xref: /freebsd/sys/dev/hptmv/entry.c (revision a35d88931c87cfe6bd38f01d7bad22140b3b38f3)
1 /*
2  * Copyright (c) 2003-2004 HighPoint Technologies, Inc.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 #include <sys/param.h>
29 #include <sys/systm.h>
30 #include <sys/kernel.h>
31 #include <sys/bus.h>
32 #include <sys/malloc.h>
33 #include <sys/resource.h>
34 #include <sys/time.h>
35 #include <sys/callout.h>
36 #include <sys/signalvar.h>
37 #include <sys/eventhandler.h>
38 #include <sys/proc.h>
39 #include <sys/kthread.h>
40 
41 #include <dev/pci/pcireg.h>
42 #include <dev/pci/pcivar.h>
43 
44 #include <dev/hptmv/global.h>
45 #include <dev/hptmv/hptintf.h>
46 #include <dev/hptmv/osbsd.h>
47 #include <contrib/dev/hptmv/access601.h>
48 
49 #ifdef DEBUG
50 #ifdef DEBUG_LEVEL
51 int hpt_dbg_level = DEBUG_LEVEL;
52 #else
53 int hpt_dbg_level = 0;
54 #endif
55 #endif
56 
57 #define MV_ERROR printf
58 /*
59  * CAM SIM entry points
60  */
61 static int	hpt_probe(device_t dev);
62 static int	hpt_attach(device_t dev);
63 static int	hpt_detach(device_t dev);
64 static int	hpt_shutdown(device_t dev);
65 static void	hpt_poll(struct cam_sim *sim);
66 static void	hpt_intr(void *arg);
67 static void	hpt_action(struct cam_sim *sim, union ccb *ccb);
68 static void	SetInquiryData(PINQUIRYDATA inquiryData, PVDevice pVDev);
69 static void	HPTLIBAPI OsSendCommand (_VBUS_ARG union ccb * ccb);
70 static void	HPTLIBAPI fOsCommandDone(_VBUS_ARG PCommand pCmd);
71 static void	ccb_done(union ccb *ccb);
72 static void	hpt_queue_ccb(union ccb **ccb_Q, union ccb *ccb);
73 static void	hpt_free_ccb(union ccb **ccb_Q, union ccb *ccb);
74 static MV_SATA_CHANNEL gMvSataChannels[MAX_VBUS][MV_SATA_CHANNELS_NUM];
75 static void	hptmv_free_edma_queues(IAL_ADAPTER_T *pAdapter);
76 static void	hptmv_free_channel(IAL_ADAPTER_T *pAdapter, MV_U8 channelNum);
77 static void	handleEdmaError(_VBUS_ARG PCommand pCmd);
78 static int	hptmv_init_channel(IAL_ADAPTER_T *pAdapter, MV_U8 channelNum);
79 static int	fResetActiveCommands(PVBus _vbus_p);
80 static void	fRegisterVdevice(IAL_ADAPTER_T *pAdapter);
81 static int	hptmv_allocate_edma_queues(IAL_ADAPTER_T *pAdapter);
82 static void	hptmv_handle_event_disconnect(void *data);
83 static void	hptmv_handle_event_connect(void *data);
84 static int	start_channel(IAL_ADAPTER_T *pAdapter, MV_U8 channelNum);
85 static void	init_vdev_params(IAL_ADAPTER_T *pAdapter, MV_U8 channel);
86 static int	hptmv_parse_identify_results(MV_SATA_CHANNEL *pMvSataChannel);
87 static void	hpt_async(void *callback_arg, u_int32_t code,
88     struct cam_path *path, void *arg);
89 static int HPTLIBAPI fOsBuildSgl(_VBUS_ARG PCommand pCmd, FPSCAT_GATH pSg,
90     int logical);
91 static MV_BOOLEAN CommandCompletionCB(MV_SATA_ADAPTER *pMvSataAdapter,
92     MV_U8 channelNum, MV_COMPLETION_TYPE comp_type, MV_VOID_PTR commandId,
93     MV_U16 responseFlags, MV_U32 timeStamp,
94     MV_STORAGE_DEVICE_REGISTERS *registerStruct);
95 static MV_BOOLEAN hptmv_event_notify(MV_SATA_ADAPTER *pMvSataAdapter,
96     MV_EVENT_TYPE eventType, MV_U32 param1, MV_U32 param2);
97 
98 #define ccb_ccb_ptr spriv_ptr0
99 #define ccb_adapter ccb_h.spriv_ptr1
100 
101 IAL_ADAPTER_T *gIal_Adapter = 0;
102 IAL_ADAPTER_T *pCurAdapter = 0;
103 
104 typedef struct st_HPT_DPC {
105 	IAL_ADAPTER_T *pAdapter;
106 	void (*dpc)(IAL_ADAPTER_T *, void *, UCHAR);
107 	void *arg;
108 	UCHAR flags;
109 } ST_HPT_DPC;
110 
111 #define MAX_DPC 16
112 UCHAR DPC_Request_Nums = 0;
113 static ST_HPT_DPC DpcQueue[MAX_DPC];
114 static int DpcQueue_First=0;
115 static int DpcQueue_Last = 0;
116 
117 static device_method_t driver_methods[] = {
118 	/* Device interface */
119 	DEVMETHOD(device_probe,		hpt_probe),
120 	DEVMETHOD(device_attach,	hpt_attach),
121 	DEVMETHOD(device_detach,	hpt_detach),
122 	{ 0, 0 }
123 };
124 
125 static driver_t hpt_pci_driver = {
126 	__str(PROC_DIR_NAME),
127 	driver_methods,
128 	sizeof(IAL_ADAPTER_T)
129 };
130 
131 static devclass_t	hpt_devclass;
132 
133 DRIVER_MODULE(PROC_DIR_NAME, pci, hpt_pci_driver, hpt_devclass, 0, 0);
134 MODULE_DEPEND(PROC_DIR_NAME, cam, 1, 1, 1);
135 
136 intrmask_t
137 lock_driver()
138 {
139 	intrmask_t spl = splcam();
140 	return spl;
141 }
142 
143 void
144 unlock_driver(intrmask_t spl)
145 {
146 	splx(spl);
147 }
148 
149 /*******************************************************************************
150  *	Name:	hptmv_free_channel
151  *
152  *	Description:	free allocated queues for the given channel
153  *
154  *	Parameters:    	pMvSataAdapter - pointer to the RR182x controler this
155  * 					channel connected to.
156  *			channelNum - channel number.
157  *
158  ******************************************************************************/
159 static void
160 hptmv_free_channel(IAL_ADAPTER_T *pAdapter, MV_U8 channelNum)
161 {
162 	PVDevice pVDev = &(pAdapter->VDevices[channelNum]);
163 	_VBUS_INST(&pAdapter->VBus);
164 
165 	HPT_ASSERT(channelNum < MV_SATA_CHANNELS_NUM);
166 
167 	pAdapter->mvSataAdapter.sataChannel[channelNum] = NULL;
168 
169 	if(pVDev->vf_online)
170 	{
171 		pVDev->u.disk.df_on_line = 0;
172 		pVDev->vf_online = 0;
173 		if (pVDev->pfnDeviceFailed) {
174 			CallWhenIdle(_VBUS_P (DPC_PROC)pVDev->pfnDeviceFailed,
175 				     pVDev);
176 		}
177 	}
178 }
179 
180 int MvSataResetChannel(MV_SATA_ADAPTER *pMvSataAdapter, MV_U8 channel);
181 
182 static void
183 handleEdmaError(_VBUS_ARG PCommand pCmd)
184 {
185 	PDevice pDevice = &pCmd->pVDevice->u.disk;
186 	MV_SATA_ADAPTER * pSataAdapter = pDevice->mv->mvSataAdapter;
187 
188 	MV_ERROR("Reset channel\n");
189 
190 	MvSataResetChannel(pSataAdapter, pDevice->mv->channelNumber);
191 	/*now no other cmds on this channel*/
192 	if (!pDevice->df_on_line) {
193 		KdPrint(("Device is offline"));
194 		pCmd->Result = RETURN_BAD_DEVICE;
195 		CallAfterReturn(_VBUS_P (DPC_PROC)pCmd->pfnCompletion, pCmd);
196 		return;
197 	}
198 
199 	if (pCmd->RetryCount++>5) {
200 		pDevice->df_on_line = 0;
201 		pCmd->pVDevice->vf_online = 0;
202 		if (pCmd->pVDevice->pfnDeviceFailed)
203 			CallWhenIdle(_VBUS_P
204 			    (DPC_PROC)pCmd->pVDevice->pfnDeviceFailed,
205 			    pCmd->pVDevice);
206 		fNotifyGUI(ET_DEVICE_REMOVED, Map2pVDevice(pDevice));
207 		pCmd->Result = RETURN_IDE_ERROR;
208 		CallAfterReturn(_VBUS_P (DPC_PROC)pCmd->pfnCompletion, pCmd);
209 		return;
210 	}
211 	/* retry the command */
212 	fDeviceSendCommand(_VBUS_P pCmd);
213 }
214 
215 /****************************************************************
216  *	Name:	hptmv_init_channel
217  *
218  *	Description:	allocate request and response queues for the EDMA of
219  *                      the given channel and sets other fields.
220  *	Parameters:
221  *		pAdapter - pointer to the emulated adapter data structure
222  *		channelNum - channel number.
223  *	Return:	0 on success, otherwise on failure
224  ****************************************************************/
225 static int
226 hptmv_init_channel(IAL_ADAPTER_T *pAdapter, MV_U8 channelNum)
227 {
228 	MV_SATA_CHANNEL *pMvSataChannel;
229 	dma_addr_t    req_dma_addr;
230 	dma_addr_t    rsp_dma_addr;
231 
232 	if (channelNum >= MV_SATA_CHANNELS_NUM)
233 	{
234 		MV_ERROR("RR182x[%d]: Bad channelNum=%d",
235 				 pAdapter->mvSataAdapter.adapterId, channelNum);
236 		return -1;
237 	}
238 
239 	pMvSataChannel =
240 	    &gMvSataChannels[pAdapter->mvSataAdapter.adapterId][channelNum];
241 	pAdapter->mvSataAdapter.sataChannel[channelNum] = pMvSataChannel;
242 	pMvSataChannel->channelNumber = channelNum;
243 	pMvSataChannel->lba48Address = MV_FALSE;
244 	pMvSataChannel->maxReadTransfer = MV_FALSE;
245 
246 	pMvSataChannel->requestQueue =
247 	    (struct mvDmaRequestQueueEntry *)
248 	    (pAdapter->requestsArrayBaseAlignedAddr +
249 	    (channelNum * MV_EDMA_REQUEST_QUEUE_SIZE));
250 	req_dma_addr = pAdapter->requestsArrayBaseDmaAlignedAddr +
251 	    (channelNum * MV_EDMA_REQUEST_QUEUE_SIZE);
252 
253 
254 	KdPrint(("requestQueue addr is 0x%lX", (u_long)req_dma_addr));
255 
256 	/* check the 1K alignment of the request queue*/
257 	if (req_dma_addr & 0x3ff)
258 	{
259 		MV_ERROR("RR182x[%d]: request queue allocated not 1 K aligned,"
260 			 " dma_addr=%lx channel=%d\n",
261 			 pAdapter->mvSataAdapter.adapterId,(u_long)req_dma_addr,
262 			 channelNum);
263 		return -1;
264 	}
265 	pMvSataChannel->requestQueuePciLowAddress = req_dma_addr;
266 	pMvSataChannel->requestQueuePciHiAddress = 0;
267 	KdPrint(("RR182x[%d,%d]: request queue allocated: 0x%p",
268 		pAdapter->mvSataAdapter.adapterId, channelNum,
269 		pMvSataChannel->requestQueue));
270 	pMvSataChannel->responseQueue =
271 	    (struct mvDmaResponseQueueEntry *)
272 	    (pAdapter->responsesArrayBaseAlignedAddr +
273 	    (channelNum * MV_EDMA_RESPONSE_QUEUE_SIZE));
274 	rsp_dma_addr = pAdapter->responsesArrayBaseDmaAlignedAddr +
275 	    (channelNum * MV_EDMA_RESPONSE_QUEUE_SIZE);
276 
277 	/* check the 256 alignment of the response queue*/
278 	if (rsp_dma_addr & 0xff)
279 	{
280 		MV_ERROR("RR182x[%d,%d]: response queue allocated not 256 byte"
281 			 " aligned, dma_addr=%lx\n",
282 			 pAdapter->mvSataAdapter.adapterId, channelNum,
283 			 (u_long)rsp_dma_addr);
284 		return -1;
285 	}
286 	pMvSataChannel->responseQueuePciLowAddress = rsp_dma_addr;
287 	pMvSataChannel->responseQueuePciHiAddress = 0;
288 	KdPrint(("RR182x[%d,%d]: response queue allocated: 0x%p",
289 		pAdapter->mvSataAdapter.adapterId, channelNum,
290 		pMvSataChannel->responseQueue));
291 
292 	pAdapter->mvChannel[channelNum].online = MV_TRUE;
293 	return 0;
294 }
295 
296 /******************************************************************************
297  *	Name: hptmv_parse_identify_results
298  *
299  *	Description:	this functions parses the identify command results,
300  *			checks that the connected deives can be accesed by
301  *			RR182x EDMA, and updates the channel stucture
302  *			accordingly.
303  *	Parameters:     pMvSataChannel, pointer to the channel data structure.
304  *
305  *	Returns:       	=0 ->success, < 0 ->failure.
306  *
307  ******************************************************************************/
308 static int
309 hptmv_parse_identify_results(MV_SATA_CHANNEL *pMvSataChannel)
310 {
311 	MV_U16  *iden = pMvSataChannel->identifyDevice;
312 
313 	/*LBA addressing*/
314 	if (! (iden[IDEN_CAPACITY_1_OFFSET] & 0x200)) {
315 		KdPrint(("IAL Error in IDENTIFY info: LBA not supported\n"));
316 		return -1;
317 	} else {
318 		KdPrint(("%25s - %s\n", "Capabilities", "LBA supported"));
319 	}
320 	/*DMA support*/
321 	if (! (iden[IDEN_CAPACITY_1_OFFSET] & 0x100)) {
322 		KdPrint(("IAL Error in IDENTIFY info: DMA not supported\n"));
323 		return -1;
324 	} else {
325 		KdPrint(("%25s - %s\n", "Capabilities", "DMA supported"));
326 	}
327 	/* PIO */
328 	if ((iden[IDEN_VALID] & 2) == 0) {
329 		KdPrint(("IAL Error in IDENTIFY info: not able to find PIO "
330 			"mode\n"));
331 		return -1;
332 	}
333 	KdPrint(("%25s - 0x%02x\n", "PIO modes supported",
334 			  iden[IDEN_PIO_MODE_SPPORTED] & 0xff));
335 
336 	/*UDMA*/
337 	if ((iden[IDEN_VALID] & 4) == 0) {
338 		KdPrint(("IAL Error in IDENTIFY info: not able to find UDMA "
339 			"mode\n"));
340 		return -1;
341 	}
342 
343 	/* 48 bit address */
344 	if ((iden[IDEN_SUPPORTED_COMMANDS2] & 0x400)) {
345 		KdPrint(("%25s - %s\n", "LBA48 addressing", "supported"));
346 		pMvSataChannel->lba48Address = MV_TRUE;
347 	} else {
348 		KdPrint(("%25s - %s\n", "LBA48 addressing", "Not supported"));
349 		pMvSataChannel->lba48Address = MV_FALSE;
350 	}
351 	return 0;
352 }
353 
354 static void
355 init_vdev_params(IAL_ADAPTER_T *pAdapter, MV_U8 channel)
356 {
357 	PVDevice pVDev;
358 	MV_SATA_CHANNEL *pMvSataChannel;
359 	MV_U16_PTR IdentifyData;
360 
361 	pVDev = &pAdapter->VDevices[channel];
362 	pMvSataChannel = pAdapter->mvSataAdapter.sataChannel[channel];
363 	pMvSataChannel->outstandingCommands = 0;
364 	IdentifyData = pMvSataChannel->identifyDevice;
365 
366 	pVDev->u.disk.mv         = pMvSataChannel;
367 	pVDev->u.disk.df_on_line = 1;
368 	pVDev->u.disk.pVBus      = &pAdapter->VBus;
369 	pVDev->pVBus             = &pAdapter->VBus;
370 
371 #ifdef SUPPORT_48BIT_LBA
372 	if (pMvSataChannel->lba48Address == MV_TRUE)
373 		pVDev->u.disk.dDeRealCapacity =
374 		    ((IdentifyData[101]<<16) | IdentifyData[100]) - 1;
375 	else
376 #endif
377 	if(IdentifyData[53] & 1) {
378 		pVDev->u.disk.dDeRealCapacity =
379 		    (((IdentifyData[58]<<16 | IdentifyData[57]) <
380 		    (IdentifyData[61]<<16 | IdentifyData[60])) ?
