netdev - Re: [PATCH stable 5.15 v3] net: bcmgenet: Fix EEE implementation

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Message-ID: <a9f22838-e90d-4013-be24-127610d64d42@intel.com>
Date: Wed, 14 Feb 2024 12:24:12 -0800
From: Jacob Keller <jacob.e.keller@...el.com>
To: Florian Fainelli <florian.fainelli@...adcom.com>, <stable@...r.kernel.org>
CC: Russell King <rmk+kernel@...linux.org.uk>, Jakub Kicinski
	<kuba@...nel.org>, Doug Berger <opendmb@...il.com>, Florian Fainelli
	<f.fainelli@...il.com>, "David S. Miller" <davem@...emloft.net>, "open
 list:BROADCOM GENET ETHERNET DRIVER" <bcm-kernel-feedback-list@...adcom.com>,
	"open list:BROADCOM GENET ETHERNET DRIVER" <netdev@...r.kernel.org>, "open
 list" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH stable 5.15 v3] net: bcmgenet: Fix EEE implementation



On 2/11/2024 5:48 PM, Florian Fainelli wrote:
> commit a9f31047baca57d47440c879cf259b86f900260c upstream
> 
> We had a number of short comings:
> 
> - EEE must be re-evaluated whenever the state machine detects a link
>   change as wight be switching from a link partner with EEE
>   enabled/disabled
> 
> - tx_lpi_enabled controls whether EEE should be enabled/disabled for the
>   transmit path, which applies to the TBUF block
> 
> - We do not need to forcibly enable EEE upon system resume, as the PHY
>   state machine will trigger a link event that will do that, too
> 
> Fixes: 6ef398ea60d9 ("net: bcmgenet: add EEE support")
> Signed-off-by: Florian Fainelli <florian.fainelli@...adcom.com>
> Reviewed-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
> Link: https://lore.kernel.org/r/20230606214348.2408018-1-florian.fainelli@broadcom.com
> Signed-off-by: Jakub Kicinski <kuba@...nel.org>
> ---

Reviewed-by: Jacob Keller <jacob.e.keller@...el.com>