sys/dev/disk/aic7xxx/aic79xx_osm.c

   1 /*
   2  * Bus independent FreeBSD shim for the aic79xx based Adaptec SCSI controllers
   3  *
   4  * Copyright (c) 1994-2002, 2004 Justin T. Gibbs.
   5  * Copyright (c) 2001-2002 Adaptec Inc.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions, and the following disclaimer,
  13  *    without modification.
  14  * 2. The name of the author may not be used to endorse or promote products
  15  *    derived from this software without specific prior written permission.
  16  *
  17  * Alternatively, this software may be distributed under the terms of the
  18  * GNU Public License ("GPL").
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
  24  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  * $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/aic79xx_osm.c#35 $
  33  *
  34  * $FreeBSD: src/sys/dev/aic7xxx/aic79xx_osm.c,v 1.23 2005/12/04 02:12:40 ru Exp $
  35  * $DragonFly: src/sys/dev/disk/aic7xxx/aic79xx_osm.c,v 1.23 2008/02/10 00:01:02 pavalos Exp $
  36  */
  37
  38 #include "aic79xx_osm.h"
  39 #include "aic79xx_inline.h"
  40
  41 #include <sys/kthread.h>
  42
  43 #include "opt_ddb.h"
  44 #ifdef DDB
  45 #include <ddb/ddb.h>
  46 #endif
  47
  48 #ifndef AHD_TMODE_ENABLE
  49 #define AHD_TMODE_ENABLE 0
  50 #endif
  51
  52 #include "aic_osm_lib.c"
  53
  54 #define ccb_scb_ptr spriv_ptr0
  55
  56 #if 0
  57 static void     ahd_dump_targcmd(struct target_cmd *cmd);
  58 #endif
  59 static int      ahd_modevent(module_t mod, int type, void *data);
  60 static void     ahd_action(struct cam_sim *sim, union ccb *ccb);
  61 static void     ahd_set_tran_settings(struct ahd_softc *ahd,
  62                                       int our_id, char channel,
  63                                       struct ccb_trans_settings *cts);
  64 static void     ahd_get_tran_settings(struct ahd_softc *ahd,
  65                                       int our_id, char channel,
  66                                       struct ccb_trans_settings *cts);
  67 static void     ahd_async(void *callback_arg, uint32_t code,
  68                           struct cam_path *path, void *arg);
  69 static void     ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs,
  70                                 int nsegments, int error);
  71 static void     ahd_poll(struct cam_sim *sim);
  72 static void     ahd_setup_data(struct ahd_softc *ahd, struct cam_sim *sim,
  73                                struct ccb_scsiio *csio, struct scb *scb);
  74 static void     ahd_abort_ccb(struct ahd_softc *ahd, struct cam_sim *sim,
  75                               union ccb *ccb);
  76 static int      ahd_create_path(struct ahd_softc *ahd,
  77                                 char channel, u_int target, u_int lun,
  78                                 struct cam_path **path);
  79
  80 static int
  81 ahd_create_path(struct ahd_softc *ahd, char channel, u_int target,
  82                 u_int lun, struct cam_path **path)
  83 {
  84         path_id_t path_id;
  85
  86         path_id = cam_sim_path(ahd->platform_data->sim);
  87         return (xpt_create_path(path, /*periph*/NULL,
  88                                 path_id, target, lun));
  89 }
  90
  91 int
  92 ahd_map_int(struct ahd_softc *ahd)
  93 {
  94         int error;
  95
  96         /* Hook up our interrupt handler */
  97         error = bus_setup_intr(ahd->dev_softc, ahd->platform_data->irq,
  98                                INTR_MPSAFE, ahd_platform_intr, ahd,
  99                                &ahd->platform_data->ih, NULL);
 100         if (error != 0)
 101                 device_printf(ahd->dev_softc, "bus_setup_intr() failed: %d\n",
 102                               error);
 103         return (error);
 104 }
 105
 106 /*
 107  * Attach all the sub-devices we can find
 108  */
 109 int
 110 ahd_attach(struct ahd_softc *ahd)
 111 {
 112         char   ahd_info[256];
 113         struct ccb_setasync csa;
 114         struct cam_sim *sim;
 115         struct cam_path *path;
 116         int count;
 117
 118         count = 0;
 119         sim = NULL;
 120
 121         /*
 122          * Create a thread to perform all recovery.
 123          */
 124         if (ahd_spawn_recovery_thread(ahd) != 0)
 125                 goto fail;
 126
 127         ahd_controller_info(ahd, ahd_info);
 128         kprintf("%s\n", ahd_info);
 129         ahd_lock(ahd);
 130
 131         /*
 132          * Construct our SIM entry
 133          */
 134         sim = cam_sim_alloc(ahd_action, ahd_poll, "ahd", ahd,
 135                             device_get_unit(ahd->dev_softc),
 136                             1, AHD_MAX_QUEUE, NULL);
 137         if (sim == NULL)
 138                 goto fail;
 139
 140         if (xpt_bus_register(sim, /*bus_id*/0) != CAM_SUCCESS) {
 141                 cam_sim_free(sim);
 142                 sim = NULL;
 143                 goto fail;
 144         }
 145
 146         if (xpt_create_path(&path, /*periph*/NULL,
 147                             cam_sim_path(sim), CAM_TARGET_WILDCARD,
 148                             CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
 149                 xpt_bus_deregister(cam_sim_path(sim));
 150                 cam_sim_free(sim);
 151                 sim = NULL;
 152                 goto fail;
 153         }
 154
 155         xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
 156         csa.ccb_h.func_code = XPT_SASYNC_CB;
 157         csa.event_enable = AC_LOST_DEVICE;
 158         csa.callback = ahd_async;
 159         csa.callback_arg = sim;
 160         xpt_action((union ccb *)&csa);
 161         count++;
 162
 163 fail:
 164         ahd->platform_data->sim = sim;
 165         ahd->platform_data->path = path;
 166         ahd_unlock(ahd);
 167         if (count != 0) {
 168                 /* We have to wait until after any system dumps... */
 169                 ahd->platform_data->eh =
 170                     EVENTHANDLER_REGISTER(shutdown_post_sync, ahd_shutdown,
 171                                           ahd, SHUTDOWN_PRI_DRIVER);
 172                 ahd_intr_enable(ahd, TRUE);
 173         }
 174
 175         return (count);
 176 }
 177
 178 /*
 179  * Catch an interrupt from the adapter
 180  */
 181 void
 182 ahd_platform_intr(void *arg)
 183 {
 184         struct  ahd_softc *ahd;
 185
 186         ahd = (struct ahd_softc *)arg;
 187         ahd_lock(ahd);
 188         ahd_intr(ahd);
 189         ahd_unlock(ahd);
 190 }
 191
 192 /*
 193  * We have an scb which has been processed by the
 194  * adaptor, now we look to see how the operation
 195  * went.
