aboutsummaryrefslogtreecommitdiff
path: root/arch/s390/include/asm/scsw.h
blob: 4af99cdaddf50436f13cb8fe4633a17acbca57b0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
/*
 *  Helper functions for scsw access.
 *
 *    Copyright IBM Corp. 2008, 2012
 *    Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
 */

#ifndef _ASM_S390_SCSW_H_
#define _ASM_S390_SCSW_H_

#include <linux/types.h>
#include <asm/css_chars.h>
#include <asm/cio.h>

/**
 * struct cmd_scsw - command-mode subchannel status word
 * @key: subchannel key
 * @sctl: suspend control
 * @eswf: esw format
 * @cc: deferred condition code
 * @fmt: format
 * @pfch: prefetch
 * @isic: initial-status interruption control
 * @alcc: address-limit checking control
 * @ssi: suppress-suspended interruption
 * @zcc: zero condition code
 * @ectl: extended control
 * @pno: path not operational
 * @res: reserved
 * @fctl: function control
 * @actl: activity control
 * @stctl: status control
 * @cpa: channel program address
 * @dstat: device status
 * @cstat: subchannel status
 * @count: residual count
 */
struct cmd_scsw {
	__u32 key  : 4;
	__u32 sctl : 1;
	__u32 eswf : 1;
	__u32 cc   : 2;
	__u32 fmt  : 1;
	__u32 pfch : 1;
	__u32 isic : 1;
	__u32 alcc : 1;
	__u32 ssi  : 1;
	__u32 zcc  : 1;
	__u32 ectl : 1;
	__u32 pno  : 1;
	__u32 res  : 1;
	__u32 fctl : 3;
	__u32 actl : 7;
	__u32 stctl : 5;
	__u32 cpa;
	__u32 dstat : 8;
	__u32 cstat : 8;
	__u32 count : 16;
} __attribute__ ((packed));

/**
 * struct tm_scsw - transport-mode subchannel status word
 * @key: subchannel key
 * @eswf: esw format
 * @cc: deferred condition code
 * @fmt: format
 * @x: IRB-format control
 * @q: interrogate-complete
 * @ectl: extended control
 * @pno: path not operational
 * @fctl: function control
 * @actl: activity control
 * @stctl: status control
 * @tcw: TCW address
 * @dstat: device status
 * @cstat: subchannel status
 * @fcxs: FCX status
 * @schxs: subchannel-extended status
 */
struct tm_scsw {
	u32 key:4;
	u32 :1;
	u32 eswf:1;
	u32 cc:2;
	u32 fmt:3;
	u32 x:1;
	u32 q:1;
	u32 :1;
	u32 ectl:1;
	u32 pno:1;
	u32 :1;
	u32 fctl:3;
	u32 actl:7;
	u32 stctl:5;
	u32 tcw;
	u32 dstat:8;
	u32 cstat:8;
	u32 fcxs:8;
	u32 schxs:8;
} __attribute__ ((packed));

/**
 * struct eadm_scsw - subchannel status word for eadm subchannels
 * @key: subchannel key
 * @eswf: esw format
 * @cc: deferred condition code
 * @ectl: extended control
 * @fctl: function control
 * @actl: activity control
 * @stctl: status control
 * @aob: AOB address
 * @dstat: device status
 * @cstat: subchannel status
 */
struct eadm_scsw {
	u32 key:4;
	u32:1;
	u32 eswf:1;
	u32 cc:2;
	u32:6;
	u32 ectl:1;
	u32:2;
	u32 fctl:3;
	u32 actl:7;
	u32 stctl:5;
	u32 aob;
	u32 dstat:8;
	u32 cstat:8;
	u32:16;
} __packed;

/**
 * union scsw - subchannel status word
 * @cmd: command-mode SCSW
 * @tm: transport-mode SCSW
 * @eadm: eadm SCSW
 */
union scsw {
	struct cmd_scsw cmd;
	struct tm_scsw tm;
	struct eadm_scsw eadm;
} __packed;

#define SCSW_FCTL_CLEAR_FUNC	 0x1
#define SCSW_FCTL_HALT_FUNC	 0x2
#define SCSW_FCTL_START_FUNC	 0x4

