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 1.26 2008/03/06 20:07:51 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
 308                 /*
 309                  * Copy only the sense data into the provided buffer.
 310                  */
 311                 siu = (struct scsi_status_iu_header *)scb->sense_data;
 312                 sense_len = MIN(scsi_4btoul(siu->sense_length),
 313                                 sizeof(ccb->csio.sense_data));
 314                 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data));
 315                 memcpy(&ccb->csio.sense_data,
 316                        ahd_get_sense_buf(ahd, scb) + SIU_SENSE_OFFSET(siu),
 317                        sense_len);
 318 #ifdef AHD_DEBUG
 319                 if ((ahd_debug & AHD_SHOW_SENSE) != 0) {
 320                         uint8_t *sense_data = (uint8_t *)&ccb->csio.sense_data;
 321                         u_int i;
 322
 323                         kprintf("Copied %d bytes of sense data offset %d:",
 324                                sense_len, SIU_SENSE_OFFSET(siu));
 325                         for (i = 0; i < sense_len; i++)
 326                                 kprintf(" 0x%x", *sense_data++);
 327                         kprintf("\n");
 328                 }
 329 #endif
 330                 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID;
 331         }
 332         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
 333         ahd_free_scb(ahd, scb);
 334         xpt_done(ccb);
 335 }
 336
 337 static void
 338 ahd_action(struct cam_sim *sim, union ccb *ccb)
 339 {
 340         struct  ahd_softc *ahd;
 341 #ifdef AHD_TARGET_MODE
 342         struct  ahd_tmode_lstate *lstate;
 343 #endif
 344         u_int   target_id;
 345         u_int   our_id;
 346
 347         CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahd_action\n"));
 348
 349         ahd = (struct ahd_softc *)cam_sim_softc(sim);
 350
 351         target_id = ccb->ccb_h.target_id;
 352         our_id = SIM_SCSI_ID(ahd, sim);
 353
 354         switch (ccb->ccb_h.func_code) {
 355         /* Common cases first */
 356 #ifdef AHD_TARGET_MODE
 357         case XPT_ACCEPT_TARGET_IO:      /* Accept Host Target Mode CDB */
 358         case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/
 359         {
 360                 struct     ahd_tmode_tstate *tstate;
 361                 cam_status status;
 362
 363                 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate,
 364                                              &lstate, TRUE);
 365
 366                 if (status != CAM_REQ_CMP) {
 367                         if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
 368                                 /* Response from the black hole device */
 369                                 tstate = NULL;
 370                                 lstate = ahd->black_hole;
 371                         } else {
 372                                 ccb->ccb_h.status = status;
 373                                 xpt_done(ccb);
 374                                 break;
 375                         }
 376                 }
 377                 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
 378
 379                         SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h,
 380                                           sim_links.sle);
 381                         ccb->ccb_h.status = CAM_REQ_INPROG;
 382                         if ((ahd->flags & AHD_TQINFIFO_BLOCKED) != 0)
 383                                 ahd_run_tqinfifo(ahd, /*paused*/FALSE);
 384                         break;
 385                 }
 386
 387                 /*
 388                  * The target_id represents the target we attempt to
 389                  * select.  In target mode, this is the initiator of
 390                  * the original command.
 391                  */
 392                 our_id = target_id;
 393                 target_id = ccb->csio.init_id;
 394                 /* FALLTHROUGH */
 395         }
 396 #endif
 397         case XPT_SCSI_IO:       /* Execute the requested I/O operation */
 398         case XPT_RESET_DEV:     /* Bus Device Reset the specified SCSI device */
 399         {
 400                 struct  scb *scb;
 401                 struct  hardware_scb *hscb;
 402                 struct  ahd_initiator_tinfo *tinfo;
 403                 struct  ahd_tmode_tstate *tstate;
 404                 u_int   col_idx;
 405
 406                 if ((ahd->flags & AHD_INITIATORROLE) == 0
 407                  && (ccb->ccb_h.func_code == XPT_SCSI_IO
 408                   || ccb->ccb_h.func_code == XPT_RESET_DEV)) {
 409                         ccb->ccb_h.status = CAM_PROVIDE_FAIL;
 410                         xpt_done(ccb);
 411                         return;
 412                 }
 413
 414                 /*
 415                  * get an scb to use.
