From c339dfdd65b52bfd947ab29d1210314a2f6d622d Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Sat, 30 May 2009 20:06:54 +0200
Subject: [PATCH] ide_pci_generic: add quirk for Netcell ATA RAID
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@ntlworld.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
drivers/ide/ide-pci-generic.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/ide/ide-pci-generic.c b/drivers/ide/ide-pci-generic.c
index 61111fd271301..39d4e01f5c9ce 100644
--- a/drivers/ide/ide-pci-generic.c
+++ b/drivers/ide/ide-pci-generic.c
@@ -33,6 +33,16 @@ static int ide_generic_all; /* Set to claim all devices */
module_param_named(all_generic_ide, ide_generic_all, bool, 0444);
MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE storage controllers.");
+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, \
@@ -74,6 +84,7 @@ static const struct ide_port_info generic_chipsets[] __devinitdata = {
{ /* 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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