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

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    1 /*
    2  * Copyright (c) HighPoint Technologies, Inc.
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  */
   26 
   27 #include <sys/cdefs.h>
   28 __FBSDID("$FreeBSD: stable/9/sys/dev/hptrr/hptrr_osm_bsd.c 267458 2014-06-14 00:54:57Z delphij $");
   29 
   30 #include <dev/hptrr/hptrr_config.h>
   31 /* $Id: osm_bsd.c,v 1.27 2007/11/22 07:35:49 gmm Exp $
   32  *
   33  * HighPoint RAID Driver for FreeBSD
   34  * Copyright (C) 2005 HighPoint Technologies, Inc. All Rights Reserved.
   35  */
   36 #include <dev/hptrr/os_bsd.h>
   37 #include <dev/hptrr/hptintf.h>
   38 
   39 static int attach_generic = 0;
   40 TUNABLE_INT("hw.hptrr.attach_generic", &attach_generic);
   41 
   42 static int hpt_probe(device_t dev)
   43 {
   44         PCI_ID pci_id;
   45         HIM *him;
   46         int i;
   47         PHBA hba;
   48 
   49         /* Some of supported chips are used not only by HPT. */
   50         if (pci_get_vendor(dev) != 0x1103 && !attach_generic)
   51                 return (ENXIO);
   52         for (him = him_list; him; him = him->next) {
   53                 for (i=0; him->get_supported_device_id(i, &pci_id); i++) {
   54                         if ((pci_get_vendor(dev) == pci_id.vid) &&
   55                                 (pci_get_device(dev) == pci_id.did)){
   56                                 KdPrint(("hpt_probe: adapter at PCI %d:%d:%d, IRQ %d",
   57                                         pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev), pci_get_irq(dev)
   58                                 ));
   59                                 device_set_desc(dev, him->name);
   60                                 hba = (PHBA)device_get_softc(dev);
   61                                 memset(hba, 0, sizeof(HBA));
   62                                 hba->ext_type = EXT_TYPE_HBA;
   63                                 hba->ldm_adapter.him = him;
   64                                 return (BUS_PROBE_DEFAULT);
   65                         }
   66                 }
   67         }
   68 
   69         return (ENXIO);
   70 }
   71 
   72 static int hpt_attach(device_t dev)
   73 {
   74         PHBA hba = (PHBA)device_get_softc(dev);
   75         HIM *him = hba->ldm_adapter.him;
   76         PCI_ID pci_id;
   77         HPT_UINT size;
   78         PVBUS vbus;
   79         PVBUS_EXT vbus_ext;
   80         
   81         KdPrint(("hpt_attach(%d/%d/%d)", pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev)));
   82         
   83 #if __FreeBSD_version >=440000
   84         pci_enable_busmaster(dev);
   85 #endif
   86 
   87         pci_id.vid = pci_get_vendor(dev);
   88         pci_id.did = pci_get_device(dev);
   89         pci_id.rev = pci_get_revid(dev);
   90 
   91         size = him->get_adapter_size(&pci_id);
   92         hba->ldm_adapter.him_handle = malloc(size, M_DEVBUF, M_WAITOK);
   93         if (!hba->ldm_adapter.him_handle)
   94                 return ENXIO;
   95 
   96         hba->pcidev = dev;
   97         hba->pciaddr.tree = 0;
   98         hba->pciaddr.bus = pci_get_bus(dev);
   99         hba->pciaddr.device = pci_get_slot(dev);
  100         hba->pciaddr.function = pci_get_function(dev);
  101 
  102         if (!him->create_adapter(&pci_id, hba->pciaddr, hba->ldm_adapter.him_handle, hba)) {
  103                 free(hba->ldm_adapter.him_handle, M_DEVBUF);
  104                 return -1;
  105         }
  106 
  107         os_printk("adapter at PCI %d:%d:%d, IRQ %d",
  108                 hba->pciaddr.bus, hba->pciaddr.device, hba->pciaddr.function, pci_get_irq(dev));
  109 
  110         if (!ldm_register_adapter(&hba->ldm_adapter)) {
  111                 size = ldm_get_vbus_size();
  112                 vbus_ext = malloc(sizeof(VBUS_EXT) + size, M_DEVBUF, M_WAITOK);
  113                 if (!vbus_ext) {
  114                         free(hba->ldm_adapter.him_handle, M_DEVBUF);
  115                         return -1;
  116                 }
  117                 memset(vbus_ext, 0, sizeof(VBUS_EXT));
  118                 vbus_ext->ext_type = EXT_TYPE_VBUS;
  119                 ldm_create_vbus((PVBUS)vbus_ext->vbus, vbus_ext);
  120                 ldm_register_adapter(&hba->ldm_adapter);
  121         }
  122 
  123         ldm_for_each_vbus(vbus, vbus_ext) {
  124                 if (hba->ldm_adapter.vbus==vbus) {
  125                         hba->vbus_ext = vbus_ext;
  126                         hba->next = vbus_ext->hba_list;
  127                         vbus_ext->hba_list = hba;
  128                         break;
  129                 }
  130         }       
  131         return 0;
  132 }
  133 
  134 /*
  135  * Maybe we'd better to use the bus_dmamem_alloc to alloc DMA memory,
  136  * but there are some problems currently (alignment, etc).