 416                  */
 417                 tinfo = ahd_fetch_transinfo(ahd, 'A', our_id,
 418                                             target_id, &tstate);
 419                 if ((ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) == 0
 420                  || (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0
 421                  || ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
 422                         col_idx = AHD_NEVER_COL_IDX;
 423                 } else {
 424                         col_idx = AHD_BUILD_COL_IDX(target_id,
 425                                                     ccb->ccb_h.target_lun);
 426                 }
 427                 if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) {
 428
 429                         xpt_freeze_simq(sim, /*count*/1);
 430                         ahd->flags |= AHD_RESOURCE_SHORTAGE;
 431                         ccb->ccb_h.status = CAM_REQUEUE_REQ;
 432                         xpt_done(ccb);
 433                         return;
 434                 }
 435
 436                 hscb = scb->hscb;
 437
 438                 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE,
 439                           ("start scb(%p)\n", scb));
 440                 scb->io_ctx = ccb;
 441                 /*
 442                  * So we can find the SCB when an abort is requested
 443                  */
 444                 ccb->ccb_h.ccb_scb_ptr = scb;
 445
 446                 /*
 447                  * Put all the arguments for the xfer in the scb
 448                  */
 449                 hscb->control = 0;
 450                 hscb->scsiid = BUILD_SCSIID(ahd, sim, target_id, our_id);
 451                 hscb->lun = ccb->ccb_h.target_lun;
 452                 if (ccb->ccb_h.func_code == XPT_RESET_DEV) {
 453                         hscb->cdb_len = 0;
 454                         scb->flags |= SCB_DEVICE_RESET;
 455                         hscb->control |= MK_MESSAGE;
 456                         hscb->task_management = SIU_TASKMGMT_LUN_RESET;
 457                         ahd_execute_scb(scb, NULL, 0, 0);
 458                 } else {
 459 #ifdef AHD_TARGET_MODE
 460                         if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
 461                                 struct target_data *tdata;
 462
 463                                 tdata = &hscb->shared_data.tdata;
 464                                 if (ahd->pending_device == lstate)
 465                                         scb->flags |= SCB_TARGET_IMMEDIATE;
 466                                 hscb->control |= TARGET_SCB;
 467                                 tdata->target_phases = 0;
 468                                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
 469                                         tdata->target_phases |= SPHASE_PENDING;
 470                                         tdata->scsi_status =
 471                                             ccb->csio.scsi_status;
 472                                 }
 473                                 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT)
 474                                         tdata->target_phases |= NO_DISCONNECT;
 475
 476                                 tdata->initiator_tag =
 477                                     ahd_htole16(ccb->csio.tag_id);
 478                         }
 479 #endif
 480                         hscb->task_management = 0;
 481                         if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID)
 482                                 hscb->control |= ccb->csio.tag_action;
 483
 484                         ahd_setup_data(ahd, sim, &ccb->csio, scb);
 485                 }
 486                 break;
 487         }
 488 #ifdef AHD_TARGET_MODE
 489         case XPT_NOTIFY_ACK:
 490         case XPT_IMMED_NOTIFY:
 491         {
 492                 struct     ahd_tmode_tstate *tstate;
 493                 struct     ahd_tmode_lstate *lstate;
 494                 cam_status status;
 495
 496                 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate,
 497                                              &lstate, TRUE);
 498
 499                 if (status != CAM_REQ_CMP) {
 500                         ccb->ccb_h.status = status;
 501                         xpt_done(ccb);
 502                         break;
 503                 }
 504                 SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h,
 505                                   sim_links.sle);
 506                 ccb->ccb_h.status = CAM_REQ_INPROG;
 507                 ahd_send_lstate_events(ahd, lstate);
 508                 break;
 509         }
 510         case XPT_EN_LUN:                /* Enable LUN as a target */
 511                 ahd_handle_en_lun(ahd, sim, ccb);
 512                 xpt_done(ccb);
 513                 break;
 514 #endif
 515         case XPT_ABORT:                 /* Abort the specified CCB */
 516         {
 517                 ahd_abort_ccb(ahd, sim, ccb);
 518                 break;
 519         }
 520         case XPT_SET_TRAN_SETTINGS:
 521         {
 522                 ahd_set_tran_settings(ahd, SIM_SCSI_ID(ahd, sim),
 523                                       SIM_CHANNEL(ahd, sim), &ccb->cts);
 524                 xpt_done(ccb);
 525                 break;
 526         }
 527         case XPT_GET_TRAN_SETTINGS:
 528         /* Get default/user set transfer settings for the target */
 529         {
 530                 ahd_get_tran_settings(ahd, SIM_SCSI_ID(ahd, sim),
 531                                       SIM_CHANNEL(ahd, sim), &ccb->cts);
 532                 xpt_done(ccb);
 533                 break;
 534         }
 535         case XPT_CALC_GEOMETRY:
 536         {
 537                 cam_calc_geometry(&ccb->ccg, ahd->flags & AHD_EXTENDED_TRANS_A);
 538                 xpt_done(ccb);
 539                 break;
 540         }
 541         case XPT_RESET_BUS:             /* Reset the specified SCSI bus */
 542         {
 543                 int  found;
 544
 545                 found = ahd_reset_channel(ahd, SIM_CHANNEL(ahd, sim),
 546                                           /*initiate reset*/TRUE);
 547                 if (bootverbose) {
 548                         xpt_print_path(SIM_PATH(ahd, sim));
 549                         kprintf("SCSI bus reset delivered. "
 550                                "%d SCBs aborted.\n", found);
 551                 }
 552                 ccb->ccb_h.status = CAM_REQ_CMP;
 553                 xpt_done(ccb);
 554                 break;
 555         }
 556         case XPT_TERM_IO:               /* Terminate the I/O process */
 557                 /* XXX Implement */
 558                 ccb->ccb_h.status = CAM_REQ_INVALID;
 559                 xpt_done(ccb);
 560                 break;
 561         case XPT_PATH_INQ:              /* Path routing inquiry */
 562         {
 563                 struct ccb_pathinq *cpi = &ccb->cpi;
 564
 565                 cpi->version_num = 1; /* XXX??? */
 566                 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE;
 567                 if ((ahd->features & AHD_WIDE) != 0)
