From: Brian King <brking@linux.vnet.ibm.com>
To: Bart Van Assche <bvanassche@acm.org>
Cc: Christoph Hellwig <hch@infradead.org>,
linux-scsi@vger.kernel.org,
Fujita Tomonori <fujita.tomonori@lab.ntt.co.jp>
Subject: Re: [PATCH 2/2] [SCSI] ibmvscsi: Fix SCSI scanning
Date: Mon, 20 Jun 2011 14:10:24 -0500 [thread overview]
Message-ID: <4DFF9B20.8040100@linux.vnet.ibm.com> (raw)
In-Reply-To: <BANLkTim=EffOgBK=xrMfva-zOdX4fz-2Lg@mail.gmail.com>
On 06/20/2011 12:58 PM, Bart Van Assche wrote:
> On Mon, Jun 20, 2011 at 1:40 PM, Christoph Hellwig <hch@infradead.org> 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
next prev parent reply other threads:[~2011-06-20 19:10 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-19 11:48 [PATCH 2/2] [SCSI] ibmvscsi: Fix SCSI scanning Bart Van Assche
2011-06-20 11:40 ` Christoph Hellwig
2011-06-20 17:58 ` Bart Van Assche
2011-06-20 19:10 ` Brian King [this message]
2011-06-20 19:06 ` Brian King
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