 196  */
 197 void
 198 ahd_done(struct ahd_softc *ahd, struct scb *scb)
 199 {
 200         union ccb *ccb;
 201
 202         CAM_DEBUG(scb->io_ctx->ccb_h.path, CAM_DEBUG_TRACE,
 203                   ("ahd_done - scb %d\n", SCB_GET_TAG(scb)));
 204
 205         ccb = scb->io_ctx;
 206         LIST_REMOVE(scb, pending_links);
 207         if ((scb->flags & SCB_TIMEDOUT) != 0)
 208                 LIST_REMOVE(scb, timedout_links);
 209
 210         callout_stop(&scb->io_timer);
 211
 212         if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
 213                 bus_dmasync_op_t op;
 214
 215                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
 216                         op = BUS_DMASYNC_POSTREAD;
 217                 else
 218                         op = BUS_DMASYNC_POSTWRITE;
 219                 bus_dmamap_sync(ahd->buffer_dmat, scb->dmamap, op);
 220                 bus_dmamap_unload(ahd->buffer_dmat, scb->dmamap);
 221         }
 222
 223 #ifdef AHD_TARGET_MODE
 224         if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
 225                 struct cam_path *ccb_path;
 226
 227                 /*
 228                  * If we have finally disconnected, clean up our
 229                  * pending device state.
 230                  * XXX - There may be error states that cause where
 231                  *       we will remain connected.
 232                  */
 233                 ccb_path = ccb->ccb_h.path;
 234                 if (ahd->pending_device != NULL
 235                  && xpt_path_comp(ahd->pending_device->path, ccb_path) == 0) {
 236
 237                         if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
 238                                 ahd->pending_device = NULL;
 239                         } else {
 240                                 xpt_print_path(ccb->ccb_h.path);
 241                                 kprintf("Still disconnected\n");
 242                                 ahd_freeze_ccb(ccb);
 243                         }
 244                 }
 245
 246                 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG)
 247                         ccb->ccb_h.status |= CAM_REQ_CMP;
 248                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
 249                 ahd_free_scb(ahd, scb);
 250                 xpt_done(ccb);
 251                 return;
 252         }
 253 #endif
 254
 255         if ((scb->flags & SCB_RECOVERY_SCB) != 0) {
 256                 struct  scb *list_scb;
 257
 258                 ahd->scb_data.recovery_scbs--;
 259
 260                 if (aic_get_transaction_status(scb) == CAM_BDR_SENT
 261                  || aic_get_transaction_status(scb) == CAM_REQ_ABORTED)
 262                         aic_set_transaction_status(scb, CAM_CMD_TIMEOUT);
 263
 264                 if (ahd->scb_data.recovery_scbs == 0) {
 265                         /*
 266                          * All recovery actions have completed successfully,
 267                          * so reinstate the timeouts for all other pending
 268                          * commands.
 269                          */
 270                         LIST_FOREACH(list_scb,
 271                                      &ahd->pending_scbs, pending_links) {
 272
 273                                 aic_scb_timer_reset(list_scb,
 274                                                     aic_get_timeout(scb));
 275                         }
 276
 277                         ahd_print_path(ahd, scb);
 278                         kprintf("no longer in timeout, status = %x\n",
 279                                ccb->ccb_h.status);
 280                 }
 281         }
 282
 283         /* Don't clobber any existing error state */
 284         if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) {
 285                 ccb->ccb_h.status |= CAM_REQ_CMP;
 286         } else if ((scb->flags & SCB_SENSE) != 0) {
 287                 /*
 288                  * We performed autosense retrieval.
 289                  *
 290                  * Zero any sense not transferred by the
 291                  * device.  The SCSI spec mandates that any
 292                  * untransfered data should be assumed to be
 293                  * zero.  Complete the 'bounce' of sense information
 294                  * through buffers accessible via bus-space by
 295                  * copying it into the clients csio.
 296                  */
 297                 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data));
 298                 memcpy(&ccb->csio.sense_data,
 299                        ahd_get_sense_buf(ahd, scb),
 300 /* XXX What size do we want to use??? */
 301                         sizeof(ccb->csio.sense_data)
 302                        - ccb->csio.sense_resid);
 303                 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID;
 304         } else if ((scb->flags & SCB_PKT_SENSE) != 0) {
 305                 struct scsi_status_iu_header *siu;
 306                 u_int sense_len;
 307                 int i;
 308
 309                 /*
 310                  * Copy only the sense data into the provided buffer.
 311                  */
 312                 siu = (struct scsi_status_iu_header *)scb->sense_data;
 313                 sense_len = MIN(scsi_4btoul(siu->sense_length),
 314                                 sizeof(ccb->csio.sense_data));
 315                 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data));
 316                 memcpy(&ccb->csio.sense_data,
 317                        ahd_get_sense_buf(ahd, scb) + SIU_SENSE_OFFSET(siu),
 318                        sense_len);
 319                 kprintf("Copied %d bytes of sense data offset %d:", sense_len,
 320                        SIU_SENSE_OFFSET(siu));
 321                 for (i = 0; i < sense_len; i++)
 322                         kprintf(" 0x%x", ((uint8_t *)&ccb->csio.sense_data)[i]);
 323                 kprintf("\n");
 324                 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID;
 325         }
 326         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
 327         ahd_free_scb(ahd, scb);
 328         xpt_done(ccb);
 329 }
 330
 331 static void
 332 ahd_action(struct cam_sim *sim, union ccb *ccb)
 333 {
 334         struct  ahd_softc *ahd;
 335 #ifdef AHD_TARGET_MODE
 336         struct  ahd_tmode_lstate *lstate;
 337 #endif
 338         u_int   target_id;
 339         u_int   our_id;
 340
 341         CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahd_action\n"));
 342
 343         ahd = (struct ahd_softc *)cam_sim_softc(sim);
 344
 345         target_id = ccb->ccb_h.target_id;
 346         our_id = SIM_SCSI_ID(ahd, sim);
 347
 348         switch (ccb->ccb_h.func_code) {
 349         /* Common cases first */
 350 #ifdef AHD_TARGET_MODE
 351         case XPT_ACCEPT_TARGET_IO:      /* Accept Host Target Mode CDB */
 352         case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/
 353         {
 354                 struct     ahd_tmode_tstate *tstate;
 355                 cam_status status;
 356
 357                 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate,
 358                                              &lstate, TRUE);
 359
 360                 if (status != CAM_REQ_CMP) {
 361                         if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
 362                                 /* Response from the black hole device */
 363                                 tstate = NULL;
 364                                 lstate = ahd->black_hole;
 365                         } else {
 366                                 ccb->ccb_h.status = status;
 367                                 xpt_done(ccb);
 368                                 break;
 369                         }
 370                 }
 371                 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
 372
 373                         SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h,
 374                                           sim_links.sle);
 375                         ccb->ccb_h.status = CAM_REQ_INPROG;
 376                         if ((ahd->flags & AHD_TQINFIFO_BLOCKED) != 0)
 377                                 ahd_run_tqinfifo(ahd, /*paused*/FALSE);
 378                         break;
 379                 }
 380
 381                 /*
 382                  * The target_id represents the target we attempt to
 383                  * select.  In target mode, this is the initiator of
 384                  * the original command.
