The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/dev/aic7xxx/aic7xxx_osm.c

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    1 /*
    2  * Bus independent FreeBSD shim for the aic7xxx based Adaptec SCSI controllers
    3  *
    4  * Copyright (c) 1994-2001 Justin T. Gibbs.
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions, and the following disclaimer,
   12  *    without modification.
   13  * 2. The name of the author may not be used to endorse or promote products
   14  *    derived from this software without specific prior written permission.
   15  *
   16  * Alternatively, this software may be distributed under the terms of the
   17  * GNU Public License ("GPL").
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   22  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
   23  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   29  * SUCH DAMAGE.
   30  *
   31  * $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/aic7xxx_osm.c#20 $
   32  */
   33 
   34 #include <sys/cdefs.h>
   35 __FBSDID("$FreeBSD: releng/5.3/sys/dev/aic7xxx/aic7xxx_osm.c 133911 2004-08-17 00:14:31Z gibbs $");
   36 
   37 #include <dev/aic7xxx/aic7xxx_osm.h>
   38 #include <dev/aic7xxx/aic7xxx_inline.h>
   39 
   40 #include <sys/kthread.h>
   41 
   42 #ifndef AHC_TMODE_ENABLE
   43 #define AHC_TMODE_ENABLE 0
   44 #endif
   45 
   46 #include <dev/aic7xxx/aic_osm_lib.c>
   47 
   48 #define ccb_scb_ptr spriv_ptr0
   49 
   50 devclass_t ahc_devclass;
   51 
   52 #if UNUSED
   53 static void     ahc_dump_targcmd(struct target_cmd *cmd);
   54 #endif
   55 static int      ahc_modevent(module_t mod, int type, void *data);
   56 static void     ahc_action(struct cam_sim *sim, union ccb *ccb);
   57 static void     ahc_get_tran_settings(struct ahc_softc *ahc,
   58                                       int our_id, char channel,
   59                                       struct ccb_trans_settings *cts);
   60 static void     ahc_async(void *callback_arg, uint32_t code,
   61                           struct cam_path *path, void *arg);
   62 static void     ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs,
   63                                 int nsegments, int error);
   64 static void     ahc_poll(struct cam_sim *sim);
   65 static void     ahc_setup_data(struct ahc_softc *ahc, struct cam_sim *sim,
   66                                struct ccb_scsiio *csio, struct scb *scb);
   67 static void     ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim,
   68                               union ccb *ccb);
   69 static int      ahc_create_path(struct ahc_softc *ahc,
   70                                 char channel, u_int target, u_int lun,
   71                                 struct cam_path **path);
   72 
   73 
   74 static int
   75 ahc_create_path(struct ahc_softc *ahc, char channel, u_int target,
   76                 u_int lun, struct cam_path **path)
   77 {
   78         path_id_t path_id;
   79 
   80         if (channel == 'B')
   81                 path_id = cam_sim_path(ahc->platform_data->sim_b);
   82         else 
   83                 path_id = cam_sim_path(ahc->platform_data->sim);
   84 
   85         return (xpt_create_path(path, /*periph*/NULL,
   86                                 path_id, target, lun));
   87 }
   88 
   89 int
   90 ahc_map_int(struct ahc_softc *ahc)
   91 {
   92         int error;
   93         int zero;
   94         int shareable;
   95 
   96         zero = 0;
   97         shareable = (ahc->flags & AHC_EDGE_INTERRUPT) ? 0: RF_SHAREABLE;
   98         ahc->platform_data->irq =
   99             bus_alloc_resource_any(ahc->dev_softc, SYS_RES_IRQ, &zero,
  100                                    RF_ACTIVE | shareable);
  101         if (ahc->platform_data->irq == NULL) {
  102                 device_printf(ahc->dev_softc,
  103                               "bus_alloc_resource() failed to allocate IRQ\n");
  104                 return (ENOMEM);
  105         }
  106         ahc->platform_data->irq_res_type = SYS_RES_IRQ;
  107 
  108         /* Hook up our interrupt handler */
  109         error = bus_setup_intr(ahc->dev_softc, ahc->platform_data->irq,
  110                                INTR_TYPE_CAM, ahc_platform_intr, ahc,
  111                                &ahc->platform_data->ih);
  112 
  113         if (error != 0)
  114                 device_printf(ahc->dev_softc, "bus_setup_intr() failed: %d\n",
  115                               error);
  116         return (error);
  117 }
  118 
  119 int
  120 aic7770_map_registers(struct ahc_softc *ahc, u_int unused_ioport_arg)
  121 {
  122         struct  resource *regs;
  123         int     rid;
  124 
  125         rid = 0;
  126         regs = bus_alloc_resource_any(ahc->dev_softc, SYS_RES_IOPORT, &rid,
  127                                       RF_ACTIVE);
  128         if (regs == NULL) {
  129                 device_printf(ahc->dev_softc, "Unable to map I/O space?!\n");
  130                 return ENOMEM;
  131         }
  132         ahc->platform_data->regs_res_type = SYS_RES_IOPORT;
  133         ahc->platform_data->regs_res_id = rid,
  134         ahc->platform_data->regs = regs;
  135         ahc->tag = rman_get_bustag(regs);
  136         ahc->bsh = rman_get_bushandle(regs);
  137         return (0);
  138 }
  139 
  140 /*
  141  * Attach all the sub-devices we can find
  142  */
  143 int
  144 ahc_attach(struct ahc_softc *ahc)
  145 {
  146         char   ahc_info[256];
  147         struct ccb_setasync csa;
  148         struct cam_devq *devq;
  149         int bus_id;
  150         int bus_id2;
  151         struct cam_sim *sim;
  152         struct cam_sim *sim2;
  153         struct cam_path *path;
  154         struct cam_path *path2;
  155         long s;
  156         int count;
  157 
  158         count = 0;
  159         sim = NULL;
  160         sim2 = NULL;
  161 
  162         /*
  163          * Create a thread to perform all recovery.
  164          */
  165         if (ahc_spawn_recovery_thread(ahc) != 0)
  166                 goto fail;
  167 
  168         ahc_controller_info(ahc, ahc_info);
  169         printf("%s\n", ahc_info);
  170         ahc_lock(ahc, &s);
  171 
  172         /*
  173          * Attach secondary channel first if the user has
  174          * declared it the primary channel.
  175          */
  176         if ((ahc->features & AHC_TWIN) != 0
  177          && (ahc->flags & AHC_PRIMARY_CHANNEL) != 0) {
  178                 bus_id = 1;
  179                 bus_id2 = 0;
  180         } else {
  181                 bus_id = 0;
  182                 bus_id2 = 1;
  183         }
  184 
  185         /*
  186          * Create the device queue for our SIM(s).
  187          */
  188         devq = cam_simq_alloc(AHC_MAX_QUEUE);
  189         if (devq == NULL)
  190                 goto fail;
  191 
  192         /*
  193          * Construct our first channel SIM entry
  194          */
  195         sim = cam_sim_alloc(ahc_action, ahc_poll, "ahc", ahc,
  196                             device_get_unit(ahc->dev_softc),
  197                             1, AHC_MAX_QUEUE, devq);
  198         if (sim == NULL) {
  199                 cam_simq_free(devq);
  200                 goto fail;
  201         }
  202 
  203         if (xpt_bus_register(sim, bus_id) != CAM_SUCCESS) {
  204                 cam_sim_free(sim, /*free_devq*/TRUE);
  205                 sim = NULL;
  206                 goto fail;
  207         }
  208         
  209         if (xpt_create_path(&path, /*periph*/NULL,
  210                             cam_sim_path(sim), CAM_TARGET_WILDCARD,
  211                             CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
  212                 xpt_bus_deregister(cam_sim_path(sim));
  213                 cam_sim_free(sim, /*free_devq*/TRUE);
  214                 sim = NULL;
  215                 goto fail;
  216         }
  217                 
  218         xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
  219         csa.ccb_h.func_code = XPT_SASYNC_CB;
  220         csa.event_enable = AC_LOST_DEVICE;
  221         csa.callback = ahc_async;
  222         csa.callback_arg = sim;
  223         xpt_action((union ccb *)&csa);
  224         count++;
  225 
  226         if (ahc->features & AHC_TWIN) {
  227                 sim2 = cam_sim_alloc(ahc_action, ahc_poll, "ahc",
  228                                     ahc, device_get_unit(ahc->dev_softc), 1,
  229                                     AHC_MAX_QUEUE, devq);
  230 
  231                 if (sim2 == NULL) {
  232                         printf("ahc_attach: Unable to attach second "
  233                                "bus due to resource shortage");
  234                         goto fail;
  235                 }
  236                 
  237                 if (xpt_bus_register(sim2, bus_id2) != CAM_SUCCESS) {
  238                         printf("ahc_attach: Unable to attach second "
  239                                "bus due to resource shortage");
  240                         /*
  241                          * We do not want to destroy the device queue
  242                          * because the first bus is using it.
