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

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2004-2005 HighPoint Technologies, Inc.
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   26  * SUCH DAMAGE.
   27  */
   28 
   29 #include <sys/cdefs.h>
   30 __FBSDID("$FreeBSD$");
   31  
   32 #include <sys/param.h>
   33 #include <sys/systm.h>
   34 #include <sys/kernel.h>
   35 #include <sys/bus.h>
   36 #include <sys/malloc.h>
   37 #include <sys/resource.h>
   38 #include <sys/time.h>
   39 #include <sys/callout.h>
   40 #include <sys/signalvar.h>
   41 #include <sys/eventhandler.h>
   42 #include <sys/proc.h>
   43 #include <sys/kthread.h>
   44 
   45 #include <sys/mutex.h>
   46 #include <sys/module.h>
   47 #include <sys/sx.h>
   48 
   49 #include <dev/pci/pcireg.h>
   50 #include <dev/pci/pcivar.h>
   51 
   52 #ifndef __KERNEL__
   53 #define __KERNEL__
   54 #endif
   55 
   56 #include <dev/hptmv/global.h>
   57 #include <dev/hptmv/hptintf.h>
   58 #include <dev/hptmv/osbsd.h>
   59 #include <dev/hptmv/access601.h>
   60 
   61 
   62 #ifdef DEBUG
   63 #ifdef DEBUG_LEVEL
   64 int hpt_dbg_level = DEBUG_LEVEL;
   65 #else 
   66 int hpt_dbg_level = 0;
   67 #endif
   68 #endif
   69 
   70 #define MV_ERROR printf
   71 
   72 /*
   73  * CAM SIM entry points
   74  */
   75 static int      hpt_probe (device_t dev);
   76 static void launch_worker_thread(void);
   77 static int      hpt_attach(device_t dev);
   78 static int      hpt_detach(device_t dev);
   79 static int      hpt_shutdown(device_t dev);
   80 static void hpt_poll(struct cam_sim *sim);
   81 static void hpt_intr(void *arg);
   82 static void hpt_async(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg);
   83 static void hpt_action(struct cam_sim *sim, union ccb *ccb);
   84 
   85 static device_method_t driver_methods[] = {
   86         /* Device interface */
   87         DEVMETHOD(device_probe,         hpt_probe),
   88         DEVMETHOD(device_attach,        hpt_attach),
   89         DEVMETHOD(device_detach,        hpt_detach),
   90 
   91         DEVMETHOD(device_shutdown,      hpt_shutdown),
   92         DEVMETHOD_END
   93 };
   94 
   95 static driver_t hpt_pci_driver = {
   96         __str(PROC_DIR_NAME),
   97         driver_methods,
   98         sizeof(IAL_ADAPTER_T)
   99 };
  100 
  101 #define __DRIVER_MODULE(p1, p2, p3, p4, p5) DRIVER_MODULE(p1, p2, p3, p4, p5)
  102 __DRIVER_MODULE(PROC_DIR_NAME, pci, hpt_pci_driver, 0, 0);
  103 MODULE_DEPEND(PROC_DIR_NAME, cam, 1, 1, 1);
  104 
  105 #define ccb_ccb_ptr spriv_ptr0
  106 #define ccb_adapter ccb_h.spriv_ptr1
  107 
  108 static void SetInquiryData(PINQUIRYDATA inquiryData, PVDevice pVDev);
  109 static void HPTLIBAPI OsSendCommand (_VBUS_ARG union ccb * ccb);
  110 static void HPTLIBAPI fOsCommandDone(_VBUS_ARG PCommand pCmd);
  111 static void ccb_done(union ccb *ccb);
  112 static void hpt_queue_ccb(union ccb **ccb_Q, union ccb *ccb);
  113 static void hpt_free_ccb(union ccb **ccb_Q, union ccb *ccb);
  114 static void hpt_intr_locked(IAL_ADAPTER_T *pAdapter);
  115 static void     hptmv_free_edma_queues(IAL_ADAPTER_T *pAdapter);
  116 static void     hptmv_free_channel(IAL_ADAPTER_T *pAdapter, MV_U8 channelNum);
  117 static void     handleEdmaError(_VBUS_ARG PCommand pCmd);
  118 static int      hptmv_init_channel(IAL_ADAPTER_T *pAdapter, MV_U8 channelNum);
  119 static int      fResetActiveCommands(PVBus _vbus_p);
  120 static void     fRegisterVdevice(IAL_ADAPTER_T *pAdapter);
  121 static int      hptmv_allocate_edma_queues(IAL_ADAPTER_T *pAdapter);
  122 static void     hptmv_handle_event_disconnect(void *data);
  123 static void     hptmv_handle_event_connect(void *data);
  124 static int      start_channel(IAL_ADAPTER_T *pAdapter, MV_U8 channelNum);
  125 static void     init_vdev_params(IAL_ADAPTER_T *pAdapter, MV_U8 channel);
  126 static int      hptmv_parse_identify_results(MV_SATA_CHANNEL *pMvSataChannel);
  127 static int HPTLIBAPI fOsBuildSgl(_VBUS_ARG PCommand pCmd, FPSCAT_GATH pSg,
  128     int logical);
  129 static MV_BOOLEAN CommandCompletionCB(MV_SATA_ADAPTER *pMvSataAdapter,
  130     MV_U8 channelNum, MV_COMPLETION_TYPE comp_type, MV_VOID_PTR commandId,
  131     MV_U16 responseFlags, MV_U32 timeStamp,
  132     MV_STORAGE_DEVICE_REGISTERS *registerStruct);
  133 static MV_BOOLEAN hptmv_event_notify(MV_SATA_ADAPTER *pMvSataAdapter,
  134     MV_EVENT_TYPE eventType, MV_U32 param1, MV_U32 param2);
  135 
  136 #define ccb_ccb_ptr spriv_ptr0
  137 #define ccb_adapter ccb_h.spriv_ptr1
  138 
  139 static struct sx hptmv_list_lock;
  140 SX_SYSINIT(hptmv_list_lock, &hptmv_list_lock, "hptmv list");
  141 IAL_ADAPTER_T *gIal_Adapter = NULL;
  142 IAL_ADAPTER_T *pCurAdapter = NULL;
  143 static MV_SATA_CHANNEL gMvSataChannels[MAX_VBUS][MV_SATA_CHANNELS_NUM];
  144 
  145 typedef struct st_HPT_DPC {
  146         IAL_ADAPTER_T *pAdapter;
  147         void (*dpc)(IAL_ADAPTER_T *, void *, UCHAR);
  148         void *arg;
  149         UCHAR flags;
  150 } ST_HPT_DPC;
  151 
  152 #define MAX_DPC 16
  153 UCHAR DPC_Request_Nums = 0; 
  154 static ST_HPT_DPC DpcQueue[MAX_DPC];
  155 static int DpcQueue_First=0;
  156 static int DpcQueue_Last = 0;
  157 static struct mtx DpcQueue_Lock;
  158 MTX_SYSINIT(hpmtv_dpc_lock, &DpcQueue_Lock, "hptmv dpc", MTX_DEF);
  159 
  160 char DRIVER_VERSION[] = "v1.16";
  161 
  162 /*******************************************************************************
  163  *      Name:   hptmv_free_channel
  164  *
  165  *      Description:    free allocated queues for the given channel
  166  *
  167  *      Parameters:     pMvSataAdapter - pointer to the RR18xx controller this 
  168  *                                      channel connected to. 
  169  *                      channelNum - channel number. 
  170  *     
  171  ******************************************************************************/
  172 static void
  173 hptmv_free_channel(IAL_ADAPTER_T *pAdapter, MV_U8 channelNum)
  174 {
  175         HPT_ASSERT(channelNum < MV_SATA_CHANNELS_NUM);
  176         pAdapter->mvSataAdapter.sataChannel[channelNum] = NULL;
  177 }
  178 
  179 static void failDevice(PVDevice pVDev)
  180 {
  181         PVBus _vbus_p = pVDev->pVBus;
  182         IAL_ADAPTER_T *pAdapter = (IAL_ADAPTER_T *)_vbus_p->OsExt;
  183         
  184         pVDev->u.disk.df_on_line = 0;
  185         pVDev->vf_online = 0;
  186         if (pVDev->pfnDeviceFailed) 
  187                 CallWhenIdle(_VBUS_P (DPC_PROC)pVDev->pfnDeviceFailed, pVDev);
  188 
  189         fNotifyGUI(ET_DEVICE_REMOVED, pVDev);
  190 
  191 #ifndef FOR_DEMO
  192         if (pAdapter->ver_601==2 && !pAdapter->beeping) {
  193                 pAdapter->beeping = 1;
  194                 BeepOn(pAdapter->mvSataAdapter.adapterIoBaseAddress);
  195                 set_fail_led(&pAdapter->mvSataAdapter, pVDev->u.disk.mv->channelNumber, 1);
  196         }
  197 #endif
  198 }
  199 
  200 int MvSataResetChannel(MV_SATA_ADAPTER *pMvSataAdapter, MV_U8 channel);
  201 
  202 static void
  203 handleEdmaError(_VBUS_ARG PCommand pCmd)
  204 {
  205         PDevice pDevice = &pCmd->pVDevice->u.disk;
  206         MV_SATA_ADAPTER * pSataAdapter = pDevice->mv->mvSataAdapter;
  207 
  208         if (!pDevice->df_on_line) {
  209                 KdPrint(("Device is offline"));
  210                 pCmd->Result = RETURN_BAD_DEVICE;
  211                 CallAfterReturn(_VBUS_P (DPC_PROC)pCmd->pfnCompletion, pCmd);   
  212                 return;
  213         }
  214 
  215         if (pCmd->RetryCount++>5) {
  216                 hpt_printk(("too many retries on channel(%d)\n", pDevice->mv->channelNumber));
  217 failed:
  218                 failDevice(pCmd->pVDevice);
  219                 pCmd->Result = RETURN_IDE_ERROR;
  220                 CallAfterReturn(_VBUS_P (DPC_PROC)pCmd->pfnCompletion, pCmd);   
  221                 return;
  222         }
  223 
  224         /* reset the channel and retry the command */
  225         if (MvSataResetChannel(pSataAdapter, pDevice->mv->channelNumber))
  226                 goto failed;
  227 
  228         fNotifyGUI(ET_DEVICE_ERROR, Map2pVDevice(pDevice));
  229 
  230         hpt_printk(("Retry on channel(%d)\n", pDevice->mv->channelNumber));
  231         fDeviceSendCommand(_VBUS_P pCmd);
  232 }
  233 
  234 /****************************************************************
  235  *      Name:   hptmv_init_channel
  236  *
  237  *      Description:    allocate request and response queues for the EDMA of the 
  238  *                                      given channel and sets other fields.
  239  *
  240  *      Parameters:     
  241  *              pAdapter - pointer to the emulated adapter data structure
  242  *              channelNum - channel number. 
  243  *      Return: 0 on success, otherwise on failure
  244  ****************************************************************/
  245 static int
  246 hptmv_init_channel(IAL_ADAPTER_T *pAdapter, MV_U8 channelNum)
  247 {
  248         MV_SATA_CHANNEL *pMvSataChannel;
  249         dma_addr_t    req_dma_addr;
  250         dma_addr_t    rsp_dma_addr;
  251 
  252         if (channelNum >= MV_SATA_CHANNELS_NUM)
  253         {
  254                 MV_ERROR("RR18xx[%d]: Bad channelNum=%d",
  255                                  pAdapter->mvSataAdapter.adapterId, channelNum);
  256                 return -1;
  257         }
  258 
  259         pMvSataChannel = &gMvSataChannels[pAdapter->mvSataAdapter.adapterId][channelNum];
  260         pAdapter->mvSataAdapter.sataChannel[channelNum] = pMvSataChannel;
  261         pMvSataChannel->channelNumber = channelNum;
  262         pMvSataChannel->lba48Address = MV_FALSE;
  263         pMvSataChannel->maxReadTransfer = MV_FALSE;
  264 
  265         pMvSataChannel->requestQueue = (struct mvDmaRequestQueueEntry *)
  266                                                                    (pAdapter->requestsArrayBaseAlignedAddr + (channelNum * MV_EDMA_REQUEST_QUEUE_SIZE));
  267         req_dma_addr = pAdapter->requestsArrayBaseDmaAlignedAddr + (channelNum * MV_EDMA_REQUEST_QUEUE_SIZE);
  268 
  269 
  270         KdPrint(("requestQueue addr is 0x%llX", (HPT_U64)(ULONG_PTR)req_dma_addr));
  271 
  272         /* check the 1K alignment of the request queue*/
  273         if (req_dma_addr & 0x3ff)
  274         {
  275                 MV_ERROR("RR18xx[%d]: request queue allocated isn't 1 K aligned,"
  276                                  " dma_addr=%llx channel=%d\n", pAdapter->mvSataAdapter.adapterId,
  277                                  (HPT_U64)(ULONG_PTR)req_dma_addr, channelNum);
  278                 return -1;
  279         }
  280         pMvSataChannel->requestQueuePciLowAddress = req_dma_addr;
  281         pMvSataChannel->requestQueuePciHiAddress = 0;
  282         KdPrint(("RR18xx[%d,%d]: request queue allocated: 0x%p",
  283                           pAdapter->mvSataAdapter.adapterId, channelNum,
  284                           pMvSataChannel->requestQueue));
  285         pMvSataChannel->responseQueue = (struct mvDmaResponseQueueEntry *)
  286                                                                         (pAdapter->responsesArrayBaseAlignedAddr + (channelNum * MV_EDMA_RESPONSE_QUEUE_SIZE));
  287         rsp_dma_addr = pAdapter->responsesArrayBaseDmaAlignedAddr + (channelNum * MV_EDMA_RESPONSE_QUEUE_SIZE);
  288 
  289         /* check the 256 alignment of the response queue*/
  290         if (rsp_dma_addr & 0xff)
  291         {
  292                 MV_ERROR("RR18xx[%d,%d]: response queue allocated isn't 256 byte "
  293                                  "aligned, dma_addr=%llx\n",
  294                                  pAdapter->mvSataAdapter.adapterId, channelNum, (HPT_U64)(ULONG_PTR)rsp_dma_addr);
  295                 return -1;
  296         }
  297         pMvSataChannel->responseQueuePciLowAddress = rsp_dma_addr;
  298         pMvSataChannel->responseQueuePciHiAddress = 0;
  299         KdPrint(("RR18xx[%d,%d]: response queue allocated: 0x%p",
  300                           pAdapter->mvSataAdapter.adapterId, channelNum,
  301                           pMvSataChannel->responseQueue));
  302 
  303         pAdapter->mvChannel[channelNum].online = MV_TRUE;
  304         return 0;
  305 }
  306 
  307 /******************************************************************************
  308  *      Name: hptmv_parse_identify_results
  309  *
  310  *      Description:    this functions parses the identify command results, checks
  311  *                                      that the connected deives can be accesed by RR18xx EDMA,
  312  *                                      and updates the channel structure accordingly.
  313  *
  314  *      Parameters:     pMvSataChannel, pointer to the channel data structure.
  315  *
  316  *      Returns:        =0 ->success, < 0 ->failure.
  317  *
  318  ******************************************************************************/
  319 static int
  320 hptmv_parse_identify_results(MV_SATA_CHANNEL *pMvSataChannel)
  321 {
  322         MV_U16  *iden = pMvSataChannel->identifyDevice;
  323 
  324         /*LBA addressing*/
  325         if (! (iden[IDEN_CAPACITY_1_OFFSET] & 0x200))
  326         {
  327                 KdPrint(("IAL Error in IDENTIFY info: LBA not supported\n"));
  328                 return -1;
  329         }
  330         else
  331         {
  332                 KdPrint(("%25s - %s\n", "Capabilities", "LBA supported"));
  333         }
  334         /*DMA support*/
  335         if (! (iden[IDEN_CAPACITY_1_OFFSET] & 0x100))
  336         {
  337                 KdPrint(("IAL Error in IDENTIFY info: DMA not supported\n"));
  338                 return -1;
  339         }
  340         else
  341         {
  342                 KdPrint(("%25s - %s\n", "Capabilities", "DMA supported"));
  343         }
  344         /* PIO */
  345         if ((iden[IDEN_VALID] & 2) == 0)
  346         {
  347                 KdPrint(("IAL Error in IDENTIFY info: not able to find PIO mode\n"));
  348                 return -1;
  349         }
  350         KdPrint(("%25s - 0x%02x\n", "PIO modes supported",
  351                           iden[IDEN_PIO_MODE_SPPORTED] & 0xff));
  352 
  353         /*UDMA*/
  354         if ((iden[IDEN_VALID] & 4) == 0)
  355         {
  356                 KdPrint(("IAL Error in IDENTIFY info: not able to find UDMA mode\n"));
  357                 return -1;
  358         }
  359 
  360         /* 48 bit address */
  361         if ((iden[IDEN_SUPPORTED_COMMANDS2] & 0x400))
  362         {
  363                 KdPrint(("%25s - %s\n", "LBA48 addressing", "supported"));
  364                 pMvSataChannel->lba48Address = MV_TRUE;
  365         }
  366         else
  367         {
  368                 KdPrint(("%25s - %s\n", "LBA48 addressing", "Not supported"));
  369                 pMvSataChannel->lba48Address = MV_FALSE;
  370         }
  371         return 0;
  372 }
  373 
  374 static void
  375 init_vdev_params(IAL_ADAPTER_T *pAdapter, MV_U8 channel)
  376 {
  377         PVDevice pVDev = &pAdapter->VDevices[channel];
  378         MV_SATA_CHANNEL *pMvSataChannel = pAdapter->mvSataAdapter.sataChannel[channel];
  379         MV_U16_PTR IdentifyData = pMvSataChannel->identifyDevice;
  380 
  381         pMvSataChannel->outstandingCommands = 0;
  382 
  383         pVDev->u.disk.mv         = pMvSataChannel;
  384         pVDev->u.disk.df_on_line = 1;
  385         pVDev->u.disk.pVBus      = &pAdapter->VBus;
  386         pVDev->pVBus             = &pAdapter->VBus;
  387 
  388 #ifdef SUPPORT_48BIT_LBA
  389         if (pMvSataChannel->lba48Address == MV_TRUE)
  390                 pVDev->u.disk.dDeRealCapacity = ((IdentifyData[101]<<16) | IdentifyData[100]) - 1;
  391         else
  392 #endif
  393         if(IdentifyData[53] & 1) {
  394         pVDev->u.disk.dDeRealCapacity = 
  395           (((IdentifyData[58]<<16 | IdentifyData[57]) < (IdentifyData[61]<<16 | IdentifyData[60])) ? 
