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path: root/drivers/scsi/ide-scsi.c
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Diffstat (limited to 'drivers/scsi/ide-scsi.c')
-rw-r--r--drivers/scsi/ide-scsi.c86
1 files changed, 50 insertions, 36 deletions
diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c
index 2e2486b035d..83f062ed908 100644
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -179,8 +179,18 @@ static void idescsi_input_buffers (ide_drive_t *drive, idescsi_pc_t *pc, unsigne
return;
}
count = min(pc->sg->length - pc->b_count, bcount);
- buf = page_address(pc->sg->page) + pc->sg->offset;
- drive->hwif->atapi_input_bytes(drive, buf + pc->b_count, count);
+ if (PageHighMem(pc->sg->page)) {
+ unsigned long flags;
+
+ local_irq_save(flags);
+ buf = kmap_atomic(pc->sg->page, KM_IRQ0) + pc->sg->offset;
+ drive->hwif->atapi_input_bytes(drive, buf + pc->b_count, count);
+ kunmap_atomic(buf - pc->sg->offset, KM_IRQ0);
+ local_irq_restore(flags);
+ } else {
+ buf = page_address(pc->sg->page) + pc->sg->offset;
+ drive->hwif->atapi_input_bytes(drive, buf + pc->b_count, count);
+ }
bcount -= count; pc->b_count += count;
if (pc->b_count == pc->sg->length) {
pc->sg++;
@@ -201,8 +211,18 @@ static void idescsi_output_buffers (ide_drive_t *drive, idescsi_pc_t *pc, unsign
return;
}
count = min(pc->sg->length - pc->b_count, bcount);
- buf = page_address(pc->sg->page) + pc->sg->offset;
- drive->hwif->atapi_output_bytes(drive, buf + pc->b_count, count);
+ if (PageHighMem(pc->sg->page)) {
+ unsigned long flags;
+
+ local_irq_save(flags);
+ buf = kmap_atomic(pc->sg->page, KM_IRQ0) + pc->sg->offset;
+ drive->hwif->atapi_output_bytes(drive, buf + pc->b_count, count);
+ kunmap_atomic(buf - pc->sg->offset, KM_IRQ0);
+ local_irq_restore(flags);
+ } else {
+ buf = page_address(pc->sg->page) + pc->sg->offset;
+ drive->hwif->atapi_output_bytes(drive, buf + pc->b_count, count);
+ }
bcount -= count; pc->b_count += count;
if (pc->b_count == pc->sg->length) {
pc->sg++;
@@ -713,7 +733,6 @@ static void idescsi_add_settings(ide_drive_t *drive)
*/
static void idescsi_setup (ide_drive_t *drive, idescsi_scsi_t *scsi)
{
- DRIVER(drive)->busy++;
if (drive->id && (drive->id->config & 0x0060) == 0x20)
set_bit (IDESCSI_DRQ_INTERRUPT, &scsi->flags);
set_bit(IDESCSI_TRANSFORM, &scsi->transform);
@@ -722,17 +741,16 @@ static void idescsi_setup (ide_drive_t *drive, idescsi_scsi_t *scsi)
set_bit(IDESCSI_LOG_CMD, &scsi->log);
#endif /* IDESCSI_DEBUG_LOG */
idescsi_add_settings(drive);
- DRIVER(drive)->busy--;
}
-static int idescsi_cleanup (ide_drive_t *drive)
+static int ide_scsi_remove(struct device *dev)
{
+ ide_drive_t *drive = to_ide_device(dev);
struct Scsi_Host *scsihost = drive->driver_data;
struct ide_scsi_obj *scsi = scsihost_to_idescsi(scsihost);
struct gendisk *g = scsi->disk;
- if (ide_unregister_subdriver(drive))
- return 1;
+ ide_unregister_subdriver(drive, scsi->driver);
ide_unregister_region(g);
@@ -746,7 +764,7 @@ static int idescsi_cleanup (ide_drive_t *drive)
return 0;
}
