sbp.c revision 1.39
1 /* $NetBSD: sbp.c,v 1.39 2019/11/10 21:16:35 chs 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 1.39 2019/11/10 21:16:35 chs 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 if (sc->sc_bus == NULL) { 522 aprint_error_dev(self, "attach failed\n"); 523 return; 524 } 525 526 /* We reserve 16 bit space (4 bytes X 64 unit X 256 luns) */ 527 dv_unit = device_unit(sc->sc_fd.dev); 528 sc->sc_fwb.start = SBP_DEV2ADDR(dv_unit, 0); 529 sc->sc_fwb.end = SBP_DEV2ADDR(dv_unit, -1); 530 /* pre-allocate xfer */ 531 fw_xferlist_add(&sc->sc_fwb.xferlist, M_SBP, 532 /*send*/ 0, /*recv*/ SBP_RECV_LEN, SBP_NUM_OCB / 2, 533 fc, (void *)sc, sbp_recv); 534 fw_bindadd(fc, &sc->sc_fwb); 535 536 sc->sc_fd.post_busreset = sbp_post_busreset; 537 sc->sc_fd.post_explore = sbp_post_explore; 538 539 if (fc->status != FWBUSNOTREADY) { 540 sbp_post_busreset((void *)sc); 541 sbp_post_explore((void *)sc); 542 } 543 } 544 545 static int 546 sbpdetach(device_t self, int flags) 547 { 548 struct sbp_softc *sc = device_private(self); 549 struct firewire_comm *fc = sc->sc_fd.fc; 550 551 sbp_scsipi_detach_target(&sc->sc_target); 552 553 if (sc->sc_target.fwdev && SBP_FWDEV_ALIVE(sc->sc_target.fwdev)) { 554 sbp_logout_all(sc); 555 556 /* XXX wait for logout completion */ 557 mutex_enter(&sc->sc_mtx); 558 cv_timedwait_sig(&sc->sc_cv, &sc->sc_mtx, hz/2); 559 mutex_exit(&sc->sc_mtx); 560 } 561 562 sbp_free_target(&sc->sc_target); 563 564 fw_bindremove(fc, &sc->sc_fwb); 565 fw_xferlist_remove(&sc->sc_fwb.xferlist); 566 mutex_destroy(&sc->sc_fwb.fwb_mtx); 567 568 mutex_destroy(&sc->sc_mtx); 569 cv_destroy(&sc->sc_cv); 570 571 return 0; 572 } 573 574 575 static void 576 sbp_scsipi_request(struct scsipi_channel *channel, scsipi_adapter_req_t req, 577 void *arg) 578 { 579 struct sbp_softc *sc = device_private(channel->chan_adapter->adapt_dev); 580 struct scsipi_xfer *xs = arg; 581 int i; 582 583 SBP_DEBUG(1) 584 printf("Called sbp_scsipi_request\n"); 585 END_DEBUG 586 587 switch (req) { 588 case ADAPTER_REQ_RUN_XFER: 589 SBP_DEBUG(1) 590 printf("Got req_run_xfer\n"); 591 printf("xs control: 0x%08x, timeout: %d\n", 592 xs->xs_control, xs->timeout); 593 printf("opcode: 0x%02x\n", (int)xs->cmd->opcode); 594 for (i = 0; i < 15; i++) 595 printf("0x%02x ",(int)xs->cmd->bytes[i]); 596 printf("\n"); 597 END_DEBUG 598 if (xs->xs_control & XS_CTL_RESET) { 599 SBP_DEBUG(1) 600 printf("XS_CTL_RESET not support\n"); 601 END_DEBUG 602 break; 603 } 604 #define SBPSCSI_SBP2_MAX_CDB 12 605 if (xs->cmdlen > SBPSCSI_SBP2_MAX_CDB) { 606 SBP_DEBUG(0) 607 printf( 608 "sbp doesn't support cdb's larger than %d bytes\n", 609 SBPSCSI_SBP2_MAX_CDB); 610 END_DEBUG 611 xs->error = XS_DRIVER_STUFFUP; 612 scsipi_done(xs); 613 return; 614 } 615 sbp_action1(sc, xs); 616 617 break; 618 case ADAPTER_REQ_GROW_RESOURCES: 619 SBP_DEBUG(1) 620 printf("Got req_grow_resources\n"); 621 END_DEBUG 622 break; 623 case ADAPTER_REQ_SET_XFER_MODE: 624 SBP_DEBUG(1) 625 printf("Got set xfer mode\n"); 626 END_DEBUG 627 break; 628 default: 629 panic("Unknown request: %d\n", (int)req); 630 } 631 } 632 633 static void 634 sbp_minphys(struct buf *bp) 635 { 636 637 minphys(bp); 638 } 639 640 641 /* 642 * Display device characteristics on the console 643 */ 644 static void 645 sbp_show_sdev_info(struct sbp_dev *sdev) 646 { 647 struct fw_device *fwdev = sdev->target->fwdev; 648 struct sbp_softc *sc = sdev->target->sbp; 649 650 aprint_normal_dev(sc->sc_fd.dev, 651 "ordered:%d type:%d EUI:%08x%08x node:%d speed:%d maxrec:%d\n", 652 (sdev->type & 0x40) >> 6, 653 (sdev->type & 0x1f), 654 fwdev->eui.hi, 655 fwdev->eui.lo, 656 fwdev->dst, 657 fwdev->speed, 658 fwdev->maxrec); 659 aprint_normal_dev(sc->sc_fd.dev, "%s '%s' '%s' '%s'\n", 660 sdev->bustgtlun, sdev->vendor, sdev->product, sdev->revision); 661 } 662 663 static void 664 sbp_alloc_lun(struct sbp_target *target) 665 { 666 struct crom_context cc; 667 struct csrreg *reg; 668 struct sbp_dev *sdev, **newluns; 669 struct sbp_softc *sc; 670 int maxlun, lun, i; 671 672 sc = target->sbp; 673 crom_init_context(&cc, target->fwdev->csrrom); 674 /* XXX shoud parse appropriate unit directories only */ 675 maxlun = -1; 676 while (cc.depth >= 0) { 677 reg = crom_search_key(&cc, CROM_LUN); 678 if (reg == NULL) 679 break; 680 lun = reg->val & 0xffff; 681 SBP_DEBUG(0) 682 printf("target %d lun %d found\n", target->target_id, lun); 683 END_DEBUG 684 if (maxlun < lun) 685 maxlun = lun; 686 crom_next(&cc); 687 } 688 if (maxlun < 0) 689 aprint_normal_dev(sc->sc_fd.dev, "%d: no LUN found\n", 690 target->target_id); 691 692 maxlun++; 693 if (maxlun >= SBP_NUM_LUNS) 694 maxlun = SBP_NUM_LUNS; 695 696 /* Invalidiate stale devices */ 697 for (lun = 0; lun < target->num_lun; lun++) { 698 sdev = target->luns[lun]; 699 if (sdev == NULL) 700 continue; 701 sdev->flags &= ~VALID_LUN; 702 if (lun >= maxlun) { 703 /* lost device */ 704 sbp_scsipi_detach_sdev(sdev); 705 sbp_free_sdev(sdev); 706 target->luns[lun] = NULL; 707 } 708 } 709 710 /* Reallocate */ 711 if (maxlun != target->num_lun) { 712 newluns = (struct sbp_dev **) realloc(target->luns, 713 sizeof(struct sbp_dev *) * maxlun, 714 M_SBP, M_WAITOK | M_ZERO); 715 716 /* 717 * We must zero the extended region for the case 718 * realloc() doesn't allocate new buffer. 719 */ 720 if (maxlun > target->num_lun) { 721 const int sbp_dev_p_sz = sizeof(struct sbp_dev *); 722 723 memset(&newluns[target->num_lun], 0, 724 sbp_dev_p_sz * (maxlun - target->num_lun)); 725 } 726 727 target->luns = newluns; 728 target->num_lun = maxlun; 729 } 730 731 crom_init_context(&cc, target->fwdev->csrrom); 732 while (cc.depth >= 0) { 733 int new = 0; 734 735 reg = crom_search_key(&cc, CROM_LUN); 736 if (reg == NULL) 737 break; 738 lun = reg->val & 0xffff; 739 if (lun >= SBP_NUM_LUNS) { 740 aprint_error_dev(sc->sc_fd.dev, "too large lun %d\n", 741 lun); 742 goto next; 743 } 744 745 sdev = target->luns[lun]; 746 if (sdev == NULL) { 747 sdev = malloc(sizeof(struct sbp_dev), 748 M_SBP, M_WAITOK | M_ZERO); 749 target->luns[lun] = sdev; 750 sdev->lun_id = lun; 751 sdev->target = target; 752 STAILQ_INIT(&sdev->ocbs); 753 callout_init(&sdev->login_callout, CALLOUT_MPSAFE); 754 callout_setfunc(&sdev->login_callout, 755 sbp_login_callout, sdev); 756 sdev->status = SBP_DEV_RESET; 757 new = 1; 758 snprintf(sdev->bustgtlun, 32, "%s:%d:%d", 759 device_xname(sc->sc_fd.dev), 760 sdev->target->target_id, 761 sdev->lun_id); 762 if (!sc->sc_lwp) 763 if (kthread_create( 764 PRI_NONE, KTHREAD_MPSAFE, NULL, 765 sbp_scsipi_scan_target, &sc->sc_target, 766 &sc->sc_lwp, 767 "sbp%d_attach", device_unit(sc->sc_fd.dev))) 768 aprint_error_dev(sc->sc_fd.dev, 769 "unable to create thread"); 770 } 771 sdev->flags |= VALID_LUN; 772 sdev->type = (reg->val & 0xff0000) >> 16; 773 774 if (new == 0) 775 goto next; 776 777 fwdma_alloc_setup(sc->sc_fd.dev, sc->sc_dmat, SBP_DMA_SIZE, 778 &sdev->dma, sizeof(uint32_t), BUS_DMA_NOWAIT); 779 if (sdev->dma.v_addr == NULL) { 780 free(sdev, M_SBP); 781 target->luns[lun] = NULL; 782 goto next; 783 } 784 sdev->ocb = (struct sbp_ocb *)sdev->dma.v_addr; 785 sdev->login = (struct sbp_login_res *)&sdev->ocb[SBP_QUEUE_LEN]; 786 memset((char *)sdev->ocb, 0, 787 sizeof(struct sbp_ocb) * SBP_QUEUE_LEN); 788 789 STAILQ_INIT(&sdev->free_ocbs); 