xref: /freebsd/sys/dev/arcmsr/arcmsr.c (revision bd18fd57db1df29da1a3adf94d47924a977a29c2)
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 ** Copyright (C) 2002 - 2012, Areca Technology Corporation All rights reserved.
13 **
14 ** Redistribution and use in source and binary forms, with or without
15 ** modification, are permitted provided that the following conditions
16 ** are met:
17 ** 1. Redistributions of source code must retain the above copyright
18 **    notice, this list of conditions and the following disclaimer.
19 ** 2. Redistributions in binary form must reproduce the above copyright
20 **    notice, this list of conditions and the following disclaimer in the
21 **    documentation and/or other materials provided with the distribution.
22 ** 3. The name of the author may not be used to endorse or promote products
23 **    derived from this software without specific prior written permission.
24 **
25 ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
26 ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
27 ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
28 ** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
29 ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT
30 ** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
31 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY
32 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33 **(INCLUDING NEGLIGENCE OR OTHERWISE)ARISING IN ANY WAY OUT OF THE USE OF
34 ** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 ********************************************************************************
36 ** History
37 **
38 **    REV#         DATE         NAME        DESCRIPTION
39 ** 1.00.00.00   03/31/2004  Erich Chen      First release
40 ** 1.20.00.02   11/29/2004  Erich Chen      bug fix with arcmsr_bus_reset when PHY error
41 ** 1.20.00.03   04/19/2005  Erich Chen      add SATA 24 Ports adapter type support
42 **                                          clean unused function
43 ** 1.20.00.12   09/12/2005  Erich Chen      bug fix with abort command handling,
44 **                                          firmware version check
45 **                                          and firmware update notify for hardware bug fix
46 **                                          handling if none zero high part physical address
47 **                                          of srb resource
48 ** 1.20.00.13   08/18/2006  Erich Chen      remove pending srb and report busy
49 **                                          add iop message xfer
50 **                                          with scsi pass-through command
51 **                                          add new device id of sas raid adapters
52 **                                          code fit for SPARC64 & PPC
53 ** 1.20.00.14   02/05/2007  Erich Chen      bug fix for incorrect ccb_h.status report
54 **                                          and cause g_vfs_done() read write error
55 ** 1.20.00.15   10/10/2007  Erich Chen      support new RAID adapter type ARC120x
56 ** 1.20.00.16   10/10/2009  Erich Chen      Bug fix for RAID adapter type ARC120x
57 **                                          bus_dmamem_alloc() with BUS_DMA_ZERO
58 ** 1.20.00.17   07/15/2010  Ching Huang     Added support ARC1880
59 **                                          report CAM_DEV_NOT_THERE instead of CAM_SEL_TIMEOUT when device failed,
60 **                                          prevent cam_periph_error removing all LUN devices of one Target id
61 **                                          for any one LUN device failed
62 ** 1.20.00.18   10/14/2010  Ching Huang     Fixed "inquiry data fails comparion at DV1 step"
63 **              10/25/2010  Ching Huang     Fixed bad range input in bus_alloc_resource for ADAPTER_TYPE_B
64 ** 1.20.00.19   11/11/2010  Ching Huang     Fixed arcmsr driver prevent arcsas support for Areca SAS HBA ARC13x0
65 ** 1.20.00.20   12/08/2010  Ching Huang     Avoid calling atomic_set_int function
66 ** 1.20.00.21   02/08/2011  Ching Huang     Implement I/O request timeout
67 **              02/14/2011  Ching Huang     Modified pktRequestCount
68 ** 1.20.00.21   03/03/2011  Ching Huang     if a command timeout, then wait its ccb back before free it
69 ** 1.20.00.22   07/04/2011  Ching Huang     Fixed multiple MTX panic
70 ** 1.20.00.23   10/28/2011  Ching Huang     Added TIMEOUT_DELAY in case of too many HDDs need to start
71 ** 1.20.00.23   11/08/2011  Ching Huang     Added report device transfer speed
72 ** 1.20.00.23   01/30/2012  Ching Huang     Fixed Request requeued and Retrying command
73 ** 1.20.00.24   06/11/2012  Ching Huang     Fixed return sense data condition
