ciss.c revision 1.11
1 /* $NetBSD: ciss.c,v 1.11 2008/04/08 12:07:25 cegger Exp $ */ 2 /* $OpenBSD: ciss.c,v 1.14 2006/03/13 16:02:23 mickey Exp $ */ 3 4 /* 5 * Copyright (c) 2005 Michael Shalayeff 6 * All rights reserved. 7 * 8 * Permission to use, copy, modify, and distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN 17 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT 18 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21 #include <sys/cdefs.h> 22 __KERNEL_RCSID(0, "$NetBSD: ciss.c,v 1.11 2008/04/08 12:07:25 cegger Exp $"); 23 24 /* #define CISS_DEBUG */ 25 26 #include <sys/param.h> 27 #include <sys/systm.h> 28 #include <sys/buf.h> 29 #include <sys/ioctl.h> 30 #include <sys/device.h> 31 #include <sys/kernel.h> 32 #include <sys/malloc.h> 33 #include <sys/proc.h> 34 #include <sys/kthread.h> 35 36 #include <uvm/uvm_extern.h> 37 38 #include <sys/bus.h> 39 40 #include <dev/scsipi/scsi_all.h> 41 #include <dev/scsipi/scsi_disk.h> 42 #include <dev/scsipi/scsiconf.h> 43 44 #include <dev/ic/cissreg.h> 45 #include <dev/ic/cissvar.h> 46 47 #ifdef CISS_DEBUG 48 #define CISS_DPRINTF(m,a) if (ciss_debug & (m)) printf a 49 #define CISS_D_CMD 0x0001 50 #define CISS_D_INTR 0x0002 51 #define CISS_D_MISC 0x0004 52 #define CISS_D_DMA 0x0008 53 #define CISS_D_IOCTL 0x0010 54 #define CISS_D_ERR 0x0020 55 int ciss_debug = 0 56 | CISS_D_CMD 57 | CISS_D_INTR 58 | CISS_D_MISC 59 | CISS_D_DMA 60 | CISS_D_IOCTL 61 | CISS_D_ERR 62 ; 63 #else 64 #define CISS_DPRINTF(m,a) /* m, a */ 65 #endif 66 67 static void ciss_scsi_cmd(struct scsipi_channel *chan, 68 scsipi_adapter_req_t req, void *arg); 69 static int ciss_scsi_ioctl(struct scsipi_channel *chan, u_long cmd, 70 void *addr, int flag, struct proc *p); 71 static void cissminphys(struct buf *bp); 72 73 #if 0 74 static void ciss_scsi_raw_cmd(struct scsipi_channel *chan, 75 scsipi_adapter_req_t req, void *arg); 76 #endif 77 78 #if NBIO > 0 79 static int ciss_ioctl(struct device *, u_long, void *); 80 #endif 81 static int ciss_sync(struct ciss_softc *sc); 82 static void ciss_heartbeat(void *v); 83 static void ciss_shutdown(void *v); 84 #if 0 85 static void ciss_kthread(void *v); 86 #endif 87 88 static struct ciss_ccb *ciss_get_ccb(struct ciss_softc *sc); 89 static void ciss_put_ccb(struct ciss_ccb *ccb); 90 static int ciss_cmd(struct ciss_ccb *ccb, int flags, int wait); 91 static int ciss_done(struct ciss_ccb *ccb); 92 static int ciss_error(struct ciss_ccb *ccb); 93 static int ciss_inq(struct ciss_softc *sc, struct ciss_inquiry *inq); 94 static int ciss_ldmap(struct ciss_softc *sc); 95 96 static struct ciss_ccb * 97 ciss_get_ccb(struct ciss_softc *sc) 98 { 99 struct ciss_ccb *ccb; 100 101 if ((ccb = TAILQ_LAST(&sc->sc_free_ccb, ciss_queue_head))) { 102 TAILQ_REMOVE(&sc->sc_free_ccb, ccb, ccb_link); 103 ccb->ccb_state = CISS_CCB_READY; 104 } 105 return ccb; 106 } 107 108 static void 109 ciss_put_ccb(struct ciss_ccb *ccb) 110 { 111 struct ciss_softc *sc = ccb->ccb_sc; 112 113 ccb->ccb_state = CISS_CCB_FREE; 114 TAILQ_INSERT_TAIL(&sc->sc_free_ccb, ccb, ccb_link); 115 } 116 117 int 118 ciss_attach(struct ciss_softc *sc) 119 { 120 struct ciss_ccb *ccb; 121 struct ciss_cmd *cmd; 122 struct ciss_inquiry *inq; 123 bus_dma_segment_t seg[1]; 124 int error, i, total, rseg, maxfer; 125 ciss_lock_t lock; 126 paddr_t pa; 127 128 bus_space_read_region_4(sc->sc_iot, sc->cfg_ioh, sc->cfgoff, 129 (u_int32_t *)&sc->cfg, sizeof(sc->cfg) / 4); 130 131 if (sc->cfg.signature != CISS_SIGNATURE) { 132 printf(": bad sign 0x%08x\n", sc->cfg.signature); 133 return -1; 134 } 135 136 if (!