isp_sbus.c revision 289930
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 289930 2015-10-25 10:49:05Z mav $"); 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 54static uint32_t isp_sbus_rd_reg(ispsoftc_t *, int); 55static void isp_sbus_wr_reg(ispsoftc_t *, int, uint32_t); 56static int isp_sbus_rd_isr(ispsoftc_t *, uint16_t *, uint16_t *, uint16_t *); 57static int isp_sbus_mbxdma(ispsoftc_t *); 58static int isp_sbus_dmasetup(ispsoftc_t *, XS_T *, void *); 59 60 61static void isp_sbus_reset0(ispsoftc_t *); 62static void isp_sbus_reset1(ispsoftc_t *); 63static void isp_sbus_dumpregs(ispsoftc_t *, const char *); 64 65static 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 79static int isp_sbus_probe (device_t); 80static int isp_sbus_attach (device_t); 81static int isp_sbus_detach (device_t); 82 83 84#define ISP_SBD(isp) ((struct isp_sbussoftc *)isp)->sbus_dev 85struct isp_sbussoftc { 86 ispsoftc_t sbus_isp; 87 device_t sbus_dev; 88 struct resource * regs; 89 void * irq; 90 int iqd; 91 int rgd; 92 void * ih; 93 int16_t sbus_poff[_NREG_BLKS]; 94 sdparam sbus_param; 95 struct isp_spi sbus_spi; 96 struct ispmdvec sbus_mdvec; 97}; 98 99 100static device_method_t isp_sbus_methods[] = { 101 /* Device interface */ 102 DEVMETHOD(device_probe, isp_sbus_probe), 103 DEVMETHOD(device_attach, isp_sbus_attach), 104 DEVMETHOD(device_detach, isp_sbus_detach), 105 { 0, 0 } 106}; 107 108static driver_t isp_sbus_driver = { 109 "isp", isp_sbus_methods, sizeof (struct isp_sbussoftc) 110}; 111static devclass_t isp_devclass; 112DRIVER_MODULE(isp, sbus, isp_sbus_driver, isp_devclass, 0, 0); 113MODULE_DEPEND(isp, cam, 1, 1, 1); 114MODULE_DEPEND(isp, firmware, 1, 1, 1); 115 116static int 117isp_sbus_probe(device_t dev) 118{ 119 int found = 0; 120 const char *name = ofw_bus_get_name(dev); 121 if (strcmp(name, "SUNW,isp") == 0 || 122 strcmp(name, "QLGC,isp") == 0 || 123 strcmp(name, "ptisp") == 0 || 124 strcmp(name, "PTI,ptisp") == 0) { 125 found++; 126 } 127 if (!found) 128 return (ENXIO); 129 130 if (isp_announced == 0 && bootverbose) { 131 printf("Qlogic ISP Driver, FreeBSD Version %d.%d, " 132 "Core Version %d.%d\n", 133 ISP_PLATFORM_VERSION_MAJOR, ISP_PLATFORM_VERSION_MINOR, 134 ISP_CORE_VERSION_MAJOR, ISP_CORE_VERSION_MINOR); 135 isp_announced++; 136 } 137 return (0); 138} 139 140static int 141isp_sbus_attach(device_t dev) 142{ 143 int tval, isp_debug, role, ispburst, default_id; 144 struct isp_sbussoftc *sbs; 145 ispsoftc_t *isp = NULL; 146 int locksetup = 0; 147 int ints_setup = 0; 148 149 sbs = device_get_softc(dev); 150 if (sbs == NULL) { 151 device_printf(dev, "cannot get softc\n"); 152 return (ENOMEM); 153 } 154 155 sbs->sbus_dev = dev; 156 sbs->sbus_mdvec = mdvec; 157 158 /* 159 * Figure out if we're supposed to skip this one. 160 * If we are, we actually go to ISP_ROLE_NONE. 161 */ 162 163 tval = 0; 164 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 165 "disable", &tval) == 0 && tval) { 166 device_printf(dev, "device is disabled\n"); 167 /* but return 0 so the !$)$)*!