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 const char atiocope[] = 50 "ATIO returned for lun %d because it was in the middle of Bus Device Reset"; 51 static const char atior[] = 52 "ATIO returned for lun %d from initiator %d because a Bus Reset occurred"; 53 54 static void isp_got_msg(struct ispsoftc *, int, in_entry_t *); 55 static void isp_got_msg_fc(struct ispsoftc *, int, in_fcentry_t *); 56 static void isp_notify_ack(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(struct ispsoftc *isp, void *vptr, u_int16_t *optrp) 110 { 111 u_int16_t status, seqid; 112 union { 113 at_entry_t *atiop; 114 at2_entry_t *at2iop; 115 ct_entry_t *ctiop; 116 ct2_entry_t *ct2iop; 117 lun_entry_t *lunenp; 118 in_entry_t *inotp; 119 in_fcentry_t *inot_fcp; 120 na_entry_t *nackp; 121 na_fcentry_t *nack_fcp; 122 isphdr_t *hp; 123 void * *vp; 124 #define atiop unp.atiop 125 #define at2iop unp.at2iop 126 #define ctiop unp.ctiop 127 #define ct2iop unp.ct2iop 128 #define lunenp unp.lunenp 129 #define inotp unp.inotp 130 #define inot_fcp unp.inot_fcp 131 #define nackp unp.nackp 132 #define nack_fcp unp.nack_fcp 133 #define hdrp unp.hp 134 } unp; 135 int bus, rval = 0; 136 137 unp.vp = vptr; 138 139 ISP_TDQE(isp, "isp_target_notify", (int) *optrp, vptr); 140 141 switch(hdrp->rqs_entry_type) { 142 case RQSTYPE_ATIO: 143 isp_handle_atio(isp, atiop); 144 break; 145 case RQSTYPE_CTIO: 146 isp_handle_ctio(isp, ctiop); 147 break; 148 case RQSTYPE_ATIO2: 149 isp_handle_atio2(isp, at2iop); 150 break; 151 case RQSTYPE_CTIO2: 152 isp_handle_ctio2(isp, ct2iop); 153 break; 154 case RQSTYPE_ENABLE_LUN: 155 case RQSTYPE_MODIFY_LUN: 156 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, vptr); 157 break; 158 159 case RQSTYPE_NOTIFY: 160 /* 161 * Either the ISP received a SCSI message it can't 162 * handle, or it's returning an Immed. Notify entry 163 * we sent. We can send Immed. Notify entries to 164 * increment the firmware's resource count for them 165 * (we set this initially in the Enable Lun entry). 166 */ 167 bus = 0; 168 if (IS_FC(isp)) { 169 status = inot_fcp->in_status; 170 seqid = inot_fcp->in_seqid; 171 } else { 172 status = inotp->in_status & 0xff; 173 seqid = inotp->in_seqid; 174 if (IS_DUALBUS(isp)) { 175 bus = (inotp->in_iid & 0x80) >> 7; 176 inotp->in_iid &= ~0x80; 177 } 178 } 179 isp_prt(isp, ISP_LOGTDEBUG1, 180 "Immediate Notify, status=0x%x seqid=0x%x", status, seqid); 181 switch (status) { 182 case IN_RESET: 183 (void) isp_async(isp, ISPASYNC_BUS_RESET, &bus); 184 break; 185 case IN_MSG_RECEIVED: 186 case IN_IDE_RECEIVED: 187 if (IS_FC(isp)) { 188 isp_got_msg_fc(isp, bus, vptr); 189 } else { 190 isp_got_msg(isp, bus, vptr); 191 } 192 break; 193 case IN_RSRC_UNAVAIL: 194 isp_prt(isp, ISP_LOGWARN, "Firmware out of ATIOs"); 195 break; 196 case IN_ABORT_TASK: 197 isp_prt(isp, ISP_LOGWARN, 198 "Abort Task for Initiator %d RX_ID 0x%x", 199 inot_fcp->in_iid, seqid); 200 break; 201 case IN_PORT_LOGOUT: 202 isp_prt(isp, ISP_LOGWARN, 203 "Port Logout for Initiator %d RX_ID 0x%x", 204 inot_fcp->in_iid, seqid); 205 break; 206 case IN_PORT_CHANGED: 207 isp_prt(isp, ISP_LOGWARN, 208 "Port Changed for Initiator %d RX_ID 0x%x", 209 inot_fcp->in_iid, seqid); 210 break; 211 case IN_GLOBAL_LOGO: 212 isp_prt(isp, ISP_LOGWARN, "All ports logged out"); 213 break; 214 default: 215 isp_prt(isp, ISP_LOGERR, 216 "bad status (0x%x) in isp_target_notify", status); 217 break; 218 } 219 isp_notify_ack(isp, vptr); 220 break; 221 222 case RQSTYPE_NOTIFY_ACK: 223 /* 224 * The ISP is acknowledging our acknowledgement of an 225 * Immediate Notify entry for some asynchronous event. 