sbp.c revision 1.31
1 /* $NetBSD: sbp.c,v 1.31 2010/05/10 12:17:33 kiyohara 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 1.31 2010/05/10 12:17:33 kiyohara 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/kmem.h> 51 #include <sys/kthread.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, NULL, 132 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL, 133 NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) 134 goto err; 135 136 if ((rc = sysctl_createv(clog, 0, NULL, &node, 137 CTLFLAG_PERMANENT, CTLTYPE_NODE, "sbp", 138 SYSCTL_DESCR("sbp controls"), NULL, 0, NULL, 139 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 140 goto err; 141 sbp_node_num = node->sysctl_num; 142 143 /* sbp auto login flag */ 144 if ((rc = sysctl_createv(clog, 0, NULL, &node, 145 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 146 "auto_login", SYSCTL_DESCR("SBP perform login automatically"), 147 NULL, 0, &auto_login, 148 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) 149 goto err; 150 151 /* sbp max speed */ 152 if ((rc = sysctl_createv(clog, 0, NULL, &node, 153 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 154 "max_speed", SYSCTL_DESCR("SBP transfer max speed"), 155 sysctl_sbp_verify_max_speed, 0, &max_speed, 156 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) 157 goto err; 158 159 /* sbp exclusive login flag */ 160 if ((rc = sysctl_createv(clog, 0, NULL, &node, 161 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 162 "exclusive_login", SYSCTL_DESCR("SBP enable exclusive login"), 163 NULL, 0, &ex_login, 164 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) 165 goto err; 166 167 /* sbp login delay */ 168 if ((rc = sysctl_createv(clog, 0, NULL, &node, 169 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 170 "login_delay", SYSCTL_DESCR("SBP login delay in msec"), 171 NULL, 0, &login_delay, 172 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) 173 goto err; 174 175 /* sbp scan delay */ 176 if ((rc = sysctl_createv(clog, 0, NULL, &node, 177 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 178 "scan_delay", SYSCTL_DESCR("SBP scan delay in msec"), 179 NULL, 0, &scan_delay, 180 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) 181 goto err; 182 183 /* sbp use doorbell flag */ 184 if ((rc = sysctl_createv(clog, 0, NULL, &node, 185 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 186 "use_doorbell", SYSCTL_DESCR("SBP use doorbell request"), 187 NULL, 0, &use_doorbell, 188 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) 189 goto err; 190 191 /* sbp force tagged queuing */ 192 if ((rc = sysctl_createv(clog, 0, NULL, &node, 193 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 194 "tags", SYSCTL_DESCR("SBP tagged queuing support"), 195 sysctl_sbp_verify_tags, 0, &sbp_tags, 196 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) 197 goto err; 198 199 /* sbp driver debug flag */ 200 if ((rc = sysctl_createv(clog, 0, NULL, &node, 201 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 202 "sbp_debug", SYSCTL_DESCR("SBP debug flag"), 203 NULL, 0, &debug, 204 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) 205 goto err; 206 207 return; 208 209 err: 210 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 211 } 212 213 static int 214 sysctl_sbp_verify(SYSCTLFN_ARGS, int lower, int upper) 215 { 216 int error, t; 217 struct sysctlnode node; 218 219 node = *rnode; 220 t = *(int*)rnode->sysctl_data; 221 node.sysctl_data = &t; 222 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 223 if (error || newp == NULL) 224 return error; 225 226 if (t < lower || t > upper) 227 return EINVAL; 228 229 *(int*)rnode->sysctl_data = t; 230 231 return 0; 232 } 233 234 static int 235 sysctl_sbp_verify_max_speed(SYSCTLFN_ARGS) 236 { 237 238 return sysctl_sbp_verify(SYSCTLFN_CALL(rnode), 0, FWSPD_S400); 239 } 240 241 static int 242 sysctl_sbp_verify_tags(SYSCTLFN_ARGS) 243 { 244 245 return sysctl_sbp_verify(SYSCTLFN_CALL(rnode), -1, 1); 246 } 247 248 #define NEED_RESPONSE 0 249 250 #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE) 251 #ifdef __sparc64__ /* iommu */ 252 #define SBP_IND_MAX howmany(SBP_MAXPHYS, SBP_SEG_MAX) 253 #else 254 #define SBP_IND_MAX howmany(SBP_MAXPHYS, PAGE_SIZE) 255 #endif 256 struct sbp_ocb { 257 uint32_t orb[8]; 258 #define IND_PTR_OFFSET (sizeof(uint32_t) * 8) 259 struct ind_ptr ind_ptr[SBP_IND_MAX]; 260 struct scsipi_xfer *xs; 261 struct sbp_dev *sdev; 262 uint16_t index; 263 uint16_t flags; /* XXX should be removed */ 264 bus_dmamap_t dmamap; 265 bus_addr_t bus_addr; 266 STAILQ_ENTRY(sbp_ocb) ocb; 267 }; 268 269 #define SBP_ORB_DMA_SYNC(dma, i, op) \ 270 bus_dmamap_sync((dma).dma_tag, (dma).dma_map, \ 271 sizeof(struct sbp_ocb) * (i), \ 272 sizeof(ocb->orb) + sizeof(ocb->ind_ptr), (op)); 273 274 #define OCB_ACT_MGM 0 275 #define OCB_ACT_CMD 1 276 #define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo)) 277 278 struct sbp_dev{ 279 #define SBP_DEV_RESET 0 /* accept login */ 280 #define SBP_DEV_LOGIN 1 /* to login */ 281 #if 0 282 #define SBP_DEV_RECONN 2 /* to reconnect */ 283 #endif 284 #define SBP_DEV_TOATTACH 3 /* to attach */ 285 #define SBP_DEV_PROBE 4 /* scan lun */ 286 #define SBP_DEV_ATTACHED 5 /* in operation */ 287 #define SBP_DEV_DEAD 6 /* unavailable unit */ 288 #define SBP_DEV_RETRY 7 /* unavailable unit */ 289 uint8_t status:4, 290 timeout:4; 291 uint8_t type; 292 uint16_t lun_id; 293 uint16_t freeze; 294 #define ORB_LINK_DEAD (1 << 0) 295 #define VALID_LUN (1 << 1) 296 #define ORB_POINTER_ACTIVE (1 << 2) 297 #define ORB_POINTER_NEED (1 << 3) 298 #define ORB_DOORBELL_ACTIVE (1 << 4) 299 #define ORB_DOORBELL_NEED (1 << 5) 300 #define ORB_SHORTAGE (1 << 6) 301 uint16_t flags; 302 struct scsipi_periph *periph; 303 struct sbp_target *target; 304 struct fwdma_alloc dma; 305 struct sbp_login_res *login; 306 struct callout login_callout; 307 struct sbp_ocb *ocb; 308 STAILQ_HEAD(, sbp_ocb) ocbs; 309 STAILQ_HEAD(, sbp_ocb) free_ocbs; 310 struct sbp_ocb *last_ocb; 311 char vendor[32]; 312 char product[32]; 313 char revision[10]; 314 char bustgtlun[32]; 315 }; 316 317 struct sbp_target { 318 int target_id; 319 int num_lun; 320 struct sbp_dev **luns; 321 struct sbp_softc *sbp; 322 struct fw_device *fwdev; 323 uint32_t mgm_hi, mgm_lo; 324 struct sbp_ocb *mgm_ocb_cur; 325 STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue; 326 struct callout mgm_ocb_timeout; 327 STAILQ_HEAD(, fw_xfer) xferlist; 328 int n_xfer; 329 }; 330 331 struct sbp_softc { 332 struct firewire_dev_comm sc_fd; 333 struct scsipi_adapter sc_adapter; 334 struct scsipi_channel sc_channel; 335 device_t sc_bus; 336 struct lwp *sc_lwp; 337 struct sbp_target sc_target; 338 struct fw_bind sc_fwb; 339 bus_dma_tag_t sc_dmat; 340 struct timeval sc_last_busreset; 341 int sc_flags; 342 kmutex_t sc_mtx; 343 kcondvar_t sc_cv; 344 }; 345 346 MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/IEEE1394"); 347 348 349 static int sbpmatch(device_t, cfdata_t, void *); 350 static void sbpattach(device_t, device_t, void *); 351 static int sbpdetach(device_t, int); 352 353 static void sbp_scsipi_request(struct scsipi_channel *, scsipi_adapter_req_t, 354 void *); 355 static void sbp_minphys(struct buf *); 356 357 static void sbp_show_sdev_info(struct sbp_dev *); 358 static void sbp_alloc_lun(struct sbp_target *); 359 static struct sbp_target *sbp_alloc_target(struct sbp_softc *, 360 struct fw_device *); 361 static void sbp_probe_lun(struct sbp_dev *); 362 static void sbp_login_callout(void *); 363 static void sbp_login(struct sbp_dev *); 364 static void sbp_probe_target(void *); 365 static void sbp_post_busreset(void *); 366 static void sbp_post_explore(void *); 367 #if NEED_RESPONSE 368 static void sbp_loginres_callback(struct fw_xfer *); 369 #endif 370 static inline void sbp_xfer_free(struct fw_xfer *); 371 static void sbp_reset_start_callback(struct fw_xfer *); 372 static void sbp_reset_start(struct sbp_dev *); 373 static void sbp_mgm_callback(struct fw_xfer *); 374 static void sbp_scsipi_scan_target(void *); 375 static inline void sbp_scan_dev(struct sbp_dev *); 376 static void sbp_do_attach(struct fw_xfer *); 377 static void sbp_agent_reset_callback(struct