From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ondrej Zajicek Subject: [PATCH] via-rhine: suspend/resume bugfix Date: Sun, 27 Apr 2008 09:13:51 +0200 Message-ID: <20080427071351.GA20561@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org, rl@hellgate.ch To: akpm@linux-foundation.org Return-path: Received: from gateway.crfreenet.org ([81.92.146.254]:35788 "EHLO mail.crfreenet.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752048AbYD0HmH (ORCPT ); Sun, 27 Apr 2008 03:42:07 -0400 Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-ID: There is a bug in via-rhine driver - the driver don't disable interrupts during suspend, which sometimes leads to globally disabled interrupt line. This patch disables interrupts (and Rx/Tx) during suspend. Signed-off-by: Ondrej Zajicek --- diff -uprN -X linux-2.6.25/Documentation/dontdiff linux-2.6.25/drivers/net/via-rhine.c linux-2.6.25-feanor/drivers/net/via-rhine.c --- linux-2.6.25/drivers/net/via-rhine.c 2008-04-17 04:49:44.000000000 +0200 +++ linux-2.6.25-feanor/drivers/net/via-rhine.c 2008-04-26 14:08:44.000000000 +0200 @@ -1886,6 +1886,15 @@ static void rhine_shutdown (struct pci_d struct rhine_private *rp = netdev_priv(dev); void __iomem *ioaddr = rp->base; + /* Switch to loopback mode to avoid hardware races. */ + iowrite8(rp->tx_thresh | 0x02, ioaddr + TxConfig); + + /* Disable interrupts by clearing the interrupt mask. */ + iowrite16(0x0000, ioaddr + IntrEnable); + + /* Stop the chip's Tx and Rx processes. */ + iowrite16(CmdStop, ioaddr + ChipCmd); + if (!(rp->quirks & rqWOL)) return; /* Nothing to do for non-WOL adapters */