#define SCSW_ACTL_SUSPENDED	 0x1
#define SCSW_ACTL_DEVACT	 0x2
#define SCSW_ACTL_SCHACT	 0x4
#define SCSW_ACTL_CLEAR_PEND	 0x8
#define SCSW_ACTL_HALT_PEND	 0x10
#define SCSW_ACTL_START_PEND	 0x20
#define SCSW_ACTL_RESUME_PEND	 0x40

#define SCSW_STCTL_STATUS_PEND	 0x1
#define SCSW_STCTL_SEC_STATUS	 0x2
#define SCSW_STCTL_PRIM_STATUS	 0x4
#define SCSW_STCTL_INTER_STATUS	 0x8
#define SCSW_STCTL_ALERT_STATUS	 0x10

#define DEV_STAT_ATTENTION	 0x80
#define DEV_STAT_STAT_MOD	 0x40
#define DEV_STAT_CU_END		 0x20
#define DEV_STAT_BUSY		 0x10
#define DEV_STAT_CHN_END	 0x08
#define DEV_STAT_DEV_END	 0x04
#define DEV_STAT_UNIT_CHECK	 0x02
#define DEV_STAT_UNIT_EXCEP	 0x01

#define SCHN_STAT_PCI		 0x80
#define SCHN_STAT_INCORR_LEN	 0x40
#define SCHN_STAT_PROG_CHECK	 0x20
#define SCHN_STAT_PROT_CHECK	 0x10
#define SCHN_STAT_CHN_DATA_CHK	 0x08
#define SCHN_STAT_CHN_CTRL_CHK	 0x04
#define SCHN_STAT_INTF_CTRL_CHK	 0x02
#define SCHN_STAT_CHAIN_CHECK	 0x01

/*
 * architectured values for first sense byte
 */
#define SNS0_CMD_REJECT		0x80
#define SNS_CMD_REJECT		SNS0_CMD_REJEC
#define SNS0_INTERVENTION_REQ	0x40
#define SNS0_BUS_OUT_CHECK	0x20
#define SNS0_EQUIPMENT_CHECK	0x10
#define SNS0_DATA_CHECK		0x08
#define SNS0_OVERRUN		0x04
#define SNS0_INCOMPL_DOMAIN	0x01

/*
 * architectured values for second sense byte
 */
#define SNS1_PERM_ERR		0x80
#define SNS1_INV_TRACK_FORMAT	0x40
#define SNS1_EOC		0x20
#define SNS1_MESSAGE_TO_OPER	0x10
#define SNS1_NO_REC_FOUND	0x08
#define SNS1_FILE_PROTECTED	0x04
#define SNS1_WRITE_INHIBITED	0x02
#define SNS1_INPRECISE_END	0x01

/*
 * architectured values for third sense byte
 */
#define SNS2_REQ_INH_WRITE	0x80
#define SNS2_CORRECTABLE	0x40
#define SNS2_FIRST_LOG_ERR	0x20
#define SNS2_ENV_DATA_PRESENT	0x10
#define SNS2_INPRECISE_END	0x04

/**
 * scsw_is_tm - check for transport mode scsw
 * @scsw: pointer to scsw
 *
 * Return non-zero if the specified scsw is a transport mode scsw, zero
 * otherwise.
 */
static inline int scsw_is_tm(union scsw *scsw)
{
	return css_general_characteristics.fcx && (scsw->tm.x == 1);
}

/**
 * scsw_key - return scsw key field
 * @scsw: pointer to scsw
 *
 * Return the value of the key field of the specified scsw, regardless of
 * whether it is a transport mode or command mode scsw.
 */
static inline u32 scsw_key(union scsw *scsw)
{
	if (scsw_is_tm(scsw))
		return scsw->tm.key;
	else
		return scsw->cmd.key;
}

/**
 * scsw_eswf - return scsw eswf field
 * @scsw: pointer to scsw
 *
 * Return the value of the eswf field of the specified scsw, regardless of
 * whether it is a transport mode or command mode scsw.
 */
static inline u32 scsw_eswf(union scsw *scsw)
{
	if (scsw_is_tm(scsw))
		return scsw->tm.eswf;
	else
		return scsw->cmd.eswf;
}

