Thread (22 messages) 22 messages, 4 authors, 2023-08-31

Re: [PATCH 2/2] net: phy: Provide Module 4 KSZ9477 errata (DS80000754C)

From: "Russell King (Oracle)" <linux@armlinux.org.uk>
Date: 2023-08-31 07:13:31
Also in: lkml

On Thu, Aug 31, 2023 at 06:40:04AM +0200, Oleksij Rempel wrote:
Hi Lukasz,

On Wed, Aug 30, 2023 at 06:38:18PM +0200, Lukasz Majewski wrote:
quoted
Hi Oleksij,
 
quoted
The implementation as you suggested seems to work :-)

The ksz_get_phy_flags() - where the MICREL_NO_EEE is set is executed
before ksz9477_config_init().

And then the eee_broken_modes are taken into account.

# ethtool --show-eee lan1
EEE Settings for lan1:
        EEE status: disabled
        Tx LPI: 0 (us)
        Supported EEE link modes:  100baseT/Full 
                                   1000baseT/Full 
        Advertised EEE link modes:  Not reported
        Link partner advertised EEE link modes:  Not reported

I will prepare tomorrow a proper patch.
can you please by the way remove this line:
https://elixir.bootlin.com/linux/v6.5/source/drivers/net/phy/micrel.c#L1803

it is obsolet by eee_broken_modes.
... and if possible verify on the link partner side that indeed no
EEE modes are being advertised by the Micrel device.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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