#include <vlib/threads.h>
#include <vlib/unix/cj.h>
-
-#if DPDK==1
-#include <rte_config.h>
-#include <rte_common.h>
-#include <rte_eal.h>
-#include <rte_launch.h>
-#include <rte_lcore.h>
-#endif
DECLARE_CJ_GLOBAL_LOG;
#define FRAME_QUEUE_NELTS 32
-
-#if DPDK==1
-/*
- * 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 ();
-#endif
u32
vl (void *p)
{
vlib_worker_thread_t *vlib_worker_threads;
vlib_thread_main_t vlib_thread_main;
+__thread uword vlib_thread_index = 0;
+
uword
os_get_cpu_number (void)
{
- void *sp;
- uword n;
- u32 len;
-
- len = vec_len (vlib_thread_stacks);
- if (len == 0)
- return 0;
-
- /* Get any old stack address. */
- sp = &sp;
-
- 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;
+ return vlib_thread_index;
}
uword
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
+ if (tm->cb.vlib_thread_set_lcore_cb)
+ {
+ tm->cb.vlib_thread_set_lcore_cb (0, tm->main_lcore);
+ }
+ else
+ {
+ cpu_set_t cpuset;
+ CPU_ZERO (&cpuset);
+ CPU_SET (tm->main_lcore, &cpuset);
+ pthread_setaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset);
+ }
/* as many threads as stacks... */
vec_validate_aligned (vlib_worker_threads, vec_len (vlib_thread_stacks) - 1,
return 0;
}
-vlib_worker_thread_t *
-vlib_alloc_thread (vlib_main_t * vm)
-{
- vlib_worker_thread_t *w;
-
- if (vec_len (vlib_worker_threads) >= vec_len (vlib_thread_stacks))
- {
- clib_warning ("out of worker threads... Quitting...");
- 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)
{
f64 b4 = vlib_time_now_ticks (vm, before);
vlib_worker_thread_barrier_check (vm, b4);
/* Bad idea. Dequeue -> enqueue -> dequeue -> trouble */
- // vlib_frame_queue_dequeue (vm->cpu_index, vm, nm);
+ // vlib_frame_queue_dequeue (vm->thread_index, vm, nm);
}
elt = fq->elts + (new_tail & (fq->nelts - 1));
w->lwp = syscall (SYS_gettid);
w->thread_id = pthread_self ();
+ vlib_thread_index = w - vlib_worker_threads;
+
rv = (void *) clib_calljmp
((uword (*)(uword)) w->thread_function,
(uword) arg, w->thread_stack + VLIB_THREAD_STACK_SIZE);
return rv;
}
-static int
-vlib_launch_thread (void *fp, vlib_worker_thread_t * w, unsigned lcore_id)
+static clib_error_t *
+vlib_launch_thread_int (void *fp, vlib_worker_thread_t * w, unsigned lcore_id)
{
+ vlib_thread_main_t *tm = &vlib_thread_main;
void *(*fp_arg) (void *) = fp;
w->lcore_id = lcore_id;
-#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);
- else
- return -1;
+ if (tm->cb.vlib_launch_thread_cb && !w->registration->use_pthreads)
+ return tm->cb.vlib_launch_thread_cb (fp, (void *) w, lcore_id);
else
-#endif
{
- 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;
+ if (pthread_create (&worker, NULL /* attr */ , fp_arg, (void *) w))
+ return clib_error_return_unix (0, "pthread_create");
+
+ if (pthread_setaffinity_np (worker, sizeof (cpu_set_t), &cpuset))
+ return clib_error_return_unix (0, "pthread_setaffinity_np");
+
+ return 0;
}
}
if (n_vlib_mains > 1)
{
- vec_validate (vlib_mains, tm->n_vlib_mains - 1);
+ /* Replace hand-crafted length-1 vector with a real vector */
+ vlib_mains = 0;
+
+ vec_validate_aligned (vlib_mains, tm->n_vlib_mains - 1,
+ CLIB_CACHE_LINE_BYTES);
_vec_len (vlib_mains) = 0;
- vec_add1 (vlib_mains, vm);
+ vec_add1_aligned (vlib_mains, vm, CLIB_CACHE_LINE_BYTES);
vlib_worker_threads->wait_at_barrier =
clib_mem_alloc_aligned (sizeof (u32), CLIB_CACHE_LINE_BYTES);
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_stack =
+ vlib_thread_stack_init (w - vlib_worker_threads);
w->thread_function = tr->function;
w->thread_function_arg = w;
