isp_target.c revision 1.18
1 /* $NetBSD: isp_target.c,v 1.18 2002/02/21 22:32:42 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 * Bug fixes gratefully acknowledged from: 61 * Oded Kedem <oded (at) kashya.com> 62 */ 63 /* 64 * Include header file appropriate for platform we're building on. 65 */ 66 67 #include <sys/cdefs.h> 68 __KERNEL_RCSID(0, "$NetBSD: isp_target.c,v 1.18 2002/02/21 22:32:42 mjacob Exp $"); 69 70 #ifdef __NetBSD__ 71 #include <dev/ic/isp_netbsd.h> 72 #endif 73 #ifdef __FreeBSD__ 74 #include <dev/isp/isp_freebsd.h> 75 #endif 76 #ifdef __OpenBSD__ 77 #include <dev/ic/isp_openbsd.h> 78 #endif 79 #ifdef __linux__ 80 #include "isp_linux.h" 81 #endif 82 83 #ifdef ISP_TARGET_MODE 84 static const char atiocope[] = 85 "ATIO returned for lun %d because it was in the middle of Bus Device Reset " 86 "on bus %d"; 87 static const char atior[] = 88 "ATIO returned on for lun %d on from IID %d because a Bus Reset occurred " 89 "on bus %d"; 90 91 static void isp_got_msg(struct ispsoftc *, int, in_entry_t *); 92 static void isp_got_msg_fc(struct ispsoftc *, int, in_fcentry_t *); 93 static void isp_notify_ack(struct ispsoftc *, void *); 94 static void isp_handle_atio(struct ispsoftc *, at_entry_t *); 95 static void isp_handle_atio2(struct ispsoftc *, at2_entry_t *); 96 static void isp_handle_ctio(struct ispsoftc *, ct_entry_t *); 97 static void isp_handle_ctio2(struct ispsoftc *, ct2_entry_t *); 98 99 /* 100 * The Qlogic driver gets an interrupt to look at response queue entries. 101 * Some of these are status completions for initiatior mode commands, but 102 * if target mode is enabled, we get a whole wad of response queue entries 103 * to be handled here. 104 * 105 * Basically the split into 3 main groups: Lun Enable/Modification responses, 106 * SCSI Command processing, and Immediate Notification events. 107 * 108 * You start by writing a request queue entry to enable target mode (and 109 * establish some resource limitations which you can modify later). 110 * The f/w responds with a LUN ENABLE or LUN MODIFY response with 111 * the status of this action. If the enable was successful, you can expect... 112 * 113 * Response queue entries with SCSI commands encapsulate show up in an ATIO 114 * (Accept Target IO) type- sometimes with enough info to stop the command at 115 * this level. Ultimately the driver has to feed back to the f/w's request 116 * queue a sequence of CTIOs (continue target I/O) that describe data to 117 * be moved and/or status to be sent) and finally finishing with sending 118 * to the f/w's response queue an ATIO which then completes the handshake 119 * with the f/w for that command. There's a lot of variations on this theme, 120 * including flags you can set in the CTIO for the Qlogic 2X00 fibre channel 121 * cards that 'auto-replenish' the f/w's ATIO count, but this is the basic 122 * gist of it. 123 * 124 * The third group that can show up in the response queue are Immediate 125 * Notification events. These include things like notifications of SCSI bus 126 * resets, or Bus Device Reset messages or other messages received. This 127 * a classic oddbins area. It can get a little weird because you then turn 128 * around and acknowledge the Immediate Notify by writing an entry onto the 129 * request queue and then the f/w turns around and gives you an acknowledgement 130 * to *your* acknowledgement on the response queue (the idea being to let 131 * the f/w tell you when the event is *really* over I guess). 132 * 133 */ 134 135 136 /* 137 * A new response queue entry has arrived. The interrupt service code 138 * has already swizzled it into the platform dependent from canonical form. 139 * 140 * Because of the way this driver is designed, unfortunately most of the 141 * actual synchronization work has to be done in the platform specific 142 * code- we have no synchroniation primitives in the common code. 143 */ 144 145 int 146 isp_target_notify(struct ispsoftc *isp, void *vptr, u_int16_t *optrp) 147 { 148 u_int16_t status, seqid; 149 union { 150 at_entry_t *atiop; 151 at2_entry_t *at2iop; 152 ct_entry_t *ctiop; 153 ct2_entry_t *ct2iop; 154 lun_entry_t *lunenp; 155 in_entry_t *inotp; 156 in_fcentry_t *inot_fcp; 157 na_entry_t *nackp; 158 na_fcentry_t *nack_fcp; 159 isphdr_t *hp; 160 void * *vp; 161 #define atiop unp.atiop 162 #define at2iop unp.at2iop 163 #define ctiop unp.ctiop 164 #define