netdev - Re: Re: [PATCH] net: phy: rtl8211f add ethtool set wol function

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Date: Tue, 11 Jun 2024 23:04:41 +0800
From: yangfeng <yangfeng59949@....com>
To: andrew@...n.ch
Cc: netdev@...r.kernel.org,
	yangfeng59949@....com
Subject: Re: Re: [PATCH] net: phy: rtl8211f add ethtool set wol function

> Please explain in detail what you mean. Why cannot INTB be used?

The PMEB mode allows you to set up one of the wakeup events individually, such as link change event, magic packet event, unicast event, etc. And INTB mode is to enable all events.

> What happens when somebody else uses this PHY, say on an ARM system, and uboot does not set PMEB?

This code does not affect the INTB even if the PMEB mode is not set. The INTB/PMEB pin is designed to notify in case of both interrupt and wol events. The default mode of this pin is INTB(page 0xd40, Reg 22, bit[5]=0), if PMEB mode is selected (page 0xd40, Reg 22, bit[5]=1), the pin becomes a fully functional PMEB pin.