Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/ciss.c
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1 /* $NetBSD: ciss.c,v 1.6 2006/11/16 01:32:51 christos 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 1.6 2006/11/16 01:32:51 christos 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 <machine/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 caddr_t 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, caddr_t); 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 (caddr_t *)&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 *) (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 (caddr_t *)&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); 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 printf("%s: adapter LD map failed\n", sc->sc_dev.dv_xname); 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", sc->sc_dev.dv_xname)) { 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 printf("%s: controller registration failed", 378 sc->sc_dev.dv_xname); 379 #endif 380 381 return 0; 382 } 383 384 static void 385 ciss_shutdown(void *v) 386 { 387 struct ciss_softc *sc = v; 388 389 sc->sc_flush = CISS_FLUSH_DISABLE; 390 /* timeout_del(&sc->sc_hb); */ 391 ciss_sync(sc); 392 } 393 394 static void 395 cissminphys(struct buf *bp) 396 { 397 #if 0 /* TOSO */ 398 #define CISS_MAXFER (PAGE_SIZE * (sc->maxsg + 1)) 399 if (bp->b_bcount > CISS_MAXFER) 400 bp->b_bcount = CISS_MAXFER; 401 #endif 402 minphys(bp); 403 } 404 405 /* 406 * submit a command and optionally wait for completition. 407 * wait arg abuses XS_CTL_POLL|XS_CTL_NOSLEEP flags to request 408 * to wait (XS_CTL_POLL) and to allow tsleep() (!XS_CTL_NOSLEEP) 409 * instead of busy loop waiting 410 */ 411 static int 412 ciss_cmd(struct ciss_ccb *ccb, int flags, int wait) 413 { 414 struct ciss_softc *sc = ccb->ccb_sc; 415 struct ciss_cmd *cmd = &ccb->ccb_cmd; 416 struct ciss_ccb *ccb1; 417 bus_dmamap_t dmap = ccb->ccb_dmamap; 418 u_int32_t id; 419 int i, tohz, error = 0; 420 421 if (ccb->ccb_state != CISS_CCB_READY) { 422 printf("%s: ccb %d not ready state=0x%x\n", sc->sc_dev.dv_xname, 423 cmd->id, ccb->ccb_state); 424 return (EINVAL); 425 } 426 427 if (ccb->ccb_data) { 428 bus_dma_segment_t *sgd; 429 430 if ((error = bus_dmamap_load(sc->sc_dmat, dmap, ccb->ccb_data, 431 ccb->ccb_len, NULL, flags))) { 432 if (error == EFBIG) 433 printf("more than %d dma segs\n", sc->maxsg); 434 else 435 printf("error %d loading dma map\n", error); 436 ciss_put_ccb(ccb); 437 return (error); 438 } 439 cmd->sgin = dmap->dm_nsegs; 440 441 sgd = dmap->dm_segs; 442 CISS_DPRINTF(CISS_D_DMA, ("data=%p/%u<0x%lx/%lu", 