xref: /freebsd/sys/dev/arcmsr/arcmsr.c (revision f4f33ea0c752ff0f9bfad34991d5bbb54e71133d)
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 #if __FreeBSD_version >= 500005
134 	#include <sys/selinfo.h>
135 	#include <sys/mutex.h>
136 	#include <sys/endian.h>
137 	#include <dev/pci/pcivar.h>
138 	#include <dev/pci/pcireg.h>
139 #else
140 	#include <sys/select.h>
141 	#include <pci/pcivar.h>
142 	#include <pci/pcireg.h>
143 #endif
144 
145 #if !defined(CAM_NEW_TRAN_CODE) && __FreeBSD_version >= 700025
146 #define	CAM_NEW_TRAN_CODE	1
147 #endif
148 
149 #if __FreeBSD_version > 500000
150 #define arcmsr_callout_init(a)	callout_init(a, /*mpsafe*/1);
151 #else
152 #define arcmsr_callout_init(a)	callout_init(a);
153 #endif
154 
155 #define ARCMSR_DRIVER_VERSION	"arcmsr version 1.40.00.01 2017-10-30"
156 #include <dev/arcmsr/arcmsr.h>
157 /*
158 **************************************************************************
159 **************************************************************************
160 */
161 static void arcmsr_free_srb(struct CommandControlBlock *srb);
162 static struct CommandControlBlock *arcmsr_get_freesrb(struct AdapterControlBlock *acb);
163 static u_int8_t arcmsr_seek_cmd2abort(union ccb *abortccb);
164 static int arcmsr_probe(device_t dev);
165 static int arcmsr_attach(device_t dev);
166 static int arcmsr_detach(device_t dev);
167 static u_int32_t arcmsr_iop_ioctlcmd(struct AdapterControlBlock *acb, u_int32_t ioctl_cmd, caddr_t arg);
168 static void arcmsr_iop_parking(struct AdapterControlBlock *acb);
169 static int arcmsr_shutdown(device_t dev);
170 static void arcmsr_interrupt(struct AdapterControlBlock *acb);
171 static void arcmsr_polling_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb);
172 static void arcmsr_free_resource(struct AdapterControlBlock *acb);
173 static void arcmsr_bus_reset(struct AdapterControlBlock *acb);
174 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb);
175 static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb);
176 static void arcmsr_iop_init(struct AdapterControlBlock *acb);
177 static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb);
178 static u_int32_t arcmsr_Read_iop_rqbuffer_data(struct AdapterControlBlock *acb, struct QBUFFER *prbuffer);
179 static void arcmsr_Write_data_2iop_wqbuffer(struct AdapterControlBlock *acb);
180 static void arcmsr_abort_allcmd(struct AdapterControlBlock *acb);
181 static void arcmsr_srb_complete(struct CommandControlBlock *srb, int stand_flag);
182 static void arcmsr_iop_reset(struct AdapterControlBlock *acb);
183 static void arcmsr_report_sense_info(struct CommandControlBlock *srb);
184 static void arcmsr_build_srb(struct CommandControlBlock *srb, bus_dma_segment_t *dm_segs, u_int32_t nseg);
185 static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, union ccb *pccb);
186 static int arcmsr_resume(device_t dev);
187 static int arcmsr_suspend(device_t dev);
188 static void arcmsr_rescanLun_cb(struct cam_periph *periph, union ccb *ccb);
189 static void arcmsr_polling_devmap(void *arg);
190 static void arcmsr_srb_timeout(void *arg);
191 static void arcmsr_hbd_postqueue_isr(struct AdapterControlBlock *acb);
192 static void arcmsr_hbe_postqueue_isr(struct AdapterControlBlock *acb);
193 static void arcmsr_teardown_intr(device_t dev, struct AdapterControlBlock *acb);
194 #ifdef ARCMSR_DEBUG1
195 static void arcmsr_dump_data(struct AdapterControlBlock *acb);
196 #endif
197 /*
198 **************************************************************************
199 **************************************************************************
200 */
201 static void UDELAY(u_int32_t us) { DELAY(us); }
202 /*
203 **************************************************************************
204 **************************************************************************
205 */
206 static bus_dmamap_callback_t arcmsr_map_free_srb;
207 static bus_dmamap_callback_t arcmsr_execute_srb;
208 /*
209 **************************************************************************
210 **************************************************************************
211 */
212 static d_open_t	arcmsr_open;
213 static d_close_t arcmsr_close;
214 static d_ioctl_t arcmsr_ioctl;
215 
216 static device_method_t arcmsr_methods[]={
217 	DEVMETHOD(device_probe,		arcmsr_probe),
218 	DEVMETHOD(device_attach,	arcmsr_attach),
219 	DEVMETHOD(device_detach,	arcmsr_detach),
220 	DEVMETHOD(device_shutdown,	arcmsr_shutdown),
221 	DEVMETHOD(device_suspend,	arcmsr_suspend),
222 	DEVMETHOD(device_resume,	arcmsr_resume),
223 
224 #if __FreeBSD_version >= 803000
225 	DEVMETHOD_END
226 #else
227 	{ 0, 0 }
228 #endif
229 };
230 
231 static driver_t arcmsr_driver={
232 	"arcmsr", arcmsr_methods, sizeof(struct AdapterControlBlock)
233 };
234 
235 static devclass_t arcmsr_devclass;
236 DRIVER_MODULE(arcmsr, pci, arcmsr_driver, arcmsr_devclass, 0, 0);
237 MODULE_DEPEND(arcmsr, pci, 1, 1, 1);
238 MODULE_DEPEND(arcmsr, cam, 1, 1, 1);
239 #ifndef BUS_DMA_COHERENT
240 	#define	BUS_DMA_COHERENT	0x04	/* hint: map memory in a coherent way */
241 #endif
242 #if __FreeBSD_version >= 501000
243 static struct cdevsw arcmsr_cdevsw={
244 	#if __FreeBSD_version >= 503000
245 		.d_version = D_VERSION,
246 	#endif
247 	#if (__FreeBSD_version>=503000 && __FreeBSD_version<600034)
248 		.d_flags   = D_NEEDGIANT,
249 	#endif
250 		.d_open    = arcmsr_open, 	/* open     */
251 		.d_close   = arcmsr_close, 	/* close    */
252 		.d_ioctl   = arcmsr_ioctl, 	/* ioctl    */
253 		.d_name    = "arcmsr", 		/* name     */
254 	};
255 #else
256 	#define ARCMSR_CDEV_MAJOR	180
257 
258 static struct cdevsw arcmsr_cdevsw = {
259 		arcmsr_open,			/* open     */
260 		arcmsr_close,			/* close    */
261 		noread,				/* read     */
262 		nowrite,			/* write    */
263 		arcmsr_ioctl,			/* ioctl    */
264 		nopoll,				/* poll     */
265 		nommap,				/* mmap     */
266 		nostrategy,			/* strategy */
267 		"arcmsr",			/* name     */
268 		ARCMSR_CDEV_MAJOR,		/* major    */
269 		nodump,				/* dump     */
270 		nopsize,			/* psize    */
271 		0				/* flags    */
272 	};
273 #endif
274 /*
275 **************************************************************************
276 **************************************************************************
277 */
278 #if	__FreeBSD_version < 500005
279 	static int arcmsr_open(dev_t dev, int flags, int fmt, struct proc *proc)
280 #else
281 	#if	__FreeBSD_version < 503000
282 	static int arcmsr_open(dev_t dev, int flags, int fmt, struct thread *proc)
283 	#else
284 	static int arcmsr_open(struct cdev *dev, int flags, int fmt, struct thread *proc)
285 	#endif
286 #endif
287 {
288 	#if	__FreeBSD_version < 503000
289 		struct AdapterControlBlock *acb = dev->si_drv1;
290 	#else
291 		int	unit = dev2unit(dev);
292 		struct AdapterControlBlock *acb = devclass_get_softc(arcmsr_devclass, unit);
293 	#endif
294 	if(acb == NULL) {
295 		return ENXIO;
296 	}
297 	return (0);
298 }
299 /*
300 **************************************************************************
301 **************************************************************************
302 */
303 #if	__FreeBSD_version < 500005
304 	static int arcmsr_close(dev_t dev, int flags, int fmt, struct proc *proc)
305 #else
306 	#if	__FreeBSD_version < 503000
307 	static int arcmsr_close(dev_t dev, int flags, int fmt, struct thread *proc)
308 	#else
309 	static int arcmsr_close(struct cdev *dev, int flags, int fmt, struct thread *proc)
310 	#endif
311 #endif
312 {
313 	#if	__FreeBSD_version < 503000
314 		struct AdapterControlBlock *acb = dev->si_drv1;
315 	#else
316 		int	unit = dev2unit(dev);
317 		struct AdapterControlBlock *acb = devclass_get_softc(arcmsr_devclass, unit);
318 	#endif
319 	if(acb == NULL) {
320 		return ENXIO;
321 	}
322 	return 0;
323 }
324 /*
325 **************************************************************************
326 **************************************************************************
327 */
328 #if	__FreeBSD_version < 500005
329 	static int arcmsr_ioctl(dev_t dev, u_long ioctl_cmd, caddr_t arg, int flags, struct proc *proc)
330 #else
331 	#if	__FreeBSD_version < 503000
332 	static int arcmsr_ioctl(dev_t dev, u_long ioctl_cmd, caddr_t arg, int flags, struct thread *proc)
333 	#else
334 	static int arcmsr_ioctl(struct cdev *dev, u_long ioctl_cmd, caddr_t arg, int flags, struct thread *proc)
335 	#endif
336 #endif
337 {
338 	#if	__FreeBSD_version < 503000
339 		struct AdapterControlBlock *acb = dev->si_drv1;
340 	#else
341 		int	unit = dev2unit(dev);
342 		struct AdapterControlBlock *acb = devclass_get_softc(arcmsr_devclass, unit);
343 	#endif
344 
345 	if(acb == NULL) {
346 		return ENXIO;
347 	}
348 	return (arcmsr_iop_ioctlcmd(acb, ioctl_cmd, arg));
349 }
350 /*
351 **********************************************************************
352 **********************************************************************
353 */
354 static u_int32_t arcmsr_disable_allintr( struct AdapterControlBlock *acb)
355 {
356 	u_int32_t intmask_org = 0;
357 
358 	switch (acb->adapter_type) {
359 	case ACB_ADAPTER_TYPE_A: {
360 			/* disable all outbound interrupt */
361 			intmask_org = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intmask); /* disable outbound message0 int */
362 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intmask, intmask_org|ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE);
363 		}
364 		break;
365 	case ACB_ADAPTER_TYPE_B: {
366 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
367 			/* disable all outbound interrupt */
368 			intmask_org = READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell_mask)
369 						& (~ARCMSR_IOP2DRV_MESSAGE_CMD_DONE); /* disable outbound message0 int */
370 			WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell_mask, 0); /* disable all interrupt */
371 		}
372 		break;
373 	case ACB_ADAPTER_TYPE_C: {
374 			/* disable all outbound interrupt */
375 			intmask_org = CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_mask)	; /* disable outbound message0 int */
376 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, host_int_mask, intmask_org|ARCMSR_HBCMU_ALL_INTMASKENABLE);
377 		}
378 		break;
379 	case ACB_ADAPTER_TYPE_D: {
380 			/* disable all outbound interrupt */
381 			intmask_org = CHIP_REG_READ32(HBD_MessageUnit, 0, pcief0_int_enable)	; /* disable outbound message0 int */
382 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, pcief0_int_enable, ARCMSR_HBDMU_ALL_INT_DISABLE);
383 		}
384 		break;
385 	case ACB_ADAPTER_TYPE_E: {
386 			/* disable all outbound interrupt */
387 			intmask_org = CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_mask)	; /* disable outbound message0 int */
388 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_mask, intmask_org | ARCMSR_HBEMU_ALL_INTMASKENABLE);
389 		}
390 		break;
391 	}
392 	return (intmask_org);
393 }
394 /*
395 **********************************************************************
396 **********************************************************************
397 */
398 static void arcmsr_enable_allintr( struct AdapterControlBlock *acb, u_int32_t intmask_org)
399 {
400 	u_int32_t mask;
401 
402 	switch (acb->adapter_type) {
403 	case ACB_ADAPTER_TYPE_A: {
404 			/* enable outbound Post Queue, outbound doorbell Interrupt */
405 			mask = ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE|ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE|ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE);
406 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intmask, intmask_org & mask);
407 			acb->outbound_int_enable = ~(intmask_org & mask) & 0x000000ff;
408 		}
409 		break;
410 	case ACB_ADAPTER_TYPE_B: {
411 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
412 			/* enable ARCMSR_IOP2DRV_MESSAGE_CMD_DONE */
413 			mask = (ARCMSR_IOP2DRV_DATA_WRITE_OK|ARCMSR_IOP2DRV_DATA_READ_OK|ARCMSR_IOP2DRV_CDB_DONE|ARCMSR_IOP2DRV_MESSAGE_CMD_DONE);
414 			WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell_mask, intmask_org | mask); /*1=interrupt enable, 0=interrupt disable*/
415 			acb->outbound_int_enable = (intmask_org | mask) & 0x0000000f;
416 		}
417 		break;
418 	case ACB_ADAPTER_TYPE_C: {
419 			/* enable outbound Post Queue, outbound doorbell Interrupt */
420 			mask = ~(ARCMSR_HBCMU_UTILITY_A_ISR_MASK | ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR_MASK | ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR_MASK);
421 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, host_int_mask, intmask_org & mask);
422 			acb->outbound_int_enable = ~(intmask_org & mask) & 0x0000000f;
423 		}
424 		break;
425 	case ACB_ADAPTER_TYPE_D: {
426 			/* enable outbound Post Queue, outbound doorbell Interrupt */
427 			mask = ARCMSR_HBDMU_ALL_INT_ENABLE;
428 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, pcief0_int_enable, intmask_org | mask);
429 			CHIP_REG_READ32(HBD_MessageUnit, 0, pcief0_int_enable);
430 			acb->outbound_int_enable = mask;
431 		}
432 		break;
433 	case ACB_ADAPTER_TYPE_E: {
434 			/* enable outbound Post Queue, outbound doorbell Interrupt */
435 			mask = ~(ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR | ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR);
436 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_mask, intmask_org & mask);
437 			acb->outbound_int_enable = ~(intmask_org & mask) & 0x0000000f;
438 		}
439 		break;
440 	}
441 }
442 /*
443 **********************************************************************
444 **********************************************************************
445 */
446 static u_int8_t arcmsr_hba_wait_msgint_ready(struct AdapterControlBlock *acb)
447 {
448 	u_int32_t Index;
449 	u_int8_t Retries = 0x00;
450 
451 	do {
452 		for(Index=0; Index < 100; Index++) {
453 			if(CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intstatus) & ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
454 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, ARCMSR_MU_OUTBOUND_MESSAGE0_INT);/*clear interrupt*/
455 				return TRUE;
456 			}
457 			UDELAY(10000);
458 		}/*max 1 seconds*/
459 	}while(Retries++ < 20);/*max 20 sec*/
460 	return (FALSE);
461 }
462 /*
463 **********************************************************************
464 **********************************************************************
465 */
466 static u_int8_t arcmsr_hbb_wait_msgint_ready(struct AdapterControlBlock *acb)
467 {
468 	u_int32_t Index;
469 	u_int8_t Retries = 0x00;
470 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
471 
472 	do {
473 		for(Index=0; Index < 100; Index++) {
474 			if(READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell) & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
475 				WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_MESSAGE_INT_CLEAR_PATTERN);/*clear interrupt*/
476 				WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_END_OF_INTERRUPT);
477 				return TRUE;
478 			}
479 			UDELAY(10000);
480 		}/*max 1 seconds*/
481 	}while(Retries++ < 20);/*max 20 sec*/
482 	return (FALSE);
483 }
484 /*
485 **********************************************************************
486 **********************************************************************
487 */
488 static u_int8_t arcmsr_hbc_wait_msgint_ready(struct AdapterControlBlock *acb)
489 {
490 	u_int32_t Index;
491 	u_int8_t Retries = 0x00;
492 
493 	do {
494 		for(Index=0; Index < 100; Index++) {
495 			if(CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
496 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, outbound_doorbell_clear, ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR);/*clear interrupt*/
497 				return TRUE;
498 			}
499 			UDELAY(10000);
500 		}/*max 1 seconds*/
501 	}while(Retries++ < 20);/*max 20 sec*/
502 	return (FALSE);
503 }
504 /*
505 **********************************************************************
506 **********************************************************************
507 */
508 static u_int8_t arcmsr_hbd_wait_msgint_ready(struct AdapterControlBlock *acb)
509 {
510 	u_int32_t Index;
511 	u_int8_t Retries = 0x00;
512 
513 	do {
514 		for(Index=0; Index < 100; Index++) {
515 			if(CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE) {
516 				CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE_CLEAR);/*clear interrupt*/
517 				return TRUE;
518 			}
519 			UDELAY(10000);
520 		}/*max 1 seconds*/
521 	}while(Retries++ < 20);/*max 20 sec*/
522 	return (FALSE);
523 }
524 /*
525 **********************************************************************
526 **********************************************************************
527 */
528 static u_int8_t arcmsr_hbe_wait_msgint_ready(struct AdapterControlBlock *acb)
529 {
530 	u_int32_t Index, read_doorbell;
531 	u_int8_t Retries = 0x00;
532 
533 	do {
534 		for(Index=0; Index < 100; Index++) {
535 			read_doorbell = CHIP_REG_READ32(HBE_MessageUnit, 0, iobound_doorbell);
536 			if((read_doorbell ^ acb->in_doorbell) & ARCMSR_HBEMU_IOP2DRV_MESSAGE_CMD_DONE) {
537 				CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_status, 0);/*clear interrupt*/
538 				acb->in_doorbell = read_doorbell;
539 				return TRUE;
540 			}
541 			UDELAY(10000);
542 		}/*max 1 seconds*/
543 	}while(Retries++ < 20);/*max 20 sec*/
544 	return (FALSE);
545 }
546 /*
547 ************************************************************************
548 ************************************************************************
549 */
550 static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb)
551 {
552 	int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
553 
554 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_FLUSH_CACHE);
555 	do {
556 		if(arcmsr_hba_wait_msgint_ready(acb)) {
557 			break;
558 		} else {
559 			retry_count--;
560 		}
561 	}while(retry_count != 0);
562 }
563 /*
564 ************************************************************************
565 ************************************************************************
566 */
567 static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb)
568 {
569 	int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
570 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
571 
572 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_FLUSH_CACHE);
573 	do {
574 		if(arcmsr_hbb_wait_msgint_ready(acb)) {
575 			break;
576 		} else {
577 			retry_count--;
578 		}
579 	}while(retry_count != 0);
580 }
581 /*
582 ************************************************************************
583 ************************************************************************
584 */
585 static void arcmsr_flush_hbc_cache(struct AdapterControlBlock *acb)
586 {
587 	int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
588 
589 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_FLUSH_CACHE);
590 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
591 	do {
592 		if(arcmsr_hbc_wait_msgint_ready(acb)) {
593 			break;
594 		} else {
595 			retry_count--;
596 		}
597 	}while(retry_count != 0);
598 }
599 /*
600 ************************************************************************
601 ************************************************************************
602 */
603 static void arcmsr_flush_hbd_cache(struct AdapterControlBlock *acb)
604 {
605 	int retry_count = 30; /* enlarge wait flush adapter cache time: 10 minute */
606 
607 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_FLUSH_CACHE);
608 	do {
609 		if(arcmsr_hbd_wait_msgint_ready(acb)) {
610 			break;
611 		} else {
612 			retry_count--;
613 		}
614 	}while(retry_count != 0);
615 }
616 /*
617 ************************************************************************
618 ************************************************************************
619 */
620 static void arcmsr_flush_hbe_cache(struct AdapterControlBlock *acb)
621 {
622 	int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
623 
624 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_FLUSH_CACHE);
625 	acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
626 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
627 	do {
628 		if(arcmsr_hbe_wait_msgint_ready(acb)) {
629 			break;
630 		} else {
631 			retry_count--;
632 		}
633 	}while(retry_count != 0);
634 }
635 /*
636 ************************************************************************
637 ************************************************************************
638 */
639 static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb)
640 {
641 	switch (acb->adapter_type) {
642 	case ACB_ADAPTER_TYPE_A: {
643 			arcmsr_flush_hba_cache(acb);
644 		}
645 		break;
646 	case ACB_ADAPTER_TYPE_B: {
647 			arcmsr_flush_hbb_cache(acb);
648 		}
649 		break;
650 	case ACB_ADAPTER_TYPE_C: {
651 			arcmsr_flush_hbc_cache(acb);
652 		}
653 		break;
654 	case ACB_ADAPTER_TYPE_D: {
655 			arcmsr_flush_hbd_cache(acb);
656 		}
657 		break;
658 	case ACB_ADAPTER_TYPE_E: {
659 			arcmsr_flush_hbe_cache(acb);
660 		}
661 		break;
662 	}
663 }
664 /*
665 *******************************************************************************
666 *******************************************************************************
667 */
668 static int arcmsr_suspend(device_t dev)
669 {
670 	struct AdapterControlBlock	*acb = device_get_softc(dev);
671 
672 	/* flush controller */
673 	arcmsr_iop_parking(acb);
674 	/* disable all outbound interrupt */
675 	arcmsr_disable_allintr(acb);
676 	return(0);
677 }
678 /*
679 *******************************************************************************
680 *******************************************************************************
681 */
682 static int arcmsr_resume(device_t dev)
683 {
684 	struct AdapterControlBlock	*acb = device_get_softc(dev);
685 
686 	arcmsr_iop_init(acb);
687 	return(0);
688 }
689 /*
690 *********************************************************************************
691 *********************************************************************************
692 */
693 static void arcmsr_async(void *cb_arg, u_int32_t code, struct cam_path *path, void *arg)
694 {
695 	struct AdapterControlBlock *acb;
696 	u_int8_t target_id, target_lun;
697 	struct cam_sim *sim;
698 
699 	sim = (struct cam_sim *) cb_arg;
700 	acb =(struct AdapterControlBlock *) cam_sim_softc(sim);
701 	switch (code) {
702 	case AC_LOST_DEVICE:
703 		target_id = xpt_path_target_id(path);
704 		target_lun = xpt_path_lun_id(path);
705 		if((target_id > ARCMSR_MAX_TARGETID) || (target_lun > ARCMSR_MAX_TARGETLUN)) {
706 			break;
707 		}
708 	//	printf("%s:scsi id=%d lun=%d device lost \n", device_get_name(acb->pci_dev), target_id, target_lun);
709 		break;
710 	default:
711 		break;
712 	}
713 }
714 /*
715 **********************************************************************
716 **********************************************************************
717 */
718 static void arcmsr_report_sense_info(struct CommandControlBlock *srb)
719 {
720 	union ccb *pccb = srb->pccb;
721 
722 	pccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
723 	pccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
724 	if(pccb->csio.sense_len) {
725 		memset(&pccb->csio.sense_data, 0, sizeof(pccb->csio.sense_data));
726 		memcpy(&pccb->csio.sense_data, srb->arcmsr_cdb.SenseData,
727 		get_min(sizeof(struct SENSE_DATA), sizeof(pccb->csio.sense_data)));
728 		((u_int8_t *)&pccb->csio.sense_data)[0] = (0x1 << 7 | 0x70); /* Valid,ErrorCode */
729 		pccb->ccb_h.status |= CAM_AUTOSNS_VALID;
730 	}
731 }
732 /*
733 *********************************************************************
734 *********************************************************************
735 */
736 static void arcmsr_abort_hba_allcmd(struct AdapterControlBlock *acb)
737 {
738 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_ABORT_CMD);
739 	if(!arcmsr_hba_wait_msgint_ready(acb)) {
740 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
741 	}
742 }
743 /*
744 *********************************************************************
745 *********************************************************************
746 */
747 static void arcmsr_abort_hbb_allcmd(struct AdapterControlBlock *acb)
748 {
749 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
750 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_ABORT_CMD);
751 	if(!arcmsr_hbb_wait_msgint_ready(acb)) {
752 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
753 	}
754 }
755 /*
756 *********************************************************************
757 *********************************************************************
758 */
759 static void arcmsr_abort_hbc_allcmd(struct AdapterControlBlock *acb)
760 {
761 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_ABORT_CMD);
762 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
763 	if(!arcmsr_hbc_wait_msgint_ready(acb)) {
764 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
765 	}
766 }
767 /*
768 *********************************************************************
769 *********************************************************************
770 */
771 static void arcmsr_abort_hbd_allcmd(struct AdapterControlBlock *acb)
772 {
773 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_ABORT_CMD);
774 	if(!arcmsr_hbd_wait_msgint_ready(acb)) {
775 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
776 	}
777 }
778 /*
779 *********************************************************************
780 *********************************************************************
781 */
782 static void arcmsr_abort_hbe_allcmd(struct AdapterControlBlock *acb)
783 {
784 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_ABORT_CMD);
785 	acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
786 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
787 	if(!arcmsr_hbe_wait_msgint_ready(acb)) {
788 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
789 	}
790 }
791 /*
792 *********************************************************************
793 *********************************************************************
794 */
795 static void arcmsr_abort_allcmd(struct AdapterControlBlock *acb)
796 {
797 	switch (acb->adapter_type) {
798 	case ACB_ADAPTER_TYPE_A: {
799 			arcmsr_abort_hba_allcmd(acb);
800 		}
801 		break;
802 	case ACB_ADAPTER_TYPE_B: {
803 			arcmsr_abort_hbb_allcmd(acb);
804 		}
805 		break;
806 	case ACB_ADAPTER_TYPE_C: {
807 			arcmsr_abort_hbc_allcmd(acb);
808 		}
809 		break;
810 	case ACB_ADAPTER_TYPE_D: {
