[PATCH] config/x86: config support for AMD EPYC processors

[Thomas Monjalon]

25/09/2023 17:10, Sivaprasad Tummala:
> From: Sivaprasad Tummala <Sivaprasad.Tummala at 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.Tummala at amd.com>
> ---
> +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

Acked-by: Konstantin Ananyev <konstantin.ananyev at huawei.com>
Acked-by: Morten Brørup <mb at smartsharesystems.com>

Agreed in techboard:
https://mails.dpdk.org/archives/dev/2023-October/279672.html)

Applied, thanks.