  137  */
  138 static __inline void *__get_free_pages(int order)
  139 {
  140         /* don't use low memory - other devices may get starved */
  141         return contigmalloc(PAGE_SIZE<<order, 
  142                         M_DEVBUF, M_WAITOK, BUS_SPACE_MAXADDR_24BIT, BUS_SPACE_MAXADDR, PAGE_SIZE, 0);
  143 }
  144 
  145 static __inline void free_pages(void *p, int order)
  146 {
  147         contigfree(p, PAGE_SIZE<<order, M_DEVBUF);
  148 }
  149 
  150 static int hpt_alloc_mem(PVBUS_EXT vbus_ext)
  151 {
  152         PHBA hba;
  153         struct freelist *f;
  154         HPT_UINT i;
  155         void **p;
  156 
  157         for (hba = vbus_ext->hba_list; hba; hba = hba->next)
  158                 hba->ldm_adapter.him->get_meminfo(hba->ldm_adapter.him_handle);
  159 
  160         ldm_get_mem_info((PVBUS)vbus_ext->vbus, 0);
  161 
  162         for (f=vbus_ext->freelist_head; f; f=f->next) {
  163                 KdPrint(("%s: %d*%d=%d bytes",
  164                         f->tag, f->count, f->size, f->count*f->size));
  165                 for (i=0; i<f->count; i++) {
  166                         p = (void **)malloc(f->size, M_DEVBUF, M_WAITOK);
  167                         if (!p) return (ENXIO);
  168                         *p = f->head;
  169                         f->head = p;
  170                 }
  171         }
  172 
  173         for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
  174                 int order, size, j;
  175 
  176                 HPT_ASSERT((f->size & (f->alignment-1))==0);
  177 
  178                 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ;
  179 
  180                 KdPrint(("%s: %d*%d=%d bytes, order %d",
  181                         f->tag, f->count, f->size, f->count*f->size, order));
  182                 HPT_ASSERT(f->alignment<=PAGE_SIZE);
  183 
  184                 for (i=0; i<f->count;) {
  185                         p = (void **)__get_free_pages(order);
  186                         if (!p) return -1;
  187                         for (j = size/f->size; j && i<f->count; i++,j--) {
  188                                 *p = f->head;
  189                                 *(BUS_ADDRESS *)(p+1) = (BUS_ADDRESS)vtophys(p);
  190                                 f->head = p;
  191                                 p = (void **)((unsigned long)p + f->size);
  192                         }
  193                 }
  194         }
  195         
  196         HPT_ASSERT(PAGE_SIZE==DMAPOOL_PAGE_SIZE);
  197 
  198         for (i=0; i<os_max_cache_pages; i++) {
  199                 p = (void **)__get_free_pages(0);
  200                 if (!p) return -1;
  201                 HPT_ASSERT(((HPT_UPTR)p & (DMAPOOL_PAGE_SIZE-1))==0);
  202                 dmapool_put_page((PVBUS)vbus_ext->vbus, p, (BUS_ADDRESS)vtophys(p));
  203         }
  204 
  205         return 0;
  206 }
  207 
  208 static void hpt_free_mem(PVBUS_EXT vbus_ext)
  209 {
  210         struct freelist *f;
  211         void *p;
  212         int i;
  213         BUS_ADDRESS bus;
  214 
  215         for (f=vbus_ext->freelist_head; f; f=f->next) {
  216 #if DBG
  217                 if (f->count!=f->reserved_count) {
  218                         KdPrint(("memory leak for freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
  219                 }
  220 #endif
  221                 while ((p=freelist_get(f)))
  222                         free(p, M_DEVBUF);
  223         }
  224 
  225         for (i=0; i<os_max_cache_pages; i++) {
  226                 p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus);
  227                 HPT_ASSERT(p);
  228                 free_pages(p, 0);
  229         }
  230 
  231         for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
  232                 int order, size;
  233 #if DBG
  234                 if (f->count!=f->reserved_count) {
  235                         KdPrint(("memory leak for dma freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
  236                 }
  237 #endif
  238                 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ;
  239 
  240                 while ((p=freelist_get_dma(f, &bus))) {
  241                         if (order)
  242                                 free_pages(p, order);
  243                         else {
  244                         /* can't free immediately since other blocks in this page may still be in the list */
  245                                 if (((HPT_UPTR)p & (PAGE_SIZE-1))==0)
  246                                         dmapool_put_page((PVBUS)vbus_ext->vbus, p, bus);
  247                         }
  248                 }
  249         }
  250         
  251         while ((p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus)))
  252                 free_pages(p, 0);
  253 }
  254 
  255 static int hpt_init_vbus(PVBUS_EXT vbus_ext)
  256 {
  257         PHBA hba;
  258 
  259         for (hba = vbus_ext->hba_list; hba; hba = hba->next)
  260                 if (!hba->ldm_adapter.him->initialize(hba->ldm_adapter.him_handle)) {
  261                         KdPrint(("fail to initialize %p", hba));
  262                         return -1;
  263                 }
  264 
  265         ldm_initialize_vbus((PVBUS)vbus_ext->vbus, &vbus_ext->hba_list->ldm_adapter);
  266         return 0;
  267 }
  268 
  269 static void hpt_flush_done(PCOMMAND pCmd)
  270 {
  271         PVDEV vd = pCmd->target;
  272 
  273         if (mIsArray(vd->type) && vd->u.array.transform && vd!=vd->u.array.transform->target) {
  274                 vd = vd->u.array.transform->target;
  275                 HPT_ASSERT(vd);
  276                 pCmd->target = vd;
  277                 pCmd->Result = RETURN_PENDING;
  278                 vdev_queue_cmd(pCmd);
  279                 return;
  280         }
  281 
  282         *(int *)pCmd->priv = 1;
  283         wakeup(pCmd);
  284 }
  285 
  286 /*
  287  * flush a vdev (without retry).
  288  */
  289 static int hpt_flush_vdev(PVBUS_EXT vbus_ext, PVDEV vd)
  290 {
  291         PCOMMAND pCmd;
  292         int result = 0, done;
  293         HPT_UINT count;
  294 
  295         KdPrint(("flusing dev %p", vd));
  296 
  297         hpt_lock_vbus(vbus_ext);
  298 
  299         if (mIsArray(vd->type) && vd->u.array.transform)
  300                 count = MAX(vd->u.array.transform->source->cmds_per_request,
  301                                         vd->u.array.transform->target->cmds_per_request);
  302         else
  303                 count = vd->cmds_per_request;
  304 
  305         pCmd = ldm_alloc_cmds(vd->vbus, count);
  306 
  307         if (!pCmd) {
  308                 hpt_unlock_vbus(vbus_ext);
  309                 return -1;
  310         }
  311 
  312         pCmd->type = CMD_TYPE_FLUSH;
  313         pCmd->flags.hard_flush = 1;
  314         pCmd->target = vd;
  315         pCmd->done = hpt_flush_done;
  316         done = 0;
  317         pCmd->priv = &done;
  318 
