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path: root/drivers/scsi/libata-core.c
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Diffstat (limited to 'drivers/scsi/libata-core.c')
-rw-r--r--drivers/scsi/libata-core.c31
1 files changed, 25 insertions, 6 deletions
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 9c66d4059399..f55b9b3f7b37 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -562,16 +562,28 @@ static const u8 ata_rw_cmds[] = {
562 ATA_CMD_WRITE_MULTI, 562 ATA_CMD_WRITE_MULTI,
563 ATA_CMD_READ_MULTI_EXT, 563 ATA_CMD_READ_MULTI_EXT,
564 ATA_CMD_WRITE_MULTI_EXT, 564 ATA_CMD_WRITE_MULTI_EXT,
565 0,
566 0,
567 0,
568 ATA_CMD_WRITE_MULTI_FUA_EXT,
565 /* pio */ 569 /* pio */
566 ATA_CMD_PIO_READ, 570 ATA_CMD_PIO_READ,
567 ATA_CMD_PIO_WRITE, 571 ATA_CMD_PIO_WRITE,
568 ATA_CMD_PIO_READ_EXT, 572 ATA_CMD_PIO_READ_EXT,
569 ATA_CMD_PIO_WRITE_EXT, 573 ATA_CMD_PIO_WRITE_EXT,
574 0,
575 0,
576 0,
577 0,
570 /* dma */ 578 /* dma */
571 ATA_CMD_READ, 579 ATA_CMD_READ,
572 ATA_CMD_WRITE, 580 ATA_CMD_WRITE,
573 ATA_CMD_READ_EXT, 581 ATA_CMD_READ_EXT,
574 ATA_CMD_WRITE_EXT 582 ATA_CMD_WRITE_EXT,
583 0,
584 0,
585 0,
586 ATA_CMD_WRITE_FUA_EXT
575}; 587};
576 588
577/** 589/**
@@ -584,25 +596,32 @@ static const u8 ata_rw_cmds[] = {
584 * LOCKING: 596 * LOCKING:
585 * caller. 597 * caller.
586 */ 598 */
587void ata_rwcmd_protocol(struct ata_queued_cmd *qc) 599int ata_rwcmd_protocol(struct ata_queued_cmd *qc)
588{ 600{
589 struct ata_taskfile *tf = &qc->tf; 601 struct ata_taskfile *tf = &qc->tf;
590 struct ata_device *dev = qc->dev; 602 struct ata_device *dev = qc->dev;
603 u8 cmd;
591 604
592 int index, lba48, write; 605 int index, fua, lba48, write;
593 606
607 fua = (tf->flags & ATA_TFLAG_FUA) ? 4 : 0;
594 lba48 = (tf->flags & ATA_TFLAG_LBA48) ? 2 : 0; 608 lba48 = (tf->flags & ATA_TFLAG_LBA48) ? 2 : 0;
595 write = (tf->flags & ATA_TFLAG_WRITE) ? 1 : 0; 609 write = (tf->flags & ATA_TFLAG_WRITE) ? 1 : 0;
596 610
597 if (dev->flags & ATA_DFLAG_PIO) { 611 if (dev->flags & ATA_DFLAG_PIO) {
598 tf->protocol = ATA_PROT_PIO; 612 tf->protocol = ATA_PROT_PIO;
599 index = dev->multi_count ? 0 : 4; 613 index = dev->multi_count ? 0 : 8;
600 } else { 614 } else {
601 tf->protocol = ATA_PROT_DMA; 615 tf->protocol = ATA_PROT_DMA;
602 index = 8; 616 index = 16;
603 } 617 }
604 618
605 tf->command = ata_rw_cmds[index + lba48 + write]; 619 cmd = ata_rw_cmds[index + fua + lba48 + write];
620 if (cmd) {
621 tf->command = cmd;
622 return 0;
623 }
624 return -1;
606} 625}
607 626
608static const char * const xfer_mode_str[] = { 627static const char * const xfer_mode_str[] = {