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1/*
2 * drivers/s390/net/iucv.h
3 * IUCV base support.
4 *
5 * S390 version
6 * Copyright (C) 2000 IBM Corporation
7 * Author(s):Alan Altmark (Alan_Altmark@us.ibm.com)
8 * Xenia Tkatschow (xenia@us.ibm.com)
9 *
10 *
11 * Functionality:
12 * To explore any of the IUCV functions, one must first register
13 * their program using iucv_register_program(). Once your program has
14 * successfully completed a register, it can exploit the other functions.
15 * For furthur reference on all IUCV functionality, refer to the
16 * CP Programming Services book, also available on the web
17 * thru www.ibm.com/s390/vm/pubs, manual # SC24-5760
18 *
19 * Definition of Return Codes
20 * -All positive return codes including zero are reflected back
21 * from CP except for iucv_register_program. The definition of each
22 * return code can be found in CP Programming Services book.
23 * Also available on the web thru www.ibm.com/s390/vm/pubs, manual # SC24-5760
24 * - Return Code of:
25 * (-EINVAL) Invalid value
26 * (-ENOMEM) storage allocation failed
27 * pgmask defined in iucv_register_program will be set depending on input
28 * paramters.
29 *
30 */
31
32#include <linux/types.h>
33#include <asm/debug.h>
34
35/**
36 * Debug Facility stuff
37 */
38#define IUCV_DBF_SETUP_NAME "iucv_setup"
39#define IUCV_DBF_SETUP_LEN 32
40#define IUCV_DBF_SETUP_INDEX 1
41#define IUCV_DBF_SETUP_NR_AREAS 1
42#define IUCV_DBF_SETUP_LEVEL 3
43
44#define IUCV_DBF_DATA_NAME "iucv_data"
45#define IUCV_DBF_DATA_LEN 128
46#define IUCV_DBF_DATA_INDEX 1
47#define IUCV_DBF_DATA_NR_AREAS 1
48#define IUCV_DBF_DATA_LEVEL 2
49
50#define IUCV_DBF_TRACE_NAME "iucv_trace"
51#define IUCV_DBF_TRACE_LEN 16
52#define IUCV_DBF_TRACE_INDEX 2
53#define IUCV_DBF_TRACE_NR_AREAS 1
54#define IUCV_DBF_TRACE_LEVEL 3
55
56#define IUCV_DBF_TEXT(name,level,text) \
57 do { \
58 debug_text_event(iucv_dbf_##name,level,text); \
59 } while (0)
60
61#define IUCV_DBF_HEX(name,level,addr,len) \
62 do { \
63 debug_event(iucv_dbf_##name,level,(void*)(addr),len); \
64 } while (0)
65
66DECLARE_PER_CPU(char[256], iucv_dbf_txt_buf);
67
68#define IUCV_DBF_TEXT_(name,level,text...) \
69 do { \
70 char* iucv_dbf_txt_buf = get_cpu_var(iucv_dbf_txt_buf); \
71 sprintf(iucv_dbf_txt_buf, text); \
72 debug_text_event(iucv_dbf_##name,level,iucv_dbf_txt_buf); \
73 put_cpu_var(iucv_dbf_txt_buf); \
74 } while (0)
75
76#define IUCV_DBF_SPRINTF(name,level,text...) \
77 do { \
78 debug_sprintf_event(iucv_dbf_trace, level, ##text ); \
79 debug_sprintf_event(iucv_dbf_trace, level, text ); \
80 } while (0)
81
82/**
83 * some more debug stuff
84 */
85#define IUCV_HEXDUMP16(importance,header,ptr) \
86PRINT_##importance(header "%02x %02x %02x %02x %02x %02x %02x %02x " \
87 "%02x %02x %02x %02x %02x %02x %02x %02x\n", \
88 *(((char*)ptr)),*(((char*)ptr)+1),*(((char*)ptr)+2), \
89 *(((char*)ptr)+3),*(((char*)ptr)+4),*(((char*)ptr)+5), \
90 *(((char*)ptr)+6),*(((char*)ptr)+7),*(((char*)ptr)+8), \
91 *(((char*)ptr)+9),*(((char*)ptr)+10),*(((char*)ptr)+11), \
92 *(((char*)ptr)+12),*(((char*)ptr)+13), \
93 *(((char*)ptr)+14),*(((char*)ptr)+15)); \
94PRINT_##importance(header "%02x %02x %02x %02x %02x %02x %02x %02x " \
95 "%02x %02x %02x %02x %02x %02x %02x %02x\n", \
96 *(((char*)ptr)+16),*(((char*)ptr)+17), \
