1 /*- 2 * Copyright (c) 1997-2006 by Matthew Jacob 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice immediately at the beginning of the file, without modification, 10 * this list of conditions, and the following disclaimer. 11 * 2. The name of the author may not be used to endorse or promote products 12 * derived from this software without specific prior written permission. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 18 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 /* 27 * SBus specific probe and attach routines for Qlogic ISP SCSI adapters. 28 * FreeBSD Version. 29 */ 30 31 #include <sys/cdefs.h> 32 __FBSDID("$FreeBSD$"); 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/linker.h> 37 #include <sys/firmware.h> 38 #include <sys/bus.h> 39 #include <sys/kernel.h> 40 #include <sys/module.h> 41 #include <sys/resource.h> 42 43 #include <dev/ofw/ofw_bus.h> 44 #include <dev/ofw/openfirm.h> 45 46 #include <machine/bus.h> 47 #include <machine/ofw_machdep.h> 48 #include <machine/resource.h> 49 #include <sys/rman.h> 50 #include <sparc64/sbus/sbusvar.h> 51 52 #include <dev/isp/isp_freebsd.h> 53 54 static uint32_t isp_sbus_rd_reg(ispsoftc_t *, int); 55 static void isp_sbus_wr_reg(ispsoftc_t *, int, uint32_t); 56 static int isp_sbus_rd_isr(ispsoftc_t *, uint32_t *, uint16_t *, uint16_t *); 57 static int isp_sbus_mbxdma(ispsoftc_t *); 58 static int isp_sbus_dmasetup(ispsoftc_t *, XS_T *, void *); 59 60 61 static void isp_sbus_reset0(ispsoftc_t *); 62 static void isp_sbus_reset1(ispsoftc_t *); 63 static void isp_sbus_dumpregs(ispsoftc_t *, const char *); 64 65 static struct ispmdvec mdvec = { 66 isp_sbus_rd_isr, 67 isp_sbus_rd_reg, 68 isp_sbus_wr_reg, 69 isp_sbus_mbxdma, 70 isp_sbus_dmasetup, 71 isp_common_dmateardown, 72 isp_sbus_reset0, 73 isp_sbus_reset1, 74 isp_sbus_dumpregs, 75 NULL, 76 BIU_BURST_ENABLE|BIU_PCI_CONF1_FIFO_64 77 }; 78 79 static int isp_sbus_probe (device_t); 80 static int isp_sbus_attach (device_t); 81 82 83 #define ISP_SBD(isp) ((struct isp_sbussoftc *)isp)->sbus_dev 84 struct isp_sbussoftc { 85 ispsoftc_t sbus_isp; 86 device_t sbus_dev; 87 struct resource * sbus_reg; 88 void * ih; 89 int16_t sbus_poff[_NREG_BLKS]; 90 sdparam sbus_param; 91 struct isp_spi sbus_spi; 92 struct ispmdvec sbus_mdvec; 93 struct resource * sbus_ires; 94 }; 95 96 97 static device_method_t isp_sbus_methods[] = { 98 /* Device interface */ 99 DEVMETHOD(device_probe, isp_sbus_probe), 100 DEVMETHOD(device_attach, isp_sbus_attach), 101 { 0, 0 } 102 }; 103 104 static driver_t isp_sbus_driver = { 105 "isp", isp_sbus_methods, sizeof (struct isp_sbussoftc) 106 }; 107 static devclass_t isp_devclass; 108 DRIVER_MODULE(isp, sbus, isp_sbus_driver, isp_devclass, 0, 0); 109 110 static int 111 isp_sbus_probe(device_t dev) 112 { 113 int found = 0; 114 const char *name = ofw_bus_get_name(dev); 115 if (strcmp(name, "SUNW,isp") == 0 || 116 strcmp(name, "QLGC,isp") == 0 || 117 strcmp(name, "ptisp") == 0 || 118 strcmp(name, "PTI,ptisp") == 0) { 119 found++; 120 } 121 if (!found) 122 return (ENXIO); 123 124 if (isp_announced == 0 && bootverbose) { 125 printf("Qlogic ISP Driver, FreeBSD Version %d.