> -----Original Message-----
> From: Sivaprasad Tummala <sivaprasad.tumm...@amd.com>
> Sent: Monday, September 25, 2023 4:10 PM
> To: bruce.richard...@intel.com; konstantin.v.anan...@yandex.ru
> Cc: dev@dpdk.org; Sivaprasad Tummala <sivaprasad.tumm...@amd.com>
> Subject: [PATCH] config/x86: config support for AMD EPYC processors
>
> From: Sivaprasad Tummala <sivaprasad.tumm...@amd.com>
>
> By default, max lcores are limited to 128 for x86 platforms.
> On AMD EPYC processors, this limit needs to be increased to
> leverage all the cores.
>
> The patch adjusts the limit specifically for native compilation
> on AMD EPYC CPUs.
>
> Signed-off-by: Sivaprasad Tummala <sivaprasad.tumm...@amd.com>
> ---
> config/x86/meson.build | 17 +++++++++++++++++
> 1 file changed, 17 insertions(+)
>
> diff --git a/config/x86/meson.build b/config/x86/meson.build
> index d8ef50fb40..5355731cef 100644
> --- a/config/x86/meson.build
> +++ b/config/x86/meson.build
> @@ -83,4 +83,21 @@ endif
>
> dpdk_conf.set('RTE_CACHE_LINE_SIZE', 64)
> dpdk_conf.set('RTE_MAX_LCORE', 128)
> +
> +epyc_zen_cores = {
> + '__znver4__':512,
> + '__znver3__':256,
> + '__znver2__':256,
> + '__znver1__':128
> + }
> +
> +if get_option('platform') == 'native'
> + foreach m:epyc_zen_cores.keys()
> + if cc.get_define(m, args: machine_args) != ''
> + dpdk_conf.set('RTE_MAX_LCORE', epyc_zen_cores[m])
> + break
> + endif
> + endforeach
> +endif
> +
> dpdk_conf.set('RTE_MAX_NUMA_NODES', 32)
> --
Acked-by: Konstantin Ananyev <konstantin.anan...@huawei.com>
> 2.34.1