811 			arcmsr_abort_hbd_allcmd(acb);
812 		}
813 		break;
814 	case ACB_ADAPTER_TYPE_E: {
815 			arcmsr_abort_hbe_allcmd(acb);
816 		}
817 		break;
818 	}
819 }
820 /*
821 **********************************************************************
822 **********************************************************************
823 */
824 static void arcmsr_srb_complete(struct CommandControlBlock *srb, int stand_flag)
825 {
826 	struct AdapterControlBlock *acb = srb->acb;
827 	union ccb *pccb = srb->pccb;
828 
829 	if(srb->srb_flags & SRB_FLAG_TIMER_START)
830 		callout_stop(&srb->ccb_callout);
831 	if((pccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
832 		bus_dmasync_op_t op;
833 
834 		if((pccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
835 			op = BUS_DMASYNC_POSTREAD;
836 		} else {
837 			op = BUS_DMASYNC_POSTWRITE;
838 		}
839 		bus_dmamap_sync(acb->dm_segs_dmat, srb->dm_segs_dmamap, op);
840 		bus_dmamap_unload(acb->dm_segs_dmat, srb->dm_segs_dmamap);
841 	}
842 	if(stand_flag == 1) {
843 		atomic_subtract_int(&acb->srboutstandingcount, 1);
844 		if((acb->acb_flags & ACB_F_CAM_DEV_QFRZN) && (
845 		acb->srboutstandingcount < (acb->maxOutstanding -10))) {
846 			acb->acb_flags &= ~ACB_F_CAM_DEV_QFRZN;
847 			pccb->ccb_h.status |= CAM_RELEASE_SIMQ;
848 		}
849 	}
850 	if(srb->srb_state != ARCMSR_SRB_TIMEOUT)
851 		arcmsr_free_srb(srb);
852 	acb->pktReturnCount++;
853 	xpt_done(pccb);
854 }
855 /*
856 **************************************************************************
857 **************************************************************************
858 */
859 static void arcmsr_report_srb_state(struct AdapterControlBlock *acb, struct CommandControlBlock *srb, u_int16_t error)
860 {
861 	int target, lun;
862 
863 	target = srb->pccb->ccb_h.target_id;
864 	lun = srb->pccb->ccb_h.target_lun;
865 	if(error == FALSE) {
866 		if(acb->devstate[target][lun] == ARECA_RAID_GONE) {
867 			acb->devstate[target][lun] = ARECA_RAID_GOOD;
868 		}
869 		srb->pccb->ccb_h.status |= CAM_REQ_CMP;
870 		arcmsr_srb_complete(srb, 1);
871 	} else {
872 		switch(srb->arcmsr_cdb.DeviceStatus) {
873 		case ARCMSR_DEV_SELECT_TIMEOUT: {
874 				if(acb->devstate[target][lun] == ARECA_RAID_GOOD) {
875 					printf( "arcmsr%d: Target=%x, Lun=%x, selection timeout, raid volume was lost\n", acb->pci_unit, target, lun);
876 				}
877 				acb->devstate[target][lun] = ARECA_RAID_GONE;
878 				srb->pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
879 				arcmsr_srb_complete(srb, 1);
880 			}
881 			break;
882 		case ARCMSR_DEV_ABORTED:
883 		case ARCMSR_DEV_INIT_FAIL: {
884 				acb->devstate[target][lun] = ARECA_RAID_GONE;
885 				srb->pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
886 				arcmsr_srb_complete(srb, 1);
887 			}
888 			break;
889 		case SCSISTAT_CHECK_CONDITION: {
890 				acb->devstate[target][lun] = ARECA_RAID_GOOD;
891 				arcmsr_report_sense_info(srb);
892 				arcmsr_srb_complete(srb, 1);
893 			}
894 			break;
895 		default:
896 			printf("arcmsr%d: scsi id=%d lun=%d isr got command error done,but got unknown DeviceStatus=0x%x \n"
897 					, acb->pci_unit, target, lun ,srb->arcmsr_cdb.DeviceStatus);
898 			acb->devstate[target][lun] = ARECA_RAID_GONE;
899 			srb->pccb->ccb_h.status |= CAM_UNCOR_PARITY;
900 			/*unknown error or crc error just for retry*/
901 			arcmsr_srb_complete(srb, 1);
902 			break;
903 		}
904 	}
905 }
906 /*
907 **************************************************************************
908 **************************************************************************
909 */
910 static void arcmsr_drain_donequeue(struct AdapterControlBlock *acb, u_int32_t flag_srb, u_int16_t error)
911 {
912 	struct CommandControlBlock *srb;
913 
914 	/* check if command done with no error*/
915 	switch (acb->adapter_type) {
916 	case ACB_ADAPTER_TYPE_A:
917 	case ACB_ADAPTER_TYPE_B:
918 		srb = (struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb << 5));/*frame must be 32 bytes aligned*/
919 		break;
920 	case ACB_ADAPTER_TYPE_C:
921 	case ACB_ADAPTER_TYPE_D:
922 		srb = (struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb & 0xFFFFFFE0)); /*frame must be 32 bytes aligned*/
923 		break;
924 	case ACB_ADAPTER_TYPE_E:
925 		srb = acb->psrb_pool[flag_srb];
926 		break;
927 	default:
928 		srb = (struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb << 5));/*frame must be 32 bytes aligned*/
929 		break;
930 	}
931 	if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
932 		if(srb->srb_state == ARCMSR_SRB_TIMEOUT) {
933 			arcmsr_free_srb(srb);
934 			printf("arcmsr%d: srb='%p' return srb has been timeouted\n", acb->pci_unit, srb);
935 			return;
936 		}
937 		printf("arcmsr%d: return srb has been completed\n"
938 			"srb='%p' srb_state=0x%x outstanding srb count=%d \n",
939 			acb->pci_unit, srb, srb->srb_state, acb->srboutstandingcount);
940 		return;
941 	}
942 	arcmsr_report_srb_state(acb, srb, error);
943 }
944 /*
945 **************************************************************************
946 **************************************************************************
947 */
948 static void	arcmsr_srb_timeout(void *arg)
949 {
950 	struct CommandControlBlock *srb = (struct CommandControlBlock *)arg;
951 	struct AdapterControlBlock *acb;
952 	int target, lun;
953 	u_int8_t cmd;
954 
955 	target = srb->pccb->ccb_h.target_id;
956 	lun = srb->pccb->ccb_h.target_lun;
957 	acb = srb->acb;
958 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
959 	if(srb->srb_state == ARCMSR_SRB_START)
960 	{
961 		cmd = scsiio_cdb_ptr(&srb->pccb->csio)[0];
962 		srb->srb_state = ARCMSR_SRB_TIMEOUT;
963 		srb->pccb->ccb_h.status |= CAM_CMD_TIMEOUT;
964 		arcmsr_srb_complete(srb, 1);
965 		printf("arcmsr%d: scsi id %d lun %d cmd=0x%x srb='%p' ccb command time out!\n",
966 				 acb->pci_unit, target, lun, cmd, srb);
967 	}
968 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
969 #ifdef ARCMSR_DEBUG1
970 	arcmsr_dump_data(acb);
971 #endif
972 }
973 
974 /*
975 **********************************************************************
976 **********************************************************************
977 */
978 static void arcmsr_done4abort_postqueue(struct AdapterControlBlock *acb)
979 {
980 	int i=0;
981 	u_int32_t flag_srb;
982 	u_int16_t error;
983 
984 	switch (acb->adapter_type) {
985 	case ACB_ADAPTER_TYPE_A: {
986 			u_int32_t outbound_intstatus;
987 
988 			/*clear and abort all outbound posted Q*/
989 			outbound_intstatus = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intstatus) & acb->outbound_int_enable;
990 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, outbound_intstatus);/*clear interrupt*/
991 			while(((flag_srb=CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_queueport)) != 0xFFFFFFFF) && (i++ < ARCMSR_MAX_OUTSTANDING_CMD)) {
992 				error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0)?TRUE:FALSE;
993 				arcmsr_drain_donequeue(acb, flag_srb, error);
994 			}
995 		}
996 		break;
997 	case ACB_ADAPTER_TYPE_B: {
998 			struct HBB_MessageUnit *phbbmu=(struct HBB_MessageUnit *)acb->pmu;
999 
1000 			/*clear all outbound posted Q*/
1001 			WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_DOORBELL_INT_CLEAR_PATTERN); /* clear doorbell interrupt */
1002 			for(i=0; i < ARCMSR_MAX_HBB_POSTQUEUE; i++) {
1003 				if((flag_srb = phbbmu->done_qbuffer[i]) != 0) {
1004 					phbbmu->done_qbuffer[i] = 0;
1005 					error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0)?TRUE:FALSE;
1006 					arcmsr_drain_donequeue(acb, flag_srb, error);
1007 				}
1008 				phbbmu->post_qbuffer[i] = 0;
1009 			}/*drain reply FIFO*/
1010 			phbbmu->doneq_index = 0;
1011 			phbbmu->postq_index = 0;
1012 		}
1013 		break;
1014 	case ACB_ADAPTER_TYPE_C: {
1015 
1016 			while((CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) && (i++ < ARCMSR_MAX_OUTSTANDING_CMD)) {
1017 				flag_srb = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_queueport_low);
1018 				error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1) ? TRUE : FALSE;
1019 				arcmsr_drain_donequeue(acb, flag_srb, error);
1020 			}
1021 		}
1022 		break;
1023 	case ACB_ADAPTER_TYPE_D: {
1024 			arcmsr_hbd_postqueue_isr(acb);
1025 		}
1026 		break;
1027 	case ACB_ADAPTER_TYPE_E: {
1028 			arcmsr_hbe_postqueue_isr(acb);
1029 		}
1030 		break;
1031 	}
1032 }
1033 /*
1034 ****************************************************************************
1035 ****************************************************************************
1036 */
1037 static void arcmsr_iop_reset(struct AdapterControlBlock *acb)
1038 {
1039 	struct CommandControlBlock *srb;
1040 	u_int32_t intmask_org;
1041 	u_int32_t i=0;
1042 
1043 	if(acb->srboutstandingcount>0) {
1044 		/* disable all outbound interrupt */
1045 		intmask_org = arcmsr_disable_allintr(acb);
1046 		/*clear and abort all outbound posted Q*/
1047 		arcmsr_done4abort_postqueue(acb);
1048 		/* talk to iop 331 outstanding command aborted*/
1049 		arcmsr_abort_allcmd(acb);
1050 		for(i=0; i < ARCMSR_MAX_FREESRB_NUM; i++) {
1051 			srb = acb->psrb_pool[i];
1052 			if(srb->srb_state == ARCMSR_SRB_START) {
1053 				srb->srb_state = ARCMSR_SRB_ABORTED;
1054 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
1055 				arcmsr_srb_complete(srb, 1);
1056 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p' aborted\n"
1057 						, acb->pci_unit, srb->pccb->ccb_h.target_id
1058 						, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
1059 			}
1060 		}
1061 		/* enable all outbound interrupt */
1062 		arcmsr_enable_allintr(acb, intmask_org);
1063 	}
1064 	acb->srboutstandingcount = 0;
1065 	acb->workingsrb_doneindex = 0;
1066 	acb->workingsrb_startindex = 0;
1067 	acb->pktRequestCount = 0;
1068 	acb->pktReturnCount = 0;
1069 }
1070 /*
1071 **********************************************************************
1072 **********************************************************************
1073 */
1074 static void arcmsr_build_srb(struct CommandControlBlock *srb,
1075 		bus_dma_segment_t *dm_segs, u_int32_t nseg)
1076 {
1077 	struct ARCMSR_CDB *arcmsr_cdb = &srb->arcmsr_cdb;
1078 	u_int8_t *psge = (u_int8_t *)&arcmsr_cdb->u;
1079 	u_int32_t address_lo, address_hi;
1080 	union ccb *pccb = srb->pccb;
1081 	struct ccb_scsiio *pcsio = &pccb->csio;
1082 	u_int32_t arccdbsize = 0x30;
1083 
1084 	memset(arcmsr_cdb, 0, sizeof(struct ARCMSR_CDB));
1085 	arcmsr_cdb->Bus = 0;
1086 	arcmsr_cdb->TargetID = pccb->ccb_h.target_id;
1087 	arcmsr_cdb->LUN = pccb->ccb_h.target_lun;
1088 	arcmsr_cdb->Function = 1;
1089 	arcmsr_cdb->CdbLength = (u_int8_t)pcsio->cdb_len;
1090 	bcopy(scsiio_cdb_ptr(pcsio), arcmsr_cdb->Cdb, pcsio->cdb_len);
1091 	if(nseg != 0) {
1092 		struct AdapterControlBlock *acb = srb->acb;
1093 		bus_dmasync_op_t op;
1094 		u_int32_t length, i, cdb_sgcount = 0;
1095 
1096 		if((pccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1097 			op = BUS_DMASYNC_PREREAD;
1098 		} else {
1099 			op = BUS_DMASYNC_PREWRITE;
1100 			arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_WRITE;
1101 			srb->srb_flags |= SRB_FLAG_WRITE;
1102 		}
1103 		bus_dmamap_sync(acb->dm_segs_dmat, srb->dm_segs_dmamap, op);
1104 		for(i=0; i < nseg; i++) {
1105 			/* Get the physical address of the current data pointer */
1106 			length = arcmsr_htole32(dm_segs[i].ds_len);
1107 			address_lo = arcmsr_htole32(dma_addr_lo32(dm_segs[i].ds_addr));
1108 			address_hi = arcmsr_htole32(dma_addr_hi32(dm_segs[i].ds_addr));
1109 			if(address_hi == 0) {
1110 				struct SG32ENTRY *pdma_sg = (struct SG32ENTRY *)psge;
1111 				pdma_sg->address = address_lo;
1112 				pdma_sg->length = length;
1113 				psge += sizeof(struct SG32ENTRY);
1114 				arccdbsize += sizeof(struct SG32ENTRY);
1115 			} else {
1116 				u_int32_t sg64s_size = 0, tmplength = length;
1117 
1118 				while(1) {
1119 					u_int64_t span4G, length0;
1120 					struct SG64ENTRY *pdma_sg = (struct SG64ENTRY *)psge;
1121 
1122 					span4G = (u_int64_t)address_lo + tmplength;
1123 					pdma_sg->addresshigh = address_hi;
1124 					pdma_sg->address = address_lo;
1125 					if(span4G > 0x100000000) {
1126 						/*see if cross 4G boundary*/
1127 						length0 = 0x100000000-address_lo;
1128 						pdma_sg->length = (u_int32_t)length0 | IS_SG64_ADDR;
1129 						address_hi = address_hi+1;
1130 						address_lo = 0;
1131 						tmplength = tmplength - (u_int32_t)length0;
1132 						sg64s_size += sizeof(struct SG64ENTRY);
1133 						psge += sizeof(struct SG64ENTRY);
1134 						cdb_sgcount++;
1135 					} else {
1136 						pdma_sg->length = tmplength | IS_SG64_ADDR;
1137 						sg64s_size += sizeof(struct SG64ENTRY);
1138 						psge += sizeof(struct SG64ENTRY);
1139 						break;
1140 					}
1141 				}
1142 				arccdbsize += sg64s_size;
1143 			}
1144 			cdb_sgcount++;
1145 		}
1146 		arcmsr_cdb->sgcount = (u_int8_t)cdb_sgcount;
1147 		arcmsr_cdb->DataLength = pcsio->dxfer_len;
1148 		if( arccdbsize > 256) {
1149 			arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_SGL_BSIZE;
1150 		}
1151 	} else {
1152 		arcmsr_cdb->DataLength = 0;
1153 	}
1154 	srb->arc_cdb_size = arccdbsize;
1155 	arcmsr_cdb->msgPages = (arccdbsize/256) + ((arccdbsize % 256) ? 1 : 0);
1156 }
1157 /*
1158 **************************************************************************
1159 **************************************************************************
1160 */
1161 static void arcmsr_post_srb(struct AdapterControlBlock *acb, struct CommandControlBlock *srb)
1162 {
1163 	u_int32_t cdb_phyaddr_low = (u_int32_t) srb->cdb_phyaddr_low;
1164 	struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&srb->arcmsr_cdb;
1165 
1166 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, (srb->srb_flags & SRB_FLAG_WRITE) ? BUS_DMASYNC_POSTWRITE:BUS_DMASYNC_POSTREAD);
1167 	atomic_add_int(&acb->srboutstandingcount, 1);
1168 	srb->srb_state = ARCMSR_SRB_START;
1169 
1170 	switch (acb->adapter_type) {
1171 	case ACB_ADAPTER_TYPE_A: {
1172 			if(arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) {
1173 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_queueport, cdb_phyaddr_low|ARCMSR_SRBPOST_FLAG_SGL_BSIZE);
1174 			} else {
1175 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_queueport, cdb_phyaddr_low);
1176 			}
1177 		}
1178 		break;
1179 	case ACB_ADAPTER_TYPE_B: {
1180 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1181 			int ending_index, index;
1182 
1183 			index = phbbmu->postq_index;
1184 			ending_index = ((index+1) % ARCMSR_MAX_HBB_POSTQUEUE);
1185 			phbbmu->post_qbuffer[ending_index] = 0;
1186 			if(arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) {
1187 				phbbmu->post_qbuffer[index] = cdb_phyaddr_low | ARCMSR_SRBPOST_FLAG_SGL_BSIZE;
1188 			} else {
1189 				phbbmu->post_qbuffer[index] = cdb_phyaddr_low;
1190 			}
1191 			index++;
1192 			index %= ARCMSR_MAX_HBB_POSTQUEUE;     /*if last index number set it to 0 */
1193 			phbbmu->postq_index = index;
1194 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_CDB_POSTED);
1195 		}
1196 		break;
1197 	case ACB_ADAPTER_TYPE_C: {
1198 			u_int32_t ccb_post_stamp, arc_cdb_size, cdb_phyaddr_hi32;
1199 
1200 			arc_cdb_size = (srb->arc_cdb_size > 0x300) ? 0x300 : srb->arc_cdb_size;
1201 			ccb_post_stamp = (cdb_phyaddr_low | ((arc_cdb_size-1) >> 6) | 1);
1202 			cdb_phyaddr_hi32 = acb->srb_phyaddr.B.phyadd_high;
1203 			if(cdb_phyaddr_hi32)
1204 			{
1205 				CHIP_REG_WRITE32(HBC_MessageUnit,0,inbound_queueport_high, cdb_phyaddr_hi32);
1206 				CHIP_REG_WRITE32(HBC_MessageUnit,0,inbound_queueport_low, ccb_post_stamp);
1207 			}
1208 			else
1209 			{
1210 				CHIP_REG_WRITE32(HBC_MessageUnit,0,inbound_queueport_low, ccb_post_stamp);
1211 			}
1212 		}
1213 		break;
1214 	case ACB_ADAPTER_TYPE_D: {
1215 			struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
1216 			u_int16_t index_stripped;
1217 			u_int16_t postq_index;
1218 			struct InBound_SRB *pinbound_srb;
1219 
1220 			ARCMSR_LOCK_ACQUIRE(&acb->postDone_lock);
1221 			postq_index = phbdmu->postq_index;
1222 			pinbound_srb = (struct InBound_SRB *)&phbdmu->post_qbuffer[postq_index & 0xFF];
1223 			pinbound_srb->addressHigh = srb->cdb_phyaddr_high;
1224 			pinbound_srb->addressLow = srb->cdb_phyaddr_low;
1225 			pinbound_srb->length = srb->arc_cdb_size >> 2;
1226 			arcmsr_cdb->Context = srb->cdb_phyaddr_low;
1227 			if (postq_index & 0x4000) {
1228 				index_stripped = postq_index & 0xFF;
1229 				index_stripped += 1;
1230 				index_stripped %= ARCMSR_MAX_HBD_POSTQUEUE;
1231 				phbdmu->postq_index = index_stripped ? (index_stripped | 0x4000) : index_stripped;
1232 			} else {
1233 				index_stripped = postq_index;
1234 				index_stripped += 1;
1235 				index_stripped %= ARCMSR_MAX_HBD_POSTQUEUE;
1236 				phbdmu->postq_index = index_stripped ? index_stripped : (index_stripped | 0x4000);
1237 			}
1238 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inboundlist_write_pointer, postq_index);
1239 			ARCMSR_LOCK_RELEASE(&acb->postDone_lock);
1240 		}
1241 		break;
1242 	case ACB_ADAPTER_TYPE_E: {
1243 			u_int32_t ccb_post_stamp, arc_cdb_size;
1244 
1245 			arc_cdb_size = (srb->arc_cdb_size > 0x300) ? 0x300 : srb->arc_cdb_size;
1246 			ccb_post_stamp = (srb->smid | ((arc_cdb_size-1) >> 6));
1247 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_queueport_high, 0);
1248 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_queueport_low, ccb_post_stamp);
1249         	}
1250 		break;
1251 	}
1252 }
1253 /*
1254 ************************************************************************
1255 ************************************************************************
1256 */
1257 static struct QBUFFER *arcmsr_get_iop_rqbuffer( struct AdapterControlBlock *acb)
1258 {
1259 	struct QBUFFER *qbuffer=NULL;
1260 
1261 	switch (acb->adapter_type) {
1262 	case ACB_ADAPTER_TYPE_A: {
1263 			struct HBA_MessageUnit *phbamu = (struct HBA_MessageUnit *)acb->pmu;
1264 
1265 			qbuffer = (struct QBUFFER *)&phbamu->message_rbuffer;
1266 		}
1267 		break;
1268 	case ACB_ADAPTER_TYPE_B: {
1269 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1270 
1271 			qbuffer = (struct QBUFFER *)&phbbmu->hbb_rwbuffer->message_rbuffer;
1272 		}
1273 		break;
1274 	case ACB_ADAPTER_TYPE_C: {
1275 			struct HBC_MessageUnit *phbcmu = (struct HBC_MessageUnit *)acb->pmu;
1276 
1277 			qbuffer = (struct QBUFFER *)&phbcmu->message_rbuffer;
1278 		}
1279 		break;
1280 	case ACB_ADAPTER_TYPE_D: {
1281 			struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
1282 
1283 			qbuffer = (struct QBUFFER *)&phbdmu->phbdmu->message_rbuffer;
1284 		}
1285 		break;
1286 	case ACB_ADAPTER_TYPE_E: {
1287 			struct HBE_MessageUnit *phbcmu = (struct HBE_MessageUnit *)acb->pmu;
1288 
1289 			qbuffer = (struct QBUFFER *)&phbcmu->message_rbuffer;
1290 		}
1291 		break;
1292 	}
1293 	return(qbuffer);
1294 }
1295 /*
1296 ************************************************************************
1297 ************************************************************************
1298 */
1299 static struct QBUFFER *arcmsr_get_iop_wqbuffer( struct AdapterControlBlock *acb)
1300 {
1301 	struct QBUFFER *qbuffer = NULL;
1302 
1303 	switch (acb->adapter_type) {
1304 	case ACB_ADAPTER_TYPE_A: {
1305 			struct HBA_MessageUnit *phbamu = (struct HBA_MessageUnit *)acb->pmu;
1306 
1307 			qbuffer = (struct QBUFFER *)&phbamu->message_wbuffer;
1308 		}
1309 		break;
1310 	case ACB_ADAPTER_TYPE_B: {
1311 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1312 
1313 			qbuffer = (struct QBUFFER *)&phbbmu->hbb_rwbuffer->message_wbuffer;
1314 		}
1315 		break;
1316 	case ACB_ADAPTER_TYPE_C: {
1317 			struct HBC_MessageUnit *phbcmu = (struct HBC_MessageUnit *)acb->pmu;
1318 
1319 			qbuffer = (struct QBUFFER *)&phbcmu->message_wbuffer;
1320 		}
1321 		break;
1322 	case ACB_ADAPTER_TYPE_D: {
1323 			struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
1324 
1325 			qbuffer = (struct QBUFFER *)&phbdmu->phbdmu->message_wbuffer;
1326 		}
1327 		break;
1328 	case ACB_ADAPTER_TYPE_E: {
1329 			struct HBE_MessageUnit *phbcmu = (struct HBE_MessageUnit *)acb->pmu;
1330 
1331 			qbuffer = (struct QBUFFER *)&phbcmu->message_wbuffer;
1332 		}
1333 		break;
1334 	}
1335 	return(qbuffer);
1336 }
1337 /*
1338 **************************************************************************
1339 **************************************************************************
1340 */
1341 static void arcmsr_iop_message_read(struct AdapterControlBlock *acb)
1342 {
1343 	switch (acb->adapter_type) {
1344 	case ACB_ADAPTER_TYPE_A: {
1345 			/* let IOP know data has been read */
1346 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_READ_OK);
1347 		}
1348 		break;
1349 	case ACB_ADAPTER_TYPE_B: {
1350 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1351 			/* let IOP know data has been read */
1352 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_DATA_READ_OK);
1353 		}
1354 		break;
1355 	case ACB_ADAPTER_TYPE_C: {
1356 			/* let IOP know data has been read */
1357 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK);
1358 		}
1359 		break;
1360 	case ACB_ADAPTER_TYPE_D: {
1361 			/* let IOP know data has been read */
1362 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_doorbell, ARCMSR_HBDMU_DRV2IOP_DATA_OUT_READ);
1363 		}
1364 		break;
1365 	case ACB_ADAPTER_TYPE_E: {
1366 			/* let IOP know data has been read */
1367 			acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_READ_OK;
1368 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
1369 		}
1370 		break;
1371 	}
1372 }
1373 /*
1374 **************************************************************************
1375 **************************************************************************
1376 */
1377 static void arcmsr_iop_message_wrote(struct AdapterControlBlock *acb)
1378 {
1379 	switch (acb->adapter_type) {
1380 	case ACB_ADAPTER_TYPE_A: {
1381 			/*
1382 			** push inbound doorbell tell iop, driver data write ok
1383 			** and wait reply on next hwinterrupt for next Qbuffer post
1384 			*/
1385 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK);
1386 		}
1387 		break;
1388 	case ACB_ADAPTER_TYPE_B: {
1389 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1390 			/*
1391 			** push inbound doorbell tell iop, driver data write ok
1392 			** and wait reply on next hwinterrupt for next Qbuffer post
1393 			*/
1394 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_DATA_WRITE_OK);
1395 		}
1396 		break;
1397 	case ACB_ADAPTER_TYPE_C: {
1398 			/*
1399 			** push inbound doorbell tell iop, driver data write ok
1400 			** and wait reply on next hwinterrupt for next Qbuffer post
1401 			*/
1402 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_DATA_WRITE_OK);
1403 		}
1404 		break;
1405 	case ACB_ADAPTER_TYPE_D: {
1406 			/*
1407 			** push inbound doorbell tell iop, driver data write ok
1408 			** and wait reply on next hwinterrupt for next Qbuffer post
1409 			*/
1410 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_doorbell, ARCMSR_HBDMU_DRV2IOP_DATA_IN_READY);
1411 		}
1412 		break;
1413 	case ACB_ADAPTER_TYPE_E: {
1414 			/*
1415 			** push inbound doorbell tell iop, driver data write ok
1416 			** and wait reply on next hwinterrupt for next Qbuffer post
1417 			*/
1418 			acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_WRITE_OK;
1419 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
1420 		}
1421 		break;
1422 	}
1423 }
1424 /*
1425 ************************************************************************
1426 ************************************************************************
1427 */
1428 static void arcmsr_stop_hba_bgrb(struct AdapterControlBlock *acb)
1429 {
1430 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1431 	CHIP_REG_WRITE32(HBA_MessageUnit,
1432 		0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_STOP_BGRB);
1433 	if(!arcmsr_hba_wait_msgint_ready(acb)) {
1434 		printf("arcmsr%d: wait 'stop adapter background rebulid' timeout \n"
1435 			, acb->pci_unit);
1436 	}
1437 }
1438 /*
1439 ************************************************************************
1440 ************************************************************************
1441 */
1442 static void arcmsr_stop_hbb_bgrb(struct AdapterControlBlock *acb)
1443 {
1444 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1445 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1446 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_STOP_BGRB);
1447 	if(!arcmsr_hbb_wait_msgint_ready(acb)) {
1448 		printf( "arcmsr%d: wait 'stop adapter background rebulid' timeout \n"
1449 			, acb->pci_unit);
1450 	}
1451 }
1452 /*
1453 ************************************************************************
1454 ************************************************************************
1455 */
1456 static void arcmsr_stop_hbc_bgrb(struct AdapterControlBlock *acb)
1457 {
1458 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1459 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_STOP_BGRB);
1460 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell,ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
1461 	if(!arcmsr_hbc_wait_msgint_ready(acb)) {
1462 		printf("arcmsr%d: wait 'stop adapter background rebulid' timeout \n", acb->pci_unit);
1463 	}
1464 }
1465 /*
1466 ************************************************************************
1467 ************************************************************************
1468 */
1469 static void arcmsr_stop_hbd_bgrb(struct AdapterControlBlock *acb)
1470 {
1471 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1472 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_STOP_BGRB);
1473 	if(!arcmsr_hbd_wait_msgint_ready(acb)) {
1474 		printf("arcmsr%d: wait 'stop adapter background rebulid' timeout \n", acb->pci_unit);
1475 	}
1476 }
1477 /*
1478 ************************************************************************
1479 ************************************************************************
1480 */
1481 static void arcmsr_stop_hbe_bgrb(struct AdapterControlBlock *acb)
1482 {
1483 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1484 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_STOP_BGRB);
1485 	acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
1486 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
1487 	if(!arcmsr_hbe_wait_msgint_ready(acb)) {
1488 		printf("arcmsr%d: wait 'stop adapter background rebulid' timeout \n", acb->pci_unit);
1489 	}
1490 }
1491 /*
