isp_sbus.c revision 203444
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: head/sys/dev/isp/isp_sbus.c 203444 2010-02-03 21:09:32Z mjacob $"); 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 45#include <machine/bus.h> 46#include <machine/resource.h> 47#include <sys/rman.h> 48#include <sparc64/sbus/sbusvar.h> 49 50#include <dev/isp/isp_freebsd.h> 51 52static uint32_t isp_sbus_rd_reg(ispsoftc_t *, int); 53static void isp_sbus_wr_reg(ispsoftc_t *, int, uint32_t); 54static int isp_sbus_rd_isr(ispsoftc_t *, uint32_t *, uint16_t *, uint16_t *); 55static int isp_sbus_mbxdma(ispsoftc_t *); 56static int isp_sbus_dmasetup(ispsoftc_t *, XS_T *, void *); 57 58 59static void isp_sbus_reset0(ispsoftc_t *); 60static void isp_sbus_reset1(ispsoftc_t *); 61static void isp_sbus_dumpregs(ispsoftc_t *, const char *); 62 63static struct ispmdvec mdvec = { 64 isp_sbus_rd_isr, 65 isp_sbus_rd_reg, 66 isp_sbus_wr_reg, 67 isp_sbus_mbxdma, 68 isp_sbus_dmasetup, 69 isp_common_dmateardown, 70 isp_sbus_reset0, 71 isp_sbus_reset1, 72 isp_sbus_dumpregs, 73 NULL, 74 BIU_BURST_ENABLE|BIU_PCI_CONF1_FIFO_64 75}; 76 77static int isp_sbus_probe (device_t); 78static int isp_sbus_attach (device_t); 79 80 81#define ISP_SBD(isp) ((struct isp_sbussoftc *)isp)->sbus_dev 82struct isp_sbussoftc { 83 ispsoftc_t sbus_isp; 84 device_t sbus_dev; 85 struct resource * sbus_reg; 86 void * ih; 87 int16_t sbus_poff[_NREG_BLKS]; 88 sdparam sbus_param; 89 struct isp_spi sbus_spi; 90 struct ispmdvec sbus_mdvec; 91 struct resource * sbus_ires; 92}; 93 94 95static device_method_t isp_sbus_methods[] = { 96 /* Device interface */ 97 DEVMETHOD(device_probe, isp_sbus_probe), 98 DEVMETHOD(device_attach, isp_sbus_attach), 99 { 0, 0 } 100}; 101 102static driver_t isp_sbus_driver = { 103 "isp", isp_sbus_methods, sizeof (struct isp_sbussoftc) 104}; 105static devclass_t isp_devclass; 106DRIVER_MODULE(isp, sbus, isp_sbus_driver, isp_devclass, 0, 0); 107 108static int 109isp_sbus_probe(device_t dev) 110{ 111 int found = 0; 112 const char *name = ofw_bus_get_name(dev); 113 if (strcmp(name, "SUNW,isp") == 0 || 114 strcmp(name, "QLGC,isp") == 0 || 115 strcmp(name, "ptisp") == 0 || 116 strcmp(name, "PTI,ptisp") == 0) { 117 found++; 118 } 119 if (!found) 120 return (ENXIO); 121 122 if (isp_announced == 0 && bootverbose) { 123 printf("Qlogic ISP Driver, FreeBSD Version %d.%d, " 124 "Core Version %d.%d\n", 125 ISP_PLATFORM_VERSION_MAJOR, ISP_PLATFORM_VERSION_MINOR, 126 ISP_CORE_VERSION_MAJOR, ISP_CORE_VERSION_MINOR); 127 isp_announced++; 128 } 129 return (0); 130} 131 132static int 133isp_sbus_attach(device_t dev) 134{ 135 struct resource *regs; 136 int tval, iqd, isp_debug, role, rid, ispburst, default_id; 137 struct isp_sbussoftc *sbs; 138 ispsoftc_t *isp = NULL; 139 int locksetup = 0; 140 int ints_setup = 0; 141 142 /* 143 * Figure out if we're supposed to skip this one. 144 * If we are, we actually go to ISP_ROLE_NONE. 145 */ 146 147 tval = 0; 148 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 149 "disable", &tval) == 0 && tval) { 150 device_printf(dev, "device is disabled\n"); 151 /* but return 0 so the !