fw_xfer *); 378 static void sbp_agent_reset(struct sbp_dev *); 379 static void sbp_busy_timeout_callback(struct fw_xfer *); 380 static void sbp_busy_timeout(struct sbp_dev *); 381 static void sbp_orb_pointer_callback(struct fw_xfer *); 382 static void sbp_orb_pointer(struct sbp_dev *, struct sbp_ocb *); 383 static void sbp_doorbell_callback(struct fw_xfer *); 384 static void sbp_doorbell(struct sbp_dev *); 385 static struct fw_xfer *sbp_write_cmd(struct sbp_dev *, int, int); 386 static void sbp_mgm_orb(struct sbp_dev *, int, struct sbp_ocb *); 387 static void sbp_print_scsi_cmd(struct sbp_ocb *); 388 static void sbp_scsi_status(struct sbp_status *, struct sbp_ocb *); 389 static void sbp_fix_inq_data(struct sbp_ocb *); 390 static void sbp_recv(struct fw_xfer *); 391 static int sbp_logout_all(struct sbp_softc *); 392 static void sbp_free_sdev(struct sbp_dev *); 393 static void sbp_free_target(struct sbp_target *); 394 static void sbp_scsipi_detach_sdev(struct sbp_dev *); 395 static void sbp_scsipi_detach_target(struct sbp_target *); 396 static void sbp_target_reset(struct sbp_dev *, int); 397 static void sbp_mgm_timeout(void *); 398 static void sbp_timeout(void *); 399 static void sbp_action1(struct sbp_softc *, struct scsipi_xfer *); 400 static void sbp_execute_ocb(struct sbp_ocb *, bus_dma_segment_t *, int); 401 static struct sbp_ocb *sbp_dequeue_ocb(struct sbp_dev *, struct sbp_status *); 402 static struct sbp_ocb *sbp_enqueue_ocb(struct sbp_dev *, struct sbp_ocb *); 403 static struct sbp_ocb *sbp_get_ocb(struct sbp_dev *); 404 static void sbp_free_ocb(struct sbp_dev *, struct sbp_ocb *); 405 static void sbp_abort_ocb(struct sbp_ocb *, int); 406 static void sbp_abort_all_ocbs(struct sbp_dev *, int); 407 408 409 static const char *orb_status0[] = { 410 /* 0 */ "No additional information to report", 411 /* 1 */ "Request type not supported", 412 /* 2 */ "Speed not supported", 413 /* 3 */ "Page size not supported", 414 /* 4 */ "Access denied", 415 /* 5 */ "Logical unit not supported", 416 /* 6 */ "Maximum payload too small", 417 /* 7 */ "Reserved for future standardization", 418 /* 8 */ "Resources unavailable", 419 /* 9 */ "Function rejected", 420 /* A */ "Login ID not recognized", 421 /* B */ "Dummy ORB completed", 422 /* C */ "Request aborted", 423 /* FF */ "Unspecified error" 424 #define MAX_ORB_STATUS0 0xd 425 }; 426 427 static const char *orb_status1_object[] = { 428 /* 0 */ "Operation request block (ORB)", 429 /* 1 */ "Data buffer", 430 /* 2 */ "Page table", 431 /* 3 */ "Unable to specify" 432 }; 433 434 static const char *orb_status1_serial_bus_error[] = { 435 /* 0 */ "Missing acknowledge", 436 /* 1 */ "Reserved; not to be used", 437 /* 2 */ "Time-out error", 438 /* 3 */ "Reserved; not to be used", 439 /* 4 */ "Busy retry limit exceeded(X)", 440 /* 5 */ "Busy retry limit exceeded(A)", 441 /* 6 */ "Busy retry limit exceeded(B)", 442 /* 7 */ "Reserved for future standardization", 443 /* 8 */ "Reserved for future standardization", 444 /* 9 */ "Reserved for future standardization", 445 /* A */ "Reserved for future standardization", 446 /* B */ "Tardy retry limit exceeded", 447 /* C */ "Conflict error", 448 /* D */ "Data error", 449 /* E */ "Type error", 450 /* F */ "Address error" 451 }; 452 453 454 CFATTACH_DECL_NEW(sbp, sizeof(struct sbp_softc), 455 sbpmatch, sbpattach, sbpdetach, NULL); 456 457 458 int 459 sbpmatch(device_t parent, cfdata_t cf, void *aux) 460 { 461 struct fw_attach_args *fwa = aux; 462 463 if (strcmp(fwa->name, "sbp") == 0) 464 return 1; 465 return 0; 466 } 467 468 static void 469 sbpattach(device_t parent, device_t self, void *aux) 470 { 471 struct sbp_softc *sc = device_private(self); 472 struct fw_attach_args *fwa = (struct fw_attach_args *)aux; 473 struct firewire_comm *fc; 474 struct scsipi_adapter *sc_adapter = &sc->sc_adapter; 475 struct scsipi_channel *sc_channel = &sc->sc_channel; 476 struct sbp_target *target = &sc->sc_target; 477 int dv_unit; 478 479 aprint_naive("\n"); 480 aprint_normal(": SBP-2/SCSI over IEEE1394\n"); 481 482 sc->sc_fd.dev = self; 483 484 if (cold) 485 sbp_cold++; 486 sc->sc_fd.fc = fc = fwa->fc; 487 mutex_init(&sc->sc_mtx, MUTEX_DEFAULT, IPL_VM); 488 cv_init(&sc->sc_cv, "sbp"); 489 490 if (max_speed < 0) 491 max_speed = fc->speed; 492 493 sc->sc_dmat = fc->dmat; 494 495 sc->sc_target.fwdev = NULL; 496 sc->sc_target.luns = NULL; 497 498 if (sbp_alloc_target(sc, fwa->fwdev) == NULL) 499 return; 500 501 sc_adapter->adapt_dev = sc->sc_fd.dev; 502 sc_adapter->adapt_nchannels = 1; 503 sc_adapter->adapt_max_periph = 1; 504 sc_adapter->adapt_request = sbp_scsipi_request; 505 sc_adapter->adapt_minphys = sbp_minphys; 506 sc_adapter->adapt_openings = 8; 507 508 sc_channel->chan_adapter = sc_adapter; 509 sc_channel->chan_bustype = &scsi_bustype; 510 sc_channel->chan_defquirks = PQUIRK_ONLYBIG; 511 sc_channel->chan_channel = 0; 512 sc_channel->chan_flags = SCSIPI_CHAN_CANGROW | SCSIPI_CHAN_NOSETTLE; 513 514 sc_channel->chan_ntargets = 1; 515 sc_channel->chan_nluns = target->num_lun; /* We set nluns 0 now */ 516 sc_channel->chan_id = 1; 517 518 sc->sc_bus = config_found(sc->sc_fd.dev, sc_channel, scsiprint); 519 if (sc->sc_bus == NULL) { 520 aprint_error_dev(self, "attach failed\n"); 521 return; 522 } 523 524 /* We reserve 16 bit space (4 bytes X 64 unit X 256 luns) */ 525 dv_unit = device_unit(sc->sc_fd.dev); 526 sc->sc_fwb.start = SBP_DEV2ADDR(dv_unit, 0); 527 sc->sc_fwb.end = SBP_DEV2ADDR(dv_unit, -1); 528 mutex_init(&sc->sc_fwb.fwb_mtx, MUTEX_DEFAULT, IPL_VM); 529 /* pre-allocate xfer */ 530 STAILQ_INIT(&sc->sc_fwb.xferlist); 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 (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); 569 570 return 0; 571 } 572 573 574 static void 575 sbp_scsipi_request(struct scsipi_channel *channel, scsipi_adapter_req_t req, 576 void *arg) 577 { 578 struct sbp_softc *sc = device_private(channel->chan_adapter->adapt_dev); 579 struct scsipi_xfer *xs = arg; 580 int i; 581 582 SBP_DEBUG(1) 583 printf("Called sbp_scsipi_request\n"); 584 END_DEBUG 585 586 switch (req) { 587 case ADAPTER_REQ_RUN_XFER: 588 SBP_DEBUG(1) 589 printf("Got req_run_xfer\n"); 590 printf("xs control: 0x%08x, timeout: %d\n", 591 xs->xs_control, xs->timeout); 592 printf("opcode: 0x%02x\n", (int)xs->cmd->opcode); 593 for (i = 0; i < 15; i++) 594 printf("0x%02x ",(int)xs->cmd->bytes[i]); 595 printf("\n"); 596 END_DEBUG 597 if (xs->xs_control & XS_CTL_RESET) { 598 SBP_DEBUG(1) 599 printf("XS_CTL_RESET not support\n"); 600 END_DEBUG 601 break; 602 } 603 #define SBPSCSI_SBP2_MAX_CDB 12 604 if (xs->cmdlen > SBPSCSI_SBP2_MAX_CDB) { 605 SBP_DEBUG(0) 606 printf( 607 "sbp doesn't support cdb's larger than %d bytes\n", 608 SBPSCSI_SBP2_MAX_CDB); 609 END_DEBUG 610 xs->error = XS_DRIVER_STUFFUP; 611 scsipi_done(xs); 612 return; 613 } 614 sbp_action1(sc, xs); 615 616 break; 617 case ADAPTER_REQ_GROW_RESOURCES: 618 SBP_DEBUG(1) 619 printf("Got req_grow_resources\n"); 620 END_DEBUG 621 break; 622 case ADAPTER_REQ_SET_XFER_MODE: 623 SBP_DEBUG(1) 624 printf("Got set xfer mode\n"); 625 END_DEBUG 626 break; 627 default: 628 panic("Unknown request: %d\n", (int)req); 629 } 630 } 631 632 static void 633 sbp_minphys(struct buf *bp) 634 { 635 636 minphys(bp); 637 } 638 639 640 /* 641 * Display device characteristics on the console 642 */ 643 static void 644 sbp_show_sdev_info(struct sbp_dev *sdev) 645 { 646 struct fw_device *fwdev = sdev->target->fwdev; 647 struct sbp_softc *sc = sdev->target->sbp; 648 649 aprint_normal_dev(sc->sc_fd.dev, 650 "ordered:%d type:%d EUI:%08x%08x node:%d speed:%d maxrec:%d\n", 651 (sdev->type & 0x40) >> 6, 652 (sdev->type & 0x1f), 653 fwdev->eui.hi, 654 fwdev->eui.lo, 655 fwdev->dst, 656 fwdev->speed, 657 fwdev->maxrec); 658 aprint_normal_dev(sc->sc_fd.dev, "%s '%s' '%s' '%s'\n", 659 sdev->bustgtlun, sdev->vendor, sdev->product, sdev->revision); 660 } 661 662 static void 663 sbp_alloc_lun(struct sbp_target *target) 664 { 665 struct crom_context cc; 666 struct csrreg *reg; 667 struct sbp_dev *sdev, **newluns; 668 struct sbp_softc *sc; 669 int maxlun, lun, i; 670 671 sc = target->sbp; 672 crom_init_context(&cc, target->fwdev->csrrom); 673 /* XXX shoud parse