74 ** 1.20.00.25   08/17/2012  Ching Huang     Fixed hotplug device no function on type A adapter
75 ** 1.20.00.26   12/14/2012  Ching Huang     Added support ARC1214,1224,1264,1284
76 ** 1.20.00.27   05/06/2013  Ching Huang     Fixed out standing cmd full on ARC-12x4
77 ** 1.20.00.28   09/13/2013  Ching Huang     Removed recursive mutex in arcmsr_abort_dr_ccbs
78 ** 1.20.00.29   12/18/2013  Ching Huang     Change simq allocation number, support ARC1883
79 ** 1.30.00.00   11/30/2015  Ching Huang     Added support ARC1203
80 ******************************************************************************************
81 */
82 
83 #include <sys/cdefs.h>
84 __FBSDID("$FreeBSD$");
85 
86 #if 0
87 #define ARCMSR_DEBUG1			1
88 #endif
89 #include <sys/param.h>
90 #include <sys/systm.h>
91 #include <sys/malloc.h>
92 #include <sys/kernel.h>
93 #include <sys/bus.h>
94 #include <sys/queue.h>
95 #include <sys/stat.h>
96 #include <sys/devicestat.h>
97 #include <sys/kthread.h>
98 #include <sys/module.h>
99 #include <sys/proc.h>
100 #include <sys/lock.h>
101 #include <sys/sysctl.h>
102 #include <sys/poll.h>
103 #include <sys/ioccom.h>
104 #include <vm/vm.h>
105 #include <vm/vm_param.h>
106 #include <vm/pmap.h>
107 
108 #include <isa/rtc.h>
109 
110 #include <machine/bus.h>
111 #include <machine/resource.h>
112 #include <machine/atomic.h>
113 #include <sys/conf.h>
114 #include <sys/rman.h>
115 
116 #include <cam/cam.h>
117 #include <cam/cam_ccb.h>
118 #include <cam/cam_sim.h>
119 #include <cam/cam_periph.h>
120 #include <cam/cam_xpt_periph.h>
121 #include <cam/cam_xpt_sim.h>
122 #include <cam/cam_debug.h>
123 #include <cam/scsi/scsi_all.h>
124 #include <cam/scsi/scsi_message.h>
125 /*
126 **************************************************************************
127 **************************************************************************
128 */
129 #if __FreeBSD_version >= 500005
130 	#include <sys/selinfo.h>
131 	#include <sys/mutex.h>
132 	#include <sys/endian.h>
133 	#include <dev/pci/pcivar.h>
134 	#include <dev/pci/pcireg.h>
135 #else
136 	#include <sys/select.h>
137 	#include <pci/pcivar.h>
138 	#include <pci/pcireg.h>
139 #endif
140 
141 #if !defined(CAM_NEW_TRAN_CODE) && __FreeBSD_version >= 700025
142 #define	CAM_NEW_TRAN_CODE	1
143 #endif
144 
145 #if __FreeBSD_version > 500000
146 #define arcmsr_callout_init(a)	callout_init(a, /*mpsafe*/1);
147 #else
148 #define arcmsr_callout_init(a)	callout_init(a);
149 #endif
150 
151 #define ARCMSR_DRIVER_VERSION	"arcmsr version 1.30.00.00 2015-11-30"
152 #include <dev/arcmsr/arcmsr.h>
153 /*
154 **************************************************************************
155 **************************************************************************
156 */
157 static void arcmsr_free_srb(struct CommandControlBlock *srb);
158 static struct CommandControlBlock *arcmsr_get_freesrb(struct AdapterControlBlock *acb);
159 static u_int8_t arcmsr_seek_cmd2abort(union ccb *abortccb);
160 static int arcmsr_probe(device_t dev);
161 static int arcmsr_attach(device_t dev);
162 static int arcmsr_detach(device_t dev);
163 static u_int32_t arcmsr_iop_ioctlcmd(struct AdapterControlBlock *acb, u_int32_t ioctl_cmd, caddr_t arg);
164 static void arcmsr_iop_parking(struct AdapterControlBlock *acb);
165 static int arcmsr_shutdown(device_t dev);
166 static void arcmsr_interrupt(struct AdapterControlBlock *acb);
167 static void arcmsr_polling_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb);
168 static void arcmsr_free_resource(struct AdapterControlBlock *acb);
169 static void arcmsr_bus_reset(struct AdapterControlBlock *acb);
170 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb);
171 static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb);
172 static void arcmsr_iop_init(struct AdapterControlBlock *acb);
173 static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb);
174 static u_int32_t arcmsr_Read_iop_rqbuffer_data(struct AdapterControlBlock *acb, struct QBUFFER *prbuffer);
175 static void arcmsr_Write_data_2iop_wqbuffer(struct AdapterControlBlock *acb);
176 static void arcmsr_abort_allcmd(struct AdapterControlBlock *acb);
177 static void arcmsr_srb_complete(struct CommandControlBlock *srb, int stand_flag);
178 static void arcmsr_iop_reset(struct AdapterControlBlock *acb);
179 static void arcmsr_report_sense_info(struct CommandControlBlock *srb);
180 static void arcmsr_build_srb(struct CommandControlBlock *srb, bus_dma_segment_t *dm_segs, u_int32_t nseg);
181 static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, union ccb *pccb);
182 static int arcmsr_resume(device_t dev);
183 static int arcmsr_suspend(device_t dev);
184 static void arcmsr_rescanLun_cb(struct cam_periph *periph, union ccb *ccb);
185 static void arcmsr_polling_devmap(void *arg);
