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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
23d805b6 PO |
2 | /* |
3 | * Helper functions for scsw access. | |
4 | * | |
d2fc439b | 5 | * Copyright IBM Corp. 2008, 2012 |
23d805b6 PO |
6 | * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com> |
7 | */ | |
8 | ||
62733e5a HC |
9 | #ifndef _ASM_S390_SCSW_H_ |
10 | #define _ASM_S390_SCSW_H_ | |
11 | ||
23d805b6 | 12 | #include <linux/types.h> |
382b7366 | 13 | #include <asm/css_chars.h> |
23d805b6 | 14 | #include <asm/cio.h> |
62733e5a HC |
15 | |
16 | /** | |
17 | * struct cmd_scsw - command-mode subchannel status word | |
18 | * @key: subchannel key | |
19 | * @sctl: suspend control | |
20 | * @eswf: esw format | |
21 | * @cc: deferred condition code | |
22 | * @fmt: format | |
23 | * @pfch: prefetch | |
24 | * @isic: initial-status interruption control | |
25 | * @alcc: address-limit checking control | |
26 | * @ssi: suppress-suspended interruption | |
27 | * @zcc: zero condition code | |
28 | * @ectl: extended control | |
29 | * @pno: path not operational | |
30 | * @res: reserved | |
31 | * @fctl: function control | |
32 | * @actl: activity control | |
33 | * @stctl: status control | |
34 | * @cpa: channel program address | |
35 | * @dstat: device status | |
36 | * @cstat: subchannel status | |
37 | * @count: residual count | |
38 | */ | |
39 | struct cmd_scsw { | |
40 | __u32 key : 4; | |
41 | __u32 sctl : 1; | |
42 | __u32 eswf : 1; | |
43 | __u32 cc : 2; | |
44 | __u32 fmt : 1; | |
45 | __u32 pfch : 1; | |
46 | __u32 isic : 1; | |
47 | __u32 alcc : 1; | |
48 | __u32 ssi : 1; | |
49 | __u32 zcc : 1; | |
50 | __u32 ectl : 1; | |
51 | __u32 pno : 1; | |
52 | __u32 res : 1; | |
53 | __u32 fctl : 3; | |
54 | __u32 actl : 7; | |
55 | __u32 stctl : 5; | |
56 | __u32 cpa; | |
57 | __u32 dstat : 8; | |
58 | __u32 cstat : 8; | |
59 | __u32 count : 16; | |
60 | } __attribute__ ((packed)); | |
61 | ||
62 | /** | |
63 | * struct tm_scsw - transport-mode subchannel status word | |
64 | * @key: subchannel key | |
65 | * @eswf: esw format | |
66 | * @cc: deferred condition code | |
67 | * @fmt: format | |
68 | * @x: IRB-format control | |
69 | * @q: interrogate-complete | |
70 | * @ectl: extended control | |
71 | * @pno: path not operational | |
72 | * @fctl: function control | |
73 | * @actl: activity control | |
74 | * @stctl: status control | |
75 | * @tcw: TCW address | |
76 | * @dstat: device status | |
77 | * @cstat: subchannel status | |
78 | * @fcxs: FCX status | |
79 | * @schxs: subchannel-extended status | |
80 | */ | |
81 | struct tm_scsw { | |
82 | u32 key:4; | |
83 | u32 :1; | |
84 | u32 eswf:1; | |
85 | u32 cc:2; | |
86 | u32 fmt:3; | |
87 | u32 x:1; | |
88 | u32 q:1; | |
89 | u32 :1; | |
90 | u32 ectl:1; | |
91 | u32 pno:1; | |
92 | u32 :1; | |
93 | u32 fctl:3; | |
94 | u32 actl:7; | |
95 | u32 stctl:5; | |
96 | u32 tcw; | |
97 | u32 dstat:8; | |
98 | u32 cstat:8; | |
99 | u32 fcxs:8; | |
a521b048 SH |
100 | u32 ifob:1; |
101 | u32 sesq:7; | |
62733e5a HC |
102 | } __attribute__ ((packed)); |
103 | ||
d2fc439b SO |
104 | /** |
105 | * struct eadm_scsw - subchannel status word for eadm subchannels | |
106 | * @key: subchannel key | |
107 | * @eswf: esw format | |
108 | * @cc: deferred condition code | |
109 | * @ectl: extended control | |
110 | * @fctl: function control | |
111 | * @actl: activity control | |
112 | * @stctl: status control | |
113 | * @aob: AOB address | |
114 | * @dstat: device status | |
115 | * @cstat: subchannel status | |
116 | */ | |
117 | struct eadm_scsw { | |
118 | u32 key:4; | |
119 | u32:1; | |
120 | u32 eswf:1; | |
121 | u32 cc:2; | |
122 | u32:6; | |
123 | u32 ectl:1; | |
124 | u32:2; | |
125 | u32 fctl:3; | |
126 | u32 actl:7; | |
127 | u32 stctl:5; | |
128 | u32 aob; | |
129 | u32 dstat:8; | |
130 | u32 cstat:8; | |
131 | u32:16; | |
132 | } __packed; | |
133 | ||
62733e5a HC |
134 | /** |
135 | * union scsw - subchannel status word | |
136 | * @cmd: command-mode SCSW | |
137 | * @tm: transport-mode SCSW | |
d2fc439b | 138 | * @eadm: eadm SCSW |
62733e5a HC |
139 | */ |
140 | union scsw { | |
141 | struct cmd_scsw cmd; | |
142 | struct tm_scsw tm; | |
d2fc439b SO |
143 | struct eadm_scsw eadm; |
144 | } __packed; | |
62733e5a HC |
145 | |
146 | #define SCSW_FCTL_CLEAR_FUNC 0x1 | |
147 | #define SCSW_FCTL_HALT_FUNC 0x2 | |
148 | #define SCSW_FCTL_START_FUNC 0x4 | |
149 | ||
150 | #define SCSW_ACTL_SUSPENDED 0x1 | |
151 | #define SCSW_ACTL_DEVACT 0x2 | |
