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path: root/drivers/ide/ide-taskfile.c
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Diffstat (limited to 'drivers/ide/ide-taskfile.c')
-rw-r--r--drivers/ide/ide-taskfile.c126
1 files changed, 64 insertions, 62 deletions
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index 75b85a8cd2d..cc8633cbe13 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -19,8 +19,8 @@
#include <linux/hdreg.h>
#include <linux/ide.h>
#include <linux/scatterlist.h>
+#include <linux/uaccess.h>
-#include <asm/uaccess.h>
#include <asm/io.h>
void ide_tf_readback(ide_drive_t *drive, struct ide_cmd *cmd)
@@ -53,7 +53,7 @@ void ide_tf_dump(const char *s, struct ide_cmd *cmd)
#endif
}
-int taskfile_lib_get_identify (ide_drive_t *drive, u8 *buf)
+int taskfile_lib_get_identify(ide_drive_t *drive, u8 *buf)
{
struct ide_cmd cmd;
@@ -86,7 +86,7 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *orig_cmd)
if (orig_cmd->protocol == ATA_PROT_PIO &&
(orig_cmd->tf_flags & IDE_TFLAG_MULTI_PIO) &&
drive->mult_count == 0) {
- printk(KERN_ERR "%s: multimode not set!\n", drive->name);
+ pr_err("%s: multimode not set!\n", drive->name);
return ide_stopped;
}
@@ -214,7 +214,7 @@ static u8 wait_drive_not_busy(ide_drive_t *drive)
}
if (stat & ATA_BUSY)
- printk(KERN_ERR "%s: drive still BUSY!\n", drive->name);
+ pr_err("%s: drive still BUSY!\n", drive->name);
return stat;
}
@@ -225,8 +225,8 @@ void ide_pio_bytes(ide_drive_t *drive, struct ide_cmd *cmd,
ide_hwif_t *hwif = drive->hwif;
struct scatterlist *sg = hwif->sg_table;
struct scatterlist *cursg = cmd->cursg;
+ unsigned long uninitialized_var(flags);
struct page *page;
- unsigned long flags;
unsigned int offset;
u8 *buf;
@@ -236,6 +236,7 @@ void ide_pio_bytes(ide_drive_t *drive, struct ide_cmd *cmd,
while (len) {
unsigned nr_bytes = min(len, cursg->length - cmd->cursg_ofs);
+ int page_is_high;
if (nr_bytes > PAGE_SIZE)
nr_bytes = PAGE_SIZE;
@@ -247,7 +248,8 @@ void ide_pio_bytes(ide_drive_t *drive, struct ide_cmd *cmd,
page = nth_page(page, (offset >> PAGE_SHIFT));
offset %= PAGE_SIZE;
- if (PageHighMem(page))
+ page_is_high = PageHighMem(page);
+ if (page_is_high)
local_irq_save(flags);
buf = kmap_atomic(page, KM_BIO_SRC_IRQ) + offset;
@@ -268,7 +270,7 @@ void ide_pio_bytes(ide_drive_t *drive, struct ide_cmd *cmd,
kunmap_atomic(buf, KM_BIO_SRC_IRQ);
- if (PageHighMem(page))
+ if (page_is_high)
local_irq_restore(flags);
len -= nr_bytes;
@@ -322,10 +324,17 @@ static void ide_error_cmd(ide_drive_t *drive, struct ide_cmd *cmd)
void ide_finish_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat)
{
struct request *rq = drive->hwif->rq;
- u8 err = ide_read_error(drive);
+ u8 err = ide_read_error(drive), nsect = cmd->tf.nsect;
+ u8 set_xfer = !!(cmd->tf_flags & IDE_TFLAG_SET_XFER);
ide_complete_cmd(drive, cmd, stat, err);
rq->errors = err;
+
+ if (err == 0 && set_xfer) {
+ ide_set_xfer_rate(drive, nsect);
+ ide_driveid_update(drive);
+ }
+
ide_complete_rq(drive, err ? -EIO : 0, blk_rq_bytes(rq));
}
@@ -398,8 +407,7 @@ static ide_startstop_t pre_task_out_intr(ide_drive_t *drive,
if (ide_wait_stat(&startstop, drive, ATA_DRQ,
drive->bad_wstat, WAIT_DRQ)) {
- printk(KERN_ERR "%s: no DRQ after issuing %sWRITE%s\n",
- drive->name,
+ pr_err("%s: no DRQ after issuing %sWRITE%s\n", drive->name,
(cmd->tf_flags & IDE_TFLAG_MULTI_PIO) ? "MULT" : "",
(drive->dev_flags & IDE_DFLAG_LBA48) ? "_EXT" : "");
return startstop;
@@ -449,7 +457,6 @@ put_req:
blk_put_request(rq);
return error;
}
-
EXPORT_SYMBOL(ide_raw_taskfile);