  396                   (IdentifyData[61]<<16 | IdentifyData[60]) :
  397                                 (IdentifyData[58]<<16 | IdentifyData[57])) - 1;
  398         } else
  399                 pVDev->u.disk.dDeRealCapacity = 
  400                                  (IdentifyData[61]<<16 | IdentifyData[60]) - 1;
  401 
  402         pVDev->u.disk.bDeUsable_Mode = pVDev->u.disk.bDeModeSetting = 
  403                 pAdapter->mvChannel[channel].maxPioModeSupported - MV_ATA_TRANSFER_PIO_0;
  404 
  405         if (pAdapter->mvChannel[channel].maxUltraDmaModeSupported!=0xFF) {
  406                 pVDev->u.disk.bDeUsable_Mode = pVDev->u.disk.bDeModeSetting = 
  407                         pAdapter->mvChannel[channel].maxUltraDmaModeSupported - MV_ATA_TRANSFER_UDMA_0 + 8;
  408         }
  409 }
  410 
  411 static void device_change(IAL_ADAPTER_T *pAdapter , MV_U8 channelIndex, int plugged)
  412 {
  413         PVDevice pVDev;
  414         MV_SATA_ADAPTER  *pMvSataAdapter = &pAdapter->mvSataAdapter;
  415         MV_SATA_CHANNEL  *pMvSataChannel = pMvSataAdapter->sataChannel[channelIndex];
  416         
  417         if (!pMvSataChannel) return;
  418 
  419         if (plugged)
  420         {
  421                 pVDev = &(pAdapter->VDevices[channelIndex]);
  422                 init_vdev_params(pAdapter, channelIndex);
  423 
  424                 pVDev->VDeviceType = pVDev->u.disk.df_atapi? VD_ATAPI : 
  425                         pVDev->u.disk.df_removable_drive? VD_REMOVABLE : VD_SINGLE_DISK;
  426 
  427                 pVDev->VDeviceCapacity = pVDev->u.disk.dDeRealCapacity-SAVE_FOR_RAID_INFO;
  428                 pVDev->pfnSendCommand = pfnSendCommand[pVDev->VDeviceType];
  429                 pVDev->pfnDeviceFailed = pfnDeviceFailed[pVDev->VDeviceType];
  430                 pVDev->vf_online = 1;
  431 
  432 #ifdef SUPPORT_ARRAY
  433                 if(pVDev->pParent) 
  434                 {
  435                         int iMember;
  436                         for(iMember = 0; iMember <      pVDev->pParent->u.array.bArnMember; iMember++)
  437                                 if((PVDevice)pVDev->pParent->u.array.pMember[iMember] == pVDev)
  438                                         pVDev->pParent->u.array.pMember[iMember] = NULL;
  439                         pVDev->pParent = NULL;
  440                 }
  441 #endif
  442                 fNotifyGUI(ET_DEVICE_PLUGGED,pVDev);
  443                 fCheckBootable(pVDev);
  444                 RegisterVDevice(pVDev);
  445 
  446 #ifndef FOR_DEMO
  447                 if (pAdapter->beeping) {
  448                         pAdapter->beeping = 0;
  449                         BeepOff(pAdapter->mvSataAdapter.adapterIoBaseAddress);
  450                 }
  451 #endif
  452 
  453         }
  454         else
  455         {
  456                 pVDev  = &(pAdapter->VDevices[channelIndex]);
  457                 failDevice(pVDev);
  458         }
  459 }
  460 
  461 static int
  462 start_channel(IAL_ADAPTER_T *pAdapter, MV_U8 channelNum)
  463 {
  464         MV_SATA_ADAPTER *pMvSataAdapter = &pAdapter->mvSataAdapter;
  465         MV_SATA_CHANNEL *pMvSataChannel = pMvSataAdapter->sataChannel[channelNum];
  466         MV_CHANNEL              *pChannelInfo = &(pAdapter->mvChannel[channelNum]);
  467         MV_U32          udmaMode,pioMode;
  468 
  469         KdPrint(("RR18xx [%d]: start channel (%d)", pMvSataAdapter->adapterId, 
  470                          channelNum));
  471 
  472 
  473         /* Software reset channel */
  474         if (mvStorageDevATASoftResetDevice(pMvSataAdapter, channelNum) == MV_FALSE)
  475         {
  476                 MV_ERROR("RR18xx [%d,%d]: failed to perform Software reset\n",
  477                                  pMvSataAdapter->adapterId, channelNum);
  478                 return -1;
  479         }
  480 
  481         /* Hardware reset channel */
  482         if (mvSataChannelHardReset(pMvSataAdapter, channelNum) == MV_FALSE)
  483         {
  484                 /* If failed, try again - this is when trying to hardreset a channel */
  485                 /* when drive is just spinning up */
  486                 StallExec(5000000); /* wait 5 sec before trying again */
  487                 if (mvSataChannelHardReset(pMvSataAdapter, channelNum) == MV_FALSE)
  488                 {
  489                         MV_ERROR("RR18xx [%d,%d]: failed to perform Hard reset\n",
  490                                          pMvSataAdapter->adapterId, channelNum);
  491                         return -1;
  492                 }
  493         }
  494 
  495         /* identify device*/
  496         if (mvStorageDevATAIdentifyDevice(pMvSataAdapter, channelNum) == MV_FALSE)
  497         {
  498                 MV_ERROR("RR18xx [%d,%d]: failed to perform ATA Identify command\n"
  499                                  , pMvSataAdapter->adapterId, channelNum);
  500                 return -1;
  501         }
  502         if (hptmv_parse_identify_results(pMvSataChannel))
  503         {
  504                 MV_ERROR("RR18xx [%d,%d]: Error in parsing ATA Identify message\n"
  505                                  , pMvSataAdapter->adapterId, channelNum);
  506                 return -1;
  507         }
  508 
  509         /* mvStorageDevATASetFeatures */
  510         /* Disable 8 bit PIO in case CFA enabled */
  511         if (pMvSataChannel->identifyDevice[86] & 4)
  512         {
  513                 KdPrint(("RR18xx [%d]: Disable 8 bit PIO (CFA enabled) \n",
  514                                   pMvSataAdapter->adapterId));
  515                 if (mvStorageDevATASetFeatures(pMvSataAdapter, channelNum,
  516                                                                            MV_ATA_SET_FEATURES_DISABLE_8_BIT_PIO, 0,
  517                                                                            0, 0, 0) == MV_FALSE)
  518                 {
  519                         MV_ERROR("RR18xx [%d]: channel %d: mvStorageDevATASetFeatures"
  520                                          " failed\n", pMvSataAdapter->adapterId, channelNum); 
  521                         return -1;
  522                 }
  523         }
  524         /* Write cache */
  525 #ifdef ENABLE_WRITE_CACHE
  526         if (pMvSataChannel->identifyDevice[82] & 0x20)
  527         {
  528                 if (!(pMvSataChannel->identifyDevice[85] & 0x20)) /* if not enabled by default */
  529                 {
  530                         if (mvStorageDevATASetFeatures(pMvSataAdapter, channelNum,
  531                                                                                    MV_ATA_SET_FEATURES_ENABLE_WCACHE, 0,
  532                                                                                    0, 0, 0) == MV_FALSE)
  533                         {
  534                                 MV_ERROR("RR18xx [%d]: channel %d: mvStorageDevATASetFeatures failed\n",
  535                                                  pMvSataAdapter->adapterId, channelNum); 
  536                                 return -1;
  537                         }
  538                 }
  539                 KdPrint(("RR18xx [%d]: channel %d, write cache enabled\n",
  540                                   pMvSataAdapter->adapterId, channelNum));
  541         }
  542         else
  543         {
  544                 KdPrint(("RR18xx [%d]: channel %d, write cache not supported\n",
  545                                   pMvSataAdapter->adapterId, channelNum));
  546         }
  547 #else /* disable write cache */
  548         {
  549                 if (pMvSataChannel->identifyDevice[85] & 0x20)
  550                 {
  551                         KdPrint(("RR18xx [%d]: channel =%d, disable write cache\n",
  552                                           pMvSataAdapter->adapterId, channelNum));
  553                         if (mvStorageDevATASetFeatures(pMvSataAdapter, channelNum,
  554                                                                                    MV_ATA_SET_FEATURES_DISABLE_WCACHE, 0,
  555                                                                                    0, 0, 0) == MV_FALSE)
  556                         {
  557                                 MV_ERROR("RR18xx [%d]: channel %d: mvStorageDevATASetFeatures failed\n",
  558                                                  pMvSataAdapter->adapterId, channelNum); 
  559                                 return -1;
  560                         }
  561                 }
  562                 KdPrint(("RR18xx [%d]: channel=%d, write cache disabled\n",
  563                                   pMvSataAdapter->adapterId, channelNum));
  564         }
  565 #endif
  566 
  567         /* Set transfer mode */
  568         KdPrint(("RR18xx [%d] Set transfer mode XFER_PIO_SLOW\n",
  569                           pMvSataAdapter->adapterId));
  570         if (mvStorageDevATASetFeatures(pMvSataAdapter, channelNum,
  571                                                                    MV_ATA_SET_FEATURES_TRANSFER,
  572                                                                    MV_ATA_TRANSFER_PIO_SLOW, 0, 0, 0) == 
  573                 MV_FALSE)
  574         {
  575                 MV_ERROR("RR18xx [%d] channel %d: Set Features failed\n",
  576                                  pMvSataAdapter->adapterId, channelNum); 
  577                 return -1;
  578         }
  579 
  580         if (pMvSataChannel->identifyDevice[IDEN_PIO_MODE_SPPORTED] & 1)
  581         {
  582                 pioMode = MV_ATA_TRANSFER_PIO_4;
  583         }
  584         else if (pMvSataChannel->identifyDevice[IDEN_PIO_MODE_SPPORTED] & 2)
  585         {
  586                 pioMode = MV_ATA_TRANSFER_PIO_3;
  587         }
  588         else
  589         {
  590                 MV_ERROR("IAL Error in IDENTIFY info: PIO modes 3 and 4 not supported\n");
  591                 pioMode = MV_ATA_TRANSFER_PIO_SLOW;
  592         }
  593 
  594         KdPrint(("RR18xx [%d] Set transfer mode XFER_PIO_4\n",
  595                           pMvSataAdapter->adapterId));
  596         pAdapter->mvChannel[channelNum].maxPioModeSupported = pioMode;
  597         if (mvStorageDevATASetFeatures(pMvSataAdapter, channelNum,
  598                                                                    MV_ATA_SET_FEATURES_TRANSFER,
  599                                                                    pioMode, 0, 0, 0) == MV_FALSE)
  600         {
  601                 MV_ERROR("RR18xx [%d] channel %d: Set Features failed\n",
  602                                  pMvSataAdapter->adapterId, channelNum); 
  603                 return -1;
  604         }
  605 
  606         udmaMode = MV_ATA_TRANSFER_UDMA_0;
  607         if (pMvSataChannel->identifyDevice[IDEN_UDMA_MODE] & 0x40)
  608         {
  609                 udmaMode =  MV_ATA_TRANSFER_UDMA_6;
  610         }
  611         else if (pMvSataChannel->identifyDevice[IDEN_UDMA_MODE] & 0x20)
  612         {
  613                 udmaMode =  MV_ATA_TRANSFER_UDMA_5;
  614         }
  615         else if (pMvSataChannel->identifyDevice[IDEN_UDMA_MODE] & 0x10)
  616         {
  617                 udmaMode =  MV_ATA_TRANSFER_UDMA_4;
  618         }
  619         else if (pMvSataChannel->identifyDevice[IDEN_UDMA_MODE] & 8)
  620         {
  621                 udmaMode =  MV_ATA_TRANSFER_UDMA_3;
  622         }
  623         else if (pMvSataChannel->identifyDevice[IDEN_UDMA_MODE] & 4)
  624         {
  625                 udmaMode =  MV_ATA_TRANSFER_UDMA_2;
  626         }
  627 
  628         KdPrint(("RR18xx [%d] Set transfer mode XFER_UDMA_%d\n",
  629                           pMvSataAdapter->adapterId, udmaMode & 0xf));
  630         pChannelInfo->maxUltraDmaModeSupported = udmaMode;
  631 
  632         /*if (mvStorageDevATASetFeatures(pMvSataAdapter, channelNum,
  633                                                                    MV_ATA_SET_FEATURES_TRANSFER, udmaMode,
  634                                                                    0, 0, 0) == MV_FALSE)
  635         {
  636                 MV_ERROR("RR18xx [%d] channel %d: Set Features failed\n",
  637                                  pMvSataAdapter->adapterId, channelNum); 
  638                 return -1;
  639         }*/
  640         if (pChannelInfo->maxUltraDmaModeSupported == 0xFF) 
  641                 return TRUE;
  642         else 
  643                 do
  644                 {
  645                         if (mvStorageDevATASetFeatures(pMvSataAdapter, channelNum,
  646                                                                    MV_ATA_SET_FEATURES_TRANSFER, 
  647                                                                    pChannelInfo->maxUltraDmaModeSupported,
  648                                                                    0, 0, 0) == MV_FALSE)
  649                         {
  650                                 if (pChannelInfo->maxUltraDmaModeSupported > MV_ATA_TRANSFER_UDMA_0)
  651                                 {
  652                                         if (mvStorageDevATASoftResetDevice(pMvSataAdapter, channelNum) == MV_FALSE)
  653                                         {
  654                                                 MV_REG_WRITE_BYTE(pMvSataAdapter->adapterIoBaseAddress,
  655                                                                                   pMvSataChannel->eDmaRegsOffset +
  656                                                                                   0x11c, /* command reg */
  657                                                                                   MV_ATA_COMMAND_IDLE_IMMEDIATE); 
  658                                                 mvMicroSecondsDelay(10000);
  659                                                 mvSataChannelHardReset(pMvSataAdapter, channelNum);
  660                                                 if (mvStorageDevATASoftResetDevice(pMvSataAdapter, channelNum) == MV_FALSE)
  661                                                         return FALSE;
  662                                         }
  663                                         if (mvSataChannelHardReset(pMvSataAdapter, channelNum) == MV_FALSE)
  664                                                 return FALSE;
  665                                         pChannelInfo->maxUltraDmaModeSupported--;
  666                                         continue;
  667                                 }
  668                                 else   return FALSE;
  669                         }
  670                         break;
  671                 }while (1);
  672 
  673         /* Read look ahead */
  674 #ifdef ENABLE_READ_AHEAD
  675         if (pMvSataChannel->identifyDevice[82] & 0x40)
  676         {
  677                 if (!(pMvSataChannel->identifyDevice[85] & 0x40)) /* if not enabled by default */
  678                 {
  679                         if (mvStorageDevATASetFeatures(pMvSataAdapter, channelNum,
  680                                                                                    MV_ATA_SET_FEATURES_ENABLE_RLA, 0, 0,
  681                                                                                    0, 0) == MV_FALSE)
  682                         {
  683                                 MV_ERROR("RR18xx [%d] channel %d: Set Features failed\n",
  684                                                  pMvSataAdapter->adapterId, channelNum); 
  685                                 return -1;
  686                         }
  687                 }
  688                 KdPrint(("RR18xx [%d]: channel=%d, read look ahead enabled\n", 
  689                                   pMvSataAdapter->adapterId, channelNum));
  690         }
  691         else
  692         {
  693                 KdPrint(("RR18xx [%d]: channel %d, Read Look Ahead not supported\n",
  694                                   pMvSataAdapter->adapterId, channelNum));
  695         }
  696 #else 
  697         {
  698                 if (pMvSataChannel->identifyDevice[86] & 0x20)
  699                 {
  700                         KdPrint(("RR18xx [%d]:channel %d, disable read look ahead\n",
  701                                           pMvSataAdapter->adapterId, channelNum));
  702                         if (mvStorageDevATASetFeatures(pMvSataAdapter, channelNum,
  703                                                                                    MV_ATA_SET_FEATURES_DISABLE_RLA, 0, 0,
  704                                                                                    0, 0) == MV_FALSE)
  705                         {
  706                                 MV_ERROR("RR18xx [%d]:channel %d:  ATA Set Features failed\n",
  707                                                  pMvSataAdapter->adapterId, channelNum); 
  708                                 return -1;
  709                         }
  710                 }
  711                 KdPrint(("RR18xx [%d]:channel %d, read look ahead disabled\n",
  712                                   pMvSataAdapter->adapterId, channelNum));
  713         }    
  714 #endif
  715 
  716 
