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23d805b6 PO |
1 | /* |
2 | * Helper functions for scsw access. | |
3 | * | |
4 | * Copyright IBM Corp. 2008 | |
5 | * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com> | |
6 | */ | |
7 | ||
8 | #include <linux/types.h> | |
9 | #include <linux/module.h> | |
10 | #include <asm/cio.h> | |
11 | #include "css.h" | |
12 | #include "chsc.h" | |
13 | ||
14 | /** | |
15 | * scsw_is_tm - check for transport mode scsw | |
16 | * @scsw: pointer to scsw | |
17 | * | |
18 | * Return non-zero if the specified scsw is a transport mode scsw, zero | |
19 | * otherwise. | |
20 | */ | |
21 | int scsw_is_tm(union scsw *scsw) | |
22 | { | |
23 | return css_general_characteristics.fcx && (scsw->tm.x == 1); | |
24 | } | |
25 | EXPORT_SYMBOL(scsw_is_tm); | |
26 | ||
27 | /** | |
28 | * scsw_key - return scsw key field | |
29 | * @scsw: pointer to scsw | |
30 | * | |
31 | * Return the value of the key field of the specified scsw, regardless of | |
32 | * whether it is a transport mode or command mode scsw. | |
33 | */ | |
34 | u32 scsw_key(union scsw *scsw) | |
35 | { | |
36 | if (scsw_is_tm(scsw)) | |
37 | return scsw->tm.key; | |
38 | else | |
39 | return scsw->cmd.key; | |
40 | } | |
41 | EXPORT_SYMBOL(scsw_key); | |
42 | ||
43 | /** | |
44 | * scsw_eswf - return scsw eswf field | |
45 | * @scsw: pointer to scsw | |
46 | * | |
47 | * Return the value of the eswf field of the specified scsw, regardless of | |
48 | * whether it is a transport mode or command mode scsw. | |
49 | */ | |
50 | u32 scsw_eswf(union scsw *scsw) | |
51 | { | |
52 | if (scsw_is_tm(scsw)) | |
53 | return scsw->tm.eswf; | |
54 | else | |
55 | return scsw->cmd.eswf; | |
56 | } | |
57 | EXPORT_SYMBOL(scsw_eswf); | |
58 | ||
59 | /** | |
60 | * scsw_cc - return scsw cc field | |
61 | * @scsw: pointer to scsw | |
62 | * | |
63 | * Return the value of the cc field of the specified scsw, regardless of | |
64 | * whether it is a transport mode or command mode scsw. | |
65 | */ | |
66 | u32 scsw_cc(union scsw *scsw) | |
67 | { | |
68 | if (scsw_is_tm(scsw)) | |
69 | return scsw->tm.cc; | |
70 | else | |
71 | return scsw->cmd.cc; | |
72 | } | |
73 | EXPORT_SYMBOL(scsw_cc); | |
74 | ||
75 | /** | |
76 | * scsw_ectl - return scsw ectl field | |
77 | * @scsw: pointer to scsw | |
78 | * | |
79 | * Return the value of the ectl field of the specified scsw, regardless of | |
80 | * whether it is a transport mode or command mode scsw. | |
81 | */ | |
82 | u32 scsw_ectl(union scsw *scsw) | |
83 | { | |
84 | if (scsw_is_tm(scsw)) | |
85 | return scsw->tm.ectl; | |
86 | else | |
87 | return scsw->cmd.ectl; | |
88 | } | |
89 | EXPORT_SYMBOL(scsw_ectl); | |
90 | ||
91 | /** | |
92 | * scsw_pno - return scsw pno field | |
93 | * @scsw: pointer to scsw | |
94 | * | |
95 | * Return the value of the pno field of the specified scsw, regardless of | |
96 | * whether it is a transport mode or command mode scsw. | |
97 | */ | |
98 | u32 scsw_pno(union scsw *scsw) | |
99 | { | |
100 | if (scsw_is_tm(scsw)) | |
101 | return scsw->tm.pno; | |
102 | else | |
103 | return scsw->cmd.pno; | |
104 | } | |
105 | EXPORT_SYMBOL(scsw_pno); | |
106 | ||
107 | /** | |
108 | * scsw_fctl - return scsw fctl field | |
109 | * @scsw: pointer to scsw | |
110 | * | |
111 | * Return the value of the fctl field of the specified scsw, regardless of | |
112 | * whether it is a transport mode or command mode scsw. | |
113 | */ | |
114 | u32 scsw_fctl(union scsw *scsw) | |
115 | { | |
116 | if (scsw_is_tm(scsw)) | |
117 | return scsw->tm.fctl; | |
118 | else | |
119 | return scsw->cmd.fctl; | |
120 | } | |
121 | EXPORT_SYMBOL(scsw_fctl); | |
