name)
{
u32 count;
int i;
- if (vec_len (vlib_mains) < 2)
+ if (vlib_get_n_threads () < 2)
return;
ASSERT (vlib_get_thread_index () == 0);
vlib_worker_threads[0].barrier_caller = func_name;
- count = vec_len (vlib_mains) - 1;
+ count = vlib_get_n_threads () - 1;
/* Record entry relative to last close */
now = vlib_time_now (vm);
return;
}
+ if (PREDICT_FALSE (vec_len (vm->barrier_perf_callbacks) != 0))
+ clib_call_callbacks (vm->barrier_perf_callbacks, vm,
+ vm->clib_time.last_cpu_time, 0 /* enter */ );
+
/*
* Need data to decide if we're working hard enough to honor
* the barrier hold-down timer.
*/
max_vector_rate = 0.0;
- for (i = 1; i < vec_len (vlib_mains); i++)
- max_vector_rate =
- clib_max (max_vector_rate,
- (f64) vlib_last_vectors_per_main_loop (vlib_mains[i]));
+ for (i = 1; i < vlib_get_n_threads (); i++)
+ {
+ vlib_main_t *ovm = vlib_get_main_by_index (i);
+ max_vector_rate = clib_max (max_vector_rate,
+ (f64) vlib_last_vectors_per_main_loop (ovm));
+ }
vlib_worker_threads[0].barrier_sync_count++;
void
vlib_worker_thread_barrier_release (vlib_main_t * vm)
{
+ vlib_global_main_t *vgm = vlib_get_global_main ();
f64 deadline;
f64 now;
f64 minimum_open;
f64 t_update_main = 0.0;
int refork_needed = 0;
- if (vec_len (vlib_mains) < 2)
+ if (vlib_get_n_threads () < 2)
return;
ASSERT (vlib_get_thread_index () == 0);
}
/* Update (all) node runtimes before releasing the barrier, if needed */
- if (vm->need_vlib_worker_thread_node_runtime_update)
+ if (vgm->need_vlib_worker_thread_node_runtime_update)
{
/*
* Lock stat segment here, so we's safe when
/* Do stats elements on main thread */
worker_thread_node_runtime_update_internal ();
- vm->need_vlib_worker_thread_node_runtime_update = 0;
+ vgm->need_vlib_worker_thread_node_runtime_update = 0;
/* Do per thread rebuilds in parallel */
refork_needed = 1;
clib_atomic_fetch_add (vlib_worker_threads->node_reforks_required,
- (vec_len (vlib_mains) - 1));
+ (vlib_get_n_threads () - 1));
now = vlib_time_now (vm);
t_update_main = now - vm->barrier_epoch;
}
barrier_trace_release (t_entry, t_closed_total, t_update_main);
+ if (PREDICT_FALSE (vec_len (vm->barrier_perf_callbacks) != 0))
+ clib_call_callbacks (vm->barrier_perf_callbacks, vm,
+ vm->clib_time.last_cpu_time, 1 /* leave */ );
}
-/*
- * Check the frame queue to see if any frames are available.
- * If so, pull the packets off the frames and put them to
- * the handoff node.