  717         {
  718                 KdPrint(("RR18xx [%d]: channel %d config EDMA, Non Queued Mode\n",
  719                                   pMvSataAdapter->adapterId, 
  720                                   channelNum));
  721                 if (mvSataConfigEdmaMode(pMvSataAdapter, channelNum,
  722                                                                  MV_EDMA_MODE_NOT_QUEUED, 0) == MV_FALSE)
  723                 {
  724                         MV_ERROR("RR18xx [%d] channel %d Error: mvSataConfigEdmaMode failed\n",
  725                                          pMvSataAdapter->adapterId, channelNum);
  726                         return -1;
  727                 }
  728         }
  729         /* Enable EDMA */
  730         if (mvSataEnableChannelDma(pMvSataAdapter, channelNum) == MV_FALSE)
  731         {
  732                 MV_ERROR("RR18xx [%d] Failed to enable DMA, channel=%d\n",
  733                                  pMvSataAdapter->adapterId, channelNum);
  734                 return -1;
  735         }
  736         MV_ERROR("RR18xx [%d,%d]: channel started successfully\n",
  737                          pMvSataAdapter->adapterId, channelNum);
  738 
  739 #ifndef FOR_DEMO
  740         set_fail_led(pMvSataAdapter, channelNum, 0);
  741 #endif
  742         return 0;
  743 }
  744 
  745 static void
  746 hptmv_handle_event(void * data, int flag)
  747 {
  748         IAL_ADAPTER_T   *pAdapter = (IAL_ADAPTER_T *)data;
  749         MV_SATA_ADAPTER *pMvSataAdapter = &pAdapter->mvSataAdapter;
  750         MV_U8           channelIndex;
  751 
  752         mtx_assert(&pAdapter->lock, MA_OWNED);
  753 /*      mvOsSemTake(&pMvSataAdapter->semaphore); */
  754         for (channelIndex = 0; channelIndex < MV_SATA_CHANNELS_NUM; channelIndex++)
  755         {
  756                 switch(pAdapter->sataEvents[channelIndex])
  757                 {
  758                         case SATA_EVENT_CHANNEL_CONNECTED:
  759                                 /* Handle only connects */
  760                                 if (flag == 1)
  761                                         break;
  762                                 KdPrint(("RR18xx [%d,%d]: new device connected\n",
  763                                                  pMvSataAdapter->adapterId, channelIndex));
  764                                 hptmv_init_channel(pAdapter, channelIndex);
  765                                 if (mvSataConfigureChannel( pMvSataAdapter, channelIndex) == MV_FALSE)
  766                                 {
  767                                         MV_ERROR("RR18xx [%d,%d] Failed to configure\n",
  768                                                          pMvSataAdapter->adapterId, channelIndex);
  769                                         hptmv_free_channel(pAdapter, channelIndex);
  770                                 }
  771                                 else
  772                                 {
  773                                         /*mvSataChannelHardReset(pMvSataAdapter, channel);*/
  774                                         if (start_channel( pAdapter, channelIndex))
  775                                         {
  776                                                 MV_ERROR("RR18xx [%d,%d]Failed to start channel\n",
  777                                                                  pMvSataAdapter->adapterId, channelIndex);
  778                                                 hptmv_free_channel(pAdapter, channelIndex);
  779                                         }
  780                                         else 
  781                                         {
  782                                                 device_change(pAdapter, channelIndex, TRUE);
  783                                         }
  784                                 }
  785                                 pAdapter->sataEvents[channelIndex] = SATA_EVENT_NO_CHANGE;
  786                            break;
  787 
  788                         case SATA_EVENT_CHANNEL_DISCONNECTED:
  789                                 /* Handle only disconnects */
  790                                 if (flag == 0)
  791                                         break;
  792                                 KdPrint(("RR18xx [%d,%d]: device disconnected\n",
  793                                                  pMvSataAdapter->adapterId, channelIndex));
  794                                         /* Flush pending commands */
  795                                 if(pMvSataAdapter->sataChannel[channelIndex])
  796                                 {
  797                                         _VBUS_INST(&pAdapter->VBus)
  798                                         mvSataFlushDmaQueue (pMvSataAdapter, channelIndex,
  799                                                                                  MV_FLUSH_TYPE_CALLBACK);
  800                                         CheckPendingCall(_VBUS_P0);
  801                                         mvSataRemoveChannel(pMvSataAdapter,channelIndex);
  802                                         hptmv_free_channel(pAdapter, channelIndex);
  803                                         pMvSataAdapter->sataChannel[channelIndex] = NULL;
  804                                         KdPrint(("RR18xx [%d,%d]: channel removed\n",
  805                                                  pMvSataAdapter->adapterId, channelIndex));
  806                                         if (pAdapter->outstandingCommands==0 && DPC_Request_Nums==0)
  807                                                 Check_Idle_Call(pAdapter);
  808                                 }
  809                                 else
  810                                 {
  811                                         KdPrint(("RR18xx [%d,%d]: channel already removed!!\n",
  812                                                          pMvSataAdapter->adapterId, channelIndex));
  813                                 }
  814                                 pAdapter->sataEvents[channelIndex] = SATA_EVENT_NO_CHANGE;
  815                                 break;
  816                                 
  817                         case SATA_EVENT_NO_CHANGE:
  818                                 break;
  819 
  820                         default:
  821                                 break;
  822                 }
  823         }
  824 /*      mvOsSemRelease(&pMvSataAdapter->semaphore); */
  825 }
  826 
  827 #define EVENT_CONNECT                                   1
  828 #define EVENT_DISCONNECT                                0
  829 
  830 static void
  831 hptmv_handle_event_connect(void *data)
  832 {
  833   hptmv_handle_event (data, 0);
  834 }
  835 
  836 static void
  837 hptmv_handle_event_disconnect(void *data)
  838 {
  839   hptmv_handle_event (data, 1);
  840 }
  841 
  842 static MV_BOOLEAN
  843 hptmv_event_notify(MV_SATA_ADAPTER *pMvSataAdapter, MV_EVENT_TYPE eventType,
  844                                                                    MV_U32 param1, MV_U32 param2)
  845 {
  846         IAL_ADAPTER_T   *pAdapter = pMvSataAdapter->IALData;
  847 
  848         switch (eventType)
  849         {
  850                 case MV_EVENT_TYPE_SATA_CABLE:
  851                         {
  852                                 MV_U8   channel = param2;
  853 
  854                                 if (param1 == EVENT_CONNECT)
  855                                 {
  856                                         pAdapter->sataEvents[channel] = SATA_EVENT_CHANNEL_CONNECTED;
  857                                         KdPrint(("RR18xx [%d,%d]: device connected event received\n",
  858                                                          pMvSataAdapter->adapterId, channel));
  859                                         /* Delete previous timers (if multiple drives connected in the same time */
  860                                         callout_reset(&pAdapter->event_timer_connect, 10 * hz, hptmv_handle_event_connect, pAdapter);
  861                                 }
  862                                 else if (param1 == EVENT_DISCONNECT)
  863                                 {
  864                                         pAdapter->sataEvents[channel] = SATA_EVENT_CHANNEL_DISCONNECTED;
  865                                         KdPrint(("RR18xx [%d,%d]: device disconnected event received \n",
  866                                                          pMvSataAdapter->adapterId, channel));
  867                                         device_change(pAdapter, channel, FALSE);
  868                                         /* Delete previous timers (if multiple drives disconnected in the same time */
  869                                         /*callout_reset(&pAdapter->event_timer_disconnect, 10 * hz, hptmv_handle_event_disconnect, pAdapter); */
  870                                         /*It is not necessary to wait, handle it directly*/
  871                                         hptmv_handle_event_disconnect(pAdapter);
  872                                 }
  873                                 else
  874                                 {
  875 
  876                                         MV_ERROR("RR18xx: illegal value for param1(%d) at "
  877                                                          "connect/disconnect event, host=%d\n", param1,
  878                                                          pMvSataAdapter->adapterId );
  879 
  880                                 }
  881                         }
  882                         break;
  883                 case MV_EVENT_TYPE_ADAPTER_ERROR:
  884                         KdPrint(("RR18xx: DEVICE error event received, pci cause "
  885                                           "reg=%x,  don't how to handle this\n", param1));
  886                         return MV_TRUE;
  887                 default:
  888                         MV_ERROR("RR18xx[%d]: unknown event type (%d)\n",
  889                                          pMvSataAdapter->adapterId, eventType);
  890                         return MV_FALSE;
  891         }
  892         return MV_TRUE;
  893 }
  894 
  895 static int 
  896 hptmv_allocate_edma_queues(IAL_ADAPTER_T *pAdapter)
  897 {
  898         pAdapter->requestsArrayBaseAddr = (MV_U8 *)contigmalloc(REQUESTS_ARRAY_SIZE, 
  899                         M_DEVBUF, M_NOWAIT, 0, 0xffffffff, PAGE_SIZE, 0ul);
  900         if (pAdapter->requestsArrayBaseAddr == NULL)
  901         {
  902                 MV_ERROR("RR18xx[%d]: Failed to allocate memory for EDMA request"
  903                                  " queues\n", pAdapter->mvSataAdapter.adapterId);
  904                 return -1;
  905         }
  906         pAdapter->requestsArrayBaseDmaAddr = fOsPhysicalAddress(pAdapter->requestsArrayBaseAddr);
  907         pAdapter->requestsArrayBaseAlignedAddr = pAdapter->requestsArrayBaseAddr;
  908         pAdapter->requestsArrayBaseAlignedAddr += MV_EDMA_REQUEST_QUEUE_SIZE;
  909         pAdapter->requestsArrayBaseAlignedAddr  = (MV_U8 *)
  910                 (((ULONG_PTR)pAdapter->requestsArrayBaseAlignedAddr) & ~(ULONG_PTR)(MV_EDMA_REQUEST_QUEUE_SIZE - 1));
  911         pAdapter->requestsArrayBaseDmaAlignedAddr = pAdapter->requestsArrayBaseDmaAddr; 
  912         pAdapter->requestsArrayBaseDmaAlignedAddr += MV_EDMA_REQUEST_QUEUE_SIZE;
  913         pAdapter->requestsArrayBaseDmaAlignedAddr &= ~(ULONG_PTR)(MV_EDMA_REQUEST_QUEUE_SIZE - 1);
  914 
  915         if ((pAdapter->requestsArrayBaseDmaAlignedAddr - pAdapter->requestsArrayBaseDmaAddr) != 
  916                 (pAdapter->requestsArrayBaseAlignedAddr - pAdapter->requestsArrayBaseAddr))
  917         {
  918                 MV_ERROR("RR18xx[%d]: Error in Request Quueues Alignment\n",
  919                                  pAdapter->mvSataAdapter.adapterId);
  920                 contigfree(pAdapter->requestsArrayBaseAddr, REQUESTS_ARRAY_SIZE, M_DEVBUF);
  921                 return -1;
  922         }
  923         /* response queues */
  924         pAdapter->responsesArrayBaseAddr = (MV_U8 *)contigmalloc(RESPONSES_ARRAY_SIZE, 
  925                         M_DEVBUF, M_NOWAIT, 0, 0xffffffff, PAGE_SIZE, 0ul);
  926         if (pAdapter->responsesArrayBaseAddr == NULL)
  927         {
  928                 MV_ERROR("RR18xx[%d]: Failed to allocate memory for EDMA response"
  929                                  " queues\n", pAdapter->mvSataAdapter.adapterId);
  930                 contigfree(pAdapter->requestsArrayBaseAddr, RESPONSES_ARRAY_SIZE, M_DEVBUF);
  931                 return -1;
  932         }
  933         pAdapter->responsesArrayBaseDmaAddr = fOsPhysicalAddress(pAdapter->responsesArrayBaseAddr);
  934         pAdapter->responsesArrayBaseAlignedAddr = pAdapter->responsesArrayBaseAddr;
  935         pAdapter->responsesArrayBaseAlignedAddr += MV_EDMA_RESPONSE_QUEUE_SIZE;
  936         pAdapter->responsesArrayBaseAlignedAddr  = (MV_U8 *)
  937                 (((ULONG_PTR)pAdapter->responsesArrayBaseAlignedAddr) & ~(ULONG_PTR)(MV_EDMA_RESPONSE_QUEUE_SIZE - 1));
  938         pAdapter->responsesArrayBaseDmaAlignedAddr = pAdapter->responsesArrayBaseDmaAddr; 
  939         pAdapter->responsesArrayBaseDmaAlignedAddr += MV_EDMA_RESPONSE_QUEUE_SIZE;
  940         pAdapter->responsesArrayBaseDmaAlignedAddr &= ~(ULONG_PTR)(MV_EDMA_RESPONSE_QUEUE_SIZE - 1);
  941 
  942         if ((pAdapter->responsesArrayBaseDmaAlignedAddr - pAdapter->responsesArrayBaseDmaAddr) != 
  943                 (pAdapter->responsesArrayBaseAlignedAddr - pAdapter->responsesArrayBaseAddr))
  944         {
  945                 MV_ERROR("RR18xx[%d]: Error in Response Queues Alignment\n",
  946                                  pAdapter->mvSataAdapter.adapterId);
  947                 contigfree(pAdapter->requestsArrayBaseAddr, REQUESTS_ARRAY_SIZE, M_DEVBUF);
  948                 contigfree(pAdapter->responsesArrayBaseAddr, RESPONSES_ARRAY_SIZE, M_DEVBUF);
  949                 return -1;
  950         }
  951         return 0;
  952 }
  953 
  954 static void
  955 hptmv_free_edma_queues(IAL_ADAPTER_T *pAdapter)
  956 {
  957         contigfree(pAdapter->requestsArrayBaseAddr, REQUESTS_ARRAY_SIZE, M_DEVBUF);
  958         contigfree(pAdapter->responsesArrayBaseAddr, RESPONSES_ARRAY_SIZE, M_DEVBUF);
  959 }
  960 
  961 static PVOID
  962 AllocatePRDTable(IAL_ADAPTER_T *pAdapter)
  963 {
  964         PVOID ret;
  965         if (pAdapter->pFreePRDLink) {
  966                 KdPrint(("pAdapter->pFreePRDLink:%p\n",pAdapter->pFreePRDLink));
  967                 ret = pAdapter->pFreePRDLink;
  968                 pAdapter->pFreePRDLink = *(void**)ret;
  969                 return ret;
  970         }
  971         return NULL;
  972 }
  973 
  974 static void
  975 FreePRDTable(IAL_ADAPTER_T *pAdapter, PVOID PRDTable)
  976 {
  977         *(void**)PRDTable = pAdapter->pFreePRDLink;
  978         pAdapter->pFreePRDLink = PRDTable;
  979 }
  980 
  981 extern PVDevice fGetFirstChild(PVDevice pLogical);
  982 extern void fResetBootMark(PVDevice pLogical);
  983 static void
  984 fRegisterVdevice(IAL_ADAPTER_T *pAdapter)
  985 {
  986         PVDevice pPhysical, pLogical;
  987         PVBus  pVBus;
  988         int i,j;
  989 
  990         for(i=0;i<MV_SATA_CHANNELS_NUM;i++) {
  991                 pPhysical = &(pAdapter->VDevices[i]);
  992                 pLogical = pPhysical;
  993                 while (pLogical->pParent) pLogical = pLogical->pParent;
  994                 if (pLogical->vf_online==0) {
  995                         pPhysical->vf_bootmark = pLogical->vf_bootmark = 0;
  996                         continue;
  997                 }
  998                 if (pLogical->VDeviceType==VD_SPARE || pPhysical!=fGetFirstChild(pLogical)) 
  999                         continue;
 1000 
 1001                 pVBus = &pAdapter->VBus;
 1002                 if(pVBus)
 1003                 {
 1004                         j=0;
 1005                         while(j<MAX_VDEVICE_PER_VBUS && pVBus->pVDevice[j]) j++;
 1006                         if(j<MAX_VDEVICE_PER_VBUS){
 1007                                 pVBus->pVDevice[j] = pLogical; 
 1008                                 pLogical->pVBus = pVBus;
 1009 
 1010                                 if (j>0 && pLogical->vf_bootmark) {
 1011                                         if (pVBus->pVDevice[0]->vf_bootmark) {
 1012                                                 fResetBootMark(pLogical);
 1013                                         }
 1014                                         else {
 1015                                                 do { pVBus->pVDevice[j] = pVBus->pVDevice[j-1]; } while (--j);
 1016                                                 pVBus->pVDevice[0] = pLogical;
 1017                                         }
 1018                                 }
 1019                         }
 1020                 }
 1021         }
 1022 }
 1023 
 1024 PVDevice
 1025 GetSpareDisk(_VBUS_ARG PVDevice pArray)
 1026 {
 1027         IAL_ADAPTER_T *pAdapter = (IAL_ADAPTER_T *)pArray->pVBus->OsExt;
 1028         LBA_T capacity = LongDiv(pArray->VDeviceCapacity, pArray->u.array.bArnMember-1);