  243                          */
  244                         cam_sim_free(sim2, /*free_devq*/FALSE);
  245                         goto fail;
  246                 }
  247 
  248                 if (xpt_create_path(&path2, /*periph*/NULL,
  249                                     cam_sim_path(sim2),
  250                                     CAM_TARGET_WILDCARD,
  251                                     CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
  252                         xpt_bus_deregister(cam_sim_path(sim2));
  253                         cam_sim_free(sim2, /*free_devq*/FALSE);
  254                         sim2 = NULL;
  255                         goto fail;
  256                 }
  257                 xpt_setup_ccb(&csa.ccb_h, path2, /*priority*/5);
  258                 csa.ccb_h.func_code = XPT_SASYNC_CB;
  259                 csa.event_enable = AC_LOST_DEVICE;
  260                 csa.callback = ahc_async;
  261                 csa.callback_arg = sim2;
  262                 xpt_action((union ccb *)&csa);
  263                 count++;
  264         }
  265 
  266 fail:
  267         if ((ahc->features & AHC_TWIN) != 0
  268          && (ahc->flags & AHC_PRIMARY_CHANNEL) != 0) {
  269                 ahc->platform_data->sim_b = sim;
  270                 ahc->platform_data->path_b = path;
  271                 ahc->platform_data->sim = sim2;
  272                 ahc->platform_data->path = path2;
  273         } else {
  274                 ahc->platform_data->sim = sim;
  275                 ahc->platform_data->path = path;
  276                 ahc->platform_data->sim_b = sim2;
  277                 ahc->platform_data->path_b = path2;
  278         }
  279 
  280         if (count != 0) {
  281                 /* We have to wait until after any system dumps... */
  282                 ahc->platform_data->eh =
  283                     EVENTHANDLER_REGISTER(shutdown_final, ahc_shutdown,
  284                                           ahc, SHUTDOWN_PRI_DEFAULT);
  285                 ahc_intr_enable(ahc, TRUE);
  286         }
  287 
  288         ahc_unlock(ahc, &s);
  289         return (count);
  290 }
  291 
  292 /*
  293  * Catch an interrupt from the adapter
  294  */
  295 void
  296 ahc_platform_intr(void *arg)
  297 {
  298         struct  ahc_softc *ahc;
  299 
  300         ahc = (struct ahc_softc *)arg; 
  301         ahc_intr(ahc);
  302 }
  303 
  304 /*
  305  * We have an scb which has been processed by the
  306  * adaptor, now we look to see how the operation
  307  * went.
  308  */
  309 void
  310 ahc_done(struct ahc_softc *ahc, struct scb *scb)
  311 {
  312         union ccb *ccb;
  313 
  314         CAM_DEBUG(scb->io_ctx->ccb_h.path, CAM_DEBUG_TRACE,
  315                   ("ahc_done - scb %d\n", scb->hscb->tag));
  316 
  317         ccb = scb->io_ctx;
  318         LIST_REMOVE(scb, pending_links);
  319         if ((scb->flags & SCB_TIMEDOUT) != 0)
  320                 LIST_REMOVE(scb, timedout_links);
  321         if ((scb->flags & SCB_UNTAGGEDQ) != 0) {
  322                 struct scb_tailq *untagged_q;
  323                 int target_offset;
  324 
  325                 target_offset = SCB_GET_TARGET_OFFSET(ahc, scb);
  326                 untagged_q = &ahc->untagged_queues[target_offset];
  327                 TAILQ_REMOVE(untagged_q, scb, links.tqe);
  328                 scb->flags &= ~SCB_UNTAGGEDQ;
  329                 ahc_run_untagged_queue(ahc, untagged_q);
  330         }
  331 
  332         untimeout(ahc_platform_timeout, (caddr_t)scb, ccb->ccb_h.timeout_ch);
  333 
  334         if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
  335                 bus_dmasync_op_t op;
  336 
  337                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
  338                         op = BUS_DMASYNC_POSTREAD;
  339                 else
  340                         op = BUS_DMASYNC_POSTWRITE;
  341                 bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op);
  342                 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap);
  343         }
  344 
  345         if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
  346                 struct cam_path *ccb_path;
  347 
  348                 /*
  349                  * If we have finally disconnected, clean up our
  350                  * pending device state.
  351                  * XXX - There may be error states that cause where
  352                  *       we will remain connected.
  353                  */
  354                 ccb_path = ccb->ccb_h.path;
  355                 if (ahc->pending_device != NULL
  356                  && xpt_path_comp(ahc->pending_device->path, ccb_path) == 0) {
  357 
  358                         if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
  359                                 ahc->pending_device = NULL;
  360                         } else {
  361                                 if (bootverbose) {
  362                                         xpt_print_path(ccb->ccb_h.path);
  363                                         printf("Still connected\n");
  364                                 }
  365                                 aic_freeze_ccb(ccb);
  366                         }
  367                 }
  368 
  369                 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG)
  370                         ccb->ccb_h.status |= CAM_REQ_CMP;
  371                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
  372                 ahc_free_scb(ahc, scb);
  373                 xpt_done(ccb);
  374                 return;
  375         }
  376 
  377         /*
  378          * If the recovery SCB completes, we have to be
  379          * out of our timeout.
  380          */
  381         if ((scb->flags & SCB_RECOVERY_SCB) != 0) {
  382                 struct  scb *list_scb;
  383 
  384                 ahc->scb_data->recovery_scbs--;
  385 
  386                 if (aic_get_transaction_status(scb) == CAM_BDR_SENT
  387                  || aic_get_transaction_status(scb) == CAM_REQ_ABORTED)
  388                         aic_set_transaction_status(scb, CAM_CMD_TIMEOUT);
  389 
  390                 if (ahc->scb_data->recovery_scbs == 0) {
  391                         /*
  392                          * All recovery actions have completed successfully,
  393                          * so reinstate the timeouts for all other pending
  394                          * commands.
  395                          */
  396                         LIST_FOREACH(list_scb, &ahc->pending_scbs,
  397                                      pending_links) {
  398 
  399                                 aic_scb_timer_reset(scb, aic_get_timeout(scb));
  400                         }
  401 
  402                         ahc_print_path(ahc, scb);
  403                         printf("no longer in timeout, status = %x\n",
  404                                ccb->ccb_h.status);
  405                 }
  406         }
  407 
  408         /* Don't clobber any existing error state */
  409         if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) {
  410                 ccb->ccb_h.status |= CAM_REQ_CMP;
  411         } else if ((scb->flags & SCB_SENSE) != 0) {
  412                 /*
  413                  * We performed autosense retrieval.
  414                  *
  415                  * Zero any sense not transferred by the
  416                  * device.  The SCSI spec mandates that any
  417                  * untransfered data should be assumed to be
  418                  * zero.  Complete the 'bounce' of sense information
  419                  * through buffers accessible via bus-space by
  420                  * copying it into the clients csio.
  421                  */
  422                 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data));
  423                 memcpy(&ccb->csio.sense_data,
  424                        ahc_get_sense_buf(ahc, scb),
  425                        (aic_le32toh(scb->sg_list->len) & AHC_SG_LEN_MASK)
  426                        - ccb->csio.sense_resid);
  427                 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID;
  428         }
  429         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
  430         ahc_free_scb(ahc, scb);
  431         xpt_done(ccb);
  432 }
  433 
  434 static void
  435 ahc_action(struct cam_sim *sim, union ccb *ccb)
  436 {
  437         struct  ahc_softc *ahc;
  438         struct  ahc_tmode_lstate *lstate;
  439         u_int   target_id;
  440         u_int   our_id;
  441         long    s;
  442 
  443         CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahc_action\n"));
  444         
  445         ahc = (struct ahc_softc *)cam_sim_softc(sim);
  446 
  447         target_id = ccb->ccb_h.target_id;
  448         our_id = SIM_SCSI_ID(ahc, sim);
  449         
  450         switch (ccb->ccb_h.func_code) {
  451         /* Common cases first */
  452         case XPT_ACCEPT_TARGET_IO:      /* Accept Host Target Mode CDB */
  453         case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/
  454         {
  455                 struct     ahc_tmode_tstate *tstate;
  456                 cam_status status;
  457 
  458                 status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate,
  459                                              &lstate, TRUE);
  460 
  461                 if (status != CAM_REQ_CMP) {
  462                         if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
  463                                 /* Response from the black hole device */
  464                                 tstate = NULL;
  465                                 lstate = ahc->black_hole;
  466                         } else {
  467                                 ccb->ccb_h.status = status;
  468                                 xpt_done(ccb);
  469                                 break;
  470                         }
  471                 }
  472                 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
  473 
  474                         ahc_lock(ahc, &s);
  475                         SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h,
  476                                           sim_links.sle);
  477                         ccb->ccb_h.status = CAM_REQ_INPROG;
  478                         if ((ahc->flags & AHC_TQINFIFO_BLOCKED) != 0)
  479                                 ahc_run_tqinfifo(ahc, /*paused*/FALSE);
  480                         ahc_unlock(ahc, &s);
  481                         break;
  482                 }
  483 
  484                 /*
  485                  * The target_id represents the target we attempt to
  486                  * select.  In target mode, this is the initiator of
  487                  * the original command.