790 for (i = 0; i < SBP_QUEUE_LEN; i++) { 791 struct sbp_ocb *ocb = &sdev->ocb[i]; 792 793 ocb->index = i; 794 ocb->bus_addr = 795 sdev->dma.bus_addr + sizeof(struct sbp_ocb) * i; 796 if (bus_dmamap_create(sc->sc_dmat, 0x100000, 797 SBP_IND_MAX, SBP_SEG_MAX, 0, 0, &ocb->dmamap)) { 798 aprint_error_dev(sc->sc_fd.dev, 799 "cannot create dmamap %d\n", i); 800 /* XXX */ 801 goto next; 802 } 803 sbp_free_ocb(sdev, ocb); /* into free queue */ 804 } 805 next: 806 crom_next(&cc); 807 } 808 809 for (lun = 0; lun < target->num_lun; lun++) { 810 sdev = target->luns[lun]; 811 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) { 812 sbp_scsipi_detach_sdev(sdev); 813 sbp_free_sdev(sdev); 814 target->luns[lun] = NULL; 815 } 816 } 817 } 818 819 static struct sbp_target * 820 sbp_alloc_target(struct sbp_softc *sc, struct fw_device *fwdev) 821 { 822 struct sbp_target *target; 823 struct crom_context cc; 824 struct csrreg *reg; 825 826 SBP_DEBUG(1) 827 printf("sbp_alloc_target\n"); 828 END_DEBUG 829 /* new target */ 830 target = &sc->sc_target; 831 target->sbp = sc; 832 target->fwdev = fwdev; 833 target->target_id = 0; 834 target->mgm_ocb_cur = NULL; 835 SBP_DEBUG(1) 836 printf("target: mgm_port: %x\n", target->mgm_lo); 837 END_DEBUG 838 STAILQ_INIT(&target->xferlist); 839 target->n_xfer = 0; 840 STAILQ_INIT(&target->mgm_ocb_queue); 841 callout_init(&target->mgm_ocb_timeout, CALLOUT_MPSAFE); 842 843 target->luns = NULL; 844 target->num_lun = 0; 845 846 /* XXX we may want to reload mgm port after each bus reset */ 847 /* XXX there might be multiple management agents */ 848 crom_init_context(&cc, target->fwdev->csrrom); 849 reg = crom_search_key(&cc, CROM_MGM); 850 if (reg == NULL || reg->val == 0) { 851 aprint_error_dev(sc->sc_fd.dev, "NULL management address\n"); 852 target->fwdev = NULL; 853 return NULL; 854 } 855 856 target->mgm_hi = 0xffff; 857 target->mgm_lo = 0xf0000000 | (reg->val << 2); 858 859 return target; 860 } 861 862 static void 863 sbp_probe_lun(struct sbp_dev *sdev) 864 { 865 struct fw_device *fwdev; 866 struct crom_context c, *cc = &c; 867 struct csrreg *reg; 868 869 memset(sdev->vendor, 0, sizeof(sdev->vendor)); 870 memset(sdev->product, 0, sizeof(sdev->product)); 871 872 fwdev = sdev->target->fwdev; 873 crom_init_context(cc, fwdev->csrrom); 874 /* get vendor string */ 875 crom_search_key(cc, CSRKEY_VENDOR); 876 crom_next(cc); 877 crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor)); 878 /* skip to the unit directory for SBP-2 */ 879 while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) { 880 if (reg->val == CSRVAL_T10SBP2) 881 break; 882 crom_next(cc); 883 } 884 /* get firmware revision */ 885 reg = crom_search_key(cc, CSRKEY_FIRM_VER); 886 if (reg != NULL) 887 snprintf(sdev->revision, sizeof(sdev->revision), "%06x", 888 reg->val); 889 /* get product string */ 890 crom_search_key(cc, CSRKEY_MODEL); 891 crom_next(cc); 892 crom_parse_text(cc, sdev->product, sizeof(sdev->product)); 893 } 894 895 static void 896 sbp_login_callout(void *arg) 897 { 898 struct sbp_dev *sdev = (struct sbp_dev *)arg; 899 900 sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL); 901 } 902 903 static void 904 sbp_login(struct sbp_dev *sdev) 905 { 906 struct sbp_softc *sc = sdev->target->sbp; 907 struct timeval delta; 908 struct timeval t; 909 int ticks = 0; 910 911 microtime(&delta); 912 timersub(&delta, &sc->sc_last_busreset, &delta); 913 t.tv_sec = login_delay / 1000; 914 t.tv_usec = (login_delay % 1000) * 1000; 915 timersub(&t, &delta, &t); 916 if (t.tv_sec >= 0 && t.tv_usec > 0) 917 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000; 918 SBP_DEBUG(0) 919 printf("%s: sec = %lld usec = %ld ticks = %d\n", __func__, 920 (long long)t.tv_sec, (long)t.tv_usec, ticks); 921 END_DEBUG 922 callout_schedule(&sdev->login_callout, ticks); 923 } 924 925 static void 926 sbp_probe_target(void *arg) 927 { 928 struct sbp_target *target = (struct sbp_target *)arg; 929 struct sbp_dev *sdev; 930 int i; 931 932 SBP_DEBUG(1) 933 printf("%s %d\n", __func__, target->target_id); 934 END_DEBUG 935 936 sbp_alloc_lun(target); 937 938 /* XXX untimeout mgm_ocb and dequeue */ 939 for (i = 0; i < target->num_lun; i++) { 940 sdev = target->luns[i]; 941 if (sdev == NULL || sdev->status == SBP_DEV_DEAD) 942 continue; 943 944 if (sdev->periph != NULL) { 945 scsipi_periph_freeze(sdev->periph, 1); 946 sdev->freeze++; 947 } 948 sbp_probe_lun(sdev); 949 sbp_show_sdev_info(sdev); 950 951 sbp_abort_all_ocbs(sdev, XS_RESET); 952 switch (sdev->status) { 953 case SBP_DEV_RESET: 954 /* new or revived target */ 955 if (auto_login) 956 sbp_login(sdev); 957 break; 958 case SBP_DEV_TOATTACH: 959 case SBP_DEV_PROBE: 960 case SBP_DEV_ATTACHED: 961 case SBP_DEV_RETRY: 962 default: 963 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL); 964 break; 965 } 966 } 967 } 968 969 static void 970 sbp_post_busreset(void *arg) 971 { 972 struct sbp_softc *sc = (struct sbp_softc *)arg; 973 struct sbp_target *target = &sc->sc_target; 974 struct fw_device *fwdev = target->fwdev; 975 int alive; 976 977 alive = SBP_FWDEV_ALIVE(fwdev); 978 SBP_DEBUG(0) 979 printf("sbp_post_busreset\n"); 980 if (!alive) 981 printf("not alive\n"); 982 END_DEBUG 983 microtime(&sc->sc_last_busreset); 984 985 if (!alive) 986 return; 987 988 scsipi_channel_freeze(&sc->sc_channel, 1); 989 } 990 991 static void 992 sbp_post_explore(void *arg) 993 { 994 struct sbp_softc *sc = (struct sbp_softc *)arg; 995 struct sbp_target *target = &sc->sc_target; 996 struct fw_device *fwdev = target->fwdev; 997 int alive; 998 999 alive = SBP_FWDEV_ALIVE(fwdev); 1000 SBP_DEBUG(0) 1001 printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold); 1002 if (!alive) 1003 printf("not alive\n"); 1004 END_DEBUG 1005 if (!alive) 1006 return; 1007 1008 if (!firewire_phydma_enable) 1009 return; 1010 1011 if (sbp_cold > 0) 1012 sbp_cold--; 1013 1014 SBP_DEBUG(0) 1015 printf("sbp_post_explore: EUI:%08x%08x ", fwdev->eui.hi, fwdev->eui.lo); 1016 END_DEBUG 1017 sbp_probe_target((void *)target); 1018 if (target->num_lun == 0) 1019 sbp_free_target(target); 1020 1021 scsipi_channel_thaw(&sc->sc_channel, 1); 1022 } 1023 1024 #if NEED_RESPONSE 1025 static void 1026 sbp_loginres_callback(struct fw_xfer *xfer) 1027 { 1028 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1029 struct sbp_softc *sc = sdev->target->sbp; 1030 1031 SBP_DEBUG(1) 1032 printf("sbp_loginres_callback\n"); 1033 END_DEBUG 1034 /* recycle */ 1035 mutex_enter(&sc->sc_fwb.fwb_mtx); 1036 STAILQ_INSERT_TAIL(&sc->sc_fwb.xferlist, xfer, link); 1037 mutex_exit(&sc->sc_fwb.fwb_mtx); 1038 return; 1039 } 1040 #endif 1041 1042 static inline void 1043 sbp_xfer_free(struct fw_xfer *xfer) 1044 { 1045 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1046 struct sbp_softc *sc = sdev->target->sbp; 1047 1048 fw_xfer_unload(xfer); 1049 mutex_enter(&sc->sc_mtx); 1050 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link); 1051 mutex_exit(&sc->sc_mtx); 1052 } 1053 1054 static void 1055 sbp_reset_start_callback(struct fw_xfer *xfer) 1056 { 1057 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc; 1058 struct sbp_target *target = sdev->target; 1059 int i; 1060 1061 if (xfer->resp != 0) 1062 aprint_error("%s: sbp_reset_start failed: resp=%d\n", 1063 sdev->bustgtlun, xfer->resp); 