Subject: Re: [PATCH net 1/1] net: stmmac: disable Split Header (SPH) for Intel platforms

From: Kurt Kanzenbach <[email-masked]>
Date: Tue, 26 Apr 2022 15:58:56 +0200

Hi,

On Tue Apr 26 2022, Tan Tee Min wrote:
> Based on DesignWare Ethernet QoS datasheet, we are seeing the limitation
> of Split Header (SPH) feature is not supported for Ipv4 fragmented packet.
> This SPH limitation will cause ping failure when the packets size exceed
> the MTU size. For example, the issue happens once the basic ping packet
> size is larger than the configured MTU size and the data is lost inside
> the fragmented packet, replaced by zeros/corrupted values, and leads to
> ping fail.
>
> So, disable the Split Header for Intel platforms.

Does this issue only apply on Intel platforms?

Thanks,
Kurt