/**
 * scsw_cc - return scsw cc field
 * @scsw: pointer to scsw
 *
 * Return the value of the cc field of the specified scsw, regardless of
 * whether it is a transport mode or command mode scsw.
 */
static inline u32 scsw_cc(union scsw *scsw)
{
	if (scsw_is_tm(scsw))
		return scsw->tm.cc;
	else
		return scsw->cmd.cc;
}

/**
 * scsw_ectl - return scsw ectl field
 * @scsw: pointer to scsw
 *
 * Return the value of the ectl field of the specified scsw, regardless of
 * whether it is a transport mode or command mode scsw.
 */
static inline u32 scsw_ectl(union scsw *scsw)
{
	if (scsw_is_tm(scsw))
		return scsw->tm.ectl;
	else
		return scsw->cmd.ectl;
}

/**
 * scsw_pno - return scsw pno field
 * @scsw: pointer to scsw
 *
 * Return the value of the pno field of the specified scsw, regardless of
 * whether it is a transport mode or command mode scsw.
 */
static inline u32 scsw_pno(union scsw *scsw)
{
	if (scsw_is_tm(scsw))
		return scsw->tm.pno;
	else
		return scsw->cmd.pno;
}

/**
 * scsw_fctl - return scsw fctl field
 * @scsw: pointer to scsw
 *
 * Return the value of the fctl field of the specified scsw, regardless of
 * whether it is a transport mode or command mode scsw.
 */
static inline u32 scsw_fctl(union scsw *scsw)
{
	if (scsw_is_tm(scsw))
		return scsw->tm.fctl;
	else
		return scsw->cmd.fctl;
}

/**
 * scsw_actl - return scsw actl field
 * @scsw: pointer to scsw
 *
 * Return the value of the actl field of the specified scsw, regardless of
 * whether it is a transport mode or command mode scsw.
 */
static inline u32 scsw_actl(union scsw *scsw)
{
	if (scsw_is_tm(scsw))
		return scsw->tm.actl;
	else
		return scsw->cmd.actl;
}

/**
 * scsw_stctl - return scsw stctl field
 * @scsw: pointer to scsw
 *
 * Return the value of the stctl field of the specified scsw, regardless of
 * whether it is a transport mode or command mode scsw.
 */
static inline u32 scsw_stctl(union scsw *scsw)
{
	if (scsw_is_tm(scsw))
		return scsw->tm.stctl;
	else
		return scsw->cmd.stctl;
}

/**
 * scsw_dstat - return scsw dstat field
 * @scsw: pointer to scsw
 *
 * Return the value of the dstat field of the specified scsw, regardless of
 * whether it is a transport mode or command mode scsw.
 */
static inline u32 scsw_dstat(union scsw *scsw)
{
	if (scsw_is_tm(scsw))
		return scsw->tm.dstat;
	else
		return scsw->cmd.dstat;
}

/**
 * scsw_cstat - return scsw cstat field
 * @scsw: pointer to scsw
 *
 * Return the value of the cstat field of the specified scsw, regardless of
 * whether it is a transport mode or command mode scsw.
 */
static inline u32 scsw_cstat(union scsw *scsw)
{
	if (scsw_is_tm(scsw))
		return scsw->tm.cstat;
	else
		return scsw->cmd.cstat;
}

/**
 * scsw_cmd_is_valid_key - check key field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the key field of the specified command mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_cmd_is_valid_key(union scsw *scsw)
{
	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
}

/**
 * scsw_cmd_is_valid_sctl - check fctl field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the fctl field of the specified command mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_cmd_is_valid_sctl(union scsw *scsw)
{
	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
}

/**
 * scsw_cmd_is_valid_eswf - check eswf field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the eswf field of the specified command mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_cmd_is_valid_eswf(union scsw *scsw)
{
	return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND);
}

/**
 * scsw_cmd_is_valid_cc - check cc field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the cc field of the specified command mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_cmd_is_valid_cc(union scsw *scsw)
{
	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC) &&
	       (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND);
}

/**
 * scsw_cmd_is_valid_fmt - check fmt field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the fmt field of the specified command mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_cmd_is_valid_fmt(union scsw *scsw)
{
	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
}