226 */ 227 if (IS_FC(isp)) { 228 isp_prt(isp, ISP_LOGTDEBUG1, 229 "Notify Ack status=0x%x seqid 0x%x", 230 nack_fcp->na_status, nack_fcp->na_seqid); 231 } else { 232 isp_prt(isp, ISP_LOGTDEBUG1, 233 "Notify Ack event 0x%x status=0x%x seqid 0x%x", 234 nackp->na_event, nackp->na_status, nackp->na_seqid); 235 } 236 break; 237 default: 238 isp_prt(isp, ISP_LOGERR, 239 "Unknown entry type 0x%x in isp_target_notify", 240 hdrp->rqs_entry_type); 241 rval = -1; 242 break; 243 } 244 #undef atiop 245 #undef at2iop 246 #undef ctiop 247 #undef ct2iop 248 #undef lunenp 249 #undef inotp 250 #undef inot_fcp 251 #undef nackp 252 #undef nack_fcp 253 #undef hdrp 254 return (rval); 255 } 256 257 258 /* 259 * Toggle (on/off) target mode for bus/target/lun 260 * 261 * The caller has checked for overlap and legality. 262 * 263 * Note that not all of bus, target or lun can be paid attention to. 264 * Note also that this action will not be complete until the f/w writes 265 * response entry. The caller is responsible for synchronizing this. 266 */ 267 int 268 isp_lun_cmd(struct ispsoftc *isp, int cmd, int bus, int tgt, int lun, 269 int cmd_cnt, int inot_cnt, u_int32_t opaque) 270 { 271 lun_entry_t el; 272 u_int16_t iptr, optr; 273 void *outp; 274 275 276 MEMZERO(&el, sizeof (el)); 277 if (IS_DUALBUS(isp)) { 278 el.le_rsvd = (bus & 0x1) << 7; 279 } 280 el.le_cmd_count = cmd_cnt; 281 el.le_in_count = inot_cnt; 282 if (cmd == RQSTYPE_ENABLE_LUN) { 283 if (IS_SCSI(isp)) { 284 el.le_flags = LUN_TQAE|LUN_DISAD; 285 el.le_cdb6len = 12; 286 el.le_cdb7len = 12; 287 } 288 } else if (cmd == -RQSTYPE_ENABLE_LUN) { 289 cmd = RQSTYPE_ENABLE_LUN; 290 el.le_cmd_count = 0; 291 el.le_in_count = 0; 292 } else if (cmd == -RQSTYPE_MODIFY_LUN) { 293 cmd = RQSTYPE_MODIFY_LUN; 294 el.le_ops = LUN_CCDECR | LUN_INDECR; 295 } else { 296 el.le_ops = LUN_CCINCR | LUN_ININCR; 297 } 298 el.le_header.rqs_entry_type = cmd; 299 el.le_header.rqs_entry_count = 1; 300 el.le_reserved = opaque; 301 if (IS_SCSI(isp)) { 302 el.le_tgt = tgt; 303 el.le_lun = lun; 304 } else if (isp->isp_maxluns <= 16) { 305 el.le_lun = lun; 306 } 307 el.le_timeout = 2; 308 309 if (isp_getrqentry(isp, &iptr, &optr, &outp)) { 310 isp_prt(isp, ISP_LOGWARN, 311 "Request Queue Overflow in isp_lun_cmd"); 312 return (-1); 313 } 314 ISP_SWIZ_ENABLE_LUN(isp, outp, &el); 315 ISP_TDQE(isp, "isp_lun_cmd", (int) optr, &el); 316 ISP_ADD_REQUEST(isp, iptr); 317 return (0); 318 } 319 320 321 int 322 isp_target_put_entry(struct ispsoftc *isp, void *ap) 323 { 324 void *outp; 325 u_int16_t iptr, optr; 326 u_int8_t etype = ((isphdr_t *) ap)->rqs_entry_type; 327 328 if (isp_getrqentry(isp, &iptr, &optr, &outp)) { 329 isp_prt(isp, ISP_LOGWARN, 330 "Request Queue Overflow in isp_target_put_entry"); 331 return (-1); 332 } 333 switch (etype) { 334 case RQSTYPE_ATIO: 335 ISP_SWIZ_ATIO(isp, outp, ap); 336 break; 337 case RQSTYPE_ATIO2: 338 ISP_SWIZ_ATIO2(isp, outp, ap); 339 break; 340 case RQSTYPE_CTIO: 341 ISP_SWIZ_CTIO(isp, outp, ap); 342 break; 343 case RQSTYPE_CTIO2: 344 ISP_SWIZ_CTIO2(isp, outp, ap); 345 break; 346 default: 347 isp_prt(isp, ISP_LOGERR, 348 "Unknown type 0x%x in isp_put_entry", etype); 349 return (-1); 350 } 351 352 ISP_TDQE(isp, "isp_target_put_entry", (int) optr, ap);; 353 354 ISP_ADD_REQUEST(isp, iptr); 355 return (0); 356 } 357 358 int 359 isp_target_put_atio(struct ispsoftc *isp, void *arg) 360 { 361 union { 362 at_entry_t _atio; 363 at2_entry_t _atio2; 364 } atun; 365 366 MEMZERO(&atun, sizeof atun); 367 if (IS_FC(isp)) { 368 at2_entry_t *aep = arg; 369 atun._atio2.at_header.rqs_entry_type = RQSTYPE_ATIO2; 370 atun._atio2.at_header.rqs_entry_count = 1; 371 if (isp->isp_maxluns > 16) { 372 atun._atio2.at_scclun = (u_int16_t) aep->at_scclun; 373 } else { 374 atun._atio2.at_lun = (u_int8_t) aep->at_scclun; 375 } 376 atun._atio2.at_status = CT_OK; 377 } else { 378 at_entry_t *aep = arg; 379 