linux-kernel - Re: Aquantia PHY in OCSGMII mode?

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Message-ID: <20250804160037.bqfb2cmwfay42zka@skbuf>
Date: Mon, 4 Aug 2025 19:00:37 +0300
From: Vladimir Oltean <vladimir.oltean@....com>
To: Alexander Wilhelm <alexander.wilhelm@...termo.com>
Cc: "Russell King (Oracle)" <linux@...linux.org.uk>,
	Andrew Lunn <andrew@...n.ch>,
	Heiner Kallweit <hkallweit1@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: Aquantia PHY in OCSGMII mode?

On Mon, Aug 04, 2025 at 04:47:03PM +0200, Alexander Wilhelm wrote:
> I’ve applied this patch as well, which brought me a step further. Unfortunately,
> I still don’t get a ping response, although the configuration looks correct to
> me. Below are the logs and the `ethtool` output I’m seeing:
> 
>     user@...t:~# logread | grep eth
>     kern.info kernel: [   20.777530] fsl_dpaa_mac ffe4e6000.ethernet: FMan MEMAC
>     kern.info kernel: [   20.782840] fsl_dpaa_mac ffe4e6000.ethernet: FMan MAC address: 00:00:5b:05:a2:cb
>     kern.info kernel: [   20.793126] fsl_dpaa_mac ffe4e6000.ethernet eth0: Probed interface eth0
>     kern.info kernel: [   31.058431] usbcore: registered new interface driver cdc_ether
>     user.notice netifd: Added device handler type: veth
>     kern.info kernel: [   48.171837] fsl_dpaa_mac ffe4e6000.ethernet eth0: PHY [0x0000000ffe4fd000:07] driver [Aquantia AQR115] (irq=POLL)
>     kern.info kernel: [   48.171861] fsl_dpaa_mac ffe4e6000.ethernet eth0: configuring for phy/2500base-x link mode
>     kern.info kernel: [   48.181338] br-lan: port 1(eth0) entered blocking state
>     kern.info kernel: [   48.181363] br-lan: port 1(eth0) entered disabled state
>     kern.info kernel: [   48.181399] fsl_dpaa_mac ffe4e6000.ethernet eth0: entered allmulticast mode
>     kern.info kernel: [   48.181577] fsl_dpaa_mac ffe4e6000.ethernet eth0: entered promiscuous mode
>     kern.info kernel: [   53.304459] fsl_dpaa_mac ffe4e6000.ethernet eth0: Link is Up - 2.5Gbps/Full - flow control rx/tx
>     kern.info kernel: [   53.304629] br-lan: port 1(eth0) entered blocking state
>     kern.info kernel: [   53.304642] br-lan: port 1(eth0) entered forwarding state
>     daemon.notice netifd: Network device 'eth0' link is up
>     daemon.info lldpd[6849]: libevent 2.1.12-stable initialized with epoll method
>     daemon.info charon: 10[KNL] flags changed for fe80::200:5bff:fe05:a2cb on eth0
> 
> user@...t:~# ethtool eth0
>     Settings for eth0:
>         Supported ports: [ TP MII ]
>         Supported link modes:   10baseT/Full
>                                 100baseT/Full
>                                 1000baseT/Full
>                                 2500baseT/Full
>         Supported pause frame use: Symmetric Receive-only
>         Supports auto-negotiation: Yes
>         Supported FEC modes: Not reported
>         Advertised link modes:  10baseT/Full
>                                 100baseT/Full
>                                 1000baseT/Full
>                                 2500baseT/Full
>         Advertised pause frame use: Symmetric Receive-only
>         Advertised auto-negotiation: Yes
>         Advertised FEC modes: Not reported
>         Link partner advertised link modes:  100baseT/Full
>                                              1000baseT/Full
>                                              10000baseT/Full
>                                              2500baseT/Full
>                                              5000baseT/Full
>         Link partner advertised pause frame use: Symmetric Receive-only
>         Link partner advertised auto-negotiation: Yes
>         Link partner advertised FEC modes: Not reported
>         Speed: 2500Mb/s
>         Duplex: Full
>         Port: Twisted Pair
>         PHYAD: 7
>         Transceiver: external
>         Auto-negotiation: on
>         MDI-X: on
>         Current message level: 0x00002037 (8247)
>                                drv probe link ifdown ifup hw
>         Link detected: yes
> 
> 
> I will continue investigating why the ping isn’t working and will share any new
> findings as soon as I have them. Thanks again for your support!

Can you apply the following patch, which adds support for ethtool
counters coming from the mEMAC, and dump them?

ethtool -S eth0 --groups eth-mac eth-phy eth-ctrl rmon | grep -v ': 0'

Could you then compare this to:

ethtool --phy-statistics eth0 | grep -v ': 0'

?

View attachment "0001-net-fman_memac-report-structured-ethtool-counters.patch" of type "text/x-diff" (7677 bytes)