186 static void arcmsr_srb_timeout(void *arg);
187 static void arcmsr_hbd_postqueue_isr(struct AdapterControlBlock *acb);
188 #ifdef ARCMSR_DEBUG1
189 static void arcmsr_dump_data(struct AdapterControlBlock *acb);
190 #endif
191 /*
192 **************************************************************************
193 **************************************************************************
194 */
195 static void UDELAY(u_int32_t us) { DELAY(us); }
196 /*
197 **************************************************************************
198 **************************************************************************
199 */
200 static bus_dmamap_callback_t arcmsr_map_free_srb;
201 static bus_dmamap_callback_t arcmsr_execute_srb;
202 /*
203 **************************************************************************
204 **************************************************************************
205 */
206 static d_open_t	arcmsr_open;
207 static d_close_t arcmsr_close;
208 static d_ioctl_t arcmsr_ioctl;
209 
210 static device_method_t arcmsr_methods[]={
211 	DEVMETHOD(device_probe,		arcmsr_probe),
212 	DEVMETHOD(device_attach,	arcmsr_attach),
213 	DEVMETHOD(device_detach,	arcmsr_detach),
214 	DEVMETHOD(device_shutdown,	arcmsr_shutdown),
215 	DEVMETHOD(device_suspend,	arcmsr_suspend),
216 	DEVMETHOD(device_resume,	arcmsr_resume),
217 
218 #if __FreeBSD_version >= 803000
219 	DEVMETHOD_END
220 #else
221 	{ 0, 0 }
222 #endif
223 };
224 
225 static driver_t arcmsr_driver={
226 	"arcmsr", arcmsr_methods, sizeof(struct AdapterControlBlock)
227 };
228 
229 static devclass_t arcmsr_devclass;
230 DRIVER_MODULE(arcmsr, pci, arcmsr_driver, arcmsr_devclass, 0, 0);
231 MODULE_DEPEND(arcmsr, pci, 1, 1, 1);
232 MODULE_DEPEND(arcmsr, cam, 1, 1, 1);
233 #ifndef BUS_DMA_COHERENT
234 	#define	BUS_DMA_COHERENT	0x04	/* hint: map memory in a coherent way */
235 #endif
236 #if __FreeBSD_version >= 501000
237 static struct cdevsw arcmsr_cdevsw={
238 	#if __FreeBSD_version >= 503000
239 		.d_version = D_VERSION,
240 	#endif
241 	#if (__FreeBSD_version>=503000 && __FreeBSD_version<600034)
242 		.d_flags   = D_NEEDGIANT,
243 	#endif
244 		.d_open    = arcmsr_open, 	/* open     */
245 		.d_close   = arcmsr_close, 	/* close    */
246 		.d_ioctl   = arcmsr_ioctl, 	/* ioctl    */
247 		.d_name    = "arcmsr", 		/* name     */
248 	};
249 #else
250 	#define ARCMSR_CDEV_MAJOR	180
251 
252 static struct cdevsw arcmsr_cdevsw = {
253 		arcmsr_open,			/* open     */
254 		arcmsr_close,			/* close    */
255 		noread,				/* read     */
256 		nowrite,			/* write    */
257 		arcmsr_ioctl,			/* ioctl    */
258 		nopoll,				/* poll     */
259 		nommap,				/* mmap     */
260 		nostrategy,			/* strategy */
261 		"arcmsr",			/* name     */
262 		ARCMSR_CDEV_MAJOR,		/* major    */
263 		nodump,				/* dump     */
264 		nopsize,			/* psize    */
265 		0				/* flags    */
266 	};
267 #endif
268 /*
269 **************************************************************************
270 **************************************************************************
271 */
272 #if	__FreeBSD_version < 500005
273 	static int arcmsr_open(dev_t dev, int flags, int fmt, struct proc *proc)
274 #else
275 	#if	__FreeBSD_version < 503000
276 	static int arcmsr_open(dev_t dev, int flags, int fmt, struct thread *proc)
277 	#else
278 	static int arcmsr_open(struct cdev *dev, int flags, int fmt, struct thread *proc)
279 	#endif
280 #endif
281 {
282 	#if	__FreeBSD_version < 503000
283 		struct AdapterControlBlock *acb = dev->si_drv1;
284 	#else
285 		int	unit = dev2unit(dev);
286 		struct AdapterControlBlock *acb = devclass_get_softc(arcmsr_devclass, unit);
287 	#endif
288 	if(acb == NULL) {
289 		return ENXIO;
290 	}
291 	return (0);
292 }
293 /*
294 **************************************************************************
295 **************************************************************************
296 */
297 #if	__FreeBSD_version < 500005
298 	static int arcmsr_close(dev_t dev, int flags, int fmt, struct proc *proc)
299 #else
300 	#if	__FreeBSD_version < 503000
301 	static int arcmsr_close(dev_t dev, int flags, int fmt, struct thread *proc)
302 	#else
303 	static int arcmsr_close(struct cdev *dev, int flags, int fmt, struct thread *proc)
304 	#endif
305 #endif
306 {
307 	#if	__FreeBSD_version < 503000
308 		struct AdapterControlBlock *acb = dev->si_drv1;
309 	#else
310 		int	unit = dev2unit(dev);
311 		struct AdapterControlBlock *acb = devclass_get_softc(arcmsr_devclass, unit);
312 	#endif
313 	if(acb == NULL) {
314 		return ENXIO;
315 	}
316 	return 0;
317 }
318 /*
319 **************************************************************************
320 **************************************************************************
321 */
322 #if	__FreeBSD_version < 500005
