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10 #ifndef DASD_ECKD_H
11 #define DASD_ECKD_H
12
13
14
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_SNID 0x34
31 #define DASD_ECKD_CCW_RSSD 0x3e
32 #define DASD_ECKD_CCW_LOCATE_RECORD 0x47
33 #define DASD_ECKD_CCW_LOCATE_RECORD_EXT 0x4b
34 #define DASD_ECKD_CCW_SNSS 0x54
35 #define DASD_ECKD_CCW_DEFINE_EXTENT 0x63
36 #define DASD_ECKD_CCW_WRITE_MT 0x85
37 #define DASD_ECKD_CCW_READ_MT 0x86
38 #define DASD_ECKD_CCW_WRITE_KD_MT 0x8d
39 #define DASD_ECKD_CCW_READ_KD_MT 0x8e
40 #define DASD_ECKD_CCW_READ_COUNT_MT 0x92
41 #define DASD_ECKD_CCW_RELEASE 0x94
42 #define DASD_ECKD_CCW_WRITE_FULL_TRACK 0x95
43 #define DASD_ECKD_CCW_READ_CKD_MT 0x9e
44 #define DASD_ECKD_CCW_WRITE_CKD_MT 0x9d
45 #define DASD_ECKD_CCW_WRITE_TRACK_DATA 0xA5
46 #define DASD_ECKD_CCW_READ_TRACK_DATA 0xA6
47 #define DASD_ECKD_CCW_RESERVE 0xB4
48 #define DASD_ECKD_CCW_READ_TRACK 0xDE
49 #define DASD_ECKD_CCW_PFX 0xE7
50 #define DASD_ECKD_CCW_PFX_READ 0xEA
51 #define DASD_ECKD_CCW_RSCK 0xF9
52 #define DASD_ECKD_CCW_RCD 0xFA
53 #define DASD_ECKD_CCW_DSO 0xF7
54
55
56 #define DSO_ORDER_RAS 0x81
57
58
59
60
61 #define PSF_ORDER_PRSSD 0x18
62 #define PSF_ORDER_CUIR_RESPONSE 0x1A
63 #define PSF_ORDER_SSC 0x1D
64
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66
67
68 #define PSF_SUBORDER_QHA 0x1C
69 #define PSF_SUBORDER_VSQ 0x52
70 #define PSF_SUBORDER_LCQ 0x53
71
72
73
74
75 #define PSF_CUIR_INVALID 0x00
76 #define PSF_CUIR_COMPLETED 0x01
77 #define PSF_CUIR_NOT_SUPPORTED 0x02
78 #define PSF_CUIR_ERROR_IN_REQ 0x03
79 #define PSF_CUIR_DENIED 0x04
80 #define PSF_CUIR_LAST_PATH 0x05
81 #define PSF_CUIR_DEVICE_ONLINE 0x06
82 #define PSF_CUIR_VARY_FAILURE 0x07
83 #define PSF_CUIR_SOFTWARE_FAILURE 0x08
84 #define PSF_CUIR_NOT_RECOGNIZED 0x09
85
86
87
88
89 #define CUIR_QUIESCE 0x01
90 #define CUIR_RESUME 0x02
91
92
93
94
95 #define REPO_WARN 0x01
96 #define REPO_EXHAUST 0x02
97 #define POOL_WARN 0x03
98 #define POOL_EXHAUST 0x04
99 #define REPO_RELIEVE 0x05
100 #define POOL_RELIEVE 0x06
101
102
103
104
105 #define ATTENTION_LENGTH_CUIR 0x0e
106 #define ATTENTION_FORMAT_CUIR 0x01
107 #define ATTENTION_LENGTH_OOS 0x10
108 #define ATTENTION_FORMAT_OOS 0x06
109
110 #define DASD_ECKD_PG_GROUPED 0x10
111
112
113
114
115 #define LV_COMPAT_CYL 0xFFFE
116
117
118 #define FCX_MAX_DATA_FACTOR 65536
119 #define DASD_ECKD_RCD_DATA_SIZE 256
120
121 #define DASD_ECKD_PATH_THRHLD 256
122 #define DASD_ECKD_PATH_INTERVAL 300
123
124
125
126
127 #define DASD_ECKD_MAX_BLOCKS 190
128 #define DASD_ECKD_MAX_BLOCKS_RAW 256
129
130
131
132
133
134 struct eckd_count {
135 __u16 cyl;
136 __u16 head;
137 __u8 record;
138 __u8 kl;
139 __u16 dl;
140 } __attribute__ ((packed));
141
142 struct ch_t {
143 __u16 cyl;
144 __u16 head;
145 } __attribute__ ((packed));
146
147 struct chr_t {
148 __u16 cyl;
149 __u16 head;
150 __u8 record;
151 } __attribute__ ((packed));
152
153 struct DE_eckd_data {
154 struct {
155 unsigned char perm:2;
156 unsigned char reserved:1;
157 unsigned char seek:2;