  488                  */
  489                 our_id = target_id;
  490                 target_id = ccb->csio.init_id;
  491                 /* FALLTHROUGH */
  492         }
  493         case XPT_SCSI_IO:       /* Execute the requested I/O operation */
  494         case XPT_RESET_DEV:     /* Bus Device Reset the specified SCSI device */
  495         {
  496                 struct  scb *scb;
  497                 struct  hardware_scb *hscb;     
  498 
  499                 if ((ahc->flags & AHC_INITIATORROLE) == 0
  500                  && (ccb->ccb_h.func_code == XPT_SCSI_IO
  501                   || ccb->ccb_h.func_code == XPT_RESET_DEV)) {
  502                         ccb->ccb_h.status = CAM_PROVIDE_FAIL;
  503                         xpt_done(ccb);
  504                         return;
  505                 }
  506 
  507                 /*
  508                  * get an scb to use.
  509                  */
  510                 ahc_lock(ahc, &s);
  511                 if ((scb = ahc_get_scb(ahc)) == NULL) {
  512         
  513                         xpt_freeze_simq(sim, /*count*/1);
  514                         ahc->flags |= AHC_RESOURCE_SHORTAGE;
  515                         ahc_unlock(ahc, &s);
  516                         ccb->ccb_h.status = CAM_REQUEUE_REQ;
  517                         xpt_done(ccb);
  518                         return;
  519                 }
  520                 ahc_unlock(ahc, &s);
  521                 
  522                 hscb = scb->hscb;
  523                 
  524                 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE,
  525                           ("start scb(%p)\n", scb));
  526                 scb->io_ctx = ccb;
  527                 /*
  528                  * So we can find the SCB when an abort is requested
  529                  */
  530                 ccb->ccb_h.ccb_scb_ptr = scb;
  531 
  532                 /*
  533                  * Put all the arguments for the xfer in the scb
  534                  */
  535                 hscb->control = 0;
  536                 hscb->scsiid = BUILD_SCSIID(ahc, sim, target_id, our_id);
  537                 hscb->lun = ccb->ccb_h.target_lun;
  538                 if (ccb->ccb_h.func_code == XPT_RESET_DEV) {
  539                         hscb->cdb_len = 0;
  540                         scb->flags |= SCB_DEVICE_RESET;
  541                         hscb->control |= MK_MESSAGE;
  542                         ahc_execute_scb(scb, NULL, 0, 0);
  543                 } else {
  544                         if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
  545                                 struct target_data *tdata;
  546 
  547                                 tdata = &hscb->shared_data.tdata;
  548                                 if (ahc->pending_device == lstate)
  549                                         scb->flags |= SCB_TARGET_IMMEDIATE;
  550                                 hscb->control |= TARGET_SCB;
  551                                 scb->flags |= SCB_TARGET_SCB;
  552                                 tdata->target_phases = 0;
  553                                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
  554                                         tdata->target_phases |= SPHASE_PENDING;
  555                                         tdata->scsi_status =
  556                                             ccb->csio.scsi_status;
  557                                 }
  558                                 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT)
  559                                         tdata->target_phases |= NO_DISCONNECT;
  560 
  561                                 tdata->initiator_tag = ccb->csio.tag_id;
  562                         }
  563                         if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID)
  564                                 hscb->control |= ccb->csio.tag_action;
  565                         
  566                         ahc_setup_data(ahc, sim, &ccb->csio, scb);
  567                 }
  568                 break;
  569         }
  570         case XPT_NOTIFY_ACK:
  571         case XPT_IMMED_NOTIFY:
  572         {
  573                 struct     ahc_tmode_tstate *tstate;
  574                 struct     ahc_tmode_lstate *lstate;
  575                 cam_status status;
  576 
  577                 status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate,
  578                                              &lstate, TRUE);
  579 
  580                 if (status != CAM_REQ_CMP) {
  581                         ccb->ccb_h.status = status;
  582                         xpt_done(ccb);
  583                         break;
  584                 }
  585                 SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h,
  586                                   sim_links.sle);
  587                 ccb->ccb_h.status = CAM_REQ_INPROG;
  588                 ahc_send_lstate_events(ahc, lstate);
  589                 break;
  590         }
  591         case XPT_EN_LUN:                /* Enable LUN as a target */
  592                 ahc_handle_en_lun(ahc, sim, ccb);
  593                 xpt_done(ccb);
  594                 break;
  595         case XPT_ABORT:                 /* Abort the specified CCB */
  596         {
  597                 ahc_abort_ccb(ahc, sim, ccb);
  598                 break;
  599         }
  600         case XPT_SET_TRAN_SETTINGS:
  601         {
  602 #ifdef AHC_NEW_TRAN_SETTINGS
  603                 struct  ahc_devinfo devinfo;
  604                 struct  ccb_trans_settings *cts;
  605                 struct  ccb_trans_settings_scsi *scsi;
  606                 struct  ccb_trans_settings_spi *spi;
  607                 struct  ahc_initiator_tinfo *tinfo;
  608                 struct  ahc_tmode_tstate *tstate;
  609                 uint16_t *discenable;
  610                 uint16_t *tagenable;
  611                 u_int   update_type;
  612 
  613                 cts = &ccb->cts;
  614                 scsi = &cts->proto_specific.scsi;
  615                 spi = &cts->xport_specific.spi;
  616                 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim),
  617                                     cts->ccb_h.target_id,
  618                                     cts->ccb_h.target_lun,
  619                                     SIM_CHANNEL(ahc, sim),
  620                                     ROLE_UNKNOWN);
  621                 tinfo = ahc_fetch_transinfo(ahc, devinfo.channel,
  622                                             devinfo.our_scsiid,
  623                                             devinfo.target, &tstate);
  624                 update_type = 0;
  625                 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
  626                         update_type |= AHC_TRANS_GOAL;
  627                         discenable = &tstate->discenable;
  628                         tagenable = &tstate->tagenable;
  629                         tinfo->curr.protocol_version =
  630                             cts->protocol_version;
  631                         tinfo->curr.transport_version =
  632                             cts->transport_version;
  633                         tinfo->goal.protocol_version =
  634                             cts->protocol_version;
  635                         tinfo->goal.transport_version =
  636                             cts->transport_version;
  637                 } else if (cts->type == CTS_TYPE_USER_SETTINGS) {
  638                         update_type |= AHC_TRANS_USER;
  639                         discenable = &ahc->user_discenable;
  640                         tagenable = &ahc->user_tagenable;
  641                         tinfo->user.protocol_version =
  642                             cts->protocol_version;
  643                         tinfo->user.transport_version =
  644                             cts->transport_version;
  645                 } else {
  646                         ccb->ccb_h.status = CAM_REQ_INVALID;
  647                         xpt_done(ccb);
  648                         break;
  649                 }
  650                 
  651                 ahc_lock(ahc, &s);
  652 
  653                 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
  654                         if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0)
  655                                 *discenable |= devinfo.target_mask;
  656                         else
  657                                 *discenable &= ~devinfo.target_mask;
  658                 }
  659                 
  660                 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
  661                         if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0)
  662                                 *tagenable |= devinfo.target_mask;
  663                         else
  664                                 *tagenable &= ~devinfo.target_mask;
  665                 }       
  666 
  667                 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
  668                         ahc_validate_width(ahc, /*tinfo limit*/NULL,
  669                                            &spi->bus_width, ROLE_UNKNOWN);
  670                         ahc_set_width(ahc, &devinfo, spi->bus_width,
  671                                       update_type, /*paused*/FALSE);
  672                 }
  673 
  674                 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) {
  675                         if (update_type == AHC_TRANS_USER)
  676                                 spi->ppr_options = tinfo->user.ppr_options;
  677                         else
  678                                 spi->ppr_options = tinfo->goal.ppr_options;
  679                 }
  680 
  681                 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) {
  682                         if (update_type == AHC_TRANS_USER)
  683                                 spi->sync_offset = tinfo->user.offset;
