no scsi in 2.6.7-xenU?

no scsi in 2.6.7-xenU?

[James Harper]

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There is no CONFIG_SCSI to enable in xenU. Is there any reason for this? I want to try out iSCSI and obviously it needs scsi support. Or would I be better doing it in dom0 and exporting it?

thanks

James 

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RE: no scsi in 2.6.7-xenU?

[James Harper]

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my bad, i think. Do I need to enable device drivers in xenU?



From: James Harper
Sent: Fri 20/08/2004 2:21 PM
To: xen-devel@lists.sourceforge.net
Subject: [Xen-devel] no scsi in 2.6.7-xenU?


There is no CONFIG_SCSI to enable in xenU. Is there any reason for this? I want to try out iSCSI and obviously it needs scsi support. Or would I be better doing it in dom0 and exporting it?

thanks

James 

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Re: no scsi in 2.6.7-xenU?

[Flavio Leitner]

On Fri, Aug 20, 2004 at 03:44:49PM +1000, James Harper wrote:
> 
>    my bad, i think. Do I need to enable device drivers in xenU?

afaik, -xenU access a generic block device exported by xen0, then
you don't need scsi drivers on xenU.



-- 
Flávio Bruno Leitner <fbl@conectiva.com.br>
[ E74B 0BD0 5E05 C385 239E  531C BC17 D670 7FF0 A9E0 ]


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RE: no scsi in 2.6.7-xenU?

[James Harper]

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i need it if I want to support iSCSI (SCSI over tcp/ip)



From: Flavio Leitner
Sent: Sat 21/08/2004 12:04 AM
To: James Harper
Cc: xen-devel@lists.sourceforge.net
Subject: Re: [Xen-devel] no scsi in 2.6.7-xenU?


On Fri, Aug 20, 2004 at 03:44:49PM +1000, James Harper wrote:
> 
>    my bad, i think. Do I need to enable device drivers in xenU?

afaik, -xenU access a generic block device exported by xen0, then
you don't need scsi drivers on xenU.



-- 
Flávio Bruno Leitner <fbl@conectiva.com.br>
[ E74B 0BD0 5E05 C385 239E  531C BC17 D670 7FF0 A9E0 ]

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Re: no scsi in 2.6.7-xenU?

[Ian Pratt]

> i need it if I want to support iSCSI (SCSI over tcp/ip)

James, 

I've modified the 2.6.7 Kconfig file to enable SCSI and SCSI_DISK
to be enabled even if PHYSDEV_ACCESS is not set.  A side effect
of this is that its now possible to select and build in scsi
low-level drivers in an build without PHYSDEV_ACCESS, which won't
work and will likely lead to people getting
confused. Unfortunately its not possible to fix this without
absolutely peppering the Kconfig files with gating on
PHYSDEV_ACCESS. 

BTW: I've had cisco iscsi 4.0.1.8 working fine with 2.6.7 without
modifications. We decided it was easier to workaround the issue
with ENABLE_CLUSTERING than get the change made to the iscsi
code. The workaround will probably help some other drivers too.

Ian


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