netdev - Re: [net 13/18] RDMA/mlx5: Fix timestamp default mode

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Message-ID: <20210310192521.GO444867@ziepe.ca>
Date:   Wed, 10 Mar 2021 15:25:21 -0400
From:   Jason Gunthorpe <jgg@...pe.ca>
To:     Saeed Mahameed <saeed@...nel.org>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org, Maor Gottlieb <maorg@...dia.com>,
        Saeed Mahameed <saeedm@...dia.com>
Subject: Re: [net 13/18] RDMA/mlx5: Fix timestamp default mode

On Wed, Mar 10, 2021 at 11:03:37AM -0800, Saeed Mahameed wrote:
> From: Maor Gottlieb <maorg@...dia.com>
> 
> 1. Don't set the ts_format bit to default when it reserved - device is
>    running in the old mode (free running).
> 2. XRC doesn't have a CQ therefore the ts format in the QP
>    context should be default / free running.
> 3. Set ts_format to WQ.
> 
> Fixes: 2fe8d4b87802 ("RDMA/mlx5: Fail QP creation if the device can not support the CQE TS")
> Signed-off-by: Maor Gottlieb <maorg@...dia.com>
> Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
> ---
>  drivers/infiniband/hw/mlx5/qp.c | 18 ++++++++++++++----
>  1 file changed, 14 insertions(+), 4 deletions(-)

Acked-by: Jason Gunthorpe <jgg@...dia.com>

Jason