sbp.c revision 1.32
1 /* $NetBSD: sbp.c,v 1.32 2010/05/23 18:56:59 christos 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 1.32 2010/05/23 18:56:59 christos 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, 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 newluns = (struct sbp_dev **) realloc(target->luns, 712 sizeof(struct sbp_dev *) * maxlun, 713 M_SBP, M_NOWAIT | M_ZERO); 714 715 if (newluns == NULL) { 716 aprint_error_dev(sc->sc_fd.dev, "realloc failed\n"); 717 newluns = target->luns; 718 maxlun = target->num_lun; 719 } 720 721 /* 722 * We must zero the extended region for the case 723 * realloc() doesn't allocate new buffer. 724 */ 725 if (maxlun > target->num_lun) { 726 const int sbp_dev_p_sz = sizeof(struct sbp_dev *); 727 728 memset(&newluns[target->num_lun], 0, 729 sbp_dev_p_sz * (maxlun - target->num_lun)); 730 } 731 732 target->luns = newluns; 733 target->num_lun = maxlun; 734 } 735 736 crom_init_context(&cc, target->fwdev->csrrom); 737 while (cc.depth >= 0) { 738 int new = 0; 739 740 reg = crom_search_key(&cc, CROM_LUN); 741 if (reg == NULL) 742 break; 743 lun = reg->val & 0xffff; 744 if (lun >= SBP_NUM_LUNS) { 745 aprint_error_dev(sc->sc_fd.dev, "too large lun %d\n", 746 lun); 747 goto next; 748 } 749 750 sdev = target->luns[lun]; 751 if (sdev == NULL) { 752 sdev = malloc(sizeof(struct sbp_dev), 753 M_SBP, M_NOWAIT | M_ZERO); 754 if (sdev == NULL) { 755 aprint_error_dev(sc->sc_fd.dev, 756 "malloc failed\n"); 757 goto next; 758 } 759 target->luns[lun] = sdev; 760 sdev->lun_id = lun; 761 sdev->target = target; 762 STAILQ_INIT(&sdev->ocbs); 763 callout_init(&sdev->login_callout, CALLOUT_MPSAFE); 764 callout_setfunc(&sdev->login_callout, 765 sbp_login_callout, sdev); 766 sdev->status = SBP_DEV_RESET; 767 new = 1; 768 snprintf(sdev->bustgtlun, 32, "%s:%d:%d", 769 device_xname(sc->sc_fd.dev), 770 sdev->target->target_id, 771 sdev->lun_id); 772 if (!sc->sc_lwp) 773 if (kthread_create( 774 PRI_NONE, KTHREAD_MPSAFE, NULL, 775 sbp_scsipi_scan_target, &sc->sc_target, 776 &sc->sc_lwp, 777 "sbp%d_attach", device_unit(sc->sc_fd.dev))) 778 aprint_error_dev(sc->sc_fd.dev, 779 "unable to create thread"); 780 } 781 sdev->flags |= VALID_LUN; 782 sdev->type = (reg->val & 0xff0000) >> 16; 783 784 if (new == 0) 785 goto next; 786 787 fwdma_alloc_setup(sc->sc_fd.dev, sc->sc_dmat, SBP_DMA_SIZE, 788 &sdev->dma, sizeof(uint32_t), BUS_DMA_NOWAIT); 789 if (sdev->dma.v_addr == NULL) { 790 free(sdev, M_SBP); 791 target->luns[lun] = NULL; 792 goto next; 793 } 794 sdev->ocb = (struct sbp_ocb *)sdev->dma.v_addr; 795 sdev->login = (struct sbp_login_res *)&sdev->ocb[SBP_QUEUE_LEN]; 796 memset((char *)sdev->ocb, 0, 797 sizeof(struct sbp_ocb) * SBP_QUEUE_LEN); 798 799 STAILQ_INIT(&sdev->free_ocbs); 800 for (i = 0; i < SBP_QUEUE_LEN; i++) { 801 struct sbp_ocb *ocb = &sdev->ocb[i]; 802 803 ocb->index = i; 804 ocb->bus_addr = 805 sdev->dma.bus_addr + sizeof(struct sbp_ocb) * i; 806 if (bus_dmamap_create(sc->sc_dmat, 0x100000, 807 SBP_IND_MAX, SBP_SEG_MAX, 0, 0, &ocb->dmamap)) { 808 aprint_error_dev(sc->sc_fd.dev, 809 "cannot create dmamap %d\n", i); 810 /* XXX */ 811 goto next; 812 } 813 sbp_free_ocb(sdev, ocb); /* into free queue */ 814 } 815 next: 816 crom_next(&cc); 817 } 818 819 for (lun = 0; lun < target->num_lun; lun++) { 820 sdev = target->luns[lun]; 821 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) { 822 sbp_scsipi_detach_sdev(sdev); 823 sbp_free_sdev(sdev); 824 target->luns[lun] = NULL; 825 } 826 } 827 } 828 829 static struct sbp_target * 830 sbp_alloc_target(struct sbp_softc *sc, struct fw_device *fwdev) 831 { 832 struct sbp_target *target; 833 struct crom_context cc; 834 struct csrreg *reg; 835 836 SBP_DEBUG(1) 837 printf("sbp_alloc_target\n"); 838 END_DEBUG 839 /* new target */ 840 target = &sc->sc_target; 841 target->sbp = sc; 842 target->fwdev = fwdev; 843 target->target_id = 0; 844 /* XXX we may want to reload mgm port after each bus reset */ 845 /* XXX there might be multiple management agents */ 846 crom_init_context(&cc, target->fwdev->csrrom); 847 reg = crom_search_key(&cc, CROM_MGM); 848 if (reg == NULL || reg->val == 0) { 849 aprint_error_dev(sc->sc_fd.dev, "NULL management address\n"); 850 target->fwdev = NULL; 851 return NULL; 852 } 853 target->mgm_hi = 0xffff; 854 target->mgm_lo = 0xf0000000 | (reg->val << 2); 855 target->mgm_ocb_cur = NULL; 856 SBP_DEBUG(1) 857 printf("target: mgm_port: %x\n", target->mgm_lo); 858 END_DEBUG 859 STAILQ_INIT(&target->xferlist); 860 target->n_xfer = 0; 861 STAILQ_INIT(&target->mgm_ocb_queue); 862 callout_init(&target->mgm_ocb_timeout, CALLOUT_MPSAFE); 863 864 target->luns = NULL; 865 target->num_lun = 0; 866 return target; 867 } 868 869 static void 870 sbp_probe_lun(struct sbp_dev *sdev) 871 { 872 struct fw_device *fwdev; 873 struct crom_context c, *cc = &c; 874 struct csrreg *reg; 875 876 memset(sdev->vendor, 0, sizeof(sdev->vendor)); 877 memset(sdev->product, 0, sizeof(sdev->product)); 878 879 fwdev = sdev->target->fwdev; 880 crom_init_context(cc, fwdev->csrrom); 881 /* get vendor string */ 882 crom_search_key(cc, CSRKEY_VENDOR); 883 crom_next(cc); 884 crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor)); 885 /* skip to the unit directory for SBP-2 */ 886 while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) { 887 if (reg->val == CSRVAL_T10SBP2) 888 break; 889 crom_next(cc); 890 } 891 /* get firmware revision */ 892 reg = crom_search_key(cc, CSRKEY_FIRM_VER); 893 if (reg != NULL) 894 snprintf(sdev->revision, sizeof(sdev->revision), "%06x", 895 reg->val); 896 /* get product string */ 897 crom_search_key(cc, CSRKEY_MODEL); 898 crom_next(cc); 899 crom_parse_text(cc, sdev->product, sizeof(sdev->product)); 900 } 901 902 static void 903 sbp_login_callout(void *arg) 904 { 905 struct sbp_dev *sdev = (struct sbp_dev *)arg; 906 907 sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL); 908 } 909 910 static void 911 sbp_login(struct sbp_dev *sdev) 912 { 913 struct sbp_softc *sc = sdev->target->sbp; 914 struct timeval delta; 915 struct timeval t; 916 int ticks = 0; 917 918 microtime(&delta); 919 timersub(&delta, &sc->sc_last_busreset, &delta); 920 t.tv_sec = login_delay / 1000; 921 t.tv_usec = (login_delay % 1000) * 1000; 922 timersub(&t, &delta, &t); 923 if (t.tv_sec >= 0 && t.tv_usec > 0) 924 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000; 925 SBP_DEBUG(0) 926 printf("%s: sec = %lld usec = %ld ticks = %d\n", __func__, 927 (long long)t.tv_sec, (long)t.tv_usec, ticks); 928 END_DEBUG 929 callout_schedule(&sdev->login_callout, ticks); 930 } 931 932 static void 933 sbp_probe_target(void *arg) 934 { 935 struct sbp_target *target = (struct sbp_target *)arg; 936 struct