1492 ************************************************************************
1493 ************************************************************************
1494 */
1495 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb)
1496 {
1497 	switch (acb->adapter_type) {
1498 	case ACB_ADAPTER_TYPE_A: {
1499 			arcmsr_stop_hba_bgrb(acb);
1500 		}
1501 		break;
1502 	case ACB_ADAPTER_TYPE_B: {
1503 			arcmsr_stop_hbb_bgrb(acb);
1504 		}
1505 		break;
1506 	case ACB_ADAPTER_TYPE_C: {
1507 			arcmsr_stop_hbc_bgrb(acb);
1508 		}
1509 		break;
1510 	case ACB_ADAPTER_TYPE_D: {
1511 			arcmsr_stop_hbd_bgrb(acb);
1512 		}
1513 		break;
1514 	case ACB_ADAPTER_TYPE_E: {
1515 			arcmsr_stop_hbe_bgrb(acb);
1516 		}
1517 		break;
1518 	}
1519 }
1520 /*
1521 ************************************************************************
1522 ************************************************************************
1523 */
1524 static void arcmsr_poll(struct cam_sim *psim)
1525 {
1526 	struct AdapterControlBlock *acb;
1527 	int	mutex;
1528 
1529 	acb = (struct AdapterControlBlock *)cam_sim_softc(psim);
1530 	mutex = mtx_owned(&acb->isr_lock);
1531 	if( mutex == 0 )
1532 		ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
1533 	arcmsr_interrupt(acb);
1534 	if( mutex == 0 )
1535 		ARCMSR_LOCK_RELEASE(&acb->isr_lock);
1536 }
1537 /*
1538 **************************************************************************
1539 **************************************************************************
1540 */
1541 static u_int32_t arcmsr_Read_iop_rqbuffer_data_D(struct AdapterControlBlock *acb,
1542 	struct QBUFFER *prbuffer) {
1543 
1544 	u_int8_t *pQbuffer;
1545 	u_int8_t *buf1 = NULL;
1546 	u_int32_t *iop_data, *buf2 = NULL;
1547 	u_int32_t iop_len, data_len;
1548 
1549 	iop_data = (u_int32_t *)prbuffer->data;
1550 	iop_len = (u_int32_t)prbuffer->data_len;
1551 	if ( iop_len > 0 )
1552 	{
1553 		buf1 = malloc(128, M_DEVBUF, M_NOWAIT | M_ZERO);
1554 		buf2 = (u_int32_t *)buf1;
1555 		if( buf1 == NULL)
1556 			return (0);
1557 		data_len = iop_len;
1558 		while(data_len >= 4)
1559 		{
1560 			*buf2++ = *iop_data++;
1561 			data_len -= 4;
1562 		}
1563 		if(data_len)
1564 			*buf2 = *iop_data;
1565 		buf2 = (u_int32_t *)buf1;
1566 	}
1567 	while (iop_len > 0) {
1568 		pQbuffer = &acb->rqbuffer[acb->rqbuf_lastindex];
1569 		*pQbuffer = *buf1;
1570 		acb->rqbuf_lastindex++;
1571 		/* if last, index number set it to 0 */
1572 		acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
1573 		buf1++;
1574 		iop_len--;
1575 	}
1576 	if(buf2)
1577 		free( (u_int8_t *)buf2, M_DEVBUF);
1578 	/* let IOP know data has been read */
1579 	arcmsr_iop_message_read(acb);
1580 	return (1);
1581 }
1582 /*
1583 **************************************************************************
1584 **************************************************************************
1585 */
1586 static u_int32_t arcmsr_Read_iop_rqbuffer_data(struct AdapterControlBlock *acb,
1587 	struct QBUFFER *prbuffer) {
1588 
1589 	u_int8_t *pQbuffer;
1590 	u_int8_t *iop_data;
1591 	u_int32_t iop_len;
1592 
1593 	if(acb->adapter_type >= ACB_ADAPTER_TYPE_B) {
1594 		return(arcmsr_Read_iop_rqbuffer_data_D(acb, prbuffer));
1595 	}
1596 	iop_data = (u_int8_t *)prbuffer->data;
1597 	iop_len = (u_int32_t)prbuffer->data_len;
1598 	while (iop_len > 0) {
1599 		pQbuffer = &acb->rqbuffer[acb->rqbuf_lastindex];
1600 		*pQbuffer = *iop_data;
1601 		acb->rqbuf_lastindex++;
1602 		/* if last, index number set it to 0 */
1603 		acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
1604 		iop_data++;
1605 		iop_len--;
1606 	}
1607 	/* let IOP know data has been read */
1608 	arcmsr_iop_message_read(acb);
1609 	return (1);
1610 }
1611 /*
1612 **************************************************************************
1613 **************************************************************************
1614 */
1615 static void arcmsr_iop2drv_data_wrote_handle(struct AdapterControlBlock *acb)
1616 {
1617 	struct QBUFFER *prbuffer;
1618 	int my_empty_len;
1619 
1620 	/*check this iop data if overflow my rqbuffer*/
1621 	ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
1622 	prbuffer = arcmsr_get_iop_rqbuffer(acb);
1623 	my_empty_len = (acb->rqbuf_lastindex - acb->rqbuf_firstindex - 1) &
1624 		(ARCMSR_MAX_QBUFFER-1);
1625 	if(my_empty_len >= prbuffer->data_len) {
1626 		if(arcmsr_Read_iop_rqbuffer_data(acb, prbuffer) == 0)
1627 			acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
1628 	} else {
1629 		acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
1630 	}
1631 	ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
1632 }
1633 /*
1634 **********************************************************************
1635 **********************************************************************
1636 */
1637 static void arcmsr_Write_data_2iop_wqbuffer_D(struct AdapterControlBlock *acb)
1638 {
1639 	u_int8_t *pQbuffer;
1640 	struct QBUFFER *pwbuffer;
1641 	u_int8_t *buf1 = NULL;
1642 	u_int32_t *iop_data, *buf2 = NULL;
1643 	u_int32_t allxfer_len = 0, data_len;
1644 
1645 	if(acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READ) {
1646 		buf1 = malloc(128, M_DEVBUF, M_NOWAIT | M_ZERO);
1647 		buf2 = (u_int32_t *)buf1;
1648 		if( buf1 == NULL)
1649 			return;
1650 
1651 		acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READ);
1652 		pwbuffer = arcmsr_get_iop_wqbuffer(acb);
1653 		iop_data = (u_int32_t *)pwbuffer->data;
1654 		while((acb->wqbuf_firstindex != acb->wqbuf_lastindex)
1655 			&& (allxfer_len < 124)) {
1656 			pQbuffer = &acb->wqbuffer[acb->wqbuf_firstindex];
1657 			*buf1 = *pQbuffer;
1658 			acb->wqbuf_firstindex++;
1659 			acb->wqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
1660 			buf1++;
1661 			allxfer_len++;
1662 		}
1663 		pwbuffer->data_len = allxfer_len;
1664 		data_len = allxfer_len;
1665 		buf1 = (u_int8_t *)buf2;
1666 		while(data_len >= 4)
1667 		{
1668 			*iop_data++ = *buf2++;
1669 			data_len -= 4;
1670 		}
1671 		if(data_len)
1672 			*iop_data = *buf2;
1673 		free( buf1, M_DEVBUF);
1674 		arcmsr_iop_message_wrote(acb);
1675 	}
1676 }
1677 /*
1678 **********************************************************************
1679 **********************************************************************
1680 */
1681 static void arcmsr_Write_data_2iop_wqbuffer(struct AdapterControlBlock *acb)
1682 {
1683 	u_int8_t *pQbuffer;
1684 	struct QBUFFER *pwbuffer;
1685 	u_int8_t *iop_data;
1686 	int32_t allxfer_len=0;
1687 
1688 	if(acb->adapter_type >= ACB_ADAPTER_TYPE_B) {
1689 		arcmsr_Write_data_2iop_wqbuffer_D(acb);
1690 		return;
1691 	}
1692 	if(acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READ) {
1693 		acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READ);
1694 		pwbuffer = arcmsr_get_iop_wqbuffer(acb);
1695 		iop_data = (u_int8_t *)pwbuffer->data;
1696 		while((acb->wqbuf_firstindex != acb->wqbuf_lastindex)
1697 			&& (allxfer_len < 124)) {
1698 			pQbuffer = &acb->wqbuffer[acb->wqbuf_firstindex];
1699 			*iop_data = *pQbuffer;
1700 			acb->wqbuf_firstindex++;
1701 			acb->wqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
1702 			iop_data++;
1703 			allxfer_len++;
1704 		}
1705 		pwbuffer->data_len = allxfer_len;
1706 		arcmsr_iop_message_wrote(acb);
1707 	}
1708 }
1709 /*
1710 **************************************************************************
1711 **************************************************************************
1712 */
1713 static void arcmsr_iop2drv_data_read_handle(struct AdapterControlBlock *acb)
1714 {
1715 	ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
1716 	acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_READ;
1717 	/*
1718 	*****************************************************************
1719 	**   check if there are any mail packages from user space program
1720 	**   in my post bag, now is the time to send them into Areca's firmware
1721 	*****************************************************************
1722 	*/
1723 	if(acb->wqbuf_firstindex != acb->wqbuf_lastindex) {
1724 		arcmsr_Write_data_2iop_wqbuffer(acb);
1725 	}
1726 	if(acb->wqbuf_firstindex == acb->wqbuf_lastindex) {
1727 		acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_CLEARED;
1728 	}
1729 	ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
1730 }
1731 /*
1732 **************************************************************************
1733 **************************************************************************
1734 */
1735 static void arcmsr_rescanLun_cb(struct cam_periph *periph, union ccb *ccb)
1736 {
1737 /*
1738 	if (ccb->ccb_h.status != CAM_REQ_CMP)
1739 		printf("arcmsr_rescanLun_cb: Rescan Target=%x, lun=%x,"
1740 			"failure status=%x\n", ccb->ccb_h.target_id,
1741 			ccb->ccb_h.target_lun, ccb->ccb_h.status);
1742 	else
1743 		printf("arcmsr_rescanLun_cb: Rescan lun successfully!\n");
1744 */
1745 	xpt_free_path(ccb->ccb_h.path);
1746 	xpt_free_ccb(ccb);
1747 }
1748 
1749 static void	arcmsr_rescan_lun(struct AdapterControlBlock *acb, int target, int lun)
1750 {
1751 	struct cam_path     *path;
1752 	union ccb           *ccb;
1753 
1754 	if ((ccb = (union ccb *)xpt_alloc_ccb_nowait()) == NULL)
1755 			return;
1756 	if (xpt_create_path(&path, NULL, cam_sim_path(acb->psim), target, lun) != CAM_REQ_CMP)
1757 	{
1758 		xpt_free_ccb(ccb);
1759 		return;
1760 	}
1761 /*	printf("arcmsr_rescan_lun: Rescan Target=%x, Lun=%x\n", target, lun); */
1762 	bzero(ccb, sizeof(union ccb));
1763 	xpt_setup_ccb(&ccb->ccb_h, path, 5);
1764 	ccb->ccb_h.func_code = XPT_SCAN_LUN;
1765 	ccb->ccb_h.cbfcnp = arcmsr_rescanLun_cb;
1766 	ccb->crcn.flags = CAM_FLAG_NONE;
1767 	xpt_action(ccb);
1768 }
1769 
1770 
1771 static void arcmsr_abort_dr_ccbs(struct AdapterControlBlock *acb, int target, int lun)
1772 {
1773 	struct CommandControlBlock *srb;
1774 	u_int32_t intmask_org;
1775 	int i;
1776 
1777 	/* disable all outbound interrupts */
1778 	intmask_org = arcmsr_disable_allintr(acb);
1779 	for (i = 0; i < ARCMSR_MAX_FREESRB_NUM; i++)
1780 	{
1781 		srb = acb->psrb_pool[i];
1782 		if (srb->srb_state == ARCMSR_SRB_START)
1783 		{
1784 			if((target == srb->pccb->ccb_h.target_id) && (lun == srb->pccb->ccb_h.target_lun))
1785 			{
1786 				srb->srb_state = ARCMSR_SRB_ABORTED;
1787 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
1788 				arcmsr_srb_complete(srb, 1);
1789 				printf("arcmsr%d: abort scsi id %d lun %d srb=%p \n", acb->pci_unit, target, lun, srb);
1790 			}
1791 		}
1792 	}
1793 	/* enable outbound Post Queue, outbound doorbell Interrupt */
1794 	arcmsr_enable_allintr(acb, intmask_org);
1795 }
1796 /*
1797 **************************************************************************
1798 **************************************************************************
1799 */
1800 static void arcmsr_dr_handle(struct AdapterControlBlock *acb) {
1801 	u_int32_t	devicemap;
1802 	u_int32_t	target, lun;
1803 	u_int32_t	deviceMapCurrent[4]={0};
1804 	u_int8_t	*pDevMap;
1805 
1806 	switch (acb->adapter_type) {
1807 	case ACB_ADAPTER_TYPE_A:
1808 		devicemap = offsetof(struct HBA_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1809 		for (target = 0; target < 4; target++)
1810 		{
1811 			deviceMapCurrent[target]=bus_space_read_4(acb->btag[0], acb->bhandle[0],  devicemap);
1812 			devicemap += 4;
1813 		}
1814 		break;
1815 
1816 	case ACB_ADAPTER_TYPE_B:
1817 		devicemap = offsetof(struct HBB_RWBUFFER, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1818 		for (target = 0; target < 4; target++)
1819 		{
1820 			deviceMapCurrent[target]=bus_space_read_4(acb->btag[1], acb->bhandle[1],  devicemap);
1821 			devicemap += 4;
1822 		}
1823 		break;
1824 
1825 	case ACB_ADAPTER_TYPE_C:
1826 		devicemap = offsetof(struct HBC_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1827 		for (target = 0; target < 4; target++)
1828 		{
1829 			deviceMapCurrent[target]=bus_space_read_4(acb->btag[0], acb->bhandle[0],  devicemap);
1830 			devicemap += 4;
1831 		}
1832 		break;
1833 	case ACB_ADAPTER_TYPE_D:
1834 		devicemap = offsetof(struct HBD_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1835 		for (target = 0; target < 4; target++)
1836 		{
1837 			deviceMapCurrent[target]=bus_space_read_4(acb->btag[0], acb->bhandle[0],  devicemap);
1838 			devicemap += 4;
1839 		}
1840 		break;
1841 	case ACB_ADAPTER_TYPE_E:
1842 		devicemap = offsetof(struct HBE_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1843 		for (target = 0; target < 4; target++)
1844 		{
1845             		deviceMapCurrent[target]=bus_space_read_4(acb->btag[0], acb->bhandle[0],  devicemap);
1846             		devicemap += 4;
1847 		}
1848 		break;
1849 	}
1850 
1851 	if(acb->acb_flags & ACB_F_BUS_HANG_ON)
1852 	{
1853 		acb->acb_flags &= ~ACB_F_BUS_HANG_ON;
1854 	}
1855 	/*
1856 	** adapter posted CONFIG message
1857 	** copy the new map, note if there are differences with the current map
1858 	*/
1859 	pDevMap = (u_int8_t	*)&deviceMapCurrent[0];
1860 	for (target = 0; target < ARCMSR_MAX_TARGETID - 1; target++)
1861 	{
1862 		if (*pDevMap != acb->device_map[target])
1863 		{
1864 			u_int8_t difference, bit_check;
1865 
1866 			difference = *pDevMap ^ acb->device_map[target];
1867 			for(lun=0; lun < ARCMSR_MAX_TARGETLUN; lun++)
1868 			{
1869 				bit_check = (1 << lun);		/*check bit from 0....31*/
1870 				if(difference & bit_check)
1871 				{
1872 					if(acb->device_map[target] & bit_check)
1873 					{/* unit departed */
1874 						printf("arcmsr_dr_handle: Target=%x, lun=%x, GONE!!!\n",target,lun);
1875 						arcmsr_abort_dr_ccbs(acb, target, lun);
1876 						arcmsr_rescan_lun(acb, target, lun);
1877 						acb->devstate[target][lun] = ARECA_RAID_GONE;
1878 					}
1879 					else
1880 					{/* unit arrived */
1881 						printf("arcmsr_dr_handle: Target=%x, lun=%x, Plug-IN!!!\n",target,lun);
1882 						arcmsr_rescan_lun(acb, target, lun);
1883 						acb->devstate[target][lun] = ARECA_RAID_GOOD;
1884 					}
1885 				}
1886 			}
1887 /*			printf("arcmsr_dr_handle: acb->device_map[%x]=0x%x, deviceMapCurrent[%x]=%x\n",target,acb->device_map[target],target,*pDevMap); */
1888 			acb->device_map[target] = *pDevMap;
1889 		}
1890 		pDevMap++;
1891 	}
1892 }
1893 /*
1894 **************************************************************************
1895 **************************************************************************
1896 */
1897 static void arcmsr_hba_message_isr(struct AdapterControlBlock *acb) {
1898 	u_int32_t outbound_message;
1899 
1900 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, ARCMSR_MU_OUTBOUND_MESSAGE0_INT);
1901 	outbound_message = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[0]);
1902 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1903 		arcmsr_dr_handle( acb );
1904 }
1905 /*
1906 **************************************************************************
1907 **************************************************************************
1908 */
1909 static void arcmsr_hbb_message_isr(struct AdapterControlBlock *acb) {
1910 	u_int32_t outbound_message;
1911 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1912 
1913 	/* clear interrupts */
1914 	WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_MESSAGE_INT_CLEAR_PATTERN);
1915 	outbound_message = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[0]);
1916 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1917 		arcmsr_dr_handle( acb );
1918 }
1919 /*
1920 **************************************************************************
1921 **************************************************************************
1922 */
1923 static void arcmsr_hbc_message_isr(struct AdapterControlBlock *acb) {
1924 	u_int32_t outbound_message;
1925 
1926 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, outbound_doorbell_clear, ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR);
1927 	outbound_message = CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[0]);
1928 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1929 		arcmsr_dr_handle( acb );
1930 }
1931 /*
1932 **************************************************************************
1933 **************************************************************************
1934 */
1935 static void arcmsr_hbd_message_isr(struct AdapterControlBlock *acb) {
1936 	u_int32_t outbound_message;
1937 
1938 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE_CLEAR);
1939 	outbound_message = CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[0]);
1940 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1941 		arcmsr_dr_handle( acb );
1942 }
1943 /*
1944 **************************************************************************
1945 **************************************************************************
1946 */
1947 static void arcmsr_hbe_message_isr(struct AdapterControlBlock *acb) {
1948 	u_int32_t outbound_message;
1949 
1950 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_status, 0);
1951 	outbound_message = CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[0]);
1952 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1953 		arcmsr_dr_handle( acb );
1954 }
1955 /*
1956 **************************************************************************
1957 **************************************************************************
1958 */
1959 static void arcmsr_hba_doorbell_isr(struct AdapterControlBlock *acb)
1960 {
1961 	u_int32_t doorbell_status;
1962 
1963 	/*
1964 	*******************************************************************
1965 	**  Maybe here we need to check wrqbuffer_lock is lock or not
1966 	**  DOORBELL: din! don!
1967 	**  check if there are any mail need to pack from firmware
1968 	*******************************************************************
1969 	*/
1970 	doorbell_status = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_doorbell);
1971 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_doorbell, doorbell_status); /* clear doorbell interrupt */
1972 	if(doorbell_status & ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK) {
1973 		arcmsr_iop2drv_data_wrote_handle(acb);
1974 	}
1975 	if(doorbell_status & ARCMSR_OUTBOUND_IOP331_DATA_READ_OK) {
1976 		arcmsr_iop2drv_data_read_handle(acb);
1977 	}
1978 }
1979 /*
1980 **************************************************************************
1981 **************************************************************************
1982 */
1983 static void arcmsr_hbc_doorbell_isr(struct AdapterControlBlock *acb)
1984 {
1985 	u_int32_t doorbell_status;
1986 
1987 	/*
1988 	*******************************************************************
1989 	**  Maybe here we need to check wrqbuffer_lock is lock or not
1990 	**  DOORBELL: din! don!
1991 	**  check if there are any mail need to pack from firmware
1992 	*******************************************************************
1993 	*/
1994 	doorbell_status = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_doorbell);
1995 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, outbound_doorbell_clear, doorbell_status); /* clear doorbell interrupt */
1996 	if(doorbell_status & ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK) {
1997 		arcmsr_iop2drv_data_wrote_handle(acb);
1998 	}
1999 	if(doorbell_status & ARCMSR_HBCMU_IOP2DRV_DATA_READ_OK) {
2000 		arcmsr_iop2drv_data_read_handle(acb);
2001 	}
2002 	if(doorbell_status & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
2003 		arcmsr_hbc_message_isr(acb);    /* messenger of "driver to iop commands" */
2004 	}
2005 }
2006 /*
2007 **************************************************************************
2008 **************************************************************************
2009 */
2010 static void arcmsr_hbd_doorbell_isr(struct AdapterControlBlock *acb)
2011 {
2012 	u_int32_t doorbell_status;
2013 
2014 	/*
2015 	*******************************************************************
2016 	**  Maybe here we need to check wrqbuffer_lock is lock or not
2017 	**  DOORBELL: din! don!
2018 	**  check if there are any mail need to pack from firmware
2019 	*******************************************************************
2020 	*/
2021 	doorbell_status = CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBDMU_F0_DOORBELL_CAUSE;
2022 	if(doorbell_status)
2023 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, doorbell_status); /* clear doorbell interrupt */
2024 	while( doorbell_status & ARCMSR_HBDMU_F0_DOORBELL_CAUSE ) {
2025 		if(doorbell_status & ARCMSR_HBDMU_IOP2DRV_DATA_WRITE_OK) {
2026 			arcmsr_iop2drv_data_wrote_handle(acb);
2027 		}
2028 		if(doorbell_status & ARCMSR_HBDMU_IOP2DRV_DATA_READ_OK) {
2029 			arcmsr_iop2drv_data_read_handle(acb);
2030 		}
2031 		if(doorbell_status & ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE) {
2032 			arcmsr_hbd_message_isr(acb);    /* messenger of "driver to iop commands" */
2033 		}
2034 		doorbell_status = CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBDMU_F0_DOORBELL_CAUSE;
2035 		if(doorbell_status)
2036 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, doorbell_status); /* clear doorbell interrupt */
2037 	}
2038 }
2039 /*
2040 **************************************************************************
2041 **************************************************************************
2042 */
2043 static void arcmsr_hbe_doorbell_isr(struct AdapterControlBlock *acb)
2044 {
2045 	u_int32_t doorbell_status, in_doorbell;
2046 
2047 	/*
2048 	*******************************************************************
2049 	**  Maybe here we need to check wrqbuffer_lock is lock or not
2050 	**  DOORBELL: din! don!
2051 	**  check if there are any mail need to pack from firmware
2052 	*******************************************************************
2053 	*/
2054 	in_doorbell = CHIP_REG_READ32(HBE_MessageUnit, 0, iobound_doorbell);
2055 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_status, 0); /* clear doorbell interrupt */
2056 	doorbell_status = in_doorbell ^ acb->in_doorbell;
2057 	if(doorbell_status & ARCMSR_HBEMU_IOP2DRV_DATA_WRITE_OK) {
2058 		arcmsr_iop2drv_data_wrote_handle(acb);
2059 	}
2060 	if(doorbell_status & ARCMSR_HBEMU_IOP2DRV_DATA_READ_OK) {
2061 		arcmsr_iop2drv_data_read_handle(acb);
2062 	}
2063 	if(doorbell_status & ARCMSR_HBEMU_IOP2DRV_MESSAGE_CMD_DONE) {
2064 		arcmsr_hbe_message_isr(acb);    /* messenger of "driver to iop commands" */
2065 	}
2066 	acb->in_doorbell = in_doorbell;
2067 }
2068 /*
2069 **************************************************************************
2070 **************************************************************************
2071 */
2072 static void arcmsr_hba_postqueue_isr(struct AdapterControlBlock *acb)
2073 {
2074 	u_int32_t flag_srb;
2075 	u_int16_t error;
2076 
2077 	/*
2078 	*****************************************************************************
2079 	**               areca cdb command done
2080 	*****************************************************************************
2081 	*/
2082 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap,
2083 		BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
2084 	while((flag_srb = CHIP_REG_READ32(HBA_MessageUnit,
2085 		0, outbound_queueport)) != 0xFFFFFFFF) {
2086 		/* check if command done with no error*/
2087 	error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0) ? TRUE : FALSE;
2088 		arcmsr_drain_donequeue(acb, flag_srb, error);
2089 	}	/*drain reply FIFO*/
2090 }
2091 /*
2092 **************************************************************************
2093 **************************************************************************
2094 */
2095 static void arcmsr_hbb_postqueue_isr(struct AdapterControlBlock *acb)
2096 {
2097 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
2098 	u_int32_t flag_srb;
2099 	int index;
2100 	u_int16_t error;
2101 
2102 	/*
2103 	*****************************************************************************
2104 	**               areca cdb command done
2105 	*****************************************************************************
2106 	*/
2107 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap,
2108 		BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
2109 	index = phbbmu->doneq_index;
2110 	while((flag_srb = phbbmu->done_qbuffer[index]) != 0) {
2111 		phbbmu->done_qbuffer[index] = 0;
2112 		index++;
2113 		index %= ARCMSR_MAX_HBB_POSTQUEUE;     /*if last index number set it to 0 */
2114 		phbbmu->doneq_index = index;
2115 		/* check if command done with no error*/
2116 	error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0)?TRUE:FALSE;
2117 		arcmsr_drain_donequeue(acb, flag_srb, error);
2118 	}	/*drain reply FIFO*/
2119 }
2120 /*
2121 **************************************************************************
2122 **************************************************************************
2123 */
2124 static void arcmsr_hbc_postqueue_isr(struct AdapterControlBlock *acb)
2125 {
2126 	u_int32_t flag_srb,throttling = 0;
2127 	u_int16_t error;
2128 
2129 	/*
2130 	*****************************************************************************
2131 	**               areca cdb command done
2132 	*****************************************************************************
2133 	*/
2134 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
2135 	do {
2136 		flag_srb = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_queueport_low);
2137 		if (flag_srb == 0xFFFFFFFF)
2138 			break;
2139 		/* check if command done with no error*/
2140 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1)?TRUE:FALSE;
2141 		arcmsr_drain_donequeue(acb, flag_srb, error);
2142 		throttling++;
2143 		if(throttling == ARCMSR_HBC_ISR_THROTTLING_LEVEL) {
2144 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell,ARCMSR_HBCMU_DRV2IOP_POSTQUEUE_THROTTLING);
2145 			throttling = 0;
2146 		}
2147 	} while(CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR);
2148 }
2149 /*
2150 **********************************************************************
2151 **
2152 **********************************************************************
2153 */
2154 static uint16_t arcmsr_get_doneq_index(struct HBD_MessageUnit0 *phbdmu)
2155 {
2156 	uint16_t doneq_index, index_stripped;
2157 
2158 	doneq_index = phbdmu->doneq_index;
2159 	if (doneq_index & 0x4000) {
2160 		index_stripped = doneq_index & 0xFF;
2161 		index_stripped += 1;
2162 		index_stripped %= ARCMSR_MAX_HBD_POSTQUEUE;
2163 		phbdmu->doneq_index = index_stripped ?
