linux-kernel - Re: [PATCH v2 2/3] net: mana: Add sched HTB offload support

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Message-ID: <20250422171846.433d620d@kernel.org>
Date: Tue, 22 Apr 2025 17:18:46 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Erni Sri Satya Vennela <ernis@...ux.microsoft.com>
Cc: kys@...rosoft.com, haiyangz@...rosoft.com, wei.liu@...nel.org,
 decui@...rosoft.com, andrew+netdev@...n.ch, davem@...emloft.net,
 edumazet@...gle.com, pabeni@...hat.com, longli@...rosoft.com,
 kotaranov@...rosoft.com, horms@...nel.org, mhklinux@...look.com,
 pasha.tatashin@...een.com, kent.overstreet@...ux.dev,
 brett.creeley@....com, schakrabarti@...ux.microsoft.com,
 shradhagupta@...ux.microsoft.com, ssengar@...ux.microsoft.com,
 rosenp@...il.com, paulros@...rosoft.com, linux-hyperv@...r.kernel.org,
 netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/3] net: mana: Add sched HTB offload support

On Tue, 22 Apr 2025 12:48:30 -0700 Erni Sri Satya Vennela wrote:
> On Mon, Apr 21, 2025 at 05:03:49PM -0700, Jakub Kicinski wrote:
> > On Sun, 20 Apr 2025 23:33:39 -0700 Erni Sri Satya Vennela wrote:  
> > > This controller can offload only one HTB leaf.  
> >   
> We selected tc-htb for our current use case because we plan to support
> multiple speed classes in the future.

Which net-shapers also support.

IIRC HTB offload requires that you dynamically allocate the Tx queues.