sbp.c revision 1.34.4.1
1 /* $NetBSD: sbp.c,v 1.34.4.1 2014/05/18 17:45:38 rmind 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 1.34.4.1 2014/05/18 17:45:38 rmind 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_NOWAIT | M_ZERO); 715 716 if (newluns == NULL) { 717 aprint_error_dev(sc->sc_fd.dev, "realloc failed\n"); 718 newluns = target->luns; 719 maxlun = target->num_lun; 720 } 721 722 /* 723 * We must zero the extended region for the case 724 * realloc() doesn't allocate new buffer. 725 */ 726 if (maxlun > target->num_lun) { 727 const int sbp_dev_p_sz = sizeof(struct sbp_dev *); 728 729 memset(&newluns[target->num_lun], 0, 730 sbp_dev_p_sz * (maxlun - target->num_lun)); 731 } 732 733 target->luns = newluns; 734 target->num_lun = maxlun; 735 } 736 737 crom_init_context(&cc, target->fwdev->csrrom); 738 while (cc.depth >= 0) { 739 int new = 0; 740 741 reg = crom_search_key(&cc, CROM_LUN); 742 if (reg == NULL) 743 break; 744 lun = reg->val & 0xffff; 745 if (lun >= SBP_NUM_LUNS) { 746 aprint_error_dev(sc->sc_fd.dev, "too large lun %d\n", 747 lun); 748 goto next; 749 } 750 751 sdev = target->luns[lun]; 752 if (sdev == NULL) { 753 sdev = malloc(sizeof(struct sbp_dev), 754 M_SBP, M_NOWAIT | M_ZERO); 755 if (sdev == NULL) { 756 aprint_error_dev(sc->sc_fd.dev, 757 "malloc failed\n"); 758 goto next; 759 } 760 target->luns[lun] = sdev; 761 sdev->lun_id = lun; 762 sdev->target = target; 763 STAILQ_INIT(&sdev->ocbs); 764 callout_init(&sdev->login_callout, CALLOUT_MPSAFE); 765 callout_setfunc(&sdev->login_callout, 766 sbp_login_callout, sdev); 767 sdev->status = SBP_DEV_RESET; 768 new = 1; 769 snprintf(sdev->bustgtlun, 32, "%s:%d:%d", 770 device_xname(sc->sc_fd.dev), 771 sdev->target->target_id, 772 sdev->lun_id); 773 if (!sc->sc_lwp) 774 if (kthread_create( 775 PRI_NONE, KTHREAD_MPSAFE, NULL, 776 sbp_scsipi_scan_target, &sc->sc_target, 777 &sc->sc_lwp, 778 "sbp%d_attach", device_unit(sc->sc_fd.dev))) 779 aprint_error_dev(sc->sc_fd.dev, 780 "unable to create thread"); 781 } 782 sdev->flags |= VALID_LUN; 783 sdev->type = (reg->val & 0xff0000) >> 16; 784 785 if (new == 0) 786 goto next; 787 788 fwdma_alloc_setup(sc->sc_fd.dev, sc->sc_dmat, SBP_DMA_SIZE, 789 &sdev->dma, sizeof(uint32_t), BUS_DMA_NOWAIT); 790 if (sdev->dma.v_addr == NULL) { 791 free(sdev, M_SBP); 792 target->luns[lun] = NULL; 793 goto next; 794 } 795 sdev->ocb = (struct sbp_ocb *)sdev->dma.v_addr; 796 sdev->login = (struct sbp_login_res *)&sdev->ocb[SBP_QUEUE_LEN]; 797 memset((char *)sdev->ocb, 0, 798 sizeof(struct sbp_ocb) * SBP_QUEUE_LEN); 799 800 STAILQ_INIT(&sdev->free_ocbs); 801 for (i = 0; i < SBP_QUEUE_LEN; i++) { 802 struct sbp_ocb *ocb = &sdev->ocb[i]; 803 804 ocb->index = i; 805 ocb->bus_addr = 806 sdev->dma.bus_addr + sizeof(struct sbp_ocb) * i; 807 if (bus_dmamap_create(sc->sc_dmat, 0x100000, 808 SBP_IND_MAX, SBP_SEG_MAX, 0, 0, &ocb->dmamap)) { 809 aprint_error_dev(sc->sc_fd.dev, 810 "cannot create dmamap %d\n", i); 811 /* XXX */ 812 goto next; 813 } 814 sbp_free_ocb(sdev, ocb); /* into free queue */ 815 } 816 next: 817 crom_next(&cc); 818 } 819 820 for (lun = 0; lun < target->num_lun; lun++) { 821 sdev = target->luns[lun]; 822 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) { 823 sbp_scsipi_detach_sdev(sdev); 824 sbp_free_sdev(sdev); 825 target->luns[lun] = NULL; 826 } 827 } 828 } 829 830 static struct sbp_target * 831 sbp_alloc_target(struct sbp_softc *sc, struct fw_device *fwdev) 832 { 833 struct sbp_target *target; 834 struct crom_context cc; 835 struct csrreg *reg; 836 837 SBP_DEBUG(1) 838 printf("sbp_alloc_target\n"); 839 END_DEBUG 840 /* new target */ 841 target = &sc->sc_target; 842 target->sbp = sc; 843 target->fwdev = fwdev; 844 target->target_id = 0; 845 target->mgm_ocb_cur = NULL; 846 SBP_DEBUG(1) 847 printf("target: mgm_port: %x\n", target->mgm_lo); 848 END_DEBUG 849 STAILQ_INIT(&target->xferlist); 850 target->n_xfer = 0; 851 STAILQ_INIT(&target->mgm_ocb_queue); 852 callout_init(&target->mgm_ocb_timeout, CALLOUT_MPSAFE); 853 854 target->luns = NULL; 855 target->num_lun = 0; 856 857 /* XXX we may want to reload mgm port after each bus reset */ 858 /* XXX there might be multiple management agents */ 859 crom_init_context(&cc, target->fwdev->csrrom); 860 reg = crom_search_key(&cc, CROM_MGM); 861 if (reg == NULL || reg->val == 0) { 862 aprint_error_dev(sc->sc_fd.dev, "NULL management address\n"); 863 target->fwdev = NULL; 864 return NULL; 865 } 866 867 target->mgm_hi = 0xffff; 868 target->mgm_lo = 0xf0000000 | (reg->val << 2); 869 870 return target; 871 } 872 873 static void 874 sbp_probe_lun(struct sbp_dev *sdev) 875 { 876 struct fw_device *fwdev; 877 struct crom_context c, *cc = &c; 878 struct csrreg *reg; 879 880 memset(sdev->vendor, 0, sizeof(sdev->vendor)); 881 memset(sdev->product, 0, sizeof(sdev->product)); 882 883 fwdev = sdev->target->fwdev; 884 crom_init_context(cc, fwdev->csrrom); 885 /* get vendor string */ 886 crom_search_key(cc, CSRKEY_VENDOR); 887 crom_next(cc); 888 crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor)); 889 /* skip to the unit directory for SBP-2 */ 890 while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) { 891 if (reg->val == CSRVAL_T10SBP2) 892 break; 893 crom_next(cc); 894 } 895 /* get firmware revision */ 896 reg = crom_search_key(cc, CSRKEY_FIRM_VER); 897 if (reg != NULL) 898 snprintf(sdev->revision, sizeof(sdev->revision), "%06x", 899 reg->val); 900 /* get product string */ 901 crom_search_key(cc, CSRKEY_MODEL); 902 crom_next(cc); 903 crom_parse_text(cc, sdev->product, sizeof(sdev->product)); 904 } 905 906 static void 907 sbp_login_callout(void *arg) 908 { 909 struct sbp_dev *sdev = (struct sbp_dev *)arg; 910 911 sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL); 912 } 913 914 static void 915 sbp_login(struct sbp_dev *sdev) 916 { 917 struct sbp_softc *sc = sdev->target->sbp; 918 struct timeval delta; 919 struct timeval t; 920 int ticks = 0; 921 922 microtime(&delta); 923 timersub(&delta, &sc->sc_last_busreset, &delta); 924 t.tv_sec = login_delay / 1000; 925 t.tv_usec = (login_delay % 1000) * 1000; 926 timersub(&t, &delta, &t); 927 if (t.tv_sec >= 0 && t.tv_usec > 0) 928 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000; 929 SBP_DEBUG(0) 930 printf("%s: sec = %lld usec = %ld ticks = %d\n", __func__, 931 (long long)t.tv_sec, (long)t.tv_usec, ticks); 932 END_DEBUG 933 callout_schedule(&sdev->login_callout, ticks); 934 } 935 936 static void 937 sbp_probe_target(void *arg) 938 { 939 struct sbp_target *target = (struct sbp_target *)arg; 940 struct sbp_dev *sdev; 941 int i; 942 943 SBP_DEBUG(1) 944 printf("%s %d\n", __func__, target->target_id); 945 END_DEBUG 946 947 sbp_alloc_lun(target); 