  684                         else
  685                                 spi->sync_offset = tinfo->goal.offset;
  686                 }
  687 
  688                 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) {
  689                         if (update_type == AHC_TRANS_USER)
  690                                 spi->sync_period = tinfo->user.period;
  691                         else
  692                                 spi->sync_period = tinfo->goal.period;
  693                 }
  694 
  695                 if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0)
  696                  || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) {
  697                         struct ahc_syncrate *syncrate;
  698                         u_int maxsync;
  699 
  700                         if ((ahc->features & AHC_ULTRA2) != 0)
  701                                 maxsync = AHC_SYNCRATE_DT;
  702                         else if ((ahc->features & AHC_ULTRA) != 0)
  703                                 maxsync = AHC_SYNCRATE_ULTRA;
  704                         else
  705                                 maxsync = AHC_SYNCRATE_FAST;
  706 
  707                         if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT)
  708                                 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ;
  709 
  710                         syncrate = ahc_find_syncrate(ahc, &spi->sync_period,
  711                                                      &spi->ppr_options,
  712                                                      maxsync);
  713                         ahc_validate_offset(ahc, /*tinfo limit*/NULL,
  714                                             syncrate, &spi->sync_offset,
  715                                             spi->bus_width, ROLE_UNKNOWN);
  716 
  717                         /* We use a period of 0 to represent async */
  718                         if (spi->sync_offset == 0) {
  719                                 spi->sync_period = 0;
  720                                 spi->ppr_options = 0;
  721                         }
  722 
  723                         ahc_set_syncrate(ahc, &devinfo, syncrate,
  724                                          spi->sync_period, spi->sync_offset,
  725                                          spi->ppr_options, update_type,
  726                                          /*paused*/FALSE);
  727                 }
  728                 ahc_unlock(ahc, &s);
  729                 ccb->ccb_h.status = CAM_REQ_CMP;
  730                 xpt_done(ccb);
  731 #else
  732                 struct    ahc_devinfo devinfo;
  733                 struct    ccb_trans_settings *cts;
  734                 struct    ahc_initiator_tinfo *tinfo;
  735                 struct    ahc_tmode_tstate *tstate;
  736                 uint16_t *discenable;
  737                 uint16_t *tagenable;
  738                 u_int     update_type;
  739                 long      s;
  740 
  741                 cts = &ccb->cts;
  742                 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim),
  743                                     cts->ccb_h.target_id,
  744                                     cts->ccb_h.target_lun,
  745                                     SIM_CHANNEL(ahc, sim),
  746                                     ROLE_UNKNOWN);
  747                 tinfo = ahc_fetch_transinfo(ahc, devinfo.channel,
  748                                             devinfo.our_scsiid,
  749                                             devinfo.target, &tstate);
  750                 update_type = 0;
  751                 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0) {
  752                         update_type |= AHC_TRANS_GOAL;
  753                         discenable = &tstate->discenable;
  754                         tagenable = &tstate->tagenable;
  755                 } else if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) {
  756                         update_type |= AHC_TRANS_USER;
  757                         discenable = &ahc->user_discenable;
  758                         tagenable = &ahc->user_tagenable;
  759                 } else {
  760                         ccb->ccb_h.status = CAM_REQ_INVALID;
  761                         xpt_done(ccb);
  762                         break;
  763                 }
  764                 
  765                 ahc_lock(ahc, &s);
  766 
  767                 if ((cts->valid & CCB_TRANS_DISC_VALID) != 0) {
  768                         if ((cts->flags & CCB_TRANS_DISC_ENB) != 0)
  769                                 *discenable |= devinfo.target_mask;
  770                         else
  771                                 *discenable &= ~devinfo.target_mask;
  772                 }
  773                 
  774                 if ((cts->valid & CCB_TRANS_TQ_VALID) != 0) {
  775                         if ((cts->flags & CCB_TRANS_TAG_ENB) != 0)
  776                                 *tagenable |= devinfo.target_mask;
  777                         else
  778                                 *tagenable &= ~devinfo.target_mask;
  779                 }       
  780 
  781                 if ((cts->valid & CCB_TRANS_BUS_WIDTH_VALID) != 0) {
  782                         ahc_validate_width(ahc, /*tinfo limit*/NULL,
  783                                            &cts->bus_width, ROLE_UNKNOWN);
  784                         ahc_set_width(ahc, &devinfo, cts->bus_width,
  785                                       update_type, /*paused*/FALSE);
  786                 }
  787 
  788                 if ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) == 0) {
  789                         if (update_type == AHC_TRANS_USER)
  790                                 cts->sync_offset = tinfo->user.offset;
  791                         else
  792                                 cts->sync_offset = tinfo->goal.offset;
  793                 }
  794 
  795                 if ((cts->valid & CCB_TRANS_SYNC_RATE_VALID) == 0) {
  796                         if (update_type == AHC_TRANS_USER)
  797                                 cts->sync_period = tinfo->user.period;
  798                         else
  799                                 cts->sync_period = tinfo->goal.period;
  800                 }
  801 
  802                 if (((cts->valid & CCB_TRANS_SYNC_RATE_VALID) != 0)
  803                  || ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) != 0)) {
  804                         struct ahc_syncrate *syncrate;
  805                         u_int ppr_options;
  806                         u_int maxsync;
  807 
  808                         if ((ahc->features & AHC_ULTRA2) != 0)
  809                                 maxsync = AHC_SYNCRATE_DT;
  810                         else if ((ahc->features & AHC_ULTRA) != 0)
  811                                 maxsync = AHC_SYNCRATE_ULTRA;
  812                         else
  813                                 maxsync = AHC_SYNCRATE_FAST;
  814 
  815                         ppr_options = 0;
  816                         if (cts->sync_period <= 9
  817                          && cts->bus_width == MSG_EXT_WDTR_BUS_16_BIT)
  818                                 ppr_options = MSG_EXT_PPR_DT_REQ;
  819 
  820                         syncrate = ahc_find_syncrate(ahc, &cts->sync_period,
  821                                                      &ppr_options,
  822                                                      maxsync);
  823                         ahc_validate_offset(ahc, /*tinfo limit*/NULL,
  824                                             syncrate, &cts->sync_offset,
  825                                             MSG_EXT_WDTR_BUS_8_BIT,
  826                                             ROLE_UNKNOWN);
  827 
  828                         /* We use a period of 0 to represent async */
  829                         if (cts->sync_offset == 0) {
  830                                 cts->sync_period = 0;
  831                                 ppr_options = 0;
  832                         }
  833 
  834                         if (ppr_options == MSG_EXT_PPR_DT_REQ
  835                          && tinfo->user.transport_version >= 3) {
  836                                 tinfo->goal.transport_version =
  837                                     tinfo->user.transport_version;
  838                                 tinfo->curr.transport_version =
  839                                     tinfo->user.transport_version;
  840                         }
  841                         
  842                         ahc_set_syncrate(ahc, &devinfo, syncrate,
  843                                          cts->sync_period, cts->sync_offset,
  844                                          ppr_options, update_type,
  845                                          /*paused*/FALSE);
  846                 }
  847                 ahc_unlock(ahc, &s);
  848                 ccb->ccb_h.status = CAM_REQ_CMP;
  849                 xpt_done(ccb);
  850 #endif
  851                 break;
  852         }
  853         case XPT_GET_TRAN_SETTINGS:
  854         /* Get default/user set transfer settings for the target */
  855         {
  856 
  857                 ahc_lock(ahc, &s);
  858                 ahc_get_tran_settings(ahc, SIM_SCSI_ID(ahc, sim),
  859                                       SIM_CHANNEL(ahc, sim), &ccb->cts);
  860                 ahc_unlock(ahc, &s);
  861                 xpt_done(ccb);
  862                 break;
  863         }
  864         case XPT_CALC_GEOMETRY:
  865         {
  866                 int extended;
  867 
  868                 extended = SIM_IS_SCSIBUS_B(ahc, sim)
  869                          ? ahc->flags & AHC_EXTENDED_TRANS_B
  870                          : ahc->flags & AHC_EXTENDED_TRANS_A;
  871                 aic_calc_geometry(&ccb->ccg, extended);
  872                 xpt_done(ccb);
  873                 break;
  874         }
  875         case XPT_RESET_BUS:             /* Reset the specified SCSI bus */