152 | #define SCSW_ACTL_SCHACT 0x4 | |
153 | #define SCSW_ACTL_CLEAR_PEND 0x8 | |
154 | #define SCSW_ACTL_HALT_PEND 0x10 | |
155 | #define SCSW_ACTL_START_PEND 0x20 | |
156 | #define SCSW_ACTL_RESUME_PEND 0x40 | |
157 | ||
158 | #define SCSW_STCTL_STATUS_PEND 0x1 | |
159 | #define SCSW_STCTL_SEC_STATUS 0x2 | |
160 | #define SCSW_STCTL_PRIM_STATUS 0x4 | |
161 | #define SCSW_STCTL_INTER_STATUS 0x8 | |
162 | #define SCSW_STCTL_ALERT_STATUS 0x10 | |
163 | ||
164 | #define DEV_STAT_ATTENTION 0x80 | |
165 | #define DEV_STAT_STAT_MOD 0x40 | |
166 | #define DEV_STAT_CU_END 0x20 | |
167 | #define DEV_STAT_BUSY 0x10 | |
168 | #define DEV_STAT_CHN_END 0x08 | |
169 | #define DEV_STAT_DEV_END 0x04 | |
170 | #define DEV_STAT_UNIT_CHECK 0x02 | |
171 | #define DEV_STAT_UNIT_EXCEP 0x01 | |
172 | ||
173 | #define SCHN_STAT_PCI 0x80 | |
174 | #define SCHN_STAT_INCORR_LEN 0x40 | |
175 | #define SCHN_STAT_PROG_CHECK 0x20 | |
176 | #define SCHN_STAT_PROT_CHECK 0x10 | |
177 | #define SCHN_STAT_CHN_DATA_CHK 0x08 | |
178 | #define SCHN_STAT_CHN_CTRL_CHK 0x04 | |
179 | #define SCHN_STAT_INTF_CTRL_CHK 0x02 | |
180 | #define SCHN_STAT_CHAIN_CHECK 0x01 | |
181 | ||
a521b048 SH |
182 | #define SCSW_SESQ_DEV_NOFCX 3 |
183 | #define SCSW_SESQ_PATH_NOFCX 4 | |
184 | ||
62733e5a HC |
185 | /* |
186 | * architectured values for first sense byte | |
187 | */ | |
188 | #define SNS0_CMD_REJECT 0x80 | |
189 | #define SNS_CMD_REJECT SNS0_CMD_REJEC | |
190 | #define SNS0_INTERVENTION_REQ 0x40 | |
191 | #define SNS0_BUS_OUT_CHECK 0x20 | |
192 | #define SNS0_EQUIPMENT_CHECK 0x10 | |
193 | #define SNS0_DATA_CHECK 0x08 | |
194 | #define SNS0_OVERRUN 0x04 | |
195 | #define SNS0_INCOMPL_DOMAIN 0x01 | |
196 | ||
197 | /* | |
198 | * architectured values for second sense byte | |
199 | */ | |
200 | #define SNS1_PERM_ERR 0x80 | |
201 | #define SNS1_INV_TRACK_FORMAT 0x40 | |
202 | #define SNS1_EOC 0x20 | |
203 | #define SNS1_MESSAGE_TO_OPER 0x10 | |
204 | #define SNS1_NO_REC_FOUND 0x08 | |
205 | #define SNS1_FILE_PROTECTED 0x04 | |
206 | #define SNS1_WRITE_INHIBITED 0x02 | |
207 | #define SNS1_INPRECISE_END 0x01 | |
208 | ||
209 | /* | |
210 | * architectured values for third sense byte | |
211 | */ | |
212 | #define SNS2_REQ_INH_WRITE 0x80 | |
213 | #define SNS2_CORRECTABLE 0x40 | |
214 | #define SNS2_FIRST_LOG_ERR 0x20 | |
215 | #define SNS2_ENV_DATA_PRESENT 0x10 | |
216 | #define SNS2_INPRECISE_END 0x04 | |
23d805b6 PO |
217 | |
218 | /** | |
219 | * scsw_is_tm - check for transport mode scsw | |
220 | * @scsw: pointer to scsw | |
221 | * | |
222 | * Return non-zero if the specified scsw is a transport mode scsw, zero | |
223 | * otherwise. | |
224 | */ | |
62733e5a | 225 | static inline int scsw_is_tm(union scsw *scsw) |
23d805b6 PO |
226 | { |
227 | return css_general_characteristics.fcx && (scsw->tm.x == 1); | |
228 | } | |
23d805b6 PO |
229 | |
230 | /** | |
231 | * scsw_key - return scsw key field | |
232 | * @scsw: pointer to scsw | |
233 | * | |
234 | * Return the value of the key field of the specified scsw, regardless of | |
235 | * whether it is a transport mode or command mode scsw. | |
236 | */ | |
62733e5a | 237 | static inline u32 scsw_key(union scsw *scsw) |
23d805b6 PO |
238 | { |
239 | if (scsw_is_tm(scsw)) | |
240 | return scsw->tm.key; | |
241 | else | |
242 | return scsw->cmd.key; | |
243 | } | |
23d805b6 PO |
244 | |
245 | /** | |
246 | * scsw_eswf - return scsw eswf field | |
247 | * @scsw: pointer to scsw | |
248 | * | |
249 | * Return the value of the eswf field of the specified scsw, regardless of | |
250 | * whether it is a transport mode or command mode scsw. | |
251 | */ | |
62733e5a | 252 | static inline u32 scsw_eswf(union scsw *scsw) |
23d805b6 PO |
253 | { |
254 | if (scsw_is_tm(scsw)) | |
255 | return scsw->tm.eswf; | |
256 | else | |
257 | return scsw->cmd.eswf; | |
258 | } | |
23d805b6 PO |
259 | |
260 | /** | |
261 | * scsw_cc - return scsw cc field | |
262 | * @scsw: pointer to scsw | |
263 | * | |
264 | * Return the value of the cc field of the specified scsw, regardless of | |
265 | * whether it is a transport mode or command mode scsw. | |
266 | */ | |
62733e5a | 267 | static inline u32 scsw_cc(union scsw *scsw) |
23d805b6 PO |
268 | { |
269 | if (scsw_is_tm(scsw)) | |
270 | return scsw->tm.cc; | |
271 | else | |
272 | return scsw->cmd.cc; | |
273 | } | |
23d805b6 PO |
274 | |
275 | /** | |
276 | * scsw_ectl - return scsw ectl field | |
277 | * @scsw: pointer to scsw | |
278 | * | |
279 | * Return the value of the ectl field of the specified scsw, regardless of | |