%d, " 126 "Core Version %d.%d\n", 127 ISP_PLATFORM_VERSION_MAJOR, ISP_PLATFORM_VERSION_MINOR, 128 ISP_CORE_VERSION_MAJOR, ISP_CORE_VERSION_MINOR); 129 isp_announced++; 130 } 131 return (0); 132 } 133 134 static int 135 isp_sbus_attach(device_t dev) 136 { 137 struct resource *regs; 138 int tval, iqd, isp_debug, role, rid, ispburst, default_id; 139 struct isp_sbussoftc *sbs; 140 ispsoftc_t *isp = NULL; 141 int locksetup = 0; 142 int ints_setup = 0; 143 144 /* 145 * Figure out if we're supposed to skip this one. 146 * If we are, we actually go to ISP_ROLE_NONE. 147 */ 148 149 tval = 0; 150 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 151 "disable", &tval) == 0 && tval) { 152 device_printf(dev, "device is disabled\n"); 153 /* but return 0 so the !$)$)*!$*) unit isn't reused */ 154 return (0); 155 } 156 157 role = 0; 158 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 159 "role", &role) == 0 && 160 ((role & ~(ISP_ROLE_INITIATOR|ISP_ROLE_TARGET)) == 0)) { 161 device_printf(dev, "setting role to 0x%x\n", role); 162 } else { 163 role = ISP_DEFAULT_ROLES; 164 } 165 166 sbs = malloc(sizeof (*sbs), M_DEVBUF, M_NOWAIT | M_ZERO); 167 if (sbs == NULL) { 168 device_printf(dev, "cannot allocate softc\n"); 169 return (ENOMEM); 170 } 171 172 regs = NULL; 173 iqd = 0; 174 rid = 0; 175 regs = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE); 176 if (regs == 0) { 177 device_printf(dev, "unable to map registers\n"); 178 goto bad; 179 } 180 sbs->sbus_dev = dev; 181 sbs->sbus_reg = regs; 182 sbs->sbus_mdvec = mdvec; 183 184 sbs->sbus_poff[BIU_BLOCK >> _BLK_REG_SHFT] = BIU_REGS_OFF; 185 sbs->sbus_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = SBUS_MBOX_REGS_OFF; 186 sbs->sbus_poff[SXP_BLOCK >> _BLK_REG_SHFT] = SBUS_SXP_REGS_OFF; 187 sbs->sbus_poff[RISC_BLOCK >> _BLK_REG_SHFT] = SBUS_RISC_REGS_OFF; 188 sbs->sbus_poff[DMA_BLOCK >> _BLK_REG_SHFT] = DMA_REGS_OFF; 189 isp = &sbs->sbus_isp; 190 isp->isp_bus_tag = rman_get_bustag(regs); 191 isp->isp_bus_handle = rman_get_bushandle(regs); 192 isp->isp_mdvec = &sbs->sbus_mdvec; 193 isp->isp_bustype = ISP_BT_SBUS; 194 isp->isp_type = ISP_HA_SCSI_UNKNOWN; 195 isp->isp_param = &sbs->sbus_param; 196 isp->isp_osinfo.pc.ptr = &sbs->sbus_spi; 197 isp->isp_revision = 0; /* XXX */ 198 isp->isp_dev = dev; 199 isp->isp_nchan = 1; 200 ISP_SET_PC(isp, 0, def_role, role); 201 202 /* 203 * Get the clock frequency and convert it from HZ to MHz, 204 * rounding up. This defaults to 25MHz if there isn't a 205 * device specific one in the OFW device tree. 206 */ 207 sbs->sbus_mdvec.dv_clock = (sbus_get_clockfreq(dev) + 500000)/1000000; 208 209 /* 210 * Now figure out what the proper burst sizes, etc., to use. 211 * Unfortunately, there is no ddi_dma_burstsizes here which 212 * walks up the tree