[PATCH net-next 1/3] net: stmmac: clear half-duplex caps where unsupported
Maxime Chevallier
maxime.chevallier at bootlin.com
Fri Jan 30 11:18:44 PST 2026
On 30/01/2026 19:09, Russell King (Oracle) wrote:
> If you look at /sys/kernel/debug/stmmaceth/ethX/dma_cap, it should
> say whether half duplex is supported (I guess in your case it will
> be, it's probably very unlikely not to be.) However, would be worth
> knowing whether the if() is taken or not!
>
Just rebuilt a kernel w/ debugfs support, and indeed I have :
[...]
10/100 Mbps: Y
1000 Mbps: Y
Half duplex: Y
[...]
So looks like the if() isn't taken :)
Maxime
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