The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: 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  * $FreeBSD: stable/7/sys/dev/hptrr/hptrr_osm_bsd.c 237863 2012-07-01 00:40:56Z eadler $
   27  */
   28 #include <dev/hptrr/hptrr_config.h>
   29 /* $Id: osm_bsd.c,v 1.27 2007/11/22 07:35:49 gmm Exp $
   30  *
   31  * HighPoint RAID Driver for FreeBSD
   32  * Copyright (C) 2005 HighPoint Technologies, Inc. All Rights Reserved.
   33  */
   34 #include <dev/hptrr/os_bsd.h>
   35 #include <dev/hptrr/hptintf.h>
   36 
   37 static int attach_generic = 0;
   38 TUNABLE_INT("hw.hptrr.attach_generic", &attach_generic);
   39 
   40 static int hpt_probe(device_t dev)
   41 {
   42         PCI_ID pci_id;
   43         HIM *him;
   44         int i;
   45         PHBA hba;
   46 
   47         /* Some of supported chips are used not only by HPT. */
   48         if (pci_get_vendor(dev) != 0x1103 && !attach_generic)
   49                 return (ENXIO);
   50         for (him = him_list; him; him = him->next) {
   51                 for (i=0; him->get_supported_device_id(i, &pci_id); i++) {
   52                         if ((pci_get_vendor(dev) == pci_id.vid) &&
   53                                 (pci_get_device(dev) == pci_id.did)){
   54                                 KdPrint(("hpt_probe: adapter at PCI %d:%d:%d, IRQ %d",
   55                                         pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev), pci_get_irq(dev)
   56                                 ));
   57                                 device_set_desc(dev, him->name);
   58                                 hba = (PHBA)device_get_softc(dev);
   59                                 memset(hba, 0, sizeof(HBA));
   60                                 hba->ext_type = EXT_TYPE_HBA;
   61                                 hba->ldm_adapter.him = him;
   62                                 return 0;
   63                         }
   64                 }
   65         }
   66 
   67         return (ENXIO);
   68 }
   69 
   70 static int hpt_attach(device_t dev)
   71 {
   72         PHBA hba = (PHBA)device_get_softc(dev);
   73         HIM *him = hba->ldm_adapter.him;
   74         PCI_ID pci_id;
   75         HPT_UINT size;
   76         PVBUS vbus;
   77         PVBUS_EXT vbus_ext;
   78         
   79         KdPrint(("hpt_attach(%d/%d/%d)", pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev)));
   80         
   81 #if __FreeBSD_version >=440000
   82         pci_enable_busmaster(dev);
   83 #endif
   84 
   85         pci_id.vid = pci_get_vendor(dev);
   86         pci_id.did = pci_get_device(dev);
   87         pci_id.rev = pci_get_revid(dev);
   88 
   89         size = him->get_adapter_size(&pci_id);
   90         hba->ldm_adapter.him_handle = malloc(size, M_DEVBUF, M_WAITOK);
   91         if (!hba->ldm_adapter.him_handle)
   92                 return ENXIO;
   93 
   94         hba->pcidev = dev;
   95         hba->pciaddr.tree = 0;
   96         hba->pciaddr.bus = pci_get_bus(dev);
   97         hba->pciaddr.device = pci_get_slot(dev);
   98         hba->pciaddr.function = pci_get_function(dev);
   99 
  100         if (!him->create_adapter(&pci_id, hba->pciaddr, hba->ldm_adapter.him_handle, hba)) {
  101                 free(hba->ldm_adapter.him_handle, M_DEVBUF);
  102                 return -1;
  103         }
  104 
  105         os_printk("adapter at PCI %d:%d:%d, IRQ %d",
  106                 hba->pciaddr.bus, hba->pciaddr.device, hba->pciaddr.function, pci_get_irq(dev));
  107 
  108         if (!ldm_register_adapter(&hba->ldm_adapter)) {
  109                 size = ldm_get_vbus_size();
  110                 vbus_ext = malloc(sizeof(VBUS_EXT) + size, M_DEVBUF, M_WAITOK);
  111                 if (!vbus_ext) {
  112                         free(hba->ldm_adapter.him_handle, M_DEVBUF);
  113                         return -1;
  114                 }
  115                 memset(vbus_ext, 0, sizeof(VBUS_EXT));
  116                 vbus_ext->ext_type = EXT_TYPE_VBUS;
  117                 ldm_create_vbus((PVBUS)vbus_ext->vbus, vbus_ext);
  118                 ldm_register_adapter(&hba->ldm_adapter);
  119         }
  120 
  121         ldm_for_each_vbus(vbus, vbus_ext) {
  122                 if (hba->ldm_adapter.vbus==vbus) {
  123                         hba->vbus_ext = vbus_ext;
  124                         hba->next = vbus_ext->hba_list;
  125                         vbus_ext->hba_list = hba;
  126                         break;
  127                 }
  128         }       
  129         return 0;
  130 }
  131 
  132 /*
  133  * Maybe we'd better to use the bus_dmamem_alloc to alloc DMA memory,
  134  * but there are some problems currently (alignment, etc).
  135  */
  136 static __inline void *__get_free_pages(int order)
  137 {
  138         /* don't use low memory - other devices may get starved */
  139         return contigmalloc(PAGE_SIZE<<order, 
  140                         M_DEVBUF, M_WAITOK, BUS_SPACE_MAXADDR_24BIT, BUS_SPACE_MAXADDR, PAGE_SIZE, 0);
  141 }
  142 
  143 static __inline void free_pages(void *p, int order)
  144 {
  145         contigfree(p, PAGE_SIZE<<order, M_DEVBUF);
  146 }
  147 
  148 static int hpt_alloc_mem(PVBUS_EXT vbus_ext)
  149 {
  150         PHBA hba;
  151         struct freelist *f;
  152         HPT_UINT i;
  153         void **p;
  154 
  155         for (hba = vbus_ext->hba_list; hba; hba = hba->next)
  156                 hba->ldm_adapter.him->get_meminfo(hba->ldm_adapter.him_handle);
  157 
  158         ldm_get_mem_info((PVBUS)vbus_ext->vbus, 0);
  159 
  160         for (f=vbus_ext->freelist_head; f; f=f->next) {
  161                 KdPrint(("%s: %d*%d=%d bytes",
  162                         f->tag, f->count, f->size, f->count*f->size));
  163                 for (i=0; i<f->count; i++) {
  164                         p = (void **)malloc(f->size, M_DEVBUF, M_WAITOK);
  165                         if (!p) return (ENXIO);
  166                         *p = f->head;
  167                         f->head = p;
  168                 }
  169         }
  170 
  171         for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
  172                 int order, size, j;
  173 
  174                 HPT_ASSERT((f->size & (f->alignment-1))==0);
  175 
  176                 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ;
  177 
  178                 KdPrint(("%s: %d*%d=%d bytes, order %d",
  179                         f->tag, f->count, f->size, f->count*f->size, order));
  180                 HPT_ASSERT(f->alignment<=PAGE_SIZE);
  181 
  182                 for (i=0; i<f->count;) {
  183                         p = (void **)__get_free_pages(order);
  184                         if (!p) return -1;
  185                         for (j = size/f->size; j && i<f->count; i++,j--) {
  186                                 *p = f->head;
  187                                 *(BUS_ADDRESS *)(p+1) = (BUS_ADDRESS)vtophys(p);
  188                                 f->head = p;