280 | * whether it is a transport mode or command mode scsw. | |
281 | */ | |
62733e5a | 282 | static inline u32 scsw_ectl(union scsw *scsw) |
23d805b6 PO |
283 | { |
284 | if (scsw_is_tm(scsw)) | |
285 | return scsw->tm.ectl; | |
286 | else | |
287 | return scsw->cmd.ectl; | |
288 | } | |
23d805b6 PO |
289 | |
290 | /** | |
291 | * scsw_pno - return scsw pno field | |
292 | * @scsw: pointer to scsw | |
293 | * | |
294 | * Return the value of the pno field of the specified scsw, regardless of | |
295 | * whether it is a transport mode or command mode scsw. | |
296 | */ | |
62733e5a | 297 | static inline u32 scsw_pno(union scsw *scsw) |
23d805b6 PO |
298 | { |
299 | if (scsw_is_tm(scsw)) | |
300 | return scsw->tm.pno; | |
301 | else | |
302 | return scsw->cmd.pno; | |
303 | } | |
23d805b6 PO |
304 | |
305 | /** | |
306 | * scsw_fctl - return scsw fctl field | |
307 | * @scsw: pointer to scsw | |
308 | * | |
309 | * Return the value of the fctl field of the specified scsw, regardless of | |
310 | * whether it is a transport mode or command mode scsw. | |
311 | */ | |
62733e5a | 312 | static inline u32 scsw_fctl(union scsw *scsw) |
23d805b6 PO |
313 | { |
314 | if (scsw_is_tm(scsw)) | |
315 | return scsw->tm.fctl; | |
316 | else | |
317 | return scsw->cmd.fctl; | |
318 | } | |
23d805b6 PO |
319 | |
320 | /** | |
321 | * scsw_actl - return scsw actl field | |
322 | * @scsw: pointer to scsw | |
323 | * | |
324 | * Return the value of the actl field of the specified scsw, regardless of | |
325 | * whether it is a transport mode or command mode scsw. | |
326 | */ | |
62733e5a | 327 | static inline u32 scsw_actl(union scsw *scsw) |
23d805b6 PO |
328 | { |
329 | if (scsw_is_tm(scsw)) | |
330 | return scsw->tm.actl; | |
331 | else | |
332 | return scsw->cmd.actl; | |
333 | } | |
23d805b6 PO |
334 | |
335 | /** | |
336 | * scsw_stctl - return scsw stctl field | |
337 | * @scsw: pointer to scsw | |
338 | * | |
339 | * Return the value of the stctl field of the specified scsw, regardless of | |
340 | * whether it is a transport mode or command mode scsw. | |
341 | */ | |
62733e5a | 342 | static inline u32 scsw_stctl(union scsw *scsw) |
23d805b6 PO |
343 | { |
344 | if (scsw_is_tm(scsw)) | |
345 | return scsw->tm.stctl; | |
346 | else | |
347 | return scsw->cmd.stctl; | |
348 | } | |
23d805b6 PO |
349 | |
350 | /** | |
351 | * scsw_dstat - return scsw dstat field | |
352 | * @scsw: pointer to scsw | |
353 | * | |
354 | * Return the value of the dstat field of the specified scsw, regardless of | |
355 | * whether it is a transport mode or command mode scsw. | |
356 | */ | |
62733e5a | 357 | static inline u32 scsw_dstat(union scsw *scsw) |
23d805b6 PO |
358 | { |
359 | if (scsw_is_tm(scsw)) | |
360 | return scsw->tm.dstat; | |
361 | else | |
362 | return scsw->cmd.dstat; | |
363 | } | |
23d805b6 PO |
364 | |
365 | /** | |
366 | * scsw_cstat - return scsw cstat field | |
367 | * @scsw: pointer to scsw | |
368 | * | |
369 | * Return the value of the cstat field of the specified scsw, regardless of | |
370 | * whether it is a transport mode or command mode scsw. | |
371 | */ | |
62733e5a | 372 | static inline u32 scsw_cstat(union scsw *scsw) |
23d805b6 PO |
373 | { |
374 | if (scsw_is_tm(scsw)) | |
375 | return scsw->tm.cstat; | |
376 | else | |
377 | return scsw->cmd.cstat; | |
378 | } | |
23d805b6 PO |
379 | |
380 | /** | |
381 | * scsw_cmd_is_valid_key - check key field validity | |
382 | * @scsw: pointer to scsw | |
383 | * | |
384 | * Return non-zero if the key field of the specified command mode scsw is | |
385 | * valid, zero otherwise. | |
386 | */ | |
62733e5a | 387 | static inline int scsw_cmd_is_valid_key(union scsw *scsw) |
23d805b6 PO |
388 | { |
389 | return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC); | |
390 | } | |
23d805b6 PO |
391 | |
392 | /** | |
393 | * scsw_cmd_is_valid_sctl - check fctl field validity | |
394 | * @scsw: pointer to scsw | |
395 | * | |
396 | * Return non-zero if the fctl field of the specified command mode scsw is | |
397 | * valid, zero otherwise. | |
398 | */ | |
62733e5a | 399 | static inline int scsw_cmd_is_valid_sctl(union scsw *scsw) |
23d805b6 PO |
400 | { |
401 | return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC); | |
402 | } | |
23d805b6 PO |
403 | |
404 | /** | |
405 | * scsw_cmd_is_valid_eswf - check eswf field validity | |
406 | * @scsw: pointer to scsw | |
407 | * | |
408 | * Return non-zero if the eswf field of the specified command mode scsw is | |