 385                  */
 386                 our_id = target_id;
 387                 target_id = ccb->csio.init_id;
 388                 /* FALLTHROUGH */
 389         }
 390 #endif
 391         case XPT_SCSI_IO:       /* Execute the requested I/O operation */
 392         case XPT_RESET_DEV:     /* Bus Device Reset the specified SCSI device */
 393         {
 394                 struct  scb *scb;
 395                 struct  hardware_scb *hscb;
 396                 struct  ahd_initiator_tinfo *tinfo;
 397                 struct  ahd_tmode_tstate *tstate;
 398                 u_int   col_idx;
 399
 400                 if ((ahd->flags & AHD_INITIATORROLE) == 0
 401                  && (ccb->ccb_h.func_code == XPT_SCSI_IO
 402                   || ccb->ccb_h.func_code == XPT_RESET_DEV)) {
 403                         ccb->ccb_h.status = CAM_PROVIDE_FAIL;
 404                         xpt_done(ccb);
 405                         return;
 406                 }
 407
 408                 /*
 409                  * get an scb to use.
 410                  */
 411                 tinfo = ahd_fetch_transinfo(ahd, 'A', our_id,
 412                                             target_id, &tstate);
 413                 if ((ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) == 0
 414                  || (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0
 415                  || ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
 416                         col_idx = AHD_NEVER_COL_IDX;
 417                 } else {
 418                         col_idx = AHD_BUILD_COL_IDX(target_id,
 419                                                     ccb->ccb_h.target_lun);
 420                 }
 421                 if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) {
 422
 423                         xpt_freeze_simq(sim, /*count*/1);
 424                         ahd->flags |= AHD_RESOURCE_SHORTAGE;
 425                         ccb->ccb_h.status = CAM_REQUEUE_REQ;
 426                         xpt_done(ccb);
 427                         return;
 428                 }
 429
 430                 hscb = scb->hscb;
 431
 432                 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE,
 433                           ("start scb(%p)\n", scb));
 434                 scb->io_ctx = ccb;
 435                 /*
 436                  * So we can find the SCB when an abort is requested
 437                  */
 438                 ccb->ccb_h.ccb_scb_ptr = scb;
 439
 440                 /*
 441                  * Put all the arguments for the xfer in the scb
 442                  */
 443                 hscb->control = 0;
 444                 hscb->scsiid = BUILD_SCSIID(ahd, sim, target_id, our_id);
 445                 hscb->lun = ccb->ccb_h.target_lun;
 446                 if (ccb->ccb_h.func_code == XPT_RESET_DEV) {
 447                         hscb->cdb_len = 0;
 448                         scb->flags |= SCB_DEVICE_RESET;
 449                         hscb->control |= MK_MESSAGE;
 450                         hscb->task_management = SIU_TASKMGMT_LUN_RESET;
 451                         ahd_execute_scb(scb, NULL, 0, 0);
 452                 } else {
 453 #ifdef AHD_TARGET_MODE
 454                         if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
 455                                 struct target_data *tdata;
 456
 457                                 tdata = &hscb->shared_data.tdata;
 458                                 if (ahd->pending_device == lstate)
 459                                         scb->flags |= SCB_TARGET_IMMEDIATE;
 460                                 hscb->control |= TARGET_SCB;
 461                                 tdata->target_phases = 0;
 462                                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
 463                                         tdata->target_phases |= SPHASE_PENDING;
 464                                         tdata->scsi_status =
 465                                             ccb->csio.scsi_status;
 466                                 }
 467                                 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT)
 468                                         tdata->target_phases |= NO_DISCONNECT;
 469
 470                                 tdata->initiator_tag =
 471                                     ahd_htole16(ccb->csio.tag_id);
 472                         }
 473 #endif
 474                         hscb->task_management = 0;
 475                         if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID)
 476                                 hscb->control |= ccb->csio.tag_action;
 477
 478                         ahd_setup_data(ahd, sim, &ccb->csio, scb);
 479                 }
 480                 break;
 481         }
 482 #ifdef AHD_TARGET_MODE
 483         case XPT_NOTIFY_ACK:
 484         case XPT_IMMED_NOTIFY:
 485         {
 486                 struct     ahd_tmode_tstate *tstate;
 487                 struct     ahd_tmode_lstate *lstate;
 488                 cam_status status;
 489
 490                 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate,
 491                                              &lstate, TRUE);
 492
 493                 if (status != CAM_REQ_CMP) {
 494                         ccb->ccb_h.status = status;
 495                         xpt_done(ccb);
 496                         break;
 497                 }
 498                 SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h,
 499                                   sim_links.sle);
 500                 ccb->ccb_h.status = CAM_REQ_INPROG;
 501                 ahd_send_lstate_events(ahd, lstate);
 502                 break;
 503         }
 504         case XPT_EN_LUN:                /* Enable LUN as a target */
 505                 ahd_handle_en_lun(ahd, sim, ccb);
 506                 xpt_done(ccb);
 507                 break;
 508 #endif
 509         case XPT_ABORT:                 /* Abort the specified CCB */
 510         {
 511                 ahd_abort_ccb(ahd, sim, ccb);
 512                 break;
 513         }
 514         case XPT_SET_TRAN_SETTINGS:
 515         {
 516                 ahd_set_tran_settings(ahd, SIM_SCSI_ID(ahd, sim),
 517                                       SIM_CHANNEL(ahd, sim), &ccb->cts);
 518                 xpt_done(ccb);
 519                 break;
 520         }
 521         case XPT_GET_TRAN_SETTINGS:
 522         /* Get default/user set transfer settings for the target */
 523         {
 524                 ahd_get_tran_settings(ahd, SIM_SCSI_ID(ahd, sim),
 525                                       SIM_CHANNEL(ahd, sim), &ccb->cts);
 526                 xpt_done(ccb);
 527                 break;
 528         }
 529         case XPT_CALC_GEOMETRY:
 530         {
 531                 cam_calc_geometry(&ccb->ccg, ahd->flags & AHD_EXTENDED_TRANS_A);
 532                 xpt_done(ccb);
 533                 break;
 534         }
 535         case XPT_RESET_BUS:             /* Reset the specified SCSI bus */
 536         {
 537                 int  found;
 538
 539                 found = ahd_reset_channel(ahd, SIM_CHANNEL(ahd, sim),
 540                                           /*initiate reset*/TRUE);
 541                 if (bootverbose) {
 542                         xpt_print_path(SIM_PATH(ahd, sim));
 543                         kprintf("SCSI bus reset delivered. "
 544                                "%d SCBs aborted.\n", found);
 545                 }
 546                 ccb->ccb_h.status = CAM_REQ_CMP;