appropriate unit directories only */ 674 maxlun = -1; 675 while (cc.depth >= 0) { 676 reg = crom_search_key(&cc, CROM_LUN); 677 if (reg == NULL) 678 break; 679 lun = reg->val & 0xffff; 680 SBP_DEBUG(0) 681 printf("target %d lun %d found\n", target->target_id, lun); 682 END_DEBUG 683 if (maxlun < lun) 684 maxlun = lun; 685 crom_next(&cc); 686 } 687 if (maxlun < 0) 688 aprint_normal_dev(sc->sc_fd.dev, "%d: no LUN found\n", 689 target->target_id); 690 691 maxlun++; 692 if (maxlun >= SBP_NUM_LUNS) 693 maxlun = SBP_NUM_LUNS; 694 695 /* Invalidiate stale devices */ 696 for (lun = 0; lun < target->num_lun; lun++) { 697 sdev = target->luns[lun]; 698 if (sdev == NULL) 699 continue; 700 sdev->flags &= ~VALID_LUN; 701 if (lun >= maxlun) { 702 /* lost device */ 703 sbp_scsipi_detach_sdev(sdev); 704 sbp_free_sdev(sdev); 705 target->luns[lun] = NULL; 706 } 707 } 708 709 /* Reallocate */ 710 if (maxlun != target->num_lun) { 711 const int sbp_dev_p_sz = sizeof(struct sbp_dev *); 712 713 newluns = kmem_alloc(sbp_dev_p_sz * maxlun, KM_NOSLEEP); 714 if (newluns != NULL) 715 memcpy(*newluns, target->luns, 716 sizeof(struct sbp_dev *) * target->num_lun); 717 else { 718 aprint_error_dev(sc->sc_fd.dev, "kmem alloc failed\n"); 719 newluns = target->luns; 720 maxlun = target->num_lun; 721 } 722 723 /* 724 * We must zero the extended region for the case 725 * realloc() doesn't allocate new buffer. 726 */ 727 if (maxlun > target->num_lun) 728 memset(&newluns[target->num_lun], 0, 729 sbp_dev_p_sz * (maxlun - target->num_lun)); 730 731 target->luns = newluns; 732 target->num_lun = maxlun; 733 } 734 735 crom_init_context(&cc, target->fwdev->csrrom); 736 while (cc.depth >= 0) { 737 int new = 0; 738 739 reg = crom_search_key(&cc, CROM_LUN); 740 if (reg == NULL) 741 break; 742 lun = reg->val & 0xffff; 743 if (lun >= SBP_NUM_LUNS) { 744 aprint_error_dev(sc->sc_fd.dev, "too large lun %d\n", 745 lun); 746 goto next; 747 } 748 749 sdev = target->luns[lun]; 750 if (sdev == NULL) { 751 sdev = kmem_zalloc(sizeof(struct sbp_dev), KM_NOSLEEP); 752 if (sdev == NULL) { 753 aprint_error_dev(sc->sc_fd.dev, 754 "kmem alloc failed\n"); 755 goto next; 756 } 757 target->luns[lun] = sdev; 758 sdev->lun_id = lun; 759 sdev->target = target; 760 STAILQ_INIT(&sdev->ocbs); 761 callout_init(&sdev->login_callout, CALLOUT_MPSAFE); 762 callout_setfunc(&sdev->login_callout, 763 sbp_login_callout, sdev); 764 sdev->status = SBP_DEV_RESET; 765 new = 1; 766 snprintf(sdev->bustgtlun, 32, "%s:%d:%d", 767 device_xname(sc->sc_fd.dev), 768 sdev->target->target_id, 769 sdev->lun_id); 770 if (!sc->sc_lwp) 771 if (kthread_create( 772 PRI_NONE, KTHREAD_MPSAFE, NULL, 773 sbp_scsipi_scan_target, &sc->sc_target, 774 &sc->sc_lwp, 775 "sbp%d_attach", device_unit(sc->sc_fd.dev))) 776 aprint_error_dev(sc->sc_fd.dev, 777 "unable to create thread"); 778 } 779 sdev->flags |= VALID_LUN; 780 sdev->type = (reg->val & 0xff0000) >> 16; 781 782 if (new == 0) 783 goto next; 784 785 fwdma_alloc_setup(sc->sc_fd.dev, sc->sc_dmat, SBP_DMA_SIZE, 786 &sdev->dma, sizeof(uint32_t), BUS_DMA_NOWAIT); 787 if (sdev->dma.v_addr == NULL) { 788 kmem_free(sdev, sizeof(struct sbp_dev)); 789 target->luns[lun] = NULL; 790 goto next; 791 } 792 sdev->ocb = (struct sbp_ocb *)sdev->dma.v_addr; 793 sdev->login = (struct sbp_login_res *)&sdev->ocb[SBP_QUEUE_LEN]; 794 memset((char *)sdev->ocb, 0, 795 sizeof(struct sbp_ocb) * SBP_QUEUE_LEN); 796 797 STAILQ_INIT(&sdev->free_ocbs); 798 for (i = 0; i < SBP_QUEUE_LEN; i++) { 799 struct sbp_ocb *ocb = &sdev->ocb[i]; 800 801 ocb->index = i; 802 ocb->bus_addr = 803 sdev->dma.bus_addr + sizeof(struct sbp_ocb) * i; 804 if (bus_dmamap_create(sc->sc_dmat, 0x100000, 805 SBP_IND_MAX, SBP_SEG_MAX, 0, 0, &ocb->dmamap)) { 806 aprint_error_dev(sc->sc_fd.dev, 807 "cannot create dmamap %d\n", i); 808 /* XXX */ 809 goto next; 810 } 811 sbp_free_ocb(sdev, ocb); /* into free queue */ 812 } 813 next: 814 crom_next(&cc); 815 } 816 817 for (lun = 0; lun < target->num_lun; lun++) { 818 sdev = target->luns[lun]; 819 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) { 820 sbp_scsipi_detach_sdev(sdev); 821 sbp_free_sdev(sdev); 822 target->luns[lun] = NULL; 823 } 824 } 825 } 826 827 static struct sbp_target * 828 sbp_alloc_target(struct sbp_softc *sc, struct fw_device *fwdev) 829 { 830 struct sbp_target *target; 831 struct crom_context cc; 832 struct csrreg *reg; 833 834 SBP_DEBUG(1) 835 printf("sbp_alloc_target\n"); 836 END_DEBUG 837 /* new target */ 838 target = &sc->sc_target; 839 target->sbp = sc; 840 target->fwdev = fwdev; 841 target->target_id = 0; 842 /* XXX we may want to reload mgm port after each bus reset */ 843 /* XXX there might be multiple management agents */ 844 crom_init_context(&cc, target->fwdev->csrrom); 845 reg = crom_search_key(&cc, CROM_MGM); 846 if (reg == NULL || reg->val == 0) { 847 aprint_error_dev(sc->sc_fd.dev, "NULL management address\n"); 848 target->fwdev = NULL; 849 return NULL; 850 } 851 target->mgm_hi = 0xffff; 852 target->mgm_lo = 0xf0000000 | (reg->val << 2); 853 target->mgm_ocb_cur = NULL; 854 SBP_DEBUG(1) 855 printf("target: mgm_port: %x\n", target->mgm_lo); 856 END_DEBUG 857 STAILQ_INIT(&target->xferlist); 858 target->n_xfer = 0; 859 STAILQ_INIT(&target->mgm_ocb_queue); 860 callout_init(&target->mgm_ocb_timeout, CALLOUT_MPSAFE); 861 862 target->luns = NULL; 863 target->num_lun = 0; 864 return target; 865 } 866 867 static void 868 sbp_probe_lun(struct sbp_dev *sdev) 869 { 870 struct fw_device *fwdev; 871 struct crom_context c, *cc = &c; 872 struct csrreg *reg; 873 874 memset(sdev->vendor, 0, sizeof(sdev->vendor)); 875 memset(sdev->product, 0, sizeof(sdev->product)); 876 877 fwdev = sdev->target->fwdev; 878 crom_init_context(cc, fwdev->csrrom); 879 /* get vendor string */ 880 crom_search_key(cc, CSRKEY_VENDOR); 881 crom_next(cc); 882 crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor)); 883 /* skip to the unit directory for SBP-2 */ 884 while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) { 885 if (reg->val == CSRVAL_T10SBP2) 886 break; 887 crom_next(cc); 888 } 889 /* get firmware revision */ 890 reg = crom_search_key(cc, CSRKEY_FIRM_VER); 891 if (reg != NULL) 892 snprintf(sdev->revision, sizeof(sdev->revision), "%06x", 893 reg->val); 894 /* get product string */ 895 crom_search_key(cc, CSRKEY_MODEL); 896 crom_next(cc); 897 crom_parse_text(cc, sdev->product, sizeof(sdev->product)); 898 } 899 900 static void 901 sbp_login_callout(void *arg) 902 { 903 struct sbp_dev *sdev = (struct sbp_dev *)arg; 904 905 sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL); 906 } 907 908 static void 909 sbp_login(struct sbp_dev *sdev) 910 { 911 struct sbp_softc *sc = sdev->target->sbp; 912 struct timeval delta; 913 struct timeval t; 914 int ticks = 0; 915 916 microtime(&delta); 917 timersub(&delta, &sc->sc_last_busreset, &delta); 918 t.tv_sec = login_delay / 1000; 919 t.tv_usec = (login_delay % 1000) * 1000; 920 timersub(&t, &delta, &t); 921 if (t.tv_sec >= 0 && t.tv_usec > 0) 922 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000; 923 SBP_DEBUG(0) 924 printf("%s: sec = %lld usec = %ld ticks = %d\n", __func__, 925 (long long)t.tv_sec, (long)t.tv_usec, ticks); 926 END_DEBUG 927 callout_schedule(&sdev->login_callout, ticks); 928 } 929 930 static void 931 sbp_probe_target(void *arg) 932 { 933 struct sbp_target *target = (struct sbp_target *)arg; 934 struct sbp_dev *sdev; 935 int i; 936 937 SBP_DEBUG(1) 938 printf("%s %d\n", __func__, target->target_id); 939 END_DEBUG 940 941 sbp_alloc_lun(target); 942 943 /* XXX untimeout mgm_ocb and dequeue */ 944 for (i = 0; i < target->num_lun; i++) { 945 sdev = target->luns[i]; 946 if (sdev == NULL || sdev->status == SBP_DEV_DEAD) 947 continue; 948 949 if (sdev->periph != NULL) { 950 scsipi_periph_freeze(sdev->periph, 1); 951 sdev->freeze++; 952 } 953 sbp_probe_lun(sdev); 954 sbp_show_sdev_info(sdev); 955 956 sbp_abort_all_ocbs(sdev, XS_RESET); 957 switch (sdev->status) { 958 case SBP_DEV_RESET: 959 /* new or revived target */ 960 if (auto_login) 961 sbp_login(sdev); 962 break; 963 case SBP_DEV_TOATTACH: 964 case SBP_DEV_PROBE: 965 case SBP_DEV_ATTACHED: 966 case SBP_DEV_RETRY: 967 default: 968 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL); 