xref: /freebsd/sys/dev/arcmsr/arcmsr.c (revision 315ee00f)
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 ** 1.50.00.00   09/30/2020  Ching Huang     Added support ARC-1886, NVMe/SAS/SATA controller
85 ** 1.50.00.01   02/26/2021  Ching Huang     Fixed no action of hot plugging device on type_F adapter
86 ** 1.50.00.02   04/16/2021  Ching Huang     Fixed scsi command timeout on ARC-1886 when
87 **                                          scatter-gather count large than some number
88 ** 1.50.00.03   05/04/2021  Ching Huang     Fixed doorbell status arrived late on ARC-1886
89 ** 1.50.00.04   12/08/2021  Ching Huang     Fixed boot up hung under ARC-1886 with no volume created
90 ** 1.50.00.05   03/23/2023  Ching Huang     Fixed reading buffer empty length error
91 ******************************************************************************************
92 */
93 
94 #include <sys/cdefs.h>
95 #if 0
96 #define ARCMSR_DEBUG1			1
97 #endif
98 #include <sys/param.h>
99 #include <sys/systm.h>
100 #include <sys/malloc.h>
101 #include <sys/kernel.h>
102 #include <sys/bus.h>
103 #include <sys/queue.h>
104 #include <sys/stat.h>
105 #include <sys/devicestat.h>
106 #include <sys/kthread.h>
107 #include <sys/module.h>
108 #include <sys/proc.h>
109 #include <sys/lock.h>
110 #include <sys/sysctl.h>
111 #include <sys/poll.h>
112 #include <sys/ioccom.h>
113 #include <vm/vm.h>
114 #include <vm/vm_param.h>
115 #include <vm/pmap.h>
116 
117 #include <isa/rtc.h>
118 
119 #include <machine/bus.h>
120 #include <machine/resource.h>
121 #include <machine/atomic.h>
122 #include <sys/conf.h>
123 #include <sys/rman.h>
124 
125 #include <cam/cam.h>
126 #include <cam/cam_ccb.h>
127 #include <cam/cam_sim.h>
128 #include <cam/cam_periph.h>
129 #include <cam/cam_xpt_periph.h>
130 #include <cam/cam_xpt_sim.h>
131 #include <cam/cam_debug.h>
132 #include <cam/scsi/scsi_all.h>
133 #include <cam/scsi/scsi_message.h>
134 /*
135 **************************************************************************
136 **************************************************************************
137 */
138 #include <sys/selinfo.h>
139 #include <sys/mutex.h>
140 #include <sys/endian.h>
141 #include <dev/pci/pcivar.h>
142 #include <dev/pci/pcireg.h>
143 
144 #define arcmsr_callout_init(a)	callout_init(a, /*mpsafe*/1);
145 
146 #define ARCMSR_DRIVER_VERSION	"arcmsr version 1.50.00.05 2023-03-23"
147 #include <dev/arcmsr/arcmsr.h>
148 /*
149 **************************************************************************
150 **************************************************************************
151 */
152 static void arcmsr_free_srb(struct CommandControlBlock *srb);
153 static struct CommandControlBlock *arcmsr_get_freesrb(struct AdapterControlBlock *acb);
154 static u_int8_t arcmsr_seek_cmd2abort(union ccb *abortccb);
155 static int arcmsr_probe(device_t dev);
156 static int arcmsr_attach(device_t dev);
157 static int arcmsr_detach(device_t dev);
158 static u_int32_t arcmsr_iop_ioctlcmd(struct AdapterControlBlock *acb, u_int32_t ioctl_cmd, caddr_t arg);
159 static void arcmsr_iop_parking(struct AdapterControlBlock *acb);
160 static int arcmsr_shutdown(device_t dev);
161 static void arcmsr_interrupt(struct AdapterControlBlock *acb);
162 static void arcmsr_polling_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb);
163 static void arcmsr_free_resource(struct AdapterControlBlock *acb);
164 static void arcmsr_bus_reset(struct AdapterControlBlock *acb);
165 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb);
166 static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb);
167 static void arcmsr_iop_init(struct AdapterControlBlock *acb);
168 static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb);
169 static u_int32_t arcmsr_Read_iop_rqbuffer_data(struct AdapterControlBlock *acb, struct QBUFFER *prbuffer);
170 static void arcmsr_Write_data_2iop_wqbuffer(struct AdapterControlBlock *acb);
171 static void arcmsr_abort_allcmd(struct AdapterControlBlock *acb);
172 static void arcmsr_srb_complete(struct CommandControlBlock *srb, int stand_flag);
173 static void arcmsr_iop_reset(struct AdapterControlBlock *acb);
174 static void arcmsr_report_sense_info(struct CommandControlBlock *srb);
175 static void arcmsr_build_srb(struct CommandControlBlock *srb, bus_dma_segment_t *dm_segs, u_int32_t nseg);
176 static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, union ccb *pccb);
177 static int arcmsr_resume(device_t dev);
178 static int arcmsr_suspend(device_t dev);
179 static void arcmsr_rescanLun_cb(struct cam_periph *periph, union ccb *ccb);
180 static void arcmsr_polling_devmap(void *arg);
181 static void arcmsr_srb_timeout(void *arg);
182 static void arcmsr_hbd_postqueue_isr(struct AdapterControlBlock *acb);
183 static void arcmsr_hbe_postqueue_isr(struct AdapterControlBlock *acb);
184 static void arcmsr_hbf_postqueue_isr(struct AdapterControlBlock *acb);
185 static void arcmsr_teardown_intr(device_t dev, struct AdapterControlBlock *acb);
186 #ifdef ARCMSR_DEBUG1
187 static void arcmsr_dump_data(struct AdapterControlBlock *acb);
188 #endif
189 /*
190 **************************************************************************
191 **************************************************************************
192 */
193 static void UDELAY(u_int32_t us) { DELAY(us); }
194 /*
195 **************************************************************************
196 **************************************************************************
197 */
198 static bus_dmamap_callback_t arcmsr_map_free_srb;
199 static bus_dmamap_callback_t arcmsr_execute_srb;
200 /*
201 **************************************************************************
202 **************************************************************************
203 */
204 static d_open_t	arcmsr_open;
205 static d_close_t arcmsr_close;
206 static d_ioctl_t arcmsr_ioctl;
207 
208 static device_method_t arcmsr_methods[]={
209 	DEVMETHOD(device_probe,		arcmsr_probe),
210 	DEVMETHOD(device_attach,	arcmsr_attach),
211 	DEVMETHOD(device_detach,	arcmsr_detach),
212 	DEVMETHOD(device_shutdown,	arcmsr_shutdown),
213 	DEVMETHOD(device_suspend,	arcmsr_suspend),
214 	DEVMETHOD(device_resume,	arcmsr_resume),
215 	DEVMETHOD_END
216 };
217 
218 static driver_t arcmsr_driver={
219 	"arcmsr", arcmsr_methods, sizeof(struct AdapterControlBlock)
220 };
221 
222 DRIVER_MODULE(arcmsr, pci, arcmsr_driver, 0, 0);
223 MODULE_DEPEND(arcmsr, pci, 1, 1, 1);
224 MODULE_DEPEND(arcmsr, cam, 1, 1, 1);
225 #ifndef BUS_DMA_COHERENT
226 	#define	BUS_DMA_COHERENT	0x04	/* hint: map memory in a coherent way */
227 #endif
228 static struct cdevsw arcmsr_cdevsw={
229 		.d_version = D_VERSION,
230 		.d_open    = arcmsr_open, 	/* open     */
231 		.d_close   = arcmsr_close, 	/* close    */
232 		.d_ioctl   = arcmsr_ioctl, 	/* ioctl    */
233 		.d_name    = "arcmsr", 		/* name     */
234 	};
235 /*
236 **************************************************************************
237 **************************************************************************
238 */
239 static int arcmsr_open(struct cdev *dev, int flags, int fmt, struct thread *proc)
240 {
241 	return (0);
242 }
243 /*
244 **************************************************************************
245 **************************************************************************
246 */
247 static int arcmsr_close(struct cdev *dev, int flags, int fmt, struct thread *proc)
248 {
249 	return 0;
250 }
251 /*
252 **************************************************************************
253 **************************************************************************
254 */
255 static int arcmsr_ioctl(struct cdev *dev, u_long ioctl_cmd, caddr_t arg, int flags, struct thread *proc)
256 {
257 	struct AdapterControlBlock *acb = dev->si_drv1;
258 
259 	return (arcmsr_iop_ioctlcmd(acb, ioctl_cmd, arg));
260 }
261 /*
262 **********************************************************************
263 **********************************************************************
264 */
265 static u_int32_t arcmsr_disable_allintr( struct AdapterControlBlock *acb)
266 {
267 	u_int32_t intmask_org = 0;
268 
269 	switch (acb->adapter_type) {
270 	case ACB_ADAPTER_TYPE_A: {
271 			/* disable all outbound interrupt */
272 			intmask_org = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intmask); /* disable outbound message0 int */
273 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intmask, intmask_org|ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE);
274 		}
275 		break;
276 	case ACB_ADAPTER_TYPE_B: {
277 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
278 			/* disable all outbound interrupt */
279 			intmask_org = READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell_mask)
280 						& (~ARCMSR_IOP2DRV_MESSAGE_CMD_DONE); /* disable outbound message0 int */
281 			WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell_mask, 0); /* disable all interrupt */
282 		}
283 		break;
284 	case ACB_ADAPTER_TYPE_C: {
285 			/* disable all outbound interrupt */
286 			intmask_org = CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_mask); /* disable outbound message0 int */
287 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, host_int_mask, intmask_org|ARCMSR_HBCMU_ALL_INTMASKENABLE);
288 		}
289 		break;
290 	case ACB_ADAPTER_TYPE_D: {
291 			/* disable all outbound interrupt */
292 			intmask_org = CHIP_REG_READ32(HBD_MessageUnit, 0, pcief0_int_enable); /* disable outbound message0 int */
293 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, pcief0_int_enable, ARCMSR_HBDMU_ALL_INT_DISABLE);
294 		}
295 		break;
296 	case ACB_ADAPTER_TYPE_E:
297 	case ACB_ADAPTER_TYPE_F: {
298 			/* disable all outbound interrupt */
299 			intmask_org = CHIP_REG_READ32(HBE_MessageUnit, 0, host_int_mask); /* disable outbound message0 int */
300 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_mask, intmask_org | ARCMSR_HBEMU_ALL_INTMASKENABLE);
301 		}
302 		break;
303 	}
304 	return (intmask_org);
305 }
306 /*
307 **********************************************************************
308 **********************************************************************
309 */
310 static void arcmsr_enable_allintr( struct AdapterControlBlock *acb, u_int32_t intmask_org)
311 {
312 	u_int32_t mask;
313 
314 	switch (acb->adapter_type) {
315 	case ACB_ADAPTER_TYPE_A: {
316 			/* enable outbound Post Queue, outbound doorbell Interrupt */
317 			mask = ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE|ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE|ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE);
318 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intmask, intmask_org & mask);
319 			acb->outbound_int_enable = ~(intmask_org & mask) & 0x000000ff;
320 		}
321 		break;
322 	case ACB_ADAPTER_TYPE_B: {
323 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
324 			/* enable ARCMSR_IOP2DRV_MESSAGE_CMD_DONE */
325 			mask = (ARCMSR_IOP2DRV_DATA_WRITE_OK|ARCMSR_IOP2DRV_DATA_READ_OK|ARCMSR_IOP2DRV_CDB_DONE|ARCMSR_IOP2DRV_MESSAGE_CMD_DONE);
326 			WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell_mask, intmask_org | mask); /*1=interrupt enable, 0=interrupt disable*/
327 			acb->outbound_int_enable = (intmask_org | mask) & 0x0000000f;
328 		}
329 		break;
330 	case ACB_ADAPTER_TYPE_C: {
331 			/* enable outbound Post Queue, outbound doorbell Interrupt */
332 			mask = ~(ARCMSR_HBCMU_UTILITY_A_ISR_MASK | ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR_MASK | ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR_MASK);
333 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, host_int_mask, intmask_org & mask);
334 			acb->outbound_int_enable = ~(intmask_org & mask) & 0x0000000f;
335 		}
336 		break;
337 	case ACB_ADAPTER_TYPE_D: {
338 			/* enable outbound Post Queue, outbound doorbell Interrupt */
339 			mask = ARCMSR_HBDMU_ALL_INT_ENABLE;
340 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, pcief0_int_enable, intmask_org | mask);
341 			CHIP_REG_READ32(HBD_MessageUnit, 0, pcief0_int_enable);
342 			acb->outbound_int_enable = mask;
343 		}
344 		break;
345 	case ACB_ADAPTER_TYPE_E:
346 	case ACB_ADAPTER_TYPE_F: {
347 			/* enable outbound Post Queue, outbound doorbell Interrupt */
348 			mask = ~(ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR | ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR);
349 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_mask, intmask_org & mask);
350 			acb->outbound_int_enable = ~(intmask_org & mask) & 0x0000000f;
351 		}
352 		break;
353 	}
354 }
355 /*
356 **********************************************************************
357 **********************************************************************
358 */
359 static u_int8_t arcmsr_hba_wait_msgint_ready(struct AdapterControlBlock *acb)
360 {
361 	u_int32_t Index;
362 	u_int8_t Retries = 0x00;
363 
364 	do {
365 		for(Index=0; Index < 100; Index++) {
366 			if(CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intstatus) & ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
367 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, ARCMSR_MU_OUTBOUND_MESSAGE0_INT);/*clear interrupt*/
368 				return TRUE;
369 			}
370 			UDELAY(10000);
371 		}/*max 1 seconds*/
372 	}while(Retries++ < 20);/*max 20 sec*/
373 	return (FALSE);
374 }
375 /*
376 **********************************************************************
377 **********************************************************************
378 */
379 static u_int8_t arcmsr_hbb_wait_msgint_ready(struct AdapterControlBlock *acb)
380 {
381 	u_int32_t Index;
382 	u_int8_t Retries = 0x00;
383 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
384 
385 	do {
386 		for(Index=0; Index < 100; Index++) {
387 			if(READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell) & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
388 				WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_MESSAGE_INT_CLEAR_PATTERN);/*clear interrupt*/
389 				WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_END_OF_INTERRUPT);
390 				return TRUE;
391 			}
392 			UDELAY(10000);
393 		}/*max 1 seconds*/
394 	}while(Retries++ < 20);/*max 20 sec*/
395 	return (FALSE);
396 }
397 /*
398 **********************************************************************
399 **********************************************************************
400 */
401 static u_int8_t arcmsr_hbc_wait_msgint_ready(struct AdapterControlBlock *acb)
402 {
403 	u_int32_t Index;
404 	u_int8_t Retries = 0x00;
405 
406 	do {
407 		for(Index=0; Index < 100; Index++) {
408 			if(CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
409 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, outbound_doorbell_clear, ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR);/*clear interrupt*/
410 				return TRUE;
411 			}
412 			UDELAY(10000);
413 		}/*max 1 seconds*/
414 	}while(Retries++ < 20);/*max 20 sec*/
415 	return (FALSE);
416 }
417 /*
418 **********************************************************************
419 **********************************************************************
420 */
421 static u_int8_t arcmsr_hbd_wait_msgint_ready(struct AdapterControlBlock *acb)
422 {
423 	u_int32_t Index;
424 	u_int8_t Retries = 0x00;
425 
426 	do {
427 		for(Index=0; Index < 100; Index++) {
428 			if(CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE) {
429 				CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE_CLEAR);/*clear interrupt*/
430 				return TRUE;
431 			}
432 			UDELAY(10000);
433 		}/*max 1 seconds*/
434 	}while(Retries++ < 20);/*max 20 sec*/
435 	return (FALSE);
436 }
437 /*
438 **********************************************************************
439 **********************************************************************
440 */
441 static u_int8_t arcmsr_hbe_wait_msgint_ready(struct AdapterControlBlock *acb)
442 {
443 	u_int32_t Index, read_doorbell;
444 	u_int8_t Retries = 0x00;
445 
446 	do {
447 		for(Index=0; Index < 100; Index++) {
448 			read_doorbell = CHIP_REG_READ32(HBE_MessageUnit, 0, iobound_doorbell);
449 			if((read_doorbell ^ acb->in_doorbell) & ARCMSR_HBEMU_IOP2DRV_MESSAGE_CMD_DONE) {
450 				CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_status, 0);/*clear interrupt*/
451 				acb->in_doorbell = read_doorbell;
452 				return TRUE;
453 			}
454 			UDELAY(10000);
455 		}/*max 1 seconds*/
456 	}while(Retries++ < 20);/*max 20 sec*/
457 	return (FALSE);
458 }
459 /*
460 ************************************************************************
461 ************************************************************************
462 */
463 static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb)
464 {
465 	int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
466 
467 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_FLUSH_CACHE);
468 	do {
469 		if(arcmsr_hba_wait_msgint_ready(acb)) {
470 			break;
471 		} else {
472 			retry_count--;
473 		}
474 	}while(retry_count != 0);
475 }
476 /*
477 ************************************************************************
478 ************************************************************************
479 */
480 static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb)
481 {
482 	int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
483 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
484 
485 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_FLUSH_CACHE);
486 	do {
487 		if(arcmsr_hbb_wait_msgint_ready(acb)) {
488 			break;
489 		} else {
490 			retry_count--;
491 		}
492 	}while(retry_count != 0);
493 }
494 /*
495 ************************************************************************
496 ************************************************************************
497 */
498 static void arcmsr_flush_hbc_cache(struct AdapterControlBlock *acb)
499 {
500 	int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
501 
502 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_FLUSH_CACHE);
503 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
504 	do {
505 		if(arcmsr_hbc_wait_msgint_ready(acb)) {
506 			break;
507 		} else {
508 			retry_count--;
509 		}
510 	}while(retry_count != 0);
511 }
512 /*
513 ************************************************************************
514 ************************************************************************
515 */
516 static void arcmsr_flush_hbd_cache(struct AdapterControlBlock *acb)
517 {
518 	int retry_count = 30; /* enlarge wait flush adapter cache time: 10 minute */
519 
520 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_FLUSH_CACHE);
521 	do {
522 		if(arcmsr_hbd_wait_msgint_ready(acb)) {
523 			break;
524 		} else {
525 			retry_count--;
526 		}
527 	}while(retry_count != 0);
528 }
529 /*
530 ************************************************************************
531 ************************************************************************
532 */
533 static void arcmsr_flush_hbe_cache(struct AdapterControlBlock *acb)
534 {
535 	int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
536 
537 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_FLUSH_CACHE);
538 	acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
539 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
540 	do {
541 		if(arcmsr_hbe_wait_msgint_ready(acb)) {
542 			break;
543 		} else {
544 			retry_count--;
545 		}
546 	}while(retry_count != 0);
547 }
548 /*
549 ************************************************************************
550 ************************************************************************
551 */
552 static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb)
553 {
554 	switch (acb->adapter_type) {
555 	case ACB_ADAPTER_TYPE_A: {
556 			arcmsr_flush_hba_cache(acb);
557 		}
558 		break;
559 	case ACB_ADAPTER_TYPE_B: {
560 			arcmsr_flush_hbb_cache(acb);
561 		}
562 		break;
563 	case ACB_ADAPTER_TYPE_C: {
564 			arcmsr_flush_hbc_cache(acb);
565 		}
566 		break;
567 	case ACB_ADAPTER_TYPE_D: {
568 			arcmsr_flush_hbd_cache(acb);
569 		}
570 		break;
571 	case ACB_ADAPTER_TYPE_E:
572 	case ACB_ADAPTER_TYPE_F: {
573 			arcmsr_flush_hbe_cache(acb);
574 		}
575 		break;
576 	}
577 }
578 /*
579 *******************************************************************************
580 *******************************************************************************
581 */
582 static int arcmsr_suspend(device_t dev)
583 {
584 	struct AdapterControlBlock	*acb = device_get_softc(dev);
585 
586 	/* flush controller */
587 	arcmsr_iop_parking(acb);
588 	/* disable all outbound interrupt */
589 	arcmsr_disable_allintr(acb);
590 	return(0);
591 }
592 /*
593 *******************************************************************************
594 *******************************************************************************
595 */
596 static int arcmsr_resume(device_t dev)
597 {
598 	struct AdapterControlBlock	*acb = device_get_softc(dev);
599 
600 	arcmsr_iop_init(acb);
601 	return(0);
602 }
603 /*
604 *********************************************************************************
605 *********************************************************************************
606 */
607 static void arcmsr_async(void *cb_arg, u_int32_t code, struct cam_path *path, void *arg)
608 {
609 	u_int8_t target_id, target_lun;
610 
611 	switch (code) {
612 	case AC_LOST_DEVICE:
613 		target_id = xpt_path_target_id(path);
614 		target_lun = xpt_path_lun_id(path);
615 		if((target_id > ARCMSR_MAX_TARGETID) || (target_lun > ARCMSR_MAX_TARGETLUN)) {
616 			break;
617 		}
618 		break;
619 	default:
620 		break;
621 	}
622 }
623 /*
624 **********************************************************************
625 **********************************************************************
626 */
627 static void arcmsr_report_sense_info(struct CommandControlBlock *srb)
628 {
629 	union ccb *pccb = srb->pccb;
630 
631 	pccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
632 	pccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
633 	if(pccb->csio.sense_len) {
634 		memset(&pccb->csio.sense_data, 0, sizeof(pccb->csio.sense_data));
635 		memcpy(&pccb->csio.sense_data, srb->arcmsr_cdb.SenseData,
636 		get_min(sizeof(struct SENSE_DATA), sizeof(pccb->csio.sense_data)));
637 		((u_int8_t *)&pccb->csio.sense_data)[0] = (0x1 << 7 | 0x70); /* Valid,ErrorCode */
638 		pccb->ccb_h.status |= CAM_AUTOSNS_VALID;
639 	}
640 }
641 /*
642 *********************************************************************
643 *********************************************************************
644 */
645 static void arcmsr_abort_hba_allcmd(struct AdapterControlBlock *acb)
646 {
647 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_ABORT_CMD);
648 	if(!arcmsr_hba_wait_msgint_ready(acb)) {
649 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
650 	}
651 }
652 /*
653 *********************************************************************
654 *********************************************************************
655 */
656 static void arcmsr_abort_hbb_allcmd(struct AdapterControlBlock *acb)
657 {
658 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
659 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_ABORT_CMD);
660 	if(!arcmsr_hbb_wait_msgint_ready(acb)) {
661 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
662 	}
663 }
664 /*
665 *********************************************************************
666 *********************************************************************
667 */
668 static void arcmsr_abort_hbc_allcmd(struct AdapterControlBlock *acb)
669 {
670 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_ABORT_CMD);
671 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
672 	if(!arcmsr_hbc_wait_msgint_ready(acb)) {
673 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
674 	}
675 }
676 /*
677 *********************************************************************
678 *********************************************************************
679 */
680 static void arcmsr_abort_hbd_allcmd(struct AdapterControlBlock *acb)
681 {
682 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_ABORT_CMD);
683 	if(!arcmsr_hbd_wait_msgint_ready(acb)) {
684 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
685 	}
686 }
687 /*
688 *********************************************************************
689 *********************************************************************
690 */
691 static void arcmsr_abort_hbe_allcmd(struct AdapterControlBlock *acb)
692 {
693 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_ABORT_CMD);
694 	acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
695 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
696 	if(!arcmsr_hbe_wait_msgint_ready(acb)) {
697 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
698 	}
699 }
700 /*
701 *********************************************************************
702 *********************************************************************
703 */
704 static void arcmsr_abort_allcmd(struct AdapterControlBlock *acb)
705 {
706 	switch (acb->adapter_type) {
707 	case ACB_ADAPTER_TYPE_A: {
708 			arcmsr_abort_hba_allcmd(acb);
709 		}
710 		break;
711 	case ACB_ADAPTER_TYPE_B: {
712 			arcmsr_abort_hbb_allcmd(acb);
713 		}
714 		break;
715 	case ACB_ADAPTER_TYPE_C: {
716 			arcmsr_abort_hbc_allcmd(acb);
717 		}
718 		break;
719 	case ACB_ADAPTER_TYPE_D: {
