Annotation of sys/dev/ic/aic79xx_openbsd.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: aic79xx_openbsd.c,v 1.26 2006/11/28 23:59:45 dlg Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 2004 Milos Urbanek, Kenneth R. Westerback & Marco Peereboom
! 5: * All rights reserved.
! 6: *
! 7: * Redistribution and use in source and binary forms, with or without
! 8: * modification, are permitted provided that the following conditions
! 9: * are met:
! 10: * 1. Redistributions of source code must retain the above copyright
! 11: * notice, this list of conditions and the following disclaimer.
! 12: * 2. Redistributions in binary form must reproduce the above copyright
! 13: * notice, this list of conditions and the following disclaimer in the
! 14: * documentation and/or other materials provided with the distribution.
! 15: *
! 16: * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
! 17: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 18: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 19: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
! 20: * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 21: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 22: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 23: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 24: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 25: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 26: * SUCH DAMAGE.
! 27: *
! 28: */
! 29:
! 30: /*
! 31: * Bus independent OpenBSD shim for the aic79xx based Adaptec SCSI controllers
! 32: *
! 33: * Copyright (c) 1994-2002 Justin T. Gibbs.
! 34: * Copyright (c) 2001-2002 Adaptec Inc.
! 35: * All rights reserved.
! 36: *
! 37: * Redistribution and use in source and binary forms, with or without
! 38: * modification, are permitted provided that the following conditions
! 39: * are met:
! 40: * 1. Redistributions of source code must retain the above copyright
! 41: * notice, this list of conditions, and the following disclaimer,
! 42: * without modification.
! 43: * 2. The name of the author may not be used to endorse or promote products
! 44: * derived from this software without specific prior written permission.
! 45: *
! 46: * Alternatively, this software may be distributed under the terms of the
! 47: * GNU Public License ("GPL").
! 48: *
! 49: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
! 50: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 51: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 52: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
! 53: * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 54: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 55: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 56: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 57: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 58: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 59: * SUCH DAMAGE.
! 60: *
! 61: */
! 62:
! 63: #include <sys/cdefs.h>
! 64: /*
! 65: __FBSDID("$FreeBSD: src/sys/dev/aic7xxx/aic79xx_osm.c,v 1.16 2003/12/17 00:02:09 gibbs Exp $");
! 66: */
! 67:
! 68: #include <dev/ic/aic79xx_openbsd.h>
! 69: #include <dev/ic/aic79xx_inline.h>
! 70: #include <dev/ic/aic79xx.h>
! 71:
! 72: #ifndef AHD_TMODE_ENABLE
! 73: #define AHD_TMODE_ENABLE 0
! 74: #endif
! 75:
! 76: /* XXX milos add ahd_ioctl */
! 77: int ahd_action(struct scsi_xfer *);
! 78: int ahd_execute_scb(void *, bus_dma_segment_t *, int);
! 79: int ahd_poll(struct ahd_softc *, int);
! 80: int ahd_setup_data(struct ahd_softc *, struct scsi_xfer *,
! 81: struct scb *);
! 82:
! 83: void ahd_adapter_req_set_xfer_mode(struct ahd_softc *, struct scb *);
! 84: void ahd_minphys(struct buf *);
! 85:
! 86: struct cfdriver ahd_cd = {
! 87: NULL, "ahd", DV_DULL
! 88: };
! 89:
! 90: static struct scsi_adapter ahd_switch =
! 91: {
! 92: ahd_action,
! 93: ahd_minphys,
! 94: 0,
! 95: 0,
! 96: };
! 97:
! 98: /* the below structure is so we have a default dev struct for our link struct */
! 99: static struct scsi_device ahd_dev =
! 100: {
! 101: NULL, /* Use default error handler */
! 102: NULL, /* have a queue, served by this */
! 103: NULL, /* have no async handler */
! 104: NULL, /* Use default 'done' routine */
! 105: };
! 106:
! 107: /*
! 108: * Attach all the sub-devices we can find
! 109: */
! 110: int
! 111: ahd_attach(struct ahd_softc *ahd)
! 112: {
! 113: struct scsibus_attach_args saa;
! 114: char ahd_info[256];
! 115: int s;
! 116:
! 117: ahd_controller_info(ahd, ahd_info, sizeof ahd_info);
! 118: printf("%s\n", ahd_info);
! 119: ahd_lock(ahd, &s);
! 120:
! 121: /*
! 122: * fill in the prototype scsi_links.
