diff options
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/ata_piix.c | 3 | ||||
| -rw-r--r-- | drivers/scsi/libata-core.c | 25 |
2 files changed, 23 insertions, 5 deletions
diff --git a/drivers/scsi/ata_piix.c b/drivers/scsi/ata_piix.c index 557788ec4eec..fc3ca051ceed 100644 --- a/drivers/scsi/ata_piix.c +++ b/drivers/scsi/ata_piix.c @@ -157,6 +157,9 @@ static const struct pci_device_id piix_pci_tbl[] = { { 0x8086, 0x27c0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata_ahci }, { 0x8086, 0x27c4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata_ahci }, { 0x8086, 0x2680, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata_ahci }, + { 0x8086, 0x2820, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata_ahci }, + { 0x8086, 0x2825, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata_ahci }, + { 0x8086, 0x2828, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata_ahci }, { } /* terminate list */ }; diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index 911151db8c25..498f20668fe0 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -612,6 +612,10 @@ int ata_rwcmd_protocol(struct ata_queued_cmd *qc) if (dev->flags & ATA_DFLAG_PIO) { tf->protocol = ATA_PROT_PIO; index = dev->multi_count ? 0 : 8; + } else if (lba48 && (qc->ap->flags & ATA_FLAG_PIO_LBA48)) { + /* Unable to use DMA due to host limitation */ + tf->protocol = ATA_PROT_PIO; + index = dev->multi_count ? 0 : 4; } else { tf->protocol = ATA_PROT_DMA; index = 16; @@ -1462,7 +1466,7 @@ void ata_dev_config(struct ata_port *ap, unsigned int i) ap->udma_mask &= ATA_UDMA5; ap->host->max_sectors = ATA_MAX_SECTORS; ap->host->hostt->max_sectors = ATA_MAX_SECTORS; - ap->device->flags |= ATA_DFLAG_LOCK_SECTORS; + ap->device[i].flags |= ATA_DFLAG_LOCK_SECTORS; } if (ap->ops->dev_config) @@ -3103,10 +3107,21 @@ static void ata_pio_data_xfer(struct ata_port *ap, unsigned char *buf, static void ata_data_xfer(struct ata_port *ap, unsigned char *buf, unsigned int buflen, int do_write) { - if (ap->flags & ATA_FLAG_MMIO) - ata_mmio_data_xfer(ap, buf, buflen, do_write); - else - ata_pio_data_xfer(ap, buf, buflen, do_write); + /* Make the crap hardware pay the costs not the good stuff */ + if (unlikely(ap->flags & ATA_FLAG_IRQ_MASK)) { + unsigned long flags; + local_irq_save(flags); + if (ap->flags & ATA_FLAG_MMIO) + ata_mmio_data_xfer(ap, buf, buflen, do_write); + else + ata_pio_data_xfer(ap, buf, buflen, do_write); + local_irq_restore(flags); + } else { + if (ap->flags & ATA_FLAG_MMIO) + ata_mmio_data_xfer(ap, buf, buflen, do_write); + else + ata_pio_data_xfer(ap, buf, buflen, do_write); + } } /** |