720 			arcmsr_abort_hbd_allcmd(acb);
721 		}
722 		break;
723 	case ACB_ADAPTER_TYPE_E:
724 	case ACB_ADAPTER_TYPE_F: {
725 			arcmsr_abort_hbe_allcmd(acb);
726 		}
727 		break;
728 	}
729 }
730 /*
731 **********************************************************************
732 **********************************************************************
733 */
734 static void arcmsr_srb_complete(struct CommandControlBlock *srb, int stand_flag)
735 {
736 	struct AdapterControlBlock *acb = srb->acb;
737 	union ccb *pccb = srb->pccb;
738 
739 	if(srb->srb_flags & SRB_FLAG_TIMER_START)
740 		callout_stop(&srb->ccb_callout);
741 	if((pccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
742 		bus_dmasync_op_t op;
743 
744 		if((pccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
745 			op = BUS_DMASYNC_POSTREAD;
746 		} else {
747 			op = BUS_DMASYNC_POSTWRITE;
748 		}
749 		bus_dmamap_sync(acb->dm_segs_dmat, srb->dm_segs_dmamap, op);
750 		bus_dmamap_unload(acb->dm_segs_dmat, srb->dm_segs_dmamap);
751 	}
752 	if(stand_flag == 1) {
753 		atomic_subtract_int(&acb->srboutstandingcount, 1);
754 		if((acb->acb_flags & ACB_F_CAM_DEV_QFRZN) && (
755 		acb->srboutstandingcount < (acb->maxOutstanding -10))) {
756 			acb->acb_flags &= ~ACB_F_CAM_DEV_QFRZN;
757 			pccb->ccb_h.status |= CAM_RELEASE_SIMQ;
758 		}
759 	}
760 	if(srb->srb_state != ARCMSR_SRB_TIMEOUT)
761 		arcmsr_free_srb(srb);
762 	acb->pktReturnCount++;
763 	xpt_done(pccb);
764 }
765 /*
766 **************************************************************************
767 **************************************************************************
768 */
769 static void arcmsr_report_srb_state(struct AdapterControlBlock *acb, struct CommandControlBlock *srb, u_int16_t error)
770 {
771 	int target, lun;
772 
773 	target = srb->pccb->ccb_h.target_id;
774 	lun = srb->pccb->ccb_h.target_lun;
775 	if(error == FALSE) {
776 		if(acb->devstate[target][lun] == ARECA_RAID_GONE) {
777 			acb->devstate[target][lun] = ARECA_RAID_GOOD;
778 		}
779 		srb->pccb->ccb_h.status |= CAM_REQ_CMP;
780 		arcmsr_srb_complete(srb, 1);
781 	} else {
782 		switch(srb->arcmsr_cdb.DeviceStatus) {
783 		case ARCMSR_DEV_SELECT_TIMEOUT: {
784 				if(acb->devstate[target][lun] == ARECA_RAID_GOOD) {
785 					printf( "arcmsr%d: Target=%x, Lun=%x, selection timeout, raid volume was lost\n", acb->pci_unit, target, lun);
786 				}
787 				acb->devstate[target][lun] = ARECA_RAID_GONE;
788 				srb->pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
789 				arcmsr_srb_complete(srb, 1);
790 			}
791 			break;
792 		case ARCMSR_DEV_ABORTED:
793 		case ARCMSR_DEV_INIT_FAIL: {
794 				acb->devstate[target][lun] = ARECA_RAID_GONE;
795 				srb->pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
796 				arcmsr_srb_complete(srb, 1);
797 			}
798 			break;
799 		case SCSISTAT_CHECK_CONDITION: {
800 				acb->devstate[target][lun] = ARECA_RAID_GOOD;
801 				arcmsr_report_sense_info(srb);
802 				arcmsr_srb_complete(srb, 1);
803 			}
804 			break;
805 		default:
806 			printf("arcmsr%d: scsi id=%d lun=%d isr got command error done,but got unknown DeviceStatus=0x%x \n"
807 					, acb->pci_unit, target, lun ,srb->arcmsr_cdb.DeviceStatus);
808 			acb->devstate[target][lun] = ARECA_RAID_GONE;
809 			srb->pccb->ccb_h.status |= CAM_UNCOR_PARITY;
810 			/*unknown error or crc error just for retry*/
811 			arcmsr_srb_complete(srb, 1);
812 			break;
813 		}
814 	}
815 }
816 /*
817 **************************************************************************
818 **************************************************************************
819 */
820 static void arcmsr_drain_donequeue(struct AdapterControlBlock *acb, u_int32_t flag_srb, u_int16_t error)
821 {
822 	struct CommandControlBlock *srb;
823 
824 	/* check if command done with no error*/
825 	switch (acb->adapter_type) {
826 	case ACB_ADAPTER_TYPE_A:
827 	case ACB_ADAPTER_TYPE_B:
828 		srb = (struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb << 5));/*frame must be 32 bytes aligned*/
829 		break;
830 	case ACB_ADAPTER_TYPE_C:
831 	case ACB_ADAPTER_TYPE_D:
832 		srb = (struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb & 0xFFFFFFE0)); /*frame must be 32 bytes aligned*/
833 		break;
834 	case ACB_ADAPTER_TYPE_E:
835 	case ACB_ADAPTER_TYPE_F:
836 		srb = acb->psrb_pool[flag_srb];
837 		break;
838 	default:
839 		srb = (struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb << 5));/*frame must be 32 bytes aligned*/
840 		break;
841 	}
842 	if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
843 		if(srb->srb_state == ARCMSR_SRB_TIMEOUT) {
844 			arcmsr_free_srb(srb);
845 			printf("arcmsr%d: srb='%p' return srb has been timeouted\n", acb->pci_unit, srb);
846 			return;
847 		}
848 		printf("arcmsr%d: return srb has been completed\n"
849 			"srb='%p' srb_state=0x%x outstanding srb count=%d \n",
850 			acb->pci_unit, srb, srb->srb_state, acb->srboutstandingcount);
851 		return;
852 	}
853 	arcmsr_report_srb_state(acb, srb, error);
854 }
855 /*
856 **************************************************************************
857 **************************************************************************
858 */
859 static void	arcmsr_srb_timeout(void *arg)
860 {
861 	struct CommandControlBlock *srb = (struct CommandControlBlock *)arg;
862 	struct AdapterControlBlock *acb;
863 	int target, lun;
864 	u_int8_t cmd;
865 
866 	target = srb->pccb->ccb_h.target_id;
867 	lun = srb->pccb->ccb_h.target_lun;
868 	acb = srb->acb;
869 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
870 	if(srb->srb_state == ARCMSR_SRB_START)
871 	{
872 		cmd = scsiio_cdb_ptr(&srb->pccb->csio)[0];
873 		srb->srb_state = ARCMSR_SRB_TIMEOUT;
874 		srb->pccb->ccb_h.status |= CAM_CMD_TIMEOUT;
875 		arcmsr_srb_complete(srb, 1);
876 		printf("arcmsr%d: scsi id %d lun %d cmd=0x%x srb='%p' ccb command time out!\n",
877 				 acb->pci_unit, target, lun, cmd, srb);
878 	}
879 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
880 #ifdef ARCMSR_DEBUG1
881 	arcmsr_dump_data(acb);
882 #endif
883 }
884 
885 /*
886 **********************************************************************
887 **********************************************************************
888 */
889 static void arcmsr_done4abort_postqueue(struct AdapterControlBlock *acb)
890 {
891 	int i=0;
892 	u_int32_t flag_srb;
893 	u_int16_t error;
894 
895 	switch (acb->adapter_type) {
896 	case ACB_ADAPTER_TYPE_A: {
897 			u_int32_t outbound_intstatus;
898 
899 			/*clear and abort all outbound posted Q*/
900 			outbound_intstatus = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intstatus) & acb->outbound_int_enable;
901 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, outbound_intstatus);/*clear interrupt*/
902 			while(((flag_srb=CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_queueport)) != 0xFFFFFFFF) && (i++ < ARCMSR_MAX_OUTSTANDING_CMD)) {
903 				error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0)?TRUE:FALSE;
904 				arcmsr_drain_donequeue(acb, flag_srb, error);
905 			}
906 		}
907 		break;
908 	case ACB_ADAPTER_TYPE_B: {
909 			struct HBB_MessageUnit *phbbmu=(struct HBB_MessageUnit *)acb->pmu;
910 
911 			/*clear all outbound posted Q*/
912 			WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_DOORBELL_INT_CLEAR_PATTERN); /* clear doorbell interrupt */
913 			for(i=0; i < ARCMSR_MAX_HBB_POSTQUEUE; i++) {
914 				if((flag_srb = phbbmu->done_qbuffer[i]) != 0) {
915 					phbbmu->done_qbuffer[i] = 0;
916 					error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0)?TRUE:FALSE;
917 					arcmsr_drain_donequeue(acb, flag_srb, error);
918 				}
919 				phbbmu->post_qbuffer[i] = 0;
920 			}/*drain reply FIFO*/
921 			phbbmu->doneq_index = 0;
922 			phbbmu->postq_index = 0;
923 		}
924 		break;
925 	case ACB_ADAPTER_TYPE_C: {
926 			while((CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) && (i++ < ARCMSR_MAX_OUTSTANDING_CMD)) {
927 				flag_srb = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_queueport_low);
928 				error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1) ? TRUE : FALSE;
929 				arcmsr_drain_donequeue(acb, flag_srb, error);
930 			}
931 		}
932 		break;
933 	case ACB_ADAPTER_TYPE_D:
934 		arcmsr_hbd_postqueue_isr(acb);
935 		break;
936 	case ACB_ADAPTER_TYPE_E:
937 		arcmsr_hbe_postqueue_isr(acb);
938 		break;
939 	case ACB_ADAPTER_TYPE_F:
940 		arcmsr_hbf_postqueue_isr(acb);
941 		break;
942 	}
943 }
944 /*
945 ****************************************************************************
946 ****************************************************************************
947 */
948 static void arcmsr_iop_reset(struct AdapterControlBlock *acb)
949 {
950 	struct CommandControlBlock *srb;
951 	u_int32_t intmask_org;
952 	u_int32_t i=0;
953 
954 	if(acb->srboutstandingcount>0) {
955 		/* disable all outbound interrupt */
956 		intmask_org = arcmsr_disable_allintr(acb);
957 		/*clear and abort all outbound posted Q*/
958 		arcmsr_done4abort_postqueue(acb);
959 		/* talk to iop 331 outstanding command aborted*/
960 		arcmsr_abort_allcmd(acb);
961 		for(i=0; i < ARCMSR_MAX_FREESRB_NUM; i++) {
962 			srb = acb->psrb_pool[i];
963 			if(srb->srb_state == ARCMSR_SRB_START) {
964 				srb->srb_state = ARCMSR_SRB_ABORTED;
965 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
966 				arcmsr_srb_complete(srb, 1);
967 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p' aborted\n"
968 						, acb->pci_unit, srb->pccb->ccb_h.target_id
969 						, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
970 			}
971 		}
972 		/* enable all outbound interrupt */
973 		arcmsr_enable_allintr(acb, intmask_org);
974 	}
975 	acb->srboutstandingcount = 0;
976 	acb->workingsrb_doneindex = 0;
977 	acb->workingsrb_startindex = 0;
978 	acb->pktRequestCount = 0;
979 	acb->pktReturnCount = 0;
980 }
981 /*
982 **********************************************************************
983 **********************************************************************
984 */
985 static void arcmsr_build_srb(struct CommandControlBlock *srb,
986 		bus_dma_segment_t *dm_segs, u_int32_t nseg)
987 {
988 	struct ARCMSR_CDB *arcmsr_cdb = &srb->arcmsr_cdb;
989 	u_int8_t *psge = (u_int8_t *)&arcmsr_cdb->u;
990 	u_int32_t address_lo, address_hi;
991 	union ccb *pccb = srb->pccb;
992 	struct ccb_scsiio *pcsio = &pccb->csio;
993 	u_int32_t arccdbsize = 0x30;
994 
995 	memset(arcmsr_cdb, 0, sizeof(struct ARCMSR_CDB));
996 	arcmsr_cdb->Bus = 0;
997 	arcmsr_cdb->TargetID = pccb->ccb_h.target_id;
998 	arcmsr_cdb->LUN = pccb->ccb_h.target_lun;
999 	arcmsr_cdb->Function = 1;
1000 	arcmsr_cdb->CdbLength = (u_int8_t)pcsio->cdb_len;
1001 	bcopy(scsiio_cdb_ptr(pcsio), arcmsr_cdb->Cdb, pcsio->cdb_len);
1002 	if(nseg != 0) {
1003 		struct AdapterControlBlock *acb = srb->acb;
1004 		bus_dmasync_op_t op;
1005 		u_int32_t length, i, cdb_sgcount = 0;
1006 
1007 		if((pccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1008 			op = BUS_DMASYNC_PREREAD;
1009 		} else {
1010 			op = BUS_DMASYNC_PREWRITE;
1011 			arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_WRITE;
1012 			srb->srb_flags |= SRB_FLAG_WRITE;
1013 		}
1014 		bus_dmamap_sync(acb->dm_segs_dmat, srb->dm_segs_dmamap, op);
1015 		for(i=0; i < nseg; i++) {
1016 			/* Get the physical address of the current data pointer */
1017 			length = arcmsr_htole32(dm_segs[i].ds_len);
1018 			address_lo = arcmsr_htole32(dma_addr_lo32(dm_segs[i].ds_addr));
1019 			address_hi = arcmsr_htole32(dma_addr_hi32(dm_segs[i].ds_addr));
1020 			if(address_hi == 0) {
1021 				struct SG32ENTRY *pdma_sg = (struct SG32ENTRY *)psge;
1022 				pdma_sg->address = address_lo;
1023 				pdma_sg->length = length;
1024 				psge += sizeof(struct SG32ENTRY);
1025 				arccdbsize += sizeof(struct SG32ENTRY);
1026 			} else {
1027 				u_int32_t sg64s_size = 0, tmplength = length;
1028 
1029 				while(1) {
1030 					u_int64_t span4G, length0;
1031 					struct SG64ENTRY *pdma_sg = (struct SG64ENTRY *)psge;
1032 
1033 					span4G = (u_int64_t)address_lo + tmplength;
1034 					pdma_sg->addresshigh = address_hi;
1035 					pdma_sg->address = address_lo;
1036 					if(span4G > 0x100000000) {
1037 						/*see if cross 4G boundary*/
1038 						length0 = 0x100000000-address_lo;
1039 						pdma_sg->length = (u_int32_t)length0 | IS_SG64_ADDR;
1040 						address_hi = address_hi+1;
1041 						address_lo = 0;
1042 						tmplength = tmplength - (u_int32_t)length0;
1043 						sg64s_size += sizeof(struct SG64ENTRY);
1044 						psge += sizeof(struct SG64ENTRY);
1045 						cdb_sgcount++;
1046 					} else {
1047 						pdma_sg->length = tmplength | IS_SG64_ADDR;
1048 						sg64s_size += sizeof(struct SG64ENTRY);
1049 						psge += sizeof(struct SG64ENTRY);
1050 						break;
1051 					}
1052 				}
1053 				arccdbsize += sg64s_size;
1054 			}
1055 			cdb_sgcount++;
1056 		}
1057 		arcmsr_cdb->sgcount = (u_int8_t)cdb_sgcount;
1058 		arcmsr_cdb->DataLength = pcsio->dxfer_len;
1059 		if( arccdbsize > 256) {
1060 			arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_SGL_BSIZE;
1061 		}
1062 	} else {
1063 		arcmsr_cdb->DataLength = 0;
1064 	}
1065 	srb->arc_cdb_size = arccdbsize;
1066 	arcmsr_cdb->msgPages = (arccdbsize/256) + ((arccdbsize % 256) ? 1 : 0);
1067 }
1068 /*
1069 **************************************************************************
1070 **************************************************************************
1071 */
1072 static void arcmsr_post_srb(struct AdapterControlBlock *acb, struct CommandControlBlock *srb)
1073 {
1074 	u_int32_t cdb_phyaddr_low = (u_int32_t) srb->cdb_phyaddr_low;
1075 	struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&srb->arcmsr_cdb;
1076 
1077 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, (srb->srb_flags & SRB_FLAG_WRITE) ? BUS_DMASYNC_POSTWRITE:BUS_DMASYNC_POSTREAD);
1078 	atomic_add_int(&acb->srboutstandingcount, 1);
1079 	srb->srb_state = ARCMSR_SRB_START;
1080 
1081 	switch (acb->adapter_type) {
1082 	case ACB_ADAPTER_TYPE_A: {
1083 			if(arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) {
1084 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_queueport, cdb_phyaddr_low|ARCMSR_SRBPOST_FLAG_SGL_BSIZE);
1085 			} else {
1086 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_queueport, cdb_phyaddr_low);
1087 			}
1088 		}
1089 		break;
1090 	case ACB_ADAPTER_TYPE_B: {
1091 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1092 			int ending_index, index;
1093 
1094 			index = phbbmu->postq_index;
1095 			ending_index = ((index+1) % ARCMSR_MAX_HBB_POSTQUEUE);
1096 			phbbmu->post_qbuffer[ending_index] = 0;
1097 			if(arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) {
1098 				phbbmu->post_qbuffer[index] = cdb_phyaddr_low | ARCMSR_SRBPOST_FLAG_SGL_BSIZE;
1099 			} else {
1100 				phbbmu->post_qbuffer[index] = cdb_phyaddr_low;
1101 			}
1102 			index++;
1103 			index %= ARCMSR_MAX_HBB_POSTQUEUE;     /*if last index number set it to 0 */
1104 			phbbmu->postq_index = index;
1105 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_CDB_POSTED);
1106 		}
1107 		break;
1108 	case ACB_ADAPTER_TYPE_C: {
1109 			u_int32_t ccb_post_stamp, arc_cdb_size, cdb_phyaddr_hi32;
1110 
1111 			arc_cdb_size = (srb->arc_cdb_size > 0x300) ? 0x300 : srb->arc_cdb_size;
1112 			ccb_post_stamp = (cdb_phyaddr_low | ((arc_cdb_size-1) >> 6) | 1);
1113 			cdb_phyaddr_hi32 = acb->srb_phyaddr.B.phyadd_high;
1114 			if(cdb_phyaddr_hi32)
1115 			{
1116 				CHIP_REG_WRITE32(HBC_MessageUnit,0,inbound_queueport_high, cdb_phyaddr_hi32);
1117 				CHIP_REG_WRITE32(HBC_MessageUnit,0,inbound_queueport_low, ccb_post_stamp);
1118 			}
1119 			else
1120 			{
1121 				CHIP_REG_WRITE32(HBC_MessageUnit,0,inbound_queueport_low, ccb_post_stamp);
1122 			}
1123 		}
1124 		break;
1125 	case ACB_ADAPTER_TYPE_D: {
1126 			struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
1127 			u_int16_t index_stripped;
1128 			u_int16_t postq_index;
1129 			struct InBound_SRB *pinbound_srb;
1130 
1131 			ARCMSR_LOCK_ACQUIRE(&acb->postDone_lock);
1132 			postq_index = phbdmu->postq_index;
1133 			pinbound_srb = (struct InBound_SRB *)&phbdmu->post_qbuffer[postq_index & 0xFF];
1134 			pinbound_srb->addressHigh = srb->cdb_phyaddr_high;
1135 			pinbound_srb->addressLow = srb->cdb_phyaddr_low;
1136 			pinbound_srb->length = srb->arc_cdb_size >> 2;
1137 			arcmsr_cdb->Context = srb->cdb_phyaddr_low;
1138 			if (postq_index & 0x4000) {
1139 				index_stripped = postq_index & 0xFF;
1140 				index_stripped += 1;
1141 				index_stripped %= ARCMSR_MAX_HBD_POSTQUEUE;
1142 				phbdmu->postq_index = index_stripped ? (index_stripped | 0x4000) : index_stripped;
1143 			} else {
1144 				index_stripped = postq_index;
1145 				index_stripped += 1;
1146 				index_stripped %= ARCMSR_MAX_HBD_POSTQUEUE;
1147 				phbdmu->postq_index = index_stripped ? index_stripped : (index_stripped | 0x4000);
1148 			}
1149 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inboundlist_write_pointer, postq_index);
1150 			ARCMSR_LOCK_RELEASE(&acb->postDone_lock);
1151 		}
1152 		break;
1153 	case ACB_ADAPTER_TYPE_E: {
1154 			u_int32_t ccb_post_stamp, arc_cdb_size;
1155 
1156 			arc_cdb_size = (srb->arc_cdb_size > 0x300) ? 0x300 : srb->arc_cdb_size;
1157 			ccb_post_stamp = (srb->smid | ((arc_cdb_size-1) >> 6));
1158 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_queueport_high, 0);
1159 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_queueport_low, ccb_post_stamp);
1160 		}
1161 		break;
1162 	case ACB_ADAPTER_TYPE_F: {
1163 			u_int32_t ccb_post_stamp, arc_cdb_size;
1164 
1165 			if (srb->arc_cdb_size <= 0x300)
1166 				arc_cdb_size = (srb->arc_cdb_size - 1) >> 6 | 1;
1167 			else {
1168 				arc_cdb_size = ((srb->arc_cdb_size + 0xff) >> 8) + 2;
1169 				if (arc_cdb_size > 0xF)
1170 					arc_cdb_size = 0xF;
1171 				arc_cdb_size = (arc_cdb_size << 1) | 1;
1172 			}
1173 			ccb_post_stamp = (srb->smid | arc_cdb_size);
1174 			CHIP_REG_WRITE32(HBF_MessageUnit, 0, inbound_queueport_high, 0);
1175 			CHIP_REG_WRITE32(HBF_MessageUnit, 0, inbound_queueport_low, ccb_post_stamp);
1176 		}
1177 		break;
1178 	}
1179 }
1180 /*
1181 ************************************************************************
1182 ************************************************************************
1183 */
1184 static struct QBUFFER *arcmsr_get_iop_rqbuffer( struct AdapterControlBlock *acb)
1185 {
1186 	struct QBUFFER *qbuffer=NULL;
1187 
1188 	switch (acb->adapter_type) {
1189 	case ACB_ADAPTER_TYPE_A: {
1190 			struct HBA_MessageUnit *phbamu = (struct HBA_MessageUnit *)acb->pmu;
1191 
1192 			qbuffer = (struct QBUFFER *)&phbamu->message_rbuffer;
1193 		}
1194 		break;
1195 	case ACB_ADAPTER_TYPE_B: {
1196 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1197 
1198 			qbuffer = (struct QBUFFER *)&phbbmu->hbb_rwbuffer->message_rbuffer;
1199 		}
1200 		break;
1201 	case ACB_ADAPTER_TYPE_C: {
1202 			struct HBC_MessageUnit *phbcmu = (struct HBC_MessageUnit *)acb->pmu;
1203 
1204 			qbuffer = (struct QBUFFER *)&phbcmu->message_rbuffer;
1205 		}
1206 		break;
1207 	case ACB_ADAPTER_TYPE_D: {
1208 			struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
1209 
1210 			qbuffer = (struct QBUFFER *)&phbdmu->phbdmu->message_rbuffer;
1211 		}
1212 		break;
1213 	case ACB_ADAPTER_TYPE_E: {
1214 			struct HBE_MessageUnit *phbcmu = (struct HBE_MessageUnit *)acb->pmu;
1215 
1216 			qbuffer = (struct QBUFFER *)&phbcmu->message_rbuffer;
1217 		}
1218 		break;
1219 	case ACB_ADAPTER_TYPE_F:
1220 		qbuffer = (struct QBUFFER *)acb->message_rbuffer;
1221 		break;
1222 	}
1223 	return(qbuffer);
1224 }
1225 /*
1226 ************************************************************************
1227 ************************************************************************
1228 */
1229 static struct QBUFFER *arcmsr_get_iop_wqbuffer( struct AdapterControlBlock *acb)
1230 {
1231 	struct QBUFFER *qbuffer = NULL;
1232 
1233 	switch (acb->adapter_type) {
1234 	case ACB_ADAPTER_TYPE_A: {
1235 			struct HBA_MessageUnit *phbamu = (struct HBA_MessageUnit *)acb->pmu;
1236 
1237 			qbuffer = (struct QBUFFER *)&phbamu->message_wbuffer;
1238 		}
1239 		break;
1240 	case ACB_ADAPTER_TYPE_B: {
1241 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1242 
1243 			qbuffer = (struct QBUFFER *)&phbbmu->hbb_rwbuffer->message_wbuffer;
1244 		}
1245 		break;
1246 	case ACB_ADAPTER_TYPE_C: {
1247 			struct HBC_MessageUnit *phbcmu = (struct HBC_MessageUnit *)acb->pmu;
1248 
1249 			qbuffer = (struct QBUFFER *)&phbcmu->message_wbuffer;
1250 		}
1251 		break;
1252 	case ACB_ADAPTER_TYPE_D: {
1253 			struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
1254 
1255 			qbuffer = (struct QBUFFER *)&phbdmu->phbdmu->message_wbuffer;
1256 		}
1257 		break;
1258 	case ACB_ADAPTER_TYPE_E: {
1259 			struct HBE_MessageUnit *phbcmu = (struct HBE_MessageUnit *)acb->pmu;
1260 
1261 			qbuffer = (struct QBUFFER *)&phbcmu->message_wbuffer;
1262 		}
1263 		break;
1264 	case ACB_ADAPTER_TYPE_F:
1265 		qbuffer = (struct QBUFFER *)acb->message_wbuffer;
1266 		break;
1267 	}
1268 	return(qbuffer);
1269 }
1270 /*
1271 **************************************************************************
1272 **************************************************************************
1273 */
1274 static void arcmsr_iop_message_read(struct AdapterControlBlock *acb)
1275 {
1276 	switch (acb->adapter_type) {
1277 	case ACB_ADAPTER_TYPE_A: {
1278 			/* let IOP know data has been read */
1279 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_READ_OK);
1280 		}
1281 		break;
1282 	case ACB_ADAPTER_TYPE_B: {
1283 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1284 			/* let IOP know data has been read */
1285 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_DATA_READ_OK);
1286 		}
1287 		break;
1288 	case ACB_ADAPTER_TYPE_C: {
1289 			/* let IOP know data has been read */
1290 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK);
1291 		}
1292 		break;
1293 	case ACB_ADAPTER_TYPE_D: {
1294 			/* let IOP know data has been read */
1295 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_doorbell, ARCMSR_HBDMU_DRV2IOP_DATA_OUT_READ);
1296 		}
1297 		break;
1298 	case ACB_ADAPTER_TYPE_E:
1299 	case ACB_ADAPTER_TYPE_F: {
1300 			/* let IOP know data has been read */
1301 			acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_READ_OK;
1302 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
1303 		}
1304 		break;
1305 	}
1306 }
1307 /*
1308 **************************************************************************
1309 **************************************************************************
1310 */
1311 static void arcmsr_iop_message_wrote(struct AdapterControlBlock *acb)
1312 {
1313 	switch (acb->adapter_type) {
1314 	case ACB_ADAPTER_TYPE_A: {
1315 			/*
1316 			** push inbound doorbell tell iop, driver data write ok
1317 			** and wait reply on next hwinterrupt for next Qbuffer post
1318 			*/
1319 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK);
1320 		}
1321 		break;
1322 	case ACB_ADAPTER_TYPE_B: {
1323 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1324 			/*
1325 			** push inbound doorbell tell iop, driver data write ok
1326 			** and wait reply on next hwinterrupt for next Qbuffer post
1327 			*/
1328 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_DATA_WRITE_OK);
1329 		}
1330 		break;
1331 	case ACB_ADAPTER_TYPE_C: {
1332 			/*
1333 			** push inbound doorbell tell iop, driver data write ok
1334 			** and wait reply on next hwinterrupt for next Qbuffer post
1335 			*/
1336 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_DATA_WRITE_OK);
1337 		}
1338 		break;
1339 	case ACB_ADAPTER_TYPE_D: {
1340 			/*
1341 			** push inbound doorbell tell iop, driver data write ok
1342 			** and wait reply on next hwinterrupt for next Qbuffer post
1343 			*/
1344 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_doorbell, ARCMSR_HBDMU_DRV2IOP_DATA_IN_READY);
1345 		}
1346 		break;
1347 	case ACB_ADAPTER_TYPE_E:
1348 	case ACB_ADAPTER_TYPE_F: {
1349 			/*
1350 			** push inbound doorbell tell iop, driver data write ok
1351 			** and wait reply on next hwinterrupt for next Qbuffer post
1352 			*/
1353 			acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_WRITE_OK;
1354 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
1355 		}
1356 		break;
1357 	}
1358 }
1359 /*
1360 ************************************************************************
1361 ************************************************************************
1362 */
1363 static void arcmsr_stop_hba_bgrb(struct AdapterControlBlock *acb)
1364 {
1365 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1366 	CHIP_REG_WRITE32(HBA_MessageUnit,
1367 		0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_STOP_BGRB);
1368 	if(!arcmsr_hba_wait_msgint_ready(acb)) {
1369 		printf("arcmsr%d: wait 'stop adapter background rebulid' timeout \n"
1370 			, acb->pci_unit);
1371 	}
1372 }
1373 /*
1374 ************************************************************************
1375 ************************************************************************
1376 */
1377 static void arcmsr_stop_hbb_bgrb(struct AdapterControlBlock *acb)
1378 {
1379 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1380 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1381 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_STOP_BGRB);
