xref: /freebsd/sys/dev/arcmsr/arcmsr.c (revision e17f5b1d)
1 /*
2 ********************************************************************************
3 **        OS    : FreeBSD
4 **   FILE NAME  : arcmsr.c
5 **        BY    : Erich Chen, Ching Huang
6 **   Description: SCSI RAID Device Driver for
7 **                ARECA (ARC11XX/ARC12XX/ARC13XX/ARC16XX/ARC188x)
8 **                SATA/SAS RAID HOST Adapter
9 ********************************************************************************
10 ********************************************************************************
11 **
12 ** SPDX-License-Identifier: BSD-3-Clause
13 **
14 ** Copyright (C) 2002 - 2012, Areca Technology Corporation All rights reserved.
15 **
16 ** Redistribution and use in source and binary forms, with or without
17 ** modification, are permitted provided that the following conditions
18 ** are met:
19 ** 1. Redistributions of source code must retain the above copyright
20 **    notice, this list of conditions and the following disclaimer.
21 ** 2. Redistributions in binary form must reproduce the above copyright
22 **    notice, this list of conditions and the following disclaimer in the
23 **    documentation and/or other materials provided with the distribution.
24 ** 3. The name of the author may not be used to endorse or promote products
25 **    derived from this software without specific prior written permission.
26 **
27 ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
28 ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
29 ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
30 ** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
31 ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT
32 ** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
33 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY
34 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
35 **(INCLUDING NEGLIGENCE OR OTHERWISE)ARISING IN ANY WAY OUT OF THE USE OF
36 ** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 ********************************************************************************
38 ** History
39 **
40 **    REV#         DATE         NAME        DESCRIPTION
41 ** 1.00.00.00   03/31/2004  Erich Chen      First release
42 ** 1.20.00.02   11/29/2004  Erich Chen      bug fix with arcmsr_bus_reset when PHY error
43 ** 1.20.00.03   04/19/2005  Erich Chen      add SATA 24 Ports adapter type support
44 **                                          clean unused function
45 ** 1.20.00.12   09/12/2005  Erich Chen      bug fix with abort command handling,
46 **                                          firmware version check
47 **                                          and firmware update notify for hardware bug fix
48 **                                          handling if none zero high part physical address
49 **                                          of srb resource
50 ** 1.20.00.13   08/18/2006  Erich Chen      remove pending srb and report busy
51 **                                          add iop message xfer
52 **                                          with scsi pass-through command
53 **                                          add new device id of sas raid adapters
54 **                                          code fit for SPARC64 & PPC
55 ** 1.20.00.14   02/05/2007  Erich Chen      bug fix for incorrect ccb_h.status report
56 **                                          and cause g_vfs_done() read write error
57 ** 1.20.00.15   10/10/2007  Erich Chen      support new RAID adapter type ARC120x
58 ** 1.20.00.16   10/10/2009  Erich Chen      Bug fix for RAID adapter type ARC120x
59 **                                          bus_dmamem_alloc() with BUS_DMA_ZERO
60 ** 1.20.00.17   07/15/2010  Ching Huang     Added support ARC1880
61 **                                          report CAM_DEV_NOT_THERE instead of CAM_SEL_TIMEOUT when device failed,
62 **                                          prevent cam_periph_error removing all LUN devices of one Target id
63 **                                          for any one LUN device failed
64 ** 1.20.00.18   10/14/2010  Ching Huang     Fixed "inquiry data fails comparion at DV1 step"
65 **              10/25/2010  Ching Huang     Fixed bad range input in bus_alloc_resource for ADAPTER_TYPE_B
66 ** 1.20.00.19   11/11/2010  Ching Huang     Fixed arcmsr driver prevent arcsas support for Areca SAS HBA ARC13x0
67 ** 1.20.00.20   12/08/2010  Ching Huang     Avoid calling atomic_set_int function
68 ** 1.20.00.21   02/08/2011  Ching Huang     Implement I/O request timeout
69 **              02/14/2011  Ching Huang     Modified pktRequestCount
70 ** 1.20.00.21   03/03/2011  Ching Huang     if a command timeout, then wait its ccb back before free it
71 ** 1.20.00.22   07/04/2011  Ching Huang     Fixed multiple MTX panic
72 ** 1.20.00.23   10/28/2011  Ching Huang     Added TIMEOUT_DELAY in case of too many HDDs need to start
73 ** 1.20.00.23   11/08/2011  Ching Huang     Added report device transfer speed
74 ** 1.20.00.23   01/30/2012  Ching Huang     Fixed Request requeued and Retrying command
75 ** 1.20.00.24   06/11/2012  Ching Huang     Fixed return sense data condition
76 ** 1.20.00.25   08/17/2012  Ching Huang     Fixed hotplug device no function on type A adapter
77 ** 1.20.00.26   12/14/2012  Ching Huang     Added support ARC1214,1224,1264,1284
78 ** 1.20.00.27   05/06/2013  Ching Huang     Fixed out standing cmd full on ARC-12x4
79 ** 1.20.00.28   09/13/2013  Ching Huang     Removed recursive mutex in arcmsr_abort_dr_ccbs
80 ** 1.20.00.29   12/18/2013  Ching Huang     Change simq allocation number, support ARC1883
81 ** 1.30.00.00   11/30/2015  Ching Huang     Added support ARC1203
82 ** 1.40.00.00   07/11/2017  Ching Huang     Added support ARC1884
83 ** 1.40.00.01   10/30/2017  Ching Huang     Fixed release memory resource
84 ******************************************************************************************
85 */
86 
87 #include <sys/cdefs.h>
88 __FBSDID("$FreeBSD$");
89 
90 #if 0
91 #define ARCMSR_DEBUG1			1
92 #endif
93 #include <sys/param.h>
94 #include <sys/systm.h>
95 #include <sys/malloc.h>
96 #include <sys/kernel.h>
97 #include <sys/bus.h>
98 #include <sys/queue.h>
99 #include <sys/stat.h>
100 #include <sys/devicestat.h>
101 #include <sys/kthread.h>
102 #include <sys/module.h>
103 #include <sys/proc.h>
104 #include <sys/lock.h>
105 #include <sys/sysctl.h>
106 #include <sys/poll.h>
107 #include <sys/ioccom.h>
108 #include <vm/vm.h>
109 #include <vm/vm_param.h>
110 #include <vm/pmap.h>
111 
112 #include <isa/rtc.h>
113 
114 #include <machine/bus.h>
115 #include <machine/resource.h>
116 #include <machine/atomic.h>
117 #include <sys/conf.h>
118 #include <sys/rman.h>
119 
120 #include <cam/cam.h>
121 #include <cam/cam_ccb.h>
122 #include <cam/cam_sim.h>
123 #include <cam/cam_periph.h>
124 #include <cam/cam_xpt_periph.h>
125 #include <cam/cam_xpt_sim.h>
126 #include <cam/cam_debug.h>
127 #include <cam/scsi/scsi_all.h>
128 #include <cam/scsi/scsi_message.h>
129 /*
130 **************************************************************************
131 **************************************************************************
132 */
133 #include <sys/selinfo.h>
134 #include <sys/mutex.h>
135 #include <sys/endian.h>
136 #include <dev/pci/pcivar.h>
137 #include <dev/pci/pcireg.h>
138 
139 #define arcmsr_callout_init(a)	callout_init(a, /*mpsafe*/1);
140 
141 #define ARCMSR_DRIVER_VERSION	"arcmsr version 1.40.00.01 2017-10-30"
142 #include <dev/arcmsr/arcmsr.h>
143 /*
144 **************************************************************************
145 **************************************************************************
146 */
147 static void arcmsr_free_srb(struct CommandControlBlock *srb);
148 static struct CommandControlBlock *arcmsr_get_freesrb(struct AdapterControlBlock *acb);
149 static u_int8_t arcmsr_seek_cmd2abort(union ccb *abortccb);
150 static int arcmsr_probe(device_t dev);
151 static int arcmsr_attach(device_t dev);
152 static int arcmsr_detach(device_t dev);
153 static u_int32_t arcmsr_iop_ioctlcmd(struct AdapterControlBlock *acb, u_int32_t ioctl_cmd, caddr_t arg);
154 static void arcmsr_iop_parking(struct AdapterControlBlock *acb);
155 static int arcmsr_shutdown(device_t dev);
156 static void arcmsr_interrupt(struct AdapterControlBlock *acb);
157 static void arcmsr_polling_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb);
158 static void arcmsr_free_resource(struct AdapterControlBlock *acb);
159 static void arcmsr_bus_reset(struct AdapterControlBlock *acb);
160 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb);
161 static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb);
162 static void arcmsr_iop_init(struct AdapterControlBlock *acb);
163 static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb);
164 static u_int32_t arcmsr_Read_iop_rqbuffer_data(struct AdapterControlBlock *acb, struct QBUFFER *prbuffer);
165 static void arcmsr_Write_data_2iop_wqbuffer(struct AdapterControlBlock *acb);
166 static void arcmsr_abort_allcmd(struct AdapterControlBlock *acb);
167 static void arcmsr_srb_complete(struct CommandControlBlock *srb, int stand_flag);
168 static void arcmsr_iop_reset(struct AdapterControlBlock *acb);
169 static void arcmsr_report_sense_info(struct CommandControlBlock *srb);
170 static void arcmsr_build_srb(struct CommandControlBlock *srb, bus_dma_segment_t *dm_segs, u_int32_t nseg);
171 static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, union ccb *pccb);
172 static int arcmsr_resume(device_t dev);
173 static int arcmsr_suspend(device_t dev);
174 static void arcmsr_rescanLun_cb(struct cam_periph *periph, union ccb *ccb);
175 static void arcmsr_polling_devmap(void *arg);
176 static void arcmsr_srb_timeout(void *arg);
177 static void arcmsr_hbd_postqueue_isr(struct AdapterControlBlock *acb);
178 static void arcmsr_hbe_postqueue_isr(struct AdapterControlBlock *acb);
179 static void arcmsr_teardown_intr(device_t dev, struct AdapterControlBlock *acb);
180 #ifdef ARCMSR_DEBUG1
181 static void arcmsr_dump_data(struct AdapterControlBlock *acb);
182 #endif
183 /*
184 **************************************************************************
185 **************************************************************************
186 */
187 static void UDELAY(u_int32_t us) { DELAY(us); }
188 /*
189 **************************************************************************
190 **************************************************************************
191 */
192 static bus_dmamap_callback_t arcmsr_map_free_srb;
193 static bus_dmamap_callback_t arcmsr_execute_srb;
194 /*
195 **************************************************************************
196 **************************************************************************
197 */
198 static d_open_t	arcmsr_open;
199 static d_close_t arcmsr_close;
200 static d_ioctl_t arcmsr_ioctl;
201 
202 static device_method_t arcmsr_methods[]={
203 	DEVMETHOD(device_probe,		arcmsr_probe),
204 	DEVMETHOD(device_attach,	arcmsr_attach),
205 	DEVMETHOD(device_detach,	arcmsr_detach),
206 	DEVMETHOD(device_shutdown,	arcmsr_shutdown),
207 	DEVMETHOD(device_suspend,	arcmsr_suspend),
208 	DEVMETHOD(device_resume,	arcmsr_resume),
209 	DEVMETHOD_END
210 };
211 
212 static driver_t arcmsr_driver={
213 	"arcmsr", arcmsr_methods, sizeof(struct AdapterControlBlock)
214 };
215 
216 static devclass_t arcmsr_devclass;
217 DRIVER_MODULE(arcmsr, pci, arcmsr_driver, arcmsr_devclass, 0, 0);
218 MODULE_DEPEND(arcmsr, pci, 1, 1, 1);
219 MODULE_DEPEND(arcmsr, cam, 1, 1, 1);
220 #ifndef BUS_DMA_COHERENT
221 	#define	BUS_DMA_COHERENT	0x04	/* hint: map memory in a coherent way */
222 #endif
223 static struct cdevsw arcmsr_cdevsw={
224 		.d_version = D_VERSION,
225 		.d_open    = arcmsr_open, 	/* open     */
226 		.d_close   = arcmsr_close, 	/* close    */
227 		.d_ioctl   = arcmsr_ioctl, 	/* ioctl    */
228 		.d_name    = "arcmsr", 		/* name     */
229 	};
230 /*
231 **************************************************************************
232 **************************************************************************
233 */
234 static int arcmsr_open(struct cdev *dev, int flags, int fmt, struct thread *proc)
235 {
236 	int	unit = dev2unit(dev);
237 	struct AdapterControlBlock *acb = devclass_get_softc(arcmsr_devclass, unit);
238 
239 	if (acb == NULL) {
240 		return ENXIO;
241 	}
242 	return (0);
243 }
244 /*
245 **************************************************************************
246 **************************************************************************
247 */
248 static int arcmsr_close(struct cdev *dev, int flags, int fmt, struct thread *proc)
249 {
250 	int	unit = dev2unit(dev);
251 	struct AdapterControlBlock *acb = devclass_get_softc(arcmsr_devclass, unit);
252 
253 	if (acb == NULL) {
254 		return ENXIO;
255 	}
256 	return 0;
257 }
258 /*
259 **************************************************************************
260 **************************************************************************
261 */
262 static int arcmsr_ioctl(struct cdev *dev, u_long ioctl_cmd, caddr_t arg, int flags, struct thread *proc)
263 {
264 	int	unit = dev2unit(dev);
265 	struct AdapterControlBlock *acb = devclass_get_softc(arcmsr_devclass, unit);
266 
267 	if (acb == NULL) {
268 		return ENXIO;
269 	}
270 	return (arcmsr_iop_ioctlcmd(acb, ioctl_cmd, arg));
271 }
272 /*
273 **********************************************************************
274 **********************************************************************
275 */
276 static u_int32_t arcmsr_disable_allintr( struct AdapterControlBlock *acb)
277 {
278 	u_int32_t intmask_org = 0;
279 
280 	switch (acb->adapter_type) {
281 	case ACB_ADAPTER_TYPE_A: {
282 			/* disable all outbound interrupt */
283 			intmask_org = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intmask); /* disable outbound message0 int */
284 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intmask, intmask_org|ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE);
285 		}
286 		break;
287 	case ACB_ADAPTER_TYPE_B: {
288 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
289 			/* disable all outbound interrupt */
290 			intmask_org = READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell_mask)
291 						& (~ARCMSR_IOP2DRV_MESSAGE_CMD_DONE); /* disable outbound message0 int */
292 			WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell_mask, 0); /* disable all interrupt */
293 		}
294 		break;
295 	case ACB_ADAPTER_TYPE_C: {
296 			/* disable all outbound interrupt */
297 			intmask_org = CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_mask)	; /* disable outbound message0 int */
298 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, host_int_mask, intmask_org|ARCMSR_HBCMU_ALL_INTMASKENABLE);
299 		}
300 		break;
301 	case ACB_ADAPTER_TYPE_D: {
302 			/* disable all outbound interrupt */
303 			intmask_org = CHIP_REG_READ32(HBD_MessageUnit, 0, pcief0_int_enable)	; /* disable outbound message0 int */
304 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, pcief0_int_enable, ARCMSR_HBDMU_ALL_INT_DISABLE);
305 		}
306 		break;
307 	case ACB_ADAPTER_TYPE_E: {
308 			/* disable all outbound interrupt */
309 			intmask_org = CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_mask)	; /* disable outbound message0 int */
310 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_mask, intmask_org | ARCMSR_HBEMU_ALL_INTMASKENABLE);
311 		}
312 		break;
313 	}
314 	return (intmask_org);
315 }
316 /*
317 **********************************************************************
318 **********************************************************************
319 */
320 static void arcmsr_enable_allintr( struct AdapterControlBlock *acb, u_int32_t intmask_org)
321 {
322 	u_int32_t mask;
323 
324 	switch (acb->adapter_type) {
325 	case ACB_ADAPTER_TYPE_A: {
326 			/* enable outbound Post Queue, outbound doorbell Interrupt */
327 			mask = ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE|ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE|ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE);
328 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intmask, intmask_org & mask);
329 			acb->outbound_int_enable = ~(intmask_org & mask) & 0x000000ff;
330 		}
331 		break;
332 	case ACB_ADAPTER_TYPE_B: {
333 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
334 			/* enable ARCMSR_IOP2DRV_MESSAGE_CMD_DONE */
335 			mask = (ARCMSR_IOP2DRV_DATA_WRITE_OK|ARCMSR_IOP2DRV_DATA_READ_OK|ARCMSR_IOP2DRV_CDB_DONE|ARCMSR_IOP2DRV_MESSAGE_CMD_DONE);
336 			WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell_mask, intmask_org | mask); /*1=interrupt enable, 0=interrupt disable*/
337 			acb->outbound_int_enable = (intmask_org | mask) & 0x0000000f;
338 		}
339 		break;
340 	case ACB_ADAPTER_TYPE_C: {
341 			/* enable outbound Post Queue, outbound doorbell Interrupt */
342 			mask = ~(ARCMSR_HBCMU_UTILITY_A_ISR_MASK | ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR_MASK | ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR_MASK);
343 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, host_int_mask, intmask_org & mask);
344 			acb->outbound_int_enable = ~(intmask_org & mask) & 0x0000000f;
345 		}
346 		break;
347 	case ACB_ADAPTER_TYPE_D: {
348 			/* enable outbound Post Queue, outbound doorbell Interrupt */
349 			mask = ARCMSR_HBDMU_ALL_INT_ENABLE;
350 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, pcief0_int_enable, intmask_org | mask);
351 			CHIP_REG_READ32(HBD_MessageUnit, 0, pcief0_int_enable);
352 			acb->outbound_int_enable = mask;
353 		}
354 		break;
355 	case ACB_ADAPTER_TYPE_E: {
356 			/* enable outbound Post Queue, outbound doorbell Interrupt */
357 			mask = ~(ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR | ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR);
358 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_mask, intmask_org & mask);
359 			acb->outbound_int_enable = ~(intmask_org & mask) & 0x0000000f;
360 		}
361 		break;
362 	}
363 }
364 /*
365 **********************************************************************
366 **********************************************************************
367 */
368 static u_int8_t arcmsr_hba_wait_msgint_ready(struct AdapterControlBlock *acb)
369 {
370 	u_int32_t Index;
371 	u_int8_t Retries = 0x00;
372 
373 	do {
374 		for(Index=0; Index < 100; Index++) {
375 			if(CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intstatus) & ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
376 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, ARCMSR_MU_OUTBOUND_MESSAGE0_INT);/*clear interrupt*/
377 				return TRUE;
378 			}
379 			UDELAY(10000);
380 		}/*max 1 seconds*/
381 	}while(Retries++ < 20);/*max 20 sec*/
382 	return (FALSE);
383 }
384 /*
385 **********************************************************************
386 **********************************************************************
387 */
388 static u_int8_t arcmsr_hbb_wait_msgint_ready(struct AdapterControlBlock *acb)
389 {
390 	u_int32_t Index;
391 	u_int8_t Retries = 0x00;
392 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
393 
394 	do {
395 		for(Index=0; Index < 100; Index++) {
396 			if(READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell) & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
397 				WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_MESSAGE_INT_CLEAR_PATTERN);/*clear interrupt*/
398 				WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_END_OF_INTERRUPT);
399 				return TRUE;
400 			}
401 			UDELAY(10000);
402 		}/*max 1 seconds*/
403 	}while(Retries++ < 20);/*max 20 sec*/
404 	return (FALSE);
405 }
406 /*
407 **********************************************************************
408 **********************************************************************
409 */
410 static u_int8_t arcmsr_hbc_wait_msgint_ready(struct AdapterControlBlock *acb)
411 {
412 	u_int32_t Index;
413 	u_int8_t Retries = 0x00;
414 
415 	do {
416 		for(Index=0; Index < 100; Index++) {
417 			if(CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
418 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, outbound_doorbell_clear, ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR);/*clear interrupt*/
419 				return TRUE;
420 			}
421 			UDELAY(10000);
422 		}/*max 1 seconds*/
423 	}while(Retries++ < 20);/*max 20 sec*/
424 	return (FALSE);
425 }
426 /*
427 **********************************************************************
428 **********************************************************************
429 */
430 static u_int8_t arcmsr_hbd_wait_msgint_ready(struct AdapterControlBlock *acb)
431 {
432 	u_int32_t Index;
433 	u_int8_t Retries = 0x00;
434 
435 	do {
436 		for(Index=0; Index < 100; Index++) {
437 			if(CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE) {
438 				CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE_CLEAR);/*clear interrupt*/
439 				return TRUE;
440 			}
441 			UDELAY(10000);
442 		}/*max 1 seconds*/
443 	}while(Retries++ < 20);/*max 20 sec*/
444 	return (FALSE);
445 }
446 /*
447 **********************************************************************
448 **********************************************************************
449 */
450 static u_int8_t arcmsr_hbe_wait_msgint_ready(struct AdapterControlBlock *acb)
451 {
452 	u_int32_t Index, read_doorbell;
453 	u_int8_t Retries = 0x00;
454 
455 	do {
456 		for(Index=0; Index < 100; Index++) {
457 			read_doorbell = CHIP_REG_READ32(HBE_MessageUnit, 0, iobound_doorbell);
458 			if((read_doorbell ^ acb->in_doorbell) & ARCMSR_HBEMU_IOP2DRV_MESSAGE_CMD_DONE) {
459 				CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_status, 0);/*clear interrupt*/
460 				acb->in_doorbell = read_doorbell;
461 				return TRUE;
462 			}
463 			UDELAY(10000);
464 		}/*max 1 seconds*/
465 	}while(Retries++ < 20);/*max 20 sec*/
466 	return (FALSE);
467 }
468 /*
469 ************************************************************************
470 ************************************************************************
471 */
472 static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb)
473 {
474 	int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
475 
476 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_FLUSH_CACHE);
477 	do {
478 		if(arcmsr_hba_wait_msgint_ready(acb)) {
479 			break;
480 		} else {
481 			retry_count--;
482 		}
483 	}while(retry_count != 0);
484 }
485 /*
486 ************************************************************************
487 ************************************************************************
488 */
489 static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb)
490 {
491 	int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
492 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
493 
494 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_FLUSH_CACHE);
495 	do {
496 		if(arcmsr_hbb_wait_msgint_ready(acb)) {
497 			break;
498 		} else {
499 			retry_count--;
500 		}
501 	}while(retry_count != 0);
502 }
503 /*
504 ************************************************************************
505 ************************************************************************
506 */
507 static void arcmsr_flush_hbc_cache(struct AdapterControlBlock *acb)
508 {
509 	int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
510 
511 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_FLUSH_CACHE);
512 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
513 	do {
514 		if(arcmsr_hbc_wait_msgint_ready(acb)) {
515 			break;
516 		} else {
517 			retry_count--;
518 		}
519 	}while(retry_count != 0);
520 }
521 /*
522 ************************************************************************
523 ************************************************************************
524 */
525 static void arcmsr_flush_hbd_cache(struct AdapterControlBlock *acb)
526 {
527 	int retry_count = 30; /* enlarge wait flush adapter cache time: 10 minute */
528 
529 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_FLUSH_CACHE);
530 	do {
531 		if(arcmsr_hbd_wait_msgint_ready(acb)) {
532 			break;
533 		} else {
534 			retry_count--;
535 		}
536 	}while(retry_count != 0);
537 }
538 /*
539 ************************************************************************
540 ************************************************************************
541 */
542 static void arcmsr_flush_hbe_cache(struct AdapterControlBlock *acb)
543 {
544 	int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
545 
546 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_FLUSH_CACHE);
547 	acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
548 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
549 	do {
550 		if(arcmsr_hbe_wait_msgint_ready(acb)) {
551 			break;
552 		} else {
553 			retry_count--;
554 		}
555 	}while(retry_count != 0);
556 }
557 /*
558 ************************************************************************
559 ************************************************************************
560 */
561 static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb)
562 {
563 	switch (acb->adapter_type) {
564 	case ACB_ADAPTER_TYPE_A: {
565 			arcmsr_flush_hba_cache(acb);
566 		}
567 		break;
568 	case ACB_ADAPTER_TYPE_B: {
569 			arcmsr_flush_hbb_cache(acb);
570 		}
571 		break;
572 	case ACB_ADAPTER_TYPE_C: {
573 			arcmsr_flush_hbc_cache(acb);
574 		}
575 		break;
576 	case ACB_ADAPTER_TYPE_D: {
577 			arcmsr_flush_hbd_cache(acb);
578 		}
579 		break;
580 	case ACB_ADAPTER_TYPE_E: {
581 			arcmsr_flush_hbe_cache(acb);
582 		}
583 		break;
584 	}
585 }
586 /*
587 *******************************************************************************
588 *******************************************************************************