  319         ldm_queue_cmd(pCmd);
  320         
  321         if (!done) {
  322                 while (hpt_sleep(vbus_ext, pCmd, PPAUSE, "hptfls", HPT_OSM_TIMEOUT)) {
  323                         ldm_reset_vbus(vd->vbus);
  324                 }
  325         }
  326 
  327         KdPrint(("flush result %d", pCmd->Result));
  328 
  329         if (pCmd->Result!=RETURN_SUCCESS)
  330                 result = -1;
  331 
  332         ldm_free_cmds(pCmd);
  333 
  334         hpt_unlock_vbus(vbus_ext);
  335 
  336         return result;
  337 }
  338 
  339 static void hpt_stop_tasks(PVBUS_EXT vbus_ext);
  340 static void hpt_shutdown_vbus(PVBUS_EXT vbus_ext, int howto)
  341 {
  342         PVBUS     vbus = (PVBUS)vbus_ext->vbus;
  343         PHBA hba;
  344         int i;
  345         
  346         KdPrint(("hpt_shutdown_vbus"));
  347 
  348         /* stop all ctl tasks and disable the worker taskqueue */
  349         hpt_stop_tasks(vbus_ext);
  350         vbus_ext->worker.ta_context = 0;
  351 
  352         /* flush devices */
  353         for (i=0; i<osm_max_targets; i++) {
  354                 PVDEV vd = ldm_find_target(vbus, i);
  355                 if (vd) {
  356                         /* retry once */
  357                         if (hpt_flush_vdev(vbus_ext, vd))
  358                                 hpt_flush_vdev(vbus_ext, vd);
  359                 }
  360         }
  361 
  362         hpt_lock_vbus(vbus_ext);
  363         ldm_shutdown(vbus);
  364         hpt_unlock_vbus(vbus_ext);
  365 
  366         ldm_release_vbus(vbus);
  367 
  368         for (hba=vbus_ext->hba_list; hba; hba=hba->next)
  369                 bus_teardown_intr(hba->pcidev, hba->irq_res, hba->irq_handle);
  370 
  371         hpt_free_mem(vbus_ext);
  372 
  373         while ((hba=vbus_ext->hba_list)) {
  374                 vbus_ext->hba_list = hba->next;
  375                 free(hba->ldm_adapter.him_handle, M_DEVBUF);
  376         }
  377 
  378         free(vbus_ext, M_DEVBUF);
  379         KdPrint(("hpt_shutdown_vbus done"));
  380 }
  381 
  382 static void __hpt_do_tasks(PVBUS_EXT vbus_ext)
  383 {
  384         OSM_TASK *tasks;
  385 
  386         tasks = vbus_ext->tasks;
  387         vbus_ext->tasks = 0;
  388 
  389         while (tasks) {
  390                 OSM_TASK *t = tasks;
  391                 tasks = t->next;
  392                 t->next = 0;
  393                 t->func(vbus_ext->vbus, t->data);
  394         }
  395 }
  396 
  397 static void hpt_do_tasks(PVBUS_EXT vbus_ext, int pending)
  398 {
  399         if(vbus_ext){
  400                 hpt_lock_vbus(vbus_ext);
  401                 __hpt_do_tasks(vbus_ext);
  402                 hpt_unlock_vbus(vbus_ext);
  403         }
  404 }
  405 
  406 static void hpt_action(struct cam_sim *sim, union ccb *ccb);
  407 static void hpt_poll(struct cam_sim *sim);
  408 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg);
  409 static void hpt_pci_intr(void *arg);
  410 
  411 static __inline POS_CMDEXT cmdext_get(PVBUS_EXT vbus_ext)
  412 {
  413         POS_CMDEXT p = vbus_ext->cmdext_list;
  414         if (p)
  415                 vbus_ext->cmdext_list = p->next;
  416         return p;
  417 }
  418 
  419 static __inline void cmdext_put(POS_CMDEXT p)
  420 {
  421         p->next = p->vbus_ext->cmdext_list;
  422         p->vbus_ext->cmdext_list = p;
  423 }
  424 
  425 static void hpt_timeout(void *arg)
  426 {
  427         PCOMMAND pCmd = (PCOMMAND)arg;
  428         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
  429         
  430         KdPrint(("pCmd %p timeout", pCmd));
  431         
  432         ldm_reset_vbus((PVBUS)ext->vbus_ext->vbus);
  433 }
  434 
  435 static void os_cmddone(PCOMMAND pCmd)
  436 {
  437         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
  438         union ccb *ccb = ext->ccb;
  439 
  440         KdPrint(("os_cmddone(%p, %d)", pCmd, pCmd->Result));
  441         
  442         untimeout(hpt_timeout, pCmd, ccb->ccb_h.timeout_ch);
  443 
  444         switch(pCmd->Result) {
  445         case RETURN_SUCCESS:
  446                 ccb->ccb_h.status = CAM_REQ_CMP;
  447                 break;
  448         case RETURN_BAD_DEVICE:
  449                 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
  450                 break;
  451         case RETURN_DEVICE_BUSY:
  452                 ccb->ccb_h.status = CAM_BUSY;
  453                 break;
  454         case RETURN_INVALID_REQUEST:
  455                 ccb->ccb_h.status = CAM_REQ_INVALID;
  456                 break;
  457         case RETURN_SELECTION_TIMEOUT:
  458                 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
  459                 break;
  460         case RETURN_RETRY:
  461                 ccb->ccb_h.status = CAM_BUSY;
  462                 break;
  463         default:
  464                 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR;
  465                 break;
  466         }
  467 
  468         if (pCmd->flags.data_in) {
  469                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTREAD);
  470         }
  471         else if (pCmd->flags.data_out) {
  472                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTWRITE);
  473         }
  474         
  475         bus_dmamap_unload(ext->vbus_ext->io_dmat, ext->dma_map);
  476 
  477         cmdext_put(ext);
  478         ldm_free_cmds(pCmd);
  479         xpt_done(ccb);
  480 }
  481 
  482 static int os_buildsgl(PCOMMAND pCmd, PSG pSg, int logical)
  483 {
  484         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
  485         union ccb *ccb = ext->ccb;
  486 
  487         if (logical) {
  488                 os_set_sgptr(pSg, (HPT_U8 *)ccb->csio.data_ptr);
  489                 pSg->size = ccb->csio.dxfer_len;
  490                 pSg->eot = 1;
  491                 return TRUE;
  492         }
  493 
  494         /* since we have provided physical sg, nobody will ask us to build physical sg */
  495         HPT_ASSERT(0);
  496         return FALSE;
  497 }
  498 
  499 static void hpt_io_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
  500 {
  501         PCOMMAND pCmd = (PCOMMAND)arg;
  502         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
  503         PSG psg = pCmd->psg;
  504         int idx;
  505         
  506         HPT_ASSERT(pCmd->flags.physical_sg);
  507         
  508         if (error)
  509                 panic("busdma error");
  510                 
  511         HPT_ASSERT(nsegs<=os_max_sg_descriptors);
  512 
  513         if (nsegs != 0) {
  514                 for (idx = 0; idx < nsegs; idx++, psg++) {
  515                         psg->addr.bus = segs[idx].ds_addr;
  516                         psg->size = segs[idx].ds_len;
  517                         psg->eot = 0;
  518                 }
  519                         psg[-1].eot = 1;
  520                 
  521                 if (pCmd->flags.data_in) {