atun._atio.at_header.rqs_entry_type = RQSTYPE_ATIO; 380 atun._atio.at_header.rqs_entry_count = 1; 381 atun._atio.at_handle = aep->at_handle; 382 atun._atio.at_iid = aep->at_iid; 383 atun._atio.at_tgt = aep->at_tgt; 384 atun._atio.at_lun = aep->at_lun; 385 atun._atio.at_tag_type = aep->at_tag_type; 386 atun._atio.at_tag_val = aep->at_tag_val; 387 atun._atio.at_status = (aep->at_flags & AT_TQAE); 388 atun._atio.at_status |= CT_OK; 389 } 390 return (isp_target_put_entry(isp, &atun)); 391 } 392 393 /* 394 * Command completion- both for handling cases of no resources or 395 * no blackhole driver, or other cases where we have to, inline, 396 * finish the command sanely, or for normal command completion. 397 * 398 * The 'completion' code value has the scsi status byte in the low 8 bits. 399 * If status is a CHECK CONDITION and bit 8 is nonzero, then bits 12..15 have 400 * the sense key and bits 16..23 have the ASCQ and bits 24..31 have the ASC 401 * values. 402 * 403 * NB: the key, asc, ascq, cannot be used for parallel SCSI as it doesn't 404 * NB: inline SCSI sense reporting. As such, we lose this information. XXX. 405 * 406 * For both parallel && fibre channel, we use the feature that does 407 * an automatic resource autoreplenish so we don't have then later do 408 * put of an atio to replenish the f/w's resource count. 409 */ 410 411 int 412 isp_endcmd(struct ispsoftc *isp, void *arg, u_int32_t code, u_int16_t hdl) 413 { 414 int sts; 415 union { 416 ct_entry_t _ctio; 417 ct2_entry_t _ctio2; 418 } un; 419 420 MEMZERO(&un, sizeof un); 421 sts = code & 0xff; 422 423 if (IS_FC(isp)) { 424 at2_entry_t *aep = arg; 425 ct2_entry_t *cto = &un._ctio2; 426 427 cto->ct_header.rqs_entry_type = RQSTYPE_CTIO2; 428 cto->ct_header.rqs_entry_count = 1; 429 cto->ct_iid = aep->at_iid; 430 if (isp->isp_maxluns <= 16) { 431 cto->ct_lun = aep->at_lun; 432 } 433 cto->ct_rxid = aep->at_rxid; 434 cto->rsp.m1.ct_scsi_status = sts & 0xff; 435 cto->ct_flags = CT2_SENDSTATUS | CT2_NO_DATA | CT2_FLAG_MODE1; 436 if (hdl == 0) { 437 cto->ct_flags |= CT2_CCINCR; 438 } 439 if (aep->at_datalen) { 440 cto->ct_resid = aep->at_datalen; 441 cto->rsp.m1.ct_scsi_status |= CT2_DATA_UNDER; 442 } 443 if ((sts & 0xff) == SCSI_CHECK && (sts & ECMD_SVALID)) { 444 cto->rsp.m1.ct_resp[0] = 0xf0; 445 cto->rsp.m1.ct_resp[2] = (code >> 12) & 0xf; 446 cto->rsp.m1.ct_resp[7] = 8; 447 cto->rsp.m1.ct_resp[12] = (code >> 24) & 0xff; 448 cto->rsp.m1.ct_resp[13] = (code >> 16) & 0xff; 449 cto->rsp.m1.ct_senselen = 16; 450 cto->rsp.m1.ct_scsi_status |= CT2_SNSLEN_VALID; 451 } 452 cto->ct_syshandle = hdl; 453 } else { 454 at_entry_t *aep = arg; 455 ct_entry_t *cto = &un._ctio; 456 457 cto->ct_header.rqs_entry_type = RQSTYPE_CTIO; 458 cto->ct_header.rqs_entry_count = 1; 459 cto->ct_fwhandle = aep->at_handle; 460 cto->ct_iid = aep->at_iid; 461 cto->ct_tgt = aep->at_tgt; 462 cto->ct_lun = aep->at_lun; 463 cto->ct_tag_type = aep->at_tag_type; 464 cto->ct_tag_val = aep->at_tag_val; 465 if (aep->at_flags & AT_TQAE) { 466 cto->ct_flags |= CT_TQAE; 467 } 468 cto->ct_flags = CT_SENDSTATUS | CT_NO_DATA; 469 if (hdl == 0) { 470 cto->ct_flags |= CT_CCINCR; 471 } 472 cto->ct_scsi_status = sts; 473 cto->ct_syshandle = hdl; 474 } 475 return (isp_target_put_entry(isp, &un)); 476 } 477 478 void 479 isp_target_async(struct ispsoftc *isp, int bus, int event) 480 { 481 tmd_event_t evt; 482 tmd_msg_t msg; 483 484 switch (event) { 485 /* 486 * These three we handle here to propagate an effective bus reset 487 * upstream, but these do not require any immediate notify actions 488 * so we return when done. 489 */ 490 case ASYNC_LIP_OCCURRED: 491 case ASYNC_LOOP_UP: 492 case ASYNC_LOOP_DOWN: 493 evt.ev_bus = bus; 494 evt.ev_event = event; 495 (void) isp_async(isp, ISPASYNC_TARGET_EVENT, &evt); 496 return; 497 498 case ASYNC_LOOP_RESET: 499 case ASYNC_BUS_RESET: 500 case ASYNC_TIMEOUT_RESET: 501 if (IS_FC(isp)) { 502 return; /* we'll be getting an inotify instead */ 503 } 504 evt.ev_bus = bus; 505 evt.ev_event = event; 506 (void) isp_async(isp, ISPASYNC_TARGET_EVENT, &evt); 507 break; 508 case ASYNC_DEVICE_RESET: 509 /* 510 * Bus Device Reset resets a specific target, so 511 * we pass this as a synthesized message. 