! 123: */
! 124: ahd->sc_channel.adapter_target = ahd->our_id;
! 125: if (ahd->features & AHD_WIDE)
! 126: ahd->sc_channel.adapter_buswidth = 16;
! 127: ahd->sc_channel.adapter_softc = ahd;
! 128: ahd->sc_channel.adapter = &ahd_switch;
! 129: ahd->sc_channel.openings = 16;
! 130: ahd->sc_channel.device = &ahd_dev;
! 131:
! 132: if (bootverbose) {
! 133: ahd_controller_info(ahd, ahd_info, sizeof ahd_info);
! 134: printf("%s: %s\n", ahd->sc_dev.dv_xname, ahd_info);
! 135: }
! 136:
! 137: ahd_intr_enable(ahd, TRUE);
! 138:
! 139: if (ahd->flags & AHD_RESET_BUS_A)
! 140: ahd_reset_channel(ahd, 'A', TRUE);
! 141:
! 142: bzero(&saa, sizeof(saa));
! 143: saa.saa_sc_link = &ahd->sc_channel;
! 144:
! 145: ahd->sc_child = config_found((void *)&ahd->sc_dev, &saa, scsiprint);
! 146:
! 147: ahd_unlock(ahd, &s);
! 148:
! 149: return (1);
! 150:
! 151: }
! 152:
! 153: /*
! 154: * Catch an interrupt from the adapter
! 155: */
! 156: int
! 157: ahd_platform_intr(void *arg)
! 158: {
! 159: struct ahd_softc *ahd;
! 160:
! 161: /* XXX in ahc there is some bus_dmamap_sync(PREREAD|PREWRITE); */
! 162:
! 163: ahd = (struct ahd_softc *)arg;
! 164: return ahd_intr(ahd);
! 165: }
! 166:
! 167: /*
! 168: * We have an scb which has been processed by the
! 169: * adaptor, now we look to see how the operation
! 170: * went.
! 171: */
! 172: void
! 173: ahd_done(struct ahd_softc *ahd, struct scb *scb)
! 174: {
! 175: struct scsi_xfer *xs = scb->xs;
! 176: int s;
! 177:
! 178: /* XXX in ahc there is some bus_dmamap_sync(PREREAD|PREWRITE); */
! 179:
! 180: LIST_REMOVE(scb, pending_links);
! 181:
! 182: timeout_del(&xs->stimeout);
! 183:
! 184: if (xs->datalen) {
! 185: int op;
! 186:
! 187: if ((xs->flags & SCSI_DATA_IN) != 0)
! 188: op = BUS_DMASYNC_POSTREAD;
! 189: else
! 190: op = BUS_DMASYNC_POSTWRITE;
! 191: bus_dmamap_sync(ahd->parent_dmat, scb->dmamap, 0,
! 192: scb->dmamap->dm_mapsize, op);
! 193: bus_dmamap_unload(ahd->parent_dmat, scb->dmamap);
! 194: }
! 195:
! 196: /* Translate the CAM status code to a SCSI error code. */
! 197: switch (xs->error) {
! 198: case CAM_SCSI_STATUS_ERROR:
! 199: case CAM_REQ_INPROG:
! 200: case CAM_REQ_CMP:
! 201: switch (xs->status) {
! 202: case SCSI_TASKSET_FULL:
! 203: /* SCSI Layer won't requeue, so we force infinite
! 204: * retries until queue space is available. XS_BUSY
! 205: * is dangerous because if the NOSLEEP flag is set
! 206: * it can cause the I/O to return EIO. XS_BUSY code
! 207: * falls through to XS_TIMEOUT anyway.
