linux-kernel - RE: [PATCH net-next v3] rtase: Add ndo_setup_tc support for CBS offload in traffic control setup

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Message-ID: <b9fcab27bc6a4d35ba32438623e5b259@realtek.com>
Date: Wed, 16 Apr 2025 07:04:09 +0000
From: Justin Lai <justinlai0215@...ltek.com>
To: Jakub Kicinski <kuba@...nel.org>
CC: "davem@...emloft.net" <davem@...emloft.net>,
        "edumazet@...gle.com"
	<edumazet@...gle.com>,
        "pabeni@...hat.com" <pabeni@...hat.com>,
        "andrew+netdev@...n.ch" <andrew+netdev@...n.ch>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "horms@...nel.org"
	<horms@...nel.org>,
        Ping-Ke Shih <pkshih@...ltek.com>,
        Larry Chiu
	<larry.chiu@...ltek.com>
Subject: RE: [PATCH net-next v3] rtase: Add ndo_setup_tc support for CBS offload in traffic control setup

> 
> On Mon, 14 Apr 2025 11:42:02 +0800 Justin Lai wrote:
> > Add support for ndo_setup_tc to enable CBS offload functionality as
> > part of traffic control configuration for network devices.
> 
> This is some semi-switch-like device right? Or am I misremembering?
> Could you clarify where the limits are applied?
> From CPU into the switch or on the switch ports?
> Should be documented in the commit msg.
> --
> pw-bot: cr

Hi Jakub,

Yes, this device is a switch, and CBS is applied from the CPU to the
switch. More specifically, CBS is applied at the GMAC in the topmost
architecture diagram in this driver. I will post a new version and
add this information to the commit message.

Thanks,
Justin