 568                         cpi->hba_inquiry |= PI_WIDE_16;
 569                 if ((ahd->features & AHD_TARGETMODE) != 0) {
 570                         cpi->target_sprt = PIT_PROCESSOR
 571                                          | PIT_DISCONNECT
 572                                          | PIT_TERM_IO;
 573                 } else {
 574                         cpi->target_sprt = 0;
 575                 }
 576                 cpi->hba_misc = 0;
 577                 cpi->hba_eng_cnt = 0;
 578                 cpi->max_target = (ahd->features & AHD_WIDE) ? 15 : 7;
 579                 cpi->max_lun = AHD_NUM_LUNS_NONPKT - 1;
 580                 cpi->initiator_id = ahd->our_id;
 581                 if ((ahd->flags & AHD_RESET_BUS_A) == 0) {
 582                         cpi->hba_misc |= PIM_NOBUSRESET;
 583                 }
 584                 cpi->bus_id = cam_sim_bus(sim);
 585                 cpi->base_transfer_speed = 3300;
 586                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
 587                 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
 588                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
 589                 cpi->unit_number = cam_sim_unit(sim);
 590                 cpi->protocol = PROTO_SCSI;
 591                 cpi->protocol_version = SCSI_REV_2;
 592                 cpi->transport = XPORT_SPI;
 593                 cpi->transport_version = 4;
 594                 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_DT_ST
 595                                                     | SID_SPI_IUS
 596                                                     | SID_SPI_QAS;
 597                 cpi->ccb_h.status = CAM_REQ_CMP;
 598                 xpt_done(ccb);
 599                 break;
 600         }
 601         default:
 602                 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
 603                 xpt_done(ccb);
 604                 break;
 605         }
 606 }
 607
 608
 609 static void
 610 ahd_set_tran_settings(struct ahd_softc *ahd, int our_id, char channel,
 611                       struct ccb_trans_settings *cts)
 612 {
 613         struct    ahd_devinfo devinfo;
 614         struct    ccb_trans_settings_scsi *scsi;
 615         struct    ccb_trans_settings_spi *spi;
 616         struct    ahd_initiator_tinfo *tinfo;
 617         struct    ahd_tmode_tstate *tstate;
 618         uint16_t *discenable;
 619         uint16_t *tagenable;
 620         u_int     update_type;
 621
 622         scsi = &cts->proto_specific.scsi;
 623         spi = &cts->xport_specific.spi;
 624         ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim),
 625                             cts->ccb_h.target_id,
 626                             cts->ccb_h.target_lun,
 627                             SIM_CHANNEL(ahd, sim),
 628                             ROLE_UNKNOWN);
 629         tinfo = ahd_fetch_transinfo(ahd, devinfo.channel,
 630                                     devinfo.our_scsiid,
 631                                     devinfo.target, &tstate);
 632         update_type = 0;
 633         if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
 634                 update_type |= AHD_TRANS_GOAL;
 635                 discenable = &tstate->discenable;
 636                 tagenable = &tstate->tagenable;
 637                 tinfo->curr.protocol_version = cts->protocol_version;
 638                 tinfo->curr.transport_version = cts->transport_version;
 639                 tinfo->goal.protocol_version = cts->protocol_version;
 640                 tinfo->goal.transport_version = cts->transport_version;
 641         } else if (cts->type == CTS_TYPE_USER_SETTINGS) {
 642                 update_type |= AHD_TRANS_USER;
 643                 discenable = &ahd->user_discenable;
 644                 tagenable = &ahd->user_tagenable;
 645                 tinfo->user.protocol_version = cts->protocol_version;
 646                 tinfo->user.transport_version = cts->transport_version;
 647         } else {
 648                 cts->ccb_h.status = CAM_REQ_INVALID;
 649                 return;
 650         }
 651
 652         if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
 653                 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0)
 654                         *discenable |= devinfo.target_mask;
 655                 else
 656                         *discenable &= ~devinfo.target_mask;
 657         }
 658
 659         if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
 660                 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0)
 661                         *tagenable |= devinfo.target_mask;
 662                 else
 663                         *tagenable &= ~devinfo.target_mask;
 664         }
 665
 666         if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
 667                 ahd_validate_width(ahd, /*tinfo limit*/NULL,
 668                                    &spi->bus_width, ROLE_UNKNOWN);
 669                 ahd_set_width(ahd, &devinfo, spi->bus_width,
 670                               update_type, /*paused*/FALSE);
 671         }
 672
 673         if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) {
 674                 if (update_type == AHD_TRANS_USER)
 675                         spi->ppr_options = tinfo->user.ppr_options;
 676                 else
 677                         spi->ppr_options = tinfo->goal.ppr_options;
 678         }
 679
 680         if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) {
 681                 if (update_type == AHD_TRANS_USER)
 682                         spi->sync_offset = tinfo->user.offset;
 683                 else
 684                         spi->sync_offset = tinfo->goal.offset;
 685         }
 686
 687         if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) {
 688                 if (update_type == AHD_TRANS_USER)
 689                         spi->sync_period = tinfo->user.period;
 690                 else
 691                         spi->sync_period = tinfo->goal.period;
 692         }
 693
 694         if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0)
 695          || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) {
 696                 u_int   maxsync;
 697
 698                 maxsync = AHD_SYNCRATE_MAX;
 699
 700                 if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT)
 701                         spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ;
 702
 703                 if ((*discenable & devinfo.target_mask) == 0)
 704                         spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ;
 705
 706                 ahd_find_syncrate(ahd, &spi->sync_period,
 707                                   &spi->ppr_options, maxsync);
 708                 ahd_validate_offset(ahd, /*tinfo limit*/NULL,
 709                                     spi->sync_period, &spi->sync_offset,
 710                                     spi->bus_width, ROLE_UNKNOWN);
 711
 712                 /* We use a period of 0 to represent async */
 713                 if (spi->sync_offset == 0) {
 714                         spi->sync_period = 0;
 715                         spi->ppr_options = 0;