 547                 xpt_done(ccb);
 548                 break;
 549         }
 550         case XPT_TERM_IO:               /* Terminate the I/O process */
 551                 /* XXX Implement */
 552                 ccb->ccb_h.status = CAM_REQ_INVALID;
 553                 xpt_done(ccb);
 554                 break;
 555         case XPT_PATH_INQ:              /* Path routing inquiry */
 556         {
 557                 struct ccb_pathinq *cpi = &ccb->cpi;
 558
 559                 cpi->version_num = 1; /* XXX??? */
 560                 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE;
 561                 if ((ahd->features & AHD_WIDE) != 0)
 562                         cpi->hba_inquiry |= PI_WIDE_16;
 563                 if ((ahd->features & AHD_TARGETMODE) != 0) {
 564                         cpi->target_sprt = PIT_PROCESSOR
 565                                          | PIT_DISCONNECT
 566                                          | PIT_TERM_IO;
 567                 } else {
 568                         cpi->target_sprt = 0;
 569                 }
 570                 cpi->hba_misc = 0;
 571                 cpi->hba_eng_cnt = 0;
 572                 cpi->max_target = (ahd->features & AHD_WIDE) ? 15 : 7;
 573                 cpi->max_lun = AHD_NUM_LUNS_NONPKT - 1;
 574                 cpi->initiator_id = ahd->our_id;
 575                 if ((ahd->flags & AHD_RESET_BUS_A) == 0) {
 576                         cpi->hba_misc |= PIM_NOBUSRESET;
 577                 }
 578                 cpi->bus_id = cam_sim_bus(sim);
 579                 cpi->base_transfer_speed = 3300;
 580                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
 581                 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
 582                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
 583                 cpi->unit_number = cam_sim_unit(sim);
 584                 cpi->protocol = PROTO_SCSI;
 585                 cpi->protocol_version = SCSI_REV_2;
 586                 cpi->transport = XPORT_SPI;
 587                 cpi->transport_version = 2;
 588                 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_ST;
 589                 cpi->transport_version = 4;
 590                 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_DT_ST;
 591                 cpi->ccb_h.status = CAM_REQ_CMP;
 592                 xpt_done(ccb);
 593                 break;
 594         }
 595         default:
 596                 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
 597                 xpt_done(ccb);
 598                 break;
 599         }
 600 }
 601
 602
 603 static void
 604 ahd_set_tran_settings(struct ahd_softc *ahd, int our_id, char channel,
 605                       struct ccb_trans_settings *cts)
 606 {
 607         struct    ahd_devinfo devinfo;
 608         struct    ccb_trans_settings_scsi *scsi;
 609         struct    ccb_trans_settings_spi *spi;
 610         struct    ahd_initiator_tinfo *tinfo;
 611         struct    ahd_tmode_tstate *tstate;
 612         uint16_t *discenable;
 613         uint16_t *tagenable;
 614         u_int     update_type;
 615
 616         scsi = &cts->proto_specific.scsi;
 617         spi = &cts->xport_specific.spi;
 618         ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim),
 619                             cts->ccb_h.target_id,
 620                             cts->ccb_h.target_lun,
 621                             SIM_CHANNEL(ahd, sim),
 622                             ROLE_UNKNOWN);
 623         tinfo = ahd_fetch_transinfo(ahd, devinfo.channel,
 624                                     devinfo.our_scsiid,
 625                                     devinfo.target, &tstate);
 626         update_type = 0;
 627         if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
 628                 update_type |= AHD_TRANS_GOAL;
 629                 discenable = &tstate->discenable;
 630                 tagenable = &tstate->tagenable;
 631                 tinfo->curr.protocol_version = cts->protocol_version;
 632                 tinfo->curr.transport_version = cts->transport_version;
 633                 tinfo->goal.protocol_version = cts->protocol_version;
 634                 tinfo->goal.transport_version = cts->transport_version;
 635         } else if (cts->type == CTS_TYPE_USER_SETTINGS) {
 636                 update_type |= AHD_TRANS_USER;
 637                 discenable = &ahd->user_discenable;
 638                 tagenable = &ahd->user_tagenable;
 639                 tinfo->user.protocol_version = cts->protocol_version;
 640                 tinfo->user.transport_version = cts->transport_version;
 641         } else {
 642                 cts->ccb_h.status = CAM_REQ_INVALID;
 643                 return;
 644         }
 645
 646         if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
 647                 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0)
 648                         *discenable |= devinfo.target_mask;
 649                 else
 650                         *discenable &= ~devinfo.target_mask;
 651         }
 652
 653         if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
 654                 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0)
 655                         *tagenable |= devinfo.target_mask;
 656                 else
 657                         *tagenable &= ~devinfo.target_mask;
 658         }
 659
 660         if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
 661                 ahd_validate_width(ahd, /*tinfo limit*/NULL,
 662                                    &spi->bus_width, ROLE_UNKNOWN);
 663                 ahd_set_width(ahd, &devinfo, spi->bus_width,
 664                               update_type, /*paused*/FALSE);
 665         }
 666
 667         if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) {
 668                 if (update_type == AHD_TRANS_USER)
 669                         spi->ppr_options = tinfo->user.ppr_options;
 670                 else
 671                         spi->ppr_options = tinfo->goal.ppr_options;
 672         }
 673
 674         if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) {
 675                 if (update_type == AHD_TRANS_USER)
 676                         spi->sync_offset = tinfo->user.offset;
 677                 else
 678                         spi->sync_offset = tinfo->goal.offset;
 679         }
 680
 681         if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) {
 682                 if (update_type == AHD_TRANS_USER)
 683                         spi->sync_period = tinfo->user.period;
 684                 else
 685                         spi->sync_period = tinfo->goal.period;
 686         }
 687
 688         if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0)
 689          || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) {
 690                 u_int   maxsync;
 691
 692                 maxsync = AHD_SYNCRATE_MAX;
 693
 694                 if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT)
 695                         spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ;
 696
 697                 if ((*discenable & devinfo.target_mask) == 0)
 698                         spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ;
 699
 700                 ahd_find_syncrate(ahd, &spi->sync_period,
 701                                   &spi->ppr_options, maxsync);
 702                 ahd_validate_offset(ahd, /*tinfo limit*/NULL,