 1029         LBA_T thiscap, maxcap = MAX_LBA_T;
 1030         PVDevice pVDevice, pFind = NULL;
 1031         int i;
 1032 
 1033         for(i=0;i<MV_SATA_CHANNELS_NUM;i++)
 1034         {
 1035                 pVDevice = &pAdapter->VDevices[i];
 1036                 if(!pVDevice) 
 1037                         continue;
 1038                 thiscap = pArray->vf_format_v2? pVDevice->u.disk.dDeRealCapacity : pVDevice->VDeviceCapacity;
 1039                 /* find the smallest usable spare disk */
 1040                 if (pVDevice->VDeviceType==VD_SPARE &&
 1041                         pVDevice->u.disk.df_on_line &&
 1042                         thiscap < maxcap &&
 1043                         thiscap >= capacity)
 1044                 {                                               
 1045                                 maxcap = pVDevice->VDeviceCapacity;
 1046                                 pFind = pVDevice;                       
 1047                 }
 1048         }
 1049         return pFind;
 1050 }
 1051 
 1052 /******************************************************************
 1053  * IO ATA Command
 1054  *******************************************************************/
 1055 int HPTLIBAPI
 1056 fDeReadWrite(PDevice pDev, ULONG Lba, UCHAR Cmd, void *tmpBuffer)
 1057 {
 1058         return mvReadWrite(pDev->mv, Lba, Cmd, tmpBuffer);
 1059 }
 1060 
 1061 void HPTLIBAPI fDeSelectMode(PDevice pDev, UCHAR NewMode)
 1062 {
 1063         MV_SATA_CHANNEL *pSataChannel = pDev->mv;
 1064         MV_SATA_ADAPTER *pSataAdapter = pSataChannel->mvSataAdapter;    
 1065         MV_U8 channelIndex = pSataChannel->channelNumber;
 1066         UCHAR mvMode;
 1067         /* 508x don't use MW-DMA? */
 1068         if (NewMode>4 && NewMode<8) NewMode = 4;
 1069         pDev->bDeModeSetting = NewMode;
 1070         if (NewMode<=4)
 1071                 mvMode = MV_ATA_TRANSFER_PIO_0 + NewMode;
 1072         else
 1073                 mvMode = MV_ATA_TRANSFER_UDMA_0 + (NewMode-8);
 1074 
 1075         /*To fix 88i8030 bug*/
 1076         if (mvMode > MV_ATA_TRANSFER_UDMA_0 && mvMode < MV_ATA_TRANSFER_UDMA_4)
 1077                 mvMode = MV_ATA_TRANSFER_UDMA_0;
 1078 
 1079         mvSataDisableChannelDma(pSataAdapter, channelIndex);
 1080         /* Flush pending commands */
 1081         mvSataFlushDmaQueue (pSataAdapter, channelIndex, MV_FLUSH_TYPE_NONE);
 1082 
 1083         if (mvStorageDevATASetFeatures(pSataAdapter, channelIndex,
 1084                                                                    MV_ATA_SET_FEATURES_TRANSFER,
 1085                                                                    mvMode, 0, 0, 0) == MV_FALSE)
 1086         {
 1087                 KdPrint(("channel %d: Set Features failed\n", channelIndex)); 
 1088         }
 1089         /* Enable EDMA */
 1090         if (mvSataEnableChannelDma(pSataAdapter, channelIndex) == MV_FALSE)
 1091                 KdPrint(("Failed to enable DMA, channel=%d", channelIndex));
 1092 }
 1093 
 1094 int HPTLIBAPI fDeSetTCQ(PDevice pDev, int enable, int depth)
 1095 {
 1096         MV_SATA_CHANNEL *pSataChannel = pDev->mv;
 1097         MV_SATA_ADAPTER *pSataAdapter = pSataChannel->mvSataAdapter;
 1098         MV_U8 channelIndex = pSataChannel->channelNumber;
 1099         IAL_ADAPTER_T *pAdapter = pSataAdapter->IALData;
 1100         MV_CHANNEL              *channelInfo = &(pAdapter->mvChannel[channelIndex]);
 1101         int dmaActive = pSataChannel->queueCommandsEnabled;
 1102         int ret = 0;
 1103 
 1104         if (dmaActive) {
 1105                 mvSataDisableChannelDma(pSataAdapter, channelIndex);
 1106                 mvSataFlushDmaQueue(pSataAdapter,channelIndex,MV_FLUSH_TYPE_CALLBACK);
 1107         }
 1108 
 1109         if (enable) {
 1110                 if (pSataChannel->queuedDMA == MV_EDMA_MODE_NOT_QUEUED &&
 1111                         (pSataChannel->identifyDevice[IDEN_SUPPORTED_COMMANDS2] & (0x2))) {
 1112                         UCHAR depth = ((pSataChannel->identifyDevice[IDEN_QUEUE_DEPTH]) & 0x1f) + 1;
 1113                         channelInfo->queueDepth = (depth==32)? 31 : depth;
 1114                         mvSataConfigEdmaMode(pSataAdapter, channelIndex, MV_EDMA_MODE_QUEUED, depth);
 1115                         ret = 1;
 1116                 }
 1117         }
 1118         else
 1119         {
 1120                 if (pSataChannel->queuedDMA != MV_EDMA_MODE_NOT_QUEUED) {
 1121                         channelInfo->queueDepth = 2;
 1122                         mvSataConfigEdmaMode(pSataAdapter, channelIndex, MV_EDMA_MODE_NOT_QUEUED, 0);
 1123                         ret = 1;
 1124                 }
 1125         }
 1126 
 1127         if (dmaActive)
 1128                 mvSataEnableChannelDma(pSataAdapter,channelIndex);
 1129         return ret;
 1130 }
 1131 
 1132 int HPTLIBAPI fDeSetNCQ(PDevice pDev, int enable, int depth)
 1133 {
 1134         return 0;
 1135 }
 1136 
 1137 int HPTLIBAPI fDeSetWriteCache(PDevice pDev, int enable)
 1138 {
 1139         MV_SATA_CHANNEL *pSataChannel = pDev->mv;
 1140         MV_SATA_ADAPTER *pSataAdapter = pSataChannel->mvSataAdapter;
 1141         MV_U8 channelIndex = pSataChannel->channelNumber;
 1142         IAL_ADAPTER_T *pAdapter = pSataAdapter->IALData;
 1143         MV_CHANNEL              *channelInfo = &(pAdapter->mvChannel[channelIndex]);
 1144         int dmaActive = pSataChannel->queueCommandsEnabled;
 1145         int ret = 0;
 1146 
 1147         if (dmaActive) {
 1148                 mvSataDisableChannelDma(pSataAdapter, channelIndex);
 1149                 mvSataFlushDmaQueue(pSataAdapter,channelIndex,MV_FLUSH_TYPE_CALLBACK);
 1150         }
 1151 
 1152         if ((pSataChannel->identifyDevice[82] & (0x20))) {
 1153                 if (enable) {
 1154                         if (mvStorageDevATASetFeatures(pSataAdapter, channelIndex,
 1155                                 MV_ATA_SET_FEATURES_ENABLE_WCACHE, 0, 0, 0, 0))
 1156                         {
 1157                                 channelInfo->writeCacheEnabled = MV_TRUE;
 1158                                 ret = 1;
 1159                         }
 1160                 }
 1161                 else {
 1162                         if (mvStorageDevATASetFeatures(pSataAdapter, channelIndex,
 1163                                 MV_ATA_SET_FEATURES_DISABLE_WCACHE, 0, 0, 0, 0))
 1164                         {
 1165                                 channelInfo->writeCacheEnabled = MV_FALSE;
 1166                                 ret = 1;
 1167                         }
 1168                 }
 1169         }
 1170 
 1171         if (dmaActive)
 1172                 mvSataEnableChannelDma(pSataAdapter,channelIndex);
 1173         return ret;
 1174 }
 1175 
 1176 int HPTLIBAPI fDeSetReadAhead(PDevice pDev, int enable)
 1177 {
 1178         MV_SATA_CHANNEL *pSataChannel = pDev->mv;
 1179         MV_SATA_ADAPTER *pSataAdapter = pSataChannel->mvSataAdapter;
 1180         MV_U8 channelIndex = pSataChannel->channelNumber;
 1181         IAL_ADAPTER_T *pAdapter = pSataAdapter->IALData;
 1182         MV_CHANNEL              *channelInfo = &(pAdapter->mvChannel[channelIndex]);
 1183         int dmaActive = pSataChannel->queueCommandsEnabled;
 1184         int ret = 0;
 1185 
 1186         if (dmaActive) {
 1187                 mvSataDisableChannelDma(pSataAdapter, channelIndex);
 1188                 mvSataFlushDmaQueue(pSataAdapter,channelIndex,MV_FLUSH_TYPE_CALLBACK);
 1189         }
 1190 
 1191         if ((pSataChannel->identifyDevice[82] & (0x40))) {
 1192                 if (enable) {
 1193                         if (mvStorageDevATASetFeatures(pSataAdapter, channelIndex,
 1194                                 MV_ATA_SET_FEATURES_ENABLE_RLA, 0, 0, 0, 0))
 1195                         {
 1196                                 channelInfo->readAheadEnabled = MV_TRUE;
 1197                                 ret = 1;
 1198                         }
 1199                 }
 1200                 else {
 1201                         if (mvStorageDevATASetFeatures(pSataAdapter, channelIndex,
 1202                                 MV_ATA_SET_FEATURES_DISABLE_RLA, 0, 0, 0, 0))
 1203                         {
 1204                                 channelInfo->readAheadEnabled = MV_FALSE;
 1205                                 ret = 1;
 1206                         }
 1207                 }
 1208         }
 1209 
 1210         if (dmaActive)
 1211                 mvSataEnableChannelDma(pSataAdapter,channelIndex);
 1212         return ret;
 1213 }
 1214 
 1215 #ifdef SUPPORT_ARRAY
 1216 #define IdeRegisterVDevice  fCheckArray
 1217 #else 
 1218 void
 1219 IdeRegisterVDevice(PDevice pDev)
 1220 {
 1221         PVDevice pVDev = Map2pVDevice(pDev);
 1222 
 1223         pVDev->VDeviceType = pDev->df_atapi? VD_ATAPI : 
 1224                                                  pDev->df_removable_drive? VD_REMOVABLE : VD_SINGLE_DISK;
 1225         pVDev->vf_online = 1;
 1226         pVDev->VDeviceCapacity = pDev->dDeRealCapacity;
 1227         pVDev->pfnSendCommand = pfnSendCommand[pVDev->VDeviceType];
 1228         pVDev->pfnDeviceFailed = pfnDeviceFailed[pVDev->VDeviceType];
 1229 }
 1230 #endif
 1231 
 1232 static __inline PBUS_DMAMAP
 1233 dmamap_get(struct IALAdapter * pAdapter)
 1234 {
 1235         PBUS_DMAMAP     p = pAdapter->pbus_dmamap_list;
 1236         if (p)
 1237                 pAdapter->pbus_dmamap_list = p-> next;
 1238         return p;
 1239 }
 1240 
 1241 static __inline void
 1242 dmamap_put(PBUS_DMAMAP p)
 1243 {
 1244         p->next = p->pAdapter->pbus_dmamap_list;
 1245         p->pAdapter->pbus_dmamap_list = p;
 1246 }
 1247 
 1248 static int num_adapters = 0;
 1249 static int
 1250 init_adapter(IAL_ADAPTER_T *pAdapter)
 1251 {
 1252         PVBus _vbus_p = &pAdapter->VBus;
 1253         MV_SATA_ADAPTER *pMvSataAdapter;
 1254         int i, channel, rid;
 1255 
 1256         PVDevice pVDev;
 1257 
 1258         mtx_init(&pAdapter->lock, "hptsleeplock", NULL, MTX_DEF);
 1259         callout_init_mtx(&pAdapter->event_timer_connect, &pAdapter->lock, 0);
 1260         callout_init_mtx(&pAdapter->event_timer_disconnect, &pAdapter->lock, 0);
 1261 
 1262         sx_xlock(&hptmv_list_lock);
 1263         pAdapter->next = 0;
 1264 
 1265         if(gIal_Adapter == NULL){
 1266                 gIal_Adapter = pAdapter;
 1267                 pCurAdapter = gIal_Adapter;
 1268         }
 1269         else {
 1270                 pCurAdapter->next = pAdapter;
 1271                 pCurAdapter = pAdapter;
 1272         }
 1273         sx_xunlock(&hptmv_list_lock);
 1274 
 1275         pAdapter->outstandingCommands = 0;
 1276 
 1277         pMvSataAdapter = &(pAdapter->mvSataAdapter);
 1278         _vbus_p->OsExt = (void *)pAdapter; 
 1279         pMvSataAdapter->IALData = pAdapter;
 1280 
 1281         if (bus_dma_tag_create(bus_get_dma_tag(pAdapter->hpt_dev),/* parent */
 1282                         4,      /* alignment */
 1283                         BUS_SPACE_MAXADDR_32BIT+1, /* boundary */
 1284                         BUS_SPACE_MAXADDR,      /* lowaddr */
 1285                         BUS_SPACE_MAXADDR,      /* highaddr */
 1286                         NULL, NULL,             /* filter, filterarg */
 1287                         PAGE_SIZE * (MAX_SG_DESCRIPTORS-1), /* maxsize */
 1288                         MAX_SG_DESCRIPTORS, /* nsegments */
 1289                         0x10000,        /* maxsegsize */
 1290                         BUS_DMA_WAITOK,         /* flags */
 1291                         busdma_lock_mutex,      /* lockfunc */
 1292                         &pAdapter->lock,        /* lockfuncarg */
 1293                         &pAdapter->io_dma_parent /* tag */))
 1294                 {
 1295                         return ENXIO;
 1296         }
 1297 
 1298 
 1299         if (hptmv_allocate_edma_queues(pAdapter))
 1300         {
 1301                 MV_ERROR("RR18xx: Failed to allocate memory for EDMA queues\n");
 1302                 return ENOMEM;
 1303         }
 1304 
 1305         /* also map EPROM address */
 1306         rid = 0x10;
 1307         if (!(pAdapter->mem_res = bus_alloc_resource_any(pAdapter->hpt_dev,
 1308                         SYS_RES_MEMORY, &rid, RF_ACTIVE))
 1309                 ||
 1310                 !(pMvSataAdapter->adapterIoBaseAddress = rman_get_virtual(pAdapter->mem_res)))
 1311         {
 1312                 MV_ERROR("RR18xx: Failed to remap memory space\n");
 1313                 hptmv_free_edma_queues(pAdapter);
 1314                 return ENXIO;
 1315         }
 1316         else
 1317         {
 1318                 KdPrint(("RR18xx: io base address 0x%p\n", pMvSataAdapter->adapterIoBaseAddress));
 1319         }
 1320 
 1321         pMvSataAdapter->adapterId = num_adapters++;
 1322         /* get the revision ID */
 1323         pMvSataAdapter->pciConfigRevisionId = pci_read_config(pAdapter->hpt_dev, PCIR_REVID, 1);
 1324         pMvSataAdapter->pciConfigDeviceId = pci_get_device(pAdapter->hpt_dev);
 1325         
 1326         /* init RR18xx */
 1327         pMvSataAdapter->intCoalThre[0]= 1;
 1328         pMvSataAdapter->intCoalThre[1]= 1;
 1329         pMvSataAdapter->intTimeThre[0] = 1;
 1330         pMvSataAdapter->intTimeThre[1] = 1;
 1331         pMvSataAdapter->pciCommand = 0x0107E371;
 1332         pMvSataAdapter->pciSerrMask = 0xd77fe6ul;
 1333         pMvSataAdapter->pciInterruptMask = 0xd77fe6ul;
 1334         pMvSataAdapter->mvSataEventNotify = hptmv_event_notify;
 1335 
 1336         if (mvSataInitAdapter(pMvSataAdapter) == MV_FALSE)
 1337         {
 1338                 MV_ERROR("RR18xx[%d]: core failed to initialize the adapter\n",
 1339                                  pMvSataAdapter->adapterId);
 1340 unregister:
 1341                 bus_release_resource(pAdapter->hpt_dev, SYS_RES_MEMORY, rid, pAdapter->mem_res);
 1342                 hptmv_free_edma_queues(pAdapter);
 1343                 return ENXIO;
 1344         }
 1345         pAdapter->ver_601 = pMvSataAdapter->pcbVersion;
 1346 
 1347 #ifndef FOR_DEMO
 1348         set_fail_leds(pMvSataAdapter, 0);
 1349 #endif
 1350         
 1351         /* setup command blocks */
 1352         KdPrint(("Allocate command blocks\n"));
 1353         _vbus_(pFreeCommands) = 0;
 1354         pAdapter->pCommandBlocks = 
 1355                 malloc(sizeof(struct _Command) * MAX_COMMAND_BLOCKS_FOR_EACH_VBUS, M_DEVBUF, M_NOWAIT);
 1356         KdPrint(("pCommandBlocks:%p\n",pAdapter->pCommandBlocks));
 1357         if (!pAdapter->pCommandBlocks) {
 1358                 MV_ERROR("insufficient memory\n");
 1359                 goto unregister;
 1360         }
 1361 
 1362         for (i=0; i<MAX_COMMAND_BLOCKS_FOR_EACH_VBUS; i++) {
 1363                 FreeCommand(_VBUS_P &(pAdapter->pCommandBlocks[i]));
 1364         }
 1365 
 1366         /*Set up the bus_dmamap*/
 1367         pAdapter->pbus_dmamap = (PBUS_DMAMAP)malloc (sizeof(struct _BUS_DMAMAP) * MAX_QUEUE_COMM, M_DEVBUF, M_NOWAIT);
 1368         if(!pAdapter->pbus_dmamap) {
 1369                 MV_ERROR("insufficient memory\n");
 1370                 free(pAdapter->pCommandBlocks, M_DEVBUF);
 1371                 goto unregister;
 1372         }
 1373 
 1374         memset((void *)pAdapter->pbus_dmamap, 0, sizeof(struct _BUS_DMAMAP) * MAX_QUEUE_COMM);
 1375         pAdapter->pbus_dmamap_list = 0;
 1376         for (i=0; i < MAX_QUEUE_COMM; i++) {
 1377                 PBUS_DMAMAP  pmap = &(pAdapter->pbus_dmamap[i]);
 1378                 pmap->pAdapter = pAdapter;
 1379                 dmamap_put(pmap);
 1380 
 1381                 if(bus_dmamap_create(pAdapter->io_dma_parent, 0, &pmap->dma_map)) {
 1382                         MV_ERROR("Can not allocate dma map\n");
 1383                         free(pAdapter->pCommandBlocks, M_DEVBUF);
 1384                         free(pAdapter->pbus_dmamap, M_DEVBUF);
 1385                         goto unregister;
 1386                 }
 1387                 callout_init_mtx(&pmap->timeout, &pAdapter->lock, 0);
 1388         }
 1389         /* setup PRD Tables */
 1390         KdPrint(("Allocate PRD Tables\n"));
 1391         pAdapter->pFreePRDLink = 0;
 1392         
 1393         pAdapter->prdTableAddr = (PUCHAR)contigmalloc(
 1394                 (PRD_ENTRIES_SIZE*PRD_TABLES_FOR_VBUS + 32), M_DEVBUF, M_NOWAIT, 0, 0xffffffff, PAGE_SIZE, 0ul);
 1395                 
 1396         KdPrint(("prdTableAddr:%p\n",pAdapter->prdTableAddr));
 1397         if (!pAdapter->prdTableAddr) {
 1398                 MV_ERROR("insufficient PRD Tables\n");
 1399                 goto unregister;
 1400         }
 1401         pAdapter->prdTableAlignedAddr = (PUCHAR)(((ULONG_PTR)pAdapter->prdTableAddr + 0x1f) & ~(ULONG_PTR)0x1fL);
 1402         {
 1403                 PUCHAR PRDTable = pAdapter->prdTableAlignedAddr;
 1404                 for (i=0; i<PRD_TABLES_FOR_VBUS; i++)
 1405                 {
 1406 /*                      KdPrint(("i=%d,pAdapter->pFreePRDLink=%p\n",i,pAdapter->pFreePRDLink)); */
 1407                         FreePRDTable(pAdapter, PRDTable);
 1408                         PRDTable += PRD_ENTRIES_SIZE;