$*) unit isn't reused */ 168 return (0); 169 } 170 171 role = 0; 172 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 173 "role", &role) == 0 && 174 ((role & ~(ISP_ROLE_INITIATOR|ISP_ROLE_TARGET)) == 0)) { 175 device_printf(dev, "setting role to 0x%x\n", role); 176 } else { 177 role = ISP_DEFAULT_ROLES; 178 } 179 180 sbs->irq = sbs->regs = NULL; 181 sbs->rgd = sbs->iqd = 0; 182 183 sbs->regs = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sbs->rgd, 184 RF_ACTIVE); 185 if (sbs->regs == NULL) { 186 device_printf(dev, "unable to map registers\n"); 187 goto bad; 188 } 189 190 sbs->sbus_poff[BIU_BLOCK >> _BLK_REG_SHFT] = BIU_REGS_OFF; 191 sbs->sbus_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = SBUS_MBOX_REGS_OFF; 192 sbs->sbus_poff[SXP_BLOCK >> _BLK_REG_SHFT] = SBUS_SXP_REGS_OFF; 193 sbs->sbus_poff[RISC_BLOCK >> _BLK_REG_SHFT] = SBUS_RISC_REGS_OFF; 194 sbs->sbus_poff[DMA_BLOCK >> _BLK_REG_SHFT] = DMA_REGS_OFF; 195 isp = &sbs->sbus_isp; 196 isp->isp_bus_tag = rman_get_bustag(sbs->regs); 197 isp->isp_bus_handle = rman_get_bushandle(sbs->regs); 198 isp->isp_mdvec = &sbs->sbus_mdvec; 199 isp->isp_bustype = ISP_BT_SBUS; 200 isp->isp_type = ISP_HA_SCSI_UNKNOWN; 201 isp->isp_param = &sbs->sbus_param; 202 isp->isp_osinfo.pc.ptr = &sbs->sbus_spi; 203 isp->isp_revision = 0; /* XXX */ 204 isp->isp_dev = dev; 205 isp->isp_nchan = 1; 206 ISP_SET_PC(isp, 0, def_role, role); 207 208 /* 209 * Get the clock frequency and convert it from HZ to MHz, 210 * rounding up. This defaults to 25MHz if there isn't a 211 * device specific one in the OFW device tree. 212 */ 213 sbs->sbus_mdvec.dv_clock = (sbus_get_clockfreq(dev) + 500000)/1000000; 214 215 /* 216 * Now figure out what the proper burst sizes, etc., to use. 217 * Unfortunately, there is no ddi_dma_burstsizes here which 218 * walks up the tree finding the limiting burst size node (if 219 * any). We just use what's here for isp. 220 */ 221 ispburst = sbus_get_burstsz(dev); 222 if (ispburst == 0) { 223 ispburst = SBUS_BURST_32 - 1; 224 } 225 sbs->sbus_mdvec.dv_conf1 = 0; 226 if (ispburst & (1 << 5)) { 227 sbs->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_32; 228 } else if (ispburst & (1 << 4)) { 229 sbs->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_16; 230 } else if (ispburst & (1 << 3)) { 231 sbs->sbus_mdvec.dv_conf1 = 232 BIU_SBUS_CONF1_BURST8 | BIU_SBUS_CONF1_FIFO_8; 233 } 234 if (sbs->sbus_mdvec.dv_conf1) { 235 sbs->sbus_mdvec.dv_conf1 |= BIU_BURST_ENABLE; 236 } 237 238 /* 239 * We don't trust NVRAM on SBus cards 240 */ 241 isp->isp_confopts |= ISP_CFG_NONVRAM; 242 243 /* 244 * Mark things if we're a PTI SBus adapter. 245 */ 246 if (strcmp("PTI,ptisp", ofw_bus_get_name(dev)) == 0 || 247 strcmp("ptisp", ofw_bus_get_name(dev)) == 0) { 248 SDPARAM(isp, 0)->isp_ptisp = 1; 249 } 250 251 isp->isp_osinfo.fw = firmware_get("isp_1000"); 252 if (isp->isp_osinfo.fw) { 253 union { 254 const void *cp; 255 uint16_t *sp; 256 } stupid; 257 stupid.cp = isp->isp_osinfo.fw->data; 258 isp->isp_mdvec->dv_ispfw = stupid.sp; 259 } 260 261 tval = 0; 262 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 263 "fwload_disable", &tval) == 0 && tval != 0) { 264 isp->isp_confopts |= ISP_CFG_NORELOAD; 265 } 266 267 default_id = -1; 268 