122 | ||
123 | /** | |
124 | * scsw_actl - return scsw actl field | |
125 | * @scsw: pointer to scsw | |
126 | * | |
127 | * Return the value of the actl field of the specified scsw, regardless of | |
128 | * whether it is a transport mode or command mode scsw. | |
129 | */ | |
130 | u32 scsw_actl(union scsw *scsw) | |
131 | { | |
132 | if (scsw_is_tm(scsw)) | |
133 | return scsw->tm.actl; | |
134 | else | |
135 | return scsw->cmd.actl; | |
136 | } | |
137 | EXPORT_SYMBOL(scsw_actl); | |
138 | ||
139 | /** | |
140 | * scsw_stctl - return scsw stctl field | |
141 | * @scsw: pointer to scsw | |
142 | * | |
143 | * Return the value of the stctl field of the specified scsw, regardless of | |
144 | * whether it is a transport mode or command mode scsw. | |
145 | */ | |
146 | u32 scsw_stctl(union scsw *scsw) | |
147 | { | |
148 | if (scsw_is_tm(scsw)) | |
149 | return scsw->tm.stctl; | |
150 | else | |
151 | return scsw->cmd.stctl; | |
152 | } | |
153 | EXPORT_SYMBOL(scsw_stctl); | |
154 | ||
155 | /** | |
156 | * scsw_dstat - return scsw dstat field | |
157 | * @scsw: pointer to scsw | |
158 | * | |
159 | * Return the value of the dstat field of the specified scsw, regardless of | |
160 | * whether it is a transport mode or command mode scsw. | |
161 | */ | |
162 | u32 scsw_dstat(union scsw *scsw) | |
163 | { | |
164 | if (scsw_is_tm(scsw)) | |
165 | return scsw->tm.dstat; | |
166 | else | |
167 | return scsw->cmd.dstat; | |
168 | } | |
169 | EXPORT_SYMBOL(scsw_dstat); | |
170 | ||
171 | /** | |
172 | * scsw_cstat - return scsw cstat field | |
173 | * @scsw: pointer to scsw | |
174 | * | |
175 | * Return the value of the cstat field of the specified scsw, regardless of | |
176 | * whether it is a transport mode or command mode scsw. | |
177 | */ | |
178 | u32 scsw_cstat(union scsw *scsw) | |
179 | { | |
180 | if (scsw_is_tm(scsw)) | |
181 | return scsw->tm.cstat; | |
182 | else | |
183 | return scsw->cmd.cstat; | |
184 | } | |
185 | EXPORT_SYMBOL(scsw_cstat); | |
186 | ||
187 | /** | |
188 | * scsw_cmd_is_valid_key - check key field validity | |
189 | * @scsw: pointer to scsw | |
190 | * | |
191 | * Return non-zero if the key field of the specified command mode scsw is | |
192 | * valid, zero otherwise. | |
193 | */ | |
194 | int scsw_cmd_is_valid_key(union scsw *scsw) | |
195 | { | |
196 | return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC); | |
197 | } | |
198 | EXPORT_SYMBOL(scsw_cmd_is_valid_key); | |
199 | ||
200 | /** | |
201 | * scsw_cmd_is_valid_sctl - check fctl field validity | |
202 | * @scsw: pointer to scsw | |
203 | * | |
204 | * Return non-zero if the fctl field of the specified command mode scsw is | |
205 | * valid, zero otherwise. | |
206 | */ | |
207 | int scsw_cmd_is_valid_sctl(union scsw *scsw) | |
208 | { | |
209 | return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC); | |
210 | } | |
211 | EXPORT_SYMBOL(scsw_cmd_is_valid_sctl); | |
212 | ||
213 | /** | |
214 | * scsw_cmd_is_valid_eswf - check eswf field validity | |
215 | * @scsw: pointer to scsw | |
216 | * | |
217 | * Return non-zero if the eswf field of the specified command mode scsw is | |
218 | * valid, zero otherwise. | |
219 | */ | |
220 | int scsw_cmd_is_valid_eswf(union scsw *scsw) | |
221 | { | |
222 | return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND); | |
223 | } | |
224 | EXPORT_SYMBOL(scsw_cmd_is_valid_eswf); | |
225 | ||
226 | /** | |
227 | * scsw_cmd_is_valid_cc - check cc field validity | |
228 | * @scsw: pointer to scsw | |
229 | * | |
230 | * Return non-zero if the cc field of the specified command mode scsw is | |
231 | * valid, zero otherwise. | |
232 | */ | |
