ide: /proc/ide/hd*/settings rework
* Add struct ide_devset, S_* flags, *DEVSET() & ide*_devset_*() macros.
* Add 'const struct ide_devset **settings' to ide_driver_t.
* Use 'const struct ide_devset **settings' in ide_drive_t instead of
'struct ide_settings_s *settings'. Then convert core code and device
drivers to use struct ide_devset and co.:
- device settings are no longer allocated dynamically for each device
but instead there is an unique struct ide_devset instance per setting
- device driver keeps the pointer to the table of pointers to its
settings in ide_driver_t.settings
- generic settings are kept in ide_generic_setting[]
- ide_proc_[un]register_driver(), ide_find_setting_by_name(),
ide_{read,write}_setting() and proc_ide_{read,write}_settings()
are updated accordingly
- ide*_add_settings() are removed
* Remove no longer used __ide_add_setting(), ide_add_setting(),
__ide_remove_setting() and auto_remove_settings().
* Remove no longer used TYPE_*, SETTING_*, ide_procset_t
and ide_settings_t.
* ->keep_settings, ->using_dma, ->unmask, ->noflush, ->dsc_overlap,
->nice1, ->addressing, ->wcache and ->nowerr ide_drive_t fields
can now be bitfield flags.
While at it:
* Rename ide_find_setting_by_name() to ide_find_setting().
* Rename write_wcache() to set_wcache().
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 7a15907..2e43ae1 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -599,6 +599,8 @@
rq->special = task;
}
+ide_devset_get(multcount, mult_count);
+
/*
* This is tightly woven into the driver->do_special can not touch.
* DON'T do it again until a total personality rewrite is committed.
@@ -625,6 +627,8 @@
return (drive->mult_count == arg) ? 0 : -EIO;
}
+ide_devset_get(nowerr, nowerr);
+
static int set_nowerr(ide_drive_t *drive, int arg)
{
if (arg < 0 || arg > 1)
@@ -673,7 +677,9 @@
blk_queue_ordered(drive->queue, ordered, prep_fn);
}
-static int write_cache(ide_drive_t *drive, int arg)
+ide_devset_get(wcache, wcache);
+
+static int set_wcache(ide_drive_t *drive, int arg)
{
ide_task_t args;
int err = 1;
@@ -710,6 +716,8 @@
return ide_no_data_taskfile(drive, &args);
}
+ide_devset_get(acoustic, acoustic);
+
static int set_acoustic(ide_drive_t *drive, int arg)
{
ide_task_t args;
@@ -727,6 +735,8 @@
return 0;
}
+ide_devset_get(lba_addressing, addressing);
+
/*
* drive->addressing:
* 0: 28-bit
@@ -750,33 +760,33 @@
}
#ifdef CONFIG_IDE_PROC_FS
-static void idedisk_add_settings(ide_drive_t *drive)
-{
- ide_add_setting(drive, "bios_cyl", SETTING_RW, TYPE_INT, 0, 65535, 1, 1,
- &drive->bios_cyl, NULL);
- ide_add_setting(drive, "bios_head", SETTING_RW, TYPE_BYTE, 0, 255, 1, 1,
- &drive->bios_head, NULL);
- ide_add_setting(drive, "bios_sect", SETTING_RW, TYPE_BYTE, 0, 63, 1, 1,
- &drive->bios_sect, NULL);
- ide_add_setting(drive, "address", SETTING_RW, TYPE_BYTE, 0, 2, 1, 1,
- &drive->addressing, set_lba_addressing);
- ide_add_setting(drive, "multcount", SETTING_RW, TYPE_BYTE, 0, 16, 1, 1,
- &drive->mult_count, set_multcount);
- ide_add_setting(drive, "nowerr", SETTING_RW, TYPE_BYTE, 0, 1, 1, 1,
- &drive->nowerr, set_nowerr);
- ide_add_setting(drive, "lun", SETTING_RW, TYPE_INT, 0, 7, 1, 1,
- &drive->lun, NULL);
- ide_add_setting(drive, "wcache", SETTING_RW, TYPE_BYTE, 0, 1, 1, 1,
- &drive->wcache, write_cache);
- ide_add_setting(drive, "acoustic", SETTING_RW, TYPE_BYTE, 0, 254, 1, 1,