948 949 /* XXX untimeout mgm_ocb and dequeue */ 950 for (i = 0; i < target->num_lun; i++) { 951 sdev = target->luns[i]; 952 if (sdev == NULL || sdev->status == SBP_DEV_DEAD) 953 continue; 954 955 if (sdev->periph != NULL) { 956 scsipi_periph_freeze(sdev->periph, 1); 957 sdev->freeze++; 958 } 959 sbp_probe_lun(sdev); 960 sbp_show_sdev_info(sdev); 961 962 sbp_abort_all_ocbs(sdev, XS_RESET); 963 switch (sdev->status) { 964 case SBP_DEV_RESET: 965 /* new or revived target */ 966 if (auto_login) 967 sbp_login(sdev); 968 break; 969 case SBP_DEV_TOATTACH: 970 case SBP_DEV_PROBE: 971 case SBP_DEV_ATTACHED: 972 case SBP_DEV_RETRY: 973 default: 974 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL); 975 break; 976 } 977 } 978 } 979 980 static void 981 sbp_post_busreset(void *arg) 982 { 983 struct sbp_softc *sc = (struct sbp_softc *)arg; 984 struct sbp_target *target = &sc->sc_target; 985 struct fw_device *fwdev = target->fwdev; 986 int alive; 987 988 alive = SBP_FWDEV_ALIVE(fwdev); 989 SBP_DEBUG(0) 990 printf("sbp_post_busreset\n"); 991 if (!alive) 992 printf("not alive\n"); 993 END_DEBUG 994 microtime(&sc->sc_last_busreset); 995 996 if (!alive) 997 return; 998 999 scsipi_channel_freeze(&sc->sc_channel, 1); 1000 } 1001 1002 static void 1003 sbp_post_explore(void *arg) 1004 { 1005 struct sbp_softc *sc = (struct sbp_softc *)arg; 1006 struct sbp_target *target = &sc->sc_target; 1007 struct fw_device *fwdev = target->fwdev; 1008 int alive; 1009 1010 alive = SBP_FWDEV_ALIVE(fwdev); 1011 SBP_DEBUG(0) 1012 printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold); 1013 if (!alive) 1014 printf("not alive\n"); 1015 END_DEBUG 1016 if (!alive) 1017 return; 1018 1019 if (!firewire_phydma_enable) 1020 return; 1021 1022 if (sbp_cold > 0) 1023 sbp_cold--; 1024 1025 SBP_DEBUG(0) 1026 printf("sbp_post_explore: EUI:%08x%08x ", fwdev->eui.hi, fwdev->eui.lo); 1027 END_DEBUG 1028 sbp_probe_target((void *)target); 1029 if (target->num_lun == 0) 1030 sbp_free_target(target); 1031 1032 scsipi_channel_thaw(&sc->sc_channel, 1); 1033 } 1034 1035 #if NEED_RESPONSE 1036 static void 1037 sbp_loginres_callback(struct fw_xfer *xfer) 1038 { 1039 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1040 struct sbp_softc *sc = sdev->target->sbp; 1041 1042 SBP_DEBUG(1) 1043 printf("sbp_loginres_callback\n"); 1044 END_DEBUG 1045 /* recycle */ 1046 mutex_enter(&sc->sc_fwb.fwb_mtx); 1047 STAILQ_INSERT_TAIL(&sc->sc_fwb.xferlist, xfer, link); 1048 mutex_exit(&sc->sc_fwb.fwb_mtx); 1049 return; 1050 } 1051 #endif 1052 1053 static inline void 1054 sbp_xfer_free(struct fw_xfer *xfer) 1055 { 1056 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1057 struct sbp_softc *sc = sdev->target->sbp; 1058 1059 fw_xfer_unload(xfer); 1060 mutex_enter(&sc->sc_mtx); 1061 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link); 1062 mutex_exit(&sc->sc_mtx); 1063 } 1064 1065 static void 1066 sbp_reset_start_callback(struct fw_xfer *xfer) 1067 { 1068 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc; 1069 struct sbp_target *target = sdev->target; 1070 int i; 1071 1072 if (xfer->resp != 0) 1073 aprint_error("%s: sbp_reset_start failed: resp=%d\n", 1074 sdev->bustgtlun, xfer->resp); 1075 1076 for (i = 0; i < target->num_lun; i++) { 1077 tsdev = target->luns[i]; 1078 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN) 1079 sbp_login(tsdev); 1080 } 1081 } 1082 1083 static void 1084 sbp_reset_start(struct sbp_dev *sdev) 1085 { 1086 struct fw_xfer *xfer; 1087 struct fw_pkt *fp; 1088 1089 SBP_DEBUG(0) 1090 printf("%s: sbp_reset_start: %s\n", 1091 device_xname(sdev->target->sbp->sc_fd.dev), sdev->bustgtlun); 1092 END_DEBUG 1093 1094 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 1095 if (xfer == NULL) 1096 return; 1097 xfer->hand = sbp_reset_start_callback; 1098 fp = &xfer->send.hdr; 1099 fp->mode.wreqq.dest_hi = 0xffff; 1100 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START; 1101 fp->mode.wreqq.data = htonl(0xf); 1102 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1103 sbp_xfer_free(xfer); 1104 } 1105 1106 static void 1107 sbp_mgm_callback(struct fw_xfer *xfer) 1108 { 1109 struct sbp_dev *sdev; 1110 1111 sdev = (struct sbp_dev *)xfer->sc; 1112 1113 SBP_DEBUG(1) 1114 printf("%s: sbp_mgm_callback: %s\n", 1115 device_xname(sdev->target->sbp->sc_fd.dev), sdev->bustgtlun); 1116 END_DEBUG 1117 sbp_xfer_free(xfer); 1118 return; 1119 } 1120 1121 static void 1122 sbp_scsipi_scan_target(void *arg) 1123 { 1124 struct sbp_target *target = (struct sbp_target *)arg; 1125 struct sbp_softc *sc = target->sbp; 1126 struct sbp_dev *sdev; 1127 struct scsipi_channel *chan = &sc->sc_channel; 1128 struct scsibus_softc *sc_bus = device_private(sc->sc_bus); 1129 int lun, yet; 1130 1131 do { 1132 mutex_enter(&sc->sc_mtx); 1133 cv_wait_sig(&sc->sc_cv, &sc->sc_mtx); 1134 mutex_exit(&sc->sc_mtx); 1135 yet = 0; 1136 1137 for (lun = 0; lun < target->num_lun; lun++) { 1138 sdev = target->luns[lun]; 1139 if (sdev == NULL) 1140 continue; 1141 if (sdev->status != SBP_DEV_PROBE) { 1142 yet++; 1143 continue; 1144 } 1145 1146 if (sdev->periph == NULL) { 1147 if (chan->chan_nluns < target->num_lun) 1148 chan->chan_nluns = target->num_lun; 1149 1150 scsi_probe_bus(sc_bus, target->target_id, 1151 sdev->lun_id); 1152 sdev->periph = scsipi_lookup_periph(chan, 1153 target->target_id, lun); 1154 } 1155 sdev->status = SBP_DEV_ATTACHED; 1156 } 1157 } while (yet > 0); 1158 1159 sc->sc_lwp = NULL; 1160 kthread_exit(0); 1161 1162 /* NOTREACHED */ 1163 } 1164 1165 static inline void 1166 sbp_scan_dev(struct sbp_dev *sdev) 1167 { 1168 struct sbp_softc *sc = sdev->target->sbp; 1169 1170 sdev->status = SBP_DEV_PROBE; 1171 mutex_enter(&sc->sc_mtx); 1172 cv_signal(&sdev->target->sbp->sc_cv); 1173 mutex_exit(&sc->sc_mtx); 1174 } 1175 1176 1177 static void 1178 sbp_do_attach(struct fw_xfer *xfer) 1179 { 1180 struct sbp_dev *sdev; 1181 struct sbp_target *target; 1182 struct sbp_softc *sc; 1183 1184 sdev = (struct sbp_dev *)xfer->sc; 1185 target = sdev->target; 1186 sc = target->sbp; 1187 1188 SBP_DEBUG(0) 1189 printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, 1190 sdev->bustgtlun); 1191 END_DEBUG 1192 sbp_xfer_free(xfer); 1193 1194 sbp_scan_dev(sdev); 1195 return; 1196 } 1197 1198 static void 1199 sbp_agent_reset_callback(struct fw_xfer *xfer) 1200 { 1201 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1202 struct sbp_softc *sc = sdev->target->sbp; 1203 1204 SBP_DEBUG(1) 1205 printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, 1206 sdev->bustgtlun); 1207 END_DEBUG 1208 if (xfer->resp != 0) 1209 aprint_error_dev(sc->sc_fd.dev, "%s:%s: resp=%d\n", __func__, 1210 sdev->bustgtlun, xfer->resp); 1211 1212 