From: Luke Gorrie <luke@snabb.co>
To: Anshul Makkar <anshul.makkar@profitbricks.com>
Cc: qemu-devel <qemu-devel@nongnu.org>,
Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>
Subject: Re: [Qemu-devel] directly inject packet in vrings and not use NetClient APIs
Date: Wed, 19 Nov 2014 18:39:38 +0100 [thread overview]
Message-ID: <CAA2XHbdLQdStDqR0-COVD7sd3e-hphyjVJVx-mso3OdRDnLPrA@mail.gmail.com> (raw)
In-Reply-To: <CAM4NYE-WSdZBF==N=add42sXx8TMom+5wGo4g_Mwn3zSDT1cvw@mail.gmail.com>
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Hi Anshul,
On Wednesday, November 19, 2014, Anshul Makkar <
anshul.makkar@profitbricks.com> wrote:
>
>
> I have implemented a usermode app that is using vhost-user backend and
> gets direct access to the guest vrings. I am able to receive packets but
> when I post directly to vring and issue kick, packets fails to reach the
> guest. (ifconfig eth0 RX counter is unchanged. tcpdump also doesn't detect
> any packets.) .
>
Sounds to me like something that should work.
I'd suggest debug-compiling the virtio-net driver in the guest to see why
it doesn't take the packet. Gets the kick? Processes the used ring? MAC
address is accepted? Etc. That has been the most productive approach for me.
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next prev parent reply other threads:[~2014-11-19 17:39 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-19 15:53 [Qemu-devel] directly inject packet in vrings and not use NetClient APIs Anshul Makkar
2014-11-19 17:39 ` Luke Gorrie [this message]
2014-11-19 21:42 ` Anshul Makkar
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