 703                                     spi->sync_period, &spi->sync_offset,
 704                                     spi->bus_width, ROLE_UNKNOWN);
 705
 706                 /* We use a period of 0 to represent async */
 707                 if (spi->sync_offset == 0) {
 708                         spi->sync_period = 0;
 709                         spi->ppr_options = 0;
 710                 }
 711
 712                 ahd_set_syncrate(ahd, &devinfo, spi->sync_period,
 713                                  spi->sync_offset, spi->ppr_options,
 714                                  update_type, /*paused*/FALSE);
 715         }
 716         cts->ccb_h.status = CAM_REQ_CMP;
 717 }
 718
 719 static void
 720 ahd_get_tran_settings(struct ahd_softc *ahd, int our_id, char channel,
 721                       struct ccb_trans_settings *cts)
 722 {
 723         struct  ahd_devinfo devinfo;
 724         struct  ccb_trans_settings_scsi *scsi;
 725         struct  ccb_trans_settings_spi *spi;
 726         struct  ahd_initiator_tinfo *targ_info;
 727         struct  ahd_tmode_tstate *tstate;
 728         struct  ahd_transinfo *tinfo;
 729
 730         scsi = &cts->proto_specific.scsi;
 731         spi = &cts->xport_specific.spi;
 732         ahd_compile_devinfo(&devinfo, our_id,
 733                             cts->ccb_h.target_id,
 734                             cts->ccb_h.target_lun,
 735                             channel, ROLE_UNKNOWN);
 736         targ_info = ahd_fetch_transinfo(ahd, devinfo.channel,
 737                                         devinfo.our_scsiid,
 738                                         devinfo.target, &tstate);
 739
 740         if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
 741                 tinfo = &targ_info->curr;
 742         else
 743                 tinfo = &targ_info->user;
 744
 745         scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
 746         spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB;
 747         if (cts->type == CTS_TYPE_USER_SETTINGS) {
 748                 if ((ahd->user_discenable & devinfo.target_mask) != 0)
 749                         spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
 750
 751                 if ((ahd->user_tagenable & devinfo.target_mask) != 0)
 752                         scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
 753         } else {
 754                 if ((tstate->discenable & devinfo.target_mask) != 0)
 755                         spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
 756
 757                 if ((tstate->tagenable & devinfo.target_mask) != 0)
 758                         scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
 759         }
 760         cts->protocol_version = tinfo->protocol_version;
 761         cts->transport_version = tinfo->transport_version;
 762
 763         spi->sync_period = tinfo->period;
 764         spi->sync_offset = tinfo->offset;
 765         spi->bus_width = tinfo->width;
 766         spi->ppr_options = tinfo->ppr_options;
 767
 768         cts->protocol = PROTO_SCSI;
 769         cts->transport = XPORT_SPI;
 770         spi->valid = CTS_SPI_VALID_SYNC_RATE
 771                    | CTS_SPI_VALID_SYNC_OFFSET
 772                    | CTS_SPI_VALID_BUS_WIDTH
 773                    | CTS_SPI_VALID_PPR_OPTIONS;
 774
 775         if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
 776                 scsi->valid = CTS_SCSI_VALID_TQ;
 777                 spi->valid |= CTS_SPI_VALID_DISC;
 778         } else {
 779                 scsi->valid = 0;
 780         }
 781
 782         cts->ccb_h.status = CAM_REQ_CMP;
 783 }
 784
 785 static void
 786 ahd_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg)
 787 {
 788         struct ahd_softc *ahd;
 789         struct cam_sim *sim;
 790
 791         sim = (struct cam_sim *)callback_arg;
 792         ahd = (struct ahd_softc *)cam_sim_softc(sim);
 793         switch (code) {
 794         case AC_LOST_DEVICE:
 795         {
 796                 struct  ahd_devinfo devinfo;
 797
 798                 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim),
 799                                     xpt_path_target_id(path),
 800                                     xpt_path_lun_id(path),
 801                                     SIM_CHANNEL(ahd, sim),
 802                                     ROLE_UNKNOWN);
 803
 804                 /*
 805                  * Revert to async/narrow transfers
 806                  * for the next device.
 807                  */
 808                 ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
 809                               AHD_TRANS_GOAL|AHD_TRANS_CUR, /*paused*/FALSE);
 810                 ahd_set_syncrate(ahd, &devinfo, /*period*/0, /*offset*/0,
 811                                  /*ppr_options*/0, AHD_TRANS_GOAL|AHD_TRANS_CUR,
 812                                  /*paused*/FALSE);
 813                 break;
 814         }
 815         default:
 816                 break;
 817         }
 818 }
 819
 820 static void
 821 ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments,
 822                 int error)
 823 {
 824         struct  scb *scb;
 825         union   ccb *ccb;
 826         struct  ahd_softc *ahd;
 827         struct  ahd_initiator_tinfo *tinfo;
 828         struct  ahd_tmode_tstate *tstate;
 829         u_int   mask;
 830
 831         scb = (struct scb *)arg;
 832         ccb = scb->io_ctx;
 833         ahd = scb->ahd_softc;
 834
 835         if (error != 0) {
 836                 if (error == EFBIG)
 837                         aic_set_transaction_status(scb, CAM_REQ_TOO_BIG);
 838                 else
 839                         aic_set_transaction_status(scb, CAM_REQ_CMP_ERR);
 840                 if (nsegments != 0)
 841                         bus_dmamap_unload(ahd->buffer_dmat, scb->dmamap);
 842                 ahd_free_scb(ahd, scb);
 843                 xpt_done(ccb);
 844                 return;
 845         }
 846         scb->sg_count = 0;
 847         if (nsegments != 0) {
 848                 void *sg;
 849                 bus_dmasync_op_t op;
 850                 u_int i;
 851
 852                 /* Copy the segments into our SG list */
 853                 for (i = nsegments, sg = scb->sg_list; i > 0; i--) {
 854
 855                         sg = ahd_sg_setup(ahd, scb, sg, dm_segs->ds_addr,
 856                                           dm_segs->ds_len,
 857                                           /*last*/i == 1);
 858                         dm_segs++;
 859                 }
 860
 861                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
 862                         op = BUS_DMASYNC_PREREAD;
 863                 else
 864                         op = BUS_DMASYNC_PREWRITE;
 865
 866                 bus_dmamap_sync(ahd->buffer_dmat, scb->dmamap, op);
 867
 868                 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
 869                         struct target_data *tdata;
 870
 871                         tdata = &scb->hscb->shared_data.tdata;
 872                         tdata->target_phases |= DPHASE_PENDING;
 873                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
 874                                 tdata->data_phase = P_DATAOUT;
 875                         else
 876                                 tdata->data_phase = P_DATAIN;
 877                 }
 878         }
 879
 880         /*
 881          * Last time we need to check if this SCB needs to
 882          * be aborted.