$)$)*!$*) unit isn't reused */ 152 return (0); 153 } 154 155 role = 0; 156 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 157 "role", &role) == 0 && 158 ((role & ~(ISP_ROLE_INITIATOR|ISP_ROLE_TARGET)) == 0)) { 159 device_printf(dev, "setting role to 0x%x\n", role); 160 } else { 161 role = ISP_DEFAULT_ROLES; 162 } 163 164 sbs = malloc(sizeof (*sbs), M_DEVBUF, M_NOWAIT | M_ZERO); 165 if (sbs == NULL) { 166 device_printf(dev, "cannot allocate softc\n"); 167 return (ENOMEM); 168 } 169 170 regs = NULL; 171 iqd = 0; 172 rid = 0; 173 regs = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE); 174 if (regs == 0) { 175 device_printf(dev, "unable to map registers\n"); 176 goto bad; 177 } 178 sbs->sbus_dev = dev; 179 sbs->sbus_reg = regs; 180 sbs->sbus_mdvec = mdvec; 181 182 sbs->sbus_poff[BIU_BLOCK >> _BLK_REG_SHFT] = BIU_REGS_OFF; 183 sbs->sbus_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = SBUS_MBOX_REGS_OFF; 184 sbs->sbus_poff[SXP_BLOCK >> _BLK_REG_SHFT] = SBUS_SXP_REGS_OFF; 185 sbs->sbus_poff[RISC_BLOCK >> _BLK_REG_SHFT] = SBUS_RISC_REGS_OFF; 186 sbs->sbus_poff[DMA_BLOCK >> _BLK_REG_SHFT] = DMA_REGS_OFF; 187 isp = &sbs->sbus_isp; 188 isp->isp_bus_tag = rman_get_bustag(regs); 189 isp->isp_bus_handle = rman_get_bushandle(regs); 190 isp->isp_mdvec = &sbs->sbus_mdvec; 191 isp->isp_bustype = ISP_BT_SBUS; 192 isp->isp_type = ISP_HA_SCSI_UNKNOWN; 193 isp->isp_param = &sbs->sbus_param; 194 isp->isp_osinfo.pc.ptr = &sbs->sbus_spi; 195 isp->isp_revision = 0; /* XXX */ 196 isp->isp_dev = dev; 197 isp->isp_nchan = 1; 198 ISP_SET_PC(isp, 0, role, role); 199 200 /* 201 * Get the clock frequency and convert it from HZ to MHz, 202 * rounding up. This defaults to 25MHz if there isn't a 203 * device specific one in the OFW device tree. 204 */ 205 sbs->sbus_mdvec.dv_clock = (sbus_get_clockfreq(dev) + 500000)/1000000; 206 207 /* 208 * Now figure out what the proper burst sizes, etc., to use. 209 * Unfortunately, there is no ddi_dma_burstsizes here which 210 * walks up the tree finding the limiting burst size node (if 211 * any). We just use what's here for isp. 212 */ 213 ispburst = sbus_get_burstsz(dev); 214 if (ispburst == 0) { 215 ispburst = SBUS_BURST_32 - 1; 216 } 217 sbs->sbus_mdvec.dv_conf1 = 0; 218 if (ispburst & (1 << 5)) { 219 sbs->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_32; 220 } else if (ispburst & (1 << 4)) { 221 sbs->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_16; 222 } else if (ispburst & (1 << 3)) { 223 sbs->sbus_mdvec.dv_conf1 = 224 BIU_SBUS_CONF1_BURST8 | BIU_SBUS_CONF1_FIFO_8; 225 } 226 if (sbs->sbus_mdvec.dv_conf1) { 227 sbs->sbus_mdvec.dv_conf1 |= BIU_BURST_ENABLE; 228 } 229 230 /* 231 * We don't trust NVRAM on SBus cards 232 */ 233 isp->isp_confopts |= ISP_CFG_NONVRAM; 234 235 /* 236 * Mark things if we're a PTI SBus adapter. 