From: patchwork-bot+netdevbpf@kernel.org
To: Nicolai Buchwitz <nb@tipi-net.de>
Cc: netdev@vger.kernel.org, opendmb@gmail.com,
florian.fainelli@broadcom.com,
bcm-kernel-feedback-list@broadcom.com, andrew+netdev@lunn.ch,
davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
pabeni@redhat.com, o.rempel@pengutronix.de,
rmk+kernel@armlinux.org.uk, andrew@lunn.ch
Subject: Re: [PATCH net v2] net: bcmgenet: fix broken EEE by converting to phylib-managed state
Date: Wed, 11 Mar 2026 03:30:06 +0000 [thread overview]
Message-ID: <177319980605.3028873.12544875647923886814.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260310054935.1238594-1-nb@tipi-net.de>
Hello:
This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:
On Tue, 10 Mar 2026 06:49:35 +0100 you wrote:
> The bcmgenet EEE implementation is broken in several ways.
> phy_support_eee() is never called, so the PHY never advertises EEE
> and phylib never sets phydev->enable_tx_lpi. bcmgenet_mac_config()
> checks priv->eee.eee_enabled to decide whether to enable the MAC
> LPI logic, but that field is never initialised to true, so the MAC
> never enters Low Power Idle even when EEE is negotiated - wasting
> the power savings EEE is designed to provide. The only way to get
> EEE working at all is a manual 'ethtool --set-eee eth0 eee on' after
> every link-up, and even then bcmgenet_get_eee() immediately clobbers
> the reported state because phy_ethtool_get_eee() overwrites
> eee_enabled and tx_lpi_enabled with the uninitialised PHY eee_cfg
> values. Finally, bcmgenet_mac_config() is only called on link-up,
> so EEE is never disabled in hardware on link-down.
>
> [...]
Here is the summary with links:
- [net,v2] net: bcmgenet: fix broken EEE by converting to phylib-managed state
https://git.kernel.org/netdev/net/c/908c344d5cfa
You are awesome, thank you!
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prev parent reply other threads:[~2026-03-11 3:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-10 5:49 [PATCH net v2] net: bcmgenet: fix broken EEE by converting to phylib-managed state Nicolai Buchwitz
2026-03-11 3:30 ` patchwork-bot+netdevbpf [this message]
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