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 * Bug fixes gratefully acknowledged from: 33 * Oded Kedem <oded@kashya.com> 34 */ 35 /* 36 * Include header file appropriate for platform we're building on. 37 */ 38 39 #ifdef __NetBSD__ 40 #include <dev/ic/isp_netbsd.h> 41 #endif 42 #ifdef __FreeBSD__ 43 #include <dev/isp/isp_freebsd.h> 44 #endif 45 #ifdef __OpenBSD__ 46 #include <dev/ic/isp_openbsd.h> 47 #endif 48 #ifdef __linux__ 49 #include "isp_linux.h" 50 #endif 51 52 #ifdef ISP_TARGET_MODE 53 static const char atiocope[] = 54 "ATIO returned for lun %d because it was in the middle of Bus Device Reset " 55 "on bus %d"; 56 static const char atior[] = 57 "ATIO returned on for lun %d on from IID %d because a Bus Reset occurred " 58 "on bus %d"; 59 60 static void isp_got_msg(struct ispsoftc *, int, in_entry_t *); 61 static void isp_got_msg_fc(struct ispsoftc *, int, in_fcentry_t *); 62 static void isp_notify_ack(struct ispsoftc *, void *); 63 static void isp_handle_atio(struct ispsoftc *, at_entry_t *); 64 static void isp_handle_atio2(struct ispsoftc *, at2_entry_t *); 65 static void isp_handle_ctio(struct ispsoftc *, ct_entry_t *); 66 static void isp_handle_ctio2(struct ispsoftc *, ct2_entry_t *); 67 68 /* 69 * The Qlogic driver gets an interrupt to look at response queue entries. 70 * Some of these are status completions for initiatior mode commands, but 71 * if target mode is enabled, we get a whole wad of response queue entries 72 * to be handled here. 73 * 74 * Basically the split into 3 main groups: Lun Enable/Modification responses, 75 * SCSI Command processing, and Immediate Notification events. 76 * 77 * You start by writing a request queue entry to enable target mode (and 78 * establish some resource limitations which you can modify later). 79 * The f/w responds with a LUN ENABLE or LUN MODIFY response with 80 * the status of this action. If the enable was successful, you can expect... 81 * 82 * Response queue entries with SCSI commands encapsulate show up in an ATIO 83 * (Accept Target IO) type- sometimes with enough info to stop the command at 84 * this level. Ultimately the driver has to feed back to the f/w's request 85 * queue a sequence of CTIOs (continue target I/O) that describe data to 86 * be moved and/or status to be sent) and finally finishing with sending 87 * to the f/w's response queue an ATIO which then completes the handshake 88 * with the f/w for that command. There's a lot of variations on this theme, 89 * including flags you can set in the CTIO for the Qlogic 2X00 fibre channel 90 * cards that 'auto-replenish' the f/w's ATIO count, but this is the basic 91 * gist of it. 92 * 93 * The third group that can show up in the response queue are Immediate 94 * Notification events. These include things like notifications of SCSI bus 95 * resets, or Bus Device Reset messages or other messages received. This 96 * a classic oddbins area. It can get a little weird because you then turn 97 * around and acknowledge the Immediate Notify by writing an entry onto the 98 * request queue and then the f/w turns around and gives you an acknowledgement 99 * to *your* acknowledgement on the response queue (the idea being to let 100 * the f/w tell you when the event is *really* over I guess). 101 * 102 */ 103 104 105 /* 106 * A new response queue entry has arrived. The interrupt service code 107 * has already swizzled it into the platform dependent from canonical form. 108 * 109 * Because of the way this driver is designed, unfortunately most of the 110 * actual synchronization work has to be done in the platform specific 111 * code- we have no synchroniation primitives in the common code. 112 */ 113 114 int 115 isp_target_notify(struct ispsoftc *isp, void *vptr, 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 u_int8_t local[QENTRY_LEN]; 142 int bus, type, rval = 1; 143 144 type = isp_get_response_type(isp, (isphdr_t *)vptr); 145 unp.vp = vptr; 146 147 ISP_TDQE(isp, "isp_target_notify", (int) *optrp, vptr); 148 149 switch(type) { 150 case RQSTYPE_ATIO: 151 isp_get_atio(isp, atiop, (at_entry_t *) local); 