97 *(((char*)ptr)+18),*(((char*)ptr)+19), \
98 *(((char*)ptr)+20),*(((char*)ptr)+21), \
99 *(((char*)ptr)+22),*(((char*)ptr)+23), \
100 *(((char*)ptr)+24),*(((char*)ptr)+25), \
101 *(((char*)ptr)+26),*(((char*)ptr)+27), \
102 *(((char*)ptr)+28),*(((char*)ptr)+29), \
103 *(((char*)ptr)+30),*(((char*)ptr)+31));
104
105static inline void
106iucv_hex_dump(unsigned char *buf, size_t len)
107{
108 size_t i;
109
110 for (i = 0; i < len; i++) {
111 if (i && !(i % 16))
112 printk("\n");
113 printk("%02x ", *(buf + i));
114 }
115 printk("\n");
116}
117/**
118 * end of debug stuff
119 */
120
121#define uchar unsigned char
122#define ushort unsigned short
123#define ulong unsigned long
124#define iucv_handle_t void *
125
126/* flags1:
127 * All flags are defined in the field IPFLAGS1 of each function
128 * and can be found in CP Programming Services.
129 * IPLOCAL - Indicates the connect can only be satisfied on the
130 * local system
131 * IPPRTY - Indicates a priority message
132 * IPQUSCE - Indicates you do not want to receive messages on a
133 * path until an iucv_resume is issued
134 * IPRMDATA - Indicates that the message is in the parameter list
135 */
136#define IPLOCAL 0x01
137#define IPPRTY 0x20
138#define IPQUSCE 0x40
139#define IPRMDATA 0x80
140
141/* flags1_out:
142 * All flags are defined in the output field of IPFLAGS1 for each function
143 * and can be found in CP Programming Services.
144 * IPNORPY - Specifies this is a one-way message and no reply is expected.
145 * IPPRTY - Indicates a priority message is permitted. Defined in flags1.
146 */
147#define IPNORPY 0x10
148
149#define Nonpriority_MessagePendingInterruptsFlag 0x80
150#define Priority_MessagePendingInterruptsFlag 0x40
151#define Nonpriority_MessageCompletionInterruptsFlag 0x20
152#define Priority_MessageCompletionInterruptsFlag 0x10
153#define IUCVControlInterruptsFlag 0x08
154#define AllInterrupts 0xf8
155/*
156 * Mapping of external interrupt buffers should be used with the corresponding
157 * interrupt types.
158 * Names: iucv_ConnectionPending -> connection pending
159 * iucv_ConnectionComplete -> connection complete
160 * iucv_ConnectionSevered -> connection severed
161 * iucv_ConnectionQuiesced -> connection quiesced
162 * iucv_ConnectionResumed -> connection resumed
163 * iucv_MessagePending -> message pending
164 * iucv_MessageComplete -> message complete
165 */
166typedef struct {
167 u16 ippathid;
168 uchar ipflags1;
169 uchar iptype;
170 u16 ipmsglim;
171 u16 res1;
172 uchar ipvmid[8];
173 uchar ipuser[16];
174 u32 res3;
175 uchar ippollfg;
176 uchar res4[3];
177} iucv_ConnectionPending;
178
179typedef struct {
180 u16 ippathid;
181 uchar ipflags1;
182 uchar iptype;
183 u16 ipmsglim;
184 u16 res1;
185 uchar res2[8];
186 uchar ipuser[16];
187 u32 res3;
188 uchar ippollfg;
189 uchar res4[3];
190} iucv_ConnectionComplete;
191
192typedef struct {
193 u16 ippathid;
194 uchar res1;
195 uchar iptype;
196 u32 res2;
197 uchar res3[8];
198 uchar ipuser[16];
199 u32 res4;
200 uchar ippollfg;
201 uchar res5[3];
202} iucv_ConnectionSevered;
203
204typedef struct {
205 u16 ippathid;
206 uchar res1;
207 uchar iptype;
208 u32 res2;
209 uchar res3[8];
210 uchar ipuser[16];
211 u32 res4;
212 uchar ippollfg;
213 uchar res5[3];
214} iucv_ConnectionQuiesced;
215
216typedef struct {
217 u16 ippathid;
218 uchar res1;
