dpti.c revision 1.28
1 /* $NetBSD: dpti.c,v 1.28 2006/10/12 01:30:58 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Doran. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Copyright (c) 1996-2000 Distributed Processing Technology Corporation 41 * Copyright (c) 2000 Adaptec Corporation 42 * All rights reserved. 43 * 44 * TERMS AND CONDITIONS OF USE 45 * 46 * Redistribution and use in source form, with or without modification, are 47 * permitted provided that redistributions of source code must retain the 48 * above copyright notice, this list of conditions and the following disclaimer. 49 * 50 * This software is provided `as is' by Adaptec and any express or implied 51 * warranties, including, but not limited to, the implied warranties of 52 * merchantability and fitness for a particular purpose, are disclaimed. In no 53 * event shall Adaptec be liable for any direct, indirect, incidental, special, 54 * exemplary or consequential damages (including, but not limited to, 55 * procurement of substitute goods or services; loss of use, data, or profits; 56 * or business interruptions) however caused and on any theory of liability, 57 * whether in contract, strict liability, or tort (including negligence or 58 * otherwise) arising in any way out of the use of this driver software, even 59 * if advised of the possibility of such damage. 60 */ 61 62 /* 63 * Adaptec/DPT I2O control interface. 64 */ 65 66 #include <sys/cdefs.h> 67 __KERNEL_RCSID(0, "$NetBSD: dpti.c,v 1.28 2006/10/12 01:30:58 christos Exp $"); 68 69 #include "opt_i2o.h" 70 71 #include <sys/param.h> 72 #include <sys/systm.h> 73 #include <sys/kernel.h> 74 #include <sys/device.h> 75 #include <sys/queue.h> 76 #include <sys/proc.h> 77 #include <sys/endian.h> 78 #include <sys/malloc.h> 79 #include <sys/conf.h> 80 #include <sys/ioctl.h> 81 82 #include <uvm/uvm_extern.h> 83 84 #include <machine/bus.h> 85 #ifdef __i386__ 86 #include <machine/pio.h> 87 #endif 88 89 #include <dev/i2o/i2o.h> 90 #include <dev/i2o/i2odpt.h> 91 #include <dev/i2o/iopio.h> 92 #include <dev/i2o/iopvar.h> 93 #include <dev/i2o/dptivar.h> 94 95 #ifdef I2ODEBUG 96 #define DPRINTF(x) printf x 97 #else 98 #define DPRINTF(x) 99 #endif 100 101 static struct dpt_sig dpti_sig = { 102 { 'd', 'P', 't', 'S', 'i', 'G'}, 103 SIG_VERSION, 104 #if defined(__i386__) 105 PROC_INTEL, 106 #elif defined(__powerpc__) 107 PROC_POWERPC, 108 #elif defined(__alpha__) 109 PROC_ALPHA, 110 #elif defined(__mips__) 111 PROC_MIPS, 112 #elif defined(__sparc64__) 113 PROC_ULTRASPARC, 114 #endif 115 #if defined(__i386__) 116 PROC_386 | PROC_486 | PROC_PENTIUM | PROC_SEXIUM, 117 #else 118 0, 119 #endif 120 FT_HBADRVR, 121 0, 122 OEM_DPT, 123 OS_FREE_BSD, /* XXX */ 124 CAP_ABOVE16MB, 125 DEV_ALL, 126 ADF_ALL_SC5, 127 0, 128 0, 129 DPTI_VERSION, 130 DPTI_REVISION, 131 DPTI_SUBREVISION, 132 DPTI_MONTH, 133 DPTI_DAY, 134 DPTI_YEAR, 135 "" /* Will be filled later */ 136 }; 137 138 void dpti_attach(struct