#include <vppinfra/format.h>
#include <vlib/vlib.h>
#include <vlib/threads.h>
+#include <vlib/stats/stats.h>
#include <vppinfra/tw_timer_1t_3w_1024sl_ov.h>
#include <vlib/unix/unix.h>
-#include <vlib/unix/cj.h>
-CJ_GLOBAL_LOG_PROTOTYPE;
-
-/* Actually allocate a few extra slots of vector data to support
- speculative vector enqueues which overflow vector data in next frame. */
-#define VLIB_FRAME_SIZE_ALLOC (VLIB_FRAME_SIZE + 4)
-
-u32 wraps;
-
-always_inline u32
-vlib_frame_bytes (u32 n_scalar_bytes, u32 n_vector_bytes)
-{
- u32 n_bytes;
-
- /* Make room for vlib_frame_t plus scalar arguments. */
- n_bytes = vlib_frame_vector_byte_offset (n_scalar_bytes);
-
- /* Make room for vector arguments.
- Allocate a few extra slots of vector data to support
- speculative vector enqueues which overflow vector data in next frame. */
-#define VLIB_FRAME_SIZE_EXTRA 4
- n_bytes += (VLIB_FRAME_SIZE + VLIB_FRAME_SIZE_EXTRA) * n_vector_bytes;
-
- /* Magic number is first 32bit number after vector data.
- Used to make sure that vector data is never overrun. */
#define VLIB_FRAME_MAGIC (0xabadc0ed)
- n_bytes += sizeof (u32);
-
- /* Pad to cache line. */
- n_bytes = round_pow2 (n_bytes, CLIB_CACHE_LINE_BYTES);
-
- return n_bytes;
-}
always_inline u32 *
vlib_frame_find_magic (vlib_frame_t * f, vlib_node_t * node)
{
- void *p = f;
-
- p += vlib_frame_vector_byte_offset (node->scalar_size);
-
- p += (VLIB_FRAME_SIZE + VLIB_FRAME_SIZE_EXTRA) * node->vector_size;
-
- return p;
-}
-
-static vlib_frame_size_t *
-get_frame_size_info (vlib_node_main_t * nm,
- u32 n_scalar_bytes, u32 n_vector_bytes)
-{
- uword key = (n_scalar_bytes << 16) | n_vector_bytes;
- uword *p, i;
-
- p = hash_get (nm->frame_size_hash, key);
- if (p)
- i = p[0];
- else
- {
- i = vec_len (nm->frame_sizes);
- vec_validate (nm->frame_sizes, i);
- hash_set (nm->frame_size_hash, key, i);
- }
-
- return vec_elt_at_index (nm->frame_sizes, i);
+ return (void *) f + node->magic_offset;
}
-static u32
+static vlib_frame_t *
vlib_frame_alloc_to_node (vlib_main_t * vm, u32 to_node_index,
u32 frame_flags)
{
vlib_frame_size_t *fs;
vlib_node_t *to_node;
vlib_frame_t *f;
- u32 fi, l, n, scalar_size, vector_size;
+ u32 l, n;
+
+ ASSERT (vm == vlib_get_main ());
to_node = vlib_get_node (vm, to_node_index);
- scalar_size = to_node->scalar_size;
- vector_size = to_node->vector_size;
+ vec_validate (nm->frame_sizes, to_node->frame_size_index);
+ fs = vec_elt_at_index (nm->frame_sizes, to_node->frame_size_index);
- fs = get_frame_size_info (nm, scalar_size, vector_size);
- n = vlib_frame_bytes (scalar_size, vector_size);
- if ((l = vec_len (fs->free_frame_indices)) > 0)
+ if (fs->frame_size == 0)
+ fs->frame_size = to_node->frame_size;
+ else
+ ASSERT (fs->frame_size == to_node->frame_size);
+
+ n = fs->frame_size;
+ if ((l = vec_len (fs->free_frames)) > 0)
{
/* Allocate from end of free list. */
- fi = fs->free_frame_indices[l - 1];
- f = vlib_get_frame_no_check (vm, fi);
- _vec_len (fs->free_frame_indices) = l - 1;
+ f = fs->free_frames[l - 1];
+ vec_set_len (fs->free_frames, l - 1);
}
else
{
- f = clib_mem_alloc_aligned_no_fail (n, VLIB_FRAME_ALIGN);
- fi = vlib_frame_index_no_check (vm, f);
+ f = clib_mem_alloc_aligned_no_fail (n, CLIB_CACHE_LINE_BYTES);
}
/* Poison frame when debugging. */
if (CLIB_DEBUG > 0)
- clib_memset (f, 0xfe, n);
+ clib_memset_u8 (f, 0xfe, n);
/* Insert magic number. */
{
f->frame_flags = VLIB_FRAME_IS_ALLOCATED | frame_flags;
f->n_vectors = 0;
- f->scalar_size = scalar_size;
- f->vector_size = vector_size;
+ f->scalar_offset = to_node->scalar_offset;
+ f->vector_offset = to_node->vector_offset;
+ f->aux_offset = to_node->aux_offset;
f->flags = 0;
+ f->frame_size_index = to_node->frame_size_index;
fs->n_alloc_frames += 1;
- return fi;
+ return f;
}
/* Allocate a frame for from FROM_NODE to TO_NODE via TO_NEXT_INDEX.
Returns frame index. */
-static u32
+static vlib_frame_t *
vlib_frame_alloc (vlib_main_t * vm, vlib_node_runtime_t * from_node_runtime,
u32 to_next_index)
{
vlib_frame_t *
vlib_get_frame_to_node (vlib_main_t * vm, u32 to_node_index)
{
- u32 fi = vlib_frame_alloc_to_node (vm, to_node_index,
- /* frame_flags */
- VLIB_FRAME_FREE_AFTER_DISPATCH);
- return vlib_get_frame (vm, fi);
+ vlib_frame_t *f = vlib_frame_alloc_to_node (vm, to_node_index,
+ /* frame_flags */
+ VLIB_FRAME_FREE_AFTER_DISPATCH);
+ return vlib_get_frame (vm, f);
+}
+
+static inline void
+vlib_validate_frame_indices (vlib_frame_t * f)
+{
+ if (CLIB_DEBUG > 0)
+ {
+ int i;
+ u32 *from = vlib_frame_vector_args (f);
+
+ /* Check for bad buffer index values */
+ for (i = 0; i < f->n_vectors; i++)
+ {
+ if (from[i] == 0)
+ {
+ clib_warning ("BUG: buffer index 0 at index %d", i);
+ ASSERT (0);
+ }
+ else if (from[i] == 0xfefefefe)
+ {
+ clib_warning ("BUG: frame poison pattern at index %d", i);
+ ASSERT (0);
+ }
+ }
+ }
}
void
if (f->n_vectors == 0)
return;
+ ASSERT (vm == vlib_get_main ());
+
+ vlib_validate_frame_indices (f);
+
to_node = vlib_get_node (vm, to_node_index);
vec_add2 (vm->node_main.pending_frames, p, 1);
f->frame_flags |= VLIB_FRAME_PENDING;
- p->frame_index = vlib_frame_index (vm, f);
+ p->frame = vlib_get_frame (vm, f);
p->node_runtime_index = to_node->runtime_index;
p->next_frame_index = VLIB_PENDING_FRAME_NO_NEXT_FRAME;
}
/* Free given frame. */
void
-vlib_frame_free (vlib_main_t * vm, vlib_node_runtime_t * r, vlib_frame_t * f)
+vlib_frame_free (vlib_main_t *vm, vlib_frame_t *f)
{
vlib_node_main_t *nm = &vm->node_main;
- vlib_node_t *node;
vlib_frame_size_t *fs;
- u32 frame_index;
+ ASSERT (vm == vlib_get_main ());
ASSERT (f->frame_flags & VLIB_FRAME_IS_ALLOCATED);
- node = vlib_get_node (vm, r->node_index);
- fs = get_frame_size_info (nm, node->scalar_size, node->vector_size);
-
- frame_index = vlib_frame_index (vm, f);
+ fs = vec_elt_at_index (nm->frame_sizes, f->frame_size_index);
ASSERT (f->frame_flags & VLIB_FRAME_IS_ALLOCATED);
if (CLIB_DEBUG > 0)
{
vlib_next_frame_t *nf;
- vec_foreach (nf, vm->node_main.next_frames)
- ASSERT (nf->frame_index != frame_index);
+ vec_foreach (nf, vm->node_main.next_frames) ASSERT (nf->frame != f);
}
- f->frame_flags &= ~VLIB_FRAME_IS_ALLOCATED;
+ f->frame_flags &= ~(VLIB_FRAME_IS_ALLOCATED | VLIB_FRAME_NO_APPEND);
+ f->flags = 0;
- vec_add1 (fs->free_frame_indices, frame_index);
+ vec_add1 (fs->free_frames, f);
ASSERT (fs->n_alloc_frames > 0);
fs->n_alloc_frames -= 1;
}
show_frame_stats (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
- vlib_node_main_t *nm = &vm->node_main;
vlib_frame_size_t *fs;
- vlib_cli_output (vm, "%=6s%=12s%=12s", "Size", "# Alloc", "# Free");
- vec_foreach (fs, nm->frame_sizes)
- {
- u32 n_alloc = fs->n_alloc_frames;
- u32 n_free = vec_len (fs->free_frame_indices);
+ vlib_cli_output (vm, "%=8s%=6s%=12s%=12s", "Thread", "Size", "# Alloc",
+ "# Free");
+ foreach_vlib_main ()
+ {
+ vlib_node_main_t *nm = &this_vlib_main->node_main;
+ vec_foreach (fs, nm->frame_sizes)
+ {
+ u32 n_alloc = fs->n_alloc_frames;
+ u32 n_free = vec_len (fs->free_frames);
- if (n_alloc + n_free > 0)
- vlib_cli_output (vm, "%=6d%=12d%=12d",
- fs - nm->frame_sizes, n_alloc, n_free);
- }
+ if (n_alloc + n_free > 0)
+ vlib_cli_output (vm, "%=8d%=6d%=12d%=12d",
+ this_vlib_main->thread_index, fs->frame_size,
+ n_alloc, n_free);
+ }
+ }
return 0;
}
if (next_frame->flags & VLIB_FRAME_PENDING)
{
vlib_pending_frame_t *p;
- if (next_frame->frame_index != ~0)
+ if (next_frame->frame != NULL)
{
vec_foreach (p, nm->pending_frames)
{
- if (p->frame_index == next_frame->frame_index)
+ if (p->frame == next_frame->frame)
{
p->next_frame_index =
next_frame - vm->node_main.next_frames;
/* ??? Don't need valid flag: can use frame_index == ~0 */
if (PREDICT_FALSE (!(nf->flags & VLIB_FRAME_IS_ALLOCATED)))
{
- nf->frame_index = vlib_frame_alloc (vm, node, next_index);
+ nf->frame = vlib_frame_alloc (vm, node, next_index);
nf->flags |= VLIB_FRAME_IS_ALLOCATED;
}
- f = vlib_get_frame (vm, nf->frame_index);
+ f = nf->frame;
/* Has frame been removed from pending vector (e.g. finished dispatching)?
