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Message-Id: <200708192300.35564.sshtylyov@ru.mvista.com>
Date: Sun, 19 Aug 2007 23:00:35 +0400
From: Sergei Shtylyov <sshtylyov@...mvista.com>
To: bzolnier@...il.com, rah@...h.sh
Cc: linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/4] hpt366: UltraDMA filter for SATA cards (take 2)
The Marvell bridge chips used on HighPoint SATA cards do not seem to support
the UltraDMA modes 1, 2, and 3 as well as any MWDMA modes, so the driver needs
to account for this in the udma_filter() method. In order to achieve that, do
the following changes:
- install the method for all chips, not only HPT36x/370 and impove the code
formatting by killing the extra tabs while at it;
- add to the end of the 'switch' statement in the method cases for HPT372[AN]
and HPT374 chips upon which the known SATA cards are based;
- use hwif->ultra_mask as a default mask for the ide_dma_filter() method to
behave correctly;
- move the HPT370[A] cases below the HPT36x case for consistency.
While at it, replace the explicit UltraDMA mode masks with ATA_UDMA* constants
all over the driver...
Signed-off-by: Sergei Shtylyov <sshtylyov@...mvista.com>
---
This is against the current Linus tree and unfortunately I was able to only
compile test it since that tree gives MODPOST warning and dies early on bootup.
Will hopefully finish with the patch series next weekend...
drivers/ide/pci/hpt366.c | 96 +++++++++++++++++++++++------------------------
1 files changed, 49 insertions(+), 47 deletions(-)
Index: linux-2.6/drivers/ide/pci/hpt366.c
===================================================================
--- linux-2.6.orig/drivers/ide/pci/hpt366.c
+++ linux-2.6/drivers/ide/pci/hpt366.c
@@ -1,5 +1,5 @@
/*
- * linux/drivers/ide/pci/hpt366.c Version 1.11 Aug 11, 2007
+ * linux/drivers/ide/pci/hpt366.c Version 1.12 Aug 19, 2007
*
* Copyright (C) 1999-2003 Andre Hedrick <andre@...ux-ide.org>
* Portions Copyright (C) 2001 Sun Microsystems, Inc.
@@ -114,6 +114,7 @@
* unify HPT36x/37x timing setup code and the speedproc handlers by joining
* the register setting lists into the table indexed by the clock selected
* - set the correct hwif->ultra_mask for each individual chip
+ * - add UltraDMA mode filtering for the HPT37[24] based SATA cards
* Sergei Shtylyov, <sshtylyov@...mvista.com> or <source@...sta.com>
*/
@@ -518,42 +519,44 @@ static int check_in_drive_list(ide_drive
}
/*
- * Note for the future; the SATA hpt37x we must set
- * either PIO or UDMA modes 0,4,5
+ * The Marvell bridge chips used on the HighPoint SATA cards do not seem
+ * to support the UltraDMA modes 1, 2, and 3 as well as any MWDMA modes...
*/
static u8 hpt3xx_udma_filter(ide_drive_t *drive)
{
- struct hpt_info *info = pci_get_drvdata(HWIF(drive)->pci_dev);
- u8 mask;
+ ide_hwif_t *hwif = HWIF(drive);
+ struct hpt_info *info = pci_get_drvdata(hwif->pci_dev);
+ u8 mask = hwif->ultra_mask;
switch (info->chip_type) {
- case HPT370A:
- if (!HPT370_ALLOW_ATA100_5 ||
- check_in_drive_list(drive, bad_ata100_5))
- return 0x1f;
- else
- return 0x3f;
- case HPT370:
- if (!HPT370_ALLOW_ATA100_5 ||
- check_in_drive_list(drive, bad_ata100_5))
- mask = 0x1f;
- else
- mask = 0x3f;
- break;
case HPT36x:
if (!HPT366_ALLOW_ATA66_4 ||
check_in_drive_list(drive, bad_ata66_4))
- mask = 0x0f;
- else
- mask = 0x1f;
+ mask = ATA_UDMA3;
if (!HPT366_ALLOW_ATA66_3 ||
check_in_drive_list(drive, bad_ata66_3))
- mask = 0x07;
+ mask = ATA_UDMA2;
break;
+ case HPT370:
+ if (!HPT370_ALLOW_ATA100_5 ||
+ check_in_drive_list(drive, bad_ata100_5))
+ mask = ATA_UDMA4;
+ break;
+ case HPT370A:
+ if (!HPT370_ALLOW_ATA100_5 ||
+ check_in_drive_list(drive, bad_ata100_5))
+ return ATA_UDMA4;
+ case HPT372 :
+ case HPT372A:
+ case HPT372N:
+ case HPT374 :
+ if (ide_dev_is_sata(drive->id))
+ mask &= ~0x0e;
+ /* Fall thru */
default:
- return 0x7f;
+ return mask;
}
return check_in_drive_list(drive, bad_ata33) ? 0x00 : mask;
@@ -1236,25 +1239,24 @@ static unsigned int __devinit init_chips
static void __devinit init_hwif_hpt366(ide_hwif_t *hwif)
{
- struct pci_dev *dev = hwif->pci_dev;
- struct hpt_info *info = pci_get_drvdata(dev);
- int serialize = HPT_SERIALIZE_IO;
- u8 scr1 = 0, ata66 = hwif->channel ? 0x01 : 0x02;
- u8 chip_type = info->chip_type;
- u8 new_mcr, old_mcr = 0;
+ struct pci_dev *dev = hwif->pci_dev;
+ struct hpt_info *info = pci_get_drvdata(dev);
+ int serialize = HPT_SERIALIZE_IO;
+ u8 scr1 = 0, ata66 = hwif->channel ? 0x01 : 0x02;
+ u8 chip_type = info->chip_type;
+ u8 new_mcr, old_mcr = 0;
/* Cache the channel's MISC. control registers' offset */
- hwif->select_data = hwif->channel ? 0x54 : 0x50;
+ hwif->select_data = hwif->channel ? 0x54 : 0x50;
- hwif->tuneproc = &hpt3xx_tune_drive;
- hwif->speedproc = &hpt3xx_tune_chipset;
- hwif->quirkproc = &hpt3xx_quirkproc;
- hwif->intrproc = &hpt3xx_intrproc;
- hwif->maskproc = &hpt3xx_maskproc;
- hwif->busproc = &hpt3xx_busproc;
+ hwif->tuneproc = &hpt3xx_tune_drive;
+ hwif->speedproc = &hpt3xx_tune_chipset;
+ hwif->quirkproc = &hpt3xx_quirkproc;
+ hwif->intrproc = &hpt3xx_intrproc;
+ hwif->maskproc = &hpt3xx_maskproc;
+ hwif->busproc = &hpt3xx_busproc;
- if (chip_type <= HPT370A)
- hwif->udma_filter = &hpt3xx_udma_filter;
+ hwif->udma_filter = &hpt3xx_udma_filter;
/*
* HPT3xxN chips have some complications:
@@ -1504,19 +1506,19 @@ static int __devinit init_setup_hpt366(s
d->host_flags |= IDE_HFLAG_SINGLE;
d->enablebits[0].mask = d->enablebits[0].val = 0x10;
- d->udma_mask = HPT366_ALLOW_ATA66_3 ?
- (HPT366_ALLOW_ATA66_4 ? 0x1f : 0x0f) : 0x07;
+ d->udma_mask = HPT366_ALLOW_ATA66_3 ? (HPT366_ALLOW_ATA66_4 ?
+ ATA_UDMA4 : ATA_UDMA3) : ATA_UDMA2;
break;
case 3:
case 4:
- d->udma_mask = HPT370_ALLOW_ATA100_5 ? 0x3f : 0x1f;
+ d->udma_mask = HPT370_ALLOW_ATA100_5 ? ATA_UDMA5 : ATA_UDMA4;
break;
default:
rev = 6;
/* fall thru */
case 5:
case 6:
- d->udma_mask = HPT372_ALLOW_ATA133_6 ? 0x7f : 0x3f;
+ d->udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5;
break;
}
@@ -1577,7 +1579,7 @@ static ide_pci_device_t hpt366_chipsets[
.init_dma = init_dma_hpt366,
.autodma = AUTODMA,
.enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
- .udma_mask = HPT372_ALLOW_ATA133_6 ? 0x7f : 0x3f,
+ .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
.bootable = OFF_BOARD,
.extra = 240,
.pio_mask = ATA_PIO4,
@@ -1589,7 +1591,7 @@ static ide_pci_device_t hpt366_chipsets[
.init_dma = init_dma_hpt366,
.autodma = AUTODMA,
.enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
- .udma_mask = HPT302_ALLOW_ATA133_6 ? 0x7f : 0x3f,
+ .udma_mask = HPT302_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
.bootable = OFF_BOARD,
.extra = 240,
.pio_mask = ATA_PIO4,
@@ -1601,7 +1603,7 @@ static ide_pci_device_t hpt366_chipsets[
.init_dma = init_dma_hpt366,
.autodma = AUTODMA,
.enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
- .udma_mask = HPT371_ALLOW_ATA133_6 ? 0x7f : 0x3f,
+ .udma_mask = HPT371_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
.bootable = OFF_BOARD,
.extra = 240,
.pio_mask = ATA_PIO4,
@@ -1613,7 +1615,7 @@ static ide_pci_device_t hpt366_chipsets[
.init_dma = init_dma_hpt366,
.autodma = AUTODMA,
.enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
- .udma_mask = 0x3f,
+ .udma_mask = ATA_UDMA5,
.bootable = OFF_BOARD,
.extra = 240,
.pio_mask = ATA_PIO4,
@@ -1625,7 +1627,7 @@ static ide_pci_device_t hpt366_chipsets[
.init_dma = init_dma_hpt366,
.autodma = AUTODMA,
.enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
- .udma_mask = HPT372_ALLOW_ATA133_6 ? 0x7f : 0x3f,
+ .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
.bootable = OFF_BOARD,
.extra = 240,
.pio_mask = ATA_PIO4,
-
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