1 /* $FreeBSD$ */ 2 /* 3 * Machine and OS Independent Target Mode Code for the Qlogic SCSI/FC adapters. 4 * 5 * Copyright (c) 1999, 2000, 2001 by Matthew Jacob 6 * All rights reserved. 7 * mjacob@feral.com 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice immediately at the beginning of the file, without modification, 14 * this list of conditions, and the following disclaimer. 15 * 2. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 22 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 /* 32 * Include header file appropriate for platform we're building on. 33 */ 34 35 #ifdef __NetBSD__ 36 #include <dev/ic/isp_netbsd.h> 37 #endif 38 #ifdef __FreeBSD__ 39 #include <dev/isp/isp_freebsd.h> 40 #endif 41 #ifdef __OpenBSD__ 42 #include <dev/ic/isp_openbsd.h> 43 #endif 44 #ifdef __linux__ 45 #include "isp_linux.h" 46 #endif 47 48 #ifdef ISP_TARGET_MODE 49 static char *atiocope = 50 "ATIO returned for lun %d because it was in the middle of Bus Device Reset"; 51 static char *atior = 52 "ATIO returned for lun %d from initiator %d because a Bus Reset occurred"; 53 54 static void isp_got_msg __P((struct ispsoftc *, int, in_entry_t *)); 55 static void isp_got_msg_fc __P((struct ispsoftc *, int, in_fcentry_t *)); 56 static void isp_notify_ack __P((struct ispsoftc *, void *)); 57 static void isp_handle_atio(struct ispsoftc *, at_entry_t *); 58 static void isp_handle_atio2(struct ispsoftc *, at2_entry_t *); 59 static void isp_handle_ctio(struct ispsoftc *, ct_entry_t *); 60 static void isp_handle_ctio2(struct ispsoftc *, ct2_entry_t *); 61 62 /* 63 * The Qlogic driver gets an interrupt to look at response queue entries. 64 * Some of these are status completions for initiatior mode commands, but 65 * if target mode is enabled, we get a whole wad of response queue entries 66 * to be handled here. 67 * 68 * Basically the split into 3 main groups: Lun Enable/Modification responses, 69 * SCSI Command processing, and Immediate Notification events. 70 * 71 * You start by writing a request queue entry to enable target mode (and 72 * establish some resource limitations which you can modify later). 73 * The f/w responds with a LUN ENABLE or LUN MODIFY response with 74 * the status of this action. If the enable was successful, you can expect... 75 * 76 * Response queue entries with SCSI commands encapsulate show up in an ATIO 77 * (Accept Target IO) type- sometimes with enough info to stop the command at 78 * this level. Ultimately the driver has to feed back to the f/w's request 79 * queue a sequence of CTIOs (continue target I/O) that describe data to 80 * be moved and/or status to be sent) and finally finishing with sending 81 * to the f/w's response queue an ATIO which then completes the handshake 82 * with the f/w for that command. There's a lot of variations on this theme, 83 * including flags you can set in the CTIO for the Qlogic 2X00 fibre channel 84 * cards that 'auto-replenish' the f/w's ATIO count, but this is the basic 85 * gist of it. 86 * 87 * The third group that can show up in the response queue are Immediate 88 * Notification events. These include things like notifications of SCSI bus 89 * resets, or Bus Device Reset messages or other messages received. This 90 * a classic oddbins area. It can get a little weird because you then turn 91 * around and acknowledge the Immediate Notify by writing an entry onto the 92 * request queue and then the f/w turns around and gives you an acknowledgement 93 * to *your* acknowledgement on the response queue (the idea being to let 94 * the f/w tell you when the event is *really* over I guess). 95 * 96 */ 97 98 99 /* 100 * A new response queue entry has arrived. The interrupt service code 101 * has already swizzled it into the platform dependent from canonical form. 102 * 103 * Because of the way this driver is designed, unfortunately most of the 104 * actual synchronization work has to be done in the platform specific 105 * code- we have no synchroniation primitives in the common code. 106 */ 107 108 int 109 isp_target_notify(isp, vptr, optrp) 110 struct ispsoftc *isp; 111 void *vptr; 112 u_int16_t *optrp; 113 { 114 u_int16_t status, seqid; 115 union { 116 at_entry_t *atiop; 117 at2_entry_t *at2iop; 118 ct_entry_t *ctiop; 119 ct2_entry_t *ct2iop; 120 lun_entry_t *lunenp; 121 in_entry_t *inotp; 122 in_fcentry_t *inot_fcp; 123 na_entry_t *nackp; 124 na_fcentry_t *nack_fcp; 125 isphdr_t *hp; 126 void * *vp; 127 #define atiop unp.atiop 128 #define at2iop unp.at2iop 129 #define ctiop unp.ctiop 130 #define ct2iop unp.ct2iop 131 #define lunenp unp.lunenp 132 #define inotp unp.inotp 133 #define inot_fcp unp.inot_fcp 134 #define nackp unp.nackp 135 #define nack_fcp unp.nack_fcp 136 #define hdrp unp.hp 137 } unp; 138 int bus, rval = 0; 139 140 unp.vp = vptr; 141 142 ISP_TDQE(isp, "isp_target_notify", (int) *optrp, vptr); 143 144 switch(hdrp->rqs_entry_type) { 145 case RQSTYPE_ATIO: 146 isp_handle_atio(isp, atiop); 147 break; 148 case RQSTYPE_CTIO: 149 isp_handle_ctio(isp, ctiop); 150 break; 151 case RQSTYPE_ATIO2: 152 isp_handle_atio2(isp, at2iop); 153 break; 154 case RQSTYPE_CTIO2: 155 isp_handle_ctio2(isp, ct2iop); 156 break; 157 case RQSTYPE_ENABLE_LUN: 158 case RQSTYPE_MODIFY_LUN: 159 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, vptr); 160 break; 161 162 case RQSTYPE_NOTIFY: 163 /* 164 * Either the ISP received a SCSI message it can't 165 * handle, or it's returning an Immed. Notify entry 166 * we sent. We can send Immed. Notify entries to 167 * increment the firmware's resource count for them 168 * (we set this initially in the Enable Lun entry). 169 */ 170 bus = 0; 171 if (IS_FC(isp)) { 172 status = inot_fcp->in_status; 173 seqid = inot_fcp->in_seqid; 174 } else { 175 status = inotp->in_status & 0xff; 176 seqid = inotp->in_seqid; 177 if (IS_DUALBUS(isp)) { 178 bus = (inotp->in_iid & 0x80) >> 7; 179 inotp->in_iid &= ~0x80; 180 } 181 } 182 isp_prt(isp, ISP_LOGTDEBUG1, 183 "Immediate Notify, status=0x%x seqid=0x%x", status, seqid); 184 switch (status) { 185 case IN_RESET: 186 (void) isp_async(isp, ISPASYNC_BUS_RESET, &bus); 187 break; 188 case IN_MSG_RECEIVED: 189 case IN_IDE_RECEIVED: 190 if (IS_FC(isp)) { 191 isp_got_msg_fc(isp, bus, vptr); 192 } else { 193 isp_got_msg(isp, bus, vptr); 194 } 195 break; 196 case IN_RSRC_UNAVAIL: 197 isp_prt(isp, ISP_LOGWARN, "Firmware out of ATIOs"); 198 break; 199 case IN_ABORT_TASK: 200 isp_prt(isp, ISP_LOGWARN, 201 "Abort Task for Initiator %d RX_ID 0x%x", 202 inot_fcp->in_iid, seqid); 203 break; 204 case IN_PORT_LOGOUT: 205 isp_prt(isp, ISP_LOGWARN, 206 "Port Logout for Initiator %d RX_ID 0x%x", 207 inot_fcp->in_iid, seqid); 208 break; 209 case IN_PORT_CHANGED: 210 isp_prt(isp, ISP_LOGWARN, 211 "Port Changed for Initiator %d RX_ID 0x%x", 212 inot_fcp->in_iid, seqid); 213 break; 214 case IN_GLOBAL_LOGO: 215 isp_prt(isp, ISP_LOGWARN, "All ports logged out"); 216 break; 217 default: 218 isp_prt(isp, ISP_LOGERR, 219 "bad status (0x%x) in isp_target_notify", status); 220 break; 221 } 222 isp_notify_ack(isp, vptr); 223 break; 224 225 case RQSTYPE_NOTIFY_ACK: 226 /* 227 * The ISP is acknowledging our acknowledgement of an 228 * Immediate Notify entry for some asynchronous event. 229 */ 230 if (IS_FC(isp)) { 231 isp_prt(isp, ISP_LOGTDEBUG1, 232 "Notify Ack status=0x%x seqid 0x%x", 233 nack_fcp->na_status, nack_fcp->na_seqid); 234 } else { 235 isp_prt(isp, ISP_LOGTDEBUG1, 236 "Notify Ack event 0x%x status=0x%x seqid 0x%x", 237 nackp->na_event, nackp->na_status, nackp->na_seqid); 238 } 239 break; 240 default: 241 isp_prt(isp, ISP_LOGERR, 242 "Unknown entry type 0x%x in isp_target_notify", 243 hdrp->rqs_entry_type); 244 rval = -1; 245 break; 246 } 247 #undef atiop 248 #undef at2iop 249 #undef ctiop 250 #undef ct2iop 251 #undef lunenp 252 #undef inotp 253 #undef inot_fcp 254 #undef nackp 255 #undef nack_fcp 256 #undef hdrp 257 return (rval); 258 } 259 260 261 /* 262 * Toggle (on/off) target mode for bus/target/lun 263 * 264 * The caller has checked for overlap and legality. 265 * 266 * Note that not all of bus, target or lun can be paid attention to. 267 * Note also that this action will not be complete until the f/w writes 268 * response entry. The caller is responsible for synchronizing this. 269 */ 270 int 271 isp_lun_cmd(isp, cmd, bus, tgt, lun, opaque) 272 struct ispsoftc *isp; 273 int cmd; 274 int bus; 275 int tgt; 276 int lun; 277 u_int32_t opaque; 278 { 279 lun_entry_t el; 280 u_int16_t iptr, optr; 281 void *outp; 282 283 284 MEMZERO(&el, sizeof (el)); 285 if (IS_DUALBUS(isp)) { 286 el.le_rsvd = (bus & 0x1) << 7; 287 } 288 el.le_cmd_count = DFLT_CMD_CNT; 289 el.le_in_count = DFLT_INOTIFY; 290 if (cmd == RQSTYPE_ENABLE_LUN) { 291 if (IS_SCSI(isp)) { 292 el.le_flags = LUN_TQAE|LUN_DISAD; 293 el.le_cdb6len = 12; 294 el.le_cdb7len = 12; 295 } 296 } else if (cmd == -RQSTYPE_ENABLE_LUN) { 297 cmd = RQSTYPE_ENABLE_LUN; 298 el.le_cmd_count = 0; 299 el.le_in_count = 0; 300 } else if (cmd == -RQSTYPE_MODIFY_LUN) { 301 cmd = RQSTYPE_MODIFY_LUN; 302 el.le_ops = LUN_CCDECR | LUN_INDECR; 303 } else { 304 el.le_ops = LUN_CCINCR | LUN_ININCR; 305 } 306 el.le_header.rqs_entry_type = cmd; 307 el.le_header.rqs_entry_count = 1; 308 el.le_reserved = opaque; 309 if (IS_SCSI(isp)) { 310 el.le_tgt = tgt; 311 el.le_lun = lun; 312 } else if (isp->isp_maxluns <= 16) { 313 el.le_lun = lun; 314 } 315 316 if (isp_getrqentry(isp, &iptr, &optr, &outp)) { 317 isp_prt(isp, ISP_LOGWARN, 318 "Request Queue Overflow in isp_lun_cmd"); 319 return (-1); 320 } 321 ISP_SWIZ_ENABLE_LUN(isp, outp, &el); 322 ISP_TDQE(isp, "isp_lun_cmd", (int) optr, &el); 323 ISP_ADD_REQUEST(isp, iptr); 324 return (0); 325 } 326 327 328 int 329 isp_target_put_entry(isp, ap) 330 struct ispsoftc *isp; 331 void *ap; 332 { 333 void *outp; 334 u_int16_t iptr, optr; 335 u_int8_t etype = ((isphdr_t *) ap)->rqs_entry_type; 336 337 if (isp_getrqentry(isp, &iptr, &optr, &outp)) { 338 isp_prt(isp, ISP_LOGWARN, 339 "Request Queue Overflow in isp_target_put_entry"); 340 return (-1); 341 } 342 switch (etype) { 343 case RQSTYPE_ATIO: 344 ISP_SWIZ_ATIO(isp, outp, ap); 345 break; 346 case RQSTYPE_ATIO2: 347 ISP_SWIZ_ATIO2(isp, outp, ap); 348 break; 349 case RQSTYPE_CTIO: 350 ISP_SWIZ_CTIO(isp, outp, ap); 351 break; 352 case RQSTYPE_CTIO2: 353 ISP_SWIZ_CTIO2(isp, outp, ap); 354 break; 355 default: 356 isp_prt(isp, ISP_LOGERR, 357 "Unknown type 0x%x in isp_put_entry", etype); 358 return (-1); 359 } 360 361 ISP_TDQE(isp, "isp_target_put_entry", (int) optr, ap);; 362 363 ISP_ADD_REQUEST(isp, iptr); 364 return (0); 365 } 366 367 int 368 isp_target_put_atio(isp, iid, tgt, lun, ttype, tval) 369 struct ispsoftc *isp; 370 int iid; 371 int tgt; 372 int lun; 373 int ttype; 374 int tval; 375 { 376 union { 377 at_entry_t _atio; 378 at2_entry_t _atio2; 379 } atun; 380 381 MEMZERO(&atun, sizeof atun); 382 if (IS_FC(isp)) { 383 atun._atio2.at_header.rqs_entry_type = RQSTYPE_ATIO2; 384 atun._atio2.at_header.rqs_entry_count = 1; 385 if (isp->isp_maxluns > 16) { 386 atun._atio2.at_scclun = (u_int16_t) lun; 387 } else { 388 atun._atio2.at_lun = (u_int8_t) lun; 389 } 390 atun._atio2.at_status = CT_OK; 391 } else { 392 atun._atio.at_header.rqs_entry_type = RQSTYPE_ATIO; 393 atun._atio.at_header.rqs_entry_count = 1; 394 atun._atio.at_iid = iid; 395 atun._atio.at_tgt = tgt; 396 atun._atio.at_lun = lun; 397 atun._atio.at_tag_type = ttype; 398 atun._atio.at_tag_val = tval; 399 atun._atio.at_status = CT_OK; 400 } 401 return (isp_target_put_entry(isp, &atun)); 402 } 403 404 /* 405 * Command completion- both for handling cases of no resources or 406 * no blackhole driver, or other cases where we have to, inline, 407 * finish the command sanely, or for normal command completion. 408 * 409 * The 'completion' code value has the scsi status byte in the low 8 bits. 410 * If status is a CHECK CONDITION and bit 8 is nonzero, then bits 12..15 have 411 * the sense key and bits 16..23 have the ASCQ and bits 24..31 have the ASC 412 * values. 413 * 414 * NB: the key, asc, ascq, cannot be used for parallel SCSI as it doesn't 415 * NB: inline SCSI sense reporting. 416 * 417 * For both parallel && fibre channel, we use the feature that does 418 * an automatic resource autoreplenish so we don't have then later do 419 * put of an atio to replenish the f/w's resource count. 420 */ 421 422 int 423 isp_endcmd(struct ispsoftc *isp, void *arg, u_int32_t code, u_int16_t hdl) 424 { 425 int sts; 426 union { 427 ct_entry_t _ctio; 428 ct2_entry_t _ctio2; 429 } un; 430 431 MEMZERO(&un, sizeof un); 432 sts = code & 0xff; 433 434 if (IS_FC(isp)) { 435 at2_entry_t *aep = arg; 436 ct2_entry_t *cto = &un._ctio2; 437 438 cto->ct_header.rqs_entry_type = RQSTYPE_CTIO2; 439 cto->ct_header.rqs_entry_count = 1; 440 cto->ct_iid = aep->at_iid; 441 if (isp->isp_maxluns <= 16) { 442 cto->ct_lun = aep->at_lun; 443 } 444 cto->ct_rxid = aep->at_rxid; 445 cto->rsp.m1.ct_scsi_status = sts & 0xff; 446 cto->ct_flags = CT2_SENDSTATUS | CT2_NO_DATA | CT2_FLAG_MODE1; 447 if (hdl == 0) { 448 cto->ct_flags |= CT2_CCINCR; 449 } 450 if (aep->at_datalen) { 451 cto->ct_resid = aep->at_datalen; 452 cto->ct_flags |= CT2_DATA_UNDER; 453 } 454 if ((sts & 0xff) == SCSI_CHECK && (sts & ECMD_SVALID)) { 455 cto->rsp.m1.ct_resp[0] = 0xf0; 456 cto->rsp.m1.ct_resp[2] = (code >> 12) & 0xf; 457 cto->rsp.m1.ct_resp[7] = 8; 458 cto->rsp.m1.ct_resp[12] = (code >> 24) & 0xff; 459 cto->rsp.m1.ct_resp[13] = (code >> 16) & 0xff; 460 cto->rsp.m1.ct_senselen = 16; 461 cto->ct_flags |= CT2_SNSLEN_VALID; 462 } 463 cto->ct_reserved = hdl; 464 } else { 465 at_entry_t *aep = arg; 466 ct_entry_t *cto = &un._ctio; 467 468 cto->ct_header.rqs_entry_type = RQSTYPE_CTIO; 469 cto->ct_header.rqs_entry_count = 1; 470 cto->ct_fwhandle = aep->at_handle; 471 cto->ct_iid = aep->at_iid; 472 cto->ct_tgt = aep->at_tgt; 473 cto->ct_lun = aep->at_lun; 474 cto->ct_tag_type = aep->at_tag_type; 475 cto->ct_tag_val = aep->at_tag_val; 476 cto->ct_flags = CT_SENDSTATUS | CT_NO_DATA; 477 if (hdl == 0) { 478 cto->ct_flags |= CT_CCINCR; 479 } 480 cto->ct_scsi_status = sts; 481 cto->ct_reserved = hdl; 482 } 483 return (isp_target_put_entry(isp, &un)); 484 } 485 486 void 487 isp_target_async(isp, bus, event) 488 struct ispsoftc *isp; 489 int bus; 490 int event; 491 { 492 tmd_event_t evt; 493 tmd_msg_t msg; 494 495 switch (event) { 496 /* 497 * These three we handle here to propagate an effective bus reset 498 * upstream, but these do not require any immediate notify actions 499 * so we return when done. 500 */ 501 case ASYNC_LIP_OCCURRED: 502 case ASYNC_LOOP_UP: 503 case ASYNC_LOOP_DOWN: 504 evt.ev_bus = bus; 505 evt.ev_event = event; 506 (void) isp_async(isp, ISPASYNC_TARGET_EVENT, &evt); 507 return; 508 509 case ASYNC_LOOP_RESET: 510 case ASYNC_BUS_RESET: 511 case ASYNC_TIMEOUT_RESET: 512 if (IS_FC(isp)) { 513 return; /* we'll be getting an inotify instead */ 514 } 515 evt.ev_bus = bus; 516 evt.ev_event = event; 517 (void) isp_async(isp, ISPASYNC_TARGET_EVENT, &evt); 518 break; 519 case ASYNC_DEVICE_RESET: 520 /* 521 * Bus Device Reset resets a specific target, so 522 * we pass this as a synthesized message. 523 */ 524 MEMZERO(&msg, sizeof msg); 525 if (IS_FC(isp)) { 526 msg.nt_iid = FCPARAM(isp)->isp_loopid; 527 } else { 528 msg.nt_iid = SDPARAM(isp)->isp_initiator_id; 529 } 530 msg.nt_bus = bus; 531 msg.nt_msg[0] = MSG_BUS_DEV_RESET; 532 (void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg); 533 break; 534 default: 535 isp_prt(isp, ISP_LOGERR, 536 "isp_target_async: unknown event 0x%x", event); 537 break; 538 } 539 if (isp->isp_state == ISP_RUNSTATE) 540 isp_notify_ack(isp, NULL); 541 } 542 543 544 /* 545 * Process a received message. 546 * The ISP firmware can handle most messages, there are only 547 * a few that we need to deal with: 548 * - abort: clean up the current command 549 * - abort tag and clear queue 550 */ 551 552 static void 553 isp_got_msg(isp, bus, inp) 554 struct ispsoftc *isp; 555 int bus; 556 in_entry_t *inp; 557 { 558 u_int8_t status = inp->in_status & ~QLTM_SVALID; 559 560 if (status == IN_IDE_RECEIVED || status == IN_MSG_RECEIVED) { 561 tmd_msg_t msg; 562 563 MEMZERO(&msg, sizeof (msg)); 564 msg.nt_bus = bus; 565 msg.nt_iid = inp->in_iid; 566 msg.nt_tgt = inp->in_tgt; 567 msg.nt_lun = inp->in_lun; 568 msg.nt_tagtype = inp->in_tag_type; 569 msg.nt_tagval = inp->in_tag_val; 570 MEMCPY(msg.nt_msg, inp->in_msg, IN_MSGLEN); 571 (void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg); 572 } else { 573 isp_prt(isp, ISP_LOGERR, 574 "unknown immediate notify status 0x%x", inp->in_status); 575 } 576 } 577 578 /* 579 * Synthesize a message from the task management flags in a FCP_CMND_IU. 580 */ 581 static void 582 isp_got_msg_fc(isp, bus, inp) 583 struct ispsoftc *isp; 584 int bus; 585 in_fcentry_t *inp; 586 { 587 static char *f1 = "%s from iid %d lun %d seq 0x%x"; 588 static char *f2 = 589 "unknown %s 0x%x lun %d iid %d task flags 0x%x seq 0x%x\n"; 590 591 if (inp->in_status != IN_MSG_RECEIVED) { 592 isp_prt(isp, ISP_LOGINFO, f2, "immediate notify status", 593 inp->in_status, inp->in_lun, inp->in_iid, 594 inp->in_task_flags, inp->in_seqid); 595 } else { 596 tmd_msg_t msg; 597 598 MEMZERO(&msg, sizeof (msg)); 599 msg.nt_bus = bus; 600 msg.nt_iid = inp->in_iid; 601 if (isp->isp_maxluns > 16) { 602 msg.nt_lun = inp->in_scclun; 603 } else { 604 msg.nt_lun = inp->in_lun; 605 } 606 