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-rw-r--r--drivers/scsi/libata-core.c220
-rw-r--r--drivers/scsi/libata-scsi.c291
-rw-r--r--drivers/scsi/sata_promise.c6
3 files changed, 337 insertions, 180 deletions
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index e5b01997117..03d422e99e5 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -62,6 +62,7 @@
static unsigned int ata_busy_sleep (struct ata_port *ap,
unsigned long tmout_pat,
unsigned long tmout);
+static void ata_dev_init_params(struct ata_port *ap, struct ata_device *dev);
static void ata_set_mode(struct ata_port *ap);
static void ata_dev_set_xfermode(struct ata_port *ap, struct ata_device *dev);
static unsigned int ata_get_mode_mask(struct ata_port *ap, int shift);
@@ -1131,7 +1132,7 @@ static inline void ata_dump_id(struct ata_device *dev)
static void ata_dev_identify(struct ata_port *ap, unsigned int device)
{
struct ata_device *dev = &ap->device[device];
- unsigned int i;
+ unsigned int major_version;
u16 tmp;
unsigned long xfer_modes;
u8 status;
@@ -1229,9 +1230,9 @@ retry:
* common ATA, ATAPI feature tests
*/
- /* we require LBA and DMA support (bits 8 & 9 of word 49) */
- if (!ata_id_has_dma(dev->id) || !ata_id_has_lba(dev->id)) {
- printk(KERN_DEBUG "ata%u: no dma/lba\n", ap->id);
+ /* we require DMA support (bits 8 of word 49) */
+ if (!ata_id_has_dma(dev->id)) {
+ printk(KERN_DEBUG "ata%u: no dma\n", ap->id);
goto err_out_nosup;
}
@@ -1251,32 +1252,69 @@ retry:
if (!ata_id_is_ata(dev->id)) /* sanity check */
goto err_out_nosup;
+ /* get major version */
tmp = dev->id[ATA_ID_MAJOR_VER];
- for (i = 14; i >= 1; i--)
- if (tmp & (1 << i))
+ for (major_version = 14; major_version >= 1; major_version--)
+ if (tmp & (1 << major_version))
break;
- /* we require at least ATA-3 */
- if (i < 3) {
- printk(KERN_DEBUG "ata%u: no ATA-3\n", ap->id);
- goto err_out_nosup;
- }
+ /*
+ * The exact sequence expected by certain pre-ATA4 drives is:
+ * SRST RESET
+ * IDENTIFY
+ * INITIALIZE DEVICE PARAMETERS
+ * anything else..
+ * Some drives were very specific about that exact sequence.
+ */
+ if (major_version < 4 || (!ata_id_has_lba(dev->id)))
+ ata_dev_init_params(ap, dev);
+
+ if (ata_id_has_lba(dev->id)) {
+ dev->flags |= ATA_DFLAG_LBA;
+
+ if (ata_id_has_lba48(dev->id)) {
+ dev->flags |= ATA_DFLAG_LBA48;
+ dev->n_sectors = ata_id_u64(dev->id, 100);
+ } else {
+ dev->n_sectors = ata_id_u32(dev->id, 60);
+ }
+
+ /* print device info to dmesg */
+ printk(KERN_INFO "ata%u: dev %u ATA-%d, max %s, %Lu sectors:%s\n",
+ ap->id, device,
+ major_version,
+ ata_mode_string(xfer_modes),
+ (unsigned long long)dev->n_sectors,
+ dev->flags & ATA_DFLAG_LBA48 ? " LBA48" : " LBA");
+ } else {
+ /* CHS */
+
+ /* Default translation */
+ dev->cylinders = dev->id[1];
+ dev->heads = dev->id[3];
+ dev->sectors = dev->id[6];
+ dev->n_sectors = dev->cylinders * dev->heads * dev->sectors;
+
+ if (ata_id_current_chs_valid(dev->id)) {
+ /* Current CHS translation is valid. */
+ dev->cylinders = dev->id[54];