158 unsigned char auth:2;
159 unsigned char pci:1;
160 } __attribute__ ((packed)) mask;
161 struct {
162 unsigned char mode:2;
163 unsigned char ckd:1;
164 unsigned char operation:3;
165 unsigned char cfw:1;
166 unsigned char dfw:1;
167 } __attribute__ ((packed)) attributes;
168 __u16 blk_size;
169 __u16 fast_write_id;
170 __u8 ga_additional;
171 __u8 ga_extended;
172 struct ch_t beg_ext;
173 struct ch_t end_ext;
174 unsigned long ep_sys_time;
175 __u8 ep_format;
176 __u8 ep_prio;
177 __u8 ep_reserved1;
178 __u8 ep_rec_per_track;
179 __u8 ep_reserved[4];
180 } __attribute__ ((packed));
181
182 struct LO_eckd_data {
183 struct {
184 unsigned char orientation:2;
185 unsigned char operation:6;
186 } __attribute__ ((packed)) operation;
187 struct {
188 unsigned char last_bytes_used:1;
189 unsigned char reserved:6;
190 unsigned char read_count_suffix:1;
191 } __attribute__ ((packed)) auxiliary;
192 __u8 unused;
193 __u8 count;
194 struct ch_t seek_addr;
195 struct chr_t search_arg;
196 __u8 sector;
197 __u16 length;
198 } __attribute__ ((packed));
199
200 struct LRE_eckd_data {
201 struct {
202 unsigned char orientation:2;
203 unsigned char operation:6;
204 } __attribute__ ((packed)) operation;
205 struct {
206 unsigned char length_valid:1;
207 unsigned char length_scope:1;
208 unsigned char imbedded_ccw_valid:1;
209 unsigned char check_bytes:2;
210 unsigned char imbedded_count_valid:1;
211 unsigned char reserved:1;
212 unsigned char read_count_suffix:1;
213 } __attribute__ ((packed)) auxiliary;
214 __u8 imbedded_ccw;
215 __u8 count;
216 struct ch_t seek_addr;
217 struct chr_t search_arg;
218 __u8 sector;
219 __u16 length;
220 __u8 imbedded_count;
221 __u8 extended_operation;
222 __u16 extended_parameter_length;
223 __u8 extended_parameter[0];
224 } __attribute__ ((packed));
225
226
227 struct PFX_eckd_data {
228 unsigned char format;
229 struct {
230 unsigned char define_extent:1;
231 unsigned char time_stamp:1;
232 unsigned char verify_base:1;
233 unsigned char hyper_pav:1;
234 unsigned char reserved:4;
235 } __attribute__ ((packed)) validity;
236 __u8 base_address;
237 __u8 aux;
238 __u8 base_lss;
239 __u8 reserved[7];
240 struct DE_eckd_data define_extent;
241 struct LRE_eckd_data locate_record;
242 } __attribute__ ((packed));
243
244 struct dasd_eckd_characteristics {
245 __u16 cu_type;
246 struct {
247 unsigned char support:2;
248 unsigned char async:1;
249 unsigned char reserved:1;
250 unsigned char cache_info:1;
251 unsigned char model:3;
252 } __attribute__ ((packed)) cu_model;
253 __u16 dev_type;
254 __u8 dev_model;
255 struct {
256 unsigned char mult_burst:1;
257 unsigned char RT_in_LR:1;
258 unsigned char reserved1:1;
259 unsigned char RD_IN_LR:1;
260 unsigned char reserved2:4;
261 unsigned char reserved3:8;
262 unsigned char defect_wr:1;
263 unsigned char XRC_supported:1;
264 unsigned char reserved4:1;
265 unsigned char striping:1;
266 unsigned char reserved5:4;
267 unsigned char cfw:1;
268 unsigned char reserved6:2;
269 unsigned char cache:1;
270 unsigned char dual_copy:1;
