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buffers: add compile-time option to set buffer alignment

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Type: improvement
Change-Id: I88c4c45bed0bdd8686e17e4f77a7d32a08c995aa
Signed-off-by: Damjan Marion <damarion@cisco.com>
This commit is contained in:
Damjan Marion
2024-01-19 21:19:57 +01:00
committed by Florin Coras
parent 5840c66bbc
commit 038dad7ef2
5 changed files with 11 additions and 8 deletions
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6
src/vlib/buffer.c
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@ -471,11 +471,7 @@ static uword
vlib_buffer_alloc_size (uword ext_hdr_size, uword data_size)
{
uword alloc_size = ext_hdr_size + sizeof (vlib_buffer_t) + data_size;
alloc_size = CLIB_CACHE_LINE_ROUND (alloc_size);
/* in case when we have even number of cachelines, we add one more for
* better cache occupancy */
alloc_size |= CLIB_CACHE_LINE_BYTES;
alloc_size = round_pow2 (alloc_size, VLIB_BUFFER_ALIGN);
return alloc_size;
}