Re: [PATCH] b44: power down PHY when interface down

Matthew Garrett wrote:

On Sat, Jun 30, 2007 at 02:47:35PM +0300, Török Edvin wrote:

When the interface is down (or driver removed), the BroadCom 44xx card remains

powered on, and both its MAC and PHY is using up power.
This patch makes the driver issue a MAC_CTRL_PHY_PDOWN when the interface
is halted, and does a partial chip reset turns off the activity LEDs too.

Do you still get link beat detection when the phy is powered down?

does that matter?

If the interface is down, nic drivers aren't expected to detect link... if userspace wants to find link status it should have the interface up.

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