finding the limiting burst size node (if 213 * any). We just use what's here for isp. 214 */ 215 ispburst = sbus_get_burstsz(dev); 216 if (ispburst == 0) { 217 ispburst = SBUS_BURST_32 - 1; 218 } 219 sbs->sbus_mdvec.dv_conf1 = 0; 220 if (ispburst & (1 << 5)) { 221 sbs->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_32; 222 } else if (ispburst & (1 << 4)) { 223 sbs->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_16; 224 } else if (ispburst & (1 << 3)) { 225 sbs->sbus_mdvec.dv_conf1 = 226 BIU_SBUS_CONF1_BURST8 | BIU_SBUS_CONF1_FIFO_8; 227 } 228 if (sbs->sbus_mdvec.dv_conf1) { 229 sbs->sbus_mdvec.dv_conf1 |= BIU_BURST_ENABLE; 230 } 231 232 /* 233 * We don't trust NVRAM on SBus cards 234 */ 235 isp->isp_confopts |= ISP_CFG_NONVRAM; 236 237 /* 238 * Mark things if we're a PTI SBus adapter. 239 */ 240 if (strcmp("PTI,ptisp", ofw_bus_get_name(dev)) == 0 || 241 strcmp("ptisp", ofw_bus_get_name(dev)) == 0) { 242 SDPARAM(isp, 0)->isp_ptisp = 1; 243 } 244 245 246 isp->isp_osinfo.fw = firmware_get("isp_1000"); 247 if (isp->isp_osinfo.fw) { 248 union { 249 const void *cp; 250 uint16_t *sp; 251 } stupid; 252 stupid.cp = isp->isp_osinfo.fw->data; 253 isp->isp_mdvec->dv_ispfw = stupid.sp; 254 } 255 256 tval = 0; 257 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 258 "fwload_disable", &tval) == 0 && tval != 0) { 259 isp->isp_confopts |= ISP_CFG_NORELOAD; 260 } 261 262 default_id = -1; 263 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 264 "iid", &tval) == 0) { 265 default_id = tval; 266 isp->isp_confopts |= ISP_CFG_OWNLOOPID; 267 } 268 if (default_id == -1) { 269 default_id = OF_getscsinitid(dev); 270 } 271 ISP_SPI_PC(isp, 0)->iid = default_id; 272 273 isp_debug = 0; 274 (void) resource_int_value(device_get_name(dev), device_get_unit(dev), 275 "debug", &isp_debug); 276 277 /* Make sure the lock is set up. */ 278 mtx_init(&isp->isp_osinfo.lock, "isp", NULL, MTX_DEF); 279 locksetup++; 280 281 iqd = 0; 282 sbs->sbus_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd, 283 RF_ACTIVE | RF_SHAREABLE); 284 if (sbs->sbus_ires == NULL) { 285 device_printf(dev, "could not allocate interrupt\n"); 286 goto bad; 287 } 288 289 if (isp_setup_intr(dev, sbs->sbus_ires, ISP_IFLAGS, NULL, 290 isp_platform_intr, isp, &sbs->ih)) { 291 device_printf(dev, "could not setup interrupt\n"); 292 goto bad; 293 } 294 ints_setup++; 295 296 /* 297 * Set up logging levels. 298 */ 299 if (isp_debug) { 300 isp->isp_dblev = isp_debug; 301 } else { 302 isp->isp_dblev = ISP_LOGWARN|ISP_LOGERR; 303 } 304 if (bootverbose) { 305 isp->isp_dblev |= ISP_LOGCONFIG|ISP_LOGINFO; 306 } 307 308 /* 309 * Make sure we're in reset state. 