msg.nt_tagval = inp->in_seqid; 607 608 if (inp->in_task_flags & TASK_FLAGS_ABORT_TASK) { 609 isp_prt(isp, ISP_LOGINFO, f1, "ABORT TASK", 610 inp->in_iid, inp->in_lun, inp->in_seqid); 611 msg.nt_msg[0] = MSG_ABORT_TAG; 612 } else if (inp->in_task_flags & TASK_FLAGS_CLEAR_TASK_SET) { 613 isp_prt(isp, ISP_LOGINFO, f1, "CLEAR TASK SET", 614 inp->in_iid, inp->in_lun, inp->in_seqid); 615 msg.nt_msg[0] = MSG_CLEAR_QUEUE; 616 } else if (inp->in_task_flags & TASK_FLAGS_TARGET_RESET) { 617 isp_prt(isp, ISP_LOGINFO, f1, "TARGET RESET", 618 inp->in_iid, inp->in_lun, inp->in_seqid); 619 msg.nt_msg[0] = MSG_BUS_DEV_RESET; 620 } else if (inp->in_task_flags & TASK_FLAGS_CLEAR_ACA) { 621 isp_prt(isp, ISP_LOGINFO, f1, "CLEAR ACA", 622 inp->in_iid, inp->in_lun, inp->in_seqid); 623 /* ???? */ 624 msg.nt_msg[0] = MSG_REL_RECOVERY; 625 } else if (inp->in_task_flags & TASK_FLAGS_TERMINATE_TASK) { 626 isp_prt(isp, ISP_LOGINFO, f1, "TERMINATE TASK", 627 inp->in_iid, inp->in_lun, inp->in_seqid); 628 msg.nt_msg[0] = MSG_TERM_IO_PROC; 629 } else { 630 isp_prt(isp, ISP_LOGWARN, f2, "task flag", 631 inp->in_status, inp->in_lun, inp->in_iid, 632 inp->in_task_flags, inp->in_seqid); 633 } 634 if (msg.nt_msg[0]) { 635 (void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg); 636 } 637 } 638 } 639 640 static void 641 isp_notify_ack(isp, arg) 642 struct ispsoftc *isp; 643 void *arg; 644 { 645 char storage[QENTRY_LEN]; 646 u_int16_t iptr, optr; 647 void *outp; 648 649 if (isp_getrqentry(isp, &iptr, &optr, &outp)) { 650 isp_prt(isp, ISP_LOGWARN, 651 "Request Queue Overflow For isp_notify_ack"); 652 return; 653 } 654 655 MEMZERO(storage, QENTRY_LEN); 656 657 if (IS_FC(isp)) { 658 na_fcentry_t *na = (na_fcentry_t *) storage; 659 if (arg) { 660 in_fcentry_t *inp = arg; 661 MEMCPY(storage, arg, sizeof (isphdr_t)); 662 na->na_iid = inp->in_iid; 663 if (isp->isp_maxluns > 16) { 664 na->na_lun = inp->in_scclun; 665 } else { 666 na->na_lun = inp->in_lun; 667 } 668 na->na_task_flags = inp->in_task_flags; 669 na->na_seqid = inp->in_seqid; 670 na->na_flags = NAFC_RCOUNT; 671 if (inp->in_status == IN_RESET) { 672 na->na_flags |= NAFC_RST_CLRD; 673 } 674 } else { 675 na->na_flags = NAFC_RST_CLRD; 676 } 677 na->na_header.rqs_entry_type = RQSTYPE_NOTIFY_ACK; 678 na->na_header.rqs_entry_count = 1; 679 ISP_SWIZ_NOT_ACK_FC(isp, outp, na); 680 } else { 681 na_entry_t *na = (na_entry_t *) storage; 682 if (arg) { 683 in_entry_t *inp = arg; 684 MEMCPY(storage, arg, sizeof (isphdr_t)); 685 na->na_iid = inp->in_iid; 686 na->na_lun = inp->in_lun; 687 na->na_tgt = inp->in_tgt; 688 na->na_seqid = inp->in_seqid; 689 if (inp->in_status == IN_RESET) { 690 na->na_event = NA_RST_CLRD; 691 } 692 } else { 693 na->na_event = NA_RST_CLRD; 694 } 695 na->na_header.rqs_entry_type = RQSTYPE_NOTIFY_ACK; 696 na->na_header.rqs_entry_count = 1; 697 ISP_SWIZ_NOT_ACK(isp, outp, na); 698 } 699 ISP_TDQE(isp, "isp_notify_ack", (int) optr, storage); 700 ISP_ADD_REQUEST(isp, iptr); 701 } 702 703 static void 704 isp_handle_atio(isp, aep) 705 struct ispsoftc *isp; 706 at_entry_t *aep; 707 { 708 int lun; 709 lun = aep->at_lun; 710 /* 711 * The firmware status (except for the QLTM_SVALID bit) indicates 712 * why this ATIO was sent to us. 713 * 714 * If QLTM_SVALID is set, the firware has recommended Sense Data. 715 * 716 * If the DISCONNECTS DISABLED bit is set in the flags field, 717 * we're still connected on the SCSI bus - i.e. the initiator 718 * did not set DiscPriv in the identify message. We don't care 719 * about this so it's ignored. 720 */ 721 722 switch(aep->at_status & ~QLTM_SVALID) { 723 case AT_PATH_INVALID: 724 /* 725 * ATIO rejected by the firmware due to disabled lun. 726 */ 727 isp_prt(isp, ISP_LOGERR, 728 "rejected ATIO for disabled lun %d", lun); 729 break; 730 case AT_NOCAP: 731 /* 732 * Requested Capability not available 733 * We sent an ATIO that overflowed the firmware's 734 * command resource count. 735 */ 736 isp_prt(isp, ISP_LOGERR, 737 "rejected ATIO for lun %d because of command count" 738 " overflow", lun); 739 break; 740 741 case AT_BDR_MSG: 742 /* 743 * If we send an ATIO to the firmware to increment 744 * its command resource count, and the firmware is 745 * recovering from a Bus Device Reset, it returns 746 * the ATIO with this status. We set the command 747 * resource count in the Enable Lun entry and no 748 * not increment it. Therefore we should never get 749 * this status here. 750 */ 751 isp_prt(isp, ISP_LOGERR, atiocope, lun); 752 break; 753 754 case AT_CDB: /* Got a CDB */ 755 case AT_PHASE_ERROR: /* Bus Phase Sequence Error */ 756 /* 757 * Punt to platform specific layer. 