linux-kernel - Re: [PATCH 0/7] AlacrityVM guest drivers Reply-To:

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Message-ID: <20090806101702.GA10605@redhat.com>
Date:	Thu, 6 Aug 2009 13:17:02 +0300
From:	"Michael S. Tsirkin" <mst@...hat.com>
To:	Gregory Haskins <ghaskins@...ell.com>
Cc:	linux-kernel@...r.kernel.org,
	alacrityvm-devel@...ts.sourceforge.net, netdev@...r.kernel.org,
	kvm@...r.kernel.org
Subject: Re: [PATCH 0/7] AlacrityVM guest drivers Reply-To:

On Thu, Aug 06, 2009 at 11:19:56AM +0300, Michael S. Tsirkin wrote:
> On Mon, Aug 03, 2009 at 01:17:30PM -0400, Gregory Haskins wrote:
> > (Applies to v2.6.31-rc5, proposed for linux-next after review is complete)
> 
> These are guest drivers, right? Merging the guest first means relying on
> kernel interface from an out of tree driver, which well might change
> before it goes in.  Would it make more sense to start merging with the
> host side of the project?
> 
> > This series implements the guest-side drivers for accelerated IO
> > when running on top of the AlacrityVM hypervisor, the details of
> > which you can find here:
> > 
> > http://developer.novell.com/wiki/index.php/AlacrityVM
> 
> Since AlacrityVM is kvm based, Cc kvm@...r.kernel.org.
> 
> > This series includes the basic plumbing, as well as the driver for
> > accelerated 802.x (ethernet) networking.
> 
> The graphs comparing virtio with vbus look interesting.
> However, they do not compare apples to apples, do they?
> These compare userspace virtio with kernel vbus, where for
> apples to apples comparison one would need to compare
> kernel virtio with kernel vbus. Right?

Or userspace virtio with userspace vbus.

> > Regards,
> > -Greg
> > 
> > ---
> > 
> > Gregory Haskins (7):
> >       venet: add scatter-gather/GSO support
> >       net: Add vbus_enet driver
> >       ioq: add driver-side vbus helpers
> >       vbus-proxy: add a pci-to-vbus bridge
> >       vbus: add a "vbus-proxy" bus model for vbus_driver objects
> >       ioq: Add basic definitions for a shared-memory, lockless queue
> >       shm-signal: shared-memory signals
> > 
> > 
> >  arch/x86/Kconfig            |    2 
> >  drivers/Makefile            |    1 
> >  drivers/net/Kconfig         |   14 +
> >  drivers/net/Makefile        |    1 
> >  drivers/net/vbus-enet.c     |  899 +++++++++++++++++++++++++++++++++++++++++++
> >  drivers/vbus/Kconfig        |   24 +
> >  drivers/vbus/Makefile       |    6 
> >  drivers/vbus/bus-proxy.c    |  216 ++++++++++
> >  drivers/vbus/pci-bridge.c   |  824 +++++++++++++++++++++++++++++++++++++++
> >  include/linux/Kbuild        |    4 
> >  include/linux/ioq.h         |  415 ++++++++++++++++++++
> >  include/linux/shm_signal.h  |  189 +++++++++
> >  include/linux/vbus_driver.h |   80 ++++
> >  include/linux/vbus_pci.h    |  127 ++++++
> >  include/linux/venet.h       |   84 ++++
> >  lib/Kconfig                 |   21 +
> >  lib/Makefile                |    2 
> >  lib/ioq.c                   |  294 ++++++++++++++
> >  lib/shm_signal.c            |  192 +++++++++
> >  19 files changed, 3395 insertions(+), 0 deletions(-)
> >  create mode 100644 drivers/net/vbus-enet.c
> >  create mode 100644 drivers/vbus/Kconfig
> >  create mode 100644 drivers/vbus/Makefile
> >  create mode 100644 drivers/vbus/bus-proxy.c
> >  create mode 100644 drivers/vbus/pci-bridge.c
> >  create mode 100644 include/linux/ioq.h
> >  create mode 100644 include/linux/shm_signal.h
> >  create mode 100644 include/linux/vbus_driver.h
> >  create mode 100644 include/linux/vbus_pci.h
> >  create mode 100644 include/linux/venet.h
> >  create mode 100644 lib/ioq.c
> >  create mode 100644 lib/shm_signal.c
> > 
> > -- 
> > Signature
> > --
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