sbp_xfer_free(xfer); 1213 if (sdev->periph != NULL) { 1214 scsipi_periph_thaw(sdev->periph, sdev->freeze); 1215 scsipi_channel_thaw(&sc->sc_channel, 0); 1216 sdev->freeze = 0; 1217 } 1218 } 1219 1220 static void 1221 sbp_agent_reset(struct sbp_dev *sdev) 1222 { 1223 struct fw_xfer *xfer; 1224 struct fw_pkt *fp; 1225 1226 SBP_DEBUG(0) 1227 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1228 __func__, sdev->bustgtlun); 1229 END_DEBUG 1230 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04); 1231 if (xfer == NULL) 1232 return; 1233 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE) 1234 xfer->hand = sbp_agent_reset_callback; 1235 else 1236 xfer->hand = sbp_do_attach; 1237 fp = &xfer->send.hdr; 1238 fp->mode.wreqq.data = htonl(0xf); 1239 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1240 sbp_xfer_free(xfer); 1241 sbp_abort_all_ocbs(sdev, XS_RESET); 1242 } 1243 1244 static void 1245 sbp_busy_timeout_callback(struct fw_xfer *xfer) 1246 { 1247 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1248 1249 SBP_DEBUG(1) 1250 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1251 __func__, sdev->bustgtlun); 1252 END_DEBUG 1253 sbp_xfer_free(xfer); 1254 sbp_agent_reset(sdev); 1255 } 1256 1257 static void 1258 sbp_busy_timeout(struct sbp_dev *sdev) 1259 { 1260 struct fw_pkt *fp; 1261 struct fw_xfer *xfer; 1262 1263 SBP_DEBUG(0) 1264 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1265 __func__, sdev->bustgtlun); 1266 END_DEBUG 1267 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 1268 if (xfer == NULL) 1269 return; 1270 xfer->hand = sbp_busy_timeout_callback; 1271 fp = &xfer->send.hdr; 1272 fp->mode.wreqq.dest_hi = 0xffff; 1273 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT; 1274 fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf); 1275 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1276 sbp_xfer_free(xfer); 1277 } 1278 1279 static void 1280 sbp_orb_pointer_callback(struct fw_xfer *xfer) 1281 { 1282 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1283 struct sbp_softc *sc = sdev->target->sbp; 1284 1285 SBP_DEBUG(1) 1286 printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, 1287 sdev->bustgtlun); 1288 END_DEBUG 1289 if (xfer->resp != 0) 1290 aprint_error_dev(sc->sc_fd.dev, "%s:%s: xfer->resp = %d\n", 1291 __func__, sdev->bustgtlun, xfer->resp); 1292 sbp_xfer_free(xfer); 1293 sdev->flags &= ~ORB_POINTER_ACTIVE; 1294 1295 if ((sdev->flags & ORB_POINTER_NEED) != 0) { 1296 struct sbp_ocb *ocb; 1297 1298 sdev->flags &= ~ORB_POINTER_NEED; 1299 ocb = STAILQ_FIRST(&sdev->ocbs); 1300 if (ocb != NULL) 1301 sbp_orb_pointer(sdev, ocb); 1302 } 1303 return; 1304 } 1305 1306 static void 1307 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb) 1308 { 1309 struct sbp_softc *sc = sdev->target->sbp; 1310 struct fw_xfer *xfer; 1311 struct fw_pkt *fp; 1312 1313 SBP_DEBUG(1) 1314 printf("%s:%s:%s: 0x%08x\n", device_xname(sc->sc_fd.dev), __func__, 1315 sdev->bustgtlun, (uint32_t)ocb->bus_addr); 1316 END_DEBUG 1317 1318 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) { 1319 SBP_DEBUG(0) 1320 printf("%s: orb pointer active\n", __func__); 1321 END_DEBUG 1322 sdev->flags |= ORB_POINTER_NEED; 1323 return; 1324 } 1325 1326 sdev->flags |= ORB_POINTER_ACTIVE; 1327 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08); 1328 if (xfer == NULL) 1329 return; 1330 xfer->hand = sbp_orb_pointer_callback; 1331 1332 fp = &xfer->send.hdr; 1333 fp->mode.wreqb.len = 8; 1334 fp->mode.wreqb.extcode = 0; 1335 xfer->send.payload[0] = 1336 htonl(((sc->sc_fd.fc->nodeid | FWLOCALBUS) << 16)); 1337 xfer->send.payload[1] = htonl((uint32_t)ocb->bus_addr); 1338 1339 if (fw_asyreq(xfer->fc, -1, xfer) != 0) { 1340 sbp_xfer_free(xfer); 1341 ocb->xs->error = XS_DRIVER_STUFFUP; 1342 scsipi_done(ocb->xs); 1343 } 1344 } 1345 1346 static void 1347 sbp_doorbell_callback(struct fw_xfer *xfer) 1348 { 1349 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1350 struct sbp_softc *sc = sdev->target->sbp; 1351 1352 SBP_DEBUG(1) 1353 printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, 1354 sdev->bustgtlun); 1355 END_DEBUG 1356 if (xfer->resp != 0) { 1357 aprint_error_dev(sc->sc_fd.dev, "%s: xfer->resp = %d\n", 1358 __func__, xfer->resp); 1359 } 1360 sbp_xfer_free(xfer); 1361 sdev->flags &= ~ORB_DOORBELL_ACTIVE; 1362 if ((sdev->flags & ORB_DOORBELL_NEED) != 0) { 1363 sdev->flags &= ~ORB_DOORBELL_NEED; 1364 sbp_doorbell(sdev); 1365 } 1366 return; 1367 } 1368 1369 static void 1370 sbp_doorbell(struct sbp_dev *sdev) 1371 { 1372 struct fw_xfer *xfer; 1373 struct fw_pkt *fp; 1374 1375 SBP_DEBUG(1) 1376 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1377 __func__, sdev->bustgtlun); 1378 END_DEBUG 1379 1380 if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) { 1381 sdev->flags |= ORB_DOORBELL_NEED; 1382 return; 1383 } 1384 sdev->flags |= ORB_DOORBELL_ACTIVE; 1385 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10); 1386 if (xfer == NULL) 1387 return; 1388 xfer->hand = sbp_doorbell_callback; 1389 fp = &xfer->send.hdr; 1390 fp->mode.wreqq.data = htonl(0xf); 1391 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1392 sbp_xfer_free(xfer); 1393 } 1394 1395 static struct fw_xfer * 1396 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset) 1397 { 1398 struct sbp_softc *sc; 1399 struct fw_xfer *xfer; 1400 struct fw_pkt *fp; 1401 struct sbp_target *target; 1402 int new = 0; 1403 1404 target = sdev->target; 1405 sc = target->sbp; 1406 mutex_enter(&sc->sc_mtx); 1407 xfer = STAILQ_FIRST(&target->xferlist); 1408 if (xfer == NULL) { 1409 if (target->n_xfer > 5 /* XXX */) { 1410 aprint_error_dev(sc->sc_fd.dev, 1411 "no more xfer for this target\n"); 1412 mutex_exit(&sc->sc_mtx); 1413 return NULL; 1414 } 1415 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0); 1416 if (xfer == NULL) { 1417 aprint_error_dev(sc->sc_fd.dev, 1418 "fw_xfer_alloc_buf failed\n"); 1419 mutex_exit(&sc->sc_mtx); 1420 return NULL; 1421 } 1422 target->n_xfer++; 1423 SBP_DEBUG(0) 1424 printf("sbp: alloc %d xfer\n", target->n_xfer); 1425 END_DEBUG 1426 new = 1; 1427 } else 1428 STAILQ_REMOVE_HEAD(&target->xferlist, link); 1429 mutex_exit(&sc->sc_mtx); 1430 1431 microtime(&xfer->tv); 1432 1433 if (new) { 1434 xfer->recv.pay_len = 0; 1435 xfer->send.spd = min(target->fwdev->speed, max_speed); 1436 xfer->fc = target->sbp->sc_fd.fc; 1437 } 1438 1439 if (tcode == FWTCODE_WREQB) 1440 xfer->send.pay_len = 8; 1441 else 1442 xfer->send.pay_len = 0; 1443 1444 xfer->sc = (void *)sdev; 1445 fp = &xfer->send.hdr; 1446 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi; 1447 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset; 1448 fp->mode.wreqq.tlrt = 0; 1449 