  876         {
  877                 int  found;
  878                 
  879                 ahc_lock(ahc, &s);
  880                 found = ahc_reset_channel(ahc, SIM_CHANNEL(ahc, sim),
  881                                           /*initiate reset*/TRUE);
  882                 ahc_unlock(ahc, &s);
  883                 if (bootverbose) {
  884                         xpt_print_path(SIM_PATH(ahc, sim));
  885                         printf("SCSI bus reset delivered. "
  886                                "%d SCBs aborted.\n", found);
  887                 }
  888                 ccb->ccb_h.status = CAM_REQ_CMP;
  889                 xpt_done(ccb);
  890                 break;
  891         }
  892         case XPT_TERM_IO:               /* Terminate the I/O process */
  893                 /* XXX Implement */
  894                 ccb->ccb_h.status = CAM_REQ_INVALID;
  895                 xpt_done(ccb);
  896                 break;
  897         case XPT_PATH_INQ:              /* Path routing inquiry */
  898         {
  899                 struct ccb_pathinq *cpi = &ccb->cpi;
  900                 
  901                 cpi->version_num = 1; /* XXX??? */
  902                 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE;
  903                 if ((ahc->features & AHC_WIDE) != 0)
  904                         cpi->hba_inquiry |= PI_WIDE_16;
  905                 if ((ahc->features & AHC_TARGETMODE) != 0) {
  906                         cpi->target_sprt = PIT_PROCESSOR
  907                                          | PIT_DISCONNECT
  908                                          | PIT_TERM_IO;
  909                 } else {
  910                         cpi->target_sprt = 0;
  911                 }
  912                 cpi->hba_misc = 0;
  913                 cpi->hba_eng_cnt = 0;
  914                 cpi->max_target = (ahc->features & AHC_WIDE) ? 15 : 7;
  915                 cpi->max_lun = AHC_NUM_LUNS - 1;
  916                 if (SIM_IS_SCSIBUS_B(ahc, sim)) {
  917                         cpi->initiator_id = ahc->our_id_b;
  918                         if ((ahc->flags & AHC_RESET_BUS_B) == 0)
  919                                 cpi->hba_misc |= PIM_NOBUSRESET;
  920                 } else {
  921                         cpi->initiator_id = ahc->our_id;
  922                         if ((ahc->flags & AHC_RESET_BUS_A) == 0)
  923                                 cpi->hba_misc |= PIM_NOBUSRESET;
  924                 }
  925                 cpi->bus_id = cam_sim_bus(sim);
  926                 cpi->base_transfer_speed = 3300;
  927                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
  928                 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
  929                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
  930                 cpi->unit_number = cam_sim_unit(sim);
  931 #ifdef AHC_NEW_TRAN_SETTINGS
  932                 cpi->protocol = PROTO_SCSI;
  933                 cpi->protocol_version = SCSI_REV_2;
  934                 cpi->transport = XPORT_SPI;
  935                 cpi->transport_version = 2;
  936                 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_ST;
  937                 if ((ahc->features & AHC_DT) != 0) {
  938                         cpi->transport_version = 3;
  939                         cpi->xport_specific.spi.ppr_options =
  940                             SID_SPI_CLOCK_DT_ST;
  941                 }
  942 #endif
  943                 cpi->ccb_h.status = CAM_REQ_CMP;
  944                 xpt_done(ccb);
  945                 break;
  946         }
  947         default:
  948                 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
  949                 xpt_done(ccb);
  950                 break;
  951         }
  952 }
  953 
  954 static void
  955 ahc_get_tran_settings(struct ahc_softc *ahc, int our_id, char channel,
  956                       struct ccb_trans_settings *cts)
  957 {
  958 #ifdef AHC_NEW_TRAN_SETTINGS
  959         struct  ahc_devinfo devinfo;
  960         struct  ccb_trans_settings_scsi *scsi;
  961         struct  ccb_trans_settings_spi *spi;
  962         struct  ahc_initiator_tinfo *targ_info;
  963         struct  ahc_tmode_tstate *tstate;
  964         struct  ahc_transinfo *tinfo;
  965 
  966         scsi = &cts->proto_specific.scsi;
  967         spi = &cts->xport_specific.spi;
  968         ahc_compile_devinfo(&devinfo, our_id,
  969                             cts->ccb_h.target_id,
  970                             cts->ccb_h.target_lun,
  971                             channel, ROLE_UNKNOWN);
  972         targ_info = ahc_fetch_transinfo(ahc, devinfo.channel,
  973                                         devinfo.our_scsiid,
  974                                         devinfo.target, &tstate);
  975         
  976         if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
  977                 tinfo = &targ_info->curr;
  978         else
  979                 tinfo = &targ_info->user;
  980         
  981         scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
  982         spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB;
  983         if (cts->type == CTS_TYPE_USER_SETTINGS) {
  984                 if ((ahc->user_discenable & devinfo.target_mask) != 0)
  985                         spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
  986 
  987                 if ((ahc->user_tagenable & devinfo.target_mask) != 0)
  988                         scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
  989         } else {
  990                 if ((tstate->discenable & devinfo.target_mask) != 0)
  991                         spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
  992 
  993                 if ((tstate->tagenable & devinfo.target_mask) != 0)
  994                         scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
  995         }
  996         cts->protocol_version = tinfo->protocol_version;
  997         cts->transport_version = tinfo->transport_version;
  998 
  999         spi->sync_period = tinfo->period;
 1000         spi->sync_offset = tinfo->offset;
 1001         spi->bus_width = tinfo->width;
 1002         spi->ppr_options = tinfo->ppr_options;
 1003         
 1004         cts->protocol = PROTO_SCSI;
 1005         cts->transport = XPORT_SPI;
 1006         spi->valid = CTS_SPI_VALID_SYNC_RATE
 1007                    | CTS_SPI_VALID_SYNC_OFFSET
 1008                    | CTS_SPI_VALID_BUS_WIDTH
 1009                    | CTS_SPI_VALID_PPR_OPTIONS;
 1010 
 1011         if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
 1012                 scsi->valid = CTS_SCSI_VALID_TQ;
 1013                 spi->valid |= CTS_SPI_VALID_DISC;
 1014         } else {
 1015                 scsi->valid = 0;
 1016         }
 1017 
 1018         cts->ccb_h.status = CAM_REQ_CMP;
 1019 #else
 1020         struct  ahc_devinfo devinfo;
 1021         struct  ahc_initiator_tinfo *targ_info;
 1022         struct  ahc_tmode_tstate *tstate;
 1023         struct  ahc_transinfo *tinfo;
 1024 
 1025         ahc_compile_devinfo(&devinfo, our_id,
 1026                             cts->ccb_h.target_id,
 1027                             cts->ccb_h.target_lun,
 1028                             channel, ROLE_UNKNOWN);
 1029         targ_info = ahc_fetch_transinfo(ahc, devinfo.channel,
 1030                                         devinfo.our_scsiid,
 1031                                         devinfo.target, &tstate);
 1032         
 1033         if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0)
 1034                 tinfo = &targ_info->curr;
 1035         else
 1036                 tinfo = &targ_info->user;
 1037         
 1038         cts->flags &= ~(CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB);
 1039         if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) == 0) {
 1040                 if ((ahc->user_discenable & devinfo.target_mask) != 0)
 1041                         cts->flags |= CCB_TRANS_DISC_ENB;
 1042 
 1043                 if ((ahc->user_tagenable & devinfo.target_mask) != 0)
 1044                         cts->flags |= CCB_TRANS_TAG_ENB;
 1045         } else {
 1046                 if ((tstate->discenable & devinfo.target_mask) != 0)
 1047                         cts->flags |= CCB_TRANS_DISC_ENB;
 1048 
 1049                 if ((tstate->tagenable & devinfo.target_mask) != 0)
 1050                         cts->flags |= CCB_TRANS_TAG_ENB;
 1051         }
 1052         cts->sync_period = tinfo->period;
 1053         cts->sync_offset = tinfo->offset;
 1054         cts->bus_width = tinfo->width;
 1055         
 1056         cts->valid = CCB_TRANS_SYNC_RATE_VALID
 1057                    | CCB_TRANS_SYNC_OFFSET_VALID
 1058                    | CCB_TRANS_BUS_WIDTH_VALID;
 1059 
 1060         if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD)
 1061                 cts->valid |= CCB_TRANS_DISC_VALID|CCB_TRANS_TQ_VALID;
 1062 
 1063         cts->ccb_h.status = CAM_REQ_CMP;
 1064 #endif
 1065 }
 1066 
 1067 static void
 1068 ahc_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg)
 1069 {
 1070         struct ahc_softc *ahc;
 1071         struct cam_sim *sim;
 1072 
 1073         sim = (struct cam_sim *)callback_arg;
 1074         ahc = (struct ahc_softc *)cam_sim_softc(sim);
 1075         switch (code) {
 1076         case AC_LOST_DEVICE:
 1077         {
 1078                 struct  ahc_devinfo devinfo;
 1079                 long    s;
 1080 
 1081                 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim),
 1082                                     xpt_path_target_id(path),
 1083                                     xpt_path_lun_id(path),
 1084                                     SIM_CHANNEL(ahc, sim),
 1085                                     ROLE_UNKNOWN);
 1086 
 1087                 /*
 1088                  * Revert to async/narrow transfers
 1089                  * for the next device.
