linux-kernel - Re: [PATCH net-next 03/16] devlink: Add devlink reload limit option

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Date:   Sun, 4 Oct 2020 09:42:47 +0300
From:   Moshe Shemesh <moshe@...dia.com>
To:     Jiri Pirko <jiri@...nulli.us>, Moshe Shemesh <moshe@...lanox.com>
CC:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, Jiri Pirko <jiri@...dia.com>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next 03/16] devlink: Add devlink reload limit option


On 10/3/2020 10:51 AM, Jiri Pirko wrote:
> Thu, Oct 01, 2020 at 03:59:06PM CEST, moshe@...lanox.com wrote:
>
> [...]
>
>> enum devlink_attr {
>> 	/* don't change the order or add anything between, this is ABI! */
>> 	DEVLINK_ATTR_UNSPEC,
>> @@ -507,6 +524,7 @@ enum devlink_attr {
>>
>> 	DEVLINK_ATTR_RELOAD_ACTION,		/* u8 */
>> 	DEVLINK_ATTR_RELOAD_ACTIONS_PERFORMED,	/* u64 */
>> +	DEVLINK_ATTR_RELOAD_LIMIT,	/* u8 */
> Hmm, why there could be specified only single "limit"? I believe this
> should be a bitfield. Same for the internal api to the driver.


Why bitfield ? Either the user asks for a specific limit or he doesn't 
ask for any (unspecified).

If the user doesn't need limitation he will not specify a limit.

> [...]