From patchwork Thu Aug 2 15:15:38 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Dumazet X-Patchwork-Id: 174767 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 407642C007B for ; Fri, 3 Aug 2012 01:15:46 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751133Ab2HBPPo (ORCPT ); Thu, 2 Aug 2012 11:15:44 -0400 Received: from mail-bk0-f46.google.com ([209.85.214.46]:34350 "EHLO mail-bk0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750760Ab2HBPPn (ORCPT ); Thu, 2 Aug 2012 11:15:43 -0400 Received: by bkwj10 with SMTP id j10so4305409bkw.19 for ; Thu, 02 Aug 2012 08:15:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=subject:from:to:cc:in-reply-to:references:content-type:date :message-id:mime-version:x-mailer:content-transfer-encoding; bh=dQh2dEeqZn+v0SvKUuH9yumOJv1s7f6SR11Wl3ciedg=; b=mY95jpCNRjgxmD+N5KJDTfZFWT1UKszSFdumSM5d4QACubGKv71tnYXhi7vCGhy2li OjWBAqjXP9kkanqZzHn1j2gRXlm56t+ACqNKL5NixUQgLeOPkm9PDSvxRgFBRG7IBA/s XnG7b6E9SZs+mK0vKPZmcjpMK31pED4XNC/UVbefPkRq84QLSL7XRqiGaI58CHgCJK/6 Y2AgcJRgWOPIO7r9icsHhNT0nFO7/5bl8q6dZ1uNwXh8eLOm1qpAKL9yq9CjUb78eyKp 8xyDfuaQUvi5BhoqV80jKEq7o+Qi2gt9Q514ZfxSaFUZXwoFW7ZiDFoWg++tIIpOQD5i yuaQ== Received: by 10.204.136.205 with SMTP id s13mr8461702bkt.22.1343920542130; Thu, 02 Aug 2012 08:15:42 -0700 (PDT) Received: from [172.28.91.175] ([74.125.122.49]) by mx.google.com with ESMTPS id n17sm3631321bks.6.2012.08.02.08.15.39 (version=SSLv3 cipher=OTHER); Thu, 02 Aug 2012 08:15:40 -0700 (PDT) Subject: [PATCH] igb: reduce Rx header size From: Eric Dumazet To: Jeff Kirsher Cc: Alexander Duyck , netdev In-Reply-To: <1342912142-11130-8-git-send-email-jeffrey.t.kirsher@intel.com> References: <1342912142-11130-1-git-send-email-jeffrey.t.kirsher@intel.com> <1342912142-11130-8-git-send-email-jeffrey.t.kirsher@intel.com> Date: Thu, 02 Aug 2012 17:15:38 +0200 Message-ID: <1343920538.9299.200.camel@edumazet-glaptop> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Eric Dumazet Reduce skb truesize by 256 bytes. Signed-off-by: Eric Dumazet Cc: Alexander Duyck --- Tested on my machine without any problem drivers/net/ethernet/intel/igb/igb.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h index 9e572dd..0c9f62c 100644 --- a/drivers/net/ethernet/intel/igb/igb.h +++ b/drivers/net/ethernet/intel/igb/igb.h @@ -131,9 +131,9 @@ struct vf_data_storage { #define MAXIMUM_ETHERNET_VLAN_SIZE 1522 /* Supported Rx Buffer Sizes */ -#define IGB_RXBUFFER_512 512 +#define IGB_RXBUFFER_256 256 #define IGB_RXBUFFER_16384 16384 -#define IGB_RX_HDR_LEN IGB_RXBUFFER_512 +#define IGB_RX_HDR_LEN IGB_RXBUFFER_256 /* How many Tx Descriptors do we need to call netif_wake_queue ? */ #define IGB_TX_QUEUE_WAKE 16