512 */ 513 MEMZERO(&msg, sizeof msg); 514 if (IS_FC(isp)) { 515 msg.nt_iid = FCPARAM(isp)->isp_loopid; 516 } else { 517 msg.nt_iid = SDPARAM(isp)->isp_initiator_id; 518 } 519 msg.nt_bus = bus; 520 msg.nt_msg[0] = MSG_BUS_DEV_RESET; 521 (void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg); 522 break; 523 default: 524 isp_prt(isp, ISP_LOGERR, 525 "isp_target_async: unknown event 0x%x", event); 526 break; 527 } 528 if (isp->isp_state == ISP_RUNSTATE) 529 isp_notify_ack(isp, NULL); 530 } 531 532 533 /* 534 * Process a received message. 535 * The ISP firmware can handle most messages, there are only 536 * a few that we need to deal with: 537 * - abort: clean up the current command 538 * - abort tag and clear queue 539 */ 540 541 static void 542 isp_got_msg(struct ispsoftc *isp, int bus, in_entry_t *inp) 543 { 544 u_int8_t status = inp->in_status & ~QLTM_SVALID; 545 546 if (status == IN_IDE_RECEIVED || status == IN_MSG_RECEIVED) { 547 tmd_msg_t msg; 548 549 MEMZERO(&msg, sizeof (msg)); 550 msg.nt_bus = bus; 551 msg.nt_iid = inp->in_iid; 552 msg.nt_tgt = inp->in_tgt; 553 msg.nt_lun = inp->in_lun; 554 msg.nt_tagtype = inp->in_tag_type; 555 msg.nt_tagval = inp->in_tag_val; 556 MEMCPY(msg.nt_msg, inp->in_msg, IN_MSGLEN); 557 (void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg); 558 } else { 559 isp_prt(isp, ISP_LOGERR, 560 "unknown immediate notify status 0x%x", inp->in_status); 561 } 562 } 563 564 /* 565 * Synthesize a message from the task management flags in a FCP_CMND_IU. 566 */ 567 static void 568 isp_got_msg_fc(struct ispsoftc *isp, int bus, in_fcentry_t *inp) 569 { 570 static const char f1[] = "%s from iid %d lun %d seq 0x%x"; 571 static const char f2[] = 572 "unknown %s 0x%x lun %d iid %d task flags 0x%x seq 0x%x\n"; 573 574 if (inp->in_status != IN_MSG_RECEIVED) { 575 isp_prt(isp, ISP_LOGINFO, f2, "immediate notify status", 576 inp->in_status, inp->in_lun, inp->in_iid, 577 inp->in_task_flags, inp->in_seqid); 578 } else { 579 tmd_msg_t msg; 580 581 MEMZERO(&msg, sizeof (msg)); 582 msg.nt_bus = bus; 583 msg.nt_iid = inp->in_iid; 584 if (isp->isp_maxluns > 16) { 585 msg.nt_lun = inp->in_scclun; 586 } else { 587 msg.nt_lun = inp->in_lun; 588 } 589 msg.nt_tagval = inp->in_seqid; 590 591 if (inp->in_task_flags & TASK_FLAGS_ABORT_TASK) { 592 isp_prt(isp, ISP_LOGINFO, f1, "ABORT TASK", 593 inp->in_iid, inp->in_lun, inp->in_seqid); 594 msg.nt_msg[0] = MSG_ABORT_TAG; 595 } else if (inp->in_task_flags & TASK_FLAGS_CLEAR_TASK_SET) { 596 isp_prt(isp, ISP_LOGINFO, f1, "CLEAR TASK SET", 597 inp->in_iid, inp->in_lun, inp->in_seqid); 598 msg.nt_msg[0] = MSG_CLEAR_QUEUE; 599 } else if (inp->in_task_flags & TASK_FLAGS_TARGET_RESET) { 600 isp_prt(isp, ISP_LOGINFO, f1, "TARGET RESET", 601 inp->in_iid, inp->in_lun, inp->in_seqid); 602 msg.nt_msg[0] = MSG_BUS_DEV_RESET; 603 } else if (inp->in_task_flags & TASK_FLAGS_CLEAR_ACA) { 604 isp_prt(isp, ISP_LOGINFO, f1, "CLEAR ACA", 605 inp->in_iid, inp->in_lun, inp->in_seqid); 606 /* ???? */ 607 msg.nt_msg[0] = MSG_REL_RECOVERY; 608 } else if (inp->in_task_flags & TASK_FLAGS_TERMINATE_TASK) { 609 isp_prt(isp, ISP_LOGINFO, f1, "TERMINATE TASK", 610 inp->in_iid, inp->in_lun, inp->in_seqid); 611 msg.nt_msg[0] = MSG_TERM_IO_PROC; 612 } else { 613 isp_prt(isp, ISP_LOGWARN, f2, "task flag", 614 