isp_sbus.c revision 291528
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: stable/10/sys/dev/isp/isp_sbus.c 291528 2015-11-30 21:55:35Z 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 if (IS_FC(isp)) 207 ISP_FC_PC(isp, 0)->def_role = role; 208 209 /* 210 * Get the clock frequency and convert it from HZ to MHz, 211 * rounding up. This defaults to 25MHz if there isn't a 212 * device specific one in the OFW device tree. 213 */ 214 sbs->sbus_mdvec.dv_clock = (sbus_get_clockfreq(dev) + 500000)/1000000; 215 216 /* 217 * Now figure out what the proper burst sizes, etc., to use. 218 * Unfortunately, there is no ddi_dma_burstsizes here which 219 * walks up the tree finding the limiting burst size node (if 220 * any). We just use what's here for isp. 221 */ 222 ispburst = sbus_get_burstsz(dev); 223 if (ispburst == 0) { 224 ispburst = SBUS_BURST_32 - 1; 225 } 226 sbs->sbus_mdvec.dv_conf1 = 0; 227 if (ispburst & (1 << 5)) { 228 sbs->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_32; 229 } else if (ispburst & (1 << 4)) { 230 sbs->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_16; 231 } else if (ispburst & (1 << 3)) { 232 sbs->sbus_mdvec.dv_conf1 = 233 BIU_SBUS_CONF1_BURST8 | BIU_SBUS_CONF1_FIFO_8; 234 } 235 if (sbs->sbus_mdvec.dv_conf1) { 236 sbs->sbus_mdvec.dv_conf1 |= BIU_BURST_ENABLE; 237 } 238 239 /* 240 * We don't trust NVRAM on SBus cards 241 */ 242 isp->isp_confopts |= ISP_CFG_NONVRAM; 243 244 /* 245 * Mark things if we're a PTI SBus adapter. 246 */ 247 if (strcmp("PTI,ptisp", ofw_bus_get_name(dev)) == 0 || 248 strcmp("ptisp", ofw_bus_get_name(dev)) == 0) { 249 SDPARAM(isp, 0)->isp_ptisp = 1; 250 } 251 252 isp->isp_osinfo.fw = firmware_get("isp_1000"); 253 if (isp->isp_osinfo.fw) { 254 union { 255 const void *cp; 256 uint16_t *sp; 257 } stupid; 258 stupid.cp = isp->isp_osinfo.fw->data; 259 isp->isp_mdvec->dv_ispfw = stupid.sp; 260 } 261 262 tval = 0; 263 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 264 "fwload_disable", &tval) == 0 && tval != 0) { 265 isp->isp_confopts |= ISP_CFG_NORELOAD; 266 } 267 268 default_id = -1; 269 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 270 "iid", &tval) == 0) { 271 default_id = tval; 272 isp->isp_confopts |= ISP_CFG_OWNLOOPID; 273 } 274 if (default_id == -1) { 275 default_id = OF_getscsinitid(dev); 276 } 277 ISP_SPI_PC(isp, 0)->iid = default_id; 278 279 isp_debug = 0; 280 (void) resource_int_value(device_get_name(dev), device_get_unit(dev), 281 "debug", &isp_debug); 282 283 /* Make sure the lock is set up. */ 284 mtx_init(&isp->isp_osinfo.lock, "isp", NULL, MTX_DEF); 285 locksetup++; 286 287 sbs->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sbs->iqd, 288 RF_ACTIVE | RF_SHAREABLE); 289 if (sbs->irq == NULL) { 290 device_printf(dev, "could not allocate interrupt\n"); 291 goto bad; 292 } 293 294 if (isp_setup_intr(dev, sbs->irq, ISP_IFLAGS, NULL, isp_platform_intr, 295 isp, &sbs->ih)) { 296 device_printf(dev, "could not setup interrupt\n"); 297 goto bad; 298 } 299 ints_setup++; 300 301 /* 302 * Set up logging levels. 