381 		    (IdentifyData[61]<<16 | IdentifyData[60]) :
382 		    (IdentifyData[58]<<16 | IdentifyData[57])) - 1;
383 	} else
384 		pVDev->u.disk.dDeRealCapacity =
385 		    (IdentifyData[61]<<16 | IdentifyData[60]) - 1;
386 
387 	pVDev->u.disk.bDeUsable_Mode = pVDev->u.disk.bDeModeSetting =
388 	    pAdapter->mvChannel[channel].maxPioModeSupported -
389 	    MV_ATA_TRANSFER_PIO_0;
390 
391 	if (pAdapter->mvChannel[channel].maxUltraDmaModeSupported!=0xFF) {
392 		pVDev->u.disk.bDeUsable_Mode = pVDev->u.disk.bDeModeSetting =
393 		    pAdapter->mvChannel[channel].maxUltraDmaModeSupported -
394 		    MV_ATA_TRANSFER_UDMA_0 + 8;
395 	}
396 }
397 
398 static void
399 device_change(IAL_ADAPTER_T *pAdapter , MV_U8 channelIndex, int plugged)
400 {
401 	PVDevice pVDev;
402 	MV_SATA_ADAPTER *pMvSataAdapter;
403 	MV_SATA_CHANNEL *pMvSataChannel;
404 	PVBus _vbus_p;
405 
406 	pMvSataAdapter = &pAdapter->mvSataAdapter;
407 	pMvSataChannel = pMvSataAdapter->sataChannel[channelIndex];
408 	_vbus_p  = &pAdapter->VBus;
409 
410 	if (!pMvSataChannel)
411 		return;
412 
413 	if (plugged) {
414 		pVDev = &(pAdapter->VDevices[channelIndex]);
415 		init_vdev_params(pAdapter, channelIndex);
416 
417 		pVDev->VDeviceType = pVDev->u.disk.df_atapi ? VD_ATAPI :
418 		    pVDev->u.disk.df_removable_drive ? VD_REMOVABLE :
419 		    VD_SINGLE_DISK;
420 
421 		pVDev->VDeviceCapacity = pVDev->u.disk.dDeRealCapacity;
422 		pVDev->pfnSendCommand = pfnSendCommand[pVDev->VDeviceType];
423 		pVDev->pfnDeviceFailed = pfnDeviceFailed[pVDev->VDeviceType];
424 		pVDev->vf_online = 1;
425 
426 #ifdef SUPPORT_ARRAY
427 		if(pVDev->pParent) {
428 			int iMember;
429 
430 			for (iMember = 0;
431 			     iMember < pVDev->pParent->u.array.bArnMember;
432 			     iMember++)
433 				if ((PVDevice)pVDev->pParent->u.array.pMember[iMember] == pVDev)
434 					pVDev->pParent->u.array.pMember[iMember] = NULL;
435 			pVDev->pParent = NULL;
436 		}
437 #endif
438 		fNotifyGUI(ET_DEVICE_PLUGGED,pVDev);
439 		fCheckBootable(pVDev);
440 		RegisterVDevice(pVDev);
441 
442 #ifndef FOR_DEMO
443 		if (pAdapter->beeping) {
444 			pAdapter->beeping = 0;
445 			BeepOff(pAdapter->mvSataAdapter.adapterIoBaseAddress);
446 		}
447 #endif
448 
449 	} else {
450 		pVDev  = &(pAdapter->VDevices[channelIndex]);
451 		pVDev->u.disk.df_on_line = 0;
452 		pVDev->vf_online = 0;
453 		if (pVDev->pfnDeviceFailed) {
454 			_VBUS_INST(&pAdapter->VBus)
455 			CallWhenIdle(_VBUS_P (DPC_PROC)pVDev->pfnDeviceFailed,
456 				     pVDev);
457 		}
458 		fNotifyGUI(ET_DEVICE_REMOVED,pVDev);
459 
460 #ifndef FOR_DEMO
461 		if (pAdapter->ver_601==2 && !pAdapter->beeping) {
462 			pAdapter->beeping = 1;
463 			BeepOn(pAdapter->mvSataAdapter.adapterIoBaseAddress);
464 			set_fail_led(&pAdapter->mvSataAdapter, channelIndex, 1);
465 		}
466 #endif
467 
468 	}
469 }
470 
471 static int
472 start_channel(IAL_ADAPTER_T *pAdapter, MV_U8 channelNum)
473 {
474 	MV_SATA_ADAPTER *pMvSataAdapter;
475 	MV_SATA_CHANNEL *pMvSataChannel;
476 	MV_CHANNEL *pChannelInfo;
477 	MV_U32 udmaMode,pioMode;
478 
479 	pMvSataAdapter = &pAdapter->mvSataAdapter;
480 	pMvSataChannel = pMvSataAdapter->sataChannel[channelNum];
481 	pChannelInfo = &(pAdapter->mvChannel[channelNum]);
482 
483 	KdPrint(("RR182x [%d]: start channel (%d)", pMvSataAdapter->adapterId,
484 		channelNum));
485 
486 
487 	/* Software reset channel */
488 	if (mvStorageDevATASoftResetDevice(pMvSataAdapter, channelNum) ==
489 	    MV_FALSE) {
490 		MV_ERROR("RR182x [%d,%d]: failed to perform Software reset\n",
491 			 pMvSataAdapter->adapterId, channelNum);
492 		return -1;
493 	}
494 
495 	/* Hardware reset channel */
496 	if (mvSataChannelHardReset(pMvSataAdapter, channelNum) == MV_FALSE) {
497 		/*
498 		 * If failed, try again - this is when trying to hardreset a
499 		 * channel when drive is just spinning up
500 		 */
501 		StallExec(5000000); /* wait 5 sec before trying again */
502 		if (mvSataChannelHardReset(pMvSataAdapter, channelNum) ==
503 		    MV_FALSE) {
504 			MV_ERROR("RR182x [%d,%d]: failed to perform Hard "
505 				 "reset\n", pMvSataAdapter->adapterId,
506 				 channelNum);
507 			return -1;
508 		}
509 	}
510 
511 	/* identify device*/
512 	if (mvStorageDevATAIdentifyDevice(pMvSataAdapter, channelNum) ==
513 	    MV_FALSE) {
514 		MV_ERROR("RR182x [%d,%d]: failed to perform ATA Identify "
515 			 "command\n", pMvSataAdapter->adapterId, channelNum);
516 		return -1;
517 	}
518 	if (hptmv_parse_identify_results(pMvSataChannel)) {
519 		MV_ERROR("RR182x [%d,%d]: Error in parsing ATA Identify "
520 			 "message\n", pMvSataAdapter->adapterId, channelNum);
521 		return -1;
522 	}
523 
524 	/* mvStorageDevATASetFeatures */
525 	/* Disable 8 bit PIO in case CFA enabled */
526 	if (pMvSataChannel->identifyDevice[86] & 4) {
527 		KdPrint(("RR182x [%d]: Disable 8 bit PIO (CFA enabled) \n",
528 			pMvSataAdapter->adapterId));
529 		if (mvStorageDevATASetFeatures(pMvSataAdapter, channelNum,
530 		    MV_ATA_SET_FEATURES_DISABLE_8_BIT_PIO, 0, 0, 0, 0) ==
531 		    MV_FALSE) {
532 			MV_ERROR("RR182x [%d]: channel %d: "
533 				 "mvStorageDevATASetFeatures failed\n",
534 				 pMvSataAdapter->adapterId, channelNum);
535 			return -1;
536 		}
537 	}
538 
539 #ifdef ENABLE_WRITE_CACHE
540 	/* Write cache */
541 	if (pMvSataChannel->identifyDevice[82] & 0x20) {
542 		if (!(pMvSataChannel->identifyDevice[85] & 0x20)) {
543 			/* if not enabled by default */
544 			if (mvStorageDevATASetFeatures(pMvSataAdapter,
545 			    channelNum, MV_ATA_SET_FEATURES_ENABLE_WCACHE, 0,
546 			    0, 0, 0) == MV_FALSE) {
547 				MV_ERROR("RR182x [%d]: channel %d: "
548 					 "mvStorageDevATASetFeatures failed\n",
549 					 pMvSataAdapter->adapterId, channelNum);
550 				return -1;
551 			}
552 		}
553 		KdPrint(("RR182x [%d]: channel %d, write cache enabled\n",
554 			pMvSataAdapter->adapterId, channelNum));
555 	} else {
556 		KdPrint(("RR182x [%d]: channel %d, write cache not supported\n",
557 			pMvSataAdapter->adapterId, channelNum));
558 	}
559 #else
560 	/* disable write cache */
561 	if (pMvSataChannel->identifyDevice[85] & 0x20) {
562 		KdPrint(("RR182x [%d]: channel =%d, disable write cache\n",
563 			pMvSataAdapter->adapterId, channelNum));
564 		if (mvStorageDevATASetFeatures(pMvSataAdapter, channelNum,
565 		    MV_ATA_SET_FEATURES_DISABLE_WCACHE, 0, 0, 0, 0) ==
566 		    MV_FALSE) {
567 			MV_ERROR("RR182x [%d]: channel %d: "
568 				 "mvStorageDevATASetFeatures failed\n",
569 				 pMvSataAdapter->adapterId, channelNum);
570 			return -1;
571 		}
572 	}
573 	KdPrint(("RR182x [%d]: channel=%d, write cache disabled\n",
574 		pMvSataAdapter->adapterId, channelNum));
575 #endif
576 
577 	/* Set transfer mode */
578 	KdPrint(("RR182x [%d] Set transfer mode XFER_PIO_SLOW\n",
579 		pMvSataAdapter->adapterId));
580 	if (mvStorageDevATASetFeatures(pMvSataAdapter, channelNum,
581 	    MV_ATA_SET_FEATURES_TRANSFER, MV_ATA_TRANSFER_PIO_SLOW, 0, 0, 0) ==
582 	    MV_FALSE) {
583 		MV_ERROR("RR182x [%d] channel %d: Set Features failed\n",
584 			 pMvSataAdapter->adapterId, channelNum);
585 		return -1;
586 	}
587 
588 	if (pMvSataChannel->identifyDevice[IDEN_PIO_MODE_SPPORTED] & 1) {
589 		pioMode = MV_ATA_TRANSFER_PIO_4;
590 	} else if (pMvSataChannel->identifyDevice[IDEN_PIO_MODE_SPPORTED] & 2) {
591 		pioMode = MV_ATA_TRANSFER_PIO_3;
592 	} else {
593 		MV_ERROR("IAL Error in IDENTIFY info: PIO modes 3 and 4 not "
594 			 "supported\n");
595 		pioMode = MV_ATA_TRANSFER_PIO_SLOW;
596 	}
597 
598 	KdPrint(("RR182x [%d] Set transfer mode XFER_PIO_4\n",
599 		pMvSataAdapter->adapterId));
600 	pAdapter->mvChannel[channelNum].maxPioModeSupported = pioMode;
601 	if (mvStorageDevATASetFeatures(pMvSataAdapter, channelNum,
602 	    MV_ATA_SET_FEATURES_TRANSFER, pioMode, 0, 0, 0) == MV_FALSE) {
603 		MV_ERROR("RR182x [%d] channel %d: Set Features failed\n",
604 			 pMvSataAdapter->adapterId, channelNum);
605 		return -1;
606 	}
607 
608 	udmaMode = MV_ATA_TRANSFER_UDMA_0;
609 	if (pMvSataChannel->identifyDevice[IDEN_UDMA_MODE] & 0x40) {
610 		udmaMode =  MV_ATA_TRANSFER_UDMA_6;
611 	} else if (pMvSataChannel->identifyDevice[IDEN_UDMA_MODE] & 0x20) {
612 		udmaMode =  MV_ATA_TRANSFER_UDMA_5;
613 	} else if (pMvSataChannel->identifyDevice[IDEN_UDMA_MODE] & 0x10) {
614 		udmaMode =  MV_ATA_TRANSFER_UDMA_4;
615 	} else if (pMvSataChannel->identifyDevice[IDEN_UDMA_MODE] & 8) {
616 		udmaMode =  MV_ATA_TRANSFER_UDMA_3;
617 	} else if (pMvSataChannel->identifyDevice[IDEN_UDMA_MODE] & 4) {
618 		udmaMode =  MV_ATA_TRANSFER_UDMA_2;
619 	}
620 
621 	KdPrint(("RR182x [%d] Set transfer mode XFER_UDMA_%d\n",
622 		pMvSataAdapter->adapterId, udmaMode & 0xf));
623 	pChannelInfo->maxUltraDmaModeSupported = udmaMode;
624 
625 #if 0
626 	if (mvStorageDevATASetFeatures(pMvSataAdapter, channelNum,
627 	    MV_ATA_SET_FEATURES_TRANSFER, udmaMode, 0, 0, 0) == MV_FALSE) {
628 		MV_ERROR("RR182x [%d] channel %d: Set Features failed\n",
629 			 pMvSataAdapter->adapterId, channelNum);
630 		return -1;
631 	}
632 #endif
633 	if (pChannelInfo->maxUltraDmaModeSupported == 0xFF)
634 		return TRUE;
635 
636 	do {
637 		if (mvStorageDevATASetFeatures(pMvSataAdapter, channelNum,
638 		    MV_ATA_SET_FEATURES_TRANSFER,
639 		    pChannelInfo->maxUltraDmaModeSupported, 0, 0, 0) !=
640 		    MV_FALSE) {
641 			break;
642 		}
643 
644 		if (pChannelInfo->maxUltraDmaModeSupported <=
645 		    MV_ATA_TRANSFER_UDMA_0) {
646 			return FALSE;
647 		}
648 		if (mvStorageDevATASoftResetDevice(pMvSataAdapter,
649 		    channelNum) == MV_FALSE) {
650 			mv_reg_write_byte(pMvSataAdapter->adapterIoBaseAddress,
651 			    pMvSataChannel->eDmaRegsOffset + 0x11c,
652 			    /* command reg */ MV_ATA_COMMAND_IDLE_IMMEDIATE);
653 			mvMicroSecondsDelay(10000);
654 			mvSataChannelHardReset(pMvSataAdapter, channelNum);
655 			if (mvStorageDevATASoftResetDevice(pMvSataAdapter,
656 			    channelNum) == MV_FALSE)
657 				return FALSE;
658 		}
659 		if (mvSataChannelHardReset(pMvSataAdapter, channelNum) ==
660 		    MV_FALSE)
661 			return FALSE;
662 		pChannelInfo->maxUltraDmaModeSupported--;
663 	} while (1);
664 
665 #ifdef ENABLE_READ_AHEAD
666 	/* Read look ahead */
667 	if (pMvSataChannel->identifyDevice[82] & 0x40) {
668 		if (!(pMvSataChannel->identifyDevice[85] & 0x40)) {
669 			/* if not enabled by default */
670 			if (mvStorageDevATASetFeatures(pMvSataAdapter,
671 			    channelNum, MV_ATA_SET_FEATURES_ENABLE_RLA, 0, 0,
672 			    0, 0) == MV_FALSE) {
673 				MV_ERROR("RR182x [%d] channel %d: Set Features "
674 					 "failed\n", pMvSataAdapter->adapterId,
675 					 channelNum);
676 				return -1;
677 			}
678 		}
679 		KdPrint(("RR182x [%d]: channel=%d, read look ahead enabled\n",
680 			pMvSataAdapter->adapterId, channelNum));
681 	} else {
682 		KdPrint(("RR182x [%d]: channel %d, Read Look Ahead not "
683 			"supported\n", pMvSataAdapter->adapterId, channelNum));
684 	}
685 #else
686 	if (pMvSataChannel->identifyDevice[86] & 0x20) {
687 		KdPrint(("RR182x [%d]:channel %d, disable read look ahead\n",
688 			pMvSataAdapter->adapterId, channelNum));
689 		if (mvStorageDevATASetFeatures(pMvSataAdapter, channelNum,
690 		    MV_ATA_SET_FEATURES_DISABLE_RLA, 0, 0, 0, 0) == MV_FALSE) {
691 			MV_ERROR("RR182x [%d]:channel %d:  ATA Set Features "
692 				 "failed\n", pMvSataAdapter->adapterId,
693 				 channelNum);
694 			return -1;
695 		}
696 	}
697 	KdPrint(("RR182x [%d]:channel %d, read look ahead disabled\n",
698 		  pMvSataAdapter->adapterId, channelNum));
699 #endif
700 
701 #if 0
702 	KdPrint(("RR182x [%d]:channel %d, Set standby timer to 200 seconds\n",
703 			  pMvSataAdapter->adapterId, channelNum));
704 	if (mvStorageDevATAExecuteNonUDMACommand(pMvSataAdapter, channelNum,
705 						 MV_NON_UDMA_PROTOCOL_NON_DATA,
706 						 MV_FALSE,	/* isEXT*/
707 						 NULL, 0, 0,	/* features*/
708 						 40,		/*sectorCount*/
709 						 0,		/*lbaLow*/
710 						 0,		/*lbaMid*/
711 						 0,		/*lbaHigh*/
712 	 					 0,		/*device*/
713 						 MV_ATA_COMMAND_IDLE) ==
714 						 MV_FALSE) {
715 		MV_ERROR("RR182x [%d]:channel %d:  ATA Idle command failed\n",
716 			 pMvSataAdapter->adapterId, channelNum);
717 		return -1;
718 	}
719 #endif
720 
721 #if 0
722 	/* 2003-9-16 disable TCQ until we have better solution */
723 	if ((pMvSataChannel->identifyDevice[IDEN_SUPPORTED_COMMANDS2] & 2)) {
724 		MV_U8       depth;
725 		MV_BOOLEAN  result;
726 
727 		depth = (pMvSataChannel->identifyDevice[IDEN_QUEUE_DEPTH] &
728 		    0x1f) + 1;
729 		KdPrint(("RR182x [%d]: channel %d config EDMA, Queued Mode, "
730 			"queue depth %d\n", pMvSataAdapter->adapterId,
731 			channelNum, depth));
732 		result = mvSataConfigEdmaMode(pMvSataAdapter, channelNum,
733 		    MV_EDMA_MODE_QUEUED, depth);