/**
 * scsw_cmd_is_valid_pfch - check pfch field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the pfch field of the specified command mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_cmd_is_valid_pfch(union scsw *scsw)
{
	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
}

/**
 * scsw_cmd_is_valid_isic - check isic field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the isic field of the specified command mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_cmd_is_valid_isic(union scsw *scsw)
{
	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
}

/**
 * scsw_cmd_is_valid_alcc - check alcc field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the alcc field of the specified command mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_cmd_is_valid_alcc(union scsw *scsw)
{
	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
}

/**
 * scsw_cmd_is_valid_ssi - check ssi field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the ssi field of the specified command mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_cmd_is_valid_ssi(union scsw *scsw)
{
	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
}

/**
 * scsw_cmd_is_valid_zcc - check zcc field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the zcc field of the specified command mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_cmd_is_valid_zcc(union scsw *scsw)
{
	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC) &&
	       (scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS);
}

/**
 * scsw_cmd_is_valid_ectl - check ectl field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the ectl field of the specified command mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_cmd_is_valid_ectl(union scsw *scsw)
{
	return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) &&
	       !(scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS) &&
	       (scsw->cmd.stctl & SCSW_STCTL_ALERT_STATUS);
}

/**
 * scsw_cmd_is_valid_pno - check pno field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the pno field of the specified command mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_cmd_is_valid_pno(union scsw *scsw)
{
	return (scsw->cmd.fctl != 0) &&
	       (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) &&
	       (!(scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS) ||
		 ((scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS) &&
		  (scsw->cmd.actl & SCSW_ACTL_SUSPENDED)));
}

/**
 * scsw_cmd_is_valid_fctl - check fctl field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the fctl field of the specified command mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_cmd_is_valid_fctl(union scsw *scsw)
{
	/* Only valid if pmcw.dnv == 1*/
	return 1;
}

/**
 * scsw_cmd_is_valid_actl - check actl field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the actl field of the specified command mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_cmd_is_valid_actl(union scsw *scsw)
{
	/* Only valid if pmcw.dnv == 1*/
	return 1;
}

/**
 * scsw_cmd_is_valid_stctl - check stctl field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the stctl field of the specified command mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_cmd_is_valid_stctl(union scsw *scsw)
{
	/* Only valid if pmcw.dnv == 1*/
	return 1;
}

/**
 * scsw_cmd_is_valid_dstat - check dstat field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the dstat field of the specified command mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_cmd_is_valid_dstat(union scsw *scsw)
{
	return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) &&
	       (scsw->cmd.cc != 3);
}

/**
 * scsw_cmd_is_valid_cstat - check cstat field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the cstat field of the specified command mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_cmd_is_valid_cstat(union scsw *scsw)
{
	return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) &&
	       (scsw->cmd.cc != 3);
}

/**
 * scsw_tm_is_valid_key - check key field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the key field of the specified transport mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_tm_is_valid_key(union scsw *scsw)
{
	return (scsw->tm.fctl & SCSW_FCTL_START_FUNC);
}

/**
 * scsw_tm_is_valid_eswf - check eswf field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the eswf field of the specified transport mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_tm_is_valid_eswf(union scsw *scsw)
{
	return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND);
}

/**
 * scsw_tm_is_valid_cc - check cc field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the cc field of the specified transport mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_tm_is_valid_cc(union scsw *scsw)
{
	return (scsw->tm.fctl & SCSW_FCTL_START_FUNC) &&
	       (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND);
}

/**
 * scsw_tm_is_valid_fmt - check fmt field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the fmt field of the specified transport mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_tm_is_valid_fmt(union scsw *scsw)
{
	return 1;
}

/**
 * scsw_tm_is_valid_x - check x field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the x field of the specified transport mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_tm_is_valid_x(union scsw *scsw)
{
	return 1;
}

/**
 * scsw_tm_is_valid_q - check q field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the q field of the specified transport mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_tm_is_valid_q(union scsw *scsw)
{
	return 1;
}

/**
 * scsw_tm_is_valid_ectl - check ectl field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the ectl field of the specified transport mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_tm_is_valid_ectl(union scsw *scsw)
{
	return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) &&
	       !(scsw->tm.stctl & SCSW_STCTL_INTER_STATUS) &&
	       (scsw->tm.stctl & SCSW_STCTL_ALERT_STATUS);
}

