isp_sbus.c revision 133589
1/*- 2 * PCI specific probe and attach routines for Qlogic ISP SCSI adapters. 3 * FreeBSD Version. 4 * 5 * Copyright (c) 1997, 1998, 1999, 2000, 2001 by Matthew Jacob 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice immediately at the beginning of the file, without modification, 12 * this list of conditions, and the following disclaimer. 13 * 2. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29#include <sys/cdefs.h> 30__FBSDID("$FreeBSD: head/sys/dev/isp/isp_sbus.c 133589 2004-08-12 17:41:33Z marius $"); 31 32#include <sys/param.h> 33#include <sys/systm.h> 34#include <sys/bus.h> 35#include <sys/kernel.h> 36#include <sys/module.h> 37#include <sys/resource.h> 38 39#include <dev/ofw/ofw_bus.h> 40 41#include <machine/bus.h> 42#include <machine/resource.h> 43#include <sys/rman.h> 44#include <sparc64/sbus/sbusvar.h> 45 46#include <dev/isp/isp_freebsd.h> 47 48static u_int16_t isp_sbus_rd_reg(struct ispsoftc *, int); 49static void isp_sbus_wr_reg(struct ispsoftc *, int, u_int16_t); 50static int 51isp_sbus_rd_isr(struct ispsoftc *, u_int16_t *, u_int16_t *, u_int16_t *); 52static int isp_sbus_mbxdma(struct ispsoftc *); 53static int 54isp_sbus_dmasetup(struct ispsoftc *, XS_T *, ispreq_t *, u_int16_t *, u_int16_t); 55static void 56isp_sbus_dmateardown(struct ispsoftc *, XS_T *, u_int16_t); 57 58static void isp_sbus_reset1(struct ispsoftc *); 59static void isp_sbus_dumpregs(struct ispsoftc *, const char *); 60 61static struct ispmdvec mdvec = { 62 isp_sbus_rd_isr, 63 isp_sbus_rd_reg, 64 isp_sbus_wr_reg, 65 isp_sbus_mbxdma, 66 isp_sbus_dmasetup, 67 isp_sbus_dmateardown, 68 NULL, 69 isp_sbus_reset1, 70 isp_sbus_dumpregs, 71 NULL, 72 BIU_BURST_ENABLE|BIU_PCI_CONF1_FIFO_64 73}; 74 75static int isp_sbus_probe (device_t); 76static int isp_sbus_attach (device_t); 77 78 79struct isp_sbussoftc { 80 struct ispsoftc sbus_isp; 81 device_t sbus_dev; 82 struct resource * sbus_reg; 83 bus_space_tag_t sbus_st; 84 bus_space_handle_t sbus_sh; 85 void * ih; 86 int16_t sbus_poff[_NREG_BLKS]; 87 bus_dma_tag_t dmat; 88 bus_dmamap_t *dmaps; 89 sdparam sbus_param; 90 struct ispmdvec sbus_mdvec; 91 struct resource * sbus_ires; 92}; 93 94extern ispfwfunc *isp_get_firmware_p; 95 96static device_method_t isp_sbus_methods[] = { 97 /* Device interface */ 98 DEVMETHOD(device_probe, isp_sbus_probe), 99 DEVMETHOD(device_attach, isp_sbus_attach), 100 { 0, 0 } 101}; 102static void isp_sbus_intr(void *); 103 104static driver_t isp_sbus_driver = { 105 "isp", isp_sbus_methods, sizeof (struct isp_sbussoftc) 106}; 107static devclass_t isp_devclass; 108DRIVER_MODULE(isp, sbus, isp_sbus_driver, isp_devclass, 0, 0); 109 110static int 111isp_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 134static int 135isp_sbus_attach(device_t dev) 136{ 137 struct resource *regs; 138 int tval, iqd, isp_debug, role, rid, ispburst, freq; 139 struct isp_sbussoftc *sbs; 140 struct ispsoftc *isp = NULL; 141 int locksetup = 0; 142 143 /* 144 * Figure out if we're supposed to skip this one. 145 * If we are, we actually go to ISP_ROLE_NONE. 146 */ 147 148 tval = 0; 149 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 150 "disable", &tval) == 0 && tval) { 151 device_printf(dev, "device is disabled\n"); 152 /* but return 0 so the !$)$)*!$*) unit isn't reused */ 153 return (0); 154 } 155 156 role = 0; 157 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 158 "role", &role) == 0 && 159 ((role & ~(ISP_ROLE_INITIATOR|ISP_ROLE_TARGET)) == 0)) { 160 device_printf(dev, "setting role to 0x%x\n", role); 161 } else { 162#ifdef ISP_TARGET_MODE 163 role = ISP_ROLE_INITIATOR|ISP_ROLE_TARGET; 164#else 165 role = ISP_DEFAULT_ROLES; 166#endif 167 } 168 169 sbs = malloc(sizeof (*sbs), M_DEVBUF, M_NOWAIT | M_ZERO); 170 if (sbs == NULL) { 171 device_printf(dev, "cannot allocate softc\n"); 172 return (ENOMEM); 173 } 174 175 regs = NULL; 176 iqd = 0; 177 178 rid = 0; 179 regs = 180 bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE); 181 if (regs == 0) { 182 device_printf(dev, "unable to map registers\n"); 183 goto bad; 184 } 185 sbs->sbus_dev = dev; 186 sbs->sbus_reg = regs; 187 sbs->sbus_st = rman_get_bustag(regs); 188 sbs->sbus_sh = rman_get_bushandle(regs); 189 sbs->sbus_mdvec = mdvec; 190 191 sbs->sbus_poff[BIU_BLOCK >> _BLK_REG_SHFT] = BIU_REGS_OFF; 192 sbs->sbus_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = SBUS_MBOX_REGS_OFF; 193 sbs->sbus_poff[SXP_BLOCK >> _BLK_REG_SHFT] = SBUS_SXP_REGS_OFF; 194 sbs->sbus_poff[RISC_BLOCK >> _BLK_REG_SHFT] = SBUS_RISC_REGS_OFF; 195 sbs->sbus_poff[DMA_BLOCK >> _BLK_REG_SHFT] = DMA_REGS_OFF; 196 isp = &sbs->sbus_isp; 197 isp->isp_mdvec = &sbs->sbus_mdvec; 198 isp->isp_bustype = ISP_BT_SBUS; 199 isp->isp_type = ISP_HA_SCSI_UNKNOWN; 200 isp->isp_param = &sbs->sbus_param; 201 isp->isp_revision = 0; /* XXX */ 202 isp->isp_role = role; 203 isp->isp_dev = dev; 204 205 freq = sbus_get_clockfreq(dev); 206 if (freq) { 207 /* 208 * Convert from HZ to MHz, rounding up. 209 */ 210 freq = (freq + 500000)/1000000; 211 } else { 212 freq = 25; 213 } 214 sbs->sbus_mdvec.dv_clock = freq << 8; 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 * Some early versions of the PTI SBus adapter 241 * would fail in trying to download (via poking) 242 * FW. We give up on them. 243 */ 244 if (strcmp("PTI,ptisp", ofw_bus_get_name(dev)) == 0 || 245 strcmp("ptisp", ofw_bus_get_name(dev)) == 0) { 246 isp->isp_confopts |= ISP_CFG_NORELOAD; 247 } 248 249 /* 250 * We don't trust NVRAM on SBus cards 251 */ 252 isp->isp_confopts |= ISP_CFG_NONVRAM; 253 254 255 /* 256 * Try and find firmware for this device. 