271 unsigned char dfw:1;
272 unsigned char reset_alleg:1;
273 unsigned char sense_down:1;
274 } __attribute__ ((packed)) facilities;
275 __u8 dev_class;
276 __u8 unit_type;
277 __u16 no_cyl;
278 __u16 trk_per_cyl;
279 __u8 sec_per_trk;
280 __u8 byte_per_track[3];
281 __u16 home_bytes;
282 __u8 formula;
283 union {
284 struct {
285 __u8 f1;
286 __u16 f2;
287 __u16 f3;
288 } __attribute__ ((packed)) f_0x01;
289 struct {
290 __u8 f1;
291 __u8 f2;
292 __u8 f3;
293 __u8 f4;
294 __u8 f5;
295 } __attribute__ ((packed)) f_0x02;
296 } __attribute__ ((packed)) factors;
297 __u16 first_alt_trk;
298 __u16 no_alt_trk;
299 __u16 first_dia_trk;
300 __u16 no_dia_trk;
301 __u16 first_sup_trk;
302 __u16 no_sup_trk;
303 __u8 MDR_ID;
304 __u8 OBR_ID;
305 __u8 director;
306 __u8 rd_trk_set;
307 __u16 max_rec_zero;
308 __u8 reserved1;
309 __u8 RWANY_in_LR;
310 __u8 factor6;
311 __u8 factor7;
312 __u8 factor8;
313 __u8 reserved2[3];
314 __u8 reserved3[6];
315 __u32 long_no_cyl;
316 } __attribute__ ((packed));
317
318
319 struct dasd_ned {
320 struct {
321 __u8 identifier:2;
322 __u8 token_id:1;
323 __u8 sno_valid:1;
324 __u8 subst_sno:1;
325 __u8 recNED:1;
326 __u8 emuNED:1;
327 __u8 reserved:1;
328 } __attribute__ ((packed)) flags;
329 __u8 descriptor;
330 __u8 dev_class;
331 __u8 reserved;
332 __u8 dev_type[6];
333 __u8 dev_model[3];
334 __u8 HDA_manufacturer[3];
335 __u8 HDA_location[2];
336 __u8 HDA_seqno[12];
337 __u8 ID;
338 __u8 unit_addr;
339 } __attribute__ ((packed));
340
341 struct dasd_sneq {
342 struct {
343 __u8 identifier:2;
344 __u8 reserved:6;
345 } __attribute__ ((packed)) flags;
346 __u8 res1;
347 __u16 format;
348 __u8 res2[4];
349 __u8 sua_flags;
350 __u8 base_unit_addr;
351 __u8 res3[22];
352 } __attribute__ ((packed));
353
354 struct vd_sneq {
355 struct {
356 __u8 identifier:2;
357 __u8 reserved:6;
358 } __attribute__ ((packed)) flags;
359 __u8 res1;
360 __u16 format;
361 __u8 res2[4];
362 __u8 uit[16];
363 __u8 res3[8];
364 } __attribute__ ((packed));
365
366 struct dasd_gneq {
367 struct {
368 __u8 identifier:2;
369 __u8 reserved:6;
370 } __attribute__ ((packed)) flags;
371 __u8 record_selector;
372 __u8 reserved[4];
373 struct {
374 __u8 value:2;
375 __u8 number:6;
376 } __attribute__ ((packed)) timeout;
377 __u8 reserved3;
378 __u16 subsystemID;
379 __u8 reserved2[22];
380 } __attribute__ ((packed));
381
382 struct dasd_rssd_features {
383 char feature[256];
384 } __attribute__((packed));
385
386 struct dasd_rssd_messages {
387 __u16 length;
388 __u8 format;
389 __u8 code;
390 __u32 message_id;
391 __u8 flags;
392 char messages[4087];
393 } __packed;
394
395
396
397
398 struct dasd_rssd_vsq {
399 struct {
400 __u8 tse:1;
401 __u8 space_not_available:1;
402 __u8 ese:1;
403 __u8 unused:5;
404 } __packed vol_info;
405 __u8 unused1;
406 __u16 extent_pool_id;
407 __u8 warn_cap_limit;
408 __u8 warn_cap_guaranteed;
409 __u16 unused2;
410 __u32 limit_capacity;
411 __u32 guaranteed_capacity;
412 __u32 space_allocated;
413 __u32 space_configured;
414 __u32 logical_capacity;