(sc->cfg.methods & CISS_METH_SIMPL)) { 137 printf(": not simple 0x%08x\n", sc->cfg.methods); 138 return -1; 139 } 140 141 sc->cfg.rmethod = CISS_METH_SIMPL; 142 sc->cfg.paddr_lim = 0; /* 32bit addrs */ 143 sc->cfg.int_delay = 0; /* disable coalescing */ 144 sc->cfg.int_count = 0; 145 strlcpy(sc->cfg.hostname, "HUMPPA", sizeof(sc->cfg.hostname)); 146 sc->cfg.driverf |= CISS_DRV_PRF; /* enable prefetch */ 147 if (!sc->cfg.maxsg) 148 sc->cfg.maxsg = MAXPHYS / PAGE_SIZE + 1; 149 150 bus_space_write_region_4(sc->sc_iot, sc->cfg_ioh, sc->cfgoff, 151 (u_int32_t *)&sc->cfg, sizeof(sc->cfg) / 4); 152 bus_space_barrier(sc->sc_iot, sc->cfg_ioh, sc->cfgoff, sizeof(sc->cfg), 153 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE); 154 155 bus_space_write_4(sc->sc_iot, sc->sc_ioh, CISS_IDB, CISS_IDB_CFG); 156 bus_space_barrier(sc->sc_iot, sc->sc_ioh, CISS_IDB, 4, 157 BUS_SPACE_BARRIER_WRITE); 158 for (i = 1000; i--; DELAY(1000)) { 159 /* XXX maybe IDB is really 64bit? - hp dl380 needs this */ 160 (void)bus_space_read_4(sc->sc_iot, sc->sc_ioh, CISS_IDB + 4); 161 if (!(bus_space_read_4(sc->sc_iot, sc->sc_ioh, CISS_IDB) & CISS_IDB_CFG)) 162 break; 163 bus_space_barrier(sc->sc_iot, sc->sc_ioh, CISS_IDB, 4, 164 BUS_SPACE_BARRIER_READ); 165 } 166 167 if (bus_space_read_4(sc->sc_iot, sc->sc_ioh, CISS_IDB) & CISS_IDB_CFG) { 168 printf(": cannot set config\n"); 169 return -1; 170 } 171 172 bus_space_read_region_4(sc->sc_iot, sc->cfg_ioh, sc->cfgoff, 173 (u_int32_t *)&sc->cfg, sizeof(sc->cfg) / 4); 174 175 if (!(sc->cfg.amethod & CISS_METH_SIMPL)) { 176 printf(": cannot simplify 0x%08x\n", sc->cfg.amethod); 177 return -1; 178 } 179 180 /* i'm ready for you and i hope you're ready for me */ 181 for (i = 30000; i--; DELAY(1000)) { 182 if (bus_space_read_4(sc->sc_iot, sc->cfg_ioh, sc->cfgoff + 183 offsetof(struct ciss_config, amethod)) & CISS_METH_READY) 184 break; 185 bus_space_barrier(sc->sc_iot, sc->cfg_ioh, sc->cfgoff + 186 offsetof(struct ciss_config, amethod), 4, 187 BUS_SPACE_BARRIER_READ); 188 } 189 190 if (!(bus_space_read_4(sc->sc_iot, sc->cfg_ioh, sc->cfgoff + 191 offsetof(struct ciss_config, amethod)) & CISS_METH_READY)) { 192 printf(": she never came ready for me 0x%08x\n", 193 sc->cfg.amethod); 194 return -1; 195 } 196 197 sc->maxcmd = sc->cfg.maxcmd; 198 sc->maxsg = sc->cfg.maxsg; 199 if (sc->maxsg > MAXPHYS / PAGE_SIZE + 1) 200 sc->maxsg = MAXPHYS / PAGE_SIZE + 1; 201 i = sizeof(struct ciss_ccb) + 202 sizeof(ccb->ccb_cmd.sgl[0]) * (sc->maxsg - 1); 203 for (sc->ccblen = 0x10; sc->ccblen < i; sc->ccblen <<= 1); 204 205 total = sc->ccblen * sc->maxcmd; 206 if ((error = bus_dmamem_alloc(sc->sc_dmat, total, PAGE_SIZE, 0, 207 sc->cmdseg, 1, &rseg, BUS_DMA_NOWAIT))) { 208 printf(": cannot allocate CCBs (%d)\n", error); 209 return -1; 210 } 211 212 if ((error = bus_dmamem_map(sc->sc_dmat, sc->cmdseg, rseg, total, 213 (void **)&sc->ccbs, BUS_DMA_NOWAIT))) { 214 printf(": cannot map CCBs (%d)\n", error); 215 return -1; 216 } 217 bzero(sc->ccbs, total); 218 219 if ((error = bus_dmamap_create(sc->sc_dmat, total, 1, 220 total, 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &sc->cmdmap))) { 221 printf(": cannot create CCBs dmamap (%d)\n", error); 222 bus_dmamem_free(sc->sc_dmat, sc->cmdseg, 1); 223 return -1; 224 } 225 226 if ((error = bus_dmamap_load(sc->sc_dmat, sc->cmdmap, sc->ccbs, total, 227 NULL, BUS_DMA_NOWAIT))) { 228 printf(": cannot load CCBs dmamap (%d)\n", error); 229 bus_dmamem_free(sc->sc_dmat, sc->cmdseg, 1); 230 bus_dmamap_destroy(sc->sc_dmat, sc->cmdmap); 231 return -1; 232 } 233 234 TAILQ_INIT(&sc->sc_ccbq); 235 TAILQ_INIT(&sc->sc_ccbdone); 236 TAILQ_INIT(&sc->sc_free_ccb); 237 238 maxfer = sc->maxsg * PAGE_SIZE; 239 for (i = 0; total > 0 && i < sc->maxcmd; i++, total -= sc->ccblen) { 240 ccb = (struct ciss_ccb *) ((char *)sc->ccbs + i * sc->ccblen); 241 cmd = &ccb->ccb_cmd; 242 pa = sc->cmdseg[0].ds_addr + i * sc->ccblen; 243 244 ccb->ccb_sc = sc; 245 ccb->ccb_cmdpa = pa + offsetof(struct ciss_ccb, ccb_cmd); 246 ccb->ccb_state = CISS_CCB_FREE; 247 248 cmd->id = htole32(i << 2); 249 cmd->id_hi = htole32(0); 250 cmd->sgin = sc->maxsg; 251 cmd->sglen = htole16((u_int16_t)cmd->sgin); 252 cmd->err_len = htole32(sizeof(ccb->ccb_err)); 253 pa += offsetof(struct ciss_ccb, ccb_err); 254 cmd->err_pa = htole64((u_int64_t)pa); 255 256 if ((error = bus_dmamap_create(sc->sc_dmat, maxfer, sc->maxsg, 257 maxfer, 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, 258 &ccb->ccb_dmamap))) 259 break; 260 261 TAILQ_INSERT_TAIL(&sc->sc_free_ccb, ccb, ccb_link); 262 } 263 264 if (i < sc->maxcmd) { 265 printf(": cannot create ccb#%d dmamap (%d)\n", i, error); 266 if (i == 0) { 267 /* TODO leaking cmd's dmamaps and shitz */ 268 bus_dmamem_free(sc->sc_dmat, sc->cmdseg, 1); 269 bus_dmamap_destroy(sc->sc_dmat, sc->cmdmap); 270 return -1; 271 } 272 } 273 274 if ((error = bus_dmamem_alloc(sc->sc_dmat, PAGE_SIZE, PAGE_SIZE, 0, 275 seg, 1, &rseg, BUS_DMA_NOWAIT))) { 276 printf(": cannot allocate scratch buffer (%d)\n", error); 277 return -1; 278 } 279 280 if ((error = bus_dmamem_map(sc->sc_dmat, seg, rseg, PAGE_SIZE, 281 (void **)&sc->scratch, BUS_DMA_NOWAIT))) { 282 printf(": cannot map scratch buffer (%d)\n", error); 283 return -1; 284 } 285 bzero(sc->scratch, PAGE_SIZE); 286 287 lock = CISS_LOCK_SCRATCH(sc); 288 inq = sc->scratch; 289 if (ciss_inq(sc, inq)) { 290 printf(": adapter inquiry failed\n"); 291 CISS_UNLOCK_SCRATCH(sc, lock); 292 bus_dmamem_free(sc->sc_dmat, sc->cmdseg, 1); 293 bus_dmamap_destroy(sc->sc_dmat, sc->cmdmap); 294 return -1; 295 } 296 297 if (!(inq->flags & CISS_INQ_BIGMAP)) { 298 printf(": big map is not supported, flags=0x%x\n", 299 inq->flags); 300 CISS_UNLOCK_SCRATCH(sc, lock); 301 bus_dmamem_free(sc->sc_dmat, sc->cmdseg, 1); 302 bus_dmamap_destroy(sc->sc_dmat, sc->cmdmap); 303 return -1; 304 } 305 306 sc->maxunits = inq->numld; 307 sc->nbus = inq->nscsi_bus; 308 sc->ndrives = inq->buswidth; 309 printf(": %d LD%s, HW rev %d, FW %4.4s/%4.4s\n", 310 inq->numld, inq->numld == 1? "" : "s", 311 inq->hw_rev, inq->fw_running, inq->fw_stored); 312 313 CISS_UNLOCK_SCRATCH(sc, lock); 314 315 callout_init(&sc->sc_hb, 0); 316 callout_setfunc(&sc->sc_hb, ciss_heartbeat, sc); 317 callout_schedule(&sc->sc_hb, hz * 3); 318 319 /* map LDs */ 320 if (ciss_ldmap(sc)) { 321 aprint_error_dev(&sc->sc_dev, "adapter LD map failed\n"); 322 bus_dmamem_free(sc->sc_dmat, sc->cmdseg, 1); 323 bus_dmamap_destroy(sc->sc_dmat, sc->cmdmap); 324 return -1; 325 } 326 327 /* TODO scan all physdev */ 328 /* TODO scan all logdev */ 329 330 sc->sc_flush = CISS_FLUSH_ENABLE; 331 if (!(sc->sc_sh = shutdownhook_establish(ciss_shutdown, sc))) { 332 printf(": unable to establish shutdown hook\n"); 333 bus_dmamem_free(sc->sc_dmat, sc->cmdseg, 1); 334 bus_dmamap_destroy(sc->sc_dmat, sc->cmdmap); 335 return -1; 336 } 337 338 #if 0 339 if (kthread_create(ciss_kthread, sc, NULL, "%s", device_xname(&sc->sc_dev))) { 340 printf(": unable to create kernel thread\n"); 341 shutdownhook_disestablish(sc->sc_sh); 342 bus_dmamem_free(sc->sc_dmat, sc->cmdseg, 1); 343 bus_dmamap_destroy(sc->sc_dmat, sc->cmdmap); 344 return -1; 345 } 346 #endif 347 348 sc->sc_channel.chan_adapter = &sc->sc_adapter; 349 sc->sc_channel.chan_bustype = &scsi_bustype; 350 sc->sc_channel.chan_channel = 0; 351 sc->sc_channel.chan_ntargets = sc->maxunits; 352 sc->sc_channel.chan_nluns = 8; 353 sc->sc_channel.chan_openings = sc->maxcmd / (sc->maxunits? sc->maxunits : 1); 354 sc->sc_channel.chan_flags = 0; 355 sc->sc_channel.chan_id = sc->maxunits; 356 357 sc->sc_adapter.adapt_dev = (struct device *) sc; 358 sc->sc_adapter.adapt_openings = sc->maxcmd / (sc->maxunits? sc->maxunits : 1); 359 sc->sc_adapter.adapt_max_periph = sc->maxunits; 360 sc->sc_adapter.adapt_request = ciss_scsi_cmd; 361 sc->sc_adapter.adapt_minphys = cissminphys; 362 sc->sc_adapter.adapt_ioctl = ciss_scsi_ioctl; 363 sc->sc_adapter.adapt_nchannels = 1; 364 config_found(&sc->sc_dev, &sc->sc_channel, scsiprint); 365 366 #if 0 367 sc->sc_link_raw.adapter_softc = sc; 368 sc->sc_link.openings = sc->maxcmd / (sc->maxunits? sc->maxunits : 1); 369 sc->sc_link_raw.adapter = &ciss_raw_switch; 370 sc->sc_link_raw.adapter_target = sc->ndrives; 371 sc->sc_link_raw.adapter_buswidth = sc->ndrives; 372 config_found(&sc->sc_dev, &sc->sc_channel, scsiprint); 373 #endif 374 375 #if NBIO1 > 0 376 if (bio_register(&sc->sc_dev, ciss_ioctl) != 0) 377 aprint_error_dev(&sc->sc_dev, "controller registration failed"); 378 #endif 379 380 return 0; 381 } 382 383 static void 384 ciss_shutdown(void *v) 385 { 386 struct ciss_softc *sc = v; 387 388 sc->sc_flush = CISS_FLUSH_DISABLE; 389 /* timeout_del(&sc->sc_hb); */ 390 ciss_sync(sc); 391 } 392 393 static void 394 cissminphys(struct buf *bp) 395 { 396 #if 0 /* TOSO */ 397 #define CISS_MAXFER (PAGE_SIZE * (sc->maxsg + 1)) 398 if (bp->b_bcount > CISS_MAXFER) 399 bp->b_bcount = CISS_MAXFER; 400 #endif 401 minphys(bp); 402 } 403 404 /* 405 * submit a command and optionally wait for completition. 406 * wait arg abuses XS_CTL_POLL|XS_CTL_NOSLEEP flags to request 407 * to wait (XS_CTL_POLL) and to allow tsleep() (!XS_CTL_NOSLEEP) 408 * instead of busy loop waiting 409 */ 410 static int 411 ciss_cmd(struct ciss_ccb *ccb, int flags, int wait) 412 { 413 struct ciss_softc *sc = ccb->ccb_sc; 414 struct ciss_cmd *cmd = &ccb->ccb_cmd; 415 struct ciss_ccb *ccb1; 416 bus_dmamap_t dmap = ccb->ccb_dmamap; 417 u_int32_t id; 418 int i, tohz, error = 0; 419 420 if (ccb->ccb_state != CISS_CCB_READY) { 421 printf("%s: ccb %d not ready state=0x%x\n", device_xname(&sc->sc_dev), 422 cmd->id, ccb->ccb_state); 423 return (EINVAL); 424 } 425 426 if (ccb->ccb_data) { 427 bus_dma_segment_t *sgd; 428 429 if ((error = bus_dmamap_load(sc->sc_dmat, dmap, ccb->ccb_data, 430 ccb->ccb_len, NULL, flags))) { 431 if (error == EFBIG) 432 printf("more than %d dma segs\n", sc->maxsg); 433 else 434 printf("error %d loading dma map\n", error); 435 ciss_put_ccb(ccb); 436 return (error); 437 } 438 cmd->sgin = dmap->dm_nsegs; 439 440 sgd = dmap->dm_segs; 441 CISS_DPRINTF(CISS_D_DMA, ("data=%p/%u<0x%lx/%lu", 442 ccb->ccb_data, ccb->ccb_len, sgd->ds_addr, sgd->ds_len)); 443 444 for (i = 0; i < dmap->dm_nsegs; sgd++, i++) { 445 cmd->sgl[i].addr_lo = htole32(sgd->ds_addr); 446 cmd->sgl[i].addr_hi = 447 htole32((u_int64_t)sgd->ds_addr >> 32); 448 cmd->sgl[i].len = htole32(sgd->ds_len); 449 cmd->sgl[i].flags = htole32(0); 450 if (i) { 451 CISS_DPRINTF(CISS_D_DMA, 452 (",0x%lx/%lu", sgd->ds_addr, sgd->ds_len)); 453 } 454 } 455 456 CISS_DPRINTF(CISS_D_DMA, ("> ")); 457 458 bus_dmamap_sync(sc->sc_dmat, dmap, 0, dmap->dm_mapsize, 459 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 460 } else 461 cmd->sgin = 0; 462 cmd->sglen = htole16((u_int16_t)cmd->sgin); 463 bzero(&ccb->ccb_err, sizeof(ccb->ccb_err)); 464 465 bus_dmamap_sync(sc->sc_dmat, sc->cmdmap, 0, sc->cmdmap->dm_mapsize, 466 BUS_DMASYNC_PREWRITE); 467 468 if ((wait & (XS_CTL_POLL|XS_CTL_NOSLEEP)) == (XS_CTL_POLL|XS_CTL_NOSLEEP)) 469 bus_space_write_4(sc->sc_iot, sc->sc_ioh, CISS_IMR, 470 bus_space_read_4(sc->sc_iot, sc->sc_ioh, CISS_IMR) | sc->iem); 471 472 TAILQ_INSERT_TAIL(&sc->sc_ccbq, ccb, ccb_link); 473 ccb->ccb_state = CISS_CCB_ONQ; 474 CISS_DPRINTF(CISS_D_CMD, ("submit=0x%x ", cmd->id)); 475 bus_space_write_4(sc->sc_iot, sc->sc_ioh, CISS_INQ, ccb->ccb_cmdpa); 476 477 if (wait & XS_CTL_POLL) { 478 int etick; 479 CISS_DPRINTF(CISS_D_CMD, ("waiting ")); 480 481 i = ccb->ccb_xs? ccb->ccb_xs->timeout : 60000; 482 tohz = (i / 1000) * hz + (i % 1000) * (hz / 1000); 483 if (tohz == 0) 484 tohz = 1; 485 for (i *= 100, etick = tick + tohz; i--; ) { 486 if (!