+ dev->heads = dev->id[55];
+ dev->sectors = dev->id[56];
+
+ dev->n_sectors = ata_id_u32(dev->id, 57);
+ }
+
+ /* print device info to dmesg */
+ printk(KERN_INFO "ata%u: dev %u ATA-%d, max %s, %Lu sectors: CHS %d/%d/%d\n",
+ ap->id, device,
+ major_version,
+ ata_mode_string(xfer_modes),
+ (unsigned long long)dev->n_sectors,
+ (int)dev->cylinders, (int)dev->heads, (int)dev->sectors);
- if (ata_id_has_lba48(dev->id)) {
- dev->flags |= ATA_DFLAG_LBA48;
- dev->n_sectors = ata_id_u64(dev->id, 100);
- } else {
- dev->n_sectors = ata_id_u32(dev->id, 60);
}
ap->host->max_cmd_len = 16;
-
- /* print device info to dmesg */
- printk(KERN_INFO "ata%u: dev %u ATA, max %s, %Lu sectors:%s\n",
- ap->id, device,
- ata_mode_string(xfer_modes),
- (unsigned long long)dev->n_sectors,
- dev->flags & ATA_DFLAG_LBA48 ? " lba48" : "");
}
/* ATAPI-specific feature tests */
@@ -2144,6 +2182,54 @@ static void ata_dev_set_xfermode(struct ata_port *ap, struct ata_device *dev)
}
/**
+ * ata_dev_init_params - Issue INIT DEV PARAMS command
+ * @ap: Port associated with device @dev
+ * @dev: Device to which command will be sent
+ *
+ * LOCKING:
+ */
+
+static void ata_dev_init_params(struct ata_port *ap, struct ata_device *dev)
+{
+ DECLARE_COMPLETION(wait);
+ struct ata_queued_cmd *qc;
+ int rc;
+ unsigned long flags;
+ u16 sectors = dev->id[6];
+ u16 heads = dev->id[3];
+
+ /* Number of sectors per track 1-255. Number of heads 1-16 */
+ if (sectors < 1 || sectors > 255 || heads < 1 || heads > 16)
+ return;
+
+ /* set up init dev params taskfile */
+ DPRINTK("init dev params \n");
+
+ qc = ata_qc_new_init(ap, dev);
+ BUG_ON(qc == NULL);
+
+ qc->tf.command = ATA_CMD_INIT_DEV_PARAMS;
+ qc->tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
+ qc->tf.protocol = ATA_PROT_NODATA;
+ qc->tf.nsect = sectors;
+ qc->tf.device |= (heads - 1) & 0x0f; /* max head = num. of heads - 1 */
+
+ qc->waiting = &wait;
+ qc->complete_fn = ata_qc_complete_noop;
+
+ spin_lock_irqsave(&ap->host_set->lock, flags);
+ rc = ata_qc_issue(qc);
+ spin_unlock_irqrestore(&ap->host_set->lock, flags);
+
+ if (rc)
+ ata_port_disable(ap);
+ else
+ wait_for_completion(&wait);
+
+ DPRINTK("EXIT\n");
+}
+
+/**
* ata_sg_clean - Unmap DMA memory associated with command
* @qc: Command containing DMA memory to be released
*
@@ -2425,20 +2511,20 @@ void ata_poll_qc_complete(struct ata_queued_cmd *qc, u8 drv_stat)
static unsigned long ata_pio_poll(struct ata_port *ap)
{
u8 status;
- unsigned int poll_state = PIO_ST_UNKNOWN;
- unsigned int reg_state = PIO_ST_UNKNOWN;
- const unsigned int tmout_state = PIO_ST_TMOUT;
-
- switch (ap->pio_task_state) {
- case PIO_ST:
- case PIO_ST_POLL:
- poll_state = PIO_ST_POLL;
- reg_state = PIO_ST;
+ unsigned int poll_state = HSM_ST_UNKNOWN;
+ unsigned int reg_state = HSM_ST_UNKNOWN;
+ const unsigned int tmout_state = HSM_ST_TMOUT;
+
+ switch (ap->hsm_task_state) {
+ case HSM_ST:
+ case HSM_ST_POLL:
+ poll_state = HSM_ST_POLL;
+ reg_state = HSM_ST;
break;
- case PIO_ST_LAST:
- case PIO_ST_LAST_POLL:
- poll_state = PIO_ST_LAST_POLL;
- reg_state = PIO_ST_LAST;
+ case HSM_ST_LAST:
+ case HSM_ST_LAST_POLL:
+ poll_state = HSM_ST_LAST_POLL;
+ reg_state = HSM_ST_LAST;
break;
default:
BUG();
@@ -2448,14 +2534,14 @@ static unsigned long ata_pio_poll(struct ata_port *ap)
status = ata_chk_status(ap);
if (status & ATA_BUSY) {
if (time_after(jiffies, ap->pio_task_timeout)) {
- ap->pio_task_state = tmout_state;
+ ap->hsm_task_state = tmout_state;
return 0;
}
- ap->pio_task_state = poll_state;
+ ap->hsm_task_state = poll_state;
return ATA_SHORT_PAUSE;
}
- ap->pio_task_state = reg_state;
+ ap->hsm_task_state = reg_state;
return 0;
}
@@ -2480,14 +2566,14 @@ static int ata_pio_complete (struct ata_port *ap)
* we enter, BSY will be cleared in a chk-status or two. If not,
* the drive is probably seeking or something. Snooze for a couple
* msecs, then chk-status again. If still busy, fall back to
- * PIO_ST_POLL state.
+ * HSM_ST_POLL state.
*/
drv_stat = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 10);
if (drv_stat & (ATA_BUSY | ATA_DRQ)) {
msleep(2);
drv_stat = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 10);
if (drv_stat & (ATA_BUSY | ATA_DRQ)) {
- ap->pio_task_state = PIO_ST_LAST_POLL;
+ ap->hsm_task_state = HSM_ST_LAST_POLL;
ap->pio_task_timeout = jiffies + ATA_TMOUT_PIO;
return 0;
}
@@ -2495,14 +2581,14 @@ static int ata_pio_complete (struct ata_port *ap)
drv_stat = ata_wait_idle(ap);
if (!ata_ok(drv_stat)) {
- ap->pio_task_state = PIO_ST_ERR;
+ ap->hsm_task_state = HSM_ST_ERR;
return 0;
}
qc = ata_qc_from_tag(ap, ap->active_tag);
assert(qc != NULL);
- ap->pio_task_state = PIO_ST_IDLE;
+ ap->hsm_task_state = HSM_ST_IDLE;
ata_poll_qc_complete(qc, drv_stat);
@@ -2662,7 +2748,7 @@ static void ata_pio_sector(struct ata_queued_cmd *qc)
unsigned char *buf;
if (qc->cursect == (qc->nsect - 1))
- ap->pio_task_state = PIO_ST_LAST;
+ ap->hsm_task_state = HSM_ST_LAST;
page = sg[qc->cursg].page;
offset = sg[qc->cursg].offset + qc->cursg_ofs * ATA_SECT_SIZE;
@@ -2712,7 +2798,7 @@ static void __atapi_pio_bytes(struct ata_queued_cmd *qc, unsigned int bytes)
unsigned int offset, count;
if (qc->curbytes + bytes >= qc->nbytes)
- ap->pio_task_state = PIO_ST_LAST;
+ ap->hsm_task_state = HSM_ST_LAST;
next_sg:
if (unlikely(qc->cursg >= qc->n_elem)) {
@@ -2734,7 +2820,7 @@ next_sg:
for (i = 0; i < words; i++)
ata_data_xfer(ap, (unsigned char*)pad_buf, 2, do_write);
- ap->pio_task_state = PIO_ST_LAST;
+ ap->hsm_task_state = HSM_ST_LAST;
return;
}
@@ -2815,7 +2901,7 @@ static void atapi_pio_bytes(struct ata_queued_cmd *qc)
err_out:
printk(KERN_INFO "ata%u: dev %u: ATAPI check failed\n",
ap->id, dev->devno);
- ap->pio_task_state = PIO_ST_ERR;
+ ap->hsm_task_state = HSM_ST_ERR;
}
/**
@@ -2837,14 +2923,14 @@ static void ata_pio_block(struct ata_port *ap)
* a chk-status or two. If not, the drive is probably seeking
* or something. Snooze for a couple msecs, then
* chk-status again. If still busy, fall back to
- * PIO_ST_POLL state.
