1 /* $NetBSD: isp_sbus.c,v 1.81 2012/09/07 22:37:27 macallan Exp $ */ 2 /* 3 * SBus specific probe and attach routines for Qlogic ISP SCSI adapters. 4 * 5 * Copyright (C) 1997, 1998, 1999 National Aeronautics & Space Administration 6 * All rights reserved. 7 * 8 * Additional Copyright (C) 2000-2007 by Matthew Jacob 9 * All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 * 33 */ 34 35 #include <sys/cdefs.h> 36 __KERNEL_RCSID(0, "$NetBSD: isp_sbus.c,v 1.81 2012/09/07 22:37:27 macallan Exp $"); 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/device.h> 41 #include <sys/kernel.h> 42 #include <sys/malloc.h> 43 #include <sys/queue.h> 44 #include <dev/ic/isp_netbsd.h> 45 #include <sys/intr.h> 46 #include <machine/autoconf.h> 47 #include <dev/sbus/sbusvar.h> 48 #include <sys/reboot.h> 49 #include "opt_isp.h" 50 51 static void isp_sbus_reset0(ispsoftc_t *); 52 static void isp_sbus_reset1(ispsoftc_t *); 53 static int isp_sbus_intr(void *); 54 static int 55 isp_sbus_rd_isr(ispsoftc_t *, uint32_t *, uint16_t *, uint16_t *); 56 static uint32_t isp_sbus_rd_reg(ispsoftc_t *, int); 57 static void isp_sbus_wr_reg (ispsoftc_t *, int, uint32_t); 58 static int isp_sbus_mbxdma(ispsoftc_t *); 59 static int isp_sbus_dmasetup(ispsoftc_t *, XS_T *, void *); 60 static void isp_sbus_dmateardown(ispsoftc_t *, XS_T *, uint32_t); 61 62 #ifndef ISP_DISABLE_FW 63 #include <dev/microcode/isp/asm_sbus.h> 64 #else 65 #define ISP_1000_RISC_CODE NULL 66 #endif 67 68 static const 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_sbus_dmateardown, 75 isp_sbus_reset0, 76 isp_sbus_reset1, 77 NULL, 78 ISP_1000_RISC_CODE, 79 0, 80 0 81 }; 82 83 struct isp_sbussoftc { 84 ispsoftc_t sbus_isp; 85 sdparam sbus_dev; 86 struct scsipi_channel sbus_chan; 87 bus_space_tag_t sbus_bustag; 88 bus_space_handle_t sbus_reg; 89 int sbus_node; 90 int sbus_pri; 91 struct ispmdvec sbus_mdvec; 92 bus_dmamap_t *sbus_dmamap; 93 int16_t sbus_poff[_NREG_BLKS]; 94 }; 95 96 97 static int isp_match(device_t, cfdata_t, void *); 98 static void isp_sbus_attach(device_t, device_t, void *); 99 CFATTACH_DECL_NEW(isp_sbus, sizeof (struct isp_sbussoftc), 100 isp_match, isp_sbus_attach, NULL, NULL); 101 102 static int 103 isp_match(device_t parent, cfdata_t cf, void *aux) 104 { 105 int rv; 106 struct sbus_attach_args *sa = aux; 107 108 rv = (strcmp(cf->cf_name, sa->sa_name) == 0 || 109 strcmp("PTI,ptisp", sa->sa_name) == 0 || 110 strcmp("ptisp", sa->sa_name) == 0 || 111 strcmp("SUNW,isp", sa->sa_name) == 0 || 112 strcmp("QLGC,isp", sa->sa_name) == 0); 113 114 return (rv); 115 } 116 117 118 static void 119 isp_sbus_attach(device_t parent, device_t self, void *aux) 120 { 121 int freq, ispburst, sbusburst; 122 struct sbus_attach_args *sa = aux; 123 struct isp_sbussoftc *sbc = device_private(self); 124 struct sbus_softc *sbsc = device_private(parent); 125 ispsoftc_t *isp = &sbc->sbus_isp; 126 127 isp->isp_osinfo.dev = self; 128 129 printf(" for %s\n", sa->sa_name); 130 131 isp->isp_nchan = isp->isp_osinfo.adapter.adapt_nchannels = 1; 132 133 sbc->sbus_bustag = sa->sa_bustag; 134 if (sa->sa_nintr != 0) 135 sbc->sbus_pri = sa->sa_pri; 136 sbc->sbus_mdvec = mdvec; 137 138 if (sa->sa_npromvaddrs) { 139 sbus_promaddr_to_handle(sa->sa_bustag, 140 sa->sa_promvaddrs[0], &sbc->sbus_reg); 141 } else { 142 if (sbus_bus_map(sa->sa_bustag, sa->sa_slot, sa->sa_offset, 143 sa->sa_size, 0, &sbc->sbus_reg) != 0) { 144 aprint_error_dev(self, "cannot map registers\n"); 145 return; 146 } 147 } 148 sbc->sbus_node = sa->sa_node; 149 150 freq = prom_getpropint(sa->sa_node, "clock-frequency", 0); 151 if (freq) { 152 /* 153 * Convert from HZ to MHz, rounding up. 154 */ 155 freq = (freq + 500000)/1000000; 156 } 157 sbc->sbus_mdvec.dv_clock = freq; 158 159 /* 160 * Now figure out what the proper burst sizes, etc., to use. 161 * Unfortunately, there is no ddi_dma_burstsizes here which 162 * walks up the tree finding the limiting burst size node (if 163 * any). 164 */ 165 sbusburst = sbsc->sc_burst; 166 if (sbusburst == 0) 167 sbusburst = SBUS_BURST_32 - 1; 168 ispburst = prom_getpropint(sa->sa_node, "burst-sizes", -1); 169 if (ispburst == -1) { 170 ispburst = sbusburst; 171 } 172 ispburst &= sbusburst; 173 ispburst &= ~(1 << 7); 174 ispburst &= ~(1 << 6); 175 sbc->sbus_mdvec.dv_conf1 = 0; 176 if (ispburst & (1 << 5)) { 177 sbc->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_32; 178 } else if (ispburst & (1 << 4)) { 179 sbc->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_16; 180 } else if (ispburst & (1 << 3)) { 181 sbc->sbus_mdvec.dv_conf1 = 182 BIU_SBUS_CONF1_BURST8 | BIU_SBUS_CONF1_FIFO_8; 183 } 184 if (sbc->sbus_mdvec.dv_conf1) { 185 sbc->sbus_mdvec.dv_conf1 |= BIU_BURST_ENABLE; 186 } 187 188 isp->isp_mdvec = &sbc->sbus_mdvec; 189 isp->isp_bustype = ISP_BT_SBUS; 190 isp->isp_type = ISP_HA_SCSI_UNKNOWN; 191 isp->isp_param = &sbc->sbus_dev; 192 isp->isp_dmatag = sa->sa_dmatag; 193 ISP_MEMZERO(isp->isp_param, sizeof (sdparam)); 194 isp->isp_osinfo.chan = &sbc->sbus_chan; 195 196 sbc->sbus_poff[BIU_BLOCK >> _BLK_REG_SHFT] = BIU_REGS_OFF; 197 sbc->sbus_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = SBUS_MBOX_REGS_OFF; 198 sbc->sbus_poff[SXP_BLOCK >> _BLK_REG_SHFT] = SBUS_SXP_REGS_OFF; 199 sbc->sbus_poff[RISC_BLOCK >> _BLK_REG_SHFT] = SBUS_RISC_REGS_OFF; 200 sbc->sbus_poff[DMA_BLOCK >> _BLK_REG_SHFT] = DMA_REGS_OFF; 201 202 /* Establish interrupt channel */ 203 bus_intr_establish(sbc->sbus_bustag, sbc->sbus_pri, IPL_BIO, 204 isp_sbus_intr, sbc); 205 206 /* 207 * Set up logging levels. 208 */ 209 #ifdef ISP_LOGDEFAULT 210 isp->isp_dblev = ISP_LOGDEFAULT; 211 #else 212 isp->isp_dblev = ISP_LOGWARN|ISP_LOGERR; 213 if (bootverbose) 214 isp->isp_dblev |= ISP_LOGCONFIG|ISP_LOGINFO; 215 #ifdef SCSIDEBUG 216 isp->isp_dblev |= ISP_LOGDEBUG1|ISP_LOGDEBUG2; 217 #endif 218 #ifdef DEBUG 219 isp->isp_dblev |= ISP_LOGDEBUG0; 220 #endif 221 #endif 222 223 isp->isp_confopts = device_cfdata(self)->cf_flags; 224 SDPARAM(isp, 0)->role = ISP_DEFAULT_ROLES; 225 226 /* 227 * There's no tool on sparc to set NVRAM for ISPs, so ignore it. 228 */ 229 isp->isp_confopts |= ISP_CFG_NONVRAM; 230 231 /* 232 * Mark things if we're a PTI SBus adapter. 