netdev - RE: [EXT] Re: [PATCH net-next] net: ethernet: fec: prevent tx starvation under high rx load

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Message-Id: <C3UHDOU16UJF.1HSCO9KJ9CIRG@wkz-x280>
Date:   Tue, 30 Jun 2020 15:45:51 +0200
From:   "Tobias Waldekranz" <tobias@...dekranz.com>
To:     "Andy Duan" <fugang.duan@....com>,
        "David Miller" <davem@...emloft.net>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: RE: [EXT] Re: [PATCH net-next] net: ethernet: fec: prevent tx
 starvation under high rx load

On Tue Jun 30, 2020 at 11:47 AM CEST, Andy Duan wrote:
> Tobias, sorry, I am not running the net tree, I run the linux-imx tree:
> https://source.codeaurora.org/external/imx/linux-imx/refs/heads
> branch：imx_5.4.24_2.1.0
> But the data follow is the same as net tree.

I've now built the same kernel. On this one the issue does not occur,
consistent throughput of ~940Mbps just like you're seeing.

Now moving to mainline 5.4 to rule out any NXP changes first, then
start bisecting.