758 */ 759 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, aep); 760 break; 761 762 case AT_RESET: 763 /* 764 * A bus reset came along an blew away this command. Why 765 * they do this in addition the async event code stuff, 766 * I dunno. 767 * 768 * Ignore it because the async event will clear things 769 * up for us. 770 */ 771 isp_prt(isp, ISP_LOGWARN, atior, lun, aep->at_iid); 772 break; 773 774 775 default: 776 isp_prt(isp, ISP_LOGERR, 777 "Unknown ATIO status 0x%x from initiator %d for lun %d", 778 aep->at_status, aep->at_iid, lun); 779 (void) isp_target_put_atio(isp, aep->at_iid, aep->at_tgt, 780 lun, aep->at_tag_type, aep->at_tag_val); 781 break; 782 } 783 } 784 785 static void 786 isp_handle_atio2(isp, aep) 787 struct ispsoftc *isp; 788 at2_entry_t *aep; 789 { 790 int lun; 791 792 if (isp->isp_maxluns > 16) { 793 lun = aep->at_scclun; 794 } else { 795 lun = aep->at_lun; 796 } 797 798 /* 799 * The firmware status (except for the QLTM_SVALID bit) indicates 800 * why this ATIO was sent to us. 801 * 802 * If QLTM_SVALID is set, the firware has recommended Sense Data. 803 * 804 * If the DISCONNECTS DISABLED bit is set in the flags field, 805 * we're still connected on the SCSI bus - i.e. the initiator 806 * did not set DiscPriv in the identify message. We don't care 807 * about this so it's ignored. 808 */ 809 810 switch(aep->at_status & ~QLTM_SVALID) { 811 case AT_PATH_INVALID: 812 /* 813 * ATIO rejected by the firmware due to disabled lun. 814 */ 815 isp_prt(isp, ISP_LOGERR, 816 "rejected ATIO2 for disabled lun %d", lun); 817 break; 818 case AT_NOCAP: 819 /* 820 * Requested Capability not available 821 * We sent an ATIO that overflowed the firmware's 822 * command resource count. 823 */ 824 isp_prt(isp, ISP_LOGERR, 825 "rejected ATIO2 for lun %d- command count overflow", lun); 826 break; 827 828 case AT_BDR_MSG: 829 /* 830 * If we send an ATIO to the firmware to increment 831 * its command resource count, and the firmware is 832 * recovering from a Bus Device Reset, it returns 833 * the ATIO with this status. We set the command 834 * resource count in the Enable Lun entry and no 835 * not increment it. Therefore we should never get 836 * this status here. 837 */ 838 isp_prt(isp, ISP_LOGERR, atiocope, lun); 839 break; 840 841 case AT_CDB: /* Got a CDB */ 842 /* 843 * Punt to platform specific layer. 844 */ 845 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, aep); 846 break; 847 848 case AT_RESET: 849 /* 850 * A bus reset came along an blew away this command. Why 851 * they do this in addition the async event code stuff, 852 * I dunno. 853 * 854 * Ignore it because the async event will clear things 855 * up for us. 856 */ 857 isp_prt(isp, ISP_LOGERR, atior, lun, aep->at_iid); 858 break; 859 860 861 default: 862 isp_prt(isp, ISP_LOGERR, 863 "Unknown ATIO2 status 0x%x from initiator %d for lun %d", 864 aep->at_status, aep->at_iid, lun); 865 (void) isp_target_put_atio(isp, aep->at_iid, 0, lun, 0, 0); 866 break; 867 } 868 } 869 870 static void 871 isp_handle_ctio(isp, ct) 872 struct ispsoftc *isp; 873 ct_entry_t *ct; 874 { 875 XS_T *xs; 876 int pl = ISP_LOGTDEBUG2; 877 char *fmsg = NULL; 878 879 if (ct->ct_reserved) { 880 xs = isp_find_xs(isp, ct->ct_reserved); 881 if (xs == NULL) 882 pl = ISP_LOGALL; 883 } else { 884 pl = ISP_LOGTDEBUG1; 885 xs = NULL; 886 } 887 888 switch(ct->ct_status & ~QLTM_SVALID) { 889 case CT_OK: 890 /* 891 * There are generally 3 possibilities as to why we'd get 892 * this condition: 893 * We disconnected after receiving a CDB. 894 * We sent or received data. 895 * We sent status & command complete. 