310 */ 311 ISP_LOCK(isp); 312 isp_reset(isp, 1); 313 if (isp->isp_state != ISP_RESETSTATE) { 314 isp_uninit(isp); 315 ISP_UNLOCK(isp); 316 goto bad; 317 } 318 isp_init(isp); 319 if (isp->isp_state == ISP_INITSTATE) { 320 isp->isp_state = ISP_RUNSTATE; 321 } 322 ISP_UNLOCK(isp); 323 if (isp_attach(isp)) { 324 ISP_LOCK(isp); 325 isp_uninit(isp); 326 ISP_UNLOCK(isp); 327 goto bad; 328 } 329 return (0); 330 331 bad: 332 333 if (sbs && ints_setup) { 334 (void) bus_teardown_intr(dev, sbs->sbus_ires, sbs->ih); 335 } 336 337 if (sbs && sbs->sbus_ires) { 338 bus_release_resource(dev, SYS_RES_IRQ, iqd, sbs->sbus_ires); 339 } 340 341 if (locksetup && isp) { 342 mtx_destroy(&isp->isp_osinfo.lock); 343 } 344 345 if (regs) { 346 (void) bus_release_resource(dev, SYS_RES_MEMORY, 0, regs); 347 } 348 349 if (sbs) { 350 free(sbs, M_DEVBUF); 351 } 352 return (ENXIO); 353 } 354 355 #define IspVirt2Off(a, x) \ 356 (((struct isp_sbussoftc *)a)->sbus_poff[((x) & _BLK_REG_MASK) >> \ 357 _BLK_REG_SHFT] + ((x) & 0xff)) 358 359 #define BXR2(sbc, off) \ 360 bus_space_read_2(isp->isp_bus_tag, isp->isp_bus_handle, off) 361 362 static int 363 isp_sbus_rd_isr(ispsoftc_t *isp, uint32_t *isrp, uint16_t *semap, uint16_t *mbp) 364 { 365 uint16_t isr, sema; 366 367 isr = BXR2(sbc, IspVirt2Off(isp, BIU_ISR)); 368 sema = BXR2(sbc, IspVirt2Off(isp, BIU_SEMA)); 369 isp_prt(isp, ISP_LOGDEBUG3, "ISR 0x%x SEMA 0x%x", isr, sema); 370 isr &= INT_PENDING_MASK(isp); 371 sema &= BIU_SEMA_LOCK; 372 if (isr == 0 && sema == 0) { 373 return (0); 374 } 375 *isrp = isr; 376 if ((*semap = sema) != 0) { 377 *mbp = BXR2(sbc, IspVirt2Off(isp, OUTMAILBOX0)); 378 } 379 return (1); 380 } 381 382 static uint32_t 383 isp_sbus_rd_reg(ispsoftc_t *isp, int regoff) 384 { 385 uint16_t rval; 386 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp; 387 int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; 388 offset += (regoff & 0xff); 389 rval = bus_space_read_2(isp->isp_bus_tag, isp->isp_bus_handle, offset); 390 isp_prt(isp, ISP_LOGDEBUG3, 391 "isp_sbus_rd_reg(off %x) = %x", regoff, rval); 392 return (rval); 393 } 394 395 static void 396 isp_sbus_wr_reg(ispsoftc_t *isp, int regoff, uint32_t val) 397 { 398 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp; 399 int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; 400 offset += (regoff & 0xff); 401 isp_prt(isp, ISP_LOGDEBUG3, 402 "isp_sbus_wr_reg(off %x) = %x", regoff, val); 403 bus_space_write_2(isp->isp_bus_tag, isp->isp_bus_handle, offset, val); 404 MEMORYBARRIER(isp, SYNC_REG, offset, 2, -1); 405 } 406 407 struct imush { 408 ispsoftc_t *isp; 409 int error; 410 }; 411 412 static void imc(void *, bus_dma_segment_t *, int, int); 413 414 static void 415 imc(void *arg, bus_dma_segment_t *segs, int nseg, int error) 416 { 417 struct imush *imushp = (struct imush *) arg; 418 if (error) { 419 imushp->error = error; 420 } else { 421 ispsoftc_t *isp =imushp->isp; 422 bus_addr_t addr = segs->ds_addr; 423 424 isp->isp_rquest_dma = addr; 425 addr += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); 426 isp->isp_result_dma = addr; 427 } 428 } 429 430 static int 431 isp_sbus_mbxdma(ispsoftc_t *isp) 432 { 433 caddr_t base; 434 uint32_t len; 435 int i, error, ns; 436 struct imush im; 437 438 /* 439 * Already been here? If so, leave... 