589 */
590 static int arcmsr_suspend(device_t dev)
591 {
592 	struct AdapterControlBlock	*acb = device_get_softc(dev);
593 
594 	/* flush controller */
595 	arcmsr_iop_parking(acb);
596 	/* disable all outbound interrupt */
597 	arcmsr_disable_allintr(acb);
598 	return(0);
599 }
600 /*
601 *******************************************************************************
602 *******************************************************************************
603 */
604 static int arcmsr_resume(device_t dev)
605 {
606 	struct AdapterControlBlock	*acb = device_get_softc(dev);
607 
608 	arcmsr_iop_init(acb);
609 	return(0);
610 }
611 /*
612 *********************************************************************************
613 *********************************************************************************
614 */
615 static void arcmsr_async(void *cb_arg, u_int32_t code, struct cam_path *path, void *arg)
616 {
617 	struct AdapterControlBlock *acb;
618 	u_int8_t target_id, target_lun;
619 	struct cam_sim *sim;
620 
621 	sim = (struct cam_sim *) cb_arg;
622 	acb =(struct AdapterControlBlock *) cam_sim_softc(sim);
623 	switch (code) {
624 	case AC_LOST_DEVICE:
625 		target_id = xpt_path_target_id(path);
626 		target_lun = xpt_path_lun_id(path);
627 		if((target_id > ARCMSR_MAX_TARGETID) || (target_lun > ARCMSR_MAX_TARGETLUN)) {
628 			break;
629 		}
630 	//	printf("%s:scsi id=%d lun=%d device lost \n", device_get_name(acb->pci_dev), target_id, target_lun);
631 		break;
632 	default:
633 		break;
634 	}
635 }
636 /*
637 **********************************************************************
638 **********************************************************************
639 */
640 static void arcmsr_report_sense_info(struct CommandControlBlock *srb)
641 {
642 	union ccb *pccb = srb->pccb;
643 
644 	pccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
645 	pccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
646 	if(pccb->csio.sense_len) {
647 		memset(&pccb->csio.sense_data, 0, sizeof(pccb->csio.sense_data));
648 		memcpy(&pccb->csio.sense_data, srb->arcmsr_cdb.SenseData,
649 		get_min(sizeof(struct SENSE_DATA), sizeof(pccb->csio.sense_data)));
650 		((u_int8_t *)&pccb->csio.sense_data)[0] = (0x1 << 7 | 0x70); /* Valid,ErrorCode */
651 		pccb->ccb_h.status |= CAM_AUTOSNS_VALID;
652 	}
653 }
654 /*
655 *********************************************************************
656 *********************************************************************
657 */
658 static void arcmsr_abort_hba_allcmd(struct AdapterControlBlock *acb)
659 {
660 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_ABORT_CMD);
661 	if(!arcmsr_hba_wait_msgint_ready(acb)) {
662 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
663 	}
664 }
665 /*
666 *********************************************************************
667 *********************************************************************
668 */
669 static void arcmsr_abort_hbb_allcmd(struct AdapterControlBlock *acb)
670 {
671 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
672 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_ABORT_CMD);
673 	if(!arcmsr_hbb_wait_msgint_ready(acb)) {
674 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
675 	}
676 }
677 /*
678 *********************************************************************
679 *********************************************************************
680 */
681 static void arcmsr_abort_hbc_allcmd(struct AdapterControlBlock *acb)
682 {
683 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_ABORT_CMD);
684 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
685 	if(!arcmsr_hbc_wait_msgint_ready(acb)) {
686 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
687 	}
688 }
689 /*
690 *********************************************************************
691 *********************************************************************
692 */
693 static void arcmsr_abort_hbd_allcmd(struct AdapterControlBlock *acb)
694 {
695 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_ABORT_CMD);
696 	if(!arcmsr_hbd_wait_msgint_ready(acb)) {
697 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
698 	}
699 }
700 /*
701 *********************************************************************
702 *********************************************************************
703 */
704 static void arcmsr_abort_hbe_allcmd(struct AdapterControlBlock *acb)
705 {
706 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_ABORT_CMD);
707 	acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
708 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
709 	if(!arcmsr_hbe_wait_msgint_ready(acb)) {
710 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
711 	}
712 }
713 /*
714 *********************************************************************
715 *********************************************************************
716 */
717 static void arcmsr_abort_allcmd(struct AdapterControlBlock *acb)
718 {
719 	switch (acb->adapter_type) {
720 	case ACB_ADAPTER_TYPE_A: {
721 			arcmsr_abort_hba_allcmd(acb);
722 		}
723 		break;
724 	case ACB_ADAPTER_TYPE_B: {
725 			arcmsr_abort_hbb_allcmd(acb);
726 		}
727 		break;
728 	case ACB_ADAPTER_TYPE_C: {
729 			arcmsr_abort_hbc_allcmd(acb);
730 		}
731 		break;
732 	case ACB_ADAPTER_TYPE_D: {
733 			arcmsr_abort_hbd_allcmd(acb);
734 		}
735 		break;
736 	case ACB_ADAPTER_TYPE_E: {
737 			arcmsr_abort_hbe_allcmd(acb);
738 		}
739 		break;
740 	}
741 }
742 /*
743 **********************************************************************
744 **********************************************************************
745 */
746 static void arcmsr_srb_complete(struct CommandControlBlock *srb, int stand_flag)
747 {
748 	struct AdapterControlBlock *acb = srb->acb;
749 	union ccb *pccb = srb->pccb;
750 
751 	if(srb->srb_flags & SRB_FLAG_TIMER_START)
752 		callout_stop(&srb->ccb_callout);
753 	if((pccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
754 		bus_dmasync_op_t op;
755 
756 		if((pccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
757 			op = BUS_DMASYNC_POSTREAD;
758 		} else {
759 			op = BUS_DMASYNC_POSTWRITE;
760 		}
761 		bus_dmamap_sync(acb->dm_segs_dmat, srb->dm_segs_dmamap, op);
762 		bus_dmamap_unload(acb->dm_segs_dmat, srb->dm_segs_dmamap);
763 	}
764 	if(stand_flag == 1) {
765 		atomic_subtract_int(&acb->srboutstandingcount, 1);
766 		if((acb->acb_flags & ACB_F_CAM_DEV_QFRZN) && (
767 		acb->srboutstandingcount < (acb->maxOutstanding -10))) {
768 			acb->acb_flags &= ~ACB_F_CAM_DEV_QFRZN;
769 			pccb->ccb_h.status |= CAM_RELEASE_SIMQ;
770 		}
771 	}
772 	if(srb->srb_state != ARCMSR_SRB_TIMEOUT)
773 		arcmsr_free_srb(srb);
774 	acb->pktReturnCount++;
775 	xpt_done(pccb);
776 }
777 /*
778 **************************************************************************
779 **************************************************************************
780 */
781 static void arcmsr_report_srb_state(struct AdapterControlBlock *acb, struct CommandControlBlock *srb, u_int16_t error)
782 {
783 	int target, lun;
784 
785 	target = srb->pccb->ccb_h.target_id;
786 	lun = srb->pccb->ccb_h.target_lun;
787 	if(error == FALSE) {
788 		if(acb->devstate[target][lun] == ARECA_RAID_GONE) {
789 			acb->devstate[target][lun] = ARECA_RAID_GOOD;
790 		}
791 		srb->pccb->ccb_h.status |= CAM_REQ_CMP;
792 		arcmsr_srb_complete(srb, 1);
793 	} else {
794 		switch(srb->arcmsr_cdb.DeviceStatus) {
795 		case ARCMSR_DEV_SELECT_TIMEOUT: {
796 				if(acb->devstate[target][lun] == ARECA_RAID_GOOD) {
797 					printf( "arcmsr%d: Target=%x, Lun=%x, selection timeout, raid volume was lost\n", acb->pci_unit, target, lun);
798 				}
799 				acb->devstate[target][lun] = ARECA_RAID_GONE;
800 				srb->pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
801 				arcmsr_srb_complete(srb, 1);
802 			}
803 			break;
804 		case ARCMSR_DEV_ABORTED:
805 		case ARCMSR_DEV_INIT_FAIL: {
806 				acb->devstate[target][lun] = ARECA_RAID_GONE;
807 				srb->pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
808 				arcmsr_srb_complete(srb, 1);
809 			}
810 			break;
811 		case SCSISTAT_CHECK_CONDITION: {
812 				acb->devstate[target][lun] = ARECA_RAID_GOOD;
813 				arcmsr_report_sense_info(srb);
814 				arcmsr_srb_complete(srb, 1);
815 			}
816 			break;
817 		default:
818 			printf("arcmsr%d: scsi id=%d lun=%d isr got command error done,but got unknown DeviceStatus=0x%x \n"
819 					, acb->pci_unit, target, lun ,srb->arcmsr_cdb.DeviceStatus);
820 			acb->devstate[target][lun] = ARECA_RAID_GONE;
821 			srb->pccb->ccb_h.status |= CAM_UNCOR_PARITY;
822 			/*unknown error or crc error just for retry*/
823 			arcmsr_srb_complete(srb, 1);
824 			break;
825 		}
826 	}
827 }
828 /*
829 **************************************************************************
830 **************************************************************************
831 */
832 static void arcmsr_drain_donequeue(struct AdapterControlBlock *acb, u_int32_t flag_srb, u_int16_t error)
833 {
834 	struct CommandControlBlock *srb;
835 
836 	/* check if command done with no error*/
837 	switch (acb->adapter_type) {
838 	case ACB_ADAPTER_TYPE_A:
839 	case ACB_ADAPTER_TYPE_B:
840 		srb = (struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb << 5));/*frame must be 32 bytes aligned*/
841 		break;
842 	case ACB_ADAPTER_TYPE_C:
843 	case ACB_ADAPTER_TYPE_D:
844 		srb = (struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb & 0xFFFFFFE0)); /*frame must be 32 bytes aligned*/
845 		break;
846 	case ACB_ADAPTER_TYPE_E:
847 		srb = acb->psrb_pool[flag_srb];
848 		break;
849 	default:
850 		srb = (struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb << 5));/*frame must be 32 bytes aligned*/
851 		break;
852 	}
853 	if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
854 		if(srb->srb_state == ARCMSR_SRB_TIMEOUT) {
855 			arcmsr_free_srb(srb);
856 			printf("arcmsr%d: srb='%p' return srb has been timeouted\n", acb->pci_unit, srb);
857 			return;
858 		}
859 		printf("arcmsr%d: return srb has been completed\n"
860 			"srb='%p' srb_state=0x%x outstanding srb count=%d \n",
861 			acb->pci_unit, srb, srb->srb_state, acb->srboutstandingcount);
862 		return;
863 	}
864 	arcmsr_report_srb_state(acb, srb, error);
865 }
866 /*
867 **************************************************************************
868 **************************************************************************
869 */
870 static void	arcmsr_srb_timeout(void *arg)
871 {
872 	struct CommandControlBlock *srb = (struct CommandControlBlock *)arg;
873 	struct AdapterControlBlock *acb;
874 	int target, lun;
875 	u_int8_t cmd;
876 
877 	target = srb->pccb->ccb_h.target_id;
878 	lun = srb->pccb->ccb_h.target_lun;
879 	acb = srb->acb;
880 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
881 	if(srb->srb_state == ARCMSR_SRB_START)
882 	{
883 		cmd = scsiio_cdb_ptr(&srb->pccb->csio)[0];
884 		srb->srb_state = ARCMSR_SRB_TIMEOUT;
885 		srb->pccb->ccb_h.status |= CAM_CMD_TIMEOUT;
886 		arcmsr_srb_complete(srb, 1);
887 		printf("arcmsr%d: scsi id %d lun %d cmd=0x%x srb='%p' ccb command time out!\n",
888 				 acb->pci_unit, target, lun, cmd, srb);
889 	}
890 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
891 #ifdef ARCMSR_DEBUG1
892 	arcmsr_dump_data(acb);
893 #endif
894 }
895 
896 /*
897 **********************************************************************
898 **********************************************************************
899 */
900 static void arcmsr_done4abort_postqueue(struct AdapterControlBlock *acb)
901 {
902 	int i=0;
903 	u_int32_t flag_srb;
904 	u_int16_t error;
905 
906 	switch (acb->adapter_type) {
907 	case ACB_ADAPTER_TYPE_A: {
908 			u_int32_t outbound_intstatus;
909 
910 			/*clear and abort all outbound posted Q*/
911 			outbound_intstatus = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intstatus) & acb->outbound_int_enable;
912 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, outbound_intstatus);/*clear interrupt*/
913 			while(((flag_srb=CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_queueport)) != 0xFFFFFFFF) && (i++ < ARCMSR_MAX_OUTSTANDING_CMD)) {
914 				error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0)?TRUE:FALSE;
915 				arcmsr_drain_donequeue(acb, flag_srb, error);
916 			}
917 		}
918 		break;
919 	case ACB_ADAPTER_TYPE_B: {
920 			struct HBB_MessageUnit *phbbmu=(struct HBB_MessageUnit *)acb->pmu;
921 
922 			/*clear all outbound posted Q*/
923 			WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_DOORBELL_INT_CLEAR_PATTERN); /* clear doorbell interrupt */
924 			for(i=0; i < ARCMSR_MAX_HBB_POSTQUEUE; i++) {
925 				if((flag_srb = phbbmu->done_qbuffer[i]) != 0) {
926 					phbbmu->done_qbuffer[i] = 0;
927 					error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0)?TRUE:FALSE;
928 					arcmsr_drain_donequeue(acb, flag_srb, error);
929 				}
930 				phbbmu->post_qbuffer[i] = 0;
931 			}/*drain reply FIFO*/
932 			phbbmu->doneq_index = 0;
933 			phbbmu->postq_index = 0;
934 		}
935 		break;
936 	case ACB_ADAPTER_TYPE_C: {
937 
938 			while((CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) && (i++ < ARCMSR_MAX_OUTSTANDING_CMD)) {
939 				flag_srb = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_queueport_low);
940 				error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1) ? TRUE : FALSE;
941 				arcmsr_drain_donequeue(acb, flag_srb, error);
942 			}
943 		}
944 		break;
945 	case ACB_ADAPTER_TYPE_D: {
946 			arcmsr_hbd_postqueue_isr(acb);
947 		}
948 		break;
949 	case ACB_ADAPTER_TYPE_E: {
950 			arcmsr_hbe_postqueue_isr(acb);
951 		}
952 		break;
953 	}
954 }
955 /*
956 ****************************************************************************
957 ****************************************************************************
958 */
959 static void arcmsr_iop_reset(struct AdapterControlBlock *acb)
960 {
961 	struct CommandControlBlock *srb;
962 	u_int32_t intmask_org;
963 	u_int32_t i=0;
964 
965 	if(acb->srboutstandingcount>0) {
966 		/* disable all outbound interrupt */
967 		intmask_org = arcmsr_disable_allintr(acb);
968 		/*clear and abort all outbound posted Q*/
969 		arcmsr_done4abort_postqueue(acb);
970 		/* talk to iop 331 outstanding command aborted*/
971 		arcmsr_abort_allcmd(acb);
972 		for(i=0; i < ARCMSR_MAX_FREESRB_NUM; i++) {
973 			srb = acb->psrb_pool[i];
974 			if(srb->srb_state == ARCMSR_SRB_START) {
975 				srb->srb_state = ARCMSR_SRB_ABORTED;
976 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
977 				arcmsr_srb_complete(srb, 1);
978 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p' aborted\n"
979 						, acb->pci_unit, srb->pccb->ccb_h.target_id
980 						, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
981 			}
982 		}
983 		/* enable all outbound interrupt */
984 		arcmsr_enable_allintr(acb, intmask_org);
985 	}
986 	acb->srboutstandingcount = 0;
987 	acb->workingsrb_doneindex = 0;
988 	acb->workingsrb_startindex = 0;
989 	acb->pktRequestCount = 0;
990 	acb->pktReturnCount = 0;
991 }
992 /*
993 **********************************************************************
994 **********************************************************************
995 */
996 static void arcmsr_build_srb(struct CommandControlBlock *srb,
997 		bus_dma_segment_t *dm_segs, u_int32_t nseg)
998 {
999 	struct ARCMSR_CDB *arcmsr_cdb = &srb->arcmsr_cdb;
1000 	u_int8_t *psge = (u_int8_t *)&arcmsr_cdb->u;
1001 	u_int32_t address_lo, address_hi;
1002 	union ccb *pccb = srb->pccb;
1003 	struct ccb_scsiio *pcsio = &pccb->csio;
1004 	u_int32_t arccdbsize = 0x30;
1005 
1006 	memset(arcmsr_cdb, 0, sizeof(struct ARCMSR_CDB));
1007 	arcmsr_cdb->Bus = 0;
1008 	arcmsr_cdb->TargetID = pccb->ccb_h.target_id;
1009 	arcmsr_cdb->LUN = pccb->ccb_h.target_lun;
1010 	arcmsr_cdb->Function = 1;
1011 	arcmsr_cdb->CdbLength = (u_int8_t)pcsio->cdb_len;
1012 	bcopy(scsiio_cdb_ptr(pcsio), arcmsr_cdb->Cdb, pcsio->cdb_len);
1013 	if(nseg != 0) {
1014 		struct AdapterControlBlock *acb = srb->acb;
1015 		bus_dmasync_op_t op;
1016 		u_int32_t length, i, cdb_sgcount = 0;
1017 
1018 		if((pccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1019 			op = BUS_DMASYNC_PREREAD;
1020 		} else {
1021 			op = BUS_DMASYNC_PREWRITE;
1022 			arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_WRITE;
1023 			srb->srb_flags |= SRB_FLAG_WRITE;
1024 		}
1025 		bus_dmamap_sync(acb->dm_segs_dmat, srb->dm_segs_dmamap, op);
1026 		for(i=0; i < nseg; i++) {
1027 			/* Get the physical address of the current data pointer */
1028 			length = arcmsr_htole32(dm_segs[i].ds_len);
1029 			address_lo = arcmsr_htole32(dma_addr_lo32(dm_segs[i].ds_addr));
1030 			address_hi = arcmsr_htole32(dma_addr_hi32(dm_segs[i].ds_addr));
1031 			if(address_hi == 0) {
1032 				struct SG32ENTRY *pdma_sg = (struct SG32ENTRY *)psge;
1033 				pdma_sg->address = address_lo;
1034 				pdma_sg->length = length;
1035 				psge += sizeof(struct SG32ENTRY);
1036 				arccdbsize += sizeof(struct SG32ENTRY);
1037 			} else {
1038 				u_int32_t sg64s_size = 0, tmplength = length;
1039 
1040 				while(1) {
1041 					u_int64_t span4G, length0;
1042 					struct SG64ENTRY *pdma_sg = (struct SG64ENTRY *)psge;
1043 
1044 					span4G = (u_int64_t)address_lo + tmplength;
1045 					pdma_sg->addresshigh = address_hi;
1046 					pdma_sg->address = address_lo;
1047 					if(span4G > 0x100000000) {
1048 						/*see if cross 4G boundary*/
1049 						length0 = 0x100000000-address_lo;
1050 						pdma_sg->length = (u_int32_t)length0 | IS_SG64_ADDR;
1051 						address_hi = address_hi+1;
1052 						address_lo = 0;
1053 						tmplength = tmplength - (u_int32_t)length0;
1054 						sg64s_size += sizeof(struct SG64ENTRY);
1055 						psge += sizeof(struct SG64ENTRY);
1056 						cdb_sgcount++;
1057 					} else {
1058 						pdma_sg->length = tmplength | IS_SG64_ADDR;
1059 						sg64s_size += sizeof(struct SG64ENTRY);
1060 						psge += sizeof(struct SG64ENTRY);
1061 						break;
1062 					}
1063 				}
1064 				arccdbsize += sg64s_size;
1065 			}
1066 			cdb_sgcount++;
1067 		}
1068 		arcmsr_cdb->sgcount = (u_int8_t)cdb_sgcount;
1069 		arcmsr_cdb->DataLength = pcsio->dxfer_len;
1070 		if( arccdbsize > 256) {
1071 			arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_SGL_BSIZE;
1072 		}
1073 	} else {
1074 		arcmsr_cdb->DataLength = 0;
1075 	}
1076 	srb->arc_cdb_size = arccdbsize;
1077 	arcmsr_cdb->msgPages = (arccdbsize/256) + ((arccdbsize % 256) ? 1 : 0);
1078 }
1079 /*
1080 **************************************************************************
1081 **************************************************************************
1082 */
1083 static void arcmsr_post_srb(struct AdapterControlBlock *acb, struct CommandControlBlock *srb)
1084 {
1085 	u_int32_t cdb_phyaddr_low = (u_int32_t) srb->cdb_phyaddr_low;
1086 	struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&srb->arcmsr_cdb;
1087 
1088 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, (srb->srb_flags & SRB_FLAG_WRITE) ? BUS_DMASYNC_POSTWRITE:BUS_DMASYNC_POSTREAD);
1089 	atomic_add_int(&acb->srboutstandingcount, 1);
1090 	srb->srb_state = ARCMSR_SRB_START;
1091 
1092 	switch (acb->adapter_type) {
1093 	case ACB_ADAPTER_TYPE_A: {
1094 			if(arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) {
1095 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_queueport, cdb_phyaddr_low|ARCMSR_SRBPOST_FLAG_SGL_BSIZE);
1096 			} else {
1097 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_queueport, cdb_phyaddr_low);
1098 			}
1099 		}
1100 		break;
1101 	case ACB_ADAPTER_TYPE_B: {
1102 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1103 			int ending_index, index;
1104 
1105 			index = phbbmu->postq_index;
1106 			ending_index = ((index+1) % ARCMSR_MAX_HBB_POSTQUEUE);
1107 			phbbmu->post_qbuffer[ending_index] = 0;
1108 			if(arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) {
1109 				phbbmu->post_qbuffer[index] = cdb_phyaddr_low | ARCMSR_SRBPOST_FLAG_SGL_BSIZE;
1110 			} else {
1111 				phbbmu->post_qbuffer[index] = cdb_phyaddr_low;
1112 			}
1113 			index++;
1114 			index %= ARCMSR_MAX_HBB_POSTQUEUE;     /*if last index number set it to 0 */
1115 			phbbmu->postq_index = index;
1116 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_CDB_POSTED);
1117 		}
1118 		break;
1119 	case ACB_ADAPTER_TYPE_C: {
1120 			u_int32_t ccb_post_stamp, arc_cdb_size, cdb_phyaddr_hi32;
1121 
1122 			arc_cdb_size = (srb->arc_cdb_size > 0x300) ? 0x300 : srb->arc_cdb_size;
1123 			ccb_post_stamp = (cdb_phyaddr_low | ((arc_cdb_size-1) >> 6) | 1);
1124 			cdb_phyaddr_hi32 = acb->srb_phyaddr.B.phyadd_high;
1125 			if(cdb_phyaddr_hi32)
1126 			{
1127 				CHIP_REG_WRITE32(HBC_MessageUnit,0,inbound_queueport_high, cdb_phyaddr_hi32);
1128 				CHIP_REG_WRITE32(HBC_MessageUnit,0,inbound_queueport_low, ccb_post_stamp);
1129 			}
1130 			else
1131 			{
1132 				CHIP_REG_WRITE32(HBC_MessageUnit,0,inbound_queueport_low, ccb_post_stamp);
1133 			}
1134 		}
1135 		break;
1136 	case ACB_ADAPTER_TYPE_D: {
1137 			struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
1138 			u_int16_t index_stripped;
1139 			u_int16_t postq_index;
1140 			struct InBound_SRB *pinbound_srb;
1141 
1142 			ARCMSR_LOCK_ACQUIRE(&acb->postDone_lock);
1143 			postq_index = phbdmu->postq_index;
1144 			pinbound_srb = (struct InBound_SRB *)&phbdmu->post_qbuffer[postq_index & 0xFF];
1145 			pinbound_srb->addressHigh = srb->cdb_phyaddr_high;
1146 			pinbound_srb->addressLow = srb->cdb_phyaddr_low;
1147 			pinbound_srb->length = srb->arc_cdb_size >> 2;
1148 			arcmsr_cdb->Context = srb->cdb_phyaddr_low;
1149 			if (postq_index & 0x4000) {
1150 				index_stripped = postq_index & 0xFF;
1151 				index_stripped += 1;
1152 				index_stripped %= ARCMSR_MAX_HBD_POSTQUEUE;
1153 				phbdmu->postq_index = index_stripped ? (index_stripped | 0x4000) : index_stripped;
1154 			} else {
1155 				index_stripped = postq_index;
1156 				index_stripped += 1;
1157 				index_stripped %= ARCMSR_MAX_HBD_POSTQUEUE;
1158 				phbdmu->postq_index = index_stripped ? index_stripped : (index_stripped | 0x4000);
1159 			}
1160 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inboundlist_write_pointer, postq_index);
1161 			ARCMSR_LOCK_RELEASE(&acb->postDone_lock);
1162 		}
1163 		break;
1164 	case ACB_ADAPTER_TYPE_E: {
1165 			u_int32_t ccb_post_stamp, arc_cdb_size;
1166 
1167 			arc_cdb_size = (srb->arc_cdb_size > 0x300) ? 0x300 : srb->arc_cdb_size;
1168 			ccb_post_stamp = (srb->smid | ((arc_cdb_size-1) >> 6));
1169 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_queueport_high, 0);
1170 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_queueport_low, ccb_post_stamp);
1171         	}
1172 		break;
1173 	}
1174 }
1175 /*
1176 ************************************************************************
1177 ************************************************************************
1178 */
1179 static struct QBUFFER *arcmsr_get_iop_rqbuffer( struct AdapterControlBlock *acb)
1180 {
1181 	struct QBUFFER *qbuffer=NULL;
1182 
1183 	switch (acb->adapter_type) {
1184 	case ACB_ADAPTER_TYPE_A: {
1185 			struct HBA_MessageUnit *phbamu = (struct HBA_MessageUnit *)acb->pmu;
1186 
1187 			qbuffer = (struct QBUFFER *)&phbamu->message_rbuffer;
1188 		}
1189 		break;
1190 	case ACB_ADAPTER_TYPE_B: {
1191 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1192 
1193 			qbuffer = (struct QBUFFER *)&phbbmu->hbb_rwbuffer->message_rbuffer;
1194 		}
1195 		break;
1196 	case ACB_ADAPTER_TYPE_C: {
1197 			struct HBC_MessageUnit *phbcmu = (struct HBC_MessageUnit *)acb->pmu;
1198 
1199 			qbuffer = (struct QBUFFER *)&phbcmu->message_rbuffer;
1200 		}
1201 		break;
1202 	case ACB_ADAPTER_TYPE_D: {
1203 			struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
1204 
1205 			qbuffer = (struct QBUFFER *)&phbdmu->phbdmu->message_rbuffer;
1206 		}
1207 		break;
1208 	case ACB_ADAPTER_TYPE_E: {
1209 			struct HBE_MessageUnit *phbcmu = (struct HBE_MessageUnit *)acb->pmu;
1210 
1211 			qbuffer = (struct QBUFFER *)&phbcmu->message_rbuffer;
1212 		}
1213 		break;
1214 	}
1215 	return(qbuffer);
1216 }
1217 /*
1218 ************************************************************************
1219 ************************************************************************
1220 */
1221 static struct QBUFFER *arcmsr_get_iop_wqbuffer( struct AdapterControlBlock *acb)
1222 {
1223 	struct QBUFFER *qbuffer = NULL;
1224 
1225 	switch (acb->adapter_type) {
1226 	case ACB_ADAPTER_TYPE_A: {
1227 			struct HBA_MessageUnit *phbamu = (struct HBA_MessageUnit *)acb->pmu;
1228 
1229 			qbuffer = (struct QBUFFER *)&phbamu->message_wbuffer;
1230 		}
1231 		break;
1232 	case ACB_ADAPTER_TYPE_B: {
1233 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1234 
1235 			qbuffer = (struct QBUFFER *)&phbbmu->hbb_rwbuffer->message_wbuffer;
1236 		}
1237 		break;
1238 	case ACB_ADAPTER_TYPE_C: {
1239 			struct HBC_MessageUnit *phbcmu = (struct HBC_MessageUnit *)acb->pmu;
1240 
1241 			qbuffer = (struct QBUFFER *)&phbcmu->message_wbuffer;
1242 		}
1243 		break;
1244 	case ACB_ADAPTER_TYPE_D: {
1245 			struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
1246 
1247 			qbuffer = (struct QBUFFER *)&phbdmu->phbdmu->message_wbuffer;
1248 		}
1249 		break;
1250 	case ACB_ADAPTER_TYPE_E: {
1251 			struct HBE_MessageUnit *phbcmu = (struct HBE_MessageUnit *)acb->pmu;
1252 
1253 			qbuffer = (struct QBUFFER *)&phbcmu->message_wbuffer;
1254 		}
1255 		break;
1256 	}
1257 	return(qbuffer);
1258 }
1259 /*
1260 **************************************************************************
1261 **************************************************************************
1262 */
1263 static void arcmsr_iop_message_read(struct AdapterControlBlock *acb)
1264 {
1265 	switch (acb->adapter_type) {
1266 	case ACB_ADAPTER_TYPE_A: {
1267 			/* let IOP know data has been read */