219 uchar iptype;
220 u32 res2;
221 uchar res3[8];
222 uchar ipuser[16];
223 u32 res4;
224 uchar ippollfg;
225 uchar res5[3];
226} iucv_ConnectionResumed;
227
228typedef struct {
229 u16 ippathid;
230 uchar ipflags1;
231 uchar iptype;
232 u32 ipmsgid;
233 u32 iptrgcls;
234 union u2 {
235 u32 iprmmsg1_u32;
236 uchar iprmmsg1[4];
237 } ln1msg1;
238 union u1 {
239 u32 ipbfln1f;
240 uchar iprmmsg2[4];
241 } ln1msg2;
242 u32 res1[3];
243 u32 ipbfln2f;
244 uchar ippollfg;
245 uchar res2[3];
246} iucv_MessagePending;
247
248typedef struct {
249 u16 ippathid;
250 uchar ipflags1;
251 uchar iptype;
252 u32 ipmsgid;
253 u32 ipaudit;
254 uchar iprmmsg[8];
255 u32 ipsrccls;
256 u32 ipmsgtag;
257 u32 res;
258 u32 ipbfln2f;
259 uchar ippollfg;
260 uchar res2[3];
261} iucv_MessageComplete;
262
263/*
264 * iucv_interrupt_ops_t: Is a vector of functions that handle
265 * IUCV interrupts.
266 * Parameter list:
267 * eib - is a pointer to a 40-byte area described
268 * with one of the structures above.
269 * pgm_data - this data is strictly for the
270 * interrupt handler that is passed by
271 * the application. This may be an address
272 * or token.
273*/
274typedef struct {
275 void (*ConnectionPending) (iucv_ConnectionPending * eib,
276 void *pgm_data);
277 void (*ConnectionComplete) (iucv_ConnectionComplete * eib,
278 void *pgm_data);
279 void (*ConnectionSevered) (iucv_ConnectionSevered * eib,
280 void *pgm_data);
281 void (*ConnectionQuiesced) (iucv_ConnectionQuiesced * eib,
282 void *pgm_data);
283 void (*ConnectionResumed) (iucv_ConnectionResumed * eib,
284 void *pgm_data);
285 void (*MessagePending) (iucv_MessagePending * eib, void *pgm_data);
286 void (*MessageComplete) (iucv_MessageComplete * eib, void *pgm_data);
287} iucv_interrupt_ops_t;
288
289/*
290 *iucv_array_t : Defines buffer array.
291 * Inside the array may be 31- bit addresses and 31-bit lengths.
292*/
293typedef struct {
294 u32 address;
295 u32 length;
296} iucv_array_t __attribute__ ((aligned (8)));
297
298extern struct bus_type iucv_bus;
299extern struct device *iucv_root;
300
301/* -prototypes- */
302/*
303 * Name: iucv_register_program
304 * Purpose: Registers an application with IUCV
305 * Input: prmname - user identification
306 * userid - machine identification
307 * pgmmask - indicates which bits in the prmname and userid combined will be
308 * used to determine who is given control
309 * ops - address of vector of interrupt handlers
310 * pgm_data- application data passed to interrupt handlers
311 * Output: NA
312 * Return: address of handler
313 * (0) - Error occurred, registration not completed.
314 * NOTE: Exact cause of failure will be recorded in syslog.
315*/
316iucv_handle_t iucv_register_program (uchar pgmname[16],
317 uchar userid[8],
318 uchar pgmmask[24],
319 iucv_interrupt_ops_t * ops,
320 void *pgm_data);
321
322/*
323 * Name: iucv_unregister_program
324 * Purpose: Unregister application with IUCV
325 * Input: address of handler
326 * Output: NA
327 * Return: (0) - Normal return
328 * (-EINVAL) - Internal error, wild pointer
329*/
330int iucv_unregister_program (iucv_handle_t handle);
331
332/*
333 * Name: iucv_accept
334 * Purpose: This function is issued after the user receives a Connection Pending external
335 * interrupt and now wishes to complete the IUCV communication path.
