* See the License for the specific language governing permissions and
* limitations under the License.
*/
+#define _GNU_SOURCE
+
#include <signal.h>
#include <math.h>
#include <vppinfra/format.h>
#include <vlib/vlib.h>
#include <vlib/threads.h>
-#include <vlib/unix/physmem.h>
-
#include <vlib/unix/cj.h>
+
#if DPDK==1
#include <rte_config.h>
#include <rte_common.h>
* Weak definitions of DPDK symbols used in this file.
* Needed for linking test programs without DPDK libs.
*/
-unsigned __thread __attribute__((weak)) RTE_PER_LCORE(_lcore_id);
-struct lcore_config __attribute__((weak)) lcore_config[];
-unsigned __attribute__((weak)) rte_socket_id();
-int __attribute__((weak)) rte_eal_remote_launch();
+unsigned __thread __attribute__ ((weak)) RTE_PER_LCORE (_lcore_id);
+struct lcore_config __attribute__ ((weak)) lcore_config[];
+unsigned __attribute__ ((weak)) rte_socket_id ();
+int __attribute__ ((weak)) rte_eal_remote_launch ();
#endif
-u32 vl(void *p)
+u32
+vl (void *p)
{
return vec_len (p);
}
-void debug_hex_bytes (u8 *s, u32 n)
-{
- fformat (stderr, "%U\n", format_hex_bytes, s, n);
-}
-
vlib_thread_main_t vlib_thread_main;
uword
os_get_cpu_number (void)
{
- void * sp;
+ void *sp;
uword n;
u32 len;
/* Get any old stack address. */
sp = &sp;
- n = ((uword)sp - (uword)vlib_thread_stacks[0])
- >> VLIB_LOG2_THREAD_STACK_SIZE;
+ n = ((uword) sp - (uword) vlib_thread_stacks[0])
+ >> VLIB_LOG2_THREAD_STACK_SIZE;
/* "processes" have their own stacks, and they always run in thread 0 */
n = n >= len ? 0 : n;
return n;
}
+uword
+os_get_ncpus (void)
+{
+ u32 len;
+
+ len = vec_len (vlib_thread_stacks);
+ if (len == 0)
+ return 1;
+ else
+ return len;
+}
+
void
vlib_set_thread_name (char *name)
{
int pthread_setname_np (pthread_t __target_thread, const char *__name);
- pthread_t thread = pthread_self();
+ int rv;
+ pthread_t thread = pthread_self ();
- if (thread)
- pthread_setname_np(thread, name);
+ if (thread)
+ {
+ rv = pthread_setname_np (thread, name);
+ if (rv)
+ clib_warning ("pthread_setname_np returned %d", rv);
+ }
}
-static int sort_registrations_by_no_clone (void *a0, void * a1)
-{
- vlib_thread_registration_t ** tr0 = a0;
- vlib_thread_registration_t ** tr1 = a1;
+static int
+sort_registrations_by_no_clone (void *a0, void *a1)
+{
+ vlib_thread_registration_t **tr0 = a0;
+ vlib_thread_registration_t **tr1 = a1;
- return ((i32)((*tr0)->no_data_structure_clone)
- - ((i32)((*tr1)->no_data_structure_clone)));
+ return ((i32) ((*tr0)->no_data_structure_clone)
+ - ((i32) ((*tr1)->no_data_structure_clone)));
}
static uword *
-vlib_sysfs_list_to_bitmap(char * filename)
+vlib_sysfs_list_to_bitmap (char *filename)
{
FILE *fp;
uword *r = 0;
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));
- unformat(&in, "%U", unformat_bitmap_list, &r);
- unformat_free (&in);
- }
- vec_free(buffer);
- fclose(fp);
+ 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;
}
clib_error_t *
vlib_thread_init (vlib_main_t * vm)
{
- vlib_thread_main_t * tm = &vlib_thread_main;
- vlib_worker_thread_t * w;
- vlib_thread_registration_t * tr;
+ vlib_thread_main_t *tm = &vlib_thread_main;
+ vlib_worker_thread_t *w;
+ vlib_thread_registration_t *tr;
u32 n_vlib_mains = 1;
u32 first_index = 1;
u32 i;
- uword * avail_cpu;
+ uword *avail_cpu;
/* get bitmaps of active cpu cores and sockets */
tm->cpu_core_bitmap =
- vlib_sysfs_list_to_bitmap("/sys/devices/system/cpu/online");
+ vlib_sysfs_list_to_bitmap ("/sys/devices/system/cpu/online");
tm->cpu_socket_bitmap =
- vlib_sysfs_list_to_bitmap("/sys/devices/system/node/online");
+ vlib_sysfs_list_to_bitmap ("/sys/devices/system/node/online");
- avail_cpu = clib_bitmap_dup(tm->cpu_core_bitmap);
+ avail_cpu = clib_bitmap_dup (tm->cpu_core_bitmap);
/* skip cores */
- for (i=0; i < tm->skip_cores; i++)
+ for (i = 0; i < tm->skip_cores; i++)
{
- uword c = clib_bitmap_first_set(avail_cpu);
+ uword c = clib_bitmap_first_set (avail_cpu);
if (c == ~0)
- return clib_error_return (0, "no available cpus to skip");
+ return clib_error_return (0, "no available cpus to skip");
- avail_cpu = clib_bitmap_set(avail_cpu, c, 0);
+ avail_cpu = clib_bitmap_set (avail_cpu, c, 0);
}
/* grab cpu for main thread */
if (!tm->main_lcore)
{
- tm->main_lcore = clib_bitmap_first_set(avail_cpu);
- if (tm->main_lcore == ~0)
- return clib_error_return (0, "no available cpus to be used for the"
- " main thread");
+ tm->main_lcore = clib_bitmap_first_set (avail_cpu);
+ if (tm->main_lcore == (u8) ~ 0)
+ return clib_error_return (0, "no available cpus to be used for the"
+ " main thread");
}
else
{
- if (clib_bitmap_get(avail_cpu, tm->main_lcore) == 0)
- return clib_error_return (0, "cpu %u is not available to be used"
- " for the main thread", tm->main_lcore);
+ if (clib_bitmap_get (avail_cpu, tm->main_lcore) == 0)
+ return clib_error_return (0, "cpu %u is not available to be used"
+ " for the main thread", tm->main_lcore);
}
- avail_cpu = clib_bitmap_set(avail_cpu, tm->main_lcore, 0);
+ avail_cpu = clib_bitmap_set (avail_cpu, tm->main_lcore, 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);
+ tm->cpu_socket_bitmap = clib_bitmap_set (0, 0, 1);
+
+ /* pin main thread to main_lcore */
+#if DPDK==0
+ {
+ cpu_set_t cpuset;
+ CPU_ZERO (&cpuset);
+ CPU_SET (tm->main_lcore, &cpuset);
+ pthread_setaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset);
+ }
+#endif
/* as many threads as stacks... */
- vec_validate_aligned (vlib_worker_threads, vec_len(vlib_thread_stacks)-1,
- CLIB_CACHE_LINE_BYTES);
+ vec_validate_aligned (vlib_worker_threads, vec_len (vlib_thread_stacks) - 1,
+ CLIB_CACHE_LINE_BYTES);
/* Preallocate thread 0 */
- _vec_len(vlib_worker_threads) = 1;
+ _vec_len (vlib_worker_threads) = 1;
w = vlib_worker_threads;
- w->thread_mheap = clib_mem_get_heap();
+ w->thread_mheap = clib_mem_get_heap ();
w->thread_stack = vlib_thread_stacks[0];
w->dpdk_lcore_id = -1;
- w->lwp = syscall(SYS_gettid);
+ w->lwp = syscall (SYS_gettid);
tm->n_vlib_mains = 1;
+ if (tm->sched_policy != ~0)
+ {
+ struct sched_param sched_param;
+ if (!sched_getparam (w->lwp, &sched_param))
+ {
+ if (tm->sched_priority != ~0)
+ sched_param.sched_priority = tm->sched_priority;