257 */ 258 259 if (isp_get_firmware_p) { 260 (*isp_get_firmware_p)(0, 0, 0x1000, &sbs->sbus_mdvec.dv_ispfw); 261 } 262 263 iqd = 0; 264 sbs->sbus_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd, 265 RF_ACTIVE | RF_SHAREABLE); 266 if (sbs->sbus_ires == NULL) { 267 device_printf(dev, "could not allocate interrupt\n"); 268 goto bad; 269 } 270 271 tval = 0; 272 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 273 "fwload_disable", &tval) == 0 && tval != 0) { 274 isp->isp_confopts |= ISP_CFG_NORELOAD; 275 } 276 277 isp->isp_osinfo.default_id = -1; 278 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 279 "iid", &tval) == 0) { 280 isp->isp_osinfo.default_id = tval; 281 isp->isp_confopts |= ISP_CFG_OWNLOOPID; 282 } 283 if (isp->isp_osinfo.default_id == -1) { 284 /* 285 * XXX: should be a way to get properties w/o having 286 * XXX: to call OF_xxx functions 287 */ 288 isp->isp_osinfo.default_id = 7; 289 } 290 291 isp_debug = 0; 292 (void) resource_int_value(device_get_name(dev), device_get_unit(dev), 293 "debug", &isp_debug); 294 295 /* Make sure the lock is set up. */ 296 mtx_init(&isp->isp_osinfo.lock, "isp", NULL, MTX_DEF); 297 locksetup++; 298 299 if (bus_setup_intr(dev, sbs->sbus_ires, ISP_IFLAGS, 300 isp_sbus_intr, isp, &sbs->ih)) { 301 device_printf(dev, "could not setup interrupt\n"); 302 goto bad; 303 } 304 305 /* 306 * Set up logging levels. 307 */ 308 if (isp_debug) { 309 isp->isp_dblev = isp_debug; 310 } else { 311 isp->isp_dblev = ISP_LOGWARN|ISP_LOGERR; 312 } 313 if (bootverbose) 314 isp->isp_dblev |= ISP_LOGCONFIG|ISP_LOGINFO; 315 316 /* 317 * Make sure we're in reset state. 318 */ 319 ISP_LOCK(isp); 320 isp_reset(isp); 321 if (isp->isp_state != ISP_RESETSTATE) { 322 ISP_UNLOCK(isp); 323 goto bad; 324 } 325 isp_init(isp); 326 if (isp->isp_role != ISP_ROLE_NONE && isp->isp_state != ISP_INITSTATE) { 327 isp_uninit(isp); 328 ISP_UNLOCK(isp); 329 goto bad; 330 } 331 isp_attach(isp); 332 if (isp->isp_role != ISP_ROLE_NONE && isp->isp_state != ISP_RUNSTATE) { 333 isp_uninit(isp); 334 ISP_UNLOCK(isp); 335 goto bad; 336 } 337 /* 338 * XXXX: Here is where we might unload the f/w module 339 * XXXX: (or decrease the reference count to it). 340 */ 341 ISP_UNLOCK(isp); 342 return (0); 343 344bad: 345 346 if (sbs && sbs->ih) { 347 (void) bus_teardown_intr(dev, sbs->sbus_ires, sbs->ih); 348 } 349 350 if (locksetup && isp) { 351 mtx_destroy(&isp->isp_osinfo.lock); 352 } 353 354 if (sbs && sbs->sbus_ires) { 355 bus_release_resource(dev, SYS_RES_IRQ, iqd, sbs->sbus_ires); 356 } 357 358 359 if (regs) { 360 (void) bus_release_resource(dev, 0, 0, regs); 361 } 362 363 if (sbs) { 364 if (sbs->sbus_isp.isp_param) 365 free(sbs->sbus_isp.isp_param, M_DEVBUF); 366 free(sbs, M_DEVBUF); 367 } 368 369 /* 370 * XXXX: Here is where we might unload the f/w module 371 * XXXX: (or decrease the reference count to it). 