+/**
+ * Wait until each of the workers has been once around the track
*/
-int
-vlib_frame_queue_dequeue (vlib_main_t * vm, vlib_frame_queue_main_t * fqm)
+void
+vlib_worker_wait_one_loop (void)
{
- u32 thread_id = vm->thread_index;
- vlib_frame_queue_t *fq = fqm->vlib_frame_queues[thread_id];
- vlib_frame_queue_elt_t *elt;
- u32 *from, *to;
- vlib_frame_t *f;
- int msg_type;
- int processed = 0;
- u32 n_left_to_node;
- u32 vectors = 0;
-
- ASSERT (fq);
- ASSERT (vm == vlib_mains[thread_id]);
-
- if (PREDICT_FALSE (fqm->node_index == ~0))
- return 0;
- /*
- * Gather trace data for frame queues
- */
- if (PREDICT_FALSE (fq->trace))
- {
- frame_queue_trace_t *fqt;
- frame_queue_nelt_counter_t *fqh;
- u32 elix;
-
- fqt = &fqm->frame_queue_traces[thread_id];
-
- fqt->nelts = fq->nelts;
- fqt->head = fq->head;
- fqt->head_hint = fq->head_hint;
- fqt->tail = fq->tail;
- fqt->threshold = fq->vector_threshold;
- fqt->n_in_use = fqt->tail - fqt->head;
- if (fqt->n_in_use >= fqt->nelts)
- {
- // if beyond max then use max
- fqt->n_in_use = fqt->nelts - 1;
- }
-
- /* Record the number of elements in use in the histogram */
- fqh = &fqm->frame_queue_histogram[thread_id];
- fqh->count[fqt->n_in_use]++;
-
- /* Record a snapshot of the elements in use */
- for (elix = 0; elix < fqt->nelts; elix++)
- {
- elt = fq->elts + ((fq->head + 1 + elix) & (fq->nelts - 1));
- if (1 || elt->valid)
- {
- fqt->n_vectors[elix] = elt->n_vectors;
- }
- }
- fqt->written = 1;
- }
-
- while (1)
- {
- vlib_buffer_t *b;
- if (fq->head == fq->tail)
- {
- fq->head_hint = fq->head;
- return processed;
- }
-
- elt = fq->elts + ((fq->head + 1) & (fq->nelts - 1));
-
- if (!elt->valid)
- {
- fq->head_hint = fq->head;
- return processed;
- }
-
- from = elt->buffer_index;
- msg_type = elt->msg_type;
-
- ASSERT (msg_type == VLIB_FRAME_QUEUE_ELT_DISPATCH_FRAME);
- ASSERT (elt->n_vectors <= VLIB_FRAME_SIZE);
-
- f = vlib_get_frame_to_node (vm, fqm->node_index);
-
- /* If the first vector is traced, set the frame trace flag */
- b = vlib_get_buffer (vm, from[0]);
- if (b->flags & VLIB_BUFFER_IS_TRACED)
- f->frame_flags |= VLIB_NODE_FLAG_TRACE;
-
- to = vlib_frame_vector_args (f);
+ vlib_global_main_t *vgm = vlib_get_global_main ();
+ ASSERT (vlib_get_thread_index () == 0);
- n_left_to_node = elt->n_vectors;
+ if (vlib_get_n_threads () < 2)
+ return;
- while (n_left_to_node >= 4)
- {
- to[0] = from[0];
- to[1] = from[1];
- to[2] = from[2];
- to[3] = from[3];
- to += 4;
- from += 4;
- n_left_to_node -= 4;
- }
+ if (vlib_worker_thread_barrier_held ())
+ return;
- while (n_left_to_node > 0)
- {
- to[0] = from[0];
- to++;
- from++;
- n_left_to_node--;
- }
+ u32 *counts = 0;
+ u32 ii;
- vectors += elt->n_vectors;
- f->n_vectors = elt->n_vectors;
- vlib_put_frame_to_node (vm, fqm->node_index, f);
+ vec_validate (counts, vlib_get_n_threads () - 1);
- elt->valid = 0;
- elt->n_vectors = 0;
- elt->msg_type = 0xfefefefe;
- CLIB_MEMORY_BARRIER ();
- fq->head++;
- processed++;
+ /* record the current loop counts */
+ vec_foreach_index (ii, vgm->vlib_mains)
+ counts[ii] = vgm->vlib_mains[ii]->main_loop_count;
- /*
- * Limit the number of packets pushed into the graph
- */
- if (vectors >= fq->vector_threshold)
- {