  189                                 p = (void **)((unsigned long)p + f->size);
  190                         }
  191                 }
  192         }
  193         
  194         HPT_ASSERT(PAGE_SIZE==DMAPOOL_PAGE_SIZE);
  195 
  196         for (i=0; i<os_max_cache_pages; i++) {
  197                 p = (void **)__get_free_pages(0);
  198                 if (!p) return -1;
  199                 HPT_ASSERT(((HPT_UPTR)p & (DMAPOOL_PAGE_SIZE-1))==0);
  200                 dmapool_put_page((PVBUS)vbus_ext->vbus, p, (BUS_ADDRESS)vtophys(p));
  201         }
  202 
  203         return 0;
  204 }
  205 
  206 static void hpt_free_mem(PVBUS_EXT vbus_ext)
  207 {
  208         struct freelist *f;
  209         void *p;
  210         int i;
  211         BUS_ADDRESS bus;
  212 
  213         for (f=vbus_ext->freelist_head; f; f=f->next) {
  214 #if DBG
  215                 if (f->count!=f->reserved_count) {
  216                         KdPrint(("memory leak for freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
  217                 }
  218 #endif
  219                 while ((p=freelist_get(f)))
  220                         free(p, M_DEVBUF);
  221         }
  222 
  223         for (i=0; i<os_max_cache_pages; i++) {
  224                 p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus);
  225                 HPT_ASSERT(p);
  226                 free_pages(p, 0);
  227         }
  228 
  229         for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
  230                 int order, size;
  231 #if DBG
  232                 if (f->count!=f->reserved_count) {
  233                         KdPrint(("memory leak for dma freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
  234                 }
  235 #endif
  236                 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ;
  237 
  238                 while ((p=freelist_get_dma(f, &bus))) {
  239                         if (order)
  240                                 free_pages(p, order);
  241                         else {
  242                         /* can't free immediately since other blocks in this page may still be in the list */
  243                                 if (((HPT_UPTR)p & (PAGE_SIZE-1))==0)
  244                                         dmapool_put_page((PVBUS)vbus_ext->vbus, p, bus);
  245                         }
  246                 }
  247         }
  248         
  249         while ((p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus)))
  250                 free_pages(p, 0);
  251 }
  252 
  253 static int hpt_init_vbus(PVBUS_EXT vbus_ext)
  254 {
  255         PHBA hba;
  256 
  257         for (hba = vbus_ext->hba_list; hba; hba = hba->next)
  258                 if (!hba->ldm_adapter.him->initialize(hba->ldm_adapter.him_handle)) {
  259                         KdPrint(("fail to initialize %p", hba));
  260                         return -1;
  261                 }
  262 
  263         ldm_initialize_vbus((PVBUS)vbus_ext->vbus, &vbus_ext->hba_list->ldm_adapter);
  264         return 0;
  265 }
  266 
  267 static void hpt_flush_done(PCOMMAND pCmd)
  268 {
  269         PVDEV vd = pCmd->target;
  270 
  271         if (mIsArray(vd->type) && vd->u.array.transform && vd!=vd->u.array.transform->target) {
  272                 vd = vd->u.array.transform->target;
  273                 HPT_ASSERT(vd);
  274                 pCmd->target = vd;
  275                 pCmd->Result = RETURN_PENDING;
  276                 vdev_queue_cmd(pCmd);
  277                 return;
  278         }
  279 
  280         *(int *)pCmd->priv = 1;
  281         wakeup(pCmd);
  282 }
  283 
  284 /*
  285  * flush a vdev (without retry).
  286  */
  287 static int hpt_flush_vdev(PVBUS_EXT vbus_ext, PVDEV vd)
  288 {
  289         PCOMMAND pCmd;
  290         int result = 0, done;
  291         HPT_UINT count;
  292 
  293         KdPrint(("flusing dev %p", vd));
  294 
  295         hpt_lock_vbus(vbus_ext);
  296 
  297         if (mIsArray(vd->type) && vd->u.array.transform)
  298                 count = MAX(vd->u.array.transform->source->cmds_per_request,
  299                                         vd->u.array.transform->target->cmds_per_request);
  300         else
  301                 count = vd->cmds_per_request;
  302 
  303         pCmd = ldm_alloc_cmds(vd->vbus, count);
  304 
  305         if (!pCmd) {
  306                 hpt_unlock_vbus(vbus_ext);
  307                 return -1;
  308         }
  309 
  310         pCmd->type = CMD_TYPE_FLUSH;
  311         pCmd->flags.hard_flush = 1;
  312         pCmd->target = vd;
  313         pCmd->done = hpt_flush_done;
  314         done = 0;
  315         pCmd->priv = &done;
  316 
  317         ldm_queue_cmd(pCmd);
  318         
  319         if (!done) {
  320                 while (hpt_sleep(vbus_ext, pCmd, PPAUSE, "hptfls", HPT_OSM_TIMEOUT)) {
  321                         ldm_reset_vbus(vd->vbus);
  322                 }
  323         }
  324 
  325         KdPrint(("flush result %d", pCmd->Result));
  326 
  327         if (pCmd->Result!=RETURN_SUCCESS)
  328                 result = -1;
  329 
  330         ldm_free_cmds(pCmd);
  331 
  332         hpt_unlock_vbus(vbus_ext);
  333 
  334         return result;
  335 }
  336 
  337 static void hpt_stop_tasks(PVBUS_EXT vbus_ext);
  338 static void hpt_shutdown_vbus(PVBUS_EXT vbus_ext, int howto)
  339 {
  340         PVBUS     vbus = (PVBUS)vbus_ext->vbus;
  341         PHBA hba;
  342         int i;
  343         
  344         KdPrint(("hpt_shutdown_vbus"));
  345 
  346         /* stop all ctl tasks and disable the worker taskqueue */
  347         hpt_stop_tasks(vbus_ext);
  348         vbus_ext->worker.ta_context = 0;
  349 
  350         /* flush devices */
  351         for (i=0; i<osm_max_targets; i++) {
  352                 PVDEV vd = ldm_find_target(vbus, i);
  353                 if (vd) {
  354                         /* retry once */
  355                         if (hpt_flush_vdev(vbus_ext, vd))
  356                                 hpt_flush_vdev(vbus_ext, vd);
  357                 }
  358         }
  359 
  360         hpt_lock_vbus(vbus_ext);
  361         ldm_shutdown(vbus);
  362         hpt_unlock_vbus(vbus_ext);
  363 
  364         ldm_release_vbus(vbus);
  365 
  366         for (hba=vbus_ext->hba_list; hba; hba=hba->next)
  367                 bus_teardown_intr(hba->pcidev, hba->irq_res, hba->irq_handle);
  368 
  369         hpt_free_mem(vbus_ext);
  370 
  371         while ((hba=vbus_ext->hba_list)) {
  372                 vbus_ext->hba_list = hba->next;
  373                 free(hba->ldm_adapter.him_handle, M_DEVBUF);
  374         }
  375 
  376         free(vbus_ext, M_DEVBUF);
  377         KdPrint(("hpt_shutdown_vbus done"));
  378 }
  379 
  380 static void __hpt_do_tasks(PVBUS_EXT vbus_ext)
  381 {
  382         OSM_TASK *tasks;
  383 
  384         tasks = vbus_ext->tasks;
  385         vbus_ext->tasks = 0;
  386 
  387         while (tasks) {
  388                 OSM_TASK *t = tasks;