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 269 "iid", &tval) == 0) { 270 default_id = tval; 271 isp->isp_confopts |= ISP_CFG_OWNLOOPID; 272 } 273 if (default_id == -1) { 274 default_id = OF_getscsinitid(dev); 275 } 276 ISP_SPI_PC(isp, 0)->iid = default_id; 277 278 isp_debug = 0; 279 (void) resource_int_value(device_get_name(dev), device_get_unit(dev), 280 "debug", &isp_debug); 281 282 /* Make sure the lock is set up. */ 283 mtx_init(&isp->isp_osinfo.lock, "isp", NULL, MTX_DEF); 284 locksetup++; 285 286 sbs->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sbs->iqd, 287 RF_ACTIVE | RF_SHAREABLE); 288 if (sbs->irq == NULL) { 289 device_printf(dev, "could not allocate interrupt\n"); 290 goto bad; 291 } 292 293 if (isp_setup_intr(dev, sbs->irq, ISP_IFLAGS, NULL, isp_platform_intr, 294 isp, &sbs->ih)) { 295 device_printf(dev, "could not setup interrupt\n"); 296 goto bad; 297 } 298 ints_setup++; 299 300 /* 301 * Set up logging levels. 302 */ 303 if (isp_debug) { 304 isp->isp_dblev = isp_debug; 305 } else { 306 isp->isp_dblev = ISP_LOGWARN|ISP_LOGERR; 307 } 308 if (bootverbose) { 309 isp->isp_dblev |= ISP_LOGCONFIG|ISP_LOGINFO; 310 } 311 312 /* 313 * Make sure we're in reset state. 314 */ 315 ISP_LOCK(isp); 316 if (isp_reinit(isp, 1) != 0) { 317 isp_uninit(isp); 318 ISP_UNLOCK(isp); 319 goto bad; 320 } 321 ISP_UNLOCK(isp); 322 if (isp_attach(isp)) { 323 ISP_LOCK(isp); 324 isp_uninit(isp); 325 ISP_UNLOCK(isp); 326 goto bad; 327 } 328 return (0); 329 330bad: 331 332 if (sbs && ints_setup) { 333 (void) bus_teardown_intr(dev, sbs->irq, sbs->ih); 334 } 335 336 if (sbs && sbs->irq) { 337 bus_release_resource(dev, SYS_RES_IRQ, sbs->iqd, sbs->irq); 338 } 339 340 if (locksetup && isp) { 341 mtx_destroy(&isp->isp_osinfo.lock); 342 } 343 344 if (sbs->regs) { 345 (void) bus_release_resource(dev, SYS_RES_MEMORY, sbs->rgd, 346 sbs->regs); 347 } 348 return (ENXIO); 349} 350 351static int 352isp_sbus_detach(device_t dev) 353{ 354 struct isp_sbussoftc *sbs; 355 ispsoftc_t *isp; 356 int status; 357 358 sbs = device_get_softc(dev); 359 if (sbs == NULL) { 360 return (ENXIO); 361 } 362 isp = (ispsoftc_t *) sbs; 363 status = isp_detach(isp); 364 if (status) 365 return (status); 366 ISP_LOCK(isp); 367 isp_uninit(isp); 368 if (sbs->ih) { 369 (void) bus_teardown_intr(dev, sbs->irq, sbs->ih); 370 } 371 ISP_UNLOCK(isp); 372 mtx_destroy(&isp->isp_osinfo.lock); 373 (void) bus_release_resource(dev, SYS_RES_IRQ, sbs->iqd, sbs->irq); 374 (void) bus_release_resource(dev, SYS_RES_MEMORY, sbs->rgd, sbs->regs); 375 return (0); 376} 377 378#define IspVirt2Off(a, x) \ 379 (((struct isp_sbussoftc *)a)->sbus_poff[((x) & _BLK_REG_MASK) >> \ 380 _BLK_REG_SHFT] + ((x) & 0xff)) 381 382#define BXR2(sbc, off) \ 383 bus_space_read_2(isp->isp_bus_tag, isp->isp_bus_handle, off) 384 385static int 386isp_sbus_rd_isr(ispsoftc_t *isp, uint16_t *isrp, uint16_t *semap, uint16_t *info) 387{ 388 uint16_t isr, sema; 389 390 isr = BXR2(sbc, IspVirt2Off(isp, BIU_ISR)); 391 sema = BXR2(sbc, IspVirt2Off(isp, BIU_SEMA)); 392 isp_prt(isp, ISP_LOGDEBUG3, "ISR 0x%x SEMA 0x%x", isr, sema); 393 isr &= INT_PENDING_MASK(isp); 394 sema &= BIU_SEMA_LOCK; 