From: Prarit Bhargava <prarit@redhat.com>
Subject: [RHEL5.1 PATCH]: Add Hitachi HDS7250SASUN500G 0621KTAWSD to NCQ blacklist
Date: Tue, 10 Jul 2007 18:21:08 -0400
Bugzilla: 247627
Message-Id: <20070710222108.27699.68227.sendpatchset@prarit.boston.redhat.com>
Changelog: [sata] Add Hitachi HDS7250SASUN500G 0621KTAWSD to NCQ blacklist


Backport of

http://marc.info/?l=linux-ide&m=118410568612699&w=2

Blacklist the Hitachi HDS7250SASUN500G 0621KTAWSD drive for NCQ operation.

Tested successfully by me on a Sun Ultra 40 with this drive.

Resolves BZ 247627.

--- linux-2.6.18.x86_64/drivers/ata/libata-core.c.orig	2007-07-07 00:14:58.000000000 -0400
+++ linux-2.6.18.x86_64/drivers/ata/libata-core.c	2007-07-07 00:16:08.000000000 -0400
@@ -3787,6 +3787,8 @@ static const struct ata_blacklist_entry 
 	/* NCQ is broken */
 	{ "Maxtor 6L250S0",     "BANC1G10",     ATA_HORKAGE_NONCQ },
 	{ "Maxtor 6B200M0",	"BANC1B10",	ATA_HORKAGE_NONCQ },
+	{ "HITACHI HDS7250SASUN500G 0621KTAWSD", "K2AOAJ0AHITACHI",
+	 ATA_HORKAGE_NONCQ },
 	/* NCQ hard hangs device under heavier load, needs hard power cycle */
 	{ "Maxtor 6B250S0",	"BANC1B70",	ATA_HORKAGE_NONCQ },
 	/* Blacklist entries taken from Silicon Image 3124/3132