1 /* $FreeBSD$ */ 2 /* 3 * Machine and OS Independent Target Mode Code for the Qlogic SCSI/FC adapters. 4 * 5 * Copyright (c) 1999 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. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 25 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 /* 35 * Include header file appropriate for platform we're building on. 36 */ 37 38 #ifdef __NetBSD__ 39 #include <dev/ic/isp_netbsd.h> 40 #endif 41 #ifdef __FreeBSD__ 42 #include <dev/isp/isp_freebsd.h> 43 #endif 44 #ifdef __OpenBSD__ 45 #include <dev/ic/isp_openbsd.h> 46 #endif 47 #ifdef __linux__ 48 #include "isp_linux.h" 49 #endif 50 51 #ifdef ISP_TARGET_MODE 52 static char *atiocope = 53 "ATIO returned for lun %d because it was in the middle of Bus Device Reset"; 54 static char *atior = 55 "ATIO returned for lun %d from initiator %d because a Bus Reset occurred"; 56 57 static void isp_got_msg __P((struct ispsoftc *, int, in_entry_t *)); 58 static void isp_got_msg_fc __P((struct ispsoftc *, int, in_fcentry_t *)); 59 static void isp_notify_ack __P((struct ispsoftc *, void *)); 60 static void isp_handle_atio(struct ispsoftc *, at_entry_t *); 61 static void isp_handle_atio2(struct ispsoftc *, at2_entry_t *); 62 static void isp_handle_ctio(struct ispsoftc *, ct_entry_t *); 63 static void isp_handle_ctio2(struct ispsoftc *, ct2_entry_t *); 64 65 /* 66 * The Qlogic driver gets an interrupt to look at response queue entries. 67 * Some of these are status completions for initiatior mode commands, but 68 * if target mode is enabled, we get a whole wad of response queue entries 69 * to be handled here. 70 * 71 * Basically the split into 3 main groups: Lun Enable/Modification responses, 72 * SCSI Command processing, and Immediate Notification events. 73 * 74 * You start by writing a request queue entry to enable target mode (and 75 * establish some resource limitations which you can modify later). 76 * The f/w responds with a LUN ENABLE or LUN MODIFY response with 77 * the status of this action. If the enable was successful, you can expect... 78 * 79 * Response queue entries with SCSI commands encapsulate show up in an ATIO 80 * (Accept Target IO) type- sometimes with enough info to stop the command at 81 * this level. Ultimately the driver has to feed back to the f/w's request 82 * queue a sequence of CTIOs (continue target I/O) that describe data to 83 * be moved and/or status to be sent) and finally finishing with sending 84 * to the f/w's response queue an ATIO which then completes the handshake 85 * with the f/w for that command. There's a lot of variations on this theme, 86 * including flags you can set in the CTIO for the Qlogic 2X00 fibre channel 87 * cards that 'auto-replenish' the f/w's ATIO count, but this is the basic 88 * gist of it. 89 * 90 * The third group that can show up in the response queue are Immediate 91 * Notification events. These include things like notifications of SCSI bus 92 * resets, or Bus Device Reset messages or other messages received. This 93 * a classic oddbins area. It can get a little wierd because you then turn 94 * around and acknowledge the Immediate Notify by writing an entry onto the 95 * request queue and then the f/w turns around and gives you an acknowledgement 96 * to *your* acknowledgement on the response queue (the idea being to let 97 * the f/w tell you when the event is *really* over I guess). 98 * 99 */ 100 101 102 /* 103 * A new response queue entry has arrived. The interrupt service code 104 * has already swizzled it into the platform dependent from canonical form. 105 * 106 * Because of the way this driver is designed, unfortunately most of the 107 * actual synchronization work has to be done in the platform specific 108 * code- we have no synchroniation primitives in the common code. 109 */ 110 111 int 112 isp_target_notify(isp, vptr, optrp) 113 struct ispsoftc *isp; 114 void *vptr; 115 u_int16_t *optrp; 116 { 117 u_int16_t status, seqid; 118 union { 119 at_entry_t *atiop; 120 at2_entry_t *at2iop; 121 ct_entry_t *ctiop; 122 ct2_entry_t *ct2iop; 123 lun_entry_t *lunenp; 124 in_entry_t *inotp; 125 in_fcentry_t *inot_fcp; 126 na_entry_t *nackp; 127 na_fcentry_t *nack_fcp; 128 isphdr_t *hp; 129 void * *vp; 130 #define atiop unp.atiop 131 #define at2iop unp.at2iop 132 #define ctiop