isp_sbus.c revision 168240
187182Salfred/*- 287182Salfred * Copyright (c) 1997-2006 by Matthew Jacob 3254673Skib * All rights reserved. 487182Salfred * 5254673Skib * Redistribution and use in source and binary forms, with or without 6254673Skib * modification, are permitted provided that the following conditions 7254673Skib * are met: 887182Salfred * 1. Redistributions of source code must retain the above copyright 987182Salfred * notice immediately at the beginning of the file, without modification, 1087182Salfred * this list of conditions, and the following disclaimer. 1187182Salfred * 2. The name of the author may not be used to endorse or promote products 1287182Salfred * derived from this software without specific prior written permission. 1387182Salfred * 1487182Salfred * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1587182Salfred * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1687182Salfred * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1787182Salfred * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 1887182Salfred * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1987182Salfred * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2087182Salfred * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2187182Salfred * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2287182Salfred * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2387182Salfred * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2487182Salfred * SUCH DAMAGE. 2587182Salfred */ 2687182Salfred/* 2787182Salfred * SBus specific probe and attach routines for Qlogic ISP SCSI adapters. 2887182Salfred * FreeBSD Version. 2987182Salfred */ 3087182Salfred 3187182Salfred#include <sys/cdefs.h> 3287182Salfred__FBSDID("$FreeBSD: head/sys/dev/isp/isp_sbus.c 168240 2007-04-02 01:04:20Z mjacob $"); 33254673Skib 3487182Salfred#include <sys/param.h> 3587182Salfred#include <sys/systm.h> 3687182Salfred#if __FreeBSD_version >= 700000 3787182Salfred#include <sys/linker.h> 3887182Salfred#include <sys/firmware.h> 3987182Salfred#endif 4087182Salfred#include <sys/bus.h> 4187182Salfred#include <sys/kernel.h> 4287182Salfred#include <sys/module.h> 4387182Salfred#include <sys/resource.h> 4487182Salfred 4587182Salfred#include <dev/ofw/ofw_bus.h> 4687182Salfred 4787182Salfred#include <machine/bus.h> 4887182Salfred#include <machine/resource.h> 4987182Salfred#include <sys/rman.h> 5087182Salfred#include <sparc64/sbus/sbusvar.h> 5187857Sru 5287182Salfred#include <dev/isp/isp_freebsd.h> 5387182Salfred 5487857Srustatic uint32_t 55254673Skibisp_sbus_rd_reg(ispsoftc_t *, int); 5687182Salfredstatic void 57254673Skibisp_sbus_wr_reg(ispsoftc_t *, int, uint32_t); 58254673Skibstatic int 59254673Skibisp_sbus_rd_isr(ispsoftc_t *, uint32_t *, uint16_t *, uint16_t *); 60254673Skibstatic int isp_sbus_mbxdma(ispsoftc_t *); 61254673Skibstatic int 62254673Skibisp_sbus_dmasetup(ispsoftc_t *, XS_T *, ispreq_t *, uint32_t *, uint32_t); 63254673Skibstatic void 64254673Skibisp_sbus_dmateardown(ispsoftc_t *, XS_T *, uint32_t); 65254673Skib 66254673Skibstatic void isp_sbus_reset0(ispsoftc_t *); 67256114Sjmgstatic void isp_sbus_reset1(ispsoftc_t *); 68254673Skibstatic void isp_sbus_dumpregs(ispsoftc_t *, const char *); 69254673Skib 70254673Skibstatic struct ispmdvec mdvec = { 71254673Skib isp_sbus_rd_isr, 72254673Skib isp_sbus_rd_reg, 73254673Skib isp_sbus_wr_reg, 74254673Skib isp_sbus_mbxdma, 75254673Skib isp_sbus_dmasetup, 7687182Salfred isp_sbus_dmateardown, 77254673Skib isp_sbus_reset0, 7887182Salfred isp_sbus_reset1, 79254673Skib isp_sbus_dumpregs, 8087182Salfred NULL, 8187182Salfred BIU_BURST_ENABLE|BIU_PCI_CONF1_FIFO_64 8287182Salfred}; 83147647Shmp 8487182Salfredstatic int isp_sbus_probe (device_t); 85static int isp_sbus_attach (device_t); 86 87 88struct isp_sbussoftc { 89 ispsoftc_t sbus_isp; 90 device_t sbus_dev; 91 struct resource * sbus_reg; 92 void * ih; 93 int16_t sbus_poff[_NREG_BLKS]; 94 bus_dma_tag_t dmat; 95 bus_dmamap_t *dmaps; 96 sdparam sbus_param; 97 struct ispmdvec sbus_mdvec; 98 struct resource * sbus_ires; 99}; 100 101 102static device_method_t isp_sbus_methods[] = { 103 /* Device interface */ 104 DEVMETHOD(device_probe, isp_sbus_probe), 105 DEVMETHOD(device_attach, isp_sbus_attach), 106 { 0, 0 } 107}; 108static void isp_sbus_intr(void *); 109 110static driver_t isp_sbus_driver = { 111 "isp", isp_sbus_methods, sizeof (struct isp_sbussoftc) 112}; 113static devclass_t isp_devclass; 114DRIVER_MODULE(isp, sbus, isp_sbus_driver, isp_devclass, 0, 0); 115#if __FreeBSD_version < 700000 116extern ispfwfunc *isp_get_firmware_p; 117#endif 118 119static int 120isp_sbus_probe(device_t dev) 121{ 122 int found = 0; 123 const char *name = ofw_bus_get_name(dev); 124 if (strcmp(name, "SUNW,isp") == 0 || 125 strcmp(name, "QLGC,isp") == 0 || 126 strcmp(name, "ptisp") == 0 || 127 strcmp(name, "PTI,ptisp") == 0) { 128 found++; 129 } 130 if (!found) 131 return (ENXIO); 132 133 if (isp_announced == 0 && bootverbose) { 134 printf("Qlogic ISP Driver, FreeBSD Version %d.%d, " 135 "Core Version %d.%d\n", 136 ISP_PLATFORM_VERSION_MAJOR, ISP_PLATFORM_VERSION_MINOR, 137 ISP_CORE_VERSION_MAJOR, ISP_CORE_VERSION_MINOR); 138 isp_announced++; 139 } 140 return (0); 141} 142 143static int 144isp_sbus_attach(device_t dev) 145{ 146 struct resource *regs; 147 int tval, iqd, isp_debug, role, rid, ispburst; 148 struct isp_sbussoftc *sbs; 149 ispsoftc_t *isp = NULL; 150 int locksetup = 0; 151 int ints_setup = 0; 152 153 /* 154 * Figure out if we're supposed to skip this one. 155 * If we are, we actually go to ISP_ROLE_NONE. 156 */ 157 158 tval = 0; 159 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 160 "disable", &tval) == 0 && tval) { 161 device_printf(dev, "device is disabled\n"); 162 /* but return 0 so the !$)$)*!$*) unit isn't reused */ 163 return (0); 164 } 165 166 role = 0; 167 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 168 "role", &role) == 0 && 169 ((role & ~(ISP_ROLE_INITIATOR|ISP_ROLE_TARGET)) == 0)) { 170 device_printf(dev, "setting role to 0x%x\n", role); 171 } else { 172#ifdef ISP_TARGET_MODE 173 role = ISP_ROLE_INITIATOR|ISP_ROLE_TARGET; 174#else 175 role = ISP_DEFAULT_ROLES; 176#endif 177 } 178 179 sbs = malloc(sizeof (*sbs), M_DEVBUF, M_NOWAIT | M_ZERO); 180 if (sbs == NULL) { 181 device_printf(dev, "cannot allocate softc\n"); 182 return (ENOMEM); 183 } 184 185 regs = NULL; 186 iqd = 0; 187 rid = 0; 188 regs = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE); 189 if (regs == 0) { 190 device_printf(dev, "unable to map registers\n"); 191 goto bad; 192 } 193 sbs->sbus_dev = dev; 194 sbs->sbus_reg = regs; 195 sbs->sbus_mdvec = mdvec; 196 197 sbs->sbus_poff[BIU_BLOCK >> _BLK_REG_SHFT] = BIU_REGS_OFF; 198 sbs->sbus_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = SBUS_MBOX_REGS_OFF; 199 sbs->sbus_poff[SXP_BLOCK >> _BLK_REG_SHFT] = SBUS_SXP_REGS_OFF; 200 sbs->sbus_poff[RISC_BLOCK >> _BLK_REG_SHFT] = SBUS_RISC_REGS_OFF; 201 sbs->sbus_poff[DMA_BLOCK >> _BLK_REG_SHFT] = DMA_REGS_OFF; 202 isp = &sbs->sbus_isp; 203 isp->isp_bus_tag = rman_get_bustag(regs); 204 isp->isp_bus_handle = rman_get_bushandle(regs); 205 isp->isp_mdvec = &sbs->sbus_mdvec; 206 isp->isp_bustype = ISP_BT_SBUS; 207 isp->isp_type = ISP_HA_SCSI_UNKNOWN; 208 isp->isp_param = &sbs->sbus_param; 209 isp->isp_revision = 0; /* XXX */ 210 isp->isp_role = role; 211 isp->isp_dev = dev; 212 213 /* 214 * Get the clock frequency and convert it from HZ to MHz, 215 * rounding up. This defaults to 25MHz if there isn't a 216 * device specific one in the OFW device tree. 217 */ 218 sbs->sbus_mdvec.dv_clock = (sbus_get_clockfreq(dev) + 500000)/1000000; 219 220 /* 221 * Now figure out what the proper burst sizes, etc., to use. 222 * Unfortunately, there is no ddi_dma_burstsizes here which 223 * walks up the tree finding the limiting burst size node (if 224 * any). We just use what's here for isp. 225 */ 226 ispburst = sbus_get_burstsz(dev); 227 if (ispburst == 0) { 228 ispburst = SBUS_BURST_32 - 1; 229 } 230 sbs->sbus_mdvec.dv_conf1 = 0; 231 if (ispburst & (1 << 5)) { 232 sbs->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_32; 233 } else if (ispburst & (1 << 4)) { 234 sbs->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_16; 235 } else if (ispburst & (1 << 3)) { 236 sbs->sbus_mdvec.dv_conf1 = 237 BIU_SBUS_CONF1_BURST8 | BIU_SBUS_CONF1_FIFO_8; 238 } 239 if (sbs->sbus_mdvec.dv_conf1) { 240 sbs->sbus_mdvec.dv_conf1 |= BIU_BURST_ENABLE; 241 } 242 243 /* 244 * We don't trust NVRAM on SBus cards 245 */ 246 isp->isp_confopts |= ISP_CFG_NONVRAM; 247 248 /* 249 * Mark things if we're a PTI SBus adapter. 250 */ 251 if (strcmp("PTI,ptisp", ofw_bus_get_name(dev)) == 0 || 252 strcmp("ptisp", ofw_bus_get_name(dev)) == 0) { 253 SDPARAM(isp)->isp_ptisp = 1; 254 } 255 256 257#if __FreeBSD_version >= 700000 258 isp->isp_osinfo.fw = firmware_get("isp_1000"); 259 if (isp->isp_osinfo.fw) { 260 union { 261 const void *cp; 262 uint16_t *sp; 263 } stupid; 264 stupid.cp = isp->isp_osinfo.fw->data; 265 isp->isp_mdvec->dv_ispfw = stupid.sp; 266 } 267#else 268 /* 269 * Try and find firmware for this device. 270 */ 271 if (isp_get_firmware_p) { 272 (*isp_get_firmware_p)(0, 0, 0x1000, &sbs->sbus_mdvec.dv_ispfw); 273 } 274#endif 275 276 tval = 0; 277 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 278 "fwload_disable", &tval) == 0 && tval != 0) { 279 isp->isp_confopts |= ISP_CFG_NORELOAD; 280 } 281 282 isp->isp_osinfo.default_id = -1; 283 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 284 "iid", &tval) == 0) { 285 isp->isp_osinfo.default_id = tval; 286 isp->isp_confopts |= ISP_CFG_OWNLOOPID; 287 } 288 if (isp->isp_osinfo.default_id == -1) { 289 /* 290 * XXX: should be a way to get properties w/o having 291 * XXX: to call OF_xxx functions 292 */ 293 isp->isp_osinfo.default_id = 7; 294 } 295 296 isp_debug = 0; 297 (void) resource_int_value(device_get_name(dev), device_get_unit(dev), 298 "debug", &isp_debug); 299 300 /* Make sure the lock is set up. */ 301 mtx_init(&isp->isp_osinfo.lock, "isp", NULL, MTX_DEF); 302 locksetup++; 303 304 iqd = 0; 305 sbs->sbus_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd, 306 RF_ACTIVE | RF_SHAREABLE); 307 if (sbs->sbus_ires == NULL) { 308 device_printf(dev, "could not allocate interrupt\n"); 309 goto bad; 310 } 311 312 if (isp_setup_intr(dev, sbs->sbus_ires, ISP_IFLAGS, 313 NULL, isp_sbus_intr, isp, &sbs->ih)) { 314 device_printf(dev, "could not setup interrupt\n"); 315 goto bad; 316 } 317 ints_setup++; 318 319 /* 320 * Set up logging levels. 321 */ 322 if (isp_debug) { 323 isp->isp_dblev = isp_debug; 324 } else { 325 isp->isp_dblev = ISP_LOGWARN|ISP_LOGERR; 326 } 327 if (bootverbose) { 328 isp->isp_dblev |= ISP_LOGCONFIG|ISP_LOGINFO; 329 } 330 331 /* 332 * Make sure we're in reset state. 333 */ 334 ISP_LOCK(isp); 335 isp_reset(isp); 336 if (isp->isp_state != ISP_RESETSTATE) { 337 isp_uninit(isp); 338 ISP_UNLOCK(isp); 339 goto bad; 340 } 341 isp_init(isp); 342 if (isp->isp_role != ISP_ROLE_NONE && isp->isp_state != ISP_INITSTATE) { 343 isp_uninit(isp); 344 ISP_UNLOCK(isp); 345 goto bad; 346 } 347 isp_attach(isp); 348 if (isp->isp_role != ISP_ROLE_NONE && isp->isp_state != ISP_RUNSTATE) { 349 isp_uninit(isp); 350 ISP_UNLOCK(isp); 351 goto bad; 352 } 353 ISP_UNLOCK(isp); 354 return (0); 355 356bad: 357 358 if (sbs && ints_setup) { 359 (void) bus_teardown_intr(dev, sbs->sbus_ires, sbs->ih); 360 } 361 362 if (sbs && sbs->sbus_ires) { 363 bus_release_resource(dev, SYS_RES_IRQ, iqd, sbs->sbus_ires); 364 } 365 366 if (locksetup && isp) { 367 mtx_destroy(&isp->isp_osinfo.lock); 368 } 369 370 if (regs) { 371 (void) bus_release_resource(dev, 0, 0, regs); 372 } 373 374 if (sbs) { 375 if (sbs->sbus_isp.isp_param) { 376 free(sbs->sbus_isp.isp_param, M_DEVBUF); 377 } 378 free(sbs, M_DEVBUF); 379 } 380 return (ENXIO); 381} 382 383static void 384isp_sbus_intr(void *arg) 385{ 386 ispsoftc_t *isp = arg; 387 uint32_t isr; 388 uint16_t sema, mbox; 389 390 ISP_LOCK(isp); 391 isp->isp_intcnt++; 392 if (ISP_READ_ISR(isp, &isr, &sema, &mbox) == 0) { 393 isp->isp_intbogus++; 394 } else { 395 isp_intr(isp, isr, sema, mbox); 396 } 397 ISP_UNLOCK(isp); 398} 399 400#define IspVirt2Off(a, x) \ 401 (((struct isp_sbussoftc *)a)->sbus_poff[((x) & _BLK_REG_MASK) >> \ 402 _BLK_REG_SHFT] + ((x) & 0xff)) 403 404#define BXR2(sbc, off) \ 405 bus_space_read_2(isp->isp_bus_tag, isp->isp_bus_handle, off) 406 407static int 408isp_sbus_rd_isr(ispsoftc_t *isp, uint32_t *isrp, uint16_t *semap, uint16_t *mbp) 409{ 410 uint16_t isr, sema; 411 412 isr = BXR2(sbc, IspVirt2Off(isp, BIU_ISR)); 413 sema = BXR2(sbc, IspVirt2Off(isp, BIU_SEMA)); 414 isp_prt(isp, ISP_LOGDEBUG3, "ISR 0x%x SEMA 0x%x", isr, sema); 415 isr &= INT_PENDING_MASK(isp); 416 sema &= BIU_SEMA_LOCK; 417 if (isr == 0 && sema == 0) { 418 return (0); 419 } 420 *isrp = isr; 421 if ((*semap = sema) != 0) { 422 *mbp = BXR2(sbc, IspVirt2Off(isp, OUTMAILBOX0)); 423 } 424 return (1); 425} 426 427static uint32_t 428isp_sbus_rd_reg(ispsoftc_t *isp, int regoff) 429{ 430 uint16_t rval; 431 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp; 432 int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; 433 offset += (regoff & 0xff); 434 rval = bus_space_read_2(isp->isp_bus_tag, isp->isp_bus_handle, offset); 435 isp_prt(isp, ISP_LOGDEBUG3, 436 "isp_sbus_rd_reg(off %x) = %x", regoff, rval); 437 return (rval); 438} 439 440static void 441isp_sbus_wr_reg(ispsoftc_t *isp, int regoff, uint32_t val) 442{ 443 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp; 444 int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; 445 offset += (regoff & 0xff); 446 isp_prt(isp, ISP_LOGDEBUG3, 447 "isp_sbus_wr_reg(off %x) = %x", regoff, val); 448 bus_space_write_2(isp->isp_bus_tag, isp->isp_bus_handle, offset, val); 449 MEMORYBARRIER(isp, SYNC_REG, offset, 2); 450} 451 452struct imush { 453 ispsoftc_t *isp; 454 int error; 455}; 456 457static void imc(void *, bus_dma_segment_t *, int, int); 458 459static void 460imc(void *arg, bus_dma_segment_t *segs, int nseg, int error) 461{ 462 struct imush *imushp = (struct imush *) arg; 463 if (error) { 464 imushp->error = error; 465 } else { 466 ispsoftc_t *isp =imushp->isp; 467 bus_addr_t addr = segs->ds_addr; 468 469 isp->isp_rquest_dma = addr; 470 addr += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); 471 isp->isp_result_dma = addr; 472 } 473} 474 475static int 476isp_sbus_mbxdma(ispsoftc_t *isp) 477{ 478 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *)isp; 479 caddr_t base; 480 uint32_t len; 481 int i, error, ns; 482 struct imush im; 483 484 /* 485 * Already been here? If so, leave... 486 */ 487 if (isp->isp_rquest) { 488 return (0); 489 } 490 491 ISP_UNLOCK(isp); 492 493 if (isp_dma_tag_create(BUS_DMA_ROOTARG(sbs->sbus_dev), 1, 494 BUS_SPACE_MAXADDR_24BIT+1, BUS_SPACE_MAXADDR_32BIT, 495 BUS_SPACE_MAXADDR_32BIT, NULL, NULL, BUS_SPACE_MAXSIZE_32BIT, 496 ISP_NSEGS, BUS_SPACE_MAXADDR_24BIT, 0, &sbs->dmat)) { 497 isp_prt(isp, ISP_LOGERR, "could not create master dma tag"); 498 ISP_LOCK(isp); 499 return(1); 500 } 501 502 len = sizeof (XS_T **) * isp->isp_maxcmds; 503 isp->isp_xflist = (XS_T **) malloc(len, M_DEVBUF, M_WAITOK | M_ZERO); 504 if (isp->isp_xflist == NULL) { 505 isp_prt(isp, ISP_LOGERR, "cannot alloc xflist array"); 506 ISP_LOCK(isp); 507 return (1); 508 } 509 len = sizeof (bus_dmamap_t) * isp->isp_maxcmds; 510 sbs->dmaps = (bus_dmamap_t *) malloc(len, M_DEVBUF, M_WAITOK); 511 if (sbs->dmaps == NULL) { 512 isp_prt(isp, ISP_LOGERR, "can't alloc dma map storage"); 513 free(isp->isp_xflist, M_DEVBUF); 514 ISP_LOCK(isp); 515 return (1); 516 } 517 518 /* 519 * Allocate and map the request, result queues, plus FC scratch area. 520 */ 521 len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); 522 len += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp)); 523 524 ns = (len / PAGE_SIZE) + 1; 525 if (bus_dma_tag_create(sbs->dmat, QENTRY_LEN, BUS_SPACE_MAXADDR_24BIT+1, 526 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR_32BIT, NULL, NULL, 527 len, ns, BUS_SPACE_MAXADDR_24BIT, 0, busdma_lock_mutex, &Giant, 528 &isp->isp_cdmat)) { 529 isp_prt(isp, ISP_LOGERR, 530 "cannot create a dma tag for control spaces"); 531 free(sbs->dmaps, M_DEVBUF); 532 free(isp->isp_xflist, M_DEVBUF); 533 ISP_LOCK(isp); 534 return (1); 535 } 536 537 if (bus_dmamem_alloc(isp->isp_cdmat, (void **)&base, BUS_DMA_NOWAIT, 538 &isp->isp_cdmap) != 0) { 539 isp_prt(isp, ISP_LOGERR, 540 "cannot allocate %d bytes of CCB memory", len); 541 bus_dma_tag_destroy(isp->isp_cdmat); 542 free(isp->isp_xflist, M_DEVBUF); 543 free(sbs->dmaps, M_DEVBUF); 544 ISP_LOCK(isp); 545 return (1); 546 } 547 548 for (i = 0; i < isp->isp_maxcmds; i++) { 549 error = bus_dmamap_create(sbs->dmat, 0, &sbs->dmaps[i]); 550 if (error) { 551 isp_prt(isp, ISP_LOGERR, 552 "error %d creating per-cmd DMA maps", error); 553 while (--i >= 0) { 554 bus_dmamap_destroy(sbs->dmat, sbs->dmaps[i]); 555 } 556 goto bad; 557 } 558 } 559 560 im.isp = isp; 561 im.error = 0; 562 bus_dmamap_load(isp->isp_cdmat, isp->isp_cdmap, base, len, imc, &im, 0); 563 if (im.error) { 564 isp_prt(isp, ISP_LOGERR, 565 "error %d loading dma map for control areas", im.error); 566 goto bad; 567 } 568 569 isp->isp_rquest = base; 570 base += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); 571 ISP_LOCK(isp); 572 isp->isp_result = base; 573 return (0); 574 575bad: 576 bus_dmamem_free(isp->isp_cdmat, base, isp->isp_cdmap); 577 bus_dma_tag_destroy(isp->isp_cdmat); 578 free(isp->isp_xflist, M_DEVBUF); 579 free(sbs->dmaps, M_DEVBUF); 580 ISP_LOCK(isp); 581 isp->isp_rquest = NULL; 582 return (1); 583} 584 585typedef struct { 586 ispsoftc_t *isp; 587 void *cmd_token; 588 void *rq; 589 uint32_t *nxtip; 590 uint32_t optr; 591 int error; 592} mush_t; 593 594#define MUSHERR_NOQENTRIES -2 595 596 597static void dma2(void *, bus_dma_segment_t *, int, int); 598 599static void 600dma2(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error) 601{ 602 mush_t *mp; 603 ispsoftc_t *isp; 604 struct ccb_scsiio *csio; 605 struct isp_sbussoftc *sbs; 606 bus_dmamap_t *dp; 607 bus_dma_segment_t *eseg; 608 ispreq_t *rq; 609 int seglim, datalen; 610 uint16_t nxti; 611 612 mp = (mush_t *) arg; 613 if (error) { 614 mp->error = error; 615 return; 616 } 617 618 if (nseg < 1) { 619 isp_prt(mp->isp, ISP_LOGERR, "bad segment count (%d)", nseg); 620 mp->error = EFAULT; 621 return; 622 } 623 csio = mp->cmd_token; 624 isp = mp->isp; 625 rq = mp->rq; 626 sbs = (struct isp_sbussoftc *)mp->isp; 627 dp = &sbs->dmaps[isp_handle_index(rq->req_handle & ISP_HANDLE_MASK)]; 628 nxti = *mp->nxtip; 629 630 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 631 bus_dmamap_sync(sbs->dmat, *dp, BUS_DMASYNC_PREREAD); 632 } else { 633 bus_dmamap_sync(sbs->dmat, *dp, BUS_DMASYNC_PREWRITE); 634 } 635 636 datalen = XS_XFRLEN(csio); 637 638 /* 639 * We're passed an initial partially filled in entry that 640 * has most fields filled in except for data transfer 641 * related values. 642 * 643 * Our job is to fill in the initial request queue entry and 644 * then to start allocating and filling in continuation entries 645 * until we've covered the entire transfer. 