1268 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_READ_OK);
1269 		}
1270 		break;
1271 	case ACB_ADAPTER_TYPE_B: {
1272 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1273 			/* let IOP know data has been read */
1274 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_DATA_READ_OK);
1275 		}
1276 		break;
1277 	case ACB_ADAPTER_TYPE_C: {
1278 			/* let IOP know data has been read */
1279 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK);
1280 		}
1281 		break;
1282 	case ACB_ADAPTER_TYPE_D: {
1283 			/* let IOP know data has been read */
1284 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_doorbell, ARCMSR_HBDMU_DRV2IOP_DATA_OUT_READ);
1285 		}
1286 		break;
1287 	case ACB_ADAPTER_TYPE_E: {
1288 			/* let IOP know data has been read */
1289 			acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_READ_OK;
1290 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
1291 		}
1292 		break;
1293 	}
1294 }
1295 /*
1296 **************************************************************************
1297 **************************************************************************
1298 */
1299 static void arcmsr_iop_message_wrote(struct AdapterControlBlock *acb)
1300 {
1301 	switch (acb->adapter_type) {
1302 	case ACB_ADAPTER_TYPE_A: {
1303 			/*
1304 			** push inbound doorbell tell iop, driver data write ok
1305 			** and wait reply on next hwinterrupt for next Qbuffer post
1306 			*/
1307 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK);
1308 		}
1309 		break;
1310 	case ACB_ADAPTER_TYPE_B: {
1311 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1312 			/*
1313 			** push inbound doorbell tell iop, driver data write ok
1314 			** and wait reply on next hwinterrupt for next Qbuffer post
1315 			*/
1316 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_DATA_WRITE_OK);
1317 		}
1318 		break;
1319 	case ACB_ADAPTER_TYPE_C: {
1320 			/*
1321 			** push inbound doorbell tell iop, driver data write ok
1322 			** and wait reply on next hwinterrupt for next Qbuffer post
1323 			*/
1324 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_DATA_WRITE_OK);
1325 		}
1326 		break;
1327 	case ACB_ADAPTER_TYPE_D: {
1328 			/*
1329 			** push inbound doorbell tell iop, driver data write ok
1330 			** and wait reply on next hwinterrupt for next Qbuffer post
1331 			*/
1332 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_doorbell, ARCMSR_HBDMU_DRV2IOP_DATA_IN_READY);
1333 		}
1334 		break;
1335 	case ACB_ADAPTER_TYPE_E: {
1336 			/*
1337 			** push inbound doorbell tell iop, driver data write ok
1338 			** and wait reply on next hwinterrupt for next Qbuffer post
1339 			*/
1340 			acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_WRITE_OK;
1341 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
1342 		}
1343 		break;
1344 	}
1345 }
1346 /*
1347 ************************************************************************
1348 ************************************************************************
1349 */
1350 static void arcmsr_stop_hba_bgrb(struct AdapterControlBlock *acb)
1351 {
1352 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1353 	CHIP_REG_WRITE32(HBA_MessageUnit,
1354 		0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_STOP_BGRB);
1355 	if(!arcmsr_hba_wait_msgint_ready(acb)) {
1356 		printf("arcmsr%d: wait 'stop adapter background rebulid' timeout \n"
1357 			, acb->pci_unit);
1358 	}
1359 }
1360 /*
1361 ************************************************************************
1362 ************************************************************************
1363 */
1364 static void arcmsr_stop_hbb_bgrb(struct AdapterControlBlock *acb)
1365 {
1366 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1367 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1368 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_STOP_BGRB);
1369 	if(!arcmsr_hbb_wait_msgint_ready(acb)) {
1370 		printf( "arcmsr%d: wait 'stop adapter background rebulid' timeout \n"
1371 			, acb->pci_unit);
1372 	}
1373 }
1374 /*
1375 ************************************************************************
1376 ************************************************************************
1377 */
1378 static void arcmsr_stop_hbc_bgrb(struct AdapterControlBlock *acb)
1379 {
1380 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1381 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_STOP_BGRB);
1382 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell,ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
1383 	if(!arcmsr_hbc_wait_msgint_ready(acb)) {
1384 		printf("arcmsr%d: wait 'stop adapter background rebulid' timeout \n", acb->pci_unit);
1385 	}
1386 }
1387 /*
1388 ************************************************************************
1389 ************************************************************************
1390 */
1391 static void arcmsr_stop_hbd_bgrb(struct AdapterControlBlock *acb)
1392 {
1393 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1394 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_STOP_BGRB);
1395 	if(!arcmsr_hbd_wait_msgint_ready(acb)) {
1396 		printf("arcmsr%d: wait 'stop adapter background rebulid' timeout \n", acb->pci_unit);
1397 	}
1398 }
1399 /*
1400 ************************************************************************
1401 ************************************************************************
1402 */
1403 static void arcmsr_stop_hbe_bgrb(struct AdapterControlBlock *acb)
1404 {
1405 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1406 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_STOP_BGRB);
1407 	acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
1408 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
1409 	if(!arcmsr_hbe_wait_msgint_ready(acb)) {
1410 		printf("arcmsr%d: wait 'stop adapter background rebulid' timeout \n", acb->pci_unit);
1411 	}
1412 }
1413 /*
1414 ************************************************************************
1415 ************************************************************************
1416 */
1417 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb)
1418 {
1419 	switch (acb->adapter_type) {
1420 	case ACB_ADAPTER_TYPE_A: {
1421 			arcmsr_stop_hba_bgrb(acb);
1422 		}
1423 		break;
1424 	case ACB_ADAPTER_TYPE_B: {
1425 			arcmsr_stop_hbb_bgrb(acb);
1426 		}
1427 		break;
1428 	case ACB_ADAPTER_TYPE_C: {
1429 			arcmsr_stop_hbc_bgrb(acb);
1430 		}
1431 		break;
1432 	case ACB_ADAPTER_TYPE_D: {
1433 			arcmsr_stop_hbd_bgrb(acb);
1434 		}
1435 		break;
1436 	case ACB_ADAPTER_TYPE_E: {
1437 			arcmsr_stop_hbe_bgrb(acb);
1438 		}
1439 		break;
1440 	}
1441 }
1442 /*
1443 ************************************************************************
1444 ************************************************************************
1445 */
1446 static void arcmsr_poll(struct cam_sim *psim)
1447 {
1448 	struct AdapterControlBlock *acb;
1449 	int	mutex;
1450 
1451 	acb = (struct AdapterControlBlock *)cam_sim_softc(psim);
1452 	mutex = mtx_owned(&acb->isr_lock);
1453 	if( mutex == 0 )
1454 		ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
1455 	arcmsr_interrupt(acb);
1456 	if( mutex == 0 )
1457 		ARCMSR_LOCK_RELEASE(&acb->isr_lock);
1458 }
1459 /*
1460 **************************************************************************
1461 **************************************************************************
1462 */
1463 static u_int32_t arcmsr_Read_iop_rqbuffer_data_D(struct AdapterControlBlock *acb,
1464 	struct QBUFFER *prbuffer) {
1465 
1466 	u_int8_t *pQbuffer;
1467 	u_int8_t *buf1 = NULL;
1468 	u_int32_t *iop_data, *buf2 = NULL;
1469 	u_int32_t iop_len, data_len;
1470 
1471 	iop_data = (u_int32_t *)prbuffer->data;
1472 	iop_len = (u_int32_t)prbuffer->data_len;
1473 	if ( iop_len > 0 )
1474 	{
1475 		buf1 = malloc(128, M_DEVBUF, M_NOWAIT | M_ZERO);
1476 		buf2 = (u_int32_t *)buf1;
1477 		if( buf1 == NULL)
1478 			return (0);
1479 		data_len = iop_len;
1480 		while(data_len >= 4)
1481 		{
1482 			*buf2++ = *iop_data++;
1483 			data_len -= 4;
1484 		}
1485 		if(data_len)
1486 			*buf2 = *iop_data;
1487 		buf2 = (u_int32_t *)buf1;
1488 	}
1489 	while (iop_len > 0) {
1490 		pQbuffer = &acb->rqbuffer[acb->rqbuf_lastindex];
1491 		*pQbuffer = *buf1;
1492 		acb->rqbuf_lastindex++;
1493 		/* if last, index number set it to 0 */
1494 		acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
1495 		buf1++;
1496 		iop_len--;
1497 	}
1498 	if(buf2)
1499 		free( (u_int8_t *)buf2, M_DEVBUF);
1500 	/* let IOP know data has been read */
1501 	arcmsr_iop_message_read(acb);
1502 	return (1);
1503 }
1504 /*
1505 **************************************************************************
1506 **************************************************************************
1507 */
1508 static u_int32_t arcmsr_Read_iop_rqbuffer_data(struct AdapterControlBlock *acb,
1509 	struct QBUFFER *prbuffer) {
1510 
1511 	u_int8_t *pQbuffer;
1512 	u_int8_t *iop_data;
1513 	u_int32_t iop_len;
1514 
1515 	if(acb->adapter_type >= ACB_ADAPTER_TYPE_B) {
1516 		return(arcmsr_Read_iop_rqbuffer_data_D(acb, prbuffer));
1517 	}
1518 	iop_data = (u_int8_t *)prbuffer->data;
1519 	iop_len = (u_int32_t)prbuffer->data_len;
1520 	while (iop_len > 0) {
1521 		pQbuffer = &acb->rqbuffer[acb->rqbuf_lastindex];
1522 		*pQbuffer = *iop_data;
1523 		acb->rqbuf_lastindex++;
1524 		/* if last, index number set it to 0 */
1525 		acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
1526 		iop_data++;
1527 		iop_len--;
1528 	}
1529 	/* let IOP know data has been read */
1530 	arcmsr_iop_message_read(acb);
1531 	return (1);
1532 }
1533 /*
1534 **************************************************************************
1535 **************************************************************************
1536 */
1537 static void arcmsr_iop2drv_data_wrote_handle(struct AdapterControlBlock *acb)
1538 {
1539 	struct QBUFFER *prbuffer;
1540 	int my_empty_len;
1541 
1542 	/*check this iop data if overflow my rqbuffer*/
1543 	ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
1544 	prbuffer = arcmsr_get_iop_rqbuffer(acb);
1545 	my_empty_len = (acb->rqbuf_lastindex - acb->rqbuf_firstindex - 1) &
1546 		(ARCMSR_MAX_QBUFFER-1);
1547 	if(my_empty_len >= prbuffer->data_len) {
1548 		if(arcmsr_Read_iop_rqbuffer_data(acb, prbuffer) == 0)
1549 			acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
1550 	} else {
1551 		acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
1552 	}
1553 	ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
1554 }
1555 /*
1556 **********************************************************************
1557 **********************************************************************
1558 */
1559 static void arcmsr_Write_data_2iop_wqbuffer_D(struct AdapterControlBlock *acb)
1560 {
1561 	u_int8_t *pQbuffer;
1562 	struct QBUFFER *pwbuffer;
1563 	u_int8_t *buf1 = NULL;
1564 	u_int32_t *iop_data, *buf2 = NULL;
1565 	u_int32_t allxfer_len = 0, data_len;
1566 
1567 	if(acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READ) {
1568 		buf1 = malloc(128, M_DEVBUF, M_NOWAIT | M_ZERO);
1569 		buf2 = (u_int32_t *)buf1;
1570 		if( buf1 == NULL)
1571 			return;
1572 
1573 		acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READ);
1574 		pwbuffer = arcmsr_get_iop_wqbuffer(acb);
1575 		iop_data = (u_int32_t *)pwbuffer->data;
1576 		while((acb->wqbuf_firstindex != acb->wqbuf_lastindex)
1577 			&& (allxfer_len < 124)) {
1578 			pQbuffer = &acb->wqbuffer[acb->wqbuf_firstindex];
1579 			*buf1 = *pQbuffer;
1580 			acb->wqbuf_firstindex++;
1581 			acb->wqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
1582 			buf1++;
1583 			allxfer_len++;
1584 		}
1585 		pwbuffer->data_len = allxfer_len;
1586 		data_len = allxfer_len;
1587 		buf1 = (u_int8_t *)buf2;
1588 		while(data_len >= 4)
1589 		{
1590 			*iop_data++ = *buf2++;
1591 			data_len -= 4;
1592 		}
1593 		if(data_len)
1594 			*iop_data = *buf2;
1595 		free( buf1, M_DEVBUF);
1596 		arcmsr_iop_message_wrote(acb);
1597 	}
1598 }
1599 /*
1600 **********************************************************************
1601 **********************************************************************
1602 */
1603 static void arcmsr_Write_data_2iop_wqbuffer(struct AdapterControlBlock *acb)
1604 {
1605 	u_int8_t *pQbuffer;
1606 	struct QBUFFER *pwbuffer;
1607 	u_int8_t *iop_data;
1608 	int32_t allxfer_len=0;
1609 
1610 	if(acb->adapter_type >= ACB_ADAPTER_TYPE_B) {
1611 		arcmsr_Write_data_2iop_wqbuffer_D(acb);
1612 		return;
1613 	}
1614 	if(acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READ) {
1615 		acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READ);
1616 		pwbuffer = arcmsr_get_iop_wqbuffer(acb);
1617 		iop_data = (u_int8_t *)pwbuffer->data;
1618 		while((acb->wqbuf_firstindex != acb->wqbuf_lastindex)
1619 			&& (allxfer_len < 124)) {
1620 			pQbuffer = &acb->wqbuffer[acb->wqbuf_firstindex];
1621 			*iop_data = *pQbuffer;
1622 			acb->wqbuf_firstindex++;
1623 			acb->wqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
1624 			iop_data++;
1625 			allxfer_len++;
1626 		}
1627 		pwbuffer->data_len = allxfer_len;
1628 		arcmsr_iop_message_wrote(acb);
1629 	}
1630 }
1631 /*
1632 **************************************************************************
1633 **************************************************************************
1634 */
1635 static void arcmsr_iop2drv_data_read_handle(struct AdapterControlBlock *acb)
1636 {
1637 	ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
1638 	acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_READ;
1639 	/*
1640 	*****************************************************************
1641 	**   check if there are any mail packages from user space program
1642 	**   in my post bag, now is the time to send them into Areca's firmware
1643 	*****************************************************************
1644 	*/
1645 	if(acb->wqbuf_firstindex != acb->wqbuf_lastindex) {
1646 		arcmsr_Write_data_2iop_wqbuffer(acb);
1647 	}
1648 	if(acb->wqbuf_firstindex == acb->wqbuf_lastindex) {
1649 		acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_CLEARED;
1650 	}
1651 	ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
1652 }
1653 /*
1654 **************************************************************************
1655 **************************************************************************
1656 */
1657 static void arcmsr_rescanLun_cb(struct cam_periph *periph, union ccb *ccb)
1658 {
1659 /*
1660 	if (ccb->ccb_h.status != CAM_REQ_CMP)
1661 		printf("arcmsr_rescanLun_cb: Rescan Target=%x, lun=%x,"
1662 			"failure status=%x\n", ccb->ccb_h.target_id,
1663 			ccb->ccb_h.target_lun, ccb->ccb_h.status);
1664 	else
1665 		printf("arcmsr_rescanLun_cb: Rescan lun successfully!\n");
1666 */
1667 	xpt_free_path(ccb->ccb_h.path);
1668 	xpt_free_ccb(ccb);
1669 }
1670 
1671 static void	arcmsr_rescan_lun(struct AdapterControlBlock *acb, int target, int lun)
1672 {
1673 	struct cam_path     *path;
1674 	union ccb           *ccb;
1675 
1676 	if ((ccb = (union ccb *)xpt_alloc_ccb_nowait()) == NULL)
1677 			return;
1678 	if (xpt_create_path(&path, NULL, cam_sim_path(acb->psim), target, lun) != CAM_REQ_CMP)
1679 	{
1680 		xpt_free_ccb(ccb);
1681 		return;
1682 	}
1683 /*	printf("arcmsr_rescan_lun: Rescan Target=%x, Lun=%x\n", target, lun); */
1684 	bzero(ccb, sizeof(union ccb));
1685 	xpt_setup_ccb(&ccb->ccb_h, path, 5);
1686 	ccb->ccb_h.func_code = XPT_SCAN_LUN;
1687 	ccb->ccb_h.cbfcnp = arcmsr_rescanLun_cb;
1688 	ccb->crcn.flags = CAM_FLAG_NONE;
1689 	xpt_action(ccb);
1690 }
1691 
1692 
1693 static void arcmsr_abort_dr_ccbs(struct AdapterControlBlock *acb, int target, int lun)
1694 {
1695 	struct CommandControlBlock *srb;
1696 	u_int32_t intmask_org;
1697 	int i;
1698 
1699 	/* disable all outbound interrupts */
1700 	intmask_org = arcmsr_disable_allintr(acb);
1701 	for (i = 0; i < ARCMSR_MAX_FREESRB_NUM; i++)
1702 	{
1703 		srb = acb->psrb_pool[i];
1704 		if (srb->srb_state == ARCMSR_SRB_START)
1705 		{
1706 			if((target == srb->pccb->ccb_h.target_id) && (lun == srb->pccb->ccb_h.target_lun))
1707 			{
1708 				srb->srb_state = ARCMSR_SRB_ABORTED;
1709 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
1710 				arcmsr_srb_complete(srb, 1);
1711 				printf("arcmsr%d: abort scsi id %d lun %d srb=%p \n", acb->pci_unit, target, lun, srb);
1712 			}
1713 		}
1714 	}
1715 	/* enable outbound Post Queue, outbound doorbell Interrupt */
1716 	arcmsr_enable_allintr(acb, intmask_org);
1717 }
1718 /*
1719 **************************************************************************
1720 **************************************************************************
1721 */
1722 static void arcmsr_dr_handle(struct AdapterControlBlock *acb) {
1723 	u_int32_t	devicemap;
1724 	u_int32_t	target, lun;
1725 	u_int32_t	deviceMapCurrent[4]={0};
1726 	u_int8_t	*pDevMap;
1727 
1728 	switch (acb->adapter_type) {
1729 	case ACB_ADAPTER_TYPE_A:
1730 		devicemap = offsetof(struct HBA_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1731 		for (target = 0; target < 4; target++)
1732 		{
1733 			deviceMapCurrent[target]=bus_space_read_4(acb->btag[0], acb->bhandle[0],  devicemap);
1734 			devicemap += 4;
1735 		}
1736 		break;
1737 
1738 	case ACB_ADAPTER_TYPE_B:
1739 		devicemap = offsetof(struct HBB_RWBUFFER, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1740 		for (target = 0; target < 4; target++)
1741 		{
1742 			deviceMapCurrent[target]=bus_space_read_4(acb->btag[1], acb->bhandle[1],  devicemap);
1743 			devicemap += 4;
1744 		}
1745 		break;
1746 
1747 	case ACB_ADAPTER_TYPE_C:
1748 		devicemap = offsetof(struct HBC_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1749 		for (target = 0; target < 4; target++)
1750 		{
1751 			deviceMapCurrent[target]=bus_space_read_4(acb->btag[0], acb->bhandle[0],  devicemap);
1752 			devicemap += 4;
1753 		}
1754 		break;
1755 	case ACB_ADAPTER_TYPE_D:
1756 		devicemap = offsetof(struct HBD_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1757 		for (target = 0; target < 4; target++)
1758 		{
1759 			deviceMapCurrent[target]=bus_space_read_4(acb->btag[0], acb->bhandle[0],  devicemap);
1760 			devicemap += 4;
1761 		}
1762 		break;
1763 	case ACB_ADAPTER_TYPE_E:
1764 		devicemap = offsetof(struct HBE_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1765 		for (target = 0; target < 4; target++)
1766 		{
1767             		deviceMapCurrent[target]=bus_space_read_4(acb->btag[0], acb->bhandle[0],  devicemap);
1768             		devicemap += 4;
1769 		}
1770 		break;
1771 	}
1772 
1773 	if(acb->acb_flags & ACB_F_BUS_HANG_ON)
1774 	{
1775 		acb->acb_flags &= ~ACB_F_BUS_HANG_ON;
1776 	}
1777 	/*
1778 	** adapter posted CONFIG message
1779 	** copy the new map, note if there are differences with the current map
1780 	*/
1781 	pDevMap = (u_int8_t	*)&deviceMapCurrent[0];
1782 	for (target = 0; target < ARCMSR_MAX_TARGETID - 1; target++)
1783 	{
1784 		if (*pDevMap != acb->device_map[target])
1785 		{
1786 			u_int8_t difference, bit_check;
1787 
1788 			difference = *pDevMap ^ acb->device_map[target];
1789 			for(lun=0; lun < ARCMSR_MAX_TARGETLUN; lun++)
1790 			{
1791 				bit_check = (1 << lun);		/*check bit from 0....31*/
1792 				if(difference & bit_check)
1793 				{
1794 					if(acb->device_map[target] & bit_check)
1795 					{/* unit departed */
1796 						printf("arcmsr_dr_handle: Target=%x, lun=%x, GONE!!!\n",target,lun);
1797 						arcmsr_abort_dr_ccbs(acb, target, lun);
1798 						arcmsr_rescan_lun(acb, target, lun);
1799 						acb->devstate[target][lun] = ARECA_RAID_GONE;
1800 					}
1801 					else
1802 					{/* unit arrived */
1803 						printf("arcmsr_dr_handle: Target=%x, lun=%x, Plug-IN!!!\n",target,lun);
1804 						arcmsr_rescan_lun(acb, target, lun);
1805 						acb->devstate[target][lun] = ARECA_RAID_GOOD;
1806 					}
1807 				}
1808 			}
1809 /*			printf("arcmsr_dr_handle: acb->device_map[%x]=0x%x, deviceMapCurrent[%x]=%x\n",target,acb->device_map[target],target,*pDevMap); */
1810 			acb->device_map[target] = *pDevMap;
1811 		}
1812 		pDevMap++;
1813 	}
1814 }
1815 /*
1816 **************************************************************************
1817 **************************************************************************
1818 */
1819 static void arcmsr_hba_message_isr(struct AdapterControlBlock *acb) {
1820 	u_int32_t outbound_message;
1821 
1822 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, ARCMSR_MU_OUTBOUND_MESSAGE0_INT);
1823 	outbound_message = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[0]);
1824 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1825 		arcmsr_dr_handle( acb );
1826 }
1827 /*
1828 **************************************************************************
1829 **************************************************************************
1830 */
1831 static void arcmsr_hbb_message_isr(struct AdapterControlBlock *acb) {
1832 	u_int32_t outbound_message;
1833 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1834 
1835 	/* clear interrupts */
1836 	WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_MESSAGE_INT_CLEAR_PATTERN);
1837 	outbound_message = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[0]);
1838 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1839 		arcmsr_dr_handle( acb );
1840 }
1841 /*
1842 **************************************************************************
1843 **************************************************************************
1844 */
1845 static void arcmsr_hbc_message_isr(struct AdapterControlBlock *acb) {
1846 	u_int32_t outbound_message;
1847 
1848 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, outbound_doorbell_clear, ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR);
1849 	outbound_message = CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[0]);
1850 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1851 		arcmsr_dr_handle( acb );
1852 }
1853 /*
1854 **************************************************************************
1855 **************************************************************************
1856 */
1857 static void arcmsr_hbd_message_isr(struct AdapterControlBlock *acb) {
1858 	u_int32_t outbound_message;
1859 
1860 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE_CLEAR);
1861 	outbound_message = CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[0]);
1862 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1863 		arcmsr_dr_handle( acb );
1864 }
1865 /*
1866 **************************************************************************
1867 **************************************************************************
1868 */
1869 static void arcmsr_hbe_message_isr(struct AdapterControlBlock *acb) {
1870 	u_int32_t outbound_message;
1871 
1872 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_status, 0);
1873 	outbound_message = CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[0]);
1874 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1875 		arcmsr_dr_handle( acb );
1876 }
1877 /*
1878 **************************************************************************
1879 **************************************************************************
1880 */
1881 static void arcmsr_hba_doorbell_isr(struct AdapterControlBlock *acb)
1882 {
1883 	u_int32_t doorbell_status;
1884 
1885 	/*
1886 	*******************************************************************
1887 	**  Maybe here we need to check wrqbuffer_lock is lock or not
1888 	**  DOORBELL: din! don!
1889 	**  check if there are any mail need to pack from firmware
1890 	*******************************************************************
1891 	*/
1892 	doorbell_status = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_doorbell);
1893 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_doorbell, doorbell_status); /* clear doorbell interrupt */
1894 	if(doorbell_status & ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK) {
1895 		arcmsr_iop2drv_data_wrote_handle(acb);
1896 	}
1897 	if(doorbell_status & ARCMSR_OUTBOUND_IOP331_DATA_READ_OK) {
1898 		arcmsr_iop2drv_data_read_handle(acb);
1899 	}
1900 }
1901 /*
1902 **************************************************************************
1903 **************************************************************************
1904 */
1905 static void arcmsr_hbc_doorbell_isr(struct AdapterControlBlock *acb)
1906 {
1907 	u_int32_t doorbell_status;
1908 
1909 	/*
1910 	*******************************************************************
1911 	**  Maybe here we need to check wrqbuffer_lock is lock or not
1912 	**  DOORBELL: din! don!
1913 	**  check if there are any mail need to pack from firmware
1914 	*******************************************************************
1915 	*/
1916 	doorbell_status = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_doorbell);
1917 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, outbound_doorbell_clear, doorbell_status); /* clear doorbell interrupt */
1918 	if(doorbell_status & ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK) {
1919 		arcmsr_iop2drv_data_wrote_handle(acb);
1920 	}
1921 	if(doorbell_status & ARCMSR_HBCMU_IOP2DRV_DATA_READ_OK) {
1922 		arcmsr_iop2drv_data_read_handle(acb);
1923 	}
1924 	if(doorbell_status & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
1925 		arcmsr_hbc_message_isr(acb);    /* messenger of "driver to iop commands" */
1926 	}
1927 }
1928 /*
1929 **************************************************************************
1930 **************************************************************************
1931 */
1932 static void arcmsr_hbd_doorbell_isr(struct AdapterControlBlock *acb)
1933 {
1934 	u_int32_t doorbell_status;
1935 
1936 	/*
1937 	*******************************************************************
1938 	**  Maybe here we need to check wrqbuffer_lock is lock or not
1939 	**  DOORBELL: din! don!
