From: Andrew Lunn <andrew@lunn.ch>
To: James Hilliard <james.hilliard1@gmail.com>
Cc: Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Chen-Yu Tsai <wens@kernel.org>,
Jernej Skrabec <jernej.skrabec@gmail.com>,
Samuel Holland <samuel@sholland.org>,
Andre Przywara <andre.przywara@arm.com>,
Richard Genoud <richard.genoud@bootlin.com>,
Maxime Ripard <mripard@kernel.org>,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
Giuseppe Cavallaro <peppe.cavallaro@st.com>,
Jose Abreu <joabreu@synopsys.com>,
Maxime Chevallier <maxime.chevallier@bootlin.com>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Heiner Kallweit <hkallweit1@gmail.com>,
Russell King <linux@armlinux.org.uk>,
Saravana Kannan <saravanak@kernel.org>,
Lee Jones <lee@kernel.org>, Heiko Stuebner <heiko@sntech.de>,
netdev@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org,
linux-stm32@st-md-mailman.stormreply.com, mfd@lists.linux.dev,
linux-rockchip@lists.infradead.org
Subject: Re: [PATCH 15/21] net: phylink: allow PHY-autonomous EEE without MAC LPI
Date: Mon, 3 Aug 2026 15:23:46 +0200 [thread overview]
Message-ID: <ad954550-9dec-4e0d-8636-0b6cb379421e@lunn.ch> (raw)
In-Reply-To: <20260802-submit-acx00-of-dynamic-v1-v1-15-0a53cd9e21cc@gmail.com>
On Sun, Aug 02, 2026 at 11:14:25PM -0600, James Hilliard wrote:
> Phylink treats a MAC which implements its LPI operations but advertises no
> LPI capability as incapable of EEE. It disables PHY EEE during attach and
> rejects ethtool EEE requests. The same problem occurs when the MAC supports
> LPI on another interface but not on the interface currently connected to
> the PHY. Both cases are incorrect when the attached PHY can generate LPI
> autonomously without help from the MAC.
What you are talking about is SmartEEE, or other such names. It is not
part of 802.3, so there is no agreed upon name for it.
You are correct, phylink does not support it. It also needs a lot of
thought and careful design, which is why it has not been implemented
yet. Please search back through the netdev archive and find the
discussion.
Andrew
next prev parent reply other threads:[~2026-08-03 13:24 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-03 5:14 [PATCH 00/21] net: phy: add X-Powers AC200/AC300 EPHY support James Hilliard
2026-08-03 5:14 ` [PATCH 01/21] dt-bindings: net: allwinner: add H616 EMAC1 James Hilliard
2026-08-03 13:03 ` Andrew Lunn
2026-08-03 5:14 ` [PATCH 02/21] net: stmmac: sun8i: add support for Allwinner " James Hilliard
2026-08-03 5:14 ` [PATCH 03/21] arm64: dts: allwinner: h616: add EMAC1 controller James Hilliard
2026-08-03 7:01 ` Krzysztof Kozlowski
2026-08-03 5:14 ` [PATCH 04/21] net: mdio: factor out OF child registration helpers James Hilliard
2026-08-03 5:14 ` [PATCH 05/21] net: mdio: make device map changes hotplug-safe James Hilliard
2026-08-03 5:14 ` [PATCH 06/21] net: mdio: support dynamic OF device changes James Hilliard