(wait & XS_CTL_NOSLEEP)) { 487 ccb->ccb_state = CISS_CCB_POLL; 488 CISS_DPRINTF(CISS_D_CMD, ("tsleep(%d) ", tohz)); 489 if (tsleep(ccb, PRIBIO + 1, "ciss_cmd", 490 tohz) == EWOULDBLOCK) { 491 break; 492 } 493 if (ccb->ccb_state != CISS_CCB_ONQ) { 494 tohz = etick - tick; 495 if (tohz <= 0) 496 break; 497 CISS_DPRINTF(CISS_D_CMD, ("T")); 498 continue; 499 } 500 ccb1 = ccb; 501 } else { 502 DELAY(10); 503 504 if (!(bus_space_read_4(sc->sc_iot, sc->sc_ioh, 505 CISS_ISR) & sc->iem)) { 506 CISS_DPRINTF(CISS_D_CMD, ("N")); 507 continue; 508 } 509 510 if ((id = bus_space_read_4(sc->sc_iot, sc->sc_ioh, 511 CISS_OUTQ)) == 0xffffffff) { 512 CISS_DPRINTF(CISS_D_CMD, ("Q")); 513 continue; 514 } 515 516 CISS_DPRINTF(CISS_D_CMD, ("got=0x%x ", id)); 517 ccb1 = (struct ciss_ccb *) 518 ((char *)sc->ccbs + (id >> 2) * sc->ccblen); 519 ccb1->ccb_cmd.id = htole32(id); 520 } 521 522 error = ciss_done(ccb1); 523 if (ccb1 == ccb) 524 break; 525 } 526 527 /* if never got a chance to be done above... */ 528 if (ccb->ccb_state != CISS_CCB_FREE) { 529 ccb->ccb_err.cmd_stat = CISS_ERR_TMO; 530 error = ciss_done(ccb); 531 } 532 533 CISS_DPRINTF(CISS_D_CMD, ("done %d:%d", 534 ccb->ccb_err.cmd_stat, ccb->ccb_err.scsi_stat)); 535 } 536 537 if ((wait & (XS_CTL_POLL|XS_CTL_NOSLEEP)) == (XS_CTL_POLL|XS_CTL_NOSLEEP)) 538 bus_space_write_4(sc->sc_iot, sc->sc_ioh, CISS_IMR, 539 bus_space_read_4(sc->sc_iot, sc->sc_ioh, CISS_IMR) & ~sc->iem); 540 541 return (error); 542 } 543 544 static int 545 ciss_done(struct ciss_ccb *ccb) 546 { 547 struct ciss_softc *sc = ccb->ccb_sc; 548 struct scsipi_xfer *xs = ccb->ccb_xs; 549 struct ciss_cmd *cmd; 550 ciss_lock_t lock; 551 int error = 0; 552 553 CISS_DPRINTF(CISS_D_CMD, ("ciss_done(%p) ", ccb)); 554 555 if (ccb->ccb_state != CISS_CCB_ONQ) { 556 printf("%s: unqueued ccb %p ready, state=0x%x\n", 557 device_xname(&sc->sc_dev), ccb, ccb->ccb_state); 558 return 1; 559 } 560 561 lock = CISS_LOCK(sc); 562 ccb->ccb_state = CISS_CCB_READY; 563 TAILQ_REMOVE(&sc->sc_ccbq, ccb, ccb_link); 564 565 if (ccb->ccb_cmd.id & CISS_CMD_ERR) 566 error = ciss_error(ccb); 567 568 cmd = &ccb->ccb_cmd; 569 if (ccb->ccb_data) { 570 bus_dmamap_sync(sc->sc_dmat, ccb->ccb_dmamap, 0, 571 ccb->ccb_dmamap->dm_mapsize, (cmd->flags & CISS_CDB_IN) ? 572 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 573 bus_dmamap_unload(sc->sc_dmat, ccb->ccb_dmamap); 574 ccb->ccb_xs = NULL; 575 ccb->ccb_data = NULL; 576 } 577 578 ciss_put_ccb(ccb); 579 580 if (xs) { 581 xs->resid = 0; 582 CISS_DPRINTF(CISS_D_CMD, ("scsipi_done(%p) ", xs)); 583 scsipi_done(xs); 584 } 585 CISS_UNLOCK(sc, lock); 586 587 return error; 588 } 589 590 static int 591 ciss_error(struct ciss_ccb *ccb) 592 { 593 struct ciss_softc *sc = ccb->ccb_sc; 594 struct ciss_error *err = &ccb->ccb_err; 595 struct scsipi_xfer *xs = ccb->ccb_xs; 596 int rv; 597 598 switch ((rv = le16toh(err->cmd_stat))) { 599 case CISS_ERR_OK: 600 break; 601 602 case CISS_ERR_INVCMD: 603 printf("%s: invalid cmd 0x%x: 0x%x is not valid @ 0x%x[%d]\n", 604 device_xname(&sc->sc_dev), ccb->ccb_cmd.id, 605 err->err_info, err->err_type[3], err->err_type[2]); 606 if (xs) { 607 bzero(&xs->sense, sizeof(xs->sense)); 608 xs->sense.scsi_sense.response_code = 609 