diff options
| -rw-r--r-- | drivers/scsi/ahci.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c index df779ba8749..4bb77f62b3b 100644 --- a/drivers/scsi/ahci.c +++ b/drivers/scsi/ahci.c @@ -164,6 +164,7 @@ enum { /* ap->flags bits */ AHCI_FLAG_RESET_NEEDS_CLO = (1 << 24), + AHCI_FLAG_NO_NCQ = (1 << 25), }; struct ahci_cmd_hdr { @@ -277,7 +278,7 @@ static const struct ata_port_info ahci_port_info[] = { .host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA | ATA_FLAG_SKIP_D2H_BSY | - AHCI_FLAG_RESET_NEEDS_CLO, + AHCI_FLAG_RESET_NEEDS_CLO | AHCI_FLAG_NO_NCQ, .pio_mask = 0x1f, /* pio0-4 */ .udma_mask = 0x7f, /* udma0-6 ; FIXME */ .port_ops = &ahci_ops, @@ -1386,7 +1387,8 @@ static int ahci_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) if (rc) goto err_out_hpriv; - if (hpriv->cap & HOST_CAP_NCQ) + if (!(probe_ent->host_flags & AHCI_FLAG_NO_NCQ) && + (hpriv->cap & HOST_CAP_NCQ)) probe_ent->host_flags |= ATA_FLAG_NCQ; ahci_print_info(probe_ent); |