237 */ 238 if (strcmp("PTI,ptisp", ofw_bus_get_name(dev)) == 0 || 239 strcmp("ptisp", ofw_bus_get_name(dev)) == 0) { 240 SDPARAM(isp, 0)->isp_ptisp = 1; 241 } 242 243 244 isp->isp_osinfo.fw = firmware_get("isp_1000"); 245 if (isp->isp_osinfo.fw) { 246 union { 247 const void *cp; 248 uint16_t *sp; 249 } stupid; 250 stupid.cp = isp->isp_osinfo.fw->data; 251 isp->isp_mdvec->dv_ispfw = stupid.sp; 252 } 253 254 tval = 0; 255 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 256 "fwload_disable", &tval) == 0 && tval != 0) { 257 isp->isp_confopts |= ISP_CFG_NORELOAD; 258 } 259 260 default_id = -1; 261 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 262 "iid", &tval) == 0) { 263 default_id = tval; 264 isp->isp_confopts |= ISP_CFG_OWNLOOPID; 265 } 266 if (default_id == -1) { 267 /* 268 * XXX: should be a way to get properties w/o having 269 * XXX: to call OF_xxx functions 270 */ 271 default_id = 7; 272 } 273 ISP_SPI_PC(isp, 0)->iid = default_id; 274 275 isp_debug = 0; 276 (void) resource_int_value(device_get_name(dev), device_get_unit(dev), 277 "debug", &isp_debug); 278 279 /* Make sure the lock is set up. */ 280 mtx_init(&isp->isp_osinfo.lock, "isp", NULL, MTX_DEF); 281 locksetup++; 282 283 iqd = 0; 284 sbs->sbus_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd, 285 RF_ACTIVE | RF_SHAREABLE); 286 if (sbs->sbus_ires == NULL) { 287 device_printf(dev, "could not allocate interrupt\n"); 288 goto bad; 289 } 290 291 if (isp_setup_intr(dev, sbs->sbus_ires, ISP_IFLAGS, NULL, 292 isp_platform_intr, isp, &sbs->ih)) { 293 device_printf(dev, "could not setup interrupt\n"); 294 goto bad; 295 } 296 ints_setup++; 297 298 /* 299 * Set up logging levels. 300 */ 301 if (isp_debug) { 302 isp->isp_dblev = isp_debug; 303 } else { 304 isp->isp_dblev = ISP_LOGWARN|ISP_LOGERR; 305 } 306 if (bootverbose) { 307 isp->isp_dblev |= ISP_LOGCONFIG|ISP_LOGINFO; 308 } 309 310 /* 311 * Make sure we're in reset state. 312 */ 313 ISP_LOCK(isp); 314 isp_reset(isp, 1); 315 if (isp->isp_state != ISP_RESETSTATE) { 316 isp_uninit(isp); 317 ISP_UNLOCK(isp); 318 goto bad; 319 } 320 isp_init(isp); 321 if (isp->isp_state == ISP_INITSTATE) { 322 isp->isp_state = ISP_RUNSTATE; 323 } 324 ISP_UNLOCK(isp); 325 if (isp_attach(isp)) { 326 ISP_LOCK(isp); 327 isp_uninit(isp); 328 ISP_UNLOCK(isp); 329 goto bad; 330 } 331 return (0); 332 333bad: 334 335 if (sbs && ints_setup) { 336 (void) bus_teardown_intr(dev, sbs->sbus_ires, sbs->ih); 337 } 338 339 if (sbs && sbs->sbus_ires) { 340 bus_release_resource(dev, SYS_RES_IRQ, iqd, sbs->sbus_ires); 341 } 342 343 if (locksetup && isp) { 344 mtx_destroy(&isp->isp_osinfo.lock); 345 } 346 347 if (regs) { 348 (void) bus_release_resource(dev, SYS_RES_MEMORY, 0, regs); 349 } 350 351 if (sbs) { 352 free(sbs, M_DEVBUF); 353 } 354 return (ENXIO); 355} 356 357#define IspVirt2Off(a, x) \ 358 (((struct isp_sbussoftc *)a)->sbus_poff[((x) & _BLK_REG_MASK) >> \ 359 _BLK_REG_SHFT] + ((x) & 0xff)) 360 361#define BXR2(sbc, off) \ 362 bus_space_read_2(isp->isp_bus_tag, isp->isp_bus_handle, off) 363 364static int 365isp_sbus_rd_isr(ispsoftc_t *isp, uint32_t *isrp, uint16_t *semap, uint16_t *mbp) 366{ 367 uint16_t isr, sema; 368 369 isr = BXR2(sbc, IspVirt2Off(isp, BIU_ISR)); 370 sema = BXR2(sbc, IspVirt2Off(isp, BIU_SEMA)); 371 isp_prt(isp, ISP_LOGDEBUG3, "ISR 0x%x SEMA 0x%x", isr, sema); 372 isr &= INT_PENDING_MASK(isp); 373 sema &= BIU_SEMA_LOCK; 374 if (isr == 0 && sema == 0) { 375 return (0); 376 } 377 *isrp = isr; 378 if ((*semap = sema) != 0) { 379 *mbp = BXR2(sbc, IspVirt2Off(isp, OUTMAILBOX0)); 380 } 381 return (1); 382} 383 384static uint32_t 385isp_sbus_rd_reg(ispsoftc_t *isp, int regoff) 386{ 387 uint16_t rval; 388 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp; 389 int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; 390 offset += (regoff & 0xff); 391 rval = bus_space_read_2(isp->isp_bus_tag, isp->isp_bus_handle, offset); 392 isp_prt(isp, ISP_LOGDEBUG3, 393 "isp_sbus_rd_reg(off %x) = %x", regoff, rval); 394 return (rval); 395} 396 397static void 398isp_sbus_wr_reg(ispsoftc_t *isp, int regoff, uint32_t val) 399{ 400 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp; 401 int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; 402 offset += (regoff & 0xff); 403 isp_prt(isp, ISP_LOGDEBUG3, 404 "isp_sbus_wr_reg(off %x) = %x", regoff, val); 405 bus_space_write_2(isp->isp_bus_tag, isp->isp_bus_handle, offset, val); 406 MEMORYBARRIER(isp, SYNC_REG, offset, 2); 407} 408 409struct imush { 410 ispsoftc_t *isp; 411 int error; 412}; 413 414static void imc(void *, bus_dma_segment_t *, int, int); 415 416static void 417imc(void *arg, bus_dma_segment_t *segs, int nseg, int error) 418{ 419 struct imush *imushp = (struct imush *) arg; 420 if (error) { 421 imushp->error = error; 422 } else { 423 ispsoftc_t *isp =imushp->isp; 424 bus_addr_t addr = segs->ds_addr; 425 426 isp->isp_rquest_dma = addr; 427 addr += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); 428 isp->isp_result_dma = addr; 429 } 430} 431 432static int 433isp_sbus_mbxdma(ispsoftc_t *isp) 434{ 435 caddr_t base; 436 uint32_t len; 437 int i, error, ns; 438 struct imush im; 439 440 /* 441 * Already been here? If so, leave... 