233 */ 234 if (strcmp("PTI,ptisp", sa->sa_name) == 0 || 235 strcmp("ptisp", sa->sa_name) == 0) { 236 SDPARAM(isp, 0)->isp_ptisp = 1; 237 } 238 ISP_LOCK(isp); 239 isp_reset(isp, 1); 240 if (isp->isp_state != ISP_RESETSTATE) { 241 ISP_UNLOCK(isp); 242 return; 243 } 244 ISP_ENABLE_INTS(isp); 245 isp_init(isp); 246 if (isp->isp_state != ISP_INITSTATE) { 247 isp_uninit(isp); 248 ISP_UNLOCK(isp); 249 return; 250 } 251 252 /* 253 * do generic attach. 254 */ 255 ISP_UNLOCK(isp); 256 isp_attach(isp); 257 } 258 259 260 static void 261 isp_sbus_reset0(ispsoftc_t *isp) 262 { 263 ISP_DISABLE_INTS(isp); 264 } 265 266 static void 267 isp_sbus_reset1(ispsoftc_t *isp) 268 { 269 ISP_ENABLE_INTS(isp); 270 } 271 272 static int 273 isp_sbus_intr(void *arg) 274 { 275 uint32_t isr; 276 uint16_t sema, mbox; 277 ispsoftc_t *isp = arg; 278 279 if (ISP_READ_ISR(isp, &isr, &sema, &mbox) == 0) { 280 isp->isp_intbogus++; 281 return (0); 282 } else { 283 struct isp_sbussoftc *sbc = arg; 284 sbc->sbus_isp.isp_osinfo.onintstack = 1; 285 isp_intr(isp, isr, sema, mbox); 286 sbc->sbus_isp.isp_osinfo.onintstack = 0; 287 return (1); 288 } 289 } 290 291 #define IspVirt2Off(a, x) \ 292 (((struct isp_sbussoftc *)a)->sbus_poff[((x) & _BLK_REG_MASK) >> \ 293 _BLK_REG_SHFT] + ((x) & 0xff)) 294 295 #define BXR2(sbc, off) \ 296 bus_space_read_2(sbc->sbus_bustag, sbc->sbus_reg, off) 297 298 static int 299 isp_sbus_rd_isr(ispsoftc_t *isp, uint32_t *isrp, 300 uint16_t *semap, uint16_t *mbp) 301 { 302 struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp; 303 uint32_t isr; 304 uint16_t sema; 305 306 isr = BXR2(sbc, IspVirt2Off(isp, BIU_ISR)); 307 sema = BXR2(sbc, IspVirt2Off(isp, BIU_SEMA)); 308 isp_prt(isp, ISP_LOGDEBUG3, "ISR 0x%x SEMA 0x%x", isr, sema); 309 isr &= INT_PENDING_MASK(isp); 310 sema &= BIU_SEMA_LOCK; 311 if (isr == 0 && sema == 0) { 312 return (0); 313 } 314 *isrp = isr; 315 if ((*semap = sema) != 0) { 316 *mbp = BXR2(sbc, IspVirt2Off(isp, OUTMAILBOX0)); 317 } 318 return (1); 319 } 320 321 static uint32_t 322 isp_sbus_rd_reg(ispsoftc_t *isp, int regoff) 323 { 324 struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp; 325 int offset = sbc->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; 326 offset += (regoff & 0xff); 327 return (bus_space_read_2(sbc->sbus_bustag, sbc->sbus_reg, offset)); 328 } 329 330 static void 331 isp_sbus_wr_reg(ispsoftc_t *isp, int regoff, uint32_t val) 332 { 333 struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp; 334 int offset = sbc->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; 335 offset += (regoff & 0xff); 336 bus_space_write_2(sbc->sbus_bustag, sbc->sbus_reg, offset, val); 337 } 338 339 static int 340 isp_sbus_mbxdma(ispsoftc_t *isp) 341 { 342 struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp; 343 bus_dma_segment_t reqseg, rspseg; 344 int reqrs, rsprs, i, progress; 345 size_t n; 346 bus_size_t len; 347 348 if (isp->isp_rquest_dma) 349 return (0); 350 351 n = isp->isp_maxcmds * sizeof (isp_hdl_t); 352 isp->isp_xflist = (isp_hdl_t *) malloc(n, M_DEVBUF, M_WAITOK); 353 if (isp->isp_xflist == NULL) { 354 isp_prt(isp, ISP_LOGERR, "cannot alloc xflist array"); 355 