 1090                  */
 1091                 ahc_lock(ahc, &s);
 1092                 ahc_set_width(ahc, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
 1093                               AHC_TRANS_GOAL|AHC_TRANS_CUR, /*paused*/FALSE);
 1094                 ahc_set_syncrate(ahc, &devinfo, /*syncrate*/NULL,
 1095                                  /*period*/0, /*offset*/0, /*ppr_options*/0,
 1096                                  AHC_TRANS_GOAL|AHC_TRANS_CUR,
 1097                                  /*paused*/FALSE);
 1098                 ahc_unlock(ahc, &s);
 1099                 break;
 1100         }
 1101         default:
 1102                 break;
 1103         }
 1104 }
 1105 
 1106 static void
 1107 ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments,
 1108                 int error)
 1109 {
 1110         struct  scb *scb;
 1111         union   ccb *ccb;
 1112         struct  ahc_softc *ahc;
 1113         struct  ahc_initiator_tinfo *tinfo;
 1114         struct  ahc_tmode_tstate *tstate;
 1115         u_int   mask;
 1116         long    s;
 1117 
 1118         scb = (struct scb *)arg;
 1119         ccb = scb->io_ctx;
 1120         ahc = scb->ahc_softc;
 1121 
 1122         if (error != 0) {
 1123                 if (error == EFBIG)
 1124                         aic_set_transaction_status(scb, CAM_REQ_TOO_BIG);
 1125                 else
 1126                         aic_set_transaction_status(scb, CAM_REQ_CMP_ERR);
 1127                 if (nsegments != 0)
 1128                         bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap);
 1129                 ahc_lock(ahc, &s);
 1130                 ahc_free_scb(ahc, scb);
 1131                 ahc_unlock(ahc, &s);
 1132                 xpt_done(ccb);
 1133                 return;
 1134         }
 1135         if (nsegments != 0) {
 1136                 struct    ahc_dma_seg *sg;
 1137                 bus_dma_segment_t *end_seg;
 1138                 bus_dmasync_op_t op;
 1139 
 1140                 end_seg = dm_segs + nsegments;
 1141 
 1142                 /* Copy the segments into our SG list */
 1143                 sg = scb->sg_list;
 1144                 while (dm_segs < end_seg) {
 1145                         uint32_t len;
 1146 
 1147                         sg->addr = aic_htole32(dm_segs->ds_addr);
 1148                         len = dm_segs->ds_len
 1149                             | ((dm_segs->ds_addr >> 8) & 0x7F000000);
 1150                         sg->len = aic_htole32(len);
 1151                         sg++;
 1152                         dm_segs++;
 1153                 }
 1154                 
 1155                 /*
 1156                  * Note where to find the SG entries in bus space.
 1157                  * We also set the full residual flag which the 
 1158                  * sequencer will clear as soon as a data transfer
 1159                  * occurs.
 1160                  */
 1161                 scb->hscb->sgptr = aic_htole32(scb->sg_list_phys|SG_FULL_RESID);
 1162 
 1163                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
 1164                         op = BUS_DMASYNC_PREREAD;
 1165                 else
 1166                         op = BUS_DMASYNC_PREWRITE;
 1167 
 1168                 bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op);
 1169 
 1170                 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
 1171                         struct target_data *tdata;
 1172 
 1173                         tdata = &scb->hscb->shared_data.tdata;
 1174                         tdata->target_phases |= DPHASE_PENDING;
 1175                         /*
 1176                          * CAM data direction is relative to the initiator.
 1177                          */
 1178                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
 1179                                 tdata->data_phase = P_DATAOUT;
 1180                         else
 1181                                 tdata->data_phase = P_DATAIN;
 1182 
 1183                         /*
 1184                          * If the transfer is of an odd length and in the
 1185                          * "in" direction (scsi->HostBus), then it may
 1186                          * trigger a bug in the 'WideODD' feature of
 1187                          * non-Ultra2 chips.  Force the total data-length
 1188                          * to be even by adding an extra, 1 byte, SG,
 1189                          * element.  We do this even if we are not currently
 1190                          * negotiated wide as negotiation could occur before
 1191                          * this command is executed.
 1192                          */
 1193                         if ((ahc->bugs & AHC_TMODE_WIDEODD_BUG) != 0
 1194                          && (ccb->csio.dxfer_len & 0x1) != 0
 1195                          && (ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
 1196 
 1197                                 nsegments++;
 1198                                 if (nsegments > AHC_NSEG) {
 1199 
 1200                                         aic_set_transaction_status(scb,
 1201                                             CAM_REQ_TOO_BIG);
 1202                                         bus_dmamap_unload(ahc->buffer_dmat,
 1203                                                           scb->dmamap);
 1204                                         ahc_lock(ahc, &s);
 1205                                         ahc_free_scb(ahc, scb);
 1206                                         ahc_unlock(ahc, &s);
 1207                                         xpt_done(ccb);
 1208                                         return;
 1209                                 }
 1210                                 sg->addr = aic_htole32(ahc->dma_bug_buf);
 1211                                 sg->len = aic_htole32(1);
 1212                                 sg++;
 1213                         }
 1214                 }
 1215                 sg--;
 1216                 sg->len |= aic_htole32(AHC_DMA_LAST_SEG);
 1217 
 1218                 /* Copy the first SG into the "current" data pointer area */
 1219                 scb->hscb->dataptr = scb->sg_list->addr;
 1220                 scb->hscb->datacnt = scb->sg_list->len;
 1221         } else {
 1222                 scb->hscb->sgptr = aic_htole32(SG_LIST_NULL);
 1223                 scb->hscb->dataptr = 0;
 1224                 scb->hscb->datacnt = 0;
 1225         }
 1226         
 1227         scb->sg_count = nsegments;
 1228 
 1229         ahc_lock(ahc, &s);
 1230 
 1231         /*
 1232          * Last time we need to check if this SCB needs to
 1233          * be aborted.
 1234          */
 1235         if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) {
 1236                 if (nsegments != 0)
 1237                         bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap);
 1238                 ahc_free_scb(ahc, scb);
 1239                 ahc_unlock(ahc, &s);
 1240                 xpt_done(ccb);
 1241                 return;
 1242         }
 1243 
 1244         tinfo = ahc_fetch_transinfo(ahc, SCSIID_CHANNEL(ahc, scb->hscb->scsiid),
 1245                                     SCSIID_OUR_ID(scb->hscb->scsiid),
 1246                                     SCSIID_TARGET(ahc, scb->hscb->scsiid),
 1247                                     &tstate);
 1248 
 1249         mask = SCB_GET_TARGET_MASK(ahc, scb);
 1250         scb->hscb->scsirate = tinfo->scsirate;
 1251         scb->hscb->scsioffset = tinfo->curr.offset;
 1252         if ((tstate->ultraenb & mask) != 0)
 1253                 scb->hscb->control |= ULTRAENB;
 1254 
 1255         if ((tstate->discenable & mask) != 0
 1256          && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0)
 1257                 scb->hscb->control |= DISCENB;
 1258 
 1259         if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0
 1260          && (tinfo->goal.width != 0
 1261           || tinfo->goal.offset != 0
 1262           || tinfo->goal.ppr_options != 0)) {
 1263                 scb->flags |= SCB_NEGOTIATE;
 1264                 scb->hscb->control |= MK_MESSAGE;
 1265         } else if ((tstate->auto_negotiate & mask) != 0) {
 1266                 scb->flags |= SCB_AUTO_NEGOTIATE;
 1267                 scb->hscb->control |= MK_MESSAGE;
 1268         }
 1269 
 1270         LIST_INSERT_HEAD(&ahc->pending_scbs, scb, pending_links);
 1271 
 1272         ccb->ccb_h.status |= CAM_SIM_QUEUED;
 1273 
 1274         /*
 1275          * We only allow one untagged transaction
 1276          * per target in the initiator role unless
 1277          * we are storing a full busy target *lun*
 1278          * table in SCB space.
