diff options
| author |   Benoît Ganne <bganne@cisco.com> | 2020-06-15 12:24:36 +0200 |
|---|---|---|
| committer |   Damjan Marion <dmarion@me.com> | 2020-06-15 14:52:04 +0000 |
| commit | c16fe4689055242c64c71d83e41908a8fb6c2726 (patch) | |
| tree | 902da3f5a63a447491c57ae9cf716eeec0a9390c | |
| parent | b43677fe2d449fa1dadd47710ca8c9057da58e2a (diff) | |
buffers: fix non-default sized buffers initialization
Type: fix
Change-Id: I4a93e1d9936414c514cb237a22624986b3ef5b3d
Signed-off-by: Benoît Ganne <bganne@cisco.com>
| -rw-r--r-- | src/vlib/buffer.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/src/vlib/buffer.c b/src/vlib/buffer.c index f5b813793a3..a645438640a 100644 --- a/src/vlib/buffer.c +++ b/src/vlib/buffer.c @@ -504,6 +504,13 @@ vlib_buffer_chain_append_data_with_alloc (vlib_main_t * vm, return copied; } +static uword +vlib_buffer_alloc_size (uword ext_hdr_size, uword data_size) +{ + return CLIB_CACHE_LINE_ROUND (ext_hdr_size + sizeof (vlib_buffer_t) + + data_size); +} + u8 vlib_buffer_pool_create (vlib_main_t * vm, char *name, u32 data_size, u32 physmem_map_index) @@ -559,7 +566,7 @@ vlib_buffer_pool_create (vlib_main_t * vm, char *name, u32 data_size, vec_validate_aligned (bp->threads, vec_len (vlib_mains) - 1, CLIB_CACHE_LINE_BYTES); - alloc_size = data_size + sizeof (vlib_buffer_t) + bm->ext_hdr_size; + alloc_size = vlib_buffer_alloc_size (bm->ext_hdr_size, data_size); n_alloc_per_page = (1ULL << m->log2_page_size) / alloc_size; /* preallocate buffer indices memory */ @@ -680,10 +687,9 @@ vlib_buffer_main_init_numa_node (struct vlib_main_t *vm, u32 numa_node, u32 physmem_map_index; uword n_pages, pagesize; u32 buffers_per_numa; - u32 buffer_size = CLIB_CACHE_LINE_ROUND (bm->ext_hdr_size + - sizeof (vlib_buffer_t) + - vlib_buffer_get_default_data_size - (vm)); + u32 buffer_size = vlib_buffer_alloc_size (bm->ext_hdr_size, + vlib_buffer_get_default_data_size + (vm)); u8 *name; pagesize = clib_mem_get_default_hugepage_size (); @@ -693,6 +699,16 @@ vlib_buffer_main_init_numa_node (struct vlib_main_t *vm, u32 numa_node, VLIB_BUFFER_DEFAULT_BUFFERS_PER_NUMA; retry: + + if (buffer_size > pagesize) + { + error = + clib_error_return (0, + "buffer size (%llu) is greater than page size (%llu)", + buffer_size, pagesize); + goto done; + } + n_pages = (buffers_per_numa - 1) / (pagesize / buffer_size) + 1; error = vlib_physmem_shared_map_create (vm, (char *) name, n_pages * pagesize, |