443 ccb->ccb_data, ccb->ccb_len, sgd->ds_addr, sgd->ds_len)); 444 445 for (i = 0; i < dmap->dm_nsegs; sgd++, i++) { 446 cmd->sgl[i].addr_lo = htole32(sgd->ds_addr); 447 cmd->sgl[i].addr_hi = 448 htole32((u_int64_t)sgd->ds_addr >> 32); 449 cmd->sgl[i].len = htole32(sgd->ds_len); 450 cmd->sgl[i].flags = htole32(0); 451 if (i) { 452 CISS_DPRINTF(CISS_D_DMA, 453 (",0x%lx/%lu", sgd->ds_addr, sgd->ds_len)); 454 } 455 } 456 457 CISS_DPRINTF(CISS_D_DMA, ("> ")); 458 459 bus_dmamap_sync(sc->sc_dmat, dmap, 0, dmap->dm_mapsize, 460 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 461 } else 462 cmd->sgin = 0; 463 cmd->sglen = htole16((u_int16_t)cmd->sgin); 464 bzero(&ccb->ccb_err, sizeof(ccb->ccb_err)); 465 466 bus_dmamap_sync(sc->sc_dmat, sc->cmdmap, 0, sc->cmdmap->dm_mapsize, 467 BUS_DMASYNC_PREWRITE); 468 469 if ((wait & (XS_CTL_POLL|XS_CTL_NOSLEEP)) == (XS_CTL_POLL|XS_CTL_NOSLEEP)) 470 bus_space_write_4(sc->sc_iot, sc->sc_ioh, CISS_IMR, 471 bus_space_read_4(sc->sc_iot, sc->sc_ioh, CISS_IMR) | sc->iem); 472 473 TAILQ_INSERT_TAIL(&sc->sc_ccbq, ccb, ccb_link); 474 ccb->ccb_state = CISS_CCB_ONQ; 475 CISS_DPRINTF(CISS_D_CMD, ("submit=0x%x ", cmd->id)); 476 bus_space_write_4(sc->sc_iot, sc->sc_ioh, CISS_INQ, ccb->ccb_cmdpa); 477 478 if (wait & XS_CTL_POLL) { 479 int etick; 480 CISS_DPRINTF(CISS_D_CMD, ("waiting ")); 481 482 i = ccb->ccb_xs? ccb->ccb_xs->timeout : 60000; 483 tohz = (i / 1000) * hz + (i % 1000) * (hz / 1000); 484 if (tohz == 0) 485 tohz = 1; 486 for (i *= 100, etick = tick + tohz; i--; ) { 487 if (!(wait & XS_CTL_NOSLEEP)) { 488 ccb->ccb_state = CISS_CCB_POLL; 489 CISS_DPRINTF(CISS_D_CMD, ("tsleep(%d) ", tohz)); 490 if (tsleep(ccb, PRIBIO + 1, "ciss_cmd", 491 tohz) == EWOULDBLOCK) { 492 break; 493 } 494 if (ccb->ccb_state != CISS_CCB_ONQ) { 495 tohz = etick - tick; 496 if (tohz <= 0) 497 break; 498 CISS_DPRINTF(CISS_D_CMD, ("T")); 499 continue; 500 } 501 ccb1 = ccb; 502 } else { 503 DELAY(10); 504 505 if (!(bus_space_read_4(sc->sc_iot, sc->sc_ioh, 506 CISS_ISR) & sc->iem)) { 507 CISS_DPRINTF(CISS_D_CMD, ("N")); 508 continue; 509 } 510 511 if ((id = bus_space_read_4(sc->sc_iot, sc->sc_ioh, 512 CISS_OUTQ)) == 0xffffffff) { 513 CISS_DPRINTF(CISS_D_CMD, ("Q")); 514 continue; 515 } 516 517 CISS_DPRINTF(CISS_D_CMD, ("got=0x%x ", id)); 518 ccb1 = (struct ciss_ccb *) 519 (sc->ccbs + (id >> 2) * sc->ccblen); 520 ccb1->ccb_cmd.id = htole32(id); 521 } 522 523 error = ciss_done(ccb1); 524 if (ccb1 == ccb) 525 break; 526 } 527 528 /* if never got a chance to be done above... */ 529 if (ccb->ccb_state != CISS_CCB_FREE) { 530 ccb->ccb_err.cmd_stat = CISS_ERR_TMO; 531 error = ciss_done(ccb); 