 716                 }
 717
 718                 ahd_set_syncrate(ahd, &devinfo, spi->sync_period,
 719                                  spi->sync_offset, spi->ppr_options,
 720                                  update_type, /*paused*/FALSE);
 721         }
 722         cts->ccb_h.status = CAM_REQ_CMP;
 723 }
 724
 725 static void
 726 ahd_get_tran_settings(struct ahd_softc *ahd, int our_id, char channel,
 727                       struct ccb_trans_settings *cts)
 728 {
 729         struct  ahd_devinfo devinfo;
 730         struct  ccb_trans_settings_scsi *scsi;
 731         struct  ccb_trans_settings_spi *spi;
 732         struct  ahd_initiator_tinfo *targ_info;
 733         struct  ahd_tmode_tstate *tstate;
 734         struct  ahd_transinfo *tinfo;
 735
 736         scsi = &cts->proto_specific.scsi;
 737         spi = &cts->xport_specific.spi;
 738         ahd_compile_devinfo(&devinfo, our_id,
 739                             cts->ccb_h.target_id,
 740                             cts->ccb_h.target_lun,
 741                             channel, ROLE_UNKNOWN);
 742         targ_info = ahd_fetch_transinfo(ahd, devinfo.channel,
 743                                         devinfo.our_scsiid,
 744                                         devinfo.target, &tstate);
 745
 746         if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
 747                 tinfo = &targ_info->curr;
 748         else
 749                 tinfo = &targ_info->user;
 750
 751         scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
 752         spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB;
 753         if (cts->type == CTS_TYPE_USER_SETTINGS) {
 754                 if ((ahd->user_discenable & devinfo.target_mask) != 0)
 755                         spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
 756
 757                 if ((ahd->user_tagenable & devinfo.target_mask) != 0)
 758                         scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
 759         } else {
 760                 if ((tstate->discenable & devinfo.target_mask) != 0)
 761                         spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
 762
 763                 if ((tstate->tagenable & devinfo.target_mask) != 0)
 764                         scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
 765         }
 766         cts->protocol_version = tinfo->protocol_version;
 767         cts->transport_version = tinfo->transport_version;
 768
 769         spi->sync_period = tinfo->period;
 770         spi->sync_offset = tinfo->offset;
 771         spi->bus_width = tinfo->width;
 772         spi->ppr_options = tinfo->ppr_options;
 773
 774         cts->protocol = PROTO_SCSI;
 775         cts->transport = XPORT_SPI;
 776         spi->valid = CTS_SPI_VALID_SYNC_RATE
 777                    | CTS_SPI_VALID_SYNC_OFFSET
 778                    | CTS_SPI_VALID_BUS_WIDTH
 779                    | CTS_SPI_VALID_PPR_OPTIONS;
 780
 781         if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
 782                 scsi->valid = CTS_SCSI_VALID_TQ;
 783                 spi->valid |= CTS_SPI_VALID_DISC;
 784         } else {
 785                 scsi->valid = 0;
 786         }
 787
 788         cts->ccb_h.status = CAM_REQ_CMP;
 789 }
 790
 791 static void
 792 ahd_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg)
 793 {
 794         struct ahd_softc *ahd;
 795         struct cam_sim *sim;
 796
 797         sim = (struct cam_sim *)callback_arg;
 798         ahd = (struct ahd_softc *)cam_sim_softc(sim);
 799         switch (code) {
 800         case AC_LOST_DEVICE:
 801         {
 802                 struct  ahd_devinfo devinfo;
 803
 804                 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim),
 805                                     xpt_path_target_id(path),
 806                                     xpt_path_lun_id(path),
 807                                     SIM_CHANNEL(ahd, sim),
 808                                     ROLE_UNKNOWN);
 809
 810                 /*
 811                  * Revert to async/narrow transfers
 812                  * for the next device.
 813                  */
 814                 ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
 815                               AHD_TRANS_GOAL|AHD_TRANS_CUR, /*paused*/FALSE);
 816                 ahd_set_syncrate(ahd, &devinfo, /*period*/0, /*offset*/0,
 817                                  /*ppr_options*/0, AHD_TRANS_GOAL|AHD_TRANS_CUR,
 818                                  /*paused*/FALSE);
 819                 break;
 820         }
 821         default:
 822                 break;
 823         }
 824 }
 825
 826 static void
 827 ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments,
 828                 int error)
 829 {
 830         struct  scb *scb;
 831         union   ccb *ccb;
 832         struct  ahd_softc *ahd;
 833         struct  ahd_initiator_tinfo *tinfo;
 834         struct  ahd_tmode_tstate *tstate;
 835         u_int   mask;
 836
 837         scb = (struct scb *)arg;
 838         ccb = scb->io_ctx;
 839         ahd = scb->ahd_softc;
 840
 841         if (error != 0) {
 842                 if (error == EFBIG)
 843                         aic_set_transaction_status(scb, CAM_REQ_TOO_BIG);
 844                 else
 845                         aic_set_transaction_status(scb, CAM_REQ_CMP_ERR);
 846                 if (nsegments != 0)
 847                         bus_dmamap_unload(ahd->buffer_dmat, scb->dmamap);
 848                 ahd_free_scb(ahd, scb);
 849                 xpt_done(ccb);
 850                 return;
 851         }
 852         scb->sg_count = 0;
 853         if (nsegments != 0) {
 854                 void *sg;
 855                 bus_dmasync_op_t op;
 856                 u_int i;
 857
 858                 /* Copy the segments into our SG list */
 859                 for (i = nsegments, sg = scb->sg_list; i > 0; i--) {
 860
 861                         sg = ahd_sg_setup(ahd, scb, sg, dm_segs->ds_addr,
 862                                           dm_segs->ds_len,
 863                                           /*last*/i == 1);
 864                         dm_segs++;
 865                 }
 866
 867                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
 868                         op = BUS_DMASYNC_PREREAD;
 869                 else
 870                         op = BUS_DMASYNC_PREWRITE;
 871
 872                 bus_dmamap_sync(ahd->buffer_dmat, scb->dmamap, op);
 873
 874                 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
 875                         struct target_data *tdata;
 876
 877                         tdata = &scb->hscb->shared_data.tdata;
 878                         tdata->target_phases |= DPHASE_PENDING;
 879                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
 880                                 tdata->data_phase = P_DATAOUT;
 881                         else
 882                                 tdata->data_phase = P_DATAIN;
 883                 }
 884         }
 885
 886         /*
 887          * Last time we need to check if this SCB needs to
 888          * be aborted.
