1 /* $NetBSD: sbp.c,v 1.43 2025/07/11 22:19:53 andvar Exp $ */ 2 /*- 3 * Copyright (c) 2003 Hidetoshi Shimokawa 4 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the acknowledgement as bellow: 17 * 18 * This product includes software developed by K. Kobayashi and H. Shimokawa 19 * 20 * 4. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 25 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 26 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 32 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 * 35 * $FreeBSD: src/sys/dev/firewire/sbp.c,v 1.100 2009/02/18 18:41:34 sbruno Exp $ 36 * 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: sbp.c,v 1.43 2025/07/11 22:19:53 andvar Exp $"); 41 42 43 #include <sys/param.h> 44 #include <sys/device.h> 45 #include <sys/errno.h> 46 #include <sys/buf.h> 47 #include <sys/callout.h> 48 #include <sys/condvar.h> 49 #include <sys/kernel.h> 50 #include <sys/kthread.h> 51 #include <sys/malloc.h> 52 #include <sys/mutex.h> 53 #include <sys/proc.h> 54 #include <sys/sysctl.h> 55 56 #include <sys/bus.h> 57 58 #include <dev/scsipi/scsi_spc.h> 59 #include <dev/scsipi/scsi_all.h> 60 #include <dev/scsipi/scsipi_all.h> 61 #include <dev/scsipi/scsiconf.h> 62 #include <dev/scsipi/scsipiconf.h> 63 64 #include <dev/ieee1394/firewire.h> 65 #include <dev/ieee1394/firewirereg.h> 66 #include <dev/ieee1394/fwdma.h> 67 #include <dev/ieee1394/iec13213.h> 68 #include <dev/ieee1394/sbp.h> 69 70 #include "locators.h" 71 72 73 #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \ 74 && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2)) 75 76 #define SBP_NUM_TARGETS 8 /* MAX 64 */ 77 #define SBP_NUM_LUNS 64 78 #define SBP_MAXPHYS MIN(MAXPHYS, (512*1024) /* 512KB */) 79 #define SBP_DMA_SIZE PAGE_SIZE 80 #define SBP_LOGIN_SIZE sizeof(struct sbp_login_res) 81 #define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb)) 82 #define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS) 83 84 /* 85 * STATUS FIFO addressing 86 * bit 87 * ----------------------- 88 * 0- 1( 2): 0 (alignment) 89 * 2- 9( 8): lun 90 * 10-31(14): unit 91 * 32-47(16): SBP_BIND_HI 92 * 48-64(16): bus_id, node_id 93 */ 94 #define SBP_BIND_HI 0x1 95 #define SBP_DEV2ADDR(u, l) \ 96 (((uint64_t)SBP_BIND_HI << 32) |\ 97 (((u) & 0x3fff) << 10) |\ 98 (((l) & 0xff) << 2)) 99 #define SBP_ADDR2UNIT(a) (((a) >> 10) & 0x3fff) 100 #define SBP_ADDR2LUN(a) (((a) >> 2) & 0xff) 101 #define SBP_INITIATOR 7 102 103 static const char *orb_fun_name[] = { 104 ORB_FUN_NAMES 105 }; 106 107 static int debug = 0; 108 static int auto_login = 1; 109 static int max_speed = -1; 110 static int sbp_cold = 1; 111 static int ex_login = 1; 112 static int login_delay = 1000; /* msec */ 113 static int scan_delay = 500; /* msec */ 114 static int use_doorbell = 0; 115 static int sbp_tags = 0; 116 117 static int sysctl_sbp_verify(SYSCTLFN_PROTO, int lower, int upper); 118 static int sysctl_sbp_verify_max_speed(SYSCTLFN_PROTO); 119 static int sysctl_sbp_verify_tags(SYSCTLFN_PROTO); 120 121 /* 122 * Setup sysctl(3) MIB, hw.sbp.* 123 * 124 * TBD condition CTLFLAG_PERMANENT on being a module or not 125 */ 126 SYSCTL_SETUP(sysctl_sbp, "sysctl sbp(4) subtree setup") 127 { 128 int rc, sbp_node_num; 129 const struct sysctlnode *node; 130 131 if ((rc = sysctl_createv(clog, 0, NULL, &node, 132 CTLFLAG_PERMANENT, CTLTYPE_NODE, "sbp", 133 SYSCTL_DESCR("sbp controls"), NULL, 0, NULL, 134 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 135 goto err; 136 sbp_node_num = node->sysctl_num; 137 138 /* sbp auto login flag */ 139 if ((rc = sysctl_createv(clog, 0, NULL, &node, 140 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 141 "auto_login", SYSCTL_DESCR("SBP perform login automatically"), 142 NULL, 0, &auto_login, 143 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) 144 goto err; 145 146 /* sbp max speed */ 147 if ((rc = sysctl_createv(clog, 0, NULL, &node, 148 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 149 "max_speed", SYSCTL_DESCR("SBP transfer max speed"), 150 sysctl_sbp_verify_max_speed, 0, &max_speed, 151 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) 152 goto err; 153 154 /* sbp exclusive login flag */ 155 if ((rc = sysctl_createv(clog, 0, NULL, &node, 156 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 157 "exclusive_login", SYSCTL_DESCR("SBP enable exclusive login"), 158 NULL, 0, &ex_login, 159 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) 160 goto err; 161 162 /* sbp login delay */ 163 if ((rc = sysctl_createv(clog, 0, NULL, &node, 164 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 165 "login_delay", SYSCTL_DESCR("SBP login delay in msec"), 166 NULL, 0, &login_delay, 167 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) 168 goto err; 169 170 /* sbp scan delay */ 171 if ((rc = sysctl_createv(clog, 0, NULL, &node, 172 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 173 "scan_delay", SYSCTL_DESCR("SBP scan delay in msec"), 174 NULL, 0, &scan_delay, 175 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) 176 goto err; 177 178 /* sbp use doorbell flag */ 179 if ((rc = sysctl_createv(clog, 0, NULL, &node, 180 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 181 "use_doorbell", SYSCTL_DESCR("SBP use doorbell request"), 182 NULL, 0, &use_doorbell, 183 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) 184 goto err; 185 186 /* sbp force tagged queuing */ 187 if ((rc = sysctl_createv(clog, 0, NULL, &node, 188 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 189 "tags", SYSCTL_DESCR("SBP tagged queuing support"), 190 sysctl_sbp_verify_tags, 0, &sbp_tags, 191 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) 192 goto err; 193 194 /* sbp driver debug flag */ 195 if ((rc = sysctl_createv(clog, 0, NULL, &node, 196 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 197 "sbp_debug", SYSCTL_DESCR("SBP debug flag"), 198 NULL, 0, &debug, 199 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) 200 goto err; 201 202 return; 203 204 err: 205 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 206 } 207 208 static int 209 sysctl_sbp_verify(SYSCTLFN_ARGS, int lower, int upper) 210 { 211 int error, t; 212 struct sysctlnode node; 213 214 node = *rnode; 215 t = *(int*)rnode->sysctl_data; 216 node.sysctl_data = &t; 217 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 218 if (error || newp == NULL) 219 return error; 220 221 if (t < lower || t > upper) 222 return EINVAL; 223 224 *(int*)rnode->sysctl_data = t; 225 226 return 0; 227 } 228 229 static int 230 sysctl_sbp_verify_max_speed(SYSCTLFN_ARGS) 231 { 232 233 return sysctl_sbp_verify(SYSCTLFN_CALL(rnode), 0, FWSPD_S400); 234 } 235 236 static int 237 sysctl_sbp_verify_tags(SYSCTLFN_ARGS) 238 { 239 240 return sysctl_sbp_verify(SYSCTLFN_CALL(rnode), -1, 1); 241 } 242 243 #define NEED_RESPONSE 0 244 245 #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE) 246 #ifdef __sparc64__ /* iommu */ 247 #define SBP_IND_MAX howmany(SBP_MAXPHYS, SBP_SEG_MAX) 248 #else 249 #define SBP_IND_MAX howmany(SBP_MAXPHYS, PAGE_SIZE) 250 #endif 251 struct sbp_ocb { 252 uint32_t orb[8]; 253 #define IND_PTR_OFFSET (sizeof(uint32_t) * 8) 254 struct ind_ptr ind_ptr[SBP_IND_MAX]; 255 struct scsipi_xfer *xs; 256 struct sbp_dev *sdev; 257 uint16_t index; 258 uint16_t flags; /* XXX should be removed */ 259 bus_dmamap_t dmamap; 260 bus_addr_t bus_addr; 261 STAILQ_ENTRY(sbp_ocb) ocb; 262 }; 263 264 #define SBP_ORB_DMA_SYNC(dma, i, op) \ 265 bus_dmamap_sync((dma).dma_tag, (dma).dma_map, \ 266 sizeof(struct sbp_ocb) * (i), \ 267 sizeof(ocb->orb) + sizeof(ocb->ind_ptr), (op)); 268 269 #define OCB_ACT_MGM 0 270 #define OCB_ACT_CMD 1 271 #define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo)) 272 273 struct sbp_dev{ 274 #define SBP_DEV_RESET 0 /* accept login */ 275 #define SBP_DEV_LOGIN 1 /* to login */ 276 #if 0 277 #define SBP_DEV_RECONN 2 /* to reconnect */ 278 #endif 279 #define SBP_DEV_TOATTACH 3 /* to attach */ 280 #define SBP_DEV_PROBE 4 /* scan lun */ 281 #define SBP_DEV_ATTACHED 5 /* in operation */ 282 #define SBP_DEV_DEAD 6 /* unavailable unit */ 283 #define SBP_DEV_RETRY 7 /* unavailable unit */ 284 uint8_t status:4, 285 timeout:4; 286 uint8_t type; 287 uint16_t lun_id; 288 uint16_t freeze; 289 #define ORB_LINK_DEAD (1 << 0) 290 #define VALID_LUN (1 << 1) 291 #define ORB_POINTER_ACTIVE (1 << 2) 292 #define ORB_POINTER_NEED (1 << 3) 293 #define ORB_DOORBELL_ACTIVE (1 << 4) 294 #define ORB_DOORBELL_NEED (1 << 5) 295 #define ORB_SHORTAGE (1 << 6) 296 uint16_t flags; 297 struct scsipi_periph *periph; 298 struct sbp_target *target; 299 struct fwdma_alloc dma; 300 struct sbp_login_res *login; 301 struct callout login_callout; 302 struct sbp_ocb *ocb; 303 STAILQ_HEAD(, sbp_ocb) ocbs; 304 STAILQ_HEAD(, sbp_ocb) free_ocbs; 305 struct sbp_ocb *last_ocb; 306 char vendor[32]; 307 char product[32]; 308 char revision[10]; 309 char bustgtlun[32]; 310 }; 311 312 struct sbp_target { 313 int target_id; 314 int num_lun; 315 struct sbp_dev **luns; 316 struct sbp_softc *sbp; 317 struct fw_device *fwdev; 318 uint32_t mgm_hi, mgm_lo; 319 struct sbp_ocb *mgm_ocb_cur; 320 STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue; 321 struct callout mgm_ocb_timeout; 322 STAILQ_HEAD(, fw_xfer) xferlist; 323 int n_xfer; 324 }; 325 326 struct sbp_softc { 327 struct firewire_dev_comm sc_fd; 328 struct scsipi_adapter sc_adapter; 329 struct scsipi_channel sc_channel; 330 device_t sc_bus; 331 struct lwp *sc_lwp; 332 struct sbp_target sc_target; 333 struct fw_bind sc_fwb; 334 bus_dma_tag_t sc_dmat; 335 struct timeval sc_last_busreset; 336 int sc_flags; 337 kmutex_t sc_mtx; 338 kcondvar_t sc_cv; 339 }; 340 341 MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/IEEE1394"); 342 MALLOC_DECLARE(M_SBP); 343 344 345 static int sbpmatch(device_t, cfdata_t, void *); 346 static void sbpattach(device_t, device_t, void *); 347 static int sbpdetach(device_t, int); 348 349 static void sbp_scsipi_request(struct scsipi_channel *, scsipi_adapter_req_t, 350 void *); 351 static void sbp_minphys(struct buf *); 352 353 static void sbp_show_sdev_info(struct sbp_dev *); 354 static void sbp_alloc_lun(struct sbp_target *); 355 static struct sbp_target *sbp_alloc_target(struct sbp_softc *, 356 struct fw_device *); 357 static void sbp_probe_lun(struct sbp_dev *); 358 static void sbp_login_callout(void *); 359 static void sbp_login(struct sbp_dev *); 360 static void sbp_probe_target(void *); 361 static void sbp_post_busreset(void *); 362 static void sbp_post_explore(void *); 363 #if NEED_RESPONSE 364 static void sbp_loginres_callback(struct fw_xfer *); 365 #endif 366 static inline void sbp_xfer_free(struct fw_xfer *); 367 static void sbp_reset_start_callback(struct fw_xfer *); 368 static void sbp_reset_start(struct sbp_dev *); 369 static void sbp_mgm_callback(struct fw_xfer *); 370 static void sbp_scsipi_scan_target(void *); 371 static inline void sbp_scan_dev(struct sbp_dev *); 372 static void sbp_do_attach(struct fw_xfer *); 373 static void sbp_agent_reset_callback(struct fw_xfer *); 374 static void sbp_agent_reset(struct sbp_dev *); 375 static void sbp_busy_timeout_callback(struct fw_xfer *); 376 static void sbp_busy_timeout(struct sbp_dev *); 377 static void sbp_orb_pointer_callback(struct fw_xfer *); 378 static void sbp_orb_pointer(struct sbp_dev *, struct sbp_ocb *); 379 static void sbp_doorbell_callback(struct fw_xfer *); 380 static void sbp_doorbell(struct sbp_dev *); 381 static struct fw_xfer *sbp_write_cmd(struct sbp_dev *, int, int); 382 static void sbp_mgm_orb(struct sbp_dev *, int, struct sbp_ocb *); 383 static void sbp_print_scsi_cmd(struct sbp_ocb *); 384 static void sbp_scsi_status(struct sbp_status *, struct sbp_ocb *); 385 static void sbp_fix_inq_data(struct sbp_ocb *); 386 static void sbp_recv(struct fw_xfer *); 387 static int sbp_logout_all(struct sbp_softc *); 388 static void sbp_free_sdev(struct sbp_dev *); 389 static void sbp_free_target(struct sbp_target *); 390 static void sbp_scsipi_detach_sdev(struct sbp_dev *); 391 static void sbp_scsipi_detach_target(struct sbp_target *); 392 static void sbp_target_reset(struct sbp_dev *, int); 393 static void sbp_mgm_timeout(void *); 394 static void sbp_timeout(void *); 395 static void sbp_action1(struct sbp_softc *, struct scsipi_xfer *); 396 static void sbp_execute_ocb(struct sbp_ocb *, bus_dma_segment_t *, int); 397 static struct sbp_ocb *sbp_dequeue_ocb(struct sbp_dev *, struct sbp_status *); 398 static struct sbp_ocb *sbp_enqueue_ocb(struct sbp_dev *, struct sbp_ocb *); 399 static struct sbp_ocb *sbp_get_ocb(struct sbp_dev *); 400 static void sbp_free_ocb(struct sbp_dev *, struct sbp_ocb *); 401 static void sbp_abort_ocb(struct sbp_ocb *, int); 402 static void sbp_abort_all_ocbs(struct sbp_dev *, int); 403 404 405 static const char *orb_status0[] = { 406 /* 0 */ "No additional information to report", 407 /* 1 */ "Request type not supported", 408 /* 2 */ "Speed not supported", 409 /* 3 */ "Page size not supported", 410 /* 4 */ "Access denied", 411 /* 5 */ "Logical unit not supported", 412 /* 6 */ "Maximum payload too small", 413 /* 7 */ "Reserved for future standardization", 414 /* 8 */ "Resources unavailable", 415 /* 9 */ "Function rejected", 416 /* A */ "Login ID not recognized", 417 /* B */ "Dummy ORB completed", 418 /* C */ "Request aborted", 419 /* FF */ "Unspecified error" 420 #define MAX_ORB_STATUS0 0xd 421 }; 422 423 static const char *orb_status1_object[] = { 424 /* 0 */ "Operation request block (ORB)", 425 /* 1 */ "Data buffer", 426 /* 2 */ "Page table", 427 /* 3 */ "Unable to specify" 428 }; 429 430 static const char *orb_status1_serial_bus_error[] = { 431 /* 0 */ "Missing acknowledge", 432 /* 1 */ "Reserved; not to be used", 433 /* 2 */ "Time-out error", 434 /* 3 */ "Reserved; not to be used", 435 /* 4 */ "Busy retry limit exceeded(X)", 436 /* 5 */ "Busy retry limit exceeded(A)", 437 /* 6 */ "Busy retry limit exceeded(B)", 438 /* 7 */ "Reserved for future standardization", 439 /* 8 */ "Reserved for future standardization", 440 /* 9 */ "Reserved for future standardization", 441 /* A */ "Reserved for future standardization", 442 /* B */ "Tardy retry limit exceeded", 443 /* C */ "Conflict error", 444 /* D */ "Data error", 445 /* E */ "Type error", 446 /* F */ "Address error" 447 }; 448 449 450 CFATTACH_DECL_NEW(sbp, sizeof(struct sbp_softc), 451 sbpmatch, sbpattach, sbpdetach, NULL); 452 453 454 int 455 sbpmatch(device_t parent, cfdata_t cf, void *aux) 456 { 457 struct fw_attach_args *fwa = aux; 458 459 if (strcmp(fwa->name, "sbp") == 0) 460 return 1; 461 return 0; 462 } 463 464 static void 465 sbpattach(device_t parent, device_t self, void *aux) 466 { 467 struct sbp_softc *sc = device_private(self); 468 struct fw_attach_args *fwa = (struct fw_attach_args *)aux; 469 struct firewire_comm *fc; 470 struct scsipi_adapter *sc_adapter = &sc->sc_adapter; 471 struct scsipi_channel *sc_channel = &sc->sc_channel; 472 struct sbp_target *target = &sc->sc_target; 473 int dv_unit; 474 475 aprint_naive("\n"); 476 aprint_normal(": SBP-2/SCSI over IEEE1394\n"); 477 478 sc->sc_fd.dev = self; 479 480 if (cold) 481 sbp_cold++; 482 sc->sc_fd.fc = fc = fwa->fc; 483 mutex_init(&sc->sc_mtx, MUTEX_DEFAULT, IPL_VM); 484 cv_init(&sc->sc_cv, "sbp"); 485 486 if (max_speed < 0) 487 max_speed = fc->speed; 488 489 sc->sc_dmat = fc->dmat; 490 491 sc->sc_target.fwdev = NULL; 492 sc->sc_target.luns = NULL; 493 494 /* Initialize mutexes and lists before we can error out 495 * to prevent crashes on detach 496 */ 497 mutex_init(&sc->sc_fwb.fwb_mtx, MUTEX_DEFAULT, IPL_VM); 498 STAILQ_INIT(&sc->sc_fwb.xferlist); 499 500 if (sbp_alloc_target(sc, fwa->fwdev) == NULL) 501 return; 502 503 sc_adapter->adapt_dev = sc->sc_fd.dev; 504 sc_adapter->adapt_nchannels = 1; 505 sc_adapter->adapt_max_periph = 1; 506 sc_adapter->adapt_request = sbp_scsipi_request; 507 sc_adapter->adapt_minphys = sbp_minphys; 508 sc_adapter->adapt_openings = 8; 509 510 sc_channel->chan_adapter = sc_adapter; 511 sc_channel->chan_bustype = &scsi_bustype; 512 sc_channel->chan_defquirks = PQUIRK_ONLYBIG; 513 sc_channel->chan_channel = 0; 514 sc_channel->chan_flags = SCSIPI_CHAN_CANGROW | SCSIPI_CHAN_NOSETTLE; 515 516 sc_channel->chan_ntargets = 1; 517 sc_channel->chan_nluns = target->num_lun; /* We set nluns 0 now */ 518 sc_channel->chan_id = 1; 519 520 sc->sc_bus = config_found(sc->sc_fd.dev, sc_channel, scsiprint, 521 CFARGS_NONE); 522 if (sc->sc_bus == NULL) { 523 aprint_error_dev(self, "attach failed\n"); 524 return; 525 } 526 527 /* We reserve 16 bit space (4 bytes X 64 unit X 256 luns) */ 528 dv_unit = device_unit(sc->sc_fd.dev); 529 sc->sc_fwb.start = SBP_DEV2ADDR(dv_unit, 0); 530 sc->sc_fwb.end = SBP_DEV2ADDR(dv_unit, -1); 531 /* pre-allocate xfer */ 532 fw_xferlist_add(&sc->sc_fwb.xferlist, M_SBP, 533 /*send*/ 0, /*recv*/ SBP_RECV_LEN, SBP_NUM_OCB / 2, 534 fc, (void *)sc, sbp_recv); 535 fw_bindadd(fc, &sc->sc_fwb); 536 537 sc->sc_fd.post_busreset = sbp_post_busreset; 538 sc->sc_fd.post_explore = sbp_post_explore; 539 540 if (fc->status != FWBUSNOTREADY) { 541 sbp_post_busreset((void *)sc); 542 sbp_post_explore((void *)sc); 543 } 544 } 545 546 static int 547 sbpdetach(device_t self, int flags) 548 { 549 struct sbp_softc *sc = device_private(self); 550 struct firewire_comm *fc = sc->sc_fd.fc; 551 552 sbp_scsipi_detach_target(&sc->sc_target); 553 554 if (sc->sc_target.fwdev && SBP_FWDEV_ALIVE(sc->sc_target.fwdev)) { 555 sbp_logout_all(sc); 556 557 /* XXX wait for logout completion */ 558 mutex_enter(&sc->sc_mtx); 559 cv_timedwait_sig(&sc->sc_cv, &sc->sc_mtx, hz/2); 560 mutex_exit(&sc->sc_mtx); 561 } 562 563 sbp_free_target(&sc->sc_target); 564 565 fw_bindremove(fc, &sc->sc_fwb); 566 fw_xferlist_remove(&sc->sc_fwb.xferlist); 567 mutex_destroy(&sc->sc_fwb.fwb_mtx); 568 569 mutex_destroy(&sc->sc_mtx); 570 cv_destroy(&sc->sc_cv); 571 572 return 0; 573 } 574 575 576 static void 577 sbp_scsipi_request(struct scsipi_channel *channel, scsipi_adapter_req_t req, 578 void *arg) 579 { 580 struct sbp_softc *sc = device_private(channel->chan_adapter->adapt_dev); 581 struct scsipi_xfer *xs = arg; 582 int i; 583 584 SBP_DEBUG(1) 585 printf("Called sbp_scsipi_request\n"); 586 END_DEBUG 587 588 switch (req) { 589 case ADAPTER_REQ_RUN_XFER: 590 SBP_DEBUG(1) 591 printf("Got req_run_xfer\n"); 592 printf("xs control: 0x%08x, timeout: %d\n", 593 xs->xs_control, xs->timeout); 594 printf("opcode: 0x%02x\n", (int)xs->cmd->opcode); 595 for (i = 0; i < 15; i++) 596 printf("0x%02x ",(int)xs->cmd->bytes[i]); 597 printf("\n"); 598 END_DEBUG 599 if (xs->xs_control & XS_CTL_RESET) { 