isp_sbus.c revision 173359
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 173359 2007-11-05 11:22:18Z scottl $"); 33 34#include <sys/param.h> 35#include <sys/systm.h> 36#if __FreeBSD_version >= 700000 37#include <sys/linker.h> 38#include <sys/firmware.h> 39#endif 40#include <sys/bus.h> 41#include <sys/kernel.h> 42#include <sys/module.h> 43#include <sys/resource.h> 44 45#include <dev/ofw/ofw_bus.h> 46 47#include <machine/bus.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 55isp_sbus_rd_reg(ispsoftc_t *, int); 56static void 57isp_sbus_wr_reg(ispsoftc_t *, int, uint32_t); 58static int 59isp_sbus_rd_isr(ispsoftc_t *, uint32_t *, uint16_t *, uint16_t *); 60static int isp_sbus_mbxdma(ispsoftc_t *); 61static int 62isp_sbus_dmasetup(ispsoftc_t *, XS_T *, ispreq_t *, uint32_t *, uint32_t); 63 64static void isp_sbus_reset0(ispsoftc_t *); 65static void isp_sbus_reset1(ispsoftc_t *); 66static void isp_sbus_dumpregs(ispsoftc_t *, const char *); 67 68static struct ispmdvec mdvec = { 69 isp_sbus_rd_isr, 70 isp_sbus_rd_reg, 71 isp_sbus_wr_reg, 72 isp_sbus_mbxdma, 73 isp_sbus_dmasetup, 74 isp_common_dmateardown, 75 isp_sbus_reset0, 76 isp_sbus_reset1, 77 isp_sbus_dumpregs, 78 NULL, 79 BIU_BURST_ENABLE|BIU_PCI_CONF1_FIFO_64 80}; 81 82static int isp_sbus_probe (device_t); 83static int isp_sbus_attach (device_t); 84 85 86#define ISP_SBD(isp) ((struct isp_sbussoftc *)isp)->sbus_dev 87struct isp_sbussoftc { 88 ispsoftc_t sbus_isp; 89 device_t sbus_dev; 90 struct resource * sbus_reg; 91 void * ih; 92 int16_t sbus_poff[_NREG_BLKS]; 93 sdparam sbus_param; 94 struct ispmdvec sbus_mdvec; 95 struct resource * sbus_ires; 96}; 97 98 99static device_method_t isp_sbus_methods[] = { 100 /* Device interface */ 101 DEVMETHOD(device_probe, isp_sbus_probe), 102 DEVMETHOD(device_attach, isp_sbus_attach), 103 { 0, 0 } 104}; 105 106static driver_t isp_sbus_driver = { 107 "isp", isp_sbus_methods, sizeof (struct isp_sbussoftc) 108}; 109static devclass_t isp_devclass; 110DRIVER_MODULE(isp, sbus, isp_sbus_driver, isp_devclass, 0, 0); 111#if __FreeBSD_version < 700000 112extern ispfwfunc *isp_get_firmware_p; 113#endif 114 115static int 116isp_sbus_probe(device_t dev) 117{ 118 int found = 0; 119 const char *name = ofw_bus_get_name(dev); 120 if (strcmp(name, "SUNW,isp") == 0 || 121 strcmp(name, "QLGC,isp") == 0 || 122 strcmp(name, "ptisp") == 0 || 123 strcmp(name, "PTI,ptisp") == 0) { 124 found++; 125 } 126 if (!found) 127 return (ENXIO); 128 129 if (isp_announced == 0 && bootverbose) { 130 printf("Qlogic ISP Driver, FreeBSD Version %d.%d, " 131 "Core Version %d.%d\n", 132 ISP_PLATFORM_VERSION_MAJOR, ISP_PLATFORM_VERSION_MINOR, 133 ISP_CORE_VERSION_MAJOR, ISP_CORE_VERSION_MINOR); 134 isp_announced++; 135 } 136 return (0); 137} 138 139static int 140isp_sbus_attach(device_t dev) 141{ 142 struct resource *regs; 143 int tval, iqd, isp_debug, role, rid, ispburst; 144 struct isp_sbussoftc *sbs; 145 ispsoftc_t *isp = NULL; 146 int locksetup = 0; 147 int ints_setup = 0; 148 149 /* 150 * Figure out if we're supposed to skip this one. 151 * If we are, we actually go to ISP_ROLE_NONE. 152 */ 153 154 tval = 0; 155 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 156 "disable", &tval) == 0 && tval) { 157 device_printf(dev, "device is disabled\n"); 158 /* but return 0 so the !