From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: [PATCH 6/7] skge: rearrange fields Date: Fri, 16 Mar 2007 14:01:31 -0700 Message-ID: <20070316210156.183648598@linux-foundation.org> References: <20070316210125.324052637@linux-foundation.org> Cc: netdev@vger.kernel.org To: Jeff Garzik Return-path: Received: from smtp.osdl.org ([65.172.181.24]:36160 "EHLO smtp.osdl.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965933AbXCPVGc (ORCPT ); Fri, 16 Mar 2007 17:06:32 -0400 Content-Disposition: inline; filename=skge-mem-opt.patch Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Do some minor rearrangement of data structures to try and optimize cache usage. Signed-off-by: Stephen Hemminger --- drivers/net/skge.h | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) --- skge-dev.orig/drivers/net/skge.h +++ skge-dev/drivers/net/skge.h @@ -2446,15 +2446,15 @@ enum pause_status { struct skge_port { - u32 msg_enable; struct skge_hw *hw; struct net_device *netdev; int port; + u32 msg_enable; struct skge_ring tx_ring; - struct skge_ring rx_ring; - struct net_device_stats net_stats; + struct skge_ring rx_ring ____cacheline_aligned_in_smp; + unsigned int rx_buf_size; struct timer_list link_timer; enum pause_control flow_control; @@ -2470,7 +2470,8 @@ struct skge_port { void *mem; /* PCI memory for rings */ dma_addr_t dma; unsigned long mem_size; - unsigned int rx_buf_size; + + struct net_device_stats net_stats; }; --