isp_target.c revision 1.14
1 /* $NetBSD: isp_target.c,v 1.14 2001/05/16 03:58:03 mjacob Exp $ */ 2 /* 3 * This driver, which is contained in NetBSD in the files: 4 * 5 * sys/dev/ic/isp.c 6 * sys/dev/ic/isp_inline.h 7 * sys/dev/ic/isp_netbsd.c 8 * sys/dev/ic/isp_netbsd.h 9 * sys/dev/ic/isp_target.c 10 * sys/dev/ic/isp_target.h 11 * sys/dev/ic/isp_tpublic.h 12 * sys/dev/ic/ispmbox.h 13 * sys/dev/ic/ispreg.h 14 * sys/dev/ic/ispvar.h 15 * sys/microcode/isp/asm_sbus.h 16 * sys/microcode/isp/asm_1040.h 17 * sys/microcode/isp/asm_1080.h 18 * sys/microcode/isp/asm_12160.h 19 * sys/microcode/isp/asm_2100.h 20 * sys/microcode/isp/asm_2200.h 21 * sys/pci/isp_pci.c 22 * sys/sbus/isp_sbus.c 23 * 24 * Is being actively maintained by Matthew Jacob (mjacob (at) netbsd.org). 25 * This driver also is shared source with FreeBSD, OpenBSD, Linux, Solaris, 26 * Linux versions. This tends to be an interesting maintenance problem. 27 * 28 * Please coordinate with Matthew Jacob on changes you wish to make here. 29 */ 30 /* 31 * Machine and OS Independent Target Mode Code for the Qlogic SCSI/FC adapters. 32 * 33 * Copyright (c) 1999, 2000, 2001 by Matthew Jacob 34 * All rights reserved. 35 * mjacob (at) feral.com 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice immediately at the beginning of the file, without modification, 42 * this list of conditions, and the following disclaimer. 43 * 2. The name of the author may not be used to endorse or promote products 44 * derived from this software without specific prior written permission. 45 * 46 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 47 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 48 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 49 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 50 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 51 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 52 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 53 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 54 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 55 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 56 * SUCH DAMAGE. 57 */ 58 59 /* 60 * Include header file appropriate for platform we're building on. 61 */ 62 63 #ifdef __NetBSD__ 64 #include <dev/ic/isp_netbsd.h> 65 #endif 66 #ifdef __FreeBSD__ 67 #include <dev/isp/isp_freebsd.h> 68 #endif 69 #ifdef __OpenBSD__ 70 #include <dev/ic/isp_openbsd.h> 71 #endif 72 #ifdef __linux__ 73 #include "isp_linux.h" 74 #endif 75 76 #ifdef ISP_TARGET_MODE 77 static const char atiocope[] = 78 "ATIO returned for lun %d because it was in the middle of Bus Device Reset"; 79 static const char atior[] = 80 "ATIO returned for lun %d from initiator %d because a Bus Reset occurred"; 81 82 static void isp_got_msg(struct ispsoftc *, int, in_entry_t *); 83 static void isp_got_msg_fc(struct ispsoftc *, int, in_fcentry_t *); 84 static void isp_notify_ack(struct ispsoftc *, void *); 85 static void isp_handle_atio(struct ispsoftc *, at_entry_t *); 86 static void isp_handle_atio2(struct ispsoftc *, at2_entry_t *); 87 static void isp_handle_ctio(struct ispsoftc *, ct_entry_t *); 88 static void isp_handle_ctio2(struct ispsoftc *, ct2_entry_t *); 89 90 /* 91 * The Qlogic driver gets an interrupt to look at response queue entries. 92 * Some of these are status completions for initiatior mode commands, but 93 * if target mode is enabled, we get a whole wad of response queue entries 94 * to be handled here. 95 * 96 * Basically the split into 3 main groups: Lun Enable/Modification responses, 97 * SCSI Command processing, and Immediate Notification events. 98 * 99 * You start by writing a request queue entry to enable target mode (and 100 * establish some resource limitations which you can modify later). 101 * The f/w responds with a LUN ENABLE or LUN MODIFY response with 102 * the status of this action. If the enable was successful, you can expect... 