! 208: */
! 209: xs->error = XS_TIMEOUT;
! 210: xs->retries++;
! 211: break;
! 212: case SCSI_BUSY:
! 213: xs->error = XS_BUSY;
! 214: break;
! 215: case SCSI_CHECK:
! 216: case SCSI_TERMINATED:
! 217: if ((scb->flags & SCB_SENSE) == 0) {
! 218: /* CHECK on CHECK? */
! 219: xs->error = XS_DRIVER_STUFFUP;
! 220: } else
! 221: xs->error = XS_NOERROR;
! 222: break;
! 223: default:
! 224: xs->error = XS_NOERROR;
! 225: break;
! 226: }
! 227: break;
! 228: case CAM_BUSY:
! 229: xs->error = XS_BUSY;
! 230: break;
! 231: case CAM_CMD_TIMEOUT:
! 232: xs->error = XS_TIMEOUT;
! 233: break;
! 234: case CAM_BDR_SENT:
! 235: case CAM_SCSI_BUS_RESET:
! 236: xs->error = XS_RESET;
! 237: break;
! 238: case CAM_REQUEUE_REQ:
! 239: xs->error = XS_TIMEOUT;
! 240: xs->retries++;
! 241: break;
! 242: case CAM_SEL_TIMEOUT:
! 243: xs->error = XS_SELTIMEOUT;
! 244: break;
! 245: default:
! 246: xs->error = XS_DRIVER_STUFFUP;
! 247: break;
! 248: }
! 249:
! 250: if (xs->error != XS_NOERROR) {
! 251: /* Don't clobber any existing error state */
! 252: } else if ((scb->flags & SCB_SENSE) != 0) {
! 253: /*
! 254: * We performed autosense retrieval.
! 255: *
! 256: * Zero any sense not transferred by the
! 257: * device. The SCSI spec mandates that any
! 258: * untransfered data should be assumed to be
! 259: * zero. Complete the 'bounce' of sense information
! 260: * through buffers accessible via bus-space by
! 261: * copying it into the clients csio.
! 262: */
! 263: memset(&xs->sense, 0, sizeof(struct scsi_sense_data));
! 264: memcpy(&xs->sense, ahd_get_sense_buf(ahd, scb),
! 265: sizeof(struct scsi_sense_data));
! 266: xs->error = XS_SENSE;
! 267: } else if ((scb->flags & SCB_PKT_SENSE) != 0) {
! 268: struct scsi_status_iu_header *siu;
! 269: u_int32_t len;
! 270:
! 271: siu = (struct scsi_status_iu_header *)scb->sense_data;
! 272: len = SIU_SENSE_LENGTH(siu);
! 273: memset(&xs->sense, 0, sizeof(xs->sense));
! 274: memcpy(&xs->sense, SIU_SENSE_DATA(siu),
! 275: ulmin(len, sizeof(xs->sense)));
! 276: xs->error = XS_SENSE;
! 277: }
! 278:
! 279: ahd_lock(ahd, &s);
! 280: ahd_free_scb(ahd, scb);
! 281: ahd_unlock(ahd, &s);
! 282:
! 283: xs->flags |= ITSDONE;
! 284: scsi_done(xs);
! 285: }
! 286:
! 287: void
! 288: ahd_minphys(struct buf *bp)
! 289: {
! 290: /*
! 291: * Even though the card can transfer up to 16megs per command
! 292: * we are limited by the number of segments in the dma segment
! 293: * list that we can hold. The worst case is that all pages are
! 294: * discontinuous physically, hence the "page per segment" limit
! 295: * enforced here.