 1409                 }
 1410         }
 1411 
 1412         /* enable the adapter interrupts */
 1413 
 1414         /* configure and start the connected channels*/
 1415         for (channel = 0; channel < MV_SATA_CHANNELS_NUM; channel++)
 1416         {
 1417                 pAdapter->mvChannel[channel].online = MV_FALSE;
 1418                 if (mvSataIsStorageDeviceConnected(pMvSataAdapter, channel)
 1419                         == MV_TRUE)
 1420                 {
 1421                         KdPrint(("RR18xx[%d]: channel %d is connected\n",
 1422                                           pMvSataAdapter->adapterId, channel));
 1423 
 1424                         if (hptmv_init_channel(pAdapter, channel) == 0)
 1425                         {
 1426                                 if (mvSataConfigureChannel(pMvSataAdapter, channel) == MV_FALSE)
 1427                                 {
 1428                                         MV_ERROR("RR18xx[%d]: Failed to configure channel"
 1429                                                          " %d\n",pMvSataAdapter->adapterId, channel);
 1430                                         hptmv_free_channel(pAdapter, channel);
 1431                                 }
 1432                                 else
 1433                                 {
 1434                                         if (start_channel(pAdapter, channel))
 1435                                         {
 1436                                                 MV_ERROR("RR18xx[%d]: Failed to start channel,"
 1437                                                                  " channel=%d\n",pMvSataAdapter->adapterId,
 1438                                                                  channel);
 1439                                                 hptmv_free_channel(pAdapter, channel);
 1440                                         }
 1441                                         pAdapter->mvChannel[channel].online = MV_TRUE; 
 1442                                         /*  mvSataChannelSetEdmaLoopBackMode(pMvSataAdapter,
 1443                                                                                                            channel,
 1444                                                                                                            MV_TRUE);*/
 1445                                 }
 1446                         }
 1447                 }
 1448                 KdPrint(("pAdapter->mvChannel[channel].online:%x, channel:%d\n",
 1449                         pAdapter->mvChannel[channel].online, channel));
 1450         }
 1451 
 1452 #ifdef SUPPORT_ARRAY
 1453         for(i = MAX_ARRAY_DEVICE - 1; i >= 0; i--) {
 1454                 pVDev = ArrayTables(i);
 1455                 mArFreeArrayTable(pVDev);
 1456         }
 1457 #endif
 1458 
 1459         KdPrint(("Initialize Devices\n"));
 1460         for (channel = 0; channel < MV_SATA_CHANNELS_NUM; channel++) {
 1461                 MV_SATA_CHANNEL *pMvSataChannel = pMvSataAdapter->sataChannel[channel];
 1462                 if (pMvSataChannel) {
 1463                         init_vdev_params(pAdapter, channel);
 1464                         IdeRegisterVDevice(&pAdapter->VDevices[channel].u.disk);
 1465                 }
 1466         }
 1467 #ifdef SUPPORT_ARRAY
 1468         CheckArrayCritical(_VBUS_P0);
 1469 #endif
 1470         _vbus_p->nInstances = 1;
 1471         fRegisterVdevice(pAdapter);
 1472 
 1473         for (channel=0;channel<MV_SATA_CHANNELS_NUM;channel++) {
 1474                 pVDev = _vbus_p->pVDevice[channel];
 1475                 if (pVDev && pVDev->vf_online)
 1476                         fCheckBootable(pVDev);
 1477         }
 1478 
 1479 #if defined(SUPPORT_ARRAY) && defined(_RAID5N_)
 1480         init_raid5_memory(_VBUS_P0);
 1481         _vbus_(r5).enable_write_back = 1;
 1482         printf("RR18xx: RAID5 write-back %s\n", _vbus_(r5).enable_write_back? "enabled" : "disabled");
 1483 #endif
 1484 
 1485         mvSataUnmaskAdapterInterrupt(pMvSataAdapter);
 1486         return 0;
 1487 }
 1488 
 1489 int
 1490 MvSataResetChannel(MV_SATA_ADAPTER *pMvSataAdapter, MV_U8 channel)
 1491 {
 1492         IAL_ADAPTER_T   *pAdapter = (IAL_ADAPTER_T *)pMvSataAdapter->IALData;
 1493 
 1494         mvSataDisableChannelDma(pMvSataAdapter, channel);
 1495         /* Flush pending commands */
 1496         mvSataFlushDmaQueue (pMvSataAdapter, channel, MV_FLUSH_TYPE_CALLBACK);
 1497 
 1498         /* Software reset channel */
 1499         if (mvStorageDevATASoftResetDevice(pMvSataAdapter, channel) == MV_FALSE)
 1500         {
 1501                 MV_ERROR("RR18xx [%d,%d]: failed to perform Software reset\n",
 1502                                  pMvSataAdapter->adapterId, channel);
 1503                 hptmv_free_channel(pAdapter, channel);
 1504                 return -1;
 1505         }
 1506         
 1507         /* Hardware reset channel */
 1508         if (mvSataChannelHardReset(pMvSataAdapter, channel)== MV_FALSE)
 1509         {
 1510                 MV_ERROR("RR18xx [%d,%d] Failed to Hard reser the SATA channel\n",
 1511                                  pMvSataAdapter->adapterId, channel);
 1512                 hptmv_free_channel(pAdapter, channel);
 1513                 return -1;
 1514         }
 1515 
 1516         if (mvSataIsStorageDeviceConnected(pMvSataAdapter, channel) == MV_FALSE)
 1517         {
 1518                  MV_ERROR("RR18xx [%d,%d] Failed to Connect Device\n",
 1519                                  pMvSataAdapter->adapterId, channel);
 1520                 hptmv_free_channel(pAdapter, channel);
 1521                 return -1;
 1522         }else
 1523         {
 1524                 MV_ERROR("channel %d: perform recalibrate command", channel);
 1525                 if (!mvStorageDevATAExecuteNonUDMACommand(pMvSataAdapter, channel,
 1526                                                                 MV_NON_UDMA_PROTOCOL_NON_DATA,
 1527                                                                 MV_FALSE,
 1528                                                                 NULL,    /* pBuffer*/
 1529                                                                 0,               /* count  */
 1530                                                                 0,              /*features*/
 1531                                                                                 /* sectorCount */
 1532                                                                 0,
 1533                                                                 0,      /* lbaLow */
 1534                                                                 0,      /* lbaMid */
 1535                                                                         /* lbaHigh */
 1536                                                                 0,
 1537                                                                 0,              /* device */
 1538                                                                                 /* command */
 1539                                                                 0x10))
 1540                         MV_ERROR("channel %d: recalibrate failed", channel);
 1541                 
 1542                 /* Set transfer mode */
 1543                 if((mvStorageDevATASetFeatures(pMvSataAdapter, channel,
 1544                                                 MV_ATA_SET_FEATURES_TRANSFER,
 1545                                                 MV_ATA_TRANSFER_PIO_SLOW, 0, 0, 0) == MV_FALSE) || 
 1546                         (mvStorageDevATASetFeatures(pMvSataAdapter, channel,
 1547                                                 MV_ATA_SET_FEATURES_TRANSFER,
 1548                                                 pAdapter->mvChannel[channel].maxPioModeSupported, 0, 0, 0) == MV_FALSE) ||
 1549                         (mvStorageDevATASetFeatures(pMvSataAdapter, channel,
 1550                                                 MV_ATA_SET_FEATURES_TRANSFER,
 1551                                                 pAdapter->mvChannel[channel].maxUltraDmaModeSupported, 0, 0, 0) == MV_FALSE) )
 1552                 {
 1553                         MV_ERROR("channel %d: Set Features failed", channel);
 1554                         hptmv_free_channel(pAdapter, channel);
 1555                         return -1;
 1556                 }
 1557                 /* Enable EDMA */
 1558                 if (mvSataEnableChannelDma(pMvSataAdapter, channel) == MV_FALSE)
 1559                 {
 1560                         MV_ERROR("Failed to enable DMA, channel=%d", channel);
 1561                         hptmv_free_channel(pAdapter, channel);
 1562                         return -1;
 1563                 }
 1564         }
 1565         return 0;
 1566 }
 1567 
 1568 static int
 1569 fResetActiveCommands(PVBus _vbus_p)
 1570 {
 1571         MV_SATA_ADAPTER *pMvSataAdapter = &((IAL_ADAPTER_T *)_vbus_p->OsExt)->mvSataAdapter;
 1572         MV_U8 channel;
 1573         for (channel=0;channel< MV_SATA_CHANNELS_NUM;channel++) {
 1574                 if (pMvSataAdapter->sataChannel[channel] && pMvSataAdapter->sataChannel[channel]->outstandingCommands) 
 1575                         MvSataResetChannel(pMvSataAdapter,channel);
 1576         }
 1577         return 0;
 1578 }
 1579 
 1580 void fCompleteAllCommandsSynchronously(PVBus _vbus_p)
 1581 {
 1582         UINT cont;
 1583         ULONG ticks = 0;
 1584         MV_U8 channel;
 1585         MV_SATA_ADAPTER *pMvSataAdapter = &((IAL_ADAPTER_T *)_vbus_p->OsExt)->mvSataAdapter;
 1586         MV_SATA_CHANNEL *pMvSataChannel;
 1587 
 1588         do {
 1589 check_cmds:
 1590                 cont = 0;
 1591                 CheckPendingCall(_VBUS_P0);
 1592 #ifdef _RAID5N_
 1593                 dataxfer_poll();
 1594                 xor_poll();
 1595 #endif
 1596                 for (channel=0;channel< MV_SATA_CHANNELS_NUM;channel++) {
 1597                         pMvSataChannel = pMvSataAdapter->sataChannel[channel];
 1598                         if (pMvSataChannel && pMvSataChannel->outstandingCommands) 
 1599                         {
 1600                                 while (pMvSataChannel->outstandingCommands) {
 1601                                         if (!mvSataInterruptServiceRoutine(pMvSataAdapter)) {
 1602                                                 StallExec(1000);
 1603                                                 if (ticks++ > 3000) {
 1604                                                         MvSataResetChannel(pMvSataAdapter,channel);
 1605                                                         goto check_cmds;
 1606                                                 }
 1607                                         }
 1608                                         else 
 1609                                                 ticks = 0;
 1610                                 }
 1611                                 cont = 1;
 1612                         }
 1613                 }
 1614         } while (cont);
 1615 }
 1616 
 1617 void
 1618 fResetVBus(_VBUS_ARG0)
 1619 {
 1620         KdPrint(("fMvResetBus(%p)", _vbus_p));
 1621 
 1622         /* some commands may already finished. */
 1623         CheckPendingCall(_VBUS_P0);
 1624 
 1625         fResetActiveCommands(_vbus_p);
 1626         /* 
 1627          * the other pending commands may still be finished successfully.
 1628          */
 1629         fCompleteAllCommandsSynchronously(_vbus_p);
 1630 
 1631         /* Now there should be no pending commands. No more action needed. */
 1632         CheckIdleCall(_VBUS_P0);
 1633 
 1634         KdPrint(("fMvResetBus() done"));
 1635 }
 1636 
 1637 /*No rescan function*/
 1638 void
 1639 fRescanAllDevice(_VBUS_ARG0)
 1640 {
 1641 }
 1642 
 1643 static MV_BOOLEAN 
 1644 CommandCompletionCB(MV_SATA_ADAPTER *pMvSataAdapter,
 1645                                         MV_U8 channelNum,
 1646                                         MV_COMPLETION_TYPE comp_type,
 1647                                         MV_VOID_PTR commandId,
 1648                                         MV_U16 responseFlags,
 1649                                         MV_U32 timeStamp,
 1650                                         MV_STORAGE_DEVICE_REGISTERS *registerStruct)
 1651 {
 1652         PCommand pCmd = (PCommand) commandId;
 1653         _VBUS_INST(pCmd->pVDevice->pVBus)
 1654 
 1655         if (pCmd->uScratch.sata_param.prdAddr) 
 1656                 FreePRDTable(pMvSataAdapter->IALData,pCmd->uScratch.sata_param.prdAddr);
 1657 
 1658         switch (comp_type)
 1659         {
 1660         case MV_COMPLETION_TYPE_NORMAL:
 1661                 pCmd->Result = RETURN_SUCCESS;
 1662                 break;
 1663         case MV_COMPLETION_TYPE_ABORT:
 1664                 pCmd->Result = RETURN_BUS_RESET;
 1665                 break;
 1666         case MV_COMPLETION_TYPE_ERROR:
 1667                  MV_ERROR("IAL: COMPLETION ERROR, adapter %d, channel %d, flags=%x\n",
 1668                                  pMvSataAdapter->adapterId, channelNum, responseFlags);
 1669 
 1670                 if (responseFlags & 4) {
 1671                         MV_ERROR("ATA regs: error %x, sector count %x, LBA low %x, LBA mid %x,"
 1672                                 " LBA high %x, device %x, status %x\n",
 1673                                 registerStruct->errorRegister,
 1674                                 registerStruct->sectorCountRegister,
 1675                                 registerStruct->lbaLowRegister,
 1676                                 registerStruct->lbaMidRegister,
 1677                                 registerStruct->lbaHighRegister,
 1678                                 registerStruct->deviceRegister,
 1679                                 registerStruct->statusRegister);
 1680                 }
 1681                 /*We can't do handleEdmaError directly here, because CommandCompletionCB is called by 
 1682                  * mv's ISR, if we retry the command, than the internel data structure may be destroyed*/
 1683                 pCmd->uScratch.sata_param.responseFlags = responseFlags;
 1684                 pCmd->uScratch.sata_param.bIdeStatus = registerStruct->statusRegister;
 1685                 pCmd->uScratch.sata_param.errorRegister = registerStruct->errorRegister;
 1686                 pCmd->pVDevice->u.disk.QueueLength--;
 1687                 CallAfterReturn(_VBUS_P (DPC_PROC)handleEdmaError,pCmd);
 1688                 return TRUE;
 1689                 
 1690         default:
 1691                 MV_ERROR(" Unknown completion type (%d)\n", comp_type);
 1692                 return MV_FALSE;
 1693         }
 1694         
 1695         if (pCmd->uCmd.Ide.Command == IDE_COMMAND_VERIFY && pCmd->uScratch.sata_param.cmd_priv > 1) {
 1696                 pCmd->uScratch.sata_param.cmd_priv --;
 1697                 return TRUE;
 1698         }
 1699         pCmd->pVDevice->u.disk.QueueLength--;
 1700         CallAfterReturn(_VBUS_P (DPC_PROC)pCmd->pfnCompletion, pCmd);
 1701         return TRUE;
 1702 }
 1703 
 1704 void
 1705 fDeviceSendCommand(_VBUS_ARG PCommand pCmd)
 1706 {
 1707         MV_SATA_EDMA_PRD_ENTRY  *pPRDTable = 0;
 1708         MV_SATA_ADAPTER *pMvSataAdapter;
 1709         MV_SATA_CHANNEL *pMvSataChannel;
 1710         PVDevice pVDevice = pCmd->pVDevice;
 1711         PDevice  pDevice = &pVDevice->u.disk;
 1712         LBA_T    Lba = pCmd->uCmd.Ide.Lba;
 1713         USHORT   nSector = pCmd->uCmd.Ide.nSectors;
 1714 
 1715         MV_QUEUE_COMMAND_RESULT result;
 1716         MV_QUEUE_COMMAND_INFO commandInfo;      
 1717         MV_UDMA_COMMAND_PARAMS  *pUdmaParams = &commandInfo.commandParams.udmaCommand;
 1718         MV_NONE_UDMA_COMMAND_PARAMS *pNoUdmaParams = &commandInfo.commandParams.NoneUdmaCommand;
 1719 
 1720         MV_BOOLEAN is48bit;
 1721         MV_U8      channel;
 1722         int        i=0;
 1723         
 1724         DECLARE_BUFFER(FPSCAT_GATH, tmpSg);
 1725 
 1726         if (!pDevice->df_on_line) {
 1727                 MV_ERROR("Device is offline");
 1728                 pCmd->Result = RETURN_BAD_DEVICE;
 1729                 CallAfterReturn(_VBUS_P (DPC_PROC)pCmd->pfnCompletion, pCmd);
 1730                 return;
 1731         }
 1732 
 1733         pDevice->HeadPosition = pCmd->uCmd.Ide.Lba + pCmd->uCmd.Ide.nSectors;
 1734         pMvSataChannel = pDevice->mv;
 1735         pMvSataAdapter = pMvSataChannel->mvSataAdapter;
 1736         channel = pMvSataChannel->channelNumber;
 1737         
 1738         /* old RAID0 has hidden lba. Remember to clear dDeHiddenLba when delete array! */
 1739         Lba += pDevice->dDeHiddenLba;
 1740         /* check LBA */
 1741         if (Lba+nSector-1 > pDevice->dDeRealCapacity) {
 1742                 pCmd->Result = RETURN_INVALID_REQUEST;
 1743                 CallAfterReturn(_VBUS_P (DPC_PROC)pCmd->pfnCompletion, pCmd);
 1744                 return;
 1745         }
 1746         
 1747         /*
 1748          * always use 48bit LBA if drive supports it.
 1749          * Some Seagate drives report error if you use a 28-bit command
 1750          * to access sector 0xfffffff.