600 SBP_DEBUG(1) 601 printf("XS_CTL_RESET not support\n"); 602 END_DEBUG 603 break; 604 } 605 #define SBPSCSI_SBP2_MAX_CDB 12 606 if (xs->cmdlen > SBPSCSI_SBP2_MAX_CDB) { 607 SBP_DEBUG(0) 608 printf( 609 "sbp doesn't support cdb's larger than %d bytes\n", 610 SBPSCSI_SBP2_MAX_CDB); 611 END_DEBUG 612 xs->error = XS_DRIVER_STUFFUP; 613 scsipi_done(xs); 614 return; 615 } 616 sbp_action1(sc, xs); 617 618 break; 619 case ADAPTER_REQ_GROW_RESOURCES: 620 SBP_DEBUG(1) 621 printf("Got req_grow_resources\n"); 622 END_DEBUG 623 break; 624 case ADAPTER_REQ_SET_XFER_MODE: 625 SBP_DEBUG(1) 626 printf("Got set xfer mode\n"); 627 END_DEBUG 628 break; 629 default: 630 panic("Unknown request: %d\n", (int)req); 631 } 632 } 633 634 static void 635 sbp_minphys(struct buf *bp) 636 { 637 638 minphys(bp); 639 } 640 641 642 /* 643 * Display device characteristics on the console 644 */ 645 static void 646 sbp_show_sdev_info(struct sbp_dev *sdev) 647 { 648 struct fw_device *fwdev = sdev->target->fwdev; 649 struct sbp_softc *sc = sdev->target->sbp; 650 651 aprint_normal_dev(sc->sc_fd.dev, 652 "ordered:%d type:%d EUI:%08x%08x node:%d speed:%d maxrec:%d\n", 653 (sdev->type & 0x40) >> 6, 654 (sdev->type & 0x1f), 655 fwdev->eui.hi, 656 fwdev->eui.lo, 657 fwdev->dst, 658 fwdev->speed, 659 fwdev->maxrec); 660 aprint_normal_dev(sc->sc_fd.dev, "%s '%s' '%s' '%s'\n", 661 sdev->bustgtlun, sdev->vendor, sdev->product, sdev->revision); 662 } 663 664 static void 665 sbp_alloc_lun(struct sbp_target *target) 666 { 667 struct crom_context cc; 668 struct csrreg *reg; 669 struct sbp_dev *sdev, **newluns; 670 struct sbp_softc *sc; 671 int maxlun, lun, i; 672 673 sc = target->sbp; 674 crom_init_context(&cc, target->fwdev->csrrom); 675 /* XXX should parse appropriate unit directories only */ 676 maxlun = -1; 677 while (cc.depth >= 0) { 678 reg = crom_search_key(&cc, CROM_LUN); 679 if (reg == NULL) 680 break; 681 lun = reg->val & 0xffff; 682 SBP_DEBUG(0) 683 printf("target %d lun %d found\n", target->target_id, lun); 684 END_DEBUG 685 if (maxlun < lun) 686 maxlun = lun; 687 crom_next(&cc); 688 } 689 if (maxlun < 0) 690 aprint_normal_dev(sc->sc_fd.dev, "%d: no LUN found\n", 691 target->target_id); 692 693 maxlun++; 694 if (maxlun >= SBP_NUM_LUNS) 695 maxlun = SBP_NUM_LUNS; 696 697 /* Invalidiate stale devices */ 698 for (lun = 0; lun < target->num_lun; lun++) { 699 sdev = target->luns[lun]; 700 if (sdev == NULL) 701 continue; 702 sdev->flags &= ~VALID_LUN; 703 if (lun >= maxlun) { 704 /* lost device */ 705 sbp_scsipi_detach_sdev(sdev); 706 sbp_free_sdev(sdev); 707 target->luns[lun] = NULL; 708 } 709 } 710 711 /* Reallocate */ 712 if (maxlun != target->num_lun) { 713 newluns = (struct sbp_dev **) realloc(target->luns, 714 sizeof(struct sbp_dev *) * maxlun, 715 M_SBP, M_WAITOK | M_ZERO); 716 717 /* 718 * We must zero the extended region for the case 719 * realloc() doesn't allocate new buffer. 720 */ 721 if (maxlun > target->num_lun) { 722 const int sbp_dev_p_sz = sizeof(struct sbp_dev *); 723 724 memset(&newluns[target->num_lun], 0, 725 sbp_dev_p_sz * (maxlun - target->num_lun)); 726 } 727 728 target->luns = newluns; 729 target->num_lun = maxlun; 730 } 731 732 crom_init_context(&cc, target->fwdev->csrrom); 733 while (cc.depth >= 0) { 734 int new = 0; 735 736 reg = crom_search_key(&cc, CROM_LUN); 737 if (reg == NULL) 738 break; 739 lun = reg->val & 0xffff; 740 if (lun >= SBP_NUM_LUNS) { 741 aprint_error_dev(sc->sc_fd.dev, "too large lun %d\n", 742 lun); 743 goto next; 744 } 745 746 sdev = target->luns[lun]; 747 if (sdev == NULL) { 748 sdev = malloc(sizeof(struct sbp_dev), 749 M_SBP, M_WAITOK | M_ZERO); 750 target->luns[lun] = sdev; 751 sdev->lun_id = lun; 752 sdev->target = target; 753 STAILQ_INIT(&sdev->ocbs); 754 callout_init(&sdev->login_callout, CALLOUT_MPSAFE); 755 callout_setfunc(&sdev->login_callout, 756 sbp_login_callout, sdev); 757 sdev->status = SBP_DEV_RESET; 758 new = 1; 759 snprintf(sdev->bustgtlun, 32, "%s:%d:%d", 760 device_xname(sc->sc_fd.dev), 761 sdev->target->target_id, 762 sdev->lun_id); 763 if (!sc->sc_lwp) 764 if (kthread_create( 765 PRI_NONE, KTHREAD_MPSAFE, NULL, 766 sbp_scsipi_scan_target, &sc->sc_target, 767 &sc->sc_lwp, 768 "sbp%d_attach", device_unit(sc->sc_fd.dev))) 769 aprint_error_dev(sc->sc_fd.dev, 770 "unable to create thread"); 771 } 772 sdev->flags |= VALID_LUN; 773 sdev->type = (reg->val & 0xff0000) >> 16; 774 775 if (new == 0) 776 goto next; 777 778 fwdma_alloc_setup(sc->sc_fd.dev, sc->sc_dmat, SBP_DMA_SIZE, 779 &sdev->dma, sizeof(uint32_t), BUS_DMA_NOWAIT); 780 if (sdev->dma.v_addr == NULL) { 781 free(sdev, M_SBP); 782 target->luns[lun] = NULL; 783 goto next; 784 } 785 sdev->ocb = (struct sbp_ocb *)sdev->dma.v_addr; 786 sdev->login = (struct sbp_login_res *)&sdev->ocb[SBP_QUEUE_LEN]; 787 memset((char *)sdev->ocb, 0, 788 sizeof(struct sbp_ocb) * SBP_QUEUE_LEN); 789 790 STAILQ_INIT(&sdev->free_ocbs); 791 for (i = 0; i < SBP_QUEUE_LEN; i++) { 792 struct sbp_ocb *ocb = &sdev->ocb[i]; 793 794 ocb->index = i; 795 ocb->bus_addr = 796 sdev->dma.bus_addr + sizeof(struct sbp_ocb) * i; 797 if (bus_dmamap_create(sc->sc_dmat, 0x100000, 798 SBP_IND_MAX, SBP_SEG_MAX, 0, 0, &ocb->dmamap)) { 799 aprint_error_dev(sc->sc_fd.dev, 800 "cannot create dmamap %d\n", i); 801 /* XXX */ 802 goto next; 803 } 804 sbp_free_ocb(sdev, ocb); /* into free queue */ 805 } 806 next: 807 crom_next(&cc); 808 } 809 810 for (lun = 0; lun < target->num_lun; lun++) { 811 sdev = target->luns[lun]; 812 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) { 813 sbp_scsipi_detach_sdev(sdev); 814 sbp_free_sdev(sdev); 815 target->luns[lun] = NULL; 816 } 817 } 818 } 819 820 static struct sbp_target * 821 sbp_alloc_target(struct sbp_softc *sc, struct fw_device *fwdev) 822 { 823 struct sbp_target *target; 824 struct crom_context cc; 825 struct csrreg *reg; 826 827 SBP_DEBUG(1) 828 printf("sbp_alloc_target\n"); 829 END_DEBUG 830 /* new target */ 831 target = &sc->sc_target; 832 target->sbp = sc; 833 target->fwdev = fwdev; 834 target->target_id = 0; 835 target->mgm_ocb_cur = NULL; 836 SBP_DEBUG(1) 837 printf("target: mgm_port: %x\n", target->mgm_lo); 838 END_DEBUG 839 STAILQ_INIT(&target->xferlist); 840 target->n_xfer = 0; 841 STAILQ_INIT(&target->mgm_ocb_queue); 842 callout_init(&target->mgm_ocb_timeout, CALLOUT_MPSAFE); 843 844 target->luns = NULL; 845 target->num_lun = 0; 846 847 /* XXX we may want to reload mgm port after each bus reset */ 848 /* XXX there might be multiple management agents */ 849 crom_init_context(&cc, target->fwdev->csrrom); 850 reg = crom_search_key(&cc, CROM_MGM); 851 if (reg == NULL || reg->val == 0) { 852 aprint_error_dev(sc->sc_fd.dev, "NULL management address\n"); 853 target->fwdev = NULL; 854 return NULL; 855 } 856 857 target->mgm_hi = 0xffff; 858 target->mgm_lo = 0xf0000000 | (reg->val << 2); 859 860 return target; 861 } 862 863 static void 864 sbp_probe_lun(struct sbp_dev *sdev) 865 { 866 struct fw_device *fwdev; 867 struct crom_context c, *cc = &c; 868 struct csrreg *reg; 869 870 memset(sdev->vendor, 0, sizeof(sdev->vendor)); 871 memset(sdev->product, 0, sizeof(sdev->product)); 872 873 fwdev = sdev->target->fwdev; 874 crom_init_context(cc, fwdev->csrrom); 875 /* get vendor string */ 876 crom_search_key(cc, CSRKEY_VENDOR); 877 crom_next(cc); 878 crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor)); 879 /* skip to the unit directory for SBP-2 */ 880 while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) { 881 if (reg->val == CSRVAL_T10SBP2) 882 break; 883 crom_next(cc); 884 } 885 /* get firmware revision */ 886 reg = crom_search_key(cc, CSRKEY_FIRM_VER); 887 if (reg != NULL) 888 snprintf(sdev->revision, sizeof(sdev->revision), "%06x", 889 reg->val); 890 /* get product string */ 891 crom_search_key(cc, CSRKEY_MODEL); 892 crom_next(cc); 893 crom_parse_text(cc, sdev->product, sizeof(sdev->product)); 894 } 895 896 static void 897 sbp_login_callout(void *arg) 898 { 899 struct sbp_dev *sdev = (struct sbp_dev *)arg; 900 901 sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL); 902 } 903 904 static void 905 sbp_login(struct sbp_dev *sdev) 906 { 907 struct sbp_softc *sc = sdev->target->sbp; 908 struct timeval delta; 909 struct timeval t; 910 int ticks = 0; 911 912 microtime(&delta); 913 timersub(&delta, &sc->sc_last_busreset, &delta); 914 t.tv_sec = login_delay / 1000; 915 t.tv_usec = (login_delay % 1000) * 1000; 916 timersub(&t, &delta, &t); 917 if (t.tv_sec >= 0 && t.tv_usec > 0) 918 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000; 919 SBP_DEBUG(0) 920 printf("%s: sec = %lld usec = %ld ticks = %d\n", __func__, 921 (long long)t.tv_sec, (long)t.tv_usec, ticks); 922 END_DEBUG 923 callout_schedule(&sdev->login_callout, ticks); 924 } 925 926 static void 927 sbp_probe_target(void *arg) 928 { 929 struct sbp_target *target = (struct sbp_target *)arg; 930 struct sbp_dev *sdev; 931 int i; 932 933 SBP_DEBUG(1) 934 printf("%s %d\n", __func__, target->target_id); 935 END_DEBUG 936 937 sbp_alloc_lun(target); 938 939 /* XXX untimeout mgm_ocb and dequeue */ 940 for (i = 0; i < target->num_lun; i++) { 941 sdev = target->luns[i]; 942 if (sdev == NULL || sdev->status == SBP_DEV_DEAD) 943 continue; 944 945 if (sdev->periph != NULL) { 946 scsipi_periph_freeze(sdev->periph, 1); 947 sdev->freeze++; 948 } 949 sbp_probe_lun(sdev); 