unp.ctiop 133 #define ct2iop unp.ct2iop 134 #define lunenp unp.lunenp 135 #define inotp unp.inotp 136 #define inot_fcp unp.inot_fcp 137 #define nackp unp.nackp 138 #define nack_fcp unp.nack_fcp 139 #define hdrp unp.hp 140 } unp; 141 int bus, rval = 0; 142 143 unp.vp = vptr; 144 145 ISP_TDQE(isp, "isp_target_notify", (int) *optrp, vptr); 146 147 switch(hdrp->rqs_entry_type) { 148 case RQSTYPE_ATIO: 149 isp_handle_atio(isp, atiop); 150 break; 151 case RQSTYPE_CTIO: 152 isp_handle_ctio(isp, ctiop); 153 break; 154 case RQSTYPE_ATIO2: 155 isp_handle_atio2(isp, at2iop); 156 break; 157 case RQSTYPE_CTIO2: 158 isp_handle_ctio2(isp, ct2iop); 159 break; 160 case RQSTYPE_ENABLE_LUN: 161 case RQSTYPE_MODIFY_LUN: 162 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, vptr); 163 break; 164 165 case RQSTYPE_NOTIFY: 166 /* 167 * Either the ISP received a SCSI message it can't 168 * handle, or it's returning an Immed. Notify entry 169 * we sent. We can send Immed. Notify entries to 170 * increment the firmware's resource count for them 171 * (we set this initially in the Enable Lun entry). 172 */ 173 bus = 0; 174 if (IS_FC(isp)) { 175 status = inot_fcp->in_status; 176 seqid = inot_fcp->in_seqid; 177 } else { 178 status = inotp->in_status & 0xff; 179 seqid = inotp->in_seqid; 180 if (IS_DUALBUS(isp)) { 181 bus = (inotp->in_iid & 0x80) >> 7; 182 inotp->in_iid &= ~0x80; 183 } 184 } 185 isp_prt(isp, ISP_LOGTDEBUG1, 186 "Immediate Notify, status=0x%x seqid=0x%x", status, seqid); 187 switch (status) { 188 case IN_RESET: 189 (void) isp_async(isp, ISPASYNC_BUS_RESET, &bus); 190 break; 191 case IN_MSG_RECEIVED: 192 case IN_IDE_RECEIVED: 193 if (IS_FC(isp)) { 194 isp_got_msg_fc(isp, bus, vptr); 195 } else { 196 isp_got_msg(isp, bus, vptr); 197 } 198 break; 199 case IN_RSRC_UNAVAIL: 200 isp_prt(isp, ISP_LOGWARN, "Firmware out of ATIOs"); 201 break; 202 case IN_ABORT_TASK: 203 isp_prt(isp, ISP_LOGWARN, 204 "Abort Task for Initiator %d RX_ID 0x%x", 205 inot_fcp->in_iid, seqid); 206 break; 207 case IN_PORT_LOGOUT: 208 isp_prt(isp, ISP_LOGWARN, 209 "Port Logout for Initiator %d RX_ID 0x%x", 210 inot_fcp->in_iid, seqid); 211 break; 212 case IN_PORT_CHANGED: 213 isp_prt(isp, ISP_LOGWARN, 214 "Port Changed for Initiator %d RX_ID 0x%x", 215 inot_fcp->in_iid, seqid); 216 break; 217 case IN_GLOBAL_LOGO: 218 isp_prt(isp, ISP_LOGWARN, "All ports logged out"); 219 break; 220 default: 221 isp_prt(isp, ISP_LOGERR, 222 "bad status (0x%x) in isp_target_notify", status); 223 break; 224 } 225 isp_notify_ack(isp, vptr); 226 break; 227 228 case RQSTYPE_NOTIFY_ACK: 229 /* 230 * The ISP is acknowledging our acknowledgement of an 231 * Immediate Notify entry for some asynchronous event. 232 */ 233 if (IS_FC(isp)) { 234 isp_prt(isp, ISP_LOGTDEBUG1, 235 "Notify Ack status=0x%x seqid 0x%x", 236 nack_fcp->na_status, nack_fcp->na_seqid); 237 } else { 238 isp_prt(isp, ISP_LOGTDEBUG1, 239 "Notify Ack event 0x%x status=0x%x seqid 0x%x", 240 nackp->na_event, nackp->na_status, nackp->na_seqid); 241 } 242 break; 243 default: 244 isp_prt(isp, ISP_LOGERR, 245 "Unknown entry type 0x%x in isp_target_notify", 246 hdrp->rqs_entry_type); 247 rval = -1; 248 break; 249 } 250 #undef atiop 251 #undef at2iop 252 #undef ctiop 253 #undef ct2iop 254 #undef lunenp 255 #undef inotp 256 #undef inot_fcp 257 #undef nackp 258 #undef nack_fcp 259 #undef hdrp 260 return (rval); 261 } 262 263 264 /* 265 * Toggle (on/off) target mode for bus/target/lun 266 * 267 * The caller has checked for overlap and legality. 268 * 269 * Note that not all of bus, target or lun can be paid attention to. 270 * Note also that this action will not be complete until the f/w writes 271 * response entry. The caller is responsible for synchronizing this. 272 */ 273 int 274 isp_lun_cmd(isp, cmd, bus, tgt, lun, opaque) 275 struct ispsoftc *isp; 276 int cmd; 277 int bus; 278 int tgt; 279 int lun; 280 u_int32_t opaque; 281 { 282 lun_entry_t el; 283 u_int16_t iptr, optr; 284 void *outp; 285 286 287 MEMZERO(&el, sizeof (el)); 288 if (IS_DUALBUS(isp)) { 289 el.le_rsvd = (bus & 0x1) << 7; 290 } 291 el.le_cmd_count = DFLT_CMD_CNT; 292 el.le_in_count = DFLT_INOTIFY; 293 if (cmd == RQSTYPE_ENABLE_LUN) { 294 if (IS_SCSI(isp)) { 295 el.le_flags = LUN_TQAE|LUN_DISAD; 296 el.le_cdb6len = 12; 297 el.le_cdb7len = 12; 298 } 299 } else if (cmd == -RQSTYPE_ENABLE_LUN) { 300 cmd = RQSTYPE_ENABLE_LUN; 301 el.le_cmd_count = 0; 302 el.le_in_count = 0; 303 } else if (cmd == -RQSTYPE_MODIFY_LUN) { 304 cmd = RQSTYPE_MODIFY_LUN; 305 el.le_ops = LUN_CCDECR | LUN_INDECR; 306 } else { 307 el.le_ops = LUN_CCINCR | LUN_ININCR; 308 } 309 el.le_header.rqs_entry_type = cmd; 310 el.le_header.rqs_entry_count = 1; 311 el.le_reserved = opaque; 312 if (IS_SCSI(isp)) { 313 el.le_tgt = tgt; 314 el.le_lun = lun; 315 } else if (isp->isp_maxluns <= 16) { 316 el.le_lun = lun; 317 } 318 319 if (isp_getrqentry(isp, &iptr, &optr, &outp)) { 320 isp_prt(isp, ISP_LOGWARN, 321 "Request Queue Overflow in isp_lun_cmd"); 322 return (-1); 323 } 324 ISP_SWIZ_ENABLE_LUN(isp, outp, &el); 325 ISP_TDQE(isp, "isp_lun_cmd", (int) optr, &el); 326 ISP_ADD_REQUEST(isp, iptr); 327 return (0); 328 } 329 330 331 int 332 isp_target_put_entry(isp, ap) 333 struct ispsoftc *isp; 334 void *ap; 335 { 336 void *outp; 337 u_int16_t iptr, optr; 338 u_int8_t etype = ((isphdr_t *) ap)->rqs_entry_type; 339 340 if (isp_getrqentry(isp, &iptr, &optr, &outp)) { 341 isp_prt(isp, ISP_LOGWARN, 342 "Request Queue Overflow in isp_target_put_entry"); 343 return (-1); 344 } 345 switch (etype) { 346 case RQSTYPE_ATIO: 347 ISP_SWIZ_ATIO(isp, outp, ap); 348 break; 349 case RQSTYPE_ATIO2: 350 ISP_SWIZ_ATIO2(isp, outp, ap); 351 break; 352 case RQSTYPE_CTIO: 353 ISP_SWIZ_CTIO(isp, outp, ap); 354 break; 355 case RQSTYPE_CTIO2: 356 ISP_SWIZ_CTIO2(isp, outp, ap); 357 break; 358 default: 359 isp_prt(isp, ISP_LOGERR, 360 "Unknown type 0x%x in isp_put_entry", etype); 361 return (-1); 362 } 363 364 ISP_TDQE(isp, "isp_target_put_entry", (int) optr, ap);; 365 366 ISP_ADD_REQUEST(isp, iptr); 367 return (0); 368 } 369 370 int 371 isp_target_put_atio(isp, iid, tgt, lun, ttype, tval) 372 struct ispsoftc *isp; 373 int iid; 374 int tgt; 375 int lun; 376 int ttype; 377 int tval; 378 { 379 union { 380 at_entry_t _atio; 381 at2_entry_t _atio2; 382 } atun; 383 384 MEMZERO(&atun, sizeof atun); 385 if (IS_FC(isp)) { 386 atun._atio2.at_header.rqs_entry_type = RQSTYPE_ATIO2; 387 atun._atio2.at_header.rqs_entry_count = 1; 388 if (isp->isp_maxluns > 16) { 389 atun._atio2.at_scclun = (u_int16_t) lun; 390 } else { 391 atun._atio2.at_lun = (u_int8_t) lun; 392 } 393 atun._atio2.at_status = CT_OK; 394 } else { 395 atun._atio.at_header.rqs_entry_type = RQSTYPE_ATIO; 396 atun._atio.at_header.rqs_entry_count = 1; 397 atun._atio.at_iid = iid; 398 atun._atio.at_tgt = tgt; 399 atun._atio.at_lun = lun; 400 atun._atio.at_tag_type = ttype; 401 atun._atio.at_tag_val = tval; 402 atun._atio.at_status = CT_OK; 403 } 404 return (isp_target_put_entry(isp, &atun)); 405 } 406 407 /* 408 * Command completion- both for handling cases of no resources or 409 * no blackhole driver, or other cases where we have to, inline, 410 * finish the command sanely, or for normal command completion. 411 * 412 * The 'completion' code value has the scsi status byte in the low 8 bits. 413 * If status is a CHECK CONDITION and bit 8 is nonzero, then bits 12..15 have 414 * the sense key and bits 16..23 have the ASCQ and bits 24..31 have the ASC 415 * values. 416 * 417 * NB: the key, asc, ascq, cannot be used for parallel SCSI as it doesn't 418 * NB: inline SCSI sense reporting. 419 * 420 * For both parallel && fibre channel, we use the feature that does 421 * an automatic resource autoreplenish so we don't have then later do 422 * put of an atio to replenish the f/w's resource count. 423 */ 424 425 int 426 isp_endcmd(struct ispsoftc *isp, void *arg, u_int32_t code, u_int32_t hdl) 427 { 428 int sts; 429 union { 430 ct_entry_t _ctio; 431 ct2_entry_t _ctio2; 432 } un; 433 434 MEMZERO(&un, sizeof un); 435 sts = code & 0xff; 436 437 if (IS_FC(isp)) { 438 at2_entry_t *aep = arg; 439 ct2_entry_t *cto = &un._ctio2; 440 441 cto->ct_header.rqs_entry_type = RQSTYPE_CTIO2; 442 cto->ct_header.rqs_entry_count = 1; 443 cto->ct_iid = aep->at_iid; 444 if (isp->isp_maxluns <= 16) { 445 cto->ct_lun = aep->at_lun; 446 } 447 cto->ct_rxid = aep->at_rxid; 448 cto->rsp.m1.ct_scsi_status = sts & 0xff; 449 cto->ct_flags = CT2_SENDSTATUS | CT2_NO_DATA | CT2_FLAG_MODE1; 450 if (hdl == 0) { 451 cto->ct_flags |= CT2_CCINCR; 452 } 453 if (aep->at_datalen) { 454 cto->ct_resid = aep->at_datalen; 455 cto->ct_flags |= CT2_DATA_UNDER; 456 } 457 