646 */ 647 648 if (csio->cdb_len > 12) { 649 seglim = 0; 650 } else { 651 seglim = ISP_RQDSEG; 652 } 653 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 654 rq->req_flags |= REQFLAG_DATA_IN; 655 } else { 656 rq->req_flags |= REQFLAG_DATA_OUT; 657 } 658 659 eseg = dm_segs + nseg; 660 661 while (datalen != 0 && rq->req_seg_count < seglim && dm_segs != eseg) { 662 rq->req_dataseg[rq->req_seg_count].ds_base = dm_segs->ds_addr; 663 rq->req_dataseg[rq->req_seg_count].ds_count = dm_segs->ds_len; 664 datalen -= dm_segs->ds_len; 665 rq->req_seg_count++; 666 dm_segs++; 667 } 668 669 while (datalen > 0 && dm_segs != eseg) { 670 uint16_t onxti; 671 ispcontreq_t local, *crq = &local, *cqe; 672 673 cqe = (ispcontreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, nxti); 674 onxti = nxti; 675 nxti = ISP_NXT_QENTRY(onxti, RQUEST_QUEUE_LEN(isp)); 676 if (nxti == mp->optr) { 677 isp_prt(isp, ISP_LOGDEBUG0, "Request Queue Overflow++"); 678 mp->error = MUSHERR_NOQENTRIES; 679 return; 680 } 681 rq->req_header.rqs_entry_count++; 682 MEMZERO((void *)crq, sizeof (*crq)); 683 crq->req_header.rqs_entry_count = 1; 684 crq->req_header.rqs_entry_type = RQSTYPE_DATASEG; 685 686 seglim = 0; 687 while (datalen > 0 && seglim < ISP_CDSEG && dm_segs != eseg) { 688 crq->req_dataseg[seglim].ds_base = 689 dm_segs->ds_addr; 690 crq->req_dataseg[seglim].ds_count = 691 dm_segs->ds_len; 692 rq->req_seg_count++; 693 dm_segs++; 694 seglim++; 695 datalen -= dm_segs->ds_len; 696 } 697 isp_put_cont_req(isp, crq, cqe); 698 MEMORYBARRIER(isp, SYNC_REQUEST, onxti, QENTRY_LEN); 699 } 700 *mp->nxtip = nxti; 701} 702 703static int 704isp_sbus_dmasetup(ispsoftc_t *isp, struct ccb_scsiio *csio, ispreq_t *rq, 705 uint32_t *nxtip, uint32_t optr) 706{ 707 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *)isp; 708 ispreq_t *qep; 709 bus_dmamap_t *dp = NULL; 710 mush_t mush, *mp; 711 void (*eptr)(void *, bus_dma_segment_t *, int, int); 712 713 qep = (ispreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, isp->isp_reqidx); 714 eptr = dma2; 715 716 717 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_NONE || 718 (csio->dxfer_len == 0)) { 719 rq->req_seg_count = 1; 720 goto mbxsync; 721 } 722 723 /* 724 * Do a virtual grapevine step to collect info for 725 * the callback dma allocation that we have to use... 726 */ 727 mp = &mush; 728 mp->isp = isp; 729 mp->cmd_token = csio; 730 mp->rq = rq; 731 mp->nxtip = nxtip; 732 mp->optr = optr; 733 mp->error = 0; 734 735 if ((csio->ccb_h.flags & CAM_SCATTER_VALID) == 0) { 736 if ((csio->ccb_h.flags & CAM_DATA_PHYS) == 0) { 737 int error, s; 738 dp = &sbs->dmaps[isp_handle_index( 739 rq->req_handle & ISP_HANDLE_MASK)]; 740 s = splsoftvm(); 741 error = bus_dmamap_load(sbs->dmat, *dp, 742 csio->data_ptr, csio->dxfer_len, eptr, mp, 0); 743 if (error == EINPROGRESS) { 744 bus_dmamap_unload(sbs->dmat, *dp); 745 mp->error = EINVAL; 746 isp_prt(isp, ISP_LOGERR, 747 "deferred dma allocation not supported"); 748 } else if (error && mp->error == 0) { 749#ifdef DIAGNOSTIC 750 isp_prt(isp, ISP_LOGERR, 751 "error %d in dma mapping code", error); 752#endif 753 mp->error = error; 754 } 755 splx(s); 756 } else { 757 /* Pointer to physical buffer */ 758 struct bus_dma_segment seg; 759 seg.ds_addr = (bus_addr_t)csio->data_ptr; 760 seg.ds_len = csio->dxfer_len; 761 (*eptr)(mp, &seg, 1, 0); 762 } 763 } else { 764 