If so we can reuse frame. */
f->flags = 0;
}
- /* Allocate new frame if current one is already full. */
+ /* Allocate new frame if current one is marked as no-append or
+ it is already full. */
n_used = f->n_vectors;
- if (n_used >= VLIB_FRAME_SIZE || (allocate_new_next_frame && n_used > 0))
+ if (n_used >= VLIB_FRAME_SIZE || (allocate_new_next_frame && n_used > 0) ||
+ (f->frame_flags & VLIB_FRAME_NO_APPEND))
{
/* Old frame may need to be freed after dispatch, since we'll have
two redundant frames from node -> next node. */
if (!(nf->flags & VLIB_FRAME_NO_FREE_AFTER_DISPATCH))
{
- vlib_frame_t *f_old = vlib_get_frame (vm, nf->frame_index);
+ vlib_frame_t *f_old = vlib_get_frame (vm, nf->frame);
f_old->frame_flags |= VLIB_FRAME_FREE_AFTER_DISPATCH;
}
/* Allocate new frame to replace full one. */
- nf->frame_index = vlib_frame_alloc (vm, node, next_index);
- f = vlib_get_frame (vm, nf->frame_index);
+ f = nf->frame = vlib_frame_alloc (vm, node, next_index);
n_used = f->n_vectors;
}
u32 n_before, n_after;
nf = vlib_node_runtime_get_next_frame (vm, rt, next_index);
- f = vlib_get_frame (vm, nf->frame_index);
+ f = vlib_get_frame (vm, nf->frame);
ASSERT (n_vectors_left <= VLIB_FRAME_SIZE);
+
+ vlib_validate_frame_indices (f);
+
n_after = VLIB_FRAME_SIZE - n_vectors_left;
n_before = f->n_vectors;
vlib_frame_t *f;
u32 n_vectors_in_frame;
- if (buffer_main.callbacks_registered == 0 && CLIB_DEBUG > 0)
+ if (CLIB_DEBUG > 0)
vlib_put_next_frame_validate (vm, r, next_index, n_vectors_left);
nf = vlib_node_runtime_get_next_frame (vm, r, next_index);
- f = vlib_get_frame (vm, nf->frame_index);
+ f = vlib_get_frame (vm, nf->frame);
/* Make sure that magic number is still there. Otherwise, caller
has overrun frame meta data. */
if (!(f->frame_flags & VLIB_FRAME_PENDING))
{
__attribute__ ((unused)) vlib_node_t *node;
- vlib_node_t *next_node;
- vlib_node_runtime_t *next_runtime;
node = vlib_get_node (vm, r->node_index);
- next_node = vlib_get_next_node (vm, r->node_index, next_index);
- next_runtime = vlib_node_get_runtime (vm, next_node->index);
vec_add2 (nm->pending_frames, p, 1);
- p->frame_index = nf->frame_index;
+ p->frame = nf->frame;
p->node_runtime_index = nf->node_runtime_index;
p->next_frame_index = nf - nm->next_frames;
nf->flags |= VLIB_FRAME_PENDING;
f->frame_flags |= VLIB_FRAME_PENDING;
-
- /*
- * If we're going to dispatch this frame on another thread,
- * force allocation of a new frame. Otherwise, we create
- * a dangling frame reference. Each thread has its own copy of
- * the next_frames vector.
- */
- if (0 && r->thread_index != next_runtime->thread_index)
- {
- nf->frame_index = ~0;
- nf->flags &= ~(VLIB_FRAME_PENDING | VLIB_FRAME_IS_ALLOCATED);
- }
}
/* Copy trace flag from next_frame and from runtime. */
}
/* Sync up runtime (32 bit counters) and main node stats (64 bit counters). */
-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,
- uword n_ticks)
+void
+vlib_node_runtime_sync_stats_node (vlib_node_t *n, vlib_node_runtime_t *r,
+ uword n_calls, uword n_vectors,
+ uword n_clocks)
{
- vlib_node_t *n = vlib_get_node (vm, r->node_index);
-
n->stats_total.calls += n_calls + r->calls_since_last_overflow;
n->stats_total.vectors += n_vectors + r->vectors_since_last_overflow;
n->stats_total.clocks += n_clocks + r->clocks_since_last_overflow;
- n->stats_total.perf_counter_ticks += n_ticks +
- r->perf_counter_ticks_since_last_overflow;
- n->stats_total.perf_counter_vectors += n_vectors +
- r->perf_counter_vectors_since_last_overflow;
n->stats_total.max_clock = r->max_clock;
n->stats_total.max_clock_n = r->max_clock_n;
r->calls_since_last_overflow = 0;
r->vectors_since_last_overflow = 0;
r->clocks_since_last_overflow = 0;
- r->perf_counter_ticks_since_last_overflow = 0ULL;
- r->perf_counter_vectors_since_last_overflow = 0ULL;
+}
+
+void
+vlib_node_runtime_sync_stats (vlib_main_t *vm, vlib_node_runtime_t *r,
+ uword n_calls, uword n_vectors, uword n_clocks)
+{
+ vlib_node_t *n = vlib_get_node (vm, r->node_index);
+ vlib_node_runtime_sync_stats_node (n, r, n_calls, n_vectors, n_clocks);
}
always_inline void __attribute__ ((unused))
vlib_process_sync_stats (vlib_main_t * vm,
vlib_process_t * p,
- uword n_calls, uword n_vectors, uword n_clocks,
- uword n_ticks)
+ uword n_calls, uword n_vectors, uword n_clocks)
{
vlib_node_runtime_t *rt = &p->node_runtime;
vlib_node_t *n = vlib_get_node (vm, rt->node_index);
- vlib_node_runtime_sync_stats (vm, rt, n_calls, n_vectors, n_clocks,
- n_ticks);
+ vlib_node_runtime_sync_stats (vm, rt, n_calls, n_vectors, n_clocks);
n->stats_total.suspends += p->n_suspends;
p->n_suspends = 0;
}
if (n->type == VLIB_NODE_TYPE_PROCESS)
{
/* Nothing to do for PROCESS nodes except in main thread */
- if (vm != &vlib_global_main)
+ if (vm != vlib_get_first_main ())
return;
vlib_process_t *p = vlib_get_process_from_node (vm, n);
vec_elt_at_index (vm->node_main.nodes_by_type[n->type],
n->runtime_index);
- vlib_node_runtime_sync_stats (vm, rt, 0, 0, 0, 0);
+ vlib_node_runtime_sync_stats (vm, rt, 0, 0, 0);
/* Sync up runtime next frame vector counters with main node structure. */
{
vlib_node_runtime_update_stats (vlib_main_t * vm,
vlib_node_runtime_t * node,
uword n_calls,
- uword n_vectors, uword n_clocks,
- uword n_ticks)
+ uword n_vectors, uword n_clocks)
{
u32 ca0, ca1, v0, v1, cl0, cl1, r;
- u32 ptick0, ptick1, pvec0, pvec1;
cl0 = cl1 = node->clocks_since_last_overflow;
ca0 = ca1 = node->calls_since_last_overflow;
v0 = v1 = node->vectors_since_last_overflow;
- ptick0 = ptick1 = node->perf_counter_ticks_since_last_overflow;
- pvec0 = pvec1 = node->perf_counter_vectors_since_last_overflow;
ca1 = ca0 + n_calls;
v1 = v0 + n_vectors;
cl1 = cl0 + n_clocks;
- ptick1 = ptick0 + n_ticks;
- pvec1 = pvec0 + n_vectors;
node->calls_since_last_overflow = ca1;
node->clocks_since_last_overflow = cl1;
node->vectors_since_last_overflow = v1;
- node->perf_counter_ticks_since_last_overflow = ptick1;
- node->perf_counter_vectors_since_last_overflow = pvec1;
node->max_clock_n = node->max_clock > n_clocks ?