ct2iop unp.ct2iop 165 #define lunenp unp.lunenp 166 #define inotp unp.inotp 167 #define inot_fcp unp.inot_fcp 168 #define nackp unp.nackp 169 #define nack_fcp unp.nack_fcp 170 #define hdrp unp.hp 171 } unp; 172 u_int8_t local[QENTRY_LEN]; 173 int bus, type, rval = 0; 174 175 type = isp_get_response_type(isp, (isphdr_t *)vptr); 176 unp.vp = vptr; 177 178 ISP_TDQE(isp, "isp_target_notify", (int) *optrp, vptr); 179 180 switch(type) { 181 case RQSTYPE_ATIO: 182 isp_get_atio(isp, atiop, (at_entry_t *) local); 183 isp_handle_atio(isp, (at_entry_t *) local); 184 break; 185 case RQSTYPE_CTIO: 186 isp_get_ctio(isp, ctiop, (ct_entry_t *) local); 187 isp_handle_ctio(isp, (ct_entry_t *) local); 188 break; 189 case RQSTYPE_ATIO2: 190 isp_get_atio2(isp, at2iop, (at2_entry_t *) local); 191 isp_handle_atio2(isp, (at2_entry_t *) local); 192 break; 193 case RQSTYPE_CTIO2: 194 isp_get_ctio2(isp, ct2iop, (ct2_entry_t *) local); 195 isp_handle_ctio2(isp, (ct2_entry_t *) local); 196 break; 197 case RQSTYPE_ENABLE_LUN: 198 case RQSTYPE_MODIFY_LUN: 199 isp_get_enable_lun(isp, lunenp, (lun_entry_t *) local); 200 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, local); 201 break; 202 203 case RQSTYPE_NOTIFY: 204 /* 205 * Either the ISP received a SCSI message it can't 206 * handle, or it's returning an Immed. Notify entry 207 * we sent. We can send Immed. Notify entries to 208 * increment the firmware's resource count for them 209 * (we set this initially in the Enable Lun entry). 210 */ 211 bus = 0; 212 if (IS_FC(isp)) { 213 isp_get_notify_fc(isp, inot_fcp, (in_fcentry_t *)local); 214 inot_fcp = (in_fcentry_t *) local; 215 status = inot_fcp->in_status; 216 seqid = inot_fcp->in_seqid; 217 } else { 218 isp_get_notify(isp, inotp, (in_entry_t *)local); 219 inotp = (in_entry_t *) local; 220 status = inotp->in_status & 0xff; 221 seqid = inotp->in_seqid; 222 if (IS_DUALBUS(isp)) { 223 bus = GET_BUS_VAL(inotp->in_iid); 224 SET_BUS_VAL(inotp->in_iid, 0); 225 } 226 } 227 isp_prt(isp, ISP_LOGTDEBUG0, 228 "Immediate Notify On Bus %d, status=0x%x seqid=0x%x", 229 bus, status, seqid); 230 231 /* 232 * ACK it right away. 233 */ 234 isp_notify_ack(isp, (status == IN_RESET)? NULL : local); 235 switch (status) { 236 case IN_RESET: 237 (void) isp_async(isp, ISPASYNC_BUS_RESET, &bus); 238 break; 239 case IN_MSG_RECEIVED: 240 case IN_IDE_RECEIVED: 241 if (IS_FC(isp)) { 242 isp_got_msg_fc(isp, bus, (in_fcentry_t *)local); 243 } else { 244 isp_got_msg(isp, bus, (in_entry_t *)local); 245 } 246 break; 247 case IN_RSRC_UNAVAIL: 248 isp_prt(isp, ISP_LOGWARN, "Firmware out of ATIOs"); 249 break; 250 case IN_ABORT_TASK: 251 isp_prt(isp, ISP_LOGWARN, 252 "Abort Task from IID %d RX_ID 0x%x", 253 inot_fcp->in_iid, seqid); 254 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, &bus); 255 break; 256 case IN_PORT_LOGOUT: 257 isp_prt(isp, ISP_LOGWARN, 258 "Port Logout for Initiator %d RX_ID 0x%x", 259 inot_fcp->in_iid, seqid); 260 break; 261 case IN_PORT_CHANGED: 262 isp_prt(isp, ISP_LOGWARN, 263 "Port Changed for Initiator %d RX_ID 0x%x", 264 inot_fcp->in_iid, seqid); 265 break; 266 case IN_GLOBAL_LOGO: 267 isp_prt(isp, ISP_LOGWARN, "All ports logged out"); 268 break; 269 default: 270 isp_prt(isp, ISP_LOGERR, 271 "bad status (0x%x) in isp_target_notify", status); 272 break; 273 } 274 break; 275 276 case RQSTYPE_NOTIFY_ACK: 277 /* 278 * The ISP is acknowledging our acknowledgement of an 279 * Immediate Notify entry for some asynchronous event. 280 */ 281 if (IS_FC(isp)) { 282 isp_get_notify_ack_fc(isp, nack_fcp, 283 (na_fcentry_t *)local); 284 nack_fcp = (na_fcentry_t *)local; 285 isp_prt(isp, ISP_LOGTDEBUG1, 286 "Notify Ack status=0x%x seqid 0x%x", 287 nack_fcp->na_status, nack_fcp->na_seqid); 288 } else { 289 isp_get_notify_ack(isp, nackp, (na_entry_t *)local); 290 nackp = (na_entry_t *)local; 291 isp_prt(isp, ISP_LOGTDEBUG1, 292 "Notify Ack event 0x%x status=0x%x seqid 0x%x", 293 nackp->na_event, nackp->na_status, nackp->na_seqid); 294 } 295 break; 296 default: 297 isp_prt(isp, ISP_LOGERR, 298 "Unknown entry type 0x%x in isp_target_notify", type); 299 rval = -1; 300 break; 301 } 302 #undef atiop 303 #undef at2iop 304 #undef ctiop 305 #undef ct2iop 306 #undef lunenp 307 #undef inotp 308 #undef inot_fcp 309 #undef nackp 310 #undef nack_fcp 311 #undef hdrp 312 return (rval); 313 } 314 315 316 /* 317 * Toggle (on/off) target mode for bus/target/lun 318 * 319 * The caller has checked for overlap and legality. 