scsi passthrough in pvops kernel

scsi passthrough in pvops kernel

[James Harper]

pvscsi appears to be missing from the pvops kernel. Is there a specific
reason for this or has it just not been done yet?

James

Re: scsi passthrough in pvops kernel

[Konrad Rzeszutek Wilk]

On Thu, Sep 24, 2009 at 01:41:13PM +1000, James Harper wrote:
> pvscsi appears to be missing from the pvops kernel. Is there a specific
> reason for this or has it just not been done yet?

Not done yet. You volunteering for it :-)
> 
> James
> 
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RE: scsi passthrough in pvops kernel

[James Harper]

> 
> On Thu, Sep 24, 2009 at 01:41:13PM +1000, James Harper wrote:
> > pvscsi appears to be missing from the pvops kernel. Is there a
specific
> > reason for this or has it just not been done yet?
> 
> Not done yet. You volunteering for it :-)

I can probably make it compile (just did with pvusb :) but can't test it
too thoroughly at this point.

James

Re: scsi passthrough in pvops kernel

[Jeremy Fitzhardinge]

On 09/24/09 05:58, James Harper wrote:
>> Not done yet. You volunteering for it :-)
>>     
> I can probably make it compile (just did with pvusb :) but can't test it
> too thoroughly at this point.
>   

Do you have some pvusb patches for me?  Send them over and I'll stick
them in.

    J

RE: scsi passthrough in pvops kernel

[James Harper]

> 
> On 09/24/09 05:58, James Harper wrote:
> >> Not done yet. You volunteering for it :-)
> >>
> > I can probably make it compile (just did with pvusb :) but can't
test it
> > too thoroughly at this point.
> >
> 
> Do you have some pvusb patches for me?  Send them over and I'll stick
> them in.
> 

Noboru sent me a pre-release copy of his next release. He will be
officially releasing sometime soon so I'll wait until then if he hasn't
ported them already. With my updates the drivers compile under the pvops
kernel but they call usb_buffer_free with interrupts disabled and
dma_free_coherent doesn't like it (billions of warnings logged).

Are you interested in putting in usbback (and scsiback - I'll do that
shortly if nobody else does) without the corresponding frontend drivers?
My main focus is the Windows GPLPV frontend drivers so the Linux
frontend drivers aren't a priority for me at this point... I can
probably convert scsifront as scsi drivers are pretty basic but a lot of
this usb stuff still baffles me :)

James

Re: scsi passthrough in pvops kernel

[Jeremy Fitzhardinge]

On 09/24/09 15:25, James Harper wrote:
> Noboru sent me a pre-release copy of his next release. He will be
> officially releasing sometime soon so I'll wait until then if he hasn't
> ported them already. With my updates the drivers compile under the pvops
> kernel but they call usb_buffer_free with interrupts disabled and
> dma_free_coherent doesn't like it (billions of warnings logged).
>   

Yes, sounds like that ought to be fixed.

> Are you interested in putting in usbback (and scsiback - I'll do that
> shortly if nobody else does) without the corresponding frontend drivers?
> My main focus is the Windows GPLPV frontend drivers so the Linux
> frontend drivers aren't a priority for me at this point... I can
> probably convert scsifront as scsi drivers are pretty basic but a lot of
> this usb stuff still baffles me :)

Sure.  I can stick them on their own branch if they're not really ready
for general use.

    J

Re: scsi passthrough in pvops kernel

[Pasi Kärkkäinen]

On Thu, Sep 24, 2009 at 04:29:54PM -0700, Jeremy Fitzhardinge wrote:
> On 09/24/09 15:25, James Harper wrote:
> > Noboru sent me a pre-release copy of his next release. He will be
> > officially releasing sometime soon so I'll wait until then if he hasn't
> > ported them already. With my updates the drivers compile under the pvops
> > kernel but they call usb_buffer_free with interrupts disabled and
> > dma_free_coherent doesn't like it (billions of warnings logged).
> >   
> 
> Yes, sounds like that ought to be fixed.
> 
> > Are you interested in putting in usbback (and scsiback - I'll do that
> > shortly if nobody else does) without the corresponding frontend drivers?
> > My main focus is the Windows GPLPV frontend drivers so the Linux
> > frontend drivers aren't a priority for me at this point... I can
> > probably convert scsifront as scsi drivers are pretty basic but a lot of
> > this usb stuff still baffles me :)
> 
> Sure.  I can stick them on their own branch if they're not really ready
> for general use.
> 

It seems Debian might be shipping pv_ops dom0 kernel in their next
stable release (squeeze), if I understood things correctly.

Would be good to have these features in the pvops dom0 tree..

-- Pasi

Re: scsi passthrough in pvops kernel

[Pasi Kärkkäinen]

On Fri, Sep 25, 2009 at 08:25:49AM +1000, James Harper wrote:
> > 
> > On 09/24/09 05:58, James Harper wrote:
> > >> Not done yet. You volunteering for it :-)
> > >>
> > > I can probably make it compile (just did with pvusb :) but can't
> test it
> > > too thoroughly at this point.
> > >
> > 
> > Do you have some pvusb patches for me?  Send them over and I'll stick
> > them in.
> > 
> 
> Noboru sent me a pre-release copy of his next release. He will be
> officially releasing sometime soon so I'll wait until then if he hasn't
> ported them already. With my updates the drivers compile under the pvops
> kernel but they call usb_buffer_free with interrupts disabled and
> dma_free_coherent doesn't like it (billions of warnings logged).
> 
> Are you interested in putting in usbback (and scsiback - I'll do that
> shortly if nobody else does) without the corresponding frontend drivers?
> My main focus is the Windows GPLPV frontend drivers so the Linux
> frontend drivers aren't a priority for me at this point... I can
> probably convert scsifront as scsi drivers are pretty basic but a lot of
> this usb stuff still baffles me :)
> 

Did you have time to take a look at usbback/scsiback? :)

-- Pasi