152 isp_handle_atio(isp, (at_entry_t *) local); 153 break; 154 case RQSTYPE_CTIO: 155 isp_get_ctio(isp, ctiop, (ct_entry_t *) local); 156 isp_handle_ctio(isp, (ct_entry_t *) local); 157 break; 158 case RQSTYPE_ATIO2: 159 isp_get_atio2(isp, at2iop, (at2_entry_t *) local); 160 isp_handle_atio2(isp, (at2_entry_t *) local); 161 break; 162 case RQSTYPE_CTIO2: 163 isp_get_ctio2(isp, ct2iop, (ct2_entry_t *) local); 164 isp_handle_ctio2(isp, (ct2_entry_t *) local); 165 break; 166 case RQSTYPE_ENABLE_LUN: 167 case RQSTYPE_MODIFY_LUN: 168 isp_get_enable_lun(isp, lunenp, (lun_entry_t *) local); 169 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, local); 170 break; 171 172 case RQSTYPE_NOTIFY: 173 /* 174 * Either the ISP received a SCSI message it can't 175 * handle, or it's returning an Immed. Notify entry 176 * we sent. We can send Immed. Notify entries to 177 * increment the firmware's resource count for them 178 * (we set this initially in the Enable Lun entry). 179 */ 180 bus = 0; 181 if (IS_FC(isp)) { 182 isp_get_notify_fc(isp, inot_fcp, (in_fcentry_t *)local); 183 inot_fcp = (in_fcentry_t *) local; 184 status = inot_fcp->in_status; 185 seqid = inot_fcp->in_seqid; 186 } else { 187 isp_get_notify(isp, inotp, (in_entry_t *)local); 188 inotp = (in_entry_t *) local; 189 status = inotp->in_status & 0xff; 190 seqid = inotp->in_seqid; 191 if (IS_DUALBUS(isp)) { 192 bus = GET_BUS_VAL(inotp->in_iid); 193 SET_BUS_VAL(inotp->in_iid, 0); 194 } 195 } 196 isp_prt(isp, ISP_LOGTDEBUG0, 197 "Immediate Notify On Bus %d, status=0x%x seqid=0x%x", 198 bus, status, seqid); 199 200 /* 201 * ACK it right away. 202 */ 203 isp_notify_ack(isp, (status == IN_RESET)? NULL : local); 204 switch (status) { 205 case IN_RESET: 206 (void) isp_async(isp, ISPASYNC_BUS_RESET, &bus); 207 break; 208 case IN_MSG_RECEIVED: 209 case IN_IDE_RECEIVED: 210 if (IS_FC(isp)) { 211 isp_got_msg_fc(isp, bus, (in_fcentry_t *)local); 212 } else { 213 isp_got_msg(isp, bus, (in_entry_t *)local); 214 } 215 break; 216 case IN_RSRC_UNAVAIL: 217 isp_prt(isp, ISP_LOGWARN, "Firmware out of ATIOs"); 218 break; 219 case IN_PORT_LOGOUT: 220 case IN_ABORT_TASK: 221 case IN_PORT_CHANGED: 222 case IN_GLOBAL_LOGO: 223 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, &local); 224 break; 225 default: 226 isp_prt(isp, ISP_LOGERR, 227 "bad status (0x%x) in isp_target_notify", status); 228 break; 229 } 230 break; 231 232 case RQSTYPE_NOTIFY_ACK: 233 /* 234 * The ISP is acknowledging our acknowledgement of an 235 * Immediate Notify entry for some asynchronous event. 236 */ 237 if (IS_FC(isp)) { 238 isp_get_notify_ack_fc(isp, nack_fcp, 239 (na_fcentry_t *)local); 240 nack_fcp = (na_fcentry_t *)local; 241 isp_prt(isp, ISP_LOGTDEBUG1, 242 "Notify Ack status=0x%x seqid 0x%x", 243 nack_fcp->na_status, nack_fcp->na_seqid); 244 } else { 245 isp_get_notify_ack(isp, nackp, (na_entry_t *)local); 246 nackp = (na_entry_t *)local; 247 isp_prt(isp, ISP_LOGTDEBUG1, 248 "Notify Ack event 0x%x status=0x%x seqid 0x%x", 249 nackp->na_event, nackp->na_status, nackp->na_seqid); 250 } 251 break; 252 default: 253 isp_prt(isp, ISP_LOGERR, 254 "Unknown entry type 0x%x in isp_target_notify", type); 255 rval = 0; 256 break; 257 } 258 #undef atiop 259 #undef at2iop 260 #undef ctiop 261 #undef ct2iop 262 #undef lunenp 263 #undef inotp 264 #undef inot_fcp 265 #undef nackp 266 #undef nack_fcp 267 #undef hdrp 268 return (rval); 269 } 270 271 272 /* 273 * Toggle (on/off) target mode for bus/target/lun 274 * 275 * The caller has checked for overlap and legality. 