if ((sts & 0xff) == SCSI_CHECK && (sts & ECMD_SVALID)) { 458 cto->rsp.m1.ct_resp[0] = 0xf0; 459 cto->rsp.m1.ct_resp[2] = (code >> 12) & 0xf; 460 cto->rsp.m1.ct_resp[7] = 8; 461 cto->rsp.m1.ct_resp[12] = (code >> 24) & 0xff; 462 cto->rsp.m1.ct_resp[13] = (code >> 16) & 0xff; 463 cto->rsp.m1.ct_senselen = 16; 464 cto->ct_flags |= CT2_SNSLEN_VALID; 465 } 466 cto->ct_reserved = hdl; 467 } else { 468 at_entry_t *aep = arg; 469 ct_entry_t *cto = &un._ctio; 470 471 cto->ct_header.rqs_entry_type = RQSTYPE_CTIO; 472 cto->ct_header.rqs_entry_count = 1; 473 cto->ct_iid = aep->at_iid; 474 cto->ct_tgt = aep->at_tgt; 475 cto->ct_lun = aep->at_lun; 476 cto->ct_tag_type = aep->at_tag_type; 477 cto->ct_tag_val = aep->at_tag_val; 478 cto->ct_flags = CT_SENDSTATUS | CT_NO_DATA; 479 if (hdl == 0) { 480 cto->ct_flags |= CT_CCINCR; 481 } 482 cto->ct_scsi_status = sts; 483 cto->ct_reserved = hdl; 484 } 485 return (isp_target_put_entry(isp, &un)); 486 } 487 488 void 489 isp_target_async(isp, bus, event) 490 struct ispsoftc *isp; 491 int bus; 492 int event; 493 { 494 tmd_event_t evt; 495 tmd_msg_t msg; 496 497 switch (event) { 498 /* 499 * These three we handle here to propagate an effective bus reset 500 * upstream, but these do not require any immediate notify actions 501 * so we return when done. 502 */ 503 case ASYNC_LIP_OCCURRED: 504 case ASYNC_LOOP_UP: 505 case ASYNC_LOOP_DOWN: 506 evt.ev_bus = bus; 507 evt.ev_event = event; 508 (void) isp_async(isp, ISPASYNC_TARGET_EVENT, &evt); 509 return; 510 511 case ASYNC_LOOP_RESET: 512 case ASYNC_BUS_RESET: 513 case ASYNC_TIMEOUT_RESET: 514 if (IS_FC(isp)) { 515 return; /* we'll be getting an inotify instead */ 516 } 517 evt.ev_bus = bus; 518 evt.ev_event = event; 519 (void) isp_async(isp, ISPASYNC_TARGET_EVENT, &evt); 520 break; 521 case ASYNC_DEVICE_RESET: 522 /* 523 * Bus Device Reset resets a specific target, so 524 * we pass this as a synthesized message. 525 */ 526 MEMZERO(&msg, sizeof msg); 527 if (IS_FC(isp)) { 528 msg.nt_iid = 529 ((fcparam *)isp->isp_param)->isp_loopid; 530 } else { 531 msg.nt_iid = 532 ((sdparam *)isp->isp_param)->isp_initiator_id; 533 } 534 msg.nt_bus = bus; 535 msg.nt_msg[0] = MSG_BUS_DEV_RESET; 536 (void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg); 537 break; 538 default: 539 isp_prt(isp, ISP_LOGERR, 540 "isp_target_async: unknown event 0x%x", event); 541 break; 542 } 543 if (isp->isp_state == ISP_RUNSTATE) 544 isp_notify_ack(isp, NULL); 545 } 546 547 548 /* 549 * Process a received message. 550 * The ISP firmware can handle most messages, there are only 551 * a few that we need to deal with: 552 * - abort: clean up the current command 553 * - abort tag and clear queue 554 */ 555 556 static void 557 isp_got_msg(isp, bus, inp) 558 struct ispsoftc *isp; 559 int bus; 560 in_entry_t *inp; 561 { 562 u_int8_t status = inp->in_status & ~QLTM_SVALID; 563 564 if (status == IN_IDE_RECEIVED || status == IN_MSG_RECEIVED) { 565 tmd_msg_t msg; 566 567 MEMZERO(&msg, sizeof (msg)); 568 msg.nt_bus = bus; 569 msg.nt_iid = inp->in_iid; 570 msg.nt_tgt = inp->in_tgt; 571 msg.nt_lun = inp->in_lun; 572 msg.nt_tagtype = inp->in_tag_type; 573 msg.nt_tagval = inp->in_tag_val; 574 MEMCPY(msg.nt_msg, inp->in_msg, IN_MSGLEN); 575 (void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg); 576 } else { 577 isp_prt(isp, ISP_LOGERR, 578 "unknown immediate notify status 0x%x", inp->in_status); 579 } 580 } 581 582 /* 583 * Synthesize a message from the task management flags in a FCP_CMND_IU. 584 */ 585 static void 586 isp_got_msg_fc(isp, bus, inp) 587 struct ispsoftc *isp; 588 int bus; 589 in_fcentry_t *inp; 590 { 591 static char *f1 = "%s from iid %d lun %d seq 0x%x"; 592 static char *f2 = 593 "unknown %s 0x%x lun %d iid %d task flags 0x%x seq 0x%x\n"; 594 595 if (inp->in_status != IN_MSG_RECEIVED) { 596 isp_prt(isp, ISP_LOGINFO, f2, "immediate notify status", 597 inp->in_status, inp->in_lun, inp->in_iid, 598 inp->in_task_flags, inp->in_seqid); 599 } else { 600 tmd_msg_t msg; 601 602 MEMZERO(&msg, sizeof (msg)); 603 msg.nt_bus = bus; 604 msg.nt_iid = inp->in_iid; 605 if (isp->isp_maxluns > 16) { 606 msg.nt_lun = inp->in_scclun; 607 } else { 608 msg.nt_lun = inp->in_lun; 609 } 610 msg.nt_tagval = inp->in_seqid; 611 612 if (inp->in_task_flags & TASK_FLAGS_ABORT_TASK) { 613 