2164 		    (index_stripped | 0x4000) : index_stripped;
2165 	} else {
2166 		index_stripped = doneq_index;
2167 		index_stripped += 1;
2168 		index_stripped %= ARCMSR_MAX_HBD_POSTQUEUE;
2169 		phbdmu->doneq_index = index_stripped ?
2170 		    index_stripped : (index_stripped | 0x4000);
2171 	}
2172 	return (phbdmu->doneq_index);
2173 }
2174 /*
2175 **************************************************************************
2176 **************************************************************************
2177 */
2178 static void arcmsr_hbd_postqueue_isr(struct AdapterControlBlock *acb)
2179 {
2180 	struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
2181 	u_int32_t outbound_write_pointer;
2182 	u_int32_t addressLow;
2183 	uint16_t doneq_index;
2184 	u_int16_t error;
2185 	/*
2186 	*****************************************************************************
2187 	**               areca cdb command done
2188 	*****************************************************************************
2189 	*/
2190 	if((CHIP_REG_READ32(HBD_MessageUnit, 0, outboundlist_interrupt_cause) &
2191 		ARCMSR_HBDMU_OUTBOUND_LIST_INTERRUPT) == 0)
2192 		return;
2193 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap,
2194 		BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
2195 	outbound_write_pointer = phbdmu->done_qbuffer[0].addressLow;
2196 	doneq_index = phbdmu->doneq_index;
2197 	while ((doneq_index & 0xFF) != (outbound_write_pointer & 0xFF)) {
2198 		doneq_index = arcmsr_get_doneq_index(phbdmu);
2199 		addressLow = phbdmu->done_qbuffer[(doneq_index & 0xFF)+1].addressLow;
2200 		error = (addressLow & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1) ? TRUE : FALSE;
2201 		arcmsr_drain_donequeue(acb, addressLow, error); /*Check if command done with no error */
2202 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, outboundlist_read_pointer, doneq_index);
2203 		outbound_write_pointer = phbdmu->done_qbuffer[0].addressLow;
2204 	}
2205 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, outboundlist_interrupt_cause, ARCMSR_HBDMU_OUTBOUND_LIST_INTERRUPT_CLEAR);
2206 	CHIP_REG_READ32(HBD_MessageUnit, 0, outboundlist_interrupt_cause); /*Dummy ioread32 to force pci flush */
2207 }
2208 /*
2209 **************************************************************************
2210 **************************************************************************
2211 */
2212 static void arcmsr_hbe_postqueue_isr(struct AdapterControlBlock *acb)
2213 {
2214 	u_int16_t error;
2215 	uint32_t doneq_index;
2216 	uint16_t cmdSMID;
2217 
2218 	/*
2219 	*****************************************************************************
2220 	**               areca cdb command done
2221 	*****************************************************************************
2222 	*/
2223 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
2224 	doneq_index = acb->doneq_index;
2225 	while ((CHIP_REG_READ32(HBE_MessageUnit, 0, reply_post_producer_index) & 0xFFFF) != doneq_index) {
2226 		cmdSMID = acb->pCompletionQ[doneq_index].cmdSMID;
2227 		error = (acb->pCompletionQ[doneq_index].cmdFlag & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1) ? TRUE : FALSE;
2228 		arcmsr_drain_donequeue(acb, (u_int32_t)cmdSMID, error);
2229 		doneq_index++;
2230 		if (doneq_index >= acb->completionQ_entry)
2231 			doneq_index = 0;
2232 	}
2233 	acb->doneq_index = doneq_index;
2234 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, reply_post_consumer_index, doneq_index);
2235 }
2236 /*
2237 **********************************************************************
2238 **********************************************************************
2239 */
2240 static void arcmsr_handle_hba_isr( struct AdapterControlBlock *acb)
2241 {
2242 	u_int32_t outbound_intStatus;
2243 	/*
2244 	*********************************************
2245 	**   check outbound intstatus
2246 	*********************************************
2247 	*/
2248 	outbound_intStatus = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intstatus) & acb->outbound_int_enable;
2249 	if(!outbound_intStatus) {
2250 		/*it must be share irq*/
2251 		return;
2252 	}
2253 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, outbound_intStatus); /*clear interrupt*/
2254 	/* MU doorbell interrupts*/
2255 	if(outbound_intStatus & ARCMSR_MU_OUTBOUND_DOORBELL_INT) {
2256 		arcmsr_hba_doorbell_isr(acb);
2257 	}
2258 	/* MU post queue interrupts*/
2259 	if(outbound_intStatus & ARCMSR_MU_OUTBOUND_POSTQUEUE_INT) {
2260 		arcmsr_hba_postqueue_isr(acb);
2261 	}
2262 	if(outbound_intStatus & ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
2263 		arcmsr_hba_message_isr(acb);
2264 	}
2265 }
2266 /*
2267 **********************************************************************
2268 **********************************************************************
2269 */
2270 static void arcmsr_handle_hbb_isr( struct AdapterControlBlock *acb)
2271 {
2272 	u_int32_t outbound_doorbell;
2273 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
2274 	/*
2275 	*********************************************
2276 	**   check outbound intstatus
2277 	*********************************************
2278 	*/
2279 	outbound_doorbell = READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell) & acb->outbound_int_enable;
2280 	if(!outbound_doorbell) {
2281 		/*it must be share irq*/
2282 		return;
2283 	}
2284 	WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ~outbound_doorbell); /* clear doorbell interrupt */
2285 	READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell);
2286 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_END_OF_INTERRUPT);
2287 	/* MU ioctl transfer doorbell interrupts*/
2288 	if(outbound_doorbell & ARCMSR_IOP2DRV_DATA_WRITE_OK) {
2289 		arcmsr_iop2drv_data_wrote_handle(acb);
2290 	}
2291 	if(outbound_doorbell & ARCMSR_IOP2DRV_DATA_READ_OK) {
2292 		arcmsr_iop2drv_data_read_handle(acb);
2293 	}
2294 	/* MU post queue interrupts*/
2295 	if(outbound_doorbell & ARCMSR_IOP2DRV_CDB_DONE) {
2296 		arcmsr_hbb_postqueue_isr(acb);
2297 	}
2298 	if(outbound_doorbell & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
2299 		arcmsr_hbb_message_isr(acb);
2300 	}
2301 }
2302 /*
2303 **********************************************************************
2304 **********************************************************************
2305 */
2306 static void arcmsr_handle_hbc_isr( struct AdapterControlBlock *acb)
2307 {
2308 	u_int32_t host_interrupt_status;
2309 	/*
2310 	*********************************************
2311 	**   check outbound intstatus
2312 	*********************************************
2313 	*/
2314 	host_interrupt_status = CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status) &
2315 		(ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR |
2316 		ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR);
2317 	if(!host_interrupt_status) {
2318 		/*it must be share irq*/
2319 		return;
2320 	}
2321 	do {
2322 		/* MU doorbell interrupts*/
2323 		if(host_interrupt_status & ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR) {
2324 			arcmsr_hbc_doorbell_isr(acb);
2325 		}
2326 		/* MU post queue interrupts*/
2327 		if(host_interrupt_status & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) {
2328 			arcmsr_hbc_postqueue_isr(acb);
2329 		}
2330 		host_interrupt_status = CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status);
2331 	} while (host_interrupt_status & (ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR | ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR));
2332 }
2333 /*
2334 **********************************************************************
2335 **********************************************************************
2336 */
2337 static void arcmsr_handle_hbd_isr( struct AdapterControlBlock *acb)
2338 {
2339 	u_int32_t host_interrupt_status;
2340 	u_int32_t intmask_org;
2341 	/*
2342 	*********************************************
2343 	**   check outbound intstatus
2344 	*********************************************
2345 	*/
2346 	host_interrupt_status = CHIP_REG_READ32(HBD_MessageUnit, 0, host_int_status) & acb->outbound_int_enable;
2347 	if(!(host_interrupt_status & ARCMSR_HBDMU_OUTBOUND_INT)) {
2348 		/*it must be share irq*/
2349 		return;
2350 	}
2351 	/* disable outbound interrupt */
2352 	intmask_org = CHIP_REG_READ32(HBD_MessageUnit, 0, pcief0_int_enable)	; /* disable outbound message0 int */
2353 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, pcief0_int_enable, ARCMSR_HBDMU_ALL_INT_DISABLE);
2354 	/* MU doorbell interrupts*/
2355 	if(host_interrupt_status & ARCMSR_HBDMU_OUTBOUND_DOORBELL_INT) {
2356 		arcmsr_hbd_doorbell_isr(acb);
2357 	}
2358 	/* MU post queue interrupts*/
2359 	if(host_interrupt_status & ARCMSR_HBDMU_OUTBOUND_POSTQUEUE_INT) {
2360 		arcmsr_hbd_postqueue_isr(acb);
2361 	}
2362 	/* enable all outbound interrupt */
2363 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, pcief0_int_enable, intmask_org | ARCMSR_HBDMU_ALL_INT_ENABLE);
2364 //	CHIP_REG_READ32(HBD_MessageUnit, 0, pcief0_int_enable);
2365 }
2366 /*
2367 **********************************************************************
2368 **********************************************************************
2369 */
2370 static void arcmsr_handle_hbe_isr( struct AdapterControlBlock *acb)
2371 {
2372 	u_int32_t host_interrupt_status;
2373 	/*
2374 	*********************************************
2375 	**   check outbound intstatus
2376 	*********************************************
2377 	*/
2378 	host_interrupt_status = CHIP_REG_READ32(HBE_MessageUnit, 0, host_int_status) &
2379 		(ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR |
2380 		ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR);
2381 	if(!host_interrupt_status) {
2382 		/*it must be share irq*/
2383 		return;
2384 	}
2385 	do {
2386 		/* MU doorbell interrupts*/
2387 		if(host_interrupt_status & ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR) {
2388 			arcmsr_hbe_doorbell_isr(acb);
2389 		}
2390 		/* MU post queue interrupts*/
2391 		if(host_interrupt_status & ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR) {
2392 			arcmsr_hbe_postqueue_isr(acb);
2393 		}
2394 		host_interrupt_status = CHIP_REG_READ32(HBE_MessageUnit, 0, host_int_status);
2395 	} while (host_interrupt_status & (ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR | ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR));
2396 }
2397 /*
2398 ******************************************************************************
2399 ******************************************************************************
2400 */
2401 static void arcmsr_interrupt(struct AdapterControlBlock *acb)
2402 {
2403 	switch (acb->adapter_type) {
2404 	case ACB_ADAPTER_TYPE_A:
2405 		arcmsr_handle_hba_isr(acb);
2406 		break;
2407 	case ACB_ADAPTER_TYPE_B:
2408 		arcmsr_handle_hbb_isr(acb);
2409 		break;
2410 	case ACB_ADAPTER_TYPE_C:
2411 		arcmsr_handle_hbc_isr(acb);
2412 		break;
2413 	case ACB_ADAPTER_TYPE_D:
2414 		arcmsr_handle_hbd_isr(acb);
2415 		break;
2416 	case ACB_ADAPTER_TYPE_E:
2417 		arcmsr_handle_hbe_isr(acb);
2418 		break;
2419 	default:
2420 		printf("arcmsr%d: interrupt service,"
2421 		" unknown adapter type =%d\n", acb->pci_unit, acb->adapter_type);
2422 		break;
2423 	}
2424 }
2425 /*
2426 **********************************************************************
2427 **********************************************************************
2428 */
2429 static void arcmsr_intr_handler(void *arg)
2430 {
2431 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *)arg;
2432 
2433 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
2434 	arcmsr_interrupt(acb);
2435 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
2436 }
2437 /*
2438 ******************************************************************************
2439 ******************************************************************************
2440 */
2441 static void	arcmsr_polling_devmap(void *arg)
2442 {
2443 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *)arg;
2444 	switch (acb->adapter_type) {
2445 	case ACB_ADAPTER_TYPE_A:
2446 		CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
2447 		break;
2448 
2449     	case ACB_ADAPTER_TYPE_B: {
2450 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
2451 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_GET_CONFIG);
2452 		}
2453 		break;
2454 
2455 	case ACB_ADAPTER_TYPE_C:
2456 		CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
2457 		CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
2458 		break;
2459 
2460 	case ACB_ADAPTER_TYPE_D:
2461 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
2462 		break;
2463 
2464     	case ACB_ADAPTER_TYPE_E:
2465 		CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
2466 		acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
2467 		CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
2468 	    	break;
2469 	}
2470 
2471 	if((acb->acb_flags & ACB_F_SCSISTOPADAPTER) == 0)
2472 	{
2473 		callout_reset(&acb->devmap_callout, 5 * hz, arcmsr_polling_devmap, acb);	/* polling per 5 seconds */
2474 	}
2475 }
2476 
2477 /*
2478 *******************************************************************************
2479 **
2480 *******************************************************************************
2481 */
2482 static void arcmsr_iop_parking(struct AdapterControlBlock *acb)
2483 {
2484 	u_int32_t intmask_org;
2485 
2486 	if(acb != NULL) {
2487 		/* stop adapter background rebuild */
2488 		if(acb->acb_flags & ACB_F_MSG_START_BGRB) {
2489 			intmask_org = arcmsr_disable_allintr(acb);
2490 			arcmsr_stop_adapter_bgrb(acb);
2491 			arcmsr_flush_adapter_cache(acb);
2492 			arcmsr_enable_allintr(acb, intmask_org);
2493 		}
2494 	}
2495 }
2496 /*
2497 ***********************************************************************
2498 **
2499 ************************************************************************
2500 */
2501 static u_int32_t arcmsr_iop_ioctlcmd(struct AdapterControlBlock *acb, u_int32_t ioctl_cmd, caddr_t arg)
2502 {
2503 	struct CMD_MESSAGE_FIELD *pcmdmessagefld;
2504 	u_int32_t retvalue = EINVAL;
2505 
2506 	pcmdmessagefld = (struct CMD_MESSAGE_FIELD *) arg;
2507 	if(memcmp(pcmdmessagefld->cmdmessage.Signature, "ARCMSR", 6)!=0) {
2508 		return retvalue;
2509 	}
2510 	ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2511 	switch(ioctl_cmd) {
2512 	case ARCMSR_MESSAGE_READ_RQBUFFER: {
2513 			u_int8_t *pQbuffer;
2514 			u_int8_t *ptmpQbuffer = pcmdmessagefld->messagedatabuffer;
2515 			u_int32_t allxfer_len=0;
2516 
2517 			while((acb->rqbuf_firstindex != acb->rqbuf_lastindex)
2518 				&& (allxfer_len < 1031)) {
2519 				/*copy READ QBUFFER to srb*/
2520 				pQbuffer = &acb->rqbuffer[acb->rqbuf_firstindex];
2521 				*ptmpQbuffer = *pQbuffer;
2522 				acb->rqbuf_firstindex++;
2523 				acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
2524 				/*if last index number set it to 0 */
2525 				ptmpQbuffer++;
2526 				allxfer_len++;
2527 			}
2528 			if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2529 				struct QBUFFER *prbuffer;
2530 
2531 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2532 				prbuffer = arcmsr_get_iop_rqbuffer(acb);
2533 				if(arcmsr_Read_iop_rqbuffer_data(acb, prbuffer) == 0)
2534 					acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
2535 			}
2536 			pcmdmessagefld->cmdmessage.Length = allxfer_len;
2537 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2538 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2539 		}
2540 		break;
2541 	case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
2542 			u_int32_t my_empty_len, user_len, wqbuf_firstindex, wqbuf_lastindex;
2543 			u_int8_t *pQbuffer;
2544 			u_int8_t *ptmpuserbuffer = pcmdmessagefld->messagedatabuffer;
2545 
2546 			user_len = pcmdmessagefld->cmdmessage.Length;
2547 			/*check if data xfer length of this request will overflow my array qbuffer */
2548 			wqbuf_lastindex = acb->wqbuf_lastindex;
2549 			wqbuf_firstindex = acb->wqbuf_firstindex;
2550 			if(wqbuf_lastindex != wqbuf_firstindex) {
2551 				arcmsr_Write_data_2iop_wqbuffer(acb);
2552 				pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_ERROR;
2553 			} else {
2554 				my_empty_len = (wqbuf_firstindex - wqbuf_lastindex - 1) &
2555 					(ARCMSR_MAX_QBUFFER - 1);
2556 				if(my_empty_len >= user_len) {
2557 					while(user_len > 0) {
2558 						/*copy srb data to wqbuffer*/
2559 						pQbuffer = &acb->wqbuffer[acb->wqbuf_lastindex];
2560 						*pQbuffer = *ptmpuserbuffer;
2561 						acb->wqbuf_lastindex++;
2562 						acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
2563 						/*if last index number set it to 0 */
2564 						ptmpuserbuffer++;
2565 						user_len--;
2566 					}
2567 					/*post fist Qbuffer*/
2568 					if(acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
2569 						acb->acb_flags &= ~ACB_F_MESSAGE_WQBUFFER_CLEARED;
2570 						arcmsr_Write_data_2iop_wqbuffer(acb);
2571 					}
2572 					pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2573 				} else {
2574 					pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_ERROR;
2575 				}
2576 			}
2577 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2578 		}
2579 		break;
2580 	case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
2581 			u_int8_t *pQbuffer = acb->rqbuffer;
2582 
2583 			if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2584 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2585 				arcmsr_iop_message_read(acb);
2586 				/*signature, let IOP know data has been readed */
2587 			}
2588 			acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
2589 			acb->rqbuf_firstindex = 0;
2590 			acb->rqbuf_lastindex = 0;
2591 			memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
2592 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2593 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2594 		}
2595 		break;
2596 	case ARCMSR_MESSAGE_CLEAR_WQBUFFER:
2597 		{
2598 			u_int8_t *pQbuffer = acb->wqbuffer;
2599 
2600 			if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2601 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2602 				arcmsr_iop_message_read(acb);
2603 				/*signature, let IOP know data has been readed */
2604 			}
2605 			acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED|ACB_F_MESSAGE_WQBUFFER_READ);
2606 			acb->wqbuf_firstindex = 0;
2607 			acb->wqbuf_lastindex = 0;
2608 			memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
2609 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2610 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2611 		}
2612 		break;
2613 	case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: {
2614 			u_int8_t *pQbuffer;
2615 
2616 			if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2617 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2618 				arcmsr_iop_message_read(acb);
2619 				/*signature, let IOP know data has been readed */
2620 			}
2621 			acb->acb_flags  |= (ACB_F_MESSAGE_WQBUFFER_CLEARED
2622 					|ACB_F_MESSAGE_RQBUFFER_CLEARED
2623 					|ACB_F_MESSAGE_WQBUFFER_READ);
2624 			acb->rqbuf_firstindex = 0;
2625 			acb->rqbuf_lastindex = 0;
2626 			acb->wqbuf_firstindex = 0;
2627 			acb->wqbuf_lastindex = 0;
2628 			pQbuffer = acb->rqbuffer;
2629 			memset(pQbuffer, 0, sizeof(struct QBUFFER));
2630 			pQbuffer = acb->wqbuffer;
2631 			memset(pQbuffer, 0, sizeof(struct QBUFFER));
2632 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2633 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2634 		}
2635 		break;
2636 	case ARCMSR_MESSAGE_REQUEST_RETURNCODE_3F: {
2637 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_3F;
2638 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2639 		}
2640 		break;
2641 	case ARCMSR_MESSAGE_SAY_HELLO: {
2642 			u_int8_t *hello_string = "Hello! I am ARCMSR";
2643 			u_int8_t *puserbuffer = (u_int8_t *)pcmdmessagefld->messagedatabuffer;
2644 
2645 			if(memcpy(puserbuffer, hello_string, (int16_t)strlen(hello_string))) {
2646 				pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_ERROR;
2647 				ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2648 				return ENOIOCTL;
2649 			}
2650 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2651 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2652 		}
2653 		break;
2654 	case ARCMSR_MESSAGE_SAY_GOODBYE: {
2655 			arcmsr_iop_parking(acb);
2656 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2657 		}
2658 		break;
2659 	case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE: {
2660 			arcmsr_flush_adapter_cache(acb);
2661 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2662 		}
2663 		break;
2664 	}
2665 	ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2666 	return (retvalue);
2667 }
2668 /*
2669 **************************************************************************
2670 **************************************************************************
2671 */
2672 static void arcmsr_free_srb(struct CommandControlBlock *srb)
2673 {
2674 	struct AdapterControlBlock	*acb;
2675 
2676 	acb = srb->acb;
2677 	ARCMSR_LOCK_ACQUIRE(&acb->srb_lock);
2678 	srb->srb_state = ARCMSR_SRB_DONE;
2679 	srb->srb_flags = 0;
2680 	acb->srbworkingQ[acb->workingsrb_doneindex] = srb;
2681 	acb->workingsrb_doneindex++;
2682 	acb->workingsrb_doneindex %= ARCMSR_MAX_FREESRB_NUM;
2683 	ARCMSR_LOCK_RELEASE(&acb->srb_lock);
2684 }
2685 /*
2686 **************************************************************************
2687 **************************************************************************
2688 */
2689 static struct CommandControlBlock *arcmsr_get_freesrb(struct AdapterControlBlock *acb)
2690 {
2691 	struct CommandControlBlock *srb = NULL;
2692 	u_int32_t workingsrb_startindex, workingsrb_doneindex;
2693 
2694 	ARCMSR_LOCK_ACQUIRE(&acb->srb_lock);
2695 	workingsrb_doneindex = acb->workingsrb_doneindex;
2696 	workingsrb_startindex = acb->workingsrb_startindex;
2697 	srb = acb->srbworkingQ[workingsrb_startindex];
2698 	workingsrb_startindex++;
2699 	workingsrb_startindex %= ARCMSR_MAX_FREESRB_NUM;
2700 	if(workingsrb_doneindex != workingsrb_startindex) {
2701 		acb->workingsrb_startindex = workingsrb_startindex;
2702 	} else {
2703 		srb = NULL;
2704 	}
2705 	ARCMSR_LOCK_RELEASE(&acb->srb_lock);
2706 	return(srb);
2707 }
2708 /*
2709 **************************************************************************
2710 **************************************************************************
2711 */
2712 static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, union ccb *pccb)
2713 {
2714 	struct CMD_MESSAGE_FIELD *pcmdmessagefld;
2715 	int retvalue = 0, transfer_len = 0;
2716 	char *buffer;
2717 	uint8_t *ptr = scsiio_cdb_ptr(&pccb->csio);
2718 	u_int32_t controlcode = (u_int32_t ) ptr[5] << 24 |
2719 				(u_int32_t ) ptr[6] << 16 |
2720 				(u_int32_t ) ptr[7] << 8  |
2721 				(u_int32_t ) ptr[8];
2722 					/* 4 bytes: Areca io control code */
2723 	if ((pccb->ccb_h.flags & CAM_DATA_MASK) == CAM_DATA_VADDR) {
2724 		buffer = pccb->csio.data_ptr;
2725 		transfer_len = pccb->csio.dxfer_len;
2726 	} else {
2727 		retvalue = ARCMSR_MESSAGE_FAIL;
2728 		goto message_out;
2729 	}
2730 	if (transfer_len > sizeof(struct CMD_MESSAGE_FIELD)) {
2731 		retvalue = ARCMSR_MESSAGE_FAIL;
2732 		goto message_out;
2733 	}
2734 	pcmdmessagefld = (struct CMD_MESSAGE_FIELD *) buffer;
2735 	switch(controlcode) {
2736 	case ARCMSR_MESSAGE_READ_RQBUFFER: {
2737 			u_int8_t *pQbuffer;
2738 			u_int8_t *ptmpQbuffer = pcmdmessagefld->messagedatabuffer;