+ sched_setscheduler (w->lwp, tm->sched_policy, &sched_param);
+ }
+ }
+
/* assign threads to cores and set n_vlib_mains */
tr = tm->next;
tr = tr->next;
}
- vec_sort_with_function
- (tm->registrations, sort_registrations_by_no_clone);
+ vec_sort_with_function (tm->registrations, sort_registrations_by_no_clone);
for (i = 0; i < vec_len (tm->registrations); i++)
{
/* construct coremask */
if (tr->use_pthreads || !tr->count)
- continue;
+ continue;
if (tr->coremask)
- {
- uword c;
+ {
+ uword c;
+ /* *INDENT-OFF* */
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"
avail_cpu = clib_bitmap_set(avail_cpu, c, 0);
}));
+/* *INDENT-ON* */
- }
+ }
else
- {
- for (j=0; j < tr->count; j++)
- {
- uword c = clib_bitmap_first_set(avail_cpu);
- 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, c, 0);
- tr->coremask = clib_bitmap_set(tr->coremask, c, 1);
- }
- }
+ {
+ for (j = 0; j < tr->count; j++)
+ {
+ uword c = clib_bitmap_first_set (avail_cpu);
+ 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, c, 0);
+ tr->coremask = clib_bitmap_set (tr->coremask, c, 1);
+ }
+ }
}
- clib_bitmap_free(avail_cpu);
+ clib_bitmap_free (avail_cpu);
tm->n_vlib_mains = n_vlib_mains;
- vec_validate_aligned (vlib_worker_threads, first_index-1,
- CLIB_CACHE_LINE_BYTES);
+ vec_validate_aligned (vlib_worker_threads, first_index - 1,
+ CLIB_CACHE_LINE_BYTES);
tm->efd.enabled = VLIB_EFD_DISABLED;
tm->efd.queue_hi_thresh = ((VLIB_EFD_DEF_WORKER_HI_THRESH_PCT *
- FRAME_QUEUE_NELTS)/100);
+ FRAME_QUEUE_NELTS) / 100);
return 0;
}
vlib_worker_thread_t *
vlib_alloc_thread (vlib_main_t * vm)
{
- vlib_worker_thread_t * w;
+ vlib_worker_thread_t *w;
- if (vec_len(vlib_worker_threads) >= vec_len (vlib_thread_stacks))
+ if (vec_len (vlib_worker_threads) >= vec_len (vlib_thread_stacks))
{
clib_warning ("out of worker threads... Quitting...");
- exit(1);
+ exit (1);
}
vec_add2 (vlib_worker_threads, w, 1);
w->thread_stack = vlib_thread_stacks[w - vlib_worker_threads];
return w;
}
-vlib_frame_queue_t * vlib_frame_queue_alloc (int nelts)
+vlib_frame_queue_t *
+vlib_frame_queue_alloc (int nelts)
{
- vlib_frame_queue_t * fq;
+ vlib_frame_queue_t *fq;
- fq = clib_mem_alloc_aligned(sizeof (*fq), CLIB_CACHE_LINE_BYTES);
+ fq = clib_mem_alloc_aligned (sizeof (*fq), CLIB_CACHE_LINE_BYTES);
memset (fq, 0, sizeof (*fq));
fq->nelts = nelts;
- fq->vector_threshold = 128; // packets
- vec_validate_aligned (fq->elts, nelts-1, CLIB_CACHE_LINE_BYTES);
+ fq->vector_threshold = 128; // packets
+ vec_validate_aligned (fq->elts, nelts - 1, CLIB_CACHE_LINE_BYTES);
if (1)
- {
- if (((uword)&fq->tail) & (CLIB_CACHE_LINE_BYTES - 1))
- fformat(stderr, "WARNING: fq->tail unaligned\n");
- if (((uword)&fq->head) & (CLIB_CACHE_LINE_BYTES - 1))
- fformat(stderr, "WARNING: fq->head unaligned\n");
- if (((uword)fq->elts) & (CLIB_CACHE_LINE_BYTES - 1))
- fformat(stderr, "WARNING: fq->elts unaligned\n");
-
- if (sizeof (fq->elts[0]) % CLIB_CACHE_LINE_BYTES)
- fformat(stderr, "WARNING: fq->elts[0] size %d\n",
- sizeof (fq->elts[0]));
- if (nelts & (nelts -1))
- {
- fformat (stderr, "FATAL: nelts MUST be a power of 2\n");
- abort();
- }
- }
-
+ {
+ if (((uword) & fq->tail) & (CLIB_CACHE_LINE_BYTES - 1))
+ fformat (stderr, "WARNING: fq->tail unaligned\n");
+ if (((uword) & fq->head) & (CLIB_CACHE_LINE_BYTES - 1))
+ fformat (stderr, "WARNING: fq->head unaligned\n");
+ if (((uword) fq->elts) & (CLIB_CACHE_LINE_BYTES - 1))
+ fformat (stderr, "WARNING: fq->elts unaligned\n");
+
+ if (sizeof (fq->elts[0]) % CLIB_CACHE_LINE_BYTES)
+ fformat (stderr, "WARNING: fq->elts[0] size %d\n",
+ sizeof (fq->elts[0]));
+ if (nelts & (nelts - 1))
+ {
+ fformat (stderr, "FATAL: nelts MUST be a power of 2\n");
+ abort ();
+ }
+ }
+
return (fq);
}
void vl_msg_api_handler_no_free (void *) __attribute__ ((weak));
-void vl_msg_api_handler_no_free (void *v) { }
+void
+vl_msg_api_handler_no_free (void *v)
+{
+}
/* Turned off, save as reference material... */
#if 0
-static inline int vlib_frame_queue_dequeue_internal (int thread_id,
- vlib_main_t *vm,
- vlib_node_main_t *nm)
+static inline int
+vlib_frame_queue_dequeue_internal (int thread_id,
+ vlib_main_t * vm, vlib_node_main_t * nm)
{
vlib_frame_queue_t *fq = vlib_frame_queues[thread_id];
vlib_frame_queue_elt_t *elt;
int msg_type;
u64 before;
int processed = 0;
-
- ASSERT(vm == vlib_mains[thread_id]);
+
+ ASSERT (vm == vlib_mains[thread_id]);
while (1)
{
if (fq->head == fq->tail)
- return processed;
+ return processed;
- elt = fq->elts + ((fq->head+1) & (fq->nelts-1));
+ elt = fq->elts + ((fq->head + 1) & (fq->nelts - 1));
if (!elt->valid)
- return processed;
+ return processed;
- before = clib_cpu_time_now();
+ before = clib_cpu_time_now ();
f = elt->frame;
node_runtime_index = elt->node_runtime_index;
msg_type = elt->msg_type;
switch (msg_type)
- {
- case VLIB_FRAME_QUEUE_ELT_FREE_BUFFERS:
- vlib_buffer_free (vm, vlib_frame_vector_args (f), f->n_vectors);
- /* note fallthrough... */
- case VLIB_FRAME_QUEUE_ELT_FREE_FRAME:
- r = vec_elt_at_index (nm->nodes_by_type[VLIB_NODE_TYPE_INTERNAL],
- node_runtime_index);
- vlib_frame_free (vm, r, f);
- break;
- case VLIB_FRAME_QUEUE_ELT_DISPATCH_FRAME:
- vec_add2 (vm->node_main.pending_frames, p, 1);
- f->flags |= (VLIB_FRAME_PENDING | VLIB_FRAME_FREE_AFTER_DISPATCH);
- p->node_runtime_index = elt->node_runtime_index;
- p->frame_index = vlib_frame_index (vm, f);
- p->next_frame_index = VLIB_PENDING_FRAME_NO_NEXT_FRAME;
- fq->dequeue_vectors += (u64) f->n_vectors;
- break;
- case VLIB_FRAME_QUEUE_ELT_API_MSG:
- vl_msg_api_handler_no_free (f);
- break;
- default:
- clib_warning ("bogus frame queue message, type %d", msg_type);
- break;
- }
+ {
+ case VLIB_FRAME_QUEUE_ELT_FREE_BUFFERS:
+ vlib_buffer_free (vm, vlib_frame_vector_args (f), f->n_vectors);
+ /* note fallthrough... */
+ case VLIB_FRAME_QUEUE_ELT_FREE_FRAME:
+ r = vec_elt_at_index (nm->nodes_by_type[VLIB_NODE_TYPE_INTERNAL],
+ node_runtime_index);
+ vlib_frame_free (vm, r, f);
+ break;
+ case VLIB_FRAME_QUEUE_ELT_DISPATCH_FRAME:
+ vec_add2 (vm->node_main.pending_frames, p, 1);
+ f->flags |= (VLIB_FRAME_PENDING | VLIB_FRAME_FREE_AFTER_DISPATCH);
