linux-kernel - [PATCH 177/241] skge: Add DMA mask quirk for Marvell 88E8001 on ASUS P5NSLI motherboard

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Message-Id: <1355407206-17100-178-git-send-email-herton.krzesinski@canonical.com>
Date:	Thu, 13 Dec 2012 11:59:02 -0200
From:	Herton Ronaldo Krzesinski <herton.krzesinski@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Graham Gower <graham.gower@...il.com>,
	Jan Ceuleers <jan.ceuleers@...puter.org>,
	"David S. Miller" <davem@...emloft.net>,
	Herton Ronaldo Krzesinski <herton.krzesinski@...onical.com>
Subject: [PATCH 177/241] skge: Add DMA mask quirk for Marvell 88E8001 on ASUS P5NSLI motherboard

3.5.7.2 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Graham Gower <graham.gower@...il.com>

commit a2af139ff1cd85df586690ff626619ab1ee88b0a upstream.

Marvell 88E8001 on an ASUS P5NSLI motherboard is unable to send/receive
packets on a system with >4gb ram unless a 32bit DMA mask is used.

This issue has been around for years and a fix was sent 3.5 years ago, but
there was some debate as to whether it should instead be fixed as a PCI quirk.
http://www.spinics.net/lists/netdev/msg88670.html

However, 18 months later a similar workaround was introduced for another
chipset exhibiting the same problem.
http://www.spinics.net/lists/netdev/msg142287.html

Signed-off-by: Graham Gower <graham.gower@...il.com>
Signed-off-by: Jan Ceuleers <jan.ceuleers@...puter.org>
Acked-by: Stephen Hemminger <shemminger@...tta.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@...onical.com>
---
 drivers/net/ethernet/marvell/skge.c |    7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/ethernet/marvell/skge.c b/drivers/net/ethernet/marvell/skge.c
index 5a30bf8..f4be8f7 100644
--- a/drivers/net/ethernet/marvell/skge.c
+++ b/drivers/net/ethernet/marvell/skge.c
@@ -4153,6 +4153,13 @@ static struct dmi_system_id skge_32bit_dma_boards[] = {
 			DMI_MATCH(DMI_BOARD_NAME, "nForce"),
 		},
 	},
+	{
+		.ident = "ASUS P5NSLI",
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
+			DMI_MATCH(DMI_BOARD_NAME, "P5NSLI")
+		},
+	},
 	{}
 };
 
-- 
1.7.9.5

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