Power Mangement for LAN91C111 Ethernet NDIS mini-port

From: Art (Art_at_discussions.microsoft.com)
Date: 08/30/04 

Date: Mon, 30 Aug 2004 11:09:02 -0700

Has anyone implemented power-management functionality for their Ethernet
Miniport? I am straggling with adding power-mangement feature on LAN91C111
mini-port. The device data*** provides step-by-step instructions on what
need to be done to put device into low-power mode and how to recover from
this, but I believe these instructions are not complete.

For example, on transition to low power mode the instructions call for
disabling device interrupt sources, but on transition to full power mode
there are no references to re-enabling interrupts. Also, it is not clear if
anything need to be done with the PHY link after transition to full power
mode.

I was able to recover from transition to low power mode only when I added
code to re-enable the interrupts and re-negotiate the link. Is this a right
way of doing it?

Anyone has exeperience with handling power management for this or similar
ethernet devices?

Thank you.