 1751          */
 1752         is48bit = pMvSataChannel->lba48Address;
 1753 
 1754         switch (pCmd->uCmd.Ide.Command)
 1755         {
 1756         case IDE_COMMAND_READ:
 1757         case IDE_COMMAND_WRITE:
 1758                 if (pDevice->bDeModeSetting<8) goto pio;
 1759                 
 1760                 commandInfo.type = MV_QUEUED_COMMAND_TYPE_UDMA;
 1761                 pUdmaParams->isEXT = is48bit;
 1762                 pUdmaParams->numOfSectors = nSector;
 1763                 pUdmaParams->lowLBAAddress = Lba;
 1764                 pUdmaParams->highLBAAddress = 0;
 1765                 pUdmaParams->prdHighAddr = 0;
 1766                 pUdmaParams->callBack = CommandCompletionCB;
 1767                 pUdmaParams->commandId = (MV_VOID_PTR )pCmd;
 1768                 if(pCmd->uCmd.Ide.Command == IDE_COMMAND_READ)
 1769                         pUdmaParams->readWrite = MV_UDMA_TYPE_READ;
 1770                 else 
 1771                         pUdmaParams->readWrite = MV_UDMA_TYPE_WRITE;
 1772                 
 1773                 if (pCmd->pSgTable && pCmd->cf_physical_sg) {
 1774                         FPSCAT_GATH sg1=tmpSg, sg2=pCmd->pSgTable;
 1775                         do { *sg1++=*sg2; } while ((sg2++->wSgFlag & SG_FLAG_EOT)==0);
 1776                 }
 1777                 else {
 1778                         if (!pCmd->pfnBuildSgl || !pCmd->pfnBuildSgl(_VBUS_P pCmd, tmpSg, 0)) {
 1779 pio:                            
 1780                                 mvSataDisableChannelDma(pMvSataAdapter, channel);
 1781                                 mvSataFlushDmaQueue(pMvSataAdapter, channel, MV_FLUSH_TYPE_CALLBACK);
 1782         
 1783                                 if (pCmd->pSgTable && pCmd->cf_physical_sg==0) {
 1784                                         FPSCAT_GATH sg1=tmpSg, sg2=pCmd->pSgTable;
 1785                                         do { *sg1++=*sg2; } while ((sg2++->wSgFlag & SG_FLAG_EOT)==0);
 1786                                 }
 1787                                 else {
 1788                                         if (!pCmd->pfnBuildSgl || !pCmd->pfnBuildSgl(_VBUS_P pCmd, tmpSg, 1)) {
 1789                                                 pCmd->Result = RETURN_NEED_LOGICAL_SG;
 1790                                                 goto finish_cmd;
 1791                                         }
 1792                                 }
 1793                                                                                 
 1794                                 do {
 1795                                         ULONG size = tmpSg->wSgSize? tmpSg->wSgSize : 0x10000;
 1796                                         ULONG_PTR addr = tmpSg->dSgAddress;
 1797                                         if (size & 0x1ff) {
 1798                                                 pCmd->Result = RETURN_INVALID_REQUEST;
 1799                                                 goto finish_cmd;
 1800                                         }
 1801                                         if (mvStorageDevATAExecuteNonUDMACommand(pMvSataAdapter, channel,
 1802                                                 (pCmd->cf_data_out)?MV_NON_UDMA_PROTOCOL_PIO_DATA_OUT:MV_NON_UDMA_PROTOCOL_PIO_DATA_IN,
 1803                                                 is48bit,
 1804                                                 (MV_U16_PTR)addr, 
 1805                                                 size >> 1,      /* count       */
 1806                                                 0,              /* features  N/A  */
 1807                                                 (MV_U16)(size>>9),      /*sector count*/
 1808                                                 (MV_U16)(  (is48bit? (MV_U16)((Lba >> 16) & 0xFF00) : 0 )  | (UCHAR)(Lba & 0xFF) ), /*lbalow*/
 1809                                                 (MV_U16)((Lba >> 8) & 0xFF), /* lbaMid      */
 1810                                                 (MV_U16)((Lba >> 16) & 0xFF),/* lbaHigh     */
 1811                                                 (MV_U8)(0x40 | (is48bit ? 0 : (UCHAR)(Lba >> 24) & 0xFF )),/* device      */
 1812                                                 (MV_U8)(is48bit ? (pCmd->cf_data_in?IDE_COMMAND_READ_EXT:IDE_COMMAND_WRITE_EXT):pCmd->uCmd.Ide.Command)
 1813                                         )==MV_FALSE)
 1814                                         {
 1815                                                 pCmd->Result = RETURN_IDE_ERROR;
 1816                                                 goto finish_cmd;
 1817                                         }
 1818                                         Lba += size>>9;
 1819                                         if(Lba & 0xF0000000) is48bit = MV_TRUE;
 1820                                 }
 1821                                 while ((tmpSg++->wSgFlag & SG_FLAG_EOT)==0);
 1822                                 pCmd->Result = RETURN_SUCCESS;
 1823 finish_cmd:
 1824                                 mvSataEnableChannelDma(pMvSataAdapter,channel);
 1825                                 CallAfterReturn(_VBUS_P (DPC_PROC)pCmd->pfnCompletion, pCmd);
 1826                                 return;
 1827                         }
 1828                 }
 1829                 
 1830                 pPRDTable = (MV_SATA_EDMA_PRD_ENTRY *) AllocatePRDTable(pMvSataAdapter->IALData);
 1831                 KdPrint(("pPRDTable:%p\n",pPRDTable));
 1832                 if (!pPRDTable) {
 1833                         pCmd->Result = RETURN_DEVICE_BUSY;
 1834                         CallAfterReturn(_VBUS_P (DPC_PROC)pCmd->pfnCompletion, pCmd);
 1835                         HPT_ASSERT(0);
 1836                         return;
 1837                 }
 1838 
 1839                 do{
 1840                         pPRDTable[i].highBaseAddr = (sizeof(tmpSg->dSgAddress)>4 ? (MV_U32)(tmpSg->dSgAddress>>32) : 0);
 1841                         pPRDTable[i].flags = (MV_U16)tmpSg->wSgFlag;
 1842                         pPRDTable[i].byteCount = (MV_U16)tmpSg->wSgSize;
 1843                         pPRDTable[i].lowBaseAddr = (MV_U32)tmpSg->dSgAddress;
 1844                         pPRDTable[i].reserved = 0;
 1845                         i++;
 1846                 }while((tmpSg++->wSgFlag & SG_FLAG_EOT)==0);
 1847                 
 1848                 pUdmaParams->prdLowAddr = (ULONG)fOsPhysicalAddress(pPRDTable);
 1849                 if ((pUdmaParams->numOfSectors == 256) && (pMvSataChannel->lba48Address == MV_FALSE)) {
 1850                         pUdmaParams->numOfSectors = 0;
 1851                 }
 1852                 
 1853                 pCmd->uScratch.sata_param.prdAddr = (PVOID)pPRDTable;
 1854 
 1855                 result = mvSataQueueCommand(pMvSataAdapter, channel, &commandInfo);
 1856 
 1857                 if (result != MV_QUEUE_COMMAND_RESULT_OK)
 1858                 {
 1859 queue_failed:
 1860                         switch (result)
 1861                         {
 1862                         case MV_QUEUE_COMMAND_RESULT_BAD_LBA_ADDRESS:
 1863                                 MV_ERROR("IAL Error: Edma Queue command failed. Bad LBA "
 1864                                                  "LBA[31:0](0x%08x)\n", pUdmaParams->lowLBAAddress);
 1865                                 pCmd->Result = RETURN_IDE_ERROR;
 1866                                 break;
 1867                         case MV_QUEUE_COMMAND_RESULT_QUEUED_MODE_DISABLED:
 1868                                 MV_ERROR("IAL Error: Edma Queue command failed. EDMA"
 1869                                                  " disabled adapter %d channel %d\n",
 1870                                                  pMvSataAdapter->adapterId, channel);
 1871                                 mvSataEnableChannelDma(pMvSataAdapter,channel);
 1872                                 pCmd->Result = RETURN_IDE_ERROR;
 1873                                 break;
 1874                         case MV_QUEUE_COMMAND_RESULT_FULL:
 1875                                 MV_ERROR("IAL Error: Edma Queue command failed. Queue is"
 1876                                                  " Full adapter %d channel %d\n",
 1877                                                  pMvSataAdapter->adapterId, channel);
 1878                                 pCmd->Result = RETURN_DEVICE_BUSY;
 1879                                 break;
 1880                         case MV_QUEUE_COMMAND_RESULT_BAD_PARAMS:
 1881                                 MV_ERROR("IAL Error: Edma Queue command failed. (Bad "
 1882                                                  "Params), pMvSataAdapter: %p,  pSataChannel: %p.\n",
 1883                                                  pMvSataAdapter, pMvSataAdapter->sataChannel[channel]);
 1884                                 pCmd->Result = RETURN_IDE_ERROR;
 1885                                 break;
 1886                         default:
 1887                                 MV_ERROR("IAL Error: Bad result value (%d) from queue"
 1888                                                  " command\n", result);
 1889                                 pCmd->Result = RETURN_IDE_ERROR;
 1890                         }
 1891                         if(pPRDTable) 
 1892                                 FreePRDTable(pMvSataAdapter->IALData,pPRDTable);
 1893                         CallAfterReturn(_VBUS_P (DPC_PROC)pCmd->pfnCompletion, pCmd);
 1894                 }
 1895                 pDevice->QueueLength++;
 1896                 return;
 1897                 
 1898         case IDE_COMMAND_VERIFY:
 1899                 commandInfo.type = MV_QUEUED_COMMAND_TYPE_NONE_UDMA;
 1900                 pNoUdmaParams->bufPtr = NULL;
 1901                 pNoUdmaParams->callBack = CommandCompletionCB;
 1902                 pNoUdmaParams->commandId = (MV_VOID_PTR)pCmd;
 1903                 pNoUdmaParams->count = 0;
 1904                 pNoUdmaParams->features = 0;
 1905                 pNoUdmaParams->protocolType = MV_NON_UDMA_PROTOCOL_NON_DATA;
 1906                 
 1907                 pCmd->uScratch.sata_param.cmd_priv = 1;
 1908                 if (pMvSataChannel->lba48Address == MV_TRUE){
 1909                         pNoUdmaParams->command = MV_ATA_COMMAND_READ_VERIFY_SECTORS_EXT;
 1910                         pNoUdmaParams->isEXT = MV_TRUE;
 1911                         pNoUdmaParams->lbaHigh = (MV_U16)((Lba & 0xff0000) >> 16);
 1912                         pNoUdmaParams->lbaMid = (MV_U16)((Lba & 0xff00) >> 8);   
 1913                         pNoUdmaParams->lbaLow = 
 1914                                 (MV_U16)(((Lba & 0xff000000) >> 16)| (Lba & 0xff));
 1915                         pNoUdmaParams->sectorCount = nSector;
 1916                         pNoUdmaParams->device = 0x40;
 1917                         result = mvSataQueueCommand(pMvSataAdapter, channel, &commandInfo);
 1918                         if (result != MV_QUEUE_COMMAND_RESULT_OK){
 1919                                 goto queue_failed;
 1920                         }
 1921                         return;
 1922                 }
 1923                 else{
 1924                         pNoUdmaParams->command = MV_ATA_COMMAND_READ_VERIFY_SECTORS;
 1925                         pNoUdmaParams->isEXT = MV_FALSE;
 1926                         pNoUdmaParams->lbaHigh = (MV_U16)((Lba & 0xff0000) >> 16);
 1927                         pNoUdmaParams->lbaMid = (MV_U16)((Lba & 0xff00) >> 8);   
 1928                         pNoUdmaParams->lbaLow = (MV_U16)(Lba & 0xff);
 1929                         pNoUdmaParams->sectorCount = 0xff & nSector;
 1930                         pNoUdmaParams->device = (MV_U8)(0x40 |
 1931                                 ((Lba & 0xf000000) >> 24));
 1932                         pNoUdmaParams->callBack = CommandCompletionCB;
 1933                         result = mvSataQueueCommand(pMvSataAdapter, channel, &commandInfo);
 1934                         /*FIXME: how about the commands already queued? but marvel also forgets to consider this*/
 1935                         if (result != MV_QUEUE_COMMAND_RESULT_OK){
 1936                                 goto queue_failed;
 1937                         }
 1938                 }
 1939                 break;
 1940         default:
 1941                 pCmd->Result = RETURN_INVALID_REQUEST;
 1942                 CallAfterReturn(_VBUS_P (DPC_PROC)pCmd->pfnCompletion, pCmd);
 1943                 break;
 1944         }
 1945 }
 1946 
 1947 /**********************************************************
 1948  *
 1949  *      Probe the hostadapter.
 1950  *
 1951  **********************************************************/
 1952 static int
 1953 hpt_probe(device_t dev)
 1954 {
 1955         if ((pci_get_vendor(dev) == MV_SATA_VENDOR_ID) &&
 1956                 (pci_get_device(dev) == MV_SATA_DEVICE_ID_5081
 1957 #ifdef FOR_DEMO
 1958                 || pci_get_device(dev) == MV_SATA_DEVICE_ID_5080
 1959 #endif
 1960                 ))
 1961         {
 1962                 KdPrintI((CONTROLLER_NAME " found\n"));
 1963                 device_set_desc(dev, CONTROLLER_NAME);
 1964                 return (BUS_PROBE_DEFAULT);
 1965         }
 1966         else
 1967                 return(ENXIO);
 1968 }
 1969 
 1970 /***********************************************************
 1971  *
 1972  *      Auto configuration:  attach and init a host adapter.
 1973  *
 1974  ***********************************************************/
 1975 static int
 1976 hpt_attach(device_t dev)
 1977 {
 1978         IAL_ADAPTER_T * pAdapter = device_get_softc(dev);
 1979         int rid;
 1980         union ccb *ccb;
 1981         struct cam_devq *devq;
 1982         struct cam_sim *hpt_vsim;
 1983 
 1984         device_printf(dev, "%s Version %s \n", DRIVER_NAME, DRIVER_VERSION);
 1985 
 1986         pAdapter->hpt_dev = dev;
 1987         
 1988         rid = init_adapter(pAdapter);
 1989         if (rid)
 1990                 return rid;
 1991 
 1992         rid = 0;
 1993         if ((pAdapter->hpt_irq = bus_alloc_resource_any(pAdapter->hpt_dev, SYS_RES_IRQ, &rid, RF_SHAREABLE | RF_ACTIVE)) == NULL)
 1994         {
 1995                 hpt_printk(("can't allocate interrupt\n"));
 1996                 return(ENXIO);
 1997         }
 1998 
 1999         if (bus_setup_intr(pAdapter->hpt_dev, pAdapter->hpt_irq,
 2000                                 INTR_TYPE_CAM | INTR_MPSAFE,
 2001                                 NULL, hpt_intr, pAdapter, &pAdapter->hpt_intr))
 2002         {
 2003                 hpt_printk(("can't set up interrupt\n"));
 2004                 free(pAdapter, M_DEVBUF);
 2005                 return(ENXIO);
 2006         }
 2007 
 2008 
 2009         ccb = xpt_alloc_ccb();
 2010         ccb->ccb_h.pinfo.priority = 1;
 2011         ccb->ccb_h.pinfo.index = CAM_UNQUEUED_INDEX;
 2012 
 2013         /*
 2014          * Create the device queue for our SIM(s).
 2015          */
 2016         if((devq = cam_simq_alloc(8/*MAX_QUEUE_COMM*/)) == NULL)
 2017         {
 2018                 KdPrint(("ENXIO\n"));
 2019                 return ENOMEM;
 2020         }
 2021 
 2022         /*
 2023          * Construct our SIM entry
 2024          */
 2025         hpt_vsim = cam_sim_alloc(hpt_action, hpt_poll, __str(PROC_DIR_NAME),
 2026                         pAdapter, device_get_unit(pAdapter->hpt_dev),
 2027                         &pAdapter->lock, 1, 8, devq);
 2028         if (hpt_vsim == NULL) {
 2029                 cam_simq_free(devq);
 2030                 return ENOMEM;
 2031         }
 2032 
 2033         mtx_lock(&pAdapter->lock);
 2034         if (xpt_bus_register(hpt_vsim, dev, 0) != CAM_SUCCESS)
 2035         {
 2036                 cam_sim_free(hpt_vsim, /*free devq*/ TRUE);
 2037                 mtx_unlock(&pAdapter->lock);
 2038                 hpt_vsim = NULL;
 2039                 return ENXIO;
 2040         }
 2041 
 2042         if(xpt_create_path(&pAdapter->path, /*periph */ NULL,
 2043                         cam_sim_path(hpt_vsim), CAM_TARGET_WILDCARD,
 2044                         CAM_LUN_WILDCARD) != CAM_REQ_CMP)
 2045         {
 2046                 xpt_bus_deregister(cam_sim_path(hpt_vsim));
 2047                 cam_sim_free(hpt_vsim, /*free_devq*/TRUE);
 2048                 mtx_unlock(&pAdapter->lock);
 2049                 hpt_vsim = NULL;
 2050                 return ENXIO;
 2051         }
 2052         mtx_unlock(&pAdapter->lock);
 2053 
 2054         xpt_setup_ccb(&(ccb->ccb_h), pAdapter->path, /*priority*/5);
 2055         ccb->ccb_h.func_code = XPT_SASYNC_CB;
 2056         ccb->csa.event_enable = AC_LOST_DEVICE;
 2057         ccb->csa.callback = hpt_async;
 2058         ccb->csa.callback_arg = hpt_vsim;
 2059         xpt_action((union ccb *)ccb);
 2060         xpt_free_ccb(ccb);
 2061 
 2062         if (device_get_unit(dev) == 0) {
 2063                 /* Start the work thread.  XXX */
 2064                 launch_worker_thread();
 2065         }
 2066 
 2067         return 0;
 2068 }
 2069 
 2070 static int
 2071 hpt_detach(device_t dev)
 2072 {       
 2073         return (EBUSY);
 2074 }
 2075 
 2076 
 2077 /***************************************************************
 2078  * The poll function is used to simulate the interrupt when
 2079  * the interrupt subsystem is not functioning.
 2080  *
 2081  ***************************************************************/
 2082 static void
 2083 hpt_poll(struct cam_sim *sim)
 2084 {
 2085 
 2086         hpt_intr_locked((void *)cam_sim_softc(sim));
 2087 }
 2088 
 2089 /****************************************************************
 2090  *      Name:   hpt_intr
 2091  *      Description:    Interrupt handler.
 2092  ****************************************************************/
 2093 static void
 2094 hpt_intr(void *arg)
 2095 {
 2096         IAL_ADAPTER_T *pAdapter;
 2097 
 2098         pAdapter = arg;
 2099         mtx_lock(&pAdapter->lock);
 2100         hpt_intr_locked(pAdapter);
 2101         mtx_unlock(&pAdapter->lock);
 2102 }
 2103 
 2104 static void
 2105 hpt_intr_locked(IAL_ADAPTER_T *pAdapter)
 2106 {
 2107 
 2108         mtx_assert(&pAdapter->lock, MA_OWNED);
 2109         /* KdPrintI(("----- Entering Isr() -----\n")); */
 2110         if (mvSataInterruptServiceRoutine(&pAdapter->mvSataAdapter) == MV_TRUE)
 2111         {
 2112                 _VBUS_INST(&pAdapter->VBus)
 2113                 CheckPendingCall(_VBUS_P0);
 2114         }
 2115 
 2116         /* KdPrintI(("----- Leaving Isr() -----\n")); */
 2117 }
 2118 
 2119 /**********************************************************
 2120  *                      Asynchronous Events
 2121  *********************************************************/
 2122 #if (!defined(UNREFERENCED_PARAMETER))
 2123 #define UNREFERENCED_PARAMETER(x) (void)(x)
 2124 #endif
 2125 
 2126 static void
 2127 hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path,
 2128     void * arg)
 2129 {
 2130         /* debug XXXX */
 2131         panic("Here");
 2132         UNREFERENCED_PARAMETER(callback_arg);
 2133         UNREFERENCED_PARAMETER(code);
 2134         UNREFERENCED_PARAMETER(path);
 2135         UNREFERENCED_PARAMETER(arg);
 2136 
 2137 }
 2138 
 2139 static void
 2140 FlushAdapter(IAL_ADAPTER_T *pAdapter)
 2141 {
 2142         int i;
 2143 
 2144         hpt_printk(("flush all devices\n"));
 2145         
 2146         /* flush all devices */
 2147         for (i=0; i<MAX_VDEVICE_PER_VBUS; i++) {
 2148                 PVDevice pVDev = pAdapter->VBus.pVDevice[i];
 2149                 if(pVDev) fFlushVDev(pVDev);
 2150         }
 2151 }
 2152 
 2153 static int
 2154 hpt_shutdown(device_t dev)
 2155 {
 2156                 IAL_ADAPTER_T *pAdapter;
 2157         
 2158                 pAdapter = device_get_softc(dev);
 2159 
 2160                 EVENTHANDLER_DEREGISTER(shutdown_final, pAdapter->eh);
 2161                 mtx_lock(&pAdapter->lock);
 2162                 FlushAdapter(pAdapter);
 2163                 mtx_unlock(&pAdapter->lock);
 2164                   /* give the flush some time to happen, 
 2165                     *otherwise "shutdown -p now" will make file system corrupted */
 2166                 DELAY(1000 * 1000 * 5);
 2167                 return 0;
 2168 }
 2169 
 2170 void
 2171 Check_Idle_Call(IAL_ADAPTER_T *pAdapter)
 2172 {
 2173         _VBUS_INST(&pAdapter->VBus)
 2174 
 2175         if (mWaitingForIdle(_VBUS_P0)) {
 2176                 CheckIdleCall(_VBUS_P0);
 2177 #ifdef SUPPORT_ARRAY
 2178                 {
 2179                         int i;
 2180                         PVDevice pArray;
 2181                         for(i = 0; i < MAX_ARRAY_PER_VBUS; i++){
 2182                                 if ((pArray=ArrayTables(i))->u.array.dArStamp==0) 
 2183                                         continue; 
 2184                                 else if (pArray->u.array.rf_auto_rebuild) {
 2185                                                 KdPrint(("auto rebuild.\n"));
 2186                                                 pArray->u.array.rf_auto_rebuild = 0;
 2187                                                 hpt_queue_dpc((HPT_DPC)hpt_rebuild_data_block, pAdapter, pArray, DUPLICATE);
 2188                                 }
 2189                         }
 2190                 }
 2191 #endif
 2192         }
 2193         /* launch the awaiting commands blocked by mWaitingForIdle */
 2194         while(pAdapter->pending_Q!= NULL)
 2195         {
 2196                 _VBUS_INST(&pAdapter->VBus)
 2197                 union ccb *ccb = (union ccb *)pAdapter->pending_Q->ccb_h.ccb_ccb_ptr;
 2198                 hpt_free_ccb(&pAdapter->pending_Q, ccb);
 2199                 CallAfterReturn(_VBUS_P (DPC_PROC)OsSendCommand, ccb);
 2200         }
 2201 }
 2202 
 2203 static void
 2204 ccb_done(union ccb *ccb)
 2205 {
 2206         PBUS_DMAMAP pmap = (PBUS_DMAMAP)ccb->ccb_adapter;
 2207         IAL_ADAPTER_T * pAdapter = pmap->pAdapter;
 2208         KdPrintI(("ccb_done: ccb %p status %x\n", ccb, ccb->ccb_h.status));
 2209 
 2210         dmamap_put(pmap);
 2211         xpt_done(ccb);
 2212 
 2213         pAdapter->outstandingCommands--;
 2214 
 2215         if (pAdapter->outstandingCommands == 0)
 2216         {
 2217                 if(DPC_Request_Nums == 0)
 2218                         Check_Idle_Call(pAdapter);
 2219                 wakeup(pAdapter);
 2220         }
 2221 }
 2222 
 2223 /****************************************************************
 2224  *      Name:   hpt_action
 2225  *      Description:    Process a queued command from the CAM layer.
