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authorAlbert Lee <albertcc@tw.ibm.com>2005-10-12 15:04:18 +0800
committerJeff Garzik <jgarzik@pobox.com>2005-10-18 17:16:13 -0400
commit07506697d1c615924298406f2357810709c09bcd (patch)
treebd4f223231a92245b8247c6fb8eb23d9b5c3f3be /drivers/scsi/libata-scsi.c
parent5a476deff3d17093da39c4eccb2692ba714dcb11 (diff)
[PATCH] libata CHS: move the initialization of taskfile LBA flags (revise #6)
move the initialization of taskfile LBA flags "ATA_TFLAG_LBA" and "ATA_TFLAG_LBA48 flags" to the SCSI translation functions Signed-off-by: Albert Lee <albertcc@tw.ibm.com> ============= Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Diffstat (limited to 'drivers/scsi/libata-scsi.c')
-rw-r--r--drivers/scsi/libata-scsi.c42
1 files changed, 25 insertions, 17 deletions
diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c
index c64169ca7ff0..ea7a4d8a6fc9 100644
--- a/drivers/scsi/libata-scsi.c
+++ b/drivers/scsi/libata-scsi.c
@@ -492,7 +492,7 @@ static unsigned int ata_scsi_flush_xlat(struct ata_queued_cmd *qc, u8 *scsicmd)
tf->flags |= ATA_TFLAG_DEVICE;
tf->protocol = ATA_PROT_NODATA;
- if ((tf->flags & ATA_TFLAG_LBA48) &&
+ if ((qc->dev->flags & ATA_DFLAG_LBA48) &&
(ata_id_has_flush_ext(qc->dev->id)))
tf->command = ATA_CMD_FLUSH_EXT;
else
@@ -612,8 +612,6 @@ static unsigned int ata_scsi_verify_xlat(struct ata_queued_cmd *qc, u8 *scsicmd)
{
struct ata_taskfile *tf = &qc->tf;
struct ata_device *dev = qc->dev;
- unsigned int lba = tf->flags & ATA_TFLAG_LBA;
- unsigned int lba48 = tf->flags & ATA_TFLAG_LBA48;
u64 dev_sectors = qc->dev->n_sectors;
u64 block;
u32 n_block;
@@ -634,16 +632,16 @@ static unsigned int ata_scsi_verify_xlat(struct ata_queued_cmd *qc, u8 *scsicmd)
goto out_of_range;
if ((block + n_block) > dev_sectors)
goto out_of_range;
- if (lba48) {
- if (n_block > (64 * 1024))
- goto invalid_fld;
- } else {
- if (n_block > 256)
- goto invalid_fld;
- }
- if (lba) {
- if (lba48) {
+ if (dev->flags & ATA_DFLAG_LBA) {
+ tf->flags |= ATA_TFLAG_LBA;
+
+ if (dev->flags & ATA_DFLAG_LBA48) {
+ if (n_block > (64 * 1024))
+ goto invalid_fld;
+
+ /* use LBA48 */
+ tf->flags |= ATA_TFLAG_LBA48;
tf->command = ATA_CMD_VERIFY_EXT;
tf->hob_nsect = (n_block >> 8) & 0xff;
@@ -652,6 +650,10 @@ static unsigned int ata_scsi_verify_xlat(struct ata_queued_cmd *qc, u8 *scsicmd)
tf->hob_lbam = (block >> 32) & 0xff;
tf->hob_lbal = (block >> 24) & 0xff;
} else {
+ if (n_block > 256)
+ goto invalid_fld;
+
+ /* use LBA28 */
tf->command = ATA_CMD_VERIFY;
tf->device |= (block >> 24) & 0xf;
@@ -668,6 +670,9 @@ static unsigned int ata_scsi_verify_xlat(struct ata_queued_cmd *qc, u8 *scsicmd)
/* CHS */
u32 sect, head, cyl, track;
+ if (n_block > 256)
+ goto invalid_fld;
+
/* Convert LBA to CHS */
track = (u32)block / dev->sectors;
cyl = track / dev->heads;
@@ -733,8 +738,6 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, u8 *scsicmd)
{
struct ata_taskfile *tf = &qc->tf;
struct ata_device *dev = qc->dev;
- unsigned int lba = tf->flags & ATA_TFLAG_LBA;
- unsigned int lba48 = tf->flags & ATA_TFLAG_LBA48;
u64 block;
u32 n_block;
@@ -783,19 +786,24 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, u8 *scsicmd)
*/
goto nothing_to_do;
- if (lba) {
- if (lba48) {
+ if (dev->flags & ATA_DFLAG_LBA) {
+ tf->flags |= ATA_TFLAG_LBA;
+
+ if (dev->flags & ATA_DFLAG_LBA48) {
/* The request -may- be too large for LBA48. */
if ((block >> 48) || (n_block > 65536))
goto out_of_range;
+ /* use LBA48 */
+ tf->flags |= ATA_TFLAG_LBA48;
+
tf->hob_nsect = (n_block >> 8) & 0xff;
tf->hob_lbah = (block >> 40) & 0xff;
tf->hob_lbam = (block >> 32) & 0xff;
tf->hob_lbal = (block >> 24) & 0xff;
} else {
- /* LBA28 */
+ /* use LBA28 */
/* The request -may- be too large for LBA28. */
if ((block >> 28) || (n_block > 256))