-/*
+/*
* File...........: linux/drivers/s390/block/dasd_int.h
* Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
- * Horst Hummel <Horst.Hummel@de.ibm.com>
+ * Horst Hummel <Horst.Hummel@de.ibm.com>
* Martin Schwidefsky <schwidefsky@de.ibm.com>
* Bugreports.to..: <Linux390@de.ibm.com>
* (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000
#include <linux/module.h>
#include <linux/wait.h>
#include <linux/blkdev.h>
+#include <linux/devfs_fs_kernel.h>
#include <linux/genhd.h>
#include <linux/hdreg.h>
#include <linux/interrupt.h>
*/
struct dasd_device;
+typedef int (*dasd_ioctl_fn_t) (struct block_device *bdev, int no, long args);
+
+struct dasd_ioctl {
+ struct list_head list;
+ struct module *owner;
+ int no;
+ dasd_ioctl_fn_t handler;
+};
+
typedef enum {
dasd_era_fatal = -1, /* no chance to recover */
dasd_era_none = 0, /* don't recover, everything alright */
void *callback_data;
};
-/*
+/*
* dasd_ccw_req -> status can be:
*/
#define DASD_CQR_FILLED 0x00 /* request is ready to be processed */
/*
* Error recovery functions. examine_error() returns a value that
* indicates what to do for an error condition. If examine_error()
- * returns 'dasd_era_recover' erp_action() is called to create a
+ * returns 'dasd_era_recover' erp_action() is called to create a
* special error recovery ccw. erp_postaction() is called after
* an error recovery ccw has finished its execution. dump_sense
* is called for every error condition to print the sense data
/* i/o control functions. */
int (*fill_geometry) (struct dasd_device *, struct hd_geometry *);
int (*fill_info) (struct dasd_device *, struct dasd_information2_t *);
- int (*ioctl) (struct dasd_device *, unsigned int, void __user *);
};
extern struct dasd_discipline *dasd_diag_discipline_pointer;
-/*
- * Unique identifier for dasd device.
- */
-struct dasd_uid {
- __u8 alias;
- char vendor[4];
- char serial[15];
- __u16 ssid;
- __u8 unit_addr;
-};
-
-/*
- * Notification numbers for extended error reporting notifications:
- * The DASD_EER_DISABLE notification is sent before a dasd_device (and it's
- * eer pointer) is freed. The error reporting module needs to do all necessary
- * cleanup steps.
- * The DASD_EER_TRIGGER notification sends the actual error reports (triggers).
- */
-#define DASD_EER_DISABLE 0
-#define DASD_EER_TRIGGER 1
-
-/* Trigger IDs for extended error reporting DASD_EER_TRIGGER notification */
-#define DASD_EER_FATALERROR 1
-#define DASD_EER_NOPATH 2
-#define DASD_EER_STATECHANGE 3
-#define DASD_EER_PPRCSUSPEND 4
-
struct dasd_device {
/* Block device stuff. */
struct gendisk *gdp;
spinlock_t request_queue_lock;
struct block_device *bdev;
unsigned int devindex;
- unsigned long blocks; /* size of volume in blocks */
- unsigned int bp_block; /* bytes per block */
- unsigned int s2b_shift; /* log2 (bp_block/512) */
- unsigned long flags; /* per device flags */
- unsigned short features; /* copy of devmap-features (read-only!) */
-
- /* extended error reporting stuff (eer) */
- struct dasd_ccw_req *eer_cqr;
+ unsigned long blocks; /* size of volume in blocks */
+ unsigned int bp_block; /* bytes per block */
+ unsigned int s2b_shift; /* log2 (bp_block/512) */
+ unsigned long flags; /* per device flags */
+ unsigned short features; /* copy of devmap-features (read-only!) */
/* Device discipline stuff. */
struct dasd_discipline *discipline;
/* per device flags */
#define DASD_FLAG_DSC_ERROR 2 /* return -EIO when disconnected */
#define DASD_FLAG_OFFLINE 3 /* device is in offline processing */
-#define DASD_FLAG_EER_SNSS 4 /* A SNSS is required */
-#define DASD_FLAG_EER_IN_USE 5 /* A SNSS request is running */
void dasd_put_device_wake(struct dasd_device *);
int dasd_generic_set_online(struct ccw_device *, struct dasd_discipline *);
int dasd_generic_set_offline (struct ccw_device *cdev);
int dasd_generic_notify(struct ccw_device *, int);
+void dasd_generic_auto_online (struct ccw_driver *);
/* externals in dasd_devmap.c */
extern int dasd_max_devindex;
extern int dasd_probeonly;
extern int dasd_autodetect;
-extern int dasd_nopav;
int dasd_devmap_init(void);
void dasd_devmap_exit(void);
struct dasd_device *dasd_create_device(struct ccw_device *);
void dasd_delete_device(struct dasd_device *);
-int dasd_get_uid(struct ccw_device *, struct dasd_uid *);
-int dasd_set_uid(struct ccw_device *, struct dasd_uid *);
int dasd_get_feature(struct ccw_device *, int);
int dasd_set_feature(struct ccw_device *, int, int);
void dasd_destroy_partitions(struct dasd_device *);
/* externals in dasd_ioctl.c */
+int dasd_ioctl_init(void);
+void dasd_ioctl_exit(void);
+int dasd_ioctl_no_register(struct module *, int, dasd_ioctl_fn_t);
+int dasd_ioctl_no_unregister(struct module *, int, dasd_ioctl_fn_t);
int dasd_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
long dasd_compat_ioctl(struct file *, unsigned int, unsigned long);
dasd_era_t dasd_9343_erp_examine(struct dasd_ccw_req *, struct irb *);
struct dasd_ccw_req *dasd_9343_erp_action(struct dasd_ccw_req *);
-/* externals in dasd_eer.c */
-#ifdef CONFIG_DASD_EER
-int dasd_eer_init(void);
-void dasd_eer_exit(void);
-int dasd_eer_enable(struct dasd_device *);
-void dasd_eer_disable(struct dasd_device *);
-void dasd_eer_write(struct dasd_device *, struct dasd_ccw_req *cqr,
- unsigned int id);
-void dasd_eer_snss(struct dasd_device *);
-
-static inline int dasd_eer_enabled(struct dasd_device *device)
-{
- return device->eer_cqr != NULL;
-}
-#else
-#define dasd_eer_init() (0)
-#define dasd_eer_exit() do { } while (0)
-#define dasd_eer_enable(d) (0)
-#define dasd_eer_disable(d) do { } while (0)
-#define dasd_eer_write(d,c,i) do { } while (0)
-#define dasd_eer_snss(d) do { } while (0)
-#define dasd_eer_enabled(d) (0)
-#endif /* CONFIG_DASD_ERR */
-
#endif /* __KERNEL__ */
#endif /* DASD_H */
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only. This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 4
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -4
+ * c-argdecl-indent: 4
+ * c-label-offset: -4
+ * c-continued-statement-offset: 4
+ * c-continued-brace-offset: 0
+ * indent-tabs-mode: 1
+ * tab-width: 8
+ * End:
+ */
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