395 if (isr == 0 && sema == 0) { 396 return (0); 397 } 398 *isrp = isr; 399 if ((*semap = sema) != 0) 400 *info = BXR2(sbc, IspVirt2Off(isp, OUTMAILBOX0)); 401 return (1); 402} 403 404static uint32_t 405isp_sbus_rd_reg(ispsoftc_t *isp, int regoff) 406{ 407 uint16_t rval; 408 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp; 409 int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; 410 offset += (regoff & 0xff); 411 rval = bus_space_read_2(isp->isp_bus_tag, isp->isp_bus_handle, offset); 412 isp_prt(isp, ISP_LOGDEBUG3, 413 "isp_sbus_rd_reg(off %x) = %x", regoff, rval); 414 return (rval); 415} 416 417static void 418isp_sbus_wr_reg(ispsoftc_t *isp, int regoff, uint32_t val) 419{ 420 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp; 421 int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; 422 offset += (regoff & 0xff); 423 isp_prt(isp, ISP_LOGDEBUG3, 424 "isp_sbus_wr_reg(off %x) = %x", regoff, val); 425 bus_space_write_2(isp->isp_bus_tag, isp->isp_bus_handle, offset, val); 426 MEMORYBARRIER(isp, SYNC_REG, offset, 2, -1); 427} 428 429struct imush { 430 ispsoftc_t *isp; 431 int error; 432}; 433 434static void imc(void *, bus_dma_segment_t *, int, int); 435 436static void 437imc(void *arg, bus_dma_segment_t *segs, int nseg, int error) 438{ 439 struct imush *imushp = (struct imush *) arg; 440 if (error) { 441 imushp->error = error; 442 } else { 443 ispsoftc_t *isp =imushp->isp; 444 bus_addr_t addr = segs->ds_addr; 445 446 isp->isp_rquest_dma = addr; 447 addr += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); 448 isp->isp_result_dma = addr; 449 } 450} 451 452static int 453isp_sbus_mbxdma(ispsoftc_t *isp) 454{ 455 caddr_t base; 456 uint32_t len; 457 int i, error; 458 struct imush im; 459 460 /* 461 * Already been here? If so, leave... 462 */ 463 if (isp->isp_rquest) { 464 return (0); 465 } 466 467 ISP_UNLOCK(isp); 468 469 len = sizeof (struct isp_pcmd) * isp->isp_maxcmds; 470 isp->isp_osinfo.pcmd_pool = (struct isp_pcmd *) 471 malloc(len, M_DEVBUF, M_WAITOK | M_ZERO); 472 if (isp->isp_osinfo.pcmd_pool == NULL) { 473 isp_prt(isp, ISP_LOGERR, "cannot alloc pcmd pool"); 474 ISP_LOCK(isp); 475 return (1); 476 } 477 478 len = sizeof (isp_hdl_t *) * isp->isp_maxcmds; 479 isp->isp_xflist = (isp_hdl_t *) malloc(len, M_DEVBUF, M_WAITOK | M_ZERO); 480 if (isp->isp_xflist == NULL) { 481 isp_prt(isp, ISP_LOGERR, "cannot alloc xflist array"); 482 ISP_LOCK(isp); 483 return (1); 484 } 485 for (len = 0; len < isp->isp_maxcmds - 1; len++) { 486 isp->isp_xflist[len].cmd = &isp->isp_xflist[len+1]; 487 } 488 isp->isp_xffree = isp->isp_xflist; 489 len = sizeof (bus_dmamap_t) * isp->isp_maxcmds; 490 491 if (isp_dma_tag_create(BUS_DMA_ROOTARG(ISP_SBD(isp)), 1, 492 BUS_SPACE_MAXADDR_24BIT+1, BUS_SPACE_MAXADDR_32BIT, 493 BUS_SPACE_MAXADDR_32BIT, NULL, NULL, BUS_SPACE_MAXSIZE_32BIT, 494 ISP_NSEG_MAX, BUS_SPACE_MAXADDR_24BIT, 0, &isp->isp_osinfo.dmat)) { 495 isp_prt(isp, ISP_LOGERR, "could not create master dma tag"); 496 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF); 497 free(isp->isp_xflist, M_DEVBUF); 498 ISP_LOCK(isp); 499 return(1); 500 } 501 502 /* 503 * Allocate and