1064 1065 for (i = 0; i < target->num_lun; i++) { 1066 tsdev = target->luns[i]; 1067 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN) 1068 sbp_login(tsdev); 1069 } 1070 } 1071 1072 static void 1073 sbp_reset_start(struct sbp_dev *sdev) 1074 { 1075 struct fw_xfer *xfer; 1076 struct fw_pkt *fp; 1077 1078 SBP_DEBUG(0) 1079 printf("%s: sbp_reset_start: %s\n", 1080 device_xname(sdev->target->sbp->sc_fd.dev), sdev->bustgtlun); 1081 END_DEBUG 1082 1083 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 1084 if (xfer == NULL) 1085 return; 1086 xfer->hand = sbp_reset_start_callback; 1087 fp = &xfer->send.hdr; 1088 fp->mode.wreqq.dest_hi = 0xffff; 1089 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START; 1090 fp->mode.wreqq.data = htonl(0xf); 1091 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1092 sbp_xfer_free(xfer); 1093 } 1094 1095 static void 1096 sbp_mgm_callback(struct fw_xfer *xfer) 1097 { 1098 struct sbp_dev *sdev; 1099 1100 sdev = (struct sbp_dev *)xfer->sc; 1101 1102 SBP_DEBUG(1) 1103 printf("%s: sbp_mgm_callback: %s\n", 1104 device_xname(sdev->target->sbp->sc_fd.dev), sdev->bustgtlun); 1105 END_DEBUG 1106 sbp_xfer_free(xfer); 1107 return; 1108 } 1109 1110 static void 1111 sbp_scsipi_scan_target(void *arg) 1112 { 1113 struct sbp_target *target = (struct sbp_target *)arg; 1114 struct sbp_softc *sc = target->sbp; 1115 struct sbp_dev *sdev; 1116 struct scsipi_channel *chan = &sc->sc_channel; 1117 struct scsibus_softc *sc_bus = device_private(sc->sc_bus); 1118 int lun, yet; 1119 1120 do { 1121 mutex_enter(&sc->sc_mtx); 1122 cv_wait_sig(&sc->sc_cv, &sc->sc_mtx); 1123 mutex_exit(&sc->sc_mtx); 1124 yet = 0; 1125 1126 for (lun = 0; lun < target->num_lun; lun++) { 1127 sdev = target->luns[lun]; 1128 if (sdev == NULL) 1129 continue; 1130 if (sdev->status != SBP_DEV_PROBE) { 1131 yet++; 1132 continue; 1133 } 1134 1135 if (sdev->periph == NULL) { 1136 if (chan->chan_nluns < target->num_lun) 1137 chan->chan_nluns = target->num_lun; 1138 1139 scsi_probe_bus(sc_bus, target->target_id, 1140 sdev->lun_id); 1141 sdev->periph = scsipi_lookup_periph(chan, 1142 target->target_id, lun); 1143 } 1144 sdev->status = SBP_DEV_ATTACHED; 1145 } 1146 } while (yet > 0); 1147 1148 sc->sc_lwp = NULL; 1149 kthread_exit(0); 1150 1151 /* NOTREACHED */ 1152 } 1153 1154 static inline void 1155 sbp_scan_dev(struct sbp_dev *sdev) 1156 { 1157 struct sbp_softc *sc = sdev->target->sbp; 1158 1159 sdev->status = SBP_DEV_PROBE; 1160 mutex_enter(&sc->sc_mtx); 1161 cv_signal(&sdev->target->sbp->sc_cv); 1162 mutex_exit(&sc->sc_mtx); 1163 } 1164 1165 1166 static void 1167 sbp_do_attach(struct fw_xfer *xfer) 1168 { 1169 struct sbp_dev *sdev; 1170 struct sbp_target *target; 1171 struct sbp_softc *sc; 1172 1173 sdev = (struct sbp_dev *)xfer->sc; 1174 target = sdev->target; 1175 sc = target->sbp; 1176 1177 SBP_DEBUG(0) 1178 printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, 1179 sdev->bustgtlun); 1180 END_DEBUG 1181 sbp_xfer_free(xfer); 1182 1183 sbp_scan_dev(sdev); 1184 return; 1185 } 1186 1187 static void 1188 sbp_agent_reset_callback(struct fw_xfer *xfer) 1189 { 1190 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1191 struct sbp_softc *sc = sdev->target->sbp; 1192 1193 SBP_DEBUG(1) 1194 printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, 1195 sdev->bustgtlun); 1196 END_DEBUG 1197 if (xfer->resp != 0) 1198 aprint_error_dev(sc->sc_fd.dev, "%s:%s: resp=%d\n", __func__, 1199 sdev->bustgtlun, xfer->resp); 1200 1201 sbp_xfer_free(xfer); 1202 if (sdev->periph != NULL) { 1203 scsipi_periph_thaw(sdev->periph, sdev->freeze); 1204 scsipi_channel_thaw(&sc->sc_channel, 0); 1205 sdev->freeze = 0; 1206 } 1207 } 1208 1209 static void 1210 sbp_agent_reset(struct sbp_dev *sdev) 1211 { 1212 struct fw_xfer *xfer; 1213 struct fw_pkt *fp; 1214 1215 SBP_DEBUG(0) 1216 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1217 __func__, sdev->bustgtlun); 1218 END_DEBUG 1219 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04); 1220 if (xfer == NULL) 1221 return; 1222 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE) 1223 xfer->hand = sbp_agent_reset_callback; 1224 else 1225 xfer->hand = sbp_do_attach; 1226 fp = &xfer->send.hdr; 1227 fp->mode.wreqq.data = htonl(0xf); 1228 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1229 sbp_xfer_free(xfer); 1230 sbp_abort_all_ocbs(sdev, XS_RESET); 1231 } 1232 1233 static void 1234 sbp_busy_timeout_callback(struct fw_xfer *xfer) 1235 { 1236 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1237 1238 SBP_DEBUG(1) 1239 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1240 __func__, sdev->bustgtlun); 1241 END_DEBUG 1242 sbp_xfer_free(xfer); 1243 sbp_agent_reset(sdev); 1244 } 1245 1246 static void 1247 sbp_busy_timeout(struct sbp_dev *sdev) 1248 { 1249 struct fw_pkt *fp; 1250 struct fw_xfer *xfer; 1251 1252 SBP_DEBUG(0) 1253 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1254 __func__, sdev->bustgtlun); 1255 END_DEBUG 1256 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 1257 if (xfer == NULL) 1258 return; 1259 xfer->hand = sbp_busy_timeout_callback; 1260 fp = &xfer->send.hdr; 1261 fp->mode.wreqq.dest_hi = 0xffff; 1262 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT; 1263 fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf); 1264 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1265 sbp_xfer_free(xfer); 1266 } 1267 1268 static void 1269 sbp_orb_pointer_callback(struct fw_xfer *xfer) 1270 { 1271 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1272 struct sbp_softc *sc = sdev->target->sbp; 1273 1274 SBP_DEBUG(1) 1275 printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, 1276 sdev->bustgtlun); 1277 END_DEBUG 1278 if (xfer->resp != 0) 1279 aprint_error_dev(sc->sc_fd.dev, "%s:%s: xfer->resp = %d\n", 1280 __func__, sdev->bustgtlun, xfer->resp); 1281 sbp_xfer_free(xfer); 1282 sdev->flags &= ~ORB_POINTER_ACTIVE; 1283 1284 if ((sdev->flags & ORB_POINTER_NEED) != 0) { 1285 struct sbp_ocb *ocb; 1286 1287 sdev->flags &= ~ORB_POINTER_NEED; 1288 ocb = STAILQ_FIRST(&sdev->ocbs); 1289 if (ocb != NULL) 1290 sbp_orb_pointer(sdev, ocb); 1291 } 1292 return; 1293 } 1294 1295 static void 1296 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb) 1297 { 1298 struct sbp_softc *sc = sdev->target->sbp; 1299 struct fw_xfer *xfer; 1300 struct fw_pkt *fp; 1301 1302 SBP_DEBUG(1) 1303 printf("%s:%s:%s: 0x%08x\n", device_xname(sc->sc_fd.dev), __func__, 1304 sdev->bustgtlun, (uint32_t)ocb->bus_addr); 1305 END_DEBUG 1306 1307 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) { 1308 SBP_DEBUG(0) 1309 printf("%s: orb pointer active\n", __func__); 1310 END_DEBUG 1311 sdev->flags |= ORB_POINTER_NEED; 1312 return; 1313 } 1314 1315 sdev->flags |= ORB_POINTER_ACTIVE; 1316 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08); 1317 if (xfer == NULL) 1318 return; 1319 xfer->hand = sbp_orb_pointer_callback; 1320 1321 fp = &xfer->send.hdr; 1322 fp->mode.wreqb.len = 8; 1323 fp->mode.wreqb.extcode = 0; 1324 xfer->send.payload[0] = 1325 htonl(((sc->sc_fd.fc->nodeid | FWLOCALBUS) << 16)); 1326 xfer->send.payload[1] = htonl((uint32_t)ocb->bus_addr); 1327 1328 if (fw_asyreq(xfer->fc, -1, xfer) != 0) { 1329 sbp_xfer_free(xfer); 1330 ocb->xs->error = XS_DRIVER_STUFFUP; 1331 