734 		if (result == MV_FALSE) {
735 			MV_ERROR("RR182x [%d] Error: mvSataConfigEdmaMode "
736 				 "failed\n", pMvSataAdapter->adapterId);
737 			return -1;
738 		}
739 	} else {
740 #endif
741 	KdPrint(("RR182x [%d]: channel %d config EDMA, Non Queued Mode\n",
742 		pMvSataAdapter->adapterId, channelNum));
743 	if (mvSataConfigEdmaMode(pMvSataAdapter, channelNum,
744 	    MV_EDMA_MODE_NOT_QUEUED, 0) == MV_FALSE) {
745 		MV_ERROR("RR182x [%d] channel %d Error: mvSataConfigEdmaMode "
746 			 "failed\n", pMvSataAdapter->adapterId, channelNum);
747 		return -1;
748 	}
749 
750 	/* Enable EDMA */
751 	if (mvSataEnableChannelDma(pMvSataAdapter, channelNum) == MV_FALSE) {
752 		MV_ERROR("RR182x [%d] Failed to enable DMA, channel=%d\n",
753 			 pMvSataAdapter->adapterId, channelNum);
754 		return -1;
755 	}
756 	MV_ERROR("RR182x [%d,%d]: channel started successfully\n",
757 		 pMvSataAdapter->adapterId, channelNum);
758 
759 #ifndef FOR_DEMO
760 	set_fail_led(pMvSataAdapter, channelNum, 0);
761 #endif
762 	return 0;
763 }
764 
765 static void
766 hptmv_handle_event(void * data, int flag)
767 {
768 	IAL_ADAPTER_T *pAdapter;
769 	MV_SATA_ADAPTER *pMvSataAdapter;
770 	MV_U8 channelIndex;
771 
772 	pAdapter = (IAL_ADAPTER_T *)data;
773 	pMvSataAdapter = &pAdapter->mvSataAdapter;
774 
775 	mvOsSemTake(&pMvSataAdapter->semaphore);
776 	for (channelIndex = 0; channelIndex < MV_SATA_CHANNELS_NUM;
777 	     channelIndex++) {
778 		switch(pAdapter->sataEvents[channelIndex]) {
779 		case SATA_EVENT_CHANNEL_CONNECTED:
780 			/* Handle only connects */
781 			if (flag == 1)
782 				break;
783 			KdPrint(("RR182x [%d,%d]: new device connected\n",
784 				pMvSataAdapter->adapterId, channelIndex));
785 			hptmv_init_channel(pAdapter, channelIndex);
786 			if (mvSataConfigureChannel( pMvSataAdapter,
787 			    channelIndex) == MV_FALSE) {
788 				MV_ERROR("RR182x [%d,%d] Failed to configure\n",
789 					 pMvSataAdapter->adapterId,
790 					 channelIndex);
791 				hptmv_free_channel(pAdapter, channelIndex);
792 			} else {
793 #if 0
794 				mvSataChannelHardReset(pMvSataAdapter, channel);
795 #endif
796 				if (start_channel( pAdapter, channelIndex)) {
797 					MV_ERROR("RR182x [%d,%d]Failed to start"
798 						 " channel\n",
799 						 pMvSataAdapter->adapterId,
800 						 channelIndex);
801 					hptmv_free_channel(pAdapter,
802 					    channelIndex);
803 				} else {
804 					device_change(pAdapter, channelIndex,
805 					    TRUE);
806 				}
807 			}
808 			pAdapter->sataEvents[channelIndex] =
809 			    SATA_EVENT_NO_CHANGE;
810 			break;
811 
812 		case SATA_EVENT_CHANNEL_DISCONNECTED:
813 			/* Handle only disconnects */
814 			if (flag == 0)
815 				break;
816 			KdPrint(("RR182x [%d,%d]: device disconnected\n",
817 				 pMvSataAdapter->adapterId, channelIndex));
818 				/* Flush pending commands */
819 			if(pMvSataAdapter->sataChannel[channelIndex]) {
820 				_VBUS_INST(&pAdapter->VBus)
821 				mvSataFlushDmaQueue (pMvSataAdapter,
822 				    channelIndex, MV_FLUSH_TYPE_CALLBACK);
823 				CheckPendingCall(_VBUS_P0);
824 				mvSataRemoveChannel(pMvSataAdapter,
825 				    channelIndex);
826 				hptmv_free_channel(pAdapter, channelIndex);
827 				pMvSataAdapter->sataChannel[channelIndex] =
828 				    NULL;
829 				KdPrint(("RR182x [%d,%d]: channel removed\n",
830 					pMvSataAdapter->adapterId,
831 					channelIndex));
832 				if (pAdapter->outstandingCommands==0 &&
833 				    DPC_Request_Nums==0)
834 					Check_Idle_Call(pAdapter);
835 				} else {
836 				KdPrint(("RR182x [%d,%d]: channel already "
837 					"removed!!\n",
838 					pMvSataAdapter->adapterId,
839 					channelIndex));
840 			}
841 			pAdapter->sataEvents[channelIndex] =
842 			    SATA_EVENT_NO_CHANGE;
843 			break;
844 
845 		case SATA_EVENT_NO_CHANGE:
846 			break;
847 
848 		default:
849 			break;
850 		}
851 	}
852 	mvOsSemRelease(&pMvSataAdapter->semaphore);
853 }
854 
855 #define EVENT_CONNECT					1
856 #define EVENT_DISCONNECT				0
857 
858 static void
859 hptmv_handle_event_connect(void *data)
860 {
861 	hptmv_handle_event (data, 0);
862 }
863 
864 static void
865 hptmv_handle_event_disconnect(void *data)
866 {
867 	hptmv_handle_event (data, 1);
868 }
869 
870 static MV_BOOLEAN
871 hptmv_event_notify(MV_SATA_ADAPTER *pMvSataAdapter, MV_EVENT_TYPE eventType,
872 		   MV_U32 param1, MV_U32 param2)
873 {
874 	IAL_ADAPTER_T *pAdapter = pMvSataAdapter->IALData;
875 
876 	switch (eventType) {
877 	case MV_EVENT_TYPE_SATA_CABLE:
878 	{
879 		MV_U8   channel = param2;
880 
881 		if (param1 == EVENT_CONNECT) {
882 			pAdapter->sataEvents[channel] =
883 			    SATA_EVENT_CHANNEL_CONNECTED;
884 			KdPrint(("RR182x [%d,%d]: device connected event "
885 				"received\n", pMvSataAdapter->adapterId,
886 				channel));
887 			/*
888 			 * Delete previous timers (if multiple drives connected
889 			 * in the same time
890 			 */
891 			pAdapter->event_timer_connect =
892 			    timeout(hptmv_handle_event_connect, pAdapter,10*hz);
893 		} else if (param1 == EVENT_DISCONNECT) {
894 			pAdapter->sataEvents[channel] =
895 			    SATA_EVENT_CHANNEL_DISCONNECTED;
896 			KdPrint(("RR182x [%d,%d]: device disconnected event "
897 				"received \n", pMvSataAdapter->adapterId,
898 				channel));
899 			device_change(pAdapter, channel, FALSE);
900 			/*
901 			 * Delete previous timers (if multiple drives
902 			 * disconnected in the same time
903 			 */
904 			pAdapter->event_timer_disconnect =
905 			    timeout(hptmv_handle_event_disconnect, pAdapter,
906 			    10*hz);
907 		} else {
908 			MV_ERROR("RR182x: illigal value for param1(%d) at "
909 				 "connect/disconect event, host=%d\n", param1,
910 				 pMvSataAdapter->adapterId );
911 
912 		}
913 		break;
914 	}
915 	case MV_EVENT_TYPE_ADAPTER_ERROR:
916 		KdPrint(("RR182x: DEVICE error event received, pci cause "
917 			  "reg=%x,  don't how to handle this\n", param1));
918 		return MV_TRUE;
919 	default:
920 		MV_ERROR("RR182x[%d]: unknown event type (%d)\n",
921 			 pMvSataAdapter->adapterId, eventType);
922 		return MV_FALSE;
923 	}
924 	return MV_TRUE;
925 }
926 
927 static void
928 hptmv_map_req(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
929 {
930 	dma_addr_t *addr;
931 
932 	addr = (dma_addr_t *)arg;
933 
934 	if (error || nsegs != 1)
935 		return;
936 
937 	*addr = segs[0].ds_addr;
938 
939 	return;
940 }
941 
942 static int
943 hptmv_allocate_edma_queues(IAL_ADAPTER_T *pAdapter)
944 {
945 	if (bus_dmamem_alloc(pAdapter->req_dmat,
946 	    (void **)&pAdapter->requestsArrayBaseAddr, BUS_DMA_WAITOK,
947 	    &pAdapter->req_map) != 0) {
948 		MV_ERROR("RR182x[%d]: Failed to allocate memory for EDMA "
949 		    "request queues\n", pAdapter->mvSataAdapter.adapterId);
950 		return -1;
951 	}
952 
953 	(void)bus_dmamap_load(pAdapter->req_dmat, pAdapter->req_map,
954 	    pAdapter->requestsArrayBaseAddr, REQUESTS_ARRAY_SIZE, hptmv_map_req,
955 	    &pAdapter->requestsArrayBaseDmaAddr, 0);
956 
957 	pAdapter->requestsArrayBaseAlignedAddr =
958 	    pAdapter->requestsArrayBaseAddr;
959 	pAdapter->requestsArrayBaseAlignedAddr += MV_EDMA_REQUEST_QUEUE_SIZE;
960 	pAdapter->requestsArrayBaseAlignedAddr =
961 	    (MV_U8 *)(((ULONG_PTR)pAdapter->requestsArrayBaseAlignedAddr) &
962 	    ~(ULONG_PTR)(MV_EDMA_REQUEST_QUEUE_SIZE - 1));
963 	pAdapter->requestsArrayBaseDmaAlignedAddr =
964 	    pAdapter->requestsArrayBaseDmaAddr;
965 	pAdapter->requestsArrayBaseDmaAlignedAddr += MV_EDMA_REQUEST_QUEUE_SIZE;
966 	pAdapter->requestsArrayBaseDmaAlignedAddr &=
967 	    ~(ULONG_PTR)(MV_EDMA_REQUEST_QUEUE_SIZE - 1);
968 
969 	if ((pAdapter->requestsArrayBaseDmaAlignedAddr -
970 	    pAdapter->requestsArrayBaseDmaAddr) !=
971 	    (pAdapter->requestsArrayBaseAlignedAddr -
972 	    pAdapter->requestsArrayBaseAddr)) {
973 		MV_ERROR("RR182x[%d]: Error in Request Quueues Alignment\n",
974 			 pAdapter->mvSataAdapter.adapterId);
975 		bus_dmamap_unload(pAdapter->req_dmat, pAdapter->req_map);
976 		bus_dmamem_free(pAdapter->req_dmat,
977 		    pAdapter->requestsArrayBaseAddr, pAdapter->req_map);
978 		return -1;
979 	}
980 	/* response queues */
981 	if (bus_dmamem_alloc(pAdapter->resp_dmat,
982 	    (void **)&pAdapter->responsesArrayBaseAddr, BUS_DMA_WAITOK,
983 	    &pAdapter->resp_map) != 0) {
984 		MV_ERROR("RR182x[%d]: Failed to allocate memory for EDMA "
985 		    "response queues\n", pAdapter->mvSataAdapter.adapterId);
986 		bus_dmamap_unload(pAdapter->req_dmat, pAdapter->req_map);
987 		bus_dmamem_free(pAdapter->req_dmat,
988 		    pAdapter->requestsArrayBaseAddr, pAdapter->req_map);
989 		return -1;
990 	}
991 
992 	(void)bus_dmamap_load(pAdapter->resp_dmat, pAdapter->resp_map,
993 	    pAdapter->responsesArrayBaseAddr, RESPONSES_ARRAY_SIZE,
994 	    hptmv_map_req, &pAdapter->responsesArrayBaseDmaAddr, 0);
995 
996 	pAdapter->responsesArrayBaseAlignedAddr =
997 	    pAdapter->responsesArrayBaseAddr;
998 	pAdapter->responsesArrayBaseAlignedAddr += MV_EDMA_RESPONSE_QUEUE_SIZE;
999 	pAdapter->responsesArrayBaseAlignedAddr =
1000 	    (MV_U8 *)(((ULONG_PTR)pAdapter->responsesArrayBaseAlignedAddr) &
1001 	    ~(ULONG_PTR)(MV_EDMA_RESPONSE_QUEUE_SIZE - 1));
1002 	pAdapter->responsesArrayBaseDmaAlignedAddr =
1003 	    pAdapter->responsesArrayBaseDmaAddr;
1004 	pAdapter->responsesArrayBaseDmaAlignedAddr +=
1005 	    MV_EDMA_RESPONSE_QUEUE_SIZE;
1006 	pAdapter->responsesArrayBaseDmaAlignedAddr &=
1007 	    ~(ULONG_PTR)(MV_EDMA_RESPONSE_QUEUE_SIZE - 1);
1008 
1009 	if ((pAdapter->responsesArrayBaseDmaAlignedAddr -
1010 	    pAdapter->responsesArrayBaseDmaAddr) !=
1011 	    (pAdapter->responsesArrayBaseAlignedAddr -
1012 	    pAdapter->responsesArrayBaseAddr)) {
1013 		MV_ERROR("RR182x[%d]: Error in Response Quueues Alignment\n",
1014 			 pAdapter->mvSataAdapter.adapterId);
1015 		hptmv_free_edma_queues(pAdapter);
1016 		return -1;
1017 	}
1018 	return 0;
1019 }
1020 
1021 static void
1022 hptmv_free_edma_queues(IAL_ADAPTER_T *pAdapter)
1023 {
1024 	bus_dmamap_unload(pAdapter->req_dmat, pAdapter->req_map);
1025 	bus_dmamem_free(pAdapter->req_dmat, pAdapter->requestsArrayBaseAddr,
1026 	    pAdapter->req_map);
1027 	bus_dmamap_unload(pAdapter->resp_dmat, pAdapter->resp_map);
1028 	bus_dmamem_free(pAdapter->resp_dmat, pAdapter->responsesArrayBaseAddr,
1029 	    pAdapter->resp_map);
1030 }
1031 
1032 static PVOID
1033 AllocatePRDTable(IAL_ADAPTER_T *pAdapter)
1034 {
1035 	PVOID ret;
1036 	if (pAdapter->pFreePRDLink) {
1037 		KdPrint(("pAdapter->pFreePRDLink:%p\n",
1038 		    pAdapter->pFreePRDLink));
1039 		ret = pAdapter->pFreePRDLink;
1040 		pAdapter->pFreePRDLink = *(void**)ret;
1041 		return ret;
1042 	}
1043 	return NULL;
1044 }
1045 
1046 static void
1047 FreePRDTable(IAL_ADAPTER_T *pAdapter, PVOID PRDTable)
1048 {
1049 	*(void**)PRDTable = pAdapter->pFreePRDLink;
1050 	pAdapter->pFreePRDLink = PRDTable;
1051 }
1052 
1053 extern PVDevice fGetFirstChild(PVDevice pLogical);
1054 extern void fResetBootMark(PVDevice pLogical);
1055 static void
1056 fRegisterVdevice(IAL_ADAPTER_T *pAdapter)
1057 {
1058 	PVDevice pPhysical, pLogical;
1059 	PVBus  pVBus;
1060 	int i,j;
1061 
1062 	for(i = 0; i < MV_SATA_CHANNELS_NUM; i++) {
1063 		pPhysical = &(pAdapter->VDevices[i]);
1064 		pLogical = pPhysical;
1065 		while (pLogical->pParent) pLogical = pLogical->pParent;
1066 		if (pLogical->vf_online==0) {
1067 			pPhysical->vf_bootmark = pLogical->vf_bootmark = 0;
1068 			continue;
1069 		}
1070 		if (pLogical->VDeviceType == VD_SPARE ||
1071 		    pPhysical != fGetFirstChild(pLogical))
1072 			continue;
1073 
1074 		pVBus = &pAdapter->VBus;
1075 		if(pVBus) {
1076 			j=0;
1077 			while(j < MAX_VDEVICE_PER_VBUS && pVBus->pVDevice[j])
1078 				j++;
1079 			if (j < MAX_VDEVICE_PER_VBUS) {
1080 				pVBus->pVDevice[j] = pLogical;
1081 				pLogical->pVBus = pVBus;
1082 
1083 				if (j>0 && pLogical->vf_bootmark) {
1084 					if (pVBus->pVDevice[0]->vf_bootmark) {
1085 						fResetBootMark(pLogical);
1086 					} else {
1087 						do {
1088 							pVBus->pVDevice[j] =
1089 							   pVBus->pVDevice[j-1];
1090 						} while (--j);
1091 						pVBus->pVDevice[0] = pLogical;
1092 					}
1093 				}
1094 			}
1095 		}
1096 	}
1097 }
1098 
1099 PVDevice
1100 GetSpareDisk(_VBUS_ARG PVDevice pArray)
1101 {
1102 	IAL_ADAPTER_T *pAdapter;
1103 	ULONG capacity;
1104 	ULONG thiscap, maxcap = MAX_LBA_T;
1105 	PVDevice pVDevice, pFind = NULL;
1106 	int i;
1107 
1108 	pAdapter = (IAL_ADAPTER_T *)pArray->pVBus->OsExt;
1109 	capacity =
1110 	    LongDiv(pArray->VDeviceCapacity, pArray->u.array.bArnMember-1);
1111 	for (i = 0;i < MV_SATA_CHANNELS_NUM; i++) {
1112 		pVDevice = &pAdapter->VDevices[i];
1113 		if(!pVDevice)
1114 			continue;
1115 		thiscap = pArray->vf_format_v2 ?