969 break; 970 } 971 } 972 } 973 974 static void 975 sbp_post_busreset(void *arg) 976 { 977 struct sbp_softc *sc = (struct sbp_softc *)arg; 978 struct sbp_target *target = &sc->sc_target; 979 struct fw_device *fwdev = target->fwdev; 980 int alive; 981 982 alive = SBP_FWDEV_ALIVE(fwdev); 983 SBP_DEBUG(0) 984 printf("sbp_post_busreset\n"); 985 if (!alive) 986 printf("not alive\n"); 987 END_DEBUG 988 microtime(&sc->sc_last_busreset); 989 990 if (!alive) 991 return; 992 993 scsipi_channel_freeze(&sc->sc_channel, 1); 994 } 995 996 static void 997 sbp_post_explore(void *arg) 998 { 999 struct sbp_softc *sc = (struct sbp_softc *)arg; 1000 struct sbp_target *target = &sc->sc_target; 1001 struct fw_device *fwdev = target->fwdev; 1002 int alive; 1003 1004 alive = SBP_FWDEV_ALIVE(fwdev); 1005 SBP_DEBUG(0) 1006 printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold); 1007 if (!alive) 1008 printf("not alive\n"); 1009 END_DEBUG 1010 if (!alive) 1011 return; 1012 1013 if (!firewire_phydma_enable) 1014 return; 1015 1016 if (sbp_cold > 0) 1017 sbp_cold--; 1018 1019 SBP_DEBUG(0) 1020 printf("sbp_post_explore: EUI:%08x%08x ", fwdev->eui.hi, fwdev->eui.lo); 1021 END_DEBUG 1022 sbp_probe_target((void *)target); 1023 if (target->num_lun == 0) 1024 sbp_free_target(target); 1025 1026 scsipi_channel_thaw(&sc->sc_channel, 1); 1027 } 1028 1029 #if NEED_RESPONSE 1030 static void 1031 sbp_loginres_callback(struct fw_xfer *xfer) 1032 { 1033 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1034 struct sbp_softc *sc = sdev->target->sbp; 1035 1036 SBP_DEBUG(1) 1037 printf("sbp_loginres_callback\n"); 1038 END_DEBUG 1039 /* recycle */ 1040 mutex_enter(&sc->sc_fwb.fwb_mtx); 1041 STAILQ_INSERT_TAIL(&sc->sc_fwb.xferlist, xfer, link); 1042 mutex_exit(&sc->sc_fwb.fwb_mtx); 1043 return; 1044 } 1045 #endif 1046 1047 static inline void 1048 sbp_xfer_free(struct fw_xfer *xfer) 1049 { 1050 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1051 struct sbp_softc *sc = sdev->target->sbp; 1052 1053 fw_xfer_unload(xfer); 1054 mutex_enter(&sc->sc_mtx); 1055 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link); 1056 mutex_exit(&sc->sc_mtx); 1057 } 1058 1059 static void 1060 sbp_reset_start_callback(struct fw_xfer *xfer) 1061 { 1062 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc; 1063 struct sbp_target *target = sdev->target; 1064 int i; 1065 1066 if (xfer->resp != 0) 1067 aprint_error("%s: sbp_reset_start failed: resp=%d\n", 1068 sdev->bustgtlun, xfer->resp); 1069 1070 for (i = 0; i < target->num_lun; i++) { 1071 tsdev = target->luns[i]; 1072 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN) 1073 sbp_login(tsdev); 1074 } 1075 } 1076 1077 static void 1078 sbp_reset_start(struct sbp_dev *sdev) 1079 { 1080 struct fw_xfer *xfer; 1081 struct fw_pkt *fp; 1082 1083 SBP_DEBUG(0) 1084 printf("%s: sbp_reset_start: %s\n", 1085 device_xname(sdev->target->sbp->sc_fd.dev), sdev->bustgtlun); 1086 END_DEBUG 1087 1088 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 1089 if (xfer == NULL) 1090 return; 1091 xfer->hand = sbp_reset_start_callback; 1092 fp = &xfer->send.hdr; 1093 fp->mode.wreqq.dest_hi = 0xffff; 1094 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START; 1095 fp->mode.wreqq.data = htonl(0xf); 1096 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1097 sbp_xfer_free(xfer); 1098 } 1099 1100 static void 1101 sbp_mgm_callback(struct fw_xfer *xfer) 1102 { 1103 struct sbp_dev *sdev; 1104 int resp; 1105 1106 sdev = (struct sbp_dev *)xfer->sc; 1107 1108 SBP_DEBUG(1) 1109 printf("%s: sbp_mgm_callback: %s\n", 1110 device_xname(sdev->target->sbp->sc_fd.dev), sdev->bustgtlun); 1111 END_DEBUG 1112 resp = xfer->resp; 1113 sbp_xfer_free(xfer); 1114 return; 1115 } 1116 1117 static void 1118 sbp_scsipi_scan_target(void *arg) 1119 { 1120 struct sbp_target *target = (struct sbp_target *)arg; 1121 struct sbp_softc *sc = target->sbp; 1122 struct sbp_dev *sdev; 1123 struct scsipi_channel *chan = &sc->sc_channel; 1124 struct scsibus_softc *sc_bus = device_private(sc->sc_bus); 1125 int lun, yet; 1126 1127 do { 1128 mutex_enter(&sc->sc_mtx); 1129 cv_wait_sig(&sc->sc_cv, &sc->sc_mtx); 1130 mutex_exit(&sc->sc_mtx); 1131 yet = 0; 1132 1133 for (lun = 0; lun < target->num_lun; lun++) { 1134 sdev = target->luns[lun]; 1135 if (sdev == NULL) 1136 continue; 1137 if (sdev->status != SBP_DEV_PROBE) { 1138 yet++; 1139 continue; 1140 } 1141 1142 if (sdev->periph == NULL) { 1143 if (chan->chan_nluns < target->num_lun) 1144 chan->chan_nluns = target->num_lun; 1145 1146 scsi_probe_bus(sc_bus, target->target_id, 1147 sdev->lun_id); 1148 sdev->periph = scsipi_lookup_periph(chan, 1149 target->target_id, lun); 1150 } 1151 sdev->status = SBP_DEV_ATTACHED; 1152 } 1153 } while (yet > 0); 1154 1155 sc->sc_lwp = NULL; 1156 kthread_exit(0); 1157 1158 /* NOTREACHED */ 1159 } 1160 1161 static inline void 1162 sbp_scan_dev(struct sbp_dev *sdev) 1163 { 1164 struct sbp_softc *sc = sdev->target->sbp; 1165 1166 sdev->status = SBP_DEV_PROBE; 1167 mutex_enter(&sc->sc_mtx); 1168 cv_signal(&sdev->target->sbp->sc_cv); 1169 mutex_exit(&sc->sc_mtx); 1170 } 1171 1172 1173 static void 1174 sbp_do_attach(struct fw_xfer *xfer) 1175 { 1176 struct sbp_dev *sdev; 1177 struct sbp_target *target; 1178 struct sbp_softc *sc; 1179 1180 sdev = (struct sbp_dev *)xfer->sc; 1181 target = sdev->target; 1182 sc = target->sbp; 1183 1184 SBP_DEBUG(0) 1185 printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, 1186 sdev->bustgtlun); 1187 END_DEBUG 1188 sbp_xfer_free(xfer); 1189 1190 sbp_scan_dev(sdev); 1191 return; 1192 } 1193 1194 static void 1195 sbp_agent_reset_callback(struct fw_xfer *xfer) 1196 { 1197 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1198 struct sbp_softc *sc = sdev->target->sbp; 1199 1200 SBP_DEBUG(1) 1201 printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, 1202 sdev->bustgtlun); 1203 END_DEBUG 1204 if (xfer->resp != 0) 1205 aprint_error_dev(sc->sc_fd.dev, "%s:%s: resp=%d\n", __func__, 1206 sdev->bustgtlun, xfer->resp); 1207 1208 sbp_xfer_free(xfer); 1209 if (sdev->periph != NULL) { 1210 scsipi_periph_thaw(sdev->periph, sdev->freeze); 1211 scsipi_channel_thaw(&sc->sc_channel, 0); 1212 sdev->freeze = 0; 1213 } 1214 } 1215 1216 static void 1217 sbp_agent_reset(struct sbp_dev *sdev) 1218 { 1219 struct fw_xfer *xfer; 1220 struct fw_pkt *fp; 1221 1222 SBP_DEBUG(0) 1223 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1224 __func__, sdev->bustgtlun); 1225 END_DEBUG 1226 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04); 1227 if (xfer == NULL) 1228 return; 1229 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE) 1230 xfer->hand = sbp_agent_reset_callback; 1231 else 1232 xfer->hand = sbp_do_attach; 1233 fp = &xfer->send.hdr; 1234 fp->mode.wreqq.data = htonl(0xf); 1235 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1236 sbp_xfer_free(xfer); 1237 sbp_abort_all_ocbs(sdev, XS_RESET); 1238 } 1239 1240 static void 1241 sbp_busy_timeout_callback(struct fw_xfer *xfer) 1242 { 1243 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1244 1245 SBP_DEBUG(1) 1246 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1247 __func__, sdev->bustgtlun); 1248 END_DEBUG 1249 sbp_xfer_free(xfer); 1250 sbp_agent_reset(sdev); 1251 } 1252 1253 static void 1254 sbp_busy_timeout(struct sbp_dev *sdev) 1255 { 1256 struct fw_pkt *fp; 1257 struct fw_xfer *xfer; 1258 1259 SBP_DEBUG(0) 1260 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1261 __func__, sdev->bustgtlun); 1262 END_DEBUG 1263 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 1264 if (xfer == NULL) 1265 return; 1266 xfer->hand = sbp_busy_timeout_callback; 1267 fp = &xfer->send.hdr; 1268 fp->mode.wreqq.dest_hi = 0xffff; 1269 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT; 1270 fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf); 1271 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1272 sbp_xfer_free(xfer); 1273 } 1274 1275 static void 1276 sbp_orb_pointer_callback(struct fw_xfer *xfer) 1277 { 1278 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1279 struct sbp_softc *sc = sdev->target->sbp; 1280 1281 SBP_DEBUG(1) 1282 printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, 