netdev - Re: [PATCH 7/7] 8139cp: Avoid gratuitous writes to TxPoll register when already running

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Message-ID: <20150921205440.GA4559@electric-eye.fr.zoreil.com>
Date:	Mon, 21 Sep 2015 22:54:40 +0200
From:	Francois Romieu <romieu@...zoreil.com>
To:	David Woodhouse <dwmw2@...radead.org>
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH 7/7] 8139cp: Avoid gratuitous writes to TxPoll register
 when already running

David Woodhouse <dwmw2@...radead.org> :
[...]
> I'm actually having second thoughts about this one since realising that
> QEMU doesn't implement it correctly. The workaround isn't *that* horrid
> but it's not clear it's enough of a performance win — or whether it's
> entirely necessary for catching my TX stall.

It don't indulge in this kind of fetish but I'm fine with people who want
to play with QEMU 8139cp emulation where they could use virtio. They should
imvho realize that it's their job to fix QEMU 8139cp emulation, not the
other way around.

Please keep things sane (*cough*) and avoid the qemu workaround.

-- 
Ueimor
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