Super User's BSD Cross Reference: /FreeBSD/sys/dev/hpt27xx/hpt27xx_osm_bsd.c

 /*-
 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
 *
 * Copyright (c) 2011 HighPoint Technologies, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD$
 */

#include <dev/hpt27xx/hpt27xx_config.h>

#include <dev/hpt27xx/os_bsd.h>
#include <dev/hpt27xx/hptintf.h>

 static HIM *hpt_match(device_t dev, int scan)
{
 PCI_ID pci_id;
 HIM *him;
 int i;

 for (him = him_list; him; him = him->next) {
 for (i=0; him->get_supported_device_id(i, &pci_id); i++) {
 if (scan && him->get_controller_count)
 him->get_controller_count(&pci_id,0,0);
 if ((pci_get_vendor(dev) == pci_id.vid) &&
 (pci_get_device(dev) == pci_id.did)){
 return (him);
 }
 }
 }
 return (NULL);
}

 static int hpt_probe(device_t dev)
{
 HIM *him;

 him = hpt_match(dev, 0);
 if (him != NULL) {
 KdPrint(("hpt_probe: adapter at PCI %d:%d:%d, IRQ %d",
 pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev), pci_get_irq(dev)
 ));
 device_set_desc(dev, him->name);
 return (BUS_PROBE_DEFAULT);
 }

 return (ENXIO);
}

 static int hpt_attach(device_t dev)
{
 PHBA hba = (PHBA)device_get_softc(dev);
 HIM *him;
 PCI_ID pci_id;
 HPT_UINT size;
 PVBUS vbus;
 PVBUS_EXT vbus_ext;

 KdPrint(("hpt_attach(%d/%d/%d)", pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev)));

 him = hpt_match(dev, 1);
 hba->ext_type = EXT_TYPE_HBA;
 hba->ldm_adapter.him = him;
 pci_enable_busmaster(dev);

 pci_id.vid = pci_get_vendor(dev);
 pci_id.did = pci_get_device(dev);
 pci_id.rev = pci_get_revid(dev);
 pci_id.subsys = (HPT_U32)(pci_get_subdevice(dev)) << 16 | pci_get_subvendor(dev);

 size = him->get_adapter_size(&pci_id);
 hba->ldm_adapter.him_handle = malloc(size, M_DEVBUF, M_WAITOK);
 if (!hba->ldm_adapter.him_handle)
 return ENXIO;

 hba->pcidev = dev;
 hba->pciaddr.tree = 0;
 hba->pciaddr.bus = pci_get_bus(dev);
 hba->pciaddr.device = pci_get_slot(dev);
 hba->pciaddr.function = pci_get_function(dev);

 if (!him->create_adapter(&pci_id, hba->pciaddr, hba->ldm_adapter.him_handle, hba)) {
 free(hba->ldm_adapter.him_handle, M_DEVBUF);
 return ENXIO;
 }

 os_printk("adapter at PCI %d:%d:%d, IRQ %d",
 hba->pciaddr.bus, hba->pciaddr.device, hba->pciaddr.function, pci_get_irq(dev));

 if (!ldm_register_adapter(&hba->ldm_adapter)) {
 size = ldm_get_vbus_size();
 vbus_ext = malloc(sizeof(VBUS_EXT) + size, M_DEVBUF, M_WAITOK);
 if (!vbus_ext) {
 free(hba->ldm_adapter.him_handle, M_DEVBUF);
 return ENXIO;
 }
 memset(vbus_ext, 0, sizeof(VBUS_EXT));
 vbus_ext->ext_type = EXT_TYPE_VBUS;
 ldm_create_vbus((PVBUS)vbus_ext->vbus, vbus_ext);
 ldm_register_adapter(&hba->ldm_adapter);
 }

 ldm_for_each_vbus(vbus, vbus_ext) {
 if (hba->ldm_adapter.vbus==vbus) {
 hba->vbus_ext = vbus_ext;
 hba->next = vbus_ext->hba_list;
 vbus_ext->hba_list = hba;
 break;
 }
 }
 return 0;
}

 /*
 * Maybe we'd better to use the bus_dmamem_alloc to alloc DMA memory,
 * but there are some problems currently (alignment, etc).
 */
 static __inline void *__get_free_pages(int order)
{
 /* don't use low memory - other devices may get starved */
 return contigmalloc(PAGE_SIZE<<order,
 M_DEVBUF, M_WAITOK, BUS_SPACE_MAXADDR_24BIT, BUS_SPACE_MAXADDR, PAGE_SIZE, 0);
}

 static __inline void free_pages(void *p, int order)
{
 contigfree(p, PAGE_SIZE<<order, M_DEVBUF);
}

 static int hpt_alloc_mem(PVBUS_EXT vbus_ext)
{
 PHBA hba;
 struct freelist *f;
 HPT_UINT i;
 void **p;

 for (hba = vbus_ext->hba_list; hba; hba = hba->next)
 hba->ldm_adapter.him->get_meminfo(hba->ldm_adapter.him_handle);

 ldm_get_mem_info((PVBUS)vbus_ext->vbus, 0);

 for (f=vbus_ext->freelist_head; f; f=f->next) {
 KdPrint(("%s: %d*%d=%d bytes",
 f->tag, f->count, f->size, f->count*f->size));
 for (i=0; i<f->count; i++) {
 p = (void **)malloc(f->size, M_DEVBUF, M_WAITOK);
 if (!p) return (ENXIO);
 *p = f->head;
 f->head = p;
 }
 }

 for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
 int order, size, j;

 HPT_ASSERT((f->size & (f->alignment-1))==0);

 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1)
 ;

 KdPrint(("%s: %d*%d=%d bytes, order %d",
 f->tag, f->count, f->size, f->count*f->size, order));
 HPT_ASSERT(f->alignment<=PAGE_SIZE);

 for (i=0; i<f->count;) {
 p = (void **)__get_free_pages(order);
 if (!p) return -1;
 for (j = size/f->size; j && i<f->count; i++,j--) {
 *p = f->head;
 *(BUS_ADDRESS *)(p+1) = (BUS_ADDRESS)vtophys(p);
 f->head = p;
 p = (void **)((unsigned long)p + f->size);
 }
 }
 }

