From 426c8da71df7a8a283f06bee023abb4d8ddaa30b Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Mon, 2 Nov 2009 00:44:01 +0000
Subject: [PATCH] ixp4xx: fix weird ethernet issues with some devices caused by
 the ethernet packet size increase. despite what the docs day, 14320 is the
 largest working MRU value, not 16320 fixes #5785 for me

SVN-Revision: 18262
---
 .../linux/ixp4xx/patches-2.6.28/304-ixp4xx_eth_jumboframe.patch | 2 +-
 .../linux/ixp4xx/patches-2.6.30/304-ixp4xx_eth_jumboframe.patch | 2 +-
 .../linux/ixp4xx/patches-2.6.31/304-ixp4xx_eth_jumboframe.patch | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/target/linux/ixp4xx/patches-2.6.28/304-ixp4xx_eth_jumboframe.patch b/target/linux/ixp4xx/patches-2.6.28/304-ixp4xx_eth_jumboframe.patch
index f7b5c81b6864..8f76f7c27f46 100644
--- a/target/linux/ixp4xx/patches-2.6.28/304-ixp4xx_eth_jumboframe.patch
+++ b/target/linux/ixp4xx/patches-2.6.28/304-ixp4xx_eth_jumboframe.patch
@@ -5,7 +5,7 @@
  #define POOL_ALLOC_SIZE		(sizeof(struct desc) * (RX_DESCS + TX_DESCS))
  #define REGS_SIZE		0x1000
 -#define MAX_MRU			1536 /* 0x600 */
-+#define MAX_MRU			(16320 - ETH_HLEN - ETH_FCS_LEN)
++#define MAX_MRU			(14320 - ETH_HLEN - ETH_FCS_LEN)
  #define RX_BUFF_SIZE		ALIGN((NET_IP_ALIGN) + MAX_MRU, 4)
  
  #define NAPI_WEIGHT		16
diff --git a/target/linux/ixp4xx/patches-2.6.30/304-ixp4xx_eth_jumboframe.patch b/target/linux/ixp4xx/patches-2.6.30/304-ixp4xx_eth_jumboframe.patch
index 9ee3c904c0aa..b4cf824370af 100644
--- a/target/linux/ixp4xx/patches-2.6.30/304-ixp4xx_eth_jumboframe.patch
+++ b/target/linux/ixp4xx/patches-2.6.30/304-ixp4xx_eth_jumboframe.patch
@@ -5,7 +5,7 @@
  #define POOL_ALLOC_SIZE		(sizeof(struct desc) * (RX_DESCS + TX_DESCS))
  #define REGS_SIZE		0x1000
 -#define MAX_MRU			1536 /* 0x600 */
-+#define MAX_MRU			(16320 - ETH_HLEN - ETH_FCS_LEN)
++#define MAX_MRU			(14320 - ETH_HLEN - ETH_FCS_LEN)
  #define RX_BUFF_SIZE		ALIGN((NET_IP_ALIGN) + MAX_MRU, 4)
  
  #define NAPI_WEIGHT		16
diff --git a/target/linux/ixp4xx/patches-2.6.31/304-ixp4xx_eth_jumboframe.patch b/target/linux/ixp4xx/patches-2.6.31/304-ixp4xx_eth_jumboframe.patch
index 26f5bd953de4..a9cbddcf5a88 100644
--- a/target/linux/ixp4xx/patches-2.6.31/304-ixp4xx_eth_jumboframe.patch
+++ b/target/linux/ixp4xx/patches-2.6.31/304-ixp4xx_eth_jumboframe.patch
@@ -5,7 +5,7 @@
  #define POOL_ALLOC_SIZE		(sizeof(struct desc) * (RX_DESCS + TX_DESCS))
  #define REGS_SIZE		0x1000
 -#define MAX_MRU			1536 /* 0x600 */
-+#define MAX_MRU			(16320 - ETH_HLEN - ETH_FCS_LEN)
++#define MAX_MRU			(14320 - ETH_HLEN - ETH_FCS_LEN)
  #define RX_BUFF_SIZE		ALIGN((NET_IP_ALIGN) + MAX_MRU, 4)
  
  #define NAPI_WEIGHT		16
-- 
2.30.2