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Date:   Mon, 4 Feb 2019 18:17:21 +0300
From:   Sergei Shtylyov <>
To:     Rob Landley <>,,
        "David S. Miller" <>
Subject: Re: [PATCH 7/7] sh_eth: offload RX checksum on SH7763


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 <>
> 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

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