  389                 tasks = t->next;
  390                 t->next = 0;
  391                 t->func(vbus_ext->vbus, t->data);
  392         }
  393 }
  394 
  395 static void hpt_do_tasks(PVBUS_EXT vbus_ext, int pending)
  396 {
  397         if(vbus_ext){
  398                 hpt_lock_vbus(vbus_ext);
  399                 __hpt_do_tasks(vbus_ext);
  400                 hpt_unlock_vbus(vbus_ext);
  401         }
  402 }
  403 
  404 static void hpt_action(struct cam_sim *sim, union ccb *ccb);
  405 static void hpt_poll(struct cam_sim *sim);
  406 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg);
  407 static void hpt_pci_intr(void *arg);
  408 
  409 static __inline POS_CMDEXT cmdext_get(PVBUS_EXT vbus_ext)
  410 {
  411         POS_CMDEXT p = vbus_ext->cmdext_list;
  412         if (p)
  413                 vbus_ext->cmdext_list = p->next;
  414         return p;
  415 }
  416 
  417 static __inline void cmdext_put(POS_CMDEXT p)
  418 {
  419         p->next = p->vbus_ext->cmdext_list;
  420         p->vbus_ext->cmdext_list = p;
  421 }
  422 
  423 static void hpt_timeout(void *arg)
  424 {
  425         PCOMMAND pCmd = (PCOMMAND)arg;
  426         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
  427         
  428         KdPrint(("pCmd %p timeout", pCmd));
  429         
  430         ldm_reset_vbus((PVBUS)ext->vbus_ext->vbus);
  431 }
  432 
  433 static void os_cmddone(PCOMMAND pCmd)
  434 {
  435         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
  436         union ccb *ccb = ext->ccb;
  437 
  438         KdPrint(("os_cmddone(%p, %d)", pCmd, pCmd->Result));
  439         
  440         untimeout(hpt_timeout, pCmd, ccb->ccb_h.timeout_ch);
  441 
  442         switch(pCmd->Result) {
  443         case RETURN_SUCCESS:
  444                 ccb->ccb_h.status = CAM_REQ_CMP;
  445                 break;
  446         case RETURN_BAD_DEVICE:
  447                 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
  448                 break;
  449         case RETURN_DEVICE_BUSY:
  450                 ccb->ccb_h.status = CAM_BUSY;
  451                 break;
  452         case RETURN_INVALID_REQUEST:
  453                 ccb->ccb_h.status = CAM_REQ_INVALID;
  454                 break;
  455         case RETURN_SELECTION_TIMEOUT:
  456                 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
  457                 break;
  458         case RETURN_RETRY:
  459                 ccb->ccb_h.status = CAM_BUSY;
  460                 break;
  461         default:
  462                 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR;
  463                 break;
  464         }
  465 
  466         if (pCmd->flags.data_in) {
  467                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTREAD);
  468         }
  469         else if (pCmd->flags.data_out) {
  470                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTWRITE);
  471         }
  472         
  473         bus_dmamap_unload(ext->vbus_ext->io_dmat, ext->dma_map);
  474 
  475         cmdext_put(ext);
  476         ldm_free_cmds(pCmd);
  477         xpt_done(ccb);
  478 }
  479 
  480 static int os_buildsgl(PCOMMAND pCmd, PSG pSg, int logical)
  481 {
  482         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
  483         union ccb *ccb = ext->ccb;
  484         bus_dma_segment_t *sgList = (bus_dma_segment_t *)ccb->csio.data_ptr;
  485         int idx;
  486 
  487         if(logical)     {
  488                 if (ccb->ccb_h.flags & CAM_DATA_PHYS)
  489                         panic("physical address unsupported");
  490 
  491                 if (ccb->ccb_h.flags & CAM_SCATTER_VALID) {
  492                         if (ccb->ccb_h.flags & CAM_SG_LIST_PHYS)
  493                                 panic("physical address unsupported");
  494         
  495                         for (idx = 0; idx < ccb->csio.sglist_cnt; idx++) {
  496                                 os_set_sgptr(&pSg[idx], (HPT_U8 *)(HPT_UPTR)sgList[idx].ds_addr);
  497                                 pSg[idx].size = sgList[idx].ds_len;
  498                                 pSg[idx].eot = (idx==ccb->csio.sglist_cnt-1)? 1 : 0;
  499                         }
  500                 }
  501                 else {
  502                         os_set_sgptr(pSg, (HPT_U8 *)ccb->csio.data_ptr);
  503                         pSg->size = ccb->csio.dxfer_len;
  504                         pSg->eot = 1;
  505                 }
  506                 return TRUE;
  507         }
  508 
  509         /* since we have provided physical sg, nobody will ask us to build physical sg */
  510         HPT_ASSERT(0);
  511         return FALSE;
  512 }
  513 
  514 static void hpt_io_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
  515 {
  516         PCOMMAND pCmd = (PCOMMAND)arg;
  517         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
  518         PSG psg = pCmd->psg;
  519         int idx;
  520         
  521         HPT_ASSERT(pCmd->flags.physical_sg);
  522         
  523         if (error || nsegs == 0)
  524                 panic("busdma error");
  525                 
  526         HPT_ASSERT(nsegs<=os_max_sg_descriptors);
  527 
  528         for (idx = 0; idx < nsegs; idx++, psg++) {
  529                 psg->addr.bus = segs[idx].ds_addr;
  530                 psg->size = segs[idx].ds_len;
  531                 psg->eot = 0;
  532         }
  533         psg[-1].eot = 1;
  534         
  535         if (pCmd->flags.data_in) {
  536                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_PREREAD);
  537         }
  538         else if (pCmd->flags.data_out) {
  539                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_PREWRITE);
  540         }
  541 
  542         ext->ccb->ccb_h.timeout_ch = timeout(hpt_timeout, pCmd, HPT_OSM_TIMEOUT);
  543         ldm_queue_cmd(pCmd);
  544 }
  545 
  546 static void hpt_scsi_io(PVBUS_EXT vbus_ext, union ccb *ccb)
  547 {
  548         PVBUS vbus = (PVBUS)vbus_ext->vbus;
  549         PVDEV vd;
  550         PCOMMAND pCmd;
  551         POS_CMDEXT ext;
  552         HPT_U8 *cdb;
  553 
  554         if (ccb->ccb_h.flags & CAM_CDB_POINTER)
  555                 cdb = ccb->csio.cdb_io.cdb_ptr;
  556         else
  557                 cdb = ccb->csio.cdb_io.cdb_bytes;
  558         
  559         KdPrint(("hpt_scsi_io: ccb %x id %d lun %d cdb %x-%x-%x",
  560                 ccb,
  561                 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
  562                 *(HPT_U32 *)&cdb[0], *(HPT_U32 *)&cdb[4], *(HPT_U32 *)&cdb[8]
  563         ));
  564 
  565         /* ccb->ccb_h.path_id is not our bus id - don't check it */
  566         if (ccb->ccb_h.target_lun != 0 ||
  567                 ccb->ccb_h.target_id >= osm_max_targets ||
  568                 (ccb->ccb_h.flags & CAM_CDB_PHYS))
  569         {
  570                 ccb->ccb_h.status = CAM_TID_INVALID;
  571                 xpt_done(ccb);
  572                 return;
  573         }