276 * 277 * Note that not all of bus, target or lun can be paid attention to. 278 * Note also that this action will not be complete until the f/w writes 279 * response entry. The caller is responsible for synchronizing this. 280 */ 281 int 282 isp_lun_cmd(struct ispsoftc *isp, int cmd, int bus, int tgt, int lun, 283 int cmd_cnt, int inot_cnt, u_int32_t opaque) 284 { 285 lun_entry_t el; 286 u_int16_t nxti, optr; 287 void *outp; 288 289 290 MEMZERO(&el, sizeof (el)); 291 if (IS_DUALBUS(isp)) { 292 el.le_rsvd = (bus & 0x1) << 7; 293 } 294 el.le_cmd_count = cmd_cnt; 295 el.le_in_count = inot_cnt; 296 if (cmd == RQSTYPE_ENABLE_LUN) { 297 if (IS_SCSI(isp)) { 298 el.le_flags = LUN_TQAE|LUN_DISAD; 299 el.le_cdb6len = 12; 300 el.le_cdb7len = 12; 301 } 302 } else if (cmd == -RQSTYPE_ENABLE_LUN) { 303 cmd = RQSTYPE_ENABLE_LUN; 304 el.le_cmd_count = 0; 305 el.le_in_count = 0; 306 } else if (cmd == -RQSTYPE_MODIFY_LUN) { 307 cmd = RQSTYPE_MODIFY_LUN; 308 el.le_ops = LUN_CCDECR | LUN_INDECR; 309 } else { 310 el.le_ops = LUN_CCINCR | LUN_ININCR; 311 } 312 el.le_header.rqs_entry_type = cmd; 313 el.le_header.rqs_entry_count = 1; 314 el.le_reserved = opaque; 315 if (IS_SCSI(isp)) { 316 el.le_tgt = tgt; 317 el.le_lun = lun; 318 } else if ((FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) == 0) { 319 el.le_lun = lun; 320 } 321 el.le_timeout = 2; 322 323 if (isp_getrqentry(isp, &nxti, &optr, &outp)) { 324 isp_prt(isp, ISP_LOGERR, 325 "Request Queue Overflow in isp_lun_cmd"); 326 return (-1); 327 } 328 ISP_TDQE(isp, "isp_lun_cmd", (int) optr, &el); 329 isp_put_enable_lun(isp, &el, outp); 330 ISP_ADD_REQUEST(isp, nxti); 331 return (0); 332 } 333 334 335 int 336 isp_target_put_entry(struct ispsoftc *isp, void *ap) 337 { 338 void *outp; 339 u_int16_t nxti, optr; 340 u_int8_t etype = ((isphdr_t *) ap)->rqs_entry_type; 341 342 if (isp_getrqentry(isp, &nxti, &optr, &outp)) { 343 isp_prt(isp, ISP_LOGWARN, 344 "Request Queue Overflow in isp_target_put_entry"); 345 return (-1); 346 } 347 switch (etype) { 348 case RQSTYPE_ATIO: 349 isp_put_atio(isp, (at_entry_t *) ap, (at_entry_t *) outp); 350 break; 351 case RQSTYPE_ATIO2: 352 isp_put_atio2(isp, (at2_entry_t *) ap, (at2_entry_t *) outp); 353 break; 354 case RQSTYPE_CTIO: 355 isp_put_ctio(isp, (ct_entry_t *) ap, (ct_entry_t *) outp); 356 break; 357 case RQSTYPE_CTIO2: 358 isp_put_ctio2(isp, (ct2_entry_t *) ap, (ct2_entry_t *) outp); 359 break; 360 default: 361 isp_prt(isp, ISP_LOGERR, 362 "Unknown type 0x%x in isp_put_entry", etype); 363 return (-1); 364 } 365 366 ISP_TDQE(isp, "isp_target_put_entry", (int) optr, ap);; 367 ISP_ADD_REQUEST(isp, nxti); 368 return (0); 369 } 370 371 int 372 isp_target_put_atio(struct ispsoftc *isp, void *arg) 373 { 374 union { 375 at_entry_t _atio; 376 at2_entry_t _atio2; 377 } atun; 378 379 MEMZERO(&atun, sizeof atun); 380 if (IS_FC(isp)) { 381 at2_entry_t *aep = arg; 382 atun._atio2.at_header.rqs_entry_type = RQSTYPE_ATIO2; 383 atun._atio2.at_header.rqs_entry_count = 1; 384 if (FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) { 385 atun._atio2.at_scclun = (u_int16_t) aep->at_scclun; 386 } else { 387 atun._atio2.at_lun = (u_int8_t) aep->at_lun; 388 } 389 atun._atio2.at_iid = aep->at_iid; 390 atun._atio2.at_rxid = aep->at_rxid; 391 atun._atio2.at_status = CT_OK; 392 } else { 393 at_entry_t *aep = arg; 394 atun._atio.at_header.rqs_entry_type = RQSTYPE_ATIO; 395 atun._atio.at_header.rqs_entry_count = 1; 396 atun._atio.at_handle = aep->at_handle; 397 atun._atio.at_iid = aep->at_iid; 398 atun._atio.at_tgt = aep->at_tgt; 399 atun._atio.at_lun = aep->at_lun; 400 atun._atio.at_tag_type = aep->at_tag_type; 401 atun._atio.at_tag_val = aep->at_tag_val; 402 atun._atio.at_status = (aep->at_flags & AT_TQAE); 403 atun._atio.at_status |= CT_OK; 404 } 405 return (isp_target_put_entry(isp, &atun)); 406 } 407 408 /* 409 * Command completion- both for handling cases of no resources or 410 * no blackhole driver, or other cases where we have to, inline, 411 * finish the command sanely, or for normal command completion. 412 * 413 * The 'completion' code value has the scsi status byte in the low 8 bits. 414 * If status is a CHECK CONDITION and bit 8 is nonzero, then bits 12..15 have 415 * the sense key and bits 16..23 have the ASCQ and bits 24..31 have the ASC 416 * values. 417 * 418 * NB: the key, asc, ascq, cannot be used for parallel SCSI as it doesn't 419 * NB: inline SCSI sense reporting. As such, we lose this information. XXX. 420 * 421 * For both parallel && fibre channel, we use the feature that does 422 * an automatic resource autoreplenish so we don't have then later do 423 * put of an atio to replenish the f/w's resource count. 