  522                         bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map,
  523                             BUS_DMASYNC_PREREAD);
  524                 }
  525                 else if (pCmd->flags.data_out) {
  526                         bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map,
  527                             BUS_DMASYNC_PREWRITE);
  528                 }
  529         }
  530         ext->ccb->ccb_h.timeout_ch = timeout(hpt_timeout, pCmd, HPT_OSM_TIMEOUT);
  531         ldm_queue_cmd(pCmd);
  532 }
  533 
  534 static void hpt_scsi_io(PVBUS_EXT vbus_ext, union ccb *ccb)
  535 {
  536         PVBUS vbus = (PVBUS)vbus_ext->vbus;
  537         PVDEV vd;
  538         PCOMMAND pCmd;
  539         POS_CMDEXT ext;
  540         HPT_U8 *cdb;
  541 
  542         if (ccb->ccb_h.flags & CAM_CDB_POINTER)
  543                 cdb = ccb->csio.cdb_io.cdb_ptr;
  544         else
  545                 cdb = ccb->csio.cdb_io.cdb_bytes;
  546         
  547         KdPrint(("hpt_scsi_io: ccb %x id %d lun %d cdb %x-%x-%x",
  548                 ccb,
  549                 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
  550                 *(HPT_U32 *)&cdb[0], *(HPT_U32 *)&cdb[4], *(HPT_U32 *)&cdb[8]
  551         ));
  552 
  553         /* ccb->ccb_h.path_id is not our bus id - don't check it */
  554         if (ccb->ccb_h.target_lun != 0 ||
  555                 ccb->ccb_h.target_id >= osm_max_targets ||
  556                 (ccb->ccb_h.flags & CAM_CDB_PHYS))
  557         {
  558                 ccb->ccb_h.status = CAM_TID_INVALID;
  559                 xpt_done(ccb);
  560                 return;
  561         }
  562 
  563         vd = ldm_find_target(vbus, ccb->ccb_h.target_id);
  564 
  565         if (!vd) {
  566                 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
  567                 xpt_done(ccb);
  568                 return;
  569         }
  570    
  571         switch (cdb[0]) {
  572         case TEST_UNIT_READY:
  573         case START_STOP_UNIT:
  574         case SYNCHRONIZE_CACHE:
  575                 ccb->ccb_h.status = CAM_REQ_CMP;
  576                 break;
  577 
  578         case INQUIRY:
  579                 {
  580                         PINQUIRYDATA inquiryData;
  581                         memset(ccb->csio.data_ptr, 0, ccb->csio.dxfer_len);
  582                         inquiryData = (PINQUIRYDATA)ccb->csio.data_ptr;
  583                 
  584                         inquiryData->AdditionalLength = 31;
  585                         inquiryData->CommandQueue = 1;
  586                         memcpy(&inquiryData->VendorId, "HPT     ", 8);
  587                         memcpy(&inquiryData->ProductId, "DISK 0_0        ", 16);
  588         
  589                         if (vd->target_id / 10) {
  590                                 inquiryData->ProductId[7] = (vd->target_id % 100) / 10 + '';
  591                                 inquiryData->ProductId[8] = (vd->target_id % 100) % 10 + '';
  592                         }
  593                         else
  594                                 inquiryData->ProductId[7] = (vd->target_id % 100) % 10 + '';
  595         
  596                         memcpy(&inquiryData->ProductRevisionLevel, "4.00", 4);
  597         
  598                         ccb->ccb_h.status = CAM_REQ_CMP;
  599                 }
  600                 break;
  601 
  602         case READ_CAPACITY:
  603         {
  604                 HPT_U8 *rbuf = ccb->csio.data_ptr;
  605                 HPT_U32 cap;
  606                 
  607                 if (vd->capacity>0xfffffffful)
  608                         cap = 0xfffffffful;
  609                 else
  610                         cap = vd->capacity - 1;
  611         
  612                 rbuf[0] = (HPT_U8)(cap>>24);
  613                 rbuf[1] = (HPT_U8)(cap>>16);
  614                 rbuf[2] = (HPT_U8)(cap>>8);
  615                 rbuf[3] = (HPT_U8)cap;
  616                 rbuf[4] = 0;
  617                 rbuf[5] = 0;
  618                 rbuf[6] = 2;
  619                 rbuf[7] = 0;
  620 
  621                 ccb->ccb_h.status = CAM_REQ_CMP;
  622                 break;
  623         }
  624         
  625         case SERVICE_ACTION_IN: 
  626         {
  627                 HPT_U8 *rbuf = ccb->csio.data_ptr;
  628                 HPT_U64 cap = vd->capacity - 1;
  629                 
  630                 rbuf[0] = (HPT_U8)(cap>>56);
  631                 rbuf[1] = (HPT_U8)(cap>>48);
  632                 rbuf[2] = (HPT_U8)(cap>>40);
  633                 rbuf[3] = (HPT_U8)(cap>>32);
  634                 rbuf[4] = (HPT_U8)(cap>>24);
  635                 rbuf[5] = (HPT_U8)(cap>>16);
  636                 rbuf[6] = (HPT_U8)(cap>>8);
  637                 rbuf[7] = (HPT_U8)cap;
  638                 rbuf[8] = 0;
  639                 rbuf[9] = 0;
  640                 rbuf[10] = 2;
  641                 rbuf[11] = 0;
  642                 
  643                 ccb->ccb_h.status = CAM_REQ_CMP;
  644                 break;  
  645         }
  646         
  647         case READ_6:
  648         case READ_10:
  649         case READ_16:
  650         case WRITE_6:
  651         case WRITE_10:
  652         case WRITE_16:
  653         case 0x13:
  654         case 0x2f:
  655         {
  656                 int error;
  657 
  658                 pCmd = ldm_alloc_cmds(vbus, vd->cmds_per_request);
  659                 if(!pCmd){
  660                         KdPrint(("Failed to allocate command!"));
  661                         ccb->ccb_h.status = CAM_BUSY;
  662                         break;
  663                 }
  664 
  665                 switch (cdb[0]) {
  666                 case READ_6:
  667                 case WRITE_6:
  668                 case 0x13:
  669                         pCmd->uCmd.Ide.Lba =  ((HPT_U32)cdb[1] << 16) | ((HPT_U32)cdb[2] << 8) | (HPT_U32)cdb[3];
  670                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[4];
  671                         break;
  672                 case READ_16:
  673                 case WRITE_16: 
  674                 {
  675                         HPT_U64 block =
  676                                 ((HPT_U64)cdb[2]<<56) |
  677                                 ((HPT_U64)cdb[3]<<48) |
  678                                 ((HPT_U64)cdb[4]<<40) |
  679                                 ((HPT_U64)cdb[5]<<32) |
  680                                 ((HPT_U64)cdb[6]<<24) |
  681                                 ((HPT_U64)cdb[7]<<16) |
  682                                 ((HPT_U64)cdb[8]<<8) |
  683                                 ((HPT_U64)cdb[9]);
  684                         pCmd->uCmd.Ide.Lba = block;
  685                         pCmd->uCmd.Ide.nSectors = (HPT_U16)cdb[13] | ((HPT_U16)cdb[12]<<8);
  686                         break;
  687                 }
  688                 
  689                 default:
  690                         pCmd->uCmd.Ide.Lba = (HPT_U32)cdb[5] | ((HPT_U32)cdb[4] << 8) | ((HPT_U32)cdb[3] << 16) | ((HPT_U32)cdb[2] << 24);
  691                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[8] | ((HPT_U16)cdb[7]<<8);
  692                         break;
  693                 }
  694                 
  695                 switch (cdb[0]) {
  696                 case READ_6:
  697                 case READ_10:
  698                 case READ_16:
  699                         pCmd->flags.data_in = 1;
  700                         break;
  701                 case WRITE_6:
  702                 case WRITE_10:
  703                 case WRITE_16:
  704                         pCmd->flags.data_out = 1;
  705                         break;
  706                 }
  707                 pCmd->priv = ext = cmdext_get(vbus_ext);
  708                 HPT_ASSERT(ext);
  709                 ext->ccb = ccb;
  710                 pCmd->target = vd;
  711                 pCmd->done = os_cmddone;
  712                 pCmd->buildsgl = os_buildsgl;
  713                 pCmd->psg = ext->psg;
  714                 pCmd->flags.physical_sg = 1;
  715                 error = bus_dmamap_load_ccb(vbus_ext->io_dmat, 
  716                                         ext->dma_map, 
  717                                         ccb,
  718                                         hpt_io_dmamap_callback, pCmd,
  719                                         BUS_DMA_WAITOK
  720                                         );
  721                 KdPrint(("bus_dmamap_load return %d", error));
  722                 if (error && error!=EINPROGRESS) {
  723                         os_printk("bus_dmamap_load error %d", error);
  724                         cmdext_put(ext);
  725                         ldm_free_cmds(pCmd);
  726                         ccb->ccb_h.status = CAM_REQ_CMP_ERR;
  727                         xpt_done(ccb);
  728                 }
  729                 return;
  730         }
  731 
  732         default:
  733                 ccb->ccb_h.status = CAM_REQ_INVALID;
  734                 break;
  735         }
  736 
  737         xpt_done(ccb);
  738         return;
  739 }
  740 
  741 static void hpt_action(struct cam_sim *sim, union ccb *ccb)
  742 {
  743         PVBUS_EXT vbus_ext = (PVBUS_EXT)cam_sim_softc(sim);
  744 
  745         KdPrint(("hpt_action(fn=%d, id=%d)", ccb->ccb_h.func_code, ccb->ccb_h.target_id));
  746 
  747         switch (ccb->ccb_h.func_code) {
  748         
  749         case XPT_SCSI_IO:
  750                 hpt_lock_vbus(vbus_ext);
  751                 hpt_scsi_io(vbus_ext, ccb);
  752                 hpt_unlock_vbus(vbus_ext);
  753                 return;
  754 
  755         case XPT_RESET_BUS:
  756                 hpt_lock_vbus(vbus_ext);
  757                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
  758                 hpt_unlock_vbus(vbus_ext);
  759                 break;
  760 
  761         case XPT_GET_TRAN_SETTINGS:
  762         case XPT_SET_TRAN_SETTINGS:
  763                 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
  764                 break;
  765 
  766         case XPT_CALC_GEOMETRY:
  767 #if __FreeBSD_version >= 500000
  768                 cam_calc_geometry(&ccb->ccg, 1);
  769 #else
  770                 ccb->ccg.heads = 255;
  771                 ccb->ccg.secs_per_track = 63;
  772                 ccb->ccg.cylinders = ccb->ccg.volume_size / (ccb->ccg.heads * ccb->ccg.secs_per_track);
  773                 ccb->ccb_h.status = CAM_REQ_CMP;
  774 #endif
  775                 break;
  776 
  777         case XPT_PATH_INQ:
  778         {
  779                 struct ccb_pathinq *cpi = &ccb->cpi;
  780 
  781                 cpi->version_num = 1;
  782                 cpi->hba_inquiry = PI_SDTR_ABLE;
  783                 cpi->target_sprt = 0;
  784                 cpi->hba_misc = PIM_NOBUSRESET;
  785                 cpi->hba_eng_cnt = 0;
  786                 cpi->max_target = osm_max_targets;
  787                 cpi->max_lun = 0;
  788                 cpi->unit_number = cam_sim_unit(sim);
  789                 cpi->bus_id = cam_sim_bus(sim);
  790                 cpi->initiator_id = osm_max_targets;
  791                 cpi->base_transfer_speed = 3300;
  792 
  793                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
  794                 strncpy(cpi->hba_vid, "HPT   ", HBA_IDLEN);
  795                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
  796                 cpi->transport = XPORT_SPI;
  797                 cpi->transport_version = 2;
  798                 cpi->protocol = PROTO_SCSI;
  799                 cpi->protocol_version = SCSI_REV_2;
  800                 cpi->ccb_h.status = CAM_REQ_CMP;
  801                 break;
  802         }
  803 
  804         default:
  805                 ccb->ccb_h.status = CAM_REQ_INVALID;
  806                 break;
  807         }
  808 
  809         xpt_done(ccb);
  810         return;
  811 }
  812 
  813 static void hpt_pci_intr(void *arg)
  814 {       
  815         PVBUS_EXT vbus_ext = (PVBUS_EXT)arg;
  816         hpt_lock_vbus(vbus_ext);
  817         ldm_intr((PVBUS)vbus_ext->vbus);
  818         hpt_unlock_vbus(vbus_ext);
  819 }
  820 
  821 static void hpt_poll(struct cam_sim *sim)
  822 {
  823         hpt_pci_intr(cam_sim_softc(sim));
  824 }
  825 
  826 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg)
  827 {
  828         KdPrint(("hpt_async"));
  829 }
  830 
  831 static int hpt_shutdown(device_t dev)
  832 {
  833         KdPrint(("hpt_shutdown(dev=%p)", dev));
  834         return 0;
  835 }
  836 
  837 static int hpt_detach(device_t dev)
  838 {
  839         /* we don't allow the driver to be unloaded. */
  840         return EBUSY;
  841 }
  842 
  843 static void hpt_ioctl_done(struct _IOCTL_ARG *arg)
  844 {
  845         arg->ioctl_cmnd = 0;
  846         wakeup(arg);
  847 }
  848 
  849 static void __hpt_do_ioctl(PVBUS_EXT vbus_ext, IOCTL_ARG *ioctl_args)
  850 {
  851         ioctl_args->result = -1;
  852         ioctl_args->done = hpt_ioctl_done;
  853         ioctl_args->ioctl_cmnd = (void *)1;
  854 
  855         hpt_lock_vbus(vbus_ext);
  856         ldm_ioctl((PVBUS)vbus_ext->vbus, ioctl_args);
  857 
  858         while (ioctl_args->ioctl_cmnd) {
  859                 if (hpt_sleep(vbus_ext, ioctl_args, PPAUSE, "hptctl", HPT_OSM_TIMEOUT)==0)
  860                         break;
  861                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
  862                 __hpt_do_tasks(vbus_ext);
  863         }
  864 
  865         /* KdPrint(("ioctl %x result %d", ioctl_args->dwIoControlCode, ioctl_args->result)); */
  866 
  867         hpt_unlock_vbus(vbus_ext);
  868 }
  869 
  870 static void hpt_do_ioctl(IOCTL_ARG *ioctl_args)
  871 {
  872         PVBUS vbus;
  873         PVBUS_EXT vbus_ext;
  874         
  875         ldm_for_each_vbus(vbus, vbus_ext) {
  876                 __hpt_do_ioctl(vbus_ext, ioctl_args);