1116 		   pVDevice->u.disk.dDeRealCapacity : pVDevice->VDeviceCapacity;
1117 		/* find the smallest usable spare disk */
1118 		if (pVDevice->VDeviceType==VD_SPARE &&
1119 		    pVDevice->u.disk.df_on_line && thiscap < maxcap &&
1120 		    thiscap >= capacity) {
1121 			maxcap = pVDevice->VDeviceCapacity;
1122 			pFind = pVDevice;
1123 		}
1124 	}
1125 	return pFind;
1126 }
1127 
1128 /******************************************************************
1129  * IO ATA Command
1130  *******************************************************************/
1131 int HPTLIBAPI
1132 fDeReadWrite(PDevice pDev, ULONG Lba, UCHAR Cmd, void *tmpBuffer)
1133 {
1134 	return mvReadWrite(pDev->mv, Lba, Cmd, tmpBuffer);
1135 }
1136 
1137 void HPTLIBAPI fDeSelectMode(PDevice pDev, UCHAR NewMode)
1138 {
1139 #ifndef SIMULATE
1140 	MV_SATA_CHANNEL *pSataChannel;
1141 	MV_SATA_ADAPTER *pSataAdapter;
1142 	MV_U8 channelIndex;
1143 	UCHAR mvMode;
1144 
1145 	pSataChannel = pDev->mv;
1146 	pSataAdapter = pSataChannel->mvSataAdapter;
1147 	channelIndex = pSataChannel->channelNumber;
1148 
1149 	/* 508x don't use MW-DMA? */
1150 	if (NewMode>4 && NewMode<8) NewMode = 4;
1151 	pDev->bDeModeSetting = NewMode;
1152 	if (NewMode<=4)
1153 		mvMode = MV_ATA_TRANSFER_PIO_0 + NewMode;
1154 	else
1155 		mvMode = MV_ATA_TRANSFER_UDMA_0 + (NewMode-8);
1156 
1157 	/*To fix 88i8030 bug*/
1158 	if (mvMode > MV_ATA_TRANSFER_UDMA_0 && mvMode < MV_ATA_TRANSFER_UDMA_4)
1159 		mvMode = MV_ATA_TRANSFER_UDMA_0;
1160 
1161 	mvSataDisableChannelDma(pSataAdapter, channelIndex);
1162 	/* Flush pending commands */
1163 	mvSataFlushDmaQueue (pSataAdapter, channelIndex, MV_FLUSH_TYPE_NONE);
1164 
1165 	if (mvStorageDevATASetFeatures(pSataAdapter, channelIndex,
1166 	    MV_ATA_SET_FEATURES_TRANSFER, mvMode, 0, 0, 0) == MV_FALSE) {
1167 		KdPrint(("channel %d: Set Features failed\n", channelIndex));
1168 	}
1169 	/* Enable EDMA */
1170 	if (mvSataEnableChannelDma(pSataAdapter, channelIndex) == MV_FALSE)
1171 		KdPrint(("Failed to enable DMA, channel=%d", channelIndex));
1172 #endif
1173 }
1174 
1175 #ifdef SUPPORT_ARRAY
1176 #define IdeRegisterVDevice  fCheckArray
1177 #else
1178 void
1179 IdeRegisterVDevice(PDevice pDev)
1180 {
1181 	PVDevice pVDev = Map2pVDevice(pDev);
1182 
1183 	pVDev->VDeviceType = pDev->df_atapi? VD_ATAPI :
1184 	    pDev->df_removable_drive ? VD_REMOVABLE : VD_SINGLE_DISK;
1185 	pVDev->vf_online = 1;
1186 	pVDev->VDeviceCapacity = pDev->dDeRealCapacity;
1187 	pVDev->pfnSendCommand = pfnSendCommand[pVDev->VDeviceType];
1188 	pVDev->pfnDeviceFailed = pfnDeviceFailed[pVDev->VDeviceType];
1189 }
1190 #endif
1191 
1192 static int num_adapters = 0;
1193 static int
1194 init_adapter(IAL_ADAPTER_T *pAdapter)
1195 {
1196 	PCommand pCmd;
1197 	pPrivCommand prvCmd;
1198 	PVBus _vbus_p = &pAdapter->VBus;
1199 	MV_SATA_ADAPTER *pMvSataAdapter;
1200 	PUCHAR PRDTable;
1201 	int i, channel, rid, error;
1202 
1203 	PVDevice pVDev;
1204 
1205 	intrmask_t oldspl = lock_driver();
1206 
1207 	pAdapter->next = 0;
1208 
1209 	if(gIal_Adapter == 0) {
1210 		gIal_Adapter = pAdapter;
1211 		pCurAdapter = gIal_Adapter;
1212 	} else {
1213 		pCurAdapter->next = pAdapter;
1214 		pCurAdapter = pAdapter;
1215 	}
1216 
1217 	pAdapter->outstandingCommands = 0;
1218 
1219 	pMvSataAdapter = &(pAdapter->mvSataAdapter);
1220 	_vbus_p->OsExt = (void *)pAdapter;
1221 	pMvSataAdapter->IALData = pAdapter;
1222 
1223 	if (bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
1224 	    BUS_SPACE_MAXADDR, NULL, NULL, BUS_SPACE_MAXSIZE_32BIT,
1225 	    MV_MAX_SEGMENTS, BUS_SPACE_MAXSIZE_32BIT, 0, NULL, NULL,
1226 	    &pAdapter->parent_dmat) != 0) {
1227 		MV_ERROR("RR182x: Failed to create busdma resources\n");
1228 		unlock_driver(oldspl);
1229 		return (ENOMEM);
1230 	}
1231 
1232 	if (bus_dma_tag_create(pAdapter->parent_dmat, PAGE_SIZE, 0,
1233 	    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
1234 	    REQUESTS_ARRAY_SIZE, 1, REQUESTS_ARRAY_SIZE, 0, NULL, NULL,
1235 	    &pAdapter->req_dmat) != 0) {
1236 		MV_ERROR("RR182x: Failed to create busdma resources\n");
1237 		error = ENOMEM;
1238 		goto unregister;
1239 	}
1240 
1241 	if (bus_dma_tag_create(pAdapter->parent_dmat, PAGE_SIZE, 0,
1242 	    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
1243 	    RESPONSES_ARRAY_SIZE, 1, RESPONSES_ARRAY_SIZE, 0, NULL, NULL,
1244 	    &pAdapter->resp_dmat) != 0) {
1245 		MV_ERROR("RR182x: Failed to create busdma resources\n");
1246 		error = ENOMEM;
1247 		goto unregister;
1248 	}
1249 
1250 	if (bus_dma_tag_create(pAdapter->parent_dmat, 1, 0,
1251 	    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
1252 	    MAXBSIZE, MV_MAX_SEGMENTS, MAXBSIZE, 0, busdma_lock_mutex, &Giant,
1253 	    &pAdapter->buf_dmat) != 0) {
1254 		MV_ERROR("RR182x: Failed to create busdma resources\n");
1255 		error = ENOMEM;
1256 		goto unregister;
1257 	}
1258 
1259 	if (hptmv_allocate_edma_queues(pAdapter)) {
1260 		MV_ERROR("RR182x: Failed to allocate memory for EDMA queues\n");
1261 		error = ENOMEM;
1262 		goto unregister;
1263 	}
1264 
1265 	/* also map EPROM address */
1266 	rid = 0x10;
1267 	if ((pAdapter->mem_res = bus_alloc_resource(pAdapter->hpt_dev,
1268 	    SYS_RES_MEMORY, &rid, 0, ~0, MV_SATA_PCI_BAR0_SPACE_SIZE+0x40000,
1269 	    RF_ACTIVE)) == 0) {
1270 		MV_ERROR("RR182x: Failed to remap memory space\n");
1271 		error = ENXIO;
1272 		goto unregister;
1273 	}
1274 
1275 	/*
1276 	 * This field is opaque.  Abuse it so that the bus_space functions
1277 	 * can get the info that they need when called.
1278 	 */
1279 	pMvSataAdapter->adapterIoBaseAddress = pAdapter;
1280 	pAdapter->mem_bsh = rman_get_bushandle(pAdapter->mem_res);
1281 	pAdapter->mem_btag = rman_get_bustag(pAdapter->mem_res);
1282 
1283 	pMvSataAdapter->adapterId = num_adapters++;
1284 	/* get the revision ID */
1285 	pMvSataAdapter->pciConfigRevisionId =
1286 	    pci_read_config(pAdapter->hpt_dev, PCIR_REVID, 1);
1287 	pMvSataAdapter->pciConfigDeviceId = pci_get_device(pAdapter->hpt_dev);
1288 
1289 	/* init RR182x */
1290 	pMvSataAdapter->intCoalThre[0]= 1;
1291 	pMvSataAdapter->intCoalThre[1]= 1;
1292 	pMvSataAdapter->intTimeThre[0] = 1;
1293 	pMvSataAdapter->intTimeThre[1] = 1;
1294 	pMvSataAdapter->pciCommand = 0x0107E371;
1295 	pMvSataAdapter->pciSerrMask = 0xd77fe6ul;
1296 	pMvSataAdapter->pciInterruptMask = 0xd77fe6ul;
1297 	pMvSataAdapter->mvSataEventNotify = hptmv_event_notify;
1298 
1299 	if (mvSataInitAdapter(pMvSataAdapter) == MV_FALSE) {
1300 		MV_ERROR("RR182x[%d]: core failed to initialize the adapter\n",
1301 			 pMvSataAdapter->adapterId);
1302 		error = ENXIO;
1303 		goto unregister;
1304 	}
1305 	pAdapter->ver_601 = pMvSataAdapter->pcbVersion;
1306 
1307 #ifndef FOR_DEMO
1308 	set_fail_leds(pMvSataAdapter, 0);
1309 #endif
1310 
1311 	/* setup command blocks */
1312 	KdPrint(("Allocate command blocks\n"));
1313 	_vbus_(pFreeCommands) = 0;
1314 	pAdapter->pCommandBlocks = malloc(sizeof(struct _Command) *
1315 	    MAX_COMMAND_BLOCKS_FOR_EACH_VBUS, M_DEVBUF, M_ZERO | M_WAITOK);
1316 	KdPrint(("pCommandBlocks:%p\n", pAdapter->pCommandBlocks));
1317 
1318 	/*
1319 	 * Gotta cheat here.  The _Command struct only gives us a single
1320 	 * pointer for private data, but we need to store more than that.
1321 	 * Of course the pCommand retains no type stability, and FreeCommand
1322 	 * is hidden in the binary object, so gotta track these on our own
1323 	 * list.
1324 	 */
1325 	pAdapter->pPrivateBlocks = malloc(sizeof(struct _privCommand) *
1326 	    MAX_COMMAND_BLOCKS_FOR_EACH_VBUS, M_DEVBUF, M_ZERO | M_WAITOK);
1327 	TAILQ_INIT(&pAdapter->PrivCmdTQH);
1328 
1329 	for (i = 0; i < MAX_COMMAND_BLOCKS_FOR_EACH_VBUS; i++) {
1330 		pCmd = &pAdapter->pCommandBlocks[i];
1331 		prvCmd = &pAdapter->pPrivateBlocks[i];
1332 		prvCmd->pAdapter = pAdapter;
1333 		if ((error = bus_dmamap_create(pAdapter->buf_dmat, 0,
1334 		    &prvCmd->buf_map)) == 0) {
1335 			FreeCommand(_VBUS_P (pCmd));
1336 			FreePrivCommand(pAdapter, prvCmd);
1337 		} else
1338 			break;
1339 	}
1340 
1341 	/* setup PRD Tables */
1342 	KdPrint(("Allocate PRD Tables\n"));
1343 	pAdapter->pFreePRDLink = 0;
1344 
1345 	if (bus_dma_tag_create(pAdapter->parent_dmat, PAGE_SIZE, 0,
1346 	    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
1347 	    PRD_ENTRIES_SIZE * PRD_TABLES_FOR_VBUS, 1,
1348 	    PRD_ENTRIES_SIZE * PRD_TABLES_FOR_VBUS, 0, NULL, NULL,
1349 	    &pAdapter->prd_dmat) != 0) {
1350 		MV_ERROR("RR182x: Failed to create busdma resources\n");
1351 		error = ENOMEM;
1352 		goto unregister;
1353 	}
1354 
1355 	if (bus_dmamem_alloc(pAdapter->prd_dmat,
1356 	    (void **)&pAdapter->prdTableAddr, BUS_DMA_WAITOK,
1357 	    &pAdapter->prd_map) != 0)
1358 		goto unregister;
1359 
1360 	(void)bus_dmamap_load(pAdapter->prd_dmat, pAdapter->prd_map,
1361 	    pAdapter->prdTableAddr, PRD_ENTRIES_SIZE * PRD_TABLES_FOR_VBUS,
1362 	    hptmv_map_req, &pAdapter->prdTableDmaAddr, 0);
1363 
1364 	KdPrint(("prdTableAddr:%p\n",pAdapter->prdTableAddr));
1365 	if (!pAdapter->prdTableAddr) {
1366 		MV_ERROR("insufficient PRD Tables\n");
1367 		error = ENOMEM;
1368 		goto unregister;
1369 	}
1370 
1371 	PRDTable = pAdapter->prdTableAddr;
1372 	for (i = 0; i < PRD_TABLES_FOR_VBUS; i++) {
1373 		KdPrint(("i= %d, pAdapter->pFreePRDLink= %p\n", i,
1374 		    pAdapter->pFreePRDLink));
1375 		FreePRDTable(pAdapter, PRDTable);
1376 		PRDTable += PRD_ENTRIES_SIZE;
1377 	}
1378 
1379 	/* enable the adapter interrupts */
1380 
1381 	/* configure and start the connected channels*/
1382 	for (channel = 0; channel < MV_SATA_CHANNELS_NUM; channel++) {
1383 		pAdapter->mvChannel[channel].online = MV_FALSE;
1384 		if (mvSataIsStorageDeviceConnected(pMvSataAdapter, channel)
1385 		    != MV_TRUE)
1386 			continue;
1387 
1388 		KdPrint(("RR182x[%d]: channel %d is connected\n",
1389 			pMvSataAdapter->adapterId, channel));
1390 
1391 		if (hptmv_init_channel(pAdapter, channel) == 0) {
1392 			if (mvSataConfigureChannel(pMvSataAdapter, channel)
1393 			    == MV_FALSE) {
1394 				MV_ERROR("RR182x[%d]: Failed to configure "
1395 				    "channel %d\n", pMvSataAdapter->adapterId,
1396 				    channel);
1397 				hptmv_free_channel(pAdapter, channel);
1398 				continue;
1399 			}
1400 			if (start_channel(pAdapter, channel)) {
1401 				MV_ERROR("RR182x[%d]: Failed to start channel, "
1402 				   "channel=%d\n", pMvSataAdapter->adapterId,
1403 				    channel);
1404 				hptmv_free_channel(pAdapter, channel);
1405 			}
1406 			pAdapter->mvChannel[channel].online = MV_TRUE;
1407 #if 0
1408 			mvSataChannelSetEdmaLoopBackMode(
1409 			    pMvSataAdapter, channel, MV_TRUE);
1410 #endif
1411 		}
1412 		KdPrint(("pAdapter->mvChannel[channel].online:%x, channel:%d\n",
1413 			pAdapter->mvChannel[channel].online, channel));
1414 	}
1415 
1416 #ifdef SUPPORT_ARRAY
1417 	for(i = MAX_ARRAY_DEVICE - 1; i >= 0; i--) {
1418 		pVDev = ArrayTables(i);
1419 		mArFreeArrayTable(pVDev);
1420 	}
1421 #endif
1422 
1423 	KdPrint(("Initialize Devices\n"));
1424 	for (channel = 0; channel < MV_SATA_CHANNELS_NUM; channel++) {
1425 		MV_SATA_CHANNEL *pMvSataChannel;
1426 
1427 		pMvSataChannel = pMvSataAdapter->sataChannel[channel];
1428 		if (pMvSataChannel) {
1429 			init_vdev_params(pAdapter, channel);
1430 			IdeRegisterVDevice(&pAdapter->VDevices[channel].u.disk);
1431 		}
1432 	}
1433 #ifdef SUPPORT_ARRAY
1434 	CheckArrayCritical(_VBUS_P0);
1435 #endif
1436 	_vbus_p->nInstances = 1;
1437 	fRegisterVdevice(pAdapter);
1438 
1439 	for (channel=0;channel<MV_SATA_CHANNELS_NUM;channel++) {
1440 		pVDev = _vbus_p->pVDevice[channel];
1441 		if (pVDev && pVDev->vf_online)
1442 			fCheckBootable(pVDev);
1443 	}
1444 
1445 #if defined(SUPPORT_ARRAY) && defined(_RAID5N_)
1446 	init_raid5_memory(_VBUS_P0);
1447 	_vbus_(r5).enable_write_back = 1;