sbp_dev *sdev; 937 int i; 938 939 SBP_DEBUG(1) 940 printf("%s %d\n", __func__, target->target_id); 941 END_DEBUG 942 943 sbp_alloc_lun(target); 944 945 /* XXX untimeout mgm_ocb and dequeue */ 946 for (i = 0; i < target->num_lun; i++) { 947 sdev = target->luns[i]; 948 if (sdev == NULL || sdev->status == SBP_DEV_DEAD) 949 continue; 950 951 if (sdev->periph != NULL) { 952 scsipi_periph_freeze(sdev->periph, 1); 953 sdev->freeze++; 954 } 955 sbp_probe_lun(sdev); 956 sbp_show_sdev_info(sdev); 957 958 sbp_abort_all_ocbs(sdev, XS_RESET); 959 switch (sdev->status) { 960 case SBP_DEV_RESET: 961 /* new or revived target */ 962 if (auto_login) 963 sbp_login(sdev); 964 break; 965 case SBP_DEV_TOATTACH: 966 case SBP_DEV_PROBE: 967 case SBP_DEV_ATTACHED: 968 case SBP_DEV_RETRY: 969 default: 970 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL); 971 break; 972 } 973 } 974 } 975 976 static void 977 sbp_post_busreset(void *arg) 978 { 979 struct sbp_softc *sc = (struct sbp_softc *)arg; 980 struct sbp_target *target = &sc->sc_target; 981 struct fw_device *fwdev = target->fwdev; 982 int alive; 983 984 alive = SBP_FWDEV_ALIVE(fwdev); 985 SBP_DEBUG(0) 986 printf("sbp_post_busreset\n"); 987 if (!alive) 988 printf("not alive\n"); 989 END_DEBUG 990 microtime(&sc->sc_last_busreset); 991 992 if (!alive) 993 return; 994 995 scsipi_channel_freeze(&sc->sc_channel, 1); 996 } 997 998 static void 999 sbp_post_explore(void *arg) 1000 { 1001 struct sbp_softc *sc = (struct sbp_softc *)arg; 1002 struct sbp_target *target = &sc->sc_target; 1003 struct fw_device *fwdev = target->fwdev; 1004 int alive; 1005 1006 alive = SBP_FWDEV_ALIVE(fwdev); 1007 SBP_DEBUG(0) 1008 printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold); 1009 if (!alive) 1010 printf("not alive\n"); 1011 END_DEBUG 1012 if (!alive) 1013 return; 1014 1015 if (!firewire_phydma_enable) 1016 return; 1017 1018 if (sbp_cold > 0) 1019 sbp_cold--; 1020 1021 SBP_DEBUG(0) 1022 printf("sbp_post_explore: EUI:%08x%08x ", fwdev->eui.hi, fwdev->eui.lo); 1023 END_DEBUG 1024 sbp_probe_target((void *)target); 1025 if (target->num_lun == 0) 1026 sbp_free_target(target); 1027 1028 scsipi_channel_thaw(&sc->sc_channel, 1); 1029 } 1030 1031 #if NEED_RESPONSE 1032 static void 1033 sbp_loginres_callback(struct fw_xfer *xfer) 1034 { 1035 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1036 struct sbp_softc *sc = sdev->target->sbp; 1037 1038 SBP_DEBUG(1) 1039 printf("sbp_loginres_callback\n"); 1040 END_DEBUG 1041 /* recycle */ 1042 mutex_enter(&sc->sc_fwb.fwb_mtx); 1043 STAILQ_INSERT_TAIL(&sc->sc_fwb.xferlist, xfer, link); 1044 mutex_exit(&sc->sc_fwb.fwb_mtx); 1045 return; 1046 } 1047 #endif 1048 1049 static inline void 1050 sbp_xfer_free(struct fw_xfer *xfer) 1051 { 1052 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1053 struct sbp_softc *sc = sdev->target->sbp; 1054 1055 fw_xfer_unload(xfer); 1056 mutex_enter(&sc->sc_mtx); 1057 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link); 1058 mutex_exit(&sc->sc_mtx); 1059 } 1060 1061 static void 1062 sbp_reset_start_callback(struct fw_xfer *xfer) 1063 { 1064 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc; 1065 struct sbp_target *target = sdev->target; 1066 int i; 1067 1068 if (xfer->resp != 0) 1069 aprint_error("%s: sbp_reset_start failed: resp=%d\n", 1070 sdev->bustgtlun, xfer->resp); 1071 1072 for (i = 0; i < target->num_lun; i++) { 1073 tsdev = target->luns[i]; 1074 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN) 1075 sbp_login(tsdev); 1076 } 1077 } 1078 1079 static void 1080 sbp_reset_start(struct sbp_dev *sdev) 1081 { 1082 struct fw_xfer *xfer; 1083 struct fw_pkt *fp; 1084 1085 SBP_DEBUG(0) 1086 printf("%s: sbp_reset_start: %s\n", 1087 device_xname(sdev->target->sbp->sc_fd.dev), sdev->bustgtlun); 1088 END_DEBUG 1089 1090 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 1091 if (xfer == NULL) 1092 return; 1093 xfer->hand = sbp_reset_start_callback; 1094 fp = &xfer->send.hdr; 1095 fp->mode.wreqq.dest_hi = 0xffff; 1096 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START; 1097 fp->mode.wreqq.data = htonl(0xf); 1098 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1099 sbp_xfer_free(xfer); 1100 } 1101 1102 static void 1103 sbp_mgm_callback(struct fw_xfer *xfer) 1104 { 1105 struct sbp_dev *sdev; 1106 int resp; 1107 1108 sdev = (struct sbp_dev *)xfer->sc; 1109 1110 SBP_DEBUG(1) 1111 printf("%s: sbp_mgm_callback: %s\n", 1112 device_xname(sdev->target->sbp->sc_fd.dev), sdev->bustgtlun); 1113 END_DEBUG 1114 resp = xfer->resp; 1115 sbp_xfer_free(xfer); 1116 return; 1117 } 1118 1119 static void 1120 sbp_scsipi_scan_target(void *arg) 1121 { 1122 struct sbp_target *target = (struct sbp_target *)arg; 1123 struct sbp_softc *sc = target->sbp; 1124 struct sbp_dev *sdev; 1125 struct scsipi_channel *chan = &sc->sc_channel; 1126 struct scsibus_softc *sc_bus = device_private(sc->sc_bus); 1127 int lun, yet; 1128 1129 do { 1130 mutex_enter(&sc->sc_mtx); 1131 cv_wait_sig(&sc->sc_cv, &sc->sc_mtx); 1132 mutex_exit(&sc->sc_mtx); 1133 yet = 0; 1134 1135 for (lun = 0; lun < target->num_lun; lun++) { 1136 sdev = target->luns[lun]; 1137 if (sdev == NULL) 1138 continue; 1139 if (sdev->status != SBP_DEV_PROBE) { 1140 yet++; 1141 continue; 1142 } 1143 1144 if (sdev->periph == NULL) { 1145 if (chan->chan_nluns < target->num_lun) 1146 chan->chan_nluns = target->num_lun; 1147 1148 scsi_probe_bus(sc_bus, target->target_id, 1149 sdev->lun_id); 1150 sdev->periph = scsipi_lookup_periph(chan, 1151 target->target_id, lun); 1152 } 1153 sdev->status = SBP_DEV_ATTACHED; 1154 } 1155 } while (yet > 0); 1156 1157 sc->sc_lwp = NULL; 1158 kthread_exit(0); 1159 1160 /* NOTREACHED */ 1161 } 1162 1163 static inline void 1164 sbp_scan_dev(struct sbp_dev *sdev) 1165 { 1166 struct sbp_softc *sc = sdev->target->sbp; 1167 1168 sdev->status = SBP_DEV_PROBE; 1169 mutex_enter(&sc->sc_mtx); 1170 cv_signal(&sdev->target->sbp->sc_cv); 1171 mutex_exit(&sc->sc_mtx); 1172 } 1173 1174 1175 static void 1176 sbp_do_attach(struct fw_xfer *xfer) 1177 { 1178 struct sbp_dev *sdev; 1179 struct sbp_target *target; 1180 struct sbp_softc *sc; 1181 1182 sdev = (struct sbp_dev *)xfer->sc; 1183 target = sdev->target; 1184 sc = target->sbp; 1185 1186 SBP_DEBUG(0) 1187 printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, 1188 sdev->bustgtlun); 1189 END_DEBUG 1190 sbp_xfer_free(xfer); 1191 1192 sbp_scan_dev(sdev); 1193 return; 1194 } 1195 1196 static void 1197 sbp_agent_reset_callback(struct fw_xfer *xfer) 1198 { 1199 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1200 struct sbp_softc *sc = sdev->target->sbp; 1201 1202 SBP_DEBUG(1) 1203 printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, 