532 } 533 534 CISS_DPRINTF(CISS_D_CMD, ("done %d:%d", 535 ccb->ccb_err.cmd_stat, ccb->ccb_err.scsi_stat)); 536 } 537 538 if ((wait & (XS_CTL_POLL|XS_CTL_NOSLEEP)) == (XS_CTL_POLL|XS_CTL_NOSLEEP)) 539 bus_space_write_4(sc->sc_iot, sc->sc_ioh, CISS_IMR, 540 bus_space_read_4(sc->sc_iot, sc->sc_ioh, CISS_IMR) & ~sc->iem); 541 542 return (error); 543 } 544 545 static int 546 ciss_done(struct ciss_ccb *ccb) 547 { 548 struct ciss_softc *sc = ccb->ccb_sc; 549 struct scsipi_xfer *xs = ccb->ccb_xs; 550 struct ciss_cmd *cmd; 551 ciss_lock_t lock; 552 int error = 0; 553 554 CISS_DPRINTF(CISS_D_CMD, ("ciss_done(%p) ", ccb)); 555 556 if (ccb->ccb_state != CISS_CCB_ONQ) { 557 printf("%s: unqueued ccb %p ready, state=0x%x\n", 558 sc->sc_dev.dv_xname, ccb, ccb->ccb_state); 559 return 1; 560 } 561 562 lock = CISS_LOCK(sc); 563 ccb->ccb_state = CISS_CCB_READY; 564 TAILQ_REMOVE(&sc->sc_ccbq, ccb, ccb_link); 565 566 if (ccb->ccb_cmd.id & CISS_CMD_ERR) 567 error = ciss_error(ccb); 568 569 cmd = &ccb->ccb_cmd; 570 if (ccb->ccb_data) { 571 bus_dmamap_sync(sc->sc_dmat, ccb->ccb_dmamap, 0, 572 ccb->ccb_dmamap->dm_mapsize, (cmd->flags & CISS_CDB_IN) ? 573 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 574 bus_dmamap_unload(sc->sc_dmat, ccb->ccb_dmamap); 575 ccb->ccb_xs = NULL; 576 ccb->ccb_data = NULL; 577 } 578 579 ciss_put_ccb(ccb); 580 581 if (xs) { 582 xs->resid = 0; 583 CISS_DPRINTF(CISS_D_CMD, ("scsipi_done(%p) ", xs)); 584 scsipi_done(xs); 585 } 586 CISS_UNLOCK(sc, lock); 587 588 return error; 589 } 590 591 static int 592 ciss_error(struct ciss_ccb *ccb) 593 { 594 struct ciss_softc *sc = ccb->ccb_sc; 595 struct ciss_error *err = &ccb->ccb_err; 596 struct scsipi_xfer *xs = ccb->ccb_xs; 597 int rv; 598 599 switch ((rv = le16toh(err->cmd_stat))) { 600 case CISS_ERR_OK: 601 break; 602 603 case CISS_ERR_INVCMD: 604 printf("%s: invalid cmd 0x%x: 0x%x is not valid @ 0x%x[%d]\n", 605 sc->sc_dev.dv_xname, ccb->ccb_cmd.id, 606 err->err_info, err->err_type[3], err->err_type[2]); 607 if (xs) { 608 bzero(&xs->sense, sizeof(xs->sense)); 609 xs->sense.scsi_sense.response_code = 610 SSD_RCODE_CURRENT | SSD_RCODE_VALID; 611 xs->sense.scsi_sense.flags = SKEY_ILLEGAL_REQUEST; 612 xs->sense.scsi_sense.asc = 0x24; /* ill field */ 613 xs->sense.scsi_sense.ascq = 0x0; 614 xs->error = XS_SENSE; 615 } 616 break; 617 618 case CISS_ERR_TMO: 619 xs->error = XS_TIMEOUT; 620 break; 621 622 case CISS_ERR_UNRUN: 623 /* Underrun */ 624 xs->resid = le32toh(err->resid); 625 CISS_DPRINTF(CISS_D_CMD, (" underrun resid=0x%x ", 626 xs->resid)); 627 break; 628 default: 629 if (xs) { 630 CISS_DPRINTF(CISS_D_CMD, ("scsi_stat=%x ", err->scsi_stat)); 631 switch (err->scsi_stat) { 632 case SCSI_CHECK: 633 xs->error = XS_SENSE; 634 bcopy(&err->sense[0], &xs->sense, 635 sizeof(xs->sense)); 636 CISS_DPRINTF(CISS_D_CMD, (" sense=%02x %02x %02x %02x ", 637 err->sense[0], err->sense[1], err->sense[2], err->sense[3])); 638 break; 639 640 case XS_BUSY: 641 xs->error = XS_BUSY; 642 break; 643 644 default: 645 CISS_DPRINTF(CISS_D_ERR, ("%s: " 646 "cmd_stat=%x scsi_stat=0x%x resid=0x%x\n", 647 sc->sc_dev.dv_xname, rv, err->scsi_stat, 648 le32toh(err->resid))); 649 printf("ciss driver stuffup in %s:%d: %s()\n", 650 __FILE__, __LINE__, __FUNCTION__); 651 xs->error = XS_DRIVER_STUFFUP; 652 break; 653 } 654 xs->resid = le32toh(err->resid); 655 } 656 } 657 ccb->ccb_cmd.id &= htole32(~3); 658 659 return rv; 660 } 661 662 static int 663 ciss_inq(struct ciss_softc *sc, struct ciss_inquiry *inq) 664 { 665 struct ciss_ccb *ccb; 666 struct ciss_cmd *cmd; 667 668 ccb = ciss_get_ccb(sc); 669 ccb->ccb_len = sizeof(*inq); 670 ccb->ccb_data = inq; 671 ccb->ccb_xs = NULL; 672 cmd = &ccb->ccb_cmd; 673 cmd->tgt = htole32(CISS_CMD_MODE_PERIPH); 674 cmd->tgt2 = 0; 675 cmd->cdblen = 10; 676 cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL | CISS_CDB_IN; 677 cmd->tmo = htole16(0); 678 bzero(&cmd->cdb[0], sizeof(cmd->cdb)); 679 cmd->cdb[0] = CISS_CMD_CTRL_GET; 680 cmd->cdb[6] = CISS_CMS_CTRL_CTRL; 681 cmd->cdb[7] = sizeof(*inq) >> 8; /* biiiig endian */ 682 cmd->cdb[8] = sizeof(*inq) & 0xff; 683 684 return ciss_cmd(ccb, BUS_DMA_NOWAIT, XS_CTL_POLL|XS_CTL_NOSLEEP); 685 } 686 687 static int 688 ciss_ldmap(struct ciss_softc *sc) 689 { 690 struct ciss_ccb *ccb; 691 struct ciss_cmd *cmd; 692 struct ciss_ldmap *lmap; 693 ciss_lock_t lock; 694 int total, rv; 695 696 lock = CISS_LOCK_SCRATCH(sc); 697 lmap = sc->scratch; 698 lmap->size = htobe32(sc->maxunits * sizeof(lmap->map)); 699 total = sizeof(*lmap) + (sc->maxunits - 1) * sizeof(lmap->map); 700 701 ccb = ciss_get_ccb(sc); 702 ccb->ccb_len = total; 703 ccb->ccb_data = lmap; 704 ccb->ccb_xs = NULL; 705 cmd = &ccb->ccb_cmd; 706 cmd->tgt = CISS_CMD_MODE_PERIPH; 707 cmd->tgt2 = 0; 708 cmd->cdblen = 12; 709 cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL | CISS_CDB_IN; 710 cmd->tmo = htole16(30); 711 bzero(&cmd->cdb[0], sizeof(cmd->cdb)); 712 cmd->cdb[0] = CISS_CMD_LDMAP; 713 cmd->cdb[8] = total >> 8; /* biiiig endian */ 714 cmd->cdb[9] = total & 0xff; 715 716 rv = ciss_cmd(ccb, BUS_DMA_NOWAIT, XS_CTL_POLL|XS_CTL_NOSLEEP); 717 CISS_UNLOCK_SCRATCH(sc, lock); 718 719 if (rv) 720 return rv; 721 722 CISS_DPRINTF(CISS_D_MISC, ("lmap %x:%x\n", 723 lmap->map[0].tgt, lmap->map[0].tgt2)); 