233 | int scsw_cmd_is_valid_cc(union scsw *scsw) | |
234 | { | |
235 | return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC) && | |
236 | (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND); | |
237 | } | |
238 | EXPORT_SYMBOL(scsw_cmd_is_valid_cc); | |
239 | ||
240 | /** | |
241 | * scsw_cmd_is_valid_fmt - check fmt field validity | |
242 | * @scsw: pointer to scsw | |
243 | * | |
244 | * Return non-zero if the fmt field of the specified command mode scsw is | |
245 | * valid, zero otherwise. | |
246 | */ | |
247 | int scsw_cmd_is_valid_fmt(union scsw *scsw) | |
248 | { | |
249 | return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC); | |
250 | } | |
251 | EXPORT_SYMBOL(scsw_cmd_is_valid_fmt); | |
252 | ||
253 | /** | |
254 | * scsw_cmd_is_valid_pfch - check pfch field validity | |
255 | * @scsw: pointer to scsw | |
256 | * | |
257 | * Return non-zero if the pfch field of the specified command mode scsw is | |
258 | * valid, zero otherwise. | |
259 | */ | |
260 | int scsw_cmd_is_valid_pfch(union scsw *scsw) | |
261 | { | |
262 | return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC); | |
263 | } | |
264 | EXPORT_SYMBOL(scsw_cmd_is_valid_pfch); | |
265 | ||
266 | /** | |
267 | * scsw_cmd_is_valid_isic - check isic field validity | |
268 | * @scsw: pointer to scsw | |
269 | * | |
270 | * Return non-zero if the isic field of the specified command mode scsw is | |
271 | * valid, zero otherwise. | |
272 | */ | |
273 | int scsw_cmd_is_valid_isic(union scsw *scsw) | |
274 | { | |
275 | return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC); | |
276 | } | |
277 | EXPORT_SYMBOL(scsw_cmd_is_valid_isic); | |
278 | ||
279 | /** | |
280 | * scsw_cmd_is_valid_alcc - check alcc field validity | |
281 | * @scsw: pointer to scsw | |
282 | * | |
283 | * Return non-zero if the alcc field of the specified command mode scsw is | |
284 | * valid, zero otherwise. | |
285 | */ | |
286 | int scsw_cmd_is_valid_alcc(union scsw *scsw) | |
287 | { | |
288 | return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC); | |
289 | } | |
290 | EXPORT_SYMBOL(scsw_cmd_is_valid_alcc); | |
291 | ||
292 | /** | |
293 | * scsw_cmd_is_valid_ssi - check ssi field validity | |
294 | * @scsw: pointer to scsw | |
295 | * | |
296 | * Return non-zero if the ssi field of the specified command mode scsw is | |
297 | * valid, zero otherwise. | |
298 | */ | |
299 | int scsw_cmd_is_valid_ssi(union scsw *scsw) | |
300 | { | |
301 | return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC); | |
302 | } | |
303 | EXPORT_SYMBOL(scsw_cmd_is_valid_ssi); | |
304 | ||
305 | /** | |
306 | * scsw_cmd_is_valid_zcc - check zcc field validity | |
307 | * @scsw: pointer to scsw | |
308 | * | |
309 | * Return non-zero if the zcc field of the specified command mode scsw is | |
310 | * valid, zero otherwise. | |
311 | */ | |
312 | int scsw_cmd_is_valid_zcc(union scsw *scsw) | |
313 | { | |
314 | return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC) && | |
315 | (scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS); | |
316 | } | |
317 | EXPORT_SYMBOL(scsw_cmd_is_valid_zcc); | |
318 | ||
319 | /** | |
320 | * scsw_cmd_is_valid_ectl - check ectl field validity | |
321 | * @scsw: pointer to scsw | |
322 | * | |
323 | * Return non-zero if the ectl field of the specified command mode scsw is | |
324 | * valid, zero otherwise. | |
325 | */ | |
326 | int scsw_cmd_is_valid_ectl(union scsw *scsw) | |
327 | { | |
328 | return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) && | |
329 | !(scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS) && | |
330 | (scsw->cmd.stctl & SCSW_STCTL_ALERT_STATUS); | |
