isp_sbus.c revision 1.80
1 /* $NetBSD: isp_sbus.c,v 1.80 2010/03/26 20:52:01 mjacob 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 1.80 2010/03/26 20:52:01 mjacob 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 50 static void isp_sbus_reset0(ispsoftc_t *); 51 static void isp_sbus_reset1(ispsoftc_t *); 52 static int isp_sbus_intr(void *); 53 static int 54 isp_sbus_rd_isr(ispsoftc_t *, uint32_t *, uint16_t *, uint16_t *); 55 static uint32_t isp_sbus_rd_reg(ispsoftc_t *, int); 56 static void isp_sbus_wr_reg (ispsoftc_t *, int, uint32_t); 57 static int isp_sbus_mbxdma(ispsoftc_t *); 58 static int isp_sbus_dmasetup(ispsoftc_t *, XS_T *, void *); 59 static void isp_sbus_dmateardown(ispsoftc_t *, XS_T *, uint32_t); 60 61 #ifndef ISP_DISABLE_FW 62 #include <dev/microcode/isp/asm_sbus.h> 63 #else 64 #define ISP_1000_RISC_CODE NULL 65 #endif 66 67 static const struct ispmdvec mdvec = { 68 isp_sbus_rd_isr, 69 isp_sbus_rd_reg, 70 isp_sbus_wr_reg, 71 isp_sbus_mbxdma, 72 isp_sbus_dmasetup, 73 isp_sbus_dmateardown, 74 isp_sbus_reset0, 75 isp_sbus_reset1, 76 NULL, 77 ISP_1000_RISC_CODE, 78 0, 79 0 80 }; 81 82 struct isp_sbussoftc { 83 ispsoftc_t sbus_isp; 84 sdparam sbus_dev; 85 struct scsipi_channel sbus_chan; 86 bus_space_tag_t sbus_bustag; 87 bus_space_handle_t sbus_reg; 88 int sbus_node; 89 int sbus_pri; 90 struct ispmdvec sbus_mdvec; 91 bus_dmamap_t *sbus_dmamap; 92 int16_t sbus_poff[_NREG_BLKS]; 93 }; 94 95 96 static int isp_match(device_t, cfdata_t, void *); 97 static void isp_sbus_attach(device_t, device_t, void *); 98 CFATTACH_DECL_NEW(isp_sbus, sizeof (struct isp_sbussoftc), 99 isp_match, isp_sbus_attach, NULL, NULL); 100 101 static int 102 isp_match(device_t parent, cfdata_t cf, void *aux) 103 { 104 int rv; 105 struct sbus_attach_args *sa = aux; 106 107 rv = (strcmp(cf->cf_name, sa->sa_name) == 0 || 108 strcmp("PTI,ptisp", sa->sa_name) == 0 || 109 strcmp("ptisp", sa->sa_name) == 0 || 110 strcmp("SUNW,isp", sa->sa_name) == 0 || 111 strcmp("QLGC,isp", sa->sa_name) == 0); 112 113 return (rv); 114 } 115 116 117 static void 118 isp_sbus_attach(device_t parent, device_t self, void *aux) 119 { 120 int freq, ispburst, sbusburst; 121 struct sbus_attach_args *sa = aux; 122 struct isp_sbussoftc *sbc = device_private(self); 123 struct sbus_softc *sbsc = device_private(parent); 124 ispsoftc_t *isp = &sbc->sbus_isp; 125 126 isp->isp_osinfo.dev = self; 127 128 printf(" for %s\n", sa->sa_name); 129 130 isp->isp_nchan = isp->isp_osinfo.adapter.adapt_nchannels = 1; 131 132 sbc->sbus_bustag = sa->sa_bustag; 133 if (sa->sa_nintr != 0) 134 sbc->sbus_pri = sa->sa_pri; 135 sbc->sbus_mdvec = mdvec; 136 137 if (sa->sa_npromvaddrs) { 138 sbus_promaddr_to_handle(sa->sa_bustag, 139 sa->sa_promvaddrs[0], &sbc->sbus_reg); 140 } else { 141 if (sbus_bus_map(sa->sa_bustag, sa->sa_slot, sa->sa_offset, 142 sa->sa_size, 0, &sbc->sbus_reg) != 0) { 143 aprint_error_dev(self, "cannot map registers\n"); 144 return; 145 } 146 } 147 sbc->sbus_node = sa->sa_node; 148 149 freq = prom_getpropint(sa->sa_node, "clock-frequency", 0); 150 if (freq) { 151 /* 152 * Convert from HZ to MHz, rounding up. 153 */ 154 freq = (freq + 500000)/1000000; 155 } 156 sbc->sbus_mdvec.dv_clock = freq; 157 158 /* 159 * Now figure out what the proper burst sizes, etc., to use. 160 * Unfortunately, there is no ddi_dma_burstsizes here which 161 * walks up the tree finding the limiting burst size node (if 162 * any). 