372 */ 373 return (ENXIO); 374} 375 376static void 377isp_sbus_intr(void *arg) 378{ 379 struct ispsoftc *isp = arg; 380 u_int16_t isr, sema, mbox; 381 382 ISP_LOCK(isp); 383 isp->isp_intcnt++; 384 if (ISP_READ_ISR(isp, &isr, &sema, &mbox) == 0) { 385 isp->isp_intbogus++; 386 } else { 387 int iok = isp->isp_osinfo.intsok; 388 isp->isp_osinfo.intsok = 0; 389 isp_intr(isp, isr, sema, mbox); 390 isp->isp_osinfo.intsok = iok; 391 } 392 ISP_UNLOCK(isp); 393} 394 395#define IspVirt2Off(a, x) \ 396 (((struct isp_sbussoftc *)a)->sbus_poff[((x) & _BLK_REG_MASK) >> \ 397 _BLK_REG_SHFT] + ((x) & 0xff)) 398 399#define BXR2(sbc, off) \ 400 bus_space_read_2(sbc->sbus_st, sbc->sbus_sh, off) 401 402static int 403isp_sbus_rd_isr(struct ispsoftc *isp, u_int16_t *isrp, 404 u_int16_t *semap, u_int16_t *mbp) 405{ 406 struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp; 407 u_int16_t isr, sema; 408 409 isr = BXR2(sbc, IspVirt2Off(isp, BIU_ISR)); 410 sema = BXR2(sbc, IspVirt2Off(isp, BIU_SEMA)); 411 isp_prt(isp, ISP_LOGDEBUG3, "ISR 0x%x SEMA 0x%x", isr, sema); 412 isr &= INT_PENDING_MASK(isp); 413 sema &= BIU_SEMA_LOCK; 414 if (isr == 0 && sema == 0) { 415 return (0); 416 } 417 *isrp = isr; 418 if ((*semap = sema) != 0) { 419 *mbp = BXR2(sbc, IspVirt2Off(isp, OUTMAILBOX0)); 420 } 421 return (1); 422} 423 424static u_int16_t 425isp_sbus_rd_reg(struct ispsoftc *isp, int regoff) 426{ 427 u_int16_t rval; 428 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp; 429 int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; 430 offset += (regoff & 0xff); 431 rval = bus_space_read_2(sbs->sbus_st, sbs->sbus_sh, offset); 432 isp_prt(isp, ISP_LOGDEBUG3, 433 "isp_sbus_rd_reg(off %x) = %x", regoff, rval); 434 return (rval); 435} 436 437static void 438isp_sbus_wr_reg(struct ispsoftc *isp, int regoff, u_int16_t val) 439{ 440 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp; 441 int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; 442 offset += (regoff & 0xff); 443 isp_prt(isp, ISP_LOGDEBUG3, 444 "isp_sbus_wr_reg(off %x) = %x", regoff, val); 445 bus_space_write_2(sbs->sbus_st, sbs->sbus_sh, offset, val); 446} 447 448struct imush { 449 struct ispsoftc *isp; 450 int error; 451}; 452 453static void imc(void *, bus_dma_segment_t *, int, int); 454 455static void 456imc(void *arg, bus_dma_segment_t *segs, int nseg, int error) 457{ 458 struct imush *imushp = (struct imush *) arg; 459 if (error) { 460 imushp->error = error; 461 } else { 462 struct ispsoftc *isp =imushp->isp; 463 bus_addr_t addr = segs->ds_addr; 464 465 isp->isp_rquest_dma = addr; 466 addr += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); 467 isp->isp_result_dma = addr; 468 } 469} 470 471/* 472 * Should be BUS_SPACE_MAXSIZE, but MAXPHYS is larger than BUS_SPACE_MAXSIZE 473 */ 474#define ISP_NSEGS ((MAXPHYS / PAGE_SIZE) + 1) 475 476static int 477isp_sbus_mbxdma(struct ispsoftc *isp) 478{ 479 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *)isp; 480 caddr_t base; 481 u_int32_t len; 482 int i, error, ns; 483 struct imush im; 484 485 /* 486 * Already been here? If so, leave... 