w->instance_id = k;
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->thread_index = worker_thread_index;
vm_clone->heap_base = w->thread_mheap;
vm_clone->mbuf_alloc_list = 0;
+ vm_clone->init_functions_called =
+ hash_create (0, /* value bytes */ 0);
memset (&vm_clone->random_buffer, 0,
sizeof (vm_clone->random_buffer));
}
nm_clone->nodes_by_type[VLIB_NODE_TYPE_INTERNAL] =
vec_dup (nm->nodes_by_type[VLIB_NODE_TYPE_INTERNAL]);
+ vec_foreach (rt, nm_clone->nodes_by_type[VLIB_NODE_TYPE_INPUT])
+ {
+ vlib_node_t *n = vlib_get_node (vm, rt->node_index);
+ rt->thread_index = vm_clone->thread_index;
+ /* copy initial runtime_data from node */
+ if (n->runtime_data && n->runtime_data_bytes > 0)
+ clib_memcpy (rt->runtime_data, n->runtime_data,
+ clib_min (VLIB_NODE_RUNTIME_DATA_SIZE,
+ n->runtime_data_bytes));
+ }
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;
+ {
+ vlib_node_t *n = vlib_get_node (vm, rt->node_index);
+ rt->thread_index = vm_clone->thread_index;
+ /* copy initial runtime_data from node */
+ if (n->runtime_data && n->runtime_data_bytes > 0)
+ clib_memcpy (rt->runtime_data, n->runtime_data,
+ clib_min (VLIB_NODE_RUNTIME_DATA_SIZE,
+ n->runtime_data_bytes));
+ }
nm_clone->processes = vec_dup (nm->processes);
/* Packet trace buffers are guaranteed to be empty, nothing to do here */
clib_mem_set_heap (oldheap);
- vec_add1 (vlib_mains, vm_clone);
+ vec_add1_aligned (vlib_mains, vm_clone, CLIB_CACHE_LINE_BYTES);
vm_clone->error_main.counters =
vec_dup (vlib_mains[0]->error_main.counters);
== fl_clone - bm_clone->buffer_free_list_pool);
fl_clone[0] = fl_orig[0];
- fl_clone->aligned_buffers = 0;
- fl_clone->unaligned_buffers = 0;
+ fl_clone->buffers = 0;
fl_clone->n_alloc = 0;
}));
/* *INDENT-ON* */
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_stack =
+ vlib_thread_stack_init (w - vlib_worker_threads);
w->thread_function = tr->function;
w->thread_function_arg = w;
w->instance_id = j;
for (i = 0; i < vec_len (tm->registrations); i++)
{
+ clib_error_t *err;
int j;
tr = tm->registrations[i];
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);
+ err = vlib_launch_thread_int (vlib_worker_thread_bootstrap_fn,
+ w, 0);
+ if (err)
+ clib_error_report (err);
}
}
else
{
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* */
+ /* *INDENT-OFF* */
+ 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_worker_thread_barrier_sync (vm);
uword n_calls,
uword n_vectors, uword n_clocks);
- ASSERT (os_get_cpu_number () == 0);
+ ASSERT (vlib_get_thread_index () == 0);
- if (vec_len (vlib_mains) == 0)
+ if (vec_len (vlib_mains) == 1)
return;
vm = vlib_mains[0];
nm = &vm->node_main;
- ASSERT (os_get_cpu_number () == 0);
+ ASSERT (vlib_get_thread_index () == 0);
ASSERT (*vlib_worker_threads->wait_at_barrier == 1);
/*
clib_mem_free (old_nodes_clone[j]);
vec_free (old_nodes_clone);
- vec_free (nm_clone->nodes_by_type[VLIB_NODE_TYPE_INTERNAL]);
+ /* re-clone internal nodes */
+ old_rt = 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]);
- /* clone input node runtime */
- old_rt = nm_clone->nodes_by_type[VLIB_NODE_TYPE_INPUT];
+ vec_foreach (rt, nm_clone->nodes_by_type[VLIB_NODE_TYPE_INTERNAL])
+ {
+ vlib_node_t *n = vlib_get_node (vm, rt->node_index);
+ rt->thread_index = vm_clone->thread_index;
+ /* copy runtime_data, will be overwritten later for existing rt */
+ if (n->runtime_data && n->runtime_data_bytes > 0)
+ clib_memcpy (rt->runtime_data, n->runtime_data,
+ clib_min (VLIB_NODE_RUNTIME_DATA_SIZE,
+ n->runtime_data_bytes));
+ }
+
