Re: [Xen-devel] Q on ioctl support in netfront/netback

To:	Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Subject:	Re: [Xen-devel] Q on ioctl support in netfront/netback
From:	ravi kerur <rkerur@xxxxxxxxx>
Date:	Wed, 17 Feb 2010 08:19:14 -0800
Cc:	Paul Durrant <paul.durrant@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
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Hi Konrad,

Using PCI passthrough(I believe it is via config file changes) prevents other domU's accessing the NIC correct? If I use it, would the network transmit/receive still happen via netfront/netback drivers?

Thanks
-RK

On Tue, Feb 16, 2010 at 10:14 AM, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> wrote:

On Mon, Feb 15, 2010 at 07:54:02AM -0800, ravi kerur wrote:
> Paul,
>
> Registers are not in netback, they are h/w registers on NIC and the driver
> supports reads/writes via ioctl calls. Driver is in dom0 and application
> which reads/writes registers is run in domU.

You could use PCI passthrough. This way the NIC would be visible in your
DomU and you could fiddle with the registers.

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Re: [Xen-devel] Q on ioctl support in netfront/netback