336 * Input: pathid - u16 , Path identification number
337 * msglim_reqstd - u16, The number of outstanding messages requested.
338 * user_data - uchar[16], Data specified by the iucv_connect function.
339 * flags1 - int, Contains options for this path.
340 * -IPPRTY - 0x20- Specifies if you want to send priority message.
341 * -IPRMDATA - 0x80, Specifies whether your program can handle a message
342 * in the parameter list.
343 * -IPQUSCE - 0x40, Specifies whether you want to quiesce the path being
344 * established.
345 * handle - iucv_handle_t, Address of handler.
346 * pgm_data - void *, Application data passed to interrupt handlers.
347 * flags1_out - int * Contains information about the path
348 * - IPPRTY - 0x20, Indicates you may send priority messages.
349 * msglim - *u16, Number of outstanding messages.
350 * Output: return code from CP IUCV call.
351*/
352
353int iucv_accept (u16 pathid,
354 u16 msglim_reqstd,
355 uchar user_data[16],
356 int flags1,
357 iucv_handle_t handle,
358 void *pgm_data, int *flags1_out, u16 * msglim);
359
360/*
361 * Name: iucv_connect
362 * Purpose: This function establishes an IUCV path. Although the connect may complete
363 * successfully, you are not able to use the path until you receive an IUCV
364 * Connection Complete external interrupt.
365 * Input: pathid - u16 *, Path identification number
366 * msglim_reqstd - u16, Number of outstanding messages requested
367 * user_data - uchar[16], 16-byte user data
368 * userid - uchar[8], User identification
369 * system_name - uchar[8], 8-byte identifying the system name
370 * flags1 - int, Contains options for this path.
371 * -IPPRTY - 0x20, Specifies if you want to send priority message.
372 * -IPRMDATA - 0x80, Specifies whether your program can handle a message
373 * in the parameter list.
374 * -IPQUSCE - 0x40, Specifies whether you want to quiesce the path being
375 * established.
376 * -IPLOCAL - 0X01, Allows an application to force the partner to be on
377 * the local system. If local is specified then target class cannot be
378 * specified.
379 * flags1_out - int * Contains information about the path
380 * - IPPRTY - 0x20, Indicates you may send priority messages.
381 * msglim - * u16, Number of outstanding messages
382 * handle - iucv_handle_t, Address of handler
383 * pgm_data - void *, Application data passed to interrupt handlers
384 * Output: return code from CP IUCV call
385 * rc - return code from iucv_declare_buffer
386 * -EINVAL - Invalid handle passed by application
387 * -EINVAL - Pathid address is NULL
388 * add_pathid_result - Return code from internal function add_pathid
389*/
390int
391 iucv_connect (u16 * pathid,
392 u16 msglim_reqstd,
393 uchar user_data[16],
394 uchar userid[8],
395 uchar system_name[8],
396 int flags1,
397 int *flags1_out,
398 u16 * msglim, iucv_handle_t handle, void *pgm_data);
399
400/*
401 * Name: iucv_purge
402 * Purpose: This function cancels a message that you have sent.
403 * Input: pathid - Path identification number.
404 * msgid - Specifies the message ID of the message to be purged.
405 * srccls - Specifies the source message class.
406 * Output: audit - Contains information about asynchronous error
407 * that may have affected the normal completion
408 * of this message.
409 * Return: Return code from CP IUCV call.
410*/
411int iucv_purge (u16 pathid, u32 msgid, u32 srccls, __u32 *audit);
412/*
413 * Name: iucv_query_maxconn
414 * Purpose: This function determines the maximum number of communication paths you
415 * may establish.
416 * Return: maxconn - ulong, Maximum number of connection the virtual machine may
417 * establish.
418*/
419ulong iucv_query_maxconn (void);
420
421/*
422 * Name: iucv_query_bufsize
423 * Purpose: This function determines how large an external interrupt
424 * buffer IUCV requires to store information.
425 * Return: bufsize - ulong, Size of external interrupt buffer.
426 */
427ulong iucv_query_bufsize (void);
428
429/*
430 * Name: iucv_quiesce
431 * Purpose: This function temporarily suspends incoming messages on an
432 * IUCV path. You can later reactivate the path by invoking
433 * the iucv_resume function.
434 * Input: pathid - Path identification number
435 * user_data - 16-bytes of user data
436 * Output: NA
437 * Return: Return code from CP IUCV call.
