linux-kernel - Re: [Patch v4 03/12] net: mana: Handle vport sharing between devices

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Message-ID: <YuloD7WkRMs7ZIXk@ziepe.ca>
Date:   Tue, 2 Aug 2022 15:08:15 -0300
From:   Jason Gunthorpe <jgg@...pe.ca>
To:     Long Li <longli@...rosoft.com>
Cc:     Dexuan Cui <decui@...rosoft.com>,
        KY Srinivasan <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Wei Liu <wei.liu@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Leon Romanovsky <leon@...nel.org>,
        "edumazet@...gle.com" <edumazet@...gle.com>,
        "shiraz.saleem@...el.com" <shiraz.saleem@...el.com>,
        Ajay Sharma <sharmaajay@...rosoft.com>,
        "linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>
Subject: Re: [Patch v4 03/12] net: mana: Handle vport sharing between devices

On Fri, Jul 29, 2022 at 09:20:05PM +0000, Long Li wrote:
> > > the Mellanox NICs implement the RAW_QP. IMHO, it's better to have the
> > > user explicitly decide whether to use Ethernet or RDMA RAW_QP on a
> > > specific port.
> > 
> > It should all be carefully documented someplace.
> 
> The use case for RAW_QP is from user-mode. Is it acceptable that we
> document the detailed usage in rdma-core?

Yes, but add a suitable comment someplace in the kernel too

Jason