 HPT_ASSERT(PAGE_SIZE==DMAPOOL_PAGE_SIZE);

 for (i=0; i<os_max_cache_pages; i++) {
 p = (void **)__get_free_pages(0);
 if (!p) return -1;
 HPT_ASSERT(((HPT_UPTR)p & (DMAPOOL_PAGE_SIZE-1))==0);
 dmapool_put_page((PVBUS)vbus_ext->vbus, p, (BUS_ADDRESS)vtophys(p));
 }

 return 0;
}

 static void hpt_free_mem(PVBUS_EXT vbus_ext)
{
 struct freelist *f;
 void *p;
 int i;
 BUS_ADDRESS bus;

 for (f=vbus_ext->freelist_head; f; f=f->next) {
#if DBG
 if (f->count!=f->reserved_count) {
 KdPrint(("memory leak for freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
 }
#endif
 while ((p=freelist_get(f)))
 free(p, M_DEVBUF);
 }

 for (i=0; i<os_max_cache_pages; i++) {
 p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus);
 HPT_ASSERT(p);
 free_pages(p, 0);
 }

 for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
 int order, size;
#if DBG
 if (f->count!=f->reserved_count) {
 KdPrint(("memory leak for dma freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
 }
#endif
 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ;

 while ((p=freelist_get_dma(f, &bus))) {
 if (order)
 free_pages(p, order);
 else {
 /* can't free immediately since other blocks in this page may still be in the list */
 if (((HPT_UPTR)p & (PAGE_SIZE-1))==0)
 dmapool_put_page((PVBUS)vbus_ext->vbus, p, bus);
 }
 }
 }

 while ((p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus)))
 free_pages(p, 0);
}

 static int hpt_init_vbus(PVBUS_EXT vbus_ext)
{
 PHBA hba;

 for (hba = vbus_ext->hba_list; hba; hba = hba->next)
 if (!hba->ldm_adapter.him->initialize(hba->ldm_adapter.him_handle)) {
 KdPrint(("fail to initialize %p", hba));
 return -1;
 }

 ldm_initialize_vbus((PVBUS)vbus_ext->vbus, &vbus_ext->hba_list->ldm_adapter);
 return 0;
}

 static void hpt_flush_done(PCOMMAND pCmd)
{
 PVDEV vd = pCmd->target;

 if (mIsArray(vd->type) && vd->u.array.transform && vd!=vd->u.array.transform->target) {
 vd = vd->u.array.transform->target;
 HPT_ASSERT(vd);
 pCmd->target = vd;
 pCmd->Result = RETURN_PENDING;
 vdev_queue_cmd(pCmd);
 return;
 }

 *(int *)pCmd->priv = 1;
 wakeup(pCmd);
}

 /*
 * flush a vdev (without retry).
 */
 static int hpt_flush_vdev(PVBUS_EXT vbus_ext, PVDEV vd)
{
 PCOMMAND pCmd;
 int result = 0, done;
 HPT_UINT count;

 KdPrint(("flusing dev %p", vd));

 hpt_lock_vbus(vbus_ext);

 if (mIsArray(vd->type) && vd->u.array.transform)
 count = max(vd->u.array.transform->source->cmds_per_request,
 vd->u.array.transform->target->cmds_per_request);
 else
 count = vd->cmds_per_request;

 pCmd = ldm_alloc_cmds(vd->vbus, count);

 if (!pCmd) {
 hpt_unlock_vbus(vbus_ext);
 return -1;
 }

 pCmd->type = CMD_TYPE_FLUSH;
 pCmd->flags.hard_flush = 1;
 pCmd->target = vd;
 pCmd->done = hpt_flush_done;
 done = 0;
 pCmd->priv = &done;

 ldm_queue_cmd(pCmd);

 if (!done) {
 while (hpt_sleep(vbus_ext, pCmd, PPAUSE, "hptfls", HPT_OSM_TIMEOUT)) {
 ldm_reset_vbus(vd->vbus);
 }
 }

 KdPrint(("flush result %d", pCmd->Result));

 if (pCmd->Result!=RETURN_SUCCESS)
 result = -1;

 ldm_free_cmds(pCmd);

 hpt_unlock_vbus(vbus_ext);

 return result;
}

 static void hpt_stop_tasks(PVBUS_EXT vbus_ext);
 static void hpt_shutdown_vbus(PVBUS_EXT vbus_ext, int howto)
{
 PVBUS vbus = (PVBUS)vbus_ext->vbus;
 PHBA hba;
 int i;

 KdPrint(("hpt_shutdown_vbus"));

 /* stop all ctl tasks and disable the worker taskqueue */
 hpt_stop_tasks(vbus_ext);
 vbus_ext->worker.ta_context = 0;

 /* flush devices */
 for (i=0; i<osm_max_targets; i++) {
 PVDEV vd = ldm_find_target(vbus, i);
 if (vd) {
 /* retry once */
 if (hpt_flush_vdev(vbus_ext, vd))
 hpt_flush_vdev(vbus_ext, vd);
 }
 }

 hpt_lock_vbus(vbus_ext);
 ldm_shutdown(vbus);
 hpt_unlock_vbus(vbus_ext);

 ldm_release_vbus(vbus);

 for (hba=vbus_ext->hba_list; hba; hba=hba->next)
 bus_teardown_intr(hba->pcidev, hba->irq_res, hba->irq_handle);

 hpt_free_mem(vbus_ext);

 while ((hba=vbus_ext->hba_list)) {
 vbus_ext->hba_list = hba->next;
 free(hba->ldm_adapter.him_handle, M_DEVBUF);
 }
#if (__FreeBSD_version >= 1000510)
 callout_drain(&vbus_ext->timer);
 mtx_destroy(&vbus_ext->lock);
#endif
 free(vbus_ext, M_DEVBUF);
 KdPrint(("hpt_shutdown_vbus done"));
}

 static void __hpt_do_tasks(PVBUS_EXT vbus_ext)
{
 OSM_TASK *tasks;

 tasks = vbus_ext->tasks;
 vbus_ext->tasks = 0;

 while (tasks) {
 OSM_TASK *t = tasks;
 tasks = t->next;
 t->next = 0;
 t->func(vbus_ext->vbus, t->data);
 }
}

 static void hpt_do_tasks(PVBUS_EXT vbus_ext, int pending)
{
 if(vbus_ext){
 hpt_lock_vbus(vbus_ext);
 __hpt_do_tasks(vbus_ext);
 hpt_unlock_vbus(vbus_ext);
 }
}

 static void hpt_action(struct cam_sim *sim, union ccb *ccb);
 static void hpt_poll(struct cam_sim *sim);
 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg);
 static void hpt_pci_intr(void *arg);

 static __inline POS_CMDEXT cmdext_get(PVBUS_EXT vbus_ext)
{
 POS_CMDEXT p = vbus_ext->cmdext_list;
 if (p)
 vbus_ext->cmdext_list = p->next;
 return p;
}

 static __inline void cmdext_put(POS_CMDEXT p)
{
 p->next = p->vbus_ext->cmdext_list;
 p->vbus_ext->cmdext_list = p;
}

 static void hpt_timeout(void *arg)
{
 PCOMMAND pCmd = (PCOMMAND)arg;
 POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;