isp_prt(isp, ISP_LOGINFO, f1, "ABORT TASK", 614 inp->in_iid, inp->in_lun, inp->in_seqid); 615 msg.nt_msg[0] = MSG_ABORT_TAG; 616 } else if (inp->in_task_flags & TASK_FLAGS_CLEAR_TASK_SET) { 617 isp_prt(isp, ISP_LOGINFO, f1, "CLEAR TASK SET", 618 inp->in_iid, inp->in_lun, inp->in_seqid); 619 msg.nt_msg[0] = MSG_CLEAR_QUEUE; 620 } else if (inp->in_task_flags & TASK_FLAGS_TARGET_RESET) { 621 isp_prt(isp, ISP_LOGINFO, f1, "TARGET RESET", 622 inp->in_iid, inp->in_lun, inp->in_seqid); 623 msg.nt_msg[0] = MSG_BUS_DEV_RESET; 624 } else if (inp->in_task_flags & TASK_FLAGS_CLEAR_ACA) { 625 isp_prt(isp, ISP_LOGINFO, f1, "CLEAR ACA", 626 inp->in_iid, inp->in_lun, inp->in_seqid); 627 /* ???? */ 628 msg.nt_msg[0] = MSG_REL_RECOVERY; 629 } else if (inp->in_task_flags & TASK_FLAGS_TERMINATE_TASK) { 630 isp_prt(isp, ISP_LOGINFO, f1, "TERMINATE TASK", 631 inp->in_iid, inp->in_lun, inp->in_seqid); 632 msg.nt_msg[0] = MSG_TERM_IO_PROC; 633 } else { 634 isp_prt(isp, ISP_LOGWARN, f2, "task flag", 635 inp->in_status, inp->in_lun, inp->in_iid, 636 inp->in_task_flags, inp->in_seqid); 637 } 638 if (msg.nt_msg[0]) { 639 (void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg); 640 } 641 } 642 } 643 644 static void 645 isp_notify_ack(isp, arg) 646 struct ispsoftc *isp; 647 void *arg; 648 { 649 char storage[QENTRY_LEN]; 650 u_int16_t iptr, optr; 651 void *outp; 652 653 if (isp_getrqentry(isp, &iptr, &optr, &outp)) { 654 isp_prt(isp, ISP_LOGWARN, 655 "Request Queue Overflow For isp_notify_ack"); 656 return; 657 } 658 659 MEMZERO(storage, QENTRY_LEN); 660 661 if (IS_FC(isp)) { 662 na_fcentry_t *na = (na_fcentry_t *) storage; 663 if (arg) { 664 in_fcentry_t *inp = arg; 665 MEMCPY(storage, arg, sizeof (isphdr_t)); 666 na->na_iid = inp->in_iid; 667 if (isp->isp_maxluns > 16) { 668 na->na_lun = inp->in_scclun; 669 } else { 670 na->na_lun = inp->in_lun; 671 } 672 na->na_task_flags = inp->in_task_flags; 673 na->na_seqid = inp->in_seqid; 674 na->na_flags = NAFC_RCOUNT; 675 if (inp->in_status == IN_RESET) { 676 na->na_flags |= NAFC_RST_CLRD; 677 } 678 } else { 679 na->na_flags = NAFC_RST_CLRD; 680 } 681 na->na_header.rqs_entry_type = RQSTYPE_NOTIFY_ACK; 682 na->na_header.rqs_entry_count = 1; 683 ISP_SWIZ_NOT_ACK_FC(isp, outp, na); 684 } else { 685 na_entry_t *na = (na_entry_t *) storage; 686 if (arg) { 687 in_entry_t *inp = arg; 688 MEMCPY(storage, arg, sizeof (isphdr_t)); 689 na->na_iid = inp->in_iid; 690 na->na_lun = inp->in_lun; 691 na->na_tgt = inp->in_tgt; 692 na->na_seqid = inp->in_seqid; 693 if (inp->in_status == IN_RESET) { 694 na->na_event = NA_RST_CLRD; 695 } 696 } else { 697 na->na_event = NA_RST_CLRD; 698 } 699 na->na_header.rqs_entry_type = RQSTYPE_NOTIFY_ACK; 700 na->na_header.rqs_entry_count = 1; 701 ISP_SWIZ_NOT_ACK(isp, outp, na); 702 } 703 ISP_TDQE(isp, "isp_notify_ack", (int) optr, storage); 704 ISP_ADD_REQUEST(isp, iptr); 705 } 706 707 static void 708 isp_handle_atio(isp, aep) 709 struct ispsoftc *isp; 710 at_entry_t *aep; 711 { 712 int lun; 713 lun = aep->at_lun; 714 /* 715 * The firmware status (except for the QLTM_SVALID bit) indicates 716 * why this ATIO was sent to us. 717 * 718 * If QLTM_SVALID is set, the firware has recommended Sense Data. 719 * 720 * If the DISCONNECTS DISABLED bit is set in the flags field, 721 * we're still connected on the SCSI bus - i.e. the initiator 722 * did not set DiscPriv in the identify message. We don't care 723 * about this so it's ignored. 724 */ 725 726 switch(aep->at_status & ~QLTM_SVALID) { 727 case AT_PATH_INVALID: 728 /* 729 * ATIO rejected by the firmware due to disabled lun. 730 */ 731 isp_prt(isp, ISP_LOGERR, 732 "rejected ATIO for disabled lun %d", lun); 733 break; 734 case AT_NOCAP: 735 /* 736 * Requested Capability not available 737 * We sent an ATIO that overflowed the firmware's 738 * command resource count. 739 */ 740 isp_prt(isp, ISP_LOGERR, 741 "rejected ATIO for lun %d because of command count" 742 " overflow", lun); 743 break; 744 745 case AT_BDR_MSG: 746 /* 747 * If we send an ATIO to the firmware to increment 748 * its command resource count, and the firmware is 749 * recovering from a Bus Device Reset, it returns 750 * the ATIO with this status. We set the command 751 * resource count in the Enable Lun entry and no 752 * not increment it. Therefore we should never get 753 * this status here. 754 */ 755 isp_prt(isp, ISP_LOGERR, atiocope, lun); 756 break; 757 758 case AT_CDB: /* Got a CDB */ 759 case AT_PHASE_ERROR: /* Bus Phase Sequence Error */ 760 /* 761 * Punt to platform specific layer. 