ahci can drive the Promise PDC42819, but obviously it can only use SATA disks connected to this controller. The controller can actually support SAS disks as well, but we only know how to use it in it's AHCI mode. Add a message to let users know that because ahci is driving their chip they can only use the SATA disks connected to this controller. Signed-off-by: Mark Nelson <mdnelson8@xxxxxxxxx> --- drivers/ata/ahci.c | 8 ++++++++ 1 file changed, 8 insertions(+) Index: linux-2.6/drivers/ata/ahci.c =================================================================== --- linux-2.6.orig/drivers/ata/ahci.c +++ linux-2.6/drivers/ata/ahci.c @@ -2988,6 +2988,14 @@ static int ahci_init_one(struct pci_dev if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable) return -ENODEV; + /* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode. + * At the moment, we can only use the AHCI mode. Let the users know + * that for SAS drives they're out of luck. + */ + if (pdev->vendor == PCI_VENDOR_ID_PROMISE) + dev_printk(KERN_INFO, &pdev->dev, "PDC42819 " + "can only drive SATA devices with this driver\n"); + /* acquire resources */ rc = pcim_enable_device(pdev); if (rc) -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