+ * HSM_ST_POLL state.
*/
status = ata_busy_wait(ap, ATA_BUSY, 5);
if (status & ATA_BUSY) {
msleep(2);
status = ata_busy_wait(ap, ATA_BUSY, 10);
if (status & ATA_BUSY) {
- ap->pio_task_state = PIO_ST_POLL;
+ ap->hsm_task_state = HSM_ST_POLL;
ap->pio_task_timeout = jiffies + ATA_TMOUT_PIO;
return;
}
@@ -2856,7 +2942,7 @@ static void ata_pio_block(struct ata_port *ap)
if (is_atapi_taskfile(&qc->tf)) {
/* no more data to transfer or unsupported ATAPI command */
if ((status & ATA_DRQ) == 0) {
- ap->pio_task_state = PIO_ST_LAST;
+ ap->hsm_task_state = HSM_ST_LAST;
return;
}
@@ -2864,7 +2950,7 @@ static void ata_pio_block(struct ata_port *ap)
} else {
/* handle BSY=0, DRQ=0 as error */
if ((status & ATA_DRQ) == 0) {
- ap->pio_task_state = PIO_ST_ERR;
+ ap->hsm_task_state = HSM_ST_ERR;
return;
}
@@ -2884,7 +2970,7 @@ static void ata_pio_error(struct ata_port *ap)
printk(KERN_WARNING "ata%u: PIO error, drv_stat 0x%x\n",
ap->id, drv_stat);
- ap->pio_task_state = PIO_ST_IDLE;
+ ap->hsm_task_state = HSM_ST_IDLE;
ata_poll_qc_complete(qc, drv_stat | ATA_ERR);
}
@@ -2899,25 +2985,25 @@ fsm_start:
timeout = 0;
qc_completed = 0;
- switch (ap->pio_task_state) {
- case PIO_ST_IDLE:
+ switch (ap->hsm_task_state) {
+ case HSM_ST_IDLE:
return;
- case PIO_ST:
+ case HSM_ST:
ata_pio_block(ap);
break;
- case PIO_ST_LAST:
+ case HSM_ST_LAST:
qc_completed = ata_pio_complete(ap);
break;
- case PIO_ST_POLL:
- case PIO_ST_LAST_POLL:
+ case HSM_ST_POLL:
+ case HSM_ST_LAST_POLL:
timeout = ata_pio_poll(ap);
break;
- case PIO_ST_TMOUT:
- case PIO_ST_ERR:
+ case HSM_ST_TMOUT:
+ case HSM_ST_ERR:
ata_pio_error(ap);
return;
}
@@ -3156,8 +3242,12 @@ struct ata_queued_cmd *ata_qc_new_init(struct ata_port *ap,
ata_tf_init(ap, &qc->tf, dev->devno);
- if (dev->flags & ATA_DFLAG_LBA48)
- qc->tf.flags |= ATA_TFLAG_LBA48;
+ if (dev->flags & ATA_DFLAG_LBA) {
+ qc->tf.flags |= ATA_TFLAG_LBA;
+
+ if (dev->flags & ATA_DFLAG_LBA48)
+ qc->tf.flags |= ATA_TFLAG_LBA48;
+ }
}
return qc;
@@ -3360,7 +3450,7 @@ int ata_qc_issue_prot(struct ata_queued_cmd *qc)
case ATA_PROT_PIO: /* load tf registers, initiate polling pio */
ata_qc_set_polling(qc);
ata_tf_to_host_nolock(ap, &qc->tf);
- ap->pio_task_state = PIO_ST;
+ ap->hsm_task_state = HSM_ST;
queue_work(ata_wq, &ap->pio_task);
break;
@@ -3586,7 +3676,7 @@ u8 ata_bmdma_status(struct ata_port *ap)
void __iomem *mmio = (void __iomem *) ap->ioaddr.bmdma_addr;
host_stat = readb(mmio + ATA_DMA_STATUS);
} else
- host_stat = inb(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