103 * 104 * Response queue entries with SCSI commands encapsulate show up in an ATIO 105 * (Accept Target IO) type- sometimes with enough info to stop the command at 106 * this level. Ultimately the driver has to feed back to the f/w's request 107 * queue a sequence of CTIOs (continue target I/O) that describe data to 108 * be moved and/or status to be sent) and finally finishing with sending 109 * to the f/w's response queue an ATIO which then completes the handshake 110 * with the f/w for that command. There's a lot of variations on this theme, 111 * including flags you can set in the CTIO for the Qlogic 2X00 fibre channel 112 * cards that 'auto-replenish' the f/w's ATIO count, but this is the basic 113 * gist of it. 114 * 115 * The third group that can show up in the response queue are Immediate 116 * Notification events. These include things like notifications of SCSI bus 117 * resets, or Bus Device Reset messages or other messages received. This 118 * a classic oddbins area. It can get a little weird because you then turn 119 * around and acknowledge the Immediate Notify by writing an entry onto the 120 * request queue and then the f/w turns around and gives you an acknowledgement 121 * to *your* acknowledgement on the response queue (the idea being to let 122 * the f/w tell you when the event is *really* over I guess). 123 * 124 */ 125 126 127 /* 128 * A new response queue entry has arrived. The interrupt service code 129 * has already swizzled it into the platform dependent from canonical form. 130 * 131 * Because of the way this driver is designed, unfortunately most of the 132 * actual synchronization work has to be done in the platform specific 133 * code- we have no synchroniation primitives in the common code. 134 */ 135 136 int 137 isp_target_notify(struct ispsoftc *isp, void *vptr, u_int16_t *optrp) 138 { 139 u_int16_t status, seqid; 140 union { 141 at_entry_t *atiop; 142 at2_entry_t *at2iop; 143 ct_entry_t *ctiop; 144 ct2_entry_t *ct2iop; 145 lun_entry_t *lunenp; 146 in_entry_t *inotp; 147 in_fcentry_t *inot_fcp; 148 na_entry_t *nackp; 149 na_fcentry_t *nack_fcp; 150 isphdr_t *hp; 151 void * *vp; 152 #define atiop unp.atiop 153 #define at2iop unp.at2iop 154 #define ctiop unp.ctiop 155 #define ct2iop unp.ct2iop 156 #define lunenp unp.lunenp 157 #define inotp unp.inotp 158 #define inot_fcp unp.inot_fcp 159 #define nackp unp.nackp 160 #define nack_fcp unp.nack_fcp 161 #define hdrp unp.hp 162 } unp; 163 int bus, rval = 0; 164 165 unp.vp = vptr; 166 167 ISP_TDQE(isp, "isp_target_notify", (int) *optrp, vptr); 168 169 switch(hdrp->rqs_entry_type) { 170 case RQSTYPE_ATIO: 171 isp_handle_atio(isp, atiop); 172 break; 173 case RQSTYPE_CTIO: 174 isp_handle_ctio(isp, ctiop); 175 break; 176 case RQSTYPE_ATIO2: 177 isp_handle_atio2(isp, at2iop); 178 break; 179 case RQSTYPE_CTIO2: 180 isp_handle_ctio2(isp, ct2iop); 181 break; 182 case RQSTYPE_ENABLE_LUN: 183 case RQSTYPE_MODIFY_LUN: 184 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, vptr); 185 break; 186 187 case RQSTYPE_NOTIFY: 188 /* 189 * Either the ISP received a SCSI message it can't 190 * handle, or it's returning an Immed. Notify entry 191 * we sent. We can send Immed. Notify entries to 192 * increment the firmware's resource count for them 193 * (we set this initially in the Enable Lun entry). 194 */ 195 bus = 0; 196 if (IS_FC(isp)) { 197 status = inot_fcp->in_status; 198 seqid = inot_fcp->in_seqid; 199 } else { 200 status = inotp->in_status & 0xff; 201 seqid = inotp->in_seqid; 202 if (IS_DUALBUS(isp)) { 203 bus = (inotp->in_iid & 0x80) >> 7; 204 inotp->in_iid &= ~0x80; 205 } 206 } 207 isp_prt(isp, ISP_LOGTDEBUG1, 208 "Immediate Notify, status=0x%x seqid=0x%x", status, seqid); 209 switch (status) { 210 case IN_RESET: 211 (void) isp_async(isp, ISPASYNC_BUS_RESET, &bus); 212 break; 213 case IN_MSG_RECEIVED: 214 case IN_IDE_RECEIVED: 215 if (IS_FC(isp)) { 216 isp_got_msg_fc(isp, bus, vptr); 217 } else { 218 isp_got_msg(isp, bus, vptr); 219 } 220 break; 221 case IN_RSRC_UNAVAIL: 222 isp_prt(isp, ISP_LOGWARN, "Firmware out of ATIOs"); 223 break; 224 case IN_ABORT_TASK: 225 isp_prt(isp, ISP_LOGWARN, 226 "Abort Task for Initiator %d RX_ID 0x%x", 227 inot_fcp->in_iid, seqid); 228 break; 229 case IN_PORT_LOGOUT: 230 isp_prt(isp, ISP_LOGWARN, 231 "Port Logout for Initiator %d RX_ID 0x%x", 232 inot_fcp->in_iid, seqid); 233 break; 234 case IN_PORT_CHANGED: 235 isp_prt(isp, ISP_LOGWARN, 236 "Port Changed for Initiator %d RX_ID 0x%x", 237 inot_fcp->in_iid, seqid); 238 break; 239 case IN_GLOBAL_LOGO: 240 isp_prt(isp, ISP_LOGWARN, "All ports logged out"); 241 break; 242 default: 243 isp_prt(isp, ISP_LOGERR, 244 "bad status (0x%x) in isp_target_notify", status); 245 break; 246 } 247 isp_notify_ack(isp, vptr); 248 break; 249 250 case RQSTYPE_NOTIFY_ACK: 251 /* 252 * The ISP is acknowledging our acknowledgement of an 253 * Immediate Notify entry for some asynchronous event. 