From: Steve Wise <swise-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
To: Sagi Grimberg <sagi-NQWnxTmZq1alnMjI0IkVqw@public.gmane.org>,
Bart Van Assche
<bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>,
Chuck Lever <chuck.lever-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>,
Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Cc: "linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [PATCH] IB/core: Don't drain the receive queue for srq attached queue-pair
Date: Tue, 26 Apr 2016 14:25:29 -0500 [thread overview]
Message-ID: <571FC0A9.4010306@opengridcomputing.com> (raw)
In-Reply-To: <571FC051.7020009-NQWnxTmZq1alnMjI0IkVqw@public.gmane.org>
On 4/26/2016 2:24 PM, Sagi Grimberg wrote:
>
>> Actually, after thinking more about this, posting anything to the SRQ
>> will not force it to complete. The only reason that works for a QP with
>> an RQ is that the QP is in ERR state and thus the RECV WR gets completed
>> with FLUSHED status.
>
> Exactly...
>
>> So SRQ drain would require some other method...
>
> I still don't understand the meaning of draining a SRQ.
> There are no QP associated post recvs, the QP and contexts
> (wc->qp) are assigned at completion processing time. When
> we have a SRQ the recv contexts are not bound to a
> session/connection/QP...
>
> Can you well-define what are you trying to do?
Answer Christoph's question. :)
I'll climb out of my rat hole now... :D:D:D
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next prev parent reply other threads:[~2016-04-26 19:25 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-26 14:55 [PATCH] IB/core: Don't drain the receive queue for srq attached queue-pair Sagi Grimberg
[not found] ` <1461682538-19647-1-git-send-email-sagi-NQWnxTmZq1alnMjI0IkVqw@public.gmane.org>
2016-04-26 15:07 ` Steve Wise
[not found] ` <CAB5WxwfAGL2qCe7w6A=mKQ65mwjbKKbp_8qFJFRF6Aj7tE+tLQ@mail.gmail.com>
[not found] ` <CAB5WxwfAGL2qCe7w6A=mKQ65mwjbKKbp_8qFJFRF6Aj7tE+tLQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-04-26 15:43 ` Christoph Hellwig
[not found] ` <20160426154328.GA12398-jcswGhMUV9g@public.gmane.org>
2016-04-26 15:55 ` Chuck Lever
[not found] ` <912C9E71-05E3-4ED9-9B41-137E131E3A71-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-04-26 16:00 ` Steve Wise
[not found] ` <571F9084.2040506-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
2016-04-26 16:04 ` Bart Van Assche
[not found] ` <571F917C.40008-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-04-26 16:28 ` Steve Wise
[not found] ` <571F972B.6030904-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
2016-04-26 17:27 ` Bart Van Assche
[not found] ` <571FA4E5.2030501-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-04-26 17:35 ` Steve Wise
[not found] ` <571FA6D5.2060607-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
2016-04-26 19:24 ` Sagi Grimberg
[not found] ` <571FC051.7020009-NQWnxTmZq1alnMjI0IkVqw@public.gmane.org>
2016-04-26 19:25 ` Steve Wise [this message]
2016-04-26 19:20 ` Sagi Grimberg
2016-04-26 19:18 ` Sagi Grimberg
2016-04-26 19:18 ` Sagi Grimberg
2016-04-26 19:15 ` Sagi Grimberg
2016-04-26 19:07 ` Sagi Grimberg
2016-04-26 15:46 ` Bart Van Assche
[not found] ` <571F8D48.4020503-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-04-26 19:11 ` Sagi Grimberg
[not found] ` <571FBD4B.2030102-NQWnxTmZq1alnMjI0IkVqw@public.gmane.org>
2016-04-26 20:06 ` Doug Ledford
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