  574 
  575         vd = ldm_find_target(vbus, ccb->ccb_h.target_id);
  576 
  577         if (!vd) {
  578                 ccb->ccb_h.status = CAM_TID_INVALID;
  579                 xpt_done(ccb);
  580                 return;
  581         }
  582    
  583         switch (cdb[0]) {
  584         case TEST_UNIT_READY:
  585         case START_STOP_UNIT:
  586         case SYNCHRONIZE_CACHE:
  587                 ccb->ccb_h.status = CAM_REQ_CMP;
  588                 break;
  589 
  590         case INQUIRY:
  591                 {
  592                         PINQUIRYDATA inquiryData;
  593                         memset(ccb->csio.data_ptr, 0, ccb->csio.dxfer_len);
  594                         inquiryData = (PINQUIRYDATA)ccb->csio.data_ptr;
  595                 
  596                         inquiryData->AdditionalLength = 31;
  597                         inquiryData->CommandQueue = 1;
  598                         memcpy(&inquiryData->VendorId, "HPT     ", 8);
  599                         memcpy(&inquiryData->ProductId, "DISK 0_0        ", 16);
  600         
  601                         if (vd->target_id / 10) {
  602                                 inquiryData->ProductId[7] = (vd->target_id % 100) / 10 + '';
  603                                 inquiryData->ProductId[8] = (vd->target_id % 100) % 10 + '';
  604                         }
  605                         else
  606                                 inquiryData->ProductId[7] = (vd->target_id % 100) % 10 + '';
  607         
  608                         memcpy(&inquiryData->ProductRevisionLevel, "4.00", 4);
  609         
  610                         ccb->ccb_h.status = CAM_REQ_CMP;
  611                 }
  612                 break;
  613 
  614         case READ_CAPACITY:
  615         {
  616                 HPT_U8 *rbuf = ccb->csio.data_ptr;
  617                 HPT_U32 cap;
  618                 
  619                 if (vd->capacity>0xfffffffful)
  620                         cap = 0xfffffffful;
  621                 else
  622                         cap = vd->capacity - 1;
  623         
  624                 rbuf[0] = (HPT_U8)(cap>>24);
  625                 rbuf[1] = (HPT_U8)(cap>>16);
  626                 rbuf[2] = (HPT_U8)(cap>>8);
  627                 rbuf[3] = (HPT_U8)cap;
  628                 rbuf[4] = 0;
  629                 rbuf[5] = 0;
  630                 rbuf[6] = 2;
  631                 rbuf[7] = 0;
  632 
  633                 ccb->ccb_h.status = CAM_REQ_CMP;
  634                 break;
  635         }
  636         
  637         case SERVICE_ACTION_IN: 
  638         {
  639                 HPT_U8 *rbuf = ccb->csio.data_ptr;
  640                 HPT_U64 cap = vd->capacity - 1;
  641                 
  642                 rbuf[0] = (HPT_U8)(cap>>56);
  643                 rbuf[1] = (HPT_U8)(cap>>48);
  644                 rbuf[2] = (HPT_U8)(cap>>40);
  645                 rbuf[3] = (HPT_U8)(cap>>32);
  646                 rbuf[4] = (HPT_U8)(cap>>24);
  647                 rbuf[5] = (HPT_U8)(cap>>16);
  648                 rbuf[6] = (HPT_U8)(cap>>8);
  649                 rbuf[7] = (HPT_U8)cap;
  650                 rbuf[8] = 0;
  651                 rbuf[9] = 0;
  652                 rbuf[10] = 2;
  653                 rbuf[11] = 0;
  654                 
  655                 ccb->ccb_h.status = CAM_REQ_CMP;
  656                 break;  
  657         }
  658         
  659         case READ_6:
  660         case READ_10:
  661         case READ_16:
  662         case WRITE_6:
  663         case WRITE_10:
  664         case WRITE_16:
  665         case 0x13:
  666         case 0x2f:
  667         {
  668                 pCmd = ldm_alloc_cmds(vbus, vd->cmds_per_request);
  669                 if(!pCmd){
  670                         KdPrint(("Failed to allocate command!"));
  671                         ccb->ccb_h.status = CAM_BUSY;
  672                         break;
  673                 }
  674 
  675                 switch (cdb[0]) {
  676                 case READ_6:
  677                 case WRITE_6:
  678                 case 0x13:
  679                         pCmd->uCmd.Ide.Lba =  ((HPT_U32)cdb[1] << 16) | ((HPT_U32)cdb[2] << 8) | (HPT_U32)cdb[3];
  680                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[4];
  681                         break;
  682                 case READ_16:
  683                 case WRITE_16: 
  684                 {
  685                         HPT_U64 block =
  686                                 ((HPT_U64)cdb[2]<<56) |
  687                                 ((HPT_U64)cdb[3]<<48) |
  688                                 ((HPT_U64)cdb[4]<<40) |
  689                                 ((HPT_U64)cdb[5]<<32) |
  690                                 ((HPT_U64)cdb[6]<<24) |
  691                                 ((HPT_U64)cdb[7]<<16) |
  692                                 ((HPT_U64)cdb[8]<<8) |
  693                                 ((HPT_U64)cdb[9]);
  694                         pCmd->uCmd.Ide.Lba = block;
  695                         pCmd->uCmd.Ide.nSectors = (HPT_U16)cdb[13] | ((HPT_U16)cdb[12]<<8);
  696                         break;
  697                 }
  698                 
  699                 default:
  700                         pCmd->uCmd.Ide.Lba = (HPT_U32)cdb[5] | ((HPT_U32)cdb[4] << 8) | ((HPT_U32)cdb[3] << 16) | ((HPT_U32)cdb[2] << 24);
  701                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[8] | ((HPT_U16)cdb[7]<<8);
  702                         break;
  703                 }
  704                 
  705                 switch (cdb[0]) {
  706                 case READ_6:
  707                 case READ_10:
  708                 case READ_16:
  709                         pCmd->flags.data_in = 1;
  710                         break;
  711                 case WRITE_6:
  712                 case WRITE_10:
  713                 case WRITE_16:
  714                         pCmd->flags.data_out = 1;
  715                         break;
  716                 }
  717                 pCmd->priv = ext = cmdext_get(vbus_ext);
  718                 HPT_ASSERT(ext);
  719                 ext->ccb = ccb;
  720                 pCmd->target = vd;
  721                 pCmd->done = os_cmddone;
  722                 pCmd->buildsgl = os_buildsgl;
  723 
  724                 pCmd->psg = ext->psg;
  725                 
  726                 if (ccb->ccb_h.flags & CAM_SCATTER_VALID) {
  727                         int idx;
  728                         bus_dma_segment_t *sgList = (bus_dma_segment_t *)ccb->csio.data_ptr;
  729                         
  730                         if (ccb->ccb_h.flags & CAM_SG_LIST_PHYS)
  731                                 pCmd->flags.physical_sg = 1;
  732                                 
  733                         for (idx = 0; idx < ccb->csio.sglist_cnt; idx++) {
  734                                 pCmd->psg[idx].addr.bus = sgList[idx].ds_addr;
  735                                 pCmd->psg[idx].size = sgList[idx].ds_len;