node->max_clock_n : n_vectors;
r = vlib_node_runtime_update_main_loop_vector_stats (vm, node, n_vectors);
- if (PREDICT_FALSE (ca1 < ca0 || v1 < v0 || cl1 < cl0) || (ptick1 < ptick0)
- || (pvec1 < pvec0))
+ if (PREDICT_FALSE (ca1 < ca0 || v1 < v0 || cl1 < cl0))
{
node->calls_since_last_overflow = ca0;
node->clocks_since_last_overflow = cl0;
node->vectors_since_last_overflow = v0;
- node->perf_counter_ticks_since_last_overflow = ptick0;
- node->perf_counter_vectors_since_last_overflow = pvec0;
- vlib_node_runtime_sync_stats (vm, node, n_calls, n_vectors, n_clocks,
- n_ticks);
+ vlib_node_runtime_sync_stats (vm, node, n_calls, n_vectors, n_clocks);
}
return r;
}
-static inline u64
-vlib_node_runtime_perf_counter (vlib_main_t * vm)
-{
- if (PREDICT_FALSE (vm->vlib_node_runtime_perf_counter_cb != 0))
- return ((*vm->vlib_node_runtime_perf_counter_cb) (vm));
- return 0ULL;
-}
-
always_inline void
vlib_process_update_stats (vlib_main_t * vm,
vlib_process_t * p,
- uword n_calls, uword n_vectors, uword n_clocks,
- uword n_ticks)
+ uword n_calls, uword n_vectors, uword n_clocks)
{
vlib_node_runtime_update_stats (vm, &p->node_runtime,
- n_calls, n_vectors, n_clocks, n_ticks);
+ n_calls, n_vectors, n_clocks);
}
static clib_error_t *
vlib_cli_elog_clear (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
- elog_reset_buffer (&vm->elog_main);
+ elog_reset_buffer (&vlib_global_main.elog_main);
return 0;
}
elog_save_buffer (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
- elog_main_t *em = &vm->elog_main;
+ elog_main_t *em = &vlib_global_main.elog_main;
char *file, *chroot_file;
clib_error_t *error = 0;
}
void
-elog_post_mortem_dump (void)
+vlib_post_mortem_dump (void)
{
- vlib_main_t *vm = &vlib_global_main;
- elog_main_t *em = &vm->elog_main;
- u8 *filename;
- clib_error_t *error;
-
- if (!vm->elog_post_mortem_dump)
- return;
+ vlib_global_main_t *vgm = vlib_get_global_main ();
- filename = format (0, "/tmp/elog_post_mortem.%d%c", getpid (), 0);
- error = elog_write_file (em, (char *) filename, 1 /* flush ring */ );
- if (error)
- clib_error_report (error);
- vec_free (filename);
+ for (int i = 0; i < vec_len (vgm->post_mortem_callbacks); i++)
+ (vgm->post_mortem_callbacks[i]) ();
}
/* *INDENT-OFF* */
elog_stop (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
- elog_main_t *em = &vm->elog_main;
+ elog_main_t *em = &vlib_global_main.elog_main;
em->n_total_events_disable_limit = em->n_total_events;
elog_restart (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
- elog_main_t *em = &vm->elog_main;
+ elog_main_t *em = &vlib_global_main.elog_main;
em->n_total_events_disable_limit = ~0;
/* *INDENT-ON* */
static clib_error_t *
-elog_resize (vlib_main_t * vm,
- unformat_input_t * input, vlib_cli_command_t * cmd)
+elog_resize_command_fn (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
{
- elog_main_t *em = &vm->elog_main;
+ elog_main_t *em = &vlib_global_main.elog_main;
u32 tmp;
/* Stop the parade */
- elog_reset_buffer (&vm->elog_main);
+ elog_reset_buffer (em);
if (unformat (input, "%d", &tmp))
{
VLIB_CLI_COMMAND (elog_resize_cli, static) = {
.path = "event-logger resize",
.short_help = "event-logger resize <nnn>",
- .function = elog_resize,
+ .function = elog_resize_command_fn,
};
/* *INDENT-ON* */
static void
elog_show_buffer_internal (vlib_main_t * vm, u32 n_events_to_show)
{
- elog_main_t *em = &vm->elog_main;
+ elog_main_t *em = &vlib_global_main.elog_main;
elog_event_t *e, *es;
f64 dt;
u32 node_index,
u64 time, u32 n_vectors, u32 is_return)
{
- vlib_main_t *evm = &vlib_global_main;
- elog_main_t *em = &evm->elog_main;
-
- if (VLIB_ELOG_MAIN_LOOP && n_vectors)
- elog_track (em,
- /* event type */
- vec_elt_at_index (is_return
- ? evm->node_return_elog_event_types
- : evm->node_call_elog_event_types,
- node_index),
- /* track */
- (vm->thread_index ? &vlib_worker_threads[vm->thread_index].
- elog_track : &em->default_track),
- /* data to log */ n_vectors);
-}
-
-#if VLIB_BUFFER_TRACE_TRAJECTORY > 0
-void (*vlib_buffer_trace_trajectory_cb) (vlib_buffer_t * b, u32 node_index);
-void (*vlib_buffer_trace_trajectory_init_cb) (vlib_buffer_t * b);
+ vlib_main_t *evm = vlib_get_first_main ();
+ elog_main_t *em = vlib_get_elog_main ();
+ int enabled = evm->elog_trace_graph_dispatch |
+ evm->elog_trace_graph_circuit;
-void
-vlib_buffer_trace_trajectory_init (vlib_buffer_t * b)
-{
- if (PREDICT_TRUE (vlib_buffer_trace_trajectory_init_cb != 0))
+ if (PREDICT_FALSE (enabled && n_vectors))
{
- (*vlib_buffer_trace_trajectory_init_cb) (b);
+ if (PREDICT_FALSE (!elog_is_enabled (em)))
+ {
+ evm->elog_trace_graph_dispatch = 0;
+ evm->elog_trace_graph_circuit = 0;
+ return;
+ }
+ if (PREDICT_TRUE
+ (evm->elog_trace_graph_dispatch ||
+ (evm->elog_trace_graph_circuit &&
+ node_index == evm->elog_trace_graph_circuit_node_index)))
+ {
+ elog_track (em,
+ /* event type */
+ vec_elt_at_index (is_return
+ ? evm->node_return_elog_event_types
+ : evm->node_call_elog_event_types,
+ node_index),
+ /* track */
+ (vm->thread_index ?
+ &vlib_worker_threads[vm->thread_index].elog_track
+ : &em->default_track),
+ /* data to log */ n_vectors);
+ }
}
}
-#endif
-
static inline void
add_trajectory_trace (vlib_buffer_t * b, u32 node_index)
{
#if VLIB_BUFFER_TRACE_TRAJECTORY > 0
- if (PREDICT_TRUE (vlib_buffer_trace_trajectory_cb != 0))
- {
- (*vlib_buffer_trace_trajectory_cb) (b, node_index);
- }
-#endif
-}
-
-static void
-dispatch_pcap_trace (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
-{
- int i;
- vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **bufp, *b;
- u8 name_tlv[64];
- pcap_main_t *pm = &vm->dispatch_pcap_main;
- u32 capture_size;
- vlib_node_t *n;
- i32 n_left;
- f64 time_now = vlib_time_now (vm);
- u32 *from;
- u32 name_length;
- u8 *d;
-
- /* Input nodes don't have frames yet */
- if (frame == 0 || frame->n_vectors == 0)
+ if (PREDICT_FALSE (b->trajectory_nb >= VLIB_BUFFER_TRACE_TRAJECTORY_MAX))
return;
-
- from = vlib_frame_vector_args (frame);
- vlib_get_buffers (vm, from, bufs, frame->n_vectors);
- bufp = bufs;
-
- /* Create a node name TLV, since WS can't possibly guess */
- n = vlib_get_node (vm, node->node_index);
- name_length = vec_len (n->name);
- name_length = name_length < ARRAY_LEN (name_tlv) - 2 ?