1283 sdev->bustgtlun); 1284 END_DEBUG 1285 if (xfer->resp != 0) 1286 aprint_error_dev(sc->sc_fd.dev, "%s:%s: xfer->resp = %d\n", 1287 __func__, sdev->bustgtlun, xfer->resp); 1288 sbp_xfer_free(xfer); 1289 sdev->flags &= ~ORB_POINTER_ACTIVE; 1290 1291 if ((sdev->flags & ORB_POINTER_NEED) != 0) { 1292 struct sbp_ocb *ocb; 1293 1294 sdev->flags &= ~ORB_POINTER_NEED; 1295 ocb = STAILQ_FIRST(&sdev->ocbs); 1296 if (ocb != NULL) 1297 sbp_orb_pointer(sdev, ocb); 1298 } 1299 return; 1300 } 1301 1302 static void 1303 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb) 1304 { 1305 struct sbp_softc *sc = sdev->target->sbp; 1306 struct fw_xfer *xfer; 1307 struct fw_pkt *fp; 1308 1309 SBP_DEBUG(1) 1310 printf("%s:%s:%s: 0x%08x\n", device_xname(sc->sc_fd.dev), __func__, 1311 sdev->bustgtlun, (uint32_t)ocb->bus_addr); 1312 END_DEBUG 1313 1314 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) { 1315 SBP_DEBUG(0) 1316 printf("%s: orb pointer active\n", __func__); 1317 END_DEBUG 1318 sdev->flags |= ORB_POINTER_NEED; 1319 return; 1320 } 1321 1322 sdev->flags |= ORB_POINTER_ACTIVE; 1323 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08); 1324 if (xfer == NULL) 1325 return; 1326 xfer->hand = sbp_orb_pointer_callback; 1327 1328 fp = &xfer->send.hdr; 1329 fp->mode.wreqb.len = 8; 1330 fp->mode.wreqb.extcode = 0; 1331 xfer->send.payload[0] = 1332 htonl(((sc->sc_fd.fc->nodeid | FWLOCALBUS) << 16)); 1333 xfer->send.payload[1] = htonl((uint32_t)ocb->bus_addr); 1334 1335 if (fw_asyreq(xfer->fc, -1, xfer) != 0) { 1336 sbp_xfer_free(xfer); 1337 ocb->xs->error = XS_DRIVER_STUFFUP; 1338 scsipi_done(ocb->xs); 1339 } 1340 } 1341 1342 static void 1343 sbp_doorbell_callback(struct fw_xfer *xfer) 1344 { 1345 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1346 struct sbp_softc *sc = sdev->target->sbp; 1347 1348 SBP_DEBUG(1) 1349 printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, 1350 sdev->bustgtlun); 1351 END_DEBUG 1352 if (xfer->resp != 0) { 1353 aprint_error_dev(sc->sc_fd.dev, "%s: xfer->resp = %d\n", 1354 __func__, xfer->resp); 1355 } 1356 sbp_xfer_free(xfer); 1357 sdev->flags &= ~ORB_DOORBELL_ACTIVE; 1358 if ((sdev->flags & ORB_DOORBELL_NEED) != 0) { 1359 sdev->flags &= ~ORB_DOORBELL_NEED; 1360 sbp_doorbell(sdev); 1361 } 1362 return; 1363 } 1364 1365 static void 1366 sbp_doorbell(struct sbp_dev *sdev) 1367 { 1368 struct fw_xfer *xfer; 1369 struct fw_pkt *fp; 1370 1371 SBP_DEBUG(1) 1372 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1373 __func__, sdev->bustgtlun); 1374 END_DEBUG 1375 1376 if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) { 1377 sdev->flags |= ORB_DOORBELL_NEED; 1378 return; 1379 } 1380 sdev->flags |= ORB_DOORBELL_ACTIVE; 1381 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10); 1382 if (xfer == NULL) 1383 return; 1384 xfer->hand = sbp_doorbell_callback; 1385 fp = &xfer->send.hdr; 1386 fp->mode.wreqq.data = htonl(0xf); 1387 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1388 sbp_xfer_free(xfer); 1389 } 1390 1391 static struct fw_xfer * 1392 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset) 1393 { 1394 struct sbp_softc *sc; 1395 struct fw_xfer *xfer; 1396 struct fw_pkt *fp; 1397 struct sbp_target *target; 1398 int new = 0; 1399 1400 target = sdev->target; 1401 sc = target->sbp; 1402 mutex_enter(&sc->sc_mtx); 1403 xfer = STAILQ_FIRST(&target->xferlist); 1404 if (xfer == NULL) { 1405 if (target->n_xfer > 5 /* XXX */) { 1406 aprint_error_dev(sc->sc_fd.dev, 1407 "no more xfer for this target\n"); 1408 mutex_exit(&sc->sc_mtx); 1409 return NULL; 1410 } 1411 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0); 1412 if (xfer == NULL) { 1413 aprint_error_dev(sc->sc_fd.dev, 1414 "fw_xfer_alloc_buf failed\n"); 1415 mutex_exit(&sc->sc_mtx); 1416 return NULL; 1417 } 1418 target->n_xfer++; 1419 SBP_DEBUG(0) 1420 printf("sbp: alloc %d xfer\n", target->n_xfer); 1421 END_DEBUG 1422 new = 1; 1423 } else 1424 STAILQ_REMOVE_HEAD(&target->xferlist, link); 1425 mutex_exit(&sc->sc_mtx); 1426 1427 microtime(&xfer->tv); 1428 1429 if (new) { 1430 xfer->recv.pay_len = 0; 1431 xfer->send.spd = min(target->fwdev->speed, max_speed); 1432 xfer->fc = target->sbp->sc_fd.fc; 1433 } 1434 1435 if (tcode == FWTCODE_WREQB) 1436 xfer->send.pay_len = 8; 1437 else 1438 xfer->send.pay_len = 0; 1439 1440 xfer->sc = (void *)sdev; 1441 fp = &xfer->send.hdr; 1442 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi; 1443 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset; 1444 fp->mode.wreqq.tlrt = 0; 1445 fp->mode.wreqq.tcode = tcode; 1446 fp->mode.wreqq.pri = 0; 1447 fp->mode.wreqq.dst = FWLOCALBUS | target->fwdev->dst; 1448 1449 return xfer; 1450 } 1451 1452 static void 1453 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb) 1454 { 1455 struct fw_xfer *xfer; 1456 struct fw_pkt *fp; 1457 struct sbp_ocb *ocb; 1458 struct sbp_target *target; 1459 int nid, dv_unit; 1460 1461 target = sdev->target; 1462 nid = target->sbp->sc_fd.fc->nodeid | FWLOCALBUS; 1463 dv_unit = device_unit(target->sbp->sc_fd.dev); 1464 1465 mutex_enter(&target->sbp->sc_mtx); 1466 if (func == ORB_FUN_RUNQUEUE) { 1467 ocb = STAILQ_FIRST(&target->mgm_ocb_queue); 1468 if (target->mgm_ocb_cur != NULL || ocb == NULL) { 1469 mutex_exit(&target->sbp->sc_mtx); 1470 return; 1471 } 1472 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb); 1473 mutex_exit(&target->sbp->sc_mtx); 1474 goto start; 1475 } 1476 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 1477 mutex_exit(&target->sbp->sc_mtx); 1478 /* XXX */ 1479 return; 1480 } 1481 mutex_exit(&target->sbp->sc_mtx); 1482 ocb->flags = OCB_ACT_MGM; 1483 ocb->sdev = sdev; 1484 1485 memset(ocb->orb, 0, sizeof(ocb->orb)); 1486 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI); 1487 ocb->orb[7] = htonl(SBP_DEV2ADDR(dv_unit, sdev->lun_id)); 1488 1489 SBP_DEBUG(0) 1490 printf("%s:%s:%s: %s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1491 __func__, sdev->bustgtlun, orb_fun_name[(func>>16)&0xf]); 1492 END_DEBUG 1493 switch (func) { 1494 case ORB_FUN_LGI: 1495 { 1496 const off_t sbp_login_off = 1497 sizeof(struct sbp_ocb) * SBP_QUEUE_LEN; 1498 1499 ocb->orb[0] = ocb->orb[1] = 0; /* password */ 1500 ocb->orb[2] = htonl(nid << 16); 1501 ocb->orb[3] = htonl(sdev->dma.bus_addr + sbp_login_off); 1502 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id); 1503 if (ex_login) 1504 ocb->orb[4] |= htonl(ORB_EXV); 1505 ocb->orb[5] = htonl(SBP_LOGIN_SIZE); 1506 bus_dmamap_sync(sdev->dma.dma_tag, sdev->dma.dma_map, 1507 sbp_login_off, SBP_LOGIN_SIZE, BUS_DMASYNC_PREREAD); 1508 break; 1509 } 1510 1511 case ORB_FUN_ATA: 1512 ocb->orb[0] = htonl((0 << 16) | 0); 1513 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff); 1514 /* fall through */ 1515 case ORB_FUN_RCN: 1516 case ORB_FUN_LGO: 1517 case ORB_FUN_LUR: 1518 case ORB_FUN_RST: 1519 case ORB_FUN_ATS: 1520 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id); 1521 break; 1522 } 1523 1524 if (target->mgm_ocb_cur != NULL) { 1525 /* there is a standing ORB */ 1526 mutex_enter(&target->sbp->sc_mtx); 1527 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb); 1528 mutex_exit(&target->sbp->sc_mtx); 1529 return; 1530 } 1531 start: 1532 target->mgm_ocb_cur = ocb; 1533 1534 callout_reset(&target->mgm_ocb_timeout, 5 * hz, sbp_mgm_timeout, ocb); 1535 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0); 1536 if (xfer == NULL) 1537 return; 1538 xfer->hand = sbp_mgm_callback; 1539 1540 fp = &xfer->send.hdr; 1541 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi; 1542 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo; 1543 fp->mode.wreqb.len = 8; 1544 fp->mode.wreqb.extcode = 0; 1545 xfer->send.payload[0] = htonl(nid << 16); 1546 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff); 1547 1548 /* cache writeback & invalidate(required ORB_FUN_LGI func) */ 1549 /* when abort_ocb, should sync POST ope ? */ 1550 SBP_ORB_DMA_SYNC(sdev->dma, ocb->index, BUS_DMASYNC_PREWRITE); 1551 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1552 sbp_xfer_free(xfer); 1553 } 1554 1555 static void 1556 sbp_print_scsi_cmd(struct sbp_ocb *ocb) 1557 { 1558 struct scsipi_xfer *xs = ocb->xs; 1559 1560 printf("%s:%d:%d:" 1561 " cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x," 1562 " flags: 0x%02x, %db cmd/%db data\n", 1563 device_xname(ocb->sdev->target->sbp->sc_fd.dev), 1564 xs->xs_periph->periph_target, 1565 xs->xs_periph->periph_lun, 1566 xs->cmd->opcode, 1567 xs->cmd->bytes[0], xs->cmd->bytes[1], 1568 xs->cmd->bytes[2], xs->cmd->bytes[3], 1569 xs->cmd->bytes[4], xs->cmd->bytes[5], 1570 xs->cmd->bytes[6], xs->cmd->bytes[7], 1571 xs->cmd->bytes[8], 1572 xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT), 1573 xs->cmdlen, xs->datalen); 1574 } 1575 1576 static void 1577 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb) 1578 { 1579 struct sbp_cmd_status *sbp_cmd_status; 1580 struct scsi_sense_data *sense = &ocb->xs->sense.scsi_sense; 1581 1582 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data; 1583 1584 SBP_DEBUG(0) 1585 sbp_print_scsi_cmd(ocb); 1586 /* XXX need decode status */ 1587 printf("%s:" 1588 " SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n", 1589 ocb->sdev->bustgtlun, 1590 sbp_cmd_status->status, 1591 sbp_cmd_status->sfmt, 1592 sbp_cmd_status->valid, 1593 sbp_cmd_status->s_key, 1594 sbp_cmd_status->s_code, 1595 sbp_cmd_status->s_qlfr, 1596 sbp_status->len); 1597 END_DEBUG 1598 1599 switch (sbp_cmd_status->status) { 1600 case SCSI_CHECK: 1601 case SCSI_BUSY: 1602 case SCSI_TERMINATED: 1603 if (sbp_cmd_status->sfmt == SBP_SFMT_CURR) 1604 sense->response_code = SSD_RCODE_CURRENT; 1605 else 1606 sense->response_code = SSD_RCODE_DEFERRED; 1607 if (sbp_cmd_status->valid) 1608 sense->response_code |= SSD_RCODE_VALID; 1609 sense->flags = sbp_cmd_status->s_key; 1610 if (sbp_cmd_status->mark) 1611 sense->flags |= SSD_FILEMARK; 1612 if (sbp_cmd_status->eom) 1613 sense->flags |= SSD_EOM; 1614 if (sbp_cmd_status->ill_len) 1615 sense->flags |= SSD_ILI; 1616 1617 memcpy(sense->info, &sbp_cmd_status->info, 4); 1618 1619 if (sbp_status->len <= 1) 1620 /* XXX not scsi status. shouldn't be happened */ 1621 sense->extra_len = 0; 1622 else if (sbp_status->len <= 4) 1623 /* add_sense_code(_qual), info, cmd_spec_info */ 1624 sense->extra_len = 6; 1625 else 1626 /* fru, sense_key_spec */ 1627 sense->extra_len = 10; 1628 1629 memcpy(sense->csi, &sbp_cmd_status->cdb, 4); 1630 1631 sense->asc = sbp_cmd_status->s_code; 1632 sense->ascq = sbp_cmd_status->s_qlfr; 1633 sense->fru = sbp_cmd_status->fru; 1634 1635 memcpy(sense->sks.sks_bytes, sbp_cmd_status->s_keydep, 3); 1636 ocb->xs->error = XS_SENSE; 1637 ocb->xs->xs_status = sbp_cmd_status->status; 1638 /* 1639 { 1640 uint8_t j, *tmp; 1641 tmp = sense; 1642 for (j = 0; j < 32; j += 8) 1643 aprint_normal( 1644 "sense %02x%02x %02x%02x %02x%02x %02x%02x\n", 1645 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3], 1646 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]); 1647 1648 } 1649 */ 1650 break; 1651 default: 1652 aprint_error_dev(ocb->sdev->target->sbp->sc_fd.dev, 1653 "%s:%s: unknown scsi status 0x%x\n", 1654 __func__, ocb->sdev->bustgtlun, sbp_cmd_status->status); 1655 } 1656 } 1657 1658 static void 1659 sbp_fix_inq_data(struct sbp_ocb *ocb) 1660 { 1661 struct scsipi_xfer *xs = ocb->xs; 1662 struct sbp_dev *sdev; 1663 struct scsipi_inquiry_data *inq = 1664 (struct scsipi_inquiry_data *)xs->data; 1665 1666 sdev = ocb->sdev; 1667 1668 #if 0 1669 /* 1670 * NetBSD is assuming always 0 for EVPD-bit and 'Page Code'. 1671 */ 1672 #define SI_EVPD 0x01 1673 if (xs->cmd->bytes[0] & SI_EVPD) 1674 return; 1675 #endif 1676 SBP_DEBUG(1) 1677 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1678 __func__, sdev->bustgtlun); 1679 END_DEBUG 1680 switch (inq->device & SID_TYPE) { 1681 case T_DIRECT: 1682 #if 0 1683 /* 1684 * XXX Convert Direct Access device to RBC. 1685 * I've never seen FireWire DA devices which support READ_6. 1686 */ 1687 if ((inq->device & SID_TYPE) == T_DIRECT) 1688 inq->device |= T_SIMPLE_DIRECT; /* T_DIRECT == 0 */ 1689 #endif 1690 /* FALLTHROUGH */ 1691 1692 case T_SIMPLE_DIRECT: 1693 /* 1694 * Override vendor/product/revision information. 1695 * Some devices sometimes return strange strings. 1696 */ 1697 #if 1 1698 memcpy(inq->vendor, sdev->vendor, sizeof(inq->vendor)); 1699 memcpy(inq->product, sdev->product, sizeof(inq->product)); 1700 memcpy(inq->revision + 2, sdev->revision, 1701 sizeof(inq->revision)); 1702 #endif 1703 break; 1704 } 1705 /* 1706 * Force to enable/disable tagged queuing. 1707 * XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page. 1708 */ 1709 if (sbp_tags > 0) 1710 inq->flags3 |= SID_CmdQue; 1711 else if (sbp_tags < 0) 1712 inq->flags3 &= ~SID_CmdQue; 1713 1714 } 1715 1716 static void 1717 sbp_recv(struct fw_xfer *xfer) 1718 { 1719 struct fw_pkt *rfp; 1720 #if NEED_RESPONSE 1721 struct fw_pkt *sfp; 1722 #endif 1723 struct sbp_softc *sc; 1724 struct sbp_dev *sdev; 1725 struct sbp_ocb *ocb; 1726 struct sbp_login_res *login_res = NULL; 1727 struct sbp_status *sbp_status; 1728 struct sbp_target *target; 1729 int orb_fun, status_valid0, status_valid, l, reset_agent = 0; 1730 uint32_t addr; 1731 /* 1732 uint32_t *ld; 1733 ld = xfer->recv.buf; 1734 printf("sbp %x %d %d %08x %08x %08x %08x\n", 1735 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1736 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1737 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11])); 1738 */ 1739 1740 sc = (struct sbp_softc *)xfer->sc; 1741 if (xfer->resp != 0) { 1742 aprint_error_dev(sc->sc_fd.dev, 1743 "sbp_recv: xfer->resp = %d\n", xfer->resp); 1744 goto done0; 1745 } 1746 if (xfer->recv.payload == NULL) { 1747 aprint_error_dev(sc->sc_fd.dev, 1748 "sbp_recv: xfer->recv.payload == NULL\n"); 1749 goto done0; 1750 } 1751 rfp = &xfer->recv.hdr; 1752 if (rfp->mode.wreqb.tcode != FWTCODE_WREQB) { 1753 aprint_error_dev(sc->sc_fd.dev, 1754 "sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode); 1755 goto done0; 1756 } 1757 sbp_status = (struct sbp_status *)xfer->recv.payload; 1758 addr = rfp->mode.wreqb.dest_lo; 1759 SBP_DEBUG(2) 1760 printf("received address 0x%x\n", addr); 1761 END_DEBUG 1762 target = &sc->sc_target; 1763 l = SBP_ADDR2LUN(addr); 1764 if (l >= target->num_lun || target->luns[l] == NULL) { 1765 aprint_error_dev(sc->sc_fd.dev, 1766 "sbp_recv1: invalid lun %d (target=%d)\n", 1767 l, target->target_id); 1768 goto done0; 1769 } 1770 sdev = target->luns[l]; 1771 1772 ocb = NULL; 1773 switch (sbp_status->src) { 1774 case SRC_NEXT_EXISTS: 1775 case SRC_NO_NEXT: 1776 /* check mgm_ocb_cur first */ 1777 ocb = target->mgm_ocb_cur; 1778 if (ocb != NULL) 1779 if (OCB_MATCH(ocb, sbp_status)) { 1780 callout_stop(&target->mgm_ocb_timeout); 1781 target->mgm_ocb_cur = NULL; 1782 break; 1783 } 1784 ocb = sbp_dequeue_ocb(sdev, sbp_status); 1785 if (ocb == NULL) 1786 aprint_error_dev(sc->sc_fd.dev, 1787 "%s:%s: No ocb(%x) on the queue\n", __func__, 1788 sdev->bustgtlun, ntohl(sbp_status->orb_lo)); 1789 break; 1790 case SRC_UNSOL: 1791 /* unsolicit */ 1792 aprint_error_dev(sc->sc_fd.dev, 1793 "%s:%s: unsolicit status received\n", 1794 __func__, sdev->bustgtlun); 1795 break; 1796 default: 1797 aprint_error_dev(sc->sc_fd.dev, 1798 "%s:%s: unknown sbp_status->src\n", 1799 __func__, sdev->bustgtlun); 1800 } 1801 1802 status_valid0 = (sbp_status->src < 2 1803 && sbp_status->resp == SBP_REQ_CMP 1804 && sbp_status->dead == 0); 1805 status_valid = (status_valid0 && sbp_status->status == 0); 1806 1807 if (!status_valid0 || debug > 2) { 1808 int status; 1809 SBP_DEBUG(0) 1810 printf("%s:%s:%s: ORB status src:%x resp:%x dead:%x" 1811 " len:%x stat:%x orb:%x%08x\n", 1812 device_xname(sc->sc_fd.dev), __func__, sdev->bustgtlun, 1813 sbp_status->src, sbp_status->resp, sbp_status->dead, 1814 sbp_status->len, sbp_status->status, 1815 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo)); 1816 END_DEBUG 1817 printf("%s:%s\n", device_xname(sc->sc_fd.dev), sdev->bustgtlun); 1818 status = sbp_status->status; 1819 switch (sbp_status->resp) { 1820 case SBP_REQ_CMP: 1821 if (status > MAX_ORB_STATUS0) 1822 printf("%s\n", orb_status0[MAX_ORB_STATUS0]); 1823 else 1824 printf("%s\n", orb_status0[status]); 1825 break; 1826 case SBP_TRANS_FAIL: 1827 printf("Obj: %s, Error: %s\n", 1828 orb_status1_object[(status>>6) & 3], 1829 orb_status1_serial_bus_error[status & 0xf]); 1830 break; 1831 case SBP_ILLE_REQ: 1832 printf("Illegal request\n"); 1833 break; 1834 case SBP_VEND_DEP: 1835 printf("Vendor dependent\n"); 1836 break; 1837 default: 1838 printf("unknown respose code %d\n", sbp_status->resp); 1839 } 1840 } 1841 1842 /* we have to reset the fetch agent if it's dead */ 1843 if (sbp_status->dead) { 1844 if (sdev->periph != NULL) { 1845 scsipi_periph_freeze(sdev->periph, 1); 1846 sdev->freeze++; 1847 } 1848 reset_agent = 1; 1849 } 1850 1851 if (ocb == NULL) 1852 goto done; 1853 1854 switch (ntohl(ocb->orb[4]) & ORB_FMT_MSK) { 1855 case ORB_FMT_NOP: 1856 break; 1857 case ORB_FMT_VED: 1858 break; 1859 case ORB_FMT_STD: 1860 switch (ocb->flags) { 1861 case OCB_ACT_MGM: 1862 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK; 1863 reset_agent = 0; 1864 switch (orb_fun) { 1865 case ORB_FUN_LGI: 1866 { 1867 const struct fwdma_alloc *dma = &sdev->dma; 1868 const off_t sbp_login_off = 1869 sizeof(struct sbp_ocb) * SBP_QUEUE_LEN; 1870 1871 bus_dmamap_sync(dma->dma_tag, dma->dma_map, 1872 sbp_login_off, SBP_LOGIN_SIZE, 1873 BUS_DMASYNC_POSTREAD); 1874 login_res = sdev->login; 1875 login_res->len = ntohs(login_res->len); 1876 login_res->id = ntohs(login_res->id); 1877 login_res->cmd_hi = ntohs(login_res->cmd_hi); 1878 login_res->cmd_lo = ntohl(login_res->cmd_lo); 1879 if (status_valid) { 1880 SBP_DEBUG(0) 1881 printf("%s:%s:%s: login:" 1882 " len %d, ID %d, cmd %08x%08x," 1883 " recon_hold %d\n", 1884 device_xname(sc->sc_fd.dev), 1885 __func__, sdev->bustgtlun, 1886 login_res->len, login_res->id, 1887 login_res->cmd_hi, 1888 login_res->cmd_lo, 1889 ntohs(login_res->recon_hold)); 1890 END_DEBUG 1891 sbp_busy_timeout(sdev); 1892 } else { 1893 /* forgot logout? */ 1894 aprint_error_dev(sc->sc_fd.dev, 1895 "%s:%s: login failed\n", 1896 __func__, sdev->bustgtlun); 1897 sdev->status = SBP_DEV_RESET; 1898 } 1899 break; 1900 } 1901 case ORB_FUN_RCN: 1902 login_res = sdev->login; 1903 if (status_valid) { 1904 SBP_DEBUG(0) 1905 printf("%s:%s:%s: reconnect:" 1906 " len %d, ID %d, cmd %08x%08x\n", 1907 device_xname(sc->sc_fd.dev), 1908 __func__, sdev->bustgtlun, 1909 login_res->len, login_res->id, 1910 login_res->cmd_hi, 1911 login_res->cmd_lo); 1912 END_DEBUG 1913 sbp_agent_reset(sdev); 1914 } else { 1915 /* reconnection hold time exceed? */ 1916 SBP_DEBUG(0) 1917 aprint_error_dev(sc->sc_fd.dev, 1918 "%s:%s: reconnect failed\n", 1919 __func__, sdev->bustgtlun); 1920 END_DEBUG 1921 sbp_login(sdev); 1922 } 1923 break; 1924 case ORB_FUN_LGO: 1925 sdev->status = SBP_DEV_RESET; 1926 break; 1927 case ORB_FUN_RST: 1928 sbp_busy_timeout(sdev); 1929 break; 1930 case ORB_FUN_LUR: 1931 case ORB_FUN_ATA: 1932 case ORB_FUN_ATS: 1933 sbp_agent_reset(sdev); 1934 break; 1935 default: 1936 aprint_error_dev(sc->sc_fd.dev, 1937 "%s:%s: unknown function %d\n", 1938 __func__, sdev->bustgtlun, orb_fun); 1939 break; 1940 } 1941 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 1942 break; 1943 case OCB_ACT_CMD: 1944 sdev->timeout = 0; 1945 if (ocb->xs != NULL) { 1946 struct scsipi_xfer *xs = ocb->xs; 1947 1948 if (sbp_status->len > 1) 1949 sbp_scsi_status(sbp_status, ocb); 1950 else 1951 if (sbp_status->resp != SBP_REQ_CMP) 1952 xs->error = XS_DRIVER_STUFFUP; 1953 else { 1954 xs->error = XS_NOERROR; 1955 xs->resid = 0; 1956 } 1957 /* fix up inq data */ 1958 if (xs->cmd->opcode == INQUIRY) 1959 sbp_fix_inq_data(ocb); 1960 scsipi_done(xs); 1961 } 1962 break; 1963 default: 1964 break; 1965 } 1966 } 1967 1968 if (!use_doorbell) 1969 sbp_free_ocb(sdev, ocb); 1970 done: 1971 if (reset_agent) 1972 sbp_agent_reset(sdev); 1973 1974 done0: 1975 xfer->recv.pay_len = SBP_RECV_LEN; 1976 /* The received packet is usually small enough to be stored within 1977 * the buffer. In that case, the controller return ack_complete and 1978 * no respose is necessary. 1979 * 1980 * XXX fwohci.c and firewire.c should inform event_code such as 1981 * ack_complete or ack_pending to upper driver. 1982 */ 1983 #if NEED_RESPONSE 1984 xfer->send.off = 0; 1985 sfp = (struct fw_pkt *)xfer->send.buf; 1986 sfp->mode.wres.dst = rfp->mode.wreqb.src; 1987 xfer->dst = sfp->mode.wres.dst; 1988 xfer->spd = min(sdev->target->fwdev->speed, max_speed); 1989 xfer->hand = sbp_loginres_callback; 1990 1991 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt; 1992 sfp->mode.wres.tcode = FWTCODE_WRES; 1993 sfp->mode.wres.rtcode = 0; 1994 sfp->mode.wres.pri = 0; 1995 1996 if (fw_asyreq(xfer->fc, -1, xfer) != 0) { 1997 aprint_error_dev(sc->sc_fd.dev, "mgm_orb failed\n"); 1998 mutex_enter(&sc->sc_fwb.fwb_mtx); 1999 STAILQ_INSERT_TAIL(&sc->sc_fwb.xferlist, xfer, link); 2000 mutex_exit(&sc->sc_fwb.fwb_mtx); 2001 } 2002 #else 2003 /* recycle */ 2004 mutex_enter(&sc->sc_fwb.fwb_mtx); 2005 STAILQ_INSERT_TAIL(&sc->sc_fwb.xferlist, xfer, link); 2006 mutex_exit(&sc->sc_fwb.fwb_mtx); 2007 #endif 2008 2009 return; 2010 2011 } 2012 2013 static int 2014 sbp_logout_all(struct sbp_softc *sbp) 2015 { 2016 struct sbp_target *target; 2017 struct sbp_dev *sdev; 2018 int i; 2019 2020 SBP_DEBUG(0) 2021 printf("sbp_logout_all\n"); 2022 END_DEBUG 2023 target = &sbp->sc_target; 2024 if (target->luns != NULL) 2025 for (i = 0; i < target->num_lun; i++) { 2026 sdev = target->luns[i]; 2027 if (sdev == NULL) 2028 continue; 2029 callout_stop(&sdev->login_callout); 2030 if (sdev->status >= SBP_DEV_TOATTACH && 2031 sdev->status <= SBP_DEV_ATTACHED) 2032 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL); 2033 } 2034 2035 return 0; 2036 } 2037 2038 static void 2039 sbp_free_sdev(struct sbp_dev *sdev) 2040 { 2041 struct sbp_softc *sc = sdev->target->sbp; 2042 int i; 2043 2044 if (sdev == NULL) 2045 return; 2046 for (i = 0; i < SBP_QUEUE_LEN; i++) 2047 bus_dmamap_destroy(sc->sc_dmat, sdev->ocb[i].dmamap); 2048 fwdma_free(sdev->dma.dma_tag, sdev->dma.dma_map, sdev->dma.v_addr); 2049 kmem_free(sdev, sizeof(struct sbp_dev)); 2050 sdev = NULL; 2051 } 2052 2053 static void 2054 sbp_free_target(struct sbp_target *target) 2055 { 2056 struct fw_xfer *xfer, *next; 2057 int i; 2058 2059 if (target->luns == NULL) 2060 return; 2061 callout_stop(&target->mgm_ocb_timeout); 2062 for (i = 0; i < target->num_lun; i++) 2063 sbp_free_sdev(target->luns[i]); 2064 2065 for (xfer = STAILQ_FIRST(&target->xferlist); 2066 xfer != NULL; xfer = next) { 2067 next = STAILQ_NEXT(xfer, link); 2068 fw_xfer_free_buf(xfer); 2069 } 2070 STAILQ_INIT(&target->xferlist); 2071 kmem_free(target->luns, sizeof(struct sbp_dev *) * target->num_lun); 2072 target->num_lun = 0; 2073 target->luns = NULL; 2074 target->fwdev = NULL; 2075 } 2076 2077 static void 2078 sbp_scsipi_detach_sdev(struct sbp_dev *sdev) 2079 { 2080 struct sbp_target *target; 2081 struct sbp_softc *sbp; 2082 2083 if (sdev == NULL) 2084 return; 2085 2086 target = sdev->target; 2087 if (target == NULL) 2088 return; 2089 2090 sbp = target->sbp; 2091 2092 if (sdev->status == SBP_DEV_DEAD) 2093 return; 2094 if (sdev->status == SBP_DEV_RESET) 2095 return; 2096 if (sdev->periph != NULL) { 2097 scsipi_periph_thaw(sdev->periph, sdev->freeze); 2098 scsipi_channel_thaw(&sbp->sc_channel, 0); /* XXXX */ 2099 sdev->freeze = 0; 2100 if (scsipi_target_detach(&sbp->sc_channel, 2101 target->target_id, sdev->lun_id, DETACH_FORCE) != 0) { 2102 aprint_error_dev(sbp->sc_fd.dev, "detach failed\n"); 2103 } 2104 sdev->periph = NULL; 2105 } 2106 sbp_abort_all_ocbs(sdev, XS_DRIVER_STUFFUP); 2107 } 2108 2109 static void 2110 sbp_scsipi_detach_target(struct sbp_target *target) 2111 { 2112 struct sbp_softc *sbp = target->sbp; 2113 int i; 2114 2115 if (target->luns != NULL) { 2116 SBP_DEBUG(0) 2117 printf("sbp_detach_target %d\n", target->target_id); 2118 END_DEBUG 2119 for (i = 0; i < target->num_lun; i++) 2120 sbp_scsipi_detach_sdev(target->luns[i]); 2121 if (config_detach(sbp->sc_bus, DETACH_FORCE) != 0) 2122 aprint_error_dev(sbp->sc_fd.dev, "%d detach failed\n", 2123 target->target_id); 2124 sbp->sc_bus = NULL; 2125 } 2126 } 2127 2128 static void 2129 sbp_target_reset(struct sbp_dev *sdev, int method) 2130 { 2131 struct sbp_softc *sc; 2132 struct sbp_target *target = sdev->target; 2133 struct sbp_dev *tsdev; 2134 int i; 2135 2136 sc = target->sbp; 2137 for (i = 0; i < target->num_lun; i++) { 