From mboxrd@z Thu Jan  1 00:00:00 1970
From: Carsten Otte <cotte-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
Subject: Re: [PATCH RFC 1/3] virtio infrastructure
Date: Thu, 31 May 2007 14:53:08 +0200
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Cc: Jimi Xenidis <jimix-aZOuKsOsJu3MbYB6QlFGEg@public.gmane.org>,
	Stephen Rothwell <sfr-3FnU+UHB4dNDw9hX6IcOSA@public.gmane.org>,
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	Herbert Xu <herbert-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>,
	kvm-devel <kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>,
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	Suzanne McIntosh <skranjac-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
To: Rusty Russell <rusty-8n+1lVoiYb80n/F98K4Iww@public.gmane.org>
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Rusty Russell wrote:
> This attempts to implement a "virtual I/O" layer which should allow
> common drivers to be efficiently used across most virtual I/O
> mechanisms.  It will no-doubt need further enhancement.
> 
> The details of probing the device are left to hypervisor-specific
> code: it simple constructs the "struct virtio_device" and hands it to
> the probe function (eg. virtnet_probe() or virtblk_probe()).
> 
> The virtio drivers add and detach input and output buffers; as the
> buffers are used up their associated "used" pointers are filled in.
> 
> I have written two virtio device drivers (net and block) and two
> virtio implementations (for lguest): a read-write socket-style
> implementation, and a more efficient descriptor-based implementation).
These should work for s390 afaics. They seem to fit the requirements 
of network IO.

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