inp->in_status, inp->in_lun, inp->in_iid, 615 inp->in_task_flags, inp->in_seqid); 616 } 617 if (msg.nt_msg[0]) { 618 (void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg); 619 } 620 } 621 } 622 623 static void 624 isp_notify_ack(struct ispsoftc *isp, void *arg) 625 { 626 char storage[QENTRY_LEN]; 627 u_int16_t iptr, optr; 628 void *outp; 629 630 if (isp_getrqentry(isp, &iptr, &optr, &outp)) { 631 isp_prt(isp, ISP_LOGWARN, 632 "Request Queue Overflow For isp_notify_ack"); 633 return; 634 } 635 636 MEMZERO(storage, QENTRY_LEN); 637 638 if (IS_FC(isp)) { 639 na_fcentry_t *na = (na_fcentry_t *) storage; 640 if (arg) { 641 in_fcentry_t *inp = arg; 642 MEMCPY(storage, arg, sizeof (isphdr_t)); 643 na->na_iid = inp->in_iid; 644 if (isp->isp_maxluns > 16) { 645 na->na_lun = inp->in_scclun; 646 } else { 647 na->na_lun = inp->in_lun; 648 } 649 na->na_task_flags = inp->in_task_flags; 650 na->na_seqid = inp->in_seqid; 651 na->na_flags = NAFC_RCOUNT; 652 if (inp->in_status == IN_RESET) { 653 na->na_flags |= NAFC_RST_CLRD; 654 } 655 } else { 656 na->na_flags = NAFC_RST_CLRD; 657 } 658 na->na_header.rqs_entry_type = RQSTYPE_NOTIFY_ACK; 659 na->na_header.rqs_entry_count = 1; 660 ISP_SWIZ_NOT_ACK_FC(isp, outp, na); 661 } else { 662 na_entry_t *na = (na_entry_t *) storage; 663 if (arg) { 664 in_entry_t *inp = arg; 665 MEMCPY(storage, arg, sizeof (isphdr_t)); 666 na->na_iid = inp->in_iid; 667 na->na_lun = inp->in_lun; 668 na->na_tgt = inp->in_tgt; 669 na->na_seqid = inp->in_seqid; 670 if (inp->in_status == IN_RESET) { 671 na->na_event = NA_RST_CLRD; 672 } 673 } else { 674 na->na_event = NA_RST_CLRD; 675 } 676 na->na_header.rqs_entry_type = RQSTYPE_NOTIFY_ACK; 677 na->na_header.rqs_entry_count = 1; 678 ISP_SWIZ_NOT_ACK(isp, outp, na); 679 } 680 ISP_TDQE(isp, "isp_notify_ack", (int) optr, storage); 681 ISP_ADD_REQUEST(isp, iptr); 682 } 683 684 static void 685 isp_handle_atio(struct ispsoftc *isp, at_entry_t *aep) 686 { 687 int lun; 688 lun = aep->at_lun; 689 /* 690 * The firmware status (except for the QLTM_SVALID bit) indicates 691 * why this ATIO was sent to us. 692 * 693 * If QLTM_SVALID is set, the firware has recommended Sense Data. 694 * 695 * If the DISCONNECTS DISABLED bit is set in the flags field, 696 * we're still connected on the SCSI bus - i.e. the initiator 697 * did not set DiscPriv in the identify message. We don't care 698 * about this so it's ignored. 699 */ 700 701 switch(aep->at_status & ~QLTM_SVALID) { 702 case AT_PATH_INVALID: 703 /* 704 * ATIO rejected by the firmware due to disabled lun. 705 */ 706 isp_prt(isp, ISP_LOGERR, 707 "rejected ATIO for disabled lun %d", lun); 708 break; 709 case AT_NOCAP: 710 /* 711 * Requested Capability not available 712 * We sent an ATIO that overflowed the firmware's 713 * command resource count. 714 */ 715 isp_prt(isp, ISP_LOGERR, 716 "rejected ATIO for lun %d because of command count" 717 " overflow", lun); 718 break; 719 720 case AT_BDR_MSG: 721 /* 722 * If we send an ATIO to the firmware to increment 723 * its command resource count, and the firmware is 724 * recovering from a Bus Device Reset, it returns 725 * the ATIO with this status. We set the command 726 * resource count in the Enable Lun entry and no 727 * not increment it. Therefore we should never get 728 * this status here. 729 */ 730 isp_prt(isp, ISP_LOGERR, atiocope, lun); 731 break; 732 733 case AT_CDB: /* Got a CDB */ 734 case AT_PHASE_ERROR: /* Bus Phase Sequence Error */ 735 /* 736 * Punt to platform specific layer. 737 */ 738 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, aep); 739 break; 740 741 case AT_RESET: 742 /* 743 * A bus reset came along an blew away this command. Why 744 * they do this in addition the async event code stuff, 745 * I dunno. 