 883          */
 884         if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) {
 885                 if (nsegments != 0)
 886                         bus_dmamap_unload(ahd->buffer_dmat,
 887                                           scb->dmamap);
 888                 ahd_free_scb(ahd, scb);
 889                 xpt_done(ccb);
 890                 return;
 891         }
 892
 893         tinfo = ahd_fetch_transinfo(ahd, SCSIID_CHANNEL(ahd, scb->hscb->scsiid),
 894                                     SCSIID_OUR_ID(scb->hscb->scsiid),
 895                                     SCSIID_TARGET(ahd, scb->hscb->scsiid),
 896                                     &tstate);
 897
 898         mask = SCB_GET_TARGET_MASK(ahd, scb);
 899
 900         if ((tstate->discenable & mask) != 0
 901          && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0)
 902                 scb->hscb->control |= DISCENB;
 903
 904         if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) {
 905                 scb->flags |= SCB_PACKETIZED;
 906                 if (scb->hscb->task_management != 0)
 907                         scb->hscb->control &= ~MK_MESSAGE;
 908         }
 909
 910         if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0
 911          && (tinfo->goal.width != 0
 912           || tinfo->goal.period != 0
 913           || tinfo->goal.ppr_options != 0)) {
 914                 scb->flags |= SCB_NEGOTIATE;
 915                 scb->hscb->control |= MK_MESSAGE;
 916         } else if ((tstate->auto_negotiate & mask) != 0) {
 917                 scb->flags |= SCB_AUTO_NEGOTIATE;
 918                 scb->hscb->control |= MK_MESSAGE;
 919         }
 920
 921         LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links);
 922
 923         ccb->ccb_h.status |= CAM_SIM_QUEUED;
 924
 925         aic_scb_timer_start(scb);
 926
 927         if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) {
 928                 /* Define a mapping from our tag to the SCB. */
 929                 ahd->scb_data.scbindex[SCB_GET_TAG(scb)] = scb;
 930                 ahd_pause(ahd);
 931                 ahd_set_scbptr(ahd, SCB_GET_TAG(scb));
 932                 ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_TARG);
 933                 ahd_unpause(ahd);
 934         } else {
 935                 ahd_queue_scb(ahd, scb);
 936         }
 937 }
 938
 939 static void
 940 ahd_poll(struct cam_sim *sim)
 941 {
 942         ahd_intr(cam_sim_softc(sim));
 943 }
 944
 945 static void
 946 ahd_setup_data(struct ahd_softc *ahd, struct cam_sim *sim,
 947                struct ccb_scsiio *csio, struct scb *scb)
 948 {
 949         struct hardware_scb *hscb;
 950         struct ccb_hdr *ccb_h;
 951
 952         hscb = scb->hscb;
 953         ccb_h = &csio->ccb_h;
 954
 955         csio->resid = 0;
 956         csio->sense_resid = 0;
 957         if (ccb_h->func_code == XPT_SCSI_IO) {
 958                 hscb->cdb_len = csio->cdb_len;
 959                 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) {
 960
 961                         if (hscb->cdb_len > MAX_CDB_LEN
 962                          && (ccb_h->flags & CAM_CDB_PHYS) == 0) {
 963
 964                                 /*
 965                                  * Should CAM start to support CDB sizes
 966                                  * greater than 16 bytes, we could use
 967                                  * the sense buffer to store the CDB.
 968                                  */
 969                                 aic_set_transaction_status(scb,
 970                                                            CAM_REQ_INVALID);
 971                                 ahd_free_scb(ahd, scb);
 972                                 xpt_done((union ccb *)csio);
 973                                 return;
 974                         }
 975                         if ((ccb_h->flags & CAM_CDB_PHYS) != 0) {
 976                                 hscb->shared_data.idata.cdb_from_host.cdbptr =
 977                                    aic_htole64((uintptr_t)csio->cdb_io.cdb_ptr);
 978                                 hscb->shared_data.idata.cdb_from_host.cdblen =
 979                                    csio->cdb_len;
 980                                 hscb->cdb_len |= SCB_CDB_LEN_PTR;
 981                         } else {
 982                                 memcpy(hscb->shared_data.idata.cdb,
 983                                        csio->cdb_io.cdb_ptr,
 984                                        hscb->cdb_len);
 985                         }
 986                 } else {
 987                         if (hscb->cdb_len > MAX_CDB_LEN) {
 988
 989                                 aic_set_transaction_status(scb,
 990                                                            CAM_REQ_INVALID);
 991                                 ahd_free_scb(ahd, scb);
 992                                 xpt_done((union ccb *)csio);
 993                                 return;
 994                         }
 995                         memcpy(hscb->shared_data.idata.cdb,
 996                                csio->cdb_io.cdb_bytes, hscb->cdb_len);
 997                 }
 998         }
 999
1000         /* Only use S/G if there is a transfer */
1001         if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
1002                 if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) {
1003                         /* We've been given a pointer to a single buffer */
1004                         if ((ccb_h->flags & CAM_DATA_PHYS) == 0) {
1005                                 int error;
1006
1007                                 crit_enter();
1008                                 error = bus_dmamap_load(ahd->buffer_dmat,
1009                                                         scb->dmamap,
1010                                                         csio->data_ptr,
1011                                                         csio->dxfer_len,
1012                                                         ahd_execute_scb,
1013                                                         scb, /*flags*/0);
1014                                 if (error == EINPROGRESS) {
1015                                         /*
1016                                          * So as to maintain ordering,
1017                                          * freeze the controller queue
1018                                          * until our mapping is
1019                                          * returned.
1020                                          */
1021                                         xpt_freeze_simq(sim,
1022                                                         /*count*/1);
1023                                         scb->io_ctx->ccb_h.status |=
1024                                             CAM_RELEASE_SIMQ;
1025                                 }
1026                                 crit_exit();
1027                         } else {
1028                                 struct bus_dma_segment seg;
1029
1030                                 /* Pointer to physical buffer */
1031                                 if (csio->dxfer_len > AHD_MAXTRANSFER_SIZE)
1032                                         panic("ahd_setup_data - Transfer size "
1033                                               "larger than can device max");
1034
1035                                 seg.ds_addr =
1036                                     (bus_addr_t)(vm_offset_t)csio->data_ptr;
1037                                 seg.ds_len = csio->dxfer_len;
1038                                 ahd_execute_scb(scb, &seg, 1, 0);
1039                         }
1040                 } else {
1041                         struct bus_dma_segment *segs;
1042
1043                         if ((ccb_h->flags & CAM_DATA_PHYS) != 0)
