From: "Steve Wise" <swise-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
To: 'Bart Van Assche'
<bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>,
linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: 'Sagi Grimberg' <sagig-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
'Christoph Hellwig' <hch-jcswGhMUV9g@public.gmane.org>,
'Chuck Lever'
<chuck.lever-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
Subject: RE: [PATCH v2 0/3] new ib_drain_qp() API
Date: Tue, 9 Feb 2016 15:06:13 -0600 [thread overview]
Message-ID: <011801d1637d$b5224980$1f66dc80$@opengridcomputing.com> (raw)
In-Reply-To: <56BA540B.4040405-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
> > The problem is SRP creates its SQ CQ with IB_POLL_DIRECT context, so the CQ is never armed for interrupts, and SRP polls the CQ
> > directly. So the drain logic won't work.
> >
> > I propose ib_drain_qp() takes a new parameter that tells it which queues to drain. Then the SRP code will only drain the RQ
(which
> > is what it is doing prior to this series).
>
> Hello Steve,
>
> How about creating three functions - one that drains the receive queue,
> one that drains the send queue and a third function that drains both ?
> The latter function then can call the two former functions. And since
> only one of these three functions will have a user in your patch series
> (the function that drains the RQ), how about only introducing only that
> function now and to wait with introducing the two other functions until
> these have a user ?
That sounds reasonable. Simpler too perhaps. We'll see if anyone else has an opinion.
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next prev parent reply other threads:[~2016-02-09 21:06 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-08 22:14 [PATCH v2 0/3] new ib_drain_qp() API Steve Wise
[not found] ` <cover.1454969695.git.swise-ut6Up61K2wZBDgjK7y7TUQ@public.gmane.org>
2016-01-14 18:24 ` [PATCH 2/3] iw_cxgb4: add drain_qp function Steve Wise
2016-01-27 20:09 ` [PATCH 3/3] IB/srp: use ib_drain_qp() Steve Wise
2016-02-05 21:13 ` [PATCH 1/3] IB: new common API for draining a queue pair Steve Wise
2016-02-09 20:04 ` [PATCH v2 0/3] new ib_drain_qp() API Steve Wise
2016-02-09 20:50 ` Steve Wise
2016-02-09 21:03 ` Bart Van Assche
[not found] ` <56BA540B.4040405-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-02-09 21:06 ` Steve Wise [this message]
2016-02-09 21:18 ` Chuck Lever
[not found] ` <08D51C34-0009-4784-BE80-7BCB85441606-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-02-09 21:20 ` Steve Wise
2016-02-09 21:35 ` Chuck Lever
[not found] ` <011901d1637d$b5286400$1f792c00$@opengridcomputing.com>
2016-02-09 21:58 ` Steve Wise
2016-02-09 22:23 ` Chuck Lever
2016-02-10 10:33 ` Sagi Grimberg
[not found] ` <56BB11F0.9090203-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2016-02-10 14:08 ` Bart Van Assche
[not found] ` <56BB4479.8090009-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-02-11 10:46 ` Sagi Grimberg
[not found] ` <56BC6686.8030301-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2016-02-11 15:15 ` Bart Van Assche
[not found] ` <56BCA57A.4000500-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-02-11 16:11 ` Sagi Grimberg
[not found] ` <56BCB2C3.9060408-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2016-02-11 18:54 ` Bart Van Assche
2016-02-10 15:27 ` Steve Wise
2016-02-10 15:55 ` Steve Wise
2016-02-11 15:22 ` Doug Ledford
[not found] ` <56BCA741.6020800-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-02-11 16:09 ` Sagi Grimberg
[not found] ` <56BCB239.3020505-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2016-02-11 16:10 ` Steve Wise
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