+ host_stat = inb(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
return host_stat;
}
@@ -3806,7 +3896,7 @@ static void atapi_packet_task(void *_data)
ata_data_xfer(ap, qc->cdb, ap->cdb_len, 1);
/* PIO commands are handled by polling */
- ap->pio_task_state = PIO_ST;
+ ap->hsm_task_state = HSM_ST;
queue_work(ata_wq, &ap->pio_task);
}
diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c
index 104fd9a63e7..03b7a6dd95f 100644
--- a/drivers/scsi/libata-scsi.c
+++ b/drivers/scsi/libata-scsi.c
@@ -504,77 +504,107 @@ static unsigned int ata_scsi_flush_xlat(struct ata_queued_cmd *qc, u8 *scsicmd)
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 sect = 0;
- u32 n_sect = 0;
+ u64 block = 0;
+ u32 n_block = 0;
tf->flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
tf->protocol = ATA_PROT_NODATA;
- tf->device |= ATA_LBA;
if (scsicmd[0] == VERIFY) {
- sect |= ((u64)scsicmd[2]) << 24;
- sect |= ((u64)scsicmd[3]) << 16;
- sect |= ((u64)scsicmd[4]) << 8;
- sect |= ((u64)scsicmd[5]);
+ block |= ((u64)scsicmd[2]) << 24;
+ block |= ((u64)scsicmd[3]) << 16;
+ block |= ((u64)scsicmd[4]) << 8;
+ block |= ((u64)scsicmd[5]);
- n_sect |= ((u32)scsicmd[7]) << 8;
- n_sect |= ((u32)scsicmd[8]);
+ n_block |= ((u32)scsicmd[7]) << 8;
+ n_block |= ((u32)scsicmd[8]);
}
else if (scsicmd[0] == VERIFY_16) {
- sect |= ((u64)scsicmd[2]) << 56;
- sect |= ((u64)scsicmd[3]) << 48;
- sect |= ((u64)scsicmd[4]) << 40;
- sect |= ((u64)scsicmd[5]) << 32;
- sect |= ((u64)scsicmd[6]) << 24;
- sect |= ((u64)scsicmd[7]) << 16;
- sect |= ((u64)scsicmd[8]) << 8;
- sect |= ((u64)scsicmd[9]);
-
- n_sect |= ((u32)scsicmd[10]) << 24;
- n_sect |= ((u32)scsicmd[11]) << 16;
- n_sect |= ((u32)scsicmd[12]) << 8;
- n_sect |= ((u32)scsicmd[13]);
+ block |= ((u64)scsicmd[2]) << 56;
+ block |= ((u64)scsicmd[3]) << 48;
+ block |= ((u64)scsicmd[4]) << 40;
+ block |= ((u64)scsicmd[5]) << 32;
+ block |= ((u64)scsicmd[6]) << 24;
+ block |= ((u64)scsicmd[7]) << 16;
+ block |= ((u64)scsicmd[8]) << 8;
+ block |= ((u64)scsicmd[9]);
+
+ n_block |= ((u32)scsicmd[10]) << 24;
+ n_block |= ((u32)scsicmd[11]) << 16;
+ n_block |= ((u32)scsicmd[12]) << 8;
+ n_block |= ((u32)scsicmd[13]);
}
else
return 1;
- if (!n_sect)
+ if (!n_block)
return 1;
- if (sect >= dev_sectors)
+ if (block >= dev_sectors)
return 1;
- if ((sect + n_sect) > dev_sectors)
+ if ((block + n_block) > dev_sectors)
return 1;
if (lba48) {
- if (n_sect > (64 * 1024))
+ if (n_block > (64 * 1024))
return 1;
} else {
- if (n_sect > 256)
+ if (n_block > 256)
return 1;
}
- if (lba48) {
- tf->command = ATA_CMD_VERIFY_EXT;
