netdev - Re: [RFC iproute2 0/8] RDMA tool

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Message-ID: <20170504182542.GD22833@mtr-leonro.local>
Date:   Thu, 4 May 2017 21:25:42 +0300
From:   Leon Romanovsky <leon@...nel.org>
To:     Bart Van Assche <Bart.VanAssche@...disk.com>
Cc:     "stephen@...workplumber.org" <stephen@...workplumber.org>,
        "dledford@...hat.com" <dledford@...hat.com>,
        "jiri@...lanox.com" <jiri@...lanox.com>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "ram.amrani@...ium.com" <ram.amrani@...ium.com>,
        "sagi@...mberg.me" <sagi@...mberg.me>,
        "ogerlitz@...lanox.com" <ogerlitz@...lanox.com>,
        "dennis.dalessandro@...el.com" <dennis.dalessandro@...el.com>,
        "hch@....de" <hch@....de>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "jgunthorpe@...idianresearch.com" <jgunthorpe@...idianresearch.com>,
        "ariela@...lanox.com" <ariela@...lanox.com>
Subject: Re: [RFC iproute2 0/8] RDMA tool

On Thu, May 04, 2017 at 06:10:54PM +0000, Bart Van Assche wrote:
> On Thu, 2017-05-04 at 21:02 +0300, Leon Romanovsky wrote:
> > Following our discussion both in mailing list [1] and at the LPC 2016 [2],
> > we would like to propose this RDMA tool to be part of iproute2 package
> > and finally improve this situation.
>
> Hello Leon,
>
> Although I really appreciate your work: can you clarify why you would like to
> add *RDMA* functionality to an *IP routing* tool? I haven't found any motivation
> for adding RDMA functionality to iproute2 in [1].

We are planning to reuse the same infrastructure provided by iproute2,
like netlink parsing, access to distributions, same CLI and same standards.

Right now, RDMA is already tightened to netdev: iWARP, RoCE, IPoIB, HFI-VNIC.
Many drivers (mlx, qed, i40, cxgb) are sharing code between net and
RDMA.

I do expect that iproute2 will be installed on every machine with any
type of connection, including IB and OPA.

So I think that it is enough to be part of that suite and don't invent
our own for one specific tool.

Thanks

>
> Thanks,
>
> Bart.--
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