1382 	if(!arcmsr_hbb_wait_msgint_ready(acb)) {
1383 		printf( "arcmsr%d: wait 'stop adapter background rebulid' timeout \n"
1384 			, acb->pci_unit);
1385 	}
1386 }
1387 /*
1388 ************************************************************************
1389 ************************************************************************
1390 */
1391 static void arcmsr_stop_hbc_bgrb(struct AdapterControlBlock *acb)
1392 {
1393 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1394 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_STOP_BGRB);
1395 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell,ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
1396 	if(!arcmsr_hbc_wait_msgint_ready(acb)) {
1397 		printf("arcmsr%d: wait 'stop adapter background rebulid' timeout \n", acb->pci_unit);
1398 	}
1399 }
1400 /*
1401 ************************************************************************
1402 ************************************************************************
1403 */
1404 static void arcmsr_stop_hbd_bgrb(struct AdapterControlBlock *acb)
1405 {
1406 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1407 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_STOP_BGRB);
1408 	if(!arcmsr_hbd_wait_msgint_ready(acb)) {
1409 		printf("arcmsr%d: wait 'stop adapter background rebulid' timeout \n", acb->pci_unit);
1410 	}
1411 }
1412 /*
1413 ************************************************************************
1414 ************************************************************************
1415 */
1416 static void arcmsr_stop_hbe_bgrb(struct AdapterControlBlock *acb)
1417 {
1418 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1419 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_STOP_BGRB);
1420 	acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
1421 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
1422 	if(!arcmsr_hbe_wait_msgint_ready(acb)) {
1423 		printf("arcmsr%d: wait 'stop adapter background rebulid' timeout \n", acb->pci_unit);
1424 	}
1425 }
1426 /*
1427 ************************************************************************
1428 ************************************************************************
1429 */
1430 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb)
1431 {
1432 	switch (acb->adapter_type) {
1433 	case ACB_ADAPTER_TYPE_A: {
1434 			arcmsr_stop_hba_bgrb(acb);
1435 		}
1436 		break;
1437 	case ACB_ADAPTER_TYPE_B: {
1438 			arcmsr_stop_hbb_bgrb(acb);
1439 		}
1440 		break;
1441 	case ACB_ADAPTER_TYPE_C: {
1442 			arcmsr_stop_hbc_bgrb(acb);
1443 		}
1444 		break;
1445 	case ACB_ADAPTER_TYPE_D: {
1446 			arcmsr_stop_hbd_bgrb(acb);
1447 		}
1448 		break;
1449 	case ACB_ADAPTER_TYPE_E:
1450 	case ACB_ADAPTER_TYPE_F: {
1451 			arcmsr_stop_hbe_bgrb(acb);
1452 		}
1453 		break;
1454 	}
1455 }
1456 /*
1457 ************************************************************************
1458 ************************************************************************
1459 */
1460 static void arcmsr_poll(struct cam_sim *psim)
1461 {
1462 	struct AdapterControlBlock *acb;
1463 	int	mutex;
1464 
1465 	acb = (struct AdapterControlBlock *)cam_sim_softc(psim);
1466 	mutex = mtx_owned(&acb->isr_lock);
1467 	if( mutex == 0 )
1468 		ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
1469 	arcmsr_interrupt(acb);
1470 	if( mutex == 0 )
1471 		ARCMSR_LOCK_RELEASE(&acb->isr_lock);
1472 }
1473 /*
1474 **************************************************************************
1475 **************************************************************************
1476 */
1477 static u_int32_t arcmsr_Read_iop_rqbuffer_data_D(struct AdapterControlBlock *acb,
1478 	struct QBUFFER *prbuffer) {
1479 	u_int8_t *pQbuffer;
1480 	u_int8_t *buf1 = NULL;
1481 	u_int32_t *iop_data, *buf2 = NULL;
1482 	u_int32_t iop_len, data_len;
1483 
1484 	iop_data = (u_int32_t *)prbuffer->data;
1485 	iop_len = (u_int32_t)prbuffer->data_len;
1486 	if ( iop_len > 0 )
1487 	{
1488 		buf1 = malloc(128, M_DEVBUF, M_NOWAIT | M_ZERO);
1489 		buf2 = (u_int32_t *)buf1;
1490 		if( buf1 == NULL)
1491 			return (0);
1492 		data_len = iop_len;
1493 		while(data_len >= 4)
1494 		{
1495 			*buf2++ = *iop_data++;
1496 			data_len -= 4;
1497 		}
1498 		if(data_len)
1499 			*buf2 = *iop_data;
1500 		buf2 = (u_int32_t *)buf1;
1501 	}
1502 	while (iop_len > 0) {
1503 		pQbuffer = &acb->rqbuffer[acb->rqbuf_lastindex];
1504 		*pQbuffer = *buf1;
1505 		acb->rqbuf_lastindex++;
1506 		/* if last, index number set it to 0 */
1507 		acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
1508 		buf1++;
1509 		iop_len--;
1510 	}
1511 	if(buf2)
1512 		free( (u_int8_t *)buf2, M_DEVBUF);
1513 	/* let IOP know data has been read */
1514 	arcmsr_iop_message_read(acb);
1515 	return (1);
1516 }
1517 /*
1518 **************************************************************************
1519 **************************************************************************
1520 */
1521 static u_int32_t arcmsr_Read_iop_rqbuffer_data(struct AdapterControlBlock *acb,
1522 	struct QBUFFER *prbuffer) {
1523 	u_int8_t *pQbuffer;
1524 	u_int8_t *iop_data;
1525 	u_int32_t iop_len;
1526 
1527 	if(acb->adapter_type >= ACB_ADAPTER_TYPE_B) {
1528 		return(arcmsr_Read_iop_rqbuffer_data_D(acb, prbuffer));
1529 	}
1530 	iop_data = (u_int8_t *)prbuffer->data;
1531 	iop_len = (u_int32_t)prbuffer->data_len;
1532 	while (iop_len > 0) {
1533 		pQbuffer = &acb->rqbuffer[acb->rqbuf_lastindex];
1534 		*pQbuffer = *iop_data;
1535 		acb->rqbuf_lastindex++;
1536 		/* if last, index number set it to 0 */
1537 		acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
1538 		iop_data++;
1539 		iop_len--;
1540 	}
1541 	/* let IOP know data has been read */
1542 	arcmsr_iop_message_read(acb);
1543 	return (1);
1544 }
1545 /*
1546 **************************************************************************
1547 **************************************************************************
1548 */
1549 static void arcmsr_iop2drv_data_wrote_handle(struct AdapterControlBlock *acb)
1550 {
1551 	struct QBUFFER *prbuffer;
1552 	int my_empty_len;
1553 
1554 	/*check this iop data if overflow my rqbuffer*/
1555 	ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
1556 	prbuffer = arcmsr_get_iop_rqbuffer(acb);
1557 	if (acb->rqbuf_lastindex >= acb->rqbuf_firstindex)
1558 		my_empty_len = (ARCMSR_MAX_QBUFFER - 1) - (acb->rqbuf_lastindex - acb->rqbuf_firstindex);
1559 	else
1560 		my_empty_len = acb->rqbuf_firstindex - acb->rqbuf_lastindex - 1;
1561 	if(my_empty_len >= prbuffer->data_len) {
1562 		if(arcmsr_Read_iop_rqbuffer_data(acb, prbuffer) == 0)
1563 			acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
1564 	} else {
1565 		acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
1566 	}
1567 	ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
1568 }
1569 /*
1570 **********************************************************************
1571 **********************************************************************
1572 */
1573 static void arcmsr_Write_data_2iop_wqbuffer_D(struct AdapterControlBlock *acb)
1574 {
1575 	u_int8_t *pQbuffer;
1576 	struct QBUFFER *pwbuffer;
1577 	u_int8_t *buf1 = NULL;
1578 	u_int32_t *iop_data, *buf2 = NULL;
1579 	u_int32_t allxfer_len = 0, data_len;
1580 
1581 	if(acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READ) {
1582 		buf1 = malloc(128, M_DEVBUF, M_NOWAIT | M_ZERO);
1583 		buf2 = (u_int32_t *)buf1;
1584 		if( buf1 == NULL)
1585 			return;
1586 
1587 		acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READ);
1588 		pwbuffer = arcmsr_get_iop_wqbuffer(acb);
1589 		iop_data = (u_int32_t *)pwbuffer->data;
1590 		while((acb->wqbuf_firstindex != acb->wqbuf_lastindex)
1591 			&& (allxfer_len < 124)) {
1592 			pQbuffer = &acb->wqbuffer[acb->wqbuf_firstindex];
1593 			*buf1 = *pQbuffer;
1594 			acb->wqbuf_firstindex++;
1595 			acb->wqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
1596 			buf1++;
1597 			allxfer_len++;
1598 		}
1599 		pwbuffer->data_len = allxfer_len;
1600 		data_len = allxfer_len;
1601 		buf1 = (u_int8_t *)buf2;
1602 		while(data_len >= 4)
1603 		{
1604 			*iop_data++ = *buf2++;
1605 			data_len -= 4;
1606 		}
1607 		if(data_len)
1608 			*iop_data = *buf2;
1609 		free( buf1, M_DEVBUF);
1610 		arcmsr_iop_message_wrote(acb);
1611 	}
1612 }
1613 /*
1614 **********************************************************************
1615 **********************************************************************
1616 */
1617 static void arcmsr_Write_data_2iop_wqbuffer(struct AdapterControlBlock *acb)
1618 {
1619 	u_int8_t *pQbuffer;
1620 	struct QBUFFER *pwbuffer;
1621 	u_int8_t *iop_data;
1622 	int32_t allxfer_len=0;
1623 
1624 	if(acb->adapter_type >= ACB_ADAPTER_TYPE_B) {
1625 		arcmsr_Write_data_2iop_wqbuffer_D(acb);
1626 		return;
1627 	}
1628 	if(acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READ) {
1629 		acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READ);
1630 		pwbuffer = arcmsr_get_iop_wqbuffer(acb);
1631 		iop_data = (u_int8_t *)pwbuffer->data;
1632 		while((acb->wqbuf_firstindex != acb->wqbuf_lastindex)
1633 			&& (allxfer_len < 124)) {
1634 			pQbuffer = &acb->wqbuffer[acb->wqbuf_firstindex];
1635 			*iop_data = *pQbuffer;
1636 			acb->wqbuf_firstindex++;
1637 			acb->wqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
1638 			iop_data++;
1639 			allxfer_len++;
1640 		}
1641 		pwbuffer->data_len = allxfer_len;
1642 		arcmsr_iop_message_wrote(acb);
1643 	}
1644 }
1645 /*
1646 **************************************************************************
1647 **************************************************************************
1648 */
1649 static void arcmsr_iop2drv_data_read_handle(struct AdapterControlBlock *acb)
1650 {
1651 	ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
1652 	acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_READ;
1653 	/*
1654 	*****************************************************************
1655 	**   check if there are any mail packages from user space program
1656 	**   in my post bag, now is the time to send them into Areca's firmware
1657 	*****************************************************************
1658 	*/
1659 	if(acb->wqbuf_firstindex != acb->wqbuf_lastindex) {
1660 		arcmsr_Write_data_2iop_wqbuffer(acb);
1661 	}
1662 	if(acb->wqbuf_firstindex == acb->wqbuf_lastindex) {
1663 		acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_CLEARED;
1664 	}
1665 	ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
1666 }
1667 /*
1668 **************************************************************************
1669 **************************************************************************
1670 */
1671 static void arcmsr_rescanLun_cb(struct cam_periph *periph, union ccb *ccb)
1672 {
1673 /*
1674 	if (ccb->ccb_h.status != CAM_REQ_CMP)
1675 		printf("arcmsr_rescanLun_cb: Rescan Target=%x, lun=%x,"
1676 			"failure status=%x\n", ccb->ccb_h.target_id,
1677 			ccb->ccb_h.target_lun, ccb->ccb_h.status);
1678 	else
1679 		printf("arcmsr_rescanLun_cb: Rescan lun successfully!\n");
1680 */
1681 	xpt_free_path(ccb->ccb_h.path);
1682 	xpt_free_ccb(ccb);
1683 }
1684 
1685 static void	arcmsr_rescan_lun(struct AdapterControlBlock *acb, int target, int lun)
1686 {
1687 	struct cam_path     *path;
1688 	union ccb           *ccb;
1689 
1690 	if ((ccb = (union ccb *)xpt_alloc_ccb_nowait()) == NULL)
1691 		return;
1692 	if (xpt_create_path(&path, NULL, cam_sim_path(acb->psim), target, lun) != CAM_REQ_CMP)
1693 	{
1694 		xpt_free_ccb(ccb);
1695 		return;
1696 	}
1697 /*	printf("arcmsr_rescan_lun: Rescan Target=%x, Lun=%x\n", target, lun); */
1698 	xpt_setup_ccb(&ccb->ccb_h, path, 5);
1699 	ccb->ccb_h.func_code = XPT_SCAN_LUN;
1700 	ccb->ccb_h.cbfcnp = arcmsr_rescanLun_cb;
1701 	ccb->crcn.flags = CAM_FLAG_NONE;
1702 	xpt_action(ccb);
1703 }
1704 
1705 static void arcmsr_abort_dr_ccbs(struct AdapterControlBlock *acb, int target, int lun)
1706 {
1707 	struct CommandControlBlock *srb;
1708 	u_int32_t intmask_org;
1709 	int i;
1710 
1711 	/* disable all outbound interrupts */
1712 	intmask_org = arcmsr_disable_allintr(acb);
1713 	for (i = 0; i < ARCMSR_MAX_FREESRB_NUM; i++)
1714 	{
1715 		srb = acb->psrb_pool[i];
1716 		if (srb->srb_state == ARCMSR_SRB_START)
1717 		{
1718 			if((target == srb->pccb->ccb_h.target_id) && (lun == srb->pccb->ccb_h.target_lun))
1719 			{
1720 				srb->srb_state = ARCMSR_SRB_ABORTED;
1721 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
1722 				arcmsr_srb_complete(srb, 1);
1723 				printf("arcmsr%d: abort scsi id %d lun %d srb=%p \n", acb->pci_unit, target, lun, srb);
1724 			}
1725 		}
1726 	}
1727 	/* enable outbound Post Queue, outbound doorbell Interrupt */
1728 	arcmsr_enable_allintr(acb, intmask_org);
1729 }
1730 /*
1731 **************************************************************************
1732 **************************************************************************
1733 */
1734 static void arcmsr_dr_handle(struct AdapterControlBlock *acb) {
1735 	u_int32_t	devicemap;
1736 	u_int32_t	target, lun;
1737 	u_int32_t	deviceMapCurrent[4]={0};
1738 	u_int8_t	*pDevMap;
1739 
1740 	switch (acb->adapter_type) {
1741 	case ACB_ADAPTER_TYPE_A:
1742 		devicemap = offsetof(struct HBA_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1743 		for (target = 0; target < 4; target++)
1744 		{
1745 			deviceMapCurrent[target]=bus_space_read_4(acb->btag[0], acb->bhandle[0],  devicemap);
1746 			devicemap += 4;
1747 		}
1748 		break;
1749 
1750 	case ACB_ADAPTER_TYPE_B:
1751 		devicemap = offsetof(struct HBB_RWBUFFER, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1752 		for (target = 0; target < 4; target++)
1753 		{
1754 			deviceMapCurrent[target]=bus_space_read_4(acb->btag[1], acb->bhandle[1],  devicemap);
1755 			devicemap += 4;
1756 		}
1757 		break;
1758 
1759 	case ACB_ADAPTER_TYPE_C:
1760 		devicemap = offsetof(struct HBC_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1761 		for (target = 0; target < 4; target++)
1762 		{
1763 			deviceMapCurrent[target]=bus_space_read_4(acb->btag[0], acb->bhandle[0],  devicemap);
1764 			devicemap += 4;
1765 		}
1766 		break;
1767 	case ACB_ADAPTER_TYPE_D:
1768 		devicemap = offsetof(struct HBD_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1769 		for (target = 0; target < 4; target++)
1770 		{
1771 			deviceMapCurrent[target]=bus_space_read_4(acb->btag[0], acb->bhandle[0],  devicemap);
1772 			devicemap += 4;
1773 		}
1774 		break;
1775 	case ACB_ADAPTER_TYPE_E:
1776 		devicemap = offsetof(struct HBE_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1777 		for (target = 0; target < 4; target++)
1778 		{
1779 			deviceMapCurrent[target]=bus_space_read_4(acb->btag[0], acb->bhandle[0],  devicemap);
1780 			devicemap += 4;
1781 		}
1782 		break;
1783 	case ACB_ADAPTER_TYPE_F:
1784 		devicemap = ARCMSR_FW_DEVMAP_OFFSET;
1785 		for (target = 0; target < 4; target++)
1786 		{
1787 			deviceMapCurrent[target] = acb->msgcode_rwbuffer[devicemap];
1788 			devicemap += 1;
1789 		}
1790 		break;
1791 	}
1792 
1793 	if(acb->acb_flags & ACB_F_BUS_HANG_ON)
1794 	{
1795 		acb->acb_flags &= ~ACB_F_BUS_HANG_ON;
1796 	}
1797 	/*
1798 	** adapter posted CONFIG message
1799 	** copy the new map, note if there are differences with the current map
1800 	*/
1801 	pDevMap = (u_int8_t *)&deviceMapCurrent[0];
1802 	for (target = 0; target < ARCMSR_MAX_TARGETID - 1; target++)
1803 	{
1804 		if (*pDevMap != acb->device_map[target])
1805 		{
1806 			u_int8_t difference, bit_check;
1807 
1808 			difference = *pDevMap ^ acb->device_map[target];
1809 			for(lun=0; lun < ARCMSR_MAX_TARGETLUN; lun++)
1810 			{
1811 				bit_check = (1 << lun);		/*check bit from 0....31*/
1812 				if(difference & bit_check)
1813 				{
1814 					if(acb->device_map[target] & bit_check)
1815 					{/* unit departed */
1816 						printf("arcmsr_dr_handle: Target=%x, lun=%x, GONE!!!\n",target,lun);
1817 						arcmsr_abort_dr_ccbs(acb, target, lun);
1818 						arcmsr_rescan_lun(acb, target, lun);
1819 						acb->devstate[target][lun] = ARECA_RAID_GONE;
1820 					}
1821 					else
1822 					{/* unit arrived */
1823 						printf("arcmsr_dr_handle: Target=%x, lun=%x, Plug-IN!!!\n",target,lun);
1824 						arcmsr_rescan_lun(acb, target, lun);
1825 						acb->devstate[target][lun] = ARECA_RAID_GOOD;
1826 					}
1827 				}
1828 			}
1829 /*			printf("arcmsr_dr_handle: acb->device_map[%x]=0x%x, deviceMapCurrent[%x]=%x\n",target,acb->device_map[target],target,*pDevMap); */
1830 			acb->device_map[target] = *pDevMap;
1831 		}
1832 		pDevMap++;
1833 	}
1834 }
1835 /*
1836 **************************************************************************
1837 **************************************************************************
1838 */
1839 static void arcmsr_hba_message_isr(struct AdapterControlBlock *acb) {
1840 	u_int32_t outbound_message;
1841 
1842 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, ARCMSR_MU_OUTBOUND_MESSAGE0_INT);
1843 	outbound_message = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[0]);
1844 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1845 		arcmsr_dr_handle( acb );
1846 }
1847 /*
1848 **************************************************************************
1849 **************************************************************************
1850 */
1851 static void arcmsr_hbb_message_isr(struct AdapterControlBlock *acb) {
1852 	u_int32_t outbound_message;
1853 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1854 
1855 	/* clear interrupts */
1856 	WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_MESSAGE_INT_CLEAR_PATTERN);
1857 	outbound_message = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[0]);
1858 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1859 		arcmsr_dr_handle( acb );
1860 }
1861 /*
1862 **************************************************************************
1863 **************************************************************************
1864 */
1865 static void arcmsr_hbc_message_isr(struct AdapterControlBlock *acb) {
1866 	u_int32_t outbound_message;
1867 
1868 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, outbound_doorbell_clear, ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR);
1869 	outbound_message = CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[0]);
1870 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1871 		arcmsr_dr_handle( acb );
1872 }
1873 /*
1874 **************************************************************************
1875 **************************************************************************
1876 */
1877 static void arcmsr_hbd_message_isr(struct AdapterControlBlock *acb) {
1878 	u_int32_t outbound_message;
1879 
1880 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE_CLEAR);
1881 	outbound_message = CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[0]);
1882 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1883 		arcmsr_dr_handle( acb );
1884 }
1885 /*
1886 **************************************************************************
1887 **************************************************************************
1888 */
1889 static void arcmsr_hbe_message_isr(struct AdapterControlBlock *acb) {
1890 	u_int32_t outbound_message;
1891 
1892 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_status, 0);
1893 	if (acb->adapter_type == ACB_ADAPTER_TYPE_E)
1894 		outbound_message = CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[0]);
1895 	else
1896 		outbound_message = acb->msgcode_rwbuffer[0];
1897 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1898 		arcmsr_dr_handle( acb );
1899 }
1900 /*
1901 **************************************************************************
1902 **************************************************************************
1903 */
1904 static void arcmsr_hba_doorbell_isr(struct AdapterControlBlock *acb)
1905 {
1906 	u_int32_t doorbell_status;
1907 
1908 	/*
1909 	*******************************************************************
1910 	**  Maybe here we need to check wrqbuffer_lock is lock or not
1911 	**  DOORBELL: din! don!
1912 	**  check if there are any mail need to pack from firmware
1913 	*******************************************************************
1914 	*/
1915 	doorbell_status = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_doorbell);
1916 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_doorbell, doorbell_status); /* clear doorbell interrupt */
1917 	if(doorbell_status & ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK) {
1918 		arcmsr_iop2drv_data_wrote_handle(acb);
1919 	}
1920 	if(doorbell_status & ARCMSR_OUTBOUND_IOP331_DATA_READ_OK) {
1921 		arcmsr_iop2drv_data_read_handle(acb);
1922 	}
1923 }
1924 /*
1925 **************************************************************************
1926 **************************************************************************
1927 */
1928 static void arcmsr_hbc_doorbell_isr(struct AdapterControlBlock *acb)
1929 {
1930 	u_int32_t doorbell_status;
1931 
1932 	/*
1933 	*******************************************************************
1934 	**  Maybe here we need to check wrqbuffer_lock is lock or not
1935 	**  DOORBELL: din! don!
1936 	**  check if there are any mail need to pack from firmware
1937 	*******************************************************************
1938 	*/
1939 	doorbell_status = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_doorbell);
1940 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, outbound_doorbell_clear, doorbell_status); /* clear doorbell interrupt */
1941 	if(doorbell_status & ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK) {
1942 		arcmsr_iop2drv_data_wrote_handle(acb);
1943 	}
1944 	if(doorbell_status & ARCMSR_HBCMU_IOP2DRV_DATA_READ_OK) {
1945 		arcmsr_iop2drv_data_read_handle(acb);
1946 	}
1947 	if(doorbell_status & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
1948 		arcmsr_hbc_message_isr(acb);    /* messenger of "driver to iop commands" */
1949 	}
1950 }
1951 /*
1952 **************************************************************************
1953 **************************************************************************
1954 */
1955 static void arcmsr_hbd_doorbell_isr(struct AdapterControlBlock *acb)
1956 {
1957 	u_int32_t doorbell_status;
1958 
1959 	/*
1960 	*******************************************************************
1961 	**  Maybe here we need to check wrqbuffer_lock is lock or not
1962 	**  DOORBELL: din! don!
1963 	**  check if there are any mail need to pack from firmware
1964 	*******************************************************************
1965 	*/
1966 	doorbell_status = CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBDMU_F0_DOORBELL_CAUSE;
1967 	if(doorbell_status)
1968 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, doorbell_status); /* clear doorbell interrupt */
1969 	while( doorbell_status & ARCMSR_HBDMU_F0_DOORBELL_CAUSE ) {
1970 		if(doorbell_status & ARCMSR_HBDMU_IOP2DRV_DATA_WRITE_OK) {
1971 			arcmsr_iop2drv_data_wrote_handle(acb);
1972 		}
1973 		if(doorbell_status & ARCMSR_HBDMU_IOP2DRV_DATA_READ_OK) {
1974 			arcmsr_iop2drv_data_read_handle(acb);
1975 		}
1976 		if(doorbell_status & ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE) {
1977 			arcmsr_hbd_message_isr(acb);    /* messenger of "driver to iop commands" */
1978 		}
1979 		doorbell_status = CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBDMU_F0_DOORBELL_CAUSE;
1980 		if(doorbell_status)
1981 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, doorbell_status); /* clear doorbell interrupt */
1982 	}
1983 }
1984 /*
1985 **************************************************************************
1986 **************************************************************************
1987 */
1988 static void arcmsr_hbe_doorbell_isr(struct AdapterControlBlock *acb)
1989 {
1990 	u_int32_t doorbell_status, in_doorbell;
1991 
1992 	/*
1993 	*******************************************************************
1994 	**  Maybe here we need to check wrqbuffer_lock is lock or not
1995 	**  DOORBELL: din! don!
1996 	**  check if there are any mail need to pack from firmware
1997 	*******************************************************************
1998 	*/
1999 	in_doorbell = CHIP_REG_READ32(HBE_MessageUnit, 0, iobound_doorbell);
2000 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_status, 0); /* clear doorbell interrupt */
2001 	doorbell_status = in_doorbell ^ acb->in_doorbell;
2002 	if(doorbell_status & ARCMSR_HBEMU_IOP2DRV_DATA_WRITE_OK) {
2003 		arcmsr_iop2drv_data_wrote_handle(acb);
2004 	}
2005 	if(doorbell_status & ARCMSR_HBEMU_IOP2DRV_DATA_READ_OK) {
2006 		arcmsr_iop2drv_data_read_handle(acb);
2007 	}
2008 	if(doorbell_status & ARCMSR_HBEMU_IOP2DRV_MESSAGE_CMD_DONE) {
2009 		arcmsr_hbe_message_isr(acb);    /* messenger of "driver to iop commands" */
2010 	}
2011 	acb->in_doorbell = in_doorbell;
2012 }
2013 /*
2014 **************************************************************************
2015 **************************************************************************
2016 */
2017 static void arcmsr_hbf_doorbell_isr(struct AdapterControlBlock *acb)
2018 {
2019 	u_int32_t doorbell_status, in_doorbell;
2020 
2021 	/*
2022 	*******************************************************************
2023 	**  Maybe here we need to check wrqbuffer_lock is lock or not
2024 	**  DOORBELL: din! don!
