[patch 43/87] ide_pci_generic: add quirk for Netcell ATA RAID

[Greg KH]

2.6.29-stable review patch.  If anyone has any objections, please let us know.

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

From: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>

commit c339dfdd65b52bfd947ab29d1210314a2f6d622d upstream.

We need to explicitly mark words 85-87 as valid ones since
firmware doesn't do it.

This should fix support for LBA48 and FLUSH CACHE [EXT] command
which stopped working after we applied more strict checking of
identify words in:

	commit 942dcd85bf8edf38cdc3745306ca250684d99a61
	("ide: idedisk_supports_lba48() -> ata_id_lba48_enabled()")

and

	commit 4b58f17d7c45a8e5f4acda641bec388398b9c0fa
	("ide: ide_id_has_flush_cache() -> ata_id_flush_enabled()")

Reported-and-tested-by: "Trevor Hemsley" <trevor.hemsley@xxxxxxxxxxxx>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 drivers/ide/ide-pci-generic.c |   11 +++++++++++
 1 file changed, 11 insertions(+)

--- a/drivers/ide/ide-pci-generic.c
+++ b/drivers/ide/ide-pci-generic.c
@@ -35,6 +35,16 @@ MODULE_PARM_DESC(all_generic_ide, "IDE g
 
 #define IDE_HFLAGS_UMC (IDE_HFLAG_NO_DMA | IDE_HFLAG_FORCE_LEGACY_IRQS)
 
+static void netcell_quirkproc(ide_drive_t *drive)
+{
+	/* mark words 85-87 as valid */
+	drive->id[ATA_ID_CSF_DEFAULT] |= 0x4000;
+}
+
+static const struct ide_port_ops netcell_port_ops = {
+	.quirkproc		= netcell_quirkproc,
+};
+
 #define DECLARE_GENERIC_PCI_DEV(extra_flags) \
 	{ \
 		.name		= DRV_NAME, \
@@ -76,6 +86,7 @@ static const struct ide_port_info generi
 
 	{	/* 6: Revolution */
 		.name		= DRV_NAME,
+		.port_ops	= &netcell_port_ops,
 		.host_flags	= IDE_HFLAG_CLEAR_SIMPLEX |
 				  IDE_HFLAG_TRUST_BIOS_FOR_DMA |
 				  IDE_HFLAG_OFF_BOARD,


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