1044                                 panic("ahd_setup_data - Physical segment "
1045                                       "pointers unsupported");
1046
1047                         if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0)
1048                                 panic("ahd_setup_data - Virtual segment "
1049                                       "addresses unsupported");
1050
1051                         /* Just use the segments provided */
1052                         segs = (struct bus_dma_segment *)csio->data_ptr;
1053                         ahd_execute_scb(scb, segs, csio->sglist_cnt, 0);
1054                 }
1055         } else {
1056                 ahd_execute_scb(scb, NULL, 0, 0);
1057         }
1058 }
1059
1060 static void
1061 ahd_abort_ccb(struct ahd_softc *ahd, struct cam_sim *sim, union ccb *ccb)
1062 {
1063         union ccb *abort_ccb;
1064
1065         abort_ccb = ccb->cab.abort_ccb;
1066         switch (abort_ccb->ccb_h.func_code) {
1067 #ifdef AHD_TARGET_MODE
1068         case XPT_ACCEPT_TARGET_IO:
1069         case XPT_IMMED_NOTIFY:
1070         case XPT_CONT_TARGET_IO:
1071         {
1072                 struct ahd_tmode_tstate *tstate;
1073                 struct ahd_tmode_lstate *lstate;
1074                 struct ccb_hdr_slist *list;
1075                 cam_status status;
1076
1077                 status = ahd_find_tmode_devs(ahd, sim, abort_ccb, &tstate,
1078                                              &lstate, TRUE);
1079
1080                 if (status != CAM_REQ_CMP) {
1081                         ccb->ccb_h.status = status;
1082                         break;
1083                 }
1084
1085                 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO)
1086                         list = &lstate->accept_tios;
1087                 else if (abort_ccb->ccb_h.func_code == XPT_IMMED_NOTIFY)
1088                         list = &lstate->immed_notifies;
1089                 else
1090                         list = NULL;
1091
1092                 if (list != NULL) {
1093                         struct ccb_hdr *curelm;
1094                         int found;
1095
1096                         curelm = SLIST_FIRST(list);
1097                         found = 0;
1098                         if (curelm == &abort_ccb->ccb_h) {
1099                                 found = 1;
1100                                 SLIST_REMOVE_HEAD(list, sim_links.sle);
1101                         } else {
1102                                 while(curelm != NULL) {
1103                                         struct ccb_hdr *nextelm;
1104
1105                                         nextelm =
1106                                             SLIST_NEXT(curelm, sim_links.sle);
1107
1108                                         if (nextelm == &abort_ccb->ccb_h) {
1109                                                 found = 1;
1110                                                 SLIST_NEXT(curelm,
1111                                                            sim_links.sle) =
1112                                                     SLIST_NEXT(nextelm,
1113                                                                sim_links.sle);
1114                                                 break;
1115                                         }
1116                                         curelm = nextelm;
1117                                 }
1118                         }
1119
1120                         if (found) {
1121                                 abort_ccb->ccb_h.status = CAM_REQ_ABORTED;
1122                                 xpt_done(abort_ccb);
1123                                 ccb->ccb_h.status = CAM_REQ_CMP;
1124                         } else {
1125                                 xpt_print_path(abort_ccb->ccb_h.path);
1126                                 kprintf("Not found\n");
1127                                 ccb->ccb_h.status = CAM_PATH_INVALID;
1128                         }
1129                         break;
1130                 }
1131                 /* FALLTHROUGH */
1132         }
1133 #endif
1134         case XPT_SCSI_IO:
1135                 /* XXX Fully implement the hard ones */
1136                 ccb->ccb_h.status = CAM_UA_ABORT;
1137                 break;
1138         default:
1139                 ccb->ccb_h.status = CAM_REQ_INVALID;
1140                 break;
1141         }
1142         xpt_done(ccb);
1143 }
1144
1145 void
1146 ahd_send_async(struct ahd_softc *ahd, char channel, u_int target,
1147                 u_int lun, ac_code code, void *opt_arg)
1148 {
1149         struct  ccb_trans_settings cts;
1150         struct cam_path *path;
1151         void *arg;
1152         int error;
1153
1154         arg = NULL;
1155         error = ahd_create_path(ahd, channel, target, lun, &path);
1156
1157         if (error != CAM_REQ_CMP)
1158                 return;
1159
1160         switch (code) {
1161         case AC_TRANSFER_NEG:
1162         {
1163                 struct  ccb_trans_settings_scsi *scsi;
1164
1165                 cts.type = CTS_TYPE_CURRENT_SETTINGS;
1166                 scsi = &cts.proto_specific.scsi;
1167                 cts.ccb_h.path = path;
1168                 cts.ccb_h.target_id = target;
1169                 cts.ccb_h.target_lun = lun;
1170                 ahd_get_tran_settings(ahd, ahd->our_id, channel, &cts);
1171                 arg = &cts;
1172                 scsi->valid &= ~CTS_SCSI_VALID_TQ;
1173                 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
1174                 if (opt_arg == NULL)
1175                         break;
1176                 if (*((ahd_queue_alg *)opt_arg) == AHD_QUEUE_TAGGED)
1177                         scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB;
1178                 scsi->valid |= CTS_SCSI_VALID_TQ;
1179                 break;
1180         }
1181         case AC_SENT_BDR:
1182         case AC_BUS_RESET:
1183                 break;
1184         default:
1185                 panic("ahd_send_async: Unexpected async event");
1186         }
1187         xpt_async(code, path, arg);
1188         xpt_free_path(path);
1189 }
1190
1191 void
1192 ahd_platform_set_tags(struct ahd_softc *ahd,
1193                       struct ahd_devinfo *devinfo, int enable)
1194 {
1195 }
1196
1197 int
1198 ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg)
1199 {
1200         ahd->platform_data = kmalloc(sizeof(struct ahd_platform_data), M_DEVBUF,
1201                                     M_INTWAIT | M_ZERO);
1202         return (0);
1203 }
1204
1205 void
1206 ahd_platform_free(struct ahd_softc *ahd)
1207 {
1208         struct ahd_platform_data *pdata;
1209
1210         pdata = ahd->platform_data;
1211         if (pdata != NULL) {
1212                 if (pdata->regs[0] != NULL)
1213                         bus_release_resource(ahd->dev_softc,
1214                                              pdata->regs_res_type[0],
1215                                              pdata->regs_res_id[0],
1216                                              pdata->regs[0]);
1217
1218                 if (pdata->regs[1] != NULL)
1219                         bus_release_resource(ahd->dev_softc,
1220                                              pdata->regs_res_type[1],
1221                                              pdata->regs_res_id[1],
1222                                              pdata->regs[1]);
1223
1224                 if (pdata->irq != NULL)
1225                         bus_release_resource(ahd->dev_softc,
1226                                              pdata->irq_res_type,
1227                                              0, pdata->irq);
1228
1229                 if (pdata->sim != NULL) {
1230                         xpt_async(AC_LOST_DEVICE, pdata->path, NULL);