1204 sdev->bustgtlun); 1205 END_DEBUG 1206 if (xfer->resp != 0) 1207 aprint_error_dev(sc->sc_fd.dev, "%s:%s: resp=%d\n", __func__, 1208 sdev->bustgtlun, xfer->resp); 1209 1210 sbp_xfer_free(xfer); 1211 if (sdev->periph != NULL) { 1212 scsipi_periph_thaw(sdev->periph, sdev->freeze); 1213 scsipi_channel_thaw(&sc->sc_channel, 0); 1214 sdev->freeze = 0; 1215 } 1216 } 1217 1218 static void 1219 sbp_agent_reset(struct sbp_dev *sdev) 1220 { 1221 struct fw_xfer *xfer; 1222 struct fw_pkt *fp; 1223 1224 SBP_DEBUG(0) 1225 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1226 __func__, sdev->bustgtlun); 1227 END_DEBUG 1228 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04); 1229 if (xfer == NULL) 1230 return; 1231 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE) 1232 xfer->hand = sbp_agent_reset_callback; 1233 else 1234 xfer->hand = sbp_do_attach; 1235 fp = &xfer->send.hdr; 1236 fp->mode.wreqq.data = htonl(0xf); 1237 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1238 sbp_xfer_free(xfer); 1239 sbp_abort_all_ocbs(sdev, XS_RESET); 1240 } 1241 1242 static void 1243 sbp_busy_timeout_callback(struct fw_xfer *xfer) 1244 { 1245 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1246 1247 SBP_DEBUG(1) 1248 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1249 __func__, sdev->bustgtlun); 1250 END_DEBUG 1251 sbp_xfer_free(xfer); 1252 sbp_agent_reset(sdev); 1253 } 1254 1255 static void 1256 sbp_busy_timeout(struct sbp_dev *sdev) 1257 { 1258 struct fw_pkt *fp; 1259 struct fw_xfer *xfer; 1260 1261 SBP_DEBUG(0) 1262 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1263 __func__, sdev->bustgtlun); 1264 END_DEBUG 1265 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 1266 if (xfer == NULL) 1267 return; 1268 xfer->hand = sbp_busy_timeout_callback; 1269 fp = &xfer->send.hdr; 1270 fp->mode.wreqq.dest_hi = 0xffff; 1271 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT; 1272 fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf); 1273 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1274 sbp_xfer_free(xfer); 1275 } 1276 1277 static void 1278 sbp_orb_pointer_callback(struct fw_xfer *xfer) 1279 { 1280 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1281 struct sbp_softc *sc = sdev->target->sbp; 1282 1283 SBP_DEBUG(1) 1284 printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, 1285 sdev->bustgtlun); 1286 END_DEBUG 1287 if (xfer->resp != 0) 1288 aprint_error_dev(sc->sc_fd.dev, "%s:%s: xfer->resp = %d\n", 1289 __func__, sdev->bustgtlun, xfer->resp); 1290 sbp_xfer_free(xfer); 1291 sdev->flags &= ~ORB_POINTER_ACTIVE; 1292 1293 if ((sdev->flags & ORB_POINTER_NEED) != 0) { 1294 struct sbp_ocb *ocb; 1295 1296 sdev->flags &= ~ORB_POINTER_NEED; 1297 ocb = STAILQ_FIRST(&sdev->ocbs); 1298 if (ocb != NULL) 1299 sbp_orb_pointer(sdev, ocb); 1300 } 1301 return; 1302 } 1303 1304 static void 1305 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb) 1306 { 1307 struct sbp_softc *sc = sdev->target->sbp; 1308 struct fw_xfer *xfer; 1309 struct fw_pkt *fp; 1310 1311 SBP_DEBUG(1) 1312 printf("%s:%s:%s: 0x%08x\n", device_xname(sc->sc_fd.dev), __func__, 1313 sdev->bustgtlun, (uint32_t)ocb->bus_addr); 1314 END_DEBUG 1315 1316 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) { 1317 SBP_DEBUG(0) 1318 printf("%s: orb pointer active\n", __func__); 1319 END_DEBUG 1320 sdev->flags |= ORB_POINTER_NEED; 1321 return; 1322 } 1323 1324 sdev->flags |= ORB_POINTER_ACTIVE; 1325 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08); 1326 if (xfer == NULL) 1327 return; 1328 xfer->hand = sbp_orb_pointer_callback; 1329 1330 fp = &xfer->send.hdr; 1331 fp->mode.wreqb.len = 8; 1332 fp->mode.wreqb.extcode = 0; 1333 xfer->send.payload[0] = 1334 htonl(((sc->sc_fd.fc->nodeid | FWLOCALBUS) << 16)); 1335 xfer->send.payload[1] = htonl((uint32_t)ocb->bus_addr); 1336 1337 if (fw_asyreq(xfer->fc, -1, xfer) != 0) { 1338 sbp_xfer_free(xfer); 1339 ocb->xs->error = XS_DRIVER_STUFFUP; 1340 scsipi_done(ocb->xs); 1341 } 1342 } 1343 1344 static void 1345 sbp_doorbell_callback(struct fw_xfer *xfer) 1346 { 1347 struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; 1348 struct sbp_softc *sc = sdev->target->sbp; 1349 1350 SBP_DEBUG(1) 1351 printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, 1352 sdev->bustgtlun); 1353 END_DEBUG 1354 if (xfer->resp != 0) { 1355 aprint_error_dev(sc->sc_fd.dev, "%s: xfer->resp = %d\n", 1356 __func__, xfer->resp); 1357 } 1358 sbp_xfer_free(xfer); 1359 sdev->flags &= ~ORB_DOORBELL_ACTIVE; 1360 if ((sdev->flags & ORB_DOORBELL_NEED) != 0) { 1361 sdev->flags &= ~ORB_DOORBELL_NEED; 1362 sbp_doorbell(sdev); 1363 } 1364 return; 1365 } 1366 1367 static void 1368 sbp_doorbell(struct sbp_dev *sdev) 1369 { 1370 struct fw_xfer *xfer; 1371 struct fw_pkt *fp; 1372 1373 SBP_DEBUG(1) 1374 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1375 __func__, sdev->bustgtlun); 1376 END_DEBUG 1377 1378 if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) { 1379 sdev->flags |= ORB_DOORBELL_NEED; 1380 return; 1381 } 1382 sdev->flags |= ORB_DOORBELL_ACTIVE; 1383 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10); 1384 if (xfer == NULL) 1385 return; 1386 xfer->hand = sbp_doorbell_callback; 1387 fp = &xfer->send.hdr; 1388 fp->mode.wreqq.data = htonl(0xf); 1389 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1390 sbp_xfer_free(xfer); 1391 } 1392 1393 static struct fw_xfer * 1394 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset) 1395 { 1396 struct sbp_softc *sc; 1397 struct fw_xfer *xfer; 1398 struct fw_pkt *fp; 1399 struct sbp_target *target; 1400 int new = 0; 1401 1402 target = sdev->target; 1403 sc = target->sbp; 1404 mutex_enter(&sc->sc_mtx); 1405 xfer = STAILQ_FIRST(&target->xferlist); 1406 if (xfer == NULL) { 1407 if (target->n_xfer > 5 /* XXX */) { 1408 aprint_error_dev(sc->sc_fd.dev, 1409 "no more xfer for this target\n"); 1410 mutex_exit(&sc->sc_mtx); 1411 return NULL; 1412 } 1413 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0); 1414 if (xfer == NULL) { 1415 aprint_error_dev(sc->sc_fd.dev, 1416 "fw_xfer_alloc_buf failed\n"); 1417 mutex_exit(&sc->sc_mtx); 1418 return NULL; 1419 } 1420 target->n_xfer++; 1421 SBP_DEBUG(0) 1422 printf("sbp: alloc %d xfer\n", target->n_xfer); 1423 END_DEBUG 1424 new = 1; 1425 } else 1426 STAILQ_REMOVE_HEAD(&target->xferlist, link); 1427 mutex_exit(&sc->sc_mtx); 1428 1429 microtime(&xfer->tv); 1430 1431 if (new) { 1432 xfer->recv.pay_len = 0; 1433 xfer->send.spd = min(target->fwdev->speed, max_speed); 1434 xfer->fc = target->sbp->sc_fd.fc; 1435 } 1436 1437 if (tcode == FWTCODE_WREQB) 1438 xfer->send.pay_len = 8; 1439 else 1440 xfer->send.pay_len = 0; 1441 1442 xfer->sc = (void *)sdev; 