$)$)*!$*) unit isn't reused */ 159 return (0); 160 } 161 162 role = 0; 163 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 164 "role", &role) == 0 && 165 ((role & ~(ISP_ROLE_INITIATOR|ISP_ROLE_TARGET)) == 0)) { 166 device_printf(dev, "setting role to 0x%x\n", role); 167 } else { 168#ifdef ISP_TARGET_MODE 169 role = ISP_ROLE_INITIATOR|ISP_ROLE_TARGET; 170#else 171 role = ISP_DEFAULT_ROLES; 172#endif 173 } 174 175 sbs = malloc(sizeof (*sbs), M_DEVBUF, M_NOWAIT | M_ZERO); 176 if (sbs == NULL) { 177 device_printf(dev, "cannot allocate softc\n"); 178 return (ENOMEM); 179 } 180 181 regs = NULL; 182 iqd = 0; 183 rid = 0; 184 regs = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE); 185 if (regs == 0) { 186 device_printf(dev, "unable to map registers\n"); 187 goto bad; 188 } 189 sbs->sbus_dev = dev; 190 sbs->sbus_reg = regs; 191 sbs->sbus_mdvec = mdvec; 192 193 sbs->sbus_poff[BIU_BLOCK >> _BLK_REG_SHFT] = BIU_REGS_OFF; 194 sbs->sbus_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = SBUS_MBOX_REGS_OFF; 195 sbs->sbus_poff[SXP_BLOCK >> _BLK_REG_SHFT] = SBUS_SXP_REGS_OFF; 196 sbs->sbus_poff[RISC_BLOCK >> _BLK_REG_SHFT] = SBUS_RISC_REGS_OFF; 197 sbs->sbus_poff[DMA_BLOCK >> _BLK_REG_SHFT] = DMA_REGS_OFF; 198 isp = &sbs->sbus_isp; 199 isp->isp_bus_tag = rman_get_bustag(regs); 200 isp->isp_bus_handle = rman_get_bushandle(regs); 201 isp->isp_mdvec = &sbs->sbus_mdvec; 202 isp->isp_bustype = ISP_BT_SBUS; 203 isp->isp_type = ISP_HA_SCSI_UNKNOWN; 204 isp->isp_param = &sbs->sbus_param; 205 isp->isp_revision = 0; /* XXX */ 206 isp->isp_role = role; 207 isp->isp_dev = dev; 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)->isp_ptisp = 1; 250 } 251 252 253#if __FreeBSD_version >= 700000 254 isp->isp_osinfo.fw = firmware_get("isp_1000"); 255 if (isp->isp_osinfo.fw) { 256 union { 257 const void *cp; 258 uint16_t *sp; 259 } stupid; 260 stupid.cp = isp->isp_osinfo.fw->data; 261 isp->isp_mdvec->dv_ispfw = stupid.sp; 262 } 263#else 264 /* 265 * Try and find firmware for this device. 266 */ 267 if (isp_get_firmware_p) { 268 (*isp_get_firmware_p)(0, 0, 0x1000, &sbs->sbus_mdvec.dv_ispfw); 269 } 270#endif 271 272 tval = 0; 273 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 274 "fwload_disable", &tval) == 0 && tval != 0) { 275 isp->isp_confopts |= ISP_CFG_NORELOAD; 276 } 277 278 isp->isp_osinfo.default_id = -1; 279 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 280 "iid", &tval) == 0) { 281 isp->isp_osinfo.default_id = tval; 282 isp->isp_confopts |= ISP_CFG_OWNLOOPID; 283 } 284 if (isp->isp_osinfo.default_id == -1) { 285 /* 286 * XXX: should be a way