409 | * valid, zero otherwise. | |
410 | */ | |
62733e5a | 411 | static inline int scsw_cmd_is_valid_eswf(union scsw *scsw) |
23d805b6 PO |
412 | { |
413 | return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND); | |
414 | } | |
23d805b6 PO |
415 | |
416 | /** | |
417 | * scsw_cmd_is_valid_cc - check cc field validity | |
418 | * @scsw: pointer to scsw | |
419 | * | |
420 | * Return non-zero if the cc field of the specified command mode scsw is | |
421 | * valid, zero otherwise. | |
422 | */ | |
62733e5a | 423 | static inline int scsw_cmd_is_valid_cc(union scsw *scsw) |
23d805b6 PO |
424 | { |
425 | return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC) && | |
426 | (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND); | |
427 | } | |
23d805b6 PO |
428 | |
429 | /** | |
430 | * scsw_cmd_is_valid_fmt - check fmt field validity | |
431 | * @scsw: pointer to scsw | |
432 | * | |
433 | * Return non-zero if the fmt field of the specified command mode scsw is | |
434 | * valid, zero otherwise. | |
435 | */ | |
62733e5a | 436 | static inline int scsw_cmd_is_valid_fmt(union scsw *scsw) |
23d805b6 PO |
437 | { |
438 | return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC); | |
439 | } | |
23d805b6 PO |
440 | |
441 | /** | |
442 | * scsw_cmd_is_valid_pfch - check pfch field validity | |
443 | * @scsw: pointer to scsw | |
444 | * | |
445 | * Return non-zero if the pfch field of the specified command mode scsw is | |
446 | * valid, zero otherwise. | |
447 | */ | |
62733e5a | 448 | static inline int scsw_cmd_is_valid_pfch(union scsw *scsw) |
23d805b6 PO |
449 | { |
450 | return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC); | |
451 | } | |
23d805b6 PO |
452 | |
453 | /** | |
454 | * scsw_cmd_is_valid_isic - check isic field validity | |
455 | * @scsw: pointer to scsw | |
456 | * | |
457 | * Return non-zero if the isic field of the specified command mode scsw is | |
458 | * valid, zero otherwise. | |
459 | */ | |
62733e5a | 460 | static inline int scsw_cmd_is_valid_isic(union scsw *scsw) |
23d805b6 PO |
461 | { |
462 | return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC); | |
463 | } | |
23d805b6 PO |
464 | |
465 | /** | |
466 | * scsw_cmd_is_valid_alcc - check alcc field validity | |
467 | * @scsw: pointer to scsw | |
468 | * | |
469 | * Return non-zero if the alcc field of the specified command mode scsw is | |
470 | * valid, zero otherwise. | |
471 | */ | |
62733e5a | 472 | static inline int scsw_cmd_is_valid_alcc(union scsw *scsw) |
23d805b6 PO |
473 | { |
474 | return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC); | |
475 | } | |
23d805b6 PO |
476 | |
477 | /** | |
478 | * scsw_cmd_is_valid_ssi - check ssi field validity | |
479 | * @scsw: pointer to scsw | |
480 | * | |
481 | * Return non-zero if the ssi field of the specified command mode scsw is | |
482 | * valid, zero otherwise. | |
483 | */ | |
62733e5a | 484 | static inline int scsw_cmd_is_valid_ssi(union scsw *scsw) |
23d805b6 PO |
485 | { |
486 | return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC); | |
487 | } | |
23d805b6 PO |
488 | |
489 | /** | |
490 | * scsw_cmd_is_valid_zcc - check zcc field validity | |
491 | * @scsw: pointer to scsw | |
492 | * | |
493 | * Return non-zero if the zcc field of the specified command mode scsw is | |
494 | * valid, zero otherwise. | |
495 | */ | |
62733e5a | 496 | static inline int scsw_cmd_is_valid_zcc(union scsw *scsw) |
23d805b6 PO |
497 | { |
498 | return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC) && | |
499 | (scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS); | |
500 | } | |
23d805b6 PO |
501 | |
502 | /** | |
503 | * scsw_cmd_is_valid_ectl - check ectl field validity | |
504 | * @scsw: pointer to scsw | |
505 | * | |
506 | * Return non-zero if the ectl field of the specified command mode scsw is | |
507 | * valid, zero otherwise. | |
508 | */ | |
62733e5a | 509 | static inline int scsw_cmd_is_valid_ectl(union scsw *scsw) |
23d805b6 PO |
510 | { |
511 | return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) && | |
512 | !(scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS) && | |
513 | (scsw->cmd.stctl & SCSW_STCTL_ALERT_STATUS); | |
514 | } | |
23d805b6 PO |
515 | |
516 | /** | |
517 | * scsw_cmd_is_valid_pno - check pno field validity | |
518 | * @scsw: pointer to scsw | |
519 | * | |
520 | * Return non-zero if the pno field of the specified command mode scsw is | |
521 | * valid, zero otherwise. | |
522 | */ | |