- name_length : ARRAY_LEN (name_tlv) - 2;
-
- name_tlv[0] = (u8) name_length;
- clib_memcpy_fast (name_tlv + 1, n->name, name_length);
- name_tlv[name_length + 1] = 0;
-
- for (i = 0; i < frame->n_vectors; i++)
- {
- if (PREDICT_TRUE (pm->n_packets_captured < pm->n_packets_to_capture))
- {
- b = bufp[i];
-
- /* Figure out how many bytes we're capturing */
- capture_size = (sizeof (vlib_buffer_t) - VLIB_BUFFER_PRE_DATA_SIZE) + vlib_buffer_length_in_chain (vm, b) + sizeof (u32) + +(name_length + 2); /* +2: count plus NULL byte */
-
- clib_spinlock_lock_if_init (&pm->lock);
- n_left = clib_min (capture_size, 512);
- d = pcap_add_packet (pm, time_now, n_left, capture_size);
-
- /* Copy the buffer index */
- clib_memcpy_fast (d, &from[i], sizeof (u32));
- d += 4;
-
- /* Copy the name TLV */
- clib_memcpy_fast (d, name_tlv, name_length + 2);
- d += name_length + 2;
-
- /* Copy the buffer metadata, but not the rewrite space */
- clib_memcpy_fast (d, b, sizeof (*b) - VLIB_BUFFER_PRE_DATA_SIZE);
- d += sizeof (*b) - VLIB_BUFFER_PRE_DATA_SIZE;
-
- n_left = clib_min (vlib_buffer_length_in_chain (vm, b),
- 512 - (sizeof (*b) - VLIB_BUFFER_PRE_DATA_SIZE));
- /* Copy the packet data */
- while (1)
- {
- u32 copy_length = clib_min ((u32) n_left, b->current_length);
- clib_memcpy_fast (d, b->data + b->current_data, copy_length);
- n_left -= b->current_length;
- if (n_left <= 0)
- break;
- d += b->current_length;
- ASSERT (b->flags & VLIB_BUFFER_NEXT_PRESENT);
- b = vlib_get_buffer (vm, b->next_buffer);
- }
- clib_spinlock_unlock_if_init (&pm->lock);
- }
- }
+ b->trajectory_trace[b->trajectory_nb] = node_index;
+ b->trajectory_nb++;
+#endif
}
static_always_inline u64
vm->cpu_time_last_node_dispatch = last_time_stamp;
- if (1 /* || vm->thread_index == node->thread_index */ )
- {
- u64 pmc_before, pmc_delta;
+ vlib_elog_main_loop_event (vm, node->node_index,
+ last_time_stamp, frame ? frame->n_vectors : 0,
+ /* is_after */ 0);
- vlib_elog_main_loop_event (vm, node->node_index,
- last_time_stamp,
- frame ? frame->n_vectors : 0,
- /* is_after */ 0);
-
- /*
- * To validate accounting: pmc_before = last_time_stamp
- * perf ticks should equal clocks/pkt...
- */
- pmc_before = vlib_node_runtime_perf_counter (vm);
+ vlib_node_runtime_perf_counter (vm, node, frame, 0, last_time_stamp,
+ VLIB_NODE_RUNTIME_PERF_BEFORE);
- /*
- * Turn this on if you run into
- * "bad monkey" contexts, and you want to know exactly
- * which nodes they've visited... See ixge.c...
- */
- if (VLIB_BUFFER_TRACE_TRAJECTORY && frame)
+ /*
+ * Turn this on if you run into
+ * "bad monkey" contexts, and you want to know exactly
+ * which nodes they've visited... See ixge.c...
+ */
+ if (VLIB_BUFFER_TRACE_TRAJECTORY && frame)
+ {
+ int i;
+ u32 *from;
+ from = vlib_frame_vector_args (frame);
+ for (i = 0; i < frame->n_vectors; i++)
{
- int i;
- u32 *from;
- from = vlib_frame_vector_args (frame);
- for (i = 0; i < frame->n_vectors; i++)
- {
- vlib_buffer_t *b = vlib_get_buffer (vm, from[i]);
- add_trajectory_trace (b, node->node_index);
- }
- if (PREDICT_FALSE (vm->dispatch_pcap_enable))
- dispatch_pcap_trace (vm, node, frame);
- n = node->function (vm, node, frame);
+ vlib_buffer_t *b = vlib_get_buffer (vm, from[i]);
+ add_trajectory_trace (b, node->node_index);
}
+ if (PREDICT_TRUE (vm->dispatch_wrapper_fn == 0))
+ n = node->function (vm, node, frame);
else
- {
- if (PREDICT_FALSE (vm->dispatch_pcap_enable))
- dispatch_pcap_trace (vm, node, frame);
- n = node->function (vm, node, frame);
- }
+ n = vm->dispatch_wrapper_fn (vm, node, frame);
+ }
+ else
+ {
+ if (PREDICT_TRUE (vm->dispatch_wrapper_fn == 0))
+ n = node->function (vm, node, frame);
+ else
+ n = vm->dispatch_wrapper_fn (vm, node, frame);
+ }
- t = clib_cpu_time_now ();
+ t = clib_cpu_time_now ();
- /*
- * To validate accounting: pmc_delta = t - pmc_before;
- * perf ticks should equal clocks/pkt...
- */
- pmc_delta = vlib_node_runtime_perf_counter (vm) - pmc_before;
-
- vlib_elog_main_loop_event (vm, node->node_index, t, n, /* is_after */
- 1);
-
- vm->main_loop_vectors_processed += n;
- vm->main_loop_nodes_processed += n > 0;
-
- v = vlib_node_runtime_update_stats (vm, node,
- /* n_calls */ 1,
- /* n_vectors */ n,
- /* n_clocks */ t - last_time_stamp,
- pmc_delta /* PMC ticks */ );
-
- /* When in interrupt mode and vector rate crosses threshold switch to
- polling mode. */
- if ((dispatch_state == VLIB_NODE_STATE_INTERRUPT)
- || (dispatch_state == VLIB_NODE_STATE_POLLING
- && (node->flags
- & VLIB_NODE_FLAG_SWITCH_FROM_INTERRUPT_TO_POLLING_MODE)))
- {
-#ifdef DISPATCH_NODE_ELOG_REQUIRED
- ELOG_TYPE_DECLARE (e) =
- {
- .function = (char *) __FUNCTION__,.format =
- "%s vector length %d, switching to %s",.format_args =
- "T4i4t4",.n_enum_strings = 2,.enum_strings =
- {
- "interrupt", "polling",},};
- struct
- {
- u32 node_name, vector_length, is_polling;
- } *ed;
- vlib_worker_thread_t *w = vlib_worker_threads + vm->thread_index;
-#endif
+ vlib_node_runtime_perf_counter (vm, node, frame, n, t,
+ VLIB_NODE_RUNTIME_PERF_AFTER);
- if ((dispatch_state == VLIB_NODE_STATE_INTERRUPT
- && v >= nm->polling_threshold_vector_length) &&
- !(node->flags &
- VLIB_NODE_FLAG_SWITCH_FROM_INTERRUPT_TO_POLLING_MODE))
+ vlib_elog_main_loop_event (vm, node->node_index, t, n, 1 /* is_after */ );
+
+ vm->main_loop_vectors_processed += n;
+ vm->main_loop_nodes_processed += n > 0;
+
+ v = vlib_node_runtime_update_stats (vm, node,
+ /* n_calls */ 1,
+ /* n_vectors */ n,
+ /* n_clocks */ t - last_time_stamp);
+
+ /* When in adaptive mode and vector rate crosses threshold switch to
+ polling mode and vice versa. */
+ if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_ADAPTIVE_MODE))
+ {
+ /* *INDENT-OFF* */
+ ELOG_TYPE_DECLARE (e) =
+ {
+ .function = (char *) __FUNCTION__,
+ .format = "%s vector length %d, switching to %s",
+ .format_args = "T4i4t4",
+ .n_enum_strings = 2,
+ .enum_strings = {
+ "interrupt", "polling",
+ },
+ };
+ /* *INDENT-ON* */
+ struct
+ {
+ u32 node_name, vector_length, is_polling;
+ } *ed;
+
+ if ((dispatch_state == VLIB_NODE_STATE_INTERRUPT
+ && v >= nm->polling_threshold_vector_length) &&
+ !(node->flags &
+ VLIB_NODE_FLAG_SWITCH_FROM_INTERRUPT_TO_POLLING_MODE))
+ {
+ vlib_node_t *n = vlib_get_node (vm, node->node_index);
+ n->state = VLIB_NODE_STATE_POLLING;
+ node->state = VLIB_NODE_STATE_POLLING;
+ node->flags &=
+ ~VLIB_NODE_FLAG_SWITCH_FROM_POLLING_TO_INTERRUPT_MODE;
+ node->flags |= VLIB_NODE_FLAG_SWITCH_FROM_INTERRUPT_TO_POLLING_MODE;
+ nm->input_node_counts_by_state[VLIB_NODE_STATE_INTERRUPT] -= 1;
+ nm->input_node_counts_by_state[VLIB_NODE_STATE_POLLING] += 1;
+
+ if (PREDICT_FALSE (
+ vlib_get_first_main ()->elog_trace_graph_dispatch))
{
- vlib_node_t *n = vlib_get_node (vm, node->node_index);
- n->state = VLIB_NODE_STATE_POLLING;
- node->state = VLIB_NODE_STATE_POLLING;
- node->flags &=
- ~VLIB_NODE_FLAG_SWITCH_FROM_POLLING_TO_INTERRUPT_MODE;
- node->flags |=
- VLIB_NODE_FLAG_SWITCH_FROM_INTERRUPT_TO_POLLING_MODE;
- nm->input_node_counts_by_state[VLIB_NODE_STATE_INTERRUPT] -= 1;
- nm->input_node_counts_by_state[VLIB_NODE_STATE_POLLING] += 1;
+ vlib_worker_thread_t *w = vlib_worker_threads
+ + vm->thread_index;
-#ifdef DISPATCH_NODE_ELOG_REQUIRED
ed = ELOG_TRACK_DATA (&vlib_global_main.elog_main, e,
w->elog_track);
ed->node_name = n->name_elog_string;
ed->vector_length = v;
ed->is_polling = 1;
-#endif
}
- else if (dispatch_state == VLIB_NODE_STATE_POLLING
- && v <= nm->interrupt_threshold_vector_length)
+ }
+ else if (dispatch_state == VLIB_NODE_STATE_POLLING
+ && v <= nm->interrupt_threshold_vector_length)
+ {
+ vlib_node_t *n = vlib_get_node (vm, node->node_index);
+ if (node->flags &
+ VLIB_NODE_FLAG_SWITCH_FROM_POLLING_TO_INTERRUPT_MODE)
{
- vlib_node_t *n = vlib_get_node (vm, node->node_index);
- if (node->flags &
- VLIB_NODE_FLAG_SWITCH_FROM_POLLING_TO_INTERRUPT_MODE)
- {
- /* Switch to interrupt mode after dispatch in polling one more time.