440 */ 441 if (isp->isp_rquest) { 442 return (0); 443 } 444 445 ISP_UNLOCK(isp); 446 447 len = sizeof (struct isp_pcmd) * isp->isp_maxcmds; 448 isp->isp_osinfo.pcmd_pool = (struct isp_pcmd *) 449 malloc(len, M_DEVBUF, M_WAITOK | M_ZERO); 450 if (isp->isp_osinfo.pcmd_pool == NULL) { 451 isp_prt(isp, ISP_LOGERR, "cannot alloc pcmd pool"); 452 ISP_LOCK(isp); 453 return (1); 454 } 455 456 len = sizeof (isp_hdl_t *) * isp->isp_maxcmds; 457 isp->isp_xflist = (isp_hdl_t *) malloc(len, M_DEVBUF, M_WAITOK | M_ZERO); 458 if (isp->isp_xflist == NULL) { 459 isp_prt(isp, ISP_LOGERR, "cannot alloc xflist array"); 460 ISP_LOCK(isp); 461 return (1); 462 } 463 for (len = 0; len < isp->isp_maxcmds - 1; len++) { 464 isp->isp_xflist[len].cmd = &isp->isp_xflist[len+1]; 465 } 466 isp->isp_xffree = isp->isp_xflist; 467 len = sizeof (bus_dmamap_t) * isp->isp_maxcmds; 468 469 if (isp_dma_tag_create(BUS_DMA_ROOTARG(ISP_SBD(isp)), 1, 470 BUS_SPACE_MAXADDR_24BIT+1, BUS_SPACE_MAXADDR_32BIT, 471 BUS_SPACE_MAXADDR_32BIT, NULL, NULL, BUS_SPACE_MAXSIZE_32BIT, 472 ISP_NSEGS, BUS_SPACE_MAXADDR_24BIT, 0, &isp->isp_osinfo.dmat)) { 473 isp_prt(isp, ISP_LOGERR, "could not create master dma tag"); 474 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF); 475 free(isp->isp_xflist, M_DEVBUF); 476 ISP_LOCK(isp); 477 return(1); 478 } 479 480 /* 481 * Allocate and map the request, result queues, plus FC scratch area. 482 */ 483 len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); 484 len += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp)); 485 486 ns = (len / PAGE_SIZE) + 1; 487 if (isp_dma_tag_create(isp->isp_osinfo.dmat, QENTRY_LEN, 488 BUS_SPACE_MAXADDR_24BIT+1, BUS_SPACE_MAXADDR_32BIT, 489 BUS_SPACE_MAXADDR_32BIT, NULL, NULL, len, ns, 490 BUS_SPACE_MAXADDR_24BIT, 0, &isp->isp_osinfo.cdmat)) { 491 isp_prt(isp, ISP_LOGERR, 492 "cannot create a dma tag for control spaces"); 493 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF); 494 free(isp->isp_xflist, M_DEVBUF); 495 ISP_LOCK(isp); 496 return (1); 497 } 498 499 if (bus_dmamem_alloc(isp->isp_osinfo.cdmat, (void **)&base, BUS_DMA_NOWAIT | BUS_DMA_COHERENT, 500 &isp->isp_osinfo.cdmap) != 0) { 501 isp_prt(isp, ISP_LOGERR, 502 "cannot allocate %d bytes of CCB memory", len); 503 bus_dma_tag_destroy(isp->isp_osinfo.cdmat); 504 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF); 505 free(isp->isp_xflist, M_DEVBUF); 506 ISP_LOCK(isp); 507 return (1); 508 } 509 510 for (i = 0; i < isp->isp_maxcmds; i++) { 511 struct isp_pcmd *pcmd = &isp->isp_osinfo.pcmd_pool[i]; 512 error = bus_dmamap_create(isp->isp_osinfo.dmat, 0, &pcmd->dmap); 513 if (error) { 514 isp_prt(isp, ISP_LOGERR, 515 "error %d creating per-cmd DMA maps", error); 516 while (--i >= 0) { 517 bus_dmamap_destroy(isp->isp_osinfo.dmat, 518 isp->isp_osinfo.pcmd_pool[i].dmap); 519 } 520 goto bad; 521 } 522 callout_init_mtx(&pcmd->wdog, &isp->isp_osinfo.lock, 0); 523 if (i == isp->isp_maxcmds-1) { 524 