+ if (lba) {
+ if (lba48) {
+ tf->command = ATA_CMD_VERIFY_EXT;
- tf->hob_nsect = (n_sect >> 8) & 0xff;
+ tf->hob_nsect = (n_block >> 8) & 0xff;
- tf->hob_lbah = (sect >> 40) & 0xff;
- tf->hob_lbam = (sect >> 32) & 0xff;
- tf->hob_lbal = (sect >> 24) & 0xff;
- } else {
- tf->command = ATA_CMD_VERIFY;
+ tf->hob_lbah = (block >> 40) & 0xff;
+ tf->hob_lbam = (block >> 32) & 0xff;
+ tf->hob_lbal = (block >> 24) & 0xff;
+ } else {
+ tf->command = ATA_CMD_VERIFY;
- tf->device |= (sect >> 24) & 0xf;
- }
+ tf->device |= (block >> 24) & 0xf;
+ }
+
+ tf->nsect = n_block & 0xff;
- tf->nsect = n_sect & 0xff;
+ tf->lbah = (block >> 16) & 0xff;
+ tf->lbam = (block >> 8) & 0xff;
+ tf->lbal = block & 0xff;
- tf->lbah = (sect >> 16) & 0xff;
- tf->lbam = (sect >> 8) & 0xff;
- tf->lbal = sect & 0xff;
+ tf->device |= ATA_LBA;
+ } else {
+ /* CHS */
+ u32 sect, head, cyl, track;
+
+ /* Convert LBA to CHS */
+ track = (u32)block / dev->sectors;
+ cyl = track / dev->heads;
+ head = track % dev->heads;
+ sect = (u32)block % dev->sectors + 1;
+
+ DPRINTK("block[%u] track[%u] cyl[%u] head[%u] sect[%u] \n", (u32)block, track, cyl, head, sect);
+
+ /* Check whether the converted CHS can fit.
+ Cylinder: 0-65535
+ Head: 0-15
+ Sector: 1-255*/
+ if ((cyl >> 16) || (head >> 4) || (sect >> 8) || (!sect))
+ return 1;
+
+ tf->command = ATA_CMD_VERIFY;
+ tf->nsect = n_block & 0xff; /* Sector count 0 means 256 sectors */
+ tf->lbal = sect;
+ tf->lbam = cyl;
+ tf->lbah = cyl >> 8;
+ tf->device |= head;
+ }
return 0;
}
@@ -602,11 +632,14 @@ static unsigned int ata_scsi_verify_xlat(struct ata_queued_cmd *qc, u8 *scsicmd)
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 = 0;
+ u32 n_block = 0;
tf->flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
tf->protocol = qc->dev->xfer_protocol;
- tf->device |= ATA_LBA;
if (scsicmd[0] == READ_10 || scsicmd[0] == READ_6 ||
scsicmd[0] == READ_16) {
@@ -616,90 +649,114 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, u8 *scsicmd)
tf->flags |= ATA_TFLAG_WRITE;
}
+ /* Calculate the SCSI LBA and transfer length. */
if (scsicmd[0] == READ_10 || scsicmd[0] == WRITE_10) {
- if (lba48) {
- tf->hob_nsect = scsicmd[7];
- tf->hob_lbal = scsicmd[2];
+ block |= ((u64)scsicmd[2]) << 24;
+ block |= ((u64)scsicmd[3]) << 16;
+ block |= ((u64)scsicmd[4]) << 8;
+ block |= ((u64)scsicmd[5]);
- qc->nsect = ((unsigned int)scsicmd[7] << 8) |
- scsicmd[8];
- } else {
- /* if we don't support LBA48 addressing, the request
- * -may- be too large. */
- if ((scsicmd[2] & 0xf0) || scsicmd[7])
- return 1;
-