2739 			int32_t allxfer_len = 0;
2740 
2741 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2742 			while ((acb->rqbuf_firstindex != acb->rqbuf_lastindex)
2743 				&& (allxfer_len < 1031)) {
2744 				pQbuffer = &acb->rqbuffer[acb->rqbuf_firstindex];
2745 				*ptmpQbuffer = *pQbuffer;
2746 				acb->rqbuf_firstindex++;
2747 				acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
2748 				ptmpQbuffer++;
2749 				allxfer_len++;
2750 			}
2751 			if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2752 				struct QBUFFER  *prbuffer;
2753 
2754 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2755 				prbuffer = arcmsr_get_iop_rqbuffer(acb);
2756 				if(arcmsr_Read_iop_rqbuffer_data(acb, prbuffer) == 0)
2757 					acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
2758 			}
2759 			pcmdmessagefld->cmdmessage.Length = allxfer_len;
2760 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2761 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2762 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2763 		}
2764 		break;
2765 	case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
2766 			int32_t my_empty_len, user_len, wqbuf_firstindex, wqbuf_lastindex;
2767 			u_int8_t *pQbuffer;
2768 			u_int8_t *ptmpuserbuffer = pcmdmessagefld->messagedatabuffer;
2769 
2770 			user_len = pcmdmessagefld->cmdmessage.Length;
2771 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2772 			wqbuf_lastindex = acb->wqbuf_lastindex;
2773 			wqbuf_firstindex = acb->wqbuf_firstindex;
2774 			if (wqbuf_lastindex != wqbuf_firstindex) {
2775 				arcmsr_Write_data_2iop_wqbuffer(acb);
2776 				/* has error report sensedata */
2777 				if(pccb->csio.sense_len) {
2778 				((u_int8_t *)&pccb->csio.sense_data)[0] = (0x1 << 7 | 0x70);
2779 				/* Valid,ErrorCode */
2780 				((u_int8_t *)&pccb->csio.sense_data)[2] = 0x05;
2781 				/* FileMark,EndOfMedia,IncorrectLength,Reserved,SenseKey */
2782 				((u_int8_t *)&pccb->csio.sense_data)[7] = 0x0A;
2783 				/* AdditionalSenseLength */
2784 				((u_int8_t *)&pccb->csio.sense_data)[12] = 0x20;
2785 				/* AdditionalSenseCode */
2786 				}
2787 				retvalue = ARCMSR_MESSAGE_FAIL;
2788 			} else {
2789 				my_empty_len = (wqbuf_firstindex-wqbuf_lastindex - 1)
2790 						&(ARCMSR_MAX_QBUFFER - 1);
2791 				if (my_empty_len >= user_len) {
2792 					while (user_len > 0) {
2793 						pQbuffer = &acb->wqbuffer[acb->wqbuf_lastindex];
2794 						*pQbuffer = *ptmpuserbuffer;
2795 						acb->wqbuf_lastindex++;
2796 						acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
2797 						ptmpuserbuffer++;
2798 						user_len--;
2799 					}
2800 					if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
2801 						acb->acb_flags &=
2802 						    ~ACB_F_MESSAGE_WQBUFFER_CLEARED;
2803 						arcmsr_Write_data_2iop_wqbuffer(acb);
2804 					}
2805 				} else {
2806 					/* has error report sensedata */
2807 					if(pccb->csio.sense_len) {
2808 					((u_int8_t *)&pccb->csio.sense_data)[0] = (0x1 << 7 | 0x70);
2809 					/* Valid,ErrorCode */
2810 					((u_int8_t *)&pccb->csio.sense_data)[2] = 0x05;
2811 					/* FileMark,EndOfMedia,IncorrectLength,Reserved,SenseKey */
2812 					((u_int8_t *)&pccb->csio.sense_data)[7] = 0x0A;
2813 					/* AdditionalSenseLength */
2814 					((u_int8_t *)&pccb->csio.sense_data)[12] = 0x20;
2815 					/* AdditionalSenseCode */
2816 					}
2817 					retvalue = ARCMSR_MESSAGE_FAIL;
2818 				}
2819 			}
2820 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2821 		}
2822 		break;
2823 	case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
2824 			u_int8_t *pQbuffer = acb->rqbuffer;
2825 
2826 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2827 			if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2828 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2829 				arcmsr_iop_message_read(acb);
2830 			}
2831 			acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
2832 			acb->rqbuf_firstindex = 0;
2833 			acb->rqbuf_lastindex = 0;
2834 			memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
2835 			pcmdmessagefld->cmdmessage.ReturnCode =
2836 			    ARCMSR_MESSAGE_RETURNCODE_OK;
2837 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2838 		}
2839 		break;
2840 	case ARCMSR_MESSAGE_CLEAR_WQBUFFER: {
2841 			u_int8_t *pQbuffer = acb->wqbuffer;
2842 
2843 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2844 			if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2845 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2846 				arcmsr_iop_message_read(acb);
2847 			}
2848 			acb->acb_flags |=
2849 				(ACB_F_MESSAGE_WQBUFFER_CLEARED |
2850 					ACB_F_MESSAGE_WQBUFFER_READ);
2851 			acb->wqbuf_firstindex = 0;
2852 			acb->wqbuf_lastindex = 0;
2853 			memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
2854 			pcmdmessagefld->cmdmessage.ReturnCode =
2855 				ARCMSR_MESSAGE_RETURNCODE_OK;
2856 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2857 		}
2858 		break;
2859 	case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: {
2860 			u_int8_t *pQbuffer;
2861 
2862 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2863 			if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2864 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2865 				arcmsr_iop_message_read(acb);
2866 			}
2867 			acb->acb_flags |=
2868 				(ACB_F_MESSAGE_WQBUFFER_CLEARED
2869 				| ACB_F_MESSAGE_RQBUFFER_CLEARED
2870 				| ACB_F_MESSAGE_WQBUFFER_READ);
2871 			acb->rqbuf_firstindex = 0;
2872 			acb->rqbuf_lastindex = 0;
2873 			acb->wqbuf_firstindex = 0;
2874 			acb->wqbuf_lastindex = 0;
2875 			pQbuffer = acb->rqbuffer;
2876 			memset(pQbuffer, 0, sizeof (struct QBUFFER));
2877 			pQbuffer = acb->wqbuffer;
2878 			memset(pQbuffer, 0, sizeof (struct QBUFFER));
2879 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2880 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2881 		}
2882 		break;
2883 	case ARCMSR_MESSAGE_REQUEST_RETURNCODE_3F: {
2884 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_3F;
2885 		}
2886 		break;
2887 	case ARCMSR_MESSAGE_SAY_HELLO: {
2888 			int8_t *hello_string = "Hello! I am ARCMSR";
2889 
2890 			memcpy(pcmdmessagefld->messagedatabuffer, hello_string
2891 				, (int16_t)strlen(hello_string));
2892 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2893 		}
2894 		break;
2895 	case ARCMSR_MESSAGE_SAY_GOODBYE:
2896 		arcmsr_iop_parking(acb);
2897 		break;
2898 	case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE:
2899 		arcmsr_flush_adapter_cache(acb);
2900 		break;
2901 	default:
2902 		retvalue = ARCMSR_MESSAGE_FAIL;
2903 	}
2904 message_out:
2905 	return (retvalue);
2906 }
2907 /*
2908 *********************************************************************
2909 *********************************************************************
2910 */
2911 static void arcmsr_execute_srb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
2912 {
2913 	struct CommandControlBlock *srb = (struct CommandControlBlock *)arg;
2914 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *)srb->acb;
2915 	union ccb *pccb;
2916 	int target, lun;
2917 
2918 	pccb = srb->pccb;
2919 	target = pccb->ccb_h.target_id;
2920 	lun = pccb->ccb_h.target_lun;
2921 	acb->pktRequestCount++;
2922 	if(error != 0) {
2923 		if(error != EFBIG) {
2924 			printf("arcmsr%d: unexpected error %x"
2925 				" returned from 'bus_dmamap_load' \n"
2926 				, acb->pci_unit, error);
2927 		}
2928 		if((pccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INPROG) {
2929 			pccb->ccb_h.status |= CAM_REQ_TOO_BIG;
2930 		}
2931 		arcmsr_srb_complete(srb, 0);
2932 		return;
2933 	}
2934 	if(nseg > ARCMSR_MAX_SG_ENTRIES) {
2935 		pccb->ccb_h.status |= CAM_REQ_TOO_BIG;
2936 		arcmsr_srb_complete(srb, 0);
2937 		return;
2938 	}
2939 	if(acb->acb_flags & ACB_F_BUS_RESET) {
2940 		printf("arcmsr%d: bus reset and return busy \n", acb->pci_unit);
2941 		pccb->ccb_h.status |= CAM_SCSI_BUS_RESET;
2942 		arcmsr_srb_complete(srb, 0);
2943 		return;
2944 	}
2945 	if(acb->devstate[target][lun] == ARECA_RAID_GONE) {
2946 		u_int8_t block_cmd, cmd;
2947 
2948 		cmd = scsiio_cdb_ptr(&pccb->csio)[0];
2949 		block_cmd = cmd & 0x0f;
2950 		if(block_cmd == 0x08 || block_cmd == 0x0a) {
2951 			printf("arcmsr%d:block 'read/write' command "
2952 				"with gone raid volume Cmd=0x%2x, TargetId=%d, Lun=%d \n"
2953 				, acb->pci_unit, cmd, target, lun);
2954 			pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
2955 			arcmsr_srb_complete(srb, 0);
2956 			return;
2957 		}
2958 	}
2959 	if((pccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
2960 		if(nseg != 0) {
2961 			bus_dmamap_unload(acb->dm_segs_dmat, srb->dm_segs_dmamap);
2962 		}
2963 		arcmsr_srb_complete(srb, 0);
2964 		return;
2965 	}
2966 	if(acb->srboutstandingcount >= acb->maxOutstanding) {
2967 		if((acb->acb_flags & ACB_F_CAM_DEV_QFRZN) == 0)
2968 		{
2969 			xpt_freeze_simq(acb->psim, 1);
2970 			acb->acb_flags |= ACB_F_CAM_DEV_QFRZN;
2971 		}
2972 		pccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2973 		pccb->ccb_h.status |= CAM_REQUEUE_REQ;
2974 		arcmsr_srb_complete(srb, 0);
2975 		return;
2976 	}
2977 	pccb->ccb_h.status |= CAM_SIM_QUEUED;
2978 	arcmsr_build_srb(srb, dm_segs, nseg);
2979 	arcmsr_post_srb(acb, srb);
2980 	if (pccb->ccb_h.timeout != CAM_TIME_INFINITY)
2981 	{
2982 		arcmsr_callout_init(&srb->ccb_callout);
2983 		callout_reset_sbt(&srb->ccb_callout, SBT_1MS *
2984 		    (pccb->ccb_h.timeout + (ARCMSR_TIMEOUT_DELAY * 1000)), 0,
2985 		    arcmsr_srb_timeout, srb, 0);
2986 		srb->srb_flags |= SRB_FLAG_TIMER_START;
2987 	}
2988 }
2989 /*
2990 *****************************************************************************************
2991 *****************************************************************************************
2992 */
2993 static u_int8_t arcmsr_seek_cmd2abort(union ccb *abortccb)
2994 {
2995 	struct CommandControlBlock *srb;
2996 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *) abortccb->ccb_h.arcmsr_ccbacb_ptr;
2997 	u_int32_t intmask_org;
2998 	int i = 0;
2999 
3000 	acb->num_aborts++;
3001 	/*
3002 	***************************************************************************
3003 	** It is the upper layer do abort command this lock just prior to calling us.
3004 	** First determine if we currently own this command.
3005 	** Start by searching the device queue. If not found
3006 	** at all, and the system wanted us to just abort the
3007 	** command return success.
3008 	***************************************************************************
3009 	*/
3010 	if(acb->srboutstandingcount != 0) {
3011 		/* disable all outbound interrupt */
3012 		intmask_org = arcmsr_disable_allintr(acb);
3013 		for(i=0; i < ARCMSR_MAX_FREESRB_NUM; i++) {
3014 			srb = acb->psrb_pool[i];
3015 			if(srb->srb_state == ARCMSR_SRB_START) {
3016 				if(srb->pccb == abortccb) {
3017 					srb->srb_state = ARCMSR_SRB_ABORTED;
3018 					printf("arcmsr%d:scsi id=%d lun=%jx abort srb '%p'"
3019 						"outstanding command \n"
3020 						, acb->pci_unit, abortccb->ccb_h.target_id
3021 						, (uintmax_t)abortccb->ccb_h.target_lun, srb);
3022 					arcmsr_polling_srbdone(acb, srb);
3023 					/* enable outbound Post Queue, outbound doorbell Interrupt */
3024 					arcmsr_enable_allintr(acb, intmask_org);
3025 					return (TRUE);
3026 				}
3027 			}
3028 		}
3029 		/* enable outbound Post Queue, outbound doorbell Interrupt */
3030 		arcmsr_enable_allintr(acb, intmask_org);
3031 	}
3032 	return(FALSE);
3033 }
3034 /*
3035 ****************************************************************************
3036 ****************************************************************************
3037 */
3038 static void arcmsr_bus_reset(struct AdapterControlBlock *acb)
3039 {
3040 	int retry = 0;
3041 
3042 	acb->num_resets++;
3043 	acb->acb_flags |= ACB_F_BUS_RESET;
3044 	while(acb->srboutstandingcount != 0 && retry < 400) {
3045 		arcmsr_interrupt(acb);
3046 		UDELAY(25000);
3047 		retry++;
3048 	}
3049 	arcmsr_iop_reset(acb);
3050 	acb->acb_flags &= ~ACB_F_BUS_RESET;
3051 }
3052 /*
3053 **************************************************************************
3054 **************************************************************************
3055 */
3056 static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb,
3057 		union ccb *pccb)
3058 {
3059 	if (pccb->ccb_h.target_lun) {
3060 		pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
3061 		xpt_done(pccb);
3062 		return;
3063 	}
3064 	pccb->ccb_h.status |= CAM_REQ_CMP;
3065 	switch (scsiio_cdb_ptr(&pccb->csio)[0]) {
3066 	case INQUIRY: {
3067 		unsigned char inqdata[36];
3068 		char *buffer = pccb->csio.data_ptr;
3069 
3070 		inqdata[0] = T_PROCESSOR;	/* Periph Qualifier & Periph Dev Type */
3071 		inqdata[1] = 0;			/* rem media bit & Dev Type Modifier */
3072 		inqdata[2] = 0;			/* ISO, ECMA, & ANSI versions */
3073 		inqdata[3] = 0;
3074 		inqdata[4] = 31;		/* length of additional data */
3075 		inqdata[5] = 0;
3076 		inqdata[6] = 0;
3077 		inqdata[7] = 0;
3078 		strncpy(&inqdata[8], "Areca   ", 8);	/* Vendor Identification */
3079 		strncpy(&inqdata[16], "RAID controller ", 16);	/* Product Identification */
3080 		strncpy(&inqdata[32], "R001", 4); /* Product Revision */
3081 		memcpy(buffer, inqdata, sizeof(inqdata));
3082 		xpt_done(pccb);
3083 	}
3084 	break;
3085 	case WRITE_BUFFER:
3086 	case READ_BUFFER: {
3087 		if (arcmsr_iop_message_xfer(acb, pccb)) {
3088 			pccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
3089 			pccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
3090 		}
3091 		xpt_done(pccb);
3092 	}
3093 	break;
3094 	default:
3095 		xpt_done(pccb);
3096 	}
3097 }
3098 /*
3099 *********************************************************************
3100 *********************************************************************
3101 */
3102 static void arcmsr_action(struct cam_sim *psim, union ccb *pccb)
3103 {
3104 	struct AdapterControlBlock *acb;
3105 
3106 	acb = (struct AdapterControlBlock *) cam_sim_softc(psim);
3107 	if(acb == NULL) {
3108 		pccb->ccb_h.status |= CAM_REQ_INVALID;
3109 		xpt_done(pccb);
3110 		return;
3111 	}
3112 	switch (pccb->ccb_h.func_code) {
3113 	case XPT_SCSI_IO: {
3114 			struct CommandControlBlock *srb;
3115 			int target = pccb->ccb_h.target_id;
3116 			int error;
3117 
3118 			if (pccb->ccb_h.flags & CAM_CDB_PHYS) {
3119 				pccb->ccb_h.status = CAM_REQ_INVALID;
3120 				xpt_done(pccb);
3121 				return;
3122 			}
3123 
3124 			if(target == 16) {
3125 				/* virtual device for iop message transfer */
3126 				arcmsr_handle_virtual_command(acb, pccb);
3127 				return;
3128 			}
3129 			if((srb = arcmsr_get_freesrb(acb)) == NULL) {
3130 				pccb->ccb_h.status |= CAM_RESRC_UNAVAIL;
3131 				xpt_done(pccb);
3132 				return;
3133 			}
3134 			pccb->ccb_h.arcmsr_ccbsrb_ptr = srb;
3135 			pccb->ccb_h.arcmsr_ccbacb_ptr = acb;
3136 			srb->pccb = pccb;
3137 			error =	bus_dmamap_load_ccb(acb->dm_segs_dmat
3138 				, srb->dm_segs_dmamap
3139 				, pccb
3140 				, arcmsr_execute_srb, srb, /*flags*/0);
3141 			if(error == EINPROGRESS) {
3142 				xpt_freeze_simq(acb->psim, 1);
3143 				pccb->ccb_h.status |= CAM_RELEASE_SIMQ;
3144 			}
3145 			break;
3146 		}
3147 	case XPT_PATH_INQ: {
3148 			struct ccb_pathinq *cpi = &pccb->cpi;
3149 
3150 			cpi->version_num = 1;
3151 			cpi->hba_inquiry = PI_SDTR_ABLE | PI_TAG_ABLE;
3152 			cpi->target_sprt = 0;
3153 			cpi->hba_misc = 0;
3154 			cpi->hba_eng_cnt = 0;
3155 			cpi->max_target = ARCMSR_MAX_TARGETID;        /* 0-16 */
3156 			cpi->max_lun = ARCMSR_MAX_TARGETLUN;	    /* 0-7 */
3157 			cpi->initiator_id = ARCMSR_SCSI_INITIATOR_ID; /* 255 */
3158 			cpi->bus_id = cam_sim_bus(psim);
3159 			strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
3160 			strlcpy(cpi->hba_vid, "ARCMSR", HBA_IDLEN);
3161 			strlcpy(cpi->dev_name, cam_sim_name(psim), DEV_IDLEN);
3162 			cpi->unit_number = cam_sim_unit(psim);
3163 		#ifdef	CAM_NEW_TRAN_CODE
3164 			if(acb->adapter_bus_speed == ACB_BUS_SPEED_12G)
3165 				cpi->base_transfer_speed = 1200000;
3166 			else if(acb->adapter_bus_speed == ACB_BUS_SPEED_6G)
3167 				cpi->base_transfer_speed = 600000;
3168 			else
3169 				cpi->base_transfer_speed = 300000;
3170 			if((acb->vendor_device_id == PCIDevVenIDARC1880) ||
3171 			   (acb->vendor_device_id == PCIDevVenIDARC1884) ||
3172 			   (acb->vendor_device_id == PCIDevVenIDARC1680) ||
3173 			   (acb->vendor_device_id == PCIDevVenIDARC1214))
3174 			{
3175 				cpi->transport = XPORT_SAS;
3176 				cpi->transport_version = 0;
3177 				cpi->protocol_version = SCSI_REV_SPC2;
3178 			}
3179 			else
3180 			{
3181 				cpi->transport = XPORT_SPI;
3182 				cpi->transport_version = 2;
3183 				cpi->protocol_version = SCSI_REV_2;
3184 			}
3185 			cpi->protocol = PROTO_SCSI;
3186 		#endif
3187 			cpi->ccb_h.status |= CAM_REQ_CMP;
3188 			xpt_done(pccb);
3189 			break;
3190 		}
3191 	case XPT_ABORT: {
3192 			union ccb *pabort_ccb;
3193 
3194 			pabort_ccb = pccb->cab.abort_ccb;
3195 			switch (pabort_ccb->ccb_h.func_code) {
3196 			case XPT_ACCEPT_TARGET_IO:
3197 			case XPT_CONT_TARGET_IO:
3198 				if(arcmsr_seek_cmd2abort(pabort_ccb)==TRUE) {
3199 					pabort_ccb->ccb_h.status |= CAM_REQ_ABORTED;
3200 					xpt_done(pabort_ccb);
3201 					pccb->ccb_h.status |= CAM_REQ_CMP;
3202 				} else {
3203 					xpt_print_path(pabort_ccb->ccb_h.path);
3204 					printf("Not found\n");
3205 					pccb->ccb_h.status |= CAM_PATH_INVALID;
3206 				}
3207 				break;
3208 			case XPT_SCSI_IO:
3209 				pccb->ccb_h.status |= CAM_UA_ABORT;
3210 				break;
3211 			default:
3212 				pccb->ccb_h.status |= CAM_REQ_INVALID;
3213 				break;
3214 			}
3215 			xpt_done(pccb);
3216 			break;
3217 		}
3218 	case XPT_RESET_BUS:
3219 	case XPT_RESET_DEV: {
3220 			u_int32_t	i;
3221 
3222 			arcmsr_bus_reset(acb);
3223 			for (i=0; i < 500; i++) {
3224 				DELAY(1000);
3225 			}
3226 			pccb->ccb_h.status |= CAM_REQ_CMP;
3227 			xpt_done(pccb);
3228 			break;
3229 		}
3230 	case XPT_TERM_IO: {
3231 			pccb->ccb_h.status |= CAM_REQ_INVALID;
3232 			xpt_done(pccb);
3233 			break;
3234 		}
3235 	case XPT_GET_TRAN_SETTINGS: {
3236 			struct ccb_trans_settings *cts;
3237 
3238 			if(pccb->ccb_h.target_id == 16) {
3239 				pccb->ccb_h.status |= CAM_FUNC_NOTAVAIL;
3240 				xpt_done(pccb);
3241 				break;
3242 			}
3243 			cts = &pccb->cts;
3244 		#ifdef	CAM_NEW_TRAN_CODE
3245 			{
3246 				struct ccb_trans_settings_scsi *scsi;
3247 				struct ccb_trans_settings_spi *spi;
3248 				struct ccb_trans_settings_sas *sas;
3249 
3250 				scsi = &cts->proto_specific.scsi;
3251 				scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3252 				scsi->valid = CTS_SCSI_VALID_TQ;
3253 				cts->protocol = PROTO_SCSI;
3254 
3255 				if((acb->vendor_device_id == PCIDevVenIDARC1880) ||
3256 				   (acb->vendor_device_id == PCIDevVenIDARC1884) ||
3257 				   (acb->vendor_device_id == PCIDevVenIDARC1680) ||
3258 				   (acb->vendor_device_id == PCIDevVenIDARC1214))
3259 				{
3260 					cts->protocol_version = SCSI_REV_SPC2;
3261 					cts->transport_version = 0;
3262 					cts->transport = XPORT_SAS;
3263 					sas = &cts->xport_specific.sas;
3264 					sas->valid = CTS_SAS_VALID_SPEED;
3265 					if (acb->adapter_bus_speed == ACB_BUS_SPEED_12G)
3266 						sas->bitrate = 1200000;
3267 					else if(acb->adapter_bus_speed == ACB_BUS_SPEED_6G)
3268 						sas->bitrate = 600000;
3269 					else if(acb->adapter_bus_speed == ACB_BUS_SPEED_3G)
3270 						sas->bitrate = 300000;
3271 				}
3272 				else
3273 				{
3274 					cts->protocol_version = SCSI_REV_2;
3275 					cts->transport_version = 2;
3276 					cts->transport = XPORT_SPI;
3277 					spi = &cts->xport_specific.spi;
3278 					spi->flags = CTS_SPI_FLAGS_DISC_ENB;
3279 					if (acb->adapter_bus_speed == ACB_BUS_SPEED_6G)
3280 						spi->sync_period = 1;
3281 					else
3282 						spi->sync_period = 2;
3283 					spi->sync_offset = 32;
3284 					spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3285 					spi->valid = CTS_SPI_VALID_DISC
3286 						| CTS_SPI_VALID_SYNC_RATE
3287 						| CTS_SPI_VALID_SYNC_OFFSET
3288 						| CTS_SPI_VALID_BUS_WIDTH;
3289 				}
3290 			}
3291 		#else
3292 			{
3293 				cts->flags = (CCB_TRANS_DISC_ENB | CCB_TRANS_TAG_ENB);
3294 				if (acb->adapter_bus_speed == ACB_BUS_SPEED_6G)
3295 					cts->sync_period = 1;
3296 				else
3297 					cts->sync_period = 2;
3298 				cts->sync_offset = 32;
3299 				cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3300 				cts->valid = CCB_TRANS_SYNC_RATE_VALID |
3301 				CCB_TRANS_SYNC_OFFSET_VALID |
3302 				CCB_TRANS_BUS_WIDTH_VALID |
3303 				CCB_TRANS_DISC_VALID |
3304 				CCB_TRANS_TQ_VALID;
3305 			}
3306 		#endif
3307 			pccb->ccb_h.status |= CAM_REQ_CMP;
3308 			xpt_done(pccb);
3309 			break;
3310 		}
3311 	case XPT_SET_TRAN_SETTINGS: {
3312 			pccb->ccb_h.status |= CAM_FUNC_NOTAVAIL;
3313 			xpt_done(pccb);
3314 			break;
3315 		}
3316 	case XPT_CALC_GEOMETRY:
3317 			if(pccb->ccb_h.target_id == 16) {
3318 				pccb->ccb_h.status |= CAM_FUNC_NOTAVAIL;
3319 				xpt_done(pccb);
3320 				break;
3321 			}
3322 #if __FreeBSD_version >= 500000
3323 			cam_calc_geometry(&pccb->ccg, 1);
3324 #else
3325 			{
3326 			struct ccb_calc_geometry *ccg;
3327 			u_int32_t size_mb;
3328 			u_int32_t secs_per_cylinder;
3329 
3330 			ccg = &pccb->ccg;
3331 			if (ccg->block_size == 0) {
3332 				pccb->ccb_h.status = CAM_REQ_INVALID;
3333 				xpt_done(pccb);
3334 				break;
3335 			}
3336 			if(((1024L * 1024L)/ccg->block_size) < 0) {
3337 				pccb->ccb_h.status = CAM_REQ_INVALID;
3338 				xpt_done(pccb);
3339 				break;
3340 			}
3341 			size_mb = ccg->volume_size/((1024L * 1024L)/ccg->block_size);
3342 			if(size_mb > 1024 ) {
3343 				ccg->heads = 255;
3344 				ccg->secs_per_track = 63;
3345 			} else {
3346 				ccg->heads = 64;
3347 				ccg->secs_per_track = 32;
3348 			}
3349 			secs_per_cylinder = ccg->heads * ccg->secs_per_track;
3350 			ccg->cylinders = ccg->volume_size / secs_per_cylinder;
3351 			pccb->ccb_h.status |= CAM_REQ_CMP;
3352 			}
3353 #endif
3354 			xpt_done(pccb);
3355 			break;
3356 	default:
3357 		pccb->ccb_h.status |= CAM_REQ_INVALID;
3358 		xpt_done(pccb);
3359 		break;
3360 	}
3361 }
3362 /*
3363 **********************************************************************
3364 **********************************************************************
3365 */
3366 static void arcmsr_start_hba_bgrb(struct AdapterControlBlock *acb)
3367 {
3368 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3369 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_START_BGRB);
3370 	if(!arcmsr_hba_wait_msgint_ready(acb)) {
3371 		printf("arcmsr%d: wait 'start adapter background rebulid' timeout \n", acb->pci_unit);
3372 	}
3373 }
3374 /*
3375 **********************************************************************
3376 **********************************************************************
3377 */
3378 static void arcmsr_start_hbb_bgrb(struct AdapterControlBlock *acb)
3379 {
3380 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
3381 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3382 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_START_BGRB);
3383 	if(!arcmsr_hbb_wait_msgint_ready(acb)) {
3384 		printf( "arcmsr%d: wait 'start adapter background rebulid' timeout \n", acb->pci_unit);
3385 	}
3386 }
3387 /*
3388 **********************************************************************
3389 **********************************************************************
3390 */
3391 static void arcmsr_start_hbc_bgrb(struct AdapterControlBlock *acb)
3392 {