scsipi_done(ocb->xs); 1332 } 1333 } 1334 1335 static void 1336 sbp_doorbell_callback(struct fw_xfer *xfer) 1337 { 1338 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1339 struct sbp_softc *sc = sdev->target->sbp; 1340 1341 SBP_DEBUG(1) 1342 printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, 1343 sdev->bustgtlun); 1344 END_DEBUG 1345 if (xfer->resp != 0) { 1346 aprint_error_dev(sc->sc_fd.dev, "%s: xfer->resp = %d\n", 1347 __func__, xfer->resp); 1348 } 1349 sbp_xfer_free(xfer); 1350 sdev->flags &= ~ORB_DOORBELL_ACTIVE; 1351 if ((sdev->flags & ORB_DOORBELL_NEED) != 0) { 1352 sdev->flags &= ~ORB_DOORBELL_NEED; 1353 sbp_doorbell(sdev); 1354 } 1355 return; 1356 } 1357 1358 static void 1359 sbp_doorbell(struct sbp_dev *sdev) 1360 { 1361 struct fw_xfer *xfer; 1362 struct fw_pkt *fp; 1363 1364 SBP_DEBUG(1) 1365 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1366 __func__, sdev->bustgtlun); 1367 END_DEBUG 1368 1369 if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) { 1370 sdev->flags |= ORB_DOORBELL_NEED; 1371 return; 1372 } 1373 sdev->flags |= ORB_DOORBELL_ACTIVE; 1374 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10); 1375 if (xfer == NULL) 1376 return; 1377 xfer->hand = sbp_doorbell_callback; 1378 fp = &xfer->send.hdr; 1379 fp->mode.wreqq.data = htonl(0xf); 1380 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1381 sbp_xfer_free(xfer); 1382 } 1383 1384 static struct fw_xfer * 1385 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset) 1386 { 1387 struct sbp_softc *sc; 1388 struct fw_xfer *xfer; 1389 struct fw_pkt *fp; 1390 struct sbp_target *target; 1391 int new = 0; 1392 1393 target = sdev->target; 1394 sc = target->sbp; 1395 mutex_enter(&sc->sc_mtx); 1396 xfer = STAILQ_FIRST(&target->xferlist); 1397 if (xfer == NULL) { 1398 if (target->n_xfer > 5 /* XXX */) { 1399 aprint_error_dev(sc->sc_fd.dev, 1400 "no more xfer for this target\n"); 1401 mutex_exit(&sc->sc_mtx); 1402 return NULL; 1403 } 1404 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0); 1405 if (xfer == NULL) { 1406 aprint_error_dev(sc->sc_fd.dev, 1407 "fw_xfer_alloc_buf failed\n"); 1408 mutex_exit(&sc->sc_mtx); 1409 return NULL; 1410 } 1411 target->n_xfer++; 1412 SBP_DEBUG(0) 1413 printf("sbp: alloc %d xfer\n", target->n_xfer); 1414 END_DEBUG 1415 new = 1; 1416 } else 1417 STAILQ_REMOVE_HEAD(&target->xferlist, link); 1418 mutex_exit(&sc->sc_mtx); 1419 1420 microtime(&xfer->tv); 1421 1422 if (new) { 1423 xfer->recv.pay_len = 0; 1424 xfer->send.spd = uimin(target->fwdev->speed, max_speed); 1425 xfer->fc = target->sbp->sc_fd.fc; 1426 } 1427 1428 if (tcode == FWTCODE_WREQB) 1429 xfer->send.pay_len = 8; 1430 else 1431 xfer->send.pay_len = 0; 1432 1433 xfer->sc = (void *)sdev; 1434 fp = &xfer->send.hdr; 1435 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi; 1436 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset; 1437 fp->mode.wreqq.tlrt = 0; 1438 fp->mode.wreqq.tcode = tcode; 1439 fp->mode.wreqq.pri = 0; 1440 fp->mode.wreqq.dst = FWLOCALBUS | target->fwdev->dst; 1441 1442 return xfer; 1443 } 1444 1445 static void 1446 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb) 1447 { 1448 struct fw_xfer *xfer; 1449 struct fw_pkt *fp; 1450 struct sbp_ocb *ocb; 1451 struct sbp_target *target; 1452 int nid, dv_unit; 1453 1454 target = sdev->target; 1455 nid = target->sbp->sc_fd.fc->nodeid | FWLOCALBUS; 1456 dv_unit = device_unit(target->sbp->sc_fd.dev); 1457 1458 mutex_enter(&target->sbp->sc_mtx); 1459 if (func == ORB_FUN_RUNQUEUE) { 1460 ocb = STAILQ_FIRST(&target->mgm_ocb_queue); 1461 if (target->mgm_ocb_cur != NULL || ocb == NULL) { 1462 mutex_exit(&target->sbp->sc_mtx); 1463 return; 1464 } 1465 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb); 1466 mutex_exit(&target->sbp->sc_mtx); 1467 goto start; 1468 } 1469 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 1470 mutex_exit(&target->sbp->sc_mtx); 1471 /* XXX */ 1472 return; 1473 } 1474 mutex_exit(&target->sbp->sc_mtx); 1475 ocb->flags = OCB_ACT_MGM; 1476 ocb->sdev = sdev; 1477 1478 memset(ocb->orb, 0, sizeof(ocb->orb)); 1479 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI); 1480 ocb->orb[7] = htonl(SBP_DEV2ADDR(dv_unit, sdev->lun_id)); 1481 1482 SBP_DEBUG(0) 1483 printf("%s:%s:%s: %s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1484 __func__, sdev->bustgtlun, orb_fun_name[(func>>16)&0xf]); 1485 END_DEBUG 1486 switch (func) { 1487 case ORB_FUN_LGI: 1488 { 1489 const off_t sbp_login_off = 1490 sizeof(struct sbp_ocb) * SBP_QUEUE_LEN; 1491 1492 ocb->orb[0] = ocb->orb[1] = 0; /* password */ 1493 ocb->orb[2] = htonl(nid << 16); 1494 ocb->orb[3] = htonl(sdev->dma.bus_addr + sbp_login_off); 1495 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id); 1496 if (ex_login) 1497 ocb->orb[4] |= htonl(ORB_EXV); 1498 ocb->orb[5] = htonl(SBP_LOGIN_SIZE); 1499 bus_dmamap_sync(sdev->dma.dma_tag, sdev->dma.dma_map, 1500 sbp_login_off, SBP_LOGIN_SIZE, BUS_DMASYNC_PREREAD); 1501 break; 1502 } 1503 1504 case ORB_FUN_ATA: 1505 ocb->orb[0] = htonl((0 << 16) | 0); 1506 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff); 1507 /* fall through */ 1508 case ORB_FUN_RCN: 1509 case ORB_FUN_LGO: 1510 case ORB_FUN_LUR: 1511 case ORB_FUN_RST: 1512 case ORB_FUN_ATS: 1513 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id); 1514 break; 1515 } 1516 1517 if (target->mgm_ocb_cur != NULL) { 1518 /* there is a standing ORB */ 1519 mutex_enter(&target->sbp->sc_mtx); 1520 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb); 1521 mutex_exit(&target->sbp->sc_mtx); 1522 return; 1523 } 1524 start: 1525 target->mgm_ocb_cur = ocb; 1526 1527 callout_reset(&target->mgm_ocb_timeout, 5 * hz, sbp_mgm_timeout, ocb); 1528 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0); 1529 if (xfer == NULL) 1530 return; 1531 xfer->hand = sbp_mgm_callback; 1532 1533 fp = &xfer->send.hdr; 1534 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi; 1535 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo; 1536 fp->mode.wreqb.len = 8; 1537 fp->mode.wreqb.extcode = 0; 1538 xfer->send.payload[0] = htonl(nid << 16); 1539 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff); 1540 1541 /* cache writeback & invalidate(required ORB_FUN_LGI func) */ 1542 /* when abort_ocb, should sync POST ope ? */ 1543 SBP_ORB_DMA_SYNC(sdev->dma, ocb->index, BUS_DMASYNC_PREWRITE); 1544 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1545 sbp_xfer_free(xfer); 1546 } 1547 1548 static void 1549 sbp_print_scsi_cmd(struct sbp_ocb *ocb) 1550 { 1551 struct scsipi_xfer *xs = ocb->xs; 1552 1553 printf("%s:%d:%d:" 1554 " cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x," 1555 " flags: 0x%02x, %db cmd/%db data\n", 1556 device_xname(ocb->sdev->target->sbp->sc_fd.dev), 1557 xs->xs_periph->periph_target, 1558 xs->xs_periph->periph_lun, 1559 xs->cmd->opcode, 1560 xs->cmd->bytes[0], xs->cmd->bytes[1], 1561 xs->cmd->bytes[2], xs->cmd->bytes[3], 1562 xs->cmd->bytes[4], xs->cmd->bytes[5], 1563 xs->cmd->bytes[6], xs->cmd->bytes[7], 1564 xs->cmd->bytes[8], 1565 xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT), 1566 xs->cmdlen, xs->datalen); 1567 } 1568 1569 static void 1570 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb) 1571 { 1572 struct sbp_cmd_status *sbp_cmd_status; 1573 struct