323 	static int arcmsr_ioctl(dev_t dev, u_long ioctl_cmd, caddr_t arg, int flags, struct proc *proc)
324 #else
325 	#if	__FreeBSD_version < 503000
326 	static int arcmsr_ioctl(dev_t dev, u_long ioctl_cmd, caddr_t arg, int flags, struct thread *proc)
327 	#else
328 	static int arcmsr_ioctl(struct cdev *dev, u_long ioctl_cmd, caddr_t arg, int flags, struct thread *proc)
329 	#endif
330 #endif
331 {
332 	#if	__FreeBSD_version < 503000
333 		struct AdapterControlBlock *acb = dev->si_drv1;
334 	#else
335 		int	unit = dev2unit(dev);
336 		struct AdapterControlBlock *acb = devclass_get_softc(arcmsr_devclass, unit);
337 	#endif
338 
339 	if(acb == NULL) {
340 		return ENXIO;
341 	}
342 	return (arcmsr_iop_ioctlcmd(acb, ioctl_cmd, arg));
343 }
344 /*
345 **********************************************************************
346 **********************************************************************
347 */
348 static u_int32_t arcmsr_disable_allintr( struct AdapterControlBlock *acb)
349 {
350 	u_int32_t intmask_org = 0;
351 
352 	switch (acb->adapter_type) {
353 	case ACB_ADAPTER_TYPE_A: {
354 			/* disable all outbound interrupt */
355 			intmask_org = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intmask); /* disable outbound message0 int */
356 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intmask, intmask_org|ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE);
357 		}
358 		break;
359 	case ACB_ADAPTER_TYPE_B: {
360 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
361 			/* disable all outbound interrupt */
362 			intmask_org = READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell_mask)
363 						& (~ARCMSR_IOP2DRV_MESSAGE_CMD_DONE); /* disable outbound message0 int */
364 			WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell_mask, 0); /* disable all interrupt */
365 		}
366 		break;
367 	case ACB_ADAPTER_TYPE_C: {
368 			/* disable all outbound interrupt */
369 			intmask_org = CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_mask)	; /* disable outbound message0 int */
370 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, host_int_mask, intmask_org|ARCMSR_HBCMU_ALL_INTMASKENABLE);
371 		}
372 		break;
373 	case ACB_ADAPTER_TYPE_D: {
374 			/* disable all outbound interrupt */
375 			intmask_org = CHIP_REG_READ32(HBD_MessageUnit, 0, pcief0_int_enable)	; /* disable outbound message0 int */
376 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, pcief0_int_enable, ARCMSR_HBDMU_ALL_INT_DISABLE);
377 		}
378 		break;
379 	}
380 	return (intmask_org);
381 }
382 /*
383 **********************************************************************
384 **********************************************************************
385 */
386 static void arcmsr_enable_allintr( struct AdapterControlBlock *acb, u_int32_t intmask_org)
387 {
388 	u_int32_t mask;
389 
390 	switch (acb->adapter_type) {
391 	case ACB_ADAPTER_TYPE_A: {
392 			/* enable outbound Post Queue, outbound doorbell Interrupt */
393 			mask = ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE|ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE|ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE);
394 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intmask, intmask_org & mask);
395 			acb->outbound_int_enable = ~(intmask_org & mask) & 0x000000ff;
396 		}
397 		break;
398 	case ACB_ADAPTER_TYPE_B: {
399 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
400 			/* enable ARCMSR_IOP2DRV_MESSAGE_CMD_DONE */
401 			mask = (ARCMSR_IOP2DRV_DATA_WRITE_OK|ARCMSR_IOP2DRV_DATA_READ_OK|ARCMSR_IOP2DRV_CDB_DONE|ARCMSR_IOP2DRV_MESSAGE_CMD_DONE);
402 			WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell_mask, intmask_org | mask); /*1=interrupt enable, 0=interrupt disable*/
403 			acb->outbound_int_enable = (intmask_org | mask) & 0x0000000f;
404 		}
405 		break;
406 	case ACB_ADAPTER_TYPE_C: {
407 			/* enable outbound Post Queue, outbound doorbell Interrupt */
408 			mask = ~(ARCMSR_HBCMU_UTILITY_A_ISR_MASK | ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR_MASK | ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR_MASK);
409 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, host_int_mask, intmask_org & mask);
410 			acb->outbound_int_enable = ~(intmask_org & mask) & 0x0000000f;
411 		}
412 		break;
413 	case ACB_ADAPTER_TYPE_D: {
414 			/* enable outbound Post Queue, outbound doorbell Interrupt */
415 			mask = ARCMSR_HBDMU_ALL_INT_ENABLE;
416 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, pcief0_int_enable, intmask_org | mask);
417 			CHIP_REG_READ32(HBD_MessageUnit, 0, pcief0_int_enable);
418 			acb->outbound_int_enable = mask;
419 		}
420 		break;
421 	}
422 }
423 /*
424 **********************************************************************
