patch-2.2.17 linux/drivers/s390/block/dasd_types.h

• Lines: 360
• Date: Thu Jan 1 01:00:00 1970
• Orig file: v2.2.16/drivers/s390/block/dasd_types.h
• Orig date: Mon Sep 4 18:37:42 2000

diff -u --recursive --new-file v2.2.16/drivers/s390/block/dasd_types.h linux/drivers/s390/block/dasd_types.h
@@ -1,359 +0,0 @@
-
-/*
- * File...........: linux/drivers/s390/block/dasd_types.h
- * Author.........: Holger Smolinski <Holger.Smolinski@de.ibm.com>
- * Created........: 08/31/1999
- * Last Modified..: 09/29/1999
- * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000
-
- * List of Changes:
- - Initial Release as of 09/29/1999
-
- * Description
-
- * Restrictions
-
- * Known Bugs
-
- * Todo-List
-
- */
-
-#ifndef DASD_TYPES_H
-#define DASD_TYPES_H
-
-#include <linux/dasd.h>
-
-#include <linux/blkdev.h>
-
-#include <linux/hdreg.h>
-
-#include <asm/irq.h>
-
-#include "dasd_mdsk.h"
-
-#define ACS(where,from,to) if (atomic_compare_and_swap (from, to, &where)) {\
-	PRINT_WARN ("%s/%d atomic %s from %d(%s) to %d(%s) failed, was %d\n",\
-		    __FILE__,__LINE__,#where,from,#from,to,#to,\
-                    atomic_read (&where));\
-        atomic_set(&where,to);}
-
-#define CCW_DEFINE_EXTENT 0x63
-#define CCW_LOCATE_RECORD 0x43
-#define CCW_READ_DEVICE_CHARACTERISTICS 0x64
-
-typedef
-enum {
-	dasd_none = -1,
-#ifdef CONFIG_DASD_ECKD
-	dasd_eckd,
-#endif				/* CONFIG_DASD_ECKD */
-#ifdef CONFIG_DASD_FBA
-	dasd_fba,
-#endif				/* CONFIG_DASD_FBA */
-#ifdef CONFIG_DASD_MDSK
-	dasd_mdsk,
-#endif				/* CONFIG_DASD_MDSK */
-#ifdef CONFIG_DASD_CKD
-	dasd_ckd,
-#endif				/* CONFIG_DASD_CKD */
-	dasd_end
-} dasd_type_t;
-
-typedef
-struct {
-	union {
-		__u8 c;
-		struct {
-			unsigned char reserved:1;
-			unsigned char overrunnable:1;
-			unsigned char burst_byte:1;
-			unsigned char data_chain:1;
-			unsigned char zeros:4;
-		} __attribute__ ((packed)) bits;
-	} __attribute__ ((packed)) mode;
-	union {
-		__u8 c;
-		struct {
-			unsigned char zero0:1;
-			unsigned char removable:1;
-			unsigned char shared:1;
-			unsigned char zero1:1;
-			unsigned char mam:1;
-			unsigned char zeros:3;
-		} __attribute__ ((packed)) bits;
-	} __attribute__ ((packed)) features;
-	__u8 dev_class;
-	__u8 unit_type;
-	__u16 blk_size;
-	__u32 blk_per_cycl;
-	__u32 blk_per_bound;
-	__u32 blk_bdsa;
-	__u32 reserved0;
-	__u16 reserved1;
-	__u16 blk_ce;
-	__u32 reserved2;
-	__u16 reserved3;
-} __attribute__ ((packed, aligned (32))) 
-
-dasd_fba_characteristics_t;
-
-typedef
-struct {
-	__u16 cu_type;
-	struct {
-		unsigned char support:2;
-		unsigned char async:1;
-		unsigned char reserved:1;
-		unsigned char cache_info:1;
-		unsigned char model:3;
-	} __attribute__ ((packed)) cu_model;
-	__u16 dev_type;
-	__u8 dev_model;
-	struct {
-		unsigned char mult_burst:1;
-		unsigned char RT_in_LR:1;
-		unsigned char reserved1:1;
-		unsigned char RD_IN_LR:1;
-		unsigned char reserved2:4;
-		unsigned char reserved3:8;