- This allows driver to re-enable interrupts. */
- n->state = VLIB_NODE_STATE_INTERRUPT;
- node->state = VLIB_NODE_STATE_INTERRUPT;
- node->flags &=
- ~VLIB_NODE_FLAG_SWITCH_FROM_INTERRUPT_TO_POLLING_MODE;
- nm->input_node_counts_by_state[VLIB_NODE_STATE_POLLING] -=
- 1;
- nm->input_node_counts_by_state[VLIB_NODE_STATE_INTERRUPT] +=
- 1;
+ /* Switch to interrupt mode after dispatch in polling one more time.
+ This allows driver to re-enable interrupts. */
+ n->state = VLIB_NODE_STATE_INTERRUPT;
+ node->state = VLIB_NODE_STATE_INTERRUPT;
+ node->flags &=
+ ~VLIB_NODE_FLAG_SWITCH_FROM_INTERRUPT_TO_POLLING_MODE;
+ nm->input_node_counts_by_state[VLIB_NODE_STATE_POLLING] -= 1;
+ nm->input_node_counts_by_state[VLIB_NODE_STATE_INTERRUPT] += 1;
- }
- else
+ }
+ else
+ {
+ vlib_worker_thread_t *w = vlib_worker_threads
+ + vm->thread_index;
+ node->flags |=
+ VLIB_NODE_FLAG_SWITCH_FROM_POLLING_TO_INTERRUPT_MODE;
+ if (PREDICT_FALSE (
+ vlib_get_first_main ()->elog_trace_graph_dispatch))
{
- node->flags |=
- VLIB_NODE_FLAG_SWITCH_FROM_POLLING_TO_INTERRUPT_MODE;
-#ifdef DISPATCH_NODE_ELOG_REQUIRED
ed = ELOG_TRACK_DATA (&vlib_global_main.elog_main, e,
w->elog_track);
ed->node_name = n->name_elog_string;
ed->vector_length = v;
ed->is_polling = 0;
-#endif
}
}
}
{
vlib_node_main_t *nm = &vm->node_main;
vlib_frame_t *f;
- vlib_next_frame_t *nf, nf_dummy;
+ vlib_next_frame_t *nf, nf_placeholder;
vlib_node_runtime_t *n;
- u32 restore_frame_index;
+ vlib_frame_t *restore_frame;
vlib_pending_frame_t *p;
/* See comment below about dangling references to nm->pending_frames */
n = vec_elt_at_index (nm->nodes_by_type[VLIB_NODE_TYPE_INTERNAL],
p->node_runtime_index);
- f = vlib_get_frame (vm, p->frame_index);
+ f = vlib_get_frame (vm, p->frame);
if (p->next_frame_index == VLIB_PENDING_FRAME_NO_NEXT_FRAME)
{
- /* No next frame: so use dummy on stack. */
- nf = &nf_dummy;
+ /* No next frame: so use placeholder on stack. */
+ nf = &nf_placeholder;
nf->flags = f->frame_flags & VLIB_NODE_FLAG_TRACE;
- nf->frame_index = ~p->frame_index;
+ nf->frame = NULL;
}
else
nf = vec_elt_at_index (nm->next_frames, p->next_frame_index);
/* Force allocation of new frame while current frame is being
dispatched. */
- restore_frame_index = ~0;
- if (nf->frame_index == p->frame_index)
+ restore_frame = NULL;
+ if (nf->frame == p->frame)
{
- nf->frame_index = ~0;
+ nf->frame = NULL;
nf->flags &= ~VLIB_FRAME_IS_ALLOCATED;
if (!(n->flags & VLIB_NODE_FLAG_FRAME_NO_FREE_AFTER_DISPATCH))
- restore_frame_index = p->frame_index;
+ restore_frame = p->frame;
}
/* Frame must be pending. */
VLIB_NODE_TYPE_INTERNAL,
VLIB_NODE_STATE_POLLING,
f, last_time_stamp);
+ /* Internal node vector-rate accounting, for summary stats */
+ vm->internal_node_vectors += f->n_vectors;
+ vm->internal_node_calls++;
+ vm->internal_node_last_vectors_per_main_loop =
+ (f->n_vectors > vm->internal_node_last_vectors_per_main_loop) ?
+ f->n_vectors : vm->internal_node_last_vectors_per_main_loop;
- f->frame_flags &= ~VLIB_FRAME_PENDING;
+ f->frame_flags &= ~(VLIB_FRAME_PENDING | VLIB_FRAME_NO_APPEND);
/* Frame is ready to be used again, so restore it. */
- if (restore_frame_index != ~0)
+ if (restore_frame != NULL)
{
/*
* We musn't restore a frame that is flagged to be freed. This
nf = vec_elt_at_index (nm->next_frames, p->next_frame_index);
nf->flags |= VLIB_FRAME_IS_ALLOCATED;
- if (~0 == nf->frame_index)
+ if (NULL == nf->frame)
{
/* no new frame has been assigned to this node, use the saved one */
- nf->frame_index = restore_frame_index;
+ nf->frame = restore_frame;
f->n_vectors = 0;
+ f->flags = 0;
}
else
{
/* The node has gained a frame, implying packets from the current frame
were re-queued to this same node. we don't need the saved one
anymore */
- vlib_frame_free (vm, n, f);
+ vlib_frame_free (vm, f);
}
}
else
if (f->frame_flags & VLIB_FRAME_FREE_AFTER_DISPATCH)
{
ASSERT (!(n->flags & VLIB_NODE_FLAG_FRAME_NO_FREE_AFTER_DISPATCH));
- vlib_frame_free (vm, n, f);
+ vlib_frame_free (vm, f);
}
}
vm = a->vm;
p = a->process;
+ vlib_process_finish_switch_stack (vm);
+
f = a->frame;
node = &p->node_runtime;
ASSERT (vlib_process_stack_is_valid (p));
+ vlib_process_start_switch_stack (vm, 0);
clib_longjmp (&p->return_longjmp, n);
return n;
r = clib_setjmp (&p->return_longjmp, VLIB_PROCESS_RETURN_LONGJMP_RETURN);
if (r == VLIB_PROCESS_RETURN_LONGJMP_RETURN)
- r = clib_calljmp (vlib_process_bootstrap, pointer_to_uword (&a),
- (void *) p->stack + (1 << p->log2_n_stack_bytes));
+ {
+ vlib_process_start_switch_stack (vm, p);
+ r = clib_calljmp (vlib_process_bootstrap, pointer_to_uword (&a),
+ (void *) p->stack + (1 << p->log2_n_stack_bytes));
+ }
+ else
+ vlib_process_finish_switch_stack (vm);
return r;
}
static_always_inline uword
-vlib_process_resume (vlib_process_t * p)
+vlib_process_resume (vlib_main_t * vm, vlib_process_t * p)
{
uword r;
p->flags &= ~(VLIB_PROCESS_IS_SUSPENDED_WAITING_FOR_CLOCK
| VLIB_PROCESS_RESUME_PENDING);
r = clib_setjmp (&p->return_longjmp, VLIB_PROCESS_RETURN_LONGJMP_RETURN);
if (r == VLIB_PROCESS_RETURN_LONGJMP_RETURN)
- clib_longjmp (&p->resume_longjmp, VLIB_PROCESS_RESUME_LONGJMP_RESUME);
+ {
+ vlib_process_start_switch_stack (vm, p);
+ clib_longjmp (&p->resume_longjmp, VLIB_PROCESS_RESUME_LONGJMP_RESUME);
+ }
+ else
+ vlib_process_finish_switch_stack (vm);
return r;
}
old_process_index = nm->current_process_index;
nm->current_process_index = node->runtime_index;
+ vlib_node_runtime_perf_counter (vm, node_runtime, f, 0, last_time_stamp,
+ VLIB_NODE_RUNTIME_PERF_BEFORE);
+
n_vectors = vlib_process_startup (vm, p, f);
nm->current_process_index = old_process_index;
n_vectors = 0;
pool_get (nm->suspended_process_frames, pf);
pf->node_runtime_index = node->runtime_index;
- pf->frame_index = f ? vlib_frame_index (vm, f) : ~0;
+ pf->frame = f;
pf->next_frame_index = ~0;