 KdPrint(("pCmd %p timeout", pCmd));

 ldm_reset_vbus((PVBUS)ext->vbus_ext->vbus);
}

 static void os_cmddone(PCOMMAND pCmd)
{
 POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 union ccb *ccb = ext->ccb;

 KdPrint(("<8>os_cmddone(%p, %d)", pCmd, pCmd->Result));
#if (__FreeBSD_version >= 1000510)
 callout_stop(&ext->timeout);
#else
 untimeout(hpt_timeout, pCmd, ccb->ccb_h.timeout_ch);
#endif
 switch(pCmd->Result) {
 case RETURN_SUCCESS:
 ccb->ccb_h.status = CAM_REQ_CMP;
 break;
 case RETURN_BAD_DEVICE:
 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
 break;
 case RETURN_DEVICE_BUSY:
 ccb->ccb_h.status = CAM_BUSY;
 break;
 case RETURN_INVALID_REQUEST:
 ccb->ccb_h.status = CAM_REQ_INVALID;
 break;
 case RETURN_SELECTION_TIMEOUT:
 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
 break;
 case RETURN_RETRY:
 ccb->ccb_h.status = CAM_BUSY;
 break;
 default:
 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR;
 break;
 }

 if (pCmd->flags.data_in) {
 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTREAD);
 }
 else if (pCmd->flags.data_out) {
 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTWRITE);
 }

 bus_dmamap_unload(ext->vbus_ext->io_dmat, ext->dma_map);

 cmdext_put(ext);
 ldm_free_cmds(pCmd);
 xpt_done(ccb);
}

 static int os_buildsgl(PCOMMAND pCmd, PSG pSg, int logical)
{
 POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 union ccb *ccb = ext->ccb;
#if (__FreeBSD_version >= 1000510)
 if(logical) {
 os_set_sgptr(pSg, (HPT_U8 *)ccb->csio.data_ptr);
 pSg->size = ccb->csio.dxfer_len;
 pSg->eot = 1;
 return TRUE;
 }
#else
 bus_dma_segment_t *sgList = (bus_dma_segment_t *)ccb->csio.data_ptr;
 int idx;

 if(logical) {
 if (ccb->ccb_h.flags & CAM_DATA_PHYS)
 panic("physical address unsupported");

 if (ccb->ccb_h.flags & CAM_SCATTER_VALID) {
 if (ccb->ccb_h.flags & CAM_SG_LIST_PHYS)
 panic("physical address unsupported");

 for (idx = 0; idx < ccb->csio.sglist_cnt; idx++) {
 os_set_sgptr(&pSg[idx], (HPT_U8 *)(HPT_UPTR)sgList[idx].ds_addr);
 pSg[idx].size = sgList[idx].ds_len;
 pSg[idx].eot = (idx==ccb->csio.sglist_cnt-1)? 1 : 0;
 }
 }
 else {
 os_set_sgptr(pSg, (HPT_U8 *)ccb->csio.data_ptr);
 pSg->size = ccb->csio.dxfer_len;
 pSg->eot = 1;
 }
 return TRUE;
 }
#endif
 /* since we have provided physical sg, nobody will ask us to build physical sg */
 HPT_ASSERT(0);
 return FALSE;
}

 static void hpt_io_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
{
 PCOMMAND pCmd = (PCOMMAND)arg;
 POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 PSG psg = pCmd->psg;
 int idx;

 HPT_ASSERT(pCmd->flags.physical_sg);

 if (error)
 panic("busdma error");

 HPT_ASSERT(nsegs<=os_max_sg_descriptors);

 if (nsegs != 0) {
 for (idx = 0; idx < nsegs; idx++, psg++) {
 psg->addr.bus = segs[idx].ds_addr;
 psg->size = segs[idx].ds_len;
 psg->eot = 0;
 }
 psg[-1].eot = 1;

 if (pCmd->flags.data_in) {
 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map,
 BUS_DMASYNC_PREREAD);
 }
 else if (pCmd->flags.data_out) {
 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map,
 BUS_DMASYNC_PREWRITE);
 }
 }
#if (__FreeBSD_version >= 1000510)
 callout_reset(&ext->timeout, HPT_OSM_TIMEOUT, hpt_timeout, pCmd);
#else
 ext->ccb->ccb_h.timeout_ch = timeout(hpt_timeout, pCmd, HPT_OSM_TIMEOUT);
#endif
 ldm_queue_cmd(pCmd);
}

 static void hpt_scsi_io(PVBUS_EXT vbus_ext, union ccb *ccb)
{
 PVBUS vbus = (PVBUS)vbus_ext->vbus;
 PVDEV vd;
 PCOMMAND pCmd;
 POS_CMDEXT ext;
 HPT_U8 *cdb;

 if (ccb->ccb_h.flags & CAM_CDB_POINTER)
 cdb = ccb->csio.cdb_io.cdb_ptr;
 else
 cdb = ccb->csio.cdb_io.cdb_bytes;

 KdPrint(("<8>hpt_scsi_io: ccb %x id %d lun %d cdb %x-%x-%x",
 ccb,
 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
 *(HPT_U32 *)&cdb[0], *(HPT_U32 *)&cdb[4], *(HPT_U32 *)&cdb[8]
 ));