1940 	**  check if there are any mail need to pack from firmware
1941 	*******************************************************************
1942 	*/
1943 	doorbell_status = CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBDMU_F0_DOORBELL_CAUSE;
1944 	if(doorbell_status)
1945 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, doorbell_status); /* clear doorbell interrupt */
1946 	while( doorbell_status & ARCMSR_HBDMU_F0_DOORBELL_CAUSE ) {
1947 		if(doorbell_status & ARCMSR_HBDMU_IOP2DRV_DATA_WRITE_OK) {
1948 			arcmsr_iop2drv_data_wrote_handle(acb);
1949 		}
1950 		if(doorbell_status & ARCMSR_HBDMU_IOP2DRV_DATA_READ_OK) {
1951 			arcmsr_iop2drv_data_read_handle(acb);
1952 		}
1953 		if(doorbell_status & ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE) {
1954 			arcmsr_hbd_message_isr(acb);    /* messenger of "driver to iop commands" */
1955 		}
1956 		doorbell_status = CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBDMU_F0_DOORBELL_CAUSE;
1957 		if(doorbell_status)
1958 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, doorbell_status); /* clear doorbell interrupt */
1959 	}
1960 }
1961 /*
1962 **************************************************************************
1963 **************************************************************************
1964 */
1965 static void arcmsr_hbe_doorbell_isr(struct AdapterControlBlock *acb)
1966 {
1967 	u_int32_t doorbell_status, in_doorbell;
1968 
1969 	/*
1970 	*******************************************************************
1971 	**  Maybe here we need to check wrqbuffer_lock is lock or not
1972 	**  DOORBELL: din! don!
1973 	**  check if there are any mail need to pack from firmware
1974 	*******************************************************************
1975 	*/
1976 	in_doorbell = CHIP_REG_READ32(HBE_MessageUnit, 0, iobound_doorbell);
1977 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_status, 0); /* clear doorbell interrupt */
1978 	doorbell_status = in_doorbell ^ acb->in_doorbell;
1979 	if(doorbell_status & ARCMSR_HBEMU_IOP2DRV_DATA_WRITE_OK) {
1980 		arcmsr_iop2drv_data_wrote_handle(acb);
1981 	}
1982 	if(doorbell_status & ARCMSR_HBEMU_IOP2DRV_DATA_READ_OK) {
1983 		arcmsr_iop2drv_data_read_handle(acb);
1984 	}
1985 	if(doorbell_status & ARCMSR_HBEMU_IOP2DRV_MESSAGE_CMD_DONE) {
1986 		arcmsr_hbe_message_isr(acb);    /* messenger of "driver to iop commands" */
1987 	}
1988 	acb->in_doorbell = in_doorbell;
1989 }
1990 /*
1991 **************************************************************************
1992 **************************************************************************
1993 */
1994 static void arcmsr_hba_postqueue_isr(struct AdapterControlBlock *acb)
1995 {
1996 	u_int32_t flag_srb;
1997 	u_int16_t error;
1998 
1999 	/*
2000 	*****************************************************************************
2001 	**               areca cdb command done
2002 	*****************************************************************************
2003 	*/
2004 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap,
2005 		BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
2006 	while((flag_srb = CHIP_REG_READ32(HBA_MessageUnit,
2007 		0, outbound_queueport)) != 0xFFFFFFFF) {
2008 		/* check if command done with no error*/
2009 	error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0) ? TRUE : FALSE;
2010 		arcmsr_drain_donequeue(acb, flag_srb, error);
2011 	}	/*drain reply FIFO*/
2012 }
2013 /*
2014 **************************************************************************
2015 **************************************************************************
2016 */
2017 static void arcmsr_hbb_postqueue_isr(struct AdapterControlBlock *acb)
2018 {
2019 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
2020 	u_int32_t flag_srb;
2021 	int index;
2022 	u_int16_t error;
2023 
2024 	/*
2025 	*****************************************************************************
2026 	**               areca cdb command done
2027 	*****************************************************************************
2028 	*/
2029 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap,
2030 		BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
2031 	index = phbbmu->doneq_index;
2032 	while((flag_srb = phbbmu->done_qbuffer[index]) != 0) {
2033 		phbbmu->done_qbuffer[index] = 0;
2034 		index++;
2035 		index %= ARCMSR_MAX_HBB_POSTQUEUE;     /*if last index number set it to 0 */
2036 		phbbmu->doneq_index = index;
2037 		/* check if command done with no error*/
2038 	error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0)?TRUE:FALSE;
2039 		arcmsr_drain_donequeue(acb, flag_srb, error);
2040 	}	/*drain reply FIFO*/
2041 }
2042 /*
2043 **************************************************************************
2044 **************************************************************************
2045 */
2046 static void arcmsr_hbc_postqueue_isr(struct AdapterControlBlock *acb)
2047 {
2048 	u_int32_t flag_srb,throttling = 0;
2049 	u_int16_t error;
2050 
2051 	/*
2052 	*****************************************************************************
2053 	**               areca cdb command done
2054 	*****************************************************************************
2055 	*/
2056 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
2057 	do {
2058 		flag_srb = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_queueport_low);
2059 		if (flag_srb == 0xFFFFFFFF)
2060 			break;
2061 		/* check if command done with no error*/
2062 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1)?TRUE:FALSE;
2063 		arcmsr_drain_donequeue(acb, flag_srb, error);
2064 		throttling++;
2065 		if(throttling == ARCMSR_HBC_ISR_THROTTLING_LEVEL) {
2066 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell,ARCMSR_HBCMU_DRV2IOP_POSTQUEUE_THROTTLING);
2067 			throttling = 0;
2068 		}
2069 	} while(CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR);
2070 }
2071 /*
2072 **********************************************************************
2073 **
2074 **********************************************************************
2075 */
2076 static uint16_t arcmsr_get_doneq_index(struct HBD_MessageUnit0 *phbdmu)
2077 {
2078 	uint16_t doneq_index, index_stripped;
2079 
2080 	doneq_index = phbdmu->doneq_index;
2081 	if (doneq_index & 0x4000) {
2082 		index_stripped = doneq_index & 0xFF;
2083 		index_stripped += 1;
2084 		index_stripped %= ARCMSR_MAX_HBD_POSTQUEUE;
2085 		phbdmu->doneq_index = index_stripped ?
2086 		    (index_stripped | 0x4000) : index_stripped;
2087 	} else {
2088 		index_stripped = doneq_index;
2089 		index_stripped += 1;
2090 		index_stripped %= ARCMSR_MAX_HBD_POSTQUEUE;
2091 		phbdmu->doneq_index = index_stripped ?
2092 		    index_stripped : (index_stripped | 0x4000);
2093 	}
2094 	return (phbdmu->doneq_index);
2095 }
2096 /*
2097 **************************************************************************
2098 **************************************************************************
2099 */
2100 static void arcmsr_hbd_postqueue_isr(struct AdapterControlBlock *acb)
2101 {
2102 	struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
2103 	u_int32_t outbound_write_pointer;
2104 	u_int32_t addressLow;
2105 	uint16_t doneq_index;
2106 	u_int16_t error;
2107 	/*
2108 	*****************************************************************************
2109 	**               areca cdb command done
2110 	*****************************************************************************
2111 	*/
2112 	if((CHIP_REG_READ32(HBD_MessageUnit, 0, outboundlist_interrupt_cause) &
2113 		ARCMSR_HBDMU_OUTBOUND_LIST_INTERRUPT) == 0)
2114 		return;
2115 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap,
2116 		BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
2117 	outbound_write_pointer = phbdmu->done_qbuffer[0].addressLow;
2118 	doneq_index = phbdmu->doneq_index;
2119 	while ((doneq_index & 0xFF) != (outbound_write_pointer & 0xFF)) {
2120 		doneq_index = arcmsr_get_doneq_index(phbdmu);
2121 		addressLow = phbdmu->done_qbuffer[(doneq_index & 0xFF)+1].addressLow;
2122 		error = (addressLow & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1) ? TRUE : FALSE;
2123 		arcmsr_drain_donequeue(acb, addressLow, error); /*Check if command done with no error */
2124 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, outboundlist_read_pointer, doneq_index);
2125 		outbound_write_pointer = phbdmu->done_qbuffer[0].addressLow;
2126 	}
2127 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, outboundlist_interrupt_cause, ARCMSR_HBDMU_OUTBOUND_LIST_INTERRUPT_CLEAR);
2128 	CHIP_REG_READ32(HBD_MessageUnit, 0, outboundlist_interrupt_cause); /*Dummy ioread32 to force pci flush */
2129 }
2130 /*
2131 **************************************************************************
2132 **************************************************************************
2133 */
2134 static void arcmsr_hbe_postqueue_isr(struct AdapterControlBlock *acb)
2135 {
2136 	u_int16_t error;
2137 	uint32_t doneq_index;
2138 	uint16_t cmdSMID;
2139 
2140 	/*
2141 	*****************************************************************************
2142 	**               areca cdb command done
2143 	*****************************************************************************
2144 	*/
2145 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
2146 	doneq_index = acb->doneq_index;
2147 	while ((CHIP_REG_READ32(HBE_MessageUnit, 0, reply_post_producer_index) & 0xFFFF) != doneq_index) {
2148 		cmdSMID = acb->pCompletionQ[doneq_index].cmdSMID;
2149 		error = (acb->pCompletionQ[doneq_index].cmdFlag & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1) ? TRUE : FALSE;
2150 		arcmsr_drain_donequeue(acb, (u_int32_t)cmdSMID, error);
2151 		doneq_index++;
2152 		if (doneq_index >= acb->completionQ_entry)
2153 			doneq_index = 0;
2154 	}
2155 	acb->doneq_index = doneq_index;
2156 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, reply_post_consumer_index, doneq_index);
2157 }
2158 /*
2159 **********************************************************************
2160 **********************************************************************
2161 */
2162 static void arcmsr_handle_hba_isr( struct AdapterControlBlock *acb)
2163 {
2164 	u_int32_t outbound_intStatus;
2165 	/*
2166 	*********************************************
2167 	**   check outbound intstatus
2168 	*********************************************
2169 	*/
2170 	outbound_intStatus = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intstatus) & acb->outbound_int_enable;
2171 	if(!outbound_intStatus) {
2172 		/*it must be share irq*/
2173 		return;
2174 	}
2175 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, outbound_intStatus); /*clear interrupt*/
2176 	/* MU doorbell interrupts*/
2177 	if(outbound_intStatus & ARCMSR_MU_OUTBOUND_DOORBELL_INT) {
2178 		arcmsr_hba_doorbell_isr(acb);
2179 	}
2180 	/* MU post queue interrupts*/
2181 	if(outbound_intStatus & ARCMSR_MU_OUTBOUND_POSTQUEUE_INT) {
2182 		arcmsr_hba_postqueue_isr(acb);
2183 	}
2184 	if(outbound_intStatus & ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
2185 		arcmsr_hba_message_isr(acb);
2186 	}
2187 }
2188 /*
2189 **********************************************************************
2190 **********************************************************************
2191 */
2192 static void arcmsr_handle_hbb_isr( struct AdapterControlBlock *acb)
2193 {
2194 	u_int32_t outbound_doorbell;
2195 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
2196 	/*
2197 	*********************************************
2198 	**   check outbound intstatus
2199 	*********************************************
2200 	*/
2201 	outbound_doorbell = READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell) & acb->outbound_int_enable;
2202 	if(!outbound_doorbell) {
2203 		/*it must be share irq*/
2204 		return;
2205 	}
2206 	WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ~outbound_doorbell); /* clear doorbell interrupt */
2207 	READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell);
2208 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_END_OF_INTERRUPT);
2209 	/* MU ioctl transfer doorbell interrupts*/
2210 	if(outbound_doorbell & ARCMSR_IOP2DRV_DATA_WRITE_OK) {
2211 		arcmsr_iop2drv_data_wrote_handle(acb);
2212 	}
2213 	if(outbound_doorbell & ARCMSR_IOP2DRV_DATA_READ_OK) {
2214 		arcmsr_iop2drv_data_read_handle(acb);
2215 	}
2216 	/* MU post queue interrupts*/
2217 	if(outbound_doorbell & ARCMSR_IOP2DRV_CDB_DONE) {
2218 		arcmsr_hbb_postqueue_isr(acb);
2219 	}
2220 	if(outbound_doorbell & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
2221 		arcmsr_hbb_message_isr(acb);
2222 	}
2223 }
2224 /*
2225 **********************************************************************
2226 **********************************************************************
2227 */
2228 static void arcmsr_handle_hbc_isr( struct AdapterControlBlock *acb)
2229 {
2230 	u_int32_t host_interrupt_status;
2231 	/*
2232 	*********************************************
2233 	**   check outbound intstatus
2234 	*********************************************
2235 	*/
2236 	host_interrupt_status = CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status) &
2237 		(ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR |
2238 		ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR);
2239 	if(!host_interrupt_status) {
2240 		/*it must be share irq*/
2241 		return;
2242 	}
2243 	do {
2244 		/* MU doorbell interrupts*/
2245 		if(host_interrupt_status & ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR) {
2246 			arcmsr_hbc_doorbell_isr(acb);
2247 		}
2248 		/* MU post queue interrupts*/
2249 		if(host_interrupt_status & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) {
2250 			arcmsr_hbc_postqueue_isr(acb);
2251 		}
2252 		host_interrupt_status = CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status);
2253 	} while (host_interrupt_status & (ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR | ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR));
2254 }
2255 /*
2256 **********************************************************************
2257 **********************************************************************
2258 */
2259 static void arcmsr_handle_hbd_isr( struct AdapterControlBlock *acb)
2260 {
2261 	u_int32_t host_interrupt_status;
2262 	u_int32_t intmask_org;
2263 	/*
2264 	*********************************************
2265 	**   check outbound intstatus
2266 	*********************************************
2267 	*/
2268 	host_interrupt_status = CHIP_REG_READ32(HBD_MessageUnit, 0, host_int_status) & acb->outbound_int_enable;
2269 	if(!(host_interrupt_status & ARCMSR_HBDMU_OUTBOUND_INT)) {
2270 		/*it must be share irq*/
2271 		return;
2272 	}
2273 	/* disable outbound interrupt */
2274 	intmask_org = CHIP_REG_READ32(HBD_MessageUnit, 0, pcief0_int_enable)	; /* disable outbound message0 int */
2275 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, pcief0_int_enable, ARCMSR_HBDMU_ALL_INT_DISABLE);
2276 	/* MU doorbell interrupts*/
2277 	if(host_interrupt_status & ARCMSR_HBDMU_OUTBOUND_DOORBELL_INT) {
2278 		arcmsr_hbd_doorbell_isr(acb);
2279 	}
2280 	/* MU post queue interrupts*/
2281 	if(host_interrupt_status & ARCMSR_HBDMU_OUTBOUND_POSTQUEUE_INT) {
2282 		arcmsr_hbd_postqueue_isr(acb);
2283 	}
2284 	/* enable all outbound interrupt */
2285 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, pcief0_int_enable, intmask_org | ARCMSR_HBDMU_ALL_INT_ENABLE);
2286 //	CHIP_REG_READ32(HBD_MessageUnit, 0, pcief0_int_enable);
2287 }
2288 /*
2289 **********************************************************************
2290 **********************************************************************
2291 */
2292 static void arcmsr_handle_hbe_isr( struct AdapterControlBlock *acb)
2293 {
2294 	u_int32_t host_interrupt_status;
2295 	/*
2296 	*********************************************
2297 	**   check outbound intstatus
2298 	*********************************************
2299 	*/
2300 	host_interrupt_status = CHIP_REG_READ32(HBE_MessageUnit, 0, host_int_status) &
2301 		(ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR |
2302 		ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR);
2303 	if(!host_interrupt_status) {
2304 		/*it must be share irq*/
2305 		return;
2306 	}
2307 	do {
2308 		/* MU doorbell interrupts*/
2309 		if(host_interrupt_status & ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR) {
2310 			arcmsr_hbe_doorbell_isr(acb);
2311 		}
2312 		/* MU post queue interrupts*/
2313 		if(host_interrupt_status & ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR) {
2314 			arcmsr_hbe_postqueue_isr(acb);
2315 		}
2316 		host_interrupt_status = CHIP_REG_READ32(HBE_MessageUnit, 0, host_int_status);
2317 	} while (host_interrupt_status & (ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR | ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR));
2318 }
2319 /*
2320 ******************************************************************************
2321 ******************************************************************************
2322 */
2323 static void arcmsr_interrupt(struct AdapterControlBlock *acb)
2324 {
2325 	switch (acb->adapter_type) {
2326 	case ACB_ADAPTER_TYPE_A:
2327 		arcmsr_handle_hba_isr(acb);
2328 		break;
2329 	case ACB_ADAPTER_TYPE_B:
2330 		arcmsr_handle_hbb_isr(acb);
2331 		break;
2332 	case ACB_ADAPTER_TYPE_C:
2333 		arcmsr_handle_hbc_isr(acb);
2334 		break;
2335 	case ACB_ADAPTER_TYPE_D:
2336 		arcmsr_handle_hbd_isr(acb);
2337 		break;
2338 	case ACB_ADAPTER_TYPE_E:
2339 		arcmsr_handle_hbe_isr(acb);
2340 		break;
2341 	default:
2342 		printf("arcmsr%d: interrupt service,"
2343 		" unknown adapter type =%d\n", acb->pci_unit, acb->adapter_type);
2344 		break;
2345 	}
2346 }
2347 /*
2348 **********************************************************************
2349 **********************************************************************
2350 */
2351 static void arcmsr_intr_handler(void *arg)
2352 {
2353 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *)arg;
2354 
2355 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
2356 	arcmsr_interrupt(acb);
2357 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
2358 }
2359 /*
2360 ******************************************************************************
2361 ******************************************************************************
2362 */
2363 static void	arcmsr_polling_devmap(void *arg)
2364 {
2365 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *)arg;
2366 	switch (acb->adapter_type) {
2367 	case ACB_ADAPTER_TYPE_A:
2368 		CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
2369 		break;
2370 
2371     	case ACB_ADAPTER_TYPE_B: {
2372 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
2373 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_GET_CONFIG);
2374 		}
2375 		break;
2376 
2377 	case ACB_ADAPTER_TYPE_C:
2378 		CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
2379 		CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
2380 		break;
2381 
2382 	case ACB_ADAPTER_TYPE_D:
2383 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
2384 		break;
2385 
2386     	case ACB_ADAPTER_TYPE_E:
2387 		CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
2388 		acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
2389 		CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
2390 	    	break;
2391 	}
2392 
2393 	if((acb->acb_flags & ACB_F_SCSISTOPADAPTER) == 0)
2394 	{
2395 		callout_reset(&acb->devmap_callout, 5 * hz, arcmsr_polling_devmap, acb);	/* polling per 5 seconds */
2396 	}
2397 }
2398 
2399 /*
2400 *******************************************************************************
2401 **
2402 *******************************************************************************
2403 */
2404 static void arcmsr_iop_parking(struct AdapterControlBlock *acb)
2405 {
2406 	u_int32_t intmask_org;
2407 
2408 	if(acb != NULL) {
2409 		/* stop adapter background rebuild */
2410 		if(acb->acb_flags & ACB_F_MSG_START_BGRB) {
2411 			intmask_org = arcmsr_disable_allintr(acb);
2412 			arcmsr_stop_adapter_bgrb(acb);
2413 			arcmsr_flush_adapter_cache(acb);
2414 			arcmsr_enable_allintr(acb, intmask_org);
2415 		}
2416 	}
2417 }
2418 /*
2419 ***********************************************************************
2420 **
2421 ************************************************************************
2422 */
2423 static u_int32_t arcmsr_iop_ioctlcmd(struct AdapterControlBlock *acb, u_int32_t ioctl_cmd, caddr_t arg)
2424 {
2425 	struct CMD_MESSAGE_FIELD *pcmdmessagefld;
2426 	u_int32_t retvalue = EINVAL;
2427 
2428 	pcmdmessagefld = (struct CMD_MESSAGE_FIELD *) arg;
2429 	if(memcmp(pcmdmessagefld->cmdmessage.Signature, "ARCMSR", 6)!=0) {
2430 		return retvalue;
2431 	}
2432 	ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2433 	switch(ioctl_cmd) {
2434 	case ARCMSR_MESSAGE_READ_RQBUFFER: {
2435 			u_int8_t *pQbuffer;
2436 			u_int8_t *ptmpQbuffer = pcmdmessagefld->messagedatabuffer;
2437 			u_int32_t allxfer_len=0;
2438 
2439 			while((acb->rqbuf_firstindex != acb->rqbuf_lastindex)
2440 				&& (allxfer_len < 1031)) {
2441 				/*copy READ QBUFFER to srb*/
2442 				pQbuffer = &acb->rqbuffer[acb->rqbuf_firstindex];
2443 				*ptmpQbuffer = *pQbuffer;
2444 				acb->rqbuf_firstindex++;
2445 				acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
2446 				/*if last index number set it to 0 */
2447 				ptmpQbuffer++;
2448 				allxfer_len++;
2449 			}
2450 			if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2451 				struct QBUFFER *prbuffer;
2452 
2453 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2454 				prbuffer = arcmsr_get_iop_rqbuffer(acb);
2455 				if(arcmsr_Read_iop_rqbuffer_data(acb, prbuffer) == 0)
2456 					acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
2457 			}
2458 			pcmdmessagefld->cmdmessage.Length = allxfer_len;
2459 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2460 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2461 		}
2462 		break;
2463 	case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
2464 			u_int32_t my_empty_len, user_len, wqbuf_firstindex, wqbuf_lastindex;
2465 			u_int8_t *pQbuffer;
2466 			u_int8_t *ptmpuserbuffer = pcmdmessagefld->messagedatabuffer;
2467 
2468 			user_len = pcmdmessagefld->cmdmessage.Length;
2469 			/*check if data xfer length of this request will overflow my array qbuffer */
2470 			wqbuf_lastindex = acb->wqbuf_lastindex;
2471 			wqbuf_firstindex = acb->wqbuf_firstindex;
2472 			if(wqbuf_lastindex != wqbuf_firstindex) {
2473 				arcmsr_Write_data_2iop_wqbuffer(acb);
2474 				pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_ERROR;
2475 			} else {
2476 				my_empty_len = (wqbuf_firstindex - wqbuf_lastindex - 1) &
2477 					(ARCMSR_MAX_QBUFFER - 1);
2478 				if(my_empty_len >= user_len) {
2479 					while(user_len > 0) {
2480 						/*copy srb data to wqbuffer*/
2481 						pQbuffer = &acb->wqbuffer[acb->wqbuf_lastindex];
2482 						*pQbuffer = *ptmpuserbuffer;
2483 						acb->wqbuf_lastindex++;
2484 						acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
2485 						/*if last index number set it to 0 */
2486 						ptmpuserbuffer++;
2487 						user_len--;
2488 					}
2489 					/*post fist Qbuffer*/
2490 					if(acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
2491 						acb->acb_flags &= ~ACB_F_MESSAGE_WQBUFFER_CLEARED;
2492 						arcmsr_Write_data_2iop_wqbuffer(acb);
2493 					}
2494 					pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2495 				} else {
2496 					pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_ERROR;
2497 				}
2498 			}
2499 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2500 		}
2501 		break;
2502 	case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
2503 			u_int8_t *pQbuffer = acb->rqbuffer;
2504 
2505 			if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2506 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2507 				arcmsr_iop_message_read(acb);
2508 				/*signature, let IOP know data has been readed */
2509 			}
2510 			acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
2511 			acb->rqbuf_firstindex = 0;
2512 			acb->rqbuf_lastindex = 0;
2513 			memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
2514 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2515 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2516 		}