SSD_RCODE_CURRENT | SSD_RCODE_VALID; 610 xs->sense.scsi_sense.flags = SKEY_ILLEGAL_REQUEST; 611 xs->sense.scsi_sense.asc = 0x24; /* ill field */ 612 xs->sense.scsi_sense.ascq = 0x0; 613 xs->error = XS_SENSE; 614 } 615 break; 616 617 case CISS_ERR_TMO: 618 xs->error = XS_TIMEOUT; 619 break; 620 621 case CISS_ERR_UNRUN: 622 /* Underrun */ 623 xs->resid = le32toh(err->resid); 624 CISS_DPRINTF(CISS_D_CMD, (" underrun resid=0x%x ", 625 xs->resid)); 626 break; 627 default: 628 if (xs) { 629 CISS_DPRINTF(CISS_D_CMD, ("scsi_stat=%x ", err->scsi_stat)); 630 switch (err->scsi_stat) { 631 case SCSI_CHECK: 632 xs->error = XS_SENSE; 633 bcopy(&err->sense[0], &xs->sense, 634 sizeof(xs->sense)); 635 CISS_DPRINTF(CISS_D_CMD, (" sense=%02x %02x %02x %02x ", 636 err->sense[0], err->sense[1], err->sense[2], err->sense[3])); 637 break; 638 639 case XS_BUSY: 640 xs->error = XS_BUSY; 641 break; 642 643 default: 644 CISS_DPRINTF(CISS_D_ERR, ("%s: " 645 "cmd_stat=%x scsi_stat=0x%x resid=0x%x\n", 646 device_xname(&sc->sc_dev), rv, err->scsi_stat, 647 le32toh(err->resid))); 648 printf("ciss driver stuffup in %s:%d: %s()\n", 649 __FILE__, __LINE__, __func__); 650 xs->error = XS_DRIVER_STUFFUP; 651 break; 652 } 653 xs->resid = le32toh(err->resid); 654 } 655 } 656 ccb->ccb_cmd.id &= htole32(~3); 657 658 return rv; 659 } 660 661 static int 662 ciss_inq(struct ciss_softc *sc, struct ciss_inquiry *inq) 663 { 664 struct ciss_ccb *ccb; 665 struct ciss_cmd *cmd; 666 667 ccb = ciss_get_ccb(sc); 668 ccb->ccb_len = sizeof(*inq); 669 ccb->ccb_data = inq; 670 ccb->ccb_xs = NULL; 671 cmd = &ccb->ccb_cmd; 672 cmd->tgt = htole32(CISS_CMD_MODE_PERIPH); 673 cmd->tgt2 = 0; 674 cmd->cdblen = 10; 675 cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL | CISS_CDB_IN; 676 cmd->tmo = htole16(0); 677 bzero(&cmd->cdb[0], sizeof(cmd->cdb)); 678 cmd->cdb[0] = CISS_CMD_CTRL_GET; 679 cmd->cdb[6] = CISS_CMS_CTRL_CTRL; 680 cmd->cdb[7] = sizeof(*inq) >> 8; /* biiiig endian */ 681 cmd->cdb[8] = sizeof(*inq) & 0xff; 682 683 return ciss_cmd(ccb, BUS_DMA_NOWAIT, XS_CTL_POLL|XS_CTL_NOSLEEP); 684 } 685 686 static int 687 ciss_ldmap(struct ciss_softc *sc) 688 { 689 struct ciss_ccb *ccb; 690 struct ciss_cmd *cmd; 691 struct ciss_ldmap *lmap; 692 ciss_lock_t lock; 693 int total, rv; 694 695 lock = CISS_LOCK_SCRATCH(sc); 696 lmap = sc->scratch; 697 lmap->size = htobe32(sc->maxunits * sizeof(lmap->map)); 698 total = sizeof(*lmap) + (sc->maxunits - 1) * sizeof(lmap->map); 699 700 ccb = ciss_get_ccb(sc); 701 ccb->ccb_len = total; 702 ccb->ccb_data = lmap; 703 ccb->ccb_xs = NULL; 704 cmd = &ccb->ccb_cmd; 705 cmd->tgt = CISS_CMD_MODE_PERIPH; 706 cmd->tgt2 = 0; 707 cmd->cdblen = 12; 708 cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL | CISS_CDB_IN; 709 cmd->tmo = htole16(30); 710 bzero(&cmd->cdb[0], sizeof(cmd->cdb)); 711 cmd->cdb[0] = CISS_CMD_LDMAP; 712 cmd->cdb[8] = total >> 8; /* biiiig endian */ 713 cmd->cdb[9] = total & 0xff; 714 715 rv = ciss_cmd(ccb, BUS_DMA_NOWAIT, XS_CTL_POLL|XS_CTL_NOSLEEP); 716 CISS_UNLOCK_SCRATCH(sc, lock); 717 718 if (rv) 719 return rv; 720 721 CISS_DPRINTF(CISS_D_MISC, ("lmap %x:%x\n", 722 lmap->map[0].tgt, lmap->map[0].tgt2)); 723 724 return 0; 725 } 726 727 static int 728 ciss_sync(struct ciss_softc *sc) 729 { 730 struct ciss_ccb *ccb; 731 struct ciss_cmd *cmd; 732 struct ciss_flush *flush; 733 ciss_lock_t lock; 734 int rv; 735 736 lock = CISS_LOCK_SCRATCH(sc); 737 flush = sc->scratch; 738 bzero(flush, sizeof(*flush)); 739 flush->flush = sc->sc_flush; 740 741 ccb = ciss_get_ccb(sc); 742 ccb->ccb_len = sizeof(*flush); 743 ccb->ccb_data = flush; 744 ccb->ccb_xs = NULL; 745 cmd = &ccb->ccb_cmd; 746 cmd->tgt = CISS_CMD_MODE_PERIPH; 747 cmd->tgt2 = 0; 748 cmd->cdblen = 10; 749 cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL | CISS_CDB_OUT; 750 cmd->tmo = 0; 751 bzero(&cmd->cdb[0], sizeof(cmd->cdb)); 752 cmd->cdb[0] = CISS_CMD_CTRL_SET; 753 cmd->cdb[6] = CISS_CMS_CTRL_FLUSH; 754 cmd->cdb[7] = sizeof(*flush) >> 8; /* biiiig endian */ 755 cmd->cdb[8] = sizeof(*flush) & 0xff; 756 757 rv = ciss_cmd(ccb, BUS_DMA_NOWAIT, XS_CTL_POLL|XS_CTL_NOSLEEP); 758 CISS_UNLOCK_SCRATCH(sc, lock); 759 760 return rv; 761 } 762 763 #if 0 764 static void 765 ciss_scsi_raw_cmd(struct scsipi_channel *chan, scsipi_adapter_req_t req, 766 void *arg) /* TODO */ 767 { 768 struct scsipi_xfer *xs = (struct scsipi_xfer *) arg; 769 struct ciss_rawsoftc *rsc = 770 (struct ciss_rawsoftc *) chan->chan_adapter->adapt_dev; 771 struct ciss_softc *sc = rsc->sc_softc; 772 struct ciss_ccb *ccb; 773 struct ciss_cmd *cmd; 774 ciss_lock_t lock; 775 int error; 776 777 CISS_DPRINTF(CISS_D_CMD, ("ciss_scsi_raw_cmd ")); 778 779 switch (req) 780 { 781 case ADAPTER_REQ_RUN_XFER: 782 if (xs->cmdlen > CISS_MAX_CDB) { 783 CISS_DPRINTF(CISS_D_CMD, ("CDB too big %p ", xs)); 784 bzero(&xs->sense, sizeof(xs->sense)); 785 printf("ciss driver stuffup in %s:%d: %s()\n", 786 __FILE__, __LINE__, __func__); 787 xs->error = XS_DRIVER_STUFFUP; 788 scsipi_done(xs); 789 break; 790 } 791 792 lock = CISS_LOCK(sc); 793 error = 0; 794 xs->error = XS_NOERROR; 795 796 /* TODO check this target has not yet employed w/ any volume */ 797 798 ccb = ciss_get_ccb(sc); 799 cmd = &ccb->ccb_cmd; 800 ccb->ccb_len = xs->datalen; 801 ccb->ccb_data = xs->data; 802 ccb->ccb_xs = xs; 803 804 cmd->cdblen = xs->cmdlen; 805 cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL; 806 if (xs->xs_control & XS_CTL_DATA_IN) 807 cmd->flags |= CISS_CDB_IN; 808 else if (xs->xs_control & XS_CTL_DATA_OUT) 809 cmd->flags |= CISS_CDB_OUT; 810 cmd->tmo = xs->timeout < 1000? 1 : xs->timeout / 1000; 811 bzero(&cmd->cdb[0], sizeof(cmd->cdb)); 812 bcopy(xs->cmd, &cmd->cdb[0], CISS_MAX_CDB); 813 814 if (ciss_cmd(ccb, BUS_DMA_WAITOK, 815 xs->xs_control & (XS_CTL_POLL|XS_CTL_NOSLEEP))) { 816 printf("ciss driver stuffup in %s:%d: %s()\n", 817 __FILE__, __LINE__, __func__); 818 xs->error = XS_DRIVER_STUFFUP; 819 scsipi_done(xs); 820 CISS_UNLOCK(sc, lock); 821 break; 822 } 823 824 CISS_UNLOCK(sc, lock); 825 break; 826 827 case ADAPTER_REQ_GROW_RESOURCES: 828 /* 829 * Not supported. 830 */ 831 break; 832 833 case ADAPTER_REQ_SET_XFER_MODE: 834 /* 835 * We can't change the transfer mode, but at least let 836 * scsipi know what the adapter has negociated. 837 */ 838 /* Get xfer mode and return it */ 839 break; 840 } 841 } 842 #endif 843 844 static void 845 ciss_scsi_cmd(struct scsipi_channel *chan, scsipi_adapter_req_t req, 846 void *arg) 847 { 848 struct scsipi_xfer *xs = (struct scsipi_xfer *) arg; 849 struct ciss_softc *sc = 850 (struct ciss_softc *) chan->chan_adapter->adapt_dev; 851 u_int8_t target; 852 struct ciss_ccb *ccb; 853 struct ciss_cmd *cmd; 854 int error; 855 ciss_lock_t lock; 856 857 CISS_DPRINTF(CISS_D_CMD, ("ciss_scsi_cmd ")); 858 859 switch (req) 860 { 861 case ADAPTER_REQ_RUN_XFER: 862 target = xs->xs_periph->periph_target; 863 CISS_DPRINTF(CISS_D_CMD, ("targ=%d ", target)); 864 if (xs->cmdlen > CISS_MAX_CDB) { 865 CISS_DPRINTF(CISS_D_CMD, ("CDB too big %p ", xs)); 866 bzero(&xs->sense, sizeof(xs->sense)); 867 printf("ciss driver stuffup in %s:%d: %s()\n", 868 __FILE__, __LINE__, __func__); 869 xs->error = XS_DRIVER_STUFFUP; 870 scsipi_done(xs); 871 break; 872 } 873 874 lock = CISS_LOCK(sc); 875 error = 0; 876 xs->error = XS_NOERROR; 877 878 /* XXX emulate SYNCHRONIZE_CACHE ??? */ 879 880 ccb = ciss_get_ccb(sc); 881 cmd = &ccb->ccb_cmd; 882 ccb->ccb_len = xs->datalen; 883 ccb->ccb_data = xs->data; 884 ccb->ccb_xs = xs; 885 cmd->tgt = CISS_CMD_MODE_LD | target; 886 cmd->tgt2 = 0; 887 cmd->cdblen = xs->cmdlen; 888 cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL; 889 if (xs->xs_control & XS_CTL_DATA_IN) 890 cmd->flags |= CISS_CDB_IN; 891 else if (xs->xs_control & XS_CTL_DATA_OUT) 892 cmd->flags |= CISS_CDB_OUT; 893 cmd->tmo = xs->timeout < 1000? 