 /* ccb->ccb_h.path_id is not our bus id - don't check it */
 if (ccb->ccb_h.target_lun != 0 ||
 ccb->ccb_h.target_id >= osm_max_targets ||
 (ccb->ccb_h.flags & CAM_CDB_PHYS))
 {
 ccb->ccb_h.status = CAM_TID_INVALID;
 xpt_done(ccb);
 return;
 }

 vd = ldm_find_target(vbus, ccb->ccb_h.target_id);

 if (!vd) {
 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
 xpt_done(ccb);
 return;
 }

 switch (cdb[0]) {
 case TEST_UNIT_READY:
 case START_STOP_UNIT:
 case SYNCHRONIZE_CACHE:
 ccb->ccb_h.status = CAM_REQ_CMP;
 break;

 case INQUIRY:
 {
 PINQUIRYDATA inquiryData;
 memset(ccb->csio.data_ptr, 0, ccb->csio.dxfer_len);
 inquiryData = (PINQUIRYDATA)ccb->csio.data_ptr;

 inquiryData->AdditionalLength = 31;
 inquiryData->CommandQueue = 1;
 memcpy(&inquiryData->VendorId, "HPT ", 8);
 memcpy(&inquiryData->ProductId, "DISK 0_0 ", 16);

 if (vd->target_id / 10) {
 inquiryData->ProductId[7] = (vd->target_id % 100) / 10 + '0';
 inquiryData->ProductId[8] = (vd->target_id % 100) % 10 + '0';
 }
 else
 inquiryData->ProductId[7] = (vd->target_id % 100) % 10 + '0';

 memcpy(&inquiryData->ProductRevisionLevel, "4.00", 4);

 ccb->ccb_h.status = CAM_REQ_CMP;
 }
 break;

 case READ_CAPACITY:
 {
 HPT_U8 *rbuf = ccb->csio.data_ptr;
 HPT_U32 cap;
 HPT_U8 sector_size_shift = 0;
 HPT_U64 new_cap;
 HPT_U32 sector_size = 0;

 if (mIsArray(vd->type))
 sector_size_shift = vd->u.array.sector_size_shift;
 else{
 if(vd->type == VD_RAW){
 sector_size = vd->u.raw.logical_sector_size;
 }

 switch (sector_size) {
 case 0x1000:
 KdPrint(("set 4k setctor size in READ_CAPACITY"));
 sector_size_shift = 3;
 break;
 default:
 break;
 }
 }
 new_cap = vd->capacity >> sector_size_shift;

 if (new_cap > 0xfffffffful)
 cap = 0xffffffff;
 else
 cap = new_cap - 1;

 rbuf[0] = (HPT_U8)(cap>>24);
 rbuf[1] = (HPT_U8)(cap>>16);
 rbuf[2] = (HPT_U8)(cap>>8);
 rbuf[3] = (HPT_U8)cap;
 rbuf[4] = 0;
 rbuf[5] = 0;
 rbuf[6] = 2 << sector_size_shift;
 rbuf[7] = 0;

 ccb->ccb_h.status = CAM_REQ_CMP;
 break;
 }
 case REPORT_LUNS:
 {
 HPT_U8 *rbuf = ccb->csio.data_ptr;
 memset(rbuf, 0, 16);
 rbuf[3] = 8;
 ccb->ccb_h.status = CAM_REQ_CMP;
 break;
 }
 case SERVICE_ACTION_IN:
 {
 HPT_U8 *rbuf = ccb->csio.data_ptr;
 HPT_U64 cap = 0;
 HPT_U8 sector_size_shift = 0;
 HPT_U32 sector_size = 0;

 if(mIsArray(vd->type))
 sector_size_shift = vd->u.array.sector_size_shift;
 else{
 if(vd->type == VD_RAW){
 sector_size = vd->u.raw.logical_sector_size;
 }

 switch (sector_size) {
 case 0x1000:
 KdPrint(("set 4k setctor size in SERVICE_ACTION_IN"));
 sector_size_shift = 3;
 break;
 default:
 break;
 }
 }
 cap = (vd->capacity >> sector_size_shift) - 1;

 rbuf[0] = (HPT_U8)(cap>>56);
 rbuf[1] = (HPT_U8)(cap>>48);
 rbuf[2] = (HPT_U8)(cap>>40);
 rbuf[3] = (HPT_U8)(cap>>32);
 rbuf[4] = (HPT_U8)(cap>>24);
 rbuf[5] = (HPT_U8)(cap>>16);
 rbuf[6] = (HPT_U8)(cap>>8);
 rbuf[7] = (HPT_U8)cap;
 rbuf[8] = 0;
 rbuf[9] = 0;
 rbuf[10] = 2 << sector_size_shift;
 rbuf[11] = 0;

 ccb->ccb_h.status = CAM_REQ_CMP;
 break;
 }

 case READ_6:
 case READ_10:
 case READ_16:
 case WRITE_6:
 case WRITE_10:
 case WRITE_16:
 case 0x13:
 case 0x2f:
 case 0x8f: /* VERIFY_16 */
 {
 HPT_U8 sector_size_shift = 0;
 HPT_U32 sector_size = 0;
 pCmd = ldm_alloc_cmds(vbus, vd->cmds_per_request);
 if(!pCmd){
 KdPrint(("Failed to allocate command!"));
 ccb->ccb_h.status = CAM_BUSY;
 break;
 }

 switch (cdb[0]) {
 case READ_6:
 case WRITE_6:
 case 0x13:
 pCmd->uCmd.Ide.Lba = ((HPT_U32)cdb[1] << 16) | ((HPT_U32)cdb[2] << 8) | (HPT_U32)cdb[3];
 pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[4];
 break;
 case READ_16:
 case WRITE_16:
 case 0x8f: /* VERIFY_16 */
 {
 HPT_U64 block =
 ((HPT_U64)cdb[2]<<56) |
 ((HPT_U64)cdb[3]<<48) |
 ((HPT_U64)cdb[4]<<40) |
 ((HPT_U64)cdb[5]<<32) |
 ((HPT_U64)cdb[6]<<24) |
 ((HPT_U64)cdb[7]<<16) |
 ((HPT_U64)cdb[8]<<8) |
 ((HPT_U64)cdb[9]);
 pCmd->uCmd.Ide.Lba = block;
 pCmd->uCmd.Ide.nSectors = (HPT_U16)cdb[13] | ((HPT_U16)cdb[12]<<8);
 break;
 }

 default:
 pCmd->uCmd.Ide.Lba = (HPT_U32)cdb[5] | ((HPT_U32)cdb[4] << 8) | ((HPT_U32)cdb[3] << 16) | ((HPT_U32)cdb[2] << 24);
 pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[8] | ((HPT_U16)cdb[7]<<8);
 break;
 }

 if(mIsArray(vd->type)) {
 sector_size_shift = vd->u.array.sector_size_shift;
 }
 else{
 if(vd->type == VD_RAW){
 sector_size = vd->u.raw.logical_sector_size;
 }

 switch (sector_size) {
 case 0x1000:
 KdPrint(("<8>resize sector size from 4k to 512"));
 sector_size_shift = 3;
 break;
 default:
 break;
 }
 }
 pCmd->uCmd.Ide.Lba <<= sector_size_shift;
 pCmd->uCmd.Ide.nSectors <<= sector_size_shift;