fp->mode.wreqq.tcode = tcode; 1450 fp->mode.wreqq.pri = 0; 1451 fp->mode.wreqq.dst = FWLOCALBUS | target->fwdev->dst; 1452 1453 return xfer; 1454 } 1455 1456 static void 1457 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb) 1458 { 1459 struct fw_xfer *xfer; 1460 struct fw_pkt *fp; 1461 struct sbp_ocb *ocb; 1462 struct sbp_target *target; 1463 int nid, dv_unit; 1464 1465 target = sdev->target; 1466 nid = target->sbp->sc_fd.fc->nodeid | FWLOCALBUS; 1467 dv_unit = device_unit(target->sbp->sc_fd.dev); 1468 1469 mutex_enter(&target->sbp->sc_mtx); 1470 if (func == ORB_FUN_RUNQUEUE) { 1471 ocb = STAILQ_FIRST(&target->mgm_ocb_queue); 1472 if (target->mgm_ocb_cur != NULL || ocb == NULL) { 1473 mutex_exit(&target->sbp->sc_mtx); 1474 return; 1475 } 1476 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb); 1477 mutex_exit(&target->sbp->sc_mtx); 1478 goto start; 1479 } 1480 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 1481 mutex_exit(&target->sbp->sc_mtx); 1482 /* XXX */ 1483 return; 1484 } 1485 mutex_exit(&target->sbp->sc_mtx); 1486 ocb->flags = OCB_ACT_MGM; 1487 ocb->sdev = sdev; 1488 1489 memset(ocb->orb, 0, sizeof(ocb->orb)); 1490 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI); 1491 ocb->orb[7] = htonl(SBP_DEV2ADDR(dv_unit, sdev->lun_id)); 1492 1493 SBP_DEBUG(0) 1494 printf("%s:%s:%s: %s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1495 __func__, sdev->bustgtlun, orb_fun_name[(func>>16)&0xf]); 1496 END_DEBUG 1497 switch (func) { 1498 case ORB_FUN_LGI: 1499 { 1500 const off_t sbp_login_off = 1501 sizeof(struct sbp_ocb) * SBP_QUEUE_LEN; 1502 1503 ocb->orb[0] = ocb->orb[1] = 0; /* password */ 1504 ocb->orb[2] = htonl(nid << 16); 1505 ocb->orb[3] = htonl(sdev->dma.bus_addr + sbp_login_off); 1506 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id); 1507 if (ex_login) 1508 ocb->orb[4] |= htonl(ORB_EXV); 1509 ocb->orb[5] = htonl(SBP_LOGIN_SIZE); 1510 bus_dmamap_sync(sdev->dma.dma_tag, sdev->dma.dma_map, 1511 sbp_login_off, SBP_LOGIN_SIZE, BUS_DMASYNC_PREREAD); 1512 break; 1513 } 1514 1515 case ORB_FUN_ATA: 1516 ocb->orb[0] = htonl((0 << 16) | 0); 1517 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff); 1518 /* fall through */ 1519 case ORB_FUN_RCN: 1520 case ORB_FUN_LGO: 1521 case ORB_FUN_LUR: 1522 case ORB_FUN_RST: 1523 case ORB_FUN_ATS: 1524 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id); 1525 break; 1526 } 1527 1528 if (target->mgm_ocb_cur != NULL) { 1529 /* there is a standing ORB */ 1530 mutex_enter(&target->sbp->sc_mtx); 1531 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb); 1532 mutex_exit(&target->sbp->sc_mtx); 1533 return; 1534 } 1535 start: 1536 target->mgm_ocb_cur = ocb; 1537 1538 callout_reset(&target->mgm_ocb_timeout, 5 * hz, sbp_mgm_timeout, ocb); 1539 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0); 1540 if (xfer == NULL) 1541 return; 1542 xfer->hand = sbp_mgm_callback; 1543 1544 fp = &xfer->send.hdr; 1545 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi; 1546 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo; 1547 fp->mode.wreqb.len = 8; 1548 fp->mode.wreqb.extcode = 0; 1549 xfer->send.payload[0] = htonl(nid << 16); 1550 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff); 1551 1552 /* cache writeback & invalidate(required ORB_FUN_LGI func) */ 1553 /* when abort_ocb, should sync POST ope ? */ 1554 SBP_ORB_DMA_SYNC(sdev->dma, ocb->index, BUS_DMASYNC_PREWRITE); 1555 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1556 sbp_xfer_free(xfer); 1557 } 1558 1559 static void 1560 sbp_print_scsi_cmd(struct sbp_ocb *ocb) 1561 { 1562 struct scsipi_xfer *xs = ocb->xs; 1563 1564 printf("%s:%d:%d:" 1565 " cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x," 1566 " flags: 0x%02x, %db cmd/%db data\n", 1567 device_xname(ocb->sdev->target->sbp->sc_fd.dev), 1568 xs->xs_periph->periph_target, 1569 xs->xs_periph->periph_lun, 1570 xs->cmd->opcode, 1571 xs->cmd->bytes[0], xs->cmd->bytes[1], 1572 xs->cmd->bytes[2], xs->cmd->bytes[3], 1573 xs->cmd->bytes[4], xs->cmd->bytes[5], 1574 xs->cmd->bytes[6], xs->cmd->bytes[7], 1575 xs->cmd->bytes[8], 1576 xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT), 1577 xs->cmdlen, xs->datalen); 1578 } 1579 1580 static void 1581 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb) 1582 { 1583 struct sbp_cmd_status *sbp_cmd_status; 1584 struct scsi_sense_data *sense = &ocb->xs->sense.scsi_sense; 1585 1586 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data; 1587 1588 SBP_DEBUG(0) 1589 sbp_print_scsi_cmd(ocb); 1590 /* XXX need decode status */ 1591 printf("%s:" 1592 " SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n", 1593 ocb->sdev->bustgtlun, 1594 sbp_cmd_status->status, 1595 sbp_cmd_status->sfmt, 1596 sbp_cmd_status->valid, 1597 sbp_cmd_status->s_key, 1598 sbp_cmd_status->s_code, 1599 sbp_cmd_status->s_qlfr, 1600 sbp_status->len); 1601 END_DEBUG 1602 1603 switch (sbp_cmd_status->status) { 1604 case SCSI_CHECK: 1605 case SCSI_BUSY: 1606 case SCSI_TERMINATED: 1607 if (sbp_cmd_status->sfmt == SBP_SFMT_CURR) 1608 sense->response_code = SSD_RCODE_CURRENT; 1609 else 1610 sense->response_code = SSD_RCODE_DEFERRED; 1611 if (sbp_cmd_status->valid) 1612 sense->response_code |= SSD_RCODE_VALID; 1613 sense->flags = sbp_cmd_status->s_key; 1614 if (sbp_cmd_status->mark) 1615 sense->flags |= SSD_FILEMARK; 1616 if (sbp_cmd_status->eom) 1617 sense->flags |= SSD_EOM; 1618 if (sbp_cmd_status->ill_len) 1619 sense->flags |= SSD_ILI; 1620 1621 memcpy(sense->info, &sbp_cmd_status->info, 4); 1622 1623 if (sbp_status->len <= 1) 1624 /* XXX not scsi status. shouldn't be happened */ 1625 sense->extra_len = 0; 1626 else if (sbp_status->len <= 4) 1627 /* add_sense_code(_qual), info, cmd_spec_info */ 1628 sense->extra_len = 6; 1629 else 1630 /* fru, sense_key_spec */ 1631 sense->extra_len = 10; 1632 1633 memcpy(sense->csi, &sbp_cmd_status->cdb, 4); 1634 1635 sense->asc = sbp_cmd_status->s_code; 1636 sense->ascq = sbp_cmd_status->s_qlfr; 1637 sense->fru = sbp_cmd_status->fru; 1638 1639 memcpy(sense->sks.sks_bytes, sbp_cmd_status->s_keydep, 3); 1640 ocb->xs->error = XS_SENSE; 1641 ocb->xs->xs_status = sbp_cmd_status->status; 1642 /* 1643 { 1644 uint8_t j, *tmp; 1645 tmp = sense; 1646 for (j = 0; j < 32; j += 8) 1647 aprint_normal( 1648 "sense %02x%02x %02x%02x %02x%02x %02x%02x\n", 1649 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3], 1650 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]); 1651 1652 } 1653 */ 1654 break; 1655 default: 1656 aprint_error_dev(ocb->sdev->target->sbp->sc_fd.dev, 1657 "%s:%s: unknown scsi status 0x%x\n", 1658 __func__, ocb->sdev->bustgtlun, sbp_cmd_status->status); 1659 } 1660 } 1661 1662 static void 1663 sbp_fix_inq_data(struct sbp_ocb *ocb) 1664 { 1665 struct scsipi_xfer *xs = ocb->xs; 1666 struct sbp_dev *sdev; 1667 struct scsipi_inquiry_data *inq = 1668 (struct scsipi_inquiry_data *)xs->data; 1669 1670 sdev = ocb->sdev; 1671 1672 #if 0 1673 /* 1674 * NetBSD is assuming always 0 for EVPD-bit and 'Page Code'. 