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From: Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
To: Yuval Shaia <yuval.shaia-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
Cc: Leon Romanovsky <leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	Marcel Apfelbaum <marcel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	qemu-devel-qX2TKyscuCcdnm+yROfE0A@public.gmane.org,
	linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [Qemu-devel] [PATCH RFC] hw/pvrdma: Proposal of a new pvrdma device
Date: Thu, 6 Apr 2017 14:54:16 -0600	[thread overview]
Message-ID: <20170406205416.GB27155@obsidianresearch.com> (raw)
In-Reply-To: <20170406194552.GB2170@yuval-lap>

On Thu, Apr 06, 2017 at 10:45:54PM +0300, Yuval Shaia wrote:

> > Just add my 2 cents. You didn't answer on my question about other possible
> > implementations. It can be SoftRoCE loopback optimizations, special ULP,
> > RDMA transport, virtual driver with multiple VFs and single PF.
> 
> Please see my response to Jason's comments - eventually, when a support for
> VM to external host communication will be added - kdbr will become ULP as
> well.

So, is KDBR only to be used on the HV side? Ie it never shows up in the VM?

That is even weirder, we certainly do not want to see a kernel RDMA
ULP for any of this - the entire point of RDMA is to let user space
implement their protocols without needing a unique kernel component!!

Jason
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  reply	other threads:[~2017-04-06 20:54 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-30 11:12 [Qemu-devel] [PATCH RFC] hw/pvrdma: Proposal of a new pvrdma device Marcel Apfelbaum
     [not found] ` <1490872341-9959-1-git-send-email-marcel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-03-30 14:13   ` Leon Romanovsky
     [not found]     ` <20170330141314.GM20443-U/DQcQFIOTAAJjI8aNfphQ@public.gmane.org>
2017-03-30 20:28       ` Doug Ledford
     [not found]         ` <5e952524-7c2d-b4da-4bd7-6437830a40d8-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-03-30 23:38           ` Adit Ranadive
     [not found]             ` <ea171d6c-871b-2cf0-148c-ca7cd85c0ecd-pghWNbHTmq7QT0dZR+AlfA@public.gmane.org>
2017-03-31 15:50               ` Marcel Apfelbaum
2017-03-31 15:45           ` Marcel Apfelbaum
     [not found]             ` <f7f3fc0e-0a75-2fdc-b3c2-6c3d34ff2978-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-04-03  6:23               ` Leon Romanovsky
     [not found]                 ` <20170403062314.GO20443-U/DQcQFIOTAAJjI8aNfphQ@public.gmane.org>
2017-04-04 13:38                   ` Marcel Apfelbaum
     [not found]                     ` <aa400244-426a-ea62-0ccf-ac5adb76fdd1-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-04-04 16:01                       ` Jason Gunthorpe
     [not found]                         ` <20170404160155.GA1750-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2017-04-06 19:42                           ` Yuval Shaia
2017-04-06 20:38                             ` Jason Gunthorpe
2017-04-04 17:33                       ` Leon Romanovsky
     [not found]                         ` <20170404173349.GY20443-U/DQcQFIOTAAJjI8aNfphQ@public.gmane.org>
2017-04-06 19:45                           ` Yuval Shaia
2017-04-06 20:54                             ` Jason Gunthorpe [this message]
2017-04-03  6:27           ` Leon Romanovsky

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