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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-02-01 23:09:30 +0100 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-02-01 23:09:30 +0100 |
| commit | 4166c1993b9e7f87c4d08e2e27f83ada890c2599 (patch) | |
| tree | b5abb7e9ee55edf183804c17df5473681a264481 | |
| parent | 8ac2b42a45896641ed292deaf038a1d2703d85a6 (diff) | |
| download | blackbird-op-linux-4166c1993b9e7f87c4d08e2e27f83ada890c2599.tar.gz blackbird-op-linux-4166c1993b9e7f87c4d08e2e27f83ada890c2599.zip | |
ide: add IDE_HFLAG_NO_DSC host flag
* Add IDE_HFLAG_NO_DSC host flag for hosts that doesn't support DSC overlap.
* Set it in aec62xx (for ATP850UF only) and hpt34x host drivers.
* Convert ide-tape device driver to check for IDE_HFLAG_NO_DSC flag.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| -rw-r--r-- | drivers/ide/ide-tape.c | 16 | ||||
| -rw-r--r-- | drivers/ide/pci/aec62xx.c | 1 | ||||
| -rw-r--r-- | drivers/ide/pci/hpt34x.c | 1 | ||||
| -rw-r--r-- | include/linux/ide.h | 2 |
4 files changed, 8 insertions, 12 deletions
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index 65037a8295a1..73e41cff3738 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -4532,19 +4532,11 @@ static void idetape_setup (ide_drive_t *drive, idetape_tape_t *tape, int minor) spin_lock_init(&tape->spinlock); drive->dsc_overlap = 1; -#ifdef CONFIG_BLK_DEV_IDEPCI - if (HWIF(drive)->pci_dev != NULL) { - /* - * These two ide-pci host adapters appear to need DSC overlap disabled. - * This probably needs further analysis. - */ - if ((HWIF(drive)->pci_dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF) || - (HWIF(drive)->pci_dev->device == PCI_DEVICE_ID_TTI_HPT343)) { - printk(KERN_INFO "ide-tape: %s: disabling DSC overlap\n", tape->name); - drive->dsc_overlap = 0; - } + if (drive->hwif->host_flags & IDE_HFLAG_NO_DSC) { + printk(KERN_INFO "ide-tape: %s: disabling DSC overlap\n", + tape->name); + drive->dsc_overlap = 0; } -#endif /* CONFIG_BLK_DEV_IDEPCI */ /* Seagate Travan drives do not support DSC overlap. */ if (strstr(drive->id->model, "Seagate STT3401")) drive->dsc_overlap = 0; diff --git a/drivers/ide/pci/aec62xx.c b/drivers/ide/pci/aec62xx.c index 7f4d1857d555..15597597740f 100644 --- a/drivers/ide/pci/aec62xx.c +++ b/drivers/ide/pci/aec62xx.c @@ -202,6 +202,7 @@ static const struct ide_port_info aec62xx_chipsets[] __devinitdata = { .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}}, .host_flags = IDE_HFLAG_SERIALIZE | IDE_HFLAG_NO_ATAPI_DMA | + IDE_HFLAG_NO_DSC | IDE_HFLAG_ABUSE_SET_DMA_MODE | IDE_HFLAG_OFF_BOARD, .pio_mask = ATA_PIO4, diff --git a/drivers/ide/pci/hpt34x.c b/drivers/ide/pci/hpt34x.c index dfba0d13fcd3..48a9ff2e8c33 100644 --- a/drivers/ide/pci/hpt34x.c +++ b/drivers/ide/pci/hpt34x.c @@ -131,6 +131,7 @@ static void __devinit init_hwif_hpt34x(ide_hwif_t *hwif) #define IDE_HFLAGS_HPT34X \ (IDE_HFLAG_NO_ATAPI_DMA | \ + IDE_HFLAG_NO_DSC | \ IDE_HFLAG_ABUSE_SET_DMA_MODE | \ IDE_HFLAG_NO_AUTODMA) diff --git a/include/linux/ide.h b/include/linux/ide.h index 1b31597e7435..af352cc41db5 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -1095,6 +1095,8 @@ enum { IDE_HFLAG_CY82C693 = (1 << 27), /* force host out of "simplex" mode */ IDE_HFLAG_CLEAR_SIMPLEX = (1 << 28), + /* DSC overlap is unsupported */ + IDE_HFLAG_NO_DSC = (1 << 29), }; #ifdef CONFIG_BLK_DEV_OFFBOARD |
