Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[linux-2.6] / drivers / s390 / block / dasd_eckd.h
1 /*
2  * File...........: linux/drivers/s390/block/dasd_eckd.h
3  * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
4  *                  Horst Hummel <Horst.Hummel@de.ibm.com>
5  * Bugreports.to..: <Linux390@de.ibm.com>
6  * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000
7  *
8  */
9
10 #ifndef DASD_ECKD_H
11 #define DASD_ECKD_H
12
13 /*****************************************************************************
14  * SECTION: CCW Definitions
15  ****************************************************************************/
16 #define DASD_ECKD_CCW_WRITE              0x05
17 #define DASD_ECKD_CCW_READ               0x06
18 #define DASD_ECKD_CCW_WRITE_HOME_ADDRESS 0x09
19 #define DASD_ECKD_CCW_READ_HOME_ADDRESS  0x0a
20 #define DASD_ECKD_CCW_WRITE_KD           0x0d
21 #define DASD_ECKD_CCW_READ_KD            0x0e
22 #define DASD_ECKD_CCW_ERASE              0x11
23 #define DASD_ECKD_CCW_READ_COUNT         0x12
24 #define DASD_ECKD_CCW_SLCK               0x14
25 #define DASD_ECKD_CCW_WRITE_RECORD_ZERO  0x15
26 #define DASD_ECKD_CCW_READ_RECORD_ZERO   0x16
27 #define DASD_ECKD_CCW_WRITE_CKD          0x1d
28 #define DASD_ECKD_CCW_READ_CKD           0x1e
29 #define DASD_ECKD_CCW_PSF                0x27
30 #define DASD_ECKD_CCW_RSSD               0x3e
31 #define DASD_ECKD_CCW_LOCATE_RECORD      0x47
32 #define DASD_ECKD_CCW_SNSS               0x54
33 #define DASD_ECKD_CCW_DEFINE_EXTENT      0x63
34 #define DASD_ECKD_CCW_WRITE_MT           0x85
35 #define DASD_ECKD_CCW_READ_MT            0x86
36 #define DASD_ECKD_CCW_WRITE_KD_MT        0x8d
37 #define DASD_ECKD_CCW_READ_KD_MT         0x8e
38 #define DASD_ECKD_CCW_RELEASE            0x94
39 #define DASD_ECKD_CCW_READ_CKD_MT        0x9e
40 #define DASD_ECKD_CCW_WRITE_CKD_MT       0x9d
41 #define DASD_ECKD_CCW_RESERVE            0xB4
42
43 /*
44  * Perform Subsystem Function / Sub-Orders
45  */
46 #define PSF_ORDER_PRSSD 0x18
47 #define PSF_ORDER_SSC   0x1D
48
49 /*****************************************************************************
50  * SECTION: Type Definitions
51  ****************************************************************************/
52
53 struct eckd_count {
54         __u16 cyl;
55         __u16 head;
56         __u8 record;
57         __u8 kl;
58         __u16 dl;
59 } __attribute__ ((packed));
60
61 struct ch_t {
62         __u16 cyl;
63         __u16 head;
64 } __attribute__ ((packed));
65
66 struct chs_t {
67         __u16 cyl;
68         __u16 head;
69         __u32 sector;
70 } __attribute__ ((packed));
71
72 struct chr_t {
73         __u16 cyl;
74         __u16 head;
75         __u8 record;
76 } __attribute__ ((packed));
77
78 struct geom_t {
79         __u16 cyl;
80         __u16 head;
81         __u32 sector;
82 } __attribute__ ((packed));
83
84 struct eckd_home {
85         __u8 skip_control[14];
86         __u16 cell_number;
87         __u8 physical_addr[3];
88         __u8 flag;
89         struct ch_t track_addr;
90         __u8 reserved;
91         __u8 key_length;
92         __u8 reserved2[2];
93 } __attribute__ ((packed));
94
95 struct DE_eckd_data {
96         struct {
97                 unsigned char perm:2;   /* Permissions on this extent */
98                 unsigned char reserved:1;
99                 unsigned char seek:2;   /* Seek control */
100                 unsigned char auth:2;   /* Access authorization */
101                 unsigned char pci:1;    /* PCI Fetch mode */
102         } __attribute__ ((packed)) mask;
103         struct {
104                 unsigned char mode:2;   /* Architecture mode */
105                 unsigned char ckd:1;    /* CKD Conversion */
106                 unsigned char operation:3;      /* Operation mode */
107                 unsigned char cfw:1;    /* Cache fast write */
108                 unsigned char dfw:1;    /* DASD fast write */
109         } __attribute__ ((packed)) attributes;
110         __u16 blk_size;         /* Blocksize */
111         __u16 fast_write_id;
112         __u8 ga_additional;     /* Global Attributes Additional */
113         __u8 ga_extended;       /* Global Attributes Extended   */
114         struct ch_t beg_ext;
115         struct ch_t end_ext;
116         unsigned long long ep_sys_time; /* Ext Parameter - System Time Stamp */
117         __u8 ep_format;        /* Extended Parameter format byte       */
118         __u8 ep_prio;          /* Extended Parameter priority I/O byte */
119         __u8 ep_reserved[6];   /* Extended Parameter Reserved          */
120 } __attribute__ ((packed));
121
122 struct LO_eckd_data {
123         struct {
124                 unsigned char orientation:2;
125                 unsigned char operation:6;
126         } __attribute__ ((packed)) operation;
127         struct {
128                 unsigned char last_bytes_used:1;