- /* stores LBA27:24 in lower 4 bits of device reg */
- tf->device |= scsicmd[2];
-
- qc->nsect = scsicmd[8];
- }
-
- tf->nsect = scsicmd[8];
- tf->lbal = scsicmd[5];
- tf->lbam = scsicmd[4];
- tf->lbah = scsicmd[3];
+ n_block |= ((u32)scsicmd[7]) << 8;
+ n_block |= ((u32)scsicmd[8]);
VPRINTK("ten-byte command\n");
- if (qc->nsect == 0) /* we don't support length==0 cmds */
- return 1;
- return 0;
- }
-
- if (scsicmd[0] == READ_6 || scsicmd[0] == WRITE_6) {
- qc->nsect = tf->nsect = scsicmd[4];
- if (!qc->nsect) {
- qc->nsect = 256;
- if (lba48)
- tf->hob_nsect = 1;
- }
-
- tf->lbal = scsicmd[3];
- tf->lbam = scsicmd[2];
- tf->lbah = scsicmd[1] & 0x1f; /* mask out reserved bits */
-
+ } else if (scsicmd[0] == READ_6 || scsicmd[0] == WRITE_6) {
+ block |= ((u64)scsicmd[2]) << 8;
+ block |= ((u64)scsicmd[3]);
+
+ n_block |= ((u32)scsicmd[4]);
+ if (!n_block)
+ n_block = 256;
+
VPRINTK("six-byte command\n");
- return 0;
+ } else if (scsicmd[0] == READ_16 || scsicmd[0] == WRITE_16) {
+ block |= ((u64)scsicmd[2]) << 56;
+ block |= ((u64)scsicmd[3]) << 48;
+ block |= ((u64)scsicmd[4]) << 40;
+ block |= ((u64)scsicmd[5]) << 32;
+ block |= ((u64)scsicmd[6]) << 24;
+ block |= ((u64)scsicmd[7]) << 16;
+ block |= ((u64)scsicmd[8]) << 8;
+ block |= ((u64)scsicmd[9]);
+
+ n_block |= ((u32)scsicmd[10]) << 24;
+ n_block |= ((u32)scsicmd[11]) << 16;
+ n_block |= ((u32)scsicmd[12]) << 8;
+ n_block |= ((u32)scsicmd[13]);
+
+ VPRINTK("sixteen-byte command\n");
+ } else {
+ DPRINTK("no-byte command\n");
+ return 1;
}
- if (scsicmd[0] == READ_16 || scsicmd[0] == WRITE_16) {
- /* rule out impossible LBAs and sector counts */
- if (scsicmd[2] || scsicmd[3] || scsicmd[10] || scsicmd[11])
- return 1;
+ /* Check and compose ATA command */
+ if (!n_block)
+ /* In ATA, sector count 0 means 256 or 65536 sectors, not 0 sectors. */
+ return 1;
+ if (lba) {
if (lba48) {
- tf->hob_nsect = scsicmd[12];
- tf->hob_lbal = scsicmd[6];
- tf->hob_lbam = scsicmd[5];
- tf->hob_lbah = scsicmd[4];
-
- qc->nsect = ((unsigned int)scsicmd[12] << 8) |
- scsicmd[13];
- } else {
- /* once again, filter out impossible non-zero values */
- if (scsicmd[4] || scsicmd[5] || scsicmd[12] ||
- (scsicmd[6] & 0xf0))
+ /* The request -may- be too large for LBA48. */
+ if ((block >> 48) || (n_block > 65536))
return 1;
- /* stores LBA27:24 in lower 4 bits of device reg */
- tf->device |= scsicmd[6];
+ 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 */
+
+ /* The request -may- be too large for LBA28. */
+ if ((block >> 28) || (n_block > 256))
+ return 1;