 889          */
 890         if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) {
 891                 if (nsegments != 0)
 892                         bus_dmamap_unload(ahd->buffer_dmat,
 893                                           scb->dmamap);
 894                 ahd_free_scb(ahd, scb);
 895                 xpt_done(ccb);
 896                 return;
 897         }
 898
 899         tinfo = ahd_fetch_transinfo(ahd, SCSIID_CHANNEL(ahd, scb->hscb->scsiid),
 900                                     SCSIID_OUR_ID(scb->hscb->scsiid),
 901                                     SCSIID_TARGET(ahd, scb->hscb->scsiid),
 902                                     &tstate);
 903
 904         mask = SCB_GET_TARGET_MASK(ahd, scb);
 905
 906         if ((tstate->discenable & mask) != 0
 907          && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0)
 908                 scb->hscb->control |= DISCENB;
 909
 910         if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) {
 911                 scb->flags |= SCB_PACKETIZED;
 912                 if (scb->hscb->task_management != 0)
 913                         scb->hscb->control &= ~MK_MESSAGE;
 914         }
 915
 916         if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0
 917          && (tinfo->goal.width != 0
 918           || tinfo->goal.period != 0
 919           || tinfo->goal.ppr_options != 0)) {
 920                 scb->flags |= SCB_NEGOTIATE;
 921                 scb->hscb->control |= MK_MESSAGE;
 922         } else if ((tstate->auto_negotiate & mask) != 0) {
 923                 scb->flags |= SCB_AUTO_NEGOTIATE;
 924                 scb->hscb->control |= MK_MESSAGE;
 925         }
 926
 927         LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links);
 928
 929         ccb->ccb_h.status |= CAM_SIM_QUEUED;
 930
 931         aic_scb_timer_start(scb);
 932
 933         if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) {
 934                 /* Define a mapping from our tag to the SCB. */
 935                 ahd->scb_data.scbindex[SCB_GET_TAG(scb)] = scb;
 936                 ahd_pause(ahd);
 937                 ahd_set_scbptr(ahd, SCB_GET_TAG(scb));
 938                 ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_TARG);
 939                 ahd_unpause(ahd);
 940         } else {
 941                 ahd_queue_scb(ahd, scb);
 942         }
 943 }
 944
 945 static void
 946 ahd_poll(struct cam_sim *sim)
 947 {
 948         ahd_intr(cam_sim_softc(sim));
 949 }
 950
 951 static void
 952 ahd_setup_data(struct ahd_softc *ahd, struct cam_sim *sim,
 953                struct ccb_scsiio *csio, struct scb *scb)
 954 {
 955         struct hardware_scb *hscb;
 956         struct ccb_hdr *ccb_h;
 957
 958         hscb = scb->hscb;
 959         ccb_h = &csio->ccb_h;
 960
 961         csio->resid = 0;
 962         csio->sense_resid = 0;
 963         if (ccb_h->func_code == XPT_SCSI_IO) {
 964                 hscb->cdb_len = csio->cdb_len;
 965                 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) {
 966
 967                         if (hscb->cdb_len > MAX_CDB_LEN
 968                          && (ccb_h->flags & CAM_CDB_PHYS) == 0) {
 969
 970                                 /*
 971                                  * Should CAM start to support CDB sizes
 972                                  * greater than 16 bytes, we could use
 973                                  * the sense buffer to store the CDB.
 974                                  */
 975                                 aic_set_transaction_status(scb,
 976                                                            CAM_REQ_INVALID);
 977                                 ahd_free_scb(ahd, scb);
 978                                 xpt_done((union ccb *)csio);
 979                                 return;
 980                         }
 981                         if ((ccb_h->flags & CAM_CDB_PHYS) != 0) {
 982                                 hscb->shared_data.idata.cdb_from_host.cdbptr =
 983                                    aic_htole64((uintptr_t)csio->cdb_io.cdb_ptr);
 984                                 hscb->shared_data.idata.cdb_from_host.cdblen =
 985                                    csio->cdb_len;
 986                                 hscb->cdb_len |= SCB_CDB_LEN_PTR;
 987                         } else {
 988                                 memcpy(hscb->shared_data.idata.cdb,
 989                                        csio->cdb_io.cdb_ptr,
 990                                        hscb->cdb_len);
 991                         }
 992                 } else {
 993                         if (hscb->cdb_len > MAX_CDB_LEN) {
 994
 995                                 aic_set_transaction_status(scb,
 996                                                            CAM_REQ_INVALID);
 997                                 ahd_free_scb(ahd, scb);
 998                                 xpt_done((union ccb *)csio);
 999                                 return;
1000                         }
1001                         memcpy(hscb->shared_data.idata.cdb,
1002                                csio->cdb_io.cdb_bytes, hscb->cdb_len);
1003                 }
1004         }
1005
1006         /* Only use S/G if there is a transfer */
1007         if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
1008                 if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) {
1009                         /* We've been given a pointer to a single buffer */
1010                         if ((ccb_h->flags & CAM_DATA_PHYS) == 0) {
1011                                 int error;
1012
1013                                 crit_enter();
1014                                 error = bus_dmamap_load(ahd->buffer_dmat,
1015                                                         scb->dmamap,
1016                                                         csio->data_ptr,
1017                                                         csio->dxfer_len,
1018                                                         ahd_execute_scb,
1019                                                         scb, /*flags*/0);
1020                                 if (error == EINPROGRESS) {
1021                                         /*
1022                                          * So as to maintain ordering,
1023                                          * freeze the controller queue
1024                                          * until our mapping is
1025                                          * returned.