+ p->node_runtime_index = elt->node_runtime_index;
+ p->frame_index = vlib_frame_index (vm, f);
+ p->next_frame_index = VLIB_PENDING_FRAME_NO_NEXT_FRAME;
+ fq->dequeue_vectors += (u64) f->n_vectors;
+ break;
+ case VLIB_FRAME_QUEUE_ELT_API_MSG:
+ vl_msg_api_handler_no_free (f);
+ break;
+ default:
+ clib_warning ("bogus frame queue message, type %d", msg_type);
+ break;
+ }
elt->valid = 0;
fq->dequeues++;
- fq->dequeue_ticks += clib_cpu_time_now() - before;
- CLIB_MEMORY_BARRIER();
+ fq->dequeue_ticks += clib_cpu_time_now () - before;
+ CLIB_MEMORY_BARRIER ();
fq->head++;
processed++;
}
- ASSERT(0);
+ ASSERT (0);
return processed;
}
-int vlib_frame_queue_dequeue (int thread_id,
- vlib_main_t *vm,
- vlib_node_main_t *nm)
+int
+vlib_frame_queue_dequeue (int thread_id,
+ vlib_main_t * vm, vlib_node_main_t * nm)
{
return vlib_frame_queue_dequeue_internal (thread_id, vm, nm);
}
-int vlib_frame_queue_enqueue (vlib_main_t *vm, u32 node_runtime_index,
- u32 frame_queue_index, vlib_frame_t *frame,
- vlib_frame_queue_msg_type_t type)
+int
+vlib_frame_queue_enqueue (vlib_main_t * vm, u32 node_runtime_index,
+ u32 frame_queue_index, vlib_frame_t * frame,
+ vlib_frame_queue_msg_type_t type)
{
vlib_frame_queue_t *fq = vlib_frame_queues[frame_queue_index];
vlib_frame_queue_elt_t *elt;
u32 save_count;
u64 new_tail;
- u64 before = clib_cpu_time_now();
-
+ u64 before = clib_cpu_time_now ();
+
ASSERT (fq);
new_tail = __sync_add_and_fetch (&fq->tail, 1);
// vlib_frame_queue_dequeue (vm->cpu_index, vm, nm);
}
- elt = fq->elts + (new_tail & (fq->nelts-1));
+ elt = fq->elts + (new_tail & (fq->nelts - 1));
/* this would be very bad... */
- while (elt->valid)
+ while (elt->valid)
{
}
elt->frame = frame;
elt->node_runtime_index = node_runtime_index;
elt->msg_type = type;
- CLIB_MEMORY_BARRIER();
+ CLIB_MEMORY_BARRIER ();
elt->valid = 1;
return save_count;
#endif /* 0 */
/* To be called by vlib worker threads upon startup */
-void vlib_worker_thread_init (vlib_worker_thread_t * w)
+void
+vlib_worker_thread_init (vlib_worker_thread_t * w)
{
- vlib_thread_main_t *tm = vlib_get_thread_main();
-
+ vlib_thread_main_t *tm = vlib_get_thread_main ();
+
/* worker threads wants no signals. */
{
sigset_t s;
clib_mem_set_heap (w->thread_mheap);
- if (vec_len(tm->thread_prefix) && w->registration->short_name)
+ if (vec_len (tm->thread_prefix) && w->registration->short_name)
{
- w->name = format(0, "%v_%s_%d%c", tm->thread_prefix,
- w->registration->short_name,
- w->instance_id,
- '\0');
- vlib_set_thread_name((char *)w->name);
+ w->name = format (0, "%v_%s_%d%c", tm->thread_prefix,
+ w->registration->short_name, w->instance_id, '\0');
+ vlib_set_thread_name ((char *) w->name);
}
if (!w->registration->use_pthreads)
clib_smp_atomic_add (vlib_worker_threads->workers_at_barrier, 1);
while (*vlib_worker_threads->wait_at_barrier)
- ;
+ ;
clib_smp_atomic_add (vlib_worker_threads->workers_at_barrier, -1);
}
}
-void *vlib_worker_thread_bootstrap_fn (void *arg)
+void *
+vlib_worker_thread_bootstrap_fn (void *arg)
{
void *rv;
vlib_worker_thread_t *w = arg;
-
- w->lwp = syscall(SYS_gettid);
+
+ w->lwp = syscall (SYS_gettid);
w->dpdk_lcore_id = -1;
#if DPDK==1
- if (w->registration && !w->registration->use_pthreads &&
- rte_socket_id) /* do we really have dpdk linked */
+ if (w->registration && !w->registration->use_pthreads && rte_socket_id) /* do we really have dpdk linked */
{
- unsigned lcore = rte_lcore_id();
+ unsigned lcore = rte_lcore_id ();
lcore = lcore < RTE_MAX_LCORE ? lcore : -1;
w->dpdk_lcore_id = lcore;
}
#endif
- rv = (void *) clib_calljmp
- ((uword (*)(uword)) w->thread_function,
- (uword) arg, w->thread_stack + VLIB_THREAD_STACK_SIZE);
+ rv = (void *) clib_calljmp
+ ((uword (*)(uword)) w->thread_function,
+ (uword) arg, w->thread_stack + VLIB_THREAD_STACK_SIZE);
/* NOTREACHED, we hope */
return rv;
}
static int
-vlib_launch_thread (void *fp, vlib_worker_thread_t *w, unsigned lcore_id)
+vlib_launch_thread (void *fp, vlib_worker_thread_t * w, unsigned lcore_id)
{
- pthread_t dummy;
- void *(*fp_arg)(void *) = fp;
+ void *(*fp_arg) (void *) = fp;
#if DPDK==1
if (!w->registration->use_pthreads)
- if (rte_eal_remote_launch) /* do we have dpdk linked */
- return rte_eal_remote_launch (fp, (void *)w, lcore_id);
+ if (rte_eal_remote_launch) /* do we have dpdk linked */
+ return rte_eal_remote_launch (fp, (void *) w, lcore_id);
else
return -1;
else
#endif
- return pthread_create (&dummy, NULL /* attr */, fp_arg, (void *)w);
+ {
+ int ret;
+ pthread_t worker;
+ cpu_set_t cpuset;
+ CPU_ZERO (&cpuset);
+ CPU_SET (lcore_id, &cpuset);
+
+ ret = pthread_create (&worker, NULL /* attr */ , fp_arg, (void *) w);
+ if (ret == 0)
+ return pthread_setaffinity_np (worker, sizeof (cpu_set_t), &cpuset);
+ else
+ return ret;
+ }
}
-static clib_error_t * start_workers (vlib_main_t * vm)
+static clib_error_t *
+start_workers (vlib_main_t * vm)
{
int i, j;
vlib_worker_thread_t *w;
vlib_main_t *vm_clone;
void *oldheap;
vlib_frame_queue_t *fq;
- vlib_thread_main_t * tm = &vlib_thread_main;
- vlib_thread_registration_t * tr;
- vlib_node_runtime_t * rt;
+ vlib_thread_main_t *tm = &vlib_thread_main;
+ vlib_thread_registration_t *tr;
+ 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 ();
+ mheap_t *main_heap_header = mheap_header (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 = "thread 0";
+ w->elog_track.name = "main thread";
elog_track_register (&vm->elog_main, &w->elog_track);
- if (vec_len(tm->thread_prefix))
+ if (vec_len (tm->thread_prefix))
{
- w->name = format(0, "%v_main%c", tm->thread_prefix, '\0');
- vlib_set_thread_name((char *)w->name);
+ w->name = format (0, "%v_main%c", tm->thread_prefix, '\0');
+ vlib_set_thread_name ((char *) w->name);
}
#if DPDK==1
w->dpdk_lcore_id = -1;
- if (rte_socket_id) /* do we really have dpdk linked */
+ if (rte_socket_id) /* do we really have dpdk linked */
{
- unsigned lcore = rte_lcore_id();
+ unsigned lcore = rte_lcore_id ();
w->dpdk_lcore_id = lcore < RTE_MAX_LCORE ? lcore : -1;;
}
#endif
+ /*
+ * Truth of the matter: we always use at least two
+ * threads. So, make the main heap thread-safe
+ * and make the event log thread-safe.