254 */ 255 if (IS_FC(isp)) { 256 isp_prt(isp, ISP_LOGTDEBUG1, 257 "Notify Ack status=0x%x seqid 0x%x", 258 nack_fcp->na_status, nack_fcp->na_seqid); 259 } else { 260 isp_prt(isp, ISP_LOGTDEBUG1, 261 "Notify Ack event 0x%x status=0x%x seqid 0x%x", 262 nackp->na_event, nackp->na_status, nackp->na_seqid); 263 } 264 break; 265 default: 266 isp_prt(isp, ISP_LOGERR, 267 "Unknown entry type 0x%x in isp_target_notify", 268 hdrp->rqs_entry_type); 269 rval = -1; 270 break; 271 } 272 #undef atiop 273 #undef at2iop 274 #undef ctiop 275 #undef ct2iop 276 #undef lunenp 277 #undef inotp 278 #undef inot_fcp 279 #undef nackp 280 #undef nack_fcp 281 #undef hdrp 282 return (rval); 283 } 284 285 286 /* 287 * Toggle (on/off) target mode for bus/target/lun 288 * 289 * The caller has checked for overlap and legality. 290 * 291 * Note that not all of bus, target or lun can be paid attention to. 292 * Note also that this action will not be complete until the f/w writes 293 * response entry. The caller is responsible for synchronizing this. 294 */ 295 int 296 isp_lun_cmd(struct ispsoftc *isp, int cmd, int bus, int tgt, int lun, 297 int cmd_cnt, int inot_cnt, u_int32_t opaque) 298 { 299 lun_entry_t el; 300 u_int16_t iptr, optr; 301 void *outp; 302 303 304 MEMZERO(&el, sizeof (el)); 305 if (IS_DUALBUS(isp)) { 306 el.le_rsvd = (bus & 0x1) << 7; 307 } 308 el.le_cmd_count = cmd_cnt; 309 el.le_in_count = inot_cnt; 310 if (cmd == RQSTYPE_ENABLE_LUN) { 311 if (IS_SCSI(isp)) { 312 el.le_flags = LUN_TQAE|LUN_DISAD; 313 el.le_cdb6len = 12; 314 el.le_cdb7len = 12; 315 } 316 } else if (cmd == -RQSTYPE_ENABLE_LUN) { 317 cmd = RQSTYPE_ENABLE_LUN; 318 el.le_cmd_count = 0; 319 el.le_in_count = 0; 320 } else if (cmd == -RQSTYPE_MODIFY_LUN) { 321 cmd = RQSTYPE_MODIFY_LUN; 322 el.le_ops = LUN_CCDECR | LUN_INDECR; 323 } else { 324 el.le_ops = LUN_CCINCR | LUN_ININCR; 325 } 326 el.le_header.rqs_entry_type = cmd; 327 el.le_header.rqs_entry_count = 1; 328 el.le_reserved = opaque; 329 if (IS_SCSI(isp)) { 330 el.le_tgt = tgt; 331 el.le_lun = lun; 332 } else if (isp->isp_maxluns <= 16) { 333 el.le_lun = lun; 334 } 335 el.le_timeout = 2; 336 337 if (isp_getrqentry(isp, &iptr, &optr, &outp)) { 338 isp_prt(isp, ISP_LOGWARN, 339 "Request Queue Overflow in isp_lun_cmd"); 340 return (-1); 341 } 342 ISP_SWIZ_ENABLE_LUN(isp, outp, &el); 343 ISP_TDQE(isp, "isp_lun_cmd", (int) optr, &el); 344 ISP_ADD_REQUEST(isp, iptr); 345 return (0); 346 } 347 348 349 int 350 isp_target_put_entry(struct ispsoftc *isp, void *ap) 351 { 352 void *outp; 353 u_int16_t iptr, optr; 354 u_int8_t etype = ((isphdr_t *) ap)->rqs_entry_type; 355 356 if (isp_getrqentry(isp, &iptr, &optr, &outp)) { 357 isp_prt(isp, ISP_LOGWARN, 358 "Request Queue Overflow in isp_target_put_entry"); 359 return (-1); 360 } 361 switch (etype) { 362 case RQSTYPE_ATIO: 363 ISP_SWIZ_ATIO(isp, outp, ap); 364 break; 365 case RQSTYPE_ATIO2: 366 ISP_SWIZ_ATIO2(isp, outp, ap); 367 break; 368 case RQSTYPE_CTIO: 369 ISP_SWIZ_CTIO(isp, outp, ap); 370 break; 371 case RQSTYPE_CTIO2: 372 ISP_SWIZ_CTIO2(isp, outp, ap); 373 break; 374 default: 375 isp_prt(isp, ISP_LOGERR, 376 "Unknown type 0x%x in isp_put_entry", etype); 377 return (-1); 378 } 379 380 ISP_TDQE(isp, "isp_target_put_entry", (int) optr, ap);; 381 382 ISP_ADD_REQUEST(isp, iptr); 383 return (0); 384 } 385 386 int 387 isp_target_put_atio(struct ispsoftc *isp, void *arg) 388 { 389 union { 390 at_entry_t _atio; 391 at2_entry_t _atio2; 392 } atun; 393 394 MEMZERO(&atun, sizeof atun); 395 if (IS_FC(isp)) { 396 at2_entry_t *aep = arg; 397 atun._atio2.at_header.rqs_entry_type = RQSTYPE_ATIO2; 398 