  877                 if (ioctl_args->result!=HPT_IOCTL_RESULT_WRONG_VBUS)
  878                         return;
  879         }
  880 }
  881 
  882 #define HPT_DO_IOCTL(code, inbuf, insize, outbuf, outsize) ({\
  883         IOCTL_ARG arg;\
  884         arg.dwIoControlCode = code;\
  885         arg.lpInBuffer = inbuf;\
  886         arg.lpOutBuffer = outbuf;\
  887         arg.nInBufferSize = insize;\
  888         arg.nOutBufferSize = outsize;\
  889         arg.lpBytesReturned = 0;\
  890         hpt_do_ioctl(&arg);\
  891         arg.result;\
  892 })
  893 
  894 #define DEVICEID_VALID(id) ((id) && ((HPT_U32)(id)!=0xffffffff))
  895 
  896 static int hpt_get_logical_devices(DEVICEID * pIds, int nMaxCount)
  897 {
  898         int i;
  899         HPT_U32 count = nMaxCount-1;
  900         
  901         if (HPT_DO_IOCTL(HPT_IOCTL_GET_LOGICAL_DEVICES,
  902                         &count, sizeof(HPT_U32), pIds, sizeof(DEVICEID)*nMaxCount))
  903                 return -1;
  904 
  905         nMaxCount = (int)pIds[0];
  906         for (i=0; i<nMaxCount; i++) pIds[i] = pIds[i+1];
  907         return nMaxCount;
  908 }
  909 
  910 static int hpt_get_device_info_v3(DEVICEID id, PLOGICAL_DEVICE_INFO_V3 pInfo)
  911 {
  912         return HPT_DO_IOCTL(HPT_IOCTL_GET_DEVICE_INFO_V3,
  913                                 &id, sizeof(DEVICEID), pInfo, sizeof(LOGICAL_DEVICE_INFO_V3));
  914 }
  915 
  916 /* not belong to this file logically, but we want to use ioctl interface */
  917 static int __hpt_stop_tasks(PVBUS_EXT vbus_ext, DEVICEID id)
  918 {
  919         LOGICAL_DEVICE_INFO_V3 devinfo;
  920         int i, result;
  921         DEVICEID param[2] = { id, 0 };
  922         
  923         if (hpt_get_device_info_v3(id, &devinfo))
  924                 return -1;
  925                 
  926         if (devinfo.Type!=LDT_ARRAY)
  927                 return -1;
  928                 
  929         if (devinfo.u.array.Flags & ARRAY_FLAG_REBUILDING)
  930                 param[1] = AS_REBUILD_ABORT;
  931         else if (devinfo.u.array.Flags & ARRAY_FLAG_VERIFYING)
  932                 param[1] = AS_VERIFY_ABORT;
  933         else if (devinfo.u.array.Flags & ARRAY_FLAG_INITIALIZING)
  934                 param[1] = AS_INITIALIZE_ABORT;
  935         else if (devinfo.u.array.Flags & ARRAY_FLAG_TRANSFORMING)
  936                 param[1] = AS_TRANSFORM_ABORT;
  937         else
  938                 return -1;
  939 
  940         KdPrint(("SET_ARRAY_STATE(%x, %d)", param[0], param[1]));
  941         result = HPT_DO_IOCTL(HPT_IOCTL_SET_ARRAY_STATE,
  942                                 param, sizeof(param), 0, 0);
  943                                 
  944         for (i=0; i<devinfo.u.array.nDisk; i++)
  945                 if (DEVICEID_VALID(devinfo.u.array.Members[i]))
  946                         __hpt_stop_tasks(vbus_ext, devinfo.u.array.Members[i]);
  947                         
  948         return result;
  949 }
  950 
  951 static void hpt_stop_tasks(PVBUS_EXT vbus_ext)
  952 {
  953         DEVICEID ids[32];
  954         int i, count;
  955 
  956         count = hpt_get_logical_devices((DEVICEID *)&ids, sizeof(ids)/sizeof(ids[0]));
  957         
  958         for (i=0; i<count; i++)
  959                 __hpt_stop_tasks(vbus_ext, ids[i]);
  960 }
  961 
  962 static  d_open_t        hpt_open;
  963 static  d_close_t       hpt_close;
  964 static  d_ioctl_t       hpt_ioctl;
  965 static  int             hpt_rescan_bus(void);
  966 
  967 static struct cdevsw hpt_cdevsw = {
  968         .d_open =       hpt_open,
  969         .d_close =      hpt_close,
  970         .d_ioctl =      hpt_ioctl,
  971         .d_name =       driver_name,
  972 #if __FreeBSD_version>=503000
  973         .d_version =    D_VERSION,
  974 #endif
  975 #if (__FreeBSD_version>=503000 && __FreeBSD_version<600034)
  976         .d_flags =      D_NEEDGIANT,
  977 #endif
  978 #if __FreeBSD_version<600034
  979 #if __FreeBSD_version>501000
  980         .d_maj =        MAJOR_AUTO,
  981 #else 
  982         .d_maj = HPT_DEV_MAJOR,
  983 #endif
  984 #endif
  985 };
  986 
  987 static struct intr_config_hook hpt_ich;
  988 
  989 /*
  990  * hpt_final_init will be called after all hpt_attach.
  991  */
  992 static void hpt_final_init(void *dummy)
  993 {
  994         int       i;
  995         PVBUS_EXT vbus_ext;
  996         PVBUS vbus;
  997         PHBA hba;
  998 
  999         /* Clear the config hook */
 1000         config_intrhook_disestablish(&hpt_ich);
 1001 
 1002         /* allocate memory */
 1003         i = 0;
 1004         ldm_for_each_vbus(vbus, vbus_ext) {
 1005                 if (hpt_alloc_mem(vbus_ext)) {
 1006                         os_printk("out of memory");
 1007                         return;
 1008                 }
 1009                 i++;
 1010         }
 1011 
 1012         if (!i) {
 1013                 if (bootverbose)
 1014                         os_printk("no controller detected.");
 1015                 return;
 1016         }
 1017 
 1018         /* initializing hardware */
 1019         ldm_for_each_vbus(vbus, vbus_ext) {
 1020                 /* make timer available here */
 1021                 callout_handle_init(&vbus_ext->timer);
 1022                 if (hpt_init_vbus(vbus_ext)) {
 1023                         os_printk("fail to initialize hardware");
 1024                         break; /* FIXME */
 1025                 }
 1026         }
 1027 
 1028         /* register CAM interface */
 1029         ldm_for_each_vbus(vbus, vbus_ext) {
 1030                 struct cam_devq *devq;
 1031                 struct ccb_setasync     ccb;
 1032                 
 1033 #if (__FreeBSD_version >= 500000)
 1034                 mtx_init(&vbus_ext->lock, "hptsleeplock", NULL, MTX_DEF);
 1035 #endif
 1036                 if (bus_dma_tag_create(NULL,/* parent */
 1037                                 4,      /* alignment */
 1038                                 BUS_SPACE_MAXADDR_32BIT+1, /* boundary */
 1039                                 BUS_SPACE_MAXADDR,      /* lowaddr */
 1040                                 BUS_SPACE_MAXADDR,      /* highaddr */
 1041                                 NULL, NULL,             /* filter, filterarg */
 1042                                 PAGE_SIZE * (os_max_sg_descriptors-1),  /* maxsize */
 1043                                 os_max_sg_descriptors,  /* nsegments */
 1044                                 0x10000,        /* maxsegsize */
 1045                                 BUS_DMA_WAITOK,         /* flags */
 1046 #if __FreeBSD_version>502000
 1047                                 busdma_lock_mutex,      /* lockfunc */
 1048                                 &vbus_ext->lock,                /* lockfuncarg */
 1049 #endif
 1050                                 &vbus_ext->io_dmat      /* tag */))
 1051                 {
 1052                         return ;
 1053                 }
 1054 
