Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758777AbYGQMQg (ORCPT ); Thu, 17 Jul 2008 08:16:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756706AbYGQMQJ (ORCPT ); Thu, 17 Jul 2008 08:16:09 -0400 Received: from khc.piap.pl ([195.187.100.11]:38061 "EHLO khc.piap.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756794AbYGQMQG (ORCPT ); Thu, 17 Jul 2008 08:16:06 -0400 To: Matthew Wilcox Cc: Jesse Barnes , David Vrabel , Kernel development list , Ingo Molnar , Thomas Gleixner Subject: Re: PCI: MSI interrupts masked using prohibited method References: <4860D09D.4060801@csr.com> <4864DA54.6000205@csr.com> <200806271007.26248.jbarnes@virtuousgeek.org> <200807161243.03360.jbarnes@virtuousgeek.org> <20080716195853.GL25255@parisc-linux.org> From: Krzysztof Halasa Date: Thu, 17 Jul 2008 14:16:03 +0200 In-Reply-To: <20080716195853.GL25255@parisc-linux.org> (Matthew Wilcox's message of "Wed\, 16 Jul 2008 13\:58\:53 -0600") Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 691 Lines: 18 Matthew Wilcox writes: > For these devices, we call > msi_set_enable(entry->dev, !flag); > > which turns off the PCI_MSI_FLAGS_ENABLE bit. I'm not sure I see the > bit in the PCI spec that says devices are then allowed to ignore the > Interrupt Disable bit in the device control register, but I concede such > devices may be out there. Remember that MSI predates INTX disable bit. -- Krzysztof Halasa -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/