-static int idescsi_attach(ide_drive_t *drive);
+static int ide_scsi_probe(struct device *);
#ifdef CONFIG_PROC_FS
static ide_proc_entry_t idescsi_proc[] = {
@@ -757,24 +775,22 @@ static ide_proc_entry_t idescsi_proc[] = {
# define idescsi_proc NULL
#endif
-/*
- * IDE subdriver functions, registered with ide.c
- */
static ide_driver_t idescsi_driver = {
.owner = THIS_MODULE,
- .name = "ide-scsi",
+ .gen_driver = {
+ .name = "ide-scsi",
+ .bus = &ide_bus_type,
+ .probe = ide_scsi_probe,
+ .remove = ide_scsi_remove,
+ },
.version = IDESCSI_VERSION,
.media = ide_scsi,
- .busy = 0,
.supports_dsc_overlap = 0,
.proc = idescsi_proc,
- .attach = idescsi_attach,
- .cleanup = idescsi_cleanup,
.do_request = idescsi_do_request,
.end_request = idescsi_end_request,
.error = idescsi_atapi_error,
.abort = idescsi_atapi_abort,
- .drives = LIST_HEAD_INIT(idescsi_driver.drives),
};
static int idescsi_ide_open(struct inode *inode, struct file *filp)
@@ -821,8 +837,6 @@ static struct block_device_operations idescsi_ops = {
.ioctl = idescsi_ide_ioctl,
};
-static int idescsi_attach(ide_drive_t *drive);
-
static int idescsi_slave_configure(struct scsi_device * sdp)
{
/* Configure detected device */
@@ -1095,8 +1109,9 @@ static struct scsi_host_template idescsi_template = {
.proc_name = "ide-scsi",
};
-static int idescsi_attach(ide_drive_t *drive)
+static int ide_scsi_probe(struct device *dev)
{
+ ide_drive_t *drive = to_ide_device(dev);
idescsi_scsi_t *idescsi;
struct Scsi_Host *host;
struct gendisk *g;
@@ -1112,7 +1127,7 @@ static int idescsi_attach(ide_drive_t *drive)
!drive->present ||
drive->media == ide_disk ||
!(host = scsi_host_alloc(&idescsi_template,sizeof(idescsi_scsi_t))))
- return 1;
+ return -ENODEV;
g = alloc_disk(1 << PARTN_BITS);
if (!g)
@@ -1138,20 +1153,19 @@ static int idescsi_attach(ide_drive_t *drive)
idescsi->host = host;
idescsi->disk = g;
g->private_data = &idescsi->driver;
- err = ide_register_subdriver(drive, &idescsi_driver);
+ ide_register_subdriver(drive, &idescsi_driver);
+ err = 0;
+ idescsi_setup(drive, idescsi);
+ g->fops = &idescsi_ops;
+ ide_register_region(g);
+ err = scsi_add_host(host, &drive->gendev);
if (!err) {
- idescsi_setup (drive, idescsi);
- g->fops = &idescsi_ops;
- ide_register_region(g);
- err = scsi_add_host(host, &drive->gendev);
- if (!err) {
- scsi_scan_host(host);
- return 0;
- }
- /* fall through on error */
- ide_unregister_region(g);
- ide_unregister_subdriver(drive);
+ scsi_scan_host(host);
+ return 0;
}
+ /* fall through on error */
+ ide_unregister_region(g);
+ ide_unregister_subdriver(drive, &idescsi_driver);
put_disk(g);
out_host_put:
@@ -1161,12 +1175,12 @@ out_host_put:
static int __init init_idescsi_module(void)
{
- return ide_register_driver(&idescsi_driver);
+ return driver_register(&idescsi_driver.gen_driver);
}
static void __exit exit_idescsi_module(void)
{
- ide_unregister_driver(&idescsi_driver);
+ driver_unregister(&idescsi_driver.gen_driver);
}
module_init(init_idescsi_module);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-27 03:42:32 +0000