331 | } | |
332 | EXPORT_SYMBOL(scsw_cmd_is_valid_ectl); | |
333 | ||
334 | /** | |
335 | * scsw_cmd_is_valid_pno - check pno field validity | |
336 | * @scsw: pointer to scsw | |
337 | * | |
338 | * Return non-zero if the pno field of the specified command mode scsw is | |
339 | * valid, zero otherwise. | |
340 | */ | |
341 | int scsw_cmd_is_valid_pno(union scsw *scsw) | |
342 | { | |
343 | return (scsw->cmd.fctl != 0) && | |
344 | (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) && | |
345 | (!(scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS) || | |
346 | ((scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS) && | |
347 | (scsw->cmd.actl & SCSW_ACTL_SUSPENDED))); | |
348 | } | |
349 | EXPORT_SYMBOL(scsw_cmd_is_valid_pno); | |
350 | ||
351 | /** | |
352 | * scsw_cmd_is_valid_fctl - check fctl field validity | |
353 | * @scsw: pointer to scsw | |
354 | * | |
355 | * Return non-zero if the fctl field of the specified command mode scsw is | |
356 | * valid, zero otherwise. | |
357 | */ | |
358 | int scsw_cmd_is_valid_fctl(union scsw *scsw) | |
359 | { | |
360 | /* Only valid if pmcw.dnv == 1*/ | |
361 | return 1; | |
362 | } | |
363 | EXPORT_SYMBOL(scsw_cmd_is_valid_fctl); | |
364 | ||
365 | /** | |
366 | * scsw_cmd_is_valid_actl - check actl field validity | |
367 | * @scsw: pointer to scsw | |
368 | * | |
369 | * Return non-zero if the actl field of the specified command mode scsw is | |
370 | * valid, zero otherwise. | |
371 | */ | |
372 | int scsw_cmd_is_valid_actl(union scsw *scsw) | |
373 | { | |
374 | /* Only valid if pmcw.dnv == 1*/ | |
375 | return 1; | |
376 | } | |
377 | EXPORT_SYMBOL(scsw_cmd_is_valid_actl); | |
378 | ||
379 | /** | |
380 | * scsw_cmd_is_valid_stctl - check stctl field validity | |
381 | * @scsw: pointer to scsw | |
382 | * | |
383 | * Return non-zero if the stctl field of the specified command mode scsw is | |
384 | * valid, zero otherwise. | |
385 | */ | |
386 | int scsw_cmd_is_valid_stctl(union scsw *scsw) | |
387 | { | |
388 | /* Only valid if pmcw.dnv == 1*/ | |
389 | return 1; | |
390 | } | |
391 | EXPORT_SYMBOL(scsw_cmd_is_valid_stctl); | |
392 | ||
393 | /** | |
394 | * scsw_cmd_is_valid_dstat - check dstat field validity | |
395 | * @scsw: pointer to scsw | |
396 | * | |
397 | * Return non-zero if the dstat field of the specified command mode scsw is | |
398 | * valid, zero otherwise. | |
399 | */ | |
400 | int scsw_cmd_is_valid_dstat(union scsw *scsw) | |
401 | { | |
402 | return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) && | |
403 | (scsw->cmd.cc != 3); | |
404 | } | |
405 | EXPORT_SYMBOL(scsw_cmd_is_valid_dstat); | |
406 | ||
407 | /** | |
408 | * scsw_cmd_is_valid_cstat - check cstat field validity | |
409 | * @scsw: pointer to scsw | |
410 | * | |
411 | * Return non-zero if the cstat field of the specified command mode scsw is | |
412 | * valid, zero otherwise. | |
413 | */ | |
414 | int scsw_cmd_is_valid_cstat(union scsw *scsw) | |
415 | { | |
416 | return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) && | |
417 | (scsw->cmd.cc != 3); | |
418 | } | |
419 | EXPORT_SYMBOL(scsw_cmd_is_valid_cstat); | |
420 | ||
421 | /** | |
422 | * scsw_tm_is_valid_key - check key field validity | |
423 | * @scsw: pointer to scsw | |
424 | * | |
425 | * Return non-zero if the key field of the specified transport mode scsw is | |
426 | * valid, zero otherwise. | |
427 | */ | |
428 | int scsw_tm_is_valid_key(union scsw *scsw) | |
429 | { | |
430 | return (scsw->tm.fctl & SCSW_FCTL_START_FUNC); | |
431 | } | |
432 | EXPORT_SYMBOL(scsw_tm_is_valid_key); | |
433 | ||
434 | /** | |
435 | * scsw_tm_is_valid_eswf - check eswf field validity | |