442 */ 443 if (isp->isp_rquest) { 444 return (0); 445 } 446 447 ISP_UNLOCK(isp); 448 449 len = sizeof (struct isp_pcmd) * isp->isp_maxcmds; 450 isp->isp_osinfo.pcmd_pool = (struct isp_pcmd *) 451 malloc(len, M_DEVBUF, M_WAITOK | M_ZERO); 452 if (isp->isp_osinfo.pcmd_pool == NULL) { 453 isp_prt(isp, ISP_LOGERR, "cannot alloc pcmd pool"); 454 ISP_LOCK(isp); 455 return (1); 456 } 457 458 len = sizeof (isp_hdl_t *) * isp->isp_maxcmds; 459 isp->isp_xflist = (isp_hdl_t *) malloc(len, M_DEVBUF, M_WAITOK | M_ZERO); 460 if (isp->isp_xflist == NULL) { 461 isp_prt(isp, ISP_LOGERR, "cannot alloc xflist array"); 462 ISP_LOCK(isp); 463 return (1); 464 } 465 for (len = 0; len < isp->isp_maxcmds - 1; len++) { 466 isp->isp_xflist[len].cmd = &isp->isp_xflist[len+1]; 467 } 468 isp->isp_xffree = isp->isp_xflist; 469 len = sizeof (bus_dmamap_t) * isp->isp_maxcmds; 470 471 if (isp_dma_tag_create(BUS_DMA_ROOTARG(ISP_SBD(isp)), 1, 472 BUS_SPACE_MAXADDR_24BIT+1, BUS_SPACE_MAXADDR_32BIT, 473 BUS_SPACE_MAXADDR_32BIT, NULL, NULL, BUS_SPACE_MAXSIZE_32BIT, 474 ISP_NSEGS, BUS_SPACE_MAXADDR_24BIT, 0, &isp->isp_osinfo.dmat)) { 475 isp_prt(isp, ISP_LOGERR, "could not create master dma tag"); 476 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF); 477 free(isp->isp_xflist, M_DEVBUF); 478 ISP_LOCK(isp); 479 return(1); 480 } 481 482 /* 483 * Allocate and map the request, result queues, plus FC scratch area. 484 */ 485 len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); 486 len += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp)); 487 488 ns = (len / PAGE_SIZE) + 1; 489 if (isp_dma_tag_create(isp->isp_osinfo.dmat, QENTRY_LEN, 490 BUS_SPACE_MAXADDR_24BIT+1, BUS_SPACE_MAXADDR_32BIT, 491 BUS_SPACE_MAXADDR_32BIT, NULL, NULL, len, ns, 492 BUS_SPACE_MAXADDR_24BIT, 0, &isp->isp_osinfo.cdmat)) { 493 isp_prt(isp, ISP_LOGERR, 494 "cannot create a dma tag for control spaces"); 495 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF); 496 free(isp->isp_xflist, M_DEVBUF); 497 ISP_LOCK(isp); 498 return (1); 499 } 500 501 if (bus_dmamem_alloc(isp->isp_osinfo.cdmat, (void **)&base, BUS_DMA_NOWAIT, 502 &isp->isp_osinfo.cdmap) != 0) { 503 isp_prt(isp, ISP_LOGERR, 504 "cannot allocate %d bytes of CCB memory", len); 505 bus_dma_tag_destroy(isp->isp_osinfo.cdmat); 506 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF); 507 free(isp->isp_xflist, M_DEVBUF); 508 ISP_LOCK(isp); 509 return (1); 510 } 511 512 for (i = 0; i < isp->isp_maxcmds; i++) { 513 struct isp_pcmd *pcmd = &isp->isp_osinfo.pcmd_pool[i]; 514 error = bus_dmamap_create(isp->isp_osinfo.dmat, 0, &pcmd->dmap); 515 if (error) { 516 isp_prt(isp, ISP_LOGERR, 517 "error %d creating per-cmd DMA maps", error); 518 while (--i >= 0) { 519 bus_dmamap_destroy(isp->isp_osinfo.dmat, 520 isp->isp_osinfo.pcmd_pool[i].dmap); 521 } 522 goto bad; 523 } 524 callout_init_mtx(&pcmd->wdog, &isp->isp_osinfo.lock, 0); 525 if (i == isp->isp_maxcmds-1) { 526 pcmd->next = NULL; 527 } else { 528 pcmd->next = &isp->isp_osinfo.pcmd_pool[i+1]; 529 } 530 } 531 isp->isp_osinfo.pcmd_free = &isp->isp_osinfo.pcmd_pool[0]; 