From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
To: Steve Wise <swise-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
Cc: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>,
linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
sagig-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org,
bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org,
axboe-b10kYP2dOMg@public.gmane.org,
linux-scsi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH 3/9] IB: add a helper to safely drain a QP
Date: Sat, 14 Nov 2015 08:05:31 +0100 [thread overview]
Message-ID: <20151114070531.GC27738@lst.de> (raw)
In-Reply-To: <56460CC4.3030001-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
On Fri, Nov 13, 2015 at 10:16:04AM -0600, Steve Wise wrote:
> So how can we do this for iwarp? It seems like all that might be needed is
> to modify the QP state to idle, retrying until it succeeds:
>
> If the QP is transitioning to the Error state, or has not yet
> finished flushing the Work Queues, a Modify QP request to transition
> to the IDLE state MUST fail with an Immediate Error. If none of the
> prior conditions are true, a Modify QP to the Idle state MUST take
> the QP to the Idle state. No other state transitions out of Error
> are supported. Any attempt to transition the QP to a state other
> than Idle MUST result in an Immediate Error.
Can you try to write up some code for this? We could then wire it up
in the common helper.
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next prev parent reply other threads:[~2015-11-14 7:05 UTC|newest]
Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-13 13:46 add a proper completion queue abstraction Christoph Hellwig
2015-11-13 13:46 ` [PATCH 1/9] move blk_iopoll to limit and make it generally available Christoph Hellwig
[not found] ` <1447422410-20891-2-git-send-email-hch-jcswGhMUV9g@public.gmane.org>
2015-11-13 15:23 ` Or Gerlitz
[not found] ` <CAJ3xEMgj2ycv61K38ZOowTRbrri_UhQgBcaKT0ZnnMHiBrmL5A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-11-14 7:02 ` Christoph Hellwig
[not found] ` <20151114070200.GA27738-jcswGhMUV9g@public.gmane.org>
2015-11-15 8:48 ` Sagi Grimberg
[not found] ` <564846E9.9070301-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-11-15 9:04 ` Or Gerlitz
[not found] ` <CAJ3xEMgvttM1D3bePz0CWhZAZ3gCSQsf_qgmq9Ny4gzK5d0bXw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-11-15 13:16 ` Sagi Grimberg
2015-11-15 12:51 ` Christoph Hellwig
2015-11-13 19:19 ` Bart Van Assche
2015-11-14 7:02 ` Christoph Hellwig
2015-11-17 17:16 ` Bart Van Assche
2015-11-17 17:27 ` Bart Van Assche
2015-11-18 13:58 ` Christoph Hellwig
2015-11-13 13:46 ` [PATCH 2/9] IB: add a proper completion queue abstraction Christoph Hellwig
2015-11-15 9:40 ` Sagi Grimberg
[not found] ` <564852F2.5080602-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-11-15 12:55 ` Christoph Hellwig
[not found] ` <20151115125501.GB2218-jcswGhMUV9g@public.gmane.org>
2015-11-15 13:21 ` Sagi Grimberg
[not found] ` <1447422410-20891-3-git-send-email-hch-jcswGhMUV9g@public.gmane.org>
2015-11-13 18:25 ` Jason Gunthorpe
[not found] ` <20151113182513.GB21808-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-11-13 19:57 ` Bart Van Assche
2015-11-13 22:06 ` Jason Gunthorpe
[not found] ` <20151113220636.GA32133-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-11-14 7:13 ` Christoph Hellwig
[not found] ` <20151114071344.GE27738-jcswGhMUV9g@public.gmane.org>
2015-11-23 20:37 ` Jason Gunthorpe
2015-11-23 21:04 ` Bart Van Assche
2015-11-23 21:28 ` Jason Gunthorpe
2015-11-23 21:54 ` Bart Van Assche
2015-11-23 22:18 ` Jason Gunthorpe
2015-11-23 22:33 ` Bart Van Assche
2015-11-23 23:06 ` Jason Gunthorpe
[not found] ` <B24F4DDE-709A-4D2D-8B26-4E83325DBB1A@asomi.com>
2015-11-24 0:00 ` Jason Gunthorpe
[not found] ` <20151124000011.GA9301-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-11-24 0:34 ` Tom Talpey
[not found] ` <5653B0AD.7090402-CLs1Zie5N5HQT0dZR+AlfA@public.gmane.org>
2015-11-24 0:40 ` Jason Gunthorpe
2015-11-24 2:35 ` Caitlin Bestler
[not found] ` <5653CCF0.7050501-DpaxOq6QOWMAvxtiuMwx3w@public.gmane.org>
2015-11-24 7:03 ` Jason Gunthorpe