320 * 321 * Note that not all of bus, target or lun can be paid attention to. 322 * Note also that this action will not be complete until the f/w writes 323 * response entry. The caller is responsible for synchronizing this. 324 */ 325 int 326 isp_lun_cmd(struct ispsoftc *isp, int cmd, int bus, int tgt, int lun, 327 int cmd_cnt, int inot_cnt, u_int32_t opaque) 328 { 329 lun_entry_t el; 330 u_int16_t nxti, optr; 331 void *outp; 332 333 334 MEMZERO(&el, sizeof (el)); 335 if (IS_DUALBUS(isp)) { 336 el.le_rsvd = (bus & 0x1) << 7; 337 } 338 el.le_cmd_count = cmd_cnt; 339 el.le_in_count = inot_cnt; 340 if (cmd == RQSTYPE_ENABLE_LUN) { 341 if (IS_SCSI(isp)) { 342 el.le_flags = LUN_TQAE|LUN_DISAD; 343 el.le_cdb6len = 12; 344 el.le_cdb7len = 12; 345 } 346 } else if (cmd == -RQSTYPE_ENABLE_LUN) { 347 cmd = RQSTYPE_ENABLE_LUN; 348 el.le_cmd_count = 0; 349 el.le_in_count = 0; 350 } else if (cmd == -RQSTYPE_MODIFY_LUN) { 351 cmd = RQSTYPE_MODIFY_LUN; 352 el.le_ops = LUN_CCDECR | LUN_INDECR; 353 } else { 354 el.le_ops = LUN_CCINCR | LUN_ININCR; 355 } 356 el.le_header.rqs_entry_type = cmd; 357 el.le_header.rqs_entry_count = 1; 358 el.le_reserved = opaque; 359 if (IS_SCSI(isp)) { 360 el.le_tgt = tgt; 361 el.le_lun = lun; 362 } else if ((FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) == 0) { 363 el.le_lun = lun; 364 } 365 el.le_timeout = 2; 366 367 if (isp_getrqentry(isp, &nxti, &optr, &outp)) { 368 isp_prt(isp, ISP_LOGERR, 369 "Request Queue Overflow in isp_lun_cmd"); 370 return (-1); 371 } 372 ISP_TDQE(isp, "isp_lun_cmd", (int) optr, &el); 373 isp_put_enable_lun(isp, &el, outp); 374 ISP_ADD_REQUEST(isp, nxti); 375 return (0); 376 } 377 378 379 int 380 isp_target_put_entry(struct ispsoftc *isp, void *ap) 381 { 382 void *outp; 383 u_int16_t nxti, optr; 384 u_int8_t etype = ((isphdr_t *) ap)->rqs_entry_type; 385 386 if (isp_getrqentry(isp, &nxti, &optr, &outp)) { 387 isp_prt(isp, ISP_LOGWARN, 388 "Request Queue Overflow in isp_target_put_entry"); 389 return (-1); 390 } 391 switch (etype) { 392 case RQSTYPE_ATIO: 393 isp_put_atio(isp, (at_entry_t *) ap, (at_entry_t *) outp); 394 break; 395 case RQSTYPE_ATIO2: 396 isp_put_atio2(isp, (at2_entry_t *) ap, (at2_entry_t *) outp); 397 break; 398 case RQSTYPE_CTIO: 399 isp_put_ctio(isp, (ct_entry_t *) ap, (ct_entry_t *) outp); 400 break; 401 case RQSTYPE_CTIO2: 402 isp_put_ctio2(isp, (ct2_entry_t *) ap, (ct2_entry_t *) outp); 403 break; 404 default: 405 isp_prt(isp, ISP_LOGERR, 406 "Unknown type 0x%x in isp_put_entry", etype); 407 return (-1); 408 } 409 410 ISP_TDQE(isp, "isp_target_put_entry", (int) optr, ap);; 411 ISP_ADD_REQUEST(isp, nxti); 412 return (0); 413 } 414 415 int 416 isp_target_put_atio(struct ispsoftc *isp, void *arg) 417 { 418 union { 419 at_entry_t _atio; 420 at2_entry_t _atio2; 421 } atun; 422 423 MEMZERO(&atun, sizeof atun); 424 if (IS_FC(isp)) { 425 at2_entry_t *aep = arg; 426 atun._atio2.at_header.rqs_entry_type = RQSTYPE_ATIO2; 427 atun._atio2.at_header.rqs_entry_count = 1; 428 if (FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) { 429 atun._atio2.at_scclun = (u_int16_t) aep->at_scclun; 430 } else { 431 atun._atio2.at_lun = (u_int8_t) aep->at_lun; 432 } 433 atun._atio2.at_status = CT_OK; 434 } else { 435 at_entry_t *aep = arg; 436 atun._atio.at_header.rqs_entry_type = RQSTYPE_ATIO; 437 atun._atio.at_header.rqs_entry_count = 1; 438 atun._atio.at_handle = aep->at_handle; 439 atun._atio.at_iid = aep->at_iid; 440 atun._atio.at_tgt = aep->at_tgt; 441 atun._atio.at_lun = aep->at_lun; 442 atun._atio.at_tag_type = aep->at_tag_type; 443 atun._atio.at_tag_val = aep->at_tag_val; 444 atun._atio.at_status = (aep->at_flags & AT_TQAE); 445 atun._atio.at_status |= CT_OK; 446 } 447 return (isp_target_put_entry(isp, &atun)); 448 } 449 450 /* 451 * Command completion- both for handling cases of no resources or 452 * no blackhole driver, or other cases where we have to, inline, 453 * finish the command sanely, or for normal command completion. 454 * 455 * The 'completion' code value has the scsi status byte in the low 8 bits. 456 * If status is a CHECK CONDITION and bit 8 is nonzero, then bits 12..15 have 457 * the sense key and bits 16..23 have the ASCQ and bits 24..31 have the ASC 458 * values. 