device *, struct device *, void *); 139 int dpti_blinkled(struct dpti_softc *); 140 int dpti_ctlrinfo(struct dpti_softc *, int, caddr_t); 141 int dpti_match(struct device *, struct cfdata *, void *); 142 int dpti_passthrough(struct dpti_softc *, caddr_t, struct proc *); 143 int dpti_sysinfo(struct dpti_softc *, int, caddr_t); 144 145 dev_type_open(dptiopen); 146 dev_type_ioctl(dptiioctl); 147 148 const struct cdevsw dpti_cdevsw = { 149 dptiopen, nullclose, noread, nowrite, dptiioctl, 150 nostop, notty, nopoll, nommap, nokqfilter, D_OTHER, 151 }; 152 153 extern struct cfdriver dpti_cd; 154 155 CFATTACH_DECL(dpti, sizeof(struct dpti_softc), 156 dpti_match, dpti_attach, NULL, NULL); 157 158 int 159 dpti_match(struct device *parent, struct cfdata *match __unused, void *aux) 160 { 161 struct iop_attach_args *ia; 162 struct iop_softc *iop; 163 164 ia = aux; 165 iop = (struct iop_softc *)parent; 166 167 if (ia->ia_class != I2O_CLASS_ANY || ia->ia_tid != I2O_TID_IOP) 168 return (0); 169 170 if (le16toh(iop->sc_status.orgid) != I2O_ORG_DPT) 171 return (0); 172 173 return (1); 174 } 175 176 void 177 dpti_attach(struct device *parent, struct device *self, void *aux __unused) 178 { 179 struct iop_softc *iop; 180 struct dpti_softc *sc; 181 struct { 182 struct i2o_param_op_results pr; 183 struct i2o_param_read_results prr; 184 struct i2o_dpt_param_exec_iop_buffers dib; 185 } __attribute__ ((__packed__)) param; 186 int rv; 187 188 sc = device_private(self); 189 iop = device_private(parent); 190 191 /* 192 * Tell the world what we are. The description in the signature 193 * must be no more than 46 bytes long (see dptivar.h). 194 */ 195 printf(": DPT/Adaptec RAID management interface\n"); 196 snprintf(dpti_sig.dsDescription, sizeof(dpti_sig.dsDescription), 197 "NetBSD %s I2O OSM", osrelease); 198 199 rv = iop_field_get_all(iop, I2O_TID_IOP, 200 I2O_DPT_PARAM_EXEC_IOP_BUFFERS, ¶m, 201 sizeof(param), NULL); 202 if (rv != 0) 203 return; 204 205 sc->sc_blinkled = le32toh(param.dib.serialoutputoff) + 8; 206 } 207 208 int 209 dptiopen(dev_t dev, int flag __unused, int mode __unused, 210 struct lwp *l __unused) 211 { 212 213 if (device_lookup(&dpti_cd, minor(dev)) == NULL) 214 return (ENXIO); 215 216 return (0); 217 } 218 219 int 220 dptiioctl(dev_t dev, u_long cmd, caddr_t data, int flag __unused, struct lwp *l) 221 { 222 struct iop_softc *iop; 223 struct dpti_softc *sc; 224 struct ioctl_pt *pt; 225 int i, size, rv, linux; 226 227 sc = device_lookup(&dpti_cd, minor(dev)); 228 iop = (struct iop_softc *)device_parent(&sc->sc_dv); 229 rv = 0; 230 231 if (cmd == PTIOCLINUX) { 232 pt = (struct ioctl_pt *)data; 233 size = IOCPARM_LEN(pt->com); 234 cmd = pt->com & 0xffff; 235 data = pt->data; 236 linux = 1; 237 } else { 238 size = IOCPARM_LEN(cmd); 239 cmd = cmd & 0xffff; 240 linux = 0; 241 } 242 243 switch (cmd) { 244 case DPT_SIGNATURE: 245 if (size > sizeof(dpti_sig)) 246 size = sizeof(dpti_sig); 247 memcpy(data, &dpti_sig, size); 