From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: [RFC 0/2] Convert skb to use scatterlist Date: Thu, 05 Jul 2007 16:14:12 -0700 Message-ID: <20070705231412.021359760@linux-foundation.org> Cc: netdev@vger.kernel.org To: David Miller Return-path: Received: from smtp2.linux-foundation.org ([207.189.120.14]:41619 "EHLO smtp2.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758387AbXGEXRk (ORCPT ); Thu, 5 Jul 2007 19:17:40 -0400 Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org This topic came up at first Netconf. This patch changes skbuff to use scatterlist. Why? Devices can than use the pci_dma_sg routines to map the fraglist in one operation. This allows for better error handling (less unwinding), and some IOMMU's (PPC?) can be smarter. -- Stephen Hemminger