1443 fp = &xfer->send.hdr; 1444 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi; 1445 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset; 1446 fp->mode.wreqq.tlrt = 0; 1447 fp->mode.wreqq.tcode = tcode; 1448 fp->mode.wreqq.pri = 0; 1449 fp->mode.wreqq.dst = FWLOCALBUS | target->fwdev->dst; 1450 1451 return xfer; 1452 } 1453 1454 static void 1455 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb) 1456 { 1457 struct fw_xfer *xfer; 1458 struct fw_pkt *fp; 1459 struct sbp_ocb *ocb; 1460 struct sbp_target *target; 1461 int nid, dv_unit; 1462 1463 target = sdev->target; 1464 nid = target->sbp->sc_fd.fc->nodeid | FWLOCALBUS; 1465 dv_unit = device_unit(target->sbp->sc_fd.dev); 1466 1467 mutex_enter(&target->sbp->sc_mtx); 1468 if (func == ORB_FUN_RUNQUEUE) { 1469 ocb = STAILQ_FIRST(&target->mgm_ocb_queue); 1470 if (target->mgm_ocb_cur != NULL || ocb == NULL) { 1471 mutex_exit(&target->sbp->sc_mtx); 1472 return; 1473 } 1474 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb); 1475 mutex_exit(&target->sbp->sc_mtx); 1476 goto start; 1477 } 1478 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 1479 mutex_exit(&target->sbp->sc_mtx); 1480 /* XXX */ 1481 return; 1482 } 1483 mutex_exit(&target->sbp->sc_mtx); 1484 ocb->flags = OCB_ACT_MGM; 1485 ocb->sdev = sdev; 1486 1487 memset(ocb->orb, 0, sizeof(ocb->orb)); 1488 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI); 1489 ocb->orb[7] = htonl(SBP_DEV2ADDR(dv_unit, sdev->lun_id)); 1490 1491 SBP_DEBUG(0) 1492 printf("%s:%s:%s: %s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1493 __func__, sdev->bustgtlun, orb_fun_name[(func>>16)&0xf]); 1494 END_DEBUG 1495 switch (func) { 1496 case ORB_FUN_LGI: 1497 { 1498 const off_t sbp_login_off = 1499 sizeof(struct sbp_ocb) * SBP_QUEUE_LEN; 1500 1501 ocb->orb[0] = ocb->orb[1] = 0; /* password */ 1502 ocb->orb[2] = htonl(nid << 16); 1503 ocb->orb[3] = htonl(sdev->dma.bus_addr + sbp_login_off); 1504 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id); 1505 if (ex_login) 1506 ocb->orb[4] |= htonl(ORB_EXV); 1507 ocb->orb[5] = htonl(SBP_LOGIN_SIZE); 1508 bus_dmamap_sync(sdev->dma.dma_tag, sdev->dma.dma_map, 1509 sbp_login_off, SBP_LOGIN_SIZE, BUS_DMASYNC_PREREAD); 1510 break; 1511 } 1512 1513 case ORB_FUN_ATA: 1514 ocb->orb[0] = htonl((0 << 16) | 0); 1515 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff); 1516 /* fall through */ 1517 case ORB_FUN_RCN: 1518 case ORB_FUN_LGO: 1519 case ORB_FUN_LUR: 1520 case ORB_FUN_RST: 1521 case ORB_FUN_ATS: 1522 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id); 1523 break; 1524 } 1525 1526 if (target->mgm_ocb_cur != NULL) { 1527 /* there is a standing ORB */ 1528 mutex_enter(&target->sbp->sc_mtx); 1529 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb); 1530 mutex_exit(&target->sbp->sc_mtx); 1531 return; 1532 } 1533 start: 1534 target->mgm_ocb_cur = ocb; 1535 1536 callout_reset(&target->mgm_ocb_timeout, 5 * hz, sbp_mgm_timeout, ocb); 1537 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0); 1538 if (xfer == NULL) 1539 return; 1540 xfer->hand = sbp_mgm_callback; 1541 1542 fp = &xfer->send.hdr; 1543 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi; 1544 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo; 1545 fp->mode.wreqb.len = 8; 1546 fp->mode.wreqb.extcode = 0; 1547 xfer->send.payload[0] = htonl(nid << 16); 1548 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff); 1549 1550 /* cache writeback & invalidate(required ORB_FUN_LGI func) */ 1551 /* when abort_ocb, should sync POST ope ? */ 1552 SBP_ORB_DMA_SYNC(sdev->dma, ocb->index, BUS_DMASYNC_PREWRITE); 1553 if (fw_asyreq(xfer->fc, -1, xfer) != 0) 1554 sbp_xfer_free(xfer); 1555 } 1556 1557 static void 1558 sbp_print_scsi_cmd(struct sbp_ocb *ocb) 1559 { 1560 struct scsipi_xfer *xs = ocb->xs; 1561 1562 printf("%s:%d:%d:" 1563 " cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x," 1564 " flags: 0x%02x, %db cmd/%db data\n", 1565 device_xname(ocb->sdev->target->sbp->sc_fd.dev), 1566 xs->xs_periph->periph_target, 1567 xs->xs_periph->periph_lun, 1568 xs->cmd->opcode, 1569 xs->cmd->bytes[0], xs->cmd->bytes[1], 1570 xs->cmd->bytes[2], xs->cmd->bytes[3], 1571 xs->cmd->bytes[4], xs->cmd->bytes[5], 1572 xs->cmd->bytes[6], xs->cmd->bytes[7], 1573 xs->cmd->bytes[8], 1574 xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT), 1575 xs->cmdlen, xs->datalen); 1576 } 1577 1578 static void 1579 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb) 1580 { 1581 struct sbp_cmd_status *sbp_cmd_status; 1582 struct scsi_sense_data *sense = &ocb->xs->sense.scsi_sense; 1583 1584 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data; 1585 1586 SBP_DEBUG(0) 1587 sbp_print_scsi_cmd(ocb); 1588 /* XXX need decode status */ 1589 printf("%s:" 1590 " SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n", 1591 ocb->sdev->bustgtlun, 1592 sbp_cmd_status->status, 1593 sbp_cmd_status->sfmt, 1594 sbp_cmd_status->valid, 1595 sbp_cmd_status->s_key, 1596 sbp_cmd_status->s_code, 1597 sbp_cmd_status->s_qlfr, 1598 sbp_status->len); 1599 END_DEBUG 1600 1601 switch (sbp_cmd_status->status) { 1602 case SCSI_CHECK: 1603 case SCSI_BUSY: 1604 case SCSI_TERMINATED: 1605 if (sbp_cmd_status->sfmt == SBP_SFMT_CURR) 1606 sense->response_code = SSD_RCODE_CURRENT; 1607 else 1608 sense->response_code = SSD_RCODE_DEFERRED; 1609 if (sbp_cmd_status->valid) 1610 sense->response_code |= SSD_RCODE_VALID; 1611 sense->flags = sbp_cmd_status->s_key; 1612 if (sbp_cmd_status->mark) 1613 sense->flags |= SSD_FILEMARK; 1614 if (sbp_cmd_status->eom) 1615 sense->flags |= SSD_EOM; 1616 if (sbp_cmd_status->ill_len) 1617 sense->flags |= SSD_ILI; 1618 1619 memcpy(sense->info, &sbp_cmd_status->info, 4); 1620 1621 if (sbp_status->len <= 1) 1622 /* XXX not scsi status. shouldn't be happened */ 1623 sense->extra_len = 0; 1624 else if (sbp_status->len <= 4) 1625 /* add_sense_code(_qual), info, cmd_spec_info */ 1626 sense->extra_len = 6; 1627 else 1628 /* fru, sense_key_spec */ 1629 sense->extra_len = 10; 1630 1631 memcpy(sense->csi, &sbp_cmd_status->cdb, 4); 1632 1633 sense->asc = sbp_cmd_status->s_code; 1634 sense->ascq = sbp_cmd_status->s_qlfr; 1635 sense->fru = sbp_cmd_status->fru; 1636 1637 memcpy(sense->sks.sks_bytes, sbp_cmd_status->s_keydep, 3); 1638 ocb->xs->error = XS_SENSE; 1639 ocb->xs->xs_status = sbp_cmd_status->status; 1640 /* 1641 { 1642 uint8_t j, *tmp; 1643 tmp = sense; 1644 for (j = 0; j < 32; j += 8) 1645 aprint_normal( 1646 "sense %02x%02x %02x%02x %02x%02x %02x%02x\n", 1647 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3], 1648 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]); 1649 1650 } 1651 */ 1652 break; 1653 default: 1654 aprint_error_dev(ocb->sdev->target->sbp->sc_fd.dev, 1655 "%s:%s: unknown scsi status 0x%x\n", 1656 __func__, ocb->sdev->bustgtlun, sbp_cmd_status->status); 1657 } 1658 } 1659 1660 static void 1661 sbp_fix_inq_data(struct sbp_ocb *ocb) 1662 { 1663 struct scsipi_xfer *xs = ocb->xs; 1664 struct sbp_dev *sdev; 1665 struct scsipi_inquiry_data *inq = 1666 (struct scsipi_inquiry_data *)xs->data; 1667 1668 sdev = ocb->sdev; 1669 1670 #if 0 1671 /* 1672 * NetBSD is assuming always 0 for EVPD-bit and 'Page Code'. 