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gerrit-public.fairphone.software / kernel / msm / 20c644680af1ef9a6b36c0873f59498c98b07ab1 / . / drivers / s390 / block / dasd_eckd.h
blob: ad8524bb7bb3a1feec9682482097b22a49f4e2c4 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]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 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]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
Stefan Weinhuber20c64462006-03-24 03:15:25 -0800[diff] [blame^]32#define DASD_ECKD_CCW_SNSS 0x54
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]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
48/*****************************************************************************
49 * SECTION: Type Definitions
50 ****************************************************************************/
51
52struct eckd_count {
53 __u16 cyl;
54 __u16 head;
55 __u8 record;
56 __u8 kl;
57 __u16 dl;
58} __attribute__ ((packed));
59
60struct ch_t {
61 __u16 cyl;
62 __u16 head;
63} __attribute__ ((packed));
64
65struct chs_t {
66 __u16 cyl;
67 __u16 head;
68 __u32 sector;
69} __attribute__ ((packed));
70
71struct chr_t {
72 __u16 cyl;
73 __u16 head;
74 __u8 record;
75} __attribute__ ((packed));
76
77struct geom_t {
78 __u16 cyl;
79 __u16 head;
80 __u32 sector;
81} __attribute__ ((packed));
82
83struct eckd_home {
84 __u8 skip_control[14];
85 __u16 cell_number;
86 __u8 physical_addr[3];
87 __u8 flag;
88 struct ch_t track_addr;
89 __u8 reserved;
90 __u8 key_length;
91 __u8 reserved2[2];
92} __attribute__ ((packed));
93
94struct DE_eckd_data {
95 struct {
96 unsigned char perm:2; /* Permissions on this extent */
97 unsigned char reserved:1;
98 unsigned char seek:2; /* Seek control */
99 unsigned char auth:2; /* Access authorization */
100 unsigned char pci:1; /* PCI Fetch mode */
101 } __attribute__ ((packed)) mask;
102 struct {
103 unsigned char mode:2; /* Architecture mode */
104 unsigned char ckd:1; /* CKD Conversion */
105 unsigned char operation:3; /* Operation mode */
106 unsigned char cfw:1; /* Cache fast write */
107 unsigned char dfw:1; /* DASD fast write */
108 } __attribute__ ((packed)) attributes;
109 __u16 blk_size; /* Blocksize */
110 __u16 fast_write_id;
111 __u8 ga_additional; /* Global Attributes Additional */
112 __u8 ga_extended; /* Global Attributes Extended */
113 struct ch_t beg_ext;
114 struct ch_t end_ext;
115 unsigned long long ep_sys_time; /* Ext Parameter - System Time Stamp */
116 __u8 ep_format; /* Extended Parameter format byte */
117 __u8 ep_prio; /* Extended Parameter priority I/O byte */
118 __u8 ep_reserved[6]; /* Extended Parameter Reserved */
119} __attribute__ ((packed));
120
121struct LO_eckd_data {
122 struct {
123 unsigned char orientation:2;
124 unsigned char operation:6;
125 } __attribute__ ((packed)) operation;
126 struct {
127 unsigned char last_bytes_used:1;
128 unsigned char reserved:6;
129 unsigned char read_count_suffix:1;
130 } __attribute__ ((packed)) auxiliary;
131 __u8 unused;
132 __u8 count;
133 struct ch_t seek_addr;
134 struct chr_t search_arg;
135 __u8 sector;
136 __u16 length;
137} __attribute__ ((packed));
138
139struct dasd_eckd_characteristics {
140 __u16 cu_type;
141 struct {
142 unsigned char support:2;
143 unsigned char async:1;
144 unsigned char reserved:1;
145 unsigned char cache_info:1;
146 unsigned char model:3;
147 } __attribute__ ((packed)) cu_model;
148 __u16 dev_type;
149 __u8 dev_model;
150 struct {
151 unsigned char mult_burst:1;
152 unsigned char RT_in_LR:1;
153 unsigned char reserved1:1;
154 unsigned char RD_IN_LR:1;
155 unsigned char reserved2:4;
156 unsigned char reserved3:8;
157 unsigned char defect_wr:1;
158 unsigned char XRC_supported:1;
159 unsigned char reserved4:1;
160 unsigned char striping:1;
161 unsigned char reserved5:4;
162 unsigned char cfw:1;
163 unsigned char reserved6:2;
164 unsigned char cache:1;
165 unsigned char dual_copy:1;
166 unsigned char dfw:1;
167 unsigned char reset_alleg:1;
168 unsigned char sense_down:1;
169 } __attribute__ ((packed)) facilities;
170 __u8 dev_class;
171 __u8 unit_type;
172 __u16 no_cyl;
173 __u16 trk_per_cyl;
174 __u8 sec_per_trk;
175 __u8 byte_per_track[3];
176 __u16 home_bytes;
177 __u8 formula;
178 union {
179 struct {
180 __u8 f1;