int ide_no_data_taskfile(ide_drive_t *drive, struct ide_cmd *cmd)
@@ -475,10 +482,9 @@ int ide_taskfile_ioctl(ide_drive_t *drive, unsigned long arg)
u16 nsect = 0;
char __user *buf = (char __user *)arg;
-// printk("IDE Taskfile ...\n");
-
req_task = kzalloc(tasksize, GFP_KERNEL);
- if (req_task == NULL) return -ENOMEM;
+ if (req_task == NULL)
+ return -ENOMEM;
if (copy_from_user(req_task, buf, tasksize)) {
kfree(req_task);
return -EFAULT;
@@ -486,7 +492,7 @@ int ide_taskfile_ioctl(ide_drive_t *drive, unsigned long arg)
taskout = req_task->out_size;
taskin = req_task->in_size;
-
+
if (taskin > 65536 || taskout > 65536) {
err = -EINVAL;
goto abort;
@@ -576,51 +582,49 @@ int ide_taskfile_ioctl(ide_drive_t *drive, unsigned long arg)
cmd.protocol = ATA_PROT_DMA;
switch (req_task->data_phase) {
- case TASKFILE_MULTI_OUT:
- if (!drive->mult_count) {
- /* (hs): give up if multcount is not set */
- printk(KERN_ERR "%s: %s Multimode Write " \
- "multcount is not set\n",
- drive->name, __func__);
- err = -EPERM;
- goto abort;
- }
- cmd.tf_flags |= IDE_TFLAG_MULTI_PIO;
- /* fall through */
- case TASKFILE_OUT:
- cmd.protocol = ATA_PROT_PIO;
- /* fall through */
- case TASKFILE_OUT_DMAQ:
- case TASKFILE_OUT_DMA:
- cmd.tf_flags |= IDE_TFLAG_WRITE;
- nsect = taskout / SECTOR_SIZE;
- data_buf = outbuf;
- break;
- case TASKFILE_MULTI_IN:
- if (!drive->mult_count) {
- /* (hs): give up if multcount is not set */
- printk(KERN_ERR "%s: %s Multimode Read failure " \
- "multcount is not set\n",
- drive->name, __func__);
- err = -EPERM;
- goto abort;
- }
- cmd.tf_flags |= IDE_TFLAG_MULTI_PIO;
- /* fall through */
- case TASKFILE_IN:
- cmd.protocol = ATA_PROT_PIO;
- /* fall through */
- case TASKFILE_IN_DMAQ:
- case TASKFILE_IN_DMA:
- nsect = taskin / SECTOR_SIZE;
- data_buf = inbuf;
- break;
- case TASKFILE_NO_DATA:
- cmd.protocol = ATA_PROT_NODATA;
- break;
- default:
- err = -EFAULT;
+ case TASKFILE_MULTI_OUT:
+ if (!drive->mult_count) {
+ /* (hs): give up if multcount is not set */
+ pr_err("%s: %s Multimode Write multcount is not set\n",
+ drive->name, __func__);
+ err = -EPERM;
+ goto abort;
+ }
+ cmd.tf_flags |= IDE_TFLAG_MULTI_PIO;
+ /* fall through */
+ case TASKFILE_OUT:
+ cmd.protocol = ATA_PROT_PIO;
+ /* fall through */
+ case TASKFILE_OUT_DMAQ:
+ case TASKFILE_OUT_DMA:
+ cmd.tf_flags |= IDE_TFLAG_WRITE;
+ nsect = taskout / SECTOR_SIZE;
+ data_buf = outbuf;
+ break;
+ case TASKFILE_MULTI_IN:
+ if (!drive->mult_count) {
+ /* (hs): give up if multcount is not set */
+ pr_err("%s: %s Multimode Read multcount is not set\n",
+ drive->name, __func__);
+ err = -EPERM;
goto abort;
+ }
+ cmd.tf_flags |= IDE_TFLAG_MULTI_PIO;
+ /* fall through */
+ case TASKFILE_IN:
+ cmd.protocol = ATA_PROT_PIO;
+ /* fall through */
+ case TASKFILE_IN_DMAQ:
+ case TASKFILE_IN_DMA:
+ nsect = taskin / SECTOR_SIZE;
+ data_buf = inbuf;
+ break;
+ case TASKFILE_NO_DATA:
+ cmd.protocol = ATA_PROT_NODATA;
+ break;
+ default:
+ err = -EFAULT;
+ goto abort;
}
if (req_task->req_cmd == IDE_DRIVE_TASK_NO_DATA)
@@ -629,7 +633,7 @@ int ide_taskfile_ioctl(ide_drive_t *drive, unsigned long arg)
nsect = (cmd.hob.nsect << 8) | cmd.tf.nsect;
if (!nsect) {
- printk(KERN_ERR "%s: in/out command without data\n",
+ pr_err("%s: in/out command without data\n",
drive->name);
err = -EFAULT;
goto abort;
@@ -671,8 +675,6 @@ abort:
kfree(outbuf);
kfree(inbuf);
-// printk("IDE Taskfile ioctl ended. rc = %i\n", err);
-
return err;
}
#endif
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-11-04 09:00:43 +0000