netdev - Re: [PATCH net-next 6/8] devlink: support directly reading from region memory

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Message-ID: <20221118174957.7c672c75@kernel.org>
Date:   Fri, 18 Nov 2022 17:49:57 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Jacob Keller <jacob.e.keller@...el.com>
Cc:     netdev@...r.kernel.org, Jiri Pirko <jiri@...dia.com>
Subject: Re: [PATCH net-next 6/8] devlink: support directly reading from
 region memory

On Thu, 17 Nov 2022 14:08:01 -0800 Jacob Keller wrote:
> +Regions may optionally allow directly reading from their contents without a
> +snapshot. A driver wishing to enable this for a region should implement the
> +``.read`` callback in the ``devlink_region_ops`` structure.

Perhaps worth adding that direct read has weaker atomicity guarantees
than snapshot? User at the CLI level may not expect the read request
to be broken up into smaller chunks.