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Commit | Line | Data |
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138c014d | 1 | /* |
1da177e4 | 2 | * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com> |
138c014d | 3 | * Horst Hummel <Horst.Hummel@de.ibm.com> |
1da177e4 | 4 | * Bugreports.to..: <Linux390@de.ibm.com> |
a53c8fab | 5 | * Copyright IBM Corp. 1999, 2000 |
1da177e4 | 6 | * |
1da177e4 LT |
7 | */ |
8 | ||
9 | #ifndef DASD_ECKD_H | |
10 | #define DASD_ECKD_H | |
11 | ||
12 | /***************************************************************************** | |
13 | * SECTION: CCW Definitions | |
14 | ****************************************************************************/ | |
15 | #define DASD_ECKD_CCW_WRITE 0x05 | |
16 | #define DASD_ECKD_CCW_READ 0x06 | |
17 | #define DASD_ECKD_CCW_WRITE_HOME_ADDRESS 0x09 | |
18 | #define DASD_ECKD_CCW_READ_HOME_ADDRESS 0x0a | |
19 | #define DASD_ECKD_CCW_WRITE_KD 0x0d | |
20 | #define DASD_ECKD_CCW_READ_KD 0x0e | |
21 | #define DASD_ECKD_CCW_ERASE 0x11 | |
22 | #define DASD_ECKD_CCW_READ_COUNT 0x12 | |
23 | #define DASD_ECKD_CCW_SLCK 0x14 | |
24 | #define DASD_ECKD_CCW_WRITE_RECORD_ZERO 0x15 | |
25 | #define DASD_ECKD_CCW_READ_RECORD_ZERO 0x16 | |
26 | #define DASD_ECKD_CCW_WRITE_CKD 0x1d | |
27 | #define DASD_ECKD_CCW_READ_CKD 0x1e | |
28 | #define DASD_ECKD_CCW_PSF 0x27 | |
196339f1 | 29 | #define DASD_ECKD_CCW_SNID 0x34 |
1da177e4 LT |
30 | #define DASD_ECKD_CCW_RSSD 0x3e |
31 | #define DASD_ECKD_CCW_LOCATE_RECORD 0x47 | |
20c64468 | 32 | #define DASD_ECKD_CCW_SNSS 0x54 |
1da177e4 LT |
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 | |
e4dbb0f2 | 39 | #define DASD_ECKD_CCW_WRITE_FULL_TRACK 0x95 |
1da177e4 LT |
40 | #define DASD_ECKD_CCW_READ_CKD_MT 0x9e |
41 | #define DASD_ECKD_CCW_WRITE_CKD_MT 0x9d | |
f3eb5384 SW |
42 | #define DASD_ECKD_CCW_WRITE_TRACK_DATA 0xA5 |
43 | #define DASD_ECKD_CCW_READ_TRACK_DATA 0xA6 | |
1da177e4 | 44 | #define DASD_ECKD_CCW_RESERVE 0xB4 |
e4dbb0f2 | 45 | #define DASD_ECKD_CCW_READ_TRACK 0xDE |
8e09f215 | 46 | #define DASD_ECKD_CCW_PFX 0xE7 |
f3eb5384 | 47 | #define DASD_ECKD_CCW_PFX_READ 0xEA |
8e09f215 | 48 | #define DASD_ECKD_CCW_RSCK 0xF9 |
a4d26c6a | 49 | #define DASD_ECKD_CCW_RCD 0xFA |
1da177e4 LT |
50 | |
51 | /* | |
40545573 | 52 | * Perform Subsystem Function / Sub-Orders |
1da177e4 | 53 | */ |
40545573 HH |
54 | #define PSF_ORDER_PRSSD 0x18 |
55 | #define PSF_ORDER_SSC 0x1D | |
1da177e4 | 56 | |
b44b0ab3 SW |
57 | /* |
58 | * Size that is reportet for large volumes in the old 16-bit no_cyl field | |
59 | */ | |
60 | #define LV_COMPAT_CYL 0xFFFE | |
61 | ||
ef19298b SW |
62 | |
63 | #define FCX_MAX_DATA_FACTOR 65536 | |
a4d26c6a | 64 | #define DASD_ECKD_RCD_DATA_SIZE 256 |
ef19298b SW |
65 | |
66 | ||
1da177e4 LT |
67 | /***************************************************************************** |
68 | * SECTION: Type Definitions | |
69 | ****************************************************************************/ | |
70 | ||
71 | struct eckd_count { | |
72 | __u16 cyl; | |
73 | __u16 head; | |
74 | __u8 record; | |
75 | __u8 kl; | |
76 | __u16 dl; | |
77 | } __attribute__ ((packed)); | |
78 | ||
79 | struct ch_t { | |
80 | __u16 cyl; | |