896 */ 897 898 if (ct->ct_flags & CT_SENDSTATUS) { 899 break; 900 } else if ((ct->ct_flags & CT_DATAMASK) == CT_NO_DATA) { 901 /* 902 * Nothing to do in this case. 903 */ 904 isp_prt(isp, pl, "CTIO- iid %d disconnected OK", 905 ct->ct_iid); 906 return; 907 } 908 break; 909 910 case CT_BDR_MSG: 911 /* 912 * Bus Device Reset message received or the SCSI Bus has 913 * been Reset; the firmware has gone to Bus Free. 914 * 915 * The firmware generates an async mailbox interupt to 916 * notify us of this and returns outstanding CTIOs with this 917 * status. These CTIOs are handled in that same way as 918 * CT_ABORTED ones, so just fall through here. 919 */ 920 fmsg = "Bus Device Reset"; 921 /*FALLTHROUGH*/ 922 case CT_RESET: 923 if (fmsg == NULL) 924 fmsg = "Bus Reset"; 925 /*FALLTHROUGH*/ 926 case CT_ABORTED: 927 /* 928 * When an Abort message is received the firmware goes to 929 * Bus Free and returns all outstanding CTIOs with the status 930 * set, then sends us an Immediate Notify entry. 931 */ 932 if (fmsg == NULL) 933 fmsg = "ABORT TASK sent by Initiator"; 934 935 isp_prt(isp, ISP_LOGWARN, "CTIO destroyed by %s", fmsg); 936 break; 937 938 case CT_INVAL: 939 /* 940 * CTIO rejected by the firmware due to disabled lun. 941 * "Cannot Happen". 942 */ 943 isp_prt(isp, ISP_LOGERR, 944 "Firmware rejected CTIO for disabled lun %d", 945 ct->ct_lun); 946 break; 947 948 case CT_NOPATH: 949 /* 950 * CTIO rejected by the firmware due "no path for the 951 * nondisconnecting nexus specified". This means that 952 * we tried to access the bus while a non-disconnecting 953 * command is in process. 954 */ 955 isp_prt(isp, ISP_LOGERR, 956 "Firmware rejected CTIO for bad nexus %d/%d/%d", 957 ct->ct_iid, ct->ct_tgt, ct->ct_lun); 958 break; 959 960 case CT_RSELTMO: 961 fmsg = "Reselection"; 962 /*FALLTHROUGH*/ 963 case CT_TIMEOUT: 964 if (fmsg == NULL) 965 fmsg = "Command"; 966 isp_prt(isp, ISP_LOGERR, "Firmware timed out on %s", fmsg); 967 break; 968 969 case CT_ERR: 970 fmsg = "Completed with Error"; 971 /*FALLTHROUGH*/ 972 case CT_PHASE_ERROR: 973 if (fmsg == NULL) 974 fmsg = "Phase Sequence Error"; 975 /*FALLTHROUGH*/ 976 case CT_TERMINATED: 977 if (fmsg == NULL) 978 fmsg = "terminated by TERMINATE TRANSFER"; 979 /*FALLTHROUGH*/ 980 case CT_NOACK: 981 if (fmsg == NULL) 982 fmsg = "unacknowledged Immediate Notify pending"; 983 984 isp_prt(isp, ISP_LOGERR, "CTIO returned by f/w- %s", fmsg); 985 #if 0 986 if (status & SENSEVALID) { 987 bcopy((caddr_t) (cep + CTIO_SENSE_OFFSET), 988 (caddr_t) &cdp->cd_sensedata, 989 sizeof(scsi_sense_t)); 990 cdp->cd_flags |= CDF_SENSEVALID; 991 } 992 #endif 993 break; 994 default: 995 isp_prt(isp, ISP_LOGERR, "Unknown CTIO status 0x%x", 996 ct->ct_status & ~QLTM_SVALID); 997 break; 998 } 999 1000 if (xs == NULL) { 1001 /* 1002 * There may be more than one CTIO for a data transfer, 1003 * or this may be a status CTIO we're not monitoring. 1004 * 1005 * The assumption is that they'll all be returned in the 1006 * order we got them. 1007 */ 1008 if (ct->ct_reserved == 0) { 1009 if ((ct->ct_flags & CT_SENDSTATUS) == 0) { 1010 isp_prt(isp, pl, 1011 "intermediate CTIO completed ok"); 1012 } else { 1013 isp_prt(isp, pl, 1014 "unmonitored CTIO completed ok"); 1015 } 1016 } else { 1017 isp_prt(isp, pl, 1018 "NO xs for CTIO (handle 0x%x) status 0x%x", 1019 ct->ct_reserved, ct->ct_status & ~QLTM_SVALID); 1020 } 1021 } else { 1022 if (ct->ct_flags & CT_SENDSTATUS) { 1023 /* 1024 * Sent status and command complete. 1025 * 1026 * We're now really done with this command, so we 1027 * punt to the platform dependent layers because 1028 * only there can we do the appropriate command 1029 * complete thread synchronization. 1030 */ 1031 isp_prt(isp, pl, "status CTIO complete"); 1032 } else { 1033 /* 1034 * Final CTIO completed. Release DMA resources and 1035 * notify platform dependent layers. 1036 */ 1037 isp_prt(isp, pl, "data CTIO complete"); 1038 ISP_DMAFREE(isp, xs, ct->ct_reserved); 1039 } 1040 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, ct); 1041 /* 1042 * The platform layer will destroy the handle if appropriate. 1043 */ 1044 } 1045 } 1046 1047 static void 1048 isp_handle_ctio2(isp, ct) 1049 struct ispsoftc *isp; 1050 ct2_entry_t *ct; 1051 { 1052 XS_T *xs; 1053 int pl = ISP_LOGTDEBUG2; 1054 char *fmsg = NULL; 1055 1056 if (ct->ct_reserved) { 1057 xs = isp_find_xs(isp, ct->ct_reserved); 1058 if (xs == NULL) 1059 pl = ISP_LOGALL; 1060 } else { 1061 pl = ISP_LOGTDEBUG1; 1062 xs = NULL; 1063 } 1064 1065 switch(ct->ct_status & ~QLTM_SVALID) { 1066 case CT_OK: 1067 /* 1068 * There are generally 2 possibilities as to why we'd get 1069 * this condition: 1070 * We sent or received data. 1071 * We sent status & command complete. 