netdev - Re: [PATCH net-next v2] net: dqs: introduce IFF_NO

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Date: Wed, 12 Jun 2024 14:40:23 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Jason Xing <kerneljasonxing@...il.com>
Cc: edumazet@...gle.com, pabeni@...hat.com, davem@...emloft.net,
 dsahern@...nel.org, mst@...hat.com, jasowang@...hat.com,
 xuanzhuo@...ux.alibaba.com, eperezma@...hat.com, leitao@...ian.org,
 netdev@...r.kernel.org, Jason Xing <kernelxing@...cent.com>
Subject: Re: [PATCH net-next v2] net: dqs: introduce IFF_NO_BQL private flag
 for non-BQL drivers

On Tue, 11 Jun 2024 11:32:03 +0800 Jason Xing wrote:
> +++ b/include/linux/netdevice.h
> @@ -1649,6 +1649,9 @@ struct net_device_ops {
>   * @IFF_SEE_ALL_HWTSTAMP_REQUESTS: device wants to see calls to
>   *	ndo_hwtstamp_set() for all timestamp requests regardless of source,
>   *	even if those aren't HWTSTAMP_SOURCE_NETDEV.
> + * @IFF_NO_BQL: driver doesn't use BQL for flow control for now. It's used
> + *	to check if we should create byte_queue_limits directory in dqs
> + *	(see netdev_uses_bql())

Sorry for nit but since it's netdevice.h.. can we rephrase the comment
a bit? How about just:

+ * @IFF_NO_BQL: driver doesn't support BQL, don't create "byte_queue_limits"
+ *	directories in sysfs.