-		unsigned char defect_wr:1;
-		unsigned char reserved4:2;
-		unsigned char striping:1;
-		unsigned char reserved5:4;
-		unsigned char cfw:1;
-		unsigned char reserved6:2;
-		unsigned char cache:1;
-		unsigned char dual_copy:1;
-		unsigned char dfw:1;
-		unsigned char reset_alleg:1;
-		unsigned char sense_down:1;
-	} __attribute__ ((packed)) facilities;
-	__u8 dev_class;
-	__u8 unit_type;
-	__u16 no_cyl;
-	__u16 trk_per_cyl;
-	__u8 sec_per_trk;
-	__u8 byte_per_track[3];
-	__u16 home_bytes;
-	__u8 formula;
-	union {
-		struct {
-			__u8 f1;
-			__u16 f2;
-			__u16 f3;
-		} __attribute__ ((packed)) f_0x01;
-		struct {
-			__u8 f1;
-			__u8 f2;
-			__u8 f3;
-			__u8 f4;
-			__u8 f5;
-		} __attribute__ ((packed)) f_0x02;
-	} __attribute__ ((packed)) factors;
-	__u16 first_alt_trk;
-	__u16 no_alt_trk;
-	__u16 first_dia_trk;
-	__u16 no_dia_trk;
-	__u16 first_sup_trk;
-	__u16 no_sup_trk;
-	__u8 MDR_ID;
-	__u8 OBR_ID;
-	__u8 director;
-	__u8 rd_trk_set;
-	__u16 max_rec_zero;
-	__u8 reserved1;
-	__u8 RWANY_in_LR;
-	__u8 factor6;
-	__u8 factor7;
-	__u8 factor8;
-	__u8 reserved2[3];
-	__u8 reserved3[10];
-} __attribute__ ((packed, aligned (32))) 
-
-dasd_eckd_characteristics_t;
-
-typedef struct {
-	u16 dev_nr;
-	u16 rdc_len;
-	u8 vdev_class;
-	u8 vdev_type;
-	u8 vdev_status;
-	u8 vdev_flags;
-	u8 rdev_class;
-	u8 rdev_type;
-	u8 rdev_model;
-	u8 rdev_features;
-} __attribute__ ((packed, aligned (32)))
-
-dasd_mdsk_characteristics_t;
-
-/* eckd count area */
-typedef struct {
-	__u16 cyl;
-	__u16 head;
-	__u8 record;
-	__u8 kl;
-	__u16 dl;
-} __attribute__ ((packed))
-
-eckd_count_t;
-
-#ifdef CONFIG_DASD_CKD
-struct dasd_ckd_characteristics {
-	char info[64];
-};
-
-#endif				/* CONFIG_DASD_CKD */
-
-typedef
-union {
-	char __attribute__ ((aligned (32))) bytes[64];
-#ifdef CONFIG_DASD_FBA
-	dasd_fba_characteristics_t fba;
-#endif				/* CONFIG_DASD_FBA */
-#ifdef CONFIG_DASD_CKD
-	struct dasd_ckd_characteristics ckd;
-#endif				/* CONFIG_DASD_CKD */
-#ifdef CONFIG_DASD_ECKD
-	dasd_eckd_characteristics_t eckd;
-#endif				/* CONFIG_DASD_ECKD */
-#ifdef CONFIG_DASD_MDSK
-	dasd_mdsk_characteristics_t mdsk;
-#endif				/* CONFIG_DASD_ECKD */
-} __attribute__ ((aligned (32))) 
-
-dasd_characteristics_t;
-
-#define CQR_STATUS_EMPTY  0x00
-#define CQR_STATUS_FILLED 0x01
-#define CQR_STATUS_QUEUED 0x02
-#define CQR_STATUS_IN_IO  0x04
-#define CQR_STATUS_DONE   0x08
-#define CQR_STATUS_ERROR  0x10
-#define CQR_STATUS_ERP_PEND  0x20
-#define CQR_STATUS_ERP_ACTIVE  0x40
-#define CQR_STATUS_FAILED 0x80
-
-#define CQR_FLAGS_SLEEP   0x01
-#define CQR_FLAGS_WAIT    0x02
-#define CQR_FLAGS_NOLOCK  0x04
-#define CQR_FLAGS_NORETRY 0x08
-
-typedef
-struct cqr_t {
-	unsigned int    magic;    /* magic number should be "DASD" */
-	atomic_t status;	/* current status of request */
-	unsigned short retries; /* counter for retry in error case */
-	unsigned short cplength;/* Length of channel program  (CP) */