303 */ 304 if (isp_debug) { 305 isp->isp_dblev = isp_debug; 306 } else { 307 isp->isp_dblev = ISP_LOGWARN|ISP_LOGERR; 308 } 309 if (bootverbose) { 310 isp->isp_dblev |= ISP_LOGCONFIG|ISP_LOGINFO; 311 } 312 313 /* 314 * Make sure we're in reset state. 315 */ 316 ISP_LOCK(isp); 317 if (isp_reinit(isp, 1) != 0) { 318 isp_uninit(isp); 319 ISP_UNLOCK(isp); 320 goto bad; 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 331bad: 332 333 if (sbs && ints_setup) { 334 (void) bus_teardown_intr(dev, sbs->irq, sbs->ih); 335 } 336 337 if (sbs && sbs->irq) { 338 bus_release_resource(dev, SYS_RES_IRQ, sbs->iqd, sbs->irq); 339 } 340 341 if (locksetup && isp) { 342 mtx_destroy(&isp->isp_osinfo.lock); 343 } 344 345 if (sbs->regs) { 346 (void) bus_release_resource(dev, SYS_RES_MEMORY, sbs->rgd, 347 sbs->regs); 348 } 349 return (ENXIO); 350} 351 352static int 353isp_sbus_detach(device_t dev) 354{ 355 struct isp_sbussoftc *sbs; 356 ispsoftc_t *isp; 357 int status; 358 359 sbs = device_get_softc(dev); 360 if (sbs == NULL) { 361 return (ENXIO); 362 } 363 isp = (ispsoftc_t *) sbs; 364 status = isp_detach(isp); 365 if (status) 366 return (status); 367 ISP_LOCK(isp); 368 isp_uninit(isp); 369 if (sbs->ih) { 370 (void) bus_teardown_intr(dev, sbs->irq, sbs->ih); 371 } 372 ISP_UNLOCK(isp); 373 mtx_destroy(&isp->isp_osinfo.lock); 374 (void) bus_release_resource(dev, SYS_RES_IRQ, sbs->iqd, sbs->irq); 375 (void) bus_release_resource(dev, SYS_RES_MEMORY, sbs->rgd, sbs->regs); 376 return (0); 377} 378 379#define IspVirt2Off(a, x) \ 380 (((struct isp_sbussoftc *)a)->sbus_poff[((x) & _BLK_REG_MASK) >> \ 381 _BLK_REG_SHFT] + ((x) & 0xff)) 382 383#define BXR2(sbc, off) \ 384 bus_space_read_2(isp->isp_bus_tag, isp->isp_bus_handle, off) 385 386static int 387isp_sbus_rd_isr(ispsoftc_t *isp, uint16_t *isrp, uint16_t *semap, uint16_t *info) 388{ 389 uint16_t isr, sema; 390 391 isr = BXR2(sbc, IspVirt2Off(isp, BIU_ISR)); 392 sema = BXR2(sbc, IspVirt2Off(isp, BIU_SEMA)); 393 isp_prt(isp, ISP_LOGDEBUG3, "ISR 0x%x SEMA 0x%x", isr, sema); 394 isr &= INT_PENDING_MASK(isp); 395 sema &= BIU_SEMA_LOCK; 396 if (isr == 0 && sema == 0) { 397 return (0); 398 } 399 *isrp = isr; 400 if ((*semap = sema) != 0) 401 *info = BXR2(sbc, IspVirt2Off(isp, OUTMAILBOX0)); 402 return (1); 403} 404 405static uint32_t 406isp_sbus_rd_reg(ispsoftc_t *isp, int regoff) 407{ 408 uint16_t rval; 409 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp; 410 int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; 411 offset += (regoff & 0xff); 412 rval = bus_space_read_2(isp->isp_bus_tag, isp->isp_bus_handle, offset); 413 isp_prt(isp, ISP_LOGDEBUG3, 414 "isp_sbus_rd_reg(off %x) = %x", regoff, rval); 415 return (rval); 416} 417 418static void 419isp_sbus_wr_reg(ispsoftc_t *isp, int regoff, uint32_t