1675 */ 1676 #define SI_EVPD 0x01 1677 if (xs->cmd->bytes[0] & SI_EVPD) 1678 return; 1679 #endif 1680 SBP_DEBUG(1) 1681 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1682 __func__, sdev->bustgtlun); 1683 END_DEBUG 1684 switch (inq->device & SID_TYPE) { 1685 case T_DIRECT: 1686 #if 0 1687 /* 1688 * XXX Convert Direct Access device to RBC. 1689 * I've never seen FireWire DA devices which support READ_6. 1690 */ 1691 if ((inq->device & SID_TYPE) == T_DIRECT) 1692 inq->device |= T_SIMPLE_DIRECT; /* T_DIRECT == 0 */ 1693 #endif 1694 /* FALLTHROUGH */ 1695 1696 case T_SIMPLE_DIRECT: 1697 /* 1698 * Override vendor/product/revision information. 1699 * Some devices sometimes return strange strings. 1700 */ 1701 #if 1 1702 memcpy(inq->vendor, sdev->vendor, sizeof(inq->vendor)); 1703 memcpy(inq->product, sdev->product, sizeof(inq->product)); 1704 memcpy(inq->revision + 2, sdev->revision, 1705 sizeof(inq->revision)); 1706 #endif 1707 break; 1708 } 1709 /* 1710 * Force to enable/disable tagged queuing. 1711 * XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page. 1712 */ 1713 if (sbp_tags > 0) 1714 inq->flags3 |= SID_CmdQue; 1715 else if (sbp_tags < 0) 1716 inq->flags3 &= ~SID_CmdQue; 1717 1718 } 1719 1720 static void 1721 sbp_recv(struct fw_xfer *xfer) 1722 { 1723 struct fw_pkt *rfp; 1724 #if NEED_RESPONSE 1725 struct fw_pkt *sfp; 1726 #endif 1727 struct sbp_softc *sc; 1728 struct sbp_dev *sdev; 1729 struct sbp_ocb *ocb; 1730 struct sbp_login_res *login_res = NULL; 1731 struct sbp_status *sbp_status; 1732 struct sbp_target *target; 1733 int orb_fun, status_valid0, status_valid, l, reset_agent = 0; 1734 uint32_t addr; 1735 /* 1736 uint32_t *ld; 1737 ld = xfer->recv.buf; 1738 printf("sbp %x %d %d %08x %08x %08x %08x\n", 1739 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1740 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1741 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11])); 1742 */ 1743 1744 sc = (struct sbp_softc *)xfer->sc; 1745 if (xfer->resp != 0) { 1746 aprint_error_dev(sc->sc_fd.dev, 1747 "sbp_recv: xfer->resp = %d\n", xfer->resp); 1748 goto done0; 1749 } 1750 if (xfer->recv.payload == NULL) { 1751 aprint_error_dev(sc->sc_fd.dev, 1752 "sbp_recv: xfer->recv.payload == NULL\n"); 1753 goto done0; 1754 } 1755 rfp = &xfer->recv.hdr; 1756 if (rfp->mode.wreqb.tcode != FWTCODE_WREQB) { 1757 aprint_error_dev(sc->sc_fd.dev, 1758 "sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode); 1759 goto done0; 1760 } 1761 sbp_status = (struct sbp_status *)xfer->recv.payload; 1762 addr = rfp->mode.wreqb.dest_lo; 1763 SBP_DEBUG(2) 1764 printf("received address 0x%x\n", addr); 1765 END_DEBUG 1766 target = &sc->sc_target; 1767 l = SBP_ADDR2LUN(addr); 1768 if (l >= target->num_lun || target->luns[l] == NULL) { 1769 aprint_error_dev(sc->sc_fd.dev, 1770 "sbp_recv1: invalid lun %d (target=%d)\n", 1771 l, target->target_id); 1772 goto done0; 1773 } 1774 sdev = target->luns[l]; 1775 1776 ocb = NULL; 1777 switch (sbp_status->src) { 1778 case SRC_NEXT_EXISTS: 1779 case SRC_NO_NEXT: 1780 /* check mgm_ocb_cur first */ 1781 ocb = target->mgm_ocb_cur; 1782 if (ocb != NULL) 1783 if (OCB_MATCH(ocb, sbp_status)) { 1784 callout_stop(&target->mgm_ocb_timeout); 1785 target->mgm_ocb_cur = NULL; 1786 break; 1787 } 1788 ocb = sbp_dequeue_ocb(sdev, sbp_status); 1789 if (ocb == NULL) 1790 aprint_error_dev(sc->sc_fd.dev, 1791 "%s:%s: No ocb(%x) on the queue\n", __func__, 1792 sdev->bustgtlun, ntohl(sbp_status->orb_lo)); 1793 break; 1794 case SRC_UNSOL: 1795 /* unsolicit */ 1796 aprint_error_dev(sc->sc_fd.dev, 1797 "%s:%s: unsolicit status received\n", 1798 __func__, sdev->bustgtlun); 1799 break; 1800 default: 1801 aprint_error_dev(sc->sc_fd.dev, 1802 "%s:%s: unknown sbp_status->src\n", 1803 __func__, sdev->bustgtlun); 1804 } 1805 1806 status_valid0 = (sbp_status->src < 2 1807 && sbp_status->resp == SBP_REQ_CMP 1808 && sbp_status->dead == 0); 1809 status_valid = (status_valid0 && sbp_status->status == 0); 1810 1811 if (!status_valid0 || debug > 2) { 1812 int status; 1813 SBP_DEBUG(0) 1814 printf("%s:%s:%s: ORB status src:%x resp:%x dead:%x" 1815 " len:%x stat:%x orb:%x%08x\n", 1816 device_xname(sc->sc_fd.dev), __func__, sdev->bustgtlun, 1817 sbp_status->src, sbp_status->resp, sbp_status->dead, 1818 sbp_status->len, sbp_status->status, 1819 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo)); 1820 END_DEBUG 1821 printf("%s:%s\n", device_xname(sc->sc_fd.dev), sdev->bustgtlun); 1822 status = sbp_status->status; 1823 switch (sbp_status->resp) { 1824 case SBP_REQ_CMP: 1825 if (status > MAX_ORB_STATUS0) 1826 printf("%s\n", orb_status0[MAX_ORB_STATUS0]); 1827 else 1828 printf("%s\n", orb_status0[status]); 1829 break; 1830 case SBP_TRANS_FAIL: 1831 printf("Obj: %s, Error: %s\n", 1832 orb_status1_object[(status>>6) & 3], 1833 orb_status1_serial_bus_error[status & 0xf]); 1834 break; 1835 case SBP_ILLE_REQ: 1836 printf("Illegal request\n"); 1837 break; 1838 case SBP_VEND_DEP: 1839 printf("Vendor dependent\n"); 1840 break; 1841 default: 1842 printf("unknown respose code %d\n", sbp_status->resp); 1843 } 1844 } 1845 1846 /* we have to reset the fetch agent if it's dead */ 1847 if (sbp_status->dead) { 1848 if (sdev->periph != NULL) { 1849 scsipi_periph_freeze(sdev->periph, 1); 1850 sdev->freeze++; 1851 } 1852 reset_agent = 1; 1853 } 1854 1855 if (ocb == NULL) 1856 goto done; 1857 1858 switch (ntohl(ocb->orb[4]) & ORB_FMT_MSK) { 1859 case ORB_FMT_NOP: 1860 break; 1861 case ORB_FMT_VED: 1862 break; 1863 case ORB_FMT_STD: 1864 switch (ocb->flags) { 1865 case OCB_ACT_MGM: 1866 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK; 1867 reset_agent = 0; 1868 switch (orb_fun) { 1869 case ORB_FUN_LGI: 1870 { 1871 const struct fwdma_alloc *dma = &sdev->dma; 1872 const off_t sbp_login_off = 1873 sizeof(struct sbp_ocb) * SBP_QUEUE_LEN; 1874 1875 bus_dmamap_sync(dma->dma_tag, dma->dma_map, 1876 sbp_login_off, SBP_LOGIN_SIZE, 1877 BUS_DMASYNC_POSTREAD); 1878 login_res = sdev->login; 1879 login_res->len = ntohs(login_res->len); 1880 login_res->id = ntohs(login_res->id); 1881 login_res->cmd_hi = ntohs(login_res->cmd_hi); 1882 login_res->cmd_lo = ntohl(login_res->cmd_lo); 1883 if (status_valid) { 1884 SBP_DEBUG(0) 1885 printf("%s:%s:%s: login:" 1886 " len %d, ID %d, cmd %08x%08x," 1887 " recon_hold %d\n", 1888 device_xname(sc->sc_fd.dev), 1889 __func__, sdev->bustgtlun, 