487 */ 488 if (isp->isp_rquest) { 489 return (0); 490 } 491 492 ISP_UNLOCK(isp); 493 494 if (bus_dma_tag_create(NULL, 1, BUS_SPACE_MAXADDR_24BIT+1, 495 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR_32BIT, 496 NULL, NULL, BUS_SPACE_MAXSIZE_32BIT, ISP_NSEGS, 497 BUS_SPACE_MAXADDR_24BIT, 0, busdma_lock_mutex, &Giant, 498 &sbs->dmat)) { 499 isp_prt(isp, ISP_LOGERR, "could not create master dma tag"); 500 ISP_LOCK(isp); 501 return(1); 502 } 503 504 len = sizeof (XS_T **) * isp->isp_maxcmds; 505 isp->isp_xflist = (XS_T **) malloc(len, M_DEVBUF, M_WAITOK | M_ZERO); 506 if (isp->isp_xflist == NULL) { 507 isp_prt(isp, ISP_LOGERR, "cannot alloc xflist array"); 508 ISP_LOCK(isp); 509 return (1); 510 } 511 len = sizeof (bus_dmamap_t) * isp->isp_maxcmds; 512 sbs->dmaps = (bus_dmamap_t *) malloc(len, M_DEVBUF, M_WAITOK); 513 if (sbs->dmaps == NULL) { 514 isp_prt(isp, ISP_LOGERR, "can't alloc dma map storage"); 515 free(isp->isp_xflist, M_DEVBUF); 516 ISP_LOCK(isp); 517 return (1); 518 } 519 520 /* 521 * Allocate and map the request, result queues, plus FC scratch area. 522 */ 523 len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); 524 len += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp)); 525 526 ns = (len / PAGE_SIZE) + 1; 527 if (bus_dma_tag_create(sbs->dmat, QENTRY_LEN, BUS_SPACE_MAXADDR_24BIT+1, 528 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR_32BIT, NULL, NULL, 529 len, ns, BUS_SPACE_MAXADDR_24BIT, 0, busdma_lock_mutex, &Giant, 530 &isp->isp_cdmat)) { 531 isp_prt(isp, ISP_LOGERR, 532 "cannot create a dma tag for control spaces"); 533 free(sbs->dmaps, M_DEVBUF); 534 free(isp->isp_xflist, M_DEVBUF); 535 ISP_LOCK(isp); 536 return (1); 537 } 538 539 if (bus_dmamem_alloc(isp->isp_cdmat, (void **)&base, BUS_DMA_NOWAIT, 540 &isp->isp_cdmap) != 0) { 541 isp_prt(isp, ISP_LOGERR, 542 "cannot allocate %d bytes of CCB memory", len); 543 bus_dma_tag_destroy(isp->isp_cdmat); 544 free(isp->isp_xflist, M_DEVBUF); 545 free(sbs->dmaps, M_DEVBUF); 546 ISP_LOCK(isp); 547 return (1); 548 } 549 550 for (i = 0; i < isp->isp_maxcmds; i++) { 551 error = bus_dmamap_create(sbs->dmat, 0, &sbs->dmaps[i]); 552 if (error) { 553 isp_prt(isp, ISP_LOGERR, 554 "error %d creating per-cmd DMA maps", error); 555 while (--i >= 0) { 556 bus_dmamap_destroy(sbs->dmat, sbs->dmaps[i]); 557 } 558 goto bad; 559 } 560 } 561 562 im.isp = isp; 563 im.error = 0; 564 bus_dmamap_load(isp->isp_cdmat, isp->isp_cdmap, base, len, imc, &im, 0); 565 if (im.error) { 566 