129                 unsigned char reserved:6;
130                 unsigned char read_count_suffix:1;
131         } __attribute__ ((packed)) auxiliary;
132         __u8 unused;
133         __u8 count;
134         struct ch_t seek_addr;
135         struct chr_t search_arg;
136         __u8 sector;
137         __u16 length;
138 } __attribute__ ((packed));
139
140 struct dasd_eckd_characteristics {
141         __u16 cu_type;
142         struct {
143                 unsigned char support:2;
144                 unsigned char async:1;
145                 unsigned char reserved:1;
146                 unsigned char cache_info:1;
147                 unsigned char model:3;
148         } __attribute__ ((packed)) cu_model;
149         __u16 dev_type;
150         __u8 dev_model;
151         struct {
152                 unsigned char mult_burst:1;
153                 unsigned char RT_in_LR:1;
154                 unsigned char reserved1:1;
155                 unsigned char RD_IN_LR:1;
156                 unsigned char reserved2:4;
157                 unsigned char reserved3:8;
158                 unsigned char defect_wr:1;
159                 unsigned char XRC_supported:1;
160                 unsigned char reserved4:1;
161                 unsigned char striping:1;
162                 unsigned char reserved5:4;
163                 unsigned char cfw:1;
164                 unsigned char reserved6:2;
165                 unsigned char cache:1;
166                 unsigned char dual_copy:1;
167                 unsigned char dfw:1;
168                 unsigned char reset_alleg:1;
169                 unsigned char sense_down:1;
170         } __attribute__ ((packed)) facilities;
171         __u8 dev_class;
172         __u8 unit_type;
173         __u16 no_cyl;
174         __u16 trk_per_cyl;
175         __u8 sec_per_trk;
176         __u8 byte_per_track[3];
177         __u16 home_bytes;
178         __u8 formula;
179         union {
180                 struct {
181                         __u8 f1;
182                         __u16 f2;
183                         __u16 f3;
184                 } __attribute__ ((packed)) f_0x01;
185                 struct {
186                         __u8 f1;
187                         __u8 f2;
188                         __u8 f3;
189                         __u8 f4;
190                         __u8 f5;
191                 } __attribute__ ((packed)) f_0x02;
192         } __attribute__ ((packed)) factors;
193         __u16 first_alt_trk;
194         __u16 no_alt_trk;
195         __u16 first_dia_trk;
196         __u16 no_dia_trk;
197         __u16 first_sup_trk;
198         __u16 no_sup_trk;
199         __u8 MDR_ID;
200         __u8 OBR_ID;
201         __u8 director;
202         __u8 rd_trk_set;
203         __u16 max_rec_zero;
204         __u8 reserved1;
205         __u8 RWANY_in_LR;
206         __u8 factor6;
207         __u8 factor7;
208         __u8 factor8;
209         __u8 reserved2[3];
210         __u8 reserved3[10];
211 } __attribute__ ((packed));
212
213 struct dasd_eckd_confdata {
214         struct {
215                 struct {
216                         unsigned char identifier:2;
217                         unsigned char token_id:1;
218                         unsigned char sno_valid:1;
219                         unsigned char subst_sno:1;
220                         unsigned char recNED:1;
221                         unsigned char emuNED:1;
222                         unsigned char reserved:1;
223                 } __attribute__ ((packed)) flags;
224                 __u8 descriptor;
225                 __u8 dev_class;
226                 __u8 reserved;
227                 unsigned char dev_type[6];
228                 unsigned char dev_model[3];
229                 unsigned char HDA_manufacturer[3];
230                 unsigned char HDA_location[2];
231                 unsigned char HDA_seqno[12];
232                 __u8 ID;
233                 __u8 unit_addr;
234         } __attribute__ ((packed)) ned1;
235         union {
236                 struct {
237                         struct {
238                                 unsigned char identifier:2;
239                                 unsigned char token_id:1;
240                                 unsigned char sno_valid:1;
241                                 unsigned char subst_sno:1;
242                                 unsigned char recNED:1;
243                                 unsigned char emuNED:1;
244                                 unsigned char reserved:1;
245                         } __attribute__ ((packed)) flags;
246                         __u8 descriptor;
247                         __u8 reserved[2];
248                         unsigned char dev_type[6];
249                         unsigned char dev_model[3];
250                         unsigned char DASD_manufacturer[3];
251                         unsigned char DASD_location[2];