424 */ 425 426 int 427 isp_endcmd(struct ispsoftc *isp, void *arg, u_int32_t code, u_int16_t hdl) 428 { 429 int sts; 430 union { 431 ct_entry_t _ctio; 432 ct2_entry_t _ctio2; 433 } un; 434 435 MEMZERO(&un, sizeof un); 436 sts = code & 0xff; 437 438 if (IS_FC(isp)) { 439 at2_entry_t *aep = arg; 440 ct2_entry_t *cto = &un._ctio2; 441 442 cto->ct_header.rqs_entry_type = RQSTYPE_CTIO2; 443 cto->ct_header.rqs_entry_count = 1; 444 cto->ct_iid = aep->at_iid; 445 if ((FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) == 0) { 446 cto->ct_lun = aep->at_lun; 447 } 448 cto->ct_rxid = aep->at_rxid; 449 cto->rsp.m1.ct_scsi_status = sts & 0xff; 450 cto->ct_flags = CT2_SENDSTATUS | CT2_NO_DATA | CT2_FLAG_MODE1; 451 if (hdl == 0) { 452 cto->ct_flags |= CT2_CCINCR; 453 } 454 if (aep->at_datalen) { 455 cto->ct_resid = aep->at_datalen; 456 cto->rsp.m1.ct_scsi_status |= CT2_DATA_UNDER; 457 } 458 if ((sts & 0xff) == SCSI_CHECK && (sts & ECMD_SVALID)) { 459 cto->rsp.m1.ct_resp[0] = 0xf0; 460 cto->rsp.m1.ct_resp[2] = (code >> 12) & 0xf; 461 cto->rsp.m1.ct_resp[7] = 8; 462 cto->rsp.m1.ct_resp[12] = (code >> 24) & 0xff; 463 cto->rsp.m1.ct_resp[13] = (code >> 16) & 0xff; 464 cto->rsp.m1.ct_senselen = 16; 465 cto->rsp.m1.ct_scsi_status |= CT2_SNSLEN_VALID; 466 } 467 cto->ct_syshandle = hdl; 468 } else { 469 at_entry_t *aep = arg; 470 ct_entry_t *cto = &un._ctio; 471 472 cto->ct_header.rqs_entry_type = RQSTYPE_CTIO; 473 cto->ct_header.rqs_entry_count = 1; 474 cto->ct_fwhandle = aep->at_handle; 475 cto->ct_iid = aep->at_iid; 476 cto->ct_tgt = aep->at_tgt; 477 cto->ct_lun = aep->at_lun; 478 cto->ct_tag_type = aep->at_tag_type; 479 cto->ct_tag_val = aep->at_tag_val; 480 if (aep->at_flags & AT_TQAE) { 481 cto->ct_flags |= CT_TQAE; 482 } 483 cto->ct_flags = CT_SENDSTATUS | CT_NO_DATA; 484 if (hdl == 0) { 485 cto->ct_flags |= CT_CCINCR; 486 } 487 cto->ct_scsi_status = sts; 488 cto->ct_syshandle = hdl; 489 } 490 return (isp_target_put_entry(isp, &un)); 491 } 492 493 int 494 isp_target_async(struct ispsoftc *isp, int bus, int event) 495 { 496 tmd_event_t evt; 497 tmd_msg_t msg; 498 499 switch (event) { 500 /* 501 * These three we handle here to propagate an effective bus reset 502 * upstream, but these do not require any immediate notify actions 503 * so we return when done. 504 */ 505 case ASYNC_LIP_F8: 506 case ASYNC_LIP_OCCURRED: 507 case ASYNC_LOOP_UP: 508 case ASYNC_LOOP_DOWN: 509 case ASYNC_LOOP_RESET: 510 case ASYNC_PTPMODE: 511 /* 512 * These don't require any immediate notify actions. We used 513 * treat them like SCSI Bus Resets, but that was just plain 514 * wrong. Let the normal CTIO completion report what occurred. 515 */ 516 return (0); 517 518 case ASYNC_BUS_RESET: 519 case ASYNC_TIMEOUT_RESET: 520 if (IS_FC(isp)) { 521 return (0); /* we'll be getting an inotify instead */ 522 } 523 evt.ev_bus = bus; 524 evt.ev_event = event; 525 (void) isp_async(isp, ISPASYNC_TARGET_EVENT, &evt); 526 break; 527 case ASYNC_DEVICE_RESET: 528 /* 529 * Bus Device Reset resets a specific target, so 530 * we pass this as a synthesized message. 531 */ 532 MEMZERO(&msg, sizeof msg); 533 if (IS_FC(isp)) { 534 msg.nt_iid = FCPARAM(isp)->isp_loopid; 535 } else { 536 msg.nt_iid = SDPARAM(isp)->isp_initiator_id; 537 } 538 msg.nt_bus = bus; 539 msg.nt_msg[0] = MSG_BUS_DEV_RESET; 540 (void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg); 541 break; 542 default: 543 isp_prt(isp, ISP_LOGERR, 544 "isp_target_async: unknown event 0x%x", event); 545 break; 546 } 547 if (isp->isp_state == ISP_RUNSTATE) 548 isp_notify_ack(isp, NULL); 549 return(0); 550 } 551 552 553 /* 554 * Process a received message. 