+ */
+ main_heap_header->flags |= MHEAP_FLAG_THREAD_SAFE;
+ vm->elog_main.lock =
+ clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES, CLIB_CACHE_LINE_BYTES);
+ vm->elog_main.lock[0] = 0;
+
if (n_vlib_mains > 1)
{
- u8 * heap = clib_mem_get_per_cpu_heap();
- mheap_t * h = mheap_header (heap);
-
- /* make the main heap thread-safe */
- h->flags |= MHEAP_FLAG_THREAD_SAFE;
-
- /* Make the event-log MP-safe */
- vm->elog_main.lock =
- clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
- CLIB_CACHE_LINE_BYTES);
-
- vm->elog_main.lock[0] = 0;
-
vec_validate (vlib_mains, tm->n_vlib_mains - 1);
_vec_len (vlib_mains) = 0;
vec_add1 (vlib_mains, vm);
fq = vlib_frame_queue_alloc (FRAME_QUEUE_NELTS);
vec_add1 (vlib_frame_queues, fq);
- vlib_worker_threads->wait_at_barrier =
- clib_mem_alloc_aligned (sizeof (u32), CLIB_CACHE_LINE_BYTES);
+ vlib_worker_threads->wait_at_barrier =
+ clib_mem_alloc_aligned (sizeof (u32), CLIB_CACHE_LINE_BYTES);
vlib_worker_threads->workers_at_barrier =
- clib_mem_alloc_aligned (sizeof (u32), CLIB_CACHE_LINE_BYTES);
+ clib_mem_alloc_aligned (sizeof (u32), CLIB_CACHE_LINE_BYTES);
/* Ask for an initial barrier sync */
*vlib_worker_threads->workers_at_barrier = 0;
worker_thread_index = 1;
- for (i = 0; i < vec_len(tm->registrations); i++)
- {
- vlib_node_main_t *nm, *nm_clone;
- vlib_buffer_main_t *bm_clone;
- vlib_buffer_free_list_t *fl_clone, *fl_orig;
- vlib_buffer_free_list_t *orig_freelist_pool;
- int k;
-
- tr = tm->registrations[i];
-
- if (tr->count == 0)
- continue;
-
- for (k = 0; k < tr->count; k++)
- {
- vec_add2 (vlib_worker_threads, w, 1);
- /*
- * Share the main heap which is now thread-safe.
- *
- * To allocate separate heaps, code:
- * mheap_alloc (0 / * use VM * /, tr->mheap_size);
- */
- w->thread_mheap = heap;
- w->thread_stack = vlib_thread_stacks[w - vlib_worker_threads];
- w->thread_function = tr->function;
- w->thread_function_arg = w;
- w->instance_id = k;
- w->registration = tr;
-
- w->elog_track.name = (char *) format (0, "thread %d", i+1);
- vec_add1 (w->elog_track.name, 0);
- elog_track_register (&vm->elog_main, &w->elog_track);
-
- if (tr->no_data_structure_clone)
- continue;
-
- /* Allocate "to-worker-N" frame queue */
- fq = vlib_frame_queue_alloc (FRAME_QUEUE_NELTS);
- vec_validate (vlib_frame_queues, worker_thread_index);
- vlib_frame_queues[worker_thread_index] = fq;
-
- /* Fork vlib_global_main et al. Look for bugs here */
- oldheap = clib_mem_set_heap (w->thread_mheap);
-
- vm_clone = clib_mem_alloc (sizeof (*vm_clone));
- memcpy (vm_clone, vlib_mains[0], sizeof (*vm_clone));
-
- vm_clone->cpu_index = worker_thread_index;
- vm_clone->heap_base = w->thread_mheap;
- vm_clone->mbuf_alloc_list = 0;
- memset (&vm_clone->random_buffer, 0, sizeof (vm_clone->random_buffer));
-
- nm = &vlib_mains[0]->node_main;
- nm_clone = &vm_clone->node_main;
- /* fork next frames array, preserving node runtime indices */
- nm_clone->next_frames = vec_dup (nm->next_frames);
- for (j = 0; j < vec_len (nm_clone->next_frames); j++)
- {
- vlib_next_frame_t *nf = &nm_clone->next_frames[j];
- u32 save_node_runtime_index;
-
- save_node_runtime_index = nf->node_runtime_index;
- vlib_next_frame_init (nf);
- nf->node_runtime_index = save_node_runtime_index;
- }
-
- /* fork the frame dispatch queue */
- nm_clone->pending_frames = 0;
- vec_validate (nm_clone->pending_frames, 10); /* $$$$$?????? */
- _vec_len (nm_clone->pending_frames) = 0;
-
- /* fork nodes */
- nm_clone->nodes = 0;
- for (j = 0; j < vec_len (nm->nodes); j++)
- {
- vlib_node_t *n;
- n = clib_mem_alloc_no_fail (sizeof(*n));
- memcpy (n, nm->nodes[j], sizeof (*n));
- /* none of the copied nodes have enqueue rights given out */
- n->owner_node_index = VLIB_INVALID_NODE_INDEX;
- memset (&n->stats_total, 0, sizeof (n->stats_total));
- memset (&n->stats_last_clear, 0, sizeof (n->stats_last_clear));
- vec_add1 (nm_clone->nodes, n);
- }
- nm_clone->nodes_by_type[VLIB_NODE_TYPE_INTERNAL] =
- vec_dup (nm->nodes_by_type[VLIB_NODE_TYPE_INTERNAL]);
-
- nm_clone->nodes_by_type[VLIB_NODE_TYPE_INPUT] =
- vec_dup (nm->nodes_by_type[VLIB_NODE_TYPE_INPUT]);
- vec_foreach(rt, nm_clone->nodes_by_type[VLIB_NODE_TYPE_INPUT])
- rt->cpu_index = vm_clone->cpu_index;
-
- nm_clone->processes = vec_dup (nm->processes);
-
- /* zap the (per worker) frame freelists, etc */
- nm_clone->frame_sizes = 0;
- nm_clone->frame_size_hash = 0;
-
- /* Packet trace buffers are guaranteed to be empty, nothing to do here */
-
- clib_mem_set_heap (oldheap);
- vec_add1 (vlib_mains, vm_clone);
-
- unix_physmem_init (vm_clone, 0 /* physmem not required */);
-
- vm_clone->error_main.counters =
- vec_dup(vlib_mains[0]->error_main.counters);
- vm_clone->error_main.counters_last_clear =
- vec_dup(vlib_mains[0]->error_main.counters_last_clear);
-
- /* Fork the vlib_buffer_main_t free lists, etc. */
- bm_clone = vec_dup (vm_clone->buffer_main);
- vm_clone->buffer_main = bm_clone;
-
- orig_freelist_pool = bm_clone->buffer_free_list_pool;
- bm_clone->buffer_free_list_pool = 0;
-
+ for (i = 0; i < vec_len (tm->registrations); i++)
+ {
+ vlib_node_main_t *nm, *nm_clone;
+ vlib_buffer_main_t *bm_clone;
+ vlib_buffer_free_list_t *fl_clone, *fl_orig;
+ vlib_buffer_free_list_t *orig_freelist_pool;
+ int k;
+
+ tr = tm->registrations[i];
+
+ if (tr->count == 0)
+ continue;
+
+ for (k = 0; k < tr->count; k++)
+ {
+ vec_add2 (vlib_worker_threads, w, 1);
+ if (tr->mheap_size)
+ w->thread_mheap =
+ mheap_alloc (0 /* use VM */ , tr->mheap_size);
+ else
+ w->thread_mheap = main_heap;
+ w->thread_stack = vlib_thread_stacks[w - vlib_worker_threads];
+ w->thread_function = tr->function;
+ w->thread_function_arg = w;
+ w->instance_id = k;
+ w->registration = tr;
+
+ 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);
+
+ if (tr->no_data_structure_clone)
+ continue;
+
+ /* Allocate "to-worker-N" frame queue */
+ if (tr->frame_queue_nelts)
+ {
+ fq = vlib_frame_queue_alloc (tr->frame_queue_nelts);
+ }
+ else
+ {
+ fq = vlib_frame_queue_alloc (FRAME_QUEUE_NELTS);
+ }
+
+ vec_validate (vlib_frame_queues, worker_thread_index);
+ vlib_frame_queues[worker_thread_index] = fq;
+
+ /* Fork vlib_global_main et al. Look for bugs here */
+ oldheap = clib_mem_set_heap (w->thread_mheap);
+
+ vm_clone = clib_mem_alloc (sizeof (*vm_clone));
