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

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Message-ID: <3a6e95ea-cdb0-4239-bb47-b29df45f52cc@linux.dev>
Date: Thu, 20 Feb 2025 11:58:30 -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 2/18/25 11:00, Sean Anderson wrote:
> 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.

I had a look, and BQL is already implemented for dmaengine.

--Sean