555 * The ISP firmware can handle most messages, there are only 556 * a few that we need to deal with: 557 * - abort: clean up the current command 558 * - abort tag and clear queue 559 */ 560 561 static void 562 isp_got_msg(struct ispsoftc *isp, int bus, in_entry_t *inp) 563 { 564 u_int8_t status = inp->in_status & ~QLTM_SVALID; 565 566 if (status == IN_IDE_RECEIVED || status == IN_MSG_RECEIVED) { 567 tmd_msg_t msg; 568 569 MEMZERO(&msg, sizeof (msg)); 570 msg.nt_bus = bus; 571 msg.nt_iid = inp->in_iid; 572 msg.nt_tgt = inp->in_tgt; 573 msg.nt_lun = inp->in_lun; 574 msg.nt_tagtype = inp->in_tag_type; 575 msg.nt_tagval = inp->in_tag_val; 576 MEMCPY(msg.nt_msg, inp->in_msg, IN_MSGLEN); 577 (void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg); 578 } else { 579 isp_prt(isp, ISP_LOGERR, 580 "unknown immediate notify status 0x%x", inp->in_status); 581 } 582 } 583 584 /* 585 * Synthesize a message from the task management flags in a FCP_CMND_IU. 586 */ 587 static void 588 isp_got_msg_fc(struct ispsoftc *isp, int bus, in_fcentry_t *inp) 589 { 590 int lun; 591 static const char f1[] = "%s from iid %d lun %d seq 0x%x"; 592 static const char f2[] = 593 "unknown %s 0x%x lun %d iid %d task flags 0x%x seq 0x%x\n"; 594 595 if (FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) { 596 lun = inp->in_scclun; 597 } else { 598 lun = inp->in_lun; 599 } 600 601 if (inp->in_status != IN_MSG_RECEIVED) { 602 isp_prt(isp, ISP_LOGINFO, f2, "immediate notify status", 603 inp->in_status, lun, inp->in_iid, 604 inp->in_task_flags, inp->in_seqid); 605 } else { 606 tmd_msg_t msg; 607 608 MEMZERO(&msg, sizeof (msg)); 609 msg.nt_bus = bus; 610 msg.nt_iid = inp->in_iid; 611 msg.nt_tagval = inp->in_seqid; 612 msg.nt_lun = lun; 613 614 if (inp->in_task_flags & TASK_FLAGS_ABORT_TASK) { 615 isp_prt(isp, ISP_LOGINFO, f1, "ABORT TASK", 616 inp->in_iid, lun, inp->in_seqid); 617 msg.nt_msg[0] = MSG_ABORT_TAG; 618 } else if (inp->in_task_flags & TASK_FLAGS_CLEAR_TASK_SET) { 619 isp_prt(isp, ISP_LOGINFO, f1, "CLEAR TASK SET", 620 inp->in_iid, lun, inp->in_seqid); 621 msg.nt_msg[0] = MSG_CLEAR_QUEUE; 622 } else if (inp->in_task_flags & TASK_FLAGS_TARGET_RESET) { 623 isp_prt(isp, ISP_LOGINFO, f1, "TARGET RESET", 624 inp->in_iid, lun, inp->in_seqid); 625 msg.nt_msg[0] = MSG_BUS_DEV_RESET; 626 } else if (inp->in_task_flags & TASK_FLAGS_CLEAR_ACA) { 627 isp_prt(isp, ISP_LOGINFO, f1, "CLEAR ACA", 628 inp->in_iid, lun, inp->in_seqid); 629 /* ???? */ 630 msg.nt_msg[0] = MSG_REL_RECOVERY; 631 } else if (inp->in_task_flags & TASK_FLAGS_TERMINATE_TASK) { 632 isp_prt(isp, ISP_LOGINFO, f1, "TERMINATE TASK", 633 inp->in_iid, lun, inp->in_seqid); 634 msg.nt_msg[0] = MSG_TERM_IO_PROC; 635 } else { 636 isp_prt(isp, ISP_LOGWARN, f2, "task flag", 637 inp->in_status, lun, inp->in_iid, 638 inp->in_task_flags, inp->in_seqid); 639 } 640 if (msg.nt_msg[0]) { 641 (void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg); 642 } 643 } 644 } 645 646 static void 647 isp_notify_ack(struct ispsoftc *isp, void *arg) 648 { 649 char storage[QENTRY_LEN]; 650 u_int16_t nxti, optr; 651 void *outp; 652 653 if (isp_getrqentry(isp, &nxti, &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 (FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) { 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 na->na_status = inp->in_status; 676 if (inp->in_status == IN_RESET) { 677 na->na_flags |= NAFC_RST_CLRD; 678 } 679 } else { 680 na->na_flags = NAFC_RST_CLRD; 681 } 682 na->na_header.rqs_entry_type = RQSTYPE_NOTIFY_ACK; 683 na->na_header.rqs_entry_count = 1; 684 isp_put_notify_ack_fc(isp, na, (na_fcentry_t *)outp); 685 } else { 686 na_entry_t *na = (na_entry_t *) storage; 687 if (arg) { 688 in_entry_t *inp = arg; 689 MEMCPY(storage, arg, sizeof (isphdr_t)); 690 na->na_iid = inp->in_iid; 691 na->na_lun = inp->in_lun; 692 na->na_tgt = inp->in_tgt; 693 na->na_seqid = inp->in_seqid; 694 if (inp->in_status == IN_RESET) { 695 na->na_event = NA_RST_CLRD; 696 } 697 } else { 698 na->na_event = NA_RST_CLRD; 699 } 700 na->na_header.rqs_entry_type = RQSTYPE_NOTIFY_ACK; 701 na->na_header.rqs_entry_count = 1; 702 isp_put_notify_ack(isp, na, (na_entry_t *)outp); 703 } 704 ISP_TDQE(isp, "isp_notify_ack", (int) optr, storage); 705 ISP_ADD_REQUEST(isp, nxti); 706 } 707 708 static void 709 isp_handle_atio(struct ispsoftc *isp, at_entry_t *aep) 710 { 711 int lun; 712 lun = aep->at_lun; 713 /* 714 * The firmware status (except for the QLTM_SVALID bit) indicates 715 * why this ATIO was sent to us. 716 * 717 * If QLTM_SVALID is set, the firware has recommended Sense Data. 718 * 719 * If the DISCONNECTS DISABLED bit is set in the flags field, 720 * we're still connected on the SCSI bus - i.e. the initiator 721 * did not set DiscPriv in the identify message. We don't care 722 * about this so it's ignored. 