  736                                 pCmd->psg[idx].eot = (idx==ccb->csio.sglist_cnt-1)? 1 : 0;
  737                         }
  738 
  739                         ccb->ccb_h.timeout_ch = timeout(hpt_timeout, pCmd, HPT_OSM_TIMEOUT);
  740                         ldm_queue_cmd(pCmd);
  741                 }
  742                 else {
  743                         int error;
  744                         pCmd->flags.physical_sg = 1;
  745                         error = bus_dmamap_load(vbus_ext->io_dmat, 
  746                                                 ext->dma_map, 
  747                                                 ccb->csio.data_ptr, ccb->csio.dxfer_len, 
  748                                                 hpt_io_dmamap_callback, pCmd,
  749                                         BUS_DMA_WAITOK
  750                                         );
  751                         KdPrint(("bus_dmamap_load return %d", error));
  752                         if (error && error!=EINPROGRESS) {
  753                                 os_printk("bus_dmamap_load error %d", error);
  754                                 cmdext_put(ext);
  755                                 ldm_free_cmds(pCmd);
  756                                 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
  757                                 xpt_done(ccb);
  758                         }
  759                 }
  760                 return;
  761         }
  762 
  763         default:
  764                 ccb->ccb_h.status = CAM_REQ_INVALID;
  765                 break;
  766         }
  767 
  768         xpt_done(ccb);
  769         return;
  770 }
  771 
  772 static void hpt_action(struct cam_sim *sim, union ccb *ccb)
  773 {
  774         PVBUS_EXT vbus_ext = (PVBUS_EXT)cam_sim_softc(sim);
  775 
  776         KdPrint(("hpt_action(fn=%d, id=%d)", ccb->ccb_h.func_code, ccb->ccb_h.target_id));
  777 
  778         switch (ccb->ccb_h.func_code) {
  779         
  780         case XPT_SCSI_IO:
  781                 hpt_lock_vbus(vbus_ext);
  782                 hpt_scsi_io(vbus_ext, ccb);
  783                 hpt_unlock_vbus(vbus_ext);
  784                 return;
  785 
  786         case XPT_RESET_BUS:
  787                 hpt_lock_vbus(vbus_ext);
  788                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
  789                 hpt_unlock_vbus(vbus_ext);
  790                 break;
  791 
  792         case XPT_GET_TRAN_SETTINGS:
  793         case XPT_SET_TRAN_SETTINGS:
  794                 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
  795                 break;
  796 
  797         case XPT_CALC_GEOMETRY:
  798                 ccb->ccg.heads = 255;
  799                 ccb->ccg.secs_per_track = 63;
  800                 ccb->ccg.cylinders = ccb->ccg.volume_size / (ccb->ccg.heads * ccb->ccg.secs_per_track);
  801                 ccb->ccb_h.status = CAM_REQ_CMP;
  802                 break;
  803 
  804         case XPT_PATH_INQ:
  805         {
  806                 struct ccb_pathinq *cpi = &ccb->cpi;
  807 
  808                 cpi->version_num = 1;
  809                 cpi->hba_inquiry = PI_SDTR_ABLE;
  810                 cpi->target_sprt = 0;
  811                 cpi->hba_misc = PIM_NOBUSRESET;
  812                 cpi->hba_eng_cnt = 0;
  813                 cpi->max_target = osm_max_targets;
  814                 cpi->max_lun = 0;
  815                 cpi->unit_number = cam_sim_unit(sim);
  816                 cpi->bus_id = cam_sim_bus(sim);
  817                 cpi->initiator_id = osm_max_targets;
  818                 cpi->base_transfer_speed = 3300;
  819 
  820                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
  821                 strncpy(cpi->hba_vid, "HPT   ", HBA_IDLEN);
  822                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
  823                 cpi->transport = XPORT_SPI;
  824                 cpi->transport_version = 2;
  825                 cpi->protocol = PROTO_SCSI;
  826                 cpi->protocol_version = SCSI_REV_2;
  827                 cpi->ccb_h.status = CAM_REQ_CMP;
  828                 break;
  829         }
  830 
  831         default:
  832                 ccb->ccb_h.status = CAM_REQ_INVALID;
  833                 break;
  834         }
  835 
  836         xpt_done(ccb);
  837         return;
  838 }
  839 
  840 static void hpt_pci_intr(void *arg)
  841 {       
  842         PVBUS_EXT vbus_ext = (PVBUS_EXT)arg;
  843         hpt_lock_vbus(vbus_ext);
  844         ldm_intr((PVBUS)vbus_ext->vbus);
  845         hpt_unlock_vbus(vbus_ext);
  846 }
  847 
  848 static void hpt_poll(struct cam_sim *sim)
  849 {
  850         hpt_pci_intr(cam_sim_softc(sim));
  851 }
  852 
  853 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg)
  854 {
  855         KdPrint(("hpt_async"));
  856 }
  857 
  858 static int hpt_shutdown(device_t dev)
  859 {
  860         KdPrint(("hpt_shutdown(dev=%p)", dev));
  861         return 0;
  862 }
  863 
  864 static int hpt_detach(device_t dev)
  865 {
  866         /* we don't allow the driver to be unloaded. */
  867         return EBUSY;
  868 }
  869 
  870 static void hpt_ioctl_done(struct _IOCTL_ARG *arg)
  871 {
  872         arg->ioctl_cmnd = 0;
  873         wakeup(arg);
  874 }
  875 
  876 static void __hpt_do_ioctl(PVBUS_EXT vbus_ext, IOCTL_ARG *ioctl_args)
  877 {
  878         ioctl_args->result = -1;
  879         ioctl_args->done = hpt_ioctl_done;
  880         ioctl_args->ioctl_cmnd = (void *)1;
  881 
  882         hpt_lock_vbus(vbus_ext);
  883         ldm_ioctl((PVBUS)vbus_ext->vbus, ioctl_args);
  884 
  885         while (ioctl_args->ioctl_cmnd) {
  886                 if (hpt_sleep(vbus_ext, ioctl_args, PPAUSE, "hptctl", HPT_OSM_TIMEOUT)==0)
  887                         break;
  888                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
  889                 __hpt_do_tasks(vbus_ext);
  890         }
  891 
  892         /* KdPrint(("ioctl %x result %d", ioctl_args->dwIoControlCode, ioctl_args->result)); */
  893 
  894         hpt_unlock_vbus(vbus_ext);
  895 }
  896 
  897 static void hpt_do_ioctl(IOCTL_ARG *ioctl_args)
  898 {
  899         PVBUS vbus;
  900         PVBUS_EXT vbus_ext;
  901         
  902         ldm_for_each_vbus(vbus, vbus_ext) {
  903                 __hpt_do_ioctl(vbus_ext, ioctl_args);
  904                 if (ioctl_args->result!=HPT_IOCTL_RESULT_WRONG_VBUS)
  905                         return;
  906         }
  907 }
  908 
  909 #define HPT_DO_IOCTL(code, inbuf, insize, outbuf, outsize) ({\
  910         IOCTL_ARG arg;\
  911         arg.dwIoControlCode = code;\
  912         arg.lpInBuffer = inbuf;\
  913         arg.lpOutBuffer = outbuf;\
  914         arg.nInBufferSize = insize;\
  915         arg.nOutBufferSize = outsize;\
  916         arg.lpBytesReturned = 0;\
  917         hpt_do_ioctl(&arg);\
  918         arg.result;\
  919 })
  920 
  921 #define DEVICEID_VALID(id) ((id) && ((HPT_U32)(id)!=0xffffffff))