+ clib_memcpy (vm_clone, vlib_mains[0], sizeof (*vm_clone));
+
+ vm_clone->cpu_index = worker_thread_index;
+ vm_clone->heap_base = w->thread_mheap;
+ vm_clone->mbuf_alloc_list = 0;
+ memset (&vm_clone->random_buffer, 0,
+ sizeof (vm_clone->random_buffer));
+
+ nm = &vlib_mains[0]->node_main;
+ nm_clone = &vm_clone->node_main;
+ /* fork next frames array, preserving node runtime indices */
+ nm_clone->next_frames = vec_dup (nm->next_frames);
+ for (j = 0; j < vec_len (nm_clone->next_frames); j++)
+ {
+ vlib_next_frame_t *nf = &nm_clone->next_frames[j];
+ u32 save_node_runtime_index;
+ u32 save_flags;
+
+ save_node_runtime_index = nf->node_runtime_index;
+ save_flags = nf->flags & VLIB_FRAME_NO_FREE_AFTER_DISPATCH;
+ vlib_next_frame_init (nf);
+ nf->node_runtime_index = save_node_runtime_index;
+ nf->flags = save_flags;
+ }
+
+ /* fork the frame dispatch queue */
+ nm_clone->pending_frames = 0;
+ vec_validate (nm_clone->pending_frames, 10); /* $$$$$?????? */
+ _vec_len (nm_clone->pending_frames) = 0;
+
+ /* fork nodes */
+ nm_clone->nodes = 0;
+ for (j = 0; j < vec_len (nm->nodes); j++)
+ {
+ vlib_node_t *n;
+ n = clib_mem_alloc_no_fail (sizeof (*n));
+ clib_memcpy (n, nm->nodes[j], sizeof (*n));
+ /* none of the copied nodes have enqueue rights given out */
+ n->owner_node_index = VLIB_INVALID_NODE_INDEX;
+ memset (&n->stats_total, 0, sizeof (n->stats_total));
+ memset (&n->stats_last_clear, 0,
+ sizeof (n->stats_last_clear));
+ vec_add1 (nm_clone->nodes, n);
+ }
+ nm_clone->nodes_by_type[VLIB_NODE_TYPE_INTERNAL] =
+ vec_dup (nm->nodes_by_type[VLIB_NODE_TYPE_INTERNAL]);
+
+ nm_clone->nodes_by_type[VLIB_NODE_TYPE_INPUT] =
+ vec_dup (nm->nodes_by_type[VLIB_NODE_TYPE_INPUT]);
+ vec_foreach (rt, nm_clone->nodes_by_type[VLIB_NODE_TYPE_INPUT])
+ rt->cpu_index = vm_clone->cpu_index;
+
+ nm_clone->processes = vec_dup (nm->processes);
+
+ /* zap the (per worker) frame freelists, etc */
+ nm_clone->frame_sizes = 0;
+ nm_clone->frame_size_hash = 0;
+
+ /* Packet trace buffers are guaranteed to be empty, nothing to do here */
+
+ clib_mem_set_heap (oldheap);
+ vec_add1 (vlib_mains, vm_clone);
+
+ vm_clone->error_main.counters =
+ vec_dup (vlib_mains[0]->error_main.counters);
+ vm_clone->error_main.counters_last_clear =
+ vec_dup (vlib_mains[0]->error_main.counters_last_clear);
+
+ /* Fork the vlib_buffer_main_t free lists, etc. */
+ bm_clone = vec_dup (vm_clone->buffer_main);
+ vm_clone->buffer_main = bm_clone;
+
+ orig_freelist_pool = bm_clone->buffer_free_list_pool;
+ bm_clone->buffer_free_list_pool = 0;
+
+ /* *INDENT-OFF* */
pool_foreach (fl_orig, orig_freelist_pool,
({
- pool_get_aligned (bm_clone->buffer_free_list_pool,
+ pool_get_aligned (bm_clone->buffer_free_list_pool,
fl_clone, CLIB_CACHE_LINE_BYTES);
- ASSERT (fl_orig - orig_freelist_pool
+ ASSERT (fl_orig - orig_freelist_pool
== fl_clone - bm_clone->buffer_free_list_pool);
fl_clone[0] = fl_orig[0];
fl_clone->unaligned_buffers = 0;
fl_clone->n_alloc = 0;
}));
+/* *INDENT-ON* */
- worker_thread_index++;
- }
- }
+ worker_thread_index++;
+ }
+ }
}
else
{
/* only have non-data-structure copy threads to create... */
- for (i = 0; i < vec_len(tm->registrations); i++)
- {
- tr = tm->registrations[i];
-
- for (j = 0; j < tr->count; j++)
- {
- vec_add2 (vlib_worker_threads, w, 1);
- w->thread_mheap = mheap_alloc (0 /* use VM */, tr->mheap_size);
- w->thread_stack = vlib_thread_stacks[w - vlib_worker_threads];
- w->thread_function = tr->function;
- w->thread_function_arg = w;
- w->instance_id = j;
- w->elog_track.name = (char *) format (0, "thread %d", i+1);
- w->registration = tr;
- vec_add1 (w->elog_track.name, 0);
- elog_track_register (&vm->elog_main, &w->elog_track);
- }
- }
+ for (i = 0; i < vec_len (tm->registrations); i++)
+ {
+ tr = tm->registrations[i];
+
+ for (j = 0; j < tr->count; j++)
+ {
+ vec_add2 (vlib_worker_threads, w, 1);
+ if (tr->mheap_size)
+ w->thread_mheap =
+ mheap_alloc (0 /* use VM */ , tr->mheap_size);
+ else
+ w->thread_mheap = main_heap;
+ w->thread_stack = vlib_thread_stacks[w - vlib_worker_threads];
+ w->thread_function = tr->function;
+ w->thread_function_arg = w;
+ w->instance_id = j;
+ w->elog_track.name =
+ (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);
+ }
+ }
}
worker_thread_index = 1;
tr = tm->registrations[i];
if (tr->use_pthreads || tm->use_pthreads)
- {
- for (j = 0; j < tr->count; j++)
- {
- w = vlib_worker_threads + worker_thread_index++;
- if (vlib_launch_thread (vlib_worker_thread_bootstrap_fn, w, 0) < 0)
- clib_warning ("Couldn't start '%s' pthread ", tr->name);
- }
- }
+ {
+ for (j = 0; j < tr->count; j++)
+ {
+ w = vlib_worker_threads + worker_thread_index++;
+ if (vlib_launch_thread (vlib_worker_thread_bootstrap_fn, w, 0) <
+ 0)
+ clib_warning ("Couldn't start '%s' pthread ", tr->name);
+ }
+ }
else
- {
- uword c;
+ {
+ uword c;
+ /* *INDENT-OFF* */
clib_bitmap_foreach (c, tr->coremask, ({
w = vlib_worker_threads + worker_thread_index++;
if (vlib_launch_thread (vlib_worker_thread_bootstrap_fn, w, c) < 0)
clib_warning ("Couldn't start DPDK lcore %d", c);
}));
- }
+/* *INDENT-ON* */
+ }
}
- vlib_worker_thread_barrier_sync(vm);
- vlib_worker_thread_barrier_release(vm);
+ vlib_worker_thread_barrier_sync (vm);
+ vlib_worker_thread_barrier_release (vm);
return 0;
}
VLIB_MAIN_LOOP_ENTER_FUNCTION (start_workers);
-void vlib_worker_thread_node_runtime_update(void)
+void
+vlib_worker_thread_node_runtime_update (void)
{
int i, j;
vlib_worker_thread_t *w;
vlib_main_t *vm;
vlib_node_main_t *nm, *nm_clone;
- vlib_node_t ** old_nodes_clone;
+ vlib_node_t **old_nodes_clone;
vlib_main_t *vm_clone;
- vlib_node_runtime_t * rt, * old_rt;
+ vlib_node_runtime_t *rt, *old_rt;
void *oldheap;
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 (os_get_cpu_number() == 0);
+ vlib_node_runtime_t * r,
+ uword n_calls,
+ uword n_vectors, uword n_clocks);
+
+ ASSERT (os_get_cpu_number () == 0);
if (vec_len (vlib_mains) == 0)
return;
vm = vlib_mains[0];
nm = &vm->node_main;
- ASSERT (os_get_cpu_number() == 0);
+ ASSERT (os_get_cpu_number () == 0);
ASSERT (*vlib_worker_threads->wait_at_barrier == 1);
- /*
+ /*
* Scrape all runtime stats, so we don't lose node runtime(s) with
* pending counts, or throw away worker / io thread counts.