2138 tsdev = target->luns[i]; 2139 if (tsdev == NULL) 2140 continue; 2141 if (tsdev->status == SBP_DEV_DEAD) 2142 continue; 2143 if (tsdev->status == SBP_DEV_RESET) 2144 continue; 2145 if (sdev->periph != NULL) { 2146 scsipi_periph_freeze(tsdev->periph, 1); 2147 tsdev->freeze++; 2148 } 2149 sbp_abort_all_ocbs(tsdev, XS_TIMEOUT); 2150 if (method == 2) 2151 tsdev->status = SBP_DEV_LOGIN; 2152 } 2153 switch (method) { 2154 case 1: 2155 aprint_error("target reset\n"); 2156 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL); 2157 break; 2158 case 2: 2159 aprint_error("reset start\n"); 2160 sbp_reset_start(sdev); 2161 break; 2162 } 2163 } 2164 2165 static void 2166 sbp_mgm_timeout(void *arg) 2167 { 2168 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2169 struct sbp_dev *sdev = ocb->sdev; 2170 struct sbp_target *target = sdev->target; 2171 2172 aprint_error_dev(sdev->target->sbp->sc_fd.dev, 2173 "%s:%s: request timeout(mgm orb:0x%08x) ... ", 2174 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2175 target->mgm_ocb_cur = NULL; 2176 sbp_free_ocb(sdev, ocb); 2177 #if 0 2178 /* XXX */ 2179 aprint_error("run next request\n"); 2180 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 2181 #endif 2182 aprint_error_dev(sdev->target->sbp->sc_fd.dev, 2183 "%s:%s: reset start\n", __func__, sdev->bustgtlun); 2184 sbp_reset_start(sdev); 2185 } 2186 2187 static void 2188 sbp_timeout(void *arg) 2189 { 2190 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2191 struct sbp_dev *sdev = ocb->sdev; 2192 2193 aprint_error_dev(sdev->target->sbp->sc_fd.dev, 2194 "%s:%s: request timeout(cmd orb:0x%08x) ... ", 2195 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2196 2197 sdev->timeout++; 2198 switch (sdev->timeout) { 2199 case 1: 2200 aprint_error("agent reset\n"); 2201 if (sdev->periph != NULL) { 2202 scsipi_periph_freeze(sdev->periph, 1); 2203 sdev->freeze++; 2204 } 2205 sbp_abort_all_ocbs(sdev, XS_TIMEOUT); 2206 sbp_agent_reset(sdev); 2207 break; 2208 case 2: 2209 case 3: 2210 sbp_target_reset(sdev, sdev->timeout - 1); 2211 break; 2212 default: 2213 aprint_error("\n"); 2214 #if 0 2215 /* XXX give up */ 2216 sbp_scsipi_detach_target(target); 2217 if (target->luns != NULL) 2218 kmem_free(target->luns, 2219 sizeof(struct sbp_dev *) * target->num_lun); 2220 target->num_lun = 0; 2221 target->luns = NULL; 2222 target->fwdev = NULL; 2223 #endif 2224 } 2225 } 2226 2227 static void 2228 sbp_action1(struct sbp_softc *sc, struct scsipi_xfer *xs) 2229 { 2230 struct sbp_target *target = &sc->sc_target; 2231 struct sbp_dev *sdev = NULL; 2232 struct sbp_ocb *ocb; 2233 int speed, flag, error; 2234 void *cdb; 2235 2236 /* target:lun -> sdev mapping */ 2237 if (target->fwdev != NULL && 2238 xs->xs_periph->periph_lun < target->num_lun) { 2239 sdev = target->luns[xs->xs_periph->periph_lun]; 2240 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED && 2241 sdev->status != SBP_DEV_PROBE) 2242 sdev = NULL; 2243 } 2244 2245 if (sdev == NULL) { 2246 SBP_DEBUG(1) 2247 printf("%s:%d:%d: Invalid target (target needed)\n", 2248 sc ? device_xname(sc->sc_fd.dev) : "???", 2249 xs->xs_periph->periph_target, 2250 xs->xs_periph->periph_lun); 2251 END_DEBUG 2252 2253 xs->error = XS_DRIVER_STUFFUP; 2254 scsipi_done(xs); 2255 return; 2256 } 2257 2258 SBP_DEBUG(2) 2259 printf("%s:%d:%d:" 2260 " cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x," 2261 " flags: 0x%02x, %db cmd/%db data\n", 2262 device_xname(sc->sc_fd.dev), 2263 xs->xs_periph->periph_target, 2264 xs->xs_periph->periph_lun, 2265 xs->cmd->opcode, 2266 xs->cmd->bytes[0], xs->cmd->bytes[1], 2267 xs->cmd->bytes[2], xs->cmd->bytes[3], 2268 xs->cmd->bytes[4], xs->cmd->bytes[5], 2269 xs->cmd->bytes[6], xs->cmd->bytes[7], 2270 xs->cmd->bytes[8], 2271 xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT), 2272 xs->cmdlen, xs->datalen); 2273 END_DEBUG 2274 mutex_enter(&sc->sc_mtx); 2275 ocb = sbp_get_ocb(sdev); 2276 mutex_exit(&sc->sc_mtx); 2277 if (ocb == NULL) { 2278 xs->error = XS_REQUEUE; 2279 if (sdev->freeze == 0) { 2280 scsipi_periph_freeze(sdev->periph, 1); 2281 sdev->freeze++; 2282 } 2283 scsipi_done(xs); 2284 return; 2285 } 2286 2287 ocb->flags = OCB_ACT_CMD; 2288 ocb->sdev = sdev; 2289 ocb->xs = xs; 2290 ocb->orb[0] = htonl(1 << 31); 2291 ocb->orb[1] = 0; 2292 ocb->orb[2] = htonl(((sc->sc_fd.fc->nodeid | FWLOCALBUS) << 16)); 2293 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET); 2294 speed = min(target->fwdev->speed, max_speed); 2295 ocb->orb[4] = 2296 htonl(ORB_NOTIFY | ORB_CMD_SPD(speed) | ORB_CMD_MAXP(speed + 7)); 2297 if ((xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT)) == 2298 XS_CTL_DATA_IN) { 2299 ocb->orb[4] |= htonl(ORB_CMD_IN); 2300 flag = BUS_DMA_READ; 2301 } else 2302 flag = BUS_DMA_WRITE; 2303 2304 cdb = xs->cmd; 2305 memcpy((void *)&ocb->orb[5], cdb, xs->cmdlen); 2306 /* 2307 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3])); 2308 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7])); 2309 */ 2310 if (xs->datalen > 0) { 2311 error = bus_dmamap_load(sc->sc_dmat, ocb->dmamap, 2312 xs->data, xs->datalen, NULL, BUS_DMA_NOWAIT | flag); 2313 if (error) { 2314 aprint_error_dev(sc->sc_fd.dev, 2315 "DMA map load error %d\n", error); 2316 xs->error = XS_DRIVER_STUFFUP; 2317 scsipi_done(xs); 2318 } else 2319 sbp_execute_ocb(ocb, ocb->dmamap->dm_segs, 2320 ocb->dmamap->dm_nsegs); 2321 } else 2322 sbp_execute_ocb(ocb, NULL, 0); 2323 2324 return; 2325 } 2326 2327 static void 2328 sbp_execute_ocb(struct sbp_ocb *ocb, bus_dma_segment_t *segments, int seg) 2329 { 2330 struct sbp_ocb *prev; 2331 bus_dma_segment_t *s; 2332 int i; 2333 2334 SBP_DEBUG(2) 2335 printf("sbp_execute_ocb: seg %d", seg); 2336 for (i = 0; i < seg; i++) 2337 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr, 2338 (uintmax_t)segments[i].ds_len); 2339 printf("\n"); 2340 END_DEBUG 2341 2342 if (seg == 1) { 2343 /* direct pointer */ 2344 s = segments; 2345 if (s->ds_len > SBP_SEG_MAX) 2346 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2347 ocb->orb[3] = htonl(s->ds_addr); 2348 ocb->orb[4] |= htonl(s->ds_len); 2349 } else if (seg > 1) { 2350 /* page table */ 2351 for (i = 0; i < seg; i++) { 2352 s = &segments[i]; 2353 SBP_DEBUG(0) 2354 /* XXX LSI Logic "< 16 byte" bug might be hit */ 2355 if (s->ds_len < 16) 2356 printf("sbp_execute_ocb: warning, " 2357 "segment length(%jd) is less than 16." 2358 "(seg=%d/%d)\n", 2359 (uintmax_t)s->ds_len, i + 1, seg); 2360 END_DEBUG 2361 if (s->ds_len > SBP_SEG_MAX) 2362 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2363 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16); 2364 ocb->ind_ptr[i].lo = htonl(s->ds_addr); 2365 } 2366 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg); 2367 } 2368 2369 if (seg > 0) { 2370 struct sbp_softc *sc = ocb->sdev->target->sbp; 2371 const int flag = (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2372 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE; 2373 2374 bus_dmamap_sync(sc->sc_dmat, ocb->dmamap, 2375 0, ocb->dmamap->dm_mapsize, flag); 2376 } 2377 prev = sbp_enqueue_ocb(ocb->sdev, ocb); 2378 SBP_ORB_DMA_SYNC(ocb->sdev->dma, ocb->index, BUS_DMASYNC_PREWRITE); 2379 if (use_doorbell) { 2380 if (prev == NULL) { 2381 if (ocb->sdev->last_ocb != NULL) 2382 sbp_doorbell(ocb->sdev); 2383 else 2384 sbp_orb_pointer(ocb->sdev, ocb); 2385 } 2386 } else 2387 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) { 2388 ocb->sdev->flags &= ~ORB_LINK_DEAD; 2389 sbp_orb_pointer(ocb->sdev, ocb); 2390 } 2391 } 2392 2393 static struct sbp_ocb * 2394 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status) 2395 { 2396 struct sbp_softc *sc = sdev->target->sbp; 2397 struct sbp_ocb *ocb; 2398 struct sbp_ocb *next; 2399 int order = 0; 2400 int flags; 2401 2402 SBP_DEBUG(1) 2403 printf("%s:%s:%s: 0x%08x src %d\n", device_xname(sc->sc_fd.dev), 2404 __func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo), 2405 sbp_status->src); 2406 END_DEBUG 2407 mutex_enter(&sc->sc_mtx); 2408 for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) { 2409 next = STAILQ_NEXT(ocb, ocb); 2410 flags = ocb->flags; 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 Fri Sep 26 08:10:20 GMT 2025