+ 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;
+ clib_memcpy (rt->runtime_data, old_rt[j].runtime_data,
+ VLIB_NODE_RUNTIME_DATA_SIZE);
+ }
+
+ vec_free (old_rt);
+ /* re-clone input nodes */
+ 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_foreach (rt, nm_clone->nodes_by_type[VLIB_NODE_TYPE_INPUT])
{
- rt->cpu_index = vm_clone->cpu_index;
+ vlib_node_t *n = vlib_get_node (vm, rt->node_index);
+ rt->thread_index = vm_clone->thread_index;
+ /* copy runtime_data, will be overwritten later for existing rt */
+ if (n->runtime_data && n->runtime_data_bytes > 0)
+ clib_memcpy (rt->runtime_data, n->runtime_data,
+ clib_min (VLIB_NODE_RUNTIME_DATA_SIZE,
+ n->runtime_data_bytes));
}
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;
+ clib_memcpy (rt->runtime_data, old_rt[j].runtime_data,
+ VLIB_NODE_RUNTIME_DATA_SIZE);
}
vec_free (old_rt);
{
tm->n_thread_stacks += tr->count;
tm->n_pthreads += tr->count * tr->use_pthreads;
- tm->n_eal_threads += tr->count * (tr->use_pthreads == 0);
+ tm->n_threads += tr->count * (tr->use_pthreads == 0);
tr = tr->next;
}
if (vlib_mains == 0)
return;
- ASSERT (os_get_cpu_number () == 0);
+ ASSERT (vlib_get_thread_index () == 0);
vlib_worker_thread_barrier_sync (vm);
switch (which)
f64 deadline;
u32 count;
- if (!vlib_mains)
+ if (vec_len (vlib_mains) < 2)
return;
count = vec_len (vlib_mains) - 1;
vlib_worker_threads[0].barrier_sync_count++;
- ASSERT (os_get_cpu_number () == 0);
+ ASSERT (vlib_get_thread_index () == 0);
deadline = vlib_time_now (vm) + BARRIER_SYNC_TIMEOUT;
{
f64 deadline;
- if (!vlib_mains)
+ if (vec_len (vlib_mains) < 2)
return;
if (--vlib_worker_threads[0].recursion_level > 0)
* 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_frame_queue_main_t * fqm)
+int
+vlib_frame_queue_dequeue (vlib_main_t * vm, vlib_frame_queue_main_t * fqm)
{
- u32 thread_id = vm->cpu_index;
+ 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;
return processed;
}
-static_always_inline void
-vlib_worker_thread_internal (vlib_main_t * vm)
-{
- vlib_node_main_t *nm = &vm->node_main;
- vlib_thread_main_t *tm = vlib_get_thread_main ();
- u64 cpu_time_now = clib_cpu_time_now ();
- vlib_frame_queue_main_t *fqm;
-
- vec_alloc (nm->pending_interrupt_node_runtime_indices, 32);
-
- while (1)
- {
- vlib_worker_thread_barrier_check ();
-
- vec_foreach (fqm, tm->frame_queue_mains)
- vlib_frame_queue_dequeue_internal (vm, fqm);
-
- 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 ();
+ clib_error_t *e;
- ASSERT (vm->cpu_index == os_get_cpu_number ());
+ 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);
-#if DPDK > 0
/* Wait until the dpdk init sequence is complete */
- vlib_thread_main_t *tm = vlib_get_thread_main ();
- while (tm->worker_thread_release == 0)
+ while (tm->extern_thread_mgmt && tm->worker_thread_release == 0)
vlib_worker_thread_barrier_check ();
-#endif
- vlib_worker_thread_internal (vm);
+ e = vlib_call_init_exit_functions
+ (vm, vm->worker_init_function_registrations, 1 /* call_once */ );
+ if (e)
+ clib_error_report (e);
+
+ vlib_worker_loop (vm);
}
/* *INDENT-OFF* */
return (fqm - tm->frame_queue_mains);
}
+
+int
+vlib_thread_cb_register (struct vlib_main_t *vm, vlib_thread_callbacks_t * cb)
+{
+ vlib_thread_main_t *tm = vlib_get_thread_main ();
+
+ if (tm->extern_thread_mgmt)
+ return -1;
+
+ tm->cb.vlib_launch_thread_cb = cb->vlib_launch_thread_cb;
+ tm->extern_thread_mgmt = 1;
+ return 0;
+}
+
clib_error_t *
threads_init (vlib_main_t * vm)
{
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