return (1); 356 } 357 ISP_MEMZERO(isp->isp_xflist, n); 358 for (n = 0; n < isp->isp_maxcmds - 1; n++) { 359 isp->isp_xflist[n].cmd = &isp->isp_xflist[n+1]; 360 } 361 isp->isp_xffree = isp->isp_xflist; 362 n = sizeof (bus_dmamap_t) * isp->isp_maxcmds; 363 sbc->sbus_dmamap = (bus_dmamap_t *) malloc(n, M_DEVBUF, M_WAITOK); 364 if (sbc->sbus_dmamap == NULL) { 365 free(isp->isp_xflist, M_DEVBUF); 366 isp->isp_xflist = NULL; 367 isp_prt(isp, ISP_LOGERR, "cannot alloc dmamap array"); 368 return (1); 369 } 370 for (i = 0; i < isp->isp_maxcmds; i++) { 371 /* Allocate a DMA handle */ 372 if (bus_dmamap_create(isp->isp_dmatag, MAXPHYS, 1, MAXPHYS, 373 1 << 24, BUS_DMA_NOWAIT, &sbc->sbus_dmamap[i]) != 0) { 374 isp_prt(isp, ISP_LOGERR, "cmd DMA maps create error"); 375 break; 376 } 377 } 378 if (i < isp->isp_maxcmds) { 379 while (--i >= 0) { 380 bus_dmamap_destroy(isp->isp_dmatag, 381 sbc->sbus_dmamap[i]); 382 } 383 free(isp->isp_xflist, M_DEVBUF); 384 free(sbc->sbus_dmamap, M_DEVBUF); 385 isp->isp_xflist = NULL; 386 sbc->sbus_dmamap = NULL; 387 return (1); 388 } 389 390 /* 391 * Allocate and map the request and response queues 392 */ 393 progress = 0; 394 len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); 395 if (bus_dmamem_alloc(isp->isp_dmatag, len, 0, 0, &reqseg, 1, &reqrs, 396 BUS_DMA_NOWAIT)) { 397 goto dmafail; 398 } 399 progress++; 400 if (bus_dmamem_map(isp->isp_dmatag, &reqseg, reqrs, len, 401 (void *)&isp->isp_rquest, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 402 goto dmafail; 403 } 404 progress++; 405 if (bus_dmamap_create(isp->isp_dmatag, len, 1, len, 1 << 24, 406 BUS_DMA_NOWAIT, &isp->isp_rqdmap) != 0) { 407 goto dmafail; 408 } 409 progress++; 410 if (bus_dmamap_load(isp->isp_dmatag, isp->isp_rqdmap, 411 isp->isp_rquest, len, NULL, BUS_DMA_NOWAIT) != 0) { 412 goto dmafail; 413 } 414 progress++; 415 isp->isp_rquest_dma = isp->isp_rqdmap->dm_segs[0].ds_addr; 416 417 len = ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp)); 418 if (bus_dmamem_alloc(isp->isp_dmatag, len, 0, 0, &rspseg, 1, &rsprs, 419 BUS_DMA_NOWAIT)) { 420 goto dmafail; 421 } 422 progress++; 423 if (bus_dmamem_map(isp->isp_dmatag, &rspseg, rsprs, len, 424 (void *)&isp->isp_result, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 425 goto dmafail; 426 } 427 progress++; 428 if (bus_dmamap_create(isp->isp_dmatag, len, 1, len, 1 << 24, 429 BUS_DMA_NOWAIT, &isp->isp_rsdmap) != 0) { 430 goto dmafail; 431 } 432 progress++; 433 if (bus_dmamap_load(isp->isp_dmatag, isp->isp_rsdmap, 434 isp->isp_result, len, NULL, BUS_DMA_NOWAIT) != 0) { 435 goto dmafail; 436 } 437 isp->isp_result_dma = isp->isp_rsdmap->dm_segs[0].ds_addr; 438 439 return (0); 440 441 dmafail: 442 isp_prt(isp, ISP_LOGERR, "Mailbox DMA Setup Failure"); 443 444 if (progress >= 8) { 445 bus_dmamap_unload(isp->isp_dmatag, isp->isp_rsdmap); 446 } 447 if (progress >= 7) { 448 bus_dmamap_destroy(isp->isp_dmatag, isp->isp_rsdmap); 449 } 450 if (progress >= 6) { 451 bus_dmamem_unmap(isp->isp_dmatag, 452 isp->isp_result, ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp))); 453 } 454 if (progress >= 