62733e5a | 523 | static inline int scsw_cmd_is_valid_pno(union scsw *scsw) |
23d805b6 PO |
524 | { |
525 | return (scsw->cmd.fctl != 0) && | |
526 | (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) && | |
527 | (!(scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS) || | |
528 | ((scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS) && | |
529 | (scsw->cmd.actl & SCSW_ACTL_SUSPENDED))); | |
530 | } | |
23d805b6 PO |
531 | |
532 | /** | |
533 | * scsw_cmd_is_valid_fctl - check fctl field validity | |
534 | * @scsw: pointer to scsw | |
535 | * | |
536 | * Return non-zero if the fctl field of the specified command mode scsw is | |
537 | * valid, zero otherwise. | |
538 | */ | |
62733e5a | 539 | static inline int scsw_cmd_is_valid_fctl(union scsw *scsw) |
23d805b6 PO |
540 | { |
541 | /* Only valid if pmcw.dnv == 1*/ | |
542 | return 1; | |
543 | } | |
23d805b6 PO |
544 | |
545 | /** | |
546 | * scsw_cmd_is_valid_actl - check actl field validity | |
547 | * @scsw: pointer to scsw | |
548 | * | |
549 | * Return non-zero if the actl field of the specified command mode scsw is | |
550 | * valid, zero otherwise. | |
551 | */ | |
62733e5a | 552 | static inline int scsw_cmd_is_valid_actl(union scsw *scsw) |
23d805b6 PO |
553 | { |
554 | /* Only valid if pmcw.dnv == 1*/ | |
555 | return 1; | |
556 | } | |
23d805b6 PO |
557 | |
558 | /** | |
559 | * scsw_cmd_is_valid_stctl - check stctl field validity | |
560 | * @scsw: pointer to scsw | |
561 | * | |
562 | * Return non-zero if the stctl field of the specified command mode scsw is | |
563 | * valid, zero otherwise. | |
564 | */ | |
62733e5a | 565 | static inline int scsw_cmd_is_valid_stctl(union scsw *scsw) |
23d805b6 PO |
566 | { |
567 | /* Only valid if pmcw.dnv == 1*/ | |
568 | return 1; | |
569 | } | |
23d805b6 PO |
570 | |
571 | /** | |
572 | * scsw_cmd_is_valid_dstat - check dstat field validity | |
573 | * @scsw: pointer to scsw | |
574 | * | |
575 | * Return non-zero if the dstat field of the specified command mode scsw is | |
576 | * valid, zero otherwise. | |
577 | */ | |
62733e5a | 578 | static inline int scsw_cmd_is_valid_dstat(union scsw *scsw) |
23d805b6 PO |
579 | { |
580 | return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) && | |
581 | (scsw->cmd.cc != 3); | |
582 | } | |
23d805b6 PO |
583 | |
584 | /** | |
585 | * scsw_cmd_is_valid_cstat - check cstat field validity | |
586 | * @scsw: pointer to scsw | |
587 | * | |
588 | * Return non-zero if the cstat field of the specified command mode scsw is | |
589 | * valid, zero otherwise. | |
590 | */ | |
62733e5a | 591 | static inline int scsw_cmd_is_valid_cstat(union scsw *scsw) |
23d805b6 PO |
592 | { |
593 | return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) && | |
594 | (scsw->cmd.cc != 3); | |
595 | } | |
23d805b6 PO |
596 | |
597 | /** | |
598 | * scsw_tm_is_valid_key - check key field validity | |
599 | * @scsw: pointer to scsw | |
600 | * | |
601 | * Return non-zero if the key field of the specified transport mode scsw is | |
602 | * valid, zero otherwise. | |
603 | */ | |
62733e5a | 604 | static inline int scsw_tm_is_valid_key(union scsw *scsw) |
23d805b6 PO |
605 | { |
606 | return (scsw->tm.fctl & SCSW_FCTL_START_FUNC); | |
607 | } | |
23d805b6 PO |
608 | |
609 | /** | |
610 | * scsw_tm_is_valid_eswf - check eswf field validity | |
611 | * @scsw: pointer to scsw | |
612 | * | |
613 | * Return non-zero if the eswf field of the specified transport mode scsw is | |
614 | * valid, zero otherwise. | |
615 | */ | |
62733e5a | 616 | static inline int scsw_tm_is_valid_eswf(union scsw *scsw) |
23d805b6 PO |
617 | { |
618 | return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND); | |
619 | } | |
23d805b6 PO |
620 | |
621 | /** | |
622 | * scsw_tm_is_valid_cc - check cc field validity | |
623 | * @scsw: pointer to scsw | |
624 | * | |
625 | * Return non-zero if the cc field of the specified transport mode scsw is | |
626 | * valid, zero otherwise. | |
627 | */ | |
62733e5a | 628 | static inline int scsw_tm_is_valid_cc(union scsw *scsw) |
23d805b6 PO |
629 | { |
630 | return (scsw->tm.fctl & SCSW_FCTL_START_FUNC) && | |
631 | (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND); | |
632 | } | |
23d805b6 PO |
633 | |
634 | /** | |
635 | * scsw_tm_is_valid_fmt - check fmt field validity | |
636 | * @scsw: pointer to scsw | |
637 | * | |
638 | * Return non-zero if the fmt field of the specified transport mode scsw is | |
639 | * valid, zero otherwise. | |
640 | */ | |
