Re: [PATCH v15 4/6] arm64: Add config for AMD Pensando SoC platforms

From: Jonathan Neuschäfer
Date: Mon Aug 14 2023 - 04:42:52 EST


On Fri, Aug 11, 2023 at 11:05:17AM -0700, Brad Larson wrote:
> Add ARCH_PENSANDO configuration option for AMD Pensando SoC
> based platforms.
>
> Signed-off-by: Brad Larson <blarson@xxxxxxx>
> ---
[...]
> +config ARCH_PENSANDO
> + bool "AMD Pensando Platforms"
> + help
> + This enables support for the ARMv8 based AMD Pensando SoC
> + family to include the Elba SoC.
> +
> + AMD Pensando SoCs support a range of Distributed Services
> + Cards in PCIe format installed into servers. The Elba
> + SoC includes 16 A-72 CPU cores, 144 programmable P4
> + cores for a minimal latency/jitter datapath, and network

Out of curiosity, what are A-72 and P4?

A-72 sounds like Arm Cortex A-72, P4 seems to refer to the P4
programming language (https://opennetworking.org/p4/).

Perhaps something like:

+ Cards in PCIe format installed into servers. The Elba
+ SoC includes 16 Cortex A-72 CPU cores, 144 P4-programmable
+ cores for a minimal latency/jitter datapath, and network


Best regards,
Jonathan

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