2025 	**  check if there are any mail need to pack from firmware
2026 	*******************************************************************
2027 	*/
2028 	while(1) {
2029 		in_doorbell = CHIP_REG_READ32(HBE_MessageUnit, 0, iobound_doorbell);
2030 		if ((in_doorbell != 0) && (in_doorbell != 0xFFFFFFFF))
2031 			break;
2032 	}
2033 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_status, 0); /* clear doorbell interrupt */
2034 	doorbell_status = in_doorbell ^ acb->in_doorbell;
2035 	if(doorbell_status & ARCMSR_HBEMU_IOP2DRV_DATA_WRITE_OK) {
2036 		arcmsr_iop2drv_data_wrote_handle(acb);
2037 	}
2038 	if(doorbell_status & ARCMSR_HBEMU_IOP2DRV_DATA_READ_OK) {
2039 		arcmsr_iop2drv_data_read_handle(acb);
2040 	}
2041 	if(doorbell_status & ARCMSR_HBEMU_IOP2DRV_MESSAGE_CMD_DONE) {
2042 		arcmsr_hbe_message_isr(acb);    /* messenger of "driver to iop commands" */
2043 	}
2044 	acb->in_doorbell = in_doorbell;
2045 }
2046 /*
2047 **************************************************************************
2048 **************************************************************************
2049 */
2050 static void arcmsr_hba_postqueue_isr(struct AdapterControlBlock *acb)
2051 {
2052 	u_int32_t flag_srb;
2053 	u_int16_t error;
2054 
2055 	/*
2056 	*****************************************************************************
2057 	**               areca cdb command done
2058 	*****************************************************************************
2059 	*/
2060 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap,
2061 		BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
2062 	while((flag_srb = CHIP_REG_READ32(HBA_MessageUnit,
2063 		0, outbound_queueport)) != 0xFFFFFFFF) {
2064 		/* check if command done with no error*/
2065 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0) ? TRUE : FALSE;
2066 		arcmsr_drain_donequeue(acb, flag_srb, error);
2067 	}	/*drain reply FIFO*/
2068 }
2069 /*
2070 **************************************************************************
2071 **************************************************************************
2072 */
2073 static void arcmsr_hbb_postqueue_isr(struct AdapterControlBlock *acb)
2074 {
2075 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
2076 	u_int32_t flag_srb;
2077 	int index;
2078 	u_int16_t error;
2079 
2080 	/*
2081 	*****************************************************************************
2082 	**               areca cdb command done
2083 	*****************************************************************************
2084 	*/
2085 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap,
2086 		BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
2087 	index = phbbmu->doneq_index;
2088 	while((flag_srb = phbbmu->done_qbuffer[index]) != 0) {
2089 		phbbmu->done_qbuffer[index] = 0;
2090 		index++;
2091 		index %= ARCMSR_MAX_HBB_POSTQUEUE;     /*if last index number set it to 0 */
2092 		phbbmu->doneq_index = index;
2093 		/* check if command done with no error*/
2094 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0)?TRUE:FALSE;
2095 		arcmsr_drain_donequeue(acb, flag_srb, error);
2096 	}	/*drain reply FIFO*/
2097 }
2098 /*
2099 **************************************************************************
2100 **************************************************************************
2101 */
2102 static void arcmsr_hbc_postqueue_isr(struct AdapterControlBlock *acb)
2103 {
2104 	u_int32_t flag_srb,throttling = 0;
2105 	u_int16_t error;
2106 
2107 	/*
2108 	*****************************************************************************
2109 	**               areca cdb command done
2110 	*****************************************************************************
2111 	*/
2112 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
2113 	do {
2114 		flag_srb = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_queueport_low);
2115 		if (flag_srb == 0xFFFFFFFF)
2116 			break;
2117 		/* check if command done with no error*/
2118 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1)?TRUE:FALSE;
2119 		arcmsr_drain_donequeue(acb, flag_srb, error);
2120 		throttling++;
2121 		if(throttling == ARCMSR_HBC_ISR_THROTTLING_LEVEL) {
2122 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_POSTQUEUE_THROTTLING);
2123 			throttling = 0;
2124 		}
2125 	} while(CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR);
2126 }
2127 /*
2128 **********************************************************************
2129 **
2130 **********************************************************************
2131 */
2132 static uint16_t arcmsr_get_doneq_index(struct HBD_MessageUnit0 *phbdmu)
2133 {
2134 	uint16_t doneq_index, index_stripped;
2135 
2136 	doneq_index = phbdmu->doneq_index;
2137 	if (doneq_index & 0x4000) {
2138 		index_stripped = doneq_index & 0xFF;
2139 		index_stripped += 1;
2140 		index_stripped %= ARCMSR_MAX_HBD_POSTQUEUE;
2141 		phbdmu->doneq_index = index_stripped ?
2142 		    (index_stripped | 0x4000) : index_stripped;
2143 	} else {
2144 		index_stripped = doneq_index;
2145 		index_stripped += 1;
2146 		index_stripped %= ARCMSR_MAX_HBD_POSTQUEUE;
2147 		phbdmu->doneq_index = index_stripped ?
2148 		    index_stripped : (index_stripped | 0x4000);
2149 	}
2150 	return (phbdmu->doneq_index);
2151 }
2152 /*
2153 **************************************************************************
2154 **************************************************************************
2155 */
2156 static void arcmsr_hbd_postqueue_isr(struct AdapterControlBlock *acb)
2157 {
2158 	struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
2159 	u_int32_t outbound_write_pointer;
2160 	u_int32_t addressLow;
2161 	uint16_t doneq_index;
2162 	u_int16_t error;
2163 	/*
2164 	*****************************************************************************
2165 	**               areca cdb command done
2166 	*****************************************************************************
2167 	*/
2168 	if((CHIP_REG_READ32(HBD_MessageUnit, 0, outboundlist_interrupt_cause) &
2169 		ARCMSR_HBDMU_OUTBOUND_LIST_INTERRUPT) == 0)
2170 		return;
2171 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap,
2172 		BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
2173 	outbound_write_pointer = phbdmu->done_qbuffer[0].addressLow;
2174 	doneq_index = phbdmu->doneq_index;
2175 	while ((doneq_index & 0xFF) != (outbound_write_pointer & 0xFF)) {
2176 		doneq_index = arcmsr_get_doneq_index(phbdmu);
2177 		addressLow = phbdmu->done_qbuffer[(doneq_index & 0xFF)+1].addressLow;
2178 		error = (addressLow & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1) ? TRUE : FALSE;
2179 		arcmsr_drain_donequeue(acb, addressLow, error); /*Check if command done with no error */
2180 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, outboundlist_read_pointer, doneq_index);
2181 		outbound_write_pointer = phbdmu->done_qbuffer[0].addressLow;
2182 	}
2183 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, outboundlist_interrupt_cause, ARCMSR_HBDMU_OUTBOUND_LIST_INTERRUPT_CLEAR);
2184 	CHIP_REG_READ32(HBD_MessageUnit, 0, outboundlist_interrupt_cause); /*Dummy ioread32 to force pci flush */
2185 }
2186 /*
2187 **************************************************************************
2188 **************************************************************************
2189 */
2190 static void arcmsr_hbe_postqueue_isr(struct AdapterControlBlock *acb)
2191 {
2192 	u_int16_t error;
2193 	uint32_t doneq_index;
2194 	uint16_t cmdSMID;
2195 
2196 	/*
2197 	*****************************************************************************
2198 	**               areca cdb command done
2199 	*****************************************************************************
2200 	*/
2201 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
2202 	doneq_index = acb->doneq_index;
2203 	while ((CHIP_REG_READ32(HBE_MessageUnit, 0, reply_post_producer_index) & 0xFFFF) != doneq_index) {
2204 		cmdSMID = acb->pCompletionQ[doneq_index].cmdSMID;
2205 		error = (acb->pCompletionQ[doneq_index].cmdFlag & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1) ? TRUE : FALSE;
2206 		arcmsr_drain_donequeue(acb, (u_int32_t)cmdSMID, error);
2207 		doneq_index++;
2208 		if (doneq_index >= acb->completionQ_entry)
2209 			doneq_index = 0;
2210 	}
2211 	acb->doneq_index = doneq_index;
2212 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, reply_post_consumer_index, doneq_index);
2213 }
2214 
2215 static void arcmsr_hbf_postqueue_isr(struct AdapterControlBlock *acb)
2216 {
2217 	uint16_t error;
2218 	uint32_t doneq_index;
2219 	uint16_t cmdSMID;
2220 
2221 	/*
2222 	*****************************************************************************
2223 	**               areca cdb command done
2224 	*****************************************************************************
2225 	*/
2226 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
2227 	doneq_index = acb->doneq_index;
2228 	while (1) {
2229 		cmdSMID = acb->pCompletionQ[doneq_index].cmdSMID;
2230 		if (cmdSMID == 0xffff)
2231 			break;
2232 		error = (acb->pCompletionQ[doneq_index].cmdFlag & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1) ? TRUE : FALSE;
2233 		arcmsr_drain_donequeue(acb, (u_int32_t)cmdSMID, error);
2234 		acb->pCompletionQ[doneq_index].cmdSMID = 0xffff;
2235 		doneq_index++;
2236 		if (doneq_index >= acb->completionQ_entry)
2237 			doneq_index = 0;
2238 	}
2239 	acb->doneq_index = doneq_index;
2240 	CHIP_REG_WRITE32(HBF_MessageUnit, 0, reply_post_consumer_index, doneq_index);
2241 }
2242 
2243 /*
2244 **********************************************************************
2245 **********************************************************************
2246 */
2247 static void arcmsr_handle_hba_isr( struct AdapterControlBlock *acb)
2248 {
2249 	u_int32_t outbound_intStatus;
2250 	/*
2251 	*********************************************
2252 	**   check outbound intstatus
2253 	*********************************************
2254 	*/
2255 	outbound_intStatus = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intstatus) & acb->outbound_int_enable;
2256 	if(!outbound_intStatus) {
2257 		/*it must be share irq*/
2258 		return;
2259 	}
2260 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, outbound_intStatus); /*clear interrupt*/
2261 	/* MU doorbell interrupts*/
2262 	if(outbound_intStatus & ARCMSR_MU_OUTBOUND_DOORBELL_INT) {
2263 		arcmsr_hba_doorbell_isr(acb);
2264 	}
2265 	/* MU post queue interrupts*/
2266 	if(outbound_intStatus & ARCMSR_MU_OUTBOUND_POSTQUEUE_INT) {
2267 		arcmsr_hba_postqueue_isr(acb);
2268 	}
2269 	if(outbound_intStatus & ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
2270 		arcmsr_hba_message_isr(acb);
2271 	}
2272 }
2273 /*
2274 **********************************************************************
2275 **********************************************************************
2276 */
2277 static void arcmsr_handle_hbb_isr( struct AdapterControlBlock *acb)
2278 {
2279 	u_int32_t outbound_doorbell;
2280 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
2281 	/*
2282 	*********************************************
2283 	**   check outbound intstatus
2284 	*********************************************
2285 	*/
2286 	outbound_doorbell = READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell) & acb->outbound_int_enable;
2287 	if(!outbound_doorbell) {
2288 		/*it must be share irq*/
2289 		return;
2290 	}
2291 	WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ~outbound_doorbell); /* clear doorbell interrupt */
2292 	READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell);
2293 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_END_OF_INTERRUPT);
2294 	/* MU ioctl transfer doorbell interrupts*/
2295 	if(outbound_doorbell & ARCMSR_IOP2DRV_DATA_WRITE_OK) {
2296 		arcmsr_iop2drv_data_wrote_handle(acb);
2297 	}
2298 	if(outbound_doorbell & ARCMSR_IOP2DRV_DATA_READ_OK) {
2299 		arcmsr_iop2drv_data_read_handle(acb);
2300 	}
2301 	/* MU post queue interrupts*/
2302 	if(outbound_doorbell & ARCMSR_IOP2DRV_CDB_DONE) {
2303 		arcmsr_hbb_postqueue_isr(acb);
2304 	}
2305 	if(outbound_doorbell & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
2306 		arcmsr_hbb_message_isr(acb);
2307 	}
2308 }
2309 /*
2310 **********************************************************************
2311 **********************************************************************
2312 */
2313 static void arcmsr_handle_hbc_isr( struct AdapterControlBlock *acb)
2314 {
2315 	u_int32_t host_interrupt_status;
2316 	/*
2317 	*********************************************
2318 	**   check outbound intstatus
2319 	*********************************************
2320 	*/
2321 	host_interrupt_status = CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status) &
2322 		(ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR |
2323 		ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR);
2324 	if(!host_interrupt_status) {
2325 		/*it must be share irq*/
2326 		return;
2327 	}
2328 	do {
2329 		/* MU doorbell interrupts*/
2330 		if(host_interrupt_status & ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR) {
2331 			arcmsr_hbc_doorbell_isr(acb);
2332 		}
2333 		/* MU post queue interrupts*/
2334 		if(host_interrupt_status & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) {
2335 			arcmsr_hbc_postqueue_isr(acb);
2336 		}
2337 		host_interrupt_status = CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status);
2338 	} while (host_interrupt_status & (ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR | ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR));
2339 }
2340 /*
2341 **********************************************************************
2342 **********************************************************************
2343 */
2344 static void arcmsr_handle_hbd_isr( struct AdapterControlBlock *acb)
2345 {
2346 	u_int32_t host_interrupt_status;
2347 	u_int32_t intmask_org;
2348 	/*
2349 	*********************************************
2350 	**   check outbound intstatus
2351 	*********************************************
2352 	*/
2353 	host_interrupt_status = CHIP_REG_READ32(HBD_MessageUnit, 0, host_int_status) & acb->outbound_int_enable;
2354 	if(!(host_interrupt_status & ARCMSR_HBDMU_OUTBOUND_INT)) {
2355 		/*it must be share irq*/
2356 		return;
2357 	}
2358 	/* disable outbound interrupt */
2359 	intmask_org = CHIP_REG_READ32(HBD_MessageUnit, 0, pcief0_int_enable)	; /* disable outbound message0 int */
2360 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, pcief0_int_enable, ARCMSR_HBDMU_ALL_INT_DISABLE);
2361 	/* MU doorbell interrupts*/
2362 	if(host_interrupt_status & ARCMSR_HBDMU_OUTBOUND_DOORBELL_INT) {
2363 		arcmsr_hbd_doorbell_isr(acb);
2364 	}
2365 	/* MU post queue interrupts*/
2366 	if(host_interrupt_status & ARCMSR_HBDMU_OUTBOUND_POSTQUEUE_INT) {
2367 		arcmsr_hbd_postqueue_isr(acb);
2368 	}
2369 	/* enable all outbound interrupt */
2370 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, pcief0_int_enable, intmask_org | ARCMSR_HBDMU_ALL_INT_ENABLE);
2371 //	CHIP_REG_READ32(HBD_MessageUnit, 0, pcief0_int_enable);
2372 }
2373 /*
2374 **********************************************************************
2375 **********************************************************************
2376 */
2377 static void arcmsr_handle_hbe_isr( struct AdapterControlBlock *acb)
2378 {
2379 	u_int32_t host_interrupt_status;
2380 	/*
2381 	*********************************************
2382 	**   check outbound intstatus
2383 	*********************************************
2384 	*/
2385 	host_interrupt_status = CHIP_REG_READ32(HBE_MessageUnit, 0, host_int_status) &
2386 		(ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR |
2387 		ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR);
2388 	if(!host_interrupt_status) {
2389 		/*it must be share irq*/
2390 		return;
2391 	}
2392 	do {
2393 		/* MU doorbell interrupts*/
2394 		if(host_interrupt_status & ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR) {
2395 			arcmsr_hbe_doorbell_isr(acb);
2396 		}
2397 		/* MU post queue interrupts*/
2398 		if(host_interrupt_status & ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR) {
2399 			arcmsr_hbe_postqueue_isr(acb);
2400 		}
2401 		host_interrupt_status = CHIP_REG_READ32(HBE_MessageUnit, 0, host_int_status);
2402 	} while (host_interrupt_status & (ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR | ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR));
2403 }
2404 
2405 static void arcmsr_handle_hbf_isr( struct AdapterControlBlock *acb)
2406 {
2407 	u_int32_t host_interrupt_status;
2408 	/*
2409 	*********************************************
2410 	**   check outbound intstatus
2411 	*********************************************
2412 	*/
2413 	host_interrupt_status = CHIP_REG_READ32(HBF_MessageUnit, 0, host_int_status) &
2414 		(ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR |
2415 		ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR);
2416 	if(!host_interrupt_status) {
2417 		/*it must be share irq*/
2418 		return;
2419 	}
2420 	do {
2421 		/* MU doorbell interrupts*/
2422 		if(host_interrupt_status & ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR) {
2423 			arcmsr_hbf_doorbell_isr(acb);
2424 		}
2425 		/* MU post queue interrupts*/
2426 		if(host_interrupt_status & ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR) {
2427 			arcmsr_hbf_postqueue_isr(acb);
2428 		}
2429 		host_interrupt_status = CHIP_REG_READ32(HBF_MessageUnit, 0, host_int_status);
2430 	} while (host_interrupt_status & (ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR | ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR));
2431 }
2432 /*
2433 ******************************************************************************
2434 ******************************************************************************
2435 */
2436 static void arcmsr_interrupt(struct AdapterControlBlock *acb)
2437 {
2438 	switch (acb->adapter_type) {
2439 	case ACB_ADAPTER_TYPE_A:
2440 		arcmsr_handle_hba_isr(acb);
2441 		break;
2442 	case ACB_ADAPTER_TYPE_B:
2443 		arcmsr_handle_hbb_isr(acb);
2444 		break;
2445 	case ACB_ADAPTER_TYPE_C:
2446 		arcmsr_handle_hbc_isr(acb);
2447 		break;
2448 	case ACB_ADAPTER_TYPE_D:
2449 		arcmsr_handle_hbd_isr(acb);
2450 		break;
2451 	case ACB_ADAPTER_TYPE_E:
2452 		arcmsr_handle_hbe_isr(acb);
2453 		break;
2454 	case ACB_ADAPTER_TYPE_F:
2455 		arcmsr_handle_hbf_isr(acb);
2456 		break;
2457 	default:
2458 		printf("arcmsr%d: interrupt service,"
2459 		" unknown adapter type =%d\n", acb->pci_unit, acb->adapter_type);
2460 		break;
2461 	}
2462 }
2463 /*
2464 **********************************************************************
2465 **********************************************************************
2466 */
2467 static void arcmsr_intr_handler(void *arg)
2468 {
2469 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *)arg;
2470 
2471 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
2472 	arcmsr_interrupt(acb);
2473 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
2474 }
2475 /*
2476 ******************************************************************************
2477 ******************************************************************************
2478 */
2479 static void	arcmsr_polling_devmap(void *arg)
2480 {
2481 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *)arg;
2482 	switch (acb->adapter_type) {
2483 	case ACB_ADAPTER_TYPE_A:
2484 		CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
2485 		break;
2486 
2487 	case ACB_ADAPTER_TYPE_B: {
2488 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
2489 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_GET_CONFIG);
2490 		}
2491 		break;
2492 
2493 	case ACB_ADAPTER_TYPE_C:
2494 		CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
2495 		CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
2496 		break;
2497 
2498 	case ACB_ADAPTER_TYPE_D:
2499 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
2500 		break;
2501 
2502 	case ACB_ADAPTER_TYPE_E:
2503 		CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
2504 		acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
2505 		CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
2506 		break;
2507 
2508 	case ACB_ADAPTER_TYPE_F: {
2509 		u_int32_t outMsg1 = CHIP_REG_READ32(HBF_MessageUnit, 0, outbound_msgaddr1);
2510 		if (!(outMsg1 & ARCMSR_HBFMU_MESSAGE_FIRMWARE_OK) ||
2511 			(outMsg1 & ARCMSR_HBFMU_MESSAGE_NO_VOLUME_CHANGE))
2512 			goto nxt6s;
2513 		CHIP_REG_WRITE32(HBF_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
2514 		acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
2515 		CHIP_REG_WRITE32(HBF_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
2516 		break;
2517 		}
2518 	}
2519 nxt6s:
2520 	if((acb->acb_flags & ACB_F_SCSISTOPADAPTER) == 0)
2521 	{
2522 		callout_reset(&acb->devmap_callout, 5 * hz, arcmsr_polling_devmap, acb);	/* polling per 5 seconds */
2523 	}
2524 }
2525 
2526 /*
2527 *******************************************************************************
2528 **
2529 *******************************************************************************
2530 */
2531 static void arcmsr_iop_parking(struct AdapterControlBlock *acb)
2532 {
2533 	u_int32_t intmask_org;
2534 
2535 	if(acb != NULL) {
2536 		/* stop adapter background rebuild */
2537 		if(acb->acb_flags & ACB_F_MSG_START_BGRB) {
2538 			intmask_org = arcmsr_disable_allintr(acb);
2539 			arcmsr_stop_adapter_bgrb(acb);
2540 			arcmsr_flush_adapter_cache(acb);
2541 			arcmsr_enable_allintr(acb, intmask_org);
2542 		}
2543 	}
2544 }
2545 /*
2546 ***********************************************************************
2547 **
2548 ************************************************************************
2549 */
2550 static u_int32_t arcmsr_iop_ioctlcmd(struct AdapterControlBlock *acb, u_int32_t ioctl_cmd, caddr_t arg)
2551 {
2552 	struct CMD_MESSAGE_FIELD *pcmdmessagefld;
2553 	u_int32_t retvalue = EINVAL;
2554 
2555 	pcmdmessagefld = (struct CMD_MESSAGE_FIELD *) arg;
2556 	if(memcmp(pcmdmessagefld->cmdmessage.Signature, "ARCMSR", 6)!=0) {
2557 		return retvalue;
2558 	}
2559 	ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2560 	switch(ioctl_cmd) {
2561 	case ARCMSR_MESSAGE_READ_RQBUFFER: {
2562 			u_int8_t *pQbuffer;
2563 			u_int8_t *ptmpQbuffer = pcmdmessagefld->messagedatabuffer;
2564 			u_int32_t allxfer_len=0;
2565 
2566 			while((acb->rqbuf_firstindex != acb->rqbuf_lastindex)
2567 				&& (allxfer_len < 1031)) {
2568 				/*copy READ QBUFFER to srb*/
2569 				pQbuffer = &acb->rqbuffer[acb->rqbuf_firstindex];
2570 				*ptmpQbuffer = *pQbuffer;
2571 				acb->rqbuf_firstindex++;
2572 				acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
2573 				/*if last index number set it to 0 */
2574 				ptmpQbuffer++;
2575 				allxfer_len++;
2576 			}
2577 			if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2578 				struct QBUFFER *prbuffer;
2579 
2580 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2581 				prbuffer = arcmsr_get_iop_rqbuffer(acb);
2582 				if(arcmsr_Read_iop_rqbuffer_data(acb, prbuffer) == 0)
2583 					acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
2584 			}
2585 			pcmdmessagefld->cmdmessage.Length = allxfer_len;
2586 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2587 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2588 		}
2589 		break;
2590 	case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
2591 			u_int32_t my_empty_len, user_len, wqbuf_firstindex, wqbuf_lastindex;
2592 			u_int8_t *pQbuffer;
2593 			u_int8_t *ptmpuserbuffer = pcmdmessagefld->messagedatabuffer;
2594 
2595 			user_len = pcmdmessagefld->cmdmessage.Length;