1072 */ 1073 1074 break; 1075 1076 case CT_BDR_MSG: 1077 /* 1078 * Bus Device Reset message received or the SCSI Bus has 1079 * been Reset; the firmware has gone to Bus Free. 1080 * 1081 * The firmware generates an async mailbox interupt to 1082 * notify us of this and returns outstanding CTIOs with this 1083 * status. These CTIOs are handled in that same way as 1084 * CT_ABORTED ones, so just fall through here. 1085 */ 1086 fmsg = "Bus Device Reset"; 1087 /*FALLTHROUGH*/ 1088 case CT_RESET: 1089 if (fmsg == NULL) 1090 fmsg = "Bus Reset"; 1091 /*FALLTHROUGH*/ 1092 case CT_ABORTED: 1093 /* 1094 * When an Abort message is received the firmware goes to 1095 * Bus Free and returns all outstanding CTIOs with the status 1096 * set, then sends us an Immediate Notify entry. 1097 */ 1098 if (fmsg == NULL) 1099 fmsg = "ABORT TASK sent by Initiator"; 1100 1101 isp_prt(isp, ISP_LOGERR, "CTIO2 destroyed by %s", fmsg); 1102 break; 1103 1104 case CT_INVAL: 1105 /* 1106 * CTIO rejected by the firmware - invalid data direction. 1107 */ 1108 isp_prt(isp, ISP_LOGERR, "CTIO2 had wrong data directiond"); 1109 break; 1110 1111 case CT_NOPATH: 1112 /* 1113 * CTIO rejected by the firmware due "no path for the 1114 * nondisconnecting nexus specified". This means that 1115 * we tried to access the bus while a non-disconnecting 1116 * command is in process. 1117 */ 1118 isp_prt(isp, ISP_LOGERR, 1119 "Firmware rejected CTIO2 for bad nexus %d->%d", 1120 ct->ct_iid, ct->ct_lun); 1121 break; 1122 1123 case CT_RSELTMO: 1124 fmsg = "Reselection"; 1125 /*FALLTHROUGH*/ 1126 case CT_TIMEOUT: 1127 if (fmsg == NULL) 1128 fmsg = "Command"; 1129 isp_prt(isp, ISP_LOGERR, "Firmware timed out on %s", fmsg); 1130 break; 1131 1132 case CT_ERR: 1133 fmsg = "Completed with Error"; 1134 /*FALLTHROUGH*/ 1135 case CT_PHASE_ERROR: /* Bus phase sequence error */ 1136 if (fmsg == NULL) 1137 fmsg = "Phase Sequence Error"; 1138 /*FALLTHROUGH*/ 1139 case CT_TERMINATED: 1140 if (fmsg == NULL) 1141 fmsg = "terminated by TERMINATE TRANSFER"; 1142 /*FALLTHROUGH*/ 1143 case CT_LOGOUT: 1144 if (fmsg == NULL) 1145 fmsg = "Port Logout"; 1146 /*FALLTHROUGH*/ 1147 case CT_PORTNOTAVAIL: 1148 if (fmsg == NULL) 1149 fmsg = "Port not available"; 1150 case CT_NOACK: 1151 if (fmsg == NULL) 1152 fmsg = "unacknowledged Immediate Notify pending"; 1153 1154 isp_prt(isp, ISP_LOGERR, "CTIO returned by f/w- %s", fmsg); 1155 #if 0 1156 if (status & SENSEVALID) { 1157 bcopy((caddr_t) (cep + CTIO_SENSE_OFFSET), 1158 (caddr_t) &cdp->cd_sensedata, 1159 sizeof(scsi_sense_t)); 1160 cdp->cd_flags |= CDF_SENSEVALID; 1161 } 1162 #endif 1163 break; 1164 1165 case CT_INVRXID: 1166 /* 1167 * CTIO rejected by the firmware because an invalid RX_ID. 1168 * Just print a message. 1169 */ 1170 isp_prt(isp, ISP_LOGERR, 1171 "CTIO2 completed with Invalid RX_ID 0x%x", ct->ct_rxid); 1172 break; 1173 1174 default: 1175 isp_prt(isp, ISP_LOGERR, "Unknown CTIO status 0x%x", 1176 ct->ct_status & ~QLTM_SVALID); 1177 break; 1178 } 1179 1180 if (xs == NULL) { 1181 /* 1182 * There may be more than one CTIO for a data transfer, 1183 * or this may be a status CTIO we're not monitoring. 1184 * 1185 * The assumption is that they'll all be returned in the 1186 * order we got them. 1187 */ 1188 if (ct->ct_reserved == 0) { 1189 if ((ct->ct_flags & CT_SENDSTATUS) == 0) { 1190 isp_prt(isp, pl, 1191 "intermediate CTIO completed ok"); 1192 } else { 1193 isp_prt(isp, pl, 1194 "unmonitored CTIO completed ok"); 1195 } 1196 } else { 1197 isp_prt(isp, pl, 1198 "NO xs for CTIO (handle 0x%x) status 0x%x", 1199 ct->ct_reserved, ct->ct_status & ~QLTM_SVALID); 1200 } 1201 } else { 1202 if (ct->ct_flags & CT_SENDSTATUS) { 1203 /* 1204 * Sent status and command complete. 1205 * 1206 * We're now really done with this command, so we 1207 * punt to the platform dependent layers because 1208 * only there can we do the appropriate command 1209 * complete thread synchronization. 1210 */ 1211 isp_prt(isp, pl, "status CTIO complete"); 1212 } else { 1213 /* 1214 * Final CTIO completed. Release DMA resources and 1215 * notify platform dependent layers. 1216 */ 1217 isp_prt(isp, pl, "data CTIO complete"); 1218 ISP_DMAFREE(isp, xs, ct->ct_reserved); 1219 } 1220 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, ct); 1221 /* 1222 * The platform layer will destroy the handle if appropriate. 1223 */ 1224 } 1225 } 1226 #endif 1227