438*/
439int iucv_quiesce (u16 pathid, uchar user_data[16]);
440
441/*
442 * Name: iucv_receive
443 * Purpose: This function receives messages that are being sent to you
444 * over established paths. Data will be returned in buffer for length of
445 * buflen.
446 * Input:
447 * pathid - Path identification number.
448 * buffer - Address of buffer to receive.
449 * buflen - Length of buffer to receive.
450 * msgid - Specifies the message ID.
451 * trgcls - Specifies target class.
452 * Output:
453 * flags1_out: int *, Contains information about this path.
454 * IPNORPY - 0x10 Specifies this is a one-way message and no reply is
455 * expected.
456 * IPPRTY - 0x20 Specifies if you want to send priority message.
457 * IPRMDATA - 0x80 specifies the data is contained in the parameter list
458 * residual_buffer - address of buffer updated by the number
459 * of bytes you have received.
460 * residual_length -
461 * Contains one of the following values, if the receive buffer is:
462 * The same length as the message, this field is zero.
463 * Longer than the message, this field contains the number of
464 * bytes remaining in the buffer.
465 * Shorter than the message, this field contains the residual
466 * count (that is, the number of bytes remaining in the
467 * message that does not fit into the buffer. In this
468 * case b2f0_result = 5.
469 * Return: Return code from CP IUCV call.
470 * (-EINVAL) - buffer address is pointing to NULL
471*/
472int iucv_receive (u16 pathid,
473 u32 msgid,
474 u32 trgcls,
475 void *buffer,
476 ulong buflen,
477 int *flags1_out,
478 ulong * residual_buffer, ulong * residual_length);
479
480 /*
481 * Name: iucv_receive_array
482 * Purpose: This function receives messages that are being sent to you
483 * over established paths. Data will be returned in first buffer for
484 * length of first buffer.
485 * Input: pathid - Path identification number.
486 * msgid - specifies the message ID.
487 * trgcls - Specifies target class.
488 * buffer - Address of array of buffers.
489 * buflen - Total length of buffers.
490 * Output:
491 * flags1_out: int *, Contains information about this path.
492 * IPNORPY - 0x10 Specifies this is a one-way message and no reply is
493 * expected.
494 * IPPRTY - 0x20 Specifies if you want to send priority message.
495 * IPRMDATA - 0x80 specifies the data is contained in the parameter list
496 * residual_buffer - address points to the current list entry IUCV
497 * is working on.
498 * residual_length -
499 * Contains one of the following values, if the receive buffer is:
500 * The same length as the message, this field is zero.
501 * Longer than the message, this field contains the number of
502 * bytes remaining in the buffer.
503 * Shorter than the message, this field contains the residual
504 * count (that is, the number of bytes remaining in the
505 * message that does not fit into the buffer. In this
506 * case b2f0_result = 5.
507 * Return: Return code from CP IUCV call.
508 * (-EINVAL) - Buffer address is NULL.
509 */
510int iucv_receive_array (u16 pathid,
511 u32 msgid,
512 u32 trgcls,
513 iucv_array_t * buffer,
514 ulong buflen,
515 int *flags1_out,
516 ulong * residual_buffer, ulong * residual_length);
517
518/*
519 * Name: iucv_reject
520 * Purpose: The reject function refuses a specified message. Between the
521 * time you are notified of a message and the time that you
522 * complete the message, the message may be rejected.
523 * Input: pathid - Path identification number.
524 * msgid - Specifies the message ID.
525 * trgcls - Specifies target class.
526 * Output: NA
527 * Return: Return code from CP IUCV call.
528*/
529int iucv_reject (u16 pathid, u32 msgid, u32 trgcls);
530
531/*
532 * Name: iucv_reply
533 * Purpose: This function responds to the two-way messages that you
534 * receive. You must identify completely the message to
535 * which you wish to reply. ie, pathid, msgid, and trgcls.
536 * Input: pathid - Path identification number.
537 * msgid - Specifies the message ID.
538 * trgcls - Specifies target class.
539 * flags1 - Option for path.
540 * IPPRTY- 0x20, Specifies if you want to send priority message.
541 * buffer - Address of reply buffer.
542 * buflen - Length of reply buffer.
