linux-kernel - Re: [PATCH net-next] net: xilinx: axienet: Implement BQL

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Message-ID: <aa58373c-a4ac-4994-821b-40574e19be3d@linux.dev>
Date: Tue, 18 Feb 2025 11:00:52 -0500
From: Sean Anderson <sean.anderson@...ux.dev>
To: "Gupta, Suraj" <Suraj.Gupta2@....com>,
 "Pandey, Radhey Shyam" <radhey.shyam.pandey@....com>,
 "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Cc: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
 Paolo Abeni <pabeni@...hat.com>, "David S . Miller" <davem@...emloft.net>,
 Jakub Kicinski <kuba@...nel.org>, "Simek, Michal" <michal.simek@....com>,
 "linux-arm-kernel@...ts.infradead.org"
 <linux-arm-kernel@...ts.infradead.org>, Eric Dumazet <edumazet@...gle.com>,
 Andrew Lunn <andrew+netdev@...n.ch>
Subject: Re: [PATCH net-next] net: xilinx: axienet: Implement BQL

On 2/15/25 06:32, Gupta, Suraj wrote:
> 
> 
>> -----Original Message-----
>> From: Sean Anderson <sean.anderson@...ux.dev>
>> Sent: Saturday, February 15, 2025 2:43 AM
>> To: Pandey, Radhey Shyam <radhey.shyam.pandey@....com>;
>> netdev@...r.kernel.org
>> Cc: linux-kernel@...r.kernel.org; Paolo Abeni <pabeni@...hat.com>; David S .
>> Miller <davem@...emloft.net>; Jakub Kicinski <kuba@...nel.org>; Simek, Michal
>> <michal.simek@....com>; linux-arm-kernel@...ts.infradead.org; Eric Dumazet
>> <edumazet@...gle.com>; Andrew Lunn <andrew+netdev@...n.ch>; Sean
>> Anderson <sean.anderson@...ux.dev>
>> Subject: [PATCH net-next] net: xilinx: axienet: Implement BQL
>> 
>> Caution: This message originated from an External Source. Use proper caution
>> when opening attachments, clicking links, or responding.
>> 
>> 
>> Implement byte queue limits to allow queueing disciplines to account for packets
>> enqueued in the ring buffers but not yet transmitted.
>> 
> 
> Could you please check if BQL can be implemented for DMAengine flow?

I can have a look, but TBH I do not test the dma engine configuration since it is
so much slower.

--Sean