pcmd->next = NULL; 525 } else { 526 pcmd->next = &isp->isp_osinfo.pcmd_pool[i+1]; 527 } 528 } 529 isp->isp_osinfo.pcmd_free = &isp->isp_osinfo.pcmd_pool[0]; 530 531 im.isp = isp; 532 im.error = 0; 533 bus_dmamap_load(isp->isp_osinfo.cdmat, isp->isp_osinfo.cdmap, base, len, imc, &im, 0); 534 if (im.error) { 535 isp_prt(isp, ISP_LOGERR, 536 "error %d loading dma map for control areas", im.error); 537 goto bad; 538 } 539 540 isp->isp_rquest = base; 541 base += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); 542 isp->isp_result = base; 543 ISP_LOCK(isp); 544 return (0); 545 546 bad: 547 bus_dmamem_free(isp->isp_osinfo.cdmat, base, isp->isp_osinfo.cdmap); 548 bus_dma_tag_destroy(isp->isp_osinfo.cdmat); 549 free(isp->isp_xflist, M_DEVBUF); 550 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF); 551 isp->isp_rquest = NULL; 552 ISP_LOCK(isp); 553 return (1); 554 } 555 556 typedef struct { 557 ispsoftc_t *isp; 558 void *cmd_token; 559 void *rq; /* original request */ 560 int error; 561 bus_size_t mapsize; 562 } mush_t; 563 564 #define MUSHERR_NOQENTRIES -2 565 566 static void dma2(void *, bus_dma_segment_t *, int, int); 567 568 static void 569 dma2(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error) 570 { 571 mush_t *mp; 572 ispsoftc_t *isp; 573 struct ccb_scsiio *csio; 574 isp_ddir_t ddir; 575 ispreq_t *rq; 576 577 mp = (mush_t *) arg; 578 if (error) { 579 mp->error = error; 580 return; 581 } 582 csio = mp->cmd_token; 583 isp = mp->isp; 584 rq = mp->rq; 585 if (nseg) { 586 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 587 bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREREAD); 588 ddir = ISP_FROM_DEVICE; 589 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 590 bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREWRITE); 591 ddir = ISP_TO_DEVICE; 592 } else { 593 ddir = ISP_NOXFR; 594 } 595 } else { 596 dm_segs = NULL; 597 nseg = 0; 598 ddir = ISP_NOXFR; 599 } 600 601 if (isp_send_cmd(isp, rq, dm_segs, nseg, XS_XFRLEN(csio), ddir) != CMD_QUEUED) { 602 mp->error = MUSHERR_NOQENTRIES; 603 } 604 } 605 606 static int 607 isp_sbus_dmasetup(ispsoftc_t *isp, struct ccb_scsiio *csio, void *ff) 608 { 609 mush_t mush, *mp; 610 void (*eptr)(void *, bus_dma_segment_t *, int, int); 611 612 mp = &mush; 613 mp->isp = isp; 614 mp->cmd_token = csio; 615 mp->rq = ff; 616 mp->error = 0; 617 mp->mapsize = 0; 618 619 eptr = dma2; 620 621 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_NONE || (csio->dxfer_len == 0)) { 622 (*eptr)(mp, NULL, 0, 0); 623 } else if ((csio->ccb_h.flags & CAM_SCATTER_VALID) == 0) { 624 if ((csio->ccb_h.flags & CAM_DATA_PHYS) == 0) { 625 int error; 626 error = bus_dmamap_load(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, csio->data_ptr, csio->dxfer_len, eptr, mp, 0); 627 #if 0 628 xpt_print(csio->ccb_h.path, "%s: bus_dmamap_load " "ptr %p len %d returned %d\n", __func__, csio->data_ptr, csio->dxfer_len, error); 629 #endif 630 631 if (error == EINPROGRESS) { 