netdev - Re: [RFC v3 02/11] IB/hfi-vnic: Virtual Network Interface Controller (VNIC) interface

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Message-ID: <20170208065437.GA6005@mtr-leonro.local>
Date:   Wed, 8 Feb 2017 08:54:37 +0200
From:   Leon Romanovsky <leon@...nel.org>
To:     Jason Gunthorpe <jgunthorpe@...idianresearch.com>
Cc:     "Vishwanathapura, Niranjana" <niranjana.vishwanathapura@...el.com>,
        dledford@...hat.com, linux-rdma@...r.kernel.org,
        netdev@...r.kernel.org, dennis.dalessandro@...el.com,
        ira.weiny@...el.com, Liran Liss <liranl@...lanox.com>
Subject: Re: [RFC v3 02/11] IB/hfi-vnic: Virtual Network Interface Controller
 (VNIC) interface

On Tue, Feb 07, 2017 at 02:19:01PM -0700, Jason Gunthorpe wrote:
> On Tue, Feb 07, 2017 at 12:23:01PM -0800, Vishwanathapura, Niranjana wrote:
> > Add rdma netdev interface to ib device structure allowing rdma netdev
> > devices to be allocated by ib clients.
> > Define HFI VNIC interface between hardware independent VNIC
> > functionality and the hardware dependent VNIC functionality.
>
> This commit message could be a bit clearer.
>
> The alloc_rdma_netdev multiplexer is inteded as a new general
> interface and this adds a protocol definition for ethernet VNIC on
> OPA.
>
> The hope is that ipoib can follow the same example and use the same
> alloc_rdma_netdev entry point. Hopefully Mellanox will look at this
> patch as I have talked to them in the past about doing this...

Jason,

We looked on it and it is useless for us, mainly because of the fact
that most  of the work is done in our net part of the driver.

So, as it looks for now, this ULP exercise will be for HFI only.

Thanks

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