425 **********************************************************************
426 */
427 static u_int8_t arcmsr_hba_wait_msgint_ready(struct AdapterControlBlock *acb)
428 {
429 	u_int32_t Index;
430 	u_int8_t Retries = 0x00;
431 
432 	do {
433 		for(Index=0; Index < 100; Index++) {
434 			if(CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intstatus) & ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
435 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, ARCMSR_MU_OUTBOUND_MESSAGE0_INT);/*clear interrupt*/
436 				return TRUE;
437 			}
438 			UDELAY(10000);
439 		}/*max 1 seconds*/
440 	}while(Retries++ < 20);/*max 20 sec*/
441 	return (FALSE);
442 }
443 /*
444 **********************************************************************
445 **********************************************************************
446 */
447 static u_int8_t arcmsr_hbb_wait_msgint_ready(struct AdapterControlBlock *acb)
448 {
449 	u_int32_t Index;
450 	u_int8_t Retries = 0x00;
451 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
452 
453 	do {
454 		for(Index=0; Index < 100; Index++) {
455 			if(READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell) & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
456 				WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_MESSAGE_INT_CLEAR_PATTERN);/*clear interrupt*/
457 				WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_END_OF_INTERRUPT);
458 				return TRUE;
459 			}
460 			UDELAY(10000);
461 		}/*max 1 seconds*/
462 	}while(Retries++ < 20);/*max 20 sec*/
463 	return (FALSE);
464 }
465 /*
466 **********************************************************************
467 **********************************************************************
468 */
469 static u_int8_t arcmsr_hbc_wait_msgint_ready(struct AdapterControlBlock *acb)
470 {
471 	u_int32_t Index;
472 	u_int8_t Retries = 0x00;
473 
474 	do {
475 		for(Index=0; Index < 100; Index++) {
476 			if(CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
477 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, outbound_doorbell_clear, ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR);/*clear interrupt*/
478 				return TRUE;
479 			}
480 			UDELAY(10000);
481 		}/*max 1 seconds*/
482 	}while(Retries++ < 20);/*max 20 sec*/
483 	return (FALSE);
484 }
485 /*
486 **********************************************************************
487 **********************************************************************
488 */
489 static u_int8_t arcmsr_hbd_wait_msgint_ready(struct AdapterControlBlock *acb)
490 {
491 	u_int32_t Index;
492 	u_int8_t Retries = 0x00;
493 
494 	do {
495 		for(Index=0; Index < 100; Index++) {
496 			if(CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE) {
497 				CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE_CLEAR);/*clear interrupt*/
498 				return TRUE;
499 			}
500 			UDELAY(10000);
501 		}/*max 1 seconds*/
502 	}while(Retries++ < 20);/*max 20 sec*/
503 	return (FALSE);
504 }
505 /*
506 ************************************************************************
507 ************************************************************************
508 */
509 static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb)
510 {
511 	int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
512 
513 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_FLUSH_CACHE);
514 	do {
515 		if(arcmsr_hba_wait_msgint_ready(acb)) {
516 			break;
517 		} else {
518 			retry_count--;
519 		}
520 	}while(retry_count != 0);
521 }
522 /*
523 ************************************************************************
524 ************************************************************************
525 */
526 static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb)
527 {
528 	int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
529 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
530 
531 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_FLUSH_CACHE);
532 	do {
533 		if(arcmsr_hbb_wait_msgint_ready(acb)) {
534 			break;
535 		} else {
536 			retry_count--;
537 		}
538 	}while(retry_count != 0);
539 }
540 /*
541 ************************************************************************
542 ************************************************************************
543 */
544 static void arcmsr_flush_hbc_cache(struct AdapterControlBlock *acb)
545 {
546 	int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
547 
548 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_FLUSH_CACHE);
549 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
550 	do {
551 		if(arcmsr_hbc_wait_msgint_ready(acb)) {
552 			break;
553 		} else {
554 			retry_count--;
555 		}
556 	}while(retry_count != 0);
557 }
558 /*
559 ************************************************************************
