Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752416AbYKRJhc (ORCPT ); Tue, 18 Nov 2008 04:37:32 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751501AbYKRJhX (ORCPT ); Tue, 18 Nov 2008 04:37:23 -0500 Received: from qw-out-2122.google.com ([74.125.92.25]:60327 "EHLO qw-out-2122.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751356AbYKRJhW (ORCPT ); Tue, 18 Nov 2008 04:37:22 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=x5JwxFV8I5zvloKpWuVlI4zJirVbeZfNFO5rYaXxhC/0BES5uIFoU7zMkhuL+5+CDm vtn6hFbNYG8EqAngIngteuK4KDtSdZJE3l4fDwnnm47L4NlEp714/8eGmHAXnc2Bb0RF 3bXN63Ej7zS8yTJAebBlhyeTH01nCQr2xrMRM= Message-ID: Date: Tue, 18 Nov 2008 10:37:21 +0100 From: "Leon Woestenberg" To: "James Bottomley" Subject: Re: pci_map_sg() does not coalesce adjacent physical memory? x86 Cc: "Andrew Morton" , LKML , "FUJITA Tomonori" , "Tejun Heo" In-Reply-To: <1226985689.3403.20.camel@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20081117191532.c1c849f5.akpm@linux-foundation.org> <1226985689.3403.20.camel@localhost.localdomain> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1020 Lines: 28 Hello all, On Tue, Nov 18, 2008 at 6:21 AM, James Bottomley wrote: > On Mon, 2008-11-17 at 19:15 -0800, Andrew Morton wrote: >> (cc's added) >> >> On Mon, 17 Nov 2008 22:54:33 +0100 "Leon Woestenberg" wrote: >> > pci_map_sg() does not coalesce the scattergather list for me on x86. >> In which kernel version(s)? > 2.6.24 for x86, and 2.6.27 for powerpc. Sorry, this is a bogus report: I tried to isolate the scattergather implementation, thereby the dev pointer got NULL, which results in different dma_ops. I am bringing a freshly written driver upstream 'altpciechdma' for the Altera FPGA PCI Express Chaining DMA reference design. Will probably appear in staging RSN. Thanks for the help, -- Leon -- 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/