/**
 * scsw_tm_is_valid_pno - check pno field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the pno field of the specified transport mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_tm_is_valid_pno(union scsw *scsw)
{
	return (scsw->tm.fctl != 0) &&
	       (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) &&
	       (!(scsw->tm.stctl & SCSW_STCTL_INTER_STATUS) ||
		 ((scsw->tm.stctl & SCSW_STCTL_INTER_STATUS) &&
		  (scsw->tm.actl & SCSW_ACTL_SUSPENDED)));
}

/**
 * scsw_tm_is_valid_fctl - check fctl field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the fctl field of the specified transport mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_tm_is_valid_fctl(union scsw *scsw)
{
	/* Only valid if pmcw.dnv == 1*/
	return 1;
}

/**
 * scsw_tm_is_valid_actl - check actl field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the actl field of the specified transport mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_tm_is_valid_actl(union scsw *scsw)
{
	/* Only valid if pmcw.dnv == 1*/
	return 1;
}

/**
 * scsw_tm_is_valid_stctl - check stctl field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the stctl field of the specified transport mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_tm_is_valid_stctl(union scsw *scsw)
{
	/* Only valid if pmcw.dnv == 1*/
	return 1;
}

/**
 * scsw_tm_is_valid_dstat - check dstat field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the dstat field of the specified transport mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_tm_is_valid_dstat(union scsw *scsw)
{
	return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) &&
	       (scsw->tm.cc != 3);
}

/**
 * scsw_tm_is_valid_cstat - check cstat field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the cstat field of the specified transport mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_tm_is_valid_cstat(union scsw *scsw)
{
	return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) &&
	       (scsw->tm.cc != 3);
}

/**
 * scsw_tm_is_valid_fcxs - check fcxs field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the fcxs field of the specified transport mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_tm_is_valid_fcxs(union scsw *scsw)
{
	return 1;
}

/**
 * scsw_tm_is_valid_schxs - check schxs field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the schxs field of the specified transport mode scsw is
 * valid, zero otherwise.
 */
static inline int scsw_tm_is_valid_schxs(union scsw *scsw)
{
	return (scsw->tm.cstat & (SCHN_STAT_PROG_CHECK |
				  SCHN_STAT_INTF_CTRL_CHK |
				  SCHN_STAT_PROT_CHECK |
				  SCHN_STAT_CHN_DATA_CHK));
}

/**
 * scsw_is_valid_actl - check actl field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the actl field of the specified scsw is valid,
 * regardless of whether it is a transport mode or command mode scsw.
 * Return zero if the field does not contain a valid value.
 */
static inline int scsw_is_valid_actl(union scsw *scsw)
{
	if (scsw_is_tm(scsw))
		return scsw_tm_is_valid_actl(scsw);
	else
		return scsw_cmd_is_valid_actl(scsw);
}

/**
 * scsw_is_valid_cc - check cc field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the cc field of the specified scsw is valid,
 * regardless of whether it is a transport mode or command mode scsw.
 * Return zero if the field does not contain a valid value.
 */
static inline int scsw_is_valid_cc(union scsw *scsw)
{
	if (scsw_is_tm(scsw))
		return scsw_tm_is_valid_cc(scsw);
	else
		return scsw_cmd_is_valid_cc(scsw);
}

/**
 * scsw_is_valid_cstat - check cstat field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the cstat field of the specified scsw is valid,
 * regardless of whether it is a transport mode or command mode scsw.
 * Return zero if the field does not contain a valid value.
 */
static inline int scsw_is_valid_cstat(union scsw *scsw)
{
	if (scsw_is_tm(scsw))
		return scsw_tm_is_valid_cstat(scsw);
	else
		return scsw_cmd_is_valid_cstat(scsw);
}

/**
 * scsw_is_valid_dstat - check dstat field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the dstat field of the specified scsw is valid,
 * regardless of whether it is a transport mode or command mode scsw.
 * Return zero if the field does not contain a valid value.
 */
static inline int scsw_is_valid_dstat(union scsw *scsw)
{
	if (scsw_is_tm(scsw))
		return scsw_tm_is_valid_dstat(scsw);
	else
		return scsw_cmd_is_valid_dstat(scsw);
}