! 296: */
! 297: if (bp->b_bcount > ((AHD_NSEG - 1) * PAGE_SIZE)) {
! 298: bp->b_bcount = ((AHD_NSEG - 1) * PAGE_SIZE);
! 299: }
! 300: minphys(bp);
! 301: }
! 302:
! 303: int32_t
! 304: ahd_action(struct scsi_xfer *xs)
! 305: {
! 306: struct ahd_softc *ahd;
! 307: struct scb *scb;
! 308: struct hardware_scb *hscb;
! 309: u_int target_id;
! 310: u_int our_id;
! 311: int s;
! 312: int dontqueue = 0;
! 313: struct ahd_initiator_tinfo *tinfo;
! 314: struct ahd_tmode_tstate *tstate;
! 315: u_int col_idx;
! 316: u_int16_t quirks;
! 317:
! 318: SC_DEBUG(xs->sc_link, SDEV_DB3, ("ahd_action\n"));
! 319: ahd = (struct ahd_softc *)xs->sc_link->adapter_softc;
! 320:
! 321: /* determine safety of software queueing */
! 322: dontqueue = xs->flags & SCSI_POLL;
! 323:
! 324: target_id = xs->sc_link->target;
! 325: our_id = SCSI_SCSI_ID(ahd, xs->sc_link);
! 326:
! 327: if ((ahd->flags & AHD_INITIATORROLE) == 0) {
! 328: xs->error = XS_DRIVER_STUFFUP;
! 329: xs->flags |= ITSDONE;
! 330: scsi_done(xs);
! 331: return (COMPLETE);
! 332: /* return ccb->ccb_h.status = CAM_PROVIDE_FAIL; */
! 333: }
! 334: /*
! 335: * get an scb to use.
! 336: */
! 337: ahd_lock(ahd, &s);
! 338: tinfo = ahd_fetch_transinfo(ahd, 'A', our_id, target_id, &tstate);
! 339:
! 340: quirks = xs->sc_link->quirks;
! 341:
! 342: if ((quirks & SDEV_NOTAGS) != 0 ||
! 343: (tinfo->curr.ppr_options & MSG_EXT_PPR_PROT_IUS) != 0)
! 344: col_idx = AHD_NEVER_COL_IDX;
! 345: else
! 346: col_idx = AHD_BUILD_COL_IDX(target_id, xs->sc_link->lun);
! 347:
! 348: if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) {
! 349: ahd->flags |= AHD_RESOURCE_SHORTAGE;
! 350: ahd_unlock(ahd, &s);
! 351: return (TRY_AGAIN_LATER);
! 352: }
! 353: ahd_unlock(ahd, &s);
! 354:
! 355: hscb = scb->hscb;
! 356:
! 357: SC_DEBUG(xs->sc_link, SDEV_DB3, ("start scb(%p)\n", scb));
! 358:
! 359: scb->xs = xs;
! 360: timeout_set(&xs->stimeout, ahd_timeout, scb);
! 361:
! 362: /*
! 363: * Put all the arguments for the xfer in the scb
! 364: */
! 365: hscb->control = 0;
! 366: hscb->scsiid = BUILD_SCSIID(ahd, xs->sc_link, target_id, our_id);
! 367: hscb->lun = xs->sc_link->lun;
! 368: if (xs->xs_control & XS_CTL_RESET) {
! 369: hscb->cdb_len = 0;
! 370: scb->flags |= SCB_DEVICE_RESET;
! 371: hscb->control |= MK_MESSAGE;
! 372: hscb->task_management = SIU_TASKMGMT_LUN_RESET;
! 373: return (ahd_execute_scb(scb, NULL, 0));
! 374: } else {
! 375: hscb->task_management = 0;
! 376: return (ahd_setup_data(ahd, xs, scb));
! 377: }
! 378: }
! 379:
! 380: int
! 381: ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments)
! 382: {
! 383: struct scb *scb;
! 384: struct scsi_xfer *xs;
! 385: struct ahd_softc *ahd;
! 386: struct ahd_initiator_tinfo *tinfo;
! 387: struct ahd_tmode_tstate *tstate;
! 388: u_int mask;
! 389: int s;
! 390:
! 391: scb = (struct scb *)arg;
! 392: xs = scb->xs;
! 393: xs->error = CAM_REQ_INPROG;
! 394: xs->status = 0;
! 395: ahd = (struct ahd_softc *)xs->sc_link->adapter_softc;
! 396:
! 397: if (nsegments != 0) {
! 398: void *sg;
! 399: int op;
! 400: u_int i;
! 401:
! 402: ahd_setup_data_scb(ahd, scb);
! 403:
! 404: /* Copy the segments into our SG list */
! 405: for (i = nsegments, sg = scb->sg_list; i > 0; i--) {
! 406:
! 407: sg = ahd_sg_setup(ahd, scb, sg, dm_segs->ds_addr,
! 408: dm_segs->ds_len,
! 409: /*last*/i == 1);
! 410: dm_segs++;
! 411: }
! 412:
! 413: if ((xs->flags & SCSI_DATA_IN) != 0)
! 414: op = BUS_DMASYNC_PREREAD;
! 415: else
! 416: op = BUS_DMASYNC_PREWRITE;
! 417:
! 418: bus_dmamap_sync(ahd->parent_dmat, scb->dmamap, 0,
! 419: scb->dmamap->dm_mapsize, op);
! 420:
! 421: }
! 422:
! 423: ahd_lock(ahd, &s);
! 424:
! 425: /*
! 426: * Last time we need to check if this SCB needs to
! 427: * be aborted.
