From: Venkateswara Rao Dokku <dvrao.584@gmail.com>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] Regarding MMIO
Date: Mon, 5 Oct 2015 10:10:32 +0530 [thread overview]
Message-ID: <CACiOAOA=wPuf_3vUN6b5afw1=Q3TZE+q4nyYjKqdC-e6dH7O+g@mail.gmail.com> (raw)
In-Reply-To: <20151001074228.6c980c96@urahara>
Thanks for the response Stephen.
Are you referring to Virt-IO 0.9 in specific here in the response or for
any Virt-IO versions in general?
On Thu, Oct 1, 2015 at 8:12 PM, Stephen Hemminger <
stephen@networkplumber.org> wrote:
> On Thu, 1 Oct 2015 09:51:42 +0530
> Venkateswara Rao Dokku <dvrao.584@gmail.com> wrote:
>
> > Hi,
> >
> > If we go through the DPDK code it is observed that we are using MMIO for
> > Virt-IO devices. But in the Virt-IO specification, it is written that
> from
> > Virt-IO 1.0 onwards only they are supporting MMIO, all previous versions
> > uses Port IO for RX/TX notifications.
> >
> > So, If I use VirtIO 0.9, Can I get the MMIO based notifications for RX/TX
> > or is it supported only for Virt-IO 1.0 onwards?
> >
>
> Although the virtio device will bind to the mmio address in some cases,
> it does not use that. It uses i/o port access (see iopl) to activate
> host.
>
--
Thanks & Regards,
Venkateswara Rao Dokku.
next prev parent reply other threads:[~2015-10-05 4:40 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CACiOAOAJ-aK02yrMC6m8knMdR7gTscRYF7m8Sqh1E4k4=CrwCA@mail.gmail.com>
2015-10-01 14:42 ` Stephen Hemminger
2015-10-05 4:40 ` Venkateswara Rao Dokku [this message]
2015-10-05 13:39 ` Xie, Huawei
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