1448 	printf("RR182x: RAID5 write-back %s\n",
1449 	    _vbus_(r5).enable_write_back? "enabled" : "disabled");
1450 #endif
1451 
1452 	mvSataUnmaskAdapterInterrupt(pMvSataAdapter);
1453 	unlock_driver(oldspl);
1454 	return 0;
1455 
1456 unregister:
1457 	if (pAdapter->mem_res != 0)
1458 		bus_release_resource(pAdapter->hpt_dev, SYS_RES_MEMORY, rid,
1459 		    pAdapter->mem_res);
1460 
1461 	hptmv_free_edma_queues(pAdapter);
1462 
1463 	if (pAdapter->resp_dmat != NULL)
1464 		bus_dma_tag_destroy(pAdapter->resp_dmat);
1465 	if (pAdapter->req_dmat != NULL)
1466 		bus_dma_tag_destroy(pAdapter->req_dmat);
1467 	if (pAdapter->buf_dmat != NULL)
1468 		bus_dma_tag_destroy(pAdapter->buf_dmat);
1469 	if (pAdapter->parent_dmat != NULL)
1470 		bus_dma_tag_destroy(pAdapter->parent_dmat);
1471 
1472 	unlock_driver(oldspl);
1473 	return error;
1474 }
1475 
1476 int
1477 MvSataResetChannel(MV_SATA_ADAPTER *pMvSataAdapter, MV_U8 channel)
1478 {
1479 	IAL_ADAPTER_T *pAdapter = (IAL_ADAPTER_T *)pMvSataAdapter->IALData;
1480 
1481 	mvSataDisableChannelDma(pMvSataAdapter, channel);
1482 
1483 	/* Flush pending commands */
1484 	mvSataFlushDmaQueue (pMvSataAdapter, channel, MV_FLUSH_TYPE_CALLBACK);
1485 
1486 	/* Software reset channel */
1487 	if (mvStorageDevATASoftResetDevice(pMvSataAdapter, channel) ==
1488 	    MV_FALSE) {
1489 		MV_ERROR("RR182x [%d,%d]: failed to perform Software reset\n",
1490 			 pMvSataAdapter->adapterId, channel);
1491 		return -1;
1492 	}
1493 
1494 	/* Hardware reset channel */
1495 	if (mvSataChannelHardReset(pMvSataAdapter, channel)== MV_FALSE) {
1496 		MV_ERROR("RR182x [%d,%d] Failed to Hard reser the SATA "
1497 			 "channel\n", pMvSataAdapter->adapterId, channel);
1498 		hptmv_free_channel(pAdapter, channel);
1499 		return -1;
1500 	}
1501 
1502 	if (mvSataIsStorageDeviceConnected(pMvSataAdapter, channel) ==
1503 	    MV_FALSE) {
1504 		MV_ERROR("RR182x [%d,%d] Failed to Connect Device\n",
1505 			 pMvSataAdapter->adapterId, channel);
1506 		hptmv_free_channel(pAdapter, channel);
1507 		return -1;
1508 	} else {
1509 		/* Set transfer mode */
1510 		if((mvStorageDevATASetFeatures(pMvSataAdapter, channel,
1511 		    MV_ATA_SET_FEATURES_TRANSFER, MV_ATA_TRANSFER_PIO_SLOW, 0,
1512 		    0, 0) == MV_FALSE) ||
1513 		    (mvStorageDevATASetFeatures(pMvSataAdapter, channel,
1514 		    MV_ATA_SET_FEATURES_TRANSFER,
1515 		    pAdapter->mvChannel[channel].maxPioModeSupported, 0, 0, 0)
1516 		    == MV_FALSE) || (mvStorageDevATASetFeatures(pMvSataAdapter,
1517 		    channel, MV_ATA_SET_FEATURES_TRANSFER,
1518 		    pAdapter->mvChannel[channel].maxUltraDmaModeSupported, 0,
1519 		    0, 0) == MV_FALSE)) {
1520 			MV_ERROR("channel %d: Set Features failed", channel);
1521 			hptmv_free_channel(pAdapter, channel);
1522 			return -1;
1523 		}
1524 		/* Enable EDMA */
1525 		if (mvSataEnableChannelDma(pMvSataAdapter, channel)==MV_FALSE) {
1526 			MV_ERROR("Failed to enable DMA, channel=%d", channel);
1527 			hptmv_free_channel(pAdapter, channel);
1528 			return -1;
1529 		}
1530 	}
1531 	return 0;
1532 }
1533 
1534 static int
1535 fResetActiveCommands(PVBus _vbus_p)
1536 {
1537 	MV_SATA_ADAPTER *pMvSataAdapter;
1538 	MV_U8 channel;
1539 	int   rtn = 0;
1540 
1541 	pMvSataAdapter = &((IAL_ADAPTER_T *)_vbus_p->OsExt)->mvSataAdapter;
1542 	for (channel=0;channel< MV_SATA_CHANNELS_NUM;channel++) {
1543 		if (pMvSataAdapter->sataChannel[channel] &&
1544 		    pMvSataAdapter->sataChannel[channel]->outstandingCommands)
1545 			if (MvSataResetChannel(pMvSataAdapter,channel) == -1)
1546 				 rtn = -1;
1547 	}
1548 	HPT_ASSERT(rtn==0);
1549 	return 0;
1550 }
1551 
1552 void
1553 fCompleteAllCommandsSynchronously(PVBus _vbus_p)
1554 {
1555 	UINT cont;
1556 	ULONG ticks = 0;
1557 	MV_U8 channel;
1558 	MV_SATA_ADAPTER *pMvSataAdapter;
1559 	MV_SATA_CHANNEL *pMvSataChannel;
1560 
1561 	pMvSataAdapter = &((IAL_ADAPTER_T *)_vbus_p->OsExt)->mvSataAdapter;
1562 	do {
1563 check_cmds:
1564 		cont = 0;
1565 		CheckPendingCall(_VBUS_P0);
1566 #ifdef _RAID5N_
1567 		dataxfer_poll();
1568 		xor_poll();
1569 #endif
1570 		for (channel = 0; channel < MV_SATA_CHANNELS_NUM; channel++) {
1571 			pMvSataChannel = pMvSataAdapter->sataChannel[channel];
1572 			if (pMvSataChannel &&
1573 			    pMvSataChannel->outstandingCommands) {
1574 				while (pMvSataChannel->outstandingCommands) {
1575 					if (!mvSataInterruptServiceRoutine(
1576 					    pMvSataAdapter)) {
1577 						StallExec(1000);
1578 						if (ticks++ > 3000) {
1579 							MvSataResetChannel(
1580 							    pMvSataAdapter,
1581 							    channel);
1582 							goto check_cmds;
1583 						}
1584 					} else
1585 						ticks = 0;
1586 				}
1587 				cont = 1;
1588 			}
1589 		}
1590 	} while (cont);
1591 }
1592 
1593 void
1594 fResetVBus(_VBUS_ARG0)
1595 {
1596 	KdPrint(("fMvResetBus(%p)", _vbus_p));
1597 
1598 	/* some commands may already finished. */
1599 	CheckPendingCall(_VBUS_P0);
1600 
1601 	fResetActiveCommands(_vbus_p);
1602 	/*
1603 	 * the other pending commands may still be finished successfully.
1604 	 */
1605 	fCompleteAllCommandsSynchronously(_vbus_p);
1606 
1607 	/* Now there should be no pending commands. No more action needed. */
1608 	CheckIdleCall(_VBUS_P0);
1609 
1610 	KdPrint(("fMvResetBus() done"));
1611 }
1612 
1613 void
1614 fRescanAllDevice(_VBUS_ARG0)
1615 {
1616 }
1617 
1618 static MV_BOOLEAN
1619 CommandCompletionCB(MV_SATA_ADAPTER *pMvSataAdapter, MV_U8 channelNum,
1620     MV_COMPLETION_TYPE comp_type, MV_VOID_PTR commandId, MV_U16 responseFlags,
1621     MV_U32 timeStamp, MV_STORAGE_DEVICE_REGISTERS *registerStruct)
1622 {
1623 	PCommand pCmd = (PCommand) commandId;
1624 	_VBUS_INST(pCmd->pVDevice->pVBus)
1625 
1626 	if (pCmd->uScratch.sata_param.prdAddr)
1627 		FreePRDTable(pMvSataAdapter->IALData,
1628 		    pCmd->uScratch.sata_param.prdAddr);
1629 
1630 	switch (comp_type) {
1631 	case MV_COMPLETION_TYPE_NORMAL:
1632 		pCmd->Result = RETURN_SUCCESS;
1633 		break;
1634 	case MV_COMPLETION_TYPE_ABORT:
1635 		pCmd->Result = RETURN_BUS_RESET;
1636 		break;
1637 	case MV_COMPLETION_TYPE_ERROR:
1638 		 MV_ERROR("IAL: COMPLETION ERROR, adapter %d, channel %d, "
1639 			  "flags=%x\n", pMvSataAdapter->adapterId, channelNum,
1640 			  responseFlags);
1641 
1642 		if (responseFlags & 4) {
1643 			MV_ERROR("ATA regs: error %x, sector count %x, LBA low "
1644 				 "%x, LBA mid %x, LBA high %x, device %x, "
1645 				 "status %x\n", registerStruct->errorRegister,
1646 				 registerStruct->sectorCountRegister,
1647 				 registerStruct->lbaLowRegister,
1648 				 registerStruct->lbaMidRegister,
1649 				 registerStruct->lbaHighRegister,
1650 				 registerStruct->deviceRegister,
1651 				 registerStruct->statusRegister);
1652 		}
1653 		/*
1654 		 * We can't do handleEdmaError directly here, because
1655 		 * CommandCompletionCB is called by mv's ISR, if we retry the
1656 		 * command, than the internel data structure may be destroyed
1657 		 */
1658 		pCmd->uScratch.sata_param.responseFlags = responseFlags;
1659 		pCmd->uScratch.sata_param.bIdeStatus =
1660 		    registerStruct->statusRegister;
1661 		pCmd->uScratch.sata_param.errorRegister =
1662 		    registerStruct->errorRegister;
1663 		pCmd->pVDevice->u.disk.QueueLength--;
1664 		CallAfterReturn(_VBUS_P (DPC_PROC)handleEdmaError,pCmd);
1665 		return TRUE;
1666 
1667 	default:
1668 		MV_ERROR(" Unknown completion type (%d)\n", comp_type);
1669 		return MV_FALSE;
1670 	}
1671 
1672 	if (pCmd->uCmd.Ide.Command == IDE_COMMAND_VERIFY &&
1673 	    pCmd->uScratch.sata_param.cmd_priv > 1) {
1674 		pCmd->uScratch.sata_param.cmd_priv --;
1675 		return TRUE;
1676 	}
1677 	pCmd->pVDevice->u.disk.QueueLength--;
1678 	CallAfterReturn(_VBUS_P (DPC_PROC)pCmd->pfnCompletion, pCmd);
1679 	return TRUE;
1680 }
1681 
1682 void
1683 fDeviceSendCommand(_VBUS_ARG PCommand pCmd)
1684 {
1685 	MV_SATA_EDMA_PRD_ENTRY *pPRDTable = 0;
1686 	MV_SATA_ADAPTER *pMvSataAdapter;
1687 	MV_SATA_CHANNEL *pMvSataChannel;
1688 	IAL_ADAPTER_T *pAdapter;
1689 	MV_QUEUE_COMMAND_RESULT result;
1690 	MV_QUEUE_COMMAND_INFO commandInfo;
1691 	MV_UDMA_COMMAND_PARAMS *pUdmaParams;
1692 	MV_NONE_UDMA_COMMAND_PARAMS *pNoUdmaParams;
1693 	MV_BOOLEAN is48bit = MV_FALSE;
1694 	PVDevice pVDevice;
1695 	PDevice pDevice;
1696 	ULONG Lba;
1697 	USHORT nSector;
1698 	MV_U8 channel;
1699 	int  i=0;
1700 
1701 	pVDevice = pCmd->pVDevice;
1702 	pDevice = &pVDevice->u.disk;
1703 	Lba = pCmd->uCmd.Ide.Lba;
1704 	nSector = pCmd->uCmd.Ide.nSectors;
1705 	pUdmaParams = &commandInfo.commandParams.udmaCommand;
1706 	pNoUdmaParams = &commandInfo.commandParams.NoneUdmaCommand;
1707 
1708 	DECLARE_BUFFER(FPSCAT_GATH, tmpSg);
1709 
1710 	if (!pDevice->df_on_line) {
1711 		MV_ERROR("Device is offline");
1712 		pCmd->Result = RETURN_BAD_DEVICE;
1713 		CallAfterReturn(_VBUS_P (DPC_PROC)pCmd->pfnCompletion, pCmd);
1714 		return;
1715 	}
1716 
1717 	pDevice->HeadPosition = pCmd->uCmd.Ide.Lba + pCmd->uCmd.Ide.nSectors;
1718 	pMvSataChannel = pDevice->mv;
1719 	pMvSataAdapter = pMvSataChannel->mvSataAdapter;
1720 	channel = pMvSataChannel->channelNumber;
1721 	pAdapter = pMvSataAdapter->IALData;
1722 
1723 	/*
1724 	 * Old RAID0 has hidden lba. Remember to clear dDeHiddenLba when
1725 	 * deleting array!
1726 	 */
1727 	Lba += pDevice->dDeHiddenLba;
1728 	/* check LBA */
1729 	if (Lba+nSector-1 > pDevice->dDeRealCapacity) {
1730 		pCmd->Result = RETURN_INVALID_REQUEST;
1731 		CallAfterReturn(_VBUS_P (DPC_PROC)pCmd->pfnCompletion, pCmd);
1732 		return;
1733 	}
1734 
1735 	if(Lba & 0xF0000000){
1736 		is48bit = MV_TRUE;
1737 	}
1738 
1739 	switch (pCmd->uCmd.Ide.Command)	{
1740 	case IDE_COMMAND_READ:
1741 	case IDE_COMMAND_WRITE:
1742 		if (pDevice->bDeModeSetting<8) goto pio;
1743 
1744 		commandInfo.type = MV_QUEUED_COMMAND_TYPE_UDMA;
1745 		pUdmaParams->isEXT = is48bit;
1746 		pUdmaParams->numOfSectors = nSector;
1747 		pUdmaParams->lowLBAAddress = Lba;
1748 		pUdmaParams->highLBAAddress = 0;
1749 		pUdmaParams->prdHighAddr = 0;
1750 		pUdmaParams->callBack = CommandCompletionCB;
1751 		pUdmaParams->commandId = (MV_VOID_PTR )pCmd;
1752 		if(pCmd->uCmd.Ide.Command == IDE_COMMAND_READ)
1753 			pUdmaParams->readWrite = MV_UDMA_TYPE_READ;
1754 		else
1755 			pUdmaParams->readWrite = MV_UDMA_TYPE_WRITE;
1756 
1757 		if (pCmd->pSgTable && pCmd->cf_physical_sg) {
1758 			FPSCAT_GATH sg1=tmpSg, sg2=pCmd->pSgTable;
1759 			do {
1760 				*sg1++=*sg2;
1761 			} while ((sg2++->wSgFlag & SG_FLAG_EOT)==0);
1762 		} else if (!pCmd->pfnBuildSgl ||
1763 			    !pCmd->pfnBuildSgl(_VBUS_P pCmd, tmpSg, 0)) {
1764 pio:
1765 			mvSataDisableChannelDma(pMvSataAdapter, channel);
1766 			mvSataFlushDmaQueue(pMvSataAdapter, channel,
1767 			    MV_FLUSH_TYPE_CALLBACK);
1768 
1769 			if (pCmd->pSgTable && pCmd->cf_physical_sg==0) {
1770 				FPSCAT_GATH sg1=tmpSg, sg2=pCmd->pSgTable;
1771 				do {
1772 					*sg1++=*sg2;
1773 				} while ((sg2++->wSgFlag & SG_FLAG_EOT)==0);
1774 			} else if (!pCmd->pfnBuildSgl ||
1775 				    !pCmd->pfnBuildSgl(_VBUS_P pCmd, tmpSg, 1)){
1776 				pCmd->Result = RETURN_NEED_LOGICAL_SG;
1777 				goto finish_cmd;
1778 			}
1779 
1780 			do {
1781 				ULONG size;
1782 				ULONG_PTR addr = tmpSg->dSgAddress;
1783 
1784 				size = tmpSg->wSgSize? tmpSg->wSgSize : 0x10000;
1785 				if (size & 0x1ff) {
1786 					pCmd->Result = RETURN_INVALID_REQUEST;
1787 					goto finish_cmd;
1788 				}
1789 				if (mvStorageDevATAExecuteNonUDMACommand(
1790 				    pMvSataAdapter, channel,
1791 				    (pCmd->cf_data_out) ?
1792 				    MV_NON_UDMA_PROTOCOL_PIO_DATA_OUT :
1793 				    MV_NON_UDMA_PROTOCOL_PIO_DATA_IN,
1794 				    is48bit, (MV_U16_PTR)addr,
1795 				    size >> 1,	/* count */
1796 				    0,		/* features N/A */
1797 				    (MV_U16)(size>>9),	/*sector count*/
1798 				    (MV_U16)((is48bit ?