415 } __packed;
416
417
418
419
420 struct dasd_ext_pool_sum {
421 __u16 pool_id;
422 __u8 repo_warn_thrshld;
423 __u8 warn_thrshld;
424 struct {
425 __u8 type:1;
426 __u8 track_space_efficient:1;
427 __u8 extent_space_efficient:1;
428 __u8 standard_volume:1;
429 __u8 extent_size_valid:1;
430 __u8 capacity_at_warnlevel:1;
431 __u8 pool_oos:1;
432 __u8 unused0:1;
433 __u8 unused1;
434 } __packed flags;
435 struct {
436 __u8 reserved0:1;
437 __u8 size_1G:1;
438 __u8 reserved1:5;
439 __u8 size_16M:1;
440 } __packed extent_size;
441 __u8 unused;
442 } __packed;
443
444
445
446
447 struct dasd_rssd_lcq {
448 __u16 data_length;
449 __u16 pool_count;
450 struct {
451 __u8 pool_info_valid:1;
452 __u8 pool_id_volume:1;
453 __u8 pool_id_cec:1;
454 __u8 unused0:5;
455 __u8 unused1;
456 } __packed header_flags;
457 char sfi_type[6];
458 char sfi_model[3];
459 __u8 sfi_seq_num[10];
460 __u8 reserved[7];
461 struct dasd_ext_pool_sum ext_pool_sum[448];
462 } __packed;
463
464 struct dasd_oos_message {
465 __u16 length;
466 __u8 format;
467 __u8 code;
468 __u8 percentage_empty;
469 __u8 reserved;
470 __u16 ext_pool_id;
471 __u16 token;
472 __u8 unused[6];
473 } __packed;
474
475 struct dasd_cuir_message {
476 __u16 length;
477 __u8 format;
478 __u8 code;
479 __u32 message_id;
480 __u8 flags;
481 __u8 neq_map[3];
482 __u8 ned_map;
483 __u8 record_selector;
484 } __packed;
485
486 struct dasd_psf_cuir_response {
487 __u8 order;
488 __u8 flags;
489 __u8 cc;
490 __u8 chpid;
491 __u16 device_nr;
492 __u16 reserved;
493 __u32 message_id;
494 __u64 system_id;
495 __u8 cssid;
496 __u8 ssid;
497 } __packed;
498
499 struct dasd_ckd_path_group_entry {
500 __u8 status_flags;
501 __u8 pgid[11];
502 __u8 sysplex_name[8];
503 __u32 timestamp;
504 __u32 cylinder;
505 __u8 reserved[4];
506 } __packed;
507
508 struct dasd_ckd_host_information {
509 __u8 access_flags;
510 __u8 entry_size;
511 __u16 entry_count;
512 __u8 entry[16390];
513 } __packed;
514
515 struct dasd_psf_query_host_access {
516 __u8 access_flag;
517 __u8 version;
518 __u16 CKD_length;
519 __u16 SCSI_length;
520 __u8 unused[10];
521 __u8 host_access_information[16394];
522 } __packed;
523
524
525
526
527 struct dasd_psf_prssd_data {
528 unsigned char order;
529 unsigned char flags;
530 unsigned char reserved1;
531 unsigned char reserved2;
532 unsigned char lss;
533 unsigned char volume;
534 unsigned char suborder;
535 unsigned char varies[5];
536 } __attribute__ ((packed));
537
538
539
540
541 struct dasd_psf_ssc_data {
542 unsigned char order;
543 unsigned char flags;
544 unsigned char cu_type[4];
545 unsigned char suborder;
546 unsigned char reserved[59];
547 } __attribute__((packed));
548
549
550 #define DASD_ECKD_RAS_EXTS_MAX 110U
551
552 struct dasd_dso_ras_ext_range {
553 struct ch_t beg_ext;
554 struct ch_t end_ext;
555 } __packed;
556
557
558
559
560 struct dasd_dso_ras_data {
561 __u8 order;
562 struct {
563 __u8 message:1;
564 __u8 reserved1:2;
565 __u8 vol_type:1;
566 __u8 reserved2:4;
567 } __packed flags;
568
569 struct {
