summaryrefslogtreecommitdiffstats
path: root/src/vlib/node.c
diff options
context:
space:
mode:
authorDamjan Marion <damarion@cisco.com>2021-12-23 17:05:02 +0100
committerDave Barach <openvpp@barachs.net>2021-12-24 12:44:34 +0000
commitb32bd70c1e83fff90d060ea1bbb41eb55e3f62b1 (patch)
treea4b45589446dd63741fc662e3bab28fd5a81562f /src/vlib/node.c
parent65409fb341c110bf905be0e29833405bb3bbf4e6 (diff)
vlib: introduce vlib frame aux data
Type: improvement Change-Id: I53890a13210cfb0d2b2d9d8cfd9b15118d3bb273 Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vlib/node.c')
-rw-r--r--src/vlib/node.c62
1 files changed, 56 insertions, 6 deletions
diff --git a/src/vlib/node.c b/src/vlib/node.c
index f4329e7c503..41b9ee73be6 100644
--- a/src/vlib/node.c
+++ b/src/vlib/node.c
@@ -333,6 +333,7 @@ register_node (vlib_main_t * vm, vlib_node_registration_t * r)
{
vlib_node_main_t *nm = &vm->node_main;
vlib_node_t *n;
+ u32 size;
int i;
if (CLIB_DEBUG > 0)
@@ -400,13 +401,66 @@ register_node (vlib_main_t * vm, vlib_node_registration_t * r)
_(type);
_(flags);
_(state);
- _(scalar_size);
- _(vector_size);
_(format_buffer);
_(unformat_buffer);
_(format_trace);
_(validate_frame);
+ size = round_pow2 (sizeof (vlib_frame_t), VLIB_FRAME_DATA_ALIGN);
+
+ /* scalar data size */
+ if (r->scalar_size)
+ {
+ n->scalar_offset = size;
+ size += round_pow2 (r->scalar_size, VLIB_FRAME_DATA_ALIGN);
+ }
+ else
+ n->scalar_offset = 0;
+
+ /* Vecor data size */
+ n->vector_offset = size;
+ size += r->vector_size * VLIB_FRAME_SIZE;
+
+ /* Allocate a few extra slots of vector data to support
+ speculative vector enqueues which overflow vector data in next frame. */
+ size += r->vector_size * VLIB_FRAME_SIZE_EXTRA;
+
+ /* space for VLIB_FRAME_MAGIC */
+ n->magic_offset = size;
+ size += sizeof (u32);
+
+ /* round size to VLIB_FRAME_DATA_ALIGN */
+ size = round_pow2 (size, VLIB_FRAME_DATA_ALIGN);
+
+ if (r->aux_size)
+ {
+ n->aux_offset = size;
+ size += r->aux_size * VLIB_FRAME_SIZE;
+ }
+ else
+ n->aux_offset = 0;
+
+ /* final size */
+ n->frame_size = size = round_pow2 (size, CLIB_CACHE_LINE_BYTES);
+ ASSERT (size <= __UINT16_MAX__);
+
+ vlib_frame_size_t *fs = 0;
+
+ n->frame_size_index = (u16) ~0;
+ vec_foreach (fs, nm->frame_sizes)
+ if (fs->frame_size == size)
+ {
+ n->frame_size_index = fs - nm->frame_sizes;
+ break;
+ }
+
+ if (n->frame_size_index == (u16) ~0)
+ {
+ vec_add2 (nm->frame_sizes, fs, 1);
+ fs->frame_size = size;
+ n->frame_size_index = fs - nm->frame_sizes;
+ }
+
/* Register error counters. */
vlib_register_errors (vm, n->index, r->n_errors, r->error_strings,
r->error_counters);
@@ -669,10 +723,6 @@ vlib_node_main_init (vlib_main_t * vm)
vlib_node_t *n;
uword ni;
- nm->frame_sizes = vec_new (vlib_frame_size_t, 1);
-#ifdef VLIB_SUPPORTS_ARBITRARY_SCALAR_SIZES
- nm->frame_size_hash = hash_create (0, sizeof (uword));
-#endif
nm->flags |= VLIB_NODE_MAIN_RUNTIME_STARTED;
/* Generate sibling relationships */