*/
- for (j = 0; j < vec_len (nm->nodes); j++)
+ for (j = 0; j < vec_len (nm->nodes); j++)
{
- vlib_node_t * n;
+ vlib_node_t *n;
n = nm->nodes[j];
vlib_node_sync_stats (vm, n);
}
for (i = 1; i < vec_len (vlib_mains); i++)
{
- vlib_node_t * n;
-
+ vlib_node_t *n;
+
vm_clone = vlib_mains[i];
nm_clone = &vm_clone->node_main;
- for (j = 0; j < vec_len (nm_clone->nodes); j++)
- {
- n = nm_clone->nodes[j];
+ for (j = 0; j < vec_len (nm_clone->nodes); j++)
+ {
+ n = nm_clone->nodes[j];
- rt = vlib_node_get_runtime (vm_clone, n->index);
- vlib_node_runtime_sync_stats (vm_clone, rt, 0, 0, 0);
- }
+ rt = vlib_node_get_runtime (vm_clone, n->index);
+ vlib_node_runtime_sync_stats (vm_clone, rt, 0, 0, 0);
+ }
}
for (i = 1; i < vec_len (vlib_mains); i++)
{
- vlib_node_runtime_t * rt;
+ vlib_node_runtime_t *rt;
w = vlib_worker_threads + i;
oldheap = clib_mem_set_heap (w->thread_mheap);
vm_clone = vlib_mains[i];
/* Re-clone error heap */
- u64 * old_counters = vm_clone->error_main.counters;
- u64 * old_counters_all_clear = vm_clone->error_main.counters_last_clear;
- memcpy (&vm_clone->error_main, &vm->error_main, sizeof (vm->error_main));
- j = vec_len(vm->error_main.counters) - 1;
- vec_validate_aligned(old_counters, j, CLIB_CACHE_LINE_BYTES);
- vec_validate_aligned(old_counters_all_clear, j, CLIB_CACHE_LINE_BYTES);
+ u64 *old_counters = vm_clone->error_main.counters;
+ u64 *old_counters_all_clear = vm_clone->error_main.counters_last_clear;
+ clib_memcpy (&vm_clone->error_main, &vm->error_main,
+ sizeof (vm->error_main));
+ j = vec_len (vm->error_main.counters) - 1;
+ vec_validate_aligned (old_counters, j, CLIB_CACHE_LINE_BYTES);
+ vec_validate_aligned (old_counters_all_clear, j, CLIB_CACHE_LINE_BYTES);
vm_clone->error_main.counters = old_counters;
vm_clone->error_main.counters_last_clear = old_counters_all_clear;
nm_clone->next_frames = vec_dup (nm->next_frames);
for (j = 0; j < vec_len (nm_clone->next_frames); j++)
- {
- vlib_next_frame_t *nf = &nm_clone->next_frames[j];
- u32 save_node_runtime_index;
-
- save_node_runtime_index = nf->node_runtime_index;
- vlib_next_frame_init (nf);
- nf->node_runtime_index = save_node_runtime_index;
- }
+ {
+ vlib_next_frame_t *nf = &nm_clone->next_frames[j];
+ u32 save_node_runtime_index;
+ u32 save_flags;
+
+ save_node_runtime_index = nf->node_runtime_index;
+ save_flags = nf->flags & VLIB_FRAME_NO_FREE_AFTER_DISPATCH;
+ vlib_next_frame_init (nf);
+ nf->node_runtime_index = save_node_runtime_index;
+ nf->flags = save_flags;
+ }
old_nodes_clone = nm_clone->nodes;
nm_clone->nodes = 0;
/* re-fork nodes */
- for (j = 0; j < vec_len (nm->nodes); j++) {
- vlib_node_t *old_n_clone;
- vlib_node_t *new_n, *new_n_clone;
-
- new_n = nm->nodes[j];
- old_n_clone = old_nodes_clone[j];
-
- new_n_clone = clib_mem_alloc_no_fail (sizeof(*new_n_clone));
- memcpy (new_n_clone, new_n, sizeof (*new_n));
- /* none of the copied nodes have enqueue rights given out */
- new_n_clone->owner_node_index = VLIB_INVALID_NODE_INDEX;
-
- if (j >= vec_len (old_nodes_clone))
- {
- /* new node, set to zero */
- memset (&new_n_clone->stats_total, 0,
- sizeof (new_n_clone->stats_total));
- memset (&new_n_clone->stats_last_clear, 0,
- sizeof (new_n_clone->stats_last_clear));
- }
- else
- {
- /* Copy stats if the old data is valid */
- memcpy (&new_n_clone->stats_total,
- &old_n_clone->stats_total,
- sizeof (new_n_clone->stats_total));
- memcpy (&new_n_clone->stats_last_clear,
- &old_n_clone->stats_last_clear,
- sizeof (new_n_clone->stats_last_clear));
-
- /* keep previous node state */
- new_n_clone->state = old_n_clone->state;
- }
- vec_add1 (nm_clone->nodes, new_n_clone);
- }
+ for (j = 0; j < vec_len (nm->nodes); j++)
+ {
+ vlib_node_t *old_n_clone;
+ vlib_node_t *new_n, *new_n_clone;
+
+ new_n = nm->nodes[j];
+ old_n_clone = old_nodes_clone[j];
+
+ new_n_clone = clib_mem_alloc_no_fail (sizeof (*new_n_clone));
+ clib_memcpy (new_n_clone, new_n, sizeof (*new_n));
+ /* none of the copied nodes have enqueue rights given out */
+ new_n_clone->owner_node_index = VLIB_INVALID_NODE_INDEX;
+
+ if (j >= vec_len (old_nodes_clone))
+ {
+ /* new node, set to zero */
+ memset (&new_n_clone->stats_total, 0,
+ sizeof (new_n_clone->stats_total));
+ memset (&new_n_clone->stats_last_clear, 0,
+ sizeof (new_n_clone->stats_last_clear));
+ }
+ else
+ {
+ /* Copy stats if the old data is valid */
+ clib_memcpy (&new_n_clone->stats_total,
+ &old_n_clone->stats_total,
+ sizeof (new_n_clone->stats_total));
+ clib_memcpy (&new_n_clone->stats_last_clear,
+ &old_n_clone->stats_last_clear,
+ sizeof (new_n_clone->stats_last_clear));
+
+ /* keep previous node state */
+ new_n_clone->state = old_n_clone->state;
+ }
+ vec_add1 (nm_clone->nodes, new_n_clone);
+ }
/* Free the old node clone */
- for (j = 0; j < vec_len(old_nodes_clone); j++)
- clib_mem_free (old_nodes_clone[j]);
+ for (j = 0; j < vec_len (old_nodes_clone); j++)
+ clib_mem_free (old_nodes_clone[j]);
vec_free (old_nodes_clone);
-
+
vec_free (nm_clone->nodes_by_type[VLIB_NODE_TYPE_INTERNAL]);
nm_clone->nodes_by_type[VLIB_NODE_TYPE_INTERNAL] =
- vec_dup (nm->nodes_by_type[VLIB_NODE_TYPE_INTERNAL]);
+ vec_dup (nm->nodes_by_type[VLIB_NODE_TYPE_INTERNAL]);
/* clone input node runtime */
old_rt = nm_clone->nodes_by_type[VLIB_NODE_TYPE_INPUT];
nm_clone->nodes_by_type[VLIB_NODE_TYPE_INPUT] =
- vec_dup (nm->nodes_by_type[VLIB_NODE_TYPE_INPUT]);
+ vec_dup (nm->nodes_by_type[VLIB_NODE_TYPE_INPUT]);
- vec_foreach(rt, nm_clone->nodes_by_type[VLIB_NODE_TYPE_INPUT])
- {
- rt->cpu_index = vm_clone->cpu_index;
- }
+ vec_foreach (rt, nm_clone->nodes_by_type[VLIB_NODE_TYPE_INPUT])
+ {
+ rt->cpu_index = vm_clone->cpu_index;
+ }
- for (j=0; j < vec_len(old_rt); j++)
- {
- rt = vlib_node_get_runtime (vm_clone, old_rt[j].node_index);
- rt->state = old_rt[j].state;
- }
+ for (j = 0; j < vec_len (old_rt); j++)
+ {
+ rt = vlib_node_get_runtime (vm_clone, old_rt[j].node_index);
+ rt->state = old_rt[j].state;
+ }
- vec_free(old_rt);
+ vec_free (old_rt);
nm_clone->processes = vec_dup (nm->processes);
}
}
+u32
+unformat_sched_policy (unformat_input_t * input, va_list * args)
+{
+ u32 *r = va_arg (*args, u32 *);
+
+ if (0);
+#define _(v,f,s) else if (unformat (input, s)) *r = SCHED_POLICY_##f;
+ foreach_sched_policy
+#undef _
+ else
+ return 0;
+ return 1;
+}
+
static clib_error_t *
cpu_config (vlib_main_t * vm, unformat_input_t * input)
{
vlib_thread_registration_t *tr;
- uword * p;
- vlib_thread_main_t * tm = &vlib_thread_main;
- u8 * name;
+ uword *p;
+ vlib_thread_main_t *tm = &vlib_thread_main;
+ u8 *name;
u64 coremask;
- uword * bitmap;
+ uword *bitmap;
u32 count;
tm->thread_registrations_by_name = hash_create_string (0, sizeof (uword));
- tm->n_thread_stacks = 1; /* account for main thread */
+