570 __u8 reserved1:2;
571
572 __u8 by_extent:1;
573 __u8 guarantee_init:1;
574 __u8 force_release:1;
575 __u16 reserved2:11;
576 } __packed op_flags;
577 __u8 lss;
578 __u8 dev_addr;
579 __u32 reserved1;
580 __u8 reserved2[10];
581 __u16 nr_exts;
582 __u16 reserved3;
583 } __packed;
584
585
586
587
588
589 struct dasd_unit_address_configuration {
590 struct {
591 char ua_type;
592 char base_ua;
593 } unit[256];
594 } __attribute__((packed));
595
596
597 #define MAX_DEVICES_PER_LCU 256
598
599
600 #define NEED_UAC_UPDATE 0x01
601 #define UPDATE_PENDING 0x02
602
603 enum pavtype {NO_PAV, BASE_PAV, HYPER_PAV};
604
605
606 struct alias_root {
607 struct list_head serverlist;
608 spinlock_t lock;
609 };
610
611 struct alias_server {
612 struct list_head server;
613 struct dasd_uid uid;
614 struct list_head lculist;
615 };
616
617 struct summary_unit_check_work_data {
618 char reason;
619 struct dasd_device *device;
620 struct work_struct worker;
621 };
622
623 struct read_uac_work_data {
624 struct dasd_device *device;
625 struct delayed_work dwork;
626 };
627
628 struct alias_lcu {
629 struct list_head lcu;
630 struct dasd_uid uid;
631 enum pavtype pav;
632 char flags;
633 spinlock_t lock;
634 struct list_head grouplist;
635 struct list_head active_devices;
636 struct list_head inactive_devices;
637 struct dasd_unit_address_configuration *uac;
638 struct summary_unit_check_work_data suc_data;
639 struct read_uac_work_data ruac_data;
640 struct dasd_ccw_req *rsu_cqr;
641 struct completion lcu_setup;
642 };
643
644 struct alias_pav_group {
645 struct list_head group;
646 struct dasd_uid uid;
647 struct alias_lcu *lcu;
648 struct list_head baselist;
649 struct list_head aliaslist;
650 struct dasd_device *next;
651 };
652
653 struct dasd_conf_data {
654 struct dasd_ned neds[5];
655 u8 reserved[64];
656 struct dasd_gneq gneq;
657 } __packed;
658
659 struct dasd_eckd_private {
660 struct dasd_eckd_characteristics rdc_data;
661 u8 *conf_data;
662 int conf_len;
663
664
665 struct dasd_ned *ned;
666 struct dasd_sneq *sneq;
667 struct vd_sneq *vdsneq;
668 struct dasd_gneq *gneq;
669
670 struct eckd_count count_area[5];
671 int init_cqr_status;
672 int uses_cdl;
673 struct attrib_data_t attrib;
674 struct dasd_rssd_features features;
675 struct dasd_rssd_vsq vsq;
676 struct dasd_ext_pool_sum eps;
677 u32 real_cyl;
678
679
680 struct dasd_uid uid;
681 struct alias_pav_group *pavgroup;
682 struct alias_lcu *lcu;
683 int count;
684
685 u32 fcx_max_data;
686 char suc_reason;
687 };
688
689
690
691 int dasd_alias_make_device_known_to_lcu(struct dasd_device *);
692 void dasd_alias_disconnect_device_from_lcu(struct dasd_device *);
693 int dasd_alias_add_device(struct dasd_device *);
694 int dasd_alias_remove_device(struct dasd_device *);
695 struct dasd_device *dasd_alias_get_start_dev(struct dasd_device *);
696 void dasd_alias_handle_summary_unit_check(struct work_struct *);
697 void dasd_eckd_reset_ccw_to_base_io(struct dasd_ccw_req *);
698 int dasd_alias_update_add_device(struct dasd_device *);
699 #endif