! 428: */
! 429: if (xs->flags & ITSDONE) {
! 430: if (nsegments != 0)
! 431: bus_dmamap_unload(ahd->parent_dmat,
! 432: scb->dmamap);
! 433: ahd_free_scb(ahd, scb);
! 434: ahd_unlock(ahd, &s);
! 435: return (COMPLETE);
! 436: }
! 437:
! 438: tinfo = ahd_fetch_transinfo(ahd, SCSIID_CHANNEL(ahd, scb->hscb->scsiid),
! 439: SCSIID_OUR_ID(scb->hscb->scsiid),
! 440: SCSIID_TARGET(ahd, scb->hscb->scsiid),
! 441: &tstate);
! 442:
! 443: mask = SCB_GET_TARGET_MASK(ahd, scb);
! 444:
! 445: if ((tstate->discenable & mask) != 0)
! 446: scb->hscb->control |= DISCENB;
! 447:
! 448: if ((tstate->tagenable & mask) != 0)
! 449: scb->hscb->control |= TAG_ENB;
! 450:
! 451: if ((tinfo->curr.ppr_options & MSG_EXT_PPR_PROT_IUS) != 0) {
! 452: scb->flags |= SCB_PACKETIZED;
! 453: if (scb->hscb->task_management != 0)
! 454: scb->hscb->control &= ~MK_MESSAGE;
! 455: }
! 456:
! 457: if ((tstate->auto_negotiate & mask) != 0) {
! 458: scb->flags |= SCB_AUTO_NEGOTIATE;
! 459: scb->hscb->control |= MK_MESSAGE;
! 460: }
! 461:
! 462: /* XXX with ahc there was some bus_dmamap_sync(PREREAD|PREWRITE); */
! 463:
! 464: LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links);
! 465:
! 466: if (!(xs->flags & SCSI_POLL))
! 467: timeout_add(&xs->stimeout, (xs->timeout * hz) / 1000);
! 468:
! 469: scb->flags |= SCB_ACTIVE;
! 470:
! 471: if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) {
! 472: /* Define a mapping from our tag to the SCB. */
! 473: ahd->scb_data.scbindex[SCB_GET_TAG(scb)] = scb;
! 474: ahd_pause(ahd);
! 475: ahd_set_scbptr(ahd, SCB_GET_TAG(scb));
! 476: ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_TARG);
! 477: ahd_unpause(ahd);
! 478: } else {
! 479: ahd_queue_scb(ahd, scb);
! 480: }
! 481:
! 482: if (!(xs->flags & SCSI_POLL)) {
! 483: int target = xs->sc_link->target;
! 484: int lun = SCB_GET_LUN(scb);
! 485:
! 486: if (ahd->inited_target[target] == 0) {
! 487: struct ahd_devinfo devinfo;
! 488:
! 489: ahd_adapter_req_set_xfer_mode(ahd, scb);
! 490: ahd_compile_devinfo(&devinfo, ahd->our_id, target, lun,
! 491: 'A', /*XXX milos*/ROLE_UNKNOWN);
