netdev - Re: [PATCH net-next v2 2/3] net: txgbe: support TX head write-back mode

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Message-ID: <fd171a3b-144c-48df-b284-f14d0398f8f6@intel.com>
Date: Fri, 24 Oct 2025 17:37:35 -0700
From: Jacob Keller <jacob.e.keller@...el.com>
To: Jiawen Wu <jiawenwu@...stnetic.com>, <netdev@...r.kernel.org>, Andrew Lunn
	<andrew+netdev@...n.ch>, "David S. Miller" <davem@...emloft.net>, "Eric
 Dumazet" <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
	<pabeni@...hat.com>, Simon Horman <horms@...nel.org>
CC: Mengyuan Lou <mengyuanlou@...-swift.com>
Subject: Re: [PATCH net-next v2 2/3] net: txgbe: support TX head write-back
 mode



On 10/22/2025 6:45 PM, Jiawen Wu wrote:
> TX head write-back mode is supported on AML devices. When it is enabled,
> the hardware no longer writes the descriptors DD one by one, but write
> back pointer of completion descriptor to the head_wb address.
> 
> Signed-off-by: Jiawen Wu <jiawenwu@...stnetic.com>
> ---
Reviewed-by: Jacob Keller <jacob.e.keller@...el.com>


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