746 * 747 * Ignore it because the async event will clear things 748 * up for us. 749 */ 750 isp_prt(isp, ISP_LOGWARN, atior, lun, aep->at_iid); 751 break; 752 753 754 default: 755 isp_prt(isp, ISP_LOGERR, 756 "Unknown ATIO status 0x%x from initiator %d for lun %d", 757 aep->at_status, aep->at_iid, lun); 758 (void) isp_target_put_atio(isp, aep); 759 break; 760 } 761 } 762 763 static void 764 isp_handle_atio2(struct ispsoftc *isp, at2_entry_t *aep) 765 { 766 int lun; 767 768 if (isp->isp_maxluns > 16) { 769 lun = aep->at_scclun; 770 } else { 771 lun = aep->at_lun; 772 } 773 774 /* 775 * The firmware status (except for the QLTM_SVALID bit) indicates 776 * why this ATIO was sent to us. 777 * 778 * If QLTM_SVALID is set, the firware has recommended Sense Data. 779 * 780 * If the DISCONNECTS DISABLED bit is set in the flags field, 781 * we're still connected on the SCSI bus - i.e. the initiator 782 * did not set DiscPriv in the identify message. We don't care 783 * about this so it's ignored. 784 */ 785 786 switch(aep->at_status & ~QLTM_SVALID) { 787 case AT_PATH_INVALID: 788 /* 789 * ATIO rejected by the firmware due to disabled lun. 790 */ 791 isp_prt(isp, ISP_LOGERR, 792 "rejected ATIO2 for disabled lun %d", lun); 793 break; 794 case AT_NOCAP: 795 /* 796 * Requested Capability not available 797 * We sent an ATIO that overflowed the firmware's 798 * command resource count. 799 */ 800 isp_prt(isp, ISP_LOGERR, 801 "rejected ATIO2 for lun %d- command count overflow", lun); 802 break; 803 804 case AT_BDR_MSG: 805 /* 806 * If we send an ATIO to the firmware to increment 807 * its command resource count, and the firmware is 808 * recovering from a Bus Device Reset, it returns 809 * the ATIO with this status. We set the command 810 * resource count in the Enable Lun entry and no 811 * not increment it. Therefore we should never get 812 * this status here. 813 */ 814 isp_prt(isp, ISP_LOGERR, atiocope, lun); 815 break; 816 817 case AT_CDB: /* Got a CDB */ 818 /* 819 * Punt to platform specific layer. 820 */ 821 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, aep); 822 break; 823 824 case AT_RESET: 825 /* 826 * A bus reset came along an blew away this command. Why 827 * they do this in addition the async event code stuff, 828 * I dunno. 829 * 830 * Ignore it because the async event will clear things 831 * up for us. 832 */ 833 isp_prt(isp, ISP_LOGERR, atior, lun, aep->at_iid); 834 break; 835 836 837 default: 838 isp_prt(isp, ISP_LOGERR, 839 "Unknown ATIO2 status 0x%x from initiator %d for lun %d", 840 aep->at_status, aep->at_iid, lun); 841 (void) isp_target_put_atio(isp, aep); 842 break; 843 } 844 } 845 846 static void 847 isp_handle_ctio(struct ispsoftc *isp, ct_entry_t *ct) 848 { 849 void *xs; 850 int pl = ISP_LOGTDEBUG2; 851 char *fmsg = NULL; 852 853 if (ct->ct_syshandle) { 854 xs = isp_find_xs(isp, ct->ct_syshandle); 855 if (xs == NULL) 856 pl = ISP_LOGALL; 857 } else { 858 xs = NULL; 859 } 860 861 switch(ct->ct_status & ~QLTM_SVALID) { 862 case CT_OK: 863 /* 864 * There are generally 3 possibilities as to why we'd get 865 * this condition: 866 * We disconnected after receiving a CDB. 867 * We sent or received data. 868 * We sent status & command complete. 869 */ 870 871 if (ct->ct_flags & CT_SENDSTATUS) { 872 break; 873 } else if ((ct->ct_flags & CT_DATAMASK) == CT_NO_DATA) { 874 /* 875 * Nothing to do in this case. 876 */ 877 isp_prt(isp, pl, "CTIO- iid %d disconnected OK", 878 ct->ct_iid); 879 return; 880 } 881 break; 882 883 case CT_BDR_MSG: 884 /* 885 * Bus Device Reset message received or the SCSI Bus has 886 * been Reset; the firmware has gone to Bus Free. 887 * 888 * The firmware generates an async mailbox interupt to 889 * notify us of this and returns outstanding CTIOs with this 890 * status. These CTIOs are handled in that same way as 891 * CT_ABORTED ones, so just fall through here. 892 */ 893 fmsg = "Bus Device Reset"; 894 /*FALLTHROUGH*/ 895 case CT_RESET: 896 if (fmsg == NULL) 897 fmsg = "Bus Reset"; 898 /*FALLTHROUGH*/ 899 case CT_ABORTED: 900 /* 901 * When an Abort message is received the firmware goes to 902 * Bus Free and returns all outstanding CTIOs with the status 903 * set, then sends us an Immediate Notify entry. 