Re: [PATCH 2/9] IB: add a proper completion queue abstraction

From	Christoph Hellwig <hch@lst.de>
Newsgroups	linux.kernel
Subject	Re: [PATCH 2/9] IB: add a proper completion queue abstraction
Date	2015-11-22 14:30 +0100
Message-ID	<qxCSl-4ke-1@gated-at.bofh.it> (permalink)
References	(5 earlier) <qwQXo-5SQ-11@gated-at.bofh.it> <qxzB8-1WF-13@gated-at.bofh.it> <qxzB8-1WF-11@gated-at.bofh.it> <qxzUu-2li-13@gated-at.bofh.it> <qxAdP-2sv-11@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Sun, Nov 22, 2015 at 12:36:00PM +0200, Sagi Grimberg wrote:
>
>> Wouldn't it be a better idea to set the WQ_SYSFS interface and use
>> the standard sysfs interface for specifying cpumasks or node affinity?
>
> I think that bart wants to allow the caller to select cpu affinity
> per CQ. In this case ib_alloc_cq in workqueue mode would need to
> accept a affinity_hint from the caller (default to wild-card 
> WORK_CPU_UNBOUND).

Hmm, true.  How would be set that hint from userspace?  I'd really prefer
to see a practical justification for it first.
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Thread

Re: [PATCH 2/9] IB: add a proper completion queue abstraction Sagi Grimberg <sagig@dev.mellanox.co.il> - 2015-11-18 09:00 +0100
  Re: [PATCH 2/9] IB: add a proper completion queue abstraction Christoph Hellwig <hch@lst.de> - 2015-11-20 11:20 +0100
    Re: [PATCH 2/9] IB: add a proper completion queue abstraction Sagi Grimberg <sagig@dev.mellanox.co.il> - 2015-11-22 11:00 +0100
      Re: [PATCH 2/9] IB: add a proper completion queue abstraction Christoph Hellwig <hch@lst.de> - 2015-11-22 11:20 +0100
        Re: [PATCH 2/9] IB: add a proper completion queue abstraction Sagi Grimberg <sagig@dev.mellanox.co.il> - 2015-11-22 11:40 +0100
          Re: [PATCH 2/9] IB: add a proper completion queue abstraction Christoph Hellwig <hch@lst.de> - 2015-11-22 14:30 +0100
            Re: [PATCH 2/9] IB: add a proper completion queue abstraction Sagi Grimberg <sagig@dev.mellanox.co.il> - 2015-11-22 16:00 +0100
              Re: [PATCH 2/9] IB: add a proper completion queue abstraction Bart Van Assche <bvanassche@acm.org> - 2015-11-22 18:00 +0100

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