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