netdev - [PATCH] sky2: Disable MSI on ASUS P6T

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Message-Id: <20190723151525.6526-1-tiwai@suse.de>
Date:   Tue, 23 Jul 2019 17:15:25 +0200
From:   Takashi Iwai <tiwai@...e.de>
To:     netdev@...r.kernel.org
Cc:     Mirko Lindner <mlindner@...vell.com>,
        Stephen Hemminger <stephen@...workplumber.org>,
        Marcus Seyfarth <m.seyfarth@...il.com>,
        "David S . Miller" <davem@...emloft.net>
Subject: [PATCH] sky2: Disable MSI on ASUS P6T

The onboard sky2 NIC on ASUS P6T WS PRO doesn't work after PM resume
due to the infamous IRQ problem.  Disabling MSI works around it, so
let's add it to the blacklist.

Unfortunately the BIOS on the machine doesn't fill the standard
DMI_SYS_* entry, so we pick up DMI_BOARD_* entries instead.

BugLink: https://bugzilla.suse.com/show_bug.cgi?id=1142496
Reported-and-tested-by: Marcus Seyfarth <m.seyfarth@...il.com>
Signed-off-by: Takashi Iwai <tiwai@...e.de>
---
 drivers/net/ethernet/marvell/sky2.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c
index f518312ffe69..a01c75ede871 100644
--- a/drivers/net/ethernet/marvell/sky2.c
+++ b/drivers/net/ethernet/marvell/sky2.c
@@ -4924,6 +4924,13 @@ static const struct dmi_system_id msi_blacklist[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
 		},
 	},
+	{
+		.ident = "ASUS P6T",
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
+			DMI_MATCH(DMI_BOARD_NAME, "P6T"),
+		},
+	},
 	{}
 };
 
-- 
2.16.4