62733e5a | 641 | static inline int scsw_tm_is_valid_fmt(union scsw *scsw) |
23d805b6 PO |
642 | { |
643 | return 1; | |
644 | } | |
23d805b6 PO |
645 | |
646 | /** | |
647 | * scsw_tm_is_valid_x - check x field validity | |
648 | * @scsw: pointer to scsw | |
649 | * | |
650 | * Return non-zero if the x field of the specified transport mode scsw is | |
651 | * valid, zero otherwise. | |
652 | */ | |
62733e5a | 653 | static inline int scsw_tm_is_valid_x(union scsw *scsw) |
23d805b6 PO |
654 | { |
655 | return 1; | |
656 | } | |
23d805b6 PO |
657 | |
658 | /** | |
659 | * scsw_tm_is_valid_q - check q field validity | |
660 | * @scsw: pointer to scsw | |
661 | * | |
662 | * Return non-zero if the q field of the specified transport mode scsw is | |
663 | * valid, zero otherwise. | |
664 | */ | |
62733e5a | 665 | static inline int scsw_tm_is_valid_q(union scsw *scsw) |
23d805b6 PO |
666 | { |
667 | return 1; | |
668 | } | |
23d805b6 PO |
669 | |
670 | /** | |
671 | * scsw_tm_is_valid_ectl - check ectl field validity | |
672 | * @scsw: pointer to scsw | |
673 | * | |
674 | * Return non-zero if the ectl field of the specified transport mode scsw is | |
675 | * valid, zero otherwise. | |
676 | */ | |
62733e5a | 677 | static inline int scsw_tm_is_valid_ectl(union scsw *scsw) |
23d805b6 PO |
678 | { |
679 | return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) && | |
680 | !(scsw->tm.stctl & SCSW_STCTL_INTER_STATUS) && | |
681 | (scsw->tm.stctl & SCSW_STCTL_ALERT_STATUS); | |
682 | } | |
23d805b6 PO |
683 | |
684 | /** | |
685 | * scsw_tm_is_valid_pno - check pno field validity | |
686 | * @scsw: pointer to scsw | |
687 | * | |
688 | * Return non-zero if the pno field of the specified transport mode scsw is | |
689 | * valid, zero otherwise. | |
690 | */ | |
62733e5a | 691 | static inline int scsw_tm_is_valid_pno(union scsw *scsw) |
23d805b6 PO |
692 | { |
693 | return (scsw->tm.fctl != 0) && | |
694 | (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) && | |
695 | (!(scsw->tm.stctl & SCSW_STCTL_INTER_STATUS) || | |
696 | ((scsw->tm.stctl & SCSW_STCTL_INTER_STATUS) && | |
697 | (scsw->tm.actl & SCSW_ACTL_SUSPENDED))); | |
698 | } | |
23d805b6 PO |
699 | |
700 | /** | |
701 | * scsw_tm_is_valid_fctl - check fctl field validity | |
702 | * @scsw: pointer to scsw | |
703 | * | |
704 | * Return non-zero if the fctl field of the specified transport mode scsw is | |
705 | * valid, zero otherwise. | |
706 | */ | |
62733e5a | 707 | static inline int scsw_tm_is_valid_fctl(union scsw *scsw) |
23d805b6 PO |
708 | { |
709 | /* Only valid if pmcw.dnv == 1*/ | |
710 | return 1; | |
711 | } | |
23d805b6 PO |
712 | |
713 | /** | |
714 | * scsw_tm_is_valid_actl - check actl field validity | |
715 | * @scsw: pointer to scsw | |
716 | * | |
717 | * Return non-zero if the actl field of the specified transport mode scsw is | |
718 | * valid, zero otherwise. | |
719 | */ | |
62733e5a | 720 | static inline int scsw_tm_is_valid_actl(union scsw *scsw) |
23d805b6 PO |
721 | { |
722 | /* Only valid if pmcw.dnv == 1*/ | |
723 | return 1; | |
724 | } | |
23d805b6 PO |
725 | |
726 | /** | |
727 | * scsw_tm_is_valid_stctl - check stctl field validity | |
728 | * @scsw: pointer to scsw | |
729 | * | |
730 | * Return non-zero if the stctl field of the specified transport mode scsw is | |
731 | * valid, zero otherwise. | |
732 | */ | |
62733e5a | 733 | static inline int scsw_tm_is_valid_stctl(union scsw *scsw) |
23d805b6 PO |
734 | { |
735 | /* Only valid if pmcw.dnv == 1*/ | |
736 | return 1; | |
737 | } | |
23d805b6 PO |
738 | |
739 | /** | |
740 | * scsw_tm_is_valid_dstat - check dstat field validity | |
741 | * @scsw: pointer to scsw | |
742 | * | |
743 | * Return non-zero if the dstat field of the specified transport mode scsw is | |
744 | * valid, zero otherwise. | |
745 | */ | |
62733e5a | 746 | static inline int scsw_tm_is_valid_dstat(union scsw *scsw) |
23d805b6 PO |
747 | { |
748 | return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) && | |
749 | (scsw->tm.cc != 3); | |
750 | } | |
23d805b6 PO |
751 | |
752 | /** | |
753 | * scsw_tm_is_valid_cstat - check cstat field validity | |
754 | * @scsw: pointer to scsw | |
755 | * | |
756 | * Return non-zero if the cstat field of the specified transport mode scsw is | |
757 | * valid, zero otherwise. | |
758 | */ | |
62733e5a | 759 | static inline int scsw_tm_is_valid_cstat(union scsw *scsw) |
23d805b6 PO |
760 | { |
761 | return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) && | |
762 | (scsw->tm.cc != 3); | |
763 | } | |