1890 login_res->len, login_res->id, 1891 login_res->cmd_hi, 1892 login_res->cmd_lo, 1893 ntohs(login_res->recon_hold)); 1894 END_DEBUG 1895 sbp_busy_timeout(sdev); 1896 } else { 1897 /* forgot logout? */ 1898 aprint_error_dev(sc->sc_fd.dev, 1899 "%s:%s: login failed\n", 1900 __func__, sdev->bustgtlun); 1901 sdev->status = SBP_DEV_RESET; 1902 } 1903 break; 1904 } 1905 case ORB_FUN_RCN: 1906 login_res = sdev->login; 1907 if (status_valid) { 1908 SBP_DEBUG(0) 1909 printf("%s:%s:%s: reconnect:" 1910 " len %d, ID %d, cmd %08x%08x\n", 1911 device_xname(sc->sc_fd.dev), 1912 __func__, sdev->bustgtlun, 1913 login_res->len, login_res->id, 1914 login_res->cmd_hi, 1915 login_res->cmd_lo); 1916 END_DEBUG 1917 sbp_agent_reset(sdev); 1918 } else { 1919 /* reconnection hold time exceed? */ 1920 SBP_DEBUG(0) 1921 aprint_error_dev(sc->sc_fd.dev, 1922 "%s:%s: reconnect failed\n", 1923 __func__, sdev->bustgtlun); 1924 END_DEBUG 1925 sbp_login(sdev); 1926 } 1927 break; 1928 case ORB_FUN_LGO: 1929 sdev->status = SBP_DEV_RESET; 1930 break; 1931 case ORB_FUN_RST: 1932 sbp_busy_timeout(sdev); 1933 break; 1934 case ORB_FUN_LUR: 1935 case ORB_FUN_ATA: 1936 case ORB_FUN_ATS: 1937 sbp_agent_reset(sdev); 1938 break; 1939 default: 1940 aprint_error_dev(sc->sc_fd.dev, 1941 "%s:%s: unknown function %d\n", 1942 __func__, sdev->bustgtlun, orb_fun); 1943 break; 1944 } 1945 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 1946 break; 1947 case OCB_ACT_CMD: 1948 sdev->timeout = 0; 1949 if (ocb->xs != NULL) { 1950 struct scsipi_xfer *xs = ocb->xs; 1951 1952 if (sbp_status->len > 1) 1953 sbp_scsi_status(sbp_status, ocb); 1954 else 1955 if (sbp_status->resp != SBP_REQ_CMP) 1956 xs->error = XS_DRIVER_STUFFUP; 1957 else { 1958 xs->error = XS_NOERROR; 1959 xs->resid = 0; 1960 } 1961 /* fix up inq data */ 1962 if (xs->cmd->opcode == INQUIRY) 1963 sbp_fix_inq_data(ocb); 1964 scsipi_done(xs); 1965 } 1966 break; 1967 default: 1968 break; 1969 } 1970 } 1971 1972 if (!use_doorbell) 1973 sbp_free_ocb(sdev, ocb); 1974 done: 1975 if (reset_agent) 1976 sbp_agent_reset(sdev); 1977 1978 done0: 1979 xfer->recv.pay_len = SBP_RECV_LEN; 1980 /* The received packet is usually small enough to be stored within 1981 * the buffer. In that case, the controller return ack_complete and 1982 * no respose is necessary. 1983 * 1984 * XXX fwohci.c and firewire.c should inform event_code such as 1985 * ack_complete or ack_pending to upper driver. 1986 */ 1987 #if NEED_RESPONSE 1988 xfer->send.off = 0; 1989 sfp = (struct fw_pkt *)xfer->send.buf; 1990 sfp->mode.wres.dst = rfp->mode.wreqb.src; 1991 xfer->dst = sfp->mode.wres.dst; 1992 xfer->spd = min(sdev->target->fwdev->speed, max_speed); 1993 xfer->hand = sbp_loginres_callback; 1994 1995 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt; 1996 sfp->mode.wres.tcode = FWTCODE_WRES; 1997 sfp->mode.wres.rtcode = 0; 1998 sfp->mode.wres.pri = 0; 1999 2000 if (fw_asyreq(xfer->fc, -1, xfer) != 0) { 2001 aprint_error_dev(sc->sc_fd.dev, "mgm_orb failed\n"); 2002 mutex_enter(&sc->sc_fwb.fwb_mtx); 2003 STAILQ_INSERT_TAIL(&sc->sc_fwb.xferlist, xfer, link); 2004 mutex_exit(&sc->sc_fwb.fwb_mtx); 2005 } 2006 #else 2007 /* recycle */ 2008 mutex_enter(&sc->sc_fwb.fwb_mtx); 2009 STAILQ_INSERT_TAIL(&sc->sc_fwb.xferlist, xfer, link); 2010 mutex_exit(&sc->sc_fwb.fwb_mtx); 2011 #endif 2012 2013 return; 2014 2015 } 2016 2017 static int 2018 sbp_logout_all(struct sbp_softc *sbp) 2019 { 2020 struct sbp_target *target; 2021 struct sbp_dev *sdev; 2022 int i; 2023 2024 SBP_DEBUG(0) 2025 printf("sbp_logout_all\n"); 2026 END_DEBUG 2027 target = &sbp->sc_target; 2028 if (target->luns != NULL) { 2029 for (i = 0; i < target->num_lun; i++) { 2030 sdev = target->luns[i]; 2031 if (sdev == NULL) 2032 continue; 2033 callout_stop(&sdev->login_callout); 2034 if (sdev->status >= SBP_DEV_TOATTACH && 2035 sdev->status <= SBP_DEV_ATTACHED) 2036 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL); 2037 } 2038 } 2039 2040 return 0; 2041 } 2042 2043 static void 2044 sbp_free_sdev(struct sbp_dev *sdev) 2045 { 2046 struct sbp_softc *sc = sdev->target->sbp; 2047 int i; 2048 2049 if (sdev == NULL) 2050 return; 2051 for (i = 0; i < SBP_QUEUE_LEN; i++) 2052 bus_dmamap_destroy(sc->sc_dmat, sdev->ocb[i].dmamap); 2053 fwdma_free(sdev->dma.dma_tag, sdev->dma.dma_map, sdev->dma.v_addr); 2054 free(sdev, M_SBP); 2055 sdev = NULL; 2056 } 2057 2058 static void 2059 sbp_free_target(struct sbp_target *target) 2060 { 2061 struct fw_xfer *xfer, *next; 2062 int i; 2063 2064 if (target->luns == NULL) 2065 return; 2066 callout_stop(&target->mgm_ocb_timeout); 2067 for (i = 0; i < target->num_lun; i++) 2068 sbp_free_sdev(target->luns[i]); 2069 2070 for (xfer = STAILQ_FIRST(&target->xferlist); 2071 xfer != NULL; xfer = next) { 2072 next = STAILQ_NEXT(xfer, link); 2073 fw_xfer_free_buf(xfer); 2074 } 2075 STAILQ_INIT(&target->xferlist); 2076 free(target->luns, M_SBP); 2077 target->num_lun = 0; 2078 target->luns = NULL; 2079 target->fwdev = NULL; 2080 } 2081 2082 static void 2083 sbp_scsipi_detach_sdev(struct sbp_dev *sdev) 2084 { 2085 struct sbp_target *target; 2086 struct sbp_softc *sbp; 2087 2088 if (sdev == NULL) 2089 return; 2090 2091 target = sdev->target; 2092 if (target == NULL) 2093 return; 2094 2095 sbp = target->sbp; 2096 2097 if (sdev->status == SBP_DEV_DEAD) 2098 return; 2099 if (sdev->status == SBP_DEV_RESET) 2100 return; 2101 if (sdev->periph != NULL) { 2102 scsipi_periph_thaw(sdev->periph, sdev->freeze); 2103 scsipi_channel_thaw(&sbp->sc_channel, 0); /* XXXX */ 2104 sdev->freeze = 0; 2105 if (scsipi_target_detach(&sbp->sc_channel, 2106 target->target_id, sdev->lun_id, DETACH_FORCE) != 0) { 2107 aprint_error_dev(sbp->sc_fd.dev, "detach failed\n"); 2108 } 2109 sdev->periph = NULL; 2110 } 2111 sbp_abort_all_ocbs(sdev, XS_DRIVER_STUFFUP); 2112 } 2113 2114 static void 2115 sbp_scsipi_detach_target(struct sbp_target *target) 2116 { 2117 struct sbp_softc *sbp = target->sbp; 2118 int i; 2119 2120 if (target->luns != NULL) { 2121 SBP_DEBUG(0) 2122 printf("sbp_detach_target %d\n", target->target_id); 2123 END_DEBUG 2124 for (i = 0; i < target->num_lun; i++) 2125 sbp_scsipi_detach_sdev(target->luns[i]); 2126 if (config_detach(sbp->sc_bus, DETACH_FORCE) != 0) 2127 aprint_error_dev(sbp->sc_fd.dev, "%d detach failed\n", 2128 target->target_id); 2129 sbp->sc_bus = NULL; 2130 } 2131 } 2132 2133 static void 2134 sbp_target_reset(struct sbp_dev *sdev, int method) 2135 { 2136 struct sbp_target *target = sdev->target; 2137 struct sbp_dev *tsdev; 2138 int i; 2139 2140 for (i = 0; i < target->num_lun; i++) { 2141 tsdev = target->luns[i]; 2142 if (tsdev == NULL) 2143 continue; 2144 if (tsdev->status == SBP_DEV_DEAD) 2145 continue; 