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

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Message-ID: <20170505085457.0029edc9@griffin>
Date:   Fri, 5 May 2017 08:54:57 +0200
From:   Jiri Benc <jbenc@...hat.com>
To:     Leon Romanovsky <leon@...nel.org>
Cc:     Stephen Hemminger <stephen@...workplumber.org>,
        Doug Ledford <dledford@...hat.com>,
        Leon Romanovsky <leonro@...lanox.com>,
        Jiri Pirko <jiri@...lanox.com>,
        Ariel Almog <ariela@...lanox.com>,
        Dennis Dalessandro <dennis.dalessandro@...el.com>,
        Ram Amrani <ram.amrani@...ium.com>,
        Bart Van Assche <Bart.VanAssche@...disk.com>,
        Sagi Grimberg <sagi@...mberg.me>,
        Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
        Christoph Hellwig <hch@....de>,
        Or Gerlitz <ogerlitz@...lanox.com>,
        Linux RDMA <linux-rdma@...r.kernel.org>,
        Linux Netdev <netdev@...r.kernel.org>
Subject: Re: [RFC iproute2 0/8] RDMA tool

On Thu,  4 May 2017 21:02:08 +0300, Leon Romanovsky wrote:
> In order to close object model, ensure reuse of existing code and make this
> tool usable from day one, we decided to implement wrappers over legacy sysfs
> prior to implementing netlink functionality. As a nice bonus, it will allow
> to use this tool with old kernels too.

This sounds wrong. We don't support legacy ioctl interface for the 'ip'
command, either. I think rdma should be converted to netlink first and
the new tool should only use netlink.

 Jiri