163 */ 164 sbusburst = sbsc->sc_burst; 165 if (sbusburst == 0) 166 sbusburst = SBUS_BURST_32 - 1; 167 ispburst = prom_getpropint(sa->sa_node, "burst-sizes", -1); 168 if (ispburst == -1) { 169 ispburst = sbusburst; 170 } 171 ispburst &= sbusburst; 172 ispburst &= ~(1 << 7); 173 ispburst &= ~(1 << 6); 174 sbc->sbus_mdvec.dv_conf1 = 0; 175 if (ispburst & (1 << 5)) { 176 sbc->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_32; 177 } else if (ispburst & (1 << 4)) { 178 sbc->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_16; 179 } else if (ispburst & (1 << 3)) { 180 sbc->sbus_mdvec.dv_conf1 = 181 BIU_SBUS_CONF1_BURST8 | BIU_SBUS_CONF1_FIFO_8; 182 } 183 if (sbc->sbus_mdvec.dv_conf1) { 184 sbc->sbus_mdvec.dv_conf1 |= BIU_BURST_ENABLE; 185 } 186 187 isp->isp_mdvec = &sbc->sbus_mdvec; 188 isp->isp_bustype = ISP_BT_SBUS; 189 isp->isp_type = ISP_HA_SCSI_UNKNOWN; 190 isp->isp_param = &sbc->sbus_dev; 191 isp->isp_dmatag = sa->sa_dmatag; 192 ISP_MEMZERO(isp->isp_param, sizeof (sdparam)); 193 isp->isp_osinfo.chan = &sbc->sbus_chan; 194 195 sbc->sbus_poff[BIU_BLOCK >> _BLK_REG_SHFT] = BIU_REGS_OFF; 196 sbc->sbus_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = SBUS_MBOX_REGS_OFF; 197 sbc->sbus_poff[SXP_BLOCK >> _BLK_REG_SHFT] = SBUS_SXP_REGS_OFF; 198 sbc->sbus_poff[RISC_BLOCK >> _BLK_REG_SHFT] = SBUS_RISC_REGS_OFF; 199 sbc->sbus_poff[DMA_BLOCK >> _BLK_REG_SHFT] = DMA_REGS_OFF; 200 201 /* Establish interrupt channel */ 202 bus_intr_establish(sbc->sbus_bustag, sbc->sbus_pri, IPL_BIO, 203 isp_sbus_intr, sbc); 204 205 /* 206 * Set up logging levels. 207 */ 208 #ifdef ISP_LOGDEFAULT 209 isp->isp_dblev = ISP_LOGDEFAULT; 210 #else 211 isp->isp_dblev = ISP_LOGWARN|ISP_LOGERR; 212 if (bootverbose) 213 isp->isp_dblev |= ISP_LOGCONFIG|ISP_LOGINFO; 214 #ifdef SCSIDEBUG 215 isp->isp_dblev |= ISP_LOGDEBUG1|ISP_LOGDEBUG2; 216 #endif 217 #ifdef DEBUG 218 isp->isp_dblev |= ISP_LOGDEBUG0; 219 #endif 220 #endif 221 222 isp->isp_confopts = device_cfdata(self)->cf_flags; 223 SDPARAM(isp, 0)->role = ISP_DEFAULT_ROLES; 224 225 /* 226 * There's no tool on sparc to set NVRAM for ISPs, so ignore it. 227 */ 228 isp->isp_confopts |= ISP_CFG_NONVRAM; 229 230 /* 231 * Mark things if we're a PTI SBus adapter. 232 */ 233 if (strcmp("PTI,ptisp", sa->sa_name) == 0 || 234 strcmp("ptisp", sa->sa_name) == 0) { 235 SDPARAM(isp, 0)->isp_ptisp = 1; 236 } 237 ISP_LOCK(isp); 238 isp_reset(isp, 1); 239 if (isp->isp_state != ISP_RESETSTATE) { 240 ISP_UNLOCK(isp); 241 return; 242 } 243 ISP_ENABLE_INTS(isp); 244 isp_init(isp); 245 if (isp->isp_state != ISP_INITSTATE) { 246 isp_uninit(isp); 247 ISP_UNLOCK(isp); 248 return; 249 } 250 251 /* 252 * do generic attach. 