950 sbp_show_sdev_info(sdev); 951 952 sbp_abort_all_ocbs(sdev, XS_RESET); 953 switch (sdev->status) { 954 case SBP_DEV_RESET: 955 /* new or revived target */ 956 if (auto_login) 957 sbp_login(sdev); 958 break; 959 case SBP_DEV_TOATTACH: 960 case SBP_DEV_PROBE: 961 case SBP_DEV_ATTACHED: 962 case SBP_DEV_RETRY: 963 default: 964 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL); 965 break; 966 } 967 } 968 } 969 970 static void 971 sbp_post_busreset(void *arg) 972 { 973 struct sbp_softc *sc = (struct sbp_softc *)arg; 974 struct sbp_target *target = &sc->sc_target; 975 struct fw_device *fwdev = target->fwdev; 976 int alive; 977 978 alive = SBP_FWDEV_ALIVE(fwdev); 979 SBP_DEBUG(0) 980 printf("sbp_post_busreset\n"); 981 if (!alive) 982 printf("not alive\n"); 983 END_DEBUG 984 microtime(&sc->sc_last_busreset); 985 986 if (!alive) 987 return; 988 989 scsipi_channel_freeze(&sc->sc_channel, 1); 990 } 991 992 static void 993 sbp_post_explore(void *arg) 994 { 995 struct sbp_softc *sc = (struct sbp_softc *)arg; 996 struct sbp_target *target = &sc->sc_target; 997 struct fw_device *fwdev = target->fwdev; 998 int alive; 999 1000 alive = SBP_FWDEV_ALIVE(fwdev); 1001 SBP_DEBUG(0) 1002 printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold); 1003 if (!alive) 1004 printf("not alive\n"); 1005 END_DEBUG 1006 if (!alive) 1007 return; 1008 1009 if (!firewire_phydma_enable) 1010 return; 1011 1012 if (sbp_cold > 0) 1013 sbp_cold--; 1014 1015 SBP_DEBUG(0) 1016 printf("sbp_post_explore: EUI:%08x%08x ", fwdev->eui.hi, fwdev->eui.lo); 1017 END_DEBUG 1018 sbp_probe_target((void *)target); 1019 if (target->num_lun == 0) 1020 sbp_free_target(target); 1021 1022 scsipi_channel_thaw(&sc->sc_channel, 1); 1023 } 1024 1025 #if NEED_RESPONSE 1026 static void 1027 sbp_loginres_callback(struct fw_xfer *xfer) 1028 { 1029 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1030 struct sbp_softc *sc = sdev->target->sbp; 1031 1032 SBP_DEBUG(1) 1033 printf("sbp_loginres_callback\n"); 1034 END_DEBUG 1035 /* recycle */ 1036 mutex_enter(&sc->sc_fwb.fwb_mtx); 1037 STAILQ_INSERT_TAIL(&sc->sc_fwb.xferlist, xfer, link); 1038 mutex_exit(&sc->sc_fwb.fwb_mtx); 1039 return; 1040 } 1041 #endif 1042 1043 static inline void 1044 sbp_xfer_free(struct fw_xfer *xfer) 1045 { 1046 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1047 struct sbp_softc *sc = sdev->target->sbp; 1048 1049 fw_xfer_unload(xfer); 1050 mutex_enter(&sc->sc_mtx); 1051 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link); 1052 mutex_exit(&sc->sc_mtx); 1053 } 1054 1055 static void 1056 sbp_reset_start_callback(struct fw_xfer *xfer) 1057 { 1058 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc; 1059 struct sbp_target *target = sdev->target; 1060 int i; 1061 1062 if (xfer->resp != 0) 1063 aprint_error("%s: sbp_reset_start failed: resp=%d\n", 1064 sdev->bustgtlun, xfer->resp); 1065 1066 for (i = 0; i < target->num_lun; i++) { 1067 tsdev = target->luns[i]; 1068 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN) 1069 sbp_login(tsdev); 1070 } 1071 } 1072 1073 static void 1074 sbp_reset_start(struct sbp_dev *sdev) 1075 { 1076 struct fw_xfer *xfer; 1077 struct fw_pkt *fp; 1078 1079 SBP_DEBUG(0) 1080 printf("%s: sbp_reset_start: %s\n", 1081 device_xname(sdev->target->sbp->sc_fd.dev), sdev->bustgtlun); 1082 END_DEBUG 1083 1084 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 1085 if (xfer == NULL) 1086 return; 1087 xfer->hand = sbp_reset_start_callback; 1088 fp = &xfer->send.hdr; 1089 fp->mode.wreqq.dest_hi = 0xffff; 1090 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START; 1091 fp->mode.wreqq.data = htonl(0xf); 1092 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1093 sbp_xfer_free(xfer); 1094 } 1095 1096 static void 1097 sbp_mgm_callback(struct fw_xfer *xfer) 1098 { 1099 struct sbp_dev *sdev; 1100 1101 sdev = (struct sbp_dev *)xfer->sc; 1102 1103 SBP_DEBUG(1) 1104 printf("%s: sbp_mgm_callback: %s\n", 1105 device_xname(sdev->target->sbp->sc_fd.dev), sdev->bustgtlun); 1106 END_DEBUG 1107 sbp_xfer_free(xfer); 1108 return; 1109 } 1110 1111 static void 1112 sbp_scsipi_scan_target(void *arg) 1113 { 1114 struct sbp_target *target = (struct sbp_target *)arg; 1115 struct sbp_softc *sc = target->sbp; 1116 struct sbp_dev *sdev; 1117 struct scsipi_channel *chan = &sc->sc_channel; 1118 struct scsibus_softc *sc_bus = device_private(sc->sc_bus); 1119 int lun, yet; 1120 1121 do { 1122 mutex_enter(&sc->sc_mtx); 1123 cv_wait_sig(&sc->sc_cv, &sc->sc_mtx); 1124 mutex_exit(&sc->sc_mtx); 1125 yet = 0; 1126 1127 for (lun = 0; lun < target->num_lun; lun++) { 1128 sdev = target->luns[lun]; 1129 if (sdev == NULL) 1130 continue; 1131 if (sdev->status != SBP_DEV_PROBE) { 1132 yet++; 1133 continue; 1134 } 1135 1136 if (sdev->periph == NULL) { 1137 if (chan->chan_nluns < target->num_lun) 1138 chan->chan_nluns = target->num_lun; 1139 1140 scsi_probe_bus(sc_bus, target->target_id, 1141 sdev->lun_id); 1142 sdev->periph = scsipi_lookup_periph(chan, 1143 target->target_id, lun); 1144 } 1145 sdev->status = SBP_DEV_ATTACHED; 1146 } 1147 } while (yet > 0); 1148 1149 sc->sc_lwp = NULL; 1150 kthread_exit(0); 1151 1152 /* NOTREACHED */ 1153 } 1154 1155 static inline void 1156 sbp_scan_dev(struct sbp_dev *sdev) 1157 { 1158 struct sbp_softc *sc = sdev->target->sbp; 1159 1160 sdev->status = SBP_DEV_PROBE; 1161 mutex_enter(&sc->sc_mtx); 1162 cv_signal(&sdev->target->sbp->sc_cv); 1163 mutex_exit(&sc->sc_mtx); 1164 } 1165 1166 1167 static void 1168 sbp_do_attach(struct fw_xfer *xfer) 1169 { 1170 struct sbp_dev *sdev; 1171 struct sbp_target *target; 1172 struct sbp_softc *sc; 1173 1174 sdev = (struct sbp_dev *)xfer->sc; 1175 target = sdev->target; 1176 sc = target->sbp; 1177 1178 SBP_DEBUG(0) 1179 printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, 1180 sdev->bustgtlun); 1181 END_DEBUG 1182 sbp_xfer_free(xfer); 1183 1184 sbp_scan_dev(sdev); 1185 return; 1186 } 1187 1188 static void 1189 sbp_agent_reset_callback(struct fw_xfer *xfer) 1190 { 1191 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1192 struct sbp_softc *sc = sdev->target->sbp; 1193 1194 SBP_DEBUG(1) 1195 printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, 1196 sdev->bustgtlun); 1197 END_DEBUG 1198 if (xfer->resp != 0) 1199 aprint_error_dev(sc->sc_fd.dev, "%s:%s: resp=%d\n", __func__, 1200 sdev->bustgtlun, xfer->resp); 1201 1202 sbp_xfer_free(xfer); 1203 if (sdev->periph != NULL) { 1204 scsipi_periph_thaw(sdev->periph, sdev->freeze); 1205 scsipi_channel_thaw(&sc->sc_channel, 0); 1206 sdev->freeze = 0; 1207 } 1208 } 1209 1210 static void 1211 sbp_agent_reset(struct sbp_dev *sdev) 1212 { 1213 struct fw_xfer *xfer; 1214 struct fw_pkt *fp; 1215 1216 SBP_DEBUG(0) 1217 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1218 __func__, sdev->bustgtlun); 1219 END_DEBUG 1220 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04); 1221 if (xfer == NULL) 1222 return; 1223 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE) 1224 xfer->hand = sbp_agent_reset_callback; 1225 else 1226 xfer->hand = sbp_do_attach; 1227 fp = &xfer->send.hdr; 1228 fp->mode.wreqq.data = htonl(0xf); 1229 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1230 sbp_xfer_free(xfer); 1231 sbp_abort_all_ocbs(sdev, XS_RESET); 1232 } 1233 1234 static void 1235 sbp_busy_timeout_callback(struct fw_xfer *xfer) 1236 { 1237 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1238 1239 SBP_DEBUG(1) 1240 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1241 __func__, sdev->bustgtlun); 1242 END_DEBUG 1243 sbp_xfer_free(xfer); 1244 sbp_agent_reset(sdev); 1245 } 1246 1247 static void 1248 sbp_busy_timeout(struct sbp_dev *sdev) 1249 { 1250 struct fw_pkt *fp; 1251 struct fw_xfer *xfer; 1252 1253 SBP_DEBUG(0) 1254 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1255 __func__, sdev->bustgtlun); 1256 END_DEBUG 1257 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 1258 if (xfer == NULL) 1259 return; 1260 xfer->hand = sbp_busy_timeout_callback; 1261 fp = &xfer->send.hdr; 1262 fp->mode.wreqq.dest_hi = 0xffff; 1263 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT; 1264 fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf); 1265 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1266 sbp_xfer_free(xfer); 1267 } 1268 1269 static void 1270 sbp_orb_pointer_callback(struct fw_xfer *xfer) 1271 { 1272 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1273 struct sbp_softc *sc = sdev->target->sbp; 1274 1275 SBP_DEBUG(1) 1276 printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, 1277 sdev->bustgtlun); 1278 END_DEBUG 1279 if (xfer->resp != 0) 1280 aprint_error_dev(sc->sc_fd.dev, "%s:%s: xfer->resp = %d\n", 1281 __func__, sdev->bustgtlun, xfer->resp); 1282 sbp_xfer_free(xfer); 1283 sdev->flags &= ~ORB_POINTER_ACTIVE; 1284 1285 if ((sdev->flags & ORB_POINTER_NEED) != 0) { 1286 struct sbp_ocb *ocb; 1287 1288 sdev->flags &= ~ORB_POINTER_NEED; 1289 ocb = STAILQ_FIRST(&sdev->ocbs); 1290 if (ocb != NULL) 1291 sbp_orb_pointer(sdev, ocb); 1292 } 1293 return; 1294 } 1295 1296 static void 1297 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb) 1298 { 1299 struct sbp_softc *sc = sdev->target->sbp; 1300 struct fw_xfer *xfer; 1301 struct fw_pkt *fp; 1302 1303 SBP_DEBUG(1) 1304 printf("%s:%s:%s: 0x%08x\n", device_xname(sc->sc_fd.dev), __func__, 