! 492: ahd_scb_devinfo(ahd, &devinfo, scb);
! 493: ahd_update_neg_request(ahd, &devinfo, tstate, tinfo,
! 494: AHD_NEG_IF_NON_ASYNC);
! 495: ahd->inited_target[target] = 1;
! 496: }
! 497:
! 498: ahd_unlock(ahd, &s);
! 499: return (SUCCESSFULLY_QUEUED);
! 500: }
! 501:
! 502: /*
! 503: * If we can't use interrupts, poll for completion
! 504: */
! 505: SC_DEBUG(xs->sc_link, SDEV_DB3, ("cmd_poll\n"));
! 506:
! 507: do {
! 508: if (ahd_poll(ahd, xs->timeout)) {
! 509: if (!(xs->flags & SCSI_SILENT))
! 510: printf("cmd fail\n");
! 511: ahd_timeout(scb);
! 512: break;
! 513: }
! 514: } while (!(xs->flags & ITSDONE));
! 515:
! 516: ahd_unlock(ahd, &s);
! 517: return (COMPLETE);
! 518: }
! 519:
! 520: int
! 521: ahd_poll(struct ahd_softc *ahd, int wait)
! 522: {
! 523: while (--wait) {
! 524: DELAY(1000);
! 525: if (ahd_inb(ahd, INTSTAT) & INT_PEND)
! 526: break;
! 527: }
! 528:
! 529: if (wait == 0) {
! 530: printf("%s: board is not responding\n", ahd_name(ahd));
! 531: return (EIO);
! 532: }
! 533:
! 534: ahd_intr((void *)ahd);
! 535: return (0);
! 536: }
! 537:
! 538: int
! 539: ahd_setup_data(struct ahd_softc *ahd, struct scsi_xfer *xs,
! 540: struct scb *scb)
! 541: {
! 542: struct hardware_scb *hscb;
! 543: int s;
! 544:
! 545: hscb = scb->hscb;
! 546: xs->resid = xs->status = 0;
! 547: xs->error = CAM_REQ_INPROG;
! 548:
! 549: hscb->cdb_len = xs->cmdlen;
! 550: if (hscb->cdb_len > MAX_CDB_LEN) {
! 551: ahd_lock(ahd, &s);
! 552: ahd_free_scb(ahd, scb);
! 553: ahd_unlock(ahd, &s);
! 554: xs->error = XS_DRIVER_STUFFUP;
! 555: xs->flags |= ITSDONE;
! 556: scsi_done(xs);
! 557: return (COMPLETE);
! 558: }
! 559:
! 560: memcpy(hscb->shared_data.idata.cdb, xs->cmd, hscb->cdb_len);
! 561:
! 562: /* Only use S/G if there is a transfer */
! 563: if (xs->datalen) {
! 564: int error;
! 565:
! 566: error = bus_dmamap_load(ahd->parent_dmat,
! 567: scb->dmamap, xs->data,
! 568: xs->datalen, NULL,
! 569: ((xs->flags & SCSI_NOSLEEP) ?
! 570: BUS_DMA_NOWAIT : BUS_DMA_WAITOK) |
! 571: BUS_DMA_STREAMING |
! 572: ((xs->flags & XS_CTL_DATA_IN) ?