 1279          */
 1280         if ((scb->hscb->control & (TARGET_SCB|TAG_ENB)) == 0
 1281          && (ahc->flags & AHC_SCB_BTT) == 0) {
 1282                 struct scb_tailq *untagged_q;
 1283                 int target_offset;
 1284 
 1285                 target_offset = SCB_GET_TARGET_OFFSET(ahc, scb);
 1286                 untagged_q = &(ahc->untagged_queues[target_offset]);
 1287                 TAILQ_INSERT_TAIL(untagged_q, scb, links.tqe);
 1288                 scb->flags |= SCB_UNTAGGEDQ;
 1289                 if (TAILQ_FIRST(untagged_q) != scb) {
 1290                         ahc_unlock(ahc, &s);
 1291                         return;
 1292                 }
 1293         }
 1294         scb->flags |= SCB_ACTIVE;
 1295 
 1296         /*
 1297          * Timers are disabled while recovery is in progress.
 1298          */
 1299         aic_scb_timer_start(scb);
 1300 
 1301         if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) {
 1302                 /* Define a mapping from our tag to the SCB. */
 1303                 ahc->scb_data->scbindex[scb->hscb->tag] = scb;
 1304                 ahc_pause(ahc);
 1305                 if ((ahc->flags & AHC_PAGESCBS) == 0)
 1306                         ahc_outb(ahc, SCBPTR, scb->hscb->tag);
 1307                 ahc_outb(ahc, TARG_IMMEDIATE_SCB, scb->hscb->tag);
 1308                 ahc_unpause(ahc);
 1309         } else {
 1310                 ahc_queue_scb(ahc, scb);
 1311         }
 1312 
 1313         ahc_unlock(ahc, &s);
 1314 }
 1315 
 1316 static void
 1317 ahc_poll(struct cam_sim *sim)
 1318 {
 1319         struct ahc_softc *ahc;
 1320 
 1321         ahc = (struct ahc_softc *)cam_sim_softc(sim);
 1322         ahc_intr(ahc);
 1323 }
 1324 
 1325 static void
 1326 ahc_setup_data(struct ahc_softc *ahc, struct cam_sim *sim,
 1327                struct ccb_scsiio *csio, struct scb *scb)
 1328 {
 1329         struct hardware_scb *hscb;
 1330         struct ccb_hdr *ccb_h;
 1331         
 1332         hscb = scb->hscb;
 1333         ccb_h = &csio->ccb_h;
 1334         
 1335         csio->resid = 0;
 1336         csio->sense_resid = 0;
 1337         if (ccb_h->func_code == XPT_SCSI_IO) {
 1338                 hscb->cdb_len = csio->cdb_len;
 1339                 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) {
 1340 
 1341                         if (hscb->cdb_len > sizeof(hscb->cdb32)
 1342                          || (ccb_h->flags & CAM_CDB_PHYS) != 0) {
 1343                                 u_long s;
 1344 
 1345                                 aic_set_transaction_status(scb,
 1346                                                            CAM_REQ_INVALID);
 1347                                 ahc_lock(ahc, &s);
 1348                                 ahc_free_scb(ahc, scb);
 1349                                 ahc_unlock(ahc, &s);
 1350                                 xpt_done((union ccb *)csio);
 1351                                 return;
 1352                         }
 1353                         if (hscb->cdb_len > 12) {
 1354                                 memcpy(hscb->cdb32, 
 1355                                        csio->cdb_io.cdb_ptr,
 1356                                        hscb->cdb_len);
 1357                                 scb->flags |= SCB_CDB32_PTR;
 1358                         } else {
 1359                                 memcpy(hscb->shared_data.cdb, 
 1360                                        csio->cdb_io.cdb_ptr,
 1361                                        hscb->cdb_len);
 1362                         }
 1363                 } else {
 1364                         if (hscb->cdb_len > 12) {
 1365                                 memcpy(hscb->cdb32, csio->cdb_io.cdb_bytes,
 1366                                        hscb->cdb_len);
 1367                                 scb->flags |= SCB_CDB32_PTR;
 1368                         } else {
 1369                                 memcpy(hscb->shared_data.cdb,
 1370                                        csio->cdb_io.cdb_bytes,
 1371                                        hscb->cdb_len);
 1372                         }
 1373                 }
 1374         }
 1375                 
 1376         /* Only use S/G if there is a transfer */
 1377         if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
 1378                 if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) {
 1379                         /* We've been given a pointer to a single buffer */
 1380                         if ((ccb_h->flags & CAM_DATA_PHYS) == 0) {
 1381                                 int s;
 1382                                 int error;
 1383 
 1384                                 s = splsoftvm();
 1385                                 error = bus_dmamap_load(ahc->buffer_dmat,
 1386                                                         scb->dmamap,
 1387                                                         csio->data_ptr,
 1388                                                         csio->dxfer_len,
 1389                                                         ahc_execute_scb,
 1390                                                         scb, /*flags*/0);
 1391                                 if (error == EINPROGRESS) {
 1392                                         /*
 1393                                          * So as to maintain ordering,
 1394                                          * freeze the controller queue
 1395                                          * until our mapping is
 1396                                          * returned.
 1397                                          */
 1398                                         xpt_freeze_simq(sim,
 1399                                                         /*count*/1);
 1400                                         scb->io_ctx->ccb_h.status |=
 1401                                             CAM_RELEASE_SIMQ;
 1402                                 }
 1403                                 splx(s);
 1404                         } else {
 1405                                 struct bus_dma_segment seg;
 1406 
 1407                                 /* Pointer to physical buffer */
 1408                                 if (csio->dxfer_len > AHC_MAXTRANSFER_SIZE)
 1409                                         panic("ahc_setup_data - Transfer size "
 1410                                               "larger than can device max");
 1411 
 1412                                 seg.ds_addr =
 1413                                     (bus_addr_t)(vm_offset_t)csio->data_ptr;
 1414                                 seg.ds_len = csio->dxfer_len;
 1415                                 ahc_execute_scb(scb, &seg, 1, 0);
 1416                         }
 1417                 } else {
 1418                         struct bus_dma_segment *segs;
 1419 
 1420                         if ((ccb_h->flags & CAM_DATA_PHYS) != 0)
 1421                                 panic("ahc_setup_data - Physical segment "
 1422                                       "pointers unsupported");
 1423 
 1424                         if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0)
 1425                                 panic("ahc_setup_data - Virtual segment "
 1426                                       "addresses unsupported");
 1427 
 1428                         /* Just use the segments provided */
 1429                         segs = (struct bus_dma_segment *)csio->data_ptr;
 1430                         ahc_execute_scb(scb, segs, csio->sglist_cnt, 0);
 1431                 }
 1432         } else {
 1433                 ahc_execute_scb(scb, NULL, 0, 0);
 1434         }
 1435 }
 1436 
 1437 static void
 1438 ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim, union ccb *ccb)
 1439 {
 1440         union ccb *abort_ccb;
 1441 
 1442         abort_ccb = ccb->cab.abort_ccb;
 1443         switch (abort_ccb->ccb_h.func_code) {
 1444         case XPT_ACCEPT_TARGET_IO:
 1445         case XPT_IMMED_NOTIFY:
 1446         case XPT_CONT_TARGET_IO:
 1447         {
 1448                 struct ahc_tmode_tstate *tstate;
 1449                 struct ahc_tmode_lstate *lstate;
 1450                 struct ccb_hdr_slist *list;
 1451                 cam_status status;
 1452 
 1453                 status = ahc_find_tmode_devs(ahc, sim, abort_ccb, &tstate,
 1454                                              &lstate, TRUE);
 1455 
 1456                 if (status != CAM_REQ_CMP) {
 1457                         ccb->ccb_h.status = status;
 1458                         break;
 1459                 }
 1460 
 1461                 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO)
 1462                         list = &lstate->accept_tios;
 1463                 else if (abort_ccb->ccb_h.func_code == XPT_IMMED_NOTIFY)
 1464                         list = &lstate->immed_notifies;
 1465                 else
 1466                         list = NULL;
 1467 
 1468                 if (list != NULL) {
 1469                         struct ccb_hdr *curelm;
 1470                         int found;
 1471 
 1472                         curelm = SLIST_FIRST(list);
 1473                         found = 0;
 1474                         if (curelm == &abort_ccb->ccb_h) {
