linux-kernel - Re: [PATCH rdma-next 3/7] RDMA/mlx5: Store in the cache mkeys instead of mrs

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Message-ID: <20211208204436.GG6385@nvidia.com>
Date:   Wed, 8 Dec 2021 16:44:36 -0400
From:   Jason Gunthorpe <jgg@...dia.com>
To:     Leon Romanovsky <leon@...nel.org>
Cc:     Aharon Landau <aharonl@...dia.com>, linux-kernel@...r.kernel.org,
        linux-rdma@...r.kernel.org
Subject: Re: [PATCH rdma-next 3/7] RDMA/mlx5: Store in the cache mkeys
 instead of mrs

On Mon, Dec 06, 2021 at 11:10:48AM +0200, Leon Romanovsky wrote:
> From: Aharon Landau <aharonl@...dia.com>
> 
> Currently, the driver stores the entire mlx5_ib_mr struct in the cache,
> although the only use of the cached MR is the mkey. Store only the mkey
> in the cache.
> 
> Signed-off-by: Aharon Landau <aharonl@...dia.com>
> Signed-off-by: Leon Romanovsky <leonro@...dia.com>
>  drivers/infiniband/hw/mlx5/mlx5_ib.h |  21 ++---
>  drivers/infiniband/hw/mlx5/mr.c      | 135 +++++++++++++--------------
>  2 files changed, 71 insertions(+), 85 deletions(-)
> 
> diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
> index d0224f468169..9b12e970ca01 100644
> +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
> @@ -668,14 +668,6 @@ struct mlx5_ib_mr {

Shouldn't this delete cache_ent too?

Jason