723 */ 724 725 switch(aep->at_status & ~QLTM_SVALID) { 726 case AT_PATH_INVALID: 727 /* 728 * ATIO rejected by the firmware due to disabled lun. 729 */ 730 isp_prt(isp, ISP_LOGERR, 731 "rejected ATIO for disabled lun %d", lun); 732 break; 733 case AT_NOCAP: 734 /* 735 * Requested Capability not available 736 * We sent an ATIO that overflowed the firmware's 737 * command resource count. 738 */ 739 isp_prt(isp, ISP_LOGERR, 740 "rejected ATIO for lun %d because of command count" 741 " overflow", lun); 742 break; 743 744 case AT_BDR_MSG: 745 /* 746 * If we send an ATIO to the firmware to increment 747 * its command resource count, and the firmware is 748 * recovering from a Bus Device Reset, it returns 749 * the ATIO with this status. We set the command 750 * resource count in the Enable Lun entry and do 751 * not increment it. Therefore we should never get 752 * this status here. 753 */ 754 isp_prt(isp, ISP_LOGERR, atiocope, lun, 755 GET_BUS_VAL(aep->at_iid)); 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 and 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, 776 GET_IID_VAL(aep->at_iid), GET_BUS_VAL(aep->at_iid)); 777 break; 778 779 780 default: 781 isp_prt(isp, ISP_LOGERR, 782 "Unknown ATIO status 0x%x from initiator %d for lun %d", 783 aep->at_status, aep->at_iid, lun); 784 (void) isp_target_put_atio(isp, aep); 785 break; 786 } 787 } 788 789 static void 790 isp_handle_atio2(struct ispsoftc *isp, at2_entry_t *aep) 791 { 792 int lun; 793 794 if (FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) { 795 lun = aep->at_scclun; 796 } else { 797 lun = aep->at_lun; 798 } 799 800 /* 801 * The firmware status (except for the QLTM_SVALID bit) indicates 802 * why this ATIO was sent to us. 803 * 804 * If QLTM_SVALID is set, the firware has recommended Sense Data. 805 * 806 * If the DISCONNECTS DISABLED bit is set in the flags field, 807 * we're still connected on the SCSI bus - i.e. the initiator 808 * did not set DiscPriv in the identify message. We don't care 809 * about this so it's ignored. 810 */ 811 812 switch(aep->at_status & ~QLTM_SVALID) { 813 case AT_PATH_INVALID: 814 /* 815 * ATIO rejected by the firmware due to disabled lun. 816 */ 817 isp_prt(isp, ISP_LOGERR, 818 "rejected ATIO2 for disabled lun %d", lun); 819 break; 820 case AT_NOCAP: 821 /* 822 * Requested Capability not available 823 * We sent an ATIO that overflowed the firmware's 824 * command resource count. 825 */ 826 isp_prt(isp, ISP_LOGERR, 827 "rejected ATIO2 for lun %d- command count overflow", lun); 828 break; 829 830 case AT_BDR_MSG: 831 /* 832 * If we send an ATIO to the firmware to increment 833 * its command resource count, and the firmware is 834 * recovering from a Bus Device Reset, it returns 835 * the ATIO with this status. We set the command 836 * resource count in the Enable Lun entry and no 837 * not increment it. Therefore we should never get 838 * this status here. 839 */ 840 isp_prt(isp, ISP_LOGERR, atiocope, lun, 0); 841 break; 842 843 case AT_CDB: /* Got a CDB */ 844 /* 845 * Punt to platform specific layer. 846 */ 847 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, aep); 848 break; 849 850 case AT_RESET: 851 /* 852 * A bus reset came along an blew away this command. Why 853 * they do this in addition the async event code stuff, 854 * I dunno. 855 * 856 * Ignore it because the async event will clear things 857 * up for us. 858 */ 859 isp_prt(isp, ISP_LOGERR, atior, lun, aep->at_iid, 0); 860 break; 861 862 863 default: 864 isp_prt(isp, ISP_LOGERR, 865 "Unknown ATIO2 status 0x%x from initiator %d for lun %d", 866 aep->at_status, aep->at_iid, lun); 867 (void) isp_target_put_atio(isp, aep); 868 break; 869 } 870 } 871 872 static void 873 isp_handle_ctio(struct ispsoftc *isp, ct_entry_t *ct) 874 { 875 void *xs; 876 int pl = ISP_LOGTDEBUG2; 877 char *fmsg = NULL; 878 879 if (ct->ct_syshandle) { 880 xs = isp_find_xs(isp, ct->ct_syshandle); 881 if (xs == NULL) 882 pl = ISP_LOGALL; 883 } else { 884 xs = NULL; 885 } 886 887 switch(ct->ct_status & ~QLTM_SVALID) { 888 case CT_OK: 889 /* 890 * There are generally 3 possibilities as to why we'd get 891 * this condition: 892 * We disconnected after receiving a CDB. 893 * We sent or received data. 894 * We sent status & command complete. 