2517 		break;
2518 	case ARCMSR_MESSAGE_CLEAR_WQBUFFER:
2519 		{
2520 			u_int8_t *pQbuffer = acb->wqbuffer;
2521 
2522 			if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2523 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2524 				arcmsr_iop_message_read(acb);
2525 				/*signature, let IOP know data has been readed */
2526 			}
2527 			acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED|ACB_F_MESSAGE_WQBUFFER_READ);
2528 			acb->wqbuf_firstindex = 0;
2529 			acb->wqbuf_lastindex = 0;
2530 			memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
2531 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2532 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2533 		}
2534 		break;
2535 	case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: {
2536 			u_int8_t *pQbuffer;
2537 
2538 			if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2539 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2540 				arcmsr_iop_message_read(acb);
2541 				/*signature, let IOP know data has been readed */
2542 			}
2543 			acb->acb_flags  |= (ACB_F_MESSAGE_WQBUFFER_CLEARED
2544 					|ACB_F_MESSAGE_RQBUFFER_CLEARED
2545 					|ACB_F_MESSAGE_WQBUFFER_READ);
2546 			acb->rqbuf_firstindex = 0;
2547 			acb->rqbuf_lastindex = 0;
2548 			acb->wqbuf_firstindex = 0;
2549 			acb->wqbuf_lastindex = 0;
2550 			pQbuffer = acb->rqbuffer;
2551 			memset(pQbuffer, 0, sizeof(struct QBUFFER));
2552 			pQbuffer = acb->wqbuffer;
2553 			memset(pQbuffer, 0, sizeof(struct QBUFFER));
2554 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2555 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2556 		}
2557 		break;
2558 	case ARCMSR_MESSAGE_REQUEST_RETURNCODE_3F: {
2559 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_3F;
2560 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2561 		}
2562 		break;
2563 	case ARCMSR_MESSAGE_SAY_HELLO: {
2564 			u_int8_t *hello_string = "Hello! I am ARCMSR";
2565 			u_int8_t *puserbuffer = (u_int8_t *)pcmdmessagefld->messagedatabuffer;
2566 
2567 			if(memcpy(puserbuffer, hello_string, (int16_t)strlen(hello_string))) {
2568 				pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_ERROR;
2569 				ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2570 				return ENOIOCTL;
2571 			}
2572 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2573 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2574 		}
2575 		break;
2576 	case ARCMSR_MESSAGE_SAY_GOODBYE: {
2577 			arcmsr_iop_parking(acb);
2578 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2579 		}
2580 		break;
2581 	case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE: {
2582 			arcmsr_flush_adapter_cache(acb);
2583 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2584 		}
2585 		break;
2586 	}
2587 	ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2588 	return (retvalue);
2589 }
2590 /*
2591 **************************************************************************
2592 **************************************************************************
2593 */
2594 static void arcmsr_free_srb(struct CommandControlBlock *srb)
2595 {
2596 	struct AdapterControlBlock	*acb;
2597 
2598 	acb = srb->acb;
2599 	ARCMSR_LOCK_ACQUIRE(&acb->srb_lock);
2600 	srb->srb_state = ARCMSR_SRB_DONE;
2601 	srb->srb_flags = 0;
2602 	acb->srbworkingQ[acb->workingsrb_doneindex] = srb;
2603 	acb->workingsrb_doneindex++;
2604 	acb->workingsrb_doneindex %= ARCMSR_MAX_FREESRB_NUM;
2605 	ARCMSR_LOCK_RELEASE(&acb->srb_lock);
2606 }
2607 /*
2608 **************************************************************************
2609 **************************************************************************
2610 */
2611 static struct CommandControlBlock *arcmsr_get_freesrb(struct AdapterControlBlock *acb)
2612 {
2613 	struct CommandControlBlock *srb = NULL;
2614 	u_int32_t workingsrb_startindex, workingsrb_doneindex;
2615 
2616 	ARCMSR_LOCK_ACQUIRE(&acb->srb_lock);
2617 	workingsrb_doneindex = acb->workingsrb_doneindex;
2618 	workingsrb_startindex = acb->workingsrb_startindex;
2619 	srb = acb->srbworkingQ[workingsrb_startindex];
2620 	workingsrb_startindex++;
2621 	workingsrb_startindex %= ARCMSR_MAX_FREESRB_NUM;
2622 	if(workingsrb_doneindex != workingsrb_startindex) {
2623 		acb->workingsrb_startindex = workingsrb_startindex;
2624 	} else {
2625 		srb = NULL;
2626 	}
2627 	ARCMSR_LOCK_RELEASE(&acb->srb_lock);
2628 	return(srb);
2629 }
2630 /*
2631 **************************************************************************
2632 **************************************************************************
2633 */
2634 static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, union ccb *pccb)
2635 {
2636 	struct CMD_MESSAGE_FIELD *pcmdmessagefld;
2637 	int retvalue = 0, transfer_len = 0;
2638 	char *buffer;
2639 	uint8_t *ptr = scsiio_cdb_ptr(&pccb->csio);
2640 	u_int32_t controlcode = (u_int32_t ) ptr[5] << 24 |
2641 				(u_int32_t ) ptr[6] << 16 |
2642 				(u_int32_t ) ptr[7] << 8  |
2643 				(u_int32_t ) ptr[8];
2644 					/* 4 bytes: Areca io control code */
2645 	if ((pccb->ccb_h.flags & CAM_DATA_MASK) == CAM_DATA_VADDR) {
2646 		buffer = pccb->csio.data_ptr;
2647 		transfer_len = pccb->csio.dxfer_len;
2648 	} else {
2649 		retvalue = ARCMSR_MESSAGE_FAIL;
2650 		goto message_out;
2651 	}
2652 	if (transfer_len > sizeof(struct CMD_MESSAGE_FIELD)) {
2653 		retvalue = ARCMSR_MESSAGE_FAIL;
2654 		goto message_out;
2655 	}
2656 	pcmdmessagefld = (struct CMD_MESSAGE_FIELD *) buffer;
2657 	switch(controlcode) {
2658 	case ARCMSR_MESSAGE_READ_RQBUFFER: {
2659 			u_int8_t *pQbuffer;
2660 			u_int8_t *ptmpQbuffer = pcmdmessagefld->messagedatabuffer;
2661 			int32_t allxfer_len = 0;
2662 
2663 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2664 			while ((acb->rqbuf_firstindex != acb->rqbuf_lastindex)
2665 				&& (allxfer_len < 1031)) {
2666 				pQbuffer = &acb->rqbuffer[acb->rqbuf_firstindex];
2667 				*ptmpQbuffer = *pQbuffer;
2668 				acb->rqbuf_firstindex++;
2669 				acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
2670 				ptmpQbuffer++;
2671 				allxfer_len++;
2672 			}
2673 			if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2674 				struct QBUFFER  *prbuffer;
2675 
2676 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2677 				prbuffer = arcmsr_get_iop_rqbuffer(acb);
2678 				if(arcmsr_Read_iop_rqbuffer_data(acb, prbuffer) == 0)
2679 					acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
2680 			}
2681 			pcmdmessagefld->cmdmessage.Length = allxfer_len;
2682 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2683 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2684 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2685 		}
2686 		break;
2687 	case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
2688 			int32_t my_empty_len, user_len, wqbuf_firstindex, wqbuf_lastindex;
2689 			u_int8_t *pQbuffer;
2690 			u_int8_t *ptmpuserbuffer = pcmdmessagefld->messagedatabuffer;
2691 
2692 			user_len = pcmdmessagefld->cmdmessage.Length;
2693 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2694 			wqbuf_lastindex = acb->wqbuf_lastindex;
2695 			wqbuf_firstindex = acb->wqbuf_firstindex;
2696 			if (wqbuf_lastindex != wqbuf_firstindex) {
2697 				arcmsr_Write_data_2iop_wqbuffer(acb);
2698 				/* has error report sensedata */
2699 				if(pccb->csio.sense_len) {
2700 				((u_int8_t *)&pccb->csio.sense_data)[0] = (0x1 << 7 | 0x70);
2701 				/* Valid,ErrorCode */
2702 				((u_int8_t *)&pccb->csio.sense_data)[2] = 0x05;
2703 				/* FileMark,EndOfMedia,IncorrectLength,Reserved,SenseKey */
2704 				((u_int8_t *)&pccb->csio.sense_data)[7] = 0x0A;
2705 				/* AdditionalSenseLength */
2706 				((u_int8_t *)&pccb->csio.sense_data)[12] = 0x20;
2707 				/* AdditionalSenseCode */
2708 				}
2709 				retvalue = ARCMSR_MESSAGE_FAIL;
2710 			} else {
2711 				my_empty_len = (wqbuf_firstindex-wqbuf_lastindex - 1)
2712 						&(ARCMSR_MAX_QBUFFER - 1);
2713 				if (my_empty_len >= user_len) {
2714 					while (user_len > 0) {
2715 						pQbuffer = &acb->wqbuffer[acb->wqbuf_lastindex];
2716 						*pQbuffer = *ptmpuserbuffer;
2717 						acb->wqbuf_lastindex++;
2718 						acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
2719 						ptmpuserbuffer++;
2720 						user_len--;
2721 					}
2722 					if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
2723 						acb->acb_flags &=
2724 						    ~ACB_F_MESSAGE_WQBUFFER_CLEARED;
2725 						arcmsr_Write_data_2iop_wqbuffer(acb);
2726 					}
2727 				} else {
2728 					/* has error report sensedata */
2729 					if(pccb->csio.sense_len) {
2730 					((u_int8_t *)&pccb->csio.sense_data)[0] = (0x1 << 7 | 0x70);
2731 					/* Valid,ErrorCode */
2732 					((u_int8_t *)&pccb->csio.sense_data)[2] = 0x05;
2733 					/* FileMark,EndOfMedia,IncorrectLength,Reserved,SenseKey */
2734 					((u_int8_t *)&pccb->csio.sense_data)[7] = 0x0A;
2735 					/* AdditionalSenseLength */
2736 					((u_int8_t *)&pccb->csio.sense_data)[12] = 0x20;
2737 					/* AdditionalSenseCode */
2738 					}
2739 					retvalue = ARCMSR_MESSAGE_FAIL;
2740 				}
2741 			}
2742 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2743 		}
2744 		break;
2745 	case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
2746 			u_int8_t *pQbuffer = acb->rqbuffer;
2747 
2748 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2749 			if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2750 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2751 				arcmsr_iop_message_read(acb);
2752 			}
2753 			acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
2754 			acb->rqbuf_firstindex = 0;
2755 			acb->rqbuf_lastindex = 0;
2756 			memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
2757 			pcmdmessagefld->cmdmessage.ReturnCode =
2758 			    ARCMSR_MESSAGE_RETURNCODE_OK;
2759 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2760 		}
2761 		break;
2762 	case ARCMSR_MESSAGE_CLEAR_WQBUFFER: {
2763 			u_int8_t *pQbuffer = acb->wqbuffer;
2764 
2765 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2766 			if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2767 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2768 				arcmsr_iop_message_read(acb);
2769 			}
2770 			acb->acb_flags |=
2771 				(ACB_F_MESSAGE_WQBUFFER_CLEARED |
2772 					ACB_F_MESSAGE_WQBUFFER_READ);
2773 			acb->wqbuf_firstindex = 0;
2774 			acb->wqbuf_lastindex = 0;
2775 			memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
2776 			pcmdmessagefld->cmdmessage.ReturnCode =
2777 				ARCMSR_MESSAGE_RETURNCODE_OK;
2778 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2779 		}
2780 		break;
2781 	case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: {
2782 			u_int8_t *pQbuffer;
2783 
2784 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2785 			if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2786 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2787 				arcmsr_iop_message_read(acb);
2788 			}
2789 			acb->acb_flags |=
2790 				(ACB_F_MESSAGE_WQBUFFER_CLEARED
2791 				| ACB_F_MESSAGE_RQBUFFER_CLEARED
2792 				| ACB_F_MESSAGE_WQBUFFER_READ);
2793 			acb->rqbuf_firstindex = 0;
2794 			acb->rqbuf_lastindex = 0;
2795 			acb->wqbuf_firstindex = 0;
2796 			acb->wqbuf_lastindex = 0;
2797 			pQbuffer = acb->rqbuffer;
2798 			memset(pQbuffer, 0, sizeof (struct QBUFFER));
2799 			pQbuffer = acb->wqbuffer;
2800 			memset(pQbuffer, 0, sizeof (struct QBUFFER));
2801 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2802 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2803 		}
2804 		break;
2805 	case ARCMSR_MESSAGE_REQUEST_RETURNCODE_3F: {
2806 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_3F;
2807 		}
2808 		break;
2809 	case ARCMSR_MESSAGE_SAY_HELLO: {
2810 			int8_t *hello_string = "Hello! I am ARCMSR";
2811 
2812 			memcpy(pcmdmessagefld->messagedatabuffer, hello_string
2813 				, (int16_t)strlen(hello_string));
2814 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2815 		}
2816 		break;
2817 	case ARCMSR_MESSAGE_SAY_GOODBYE:
2818 		arcmsr_iop_parking(acb);
2819 		break;
2820 	case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE:
2821 		arcmsr_flush_adapter_cache(acb);
2822 		break;
2823 	default:
2824 		retvalue = ARCMSR_MESSAGE_FAIL;
2825 	}
2826 message_out:
2827 	return (retvalue);
2828 }
2829 /*
2830 *********************************************************************
2831 *********************************************************************
2832 */
2833 static void arcmsr_execute_srb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
2834 {
2835 	struct CommandControlBlock *srb = (struct CommandControlBlock *)arg;
2836 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *)srb->acb;
2837 	union ccb *pccb;
2838 	int target, lun;
2839 
2840 	pccb = srb->pccb;
2841 	target = pccb->ccb_h.target_id;
2842 	lun = pccb->ccb_h.target_lun;
2843 	acb->pktRequestCount++;
2844 	if(error != 0) {
2845 		if(error != EFBIG) {
2846 			printf("arcmsr%d: unexpected error %x"
2847 				" returned from 'bus_dmamap_load' \n"
2848 				, acb->pci_unit, error);
2849 		}
2850 		if((pccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INPROG) {
2851 			pccb->ccb_h.status |= CAM_REQ_TOO_BIG;
2852 		}
2853 		arcmsr_srb_complete(srb, 0);
2854 		return;
2855 	}
2856 	if(nseg > ARCMSR_MAX_SG_ENTRIES) {
2857 		pccb->ccb_h.status |= CAM_REQ_TOO_BIG;
2858 		arcmsr_srb_complete(srb, 0);
2859 		return;
2860 	}
2861 	if(acb->acb_flags & ACB_F_BUS_RESET) {
2862 		printf("arcmsr%d: bus reset and return busy \n", acb->pci_unit);
2863 		pccb->ccb_h.status |= CAM_SCSI_BUS_RESET;
2864 		arcmsr_srb_complete(srb, 0);
2865 		return;
2866 	}
2867 	if(acb->devstate[target][lun] == ARECA_RAID_GONE) {
2868 		u_int8_t block_cmd, cmd;
2869 
2870 		cmd = scsiio_cdb_ptr(&pccb->csio)[0];
2871 		block_cmd = cmd & 0x0f;
2872 		if(block_cmd == 0x08 || block_cmd == 0x0a) {
2873 			printf("arcmsr%d:block 'read/write' command "
2874 				"with gone raid volume Cmd=0x%2x, TargetId=%d, Lun=%d \n"
2875 				, acb->pci_unit, cmd, target, lun);
2876 			pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
2877 			arcmsr_srb_complete(srb, 0);
2878 			return;
2879 		}
2880 	}
2881 	if((pccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
2882 		if(nseg != 0) {
2883 			bus_dmamap_unload(acb->dm_segs_dmat, srb->dm_segs_dmamap);
2884 		}
2885 		arcmsr_srb_complete(srb, 0);
2886 		return;
2887 	}
2888 	if(acb->srboutstandingcount >= acb->maxOutstanding) {
2889 		if((acb->acb_flags & ACB_F_CAM_DEV_QFRZN) == 0)
2890 		{
2891 			xpt_freeze_simq(acb->psim, 1);
2892 			acb->acb_flags |= ACB_F_CAM_DEV_QFRZN;
2893 		}
2894 		pccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2895 		pccb->ccb_h.status |= CAM_REQUEUE_REQ;
2896 		arcmsr_srb_complete(srb, 0);
2897 		return;
2898 	}
2899 	pccb->ccb_h.status |= CAM_SIM_QUEUED;
2900 	arcmsr_build_srb(srb, dm_segs, nseg);
2901 	arcmsr_post_srb(acb, srb);
2902 	if (pccb->ccb_h.timeout != CAM_TIME_INFINITY)
2903 	{
2904 		arcmsr_callout_init(&srb->ccb_callout);
2905 		callout_reset_sbt(&srb->ccb_callout, SBT_1MS *
2906 		    (pccb->ccb_h.timeout + (ARCMSR_TIMEOUT_DELAY * 1000)), 0,
2907 		    arcmsr_srb_timeout, srb, 0);
2908 		srb->srb_flags |= SRB_FLAG_TIMER_START;
2909 	}
2910 }
2911 /*
2912 *****************************************************************************************
2913 *****************************************************************************************
2914 */
2915 static u_int8_t arcmsr_seek_cmd2abort(union ccb *abortccb)
2916 {
2917 	struct CommandControlBlock *srb;
2918 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *) abortccb->ccb_h.arcmsr_ccbacb_ptr;
2919 	u_int32_t intmask_org;
2920 	int i = 0;
2921 
2922 	acb->num_aborts++;
2923 	/*
2924 	***************************************************************************
2925 	** It is the upper layer do abort command this lock just prior to calling us.
2926 	** First determine if we currently own this command.
2927 	** Start by searching the device queue. If not found
2928 	** at all, and the system wanted us to just abort the
2929 	** command return success.
2930 	***************************************************************************
2931 	*/
2932 	if(acb->srboutstandingcount != 0) {
2933 		/* disable all outbound interrupt */
2934 		intmask_org = arcmsr_disable_allintr(acb);
2935 		for(i=0; i < ARCMSR_MAX_FREESRB_NUM; i++) {
2936 			srb = acb->psrb_pool[i];
2937 			if(srb->srb_state == ARCMSR_SRB_START) {
2938 				if(srb->pccb == abortccb) {
2939 					srb->srb_state = ARCMSR_SRB_ABORTED;
2940 					printf("arcmsr%d:scsi id=%d lun=%jx abort srb '%p'"
2941 						"outstanding command \n"
2942 						, acb->pci_unit, abortccb->ccb_h.target_id
2943 						, (uintmax_t)abortccb->ccb_h.target_lun, srb);
2944 					arcmsr_polling_srbdone(acb, srb);
2945 					/* enable outbound Post Queue, outbound doorbell Interrupt */
2946 					arcmsr_enable_allintr(acb, intmask_org);
2947 					return (TRUE);
2948 				}
2949 			}
2950 		}
2951 		/* enable outbound Post Queue, outbound doorbell Interrupt */
2952 		arcmsr_enable_allintr(acb, intmask_org);
2953 	}
2954 	return(FALSE);
2955 }
2956 /*
2957 ****************************************************************************
2958 ****************************************************************************
2959 */
2960 static void arcmsr_bus_reset(struct AdapterControlBlock *acb)
2961 {
2962 	int retry = 0;
2963 
2964 	acb->num_resets++;
2965 	acb->acb_flags |= ACB_F_BUS_RESET;
2966 	while(acb->srboutstandingcount != 0 && retry < 400) {
2967 		arcmsr_interrupt(acb);
2968 		UDELAY(25000);
2969 		retry++;
2970 	}
2971 	arcmsr_iop_reset(acb);
2972 	acb->acb_flags &= ~ACB_F_BUS_RESET;
2973 }
2974 /*
2975 **************************************************************************
2976 **************************************************************************
2977 */
2978 static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb,
2979 		union ccb *pccb)
2980 {
2981 	if (pccb->ccb_h.target_lun) {
2982 		pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
2983 		xpt_done(pccb);
2984 		return;
2985 	}
2986 	pccb->ccb_h.status |= CAM_REQ_CMP;
2987 	switch (scsiio_cdb_ptr(&pccb->csio)[0]) {
2988 	case INQUIRY: {
2989 		unsigned char inqdata[36];
2990 		char *buffer = pccb->csio.data_ptr;
2991 
2992 		inqdata[0] = T_PROCESSOR;	/* Periph Qualifier & Periph Dev Type */
2993 		inqdata[1] = 0;			/* rem media bit & Dev Type Modifier */
2994 		inqdata[2] = 0;			/* ISO, ECMA, & ANSI versions */
2995 		inqdata[3] = 0;
2996 		inqdata[4] = 31;		/* length of additional data */
2997 		inqdata[5] = 0;
2998 		inqdata[6] = 0;
2999 		inqdata[7] = 0;
3000 		strncpy(&inqdata[8], "Areca   ", 8);	/* Vendor Identification */
3001 		strncpy(&inqdata[16], "RAID controller ", 16);	/* Product Identification */
3002 		strncpy(&inqdata[32], "R001", 4); /* Product Revision */
3003 		memcpy(buffer, inqdata, sizeof(inqdata));
3004 		xpt_done(pccb);
3005 	}
3006 	break;
3007 	case WRITE_BUFFER:
3008 	case READ_BUFFER: {
3009 		if (arcmsr_iop_message_xfer(acb, pccb)) {
3010 			pccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
3011 			pccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
3012 		}
3013 		xpt_done(pccb);
3014 	}
3015 	break;
3016 	default:
3017 		xpt_done(pccb);
3018 	}
3019 }
3020 /*
3021 *********************************************************************
3022 *********************************************************************
3023 */
3024 static void arcmsr_action(struct cam_sim *psim, union ccb *pccb)
3025 {
3026 	struct AdapterControlBlock *acb;
3027 
3028 	acb = (struct AdapterControlBlock *) cam_sim_softc(psim);
3029 	if(acb == NULL) {
3030 		pccb->ccb_h.status |= CAM_REQ_INVALID;
3031 		xpt_done(pccb);
3032 		return;
3033 	}
3034 	switch (pccb->ccb_h.func_code) {
3035 	case XPT_SCSI_IO: {
3036 			struct CommandControlBlock *srb;
3037 			int target = pccb->ccb_h.target_id;
3038 			int error;
3039 
3040 			if (pccb->ccb_h.flags & CAM_CDB_PHYS) {
3041 				pccb->ccb_h.status = CAM_REQ_INVALID;
3042 				xpt_done(pccb);
3043 				return;
3044 			}
3045 
3046 			if(target == 16) {
3047 				/* virtual device for iop message transfer */
3048 				arcmsr_handle_virtual_command(acb, pccb);
3049 				return;
3050 			}
3051 			if((srb = arcmsr_get_freesrb(acb)) == NULL) {
3052 				pccb->ccb_h.status |= CAM_RESRC_UNAVAIL;
3053 				xpt_done(pccb);
3054 				return;
3055 			}
3056 			pccb->ccb_h.arcmsr_ccbsrb_ptr = srb;
3057 			pccb->ccb_h.arcmsr_ccbacb_ptr = acb;
3058 			srb->pccb = pccb;
3059 			error =	bus_dmamap_load_ccb(acb->dm_segs_dmat
3060 				, srb->dm_segs_dmamap
3061 				, pccb
3062 				, arcmsr_execute_srb, srb, /*flags*/0);
3063 			if(error == EINPROGRESS) {
3064 				xpt_freeze_simq(acb->psim, 1);
3065 				pccb->ccb_h.status |= CAM_RELEASE_SIMQ;
3066 			}
3067 			break;
3068 		}
3069 	case XPT_PATH_INQ: {
3070 			struct ccb_pathinq *cpi = &pccb->cpi;
3071 
3072 			cpi->version_num = 1;
3073 			cpi->hba_inquiry = PI_SDTR_ABLE | PI_TAG_ABLE;
3074 			cpi->target_sprt = 0;
3075 			cpi->hba_misc = 0;
3076 			cpi->hba_eng_cnt = 0;
3077 			cpi->max_target = ARCMSR_MAX_TARGETID;        /* 0-16 */
3078 			cpi->max_lun = ARCMSR_MAX_TARGETLUN;	    /* 0-7 */
3079 			cpi->initiator_id = ARCMSR_SCSI_INITIATOR_ID; /* 255 */
3080 			cpi->bus_id = cam_sim_bus(psim);
3081 			strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
3082 			strlcpy(cpi->hba_vid, "ARCMSR", HBA_IDLEN);
3083 			strlcpy(cpi->dev_name, cam_sim_name(psim), DEV_IDLEN);
3084 			cpi->unit_number = cam_sim_unit(psim);
3085 			if(acb->adapter_bus_speed == ACB_BUS_SPEED_12G)
3086 				cpi->base_transfer_speed = 1200000;
3087 			else if(acb->adapter_bus_speed == ACB_BUS_SPEED_6G)
3088 				cpi->base_transfer_speed = 600000;
3089 			else
3090 				cpi->base_transfer_speed = 300000;
3091 			if((acb->vendor_device_id == PCIDevVenIDARC1880) ||
3092 			   (acb->vendor_device_id == PCIDevVenIDARC1884) ||
3093 			   (acb->vendor_device_id == PCIDevVenIDARC1680) ||
3094 			   (acb->vendor_device_id == PCIDevVenIDARC1214))
3095 			{
3096 				cpi->transport = XPORT_SAS;
3097 				cpi->transport_version = 0;
3098 				cpi->protocol_version = SCSI_REV_SPC2;
3099 			}
3100 			else
3101 			{
3102 				cpi->transport = XPORT_SPI;
3103 				cpi->transport_version = 2;
3104 				cpi->protocol_version = SCSI_REV_2;
3105 			}
3106 			cpi->protocol = PROTO_SCSI;
3107 			cpi->ccb_h.status |= CAM_REQ_CMP;
3108 			xpt_done(pccb);
3109 			break;
3110 		}
3111 	case XPT_ABORT: {
3112 			union ccb *pabort_ccb;
3113 
3114 			pabort_ccb = pccb->cab.abort_ccb;
3115 			switch (pabort_ccb->ccb_h.func_code) {
3116 			case XPT_ACCEPT_TARGET_IO:
3117 			case XPT_CONT_TARGET_IO:
3118 				if(arcmsr_seek_cmd2abort(pabort_ccb)==TRUE) {
3119 					pabort_ccb->ccb_h.status |= CAM_REQ_ABORTED;
3120 					xpt_done(pabort_ccb);
3121 					pccb->ccb_h.status |= CAM_REQ_CMP;
3122 				} else {
3123 					xpt_print_path(pabort_ccb->ccb_h.path);
3124 					printf("Not found\n");
3125 					pccb->ccb_h.status |= CAM_PATH_INVALID;
3126 				}
3127 				break;
3128 			case XPT_SCSI_IO:
3129 				pccb->ccb_h.status |= CAM_UA_ABORT;
3130 				break;
3131 			default:
3132 				pccb->ccb_h.status |= CAM_REQ_INVALID;
3133 				break;
3134 			}
3135 			xpt_done(pccb);
3136 			break;
3137 		}
3138 	case XPT_RESET_BUS:
3139 	case XPT_RESET_DEV: {
3140 			u_int32_t	i;
3141 
3142 			arcmsr_bus_reset(acb);
3143 			for (i=0; i < 500; i++) {
3144 				DELAY(1000);
3145 			}
3146 			pccb->ccb_h.status |= CAM_REQ_CMP;
3147 			xpt_done(pccb);
3148 			break;
3149 		}
3150 	case XPT_TERM_IO: {
3151 			pccb->ccb_h.status |= CAM_REQ_INVALID;
3152 			xpt_done(pccb);
3153 			break;
3154 		}
3155 	case XPT_GET_TRAN_SETTINGS: {
3156 			struct ccb_trans_settings *cts;
3157 
3158 			if(pccb->ccb_h.target_id == 16) {
3159 				pccb->ccb_h.status |= CAM_FUNC_NOTAVAIL;
3160 				xpt_done(pccb);
3161 				break;
3162 			}
3163 			cts = &pccb->cts;
3164 			{
3165 				struct ccb_trans_settings_scsi *scsi;
3166 				struct ccb_trans_settings_spi *spi;
3167 				struct ccb_trans_settings_sas *sas;
3168 
3169 				scsi = &cts->proto_specific.scsi;
3170 				scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3171 				scsi->valid = CTS_SCSI_VALID_TQ;
3172 				cts->protocol = PROTO_SCSI;
3173 
3174 				if((acb->vendor_device_id == PCIDevVenIDARC1880) ||
3175 				   (acb->vendor_device_id == PCIDevVenIDARC1884) ||