3393 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3394 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_START_BGRB);
3395 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
3396 	if(!arcmsr_hbc_wait_msgint_ready(acb)) {
3397 		printf("arcmsr%d: wait 'start adapter background rebulid' timeout \n", acb->pci_unit);
3398 	}
3399 }
3400 /*
3401 **********************************************************************
3402 **********************************************************************
3403 */
3404 static void arcmsr_start_hbd_bgrb(struct AdapterControlBlock *acb)
3405 {
3406 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3407 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_START_BGRB);
3408 	if(!arcmsr_hbd_wait_msgint_ready(acb)) {
3409 		printf("arcmsr%d: wait 'start adapter background rebulid' timeout \n", acb->pci_unit);
3410 	}
3411 }
3412 /*
3413 **********************************************************************
3414 **********************************************************************
3415 */
3416 static void arcmsr_start_hbe_bgrb(struct AdapterControlBlock *acb)
3417 {
3418 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3419 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_START_BGRB);
3420 	acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
3421 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
3422 	if(!arcmsr_hbe_wait_msgint_ready(acb)) {
3423 		printf("arcmsr%d: wait 'start adapter background rebulid' timeout \n", acb->pci_unit);
3424 	}
3425 }
3426 /*
3427 **********************************************************************
3428 **********************************************************************
3429 */
3430 static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb)
3431 {
3432 	switch (acb->adapter_type) {
3433 	case ACB_ADAPTER_TYPE_A:
3434 		arcmsr_start_hba_bgrb(acb);
3435 		break;
3436 	case ACB_ADAPTER_TYPE_B:
3437 		arcmsr_start_hbb_bgrb(acb);
3438 		break;
3439 	case ACB_ADAPTER_TYPE_C:
3440 		arcmsr_start_hbc_bgrb(acb);
3441 		break;
3442 	case ACB_ADAPTER_TYPE_D:
3443 		arcmsr_start_hbd_bgrb(acb);
3444 		break;
3445 	case ACB_ADAPTER_TYPE_E:
3446 		arcmsr_start_hbe_bgrb(acb);
3447 		break;
3448 	}
3449 }
3450 /*
3451 **********************************************************************
3452 **
3453 **********************************************************************
3454 */
3455 static void arcmsr_polling_hba_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
3456 {
3457 	struct CommandControlBlock *srb;
3458 	u_int32_t flag_srb, outbound_intstatus, poll_srb_done=0, poll_count=0;
3459 	u_int16_t	error;
3460 
3461 polling_ccb_retry:
3462 	poll_count++;
3463 	outbound_intstatus=CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intstatus) & acb->outbound_int_enable;
3464 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, outbound_intstatus);	/*clear interrupt*/
3465 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
3466 	while(1) {
3467 		if((flag_srb = CHIP_REG_READ32(HBA_MessageUnit,
3468 			0, outbound_queueport)) == 0xFFFFFFFF) {
3469 			if(poll_srb_done) {
3470 				break;/*chip FIFO no ccb for completion already*/
3471 			} else {
3472 				UDELAY(25000);
3473 				if ((poll_count > 100) && (poll_srb != NULL)) {
3474 					break;
3475 				}
3476 				goto polling_ccb_retry;
3477 			}
3478 		}
3479 		/* check if command done with no error*/
3480 		srb = (struct CommandControlBlock *)
3481 			(acb->vir2phy_offset+(flag_srb << 5));/*frame must be 32 bytes aligned*/
3482 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0)?TRUE:FALSE;
3483 		poll_srb_done = (srb == poll_srb) ? 1:0;
3484 		if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
3485 			if(srb->srb_state == ARCMSR_SRB_ABORTED) {
3486 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p'"
3487 					"poll command abort successfully \n"
3488 					, acb->pci_unit
3489 					, srb->pccb->ccb_h.target_id
3490 					, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
3491 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
3492 				arcmsr_srb_complete(srb, 1);
3493 				continue;
3494 			}
3495 			printf("arcmsr%d: polling get an illegal srb command done srb='%p'"
3496 				"srboutstandingcount=%d \n"
3497 				, acb->pci_unit
3498 				, srb, acb->srboutstandingcount);
3499 			continue;
3500 		}
3501 		arcmsr_report_srb_state(acb, srb, error);
3502 	}	/*drain reply FIFO*/
3503 }
3504 /*
3505 **********************************************************************
3506 **
3507 **********************************************************************
3508 */
3509 static void arcmsr_polling_hbb_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
3510 {
3511 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
3512 	struct CommandControlBlock *srb;
3513 	u_int32_t flag_srb, poll_srb_done=0, poll_count=0;
3514 	int index;
3515 	u_int16_t	error;
3516 
3517 polling_ccb_retry:
3518 	poll_count++;
3519 	WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_DOORBELL_INT_CLEAR_PATTERN); /* clear doorbell interrupt */
3520 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
3521 	while(1) {
3522 		index = phbbmu->doneq_index;
3523 		if((flag_srb = phbbmu->done_qbuffer[index]) == 0) {
3524 			if(poll_srb_done) {
3525 				break;/*chip FIFO no ccb for completion already*/
3526 			} else {
3527 				UDELAY(25000);
3528 				if ((poll_count > 100) && (poll_srb != NULL)) {
3529 					break;
3530 				}
3531 				goto polling_ccb_retry;
3532 			}
3533 		}
3534 		phbbmu->done_qbuffer[index] = 0;
3535 		index++;
3536 		index %= ARCMSR_MAX_HBB_POSTQUEUE;     /*if last index number set it to 0 */
3537 		phbbmu->doneq_index = index;
3538 		/* check if command done with no error*/
3539 		srb = (struct CommandControlBlock *)
3540 			(acb->vir2phy_offset+(flag_srb << 5));/*frame must be 32 bytes aligned*/
3541 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0)?TRUE:FALSE;
3542 		poll_srb_done = (srb == poll_srb) ? 1:0;
3543 		if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
3544 			if(srb->srb_state == ARCMSR_SRB_ABORTED) {
3545 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p'"
3546 					"poll command abort successfully \n"
3547 					, acb->pci_unit
3548 					, srb->pccb->ccb_h.target_id
3549 					, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
3550 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
3551 				arcmsr_srb_complete(srb, 1);
3552 				continue;
3553 			}
3554 			printf("arcmsr%d: polling get an illegal srb command done srb='%p'"
3555 				"srboutstandingcount=%d \n"
3556 				, acb->pci_unit
3557 				, srb, acb->srboutstandingcount);
3558 			continue;
3559 		}
3560 		arcmsr_report_srb_state(acb, srb, error);
3561 	}	/*drain reply FIFO*/
3562 }
3563 /*
3564 **********************************************************************
3565 **
3566 **********************************************************************
3567 */
3568 static void arcmsr_polling_hbc_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
3569 {
3570 	struct CommandControlBlock *srb;
3571 	u_int32_t flag_srb, poll_srb_done=0, poll_count=0;
3572 	u_int16_t	error;
3573 
3574 polling_ccb_retry:
3575 	poll_count++;
3576 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
3577 	while(1) {
3578 		if(!(CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR)) {
3579 			if(poll_srb_done) {
3580 				break;/*chip FIFO no ccb for completion already*/
3581 			} else {
3582 				UDELAY(25000);
3583 				if ((poll_count > 100) && (poll_srb != NULL)) {
3584 					break;
3585 				}
3586 				if (acb->srboutstandingcount == 0) {
3587 				    break;
3588 				}
3589 				goto polling_ccb_retry;
3590 			}
3591 		}
3592 		flag_srb = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_queueport_low);
3593 		/* check if command done with no error*/
3594 		srb = (struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb & 0xFFFFFFE0));/*frame must be 32 bytes aligned*/
3595 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1)?TRUE:FALSE;
3596 		if (poll_srb != NULL)
3597 			poll_srb_done = (srb == poll_srb) ? 1:0;
3598 		if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
3599 			if(srb->srb_state == ARCMSR_SRB_ABORTED) {
3600 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p'poll command abort successfully \n"
3601 						, acb->pci_unit, srb->pccb->ccb_h.target_id, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
3602 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
3603 				arcmsr_srb_complete(srb, 1);
3604 				continue;
3605 			}
3606 			printf("arcmsr%d: polling get an illegal srb command done srb='%p'srboutstandingcount=%d \n"
3607 					, acb->pci_unit, srb, acb->srboutstandingcount);
3608 			continue;
3609 		}
3610 		arcmsr_report_srb_state(acb, srb, error);
3611 	}	/*drain reply FIFO*/
3612 }
3613 /*
3614 **********************************************************************
3615 **
3616 **********************************************************************
3617 */
3618 static void arcmsr_polling_hbd_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
3619 {
3620 	struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
3621 	struct CommandControlBlock *srb;
3622 	u_int32_t flag_srb, poll_srb_done=0, poll_count=0;
3623 	u_int32_t outbound_write_pointer;
3624 	u_int16_t	error, doneq_index;
3625 
3626 polling_ccb_retry:
3627 	poll_count++;
3628 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
3629 	while(1) {
3630 		outbound_write_pointer = phbdmu->done_qbuffer[0].addressLow;
3631 		doneq_index = phbdmu->doneq_index;
3632 		if ((outbound_write_pointer & 0xFF) == (doneq_index & 0xFF)) {
3633 			if(poll_srb_done) {
3634 				break;/*chip FIFO no ccb for completion already*/
3635 			} else {
3636 				UDELAY(25000);
3637 				if ((poll_count > 100) && (poll_srb != NULL)) {
3638 					break;
3639 				}
3640 				if (acb->srboutstandingcount == 0) {
3641 					break;
3642 				}
3643 				goto polling_ccb_retry;
3644 			}
3645 		}
3646 		doneq_index = arcmsr_get_doneq_index(phbdmu);
3647 		flag_srb = phbdmu->done_qbuffer[(doneq_index & 0xFF)+1].addressLow;
3648 		/* check if command done with no error*/
3649 		srb = (struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb & 0xFFFFFFE0));/*frame must be 32 bytes aligned*/
3650 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1) ? TRUE : FALSE;
3651 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, outboundlist_read_pointer, doneq_index);
3652 		if (poll_srb != NULL)
3653 			poll_srb_done = (srb == poll_srb) ? 1:0;
3654 		if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
3655 			if(srb->srb_state == ARCMSR_SRB_ABORTED) {
3656 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p'poll command abort successfully \n"
3657 						, acb->pci_unit, srb->pccb->ccb_h.target_id, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
3658 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
3659 				arcmsr_srb_complete(srb, 1);
3660 				continue;
3661 			}
3662 			printf("arcmsr%d: polling get an illegal srb command done srb='%p'srboutstandingcount=%d \n"
3663 					, acb->pci_unit, srb, acb->srboutstandingcount);
3664 			continue;
3665 		}
3666 		arcmsr_report_srb_state(acb, srb, error);
3667 	}	/*drain reply FIFO*/
3668 }
3669 /*
3670 **********************************************************************
3671 **
3672 **********************************************************************
3673 */
3674 static void arcmsr_polling_hbe_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
3675 {
3676 	struct CommandControlBlock *srb;
3677 	u_int32_t poll_srb_done=0, poll_count=0, doneq_index;
3678 	u_int16_t	error, cmdSMID;
3679 
3680 polling_ccb_retry:
3681 	poll_count++;
3682 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
3683 	while(1) {
3684 		doneq_index = acb->doneq_index;
3685 		if((CHIP_REG_READ32(HBE_MessageUnit, 0, reply_post_producer_index) & 0xFFFF) == doneq_index) {
3686 			if(poll_srb_done) {
3687 				break;/*chip FIFO no ccb for completion already*/
3688 			} else {
3689 				UDELAY(25000);
3690 			    if ((poll_count > 100) && (poll_srb != NULL)) {
3691 					break;
3692 				}
3693 			    if (acb->srboutstandingcount == 0) {
3694 				    break;
3695 			    }
3696 				goto polling_ccb_retry;
3697 			}
3698 		}
3699 		cmdSMID = acb->pCompletionQ[doneq_index].cmdSMID;
3700 		doneq_index++;
3701 		if (doneq_index >= acb->completionQ_entry)
3702 			doneq_index = 0;
3703 		acb->doneq_index = doneq_index;
3704 		srb = acb->psrb_pool[cmdSMID];
3705 		error = (acb->pCompletionQ[doneq_index].cmdFlag & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1) ? TRUE : FALSE;
3706 		if (poll_srb != NULL)
3707 			poll_srb_done = (srb == poll_srb) ? 1:0;
3708 		if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
3709 			if(srb->srb_state == ARCMSR_SRB_ABORTED) {
3710 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p'poll command abort successfully \n"
3711 						, acb->pci_unit, srb->pccb->ccb_h.target_id, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
3712 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
3713 				arcmsr_srb_complete(srb, 1);
3714 				continue;
3715 			}
3716 			printf("arcmsr%d: polling get an illegal srb command done srb='%p'srboutstandingcount=%d \n"
3717 					, acb->pci_unit, srb, acb->srboutstandingcount);
3718 			continue;
3719 		}
3720 		arcmsr_report_srb_state(acb, srb, error);
3721 	}	/*drain reply FIFO*/
3722 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, reply_post_producer_index, doneq_index);
3723 }
3724 /*
3725 **********************************************************************
3726 **********************************************************************
3727 */
3728 static void arcmsr_polling_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
3729 {
3730 	switch (acb->adapter_type) {
3731 	case ACB_ADAPTER_TYPE_A: {
3732 			arcmsr_polling_hba_srbdone(acb, poll_srb);
3733 		}
3734 		break;
3735 	case ACB_ADAPTER_TYPE_B: {
3736 			arcmsr_polling_hbb_srbdone(acb, poll_srb);
3737 		}
3738 		break;
3739 	case ACB_ADAPTER_TYPE_C: {
3740 			arcmsr_polling_hbc_srbdone(acb, poll_srb);
3741 		}
3742 		break;
3743 	case ACB_ADAPTER_TYPE_D: {
3744 			arcmsr_polling_hbd_srbdone(acb, poll_srb);
3745 		}
3746 		break;
3747 	case ACB_ADAPTER_TYPE_E: {
3748 			arcmsr_polling_hbe_srbdone(acb, poll_srb);
3749 		}
3750 		break;
3751 	}
3752 }
3753 /*
3754 **********************************************************************
3755 **********************************************************************
3756 */
3757 static void arcmsr_get_hba_config(struct AdapterControlBlock *acb)
3758 {
3759 	char *acb_firm_model = acb->firm_model;
3760 	char *acb_firm_version = acb->firm_version;
3761 	char *acb_device_map = acb->device_map;
3762 	size_t iop_firm_model = offsetof(struct HBA_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);	/*firm_model,15,60-67*/
3763 	size_t iop_firm_version = offsetof(struct HBA_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]);	/*firm_version,17,68-83*/
3764 	size_t iop_device_map = offsetof(struct HBA_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3765 	int i;
3766 
3767 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
3768 	if(!arcmsr_hba_wait_msgint_ready(acb)) {
3769 		printf("arcmsr%d: wait 'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3770 	}
3771 	i = 0;
3772 	while(i < 8) {
3773 		*acb_firm_model = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_model+i);
3774 		/* 8 bytes firm_model, 15, 60-67*/
3775 		acb_firm_model++;
3776 		i++;
3777 	}
3778 	i=0;
3779 	while(i < 16) {
3780 		*acb_firm_version = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_version+i);
3781 		/* 16 bytes firm_version, 17, 68-83*/
3782 		acb_firm_version++;
3783 		i++;
3784 	}
3785 	i=0;
3786 	while(i < 16) {
3787 		*acb_device_map = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_device_map+i);
3788 		acb_device_map++;
3789 		i++;
3790 	}
3791 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3792 	acb->firm_request_len = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[1]);   /*firm_request_len, 1, 04-07*/
3793 	acb->firm_numbers_queue = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[2]); /*firm_numbers_queue, 2, 08-11*/
3794 	acb->firm_sdram_size = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[3]);    /*firm_sdram_size, 3, 12-15*/
3795 	acb->firm_ide_channels = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[4]);  /*firm_ide_channels, 4, 16-19*/
3796 	acb->firm_cfg_version = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
3797 	if(acb->firm_numbers_queue > ARCMSR_MAX_OUTSTANDING_CMD)
3798 		acb->maxOutstanding = ARCMSR_MAX_OUTSTANDING_CMD - 1;
3799 	else
3800 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
3801 }
3802 /*
3803 **********************************************************************
3804 **********************************************************************
3805 */
3806 static void arcmsr_get_hbb_config(struct AdapterControlBlock *acb)
3807 {
3808 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
3809 	char *acb_firm_model = acb->firm_model;
3810 	char *acb_firm_version = acb->firm_version;
3811 	char *acb_device_map = acb->device_map;
3812 	size_t iop_firm_model = offsetof(struct HBB_RWBUFFER, msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);	/*firm_model,15,60-67*/
3813 	size_t iop_firm_version = offsetof(struct HBB_RWBUFFER, msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]);	/*firm_version,17,68-83*/
3814 	size_t iop_device_map = offsetof(struct HBB_RWBUFFER, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3815 	int i;
3816 
3817 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_GET_CONFIG);
3818 	if(!arcmsr_hbb_wait_msgint_ready(acb)) {
3819 		printf( "arcmsr%d: wait" "'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3820 	}
3821 	i = 0;
3822 	while(i < 8) {
3823 		*acb_firm_model = bus_space_read_1(acb->btag[1], acb->bhandle[1], iop_firm_model+i);
3824 		/* 8 bytes firm_model, 15, 60-67*/
3825 		acb_firm_model++;
3826 		i++;
3827 	}
3828 	i = 0;
3829 	while(i < 16) {
3830 		*acb_firm_version = bus_space_read_1(acb->btag[1], acb->bhandle[1], iop_firm_version+i);
3831 		/* 16 bytes firm_version, 17, 68-83*/
3832 		acb_firm_version++;
3833 		i++;
3834 	}
3835 	i = 0;
3836 	while(i < 16) {
3837 		*acb_device_map = bus_space_read_1(acb->btag[1], acb->bhandle[1], iop_device_map+i);
3838 		acb_device_map++;
3839 		i++;
3840 	}
3841 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3842 	acb->firm_request_len = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[1]);   /*firm_request_len, 1, 04-07*/
3843 	acb->firm_numbers_queue = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[2]); /*firm_numbers_queue, 2, 08-11*/
3844 	acb->firm_sdram_size = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[3]);    /*firm_sdram_size, 3, 12-15*/
3845 	acb->firm_ide_channels = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[4]);  /*firm_ide_channels, 4, 16-19*/
3846 	acb->firm_cfg_version = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
3847 	if(acb->firm_numbers_queue > ARCMSR_MAX_HBB_POSTQUEUE)
3848 		acb->maxOutstanding = ARCMSR_MAX_HBB_POSTQUEUE - 1;
3849 	else
3850 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
3851 }
3852 /*
3853 **********************************************************************
3854 **********************************************************************
3855 */
3856 static void arcmsr_get_hbc_config(struct AdapterControlBlock *acb)
3857 {
3858 	char *acb_firm_model = acb->firm_model;
3859 	char *acb_firm_version = acb->firm_version;
3860 	char *acb_device_map = acb->device_map;
3861 	size_t iop_firm_model = offsetof(struct HBC_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);   /*firm_model,15,60-67*/
3862 	size_t iop_firm_version = offsetof(struct HBC_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]); /*firm_version,17,68-83*/
3863 	size_t iop_device_map = offsetof(struct HBC_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3864 	int i;
3865 
3866 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
3867 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
3868 	if(!arcmsr_hbc_wait_msgint_ready(acb)) {
3869 		printf("arcmsr%d: wait 'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3870 	}
3871 	i = 0;
3872 	while(i < 8) {
3873 		*acb_firm_model = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_model+i);
3874 		/* 8 bytes firm_model, 15, 60-67*/
3875 		acb_firm_model++;
3876 		i++;
3877 	}
3878 	i = 0;
3879 	while(i < 16) {
3880 		*acb_firm_version = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_version+i);
3881 		/* 16 bytes firm_version, 17, 68-83*/
3882 		acb_firm_version++;
3883 		i++;
3884 	}
3885 	i = 0;
3886 	while(i < 16) {
3887 		*acb_device_map = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_device_map+i);
3888 		acb_device_map++;
3889 		i++;
3890 	}
3891 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3892 	acb->firm_request_len	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[1]);	/*firm_request_len,   1, 04-07*/
3893 	acb->firm_numbers_queue	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[2]);	/*firm_numbers_queue, 2, 08-11*/
3894 	acb->firm_sdram_size	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[3]);	/*firm_sdram_size,    3, 12-15*/
3895 	acb->firm_ide_channels	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[4]);	/*firm_ide_channels,  4, 16-19*/
3896 	acb->firm_cfg_version	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
3897 	if(acb->firm_numbers_queue > ARCMSR_MAX_OUTSTANDING_CMD)
3898 		acb->maxOutstanding = ARCMSR_MAX_OUTSTANDING_CMD - 1;
3899 	else
3900 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
3901 }
3902 /*
3903 **********************************************************************
3904 **********************************************************************
3905 */
3906 static void arcmsr_get_hbd_config(struct AdapterControlBlock *acb)
3907 {
3908 	char *acb_firm_model = acb->firm_model;
3909 	char *acb_firm_version = acb->firm_version;
3910 	char *acb_device_map = acb->device_map;
3911 	size_t iop_firm_model = offsetof(struct HBD_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);   /*firm_model,15,60-67*/
3912 	size_t iop_firm_version = offsetof(struct HBD_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]); /*firm_version,17,68-83*/
3913 	size_t iop_device_map = offsetof(struct HBD_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3914 	int i;
3915 
3916 	if(CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE)
3917 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE_CLEAR);
3918 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
3919 	if(!arcmsr_hbd_wait_msgint_ready(acb)) {
3920 		printf("arcmsr%d: wait 'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3921 	}
3922 	i = 0;
3923 	while(i < 8) {
3924 		*acb_firm_model = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_model+i);
3925 		/* 8 bytes firm_model, 15, 60-67*/
3926 		acb_firm_model++;
3927 		i++;
3928 	}
3929 	i = 0;
3930 	while(i < 16) {
3931 		*acb_firm_version = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_version+i);
3932 		/* 16 bytes firm_version, 17, 68-83*/
3933 		acb_firm_version++;
3934 		i++;
3935 	}
3936 	i = 0;
3937 	while(i < 16) {
3938 		*acb_device_map = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_device_map+i);
3939 		acb_device_map++;
3940 		i++;
3941 	}
