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Message-ID: <b0cdace8-5aa2-ce78-7cbf-4edf87dbc3a6@mistywest.com>
Date:   Sun, 30 Apr 2023 07:08:21 -0700
From:   Ron Eggler <ron.eggler@...tywest.com>
To:     netdev@...r.kernel.org
Subject: Unable to TX data on VSC8531

Hi,

I've posted here previously about the bring up of two network interfaces 
on an embedded platform that is using two the Microsemi VSC8531 PHYs. 
(previous thread: issues to bring up two VSC8531 PHYs, Thanks to Heiner 
Kallweit & Andrew Lunn).
I'm able to seemingly fully access & operate the network interfaces 
through ifconfig (and the ip commands) and I set the ip address to match 
my /24 network. However, while it looks like I can receive & see traffic 
on the line with tcpdump, it appears like none of my frames can go out 
in TX direction and hence entries in my arp table mostly remain 
incomplete (and if there actually happens to be a complete entry, 
sending anything to it doesn't seem to work and the TX counters in 
ifconfig stay at 0. How can I further troubleshoot this? I have set the 
phy-mode to rgmii-id in the device tree and have experimented with all 
the TX_CLK delay register settings in the PHY but have failed to make 
any progress.

Thank you,
Ron

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