1673 */ 1674 #define SI_EVPD 0x01 1675 if (xs->cmd->bytes[0] & SI_EVPD) 1676 return; 1677 #endif 1678 SBP_DEBUG(1) 1679 printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), 1680 __func__, sdev->bustgtlun); 1681 END_DEBUG 1682 switch (inq->device & SID_TYPE) { 1683 case T_DIRECT: 1684 #if 0 1685 /* 1686 * XXX Convert Direct Access device to RBC. 1687 * I've never seen FireWire DA devices which support READ_6. 1688 */ 1689 if ((inq->device & SID_TYPE) == T_DIRECT) 1690 inq->device |= T_SIMPLE_DIRECT; /* T_DIRECT == 0 */ 1691 #endif 1692 /* FALLTHROUGH */ 1693 1694 case T_SIMPLE_DIRECT: 1695 /* 1696 * Override vendor/product/revision information. 1697 * Some devices sometimes return strange strings. 1698 */ 1699 #if 1 1700 memcpy(inq->vendor, sdev->vendor, sizeof(inq->vendor)); 1701 memcpy(inq->product, sdev->product, sizeof(inq->product)); 1702 memcpy(inq->revision + 2, sdev->revision, 1703 sizeof(inq->revision)); 1704 #endif 1705 break; 1706 } 1707 /* 1708 * Force to enable/disable tagged queuing. 1709 * XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page. 1710 */ 1711 if (sbp_tags > 0) 1712 inq->flags3 |= SID_CmdQue; 1713 else if (sbp_tags < 0) 1714 inq->flags3 &= ~SID_CmdQue; 1715 1716 } 1717 1718 static void 1719 sbp_recv(struct fw_xfer *xfer) 1720 { 1721 struct fw_pkt *rfp; 1722 #if NEED_RESPONSE 1723 struct fw_pkt *sfp; 1724 #endif 1725 struct sbp_softc *sc; 1726 struct sbp_dev *sdev; 1727 struct sbp_ocb *ocb; 1728 struct sbp_login_res *login_res = NULL; 1729 struct sbp_status *sbp_status; 1730 struct sbp_target *target; 1731 int orb_fun, status_valid0, status_valid, l, reset_agent = 0; 1732 uint32_t addr; 1733 /* 1734 uint32_t *ld; 1735 ld = xfer->recv.buf; 1736 printf("sbp %x %d %d %08x %08x %08x %08x\n", 1737 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1738 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1739 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11])); 1740 */ 1741 1742 sc = (struct sbp_softc *)xfer->sc; 1743 if (xfer->resp != 0) { 1744 aprint_error_dev(sc->sc_fd.dev, 1745 "sbp_recv: xfer->resp = %d\n", xfer->resp); 1746 goto done0; 1747 } 1748 if (xfer->recv.payload == NULL) { 1749 aprint_error_dev(sc->sc_fd.dev, 1750 "sbp_recv: xfer->recv.payload == NULL\n"); 1751 goto done0; 1752 } 1753 rfp = &xfer->recv.hdr; 1754 if (rfp->mode.wreqb.tcode != FWTCODE_WREQB) { 1755 aprint_error_dev(sc->sc_fd.dev, 1756 "sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode); 1757 goto done0; 1758 } 1759 sbp_status = (struct sbp_status *)xfer->recv.payload; 1760 addr = rfp->mode.wreqb.dest_lo; 1761 SBP_DEBUG(2) 1762 printf("received address 0x%x\n", addr); 1763 END_DEBUG 1764 target = &sc->sc_target; 1765 l = SBP_ADDR2LUN(addr); 1766 if (l >= target->num_lun || target->luns[l] == NULL) { 1767 aprint_error_dev(sc->sc_fd.dev, 1768 "sbp_recv1: invalid lun %d (target=%d)\n", 1769 l, target->target_id); 1770 goto done0; 1771 } 1772 sdev = target->luns[l]; 1773 1774 ocb = NULL; 1775 switch (sbp_status->src) { 1776 case SRC_NEXT_EXISTS: 1777 case SRC_NO_NEXT: 1778 /* check mgm_ocb_cur first */ 1779 ocb = target->mgm_ocb_cur; 1780 if (ocb != NULL) 1781 if (OCB_MATCH(ocb, sbp_status)) { 1782 callout_stop(&target->mgm_ocb_timeout); 1783 target->mgm_ocb_cur = NULL; 1784 break; 1785 } 1786 ocb = sbp_dequeue_ocb(sdev, sbp_status); 1787 if (ocb == NULL) 1788 aprint_error_dev(sc->sc_fd.dev, 1789 "%s:%s: No ocb(%x) on the queue\n", __func__, 1790 sdev->bustgtlun, ntohl(sbp_status->orb_lo)); 1791 break; 1792 case SRC_UNSOL: 1793 /* unsolicit */ 1794 aprint_error_dev(sc->sc_fd.dev, 1795 "%s:%s: unsolicit status received\n", 1796 __func__, sdev->bustgtlun); 1797 break; 1798 default: 1799 aprint_error_dev(sc->sc_fd.dev, 1800 "%s:%s: unknown sbp_status->src\n", 1801 __func__, sdev->bustgtlun); 1802 } 1803 1804 status_valid0 = (sbp_status->src < 2 1805 && sbp_status->resp == SBP_REQ_CMP 1806 && sbp_status->dead == 0); 1807 status_valid = (status_valid0 && sbp_status->status == 0); 1808 1809 if (!status_valid0 || debug > 2) { 1810 int status; 1811 SBP_DEBUG(0) 1812 printf("%s:%s:%s: ORB status src:%x resp:%x dead:%x" 1813 " len:%x stat:%x orb:%x%08x\n", 1814 device_xname(sc->sc_fd.dev), __func__, sdev->bustgtlun, 1815 sbp_status->src, sbp_status->resp, sbp_status->dead, 1816 sbp_status->len, sbp_status->status, 1817 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo)); 1818 END_DEBUG 1819 printf("%s:%s\n", device_xname(sc->sc_fd.dev), sdev->bustgtlun); 1820 status = sbp_status->status; 1821 switch (sbp_status->resp) { 1822 case SBP_REQ_CMP: 1823 if (status > MAX_ORB_STATUS0) 1824 printf("%s\n", orb_status0[MAX_ORB_STATUS0]); 1825 else 1826 printf("%s\n", orb_status0[status]); 1827 break; 1828 case SBP_TRANS_FAIL: 1829 printf("Obj: %s, Error: %s\n", 1830 orb_status1_object[(status>>6) & 3], 1831 orb_status1_serial_bus_error[status & 0xf]); 1832 break; 1833 case SBP_ILLE_REQ: 1834 printf("Illegal request\n"); 1835 break; 1836 case SBP_VEND_DEP: 1837 printf("Vendor dependent\n"); 1838 break; 1839 default: 1840 printf("unknown respose code %d\n", sbp_status->resp); 1841 } 1842 } 1843 1844 /* we have to reset the fetch agent if it's dead */ 1845 if (sbp_status->dead) { 1846 if (sdev->periph != NULL) { 1847 scsipi_periph_freeze(sdev->periph, 1); 1848 sdev->freeze++; 1849 } 1850 reset_agent = 1; 1851 } 1852 1853 if (ocb == NULL) 1854 goto done; 1855 1856 switch (ntohl(ocb->orb[4]) & ORB_FMT_MSK) { 1857 case ORB_FMT_NOP: 1858 break; 1859 case ORB_FMT_VED: 1860 break; 1861 case ORB_FMT_STD: 1862 switch (ocb->flags) { 1863 case OCB_ACT_MGM: 1864 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK; 1865 reset_agent = 0; 1866 switch (orb_fun) { 1867 case ORB_FUN_LGI: 1868 { 1869 const struct fwdma_alloc *dma = &sdev->dma; 1870 const off_t sbp_login_off = 1871 sizeof(struct sbp_ocb) * SBP_QUEUE_LEN; 1872 1873 bus_dmamap_sync(dma->dma_tag, dma->dma_map, 1874 sbp_login_off, SBP_LOGIN_SIZE, 1875 BUS_DMASYNC_POSTREAD); 1876 login_res = sdev->login; 1877 login_res->len = ntohs(login_res->len); 1878 login_res->id = ntohs(login_res->id); 1879 login_res->cmd_hi = ntohs(login_res->cmd_hi); 1880 login_res->cmd_lo = ntohl(login_res->cmd_lo); 1881 if (status_valid) { 1882 SBP_DEBUG(0) 1883 printf("%s:%s:%s: login:" 1884 " len %d, ID %d, cmd %08x%08x," 1885 " recon_hold %d\n", 1886 device_xname(sc->sc_fd.dev), 1887 __func__, sdev->bustgtlun, 1888 login_res->len, login_res->id, 1889 login_res->cmd_hi, 1890 login_res->cmd_lo, 1891 ntohs(login_res->recon_hold)); 1892 END_DEBUG 1893 sbp_busy_timeout(sdev); 1894 } else { 1895 /* forgot logout? */ 1896 aprint_error_dev(sc->sc_fd.dev, 1897 "%s:%s: login failed\n", 1898 __func__, sdev->bustgtlun); 1899 sdev->status = SBP_DEV_RESET; 1900 } 1901 break; 1902 } 1903 case ORB_FUN_RCN: 1904 login_res = sdev->login; 1905 if (status_valid) { 1906 SBP_DEBUG(0) 1907 printf("%s:%s:%s: reconnect:" 1908 " len %d, ID %d, cmd %08x%08x\n", 1909 device_xname(sc->sc_fd.dev), 1910 __func__, sdev->bustgtlun, 1911 login_res->len, login_res->id, 1912 login_res->cmd_hi, 1913 login_res->cmd_lo); 1914 END_DEBUG 1915 sbp_agent_reset(sdev); 1916 } else { 1917 /* reconnection hold time exceed? */ 1918 SBP_DEBUG(0) 1919 aprint_error_dev(sc->sc_fd.dev, 1920 "%s:%s: reconnect failed\n", 1921 __func__, sdev->bustgtlun); 1922 END_DEBUG 1923 sbp_login(sdev); 1924 } 1925 break; 1926 case ORB_FUN_LGO: 1927 sdev->status = SBP_DEV_RESET; 1928 break; 1929 case ORB_FUN_RST: 1930 sbp_busy_timeout(sdev); 1931 break; 1932 case ORB_FUN_LUR: 1933 case ORB_FUN_ATA: 1934 case ORB_FUN_ATS: 1935 sbp_agent_reset(sdev); 1936 break; 1937 default: 1938 aprint_error_dev(sc->sc_fd.dev, 1939 "%s:%s: unknown function %d\n", 1940 __func__, sdev->bustgtlun, orb_fun); 1941 break; 1942 } 1943 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 1944 break; 1945 case OCB_ACT_CMD: 1946 sdev->timeout = 0; 1947 if (ocb->xs != NULL) { 1948 struct scsipi_xfer *xs = ocb->xs; 1949 1950 if (sbp_status->len > 1) 1951 sbp_scsi_status(sbp_status, ocb); 1952 else 1953 if (sbp_status->resp != SBP_REQ_CMP) 1954 xs->error = XS_DRIVER_STUFFUP; 1955 else { 1956 xs->error = XS_NOERROR; 1957 xs->resid = 0; 1958 } 1959 /* fix up inq data */ 1960 if (xs->cmd->opcode == INQUIRY) 1961 sbp_fix_inq_data(ocb); 1962 scsipi_done(xs); 1963 } 1964 break; 1965 default: 1966 break; 1967 } 1968 } 1969 1970 if (!use_doorbell) 1971 sbp_free_ocb(sdev, ocb); 1972 done: 1973 if (reset_agent) 1974 sbp_agent_reset(sdev); 1975 1976 done0: 1977 xfer->recv.pay_len = SBP_RECV_LEN; 1978 /* The received packet is usually small enough to be stored within 1979 * the buffer. In that case, the controller return ack_complete and 1980 * no respose is necessary. 1981 * 1982 * XXX fwohci.c and firewire.c should inform event_code such as 1983 * ack_complete or ack_pending to upper driver. 1984 */ 1985 #if NEED_RESPONSE 1986 xfer->send.off = 0; 1987 sfp = (struct fw_pkt *)xfer->send.buf; 1988 sfp->mode.wres.dst = rfp->mode.wreqb.src; 1989 xfer->dst = sfp->mode.wres.dst; 1990 xfer->spd = min(sdev->target->fwdev->speed, max_speed); 1991 xfer->hand = sbp_loginres_callback; 1992 1993 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt; 1994 sfp->mode.wres.tcode = FWTCODE_WRES; 1995 sfp->mode.wres.rtcode = 0; 1996 sfp->mode.wres.pri = 0; 1997 1998 if (fw_asyreq(xfer->fc, -1, xfer) != 0) { 1999 aprint_error_dev(sc->sc_fd.dev, "mgm_orb failed\n"); 2000 mutex_enter(&sc->sc_fwb.fwb_mtx); 2001 STAILQ_INSERT_TAIL(&sc->sc_fwb.xferlist, xfer, link); 2002 mutex_exit(&sc->sc_fwb.fwb_mtx); 2003 } 2004 #else 2005 /* recycle */ 2006 mutex_enter(&sc->sc_fwb.fwb_mtx); 2007 STAILQ_INSERT_TAIL(&sc->sc_fwb.xferlist, xfer, link); 2008 mutex_exit(&sc->sc_fwb.fwb_mtx); 2009 #endif 2010 2011 return; 2012 2013 } 2014 2015 static int 2016 sbp_logout_all(struct sbp_softc *sbp) 2017 { 2018 struct sbp_target *target; 2019 struct sbp_dev *sdev; 2020 int i; 2021 2022 SBP_DEBUG(0) 2023 printf("sbp_logout_all\n"); 2024 END_DEBUG 2025 target = &sbp->sc_target; 2026 if (target->luns != NULL) 2027 for (i = 0; i < target->num_lun; i++) { 2028 sdev = target->luns[i]; 2029 if (sdev == NULL) 2030 continue; 2031 callout_stop(&sdev->login_callout); 2032 if (sdev->status >= SBP_DEV_TOATTACH && 2033 sdev->status <= SBP_DEV_ATTACHED) 2034 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL); 2035 } 2036 2037 return 0; 2038 } 2039 2040 static void 2041 sbp_free_sdev(struct sbp_dev *sdev) 2042 { 2043 struct sbp_softc *sc = sdev->target->sbp; 2044 int i; 2045 2046 if (sdev == NULL) 2047 return; 2048 for (i = 0; i < SBP_QUEUE_LEN; i++) 2049 bus_dmamap_destroy(sc->sc_dmat, sdev->ocb[i].dmamap); 2050 fwdma_free(sdev->dma.dma_tag, sdev->dma.dma_map, sdev->dma.v_addr); 2051 free(sdev, M_SBP); 2052 sdev = NULL; 2053 } 2054 2055 static void 2056 sbp_free_target(struct sbp_target *target) 2057 { 2058 struct fw_xfer *xfer, *next; 2059 int i; 2060 2061 if (target->luns == NULL) 2062 return; 2063 callout_stop(&target->mgm_ocb_timeout); 2064 for (i = 0; i < target->num_lun; i++) 2065 sbp_free_sdev(target->luns[i]); 2066 2067 for (xfer = STAILQ_FIRST(&target->xferlist); 2068 xfer != NULL; xfer = next) { 2069 next = STAILQ_NEXT(xfer, link); 2070 fw_xfer_free_buf(xfer); 2071 } 2072 STAILQ_INIT(&target->xferlist); 2073 free(target->luns, M_SBP); 2074 target->num_lun = 0; 2075 target->luns = NULL; 2076 target->fwdev = NULL; 2077 } 2078 2079 static void 2080 sbp_scsipi_detach_sdev(struct sbp_dev *sdev) 2081 { 2082 struct sbp_target *target; 2083 struct sbp_softc *sbp; 2084 2085 if (sdev == NULL) 2086 return; 2087 2088 target = sdev->target; 2089 if (target == NULL) 2090 return; 2091 2092 sbp = target->sbp; 2093 2094 if (sdev->status == SBP_DEV_DEAD) 2095 return; 2096 if (sdev->status == SBP_DEV_RESET) 2097 return; 2098 if (sdev->periph != NULL) { 2099 scsipi_periph_thaw(sdev->periph, sdev->freeze); 2100 scsipi_channel_thaw(&sbp->sc_channel, 0); /* XXXX */ 2101 sdev->freeze = 0; 2102 if (scsipi_target_detach(&sbp->sc_channel, 2103 target->target_id, sdev->lun_id, DETACH_FORCE) != 0) { 2104 aprint_error_dev(sbp->sc_fd.dev, "detach failed\n"); 2105 } 2106 sdev->periph = NULL; 2107 } 2108 sbp_abort_all_ocbs(sdev, XS_DRIVER_STUFFUP); 2109 } 2110 2111 static void 2112 sbp_scsipi_detach_target(struct sbp_target *target) 2113 { 2114 struct sbp_softc *sbp = target->sbp; 2115 int i; 2116 2117 if (target->luns != NULL) { 2118 SBP_DEBUG(0) 2119 printf("sbp_detach_target %d\n", target->target_id); 2120 END_DEBUG 2121 for (i = 0; i < target->num_lun; i++) 2122 sbp_scsipi_detach_sdev(target->luns[i]); 2123 if (config_detach(sbp->sc_bus, DETACH_FORCE) != 0) 2124 aprint_error_dev(sbp->sc_fd.dev, "%d detach failed\n", 2125 target->target_id); 2126 sbp->sc_bus = NULL; 2127 } 2128 } 2129 2130 static void 2131 sbp_target_reset(struct sbp_dev *sdev, int method) 2132 { 2133 struct sbp_softc *sc; 2134 struct sbp_target *target = sdev->target; 