to get properties w/o having 287 * XXX: to call OF_xxx functions 288 */ 289 isp->isp_osinfo.default_id = 7; 290 } 291 292 isp_debug = 0; 293 (void) resource_int_value(device_get_name(dev), device_get_unit(dev), 294 "debug", &isp_debug); 295 296 /* Make sure the lock is set up. */ 297 mtx_init(&isp->isp_osinfo.lock, "isp", NULL, MTX_DEF); 298 locksetup++; 299 300 iqd = 0; 301 sbs->sbus_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd, 302 RF_ACTIVE | RF_SHAREABLE); 303 if (sbs->sbus_ires == NULL) { 304 device_printf(dev, "could not allocate interrupt\n"); 305 goto bad; 306 } 307 308 if (isp_setup_intr(dev, sbs->sbus_ires, ISP_IFLAGS, NULL, 309 isp_platform_intr, isp, &sbs->ih)) { 310 device_printf(dev, "could not setup interrupt\n"); 311 goto bad; 312 } 313 ints_setup++; 314 315 /* 316 * Set up logging levels. 317 */ 318 if (isp_debug) { 319 isp->isp_dblev = isp_debug; 320 } else { 321 isp->isp_dblev = ISP_LOGWARN|ISP_LOGERR; 322 } 323 if (bootverbose) { 324 isp->isp_dblev |= ISP_LOGCONFIG|ISP_LOGINFO; 325 } 326 327 /* 328 * Make sure we're in reset state. 329 */ 330 ISP_LOCK(isp); 331 isp_reset(isp); 332 if (isp->isp_state != ISP_RESETSTATE) { 333 isp_uninit(isp); 334 ISP_UNLOCK(isp); 335 goto bad; 336 } 337 isp_init(isp); 338 if (isp->isp_role != ISP_ROLE_NONE && isp->isp_state != ISP_INITSTATE) { 339 isp_uninit(isp); 340 ISP_UNLOCK(isp); 341 goto bad; 342 } 343 isp_attach(isp); 344 if (isp->isp_role != ISP_ROLE_NONE && isp->isp_state != ISP_RUNSTATE) { 345 isp_uninit(isp); 346 ISP_UNLOCK(isp); 347 goto bad; 348 } 349 ISP_UNLOCK(isp); 350 return (0); 351 352bad: 353 354 if (sbs && ints_setup) { 355 (void) bus_teardown_intr(dev, sbs->sbus_ires, sbs->ih); 356 } 357 358 if (sbs && sbs->sbus_ires) { 359 bus_release_resource(dev, SYS_RES_IRQ, iqd, sbs->sbus_ires); 360 } 361 362 if (locksetup && isp) { 363 mtx_destroy(&isp->isp_osinfo.lock); 364 } 365 366 if (regs) { 367 (void) bus_release_resource(dev, 0, 0, regs); 368 } 369 370 if (sbs) { 371 if (sbs->sbus_isp.isp_param) { 372 free(sbs->sbus_isp.isp_param, M_DEVBUF); 373 } 374 free(sbs, M_DEVBUF); 375 } 376 return (ENXIO); 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, uint32_t *isrp, uint16_t *semap, uint16_t *mbp) 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 *mbp = BXR2(sbc, IspVirt2Off(isp, OUTMAILBOX0)); 402 } 403 return (1); 404} 405 406static uint32_t 407isp_sbus_rd_reg(ispsoftc_t *isp, int regoff) 408{ 409 uint16_t rval; 410 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp; 411 int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; 412 offset += (regoff & 0xff); 413 rval = bus_space_read_2(isp->isp_bus_tag, isp->isp_bus_handle, offset); 414 isp_prt(isp, ISP_LOGDEBUG3, 415 "isp_sbus_rd_reg(off %x) = %x", regoff, rval); 416 return (rval); 417} 418 419static void 420isp_sbus_wr_reg(ispsoftc_t *isp, int regoff, uint32_t val) 421{ 422 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp; 423 