From: James Bottomley <James.Bottomley@steeleye.com>
To: Kurt Garloff <garloff@suse.de>
Cc: Andrew Morton <akpm@osdl.org>,
Linux SCSI list <linux-scsi@vger.kernel.org>
Subject: Re: Patches for SCSI scanning
Date: 20 Apr 2004 11:08:49 -0500 [thread overview]
Message-ID: <1082477331.2191.44.camel@mulgrave> (raw)
In-Reply-To: <20040420160334.GO4356@tpkurt.garloff.de>
On Tue, 2004-04-20 at 11:03, Kurt Garloff wrote:
> Linux maps 8 byte LUNs to a 32bit number in scsilun_to_int().
> There are several ways to use the 8 bytes, but the mapping assumes
> a particular model which is often used and the mapping is nice in
> that it results in LUNs being 0, 1, 2, ...
> However, there are other possibilities. And as soon as the last
> four bytes are non-zero, the mapping will break down :-/
> The S/390 folks seem to have such devices.
This looks like it needs fixing in our lun mapping support, doesn't it,
rather than trying to work around it with a flag?
I'd rather only have an actual blacklist flag if there's genuinely a
stupid device with a real problem, rather than just a "we don't do this
entirely correctly in the kernel" problem.
James
next prev parent reply other threads:[~2004-04-20 16:08 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-18 18:57 Patches for SCSI scanning Kurt Garloff
2004-04-18 23:16 ` James Bottomley
2004-04-20 11:54 ` Kurt Garloff
2004-04-20 12:04 ` Christoph Hellwig
2004-04-20 13:02 ` Kurt Garloff
2004-04-20 14:38 ` James Bottomley
2004-04-20 16:03 ` Kurt Garloff
2004-04-20 16:08 ` James Bottomley [this message]
2004-04-21 13:48 ` Kurt Garloff
2004-04-21 15:36 ` James Bottomley
2004-04-21 13:45 ` Kurt Garloff
2004-04-21 14:10 ` PATCH 1/5: scsi-scan-deprecate-forcelun Kurt Garloff
2004-04-21 14:12 ` PATCH 2/5: scsi-scan-blist_replun Kurt Garloff
2004-04-21 15:14 ` Christoph Hellwig
2004-04-21 15:30 ` Kurt Garloff
2004-04-21 16:03 ` Kurt Garloff
2004-04-21 14:13 ` PATCH 3/5: scsi-scan-no-offl-pq-notcon Kurt Garloff
2004-04-21 14:14 ` PATCH 4/5: scsi-scan-dont-att-pq-notcon Kurt Garloff
2004-04-21 15:02 ` Christoph Hellwig
2004-04-21 15:24 ` Kurt Garloff
2004-04-21 15:33 ` Mike Anderson
2004-04-21 15:33 ` Christoph Hellwig
2004-04-21 16:08 ` Kurt Garloff
2004-04-21 16:18 ` James Bottomley
2004-04-21 16:55 ` Patrick Mansfield
2004-04-21 22:51 ` Kurt Garloff
2004-04-22 20:39 ` Patrick Mansfield
2004-04-22 20:45 ` James Bottomley
2004-04-21 16:58 ` Kurt Garloff
2004-04-21 16:16 ` Kurt Garloff
2004-04-21 15:40 ` James Bottomley
2004-04-21 14:14 ` PATCH 5/5: scsi-scan-inq-timeout Kurt Garloff
2004-04-21 20:24 ` Patrick Mansfield
2004-04-21 22:48 ` Kurt Garloff
2004-04-21 23:49 ` Patrick Mansfield
2004-04-20 16:26 ` Patches for SCSI scanning Patrick Mansfield
2004-04-20 16:42 ` Kurt Garloff
2004-04-20 17:44 ` Patrick Mansfield
2004-04-21 13:52 ` Kurt Garloff
2004-04-20 10:24 ` Fabien Salvi
-- strict thread matches above, loose matches on Subject: below --
2004-04-22 4:09 Martin Peschke3
2004-04-22 4:17 Martin Peschke3
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