1026                                          */
1027                                         xpt_freeze_simq(sim,
1028                                                         /*count*/1);
1029                                         scb->io_ctx->ccb_h.status |=
1030                                             CAM_RELEASE_SIMQ;
1031                                 }
1032                                 crit_exit();
1033                         } else {
1034                                 struct bus_dma_segment seg;
1035
1036                                 /* Pointer to physical buffer */
1037                                 if (csio->dxfer_len > AHD_MAXTRANSFER_SIZE)
1038                                         panic("ahd_setup_data - Transfer size "
1039                                               "larger than can device max");
1040
1041                                 seg.ds_addr =
1042                                     (bus_addr_t)(vm_offset_t)csio->data_ptr;
1043                                 seg.ds_len = csio->dxfer_len;
1044                                 ahd_execute_scb(scb, &seg, 1, 0);
1045                         }
1046                 } else {
1047                         struct bus_dma_segment *segs;
1048
1049                         if ((ccb_h->flags & CAM_DATA_PHYS) != 0)
1050                                 panic("ahd_setup_data - Physical segment "
1051                                       "pointers unsupported");
1052
1053                         if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0)
1054                                 panic("ahd_setup_data - Virtual segment "
1055                                       "addresses unsupported");
1056
1057                         /* Just use the segments provided */
1058                         segs = (struct bus_dma_segment *)csio->data_ptr;
1059                         ahd_execute_scb(scb, segs, csio->sglist_cnt, 0);
1060                 }
1061         } else {
1062                 ahd_execute_scb(scb, NULL, 0, 0);
1063         }
1064 }
1065
1066 static void
1067 ahd_abort_ccb(struct ahd_softc *ahd, struct cam_sim *sim, union ccb *ccb)
1068 {
1069         union ccb *abort_ccb;
1070
1071         abort_ccb = ccb->cab.abort_ccb;
1072         switch (abort_ccb->ccb_h.func_code) {
1073 #ifdef AHD_TARGET_MODE
1074         case XPT_ACCEPT_TARGET_IO:
1075         case XPT_IMMED_NOTIFY:
1076         case XPT_CONT_TARGET_IO:
1077         {
1078                 struct ahd_tmode_tstate *tstate;
1079                 struct ahd_tmode_lstate *lstate;
1080                 struct ccb_hdr_slist *list;
1081                 cam_status status;
1082
1083                 status = ahd_find_tmode_devs(ahd, sim, abort_ccb, &tstate,
1084                                              &lstate, TRUE);
1085
1086                 if (status != CAM_REQ_CMP) {
1087                         ccb->ccb_h.status = status;
1088                         break;
1089                 }
1090
1091                 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO)
1092                         list = &lstate->accept_tios;
1093                 else if (abort_ccb->ccb_h.func_code == XPT_IMMED_NOTIFY)
1094                         list = &lstate->immed_notifies;
1095                 else
1096                         list = NULL;
1097
1098                 if (list != NULL) {
1099                         struct ccb_hdr *curelm;
1100                         int found;
1101
1102                         curelm = SLIST_FIRST(list);
1103                         found = 0;
1104                         if (curelm == &abort_ccb->ccb_h) {
1105                                 found = 1;
1106                                 SLIST_REMOVE_HEAD(list, sim_links.sle);
1107                         } else {
1108                                 while(curelm != NULL) {
1109                                         struct ccb_hdr *nextelm;
1110
1111                                         nextelm =
1112                                             SLIST_NEXT(curelm, sim_links.sle);
1113
1114                                         if (nextelm == &abort_ccb->ccb_h) {
1115                                                 found = 1;
1116                                                 SLIST_NEXT(curelm,
1117                                                            sim_links.sle) =
1118                                                     SLIST_NEXT(nextelm,
1119                                                                sim_links.sle);
1120                                                 break;
1121                                         }
1122                                         curelm = nextelm;
1123                                 }
1124                         }
1125
1126                         if (found) {
1127                                 abort_ccb->ccb_h.status = CAM_REQ_ABORTED;
1128                                 xpt_done(abort_ccb);
1129                                 ccb->ccb_h.status = CAM_REQ_CMP;
1130                         } else {
1131                                 xpt_print_path(abort_ccb->ccb_h.path);
1132                                 kprintf("Not found\n");
1133                                 ccb->ccb_h.status = CAM_PATH_INVALID;
1134                         }
1135                         break;
1136                 }
1137                 /* FALLTHROUGH */
1138         }
1139 #endif
1140         case XPT_SCSI_IO:
1141                 /* XXX Fully implement the hard ones */
1142                 ccb->ccb_h.status = CAM_UA_ABORT;
1143                 break;
1144         default:
1145                 ccb->ccb_h.status = CAM_REQ_INVALID;