struct bus_dma_segment *segs; 765 766 if ((csio->ccb_h.flags & CAM_DATA_PHYS) != 0) { 767 isp_prt(isp, ISP_LOGERR, 768 "Physical segment pointers unsupported"); 769 mp->error = EINVAL; 770 } else if ((csio->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) { 771 isp_prt(isp, ISP_LOGERR, 772 "Virtual segment addresses unsupported"); 773 mp->error = EINVAL; 774 } else { 775 /* Just use the segments provided */ 776 segs = (struct bus_dma_segment *) csio->data_ptr; 777 (*eptr)(mp, segs, csio->sglist_cnt, 0); 778 } 779 } 780 if (mp->error) { 781 int retval = CMD_COMPLETE; 782 if (mp->error == MUSHERR_NOQENTRIES) { 783 retval = CMD_EAGAIN; 784 } else if (mp->error == EFBIG) { 785 XS_SETERR(csio, CAM_REQ_TOO_BIG); 786 } else if (mp->error == EINVAL) { 787 XS_SETERR(csio, CAM_REQ_INVALID); 788 } else { 789 XS_SETERR(csio, CAM_UNREC_HBA_ERROR); 790 } 791 return (retval); 792 } 793mbxsync: 794 if (isp->isp_dblev & ISP_LOGDEBUG1) { 795 isp_print_bytes(isp, "Request Queue Entry", QENTRY_LEN, rq); 796 } 797 switch (rq->req_header.rqs_entry_type) { 798 case RQSTYPE_REQUEST: 799 isp_put_request(isp, rq, qep); 800 break; 801 case RQSTYPE_CMDONLY: 802 isp_put_extended_request(isp, (ispextreq_t *)rq, 803 (ispextreq_t *)qep); 804 break; 805 } 806 return (CMD_QUEUED); 807} 808 809static void 810isp_sbus_dmateardown(ispsoftc_t *isp, XS_T *xs, uint32_t handle) 811{ 812 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *)isp; 813 bus_dmamap_t *dp; 814 dp = &sbs->dmaps[isp_handle_index(handle & ISP_HANDLE_MASK)]; 815 if ((xs->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 816 bus_dmamap_sync(sbs->dmat, *dp, BUS_DMASYNC_POSTREAD); 817 } else { 818 bus_dmamap_sync(sbs->dmat, *dp, BUS_DMASYNC_POSTWRITE); 819 } 820 bus_dmamap_unload(sbs->dmat, *dp); 821} 822 823static void 824isp_sbus_reset0(ispsoftc_t *isp) 825{ 826 ISP_DISABLE_INTS(isp); 827} 828 829static void 830isp_sbus_reset1(ispsoftc_t *isp) 831{ 832 ISP_ENABLE_INTS(isp); 833} 834 835static void 836isp_sbus_dumpregs(ispsoftc_t *isp, const char *msg) 837{ 838 if (msg) 839 printf("%s: %s\n", device_get_nameunit(isp->isp_dev), msg); 840 else 841 printf("%s:\n", device_get_nameunit(isp->isp_dev)); 842 printf(" biu_conf1=%x", ISP_READ(isp, BIU_CONF1)); 843 printf(" biu_icr=%x biu_isr=%x biu_sema=%x ", ISP_READ(isp, BIU_ICR), 844 ISP_READ(isp, BIU_ISR), ISP_READ(isp, BIU_SEMA)); 845 printf("risc_hccr=%x\n", ISP_READ(isp, HCCR)); 846 847 848 ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE); 849 printf(" cdma_conf=%x cdma_sts=%x cdma_fifostat=%x\n", 850 ISP_READ(isp, CDMA_CONF), ISP_READ(isp, CDMA_STATUS), 851 ISP_READ(isp, CDMA_FIFO_STS)); 852 printf(" ddma_conf=%x ddma_sts=%x ddma_fifostat=%x\n", 853 ISP_READ(isp, DDMA_CONF), ISP_READ(isp, DDMA_STATUS), 854 ISP_READ(isp, DDMA_FIFO_STS)); 855 printf(" sxp_int=%x sxp_gross=%x sxp(scsi_ctrl)=%x\n", 856 ISP_READ(isp, SXP_INTERRUPT), 857 ISP_READ(isp, SXP_GROSS_ERR), 858 ISP_READ(isp, SXP_PINS_CTRL)); 859 ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE); 860 printf(" mbox regs: %x %x %x %x %x\n", 861 ISP_READ(isp, OUTMAILBOX0), ISP_READ(isp, OUTMAILBOX1), 862 ISP_READ(isp, OUTMAILBOX2), ISP_READ(isp, OUTMAILBOX3), 863 ISP_READ(isp, OUTMAILBOX4)); 864} 865