560 ************************************************************************
561 */
562 static void arcmsr_flush_hbd_cache(struct AdapterControlBlock *acb)
563 {
564 	int retry_count = 30; /* enlarge wait flush adapter cache time: 10 minute */
565 
566 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_FLUSH_CACHE);
567 	do {
568 		if(arcmsr_hbd_wait_msgint_ready(acb)) {
569 			break;
570 		} else {
571 			retry_count--;
572 		}
573 	}while(retry_count != 0);
574 }
575 /*
576 ************************************************************************
577 ************************************************************************
578 */
579 static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb)
580 {
581 	switch (acb->adapter_type) {
582 	case ACB_ADAPTER_TYPE_A: {
583 			arcmsr_flush_hba_cache(acb);
584 		}
585 		break;
586 	case ACB_ADAPTER_TYPE_B: {
587 			arcmsr_flush_hbb_cache(acb);
588 		}
589 		break;
590 	case ACB_ADAPTER_TYPE_C: {
591 			arcmsr_flush_hbc_cache(acb);
592 		}
593 		break;
594 	case ACB_ADAPTER_TYPE_D: {
595 			arcmsr_flush_hbd_cache(acb);
596 		}
597 		break;
598 	}
599 }
600 /*
601 *******************************************************************************
602 *******************************************************************************
603 */
604 static int arcmsr_suspend(device_t dev)
605 {
606 	struct AdapterControlBlock	*acb = device_get_softc(dev);
607 
608 	/* flush controller */
609 	arcmsr_iop_parking(acb);
610 	/* disable all outbound interrupt */
611 	arcmsr_disable_allintr(acb);
612 	return(0);
613 }
614 /*
615 *******************************************************************************
616 *******************************************************************************
617 */
618 static int arcmsr_resume(device_t dev)
619 {
620 	struct AdapterControlBlock	*acb = device_get_softc(dev);
621 
622 	arcmsr_iop_init(acb);
623 	return(0);
624 }
625 /*
626 *********************************************************************************
627 *********************************************************************************
628 */
629 static void arcmsr_async(void *cb_arg, u_int32_t code, struct cam_path *path, void *arg)
630 {
631 	struct AdapterControlBlock *acb;
632 	u_int8_t target_id, target_lun;
633 	struct cam_sim *sim;
634 
635 	sim = (struct cam_sim *) cb_arg;
636 	acb =(struct AdapterControlBlock *) cam_sim_softc(sim);
637 	switch (code) {
638 	case AC_LOST_DEVICE:
639 		target_id = xpt_path_target_id(path);
640 		target_lun = xpt_path_lun_id(path);
641 		if((target_id > ARCMSR_MAX_TARGETID) || (target_lun > ARCMSR_MAX_TARGETLUN)) {
642 			break;
643 		}
644 	//	printf("%s:scsi id=%d lun=%d device lost \n", device_get_name(acb->pci_dev), target_id, target_lun);
645 		break;
646 	default:
647 		break;
648 	}
649 }
650 /*
651 **********************************************************************
652 **********************************************************************
653 */
654 static void arcmsr_report_sense_info(struct CommandControlBlock *srb)
655 {
656 	union ccb *pccb = srb->pccb;
657 
658 	pccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
659 	pccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
660 	if(pccb->csio.sense_len) {
661 		memset(&pccb->csio.sense_data, 0, sizeof(pccb->csio.sense_data));
662 		memcpy(&pccb->csio.sense_data, srb->arcmsr_cdb.SenseData,
663 		get_min(sizeof(struct SENSE_DATA), sizeof(pccb->csio.sense_data)));
664 		((u_int8_t *)&pccb->csio.sense_data)[0] = (0x1 << 7 | 0x70); /* Valid,ErrorCode */
665 		pccb->ccb_h.status |= CAM_AUTOSNS_VALID;
666 	}
667 }
668 /*
669 *********************************************************************
670 *********************************************************************
671 */
672 static void arcmsr_abort_hba_allcmd(struct AdapterControlBlock *acb)
673 {
674 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_ABORT_CMD);
675 	if(!arcmsr_hba_wait_msgint_ready(acb)) {
676 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
677 	}
678 }
679 /*
680 *********************************************************************
681 *********************************************************************
682 */
683 static void arcmsr_abort_hbb_allcmd(struct AdapterControlBlock *acb)
684 {
685 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
686 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_ABORT_CMD);
687 	if(!arcmsr_hbb_wait_msgint_ready(acb)) {
688 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
689 	}
690 }
691 /*
692 *********************************************************************
693 *********************************************************************
694 */
