linux-kernel - Re: [PATCH 5/4] Fix forcedeth hibernate/wake-on-lan problems

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Date:	Sun, 1 Jun 2008 00:54:42 +0200
From:	Tobias Diedrich <ranma+kernel@...edrich.de>
To:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	Ayaz Abdulla <aabdulla@...dia.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Stephen Hemminger <shemminger@...ux-foundation.org>
Subject: Re: [PATCH 5/4] Fix forcedeth hibernate/wake-on-lan problems

From: Tobias Diedrich <ranma+kernel@...edrich.de>

We currently don't signal the kernel we that this device can wake
the system.  Call device_init_wakeup() to correct this.
Without this device_can_wakeup and device_may_wakeup will return
incorrect values.
Together with the minimized acpi wakeup patch (6/4 ;)), which will
follow in the next mail, this really makes wake-on-lan work for me
as expected (i.e. "ethtool -s eth0 wol g" is sufficient, no
additional magic needed).

Signed-off-by: Tobias Diedrich <ranma+kernel@...edrich.de>

Index: linux-2.6.26-rc4.forcedwol/drivers/net/forcedeth.c
===================================================================
--- linux-2.6.26-rc4.forcedwol.orig/drivers/net/forcedeth.c	2008-06-01 00:29:58.000000000 +0200
+++ linux-2.6.26-rc4.forcedwol/drivers/net/forcedeth.c	2008-06-01 00:30:48.000000000 +0200
@@ -5539,6 +5539,11 @@
 	/* set mac address */
 	nv_copy_mac_to_hw(dev);
 
+	/* Workaround current PCI init glitch:  wakeup bits aren't
+	 * being set from PCI PM capability.
+	 */
+	device_init_wakeup(&pci_dev->dev, 1);
+
 	/* disable WOL */
 	writel(0, base + NvRegWakeUpFlags);
 	np->wolenabled = 0;
--
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