2146 if (tsdev->status == SBP_DEV_RESET) 2147 continue; 2148 if (sdev->periph != NULL) { 2149 scsipi_periph_freeze(tsdev->periph, 1); 2150 tsdev->freeze++; 2151 } 2152 sbp_abort_all_ocbs(tsdev, XS_TIMEOUT); 2153 if (method == 2) 2154 tsdev->status = SBP_DEV_LOGIN; 2155 } 2156 switch (method) { 2157 case 1: 2158 aprint_error("target reset\n"); 2159 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL); 2160 break; 2161 case 2: 2162 aprint_error("reset start\n"); 2163 sbp_reset_start(sdev); 2164 break; 2165 } 2166 } 2167 2168 static void 2169 sbp_mgm_timeout(void *arg) 2170 { 2171 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2172 struct sbp_dev *sdev = ocb->sdev; 2173 struct sbp_target *target = sdev->target; 2174 2175 aprint_error_dev(sdev->target->sbp->sc_fd.dev, 2176 "%s:%s: request timeout(mgm orb:0x%08x) ... ", 2177 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2178 target->mgm_ocb_cur = NULL; 2179 sbp_free_ocb(sdev, ocb); 2180 #if 0 2181 /* XXX */ 2182 aprint_error("run next request\n"); 2183 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 2184 #endif 2185 aprint_error_dev(sdev->target->sbp->sc_fd.dev, 2186 "%s:%s: reset start\n", __func__, sdev->bustgtlun); 2187 sbp_reset_start(sdev); 2188 } 2189 2190 static void 2191 sbp_timeout(void *arg) 2192 { 2193 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2194 struct sbp_dev *sdev = ocb->sdev; 2195 2196 aprint_error_dev(sdev->target->sbp->sc_fd.dev, 2197 "%s:%s: request timeout(cmd orb:0x%08x) ... ", 2198 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2199 2200 sdev->timeout++; 2201 switch (sdev->timeout) { 2202 case 1: 2203 aprint_error("agent reset\n"); 2204 if (sdev->periph != NULL) { 2205 scsipi_periph_freeze(sdev->periph, 1); 2206 sdev->freeze++; 2207 } 2208 sbp_abort_all_ocbs(sdev, XS_TIMEOUT); 2209 sbp_agent_reset(sdev); 2210 break; 2211 case 2: 2212 case 3: 2213 sbp_target_reset(sdev, sdev->timeout - 1); 2214 break; 2215 default: 2216 aprint_error("\n"); 2217 #if 0 2218 /* XXX give up */ 2219 sbp_scsipi_detach_target(target); 2220 if (target->luns != NULL) 2221 free(target->luns, M_SBP); 2222 target->num_lun = 0; 2223 target->luns = NULL; 2224 target->fwdev = NULL; 2225 #endif 2226 } 2227 } 2228 2229 static void 2230 sbp_action1(struct sbp_softc *sc, struct scsipi_xfer *xs) 2231 { 2232 struct sbp_target *target = &sc->sc_target; 2233 struct sbp_dev *sdev = NULL; 2234 struct sbp_ocb *ocb; 2235 int speed, flag, error; 2236 void *cdb; 2237 2238 /* target:lun -> sdev mapping */ 2239 if (target->fwdev != NULL && 2240 xs->xs_periph->periph_lun < target->num_lun) { 2241 sdev = target->luns[xs->xs_periph->periph_lun]; 2242 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED && 2243 sdev->status != SBP_DEV_PROBE) 2244 sdev = NULL; 2245 } 2246 2247 if (sdev == NULL) { 2248 SBP_DEBUG(1) 2249 printf("%s:%d:%d: Invalid target (target needed)\n", 2250 sc ? device_xname(sc->sc_fd.dev) : "???", 2251 xs->xs_periph->periph_target, 2252 xs->xs_periph->periph_lun); 2253 END_DEBUG 2254 2255 xs->error = XS_DRIVER_STUFFUP; 2256 scsipi_done(xs); 2257 return; 2258 } 2259 2260 SBP_DEBUG(2) 2261 printf("%s:%d:%d:" 2262 " cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x," 2263 " flags: 0x%02x, %db cmd/%db data\n", 2264 device_xname(sc->sc_fd.dev), 2265 xs->xs_periph->periph_target, 2266 xs->xs_periph->periph_lun, 2267 xs->cmd->opcode, 2268 xs->cmd->bytes[0], xs->cmd->bytes[1], 2269 xs->cmd->bytes[2], xs->cmd->bytes[3], 2270 xs->cmd->bytes[4], xs->cmd->bytes[5], 2271 xs->cmd->bytes[6], xs->cmd->bytes[7], 2272 xs->cmd->bytes[8], 2273 xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT), 2274 xs->cmdlen, xs->datalen); 2275 END_DEBUG 2276 mutex_enter(&sc->sc_mtx); 2277 ocb = sbp_get_ocb(sdev); 2278 mutex_exit(&sc->sc_mtx); 2279 if (ocb == NULL) { 2280 xs->error = XS_REQUEUE; 2281 if (sdev->freeze == 0) { 2282 scsipi_periph_freeze(sdev->periph, 1); 2283 sdev->freeze++; 2284 } 2285 scsipi_done(xs); 2286 return; 2287 } 2288 2289 ocb->flags = OCB_ACT_CMD; 2290 ocb->sdev = sdev; 2291 ocb->xs = xs; 2292 ocb->orb[0] = htonl(1 << 31); 2293 ocb->orb[1] = 0; 2294 ocb->orb[2] = htonl(((sc->sc_fd.fc->nodeid | FWLOCALBUS) << 16)); 2295 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET); 2296 speed = min(target->fwdev->speed, max_speed); 2297 ocb->orb[4] = 2298 htonl(ORB_NOTIFY | ORB_CMD_SPD(speed) | ORB_CMD_MAXP(speed + 7)); 2299 if ((xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT)) == 2300 XS_CTL_DATA_IN) { 2301 ocb->orb[4] |= htonl(ORB_CMD_IN); 2302 flag = BUS_DMA_READ; 2303 } else 2304 flag = BUS_DMA_WRITE; 2305 2306 cdb = xs->cmd; 2307 memcpy((void *)&ocb->orb[5], cdb, xs->cmdlen); 2308 /* 2309 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3])); 2310 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7])); 2311 */ 2312 if (xs->datalen > 0) { 2313 error = bus_dmamap_load(sc->sc_dmat, ocb->dmamap, 2314 xs->data, xs->datalen, NULL, BUS_DMA_NOWAIT | flag); 2315 if (error) { 2316 aprint_error_dev(sc->sc_fd.dev, 2317 "DMA map load error %d\n", error); 2318 xs->error = XS_DRIVER_STUFFUP; 2319 scsipi_done(xs); 2320 } else 2321 sbp_execute_ocb(ocb, ocb->dmamap->dm_segs, 2322 ocb->dmamap->dm_nsegs); 2323 } else 2324 sbp_execute_ocb(ocb, NULL, 0); 2325 2326 return; 2327 } 2328 2329 static void 2330 sbp_execute_ocb(struct sbp_ocb *ocb, bus_dma_segment_t *segments, int seg) 2331 { 2332 struct sbp_ocb *prev; 2333 bus_dma_segment_t *s; 2334 int i; 2335 2336 SBP_DEBUG(2) 2337 printf("sbp_execute_ocb: seg %d", seg); 2338 for (i = 0; i < seg; i++) 2339 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr, 2340 (uintmax_t)segments[i].ds_len); 2341 printf("\n"); 2342 END_DEBUG 2343 2344 if (seg == 1) { 2345 /* direct pointer */ 2346 s = segments; 2347 if (s->ds_len > SBP_SEG_MAX) 2348 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2349 ocb->orb[3] = htonl(s->ds_addr); 2350 ocb->orb[4] |= htonl(s->ds_len); 2351 } else if (seg > 1) { 2352 /* page table */ 2353 for (i = 0; i < seg; i++) { 2354 s = &segments[i]; 2355 SBP_DEBUG(0) 2356 /* XXX LSI Logic "< 16 byte" bug might be hit */ 2357 if (s->ds_len < 16) 2358 printf("sbp_execute_ocb: warning, " 2359 "segment length(%jd) is less than 16." 