Commit 2cc49a5c authored Jun 14, 2007 by Tim Mann Committed by Jeff Garzik Jun 20, 2007

forcedeth: use unicast receive mode for WoL



I happened to notice that a system with an NVidia NIC using the
forcedeth driver won't wake-on-LAN if the interface was in promiscuous
mode when you power off.  By experiment, it looks like
the hardware needs to have NvRegPacketFilterFlags set to
NVREG_PFF_ALWAYS|NVREG_PFF_MYADDR (i.e., receive unicast packets to my
address) in order for WoL to work.

Jeff Garzik writes: "NVIDIA says the patch looks OK."  I didn't venture
to insert a signed-off-by line with his name on it, though.

Signed-off-by: Tim Mann <mann@vmware.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

parent d4614627

drivers/net/forcedeth.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -4825,8 +4825,10 @@ static int nv_close(struct net_device *dev)

		drain_ring(dev);

		if (np->wolenabled)
		if (np->wolenabled) {
		writel(NVREG_PFF_ALWAYS\|NVREG_PFF_MYADDR, base + NvRegPacketFilterFlags);
		nv_start_rx(dev);
		}

		/* FIXME: power down nic */

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