181 __u16 f2;
182 __u16 f3;
183 } __attribute__ ((packed)) f_0x01;
184 struct {
185 __u8 f1;
186 __u8 f2;
187 __u8 f3;
188 __u8 f4;
189 __u8 f5;
190 } __attribute__ ((packed)) f_0x02;
191 } __attribute__ ((packed)) factors;
192 __u16 first_alt_trk;
193 __u16 no_alt_trk;
194 __u16 first_dia_trk;
195 __u16 no_dia_trk;
196 __u16 first_sup_trk;
197 __u16 no_sup_trk;
198 __u8 MDR_ID;
199 __u8 OBR_ID;
200 __u8 director;
201 __u8 rd_trk_set;
202 __u16 max_rec_zero;
203 __u8 reserved1;
204 __u8 RWANY_in_LR;
205 __u8 factor6;
206 __u8 factor7;
207 __u8 factor8;
208 __u8 reserved2[3];
209 __u8 reserved3[10];
210} __attribute__ ((packed));
211
212struct dasd_eckd_confdata {
213 struct {
214 struct {
215 unsigned char identifier:2;
216 unsigned char token_id:1;
217 unsigned char sno_valid:1;
218 unsigned char subst_sno:1;
219 unsigned char recNED:1;
220 unsigned char emuNED:1;
221 unsigned char reserved:1;
222 } __attribute__ ((packed)) flags;
223 __u8 descriptor;
224 __u8 dev_class;
225 __u8 reserved;
226 unsigned char dev_type[6];
227 unsigned char dev_model[3];
228 unsigned char HDA_manufacturer[3];
229 unsigned char HDA_location[2];
230 unsigned char HDA_seqno[12];
231 __u16 ID;
232 } __attribute__ ((packed)) ned1;
233 struct {
234 struct {
235 unsigned char identifier:2;
236 unsigned char token_id:1;
237 unsigned char sno_valid:1;
238 unsigned char subst_sno:1;
239 unsigned char recNED:1;
240 unsigned char emuNED:1;
241 unsigned char reserved:1;
242 } __attribute__ ((packed)) flags;
243 __u8 descriptor;
244 __u8 reserved[2];
245 unsigned char dev_type[6];
246 unsigned char dev_model[3];
247 unsigned char DASD_manufacturer[3];
248 unsigned char DASD_location[2];
249 unsigned char DASD_seqno[12];
250 __u16 ID;
251 } __attribute__ ((packed)) ned2;
252 struct {
253 struct {
254 unsigned char identifier:2;
255 unsigned char token_id:1;
256 unsigned char sno_valid:1;
257 unsigned char subst_sno:1;
258 unsigned char recNED:1;
259 unsigned char emuNED:1;
260 unsigned char reserved:1;
261 } __attribute__ ((packed)) flags;
262 __u8 descriptor;
263 __u8 reserved[2];
264 unsigned char cont_type[6];
265 unsigned char cont_model[3];
266 unsigned char cont_manufacturer[3];
267 unsigned char cont_location[2];
268 unsigned char cont_seqno[12];
269 __u16 ID;
270 } __attribute__ ((packed)) ned3;
271 struct {
272 struct {
273 unsigned char identifier:2;
274 unsigned char token_id:1;
275 unsigned char sno_valid:1;
276 unsigned char subst_sno:1;
277 unsigned char recNED:1;
278 unsigned char emuNED:1;
279 unsigned char reserved:1;
280 } __attribute__ ((packed)) flags;
281 __u8 descriptor;
282 __u8 reserved[2];
283 unsigned char cont_type[6];
284 unsigned char empty[3];
285 unsigned char cont_manufacturer[3];
286 unsigned char cont_location[2];
287 unsigned char cont_seqno[12];
288 __u16 ID;
289 } __attribute__ ((packed)) ned4;
290 unsigned char ned5[32];
291 unsigned char ned6[32];
292 unsigned char ned7[32];
293 struct {
294 struct {
295 unsigned char identifier:2;
296 unsigned char reserved:6;
297 } __attribute__ ((packed)) flags;
298 __u8 selector;
299 __u16 interfaceID;
300 __u32 reserved;
301 __u16 subsystemID;
302 struct {
303 unsigned char sp0:1;
304 unsigned char sp1:1;
305 unsigned char reserved:5;
306 unsigned char scluster:1;
307 } __attribute__ ((packed)) spathID;
308 __u8 unit_address;
309 __u8 dev_ID;
310 __u8 dev_address;
311 __u8 adapterID;
312 __u16 link_address;
313 struct {
314 unsigned char parallel:1;
315 unsigned char escon:1;
316 unsigned char reserved:1;
317 unsigned char ficon:1;
318 unsigned char reserved2:4;
319 } __attribute__ ((packed)) protocol_type;
320 struct {
321 unsigned char PID_in_236:1;
322 unsigned char reserved:7;
323 } __attribute__ ((packed)) format_flags;
324 __u8 log_dev_address;
325 unsigned char reserved2[12];
326 } __attribute__ ((packed)) neq;
327} __attribute__ ((packed));
328
329struct dasd_eckd_path {
330 __u8 opm;
331 __u8 ppm;
332 __u8 npm;
333};
334
335/*
336 * Perform Subsystem Function - Prepare for Read Subsystem Data
337 */
338struct dasd_psf_prssd_data {
339 unsigned char order;
340 unsigned char flags;
341 unsigned char reserved[4];
342 unsigned char suborder;
343 unsigned char varies[9];
344} __attribute__ ((packed));
345
346#endif /* DASD_ECKD_H */