From: Jeff Garzik <jgarzik@pobox.com>
To: Luben Tuikov <luben_tuikov@adaptec.com>,
Christoph Hellwig <hch@infradead.org>
Cc: SCSI Mailing List <linux-scsi@vger.kernel.org>, linuxraid@amcc.com
Subject: Re: [PATCH] 3ware: use scsi_scan_target()
Date: Wed, 05 Oct 2005 15:24:30 -0400 [thread overview]
Message-ID: <4344286E.5090306@pobox.com> (raw)
In-Reply-To: <43442312.4030304@adaptec.com>
Luben Tuikov wrote:
> On 10/05/05 12:28, Christoph Hellwig wrote:
>>How does 3x-9xxx support luns? From reading the
> AFAIR the firmware just exports the LUs. The FW doesn't
> support REPORT LUNS; the LLDD exported LUs directly to SCSI Core.
Some 9xxx firmwares do support LUNs:
> /* Check if this FW supports luns */
> if ((SCpnt->device->lun != 0) && (tw_dev->working_srl < TW_FW_SRL_LUNS_SUPPORTED)) {
and the newer 9xxx are quite different from 3w-xxxx, because 9xxx
firmware interface is largely just a execute-scsi-command message,
rather than the translation stuff the goes on in 3w-xxxx.
As to Christoph's question, _how_ does the firmware support LUNs? No
idea. It clearly does support it, though.
Jeff
next prev parent reply other threads:[~2005-10-05 19:24 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-04 0:57 [PATCH] 3ware: use scsi_scan_target() Jeff Garzik
2005-10-05 16:28 ` Christoph Hellwig
2005-10-05 19:01 ` Luben Tuikov
2005-10-05 19:20 ` adam radford
2005-10-05 19:24 ` Jeff Garzik [this message]
2005-10-05 19:34 ` Jeff Garzik
2005-10-05 23:19 ` Luben Tuikov
2005-10-07 1:07 ` James Bottomley
2005-10-07 21:36 ` Luben Tuikov
2005-10-08 14:30 ` James Bottomley
2005-10-09 16:25 ` Luben Tuikov
2005-10-10 5:05 ` Mike Anderson
2005-10-14 16:19 ` Luben Tuikov
-- strict thread matches above, loose matches on Subject: below --
2005-10-06 13:13 James.Smart
2005-10-06 18:09 ` Luben Tuikov
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