p->n_suspends += 1;
vlib_elog_main_loop_event (vm, node_runtime->node_index, t, is_suspend,
/* is_after */ 1);
+ vlib_node_runtime_perf_counter (vm, node_runtime, f, n_vectors, t,
+ VLIB_NODE_RUNTIME_PERF_AFTER);
+
vlib_process_update_stats (vm, p,
/* n_calls */ !is_suspend,
/* n_vectors */ n_vectors,
- /* n_clocks */ t - last_time_stamp,
- /* pmc_ticks */ 0ULL);
+ /* n_clocks */ t - last_time_stamp);
return t;
}
node_runtime = &p->node_runtime;
node = vlib_get_node (vm, node_runtime->node_index);
- f = pf->frame_index != ~0 ? vlib_get_frame (vm, pf->frame_index) : 0;
+ f = pf->frame;
vlib_elog_main_loop_event (vm, node_runtime->node_index, t,
f ? f->n_vectors : 0, /* is_after */ 0);
/* Save away current process for suspend. */
nm->current_process_index = node->runtime_index;
- n_vectors = vlib_process_resume (p);
+ vlib_node_runtime_perf_counter (vm, node_runtime, f, 0, last_time_stamp,
+ VLIB_NODE_RUNTIME_PERF_BEFORE);
+
+ n_vectors = vlib_process_resume (vm, p);
t = clib_cpu_time_now ();
nm->current_process_index = ~0;
vlib_elog_main_loop_event (vm, node_runtime->node_index, t, !is_suspend,
/* is_after */ 1);
+ vlib_node_runtime_perf_counter (vm, node_runtime, f, n_vectors, t,
+ VLIB_NODE_RUNTIME_PERF_AFTER);
+
vlib_process_update_stats (vm, p,
/* n_calls */ !is_suspend,
/* n_vectors */ n_vectors,
- /* n_clocks */ t - last_time_stamp,
- /* pmc_ticks */ 0ULL);
+ /* n_clocks */ t - last_time_stamp);
return t;
}
{
}
-
static_always_inline void
vlib_main_or_worker_loop (vlib_main_t * vm, int is_main)
{
vlib_thread_main_t *tm = vlib_get_thread_main ();
uword i;
u64 cpu_time_now;
+ f64 now;
vlib_frame_queue_main_t *fqm;
- u32 *last_node_runtime_indices = 0;
+ u32 frame_queue_check_counter = 0;
/* Initialize pending node vector. */
if (is_main)
{
vec_resize (nm->pending_frames, 32);
- _vec_len (nm->pending_frames) = 0;
+ vec_set_len (nm->pending_frames, 0);
}
/* Mark time of main loop start. */
cpu_time_now = clib_cpu_time_now ();
/* Pre-allocate interupt runtime indices and lock. */
- vec_alloc (nm->pending_interrupt_node_runtime_indices, 32);
- vec_alloc (last_node_runtime_indices, 32);
- if (!is_main)
- clib_spinlock_init (&nm->pending_interrupt_lock);
+ vec_alloc_aligned (nm->pending_interrupts, 1, CLIB_CACHE_LINE_BYTES);
/* Pre-allocate expired nodes. */
if (!nm->polling_threshold_vector_length)
if (!nm->interrupt_threshold_vector_length)
nm->interrupt_threshold_vector_length = 5;
- /* Make sure the performance monitor counter is disabled */
- vm->perf_counter_id = ~0;
+ vm->cpu_id = clib_get_current_cpu_id ();
+ vm->numa_node = clib_get_current_numa_node ();
+ os_set_numa_index (vm->numa_node);
/* Start all processes. */
if (is_main)
{
uword i;
+
+ /*
+ * Perform an initial barrier sync. Pays no attention to
+ * the barrier sync hold-down timer scheme, which won't work
+ * at this point in time.
+ */
+ vlib_worker_thread_initial_barrier_sync_and_release (vm);
+
nm->current_process_index = ~0;
for (i = 0; i < vec_len (nm->processes); i++)
cpu_time_now = dispatch_process (vm, nm->processes[i], /* frame */ 0,
}
if (!is_main)
+ vlib_worker_thread_barrier_check ();
+
+ if (PREDICT_FALSE (vm->check_frame_queues + frame_queue_check_counter))
{
- vlib_worker_thread_barrier_check ();
+ u32 processed = 0;
+ vlib_frame_queue_dequeue_fn_t *fn;
+
+ if (vm->check_frame_queues)
+ {
+ frame_queue_check_counter = 100;
+ vm->check_frame_queues = 0;
+ }
+
vec_foreach (fqm, tm->frame_queue_mains)
- vlib_frame_queue_dequeue (vm, fqm);
- if (PREDICT_FALSE (vm->worker_thread_main_loop_callback != 0))
- ((void (*)(vlib_main_t *)) vm->worker_thread_main_loop_callback)
- (vm);
+ {
+ fn = fqm->frame_queue_dequeue_fn;
+ processed += (fn) (vm, fqm);
+ }
+
+ /* No handoff queue work found? */
+ if (processed)
+ frame_queue_check_counter = 100;
+ else
+ frame_queue_check_counter--;
}
+ if (PREDICT_FALSE (vec_len (vm->worker_thread_main_loop_callbacks)))
+ clib_call_callbacks (vm->worker_thread_main_loop_callbacks, vm,
+ cpu_time_now);
+
/* Process pre-input nodes. */
+ cpu_time_now = clib_cpu_time_now ();
vec_foreach (n, nm->nodes_by_type[VLIB_NODE_TYPE_PRE_INPUT])
cpu_time_now = dispatch_node (vm, n,
VLIB_NODE_TYPE_PRE_INPUT,
if (PREDICT_TRUE (is_main && vm->queue_signal_pending == 0))
vm->queue_signal_callback (vm);
- /* Next handle interrupts. */
- {
- /* unlocked read, for performance */
- uword l = _vec_len (nm->pending_interrupt_node_runtime_indices);
- uword i;
- if (PREDICT_FALSE (l > 0))
- {
- u32 *tmp;
- if (!is_main)
- {
- clib_spinlock_lock (&nm->pending_interrupt_lock);
- /* Re-read w/ lock held, in case another thread added an item */
- l = _vec_len (nm->pending_interrupt_node_runtime_indices);
- }
+ if (__atomic_load_n (nm->pending_interrupts, __ATOMIC_ACQUIRE))
+ {
+ int int_num = -1;
+ *nm->pending_interrupts = 0;
+
+ while ((int_num =
+ clib_interrupt_get_next (nm->interrupts, int_num)) != -1)
+ {
+ vlib_node_runtime_t *n;
+ clib_interrupt_clear (nm->interrupts, int_num);
+ n = vec_elt_at_index (nm->nodes_by_type[VLIB_NODE_TYPE_INPUT],
+ int_num);
+ cpu_time_now = dispatch_node (vm, n, VLIB_NODE_TYPE_INPUT,
+ VLIB_NODE_STATE_INTERRUPT,
+ /* frame */ 0, cpu_time_now);
+ }
+ }
- tmp = nm->pending_interrupt_node_runtime_indices;
- nm->pending_interrupt_node_runtime_indices =
- last_node_runtime_indices;
- last_node_runtime_indices = tmp;
- _vec_len (last_node_runtime_indices) = 0;
- if (!is_main)
- clib_spinlock_unlock (&nm->pending_interrupt_lock);
- for (i = 0; i < l; i++)
- {
- n = vec_elt_at_index (nm->nodes_by_type[VLIB_NODE_TYPE_INPUT],
- last_node_runtime_indices[i]);
- cpu_time_now =
- dispatch_node (vm, n, VLIB_NODE_TYPE_INPUT,
- VLIB_NODE_STATE_INTERRUPT,
- /* frame */ 0,
- cpu_time_now);
- }
- }
- }
/* Input nodes may have added work to the pending vector.
Process pending vector until there is nothing left.