2596 			/*check if data xfer length of this request will overflow my array qbuffer */
2597 			wqbuf_lastindex = acb->wqbuf_lastindex;
2598 			wqbuf_firstindex = acb->wqbuf_firstindex;
2599 			if(wqbuf_lastindex != wqbuf_firstindex) {
2600 				arcmsr_Write_data_2iop_wqbuffer(acb);
2601 				pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_ERROR;
2602 			} else {
2603 				my_empty_len = (wqbuf_firstindex - wqbuf_lastindex - 1) &
2604 					(ARCMSR_MAX_QBUFFER - 1);
2605 				if(my_empty_len >= user_len) {
2606 					while(user_len > 0) {
2607 						/*copy srb data to wqbuffer*/
2608 						pQbuffer = &acb->wqbuffer[acb->wqbuf_lastindex];
2609 						*pQbuffer = *ptmpuserbuffer;
2610 						acb->wqbuf_lastindex++;
2611 						acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
2612 						/*if last index number set it to 0 */
2613 						ptmpuserbuffer++;
2614 						user_len--;
2615 					}
2616 					/*post fist Qbuffer*/
2617 					if(acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
2618 						acb->acb_flags &= ~ACB_F_MESSAGE_WQBUFFER_CLEARED;
2619 						arcmsr_Write_data_2iop_wqbuffer(acb);
2620 					}
2621 					pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2622 				} else {
2623 					pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_ERROR;
2624 				}
2625 			}
2626 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2627 		}
2628 		break;
2629 	case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
2630 			u_int8_t *pQbuffer = acb->rqbuffer;
2631 
2632 			if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2633 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2634 				arcmsr_iop_message_read(acb);
2635 				/*signature, let IOP know data has been readed */
2636 			}
2637 			acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
2638 			acb->rqbuf_firstindex = 0;
2639 			acb->rqbuf_lastindex = 0;
2640 			memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
2641 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2642 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2643 		}
2644 		break;
2645 	case ARCMSR_MESSAGE_CLEAR_WQBUFFER:
2646 		{
2647 			u_int8_t *pQbuffer = acb->wqbuffer;
2648 
2649 			if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2650 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2651 				arcmsr_iop_message_read(acb);
2652 				/*signature, let IOP know data has been readed */
2653 			}
2654 			acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED|ACB_F_MESSAGE_WQBUFFER_READ);
2655 			acb->wqbuf_firstindex = 0;
2656 			acb->wqbuf_lastindex = 0;
2657 			memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
2658 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2659 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2660 		}
2661 		break;
2662 	case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: {
2663 			u_int8_t *pQbuffer;
2664 
2665 			if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2666 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2667 				arcmsr_iop_message_read(acb);
2668 				/*signature, let IOP know data has been readed */
2669 			}
2670 			acb->acb_flags  |= (ACB_F_MESSAGE_WQBUFFER_CLEARED
2671 					|ACB_F_MESSAGE_RQBUFFER_CLEARED
2672 					|ACB_F_MESSAGE_WQBUFFER_READ);
2673 			acb->rqbuf_firstindex = 0;
2674 			acb->rqbuf_lastindex = 0;
2675 			acb->wqbuf_firstindex = 0;
2676 			acb->wqbuf_lastindex = 0;
2677 			pQbuffer = acb->rqbuffer;
2678 			memset(pQbuffer, 0, sizeof(struct QBUFFER));
2679 			pQbuffer = acb->wqbuffer;
2680 			memset(pQbuffer, 0, sizeof(struct QBUFFER));
2681 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2682 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2683 		}
2684 		break;
2685 	case ARCMSR_MESSAGE_REQUEST_RETURNCODE_3F: {
2686 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_3F;
2687 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2688 		}
2689 		break;
2690 	case ARCMSR_MESSAGE_SAY_HELLO: {
2691 			u_int8_t *hello_string = "Hello! I am ARCMSR";
2692 			u_int8_t *puserbuffer = (u_int8_t *)pcmdmessagefld->messagedatabuffer;
2693 
2694 			if(memcpy(puserbuffer, hello_string, (int16_t)strlen(hello_string))) {
2695 				pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_ERROR;
2696 				ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2697 				return ENOIOCTL;
2698 			}
2699 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2700 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2701 		}
2702 		break;
2703 	case ARCMSR_MESSAGE_SAY_GOODBYE: {
2704 			arcmsr_iop_parking(acb);
2705 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2706 		}
2707 		break;
2708 	case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE: {
2709 			arcmsr_flush_adapter_cache(acb);
2710 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2711 		}
2712 		break;
2713 	}
2714 	ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2715 	return (retvalue);
2716 }
2717 /*
2718 **************************************************************************
2719 **************************************************************************
2720 */
2721 static void arcmsr_free_srb(struct CommandControlBlock *srb)
2722 {
2723 	struct AdapterControlBlock	*acb;
2724 
2725 	acb = srb->acb;
2726 	ARCMSR_LOCK_ACQUIRE(&acb->srb_lock);
2727 	srb->srb_state = ARCMSR_SRB_DONE;
2728 	srb->srb_flags = 0;
2729 	acb->srbworkingQ[acb->workingsrb_doneindex] = srb;
2730 	acb->workingsrb_doneindex++;
2731 	acb->workingsrb_doneindex %= ARCMSR_MAX_FREESRB_NUM;
2732 	ARCMSR_LOCK_RELEASE(&acb->srb_lock);
2733 }
2734 /*
2735 **************************************************************************
2736 **************************************************************************
2737 */
2738 static struct CommandControlBlock *arcmsr_get_freesrb(struct AdapterControlBlock *acb)
2739 {
2740 	struct CommandControlBlock *srb = NULL;
2741 	u_int32_t workingsrb_startindex, workingsrb_doneindex;
2742 
2743 	ARCMSR_LOCK_ACQUIRE(&acb->srb_lock);
2744 	workingsrb_doneindex = acb->workingsrb_doneindex;
2745 	workingsrb_startindex = acb->workingsrb_startindex;
2746 	srb = acb->srbworkingQ[workingsrb_startindex];
2747 	workingsrb_startindex++;
2748 	workingsrb_startindex %= ARCMSR_MAX_FREESRB_NUM;
2749 	if(workingsrb_doneindex != workingsrb_startindex) {
2750 		acb->workingsrb_startindex = workingsrb_startindex;
2751 	} else {
2752 		srb = NULL;
2753 	}
2754 	ARCMSR_LOCK_RELEASE(&acb->srb_lock);
2755 	return(srb);
2756 }
2757 /*
2758 **************************************************************************
2759 **************************************************************************
2760 */
2761 static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, union ccb *pccb)
2762 {
2763 	struct CMD_MESSAGE_FIELD *pcmdmessagefld;
2764 	int retvalue = 0, transfer_len = 0;
2765 	char *buffer;
2766 	uint8_t *ptr = scsiio_cdb_ptr(&pccb->csio);
2767 	u_int32_t controlcode = (u_int32_t ) ptr[5] << 24 |
2768 				(u_int32_t ) ptr[6] << 16 |
2769 				(u_int32_t ) ptr[7] << 8  |
2770 				(u_int32_t ) ptr[8];
2771 					/* 4 bytes: Areca io control code */
2772 	if ((pccb->ccb_h.flags & CAM_DATA_MASK) == CAM_DATA_VADDR) {
2773 		buffer = pccb->csio.data_ptr;
2774 		transfer_len = pccb->csio.dxfer_len;
2775 	} else {
2776 		retvalue = ARCMSR_MESSAGE_FAIL;
2777 		goto message_out;
2778 	}
2779 	if (transfer_len > sizeof(struct CMD_MESSAGE_FIELD)) {
2780 		retvalue = ARCMSR_MESSAGE_FAIL;
2781 		goto message_out;
2782 	}
2783 	pcmdmessagefld = (struct CMD_MESSAGE_FIELD *) buffer;
2784 	switch(controlcode) {
2785 	case ARCMSR_MESSAGE_READ_RQBUFFER: {
2786 			u_int8_t *pQbuffer;
2787 			u_int8_t *ptmpQbuffer = pcmdmessagefld->messagedatabuffer;
2788 			int32_t allxfer_len = 0;
2789 
2790 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2791 			while ((acb->rqbuf_firstindex != acb->rqbuf_lastindex)
2792 				&& (allxfer_len < 1031)) {
2793 				pQbuffer = &acb->rqbuffer[acb->rqbuf_firstindex];
2794 				*ptmpQbuffer = *pQbuffer;
2795 				acb->rqbuf_firstindex++;
2796 				acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
2797 				ptmpQbuffer++;
2798 				allxfer_len++;
2799 			}
2800 			if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2801 				struct QBUFFER  *prbuffer;
2802 
2803 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2804 				prbuffer = arcmsr_get_iop_rqbuffer(acb);
2805 				if(arcmsr_Read_iop_rqbuffer_data(acb, prbuffer) == 0)
2806 					acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
2807 			}
2808 			pcmdmessagefld->cmdmessage.Length = allxfer_len;
2809 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2810 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2811 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2812 		}
2813 		break;
2814 	case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
2815 			int32_t my_empty_len, user_len, wqbuf_firstindex, wqbuf_lastindex;
2816 			u_int8_t *pQbuffer;
2817 			u_int8_t *ptmpuserbuffer = pcmdmessagefld->messagedatabuffer;
2818 
2819 			user_len = pcmdmessagefld->cmdmessage.Length;
2820 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2821 			wqbuf_lastindex = acb->wqbuf_lastindex;
2822 			wqbuf_firstindex = acb->wqbuf_firstindex;
2823 			if (wqbuf_lastindex != wqbuf_firstindex) {
2824 				arcmsr_Write_data_2iop_wqbuffer(acb);
2825 				/* has error report sensedata */
2826 				if(pccb->csio.sense_len) {
2827 				((u_int8_t *)&pccb->csio.sense_data)[0] = (0x1 << 7 | 0x70);
2828 				/* Valid,ErrorCode */
2829 				((u_int8_t *)&pccb->csio.sense_data)[2] = 0x05;
2830 				/* FileMark,EndOfMedia,IncorrectLength,Reserved,SenseKey */
2831 				((u_int8_t *)&pccb->csio.sense_data)[7] = 0x0A;
2832 				/* AdditionalSenseLength */
2833 				((u_int8_t *)&pccb->csio.sense_data)[12] = 0x20;
2834 				/* AdditionalSenseCode */
2835 				}
2836 				retvalue = ARCMSR_MESSAGE_FAIL;
2837 			} else {
2838 				my_empty_len = (wqbuf_firstindex-wqbuf_lastindex - 1)
2839 						&(ARCMSR_MAX_QBUFFER - 1);
2840 				if (my_empty_len >= user_len) {
2841 					while (user_len > 0) {
2842 						pQbuffer = &acb->wqbuffer[acb->wqbuf_lastindex];
2843 						*pQbuffer = *ptmpuserbuffer;
2844 						acb->wqbuf_lastindex++;
2845 						acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
2846 						ptmpuserbuffer++;
2847 						user_len--;
2848 					}
2849 					if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
2850 						acb->acb_flags &=
2851 						    ~ACB_F_MESSAGE_WQBUFFER_CLEARED;
2852 						arcmsr_Write_data_2iop_wqbuffer(acb);
2853 					}
2854 				} else {
2855 					/* has error report sensedata */
2856 					if(pccb->csio.sense_len) {
2857 					((u_int8_t *)&pccb->csio.sense_data)[0] = (0x1 << 7 | 0x70);
2858 					/* Valid,ErrorCode */
2859 					((u_int8_t *)&pccb->csio.sense_data)[2] = 0x05;
2860 					/* FileMark,EndOfMedia,IncorrectLength,Reserved,SenseKey */
2861 					((u_int8_t *)&pccb->csio.sense_data)[7] = 0x0A;
2862 					/* AdditionalSenseLength */
2863 					((u_int8_t *)&pccb->csio.sense_data)[12] = 0x20;
2864 					/* AdditionalSenseCode */
2865 					}
2866 					retvalue = ARCMSR_MESSAGE_FAIL;
2867 				}
2868 			}
2869 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2870 		}
2871 		break;
2872 	case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
2873 			u_int8_t *pQbuffer = acb->rqbuffer;
2874 
2875 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2876 			if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2877 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2878 				arcmsr_iop_message_read(acb);
2879 			}
2880 			acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
2881 			acb->rqbuf_firstindex = 0;
2882 			acb->rqbuf_lastindex = 0;
2883 			memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
2884 			pcmdmessagefld->cmdmessage.ReturnCode =
2885 			    ARCMSR_MESSAGE_RETURNCODE_OK;
2886 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2887 		}
2888 		break;
2889 	case ARCMSR_MESSAGE_CLEAR_WQBUFFER: {
2890 			u_int8_t *pQbuffer = acb->wqbuffer;
2891 
2892 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2893 			if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2894 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2895 				arcmsr_iop_message_read(acb);
2896 			}
2897 			acb->acb_flags |=
2898 				(ACB_F_MESSAGE_WQBUFFER_CLEARED |
2899 					ACB_F_MESSAGE_WQBUFFER_READ);
2900 			acb->wqbuf_firstindex = 0;
2901 			acb->wqbuf_lastindex = 0;
2902 			memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
2903 			pcmdmessagefld->cmdmessage.ReturnCode =
2904 				ARCMSR_MESSAGE_RETURNCODE_OK;
2905 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2906 		}
2907 		break;
2908 	case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: {
2909 			u_int8_t *pQbuffer;
2910 
2911 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2912 			if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2913 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2914 				arcmsr_iop_message_read(acb);
2915 			}
2916 			acb->acb_flags |=
2917 				(ACB_F_MESSAGE_WQBUFFER_CLEARED
2918 				| ACB_F_MESSAGE_RQBUFFER_CLEARED
2919 				| ACB_F_MESSAGE_WQBUFFER_READ);
2920 			acb->rqbuf_firstindex = 0;
2921 			acb->rqbuf_lastindex = 0;
2922 			acb->wqbuf_firstindex = 0;
2923 			acb->wqbuf_lastindex = 0;
2924 			pQbuffer = acb->rqbuffer;
2925 			memset(pQbuffer, 0, sizeof (struct QBUFFER));
2926 			pQbuffer = acb->wqbuffer;
2927 			memset(pQbuffer, 0, sizeof (struct QBUFFER));
2928 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2929 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2930 		}
2931 		break;
2932 	case ARCMSR_MESSAGE_REQUEST_RETURNCODE_3F: {
2933 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_3F;
2934 		}
2935 		break;
2936 	case ARCMSR_MESSAGE_SAY_HELLO: {
2937 			int8_t *hello_string = "Hello! I am ARCMSR";
2938 
2939 			memcpy(pcmdmessagefld->messagedatabuffer, hello_string
2940 				, (int16_t)strlen(hello_string));
2941 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2942 		}
2943 		break;
2944 	case ARCMSR_MESSAGE_SAY_GOODBYE:
2945 		arcmsr_iop_parking(acb);
2946 		break;
2947 	case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE:
2948 		arcmsr_flush_adapter_cache(acb);
2949 		break;
2950 	default:
2951 		retvalue = ARCMSR_MESSAGE_FAIL;
2952 	}
2953 message_out:
2954 	return (retvalue);
2955 }
2956 /*
2957 *********************************************************************
2958 *********************************************************************
2959 */
2960 static void arcmsr_execute_srb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
2961 {
2962 	struct CommandControlBlock *srb = (struct CommandControlBlock *)arg;
2963 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *)srb->acb;
2964 	union ccb *pccb;
2965 	int target, lun;
2966 
2967 	pccb = srb->pccb;
2968 	target = pccb->ccb_h.target_id;
2969 	lun = pccb->ccb_h.target_lun;
2970 	acb->pktRequestCount++;
2971 	if(error != 0) {
2972 		if(error != EFBIG) {
2973 			printf("arcmsr%d: unexpected error %x"
2974 				" returned from 'bus_dmamap_load' \n"
2975 				, acb->pci_unit, error);
2976 		}
2977 		if((pccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INPROG) {
2978 			pccb->ccb_h.status |= CAM_REQ_TOO_BIG;
2979 		}
2980 		arcmsr_srb_complete(srb, 0);
2981 		return;
2982 	}
2983 	if(nseg > ARCMSR_MAX_SG_ENTRIES) {
2984 		pccb->ccb_h.status |= CAM_REQ_TOO_BIG;
2985 		arcmsr_srb_complete(srb, 0);
2986 		return;
2987 	}
2988 	if(acb->acb_flags & ACB_F_BUS_RESET) {
2989 		printf("arcmsr%d: bus reset and return busy \n", acb->pci_unit);
2990 		pccb->ccb_h.status |= CAM_SCSI_BUS_RESET;
2991 		arcmsr_srb_complete(srb, 0);
2992 		return;
2993 	}
2994 	if(acb->devstate[target][lun] == ARECA_RAID_GONE) {
2995 		u_int8_t block_cmd, cmd;
2996 
2997 		cmd = scsiio_cdb_ptr(&pccb->csio)[0];
2998 		block_cmd = cmd & 0x0f;
2999 		if(block_cmd == 0x08 || block_cmd == 0x0a) {
3000 			printf("arcmsr%d:block 'read/write' command "
3001 				"with gone raid volume Cmd=0x%2x, TargetId=%d, Lun=%d \n"
3002 				, acb->pci_unit, cmd, target, lun);
3003 			pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
3004 			arcmsr_srb_complete(srb, 0);
3005 			return;
3006 		}
3007 	}
3008 	if((pccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
3009 		if(nseg != 0) {
3010 			bus_dmamap_unload(acb->dm_segs_dmat, srb->dm_segs_dmamap);
3011 		}
3012 		arcmsr_srb_complete(srb, 0);
3013 		return;
3014 	}
3015 	if(acb->srboutstandingcount >= acb->maxOutstanding) {
3016 		if((acb->acb_flags & ACB_F_CAM_DEV_QFRZN) == 0)
3017 		{
3018 			xpt_freeze_simq(acb->psim, 1);
3019 			acb->acb_flags |= ACB_F_CAM_DEV_QFRZN;
3020 		}
3021 		pccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3022 		pccb->ccb_h.status |= CAM_REQUEUE_REQ;
3023 		arcmsr_srb_complete(srb, 0);
3024 		return;
3025 	}
3026 	pccb->ccb_h.status |= CAM_SIM_QUEUED;
3027 	arcmsr_build_srb(srb, dm_segs, nseg);
3028 	arcmsr_post_srb(acb, srb);
3029 	if (pccb->ccb_h.timeout != CAM_TIME_INFINITY)
3030 	{
3031 		arcmsr_callout_init(&srb->ccb_callout);
3032 		callout_reset_sbt(&srb->ccb_callout, SBT_1MS *
3033 		    (pccb->ccb_h.timeout + (ARCMSR_TIMEOUT_DELAY * 1000)), 0,
3034 		    arcmsr_srb_timeout, srb, 0);
3035 		srb->srb_flags |= SRB_FLAG_TIMER_START;
3036 	}
3037 }
3038 /*
3039 *****************************************************************************************
3040 *****************************************************************************************
3041 */
3042 static u_int8_t arcmsr_seek_cmd2abort(union ccb *abortccb)
3043 {
3044 	struct CommandControlBlock *srb;
3045 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *) abortccb->ccb_h.arcmsr_ccbacb_ptr;
3046 	u_int32_t intmask_org;
3047 	int i = 0;
3048 
3049 	acb->num_aborts++;
3050 	/*
3051 	***************************************************************************
3052 	** It is the upper layer do abort command this lock just prior to calling us.
3053 	** First determine if we currently own this command.
3054 	** Start by searching the device queue. If not found
3055 	** at all, and the system wanted us to just abort the
3056 	** command return success.
3057 	***************************************************************************
3058 	*/
3059 	if(acb->srboutstandingcount != 0) {
3060 		/* disable all outbound interrupt */
3061 		intmask_org = arcmsr_disable_allintr(acb);
3062 		for(i=0; i < ARCMSR_MAX_FREESRB_NUM; i++) {
3063 			srb = acb->psrb_pool[i];
3064 			if(srb->srb_state == ARCMSR_SRB_START) {
3065 				if(srb->pccb == abortccb) {
3066 					srb->srb_state = ARCMSR_SRB_ABORTED;
3067 					printf("arcmsr%d:scsi id=%d lun=%jx abort srb '%p'"
3068 						"outstanding command \n"
3069 						, acb->pci_unit, abortccb->ccb_h.target_id
3070 						, (uintmax_t)abortccb->ccb_h.target_lun, srb);
3071 					arcmsr_polling_srbdone(acb, srb);
3072 					/* enable outbound Post Queue, outbound doorbell Interrupt */
3073 					arcmsr_enable_allintr(acb, intmask_org);
3074 					return (TRUE);
3075 				}
3076 			}
3077 		}
3078 		/* enable outbound Post Queue, outbound doorbell Interrupt */
3079 		arcmsr_enable_allintr(acb, intmask_org);
3080 	}
3081 	return(FALSE);
3082 }
3083 /*
3084 ****************************************************************************
3085 ****************************************************************************
3086 */
3087 static void arcmsr_bus_reset(struct AdapterControlBlock *acb)
3088 {
3089 	int retry = 0;
3090 
3091 	acb->num_resets++;
3092 	acb->acb_flags |= ACB_F_BUS_RESET;
3093 	while(acb->srboutstandingcount != 0 && retry < 400) {
3094 		arcmsr_interrupt(acb);
3095 		UDELAY(25000);
3096 		retry++;
3097 	}
3098 	arcmsr_iop_reset(acb);
3099 	acb->acb_flags &= ~ACB_F_BUS_RESET;
3100 }
3101 /*
3102 **************************************************************************
3103 **************************************************************************
3104 */
3105 static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb,
3106 		union ccb *pccb)
3107 {
3108 	if (pccb->ccb_h.target_lun) {
3109 		pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
3110 		xpt_done(pccb);
3111 		return;
3112 	}
3113 	pccb->ccb_h.status |= CAM_REQ_CMP;
3114 	switch (scsiio_cdb_ptr(&pccb->csio)[0]) {
3115 	case INQUIRY: {
3116 		unsigned char inqdata[36];
3117 		char *buffer = pccb->csio.data_ptr;
3118 
3119 		inqdata[0] = T_PROCESSOR;	/* Periph Qualifier & Periph Dev Type */
3120 		inqdata[1] = 0;			/* rem media bit & Dev Type Modifier */
3121 		inqdata[2] = 0;			/* ISO, ECMA, & ANSI versions */
3122 		inqdata[3] = 0;
3123 		inqdata[4] = 31;		/* length of additional data */
3124 		inqdata[5] = 0;
3125 		inqdata[6] = 0;
3126 		inqdata[7] = 0;
3127 		strncpy(&inqdata[8], "Areca   ", 8);	/* Vendor Identification */
3128 		strncpy(&inqdata[16], "RAID controller ", 16);	/* Product Identification */
3129 		strncpy(&inqdata[32], "R001", 4); /* Product Revision */
3130 		memcpy(buffer, inqdata, sizeof(inqdata));
3131 		xpt_done(pccb);
3132 	}
3133 	break;
3134 	case WRITE_BUFFER:
3135 	case READ_BUFFER: {
3136 		if (arcmsr_iop_message_xfer(acb, pccb)) {
3137 			pccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
3138 			pccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
3139 		}
3140 		xpt_done(pccb);
3141 	}
3142 	break;
3143 	default:
3144 		xpt_done(pccb);
3145 	}
3146 }
3147 /*
3148 *********************************************************************
3149 *********************************************************************
3150 */
3151 static void arcmsr_action(struct cam_sim *psim, union ccb *pccb)
3152 {
3153 	struct AdapterControlBlock *acb;
3154 
3155 	acb = (struct AdapterControlBlock *) cam_sim_softc(psim);
3156 	if(acb == NULL) {
3157 		pccb->ccb_h.status |= CAM_REQ_INVALID;
3158 		xpt_done(pccb);
3159 		return;
3160 	}
3161 	switch (pccb->ccb_h.func_code) {
3162 	case XPT_SCSI_IO: {
3163 			struct CommandControlBlock *srb;
3164 			int target = pccb->ccb_h.target_id;
3165 			int error;
3166 
3167 			if (pccb->ccb_h.flags & CAM_CDB_PHYS) {
3168 				pccb->ccb_h.status = CAM_REQ_INVALID;
3169 				xpt_done(pccb);
3170 				return;
3171 			}
3172 
3173 			if(target == 16) {
3174 				/* virtual device for iop message transfer */
3175 				arcmsr_handle_virtual_command(acb, pccb);
3176 				return;
3177 			}
3178 			if((srb = arcmsr_get_freesrb(acb)) == NULL) {
3179 				pccb->ccb_h.status |= CAM_RESRC_UNAVAIL;
3180 				xpt_done(pccb);
3181 				return;
3182 			}
3183 			pccb->ccb_h.arcmsr_ccbsrb_ptr = srb;
3184 			pccb->ccb_h.arcmsr_ccbacb_ptr = acb;
3185 			srb->pccb = pccb;
3186 			error =	bus_dmamap_load_ccb(acb->dm_segs_dmat
3187 				, srb->dm_segs_dmamap
3188 				, pccb
3189 				, arcmsr_execute_srb, srb, /*flags*/0);
3190 			if(error == EINPROGRESS) {
3191 				xpt_freeze_simq(acb->psim, 1);
3192 				pccb->ccb_h.status |= CAM_RELEASE_SIMQ;
3193 			}
3194 			break;
3195 		}
3196 	case XPT_PATH_INQ: {
3197 			struct ccb_pathinq *cpi = &pccb->cpi;
3198 
3199 			cpi->version_num = 1;
3200 			cpi->hba_inquiry = PI_SDTR_ABLE | PI_TAG_ABLE;
3201 			cpi->target_sprt = 0;
3202 			cpi->hba_misc = 0;
3203 			cpi->hba_eng_cnt = 0;
3204 			cpi->max_target = ARCMSR_MAX_TARGETID;        /* 0-16 */
3205 			cpi->max_lun = ARCMSR_MAX_TARGETLUN;	    /* 0-7 */
3206 			cpi->initiator_id = ARCMSR_SCSI_INITIATOR_ID; /* 255 */
3207 			cpi->bus_id = cam_sim_bus(psim);
3208 			strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
3209 			strlcpy(cpi->hba_vid, "ARCMSR", HBA_IDLEN);
3210 			strlcpy(cpi->dev_name, cam_sim_name(psim), DEV_IDLEN);
3211 			cpi->unit_number = cam_sim_unit(psim);
3212 			if(acb->adapter_bus_speed == ACB_BUS_SPEED_12G)