1799 				    (MV_U16)((Lba >> 16) & 0xFF00) : 0 ) |
1800 				    (UCHAR)(Lba & 0xFF) ), /*lbalow*/
1801 				    (MV_U16)((Lba >> 8) & 0xFF), /* lbaMid */
1802 				    (MV_U16)((Lba >> 16) & 0xFF),/* lbaHig */
1803 				    (MV_U8)(0x40 | (is48bit ? 0 :
1804 				    (UCHAR)(Lba >> 24) & 0xFF )),/* device */
1805 				    (MV_U8)(is48bit ? (pCmd->cf_data_in ?
1806 				    IDE_COMMAND_READ_EXT :
1807 				    IDE_COMMAND_WRITE_EXT) :
1808 				    pCmd->uCmd.Ide.Command))==MV_FALSE) {
1809 					pCmd->Result = RETURN_IDE_ERROR;
1810 					goto finish_cmd;
1811 				}
1812 				Lba += size>>9;
1813 				if(Lba & 0xF0000000) is48bit = MV_TRUE;
1814 			}
1815 			while ((tmpSg++->wSgFlag & SG_FLAG_EOT)==0);
1816 			pCmd->Result = RETURN_SUCCESS;
1817 finish_cmd:
1818 			mvSataEnableChannelDma(pMvSataAdapter,channel);
1819 			CallAfterReturn(_VBUS_P (DPC_PROC)pCmd->pfnCompletion,
1820 			    pCmd);
1821 			return;
1822 		}
1823 
1824 		pPRDTable = AllocatePRDTable(pAdapter);
1825 		KdPrint(("pPRDTable:%p\n",pPRDTable));
1826 		if (!pPRDTable) {
1827 			pCmd->Result = RETURN_DEVICE_BUSY;
1828 			CallAfterReturn(_VBUS_P (DPC_PROC)pCmd->pfnCompletion,
1829 			    pCmd);
1830 			HPT_ASSERT(0);
1831 			return;
1832 		}
1833 
1834 		do {
1835 			pPRDTable[i].highBaseAddr = 0;
1836 			pPRDTable[i].flags = (MV_U16)tmpSg->wSgFlag;
1837 			pPRDTable[i].byteCount = (MV_U16)tmpSg->wSgSize;
1838 			pPRDTable[i].lowBaseAddr = (MV_U32)tmpSg->dSgAddress;
1839 			pPRDTable[i].reserved = 0;
1840 			i++;
1841 		} while((tmpSg++->wSgFlag & SG_FLAG_EOT)==0);
1842 
1843 		pUdmaParams->prdLowAddr = pAdapter->prdTableDmaAddr +
1844 		    ((ULONG)pPRDTable - (ULONG)pAdapter->prdTableAddr);
1845 
1846 		if ((pUdmaParams->numOfSectors == 256) &&
1847 		    (pMvSataChannel->lba48Address == MV_FALSE)) {
1848 			pUdmaParams->numOfSectors = 0;
1849 		}
1850 
1851 		pCmd->uScratch.sata_param.prdAddr = (PVOID)pPRDTable;
1852 
1853 		result = mvSataQueueCommand(pMvSataAdapter, channel,
1854 		    &commandInfo);
1855 
1856 		if (result != MV_QUEUE_COMMAND_RESULT_OK) {
1857 queue_failed:
1858 			switch (result) {
1859 			case MV_QUEUE_COMMAND_RESULT_BAD_LBA_ADDRESS:
1860 				MV_ERROR("IAL Error: Edma Queue command "
1861 					 "failed. Bad LBA LBA[31:0](0x%08x)\n",
1862 					 pUdmaParams->lowLBAAddress);
1863 				pCmd->Result = RETURN_IDE_ERROR;
1864 				break;
1865 			case MV_QUEUE_COMMAND_RESULT_QUEUED_MODE_DISABLED:
1866 				MV_ERROR("IAL Error: Edma Queue command "
1867 					 "failed. EDMA disabled adapter %d "
1868 					 "channel %d\n",
1869 					 pMvSataAdapter->adapterId, channel);
1870 				mvSataEnableChannelDma(pMvSataAdapter,channel);
1871 				pCmd->Result = RETURN_IDE_ERROR;
1872 				break;
1873 			case MV_QUEUE_COMMAND_RESULT_FULL:
1874 				MV_ERROR("IAL Error: Edma Queue command "
1875 					 "failed. Queue is Full adapter %d "
1876 					 "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 "
1882 					 "failed. (Bad Params), pMvSataAdapter:"
1883 					 " %p,  pSataChannel: %p.\n",
1884 					 pMvSataAdapter,
1885 					 pMvSataAdapter->sataChannel[channel]);
1886 				pCmd->Result = RETURN_IDE_ERROR;
1887 				break;
1888 			default:
1889 				MV_ERROR("IAL Error: Bad result value (%d) "
1890 					 "from queue command\n", result);
1891 				pCmd->Result = RETURN_IDE_ERROR;
1892 			}
1893 			if(pPRDTable)
1894 				FreePRDTable(pAdapter, pPRDTable);
1895 			CallAfterReturn(_VBUS_P (DPC_PROC)pCmd->pfnCompletion,
1896 			    pCmd);
1897 		}
1898 		pDevice->QueueLength++;
1899 		return;
1900 
1901 	case IDE_COMMAND_VERIFY:
1902 		commandInfo.type = MV_QUEUED_COMMAND_TYPE_NONE_UDMA;
1903 		pNoUdmaParams->bufPtr = NULL;
1904 		pNoUdmaParams->callBack = CommandCompletionCB;
1905 		pNoUdmaParams->commandId = (MV_VOID_PTR)pCmd;
1906 		pNoUdmaParams->count = 0;
1907 		pNoUdmaParams->features = 0;
1908 		pNoUdmaParams->protocolType = MV_NON_UDMA_PROTOCOL_NON_DATA;
1909 
1910 		pCmd->uScratch.sata_param.cmd_priv = 1;
1911 		if (pMvSataChannel->lba48Address == MV_TRUE){
1912 			pNoUdmaParams->command =
1913 			    MV_ATA_COMMAND_READ_VERIFY_SECTORS_EXT;
1914 			pNoUdmaParams->isEXT = MV_TRUE;
1915 			pNoUdmaParams->lbaHigh =
1916 			    (MV_U16)((Lba & 0xff0000) >> 16);
1917 			pNoUdmaParams->lbaMid = (MV_U16)((Lba & 0xff00) >> 8);
1918 			pNoUdmaParams->lbaLow =
1919 			    (MV_U16)(((Lba & 0xff000000) >> 16)| (Lba & 0xff));
1920 			pNoUdmaParams->sectorCount = nSector;
1921 			pNoUdmaParams->device = 0x40;
1922 			result = mvSataQueueCommand(pMvSataAdapter, channel,
1923 			     &commandInfo);
1924 			if (result != MV_QUEUE_COMMAND_RESULT_OK) {
1925 				goto queue_failed;
1926 			}
1927 			return;
1928 		}
1929 		pNoUdmaParams->command = MV_ATA_COMMAND_READ_VERIFY_SECTORS;
1930 		pNoUdmaParams->isEXT = MV_FALSE;
1931 		pNoUdmaParams->lbaHigh = (MV_U16)((Lba & 0xff0000) >> 16);
1932 		pNoUdmaParams->lbaMid = (MV_U16)((Lba & 0xff00) >> 8);
1933 		pNoUdmaParams->lbaLow = (MV_U16)(Lba & 0xff);
1934 		pNoUdmaParams->sectorCount = 0xff & nSector;
1935 		pNoUdmaParams->device = (MV_U8)(0x40 |
1936 			((Lba & 0xf000000) >> 24));
1937 		pNoUdmaParams->callBack = CommandCompletionCB;
1938 		result = mvSataQueueCommand(pMvSataAdapter, channel,
1939 		     &commandInfo);
1940 		/*
1941 		 * FIXME: how about the commands already queued? but marvel
1942 		 * also forgets to consider this
1943 		 */
1944 		if (result != MV_QUEUE_COMMAND_RESULT_OK){
1945 			goto queue_failed;
1946 		}
1947 		break;
1948 	default:
1949 		pCmd->Result = RETURN_INVALID_REQUEST;
1950 		CallAfterReturn(_VBUS_P (DPC_PROC)pCmd->pfnCompletion, pCmd);
1951 		break;
1952 	}
1953 }
1954 
1955 /**********************************************************
1956  *
1957  *	Probe the hostadapter.
1958  *
1959  **********************************************************/
1960 static int
1961 hpt_probe(device_t dev)
1962 {
1963 	if ((pci_get_vendor(dev) == MV_SATA_VENDOR_ID) &&
1964 		(pci_get_device(dev) == MV_SATA_DEVICE_ID_5081
1965 #ifdef FOR_DEMO
1966 		|| pci_get_device(dev) == MV_SATA_DEVICE_ID_5080
1967 #endif
1968 		)) {
1969 		KdPrintI((CONTROLLER_NAME " found\n"));
1970 		device_set_desc(dev, CONTROLLER_NAME);
1971 		return 0;
1972 	}
1973 	else
1974 		return(ENXIO);
1975 }
1976 
1977 /***********************************************************
1978  *
1979  *      Auto configuration:  attach and init a host adapter.
1980  *
1981  ***********************************************************/
1982 static int
1983 hpt_attach(device_t dev)
1984 {
1985 	IAL_ADAPTER_T * pAdapter;
1986 	int rid;
1987 	union ccb *ccb;
1988 	struct cam_devq *devq;
1989 	struct cam_sim *hpt_vsim;
1990 
1991 	printf("%s Version %s\n", DRIVER_NAME, DRIVER_VERSION);
1992 
1993 	pAdapter = device_get_softc(dev);
1994 	pAdapter->hpt_dev = dev;
1995 
1996 	rid = init_adapter(pAdapter);
1997 	if (rid)
1998 		return rid;
1999 
2000 	rid = 0;
2001 	if ((pAdapter->hpt_irq = bus_alloc_resource(pAdapter->hpt_dev,
2002 	    SYS_RES_IRQ, &rid, 0, ~0ul, 1, RF_SHAREABLE | RF_ACTIVE)) == NULL){
2003 		hpt_printk(("can't allocate interrupt\n"));
2004 		return(ENXIO);
2005 	}
2006 
2007 	if(bus_setup_intr(pAdapter->hpt_dev, pAdapter->hpt_irq, INTR_TYPE_CAM,
2008 	    hpt_intr, pAdapter, &pAdapter->hpt_intr)) {
2009 		hpt_printk(("can't set up interrupt\n"));
2010 		free(pAdapter, M_DEVBUF);
2011 		return(ENXIO);
2012 	}
2013 
2014 #if 1
2015 	if ((ccb = malloc(sizeof(*ccb), M_DEVBUF, M_WAITOK | M_ZERO)) != NULL) {
2016 		ccb->ccb_h.pinfo.priority = 1;
2017 		ccb->ccb_h.pinfo.index = CAM_UNQUEUED_INDEX;
2018 	} else {
2019 		return ENOMEM;
2020 	}
2021 #endif
2022 	/*
2023 	 * Create the device queue for our SIM(s).
2024 	 */
2025 	if((devq = cam_simq_alloc(8/*MAX_QUEUE_COMM*/)) == NULL) {
2026 		KdPrint(("ENXIO\n"));
2027 		return ENOMEM;
2028 	}
2029 
2030 	/*
2031 	 * Construct our SIM entry
2032 	 */
2033 	if ((hpt_vsim = cam_sim_alloc(hpt_action, hpt_poll,__str(PROC_DIR_NAME),
2034 	    pAdapter, device_get_unit(pAdapter->hpt_dev), /*untagged*/1,
2035 	    /*tagged*/8,  devq)) == NULL) {
2036 		cam_simq_free(devq);
2037 		return ENOMEM;
2038 	}
2039 
2040 	if(xpt_bus_register(hpt_vsim, 0) != CAM_SUCCESS) {
2041 		cam_sim_free(hpt_vsim, /*free devq*/ TRUE);
2042 		hpt_vsim = NULL;
2043 		return ENXIO;
2044 	}
2045 
2046 	if(xpt_create_path(&pAdapter->path, /*periph */ NULL,
2047 	    cam_sim_path(hpt_vsim), CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD)
2048 	    != CAM_REQ_CMP) {
2049 		xpt_bus_deregister(cam_sim_path(hpt_vsim));
2050 		cam_sim_free(hpt_vsim, /*free_devq*/TRUE);
2051 		hpt_vsim = NULL;
2052 		return ENXIO;
2053 	}
2054 
2055 	xpt_setup_ccb(&(ccb->ccb_h), pAdapter->path, /*priority*/5);
2056 	ccb->ccb_h.func_code = XPT_SASYNC_CB;
2057 	ccb->csa.event_enable = AC_LOST_DEVICE;
2058 	ccb->csa.callback = hpt_async;
2059 	ccb->csa.callback_arg = hpt_vsim;
2060 	xpt_action((union ccb *)ccb);
2061 	free(ccb, M_DEVBUF);
2062 
2063 	if ((pAdapter->eh = EVENTHANDLER_REGISTER(shutdown_final, hpt_shutdown,
2064 	    dev, SHUTDOWN_PRI_DEFAULT)) == NULL)
2065 		device_printf(dev, "Shutdown event registrration failed\n");
2066 
2067 	return 0;
2068 }
2069 
2070 static int
2071 hpt_detach(device_t dev)
2072 {
2073 	return (EBUSY);
2074 }
2075 
2076 /***************************************************************
2077  * The poll function is used to simulate the interrupt when
2078  * the interrupt subsystem is not functioning.
2079  *
2080  ***************************************************************/
2081 static void
2082 hpt_poll(struct cam_sim *sim)
2083 {
2084 	hpt_intr((void *)cam_sim_softc(sim));
2085 }
2086 
2087 /****************************************************************
2088  *	Name:	hpt_intr
2089  *	Description:	Interrupt handler.
2090  ****************************************************************/
2091 static void
2092 hpt_intr(void *arg)
2093 {
2094 	IAL_ADAPTER_T *pAdapter = (IAL_ADAPTER_T *)arg;
2095 	intrmask_t oldspl;
2096 
2097 	 oldspl = lock_driver();
2098 	/* KdPrintI(("----- Entering Isr() -----\n")); */
2099 	if (mvSataInterruptServiceRoutine(&pAdapter->mvSataAdapter) == MV_TRUE){
2100 		_VBUS_INST(&pAdapter->VBus)
2101 		CheckPendingCall(_VBUS_P0);
2102 	}
2103 
2104 	/* KdPrintI(("----- Leaving Isr() -----\n")); */
2105 	unlock_driver(oldspl);
2106 }
2107 
2108 /**********************************************************
2109  * 			Asynchronous Events
2110  *********************************************************/
2111 #if (!defined(UNREFERENCED_PARAMETER))
2112 #define UNREFERENCED_PARAMETER(x) (void)(x)
2113 #endif
2114 
2115 static void
2116 hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path,
2117     void * arg)
2118 {
2119 	/* debug XXXX */
2120 	panic("Here");
2121 	UNREFERENCED_PARAMETER(callback_arg);
2122 	UNREFERENCED_PARAMETER(code);
2123 	UNREFERENCED_PARAMETER(path);
2124 	UNREFERENCED_PARAMETER(arg);
2125 
2126 }
2127 
2128 static void
2129 FlushAdapter(IAL_ADAPTER_T *pAdapter)
2130 {
2131 	int i;
2132 
2133 	hpt_printk(("flush all devices\n"));
2134 
2135 	/* flush all devices */
2136 	for (i=0; i<MAX_VDEVICE_PER_VBUS; i++) {
2137 		PVDevice pVDev = pAdapter->VBus.pVDevice[i];
2138 		if (pVDev)
2139 			fFlushVDev(pVDev);
2140 	}
2141 }
2142 
2143 static int
2144 hpt_shutdown(device_t dev)
2145 {
2146 	IAL_ADAPTER_T *pAdapter;
2147 
2148 	pAdapter = device_get_softc(dev);
2149 	if (pAdapter == NULL)
2150 		return (EINVAL);
2151 
2152 	EVENTHANDLER_DEREGISTER(shutdown_final, pAdapter->eh);
2153 	FlushAdapter(pAdapter);
2154 
2155 	return 0;
2156 }
2157 
2158 void
2159 Check_Idle_Call(IAL_ADAPTER_T *pAdapter)
2160 {
2161 	int i = 0;
2162 
2163 	_VBUS_INST(&pAdapter->VBus)
2164 
2165 	if (mWaitingForIdle(_VBUS_P0)) {
2166 		CheckIdleCall(_VBUS_P0);
2167 #ifdef SUPPORT_ARRAY
2168 		for(i = 0; i < MAX_ARRAY_PER_VBUS; i++){
2169 			PVDevice pArray;
2170 
2171 			if ((pArray = ArrayTables(i))->u.array.dArStamp == 0)
2172 				continue;
2173 			else if (pArray->u.array.rf_auto_rebuild) {
2174 				KdPrint(("auto rebuild.\n"));
2175 				pArray->u.array.rf_auto_rebuild = 0;
2176 				hpt_queue_dpc((HPT_DPC)hpt_rebuild_data_block,
2177 				    pAdapter, pArray, DUPLICATE);
2178 			}
2179 		}
2180 #endif
2181 	}
2182 	/* launch the awaiting commands blocked by mWaitingForIdle */
2183 	while(pAdapter->pending_Q!= NULL) {
2184 		_VBUS_INST(&pAdapter->VBus)
2185 		union ccb *ccb =
2186 		    (union ccb *)pAdapter->pending_Q->ccb_h.ccb_ccb_ptr;
2187 
2188 		hpt_free_ccb(&pAdapter->pending_Q, ccb);
2189 		CallAfterReturn(_VBUS_P (DPC_PROC)OsSendCommand, ccb);
2190 	}
2191 }
2192 
2193 static void
2194 ccb_done(union ccb *ccb)
2195 {
2196 	IAL_ADAPTER_T * pAdapter = (IAL_ADAPTER_T *)ccb->ccb_adapter;
2197 	KdPrintI(("ccb_done: ccb %p status %x", ccb, ccb->ccb_h.status));
2198 
2199 	xpt_done(ccb);
2200 
2201 	pAdapter->outstandingCommands--;
2202 
2203 	if (pAdapter->outstandingCommands == 0) {
2204 		if(DPC_Request_Nums == 0)
2205 			Check_Idle_Call(pAdapter);
2206 	}
2207 }
2208 
2209 /****************************************************************
2210  *	Name:	hpt_action
2211  *	Description:	Process a queued command from the CAM layer.