scsi_sense_data *sense = &ocb->xs->sense.scsi_sense; 1574 1575 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data; 1576 1577 SBP_DEBUG(0) 1578 sbp_print_scsi_cmd(ocb); 1579 /* XXX need decode status */ 1580 printf("%s:" 1581 " SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n", 1582 ocb->sdev->bustgtlun, 1583 sbp_cmd_status->status, 1584 sbp_cmd_status->sfmt, 1585 sbp_cmd_status->valid, 1586 sbp_cmd_status->s_key, 1587 sbp_cmd_status->s_code, 1588 sbp_cmd_status->s_qlfr, 1589 sbp_status->len); 1590 END_DEBUG 1591 1592 switch (sbp_cmd_status->status) { 1593 case SCSI_CHECK: 1594 case SCSI_BUSY: 1595 case SCSI_TERMINATED: 1596 if (sbp_cmd_status->sfmt == SBP_SFMT_CURR) 1597 sense->response_code = SSD_RCODE_CURRENT; 1598 else 1599 sense->response_code = SSD_RCODE_DEFERRED; 1600 if (sbp_cmd_status->valid) 1601 sense->response_code |= SSD_RCODE_VALID; 1602 sense->flags = sbp_cmd_status->s_key; 1603 if (sbp_cmd_status->mark) 1604 sense->flags |= SSD_FILEMARK; 1605 if (sbp_cmd_status->eom) 1606 sense->flags |= SSD_EOM; 1607 if (sbp_cmd_status->ill_len) 1608 sense->flags |= SSD_ILI; 1609 1610 memcpy(sense->info, &sbp_cmd_status->info, 4); 1611 1612 if (sbp_status->len <= 1) 1613 /* XXX not scsi status. shouldn't be happened */ 1614 sense->extra_len = 0; 1615 else if (sbp_status->len <= 4) 1616 /* add_sense_code(_qual), info, cmd_spec_info */ 1617 sense->extra_len = 6; 1618 else 1619 /* fru, sense_key_spec */ 1620 sense->extra_len = 10; 1621 1622 memcpy(sense->csi, &sbp_cmd_status->cdb, 4); 1623 1624 sense->asc = sbp_cmd_status->s_code; 1625 sense->ascq = sbp_cmd_status->s_qlfr; 1626 sense->fru = sbp_cmd_status->fru; 1627 1628 memcpy(sense->sks.sks_bytes, sbp_cmd_status->s_keydep, 3); 1629 ocb->xs->error = XS_SENSE; 1630 ocb->xs->xs_status = sbp_cmd_status->status; 1631 /* 1632 { 1633 uint8_t j, *tmp; 1634 tmp = sense; 1635 for (j = 0; j < 32; j += 8) 1636 aprint_normal( 1637 "sense %02x%02x %02x%02x %02x%02x %02x%02x\n", 1638 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3], 1639 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]); 1640 1641 } 1642 */ 1643 break; 1644 default: 1645 aprint_error_dev(ocb->sdev->target->sbp->sc_fd.dev, 1646 "%s:%s: unknown scsi status 0x%x\n", 1647 __func__, ocb->sdev->bustgtlun, sbp_cmd_status->status); 1648 } 1649 } 1650 1651 static void 1652 sbp_fix_inq_data(struct sbp_ocb *ocb) 1653 { 1654 struct scsipi_xfer *xs = ocb->xs; 1655 struct sbp_dev *sdev; 1656 struct scsipi_inquiry_data *inq = 1657 (struct scsipi_inquiry_data *)xs->data; 1658 1659 sdev = ocb->sdev; 1660 1661 #if 0 1662 /* 1663 * NetBSD is assuming always 0 for EVPD-bit and 'Page Code'. 1664 */ 1665 #define SI_EVPD 0x01 1666 if (xs->cmd->bytes[0] & SI_EVPD) 1667 return; 1668 #endif 1669 SBP_DEBUG(1) 1670 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1671 __func__, sdev->bustgtlun); 1672 END_DEBUG 1673 switch (inq->device & SID_TYPE) { 1674 case T_DIRECT: 1675 #if 0 1676 /* 1677 * XXX Convert Direct Access device to RBC. 1678 * I've never seen FireWire DA devices which support READ_6. 1679 */ 1680 if ((inq->device & SID_TYPE) == T_DIRECT) 1681 inq->device |= T_SIMPLE_DIRECT; /* T_DIRECT == 0 */ 1682 #endif 1683 /* FALLTHROUGH */ 1684 1685 case T_SIMPLE_DIRECT: 1686 /* 1687 * Override vendor/product/revision information. 1688 * Some devices sometimes return strange strings. 1689 */ 1690 #if 1 1691 memcpy(inq->vendor, sdev->vendor, sizeof(inq->vendor)); 1692 memcpy(inq->product, sdev->product, sizeof(inq->product)); 1693 memcpy(inq->revision + 2, sdev->revision, 1694 sizeof(inq->revision)); 1695 #endif 1696 break; 1697 } 1698 /* 1699 * Force to enable/disable tagged queuing. 1700 * XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page. 1701 */ 1702 if (sbp_tags > 0) 1703 inq->flags3 |= SID_CmdQue; 1704 else if (sbp_tags < 0) 1705 inq->flags3 &= ~SID_CmdQue; 1706 1707 } 1708 1709 static void 1710 sbp_recv(struct fw_xfer *xfer) 1711 { 1712 struct fw_pkt *rfp; 1713 #if NEED_RESPONSE 1714 struct fw_pkt *sfp; 1715 #endif 1716 struct sbp_softc *sc; 1717 struct sbp_dev *sdev; 1718 struct sbp_ocb *ocb; 1719 struct sbp_login_res *login_res = NULL; 1720 struct sbp_status *sbp_status; 1721 struct sbp_target *target; 1722 int orb_fun, status_valid0, status_valid, l, reset_agent = 0; 1723 uint32_t addr; 1724 /* 1725 uint32_t *ld; 1726 ld = xfer->recv.buf; 1727 printf("sbp %x %d %d %08x %08x %08x %08x\n", 1728 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1729 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1730 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11])); 1731 */ 1732 1733 sc = (struct sbp_softc *)xfer->sc; 1734 if (xfer->resp != 0) { 1735 aprint_error_dev(sc->sc_fd.dev, 1736 "sbp_recv: xfer->resp = %d\n", xfer->resp); 1737 goto done0; 1738 } 1739 if (xfer->recv.payload == NULL) { 1740 aprint_error_dev(sc->sc_fd.dev, 1741 "sbp_recv: xfer->recv.payload == NULL\n"); 1742 goto done0; 1743 } 1744 rfp = &xfer->recv.hdr; 1745 if (rfp->mode.wreqb.tcode != FWTCODE_WREQB) { 1746 aprint_error_dev(sc->sc_fd.dev, 1747 "sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode); 1748 goto done0; 1749 } 1750 sbp_status = (struct sbp_status *)xfer->recv.payload; 1751 addr = rfp->mode.wreqb.dest_lo; 1752 SBP_DEBUG(2) 1753 printf("received address 0x%x\n", addr); 1754 END_DEBUG 1755 target = &sc->sc_target; 1756 l = SBP_ADDR2LUN(addr); 1757 if (l >= target->num_lun || target->luns[l] == NULL) { 1758 aprint_error_dev(sc->sc_fd.dev, 1759 "sbp_recv1: invalid lun %d (target=%d)\n", 1760 l, target->target_id); 1761 goto done0; 1762 } 1763 sdev = target->luns[l]; 1764 1765 ocb = NULL; 1766 switch (sbp_status->src) { 1767 case SRC_NEXT_EXISTS: 1768 case SRC_NO_NEXT: 1769 /* check mgm_ocb_cur first */ 1770 ocb = target->mgm_ocb_cur; 1771 if (ocb != NULL) 1772 if (OCB_MATCH(ocb, sbp_status)) { 1773 callout_stop(&target->mgm_ocb_timeout); 1774 target->mgm_ocb_cur = NULL; 1775 break; 1776 } 1777 ocb = sbp_dequeue_ocb(sdev, sbp_status); 1778 if (ocb == NULL) 1779 aprint_error_dev(sc->sc_fd.dev, 1780 "%s:%s: No ocb(%x) on the queue\n", __func__, 1781 sdev->bustgtlun, ntohl(sbp_status->orb_lo)); 1782 break; 1783 case SRC_UNSOL: 1784 /* unsolicit */ 1785 aprint_error_dev(sc->sc_fd.dev, 1786 "%s:%s: unsolicit status received\n", 1787 __func__, sdev->bustgtlun); 1788 break; 1789 default: 1790 aprint_error_dev(sc->sc_fd.dev, 1791 "%s:%s: unknown sbp_status->src\n", 1792 __func__, sdev->bustgtlun); 1793 } 1794 1795 status_valid0 = (sbp_status->src < 2 1796 && sbp_status->resp == SBP_REQ_CMP 1797 && sbp_status->dead == 0); 1798 status_valid = (status_valid0 && sbp_status->status == 0); 1799 1800 if (!status_valid0 || debug > 2) { 1801 int status; 1802 SBP_DEBUG(0) 1803 printf("%s:%s:%s: ORB status src:%x resp:%x dead:%x" 1804 " len:%x stat:%x orb:%x%08x\n", 1805 device_xname(sc->sc_fd.dev), __func__, sdev->bustgtlun, 1806 sbp_status->src, sbp_status->resp, sbp_status->dead, 1807 sbp_status->len, sbp_status->status, 1808 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo)); 1809 END_DEBUG 1810 printf("%s:%s\n", device_xname(sc->sc_fd.dev), sdev->bustgtlun); 1811 status = sbp_status->status; 1812 switch (sbp_status->resp) { 1813 case SBP_REQ_CMP: 1814 if (status > MAX_ORB_STATUS0) 1815 