632 bus_dmamap_unload(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap); 633 mp->error = EINVAL; 634 isp_prt(isp, ISP_LOGERR, "deferred dma allocation not supported"); 635 } else if (error && mp->error == 0) { 636 #ifdef DIAGNOSTIC 637 isp_prt(isp, ISP_LOGERR, "error %d in dma mapping code", error); 638 #endif 639 mp->error = error; 640 } 641 } else { 642 /* Pointer to physical buffer */ 643 struct bus_dma_segment seg; 644 seg.ds_addr = (bus_addr_t)(vm_offset_t)csio->data_ptr; 645 seg.ds_len = csio->dxfer_len; 646 (*eptr)(mp, &seg, 1, 0); 647 } 648 } else { 649 struct bus_dma_segment *segs; 650 651 if ((csio->ccb_h.flags & CAM_DATA_PHYS) != 0) { 652 isp_prt(isp, ISP_LOGERR, "Physical segment pointers unsupported"); 653 mp->error = EINVAL; 654 } else if ((csio->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) { 655 isp_prt(isp, ISP_LOGERR, "Physical SG/LIST Phys segment pointers unsupported"); 656 mp->error = EINVAL; 657 } else { 658 /* Just use the segments provided */ 659 segs = (struct bus_dma_segment *) csio->data_ptr; 660 (*eptr)(mp, segs, csio->sglist_cnt, 0); 661 } 662 } 663 if (mp->error) { 664 int retval = CMD_COMPLETE; 665 if (mp->error == MUSHERR_NOQENTRIES) { 666 retval = CMD_EAGAIN; 667 } else if (mp->error == EFBIG) { 668 XS_SETERR(csio, CAM_REQ_TOO_BIG); 669 } else if (mp->error == EINVAL) { 670 XS_SETERR(csio, CAM_REQ_INVALID); 671 } else { 672 XS_SETERR(csio, CAM_UNREC_HBA_ERROR); 673 } 674 return (retval); 675 } 676 return (CMD_QUEUED); 677 } 678 679 static void 680 isp_sbus_reset0(ispsoftc_t *isp) 681 { 682 ISP_DISABLE_INTS(isp); 683 } 684 685 static void 686 isp_sbus_reset1(ispsoftc_t *isp) 687 { 688 ISP_ENABLE_INTS(isp); 689 } 690 691 static void 692 isp_sbus_dumpregs(ispsoftc_t *isp, const char *msg) 693 { 694 if (msg) 695 printf("%s: %s\n", device_get_nameunit(isp->isp_dev), msg); 696 else 697 printf("%s:\n", device_get_nameunit(isp->isp_dev)); 698 printf(" biu_conf1=%x", ISP_READ(isp, BIU_CONF1)); 699 printf(" biu_icr=%x biu_isr=%x biu_sema=%x ", ISP_READ(isp, BIU_ICR), 700 ISP_READ(isp, BIU_ISR), ISP_READ(isp, BIU_SEMA)); 701 printf("risc_hccr=%x\n", ISP_READ(isp, HCCR)); 702 703 704 ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE); 705 printf(" cdma_conf=%x cdma_sts=%x cdma_fifostat=%x\n", 706 ISP_READ(isp, CDMA_CONF), ISP_READ(isp, CDMA_STATUS), 707 ISP_READ(isp, CDMA_FIFO_STS)); 708 printf(" ddma_conf=%x ddma_sts=%x ddma_fifostat=%x\n", 709 ISP_READ(isp, DDMA_CONF), ISP_READ(isp, DDMA_STATUS), 710 ISP_READ(isp, DDMA_FIFO_STS)); 711 printf(" sxp_int=%x sxp_gross=%x sxp(scsi_ctrl)=%x\n", 712 ISP_READ(isp, SXP_INTERRUPT), 713 ISP_READ(isp, SXP_GROSS_ERR), 714 ISP_READ(isp, SXP_PINS_CTRL)); 715 ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE); 716 printf(" mbox regs: %x %x %x %x %x\n", 717 ISP_READ(isp, OUTMAILBOX0), ISP_READ(isp, OUTMAILBOX1), 718 ISP_READ(isp, OUTMAILBOX2), ISP_READ(isp, OUTMAILBOX3), 719 ISP_READ(isp, OUTMAILBOX4)); 720 } 721