81 | __u16 head; | |
82 | } __attribute__ ((packed)); | |
83 | ||
84 | struct chs_t { | |
85 | __u16 cyl; | |
86 | __u16 head; | |
87 | __u32 sector; | |
88 | } __attribute__ ((packed)); | |
89 | ||
90 | struct chr_t { | |
91 | __u16 cyl; | |
92 | __u16 head; | |
93 | __u8 record; | |
94 | } __attribute__ ((packed)); | |
95 | ||
96 | struct geom_t { | |
97 | __u16 cyl; | |
98 | __u16 head; | |
99 | __u32 sector; | |
100 | } __attribute__ ((packed)); | |
101 | ||
102 | struct eckd_home { | |
103 | __u8 skip_control[14]; | |
104 | __u16 cell_number; | |
105 | __u8 physical_addr[3]; | |
106 | __u8 flag; | |
107 | struct ch_t track_addr; | |
108 | __u8 reserved; | |
109 | __u8 key_length; | |
110 | __u8 reserved2[2]; | |
111 | } __attribute__ ((packed)); | |
112 | ||
113 | struct DE_eckd_data { | |
114 | struct { | |
115 | unsigned char perm:2; /* Permissions on this extent */ | |
116 | unsigned char reserved:1; | |
117 | unsigned char seek:2; /* Seek control */ | |
118 | unsigned char auth:2; /* Access authorization */ | |
119 | unsigned char pci:1; /* PCI Fetch mode */ | |
120 | } __attribute__ ((packed)) mask; | |
121 | struct { | |
122 | unsigned char mode:2; /* Architecture mode */ | |
123 | unsigned char ckd:1; /* CKD Conversion */ | |
124 | unsigned char operation:3; /* Operation mode */ | |
125 | unsigned char cfw:1; /* Cache fast write */ | |
126 | unsigned char dfw:1; /* DASD fast write */ | |
127 | } __attribute__ ((packed)) attributes; | |
128 | __u16 blk_size; /* Blocksize */ | |
129 | __u16 fast_write_id; | |
130 | __u8 ga_additional; /* Global Attributes Additional */ | |
131 | __u8 ga_extended; /* Global Attributes Extended */ | |
132 | struct ch_t beg_ext; | |
133 | struct ch_t end_ext; | |
134 | unsigned long long ep_sys_time; /* Ext Parameter - System Time Stamp */ | |
135 | __u8 ep_format; /* Extended Parameter format byte */ | |
136 | __u8 ep_prio; /* Extended Parameter priority I/O byte */ | |
f3eb5384 SW |
137 | __u8 ep_reserved1; /* Extended Parameter Reserved */ |
138 | __u8 ep_rec_per_track; /* Number of records on a track */ | |
139 | __u8 ep_reserved[4]; /* Extended Parameter Reserved */ | |
1da177e4 LT |
140 | } __attribute__ ((packed)); |
141 | ||
142 | struct LO_eckd_data { | |
143 | struct { | |
144 | unsigned char orientation:2; | |
145 | unsigned char operation:6; | |
146 | } __attribute__ ((packed)) operation; | |
147 | struct { | |
148 | unsigned char last_bytes_used:1; | |
149 | unsigned char reserved:6; | |
150 | unsigned char read_count_suffix:1; | |
151 | } __attribute__ ((packed)) auxiliary; | |
152 | __u8 unused; | |
153 | __u8 count; | |
154 | struct ch_t seek_addr; | |
155 | struct chr_t search_arg; | |
156 | __u8 sector; | |
157 | __u16 length; | |
158 | } __attribute__ ((packed)); | |
159 | ||
f3eb5384 SW |
160 | struct LRE_eckd_data { |
161 | struct { | |
162 | unsigned char orientation:2; | |
163 | unsigned char operation:6; | |
164 | } __attribute__ ((packed)) operation; | |
165 | struct { | |
166 | unsigned char length_valid:1; | |
167 | unsigned char length_scope:1; | |
168 | unsigned char imbedded_ccw_valid:1; | |
169 | unsigned char check_bytes:2; | |
170 | unsigned char imbedded_count_valid:1; | |