23d805b6 PO |
764 | |
765 | /** | |
766 | * scsw_tm_is_valid_fcxs - check fcxs field validity | |
767 | * @scsw: pointer to scsw | |
768 | * | |
769 | * Return non-zero if the fcxs field of the specified transport mode scsw is | |
770 | * valid, zero otherwise. | |
771 | */ | |
62733e5a | 772 | static inline int scsw_tm_is_valid_fcxs(union scsw *scsw) |
23d805b6 PO |
773 | { |
774 | return 1; | |
775 | } | |
23d805b6 PO |
776 | |
777 | /** | |
778 | * scsw_tm_is_valid_schxs - check schxs field validity | |
779 | * @scsw: pointer to scsw | |
780 | * | |
781 | * Return non-zero if the schxs field of the specified transport mode scsw is | |
782 | * valid, zero otherwise. | |
783 | */ | |
62733e5a | 784 | static inline int scsw_tm_is_valid_schxs(union scsw *scsw) |
23d805b6 PO |
785 | { |
786 | return (scsw->tm.cstat & (SCHN_STAT_PROG_CHECK | | |
787 | SCHN_STAT_INTF_CTRL_CHK | | |
788 | SCHN_STAT_PROT_CHECK | | |
789 | SCHN_STAT_CHN_DATA_CHK)); | |
790 | } | |
23d805b6 PO |
791 | |
792 | /** | |
793 | * scsw_is_valid_actl - check actl field validity | |
794 | * @scsw: pointer to scsw | |
795 | * | |
796 | * Return non-zero if the actl field of the specified scsw is valid, | |
797 | * regardless of whether it is a transport mode or command mode scsw. | |
798 | * Return zero if the field does not contain a valid value. | |
799 | */ | |
62733e5a | 800 | static inline int scsw_is_valid_actl(union scsw *scsw) |
23d805b6 PO |
801 | { |
802 | if (scsw_is_tm(scsw)) | |
803 | return scsw_tm_is_valid_actl(scsw); | |
804 | else | |
805 | return scsw_cmd_is_valid_actl(scsw); | |
806 | } | |
23d805b6 PO |
807 | |
808 | /** | |
809 | * scsw_is_valid_cc - check cc field validity | |
810 | * @scsw: pointer to scsw | |
811 | * | |
812 | * Return non-zero if the cc field of the specified scsw is valid, | |
813 | * regardless of whether it is a transport mode or command mode scsw. | |
814 | * Return zero if the field does not contain a valid value. | |
815 | */ | |
62733e5a | 816 | static inline int scsw_is_valid_cc(union scsw *scsw) |
23d805b6 PO |
817 | { |
818 | if (scsw_is_tm(scsw)) | |
819 | return scsw_tm_is_valid_cc(scsw); | |
820 | else | |
821 | return scsw_cmd_is_valid_cc(scsw); | |
822 | } | |
23d805b6 PO |
823 | |
824 | /** | |
825 | * scsw_is_valid_cstat - check cstat field validity | |
826 | * @scsw: pointer to scsw | |
827 | * | |
828 | * Return non-zero if the cstat field of the specified scsw is valid, | |
829 | * regardless of whether it is a transport mode or command mode scsw. | |
830 | * Return zero if the field does not contain a valid value. | |
831 | */ | |
62733e5a | 832 | static inline int scsw_is_valid_cstat(union scsw *scsw) |
23d805b6 PO |
833 | { |
834 | if (scsw_is_tm(scsw)) | |
835 | return scsw_tm_is_valid_cstat(scsw); | |
836 | else | |
837 | return scsw_cmd_is_valid_cstat(scsw); | |
838 | } | |
23d805b6 PO |
839 | |
840 | /** | |
841 | * scsw_is_valid_dstat - check dstat field validity | |
842 | * @scsw: pointer to scsw | |
843 | * | |
844 | * Return non-zero if the dstat field of the specified scsw is valid, | |
845 | * regardless of whether it is a transport mode or command mode scsw. | |
846 | * Return zero if the field does not contain a valid value. | |
847 | */ | |
62733e5a | 848 | static inline int scsw_is_valid_dstat(union scsw *scsw) |
23d805b6 PO |
849 | { |
850 | if (scsw_is_tm(scsw)) | |
851 | return scsw_tm_is_valid_dstat(scsw); | |
852 | else | |
853 | return scsw_cmd_is_valid_dstat(scsw); | |
854 | } | |
23d805b6 PO |
855 | |
856 | /** | |
857 | * scsw_is_valid_ectl - check ectl field validity | |
858 | * @scsw: pointer to scsw | |
859 | * | |
860 | * Return non-zero if the ectl field of the specified scsw is valid, | |
861 | * regardless of whether it is a transport mode or command mode scsw. | |
862 | * Return zero if the field does not contain a valid value. | |
863 | */ | |
62733e5a | 864 | static inline int scsw_is_valid_ectl(union scsw *scsw) |
23d805b6 PO |
865 | { |
866 | if (scsw_is_tm(scsw)) | |
867 | return scsw_tm_is_valid_ectl(scsw); | |
868 | else | |
869 | return scsw_cmd_is_valid_ectl(scsw); | |
870 | } | |
23d805b6 PO |
871 | |
872 | /** | |
873 | * scsw_is_valid_eswf - check eswf field validity | |
874 | * @scsw: pointer to scsw | |
875 | * | |
876 | * Return non-zero if the eswf field of the specified scsw is valid, | |
877 | * regardless of whether it is a transport mode or command mode scsw. | |
878 | * Return zero if the field does not contain a valid value. | |