3213 				cpi->base_transfer_speed = 1200000;
3214 			else if(acb->adapter_bus_speed == ACB_BUS_SPEED_6G)
3215 				cpi->base_transfer_speed = 600000;
3216 			else
3217 				cpi->base_transfer_speed = 300000;
3218 			if((acb->vendor_device_id == PCIDevVenIDARC1880) ||
3219 			   (acb->vendor_device_id == PCIDevVenIDARC1884) ||
3220 			   (acb->vendor_device_id == PCIDevVenIDARC1680) ||
3221 			   (acb->vendor_device_id == PCIDevVenIDARC1214))
3222 			{
3223 				cpi->transport = XPORT_SAS;
3224 				cpi->transport_version = 0;
3225 				cpi->protocol_version = SCSI_REV_SPC2;
3226 			}
3227 			else
3228 			{
3229 				cpi->transport = XPORT_SPI;
3230 				cpi->transport_version = 2;
3231 				cpi->protocol_version = SCSI_REV_2;
3232 			}
3233 			cpi->protocol = PROTO_SCSI;
3234 			cpi->ccb_h.status |= CAM_REQ_CMP;
3235 			xpt_done(pccb);
3236 			break;
3237 		}
3238 	case XPT_ABORT: {
3239 			union ccb *pabort_ccb;
3240 
3241 			pabort_ccb = pccb->cab.abort_ccb;
3242 			switch (pabort_ccb->ccb_h.func_code) {
3243 			case XPT_ACCEPT_TARGET_IO:
3244 			case XPT_CONT_TARGET_IO:
3245 				if(arcmsr_seek_cmd2abort(pabort_ccb)==TRUE) {
3246 					pabort_ccb->ccb_h.status |= CAM_REQ_ABORTED;
3247 					xpt_done(pabort_ccb);
3248 					pccb->ccb_h.status |= CAM_REQ_CMP;
3249 				} else {
3250 					xpt_print_path(pabort_ccb->ccb_h.path);
3251 					printf("Not found\n");
3252 					pccb->ccb_h.status |= CAM_PATH_INVALID;
3253 				}
3254 				break;
3255 			case XPT_SCSI_IO:
3256 				pccb->ccb_h.status |= CAM_UA_ABORT;
3257 				break;
3258 			default:
3259 				pccb->ccb_h.status |= CAM_REQ_INVALID;
3260 				break;
3261 			}
3262 			xpt_done(pccb);
3263 			break;
3264 		}
3265 	case XPT_RESET_BUS:
3266 	case XPT_RESET_DEV: {
3267 			u_int32_t	i;
3268 
3269 			arcmsr_bus_reset(acb);
3270 			for (i=0; i < 500; i++) {
3271 				DELAY(1000);
3272 			}
3273 			pccb->ccb_h.status |= CAM_REQ_CMP;
3274 			xpt_done(pccb);
3275 			break;
3276 		}
3277 	case XPT_TERM_IO: {
3278 			pccb->ccb_h.status |= CAM_REQ_INVALID;
3279 			xpt_done(pccb);
3280 			break;
3281 		}
3282 	case XPT_GET_TRAN_SETTINGS: {
3283 			struct ccb_trans_settings *cts;
3284 
3285 			if(pccb->ccb_h.target_id == 16) {
3286 				pccb->ccb_h.status |= CAM_FUNC_NOTAVAIL;
3287 				xpt_done(pccb);
3288 				break;
3289 			}
3290 			cts = &pccb->cts;
3291 			{
3292 				struct ccb_trans_settings_scsi *scsi;
3293 				struct ccb_trans_settings_spi *spi;
3294 				struct ccb_trans_settings_sas *sas;
3295 
3296 				scsi = &cts->proto_specific.scsi;
3297 				scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3298 				scsi->valid = CTS_SCSI_VALID_TQ;
3299 				cts->protocol = PROTO_SCSI;
3300 
3301 				if((acb->vendor_device_id == PCIDevVenIDARC1880) ||
3302 				   (acb->vendor_device_id == PCIDevVenIDARC1884) ||
3303 				   (acb->vendor_device_id == PCIDevVenIDARC1680) ||
3304 				   (acb->vendor_device_id == PCIDevVenIDARC1214))
3305 				{
3306 					cts->protocol_version = SCSI_REV_SPC2;
3307 					cts->transport_version = 0;
3308 					cts->transport = XPORT_SAS;
3309 					sas = &cts->xport_specific.sas;
3310 					sas->valid = CTS_SAS_VALID_SPEED;
3311 					if (acb->adapter_bus_speed == ACB_BUS_SPEED_12G)
3312 						sas->bitrate = 1200000;
3313 					else if(acb->adapter_bus_speed == ACB_BUS_SPEED_6G)
3314 						sas->bitrate = 600000;
3315 					else if(acb->adapter_bus_speed == ACB_BUS_SPEED_3G)
3316 						sas->bitrate = 300000;
3317 				}
3318 				else
3319 				{
3320 					cts->protocol_version = SCSI_REV_2;
3321 					cts->transport_version = 2;
3322 					cts->transport = XPORT_SPI;
3323 					spi = &cts->xport_specific.spi;
3324 					spi->flags = CTS_SPI_FLAGS_DISC_ENB;
3325 					if (acb->adapter_bus_speed == ACB_BUS_SPEED_6G)
3326 						spi->sync_period = 1;
3327 					else
3328 						spi->sync_period = 2;
3329 					spi->sync_offset = 32;
3330 					spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3331 					spi->valid = CTS_SPI_VALID_DISC
3332 						| CTS_SPI_VALID_SYNC_RATE
3333 						| CTS_SPI_VALID_SYNC_OFFSET
3334 						| CTS_SPI_VALID_BUS_WIDTH;
3335 				}
3336 			}
3337 			pccb->ccb_h.status |= CAM_REQ_CMP;
3338 			xpt_done(pccb);
3339 			break;
3340 		}
3341 	case XPT_SET_TRAN_SETTINGS: {
3342 			pccb->ccb_h.status |= CAM_FUNC_NOTAVAIL;
3343 			xpt_done(pccb);
3344 			break;
3345 		}
3346 	case XPT_CALC_GEOMETRY:
3347 			if(pccb->ccb_h.target_id == 16) {
3348 				pccb->ccb_h.status |= CAM_FUNC_NOTAVAIL;
3349 				xpt_done(pccb);
3350 				break;
3351 			}
3352 			cam_calc_geometry(&pccb->ccg, 1);
3353 			xpt_done(pccb);
3354 			break;
3355 	default:
3356 		pccb->ccb_h.status |= CAM_REQ_INVALID;
3357 		xpt_done(pccb);
3358 		break;
3359 	}
3360 }
3361 /*
3362 **********************************************************************
3363 **********************************************************************
3364 */
3365 static void arcmsr_start_hba_bgrb(struct AdapterControlBlock *acb)
3366 {
3367 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3368 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_START_BGRB);
3369 	if(!arcmsr_hba_wait_msgint_ready(acb)) {
3370 		printf("arcmsr%d: wait 'start adapter background rebulid' timeout \n", acb->pci_unit);
3371 	}
3372 }
3373 /*
3374 **********************************************************************
3375 **********************************************************************
3376 */
3377 static void arcmsr_start_hbb_bgrb(struct AdapterControlBlock *acb)
3378 {
3379 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
3380 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3381 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_START_BGRB);
3382 	if(!arcmsr_hbb_wait_msgint_ready(acb)) {
3383 		printf( "arcmsr%d: wait 'start adapter background rebulid' timeout \n", acb->pci_unit);
3384 	}
3385 }
3386 /*
3387 **********************************************************************
3388 **********************************************************************
3389 */
3390 static void arcmsr_start_hbc_bgrb(struct AdapterControlBlock *acb)
3391 {
3392 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3393 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_START_BGRB);
3394 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
3395 	if(!arcmsr_hbc_wait_msgint_ready(acb)) {
3396 		printf("arcmsr%d: wait 'start adapter background rebulid' timeout \n", acb->pci_unit);
3397 	}
3398 }
3399 /*
3400 **********************************************************************
3401 **********************************************************************
3402 */
3403 static void arcmsr_start_hbd_bgrb(struct AdapterControlBlock *acb)
3404 {
3405 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3406 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_START_BGRB);
3407 	if(!arcmsr_hbd_wait_msgint_ready(acb)) {
3408 		printf("arcmsr%d: wait 'start adapter background rebulid' timeout \n", acb->pci_unit);
3409 	}
3410 }
3411 /*
3412 **********************************************************************
3413 **********************************************************************
3414 */
3415 static void arcmsr_start_hbe_bgrb(struct AdapterControlBlock *acb)
3416 {
3417 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3418 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_START_BGRB);
3419 	acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
3420 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
3421 	if(!arcmsr_hbe_wait_msgint_ready(acb)) {
3422 		printf("arcmsr%d: wait 'start adapter background rebulid' timeout \n", acb->pci_unit);
3423 	}
3424 }
3425 /*
3426 **********************************************************************
3427 **********************************************************************
3428 */
3429 static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb)
3430 {
3431 	switch (acb->adapter_type) {
3432 	case ACB_ADAPTER_TYPE_A:
3433 		arcmsr_start_hba_bgrb(acb);
3434 		break;
3435 	case ACB_ADAPTER_TYPE_B:
3436 		arcmsr_start_hbb_bgrb(acb);
3437 		break;
3438 	case ACB_ADAPTER_TYPE_C:
3439 		arcmsr_start_hbc_bgrb(acb);
3440 		break;
3441 	case ACB_ADAPTER_TYPE_D:
3442 		arcmsr_start_hbd_bgrb(acb);
3443 		break;
3444 	case ACB_ADAPTER_TYPE_E:
3445 	case ACB_ADAPTER_TYPE_F:
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 		break;
3734 	case ACB_ADAPTER_TYPE_B:
3735 		arcmsr_polling_hbb_srbdone(acb, poll_srb);
3736 		break;
3737 	case ACB_ADAPTER_TYPE_C:
3738 		arcmsr_polling_hbc_srbdone(acb, poll_srb);
3739 		break;
3740 	case ACB_ADAPTER_TYPE_D:
3741 		arcmsr_polling_hbd_srbdone(acb, poll_srb);
3742 		break;
3743 	case ACB_ADAPTER_TYPE_E:
3744 	case ACB_ADAPTER_TYPE_F:
3745 		arcmsr_polling_hbe_srbdone(acb, poll_srb);
3746 		break;
3747 	}
3748 }
3749 /*
3750 **********************************************************************
3751 **********************************************************************
3752 */
3753 static void arcmsr_get_hba_config(struct AdapterControlBlock *acb)
3754 {
3755 	char *acb_firm_model = acb->firm_model;
3756 	char *acb_firm_version = acb->firm_version;
3757 	char *acb_device_map = acb->device_map;
3758 	size_t iop_firm_model = offsetof(struct HBA_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);	/*firm_model,15,60-67*/
3759 	size_t iop_firm_version = offsetof(struct HBA_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]);	/*firm_version,17,68-83*/
3760 	size_t iop_device_map = offsetof(struct HBA_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3761 	int i;
3762 
3763 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
3764 	if(!arcmsr_hba_wait_msgint_ready(acb)) {
3765 		printf("arcmsr%d: wait 'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3766 	}
3767 	i = 0;
3768 	while(i < 8) {
3769 		*acb_firm_model = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_model+i);
3770 		/* 8 bytes firm_model, 15, 60-67*/
3771 		acb_firm_model++;
3772 		i++;
3773 	}
3774 	i=0;
3775 	while(i < 16) {
3776 		*acb_firm_version = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_version+i);
3777 		/* 16 bytes firm_version, 17, 68-83*/
3778 		acb_firm_version++;
3779 		i++;
3780 	}
3781 	i=0;
3782 	while(i < 16) {
3783 		*acb_device_map = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_device_map+i);
3784 		acb_device_map++;
3785 		i++;
3786 	}
3787 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3788 	acb->firm_request_len = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[1]);   /*firm_request_len, 1, 04-07*/
3789 	acb->firm_numbers_queue = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[2]); /*firm_numbers_queue, 2, 08-11*/
3790 	acb->firm_sdram_size = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[3]);    /*firm_sdram_size, 3, 12-15*/
3791 	acb->firm_ide_channels = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[4]);  /*firm_ide_channels, 4, 16-19*/
3792 	acb->firm_cfg_version = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
3793 	if(acb->firm_numbers_queue > ARCMSR_MAX_OUTSTANDING_CMD)
3794 		acb->maxOutstanding = ARCMSR_MAX_OUTSTANDING_CMD - 1;
3795 	else
3796 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
3797 }
3798 /*
3799 **********************************************************************
3800 **********************************************************************
3801 */
3802 static void arcmsr_get_hbb_config(struct AdapterControlBlock *acb)
3803 {
3804 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
3805 	char *acb_firm_model = acb->firm_model;
3806 	char *acb_firm_version = acb->firm_version;
3807 	char *acb_device_map = acb->device_map;
3808 	size_t iop_firm_model = offsetof(struct HBB_RWBUFFER, msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);	/*firm_model,15,60-67*/
3809 	size_t iop_firm_version = offsetof(struct HBB_RWBUFFER, msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]);	/*firm_version,17,68-83*/
3810 	size_t iop_device_map = offsetof(struct HBB_RWBUFFER, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3811 	int i;
3812 
3813 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_GET_CONFIG);
3814 	if(!arcmsr_hbb_wait_msgint_ready(acb)) {
3815 		printf( "arcmsr%d: wait" "'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3816 	}
3817 	i = 0;
3818 	while(i < 8) {
3819 		*acb_firm_model = bus_space_read_1(acb->btag[1], acb->bhandle[1], iop_firm_model+i);
3820 		/* 8 bytes firm_model, 15, 60-67*/
3821 		acb_firm_model++;
3822 		i++;
3823 	}
3824 	i = 0;
3825 	while(i < 16) {
3826 		*acb_firm_version = bus_space_read_1(acb->btag[1], acb->bhandle[1], iop_firm_version+i);
3827 		/* 16 bytes firm_version, 17, 68-83*/
3828 		acb_firm_version++;
3829 		i++;
3830 	}
3831 	i = 0;
3832 	while(i < 16) {
3833 		*acb_device_map = bus_space_read_1(acb->btag[1], acb->bhandle[1], iop_device_map+i);
3834 		acb_device_map++;
3835 		i++;
3836 	}
3837 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3838 	acb->firm_request_len = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[1]);   /*firm_request_len, 1, 04-07*/
3839 	acb->firm_numbers_queue = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[2]); /*firm_numbers_queue, 2, 08-11*/
3840 	acb->firm_sdram_size = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[3]);    /*firm_sdram_size, 3, 12-15*/
3841 	acb->firm_ide_channels = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[4]);  /*firm_ide_channels, 4, 16-19*/
3842 	acb->firm_cfg_version = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
3843 	if(acb->firm_numbers_queue > ARCMSR_MAX_HBB_POSTQUEUE)
3844 		acb->maxOutstanding = ARCMSR_MAX_HBB_POSTQUEUE - 1;
3845 	else
3846 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
3847 }
3848 /*
3849 **********************************************************************
3850 **********************************************************************
3851 */
3852 static void arcmsr_get_hbc_config(struct AdapterControlBlock *acb)
3853 {
3854 	char *acb_firm_model = acb->firm_model;
3855 	char *acb_firm_version = acb->firm_version;
3856 	char *acb_device_map = acb->device_map;
3857 	size_t iop_firm_model = offsetof(struct HBC_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);   /*firm_model,15,60-67*/
3858 	size_t iop_firm_version = offsetof(struct HBC_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]); /*firm_version,17,68-83*/
3859 	size_t iop_device_map = offsetof(struct HBC_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3860 	int i;
3861 
3862 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
3863 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
3864 	if(!arcmsr_hbc_wait_msgint_ready(acb)) {
3865 		printf("arcmsr%d: wait 'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3866 	}
3867 	i = 0;
3868 	while(i < 8) {
3869 		*acb_firm_model = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_model+i);
3870 		/* 8 bytes firm_model, 15, 60-67*/
3871 		acb_firm_model++;
3872 		i++;
3873 	}
3874 	i = 0;
3875 	while(i < 16) {
3876 		*acb_firm_version = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_version+i);
3877 		/* 16 bytes firm_version, 17, 68-83*/
3878 		acb_firm_version++;
3879 		i++;
3880 	}
3881 	i = 0;
3882 	while(i < 16) {
3883 		*acb_device_map = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_device_map+i);
3884 		acb_device_map++;
3885 		i++;
3886 	}
3887 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3888 	acb->firm_request_len	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[1]);	/*firm_request_len,   1, 04-07*/
3889 	acb->firm_numbers_queue	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[2]);	/*firm_numbers_queue, 2, 08-11*/
3890 	acb->firm_sdram_size	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[3]);	/*firm_sdram_size,    3, 12-15*/
3891 	acb->firm_ide_channels	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[4]);	/*firm_ide_channels,  4, 16-19*/
3892 	acb->firm_cfg_version	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
3893 	if(acb->firm_numbers_queue > ARCMSR_MAX_OUTSTANDING_CMD)
3894 		acb->maxOutstanding = ARCMSR_MAX_OUTSTANDING_CMD - 1;
3895 	else
3896 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
3897 }
3898 /*
3899 **********************************************************************
3900 **********************************************************************
3901 */
3902 static void arcmsr_get_hbd_config(struct AdapterControlBlock *acb)
3903 {
3904 	char *acb_firm_model = acb->firm_model;
3905 	char *acb_firm_version = acb->firm_version;
3906 	char *acb_device_map = acb->device_map;
3907 	size_t iop_firm_model = offsetof(struct HBD_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);   /*firm_model,15,60-67*/
3908 	size_t iop_firm_version = offsetof(struct HBD_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]); /*firm_version,17,68-83*/
3909 	size_t iop_device_map = offsetof(struct HBD_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3910 	int i;
3911 
3912 	if(CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE)
3913 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE_CLEAR);
3914 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
3915 	if(!arcmsr_hbd_wait_msgint_ready(acb)) {
3916 		printf("arcmsr%d: wait 'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3917 	}
3918 	i = 0;
3919 	while(i < 8) {
3920 		*acb_firm_model = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_model+i);
3921 		/* 8 bytes firm_model, 15, 60-67*/
3922 		acb_firm_model++;
3923 		i++;
3924 	}
3925 	i = 0;
3926 	while(i < 16) {
3927 		*acb_firm_version = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_version+i);
3928 		/* 16 bytes firm_version, 17, 68-83*/
3929 		acb_firm_version++;
3930 		i++;
3931 	}
3932 	i = 0;
3933 	while(i < 16) {
3934 		*acb_device_map = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_device_map+i);
3935 		acb_device_map++;
3936 		i++;
3937 	}
3938 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3939 	acb->firm_request_len	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[1]);	/*firm_request_len,   1, 04-07*/
3940 	acb->firm_numbers_queue	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[2]);	/*firm_numbers_queue, 2, 08-11*/
3941 	acb->firm_sdram_size	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[3]);	/*firm_sdram_size,    3, 12-15*/
3942 	acb->firm_ide_channels	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[4]);	/*firm_ide_channels,  4, 16-19*/
3943 	acb->firm_cfg_version	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
3944 	if(acb->firm_numbers_queue > ARCMSR_MAX_HBD_POSTQUEUE)
3945 		acb->maxOutstanding = ARCMSR_MAX_HBD_POSTQUEUE - 1;
3946 	else
3947 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
3948 }
3949 /*
3950 **********************************************************************
3951 **********************************************************************
3952 */
3953 static void arcmsr_get_hbe_config(struct AdapterControlBlock *acb)
3954 {
3955 	char *acb_firm_model = acb->firm_model;
3956 	char *acb_firm_version = acb->firm_version;
3957 	char *acb_device_map = acb->device_map;
3958 	size_t iop_firm_model = offsetof(struct HBE_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);   /*firm_model,15,60-67*/
3959 	size_t iop_firm_version = offsetof(struct HBE_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]); /*firm_version,17,68-83*/
3960 	size_t iop_device_map = offsetof(struct HBE_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3961 	int i;
3962 
3963 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
3964 	acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
3965 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
3966 	if(!arcmsr_hbe_wait_msgint_ready(acb)) {
3967 		printf("arcmsr%d: wait 'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3968 	}
3969 
3970 	i = 0;
3971 	while(i < 8) {
3972 		*acb_firm_model = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_model+i);
3973 		/* 8 bytes firm_model, 15, 60-67*/
3974 		acb_firm_model++;
3975 		i++;
3976 	}
3977 	i = 0;
3978 	while(i < 16) {
3979 		*acb_firm_version = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_version+i);
3980 		/* 16 bytes firm_version, 17, 68-83*/
3981 		acb_firm_version++;
3982 		i++;
3983 	}
3984 	i = 0;
3985 	while(i < 16) {
3986 		*acb_device_map = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_device_map+i);
3987 		acb_device_map++;
3988 		i++;
3989 	}
3990 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3991 	acb->firm_request_len	= CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[1]);	/*firm_request_len,   1, 04-07*/
3992 	acb->firm_numbers_queue	= CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[2]);	/*firm_numbers_queue, 2, 08-11*/
3993 	acb->firm_sdram_size	= CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[3]);	/*firm_sdram_size,    3, 12-15*/
3994 	acb->firm_ide_channels	= CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[4]);	/*firm_ide_channels,  4, 16-19*/
3995 	acb->firm_cfg_version	= CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
3996 	if(acb->firm_numbers_queue > ARCMSR_MAX_OUTSTANDING_CMD)
3997 		acb->maxOutstanding = ARCMSR_MAX_OUTSTANDING_CMD - 1;
3998 	else
3999 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
4000 }
4001 /*
4002 **********************************************************************
4003 **********************************************************************
4004 */
4005 static void arcmsr_get_hbf_config(struct AdapterControlBlock *acb)
4006 {
4007 	u_int32_t *acb_firm_model = (u_int32_t *)acb->firm_model;
4008 	u_int32_t *acb_firm_version = (u_int32_t *)acb->firm_version;
4009 	u_int32_t *acb_device_map = (u_int32_t *)acb->device_map;
4010 	size_t iop_firm_model = ARCMSR_FW_MODEL_OFFSET;   /*firm_model,15,60-67*/
4011 	size_t iop_firm_version = ARCMSR_FW_VERS_OFFSET; /*firm_version,17,68-83*/
4012 	size_t iop_device_map = ARCMSR_FW_DEVMAP_OFFSET;
4013 	int i;
4014 
4015 	CHIP_REG_WRITE32(HBF_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
4016 	acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
4017 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
4018 	if(!arcmsr_hbe_wait_msgint_ready(acb))
4019 		printf("arcmsr%d: wait 'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
4020 
4021 	i = 0;
4022 	while(i < 2) {
4023 		*acb_firm_model = acb->msgcode_rwbuffer[iop_firm_model];
4024 		/* 8 bytes firm_model, 15, 60-67*/
4025 		acb_firm_model++;
4026 		iop_firm_model++;
4027 		i++;
4028 	}
4029 	i = 0;
4030 	while(i < 4) {
4031 		*acb_firm_version = acb->msgcode_rwbuffer[iop_firm_version];
4032 		/* 16 bytes firm_version, 17, 68-83*/
4033 		acb_firm_version++;
4034 		iop_firm_version++;
4035 		i++;
4036 	}
4037 	i = 0;
4038 	while(i < 4) {
4039 		*acb_device_map = acb->msgcode_rwbuffer[iop_device_map];
4040 		acb_device_map++;
4041 		iop_device_map++;
4042 		i++;
4043 	}
4044 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
4045 	acb->firm_request_len	= acb->msgcode_rwbuffer[1];	/*firm_request_len,   1, 04-07*/
4046 	acb->firm_numbers_queue	= acb->msgcode_rwbuffer[2];	/*firm_numbers_queue, 2, 08-11*/
4047 	acb->firm_sdram_size	= acb->msgcode_rwbuffer[3];	/*firm_sdram_size,    3, 12-15*/
4048 	acb->firm_ide_channels	= acb->msgcode_rwbuffer[4];	/*firm_ide_channels,  4, 16-19*/
4049 	acb->firm_cfg_version	= acb->msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]; /*firm_cfg_version,  25*/
4050 	if(acb->firm_numbers_queue > ARCMSR_MAX_OUTSTANDING_CMD)
4051 		acb->maxOutstanding = ARCMSR_MAX_OUTSTANDING_CMD - 1;
4052 	else
4053 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
4054 }
4055 /*
4056 **********************************************************************