  922 
  923 static int hpt_get_logical_devices(DEVICEID * pIds, int nMaxCount)
  924 {
  925         int i;
  926         HPT_U32 count = nMaxCount-1;
  927         
  928         if (HPT_DO_IOCTL(HPT_IOCTL_GET_LOGICAL_DEVICES,
  929                         &count, sizeof(HPT_U32), pIds, sizeof(DEVICEID)*nMaxCount))
  930                 return -1;
  931 
  932         nMaxCount = (int)pIds[0];
  933         for (i=0; i<nMaxCount; i++) pIds[i] = pIds[i+1];
  934         return nMaxCount;
  935 }
  936 
  937 static int hpt_get_device_info_v3(DEVICEID id, PLOGICAL_DEVICE_INFO_V3 pInfo)
  938 {
  939         return HPT_DO_IOCTL(HPT_IOCTL_GET_DEVICE_INFO_V3,
  940                                 &id, sizeof(DEVICEID), pInfo, sizeof(LOGICAL_DEVICE_INFO_V3));
  941 }
  942 
  943 /* not belong to this file logically, but we want to use ioctl interface */
  944 static int __hpt_stop_tasks(PVBUS_EXT vbus_ext, DEVICEID id)
  945 {
  946         LOGICAL_DEVICE_INFO_V3 devinfo;
  947         int i, result;
  948         DEVICEID param[2] = { id, 0 };
  949         
  950         if (hpt_get_device_info_v3(id, &devinfo))
  951                 return -1;
  952                 
  953         if (devinfo.Type!=LDT_ARRAY)
  954                 return -1;
  955                 
  956         if (devinfo.u.array.Flags & ARRAY_FLAG_REBUILDING)
  957                 param[1] = AS_REBUILD_ABORT;
  958         else if (devinfo.u.array.Flags & ARRAY_FLAG_VERIFYING)
  959                 param[1] = AS_VERIFY_ABORT;
  960         else if (devinfo.u.array.Flags & ARRAY_FLAG_INITIALIZING)
  961                 param[1] = AS_INITIALIZE_ABORT;
  962         else if (devinfo.u.array.Flags & ARRAY_FLAG_TRANSFORMING)
  963                 param[1] = AS_TRANSFORM_ABORT;
  964         else
  965                 return -1;
  966 
  967         KdPrint(("SET_ARRAY_STATE(%x, %d)", param[0], param[1]));
  968         result = HPT_DO_IOCTL(HPT_IOCTL_SET_ARRAY_STATE,
  969                                 param, sizeof(param), 0, 0);
  970                                 
  971         for (i=0; i<devinfo.u.array.nDisk; i++)
  972                 if (DEVICEID_VALID(devinfo.u.array.Members[i]))
  973                         __hpt_stop_tasks(vbus_ext, devinfo.u.array.Members[i]);
  974                         
  975         return result;
  976 }
  977 
  978 static void hpt_stop_tasks(PVBUS_EXT vbus_ext)
  979 {
  980         DEVICEID ids[32];
  981         int i, count;
  982 
  983         count = hpt_get_logical_devices((DEVICEID *)&ids, sizeof(ids)/sizeof(ids[0]));
  984         
  985         for (i=0; i<count; i++)
  986                 __hpt_stop_tasks(vbus_ext, ids[i]);
  987 }
  988 
  989 static  d_open_t        hpt_open;
  990 static  d_close_t       hpt_close;
  991 static  d_ioctl_t       hpt_ioctl;
  992 static  void            hpt_bus_scan_cb(struct cam_periph *periph, union ccb *ccb);
  993 static  int             hpt_rescan_bus(void);
  994 
  995 static struct cdevsw hpt_cdevsw = {
  996         .d_open =       hpt_open,
  997         .d_close =      hpt_close,
  998         .d_ioctl =      hpt_ioctl,
  999         .d_name =       driver_name,
 1000 #if __FreeBSD_version>=503000
 1001         .d_version =    D_VERSION,
 1002 #endif
 1003 #if (__FreeBSD_version>=503000 && __FreeBSD_version<600034)
 1004         .d_flags =      D_NEEDGIANT,
 1005 #endif
 1006 #if __FreeBSD_version<600034
 1007 #if __FreeBSD_version>501000
 1008         .d_maj =        MAJOR_AUTO,
 1009 #else 
 1010         .d_maj = HPT_DEV_MAJOR,
 1011 #endif
 1012 #endif
 1013 };
 1014 
 1015 static struct intr_config_hook hpt_ich;
 1016 
 1017 /*
 1018  * hpt_final_init will be called after all hpt_attach.
 1019  */
 1020 static void hpt_final_init(void *dummy)
 1021 {
 1022         int       i;
 1023         PVBUS_EXT vbus_ext;
 1024         PVBUS vbus;
 1025         PHBA hba;
 1026 
 1027         /* Clear the config hook */
 1028         config_intrhook_disestablish(&hpt_ich);
 1029 
 1030         /* allocate memory */
 1031         i = 0;
 1032         ldm_for_each_vbus(vbus, vbus_ext) {
 1033                 if (hpt_alloc_mem(vbus_ext)) {
 1034                         os_printk("out of memory");
 1035                         return;
 1036                 }
 1037                 i++;
 1038         }
 1039 
 1040         if (!i) {
 1041                 if (bootverbose)
 1042                         os_printk("no controller detected.");
 1043                 return;
 1044         }
 1045 
 1046         /* initializing hardware */
 1047         ldm_for_each_vbus(vbus, vbus_ext) {
 1048                 /* make timer available here */
 1049                 callout_handle_init(&vbus_ext->timer);
 1050                 if (hpt_init_vbus(vbus_ext)) {
 1051                         os_printk("fail to initialize hardware");
 1052                         break; /* FIXME */
 1053                 }
 1054         }
 1055 
 1056         /* register CAM interface */
 1057         ldm_for_each_vbus(vbus, vbus_ext) {
 1058                 struct cam_devq *devq;
 1059                 struct ccb_setasync     ccb;
 1060                 
 1061 #if (__FreeBSD_version >= 500000)
 1062                 mtx_init(&vbus_ext->lock, "hptsleeplock", NULL, MTX_DEF);
 1063 #endif
 1064                 if (bus_dma_tag_create(NULL,/* parent */
 1065                                 4,      /* alignment */
 1066                                 BUS_SPACE_MAXADDR_32BIT+1, /* boundary */
 1067                                 BUS_SPACE_MAXADDR,      /* lowaddr */
 1068                                 BUS_SPACE_MAXADDR,      /* highaddr */
 1069                                 NULL, NULL,             /* filter, filterarg */
 1070                                 PAGE_SIZE * (os_max_sg_descriptors-1),  /* maxsize */
 1071                                 os_max_sg_descriptors,  /* nsegments */
 1072                                 0x10000,        /* maxsegsize */
 1073                                 BUS_DMA_WAITOK,         /* flags */
 1074 #if __FreeBSD_version>502000
 1075                                 busdma_lock_mutex,      /* lockfunc */
 1076                                 &vbus_ext->lock,                /* lockfuncarg */
 1077 #endif
 1078                                 &vbus_ext->io_dmat      /* tag */))
 1079                 {
 1080                         return ;
 1081                 }
 1082 
 1083                 for (i=0; i<os_max_queue_comm; i++) {
 1084                         POS_CMDEXT ext = (POS_CMDEXT)malloc(sizeof(OS_CMDEXT), M_DEVBUF, M_WAITOK);
 1085                         if (!ext) {
 1086                                 os_printk("Can't alloc cmdext(%d)", i);
 1087                                 return ;
 1088                         }
 1089                         ext->vbus_ext = vbus_ext;
 1090                         ext->next = vbus_ext->cmdext_list;
 1091                         vbus_ext->cmdext_list = ext;
 1092         
 1093                         if (bus_dmamap_create(vbus_ext->io_dmat, 0, &ext->dma_map)) {
