linux-kernel - Re: [PATCH v2] ftgmac100: Disable HW checksum generation on AST2500

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Date:   Sat, 19 Oct 2019 21:25:32 +1100
From:   Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:     Vijay Khemka <vijaykhemka@...com>,
        "David S. Miller" <davem@...emloft.net>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        Sven Van Asbroeck <TheSven73@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Bhupesh Sharma <bhsharma@...hat.com>,
        YueHaibing <yuehaibing@...wei.com>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Cc:     "openbmc @ lists . ozlabs . org" <openbmc@...ts.ozlabs.org>,
        "joel@....id.au" <joel@....id.au>,
        "linux-aspeed@...ts.ozlabs.org" <linux-aspeed@...ts.ozlabs.org>,
        Sai Dasari <sdasari@...com>
Subject: Re: [PATCH v2] ftgmac100: Disable HW checksum generation on AST2500

On Sat, 2019-10-19 at 01:31 +0000, Vijay Khemka wrote:
> Thanks Ben,
> I will try to add some trace and test whatever possible and test it.
> As we
> don't have tcpdump into our image and I have limited understanding of
> networking stack so if you get some time to verify ipv6, it will be
> really
> helpful. 
>     

You only need tcpdump (or wireshark) on the *other end* of the link,
could even be your laptop, to look at what the generated frames look
like and compare with your traces.

Cheers,
Ben.