532 533 im.isp = isp; 534 im.error = 0; 535 bus_dmamap_load(isp->isp_osinfo.cdmat, isp->isp_osinfo.cdmap, base, len, imc, &im, 0); 536 if (im.error) { 537 isp_prt(isp, ISP_LOGERR, 538 "error %d loading dma map for control areas", im.error); 539 goto bad; 540 } 541 542 isp->isp_rquest = base; 543 base += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); 544 isp->isp_result = base; 545 ISP_LOCK(isp); 546 return (0); 547 548bad: 549 bus_dmamem_free(isp->isp_osinfo.cdmat, base, isp->isp_osinfo.cdmap); 550 bus_dma_tag_destroy(isp->isp_osinfo.cdmat); 551 free(isp->isp_xflist, M_DEVBUF); 552 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF); 553 isp->isp_rquest = NULL; 554 ISP_LOCK(isp); 555 return (1); 556} 557 558typedef struct { 559 ispsoftc_t *isp; 560 void *cmd_token; 561 void *rq; /* original request */ 562 int error; 563 bus_size_t mapsize; 564} mush_t; 565 566#define MUSHERR_NOQENTRIES -2 567 568static void dma2(void *, bus_dma_segment_t *, int, int); 569 570static void 571dma2(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error) 572{ 573 mush_t *mp; 574 ispsoftc_t *isp; 575 struct ccb_scsiio *csio; 576 isp_ddir_t ddir; 577 ispreq_t *rq; 578 579 mp = (mush_t *) arg; 580 if (error) { 581 mp->error = error; 582 return; 583 } 584 csio = mp->cmd_token; 585 isp = mp->isp; 586 rq = mp->rq; 587 if (nseg) { 588 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 589 bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREREAD); 590 ddir = ISP_FROM_DEVICE; 591 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 592 bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREWRITE); 593 ddir = ISP_TO_DEVICE; 594 } else { 595 ddir = ISP_NOXFR; 596 } 597 } else { 598 dm_segs = NULL; 599 nseg = 0; 600 ddir = ISP_NOXFR; 601 } 602 603 if (isp_send_cmd(isp, rq, dm_segs, nseg, XS_XFRLEN(csio), ddir) != CMD_QUEUED) { 604 mp->error = MUSHERR_NOQENTRIES; 605 } 606} 607 608static int 609isp_sbus_dmasetup(ispsoftc_t *isp, struct ccb_scsiio *csio, void *ff) 610{ 611 mush_t mush, *mp; 612 void (*eptr)(void *, bus_dma_segment_t *, int, int); 613 614 mp = &mush; 615 mp->isp = isp; 616 mp->cmd_token = csio; 617 mp->rq = ff; 618 mp->error = 0; 619 mp->mapsize = 0; 620 621 eptr = dma2; 622 623 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_NONE || (csio->dxfer_len == 0)) { 624 (*eptr)(mp, NULL, 0, 0); 625 } else if ((csio->ccb_h.flags & CAM_SCATTER_VALID) == 0) { 626 if ((csio->ccb_h.flags & CAM_DATA_PHYS) == 0) { 627 int error; 628 error = bus_dmamap_load(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, csio->data_ptr, csio->dxfer_len, eptr, mp, 0); 629#if 0 630 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); 631#endif 632 633 if (error == EINPROGRESS) { 634 bus_dmamap_unload(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap); 635 mp->error = EINVAL; 