isp_prt(isp, ISP_LOGERR, 567 "error %d loading dma map for control areas", im.error); 568 goto bad; 569 } 570 571 isp->isp_rquest = base; 572 base += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); 573 ISP_LOCK(isp); 574 isp->isp_result = base; 575 return (0); 576 577bad: 578 bus_dmamem_free(isp->isp_cdmat, base, isp->isp_cdmap); 579 bus_dma_tag_destroy(isp->isp_cdmat); 580 free(isp->isp_xflist, M_DEVBUF); 581 free(sbs->dmaps, M_DEVBUF); 582 ISP_LOCK(isp); 583 isp->isp_rquest = NULL; 584 return (1); 585} 586 587typedef struct { 588 struct ispsoftc *isp; 589 void *cmd_token; 590 void *rq; 591 u_int16_t *nxtip; 592 u_int16_t optr; 593 u_int error; 594} mush_t; 595 596#define MUSHERR_NOQENTRIES -2 597 598 599static void dma2(void *, bus_dma_segment_t *, int, int); 600 601static void 602dma2(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error) 603{ 604 mush_t *mp; 605 struct ispsoftc *isp; 606 struct ccb_scsiio *csio; 607 struct isp_sbussoftc *sbs; 608 bus_dmamap_t *dp; 609 bus_dma_segment_t *eseg; 610 ispreq_t *rq; 611 int seglim, datalen; 612 u_int16_t nxti; 613 614 mp = (mush_t *) arg; 615 if (error) { 616 mp->error = error; 617 return; 618 } 619 620 if (nseg < 1) { 621 isp_prt(mp->isp, ISP_LOGERR, "bad segment count (%d)", nseg); 622 mp->error = EFAULT; 623 return; 624 } 625 csio = mp->cmd_token; 626 isp = mp->isp; 627 rq = mp->rq; 628 sbs = (struct isp_sbussoftc *)mp->isp; 629 dp = &sbs->dmaps[isp_handle_index(rq->req_handle)]; 630 nxti = *mp->nxtip; 631 632 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 633 bus_dmamap_sync(sbs->dmat, *dp, BUS_DMASYNC_PREREAD); 634 } else { 635 bus_dmamap_sync(sbs->dmat, *dp, BUS_DMASYNC_PREWRITE); 636 } 637 638 datalen = XS_XFRLEN(csio); 639 640 /* 641 * We're passed an initial partially filled in entry that 642 * has most fields filled in except for data transfer 643 * related values. 644 * 645 * Our job is to fill in the initial request queue entry and 646 * then to start allocating and filling in continuation entries 647 * until we've covered the entire transfer. 648 */ 649 650 if (csio->cdb_len > 12) { 651 seglim = 0; 652 } else { 653 seglim = ISP_RQDSEG; 654 } 655 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 656 rq->req_flags |= REQFLAG_DATA_IN; 657 } else { 658 rq->req_flags |= REQFLAG_DATA_OUT; 659 } 660 661 eseg = dm_segs + nseg; 662 663 while (datalen != 0 && rq->req_seg_count < seglim && dm_segs != eseg) { 664 rq->req_dataseg[rq->req_seg_count].ds_base = dm_segs->ds_addr; 665 rq->req_dataseg[rq->req_seg_count].ds_count = dm_segs->ds_len; 666 datalen -= dm_segs->ds_len; 667 rq->req_seg_count++; 668 dm_segs++; 669 } 670 671 while (datalen > 0 && dm_segs != eseg) { 672 u_int16_t onxti; 673 ispcontreq_t local, *crq = &local, *cqe; 674 675 cqe = (ispcontreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, nxti); 