 1055                 for (i=0; i<os_max_queue_comm; i++) {
 1056                         POS_CMDEXT ext = (POS_CMDEXT)malloc(sizeof(OS_CMDEXT), M_DEVBUF, M_WAITOK);
 1057                         if (!ext) {
 1058                                 os_printk("Can't alloc cmdext(%d)", i);
 1059                                 return ;
 1060                         }
 1061                         ext->vbus_ext = vbus_ext;
 1062                         ext->next = vbus_ext->cmdext_list;
 1063                         vbus_ext->cmdext_list = ext;
 1064         
 1065                         if (bus_dmamap_create(vbus_ext->io_dmat, 0, &ext->dma_map)) {
 1066                                 os_printk("Can't create dma map(%d)", i);
 1067                                 return ;
 1068                         }
 1069                 }
 1070 
 1071                 if ((devq = cam_simq_alloc(os_max_queue_comm)) == NULL) {
 1072                         os_printk("cam_simq_alloc failed");
 1073                         return ;
 1074                 }
 1075 
 1076 #if __FreeBSD_version > 700025
 1077                 vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name,
 1078                                 vbus_ext, 0, &Giant, os_max_queue_comm, /*tagged*/8,  devq);
 1079 #else
 1080                 vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name,
 1081                                 vbus_ext, 0, os_max_queue_comm, /*tagged*/8,  devq);
 1082 #endif
 1083                                 
 1084                 if (!vbus_ext->sim) {
 1085                         os_printk("cam_sim_alloc failed");
 1086                         cam_simq_free(devq);
 1087                         return ;
 1088                 }
 1089 
 1090 #if __FreeBSD_version > 700044
 1091                 if (xpt_bus_register(vbus_ext->sim, NULL, 0) != CAM_SUCCESS) {
 1092 #else
 1093                 if (xpt_bus_register(vbus_ext->sim, 0) != CAM_SUCCESS) {
 1094 #endif
 1095                         os_printk("xpt_bus_register failed");
 1096                         cam_sim_free(vbus_ext->sim, /*free devq*/ TRUE);
 1097                         vbus_ext->sim = NULL;
 1098                         return ;
 1099                 }
 1100         
 1101                 if (xpt_create_path(&vbus_ext->path, /*periph */ NULL,
 1102                                 cam_sim_path(vbus_ext->sim), CAM_TARGET_WILDCARD,
 1103                                 CAM_LUN_WILDCARD) != CAM_REQ_CMP)
 1104                 {
 1105                         os_printk("xpt_create_path failed");
 1106                         xpt_bus_deregister(cam_sim_path(vbus_ext->sim));
 1107                         cam_sim_free(vbus_ext->sim, /*free_devq*/TRUE);
 1108                         vbus_ext->sim = NULL;
 1109                         return ;
 1110                 }
 1111 
 1112                 xpt_setup_ccb(&ccb.ccb_h, vbus_ext->path, /*priority*/5);
 1113                 ccb.ccb_h.func_code = XPT_SASYNC_CB;
 1114                 ccb.event_enable = AC_LOST_DEVICE;
 1115                 ccb.callback = hpt_async;
 1116                 ccb.callback_arg = vbus_ext;
 1117                 xpt_action((union ccb *)&ccb);
 1118 
 1119                 for (hba = vbus_ext->hba_list; hba; hba = hba->next) {
 1120                         int rid = 0;
 1121                         if ((hba->irq_res = bus_alloc_resource(hba->pcidev,
 1122                                 SYS_RES_IRQ, &rid, 0, ~0ul, 1, RF_SHAREABLE | RF_ACTIVE)) == NULL)
 1123                         {
 1124                                 os_printk("can't allocate interrupt");
 1125                                 return ;
 1126                         }
 1127                         
 1128                         if (bus_setup_intr(hba->pcidev, hba->irq_res, INTR_TYPE_CAM,
 1129 #if __FreeBSD_version > 700025
 1130                                 NULL, hpt_pci_intr, vbus_ext, &hba->irq_handle)) 
 1131 #else
 1132                                 hpt_pci_intr, vbus_ext, &hba->irq_handle)) 
 1133 #endif
 1134                         {
 1135                                 os_printk("can't set up interrupt");
 1136                                 return ;
 1137                         }
 1138                         hba->ldm_adapter.him->intr_control(hba->ldm_adapter.him_handle, HPT_TRUE);
 1139                 }
 1140 
 1141                 vbus_ext->shutdown_eh = EVENTHANDLER_REGISTER(shutdown_final, 
 1142                                                                         hpt_shutdown_vbus, vbus_ext, SHUTDOWN_PRI_DEFAULT);
 1143                 if (!vbus_ext->shutdown_eh)
 1144                         os_printk("Shutdown event registration failed");
 1145         }
 1146         
 1147         ldm_for_each_vbus(vbus, vbus_ext) {
 1148                 TASK_INIT(&vbus_ext->worker, 0, (task_fn_t *)hpt_do_tasks, vbus_ext);
 1149                 if (vbus_ext->tasks)
 1150                         TASK_ENQUEUE(&vbus_ext->worker);
 1151         }       
 1152 
 1153         make_dev(&hpt_cdevsw, DRIVER_MINOR, UID_ROOT, GID_OPERATOR,
 1154             S_IRUSR | S_IWUSR, "%s", driver_name);
 1155 }
 1156 
 1157 #if defined(KLD_MODULE) && (__FreeBSD_version >= 503000)
 1158 
 1159 typedef struct driverlink *driverlink_t;
 1160 struct driverlink {
 1161         kobj_class_t    driver;
 1162         TAILQ_ENTRY(driverlink) link;   /* list of drivers in devclass */
 1163 };
 1164 
 1165 typedef TAILQ_HEAD(driver_list, driverlink) driver_list_t;
 1166 
 1167 struct devclass {
 1168         TAILQ_ENTRY(devclass) link;
 1169         devclass_t      parent;         /* parent in devclass hierarchy */
 1170         driver_list_t   drivers;     /* bus devclasses store drivers for bus */
 1171         char            *name;
 1172         device_t        *devices;       /* array of devices indexed by unit */
 1173         int             maxunit;        /* size of devices array */
 1174 };
 1175 
 1176 static void override_kernel_driver(void)
 1177 {
 1178         driverlink_t dl, dlfirst;
 1179         driver_t *tmpdriver;
 1180         devclass_t dc = devclass_find("pci");
 1181         
 1182         if (dc){
 1183                 dlfirst = TAILQ_FIRST(&dc->drivers);
 1184                 for (dl = dlfirst; dl; dl = TAILQ_NEXT(dl, link)) {
 1185                         if(strcmp(dl->driver->name, driver_name) == 0) {
 1186                                 tmpdriver=dl->driver;
 1187                                 dl->driver=dlfirst->driver;
 1188                                 dlfirst->driver=tmpdriver;
 1189                                 break;
 1190                         }
 1191                 }
 1192         }
 1193 }
 1194 
 1195 #else 
 1196 #define override_kernel_driver()
 1197 #endif
 1198 
 1199 static void hpt_init(void *dummy)
 1200 {
 1201         if (bootverbose)
 1202                 os_printk("%s %s", driver_name_long, driver_ver);
 1203 
 1204         override_kernel_driver();
 1205         init_config();