printf("%s\n", orb_status0[MAX_ORB_STATUS0]); 1816 else 1817 printf("%s\n", orb_status0[status]); 1818 break; 1819 case SBP_TRANS_FAIL: 1820 printf("Obj: %s, Error: %s\n", 1821 orb_status1_object[(status>>6) & 3], 1822 orb_status1_serial_bus_error[status & 0xf]); 1823 break; 1824 case SBP_ILLE_REQ: 1825 printf("Illegal request\n"); 1826 break; 1827 case SBP_VEND_DEP: 1828 printf("Vendor dependent\n"); 1829 break; 1830 default: 1831 printf("unknown respose code %d\n", sbp_status->resp); 1832 } 1833 } 1834 1835 /* we have to reset the fetch agent if it's dead */ 1836 if (sbp_status->dead) { 1837 if (sdev->periph != NULL) { 1838 scsipi_periph_freeze(sdev->periph, 1); 1839 sdev->freeze++; 1840 } 1841 reset_agent = 1; 1842 } 1843 1844 if (ocb == NULL) 1845 goto done; 1846 1847 switch (ntohl(ocb->orb[4]) & ORB_FMT_MSK) { 1848 case ORB_FMT_NOP: 1849 break; 1850 case ORB_FMT_VED: 1851 break; 1852 case ORB_FMT_STD: 1853 switch (ocb->flags) { 1854 case OCB_ACT_MGM: 1855 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK; 1856 reset_agent = 0; 1857 switch (orb_fun) { 1858 case ORB_FUN_LGI: 1859 { 1860 const struct fwdma_alloc *dma = &sdev->dma; 1861 const off_t sbp_login_off = 1862 sizeof(struct sbp_ocb) * SBP_QUEUE_LEN; 1863 1864 bus_dmamap_sync(dma->dma_tag, dma->dma_map, 1865 sbp_login_off, SBP_LOGIN_SIZE, 1866 BUS_DMASYNC_POSTREAD); 1867 login_res = sdev->login; 1868 login_res->len = ntohs(login_res->len); 1869 login_res->id = ntohs(login_res->id); 1870 login_res->cmd_hi = ntohs(login_res->cmd_hi); 1871 login_res->cmd_lo = ntohl(login_res->cmd_lo); 1872 if (status_valid) { 1873 SBP_DEBUG(0) 1874 printf("%s:%s:%s: login:" 1875 " len %d, ID %d, cmd %08x%08x," 1876 " recon_hold %d\n", 1877 device_xname(sc->sc_fd.dev), 1878 __func__, sdev->bustgtlun, 1879 login_res->len, login_res->id, 1880 login_res->cmd_hi, 1881 login_res->cmd_lo, 1882 ntohs(login_res->recon_hold)); 1883 END_DEBUG 1884 sbp_busy_timeout(sdev); 1885 } else { 1886 /* forgot logout? */ 1887 aprint_error_dev(sc->sc_fd.dev, 1888 "%s:%s: login failed\n", 1889 __func__, sdev->bustgtlun); 1890 sdev->status = SBP_DEV_RESET; 1891 } 1892 break; 1893 } 1894 case ORB_FUN_RCN: 1895 login_res = sdev->login; 1896 if (status_valid) { 1897 SBP_DEBUG(0) 1898 printf("%s:%s:%s: reconnect:" 1899 " len %d, ID %d, cmd %08x%08x\n", 1900 device_xname(sc->sc_fd.dev), 1901 __func__, sdev->bustgtlun, 1902 login_res->len, login_res->id, 1903 login_res->cmd_hi, 1904 login_res->cmd_lo); 1905 END_DEBUG 1906 sbp_agent_reset(sdev); 1907 } else { 1908 /* reconnection hold time exceed? */ 1909 SBP_DEBUG(0) 1910 aprint_error_dev(sc->sc_fd.dev, 1911 "%s:%s: reconnect failed\n", 1912 __func__, sdev->bustgtlun); 1913 END_DEBUG 1914 sbp_login(sdev); 1915 } 1916 break; 1917 case ORB_FUN_LGO: 1918 sdev->status = SBP_DEV_RESET; 1919 break; 1920 case ORB_FUN_RST: 1921 sbp_busy_timeout(sdev); 1922 break; 1923 case ORB_FUN_LUR: 1924 case ORB_FUN_ATA: 1925 case ORB_FUN_ATS: 1926 sbp_agent_reset(sdev); 1927 break; 1928 default: 1929 aprint_error_dev(sc->sc_fd.dev, 1930 "%s:%s: unknown function %d\n", 1931 __func__, sdev->bustgtlun, orb_fun); 1932 break; 1933 } 1934 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 1935 break; 1936 case OCB_ACT_CMD: 1937 sdev->timeout = 0; 1938 if (ocb->xs != NULL) { 1939 struct scsipi_xfer *xs = ocb->xs; 1940 1941 if (sbp_status->len > 1) 1942 sbp_scsi_status(sbp_status, ocb); 1943 else 1944 if (sbp_status->resp != SBP_REQ_CMP) 1945 xs->error = XS_DRIVER_STUFFUP; 1946 else { 1947 xs->error = XS_NOERROR; 1948 xs->resid = 0; 1949 } 1950 /* fix up inq data */ 1951 if (xs->cmd->opcode == INQUIRY) 1952 sbp_fix_inq_data(ocb); 1953 scsipi_done(xs); 1954 } 1955 break; 1956 default: 1957 break; 1958 } 1959 } 1960 1961 if (!use_doorbell) 1962 sbp_free_ocb(sdev, ocb); 1963 done: 1964 if (reset_agent) 1965 sbp_agent_reset(sdev); 1966 1967 done0: 1968 xfer->recv.pay_len = SBP_RECV_LEN; 1969 /* The received packet is usually small enough to be stored within 1970 * the buffer. In that case, the controller return ack_complete and 1971 * no respose is necessary. 1972 * 1973 * XXX fwohci.c and firewire.c should inform event_code such as 1974 * ack_complete or ack_pending to upper driver. 1975 */ 1976 #if NEED_RESPONSE 1977 xfer->send.off = 0; 1978 sfp = (struct fw_pkt *)xfer->send.buf; 1979 sfp->mode.wres.dst = rfp->mode.wreqb.src; 1980 xfer->dst = sfp->mode.wres.dst; 1981 xfer->spd = uimin(sdev->target->fwdev->speed, max_speed); 1982 xfer->hand = sbp_loginres_callback; 1983 1984 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt; 1985 sfp->mode.wres.tcode = FWTCODE_WRES; 1986 sfp->mode.wres.rtcode = 0; 1987 sfp->mode.wres.pri = 0; 1988 1989 if (fw_asyreq(xfer->fc, -1, xfer) != 0) { 1990 aprint_error_dev(sc->sc_fd.dev, "mgm_orb failed\n"); 1991 mutex_enter(&sc->sc_fwb.fwb_mtx); 1992 STAILQ_INSERT_TAIL(&sc->sc_fwb.xferlist, xfer, link); 1993 mutex_exit(&sc->sc_fwb.fwb_mtx); 1994 } 1995 #else 1996 /* recycle */ 1997 mutex_enter(&sc->sc_fwb.fwb_mtx); 1998 STAILQ_INSERT_TAIL(&sc->sc_fwb.xferlist, xfer, link); 1999 mutex_exit(&sc->sc_fwb.fwb_mtx); 2000 #endif 2001 2002 return; 2003 2004 } 2005 2006 static int 2007 sbp_logout_all(struct sbp_softc *sbp) 2008 { 2009 struct sbp_target *target; 2010 struct sbp_dev *sdev; 2011 int i; 2012 2013 SBP_DEBUG(0) 2014 printf("sbp_logout_all\n"); 2015 END_DEBUG 2016 target = &sbp->sc_target; 2017 if (target->luns != NULL) { 2018 for (i = 0; i < target->num_lun; i++) { 2019 sdev = target->luns[i]; 2020 if (sdev == NULL) 2021 continue; 2022 callout_stop(&sdev->login_callout); 2023 if (sdev->status >= SBP_DEV_TOATTACH && 2024 sdev->status <= SBP_DEV_ATTACHED) 2025 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL); 2026 } 2027 } 2028 2029 return 0; 2030 } 2031 2032 static void 2033 sbp_free_sdev(struct sbp_dev *sdev) 2034 { 2035 struct sbp_softc *sc = sdev->target->sbp; 2036 int i; 2037 2038 if (sdev == NULL) 2039 return; 2040 for (i = 0; i < SBP_QUEUE_LEN; i++) 2041 bus_dmamap_destroy(sc->sc_dmat, sdev->ocb[i].dmamap); 2042 fwdma_free(sdev->dma.dma_tag, sdev->dma.dma_map, sdev->dma.v_addr); 2043 free(sdev, M_SBP); 2044 } 2045 2046 static void 2047 sbp_free_target(struct sbp_target *target) 2048 { 2049 struct fw_xfer *xfer, *next; 2050 int i; 2051 2052 if (target->luns == NULL) 2053 return; 2054 callout_stop(&target->mgm_ocb_timeout); 2055 for (i = 0; i < target->num_lun; i++) 2056 sbp_free_sdev(target->luns[i]); 2057 2058 for (xfer = STAILQ_FIRST(&target->xferlist); 2059 xfer != NULL; xfer = next) { 2060 next = STAILQ_NEXT(xfer, link); 2061 fw_xfer_free_buf(xfer); 2062 } 2063 STAILQ_INIT(&target->xferlist); 2064 free(target->luns, M_SBP); 2065 target->num_lun = 0; 2066 target->luns = NULL; 2067 target->fwdev = NULL; 2068 } 2069 2070 static void 2071 sbp_scsipi_detach_sdev(struct sbp_dev *sdev) 2072 { 2073 struct sbp_target *target; 2074 struct sbp_softc *sbp; 2075 2076 if (sdev == NULL) 2077 return; 2078 2079 target = sdev->target; 2080 if (target == NULL) 2081 return; 2082 2083 sbp = target->sbp; 2084 2085 if (sdev->status == SBP_DEV_DEAD) 2086 return; 2087 if (sdev->status == SBP_DEV_RESET) 2088 return; 2089 if (sdev->periph != NULL) { 2090 scsipi_periph_thaw(sdev->periph, sdev->freeze); 2091 scsipi_channel_thaw(&sbp->sc_channel, 0); /* XXXX */ 2092 