724 725 return 0; 726 } 727 728 static int 729 ciss_sync(struct ciss_softc *sc) 730 { 731 struct ciss_ccb *ccb; 732 struct ciss_cmd *cmd; 733 struct ciss_flush *flush; 734 ciss_lock_t lock; 735 int rv; 736 737 lock = CISS_LOCK_SCRATCH(sc); 738 flush = sc->scratch; 739 bzero(flush, sizeof(*flush)); 740 flush->flush = sc->sc_flush; 741 742 ccb = ciss_get_ccb(sc); 743 ccb->ccb_len = sizeof(*flush); 744 ccb->ccb_data = flush; 745 ccb->ccb_xs = NULL; 746 cmd = &ccb->ccb_cmd; 747 cmd->tgt = CISS_CMD_MODE_PERIPH; 748 cmd->tgt2 = 0; 749 cmd->cdblen = 10; 750 cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL | CISS_CDB_OUT; 751 cmd->tmo = 0; 752 bzero(&cmd->cdb[0], sizeof(cmd->cdb)); 753 cmd->cdb[0] = CISS_CMD_CTRL_SET; 754 cmd->cdb[6] = CISS_CMS_CTRL_FLUSH; 755 cmd->cdb[7] = sizeof(*flush) >> 8; /* biiiig endian */ 756 cmd->cdb[8] = sizeof(*flush) & 0xff; 757 758 rv = ciss_cmd(ccb, BUS_DMA_NOWAIT, XS_CTL_POLL|XS_CTL_NOSLEEP); 759 CISS_UNLOCK_SCRATCH(sc, lock); 760 761 return rv; 762 } 763 764 #if 0 765 static void 766 ciss_scsi_raw_cmd(struct scsipi_channel *chan, scsipi_adapter_req_t req, 767 void *arg) /* TODO */ 768 { 769 struct scsipi_xfer *xs = (struct scsipi_xfer *) arg; 770 struct ciss_rawsoftc *rsc = 771 (struct ciss_rawsoftc *) chan->chan_adapter->adapt_dev; 772 struct ciss_softc *sc = rsc->sc_softc; 773 struct ciss_ccb *ccb; 774 struct ciss_cmd *cmd; 775 ciss_lock_t lock; 776 int error; 777 778 CISS_DPRINTF(CISS_D_CMD, ("ciss_scsi_raw_cmd ")); 779 780 switch (req) 781 { 782 case ADAPTER_REQ_RUN_XFER: 783 if (xs->cmdlen > CISS_MAX_CDB) { 784 CISS_DPRINTF(CISS_D_CMD, ("CDB too big %p ", xs)); 785 bzero(&xs->sense, sizeof(xs->sense)); 786 printf("ciss driver stuffup in %s:%d: %s()\n", 787 __FILE__, __LINE__, __FUNCTION__); 788 xs->error = XS_DRIVER_STUFFUP; 789 scsipi_done(xs); 790 break; 791 } 792 793 lock = CISS_LOCK(sc); 794 error = 0; 795 xs->error = XS_NOERROR; 796 797 /* TODO check this target has not yet employed w/ any volume */ 798 799 ccb = ciss_get_ccb(sc); 800 cmd = &ccb->ccb_cmd; 801 ccb->ccb_len = xs->datalen; 802 ccb->ccb_data = xs->data; 803 ccb->ccb_xs = xs; 804 805 cmd->cdblen = xs->cmdlen; 806 cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL; 807 if (xs->xs_control & XS_CTL_DATA_IN) 808 cmd->flags |= CISS_CDB_IN; 809 else if (xs->xs_control & XS_CTL_DATA_OUT) 810 cmd->flags |= CISS_CDB_OUT; 811 cmd->tmo = xs->timeout < 1000? 