636 isp_prt(isp, ISP_LOGERR, "deferred dma allocation not supported"); 637 } else if (error && mp->error == 0) { 638#ifdef DIAGNOSTIC 639 isp_prt(isp, ISP_LOGERR, "error %d in dma mapping code", error); 640#endif 641 mp->error = error; 642 } 643 } else { 644 /* Pointer to physical buffer */ 645 struct bus_dma_segment seg; 646 seg.ds_addr = (bus_addr_t)(vm_offset_t)csio->data_ptr; 647 seg.ds_len = csio->dxfer_len; 648 (*eptr)(mp, &seg, 1, 0); 649 } 650 } else { 651 struct bus_dma_segment *segs; 652 653 if ((csio->ccb_h.flags & CAM_DATA_PHYS) != 0) { 654 isp_prt(isp, ISP_LOGERR, "Physical segment pointers unsupported"); 655 mp->error = EINVAL; 656 } else if ((csio->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) { 657 isp_prt(isp, ISP_LOGERR, "Physical SG/LIST Phys segment pointers unsupported"); 658 mp->error = EINVAL; 659 } else { 660 /* Just use the segments provided */ 661 segs = (struct bus_dma_segment *) csio->data_ptr; 662 (*eptr)(mp, segs, csio->sglist_cnt, 0); 663 } 664 } 665 if (mp->error) { 666 int retval = CMD_COMPLETE; 667 if (mp->error == MUSHERR_NOQENTRIES) { 668 retval = CMD_EAGAIN; 669 } else if (mp->error == EFBIG) { 670 XS_SETERR(csio, CAM_REQ_TOO_BIG); 671 } else if (mp->error == EINVAL) { 672 XS_SETERR(csio, CAM_REQ_INVALID); 673 } else { 674 XS_SETERR(csio, CAM_UNREC_HBA_ERROR); 675 } 676 return (retval); 677 } 678 return (CMD_QUEUED); 679} 680 681static void 682isp_sbus_reset0(ispsoftc_t *isp) 683{ 684 ISP_DISABLE_INTS(isp); 685} 686 687static void 688isp_sbus_reset1(ispsoftc_t *isp) 689{ 690 ISP_ENABLE_INTS(isp); 691} 692 693static void 694isp_sbus_dumpregs(ispsoftc_t *isp, const char *msg) 695{ 696 if (msg) 697 printf("%s: %s\n", device_get_nameunit(isp->isp_dev), msg); 698 else 699 printf("%s:\n", device_get_nameunit(isp->isp_dev)); 700 printf(" biu_conf1=%x", ISP_READ(isp, BIU_CONF1)); 701 printf(" biu_icr=%x biu_isr=%x biu_sema=%x ", ISP_READ(isp, BIU_ICR), 702 ISP_READ(isp, BIU_ISR), ISP_READ(isp, BIU_SEMA)); 703 printf("risc_hccr=%x\n", ISP_READ(isp, HCCR)); 704 705 706 ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE); 707 printf(" cdma_conf=%x cdma_sts=%x cdma_fifostat=%x\n", 708 ISP_READ(isp, CDMA_CONF), ISP_READ(isp, CDMA_STATUS), 709 ISP_READ(isp, CDMA_FIFO_STS)); 710 printf(" ddma_conf=%x ddma_sts=%x ddma_fifostat=%x\n", 711 ISP_READ(isp, DDMA_CONF), ISP_READ(isp, DDMA_STATUS), 712 ISP_READ(isp, DDMA_FIFO_STS)); 713 printf(" sxp_int=%x sxp_gross=%x sxp(scsi_ctrl)=%x\n", 714 ISP_READ(isp, SXP_INTERRUPT), 715 ISP_READ(isp, SXP_GROSS_ERR), 716 ISP_READ(isp, SXP_PINS_CTRL)); 717 ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE); 718 printf(" mbox regs: %x %x %x %x %x\n", 719 ISP_READ(isp, OUTMAILBOX0), ISP_READ(isp, OUTMAILBOX1), 720 ISP_READ(isp, OUTMAILBOX2), ISP_READ(isp, OUTMAILBOX3), 721 ISP_READ(isp, OUTMAILBOX4)); 722} 723