459 * 460 * NB: the key, asc, ascq, cannot be used for parallel SCSI as it doesn't 461 * NB: inline SCSI sense reporting. As such, we lose this information. XXX. 462 * 463 * For both parallel && fibre channel, we use the feature that does 464 * an automatic resource autoreplenish so we don't have then later do 465 * put of an atio to replenish the f/w's resource count. 466 */ 467 468 int 469 isp_endcmd(struct ispsoftc *isp, void *arg, u_int32_t code, u_int16_t hdl) 470 { 471 int sts; 472 union { 473 ct_entry_t _ctio; 474 ct2_entry_t _ctio2; 475 } un; 476 477 MEMZERO(&un, sizeof un); 478 sts = code & 0xff; 479 480 if (IS_FC(isp)) { 481 at2_entry_t *aep = arg; 482 ct2_entry_t *cto = &un._ctio2; 483 484 cto->ct_header.rqs_entry_type = RQSTYPE_CTIO2; 485 cto->ct_header.rqs_entry_count = 1; 486 cto->ct_iid = aep->at_iid; 487 if ((FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) == 0) { 488 cto->ct_lun = aep->at_lun; 489 } 490 cto->ct_rxid = aep->at_rxid; 491 cto->rsp.m1.ct_scsi_status = sts & 0xff; 492 cto->ct_flags = CT2_SENDSTATUS | CT2_NO_DATA | CT2_FLAG_MODE1; 493 if (hdl == 0) { 494 cto->ct_flags |= CT2_CCINCR; 495 } 496 if (aep->at_datalen) { 497 cto->ct_resid = aep->at_datalen; 498 cto->rsp.m1.ct_scsi_status |= CT2_DATA_UNDER; 499 } 500 if ((sts & 0xff) == SCSI_CHECK && (sts & ECMD_SVALID)) { 501 cto->rsp.m1.ct_resp[0] = 0xf0; 502 cto->rsp.m1.ct_resp[2] = (code >> 12) & 0xf; 503 cto->rsp.m1.ct_resp[7] = 8; 504 cto->rsp.m1.ct_resp[12] = (code >> 24) & 0xff; 505 cto->rsp.m1.ct_resp[13] = (code >> 16) & 0xff; 506 cto->rsp.m1.ct_senselen = 16; 507 cto->rsp.m1.ct_scsi_status |= CT2_SNSLEN_VALID; 508 } 509 cto->ct_syshandle = hdl; 510 } else { 511 at_entry_t *aep = arg; 512 ct_entry_t *cto = &un._ctio; 513 514 cto->ct_header.rqs_entry_type = RQSTYPE_CTIO; 515 cto->ct_header.rqs_entry_count = 1; 516 cto->ct_fwhandle = aep->at_handle; 517 cto->ct_iid = aep->at_iid; 518 cto->ct_tgt = aep->at_tgt; 519 cto->ct_lun = aep->at_lun; 520 cto->ct_tag_type = aep->at_tag_type; 521 cto->ct_tag_val = aep->at_tag_val; 522 if (aep->at_flags & AT_TQAE) { 523 cto->ct_flags |= CT_TQAE; 524 } 525 cto->ct_flags = CT_SENDSTATUS | CT_NO_DATA; 526 if (hdl == 0) { 527 cto->ct_flags |= CT_CCINCR; 528 } 529 cto->ct_scsi_status = sts; 530 cto->ct_syshandle = hdl; 531 } 532 return (isp_target_put_entry(isp, &un)); 533 } 534 535 void 536 isp_target_async(struct ispsoftc *isp, int bus, int event) 537 { 538 tmd_event_t evt; 539 tmd_msg_t msg; 540 541 switch (event) { 542 /* 543 * These three we handle here to propagate an effective bus reset 544 * upstream, but these do not require any immediate notify actions 545 * so we return when done. 546 */ 547 case ASYNC_LIP_F8: 548 case ASYNC_LIP_OCCURRED: 549 case ASYNC_LOOP_UP: 550 case ASYNC_LOOP_DOWN: 551 case ASYNC_LOOP_RESET: 552 case ASYNC_PTPMODE: 553 /* 554 * These don't require any immediate notify actions. We used 555 * treat them like SCSI Bus Resets, but that was just plain 556 * wrong. Let the normal CTIO completion report what occurred. 557 */ 558 return; 559 560 case ASYNC_BUS_RESET: 561 case ASYNC_TIMEOUT_RESET: 562 if (IS_FC(isp)) { 563 return; /* we'll be getting an inotify instead */ 564 } 565 evt.ev_bus = bus; 566 evt.ev_event = event; 567 (void) isp_async(isp, ISPASYNC_TARGET_EVENT, &evt); 568 break; 569 case ASYNC_DEVICE_RESET: 570 /* 571 * Bus Device Reset resets a specific target, so 572 * we pass this as a synthesized message. 573 */ 574 MEMZERO(&msg, sizeof msg); 575 if (IS_FC(isp)) { 576 msg.nt_iid = FCPARAM(isp)->isp_loopid; 577 } else { 578 msg.nt_iid = SDPARAM(isp)->isp_initiator_id; 579 } 580 msg.nt_bus = bus; 581 msg.nt_msg[0] = MSG_BUS_DEV_RESET; 582 (void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg); 583 break; 584 default: 585 isp_prt(isp, ISP_LOGERR, 586 "isp_target_async: unknown event 0x%x", event); 587 break; 588 } 589 if (isp->isp_state == ISP_RUNSTATE) 590 isp_notify_ack(isp, NULL); 591 } 592 593 594 /* 595 * Process a received message. 