linux-kernel - Re: [PATCH for-next] RDMA/core: Get IB width and speed from netdev

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Message-ID: <ZHi/9SjEiHy8fBf0@nvidia.com>
Date:   Thu, 1 Jun 2023 12:57:41 -0300
From:   Jason Gunthorpe <jgg@...dia.com>
To:     Junxian Huang <huangjunxian6@...ilicon.com>
Cc:     leon@...nel.org, linux-rdma@...r.kernel.org, linuxarm@...wei.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH for-next] RDMA/core: Get IB width and speed from netdev

On Mon, May 22, 2023 at 09:25:02AM +0800, Junxian Huang wrote:
> From: Haoyue Xu <xuhaoyue1@...ilicon.com>
> 
> Logic of retrieving netdev lanes and speed from net_device and
> translating it to IB width and speed. Also, add a generic function
> to translating netdev speed to IB speed.
> 
> Signed-off-by: Haoyue Xu <xuhaoyue1@...ilicon.com>
> Signed-off-by: Luoyouming <luoyouming@...wei.com>
> Signed-off-by: Junxian Huang <huangjunxian6@...ilicon.com>
> ---
>  drivers/infiniband/core/verbs.c | 19 +++++++++++++++++--
>  include/rdma/ib_verbs.h         | 26 ++++++++++++++++++++++++++
>  2 files changed, 43 insertions(+), 2 deletions(-)

Can you explain in the commit message why we'd want to do this?

Jason