- fq->head_hint = fq->head;
- return processed;
- }
+ /* spin until each changes, apart from the main thread, or we'd be
+ * a while */
+ for (ii = 1; ii < vec_len (counts); ii++)
+ {
+ while (counts[ii] == vgm->vlib_mains[ii]->main_loop_count)
+ CLIB_PAUSE ();
}
- ASSERT (0);
- return processed;
+
+ vec_free (counts);
+ return;
}
void
vlib_worker_thread_fn (void *arg)
{
+ vlib_global_main_t *vgm = vlib_get_global_main ();
vlib_worker_thread_t *w = (vlib_worker_thread_t *) arg;
vlib_thread_main_t *tm = vlib_get_thread_main ();
vlib_main_t *vm = vlib_get_main ();
clib_error_t *e;
+ vlib_process_finish_switch_stack (vm);
+
ASSERT (vm->thread_index == vlib_get_thread_index ());
vlib_worker_thread_init (w);
clib_time_init (&vm->clib_time);
clib_mem_set_heap (w->thread_mheap);
- e = vlib_call_init_exit_functions_no_sort
- (vm, &vm->worker_init_function_registrations, 1 /* call_once */ );
+ vm->worker_init_functions_called = hash_create (0, 0);
+
+ e = vlib_call_init_exit_functions_no_sort (
+ vm, &vgm->worker_init_function_registrations, 1 /* call_once */,
+ 0 /* is_global */);
if (e)
clib_error_report (e);
vlib_frame_queue_main_t *fqm;
vlib_frame_queue_t *fq;
int i;
+ u32 num_threads;
if (frame_queue_nelts == 0)
frame_queue_nelts = FRAME_QUEUE_MAX_NELTS;
- ASSERT (frame_queue_nelts >= 8);
+ num_threads = 1 /* main thread */ + tm->n_threads;
+ ASSERT (frame_queue_nelts >= 8 + num_threads);
vec_add2 (tm->frame_queue_mains, fqm, 1);
fqm->node_index = node_index;
fqm->frame_queue_nelts = frame_queue_nelts;
- fqm->queue_hi_thresh = frame_queue_nelts - 2;
+ fqm->queue_hi_thresh = frame_queue_nelts - num_threads;
vec_validate (fqm->vlib_frame_queues, tm->n_vlib_mains - 1);
vec_validate (fqm->per_thread_data, tm->n_vlib_mains - 1);
{
int i;
int verbose = 0;
+ clib_timebase_t _tb, *tb = &_tb;
(void) unformat (input, "verbose %=", &verbose, 1);
- vlib_cli_output (vm, "%U", format_clib_time, &vm->clib_time, verbose);
+ clib_timebase_init (tb, 0 /* GMT */ , CLIB_TIMEBASE_DAYLIGHT_NONE,
+ &vm->clib_time);
- if (vec_len (vlib_mains) == 1)
+ vlib_cli_output (vm, "%U, %U GMT", format_clib_time, &vm->clib_time,
+ verbose, format_clib_timebase_time,
+ clib_timebase_now (tb));
+
+ if (vlib_get_n_threads () == 1)
return 0;
vlib_cli_output (vm, "Time last barrier release %.9f",
vm->time_last_barrier_release);
- for (i = 1; i < vec_len (vlib_mains); i++)
+ for (i = 1; i < vlib_get_n_threads (); i++)
{
- if (vlib_mains[i] == 0)
+ vlib_main_t *ovm = vlib_get_main_by_index (i);
+ if (ovm == 0)
continue;
- vlib_cli_output (vm, "%d: %U", i, format_clib_time,
- &vlib_mains[i]->clib_time, verbose);
+ vlib_cli_output (vm, "%d: %U", i, format_clib_time, &ovm->clib_time,
+ verbose);
- vlib_cli_output (vm, "Thread %d offset %.9f error %.9f", i,
- vlib_mains[i]->time_offset,
- vm->time_last_barrier_release -
- vlib_mains[i]->time_last_barrier_release);
+ vlib_cli_output (
+ vm, "Thread %d offset %.9f error %.9f", i, ovm->time_offset,
+ vm->time_last_barrier_release - ovm->time_last_barrier_release);
}
return 0;
}
};
/* *INDENT-ON* */
+vlib_thread_main_t *
+vlib_get_thread_main_not_inline (void)
+{
+ return vlib_get_thread_main ();
+}
+
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / blobdiff