895 */ 896 897 if (ct->ct_flags & CT_SENDSTATUS) { 898 break; 899 } else if ((ct->ct_flags & CT_DATAMASK) == CT_NO_DATA) { 900 /* 901 * Nothing to do in this case. 902 */ 903 isp_prt(isp, pl, "CTIO- iid %d disconnected OK", 904 ct->ct_iid); 905 return; 906 } 907 break; 908 909 case CT_BDR_MSG: 910 /* 911 * Bus Device Reset message received or the SCSI Bus has 912 * been Reset; the firmware has gone to Bus Free. 913 * 914 * The firmware generates an async mailbox interupt to 915 * notify us of this and returns outstanding CTIOs with this 916 * status. These CTIOs are handled in that same way as 917 * CT_ABORTED ones, so just fall through here. 918 */ 919 fmsg = "Bus Device Reset"; 920 /*FALLTHROUGH*/ 921 case CT_RESET: 922 if (fmsg == NULL) 923 fmsg = "Bus Reset"; 924 /*FALLTHROUGH*/ 925 case CT_ABORTED: 926 /* 927 * When an Abort message is received the firmware goes to 928 * Bus Free and returns all outstanding CTIOs with the status 929 * set, then sends us an Immediate Notify entry. 930 */ 931 if (fmsg == NULL) 932 fmsg = "ABORT TAG message sent by Initiator"; 933 934 isp_prt(isp, ISP_LOGWARN, "CTIO destroyed by %s", fmsg); 935 break; 936 937 case CT_INVAL: 938 /* 939 * CTIO rejected by the firmware due to disabled lun. 940 * "Cannot Happen". 941 */ 942 isp_prt(isp, ISP_LOGERR, 943 "Firmware rejected CTIO for disabled lun %d", 944 ct->ct_lun); 945 break; 946 947 case CT_NOPATH: 948 /* 949 * CTIO rejected by the firmware due "no path for the 950 * nondisconnecting nexus specified". This means that 951 * we tried to access the bus while a non-disconnecting 952 * command is in process. 953 */ 954 isp_prt(isp, ISP_LOGERR, 955 "Firmware rejected CTIO for bad nexus %d/%d/%d", 956 ct->ct_iid, ct->ct_tgt, ct->ct_lun); 957 break; 958 959 case CT_RSELTMO: 960 fmsg = "Reselection"; 961 /*FALLTHROUGH*/ 962 case CT_TIMEOUT: 963 if (fmsg == NULL) 964 fmsg = "Command"; 965 isp_prt(isp, ISP_LOGERR, "Firmware timed out on %s", fmsg); 966 break; 967 968 case CT_PANIC: 969 if (fmsg == NULL) 970 fmsg = "Unrecoverable Error"; 971 /*FALLTHROUGH*/ 972 case CT_ERR: 973 if (fmsg == NULL) 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 isp_prt(isp, ISP_LOGERR, "CTIO returned by f/w- %s", fmsg); 988 break; 989 default: 990 isp_prt(isp, ISP_LOGERR, "Unknown CTIO status 0x%x", 991 ct->ct_status & ~QLTM_SVALID); 992 break; 993 } 994 995 if (xs == NULL) { 996 /* 997 * There may be more than one CTIO for a data transfer, 998 * or this may be a status CTIO we're not monitoring. 999 * 1000 * The assumption is that they'll all be returned in the 1001 * order we got them. 1002 */ 1003 if (ct->ct_syshandle == 0) { 1004 if ((ct->ct_flags & CT_SENDSTATUS) == 0) { 1005 isp_prt(isp, pl, 1006 "intermediate CTIO completed ok"); 1007 } else { 1008 isp_prt(isp, pl, 1009 "unmonitored CTIO completed ok"); 1010 } 1011 } else { 1012 isp_prt(isp, pl, 1013 "NO xs for CTIO (handle 0x%x) status 0x%x", 1014 ct->ct_syshandle, ct->ct_status & ~QLTM_SVALID); 1015 } 1016 } else { 1017 /* 1018 * Final CTIO completed. Release DMA resources and 1019 * notify platform dependent layers. 1020 */ 1021 if ((ct->ct_flags & CT_DATAMASK) != CT_NO_DATA) { 1022 ISP_DMAFREE(isp, xs, ct->ct_syshandle); 1023 } 1024 isp_prt(isp, pl, "final CTIO complete"); 1025 /* 1026 * The platform layer will destroy the handle if appropriate. 