 1206 
 1207         hpt_ich.ich_func = hpt_final_init;
 1208         hpt_ich.ich_arg = NULL;
 1209         if (config_intrhook_establish(&hpt_ich) != 0) {
 1210                 printf("%s: cannot establish configuration hook\n",
 1211                     driver_name_long);
 1212         }
 1213 
 1214 }
 1215 SYSINIT(hptinit, SI_SUB_CONFIGURE, SI_ORDER_FIRST, hpt_init, NULL);
 1216 
 1217 /*
 1218  * CAM driver interface
 1219  */
 1220 static device_method_t driver_methods[] = {
 1221         /* Device interface */
 1222         DEVMETHOD(device_probe,         hpt_probe),
 1223         DEVMETHOD(device_attach,        hpt_attach),
 1224         DEVMETHOD(device_detach,        hpt_detach),
 1225         DEVMETHOD(device_shutdown,      hpt_shutdown),
 1226         DEVMETHOD_END
 1227 };
 1228 
 1229 static driver_t hpt_pci_driver = {
 1230         driver_name,
 1231         driver_methods,
 1232         sizeof(HBA)
 1233 };
 1234 
 1235 static devclass_t       hpt_devclass;
 1236 
 1237 #ifndef TARGETNAME
 1238 #error "no TARGETNAME found"
 1239 #endif
 1240 
 1241 /* use this to make TARGETNAME be expanded */
 1242 #define __DRIVER_MODULE(p1, p2, p3, p4, p5, p6) DRIVER_MODULE(p1, p2, p3, p4, p5, p6)
 1243 #define __MODULE_VERSION(p1, p2) MODULE_VERSION(p1, p2)
 1244 #define __MODULE_DEPEND(p1, p2, p3, p4, p5) MODULE_DEPEND(p1, p2, p3, p4, p5)
 1245 __DRIVER_MODULE(TARGETNAME, pci, hpt_pci_driver, hpt_devclass, 0, 0);
 1246 __MODULE_VERSION(TARGETNAME, 1);
 1247 __MODULE_DEPEND(TARGETNAME, cam, 1, 1, 1);
 1248 
 1249 #if __FreeBSD_version>503000
 1250 typedef struct cdev * ioctl_dev_t;
 1251 #else 
 1252 typedef dev_t ioctl_dev_t;
 1253 #endif
 1254 
 1255 #if __FreeBSD_version >= 500000
 1256 typedef struct thread * ioctl_thread_t;
 1257 #else 
 1258 typedef struct proc *   ioctl_thread_t;
 1259 #endif
 1260 
 1261 static int hpt_open(ioctl_dev_t dev, int flags, int devtype, ioctl_thread_t td)
 1262 {
 1263         return 0;
 1264 }
 1265 
 1266 static int hpt_close(ioctl_dev_t dev, int flags, int devtype, ioctl_thread_t td)
 1267 {
 1268         return 0;
 1269 }
 1270 
 1271 static int hpt_ioctl(ioctl_dev_t dev, u_long cmd, caddr_t data, int fflag, ioctl_thread_t td)
 1272 {
 1273         PHPT_IOCTL_PARAM piop=(PHPT_IOCTL_PARAM)data;
 1274         IOCTL_ARG ioctl_args;
 1275         HPT_U32 bytesReturned;
 1276 
 1277         switch (cmd){
 1278         case HPT_DO_IOCONTROL:
 1279         {       
 1280                 if (piop->Magic == HPT_IOCTL_MAGIC || piop->Magic == HPT_IOCTL_MAGIC32) {
 1281                         KdPrint(("ioctl=%x in=%p len=%d out=%p len=%d\n",
 1282                                 piop->dwIoControlCode,
 1283                                 piop->lpInBuffer,
 1284                                 piop->nInBufferSize,
 1285                                 piop->lpOutBuffer,
 1286                                 piop->nOutBufferSize));
 1287                         
 1288                 memset(&ioctl_args, 0, sizeof(ioctl_args));
 1289                 
 1290                 ioctl_args.dwIoControlCode = piop->dwIoControlCode;
 1291                 ioctl_args.nInBufferSize = piop->nInBufferSize;
 1292                 ioctl_args.nOutBufferSize = piop->nOutBufferSize;
 1293                 ioctl_args.lpBytesReturned = &bytesReturned;
 1294 
 1295                 if (ioctl_args.nInBufferSize) {
 1296                         ioctl_args.lpInBuffer = malloc(ioctl_args.nInBufferSize, M_DEVBUF, M_WAITOK);
 1297                         if (!ioctl_args.lpInBuffer)
 1298                                 goto invalid;
 1299                         if (copyin((void*)piop->lpInBuffer,
 1300                                         ioctl_args.lpInBuffer, piop->nInBufferSize))
 1301                                 goto invalid;
 1302                 }
 1303         
 1304                 if (ioctl_args.nOutBufferSize) {
 1305                         ioctl_args.lpOutBuffer = malloc(ioctl_args.nOutBufferSize, M_DEVBUF, M_WAITOK);
 1306                         if (!ioctl_args.lpOutBuffer)
 1307                                 goto invalid;
 1308                 }
 1309                 
 1310 #if (__FreeBSD_version >= 500000)
 1311                 mtx_lock(&Giant);
 1312 #endif
 1313 
 1314                 hpt_do_ioctl(&ioctl_args);
 1315         
 1316 #if (__FreeBSD_version >= 500000)
 1317                 mtx_unlock(&Giant);
 1318 #endif
 1319 
 1320                 if (ioctl_args.result==HPT_IOCTL_RESULT_OK) {
 1321                         if (piop->nOutBufferSize) {
 1322                                 if (copyout(ioctl_args.lpOutBuffer,
 1323                                         (void*)piop->lpOutBuffer, piop->nOutBufferSize))
 1324                                         goto invalid;
 1325                         }
 1326                         if (piop->lpBytesReturned) {
 1327                                 if (copyout(&bytesReturned,
 1328                                         (void*)piop->lpBytesReturned, sizeof(HPT_U32)))
 1329                                         goto invalid;
 1330                         }
 1331                         if (ioctl_args.lpInBuffer) free(ioctl_args.lpInBuffer, M_DEVBUF);
 1332                         if (ioctl_args.lpOutBuffer) free(ioctl_args.lpOutBuffer, M_DEVBUF);
 1333                         return 0;
 1334                 }
 1335 invalid:
 1336                 if (ioctl_args.lpInBuffer) free(ioctl_args.lpInBuffer, M_DEVBUF);
 1337                 if (ioctl_args.lpOutBuffer) free(ioctl_args.lpOutBuffer, M_DEVBUF);
 1338                 return EFAULT;
 1339         }
 1340         return EFAULT;
 1341         }
 1342 
 1343         case HPT_SCAN_BUS:
 1344         {
 1345                 return hpt_rescan_bus();
 1346         }
 1347         default:
 1348                 KdPrint(("invalid command!"));
 1349                 return EFAULT;
 1350         }       
 1351 
 1352 }
 1353 
 1354 static int      hpt_rescan_bus(void)
 1355 {
 1356         union ccb                       *ccb;
 1357         PVBUS                           vbus;
 1358         PVBUS_EXT                       vbus_ext;       
 1359                 
 1360 #if (__FreeBSD_version >= 500000)
 1361         mtx_lock(&Giant);
 1362 #endif
 1363 
 1364         ldm_for_each_vbus(vbus, vbus_ext) {
 1365                 if ((ccb = xpt_alloc_ccb()) == NULL)
 1366                         return(ENOMEM);
 1367                 if (xpt_create_path(&ccb->ccb_h.path, NULL,
 1368                     cam_sim_path(vbus_ext->sim),
 1369                     CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
 1370                         xpt_free_ccb(ccb);
 1371                         return(EIO);
 1372                 }
 1373                 xpt_rescan(ccb);
 1374         }
 1375         
 1376 #if (__FreeBSD_version >= 500000)
 1377         mtx_unlock(&Giant);
 1378 #endif
 1379 
 1380         return(0);      
 1381 }

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