596 * The ISP firmware can handle most messages, there are only 597 * a few that we need to deal with: 598 * - abort: clean up the current command 599 * - abort tag and clear queue 600 */ 601 602 static void 603 isp_got_msg(struct ispsoftc *isp, int bus, in_entry_t *inp) 604 { 605 u_int8_t status = inp->in_status & ~QLTM_SVALID; 606 607 if (status == IN_IDE_RECEIVED || status == IN_MSG_RECEIVED) { 608 tmd_msg_t msg; 609 610 MEMZERO(&msg, sizeof (msg)); 611 msg.nt_bus = bus; 612 msg.nt_iid = inp->in_iid; 613 msg.nt_tgt = inp->in_tgt; 614 msg.nt_lun = inp->in_lun; 615 msg.nt_tagtype = inp->in_tag_type; 616 msg.nt_tagval = inp->in_tag_val; 617 MEMCPY(msg.nt_msg, inp->in_msg, IN_MSGLEN); 618 (void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg); 619 } else { 620 isp_prt(isp, ISP_LOGERR, 621 "unknown immediate notify status 0x%x", inp->in_status); 622 } 623 } 624 625 /* 626 * Synthesize a message from the task management flags in a FCP_CMND_IU. 627 */ 628 static void 629 isp_got_msg_fc(struct ispsoftc *isp, int bus, in_fcentry_t *inp) 630 { 631 int lun; 632 static const char f1[] = "%s from iid %d lun %d seq 0x%x"; 633 static const char f2[] = 634 "unknown %s 0x%x lun %d iid %d task flags 0x%x seq 0x%x\n"; 635 636 if (FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) { 637 lun = inp->in_scclun; 638 } else { 639 lun = inp->in_lun; 640 } 641 642 if (inp->in_status != IN_MSG_RECEIVED) { 643 isp_prt(isp, ISP_LOGINFO, f2, "immediate notify status", 644 inp->in_status, lun, inp->in_iid, 645 inp->in_task_flags, inp->in_seqid); 646 } else { 647 tmd_msg_t msg; 648 649 MEMZERO(&msg, sizeof (msg)); 650 msg.nt_bus = bus; 651 msg.nt_iid = inp->in_iid; 652 msg.nt_tagval = inp->in_seqid; 653 msg.nt_lun = lun; 654 655 if (inp->in_task_flags & TASK_FLAGS_ABORT_TASK) { 656 isp_prt(isp, ISP_LOGINFO, f1, "ABORT TASK", 657 inp->in_iid, msg.nt_lun, inp->in_seqid); 658 msg.nt_msg[0] = MSG_ABORT_TAG; 659 } else if (inp->in_task_flags & TASK_FLAGS_CLEAR_TASK_SET) { 660 isp_prt(isp, ISP_LOGINFO, f1, "CLEAR TASK SET", 661 inp->in_iid, msg.nt_lun, inp->in_seqid); 662 msg.nt_msg[0] = MSG_CLEAR_QUEUE; 663 } else if (inp->in_task_flags & TASK_FLAGS_TARGET_RESET) { 664 isp_prt(isp, ISP_LOGINFO, f1, "TARGET RESET", 665 inp->in_iid, msg.nt_lun, inp->in_seqid); 666 msg.nt_msg[0] = MSG_BUS_DEV_RESET; 667 } else if (inp->in_task_flags & TASK_FLAGS_CLEAR_ACA) { 668 isp_prt(isp, ISP_LOGINFO, f1, "CLEAR ACA", 669 inp->in_iid, msg.nt_lun, inp->in_seqid); 670 /* ???? */ 671 msg.nt_msg[0] = MSG_REL_RECOVERY; 672 } else if (inp->in_task_flags & TASK_FLAGS_TERMINATE_TASK) { 673 isp_prt(isp, ISP_LOGINFO, f1, "TERMINATE TASK", 674 inp->in_iid, msg.nt_lun, inp->in_seqid); 675 msg.nt_msg[0] = MSG_TERM_IO_PROC; 676 } else { 677 isp_prt(isp, ISP_LOGWARN, f2, "task flag", 678 inp->in_status, msg.nt_lun, inp->in_iid, 679 inp->in_task_flags, inp->in_seqid); 680 } 681 if (msg.nt_msg[0]) { 682 (void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg); 683 } 684 } 685 } 686 687 static void 688 isp_notify_ack(struct ispsoftc *isp, void *arg) 689 { 690 char storage[QENTRY_LEN]; 691 u_int16_t nxti, optr; 692 void *outp; 693 694 if (isp_getrqentry(isp, &nxti, &optr, &outp)) { 695 isp_prt(isp, ISP_LOGWARN, 696 "Request Queue Overflow For isp_notify_ack"); 697 return; 698 } 699 700 MEMZERO(storage, QENTRY_LEN); 701 702 if (IS_FC(isp)) { 703 na_fcentry_t *na = (na_fcentry_t *) storage; 704 if (arg) { 705 in_fcentry_t *inp = arg; 706 MEMCPY(storage, arg, sizeof (isphdr_t)); 707 na->na_iid = inp->in_iid; 708 if (FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) { 709 na->na_lun = inp->in_scclun; 710 } else { 711 na->na_lun = inp->in_lun; 712 } 713 na->na_task_flags = inp->in_task_flags; 714 na->na_seqid = inp->in_seqid; 715 na->na_flags = NAFC_RCOUNT; 716 na->na_status = inp->in_status; 717 if (inp->in_status == IN_RESET) { 718 na->na_flags |= NAFC_RST_CLRD; 719 } 720 } else { 721 na->na_flags = NAFC_RST_CLRD; 722 } 723 na->na_header.rqs_entry_type = RQSTYPE_NOTIFY_ACK; 724 na->na_header.rqs_entry_count = 1; 725 isp_put_notify_ack_fc(isp, na, (na_fcentry_t *)outp); 726 } else { 727 na_entry_t *na = (na_entry_t *) storage; 728 if (arg) { 729 in_entry_t *inp = arg; 730 MEMCPY(storage, arg, sizeof (isphdr_t)); 731 na->na_iid = inp->in_iid; 732 na->na_lun = inp->in_lun; 733 na->na_tgt = inp->in_tgt; 734 na->na_seqid = inp->in_seqid; 735 if (inp->in_status == IN_RESET) { 736 na->na_event = NA_RST_CLRD; 737 } 738 } else { 739 na->na_event = NA_RST_CLRD; 740 } 741 na->na_header.rqs_entry_type = RQSTYPE_NOTIFY_ACK; 742 na->na_header.rqs_entry_count = 1; 743 isp_put_notify_ack(isp, na, (na_entry_t *)outp); 744 } 745 ISP_TDQE(isp, "isp_notify_ack", (int) optr, storage); 746 ISP_ADD_REQUEST(isp, nxti); 747 } 748 749 static void 750 isp_handle_atio(struct ispsoftc *isp, at_entry_t *aep) 751 { 752 int lun; 753 lun = aep->at_lun; 754 /* 755 * The firmware status (except for the QLTM_SVALID bit) indicates 756 * why this ATIO was sent to us. 757 * 758 * If QLTM_SVALID is set, the firware has recommended Sense Data. 759 * 760 * If the DISCONNECTS DISABLED bit is set in the flags field, 761 * we're still connected on the SCSI bus - i.e. the initiator 762 * did not set DiscPriv in the identify message. We don't care 763 * about this so it's ignored. 