 switch (cdb[0]) {
 case READ_6:
 case READ_10:
 case READ_16:
 pCmd->flags.data_in = 1;
 break;
 case WRITE_6:
 case WRITE_10:
 case WRITE_16:
 pCmd->flags.data_out = 1;
 break;
 }
 pCmd->priv = ext = cmdext_get(vbus_ext);
 HPT_ASSERT(ext);
 ext->ccb = ccb;
 pCmd->target = vd;
 pCmd->done = os_cmddone;
 pCmd->buildsgl = os_buildsgl;

 pCmd->psg = ext->psg;
#if (__FreeBSD_version < 1000510)
 if (ccb->ccb_h.flags & CAM_SCATTER_VALID) {
 int idx;
 bus_dma_segment_t *sgList = (bus_dma_segment_t *)ccb->csio.data_ptr;

 if (ccb->ccb_h.flags & CAM_SG_LIST_PHYS)
 pCmd->flags.physical_sg = 1;

 for (idx = 0; idx < ccb->csio.sglist_cnt; idx++) {
 pCmd->psg[idx].addr.bus = sgList[idx].ds_addr;
 pCmd->psg[idx].size = sgList[idx].ds_len;
 pCmd->psg[idx].eot = (idx==ccb->csio.sglist_cnt-1)? 1 : 0;
 }

 ccb->ccb_h.timeout_ch = timeout(hpt_timeout, pCmd, HPT_OSM_TIMEOUT);
 ldm_queue_cmd(pCmd);
 }
 else
#endif
 {
 int error;
 pCmd->flags.physical_sg = 1;
#if (__FreeBSD_version >= 1000510)
 error = bus_dmamap_load_ccb(vbus_ext->io_dmat,
 ext->dma_map, ccb,
 hpt_io_dmamap_callback, pCmd,
 BUS_DMA_WAITOK
 );
#else
 error = bus_dmamap_load(vbus_ext->io_dmat,
 ext->dma_map,
 ccb->csio.data_ptr, ccb->csio.dxfer_len,
 hpt_io_dmamap_callback, pCmd,
 BUS_DMA_WAITOK
 );
#endif
 KdPrint(("<8>bus_dmamap_load return %d", error));
 if (error && error!=EINPROGRESS) {
 os_printk("bus_dmamap_load error %d", error);
 cmdext_put(ext);
 ldm_free_cmds(pCmd);
 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
 xpt_done(ccb);
 }
 }
 return;
 }

 default:
 ccb->ccb_h.status = CAM_REQ_INVALID;
 break;
 }

 xpt_done(ccb);
 return;
}

 static void hpt_action(struct cam_sim *sim, union ccb *ccb)
{
 PVBUS_EXT vbus_ext = (PVBUS_EXT)cam_sim_softc(sim);

 KdPrint(("<8>hpt_action(fn=%d, id=%d)", ccb->ccb_h.func_code, ccb->ccb_h.target_id));

#if (__FreeBSD_version >= 1000510)
 hpt_assert_vbus_locked(vbus_ext);
#endif
 switch (ccb->ccb_h.func_code) {

#if (__FreeBSD_version < 1000510)
 case XPT_SCSI_IO:
 hpt_lock_vbus(vbus_ext);
 hpt_scsi_io(vbus_ext, ccb);
 hpt_unlock_vbus(vbus_ext);
 return;

 case XPT_RESET_BUS:
 hpt_lock_vbus(vbus_ext);
 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
 hpt_unlock_vbus(vbus_ext);
 break;
#else
 case XPT_SCSI_IO:
 hpt_scsi_io(vbus_ext, ccb);
 return;

 case XPT_RESET_BUS:
 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
 break;
#endif
 case XPT_GET_TRAN_SETTINGS:
 case XPT_SET_TRAN_SETTINGS:
 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
 break;

 case XPT_CALC_GEOMETRY:
 ccb->ccg.heads = 255;
 ccb->ccg.secs_per_track = 63;
 ccb->ccg.cylinders = ccb->ccg.volume_size / (ccb->ccg.heads * ccb->ccg.secs_per_track);
 ccb->ccb_h.status = CAM_REQ_CMP;
 break;

 case XPT_PATH_INQ:
 {
 struct ccb_pathinq *cpi = &ccb->cpi;

 cpi->version_num = 1;
 cpi->hba_inquiry = PI_SDTR_ABLE;
 cpi->target_sprt = 0;
 cpi->hba_misc = PIM_NOBUSRESET;
 cpi->hba_eng_cnt = 0;
 cpi->max_target = osm_max_targets;
 cpi->max_lun = 0;
 cpi->unit_number = cam_sim_unit(sim);
 cpi->bus_id = cam_sim_bus(sim);
 cpi->initiator_id = osm_max_targets;
 cpi->base_transfer_speed = 3300;

 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
 strlcpy(cpi->hba_vid, "HPT ", HBA_IDLEN);
 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
 cpi->transport = XPORT_SPI;
 cpi->transport_version = 2;
 cpi->protocol = PROTO_SCSI;
 cpi->protocol_version = SCSI_REV_2;
 cpi->ccb_h.status = CAM_REQ_CMP;
 break;
 }

 default:
 ccb->ccb_h.status = CAM_REQ_INVALID;
 break;
 }

 xpt_done(ccb);
 return;
}

 static void hpt_pci_intr(void *arg)
{
 PVBUS_EXT vbus_ext = (PVBUS_EXT)arg;
 hpt_lock_vbus(vbus_ext);
 ldm_intr((PVBUS)vbus_ext->vbus);
 hpt_unlock_vbus(vbus_ext);
}

 static void hpt_poll(struct cam_sim *sim)
{
#if (__FreeBSD_version < 1000510)
 hpt_pci_intr(cam_sim_softc(sim));
#else
 PVBUS_EXT vbus_ext = (PVBUS_EXT)cam_sim_softc(sim);

 hpt_assert_vbus_locked(vbus_ext);
 ldm_intr((PVBUS)vbus_ext->vbus);
#endif
}

 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg)
{
 KdPrint(("<8>hpt_async"));
}

 static int hpt_shutdown(device_t dev)
{
 KdPrint(("hpt_shutdown(dev=%p)", dev));
 return 0;
}

 static int hpt_detach(device_t dev)
{
 /* we don't allow the driver to be unloaded. */
 return EBUSY;
}

 static void hpt_ioctl_done(struct _IOCTL_ARG *arg)
{
 arg->ioctl_cmnd = 0;
 wakeup(arg);
}

 static void __hpt_do_ioctl(PVBUS_EXT vbus_ext, IOCTL_ARG *ioctl_args)
{
 ioctl_args->result = -1;
 ioctl_args->done = hpt_ioctl_done;
 ioctl_args->ioctl_cmnd = (void *)1;

 hpt_lock_vbus(vbus_ext);
 ldm_ioctl((PVBUS)vbus_ext->vbus, ioctl_args);

 while (ioctl_args->ioctl_cmnd) {
 if (hpt_sleep(vbus_ext, ioctl_args, PPAUSE, "hptctl", HPT_OSM_TIMEOUT)==0)
 break;
 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
 __hpt_do_tasks(vbus_ext);
 }

