From: Or Gerlitz <ogerlitz-smomgflXvOZWk0Htik3J/w@public.gmane.org>
To: Jason Gunthorpe
<jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
Cc: Roland Dreier <rdreier-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>,
Steve Wise
<swise-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>,
"Robert D. Russell" <rdr-zcUZCMB5SQOVc3sceRu5cw@public.gmane.org>,
linux-rdma <linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [PATCH] libibverbs/doc: clarify selective signaling (Re: using IBV_SEND_SIGNALED)
Date: Wed, 01 Dec 2010 10:17:10 +0200 [thread overview]
Message-ID: <4CF60486.1030702@voltaire.com> (raw)
In-Reply-To: <20101130185744.GK16788-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
On 11/30/2010 8:57 PM, Jason Gunthorpe wrote:
> I think the subtly here is that remote completion of a local WR does
> not indiciate local completion. This is the only operational case I
> can think of that might break the rules.
The point you're bringing is sure valid and actually I can change the
patch to address both issues, the one raised on the original thread (see
"using IBV_SEND_SIGNALED in ewg from this week), where Robert says
"However, as soon as I call ibv_post_send() more than max_send_wr
times, it fails" so 1st we need to clarify that without posting a
signaled WR the HCA will fail, and 2nd that the application can't
consume back the resources associated with a send WR until a "later" WR
completes.
Or.
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next prev parent reply other threads:[~2010-12-01 8:17 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <alpine.LNX.2.00.1011291128190.31687@postal.iol.unh.edu>
[not found] ` <4CF3DDF0.2070907@opengridcomputing.com>
[not found] ` <alpine.LNX.2.00.1011291233540.5810@postal.iol.unh.edu>
[not found] ` <4CF3E5FA.6010308@opengridcomputing.com>
[not found] ` <4CF3E5FA.6010308-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
2010-11-30 11:56 ` [PATCH] libibverbs/doc: clarify selective signaling (Re: using IBV_SEND_SIGNALED) Or Gerlitz
[not found] ` <4CF4E65D.4070205-hKgKHo2Ms0FWk0Htik3J/w@public.gmane.org>
2010-11-30 18:57 ` Jason Gunthorpe
[not found] ` <20101130185744.GK16788-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2010-12-01 8:17 ` Or Gerlitz [this message]
2010-12-01 9:01 ` Or Gerlitz
[not found] ` <4CF60ED0.6000502-hKgKHo2Ms0FWk0Htik3J/w@public.gmane.org>
2010-12-01 19:10 ` Jason Gunthorpe
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