int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; 424 offset += (regoff & 0xff); 425 isp_prt(isp, ISP_LOGDEBUG3, 426 "isp_sbus_wr_reg(off %x) = %x", regoff, val); 427 bus_space_write_2(isp->isp_bus_tag, isp->isp_bus_handle, offset, val); 428 MEMORYBARRIER(isp, SYNC_REG, offset, 2); 429} 430 431struct imush { 432 ispsoftc_t *isp; 433 int error; 434}; 435 436static void imc(void *, bus_dma_segment_t *, int, int); 437 438static void 439imc(void *arg, bus_dma_segment_t *segs, int nseg, int error) 440{ 441 struct imush *imushp = (struct imush *) arg; 442 if (error) { 443 imushp->error = error; 444 } else { 445 ispsoftc_t *isp =imushp->isp; 446 bus_addr_t addr = segs->ds_addr; 447 448 isp->isp_rquest_dma = addr; 449 addr += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); 450 isp->isp_result_dma = addr; 451 } 452} 453 454static int 455isp_sbus_mbxdma(ispsoftc_t *isp) 456{ 457 caddr_t base; 458 uint32_t len; 459 int i, error, ns; 460 struct imush im; 461 462 /* 463 * Already been here? If so, leave... 464 */ 465 if (isp->isp_rquest) { 466 return (0); 467 } 468 469 ISP_UNLOCK(isp); 470 471 len = sizeof (struct isp_pcmd) * isp->isp_maxcmds; 472 isp->isp_osinfo.pcmd_pool = (struct isp_pcmd *) 473 malloc(len, M_DEVBUF, M_WAITOK | M_ZERO); 474 if (isp->isp_osinfo.pcmd_pool == NULL) { 475 isp_prt(isp, ISP_LOGERR, "cannot alloc pcmd pool"); 476 ISP_LOCK(isp); 477 return (1); 478 } 479 480 len = sizeof (XS_T **) * isp->isp_maxcmds; 481 isp->isp_xflist = (XS_T **) malloc(len, M_DEVBUF, M_WAITOK | M_ZERO); 482 if (isp->isp_xflist == NULL) { 483 isp_prt(isp, ISP_LOGERR, "cannot alloc xflist array"); 484 ISP_LOCK(isp); 485 return (1); 486 } 487 len = sizeof (bus_dmamap_t) * isp->isp_maxcmds; 488 489 if (isp_dma_tag_create(BUS_DMA_ROOTARG(ISP_SBD(isp)), 1, 490 BUS_SPACE_MAXADDR_24BIT+1, BUS_SPACE_MAXADDR_32BIT, 491 BUS_SPACE_MAXADDR_32BIT, NULL, NULL, BUS_SPACE_MAXSIZE_32BIT, 492 ISP_NSEGS, BUS_SPACE_MAXADDR_24BIT, 0, &isp->isp_osinfo.dmat)) { 493 isp_prt(isp, ISP_LOGERR, "could not create master dma tag"); 494 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF); 495 free(isp->isp_xflist, M_DEVBUF); 496 ISP_LOCK(isp); 497 return(1); 498 } 499 500 /* 501 * Allocate and map the request, result queues, plus FC scratch area. 502 */ 503 len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); 504 len += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp)); 505 506 ns = (len / PAGE_SIZE) + 1; 507 if (isp_dma_tag_create(isp->isp_osinfo.dmat, QENTRY_LEN, 508 BUS_SPACE_MAXADDR_24BIT+1, BUS_SPACE_MAXADDR_32BIT, 509 BUS_SPACE_MAXADDR_32BIT, NULL, NULL, len, ns, 510 BUS_SPACE_MAXADDR_24BIT, 0, &isp->isp_cdmat)) { 511 isp_prt(isp, ISP_LOGERR, 512 "cannot create a dma tag for control spaces"); 513 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF); 514 free(isp->isp_xflist, M_DEVBUF); 515 ISP_LOCK(isp); 516 return (1); 517 } 518 519 if (bus_dmamem_alloc(isp->isp_cdmat, (void **)&base, BUS_DMA_NOWAIT, 520 &isp->isp_cdmap) != 0) { 521 isp_prt(isp, ISP_LOGERR, 522 "cannot allocate %d bytes of CCB memory", len); 523 bus_dma_tag_destroy(isp->isp_cdmat); 524 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF); 525 free(isp->isp_xflist, M_DEVBUF); 526 ISP_LOCK(isp); 527 return (1); 528 } 529 530 for (i = 0; i < isp->isp_maxcmds; i++) { 531 struct isp_pcmd *pcmd = &isp->isp_osinfo.pcmd_pool[i]; 532 error = bus_dmamap_create(isp->isp_osinfo.dmat, 0, &pcmd->dmap); 533 if (error) { 534 isp_prt(isp, ISP_LOGERR, 535 "error %d creating per-cmd DMA maps", error); 536 while (--i >= 0) { 537 bus_dmamap_destroy(isp->isp_osinfo.dmat, 538 isp->isp_osinfo.pcmd_pool[i].dmap); 539 } 540 goto bad; 541 } 542 isp_callout_init(&pcmd->wdog); 543 if (i == isp->isp_maxcmds-1) { 544 pcmd->next = NULL; 545 } else { 546 pcmd->next = &isp->isp_osinfo.pcmd_pool[i+1]; 547 } 548 } 549 isp->isp_osinfo.pcmd_free = &isp->isp_osinfo.pcmd_pool[0]; 550 551 im.isp = isp; 552 im.error = 0; 553 bus_dmamap_load(isp->isp_cdmat, isp->isp_cdmap, base, len, imc, &im, 0); 554 if (im.error) { 555 isp_prt(isp, ISP_LOGERR, 556 "error %d loading dma map for control areas", im.error); 557 goto bad; 558 } 559 560 isp->isp_rquest = base; 561 base += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); 562 isp->isp_result = base; 563 ISP_LOCK(isp); 564 return (0); 565 566bad: 567 bus_dmamem_free(isp->isp_cdmat, base, isp->isp_cdmap); 568 bus_dma_tag_destroy(isp->isp_cdmat); 569 free(isp->isp_xflist, M_DEVBUF); 570 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF); 571 isp->isp_rquest = NULL; 572 ISP_LOCK(isp); 573 return (1); 574} 575 576typedef struct { 577 ispsoftc_t *isp; 578 void *cmd_token; 579 void *rq; 580 uint32_t *nxtip; 581 uint32_t optr; 582 int error; 583} mush_t; 584 585#define MUSHERR_NOQENTRIES -2 586 587 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 bus_dma_segment_t *eseg; 597 ispreq_t *rq; 598 int seglim, datalen; 599 uint16_t nxti; 600 601 mp = (mush_t *) arg; 602 if (error) { 603 mp->error = error; 604 return; 605 } 606 607 if (nseg < 1) { 608 isp_prt(mp->isp, ISP_LOGERR, "bad segment count (%d)", nseg); 609 mp->error = EFAULT; 610 return; 611 } 612 csio = mp->cmd_token; 613 isp = mp->isp; 614 rq = mp->rq; 615 nxti = *mp->nxtip; 616 617 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 618 bus_dmamap_sync(isp->isp_osinfo.dmat, 619 PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREREAD); 620 } else { 621 bus_dmamap_sync(isp->isp_osinfo.dmat, 622 PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREWRITE); 623 } 624 625 datalen = XS_XFRLEN(csio); 626 627 /* 628 * We're passed an initial partially filled in entry that 629 * has most fields filled in except for data transfer 630 * related values. 631 * 632 * Our job is to fill in the initial request queue entry and 633 * then to start allocating and filling in continuation entries 634 * until we've covered the entire transfer. 