From: Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
To: Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH for-4.3] IB/ipoib: add module option for auto-creating mcast groups
Date: Fri, 11 Sep 2015 16:00:29 -0600 [thread overview]
Message-ID: <20150911220029.GA20262@obsidianresearch.com> (raw)
In-Reply-To: <55F34A59.50401-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
On Fri, Sep 11, 2015 at 05:40:41PM -0400, Doug Ledford wrote:
> Then a simple mcast_expire_task that runs every 10 minutes or so and
> leaves any send-only groups that haven't had a packet timestamp update
> in more than some arbitrary amount of time would be a very simple
> addition to make.
That all makes sense to me and addresses the backlog issue Christoph
mentioned.
It would also be fairly simple to do send-only join properly with the
above, as we simply switch to polling the SA to detect if the join is
good or not on the same timer that would expire it.
> > If it isn't subscribed to the broadcast MLID, it is violating MUST
> > statements in the RFC...
>
> Yeah, my comment was in reference to whether or not it would receive a
> multicast on broadcast packet and forward it properly.
It would be hugely broken to be sensitive to the MLID when working
with multicast routing.
Jason
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prev parent reply other threads:[~2015-09-11 22:00 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-11 1:21 [PATCH for-4.3] IB/ipoib: add module option for auto-creating mcast groups Doug Ledford
[not found] ` <980e8b0a82042d7e5801e02bf16fe72a0bde6759.1441934465.git.dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-09-11 14:40 ` Christoph Lameter
[not found] ` <alpine.DEB.2.11.1509110920540.16357-wcBtFHqTun5QOdAKl3ChDw@public.gmane.org>
2015-09-11 18:21 ` Jason Gunthorpe
[not found] ` <20150911182115.GA546-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-09-11 19:41 ` Doug Ledford
[not found] ` <55F32E7A.3020105-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-09-14 17:03 ` Christoph Lameter
[not found] ` <alpine.DEB.2.11.1509141200020.4192-wcBtFHqTun5QOdAKl3ChDw@public.gmane.org>
2015-09-15 18:24 ` Doug Ledford
[not found] ` <55F86255.9080508-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-09-15 18:42 ` Christoph Lameter
2015-09-15 19:11 ` Jason Gunthorpe
[not found] ` <20150915191159.GB24173-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-09-15 23:53 ` Christoph Lameter
[not found] ` <alpine.DEB.2.11.1509151852530.15731-wcBtFHqTun5QOdAKl3ChDw@public.gmane.org>
2015-09-16 15:14 ` Doug Ledford
[not found] ` <55F9873B.2080407-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-09-16 15:38 ` Christoph Lameter
2015-09-16 15:21 ` Doug Ledford
[not found] ` <55F988F1.8000508-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-09-16 15:59 ` Christoph Lameter
[not found] ` <alpine.DEB.2.11.1509161058540.22035-wcBtFHqTun5QOdAKl3ChDw@public.gmane.org>
2015-09-16 16:26 ` Doug Ledford
[not found] ` <55F9981F.5010605-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-09-16 16:31 ` Christoph Lameter
[not found] ` <alpine.DEB.2.11.1509161129080.22736-wcBtFHqTun5QOdAKl3ChDw@public.gmane.org>
2015-09-16 20:13 ` Or Gerlitz
[not found] ` <CAJ3xEMi2SEXWmmLmm2xb_X_BZJY2L3UM1UfsXjFaupHBbi=q8g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-09-16 20:17 ` Christoph Lameter
[not found] ` <alpine.DEB.2.11.1509161517110.24175-wcBtFHqTun5QOdAKl3ChDw@public.gmane.org>
2015-09-16 20:52 ` Or Gerlitz
[not found] ` <CAJ3xEMjVcTYicgNmv0_eSySF_gf-S3pLVY_YCoUk44rVfpYPLw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-09-17 0:48 ` Christoph Lameter
[not found] ` <alpine.DEB.2.11.1509161945250.25627-wcBtFHqTun5QOdAKl3ChDw@public.gmane.org>
2015-09-17 10:39 ` Or Gerlitz
2015-09-16 17:03 ` Jason Gunthorpe
2015-09-11 18:39 ` Jason Gunthorpe
[not found] ` <20150911183931.GB546-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-09-11 20:09 ` Doug Ledford
[not found] ` <55F3350D.6090002-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-09-11 20:38 ` Jason Gunthorpe
[not found] ` <20150911203820.GA19161-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-09-11 21:40 ` Doug Ledford
[not found] ` <55F34A59.50401-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-09-11 22:00 ` Jason Gunthorpe [this message]
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