171 | unsigned char reserved:1; | |
172 | unsigned char read_count_suffix:1; | |
173 | } __attribute__ ((packed)) auxiliary; | |
174 | __u8 imbedded_ccw; | |
175 | __u8 count; | |
176 | struct ch_t seek_addr; | |
177 | struct chr_t search_arg; | |
178 | __u8 sector; | |
179 | __u16 length; | |
180 | __u8 imbedded_count; | |
181 | __u8 extended_operation; | |
182 | __u16 extended_parameter_length; | |
183 | __u8 extended_parameter[0]; | |
184 | } __attribute__ ((packed)); | |
185 | ||
8e09f215 SW |
186 | /* Prefix data for format 0x00 and 0x01 */ |
187 | struct PFX_eckd_data { | |
188 | unsigned char format; | |
189 | struct { | |
f3eb5384 | 190 | unsigned char define_extent:1; |
8e09f215 SW |
191 | unsigned char time_stamp:1; |
192 | unsigned char verify_base:1; | |
193 | unsigned char hyper_pav:1; | |
194 | unsigned char reserved:4; | |
195 | } __attribute__ ((packed)) validity; | |
196 | __u8 base_address; | |
197 | __u8 aux; | |
198 | __u8 base_lss; | |
199 | __u8 reserved[7]; | |
f3eb5384 SW |
200 | struct DE_eckd_data define_extent; |
201 | struct LRE_eckd_data locate_record; | |
8e09f215 SW |
202 | } __attribute__ ((packed)); |
203 | ||
1da177e4 LT |
204 | struct dasd_eckd_characteristics { |
205 | __u16 cu_type; | |
206 | struct { | |
207 | unsigned char support:2; | |
208 | unsigned char async:1; | |
209 | unsigned char reserved:1; | |
210 | unsigned char cache_info:1; | |
211 | unsigned char model:3; | |
212 | } __attribute__ ((packed)) cu_model; | |
213 | __u16 dev_type; | |
214 | __u8 dev_model; | |
215 | struct { | |
216 | unsigned char mult_burst:1; | |
217 | unsigned char RT_in_LR:1; | |
218 | unsigned char reserved1:1; | |
219 | unsigned char RD_IN_LR:1; | |
220 | unsigned char reserved2:4; | |
221 | unsigned char reserved3:8; | |
222 | unsigned char defect_wr:1; | |
138c014d | 223 | unsigned char XRC_supported:1; |
1da177e4 LT |
224 | unsigned char reserved4:1; |
225 | unsigned char striping:1; | |
226 | unsigned char reserved5:4; | |
227 | unsigned char cfw:1; | |
228 | unsigned char reserved6:2; | |
229 | unsigned char cache:1; | |
230 | unsigned char dual_copy:1; | |
231 | unsigned char dfw:1; | |
232 | unsigned char reset_alleg:1; | |
233 | unsigned char sense_down:1; | |
234 | } __attribute__ ((packed)) facilities; | |
235 | __u8 dev_class; | |
236 | __u8 unit_type; | |
237 | __u16 no_cyl; | |
238 | __u16 trk_per_cyl; | |
239 | __u8 sec_per_trk; | |
240 | __u8 byte_per_track[3]; | |
241 | __u16 home_bytes; | |
242 | __u8 formula; | |
243 | union { | |
244 | struct { | |
245 | __u8 f1; | |
246 | __u16 f2; | |
247 | __u16 f3; | |
248 | } __attribute__ ((packed)) f_0x01; | |
249 | struct { | |
250 | __u8 f1; | |
251 | __u8 f2; | |
252 | __u8 f3; | |
253 | __u8 f4; | |
254 | __u8 f5; | |
255 | } __attribute__ ((packed)) f_0x02; | |
256 | } __attribute__ ((packed)) factors; | |
257 | __u16 first_alt_trk; | |
258 | __u16 no_alt_trk; | |
259 | __u16 first_dia_trk; | |
260 | __u16 no_dia_trk; | |
261 | __u16 first_sup_trk; | |
262 | __u16 no_sup_trk; | |
263 | __u8 MDR_ID; | |
264 | __u8 OBR_ID; | |
265 | __u8 director; | |
266 | __u8 rd_trk_set; | |
267 | __u16 max_rec_zero; | |
268 | __u8 reserved1; | |
269 | __u8 RWANY_in_LR; | |
270 | __u8 factor6; | |
