From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754096Ab3KQNjP (ORCPT ); Sun, 17 Nov 2013 08:39:15 -0500 Received: from dotsec.net ([62.75.224.215]:52077 "EHLO styx.dotsec.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753975Ab3KQNjK (ORCPT ); Sun, 17 Nov 2013 08:39:10 -0500 From: Alban Bedel To: linux-kernel@vger.kernel.org Cc: netdev@vger.kernel.org, jgarzik@pobox.com, davem@davemloft.net Subject: [PATCH 2/2] 8139too: Allow using the largest possible MTU Date: Sun, 17 Nov 2013 14:05:24 +0100 Message-Id: <1384693524-20599-2-git-send-email-albeu@free.fr> X-Mailer: git-send-email 1.8.4.2 In-Reply-To: <1384693524-20599-1-git-send-email-albeu@free.fr> References: <1384693524-20599-1-git-send-email-albeu@free.fr> X-SA-Score: -1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This driver allows MTU up to 1518 bytes which is not enought to run batman-adv. Simply raise the maximum packet size up to the maximum allowed by the transmit descriptor, 1792 bytes, giving a maximum MTU of 1774 bytes. Signed-off-by: Alban Bedel --- drivers/net/ethernet/realtek/8139too.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/realtek/8139too.c b/drivers/net/ethernet/realtek/8139too.c index 9d5d6d1..7be187a 100644 --- a/drivers/net/ethernet/realtek/8139too.c +++ b/drivers/net/ethernet/realtek/8139too.c @@ -183,7 +183,7 @@ static int debug = -1; #define NUM_TX_DESC 4 /* max supported ethernet frame size -- must be at least (dev->mtu+14+4).*/ -#define MAX_ETH_FRAME_SIZE 1536 +#define MAX_ETH_FRAME_SIZE 1792 /* max supported payload size */ #define MAX_ETH_DATA_SIZE (MAX_ETH_FRAME_SIZE - ETH_HLEN - ETH_FCS_LEN) -- 1.8.4.2