sdev->freeze = 0; 2093 if (scsipi_target_detach(&sbp->sc_channel, 2094 target->target_id, sdev->lun_id, DETACH_FORCE) != 0) { 2095 aprint_error_dev(sbp->sc_fd.dev, "detach failed\n"); 2096 } 2097 sdev->periph = NULL; 2098 } 2099 sbp_abort_all_ocbs(sdev, XS_DRIVER_STUFFUP); 2100 } 2101 2102 static void 2103 sbp_scsipi_detach_target(struct sbp_target *target) 2104 { 2105 struct sbp_softc *sbp = target->sbp; 2106 int i; 2107 2108 if (target->luns != NULL) { 2109 SBP_DEBUG(0) 2110 printf("sbp_detach_target %d\n", target->target_id); 2111 END_DEBUG 2112 for (i = 0; i < target->num_lun; i++) 2113 sbp_scsipi_detach_sdev(target->luns[i]); 2114 if (config_detach(sbp->sc_bus, DETACH_FORCE) != 0) 2115 aprint_error_dev(sbp->sc_fd.dev, "%d detach failed\n", 2116 target->target_id); 2117 sbp->sc_bus = NULL; 2118 } 2119 } 2120 2121 static void 2122 sbp_target_reset(struct sbp_dev *sdev, int method) 2123 { 2124 struct sbp_target *target = sdev->target; 2125 struct sbp_dev *tsdev; 2126 int i; 2127 2128 for (i = 0; i < target->num_lun; i++) { 2129 tsdev = target->luns[i]; 2130 if (tsdev == NULL) 2131 continue; 2132 if (tsdev->status == SBP_DEV_DEAD) 2133 continue; 2134 if (tsdev->status == SBP_DEV_RESET) 2135 continue; 2136 if (sdev->periph != NULL) { 2137 scsipi_periph_freeze(tsdev->periph, 1); 2138 tsdev->freeze++; 2139 } 2140 sbp_abort_all_ocbs(tsdev, XS_TIMEOUT); 2141 if (method == 2) 2142 tsdev->status = SBP_DEV_LOGIN; 2143 } 2144 switch (method) { 2145 case 1: 2146 aprint_error("target reset\n"); 2147 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL); 2148 break; 2149 case 2: 2150 aprint_error("reset start\n"); 2151 sbp_reset_start(sdev); 2152 break; 2153 } 2154 } 2155 2156 static void 2157 sbp_mgm_timeout(void *arg) 2158 { 2159 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2160 struct sbp_dev *sdev = ocb->sdev; 2161 struct sbp_target *target = sdev->target; 2162 2163 aprint_error_dev(sdev->target->sbp->sc_fd.dev, 2164 "%s:%s: request timeout(mgm orb:0x%08x) ... ", 2165 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2166 target->mgm_ocb_cur = NULL; 2167 sbp_free_ocb(sdev, ocb); 2168 #if 0 2169 /* XXX */ 2170 aprint_error("run next request\n"); 2171 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 2172 #endif 2173 aprint_error_dev(sdev->target->sbp->sc_fd.dev, 2174 "%s:%s: reset start\n", __func__, sdev->bustgtlun); 2175 sbp_reset_start(sdev); 2176 } 2177 2178 static void 2179 sbp_timeout(void *arg) 2180 { 2181 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2182 struct sbp_dev *sdev = ocb->sdev; 2183 2184 aprint_error_dev(sdev->target->sbp->sc_fd.dev, 2185 "%s:%s: request timeout(cmd orb:0x%08x) ... ", 2186 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2187 2188 sdev->timeout++; 2189 switch (sdev->timeout) { 2190 case 1: 2191 aprint_error("agent reset\n"); 2192 if (sdev->periph != NULL) { 2193 scsipi_periph_freeze(sdev->periph, 1); 2194 sdev->freeze++; 2195 } 2196 sbp_abort_all_ocbs(sdev, XS_TIMEOUT); 2197 sbp_agent_reset(sdev); 2198 break; 2199 case 2: 2200 case 3: 2201 sbp_target_reset(sdev, sdev->timeout - 1); 2202 break; 2203 default: 2204 aprint_error("\n"); 2205 #if 0 2206 /* XXX give up */ 2207 sbp_scsipi_detach_target(target); 2208 if (target->luns != NULL) 2209 free(target->luns, M_SBP); 2210 target->num_lun = 0; 2211 target->luns = NULL; 2212 target->fwdev = NULL; 2213 #endif 2214 } 2215 } 2216 2217 static void 2218 sbp_action1(struct sbp_softc *sc, struct scsipi_xfer *xs) 2219 { 2220 struct sbp_target *target = &sc->sc_target; 2221 struct sbp_dev *sdev = NULL; 2222 struct sbp_ocb *ocb; 2223 int speed, flag, error; 2224 void *cdb; 2225 2226 /* target:lun -> sdev mapping */ 2227 if (target->fwdev != NULL && 2228 xs->xs_periph->periph_lun < target->num_lun) { 2229 sdev = target->luns[xs->xs_periph->periph_lun]; 2230 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED && 2231 sdev->status != SBP_DEV_PROBE) 2232 sdev = NULL; 2233 } 2234 2235 if (sdev == NULL) { 2236 SBP_DEBUG(1) 2237 printf("%s:%d:%d: Invalid target (target needed)\n", 2238 sc ? device_xname(sc->sc_fd.dev) : "???", 2239 xs->xs_periph->periph_target, 2240 xs->xs_periph->periph_lun); 2241 END_DEBUG 2242 2243 xs->error = XS_DRIVER_STUFFUP; 2244 scsipi_done(xs); 2245 return; 2246 } 2247 2248 SBP_DEBUG(2) 2249 printf("%s:%d:%d:" 2250 " cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x," 2251 " flags: 0x%02x, %db cmd/%db data\n", 2252 device_xname(sc->sc_fd.dev), 2253 xs->xs_periph->periph_target, 2254 xs->xs_periph->periph_lun, 2255 xs->cmd->opcode, 2256 xs->cmd->bytes[0], xs->cmd->bytes[1], 2257 xs->cmd->bytes[2], xs->cmd->bytes[3], 2258 xs->cmd->bytes[4], xs->cmd->bytes[5], 2259 xs->cmd->bytes[6], xs->cmd->bytes[7], 2260 xs->cmd->bytes[8], 2261 xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT), 2262 xs->cmdlen, xs->datalen); 2263 END_DEBUG 2264 mutex_enter(&sc->sc_mtx); 2265 ocb = sbp_get_ocb(sdev); 2266 mutex_exit(&sc->sc_mtx); 2267 if (ocb == NULL) { 2268 xs->error = XS_REQUEUE; 2269 if (sdev->freeze == 0) { 2270 scsipi_periph_freeze(sdev->periph, 1); 2271 sdev->freeze++; 2272 } 2273 scsipi_done(xs); 2274 return; 2275 } 2276 2277 ocb->flags = OCB_ACT_CMD; 2278 ocb->sdev = sdev; 2279 ocb->xs = xs; 2280 ocb->orb[0] = htonl(1 << 31); 2281 ocb->orb[1] = 0; 2282 ocb->orb[2] = htonl(((sc->sc_fd.fc->nodeid | FWLOCALBUS) << 16)); 2283 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET); 2284 speed = uimin(target->fwdev->speed, max_speed); 2285 ocb->orb[4] = 2286 htonl(ORB_NOTIFY | ORB_CMD_SPD(speed) | ORB_CMD_MAXP(speed + 7)); 2287 if ((xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT)) == 2288 XS_CTL_DATA_IN) { 2289 ocb->orb[4] |= htonl(ORB_CMD_IN); 2290 flag = BUS_DMA_READ; 2291 } else 2292 flag = BUS_DMA_WRITE; 2293 2294 cdb = xs->cmd; 2295 memcpy((void *)&ocb->orb[5], cdb, xs->cmdlen); 2296 /* 2297 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3])); 2298 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7])); 2299 */ 2300 if (xs->datalen > 0) { 2301 error = bus_dmamap_load(sc->sc_dmat, ocb->dmamap, 2302 xs->data, xs->datalen, NULL, BUS_DMA_NOWAIT | flag); 2303 if (error) { 2304 aprint_error_dev(sc->sc_fd.dev, 2305 "DMA map load error %d\n", error); 2306 xs->error = XS_DRIVER_STUFFUP; 2307 scsipi_done(xs); 2308 } else 2309 sbp_execute_ocb(ocb, ocb->dmamap->dm_segs, 2310 ocb->dmamap->dm_nsegs); 2311 } else 2312 sbp_execute_ocb(ocb, NULL, 0); 2313 2314 return; 2315 } 2316 2317 static void 2318 sbp_execute_ocb(struct sbp_ocb *ocb, bus_dma_segment_t *segments, int seg) 2319 { 2320 struct sbp_ocb *prev; 2321 bus_dma_segment_t *s; 2322 int i; 2323 2324 SBP_DEBUG(2) 2325 printf("sbp_execute_ocb: seg %d", seg); 2326 for (i = 0; i < seg; i++) 2327 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr, 2328 (uintmax_t)segments[i].ds_len); 2329 printf("\n"); 2330 END_DEBUG 2331 2332 if (seg == 1) { 2333 /* direct pointer */ 2334 s = segments; 2335 if (s->ds_len > SBP_SEG_MAX) 2336 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2337 ocb->orb[3] = htonl(s->ds_addr); 2338 ocb->orb[4] |= htonl(s->ds_len); 2339 } else if (seg > 1) { 2340 /* page table */ 2341 for (i = 0; i < seg; i++) { 2342 s = &segments[i]; 2343 SBP_DEBUG(0) 2344 /* XXX LSI Logic "< 16 byte" bug might be hit */ 2345 if (s->ds_len < 16) 2346 printf("sbp_execute_ocb: warning, " 2347 "segment length(%jd) is less than 16." 