1146                 break;
1147         }
1148         xpt_done(ccb);
1149 }
1150
1151 void
1152 ahd_send_async(struct ahd_softc *ahd, char channel, u_int target,
1153                 u_int lun, ac_code code, void *opt_arg)
1154 {
1155         struct  ccb_trans_settings cts;
1156         struct cam_path *path;
1157         void *arg;
1158         int error;
1159
1160         arg = NULL;
1161         error = ahd_create_path(ahd, channel, target, lun, &path);
1162
1163         if (error != CAM_REQ_CMP)
1164                 return;
1165
1166         switch (code) {
1167         case AC_TRANSFER_NEG:
1168         {
1169                 struct  ccb_trans_settings_scsi *scsi;
1170
1171                 cts.type = CTS_TYPE_CURRENT_SETTINGS;
1172                 scsi = &cts.proto_specific.scsi;
1173                 cts.ccb_h.path = path;
1174                 cts.ccb_h.target_id = target;
1175                 cts.ccb_h.target_lun = lun;
1176                 ahd_get_tran_settings(ahd, ahd->our_id, channel, &cts);
1177                 arg = &cts;
1178                 scsi->valid &= ~CTS_SCSI_VALID_TQ;
1179                 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
1180                 if (opt_arg == NULL)
1181                         break;
1182                 if (*((ahd_queue_alg *)opt_arg) == AHD_QUEUE_TAGGED)
1183                         scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB;
1184                 scsi->valid |= CTS_SCSI_VALID_TQ;
1185                 break;
1186         }
1187         case AC_SENT_BDR:
1188         case AC_BUS_RESET:
1189                 break;
1190         default:
1191                 panic("ahd_send_async: Unexpected async event");
1192         }
1193         xpt_async(code, path, arg);
1194         xpt_free_path(path);
1195 }
1196
1197 void
1198 ahd_platform_set_tags(struct ahd_softc *ahd,
1199                       struct ahd_devinfo *devinfo, int enable)
1200 {
1201 }
1202
1203 int
1204 ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg)
1205 {
1206         ahd->platform_data = kmalloc(sizeof(struct ahd_platform_data), M_DEVBUF,
1207                                     M_INTWAIT | M_ZERO);
1208         return (0);
1209 }
1210
1211 void
1212 ahd_platform_free(struct ahd_softc *ahd)
1213 {
1214         struct ahd_platform_data *pdata;
1215
1216         pdata = ahd->platform_data;
1217         if (pdata != NULL) {
1218                 if (pdata->regs[0] != NULL)
1219                         bus_release_resource(ahd->dev_softc,
1220                                              pdata->regs_res_type[0],
1221                                              pdata->regs_res_id[0],
1222                                              pdata->regs[0]);
1223
1224                 if (pdata->regs[1] != NULL)
1225                         bus_release_resource(ahd->dev_softc,
1226                                              pdata->regs_res_type[1],
1227                                              pdata->regs_res_id[1],
1228                                              pdata->regs[1]);
1229
1230                 if (pdata->irq != NULL)
1231                         bus_release_resource(ahd->dev_softc,
1232                                              pdata->irq_res_type,
1233                                              0, pdata->irq);
1234
1235                 if (pdata->sim != NULL) {
1236                         xpt_async(AC_LOST_DEVICE, pdata->path, NULL);
1237                         xpt_free_path(pdata->path);
1238                         xpt_bus_deregister(cam_sim_path(pdata->sim));
1239                         cam_sim_free(pdata->sim);
1240                 }
1241                 if (pdata->eh != NULL)
1242                         EVENTHANDLER_DEREGISTER(shutdown_post_sync, pdata->eh);
1243                 kfree(ahd->platform_data, M_DEVBUF);
1244         }
1245 }
1246
1247 int
1248 ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd)
1249 {
1250         /* We don't sort softcs under FreeBSD so report equal always */
1251         return (0);
1252 }
1253
1254 int
1255 ahd_detach(device_t dev)
1256 {
1257         struct ahd_softc *ahd;
1258
1259         device_printf(dev, "detaching device\n");
1260         ahd = device_get_softc(dev);
1261         ahd_lock(ahd);
1262         TAILQ_REMOVE(&ahd_tailq, ahd, links);
1263         ahd_intr_enable(ahd, FALSE);
1264         bus_teardown_intr(dev, ahd->platform_data->irq, ahd->platform_data->ih);
1265         ahd_unlock(ahd);
1266         ahd_free(ahd);
1267         return (0);
1268 }
1269
1270 #if 0
1271 static void
1272 ahd_dump_targcmd(struct target_cmd *cmd)
1273 {
1274         uint8_t *byte;
1275         uint8_t *last_byte;
1276         int i;
1277
1278         byte = &cmd->initiator_channel;
1279         /* Debugging info for received commands */
1280         last_byte = &cmd[1].initiator_channel;
1281
1282         i = 0;
1283         while (byte < last_byte) {
1284                 if (i == 0)
1285                         kprintf("\t");
1286                 kprintf("%#x", *byte++);
1287                 i++;
1288                 if (i == 8) {
1289                         kprintf("\n");
1290                         i = 0;
1291                 } else {
1292                         kprintf(", ");
1293                 }
1294         }
1295 }
1296 #endif
1297
1298 static int
1299 ahd_modevent(module_t mod, int type, void *data)
1300 {
1301         /* XXX Deal with busy status on unload. */
1302         /* XXX Deal with unknown events */
1303         return 0;
1304 }
1305
1306 static moduledata_t ahd_mod = {
1307         "ahd",
1308         ahd_modevent,