543 * Output: residual_buffer - Address of buffer updated by the number
544 * of bytes you have moved.
545 * residual_length - Contains one of the following values:
546 * If the answer buffer is the same length as the reply, this field
547 * contains zero.
548 * If the answer buffer is longer than the reply, this field contains
549 * the number of bytes remaining in the buffer.
550 * If the answer buffer is shorter than the reply, this field contains
551 * a residual count (that is, the number of bytes remianing in the
552 * reply that does not fit into the buffer. In this
553 * case b2f0_result = 5.
554 * Return: Return code from CP IUCV call.
555 * (-EINVAL) - Buffer address is NULL.
556*/
557int iucv_reply (u16 pathid,
558 u32 msgid,
559 u32 trgcls,
560 int flags1,
561 void *buffer, ulong buflen, ulong * residual_buffer,
562 ulong * residual_length);
563
564/*
565 * Name: iucv_reply_array
566 * Purpose: This function responds to the two-way messages that you
567 * receive. You must identify completely the message to
568 * which you wish to reply. ie, pathid, msgid, and trgcls.
569 * The array identifies a list of addresses and lengths of
570 * discontiguous buffers that contains the reply data.
571 * Input: pathid - Path identification number
572 * msgid - Specifies the message ID.
573 * trgcls - Specifies target class.
574 * flags1 - Option for path.
575 * IPPRTY- 0x20, Specifies if you want to send priority message.
576 * buffer - Address of array of reply buffers.
577 * buflen - Total length of reply buffers.
578 * Output: residual_buffer - Address of buffer which IUCV is currently working on.
579 * residual_length - Contains one of the following values:
580 * If the answer buffer is the same length as the reply, this field
581 * contains zero.
582 * If the answer buffer is longer than the reply, this field contains
583 * the number of bytes remaining in the buffer.
584 * If the answer buffer is shorter than the reply, this field contains
585 * a residual count (that is, the number of bytes remianing in the
586 * reply that does not fit into the buffer. In this
587 * case b2f0_result = 5.
588 * Return: Return code from CP IUCV call.
589 * (-EINVAL) - Buffer address is NULL.
590*/
591int iucv_reply_array (u16 pathid,
592 u32 msgid,
593 u32 trgcls,
594 int flags1,
595 iucv_array_t * buffer,
596 ulong buflen, ulong * residual_address,
597 ulong * residual_length);
598
599/*
600 * Name: iucv_reply_prmmsg
601 * Purpose: This function responds to the two-way messages that you
602 * receive. You must identify completely the message to
603 * which you wish to reply. ie, pathid, msgid, and trgcls.
604 * Prmmsg signifies the data is moved into the
605 * parameter list.
606 * Input: pathid - Path identification number.
607 * msgid - Specifies the message ID.
608 * trgcls - Specifies target class.
609 * flags1 - Option for path.
610 * IPPRTY- 0x20 Specifies if you want to send priority message.
611 * prmmsg - 8-bytes of data to be placed into the parameter.
612 * list.
613 * Output: NA
614 * Return: Return code from CP IUCV call.
615*/
616int iucv_reply_prmmsg (u16 pathid,
617 u32 msgid, u32 trgcls, int flags1, uchar prmmsg[8]);
618
619/*
620 * Name: iucv_resume
621 * Purpose: This function restores communications over a quiesced path
622 * Input: pathid - Path identification number.
623 * user_data - 16-bytes of user data.
624 * Output: NA
625 * Return: Return code from CP IUCV call.
626*/
627int iucv_resume (u16 pathid, uchar user_data[16]);
628
629/*
630 * Name: iucv_send
631 * Purpose: This function transmits data to another application.
632 * Data to be transmitted is in a buffer and this is a
633 * one-way message and the receiver will not reply to the
634 * message.
635 * Input: pathid - Path identification number.
636 * trgcls - Specifies target class.
637 * srccls - Specifies the source message class.
638 * msgtag - Specifies a tag to be associated with the message.
639 * flags1 - Option for path.
640 * IPPRTY- 0x20 Specifies if you want to send priority message.
641 * buffer - Address of send buffer.
642 * buflen - Length of send buffer.
643 * Output: msgid - Specifies the message ID.
644 * Return: Return code from CP IUCV call.
645 * (-EINVAL) - Buffer address is NULL.