+ tm->n_thread_stacks = 1; /* account for main thread */
+ tm->sched_policy = ~0;
+ tm->sched_priority = ~0;
tr = tm->next;
while (tr)
{
- hash_set_mem (tm->thread_registrations_by_name, tr->name, (uword)tr);
+ hash_set_mem (tm->thread_registrations_by_name, tr->name, (uword) tr);
tr = tr->next;
}
- while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
- if (unformat (input, "main-thread-io"))
- tm->main_thread_is_io_node = 1;
- else if (unformat (input, "use-pthreads"))
- tm->use_pthreads = 1;
+ if (unformat (input, "use-pthreads"))
+ tm->use_pthreads = 1;
else if (unformat (input, "thread-prefix %v", &tm->thread_prefix))
- ;
+ ;
else if (unformat (input, "main-core %u", &tm->main_lcore))
- ;
+ ;
else if (unformat (input, "skip-cores %u", &tm->skip_cores))
- ;
+ ;
else if (unformat (input, "coremask-%s %llx", &name, &coremask))
- {
- p = hash_get_mem (tm->thread_registrations_by_name, name);
- if (p == 0)
- return clib_error_return (0, "no such thread type '%s'", name);
-
- tr = (vlib_thread_registration_t *)p[0];
-
- if (tr->use_pthreads)
- return clib_error_return (0, "coremask cannot be set for '%s' threads",
- name);
-
- tr->coremask = clib_bitmap_set_multiple
- (tr->coremask, 0, coremask, BITS(coremask));
- tr->count = clib_bitmap_count_set_bits (tr->coremask);
- }
+ {
+ p = hash_get_mem (tm->thread_registrations_by_name, name);
+ if (p == 0)
+ return clib_error_return (0, "no such thread type '%s'", name);
+
+ tr = (vlib_thread_registration_t *) p[0];
+
+ if (tr->use_pthreads)
+ return clib_error_return (0,
+ "coremask cannot be set for '%s' threads",
+ name);
+
+ tr->coremask = clib_bitmap_set_multiple
+ (tr->coremask, 0, coremask, BITS (coremask));
+ tr->count = clib_bitmap_count_set_bits (tr->coremask);
+ }
else if (unformat (input, "corelist-%s %U", &name, unformat_bitmap_list,
- &bitmap))
- {
- p = hash_get_mem (tm->thread_registrations_by_name, name);
- if (p == 0)
- return clib_error_return (0, "no such thread type '%s'", name);
-
- tr = (vlib_thread_registration_t *)p[0];
-
- if (tr->use_pthreads)
- return clib_error_return (0, "corelist cannot be set for '%s' threads",
- name);
-
- tr->coremask = bitmap;
- tr->count = clib_bitmap_count_set_bits (tr->coremask);
- }
+ &bitmap))
+ {
+ p = hash_get_mem (tm->thread_registrations_by_name, name);
+ if (p == 0)
+ return clib_error_return (0, "no such thread type '%s'", name);
+
+ tr = (vlib_thread_registration_t *) p[0];
+
+ if (tr->use_pthreads)
+ return clib_error_return (0,
+ "corelist cannot be set for '%s' threads",
+ name);
+
+ tr->coremask = bitmap;
+ tr->count = clib_bitmap_count_set_bits (tr->coremask);
+ }
+ else
+ if (unformat
+ (input, "scheduler-policy %U", unformat_sched_policy,
+ &tm->sched_policy))
+ ;
+ else if (unformat (input, "scheduler-priority %u", &tm->sched_priority))
+ ;
else if (unformat (input, "%s %u", &name, &count))
- {
- p = hash_get_mem (tm->thread_registrations_by_name, name);
- if (p == 0)
- return clib_error_return (0, "no such thread type '%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);
- tr->count = count;
- }
- else
- break;
+ {
+ p = hash_get_mem (tm->thread_registrations_by_name, name);
+ if (p == 0)
+ 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);
+ tr->count = count;
+ }
+ else
+ break;
}
+ if (tm->sched_priority != ~0)
+ {
+ if (tm->sched_policy == SCHED_FIFO || tm->sched_policy == SCHED_RR)
+ {
+ u32 prio_max = sched_get_priority_max (tm->sched_policy);
+ u32 prio_min = sched_get_priority_min (tm->sched_policy);
+ if (tm->sched_priority > prio_max)
+ tm->sched_priority = prio_max;
+ if (tm->sched_priority < prio_min)
+ tm->sched_priority = prio_min;
+ }
+ else
+ {
+ return clib_error_return
+ (0,
+ "scheduling priority (%d) is not allowed for `normal` scheduling policy",
+ tm->sched_priority);
+ }
+ }
tr = tm->next;
if (!tm->thread_prefix)
- tm->thread_prefix = format(0, "vpp");
+ tm->thread_prefix = format (0, "vpp");
while (tr)
{
VLIB_EARLY_CONFIG_FUNCTION (cpu_config, "cpu");
-#if !defined (__x86_64__)
-void __sync_fetch_and_add_8 (void)
+#if !defined (__x86_64__) && !defined (__aarch64__) && !defined (__powerpc64__) && !defined(__arm__)
+void
+__sync_fetch_and_add_8 (void)
{
- fformat(stderr, "%s called\n", __FUNCTION__);
- abort();
+ fformat (stderr, "%s called\n", __FUNCTION__);
+ abort ();
}
-void __sync_add_and_fetch_8 (void)
+
+void
+__sync_add_and_fetch_8 (void)
{
- fformat(stderr, "%s called\n", __FUNCTION__);
- abort();
+ fformat (stderr, "%s called\n", __FUNCTION__);
+ abort ();
}
#endif
void vnet_main_fixup (vlib_fork_fixup_t which) __attribute__ ((weak));
-void vnet_main_fixup (vlib_fork_fixup_t which) { }
+void
+vnet_main_fixup (vlib_fork_fixup_t which)
+{
+}
-void vlib_worker_thread_fork_fixup (vlib_fork_fixup_t which)
+void
+vlib_worker_thread_fork_fixup (vlib_fork_fixup_t which)
{
- vlib_main_t * vm = vlib_get_main();
+ vlib_main_t *vm = vlib_get_main ();
if (vlib_mains == 0)
return;
- ASSERT(os_get_cpu_number() == 0);
- vlib_worker_thread_barrier_sync(vm);
+ ASSERT (os_get_cpu_number () == 0);
+ vlib_worker_thread_barrier_sync (vm);
switch (which)
{
break;
default:
- ASSERT(0);
+ ASSERT (0);
}
- vlib_worker_thread_barrier_release(vm);
+ vlib_worker_thread_barrier_release (vm);
}
-void vlib_worker_thread_barrier_sync(vlib_main_t *vm)
+void
+vlib_worker_thread_barrier_sync (vlib_main_t * vm)
{
f64 deadline;
u32 count;
-
+
if (!vlib_mains)
- return;
+ return;
count = vec_len (vlib_mains) - 1;
/* Tolerate recursive calls */
if (++vlib_worker_threads[0].recursion_level > 1)
- return;
+ return;
- ASSERT (os_get_cpu_number() == 0);
+ vlib_worker_threads[0].barrier_sync_count++;
+
+ ASSERT (os_get_cpu_number () == 0);
deadline = vlib_time_now (vm) + BARRIER_SYNC_TIMEOUT;
*vlib_worker_threads->wait_at_barrier = 1;
while (*vlib_worker_threads->workers_at_barrier != count)
{
- if (vlib_time_now(vm) > deadline)
- {
- fformat(stderr, "%s: worker thread deadlock\n", __FUNCTION__);
- os_panic();
- }
+ if (vlib_time_now (vm) > deadline)
+ {
+ fformat (stderr, "%s: worker thread deadlock\n", __FUNCTION__);
+ os_panic ();
+ }
}
}
-void vlib_worker_thread_barrier_release(vlib_main_t * vm)
+void
+vlib_worker_thread_barrier_release (vlib_main_t * vm)
{
f64 deadline;
if (!vlib_mains)
- return;
+ return;
if (--vlib_worker_threads[0].recursion_level > 0)
return;
while (*vlib_worker_threads->workers_at_barrier > 0)
{
- if (vlib_time_now(vm) > deadline)
- {
- fformat(stderr, "%s: worker thread deadlock\n", __FUNCTION__);
- os_panic();
- }
+ if (vlib_time_now (vm) > deadline)
+ {
+ fformat (stderr, "%s: worker thread deadlock\n", __FUNCTION__);
+ os_panic ();
+ }
}
}
-static clib_error_t *
-show_threads_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+/*
+ * 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.