1305 sdev->bustgtlun, (uint32_t)ocb->bus_addr); 1306 END_DEBUG 1307 1308 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) { 1309 SBP_DEBUG(0) 1310 printf("%s: orb pointer active\n", __func__); 1311 END_DEBUG 1312 sdev->flags |= ORB_POINTER_NEED; 1313 return; 1314 } 1315 1316 sdev->flags |= ORB_POINTER_ACTIVE; 1317 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08); 1318 if (xfer == NULL) 1319 return; 1320 xfer->hand = sbp_orb_pointer_callback; 1321 1322 fp = &xfer->send.hdr; 1323 fp->mode.wreqb.len = 8; 1324 fp->mode.wreqb.extcode = 0; 1325 xfer->send.payload[0] = 1326 htonl(((sc->sc_fd.fc->nodeid | FWLOCALBUS) << 16)); 1327 xfer->send.payload[1] = htonl((uint32_t)ocb->bus_addr); 1328 1329 if (fw_asyreq(xfer->fc, -1, xfer) != 0) { 1330 sbp_xfer_free(xfer); 1331 ocb->xs->error = XS_DRIVER_STUFFUP; 1332 scsipi_done(ocb->xs); 1333 } 1334 } 1335 1336 static void 1337 sbp_doorbell_callback(struct fw_xfer *xfer) 1338 { 1339 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1340 struct sbp_softc *sc = sdev->target->sbp; 1341 1342 SBP_DEBUG(1) 1343 printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, 1344 sdev->bustgtlun); 1345 END_DEBUG 1346 if (xfer->resp != 0) { 1347 aprint_error_dev(sc->sc_fd.dev, "%s: xfer->resp = %d\n", 1348 __func__, xfer->resp); 1349 } 1350 sbp_xfer_free(xfer); 1351 sdev->flags &= ~ORB_DOORBELL_ACTIVE; 1352 if ((sdev->flags & ORB_DOORBELL_NEED) != 0) { 1353 sdev->flags &= ~ORB_DOORBELL_NEED; 1354 sbp_doorbell(sdev); 1355 } 1356 return; 1357 } 1358 1359 static void 1360 sbp_doorbell(struct sbp_dev *sdev) 1361 { 1362 struct fw_xfer *xfer; 1363 struct fw_pkt *fp; 1364 1365 SBP_DEBUG(1) 1366 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1367 __func__, sdev->bustgtlun); 1368 END_DEBUG 1369 1370 if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) { 1371 sdev->flags |= ORB_DOORBELL_NEED; 1372 return; 1373 } 1374 sdev->flags |= ORB_DOORBELL_ACTIVE; 1375 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10); 1376 if (xfer == NULL) 1377 return; 1378 xfer->hand = sbp_doorbell_callback; 1379 fp = &xfer->send.hdr; 1380 fp->mode.wreqq.data = htonl(0xf); 1381 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1382 sbp_xfer_free(xfer); 1383 } 1384 1385 static struct fw_xfer * 1386 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset) 1387 { 1388 struct sbp_softc *sc; 1389 struct fw_xfer *xfer; 1390 struct fw_pkt *fp; 1391 struct sbp_target *target; 1392 int new = 0; 1393 1394 target = sdev->target; 1395 sc = target->sbp; 1396 mutex_enter(&sc->sc_mtx); 1397 xfer = STAILQ_FIRST(&target->xferlist); 1398 if (xfer == NULL) { 1399 if (target->n_xfer > 5 /* XXX */) { 1400 aprint_error_dev(sc->sc_fd.dev, 1401 "no more xfer for this target\n"); 1402 mutex_exit(&sc->sc_mtx); 1403 return NULL; 1404 } 1405 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0); 1406 if (xfer == NULL) { 1407 aprint_error_dev(sc->sc_fd.dev, 1408 "fw_xfer_alloc_buf failed\n"); 1409 mutex_exit(&sc->sc_mtx); 1410 return NULL; 1411 } 1412 target->n_xfer++; 1413 SBP_DEBUG(0) 1414 printf("sbp: alloc %d xfer\n", target->n_xfer); 1415 END_DEBUG 1416 new = 1; 1417 } else 1418 STAILQ_REMOVE_HEAD(&target->xferlist, link); 1419 mutex_exit(&sc->sc_mtx); 1420 1421 microtime(&xfer->tv); 1422 1423 if (new) { 1424 xfer->recv.pay_len = 0; 1425 xfer->send.spd = uimin(target->fwdev->speed, max_speed); 1426 xfer->fc = target->sbp->sc_fd.fc; 1427 } 1428 1429 if (tcode == FWTCODE_WREQB) 1430 xfer->send.pay_len = 8; 1431 else 1432 xfer->send.pay_len = 0; 1433 1434 xfer->sc = (void *)sdev; 1435 fp = &xfer->send.hdr; 1436 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi; 1437 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset; 1438 fp->mode.wreqq.tlrt = 0; 1439 fp->mode.wreqq.tcode = tcode; 1440 fp->mode.wreqq.pri = 0; 1441 fp->mode.wreqq.dst = FWLOCALBUS | target->fwdev->dst; 1442 1443 return xfer; 1444 } 1445 1446 static void 1447 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb) 1448 { 1449 struct fw_xfer *xfer; 1450 struct fw_pkt *fp; 1451 struct sbp_ocb *ocb; 1452 struct sbp_target *target; 1453 int nid, dv_unit; 1454 1455 target = sdev->target; 1456 nid = target->sbp->sc_fd.fc->nodeid | FWLOCALBUS; 1457 dv_unit = device_unit(target->sbp->sc_fd.dev); 1458 1459 mutex_enter(&target->sbp->sc_mtx); 1460 if (func == ORB_FUN_RUNQUEUE) { 1461 ocb = STAILQ_FIRST(&target->mgm_ocb_queue); 1462 if (target->mgm_ocb_cur != NULL || ocb == NULL) { 1463 mutex_exit(&target->sbp->sc_mtx); 1464 return; 1465 } 1466 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb); 1467 mutex_exit(&target->sbp->sc_mtx); 1468 goto start; 1469 } 1470 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 1471 mutex_exit(&target->sbp->sc_mtx); 1472 /* XXX */ 1473 return; 1474 } 1475 mutex_exit(&target->sbp->sc_mtx); 1476 ocb->flags = OCB_ACT_MGM; 1477 ocb->sdev = sdev; 1478 1479 memset(ocb->orb, 0, sizeof(ocb->orb)); 1480 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI); 1481 ocb->orb[7] = htonl(SBP_DEV2ADDR(dv_unit, sdev->lun_id)); 1482 1483 SBP_DEBUG(0) 1484 printf("%s:%s:%s: %s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1485 __func__, sdev->bustgtlun, orb_fun_name[(func>>16)&0xf]); 1486 END_DEBUG 1487 switch (func) { 1488 case ORB_FUN_LGI: 1489 { 1490 const off_t sbp_login_off = 1491 sizeof(struct sbp_ocb) * SBP_QUEUE_LEN; 1492 1493 ocb->orb[0] = ocb->orb[1] = 0; /* password */ 1494 ocb->orb[2] = htonl(nid << 16); 1495 ocb->orb[3] = htonl(sdev->dma.bus_addr + sbp_login_off); 1496 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id); 1497 if (ex_login) 1498 ocb->orb[4] |= htonl(ORB_EXV); 1499 ocb->orb[5] = htonl(SBP_LOGIN_SIZE); 1500 bus_dmamap_sync(sdev->dma.dma_tag, sdev->dma.dma_map, 1501 sbp_login_off, SBP_LOGIN_SIZE, BUS_DMASYNC_PREREAD); 1502 break; 1503 } 1504 1505 case ORB_FUN_ATA: 1506 ocb->orb[0] = htonl((0 << 16) | 0); 1507 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff); 1508 /* fall through */ 1509 case ORB_FUN_RCN: 1510 case ORB_FUN_LGO: 1511 case ORB_FUN_LUR: 1512 case ORB_FUN_RST: 1513 case ORB_FUN_ATS: 1514 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id); 1515 break; 1516 } 1517 1518 if (target->mgm_ocb_cur != NULL) { 1519 /* there is a standing ORB */ 1520 mutex_enter(&target->sbp->sc_mtx); 1521 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb); 1522 mutex_exit(&target->sbp->sc_mtx); 1523 return; 1524 } 1525 start: 1526 target->mgm_ocb_cur = ocb; 1527 1528 callout_reset(&target->mgm_ocb_timeout, 5 * hz, sbp_mgm_timeout, ocb); 1529 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0); 1530 if (xfer == NULL) 1531 return; 1532 xfer->hand = sbp_mgm_callback; 1533 1534 fp = &xfer->send.hdr; 1535 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi; 1536 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo; 1537 fp->mode.wreqb.len = 8; 1538 fp->mode.wreqb.extcode = 0; 1539 xfer->send.payload[0] = htonl(nid << 16); 1540 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff); 1541 1542 /* cache writeback & invalidate(required ORB_FUN_LGI func) */ 1543 /* when abort_ocb, should sync POST ope ? */ 1544 SBP_ORB_DMA_SYNC(sdev->dma, ocb->index, BUS_DMASYNC_PREWRITE); 1545 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1546 sbp_xfer_free(xfer); 1547 } 1548 1549 static void 1550 sbp_print_scsi_cmd(struct sbp_ocb *ocb) 1551 { 1552 struct scsipi_xfer *xs = ocb->xs; 1553 1554 printf("%s:%d:%d:" 1555 " cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x," 1556 " flags: 0x%02x, %db cmd/%db data\n", 1557 device_xname(ocb->sdev->target->sbp->sc_fd.dev), 1558 xs->xs_periph->periph_target, 1559 xs->xs_periph->periph_lun, 1560 xs->cmd->opcode, 1561 xs->cmd->bytes[0], xs->cmd->bytes[1], 1562 xs->cmd->bytes[2], xs->cmd->bytes[3], 1563 xs->cmd->bytes[4], xs->cmd->bytes[5], 1564 xs->cmd->bytes[6], xs->cmd->bytes[7], 1565 xs->cmd->bytes[8], 1566 xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT), 1567 xs->cmdlen, xs->datalen); 1568 } 1569 1570 static void 1571 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb) 1572 { 1573 struct sbp_cmd_status *sbp_cmd_status; 1574 struct scsi_sense_data *sense = &ocb->xs->sense.scsi_sense; 1575 1576 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data; 1577 1578 SBP_DEBUG(0) 1579 sbp_print_scsi_cmd(ocb); 1580 /* XXX need decode status */ 1581 printf("%s:" 1582 " SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n", 1583 ocb->sdev->bustgtlun, 1584 sbp_cmd_status->status, 1585 sbp_cmd_status->sfmt, 1586 sbp_cmd_status->valid, 1587 sbp_cmd_status->s_key, 1588 sbp_cmd_status->s_code, 1589 sbp_cmd_status->s_qlfr, 1590 sbp_status->len); 1591 END_DEBUG 1592 1593 switch (sbp_cmd_status->status) { 1594 case SCSI_CHECK: 1595 case SCSI_BUSY: 1596 case SCSI_TERMINATED: 1597 if (sbp_cmd_status->sfmt == SBP_SFMT_CURR) 1598 sense->response_code = SSD_RCODE_CURRENT; 1599 else 1600 sense->response_code = SSD_RCODE_DEFERRED; 1601 if (sbp_cmd_status->valid) 1602 sense->response_code |= SSD_RCODE_VALID; 1603 sense->flags = sbp_cmd_status->s_key; 1604 if (sbp_cmd_status->mark) 1605 sense->flags |= SSD_FILEMARK; 1606 if (sbp_cmd_status->eom) 1607 sense->flags |= SSD_EOM; 1608 if (sbp_cmd_status->ill_len) 1609 sense->flags |= SSD_ILI; 1610 1611 memcpy(sense->info, &sbp_cmd_status->info, 4); 1612 1613 if (sbp_status->len <= 1) 1614 /* XXX not scsi status. shouldn't be happened */ 1615 sense->extra_len = 0; 1616 else if (sbp_status->len <= 4) 1617 /* add_sense_code(_qual), info, cmd_spec_info */ 1618 sense->extra_len = 6; 1619 else 1620 /* fru, sense_key_spec */ 1621 sense->extra_len = 10; 1622 1623 memcpy(sense->csi, &sbp_cmd_status->cdb, 4); 1624 1625 sense->asc = sbp_cmd_status->s_code; 1626 sense->ascq = sbp_cmd_status->s_qlfr; 1627 sense->fru = sbp_cmd_status->fru; 1628 1629 memcpy(sense->sks.sks_bytes, sbp_cmd_status->s_keydep, 3); 1630 ocb->xs->error = XS_SENSE; 1631 ocb->xs->xs_status = sbp_cmd_status->status; 1632 /* 1633 { 1634 uint8_t j, *tmp; 1635 tmp = sense; 1636 for (j = 0; j < 32; j += 8) 1637 aprint_normal( 1638 "sense %02x%02x %02x%02x %02x%02x %02x%02x\n", 1639 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3], 1640 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]); 1641 1642 } 1643 */ 1644 break; 1645 default: 1646 aprint_error_dev(ocb->sdev->target->sbp->sc_fd.dev, 1647 "%s:%s: unknown scsi status 0x%x\n", 1648 __func__, ocb->sdev->bustgtlun, sbp_cmd_status->status); 1649 } 1650 } 1651 1652 static void 1653 sbp_fix_inq_data(struct sbp_ocb *ocb) 1654 { 1655 struct scsipi_xfer *xs = ocb->xs; 1656 struct sbp_dev *sdev; 1657 struct scsipi_inquiry_data *inq = 1658 (struct scsipi_inquiry_data *)xs->data; 1659 1660 sdev = ocb->sdev; 1661 1662 #if 0 1663 /* 1664 * NetBSD is assuming always 0 for EVPD-bit and 'Page Code'. 1665 */ 1666 #define SI_EVPD 0x01 1667 if (xs->cmd->bytes[0] & SI_EVPD) 1668 return; 1669 #endif 1670 SBP_DEBUG(1) 1671 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1672 __func__, sdev->bustgtlun); 1673 END_DEBUG 1674 switch (inq->device & SID_TYPE) { 1675 case T_DIRECT: 1676 #if 0 1677 /* 1678 * XXX Convert Direct Access device to RBC. 1679 * I've never seen FireWire DA devices which support READ_6. 1680 */ 1681 if ((inq->device & SID_TYPE) == T_DIRECT) 1682 inq->device |= T_SIMPLE_DIRECT; /* T_DIRECT == 0 */ 1683 #endif 1684 /* FALLTHROUGH */ 1685 1686 case T_SIMPLE_DIRECT: 1687 /* 1688 * Override vendor/product/revision information. 1689 * Some devices sometimes return strange strings. 1690 */ 1691 #if 1 1692 memcpy(inq->vendor, sdev->vendor, sizeof(inq->vendor)); 1693 memcpy(inq->product, sdev->product, sizeof(inq->product)); 1694 memcpy(inq->revision + 2, sdev->revision, 1695 sizeof(inq->revision)); 1696 #endif 1697 break; 1698 } 1699 /* 1700 * Force to enable/disable tagged queuing. 1701 * XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page. 1702 */ 1703 if (sbp_tags > 0) 1704 inq->flags3 |= SID_CmdQue; 1705 else if (sbp_tags < 0) 1706 inq->flags3 &= ~SID_CmdQue; 1707 1708 } 1709 1710 static void 1711 sbp_recv(struct fw_xfer *xfer) 1712 { 1713 struct fw_pkt *rfp; 1714 #if NEED_RESPONSE 1715 struct fw_pkt *sfp; 1716 #endif 1717 struct sbp_softc *sc; 1718 struct sbp_dev *sdev; 1719 struct sbp_ocb *ocb; 1720 struct sbp_login_res *login_res = NULL; 1721 struct sbp_status *sbp_status; 1722 struct sbp_target *target; 1723 int orb_fun, status_valid0, status_valid, l, reset_agent = 0; 1724 uint32_t addr; 1725 /* 1726 uint32_t *ld; 1727 ld = xfer->recv.buf; 1728 printf("sbp %x %d %d %08x %08x %08x %08x\n", 1729 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1730 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1731 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11])); 1732 */ 1733 1734 sc = (struct sbp_softc *)xfer->sc; 1735 if (xfer->resp != 0) { 1736 aprint_error_dev(sc->sc_fd.dev, 1737 "sbp_recv: xfer->resp = %d\n", xfer->resp); 1738 goto done0; 1739 } 1740 if (xfer->recv.payload == NULL) { 1741 aprint_error_dev(sc->sc_fd.dev, 1742 "sbp_recv: xfer->recv.payload == NULL\n"); 1743 goto done0; 1744 } 1745 rfp = &xfer->recv.hdr; 1746 if (rfp->mode.wreqb.tcode != FWTCODE_WREQB) { 1747 aprint_error_dev(sc->sc_fd.dev, 1748 "sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode); 1749 goto done0; 1750 } 1751 sbp_status = (struct sbp_status *)xfer->recv.payload; 1752 addr = rfp->mode.wreqb.dest_lo; 1753 SBP_DEBUG(2) 1754 printf("received address 0x%x\n", addr); 1755 END_DEBUG 1756 target = &sc->sc_target; 1757 l = SBP_ADDR2LUN(addr); 1758 if (l >= target->num_lun || target->luns[l] == NULL) { 1759 aprint_error_dev(sc->sc_fd.dev, 1760 "sbp_recv1: invalid lun %d (target=%d)\n", 1761 l, target->target_id); 1762 goto done0; 1763 } 1764 sdev = target->luns[l]; 1765 1766 ocb = NULL; 1767 switch (sbp_status->src) { 1768 case SRC_NEXT_EXISTS: 1769 case SRC_NO_NEXT: 1770 /* check mgm_ocb_cur first */ 1771 ocb = target->mgm_ocb_cur; 1772 if (ocb != NULL) 1773 if (OCB_MATCH(ocb, sbp_status)) { 1774 callout_stop(&target->mgm_ocb_timeout); 1775 target->mgm_ocb_cur = NULL; 1776 break; 1777 } 1778 ocb = sbp_dequeue_ocb(sdev, sbp_status); 1779 if (ocb == NULL) 1780 aprint_error_dev(sc->sc_fd.dev, 1781 "%s:%s: No ocb(%x) on the queue\n", __func__, 1782 sdev->bustgtlun, ntohl(sbp_status->orb_lo)); 1783 break; 1784 case SRC_UNSOL: 1785 /* unsolicit */ 1786 aprint_error_dev(sc->sc_fd.dev, 1787 "%s:%s: unsolicit status received\n", 1788 __func__, sdev->bustgtlun); 1789 break; 1790 default: 1791 aprint_error_dev(sc->sc_fd.dev, 1792 "%s:%s: unknown sbp_status->src\n", 1793 __func__, sdev->bustgtlun); 1794 } 1795 1796 status_valid0 = (sbp_status->src < 2 1797 && sbp_status->resp == SBP_REQ_CMP 1798 && sbp_status->dead == 0); 1799 status_valid = (status_valid0 && sbp_status->status == 0); 1800 1801 if (!status_valid0 || debug > 2) { 1802 int status; 1803 SBP_DEBUG(0) 1804 printf("%s:%s:%s: ORB status src:%x resp:%x dead:%x" 1805 " len:%x stat:%x orb:%x%08x\n", 1806 device_xname(sc->sc_fd.dev), __func__, sdev->bustgtlun, 1807 sbp_status->src, sbp_status->resp, sbp_status->dead, 1808 sbp_status->len, sbp_status->status, 1809 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo)); 1810 END_DEBUG 1811 printf("%s:%s\n", device_xname(sc->sc_fd.dev), sdev->bustgtlun); 1812 status = sbp_status->status; 1813 switch (sbp_status->resp) { 1814 case SBP_REQ_CMP: 1815 if (status > MAX_ORB_STATUS0) 1816 printf("%s\n", orb_status0[MAX_ORB_STATUS0]); 1817 else 1818 printf("%s\n", orb_status0[status]); 1819 break; 1820 case SBP_TRANS_FAIL: 1821 printf("Obj: %s, Error: %s\n", 1822 orb_status1_object[(status>>6) & 3], 1823 orb_status1_serial_bus_error[status & 0xf]); 1824 break; 1825 case SBP_ILLE_REQ: 1826 printf("Illegal request\n"); 1827 break; 1828 case SBP_VEND_DEP: 1829 printf("Vendor dependent\n"); 1830 break; 1831 default: 1832 printf("unknown response code %d\n", sbp_status->resp); 1833 } 1834 } 1835 1836 /* we have to reset the fetch agent if it's dead */ 1837 if (sbp_status->dead) { 1838 if (sdev->periph != NULL) { 1839 scsipi_periph_freeze(sdev->periph, 1); 1840 sdev->freeze++; 1841 } 1842 reset_agent = 1; 1843 } 1844 1845 if (ocb == NULL) 1846 goto done; 1847 1848 switch (ntohl(ocb->orb[4]) & ORB_FMT_MSK) { 1849 case ORB_FMT_NOP: 1850 break; 1851 case ORB_FMT_VED: 1852 break; 1853 case ORB_FMT_STD: 1854 switch (ocb->flags) { 1855 case OCB_ACT_MGM: 1856 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK; 1857 reset_agent = 0; 1858 switch (orb_fun) { 1859 case ORB_FUN_LGI: 1860 { 1861 const struct fwdma_alloc *dma = &sdev->dma; 1862 const off_t sbp_login_off = 1863 sizeof(struct sbp_ocb) * SBP_QUEUE_LEN; 1864 1865 bus_dmamap_sync(dma->dma_tag, dma->dma_map, 1866 sbp_login_off, SBP_LOGIN_SIZE, 1867 BUS_DMASYNC_POSTREAD); 1868 login_res = sdev->login; 1869 login_res->len = ntohs(login_res->len); 1870 login_res->id = ntohs(login_res->id); 1871 login_res->cmd_hi = ntohs(login_res->cmd_hi); 1872 login_res->cmd_lo = ntohl(login_res->cmd_lo); 1873 if (status_valid) { 1874 SBP_DEBUG(0) 1875 printf("%s:%s:%s: login:" 1876 " len %d, ID %d, cmd %08x%08x," 1877 " recon_hold %d\n", 1878 device_xname(sc->sc_fd.dev), 1879 __func__, sdev->bustgtlun, 1880 login_res->len, login_res->id, 1881 login_res->cmd_hi, 1882 login_res->cmd_lo, 1883 ntohs(login_res->recon_hold)); 1884 END_DEBUG 1885 sbp_busy_timeout(sdev); 1886 } else { 1887 /* forgot logout? */ 1888 aprint_error_dev(sc->sc_fd.dev, 1889 "%s:%s: login failed\n", 1890 __func__, sdev->bustgtlun); 1891 sdev->status = SBP_DEV_RESET; 1892 } 1893 break; 1894 } 1895 case ORB_FUN_RCN: 1896 login_res = sdev->login; 1897 if (status_valid) { 1898 SBP_DEBUG(0) 1899 printf("%s:%s:%s: reconnect:" 1900 " len %d, ID %d, cmd %08x%08x\n", 1901 device_xname(sc->sc_fd.dev), 1902 __func__, sdev->bustgtlun, 1903 login_res->len, login_res->id, 1904 login_res->cmd_hi, 1905 login_res->cmd_lo); 1906 END_DEBUG 1907 sbp_agent_reset(sdev); 1908 } else { 1909 /* reconnection hold time exceed? */ 1910 SBP_DEBUG(0) 1911 aprint_error_dev(sc->sc_fd.dev, 1912 "%s:%s: reconnect failed\n", 1913 __func__, sdev->bustgtlun); 1914 END_DEBUG 1915 sbp_login(sdev); 1916 } 1917 break; 1918 case ORB_FUN_LGO: 1919 sdev->status = SBP_DEV_RESET; 1920 break; 1921 case ORB_FUN_RST: 1922 sbp_busy_timeout(sdev); 1923 break; 1924 case ORB_FUN_LUR: 1925 case ORB_FUN_ATA: 1926 case ORB_FUN_ATS: 1927 sbp_agent_reset(sdev); 1928 break; 1929 default: 1930 aprint_error_dev(sc->sc_fd.dev, 1931 "%s:%s: unknown function %d\n", 1932 __func__, sdev->bustgtlun, orb_fun); 1933 break; 1934 } 1935 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 1936 break; 1937 case OCB_ACT_CMD: 1938 sdev->timeout = 0; 1939 if (ocb->xs != NULL) { 1940 struct scsipi_xfer *xs = ocb->xs; 1941 1942 if (sbp_status->len > 1) 1943 sbp_scsi_status(sbp_status, ocb); 1944 else 1945 if (sbp_status->resp != SBP_REQ_CMP) 1946 xs->error = XS_DRIVER_STUFFUP; 1947 else { 1948 xs->error = XS_NOERROR; 1949 xs->resid = 0; 1950 } 1951 /* fix up inq data */ 1952 if (xs->cmd->opcode == INQUIRY) 1953 sbp_fix_inq_data(ocb); 1954 scsipi_done(xs); 1955 } 1956 break; 1957 default: 1958 break; 1959 } 1960 } 1961 1962 if (!use_doorbell) 1963 sbp_free_ocb(sdev, ocb); 1964 done: 1965 if (reset_agent) 1966 sbp_agent_reset(sdev); 1967 1968 done0: 1969 xfer->recv.pay_len = SBP_RECV_LEN; 1970 /* The received packet is usually small enough to be stored within 1971 * the buffer. In that case, the controller return ack_complete and 1972 * no response is necessary. 