netdev - Re: [PATCH 7/7] sh_eth: offload RX checksum on SH7763

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Message-ID: <a7938d32-24bf-146a-87ea-62b765b0337a@cogentembedded.com>
Date:   Mon, 4 Feb 2019 18:17:21 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:     Rob Landley <rob@...dley.net>, netdev@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>
Cc:     linux-renesas-soc@...r.kernel.org, linux-sh@...r.kernel.org
Subject: Re: [PATCH 7/7] sh_eth: offload RX checksum on SH7763

Hello!

On 02/04/2019 02:55 PM, Rob Landley wrote:

>> The SH7763 SoC manual describes the Ether MAC's RX checksum offload
>> the same way as it's implemented in the EtherAVB MACs...
>>
>> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
> 
> I think this is the chip in the JCI N40 on my desk, how would I test this and
> tell it was working? (Is there an existing test program or...?)

   There are programs, yes. I used (rather old) netperf-2.2pl4 (I can send it to
you) running under perf (provided by the Poky rootfs). The details running netperf
on target are in the patch description #2; on host you just run netserver from that
same testsuite. The current netperf is maintained by HP on github but I was unable
to figure out how to build it quickly enough... :-)

> Also, can this be tested under QEMU's r2 board emulation?

   I have no idea, sorry.

> Rob

MBR, Sergei