val) 420{ 421 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp; 422 int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; 423 offset += (regoff & 0xff); 424 isp_prt(isp, ISP_LOGDEBUG3, 425 "isp_sbus_wr_reg(off %x) = %x", regoff, val); 426 bus_space_write_2(isp->isp_bus_tag, isp->isp_bus_handle, offset, val); 427 MEMORYBARRIER(isp, SYNC_REG, offset, 2, -1); 428} 429 430struct imush { 431 ispsoftc_t *isp; 432 int error; 433}; 434 435static void imc(void *, bus_dma_segment_t *, int, int); 436 437static void 438imc(void *arg, bus_dma_segment_t *segs, int nseg, int error) 439{ 440 struct imush *imushp = (struct imush *) arg; 441 if (error) { 442 imushp->error = error; 443 } else { 444 ispsoftc_t *isp =imushp->isp; 445 bus_addr_t addr = segs->ds_addr; 446 447 isp->isp_rquest_dma = addr; 448 addr += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); 449 isp->isp_result_dma = addr; 450 } 451} 452 453static int 454isp_sbus_mbxdma(ispsoftc_t *isp) 455{ 456 caddr_t base; 457 uint32_t len; 458 int i, error; 459 struct imush im; 460 461 /* 462 * Already been here? If so, leave... 463 */ 464 if (isp->isp_rquest) { 465 return (0); 466 } 467 468 ISP_UNLOCK(isp); 469 470 len = sizeof (struct isp_pcmd) * isp->isp_maxcmds; 471 isp->isp_osinfo.pcmd_pool = (struct isp_pcmd *) 472 malloc(len, M_DEVBUF, M_WAITOK | M_ZERO); 473 if (isp->isp_osinfo.pcmd_pool == NULL) { 474 isp_prt(isp, ISP_LOGERR, "cannot alloc pcmd pool"); 475 ISP_LOCK(isp); 476 return (1); 477 } 478 479 len = sizeof (isp_hdl_t *) * isp->isp_maxcmds; 480 isp->isp_xflist = (isp_hdl_t *) malloc(len, M_DEVBUF, M_WAITOK | M_ZERO); 481 if (isp->isp_xflist == NULL) { 482 isp_prt(isp, ISP_LOGERR, "cannot alloc xflist array"); 483 ISP_LOCK(isp); 484 return (1); 485 } 486 for (len = 0; len < isp->isp_maxcmds - 1; len++) { 487 isp->isp_xflist[len].cmd = &isp->isp_xflist[len+1]; 488 } 489 isp->isp_xffree = isp->isp_xflist; 490 len = sizeof (bus_dmamap_t) * isp->isp_maxcmds; 491 492 if (isp_dma_tag_create(BUS_DMA_ROOTARG(ISP_SBD(isp)), 1, 493 BUS_SPACE_MAXADDR_24BIT+1, BUS_SPACE_MAXADDR_32BIT, 494 BUS_SPACE_MAXADDR_32BIT, NULL, NULL, BUS_SPACE_MAXSIZE_32BIT, 495 ISP_NSEG_MAX, BUS_SPACE_MAXADDR_24BIT, 0, &isp->isp_osinfo.dmat)) { 496 isp_prt(isp, ISP_LOGERR, "could not create master dma tag"); 497 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF); 498 free(isp->isp_xflist, M_DEVBUF); 499 ISP_LOCK(isp); 500 return(1); 501 } 502 503 /* 504 * Allocate and map the request, result queues, plus FC scratch area. 505 */ 506 len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); 507 len += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp)); 508 509 if (isp_dma_tag_create(isp->isp_osinfo.dmat, QENTRY_LEN, 510 BUS_SPACE_MAXADDR_24BIT+1, BUS_SPACE_MAXADDR_32BIT, 511 BUS_SPACE_MAXADDR_32BIT, NULL, NULL, len, 1, 512 BUS_SPACE_MAXADDR_24BIT, 0, &isp->isp_osinfo.cdmat)) { 513 isp_prt(isp, ISP_LOGERR, 514 "cannot create a dma tag for control spaces"); 515 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF); 516 free(isp->isp_xflist, M_DEVBUF); 517 ISP_LOCK(isp); 518 return (1); 519 } 520 521 if (bus_dmamem_alloc(isp->isp_osinfo.cdmat, (void **)&base, BUS_DMA_NOWAIT | BUS_DMA_COHERENT, 522 &isp->isp_osinfo.cdmap) != 0) { 523 isp_prt(isp, ISP_LOGERR, 524 "cannot allocate %d bytes of CCB memory", len); 525 bus_dma_tag_destroy(isp->isp_osinfo.cdmat); 526 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF); 527 free(isp->isp_xflist, M_DEVBUF); 528 ISP_LOCK(isp); 529 return (1); 530 } 531 532 for (i = 0; i < isp->isp_maxcmds; i++) { 533 struct isp_pcmd *pcmd = &isp->isp_osinfo.pcmd_pool[i]; 534 error = bus_dmamap_create(isp->isp_osinfo.dmat, 0, &pcmd->dmap); 535 if (error) { 536 isp_prt(isp, ISP_LOGERR, 537 "error %d creating per-cmd DMA maps", error); 538 while (--i >= 0) { 539 bus_dmamap_destroy(isp->isp_osinfo.dmat, 540 isp->isp_osinfo.pcmd_pool[i].dmap); 541 } 542 goto bad; 543 } 544 callout_init_mtx(&pcmd->wdog, &isp->isp_osinfo.lock, 0); 545 if (i == isp->isp_maxcmds-1) { 546 pcmd->next = NULL; 547 } else { 548 pcmd->next = &isp->isp_osinfo.pcmd_pool[i+1]; 549 } 550 } 551 isp->isp_osinfo.pcmd_free = &isp->isp_osinfo.pcmd_pool[0]; 552 553 im.isp = isp; 554 im.error = 0; 555 bus_dmamap_load(isp->isp_osinfo.cdmat, isp->isp_osinfo.cdmap, base, len, imc, &im, 0); 556 if (im.error) { 557 isp_prt(isp, ISP_LOGERR, 558 "error %d loading dma map for control areas", im.error); 559 goto bad; 560 } 561 562 isp->isp_rquest = base; 563 base += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); 564 isp->isp_result = base; 565 ISP_LOCK(isp); 566 return (0); 567 568bad: 569 bus_dmamem_free(isp->isp_osinfo.cdmat, base, isp->isp_osinfo.cdmap); 570 bus_dma_tag_destroy(isp->isp_osinfo.cdmat); 571 free(isp->isp_xflist, M_DEVBUF); 572 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF); 573 isp->isp_rquest = NULL; 574 ISP_LOCK(isp); 575 return (1); 576} 577 578typedef struct { 579 ispsoftc_t *isp; 580 void *cmd_token; 581 void *rq; /* original request */ 582 int error; 583 bus_size_t mapsize; 584} mush_t; 585 586#define MUSHERR_NOQENTRIES -2 587 588static void dma2(void *, bus_dma_segment_t *, int, int); 589 590static void 591dma2(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error) 592{ 593 mush_t *mp; 594 ispsoftc_t *isp; 595 struct ccb_scsiio *csio; 596 isp_ddir_t ddir; 597 ispreq_t *rq; 598 599 mp = (mush_t *) arg; 600 if (error) { 601 mp->error = error; 602 return; 603 } 604 csio = mp->cmd_token; 605 isp = mp->isp; 606 rq = mp->rq; 607 if (nseg) { 608 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 609 bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREREAD); 610 ddir = ISP_FROM_DEVICE; 611 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 612 bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREWRITE); 613 ddir = ISP_TO_DEVICE; 614 } else { 615 ddir = ISP_NOXFR; 616 } 617 } else { 618 dm_segs = NULL; 619 nseg = 0; 620 ddir = ISP_NOXFR; 621 } 622 623 if (isp_send_cmd(isp, rq, dm_segs, nseg, XS_XFRLEN(csio), ddir, NULL) != CMD_QUEUED) { 624 mp->error = MUSHERR_NOQENTRIES; 625 } 626} 627 628static int 629isp_sbus_dmasetup(ispsoftc_t *isp, struct ccb_scsiio *csio, void *ff) 630{ 631 mush_t mush, *mp; 632 void (*eptr)(void *, bus_dma_segment_t *, int, int); 633 int error; 634 635 mp = &mush; 636 mp->isp = isp; 637 mp->cmd_token = csio; 638 mp->rq = ff; 639 mp->error = 0; 640 mp->mapsize = 0; 641 642 eptr = dma2; 643 644 error = bus_dmamap_load_ccb(isp->isp_osinfo.dmat, 645 PISP_PCMD(csio)->dmap, (union ccb *)csio, eptr, mp, 0); 646 if (error == EINPROGRESS) { 647 bus_dmamap_unload(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap); 648 mp->error = EINVAL; 649 isp_prt(isp, ISP_LOGERR, 650 "deferred dma allocation not supported"); 651 } else if (error && mp->error == 0) { 652#ifdef DIAGNOSTIC 653 isp_prt(isp, ISP_LOGERR, "error %d in dma mapping code", error); 654#endif 655 mp->error = error; 656 } 657 if (mp->error) { 658 int retval = CMD_COMPLETE; 659 if (mp->error == MUSHERR_NOQENTRIES) { 660 retval = CMD_EAGAIN; 661 } else if (mp->error == EFBIG) { 662 XS_SETERR(csio, CAM_REQ_TOO_BIG); 663 } else if (mp->error == EINVAL) { 664 XS_SETERR(csio, CAM_REQ_INVALID); 665 } else { 666 XS_SETERR(csio, CAM_UNREC_HBA_ERROR); 667 } 668 return (retval); 669 } 670 return (CMD_QUEUED); 671} 672 673static void 674isp_sbus_reset0(ispsoftc_t *isp) 675{ 676 ISP_DISABLE_INTS(isp); 677} 678 679static void 680isp_sbus_reset1(ispsoftc_t *isp) 681{ 682 ISP_ENABLE_INTS(isp); 683} 684 685static void 686isp_sbus_dumpregs(ispsoftc_t *isp, const char *msg) 687{ 688 if (msg) 689 printf("%s: %s\n", device_get_nameunit(isp->isp_dev), msg); 690 else 691 printf("%s:\n", device_get_nameunit(isp->isp_dev)); 692 printf(" biu_conf1=%x", ISP_READ(isp, BIU_CONF1)); 693 printf(" biu_icr=%x biu_isr=%x biu_sema=%x ", ISP_READ(isp, BIU_ICR), 694 ISP_READ(isp, BIU_ISR), ISP_READ(isp, BIU_SEMA)); 695 printf("risc_hccr=%x\n", ISP_READ(isp, HCCR)); 696 697 698 ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE); 699 printf(" cdma_conf=%x cdma_sts=%x cdma_fifostat=%x\n", 700 ISP_READ(isp, CDMA_CONF), ISP_READ(isp, CDMA_STATUS), 701 ISP_READ(isp, CDMA_FIFO_STS)); 702 printf(" ddma_conf=%x ddma_sts=%x ddma_fifostat=%x\n", 703 ISP_READ(isp, DDMA_CONF), ISP_READ(isp, DDMA_STATUS), 704 ISP_READ(isp, DDMA_FIFO_STS)); 705 printf(" sxp_int=%x sxp_gross=%x sxp(scsi_ctrl)=%x\n", 706 ISP_READ(isp, SXP_INTERRUPT), 707 ISP_READ(isp, SXP_GROSS_ERR), 708 ISP_READ(isp, SXP_PINS_CTRL)); 709 ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE); 710 printf(" mbox regs: %x %x %x %x %x\n", 711 ISP_READ(isp, OUTMAILBOX0), ISP_READ(isp, OUTMAILBOX1), 712 ISP_READ(isp, OUTMAILBOX2), ISP_READ(isp, OUTMAILBOX3), 713 ISP_READ(isp, OUTMAILBOX4)); 714} 715