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authorAlbert Lee <albertcc@tw.ibm.com>2005-09-27 17:36:35 +0800
committerJeff Garzik <jgarzik@pobox.com>2005-09-28 11:58:39 -0400
commit14be71f4c5c5ad1e222c5202ee6d234e9c8828b7 (patch)
tree715ac051b4fd2e3d62219110be4fc71d2f1a06f8
parentee500aabf10323a7e313731b8c0be7c2c6dd27c7 (diff)
[PATCH] libata: rename host states
Changes: s/PIO_ST_/HSM_ST_/ and s/pio_task_state/hsm_task_state/. Signed-off-by: Albert Lee <albertcc@tw.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
-rw-r--r--drivers/scsi/libata-core.c78
-rw-r--r--include/linux/libata.h20
2 files changed, 49 insertions, 49 deletions
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index cc68f5706ac..c4fcdc30f18 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -2425,20 +2425,20 @@ 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 +2448,14 @@ 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 +2480,14 @@ 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 +2495,14 @@ 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 +2662,7 @@ 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 +2712,7 @@ 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 +2734,7 @@ 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 +2815,7 @@ 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 +2837,14 @@ 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 +2856,7 @@ 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 +2864,7 @@ 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 +2884,7 @@ 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 +2899,25 @@ 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;
}
@@ -3360,7 +3360,7 @@ 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;
@@ -3806,7 +3806,7 @@ 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/include/linux/libata.h b/include/linux/libata.h
index ceee1fc42c6..bb2d916bce4 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -156,15 +156,15 @@ enum {
ATA_SHIFT_PIO = 11,
};
-enum pio_task_states {
- PIO_ST_UNKNOWN,
- PIO_ST_IDLE,
- PIO_ST_POLL,
- PIO_ST_TMOUT,
- PIO_ST,
- PIO_ST_LAST,
- PIO_ST_LAST_POLL,
- PIO_ST_ERR,
+enum hsm_task_states {
+ HSM_ST_UNKNOWN,
+ HSM_ST_IDLE,
+ HSM_ST_POLL,
+ HSM_ST_TMOUT,
+ HSM_ST,
+ HSM_ST_LAST,
+ HSM_ST_LAST_POLL,
+ HSM_ST_ERR,
};
/* forward declarations */
@@ -319,7 +319,7 @@ struct ata_port {
struct work_struct packet_task;
struct work_struct pio_task;
- unsigned int pio_task_state;
+ unsigned int hsm_task_state;
unsigned long pio_task_timeout;
void *private_data;