atun._atio2.at_header.rqs_entry_count = 1; 399 if (isp->isp_maxluns > 16) { 400 atun._atio2.at_scclun = (u_int16_t) aep->at_scclun; 401 } else { 402 atun._atio2.at_lun = (u_int8_t) aep->at_scclun; 403 } 404 atun._atio2.at_status = CT_OK; 405 } else { 406 at_entry_t *aep = arg; 407 atun._atio.at_header.rqs_entry_type = RQSTYPE_ATIO; 408 atun._atio.at_header.rqs_entry_count = 1; 409 atun._atio.at_handle = aep->at_handle; 410 atun._atio.at_iid = aep->at_iid; 411 atun._atio.at_tgt = aep->at_tgt; 412 atun._atio.at_lun = aep->at_lun; 413 atun._atio.at_tag_type = aep->at_tag_type; 414 atun._atio.at_tag_val = aep->at_tag_val; 415 atun._atio.at_status = (aep->at_flags & AT_TQAE); 416 atun._atio.at_status |= CT_OK; 417 } 418 return (isp_target_put_entry(isp, &atun)); 419 } 420 421 /* 422 * Command completion- both for handling cases of no resources or 423 * no blackhole driver, or other cases where we have to, inline, 424 * finish the command sanely, or for normal command completion. 425 * 426 * The 'completion' code value has the scsi status byte in the low 8 bits. 427 * If status is a CHECK CONDITION and bit 8 is nonzero, then bits 12..15 have 428 * the sense key and bits 16..23 have the ASCQ and bits 24..31 have the ASC 429 * values. 430 * 431 * NB: the key, asc, ascq, cannot be used for parallel SCSI as it doesn't 432 * NB: inline SCSI sense reporting. As such, we lose this information. XXX. 433 * 434 * For both parallel && fibre channel, we use the feature that does 435 * an automatic resource autoreplenish so we don't have then later do 436 * put of an atio to replenish the f/w's resource count. 437 */ 438 439 int 440 isp_endcmd(struct ispsoftc *isp, void *arg, u_int32_t code, u_int16_t hdl) 441 { 442 int sts; 443 union { 444 ct_entry_t _ctio; 445 ct2_entry_t _ctio2; 446 } un; 447 448 MEMZERO(&un, sizeof un); 449 sts = code & 0xff; 450 451 if (IS_FC(isp)) { 452 at2_entry_t *aep = arg; 453 ct2_entry_t *cto = &un._ctio2; 454 455 cto->ct_header.rqs_entry_type = RQSTYPE_CTIO2; 456 cto->ct_header.rqs_entry_count = 1; 457 cto->ct_iid = aep->at_iid; 458 if (isp->isp_maxluns <= 16) { 459 cto->ct_lun = aep->at_lun; 460 } 461 cto->ct_rxid = aep->at_rxid; 462 cto->rsp.m1.ct_scsi_status = sts & 0xff; 463 cto->ct_flags = CT2_SENDSTATUS | CT2_NO_DATA | CT2_FLAG_MODE1; 464 if (hdl == 0) { 465 cto->ct_flags |= CT2_CCINCR; 466 } 467 if (aep->at_datalen) { 468 cto->ct_resid = aep->at_datalen; 469 cto->rsp.m1.ct_scsi_status |= CT2_DATA_UNDER; 470 } 471 if ((sts & 0xff) == SCSI_CHECK && (sts & ECMD_SVALID)) { 472 cto->rsp.m1.ct_resp[0] = 0xf0; 473 cto->rsp.m1.ct_resp[2] = (code >> 12) & 0xf; 474 cto->rsp.m1.ct_resp[7] = 8; 475 cto->rsp.m1.ct_resp[12] = (code >> 24) & 0xff; 476 cto->rsp.m1.ct_resp[13] = (code >> 16) & 0xff; 477 cto->rsp.m1.ct_senselen = 16; 478 cto->rsp.m1.ct_scsi_status |= CT2_SNSLEN_VALID; 479 } 480 cto->ct_syshandle = hdl; 481 } else { 482 at_entry_t *aep = arg; 483 ct_entry_t *cto = &un._ctio; 484 485 cto->ct_header.rqs_entry_type = RQSTYPE_CTIO; 486 cto->ct_header.rqs_entry_count = 1; 487 cto->ct_fwhandle = aep->at_handle; 488 cto->ct_iid = aep->at_iid; 489 cto->ct_tgt = aep->at_tgt; 490 cto->ct_lun = aep->at_lun; 491 cto->ct_tag_type = aep->at_tag_type; 492 cto->ct_tag_val = aep->at_tag_val; 493 if (aep->at_flags & AT_TQAE) { 494 cto->ct_flags |= CT_TQAE; 495 } 496 cto->ct_flags = CT_SENDSTATUS | CT_NO_DATA; 497 if (hdl == 0) { 498 cto->ct_flags |= CT_CCINCR; 499 } 500 cto->ct_scsi_status = sts; 501 cto->ct_syshandle = hdl; 502 } 503 return (isp_target_put_entry(isp, &un)); 504 } 505 506 void 507 isp_target_async(struct ispsoftc *isp, int bus, int event) 508 { 509 tmd_event_t evt; 510 tmd_msg_t msg; 511 512 switch (event) { 513 /* 514 * These three we handle here to propagate an effective bus reset 515 * upstream, but these do not require any immediate notify actions 516 * so we return when done. 517 */ 518 case ASYNC_LIP_OCCURRED: 519 case ASYNC_LOOP_UP: 520 case ASYNC_LOOP_DOWN: 521 evt.ev_bus = bus; 522 evt.ev_event = event; 523 (void) isp_async(isp, ISPASYNC_TARGET_EVENT, &evt); 524 return; 525 526 case ASYNC_LOOP_RESET: 527 case ASYNC_BUS_RESET: 528 case ASYNC_TIMEOUT_RESET: 529 if (IS_FC(isp)) { 530 return; /* we'll be getting an inotify instead */ 531 } 532 evt.ev_bus = bus; 533 evt.ev_event = event; 534 (void) isp_async(isp, ISPASYNC_TARGET_EVENT, &evt); 535 break; 536 case ASYNC_DEVICE_RESET: 537 /* 538 * Bus Device Reset resets a specific target, so 539 * we pass this as a synthesized message. 