1973 * 1974 * XXX fwohci.c and firewire.c should inform event_code such as 1975 * ack_complete or ack_pending to upper driver. 1976 */ 1977 #if NEED_RESPONSE 1978 xfer->send.off = 0; 1979 sfp = (struct fw_pkt *)xfer->send.buf; 1980 sfp->mode.wres.dst = rfp->mode.wreqb.src; 1981 xfer->dst = sfp->mode.wres.dst; 1982 xfer->spd = uimin(sdev->target->fwdev->speed, max_speed); 1983 xfer->hand = sbp_loginres_callback; 1984 1985 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt; 1986 sfp->mode.wres.tcode = FWTCODE_WRES; 1987 sfp->mode.wres.rtcode = 0; 1988 sfp->mode.wres.pri = 0; 1989 1990 if (fw_asyreq(xfer->fc, -1, xfer) != 0) { 1991 aprint_error_dev(sc->sc_fd.dev, "mgm_orb failed\n"); 1992 mutex_enter(&sc->sc_fwb.fwb_mtx); 1993 STAILQ_INSERT_TAIL(&sc->sc_fwb.xferlist, xfer, link); 1994 mutex_exit(&sc->sc_fwb.fwb_mtx); 1995 } 1996 #else 1997 /* recycle */ 1998 mutex_enter(&sc->sc_fwb.fwb_mtx); 1999 STAILQ_INSERT_TAIL(&sc->sc_fwb.xferlist, xfer, link); 2000 mutex_exit(&sc->sc_fwb.fwb_mtx); 2001 #endif 2002 2003 return; 2004 2005 } 2006 2007 static int 2008 sbp_logout_all(struct sbp_softc *sbp) 2009 { 2010 struct sbp_target *target; 2011 struct sbp_dev *sdev; 2012 int i; 2013 2014 SBP_DEBUG(0) 2015 printf("sbp_logout_all\n"); 2016 END_DEBUG 2017 target = &sbp->sc_target; 2018 if (target->luns != NULL) { 2019 for (i = 0; i < target->num_lun; i++) { 2020 sdev = target->luns[i]; 2021 if (sdev == NULL) 2022 continue; 2023 callout_stop(&sdev->login_callout); 2024 if (sdev->status >= SBP_DEV_TOATTACH && 2025 sdev->status <= SBP_DEV_ATTACHED) 2026 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL); 2027 } 2028 } 2029 2030 return 0; 2031 } 2032 2033 static void 2034 sbp_free_sdev(struct sbp_dev *sdev) 2035 { 2036 struct sbp_softc *sc = sdev->target->sbp; 2037 int i; 2038 2039 if (sdev == NULL) 2040 return; 2041 for (i = 0; i < SBP_QUEUE_LEN; i++) 2042 bus_dmamap_destroy(sc->sc_dmat, sdev->ocb[i].dmamap); 2043 fwdma_free(sdev->dma.dma_tag, sdev->dma.dma_map, sdev->dma.v_addr); 2044 free(sdev, M_SBP); 2045 } 2046 2047 static void 2048 sbp_free_target(struct sbp_target *target) 2049 { 2050 struct fw_xfer *xfer, *next; 2051 int i; 2052 2053 if (target->luns == NULL) 2054 return; 2055 callout_stop(&target->mgm_ocb_timeout); 2056 for (i = 0; i < target->num_lun; i++) 2057 sbp_free_sdev(target->luns[i]); 2058 2059 for (xfer = STAILQ_FIRST(&target->xferlist); 2060 xfer != NULL; xfer = next) { 2061 next = STAILQ_NEXT(xfer, link); 2062 fw_xfer_free_buf(xfer); 2063 } 2064 STAILQ_INIT(&target->xferlist); 2065 free(target->luns, M_SBP); 2066 target->num_lun = 0; 2067 target->luns = NULL; 2068 target->fwdev = NULL; 2069 } 2070 2071 static void 2072 sbp_scsipi_detach_sdev(struct sbp_dev *sdev) 2073 { 2074 struct sbp_target *target; 2075 struct sbp_softc *sbp; 2076 2077 if (sdev == NULL) 2078 return; 2079 2080 target = sdev->target; 2081 if (target == NULL) 2082 return; 2083 2084 sbp = target->sbp; 2085 2086 if (sdev->status == SBP_DEV_DEAD) 2087 return; 2088 if (sdev->status == SBP_DEV_RESET) 2089 return; 2090 if (sdev->periph != NULL) { 2091 scsipi_periph_thaw(sdev->periph, sdev->freeze); 2092 scsipi_channel_thaw(&sbp->sc_channel, 0); /* XXXX */ 2093 sdev->freeze = 0; 2094 if (scsipi_target_detach(&sbp->sc_channel, 2095 target->target_id, sdev->lun_id, DETACH_FORCE) != 0) { 2096 aprint_error_dev(sbp->sc_fd.dev, "detach failed\n"); 2097 } 2098 sdev->periph = NULL; 2099 } 2100 sbp_abort_all_ocbs(sdev, XS_DRIVER_STUFFUP); 2101 } 2102 2103 static void 2104 sbp_scsipi_detach_target(struct sbp_target *target) 2105 { 2106 struct sbp_softc *sbp = target->sbp; 2107 int i; 2108 2109 if (target->luns != NULL) { 2110 SBP_DEBUG(0) 2111 printf("sbp_detach_target %d\n", target->target_id); 2112 END_DEBUG 2113 for (i = 0; i < target->num_lun; i++) 2114 sbp_scsipi_detach_sdev(target->luns[i]); 2115 if (config_detach(sbp->sc_bus, DETACH_FORCE) != 0) 2116 aprint_error_dev(sbp->sc_fd.dev, "%d detach failed\n", 2117 target->target_id); 2118 sbp->sc_bus = NULL; 2119 } 2120 } 2121 2122 static void 2123 sbp_target_reset(struct sbp_dev *sdev, int method) 2124 { 2125 struct sbp_target *target = sdev->target; 2126 struct sbp_dev *tsdev; 2127 int i; 2128 2129 for (i = 0; i < target->num_lun; i++) { 2130 tsdev = target->luns[i]; 2131 if (tsdev == NULL) 2132 continue; 2133 if (tsdev->status == SBP_DEV_DEAD) 2134 continue; 2135 if (tsdev->status == SBP_DEV_RESET) 2136 continue; 2137 if (sdev->periph != NULL) { 2138 scsipi_periph_freeze(tsdev->periph, 1); 2139 tsdev->freeze++; 2140 } 2141 sbp_abort_all_ocbs(tsdev, XS_TIMEOUT); 2142 if (method == 2) 2143 tsdev->status = SBP_DEV_LOGIN; 2144 } 2145 switch (method) { 2146 case 1: 2147 aprint_error("target reset\n"); 2148 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL); 2149 break; 2150 case 2: 2151 aprint_error("reset start\n"); 2152 sbp_reset_start(sdev); 2153 break; 2154 } 2155 } 2156 2157 static void 2158 sbp_mgm_timeout(void *arg) 2159 { 2160 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2161 struct sbp_dev *sdev = ocb->sdev; 2162 struct sbp_target *target = sdev->target; 2163 2164 aprint_error_dev(sdev->target->sbp->sc_fd.dev, 2165 "%s:%s: request timeout(mgm orb:0x%08x) ... ", 2166 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2167 target->mgm_ocb_cur = NULL; 2168 sbp_free_ocb(sdev, ocb); 2169 #if 0 2170 /* XXX */ 2171 aprint_error("run next request\n"); 2172 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 2173 #endif 2174 aprint_error_dev(sdev->target->sbp->sc_fd.dev, 2175 "%s:%s: reset start\n", __func__, sdev->bustgtlun); 2176 sbp_reset_start(sdev); 2177 } 2178 2179 static void 2180 sbp_timeout(void *arg) 2181 { 2182 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2183 struct sbp_dev *sdev = ocb->sdev; 2184 2185 aprint_error_dev(sdev->target->sbp->sc_fd.dev, 2186 "%s:%s: request timeout(cmd orb:0x%08x) ... ", 2187 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2188 2189 sdev->timeout++; 2190 switch (sdev->timeout) { 2191 case 1: 2192 aprint_error("agent reset\n"); 2193 if (sdev->periph != NULL) { 2194 scsipi_periph_freeze(sdev->periph, 1); 2195 sdev->freeze++; 2196 } 2197 sbp_abort_all_ocbs(sdev, XS_TIMEOUT); 2198 sbp_agent_reset(sdev); 2199 break; 2200 case 2: 2201 case 3: 2202 sbp_target_reset(sdev, sdev->timeout - 1); 2203 break; 2204 default: 2205 aprint_error("\n"); 2206 #if 0 2207 /* XXX give up */ 2208 sbp_scsipi_detach_target(target); 2209 if (target->luns != NULL) 2210 free(target->luns, M_SBP); 2211 target->num_lun = 0; 2212 target->luns = NULL; 2213 target->fwdev = NULL; 2214 #endif 2215 } 2216 } 2217 2218 static void 2219 sbp_action1(struct sbp_softc *sc, struct scsipi_xfer *xs) 2220 { 2221 struct sbp_target *target = &sc->sc_target; 2222 struct sbp_dev *sdev = NULL; 2223 struct sbp_ocb *ocb; 2224 int speed, flag, error; 2225 void *cdb; 2226 2227 /* target:lun -> sdev mapping */ 2228 if (target->fwdev != NULL && 2229 xs->xs_periph->periph_lun < target->num_lun) { 2230 sdev = target->luns[xs->xs_periph->periph_lun]; 2231 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED && 2232 sdev->status != SBP_DEV_PROBE) 2233 sdev = NULL; 2234 } 2235 2236 if (sdev == NULL) { 2237 SBP_DEBUG(1) 2238 printf("%s:%d:%d: Invalid target (target needed)\n", 2239 sc ? device_xname(sc->sc_fd.dev) : "???", 2240 xs->xs_periph->periph_target, 2241 xs->xs_periph->periph_lun); 2242 END_DEBUG 2243 2244 xs->error = XS_DRIVER_STUFFUP; 2245 scsipi_done(xs); 2246 return; 2247 } 2248 2249 SBP_DEBUG(2) 2250 printf("%s:%d:%d:" 2251 " cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x," 2252 " flags: 0x%02x, %db cmd/%db data\n", 2253 device_xname(sc->sc_fd.dev), 2254 xs->xs_periph->periph_target, 2255 xs->xs_periph->periph_lun, 2256 xs->cmd->opcode, 2257 xs->cmd->bytes[0], xs->cmd->bytes[1], 2258 xs->cmd->bytes[2], xs->cmd->bytes[3], 2259 xs->cmd->bytes[4], xs->cmd->bytes[5], 2260 xs->cmd->bytes[6], xs->cmd->bytes[7], 2261 xs->cmd->bytes[8], 2262 xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT), 2263 xs->cmdlen, xs->datalen); 2264 END_DEBUG 2265 mutex_enter(&sc->sc_mtx); 2266 ocb = sbp_get_ocb(sdev); 2267 mutex_exit(&sc->sc_mtx); 2268 if (ocb == NULL) { 2269 xs->error = XS_REQUEUE; 2270 if (sdev->freeze == 0) { 2271 scsipi_periph_freeze(sdev->periph, 1); 2272 sdev->freeze++; 2273 } 2274 scsipi_done(xs); 2275 return; 2276 } 2277 2278 ocb->flags = OCB_ACT_CMD; 2279 ocb->sdev = sdev; 2280 ocb->xs = xs; 2281 ocb->orb[0] = htonl(1 << 31); 2282 ocb->orb[1] = 0; 2283 ocb->orb[2] = htonl(((sc->sc_fd.fc->nodeid | FWLOCALBUS) << 16)); 2284 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET); 2285 speed = uimin(target->fwdev->speed, max_speed); 2286 ocb->orb[4] = 2287 htonl(ORB_NOTIFY | ORB_CMD_SPD(speed) | ORB_CMD_MAXP(speed + 7)); 2288 if ((xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT)) == 2289 XS_CTL_DATA_IN) { 2290 ocb->orb[4] |= htonl(ORB_CMD_IN); 2291 flag = BUS_DMA_READ; 2292 } else 2293 flag = BUS_DMA_WRITE; 2294 2295 cdb = xs->cmd; 2296 memcpy((void *)&ocb->orb[5], cdb, xs->cmdlen); 2297 /* 2298 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3])); 2299 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7])); 2300 */ 2301 if (xs->datalen > 0) { 2302 error = bus_dmamap_load(sc->sc_dmat, ocb->dmamap, 2303 xs->data, xs->datalen, NULL, BUS_DMA_NOWAIT | flag); 2304 if (error) { 2305 aprint_error_dev(sc->sc_fd.dev, 2306 "DMA map load error %d\n", error); 2307 xs->error = XS_DRIVER_STUFFUP; 2308 scsipi_done(xs); 2309 } else 2310 sbp_execute_ocb(ocb, ocb->dmamap->dm_segs, 2311 ocb->dmamap->dm_nsegs); 2312 } else 2313 sbp_execute_ocb(ocb, NULL, 0); 2314 2315 return; 2316 } 2317 2318 static void 2319 sbp_execute_ocb(struct sbp_ocb *ocb, bus_dma_segment_t *segments, int seg) 2320 { 2321 struct sbp_ocb *prev; 2322 bus_dma_segment_t *s; 2323 int i; 2324 2325 SBP_DEBUG(2) 2326 printf("sbp_execute_ocb: seg %d", seg); 2327 for (i = 0; i < seg; i++) 2328 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr, 2329 (uintmax_t)segments[i].ds_len); 2330 printf("\n"); 2331 END_DEBUG 2332 2333 if (seg == 1) { 2334 /* direct pointer */ 2335 s = segments; 2336 if (s->ds_len > SBP_SEG_MAX) 2337 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2338 ocb->orb[3] = htonl(s->ds_addr); 2339 ocb->orb[4] |= htonl(s->ds_len); 2340 } else if (seg > 1) { 2341 /* page table */ 2342 for (i = 0; i < seg; i++) { 2343 s = &segments[i]; 2344 SBP_DEBUG(0) 2345 /* XXX LSI Logic "< 16 byte" bug might be hit */ 2346 if (s->ds_len < 16) 2347 printf("sbp_execute_ocb: warning, " 2348 "segment length(%jd) is less than 16." 2349 "(seg=%d/%d)\n", 2350 (uintmax_t)s->ds_len, i + 1, seg); 2351 END_DEBUG 2352 if (s->ds_len > SBP_SEG_MAX) 2353 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2354 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16); 2355 ocb->ind_ptr[i].lo = htonl(s->ds_addr); 2356 } 2357 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg); 2358 } 2359 2360 if (seg > 0) { 2361 struct sbp_softc *sc = ocb->sdev->target->sbp; 2362 const int flag = (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2363 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE; 2364 2365 bus_dmamap_sync(sc->sc_dmat, ocb->dmamap, 2366 0, ocb->dmamap->dm_mapsize, flag); 2367 } 2368 prev = sbp_enqueue_ocb(ocb->sdev, ocb); 2369 SBP_ORB_DMA_SYNC(ocb->sdev->dma, ocb->index, BUS_DMASYNC_PREWRITE); 2370 if (use_doorbell) { 2371 if (prev == NULL) { 2372 if (ocb->sdev->last_ocb != NULL) 2373 sbp_doorbell(ocb->sdev); 2374 else 2375 sbp_orb_pointer(ocb->sdev, ocb); 2376 } 2377 } else 2378 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) { 2379 ocb->sdev->flags &= ~ORB_LINK_DEAD; 2380 sbp_orb_pointer(ocb->sdev, ocb); 2381 } 2382 } 2383 2384 static struct sbp_ocb * 2385 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status) 2386 { 2387 struct sbp_softc *sc = sdev->target->sbp; 2388 struct sbp_ocb *ocb; 2389 struct sbp_ocb *next; 2390 int order = 0; 2391 2392 SBP_DEBUG(1) 2393 printf("%s:%s:%s: 0x%08x src %d\n", device_xname(sc->sc_fd.dev), 2394 __func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo), 2395 sbp_status->src); 2396 END_DEBUG 2397 mutex_enter(&sc->sc_mtx); 2398 for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) { 2399 next = STAILQ_NEXT(ocb, ocb); 2400 if (OCB_MATCH(ocb, sbp_status)) { 2401 /* found */ 2402 SBP_ORB_DMA_SYNC(sdev->dma, ocb->index, 2403 BUS_DMASYNC_POSTWRITE); 2404 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb); 2405 if (ocb->xs != NULL) 2406 callout_stop(&ocb->xs->xs_callout); 2407 if (ntohl(ocb->orb[4]) & 0xffff) { 2408 const int flag = 2409 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2410 BUS_DMASYNC_POSTREAD : 2411 BUS_DMASYNC_POSTWRITE; 2412 2413 bus_dmamap_sync(sc->sc_dmat, ocb->dmamap, 2414 0, ocb->dmamap->dm_mapsize, flag); 2415 bus_dmamap_unload(sc->sc_dmat, ocb->dmamap); 2416 2417 } 2418 if (!use_doorbell) { 2419 if (sbp_status->src == SRC_NO_NEXT) { 2420 if (next != NULL) 2421 sbp_orb_pointer(sdev, next); 2422 else if (order > 0) 2423 /* 2424 * Unordered execution 2425 * We need to send pointer for 2426 * next ORB 2427 */ 2428 sdev->flags |= ORB_LINK_DEAD; 2429 } 2430 } 2431 break; 2432 } else 2433 order++; 2434 } 2435 mutex_exit(&sc->sc_mtx); 2436 2437 if (ocb && use_doorbell) { 2438 /* 2439 * XXX this is not correct for unordered 2440 * execution. 2441 */ 2442 if (sdev->last_ocb != NULL) 2443 sbp_free_ocb(sdev, sdev->last_ocb); 2444 sdev->last_ocb = ocb; 2445 if (next != NULL && 2446 sbp_status->src == SRC_NO_NEXT) 2447 sbp_doorbell(sdev); 2448 } 2449 2450 SBP_DEBUG(0) 2451 if (ocb && order > 0) 2452 printf("%s:%s:%s: unordered execution order:%d\n", 2453 device_xname(sc->sc_fd.dev), __func__, sdev->bustgtlun, 2454 order); 2455 END_DEBUG 2456 return ocb; 2457 } 2458 2459 static struct sbp_ocb * 2460 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2461 { 2462 struct sbp_softc *sc = sdev->target->sbp; 2463 struct sbp_ocb *tocb, *prev, *prev2; 2464 2465 SBP_DEBUG(1) 2466 printf("%s:%s:%s: 0x%08jx\n", device_xname(sc->sc_fd.dev), 2467 __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2468 END_DEBUG 2469 mutex_enter(&sc->sc_mtx); 2470 prev = NULL; 2471 STAILQ_FOREACH(tocb, &sdev->ocbs, ocb) 2472 prev = tocb; 2473 prev2 = prev; 2474 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb); 2475 mutex_exit(&sc->sc_mtx); 2476 2477 callout_reset(&ocb->xs->xs_callout, mstohz(ocb->xs->timeout), 2478 sbp_timeout, ocb); 2479 2480 if (use_doorbell && prev == NULL) 2481 prev2 = sdev->last_ocb; 2482 2483 if (prev2 != NULL) { 2484 SBP_DEBUG(2) 2485 printf("linking chain 0x%jx -> 0x%jx\n", 2486 (uintmax_t)prev2->bus_addr, (uintmax_t)ocb->bus_addr); 2487 END_DEBUG 2488 /* 2489 * Suppress compiler optimization so that orb[1] must be 2490 * written first. 2491 * XXX We may need an explicit memory barrier for other 2492 * architectures other than i386/amd64. 2493 */ 2494 *(volatile uint32_t *)&prev2->orb[1] = htonl(ocb->bus_addr); 2495 *(volatile uint32_t *)&prev2->orb[0] = 0; 2496 } 2497 2498 return prev; 2499 } 2500 2501 static struct sbp_ocb * 2502 sbp_get_ocb(struct sbp_dev *sdev) 2503 { 2504 struct sbp_softc *sc = sdev->target->sbp; 2505 struct sbp_ocb *ocb; 2506 2507 KASSERT(mutex_owned(&sc->sc_mtx)); 2508 2509 ocb = STAILQ_FIRST(&sdev->free_ocbs); 2510 if (ocb == NULL) { 2511 sdev->flags |= ORB_SHORTAGE; 2512 aprint_error_dev(sc->sc_fd.dev, 2513 "ocb shortage!!!\n"); 2514 return NULL; 2515 } 2516 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb); 2517 ocb->xs = NULL; 2518 return ocb; 2519 } 2520 2521 static void 2522 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2523 { 2524 struct sbp_softc *sc = sdev->target->sbp; 2525 int count; 2526 2527 ocb->flags = 0; 2528 ocb->xs = NULL; 2529 2530 mutex_enter(&sc->sc_mtx); 2531 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb); 2532 mutex_exit(&sc->sc_mtx); 2533 if (sdev->flags & ORB_SHORTAGE) { 2534 sdev->flags &= ~ORB_SHORTAGE; 2535 count = sdev->freeze; 2536 sdev->freeze = 0; 2537 if (sdev->periph) 2538 scsipi_periph_thaw(sdev->periph, count); 2539 scsipi_channel_thaw(&sc->sc_channel, 0); 2540 } 2541 } 2542 2543 static void 2544 sbp_abort_ocb(struct sbp_ocb *ocb, int status) 2545 { 2546 struct sbp_softc *sc; 2547 struct sbp_dev *sdev; 2548 2549 sdev = ocb->sdev; 2550 sc = sdev->target->sbp; 2551 SBP_DEBUG(0) 2552 printf("%s:%s:%s: sbp_abort_ocb 0x%jx\n", device_xname(sc->sc_fd.dev), 2553 __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2554 END_DEBUG 2555 SBP_DEBUG(1) 2556 if (ocb->xs != NULL) 2557 sbp_print_scsi_cmd(ocb); 2558 END_DEBUG 2559 if (ntohl(ocb->orb[4]) & 0xffff) { 2560 const int flag = (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2561 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE; 2562 2563 bus_dmamap_sync(sc->sc_dmat, ocb->dmamap, 2564 0, ocb->dmamap->dm_mapsize, flag); 2565 bus_dmamap_unload(sc->sc_dmat, ocb->dmamap); 2566 } 2567 if (ocb->xs != NULL) { 2568 callout_stop(&ocb->xs->xs_callout); 2569 ocb->xs->error = status; 2570 scsipi_done(ocb->xs); 2571 } 2572 sbp_free_ocb(sdev, ocb); 2573 } 2574 2575 static void 2576 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status) 2577 { 2578 struct sbp_softc *sc = sdev->target->sbp; 2579 struct sbp_ocb *ocb, *next; 2580 STAILQ_HEAD(, sbp_ocb) temp; 2581 2582 mutex_enter(&sc->sc_mtx); 2583 STAILQ_INIT(&temp); 2584 STAILQ_CONCAT(&temp, &sdev->ocbs); 2585 STAILQ_INIT(&sdev->ocbs); 2586 mutex_exit(&sc->sc_mtx); 2587 2588 for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) { 2589 next = STAILQ_NEXT(ocb, ocb); 2590 sbp_abort_ocb(ocb, status); 2591 } 2592 if (sdev->last_ocb != NULL) { 2593 sbp_free_ocb(sdev, sdev->last_ocb); 2594 sdev->last_ocb = NULL; 2595 } 2596 } 2597
Indexes created Sat Sep 20 22:09:52 GMT 2025