3942 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3943 	acb->firm_request_len	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[1]);	/*firm_request_len,   1, 04-07*/
3944 	acb->firm_numbers_queue	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[2]);	/*firm_numbers_queue, 2, 08-11*/
3945 	acb->firm_sdram_size	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[3]);	/*firm_sdram_size,    3, 12-15*/
3946 	acb->firm_ide_channels	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[4]);	/*firm_ide_channels,  4, 16-19*/
3947 	acb->firm_cfg_version	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
3948 	if(acb->firm_numbers_queue > ARCMSR_MAX_HBD_POSTQUEUE)
3949 		acb->maxOutstanding = ARCMSR_MAX_HBD_POSTQUEUE - 1;
3950 	else
3951 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
3952 }
3953 /*
3954 **********************************************************************
3955 **********************************************************************
3956 */
3957 static void arcmsr_get_hbe_config(struct AdapterControlBlock *acb)
3958 {
3959 	char *acb_firm_model = acb->firm_model;
3960 	char *acb_firm_version = acb->firm_version;
3961 	char *acb_device_map = acb->device_map;
3962 	size_t iop_firm_model = offsetof(struct HBE_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);   /*firm_model,15,60-67*/
3963 	size_t iop_firm_version = offsetof(struct HBE_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]); /*firm_version,17,68-83*/
3964 	size_t iop_device_map = offsetof(struct HBE_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3965 	int i;
3966 
3967 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
3968 	acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
3969 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
3970 	if(!arcmsr_hbe_wait_msgint_ready(acb)) {
3971 		printf("arcmsr%d: wait 'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3972 	}
3973 
3974 	i = 0;
3975 	while(i < 8) {
3976 		*acb_firm_model = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_model+i);
3977 		/* 8 bytes firm_model, 15, 60-67*/
3978 		acb_firm_model++;
3979 		i++;
3980 	}
3981 	i = 0;
3982 	while(i < 16) {
3983 		*acb_firm_version = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_version+i);
3984 		/* 16 bytes firm_version, 17, 68-83*/
3985 		acb_firm_version++;
3986 		i++;
3987 	}
3988 	i = 0;
3989 	while(i < 16) {
3990 		*acb_device_map = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_device_map+i);
3991 		acb_device_map++;
3992 		i++;
3993 	}
3994 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3995 	acb->firm_request_len	= CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[1]);	/*firm_request_len,   1, 04-07*/
3996 	acb->firm_numbers_queue	= CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[2]);	/*firm_numbers_queue, 2, 08-11*/
3997 	acb->firm_sdram_size	= CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[3]);	/*firm_sdram_size,    3, 12-15*/
3998 	acb->firm_ide_channels	= CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[4]);	/*firm_ide_channels,  4, 16-19*/
3999 	acb->firm_cfg_version	= CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
4000 	if(acb->firm_numbers_queue > ARCMSR_MAX_OUTSTANDING_CMD)
4001 		acb->maxOutstanding = ARCMSR_MAX_OUTSTANDING_CMD - 1;
4002 	else
4003 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
4004 }
4005 /*
4006 **********************************************************************
4007 **********************************************************************
4008 */
4009 static void arcmsr_get_firmware_spec(struct AdapterControlBlock *acb)
4010 {
4011 	switch (acb->adapter_type) {
4012 	case ACB_ADAPTER_TYPE_A: {
4013 			arcmsr_get_hba_config(acb);
4014 		}
4015 		break;
4016 	case ACB_ADAPTER_TYPE_B: {
4017 			arcmsr_get_hbb_config(acb);
4018 		}
4019 		break;
4020 	case ACB_ADAPTER_TYPE_C: {
4021 			arcmsr_get_hbc_config(acb);
4022 		}
4023 		break;
4024 	case ACB_ADAPTER_TYPE_D: {
4025 			arcmsr_get_hbd_config(acb);
4026 		}
4027 		break;
4028 	case ACB_ADAPTER_TYPE_E: {
4029 			arcmsr_get_hbe_config(acb);
4030 		}
4031 		break;
4032 	}
4033 }
4034 /*
4035 **********************************************************************
4036 **********************************************************************
4037 */
4038 static void arcmsr_wait_firmware_ready( struct AdapterControlBlock *acb)
4039 {
4040 	int	timeout=0;
4041 
4042 	switch (acb->adapter_type) {
4043 	case ACB_ADAPTER_TYPE_A: {
4044 			while ((CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_msgaddr1) & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0)
4045 			{
4046 				if (timeout++ > 2000) /* (2000*15)/1000 = 30 sec */
4047 				{
4048 					printf( "arcmsr%d:timed out waiting for firmware \n", acb->pci_unit);
4049 					return;
4050 				}
4051 				UDELAY(15000); /* wait 15 milli-seconds */
4052 			}
4053 		}
4054 		break;
4055 	case ACB_ADAPTER_TYPE_B: {
4056 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
4057 			while ((READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell) & ARCMSR_MESSAGE_FIRMWARE_OK) == 0)
4058 			{
4059 				if (timeout++ > 2000) /* (2000*15)/1000 = 30 sec */
4060 				{
4061 					printf( "arcmsr%d: timed out waiting for firmware \n", acb->pci_unit);
4062 					return;
4063 				}
4064 				UDELAY(15000); /* wait 15 milli-seconds */
4065 			}
4066 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_END_OF_INTERRUPT);
4067 		}
4068 		break;
4069 	case ACB_ADAPTER_TYPE_C: {
4070 			while ((CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_msgaddr1) & ARCMSR_HBCMU_MESSAGE_FIRMWARE_OK) == 0)
4071 			{
4072 				if (timeout++ > 2000) /* (2000*15)/1000 = 30 sec */
4073 				{
4074 					printf( "arcmsr%d:timed out waiting for firmware ready\n", acb->pci_unit);
4075 					return;
4076 				}
4077 				UDELAY(15000); /* wait 15 milli-seconds */
4078 			}
4079 		}
4080 		break;
4081 	case ACB_ADAPTER_TYPE_D: {
4082 			while ((CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_msgaddr1) & ARCMSR_HBDMU_MESSAGE_FIRMWARE_OK) == 0)
4083 			{
4084 				if (timeout++ > 2000) /* (2000*15)/1000 = 30 sec */
4085 				{
4086 					printf( "arcmsr%d:timed out waiting for firmware ready\n", acb->pci_unit);
4087 					return;
4088 				}
4089 				UDELAY(15000); /* wait 15 milli-seconds */
4090 			}
4091 		}
4092 		break;
4093 	case ACB_ADAPTER_TYPE_E: {
4094 			while ((CHIP_REG_READ32(HBE_MessageUnit, 0, outbound_msgaddr1) & ARCMSR_HBEMU_MESSAGE_FIRMWARE_OK) == 0)
4095 			{
4096 				if (timeout++ > 4000) /* (4000*15)/1000 = 60 sec */
4097 				{
4098 					printf( "arcmsr%d:timed out waiting for firmware ready\n", acb->pci_unit);
4099 					return;
4100 				}
4101 				UDELAY(15000); /* wait 15 milli-seconds */
4102 			}
4103 		}
4104 		break;
4105 	}
4106 }
4107 /*
4108 **********************************************************************
4109 **********************************************************************
4110 */
4111 static void arcmsr_clear_doorbell_queue_buffer( struct AdapterControlBlock *acb)
4112 {
4113 	u_int32_t outbound_doorbell;
4114 
4115 	switch (acb->adapter_type) {
4116 	case ACB_ADAPTER_TYPE_A: {
4117 			/* empty doorbell Qbuffer if door bell ringed */
4118 			outbound_doorbell = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_doorbell);
4119 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_doorbell, outbound_doorbell);	/*clear doorbell interrupt */
4120 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_READ_OK);
4121 		}
4122 		break;
4123 	case ACB_ADAPTER_TYPE_B: {
4124 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
4125 			WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_DOORBELL_INT_CLEAR_PATTERN);/*clear interrupt and message state*/
4126 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_DATA_READ_OK);
4127 			/* let IOP know data has been read */
4128 		}
4129 		break;
4130 	case ACB_ADAPTER_TYPE_C: {
4131 			/* empty doorbell Qbuffer if door bell ringed */
4132 			outbound_doorbell = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_doorbell);
4133 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, outbound_doorbell_clear, outbound_doorbell);	/*clear doorbell interrupt */
4134 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK);
4135 			CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_doorbell_clear); /* Dummy read to force pci flush */
4136 			CHIP_REG_READ32(HBC_MessageUnit, 0, inbound_doorbell); /* Dummy read to force pci flush */
4137 		}
4138 		break;
4139 	case ACB_ADAPTER_TYPE_D: {
4140 			/* empty doorbell Qbuffer if door bell ringed */
4141 			outbound_doorbell = CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell);
4142 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, outbound_doorbell);	/*clear doorbell interrupt */
4143 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_doorbell, ARCMSR_HBDMU_DRV2IOP_DATA_OUT_READ);
4144 		}
4145 		break;
4146 	case ACB_ADAPTER_TYPE_E: {
4147 			/* empty doorbell Qbuffer if door bell ringed */
4148 			acb->in_doorbell = CHIP_REG_READ32(HBE_MessageUnit, 0, iobound_doorbell);
4149 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_status, 0);	/*clear doorbell interrupt */
4150 			acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_READ_OK;
4151 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
4152 		}
4153 		break;
4154 	}
4155 }
4156 /*
4157 ************************************************************************
4158 ************************************************************************
4159 */
4160 static u_int32_t arcmsr_iop_confirm(struct AdapterControlBlock *acb)
4161 {
4162 	unsigned long srb_phyaddr;
4163 	u_int32_t srb_phyaddr_hi32;
4164 	u_int32_t srb_phyaddr_lo32;
4165 
4166 	/*
4167 	********************************************************************
4168 	** here we need to tell iop 331 our freesrb.HighPart
4169 	** if freesrb.HighPart is not zero
4170 	********************************************************************
4171 	*/
4172 	srb_phyaddr = (unsigned long) acb->srb_phyaddr.phyaddr;
4173 	srb_phyaddr_hi32 = acb->srb_phyaddr.B.phyadd_high;
4174 	srb_phyaddr_lo32 = acb->srb_phyaddr.B.phyadd_low;
4175 	switch (acb->adapter_type) {
4176 	case ACB_ADAPTER_TYPE_A: {
4177 			if(srb_phyaddr_hi32 != 0) {
4178 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG);
4179 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, msgcode_rwbuffer[1], srb_phyaddr_hi32);
4180 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_SET_CONFIG);
4181 				if(!arcmsr_hba_wait_msgint_ready(acb)) {
4182 					printf( "arcmsr%d: 'set srb high part physical address' timeout \n", acb->pci_unit);
4183 					return FALSE;
4184 				}
4185 			}
4186 		}
4187 		break;
4188 		/*
4189 		***********************************************************************
4190 		**    if adapter type B, set window of "post command Q"
4191 		***********************************************************************
4192 		*/
4193 	case ACB_ADAPTER_TYPE_B: {
4194 			u_int32_t post_queue_phyaddr;
4195 			struct HBB_MessageUnit *phbbmu;
4196 
4197 			phbbmu = (struct HBB_MessageUnit *)acb->pmu;
4198 			phbbmu->postq_index = 0;
4199 			phbbmu->doneq_index = 0;
4200 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_SET_POST_WINDOW);
4201 			if(!arcmsr_hbb_wait_msgint_ready(acb)) {
4202 				printf( "arcmsr%d: 'set window of post command Q' timeout\n", acb->pci_unit);
4203 				return FALSE;
4204 			}
4205 			post_queue_phyaddr = srb_phyaddr + ARCMSR_SRBS_POOL_SIZE
4206 								+ offsetof(struct HBB_MessageUnit, post_qbuffer);
4207 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG); /* driver "set config" signature */
4208 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[1], srb_phyaddr_hi32); /* normal should be zero */
4209 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[2], post_queue_phyaddr); /* postQ size (256+8)*4 */
4210 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[3], post_queue_phyaddr+1056); /* doneQ size (256+8)*4 */
4211 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[4], 1056); /* srb maxQ size must be --> [(256+8)*4] */
4212 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_SET_CONFIG);
4213 			if(!arcmsr_hbb_wait_msgint_ready(acb)) {
4214 				printf( "arcmsr%d: 'set command Q window' timeout \n", acb->pci_unit);
4215 				return FALSE;
4216 			}
4217 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_START_DRIVER_MODE);
4218 			if(!arcmsr_hbb_wait_msgint_ready(acb)) {
4219 				printf( "arcmsr%d: 'start diver mode' timeout \n", acb->pci_unit);
4220 				return FALSE;
4221 			}
4222 		}
4223 		break;
4224 	case ACB_ADAPTER_TYPE_C: {
4225 			if(srb_phyaddr_hi32 != 0) {
4226 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG);
4227 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, msgcode_rwbuffer[1], srb_phyaddr_hi32);
4228 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_SET_CONFIG);
4229 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell,ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
4230 				if(!arcmsr_hbc_wait_msgint_ready(acb)) {
4231 					printf( "arcmsr%d: 'set srb high part physical address' timeout \n", acb->pci_unit);
4232 					return FALSE;
4233 				}
4234 			}
4235 		}
4236 		break;
4237 	case ACB_ADAPTER_TYPE_D: {
4238 			u_int32_t post_queue_phyaddr, done_queue_phyaddr;
4239 			struct HBD_MessageUnit0 *phbdmu;
4240 
4241 			phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
4242 			phbdmu->postq_index = 0;
4243 			phbdmu->doneq_index = 0x40FF;
4244 			post_queue_phyaddr = srb_phyaddr_lo32 + ARCMSR_SRBS_POOL_SIZE
4245 								+ offsetof(struct HBD_MessageUnit0, post_qbuffer);
4246 			done_queue_phyaddr = srb_phyaddr_lo32 + ARCMSR_SRBS_POOL_SIZE
4247 								+ offsetof(struct HBD_MessageUnit0, done_qbuffer);
4248 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG); /* driver "set config" signature */
4249 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[1], srb_phyaddr_hi32);
4250 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[2], post_queue_phyaddr); /* postQ base */
4251 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[3], done_queue_phyaddr); /* doneQ base */
4252 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[4], 0x100);
4253 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_SET_CONFIG);
4254 			if(!arcmsr_hbd_wait_msgint_ready(acb)) {
4255 				printf( "arcmsr%d: 'set srb high part physical address' timeout \n", acb->pci_unit);
4256 				return FALSE;
4257 			}
4258 		}
4259 		break;
4260 	case ACB_ADAPTER_TYPE_E: {
4261 			u_int32_t cdb_phyaddr_lo32;
4262 			cdb_phyaddr_lo32 = srb_phyaddr_lo32 + offsetof(struct CommandControlBlock, arcmsr_cdb);
4263 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG);
4264 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[1], ARCMSR_SIGNATURE_1884);
4265 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[2], cdb_phyaddr_lo32);
4266 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[3], srb_phyaddr_hi32);
4267 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[4], SRB_SIZE);
4268 			cdb_phyaddr_lo32 = srb_phyaddr_lo32 + ARCMSR_SRBS_POOL_SIZE;
4269 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[5], cdb_phyaddr_lo32);
4270 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[6], srb_phyaddr_hi32);
4271 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[7], COMPLETION_Q_POOL_SIZE);
4272 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_SET_CONFIG);
4273 			acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
4274 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
4275 			if(!arcmsr_hbe_wait_msgint_ready(acb)) {
4276 				printf( "arcmsr%d: 'set srb high part physical address' timeout \n", acb->pci_unit);
4277 				return FALSE;
4278 			}
4279 		}
4280 		break;
4281 	}
4282 	return (TRUE);
4283 }
4284 /*
4285 ************************************************************************
4286 ************************************************************************
4287 */
4288 static void arcmsr_enable_eoi_mode(struct AdapterControlBlock *acb)
4289 {
4290 	if (acb->adapter_type == ACB_ADAPTER_TYPE_B)
4291 	{
4292 		struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
4293 		WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_ACTIVE_EOI_MODE);
4294 		if(!arcmsr_hbb_wait_msgint_ready(acb)) {
4295 			printf( "arcmsr%d: 'iop enable eoi mode' timeout \n", acb->pci_unit);
4296 			return;
4297 		}
4298 	}
4299 }
4300 /*
4301 **********************************************************************
4302 **********************************************************************
4303 */
4304 static void arcmsr_iop_init(struct AdapterControlBlock *acb)
4305 {
4306 	u_int32_t intmask_org;
4307 
4308 	/* disable all outbound interrupt */
4309 	intmask_org = arcmsr_disable_allintr(acb);
4310 	arcmsr_wait_firmware_ready(acb);
4311 	arcmsr_iop_confirm(acb);
4312 	arcmsr_get_firmware_spec(acb);
4313 	/*start background rebuild*/
4314 	arcmsr_start_adapter_bgrb(acb);
4315 	/* empty doorbell Qbuffer if door bell ringed */
4316 	arcmsr_clear_doorbell_queue_buffer(acb);
4317 	arcmsr_enable_eoi_mode(acb);
4318 	/* enable outbound Post Queue, outbound doorbell Interrupt */
4319 	arcmsr_enable_allintr(acb, intmask_org);
4320 	acb->acb_flags |= ACB_F_IOP_INITED;
4321 }
4322 /*
4323 **********************************************************************
4324 **********************************************************************
4325 */
4326 static void arcmsr_map_free_srb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
4327 {
4328 	struct AdapterControlBlock *acb = arg;
4329 	struct CommandControlBlock *srb_tmp;
4330 	u_int32_t i;
4331 	unsigned long srb_phyaddr = (unsigned long)segs->ds_addr;
4332 
4333 	acb->srb_phyaddr.phyaddr = srb_phyaddr;
4334 	srb_tmp = (struct CommandControlBlock *)acb->uncacheptr;
4335 	for(i=0; i < ARCMSR_MAX_FREESRB_NUM; i++) {
4336 		if(bus_dmamap_create(acb->dm_segs_dmat,
4337 			 /*flags*/0, &srb_tmp->dm_segs_dmamap) != 0) {
4338 			acb->acb_flags |= ACB_F_MAPFREESRB_FAILD;
4339 			printf("arcmsr%d:"
4340 			" srb dmamap bus_dmamap_create error\n", acb->pci_unit);
4341 			return;
4342 		}
4343 		if((acb->adapter_type == ACB_ADAPTER_TYPE_C) || (acb->adapter_type == ACB_ADAPTER_TYPE_D)
4344 			 || (acb->adapter_type == ACB_ADAPTER_TYPE_E))
4345 		{
4346 			srb_tmp->cdb_phyaddr_low = srb_phyaddr;
4347 			srb_tmp->cdb_phyaddr_high = (u_int32_t)((srb_phyaddr >> 16) >> 16);
4348 		}
4349 		else
4350 			srb_tmp->cdb_phyaddr_low = srb_phyaddr >> 5;
4351 		srb_tmp->acb = acb;
4352 		srb_tmp->smid = i << 16;
4353 		acb->srbworkingQ[i] = acb->psrb_pool[i] = srb_tmp;
4354 		srb_phyaddr = srb_phyaddr + SRB_SIZE;
4355 		srb_tmp = (struct CommandControlBlock *)((unsigned long)srb_tmp + SRB_SIZE);
4356 	}
4357 	if (acb->adapter_type == ACB_ADAPTER_TYPE_E)
4358 		acb->pCompletionQ = (pCompletion_Q)srb_tmp;
4359 	acb->vir2phy_offset = (unsigned long)srb_tmp - (unsigned long)srb_phyaddr;
4360 }
4361 /*
4362 ************************************************************************
4363 ************************************************************************
4364 */
4365 static void arcmsr_free_resource(struct AdapterControlBlock *acb)
4366 {
4367 	/* remove the control device */
4368 	if(acb->ioctl_dev != NULL) {
4369 		destroy_dev(acb->ioctl_dev);
4370 	}
4371 	bus_dmamap_unload(acb->srb_dmat, acb->srb_dmamap);
4372 	bus_dmamap_destroy(acb->srb_dmat, acb->srb_dmamap);
4373 	bus_dma_tag_destroy(acb->srb_dmat);
4374 	bus_dma_tag_destroy(acb->dm_segs_dmat);
4375 	bus_dma_tag_destroy(acb->parent_dmat);
4376 }
4377 /*
4378 ************************************************************************
4379 ************************************************************************
4380 */
4381 static void arcmsr_mutex_init(struct AdapterControlBlock *acb)
4382 {
4383 	ARCMSR_LOCK_INIT(&acb->isr_lock, "arcmsr isr lock");
4384 	ARCMSR_LOCK_INIT(&acb->srb_lock, "arcmsr srb lock");
4385 	ARCMSR_LOCK_INIT(&acb->postDone_lock, "arcmsr postQ lock");
4386 	ARCMSR_LOCK_INIT(&acb->qbuffer_lock, "arcmsr RW buffer lock");
4387 }
4388 /*
4389 ************************************************************************
4390 ************************************************************************
4391 */
4392 static void arcmsr_mutex_destroy(struct AdapterControlBlock *acb)
4393 {
4394 	ARCMSR_LOCK_DESTROY(&acb->qbuffer_lock);
4395 	ARCMSR_LOCK_DESTROY(&acb->postDone_lock);
4396 	ARCMSR_LOCK_DESTROY(&acb->srb_lock);
4397 	ARCMSR_LOCK_DESTROY(&acb->isr_lock);
4398 }
4399 /*
4400 ************************************************************************
4401 ************************************************************************
4402 */
4403 static u_int32_t arcmsr_initialize(device_t dev)
4404 {
4405 	struct AdapterControlBlock *acb = device_get_softc(dev);
4406 	u_int16_t pci_command;
4407 	int i, j,max_coherent_size;
4408 	u_int32_t vendor_dev_id;
4409 
4410 	vendor_dev_id = pci_get_devid(dev);
4411 	acb->vendor_device_id = vendor_dev_id;
4412 	acb->sub_device_id = pci_read_config(dev, PCIR_SUBDEV_0, 2);
4413 	switch (vendor_dev_id) {
4414 	case PCIDevVenIDARC1880:
4415 	case PCIDevVenIDARC1882:
4416 	case PCIDevVenIDARC1213:
4417 	case PCIDevVenIDARC1223: {
4418 			acb->adapter_type = ACB_ADAPTER_TYPE_C;
4419 			if ((acb->sub_device_id == ARECA_SUB_DEV_ID_1883) ||
4420 			    (acb->sub_device_id == ARECA_SUB_DEV_ID_1216) ||
4421 			    (acb->sub_device_id == ARECA_SUB_DEV_ID_1226))
4422 				acb->adapter_bus_speed = ACB_BUS_SPEED_12G;
4423 			else
4424 				acb->adapter_bus_speed = ACB_BUS_SPEED_6G;
4425 			max_coherent_size = ARCMSR_SRBS_POOL_SIZE;
4426 		}
4427 		break;
4428 	case PCIDevVenIDARC1884:
4429 		acb->adapter_type = ACB_ADAPTER_TYPE_E;
4430 		acb->adapter_bus_speed = ACB_BUS_SPEED_12G;
4431 		max_coherent_size = ARCMSR_SRBS_POOL_SIZE + COMPLETION_Q_POOL_SIZE;
4432 		acb->completionQ_entry = COMPLETION_Q_POOL_SIZE / sizeof(struct deliver_completeQ);
4433 		break;
4434 	case PCIDevVenIDARC1214: {
4435 			acb->adapter_type = ACB_ADAPTER_TYPE_D;
4436 			acb->adapter_bus_speed = ACB_BUS_SPEED_6G;
4437 			max_coherent_size = ARCMSR_SRBS_POOL_SIZE + (sizeof(struct HBD_MessageUnit0));
4438 		}
4439 		break;
4440 	case PCIDevVenIDARC1200:
4441 	case PCIDevVenIDARC1201: {
4442 			acb->adapter_type = ACB_ADAPTER_TYPE_B;
4443 			acb->adapter_bus_speed = ACB_BUS_SPEED_3G;
4444 			max_coherent_size = ARCMSR_SRBS_POOL_SIZE + (sizeof(struct HBB_MessageUnit));
4445 		}
4446 		break;
4447 	case PCIDevVenIDARC1203: {
4448 			acb->adapter_type = ACB_ADAPTER_TYPE_B;
4449 			acb->adapter_bus_speed = ACB_BUS_SPEED_6G;
4450 			max_coherent_size = ARCMSR_SRBS_POOL_SIZE + (sizeof(struct HBB_MessageUnit));
4451 		}
4452 		break;
4453 	case PCIDevVenIDARC1110:
4454 	case PCIDevVenIDARC1120:
4455 	case PCIDevVenIDARC1130:
4456 	case PCIDevVenIDARC1160:
4457 	case PCIDevVenIDARC1170:
4458 	case PCIDevVenIDARC1210:
4459 	case PCIDevVenIDARC1220:
4460 	case PCIDevVenIDARC1230:
4461 	case PCIDevVenIDARC1231:
4462 	case PCIDevVenIDARC1260:
4463 	case PCIDevVenIDARC1261:
4464 	case PCIDevVenIDARC1270:
4465 	case PCIDevVenIDARC1280:
4466 	case PCIDevVenIDARC1212:
4467 	case PCIDevVenIDARC1222:
4468 	case PCIDevVenIDARC1380:
4469 	case PCIDevVenIDARC1381:
4470 	case PCIDevVenIDARC1680:
4471 	case PCIDevVenIDARC1681: {
4472 			acb->adapter_type = ACB_ADAPTER_TYPE_A;
4473 			acb->adapter_bus_speed = ACB_BUS_SPEED_3G;
4474 			max_coherent_size = ARCMSR_SRBS_POOL_SIZE;
4475 		}
4476 		break;
4477 	default: {
4478 			printf("arcmsr%d:"
4479 			" unknown RAID adapter type \n", device_get_unit(dev));