540 */ 541 MEMZERO(&msg, sizeof msg); 542 if (IS_FC(isp)) { 543 msg.nt_iid = FCPARAM(isp)->isp_loopid; 544 } else { 545 msg.nt_iid = SDPARAM(isp)->isp_initiator_id; 546 } 547 msg.nt_bus = bus; 548 msg.nt_msg[0] = MSG_BUS_DEV_RESET; 549 (void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg); 550 break; 551 default: 552 isp_prt(isp, ISP_LOGERR, 553 "isp_target_async: unknown event 0x%x", event); 554 break; 555 } 556 if (isp->isp_state == ISP_RUNSTATE) 557 isp_notify_ack(isp, NULL); 558 } 559 560 561 /* 562 * Process a received message. 563 * The ISP firmware can handle most messages, there are only 564 * a few that we need to deal with: 565 * - abort: clean up the current command 566 * - abort tag and clear queue 567 */ 568 569 static void 570 isp_got_msg(struct ispsoftc *isp, int bus, in_entry_t *inp) 571 { 572 u_int8_t status = inp->in_status & ~QLTM_SVALID; 573 574 if (status == IN_IDE_RECEIVED || status == IN_MSG_RECEIVED) { 575 tmd_msg_t msg; 576 577 MEMZERO(&msg, sizeof (msg)); 578 msg.nt_bus = bus; 579 msg.nt_iid = inp->in_iid; 580 msg.nt_tgt = inp->in_tgt; 581 msg.nt_lun = inp->in_lun; 582 msg.nt_tagtype = inp->in_tag_type; 583 msg.nt_tagval = inp->in_tag_val; 584 MEMCPY(msg.nt_msg, inp->in_msg, IN_MSGLEN); 585 (void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg); 586 } else { 587 isp_prt(isp, ISP_LOGERR, 588 "unknown immediate notify status 0x%x", inp->in_status); 589 } 590 } 591 592 /* 593 * Synthesize a message from the task management flags in a FCP_CMND_IU. 594 */ 595 static void 596 isp_got_msg_fc(struct ispsoftc *isp, int bus, in_fcentry_t *inp) 597 { 598 static const char f1[] = "%s from iid %d lun %d seq 0x%x"; 599 static const char f2[] = 600 "unknown %s 0x%x lun %d iid %d task flags 0x%x seq 0x%x\n"; 601 602 if (inp->in_status != IN_MSG_RECEIVED) { 603 isp_prt(isp, ISP_LOGINFO, f2, "immediate notify status", 604 inp->in_status, inp->in_lun, inp->in_iid, 605 inp->in_task_flags, inp->in_seqid); 606 } else { 607 tmd_msg_t msg; 608 609 MEMZERO(&msg, sizeof (msg)); 610 msg.nt_bus = bus; 611 msg.nt_iid = inp->in_iid; 612 if (isp->isp_maxluns > 16) { 613 msg.nt_lun = inp->in_scclun; 614 } else { 615 msg.nt_lun = inp->in_lun; 616 } 617 msg.nt_tagval = inp->in_seqid; 618 619 if (inp->in_task_flags & TASK_FLAGS_ABORT_TASK) { 620 isp_prt(isp, ISP_LOGINFO, f1, "ABORT TASK", 621 inp->in_iid, inp->in_lun, inp->in_seqid); 622 msg.nt_msg[0] = MSG_ABORT_TAG; 623 } else if (inp->in_task_flags & TASK_FLAGS_CLEAR_TASK_SET) { 624 isp_prt(isp, ISP_LOGINFO, f1, "CLEAR TASK SET", 625 inp->in_iid, inp->in_lun, inp->in_seqid); 626 msg.nt_msg[0] = MSG_CLEAR_QUEUE; 627 } else if (inp->in_task_flags & TASK_FLAGS_TARGET_RESET) { 628 isp_prt(isp, ISP_LOGINFO, f1, "TARGET RESET", 629 inp->in_iid, inp->in_lun, inp->in_seqid); 630 msg.nt_msg[0] = MSG_BUS_DEV_RESET; 631 } else if (inp->in_task_flags & TASK_FLAGS_CLEAR_ACA) { 632 isp_prt(isp, ISP_LOGINFO, f1, "CLEAR ACA", 633 inp->in_iid, inp->in_lun, inp->in_seqid); 634 /* ???? */ 635 msg.nt_msg[0] = MSG_REL_RECOVERY; 636 } else if (inp->in_task_flags & TASK_FLAGS_TERMINATE_TASK) { 637 isp_prt(isp, ISP_LOGINFO, f1, "TERMINATE TASK", 638 inp->in_iid, inp->in_lun, inp->in_seqid); 639 msg.nt_msg[0] = MSG_TERM_IO_PROC; 640 } else { 641 isp_prt(isp, ISP_LOGWARN, f2, "task flag", 642 inp->in_status, inp->in_lun, inp->in_iid, 643 inp->in_task_flags, inp->in_seqid); 644 } 645 if (msg.nt_msg[0]) { 646 (void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg); 647 } 648 } 649 } 650 651 static void 652 isp_notify_ack(struct ispsoftc *isp, void *arg) 653 { 654 char storage[QENTRY_LEN]; 655 u_int16_t iptr, optr; 656 void *outp; 657 658 if (isp_getrqentry(isp, &iptr, &optr, &outp)) { 659 isp_prt(isp, ISP_LOGWARN, 660 "Request Queue Overflow For isp_notify_ack"); 661 return; 662 } 663 664 