1 : xs->timeout / 1000; 894 bzero(&cmd->cdb[0], sizeof(cmd->cdb)); 895 bcopy(xs->cmd, &cmd->cdb[0], CISS_MAX_CDB); 896 CISS_DPRINTF(CISS_D_CMD, ("cmd=%02x %02x %02x %02x %02x %02x ", 897 cmd->cdb[0], cmd->cdb[1], cmd->cdb[2], 898 cmd->cdb[3], cmd->cdb[4], cmd->cdb[5])); 899 900 if (ciss_cmd(ccb, BUS_DMA_WAITOK, 901 xs->xs_control & (XS_CTL_POLL|XS_CTL_NOSLEEP))) { 902 printf("ciss driver stuffup in %s:%d: %s()\n", 903 __FILE__, __LINE__, __func__); 904 xs->error = XS_DRIVER_STUFFUP; 905 scsipi_done(xs); 906 CISS_UNLOCK(sc, lock); 907 return; 908 } 909 910 CISS_UNLOCK(sc, lock); 911 break; 912 case ADAPTER_REQ_GROW_RESOURCES: 913 /* 914 * Not supported. 915 */ 916 break; 917 case ADAPTER_REQ_SET_XFER_MODE: 918 /* 919 * We can't change the transfer mode, but at least let 920 * scsipi know what the adapter has negociated. 921 */ 922 /* FIXME: get xfer mode and write it into arg */ 923 break; 924 } 925 } 926 927 int 928 ciss_intr(void *v) 929 { 930 struct ciss_softc *sc = v; 931 struct ciss_ccb *ccb; 932 ciss_lock_t lock; 933 u_int32_t id; 934 int hit = 0; 935 936 CISS_DPRINTF(CISS_D_INTR, ("intr ")); 937 938 if (!(bus_space_read_4(sc->sc_iot, sc->sc_ioh, CISS_ISR) & sc->iem)) 939 return 0; 940 941 lock = CISS_LOCK(sc); 942 while ((id = bus_space_read_4(sc->sc_iot, sc->sc_ioh, CISS_OUTQ)) != 943 0xffffffff) { 944 945 ccb = (struct ciss_ccb *) ((char *)sc->ccbs + (id >> 2) * sc->ccblen); 946 ccb->ccb_cmd.id = htole32(id); 947 if (ccb->ccb_state == CISS_CCB_POLL) { 948 ccb->ccb_state = CISS_CCB_ONQ; 949 wakeup(ccb); 950 } else 951 ciss_done(ccb); 952 953 hit = 1; 954 } 955 CISS_UNLOCK(sc, lock); 956 957 CISS_DPRINTF(CISS_D_INTR, ("exit\n")); 958 return hit; 959 } 960 961 static void 962 ciss_heartbeat(void *v) 963 { 964 struct ciss_softc *sc = v; 965 u_int32_t hb; 966 967 hb = bus_space_read_4(sc->sc_iot, sc->cfg_ioh, 968 sc->cfgoff + offsetof(struct ciss_config, heartbeat)); 969 if (hb == sc->heartbeat) 970 panic("ciss: dead"); /* XX reset! */ 971 else 972 sc->heartbeat = hb; 973 974 callout_schedule(&sc->sc_hb, hz * 3); 975 } 976 977 #if 0 978 static void 979 ciss_kthread(void *v) 980 { 981 struct ciss_softc *sc = v; 982 ciss_lock_t lock; 983 984 for (;;) { 985 tsleep(sc, PRIBIO, device_xname(&sc->sc_dev), 0); 986 987 lock = CISS_LOCK(sc); 988 989 990 991 CISS_UNLOCK(sc, lock); 992 } 993 } 994 #endif 995 996 static int 997 ciss_scsi_ioctl(struct scsipi_channel *chan, u_long cmd, 998 void *addr, int flag, struct proc *p) 999 { 1000 #if NBIO > 0 1001 return ciss_ioctl(chan->chan_adapter->adapt_dev, cmd, addr); 1002 #else 1003 return ENOTTY; 1004 #endif 1005 } 1006 1007 #if NBIO > 0 1008 static int 1009 ciss_ioctl(struct device *dev, u_long cmd, void *addr) /* TODO */ 1010 { 1011 /* struct ciss_softc *sc = (struct ciss_softc *)dev; */ 1012 ciss_lock_t lock; 1013 int error; 1014 1015 lock = CISS_LOCK(sc); 1016 switch (cmd) { 1017 case BIOCINQ: 1018 case BIOCVOL: 1019 case BIOCDISK: 1020 case BIOCALARM: 1021 case BIOCBLINK: 1022 case BIOCSETSTATE: 1023 default: 1024 CISS_DPRINTF(CISS_D_IOCTL, ("%s: invalid ioctl\n", 1025 device_xname(&sc->sc_dev))); 1026 error = ENOTTY; 1027 } 1028 CISS_UNLOCK(sc, lock); 1029 1030 return error; 1031 } 1032 #endif 1033
Indexes created Mon Sep 22 13:09:51 GMT 2025