253 */ 254 ISP_UNLOCK(isp); 255 isp_attach(isp); 256 } 257 258 259 static void 260 isp_sbus_reset0(ispsoftc_t *isp) 261 { 262 ISP_DISABLE_INTS(isp); 263 } 264 265 static void 266 isp_sbus_reset1(ispsoftc_t *isp) 267 { 268 ISP_ENABLE_INTS(isp); 269 } 270 271 static int 272 isp_sbus_intr(void *arg) 273 { 274 uint32_t isr; 275 uint16_t sema, mbox; 276 ispsoftc_t *isp = arg; 277 278 if (ISP_READ_ISR(isp, &isr, &sema, &mbox) == 0) { 279 isp->isp_intbogus++; 280 return (0); 281 } else { 282 struct isp_sbussoftc *sbc = arg; 283 sbc->sbus_isp.isp_osinfo.onintstack = 1; 284 isp_intr(isp, isr, sema, mbox); 285 sbc->sbus_isp.isp_osinfo.onintstack = 0; 286 return (1); 287 } 288 } 289 290 #define IspVirt2Off(a, x) \ 291 (((struct isp_sbussoftc *)a)->sbus_poff[((x) & _BLK_REG_MASK) >> \ 292 _BLK_REG_SHFT] + ((x) & 0xff)) 293 294 #define BXR2(sbc, off) \ 295 bus_space_read_2(sbc->sbus_bustag, sbc->sbus_reg, off) 296 297 static int 298 isp_sbus_rd_isr(ispsoftc_t *isp, uint32_t *isrp, 299 uint16_t *semap, uint16_t *mbp) 300 { 301 struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp; 302 uint32_t isr; 303 uint16_t sema; 304 305 isr = BXR2(sbc, IspVirt2Off(isp, BIU_ISR)); 306 sema = BXR2(sbc, IspVirt2Off(isp, BIU_SEMA)); 307 isp_prt(isp, ISP_LOGDEBUG3, "ISR 0x%x SEMA 0x%x", isr, sema); 308 isr &= INT_PENDING_MASK(isp); 309 sema &= BIU_SEMA_LOCK; 310 if (isr == 0 && sema == 0) { 311 return (0); 312 } 313 *isrp = isr; 314 if ((*semap = sema) != 0) { 315 *mbp = BXR2(sbc, IspVirt2Off(isp, OUTMAILBOX0)); 316 } 317 return (1); 318 } 319 320 static uint32_t 321 isp_sbus_rd_reg(ispsoftc_t *isp, int regoff) 322 { 323 struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp; 324 int offset = sbc->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; 325 offset += (regoff & 0xff); 326 return (bus_space_read_2(sbc->sbus_bustag, sbc->sbus_reg, offset)); 327 } 328 329 static void 330 isp_sbus_wr_reg(ispsoftc_t *isp, int regoff, uint32_t val) 331 { 332 struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp; 333 int offset = sbc->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; 334 offset += (regoff & 0xff); 335 bus_space_write_2(sbc->sbus_bustag, sbc->sbus_reg, offset, val); 336 } 337 338 static int 339 isp_sbus_mbxdma(ispsoftc_t *isp) 340 { 341 struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp; 342 bus_dma_segment_t reqseg, rspseg; 343 int reqrs, rsprs, i, progress; 344 size_t n; 345 bus_size_t len; 346 347 if (isp->isp_rquest_dma) 348 return (0); 349 350 n = isp->isp_maxcmds * sizeof (isp_hdl_t); 351 isp->isp_xflist = (isp_hdl_t *) malloc(n, M_DEVBUF, M_WAITOK); 352 if (isp->isp_xflist == NULL) { 353 isp_prt(isp, ISP_LOGERR, "cannot alloc xflist array"); 354 return (1); 355 } 356 ISP_MEMZERO(isp->isp_xflist, n); 357 for (n = 0; n < isp->isp_maxcmds - 1; n++) { 358 isp->isp_xflist[n].cmd = &isp->isp_xflist[n+1]; 359 } 360 n = sizeof (bus_dmamap_t) * isp->isp_maxcmds; 361 sbc->sbus_dmamap = (bus_dmamap_t *) malloc(n, M_DEVBUF, M_WAITOK); 362 if (sbc->sbus_dmamap == NULL) { 363 free(isp->isp_xflist, M_DEVBUF); 364 isp->isp_xflist = NULL; 365 isp_prt(isp, ISP_LOGERR, "cannot alloc dmamap array"); 366 return (1); 367 } 368 for (i = 0; i < isp->isp_maxcmds; i++) { 369 /* Allocate a DMA handle */ 370 if (bus_dmamap_create(isp->isp_dmatag, MAXPHYS, 1, MAXPHYS, 371 1 << 24, BUS_DMA_NOWAIT, &sbc->sbus_dmamap[i]) != 0) { 372 isp_prt(isp, ISP_LOGERR, "cmd DMA maps create error"); 373 break; 374 } 375 } 376 if (i < isp->isp_maxcmds) { 377 while (--i >= 0) { 378 bus_dmamap_destroy(isp->isp_dmatag, 379 sbc->sbus_dmamap[i]); 380 } 381 free(isp->isp_xflist, M_DEVBUF); 382 free(sbc->sbus_dmamap, M_DEVBUF); 383 isp->isp_xflist = NULL; 384 sbc->sbus_dmamap = NULL; 385 return (1); 386 } 387 388 /* 389 * Allocate and map the request and response queues 390 */ 391 progress = 0; 392 len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); 393 if (bus_dmamem_alloc(isp->isp_dmatag, len, 0, 0, &reqseg, 1, &reqrs, 394 BUS_DMA_NOWAIT)) { 395 goto dmafail; 396 } 397 progress++; 398 if (bus_dmamem_map(isp->isp_dmatag, &reqseg, reqrs, len, 399 (void *)&isp->isp_rquest, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 400 goto dmafail; 401 } 402 progress++; 403 if (bus_dmamap_create(isp->isp_dmatag, len, 1, len, 1 << 24, 404 BUS_DMA_NOWAIT, &isp->isp_rqdmap) != 0) { 405 goto dmafail; 406 } 407 progress++; 408 if (bus_dmamap_load(isp->isp_dmatag, isp->isp_rqdmap, 409 isp->isp_rquest, len, NULL, BUS_DMA_NOWAIT) != 0) { 410 goto dmafail; 411 } 412 progress++; 413 isp->isp_rquest_dma = isp->isp_rqdmap->dm_segs[0].ds_addr; 414 415 len = ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp)); 416 if (bus_dmamem_alloc(isp->isp_dmatag, len, 0, 0, &rspseg, 1, &rsprs, 417 BUS_DMA_NOWAIT)) { 418 goto dmafail; 419 } 420 progress++; 421 if (bus_dmamem_map(isp->isp_dmatag, &rspseg, rsprs, len, 422 (void *)&isp->isp_result, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 423 goto dmafail; 424 } 425 progress++; 426 if (bus_dmamap_create(isp->isp_dmatag, len, 1, len, 1 << 24, 427 BUS_DMA_NOWAIT, &isp->isp_rsdmap) != 0) { 428 goto dmafail; 429 } 430 progress++; 431 if (bus_dmamap_load(isp->isp_dmatag, isp->isp_rsdmap, 432 isp->isp_result, len, NULL, BUS_DMA_NOWAIT) != 0) { 433 goto dmafail; 434 } 435 isp->isp_result_dma = isp->isp_rsdmap->dm_segs[0].ds_addr; 436 437 return (0); 438 439 dmafail: 440 isp_prt(isp, ISP_LOGERR, "Mailbox DMA Setup Failure"); 441 442 if (progress >= 8) { 443 bus_dmamap_unload(isp->isp_dmatag, isp->isp_rsdmap); 444 } 445 if (progress >= 7) { 446 bus_dmamap_destroy(isp->isp_dmatag, isp->isp_rsdmap); 447 } 448 if (progress >= 6) { 449 bus_dmamem_unmap(isp->isp_dmatag, 450 isp->isp_result, ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp))); 451 } 452 if (progress >= 5) { 453 bus_dmamem_free(isp->isp_dmatag, &rspseg, rsprs); 454 } 455 456 if (progress >= 4) { 457 