MEMZERO(storage, QENTRY_LEN); 665 666 if (IS_FC(isp)) { 667 na_fcentry_t *na = (na_fcentry_t *) storage; 668 if (arg) { 669 in_fcentry_t *inp = arg; 670 MEMCPY(storage, arg, sizeof (isphdr_t)); 671 na->na_iid = inp->in_iid; 672 if (isp->isp_maxluns > 16) { 673 na->na_lun = inp->in_scclun; 674 } else { 675 na->na_lun = inp->in_lun; 676 } 677 na->na_task_flags = inp->in_task_flags; 678 na->na_seqid = inp->in_seqid; 679 na->na_flags = NAFC_RCOUNT; 680 if (inp->in_status == IN_RESET) { 681 na->na_flags |= NAFC_RST_CLRD; 682 } 683 } else { 684 na->na_flags = NAFC_RST_CLRD; 685 } 686 na->na_header.rqs_entry_type = RQSTYPE_NOTIFY_ACK; 687 na->na_header.rqs_entry_count = 1; 688 ISP_SWIZ_NOT_ACK_FC(isp, outp, na); 689 } else { 690 na_entry_t *na = (na_entry_t *) storage; 691 if (arg) { 692 in_entry_t *inp = arg; 693 MEMCPY(storage, arg, sizeof (isphdr_t)); 694 na->na_iid = inp->in_iid; 695 na->na_lun = inp->in_lun; 696 na->na_tgt = inp->in_tgt; 697 na->na_seqid = inp->in_seqid; 698 if (inp->in_status == IN_RESET) { 699 na->na_event = NA_RST_CLRD; 700 } 701 } else { 702 na->na_event = NA_RST_CLRD; 703 } 704 na->na_header.rqs_entry_type = RQSTYPE_NOTIFY_ACK; 705 na->na_header.rqs_entry_count = 1; 706 ISP_SWIZ_NOT_ACK(isp, outp, na); 707 } 708 ISP_TDQE(isp, "isp_notify_ack", (int) optr, storage); 709 ISP_ADD_REQUEST(isp, iptr); 710 } 711 712 static void 713 isp_handle_atio(struct ispsoftc *isp, at_entry_t *aep) 714 { 715 int lun; 716 lun = aep->at_lun; 717 /* 718 * The firmware status (except for the QLTM_SVALID bit) indicates 719 * why this ATIO was sent to us. 720 * 721 * If QLTM_SVALID is set, the firware has recommended Sense Data. 722 * 723 * If the DISCONNECTS DISABLED bit is set in the flags field, 724 * we're still connected on the SCSI bus - i.e. the initiator 725 * did not set DiscPriv in the identify message. We don't care 726 * about this so it's ignored. 727 */ 728 729 switch(aep->at_status & ~QLTM_SVALID) { 730 case AT_PATH_INVALID: 731 /* 732 * ATIO rejected by the firmware due to disabled lun. 733 */ 734 isp_prt(isp, ISP_LOGERR, 735 "rejected ATIO for disabled lun %d", lun); 736 break; 737 case AT_NOCAP: 738 /* 739 * Requested Capability not available 740 * We sent an ATIO that overflowed the firmware's 741 * command resource count. 742 */ 743 isp_prt(isp, ISP_LOGERR, 744 "rejected ATIO for lun %d because of command count" 745 " overflow", lun); 746 break; 747 748 case AT_BDR_MSG: 749 /* 750 * If we send an ATIO to the firmware to increment 751 * its command resource count, and the firmware is 752 * recovering from a Bus Device Reset, it returns 753 * the ATIO with this status. We set the command 754 * resource count in the Enable Lun entry and no 755 * not increment it. Therefore we should never get 756 * this status here. 757 */ 758 isp_prt(isp, ISP_LOGERR, atiocope, lun); 759 break; 760 761 case AT_CDB: /* Got a CDB */ 762 case AT_PHASE_ERROR: /* Bus Phase Sequence Error */ 763 /* 764 * Punt to platform specific layer. 765 */ 766 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, aep); 767 break; 768 769 case AT_RESET: 770 /* 771 * A bus reset came along an blew away this command. Why 772 * they do this in addition the async event code stuff, 773 * I dunno. 774 * 775 * Ignore it because the async event will clear things 776 * up for us. 777 */ 778 isp_prt(isp, ISP_LOGWARN, atior, lun, aep->at_iid); 779 break; 780 781 782 default: 783 isp_prt(isp, ISP_LOGERR, 784 "Unknown ATIO status 0x%x from initiator %d for lun %d", 785 aep->at_status, aep->at_iid, lun); 786 (void) isp_target_put_atio(isp, aep); 787 break; 788 } 789 } 790 791 static void 792 isp_handle_atio2(struct ispsoftc *isp, 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); 870 break; 871 } 872 } 873 874 static void 875 isp_handle_ctio(struct ispsoftc *isp, ct_entry_t *ct) 876 { 877 void *xs; 878 int pl = ISP_LOGTDEBUG2; 879 char *fmsg = NULL; 880 881 if (ct->ct_syshandle) { 882 xs = isp_find_xs(isp, ct->ct_syshandle); 883 if (xs == NULL) 884 pl = ISP_LOGALL; 885 } else { 886 xs = NULL; 887 } 888 889 switch(ct->ct_status & ~QLTM_SVALID) { 890 case CT_OK: 891 /* 892 * There are generally 3 possibilities as to why we'd get 893 * this condition: 894 * We disconnected after receiving a CDB. 895 * We sent or received data. 896 * We sent status & command complete. 