3176 				   (acb->vendor_device_id == PCIDevVenIDARC1680) ||
3177 				   (acb->vendor_device_id == PCIDevVenIDARC1214))
3178 				{
3179 					cts->protocol_version = SCSI_REV_SPC2;
3180 					cts->transport_version = 0;
3181 					cts->transport = XPORT_SAS;
3182 					sas = &cts->xport_specific.sas;
3183 					sas->valid = CTS_SAS_VALID_SPEED;
3184 					if (acb->adapter_bus_speed == ACB_BUS_SPEED_12G)
3185 						sas->bitrate = 1200000;
3186 					else if(acb->adapter_bus_speed == ACB_BUS_SPEED_6G)
3187 						sas->bitrate = 600000;
3188 					else if(acb->adapter_bus_speed == ACB_BUS_SPEED_3G)
3189 						sas->bitrate = 300000;
3190 				}
3191 				else
3192 				{
3193 					cts->protocol_version = SCSI_REV_2;
3194 					cts->transport_version = 2;
3195 					cts->transport = XPORT_SPI;
3196 					spi = &cts->xport_specific.spi;
3197 					spi->flags = CTS_SPI_FLAGS_DISC_ENB;
3198 					if (acb->adapter_bus_speed == ACB_BUS_SPEED_6G)
3199 						spi->sync_period = 1;
3200 					else
3201 						spi->sync_period = 2;
3202 					spi->sync_offset = 32;
3203 					spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3204 					spi->valid = CTS_SPI_VALID_DISC
3205 						| CTS_SPI_VALID_SYNC_RATE
3206 						| CTS_SPI_VALID_SYNC_OFFSET
3207 						| CTS_SPI_VALID_BUS_WIDTH;
3208 				}
3209 			}
3210 			pccb->ccb_h.status |= CAM_REQ_CMP;
3211 			xpt_done(pccb);
3212 			break;
3213 		}
3214 	case XPT_SET_TRAN_SETTINGS: {
3215 			pccb->ccb_h.status |= CAM_FUNC_NOTAVAIL;
3216 			xpt_done(pccb);
3217 			break;
3218 		}
3219 	case XPT_CALC_GEOMETRY:
3220 			if(pccb->ccb_h.target_id == 16) {
3221 				pccb->ccb_h.status |= CAM_FUNC_NOTAVAIL;
3222 				xpt_done(pccb);
3223 				break;
3224 			}
3225 			cam_calc_geometry(&pccb->ccg, 1);
3226 			xpt_done(pccb);
3227 			break;
3228 	default:
3229 		pccb->ccb_h.status |= CAM_REQ_INVALID;
3230 		xpt_done(pccb);
3231 		break;
3232 	}
3233 }
3234 /*
3235 **********************************************************************
3236 **********************************************************************
3237 */
3238 static void arcmsr_start_hba_bgrb(struct AdapterControlBlock *acb)
3239 {
3240 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3241 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_START_BGRB);
3242 	if(!arcmsr_hba_wait_msgint_ready(acb)) {
3243 		printf("arcmsr%d: wait 'start adapter background rebulid' timeout \n", acb->pci_unit);
3244 	}
3245 }
3246 /*
3247 **********************************************************************
3248 **********************************************************************
3249 */
3250 static void arcmsr_start_hbb_bgrb(struct AdapterControlBlock *acb)
3251 {
3252 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
3253 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3254 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_START_BGRB);
3255 	if(!arcmsr_hbb_wait_msgint_ready(acb)) {
3256 		printf( "arcmsr%d: wait 'start adapter background rebulid' timeout \n", acb->pci_unit);
3257 	}
3258 }
3259 /*
3260 **********************************************************************
3261 **********************************************************************
3262 */
3263 static void arcmsr_start_hbc_bgrb(struct AdapterControlBlock *acb)
3264 {
3265 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3266 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_START_BGRB);
3267 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
3268 	if(!arcmsr_hbc_wait_msgint_ready(acb)) {
3269 		printf("arcmsr%d: wait 'start adapter background rebulid' timeout \n", acb->pci_unit);
3270 	}
3271 }
3272 /*
3273 **********************************************************************
3274 **********************************************************************
3275 */
3276 static void arcmsr_start_hbd_bgrb(struct AdapterControlBlock *acb)
3277 {
3278 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3279 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_START_BGRB);
3280 	if(!arcmsr_hbd_wait_msgint_ready(acb)) {
3281 		printf("arcmsr%d: wait 'start adapter background rebulid' timeout \n", acb->pci_unit);
3282 	}
3283 }
3284 /*
3285 **********************************************************************
3286 **********************************************************************
3287 */
3288 static void arcmsr_start_hbe_bgrb(struct AdapterControlBlock *acb)
3289 {
3290 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3291 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_START_BGRB);
3292 	acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
3293 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
3294 	if(!arcmsr_hbe_wait_msgint_ready(acb)) {
3295 		printf("arcmsr%d: wait 'start adapter background rebulid' timeout \n", acb->pci_unit);
3296 	}
3297 }
3298 /*
3299 **********************************************************************
3300 **********************************************************************
3301 */
3302 static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb)
3303 {
3304 	switch (acb->adapter_type) {
3305 	case ACB_ADAPTER_TYPE_A:
3306 		arcmsr_start_hba_bgrb(acb);
3307 		break;
3308 	case ACB_ADAPTER_TYPE_B:
3309 		arcmsr_start_hbb_bgrb(acb);
3310 		break;
3311 	case ACB_ADAPTER_TYPE_C:
3312 		arcmsr_start_hbc_bgrb(acb);
3313 		break;
3314 	case ACB_ADAPTER_TYPE_D:
3315 		arcmsr_start_hbd_bgrb(acb);
3316 		break;
3317 	case ACB_ADAPTER_TYPE_E:
3318 		arcmsr_start_hbe_bgrb(acb);
3319 		break;
3320 	}
3321 }
3322 /*
3323 **********************************************************************
3324 **
3325 **********************************************************************
3326 */
3327 static void arcmsr_polling_hba_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
3328 {
3329 	struct CommandControlBlock *srb;
3330 	u_int32_t flag_srb, outbound_intstatus, poll_srb_done=0, poll_count=0;
3331 	u_int16_t	error;
3332 
3333 polling_ccb_retry:
3334 	poll_count++;
3335 	outbound_intstatus=CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intstatus) & acb->outbound_int_enable;
3336 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, outbound_intstatus);	/*clear interrupt*/
3337 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
3338 	while(1) {
3339 		if((flag_srb = CHIP_REG_READ32(HBA_MessageUnit,
3340 			0, outbound_queueport)) == 0xFFFFFFFF) {
3341 			if(poll_srb_done) {
3342 				break;/*chip FIFO no ccb for completion already*/
3343 			} else {
3344 				UDELAY(25000);
3345 				if ((poll_count > 100) && (poll_srb != NULL)) {
3346 					break;
3347 				}
3348 				goto polling_ccb_retry;
3349 			}
3350 		}
3351 		/* check if command done with no error*/
3352 		srb = (struct CommandControlBlock *)
3353 			(acb->vir2phy_offset+(flag_srb << 5));/*frame must be 32 bytes aligned*/
3354 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0)?TRUE:FALSE;
3355 		poll_srb_done = (srb == poll_srb) ? 1:0;
3356 		if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
3357 			if(srb->srb_state == ARCMSR_SRB_ABORTED) {
3358 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p'"
3359 					"poll command abort successfully \n"
3360 					, acb->pci_unit
3361 					, srb->pccb->ccb_h.target_id
3362 					, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
3363 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
3364 				arcmsr_srb_complete(srb, 1);
3365 				continue;
3366 			}
3367 			printf("arcmsr%d: polling get an illegal srb command done srb='%p'"
3368 				"srboutstandingcount=%d \n"
3369 				, acb->pci_unit
3370 				, srb, acb->srboutstandingcount);
3371 			continue;
3372 		}
3373 		arcmsr_report_srb_state(acb, srb, error);
3374 	}	/*drain reply FIFO*/
3375 }
3376 /*
3377 **********************************************************************
3378 **
3379 **********************************************************************
3380 */
3381 static void arcmsr_polling_hbb_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
3382 {
3383 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
3384 	struct CommandControlBlock *srb;
3385 	u_int32_t flag_srb, poll_srb_done=0, poll_count=0;
3386 	int index;
3387 	u_int16_t	error;
3388 
3389 polling_ccb_retry:
3390 	poll_count++;
3391 	WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_DOORBELL_INT_CLEAR_PATTERN); /* clear doorbell interrupt */
3392 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
3393 	while(1) {
3394 		index = phbbmu->doneq_index;
3395 		if((flag_srb = phbbmu->done_qbuffer[index]) == 0) {
3396 			if(poll_srb_done) {
3397 				break;/*chip FIFO no ccb for completion already*/
3398 			} else {
3399 				UDELAY(25000);
3400 				if ((poll_count > 100) && (poll_srb != NULL)) {
3401 					break;
3402 				}
3403 				goto polling_ccb_retry;
3404 			}
3405 		}
3406 		phbbmu->done_qbuffer[index] = 0;
3407 		index++;
3408 		index %= ARCMSR_MAX_HBB_POSTQUEUE;     /*if last index number set it to 0 */
3409 		phbbmu->doneq_index = index;
3410 		/* check if command done with no error*/
3411 		srb = (struct CommandControlBlock *)
3412 			(acb->vir2phy_offset+(flag_srb << 5));/*frame must be 32 bytes aligned*/
3413 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0)?TRUE:FALSE;
3414 		poll_srb_done = (srb == poll_srb) ? 1:0;
3415 		if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
3416 			if(srb->srb_state == ARCMSR_SRB_ABORTED) {
3417 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p'"
3418 					"poll command abort successfully \n"
3419 					, acb->pci_unit
3420 					, srb->pccb->ccb_h.target_id
3421 					, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
3422 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
3423 				arcmsr_srb_complete(srb, 1);
3424 				continue;
3425 			}
3426 			printf("arcmsr%d: polling get an illegal srb command done srb='%p'"
3427 				"srboutstandingcount=%d \n"
3428 				, acb->pci_unit
3429 				, srb, acb->srboutstandingcount);
3430 			continue;
3431 		}
3432 		arcmsr_report_srb_state(acb, srb, error);
3433 	}	/*drain reply FIFO*/
3434 }
3435 /*
3436 **********************************************************************
3437 **
3438 **********************************************************************
3439 */
3440 static void arcmsr_polling_hbc_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
3441 {
3442 	struct CommandControlBlock *srb;
3443 	u_int32_t flag_srb, poll_srb_done=0, poll_count=0;
3444 	u_int16_t	error;
3445 
3446 polling_ccb_retry:
3447 	poll_count++;
3448 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
3449 	while(1) {
3450 		if(!(CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR)) {
3451 			if(poll_srb_done) {
3452 				break;/*chip FIFO no ccb for completion already*/
3453 			} else {
3454 				UDELAY(25000);
3455 				if ((poll_count > 100) && (poll_srb != NULL)) {
3456 					break;
3457 				}
3458 				if (acb->srboutstandingcount == 0) {
3459 				    break;
3460 				}
3461 				goto polling_ccb_retry;
3462 			}
3463 		}
3464 		flag_srb = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_queueport_low);
3465 		/* check if command done with no error*/
3466 		srb = (struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb & 0xFFFFFFE0));/*frame must be 32 bytes aligned*/
3467 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1)?TRUE:FALSE;
3468 		if (poll_srb != NULL)
3469 			poll_srb_done = (srb == poll_srb) ? 1:0;
3470 		if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
3471 			if(srb->srb_state == ARCMSR_SRB_ABORTED) {
3472 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p'poll command abort successfully \n"
3473 						, acb->pci_unit, srb->pccb->ccb_h.target_id, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
3474 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
3475 				arcmsr_srb_complete(srb, 1);
3476 				continue;
3477 			}
3478 			printf("arcmsr%d: polling get an illegal srb command done srb='%p'srboutstandingcount=%d \n"
3479 					, acb->pci_unit, srb, acb->srboutstandingcount);
3480 			continue;
3481 		}
3482 		arcmsr_report_srb_state(acb, srb, error);
3483 	}	/*drain reply FIFO*/
3484 }
3485 /*
3486 **********************************************************************
3487 **
3488 **********************************************************************
3489 */
3490 static void arcmsr_polling_hbd_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
3491 {
3492 	struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
3493 	struct CommandControlBlock *srb;
3494 	u_int32_t flag_srb, poll_srb_done=0, poll_count=0;
3495 	u_int32_t outbound_write_pointer;
3496 	u_int16_t	error, doneq_index;
3497 
3498 polling_ccb_retry:
3499 	poll_count++;
3500 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
3501 	while(1) {
3502 		outbound_write_pointer = phbdmu->done_qbuffer[0].addressLow;
3503 		doneq_index = phbdmu->doneq_index;
3504 		if ((outbound_write_pointer & 0xFF) == (doneq_index & 0xFF)) {
3505 			if(poll_srb_done) {
3506 				break;/*chip FIFO no ccb for completion already*/
3507 			} else {
3508 				UDELAY(25000);
3509 				if ((poll_count > 100) && (poll_srb != NULL)) {
3510 					break;
3511 				}
3512 				if (acb->srboutstandingcount == 0) {
3513 					break;
3514 				}
3515 				goto polling_ccb_retry;
3516 			}
3517 		}
3518 		doneq_index = arcmsr_get_doneq_index(phbdmu);
3519 		flag_srb = phbdmu->done_qbuffer[(doneq_index & 0xFF)+1].addressLow;
3520 		/* check if command done with no error*/
3521 		srb = (struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb & 0xFFFFFFE0));/*frame must be 32 bytes aligned*/
3522 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1) ? TRUE : FALSE;
3523 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, outboundlist_read_pointer, doneq_index);
3524 		if (poll_srb != NULL)
3525 			poll_srb_done = (srb == poll_srb) ? 1:0;
3526 		if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
3527 			if(srb->srb_state == ARCMSR_SRB_ABORTED) {
3528 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p'poll command abort successfully \n"
3529 						, acb->pci_unit, srb->pccb->ccb_h.target_id, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
3530 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
3531 				arcmsr_srb_complete(srb, 1);
3532 				continue;
3533 			}
3534 			printf("arcmsr%d: polling get an illegal srb command done srb='%p'srboutstandingcount=%d \n"
3535 					, acb->pci_unit, srb, acb->srboutstandingcount);
3536 			continue;
3537 		}
3538 		arcmsr_report_srb_state(acb, srb, error);
3539 	}	/*drain reply FIFO*/
3540 }
3541 /*
3542 **********************************************************************
3543 **
3544 **********************************************************************
3545 */
3546 static void arcmsr_polling_hbe_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
3547 {
3548 	struct CommandControlBlock *srb;
3549 	u_int32_t poll_srb_done=0, poll_count=0, doneq_index;
3550 	u_int16_t	error, cmdSMID;
3551 
3552 polling_ccb_retry:
3553 	poll_count++;
3554 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
3555 	while(1) {
3556 		doneq_index = acb->doneq_index;
3557 		if((CHIP_REG_READ32(HBE_MessageUnit, 0, reply_post_producer_index) & 0xFFFF) == doneq_index) {
3558 			if(poll_srb_done) {
3559 				break;/*chip FIFO no ccb for completion already*/
3560 			} else {
3561 				UDELAY(25000);
3562 			    if ((poll_count > 100) && (poll_srb != NULL)) {
3563 					break;
3564 				}
3565 			    if (acb->srboutstandingcount == 0) {
3566 				    break;
3567 			    }
3568 				goto polling_ccb_retry;
3569 			}
3570 		}
3571 		cmdSMID = acb->pCompletionQ[doneq_index].cmdSMID;
3572 		doneq_index++;
3573 		if (doneq_index >= acb->completionQ_entry)
3574 			doneq_index = 0;
3575 		acb->doneq_index = doneq_index;
3576 		srb = acb->psrb_pool[cmdSMID];
3577 		error = (acb->pCompletionQ[doneq_index].cmdFlag & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1) ? TRUE : FALSE;
3578 		if (poll_srb != NULL)
3579 			poll_srb_done = (srb == poll_srb) ? 1:0;
3580 		if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
3581 			if(srb->srb_state == ARCMSR_SRB_ABORTED) {
3582 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p'poll command abort successfully \n"
3583 						, acb->pci_unit, srb->pccb->ccb_h.target_id, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
3584 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
3585 				arcmsr_srb_complete(srb, 1);
3586 				continue;
3587 			}
3588 			printf("arcmsr%d: polling get an illegal srb command done srb='%p'srboutstandingcount=%d \n"
3589 					, acb->pci_unit, srb, acb->srboutstandingcount);
3590 			continue;
3591 		}
3592 		arcmsr_report_srb_state(acb, srb, error);
3593 	}	/*drain reply FIFO*/
3594 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, reply_post_producer_index, doneq_index);
3595 }
3596 /*
3597 **********************************************************************
3598 **********************************************************************
3599 */
3600 static void arcmsr_polling_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
3601 {
3602 	switch (acb->adapter_type) {
3603 	case ACB_ADAPTER_TYPE_A: {
3604 			arcmsr_polling_hba_srbdone(acb, poll_srb);
3605 		}
3606 		break;
3607 	case ACB_ADAPTER_TYPE_B: {
3608 			arcmsr_polling_hbb_srbdone(acb, poll_srb);
3609 		}
3610 		break;
3611 	case ACB_ADAPTER_TYPE_C: {
3612 			arcmsr_polling_hbc_srbdone(acb, poll_srb);
3613 		}
3614 		break;
3615 	case ACB_ADAPTER_TYPE_D: {
3616 			arcmsr_polling_hbd_srbdone(acb, poll_srb);
3617 		}
3618 		break;
3619 	case ACB_ADAPTER_TYPE_E: {
3620 			arcmsr_polling_hbe_srbdone(acb, poll_srb);
3621 		}
3622 		break;
3623 	}
3624 }
3625 /*
3626 **********************************************************************
3627 **********************************************************************
3628 */
3629 static void arcmsr_get_hba_config(struct AdapterControlBlock *acb)
3630 {
3631 	char *acb_firm_model = acb->firm_model;
3632 	char *acb_firm_version = acb->firm_version;
3633 	char *acb_device_map = acb->device_map;
3634 	size_t iop_firm_model = offsetof(struct HBA_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);	/*firm_model,15,60-67*/
3635 	size_t iop_firm_version = offsetof(struct HBA_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]);	/*firm_version,17,68-83*/
3636 	size_t iop_device_map = offsetof(struct HBA_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3637 	int i;
3638 
3639 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
3640 	if(!arcmsr_hba_wait_msgint_ready(acb)) {
3641 		printf("arcmsr%d: wait 'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3642 	}
3643 	i = 0;
3644 	while(i < 8) {
3645 		*acb_firm_model = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_model+i);
3646 		/* 8 bytes firm_model, 15, 60-67*/
3647 		acb_firm_model++;
3648 		i++;
3649 	}
3650 	i=0;
3651 	while(i < 16) {
3652 		*acb_firm_version = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_version+i);
3653 		/* 16 bytes firm_version, 17, 68-83*/
3654 		acb_firm_version++;
3655 		i++;
3656 	}
3657 	i=0;
3658 	while(i < 16) {
3659 		*acb_device_map = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_device_map+i);
3660 		acb_device_map++;
3661 		i++;
3662 	}
3663 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3664 	acb->firm_request_len = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[1]);   /*firm_request_len, 1, 04-07*/
3665 	acb->firm_numbers_queue = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[2]); /*firm_numbers_queue, 2, 08-11*/
3666 	acb->firm_sdram_size = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[3]);    /*firm_sdram_size, 3, 12-15*/
3667 	acb->firm_ide_channels = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[4]);  /*firm_ide_channels, 4, 16-19*/
3668 	acb->firm_cfg_version = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
3669 	if(acb->firm_numbers_queue > ARCMSR_MAX_OUTSTANDING_CMD)
3670 		acb->maxOutstanding = ARCMSR_MAX_OUTSTANDING_CMD - 1;
3671 	else
3672 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
3673 }
3674 /*
3675 **********************************************************************
3676 **********************************************************************
3677 */
3678 static void arcmsr_get_hbb_config(struct AdapterControlBlock *acb)
3679 {
3680 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
3681 	char *acb_firm_model = acb->firm_model;
3682 	char *acb_firm_version = acb->firm_version;
3683 	char *acb_device_map = acb->device_map;
3684 	size_t iop_firm_model = offsetof(struct HBB_RWBUFFER, msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);	/*firm_model,15,60-67*/
3685 	size_t iop_firm_version = offsetof(struct HBB_RWBUFFER, msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]);	/*firm_version,17,68-83*/
3686 	size_t iop_device_map = offsetof(struct HBB_RWBUFFER, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3687 	int i;
3688 
3689 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_GET_CONFIG);
3690 	if(!arcmsr_hbb_wait_msgint_ready(acb)) {
3691 		printf( "arcmsr%d: wait" "'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3692 	}
3693 	i = 0;
3694 	while(i < 8) {
3695 		*acb_firm_model = bus_space_read_1(acb->btag[1], acb->bhandle[1], iop_firm_model+i);
3696 		/* 8 bytes firm_model, 15, 60-67*/
3697 		acb_firm_model++;
3698 		i++;
3699 	}
3700 	i = 0;
3701 	while(i < 16) {
3702 		*acb_firm_version = bus_space_read_1(acb->btag[1], acb->bhandle[1], iop_firm_version+i);
3703 		/* 16 bytes firm_version, 17, 68-83*/
3704 		acb_firm_version++;
3705 		i++;
3706 	}
3707 	i = 0;
3708 	while(i < 16) {
3709 		*acb_device_map = bus_space_read_1(acb->btag[1], acb->bhandle[1], iop_device_map+i);
3710 		acb_device_map++;
3711 		i++;
3712 	}
3713 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3714 	acb->firm_request_len = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[1]);   /*firm_request_len, 1, 04-07*/
3715 	acb->firm_numbers_queue = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[2]); /*firm_numbers_queue, 2, 08-11*/
3716 	acb->firm_sdram_size = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[3]);    /*firm_sdram_size, 3, 12-15*/
3717 	acb->firm_ide_channels = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[4]);  /*firm_ide_channels, 4, 16-19*/
3718 	acb->firm_cfg_version = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
3719 	if(acb->firm_numbers_queue > ARCMSR_MAX_HBB_POSTQUEUE)
3720 		acb->maxOutstanding = ARCMSR_MAX_HBB_POSTQUEUE - 1;
3721 	else
3722 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
3723 }
3724 /*
3725 **********************************************************************
3726 **********************************************************************
3727 */
3728 static void arcmsr_get_hbc_config(struct AdapterControlBlock *acb)
3729 {
3730 	char *acb_firm_model = acb->firm_model;
3731 	char *acb_firm_version = acb->firm_version;
3732 	char *acb_device_map = acb->device_map;
3733 	size_t iop_firm_model = offsetof(struct HBC_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);   /*firm_model,15,60-67*/
3734 	size_t iop_firm_version = offsetof(struct HBC_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]); /*firm_version,17,68-83*/
3735 	size_t iop_device_map = offsetof(struct HBC_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3736 	int i;
3737 
3738 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
3739 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
3740 	if(!arcmsr_hbc_wait_msgint_ready(acb)) {
3741 		printf("arcmsr%d: wait 'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3742 	}
3743 	i = 0;
3744 	while(i < 8) {
3745 		*acb_firm_model = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_model+i);
3746 		/* 8 bytes firm_model, 15, 60-67*/
3747 		acb_firm_model++;
3748 		i++;
3749 	}
3750 	i = 0;
3751 	while(i < 16) {
3752 		*acb_firm_version = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_version+i);
3753 		/* 16 bytes firm_version, 17, 68-83*/
3754 		acb_firm_version++;
3755 		i++;
3756 	}
3757 	i = 0;
3758 	while(i < 16) {
3759 		*acb_device_map = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_device_map+i);
3760 		acb_device_map++;
3761 		i++;
3762 	}
3763 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3764 	acb->firm_request_len	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[1]);	/*firm_request_len,   1, 04-07*/
