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

[Jerin Jacob]

On Tue, Dec 14, 2021 at 2:53 PM Ruifeng Wang <Ruifeng.Wang at arm.com> wrote:
>
> > -----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>

Applied to dpdk-next-net-mrvl/for-next-net. Thanks


Added
    Fixes: 1b4c86a721c9 ("config/arm: add Marvell CN10K")
    Cc: stable at dpdk.org
>