All pending vectors will be processed from input -> output. */
for (i = 0; i < _vec_len (nm->pending_frames); i++)
cpu_time_now = dispatch_pending_node (vm, i, cpu_time_now);
/* Reset pending vector for next iteration. */
- _vec_len (nm->pending_frames) = 0;
+ vec_set_len (nm->pending_frames, 0);
if (is_main)
{
+ /* *INDENT-OFF* */
+ ELOG_TYPE_DECLARE (es) =
+ {
+ .format = "process tw start",
+ .format_args = "",
+ };
+ ELOG_TYPE_DECLARE (ee) =
+ {
+ .format = "process tw end: %d",
+ .format_args = "i4",
+ };
+ /* *INDENT-ON* */
+
+ struct
+ {
+ int nready_procs;
+ } *ed;
+
/* Check if process nodes have expired from timing wheel. */
ASSERT (nm->data_from_advancing_timing_wheel != 0);
+ if (PREDICT_FALSE (vm->elog_trace_graph_dispatch))
+ ed = ELOG_DATA (&vlib_global_main.elog_main, es);
+
nm->data_from_advancing_timing_wheel =
TW (tw_timer_expire_timers_vec)
((TWT (tw_timer_wheel) *) nm->timing_wheel, vlib_time_now (vm),
ASSERT (nm->data_from_advancing_timing_wheel != 0);
+ if (PREDICT_FALSE (vm->elog_trace_graph_dispatch))
+ {
+ ed = ELOG_DATA (&vlib_global_main.elog_main, ee);
+ ed->nready_procs =
+ _vec_len (nm->data_from_advancing_timing_wheel);
+ }
+
if (PREDICT_FALSE
(_vec_len (nm->data_from_advancing_timing_wheel) > 0))
{
dispatch_suspended_process (vm, di, cpu_time_now);
}
}
- _vec_len (nm->data_from_advancing_timing_wheel) = 0;
+ vec_set_len (nm->data_from_advancing_timing_wheel, 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 ();
+ vm->loops_this_reporting_interval++;
+ now = clib_time_now_internal (&vm->clib_time, cpu_time_now);
+ /* Time to update loops_per_second? */
+ if (PREDICT_FALSE (now >= vm->loop_interval_end))
+ {
+ /* Next sample ends in 20ms */
+ if (vm->loop_interval_start)
+ {
+ f64 this_loops_per_second;
+
+ this_loops_per_second =
+ ((f64) vm->loops_this_reporting_interval) / (now -
+ vm->loop_interval_start);
+
+ vm->loops_per_second =
+ vm->loops_per_second * vm->damping_constant +
+ (1.0 - vm->damping_constant) * this_loops_per_second;
+ if (vm->loops_per_second != 0.0)
+ vm->seconds_per_loop = 1.0 / vm->loops_per_second;
+ else
+ vm->seconds_per_loop = 0.0;
+ }
+ /* New interval starts now, and ends in 20ms */
+ vm->loop_interval_start = now;
+ vm->loop_interval_end = now + 2e-4;
+ vm->loops_this_reporting_interval = 0;
+ }
}
}
vlib_main_or_worker_loop (vm, /* is_main */ 0);
}
-vlib_main_t vlib_global_main;
+vlib_global_main_t vlib_global_main;
+
+void
+vlib_add_del_post_mortem_callback (void *cb, int is_add)
+{
+ vlib_global_main_t *vgm = vlib_get_global_main ();
+ int i;
+
+ if (is_add == 0)
+ {
+ for (i = vec_len (vgm->post_mortem_callbacks) - 1; i >= 0; i--)
+ if (vgm->post_mortem_callbacks[i] == cb)
+ vec_del1 (vgm->post_mortem_callbacks, i);
+ return;
+ }
+
+ for (i = 0; i < vec_len (vgm->post_mortem_callbacks); i++)
+ if (vgm->post_mortem_callbacks[i] == cb)
+ return;
+ vec_add1 (vgm->post_mortem_callbacks, cb);
+}
+
+static void
+elog_post_mortem_dump (void)
+{
+ elog_main_t *em = vlib_get_elog_main ();
+
+ u8 *filename;
+ clib_error_t *error;
+
+ filename = format (0, "/tmp/elog_post_mortem.%d%c", getpid (), 0);
+ error = elog_write_file (em, (char *) filename, 1 /* flush ring */);
+ if (error)
+ clib_error_report (error);
+ /*
+ * We're in the middle of crashing. Don't try to free the filename.
+ */
+}
static clib_error_t *
vlib_main_configure (vlib_main_t * vm, unformat_input_t * input)
{
+ vlib_global_main_t *vgm = vlib_get_global_main ();
int turn_on_mem_trace = 0;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
turn_on_mem_trace = 1;
else if (unformat (input, "elog-events %d",
- &vm->elog_main.event_ring_size))
- ;
+ &vgm->configured_elog_ring_size))
+ vgm->configured_elog_ring_size =
+ 1 << max_log2 (vgm->configured_elog_ring_size);
else if (unformat (input, "elog-post-mortem-dump"))
- vm->elog_post_mortem_dump = 1;
+ vlib_add_del_post_mortem_callback (elog_post_mortem_dump,
+ /* is_add */ 1);
+ else if (unformat (input, "buffer-alloc-success-rate %f",
+ &vm->buffer_alloc_success_rate))
+ {
+ if (VLIB_BUFFER_ALLOC_FAULT_INJECTOR == 0)
+ return clib_error_return
+ (0, "Buffer fault injection not configured");
+ }
+ else if (unformat (input, "buffer-alloc-success-seed %u",
+ &vm->buffer_alloc_success_seed))
+ {
+ if (VLIB_BUFFER_ALLOC_FAULT_INJECTOR == 0)
+ return clib_error_return
+ (0, "Buffer fault injection not configured");
+ }
else
return unformat_parse_error (input);
}
VLIB_EARLY_CONFIG_FUNCTION (vlib_main_configure, "vlib");
static void
-dummy_queue_signal_callback (vlib_main_t * vm)
+placeholder_queue_signal_callback (vlib_main_t * vm)
{
}
#define foreach_weak_reference_stub \
-_(vlib_map_stat_segment_init) \
_(vpe_api_init) \
_(vlibmemory_init) \
_(map_api_segment_init)
foreach_weak_reference_stub;
#undef _
+void vl_api_set_elog_main (elog_main_t * m) __attribute__ ((weak));
+void
+vl_api_set_elog_main (elog_main_t * m)
+{
+ clib_warning ("STUB");
+}
+
+int vl_api_set_elog_trace_api_messages (int enable) __attribute__ ((weak));
+int
+vl_api_set_elog_trace_api_messages (int enable)
+{
+ clib_warning ("STUB");
+ return 0;
+}
+
+int vl_api_get_elog_trace_api_messages (void) __attribute__ ((weak));
+int
+vl_api_get_elog_trace_api_messages (void)
+{
+ clib_warning ("STUB");
+ return 0;
+}
+
/* Main function. */
int
vlib_main (vlib_main_t * volatile vm, unformat_input_t * input)
{
+ vlib_global_main_t *vgm = vlib_get_global_main ();
clib_error_t *volatile error;
vlib_node_main_t *nm = &vm->node_main;
- vm->queue_signal_callback = dummy_queue_signal_callback;
-
- clib_time_init (&vm->clib_time);
+ vm->queue_signal_callback = placeholder_queue_signal_callback;
- /* Turn on event log. */
- if (!vm->elog_main.event_ring_size)
- vm->elog_main.event_ring_size = 128 << 10;
- elog_init (&vm->elog_main, vm->elog_main.event_ring_size);
- elog_enable_disable (&vm->elog_main, 1);
+ /* Reconfigure event log which is enabled very early */
+ if (vgm->configured_elog_ring_size &&
+ vgm->configured_elog_ring_size != vgm->elog_main.event_ring_size)
+ elog_resize (&vgm->elog_main, vgm->configured_elog_ring_size);
+ vl_api_set_elog_main (vlib_get_elog_main ());
+ (void) vl_api_set_elog_trace_api_messages (1);
/* Default name. */
- if (!vm->name)
- vm->name = "VLIB";
+ if (!vgm->name)
+ vgm->name = "VLIB";
if ((error = vlib_physmem_init (vm)))
{
goto done;
}
- if ((error = vlib_buffer_main_init (vm)))
+ if ((error = vlib_log_init (vm)))
{
clib_error_report (error);
goto done;
}
- if ((error = vlib_thread_init (vm)))
+ if ((error = vlib_stats_init (vm)))
+ {
+ clib_error_report (error);
+ goto done;
+ }
+
+ if ((error = vlib_buffer_main_init (vm)))
{
clib_error_report (error);
goto done;
}
- if ((error = vlib_map_stat_segment_init (vm)))
+ if ((error = vlib_thread_init (vm)))
{
clib_error_report (error);
goto done;
}
+ /* Register node ifunction variants */
+ vlib_register_all_node_march_variants (vm);
+
/* Register static nodes so that init functions may use them. */
vlib_register_all_static_nodes (vm);
}
/* See unix/main.c; most likely already set up */
- if (vm->init_functions_called == 0)
- vm->init_functions_called = hash_create (0, /* value bytes */ 0);
+ if (vgm->init_functions_called == 0)
+ vgm->init_functions_called = hash_create (0, /* value bytes */ 0);
if ((error = vlib_call_all_init_functions (vm)))
goto done;
- /* Create default buffer free list. */
- vlib_buffer_create_free_list (vm, VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES,
- "default");
-
nm->timing_wheel = clib_mem_alloc_aligned (sizeof (TWT (tw_timer_wheel)),
CLIB_CACHE_LINE_BYTES);
vec_validate (nm->data_from_advancing_timing_wheel, 10);
- _vec_len (nm->data_from_advancing_timing_wheel) = 0;
+ vec_set_len (nm->data_from_advancing_timing_wheel, 0);
/* Create the process timing wheel */
TW (tw_timer_wheel_init) ((TWT (tw_timer_wheel) *) nm->timing_wheel,
~0 /* max expirations per call */ );
vec_validate (vm->pending_rpc_requests, 0);
- _vec_len (vm->pending_rpc_requests) = 0;
+ vec_set_len (vm->pending_rpc_requests, 0);
vec_validate (vm->processing_rpc_requests, 0);
