From: Johannes Thumshirn <jthumshirn@suse.de>
To: Christoph Hellwig <hch@lst.de>
Cc: Sagi Grimberg <sagi@grimberg.me>,
Keith Busch <keith.busch@intel.com>,
James Smart <james.smart@broadcom.com>,
Hannes Reinecke <hare@suse.de>, Ewan Milne <emilne@redhat.com>,
Max Gurtovoy <maxg@mellanox.com>,
Linux NVMe Mailinglist <linux-nvme@lists.infradead.org>,
Linux Kernel Mailinglist <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 0/4] Rework NVMe abort handling
Date: Thu, 19 Jul 2018 16:54:22 +0200 [thread overview]
Message-ID: <20180719145422.2tdrbwa34gheuam3@linux-x5ow.site> (raw)
In-Reply-To: <20180719145005.GA21000@lst.de>
On Thu, Jul 19, 2018 at 04:50:05PM +0200, Christoph Hellwig wrote:
> The upper layer is only going to retry after tearing down the transport
> connection. And a tear down of the connection MUST clear all pending
> commands on the way. If it doesn't we are in deep, deep trouble.
>
> A NVMe abort has no chance of clearing things at the transport layer.
OK so all I can do in my case (if I want soft error recovery) is send
out a transport abort in the timeout handler and then rearm the timer
and requeue the command.
Which leaves us to the FC patch only, modified of cause.
--
Johannes Thumshirn Storage
jthumshirn@suse.de +49 911 74053 689
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Felix Imendörffer, Jane Smithard, Graham Norton
HRB 21284 (AG Nürnberg)
Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850
next prev parent reply other threads:[~2018-07-19 14:54 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-19 13:28 [PATCH 0/4] Rework NVMe abort handling Johannes Thumshirn
2018-07-19 13:28 ` [PATCH 1/4] nvme: factor out pci abort handling into core Johannes Thumshirn
2018-07-19 16:29 ` kbuild test robot
2018-07-19 13:28 ` [PATCH 2/4] nvme: rdma: abort commands before resetting controller Johannes Thumshirn
2018-07-19 13:28 ` [PATCH 3/4] nvmet: loop: " Johannes Thumshirn
2018-07-19 13:28 ` [PATCH 4/4] nvme: fc: " Johannes Thumshirn
2018-07-19 13:42 ` [PATCH 0/4] Rework NVMe abort handling Christoph Hellwig
2018-07-19 14:10 ` Johannes Thumshirn
2018-07-19 14:23 ` Christoph Hellwig
2018-07-19 14:35 ` Johannes Thumshirn
2018-07-19 14:50 ` Christoph Hellwig
2018-07-19 14:54 ` Johannes Thumshirn [this message]
2018-07-19 15:04 ` James Smart
2018-07-20 6:36 ` Johannes Thumshirn
2018-07-19 15:00 ` James Smart
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