646*/
647int iucv_send (u16 pathid,
648 u32 * msgid,
649 u32 trgcls,
650 u32 srccls, u32 msgtag, int flags1, void *buffer, ulong buflen);
651
652/*
653 * Name: iucv_send_array
654 * Purpose: This function transmits data to another application.
655 * The contents of buffer is the address of the array of
656 * addresses and lengths of discontiguous buffers that hold
657 * the message text. This is a one-way message and the
658 * receiver will not reply to the message.
659 * Input: pathid - Path identification number.
660 * trgcls - Specifies target class.
661 * srccls - Specifies the source message class.
662 * msgtag - Specifies a tag to be associated witht the message.
663 * flags1 - Option for path.
664 * IPPRTY- specifies if you want to send priority message.
665 * buffer - Address of array of send buffers.
666 * buflen - Total length of send buffers.
667 * Output: msgid - Specifies the message ID.
668 * Return: Return code from CP IUCV call.
669 * (-EINVAL) - Buffer address is NULL.
670*/
671int iucv_send_array (u16 pathid,
672 u32 * msgid,
673 u32 trgcls,
674 u32 srccls,
675 u32 msgtag,
676 int flags1, iucv_array_t * buffer, ulong buflen);
677
678/*
679 * Name: iucv_send_prmmsg
680 * Purpose: This function transmits data to another application.
681 * Prmmsg specifies that the 8-bytes of data are to be moved
682 * into the parameter list. This is a one-way message and the
683 * receiver will not reply to the message.
684 * Input: pathid - Path identification number.
685 * trgcls - Specifies target class.
686 * srccls - Specifies the source message class.
687 * msgtag - Specifies a tag to be associated with the message.
688 * flags1 - Option for path.
689 * IPPRTY- 0x20 specifies if you want to send priority message.
690 * prmmsg - 8-bytes of data to be placed into parameter list.
691 * Output: msgid - Specifies the message ID.
692 * Return: Return code from CP IUCV call.
693*/
694int iucv_send_prmmsg (u16 pathid,
695 u32 * msgid,
696 u32 trgcls,
697 u32 srccls, u32 msgtag, int flags1, uchar prmmsg[8]);
698
699/*
700 * Name: iucv_send2way
701 * Purpose: This function transmits data to another application.
702 * Data to be transmitted is in a buffer. The receiver
703 * of the send is expected to reply to the message and
704 * a buffer is provided into which IUCV moves the reply
705 * to this message.
706 * Input: pathid - Path identification number.
707 * trgcls - Specifies target class.
708 * srccls - Specifies the source message class.
709 * msgtag - Specifies a tag associated with the message.
710 * flags1 - Option for path.
711 * IPPRTY- 0x20 Specifies if you want to send priority message.
712 * buffer - Address of send buffer.
713 * buflen - Length of send buffer.
714 * ansbuf - Address of buffer into which IUCV moves the reply of
715 * this message.
716 * anslen - Address of length of buffer.
717 * Output: msgid - Specifies the message ID.
718 * Return: Return code from CP IUCV call.
719 * (-EINVAL) - Buffer or ansbuf address is NULL.
720*/
721int iucv_send2way (u16 pathid,
722 u32 * msgid,
723 u32 trgcls,
724 u32 srccls,
725 u32 msgtag,
726 int flags1,
727 void *buffer, ulong buflen, void *ansbuf, ulong anslen);
728
729/*
730 * Name: iucv_send2way_array
731 * Purpose: This function transmits data to another application.
732 * The contents of buffer is the address of the array of
733 * addresses and lengths of discontiguous buffers that hold
734 * the message text. The receiver of the send is expected to
735 * reply to the message and a buffer is provided into which
736 * IUCV moves the reply to this message.
737 * Input: pathid - Path identification number.
738 * trgcls - Specifies target class.
739 * srccls - Specifies the source message class.
740 * msgtag - Specifies a tag to be associated with the message.
741 * flags1 - Option for path.
742 * IPPRTY- 0x20 Specifies if you want to send priority message.
743 * buffer - Sddress of array of send buffers.
744 * buflen - Total length of send buffers.
745 * ansbuf - Address of array of buffer into which IUCV moves the reply
746 * of this message.
747 * anslen - Address of length reply buffers.
748 * Output: msgid - Specifies the message ID.