897 */ 898 899 if (ct->ct_flags & CT_SENDSTATUS) { 900 break; 901 } else if ((ct->ct_flags & CT_DATAMASK) == CT_NO_DATA) { 902 /* 903 * Nothing to do in this case. 904 */ 905 isp_prt(isp, pl, "CTIO- iid %d disconnected OK", 906 ct->ct_iid); 907 return; 908 } 909 break; 910 911 case CT_BDR_MSG: 912 /* 913 * Bus Device Reset message received or the SCSI Bus has 914 * been Reset; the firmware has gone to Bus Free. 915 * 916 * The firmware generates an async mailbox interupt to 917 * notify us of this and returns outstanding CTIOs with this 918 * status. These CTIOs are handled in that same way as 919 * CT_ABORTED ones, so just fall through here. 920 */ 921 fmsg = "Bus Device Reset"; 922 /*FALLTHROUGH*/ 923 case CT_RESET: 924 if (fmsg == NULL) 925 fmsg = "Bus Reset"; 926 /*FALLTHROUGH*/ 927 case CT_ABORTED: 928 /* 929 * When an Abort message is received the firmware goes to 930 * Bus Free and returns all outstanding CTIOs with the status 931 * set, then sends us an Immediate Notify entry. 932 */ 933 if (fmsg == NULL) 934 fmsg = "ABORT TASK sent by Initiator"; 935 936 isp_prt(isp, ISP_LOGWARN, "CTIO destroyed by %s", fmsg); 937 break; 938 939 case CT_INVAL: 940 /* 941 * CTIO rejected by the firmware due to disabled lun. 942 * "Cannot Happen". 943 */ 944 isp_prt(isp, ISP_LOGERR, 945 "Firmware rejected CTIO for disabled lun %d", 946 ct->ct_lun); 947 break; 948 949 case CT_NOPATH: 950 /* 951 * CTIO rejected by the firmware due "no path for the 952 * nondisconnecting nexus specified". This means that 953 * we tried to access the bus while a non-disconnecting 954 * command is in process. 955 */ 956 isp_prt(isp, ISP_LOGERR, 957 "Firmware rejected CTIO for bad nexus %d/%d/%d", 958 ct->ct_iid, ct->ct_tgt, ct->ct_lun); 959 break; 960 961 case CT_RSELTMO: 962 fmsg = "Reselection"; 963 /*FALLTHROUGH*/ 964 case CT_TIMEOUT: 965 if (fmsg == NULL) 966 fmsg = "Command"; 967 isp_prt(isp, ISP_LOGERR, "Firmware timed out on %s", fmsg); 968 break; 969 970 case CT_PANIC: 971 if (fmsg == NULL) 972 fmsg = "Unrecoverable Error"; 973 /*FALLTHROUGH*/ 974 case CT_ERR: 975 if (fmsg == NULL) 976 fmsg = "Completed with Error"; 977 /*FALLTHROUGH*/ 978 case CT_PHASE_ERROR: 979 if (fmsg == NULL) 980 fmsg = "Phase Sequence Error"; 981 /*FALLTHROUGH*/ 982 case CT_TERMINATED: 983 if (fmsg == NULL) 984 fmsg = "terminated by TERMINATE TRANSFER"; 985 /*FALLTHROUGH*/ 986 case CT_NOACK: 987 if (fmsg == NULL) 988 fmsg = "unacknowledged Immediate Notify pending"; 989 isp_prt(isp, ISP_LOGERR, "CTIO returned by f/w- %s", fmsg); 990 break; 991 default: 992 isp_prt(isp, ISP_LOGERR, "Unknown CTIO status 0x%x", 993 ct->ct_status & ~QLTM_SVALID); 994 break; 995 } 996 997 if (xs == NULL) { 998 /* 999 * There may be more than one CTIO for a data transfer, 1000 * or this may be a status CTIO we're not monitoring. 1001 * 1002 * The assumption is that they'll all be returned in the 1003 * order we got them. 1004 */ 1005 if (ct->ct_syshandle == 0) { 1006 if ((ct->ct_flags & CT_SENDSTATUS) == 0) { 1007 isp_prt(isp, pl, 1008 "intermediate CTIO completed ok"); 1009 } else { 1010 isp_prt(isp, pl, 1011 "unmonitored CTIO completed ok"); 1012 } 1013 } else { 1014 isp_prt(isp, pl, 1015 "NO xs for CTIO (handle 0x%x) status 0x%x", 1016 ct->ct_syshandle, ct->ct_status & ~QLTM_SVALID); 1017 } 1018 } else { 1019 /* 1020 * Final CTIO completed. Release DMA resources and 1021 * notify platform dependent layers. 1022 */ 1023 if ((ct->ct_flags & CT_DATAMASK) != CT_NO_DATA) { 1024 ISP_DMAFREE(isp, xs, ct->ct_syshandle); 1025 } 1026 isp_prt(isp, pl, "final CTIO complete"); 1027 /* 1028 * The platform layer will destroy the handle if appropriate. 