252                         unsigned char DASD_seqno[12];
253                         __u16 ID;
254                 } __attribute__ ((packed)) ned;
255                 struct {
256                         unsigned char flags;            /* byte  0    */
257                         unsigned char res2[7];          /* byte  1- 7 */
258                         unsigned char sua_flags;        /* byte  8    */
259                         __u8 base_unit_addr;            /* byte  9    */
260                         unsigned char res3[22];         /* byte 10-31 */
261                 } __attribute__ ((packed)) sneq;
262         } __attribute__ ((packed)) ned2;
263         struct {
264                 struct {
265                         unsigned char identifier:2;
266                         unsigned char token_id:1;
267                         unsigned char sno_valid:1;
268                         unsigned char subst_sno:1;
269                         unsigned char recNED:1;
270                         unsigned char emuNED:1;
271                         unsigned char reserved:1;
272                 } __attribute__ ((packed)) flags;
273                 __u8 descriptor;
274                 __u8 reserved[2];
275                 unsigned char cont_type[6];
276                 unsigned char cont_model[3];
277                 unsigned char cont_manufacturer[3];
278                 unsigned char cont_location[2];
279                 unsigned char cont_seqno[12];
280                 __u16 ID;
281         } __attribute__ ((packed)) ned3;
282         struct {
283                 struct {
284                         unsigned char identifier:2;
285                         unsigned char token_id:1;
286                         unsigned char sno_valid:1;
287                         unsigned char subst_sno:1;
288                         unsigned char recNED:1;
289                         unsigned char emuNED:1;
290                         unsigned char reserved:1;
291                 } __attribute__ ((packed)) flags;
292                 __u8 descriptor;
293                 __u8 reserved[2];
294                 unsigned char cont_type[6];
295                 unsigned char empty[3];
296                 unsigned char cont_manufacturer[3];
297                 unsigned char cont_location[2];
298                 unsigned char cont_seqno[12];
299                 __u16 ID;
300         } __attribute__ ((packed)) ned4;
301         unsigned char ned5[32];
302         unsigned char ned6[32];
303         unsigned char ned7[32];
304         struct {
305                 struct {
306                         unsigned char identifier:2;
307                         unsigned char reserved:6;
308                 } __attribute__ ((packed)) flags;
309                 __u8 selector;
310                 __u16 interfaceID;
311                 __u32 reserved;
312                 __u16 subsystemID;
313                 struct {
314                         unsigned char sp0:1;
315                         unsigned char sp1:1;
316                         unsigned char reserved:5;
317                         unsigned char scluster:1;
318                 } __attribute__ ((packed)) spathID;
319                 __u8 unit_address;
320                 __u8 dev_ID;
321                 __u8 dev_address;
322                 __u8 adapterID;
323                 __u16 link_address;
324                 struct {
325                         unsigned char parallel:1;
326                         unsigned char escon:1;
327                         unsigned char reserved:1;
328                         unsigned char ficon:1;
329                         unsigned char reserved2:4;
330                 } __attribute__ ((packed)) protocol_type;
331                 struct {
332                         unsigned char PID_in_236:1;
333                         unsigned char reserved:7;
334                 } __attribute__ ((packed)) format_flags;
335                 __u8 log_dev_address;
336                 unsigned char reserved2[12];
337         } __attribute__ ((packed)) neq;
338 } __attribute__ ((packed));
339
340 struct dasd_eckd_path {
341         __u8 opm;
342         __u8 ppm;
343         __u8 npm;
344 };
345
346 /*
347  * Perform Subsystem Function - Prepare for Read Subsystem Data
348  */
349 struct dasd_psf_prssd_data {
350         unsigned char order;
351         unsigned char flags;
352         unsigned char reserved[4];
353         unsigned char suborder;
354         unsigned char varies[9];
355 } __attribute__ ((packed));
356
357 /*
358  * Perform Subsystem Function - Set Subsystem Characteristics
359  */
360 struct dasd_psf_ssc_data {
361         unsigned char order;
362         unsigned char flags;
363         unsigned char cu_type[4];
364         unsigned char suborder;
365         unsigned char reserved[59];
366 } __attribute__((packed));
367
368 #endif                          /* DASD_ECKD_H */