- &drive->acoustic, set_acoustic);
- ide_add_setting(drive, "failures", SETTING_RW, TYPE_INT, 0, 65535, 1, 1,
- &drive->failures, NULL);
- ide_add_setting(drive, "max_failures", SETTING_RW, TYPE_INT, 0, 65535,
- 1, 1, &drive->max_failures, NULL);
-}
-#else
-static inline void idedisk_add_settings(ide_drive_t *drive) { ; }
+ide_devset_rw_nolock(acoustic, 0, 254, acoustic);
+ide_devset_rw_nolock(address, 0, 2, lba_addressing);
+ide_devset_rw_nolock(multcount, 0, 16, multcount);
+ide_devset_rw_nolock(nowerr, 0, 1, nowerr);
+ide_devset_rw_nolock(wcache, 0, 1, wcache);
+
+ide_devset_rw(bios_cyl, 0, 65535, bios_cyl);
+ide_devset_rw(bios_head, 0, 255, bios_head);
+ide_devset_rw(bios_sect, 0, 63, bios_sect);
+ide_devset_rw(failures, 0, 65535, failures);
+ide_devset_rw(lun, 0, 7, lun);
+ide_devset_rw(max_failures, 0, 65535, max_failures);
+
+static const struct ide_devset *idedisk_settings[] = {
+ &ide_devset_acoustic,
+ &ide_devset_address,
+ &ide_devset_bios_cyl,
+ &ide_devset_bios_head,
+ &ide_devset_bios_sect,
+ &ide_devset_failures,
+ &ide_devset_lun,
+ &ide_devset_max_failures,
+ &ide_devset_multcount,
+ &ide_devset_nowerr,
+ &ide_devset_wcache,
+ NULL
+};
#endif
static void idedisk_setup(ide_drive_t *drive)
@@ -788,7 +798,6 @@
unsigned long long capacity;
ide_proc_register_driver(drive, idkp->driver);
- idedisk_add_settings(drive);
if (drive->id_read == 0)
return;
@@ -880,7 +889,7 @@
if ((id[ATA_ID_CSFO] & 1) || ata_id_wcache_enabled(id))
drive->wcache = 1;
- write_cache(drive, 1);
+ set_wcache(drive, 1);
}
static void ide_cacheflush_p(ide_drive_t *drive)
@@ -976,6 +985,7 @@
.error = __ide_error,
#ifdef CONFIG_IDE_PROC_FS
.proc = idedisk_proc,
+ .settings = idedisk_settings,
#endif
};
@@ -1056,19 +1066,18 @@
struct block_device *bdev = inode->i_bdev;
struct ide_disk_obj *idkp = ide_disk_g(bdev->bd_disk);
ide_drive_t *drive = idkp->drive;
- int err, (*setfunc)(ide_drive_t *, int);
- u8 *val;
+ int err, (*getfunc)(ide_drive_t *), (*setfunc)(ide_drive_t *, int);
switch (cmd) {
- case HDIO_GET_ADDRESS: val = &drive->addressing; goto read_val;
- case HDIO_GET_MULTCOUNT: val = &drive->mult_count; goto read_val;
- case HDIO_GET_NOWERR: val = &drive->nowerr; goto read_val;
- case HDIO_GET_WCACHE: val = &drive->wcache; goto read_val;
- case HDIO_GET_ACOUSTIC: val = &drive->acoustic; goto read_val;
+ case HDIO_GET_ADDRESS: getfunc = get_lba_addressing; goto read_val;
+ case HDIO_GET_MULTCOUNT: getfunc = get_multcount; goto read_val;
+ case HDIO_GET_NOWERR: getfunc = get_nowerr; goto read_val;
+ case HDIO_GET_WCACHE: getfunc = get_wcache; goto read_val;
+ case HDIO_GET_ACOUSTIC: getfunc = get_acoustic; goto read_val;
case HDIO_SET_ADDRESS: setfunc = set_lba_addressing; goto set_val;
case HDIO_SET_MULTCOUNT: setfunc = set_multcount; goto set_val;
case HDIO_SET_NOWERR: setfunc = set_nowerr; goto set_val;
- case HDIO_SET_WCACHE: setfunc = write_cache; goto set_val;
+ case HDIO_SET_WCACHE: setfunc = set_wcache; goto set_val;
case HDIO_SET_ACOUSTIC: setfunc = set_acoustic; goto set_val;
}
@@ -1077,7 +1086,7 @@
read_val:
mutex_lock(&ide_setting_mtx);
spin_lock_irqsave(&ide_lock, flags);
- err = *val;
+ err = getfunc(drive);
spin_unlock_irqrestore(&ide_lock, flags);
mutex_unlock(&ide_setting_mtx);
return err >= 0 ? put_user(err, (long __user *)arg) : err;