904 */ 905 if (fmsg == NULL) 906 fmsg = "ABORT TASK sent by Initiator"; 907 908 isp_prt(isp, ISP_LOGWARN, "CTIO destroyed by %s", fmsg); 909 break; 910 911 case CT_INVAL: 912 /* 913 * CTIO rejected by the firmware due to disabled lun. 914 * "Cannot Happen". 915 */ 916 isp_prt(isp, ISP_LOGERR, 917 "Firmware rejected CTIO for disabled lun %d", 918 ct->ct_lun); 919 break; 920 921 case CT_NOPATH: 922 /* 923 * CTIO rejected by the firmware due "no path for the 924 * nondisconnecting nexus specified". This means that 925 * we tried to access the bus while a non-disconnecting 926 * command is in process. 927 */ 928 isp_prt(isp, ISP_LOGERR, 929 "Firmware rejected CTIO for bad nexus %d/%d/%d", 930 ct->ct_iid, ct->ct_tgt, ct->ct_lun); 931 break; 932 933 case CT_RSELTMO: 934 fmsg = "Reselection"; 935 /*FALLTHROUGH*/ 936 case CT_TIMEOUT: 937 if (fmsg == NULL) 938 fmsg = "Command"; 939 isp_prt(isp, ISP_LOGERR, "Firmware timed out on %s", fmsg); 940 break; 941 942 case CT_PANIC: 943 if (fmsg == NULL) 944 fmsg = "Unrecoverable Error"; 945 /*FALLTHROUGH*/ 946 case CT_ERR: 947 if (fmsg == NULL) 948 fmsg = "Completed with Error"; 949 /*FALLTHROUGH*/ 950 case CT_PHASE_ERROR: 951 if (fmsg == NULL) 952 fmsg = "Phase Sequence Error"; 953 /*FALLTHROUGH*/ 954 case CT_TERMINATED: 955 if (fmsg == NULL) 956 fmsg = "terminated by TERMINATE TRANSFER"; 957 /*FALLTHROUGH*/ 958 case CT_NOACK: 959 if (fmsg == NULL) 960 fmsg = "unacknowledged Immediate Notify pending"; 961 isp_prt(isp, ISP_LOGERR, "CTIO returned by f/w- %s", fmsg); 962 break; 963 default: 964 isp_prt(isp, ISP_LOGERR, "Unknown CTIO status 0x%x", 965 ct->ct_status & ~QLTM_SVALID); 966 break; 967 } 968 969 if (xs == NULL) { 970 /* 971 * There may be more than one CTIO for a data transfer, 972 * or this may be a status CTIO we're not monitoring. 973 * 974 * The assumption is that they'll all be returned in the 975 * order we got them. 976 */ 977 if (ct->ct_syshandle == 0) { 978 if ((ct->ct_flags & CT_SENDSTATUS) == 0) { 979 isp_prt(isp, pl, 980 "intermediate CTIO completed ok"); 981 } else { 982 isp_prt(isp, pl, 983 "unmonitored CTIO completed ok"); 984 } 985 } else { 986 isp_prt(isp, pl, 987 "NO xs for CTIO (handle 0x%x) status 0x%x", 988 ct->ct_syshandle, ct->ct_status & ~QLTM_SVALID); 989 } 990 } else { 991 /* 992 * Final CTIO completed. Release DMA resources and 993 * notify platform dependent layers. 994 */ 995 if ((ct->ct_flags & CT_DATAMASK) != CT_NO_DATA) { 996 ISP_DMAFREE(isp, xs, ct->ct_syshandle); 997 } 998 isp_prt(isp, pl, "final CTIO complete"); 999 /* 1000 * The platform layer will destroy the handle if appropriate. 1001 */ 1002 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, ct); 1003 } 1004 } 1005 1006 static void 1007 isp_handle_ctio2(struct ispsoftc *isp, ct2_entry_t *ct) 1008 { 1009 XS_T *xs; 1010 int pl = ISP_LOGTDEBUG2; 1011 char *fmsg = NULL; 1012 1013 if (ct->ct_syshandle) { 1014 xs = isp_find_xs(isp, ct->ct_syshandle); 1015 if (xs == NULL) 1016 pl = ISP_LOGALL; 1017 } else { 1018 xs = NULL; 1019 } 1020 1021 switch(ct->ct_status & ~QLTM_SVALID) { 1022 case CT_BUS_ERROR: 1023 isp_prt(isp, ISP_LOGERR, "PCI DMA Bus Error"); 1024 /* FALL Through */ 1025 case CT_DATA_OVER: 1026 case CT_DATA_UNDER: 1027 case CT_OK: 1028 /* 1029 * There are generally 2 possibilities as to why we'd get 1030 * this condition: 1031 * We sent or received data. 1032 * We sent status & command complete. 