 2226  *      Parameters:             sim - Pointer to SIM object
 2227  *                                      ccb - Pointer to SCSI command structure.
 2228  ****************************************************************/
 2229 
 2230 void
 2231 hpt_action(struct cam_sim *sim, union ccb *ccb)
 2232 {
 2233         IAL_ADAPTER_T * pAdapter = (IAL_ADAPTER_T *) cam_sim_softc(sim);
 2234         PBUS_DMAMAP  pmap;
 2235         _VBUS_INST(&pAdapter->VBus)
 2236 
 2237         mtx_assert(&pAdapter->lock, MA_OWNED);
 2238         CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("hpt_action\n"));
 2239         KdPrint(("hpt_action(%lx,%lx{%x})\n", (u_long)sim, (u_long)ccb, ccb->ccb_h.func_code));
 2240 
 2241         switch (ccb->ccb_h.func_code)
 2242         {
 2243                 case XPT_SCSI_IO:       /* Execute the requested I/O operation */
 2244                 {
 2245                         /* ccb->ccb_h.path_id is not our bus id - don't check it */
 2246 
 2247                         if (ccb->ccb_h.target_lun)      {
 2248                                 ccb->ccb_h.status = CAM_LUN_INVALID;
 2249                                 xpt_done(ccb);
 2250                                 return;
 2251                         }
 2252                         if (ccb->ccb_h.target_id >= MAX_VDEVICE_PER_VBUS ||
 2253                                 pAdapter->VBus.pVDevice[ccb->ccb_h.target_id]==0) {
 2254                                 ccb->ccb_h.status = CAM_TID_INVALID;
 2255                                 xpt_done(ccb);
 2256                                 return;
 2257                         }
 2258 
 2259                         if (pAdapter->outstandingCommands==0 && DPC_Request_Nums==0)
 2260                                 Check_Idle_Call(pAdapter);
 2261 
 2262                         pmap = dmamap_get(pAdapter);
 2263                         HPT_ASSERT(pmap);
 2264                         ccb->ccb_adapter = pmap;
 2265                         memset((void *)pmap->psg, 0,  sizeof(pmap->psg));
 2266 
 2267                         if (mWaitingForIdle(_VBUS_P0))
 2268                                 hpt_queue_ccb(&pAdapter->pending_Q, ccb);
 2269                         else
 2270                                 OsSendCommand(_VBUS_P ccb);
 2271 
 2272                         /* KdPrint(("leave scsiio\n")); */
 2273                         break;
 2274                 }
 2275 
 2276                 case XPT_RESET_BUS:
 2277                         KdPrint(("reset bus\n"));
 2278                         fResetVBus(_VBUS_P0);
 2279                         xpt_done(ccb);
 2280                         break;
 2281 
 2282                 case XPT_RESET_DEV:     /* Bus Device Reset the specified SCSI device */
 2283                 case XPT_ABORT:                 /* Abort the specified CCB */
 2284                 case XPT_TERM_IO:               /* Terminate the I/O process */
 2285                         /* XXX Implement */
 2286                         ccb->ccb_h.status = CAM_REQ_INVALID;
 2287                         xpt_done(ccb);
 2288                         break;
 2289 
 2290                 case XPT_GET_TRAN_SETTINGS:
 2291                 case XPT_SET_TRAN_SETTINGS:
 2292                         /* XXX Implement */
 2293                         ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
 2294                         xpt_done(ccb);
 2295                         break;
 2296 
 2297                 case XPT_CALC_GEOMETRY:
 2298                         cam_calc_geometry(&ccb->ccg, 1);
 2299                         xpt_done(ccb);
 2300                         break;
 2301 
 2302                 case XPT_PATH_INQ:              /* Path routing inquiry */
 2303                 {
 2304                         struct ccb_pathinq *cpi = &ccb->cpi;
 2305 
 2306                         cpi->version_num = 1; /* XXX??? */
 2307                         cpi->hba_inquiry = PI_SDTR_ABLE;
 2308                         cpi->target_sprt = 0;
 2309                         /* Not necessary to reset bus */
 2310                         cpi->hba_misc = PIM_NOBUSRESET;
 2311                         cpi->hba_eng_cnt = 0;
 2312 
 2313                         cpi->max_target = MAX_VDEVICE_PER_VBUS;
 2314                         cpi->max_lun = 0;
 2315                         cpi->initiator_id = MAX_VDEVICE_PER_VBUS;
 2316 
 2317                         cpi->bus_id = cam_sim_bus(sim);
 2318                         cpi->base_transfer_speed = 3300;
 2319                         strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
 2320                         strlcpy(cpi->hba_vid, "HPT   ", HBA_IDLEN);
 2321                         strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
 2322                         cpi->unit_number = cam_sim_unit(sim);
 2323                         cpi->transport = XPORT_SPI;
 2324                         cpi->transport_version = 2;
 2325                         cpi->protocol = PROTO_SCSI;
 2326                         cpi->protocol_version = SCSI_REV_2;
 2327                         cpi->ccb_h.status = CAM_REQ_CMP;
 2328                         xpt_done(ccb);
 2329                         break;
 2330                 }
 2331 
 2332                 default:
 2333                         KdPrint(("invalid cmd\n"));
 2334                         ccb->ccb_h.status = CAM_REQ_INVALID;
 2335                         xpt_done(ccb);
 2336                         break;
 2337         }
 2338         /* KdPrint(("leave hpt_action..............\n")); */
 2339 }
 2340 
 2341 /* shall be called at lock_driver() */
 2342 static void
 2343 hpt_queue_ccb(union ccb **ccb_Q, union ccb *ccb)
 2344 {
 2345         if(*ccb_Q == NULL)
 2346                 ccb->ccb_h.ccb_ccb_ptr = ccb;
 2347         else {
 2348                 ccb->ccb_h.ccb_ccb_ptr = (*ccb_Q)->ccb_h.ccb_ccb_ptr;
 2349                 (*ccb_Q)->ccb_h.ccb_ccb_ptr = (char *)ccb;
 2350         }
 2351 
 2352         *ccb_Q = ccb;
 2353 }
 2354 
 2355 /* shall be called at lock_driver() */
 2356 static void
 2357 hpt_free_ccb(union ccb **ccb_Q, union ccb *ccb)
 2358 {
 2359         union ccb *TempCCB;
 2360 
 2361         TempCCB = *ccb_Q;
 2362 
 2363         if(ccb->ccb_h.ccb_ccb_ptr == ccb) /*it means SCpnt is the last one in CURRCMDs*/
 2364                 *ccb_Q = NULL;
 2365         else {
 2366                 while(TempCCB->ccb_h.ccb_ccb_ptr != (char *)ccb)
 2367                         TempCCB = (union ccb *)TempCCB->ccb_h.ccb_ccb_ptr;
 2368 
 2369                 TempCCB->ccb_h.ccb_ccb_ptr = ccb->ccb_h.ccb_ccb_ptr;
 2370 
 2371                 if(*ccb_Q == ccb)
 2372                         *ccb_Q = TempCCB;
 2373         }
 2374 }
 2375 
 2376 #ifdef SUPPORT_ARRAY
 2377 /***************************************************************************
 2378  * Function:     hpt_worker_thread
 2379  * Description:  Do background rebuilding. Execute in kernel thread context.
 2380  * Returns:      None
 2381  ***************************************************************************/
 2382 static void hpt_worker_thread(void)
 2383 {
 2384 
 2385         for(;;) {
 2386                 mtx_lock(&DpcQueue_Lock);
 2387                 while (DpcQueue_First!=DpcQueue_Last) {
 2388                         ST_HPT_DPC p;
 2389                         p = DpcQueue[DpcQueue_First];
 2390                         DpcQueue_First++;
 2391                         DpcQueue_First %= MAX_DPC;
 2392                         DPC_Request_Nums++;
 2393                         mtx_unlock(&DpcQueue_Lock);
 2394                         p.dpc(p.pAdapter, p.arg, p.flags);
 2395 
 2396                         mtx_lock(&p.pAdapter->lock);
 2397                         mtx_lock(&DpcQueue_Lock);
 2398                         DPC_Request_Nums--;
 2399                         /* since we may have prevented Check_Idle_Call, do it here */
 2400                         if (DPC_Request_Nums==0) {
 2401                                 if (p.pAdapter->outstandingCommands == 0) {
 2402                                         _VBUS_INST(&p.pAdapter->VBus);
 2403                                         Check_Idle_Call(p.pAdapter);
 2404                                         CheckPendingCall(_VBUS_P0);
 2405                                 }
 2406                         }
 2407                         mtx_unlock(&p.pAdapter->lock);
 2408                         mtx_unlock(&DpcQueue_Lock);
 2409 
 2410                         /*Schedule out*/
 2411                         if (SIGISMEMBER(curproc->p_siglist, SIGSTOP)) {
 2412                                 /* abort rebuilding process. */
 2413                                 IAL_ADAPTER_T *pAdapter;
 2414                                 PVDevice      pArray;
 2415                                 PVBus         _vbus_p;
 2416                                 int i;
 2417 
 2418                                 sx_slock(&hptmv_list_lock);
 2419                                 pAdapter = gIal_Adapter;
 2420 
 2421                                 while(pAdapter != NULL){
 2422                                         mtx_lock(&pAdapter->lock);
 2423                                         _vbus_p = &pAdapter->VBus;
 2424 
 2425                                         for (i=0;i<MAX_ARRAY_PER_VBUS;i++) 
 2426                                         {
 2427                                                 if ((pArray=ArrayTables(i))->u.array.dArStamp==0) 
 2428                                                         continue; 
 2429                                                 else if (pArray->u.array.rf_rebuilding ||
 2430                                                                 pArray->u.array.rf_verifying ||
 2431                                                                 pArray->u.array.rf_initializing)
 2432                                                         {
 2433                                                                 pArray->u.array.rf_abort_rebuild = 1;
 2434                                                         }
 2435                                         }
 2436                                         mtx_unlock(&pAdapter->lock);
 2437                                         pAdapter = pAdapter->next;
 2438                                 }
 2439                                 sx_sunlock(&hptmv_list_lock);
 2440                         }
 2441                         mtx_lock(&DpcQueue_Lock);
 2442                 }
 2443                 mtx_unlock(&DpcQueue_Lock);
 2444 
 2445 /*Remove this debug option*/
 2446 /*
 2447 #ifdef DEBUG
 2448                 if (SIGISMEMBER(curproc->p_siglist, SIGSTOP))
 2449                         pause("hptrdy", 2*hz);
 2450 #endif
 2451 */
 2452                 kproc_suspend_check(curproc);
 2453                 pause("-", 2*hz);  /* wait for something to do */
 2454         }
 2455 }
 2456 
 2457 static struct proc *hptdaemonproc;
 2458 static struct kproc_desc hpt_kp = {
 2459         "hpt_wt",
 2460         hpt_worker_thread,
 2461         &hptdaemonproc
 2462 };
 2463 
 2464 /*Start this thread in the hpt_attach, to prevent kernel from loading it without our controller.*/
 2465 static void
 2466 launch_worker_thread(void)
 2467 {
 2468         IAL_ADAPTER_T *pAdapTemp;
 2469         
 2470         kproc_start(&hpt_kp);
 2471 
 2472         sx_slock(&hptmv_list_lock);
 2473         for (pAdapTemp = gIal_Adapter; pAdapTemp; pAdapTemp = pAdapTemp->next) {
 2474 
 2475                 _VBUS_INST(&pAdapTemp->VBus)
 2476                 int i;
 2477                 PVDevice pVDev;
 2478 
 2479                 for(i = 0; i < MAX_ARRAY_PER_VBUS; i++) 
 2480                         if ((pVDev=ArrayTables(i))->u.array.dArStamp==0) 
 2481                                 continue; 
 2482                         else{
 2483                                 if (pVDev->u.array.rf_need_rebuild && !pVDev->u.array.rf_rebuilding)
 2484                                         hpt_queue_dpc((HPT_DPC)hpt_rebuild_data_block, pAdapTemp, pVDev,
 2485                                         (UCHAR)((pVDev->u.array.CriticalMembers || pVDev->VDeviceType == VD_RAID_1)? DUPLICATE : REBUILD_PARITY));
 2486                         }
 2487         }
 2488         sx_sunlock(&hptmv_list_lock);
 2489 
 2490         /*
 2491          * hpt_worker_thread needs to be suspended after shutdown sync, when fs sync finished.