695 static void arcmsr_abort_hbc_allcmd(struct AdapterControlBlock *acb)
696 {
697 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_ABORT_CMD);
698 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
699 	if(!arcmsr_hbc_wait_msgint_ready(acb)) {
700 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
701 	}
702 }
703 /*
704 *********************************************************************
705 *********************************************************************
706 */
707 static void arcmsr_abort_hbd_allcmd(struct AdapterControlBlock *acb)
708 {
709 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_ABORT_CMD);
710 	if(!arcmsr_hbd_wait_msgint_ready(acb)) {
711 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
712 	}
713 }
714 /*
715 *********************************************************************
716 *********************************************************************
717 */
718 static void arcmsr_abort_allcmd(struct AdapterControlBlock *acb)
719 {
720 	switch (acb->adapter_type) {
721 	case ACB_ADAPTER_TYPE_A: {
722 			arcmsr_abort_hba_allcmd(acb);
723 		}
724 		break;
725 	case ACB_ADAPTER_TYPE_B: {
726 			arcmsr_abort_hbb_allcmd(acb);
727 		}
728 		break;
729 	case ACB_ADAPTER_TYPE_C: {
730 			arcmsr_abort_hbc_allcmd(acb);
731 		}
732 		break;
733 	case ACB_ADAPTER_TYPE_D: {
734 			arcmsr_abort_hbd_allcmd(acb);
735 		}
736 		break;
737 	}
738 }
739 /*
740 **********************************************************************
741 **********************************************************************
742 */
743 static void arcmsr_srb_complete(struct CommandControlBlock *srb, int stand_flag)
744 {
745 	struct AdapterControlBlock *acb = srb->acb;
746 	union ccb *pccb = srb->pccb;
747 
748 	if(srb->srb_flags & SRB_FLAG_TIMER_START)
749 		callout_stop(&srb->ccb_callout);
750 	if((pccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
751 		bus_dmasync_op_t op;
752 
753 		if((pccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
754 			op = BUS_DMASYNC_POSTREAD;
755 		} else {
756 			op = BUS_DMASYNC_POSTWRITE;
757 		}
758 		bus_dmamap_sync(acb->dm_segs_dmat, srb->dm_segs_dmamap, op);
759 		bus_dmamap_unload(acb->dm_segs_dmat, srb->dm_segs_dmamap);
760 	}
761 	if(stand_flag == 1) {
762 		atomic_subtract_int(&acb->srboutstandingcount, 1);
763 		if((acb->acb_flags & ACB_F_CAM_DEV_QFRZN) && (
764 		acb->srboutstandingcount < (acb->maxOutstanding -10))) {
765 			acb->acb_flags &= ~ACB_F_CAM_DEV_QFRZN;
766 			pccb->ccb_h.status |= CAM_RELEASE_SIMQ;
767 		}
768 	}
769 	if(srb->srb_state != ARCMSR_SRB_TIMEOUT)
770 		arcmsr_free_srb(srb);
771 	acb->pktReturnCount++;
772 	xpt_done(pccb);
773 }
774 /*
775 **************************************************************************
776 **************************************************************************
777 */
778 static void arcmsr_report_srb_state(struct AdapterControlBlock *acb, struct CommandControlBlock *srb, u_int16_t error)
779 {
780 	int target, lun;
781 
782 	target = srb->pccb->ccb_h.target_id;
783 	lun = srb->pccb->ccb_h.target_lun;
784 	if(error == FALSE) {
785 		if(acb->devstate[target][lun] == ARECA_RAID_GONE) {
786 			acb->devstate[target][lun] = ARECA_RAID_GOOD;
787 		}
788 		srb->pccb->ccb_h.status |= CAM_REQ_CMP;
789 		arcmsr_srb_complete(srb, 1);
790 	} else {
791 		switch(srb->arcmsr_cdb.DeviceStatus) {
792 		case ARCMSR_DEV_SELECT_TIMEOUT: {
793 				if(acb->devstate[target][lun] == ARECA_RAID_GOOD) {
794 					printf( "arcmsr%d: Target=%x, Lun=%x, selection timeout, raid volume was lost\n", acb->pci_unit, target, lun);
795 				}
796 				acb->devstate[target][lun] = ARECA_RAID_GONE;
797 				srb->pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
798 				arcmsr_srb_complete(srb, 1);
799 			}
800 			break;
801 		case ARCMSR_DEV_ABORTED:
802 		case ARCMSR_DEV_INIT_FAIL: {
803 				acb->devstate[target][lun] = ARECA_RAID_GONE;
804 				srb->pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
805 				arcmsr_srb_complete(srb, 1);
806 			}
807 			break;
808 		case SCSISTAT_CHECK_CONDITION: {
809 				acb->devstate[target][lun] = ARECA_RAID_GOOD;
810 				arcmsr_report_sense_info(srb);
811 				arcmsr_srb_complete(srb, 1);
812 			}
813 			break;
814 		default:
815 			printf("arcmsr%d: scsi id=%d lun=%d isr got command error done,but got unknown DeviceStatus=0x%x \n"
816 					, acb->pci_unit, target, lun ,srb->arcmsr_cdb.DeviceStatus);
817 			acb->devstate[target][lun] = ARECA_RAID_GONE;
818 			srb->pccb->ccb_h.status |= CAM_UNCOR_PARITY;
819 			/*unknown error or crc error just for retry*/
820 			arcmsr_srb_complete(srb, 1);
821 			break;
822 		}
823 	}
824 }
825 /*
826 **************************************************************************
827 **************************************************************************