! 573: BUS_DMA_READ : BUS_DMA_WRITE));
! 574: if (error) {
! 575: #ifdef AHD_DEBUG
! 576: printf("%s: in ahd_setup_data(): bus_dmamap_load() "
! 577: "= %d\n", ahd_name(ahd), error);
! 578: #endif
! 579: ahd_lock(ahd, &s);
! 580: ahd_free_scb(ahd, scb);
! 581: ahd_unlock(ahd, &s);
! 582: return (TRY_AGAIN_LATER); /* XXX fvdl */
! 583: }
! 584: error = ahd_execute_scb(scb, scb->dmamap->dm_segs,
! 585: scb->dmamap->dm_nsegs);
! 586: return error;
! 587: } else {
! 588: return ahd_execute_scb(scb, NULL, 0);
! 589: }
! 590: }
! 591:
! 592: void
! 593: ahd_platform_set_tags(struct ahd_softc *ahd, struct ahd_devinfo *devinfo,
! 594: ahd_queue_alg alg)
! 595: {
! 596: struct ahd_tmode_tstate *tstate;
! 597:
! 598: ahd_fetch_transinfo(ahd, devinfo->channel, devinfo->our_scsiid,
! 599: devinfo->target, &tstate);
! 600:
! 601: if (alg != AHD_QUEUE_NONE)
! 602: tstate->tagenable |= devinfo->target_mask;
! 603: else
! 604: tstate->tagenable &= ~devinfo->target_mask;
! 605: }
! 606:
! 607: int
! 608: ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg)
! 609: {
! 610: if (sizeof(struct ahd_platform_data) > 0) {
! 611: ahd->platform_data = malloc(sizeof(struct ahd_platform_data),
! 612: M_DEVBUF, M_NOWAIT);
! 613: if (ahd->platform_data == NULL)
! 614: return (ENOMEM);
! 615: bzero(ahd->platform_data, sizeof(struct ahd_platform_data));
! 616: }
! 617:
! 618: return (0);
! 619: }
! 620:
! 621: void
! 622: ahd_platform_free(struct ahd_softc *ahd)
! 623: {
! 624: if (sizeof(struct ahd_platform_data) > 0)
! 625: free(ahd->platform_data, M_DEVBUF);
! 626: }
! 627:
! 628: int
! 629: ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd)
! 630: {
! 631: /* We don't sort softcs under OpenBSD so report equal always */
! 632: return (0);
! 633: }
! 634:
! 635: int
! 636: ahd_detach(struct device *self, int flags)
! 637: {
! 638: int rv = 0;
! 639:
! 640: struct ahd_softc *ahd = (struct ahd_softc*)self;
! 641:
! 642: if (ahd->sc_child != NULL)
! 643: rv = config_detach((void *)ahd->sc_child, flags);
! 644:
! 645: if (ahd->shutdown_hook != NULL)
! 646: shutdownhook_disestablish(ahd->shutdown_hook);
! 647:
! 648: ahd_free(ahd);
! 649:
! 650: return rv;
! 651: }
! 652:
! 653: void
! 654: ahd_adapter_req_set_xfer_mode(struct ahd_softc *ahd, struct scb *scb)
! 655: {
! 656: struct ahd_initiator_tinfo *tinfo;
! 657: struct ahd_tmode_tstate *tstate;
! 658: int target_id, our_id;
! 659: struct ahd_devinfo devinfo;
! 660: u_int16_t quirks;
! 661: u_int width, ppr_options, period, offset;
! 662: int s;
! 663:
! 664: target_id = scb->xs->sc_link->target;
! 665: our_id = SCSI_SCSI_ID(ahd, scb->xs->sc_link);
! 666:
! 667: s = splbio();
! 668:
! 669: quirks = scb->xs->sc_link->quirks;
! 670: tinfo = ahd_fetch_transinfo(ahd, 'A', our_id, target_id, &tstate);
! 671: ahd_compile_devinfo(&devinfo, our_id, target_id, 0, 'A',
! 672: ROLE_INITIATOR);
! 673:
! 674: tstate->discenable |= (ahd->user_discenable & devinfo.target_mask);
! 675:
! 676: if (quirks & SDEV_NOTAGS)
! 677: tstate->tagenable &= ~devinfo.target_mask;
! 678: else if (ahd->user_tagenable & devinfo.target_mask)
! 679: tstate->tagenable |= devinfo.target_mask;
! 680:
! 681: if (quirks & SDEV_NOWIDE)