-	unsigned short devindex;/* device number */
-	unsigned short flags;    /* Flags for execution */
-	
-	void * data;		/* additional data area for CP */
-	ccw1_t *cpaddr;		/* Address of CP */
-	struct request *req;	/* backpointer to struct request */
-	struct cqr_t *next;     /* forward chain in chanq */
-	struct cqr_t *int4cqr;  /* which cqr ist the nect PCI for? */
-	unsigned long long buildclk;
-	unsigned long long startclk;
-	unsigned long long stopclk;
-	unsigned long long endclk;
-	devstat_t *dstat;	/* savearea for devstat */
-	spinlock_t lock;
-	int options;
-} __attribute__ ((packed)) 
-
-cqr_t;
-
-typedef
-struct {
-	unsigned long int kbytes;
-	unsigned int bp_sector;
-	unsigned int bp_block;
-	unsigned int blocks;
-	unsigned int s2b_shift;
-	unsigned int label_block;
-} dasd_sizes_t;
-
-#define DASD_CHANQ_ACTIVE 0x01
-#define DASD_CHANQ_BUSY 0x02
-#define DASD_REQUEST_Q_BROKEN 0x04
-
-typedef
-struct dasd_chanq_t {
-	volatile cqr_t *head;
-	volatile cqr_t *tail;
-	spinlock_t q_lock;	/* lock for queue operations */
-	spinlock_t f_lock;	/* lock for flag operations */
-	int queued_requests;
-	atomic_t flags;
-	atomic_t dirty_requests;
-	struct dasd_chanq_t *next_q;	/* pointer to next queue */
-} __attribute__ ((packed, aligned (16))) 
-
-dasd_chanq_t;
-
-#define DASD_INFO_STATUS_UNKNOWN 0x00	/* nothing known about DASD */
-#define DASD_INFO_STATUS_DETECTED 0x01	/* DASD identified as DASD, irq taken */
-#define DASD_INFO_STATUS_ANALYSED 0x02	/* first block read, filled sizes */
-#define DASD_INFO_STATUS_FORMATTED 0x04		/* identified valid format */
-#define DASD_INFO_STATUS_PARTITIONED 0x08	/* identified partitions */
-
-typedef
-struct dasd_information_t {
-	devstat_t dev_status;
-	dasd_characteristics_t *rdc_data;
-	dasd_volume_label_t *label;
-	dasd_type_t type;
-	dev_info_t info;
-	dasd_sizes_t sizes;
-	dasd_chanq_t queue;
-	int open_count;
-	spinlock_t lock;
-	struct semaphore sem;
-	atomic_t status;
-	int irq;
-	mdsk_setup_data_t *mdsk_setup;
-	struct proc_dir_entry *proc_device;
-	union {
-		struct {
-			eckd_count_t count_data;
-		} eckd;
-		struct {
-			char dummy;
-		} fba;
-		struct {
-			mdsk_init_io_t iib;
-			mdsk_rw_io_t iob;
-			mdsk_setup_data_t setup;
-			long *label;
-		} mdsk;
-		struct {
-			char dummy;
-		} ckd;
-	} private;
-	struct wait_queue *wait_q;
-} dasd_information_t;
-
-extern dasd_information_t *dasd_info[];
-
-#include "dasd_erp.h"
-
-typedef
-struct {
-	int (*ck_devinfo) (dev_info_t *);
-	cqr_t *(*get_req_ccw) (int, struct request *);
-	int (*ck_characteristics) (dasd_characteristics_t *);
-	cqr_t *(*fill_sizes_first) (int);
-	int (*fill_sizes_last) (int);
-	int (*dasd_format) (int, format_data_t *);
-	void (*fill_geometry) (int, struct hd_geometry *);
-	 dasd_era_t (*erp_examine) (cqr_t *, devstat_t *);
-} dasd_operations_t;
-
-extern dasd_operations_t *dasd_disciplines[];
-
-/* Prototypes */
-int dasd_start_IO (cqr_t * cqr);
-
-#endif				/* DASD_TYPES_H */