From: Hannes Reinecke <hare@suse.de>
To: Christoph Hellwig <hch@lst.de>
Cc: Nic Bellinger <nab@daterainc.com>,
target-devel@vger.kernel.org, linux-scsi@vger.kernel.org,
Ewan Milne <emilne@redhat.com>
Subject: Re: [PATCH 0/8] tcm_loop updates
Date: Fri, 19 Jun 2015 09:13:27 +0200 [thread overview]
Message-ID: <5583C117.4030103@suse.de> (raw)
In-Reply-To: <20150619064855.GB1183@lst.de>
On 06/19/2015 08:48 AM, Christoph Hellwig wrote:
> What's the benefit of the SAS transport class writeout? I honestly
> always saw tcm_loop as a simple loopback driver, with the different
> transport IDs in the PR code as a gimmick. Note that vhost and
> xen-blkback copies that style and I did plan to consolidate it
> in common code.
>
The benefit is that tcm_loop will show up in the system as a 'real'
SAS hba; long-term goal is to simulate SAS multipathing here.
I was even planning on adding simlated FC infrastructure, too;
with that we could simulate FC multipathing, too, and our QA would
be _so_ happy...
Again, these patches are mainly a collection of patches I've done to
test various scenarios, in the hope others might find them useful,
too. So I can easily hold off these patches until you've posted your
rework.
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare@suse.de +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
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next prev parent reply other threads:[~2015-06-19 7:13 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-18 9:43 [PATCH 0/8] tcm_loop updates Hannes Reinecke
2015-06-18 9:43 ` [PATCH 1/8] tcm_loop: Hook into SAS transport class Hannes Reinecke
2015-06-18 9:43 ` [PATCH 2/8] tcm_loop: Add SAS transport topology Hannes Reinecke
2015-06-18 9:43 ` [PATCH 3/8] tcm_loop: Remove SAS vestigies Hannes Reinecke
2015-06-18 9:43 ` [PATCH 4/8] tcm_loop: Send I_T_NEXUS_LOSS_OCCURRED UA Hannes Reinecke
2015-06-18 9:43 ` [PATCH 5/8] tcm_loop: Rescan SCSI target on transport online Hannes Reinecke
2015-06-18 9:43 ` [PATCH 6/8] target: Issue Power-On/Reset UA upon LUN instantiation Hannes Reinecke
2015-06-18 9:43 ` [PATCH 7/8] target_core_alua: disallow READ_CAPACITY when in standby Hannes Reinecke
2015-06-18 11:40 ` Chris Boot
2015-06-18 14:32 ` Hannes Reinecke
2015-06-19 6:49 ` Christoph Hellwig
2015-06-19 7:07 ` Hannes Reinecke
2015-06-18 9:43 ` [PATCH 8/8] target: display 'write_protect' attribute for demo-mode LUNs Hannes Reinecke
2015-06-19 6:51 ` Christoph Hellwig
2015-06-19 7:05 ` Hannes Reinecke
2015-06-19 6:48 ` [PATCH 0/8] tcm_loop updates Christoph Hellwig
2015-06-19 7:13 ` Hannes Reinecke [this message]
2015-06-23 8:29 ` Nicholas A. Bellinger
2015-06-23 9:05 ` Hannes Reinecke
2015-07-07 0:25 ` Nicholas A. Bellinger
2015-07-07 5:50 ` Hannes Reinecke
2015-07-07 6:26 ` Nicholas A. Bellinger
2015-07-07 6:29 ` Hannes Reinecke
2015-07-07 6:42 ` Nicholas A. Bellinger
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