From: Roland Dreier <rdreier-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
To: Christoph Lameter <cl-vYTEC60ixJUAvxtiuMwx3w@public.gmane.org>
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: IPoIB multiqueue support?
Date: Tue, 11 May 2010 08:56:11 -0700 [thread overview]
Message-ID: <adawrvawhyc.fsf@roland-alpha.cisco.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1005110851530.1500-sBS69tsa9Uj/9pzu0YdTqQ@public.gmane.org> (Christoph Lameter's message of "Tue, 11 May 2010 08:53:38 -0500 (CDT)")
> I am mostly interested in multicast traffic. Connected mode is not
> relevant to that usage scenario.
As I said, I don't think anyone is working on it. However it wouldn't
be that hard to get something pretty good for multicast, since the
InfiniBand multicast join mechanism would let you have essentially a
perfect filter for steering individual multicast groups to whichever QP
(ring) you wanted to.
Of course you could also implement the equivalent thing in userspace and
probably get even better performance.
- R.
--
Roland Dreier <rolandd-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org> || For corporate legal information go to:
http://www.cisco.com/web/about/doing_business/legal/cri/index.html
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next prev parent reply other threads:[~2010-05-11 15:56 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-10 21:08 IPoIB multiqueue support? Christoph Lameter
[not found] ` <alpine.DEB.2.00.1005101607580.17916-sBS69tsa9Uj/9pzu0YdTqQ@public.gmane.org>
2010-05-10 21:12 ` Roland Dreier
[not found] ` <adawrvbxxyd.fsf-BjVyx320WGW9gfZ95n9DRSW4+XlvGpQz@public.gmane.org>
2010-05-11 13:53 ` Christoph Lameter
[not found] ` <alpine.DEB.2.00.1005110851530.1500-sBS69tsa9Uj/9pzu0YdTqQ@public.gmane.org>
2010-05-11 15:56 ` Roland Dreier [this message]
[not found] ` <adawrvawhyc.fsf-BjVyx320WGW9gfZ95n9DRSW4+XlvGpQz@public.gmane.org>
2010-05-11 20:17 ` Christoph Lameter
[not found] ` <alpine.DEB.2.00.1005111516500.1500-sBS69tsa9Uj/9pzu0YdTqQ@public.gmane.org>
2010-05-11 20:43 ` Jason Gunthorpe
[not found] ` <20100511204358.GQ15969-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2010-05-11 20:50 ` Christoph Lameter
[not found] ` <alpine.DEB.2.00.1005111548450.8388-sBS69tsa9Uj/9pzu0YdTqQ@public.gmane.org>
2010-05-11 20:58 ` Jason Gunthorpe
[not found] ` <20100511205808.GS15969-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2010-05-11 22:11 ` Christoph Lameter
2010-05-11 21:52 ` Roland Dreier
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