1029 */ 1030 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, ct); 1031 } 1032 } 1033 1034 static void 1035 isp_handle_ctio2(struct ispsoftc *isp, ct2_entry_t *ct) 1036 { 1037 XS_T *xs; 1038 int pl = ISP_LOGTDEBUG2; 1039 char *fmsg = NULL; 1040 1041 if (ct->ct_syshandle) { 1042 xs = isp_find_xs(isp, ct->ct_syshandle); 1043 if (xs == NULL) 1044 pl = ISP_LOGALL; 1045 } else { 1046 xs = NULL; 1047 } 1048 1049 switch(ct->ct_status & ~QLTM_SVALID) { 1050 case CT_BUS_ERROR: 1051 isp_prt(isp, ISP_LOGERR, "PCI DMA Bus Error"); 1052 /* FALL Through */ 1053 case CT_DATA_OVER: 1054 case CT_DATA_UNDER: 1055 case CT_OK: 1056 /* 1057 * There are generally 2 possibilities as to why we'd get 1058 * this condition: 1059 * We sent or received data. 1060 * We sent status & command complete. 1061 */ 1062 1063 break; 1064 1065 case CT_BDR_MSG: 1066 /* 1067 * Target Reset function received. 1068 * 1069 * The firmware generates an async mailbox interupt to 1070 * notify us of this and returns outstanding CTIOs with this 1071 * status. These CTIOs are handled in that same way as 1072 * CT_ABORTED ones, so just fall through here. 1073 */ 1074 fmsg = "TARGET RESET Task Management Function Received"; 1075 /*FALLTHROUGH*/ 1076 case CT_RESET: 1077 if (fmsg == NULL) 1078 fmsg = "LIP Reset"; 1079 /*FALLTHROUGH*/ 1080 case CT_ABORTED: 1081 /* 1082 * When an Abort message is received the firmware goes to 1083 * Bus Free and returns all outstanding CTIOs with the status 1084 * set, then sends us an Immediate Notify entry. 1085 */ 1086 if (fmsg == NULL) 1087 fmsg = "ABORT Task Management Function Received"; 1088 1089 isp_prt(isp, ISP_LOGERR, "CTIO2 destroyed by %s", fmsg); 1090 break; 1091 1092 case CT_INVAL: 1093 /* 1094 * CTIO rejected by the firmware - invalid data direction. 1095 */ 1096 isp_prt(isp, ISP_LOGERR, "CTIO2 had wrong data directiond"); 1097 break; 1098 1099 case CT_RSELTMO: 1100 fmsg = "failure to reconnect to initiator"; 1101 /*FALLTHROUGH*/ 1102 case CT_TIMEOUT: 1103 if (fmsg == NULL) 1104 fmsg = "command"; 1105 isp_prt(isp, ISP_LOGERR, "Firmware timed out on %s", fmsg); 1106 break; 1107 1108 case CT_ERR: 1109 fmsg = "Completed with Error"; 1110 /*FALLTHROUGH*/ 1111 case CT_LOGOUT: 1112 if (fmsg == NULL) 1113 fmsg = "Port Logout"; 1114 /*FALLTHROUGH*/ 1115 case CT_PORTNOTAVAIL: 1116 if (fmsg == NULL) 1117 fmsg = "Port not available"; 1118 case CT_PORTCHANGED: 1119 if (fmsg == NULL) 1120 fmsg = "Port Changed"; 1121 case CT_NOACK: 1122 if (fmsg == NULL) 1123 fmsg = "unacknowledged Immediate Notify pending"; 1124 isp_prt(isp, ISP_LOGERR, "CTIO returned by f/w- %s", fmsg); 1125 break; 1126 1127 case CT_INVRXID: 1128 /* 1129 * CTIO rejected by the firmware because an invalid RX_ID. 1130 * Just print a message. 1131 */ 1132 isp_prt(isp, ISP_LOGERR, 1133 "CTIO2 completed with Invalid RX_ID 0x%x", ct->ct_rxid); 1134 break; 1135 1136 default: 1137 isp_prt(isp, ISP_LOGERR, "Unknown CTIO2 status 0x%x", 1138 ct->ct_status & ~QLTM_SVALID); 1139 break; 1140 } 1141 1142 if (xs == NULL) { 1143 /* 1144 * There may be more than one CTIO for a data transfer, 1145 * or this may be a status CTIO we're not monitoring. 1146 * 1147 * The assumption is that they'll all be returned in the 1148 * order we got them. 1149 */ 1150 if (ct->ct_syshandle == 0) { 1151 if ((ct->ct_flags & CT_SENDSTATUS) == 0) { 1152 isp_prt(isp, pl, 1153 "intermediate CTIO completed ok"); 1154 } else { 1155 isp_prt(isp, pl, 1156 "unmonitored CTIO completed ok"); 1157 } 1158 } else { 1159 isp_prt(isp, pl, 1160 "NO xs for CTIO (handle 0x%x) status 0x%x", 1161 ct->ct_syshandle, ct->ct_status & ~QLTM_SVALID); 1162 } 1163 } else { 1164 if ((ct->ct_flags & CT2_DATAMASK) != CT2_NO_DATA) { 1165 ISP_DMAFREE(isp, xs, ct->ct_syshandle); 1166 } 1167 if (ct->ct_flags & CT_SENDSTATUS) { 1168 /* 1169 * Sent status and command complete. 1170 * 1171 * We're now really done with this command, so we 1172 * punt to the platform dependent layers because 1173 * only there can we do the appropriate command 1174 * complete thread synchronization. 1175 */ 1176 isp_prt(isp, pl, "status CTIO complete"); 1177 } else { 1178 /* 1179 * Final CTIO completed. Release DMA resources and 1180 * notify platform dependent layers. 1181 */ 1182 isp_prt(isp, pl, "data CTIO complete"); 1183 } 1184 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, ct); 1185 /* 1186 * The platform layer will destroy the handle if appropriate. 1187 */ 1188 } 1189 } 1190 #endif 1191
Indexes created Fri Sep 26 08:10:20 GMT 2025