map the request, result queues, plus FC scratch area. 504 */ 505 len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); 506 len += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp)); 507 508 if (isp_dma_tag_create(isp->isp_osinfo.dmat, QENTRY_LEN, 509 BUS_SPACE_MAXADDR_24BIT+1, BUS_SPACE_MAXADDR_32BIT, 510 BUS_SPACE_MAXADDR_32BIT, NULL, NULL, len, 1, 511 BUS_SPACE_MAXADDR_24BIT, 0, &isp->isp_osinfo.cdmat)) { 512 isp_prt(isp, ISP_LOGERR, 513 "cannot create a dma tag for control spaces"); 514 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF); 515 free(isp->isp_xflist, M_DEVBUF); 516 ISP_LOCK(isp); 517 return (1); 518 } 519 520 if (bus_dmamem_alloc(isp->isp_osinfo.cdmat, (void **)&base, BUS_DMA_NOWAIT | BUS_DMA_COHERENT, 521 &isp->isp_osinfo.cdmap) != 0) { 522 isp_prt(isp, ISP_LOGERR, 523 "cannot allocate %d bytes of CCB memory", len); 524 bus_dma_tag_destroy(isp->isp_osinfo.cdmat); 525 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF); 526 free(isp->isp_xflist, M_DEVBUF); 527 ISP_LOCK(isp); 528 return (1); 529 } 530 531 for (i = 0; i < isp->isp_maxcmds; i++) { 532 struct isp_pcmd *pcmd = &isp->isp_osinfo.pcmd_pool[i]; 533 error = bus_dmamap_create(isp->isp_osinfo.dmat, 0, &pcmd->dmap); 534 if (error) { 535 isp_prt(isp, ISP_LOGERR, 536 "error %d creating per-cmd DMA maps", error); 537 while (--i >= 0) { 538 bus_dmamap_destroy(isp->isp_osinfo.dmat, 539 isp->isp_osinfo.pcmd_pool[i].dmap); 540 } 541 goto bad; 542 } 543 callout_init_mtx(&pcmd->wdog, &isp->isp_osinfo.lock, 0); 544 if (i == isp->isp_maxcmds-1) { 545 pcmd->next = NULL; 546 } else { 547 pcmd->next = &isp->isp_osinfo.pcmd_pool[i+1]; 548 } 549 } 550 isp->isp_osinfo.pcmd_free = &isp->isp_osinfo.pcmd_pool[0]; 551 552 im.isp = isp; 553 im.error = 0; 554 bus_dmamap_load(isp->isp_osinfo.cdmat, isp->isp_osinfo.cdmap, base, len, imc, &im, 0); 555 if (im.error) { 556 isp_prt(isp, ISP_LOGERR, 557 "error %d loading dma map for control areas", im.error); 558 goto bad; 559 } 560 561 isp->isp_rquest = base; 562 base += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); 563 isp->isp_result = base; 564 ISP_LOCK(isp); 565 return (0); 566 567bad: 568 bus_dmamem_free(isp->isp_osinfo.cdmat, base, isp->isp_osinfo.cdmap); 569 bus_dma_tag_destroy(isp->isp_osinfo.cdmat); 570 free(isp->isp_xflist, M_DEVBUF); 571 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF); 572 isp->isp_rquest = NULL; 573 ISP_LOCK(isp); 574 return (1); 575} 576 577typedef struct { 578 ispsoftc_t *isp; 579 void *cmd_token; 580 void *rq; /* original request */ 581 int error; 582 bus_size_t mapsize; 583} mush_t; 584 585#define MUSHERR_NOQENTRIES -2 586 587static void dma2(void *, bus_dma_segment_t *, int, int); 588 589static void 590dma2(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error) 591{ 592 mush_t *mp; 593 ispsoftc_t *isp; 594 struct ccb_scsiio *csio; 595 isp_ddir_t ddir; 596 ispreq_t *rq; 597 598 mp = (mush_t *) arg; 599 if (error) { 600 mp->error = error; 601 return; 602 } 603 csio = mp->cmd_token; 604 isp = mp->isp; 605 rq = mp->rq; 606 if (nseg) { 607 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 608 bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREREAD); 609 ddir = ISP_FROM_DEVICE; 610 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 611 bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREWRITE); 612 ddir = ISP_TO_DEVICE; 613 } else { 614 ddir = ISP_NOXFR; 615 } 616 } else { 617 dm_segs = NULL; 618 nseg = 0; 619 ddir = ISP_NOXFR; 620 } 621 622 if (isp_send_cmd(isp, rq, dm_segs, nseg, XS_XFRLEN(csio), ddir, NULL) != CMD_QUEUED) { 623 mp->error = MUSHERR_NOQENTRIES; 624 } 625} 626 627static int 628isp_sbus_dmasetup(ispsoftc_t *isp, struct ccb_scsiio *csio, void *ff) 629{ 630 mush_t mush, *mp; 631 void (*eptr)(void *, bus_dma_segment_t *, int, int); 632 int error; 633 634 mp = &mush; 635 mp->isp = isp; 636 mp->cmd_token = csio; 637 mp->rq = ff; 638 mp->error = 0; 639 mp->mapsize = 0; 640 641 eptr = dma2; 642 643 error = bus_dmamap_load_ccb(isp->isp_osinfo.dmat, 644 PISP_PCMD(csio)->dmap, (union ccb *)csio, eptr, mp, 0); 645 if (error == EINPROGRESS) { 646 bus_dmamap_unload(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap); 647 mp->error = EINVAL; 648 isp_prt(isp, ISP_LOGERR, 649 "deferred dma allocation not supported"); 650 } else if (error && mp->error == 0) { 651#ifdef DIAGNOSTIC 652 isp_prt(isp, ISP_LOGERR, "error %d in dma mapping code", error); 653#endif 654 mp->error = error; 655 } 656 if (mp->error) { 657 int retval = CMD_COMPLETE; 658 if (mp->error == MUSHERR_NOQENTRIES) { 659 retval = CMD_EAGAIN; 660 } else if (mp->error == EFBIG) { 661 XS_SETERR(csio, CAM_REQ_TOO_BIG); 662 } else if (mp->error == EINVAL) { 663 XS_SETERR(csio, CAM_REQ_INVALID); 664 } else { 665 XS_SETERR(csio, CAM_UNREC_HBA_ERROR); 666 } 667 return (retval); 668 } 669 return (CMD_QUEUED); 670} 671 672static void 673isp_sbus_reset0(ispsoftc_t *isp) 674{ 675 ISP_DISABLE_INTS(isp); 676} 677 678static void 679isp_sbus_reset1(ispsoftc_t *isp) 680{ 681 ISP_ENABLE_INTS(isp); 682} 683 684static void 685isp_sbus_dumpregs(ispsoftc_t *isp, const char *msg) 686{ 687 if (msg) 688 printf("%s: %s\n", device_get_nameunit(isp->isp_dev), msg); 689 else 690 printf("%s:\n", device_get_nameunit(isp->isp_dev)); 691 printf(" biu_conf1=%x", ISP_READ(isp, BIU_CONF1)); 692 printf(" biu_icr=%x biu_isr=%x biu_sema=%x ", ISP_READ(isp, BIU_ICR), 693 ISP_READ(isp, BIU_ISR), ISP_READ(isp, BIU_SEMA)); 694 printf("risc_hccr=%x\n", ISP_READ(isp, HCCR)); 695 696 697 ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE); 698 printf(" cdma_conf=%x cdma_sts=%x cdma_fifostat=%x\n", 699 ISP_READ(isp, CDMA_CONF), ISP_READ(isp, CDMA_STATUS), 700 ISP_READ(isp, CDMA_FIFO_STS)); 701 printf(" ddma_conf=%x ddma_sts=%x ddma_fifostat=%x\n", 702 ISP_READ(isp, DDMA_CONF), ISP_READ(isp, DDMA_STATUS), 703 ISP_READ(isp, DDMA_FIFO_STS)); 704 printf(" sxp_int=%x sxp_gross=%x sxp(scsi_ctrl)=%x\n", 705 ISP_READ(isp, SXP_INTERRUPT), 706 ISP_READ(isp, SXP_GROSS_ERR), 707 ISP_READ(isp, SXP_PINS_CTRL)); 708 ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE); 709 printf(" mbox regs: %x %x %x %x %x\n", 710 ISP_READ(isp, OUTMAILBOX0), ISP_READ(isp, OUTMAILBOX1), 711 ISP_READ(isp, OUTMAILBOX2), ISP_READ(isp, OUTMAILBOX3), 712 ISP_READ(isp, OUTMAILBOX4)); 713} 714