635 */ 636 637 if (csio->cdb_len > 12) { 638 seglim = 0; 639 } else { 640 seglim = ISP_RQDSEG; 641 } 642 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 643 rq->req_flags |= REQFLAG_DATA_IN; 644 } else { 645 rq->req_flags |= REQFLAG_DATA_OUT; 646 } 647 648 eseg = dm_segs + nseg; 649 650 while (datalen != 0 && rq->req_seg_count < seglim && dm_segs != eseg) { 651 rq->req_dataseg[rq->req_seg_count].ds_base = dm_segs->ds_addr; 652 rq->req_dataseg[rq->req_seg_count].ds_count = dm_segs->ds_len; 653 datalen -= dm_segs->ds_len; 654 rq->req_seg_count++; 655 dm_segs++; 656 } 657 658 while (datalen > 0 && dm_segs != eseg) { 659 uint16_t onxti; 660 ispcontreq_t local, *crq = &local, *cqe; 661 662 cqe = (ispcontreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, nxti); 663 onxti = nxti; 664 nxti = ISP_NXT_QENTRY(onxti, RQUEST_QUEUE_LEN(isp)); 665 if (nxti == mp->optr) { 666 isp_prt(isp, ISP_LOGDEBUG0, "Request Queue Overflow++"); 667 mp->error = MUSHERR_NOQENTRIES; 668 return; 669 } 670 rq->req_header.rqs_entry_count++; 671 MEMZERO((void *)crq, sizeof (*crq)); 672 crq->req_header.rqs_entry_count = 1; 673 crq->req_header.rqs_entry_type = RQSTYPE_DATASEG; 674 675 seglim = 0; 676 while (datalen > 0 && seglim < ISP_CDSEG && dm_segs != eseg) { 677 crq->req_dataseg[seglim].ds_base = 678 dm_segs->ds_addr; 679 crq->req_dataseg[seglim].ds_count = 680 dm_segs->ds_len; 681 rq->req_seg_count++; 682 dm_segs++; 683 seglim++; 684 datalen -= dm_segs->ds_len; 685 } 686 isp_put_cont_req(isp, crq, cqe); 687 MEMORYBARRIER(isp, SYNC_REQUEST, onxti, QENTRY_LEN); 688 } 689 *mp->nxtip = nxti; 690} 691 692static int 693isp_sbus_dmasetup(ispsoftc_t *isp, struct ccb_scsiio *csio, ispreq_t *rq, 694 uint32_t *nxtip, uint32_t optr) 695{ 696 ispreq_t *qep; 697 mush_t mush, *mp; 698 void (*eptr)(void *, bus_dma_segment_t *, int, int); 699 700 qep = (ispreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, isp->isp_reqidx); 701 eptr = dma2; 702 703 704 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_NONE || 705 (csio->dxfer_len == 0)) { 706 rq->req_seg_count = 1; 707 goto mbxsync; 708 } 709 710 /* 711 * Do a virtual grapevine step to collect info for 712 * the callback dma allocation that we have to use... 713 */ 714 mp = &mush; 715 mp->isp = isp; 716 mp->cmd_token = csio; 717 mp->rq = rq; 718 mp->nxtip = nxtip; 719 mp->optr = optr; 720 mp->error = 0; 721 722 if ((csio->ccb_h.flags & CAM_SCATTER_VALID) == 0) { 723 if ((csio->ccb_h.flags & CAM_DATA_PHYS) == 0) { 724 int error = bus_dmamap_load(isp->isp_osinfo.dmat, 725 PISP_PCMD(csio)->dmap, csio->data_ptr, 726 csio->dxfer_len, eptr, mp, 0); 727 if (error == EINPROGRESS) { 728 bus_dmamap_unload(isp->isp_osinfo.dmat, 729 PISP_PCMD(csio)->dmap); 730 mp->error = EINVAL; 731 isp_prt(isp, ISP_LOGERR, 732 "deferred dma allocation not supported"); 733 } else if (error && mp->error == 0) { 734#ifdef DIAGNOSTIC 735 isp_prt(isp, ISP_LOGERR, 736 "error %d in dma mapping code", error); 737#endif 738 mp->error = error; 739 } 740 } else { 741 /* Pointer to physical buffer */ 742 struct bus_dma_segment seg; 743 seg.ds_addr = (bus_addr_t)csio->data_ptr; 744 seg.ds_len = csio->dxfer_len; 745 (*eptr)(mp, &seg, 1, 0); 746 } 747 } else { 748 struct bus_dma_segment *segs; 749 750 if ((csio->ccb_h.flags & CAM_DATA_PHYS) != 0) { 751 isp_prt(isp, ISP_LOGERR, 752 "Physical segment pointers unsupported"); 753 mp->error = EINVAL; 754 } else if ((csio->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) { 755 isp_prt(isp, ISP_LOGERR, 756 "Virtual segment addresses unsupported"); 757 mp->error = EINVAL; 758 } else { 759 /* Just use the segments provided */ 760 segs = (struct bus_dma_segment *) csio->data_ptr; 761 (*eptr)(mp, segs, csio->sglist_cnt, 0); 762 } 763 } 764 if (mp->error) { 765 int retval = CMD_COMPLETE; 766 if (mp->error == MUSHERR_NOQENTRIES) { 767 retval = CMD_EAGAIN; 768 } else if (mp->error == EFBIG) { 769 XS_SETERR(csio, CAM_REQ_TOO_BIG); 770 } else if (mp->error == EINVAL) { 771 XS_SETERR(csio, CAM_REQ_INVALID); 772 } else { 773 XS_SETERR(csio, CAM_UNREC_HBA_ERROR); 774 } 775 return (retval); 776 } 777mbxsync: 778 if (isp->isp_dblev & ISP_LOGDEBUG1) { 779 isp_print_bytes(isp, "Request Queue Entry", QENTRY_LEN, rq); 780 } 781 switch (rq->req_header.rqs_entry_type) { 782 case RQSTYPE_REQUEST: 783 isp_put_request(isp, rq, qep); 784 break; 785 case RQSTYPE_CMDONLY: 786 isp_put_extended_request(isp, (ispextreq_t *)rq, 787 (ispextreq_t *)qep); 788 break; 789 } 790 return (CMD_QUEUED); 791} 792 793static void 794isp_sbus_reset0(ispsoftc_t *isp) 795{ 796 ISP_DISABLE_INTS(isp); 797} 798 799static void 800isp_sbus_reset1(ispsoftc_t *isp) 801{ 802 ISP_ENABLE_INTS(isp); 803} 804 805static void 806isp_sbus_dumpregs(ispsoftc_t *isp, const char *msg) 807{ 808 if (msg) 809 printf("%s: %s\n", device_get_nameunit(isp->isp_dev), msg); 810 else 811 printf("%s:\n", device_get_nameunit(isp->isp_dev)); 812 printf(" biu_conf1=%x", ISP_READ(isp, BIU_CONF1)); 813 printf(" biu_icr=%x biu_isr=%x biu_sema=%x ", ISP_READ(isp, BIU_ICR), 814 ISP_READ(isp, BIU_ISR), ISP_READ(isp, BIU_SEMA)); 815 printf("risc_hccr=%x\n", ISP_READ(isp, HCCR)); 816 817 818 ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE); 819 printf(" cdma_conf=%x cdma_sts=%x cdma_fifostat=%x\n", 820 ISP_READ(isp, CDMA_CONF), ISP_READ(isp, CDMA_STATUS), 821 ISP_READ(isp, CDMA_FIFO_STS)); 822 printf(" ddma_conf=%x ddma_sts=%x ddma_fifostat=%x\n", 823 ISP_READ(isp, DDMA_CONF), ISP_READ(isp, DDMA_STATUS), 824 ISP_READ(isp, DDMA_FIFO_STS)); 825 printf(" sxp_int=%x sxp_gross=%x sxp(scsi_ctrl)=%x\n", 826 ISP_READ(isp, SXP_INTERRUPT), 827 ISP_READ(isp, SXP_GROSS_ERR), 828 ISP_READ(isp, SXP_PINS_CTRL)); 829 ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE); 830 printf(" mbox regs: %x %x %x %x %x\n", 831 ISP_READ(isp, OUTMAILBOX0), ISP_READ(isp, OUTMAILBOX1), 832 ISP_READ(isp, OUTMAILBOX2), ISP_READ(isp, OUTMAILBOX3), 833 ISP_READ(isp, OUTMAILBOX4)); 834} 835