 1094                                 os_printk("Can't create dma map(%d)", i);
 1095                                 return ;
 1096                         }
 1097                 }
 1098 
 1099                 if ((devq = cam_simq_alloc(os_max_queue_comm)) == NULL) {
 1100                         os_printk("cam_simq_alloc failed");
 1101                         return ;
 1102                 }
 1103 
 1104 #if __FreeBSD_version > 700025
 1105                 vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name,
 1106                                 vbus_ext, 0, &Giant, os_max_queue_comm, /*tagged*/8,  devq);
 1107 #else
 1108                 vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name,
 1109                                 vbus_ext, 0, os_max_queue_comm, /*tagged*/8,  devq);
 1110 #endif
 1111                                 
 1112                 if (!vbus_ext->sim) {
 1113                         os_printk("cam_sim_alloc failed");
 1114                         cam_simq_free(devq);
 1115                         return ;
 1116                 }
 1117 
 1118 #if __FreeBSD_version > 700044
 1119                 if (xpt_bus_register(vbus_ext->sim, NULL, 0) != CAM_SUCCESS) {
 1120 #else
 1121                 if (xpt_bus_register(vbus_ext->sim, 0) != CAM_SUCCESS) {
 1122 #endif
 1123                         os_printk("xpt_bus_register failed");
 1124                         cam_sim_free(vbus_ext->sim, /*free devq*/ TRUE);
 1125                         vbus_ext->sim = NULL;
 1126                         return ;
 1127                 }
 1128         
 1129                 if (xpt_create_path(&vbus_ext->path, /*periph */ NULL,
 1130                                 cam_sim_path(vbus_ext->sim), CAM_TARGET_WILDCARD,
 1131                                 CAM_LUN_WILDCARD) != CAM_REQ_CMP)
 1132                 {
 1133                         os_printk("xpt_create_path failed");
 1134                         xpt_bus_deregister(cam_sim_path(vbus_ext->sim));
 1135                         cam_sim_free(vbus_ext->sim, /*free_devq*/TRUE);
 1136                         vbus_ext->sim = NULL;
 1137                         return ;
 1138                 }
 1139 
 1140                 xpt_setup_ccb(&ccb.ccb_h, vbus_ext->path, /*priority*/5);
 1141                 ccb.ccb_h.func_code = XPT_SASYNC_CB;
 1142                 ccb.event_enable = AC_LOST_DEVICE;
 1143                 ccb.callback = hpt_async;
 1144                 ccb.callback_arg = vbus_ext;
 1145                 xpt_action((union ccb *)&ccb);
 1146 
 1147                 for (hba = vbus_ext->hba_list; hba; hba = hba->next) {
 1148                         int rid = 0;
 1149                         if ((hba->irq_res = bus_alloc_resource(hba->pcidev,
 1150                                 SYS_RES_IRQ, &rid, 0, ~0ul, 1, RF_SHAREABLE | RF_ACTIVE)) == NULL)
 1151                         {
 1152                                 os_printk("can't allocate interrupt");
 1153                                 return ;
 1154                         }
 1155                         
 1156                         if (bus_setup_intr(hba->pcidev, hba->irq_res, INTR_TYPE_CAM,
 1157 #if __FreeBSD_version > 700025
 1158                                 NULL, hpt_pci_intr, vbus_ext, &hba->irq_handle)) 
 1159 #else
 1160                                 hpt_pci_intr, vbus_ext, &hba->irq_handle)) 
 1161 #endif
 1162                         {
 1163                                 os_printk("can't set up interrupt");
 1164                                 return ;
 1165                         }
 1166                         hba->ldm_adapter.him->intr_control(hba->ldm_adapter.him_handle, HPT_TRUE);
 1167                 }
 1168 
 1169                 vbus_ext->shutdown_eh = EVENTHANDLER_REGISTER(shutdown_final, 
 1170                                                                         hpt_shutdown_vbus, vbus_ext, SHUTDOWN_PRI_DEFAULT);
 1171                 if (!vbus_ext->shutdown_eh)
 1172                         os_printk("Shutdown event registration failed");
 1173         }
 1174         
 1175         ldm_for_each_vbus(vbus, vbus_ext) {
 1176                 TASK_INIT(&vbus_ext->worker, 0, (task_fn_t *)hpt_do_tasks, vbus_ext);
 1177                 if (vbus_ext->tasks)
 1178                         TASK_ENQUEUE(&vbus_ext->worker);
 1179         }       
 1180 
 1181         make_dev(&hpt_cdevsw, DRIVER_MINOR, UID_ROOT, GID_OPERATOR,
 1182             S_IRUSR | S_IWUSR, driver_name);
 1183 }
 1184 
 1185 #if defined(KLD_MODULE) && (__FreeBSD_version >= 503000)
 1186 
 1187 typedef struct driverlink *driverlink_t;
 1188 struct driverlink {
 1189         kobj_class_t    driver;
 1190         TAILQ_ENTRY(driverlink) link;   /* list of drivers in devclass */
 1191 };
 1192 
 1193 typedef TAILQ_HEAD(driver_list, driverlink) driver_list_t;
 1194 
 1195 struct devclass {
 1196         TAILQ_ENTRY(devclass) link;
 1197         devclass_t      parent;         /* parent in devclass hierarchy */
 1198         driver_list_t   drivers;     /* bus devclasses store drivers for bus */
 1199         char            *name;
 1200         device_t        *devices;       /* array of devices indexed by unit */
 1201         int             maxunit;        /* size of devices array */
 1202 };
 1203 
 1204 static void override_kernel_driver(void)
 1205 {
 1206         driverlink_t dl, dlfirst;
 1207         driver_t *tmpdriver;
 1208         devclass_t dc = devclass_find("pci");
 1209         
 1210         if (dc){
 1211                 dlfirst = TAILQ_FIRST(&dc->drivers);
 1212                 for (dl = dlfirst; dl; dl = TAILQ_NEXT(dl, link)) {
 1213                         if(strcmp(dl->driver->name, driver_name) == 0) {
 1214                                 tmpdriver=dl->driver;
 1215                                 dl->driver=dlfirst->driver;
 1216                                 dlfirst->driver=tmpdriver;
 1217                                 break;
 1218                         }
 1219                 }
 1220         }
 1221 }
 1222 
 1223 #else 
 1224 #define override_kernel_driver()
 1225 #endif
 1226 
 1227 static void hpt_init(void *dummy)
 1228 {
 1229         if (bootverbose)
 1230                 os_printk("%s %s", driver_name_long, driver_ver);
 1231 
 1232         override_kernel_driver();
 1233         init_config();
 1234 
 1235         hpt_ich.ich_func = hpt_final_init;
 1236         hpt_ich.ich_arg = NULL;
 1237         if (config_intrhook_establish(&hpt_ich) != 0) {
 1238                 printf("%s: cannot establish configuration hook\n",
 1239                     driver_name_long);
 1240         }
 1241 
 1242 }
 1243 SYSINIT(hptinit, SI_SUB_CONFIGURE, SI_ORDER_FIRST, hpt_init, NULL);
 1244 
 1245 /*
 1246  * CAM driver interface
 1247  */
 1248 static device_method_t driver_methods[] = {
 1249         /* Device interface */
 1250         DEVMETHOD(device_probe,         hpt_probe),
 1251         DEVMETHOD(device_attach,        hpt_attach),
