diff options
| author | Alan Cox <alan@lxorguk.ukuu.org.uk> | 2007-10-15 19:18:27 +0100 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-10-25 02:10:52 -0400 |
| commit | 3acaf94bb0a69cca75a524a4ba8c30a9eae97dc8 (patch) | |
| tree | bc4a04afbd65cb3fea58ac8fe97abc95b8cf1b6a | |
| parent | edc93052844c2032b2ec5910ace516da9078714d (diff) | |
libata-core: Be a bit more relaxed about early DMA zero devices
I guess Windows didn't care about the command so neither did they
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
| -rw-r--r-- | drivers/ata/libata-core.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 0ec717b748d..9d10e2feb8b 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -2882,6 +2882,13 @@ static int ata_dev_set_mode(struct ata_device *dev) dev->pio_mode <= XFER_PIO_2) err_mask &= ~AC_ERR_DEV; + /* Early MWDMA devices do DMA but don't allow DMA mode setting. + Don't fail an MWDMA0 set IFF the device indicates it is in MWDMA0 */ + if (dev->xfer_shift == ATA_SHIFT_MWDMA && + dev->dma_mode == XFER_MW_DMA_0 && + (dev->id[63] >> 8) & 1) + err_mask &= ~AC_ERR_DEV; + if (err_mask) { ata_dev_printk(dev, KERN_ERR, "failed to set xfermode " "(err_mask=0x%x)\n", err_mask); @@ -3943,9 +3950,6 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = { { "_NEC DV5800A", NULL, ATA_HORKAGE_NODMA }, { "SAMSUNG CD-ROM SN-124", "N001", ATA_HORKAGE_NODMA }, { "Seagate STT20000A", NULL, ATA_HORKAGE_NODMA }, - { "IOMEGA ZIP 250 ATAPI", NULL, ATA_HORKAGE_NODMA }, /* temporary fix */ - { "IOMEGA ZIP 250 ATAPI Floppy", - NULL, ATA_HORKAGE_NODMA }, /* Odd clown on sil3726/4726 PMPs */ { "Config Disk", NULL, ATA_HORKAGE_NODMA | ATA_HORKAGE_SKIP_PM }, |