1309         NULL
1310 };
1311
1312 /********************************** DDB Hooks *********************************/
1313 #ifdef DDB
1314 static struct ahd_softc *ahd_ddb_softc;
1315 static int ahd_ddb_paused;
1316 static int ahd_ddb_paused_on_entry;
1317 DB_COMMAND(ahd_sunit, ahd_ddb_sunit)
1318 {
1319         struct ahd_softc *list_ahd;
1320
1321         ahd_ddb_softc = NULL;
1322         TAILQ_FOREACH(list_ahd, &ahd_tailq, links) {
1323                 if (list_ahd->unit == addr)
1324                         ahd_ddb_softc = list_ahd;
1325         }
1326         if (ahd_ddb_softc == NULL)
1327                 db_error("No matching softc found!\n");
1328 }
1329
1330 DB_COMMAND(ahd_pause, ahd_ddb_pause)
1331 {
1332         if (ahd_ddb_softc == NULL) {
1333                 db_error("Must set unit with ahd_sunit first!\n");
1334                 return;
1335         }
1336         if (ahd_ddb_paused == 0) {
1337                 ahd_ddb_paused++;
1338                 if (ahd_is_paused(ahd_ddb_softc)) {
1339                         ahd_ddb_paused_on_entry++;
1340                         return;
1341                 }
1342                 ahd_pause(ahd_ddb_softc);
1343         }
1344 }
1345
1346 DB_COMMAND(ahd_unpause, ahd_ddb_unpause)
1347 {
1348         if (ahd_ddb_softc == NULL) {
1349                 db_error("Must set unit with ahd_sunit first!\n");
1350                 return;
1351         }
1352         if (ahd_ddb_paused != 0) {
1353                 ahd_ddb_paused = 0;
1354                 if (ahd_ddb_paused_on_entry)
1355                         return;
1356                 ahd_unpause(ahd_ddb_softc);
1357         } else if (ahd_ddb_paused_on_entry != 0) {
1358                 /* Two unpauses to clear a paused on entry. */
1359                 ahd_ddb_paused_on_entry = 0;
1360                 ahd_unpause(ahd_ddb_softc);
1361         }
1362 }
1363
1364 DB_COMMAND(ahd_in, ahd_ddb_in)
1365 {
1366         int c;
1367         int size;
1368
1369         if (ahd_ddb_softc == NULL) {
1370                 db_error("Must set unit with ahd_sunit first!\n");
1371                 return;
1372         }
1373         if (have_addr == 0)
1374                 return;
1375
1376         size = 1;
1377         while ((c = *modif++) != '\0') {
1378                 switch (c) {
1379                 case 'b':
1380                         size = 1;
1381                         break;
1382                 case 'w':
1383                         size = 2;
1384                         break;
1385                 case 'l':
1386                         size = 4;
1387                 break;
1388                 }
1389         }
1390
1391         if (count <= 0)
1392                 count = 1;
1393         while (--count >= 0) {
1394                 db_printf("%04lx (M)%x: \t", (u_long)addr,
1395                           ahd_inb(ahd_ddb_softc, MODE_PTR));
1396                 switch (size) {
1397                 case 1:
1398                         db_printf("%02x\n", ahd_inb(ahd_ddb_softc, addr));
1399                         break;
1400                 case 2:
1401                         db_printf("%04x\n", ahd_inw(ahd_ddb_softc, addr));
1402                         break;
1403                 case 4:
1404                         db_printf("%08x\n", ahd_inl(ahd_ddb_softc, addr));
1405                         break;
1406                 }
1407         }
1408 }
1409
1410 DB_SET(ahd_out, ahd_ddb_out, db_cmd_set, CS_MORE, NULL)
1411 {
1412         db_expr_t old_value;
1413         db_expr_t new_value;
1414         int       size;
1415
1416         if (ahd_ddb_softc == NULL) {
1417                 db_error("Must set unit with ahd_sunit first!\n");
1418                 return;
1419         }
1420
1421         switch (modif[0]) {
1422         case '\0':
1423         case 'b':
1424                 size = 1;
1425                 break;
1426         case 'h':
1427                 size = 2;
1428                 break;
1429         case 'l':
1430                 size = 4;
1431                 break;
1432         default:
1433                 db_error("Unknown size\n");
1434                 return;
1435         }
1436
1437         while (db_expression(&new_value)) {
1438                 switch (size) {
1439                 default:
1440                 case 1:
1441                         old_value = ahd_inb(ahd_ddb_softc, addr);
1442                         ahd_outb(ahd_ddb_softc, addr, new_value);
1443                         break;
1444                 case 2:
1445                         old_value = ahd_inw(ahd_ddb_softc, addr);
1446                         ahd_outw(ahd_ddb_softc, addr, new_value);
1447                         break;
1448                 case 4:
1449                         old_value = ahd_inl(ahd_ddb_softc, addr);
1450                         ahd_outl(ahd_ddb_softc, addr, new_value);
1451                         break;
1452                 }
1453                 db_printf("%04lx (M)%x: \t0x%lx\t=\t0x%lx",
1454                           (u_long)addr, ahd_inb(ahd_ddb_softc, MODE_PTR),
1455                           (u_long)old_value, (u_long)new_value);
1456                 addr += size;
1457         }
1458         db_skip_to_eol();
1459 }
1460
1461 DB_COMMAND(ahd_dump, ahd_ddb_dump)
1462 {
1463         if (ahd_ddb_softc == NULL) {
1464                 db_error("Must set unit with ahd_sunit first!\n");
1465                 return;
1466         }
1467         ahd_dump_card_state(ahd_ddb_softc);
1468 }
1469
1470 #endif
1471
1472
1473 DECLARE_MODULE(ahd, ahd_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
1474 MODULE_DEPEND(ahd, cam, 1, 1, 1);
1475 MODULE_VERSION(ahd, 1);