248 break; 249 250 case DPT_CTRLINFO: 251 rv = dpti_ctlrinfo(sc, size, data); 252 break; 253 254 case DPT_SYSINFO: 255 rv = dpti_sysinfo(sc, size, data); 256 break; 257 258 case DPT_BLINKLED: 259 if ((i = dpti_blinkled(sc)) == -1) 260 i = 0; 261 262 if (size == 0) { 263 rv = copyout(&i, *(caddr_t *)data, sizeof(i)); 264 break; 265 } 266 267 *(int *)data = i; 268 break; 269 270 case DPT_TARGET_BUSY: 271 /* 272 * XXX This is here to stop linux_machdepioctl() from 273 * whining about an unknown ioctl. 274 */ 275 rv = EIO; 276 break; 277 278 case DPT_I2OUSRCMD: 279 if (securelevel > 1) { 280 rv = EPERM; 281 break; 282 } 283 284 if (sc->sc_nactive++ >= 2) 285 tsleep(&sc->sc_nactive, PRIBIO, "dptislp", 0); 286 287 if (linux) 288 rv = dpti_passthrough(sc, data, l->l_proc); 289 else 290 rv = dpti_passthrough(sc, *(caddr_t *)data, l->l_proc); 291 292 sc->sc_nactive--; 293 wakeup_one(&sc->sc_nactive); 294 break; 295 296 case DPT_I2ORESETCMD: 297 printf("%s: I2ORESETCMD not implemented\n", 298 sc->sc_dv.dv_xname); 299 rv = EOPNOTSUPP; 300 break; 301 302 case DPT_I2ORESCANCMD: 303 if ((rv = lockmgr(&iop->sc_conflock, LK_EXCLUSIVE, NULL)) != 0) 304 break; 305 rv = iop_reconfigure(iop, 0); 306 lockmgr(&iop->sc_conflock, LK_RELEASE, NULL); 307 break; 308 309 default: 310 rv = ENOTTY; 311 break; 312 } 313 314 return (rv); 315 } 316 317 int 318 dpti_blinkled(struct dpti_softc *sc) 319 { 320 struct iop_softc *iop; 321 u_int v; 322 323 iop = (struct iop_softc *)device_parent(&sc->sc_dv); 324 325 v = bus_space_read_1(iop->sc_iot, iop->sc_ioh, sc->sc_blinkled + 0); 326 if (v == 0xbc) { 327 v = bus_space_read_1(iop->sc_iot, iop->sc_ioh, 328 sc->sc_blinkled + 1); 329 return (v); 330 } 331 332 return (-1); 333 } 334 335 int 336 dpti_ctlrinfo(struct dpti_softc *sc, int size, caddr_t data) 337 { 338 struct dpt_ctlrinfo info; 339 struct iop_softc *iop; 340 int rv, i; 341 342 iop = (struct iop_softc *)device_parent(&sc->sc_dv); 343 344 memset(&info, 0, sizeof(info)); 345 346 info.length = sizeof(info) - sizeof(u_int16_t); 347 info.drvrHBAnum = device_unit(&sc->sc_dv); 348 info.baseAddr = iop->sc_memaddr; 349 if ((i = dpti_blinkled(sc)) == -1) 350 i = 0; 351 info.blinkState = i; 352 info.pciBusNum = iop->sc_pcibus; 353 info.pciDeviceNum = iop->sc_pcidev; 354 info.hbaFlags = FLG_OSD_PCI_VALID | FLG_OSD_DMA | FLG_OSD_I2O; 355 info.Interrupt = 10; /* XXX */ 356 357 if (size > sizeof(*data)) { 358 memcpy(data, &info, min(sizeof(info), size)); 359 rv = 0; 360 } else 361 rv = copyout(&info, *(caddr_t *)data, sizeof(info)); 362 363 return (rv); 364 } 365 366 int 367 dpti_sysinfo(struct dpti_softc *sc __unused, int size, caddr_t data) 368 { 369 struct dpt_sysinfo info; 370 int rv; 371 #ifdef __i386__ 372 int i, j; 373 #endif 374 375 memset(&info, 0, sizeof(info)); 376 377 #ifdef __i386__ 378 outb (0x70, 0x12); 379 i = inb(0x71); 380 j = i >> 4; 381 if (i == 0x0f) { 382 outb (0x70, 0x19); 383 j = inb (0x71); 384 } 385 