762 */ 763 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, aep); 764 break; 765 766 case AT_RESET: 767 /* 768 * A bus reset came along an blew away this command. Why 769 * they do this in addition the async event code stuff, 770 * I dunno. 771 * 772 * Ignore it because the async event will clear things 773 * up for us. 774 */ 775 isp_prt(isp, ISP_LOGWARN, atior, lun, aep->at_iid); 776 break; 777 778 779 default: 780 isp_prt(isp, ISP_LOGERR, 781 "Unknown ATIO status 0x%x from initiator %d for lun %d", 782 aep->at_status, aep->at_iid, lun); 783 (void) isp_target_put_atio(isp, aep->at_iid, aep->at_tgt, 784 lun, aep->at_tag_type, aep->at_tag_val); 785 break; 786 } 787 } 788 789 static void 790 isp_handle_atio2(isp, aep) 791 struct ispsoftc *isp; 792 at2_entry_t *aep; 793 { 794 int lun; 795 796 if (isp->isp_maxluns > 16) { 797 lun = aep->at_scclun; 798 } else { 799 lun = aep->at_lun; 800 } 801 802 /* 803 * The firmware status (except for the QLTM_SVALID bit) indicates 804 * why this ATIO was sent to us. 805 * 806 * If QLTM_SVALID is set, the firware has recommended Sense Data. 807 * 808 * If the DISCONNECTS DISABLED bit is set in the flags field, 809 * we're still connected on the SCSI bus - i.e. the initiator 810 * did not set DiscPriv in the identify message. We don't care 811 * about this so it's ignored. 812 */ 813 814 switch(aep->at_status & ~QLTM_SVALID) { 815 case AT_PATH_INVALID: 816 /* 817 * ATIO rejected by the firmware due to disabled lun. 818 */ 819 isp_prt(isp, ISP_LOGERR, 820 "rejected ATIO2 for disabled lun %d", lun); 821 break; 822 case AT_NOCAP: 823 /* 824 * Requested Capability not available 825 * We sent an ATIO that overflowed the firmware's 826 * command resource count. 827 */ 828 isp_prt(isp, ISP_LOGERR, 829 "rejected ATIO2 for lun %d- command count overflow", lun); 830 break; 831 832 case AT_BDR_MSG: 833 /* 834 * If we send an ATIO to the firmware to increment 835 * its command resource count, and the firmware is 836 * recovering from a Bus Device Reset, it returns 837 * the ATIO with this status. We set the command 838 * resource count in the Enable Lun entry and no 839 * not increment it. Therefore we should never get 840 * this status here. 841 */ 842 isp_prt(isp, ISP_LOGERR, atiocope, lun); 843 break; 844 845 case AT_CDB: /* Got a CDB */ 846 /* 847 * Punt to platform specific layer. 848 */ 849 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, aep); 850 break; 851 852 case AT_RESET: 853 /* 854 * A bus reset came along an blew away this command. Why 855 * they do this in addition the async event code stuff, 856 * I dunno. 857 * 858 * Ignore it because the async event will clear things 859 * up for us. 860 */ 861 isp_prt(isp, ISP_LOGERR, atior, lun, aep->at_iid); 862 break; 863 864 865 default: 866 isp_prt(isp, ISP_LOGERR, 867 "Unknown ATIO2 status 0x%x from initiator %d for lun %d", 868 aep->at_status, aep->at_iid, lun); 869 (void) isp_target_put_atio(isp, aep->at_iid, 0, lun, 0, 0); 870 break; 871 } 872 } 873 874 static void 875 isp_handle_ctio(isp, ct) 876 struct ispsoftc *isp; 877 ct_entry_t *ct; 878 { 879 XS_T *xs; 880 int pl = ISP_LOGTDEBUG2; 881 char *fmsg = NULL; 882 883 if (ct->ct_reserved) { 884 xs = isp_find_xs(isp, ct->ct_reserved); 885 if (xs == NULL) 886 pl = ISP_LOGALL; 887 } else { 888 pl = ISP_LOGTDEBUG1; 889 xs = NULL; 890 } 891 892 switch(ct->ct_status & ~QLTM_SVALID) { 893 case CT_OK: 894 /* 895 * There are generally 3 possibilities as to why we'd get 896 * this condition: 897 * We disconnected after receiving a CDB. 898 * We sent or received data. 899 * We sent status & command complete. 