[PATCH] libata: Fix heuristic typos add LBA48PIO flag and support code, add IRQ flag...

[pandora-kernel.git] / drivers / scsi / libata-core.c

diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index b42acbe..e604445 100644 (file)
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -611,6 +611,10 @@ 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;