436 | * @scsw: pointer to scsw | |
437 | * | |
438 | * Return non-zero if the eswf field of the specified transport mode scsw is | |
439 | * valid, zero otherwise. | |
440 | */ | |
441 | int scsw_tm_is_valid_eswf(union scsw *scsw) | |
442 | { | |
443 | return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND); | |
444 | } | |
445 | EXPORT_SYMBOL(scsw_tm_is_valid_eswf); | |
446 | ||
447 | /** | |
448 | * scsw_tm_is_valid_cc - check cc field validity | |
449 | * @scsw: pointer to scsw | |
450 | * | |
451 | * Return non-zero if the cc field of the specified transport mode scsw is | |
452 | * valid, zero otherwise. | |
453 | */ | |
454 | int scsw_tm_is_valid_cc(union scsw *scsw) | |
455 | { | |
456 | return (scsw->tm.fctl & SCSW_FCTL_START_FUNC) && | |
457 | (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND); | |
458 | } | |
459 | EXPORT_SYMBOL(scsw_tm_is_valid_cc); | |
460 | ||
461 | /** | |
462 | * scsw_tm_is_valid_fmt - check fmt field validity | |
463 | * @scsw: pointer to scsw | |
464 | * | |
465 | * Return non-zero if the fmt field of the specified transport mode scsw is | |
466 | * valid, zero otherwise. | |
467 | */ | |
468 | int scsw_tm_is_valid_fmt(union scsw *scsw) | |
469 | { | |
470 | return 1; | |
471 | } | |
472 | EXPORT_SYMBOL(scsw_tm_is_valid_fmt); | |
473 | ||
474 | /** | |
475 | * scsw_tm_is_valid_x - check x field validity | |
476 | * @scsw: pointer to scsw | |
477 | * | |
478 | * Return non-zero if the x field of the specified transport mode scsw is | |
479 | * valid, zero otherwise. | |
480 | */ | |
481 | int scsw_tm_is_valid_x(union scsw *scsw) | |
482 | { | |
483 | return 1; | |
484 | } | |
485 | EXPORT_SYMBOL(scsw_tm_is_valid_x); | |
486 | ||
487 | /** | |
488 | * scsw_tm_is_valid_q - check q field validity | |
489 | * @scsw: pointer to scsw | |
490 | * | |
491 | * Return non-zero if the q field of the specified transport mode scsw is | |
492 | * valid, zero otherwise. | |
493 | */ | |
494 | int scsw_tm_is_valid_q(union scsw *scsw) | |
495 | { | |
496 | return 1; | |
497 | } | |
498 | EXPORT_SYMBOL(scsw_tm_is_valid_q); | |
499 | ||
500 | /** | |
501 | * scsw_tm_is_valid_ectl - check ectl field validity | |
502 | * @scsw: pointer to scsw | |
503 | * | |
504 | * Return non-zero if the ectl field of the specified transport mode scsw is | |
505 | * valid, zero otherwise. | |
506 | */ | |
507 | int scsw_tm_is_valid_ectl(union scsw *scsw) | |
508 | { | |
509 | return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) && | |
510 | !(scsw->tm.stctl & SCSW_STCTL_INTER_STATUS) && | |
511 | (scsw->tm.stctl & SCSW_STCTL_ALERT_STATUS); | |
512 | } | |
513 | EXPORT_SYMBOL(scsw_tm_is_valid_ectl); | |
514 | ||
515 | /** | |
516 | * scsw_tm_is_valid_pno - check pno field validity | |
517 | * @scsw: pointer to scsw | |
518 | * | |
519 | * Return non-zero if the pno field of the specified transport mode scsw is | |
520 | * valid, zero otherwise. | |
521 | */ | |
522 | int scsw_tm_is_valid_pno(union scsw *scsw) | |
523 | { | |
524 | return (scsw->tm.fctl != 0) && | |
525 | (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) && | |
526 | (!(scsw->tm.stctl & SCSW_STCTL_INTER_STATUS) || | |
527 | ((scsw->tm.stctl & SCSW_STCTL_INTER_STATUS) && | |
528 | (scsw->tm.actl & SCSW_ACTL_SUSPENDED))); | |
529 | } | |
530 | EXPORT_SYMBOL(scsw_tm_is_valid_pno); | |
531 | ||
532 | /** | |
533 | * scsw_tm_is_valid_fctl - check fctl field validity | |
534 | * @scsw: pointer to scsw | |
535 | * | |
536 | * Return non-zero if the fctl field of the specified transport mode scsw is | |
537 | * valid, zero otherwise. | |
538 | */ | |
539 | int scsw_tm_is_valid_fctl(union scsw *scsw) | |