900 */ 901 902 if (ct->ct_flags & CT_SENDSTATUS) { 903 break; 904 } else if ((ct->ct_flags & CT_DATAMASK) == CT_NO_DATA) { 905 /* 906 * Nothing to do in this case. 907 */ 908 isp_prt(isp, pl, "CTIO- iid %d disconnected OK", 909 ct->ct_iid); 910 return; 911 } 912 break; 913 914 case CT_BDR_MSG: 915 /* 916 * Bus Device Reset message received or the SCSI Bus has 917 * been Reset; the firmware has gone to Bus Free. 918 * 919 * The firmware generates an async mailbox interupt to 920 * notify us of this and returns outstanding CTIOs with this 921 * status. These CTIOs are handled in that same way as 922 * CT_ABORTED ones, so just fall through here. 923 */ 924 fmsg = "Bus Device Reset"; 925 /*FALLTHROUGH*/ 926 case CT_RESET: 927 if (fmsg == NULL) 928 fmsg = "Bus Reset"; 929 /*FALLTHROUGH*/ 930 case CT_ABORTED: 931 /* 932 * When an Abort message is received the firmware goes to 933 * Bus Free and returns all outstanding CTIOs with the status 934 * set, then sends us an Immediate Notify entry. 935 */ 936 if (fmsg == NULL) 937 fmsg = "ABORT TASK sent by Initiator"; 938 939 isp_prt(isp, ISP_LOGWARN, "CTIO destroyed by %s", fmsg); 940 break; 941 942 case CT_INVAL: 943 /* 944 * CTIO rejected by the firmware due to disabled lun. 945 * "Cannot Happen". 946 */ 947 isp_prt(isp, ISP_LOGERR, 948 "Firmware rejected CTIO for disabled lun %d", 949 ct->ct_lun); 950 break; 951 952 case CT_NOPATH: 953 /* 954 * CTIO rejected by the firmware due "no path for the 955 * nondisconnecting nexus specified". This means that 956 * we tried to access the bus while a non-disconnecting 957 * command is in process. 958 */ 959 isp_prt(isp, ISP_LOGERR, 960 "Firmware rejected CTIO for bad nexus %d/%d/%d", 961 ct->ct_iid, ct->ct_tgt, ct->ct_lun); 962 break; 963 964 case CT_RSELTMO: 965 fmsg = "Reselection"; 966 /*FALLTHROUGH*/ 967 case CT_TIMEOUT: 968 if (fmsg == NULL) 969 fmsg = "Command"; 970 isp_prt(isp, ISP_LOGERR, "Firmware timed out on %s", fmsg); 971 break; 972 973 case CT_ERR: 974 fmsg = "Completed with Error"; 975 /*FALLTHROUGH*/ 976 case CT_PHASE_ERROR: 977 if (fmsg == NULL) 978 fmsg = "Phase Sequence Error"; 979 /*FALLTHROUGH*/ 980 case CT_TERMINATED: 981 if (fmsg == NULL) 982 fmsg = "terminated by TERMINATE TRANSFER"; 983 /*FALLTHROUGH*/ 984 case CT_NOACK: 985 if (fmsg == NULL) 986 fmsg = "unacknowledged Immediate Notify pending"; 987 988 isp_prt(isp, ISP_LOGERR, "CTIO returned by f/w- %s", fmsg); 989 #if 0 990 if (status & SENSEVALID) { 991 bcopy((caddr_t) (cep + CTIO_SENSE_OFFSET), 992 (caddr_t) &cdp->cd_sensedata, 993 sizeof(scsi_sense_t)); 994 cdp->cd_flags |= CDF_SENSEVALID; 995 } 996 #endif 997 break; 998 default: 999 isp_prt(isp, ISP_LOGERR, "Unknown CTIO status 0x%x", 1000 ct->ct_status & ~QLTM_SVALID); 1001 break; 1002 } 1003 1004 if (xs == NULL) { 1005 /* 1006 * There may be more than one CTIO for a data transfer, 1007 * or this may be a status CTIO we're not monitoring. 1008 * 1009 * The assumption is that they'll all be returned in the 1010 * order we got them. 1011 */ 1012 if (ct->ct_reserved == 0) { 1013 if ((ct->ct_flags & CT_SENDSTATUS) == 0) { 1014 isp_prt(isp, pl, 1015 "intermediate CTIO completed ok"); 1016 } else { 1017 isp_prt(isp, pl, 1018 "unmonitored CTIO completed ok"); 1019 } 1020 } else { 1021 isp_prt(isp, pl, 1022 "NO xs for CTIO (handle 0x%x) status 0x%x", 1023 ct->ct_reserved, ct->ct_status & ~QLTM_SVALID); 1024 } 1025 } else { 1026 if (ct->ct_flags & CT_SENDSTATUS) { 1027 /* 1028 * Sent status and command complete. 1029 * 1030 * We're now really done with this command, so we 1031 * punt to the platform dependent layers because 1032 * only there can we do the appropriate command 1033 * complete thread synchronization. 1034 */ 1035 isp_prt(isp, pl, "status CTIO complete"); 1036 } else { 1037 /* 1038 * Final CTIO completed. Release DMA resources and 1039 * notify platform dependent layers. 1040 */ 1041 isp_prt(isp, pl, "data CTIO complete"); 1042 ISP_DMAFREE(isp, xs, ct->ct_reserved); 1043 } 1044 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, ct); 1045 /* 1046 * The platform layer will destroy the handle if appropriate. 1047 */ 1048 } 1049 } 1050 1051 static void 1052 isp_handle_ctio2(isp, ct) 1053 struct ispsoftc *isp; 1054 ct2_entry_t *ct; 1055 { 1056 XS_T *xs; 1057 int pl = ISP_LOGTDEBUG2; 1058 char *fmsg = NULL; 1059 1060 if (ct->ct_reserved) { 1061 xs = isp_find_xs(isp, ct->ct_reserved); 1062 if (xs == NULL) 1063 pl = ISP_LOGALL; 1064 } else { 1065 pl = ISP_LOGTDEBUG1; 1066 xs = NULL; 1067 } 1068 1069 switch(ct->ct_status & ~QLTM_SVALID) { 1070 case CT_OK: 1071 /* 1072 * There are generally 2 possibilities as to why we'd get 1073 * this condition: 1074 * We sent or received data. 1075 * We sent status & command complete. 