3765 	acb->firm_numbers_queue	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[2]);	/*firm_numbers_queue, 2, 08-11*/
3766 	acb->firm_sdram_size	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[3]);	/*firm_sdram_size,    3, 12-15*/
3767 	acb->firm_ide_channels	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[4]);	/*firm_ide_channels,  4, 16-19*/
3768 	acb->firm_cfg_version	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
3769 	if(acb->firm_numbers_queue > ARCMSR_MAX_OUTSTANDING_CMD)
3770 		acb->maxOutstanding = ARCMSR_MAX_OUTSTANDING_CMD - 1;
3771 	else
3772 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
3773 }
3774 /*
3775 **********************************************************************
3776 **********************************************************************
3777 */
3778 static void arcmsr_get_hbd_config(struct AdapterControlBlock *acb)
3779 {
3780 	char *acb_firm_model = acb->firm_model;
3781 	char *acb_firm_version = acb->firm_version;
3782 	char *acb_device_map = acb->device_map;
3783 	size_t iop_firm_model = offsetof(struct HBD_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);   /*firm_model,15,60-67*/
3784 	size_t iop_firm_version = offsetof(struct HBD_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]); /*firm_version,17,68-83*/
3785 	size_t iop_device_map = offsetof(struct HBD_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3786 	int i;
3787 
3788 	if(CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE)
3789 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE_CLEAR);
3790 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
3791 	if(!arcmsr_hbd_wait_msgint_ready(acb)) {
3792 		printf("arcmsr%d: wait 'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3793 	}
3794 	i = 0;
3795 	while(i < 8) {
3796 		*acb_firm_model = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_model+i);
3797 		/* 8 bytes firm_model, 15, 60-67*/
3798 		acb_firm_model++;
3799 		i++;
3800 	}
3801 	i = 0;
3802 	while(i < 16) {
3803 		*acb_firm_version = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_version+i);
3804 		/* 16 bytes firm_version, 17, 68-83*/
3805 		acb_firm_version++;
3806 		i++;
3807 	}
3808 	i = 0;
3809 	while(i < 16) {
3810 		*acb_device_map = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_device_map+i);
3811 		acb_device_map++;
3812 		i++;
3813 	}
3814 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3815 	acb->firm_request_len	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[1]);	/*firm_request_len,   1, 04-07*/
3816 	acb->firm_numbers_queue	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[2]);	/*firm_numbers_queue, 2, 08-11*/
3817 	acb->firm_sdram_size	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[3]);	/*firm_sdram_size,    3, 12-15*/
3818 	acb->firm_ide_channels	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[4]);	/*firm_ide_channels,  4, 16-19*/
3819 	acb->firm_cfg_version	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
3820 	if(acb->firm_numbers_queue > ARCMSR_MAX_HBD_POSTQUEUE)
3821 		acb->maxOutstanding = ARCMSR_MAX_HBD_POSTQUEUE - 1;
3822 	else
3823 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
3824 }
3825 /*
3826 **********************************************************************
3827 **********************************************************************
3828 */
3829 static void arcmsr_get_hbe_config(struct AdapterControlBlock *acb)
3830 {
3831 	char *acb_firm_model = acb->firm_model;
3832 	char *acb_firm_version = acb->firm_version;
3833 	char *acb_device_map = acb->device_map;
3834 	size_t iop_firm_model = offsetof(struct HBE_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);   /*firm_model,15,60-67*/
3835 	size_t iop_firm_version = offsetof(struct HBE_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]); /*firm_version,17,68-83*/
3836 	size_t iop_device_map = offsetof(struct HBE_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3837 	int i;
3838 
3839 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
3840 	acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
3841 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
3842 	if(!arcmsr_hbe_wait_msgint_ready(acb)) {
3843 		printf("arcmsr%d: wait 'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3844 	}
3845 
3846 	i = 0;
3847 	while(i < 8) {
3848 		*acb_firm_model = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_model+i);
3849 		/* 8 bytes firm_model, 15, 60-67*/
3850 		acb_firm_model++;
3851 		i++;
3852 	}
3853 	i = 0;
3854 	while(i < 16) {
3855 		*acb_firm_version = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_version+i);
3856 		/* 16 bytes firm_version, 17, 68-83*/
3857 		acb_firm_version++;
3858 		i++;
3859 	}
3860 	i = 0;
3861 	while(i < 16) {
3862 		*acb_device_map = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_device_map+i);
3863 		acb_device_map++;
3864 		i++;
3865 	}
3866 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3867 	acb->firm_request_len	= CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[1]);	/*firm_request_len,   1, 04-07*/
3868 	acb->firm_numbers_queue	= CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[2]);	/*firm_numbers_queue, 2, 08-11*/
3869 	acb->firm_sdram_size	= CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[3]);	/*firm_sdram_size,    3, 12-15*/
3870 	acb->firm_ide_channels	= CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[4]);	/*firm_ide_channels,  4, 16-19*/
3871 	acb->firm_cfg_version	= CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
3872 	if(acb->firm_numbers_queue > ARCMSR_MAX_OUTSTANDING_CMD)
3873 		acb->maxOutstanding = ARCMSR_MAX_OUTSTANDING_CMD - 1;
3874 	else
3875 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
3876 }
3877 /*
3878 **********************************************************************
3879 **********************************************************************
3880 */
3881 static void arcmsr_get_firmware_spec(struct AdapterControlBlock *acb)
3882 {
3883 	switch (acb->adapter_type) {
3884 	case ACB_ADAPTER_TYPE_A: {
3885 			arcmsr_get_hba_config(acb);
3886 		}
3887 		break;
3888 	case ACB_ADAPTER_TYPE_B: {
3889 			arcmsr_get_hbb_config(acb);
3890 		}
3891 		break;
3892 	case ACB_ADAPTER_TYPE_C: {
3893 			arcmsr_get_hbc_config(acb);
3894 		}
3895 		break;
3896 	case ACB_ADAPTER_TYPE_D: {
3897 			arcmsr_get_hbd_config(acb);
3898 		}
3899 		break;
3900 	case ACB_ADAPTER_TYPE_E: {
3901 			arcmsr_get_hbe_config(acb);
3902 		}
3903 		break;
3904 	}
3905 }
3906 /*
3907 **********************************************************************
3908 **********************************************************************
3909 */
3910 static void arcmsr_wait_firmware_ready( struct AdapterControlBlock *acb)
3911 {
3912 	int	timeout=0;
3913 
3914 	switch (acb->adapter_type) {
3915 	case ACB_ADAPTER_TYPE_A: {
3916 			while ((CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_msgaddr1) & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0)
3917 			{
3918 				if (timeout++ > 2000) /* (2000*15)/1000 = 30 sec */
3919 				{
3920 					printf( "arcmsr%d:timed out waiting for firmware \n", acb->pci_unit);
3921 					return;
3922 				}
3923 				UDELAY(15000); /* wait 15 milli-seconds */
3924 			}
3925 		}
3926 		break;
3927 	case ACB_ADAPTER_TYPE_B: {
3928 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
3929 			while ((READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell) & ARCMSR_MESSAGE_FIRMWARE_OK) == 0)
3930 			{
3931 				if (timeout++ > 2000) /* (2000*15)/1000 = 30 sec */
3932 				{
3933 					printf( "arcmsr%d: timed out waiting for firmware \n", acb->pci_unit);
3934 					return;
3935 				}
3936 				UDELAY(15000); /* wait 15 milli-seconds */
3937 			}
3938 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_END_OF_INTERRUPT);
3939 		}
3940 		break;
3941 	case ACB_ADAPTER_TYPE_C: {
3942 			while ((CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_msgaddr1) & ARCMSR_HBCMU_MESSAGE_FIRMWARE_OK) == 0)
3943 			{
3944 				if (timeout++ > 2000) /* (2000*15)/1000 = 30 sec */
3945 				{
3946 					printf( "arcmsr%d:timed out waiting for firmware ready\n", acb->pci_unit);
3947 					return;
3948 				}
3949 				UDELAY(15000); /* wait 15 milli-seconds */
3950 			}
3951 		}
3952 		break;
3953 	case ACB_ADAPTER_TYPE_D: {
3954 			while ((CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_msgaddr1) & ARCMSR_HBDMU_MESSAGE_FIRMWARE_OK) == 0)
3955 			{
3956 				if (timeout++ > 2000) /* (2000*15)/1000 = 30 sec */
3957 				{
3958 					printf( "arcmsr%d:timed out waiting for firmware ready\n", acb->pci_unit);
3959 					return;
3960 				}
3961 				UDELAY(15000); /* wait 15 milli-seconds */
3962 			}
3963 		}
3964 		break;
3965 	case ACB_ADAPTER_TYPE_E: {
3966 			while ((CHIP_REG_READ32(HBE_MessageUnit, 0, outbound_msgaddr1) & ARCMSR_HBEMU_MESSAGE_FIRMWARE_OK) == 0)
3967 			{
3968 				if (timeout++ > 4000) /* (4000*15)/1000 = 60 sec */
3969 				{
3970 					printf( "arcmsr%d:timed out waiting for firmware ready\n", acb->pci_unit);
3971 					return;
3972 				}
3973 				UDELAY(15000); /* wait 15 milli-seconds */
3974 			}
3975 		}
3976 		break;
3977 	}
3978 }
3979 /*
3980 **********************************************************************
3981 **********************************************************************
3982 */
3983 static void arcmsr_clear_doorbell_queue_buffer( struct AdapterControlBlock *acb)
3984 {
3985 	u_int32_t outbound_doorbell;
3986 
3987 	switch (acb->adapter_type) {
3988 	case ACB_ADAPTER_TYPE_A: {
3989 			/* empty doorbell Qbuffer if door bell ringed */
3990 			outbound_doorbell = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_doorbell);
3991 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_doorbell, outbound_doorbell);	/*clear doorbell interrupt */
3992 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_READ_OK);
3993 		}
3994 		break;
3995 	case ACB_ADAPTER_TYPE_B: {
3996 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
3997 			WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_DOORBELL_INT_CLEAR_PATTERN);/*clear interrupt and message state*/
3998 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_DATA_READ_OK);
3999 			/* let IOP know data has been read */
4000 		}
4001 		break;
4002 	case ACB_ADAPTER_TYPE_C: {
4003 			/* empty doorbell Qbuffer if door bell ringed */
4004 			outbound_doorbell = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_doorbell);
4005 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, outbound_doorbell_clear, outbound_doorbell);	/*clear doorbell interrupt */
4006 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK);
4007 			CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_doorbell_clear); /* Dummy read to force pci flush */
4008 			CHIP_REG_READ32(HBC_MessageUnit, 0, inbound_doorbell); /* Dummy read to force pci flush */
4009 		}
4010 		break;
4011 	case ACB_ADAPTER_TYPE_D: {
4012 			/* empty doorbell Qbuffer if door bell ringed */
4013 			outbound_doorbell = CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell);
4014 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, outbound_doorbell);	/*clear doorbell interrupt */
4015 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_doorbell, ARCMSR_HBDMU_DRV2IOP_DATA_OUT_READ);
4016 		}
4017 		break;
4018 	case ACB_ADAPTER_TYPE_E: {
4019 			/* empty doorbell Qbuffer if door bell ringed */
4020 			acb->in_doorbell = CHIP_REG_READ32(HBE_MessageUnit, 0, iobound_doorbell);
4021 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_status, 0);	/*clear doorbell interrupt */
4022 			acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_READ_OK;
4023 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
4024 		}
4025 		break;
4026 	}
4027 }
4028 /*
4029 ************************************************************************
4030 ************************************************************************
4031 */
4032 static u_int32_t arcmsr_iop_confirm(struct AdapterControlBlock *acb)
4033 {
4034 	unsigned long srb_phyaddr;
4035 	u_int32_t srb_phyaddr_hi32;
4036 	u_int32_t srb_phyaddr_lo32;
4037 
4038 	/*
4039 	********************************************************************
4040 	** here we need to tell iop 331 our freesrb.HighPart
4041 	** if freesrb.HighPart is not zero
4042 	********************************************************************
4043 	*/
4044 	srb_phyaddr = (unsigned long) acb->srb_phyaddr.phyaddr;
4045 	srb_phyaddr_hi32 = acb->srb_phyaddr.B.phyadd_high;
4046 	srb_phyaddr_lo32 = acb->srb_phyaddr.B.phyadd_low;
4047 	switch (acb->adapter_type) {
4048 	case ACB_ADAPTER_TYPE_A: {
4049 			if(srb_phyaddr_hi32 != 0) {
4050 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG);
4051 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, msgcode_rwbuffer[1], srb_phyaddr_hi32);
4052 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_SET_CONFIG);
4053 				if(!arcmsr_hba_wait_msgint_ready(acb)) {
4054 					printf( "arcmsr%d: 'set srb high part physical address' timeout \n", acb->pci_unit);
4055 					return FALSE;
4056 				}
4057 			}
4058 		}
4059 		break;
4060 		/*
4061 		***********************************************************************
4062 		**    if adapter type B, set window of "post command Q"
4063 		***********************************************************************
4064 		*/
4065 	case ACB_ADAPTER_TYPE_B: {
4066 			u_int32_t post_queue_phyaddr;
4067 			struct HBB_MessageUnit *phbbmu;
4068 
4069 			phbbmu = (struct HBB_MessageUnit *)acb->pmu;
4070 			phbbmu->postq_index = 0;
4071 			phbbmu->doneq_index = 0;
4072 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_SET_POST_WINDOW);
4073 			if(!arcmsr_hbb_wait_msgint_ready(acb)) {
4074 				printf( "arcmsr%d: 'set window of post command Q' timeout\n", acb->pci_unit);
4075 				return FALSE;
4076 			}
4077 			post_queue_phyaddr = srb_phyaddr + ARCMSR_SRBS_POOL_SIZE
4078 								+ offsetof(struct HBB_MessageUnit, post_qbuffer);
4079 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG); /* driver "set config" signature */
4080 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[1], srb_phyaddr_hi32); /* normal should be zero */
4081 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[2], post_queue_phyaddr); /* postQ size (256+8)*4 */
4082 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[3], post_queue_phyaddr+1056); /* doneQ size (256+8)*4 */
4083 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[4], 1056); /* srb maxQ size must be --> [(256+8)*4] */
4084 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_SET_CONFIG);
4085 			if(!arcmsr_hbb_wait_msgint_ready(acb)) {
4086 				printf( "arcmsr%d: 'set command Q window' timeout \n", acb->pci_unit);
4087 				return FALSE;
4088 			}
4089 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_START_DRIVER_MODE);
4090 			if(!arcmsr_hbb_wait_msgint_ready(acb)) {
4091 				printf( "arcmsr%d: 'start diver mode' timeout \n", acb->pci_unit);
4092 				return FALSE;
4093 			}
4094 		}
4095 		break;
4096 	case ACB_ADAPTER_TYPE_C: {
4097 			if(srb_phyaddr_hi32 != 0) {
4098 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG);
4099 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, msgcode_rwbuffer[1], srb_phyaddr_hi32);
4100 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_SET_CONFIG);
4101 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell,ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
4102 				if(!arcmsr_hbc_wait_msgint_ready(acb)) {
4103 					printf( "arcmsr%d: 'set srb high part physical address' timeout \n", acb->pci_unit);
4104 					return FALSE;
4105 				}
4106 			}
4107 		}
4108 		break;
4109 	case ACB_ADAPTER_TYPE_D: {
4110 			u_int32_t post_queue_phyaddr, done_queue_phyaddr;
4111 			struct HBD_MessageUnit0 *phbdmu;
4112 
4113 			phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
4114 			phbdmu->postq_index = 0;
4115 			phbdmu->doneq_index = 0x40FF;
4116 			post_queue_phyaddr = srb_phyaddr_lo32 + ARCMSR_SRBS_POOL_SIZE
4117 								+ offsetof(struct HBD_MessageUnit0, post_qbuffer);
4118 			done_queue_phyaddr = srb_phyaddr_lo32 + ARCMSR_SRBS_POOL_SIZE
4119 								+ offsetof(struct HBD_MessageUnit0, done_qbuffer);
4120 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG); /* driver "set config" signature */
4121 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[1], srb_phyaddr_hi32);
4122 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[2], post_queue_phyaddr); /* postQ base */
4123 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[3], done_queue_phyaddr); /* doneQ base */
4124 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[4], 0x100);
4125 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_SET_CONFIG);
4126 			if(!arcmsr_hbd_wait_msgint_ready(acb)) {
4127 				printf( "arcmsr%d: 'set srb high part physical address' timeout \n", acb->pci_unit);
4128 				return FALSE;
4129 			}
4130 		}
4131 		break;
4132 	case ACB_ADAPTER_TYPE_E: {
4133 			u_int32_t cdb_phyaddr_lo32;
4134 			cdb_phyaddr_lo32 = srb_phyaddr_lo32 + offsetof(struct CommandControlBlock, arcmsr_cdb);
4135 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG);
4136 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[1], ARCMSR_SIGNATURE_1884);
4137 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[2], cdb_phyaddr_lo32);
4138 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[3], srb_phyaddr_hi32);
4139 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[4], SRB_SIZE);
4140 			cdb_phyaddr_lo32 = srb_phyaddr_lo32 + ARCMSR_SRBS_POOL_SIZE;
4141 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[5], cdb_phyaddr_lo32);
4142 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[6], srb_phyaddr_hi32);
4143 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[7], COMPLETION_Q_POOL_SIZE);
4144 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_SET_CONFIG);
4145 			acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
4146 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
4147 			if(!arcmsr_hbe_wait_msgint_ready(acb)) {
4148 				printf( "arcmsr%d: 'set srb high part physical address' timeout \n", acb->pci_unit);
4149 				return FALSE;
4150 			}
4151 		}
4152 		break;
4153 	}
4154 	return (TRUE);
4155 }
4156 /*
4157 ************************************************************************
4158 ************************************************************************
4159 */
4160 static void arcmsr_enable_eoi_mode(struct AdapterControlBlock *acb)
4161 {
4162 	if (acb->adapter_type == ACB_ADAPTER_TYPE_B)
4163 	{
4164 		struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
4165 		WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_ACTIVE_EOI_MODE);
4166 		if(!arcmsr_hbb_wait_msgint_ready(acb)) {
4167 			printf( "arcmsr%d: 'iop enable eoi mode' timeout \n", acb->pci_unit);
4168 			return;
4169 		}
4170 	}
4171 }
4172 /*
4173 **********************************************************************
4174 **********************************************************************
4175 */
4176 static void arcmsr_iop_init(struct AdapterControlBlock *acb)
4177 {
4178 	u_int32_t intmask_org;
4179 
4180 	/* disable all outbound interrupt */
4181 	intmask_org = arcmsr_disable_allintr(acb);
4182 	arcmsr_wait_firmware_ready(acb);
4183 	arcmsr_iop_confirm(acb);
4184 	arcmsr_get_firmware_spec(acb);
4185 	/*start background rebuild*/
4186 	arcmsr_start_adapter_bgrb(acb);
4187 	/* empty doorbell Qbuffer if door bell ringed */
4188 	arcmsr_clear_doorbell_queue_buffer(acb);
4189 	arcmsr_enable_eoi_mode(acb);
4190 	/* enable outbound Post Queue, outbound doorbell Interrupt */
4191 	arcmsr_enable_allintr(acb, intmask_org);
4192 	acb->acb_flags |= ACB_F_IOP_INITED;
4193 }
4194 /*
4195 **********************************************************************
4196 **********************************************************************
4197 */
4198 static void arcmsr_map_free_srb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
4199 {
4200 	struct AdapterControlBlock *acb = arg;
4201 	struct CommandControlBlock *srb_tmp;
4202 	u_int32_t i;
4203 	unsigned long srb_phyaddr = (unsigned long)segs->ds_addr;
4204 
4205 	acb->srb_phyaddr.phyaddr = srb_phyaddr;
4206 	srb_tmp = (struct CommandControlBlock *)acb->uncacheptr;
4207 	for(i=0; i < ARCMSR_MAX_FREESRB_NUM; i++) {
4208 		if(bus_dmamap_create(acb->dm_segs_dmat,
4209 			 /*flags*/0, &srb_tmp->dm_segs_dmamap) != 0) {
4210 			acb->acb_flags |= ACB_F_MAPFREESRB_FAILD;
4211 			printf("arcmsr%d:"
4212 			" srb dmamap bus_dmamap_create error\n", acb->pci_unit);
4213 			return;
4214 		}
4215 		if((acb->adapter_type == ACB_ADAPTER_TYPE_C) || (acb->adapter_type == ACB_ADAPTER_TYPE_D)
4216 			 || (acb->adapter_type == ACB_ADAPTER_TYPE_E))
4217 		{
4218 			srb_tmp->cdb_phyaddr_low = srb_phyaddr;
4219 			srb_tmp->cdb_phyaddr_high = (u_int32_t)((srb_phyaddr >> 16) >> 16);
4220 		}
4221 		else
4222 			srb_tmp->cdb_phyaddr_low = srb_phyaddr >> 5;
4223 		srb_tmp->acb = acb;
4224 		srb_tmp->smid = i << 16;
4225 		acb->srbworkingQ[i] = acb->psrb_pool[i] = srb_tmp;
4226 		srb_phyaddr = srb_phyaddr + SRB_SIZE;
4227 		srb_tmp = (struct CommandControlBlock *)((unsigned long)srb_tmp + SRB_SIZE);
4228 	}
4229 	if (acb->adapter_type == ACB_ADAPTER_TYPE_E)
4230 		acb->pCompletionQ = (pCompletion_Q)srb_tmp;
4231 	acb->vir2phy_offset = (unsigned long)srb_tmp - (unsigned long)srb_phyaddr;
4232 }
4233 /*
4234 ************************************************************************
4235 ************************************************************************
4236 */
4237 static void arcmsr_free_resource(struct AdapterControlBlock *acb)
4238 {
4239 	/* remove the control device */
4240 	if(acb->ioctl_dev != NULL) {
4241 		destroy_dev(acb->ioctl_dev);
4242 	}
4243 	bus_dmamap_unload(acb->srb_dmat, acb->srb_dmamap);
4244 	bus_dmamap_destroy(acb->srb_dmat, acb->srb_dmamap);
4245 	bus_dma_tag_destroy(acb->srb_dmat);
4246 	bus_dma_tag_destroy(acb->dm_segs_dmat);
4247 	bus_dma_tag_destroy(acb->parent_dmat);
4248 }
4249 /*
4250 ************************************************************************
4251 ************************************************************************
4252 */
4253 static void arcmsr_mutex_init(struct AdapterControlBlock *acb)
4254 {
4255 	ARCMSR_LOCK_INIT(&acb->isr_lock, "arcmsr isr lock");
4256 	ARCMSR_LOCK_INIT(&acb->srb_lock, "arcmsr srb lock");
4257 	ARCMSR_LOCK_INIT(&acb->postDone_lock, "arcmsr postQ lock");
4258 	ARCMSR_LOCK_INIT(&acb->qbuffer_lock, "arcmsr RW buffer lock");
4259 }
4260 /*
4261 ************************************************************************
4262 ************************************************************************
4263 */
4264 static void arcmsr_mutex_destroy(struct AdapterControlBlock *acb)
4265 {
4266 	ARCMSR_LOCK_DESTROY(&acb->qbuffer_lock);
4267 	ARCMSR_LOCK_DESTROY(&acb->postDone_lock);
4268 	ARCMSR_LOCK_DESTROY(&acb->srb_lock);
4269 	ARCMSR_LOCK_DESTROY(&acb->isr_lock);
4270 }
4271 /*
4272 ************************************************************************
4273 ************************************************************************
4274 */
4275 static u_int32_t arcmsr_initialize(device_t dev)
4276 {
4277 	struct AdapterControlBlock *acb = device_get_softc(dev);
4278 	u_int16_t pci_command;
4279 	int i, j,max_coherent_size;
4280 	u_int32_t vendor_dev_id;
4281 
4282 	vendor_dev_id = pci_get_devid(dev);
4283 	acb->vendor_device_id = vendor_dev_id;
4284 	acb->sub_device_id = pci_read_config(dev, PCIR_SUBDEV_0, 2);
4285 	switch (vendor_dev_id) {
4286 	case PCIDevVenIDARC1880:
4287 	case PCIDevVenIDARC1882:
4288 	case PCIDevVenIDARC1213:
4289 	case PCIDevVenIDARC1223: {
4290 			acb->adapter_type = ACB_ADAPTER_TYPE_C;
4291 			if ((acb->sub_device_id == ARECA_SUB_DEV_ID_1883) ||
4292 			    (acb->sub_device_id == ARECA_SUB_DEV_ID_1216) ||
4293 			    (acb->sub_device_id == ARECA_SUB_DEV_ID_1226))
4294 				acb->adapter_bus_speed = ACB_BUS_SPEED_12G;
4295 			else
4296 				acb->adapter_bus_speed = ACB_BUS_SPEED_6G;
4297 			max_coherent_size = ARCMSR_SRBS_POOL_SIZE;
4298 		}
4299 		break;
4300 	case PCIDevVenIDARC1884:
4301 		acb->adapter_type = ACB_ADAPTER_TYPE_E;
4302 		acb->adapter_bus_speed = ACB_BUS_SPEED_12G;
4303 		max_coherent_size = ARCMSR_SRBS_POOL_SIZE + COMPLETION_Q_POOL_SIZE;
4304 		acb->completionQ_entry = COMPLETION_Q_POOL_SIZE / sizeof(struct deliver_completeQ);