4057 **********************************************************************
4058 */
4059 static void arcmsr_get_firmware_spec(struct AdapterControlBlock *acb)
4060 {
4061 	switch (acb->adapter_type) {
4062 	case ACB_ADAPTER_TYPE_A:
4063 		arcmsr_get_hba_config(acb);
4064 		break;
4065 	case ACB_ADAPTER_TYPE_B:
4066 		arcmsr_get_hbb_config(acb);
4067 		break;
4068 	case ACB_ADAPTER_TYPE_C:
4069 		arcmsr_get_hbc_config(acb);
4070 		break;
4071 	case ACB_ADAPTER_TYPE_D:
4072 		arcmsr_get_hbd_config(acb);
4073 		break;
4074 	case ACB_ADAPTER_TYPE_E:
4075 		arcmsr_get_hbe_config(acb);
4076 		break;
4077 	case ACB_ADAPTER_TYPE_F:
4078 		arcmsr_get_hbf_config(acb);
4079 		break;
4080 	}
4081 }
4082 /*
4083 **********************************************************************
4084 **********************************************************************
4085 */
4086 static void arcmsr_wait_firmware_ready( struct AdapterControlBlock *acb)
4087 {
4088 	int	timeout=0;
4089 
4090 	switch (acb->adapter_type) {
4091 	case ACB_ADAPTER_TYPE_A: {
4092 			while ((CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_msgaddr1) & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0)
4093 			{
4094 				if (timeout++ > 2000) /* (2000*15)/1000 = 30 sec */
4095 				{
4096 					printf( "arcmsr%d:timed out waiting for firmware \n", acb->pci_unit);
4097 					return;
4098 				}
4099 				UDELAY(15000); /* wait 15 milli-seconds */
4100 			}
4101 		}
4102 		break;
4103 	case ACB_ADAPTER_TYPE_B: {
4104 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
4105 			while ((READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell) & ARCMSR_MESSAGE_FIRMWARE_OK) == 0)
4106 			{
4107 				if (timeout++ > 2000) /* (2000*15)/1000 = 30 sec */
4108 				{
4109 					printf( "arcmsr%d: timed out waiting for firmware \n", acb->pci_unit);
4110 					return;
4111 				}
4112 				UDELAY(15000); /* wait 15 milli-seconds */
4113 			}
4114 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_END_OF_INTERRUPT);
4115 		}
4116 		break;
4117 	case ACB_ADAPTER_TYPE_C: {
4118 			while ((CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_msgaddr1) & ARCMSR_HBCMU_MESSAGE_FIRMWARE_OK) == 0)
4119 			{
4120 				if (timeout++ > 2000) /* (2000*15)/1000 = 30 sec */
4121 				{
4122 					printf( "arcmsr%d:timed out waiting for firmware ready\n", acb->pci_unit);
4123 					return;
4124 				}
4125 				UDELAY(15000); /* wait 15 milli-seconds */
4126 			}
4127 		}
4128 		break;
4129 	case ACB_ADAPTER_TYPE_D: {
4130 			while ((CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_msgaddr1) & ARCMSR_HBDMU_MESSAGE_FIRMWARE_OK) == 0)
4131 			{
4132 				if (timeout++ > 2000) /* (2000*15)/1000 = 30 sec */
4133 				{
4134 					printf( "arcmsr%d:timed out waiting for firmware ready\n", acb->pci_unit);
4135 					return;
4136 				}
4137 				UDELAY(15000); /* wait 15 milli-seconds */
4138 			}
4139 		}
4140 		break;
4141 	case ACB_ADAPTER_TYPE_E:
4142 	case ACB_ADAPTER_TYPE_F: {
4143 			while ((CHIP_REG_READ32(HBE_MessageUnit, 0, outbound_msgaddr1) & ARCMSR_HBEMU_MESSAGE_FIRMWARE_OK) == 0)
4144 			{
4145 				if (timeout++ > 4000) /* (4000*15)/1000 = 60 sec */
4146 				{
4147 					printf( "arcmsr%d:timed out waiting for firmware ready\n", acb->pci_unit);
4148 					return;
4149 				}
4150 				UDELAY(15000); /* wait 15 milli-seconds */
4151 			}
4152 		}
4153 		break;
4154 	}
4155 }
4156 /*
4157 **********************************************************************
4158 **********************************************************************
4159 */
4160 static void arcmsr_clear_doorbell_queue_buffer( struct AdapterControlBlock *acb)
4161 {
4162 	u_int32_t outbound_doorbell;
4163 
4164 	switch (acb->adapter_type) {
4165 	case ACB_ADAPTER_TYPE_A: {
4166 			/* empty doorbell Qbuffer if door bell ringed */
4167 			outbound_doorbell = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_doorbell);
4168 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_doorbell, outbound_doorbell);	/*clear doorbell interrupt */
4169 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_READ_OK);
4170 		}
4171 		break;
4172 	case ACB_ADAPTER_TYPE_B: {
4173 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
4174 			WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_DOORBELL_INT_CLEAR_PATTERN);/*clear interrupt and message state*/
4175 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_DATA_READ_OK);
4176 			/* let IOP know data has been read */
4177 		}
4178 		break;
4179 	case ACB_ADAPTER_TYPE_C: {
4180 			/* empty doorbell Qbuffer if door bell ringed */
4181 			outbound_doorbell = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_doorbell);
4182 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, outbound_doorbell_clear, outbound_doorbell);	/*clear doorbell interrupt */
4183 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK);
4184 			CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_doorbell_clear); /* Dummy read to force pci flush */
4185 			CHIP_REG_READ32(HBC_MessageUnit, 0, inbound_doorbell); /* Dummy read to force pci flush */
4186 		}
4187 		break;
4188 	case ACB_ADAPTER_TYPE_D: {
4189 			/* empty doorbell Qbuffer if door bell ringed */
4190 			outbound_doorbell = CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell);
4191 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, outbound_doorbell);	/*clear doorbell interrupt */
4192 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_doorbell, ARCMSR_HBDMU_DRV2IOP_DATA_OUT_READ);
4193 		}
4194 		break;
4195 	case ACB_ADAPTER_TYPE_E:
4196 	case ACB_ADAPTER_TYPE_F: {
4197 			/* empty doorbell Qbuffer if door bell ringed */
4198 			acb->in_doorbell = CHIP_REG_READ32(HBE_MessageUnit, 0, iobound_doorbell);
4199 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_status, 0);	/*clear doorbell interrupt */
4200 			acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_READ_OK;
4201 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
4202 		}
4203 		break;
4204 	}
4205 }
4206 /*
4207 ************************************************************************
4208 ************************************************************************
4209 */
4210 static u_int32_t arcmsr_iop_confirm(struct AdapterControlBlock *acb)
4211 {
4212 	unsigned long srb_phyaddr;
4213 	u_int32_t srb_phyaddr_hi32;
4214 	u_int32_t srb_phyaddr_lo32;
4215 
4216 	/*
4217 	********************************************************************
4218 	** here we need to tell iop 331 our freesrb.HighPart
4219 	** if freesrb.HighPart is not zero
4220 	********************************************************************
4221 	*/
4222 	srb_phyaddr = (unsigned long) acb->srb_phyaddr.phyaddr;
4223 	srb_phyaddr_hi32 = acb->srb_phyaddr.B.phyadd_high;
4224 	srb_phyaddr_lo32 = acb->srb_phyaddr.B.phyadd_low;
4225 	switch (acb->adapter_type) {
4226 	case ACB_ADAPTER_TYPE_A: {
4227 			if(srb_phyaddr_hi32 != 0) {
4228 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG);
4229 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, msgcode_rwbuffer[1], srb_phyaddr_hi32);
4230 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_SET_CONFIG);
4231 				if(!arcmsr_hba_wait_msgint_ready(acb)) {
4232 					printf( "arcmsr%d: 'set srb high part physical address' timeout \n", acb->pci_unit);
4233 					return FALSE;
4234 				}
4235 			}
4236 		}
4237 		break;
4238 		/*
4239 		***********************************************************************
4240 		**    if adapter type B, set window of "post command Q"
4241 		***********************************************************************
4242 		*/
4243 	case ACB_ADAPTER_TYPE_B: {
4244 			u_int32_t post_queue_phyaddr;
4245 			struct HBB_MessageUnit *phbbmu;
4246 
4247 			phbbmu = (struct HBB_MessageUnit *)acb->pmu;
4248 			phbbmu->postq_index = 0;
4249 			phbbmu->doneq_index = 0;
4250 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_SET_POST_WINDOW);
4251 			if(!arcmsr_hbb_wait_msgint_ready(acb)) {
4252 				printf( "arcmsr%d: 'set window of post command Q' timeout\n", acb->pci_unit);
4253 				return FALSE;
4254 			}
4255 			post_queue_phyaddr = srb_phyaddr + ARCMSR_SRBS_POOL_SIZE
4256 								+ offsetof(struct HBB_MessageUnit, post_qbuffer);
4257 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG); /* driver "set config" signature */
4258 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[1], srb_phyaddr_hi32); /* normal should be zero */
4259 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[2], post_queue_phyaddr); /* postQ size (256+8)*4 */
4260 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[3], post_queue_phyaddr+1056); /* doneQ size (256+8)*4 */
4261 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[4], 1056); /* srb maxQ size must be --> [(256+8)*4] */
4262 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_SET_CONFIG);
4263 			if(!arcmsr_hbb_wait_msgint_ready(acb)) {
4264 				printf( "arcmsr%d: 'set command Q window' timeout \n", acb->pci_unit);
4265 				return FALSE;
4266 			}
4267 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_START_DRIVER_MODE);
4268 			if(!arcmsr_hbb_wait_msgint_ready(acb)) {
4269 				printf( "arcmsr%d: 'start diver mode' timeout \n", acb->pci_unit);
4270 				return FALSE;
4271 			}
4272 		}
4273 		break;
4274 	case ACB_ADAPTER_TYPE_C: {
4275 			if(srb_phyaddr_hi32 != 0) {
4276 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG);
4277 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, msgcode_rwbuffer[1], srb_phyaddr_hi32);
4278 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_SET_CONFIG);
4279 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell,ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
4280 				if(!arcmsr_hbc_wait_msgint_ready(acb)) {
4281 					printf( "arcmsr%d: 'set srb high part physical address' timeout \n", acb->pci_unit);
4282 					return FALSE;
4283 				}
4284 			}
4285 		}
4286 		break;
4287 	case ACB_ADAPTER_TYPE_D: {
4288 			u_int32_t post_queue_phyaddr, done_queue_phyaddr;
4289 			struct HBD_MessageUnit0 *phbdmu;
4290 
4291 			phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
4292 			phbdmu->postq_index = 0;
4293 			phbdmu->doneq_index = 0x40FF;
4294 			post_queue_phyaddr = srb_phyaddr_lo32 + ARCMSR_SRBS_POOL_SIZE
4295 								+ offsetof(struct HBD_MessageUnit0, post_qbuffer);
4296 			done_queue_phyaddr = srb_phyaddr_lo32 + ARCMSR_SRBS_POOL_SIZE
4297 								+ offsetof(struct HBD_MessageUnit0, done_qbuffer);
4298 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG); /* driver "set config" signature */
4299 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[1], srb_phyaddr_hi32);
4300 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[2], post_queue_phyaddr); /* postQ base */
4301 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[3], done_queue_phyaddr); /* doneQ base */
4302 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[4], 0x100);
4303 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_SET_CONFIG);
4304 			if(!arcmsr_hbd_wait_msgint_ready(acb)) {
4305 				printf( "arcmsr%d: 'set srb high part physical address' timeout \n", acb->pci_unit);
4306 				return FALSE;
4307 			}
4308 		}
4309 		break;
4310 	case ACB_ADAPTER_TYPE_E: {
4311 			u_int32_t cdb_phyaddr_lo32;
4312 			cdb_phyaddr_lo32 = srb_phyaddr_lo32 + offsetof(struct CommandControlBlock, arcmsr_cdb);
4313 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG);
4314 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[1], ARCMSR_SIGNATURE_1884);
4315 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[2], cdb_phyaddr_lo32);
4316 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[3], srb_phyaddr_hi32);
4317 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[4], SRB_SIZE);
4318 			cdb_phyaddr_lo32 = srb_phyaddr_lo32 + ARCMSR_SRBS_POOL_SIZE;
4319 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[5], cdb_phyaddr_lo32);
4320 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[6], srb_phyaddr_hi32);
4321 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[7], COMPLETION_Q_POOL_SIZE);
4322 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_SET_CONFIG);
4323 			acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
4324 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
4325 			if(!arcmsr_hbe_wait_msgint_ready(acb)) {
4326 				printf( "arcmsr%d: 'set srb high part physical address' timeout \n", acb->pci_unit);
4327 				return FALSE;
4328 			}
4329 		}
4330 		break;
4331 	case ACB_ADAPTER_TYPE_F: {
4332 			u_int32_t cdb_phyaddr_lo32;
4333 			cdb_phyaddr_lo32 = srb_phyaddr_lo32 + offsetof(struct CommandControlBlock, arcmsr_cdb);
4334 			acb->msgcode_rwbuffer[0] = ARCMSR_SIGNATURE_SET_CONFIG;
4335 			acb->msgcode_rwbuffer[1] = ARCMSR_SIGNATURE_1886;
4336 			acb->msgcode_rwbuffer[2] = cdb_phyaddr_lo32;
4337 			acb->msgcode_rwbuffer[3] = srb_phyaddr_hi32;
4338 			acb->msgcode_rwbuffer[4] = SRB_SIZE;
4339 			cdb_phyaddr_lo32 = srb_phyaddr_lo32 + ARCMSR_SRBS_POOL_SIZE;
4340 			acb->msgcode_rwbuffer[5] = cdb_phyaddr_lo32;
4341 			acb->msgcode_rwbuffer[6] = srb_phyaddr_hi32;
4342 			acb->msgcode_rwbuffer[7] = COMPLETION_Q_POOL_SIZE;
4343 			CHIP_REG_WRITE32(HBF_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_SET_CONFIG);
4344 			acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
4345 			CHIP_REG_WRITE32(HBF_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
4346 			if(!arcmsr_hbe_wait_msgint_ready(acb)) {
4347 				printf( "arcmsr%d: 'set srb high part physical address' timeout \n", acb->pci_unit);
4348 				return FALSE;
4349 			}
4350 		}
4351 		break;
4352 	}
4353 	return (TRUE);
4354 }
4355 /*
4356 ************************************************************************
4357 ************************************************************************
4358 */
4359 static void arcmsr_enable_eoi_mode(struct AdapterControlBlock *acb)
4360 {
4361 	if (acb->adapter_type == ACB_ADAPTER_TYPE_B)
4362 	{
4363 		struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
4364 		WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_ACTIVE_EOI_MODE);
4365 		if(!arcmsr_hbb_wait_msgint_ready(acb)) {
4366 			printf( "arcmsr%d: 'iop enable eoi mode' timeout \n", acb->pci_unit);
4367 			return;
4368 		}
4369 	}
4370 }
4371 /*
4372 **********************************************************************
4373 **********************************************************************
4374 */
4375 static void arcmsr_iop_init(struct AdapterControlBlock *acb)
4376 {
4377 	u_int32_t intmask_org;
4378 
4379 	/* disable all outbound interrupt */
4380 	intmask_org = arcmsr_disable_allintr(acb);
4381 	arcmsr_wait_firmware_ready(acb);
4382 	arcmsr_iop_confirm(acb);
4383 	arcmsr_get_firmware_spec(acb);
4384 	/*start background rebuild*/
4385 	arcmsr_start_adapter_bgrb(acb);
4386 	/* empty doorbell Qbuffer if door bell ringed */
4387 	arcmsr_clear_doorbell_queue_buffer(acb);
4388 	arcmsr_enable_eoi_mode(acb);
4389 	/* enable outbound Post Queue, outbound doorbell Interrupt */
4390 	arcmsr_enable_allintr(acb, intmask_org);
4391 	acb->acb_flags |= ACB_F_IOP_INITED;
4392 }
4393 /*
4394 **********************************************************************
4395 **********************************************************************
4396 */
4397 static void arcmsr_map_free_srb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
4398 {
4399 	struct AdapterControlBlock *acb = arg;
4400 	struct CommandControlBlock *srb_tmp;
4401 	u_int32_t i;
4402 	unsigned long srb_phyaddr = (unsigned long)segs->ds_addr;
4403 
4404 	acb->srb_phyaddr.phyaddr = srb_phyaddr;
4405 	srb_tmp = (struct CommandControlBlock *)acb->uncacheptr;
4406 	for(i=0; i < ARCMSR_MAX_FREESRB_NUM; i++) {
4407 		if(bus_dmamap_create(acb->dm_segs_dmat,
4408 			 /*flags*/0, &srb_tmp->dm_segs_dmamap) != 0) {
4409 			acb->acb_flags |= ACB_F_MAPFREESRB_FAILD;
4410 			printf("arcmsr%d:"
4411 			" srb dmamap bus_dmamap_create error\n", acb->pci_unit);
4412 			return;
4413 		}
4414 		if((acb->adapter_type == ACB_ADAPTER_TYPE_C) || (acb->adapter_type == ACB_ADAPTER_TYPE_D)
4415 			 || (acb->adapter_type == ACB_ADAPTER_TYPE_E) || (acb->adapter_type == ACB_ADAPTER_TYPE_F))
4416 		{
4417 			srb_tmp->cdb_phyaddr_low = srb_phyaddr;
4418 			srb_tmp->cdb_phyaddr_high = (u_int32_t)((srb_phyaddr >> 16) >> 16);
4419 		}
4420 		else
4421 			srb_tmp->cdb_phyaddr_low = srb_phyaddr >> 5;
4422 		srb_tmp->acb = acb;
4423 		srb_tmp->smid = i << 16;
4424 		acb->srbworkingQ[i] = acb->psrb_pool[i] = srb_tmp;
4425 		srb_phyaddr = srb_phyaddr + SRB_SIZE;
4426 		srb_tmp = (struct CommandControlBlock *)((unsigned long)srb_tmp + SRB_SIZE);
4427 	}
4428 	if (acb->adapter_type == ACB_ADAPTER_TYPE_E)
4429 		acb->pCompletionQ = (pCompletion_Q)srb_tmp;
4430 	else if (acb->adapter_type == ACB_ADAPTER_TYPE_F) {
4431 		acb->pCompletionQ = (pCompletion_Q)srb_tmp;
4432 		acb->completeQ_phys = srb_phyaddr;
4433 		memset(acb->pCompletionQ, 0xff, COMPLETION_Q_POOL_SIZE);
4434 		acb->message_wbuffer = (u_int32_t *)((unsigned long)acb->pCompletionQ + COMPLETION_Q_POOL_SIZE);
4435 		acb->message_rbuffer = (u_int32_t *)((unsigned long)acb->message_wbuffer + 0x100);
4436 		acb->msgcode_rwbuffer = (u_int32_t *)((unsigned long)acb->message_wbuffer + 0x200);
4437 		memset((void *)acb->message_wbuffer, 0, MESG_RW_BUFFER_SIZE);
4438 	}
4439 	acb->vir2phy_offset = (unsigned long)srb_tmp - (unsigned long)srb_phyaddr;
4440 }
4441 /*
4442 ************************************************************************
4443 ************************************************************************
4444 */
4445 static void arcmsr_free_resource(struct AdapterControlBlock *acb)
4446 {
4447 	/* remove the control device */
4448 	if(acb->ioctl_dev != NULL) {
4449 		destroy_dev(acb->ioctl_dev);
4450 	}
4451 	bus_dmamap_unload(acb->srb_dmat, acb->srb_dmamap);
4452 	bus_dmamap_destroy(acb->srb_dmat, acb->srb_dmamap);
4453 	bus_dma_tag_destroy(acb->srb_dmat);
4454 	bus_dma_tag_destroy(acb->dm_segs_dmat);
4455 	bus_dma_tag_destroy(acb->parent_dmat);
4456 }
4457 /*
4458 ************************************************************************
4459 ************************************************************************
4460 */
4461 static void arcmsr_mutex_init(struct AdapterControlBlock *acb)
4462 {
4463 	ARCMSR_LOCK_INIT(&acb->isr_lock, "arcmsr isr lock");
4464 	ARCMSR_LOCK_INIT(&acb->srb_lock, "arcmsr srb lock");
4465 	ARCMSR_LOCK_INIT(&acb->postDone_lock, "arcmsr postQ lock");
4466 	ARCMSR_LOCK_INIT(&acb->qbuffer_lock, "arcmsr RW buffer lock");
4467 }
4468 /*
4469 ************************************************************************
4470 ************************************************************************
4471 */
4472 static void arcmsr_mutex_destroy(struct AdapterControlBlock *acb)
4473 {
4474 	ARCMSR_LOCK_DESTROY(&acb->qbuffer_lock);
4475 	ARCMSR_LOCK_DESTROY(&acb->postDone_lock);
4476 	ARCMSR_LOCK_DESTROY(&acb->srb_lock);
4477 	ARCMSR_LOCK_DESTROY(&acb->isr_lock);
4478 }
4479 /*
4480 ************************************************************************
4481 ************************************************************************
4482 */
4483 static u_int32_t arcmsr_initialize(device_t dev)
4484 {
4485 	struct AdapterControlBlock *acb = device_get_softc(dev);
4486 	u_int16_t pci_command;
4487 	int i, j,max_coherent_size;
4488 	u_int32_t vendor_dev_id;
4489 
4490 	vendor_dev_id = pci_get_devid(dev);
4491 	acb->vendor_device_id = vendor_dev_id;
4492 	acb->sub_device_id = pci_read_config(dev, PCIR_SUBDEV_0, 2);
4493 	switch (vendor_dev_id) {
4494 	case PCIDevVenIDARC1880:
4495 	case PCIDevVenIDARC1882:
4496 	case PCIDevVenIDARC1213:
4497 	case PCIDevVenIDARC1223: {
4498 			acb->adapter_type = ACB_ADAPTER_TYPE_C;
4499 			if ((acb->sub_device_id == ARECA_SUB_DEV_ID_1883) ||
4500 			    (acb->sub_device_id == ARECA_SUB_DEV_ID_1216) ||
4501 			    (acb->sub_device_id == ARECA_SUB_DEV_ID_1226))
4502 				acb->adapter_bus_speed = ACB_BUS_SPEED_12G;
4503 			else
4504 				acb->adapter_bus_speed = ACB_BUS_SPEED_6G;
4505 			max_coherent_size = ARCMSR_SRBS_POOL_SIZE;
4506 		}
4507 		break;
4508 	case PCIDevVenIDARC1884:
4509 		acb->adapter_type = ACB_ADAPTER_TYPE_E;
4510 		acb->adapter_bus_speed = ACB_BUS_SPEED_12G;
4511 		max_coherent_size = ARCMSR_SRBS_POOL_SIZE + COMPLETION_Q_POOL_SIZE;
4512 		acb->completionQ_entry = COMPLETION_Q_POOL_SIZE / sizeof(struct deliver_completeQ);
4513 		break;
4514 	case PCIDevVenIDARC1886_:
4515 	case PCIDevVenIDARC1886:
4516 		acb->adapter_type = ACB_ADAPTER_TYPE_F;
4517 		acb->adapter_bus_speed = ACB_BUS_SPEED_12G;
4518 		max_coherent_size = ARCMSR_SRBS_POOL_SIZE + COMPLETION_Q_POOL_SIZE + MESG_RW_BUFFER_SIZE;
4519 		acb->completionQ_entry = COMPLETION_Q_POOL_SIZE / sizeof(struct deliver_completeQ);
4520 		break;
4521 	case PCIDevVenIDARC1214: {
4522 			acb->adapter_type = ACB_ADAPTER_TYPE_D;
4523 			acb->adapter_bus_speed = ACB_BUS_SPEED_6G;
4524 			max_coherent_size = ARCMSR_SRBS_POOL_SIZE + (sizeof(struct HBD_MessageUnit0));
4525 		}
4526 		break;
4527 	case PCIDevVenIDARC1200:
4528 	case PCIDevVenIDARC1201: {
4529 			acb->adapter_type = ACB_ADAPTER_TYPE_B;
4530 			acb->adapter_bus_speed = ACB_BUS_SPEED_3G;
4531 			max_coherent_size = ARCMSR_SRBS_POOL_SIZE + (sizeof(struct HBB_MessageUnit));
4532 		}
4533 		break;
4534 	case PCIDevVenIDARC1203: {
4535 			acb->adapter_type = ACB_ADAPTER_TYPE_B;
4536 			acb->adapter_bus_speed = ACB_BUS_SPEED_6G;
4537 			max_coherent_size = ARCMSR_SRBS_POOL_SIZE + (sizeof(struct HBB_MessageUnit));
4538 		}
4539 		break;
4540 	case PCIDevVenIDARC1110:
4541 	case PCIDevVenIDARC1120:
4542 	case PCIDevVenIDARC1130:
4543 	case PCIDevVenIDARC1160:
4544 	case PCIDevVenIDARC1170:
4545 	case PCIDevVenIDARC1210:
4546 	case PCIDevVenIDARC1220:
4547 	case PCIDevVenIDARC1230:
4548 	case PCIDevVenIDARC1231:
4549 	case PCIDevVenIDARC1260:
4550 	case PCIDevVenIDARC1261:
4551 	case PCIDevVenIDARC1270:
4552 	case PCIDevVenIDARC1280:
4553 	case PCIDevVenIDARC1212:
4554 	case PCIDevVenIDARC1222:
4555 	case PCIDevVenIDARC1380:
4556 	case PCIDevVenIDARC1381:
4557 	case PCIDevVenIDARC1680:
4558 	case PCIDevVenIDARC1681: {
4559 			acb->adapter_type = ACB_ADAPTER_TYPE_A;
4560 			acb->adapter_bus_speed = ACB_BUS_SPEED_3G;
4561 			max_coherent_size = ARCMSR_SRBS_POOL_SIZE;
4562 		}
4563 		break;
4564 	default: {
4565 			printf("arcmsr%d:"
4566 			" unknown RAID adapter type \n", device_get_unit(dev));
4567 			return ENOMEM;
4568 		}
4569 	}
4570 	if(bus_dma_tag_create(  /*PCI parent*/		bus_get_dma_tag(dev),
4571 				/*alignemnt*/		1,
4572 				/*boundary*/		0,
4573 				/*lowaddr*/		BUS_SPACE_MAXADDR,
4574 				/*highaddr*/		BUS_SPACE_MAXADDR,
4575 				/*filter*/		NULL,
4576 				/*filterarg*/		NULL,
4577 				/*maxsize*/		BUS_SPACE_MAXSIZE_32BIT,
4578 				/*nsegments*/		BUS_SPACE_UNRESTRICTED,
4579 				/*maxsegsz*/		BUS_SPACE_MAXSIZE_32BIT,
4580 				/*flags*/		0,
4581 				/*lockfunc*/		NULL,
4582 				/*lockarg*/		NULL,
4583 							&acb->parent_dmat) != 0)
4584 	{
4585 		printf("arcmsr%d: parent_dmat bus_dma_tag_create failure!\n", device_get_unit(dev));
4586 		return ENOMEM;
4587 	}
4588 
4589 	/* Create a single tag describing a region large enough to hold all of the s/g lists we will need. */
4590 	if(bus_dma_tag_create(  /*parent_dmat*/		acb->parent_dmat,
4591 				/*alignment*/		1,
4592 				/*boundary*/		0,
4593 #ifdef PAE
4594 				/*lowaddr*/		BUS_SPACE_MAXADDR_32BIT,
4595 #else
4596 				/*lowaddr*/		BUS_SPACE_MAXADDR,
4597 #endif
4598 				/*highaddr*/		BUS_SPACE_MAXADDR,
4599 				/*filter*/		NULL,
4600 				/*filterarg*/		NULL,
4601 				/*maxsize*/		ARCMSR_MAX_SG_ENTRIES * PAGE_SIZE * ARCMSR_MAX_FREESRB_NUM,
4602 				/*nsegments*/		ARCMSR_MAX_SG_ENTRIES,