4480 			return ENOMEM;
4481 		}
4482 	}
4483 #if __FreeBSD_version >= 700000
4484 	if(bus_dma_tag_create(  /*PCI parent*/		bus_get_dma_tag(dev),
4485 #else
4486 	if(bus_dma_tag_create(  /*PCI parent*/		NULL,
4487 #endif
4488 				/*alignemnt*/		1,
4489 				/*boundary*/		0,
4490 				/*lowaddr*/		BUS_SPACE_MAXADDR,
4491 				/*highaddr*/		BUS_SPACE_MAXADDR,
4492 				/*filter*/		NULL,
4493 				/*filterarg*/		NULL,
4494 				/*maxsize*/		BUS_SPACE_MAXSIZE_32BIT,
4495 				/*nsegments*/		BUS_SPACE_UNRESTRICTED,
4496 				/*maxsegsz*/		BUS_SPACE_MAXSIZE_32BIT,
4497 				/*flags*/		0,
4498 #if __FreeBSD_version >= 501102
4499 				/*lockfunc*/		NULL,
4500 				/*lockarg*/		NULL,
4501 #endif
4502 							&acb->parent_dmat) != 0)
4503 	{
4504 		printf("arcmsr%d: parent_dmat bus_dma_tag_create failure!\n", device_get_unit(dev));
4505 		return ENOMEM;
4506 	}
4507 
4508 	/* Create a single tag describing a region large enough to hold all of the s/g lists we will need. */
4509 	if(bus_dma_tag_create(  /*parent_dmat*/		acb->parent_dmat,
4510 				/*alignment*/		1,
4511 				/*boundary*/		0,
4512 #ifdef PAE
4513 				/*lowaddr*/		BUS_SPACE_MAXADDR_32BIT,
4514 #else
4515 				/*lowaddr*/		BUS_SPACE_MAXADDR,
4516 #endif
4517 				/*highaddr*/		BUS_SPACE_MAXADDR,
4518 				/*filter*/		NULL,
4519 				/*filterarg*/		NULL,
4520 				/*maxsize*/		ARCMSR_MAX_SG_ENTRIES * PAGE_SIZE * ARCMSR_MAX_FREESRB_NUM,
4521 				/*nsegments*/		ARCMSR_MAX_SG_ENTRIES,
4522 				/*maxsegsz*/		BUS_SPACE_MAXSIZE_32BIT,
4523 				/*flags*/		0,
4524 #if __FreeBSD_version >= 501102
4525 				/*lockfunc*/		busdma_lock_mutex,
4526 				/*lockarg*/		&acb->isr_lock,
4527 #endif
4528 							&acb->dm_segs_dmat) != 0)
4529 	{
4530 		bus_dma_tag_destroy(acb->parent_dmat);
4531 		printf("arcmsr%d: dm_segs_dmat bus_dma_tag_create failure!\n", device_get_unit(dev));
4532 		return ENOMEM;
4533 	}
4534 
4535 	/* DMA tag for our srb structures.... Allocate the freesrb memory */
4536 	if(bus_dma_tag_create(  /*parent_dmat*/		acb->parent_dmat,
4537 				/*alignment*/		0x20,
4538 				/*boundary*/		0,
4539 				/*lowaddr*/		BUS_SPACE_MAXADDR_32BIT,
4540 				/*highaddr*/		BUS_SPACE_MAXADDR,
4541 				/*filter*/		NULL,
4542 				/*filterarg*/		NULL,
4543 				/*maxsize*/		max_coherent_size,
4544 				/*nsegments*/		1,
4545 				/*maxsegsz*/		BUS_SPACE_MAXSIZE_32BIT,
4546 				/*flags*/		0,
4547 #if __FreeBSD_version >= 501102
4548 				/*lockfunc*/		NULL,
4549 				/*lockarg*/		NULL,
4550 #endif
4551 							&acb->srb_dmat) != 0)
4552 	{
4553 		bus_dma_tag_destroy(acb->dm_segs_dmat);
4554 		bus_dma_tag_destroy(acb->parent_dmat);
4555 		printf("arcmsr%d: srb_dmat bus_dma_tag_create failure!\n", device_get_unit(dev));
4556 		return ENXIO;
4557 	}
4558 	/* Allocation for our srbs */
4559 	if(bus_dmamem_alloc(acb->srb_dmat, (void **)&acb->uncacheptr, BUS_DMA_WAITOK | BUS_DMA_COHERENT | BUS_DMA_ZERO, &acb->srb_dmamap) != 0) {
4560 		bus_dma_tag_destroy(acb->srb_dmat);
4561 		bus_dma_tag_destroy(acb->dm_segs_dmat);
4562 		bus_dma_tag_destroy(acb->parent_dmat);
4563 		printf("arcmsr%d: srb_dmat bus_dmamem_alloc failure!\n", device_get_unit(dev));
4564 		return ENXIO;
4565 	}
4566 	/* And permanently map them */
4567 	if(bus_dmamap_load(acb->srb_dmat, acb->srb_dmamap, acb->uncacheptr, max_coherent_size, arcmsr_map_free_srb, acb, /*flags*/0)) {
4568 		bus_dma_tag_destroy(acb->srb_dmat);
4569 		bus_dma_tag_destroy(acb->dm_segs_dmat);
4570 		bus_dma_tag_destroy(acb->parent_dmat);
4571 		printf("arcmsr%d: srb_dmat bus_dmamap_load failure!\n", device_get_unit(dev));
4572 		return ENXIO;
4573 	}
4574 	pci_command = pci_read_config(dev, PCIR_COMMAND, 2);
4575 	pci_command |= PCIM_CMD_BUSMASTEREN;
4576 	pci_command |= PCIM_CMD_PERRESPEN;
4577 	pci_command |= PCIM_CMD_MWRICEN;
4578 	/* Enable Busmaster */
4579 	pci_write_config(dev, PCIR_COMMAND, pci_command, 2);
4580 	switch(acb->adapter_type) {
4581 	case ACB_ADAPTER_TYPE_A: {
4582 		u_int32_t rid0 = PCIR_BAR(0);
4583 		vm_offset_t	mem_base0;
4584 
4585 		acb->sys_res_arcmsr[0] = bus_alloc_resource_any(dev,SYS_RES_MEMORY, &rid0, RF_ACTIVE);
4586 		if(acb->sys_res_arcmsr[0] == NULL) {
4587 			arcmsr_free_resource(acb);
4588 			printf("arcmsr%d: bus_alloc_resource failure!\n", device_get_unit(dev));
4589 			return ENOMEM;
4590 		}
4591 		if(rman_get_start(acb->sys_res_arcmsr[0]) <= 0) {
4592 			arcmsr_free_resource(acb);
4593 			printf("arcmsr%d: rman_get_start failure!\n", device_get_unit(dev));
4594 			return ENXIO;
4595 		}
4596 		mem_base0 = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[0]);
4597 		if(mem_base0 == 0) {
4598 			arcmsr_free_resource(acb);
4599 			printf("arcmsr%d: rman_get_virtual failure!\n", device_get_unit(dev));
4600 			return ENXIO;
4601 		}
4602 		acb->btag[0] = rman_get_bustag(acb->sys_res_arcmsr[0]);
4603 		acb->bhandle[0] = rman_get_bushandle(acb->sys_res_arcmsr[0]);
4604 		acb->pmu = (struct MessageUnit_UNION *)mem_base0;
4605 		acb->rid[0] = rid0;
4606 		}
4607 		break;
4608 	case ACB_ADAPTER_TYPE_B: {
4609 		struct HBB_MessageUnit *phbbmu;
4610 		struct CommandControlBlock *freesrb;
4611 		u_int32_t rid[]={ PCIR_BAR(0), PCIR_BAR(2) };
4612 		vm_offset_t	mem_base[]={0,0};
4613 		for(i=0; i < 2; i++) {
4614 			acb->sys_res_arcmsr[i] = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid[i], RF_ACTIVE);
4615 			if(acb->sys_res_arcmsr[i] == NULL) {
4616 				arcmsr_free_resource(acb);
4617 				printf("arcmsr%d: bus_alloc_resource %d failure!\n", device_get_unit(dev), i);
4618 				return ENOMEM;
4619 			}
4620 			if(rman_get_start(acb->sys_res_arcmsr[i]) <= 0) {
4621 				arcmsr_free_resource(acb);
4622 				printf("arcmsr%d: rman_get_start %d failure!\n", device_get_unit(dev), i);
4623 				return ENXIO;
4624 			}
4625 			mem_base[i] = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[i]);
4626 			if(mem_base[i] == 0) {
4627 				arcmsr_free_resource(acb);
4628 				printf("arcmsr%d: rman_get_virtual %d failure!\n", device_get_unit(dev), i);
4629 				return ENXIO;
4630 			}
4631 			acb->btag[i] = rman_get_bustag(acb->sys_res_arcmsr[i]);
4632 			acb->bhandle[i] = rman_get_bushandle(acb->sys_res_arcmsr[i]);
4633 		}
4634 		freesrb = (struct CommandControlBlock *)acb->uncacheptr;
4635 		acb->pmu = (struct MessageUnit_UNION *)((unsigned long)freesrb+ARCMSR_SRBS_POOL_SIZE);
4636 		phbbmu = (struct HBB_MessageUnit *)acb->pmu;
4637 		phbbmu->hbb_doorbell = (struct HBB_DOORBELL *)mem_base[0];
4638 		phbbmu->hbb_rwbuffer = (struct HBB_RWBUFFER *)mem_base[1];
4639 		if (vendor_dev_id == PCIDevVenIDARC1203) {
4640 			phbbmu->drv2iop_doorbell = offsetof(struct HBB_DOORBELL_1203, drv2iop_doorbell);
4641 			phbbmu->drv2iop_doorbell_mask = offsetof(struct HBB_DOORBELL_1203, drv2iop_doorbell_mask);
4642 			phbbmu->iop2drv_doorbell = offsetof(struct HBB_DOORBELL_1203, iop2drv_doorbell);
4643 			phbbmu->iop2drv_doorbell_mask = offsetof(struct HBB_DOORBELL_1203, iop2drv_doorbell_mask);
4644 		} else {
4645 			phbbmu->drv2iop_doorbell = offsetof(struct HBB_DOORBELL, drv2iop_doorbell);
4646 			phbbmu->drv2iop_doorbell_mask = offsetof(struct HBB_DOORBELL, drv2iop_doorbell_mask);
4647 			phbbmu->iop2drv_doorbell = offsetof(struct HBB_DOORBELL, iop2drv_doorbell);
4648 			phbbmu->iop2drv_doorbell_mask = offsetof(struct HBB_DOORBELL, iop2drv_doorbell_mask);
4649 		}
4650 		acb->rid[0] = rid[0];
4651 		acb->rid[1] = rid[1];
4652 		}
4653 		break;
4654 	case ACB_ADAPTER_TYPE_C: {
4655 		u_int32_t rid0 = PCIR_BAR(1);
4656 		vm_offset_t	mem_base0;
4657 
4658 		acb->sys_res_arcmsr[0] = bus_alloc_resource_any(dev,SYS_RES_MEMORY, &rid0, RF_ACTIVE);
4659 		if(acb->sys_res_arcmsr[0] == NULL) {
4660 			arcmsr_free_resource(acb);
4661 			printf("arcmsr%d: bus_alloc_resource failure!\n", device_get_unit(dev));
4662 			return ENOMEM;
4663 		}
4664 		if(rman_get_start(acb->sys_res_arcmsr[0]) <= 0) {
4665 			arcmsr_free_resource(acb);
4666 			printf("arcmsr%d: rman_get_start failure!\n", device_get_unit(dev));
4667 			return ENXIO;
4668 		}
4669 		mem_base0 = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[0]);
4670 		if(mem_base0 == 0) {
4671 			arcmsr_free_resource(acb);
4672 			printf("arcmsr%d: rman_get_virtual failure!\n", device_get_unit(dev));
4673 			return ENXIO;
4674 		}
4675 		acb->btag[0] = rman_get_bustag(acb->sys_res_arcmsr[0]);
4676 		acb->bhandle[0] = rman_get_bushandle(acb->sys_res_arcmsr[0]);
4677 		acb->pmu = (struct MessageUnit_UNION *)mem_base0;
4678 		acb->rid[0] = rid0;
4679 		}
4680 		break;
4681 	case ACB_ADAPTER_TYPE_D: {
4682 		struct HBD_MessageUnit0 *phbdmu;
4683 		u_int32_t rid0 = PCIR_BAR(0);
4684 		vm_offset_t	mem_base0;
4685 
4686 		acb->sys_res_arcmsr[0] = bus_alloc_resource_any(dev,SYS_RES_MEMORY, &rid0, RF_ACTIVE);
4687 		if(acb->sys_res_arcmsr[0] == NULL) {
4688 			arcmsr_free_resource(acb);
4689 			printf("arcmsr%d: bus_alloc_resource failure!\n", device_get_unit(dev));
4690 			return ENOMEM;
4691 		}
4692 		if(rman_get_start(acb->sys_res_arcmsr[0]) <= 0) {
4693 			arcmsr_free_resource(acb);
4694 			printf("arcmsr%d: rman_get_start failure!\n", device_get_unit(dev));
4695 			return ENXIO;
4696 		}
4697 		mem_base0 = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[0]);
4698 		if(mem_base0 == 0) {
4699 			arcmsr_free_resource(acb);
4700 			printf("arcmsr%d: rman_get_virtual failure!\n", device_get_unit(dev));
4701 			return ENXIO;
4702 		}
4703 		acb->btag[0] = rman_get_bustag(acb->sys_res_arcmsr[0]);
4704 		acb->bhandle[0] = rman_get_bushandle(acb->sys_res_arcmsr[0]);
4705 		acb->pmu = (struct MessageUnit_UNION *)((unsigned long)acb->uncacheptr+ARCMSR_SRBS_POOL_SIZE);
4706 		phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
4707 		phbdmu->phbdmu = (struct HBD_MessageUnit *)mem_base0;
4708 		acb->rid[0] = rid0;
4709 		}
4710 		break;
4711 	case ACB_ADAPTER_TYPE_E: {
4712 		u_int32_t rid0 = PCIR_BAR(1);
4713 		vm_offset_t	mem_base0;
4714 
4715 		acb->sys_res_arcmsr[0] = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid0, RF_ACTIVE);
4716 		if(acb->sys_res_arcmsr[0] == NULL) {
4717 			arcmsr_free_resource(acb);
4718 			printf("arcmsr%d: bus_alloc_resource failure!\n", device_get_unit(dev));
4719 			return ENOMEM;
4720 		}
4721 		if(rman_get_start(acb->sys_res_arcmsr[0]) <= 0) {
4722 			arcmsr_free_resource(acb);
4723 			printf("arcmsr%d: rman_get_start failure!\n", device_get_unit(dev));
4724 			return ENXIO;
4725 		}
4726 		mem_base0 = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[0]);
4727 		if(mem_base0 == 0) {
4728 			arcmsr_free_resource(acb);
4729 			printf("arcmsr%d: rman_get_virtual failure!\n", device_get_unit(dev));
4730 			return ENXIO;
4731 		}
4732 		acb->btag[0] = rman_get_bustag(acb->sys_res_arcmsr[0]);
4733 		acb->bhandle[0] = rman_get_bushandle(acb->sys_res_arcmsr[0]);
4734 		acb->pmu = (struct MessageUnit_UNION *)mem_base0;
4735 		acb->doneq_index = 0;
4736 		acb->in_doorbell = 0;
4737 		acb->out_doorbell = 0;
4738 		acb->rid[0] = rid0;
4739 		CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_status, 0); /*clear interrupt*/
4740 		CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, ARCMSR_HBEMU_DOORBELL_SYNC); /* synchronize doorbell to 0 */
4741 		}
4742 		break;
4743 	}
4744 	if(acb->acb_flags & ACB_F_MAPFREESRB_FAILD) {
4745 		arcmsr_free_resource(acb);
4746 		printf("arcmsr%d: map free srb failure!\n", device_get_unit(dev));
4747 		return ENXIO;
4748 	}
4749 	acb->acb_flags  |= (ACB_F_MESSAGE_WQBUFFER_CLEARED|ACB_F_MESSAGE_RQBUFFER_CLEARED|ACB_F_MESSAGE_WQBUFFER_READ);
4750 	acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER;
4751 	/*
4752 	********************************************************************
4753 	** init raid volume state
4754 	********************************************************************
4755 	*/
4756 	for(i=0; i < ARCMSR_MAX_TARGETID; i++) {
4757 		for(j=0; j < ARCMSR_MAX_TARGETLUN; j++) {
4758 			acb->devstate[i][j] = ARECA_RAID_GONE;
4759 		}
4760 	}
4761 	arcmsr_iop_init(acb);
4762 	return(0);
4763 }
4764 
4765 static int arcmsr_setup_msix(struct AdapterControlBlock *acb)
4766 {
4767 	int i;
4768 
4769 	for (i = 0; i < acb->msix_vectors; i++) {
4770 		acb->irq_id[i] = 1 + i;
4771 		acb->irqres[i] = bus_alloc_resource_any(acb->pci_dev,
4772 		    SYS_RES_IRQ, &acb->irq_id[i], RF_ACTIVE);
4773 		if (acb->irqres[i] == NULL) {
4774 			printf("arcmsr: Can't allocate MSI-X resource\n");
4775 			goto irq_alloc_failed;
4776 		}
4777 		if (bus_setup_intr(acb->pci_dev, acb->irqres[i],
4778 		    INTR_MPSAFE | INTR_TYPE_CAM, NULL, arcmsr_intr_handler,
4779 		    acb, &acb->ih[i])) {
4780 			printf("arcmsr: Cannot set up MSI-X interrupt handler\n");
4781 			goto irq_alloc_failed;
4782 		}
4783 	}
4784 	printf("arcmsr: MSI-X INT enabled\n");
4785 	acb->acb_flags |= ACB_F_MSIX_ENABLED;
4786 	return TRUE;
4787 
4788 irq_alloc_failed:
4789 	arcmsr_teardown_intr(acb->pci_dev, acb);
4790 	return FALSE;
4791 }
4792 
4793 /*
4794 ************************************************************************
4795 ************************************************************************
4796 */
4797 static int arcmsr_attach(device_t dev)
4798 {
4799 	struct AdapterControlBlock *acb=(struct AdapterControlBlock *)device_get_softc(dev);
4800 	u_int32_t unit=device_get_unit(dev);
4801 	struct ccb_setasync csa;
4802 	struct cam_devq	*devq;	/* Device Queue to use for this SIM */
4803 	struct resource	*irqres;
4804 
4805 	if(acb == NULL) {
4806 		printf("arcmsr%d: cannot allocate softc\n", unit);
4807 		return (ENOMEM);
4808 	}
4809 	arcmsr_mutex_init(acb);
4810 	acb->pci_dev = dev;
4811 	acb->pci_unit = unit;
4812 	if(arcmsr_initialize(dev)) {
4813 		printf("arcmsr%d: initialize failure!\n", unit);
4814 		goto initialize_failed;
4815 	}
4816 	/* After setting up the adapter, map our interrupt */
4817 	acb->msix_vectors = ARCMSR_NUM_MSIX_VECTORS;
4818 	if (pci_alloc_msix(dev, &acb->msix_vectors) == 0) {
4819 		if (arcmsr_setup_msix(acb) == TRUE)
4820 			goto irqx;
4821 	}
4822 	acb->irq_id[0] = 0;
4823 	irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ, &acb->irq_id[0], RF_SHAREABLE | RF_ACTIVE);
4824 	if(irqres == NULL ||
4825 #if __FreeBSD_version >= 700025
4826 		bus_setup_intr(dev, irqres, INTR_TYPE_CAM|INTR_ENTROPY|INTR_MPSAFE, NULL, arcmsr_intr_handler, acb, &acb->ih[0])) {
4827 #else
4828 		bus_setup_intr(dev, irqres, INTR_TYPE_CAM|INTR_ENTROPY|INTR_MPSAFE, arcmsr_intr_handler, acb, &acb->ih[0])) {
4829 #endif
4830 		printf("arcmsr%d: unable to register interrupt handler!\n", unit);
4831 		goto setup_intr_failed;
4832 	}
4833 	acb->irqres[0] = irqres;
4834 irqx:
4835 	/*
4836 	 * Now let the CAM generic SCSI layer find the SCSI devices on
4837 	 * the bus *  start queue to reset to the idle loop. *
4838 	 * Create device queue of SIM(s) *  (MAX_START_JOB - 1) :
4839 	 * max_sim_transactions
4840 	*/
4841 	devq = cam_simq_alloc(acb->maxOutstanding);
4842 	if(devq == NULL) {
4843 		printf("arcmsr%d: cam_simq_alloc failure!\n", unit);
4844 		goto simq_alloc_failed;
4845 	}
4846 #if __FreeBSD_version >= 700025
4847 	acb->psim = cam_sim_alloc(arcmsr_action, arcmsr_poll, "arcmsr", acb, unit, &acb->isr_lock, 1, ARCMSR_MAX_OUTSTANDING_CMD, devq);
4848 #else
4849 	acb->psim = cam_sim_alloc(arcmsr_action, arcmsr_poll, "arcmsr", acb, unit, 1, ARCMSR_MAX_OUTSTANDING_CMD, devq);
4850 #endif
4851 	if(acb->psim == NULL) {
4852 		printf("arcmsr%d: cam_sim_alloc failure!\n", unit);
4853 		goto sim_alloc_failed;
4854 	}
4855 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
4856 #if __FreeBSD_version >= 700044
4857 	if(xpt_bus_register(acb->psim, dev, 0) != CAM_SUCCESS) {
4858 #else
4859 	if(xpt_bus_register(acb->psim, 0) != CAM_SUCCESS) {
4860 #endif
4861 		printf("arcmsr%d: xpt_bus_register failure!\n", unit);
4862 		goto xpt_bus_failed;
4863 	}
4864 	if(xpt_create_path(&acb->ppath, /* periph */ NULL, cam_sim_path(acb->psim), CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
4865 		printf("arcmsr%d: xpt_create_path failure!\n", unit);
4866 		goto xpt_path_failed;
4867 	}
4868 	/*
4869 	****************************************************
4870 	*/
4871 	xpt_setup_ccb(&csa.ccb_h, acb->ppath, /*priority*/5);
4872 	csa.ccb_h.func_code = XPT_SASYNC_CB;
4873 	csa.event_enable = AC_FOUND_DEVICE|AC_LOST_DEVICE;
4874 	csa.callback = arcmsr_async;
4875 	csa.callback_arg = acb->psim;
4876 	xpt_action((union ccb *)&csa);
4877 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
4878 	/* Create the control device.  */
4879 	acb->ioctl_dev = make_dev(&arcmsr_cdevsw, unit, UID_ROOT, GID_WHEEL /* GID_OPERATOR */, S_IRUSR | S_IWUSR, "arcmsr%d", unit);
4880 
4881 #if __FreeBSD_version < 503000
4882 	acb->ioctl_dev->si_drv1 = acb;
4883 #endif
4884 #if __FreeBSD_version > 500005
4885 	(void)make_dev_alias(acb->ioctl_dev, "arc%d", unit);
4886 #endif
4887 	arcmsr_callout_init(&acb->devmap_callout);
4888 	callout_reset(&acb->devmap_callout, 60 * hz, arcmsr_polling_devmap, acb);
4889 	return (0);
4890 xpt_path_failed:
4891 	xpt_bus_deregister(cam_sim_path(acb->psim));
4892 xpt_bus_failed:
4893 	cam_sim_free(acb->psim, /* free_simq */ TRUE);
4894 sim_alloc_failed:
4895 	cam_simq_free(devq);
4896 simq_alloc_failed:
4897 	arcmsr_teardown_intr(dev, acb);
4898 setup_intr_failed:
4899 	arcmsr_free_resource(acb);
4900 initialize_failed:
4901 	arcmsr_mutex_destroy(acb);
4902 	return ENXIO;
4903 }
4904 
4905 /*
4906 ************************************************************************
4907 ************************************************************************
4908 */
4909 static int arcmsr_probe(device_t dev)
4910 {
4911 	u_int32_t id;
4912 	u_int16_t sub_device_id;
4913 	static char buf[256];
4914 	char x_type[]={"unknown"};
4915 	char *type;
4916 	int raid6 = 1;
4917 
4918 	if (pci_get_vendor(dev) != PCI_VENDOR_ID_ARECA) {
4919 		return (ENXIO);
4920 	}
4921 	sub_device_id = pci_read_config(dev, PCIR_SUBDEV_0, 2);
4922 	switch(id = pci_get_devid(dev)) {
4923 	case PCIDevVenIDARC1110:
4924 	case PCIDevVenIDARC1200:
4925 	case PCIDevVenIDARC1201:
4926 	case PCIDevVenIDARC1210:
4927 		raid6 = 0;
4928 		/*FALLTHRU*/
4929 	case PCIDevVenIDARC1120:
4930 	case PCIDevVenIDARC1130:
4931 	case PCIDevVenIDARC1160:
4932 	case PCIDevVenIDARC1170:
4933 	case PCIDevVenIDARC1220:
4934 	case PCIDevVenIDARC1230:
4935 	case PCIDevVenIDARC1231:
4936 	case PCIDevVenIDARC1260:
4937 	case PCIDevVenIDARC1261:
4938 	case PCIDevVenIDARC1270:
4939 	case PCIDevVenIDARC1280:
4940 		type = "SATA 3G";
4941 		break;
4942 	case PCIDevVenIDARC1212:
4943 	case PCIDevVenIDARC1222:
4944 	case PCIDevVenIDARC1380:
4945 	case PCIDevVenIDARC1381:
4946 	case PCIDevVenIDARC1680:
4947 	case PCIDevVenIDARC1681:
4948 		type = "SAS 3G";
4949 		break;
4950 	case PCIDevVenIDARC1880:
4951 	case PCIDevVenIDARC1882:
4952 	case PCIDevVenIDARC1213:
4953 	case PCIDevVenIDARC1223:
4954 		if ((sub_device_id == ARECA_SUB_DEV_ID_1883) ||
4955 		    (sub_device_id == ARECA_SUB_DEV_ID_1216) ||
4956 		    (sub_device_id == ARECA_SUB_DEV_ID_1226))
4957 			type = "SAS 12G";
4958 		else
4959 			type = "SAS 6G";
4960 		break;
4961 	case PCIDevVenIDARC1884:
4962 		type = "SAS 12G";
4963 		break;
4964 	case PCIDevVenIDARC1214:
4965 	case PCIDevVenIDARC1203:
4966 		type = "SATA 6G";
4967 		break;
4968 	default:
4969 		type = x_type;
4970 		raid6 = 0;
4971 		break;
4972 	}
4973 	if(type == x_type)
4974 		return(ENXIO);
4975 	sprintf(buf, "Areca %s Host Adapter RAID Controller %s\n%s\n",
4976 		type, raid6 ? "(RAID6 capable)" : "", ARCMSR_DRIVER_VERSION);
4977 	device_set_desc_copy(dev, buf);
4978 	return (BUS_PROBE_DEFAULT);
4979 }
4980 /*
4981 ************************************************************************
4982 ************************************************************************
4983 */
4984 static int arcmsr_shutdown(device_t dev)
4985 {
4986 	u_int32_t  i;
4987 	u_int32_t intmask_org;
4988 	struct CommandControlBlock *srb;
4989 	struct AdapterControlBlock *acb=(struct AdapterControlBlock *)device_get_softc(dev);
4990 
4991 	/* stop adapter background rebuild */
4992 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
4993 	/* disable all outbound interrupt */
4994 	intmask_org = arcmsr_disable_allintr(acb);
4995 	arcmsr_stop_adapter_bgrb(acb);
4996 	arcmsr_flush_adapter_cache(acb);
4997 	/* abort all outstanding command */
4998 	acb->acb_flags |= ACB_F_SCSISTOPADAPTER;
4999 	acb->acb_flags &= ~ACB_F_IOP_INITED;
5000 	if(acb->srboutstandingcount != 0) {
5001 		/*clear and abort all outbound posted Q*/
5002 		arcmsr_done4abort_postqueue(acb);
5003 		/* talk to iop 331 outstanding command aborted*/
5004 		arcmsr_abort_allcmd(acb);
5005 		for(i=0; i < ARCMSR_MAX_FREESRB_NUM; i++) {
5006 			srb = acb->psrb_pool[i];
5007 			if(srb->srb_state == ARCMSR_SRB_START) {
5008 				srb->srb_state = ARCMSR_SRB_ABORTED;
5009 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
5010 				arcmsr_srb_complete(srb, 1);
5011 			}
5012 		}
5013 	}
5014 	acb->srboutstandingcount = 0;
5015 	acb->workingsrb_doneindex = 0;
5016 	acb->workingsrb_startindex = 0;
5017 	acb->pktRequestCount = 0;
5018 	acb->pktReturnCount = 0;
5019 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
5020 	return (0);
5021 }
5022 /*
5023 ************************************************************************
5024 ************************************************************************
5025 */
5026 static void arcmsr_teardown_intr(device_t dev, struct AdapterControlBlock *acb)
5027 {
5028 	int i;
5029 
5030 	if (acb->acb_flags & ACB_F_MSIX_ENABLED) {
5031 		for (i = 0; i < acb->msix_vectors; i++) {
5032 			if (acb->ih[i])
5033 				bus_teardown_intr(dev, acb->irqres[i], acb->ih[i]);
5034 			if (acb->irqres[i] != NULL)
5035 				bus_release_resource(dev, SYS_RES_IRQ,
5036 				    acb->irq_id[i], acb->irqres[i]);
5037 
5038 			acb->ih[i] = NULL;
5039 		}
5040 		pci_release_msi(dev);
5041 	} else {
5042 		if (acb->ih[0])
5043 			bus_teardown_intr(dev, acb->irqres[0], acb->ih[0]);
5044 		if (acb->irqres[0] != NULL)
5045 			bus_release_resource(dev, SYS_RES_IRQ,
5046 			    acb->irq_id[0], acb->irqres[0]);
5047 		acb->ih[0] = NULL;
5048 	}
5049 
5050 }
5051 /*
5052 ************************************************************************
5053 ************************************************************************
5054 */
5055 static int arcmsr_detach(device_t dev)
5056 {
5057 	struct AdapterControlBlock *acb=(struct AdapterControlBlock *)device_get_softc(dev);
5058 	int i;
5059 
5060 	callout_stop(&acb->devmap_callout);
5061 	arcmsr_teardown_intr(dev, acb);
5062 	arcmsr_shutdown(dev);
5063 	arcmsr_free_resource(acb);
5064 	for(i=0; (acb->sys_res_arcmsr[i]!=NULL) && (i<2); i++) {
5065 		bus_release_resource(dev, SYS_RES_MEMORY, acb->rid[i], acb->sys_res_arcmsr[i]);
5066 	}
5067 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
5068 	xpt_async(AC_LOST_DEVICE, acb->ppath, NULL);
5069 	xpt_free_path(acb->ppath);
5070 	xpt_bus_deregister(cam_sim_path(acb->psim));
5071 	cam_sim_free(acb->psim, TRUE);
5072 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
5073 	arcmsr_mutex_destroy(acb);
5074 	return (0);
5075 }
5076 
5077 #ifdef ARCMSR_DEBUG1
5078 static void arcmsr_dump_data(struct AdapterControlBlock *acb)
5079 {
5080 	if((acb->pktRequestCount - acb->pktReturnCount) == 0)
5081 		return;
5082 	printf("Command Request Count   =0x%x\n",acb->pktRequestCount);
5083 	printf("Command Return Count    =0x%x\n",acb->pktReturnCount);
5084 	printf("Command (Req-Rtn) Count =0x%x\n",(acb->pktRequestCount - acb->pktReturnCount));
5085 	printf("Queued Command Count    =0x%x\n",acb->srboutstandingcount);
5086 }
5087 #endif
5088