- _vec_len (vm->processing_rpc_requests) = 0;
+ vec_set_len (vm->processing_rpc_requests, 0);
- switch (clib_setjmp (&vm->main_loop_exit, VLIB_MAIN_LOOP_EXIT_NONE))
+ /* Default params for the buffer allocator fault injector, if configured */
+ if (VLIB_BUFFER_ALLOC_FAULT_INJECTOR > 0)
{
- case VLIB_MAIN_LOOP_EXIT_NONE:
- vm->main_loop_exit_set = 1;
- break;
-
- case VLIB_MAIN_LOOP_EXIT_CLI:
- goto done;
-
- default:
- error = vm->main_loop_error;
- goto done;
+ vm->buffer_alloc_success_seed = 0xdeaddabe;
+ vm->buffer_alloc_success_rate = 0.80;
}
if ((error = vlib_call_all_config_functions (vm, input, 0 /* is_early */ )))
goto done;
+ /*
+ * Use exponential smoothing, with a half-life of 1 second
+ * reported_rate(t) = reported_rate(t-1) * K + rate(t)*(1-K)
+ *
+ * Sample every 20ms, aka 50 samples per second
+ * K = exp (-1.0/20.0);
+ * K = 0.95
+ */
+ vm->damping_constant = exp (-1.0 / 20.0);
+
+ /* Sort per-thread init functions before we start threads */
+ vlib_sort_init_exit_functions (&vgm->worker_init_function_registrations);
+
/* Call all main loop enter functions. */
{
clib_error_t *sub_error;
clib_error_report (sub_error);
}
+ switch (clib_setjmp (&vm->main_loop_exit, VLIB_MAIN_LOOP_EXIT_NONE))
+ {
+ case VLIB_MAIN_LOOP_EXIT_NONE:
+ vm->main_loop_exit_set = 1;
+ break;
+
+ case VLIB_MAIN_LOOP_EXIT_CLI:
+ goto done;
+
+ default:
+ error = vm->main_loop_error;
+ goto done;
+ }
+
vlib_main_loop (vm);
done:
+ vlib_worker_thread_barrier_sync (vm);
/* Call all exit functions. */
{
clib_error_t *sub_error;
if (sub_error)
clib_error_report (sub_error);
}
+ vlib_worker_thread_barrier_release (vm);
if (error)
clib_error_report (error);
- return 0;
+ return vm->main_loop_exit_status;
}
-static inline clib_error_t *
-pcap_dispatch_trace_command_internal (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd, int rx_tx)
+vlib_main_t *
+vlib_get_main_not_inline (void)
{
-#define PCAP_DEF_PKT_TO_CAPTURE (100)
-
- unformat_input_t _line_input, *line_input = &_line_input;
- pcap_main_t *pm = &vm->dispatch_pcap_main;
- u8 *filename;
- u8 *chroot_filename = 0;
- u32 max = 0;
- int enabled = 0;
- int errorFlag = 0;
- clib_error_t *error = 0;
-
- /* Get a line of input. */
- if (!unformat_user (input, unformat_line_input, line_input))
- return 0;
-
- while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (line_input, "on"))
- {
- if (vm->dispatch_pcap_enable == 0)
- {
- enabled = 1;
- }
- else
- {
- vlib_cli_output (vm, "pcap dispatch capture already on...");
- errorFlag = 1;
- break;
- }
- }
- else if (unformat (line_input, "off"))
- {
- if (vm->dispatch_pcap_enable)
- {
- vlib_cli_output
- (vm, "captured %d pkts...", pm->n_packets_captured);
- if (pm->n_packets_captured)
- {
- pm->n_packets_to_capture = pm->n_packets_captured;
- error = pcap_write (pm);
- if (error)
- clib_error_report (error);
- else
- vlib_cli_output (vm, "saved to %s...", pm->file_name);
- }
- vm->dispatch_pcap_enable = 0;
- }
- else
- {
- vlib_cli_output (vm, "pcap tx capture already off...");
- errorFlag = 1;
- break;
- }
- }
- else if (unformat (line_input, "max %d", &max))
- {
- if (vm->dispatch_pcap_enable)
- {
- vlib_cli_output
- (vm,
- "can't change max value while pcap tx capture active...");
- errorFlag = 1;
- break;
- }
- pm->n_packets_to_capture = max;
- }
- else if (unformat (line_input, "file %s", &filename))
- {
- if (vm->dispatch_pcap_enable)
- {
- vlib_cli_output
- (vm, "can't change file while pcap tx capture active...");
- errorFlag = 1;
- break;
- }
-
- /* Brain-police user path input */
- if (strstr ((char *) filename, "..")
- || index ((char *) filename, '/'))
- {
- vlib_cli_output (vm, "illegal characters in filename '%s'",
- filename);
- vlib_cli_output (vm, "Hint: .. and / are not allowed.");
- vec_free (filename);
- errorFlag = 1;
- break;
- }
-
- chroot_filename = format (0, "/tmp/%s%c", filename, 0);
- vec_free (filename);
- }
- else if (unformat (line_input, "status"))
- {
- if (vm->dispatch_pcap_enable)
- {
- vlib_cli_output
- (vm, "pcap dispatch capture is on: %d of %d pkts...",
- pm->n_packets_captured, pm->n_packets_to_capture);
- vlib_cli_output (vm, "Capture to file %s", pm->file_name);
- }
- else
- {
- vlib_cli_output (vm, "pcap dispatch capture is off...");
- }
- break;
- }
-
- else
- {
- error = clib_error_return (0, "unknown input `%U'",
- format_unformat_error, line_input);
- errorFlag = 1;
- break;
- }
- }
- unformat_free (line_input);
-
-
- if (errorFlag == 0)
- {
- /* Since no error, save configured values. */
- if (chroot_filename)
- {
- if (pm->file_name)
- vec_free (pm->file_name);
- vec_add1 (chroot_filename, 0);
- pm->file_name = (char *) chroot_filename;
- }
-
- if (max)
- pm->n_packets_to_capture = max;
-
- if (enabled)
- {
- if (pm->file_name == 0)
- pm->file_name = (char *) format (0, "/tmp/dispatch.pcap%c", 0);
-
- pm->n_packets_captured = 0;
- pm->packet_type = PCAP_PACKET_TYPE_user13;
- if (pm->lock == 0)
- clib_spinlock_init (&(pm->lock));
- vm->dispatch_pcap_enable = 1;
- vlib_cli_output (vm, "pcap dispatch capture on...");
- }
- }
- else if (chroot_filename)
- vec_free (chroot_filename);
-
- return error;
+ return vlib_get_main ();
}
-static clib_error_t *
-pcap_dispatch_trace_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+elog_main_t *
+vlib_get_elog_main_not_inline ()
{
- return pcap_dispatch_trace_command_internal (vm, input, cmd, VLIB_RX);
+ return &vlib_global_main.elog_main;
}
-/*?
- * This command is used to start or stop pcap dispatch trace capture, or show
- * the capture status.
- *
- * This command has the following optional parameters:
- *
- * - <b>on|off</b> - Used to start or stop capture.
- *
- * - <b>max <nn></b> - Depth of local buffer. Once '<em>nn</em>' number
- * of packets have been received, buffer is flushed to file. Once another
- * '<em>nn</em>' number of packets have been received, buffer is flushed
- * to file, overwriting previous write. If not entered, value defaults
- * to 100. Can only be updated if packet capture is off.
- *
- * - <b>file <name></b> - Used to specify the output filename. The file will
- * be placed in the '<em>/tmp</em>' directory, so only the filename is
- * supported. Directory should not be entered. If file already exists, file
- * will be overwritten. If no filename is provided, '<em>/tmp/vpe.pcap</em>'
- * will be used. Can only be updated if packet capture is off.
- *
- * - <b>status</b> - Displays the current status and configured attributes
- * associated with a packet capture. If packet capture is in progress,
- * '<em>status</em>' also will return the number of packets currently in
- * the local buffer. All additional attributes entered on command line
- * with '<em>status</em>' will be ignored and not applied.
- *
- * @cliexpar
- * Example of how to display the status of capture when off:
- * @cliexstart{pcap dispatch trace status}
- * max is 100, for any interface to file /tmp/vpe.pcap
- * pcap dispatch capture is off...
- * @cliexend
- * Example of how to start a dispatch trace capture:
- * @cliexstart{pcap dispatch trace on max 35 file dispatchTrace.pcap}
- * pcap dispatc capture on...
- * @cliexend
- * Example of how to display the status of a tx packet capture in progress:
- * @cliexstart{pcap tx trace status}
- * max is 35, dispatch trace to file /tmp/vppTest.pcap
- * pcap tx capture is on: 20 of 35 pkts...
- * @cliexend
- * Example of how to stop a tx packet capture:
- * @cliexstart{vppctl pcap dispatch trace off}
- * captured 21 pkts...
- * saved to /tmp/dispatchTrace.pcap...
- * @cliexend
-?*/
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (pcap_dispatch_trace_command, static) = {
- .path = "pcap dispatch trace",
- .short_help =
- "pcap dispatch trace [on|off] [max <nn>] [file <name>] [status]",
- .function = pcap_dispatch_trace_command_fn,
-};
-/* *INDENT-ON* */
+void
+vlib_exit_with_status (vlib_main_t *vm, int status)
+{
+ vm->main_loop_exit_status = status;
+ __atomic_store_n (&vm->main_loop_exit_now, 1, __ATOMIC_RELEASE);
+}
/*
* fd.io coding-style-patch-verification: ON
Code Review / vpp.git / blobdiff