 1475                                 found = 1;
 1476                                 SLIST_REMOVE_HEAD(list, sim_links.sle);
 1477                         } else {
 1478                                 while(curelm != NULL) {
 1479                                         struct ccb_hdr *nextelm;
 1480 
 1481                                         nextelm =
 1482                                             SLIST_NEXT(curelm, sim_links.sle);
 1483 
 1484                                         if (nextelm == &abort_ccb->ccb_h) {
 1485                                                 found = 1;
 1486                                                 SLIST_NEXT(curelm,
 1487                                                            sim_links.sle) =
 1488                                                     SLIST_NEXT(nextelm,
 1489                                                                sim_links.sle);
 1490                                                 break;
 1491                                         }
 1492                                         curelm = nextelm;
 1493                                 }
 1494                         }
 1495 
 1496                         if (found) {
 1497                                 abort_ccb->ccb_h.status = CAM_REQ_ABORTED;
 1498                                 xpt_done(abort_ccb);
 1499                                 ccb->ccb_h.status = CAM_REQ_CMP;
 1500                         } else {
 1501                                 xpt_print_path(abort_ccb->ccb_h.path);
 1502                                 printf("Not found\n");
 1503                                 ccb->ccb_h.status = CAM_PATH_INVALID;
 1504                         }
 1505                         break;
 1506                 }
 1507                 /* FALLTHROUGH */
 1508         }
 1509         case XPT_SCSI_IO:
 1510                 /* XXX Fully implement the hard ones */
 1511                 ccb->ccb_h.status = CAM_UA_ABORT;
 1512                 break;
 1513         default:
 1514                 ccb->ccb_h.status = CAM_REQ_INVALID;
 1515                 break;
 1516         }
 1517         xpt_done(ccb);
 1518 }
 1519 
 1520 void
 1521 ahc_send_async(struct ahc_softc *ahc, char channel, u_int target,
 1522                 u_int lun, ac_code code, void *opt_arg)
 1523 {
 1524         struct  ccb_trans_settings cts;
 1525         struct cam_path *path;
 1526         void *arg;
 1527         int error;
 1528 
 1529         arg = NULL;
 1530         error = ahc_create_path(ahc, channel, target, lun, &path);
 1531 
 1532         if (error != CAM_REQ_CMP)
 1533                 return;
 1534 
 1535         switch (code) {
 1536         case AC_TRANSFER_NEG:
 1537         {
 1538 #ifdef AHC_NEW_TRAN_SETTINGS
 1539                 struct  ccb_trans_settings_scsi *scsi;
 1540         
 1541                 cts.type = CTS_TYPE_CURRENT_SETTINGS;
 1542                 scsi = &cts.proto_specific.scsi;
 1543 #else
 1544                 cts.flags = CCB_TRANS_CURRENT_SETTINGS;
 1545 #endif
 1546                 cts.ccb_h.path = path;
 1547                 cts.ccb_h.target_id = target;
 1548                 cts.ccb_h.target_lun = lun;
 1549                 ahc_get_tran_settings(ahc, channel == 'A' ? ahc->our_id
 1550                                                           : ahc->our_id_b,
 1551                                       channel, &cts);
 1552                 arg = &cts;
 1553 #ifdef AHC_NEW_TRAN_SETTINGS
 1554                 scsi->valid &= ~CTS_SCSI_VALID_TQ;
 1555                 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
 1556 #else
 1557                 cts.valid &= ~CCB_TRANS_TQ_VALID;
 1558                 cts.flags &= ~CCB_TRANS_TAG_ENB;
 1559 #endif
 1560                 if (opt_arg == NULL)
 1561                         break;
 1562                 if (*((ahc_queue_alg *)opt_arg) == AHC_QUEUE_TAGGED)
 1563 #ifdef AHC_NEW_TRAN_SETTINGS
 1564                         scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB;
 1565                 scsi->valid |= CTS_SCSI_VALID_TQ;
 1566 #else
 1567                         cts.flags |= CCB_TRANS_TAG_ENB;
 1568                 cts.valid |= CCB_TRANS_TQ_VALID;
 1569 #endif
 1570                 break;
 1571         }
 1572         case AC_SENT_BDR:
 1573         case AC_BUS_RESET:
 1574                 break;
 1575         default:
 1576                 panic("ahc_send_async: Unexpected async event");
 1577         }
 1578         xpt_async(code, path, arg);
 1579         xpt_free_path(path);
 1580 }
 1581 
 1582 void
 1583 ahc_platform_set_tags(struct ahc_softc *ahc,
 1584                       struct ahc_devinfo *devinfo, int enable)
 1585 {
 1586 }
 1587 
 1588 int
 1589 ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg)
 1590 {
 1591         ahc->platform_data = malloc(sizeof(struct ahc_platform_data), M_DEVBUF,
 1592             M_NOWAIT | M_ZERO);
 1593         if (ahc->platform_data == NULL)
 1594                 return (ENOMEM);
 1595         return (0);
 1596 }
 1597 
 1598 void
 1599 ahc_platform_free(struct ahc_softc *ahc)
 1600 {
 1601         struct ahc_platform_data *pdata;
 1602 
 1603         pdata = ahc->platform_data;
 1604         if (pdata != NULL) {
 1605                 if (pdata->regs != NULL)
 1606                         bus_release_resource(ahc->dev_softc,
 1607                                              pdata->regs_res_type,
 1608                                              pdata->regs_res_id,
 1609                                              pdata->regs);
 1610 
 1611                 if (pdata->irq != NULL)
 1612                         bus_release_resource(ahc->dev_softc,
 1613                                              pdata->irq_res_type,
 1614                                              0, pdata->irq);
 1615 
 1616                 if (pdata->sim_b != NULL) {
 1617                         xpt_async(AC_LOST_DEVICE, pdata->path_b, NULL);
 1618                         xpt_free_path(pdata->path_b);
 1619                         xpt_bus_deregister(cam_sim_path(pdata->sim_b));
 1620                         cam_sim_free(pdata->sim_b, /*free_devq*/TRUE);
 1621                 }
 1622                 if (pdata->sim != NULL) {
 1623                         xpt_async(AC_LOST_DEVICE, pdata->path, NULL);
 1624                         xpt_free_path(pdata->path);
 1625                         xpt_bus_deregister(cam_sim_path(pdata->sim));
 1626                         cam_sim_free(pdata->sim, /*free_devq*/TRUE);
 1627                 }
 1628                 if (pdata->eh != NULL)
 1629                         EVENTHANDLER_DEREGISTER(shutdown_final, pdata->eh);
 1630                 free(ahc->platform_data, M_DEVBUF);
 1631         }
 1632 }
 1633 
 1634 int
 1635 ahc_softc_comp(struct ahc_softc *lahc, struct ahc_softc *rahc)
 1636 {
 1637         /* We don't sort softcs under FreeBSD so report equal always */
 1638         return (0);
 1639 }
 1640 
 1641 int
 1642 ahc_detach(device_t dev)
 1643 {
 1644         struct ahc_softc *ahc;
 1645         u_long l;
 1646         u_long s;
 1647 
 1648         ahc_list_lock(&l);
 1649         device_printf(dev, "detaching device\n");
 1650         ahc = device_get_softc(dev);
 1651         ahc = ahc_find_softc(ahc);
 1652         if (ahc == NULL) {
 1653                 device_printf(dev, "aic7xxx already detached\n");
 1654                 ahc_list_unlock(&l);
 1655                 return (ENOENT);
 1656         }
 1657         TAILQ_REMOVE(&ahc_tailq, ahc, links);
 1658         ahc_list_unlock(&l);
 1659         ahc_lock(ahc, &s);
 1660         ahc_intr_enable(ahc, FALSE);
 1661         bus_teardown_intr(dev, ahc->platform_data->irq, ahc->platform_data->ih);
 1662         ahc_unlock(ahc, &s);
 1663         ahc_free(ahc);
 1664         return (0);
 1665 }
 1666 
 1667 #if UNUSED
 1668 static void
 1669 ahc_dump_targcmd(struct target_cmd *cmd)
 1670 {
 1671         uint8_t *byte;
 1672         uint8_t *last_byte;
 1673         int i;
 1674 
 1675         byte = &cmd->initiator_channel;
 1676         /* Debugging info for received commands */
 1677         last_byte = &cmd[1].initiator_channel;
 1678 
 1679         i = 0;
 1680         while (byte < last_byte) {
 1681                 if (i == 0)
 1682                         printf("\t");
 1683                 printf("%#x", *byte++);
 1684                 i++;
 1685                 if (i == 8) {
 1686                         printf("\n");
 1687                         i = 0;
 1688                 } else {
 1689                         printf(", ");
 1690                 }
 1691         }
 1692 }
 1693 #endif
 1694 
 1695 static int
 1696 ahc_modevent(module_t mod, int type, void *data)
 1697 {
 1698         /* XXX Deal with busy status on unload. */
 1699         /* XXX Deal with unknown events */
 1700         return 0;
 1701 }
 1702   
 1703 static moduledata_t ahc_mod = {
 1704         "ahc",
 1705         ahc_modevent,
 1706         NULL
 1707 };
 1708 
 1709 DECLARE_MODULE(ahc, ahc_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
 1710 MODULE_DEPEND(ahc, cam, 1, 1, 1);
 1711 MODULE_VERSION(ahc, 1);

Cache object: eff9dc593c1a0ec5a2fe9dd28fddbcd9


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