2212  *	Parameters:		sim - Pointer to SIM object
2213  *					ccb - Pointer to SCSI command structure.
2214  ****************************************************************/
2215 
2216 void
2217 hpt_action(struct cam_sim *sim, union ccb *ccb)
2218 {
2219 	intrmask_t oldspl;
2220 	IAL_ADAPTER_T * pAdapter = (IAL_ADAPTER_T *) cam_sim_softc(sim);
2221 	_VBUS_INST(&pAdapter->VBus)
2222 
2223 	ccb->ccb_adapter = pAdapter;
2224 
2225 	CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("hpt_action\n"));
2226 	KdPrint(("hpt_action(%lx,%lx{%x})\n", (u_long)sim, (u_long)ccb,
2227 	    ccb->ccb_h.func_code));
2228 
2229 	switch (ccb->ccb_h.func_code) {
2230 	case XPT_SCSI_IO:	/* Execute the requested I/O operation */
2231 		/* ccb->ccb_h.path_id is not our bus id - don't check it */
2232 
2233 		if (ccb->ccb_h.target_lun)	{
2234 			ccb->ccb_h.status = CAM_LUN_INVALID;
2235 			xpt_done(ccb);
2236 			return;
2237 		}
2238 		if (ccb->ccb_h.target_id >= MAX_VDEVICE_PER_VBUS ||
2239 			pAdapter->VBus.pVDevice[ccb->ccb_h.target_id]==0) {
2240 			ccb->ccb_h.status = CAM_TID_INVALID;
2241 			xpt_done(ccb);
2242 			return;
2243 		}
2244 
2245 		oldspl = lock_driver();
2246 		if (pAdapter->outstandingCommands==0 && DPC_Request_Nums==0)
2247 			Check_Idle_Call(pAdapter);
2248 
2249 		if (mWaitingForIdle(_VBUS_P0))
2250 			hpt_queue_ccb(&pAdapter->pending_Q, ccb);
2251 		else
2252 			OsSendCommand(_VBUS_P ccb);
2253 		unlock_driver(oldspl);
2254 
2255 		/* KdPrint(("leave scsiio\n")); */
2256 		break;
2257 
2258 	case XPT_RESET_BUS:
2259 		KdPrint(("reset bus\n"));
2260 		oldspl = lock_driver();
2261 		fResetVBus(_VBUS_P0);
2262 		unlock_driver(oldspl);
2263 		xpt_done(ccb);
2264 		break;
2265 
2266 	case XPT_RESET_DEV:	/* Bus Device Reset the specified SCSI device */
2267 	case XPT_EN_LUN:		/* Enable LUN as a target */
2268 	case XPT_TARGET_IO:		/* Execute target I/O request */
2269 	case XPT_ACCEPT_TARGET_IO:	/* Accept Host Target Mode CDB */
2270 	case XPT_CONT_TARGET_IO:	/* Continue Host Target I/O Connection*/
2271 	case XPT_ABORT:			/* Abort the specified CCB */
2272 	case XPT_TERM_IO:		/* Terminate the I/O process */
2273 		/* XXX Implement */
2274 		ccb->ccb_h.status = CAM_REQ_INVALID;
2275 		xpt_done(ccb);
2276 		break;
2277 
2278 	case XPT_GET_TRAN_SETTINGS:
2279 	case XPT_SET_TRAN_SETTINGS:
2280 		/* XXX Implement */
2281 		ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
2282 		xpt_done(ccb);
2283 		break;
2284 
2285 	case XPT_CALC_GEOMETRY:
2286 	{
2287 		struct	  ccb_calc_geometry *ccg;
2288 		u_int32_t size_mb;
2289 		u_int32_t secs_per_cylinder;
2290 
2291 		ccg = &ccb->ccg;
2292 		size_mb = ccg->volume_size / ((1024L*1024L) / ccg->block_size);
2293 
2294 		if (size_mb > 1024 ) {
2295 			ccg->heads = 255;
2296 			ccg->secs_per_track = 63;
2297 		} else {
2298 			ccg->heads = 64;
2299 			ccg->secs_per_track = 32;
2300 		}
2301 		secs_per_cylinder = ccg->heads * ccg->secs_per_track;
2302 		ccg->cylinders = ccg->volume_size / secs_per_cylinder;
2303 		ccb->ccb_h.status = CAM_REQ_CMP;
2304 		xpt_done(ccb);
2305 		break;
2306 	}
2307 
2308 	case XPT_PATH_INQ:		/* Path routing inquiry */
2309 	{
2310 		struct ccb_pathinq *cpi = &ccb->cpi;
2311 
2312 		cpi->version_num = 1; /* XXX??? */
2313 		cpi->hba_inquiry = PI_SDTR_ABLE;
2314 		cpi->target_sprt = 0;
2315 		/* Not necessary to reset bus */
2316 		cpi->hba_misc = PIM_NOBUSRESET;
2317 		cpi->hba_eng_cnt = 0;
2318 
2319 		cpi->max_target = MAX_VDEVICE_PER_VBUS;
2320 		cpi->max_lun = 0;
2321 		cpi->initiator_id = MAX_VDEVICE_PER_VBUS;
2322 
2323 		cpi->bus_id = cam_sim_bus(sim);
2324 		cpi->base_transfer_speed = 3300;
2325 		strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2326 		strncpy(cpi->hba_vid, "HPT   ", HBA_IDLEN);
2327 		strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
2328 		cpi->unit_number = cam_sim_unit(sim);
2329 		cpi->ccb_h.status = CAM_REQ_CMP;
2330 		xpt_done(ccb);
2331 		break;
2332 	}
2333 
2334 	default:
2335 		KdPrint(("invalid cmd\n"));
2336 		ccb->ccb_h.status = CAM_REQ_INVALID;
2337 		xpt_done(ccb);
2338 		break;
2339 	}
2340 	/* KdPrint(("leave hpt_action..............\n")); */
2341 }
2342 
2343 /* shall be called at lock_driver() */
2344 static void
2345 hpt_queue_ccb(union ccb **ccb_Q, union ccb *ccb)
2346 {
2347 	if(*ccb_Q == NULL)
2348 		ccb->ccb_h.ccb_ccb_ptr = ccb;
2349 	else {
2350 		ccb->ccb_h.ccb_ccb_ptr = (*ccb_Q)->ccb_h.ccb_ccb_ptr;
2351 		(*ccb_Q)->ccb_h.ccb_ccb_ptr = (char *)ccb;
2352 	}
2353 
2354 	*ccb_Q = ccb;
2355 }
2356 
2357 /* shall be called at lock_driver() */
2358 static void
2359 hpt_free_ccb(union ccb **ccb_Q, union ccb *ccb)
2360 {
2361 	union ccb *TempCCB;
2362 
2363 	TempCCB = *ccb_Q;
2364 
2365 	if(ccb->ccb_h.ccb_ccb_ptr == ccb)
2366 		/*it means SCpnt is the last one in CURRCMDs*/
2367 		*ccb_Q = NULL;
2368 	else {
2369 		while(TempCCB->ccb_h.ccb_ccb_ptr != (char *)ccb)
2370 			TempCCB = (union ccb *)TempCCB->ccb_h.ccb_ccb_ptr;
2371 
2372 		TempCCB->ccb_h.ccb_ccb_ptr = ccb->ccb_h.ccb_ccb_ptr;
2373 
2374 		if(*ccb_Q == ccb)
2375 			*ccb_Q = TempCCB;
2376 	}
2377 }
2378 
2379 #ifdef SUPPORT_ARRAY
2380 /***************************************************************************
2381  * Function:     hpt_worker_thread
2382  * Description:  Do background rebuilding. Execute in kernel thread context.
2383  * Returns:      None
2384  ***************************************************************************/
2385 static void hpt_worker_thread(void)
2386 {
2387 	intrmask_t oldspl;
2388 
2389 	for(;;)	{
2390 		while (DpcQueue_First!=DpcQueue_Last) {
2391 			ST_HPT_DPC p;
2392 			IAL_ADAPTER_T *pAdapter;
2393 			PVDevice      pArray;
2394 			PVBus         _vbus_p;
2395 			int i;
2396 
2397 			oldspl = lock_driver();
2398 			p = DpcQueue[DpcQueue_First];
2399 			DpcQueue_First++;
2400 			DpcQueue_First %= MAX_DPC;
2401 			DPC_Request_Nums++;
2402 			unlock_driver(oldspl);
2403 			p.dpc(p.pAdapter, p.arg, p.flags);
2404 
2405 			oldspl = lock_driver();
2406 			DPC_Request_Nums--;
2407 			/*
2408 			 * since we may have prevented Check_Idle_Call, do it
2409 			 * here
2410 			 */
2411 			if (DPC_Request_Nums==0) {
2412 				if (p.pAdapter->outstandingCommands == 0) {
2413 					_VBUS_INST(&p.pAdapter->VBus);
2414 					Check_Idle_Call(p.pAdapter);
2415 					CheckPendingCall(_VBUS_P0);
2416 				}
2417 			}
2418 			unlock_driver(oldspl);
2419 			if (SIGISMEMBER(curproc->p_siglist, SIGSTOP) == 0)
2420 				continue;
2421 
2422 			/* abort rebuilding process. */
2423 			pAdapter = gIal_Adapter;
2424 			while (pAdapter != 0) {
2425 				_vbus_p = &pAdapter->VBus;
2426 				for (i = 0; i < MAX_ARRAY_PER_VBUS;i++){
2427 					if ((pArray=ArrayTables(i))->u.array.dArStamp==0)
2428 						continue;
2429 					if (pArray->u.array.rf_rebuilding ||
2430 					    pArray->u.array.rf_verifying ||
2431 					    pArray->u.array.rf_initializing) {
2432 						pArray->u.array.rf_abort_rebuild = 1;
2433 					}
2434 				}
2435 				pAdapter = pAdapter->next;
2436 			}
2437 		}
2438 
2439 #ifdef DEBUG
2440 		if (SIGISMEMBER(curproc->p_siglist, SIGSTOP))
2441 			tsleep(hpt_worker_thread, PPAUSE, "hptrdy", 2 * hz);
2442 #endif
2443 #if (__FreeBSD_version >= 500043)
2444 		kthread_suspend_check(curproc);
2445 #else
2446 		kproc_suspend_loop(curproc);
2447 #endif
2448 		/* wait for something to do */
2449 		tsleep(hpt_worker_thread, PPAUSE, "hptrdy", 2 * hz);
2450 	}
2451 }
2452 
2453 static struct proc *hptdaemonproc;
2454 static struct kproc_desc hpt_kp = {
2455 	"hpt_wt",
2456 	hpt_worker_thread,
2457 	&hptdaemonproc
2458 };
2459 
2460 static void
2461 launch_worker_thread(void)
2462 {
2463 	IAL_ADAPTER_T *pAdapTemp;
2464 
2465 	kproc_start(&hpt_kp);
2466 
2467 	for (pAdapTemp = gIal_Adapter; pAdapTemp; pAdapTemp = pAdapTemp->next) {
2468 
2469 		_VBUS_INST(&pAdapTemp->VBus)
2470 		int i;
2471 		PVDevice pVDev;
2472 
2473 		for(i = 0; i < MAX_ARRAY_PER_VBUS; i++)
2474 			if ((pVDev=ArrayTables(i))->u.array.dArStamp==0)
2475 				continue;
2476 			if (pVDev->u.array.rf_need_rebuild &&
2477 			    !pVDev->u.array.rf_rebuilding) {
2478 				hpt_queue_dpc((HPT_DPC)hpt_rebuild_data_block,
2479 				    pAdapTemp, pVDev,
2480 				    (UCHAR)((pVDev->u.array.CriticalMembers ||
2481 				    pVDev->VDeviceType == VD_RAID_1) ?
2482 				    DUPLICATE : REBUILD_PARITY));
2483 			    }
2484 	}
2485 
2486 	/*
2487 	 * hpt_worker_thread needs to be suspended after shutdown sync, when fs
2488 	 * sync finished.
2489 	 */
2490 #if (__FreeBSD_version < 500043)
2491 	EVENTHANDLER_REGISTER(shutdown_post_sync, shutdown_kproc,
2492 	    hptdaemonproc, SHUTDOWN_PRI_FIRST);
2493 #else
2494 	EVENTHANDLER_REGISTER(shutdown_post_sync, kproc_shutdown,
2495 	    hptdaemonproc, SHUTDOWN_PRI_FIRST);
2496 #endif
2497 }
2498 SYSINIT(hptwt, SI_SUB_KTHREAD_IDLE, SI_ORDER_FIRST, launch_worker_thread, NULL);
2499 
2500 #endif /* SUPPORT_ARRAY */
2501 
2502 /* build sgl with merge function */
2503 #define ON64KBOUNDARY(x) (((ULONG_PTR)(x) & 0xFFFF) == 0)
2504 
2505 /* XXX */
2506 /* #define NOTNEIGHBORPAGE(x, y) (max(x, y) - min(x, y) > PAGE_SIZE) */
2507 #define NOTNEIGHBORPAGE(highvaddr, lowvaddr)	\
2508     ((ULONG_PTR)(highvaddr) - (ULONG_PTR)(lowvaddr) != PAGE_SIZE)
2509 
2510 
2511 /********************************************************************************/
2512 
2513 static void
2514 hptmv_buffer_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
2515 {
2516 	FPSCAT_GATH pSg;
2517 	int idx;
2518 
2519 	if (error || nsegs == 0) {
2520 		panic("busdma bewm");
2521 		return;
2522 	}
2523 
2524 	pSg = *(FPSCAT_GATH *)arg;
2525 
2526 	for (idx = 0; idx < nsegs; idx++) {
2527 		pSg[idx].dSgAddress = (ULONG_PTR)segs[idx].ds_addr;
2528 		pSg[idx].wSgSize = segs[idx].ds_len;
2529 		pSg[idx].wSgFlag = 0;
2530 	}
2531 	pSg[idx - 1].wSgFlag = SG_FLAG_EOT;
2532 
2533 	return;
2534 }
2535 
2536 static int HPTLIBAPI
2537 fOsBuildSgl(_VBUS_ARG PCommand pCmd, FPSCAT_GATH pSg, int logical)
2538 {
2539 	IAL_ADAPTER_T *pAdapter;
2540 	pPrivCommand prvCmd;
2541 	union ccb *ccb;
2542 	struct ccb_hdr *ccb_h;
2543 	struct ccb_scsiio *csio;
2544 	bus_dma_segment_t *sgList;
2545 	int error;
2546 
2547 	prvCmd = pCmd->pOrgCommand;
2548 	pAdapter = prvCmd->pAdapter;
2549 	ccb = prvCmd->ccb;
2550 	ccb_h = &ccb->ccb_h;
2551 	csio = &ccb->csio;
2552 	sgList = (bus_dma_segment_t *)(csio->data_ptr);
2553 
2554 	if ((ccb_h->flags & CAM_DIR_MASK) == CAM_DIR_NONE)
2555 		return TRUE;
2556 
2557 	if ((ccb_h->flags & CAM_SCATTER_VALID) != 0) {
2558 		if((ccb_h->flags & CAM_DATA_PHYS) != 0)
2559 			panic(KMSG_LEADING "physical address unsupported!");
2560 
2561 		hptmv_buffer_callback(&pSg, sgList, csio->sglist_cnt, 0);
2562 		return TRUE;
2563 	}
2564 
2565 	if (logical) {
2566 		if ((ccb_h->flags & CAM_DATA_PHYS) != 0)
2567 			panic(KMSG_LEADING "physical address unsupported\n");
2568 
2569 		pSg->dSgAddress = (ULONG_PTR)csio->data_ptr;
2570 		pSg->wSgSize = (USHORT)csio->dxfer_len;
2571 		pSg->wSgFlag = SG_FLAG_EOT;
2572 		return TRUE;
2573 	}
2574 
2575 	KdPrint(("use sgl (physical) ...........\n"));
2576 
2577 	/*
2578 	 * XXX Hack to make this work with PAE.  It will fail under
2579 	 * heavy load.