info.drive0CMOS = j; 386 387 j = i & 0x0f; 388 if (i == 0x0f) { 389 outb (0x70, 0x1a); 390 j = inb (0x71); 391 } 392 info.drive1CMOS = j; 393 info.processorFamily = dpti_sig.dsProcessorFamily; 394 395 /* 396 * Get the conventional memory size from CMOS. 397 */ 398 outb(0x70, 0x16); 399 j = inb(0x71); 400 j <<= 8; 401 outb(0x70, 0x15); 402 j |= inb(0x71); 403 info.conventionalMemSize = j; 404 405 /* 406 * Get the extended memory size from CMOS. 407 */ 408 outb(0x70, 0x31); 409 j = inb(0x71); 410 j <<= 8; 411 outb(0x70, 0x30); 412 j |= inb(0x71); 413 info.extendedMemSize = j; 414 415 switch (cpu_class) { 416 case CPUCLASS_386: 417 info.processorType = PROC_386; 418 break; 419 case CPUCLASS_486: 420 info.processorType = PROC_486; 421 break; 422 case CPUCLASS_586: 423 info.processorType = PROC_PENTIUM; 424 break; 425 case CPUCLASS_686: 426 default: 427 info.processorType = PROC_SEXIUM; 428 break; 429 } 430 431 info.flags = SI_CMOS_Valid | SI_BusTypeValid | 432 SI_MemorySizeValid | SI_NO_SmartROM; 433 #else 434 info.flags = SI_BusTypeValid | SI_NO_SmartROM; 435 #endif 436 437 info.busType = SI_PCI_BUS; 438 439 /* 440 * Copy out the info structure to the user. 441 */ 442 if (size > sizeof(*data)) { 443 memcpy(data, &info, min(sizeof(info), size)); 444 rv = 0; 445 } else 446 rv = copyout(&info, *(caddr_t *)data, sizeof(info)); 447 448 return (rv); 449 } 450 451 int 452 dpti_passthrough(struct dpti_softc *sc, caddr_t data, struct proc *proc) 453 { 454 struct iop_softc *iop; 455 struct i2o_msg mh, *mf; 456 struct i2o_reply rh; 457 struct iop_msg *im; 458 struct dpti_ptbuf bufs[IOP_MAX_MSG_XFERS]; 459 u_int32_t mbtmp[IOP_MAX_MSG_SIZE / sizeof(u_int32_t)]; 460 u_int32_t rbtmp[IOP_MAX_MSG_SIZE / sizeof(u_int32_t)]; 461 int rv, msgsize, repsize, sgoff, i, mapped, nbuf, nfrag, j, sz; 462 u_int32_t *p, *pmax; 463 464 iop = (struct iop_softc *)device_parent(&sc->sc_dv); 465 im = NULL; 466 467 if ((rv = dpti_blinkled(sc)) != -1) { 468 if (rv != 0) { 469 printf("%s: adapter blinkled = 0x%02x\n", 470 sc->sc_dv.dv_xname, rv); 471 return (EIO); 472 } 473 } 474 475 /* 476 * Copy in the message frame header and determine the size of the 477 * full message frame. 478 */ 479 if ((rv = copyin(data, &mh, sizeof(mh))) != 0) { 480 DPRINTF(("%s: message copyin failed\n", 481 sc->sc_dv.dv_xname)); 482 return (rv); 483 } 484 485 msgsize = (mh.msgflags >> 14) & ~3; 486 if (msgsize < sizeof(mh) || msgsize >= IOP_MAX_MSG_SIZE) { 487 DPRINTF(("%s: bad message frame size\n", 488 sc->sc_dv.dv_xname)); 489 return (EINVAL); 490 } 491 492 /* 493 * Handle special commands. 494 */ 495 switch (mh.msgfunc >> 24) { 496 case I2O_EXEC_IOP_RESET: 497 printf("%s: I2O_EXEC_IOP_RESET not implemented\n", 498 sc->sc_dv.dv_xname); 499 return (EOPNOTSUPP); 500 501 case I2O_EXEC_OUTBOUND_INIT: 502 printf("%s: I2O_EXEC_OUTBOUND_INIT not implemented\n", 503 sc->sc_dv.dv_xname); 504 return (EOPNOTSUPP); 505 506 case I2O_EXEC_SYS_TAB_SET: 507 printf("%s: I2O_EXEC_SYS_TAB_SET not implemented\n", 508 sc->sc_dv.dv_xname); 509 return (EOPNOTSUPP); 510 511 case I2O_EXEC_STATUS_GET: 512 if ((rv = iop_status_get(iop, 0)) == 0) 513 rv = copyout(&iop->sc_status, data + msgsize, 514 sizeof(iop->sc_status)); 515 return (rv); 516 } 517 518 /* 519 * Copy in the full message frame. 