1231                         xpt_free_path(pdata->path);
1232                         xpt_bus_deregister(cam_sim_path(pdata->sim));
1233                         cam_sim_free(pdata->sim);
1234                 }
1235                 if (pdata->eh != NULL)
1236                         EVENTHANDLER_DEREGISTER(shutdown_post_sync, pdata->eh);
1237                 kfree(ahd->platform_data, M_DEVBUF);
1238         }
1239 }
1240
1241 int
1242 ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd)
1243 {
1244         /* We don't sort softcs under FreeBSD so report equal always */
1245         return (0);
1246 }
1247
1248 int
1249 ahd_detach(device_t dev)
1250 {
1251         struct ahd_softc *ahd;
1252
1253         device_printf(dev, "detaching device\n");
1254         ahd = device_get_softc(dev);
1255         ahd_lock(ahd);
1256         TAILQ_REMOVE(&ahd_tailq, ahd, links);
1257         ahd_intr_enable(ahd, FALSE);
1258         bus_teardown_intr(dev, ahd->platform_data->irq, ahd->platform_data->ih);
1259         ahd_unlock(ahd);
1260         ahd_free(ahd);
1261         return (0);
1262 }
1263
1264 #if 0
1265 static void
1266 ahd_dump_targcmd(struct target_cmd *cmd)
1267 {
1268         uint8_t *byte;
1269         uint8_t *last_byte;
1270         int i;
1271
1272         byte = &cmd->initiator_channel;
1273         /* Debugging info for received commands */
1274         last_byte = &cmd[1].initiator_channel;
1275
1276         i = 0;
1277         while (byte < last_byte) {
1278                 if (i == 0)
1279                         kprintf("\t");
1280                 kprintf("%#x", *byte++);
1281                 i++;
1282                 if (i == 8) {
1283                         kprintf("\n");
1284                         i = 0;
1285                 } else {
1286                         kprintf(", ");
1287                 }
1288         }
1289 }
1290 #endif
1291
1292 static int
1293 ahd_modevent(module_t mod, int type, void *data)
1294 {
1295         /* XXX Deal with busy status on unload. */
1296         /* XXX Deal with unknown events */
1297         return 0;
1298 }
1299
1300 static moduledata_t ahd_mod = {
1301         "ahd",
1302         ahd_modevent,
1303         NULL
1304 };
1305
1306 /********************************** DDB Hooks *********************************/
1307 #ifdef DDB
1308 static struct ahd_softc *ahd_ddb_softc;
1309 static int ahd_ddb_paused;
1310 static int ahd_ddb_paused_on_entry;
1311 DB_COMMAND(ahd_sunit, ahd_ddb_sunit)
1312 {
1313         struct ahd_softc *list_ahd;
1314
1315         ahd_ddb_softc = NULL;
1316         TAILQ_FOREACH(list_ahd, &ahd_tailq, links) {
1317                 if (list_ahd->unit == addr)
1318                         ahd_ddb_softc = list_ahd;
1319         }
1320         if (ahd_ddb_softc == NULL)
1321                 db_error("No matching softc found!\n");
1322 }
1323
1324 DB_COMMAND(ahd_pause, ahd_ddb_pause)
1325 {
1326         if (ahd_ddb_softc == NULL) {
1327                 db_error("Must set unit with ahd_sunit first!\n");
1328                 return;
1329         }
1330         if (ahd_ddb_paused == 0) {
1331                 ahd_ddb_paused++;
1332                 if (ahd_is_paused(ahd_ddb_softc)) {
1333                         ahd_ddb_paused_on_entry++;
1334                         return;
1335                 }
1336                 ahd_pause(ahd_ddb_softc);
1337         }
1338 }
1339
1340 DB_COMMAND(ahd_unpause, ahd_ddb_unpause)
1341 {
1342         if (ahd_ddb_softc == NULL) {
1343                 db_error("Must set unit with ahd_sunit first!\n");
1344                 return;
1345         }
1346         if (ahd_ddb_paused != 0) {
1347                 ahd_ddb_paused = 0;
1348                 if (ahd_ddb_paused_on_entry)
1349                         return;
1350                 ahd_unpause(ahd_ddb_softc);
1351         } else if (ahd_ddb_paused_on_entry != 0) {
1352                 /* Two unpauses to clear a paused on entry. */
1353                 ahd_ddb_paused_on_entry = 0;
1354                 ahd_unpause(ahd_ddb_softc);
1355         }
1356 }
1357
1358 DB_COMMAND(ahd_in, ahd_ddb_in)
1359 {
1360         int c;
1361         int size;
1362
1363         if (ahd_ddb_softc == NULL) {
1364                 db_error("Must set unit with ahd_sunit first!\n");
1365                 return;
1366         }
1367         if (have_addr == 0)
1368                 return;
1369
1370         size = 1;
1371         while ((c = *modif++) != '\0') {
1372                 switch (c) {
1373                 case 'b':
1374                         size = 1;
1375                         break;
1376                 case 'w':
1377                         size = 2;
1378                         break;
1379                 case 'l':
1380                         size = 4;
1381                 break;
1382                 }
1383         }
1384
1385         if (count <= 0)
1386                 count = 1;
1387         while (--count >= 0) {
1388                 db_printf("%04lx (M)%x: \t", (u_long)addr,
1389                           ahd_inb(ahd_ddb_softc, MODE_PTR));
1390                 switch (size) {
1391                 case 1:
1392                         db_printf("%02x\n", ahd_inb(ahd_ddb_softc, addr));
1393                         break;
1394                 case 2:
1395                         db_printf("%04x\n", ahd_inw(ahd_ddb_softc, addr));
1396                         break;
1397                 case 4:
1398                         db_printf("%08x\n", ahd_inl(ahd_ddb_softc, addr));
1399                         break;
1400                 }
1401         }
1402 }
1403
1404 DB_SET(ahd_out, ahd_ddb_out, db_cmd_set, CS_MORE, NULL)
1405 {
1406         db_expr_t old_value;
1407         db_expr_t new_value;
1408         int       size;
1409
1410         if (ahd_ddb_softc == NULL) {
1411                 db_error("Must set unit with ahd_sunit first!\n");
1412                 return;
1413         }
1414
1415         switch (modif[0]) {
1416         case '\0':
1417         case 'b':
1418                 size = 1;
1419                 break;
1420         case 'h':
1421                 size = 2;
1422                 break;
1423         case 'l':
1424                 size = 4;
1425                 break;
1426         default:
1427                 db_error("Unknown size\n");
1428                 return;
1429         }
1430
1431         while (db_expression(&new_value)) {
1432                 switch (size) {
1433                 default:
1434                 case 1:
1435                         old_value = ahd_inb(ahd_ddb_softc, addr);
1436                         ahd_outb(ahd_ddb_softc, addr, new_value);
1437                         break;
1438                 case 2:
1439                         old_value = ahd_inw(ahd_ddb_softc, addr);
1440                         ahd_outw(ahd_ddb_softc, addr, new_value);
1441                         break;
1442                 case 4:
1443                         old_value = ahd_inl(ahd_ddb_softc, addr);
1444                         ahd_outl(ahd_ddb_softc, addr, new_value);
1445                         break;
1446                 }
1447                 db_printf("%04lx (M)%x: \t0x%lx\t=\t0x%lx",
1448                           (u_long)addr, ahd_inb(ahd_ddb_softc, MODE_PTR),
1449                           (u_long)old_value, (u_long)new_value);
1450                 addr += size;
1451         }
1452         db_skip_to_eol();
1453 }
1454
1455 DB_COMMAND(ahd_dump, ahd_ddb_dump)
1456 {
1457         if (ahd_ddb_softc == NULL) {
1458                 db_error("Must set unit with ahd_sunit first!\n");
1459                 return;
1460         }
1461         ahd_dump_card_state(ahd_ddb_softc);
1462 }
1463
1464 #endif
1465
1466
1467 DECLARE_MODULE(ahd, ahd_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
1468 MODULE_DEPEND(ahd, cam, 1, 1, 1);
1469 MODULE_VERSION(ahd, 1);