1027 */ 1028 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, ct); 1029 } 1030 } 1031 1032 static void 1033 isp_handle_ctio2(struct ispsoftc *isp, ct2_entry_t *ct) 1034 { 1035 XS_T *xs; 1036 int pl = ISP_LOGTDEBUG2; 1037 char *fmsg = NULL; 1038 1039 if (ct->ct_syshandle) { 1040 xs = isp_find_xs(isp, ct->ct_syshandle); 1041 if (xs == NULL) 1042 pl = ISP_LOGALL; 1043 } else { 1044 xs = NULL; 1045 } 1046 1047 switch(ct->ct_status & ~QLTM_SVALID) { 1048 case CT_BUS_ERROR: 1049 isp_prt(isp, ISP_LOGERR, "PCI DMA Bus Error"); 1050 /* FALL Through */ 1051 case CT_DATA_OVER: 1052 case CT_DATA_UNDER: 1053 case CT_OK: 1054 /* 1055 * There are generally 2 possibilities as to why we'd get 1056 * this condition: 1057 * We sent or received data. 1058 * We sent status & command complete. 1059 */ 1060 1061 break; 1062 1063 case CT_BDR_MSG: 1064 /* 1065 * Target Reset function received. 1066 * 1067 * The firmware generates an async mailbox interupt to 1068 * notify us of this and returns outstanding CTIOs with this 1069 * status. These CTIOs are handled in that same way as 1070 * CT_ABORTED ones, so just fall through here. 1071 */ 1072 fmsg = "TARGET RESET Task Management Function Received"; 1073 /*FALLTHROUGH*/ 1074 case CT_RESET: 1075 if (fmsg == NULL) 1076 fmsg = "LIP Reset"; 1077 /*FALLTHROUGH*/ 1078 case CT_ABORTED: 1079 /* 1080 * When an Abort message is received the firmware goes to 1081 * Bus Free and returns all outstanding CTIOs with the status 1082 * set, then sends us an Immediate Notify entry. 1083 */ 1084 if (fmsg == NULL) 1085 fmsg = "ABORT Task Management Function Received"; 1086 1087 isp_prt(isp, ISP_LOGERR, "CTIO2 destroyed by %s", fmsg); 1088 break; 1089 1090 case CT_INVAL: 1091 /* 1092 * CTIO rejected by the firmware - invalid data direction. 1093 */ 1094 isp_prt(isp, ISP_LOGERR, "CTIO2 had wrong data directiond"); 1095 break; 1096 1097 case CT_RSELTMO: 1098 fmsg = "failure to reconnect to initiator"; 1099 /*FALLTHROUGH*/ 1100 case CT_TIMEOUT: 1101 if (fmsg == NULL) 1102 fmsg = "command"; 1103 isp_prt(isp, ISP_LOGERR, "Firmware timed out on %s", fmsg); 1104 break; 1105 1106 case CT_ERR: 1107 fmsg = "Completed with Error"; 1108 /*FALLTHROUGH*/ 1109 case CT_LOGOUT: 1110 if (fmsg == NULL) 1111 fmsg = "Port Logout"; 1112 /*FALLTHROUGH*/ 1113 case CT_PORTNOTAVAIL: 1114 if (fmsg == NULL) 1115 fmsg = "Port not available"; 1116 case CT_PORTCHANGED: 1117 if (fmsg == NULL) 1118 fmsg = "Port Changed"; 1119 case CT_NOACK: 1120 if (fmsg == NULL) 1121 fmsg = "unacknowledged Immediate Notify pending"; 1122 isp_prt(isp, ISP_LOGERR, "CTIO returned by f/w- %s", fmsg); 1123 break; 1124 1125 case CT_INVRXID: 1126 /* 1127 * CTIO rejected by the firmware because an invalid RX_ID. 1128 * Just print a message. 1129 */ 1130 isp_prt(isp, ISP_LOGERR, 1131 "CTIO2 completed with Invalid RX_ID 0x%x", ct->ct_rxid); 1132 break; 1133 1134 default: 1135 isp_prt(isp, ISP_LOGERR, "Unknown CTIO2 status 0x%x", 1136 ct->ct_status & ~QLTM_SVALID); 1137 break; 1138 } 1139 1140 if (xs == NULL) { 1141 /* 1142 * There may be more than one CTIO for a data transfer, 1143 * or this may be a status CTIO we're not monitoring. 1144 * 1145 * The assumption is that they'll all be returned in the 1146 * order we got them. 1147 */ 1148 if (ct->ct_syshandle == 0) { 1149 if ((ct->ct_flags & CT_SENDSTATUS) == 0) { 1150 isp_prt(isp, pl, 1151 "intermediate CTIO completed ok"); 1152 } else { 1153 isp_prt(isp, pl, 1154 "unmonitored CTIO completed ok"); 1155 } 1156 } else { 1157 isp_prt(isp, pl, 1158 "NO xs for CTIO (handle 0x%x) status 0x%x", 1159 ct->ct_syshandle, ct->ct_status & ~QLTM_SVALID); 1160 } 1161 } else { 1162 if ((ct->ct_flags & CT2_DATAMASK) != CT2_NO_DATA) { 1163 ISP_DMAFREE(isp, xs, ct->ct_syshandle); 1164 } 1165 if (ct->ct_flags & CT_SENDSTATUS) { 1166 /* 1167 * Sent status and command complete. 1168 * 1169 * We're now really done with this command, so we 1170 * punt to the platform dependent layers because 1171 * only there can we do the appropriate command 1172 * complete thread synchronization. 1173 */ 1174 isp_prt(isp, pl, "status CTIO complete"); 1175 } else { 1176 /* 1177 * Final CTIO completed. Release DMA resources and 1178 * notify platform dependent layers. 1179 */ 1180 isp_prt(isp, pl, "data CTIO complete"); 1181 } 1182 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, ct); 1183 /* 1184 * The platform layer will destroy the handle if appropriate. 1185 */ 1186 } 1187 } 1188 #endif 1189