5) { 455 bus_dmamem_free(isp->isp_dmatag, &rspseg, rsprs); 456 } 457 458 if (progress >= 4) { 459 bus_dmamap_unload(isp->isp_dmatag, isp->isp_rqdmap); 460 } 461 if (progress >= 3) { 462 bus_dmamap_destroy(isp->isp_dmatag, isp->isp_rqdmap); 463 } 464 if (progress >= 2) { 465 bus_dmamem_unmap(isp->isp_dmatag, 466 isp->isp_rquest, ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp))); 467 } 468 if (progress >= 1) { 469 bus_dmamem_free(isp->isp_dmatag, &reqseg, reqrs); 470 } 471 472 for (i = 0; i < isp->isp_maxcmds; i++) { 473 bus_dmamap_destroy(isp->isp_dmatag, sbc->sbus_dmamap[i]); 474 } 475 free(sbc->sbus_dmamap, M_DEVBUF); 476 free(isp->isp_xflist, M_DEVBUF); 477 isp->isp_xflist = NULL; 478 sbc->sbus_dmamap = NULL; 479 return (1); 480 } 481 482 /* 483 * Map a DMA request. 484 * We're guaranteed that rq->req_handle is a value from 1 to isp->isp_maxcmds. 485 */ 486 487 static int 488 isp_sbus_dmasetup(struct ispsoftc *isp, struct scsipi_xfer *xs, void *arg) 489 { 490 struct isp_sbussoftc *sbc = (struct isp_sbussoftc *)isp; 491 ispreq_t *rq = arg; 492 bus_dmamap_t dmap; 493 bus_dma_segment_t *dm_segs; 494 uint32_t nsegs, hidx; 495 isp_ddir_t ddir; 496 497 hidx = isp_handle_index(isp, rq->req_handle); 498 if (hidx == ISP_BAD_HANDLE_INDEX) { 499 XS_SETERR(xs, HBA_BOTCH); 500 return (CMD_COMPLETE); 501 } 502 dmap = sbc->sbus_dmamap[hidx]; 503 if (xs->datalen == 0) { 504 ddir = ISP_NOXFR; 505 nsegs = 0; 506 dm_segs = NULL; 507 } else { 508 int error; 509 uint32_t flag, flg2; 510 511 if (xs->xs_control & XS_CTL_DATA_IN) { 512 flg2 = BUS_DMASYNC_PREREAD; 513 flag = BUS_DMA_READ; 514 ddir = ISP_FROM_DEVICE; 515 } else { 516 flg2 = BUS_DMASYNC_PREWRITE; 517 flag = BUS_DMA_WRITE; 518 ddir = ISP_TO_DEVICE; 519 } 520 error = bus_dmamap_load(isp->isp_dmatag, dmap, xs->data, xs->datalen, 521 NULL, ((xs->xs_control & XS_CTL_NOSLEEP) ? BUS_DMA_NOWAIT : BUS_DMA_WAITOK) | BUS_DMA_STREAMING | flag); 522 if (error) { 523 isp_prt(isp, ISP_LOGWARN, "unable to load DMA (%d)", error); 524 XS_SETERR(xs, HBA_BOTCH); 525 if (error == EAGAIN || error == ENOMEM) { 526 return (CMD_EAGAIN); 527 } else { 528 return (CMD_COMPLETE); 529 } 530 } 531 dm_segs = dmap->dm_segs; 532 nsegs = dmap->dm_nsegs; 533 bus_dmamap_sync(isp->isp_dmatag, dmap, 0, dmap->dm_mapsize, flg2); 534 } 535 536 if (isp_send_cmd(isp, rq, dm_segs, nsegs, xs->datalen, ddir) != CMD_QUEUED) { 537 return (CMD_EAGAIN); 538 } else { 539 return (CMD_QUEUED); 540 } 541 } 542 543 static void 544 isp_sbus_dmateardown(ispsoftc_t *isp, XS_T *xs, uint32_t handle) 545 { 546 struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp; 547 bus_dmamap_t dmap; 548 uint32_t hidx; 549 550 hidx = isp_handle_index(isp, handle); 551 if (hidx == ISP_BAD_HANDLE_INDEX) { 552 isp_xs_prt(isp, xs, ISP_LOGERR, "bad handle on teardown"); 553 return; 554 } 555 dmap = sbc->sbus_dmamap[hidx]; 556 bus_dmamap_sync(isp->isp_dmatag, dmap, 0, 557 xs->datalen, (xs->xs_control & XS_CTL_DATA_IN)? 558 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 559 bus_dmamap_unload(isp->isp_dmatag, dmap); 560 } 561
Indexes created Sat Sep 20 22:09:52 GMT 2025