netdev - RE: EEE unsupported on enetc

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID:
 <PAXPR04MB8510A9A1597FEB4037E76DDB88112@PAXPR04MB8510.eurprd04.prod.outlook.com>
Date: Tue, 7 Jan 2025 01:34:26 +0000
From: Wei Fang <wei.fang@....com>
To: Heiner Kallweit <hkallweit1@...il.com>, Vladimir Oltean
	<vladimir.oltean@....com>, Claudiu Manoil <claudiu.manoil@....com>, Clark
 Wang <xiaoning.wang@....com>, Russell King - ARM Linux
	<linux@...linux.org.uk>, Andrew Lunn <andrew@...n.ch>
CC: "netdev@...r.kernel.org" <netdev@...r.kernel.org>, "imx@...ts.linux.dev"
	<imx@...ts.linux.dev>
Subject: RE: EEE unsupported on enetc

> In enetc_phylink_connect() we have the following:
> 
> /* disable EEE autoneg, until ENETC driver supports it */
> memset(&edata, 0, sizeof(struct ethtool_keee));
> phylink_ethtool_set_eee(priv->phylink, &edata);
> 
> Is it a hw constraint (if yes, on all IP versions?) that EEE isn't supported,
> or is just some driver code for lpi timer handling missing?
> Any plans to fix EEE in this driver?

Hi Heiner,

Currently, there are two platforms use the enetc driver, one is LS1028A,
whose ENETC version is v1.0, and the other is i.MX95, whose version is
v4.1. As far as I know, the ENETC hardware of both platforms supports
EEE, but the implementation is different. As the maintainer of i.MX
platform, I definitely sure Clark will add the EEE support for i.MX95 in the
future. But for LS1028A, it is not clear to me whether Vladimir has plans
to support EEE.