Re: [PATCH 2/2] [SCSI] ibmvscsi: Fix SCSI scanning

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On 06/20/2011 12:58 PM, Bart Van Assche wrote:
> On Mon, Jun 20, 2011 at 1:40 PM, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote:
>> On Sun, Jun 19, 2011 at 01:48:40PM +0200, Bart Van Assche wrote:
>>> Avoid that SCSI scanning triggers creation of targets with a non-zero
>>> channel number.
>>
>> Same comment as for the SRP one applies here as well.
> 
> If no kernel module parameters have been specified, max_channel is set
> to three in the ibmvscsi driver. It's not clear to me why.

It could be set as high as 16 in order to support the full 3 bits worth
of bus values as defined in Logical Unit Addressing model in SAM, but
3 is generally sufficient for most users as it allows for 64 targets *
3 buses = 192 virtual scsi targets.

Thanks,

Brian

-- 
Brian King
Linux on Power Virtualization
IBM Linux Technology Center


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