2135 struct sbp_dev *tsdev; 2136 int i; 2137 2138 sc = target->sbp; 2139 for (i = 0; i < target->num_lun; i++) { 2140 tsdev = target->luns[i]; 2141 if (tsdev == NULL) 2142 continue; 2143 if (tsdev->status == SBP_DEV_DEAD) 2144 continue; 2145 if (tsdev->status == SBP_DEV_RESET) 2146 continue; 2147 if (sdev->periph != NULL) { 2148 scsipi_periph_freeze(tsdev->periph, 1); 2149 tsdev->freeze++; 2150 } 2151 sbp_abort_all_ocbs(tsdev, XS_TIMEOUT); 2152 if (method == 2) 2153 tsdev->status = SBP_DEV_LOGIN; 2154 } 2155 switch (method) { 2156 case 1: 2157 aprint_error("target reset\n"); 2158 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL); 2159 break; 2160 case 2: 2161 aprint_error("reset start\n"); 2162 sbp_reset_start(sdev); 2163 break; 2164 } 2165 } 2166 2167 static void 2168 sbp_mgm_timeout(void *arg) 2169 { 2170 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2171 struct sbp_dev *sdev = ocb->sdev; 2172 struct sbp_target *target = sdev->target; 2173 2174 aprint_error_dev(sdev->target->sbp->sc_fd.dev, 2175 "%s:%s: request timeout(mgm orb:0x%08x) ... ", 2176 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2177 target->mgm_ocb_cur = NULL; 2178 sbp_free_ocb(sdev, ocb); 2179 #if 0 2180 /* XXX */ 2181 aprint_error("run next request\n"); 2182 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 2183 #endif 2184 aprint_error_dev(sdev->target->sbp->sc_fd.dev, 2185 "%s:%s: reset start\n", __func__, sdev->bustgtlun); 2186 sbp_reset_start(sdev); 2187 } 2188 2189 static void 2190 sbp_timeout(void *arg) 2191 { 2192 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2193 struct sbp_dev *sdev = ocb->sdev; 2194 2195 aprint_error_dev(sdev->target->sbp->sc_fd.dev, 2196 "%s:%s: request timeout(cmd orb:0x%08x) ... ", 2197 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2198 2199 sdev->timeout++; 2200 switch (sdev->timeout) { 2201 case 1: 2202 aprint_error("agent reset\n"); 2203 if (sdev->periph != NULL) { 2204 scsipi_periph_freeze(sdev->periph, 1); 2205 sdev->freeze++; 2206 } 2207 sbp_abort_all_ocbs(sdev, XS_TIMEOUT); 2208 sbp_agent_reset(sdev); 2209 break; 2210 case 2: 2211 case 3: 2212 sbp_target_reset(sdev, sdev->timeout - 1); 2213 break; 2214 default: 2215 aprint_error("\n"); 2216 #if 0 2217 /* XXX give up */ 2218 sbp_scsipi_detach_target(target); 2219 if (target->luns != NULL) 2220 free(target->luns, M_SBP); 2221 target->num_lun = 0; 2222 target->luns = NULL; 2223 target->fwdev = NULL; 2224 #endif 2225 } 2226 } 2227 2228 static void 2229 sbp_action1(struct sbp_softc *sc, struct scsipi_xfer *xs) 2230 { 2231 struct sbp_target *target = &sc->sc_target; 2232 struct sbp_dev *sdev = NULL; 2233 struct sbp_ocb *ocb; 2234 int speed, flag, error; 2235 void *cdb; 2236 2237 /* target:lun -> sdev mapping */ 2238 if (target->fwdev != NULL && 2239 xs->xs_periph->periph_lun < target->num_lun) { 2240 sdev = target->luns[xs->xs_periph->periph_lun]; 2241 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED && 2242 sdev->status != SBP_DEV_PROBE) 2243 sdev = NULL; 2244 } 2245 2246 if (sdev == NULL) { 2247 SBP_DEBUG(1) 2248 printf("%s:%d:%d: Invalid target (target needed)\n", 2249 sc ? device_xname(sc->sc_fd.dev) : "???", 2250 xs->xs_periph->periph_target, 2251 xs->xs_periph->periph_lun); 2252 END_DEBUG 2253 2254 xs->error = XS_DRIVER_STUFFUP; 2255 scsipi_done(xs); 2256 return; 2257 } 2258 2259 SBP_DEBUG(2) 2260 printf("%s:%d:%d:" 2261 " cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x," 2262 " flags: 0x%02x, %db cmd/%db data\n", 2263 device_xname(sc->sc_fd.dev), 2264 xs->xs_periph->periph_target, 2265 xs->xs_periph->periph_lun, 2266 xs->cmd->opcode, 2267 xs->cmd->bytes[0], xs->cmd->bytes[1], 2268 xs->cmd->bytes[2], xs->cmd->bytes[3], 2269 xs->cmd->bytes[4], xs->cmd->bytes[5], 2270 xs->cmd->bytes[6], xs->cmd->bytes[7], 2271 xs->cmd->bytes[8], 2272 xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT), 2273 xs->cmdlen, xs->datalen); 2274 END_DEBUG 2275 mutex_enter(&sc->sc_mtx); 2276 ocb = sbp_get_ocb(sdev); 2277 mutex_exit(&sc->sc_mtx); 2278 if (ocb == NULL) { 2279 xs->error = XS_REQUEUE; 2280 if (sdev->freeze == 0) { 2281 scsipi_periph_freeze(sdev->periph, 1); 2282 sdev->freeze++; 2283 } 2284 scsipi_done(xs); 2285 return; 2286 } 2287 2288 ocb->flags = OCB_ACT_CMD; 2289 ocb->sdev = sdev; 2290 ocb->xs = xs; 2291 ocb->orb[0] = htonl(1 << 31); 2292 ocb->orb[1] = 0; 2293 ocb->orb[2] = htonl(((sc->sc_fd.fc->nodeid | FWLOCALBUS) << 16)); 2294 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET); 2295 speed = min(target->fwdev->speed, max_speed); 2296 ocb->orb[4] = 2297 htonl(ORB_NOTIFY | ORB_CMD_SPD(speed) | ORB_CMD_MAXP(speed + 7)); 2298 if ((xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT)) == 2299 XS_CTL_DATA_IN) { 2300 ocb->orb[4] |= htonl(ORB_CMD_IN); 2301 flag = BUS_DMA_READ; 2302 } else 2303 flag = BUS_DMA_WRITE; 2304 2305 cdb = xs->cmd; 2306 memcpy((void *)&ocb->orb[5], cdb, xs->cmdlen); 2307 /* 2308 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3])); 2309 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7])); 2310 */ 2311 if (xs->datalen > 0) { 2312 error = bus_dmamap_load(sc->sc_dmat, ocb->dmamap, 2313 xs->data, xs->datalen, NULL, BUS_DMA_NOWAIT | flag); 2314 if (error) { 2315 aprint_error_dev(sc->sc_fd.dev, 2316 "DMA map load error %d\n", error); 2317 xs->error = XS_DRIVER_STUFFUP; 2318 scsipi_done(xs); 2319 } else 2320 sbp_execute_ocb(ocb, ocb->dmamap->dm_segs, 2321 ocb->dmamap->dm_nsegs); 2322 } else 2323 sbp_execute_ocb(ocb, NULL, 0); 2324 2325 return; 2326 } 2327 2328 static void 2329 sbp_execute_ocb(struct sbp_ocb *ocb, bus_dma_segment_t *segments, int seg) 2330 { 2331 struct sbp_ocb *prev; 2332 bus_dma_segment_t *s; 2333 int i; 2334 2335 SBP_DEBUG(2) 2336 printf("sbp_execute_ocb: seg %d", seg); 2337 for (i = 0; i < seg; i++) 2338 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr, 2339 (uintmax_t)segments[i].ds_len); 2340 printf("\n"); 2341 END_DEBUG 2342 2343 if (seg == 1) { 2344 /* direct pointer */ 2345 s = segments; 2346 if (s->ds_len > SBP_SEG_MAX) 2347 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2348 ocb->orb[3] = htonl(s->ds_addr); 2349 ocb->orb[4] |= htonl(s->ds_len); 2350 } else if (seg > 1) { 2351 /* page table */ 2352 for (i = 0; i < seg; i++) { 2353 s = &segments[i]; 2354 SBP_DEBUG(0) 2355 /* XXX LSI Logic "< 16 byte" bug might be hit */ 2356 if (s->ds_len < 16) 2357 printf("sbp_execute_ocb: warning, " 2358 "segment length(%jd) is less than 16." 