540 | { | |
541 | /* Only valid if pmcw.dnv == 1*/ | |
542 | return 1; | |
543 | } | |
544 | EXPORT_SYMBOL(scsw_tm_is_valid_fctl); | |
545 | ||
546 | /** | |
547 | * scsw_tm_is_valid_actl - check actl field validity | |
548 | * @scsw: pointer to scsw | |
549 | * | |
550 | * Return non-zero if the actl field of the specified transport mode scsw is | |
551 | * valid, zero otherwise. | |
552 | */ | |
553 | int scsw_tm_is_valid_actl(union scsw *scsw) | |
554 | { | |
555 | /* Only valid if pmcw.dnv == 1*/ | |
556 | return 1; | |
557 | } | |
558 | EXPORT_SYMBOL(scsw_tm_is_valid_actl); | |
559 | ||
560 | /** | |
561 | * scsw_tm_is_valid_stctl - check stctl field validity | |
562 | * @scsw: pointer to scsw | |
563 | * | |
564 | * Return non-zero if the stctl field of the specified transport mode scsw is | |
565 | * valid, zero otherwise. | |
566 | */ | |
567 | int scsw_tm_is_valid_stctl(union scsw *scsw) | |
568 | { | |
569 | /* Only valid if pmcw.dnv == 1*/ | |
570 | return 1; | |
571 | } | |
572 | EXPORT_SYMBOL(scsw_tm_is_valid_stctl); | |
573 | ||
574 | /** | |
575 | * scsw_tm_is_valid_dstat - check dstat field validity | |
576 | * @scsw: pointer to scsw | |
577 | * | |
578 | * Return non-zero if the dstat field of the specified transport mode scsw is | |
579 | * valid, zero otherwise. | |
580 | */ | |
581 | int scsw_tm_is_valid_dstat(union scsw *scsw) | |
582 | { | |
583 | return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) && | |
584 | (scsw->tm.cc != 3); | |
585 | } | |
586 | EXPORT_SYMBOL(scsw_tm_is_valid_dstat); | |
587 | ||
588 | /** | |
589 | * scsw_tm_is_valid_cstat - check cstat field validity | |
590 | * @scsw: pointer to scsw | |
591 | * | |
592 | * Return non-zero if the cstat field of the specified transport mode scsw is | |
593 | * valid, zero otherwise. | |
594 | */ | |
595 | int scsw_tm_is_valid_cstat(union scsw *scsw) | |
596 | { | |
597 | return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) && | |
598 | (scsw->tm.cc != 3); | |
599 | } | |
600 | EXPORT_SYMBOL(scsw_tm_is_valid_cstat); | |
601 | ||
602 | /** | |
603 | * scsw_tm_is_valid_fcxs - check fcxs field validity | |
604 | * @scsw: pointer to scsw | |
605 | * | |
606 | * Return non-zero if the fcxs field of the specified transport mode scsw is | |
607 | * valid, zero otherwise. | |
608 | */ | |
609 | int scsw_tm_is_valid_fcxs(union scsw *scsw) | |
610 | { | |
611 | return 1; | |
612 | } | |
613 | EXPORT_SYMBOL(scsw_tm_is_valid_fcxs); | |
614 | ||
615 | /** | |
616 | * scsw_tm_is_valid_schxs - check schxs field validity | |
617 | * @scsw: pointer to scsw | |
618 | * | |
619 | * Return non-zero if the schxs field of the specified transport mode scsw is | |
620 | * valid, zero otherwise. | |
621 | */ | |
622 | int scsw_tm_is_valid_schxs(union scsw *scsw) | |
623 | { | |
624 | return (scsw->tm.cstat & (SCHN_STAT_PROG_CHECK | | |
625 | SCHN_STAT_INTF_CTRL_CHK | | |
626 | SCHN_STAT_PROT_CHECK | | |
627 | SCHN_STAT_CHN_DATA_CHK)); | |
628 | } | |
629 | EXPORT_SYMBOL(scsw_tm_is_valid_schxs); | |
630 | ||
631 | /** | |
632 | * scsw_is_valid_actl - check actl field validity | |
633 | * @scsw: pointer to scsw | |
634 | * | |
635 | * Return non-zero if the actl field of the specified scsw is valid, | |
636 | * regardless of whether it is a transport mode or command mode scsw. | |
637 | * Return zero if the field does not contain a valid value. | |
638 | */ | |
639 | int scsw_is_valid_actl(union scsw *scsw) | |
640 | { | |
641 | if (scsw_is_tm(scsw)) | |
642 | return scsw_tm_is_valid_actl(scsw); | |
643 | else | |
644 | return scsw_cmd_is_valid_actl(scsw); | |
645 | } | |
646 | EXPORT_SYMBOL(scsw_is_valid_actl); | |
