[PATCH] config/cn10k: align mempool elements to 128 bytes

[Ruifeng Wang]

> -----Original Message-----
> From: pbhagavatula at marvell.com <pbhagavatula at marvell.com>
> Sent: Monday, December 13, 2021 7:06 PM
> To: jerinj at marvell.com; Jan Viktorin <viktorin at rehivetech.com>; Ruifeng
> Wang <Ruifeng.Wang at arm.com>; Bruce Richardson
> <bruce.richardson at intel.com>
> Cc: dev at dpdk.org; Pavan Nikhilesh <pbhagavatula at marvell.com>
> Subject: [PATCH] config/cn10k: align mempool elements to 128 bytes
> 
> From: Pavan Nikhilesh <pbhagavatula at marvell.com>
> 
> Mempool elements are by default aligned to CACHELINE_SIZE.
> In CN10K cacheline size is 64B but the RoC requires buffers to be aligned to
> 128B.
> Set RTE_MEMPOOL_ALIGN to 128 to force mempool buffers to be aligned
> 128 bytes.
> 
> Signed-off-by: Pavan Nikhilesh <pbhagavatula at marvell.com>
> ---
>  config/arm/meson.build | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/config/arm/meson.build b/config/arm/meson.build index
> 213324d262..33afe1a9ad 100644
> --- a/config/arm/meson.build
> +++ b/config/arm/meson.build
> @@ -276,7 +276,8 @@ soc_cn10k = {
>      'implementer' : '0x41',
>      'flags': [
>          ['RTE_MAX_LCORE', 24],
> -        ['RTE_MAX_NUMA_NODES', 1]
> +        ['RTE_MAX_NUMA_NODES', 1],
> +        ['RTE_MEMPOOL_ALIGN', 128]
>      ],
>      'part_number': '0xd49',
>      'extra_march_features': ['crypto'],
> --
> 2.17.1

Reviewed-by: Ruifeng Wang <ruifeng.wang at arm.com>