David Chang [mailto:dchang@suse.com] 

Sent: Wednesday, November 27, 2013 3:49 PM
To: netdev@vger.kernel.org
Cc: David S. Miller; Francois Romieu; Hayeswang; jlee@suse.com
Subject: [PATCH net] r8169: check ALDPS bit and disable it if 
enabled for the 8168g

[...]

+	/* Check ALDPS bit, disable it if enabled */
+	rtl_writephy(tp, 0x1f, 0x0a43);
+	if (rtl_readphy(tp, 0x10) & 0x0004)
+		rtl_w1w0_phy(tp, 0x10, 0x0000, 0x0004);
+

You have to delay at least 10 ms after disable it.
This makes sure the hw completes the action.
 
Best Regards,
Hayes