2580 	 */
2581 	error = bus_dmamap_load(pAdapter->buf_dmat, prvCmd->buf_map,
2582 	    csio->data_ptr, csio->dxfer_len, hptmv_buffer_callback, &pSg,
2583 	    BUS_DMA_NOWAIT);
2584 
2585 	if (error) {
2586 		printf("bus_dmamap_load failed error= %d\n", error);
2587 		return FALSE;
2588 	}
2589 
2590 /*#ifdef DEBUG
2591 	do {
2592 		int size, i = 0;
2593 		KdPrintI(("sg[%d]:0x%lx %d\n", i++, pSg[i].dSgAddress,
2594 		    pSg[i].wSgSize));
2595 		size = pSg->wSgSize;
2596 		if (pSg[i].wSgFlag & SG_FLAG_EOT)
2597 			break;
2598 	} while (i<17);
2599 #endif*/
2600 
2601 	if ((ccb_h->flags & CAM_DIR_MASK) == CAM_DIR_IN) {
2602 		bus_dmamap_sync(pAdapter->buf_dmat, prvCmd->buf_map,
2603 		    BUS_DMASYNC_PREREAD);
2604 	} else {
2605 		bus_dmamap_sync(pAdapter->buf_dmat, prvCmd->buf_map,
2606 		    BUS_DMASYNC_PREWRITE);
2607 	}
2608 
2609 	return TRUE;
2610 }
2611 
2612 /*******************************************************************************/
2613 ULONG HPTLIBAPI
2614 GetStamp(void)
2615 {
2616 	ULONG stamp;
2617 
2618 	/*
2619 	 * the system variable, ticks, can't be used since it hasn't yet been active
2620 	 * when our driver starts (ticks==0, it's a invalid stamp value)
2621 	 */
2622 	do {
2623 		stamp = random();
2624 	} while (stamp==0);
2625 
2626 	return stamp;
2627 }
2628 
2629 
2630 static void
2631 SetInquiryData(PINQUIRYDATA inquiryData, PVDevice pVDev)
2632 {
2633 	int i;
2634 	IDENTIFY_DATA2 *pIdentify;
2635 
2636 	pIdentify = (IDENTIFY_DATA2*)pVDev->u.disk.mv->identifyDevice;
2637 	inquiryData->DeviceType = T_DIRECT; /*DIRECT_ACCESS_DEVICE*/
2638 	inquiryData->AdditionalLength = (UCHAR)(sizeof(INQUIRYDATA) - 5);
2639 #ifndef SERIAL_CMDS
2640 	inquiryData->CommandQueue = 1;
2641 #endif
2642 
2643 	switch(pVDev->VDeviceType) {
2644 	case VD_SINGLE_DISK:
2645 	case VD_ATAPI:
2646 	case VD_REMOVABLE:
2647 		/* Set the removable bit, if applicable. */
2648 		if ((pVDev->u.disk.df_removable_drive) ||
2649 		    (pIdentify->GeneralConfiguration & 0x80))
2650 			inquiryData->RemovableMedia = 1;
2651 
2652 		/* Fill in vendor identification fields. */
2653 		for (i = 0; i < 20; i += 2) {
2654 			inquiryData->VendorId[i] =
2655 			    ((PUCHAR)pIdentify->ModelNumber)[i + 1];
2656 			inquiryData->VendorId[i+1] =
2657 			    ((PUCHAR)pIdentify->ModelNumber)[i];
2658 
2659 		}
2660 
2661 		/* Initialize unused portion of product id. */
2662 		for (i = 0; i < 4; i++) inquiryData->ProductId[12+i] = ' ';
2663 
2664 		/* firmware revision */
2665 		for (i = 0; i < 4; i += 2) {
2666 			inquiryData->ProductRevisionLevel[i] =
2667 			    ((PUCHAR)pIdentify->FirmwareRevision)[i+1];
2668 			inquiryData->ProductRevisionLevel[i+1] =
2669 			    ((PUCHAR)pIdentify->FirmwareRevision)[i];
2670 		}
2671 		break;
2672 	default:
2673 		memcpy(&inquiryData->VendorId, "RR182x  ", 8);
2674 #ifdef SUPPORT_ARRAY
2675 		switch(pVDev->VDeviceType) {
2676 		case VD_RAID_0:
2677 			if ((pVDev->u.array.pMember[0] &&
2678 			    mIsArray(pVDev->u.array.pMember[0])) ||
2679 			    (pVDev->u.array.pMember[1] &&
2680 			    mIsArray(pVDev->u.array.pMember[1])))
2681 				memcpy(&inquiryData->ProductId,
2682 				    "RAID 1/0 Array  ", 16);
2683 			else
2684 				memcpy(&inquiryData->ProductId,
2685 				    "RAID 0 Array    ", 16);
2686 			break;
2687 		case VD_RAID_1:
2688 			if ((pVDev->u.array.pMember[0] &&
2689 			    mIsArray(pVDev->u.array.pMember[0])) ||
2690 			    (pVDev->u.array.pMember[1] &&
2691 			    mIsArray(pVDev->u.array.pMember[1])))
2692 				memcpy(&inquiryData->ProductId,
2693 				    "RAID 0/1 Array  ", 16);
2694 			else
2695 				memcpy(&inquiryData->ProductId,
2696 				    "RAID 1 Array    ", 16);
2697 			break;
2698 		case VD_RAID_5:
2699 			memcpy(&inquiryData->ProductId, "RAID 5 Array    ", 16);
2700 			break;
2701 		case VD_JBOD:
2702 			memcpy(&inquiryData->ProductId, "JBOD Array      ", 16);
2703 			break;
2704 		}
2705 #endif
2706 		memcpy(&inquiryData->ProductRevisionLevel, "3.00", 4);
2707 		break;
2708 	}
2709 }
2710 
2711 static void
2712 hpt_timeout(void *arg)
2713 {
2714 	_VBUS_INST(&((IAL_ADAPTER_T*)((union ccb *)arg)->ccb_adapter)->VBus)
2715 	intrmask_t oldspl;
2716 
2717 	oldspl = lock_driver();
2718 	fResetVBus(_VBUS_P0);
2719 	unlock_driver(oldspl);
2720 }
2721 
2722 static void HPTLIBAPI
2723 OsSendCommand(_VBUS_ARG union ccb *ccb)
2724 {
2725 	IAL_ADAPTER_T *pAdapter;
2726 	struct ccb_hdr *ccb_h;
2727 	struct ccb_scsiio *csio;
2728 	PVDevice pVDev;
2729 
2730 	pAdapter = (IAL_ADAPTER_T *)ccb->ccb_adapter;
2731 	ccb_h = &ccb->ccb_h;
2732 	csio = &ccb->csio;
2733 	pVDev = pAdapter->VBus.pVDevice[ccb_h->target_id];
2734 
2735 	KdPrintI(("OsSendCommand: ccb %p cdb %x-%x-%x\n",
2736 		ccb,
2737 		*(ULONG *)&ccb->csio.cdb_io.cdb_bytes[0],
2738 		*(ULONG *)&ccb->csio.cdb_io.cdb_bytes[4],
2739 		*(ULONG *)&ccb->csio.cdb_io.cdb_bytes[8]
2740 	));
2741 
2742 	pAdapter->outstandingCommands++;
2743 
2744 	if (pVDev == NULL || pVDev->vf_online == 0) {
2745 		ccb->ccb_h.status = CAM_REQ_INVALID;
2746 		ccb_done(ccb);
2747 		goto Command_Complished;
2748 	}
2749 
2750 	switch(ccb->csio.cdb_io.cdb_bytes[0])
2751 	{
2752 	case TEST_UNIT_READY:
2753 	case START_STOP_UNIT:
2754 	case SYNCHRONIZE_CACHE:
2755 		/* FALLTHROUGH */
2756 		ccb->ccb_h.status = CAM_REQ_CMP;
2757 		break;
2758 
2759 	case INQUIRY:
2760 		ZeroMemory(ccb->csio.data_ptr, ccb->csio.dxfer_len);
2761 		SetInquiryData((PINQUIRYDATA)ccb->csio.data_ptr, pVDev);
2762 		ccb_h->status = CAM_REQ_CMP;
2763 		break;
2764 
2765 	case READ_CAPACITY:
2766 	{
2767 		UCHAR swip[4];
2768 		/* Claim 512 byte blocks (big-endian). */
2769 		((PREAD_CAPACITY_DATA)csio->data_ptr)->BytesPerBlock = 0x20000;
2770 		*(ULONG*)swip = pVDev->VDeviceCapacity - 1;
2771 		((PREAD_CAPACITY_DATA)csio->data_ptr)->LogicalBlockAddress =
2772 			(swip[0] << 24) |  (swip[1] << 16) | (swip[2] << 8) | swip[3];
2773 		ccb_h->status = CAM_REQ_CMP;
2774 		break;
2775 	}
2776 
2777 	case READ_6:
2778 	case WRITE_6:
2779 	case READ_10:
2780 	case WRITE_10:
2781 	case 0x13:
2782 	case 0x2f:
2783 	{
2784 		UCHAR Cdb[16];
2785 		UCHAR CdbLength;
2786 		_VBUS_INST(pVDev->pVBus)
2787 		PCommand pCmd;
2788 
2789 		pCmd = AllocateCommand(_VBUS_P0);
2790 		HPT_ASSERT(pCmd);
2791 
2792 		CdbLength = csio->cdb_len;
2793 		if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) {
2794 			if ((ccb->ccb_h.flags & CAM_CDB_PHYS) == 0) {
2795 				bcopy(csio->cdb_io.cdb_ptr, Cdb, CdbLength);
2796 			} else {
2797 				KdPrintE(("ERROR!!!\n"));
2798 				ccb->ccb_h.status = CAM_REQ_INVALID;
2799 				break;
2800 			}
2801 		} else {
2802 			bcopy(csio->cdb_io.cdb_bytes, Cdb, CdbLength);
2803 		}
2804 
2805 		pCmd->pOrgCommand = AllocPrivCommand(pAdapter);
2806 		if (pCmd->pOrgCommand == NULL)
2807 			panic("command leak!");
2808 		((pPrivCommand)(pCmd->pOrgCommand))->ccb = ccb;
2809 		pCmd->pVDevice = pVDev;
2810 		pCmd->pfnCompletion = fOsCommandDone;
2811 		pCmd->pfnBuildSgl = fOsBuildSgl;
2812 
2813 		switch (Cdb[0]) {
2814 		case READ_6:
2815 		case WRITE_6:
2816 		case 0x13:
2817 			pCmd->uCmd.Ide.Lba =  ((ULONG)Cdb[1] << 16) |
2818 			    ((ULONG)Cdb[2] << 8) | (ULONG)Cdb[3];
2819 			pCmd->uCmd.Ide.nSectors = (USHORT) Cdb[4];
2820 			break;
2821 		default:
2822 			pCmd->uCmd.Ide.Lba = (ULONG)Cdb[5] |
2823 			    ((ULONG)Cdb[4] << 8) | ((ULONG)Cdb[3] << 16) |
2824 			    ((ULONG)Cdb[2] << 24);
2825 			pCmd->uCmd.Ide.nSectors = (USHORT) Cdb[8] |
2826 			    ((USHORT)Cdb[7]<<8);
2827 			break;
2828 		}
2829 
2830 		switch (Cdb[0]) {
2831 		case READ_6:
2832 		case READ_10:
2833 			pCmd->uCmd.Ide.Command = IDE_COMMAND_READ;
2834 			pCmd->cf_data_in = 1;
2835 			break;
2836 
2837 		case WRITE_6:
2838 		case WRITE_10:
2839 			pCmd->uCmd.Ide.Command = IDE_COMMAND_WRITE;
2840 			pCmd->cf_data_out = 1;
2841 			break;
2842 		case 0x13:
2843 		case 0x2f:
2844 			pCmd->uCmd.Ide.Command = IDE_COMMAND_VERIFY;
2845 			break;
2846 		}
2847 
2848 		ccb->ccb_h.timeout_ch = timeout(hpt_timeout, (caddr_t)ccb, 20*hz);
2849 
2850 		pVDev->pfnSendCommand(_VBUS_P pCmd);
2851 		goto Command_Complished;
2852 	}
2853 
2854 	default:
2855 		ccb->ccb_h.status = CAM_REQ_INVALID;
2856 		break;
2857 	}
2858 	ccb_done(ccb);
2859 Command_Complished:
2860 	CheckPendingCall(_VBUS_P0);
2861 	return;
2862 }
2863 
2864 static void HPTLIBAPI
2865 fOsCommandDone(_VBUS_ARG PCommand pCmd)
2866 {
2867 	IAL_ADAPTER_T *pAdapter;
2868 	pPrivCommand prvCmd;
2869 	union ccb *ccb;
2870 
2871 	prvCmd = pCmd->pOrgCommand;
2872 	pAdapter = prvCmd->pAdapter;
2873 	ccb = prvCmd->ccb;
2874 
2875 	KdPrint(("fOsCommandDone(%p, %d)", pCmd, pCmd->Result));
2876 
2877 	untimeout(hpt_timeout, (caddr_t)ccb, ccb->ccb_h.timeout_ch);
2878 
2879 	switch(pCmd->Result) {
2880 	case RETURN_SUCCESS:
2881 		ccb->ccb_h.status = CAM_REQ_CMP;
2882 		break;
2883 	case RETURN_BAD_DEVICE:
2884 		ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2885 		break;
2886 	case RETURN_DEVICE_BUSY:
2887 		ccb->ccb_h.status = CAM_BUSY;
2888 		break;
2889 	case RETURN_INVALID_REQUEST:
2890 		ccb->ccb_h.status = CAM_REQ_INVALID;
2891 		break;
2892 	case RETURN_SELECTION_TIMEOUT:
2893 		ccb->ccb_h.status = CAM_SEL_TIMEOUT;
2894 		break;
2895 	case RETURN_RETRY:
2896 		ccb->ccb_h.status = CAM_BUSY;
2897 		break;
2898 	default:
2899 		ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR;
2900 		break;
2901 	}
2902 
2903 	if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
2904 		bus_dmamap_sync(pAdapter->buf_dmat, prvCmd->buf_map,
2905 		    BUS_DMASYNC_POSTREAD);
2906 	} else {
2907 		bus_dmamap_sync(pAdapter->buf_dmat, prvCmd->buf_map,
2908 		    BUS_DMASYNC_POSTWRITE);
2909 	}
2910 	bus_dmamap_unload(pAdapter->buf_dmat, prvCmd->buf_map);
2911 
2912 	FreePrivCommand(pAdapter, prvCmd);
2913 	FreeCommand(_VBUS_P pCmd);
2914 	ccb_done(ccb);
2915 }
2916 
2917 int
2918 hpt_queue_dpc(HPT_DPC dpc, IAL_ADAPTER_T * pAdapter, void *arg, UCHAR flags)
2919 {
2920 	int p;
2921 
2922 	p = (DpcQueue_Last + 1) % MAX_DPC;
2923 	if (p==DpcQueue_First) {
2924 		KdPrint(("DPC Queue full!\n"));
2925 		return -1;
2926 	}
2927 
2928 	DpcQueue[DpcQueue_Last].dpc = dpc;
2929 	DpcQueue[DpcQueue_Last].pAdapter = pAdapter;
2930 	DpcQueue[DpcQueue_Last].arg = arg;
2931 	DpcQueue[DpcQueue_Last].flags = flags;
2932 	DpcQueue_Last = p;
2933 
2934 	return 0;
2935 }
2936 
2937 #ifdef _RAID5N_
2938 /*
2939  * Allocate memory above 16M, otherwise we may eat all low memory for ISA
2940  * devices.
2941  *
2942  * Busdma should be used here, not contigmalloc/free.  However, this API
2943  * will need to be changed to use it effective.
2944  */
2945 void
2946 *os_alloc_page(_VBUS_ARG0)
2947 {
2948 	return (void *)contigmalloc(0x1000, M_DEVBUF, M_NOWAIT, 0x1000000,
2949 	    0xffffffff, PAGE_SIZE, 0);
2950 }
2951 void
2952 *os_alloc_dma_page(_VBUS_ARG0)
2953 {
2954 	return (void *)contigmalloc(0x1000, M_DEVBUF, M_NOWAIT, 0x1000000,
2955 	    0xffffffff, PAGE_SIZE, 0);
2956 }
2957 
2958 /*
2959  * The next two are not used right now.
2960  */
2961 void
2962 os_free_page(_VBUS_ARG void *p)
2963 {
2964 	contigfree(p, 0x1000, M_DEVBUF);
2965 }
2966 
2967 void
2968 os_free_dma_page(_VBUS_ARG void *p)
2969 {
2970 	contigfree(p, 0x1000, M_DEVBUF);
2971 }
2972 
2973 void
2974 DoXor1(ULONG *p0, ULONG *p1, ULONG *p2, UINT nBytes)
2975 {
2976 	UINT i;
2977 	for (i = 0; i < nBytes / 4; i++)
2978 		*p0++ = *p1++ ^ *p2++;
2979 }
2980 
2981 void
2982 DoXor2(ULONG *p0, ULONG *p2, UINT nBytes)
2983 {
2984 	UINT i;
2985 	for (i = 0; i < nBytes / 4; i++)
2986 		*p0++ ^= *p2++;
2987 }
2988 #endif
2989