From 18d6e9d51891f91af4e7351cbab3cb180bb9f430 Mon Sep 17 00:00:00 2001
From: Albert Lee <albertcc@tw.ibm.com>
Date: Mon, 2 Apr 2007 11:34:15 +0800
Subject: libata: Limit max sector to 128 for TORiSAN DVD drives (take 3)

patch 3/4:
  The TORiSAN drive locks up when max sector == 256.
  Limit max sector to 128 for the TORiSAN DRD-N216 drives.
  (http://bugzilla.kernel.org/show_bug.cgi?id=6710)

Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---
 drivers/ata/libata-core.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'drivers/ata')

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index e07142b..84f6f85 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1784,6 +1784,9 @@ int ata_dev_configure(struct ata_device *dev)
 		dev->max_sectors = ATA_MAX_SECTORS;
 	}
 
+	if (ata_device_blacklisted(dev) & ATA_HORKAGE_MAX_SEC_128)
+		dev->max_sectors = min(ATA_MAX_SECTORS_128, dev->max_sectors);
+
 	if (ap->ops->dev_config)
 		ap->ops->dev_config(ap, dev);
 
@@ -3352,6 +3355,9 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
 	{ "_NEC DV5800A", 	NULL,		ATA_HORKAGE_NODMA },
 	{ "SAMSUNG CD-ROM SN-124","N001",	ATA_HORKAGE_NODMA },
 
+	/* Weird ATAPI devices */
+	{ "TORiSAN DVD-ROM DRD-N216", NULL,	ATA_HORKAGE_MAX_SEC_128 },
+
 	/* Devices we expect to fail diagnostics */
 
 	/* Devices where NCQ should be avoided */
-- 
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