647 | ||
648 | /** | |
649 | * scsw_is_valid_cc - check cc field validity | |
650 | * @scsw: pointer to scsw | |
651 | * | |
652 | * Return non-zero if the cc field of the specified scsw is valid, | |
653 | * regardless of whether it is a transport mode or command mode scsw. | |
654 | * Return zero if the field does not contain a valid value. | |
655 | */ | |
656 | int scsw_is_valid_cc(union scsw *scsw) | |
657 | { | |
658 | if (scsw_is_tm(scsw)) | |
659 | return scsw_tm_is_valid_cc(scsw); | |
660 | else | |
661 | return scsw_cmd_is_valid_cc(scsw); | |
662 | } | |
663 | EXPORT_SYMBOL(scsw_is_valid_cc); | |
664 | ||
665 | /** | |
666 | * scsw_is_valid_cstat - check cstat field validity | |
667 | * @scsw: pointer to scsw | |
668 | * | |
669 | * Return non-zero if the cstat field of the specified scsw is valid, | |
670 | * regardless of whether it is a transport mode or command mode scsw. | |
671 | * Return zero if the field does not contain a valid value. | |
672 | */ | |
673 | int scsw_is_valid_cstat(union scsw *scsw) | |
674 | { | |
675 | if (scsw_is_tm(scsw)) | |
676 | return scsw_tm_is_valid_cstat(scsw); | |
677 | else | |
678 | return scsw_cmd_is_valid_cstat(scsw); | |
679 | } | |
680 | EXPORT_SYMBOL(scsw_is_valid_cstat); | |
681 | ||
682 | /** | |
683 | * scsw_is_valid_dstat - check dstat field validity | |
684 | * @scsw: pointer to scsw | |
685 | * | |
686 | * Return non-zero if the dstat field of the specified scsw is valid, | |
687 | * regardless of whether it is a transport mode or command mode scsw. | |
688 | * Return zero if the field does not contain a valid value. | |
689 | */ | |
690 | int scsw_is_valid_dstat(union scsw *scsw) | |
691 | { | |
692 | if (scsw_is_tm(scsw)) | |
693 | return scsw_tm_is_valid_dstat(scsw); | |
694 | else | |
695 | return scsw_cmd_is_valid_dstat(scsw); | |
696 | } | |
697 | EXPORT_SYMBOL(scsw_is_valid_dstat); | |
698 | ||
699 | /** | |
700 | * scsw_is_valid_ectl - check ectl field validity | |
701 | * @scsw: pointer to scsw | |
702 | * | |
703 | * Return non-zero if the ectl field of the specified scsw is valid, | |
704 | * regardless of whether it is a transport mode or command mode scsw. | |
705 | * Return zero if the field does not contain a valid value. | |
706 | */ | |
707 | int scsw_is_valid_ectl(union scsw *scsw) | |
708 | { | |
709 | if (scsw_is_tm(scsw)) | |
710 | return scsw_tm_is_valid_ectl(scsw); | |
711 | else | |
712 | return scsw_cmd_is_valid_ectl(scsw); | |
713 | } | |
714 | EXPORT_SYMBOL(scsw_is_valid_ectl); | |
715 | ||
716 | /** | |
717 | * scsw_is_valid_eswf - check eswf field validity | |
718 | * @scsw: pointer to scsw | |
719 | * | |
720 | * Return non-zero if the eswf field of the specified scsw is valid, | |
721 | * regardless of whether it is a transport mode or command mode scsw. | |
722 | * Return zero if the field does not contain a valid value. | |
723 | */ | |
724 | int scsw_is_valid_eswf(union scsw *scsw) | |
725 | { | |
726 | if (scsw_is_tm(scsw)) | |
727 | return scsw_tm_is_valid_eswf(scsw); | |
728 | else | |
729 | return scsw_cmd_is_valid_eswf(scsw); | |
730 | } | |
731 | EXPORT_SYMBOL(scsw_is_valid_eswf); | |
732 | ||
733 | /** | |
734 | * scsw_is_valid_fctl - check fctl field validity | |
735 | * @scsw: pointer to scsw | |
736 | * | |
737 | * Return non-zero if the fctl field of the specified scsw is valid, | |
738 | * regardless of whether it is a transport mode or command mode scsw. | |
739 | * Return zero if the field does not contain a valid value. | |
740 | */ | |
741 | int scsw_is_valid_fctl(union scsw *scsw) | |
742 | { | |
743 | if (scsw_is_tm(scsw)) | |
744 | return scsw_tm_is_valid_fctl(scsw); | |
