From 07506697d1c615924298406f2357810709c09bcd Mon Sep 17 00:00:00 2001 From: Albert Lee Date: Wed, 12 Oct 2005 15:04:18 +0800 Subject: [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 ============= Signed-off-by: Jeff Garzik --- drivers/scsi/libata-scsi.c | 42 +++++++++++++++++++++++++----------------- 1 file changed, 25 insertions(+), 17 deletions(-) (limited to 'drivers/scsi/libata-scsi.c') 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)) -- cgit v1.2.2