2360 "(seg=%d/%d)\n", 2361 (uintmax_t)s->ds_len, i + 1, seg); 2362 END_DEBUG 2363 if (s->ds_len > SBP_SEG_MAX) 2364 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2365 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16); 2366 ocb->ind_ptr[i].lo = htonl(s->ds_addr); 2367 } 2368 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg); 2369 } 2370 2371 if (seg > 0) { 2372 struct sbp_softc *sc = ocb->sdev->target->sbp; 2373 const int flag = (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2374 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE; 2375 2376 bus_dmamap_sync(sc->sc_dmat, ocb->dmamap, 2377 0, ocb->dmamap->dm_mapsize, flag); 2378 } 2379 prev = sbp_enqueue_ocb(ocb->sdev, ocb); 2380 SBP_ORB_DMA_SYNC(ocb->sdev->dma, ocb->index, BUS_DMASYNC_PREWRITE); 2381 if (use_doorbell) { 2382 if (prev == NULL) { 2383 if (ocb->sdev->last_ocb != NULL) 2384 sbp_doorbell(ocb->sdev); 2385 else 2386 sbp_orb_pointer(ocb->sdev, ocb); 2387 } 2388 } else 2389 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) { 2390 ocb->sdev->flags &= ~ORB_LINK_DEAD; 2391 sbp_orb_pointer(ocb->sdev, ocb); 2392 } 2393 } 2394 2395 static struct sbp_ocb * 2396 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status) 2397 { 2398 struct sbp_softc *sc = sdev->target->sbp; 2399 struct sbp_ocb *ocb; 2400 struct sbp_ocb *next; 2401 int order = 0; 2402 2403 SBP_DEBUG(1) 2404 printf("%s:%s:%s: 0x%08x src %d\n", device_xname(sc->sc_fd.dev), 2405 __func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo), 2406 sbp_status->src); 2407 END_DEBUG 2408 mutex_enter(&sc->sc_mtx); 2409 for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) { 2410 next = STAILQ_NEXT(ocb, ocb); 2411 if (OCB_MATCH(ocb, sbp_status)) { 2412 /* found */ 2413 SBP_ORB_DMA_SYNC(sdev->dma, ocb->index, 2414 BUS_DMASYNC_POSTWRITE); 2415 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb); 2416 if (ocb->xs != NULL) 2417 callout_stop(&ocb->xs->xs_callout); 2418 if (ntohl(ocb->orb[4]) & 0xffff) { 2419 const int flag = 2420 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2421 BUS_DMASYNC_POSTREAD : 2422 BUS_DMASYNC_POSTWRITE; 2423 2424 bus_dmamap_sync(sc->sc_dmat, ocb->dmamap, 2425 0, ocb->dmamap->dm_mapsize, flag); 2426 bus_dmamap_unload(sc->sc_dmat, ocb->dmamap); 2427 2428 } 2429 if (!use_doorbell) { 2430 if (sbp_status->src == SRC_NO_NEXT) { 2431 if (next != NULL) 2432 sbp_orb_pointer(sdev, next); 2433 else if (order > 0) 2434 /* 2435 * Unordered execution 2436 * We need to send pointer for 2437 * next ORB 2438 */ 2439 sdev->flags |= ORB_LINK_DEAD; 2440 } 2441 } 2442 break; 2443 } else 2444 order++; 2445 } 2446 mutex_exit(&sc->sc_mtx); 2447 2448 if (ocb && use_doorbell) { 2449 /* 2450 * XXX this is not correct for unordered 2451 * execution. 2452 */ 2453 if (sdev->last_ocb != NULL) 2454 sbp_free_ocb(sdev, sdev->last_ocb); 2455 sdev->last_ocb = ocb; 2456 if (next != NULL && 2457 sbp_status->src == SRC_NO_NEXT) 2458 sbp_doorbell(sdev); 2459 } 2460 2461 SBP_DEBUG(0) 2462 if (ocb && order > 0) 2463 printf("%s:%s:%s: unordered execution order:%d\n", 2464 device_xname(sc->sc_fd.dev), __func__, sdev->bustgtlun, 2465 order); 2466 END_DEBUG 2467 return ocb; 2468 } 2469 2470 static struct sbp_ocb * 2471 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2472 { 2473 struct sbp_softc *sc = sdev->target->sbp; 2474 struct sbp_ocb *tocb, *prev, *prev2; 2475 2476 SBP_DEBUG(1) 2477 printf("%s:%s:%s: 0x%08jx\n", device_xname(sc->sc_fd.dev), 2478 __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2479 END_DEBUG 2480 mutex_enter(&sc->sc_mtx); 2481 prev = NULL; 2482 STAILQ_FOREACH(tocb, &sdev->ocbs, ocb) 2483 prev = tocb; 2484 prev2 = prev; 2485 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb); 2486 mutex_exit(&sc->sc_mtx); 2487 2488 callout_reset(&ocb->xs->xs_callout, mstohz(ocb->xs->timeout), 2489 sbp_timeout, ocb); 2490 2491 if (use_doorbell && prev == NULL) 2492 prev2 = sdev->last_ocb; 2493 2494 if (prev2 != NULL) { 2495 SBP_DEBUG(2) 2496 printf("linking chain 0x%jx -> 0x%jx\n", 2497 (uintmax_t)prev2->bus_addr, (uintmax_t)ocb->bus_addr); 2498 END_DEBUG 2499 /* 2500 * Suppress compiler optimization so that orb[1] must be 2501 * written first. 2502 * XXX We may need an explicit memory barrier for other 2503 * architectures other than i386/amd64. 2504 */ 2505 *(volatile uint32_t *)&prev2->orb[1] = htonl(ocb->bus_addr); 2506 *(volatile uint32_t *)&prev2->orb[0] = 0; 2507 } 2508 2509 return prev; 2510 } 2511 2512 static struct sbp_ocb * 2513 sbp_get_ocb(struct sbp_dev *sdev) 2514 { 2515 struct sbp_softc *sc = sdev->target->sbp; 2516 struct sbp_ocb *ocb; 2517 2518 KASSERT(mutex_owned(&sc->sc_mtx)); 2519 2520 ocb = STAILQ_FIRST(&sdev->free_ocbs); 2521 if (ocb == NULL) { 2522 sdev->flags |= ORB_SHORTAGE; 2523 aprint_error_dev(sc->sc_fd.dev, 2524 "ocb shortage!!!\n"); 2525 return NULL; 2526 } 2527 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb); 2528 ocb->xs = NULL; 2529 return ocb; 2530 } 2531 2532 static void 2533 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2534 { 2535 struct sbp_softc *sc = sdev->target->sbp; 2536 int count; 2537 2538 ocb->flags = 0; 2539 ocb->xs = NULL; 2540 2541 mutex_enter(&sc->sc_mtx); 2542 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb); 2543 mutex_exit(&sc->sc_mtx); 2544 if (sdev->flags & ORB_SHORTAGE) { 2545 sdev->flags &= ~ORB_SHORTAGE; 2546 count = sdev->freeze; 2547 sdev->freeze = 0; 2548 if (sdev->periph) 2549 scsipi_periph_thaw(sdev->periph, count); 2550 scsipi_channel_thaw(&sc->sc_channel, 0); 2551 } 2552 } 2553 2554 static void 2555 sbp_abort_ocb(struct sbp_ocb *ocb, int status) 2556 { 2557 struct sbp_softc *sc; 2558 struct sbp_dev *sdev; 2559 2560 sdev = ocb->sdev; 2561 sc = sdev->target->sbp; 2562 SBP_DEBUG(0) 2563 printf("%s:%s:%s: sbp_abort_ocb 0x%jx\n", device_xname(sc->sc_fd.dev), 2564 __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2565 END_DEBUG 2566 SBP_DEBUG(1) 2567 if (ocb->xs != NULL) 2568 sbp_print_scsi_cmd(ocb); 2569 END_DEBUG 2570 if (ntohl(ocb->orb[4]) & 0xffff) { 2571 const int flag = (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2572 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE; 2573 2574 bus_dmamap_sync(sc->sc_dmat, ocb->dmamap, 2575 0, ocb->dmamap->dm_mapsize, flag); 2576 bus_dmamap_unload(sc->sc_dmat, ocb->dmamap); 2577 } 2578 if (ocb->xs != NULL) { 2579 callout_stop(&ocb->xs->xs_callout); 2580 ocb->xs->error = status; 2581 scsipi_done(ocb->xs); 2582 } 2583 sbp_free_ocb(sdev, ocb); 2584 } 2585 2586 static void 2587 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status) 2588 { 2589 struct sbp_softc *sc = sdev->target->sbp; 2590 struct sbp_ocb *ocb, *next; 2591 STAILQ_HEAD(, sbp_ocb) temp; 2592 2593 mutex_enter(&sc->sc_mtx); 2594 STAILQ_INIT(&temp); 2595 STAILQ_CONCAT(&temp, &sdev->ocbs); 2596 STAILQ_INIT(&sdev->ocbs); 2597 mutex_exit(&sc->sc_mtx); 2598 2599 for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) { 2600 next = STAILQ_NEXT(ocb, ocb); 2601 sbp_abort_ocb(ocb, status); 2602 } 2603 if (sdev->last_ocb != NULL) { 2604 sbp_free_ocb(sdev, sdev->last_ocb); 2605 sdev->last_ocb = NULL; 2606 } 2607 } 2608
Indexes created Wed Oct 15 16:09:53 GMT 2025