/**
 * scsw_is_valid_ectl - check ectl field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the ectl field of the specified scsw is valid,
 * regardless of whether it is a transport mode or command mode scsw.
 * Return zero if the field does not contain a valid value.
 */
static inline int scsw_is_valid_ectl(union scsw *scsw)
{
	if (scsw_is_tm(scsw))
		return scsw_tm_is_valid_ectl(scsw);
	else
		return scsw_cmd_is_valid_ectl(scsw);
}

/**
 * scsw_is_valid_eswf - check eswf field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the eswf field of the specified scsw is valid,
 * regardless of whether it is a transport mode or command mode scsw.
 * Return zero if the field does not contain a valid value.
 */
static inline int scsw_is_valid_eswf(union scsw *scsw)
{
	if (scsw_is_tm(scsw))
		return scsw_tm_is_valid_eswf(scsw);
	else
		return scsw_cmd_is_valid_eswf(scsw);
}

/**
 * scsw_is_valid_fctl - check fctl field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the fctl field of the specified scsw is valid,
 * regardless of whether it is a transport mode or command mode scsw.
 * Return zero if the field does not contain a valid value.
 */
static inline int scsw_is_valid_fctl(union scsw *scsw)
{
	if (scsw_is_tm(scsw))
		return scsw_tm_is_valid_fctl(scsw);
	else
		return scsw_cmd_is_valid_fctl(scsw);
}

/**
 * scsw_is_valid_key - check key field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the key field of the specified scsw is valid,
 * regardless of whether it is a transport mode or command mode scsw.
 * Return zero if the field does not contain a valid value.
 */
static inline int scsw_is_valid_key(union scsw *scsw)
{
	if (scsw_is_tm(scsw))
		return scsw_tm_is_valid_key(scsw);
	else
		return scsw_cmd_is_valid_key(scsw);
}

/**
 * scsw_is_valid_pno - check pno field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the pno field of the specified scsw is valid,
 * regardless of whether it is a transport mode or command mode scsw.
 * Return zero if the field does not contain a valid value.
 */
static inline int scsw_is_valid_pno(union scsw *scsw)
{
	if (scsw_is_tm(scsw))
		return scsw_tm_is_valid_pno(scsw);
	else
		return scsw_cmd_is_valid_pno(scsw);
}

/**
 * scsw_is_valid_stctl - check stctl field validity
 * @scsw: pointer to scsw
 *
 * Return non-zero if the stctl field of the specified scsw is valid,
 * regardless of whether it is a transport mode or command mode scsw.
 * Return zero if the field does not contain a valid value.
 */
static inline int scsw_is_valid_stctl(union scsw *scsw)
{
	if (scsw_is_tm(scsw))
		return scsw_tm_is_valid_stctl(scsw);
	else
		return scsw_cmd_is_valid_stctl(scsw);
}

/**
 * scsw_cmd_is_solicited - check for solicited scsw
 * @scsw: pointer to scsw
 *
 * Return non-zero if the command mode scsw indicates that the associated
 * status condition is solicited, zero if it is unsolicited.
 */
static inline int scsw_cmd_is_solicited(union scsw *scsw)
{
	return (scsw->cmd.cc != 0) || (scsw->cmd.stctl !=
		(SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS));
}

/**
 * scsw_tm_is_solicited - check for solicited scsw
 * @scsw: pointer to scsw
 *
 * Return non-zero if the transport mode scsw indicates that the associated
 * status condition is solicited, zero if it is unsolicited.
 */
static inline int scsw_tm_is_solicited(union scsw *scsw)
{
	return (scsw->tm.cc != 0) || (scsw->tm.stctl !=
		(SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS));
}

/**
 * scsw_is_solicited - check for solicited scsw
 * @scsw: pointer to scsw
 *
 * Return non-zero if the transport or command mode scsw indicates that the
 * associated status condition is solicited, zero if it is unsolicited.
 */
static inline int scsw_is_solicited(union scsw *scsw)
{
	if (scsw_is_tm(scsw))
		return scsw_tm_is_solicited(scsw);
	else
		return scsw_cmd_is_solicited(scsw);
}

#endif /* _ASM_S390_SCSW_H_ */