netdev - Re: [PATCH net-next v6 4/5] net: ti: icssg-prueth: Enable HSR Tx duplication, Tx Tag and Rx Tag offload

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Message-ID: <1797e2e3-e500-4e35-902b-07f173d0e67b@kernel.org>
Date: Wed, 11 Sep 2024 14:58:45 +0300
From: Roger Quadros <rogerq@...nel.org>
To: MD Danish Anwar <danishanwar@...com>, robh@...nel.org,
 jan.kiszka@...mens.com, dan.carpenter@...aro.org, r-gunasekaran@...com,
 saikrishnag@...vell.com, andrew@...n.ch, javier.carrasco.cruz@...il.com,
 jacob.e.keller@...el.com, diogo.ivo@...mens.com, horms@...nel.org,
 richardcochran@...il.com, pabeni@...hat.com, kuba@...nel.org,
 edumazet@...gle.com, davem@...emloft.net
Cc: linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, srk@...com,
 Vignesh Raghavendra <vigneshr@...com>
Subject: Re: [PATCH net-next v6 4/5] net: ti: icssg-prueth: Enable HSR Tx
 duplication, Tx Tag and Rx Tag offload



On 11/09/2024 11:16, MD Danish Anwar wrote:
> From: Ravi Gunasekaran <r-gunasekaran@...com>
> 
> The HSR stack allows to offload its Tx packet duplication functionality to
> the hardware. Enable this offloading feature for ICSSG driver. Add support
> to offload HSR Tx Tag Insertion and Rx Tag Removal and duplicate discard.
> 
> hsr tag insertion offload and hsr dup offload are tightly coupled in
> firmware implementation. Both these features need to be enabled / disabled
> together.
> 
> Duplicate discard is done as part of RX tag removal and it is
> done by the firmware. When driver sends the r30 command
> ICSSG_EMAC_HSR_RX_OFFLOAD_ENABLE, firmware does RX tag removal as well as
> duplicate discard.
> 
> Signed-off-by: Ravi Gunasekaran <r-gunasekaran@...com>
> Signed-off-by: MD Danish Anwar <danishanwar@...com>

Reviewed-by: Roger Quadros <rogerq@...nel.org>