1 : xs->timeout / 1000; 812 bzero(&cmd->cdb[0], sizeof(cmd->cdb)); 813 bcopy(xs->cmd, &cmd->cdb[0], CISS_MAX_CDB); 814 815 if (ciss_cmd(ccb, BUS_DMA_WAITOK, 816 xs->xs_control & (XS_CTL_POLL|XS_CTL_NOSLEEP))) { 817 printf("ciss driver stuffup in %s:%d: %s()\n", 818 __FILE__, __LINE__, __FUNCTION__); 819 xs->error = XS_DRIVER_STUFFUP; 820 scsipi_done(xs); 821 CISS_UNLOCK(sc, lock); 822 break; 823 } 824 825 CISS_UNLOCK(sc, lock); 826 break; 827 828 case ADAPTER_REQ_GROW_RESOURCES: 829 /* 830 * Not supported. 831 */ 832 break; 833 834 case ADAPTER_REQ_SET_XFER_MODE: 835 /* 836 * We can't change the transfer mode, but at least let 837 * scsipi know what the adapter has negociated. 838 */ 839 /* Get xfer mode and return it */ 840 break; 841 } 842 } 843 #endif 844 845 static void 846 ciss_scsi_cmd(struct scsipi_channel *chan, scsipi_adapter_req_t req, 847 void *arg) 848 { 849 struct scsipi_xfer *xs = (struct scsipi_xfer *) arg; 850 struct ciss_softc *sc = 851 (struct ciss_softc *) chan->chan_adapter->adapt_dev; 852 u_int8_t target; 853 struct ciss_ccb *ccb; 854 struct ciss_cmd *cmd; 855 int error; 856 ciss_lock_t lock; 857 858 CISS_DPRINTF(CISS_D_CMD, ("ciss_scsi_cmd ")); 859 860 switch (req) 861 { 862 case ADAPTER_REQ_RUN_XFER: 863 target = xs->xs_periph->periph_target; 864 CISS_DPRINTF(CISS_D_CMD, ("targ=%d ", target)); 865 if (xs->cmdlen > CISS_MAX_CDB) { 866 CISS_DPRINTF(CISS_D_CMD, ("CDB too big %p ", xs)); 867 bzero(&xs->sense, sizeof(xs->sense)); 868 printf("ciss driver stuffup in %s:%d: %s()\n", 869 __FILE__, __LINE__, __FUNCTION__); 870 xs->error = XS_DRIVER_STUFFUP; 871 scsipi_done(xs); 872 break; 873 } 874 875 lock = CISS_LOCK(sc); 876 error = 0; 877 xs->error = XS_NOERROR; 878 879 /* XXX emulate SYNCHRONIZE_CACHE ??? */ 880 881 ccb = ciss_get_ccb(sc); 882 cmd = &ccb->ccb_cmd; 883 ccb->ccb_len = xs->datalen; 884 ccb->ccb_data = xs->data; 885 ccb->ccb_xs = xs; 886 cmd->tgt = CISS_CMD_MODE_LD | target; 887 cmd->tgt2 = 0; 888 cmd->cdblen = xs->cmdlen; 889 cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL; 890 if (xs->xs_control & XS_CTL_DATA_IN) 891 cmd->flags |= CISS_CDB_IN; 892 else if (xs->xs_control & XS_CTL_DATA_OUT) 893 cmd->flags |= CISS_CDB_OUT; 894 cmd->tmo = xs->timeout < 1000? 1 : xs->timeout / 1000; 895 bzero(&cmd->cdb[0], sizeof(cmd->cdb)); 896 bcopy(xs->cmd, &cmd->cdb[0], CISS_MAX_CDB); 897 CISS_DPRINTF(CISS_D_CMD, ("cmd=%02x %02x %02x %02x %02x %02x ", 898 cmd->cdb[0], cmd->cdb[1], cmd->cdb[2], 899 cmd->cdb[3], cmd->cdb[4], cmd->cdb[5])); 900 901 if (ciss_cmd(ccb, BUS_DMA_WAITOK, 902 xs->xs_control & (XS_CTL_POLL|XS_CTL_NOSLEEP))) { 903 printf("ciss driver stuffup in %s:%d: %s()\n", 904 __FILE__, __LINE__, __FUNCTION__); 905 xs->error = XS_DRIVER_STUFFUP; 906 scsipi_done(xs); 907 CISS_UNLOCK(sc, lock); 908 return; 909 } 910 911 CISS_UNLOCK(sc, lock); 912 break; 913 case ADAPTER_REQ_GROW_RESOURCES: 914 /* 915 * Not supported. 