764 */ 765 766 switch(aep->at_status & ~QLTM_SVALID) { 767 case AT_PATH_INVALID: 768 /* 769 * ATIO rejected by the firmware due to disabled lun. 770 */ 771 isp_prt(isp, ISP_LOGERR, 772 "rejected ATIO for disabled lun %d", lun); 773 break; 774 case AT_NOCAP: 775 /* 776 * Requested Capability not available 777 * We sent an ATIO that overflowed the firmware's 778 * command resource count. 779 */ 780 isp_prt(isp, ISP_LOGERR, 781 "rejected ATIO for lun %d because of command count" 782 " overflow", lun); 783 break; 784 785 case AT_BDR_MSG: 786 /* 787 * If we send an ATIO to the firmware to increment 788 * its command resource count, and the firmware is 789 * recovering from a Bus Device Reset, it returns 790 * the ATIO with this status. We set the command 791 * resource count in the Enable Lun entry and do 792 * not increment it. Therefore we should never get 793 * this status here. 794 */ 795 isp_prt(isp, ISP_LOGERR, atiocope, lun, 796 GET_BUS_VAL(aep->at_iid)); 797 break; 798 799 case AT_CDB: /* Got a CDB */ 800 case AT_PHASE_ERROR: /* Bus Phase Sequence Error */ 801 /* 802 * Punt to platform specific layer. 803 */ 804 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, aep); 805 break; 806 807 case AT_RESET: 808 /* 809 * A bus reset came along an blew away this command. Why 810 * they do this in addition the async event code stuff, 811 * I dunno. 812 * 813 * Ignore it because the async event will clear things 814 * up for us. 815 */ 816 isp_prt(isp, ISP_LOGWARN, atior, lun, 817 GET_IID_VAL(aep->at_iid), GET_BUS_VAL(aep->at_iid)); 818 break; 819 820 821 default: 822 isp_prt(isp, ISP_LOGERR, 823 "Unknown ATIO status 0x%x from initiator %d for lun %d", 824 aep->at_status, aep->at_iid, lun); 825 (void) isp_target_put_atio(isp, aep); 826 break; 827 } 828 } 829 830 static void 831 isp_handle_atio2(struct ispsoftc *isp, at2_entry_t *aep) 832 { 833 int lun; 834 835 if (FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) { 836 lun = aep->at_scclun; 837 } else { 838 lun = aep->at_lun; 839 } 840 841 /* 842 * The firmware status (except for the QLTM_SVALID bit) indicates 843 * why this ATIO was sent to us. 844 * 845 * If QLTM_SVALID is set, the firware has recommended Sense Data. 846 * 847 * If the DISCONNECTS DISABLED bit is set in the flags field, 848 * we're still connected on the SCSI bus - i.e. the initiator 849 * did not set DiscPriv in the identify message. We don't care 850 * about this so it's ignored. 851 */ 852 853 switch(aep->at_status & ~QLTM_SVALID) { 854 case AT_PATH_INVALID: 855 /* 856 * ATIO rejected by the firmware due to disabled lun. 857 */ 858 isp_prt(isp, ISP_LOGERR, 859 "rejected ATIO2 for disabled lun %d", lun); 860 break; 861 case AT_NOCAP: 862 /* 863 * Requested Capability not available 864 * We sent an ATIO that overflowed the firmware's 865 * command resource count. 866 */ 867 isp_prt(isp, ISP_LOGERR, 868 "rejected ATIO2 for lun %d- command count overflow", lun); 869 break; 870 871 case AT_BDR_MSG: 872 /* 873 * If we send an ATIO to the firmware to increment 874 * its command resource count, and the firmware is 875 * recovering from a Bus Device Reset, it returns 876 * the ATIO with this status. We set the command 877 * resource count in the Enable Lun entry and no 878 * not increment it. Therefore we should never get 879 * this status here. 880 */ 881 isp_prt(isp, ISP_LOGERR, atiocope, lun, 0); 882 break; 883 884 case AT_CDB: /* Got a CDB */ 885 /* 886 * Punt to platform specific layer. 887 */ 888 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, aep); 889 break; 890 891 case AT_RESET: 892 /* 893 * A bus reset came along an blew away this command. Why 894 * they do this in addition the async event code stuff, 895 * I dunno. 