 1252         DEVMETHOD(device_detach,        hpt_detach),
 1253         DEVMETHOD(device_shutdown,      hpt_shutdown),
 1254         { 0, 0 }
 1255 };
 1256 
 1257 static driver_t hpt_pci_driver = {
 1258         driver_name,
 1259         driver_methods,
 1260         sizeof(HBA)
 1261 };
 1262 
 1263 static devclass_t       hpt_devclass;
 1264 
 1265 #ifndef TARGETNAME
 1266 #error "no TARGETNAME found"
 1267 #endif
 1268 
 1269 /* use this to make TARGETNAME be expanded */
 1270 #define __DRIVER_MODULE(p1, p2, p3, p4, p5, p6) DRIVER_MODULE(p1, p2, p3, p4, p5, p6)
 1271 #define __MODULE_VERSION(p1, p2) MODULE_VERSION(p1, p2)
 1272 #define __MODULE_DEPEND(p1, p2, p3, p4, p5) MODULE_DEPEND(p1, p2, p3, p4, p5)
 1273 __DRIVER_MODULE(TARGETNAME, pci, hpt_pci_driver, hpt_devclass, 0, 0);
 1274 __MODULE_VERSION(TARGETNAME, 1);
 1275 __MODULE_DEPEND(TARGETNAME, cam, 1, 1, 1);
 1276 
 1277 #if __FreeBSD_version>503000
 1278 typedef struct cdev * ioctl_dev_t;
 1279 #else 
 1280 typedef dev_t ioctl_dev_t;
 1281 #endif
 1282 
 1283 #if __FreeBSD_version >= 500000
 1284 typedef struct thread * ioctl_thread_t;
 1285 #else 
 1286 typedef struct proc *   ioctl_thread_t;
 1287 #endif
 1288 
 1289 static int hpt_open(ioctl_dev_t dev, int flags, int devtype, ioctl_thread_t td)
 1290 {
 1291         return 0;
 1292 }
 1293 
 1294 static int hpt_close(ioctl_dev_t dev, int flags, int devtype, ioctl_thread_t td)
 1295 {
 1296         return 0;
 1297 }
 1298 
 1299 static int hpt_ioctl(ioctl_dev_t dev, u_long cmd, caddr_t data, int fflag, ioctl_thread_t td)
 1300 {
 1301         PHPT_IOCTL_PARAM piop=(PHPT_IOCTL_PARAM)data;
 1302         IOCTL_ARG ioctl_args;
 1303         HPT_U32 bytesReturned;
 1304 
 1305         switch (cmd){
 1306         case HPT_DO_IOCONTROL:
 1307         {       
 1308                 if (piop->Magic == HPT_IOCTL_MAGIC || piop->Magic == HPT_IOCTL_MAGIC32) {
 1309                         KdPrint(("ioctl=%x in=%p len=%d out=%p len=%d\n",
 1310                                 piop->dwIoControlCode,
 1311                                 piop->lpInBuffer,
 1312                                 piop->nInBufferSize,
 1313                                 piop->lpOutBuffer,
 1314                                 piop->nOutBufferSize));
 1315                         
 1316                 memset(&ioctl_args, 0, sizeof(ioctl_args));
 1317                 
 1318                 ioctl_args.dwIoControlCode = piop->dwIoControlCode;
 1319                 ioctl_args.nInBufferSize = piop->nInBufferSize;
 1320                 ioctl_args.nOutBufferSize = piop->nOutBufferSize;
 1321                 ioctl_args.lpBytesReturned = &bytesReturned;
 1322 
 1323                 if (ioctl_args.nInBufferSize) {
 1324                         ioctl_args.lpInBuffer = malloc(ioctl_args.nInBufferSize, M_DEVBUF, M_WAITOK);
 1325                         if (!ioctl_args.lpInBuffer)
 1326                                 goto invalid;
 1327                         if (copyin((void*)piop->lpInBuffer,
 1328                                         ioctl_args.lpInBuffer, piop->nInBufferSize))
 1329                                 goto invalid;
 1330                 }
 1331         
 1332                 if (ioctl_args.nOutBufferSize) {
 1333                         ioctl_args.lpOutBuffer = malloc(ioctl_args.nOutBufferSize, M_DEVBUF, M_WAITOK);
 1334                         if (!ioctl_args.lpOutBuffer)
 1335                                 goto invalid;
 1336                 }
 1337                 
 1338 #if (__FreeBSD_version >= 500000)
 1339                 mtx_lock(&Giant);
 1340 #endif
 1341 
 1342                 hpt_do_ioctl(&ioctl_args);
 1343         
 1344 #if (__FreeBSD_version >= 500000)
 1345                 mtx_unlock(&Giant);
 1346 #endif
 1347 
 1348                 if (ioctl_args.result==HPT_IOCTL_RESULT_OK) {
 1349                         if (piop->nOutBufferSize) {
 1350                                 if (copyout(ioctl_args.lpOutBuffer,
 1351                                         (void*)piop->lpOutBuffer, piop->nOutBufferSize))
 1352                                         goto invalid;
 1353                         }
 1354                         if (piop->lpBytesReturned) {
 1355                                 if (copyout(&bytesReturned,
 1356                                         (void*)piop->lpBytesReturned, sizeof(HPT_U32)))
 1357                                         goto invalid;
 1358                         }
 1359                         if (ioctl_args.lpInBuffer) free(ioctl_args.lpInBuffer, M_DEVBUF);
 1360                         if (ioctl_args.lpOutBuffer) free(ioctl_args.lpOutBuffer, M_DEVBUF);
 1361                         return 0;
 1362                 }
 1363 invalid:
 1364                 if (ioctl_args.lpInBuffer) free(ioctl_args.lpInBuffer, M_DEVBUF);
 1365                 if (ioctl_args.lpOutBuffer) free(ioctl_args.lpOutBuffer, M_DEVBUF);
 1366                 return EFAULT;
 1367         }
 1368         return EFAULT;
 1369         }
 1370 
 1371         case HPT_SCAN_BUS:
 1372         {
 1373                 return hpt_rescan_bus();
 1374         }
 1375         default:
 1376                 KdPrint(("invalid command!"));
 1377                 return EFAULT;
 1378         }       
 1379 
 1380 }
 1381 
 1382 static int      hpt_rescan_bus(void)
 1383 {
 1384         struct cam_path         *path;
 1385         union ccb                       *ccb;
 1386         PVBUS                           vbus;
 1387         PVBUS_EXT                       vbus_ext;       
 1388                 
 1389 #if (__FreeBSD_version >= 500000)
 1390         mtx_lock(&Giant);
 1391 #endif
 1392 
 1393         ldm_for_each_vbus(vbus, vbus_ext) {
 1394                 if (xpt_create_path(&path, xpt_periph, cam_sim_path(vbus_ext->sim),
 1395                         CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP)  
 1396                         return(EIO);
 1397                 if ((ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK)) == NULL)
 1398                         return(ENOMEM);
 1399                 bzero(ccb, sizeof(union ccb));
 1400                 xpt_setup_ccb(&ccb->ccb_h, path, 5);
 1401                 ccb->ccb_h.func_code = XPT_SCAN_BUS;
 1402                 ccb->ccb_h.cbfcnp = hpt_bus_scan_cb;
 1403                 ccb->crcn.flags = CAM_FLAG_NONE;
 1404                 xpt_action(ccb);
 1405         }
 1406         
 1407 #if (__FreeBSD_version >= 500000)
 1408         mtx_unlock(&Giant);
 1409 #endif
 1410 
 1411         return(0);      
 1412 }
 1413 
 1414 static  void    hpt_bus_scan_cb(struct cam_periph *periph, union ccb *ccb)
 1415 {
 1416         if (ccb->ccb_h.status != CAM_REQ_CMP)
 1417                 KdPrint(("cam_scan_callback: failure status = %x",ccb->ccb_h.status));
 1418         else
 1419                 KdPrint(("Scan bus successfully!"));
 1420 
 1421         xpt_free_path(ccb->ccb_h.path);
 1422         free(ccb, M_TEMP);
 1423         return;
 1424 }

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