1033 */ 1034 1035 break; 1036 1037 case CT_BDR_MSG: 1038 /* 1039 * Target Reset function received. 1040 * 1041 * The firmware generates an async mailbox interupt to 1042 * notify us of this and returns outstanding CTIOs with this 1043 * status. These CTIOs are handled in that same way as 1044 * CT_ABORTED ones, so just fall through here. 1045 */ 1046 fmsg = "TARGET RESET Task Management Function Received"; 1047 /*FALLTHROUGH*/ 1048 case CT_RESET: 1049 if (fmsg == NULL) 1050 fmsg = "LIP Reset"; 1051 /*FALLTHROUGH*/ 1052 case CT_ABORTED: 1053 /* 1054 * When an Abort message is received the firmware goes to 1055 * Bus Free and returns all outstanding CTIOs with the status 1056 * set, then sends us an Immediate Notify entry. 1057 */ 1058 if (fmsg == NULL) 1059 fmsg = "ABORT Task Management Function Received"; 1060 1061 isp_prt(isp, ISP_LOGERR, "CTIO2 destroyed by %s", fmsg); 1062 break; 1063 1064 case CT_INVAL: 1065 /* 1066 * CTIO rejected by the firmware - invalid data direction. 1067 */ 1068 isp_prt(isp, ISP_LOGERR, "CTIO2 had wrong data directiond"); 1069 break; 1070 1071 case CT_RSELTMO: 1072 fmsg = "failure to reconnect to initiator"; 1073 /*FALLTHROUGH*/ 1074 case CT_TIMEOUT: 1075 if (fmsg == NULL) 1076 fmsg = "command"; 1077 isp_prt(isp, ISP_LOGERR, "Firmware timed out on %s", fmsg); 1078 break; 1079 1080 case CT_ERR: 1081 fmsg = "Completed with Error"; 1082 /*FALLTHROUGH*/ 1083 case CT_LOGOUT: 1084 if (fmsg == NULL) 1085 fmsg = "Port Logout"; 1086 /*FALLTHROUGH*/ 1087 case CT_PORTNOTAVAIL: 1088 if (fmsg == NULL) 1089 fmsg = "Port not available"; 1090 case CT_PORTCHANGED: 1091 if (fmsg == NULL) 1092 fmsg = "Port Changed"; 1093 case CT_NOACK: 1094 if (fmsg == NULL) 1095 fmsg = "unacknowledged Immediate Notify pending"; 1096 isp_prt(isp, ISP_LOGERR, "CTIO returned by f/w- %s", fmsg); 1097 break; 1098 1099 case CT_INVRXID: 1100 /* 1101 * CTIO rejected by the firmware because an invalid RX_ID. 1102 * Just print a message. 1103 */ 1104 isp_prt(isp, ISP_LOGERR, 1105 "CTIO2 completed with Invalid RX_ID 0x%x", ct->ct_rxid); 1106 break; 1107 1108 default: 1109 isp_prt(isp, ISP_LOGERR, "Unknown CTIO2 status 0x%x", 1110 ct->ct_status & ~QLTM_SVALID); 1111 break; 1112 } 1113 1114 if (xs == NULL) { 1115 /* 1116 * There may be more than one CTIO for a data transfer, 1117 * or this may be a status CTIO we're not monitoring. 1118 * 1119 * The assumption is that they'll all be returned in the 1120 * order we got them. 1121 */ 1122 if (ct->ct_syshandle == 0) { 1123 if ((ct->ct_flags & CT_SENDSTATUS) == 0) { 1124 isp_prt(isp, pl, 1125 "intermediate CTIO completed ok"); 1126 } else { 1127 isp_prt(isp, pl, 1128 "unmonitored CTIO completed ok"); 1129 } 1130 } else { 1131 isp_prt(isp, pl, 1132 "NO xs for CTIO (handle 0x%x) status 0x%x", 1133 ct->ct_syshandle, ct->ct_status & ~QLTM_SVALID); 1134 } 1135 } else { 1136 if ((ct->ct_flags & CT2_DATAMASK) != CT2_NO_DATA) { 1137 ISP_DMAFREE(isp, xs, ct->ct_syshandle); 1138 } 1139 if (ct->ct_flags & CT_SENDSTATUS) { 1140 /* 1141 * Sent status and command complete. 1142 * 1143 * We're now really done with this command, so we 1144 * punt to the platform dependent layers because 1145 * only there can we do the appropriate command 1146 * complete thread synchronization. 1147 */ 1148 isp_prt(isp, pl, "status CTIO complete"); 1149 } else { 1150 /* 1151 * Final CTIO completed. Release DMA resources and 1152 * notify platform dependent layers. 1153 */ 1154 isp_prt(isp, pl, "data CTIO complete"); 1155 } 1156 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, ct); 1157 /* 1158 * The platform layer will destroy the handle if appropriate. 1159 */ 1160 } 1161 } 1162 #endif 1163