 /* KdPrint(("ioctl %x result %d", ioctl_args->dwIoControlCode, ioctl_args->result)); */

 hpt_unlock_vbus(vbus_ext);
}

 static void hpt_do_ioctl(IOCTL_ARG *ioctl_args)
{
 PVBUS vbus;
 PVBUS_EXT vbus_ext;

 ldm_for_each_vbus(vbus, vbus_ext) {
 __hpt_do_ioctl(vbus_ext, ioctl_args);
 if (ioctl_args->result!=HPT_IOCTL_RESULT_WRONG_VBUS)
 return;
 }
}

#define HPT_DO_IOCTL(code, inbuf, insize, outbuf, outsize) ({\
 IOCTL_ARG arg;\
 arg.dwIoControlCode = code;\
 arg.lpInBuffer = inbuf;\
 arg.lpOutBuffer = outbuf;\
 arg.nInBufferSize = insize;\
 arg.nOutBufferSize = outsize;\
 arg.lpBytesReturned = 0;\
 hpt_do_ioctl(&arg);\
 arg.result;\
})

#define DEVICEID_VALID(id) ((id) && ((HPT_U32)(id)!=0xffffffff))

 static int hpt_get_logical_devices(DEVICEID * pIds, int nMaxCount)
{
 int i;
 HPT_U32 count = nMaxCount-1;

 if (HPT_DO_IOCTL(HPT_IOCTL_GET_LOGICAL_DEVICES,
 &count, sizeof(HPT_U32), pIds, sizeof(DEVICEID)*nMaxCount))
 return -1;

 nMaxCount = (int)pIds[0];
 for (i=0; i<nMaxCount; i++) pIds[i] = pIds[i+1];
 return nMaxCount;
}

 static int hpt_get_device_info_v3(DEVICEID id, PLOGICAL_DEVICE_INFO_V3 pInfo)
{
 return HPT_DO_IOCTL(HPT_IOCTL_GET_DEVICE_INFO_V3,
 &id, sizeof(DEVICEID), pInfo, sizeof(LOGICAL_DEVICE_INFO_V3));
}

 /* not belong to this file logically, but we want to use ioctl interface */
 static int __hpt_stop_tasks(PVBUS_EXT vbus_ext, DEVICEID id)
{
 LOGICAL_DEVICE_INFO_V3 devinfo;
 int i, result;
 DEVICEID param[2] = { id, 0 };

 if (hpt_get_device_info_v3(id, &devinfo))
 return -1;

 if (devinfo.Type!=LDT_ARRAY)
 return -1;

 if (devinfo.u.array.Flags & ARRAY_FLAG_REBUILDING)
 param[1] = AS_REBUILD_ABORT;
 else if (devinfo.u.array.Flags & ARRAY_FLAG_VERIFYING)
 param[1] = AS_VERIFY_ABORT;
 else if (devinfo.u.array.Flags & ARRAY_FLAG_INITIALIZING)
 param[1] = AS_INITIALIZE_ABORT;
 else if (devinfo.u.array.Flags & ARRAY_FLAG_TRANSFORMING)
 param[1] = AS_TRANSFORM_ABORT;
 else
 return -1;

 KdPrint(("SET_ARRAY_STATE(%x, %d)", param[0], param[1]));
 result = HPT_DO_IOCTL(HPT_IOCTL_SET_ARRAY_STATE,
 param, sizeof(param), 0, 0);

 for (i=0; i<devinfo.u.array.nDisk; i++)
 if (DEVICEID_VALID(devinfo.u.array.Members[i]))
 __hpt_stop_tasks(vbus_ext, devinfo.u.array.Members[i]);

 return result;
}

 static void hpt_stop_tasks(PVBUS_EXT vbus_ext)
{
 DEVICEID ids[32];
 int i, count;

 count = hpt_get_logical_devices((DEVICEID *)&ids, sizeof(ids)/sizeof(ids[0]));

 for (i=0; i<count; i++)
 __hpt_stop_tasks(vbus_ext, ids[i]);
}

 static d_open_t hpt_open;
 static d_close_t hpt_close;
 static d_ioctl_t hpt_ioctl;
 static int hpt_rescan_bus(void);

 static struct cdevsw hpt_cdevsw = {
 .d_open = hpt_open,
 .d_close = hpt_close,
 .d_ioctl = hpt_ioctl,
 .d_name = driver_name,
 .d_version = D_VERSION,
};

 static struct intr_config_hook hpt_ich;

 /*
 * hpt_final_init will be called after all hpt_attach.
 */
 static void hpt_final_init(void *dummy)
{
 int i,unit_number=0;
 PVBUS_EXT vbus_ext;
 PVBUS vbus;
 PHBA hba;

 /* Clear the config hook */
 config_intrhook_disestablish(&hpt_ich);

 /* allocate memory */
 i = 0;
 ldm_for_each_vbus(vbus, vbus_ext) {
 if (hpt_alloc_mem(vbus_ext)) {
 os_printk("out of memory");
 return;
 }
 i++;
 }

 if (!i) {
 if (bootverbose)
 os_printk("no controller detected.");
 return;
 }

 /* initializing hardware */
 ldm_for_each_vbus(vbus, vbus_ext) {
 /* make timer available here */
 mtx_init(&vbus_ext->lock, "hptsleeplock", NULL, MTX_DEF);
#if (__FreeBSD_version < 1000510)
 callout_handle_init(&vbus_ext->timer);
#else
 callout_init_mtx(&vbus_ext->timer, &vbus_ext->lock, 0);
#endif
 if (hpt_init_vbus(vbus_ext)) {
 os_printk("fail to initialize hardware");
 break; /* FIXME */
 }
 }