896 * 897 * Ignore it because the async event will clear things 898 * up for us. 899 */ 900 isp_prt(isp, ISP_LOGERR, atior, lun, aep->at_iid, 0); 901 break; 902 903 904 default: 905 isp_prt(isp, ISP_LOGERR, 906 "Unknown ATIO2 status 0x%x from initiator %d for lun %d", 907 aep->at_status, aep->at_iid, lun); 908 (void) isp_target_put_atio(isp, aep); 909 break; 910 } 911 } 912 913 static void 914 isp_handle_ctio(struct ispsoftc *isp, ct_entry_t *ct) 915 { 916 void *xs; 917 int pl = ISP_LOGTDEBUG2; 918 char *fmsg = NULL; 919 920 if (ct->ct_syshandle) { 921 xs = isp_find_xs(isp, ct->ct_syshandle); 922 if (xs == NULL) 923 pl = ISP_LOGALL; 924 } else { 925 xs = NULL; 926 } 927 928 switch(ct->ct_status & ~QLTM_SVALID) { 929 case CT_OK: 930 /* 931 * There are generally 3 possibilities as to why we'd get 932 * this condition: 933 * We disconnected after receiving a CDB. 934 * We sent or received data. 935 * We sent status & command complete. 936 */ 937 938 if (ct->ct_flags & CT_SENDSTATUS) { 939 break; 940 } else if ((ct->ct_flags & CT_DATAMASK) == CT_NO_DATA) { 941 /* 942 * Nothing to do in this case. 943 */ 944 isp_prt(isp, pl, "CTIO- iid %d disconnected OK", 945 ct->ct_iid); 946 return; 947 } 948 break; 949 950 case CT_BDR_MSG: 951 /* 952 * Bus Device Reset message received or the SCSI Bus has 953 * been Reset; the firmware has gone to Bus Free. 954 * 955 * The firmware generates an async mailbox interupt to 956 * notify us of this and returns outstanding CTIOs with this 957 * status. These CTIOs are handled in that same way as 958 * CT_ABORTED ones, so just fall through here. 959 */ 960 fmsg = "Bus Device Reset"; 961 /*FALLTHROUGH*/ 962 case CT_RESET: 963 if (fmsg == NULL) 964 fmsg = "Bus Reset"; 965 /*FALLTHROUGH*/ 966 case CT_ABORTED: 967 /* 968 * When an Abort message is received the firmware goes to 969 * Bus Free and returns all outstanding CTIOs with the status 970 * set, then sends us an Immediate Notify entry. 971 */ 972 if (fmsg == NULL) 973 fmsg = "ABORT TAG message sent by Initiator"; 974 975 isp_prt(isp, ISP_LOGWARN, "CTIO destroyed by %s", fmsg); 976 break; 977 978 case CT_INVAL: 979 /* 980 * CTIO rejected by the firmware due to disabled lun. 981 * "Cannot Happen". 982 */ 983 isp_prt(isp, ISP_LOGERR, 984 "Firmware rejected CTIO for disabled lun %d", 985 ct->ct_lun); 986 break; 987 988 case CT_NOPATH: 989 /* 990 * CTIO rejected by the firmware due "no path for the 991 * nondisconnecting nexus specified". This means that 992 * we tried to access the bus while a non-disconnecting 993 * command is in process. 994 */ 995 isp_prt(isp, ISP_LOGERR, 996 "Firmware rejected CTIO for bad nexus %d/%d/%d", 997 ct->ct_iid, ct->ct_tgt, ct->ct_lun); 998 break; 999 1000 case CT_RSELTMO: 1001 fmsg = "Reselection"; 1002 /*FALLTHROUGH*/ 1003 case CT_TIMEOUT: 1004 if (fmsg == NULL) 1005 fmsg = "Command"; 1006 isp_prt(isp, ISP_LOGERR, "Firmware timed out on %s", fmsg); 1007 break; 1008 1009 case CT_PANIC: 1010 if (fmsg == NULL) 1011 fmsg = "Unrecoverable Error"; 1012 /*FALLTHROUGH*/ 1013 case CT_ERR: 1014 if (fmsg == NULL) 1015 fmsg = "Completed with Error"; 1016 /*FALLTHROUGH*/ 1017 case CT_PHASE_ERROR: 1018 if (fmsg == NULL) 1019 fmsg = "Phase Sequence Error"; 1020 /*FALLTHROUGH*/ 1021 case CT_TERMINATED: 1022 if (fmsg == NULL) 1023 fmsg = "terminated by TERMINATE TRANSFER"; 1024 /*FALLTHROUGH*/ 1025 case CT_NOACK: 1026 if (fmsg == NULL) 1027 fmsg = "unacknowledged Immediate Notify pending"; 1028 isp_prt(isp, ISP_LOGERR, "CTIO returned by f/w- %s", fmsg); 1029 break; 1030 default: 1031 isp_prt(isp, ISP_LOGERR, "Unknown CTIO status 0x%x", 1032 ct->ct_status & ~QLTM_SVALID); 1033 break; 1034 } 1035 1036 if (xs == NULL) { 1037 /* 1038 * There may be more than one CTIO for a data transfer, 1039 * or this may be a status CTIO we're not monitoring. 1040 * 1041 * The assumption is that they'll all be returned in the 1042 * order we got them. 1043 */ 1044 if (ct->ct_syshandle == 0) { 1045 if ((ct->ct_flags & CT_SENDSTATUS) == 0) { 1046 isp_prt(isp, pl, 1047 "intermediate CTIO completed ok"); 1048 } else { 1049 isp_prt(isp, pl, 1050 "unmonitored CTIO completed ok"); 1051 } 1052 } else { 1053 isp_prt(isp, pl, 1054 "NO xs for CTIO (handle 0x%x) status 0x%x", 1055 ct->ct_syshandle, ct->ct_status & ~QLTM_SVALID); 1056 } 1057 } else { 1058 /* 1059 * Final CTIO completed. Release DMA resources and 1060 * notify platform dependent layers. 1061 */ 1062 if ((ct->ct_flags & CT_DATAMASK) != CT_NO_DATA) { 1063 ISP_DMAFREE(isp, xs, ct->ct_syshandle); 1064 } 1065 isp_prt(isp, pl, "final CTIO complete"); 1066 /* 1067 * The platform layer will destroy the handle if appropriate. 