520 */ 521 if ((rv = copyin(data, mbtmp, msgsize)) != 0) { 522 DPRINTF(("%s: full message copyin failed\n", 523 sc->sc_dv.dv_xname)); 524 return (rv); 525 } 526 527 /* 528 * Determine the size of the reply frame, and copy it in. 529 */ 530 if ((rv = copyin(data + msgsize, &rh, sizeof(rh))) != 0) { 531 DPRINTF(("%s: reply copyin failed\n", 532 sc->sc_dv.dv_xname)); 533 return (rv); 534 } 535 536 repsize = (rh.msgflags >> 14) & ~3; 537 if (repsize < sizeof(rh) || repsize >= IOP_MAX_MSG_SIZE) { 538 DPRINTF(("%s: bad reply header size\n", 539 sc->sc_dv.dv_xname)); 540 return (EINVAL); 541 } 542 543 if ((rv = copyin(data + msgsize, rbtmp, repsize)) != 0) { 544 DPRINTF(("%s: reply too large\n", sc->sc_dv.dv_xname)); 545 return (rv); 546 } 547 548 /* 549 * If the message has a scatter gather list, it must be comprised of 550 * simple elements. If any one transfer contains multiple segments, 551 * we allocate a temporary buffer for it; otherwise, the buffer will 552 * be mapped directly. 553 */ 554 mapped = 0; 555 if ((sgoff = ((mh.msgflags >> 4) & 15)) != 0) { 556 if ((sgoff + 2) > (msgsize >> 2)) { 557 DPRINTF(("%s: invalid message size fields\n", 558 sc->sc_dv.dv_xname)); 559 return (EINVAL); 560 } 561 562 memset(bufs, 0, sizeof(bufs)); 563 564 p = mbtmp + sgoff; 565 pmax = mbtmp + (msgsize >> 2) - 2; 566 567 for (nbuf = 0; nbuf < IOP_MAX_MSG_XFERS; nbuf++, p += 2) { 568 if (p > pmax) { 569 DPRINTF(("%s: invalid SGL (1)\n", 570 sc->sc_dv.dv_xname)); 571 goto bad; 572 } 573 574 if ((p[0] & 0x30000000) != I2O_SGL_SIMPLE) { 575 DPRINTF(("%s: invalid SGL (2)\n", 576 sc->sc_dv.dv_xname)); 577 goto bad; 578 } 579 580 bufs[nbuf].db_out = (p[0] & I2O_SGL_DATA_OUT) != 0; 581 bufs[nbuf].db_ptr = NULL; 582 583 if ((p[0] & I2O_SGL_END_BUFFER) != 0) { 584 if ((p[0] & 0x00ffffff) > IOP_MAX_XFER) { 585 DPRINTF(("%s: buffer too large\n", 586 sc->sc_dv.dv_xname)); 587 goto bad; 588 } 589 590 bufs[nbuf].db_ptr = (caddr_t)p[1]; 591 bufs[nbuf].db_proc = proc; 592 bufs[nbuf].db_size = p[0] & 0x00ffffff; 593 594 if ((p[0] & I2O_SGL_END) != 0) 595 break; 596 597 continue; 598 } 599 600 /* 601 * The buffer has multiple segments. Determine the 602 * total size. 603 */ 604 nfrag = 0; 605 sz = 0; 606 for (; p <= pmax; p += 2) { 607 if (nfrag == DPTI_MAX_SEGS) { 608 DPRINTF(("%s: too many segments\n", 609 sc->sc_dv.dv_xname)); 610 goto bad; 611 } 612 613 bufs[nbuf].db_frags[nfrag].iov_len = 614 p[0] & 0x00ffffff; 615 bufs[nbuf].db_frags[nfrag].iov_base = 616 (void *)p[1]; 617 618 sz += p[0] & 0x00ffffff; 619 nfrag++; 620 621 if ((p[0] & I2O_SGL_END) != 0) { 622 if ((p[0] & I2O_SGL_END_BUFFER) == 0) { 623 DPRINTF(( 624 "%s: invalid SGL (3)\n", 625 sc->sc_dv.dv_xname)); 626 goto bad; 627 } 628 break; 629 } 630 if ((p[0] & I2O_SGL_END_BUFFER) != 0) 631 break; 632 } 633 bufs[nbuf].db_nfrag = nfrag; 634 635 if (p > pmax) { 636 DPRINTF(("%s: invalid SGL (4)\n", 637 sc->sc_dv.dv_xname)); 638 goto bad; 639 } 640 641 if (sz > IOP_MAX_XFER) { 642 DPRINTF(("%s: buffer too large\n", 643 sc->sc_dv.dv_xname)); 644 goto bad; 645 } 646 647 bufs[nbuf].db_size = sz; 648 bufs[nbuf].db_ptr = malloc(sz, M_DEVBUF, M_WAITOK); 649 if (bufs[nbuf].db_ptr == NULL) { 650 DPRINTF(("%s: allocation failure\n", 651 sc->sc_dv.dv_xname)); 652 rv = ENOMEM; 653 goto bad; 654 } 655 656 for (i = 0, sz = 0; i < bufs[nbuf].db_nfrag; i++) { 657 rv = copyin(bufs[nbuf].db_frags[i].iov_base, 658 bufs[nbuf].db_ptr + sz, 659 bufs[nbuf].db_frags[i].iov_len); 660 if (rv != 0) { 661 DPRINTF(("%s: frag copyin\n", 662 sc->sc_dv.dv_xname)); 663 goto bad; 664 } 665 sz += bufs[nbuf].db_frags[i].iov_len; 666 } 667 668 if ((p[0] & I2O_SGL_END) != 0) 669 break; 670 } 671 672 if (nbuf == IOP_MAX_MSG_XFERS) { 673 DPRINTF(("%s: too many transfers\n", 674 sc->sc_dv.dv_xname)); 675 goto bad; 676 } 677 } else 678 nbuf = -1; 679 680 /* 681 * Allocate a wrapper, and adjust the message header fields to 682 * indicate that no scatter-gather list is currently present. 683 */ 684 685 im = iop_msg_alloc(iop, IM_WAIT | IM_NOSTATUS); 686 im->im_rb = (struct i2o_reply *)rbtmp; 687 mf = (struct i2o_msg *)mbtmp; 688 mf->msgictx = IOP_ICTX; 689 mf->msgtctx = im->im_tctx; 690 691 if (sgoff != 0) 692 mf->msgflags = (mf->msgflags & 0xff0f) | (sgoff << 16); 693 694 /* 695 * Map the data transfer(s). 696 */ 697 for (i = 0; i <= nbuf; i++) { 698 rv = iop_msg_map(iop, im, mbtmp, bufs[i].db_ptr, 699 bufs[i].db_size, bufs[i].db_out, bufs[i].db_proc); 700 if (rv != 0) { 701 DPRINTF(("%s: msg_map failed, rv = %d\n", 702 sc->sc_dv.dv_xname, rv)); 703 goto bad; 704 } 705 mapped = 1; 706 } 707 708 /* 709 * Start the command and sleep until it completes. 710 */ 711 if ((rv = iop_msg_post(iop, im, mbtmp, 5*60*1000)) != 0) 712 goto bad; 713 714 /* 715 * Copy out the reply frame. 716 */ 717 if ((rv = copyout(rbtmp, data + msgsize, repsize)) != 0) { 718 DPRINTF(("%s: reply copyout() failed\n", 719 sc->sc_dv.dv_xname)); 720 } 721 722 bad: 723 /* 724 * Free resources and return to the caller. 725 */ 726 if (im != NULL) { 727 if (mapped) 728 iop_msg_unmap(iop, im); 729 iop_msg_free(iop, im); 730 } 731 732 for (i = 0; i <= nbuf; i++) { 733 if (bufs[i].db_proc != NULL) 734 continue; 735 736 if (!bufs[i].db_out && rv == 0) { 737 for (j = 0, sz = 0; j < bufs[i].db_nfrag; j++) { 738 rv = copyout(bufs[i].db_ptr + sz, 739 bufs[i].db_frags[j].iov_base, 740 bufs[i].db_frags[j].iov_len); 741 if (rv != 0) 742 break; 743 sz += bufs[i].db_frags[j].iov_len; 744 } 745 } 746 747 if (bufs[i].db_ptr != NULL) 748 free(bufs[i].db_ptr, M_DEVBUF); 749 } 750 751 return (rv); 752 } 753
Indexes created Mon Sep 29 21:09:56 GMT 2025