netdev - [PATCH 2/2] ARM: mvebu: disable IP checksum with jumbo frames for Armada 370

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Date:	Mon, 15 Jun 2015 16:27:23 +0200
From:	Simon Guinot <simon.guinot@...uanux.org>
To:	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Jason Cooper <jason@...edaemon.net>,
	Andrew Lunn <andrew@...n.ch>,
	Gregory Clement <gregory.clement@...e-electrons.com>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Cc:	netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	<stable@...r.kernel.org>
Subject: [PATCH 2/2] ARM: mvebu: disable IP checksum with jumbo frames for Armada 370

The Ethernet controller found in Armada 370 SoCs don't support TCP/IP
checksumming with frames largest than 1600 Bytes.

This patch sets accordingly the tx_csum_limit property in Ethernet nodes
for Armada 370.

Signed-off-by: Simon Guinot <simon.guinot@...uanux.org>
Cc: <stable@...r.kernel.org> # v3.8+
---
 arch/arm/boot/dts/armada-370.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/armada-370.dtsi b/arch/arm/boot/dts/armada-370.dtsi
index 00b50db57c9c..046489df351d 100644
--- a/arch/arm/boot/dts/armada-370.dtsi
+++ b/arch/arm/boot/dts/armada-370.dtsi
@@ -307,6 +307,14 @@
 					dmacap,memset;
 				};
 			};
+
+			ethernet@...00 {
+				tx_csum_limit = <1600>;
+			};
+
+			ethernet@...00 {
+				tx_csum_limit = <1600>;
+			};
 		};
 	};
 };
-- 
2.1.4

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