bus_dmamap_unload(isp->isp_dmatag, isp->isp_rqdmap); 458 } 459 if (progress >= 3) { 460 bus_dmamap_destroy(isp->isp_dmatag, isp->isp_rqdmap); 461 } 462 if (progress >= 2) { 463 bus_dmamem_unmap(isp->isp_dmatag, 464 isp->isp_rquest, ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp))); 465 } 466 if (progress >= 1) { 467 bus_dmamem_free(isp->isp_dmatag, &reqseg, reqrs); 468 } 469 470 for (i = 0; i < isp->isp_maxcmds; i++) { 471 bus_dmamap_destroy(isp->isp_dmatag, sbc->sbus_dmamap[i]); 472 } 473 free(sbc->sbus_dmamap, M_DEVBUF); 474 free(isp->isp_xflist, M_DEVBUF); 475 isp->isp_xflist = NULL; 476 sbc->sbus_dmamap = NULL; 477 return (1); 478 } 479 480 /* 481 * Map a DMA request. 482 * We're guaranteed that rq->req_handle is a value from 1 to isp->isp_maxcmds. 483 */ 484 485 static int 486 isp_sbus_dmasetup(struct ispsoftc *isp, struct scsipi_xfer *xs, void *arg) 487 { 488 struct isp_sbussoftc *sbc = (struct isp_sbussoftc *)isp; 489 ispreq_t *rq = arg; 490 bus_dmamap_t dmap; 491 bus_dma_segment_t *dm_segs; 492 uint32_t nsegs, hidx; 493 isp_ddir_t ddir; 494 495 hidx = isp_handle_index(isp, rq->req_handle); 496 if (hidx == ISP_BAD_HANDLE_INDEX) { 497 XS_SETERR(xs, HBA_BOTCH); 498 return (CMD_COMPLETE); 499 } 500 dmap = sbc->sbus_dmamap[hidx]; 501 if (xs->datalen == 0) { 502 ddir = ISP_NOXFR; 503 nsegs = 0; 504 dm_segs = NULL; 505 } else { 506 int error; 507 uint32_t flag, flg2; 508 509 if (xs->xs_control & XS_CTL_DATA_IN) { 510 flg2 = BUS_DMASYNC_PREREAD; 511 flag = BUS_DMA_READ; 512 ddir = ISP_FROM_DEVICE; 513 } else { 514 flg2 = BUS_DMASYNC_PREWRITE; 515 flag = BUS_DMA_WRITE; 516 ddir = ISP_TO_DEVICE; 517 } 518 error = bus_dmamap_load(isp->isp_dmatag, dmap, xs->data, xs->datalen, 519 NULL, ((xs->xs_control & XS_CTL_NOSLEEP) ? BUS_DMA_NOWAIT : BUS_DMA_WAITOK) | BUS_DMA_STREAMING | flag); 520 if (error) { 521 isp_prt(isp, ISP_LOGWARN, "unable to load DMA (%d)", error); 522 XS_SETERR(xs, HBA_BOTCH); 523 if (error == EAGAIN || error == ENOMEM) { 524 return (CMD_EAGAIN); 525 } else { 526 return (CMD_COMPLETE); 527 } 528 } 529 dm_segs = dmap->dm_segs; 530 nsegs = dmap->dm_nsegs; 531 bus_dmamap_sync(isp->isp_dmatag, dmap, 0, dmap->dm_mapsize, flg2); 532 } 533 534 if (isp_send_cmd(isp, rq, dm_segs, nsegs, xs->datalen, ddir) != CMD_QUEUED) { 535 return (CMD_EAGAIN); 536 } else { 537 return (CMD_QUEUED); 538 } 539 } 540 541 static void 542 isp_sbus_dmateardown(ispsoftc_t *isp, XS_T *xs, uint32_t handle) 543 { 544 struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp; 545 bus_dmamap_t dmap; 546 uint32_t hidx; 547 548 hidx = isp_handle_index(isp, handle); 549 if (hidx == ISP_BAD_HANDLE_INDEX) { 550 isp_xs_prt(isp, xs, ISP_LOGERR, "bad handle on teardown"); 551 return; 552 } 553 dmap = sbc->sbus_dmamap[hidx]; 554 bus_dmamap_sync(isp->isp_dmatag, dmap, 0, 555 xs->datalen, (xs->xs_control & XS_CTL_DATA_IN)? 556 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 557 bus_dmamap_unload(isp->isp_dmatag, dmap); 558 } 559
Indexes created Tue Oct 21 12:09:54 GMT 2025