+ */
+static inline int
+vlib_frame_queue_dequeue_internal (vlib_main_t * vm)
{
- vlib_worker_thread_t * w;
- int i;
+ u32 thread_id = vm->cpu_index;
+ vlib_frame_queue_t *fq = 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;
+ vlib_thread_main_t *tm = vlib_get_thread_main ();
- vlib_cli_output (vm, "%-7s%-20s%-12s%-8s%-7s%-7s%-7s%-10s",
- "ID", "Name", "Type", "LWP",
- "lcore", "Core", "Socket", "State");
+ ASSERT (fq);
+ ASSERT (vm == vlib_mains[thread_id]);
- for (i = 0; i < vec_len(vlib_worker_threads); i++)
+ if (PREDICT_FALSE (tm->handoff_dispatch_node_index == ~0))
+ return 0;
+ /*
+ * Gather trace data for frame queues
+ */
+ if (PREDICT_FALSE (fq->trace))
{
- w = vlib_worker_threads + i;
- u8 * line = NULL;
-
- line = format(line, "%-7d%-20s%-12s%-8d",
- i,
- w->name ? w->name : (u8 *) "",
- w->registration ? w->registration->name : "",
- w->lwp);
-
- int lcore = w->dpdk_lcore_id;
- if (lcore > -1)
- {
- line = format(line, "%-7u%-7u%-7u",
- lcore,
- lcore_config[lcore].core_id,
- lcore_config[lcore].socket_id);
-
- switch(lcore_config[lcore].state)
- {
- case WAIT:
- line = format(line, "wait");
- break;
- case RUNNING:
- line = format(line, "running");
- break;
- case FINISHED:
- line = format(line, "finished");
- break;
- default:
- line = format(line, "unknown");
- }
- }
-
- vlib_cli_output(vm, "%v", line);
- vec_free(line);
+ frame_queue_trace_t *fqt;
+ frame_queue_nelt_counter_t *fqh;
+ u32 elix;
+
+ fqt = &tm->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 = &tm->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;
}
- return 0;
+ while (1)
+ {
+ 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, tm->handoff_dispatch_node_index);
+
+ to = vlib_frame_vector_args (f);
+
+ n_left_to_node = elt->n_vectors;
+
+ 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;
+ }
+
+ while (n_left_to_node > 0)
+ {
+ to[0] = from[0];
+ to++;
+ from++;
+ n_left_to_node--;
+ }
+
+ vectors += elt->n_vectors;
+ f->n_vectors = elt->n_vectors;
+ vlib_put_frame_to_node (vm, tm->handoff_dispatch_node_index, f);
+
+ elt->valid = 0;
+ elt->n_vectors = 0;
+ elt->msg_type = 0xfefefefe;
+ CLIB_MEMORY_BARRIER ();
+ fq->head++;
+ processed++;
+
+ /*
+ * Limit the number of packets pushed into the graph
+ */
+ if (vectors >= fq->vector_threshold)
+ {
+ fq->head_hint = fq->head;
+ return processed;
+ }
+ }
+ ASSERT (0);
+ return processed;
}
+static_always_inline void
+vlib_worker_thread_internal (vlib_main_t * vm)
+{
+ vlib_node_main_t *nm = &vm->node_main;
+ u64 cpu_time_now = clib_cpu_time_now ();
+
+ vec_alloc (nm->pending_interrupt_node_runtime_indices, 32);
+
+ while (1)
+ {
+ vlib_worker_thread_barrier_check ();
+
+ vlib_frame_queue_dequeue_internal (vm);
-VLIB_CLI_COMMAND (show_threads_command, static) = {
- .path = "show threads",
- .short_help = "Show threads",
- .function = show_threads_fn,
+ vlib_node_runtime_t *n;
+ vec_foreach (n, nm->nodes_by_type[VLIB_NODE_TYPE_INPUT])
+ {
+ cpu_time_now = dispatch_node (vm, n, VLIB_NODE_TYPE_INPUT,
+ VLIB_NODE_STATE_POLLING, /* frame */ 0,
+ cpu_time_now);
+ }
+
+ /* Next handle interrupts. */
+ {
+ uword l = _vec_len (nm->pending_interrupt_node_runtime_indices);
+ uword i;
+ if (l > 0)
+ {
+ _vec_len (nm->pending_interrupt_node_runtime_indices) = 0;
+ for (i = 0; i < l; i++)
+ {
+ n = vec_elt_at_index (nm->nodes_by_type[VLIB_NODE_TYPE_INPUT],
+ nm->
+ pending_interrupt_node_runtime_indices
+ [i]);
+ cpu_time_now =
+ dispatch_node (vm, n, VLIB_NODE_TYPE_INPUT,
+ VLIB_NODE_STATE_INTERRUPT,
+ /* frame */ 0,
+ cpu_time_now);
+ }
+ }
+ }
+
+ if (_vec_len (nm->pending_frames))
+ {
+ int i;
+ cpu_time_now = clib_cpu_time_now ();
+ for (i = 0; i < _vec_len (nm->pending_frames); i++)
+ {
+ vlib_pending_frame_t *p;
+
+ p = nm->pending_frames + i;
+
+ cpu_time_now = dispatch_pending_node (vm, p, cpu_time_now);
+ }
+ _vec_len (nm->pending_frames) = 0;
+ }
+ vlib_increment_main_loop_counter (vm);
+
+ /* Record time stamp in case there are no enabled nodes and above
+ calls do not update time stamp. */
+ cpu_time_now = clib_cpu_time_now ();
+ }
+}
+
+void
+vlib_worker_thread_fn (void *arg)
+{
+ 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 ();
+
+ ASSERT (vm->cpu_index == os_get_cpu_number ());
+
+ vlib_worker_thread_init (w);
+ clib_time_init (&vm->clib_time);
+ clib_mem_set_heap (w->thread_mheap);
+
+ /* Wait until the dpdk init sequence is complete */
+ while (tm->worker_thread_release == 0)
+ vlib_worker_thread_barrier_check ();
+
+ vlib_worker_thread_internal (vm);
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_THREAD (worker_thread_reg, static) = {
+ .name = "workers",
+ .short_name = "wk",
+ .function = vlib_worker_thread_fn,
};
+/* *INDENT-ON* */
+
+clib_error_t *
+threads_init (vlib_main_t * vm)
+{
+ vlib_thread_main_t *tm = vlib_get_thread_main ();
+
+ tm->handoff_dispatch_node_index = ~0;
+
+ return 0;
+}
+
+VLIB_INIT_FUNCTION (threads_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / blobdiff