2359 "(seg=%d/%d)\n", 2360 (uintmax_t)s->ds_len, i + 1, seg); 2361 END_DEBUG 2362 if (s->ds_len > SBP_SEG_MAX) 2363 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2364 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16); 2365 ocb->ind_ptr[i].lo = htonl(s->ds_addr); 2366 } 2367 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg); 2368 } 2369 2370 if (seg > 0) { 2371 struct sbp_softc *sc = ocb->sdev->target->sbp; 2372 const int flag = (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2373 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE; 2374 2375 bus_dmamap_sync(sc->sc_dmat, ocb->dmamap, 2376 0, ocb->dmamap->dm_mapsize, flag); 2377 } 2378 prev = sbp_enqueue_ocb(ocb->sdev, ocb); 2379 SBP_ORB_DMA_SYNC(ocb->sdev->dma, ocb->index, BUS_DMASYNC_PREWRITE); 2380 if (use_doorbell) { 2381 if (prev == NULL) { 2382 if (ocb->sdev->last_ocb != NULL) 2383 sbp_doorbell(ocb->sdev); 2384 else 2385 sbp_orb_pointer(ocb->sdev, ocb); 2386 } 2387 } else 2388 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) { 2389 ocb->sdev->flags &= ~ORB_LINK_DEAD; 2390 sbp_orb_pointer(ocb->sdev, ocb); 2391 } 2392 } 2393 2394 static struct sbp_ocb * 2395 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status) 2396 { 2397 struct sbp_softc *sc = sdev->target->sbp; 2398 struct sbp_ocb *ocb; 2399 struct sbp_ocb *next; 2400 int order = 0; 2401 int flags; 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 flags = ocb->flags; 2412 if (OCB_MATCH(ocb, sbp_status)) { 2413 /* found */ 2414 SBP_ORB_DMA_SYNC(sdev->dma, ocb->index, 2415 BUS_DMASYNC_POSTWRITE); 2416 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb); 2417 if (ocb->xs != NULL) 2418 callout_stop(&ocb->xs->xs_callout); 2419 if (ntohl(ocb->orb[4]) & 0xffff) { 2420 const int flag = 2421 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2422 BUS_DMASYNC_POSTREAD : 2423 BUS_DMASYNC_POSTWRITE; 2424 2425 bus_dmamap_sync(sc->sc_dmat, ocb->dmamap, 2426 0, ocb->dmamap->dm_mapsize, flag); 2427 bus_dmamap_unload(sc->sc_dmat, ocb->dmamap); 2428 2429 } 2430 if (!use_doorbell) { 2431 if (sbp_status->src == SRC_NO_NEXT) { 2432 if (next != NULL) 2433 sbp_orb_pointer(sdev, next); 2434 else if (order > 0) 2435 /* 2436 * Unordered execution 2437 * We need to send pointer for 2438 * next ORB 2439 */ 2440 sdev->flags |= ORB_LINK_DEAD; 2441 } 2442 } 2443 break; 2444 } else 2445 order++; 2446 } 2447 mutex_exit(&sc->sc_mtx); 2448 2449 if (ocb && use_doorbell) { 2450 /* 2451 * XXX this is not correct for unordered 2452 * execution. 2453 */ 2454 if (sdev->last_ocb != NULL) 2455 sbp_free_ocb(sdev, sdev->last_ocb); 2456 sdev->last_ocb = ocb; 2457 if (next != NULL && 2458 sbp_status->src == SRC_NO_NEXT) 2459 sbp_doorbell(sdev); 2460 } 2461 2462 SBP_DEBUG(0) 2463 if (ocb && order > 0) 2464 printf("%s:%s:%s: unordered execution order:%d\n", 2465 device_xname(sc->sc_fd.dev), __func__, sdev->bustgtlun, 2466 order); 2467 END_DEBUG 2468 return ocb; 2469 } 2470 2471 static struct sbp_ocb * 2472 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2473 { 2474 struct sbp_softc *sc = sdev->target->sbp; 2475 struct sbp_ocb *tocb, *prev, *prev2; 2476 2477 SBP_DEBUG(1) 2478 printf("%s:%s:%s: 0x%08jx\n", device_xname(sc->sc_fd.dev), 2479 __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2480 END_DEBUG 2481 mutex_enter(&sc->sc_mtx); 2482 prev = NULL; 2483 STAILQ_FOREACH(tocb, &sdev->ocbs, ocb) 2484 prev = tocb; 2485 prev2 = prev; 2486 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb); 2487 mutex_exit(&sc->sc_mtx); 2488 2489 callout_reset(&ocb->xs->xs_callout, mstohz(ocb->xs->timeout), 2490 sbp_timeout, ocb); 2491 2492 if (use_doorbell && prev == NULL) 2493 prev2 = sdev->last_ocb; 2494 2495 if (prev2 != NULL) { 2496 SBP_DEBUG(2) 2497 printf("linking chain 0x%jx -> 0x%jx\n", 2498 (uintmax_t)prev2->bus_addr, (uintmax_t)ocb->bus_addr); 2499 END_DEBUG 2500 /* 2501 * Suppress compiler optimization so that orb[1] must be 2502 * written first. 2503 * XXX We may need an explicit memory barrier for other 2504 * architectures other than i386/amd64. 2505 */ 2506 *(volatile uint32_t *)&prev2->orb[1] = htonl(ocb->bus_addr); 2507 *(volatile uint32_t *)&prev2->orb[0] = 0; 2508 } 2509 2510 return prev; 2511 } 2512 2513 static struct sbp_ocb * 2514 sbp_get_ocb(struct sbp_dev *sdev) 2515 { 2516 struct sbp_softc *sc = sdev->target->sbp; 2517 struct sbp_ocb *ocb; 2518 2519 KASSERT(mutex_owned(&sc->sc_mtx)); 2520 2521 ocb = STAILQ_FIRST(&sdev->free_ocbs); 2522 if (ocb == NULL) { 2523 sdev->flags |= ORB_SHORTAGE; 2524 aprint_error_dev(sc->sc_fd.dev, 2525 "ocb shortage!!!\n"); 2526 return NULL; 2527 } 2528 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb); 2529 ocb->xs = NULL; 2530 return ocb; 2531 } 2532 2533 static void 2534 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2535 { 2536 struct sbp_softc *sc = sdev->target->sbp; 2537 int count; 2538 2539 ocb->flags = 0; 2540 ocb->xs = NULL; 2541 2542 mutex_enter(&sc->sc_mtx); 2543 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb); 2544 mutex_exit(&sc->sc_mtx); 2545 if (sdev->flags & ORB_SHORTAGE) { 2546 sdev->flags &= ~ORB_SHORTAGE; 2547 count = sdev->freeze; 2548 sdev->freeze = 0; 2549 if (sdev->periph) 2550 scsipi_periph_thaw(sdev->periph, count); 2551 scsipi_channel_thaw(&sc->sc_channel, 0); 2552 } 2553 } 2554 2555 static void 2556 sbp_abort_ocb(struct sbp_ocb *ocb, int status) 2557 { 2558 struct sbp_softc *sc; 2559 struct sbp_dev *sdev; 2560 2561 sdev = ocb->sdev; 2562 sc = sdev->target->sbp; 2563 SBP_DEBUG(0) 2564 printf("%s:%s:%s: sbp_abort_ocb 0x%jx\n", device_xname(sc->sc_fd.dev), 2565 __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2566 END_DEBUG 2567 SBP_DEBUG(1) 2568 if (ocb->xs != NULL) 2569 sbp_print_scsi_cmd(ocb); 2570 END_DEBUG 2571 if (ntohl(ocb->orb[4]) & 0xffff) { 2572 const int flag = (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2573 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE; 2574 2575 bus_dmamap_sync(sc->sc_dmat, ocb->dmamap, 2576 0, ocb->dmamap->dm_mapsize, flag); 2577 bus_dmamap_unload(sc->sc_dmat, ocb->dmamap); 2578 } 2579 if (ocb->xs != NULL) { 2580 callout_stop(&ocb->xs->xs_callout); 2581 ocb->xs->error = status; 2582 scsipi_done(ocb->xs); 2583 } 2584 sbp_free_ocb(sdev, ocb); 2585 } 2586 2587 static void 2588 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status) 2589 { 2590 struct sbp_softc *sc = sdev->target->sbp; 2591 struct sbp_ocb *ocb, *next; 2592 STAILQ_HEAD(, sbp_ocb) temp; 2593 2594 mutex_enter(&sc->sc_mtx); 2595 STAILQ_INIT(&temp); 2596 STAILQ_CONCAT(&temp, &sdev->ocbs); 2597 STAILQ_INIT(&sdev->ocbs); 2598 mutex_exit(&sc->sc_mtx); 2599 2600 for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) { 2601 next = STAILQ_NEXT(ocb, ocb); 2602 sbp_abort_ocb(ocb, status); 2603 } 2604 if (sdev->last_ocb != NULL) { 2605 sbp_free_ocb(sdev, sdev->last_ocb); 2606 sdev->last_ocb = NULL; 2607 } 2608 } 2609
Indexes created Thu Sep 25 16:09:42 GMT 2025