netdev - Re: [PATCH mlx5-next 1/2] net/mlx5: Add new timestamp mode bits

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Message-ID: <20210209115254.283fbb71@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Tue, 9 Feb 2021 11:52:54 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Leon Romanovsky <leon@...nel.org>
Cc:     Doug Ledford <dledford@...hat.com>,
        Jason Gunthorpe <jgg@...dia.com>,
        Aharon Landau <aharonl@...dia.com>, linux-rdma@...r.kernel.org,
        Maor Gottlieb <maorg@...dia.com>, netdev@...r.kernel.org,
        Saeed Mahameed <saeedm@...dia.com>
Subject: Re: [PATCH mlx5-next 1/2] net/mlx5: Add new timestamp mode bits

On Tue, 9 Feb 2021 21:14:24 +0200 Leon Romanovsky wrote:
> On Tue, Feb 09, 2021 at 10:28:25AM -0800, Jakub Kicinski wrote:
> > On Tue,  9 Feb 2021 15:11:06 +0200 Leon Romanovsky wrote:  
> > You also need to CC Richard.  
> 
> We are not talking about PTP, but about specific to RDMA timestamp mechanism
> which is added to the CQE (completion queue entry) per-user request when
> he/she creates CQ (completion queue). User has an option to choose the format
> of it for every QP/RQ/SQ.

I see. Perhaps Richard won't be interested then but best to give him 
a chance.

Not directly related to series at hand but how is the clock synchronized
between system and device for the real time option?