271 | __u8 factor7; | |
272 | __u8 factor8; | |
273 | __u8 reserved2[3]; | |
b44b0ab3 SW |
274 | __u8 reserved3[6]; |
275 | __u32 long_no_cyl; | |
1da177e4 LT |
276 | } __attribute__ ((packed)); |
277 | ||
4abb08c2 SW |
278 | /* elements of the configuration data */ |
279 | struct dasd_ned { | |
1da177e4 | 280 | struct { |
4abb08c2 SW |
281 | __u8 identifier:2; |
282 | __u8 token_id:1; | |
283 | __u8 sno_valid:1; | |
284 | __u8 subst_sno:1; | |
285 | __u8 recNED:1; | |
286 | __u8 emuNED:1; | |
287 | __u8 reserved:1; | |
288 | } __attribute__ ((packed)) flags; | |
289 | __u8 descriptor; | |
290 | __u8 dev_class; | |
291 | __u8 reserved; | |
292 | __u8 dev_type[6]; | |
293 | __u8 dev_model[3]; | |
294 | __u8 HDA_manufacturer[3]; | |
295 | __u8 HDA_location[2]; | |
296 | __u8 HDA_seqno[12]; | |
297 | __u8 ID; | |
298 | __u8 unit_addr; | |
299 | } __attribute__ ((packed)); | |
300 | ||
301 | struct dasd_sneq { | |
1da177e4 | 302 | struct { |
4abb08c2 SW |
303 | __u8 identifier:2; |
304 | __u8 reserved:6; | |
305 | } __attribute__ ((packed)) flags; | |
306 | __u8 res1; | |
307 | __u16 format; | |
308 | __u8 res2[4]; /* byte 4- 7 */ | |
309 | __u8 sua_flags; /* byte 8 */ | |
310 | __u8 base_unit_addr; /* byte 9 */ | |
311 | __u8 res3[22]; /* byte 10-31 */ | |
312 | } __attribute__ ((packed)); | |
313 | ||
314 | struct vd_sneq { | |
1da177e4 | 315 | struct { |
4abb08c2 SW |
316 | __u8 identifier:2; |
317 | __u8 reserved:6; | |
318 | } __attribute__ ((packed)) flags; | |
319 | __u8 res1; | |
320 | __u16 format; | |
321 | __u8 res2[4]; /* byte 4- 7 */ | |
322 | __u8 uit[16]; /* byte 8-23 */ | |
323 | __u8 res3[8]; /* byte 24-31 */ | |
324 | } __attribute__ ((packed)); | |
325 | ||
326 | struct dasd_gneq { | |
1da177e4 | 327 | struct { |
4abb08c2 SW |
328 | __u8 identifier:2; |
329 | __u8 reserved:6; | |
330 | } __attribute__ ((packed)) flags; | |
7c8faa86 SH |
331 | __u8 reserved[5]; |
332 | struct { | |
333 | __u8 value:2; | |
334 | __u8 number:6; | |
335 | } __attribute__ ((packed)) timeout; | |
336 | __u8 reserved3; | |
4abb08c2 SW |
337 | __u16 subsystemID; |
338 | __u8 reserved2[22]; | |
1da177e4 LT |
339 | } __attribute__ ((packed)); |
340 | ||
8e09f215 SW |
341 | struct dasd_rssd_features { |
342 | char feature[256]; | |
343 | } __attribute__((packed)); | |
344 | ||
345 | ||
1da177e4 | 346 | /* |
138c014d | 347 | * Perform Subsystem Function - Prepare for Read Subsystem Data |
1da177e4 LT |
348 | */ |
349 | struct dasd_psf_prssd_data { | |
350 | unsigned char order; | |
351 | unsigned char flags; | |
352 | unsigned char reserved[4]; | |
353 | unsigned char suborder; | |
49fd38bd | 354 | unsigned char varies[5]; |
1da177e4 LT |
355 | } __attribute__ ((packed)); |
356 | ||
40545573 HH |
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 | ||
8e09f215 SW |
368 | |
369 | /* | |
370 | * some structures and definitions for alias handling | |
371 | */ | |
372 | struct dasd_unit_address_configuration { | |
373 | struct { | |
374 | char ua_type; | |
375 | char base_ua; | |
376 | } unit[256]; | |
377 | } __attribute__((packed)); | |
378 | ||
379 | ||
380 | #define MAX_DEVICES_PER_LCU 256 | |
381 | ||
382 | /* flags on the LCU */ | |
383 | #define NEED_UAC_UPDATE 0x01 | |