4603 				/*maxsegsz*/		BUS_SPACE_MAXSIZE_32BIT,
4604 				/*flags*/		0,
4605 				/*lockfunc*/		busdma_lock_mutex,
4606 				/*lockarg*/		&acb->isr_lock,
4607 							&acb->dm_segs_dmat) != 0)
4608 	{
4609 		bus_dma_tag_destroy(acb->parent_dmat);
4610 		printf("arcmsr%d: dm_segs_dmat bus_dma_tag_create failure!\n", device_get_unit(dev));
4611 		return ENOMEM;
4612 	}
4613 
4614 	/* DMA tag for our srb structures.... Allocate the freesrb memory */
4615 	if(bus_dma_tag_create(  /*parent_dmat*/		acb->parent_dmat,
4616 				/*alignment*/		0x20,
4617 				/*boundary*/		0,
4618 				/*lowaddr*/		BUS_SPACE_MAXADDR_32BIT,
4619 				/*highaddr*/		BUS_SPACE_MAXADDR,
4620 				/*filter*/		NULL,
4621 				/*filterarg*/		NULL,
4622 				/*maxsize*/		max_coherent_size,
4623 				/*nsegments*/		1,
4624 				/*maxsegsz*/		BUS_SPACE_MAXSIZE_32BIT,
4625 				/*flags*/		0,
4626 				/*lockfunc*/		NULL,
4627 				/*lockarg*/		NULL,
4628 							&acb->srb_dmat) != 0)
4629 	{
4630 		bus_dma_tag_destroy(acb->dm_segs_dmat);
4631 		bus_dma_tag_destroy(acb->parent_dmat);
4632 		printf("arcmsr%d: srb_dmat bus_dma_tag_create failure!\n", device_get_unit(dev));
4633 		return ENXIO;
4634 	}
4635 	/* Allocation for our srbs */
4636 	if(bus_dmamem_alloc(acb->srb_dmat, (void **)&acb->uncacheptr, BUS_DMA_WAITOK | BUS_DMA_COHERENT | BUS_DMA_ZERO, &acb->srb_dmamap) != 0) {
4637 		bus_dma_tag_destroy(acb->srb_dmat);
4638 		bus_dma_tag_destroy(acb->dm_segs_dmat);
4639 		bus_dma_tag_destroy(acb->parent_dmat);
4640 		printf("arcmsr%d: srb_dmat bus_dmamem_alloc failure!\n", device_get_unit(dev));
4641 		return ENXIO;
4642 	}
4643 	/* And permanently map them */
4644 	if(bus_dmamap_load(acb->srb_dmat, acb->srb_dmamap, acb->uncacheptr, max_coherent_size, arcmsr_map_free_srb, acb, /*flags*/0)) {
4645 		bus_dma_tag_destroy(acb->srb_dmat);
4646 		bus_dma_tag_destroy(acb->dm_segs_dmat);
4647 		bus_dma_tag_destroy(acb->parent_dmat);
4648 		printf("arcmsr%d: srb_dmat bus_dmamap_load failure!\n", device_get_unit(dev));
4649 		return ENXIO;
4650 	}
4651 	pci_command = pci_read_config(dev, PCIR_COMMAND, 2);
4652 	pci_command |= PCIM_CMD_BUSMASTEREN;
4653 	pci_command |= PCIM_CMD_PERRESPEN;
4654 	pci_command |= PCIM_CMD_MWRICEN;
4655 	/* Enable Busmaster */
4656 	pci_write_config(dev, PCIR_COMMAND, pci_command, 2);
4657 	switch(acb->adapter_type) {
4658 	case ACB_ADAPTER_TYPE_A: {
4659 		u_int32_t rid0 = PCIR_BAR(0);
4660 		vm_offset_t	mem_base0;
4661 
4662 		acb->sys_res_arcmsr[0] = bus_alloc_resource_any(dev,SYS_RES_MEMORY, &rid0, RF_ACTIVE);
4663 		if(acb->sys_res_arcmsr[0] == NULL) {
4664 			arcmsr_free_resource(acb);
4665 			printf("arcmsr%d: bus_alloc_resource failure!\n", device_get_unit(dev));
4666 			return ENOMEM;
4667 		}
4668 		if(rman_get_start(acb->sys_res_arcmsr[0]) <= 0) {
4669 			arcmsr_free_resource(acb);
4670 			printf("arcmsr%d: rman_get_start failure!\n", device_get_unit(dev));
4671 			return ENXIO;
4672 		}
4673 		mem_base0 = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[0]);
4674 		if(mem_base0 == 0) {
4675 			arcmsr_free_resource(acb);
4676 			printf("arcmsr%d: rman_get_virtual failure!\n", device_get_unit(dev));
4677 			return ENXIO;
4678 		}
4679 		acb->btag[0] = rman_get_bustag(acb->sys_res_arcmsr[0]);
4680 		acb->bhandle[0] = rman_get_bushandle(acb->sys_res_arcmsr[0]);
4681 		acb->pmu = (struct MessageUnit_UNION *)mem_base0;
4682 		acb->rid[0] = rid0;
4683 		}
4684 		break;
4685 	case ACB_ADAPTER_TYPE_B: {
4686 		struct HBB_MessageUnit *phbbmu;
4687 		struct CommandControlBlock *freesrb;
4688 		u_int32_t rid[]={ PCIR_BAR(0), PCIR_BAR(2) };
4689 		vm_offset_t	mem_base[]={0,0};
4690 		for(i=0; i < 2; i++) {
4691 			acb->sys_res_arcmsr[i] = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid[i], RF_ACTIVE);
4692 			if(acb->sys_res_arcmsr[i] == NULL) {
4693 				arcmsr_free_resource(acb);
4694 				printf("arcmsr%d: bus_alloc_resource %d failure!\n", device_get_unit(dev), i);
4695 				return ENOMEM;
4696 			}
4697 			if(rman_get_start(acb->sys_res_arcmsr[i]) <= 0) {
4698 				arcmsr_free_resource(acb);
4699 				printf("arcmsr%d: rman_get_start %d failure!\n", device_get_unit(dev), i);
4700 				return ENXIO;
4701 			}
4702 			mem_base[i] = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[i]);
4703 			if(mem_base[i] == 0) {
4704 				arcmsr_free_resource(acb);
4705 				printf("arcmsr%d: rman_get_virtual %d failure!\n", device_get_unit(dev), i);
4706 				return ENXIO;
4707 			}
4708 			acb->btag[i] = rman_get_bustag(acb->sys_res_arcmsr[i]);
4709 			acb->bhandle[i] = rman_get_bushandle(acb->sys_res_arcmsr[i]);
4710 		}
4711 		freesrb = (struct CommandControlBlock *)acb->uncacheptr;
4712 		acb->pmu = (struct MessageUnit_UNION *)((unsigned long)freesrb+ARCMSR_SRBS_POOL_SIZE);
4713 		phbbmu = (struct HBB_MessageUnit *)acb->pmu;
4714 		phbbmu->hbb_doorbell = (struct HBB_DOORBELL *)mem_base[0];
4715 		phbbmu->hbb_rwbuffer = (struct HBB_RWBUFFER *)mem_base[1];
4716 		if (vendor_dev_id == PCIDevVenIDARC1203) {
4717 			phbbmu->drv2iop_doorbell = offsetof(struct HBB_DOORBELL_1203, drv2iop_doorbell);
4718 			phbbmu->drv2iop_doorbell_mask = offsetof(struct HBB_DOORBELL_1203, drv2iop_doorbell_mask);
4719 			phbbmu->iop2drv_doorbell = offsetof(struct HBB_DOORBELL_1203, iop2drv_doorbell);
4720 			phbbmu->iop2drv_doorbell_mask = offsetof(struct HBB_DOORBELL_1203, iop2drv_doorbell_mask);
4721 		} else {
4722 			phbbmu->drv2iop_doorbell = offsetof(struct HBB_DOORBELL, drv2iop_doorbell);
4723 			phbbmu->drv2iop_doorbell_mask = offsetof(struct HBB_DOORBELL, drv2iop_doorbell_mask);
4724 			phbbmu->iop2drv_doorbell = offsetof(struct HBB_DOORBELL, iop2drv_doorbell);
4725 			phbbmu->iop2drv_doorbell_mask = offsetof(struct HBB_DOORBELL, iop2drv_doorbell_mask);
4726 		}
4727 		acb->rid[0] = rid[0];
4728 		acb->rid[1] = rid[1];
4729 		}
4730 		break;
4731 	case ACB_ADAPTER_TYPE_C: {
4732 		u_int32_t rid0 = PCIR_BAR(1);
4733 		vm_offset_t	mem_base0;
4734 
4735 		acb->sys_res_arcmsr[0] = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid0, RF_ACTIVE);
4736 		if(acb->sys_res_arcmsr[0] == NULL) {
4737 			arcmsr_free_resource(acb);
4738 			printf("arcmsr%d: bus_alloc_resource failure!\n", device_get_unit(dev));
4739 			return ENOMEM;
4740 		}
4741 		if(rman_get_start(acb->sys_res_arcmsr[0]) <= 0) {
4742 			arcmsr_free_resource(acb);
4743 			printf("arcmsr%d: rman_get_start failure!\n", device_get_unit(dev));
4744 			return ENXIO;
4745 		}
4746 		mem_base0 = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[0]);
4747 		if(mem_base0 == 0) {
4748 			arcmsr_free_resource(acb);
4749 			printf("arcmsr%d: rman_get_virtual failure!\n", device_get_unit(dev));
4750 			return ENXIO;
4751 		}
4752 		acb->btag[0] = rman_get_bustag(acb->sys_res_arcmsr[0]);
4753 		acb->bhandle[0] = rman_get_bushandle(acb->sys_res_arcmsr[0]);
4754 		acb->pmu = (struct MessageUnit_UNION *)mem_base0;
4755 		acb->rid[0] = rid0;
4756 		}
4757 		break;
4758 	case ACB_ADAPTER_TYPE_D: {
4759 		struct HBD_MessageUnit0 *phbdmu;
4760 		u_int32_t rid0 = PCIR_BAR(0);
4761 		vm_offset_t	mem_base0;
4762 
4763 		acb->sys_res_arcmsr[0] = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid0, RF_ACTIVE);
4764 		if(acb->sys_res_arcmsr[0] == NULL) {
4765 			arcmsr_free_resource(acb);
4766 			printf("arcmsr%d: bus_alloc_resource failure!\n", device_get_unit(dev));
4767 			return ENOMEM;
4768 		}
4769 		if(rman_get_start(acb->sys_res_arcmsr[0]) <= 0) {
4770 			arcmsr_free_resource(acb);
4771 			printf("arcmsr%d: rman_get_start failure!\n", device_get_unit(dev));
4772 			return ENXIO;
4773 		}
4774 		mem_base0 = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[0]);
4775 		if(mem_base0 == 0) {
4776 			arcmsr_free_resource(acb);
4777 			printf("arcmsr%d: rman_get_virtual failure!\n", device_get_unit(dev));
4778 			return ENXIO;
4779 		}
4780 		acb->btag[0] = rman_get_bustag(acb->sys_res_arcmsr[0]);
4781 		acb->bhandle[0] = rman_get_bushandle(acb->sys_res_arcmsr[0]);
4782 		acb->pmu = (struct MessageUnit_UNION *)((unsigned long)acb->uncacheptr+ARCMSR_SRBS_POOL_SIZE);
4783 		phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
4784 		phbdmu->phbdmu = (struct HBD_MessageUnit *)mem_base0;
4785 		acb->rid[0] = rid0;
4786 		}
4787 		break;
4788 	case ACB_ADAPTER_TYPE_E: {
4789 		u_int32_t rid0 = PCIR_BAR(1);
4790 		vm_offset_t	mem_base0;
4791 
4792 		acb->sys_res_arcmsr[0] = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid0, RF_ACTIVE);
4793 		if(acb->sys_res_arcmsr[0] == NULL) {
4794 			arcmsr_free_resource(acb);
4795 			printf("arcmsr%d: bus_alloc_resource failure!\n", device_get_unit(dev));
4796 			return ENOMEM;
4797 		}
4798 		if(rman_get_start(acb->sys_res_arcmsr[0]) <= 0) {
4799 			arcmsr_free_resource(acb);
4800 			printf("arcmsr%d: rman_get_start failure!\n", device_get_unit(dev));
4801 			return ENXIO;
4802 		}
4803 		mem_base0 = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[0]);
4804 		if(mem_base0 == 0) {
4805 			arcmsr_free_resource(acb);
4806 			printf("arcmsr%d: rman_get_virtual failure!\n", device_get_unit(dev));
4807 			return ENXIO;
4808 		}
4809 		acb->btag[0] = rman_get_bustag(acb->sys_res_arcmsr[0]);
4810 		acb->bhandle[0] = rman_get_bushandle(acb->sys_res_arcmsr[0]);
4811 		acb->pmu = (struct MessageUnit_UNION *)mem_base0;
4812 		acb->doneq_index = 0;
4813 		acb->in_doorbell = 0;
4814 		acb->out_doorbell = 0;
4815 		acb->rid[0] = rid0;
4816 		CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_status, 0); /*clear interrupt*/
4817 		CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, ARCMSR_HBEMU_DOORBELL_SYNC); /* synchronize doorbell to 0 */
4818 		}
4819 		break;
4820 	case ACB_ADAPTER_TYPE_F: {
4821 		u_int32_t rid0 = PCIR_BAR(0);
4822 		vm_offset_t	mem_base0;
4823 		unsigned long	host_buffer_dma;
4824 
4825 		acb->sys_res_arcmsr[0] = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid0, RF_ACTIVE);
4826 		if(acb->sys_res_arcmsr[0] == NULL) {
4827 			arcmsr_free_resource(acb);
4828 			printf("arcmsr%d: bus_alloc_resource failure!\n", device_get_unit(dev));
4829 			return ENOMEM;
4830 		}
4831 		if(rman_get_start(acb->sys_res_arcmsr[0]) <= 0) {
4832 			arcmsr_free_resource(acb);
4833 			printf("arcmsr%d: rman_get_start failure!\n", device_get_unit(dev));
4834 			return ENXIO;
4835 		}
4836 		mem_base0 = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[0]);
4837 		if(mem_base0 == 0) {
4838 			arcmsr_free_resource(acb);
4839 			printf("arcmsr%d: rman_get_virtual failure!\n", device_get_unit(dev));
4840 			return ENXIO;
4841 		}
4842 		acb->btag[0] = rman_get_bustag(acb->sys_res_arcmsr[0]);
4843 		acb->bhandle[0] = rman_get_bushandle(acb->sys_res_arcmsr[0]);
4844 		acb->pmu = (struct MessageUnit_UNION *)mem_base0;
4845 		acb->doneq_index = 0;
4846 		acb->in_doorbell = 0;
4847 		acb->out_doorbell = 0;
4848 		acb->rid[0] = rid0;
4849 		CHIP_REG_WRITE32(HBF_MessageUnit, 0, host_int_status, 0); /*clear interrupt*/
4850 		CHIP_REG_WRITE32(HBF_MessageUnit, 0, iobound_doorbell, ARCMSR_HBEMU_DOORBELL_SYNC); /* synchronize doorbell to 0 */
4851 		arcmsr_wait_firmware_ready(acb);
4852 		host_buffer_dma = acb->completeQ_phys + COMPLETION_Q_POOL_SIZE;
4853 		CHIP_REG_WRITE32(HBF_MessageUnit, 0, inbound_msgaddr0, (u_int32_t)(host_buffer_dma | 1));  /* host buffer low addr, bit0:1 all buffer active */
4854 		CHIP_REG_WRITE32(HBF_MessageUnit, 0, inbound_msgaddr1, (u_int32_t)((host_buffer_dma >> 16) >> 16));/* host buffer high addr */
4855 		CHIP_REG_WRITE32(HBF_MessageUnit, 0, iobound_doorbell, ARCMSR_HBFMU_DOORBELL_SYNC1);       /* set host buffer physical address */
4856 		}
4857 		break;
4858 	}
4859 	if(acb->acb_flags & ACB_F_MAPFREESRB_FAILD) {
4860 		arcmsr_free_resource(acb);
4861 		printf("arcmsr%d: map free srb failure!\n", device_get_unit(dev));
4862 		return ENXIO;
4863 	}
4864 	acb->acb_flags  |= (ACB_F_MESSAGE_WQBUFFER_CLEARED|ACB_F_MESSAGE_RQBUFFER_CLEARED|ACB_F_MESSAGE_WQBUFFER_READ);
4865 	acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER;
4866 	/*
4867 	********************************************************************
4868 	** init raid volume state
4869 	********************************************************************
4870 	*/
4871 	for(i=0; i < ARCMSR_MAX_TARGETID; i++) {
4872 		for(j=0; j < ARCMSR_MAX_TARGETLUN; j++) {
4873 			acb->devstate[i][j] = ARECA_RAID_GONE;
4874 		}
4875 	}
4876 	arcmsr_iop_init(acb);
4877 	return(0);
4878 }
4879 
4880 static int arcmsr_setup_msix(struct AdapterControlBlock *acb)
4881 {
4882 	int i;
4883 
4884 	for (i = 0; i < acb->msix_vectors; i++) {
4885 		acb->irq_id[i] = 1 + i;
4886 		acb->irqres[i] = bus_alloc_resource_any(acb->pci_dev,
4887 		    SYS_RES_IRQ, &acb->irq_id[i], RF_ACTIVE);
4888 		if (acb->irqres[i] == NULL) {
4889 			printf("arcmsr: Can't allocate MSI-X resource\n");
4890 			goto irq_alloc_failed;
4891 		}
4892 		if (bus_setup_intr(acb->pci_dev, acb->irqres[i],
4893 		    INTR_MPSAFE | INTR_TYPE_CAM, NULL, arcmsr_intr_handler,
4894 		    acb, &acb->ih[i])) {
4895 			printf("arcmsr: Cannot set up MSI-X interrupt handler\n");
4896 			goto irq_alloc_failed;
4897 		}
4898 	}
4899 	printf("arcmsr: MSI-X INT enabled\n");
4900 	acb->acb_flags |= ACB_F_MSIX_ENABLED;
4901 	return TRUE;
4902 
4903 irq_alloc_failed:
4904 	arcmsr_teardown_intr(acb->pci_dev, acb);
4905 	return FALSE;
4906 }
4907 
4908 /*
4909 ************************************************************************
4910 ************************************************************************
4911 */
4912 static int arcmsr_attach(device_t dev)
4913 {
4914 	struct make_dev_args args;
4915 	struct AdapterControlBlock *acb=(struct AdapterControlBlock *)device_get_softc(dev);
4916 	u_int32_t unit=device_get_unit(dev);
4917 	struct ccb_setasync csa;
4918 	struct cam_devq	*devq;	/* Device Queue to use for this SIM */
4919 	struct resource	*irqres;
4920 
4921 	if(acb == NULL) {
4922 		printf("arcmsr%d: cannot allocate softc\n", unit);
4923 		return (ENOMEM);
4924 	}
4925 	arcmsr_mutex_init(acb);
4926 	acb->pci_dev = dev;
4927 	acb->pci_unit = unit;
4928 	if(arcmsr_initialize(dev)) {
4929 		printf("arcmsr%d: initialize failure!\n", unit);
4930 		goto initialize_failed;
4931 	}
4932 	/* After setting up the adapter, map our interrupt */
4933 	acb->msix_vectors = ARCMSR_NUM_MSIX_VECTORS;
4934 	if (pci_alloc_msix(dev, &acb->msix_vectors) == 0) {
4935 		if (arcmsr_setup_msix(acb) == TRUE)
4936 			goto irqx;
4937 	}
4938 	acb->irq_id[0] = 0;
4939 	irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ, &acb->irq_id[0], RF_SHAREABLE | RF_ACTIVE);
4940 	if(irqres == NULL ||
4941 		bus_setup_intr(dev, irqres, INTR_TYPE_CAM|INTR_ENTROPY|INTR_MPSAFE, NULL, arcmsr_intr_handler, acb, &acb->ih[0])) {
4942 		printf("arcmsr%d: unable to register interrupt handler!\n", unit);
4943 		goto setup_intr_failed;
4944 	}
4945 	acb->irqres[0] = irqres;
4946 irqx:
4947 	/*
4948 	 * Now let the CAM generic SCSI layer find the SCSI devices on
4949 	 * the bus *  start queue to reset to the idle loop. *
4950 	 * Create device queue of SIM(s) *  (MAX_START_JOB - 1) :
4951 	 * max_sim_transactions
4952 	*/
4953 	devq = cam_simq_alloc(acb->maxOutstanding);
4954 	if(devq == NULL) {
4955 		printf("arcmsr%d: cam_simq_alloc failure!\n", unit);
4956 		goto simq_alloc_failed;
4957 	}
4958 	acb->psim = cam_sim_alloc(arcmsr_action, arcmsr_poll, "arcmsr", acb, unit, &acb->isr_lock, 1, ARCMSR_MAX_OUTSTANDING_CMD, devq);
4959 	if(acb->psim == NULL) {
4960 		printf("arcmsr%d: cam_sim_alloc failure!\n", unit);
4961 		goto sim_alloc_failed;
4962 	}
4963 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
4964 	if(xpt_bus_register(acb->psim, dev, 0) != CAM_SUCCESS) {
4965 		printf("arcmsr%d: xpt_bus_register failure!\n", unit);
4966 		goto xpt_bus_failed;
4967 	}
4968 	if(xpt_create_path(&acb->ppath, /* periph */ NULL, cam_sim_path(acb->psim), CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
4969 		printf("arcmsr%d: xpt_create_path failure!\n", unit);
4970 		goto xpt_path_failed;
4971 	}
4972 	/*
4973 	****************************************************
4974 	*/
4975 	memset(&csa, 0, sizeof(csa));
4976 	xpt_setup_ccb(&csa.ccb_h, acb->ppath, /*priority*/5);
4977 	csa.ccb_h.func_code = XPT_SASYNC_CB;
4978 	csa.event_enable = AC_FOUND_DEVICE|AC_LOST_DEVICE;
4979 	csa.callback = arcmsr_async;
4980 	csa.callback_arg = acb->psim;
4981 	xpt_action((union ccb *)&csa);
4982 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
4983 	/* Create the control device.  */
4984 	make_dev_args_init(&args);
4985 	args.mda_devsw = &arcmsr_cdevsw;
4986 	args.mda_uid = UID_ROOT;
4987 	args.mda_gid = GID_WHEEL /* GID_OPERATOR */;
4988 	args.mda_mode = S_IRUSR | S_IWUSR;
4989 	args.mda_si_drv1 = acb;
4990 	(void)make_dev_s(&args, &acb->ioctl_dev, "arcmsr%d", unit);
4991 
4992 	(void)make_dev_alias(acb->ioctl_dev, "arc%d", unit);
4993 	arcmsr_callout_init(&acb->devmap_callout);
4994 	callout_reset(&acb->devmap_callout, 60 * hz, arcmsr_polling_devmap, acb);
4995 	return (0);
4996 xpt_path_failed:
4997 	xpt_bus_deregister(cam_sim_path(acb->psim));
4998 xpt_bus_failed:
4999 	cam_sim_free(acb->psim, /* free_simq */ TRUE);
5000 sim_alloc_failed:
5001 	cam_simq_free(devq);
5002 simq_alloc_failed:
5003 	arcmsr_teardown_intr(dev, acb);
5004 setup_intr_failed:
5005 	arcmsr_free_resource(acb);
5006 initialize_failed:
5007 	arcmsr_mutex_destroy(acb);
5008 	return ENXIO;
5009 }
5010 
5011 /*
5012 ************************************************************************
5013 ************************************************************************
5014 */
5015 static int arcmsr_probe(device_t dev)
5016 {
5017 	u_int32_t id;
5018 	u_int16_t sub_device_id;
5019 	static char buf[256];
5020 	char x_type[]={"unknown"};
5021 	char *type;
5022 	int raid6 = 1;
5023 
5024 	if (pci_get_vendor(dev) != PCI_VENDOR_ID_ARECA) {
5025 		return (ENXIO);
5026 	}
5027 	sub_device_id = pci_read_config(dev, PCIR_SUBDEV_0, 2);
5028 	switch(id = pci_get_devid(dev)) {
5029 	case PCIDevVenIDARC1110:
5030 	case PCIDevVenIDARC1200:
5031 	case PCIDevVenIDARC1201:
5032 	case PCIDevVenIDARC1210:
5033 		raid6 = 0;
5034 		/*FALLTHRU*/
5035 	case PCIDevVenIDARC1120:
5036 	case PCIDevVenIDARC1130:
5037 	case PCIDevVenIDARC1160:
5038 	case PCIDevVenIDARC1170:
5039 	case PCIDevVenIDARC1220:
5040 	case PCIDevVenIDARC1230:
5041 	case PCIDevVenIDARC1231:
5042 	case PCIDevVenIDARC1260:
5043 	case PCIDevVenIDARC1261:
5044 	case PCIDevVenIDARC1270:
5045 	case PCIDevVenIDARC1280:
5046 		type = "SATA 3G";
5047 		break;
5048 	case PCIDevVenIDARC1212:
5049 	case PCIDevVenIDARC1222:
5050 	case PCIDevVenIDARC1380:
5051 	case PCIDevVenIDARC1381:
5052 	case PCIDevVenIDARC1680:
5053 	case PCIDevVenIDARC1681:
5054 		type = "SAS 3G";
5055 		break;
5056 	case PCIDevVenIDARC1880:
5057 	case PCIDevVenIDARC1882:
5058 	case PCIDevVenIDARC1213:
5059 	case PCIDevVenIDARC1223:
5060 		if ((sub_device_id == ARECA_SUB_DEV_ID_1883) ||
5061 		    (sub_device_id == ARECA_SUB_DEV_ID_1216) ||
5062 		    (sub_device_id == ARECA_SUB_DEV_ID_1226))
5063 			type = "SAS 12G";
5064 		else
5065 			type = "SAS 6G";
5066 		break;
5067 	case PCIDevVenIDARC1884:
5068 		type = "SAS 12G";
5069 		break;
5070 	case PCIDevVenIDARC1886_:
5071 	case PCIDevVenIDARC1886:
5072 		type = "NVME,SAS-12G,SATA-6G";
5073 		break;
5074 	case PCIDevVenIDARC1214:
5075 	case PCIDevVenIDARC1203:
5076 		type = "SATA 6G";
5077 		break;
5078 	default:
5079 		type = x_type;
5080 		raid6 = 0;
5081 		break;
5082 	}
5083 	if(type == x_type)
5084 		return(ENXIO);
5085 	sprintf(buf, "Areca %s Host Adapter RAID Controller %s\n%s\n",
5086 		type, raid6 ? "(RAID6 capable)" : "", ARCMSR_DRIVER_VERSION);
5087 	device_set_desc_copy(dev, buf);
5088 	return (BUS_PROBE_DEFAULT);
5089 }
5090 /*
5091 ************************************************************************
5092 ************************************************************************
5093 */
5094 static int arcmsr_shutdown(device_t dev)
5095 {
5096 	u_int32_t  i;
5097 	struct CommandControlBlock *srb;
5098 	struct AdapterControlBlock *acb=(struct AdapterControlBlock *)device_get_softc(dev);
5099 
5100 	/* stop adapter background rebuild */
5101 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
5102 	/* disable all outbound interrupt */
5103 	arcmsr_disable_allintr(acb);
5104 	arcmsr_stop_adapter_bgrb(acb);
5105 	arcmsr_flush_adapter_cache(acb);
5106 	/* abort all outstanding command */
5107 	acb->acb_flags |= ACB_F_SCSISTOPADAPTER;
5108 	acb->acb_flags &= ~ACB_F_IOP_INITED;
5109 	if(acb->srboutstandingcount != 0) {
5110 		/*clear and abort all outbound posted Q*/
5111 		arcmsr_done4abort_postqueue(acb);
5112 		/* talk to iop 331 outstanding command aborted*/
5113 		arcmsr_abort_allcmd(acb);
5114 		for(i=0; i < ARCMSR_MAX_FREESRB_NUM; i++) {
5115 			srb = acb->psrb_pool[i];
5116 			if(srb->srb_state == ARCMSR_SRB_START) {
5117 				srb->srb_state = ARCMSR_SRB_ABORTED;
5118 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
5119 				arcmsr_srb_complete(srb, 1);
5120 			}
5121 		}
5122 	}
5123 	acb->srboutstandingcount = 0;
5124 	acb->workingsrb_doneindex = 0;
5125 	acb->workingsrb_startindex = 0;
5126 	acb->pktRequestCount = 0;
5127 	acb->pktReturnCount = 0;
5128 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
5129 	return (0);
5130 }
5131 /*
5132 ************************************************************************
5133 ************************************************************************
5134 */
5135 static void arcmsr_teardown_intr(device_t dev, struct AdapterControlBlock *acb)
5136 {
5137 	int i;
5138 
5139 	if (acb->acb_flags & ACB_F_MSIX_ENABLED) {
5140 		for (i = 0; i < acb->msix_vectors; i++) {
5141 			if (acb->ih[i])
5142 				bus_teardown_intr(dev, acb->irqres[i], acb->ih[i]);
5143 			if (acb->irqres[i] != NULL)
5144 				bus_release_resource(dev, SYS_RES_IRQ,
5145 				    acb->irq_id[i], acb->irqres[i]);
5146 
5147 			acb->ih[i] = NULL;
5148 		}
5149 		pci_release_msi(dev);
5150 	} else {
5151 		if (acb->ih[0])
5152 			bus_teardown_intr(dev, acb->irqres[0], acb->ih[0]);
5153 		if (acb->irqres[0] != NULL)
5154 			bus_release_resource(dev, SYS_RES_IRQ,
5155 			    acb->irq_id[0], acb->irqres[0]);
5156 		acb->ih[0] = NULL;
5157 	}
5158 
5159 }
5160 /*
5161 ************************************************************************
5162 ************************************************************************
5163 */
5164 static int arcmsr_detach(device_t dev)
5165 {
5166 	struct AdapterControlBlock *acb=(struct AdapterControlBlock *)device_get_softc(dev);
5167 	int i;
5168 
5169 	callout_stop(&acb->devmap_callout);
5170 	arcmsr_teardown_intr(dev, acb);
5171 	arcmsr_shutdown(dev);
5172 	arcmsr_free_resource(acb);
5173 	for(i=0; (acb->sys_res_arcmsr[i]!=NULL) && (i<2); i++) {
5174 		bus_release_resource(dev, SYS_RES_MEMORY, acb->rid[i], acb->sys_res_arcmsr[i]);
5175 	}
5176 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
5177 	xpt_async(AC_LOST_DEVICE, acb->ppath, NULL);
5178 	xpt_free_path(acb->ppath);
5179 	xpt_bus_deregister(cam_sim_path(acb->psim));
5180 	cam_sim_free(acb->psim, TRUE);
5181 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
5182 	arcmsr_mutex_destroy(acb);
5183 	return (0);
5184 }
5185 
5186 #ifdef ARCMSR_DEBUG1
5187 static void arcmsr_dump_data(struct AdapterControlBlock *acb)
5188 {
5189 	if((acb->pktRequestCount - acb->pktReturnCount) == 0)
5190 		return;
5191 	printf("Command Request Count   =0x%x\n",acb->pktRequestCount);
5192 	printf("Command Return Count    =0x%x\n",acb->pktReturnCount);
5193 	printf("Command (Req-Rtn) Count =0x%x\n",(acb->pktRequestCount - acb->pktReturnCount));
5194 	printf("Queued Command Count    =0x%x\n",acb->srboutstandingcount);
5195 }
5196 #endif
5197