2348 "(seg=%d/%d)\n", 2349 (uintmax_t)s->ds_len, i + 1, seg); 2350 END_DEBUG 2351 if (s->ds_len > SBP_SEG_MAX) 2352 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2353 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16); 2354 ocb->ind_ptr[i].lo = htonl(s->ds_addr); 2355 } 2356 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg); 2357 } 2358 2359 if (seg > 0) { 2360 struct sbp_softc *sc = ocb->sdev->target->sbp; 2361 const int flag = (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2362 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE; 2363 2364 bus_dmamap_sync(sc->sc_dmat, ocb->dmamap, 2365 0, ocb->dmamap->dm_mapsize, flag); 2366 } 2367 prev = sbp_enqueue_ocb(ocb->sdev, ocb); 2368 SBP_ORB_DMA_SYNC(ocb->sdev->dma, ocb->index, BUS_DMASYNC_PREWRITE); 2369 if (use_doorbell) { 2370 if (prev == NULL) { 2371 if (ocb->sdev->last_ocb != NULL) 2372 sbp_doorbell(ocb->sdev); 2373 else 2374 sbp_orb_pointer(ocb->sdev, ocb); 2375 } 2376 } else 2377 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) { 2378 ocb->sdev->flags &= ~ORB_LINK_DEAD; 2379 sbp_orb_pointer(ocb->sdev, ocb); 2380 } 2381 } 2382 2383 static struct sbp_ocb * 2384 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status) 2385 { 2386 struct sbp_softc *sc = sdev->target->sbp; 2387 struct sbp_ocb *ocb; 2388 struct sbp_ocb *next; 2389 int order = 0; 2390 2391 SBP_DEBUG(1) 2392 printf("%s:%s:%s: 0x%08x src %d\n", device_xname(sc->sc_fd.dev), 2393 __func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo), 2394 sbp_status->src); 2395 END_DEBUG 2396 mutex_enter(&sc->sc_mtx); 2397 for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) { 2398 next = STAILQ_NEXT(ocb, ocb); 2399 if (OCB_MATCH(ocb, sbp_status)) { 2400 /* found */ 2401 SBP_ORB_DMA_SYNC(sdev->dma, ocb->index, 2402 BUS_DMASYNC_POSTWRITE); 2403 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb); 2404 if (ocb->xs != NULL) 2405 callout_stop(&ocb->xs->xs_callout); 2406 if (ntohl(ocb->orb[4]) & 0xffff) { 2407 const int flag = 2408 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2409 BUS_DMASYNC_POSTREAD : 2410 BUS_DMASYNC_POSTWRITE; 2411 2412 bus_dmamap_sync(sc->sc_dmat, ocb->dmamap, 2413 0, ocb->dmamap->dm_mapsize, flag); 2414 bus_dmamap_unload(sc->sc_dmat, ocb->dmamap); 2415 2416 } 2417 if (!use_doorbell) { 2418 if (sbp_status->src == SRC_NO_NEXT) { 2419 if (next != NULL) 2420 sbp_orb_pointer(sdev, next); 2421 else if (order > 0) 2422 /* 2423 * Unordered execution 2424 * We need to send pointer for 2425 * next ORB 2426 */ 2427 sdev->flags |= ORB_LINK_DEAD; 2428 } 2429 } 2430 break; 2431 } else 2432 order++; 2433 } 2434 mutex_exit(&sc->sc_mtx); 2435 2436 if (ocb && use_doorbell) { 2437 /* 2438 * XXX this is not correct for unordered 2439 * execution. 2440 */ 2441 if (sdev->last_ocb != NULL) 2442 sbp_free_ocb(sdev, sdev->last_ocb); 2443 sdev->last_ocb = ocb; 2444 if (next != NULL && 2445 sbp_status->src == SRC_NO_NEXT) 2446 sbp_doorbell(sdev); 2447 } 2448 2449 SBP_DEBUG(0) 2450 if (ocb && order > 0) 2451 printf("%s:%s:%s: unordered execution order:%d\n", 2452 device_xname(sc->sc_fd.dev), __func__, sdev->bustgtlun, 2453 order); 2454 END_DEBUG 2455 return ocb; 2456 } 2457 2458 static struct sbp_ocb * 2459 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2460 { 2461 struct sbp_softc *sc = sdev->target->sbp; 2462 struct sbp_ocb *tocb, *prev, *prev2; 2463 2464 SBP_DEBUG(1) 2465 printf("%s:%s:%s: 0x%08jx\n", device_xname(sc->sc_fd.dev), 2466 __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2467 END_DEBUG 2468 mutex_enter(&sc->sc_mtx); 2469 prev = NULL; 2470 STAILQ_FOREACH(tocb, &sdev->ocbs, ocb) 2471 prev = tocb; 2472 prev2 = prev; 2473 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb); 2474 mutex_exit(&sc->sc_mtx); 2475 2476 callout_reset(&ocb->xs->xs_callout, mstohz(ocb->xs->timeout), 2477 sbp_timeout, ocb); 2478 2479 if (use_doorbell && prev == NULL) 2480 prev2 = sdev->last_ocb; 2481 2482 if (prev2 != NULL) { 2483 SBP_DEBUG(2) 2484 printf("linking chain 0x%jx -> 0x%jx\n", 2485 (uintmax_t)prev2->bus_addr, (uintmax_t)ocb->bus_addr); 2486 END_DEBUG 2487 /* 2488 * Suppress compiler optimization so that orb[1] must be 2489 * written first. 2490 * XXX We may need an explicit memory barrier for other 2491 * architectures other than i386/amd64. 2492 */ 2493 *(volatile uint32_t *)&prev2->orb[1] = htonl(ocb->bus_addr); 2494 *(volatile uint32_t *)&prev2->orb[0] = 0; 2495 } 2496 2497 return prev; 2498 } 2499 2500 static struct sbp_ocb * 2501 sbp_get_ocb(struct sbp_dev *sdev) 2502 { 2503 struct sbp_softc *sc = sdev->target->sbp; 2504 struct sbp_ocb *ocb; 2505 2506 KASSERT(mutex_owned(&sc->sc_mtx)); 2507 2508 ocb = STAILQ_FIRST(&sdev->free_ocbs); 2509 if (ocb == NULL) { 2510 sdev->flags |= ORB_SHORTAGE; 2511 aprint_error_dev(sc->sc_fd.dev, 2512 "ocb shortage!!!\n"); 2513 return NULL; 2514 } 2515 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb); 2516 ocb->xs = NULL; 2517 return ocb; 2518 } 2519 2520 static void 2521 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2522 { 2523 struct sbp_softc *sc = sdev->target->sbp; 2524 int count; 2525 2526 ocb->flags = 0; 2527 ocb->xs = NULL; 2528 2529 mutex_enter(&sc->sc_mtx); 2530 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb); 2531 mutex_exit(&sc->sc_mtx); 2532 if (sdev->flags & ORB_SHORTAGE) { 2533 sdev->flags &= ~ORB_SHORTAGE; 2534 count = sdev->freeze; 2535 sdev->freeze = 0; 2536 if (sdev->periph) 2537 scsipi_periph_thaw(sdev->periph, count); 2538 scsipi_channel_thaw(&sc->sc_channel, 0); 2539 } 2540 } 2541 2542 static void 2543 sbp_abort_ocb(struct sbp_ocb *ocb, int status) 2544 { 2545 struct sbp_softc *sc; 2546 struct sbp_dev *sdev; 2547 2548 sdev = ocb->sdev; 2549 sc = sdev->target->sbp; 2550 SBP_DEBUG(0) 2551 printf("%s:%s:%s: sbp_abort_ocb 0x%jx\n", device_xname(sc->sc_fd.dev), 2552 __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2553 END_DEBUG 2554 SBP_DEBUG(1) 2555 if (ocb->xs != NULL) 2556 sbp_print_scsi_cmd(ocb); 2557 END_DEBUG 2558 if (ntohl(ocb->orb[4]) & 0xffff) { 2559 const int flag = (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2560 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE; 2561 2562 bus_dmamap_sync(sc->sc_dmat, ocb->dmamap, 2563 0, ocb->dmamap->dm_mapsize, flag); 2564 bus_dmamap_unload(sc->sc_dmat, ocb->dmamap); 2565 } 2566 if (ocb->xs != NULL) { 2567 callout_stop(&ocb->xs->xs_callout); 2568 ocb->xs->error = status; 2569 scsipi_done(ocb->xs); 2570 } 2571 sbp_free_ocb(sdev, ocb); 2572 } 2573 2574 static void 2575 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status) 2576 { 2577 struct sbp_softc *sc = sdev->target->sbp; 2578 struct sbp_ocb *ocb, *next; 2579 STAILQ_HEAD(, sbp_ocb) temp; 2580 2581 mutex_enter(&sc->sc_mtx); 2582 STAILQ_INIT(&temp); 2583 STAILQ_CONCAT(&temp, &sdev->ocbs); 2584 STAILQ_INIT(&sdev->ocbs); 2585 mutex_exit(&sc->sc_mtx); 2586 2587 for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) { 2588 next = STAILQ_NEXT(ocb, ocb); 2589 sbp_abort_ocb(ocb, status); 2590 } 2591 if (sdev->last_ocb != NULL) { 2592 sbp_free_ocb(sdev, sdev->last_ocb); 2593 sdev->last_ocb = NULL; 2594 } 2595 } 2596
Indexes created Tue Sep 30 07:10:03 GMT 2025