384 | #define UPDATE_PENDING 0x02 | |
385 | ||
386 | enum pavtype {NO_PAV, BASE_PAV, HYPER_PAV}; | |
387 | ||
388 | ||
389 | struct alias_root { | |
390 | struct list_head serverlist; | |
391 | spinlock_t lock; | |
392 | }; | |
393 | ||
394 | struct alias_server { | |
395 | struct list_head server; | |
396 | struct dasd_uid uid; | |
397 | struct list_head lculist; | |
398 | }; | |
399 | ||
400 | struct summary_unit_check_work_data { | |
401 | char reason; | |
402 | struct dasd_device *device; | |
403 | struct work_struct worker; | |
404 | }; | |
405 | ||
406 | struct read_uac_work_data { | |
407 | struct dasd_device *device; | |
408 | struct delayed_work dwork; | |
409 | }; | |
410 | ||
411 | struct alias_lcu { | |
412 | struct list_head lcu; | |
413 | struct dasd_uid uid; | |
414 | enum pavtype pav; | |
415 | char flags; | |
416 | spinlock_t lock; | |
417 | struct list_head grouplist; | |
418 | struct list_head active_devices; | |
419 | struct list_head inactive_devices; | |
420 | struct dasd_unit_address_configuration *uac; | |
421 | struct summary_unit_check_work_data suc_data; | |
422 | struct read_uac_work_data ruac_data; | |
423 | struct dasd_ccw_req *rsu_cqr; | |
f4ac1d02 | 424 | struct completion lcu_setup; |
8e09f215 SW |
425 | }; |
426 | ||
427 | struct alias_pav_group { | |
428 | struct list_head group; | |
429 | struct dasd_uid uid; | |
430 | struct alias_lcu *lcu; | |
431 | struct list_head baselist; | |
432 | struct list_head aliaslist; | |
433 | struct dasd_device *next; | |
434 | }; | |
435 | ||
8e09f215 SW |
436 | struct dasd_eckd_private { |
437 | struct dasd_eckd_characteristics rdc_data; | |
4abb08c2 SW |
438 | u8 *conf_data; |
439 | int conf_len; | |
440 | /* pointers to specific parts in the conf_data */ | |
441 | struct dasd_ned *ned; | |
442 | struct dasd_sneq *sneq; | |
443 | struct vd_sneq *vdsneq; | |
444 | struct dasd_gneq *gneq; | |
445 | ||
8e09f215 SW |
446 | struct eckd_count count_area[5]; |
447 | int init_cqr_status; | |
448 | int uses_cdl; | |
449 | struct attrib_data_t attrib; /* e.g. cache operations */ | |
450 | struct dasd_rssd_features features; | |
b44b0ab3 | 451 | u32 real_cyl; |
8e09f215 SW |
452 | |
453 | /* alias managemnet */ | |
454 | struct dasd_uid uid; | |
455 | struct alias_pav_group *pavgroup; | |
456 | struct alias_lcu *lcu; | |
457 | int count; | |
ef19298b SW |
458 | |
459 | u32 fcx_max_data; | |
8e09f215 SW |
460 | }; |
461 | ||
462 | ||
463 | ||
464 | int dasd_alias_make_device_known_to_lcu(struct dasd_device *); | |
465 | void dasd_alias_disconnect_device_from_lcu(struct dasd_device *); | |
466 | int dasd_alias_add_device(struct dasd_device *); | |
467 | int dasd_alias_remove_device(struct dasd_device *); | |
468 | struct dasd_device *dasd_alias_get_start_dev(struct dasd_device *); | |
469 | void dasd_alias_handle_summary_unit_check(struct dasd_device *, struct irb *); | |
470 | void dasd_eckd_reset_ccw_to_base_io(struct dasd_ccw_req *); | |
f4ac1d02 SW |
471 | void dasd_alias_lcu_setup_complete(struct dasd_device *); |
472 | void dasd_alias_wait_for_lcu_setup(struct dasd_device *); | |
501183f2 | 473 | int dasd_alias_update_add_device(struct dasd_device *); |
1da177e4 | 474 | #endif /* DASD_ECKD_H */ |