- qc->nsect = scsicmd[13];
+ tf->device |= (block >> 24) & 0xf;
}
+
+ qc->nsect = n_block;
+ tf->nsect = n_block & 0xff;
- tf->nsect = scsicmd[13];
- tf->lbal = scsicmd[9];
- tf->lbam = scsicmd[8];
- tf->lbah = scsicmd[7];
+ tf->lbah = (block >> 16) & 0xff;
+ tf->lbam = (block >> 8) & 0xff;
+ tf->lbal = block & 0xff;
- VPRINTK("sixteen-byte command\n");
- if (qc->nsect == 0) /* we don't support length==0 cmds */
+ tf->device |= ATA_LBA;
+ } else {
+ /* CHS */
+ u32 sect, head, cyl, track;
+
+ /* The request -may- be too large for CHS addressing. */
+ if ((block >> 28) || (n_block > 256))
return 1;
- return 0;
+
+ /* Convert LBA to CHS */
+ track = (u32)block / dev->sectors;
+ cyl = track / dev->heads;
+ head = track % dev->heads;
+ sect = (u32)block % dev->sectors + 1;
+
+ DPRINTK("block[%u] track[%u] cyl[%u] head[%u] sect[%u] \n",
+ (u32)block, track, cyl, head, sect);
+
+ /* Check whether the converted CHS can fit.
+ Cylinder: 0-65535
+ Head: 0-15
+ Sector: 1-255*/
+ if ((cyl >> 16) || (head >> 4) || (sect >> 8) || (!sect))
+ return 1;
+
+ qc->nsect = n_block;
+ tf->nsect = n_block & 0xff; /* Sector count 0 means 256 sectors */
+ tf->lbal = sect;
+ tf->lbam = cyl;
+ tf->lbah = cyl >> 8;
+ tf->device |= head;
}
- DPRINTK("no-byte command\n");
- return 1;
+ return 0;
}
static int ata_scsi_qc_complete(struct ata_queued_cmd *qc, u8 drv_stat)
@@ -1246,10 +1303,20 @@ unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf,
VPRINTK("ENTER\n");
- if (ata_id_has_lba48(args->id))
- n_sectors = ata_id_u64(args->id, 100);
- else
- n_sectors = ata_id_u32(args->id, 60);
+ if (ata_id_has_lba(args->id)) {
+ if (ata_id_has_lba48(args->id))
+ n_sectors = ata_id_u64(args->id, 100);
+ else
+ n_sectors = ata_id_u32(args->id, 60);
+ } else {
+ /* CHS default translation */
+ n_sectors = args->id[1] * args->id[3] * args->id[6];
+
+ if (ata_id_current_chs_valid(args->id))
+ /* CHS current translation */
+ n_sectors = ata_id_u32(args->id, 57);
+ }
+
n_sectors--; /* ATA TotalUserSectors - 1 */
if (args->cmd->cmnd[0] == READ_CAPACITY) {
diff --git a/drivers/scsi/sata_promise.c b/drivers/scsi/sata_promise.c
index 538ad727bd2..def7e0d9dac 100644
--- a/drivers/scsi/sata_promise.c
+++ b/drivers/scsi/sata_promise.c
@@ -438,11 +438,11 @@ static inline unsigned int pdc_host_intr( struct ata_port *ap,
break;
default:
- ap->stats.idle_irq++;
- break;
+ ap->stats.idle_irq++;
+ break;
}
- return handled;
+ return handled;
}
static void pdc_irq_clear(struct ata_port *ap)
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-29 05:30:58 +0000