 /* register CAM interface */
 ldm_for_each_vbus(vbus, vbus_ext) {
 struct cam_devq *devq;
 struct ccb_setasync ccb;

 if (bus_dma_tag_create(NULL,/* parent */
 4, /* alignment */
 BUS_SPACE_MAXADDR_32BIT+1, /* boundary */
 BUS_SPACE_MAXADDR, /* lowaddr */
 BUS_SPACE_MAXADDR, /* highaddr */
 NULL, NULL, /* filter, filterarg */
 PAGE_SIZE * (os_max_sg_descriptors-1), /* maxsize */
 os_max_sg_descriptors, /* nsegments */
 0x10000, /* maxsegsize */
 BUS_DMA_WAITOK, /* flags */
 busdma_lock_mutex, /* lockfunc */
 &vbus_ext->lock, /* lockfuncarg */
 &vbus_ext->io_dmat /* tag */))
 {
 return ;
 }

 for (i=0; i<os_max_queue_comm; i++) {
 POS_CMDEXT ext = (POS_CMDEXT)malloc(sizeof(OS_CMDEXT), M_DEVBUF, M_WAITOK);
 if (!ext) {
 os_printk("Can't alloc cmdext(%d)", i);
 return ;
 }
 ext->vbus_ext = vbus_ext;
 ext->next = vbus_ext->cmdext_list;
 vbus_ext->cmdext_list = ext;

 if (bus_dmamap_create(vbus_ext->io_dmat, 0, &ext->dma_map)) {
 os_printk("Can't create dma map(%d)", i);
 return ;
 }
#if (__FreeBSD_version >= 1000510)
 callout_init_mtx(&ext->timeout, &vbus_ext->lock, 0);
#endif
 }

 if ((devq = cam_simq_alloc(os_max_queue_comm)) == NULL) {
 os_printk("cam_simq_alloc failed");
 return ;
 }
#if (__FreeBSD_version >= 1000510)
 vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name,
 vbus_ext, unit_number, &vbus_ext->lock, os_max_queue_comm, /*tagged*/8, devq);

#else
 vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name,
 vbus_ext, unit_number, &Giant, os_max_queue_comm, /*tagged*/8, devq);
#endif
 unit_number++;
 if (!vbus_ext->sim) {
 os_printk("cam_sim_alloc failed");
 cam_simq_free(devq);
 return ;
 }

 hpt_lock_vbus(vbus_ext);
 if (xpt_bus_register(vbus_ext->sim, NULL, 0) != CAM_SUCCESS) {
 hpt_unlock_vbus(vbus_ext);
 os_printk("xpt_bus_register failed");
 cam_sim_free(vbus_ext->sim, /*free devq*/ TRUE);
 vbus_ext->sim = NULL;
 return ;
 }

 if (xpt_create_path(&vbus_ext->path, /*periph */ NULL,
 cam_sim_path(vbus_ext->sim), CAM_TARGET_WILDCARD,
 CAM_LUN_WILDCARD) != CAM_REQ_CMP)
 {
 hpt_unlock_vbus(vbus_ext);
 os_printk("xpt_create_path failed");
 xpt_bus_deregister(cam_sim_path(vbus_ext->sim));
 cam_sim_free(vbus_ext->sim, /*free_devq*/TRUE);
 vbus_ext->sim = NULL;
 return ;
 }

 xpt_setup_ccb(&ccb.ccb_h, vbus_ext->path, /*priority*/5);
 ccb.ccb_h.func_code = XPT_SASYNC_CB;
 ccb.event_enable = AC_LOST_DEVICE;
 ccb.callback = hpt_async;
 ccb.callback_arg = vbus_ext;
 xpt_action((union ccb *)&ccb);
 hpt_unlock_vbus(vbus_ext);

 for (hba = vbus_ext->hba_list; hba; hba = hba->next) {
 int rid = 0;
 if ((hba->irq_res = bus_alloc_resource_any(hba->pcidev,
 SYS_RES_IRQ, &rid, RF_SHAREABLE | RF_ACTIVE)) == NULL)
 {
 os_printk("can't allocate interrupt");
 return ;
 }
#if (__FreeBSD_version >= 1000510)
 if (bus_setup_intr(hba->pcidev, hba->irq_res, INTR_TYPE_CAM | INTR_MPSAFE,
#else
 if (bus_setup_intr(hba->pcidev, hba->irq_res, INTR_TYPE_CAM,
#endif
 NULL, hpt_pci_intr, vbus_ext, &hba->irq_handle))
 {
 os_printk("can't set up interrupt");
 return ;
 }
 hba->ldm_adapter.him->intr_control(hba->ldm_adapter.him_handle, HPT_TRUE);

 }

 vbus_ext->shutdown_eh = EVENTHANDLER_REGISTER(shutdown_final,
 hpt_shutdown_vbus, vbus_ext, SHUTDOWN_PRI_DEFAULT);
 if (!vbus_ext->shutdown_eh)
 os_printk("Shutdown event registration failed");
 }

 ldm_for_each_vbus(vbus, vbus_ext) {
 TASK_INIT(&vbus_ext->worker, 0, (task_fn_t *)hpt_do_tasks, vbus_ext);
 if (vbus_ext->tasks)
 TASK_ENQUEUE(&vbus_ext->worker);
 }

 make_dev(&hpt_cdevsw, DRIVER_MINOR, UID_ROOT, GID_OPERATOR,
 S_IRUSR | S_IWUSR, "%s", driver_name);
}

#if defined(KLD_MODULE)

 typedef struct driverlink *driverlink_t;
 struct driverlink {
 kobj_class_t driver;
 TAILQ_ENTRY(driverlink) link; /* list of drivers in devclass */
};

 typedef TAILQ_HEAD(driver_list, driverlink) driver_list_t;

 struct devclass {
 TAILQ_ENTRY(devclass) link;
 devclass_t parent; /* parent in devclass hierarchy */
 driver_list_t drivers; /* bus devclasses store drivers for bus */
 char *name;
 device_t *devices; /* array of devices indexed by unit */
 int maxunit; /* size of devices array */
};

 static void override_kernel_driver(void)
{
 driverlink_t dl, dlfirst;
 driver_t *tmpdriver;
 devclass_t dc = devclass_find("pci");

 if (dc){
 dlfirst = TAILQ_FIRST(&dc->drivers);
 for (dl = dlfirst; dl; dl = TAILQ_NEXT(dl, link)) {
 if(strcmp(dl->driver->name, driver_name) == 0) {
 tmpdriver=dl->driver;
 dl->driver=dlfirst->driver;
 dlfirst->driver=tmpdriver;
 break;
 }
 }
 }
}