879 | */ | |
62733e5a | 880 | static inline int scsw_is_valid_eswf(union scsw *scsw) |
23d805b6 PO |
881 | { |
882 | if (scsw_is_tm(scsw)) | |
883 | return scsw_tm_is_valid_eswf(scsw); | |
884 | else | |
885 | return scsw_cmd_is_valid_eswf(scsw); | |
886 | } | |
23d805b6 PO |
887 | |
888 | /** | |
889 | * scsw_is_valid_fctl - check fctl field validity | |
890 | * @scsw: pointer to scsw | |
891 | * | |
892 | * Return non-zero if the fctl field of the specified scsw is valid, | |
893 | * regardless of whether it is a transport mode or command mode scsw. | |
894 | * Return zero if the field does not contain a valid value. | |
895 | */ | |
62733e5a | 896 | static inline int scsw_is_valid_fctl(union scsw *scsw) |
23d805b6 PO |
897 | { |
898 | if (scsw_is_tm(scsw)) | |
899 | return scsw_tm_is_valid_fctl(scsw); | |
900 | else | |
901 | return scsw_cmd_is_valid_fctl(scsw); | |
902 | } | |
23d805b6 PO |
903 | |
904 | /** | |
905 | * scsw_is_valid_key - check key field validity | |
906 | * @scsw: pointer to scsw | |
907 | * | |
908 | * Return non-zero if the key field of the specified scsw is valid, | |
909 | * regardless of whether it is a transport mode or command mode scsw. | |
910 | * Return zero if the field does not contain a valid value. | |
911 | */ | |
62733e5a | 912 | static inline int scsw_is_valid_key(union scsw *scsw) |
23d805b6 PO |
913 | { |
914 | if (scsw_is_tm(scsw)) | |
915 | return scsw_tm_is_valid_key(scsw); | |
916 | else | |
917 | return scsw_cmd_is_valid_key(scsw); | |
918 | } | |
23d805b6 PO |
919 | |
920 | /** | |
921 | * scsw_is_valid_pno - check pno field validity | |
922 | * @scsw: pointer to scsw | |
923 | * | |
924 | * Return non-zero if the pno field of the specified scsw is valid, | |
925 | * regardless of whether it is a transport mode or command mode scsw. | |
926 | * Return zero if the field does not contain a valid value. | |
927 | */ | |
62733e5a | 928 | static inline int scsw_is_valid_pno(union scsw *scsw) |
23d805b6 PO |
929 | { |
930 | if (scsw_is_tm(scsw)) | |
931 | return scsw_tm_is_valid_pno(scsw); | |
932 | else | |
933 | return scsw_cmd_is_valid_pno(scsw); | |
934 | } | |
23d805b6 PO |
935 | |
936 | /** | |
937 | * scsw_is_valid_stctl - check stctl field validity | |
938 | * @scsw: pointer to scsw | |
939 | * | |
940 | * Return non-zero if the stctl field of the specified scsw is valid, | |
941 | * regardless of whether it is a transport mode or command mode scsw. | |
942 | * Return zero if the field does not contain a valid value. | |
943 | */ | |
62733e5a | 944 | static inline int scsw_is_valid_stctl(union scsw *scsw) |
23d805b6 PO |
945 | { |
946 | if (scsw_is_tm(scsw)) | |
947 | return scsw_tm_is_valid_stctl(scsw); | |
948 | else | |
949 | return scsw_cmd_is_valid_stctl(scsw); | |
950 | } | |
23d805b6 PO |
951 | |
952 | /** | |
953 | * scsw_cmd_is_solicited - check for solicited scsw | |
954 | * @scsw: pointer to scsw | |
955 | * | |
956 | * Return non-zero if the command mode scsw indicates that the associated | |
957 | * status condition is solicited, zero if it is unsolicited. | |
958 | */ | |
62733e5a | 959 | static inline int scsw_cmd_is_solicited(union scsw *scsw) |
23d805b6 PO |
960 | { |
961 | return (scsw->cmd.cc != 0) || (scsw->cmd.stctl != | |
962 | (SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS)); | |
963 | } | |
23d805b6 PO |
964 | |
965 | /** | |
966 | * scsw_tm_is_solicited - check for solicited scsw | |
967 | * @scsw: pointer to scsw | |
968 | * | |
969 | * Return non-zero if the transport mode scsw indicates that the associated | |
970 | * status condition is solicited, zero if it is unsolicited. | |
971 | */ | |
62733e5a | 972 | static inline int scsw_tm_is_solicited(union scsw *scsw) |
23d805b6 PO |
973 | { |
974 | return (scsw->tm.cc != 0) || (scsw->tm.stctl != | |
975 | (SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS)); | |
976 | } | |
23d805b6 PO |
977 | |
978 | /** | |
979 | * scsw_is_solicited - check for solicited scsw | |
980 | * @scsw: pointer to scsw | |
981 | * | |
982 | * Return non-zero if the transport or command mode scsw indicates that the | |
983 | * associated status condition is solicited, zero if it is unsolicited. | |
984 | */ | |
62733e5a | 985 | static inline int scsw_is_solicited(union scsw *scsw) |
23d805b6 PO |
986 | { |
987 | if (scsw_is_tm(scsw)) | |
988 | return scsw_tm_is_solicited(scsw); | |
989 | else | |
990 | return scsw_cmd_is_solicited(scsw); | |
991 | } | |
62733e5a HC |
992 | |
993 | #endif /* _ASM_S390_SCSW_H_ */ |