745 | else | |
746 | return scsw_cmd_is_valid_fctl(scsw); | |
747 | } | |
748 | EXPORT_SYMBOL(scsw_is_valid_fctl); | |
749 | ||
750 | /** | |
751 | * scsw_is_valid_key - check key field validity | |
752 | * @scsw: pointer to scsw | |
753 | * | |
754 | * Return non-zero if the key field of the specified scsw is valid, | |
755 | * regardless of whether it is a transport mode or command mode scsw. | |
756 | * Return zero if the field does not contain a valid value. | |
757 | */ | |
758 | int scsw_is_valid_key(union scsw *scsw) | |
759 | { | |
760 | if (scsw_is_tm(scsw)) | |
761 | return scsw_tm_is_valid_key(scsw); | |
762 | else | |
763 | return scsw_cmd_is_valid_key(scsw); | |
764 | } | |
765 | EXPORT_SYMBOL(scsw_is_valid_key); | |
766 | ||
767 | /** | |
768 | * scsw_is_valid_pno - check pno field validity | |
769 | * @scsw: pointer to scsw | |
770 | * | |
771 | * Return non-zero if the pno field of the specified scsw is valid, | |
772 | * regardless of whether it is a transport mode or command mode scsw. | |
773 | * Return zero if the field does not contain a valid value. | |
774 | */ | |
775 | int scsw_is_valid_pno(union scsw *scsw) | |
776 | { | |
777 | if (scsw_is_tm(scsw)) | |
778 | return scsw_tm_is_valid_pno(scsw); | |
779 | else | |
780 | return scsw_cmd_is_valid_pno(scsw); | |
781 | } | |
782 | EXPORT_SYMBOL(scsw_is_valid_pno); | |
783 | ||
784 | /** | |
785 | * scsw_is_valid_stctl - check stctl field validity | |
786 | * @scsw: pointer to scsw | |
787 | * | |
788 | * Return non-zero if the stctl field of the specified scsw is valid, | |
789 | * regardless of whether it is a transport mode or command mode scsw. | |
790 | * Return zero if the field does not contain a valid value. | |
791 | */ | |
792 | int scsw_is_valid_stctl(union scsw *scsw) | |
793 | { | |
794 | if (scsw_is_tm(scsw)) | |
795 | return scsw_tm_is_valid_stctl(scsw); | |
796 | else | |
797 | return scsw_cmd_is_valid_stctl(scsw); | |
798 | } | |
799 | EXPORT_SYMBOL(scsw_is_valid_stctl); | |
800 | ||
801 | /** | |
802 | * scsw_cmd_is_solicited - check for solicited scsw | |
803 | * @scsw: pointer to scsw | |
804 | * | |
805 | * Return non-zero if the command mode scsw indicates that the associated | |
806 | * status condition is solicited, zero if it is unsolicited. | |
807 | */ | |
808 | int scsw_cmd_is_solicited(union scsw *scsw) | |
809 | { | |
810 | return (scsw->cmd.cc != 0) || (scsw->cmd.stctl != | |
811 | (SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS)); | |
812 | } | |
813 | EXPORT_SYMBOL(scsw_cmd_is_solicited); | |
814 | ||
815 | /** | |
816 | * scsw_tm_is_solicited - check for solicited scsw | |
817 | * @scsw: pointer to scsw | |
818 | * | |
819 | * Return non-zero if the transport mode scsw indicates that the associated | |
820 | * status condition is solicited, zero if it is unsolicited. | |
821 | */ | |
822 | int scsw_tm_is_solicited(union scsw *scsw) | |
823 | { | |
824 | return (scsw->tm.cc != 0) || (scsw->tm.stctl != | |
825 | (SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS)); | |
826 | } | |
827 | EXPORT_SYMBOL(scsw_tm_is_solicited); | |
828 | ||
829 | /** | |
830 | * scsw_is_solicited - check for solicited scsw | |
831 | * @scsw: pointer to scsw | |
832 | * | |
833 | * Return non-zero if the transport or command mode scsw indicates that the | |
834 | * associated status condition is solicited, zero if it is unsolicited. | |
835 | */ | |
836 | int scsw_is_solicited(union scsw *scsw) | |
837 | { | |
838 | if (scsw_is_tm(scsw)) | |
839 | return scsw_tm_is_solicited(scsw); | |
840 | else | |
841 | return scsw_cmd_is_solicited(scsw); | |
842 | } | |
843 | EXPORT_SYMBOL(scsw_is_solicited); |