749 * Return: Return code from CP IUCV call.
750 * (-EINVAL) - Buffer address is NULL.
751*/
752int iucv_send2way_array (u16 pathid,
753 u32 * msgid,
754 u32 trgcls,
755 u32 srccls,
756 u32 msgtag,
757 int flags1,
758 iucv_array_t * buffer,
759 ulong buflen, iucv_array_t * ansbuf, ulong anslen);
760
761/*
762 * Name: iucv_send2way_prmmsg
763 * Purpose: This function transmits data to another application.
764 * Prmmsg specifies that the 8-bytes of data are to be moved
765 * into the parameter list. This is a two-way message and the
766 * receiver of the message is expected to reply. A buffer
767 * is provided into which IUCV moves the reply to this
768 * message.
769 * Input: pathid - Rath identification number.
770 * trgcls - Specifies target class.
771 * srccls - Specifies the source message class.
772 * msgtag - Specifies a tag to be associated with the message.
773 * flags1 - Option for path.
774 * IPPRTY- 0x20 Specifies if you want to send priority message.
775 * prmmsg - 8-bytes of data to be placed in parameter list.
776 * ansbuf - Address of buffer into which IUCV moves the reply of
777 * this message.
778 * anslen - Address of length of buffer.
779 * Output: msgid - Specifies the message ID.
780 * Return: Return code from CP IUCV call.
781 * (-EINVAL) - Buffer address is NULL.
782*/
783int iucv_send2way_prmmsg (u16 pathid,
784 u32 * msgid,
785 u32 trgcls,
786 u32 srccls,
787 u32 msgtag,
788 ulong flags1,
789 uchar prmmsg[8], void *ansbuf, ulong anslen);
790
791/*
792 * Name: iucv_send2way_prmmsg_array
793 * Purpose: This function transmits data to another application.
794 * Prmmsg specifies that the 8-bytes of data are to be moved
795 * into the parameter list. This is a two-way message and the
796 * receiver of the message is expected to reply. A buffer
797 * is provided into which IUCV moves the reply to this
798 * message. The contents of ansbuf is the address of the
799 * array of addresses and lengths of discontiguous buffers
800 * that contain the reply.
801 * Input: pathid - Path identification number.
802 * trgcls - Specifies target class.
803 * srccls - Specifies the source message class.
804 * msgtag - Specifies a tag to be associated with the message.
805 * flags1 - Option for path.
806 * IPPRTY- 0x20 specifies if you want to send priority message.
807 * prmmsg - 8-bytes of data to be placed into the parameter list.
808 * ansbuf - Address of array of buffer into which IUCV moves the reply
809 * of this message.
810 * anslen - Address of length of reply buffers.
811 * Output: msgid - Specifies the message ID.
812 * Return: Return code from CP IUCV call.
813 * (-EINVAL) - Ansbuf address is NULL.
814*/
815int iucv_send2way_prmmsg_array (u16 pathid,
816 u32 * msgid,
817 u32 trgcls,
818 u32 srccls,
819 u32 msgtag,
820 int flags1,
821 uchar prmmsg[8],
822 iucv_array_t * ansbuf, ulong anslen);
823
824/*
825 * Name: iucv_setmask
826 * Purpose: This function enables or disables the following IUCV
827 * external interruptions: Nonpriority and priority message
828 * interrupts, nonpriority and priority reply interrupts.
829 * Input: SetMaskFlag - options for interrupts
830 * 0x80 - Nonpriority_MessagePendingInterruptsFlag
831 * 0x40 - Priority_MessagePendingInterruptsFlag
832 * 0x20 - Nonpriority_MessageCompletionInterruptsFlag
833 * 0x10 - Priority_MessageCompletionInterruptsFlag
834 * 0x08 - IUCVControlInterruptsFlag
835 * Output: NA
836 * Return: Return code from CP IUCV call.
837*/
838int iucv_setmask (int SetMaskFlag);
839
840/*
841 * Name: iucv_sever
842 * Purpose: This function terminates an IUCV path.
843 * Input: pathid - Path identification number.
844 * user_data - 16-bytes of user data.
845 * Output: NA
846 * Return: Return code from CP IUCV call.
847 * (-EINVAL) - Interal error, wild pointer.
848*/
849int iucv_sever (u16 pathid, uchar user_data[16]);