4305 		break;
4306 	case PCIDevVenIDARC1214: {
4307 			acb->adapter_type = ACB_ADAPTER_TYPE_D;
4308 			acb->adapter_bus_speed = ACB_BUS_SPEED_6G;
4309 			max_coherent_size = ARCMSR_SRBS_POOL_SIZE + (sizeof(struct HBD_MessageUnit0));
4310 		}
4311 		break;
4312 	case PCIDevVenIDARC1200:
4313 	case PCIDevVenIDARC1201: {
4314 			acb->adapter_type = ACB_ADAPTER_TYPE_B;
4315 			acb->adapter_bus_speed = ACB_BUS_SPEED_3G;
4316 			max_coherent_size = ARCMSR_SRBS_POOL_SIZE + (sizeof(struct HBB_MessageUnit));
4317 		}
4318 		break;
4319 	case PCIDevVenIDARC1203: {
4320 			acb->adapter_type = ACB_ADAPTER_TYPE_B;
4321 			acb->adapter_bus_speed = ACB_BUS_SPEED_6G;
4322 			max_coherent_size = ARCMSR_SRBS_POOL_SIZE + (sizeof(struct HBB_MessageUnit));
4323 		}
4324 		break;
4325 	case PCIDevVenIDARC1110:
4326 	case PCIDevVenIDARC1120:
4327 	case PCIDevVenIDARC1130:
4328 	case PCIDevVenIDARC1160:
4329 	case PCIDevVenIDARC1170:
4330 	case PCIDevVenIDARC1210:
4331 	case PCIDevVenIDARC1220:
4332 	case PCIDevVenIDARC1230:
4333 	case PCIDevVenIDARC1231:
4334 	case PCIDevVenIDARC1260:
4335 	case PCIDevVenIDARC1261:
4336 	case PCIDevVenIDARC1270:
4337 	case PCIDevVenIDARC1280:
4338 	case PCIDevVenIDARC1212:
4339 	case PCIDevVenIDARC1222:
4340 	case PCIDevVenIDARC1380:
4341 	case PCIDevVenIDARC1381:
4342 	case PCIDevVenIDARC1680:
4343 	case PCIDevVenIDARC1681: {
4344 			acb->adapter_type = ACB_ADAPTER_TYPE_A;
4345 			acb->adapter_bus_speed = ACB_BUS_SPEED_3G;
4346 			max_coherent_size = ARCMSR_SRBS_POOL_SIZE;
4347 		}
4348 		break;
4349 	default: {
4350 			printf("arcmsr%d:"
4351 			" unknown RAID adapter type \n", device_get_unit(dev));
4352 			return ENOMEM;
4353 		}
4354 	}
4355 	if(bus_dma_tag_create(  /*PCI parent*/		bus_get_dma_tag(dev),
4356 				/*alignemnt*/		1,
4357 				/*boundary*/		0,
4358 				/*lowaddr*/		BUS_SPACE_MAXADDR,
4359 				/*highaddr*/		BUS_SPACE_MAXADDR,
4360 				/*filter*/		NULL,
4361 				/*filterarg*/		NULL,
4362 				/*maxsize*/		BUS_SPACE_MAXSIZE_32BIT,
4363 				/*nsegments*/		BUS_SPACE_UNRESTRICTED,
4364 				/*maxsegsz*/		BUS_SPACE_MAXSIZE_32BIT,
4365 				/*flags*/		0,
4366 				/*lockfunc*/		NULL,
4367 				/*lockarg*/		NULL,
4368 							&acb->parent_dmat) != 0)
4369 	{
4370 		printf("arcmsr%d: parent_dmat bus_dma_tag_create failure!\n", device_get_unit(dev));
4371 		return ENOMEM;
4372 	}
4373 
4374 	/* Create a single tag describing a region large enough to hold all of the s/g lists we will need. */
4375 	if(bus_dma_tag_create(  /*parent_dmat*/		acb->parent_dmat,
4376 				/*alignment*/		1,
4377 				/*boundary*/		0,
4378 #ifdef PAE
4379 				/*lowaddr*/		BUS_SPACE_MAXADDR_32BIT,
4380 #else
4381 				/*lowaddr*/		BUS_SPACE_MAXADDR,
4382 #endif
4383 				/*highaddr*/		BUS_SPACE_MAXADDR,
4384 				/*filter*/		NULL,
4385 				/*filterarg*/		NULL,
4386 				/*maxsize*/		ARCMSR_MAX_SG_ENTRIES * PAGE_SIZE * ARCMSR_MAX_FREESRB_NUM,
4387 				/*nsegments*/		ARCMSR_MAX_SG_ENTRIES,
4388 				/*maxsegsz*/		BUS_SPACE_MAXSIZE_32BIT,
4389 				/*flags*/		0,
4390 				/*lockfunc*/		busdma_lock_mutex,
4391 				/*lockarg*/		&acb->isr_lock,
4392 							&acb->dm_segs_dmat) != 0)
4393 	{
4394 		bus_dma_tag_destroy(acb->parent_dmat);
4395 		printf("arcmsr%d: dm_segs_dmat bus_dma_tag_create failure!\n", device_get_unit(dev));
4396 		return ENOMEM;
4397 	}
4398 
4399 	/* DMA tag for our srb structures.... Allocate the freesrb memory */
4400 	if(bus_dma_tag_create(  /*parent_dmat*/		acb->parent_dmat,
4401 				/*alignment*/		0x20,
4402 				/*boundary*/		0,
4403 				/*lowaddr*/		BUS_SPACE_MAXADDR_32BIT,
4404 				/*highaddr*/		BUS_SPACE_MAXADDR,
4405 				/*filter*/		NULL,
4406 				/*filterarg*/		NULL,
4407 				/*maxsize*/		max_coherent_size,
4408 				/*nsegments*/		1,
4409 				/*maxsegsz*/		BUS_SPACE_MAXSIZE_32BIT,
4410 				/*flags*/		0,
4411 				/*lockfunc*/		NULL,
4412 				/*lockarg*/		NULL,
4413 							&acb->srb_dmat) != 0)
4414 	{
4415 		bus_dma_tag_destroy(acb->dm_segs_dmat);
4416 		bus_dma_tag_destroy(acb->parent_dmat);
4417 		printf("arcmsr%d: srb_dmat bus_dma_tag_create failure!\n", device_get_unit(dev));
4418 		return ENXIO;
4419 	}
4420 	/* Allocation for our srbs */
4421 	if(bus_dmamem_alloc(acb->srb_dmat, (void **)&acb->uncacheptr, BUS_DMA_WAITOK | BUS_DMA_COHERENT | BUS_DMA_ZERO, &acb->srb_dmamap) != 0) {
4422 		bus_dma_tag_destroy(acb->srb_dmat);
4423 		bus_dma_tag_destroy(acb->dm_segs_dmat);
4424 		bus_dma_tag_destroy(acb->parent_dmat);
4425 		printf("arcmsr%d: srb_dmat bus_dmamem_alloc failure!\n", device_get_unit(dev));
4426 		return ENXIO;
4427 	}
4428 	/* And permanently map them */
4429 	if(bus_dmamap_load(acb->srb_dmat, acb->srb_dmamap, acb->uncacheptr, max_coherent_size, arcmsr_map_free_srb, acb, /*flags*/0)) {
4430 		bus_dma_tag_destroy(acb->srb_dmat);
4431 		bus_dma_tag_destroy(acb->dm_segs_dmat);
4432 		bus_dma_tag_destroy(acb->parent_dmat);
4433 		printf("arcmsr%d: srb_dmat bus_dmamap_load failure!\n", device_get_unit(dev));
4434 		return ENXIO;
4435 	}
4436 	pci_command = pci_read_config(dev, PCIR_COMMAND, 2);
4437 	pci_command |= PCIM_CMD_BUSMASTEREN;
4438 	pci_command |= PCIM_CMD_PERRESPEN;
4439 	pci_command |= PCIM_CMD_MWRICEN;
4440 	/* Enable Busmaster */
4441 	pci_write_config(dev, PCIR_COMMAND, pci_command, 2);
4442 	switch(acb->adapter_type) {
4443 	case ACB_ADAPTER_TYPE_A: {
4444 		u_int32_t rid0 = PCIR_BAR(0);
4445 		vm_offset_t	mem_base0;
4446 
4447 		acb->sys_res_arcmsr[0] = bus_alloc_resource_any(dev,SYS_RES_MEMORY, &rid0, RF_ACTIVE);
4448 		if(acb->sys_res_arcmsr[0] == NULL) {
4449 			arcmsr_free_resource(acb);
4450 			printf("arcmsr%d: bus_alloc_resource failure!\n", device_get_unit(dev));
4451 			return ENOMEM;
4452 		}
4453 		if(rman_get_start(acb->sys_res_arcmsr[0]) <= 0) {
4454 			arcmsr_free_resource(acb);
4455 			printf("arcmsr%d: rman_get_start failure!\n", device_get_unit(dev));
4456 			return ENXIO;
4457 		}
4458 		mem_base0 = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[0]);
4459 		if(mem_base0 == 0) {
4460 			arcmsr_free_resource(acb);
4461 			printf("arcmsr%d: rman_get_virtual failure!\n", device_get_unit(dev));
4462 			return ENXIO;
4463 		}
4464 		acb->btag[0] = rman_get_bustag(acb->sys_res_arcmsr[0]);
4465 		acb->bhandle[0] = rman_get_bushandle(acb->sys_res_arcmsr[0]);
4466 		acb->pmu = (struct MessageUnit_UNION *)mem_base0;
4467 		acb->rid[0] = rid0;
4468 		}
4469 		break;
4470 	case ACB_ADAPTER_TYPE_B: {
4471 		struct HBB_MessageUnit *phbbmu;
4472 		struct CommandControlBlock *freesrb;
4473 		u_int32_t rid[]={ PCIR_BAR(0), PCIR_BAR(2) };
4474 		vm_offset_t	mem_base[]={0,0};
4475 		for(i=0; i < 2; i++) {
4476 			acb->sys_res_arcmsr[i] = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid[i], RF_ACTIVE);
4477 			if(acb->sys_res_arcmsr[i] == NULL) {
4478 				arcmsr_free_resource(acb);
4479 				printf("arcmsr%d: bus_alloc_resource %d failure!\n", device_get_unit(dev), i);
4480 				return ENOMEM;
4481 			}
4482 			if(rman_get_start(acb->sys_res_arcmsr[i]) <= 0) {
4483 				arcmsr_free_resource(acb);
4484 				printf("arcmsr%d: rman_get_start %d failure!\n", device_get_unit(dev), i);
4485 				return ENXIO;
4486 			}
4487 			mem_base[i] = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[i]);
4488 			if(mem_base[i] == 0) {
4489 				arcmsr_free_resource(acb);
4490 				printf("arcmsr%d: rman_get_virtual %d failure!\n", device_get_unit(dev), i);
4491 				return ENXIO;
4492 			}
4493 			acb->btag[i] = rman_get_bustag(acb->sys_res_arcmsr[i]);
4494 			acb->bhandle[i] = rman_get_bushandle(acb->sys_res_arcmsr[i]);
4495 		}
4496 		freesrb = (struct CommandControlBlock *)acb->uncacheptr;
4497 		acb->pmu = (struct MessageUnit_UNION *)((unsigned long)freesrb+ARCMSR_SRBS_POOL_SIZE);
4498 		phbbmu = (struct HBB_MessageUnit *)acb->pmu;
4499 		phbbmu->hbb_doorbell = (struct HBB_DOORBELL *)mem_base[0];
4500 		phbbmu->hbb_rwbuffer = (struct HBB_RWBUFFER *)mem_base[1];
4501 		if (vendor_dev_id == PCIDevVenIDARC1203) {
4502 			phbbmu->drv2iop_doorbell = offsetof(struct HBB_DOORBELL_1203, drv2iop_doorbell);
4503 			phbbmu->drv2iop_doorbell_mask = offsetof(struct HBB_DOORBELL_1203, drv2iop_doorbell_mask);
4504 			phbbmu->iop2drv_doorbell = offsetof(struct HBB_DOORBELL_1203, iop2drv_doorbell);
4505 			phbbmu->iop2drv_doorbell_mask = offsetof(struct HBB_DOORBELL_1203, iop2drv_doorbell_mask);
4506 		} else {
4507 			phbbmu->drv2iop_doorbell = offsetof(struct HBB_DOORBELL, drv2iop_doorbell);
4508 			phbbmu->drv2iop_doorbell_mask = offsetof(struct HBB_DOORBELL, drv2iop_doorbell_mask);
4509 			phbbmu->iop2drv_doorbell = offsetof(struct HBB_DOORBELL, iop2drv_doorbell);
4510 			phbbmu->iop2drv_doorbell_mask = offsetof(struct HBB_DOORBELL, iop2drv_doorbell_mask);
4511 		}
4512 		acb->rid[0] = rid[0];
4513 		acb->rid[1] = rid[1];
4514 		}
4515 		break;
4516 	case ACB_ADAPTER_TYPE_C: {
4517 		u_int32_t rid0 = PCIR_BAR(1);
4518 		vm_offset_t	mem_base0;
4519 
4520 		acb->sys_res_arcmsr[0] = bus_alloc_resource_any(dev,SYS_RES_MEMORY, &rid0, RF_ACTIVE);
4521 		if(acb->sys_res_arcmsr[0] == NULL) {
4522 			arcmsr_free_resource(acb);
4523 			printf("arcmsr%d: bus_alloc_resource failure!\n", device_get_unit(dev));
4524 			return ENOMEM;
4525 		}
4526 		if(rman_get_start(acb->sys_res_arcmsr[0]) <= 0) {
4527 			arcmsr_free_resource(acb);
4528 			printf("arcmsr%d: rman_get_start failure!\n", device_get_unit(dev));
4529 			return ENXIO;
4530 		}
4531 		mem_base0 = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[0]);
4532 		if(mem_base0 == 0) {
4533 			arcmsr_free_resource(acb);
4534 			printf("arcmsr%d: rman_get_virtual failure!\n", device_get_unit(dev));
4535 			return ENXIO;
4536 		}
4537 		acb->btag[0] = rman_get_bustag(acb->sys_res_arcmsr[0]);
4538 		acb->bhandle[0] = rman_get_bushandle(acb->sys_res_arcmsr[0]);
4539 		acb->pmu = (struct MessageUnit_UNION *)mem_base0;
4540 		acb->rid[0] = rid0;
4541 		}
4542 		break;
4543 	case ACB_ADAPTER_TYPE_D: {
4544 		struct HBD_MessageUnit0 *phbdmu;
4545 		u_int32_t rid0 = PCIR_BAR(0);
4546 		vm_offset_t	mem_base0;
4547 
4548 		acb->sys_res_arcmsr[0] = bus_alloc_resource_any(dev,SYS_RES_MEMORY, &rid0, RF_ACTIVE);
4549 		if(acb->sys_res_arcmsr[0] == NULL) {
4550 			arcmsr_free_resource(acb);
4551 			printf("arcmsr%d: bus_alloc_resource failure!\n", device_get_unit(dev));
4552 			return ENOMEM;
4553 		}
4554 		if(rman_get_start(acb->sys_res_arcmsr[0]) <= 0) {
4555 			arcmsr_free_resource(acb);
4556 			printf("arcmsr%d: rman_get_start failure!\n", device_get_unit(dev));
4557 			return ENXIO;
4558 		}
4559 		mem_base0 = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[0]);
4560 		if(mem_base0 == 0) {
4561 			arcmsr_free_resource(acb);
4562 			printf("arcmsr%d: rman_get_virtual failure!\n", device_get_unit(dev));
4563 			return ENXIO;
4564 		}
4565 		acb->btag[0] = rman_get_bustag(acb->sys_res_arcmsr[0]);
4566 		acb->bhandle[0] = rman_get_bushandle(acb->sys_res_arcmsr[0]);
4567 		acb->pmu = (struct MessageUnit_UNION *)((unsigned long)acb->uncacheptr+ARCMSR_SRBS_POOL_SIZE);
4568 		phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
4569 		phbdmu->phbdmu = (struct HBD_MessageUnit *)mem_base0;
4570 		acb->rid[0] = rid0;
4571 		}
4572 		break;
4573 	case ACB_ADAPTER_TYPE_E: {
4574 		u_int32_t rid0 = PCIR_BAR(1);
4575 		vm_offset_t	mem_base0;
4576 
4577 		acb->sys_res_arcmsr[0] = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid0, RF_ACTIVE);
4578 		if(acb->sys_res_arcmsr[0] == NULL) {
4579 			arcmsr_free_resource(acb);
4580 			printf("arcmsr%d: bus_alloc_resource failure!\n", device_get_unit(dev));
4581 			return ENOMEM;
4582 		}
4583 		if(rman_get_start(acb->sys_res_arcmsr[0]) <= 0) {
4584 			arcmsr_free_resource(acb);
4585 			printf("arcmsr%d: rman_get_start failure!\n", device_get_unit(dev));
4586 			return ENXIO;
4587 		}
4588 		mem_base0 = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[0]);
4589 		if(mem_base0 == 0) {
4590 			arcmsr_free_resource(acb);
4591 			printf("arcmsr%d: rman_get_virtual failure!\n", device_get_unit(dev));
4592 			return ENXIO;
4593 		}
4594 		acb->btag[0] = rman_get_bustag(acb->sys_res_arcmsr[0]);
4595 		acb->bhandle[0] = rman_get_bushandle(acb->sys_res_arcmsr[0]);
4596 		acb->pmu = (struct MessageUnit_UNION *)mem_base0;
4597 		acb->doneq_index = 0;
4598 		acb->in_doorbell = 0;
4599 		acb->out_doorbell = 0;
4600 		acb->rid[0] = rid0;
4601 		CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_status, 0); /*clear interrupt*/
4602 		CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, ARCMSR_HBEMU_DOORBELL_SYNC); /* synchronize doorbell to 0 */
4603 		}
4604 		break;
4605 	}
4606 	if(acb->acb_flags & ACB_F_MAPFREESRB_FAILD) {
4607 		arcmsr_free_resource(acb);
4608 		printf("arcmsr%d: map free srb failure!\n", device_get_unit(dev));
4609 		return ENXIO;
4610 	}
4611 	acb->acb_flags  |= (ACB_F_MESSAGE_WQBUFFER_CLEARED|ACB_F_MESSAGE_RQBUFFER_CLEARED|ACB_F_MESSAGE_WQBUFFER_READ);
4612 	acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER;
4613 	/*
4614 	********************************************************************
4615 	** init raid volume state
4616 	********************************************************************
4617 	*/
4618 	for(i=0; i < ARCMSR_MAX_TARGETID; i++) {
4619 		for(j=0; j < ARCMSR_MAX_TARGETLUN; j++) {
4620 			acb->devstate[i][j] = ARECA_RAID_GONE;
4621 		}
4622 	}
4623 	arcmsr_iop_init(acb);
4624 	return(0);
4625 }
4626 
4627 static int arcmsr_setup_msix(struct AdapterControlBlock *acb)
4628 {
4629 	int i;
4630 
4631 	for (i = 0; i < acb->msix_vectors; i++) {
4632 		acb->irq_id[i] = 1 + i;
4633 		acb->irqres[i] = bus_alloc_resource_any(acb->pci_dev,
4634 		    SYS_RES_IRQ, &acb->irq_id[i], RF_ACTIVE);
4635 		if (acb->irqres[i] == NULL) {
4636 			printf("arcmsr: Can't allocate MSI-X resource\n");
4637 			goto irq_alloc_failed;
4638 		}
4639 		if (bus_setup_intr(acb->pci_dev, acb->irqres[i],
4640 		    INTR_MPSAFE | INTR_TYPE_CAM, NULL, arcmsr_intr_handler,
4641 		    acb, &acb->ih[i])) {
4642 			printf("arcmsr: Cannot set up MSI-X interrupt handler\n");
4643 			goto irq_alloc_failed;
4644 		}
4645 	}
4646 	printf("arcmsr: MSI-X INT enabled\n");
4647 	acb->acb_flags |= ACB_F_MSIX_ENABLED;
4648 	return TRUE;
4649 
4650 irq_alloc_failed:
4651 	arcmsr_teardown_intr(acb->pci_dev, acb);
4652 	return FALSE;
4653 }
4654 
4655 /*
4656 ************************************************************************
4657 ************************************************************************
4658 */
4659 static int arcmsr_attach(device_t dev)
4660 {
4661 	struct AdapterControlBlock *acb=(struct AdapterControlBlock *)device_get_softc(dev);
4662 	u_int32_t unit=device_get_unit(dev);
4663 	struct ccb_setasync csa;
4664 	struct cam_devq	*devq;	/* Device Queue to use for this SIM */
4665 	struct resource	*irqres;
4666 
4667 	if(acb == NULL) {
4668 		printf("arcmsr%d: cannot allocate softc\n", unit);
4669 		return (ENOMEM);
4670 	}
4671 	arcmsr_mutex_init(acb);
4672 	acb->pci_dev = dev;
4673 	acb->pci_unit = unit;
4674 	if(arcmsr_initialize(dev)) {
4675 		printf("arcmsr%d: initialize failure!\n", unit);
4676 		goto initialize_failed;
4677 	}
4678 	/* After setting up the adapter, map our interrupt */
4679 	acb->msix_vectors = ARCMSR_NUM_MSIX_VECTORS;
4680 	if (pci_alloc_msix(dev, &acb->msix_vectors) == 0) {
4681 		if (arcmsr_setup_msix(acb) == TRUE)
4682 			goto irqx;
4683 	}
4684 	acb->irq_id[0] = 0;
4685 	irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ, &acb->irq_id[0], RF_SHAREABLE | RF_ACTIVE);
4686 	if(irqres == NULL ||
4687 		bus_setup_intr(dev, irqres, INTR_TYPE_CAM|INTR_ENTROPY|INTR_MPSAFE, NULL, arcmsr_intr_handler, acb, &acb->ih[0])) {
4688 		printf("arcmsr%d: unable to register interrupt handler!\n", unit);
4689 		goto setup_intr_failed;
4690 	}
4691 	acb->irqres[0] = irqres;
4692 irqx:
4693 	/*
4694 	 * Now let the CAM generic SCSI layer find the SCSI devices on
4695 	 * the bus *  start queue to reset to the idle loop. *
4696 	 * Create device queue of SIM(s) *  (MAX_START_JOB - 1) :
4697 	 * max_sim_transactions
4698 	*/
4699 	devq = cam_simq_alloc(acb->maxOutstanding);
4700 	if(devq == NULL) {
4701 		printf("arcmsr%d: cam_simq_alloc failure!\n", unit);
4702 		goto simq_alloc_failed;
4703 	}
4704 	acb->psim = cam_sim_alloc(arcmsr_action, arcmsr_poll, "arcmsr", acb, unit, &acb->isr_lock, 1, ARCMSR_MAX_OUTSTANDING_CMD, devq);
4705 	if(acb->psim == NULL) {
4706 		printf("arcmsr%d: cam_sim_alloc failure!\n", unit);
4707 		goto sim_alloc_failed;
4708 	}
4709 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
4710 	if(xpt_bus_register(acb->psim, dev, 0) != CAM_SUCCESS) {
4711 		printf("arcmsr%d: xpt_bus_register failure!\n", unit);
4712 		goto xpt_bus_failed;
4713 	}
4714 	if(xpt_create_path(&acb->ppath, /* periph */ NULL, cam_sim_path(acb->psim), CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
4715 		printf("arcmsr%d: xpt_create_path failure!\n", unit);
4716 		goto xpt_path_failed;
4717 	}
4718 	/*
4719 	****************************************************
4720 	*/
4721 	xpt_setup_ccb(&csa.ccb_h, acb->ppath, /*priority*/5);
4722 	csa.ccb_h.func_code = XPT_SASYNC_CB;
4723 	csa.event_enable = AC_FOUND_DEVICE|AC_LOST_DEVICE;
4724 	csa.callback = arcmsr_async;
4725 	csa.callback_arg = acb->psim;
4726 	xpt_action((union ccb *)&csa);
4727 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
4728 	/* Create the control device.  */
4729 	acb->ioctl_dev = make_dev(&arcmsr_cdevsw, unit, UID_ROOT, GID_WHEEL /* GID_OPERATOR */, S_IRUSR | S_IWUSR, "arcmsr%d", unit);
4730 
4731 	(void)make_dev_alias(acb->ioctl_dev, "arc%d", unit);
4732 	arcmsr_callout_init(&acb->devmap_callout);
4733 	callout_reset(&acb->devmap_callout, 60 * hz, arcmsr_polling_devmap, acb);
4734 	return (0);
4735 xpt_path_failed:
4736 	xpt_bus_deregister(cam_sim_path(acb->psim));
4737 xpt_bus_failed:
4738 	cam_sim_free(acb->psim, /* free_simq */ TRUE);
4739 sim_alloc_failed:
4740 	cam_simq_free(devq);
4741 simq_alloc_failed:
4742 	arcmsr_teardown_intr(dev, acb);
4743 setup_intr_failed:
4744 	arcmsr_free_resource(acb);
4745 initialize_failed:
4746 	arcmsr_mutex_destroy(acb);
4747 	return ENXIO;
4748 }
4749 
4750 /*
4751 ************************************************************************
4752 ************************************************************************
4753 */
4754 static int arcmsr_probe(device_t dev)
4755 {
4756 	u_int32_t id;
4757 	u_int16_t sub_device_id;
4758 	static char buf[256];
4759 	char x_type[]={"unknown"};
4760 	char *type;
4761 	int raid6 = 1;
4762 
4763 	if (pci_get_vendor(dev) != PCI_VENDOR_ID_ARECA) {
4764 		return (ENXIO);
4765 	}
4766 	sub_device_id = pci_read_config(dev, PCIR_SUBDEV_0, 2);
4767 	switch(id = pci_get_devid(dev)) {
4768 	case PCIDevVenIDARC1110:
4769 	case PCIDevVenIDARC1200:
4770 	case PCIDevVenIDARC1201:
4771 	case PCIDevVenIDARC1210:
4772 		raid6 = 0;
4773 		/*FALLTHRU*/
4774 	case PCIDevVenIDARC1120:
4775 	case PCIDevVenIDARC1130:
4776 	case PCIDevVenIDARC1160:
4777 	case PCIDevVenIDARC1170:
4778 	case PCIDevVenIDARC1220:
4779 	case PCIDevVenIDARC1230:
4780 	case PCIDevVenIDARC1231:
4781 	case PCIDevVenIDARC1260:
4782 	case PCIDevVenIDARC1261:
4783 	case PCIDevVenIDARC1270:
4784 	case PCIDevVenIDARC1280:
4785 		type = "SATA 3G";
4786 		break;
4787 	case PCIDevVenIDARC1212:
4788 	case PCIDevVenIDARC1222:
4789 	case PCIDevVenIDARC1380:
4790 	case PCIDevVenIDARC1381:
4791 	case PCIDevVenIDARC1680:
4792 	case PCIDevVenIDARC1681:
4793 		type = "SAS 3G";
4794 		break;
4795 	case PCIDevVenIDARC1880:
4796 	case PCIDevVenIDARC1882:
4797 	case PCIDevVenIDARC1213:
4798 	case PCIDevVenIDARC1223:
4799 		if ((sub_device_id == ARECA_SUB_DEV_ID_1883) ||
4800 		    (sub_device_id == ARECA_SUB_DEV_ID_1216) ||
4801 		    (sub_device_id == ARECA_SUB_DEV_ID_1226))
4802 			type = "SAS 12G";
4803 		else
4804 			type = "SAS 6G";
4805 		break;
4806 	case PCIDevVenIDARC1884:
4807 		type = "SAS 12G";
4808 		break;
4809 	case PCIDevVenIDARC1214:
4810 	case PCIDevVenIDARC1203:
4811 		type = "SATA 6G";
4812 		break;
4813 	default:
4814 		type = x_type;
4815 		raid6 = 0;
4816 		break;
4817 	}
4818 	if(type == x_type)
4819 		return(ENXIO);
4820 	sprintf(buf, "Areca %s Host Adapter RAID Controller %s\n%s\n",
4821 		type, raid6 ? "(RAID6 capable)" : "", ARCMSR_DRIVER_VERSION);
4822 	device_set_desc_copy(dev, buf);
4823 	return (BUS_PROBE_DEFAULT);
4824 }
4825 /*
4826 ************************************************************************
4827 ************************************************************************
4828 */
4829 static int arcmsr_shutdown(device_t dev)
4830 {
4831 	u_int32_t  i;
4832 	u_int32_t intmask_org;
4833 	struct CommandControlBlock *srb;
4834 	struct AdapterControlBlock *acb=(struct AdapterControlBlock *)device_get_softc(dev);
4835 
4836 	/* stop adapter background rebuild */
4837 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
4838 	/* disable all outbound interrupt */
4839 	intmask_org = arcmsr_disable_allintr(acb);
4840 	arcmsr_stop_adapter_bgrb(acb);
4841 	arcmsr_flush_adapter_cache(acb);
4842 	/* abort all outstanding command */
4843 	acb->acb_flags |= ACB_F_SCSISTOPADAPTER;
4844 	acb->acb_flags &= ~ACB_F_IOP_INITED;
4845 	if(acb->srboutstandingcount != 0) {
4846 		/*clear and abort all outbound posted Q*/
4847 		arcmsr_done4abort_postqueue(acb);
4848 		/* talk to iop 331 outstanding command aborted*/
4849 		arcmsr_abort_allcmd(acb);
4850 		for(i=0; i < ARCMSR_MAX_FREESRB_NUM; i++) {
4851 			srb = acb->psrb_pool[i];
4852 			if(srb->srb_state == ARCMSR_SRB_START) {
4853 				srb->srb_state = ARCMSR_SRB_ABORTED;
4854 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
4855 				arcmsr_srb_complete(srb, 1);
4856 			}
4857 		}
4858 	}
4859 	acb->srboutstandingcount = 0;
4860 	acb->workingsrb_doneindex = 0;
4861 	acb->workingsrb_startindex = 0;
4862 	acb->pktRequestCount = 0;
4863 	acb->pktReturnCount = 0;
4864 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
4865 	return (0);
4866 }
4867 /*
4868 ************************************************************************
4869 ************************************************************************
4870 */
4871 static void arcmsr_teardown_intr(device_t dev, struct AdapterControlBlock *acb)
4872 {
4873 	int i;
4874 
4875 	if (acb->acb_flags & ACB_F_MSIX_ENABLED) {
4876 		for (i = 0; i < acb->msix_vectors; i++) {
4877 			if (acb->ih[i])
4878 				bus_teardown_intr(dev, acb->irqres[i], acb->ih[i]);
4879 			if (acb->irqres[i] != NULL)
4880 				bus_release_resource(dev, SYS_RES_IRQ,
4881 				    acb->irq_id[i], acb->irqres[i]);
4882 
4883 			acb->ih[i] = NULL;
4884 		}
4885 		pci_release_msi(dev);
4886 	} else {
4887 		if (acb->ih[0])
4888 			bus_teardown_intr(dev, acb->irqres[0], acb->ih[0]);
4889 		if (acb->irqres[0] != NULL)
4890 			bus_release_resource(dev, SYS_RES_IRQ,
4891 			    acb->irq_id[0], acb->irqres[0]);
4892 		acb->ih[0] = NULL;
4893 	}
4894 
4895 }
4896 /*
4897 ************************************************************************
4898 ************************************************************************
4899 */
4900 static int arcmsr_detach(device_t dev)
4901 {
4902 	struct AdapterControlBlock *acb=(struct AdapterControlBlock *)device_get_softc(dev);
4903 	int i;
4904 
4905 	callout_stop(&acb->devmap_callout);
4906 	arcmsr_teardown_intr(dev, acb);
4907 	arcmsr_shutdown(dev);
4908 	arcmsr_free_resource(acb);
4909 	for(i=0; (acb->sys_res_arcmsr[i]!=NULL) && (i<2); i++) {
4910 		bus_release_resource(dev, SYS_RES_MEMORY, acb->rid[i], acb->sys_res_arcmsr[i]);
4911 	}
4912 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
4913 	xpt_async(AC_LOST_DEVICE, acb->ppath, NULL);
4914 	xpt_free_path(acb->ppath);
4915 	xpt_bus_deregister(cam_sim_path(acb->psim));
4916 	cam_sim_free(acb->psim, TRUE);
4917 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
4918 	arcmsr_mutex_destroy(acb);
4919 	return (0);
4920 }
4921 
4922 #ifdef ARCMSR_DEBUG1
4923 static void arcmsr_dump_data(struct AdapterControlBlock *acb)
4924 {
4925 	if((acb->pktRequestCount - acb->pktReturnCount) == 0)
4926 		return;
4927 	printf("Command Request Count   =0x%x\n",acb->pktRequestCount);
4928 	printf("Command Return Count    =0x%x\n",acb->pktReturnCount);
4929 	printf("Command (Req-Rtn) Count =0x%x\n",(acb->pktRequestCount - acb->pktReturnCount));
4930 	printf("Queued Command Count    =0x%x\n",acb->srboutstandingcount);
4931 }
4932 #endif
4933