[not found] ` <20151124070301.GA23597-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-11-24 12:52 ` Tom Talpey
2015-11-14 7:08 ` Christoph Hellwig
2015-11-23 20:01 ` Jason Gunthorpe
[not found] ` <20151123200136.GA5640-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-11-23 20:57 ` Christoph Hellwig
2015-11-17 17:52 ` Bart Van Assche
[not found] ` <564B697A.2020601-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2015-11-18 7:55 ` Sagi Grimberg
[not found] ` <564C2F01.6020407-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-11-18 18:20 ` Bart Van Assche
2015-11-20 10:16 ` Christoph Hellwig
2015-11-20 16:50 ` Bart Van Assche
2015-11-22 9:51 ` Sagi Grimberg
2015-11-22 10:13 ` Christoph Hellwig
[not found] ` <20151122101308.GA12189-jcswGhMUV9g@public.gmane.org>
2015-11-22 10:36 ` Sagi Grimberg
[not found] ` <56519A90.5010502-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-11-22 13:23 ` Christoph Hellwig
[not found] ` <20151122132352.GA14154-jcswGhMUV9g@public.gmane.org>
2015-11-22 14:57 ` Sagi Grimberg
2015-11-22 16:55 ` Bart Van Assche
2015-11-18 14:00 ` Christoph Hellwig
2015-11-13 13:46 ` [PATCH 3/9] IB: add a helper to safely drain a QP Christoph Hellwig
2015-11-15 9:34 ` Sagi Grimberg
[not found] ` <564851BB.1020004-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-11-16 16:38 ` Steve Wise
[not found] ` <564A067B.8030504-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
2015-11-16 18:30 ` Steve Wise
2015-11-16 18:37 ` Sagi Grimberg
[not found] ` <564A2270.1040004-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-11-16 19:03 ` Steve Wise
2015-11-17 8:54 ` Sagi Grimberg
2015-11-23 10:28 ` Sagi Grimberg
2015-11-23 10:35 ` Sagi Grimberg
2015-11-23 14:33 ` 'Christoph Hellwig'
[not found] ` <5652EC00.8010705-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-11-23 14:48 ` Steve Wise
2015-11-23 14:44 ` Steve Wise
2015-11-17 17:06 ` Bart Van Assche
[not found] ` <564B5E7D.9030309-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2015-11-18 7:59 ` Sagi Grimberg
[not found] ` <1447422410-20891-4-git-send-email-hch-jcswGhMUV9g@public.gmane.org>
2015-11-13 16:16 ` Steve Wise
[not found] ` <56460CC4.3030001-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
2015-11-14 7:05 ` Christoph Hellwig [this message]
2015-11-18 11:32 ` Sagi Grimberg
[not found] ` <564C61C3.3050307-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-11-18 14:06 ` Christoph Hellwig
[not found] ` <20151118140645.GI18820-jcswGhMUV9g@public.gmane.org>
2015-11-18 15:21 ` Steve Wise
[not found] ` <1447422410-20891-1-git-send-email-hch-jcswGhMUV9g@public.gmane.org>
2015-11-13 13:46 ` [PATCH 4/9] srpt: chain RDMA READ/WRITE requests Christoph Hellwig
2015-11-18 1:17 ` Bart Van Assche
2015-11-18 9:15 ` Sagi Grimberg
2015-11-18 16:32 ` Bart Van Assche
[not found] ` <564CA83B.4060403-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2015-11-20 10:20 ` Christoph Hellwig
[not found] ` <564BD1AF.60200-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2015-11-18 14:06 ` Christoph Hellwig
2015-11-13 13:46 ` [PATCH 5/9] srpt: use the new CQ API Christoph Hellwig
[not found] ` <1447422410-20891-6-git-send-email-hch-jcswGhMUV9g@public.gmane.org>
2015-11-17 18:22 ` Bart Van Assche
2015-11-17 19:38 ` Bart Van Assche
[not found] ` <564B8248.7050407-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2015-11-18 14:03 ` Christoph Hellwig
2015-11-13 13:46 ` [PATCH 6/9] srp: " Christoph Hellwig
[not found] ` <1447422410-20891-7-git-send-email-hch-jcswGhMUV9g@public.gmane.org>
2015-11-17 19:56 ` Bart Van Assche
2015-11-18 14:03 ` Christoph Hellwig
2015-11-13 13:46 ` [PATCH 7/9] IB/iser: Use a dedicated descriptor for login Christoph Hellwig
[not found] ` <1447422410-20891-8-git-send-email-hch-jcswGhMUV9g@public.gmane.org>
2015-11-15 9:14 ` Or Gerlitz
2015-11-13 13:46 ` [PATCH 8/9] IB/iser: Use helper for container_of Christoph Hellwig
2015-11-13 13:46 ` [PATCH 9/9] IB/iser: Convert to CQ abstraction Christoph Hellwig
[not found] ` <1447422410-20891-10-git-send-email-hch-jcswGhMUV9g@public.gmane.org>
2015-11-15 9:21 ` Or Gerlitz
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