1076 */ 1077 1078 break; 1079 1080 case CT_BDR_MSG: 1081 /* 1082 * Bus Device Reset message received or the SCSI Bus has 1083 * been Reset; the firmware has gone to Bus Free. 1084 * 1085 * The firmware generates an async mailbox interupt to 1086 * notify us of this and returns outstanding CTIOs with this 1087 * status. These CTIOs are handled in that same way as 1088 * CT_ABORTED ones, so just fall through here. 1089 */ 1090 fmsg = "Bus Device Reset"; 1091 /*FALLTHROUGH*/ 1092 case CT_RESET: 1093 if (fmsg == NULL) 1094 fmsg = "Bus Reset"; 1095 /*FALLTHROUGH*/ 1096 case CT_ABORTED: 1097 /* 1098 * When an Abort message is received the firmware goes to 1099 * Bus Free and returns all outstanding CTIOs with the status 1100 * set, then sends us an Immediate Notify entry. 1101 */ 1102 if (fmsg == NULL) 1103 fmsg = "ABORT TASK sent by Initiator"; 1104 1105 isp_prt(isp, ISP_LOGERR, "CTIO2 destroyed by %s", fmsg); 1106 break; 1107 1108 case CT_INVAL: 1109 /* 1110 * CTIO rejected by the firmware - invalid data direction. 1111 */ 1112 isp_prt(isp, ISP_LOGERR, "CTIO2 had wrong data directiond"); 1113 break; 1114 1115 case CT_NOPATH: 1116 /* 1117 * CTIO rejected by the firmware due "no path for the 1118 * nondisconnecting nexus specified". This means that 1119 * we tried to access the bus while a non-disconnecting 1120 * command is in process. 1121 */ 1122 isp_prt(isp, ISP_LOGERR, 1123 "Firmware rejected CTIO2 for bad nexus %d->%d", 1124 ct->ct_iid, ct->ct_lun); 1125 break; 1126 1127 case CT_RSELTMO: 1128 fmsg = "Reselection"; 1129 /*FALLTHROUGH*/ 1130 case CT_TIMEOUT: 1131 if (fmsg == NULL) 1132 fmsg = "Command"; 1133 isp_prt(isp, ISP_LOGERR, "Firmware timed out on %s", fmsg); 1134 break; 1135 1136 case CT_ERR: 1137 fmsg = "Completed with Error"; 1138 /*FALLTHROUGH*/ 1139 case CT_PHASE_ERROR: /* Bus phase sequence error */ 1140 if (fmsg == NULL) 1141 fmsg = "Phase Sequence Error"; 1142 /*FALLTHROUGH*/ 1143 case CT_TERMINATED: 1144 if (fmsg == NULL) 1145 fmsg = "terminated by TERMINATE TRANSFER"; 1146 /*FALLTHROUGH*/ 1147 case CT_LOGOUT: 1148 if (fmsg == NULL) 1149 fmsg = "Port Logout"; 1150 /*FALLTHROUGH*/ 1151 case CT_PORTNOTAVAIL: 1152 if (fmsg == NULL) 1153 fmsg = "Port not available"; 1154 case CT_NOACK: 1155 if (fmsg == NULL) 1156 fmsg = "unacknowledged Immediate Notify pending"; 1157 1158 isp_prt(isp, ISP_LOGERR, "CTIO returned by f/w- %s", fmsg); 1159 #if 0 1160 if (status & SENSEVALID) { 1161 bcopy((caddr_t) (cep + CTIO_SENSE_OFFSET), 1162 (caddr_t) &cdp->cd_sensedata, 1163 sizeof(scsi_sense_t)); 1164 cdp->cd_flags |= CDF_SENSEVALID; 1165 } 1166 #endif 1167 break; 1168 1169 case CT_INVRXID: 1170 /* 1171 * CTIO rejected by the firmware because an invalid RX_ID. 1172 * Just print a message. 1173 */ 1174 isp_prt(isp, ISP_LOGERR, 1175 "CTIO2 completed with Invalid RX_ID 0x%x", ct->ct_rxid); 1176 break; 1177 1178 default: 1179 isp_prt(isp, ISP_LOGERR, "Unknown CTIO status 0x%x", 1180 ct->ct_status & ~QLTM_SVALID); 1181 break; 1182 } 1183 1184 if (xs == NULL) { 1185 /* 1186 * There may be more than one CTIO for a data transfer, 1187 * or this may be a status CTIO we're not monitoring. 1188 * 1189 * The assumption is that they'll all be returned in the 1190 * order we got them. 1191 */ 1192 if (ct->ct_reserved == 0) { 1193 if ((ct->ct_flags & CT_SENDSTATUS) == 0) { 1194 isp_prt(isp, pl, 1195 "intermediate CTIO completed ok"); 1196 } else { 1197 isp_prt(isp, pl, 1198 "unmonitored CTIO completed ok"); 1199 } 1200 } else { 1201 isp_prt(isp, pl, 1202 "NO xs for CTIO (handle 0x%x) status 0x%x", 1203 ct->ct_reserved, ct->ct_status & ~QLTM_SVALID); 1204 } 1205 } else { 1206 if (ct->ct_flags & CT_SENDSTATUS) { 1207 /* 1208 * Sent status and command complete. 1209 * 1210 * We're now really done with this command, so we 1211 * punt to the platform dependent layers because 1212 * only there can we do the appropriate command 1213 * complete thread synchronization. 1214 */ 1215 isp_prt(isp, pl, "status CTIO complete"); 1216 } else { 1217 /* 1218 * Final CTIO completed. Release DMA resources and 1219 * notify platform dependent layers. 1220 */ 1221 isp_prt(isp, pl, "data CTIO complete"); 1222 ISP_DMAFREE(isp, xs, ct->ct_reserved); 1223 } 1224 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, ct); 1225 /* 1226 * The platform layer will destroy the handle if appropriate. 1227 */ 1228 } 1229 } 1230 #endif 1231