#else
#define override_kernel_driver()
#endif

 static void hpt_init(void *dummy)
{
 if (bootverbose)
 os_printk("%s %s", driver_name_long, driver_ver);

 override_kernel_driver();
 init_config();

 hpt_ich.ich_func = hpt_final_init;
 hpt_ich.ich_arg = NULL;
 if (config_intrhook_establish(&hpt_ich) != 0) {
 printf("%s: cannot establish configuration hook\n",
 driver_name_long);
 }

}
 SYSINIT(hptinit, SI_SUB_CONFIGURE, SI_ORDER_FIRST, hpt_init, NULL);

 /*
 * CAM driver interface
 */
 static device_method_t driver_methods[] = {
 /* Device interface */
 DEVMETHOD(device_probe, hpt_probe),
 DEVMETHOD(device_attach, hpt_attach),
 DEVMETHOD(device_detach, hpt_detach),
 DEVMETHOD(device_shutdown, hpt_shutdown),
 { 0, 0 }
};

 static driver_t hpt_pci_driver = {
 driver_name,
 driver_methods,
 sizeof(HBA)
};

 static devclass_t hpt_devclass;

#ifndef TARGETNAME
#error "no TARGETNAME found"
#endif

 /* use this to make TARGETNAME be expanded */
#define __DRIVER_MODULE(p1, p2, p3, p4, p5, p6) DRIVER_MODULE(p1, p2, p3, p4, p5, p6)
#define __MODULE_VERSION(p1, p2) MODULE_VERSION(p1, p2)
#define __MODULE_DEPEND(p1, p2, p3, p4, p5) MODULE_DEPEND(p1, p2, p3, p4, p5)
 __DRIVER_MODULE(TARGETNAME, pci, hpt_pci_driver, hpt_devclass, 0, 0);
 __MODULE_VERSION(TARGETNAME, 1);
 __MODULE_DEPEND(TARGETNAME, cam, 1, 1, 1);

 static int hpt_open(struct cdev *dev, int flags, int devtype, struct thread *td)
{
 return 0;
}

 static int hpt_close(struct cdev *dev, int flags, int devtype, struct thread *td)
{
 return 0;
}

 static int hpt_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag, struct thread *td)
{
 PHPT_IOCTL_PARAM piop=(PHPT_IOCTL_PARAM)data;
 IOCTL_ARG ioctl_args;
 HPT_U32 bytesReturned = 0;

 switch (cmd){
 case HPT_DO_IOCONTROL:
 {
 if (piop->Magic == HPT_IOCTL_MAGIC || piop->Magic == HPT_IOCTL_MAGIC32) {
 KdPrint(("<8>ioctl=%x in=%p len=%d out=%p len=%d\n",
 piop->dwIoControlCode,
 piop->lpInBuffer,
 piop->nInBufferSize,
 piop->lpOutBuffer,
 piop->nOutBufferSize));

 memset(&ioctl_args, 0, sizeof(ioctl_args));

 ioctl_args.dwIoControlCode = piop->dwIoControlCode;
 ioctl_args.nInBufferSize = piop->nInBufferSize;
 ioctl_args.nOutBufferSize = piop->nOutBufferSize;
 ioctl_args.lpBytesReturned = &bytesReturned;

 if (ioctl_args.nInBufferSize) {
 ioctl_args.lpInBuffer = malloc(ioctl_args.nInBufferSize, M_DEVBUF, M_WAITOK);
 if (!ioctl_args.lpInBuffer)
 goto invalid;
 if (copyin((void*)piop->lpInBuffer,
 ioctl_args.lpInBuffer, piop->nInBufferSize))
 goto invalid;
 }

 if (ioctl_args.nOutBufferSize) {
 ioctl_args.lpOutBuffer = malloc(ioctl_args.nOutBufferSize, M_DEVBUF, M_WAITOK | M_ZERO);
 if (!ioctl_args.lpOutBuffer)
 goto invalid;
 }

#if __FreeBSD_version < 1000510
 mtx_lock(&Giant);
#endif

 hpt_do_ioctl(&ioctl_args);

#if __FreeBSD_version < 1000510
 mtx_unlock(&Giant);
#endif

 if (ioctl_args.result==HPT_IOCTL_RESULT_OK) {
 if (piop->nOutBufferSize) {
 if (copyout(ioctl_args.lpOutBuffer,
 (void*)piop->lpOutBuffer, piop->nOutBufferSize))
 goto invalid;
 }
 if (piop->lpBytesReturned) {
 if (copyout(&bytesReturned,
 (void*)piop->lpBytesReturned, sizeof(HPT_U32)))
 goto invalid;
 }
 if (ioctl_args.lpInBuffer) free(ioctl_args.lpInBuffer, M_DEVBUF);
 if (ioctl_args.lpOutBuffer) free(ioctl_args.lpOutBuffer, M_DEVBUF);
 return 0;
 }
 invalid:
 if (ioctl_args.lpInBuffer) free(ioctl_args.lpInBuffer, M_DEVBUF);
 if (ioctl_args.lpOutBuffer) free(ioctl_args.lpOutBuffer, M_DEVBUF);
 return EFAULT;
 }
 return EFAULT;
 }

 case HPT_SCAN_BUS:
 {
 return hpt_rescan_bus();
 }
 default:
 KdPrint(("invalid command!"));
 return EFAULT;
 }

}

 static int hpt_rescan_bus(void)
{
 union ccb *ccb;
 PVBUS vbus;
 PVBUS_EXT vbus_ext;
#if (__FreeBSD_version < 1000510)
 mtx_lock(&Giant);
#endif
 ldm_for_each_vbus(vbus, vbus_ext) {
 if ((ccb = xpt_alloc_ccb()) == NULL)
 {
 return(ENOMEM);
 }
#if (__FreeBSD_version < 1000510)
 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, cam_sim_path(vbus_ext->sim),
#else
 if (xpt_create_path(&ccb->ccb_h.path, NULL, cam_sim_path(vbus_ext->sim),
#endif
 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP)
 {
 xpt_free_ccb(ccb);
 return(EIO);
 }
 xpt_rescan(ccb);
 }
#if (__FreeBSD_version < 1000510)
 mtx_unlock(&Giant);
#endif
 return(0);
}

 

Indexes created Tue Nov 11 03:55:12 PST 2025