916 */ 917 break; 918 case ADAPTER_REQ_SET_XFER_MODE: 919 /* 920 * We can't change the transfer mode, but at least let 921 * scsipi know what the adapter has negociated. 922 */ 923 /* FIXME: get xfer mode and write it into arg */ 924 break; 925 } 926 } 927 928 int 929 ciss_intr(void *v) 930 { 931 struct ciss_softc *sc = v; 932 struct ciss_ccb *ccb; 933 ciss_lock_t lock; 934 u_int32_t id; 935 int hit = 0; 936 937 CISS_DPRINTF(CISS_D_INTR, ("intr ")); 938 939 if (!(bus_space_read_4(sc->sc_iot, sc->sc_ioh, CISS_ISR) & sc->iem)) 940 return 0; 941 942 lock = CISS_LOCK(sc); 943 while ((id = bus_space_read_4(sc->sc_iot, sc->sc_ioh, CISS_OUTQ)) != 944 0xffffffff) { 945 946 ccb = (struct ciss_ccb *) (sc->ccbs + (id >> 2) * sc->ccblen); 947 ccb->ccb_cmd.id = htole32(id); 948 if (ccb->ccb_state == CISS_CCB_POLL) { 949 ccb->ccb_state = CISS_CCB_ONQ; 950 wakeup(ccb); 951 } else 952 ciss_done(ccb); 953 954 hit = 1; 955 } 956 CISS_UNLOCK(sc, lock); 957 958 CISS_DPRINTF(CISS_D_INTR, ("exit\n")); 959 return hit; 960 } 961 962 static void 963 ciss_heartbeat(void *v) 964 { 965 struct ciss_softc *sc = v; 966 u_int32_t hb; 967 968 hb = bus_space_read_4(sc->sc_iot, sc->cfg_ioh, 969 sc->cfgoff + offsetof(struct ciss_config, heartbeat)); 970 if (hb == sc->heartbeat) 971 panic("ciss: dead"); /* XX reset! */ 972 else 973 sc->heartbeat = hb; 974 975 callout_schedule(&sc->sc_hb, hz * 3); 976 } 977 978 #if 0 979 static void 980 ciss_kthread(void *v) 981 { 982 struct ciss_softc *sc = v; 983 ciss_lock_t lock; 984 985 for (;;) { 986 tsleep(sc, PRIBIO, sc->sc_dev.dv_xname, 0); 987 988 lock = CISS_LOCK(sc); 989 990 991 992 CISS_UNLOCK(sc, lock); 993 } 994 } 995 #endif 996 997 static int 998 ciss_scsi_ioctl(struct scsipi_channel *chan, u_long cmd, 999 caddr_t addr, int flag, struct proc *p) 1000 { 1001 #if NBIO > 0 1002 return ciss_ioctl(chan->chan_adapter->adapt_dev, cmd, addr); 1003 #else 1004 return ENOTTY; 1005 #endif 1006 } 1007 1008 #if NBIO > 0 1009 static int 1010 ciss_ioctl(struct device *dev, u_long cmd, caddr_t addr) /* TODO */ 1011 { 1012 /* struct ciss_softc *sc = (struct ciss_softc *)dev; */ 1013 ciss_lock_t lock; 1014 int error; 1015 1016 lock = CISS_LOCK(sc); 1017 switch (cmd) { 1018 case BIOCINQ: 1019 case BIOCVOL: 1020 case BIOCDISK: 1021 case BIOCALARM: 1022 case BIOCBLINK: 1023 case BIOCSETSTATE: 1024 default: 1025 CISS_DPRINTF(CISS_D_IOCTL, ("%s: invalid ioctl\n", 1026 sc->sc_dev.dv_xname)); 1027 error = ENOTTY; 1028 } 1029 CISS_UNLOCK(sc, lock); 1030 1031 return error; 1032 } 1033 #endif
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