! 682: width = MSG_EXT_WDTR_BUS_8_BIT;
! 683: else
! 684: width = MSG_EXT_WDTR_BUS_16_BIT;
! 685:
! 686: ahd_validate_width(ahd, NULL, &width, ROLE_UNKNOWN);
! 687: if (width > tinfo->user.width)
! 688: width = tinfo->user.width;
! 689: ahd_set_width(ahd, &devinfo, width, AHD_TRANS_GOAL, FALSE);
! 690:
! 691: if (quirks & SDEV_NOSYNC) {
! 692: period = 0;
! 693: offset = 0;
! 694: } else {
! 695: period = tinfo->user.period;
! 696: offset = tinfo->user.offset;
! 697: }
! 698:
! 699: /* XXX Look at saved INQUIRY flags for PPR capabilities XXX */
! 700: ppr_options = tinfo->user.ppr_options;
! 701: /* XXX Other reasons to avoid ppr? XXX */
! 702: if (width < MSG_EXT_WDTR_BUS_16_BIT)
! 703: ppr_options = 0;
! 704:
! 705: if ((tstate->discenable & devinfo.target_mask) == 0 ||
! 706: (tstate->tagenable & devinfo.target_mask) == 0)
! 707: ppr_options &= ~MSG_EXT_PPR_PROT_IUS;
! 708:
! 709: ahd_find_syncrate(ahd, &period, &ppr_options, AHD_SYNCRATE_MAX);
! 710: ahd_validate_offset(ahd, NULL, period, &offset, width, ROLE_UNKNOWN);
! 711:
! 712: if (offset == 0) {
! 713: period = 0;
! 714: ppr_options = 0;
! 715: }
! 716:
! 717: if (ppr_options != 0 && tinfo->user.transport_version >= 3) {
! 718: tinfo->goal.transport_version = tinfo->user.transport_version;
! 719: tinfo->curr.transport_version = tinfo->user.transport_version;
! 720: }
! 721:
! 722: ahd_set_syncrate(ahd, &devinfo, period, offset, ppr_options,
! 723: AHD_TRANS_GOAL, FALSE);
! 724:
! 725: splx(s);
! 726: }
! 727:
! 728: void
! 729: aic_timer_reset(aic_timer_t *timer, u_int msec, ahd_callback_t *func,
! 730: void *arg)
! 731: {
! 732: uint64_t ticks;
! 733:
! 734: ticks = msec;
! 735: ticks *= hz;
! 736: ticks /= 1000;
! 737: callout_reset(timer, ticks, func, arg);
! 738: }
! 739:
! 740: void
! 741: aic_scb_timer_reset(struct scb *scb, u_int msec)
! 742: {
! 743: uint64_t ticks;
! 744:
! 745: ticks = msec;
! 746: ticks *= hz;
! 747: ticks /= 1000;
! 748: if (!(scb->xs->xs_control & XS_CTL_POLL))
! 749: callout_reset(&scb->xs->xs_callout, ticks, ahd_timeout, scb);
! 750: }
! 751:
! 752: void
! 753: ahd_flush_device_writes(struct ahd_softc *ahd)
! 754: {
! 755: /* XXX Is this sufficient for all architectures??? */
! 756: ahd_inb(ahd, INTSTAT);
! 757: }
! 758:
! 759: void
! 760: aic_platform_scb_free(struct ahd_softc *ahd, struct scb *scb)
! 761: {
! 762: int s;
! 763:
! 764: ahd_lock(ahd, &s);
! 765:
! 766: if ((ahd->flags & AHD_RESOURCE_SHORTAGE) != 0) {
! 767: ahd->flags &= ~AHD_RESOURCE_SHORTAGE;
! 768: }
! 769:
! 770: if (!cold) {
! 771: /* we are no longer in autoconf */
! 772: timeout_del(&scb->xs->stimeout);
! 773: }
! 774:
! 775: ahd_unlock(ahd, &s);
! 776: }
! 777:
! 778: void
! 779: ahd_print_path(struct ahd_softc *ahd, struct scb *scb)
! 780: {
! 781: sc_print_addr(scb->xs->sc_link);
! 782: }
! 783:
! 784: void
! 785: ahd_platform_dump_card_state(struct ahd_softc *ahd)
! 786: {
! 787: /* Nothing to do here for OpenBSD */
! 788: printf("FEATURES = 0x%x, FLAGS = 0x%x, CHIP = 0x%x BUGS =0x%x\n",
! 789: ahd->features, ahd->flags, ahd->chip, ahd->bugs);
! 790: }
! 791:
! 792: void
! 793: ahd_platform_flushwork(struct ahd_softc *ahd)
! 794: {
! 795: }
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