676 onxti = nxti; 677 nxti = ISP_NXT_QENTRY(onxti, RQUEST_QUEUE_LEN(isp)); 678 if (nxti == mp->optr) { 679 isp_prt(isp, ISP_LOGDEBUG0, "Request Queue Overflow++"); 680 mp->error = MUSHERR_NOQENTRIES; 681 return; 682 } 683 rq->req_header.rqs_entry_count++; 684 MEMZERO((void *)crq, sizeof (*crq)); 685 crq->req_header.rqs_entry_count = 1; 686 crq->req_header.rqs_entry_type = RQSTYPE_DATASEG; 687 688 seglim = 0; 689 while (datalen > 0 && seglim < ISP_CDSEG && dm_segs != eseg) { 690 crq->req_dataseg[seglim].ds_base = 691 dm_segs->ds_addr; 692 crq->req_dataseg[seglim].ds_count = 693 dm_segs->ds_len; 694 rq->req_seg_count++; 695 dm_segs++; 696 seglim++; 697 datalen -= dm_segs->ds_len; 698 } 699 isp_put_cont_req(isp, crq, cqe); 700 MEMORYBARRIER(isp, SYNC_REQUEST, onxti, QENTRY_LEN); 701 } 702 *mp->nxtip = nxti; 703} 704 705static int 706isp_sbus_dmasetup(struct ispsoftc *isp, struct ccb_scsiio *csio, ispreq_t *rq, 707 u_int16_t *nxtip, u_int16_t optr) 708{ 709 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *)isp; 710 ispreq_t *qep; 711 bus_dmamap_t *dp = NULL; 712 mush_t mush, *mp; 713 void (*eptr)(void *, bus_dma_segment_t *, int, int); 714 715 qep = (ispreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, isp->isp_reqidx); 716 eptr = dma2; 717 718 719 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_NONE || 720 (csio->dxfer_len == 0)) { 721 rq->req_seg_count = 1; 722 goto mbxsync; 723 } 724 725 /* 726 * Do a virtual grapevine step to collect info for 727 * the callback dma allocation that we have to use... 728 */ 729 mp = &mush; 730 mp->isp = isp; 731 mp->cmd_token = csio; 732 mp->rq = rq; 733 mp->nxtip = nxtip; 734 mp->optr = optr; 735 mp->error = 0; 736 737 if ((csio->ccb_h.flags & CAM_SCATTER_VALID) == 0) { 738 if ((csio->ccb_h.flags & CAM_DATA_PHYS) == 0) { 739 int error, s; 740 dp = &sbs->dmaps[isp_handle_index(rq->req_handle)]; 741 s = splsoftvm(); 742 error = bus_dmamap_load(sbs->dmat, *dp, 743 csio->data_ptr, csio->dxfer_len, eptr, mp, 0); 744 if (error == EINPROGRESS) { 745 bus_dmamap_unload(sbs->dmat, *dp); 746 mp->error = EINVAL; 747 isp_prt(isp, ISP_LOGERR, 748 "deferred dma allocation not supported"); 749 } else if (error && mp->error == 0) { 750#ifdef DIAGNOSTIC 751 isp_prt(isp, ISP_LOGERR, 752 "error %d in dma mapping code", error); 753#endif 754 mp->error = error; 755 } 756 splx(s); 757 } else { 758 /* Pointer to physical buffer */ 759 struct bus_dma_segment seg; 760 seg.ds_addr = (bus_addr_t)csio->data_ptr; 761 seg.ds_len = csio->dxfer_len; 762 (*eptr)(mp, &seg, 1, 0); 763 } 764 } else { 765 struct bus_dma_segment *segs; 766 767 if ((csio->ccb_h.flags & CAM_DATA_PHYS) != 0) { 768 isp_prt(isp, ISP_LOGERR, 769 "Physical segment pointers unsupported"); 770 mp->error = EINVAL; 771 } else if ((csio->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) { 772 isp_prt(isp, ISP_LOGERR, 773 "Virtual segment addresses unsupported"); 774 mp->error = EINVAL; 775 } else { 776 /* Just use the segments provided */ 777 segs = (struct bus_dma_segment *) csio->data_ptr; 778 (*eptr)(mp, segs, csio->sglist_cnt, 0); 779 } 780 } 781 if (mp->error) { 782 int retval = CMD_COMPLETE; 783 if (mp->error == MUSHERR_NOQENTRIES) { 784 retval = CMD_EAGAIN; 785 } else if (mp->error == EFBIG) { 786 XS_SETERR(csio, CAM_REQ_TOO_BIG); 787 } else if (mp->error == EINVAL) { 788 XS_SETERR(csio, CAM_REQ_INVALID); 789 } else { 790 XS_SETERR(csio, CAM_UNREC_HBA_ERROR); 791 } 792 return (retval); 793 } 794mbxsync: 795 switch (rq->req_header.rqs_entry_type) { 796 case RQSTYPE_REQUEST: 797 isp_put_request(isp, rq, qep); 798 break; 799 case RQSTYPE_CMDONLY: 800 isp_put_extended_request(isp, (ispextreq_t *)rq, 801 (ispextreq_t *)qep); 802 break; 803 } 804 return (CMD_QUEUED); 805} 806 807static void 808isp_sbus_dmateardown(struct ispsoftc *isp, XS_T *xs, u_int16_t handle) 809{ 810 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *)isp; 811 bus_dmamap_t *dp = &sbs->dmaps[isp_handle_index(handle)]; 812 if ((xs->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 813 bus_dmamap_sync(sbs->dmat, *dp, BUS_DMASYNC_POSTREAD); 814 } else { 815 bus_dmamap_sync(sbs->dmat, *dp, BUS_DMASYNC_POSTWRITE); 816 } 817 bus_dmamap_unload(sbs->dmat, *dp); 818} 819 820 821static void 822isp_sbus_reset1(struct ispsoftc *isp) 823{ 824 /* enable interrupts */ 825 ENABLE_INTS(isp); 826} 827 828static void 829isp_sbus_dumpregs(struct ispsoftc *isp, const char *msg) 830{ 831 if (msg) 832 printf("%s: %s\n", device_get_nameunit(isp->isp_dev), msg); 833 else 834 printf("%s:\n", device_get_nameunit(isp->isp_dev)); 835 printf(" biu_conf1=%x", ISP_READ(isp, BIU_CONF1)); 836 printf(" biu_icr=%x biu_isr=%x biu_sema=%x ", ISP_READ(isp, BIU_ICR), 837 ISP_READ(isp, BIU_ISR), ISP_READ(isp, BIU_SEMA)); 838 printf("risc_hccr=%x\n", ISP_READ(isp, HCCR)); 839 840 841 ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE); 842 printf(" cdma_conf=%x cdma_sts=%x cdma_fifostat=%x\n", 843 ISP_READ(isp, CDMA_CONF), ISP_READ(isp, CDMA_STATUS), 844 ISP_READ(isp, CDMA_FIFO_STS)); 845 printf(" ddma_conf=%x ddma_sts=%x ddma_fifostat=%x\n", 846 ISP_READ(isp, DDMA_CONF), ISP_READ(isp, DDMA_STATUS), 847 ISP_READ(isp, DDMA_FIFO_STS)); 848 printf(" sxp_int=%x sxp_gross=%x sxp(scsi_ctrl)=%x\n", 849 ISP_READ(isp, SXP_INTERRUPT), 850 ISP_READ(isp, SXP_GROSS_ERR), 851 ISP_READ(isp, SXP_PINS_CTRL)); 852 ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE); 853 printf(" mbox regs: %x %x %x %x %x\n", 854 ISP_READ(isp, OUTMAILBOX0), ISP_READ(isp, OUTMAILBOX1), 855 ISP_READ(isp, OUTMAILBOX2), ISP_READ(isp, OUTMAILBOX3), 856 ISP_READ(isp, OUTMAILBOX4)); 857} 858