 2492          */
 2493         EVENTHANDLER_REGISTER(shutdown_post_sync, kproc_shutdown, hptdaemonproc,
 2494             SHUTDOWN_PRI_LAST);
 2495 }
 2496 /*
 2497  *SYSINIT(hptwt, SI_SUB_KTHREAD_IDLE, SI_ORDER_FIRST, launch_worker_thread, NULL);
 2498 */
 2499 
 2500 #endif
 2501 
 2502 /********************************************************************************/
 2503 
 2504 int HPTLIBAPI fOsBuildSgl(_VBUS_ARG PCommand pCmd, FPSCAT_GATH pSg, int logical)
 2505 {
 2506         union ccb *ccb = (union ccb *)pCmd->pOrgCommand;
 2507  
 2508         if (logical) {
 2509                 pSg->dSgAddress = (ULONG_PTR)(UCHAR *)ccb->csio.data_ptr;
 2510                 pSg->wSgSize = ccb->csio.dxfer_len;
 2511                 pSg->wSgFlag = SG_FLAG_EOT;
 2512                 return TRUE;
 2513         }
 2514         /* since we have provided physical sg, nobody will ask us to build physical sg */
 2515         HPT_ASSERT(0);
 2516         return FALSE;
 2517 }
 2518 
 2519 /*******************************************************************************/
 2520 ULONG HPTLIBAPI
 2521 GetStamp(void)
 2522 {
 2523         /* 
 2524          * the system variable, ticks, can't be used since it hasn't yet been active 
 2525          * when our driver starts (ticks==0, it's a invalid stamp value)
 2526          */
 2527         ULONG stamp;
 2528         do { stamp = random(); } while (stamp==0);
 2529         return stamp;
 2530 }
 2531 
 2532 
 2533 static void
 2534 SetInquiryData(PINQUIRYDATA inquiryData, PVDevice pVDev)
 2535 {
 2536         int i;
 2537         IDENTIFY_DATA2 *pIdentify = (IDENTIFY_DATA2*)pVDev->u.disk.mv->identifyDevice;
 2538 
 2539         inquiryData->DeviceType = T_DIRECT; /*DIRECT_ACCESS_DEVICE*/
 2540         inquiryData->AdditionalLength = (UCHAR)(sizeof(INQUIRYDATA) - 5);
 2541 #ifndef SERIAL_CMDS
 2542         inquiryData->CommandQueue = 1;
 2543 #endif
 2544 
 2545         switch(pVDev->VDeviceType) {
 2546         case VD_SINGLE_DISK:
 2547         case VD_ATAPI:
 2548         case VD_REMOVABLE:
 2549                 /* Set the removable bit, if applicable. */
 2550                 if ((pVDev->u.disk.df_removable_drive) || (pIdentify->GeneralConfiguration & 0x80))
 2551                         inquiryData->RemovableMedia = 1;
 2552 
 2553                 /* Fill in vendor identification fields. */
 2554                 for (i = 0; i < 20; i += 2) {                           
 2555                         inquiryData->VendorId[i]        = ((PUCHAR)pIdentify->ModelNumber)[i + 1];
 2556                         inquiryData->VendorId[i+1]      = ((PUCHAR)pIdentify->ModelNumber)[i];
 2557 
 2558                 }
 2559 
 2560                 /* Initialize unused portion of product id. */
 2561                 for (i = 0; i < 4; i++) inquiryData->ProductId[12+i] = ' ';
 2562 
 2563                 /* firmware revision */
 2564                 for (i = 0; i < 4; i += 2)
 2565                 {                               
 2566                         inquiryData->ProductRevisionLevel[i]    = ((PUCHAR)pIdentify->FirmwareRevision)[i+1];
 2567                         inquiryData->ProductRevisionLevel[i+1]  = ((PUCHAR)pIdentify->FirmwareRevision)[i];
 2568                 }
 2569                 break;
 2570         default:
 2571                 memcpy(&inquiryData->VendorId, "RR18xx  ", 8);
 2572 #ifdef SUPPORT_ARRAY
 2573                 switch(pVDev->VDeviceType){
 2574                 case VD_RAID_0:
 2575                         if ((pVDev->u.array.pMember[0] && mIsArray(pVDev->u.array.pMember[0])) ||
 2576                                 (pVDev->u.array.pMember[1] && mIsArray(pVDev->u.array.pMember[1])))
 2577                                 memcpy(&inquiryData->ProductId, "RAID 1/0 Array  ", 16);
 2578                         else
 2579                                 memcpy(&inquiryData->ProductId, "RAID 0 Array    ", 16);
 2580                         break;
 2581                 case VD_RAID_1:
 2582                         if ((pVDev->u.array.pMember[0] && mIsArray(pVDev->u.array.pMember[0])) ||
 2583                                 (pVDev->u.array.pMember[1] && mIsArray(pVDev->u.array.pMember[1])))
 2584                                 memcpy(&inquiryData->ProductId, "RAID 0/1 Array  ", 16);
 2585                         else
 2586                                 memcpy(&inquiryData->ProductId, "RAID 1 Array    ", 16);
 2587                         break;
 2588                 case VD_RAID_5:
 2589                         memcpy(&inquiryData->ProductId, "RAID 5 Array    ", 16);
 2590                         break;
 2591                 case VD_JBOD:
 2592                         memcpy(&inquiryData->ProductId, "JBOD Array      ", 16);
 2593                         break;
 2594                 }
 2595 #endif
 2596                 memcpy(&inquiryData->ProductRevisionLevel, "3.00", 4);
 2597                 break;
 2598         }
 2599 }
 2600 
 2601 static void
 2602 hpt_timeout(void *arg)
 2603 {
 2604         PBUS_DMAMAP pmap = (PBUS_DMAMAP)((union ccb *)arg)->ccb_adapter;
 2605         IAL_ADAPTER_T *pAdapter = pmap->pAdapter;
 2606         _VBUS_INST(&pAdapter->VBus)
 2607 
 2608         mtx_assert(&pAdapter->lock, MA_OWNED);
 2609         fResetVBus(_VBUS_P0);
 2610 }
 2611 
 2612 static void 
 2613 hpt_io_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
 2614 {
 2615         PCommand pCmd = (PCommand)arg;
 2616         union ccb *ccb = pCmd->pOrgCommand;
 2617         struct ccb_hdr *ccb_h = &ccb->ccb_h;
 2618         PBUS_DMAMAP pmap = (PBUS_DMAMAP) ccb->ccb_adapter;
 2619         IAL_ADAPTER_T *pAdapter = pmap->pAdapter;
 2620         PVDevice        pVDev = pAdapter->VBus.pVDevice[ccb_h->target_id];
 2621         FPSCAT_GATH psg = pCmd->pSgTable;
 2622         int idx;
 2623         _VBUS_INST(pVDev->pVBus)
 2624 
 2625         HPT_ASSERT(pCmd->cf_physical_sg);
 2626                 
 2627         if (error)
 2628                 panic("busdma error");
 2629                 
 2630         HPT_ASSERT(nsegs<= MAX_SG_DESCRIPTORS);
 2631 
 2632         if (nsegs != 0) {
 2633                 for (idx = 0; idx < nsegs; idx++, psg++) {
 2634                         psg->dSgAddress = (ULONG_PTR)(UCHAR *)segs[idx].ds_addr;
 2635                         psg->wSgSize = segs[idx].ds_len;
 2636                         psg->wSgFlag = (idx == nsegs-1)? SG_FLAG_EOT: 0;
 2637         /*              KdPrint(("psg[%d]:add=%p,size=%x,flag=%x\n", idx, psg->dSgAddress,psg->wSgSize,psg->wSgFlag)); */
 2638                 }
 2639                 /*      psg[-1].wSgFlag = SG_FLAG_EOT; */
 2640                 
 2641                 if (pCmd->cf_data_in) {
 2642                         bus_dmamap_sync(pAdapter->io_dma_parent, pmap->dma_map,
 2643                             BUS_DMASYNC_PREREAD);
 2644                 }
 2645                 else if (pCmd->cf_data_out) {
 2646                         bus_dmamap_sync(pAdapter->io_dma_parent, pmap->dma_map,
 2647                             BUS_DMASYNC_PREWRITE);
 2648                 }
 2649         }
 2650 
 2651         callout_reset(&pmap->timeout, 20 * hz, hpt_timeout, ccb);
 2652         pVDev->pfnSendCommand(_VBUS_P pCmd);
 2653         CheckPendingCall(_VBUS_P0);
 2654 }
 2655 
 2656 
 2657 
 2658 static void HPTLIBAPI
 2659 OsSendCommand(_VBUS_ARG union ccb *ccb)
 2660 {
 2661         PBUS_DMAMAP pmap = (PBUS_DMAMAP)ccb->ccb_adapter;
 2662         IAL_ADAPTER_T *pAdapter = pmap->pAdapter;
 2663         struct ccb_hdr *ccb_h = &ccb->ccb_h;
 2664         struct ccb_scsiio *csio = &ccb->csio;
 2665         PVDevice        pVDev = pAdapter->VBus.pVDevice[ccb_h->target_id];
 2666 
 2667         KdPrintI(("OsSendCommand: ccb %p  cdb %x-%x-%x\n",
 2668                 ccb,
 2669                 *(ULONG *)&ccb->csio.cdb_io.cdb_bytes[0],
 2670                 *(ULONG *)&ccb->csio.cdb_io.cdb_bytes[4],
 2671                 *(ULONG *)&ccb->csio.cdb_io.cdb_bytes[8]
 2672         ));
 2673 
 2674         pAdapter->outstandingCommands++;
 2675 
 2676         if (pVDev == NULL || pVDev->vf_online == 0) {
 2677                 ccb->ccb_h.status = CAM_REQ_INVALID;
 2678                 ccb_done(ccb);
 2679                 goto Command_Complished;
 2680         }
 2681 
 2682         switch(ccb->csio.cdb_io.cdb_bytes[0])
 2683         {
 2684                 case TEST_UNIT_READY:
 2685                 case START_STOP_UNIT:
 2686                 case SYNCHRONIZE_CACHE:
 2687                         /* FALLTHROUGH */
 2688                         ccb->ccb_h.status = CAM_REQ_CMP;
 2689                         break;
 2690 
 2691                 case INQUIRY:
 2692                         ZeroMemory(ccb->csio.data_ptr, ccb->csio.dxfer_len);
 2693                         SetInquiryData((PINQUIRYDATA)ccb->csio.data_ptr, pVDev);
 2694                         ccb_h->status = CAM_REQ_CMP;
 2695                         break;
 2696 
 2697                 case READ_CAPACITY:
 2698                 {               
 2699                         UCHAR *rbuf=csio->data_ptr;
 2700                         unsigned int cap;
 2701 
 2702                         if (pVDev->VDeviceCapacity > 0xfffffffful) {
 2703                                 cap = 0xfffffffful;
 2704                         } else {
 2705                                 cap = pVDev->VDeviceCapacity - 1;
 2706                         }
 2707 
 2708                         rbuf[0] = (UCHAR)(cap>>24);
 2709                         rbuf[1] = (UCHAR)(cap>>16);
 2710                         rbuf[2] = (UCHAR)(cap>>8);
 2711                         rbuf[3] = (UCHAR)cap;
 2712                         /* Claim 512 byte blocks (big-endian). */
 2713                         rbuf[4] = 0;
 2714                         rbuf[5] = 0;
 2715                         rbuf[6] = 2;
 2716                         rbuf[7] = 0;
 2717                         
 2718                         ccb_h->status = CAM_REQ_CMP;
 2719                         break;
 2720                 }
 2721 
 2722                 case 0x9e: /*SERVICE_ACTION_IN*/ 
 2723                 {
 2724                         UCHAR *rbuf = csio->data_ptr;
 2725                         LBA_T cap = pVDev->VDeviceCapacity - 1;
 2726                         
 2727                         rbuf[0] = (UCHAR)(cap>>56);
 2728                         rbuf[1] = (UCHAR)(cap>>48);
 2729                         rbuf[2] = (UCHAR)(cap>>40);
 2730                         rbuf[3] = (UCHAR)(cap>>32);
 2731                         rbuf[4] = (UCHAR)(cap>>24);
 2732                         rbuf[5] = (UCHAR)(cap>>16);
 2733                         rbuf[6] = (UCHAR)(cap>>8);
 2734                         rbuf[7] = (UCHAR)cap;
 2735                         rbuf[8] = 0;
 2736                         rbuf[9] = 0;
 2737                         rbuf[10] = 2;
 2738                         rbuf[11] = 0;
 2739                         
 2740                         ccb_h->status = CAM_REQ_CMP;
 2741                         break;  
 2742                 }
 2743 
 2744                 case READ_6:
 2745                 case WRITE_6:
 2746                 case READ_10:
 2747                 case WRITE_10:
 2748                 case 0x88: /* READ_16 */
 2749                 case 0x8a: /* WRITE_16 */
 2750                 case 0x13:
 2751                 case 0x2f:
 2752                 {
 2753                         UCHAR Cdb[16];
 2754                         UCHAR CdbLength;
 2755                         _VBUS_INST(pVDev->pVBus)
 2756                         PCommand pCmd = AllocateCommand(_VBUS_P0);
 2757                         int error;
 2758                         HPT_ASSERT(pCmd);
 2759 
 2760                         CdbLength = csio->cdb_len;
 2761                         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0)
 2762                         {
 2763                                 if ((ccb->ccb_h.flags & CAM_CDB_PHYS) == 0)
 2764                                 {
 2765                                         bcopy(csio->cdb_io.cdb_ptr, Cdb, CdbLength);
 2766                                 }
 2767                                 else
 2768                                 {
 2769                                         KdPrintE(("ERROR!!!\n"));
 2770                                         ccb->ccb_h.status = CAM_REQ_INVALID;
 2771                                         break;
 2772                                 }
 2773                         }
 2774                         else
 2775                         {
 2776                                 bcopy(csio->cdb_io.cdb_bytes, Cdb, CdbLength);
 2777                         }
 2778 
 2779                         pCmd->pOrgCommand = ccb;
 2780                         pCmd->pVDevice = pVDev;
 2781                         pCmd->pfnCompletion = fOsCommandDone;
 2782                         pCmd->pfnBuildSgl = fOsBuildSgl;
 2783                         pCmd->pSgTable = pmap->psg;
 2784 
 2785                         switch (Cdb[0])
 2786                         {
 2787                                 case READ_6:
 2788                                 case WRITE_6:
 2789                                 case 0x13:
 2790                                         pCmd->uCmd.Ide.Lba =  ((ULONG)Cdb[1] << 16) | ((ULONG)Cdb[2] << 8) | (ULONG)Cdb[3];
 2791                                         pCmd->uCmd.Ide.nSectors = (USHORT) Cdb[4];
 2792                                         break;
 2793 
 2794                                 case 0x88: /* READ_16 */
 2795                                 case 0x8a: /* WRITE_16 */
 2796                                         pCmd->uCmd.Ide.Lba = 
 2797                                                 (HPT_U64)Cdb[2] << 56 |
 2798                                                 (HPT_U64)Cdb[3] << 48 |
 2799                                                 (HPT_U64)Cdb[4] << 40 |
 2800                                                 (HPT_U64)Cdb[5] << 32 |
 2801                                                 (HPT_U64)Cdb[6] << 24 |
 2802                                                 (HPT_U64)Cdb[7] << 16 |
 2803                                                 (HPT_U64)Cdb[8] << 8 |
 2804                                                 (HPT_U64)Cdb[9];
 2805                                         pCmd->uCmd.Ide.nSectors = (USHORT)Cdb[12] << 8 | (USHORT)Cdb[13];
 2806                                         break;
 2807                                         
 2808                                 default:
 2809                                         pCmd->uCmd.Ide.Lba = (ULONG)Cdb[5] | ((ULONG)Cdb[4] << 8) | ((ULONG)Cdb[3] << 16) | ((ULONG)Cdb[2] << 24);
 2810                                         pCmd->uCmd.Ide.nSectors = (USHORT) Cdb[8] | ((USHORT)Cdb[7]<<8);
 2811                                         break;
 2812                         }
 2813 
 2814                         switch (Cdb[0])
 2815                         {
 2816                                 case READ_6:
 2817                                 case READ_10:
 2818                                 case 0x88: /* READ_16 */
 2819                                         pCmd->uCmd.Ide.Command = IDE_COMMAND_READ;
 2820                                         pCmd->cf_data_in = 1;
 2821                                         break;
 2822 
 2823                                 case WRITE_6:
 2824                                 case WRITE_10:
 2825                                 case 0x8a: /* WRITE_16 */
 2826                                         pCmd->uCmd.Ide.Command = IDE_COMMAND_WRITE;
 2827                                         pCmd->cf_data_out = 1;
 2828                                         break;
 2829                                 case 0x13:
 2830                                 case 0x2f:
 2831                                         pCmd->uCmd.Ide.Command = IDE_COMMAND_VERIFY;
 2832                                         break;
 2833                         }
 2834 /*///////////////////////// */
 2835                         pCmd->cf_physical_sg = 1;
 2836                         error = bus_dmamap_load_ccb(pAdapter->io_dma_parent, 
 2837                                                     pmap->dma_map, 
 2838                                                     ccb,
 2839                                                     hpt_io_dmamap_callback,
 2840                                                     pCmd, BUS_DMA_WAITOK
 2841                                                     );
 2842                         KdPrint(("bus_dmamap_load return %d\n", error));
 2843                         if (error && error!=EINPROGRESS) {
 2844                                 hpt_printk(("bus_dmamap_load error %d\n", error));
 2845                                 FreeCommand(_VBUS_P pCmd);
 2846                                 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
 2847                                 dmamap_put(pmap);
 2848                                 pAdapter->outstandingCommands--;
 2849                                 if (pAdapter->outstandingCommands == 0)
 2850                                         wakeup(pAdapter);
 2851                                 xpt_done(ccb);
 2852                         }
 2853                         goto Command_Complished;
 2854                 }
 2855 
 2856                 default:
 2857                         ccb->ccb_h.status = CAM_REQ_INVALID;
 2858                         break;
 2859         }
 2860         ccb_done(ccb);
 2861 Command_Complished:
 2862         CheckPendingCall(_VBUS_P0);
 2863         return;
 2864 }
 2865 
 2866 static void HPTLIBAPI 
 2867 fOsCommandDone(_VBUS_ARG PCommand pCmd)
 2868 {
 2869         union ccb *ccb = pCmd->pOrgCommand;
 2870         PBUS_DMAMAP pmap = (PBUS_DMAMAP)ccb->ccb_adapter; 
 2871         IAL_ADAPTER_T *pAdapter = pmap->pAdapter;
 2872 
 2873         KdPrint(("fOsCommandDone(pcmd=%p, result=%d)\n", pCmd, pCmd->Result));
 2874 
 2875         callout_stop(&pmap->timeout);
 2876         
 2877         switch(pCmd->Result) {
 2878         case RETURN_SUCCESS:
 2879                 ccb->ccb_h.status = CAM_REQ_CMP;
 2880                 break;
 2881         case RETURN_BAD_DEVICE:
 2882                 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
 2883                 break;
 2884         case RETURN_DEVICE_BUSY:
 2885                 ccb->ccb_h.status = CAM_BUSY;
 2886                 break;
 2887         case RETURN_INVALID_REQUEST:
 2888                 ccb->ccb_h.status = CAM_REQ_INVALID;
 2889                 break;
 2890         case RETURN_SELECTION_TIMEOUT:
 2891                 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
 2892                 break;
 2893         case RETURN_RETRY:
 2894                 ccb->ccb_h.status = CAM_BUSY;
 2895                 break;
 2896         default:
 2897                 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR;
 2898                 break;
 2899         }
 2900 
 2901         if (pCmd->cf_data_in) {
 2902                 bus_dmamap_sync(pAdapter->io_dma_parent, pmap->dma_map, BUS_DMASYNC_POSTREAD);
 2903         }
 2904         else if (pCmd->cf_data_out) {
 2905                 bus_dmamap_sync(pAdapter->io_dma_parent, pmap->dma_map, BUS_DMASYNC_POSTWRITE);
 2906         }
 2907         
 2908         bus_dmamap_unload(pAdapter->io_dma_parent, pmap->dma_map);
 2909 
 2910         FreeCommand(_VBUS_P pCmd);
 2911         ccb_done(ccb);
 2912 }
 2913 
 2914 int
 2915 hpt_queue_dpc(HPT_DPC dpc, IAL_ADAPTER_T * pAdapter, void *arg, UCHAR flags)
 2916 {
 2917         int p;
 2918 
 2919         mtx_lock(&DpcQueue_Lock);
 2920         p = (DpcQueue_Last + 1) % MAX_DPC;
 2921         if (p==DpcQueue_First) {
 2922                 KdPrint(("DPC Queue full!\n"));
 2923                 mtx_unlock(&DpcQueue_Lock);
 2924                 return -1;
 2925         }
 2926 
 2927         DpcQueue[DpcQueue_Last].dpc = dpc;
 2928         DpcQueue[DpcQueue_Last].pAdapter = pAdapter;
 2929         DpcQueue[DpcQueue_Last].arg = arg;
 2930         DpcQueue[DpcQueue_Last].flags = flags;
 2931         DpcQueue_Last = p;
 2932         mtx_unlock(&DpcQueue_Lock);
 2933 
 2934         return 0;
 2935 }
 2936 
 2937 #ifdef _RAID5N_
 2938 /* 
 2939  * Allocate memory above 16M, otherwise we may eat all low memory for ISA devices.
 2940  * How about the memory for 5081 request/response array and PRD table?
 2941  */
 2942 void
 2943 *os_alloc_page(_VBUS_ARG0)
 2944 { 
 2945         return (void *)contigmalloc(0x1000, M_DEVBUF, M_NOWAIT, 0x1000000, 0xffffffff, PAGE_SIZE, 0ul);
 2946 }
 2947 
 2948 void
 2949 *os_alloc_dma_page(_VBUS_ARG0)
 2950 {
 2951         return (void *)contigmalloc(0x1000, M_DEVBUF, M_NOWAIT, 0x1000000, 0xffffffff, PAGE_SIZE, 0ul);
 2952 }
 2953 
 2954 void
 2955 os_free_page(_VBUS_ARG void *p) 
 2956 { 
 2957         contigfree(p, 0x1000, M_DEVBUF); 
 2958 }
 2959 
 2960 void
 2961 os_free_dma_page(_VBUS_ARG void *p) 
 2962 { 
 2963         contigfree(p, 0x1000, M_DEVBUF); 
 2964 }
 2965 
 2966 void
 2967 DoXor1(ULONG *p0, ULONG *p1, ULONG *p2, UINT nBytes)
 2968 {
 2969         UINT i;
 2970         for (i = 0; i < nBytes / 4; i++) *p0++ = *p1++ ^ *p2++;
 2971 }
 2972 
 2973 void
 2974 DoXor2(ULONG *p0, ULONG *p2, UINT nBytes)
 2975 {
 2976         UINT i;
 2977         for (i = 0; i < nBytes / 4; i++) *p0++ ^= *p2++;
 2978 }
 2979 #endif

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