1068 */ 1069 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, ct); 1070 } 1071 } 1072 1073 static void 1074 isp_handle_ctio2(struct ispsoftc *isp, ct2_entry_t *ct) 1075 { 1076 XS_T *xs; 1077 int pl = ISP_LOGTDEBUG2; 1078 char *fmsg = NULL; 1079 1080 if (ct->ct_syshandle) { 1081 xs = isp_find_xs(isp, ct->ct_syshandle); 1082 if (xs == NULL) 1083 pl = ISP_LOGALL; 1084 } else { 1085 xs = NULL; 1086 } 1087 1088 switch(ct->ct_status & ~QLTM_SVALID) { 1089 case CT_BUS_ERROR: 1090 isp_prt(isp, ISP_LOGERR, "PCI DMA Bus Error"); 1091 /* FALL Through */ 1092 case CT_DATA_OVER: 1093 case CT_DATA_UNDER: 1094 case CT_OK: 1095 /* 1096 * There are generally 2 possibilities as to why we'd get 1097 * this condition: 1098 * We sent or received data. 1099 * We sent status & command complete. 1100 */ 1101 1102 break; 1103 1104 case CT_BDR_MSG: 1105 /* 1106 * Target Reset function received. 1107 * 1108 * The firmware generates an async mailbox interupt to 1109 * notify us of this and returns outstanding CTIOs with this 1110 * status. These CTIOs are handled in that same way as 1111 * CT_ABORTED ones, so just fall through here. 1112 */ 1113 fmsg = "TARGET RESET Task Management Function Received"; 1114 /*FALLTHROUGH*/ 1115 case CT_RESET: 1116 if (fmsg == NULL) 1117 fmsg = "LIP Reset"; 1118 /*FALLTHROUGH*/ 1119 case CT_ABORTED: 1120 /* 1121 * When an Abort message is received the firmware goes to 1122 * Bus Free and returns all outstanding CTIOs with the status 1123 * set, then sends us an Immediate Notify entry. 1124 */ 1125 if (fmsg == NULL) 1126 fmsg = "ABORT Task Management Function Received"; 1127 1128 isp_prt(isp, ISP_LOGERR, "CTIO2 destroyed by %s", fmsg); 1129 break; 1130 1131 case CT_INVAL: 1132 /* 1133 * CTIO rejected by the firmware - invalid data direction. 1134 */ 1135 isp_prt(isp, ISP_LOGERR, "CTIO2 had wrong data directiond"); 1136 break; 1137 1138 case CT_RSELTMO: 1139 fmsg = "failure to reconnect to initiator"; 1140 /*FALLTHROUGH*/ 1141 case CT_TIMEOUT: 1142 if (fmsg == NULL) 1143 fmsg = "command"; 1144 isp_prt(isp, ISP_LOGERR, "Firmware timed out on %s", fmsg); 1145 break; 1146 1147 case CT_ERR: 1148 fmsg = "Completed with Error"; 1149 /*FALLTHROUGH*/ 1150 case CT_LOGOUT: 1151 if (fmsg == NULL) 1152 fmsg = "Port Logout"; 1153 /*FALLTHROUGH*/ 1154 case CT_PORTNOTAVAIL: 1155 if (fmsg == NULL) 1156 fmsg = "Port not available"; 1157 case CT_PORTCHANGED: 1158 if (fmsg == NULL) 1159 fmsg = "Port Changed"; 1160 case CT_NOACK: 1161 if (fmsg == NULL) 1162 fmsg = "unacknowledged Immediate Notify pending"; 1163 isp_prt(isp, ISP_LOGERR, "CTIO returned by f/w- %s", fmsg); 1164 break; 1165 1166 case CT_INVRXID: 1167 /* 1168 * CTIO rejected by the firmware because an invalid RX_ID. 1169 * Just print a message. 1170 */ 1171 isp_prt(isp, ISP_LOGERR, 1172 "CTIO2 completed with Invalid RX_ID 0x%x", ct->ct_rxid); 1173 break; 1174 1175 default: 1176 isp_prt(isp, ISP_LOGERR, "Unknown CTIO2 status 0x%x", 1177 ct->ct_status & ~QLTM_SVALID); 1178 break; 1179 } 1180 1181 if (xs == NULL) { 1182 /* 1183 * There may be more than one CTIO for a data transfer, 1184 * or this may be a status CTIO we're not monitoring. 1185 * 1186 * The assumption is that they'll all be returned in the 1187 * order we got them. 1188 */ 1189 if (ct->ct_syshandle == 0) { 1190 if ((ct->ct_flags & CT_SENDSTATUS) == 0) { 1191 isp_prt(isp, pl, 1192 "intermediate CTIO completed ok"); 1193 } else { 1194 isp_prt(isp, pl, 1195 "unmonitored CTIO completed ok"); 1196 } 1197 } else { 1198 isp_prt(isp, pl, 1199 "NO xs for CTIO (handle 0x%x) status 0x%x", 1200 ct->ct_syshandle, ct->ct_status & ~QLTM_SVALID); 1201 } 1202 } else { 1203 if ((ct->ct_flags & CT2_DATAMASK) != CT2_NO_DATA) { 1204 ISP_DMAFREE(isp, xs, ct->ct_syshandle); 1205 } 1206 if (ct->ct_flags & CT_SENDSTATUS) { 1207 /* 1208 * Sent status and command complete. 1209 * 1210 * We're now really done with this command, so we 1211 * punt to the platform dependent layers because 1212 * only there can we do the appropriate command 1213 * complete thread synchronization. 1214 */ 1215 isp_prt(isp, pl, "status CTIO complete"); 1216 } else { 1217 /* 1218 * Final CTIO completed. Release DMA resources and 1219 * notify platform dependent layers. 1220 */ 1221 isp_prt(isp, pl, "data CTIO complete"); 1222 } 1223 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, ct); 1224 /* 1225 * The platform layer will destroy the handle if appropriate. 1226 */ 1227 } 1228 } 1229 #endif 1230
Indexes created Fri Sep 26 20:09:58 GMT 2025