2026-08-03 5:14 ` [PATCH 07/21] dt-bindings: net: x-powers: add AC200 EPHY control James Hilliard
2026-08-03 13:40 ` Andrew Lunn
2026-08-03 18:03 ` James Hilliard
2026-08-03 5:14 ` [PATCH 08/21] dt-bindings: mfd: x-powers: add AC200 James Hilliard
2026-08-03 7:07 ` Krzysztof Kozlowski
2026-08-03 7:54 ` James Hilliard
2026-08-03 8:20 ` Krzysztof Kozlowski
2026-08-03 8:21 ` Krzysztof Kozlowski
2026-08-03 16:36 ` James Hilliard
2026-08-03 21:34 ` James Hilliard
2026-08-03 22:06 ` Andrew Lunn
2026-08-03 13:18 ` Andrew Lunn
2026-08-03 16:45 ` James Hilliard
2026-08-03 16:51 ` Chen-Yu Tsai
2026-08-04 2:14 ` Andrew Lunn
2026-08-03 5:14 ` [PATCH 09/21] mfd: add X-Powers AC200 support James Hilliard
2026-08-03 5:14 ` [PATCH 10/21] net: phy: add X-Powers AC200 EPHY control driver James Hilliard
2026-08-03 13:50 ` Andrew Lunn
2026-08-03 16:09 ` James Hilliard
2026-08-03 17:48 ` Andrew Lunn
2026-08-03 18:45 ` James Hilliard
2026-08-04 2:07 ` Chen-Yu Tsai
2026-08-04 4:32 ` James Hilliard
2026-08-04 2:22 ` Andrew Lunn
2026-08-04 4:37 ` James Hilliard
2026-08-04 14:54 ` Andrew Lunn
2026-08-04 15:26 ` James Hilliard
2026-08-04 18:04 ` Andrew Lunn
2026-08-04 18:29 ` James Hilliard
2026-08-04 19:44 ` Andrew Lunn
2026-08-03 5:14 ` [PATCH 11/21] dt-bindings: net: x-powers: add AC300 EPHY control James Hilliard
2026-08-03 5:14 ` [PATCH 12/21] net: phy: add X-Powers AC300 EPHY control driver James Hilliard
2026-08-03 5:14 ` [PATCH 13/21] dt-bindings: net: x-powers: add AC200/AC300 EPHY James Hilliard
2026-08-03 5:14 ` [PATCH 14/21] net: phy: support configuring PHY-autonomous Tx LPI James Hilliard
2026-08-03 5:14 ` [PATCH 15/21] net: phylink: allow PHY-autonomous EEE without MAC LPI James Hilliard
2026-08-03 13:23 ` Andrew Lunn [this message]
2026-08-03 5:14 ` [PATCH 16/21] net: phy: add X-Powers AC200/AC300 EPHY driver James Hilliard
2026-08-04 15:19 ` Maxime Chevallier
2026-08-03 5:14 ` [PATCH 17/21] arm64: dts: allwinner: h616: add ACx00 EPHY resources James Hilliard
2026-08-03 5:14 ` [PATCH 18/21] arm64: dts: allwinner: orangepi-zero2w: enable Ethernet expansion James Hilliard
2026-08-03 5:14 ` [PATCH 19/21] arm64: dts: allwinner: h6: add AC200 EPHY resources James Hilliard
2026-08-03 5:14 ` [PATCH 20/21] arm64: dts: allwinner: h6: tanix: enable AC200 EPHY James Hilliard
2026-08-03 5:14 ` [PATCH 21/21] arm64: defconfig: enable X-Powers ACx00 Ethernet support James Hilliard
2026-08-03 7:00 ` Krzysztof Kozlowski
2026-08-03 7:22 ` James Hilliard
2026-08-03 13:01 ` [PATCH 00/21] net: phy: add X-Powers AC200/AC300 EPHY support Andrew Lunn
2026-08-03 13:14 ` Andrew Lunn
2026-08-03 13:26 ` Andre Przywara
2026-08-03 13:30 ` Andrew Lunn
2026-08-03 15:57 ` James Hilliard
2026-08-04 5:03 ` Jernej Škrabec
2026-08-04 5:48 ` James Hilliard
2026-08-04 17:38 ` Andrew Lunn
2026-08-04 18:18 ` James Hilliard
2026-08-03 13:52 ` Andrew Lunn
2026-08-03 13:54 ` Andre Przywara
2026-08-03 13:57 ` Andrew Lunn
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