828 */
829 static void arcmsr_drain_donequeue(struct AdapterControlBlock *acb, u_int32_t flag_srb, u_int16_t error)
830 {
831 	struct CommandControlBlock *srb;
832 
833 	/* check if command done with no error*/
834 	switch (acb->adapter_type) {
835 	case ACB_ADAPTER_TYPE_C:
836 	case ACB_ADAPTER_TYPE_D:
837 		srb = (struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb & 0xFFFFFFE0)); /*frame must be 32 bytes aligned*/
838 		break;
839 	case ACB_ADAPTER_TYPE_A:
840 	case ACB_ADAPTER_TYPE_B:
841 	default:
842 		srb = (struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb << 5));/*frame must be 32 bytes aligned*/
843 		break;
844 	}
845 	if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
846 		if(srb->srb_state == ARCMSR_SRB_TIMEOUT) {
847 			arcmsr_free_srb(srb);
848 			printf("arcmsr%d: srb='%p' return srb has been timeouted\n", acb->pci_unit, srb);
849 			return;
850 		}
851 		printf("arcmsr%d: return srb has been completed\n"
852 			"srb='%p' srb_state=0x%x outstanding srb count=%d \n",
853 			acb->pci_unit, srb, srb->srb_state, acb->srboutstandingcount);
854 		return;
855 	}
856 	arcmsr_report_srb_state(acb, srb, error);
857 }
858 /*
859 **************************************************************************
860 **************************************************************************
861 */
862 static void	arcmsr_srb_timeout(void *arg)
863 {
864 	struct CommandControlBlock *srb = (struct CommandControlBlock *)arg;
865 	struct AdapterControlBlock *acb;
866 	int target, lun;
867 	u_int8_t cmd;
868 
869 	target = srb->pccb->ccb_h.target_id;
870 	lun = srb->pccb->ccb_h.target_lun;
871 	acb = srb->acb;
872 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
873 	if(srb->srb_state == ARCMSR_SRB_START)
874 	{
875 		cmd = srb->pccb->csio.cdb_io.cdb_bytes[0];
876 		srb->srb_state = ARCMSR_SRB_TIMEOUT;
877 		srb->pccb->ccb_h.status |= CAM_CMD_TIMEOUT;
878 		arcmsr_srb_complete(srb, 1);
879 		printf("arcmsr%d: scsi id %d lun %d cmd=0x%x srb='%p' ccb command time out!\n",
880 				 acb->pci_unit, target, lun, cmd, srb);
881 	}
882 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
883 #ifdef ARCMSR_DEBUG1
884 	arcmsr_dump_data(acb);
885 #endif
886 }
887 
888 /*
889 **********************************************************************
890 **********************************************************************
891 */
892 static void arcmsr_done4abort_postqueue(struct AdapterControlBlock *acb)
893 {
894 	int i=0;
895 	u_int32_t flag_srb;
896 	u_int16_t error;
897 
898 	switch (acb->adapter_type) {
899 	case ACB_ADAPTER_TYPE_A: {
900 			u_int32_t outbound_intstatus;
901 
902 			/*clear and abort all outbound posted Q*/
903 			outbound_intstatus = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intstatus) & acb->outbound_int_enable;
904 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, outbound_intstatus);/*clear interrupt*/
905 			while(((flag_srb=CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_queueport)) != 0xFFFFFFFF) && (i++ < ARCMSR_MAX_OUTSTANDING_CMD)) {
906 				error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0)?TRUE:FALSE;
907 				arcmsr_drain_donequeue(acb, flag_srb, error);
908 			}
909 		}
910 		break;
911 	case ACB_ADAPTER_TYPE_B: {
912 			struct HBB_MessageUnit *phbbmu=(struct HBB_MessageUnit *)acb->pmu;
913 
914 			/*clear all outbound posted Q*/
915 			WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_DOORBELL_INT_CLEAR_PATTERN); /* clear doorbell interrupt */
916 			for(i=0; i < ARCMSR_MAX_HBB_POSTQUEUE; i++) {
917 				if((flag_srb = phbbmu->done_qbuffer[i]) != 0) {
918 					phbbmu->done_qbuffer[i] = 0;
919 					error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0)?TRUE:FALSE;
920 					arcmsr_drain_donequeue(acb, flag_srb, error);
921 				}
922 				phbbmu->post_qbuffer[i] = 0;
923 			}/*drain reply FIFO*/
924 			phbbmu->doneq_index = 0;
925 			phbbmu->postq_index = 0;
926 		}
927 		break;
928 	case ACB_ADAPTER_TYPE_C: {
929 
930 			while((CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) && (i++ < ARCMSR_MAX_OUTSTANDING_CMD)) {
931 				flag_srb = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_queueport_low);
932 				error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1) ? TRUE : FALSE;
933 				arcmsr_drain_donequeue(acb, flag_srb, error);
934 			}
935 		}
936 		break;
937 	case ACB_ADAPTER_TYPE_D: {
938 			arcmsr_hbd_postqueue_isr(acb);
939 		}
940 		break;
941 	}
942 }
943 /*
944 ****************************************************************************
945 ****************************************************************************
946 */
947 static void arcmsr_iop_reset(struct AdapterControlBlock *acb)
948 {
949 	struct CommandControlBlock *srb;
950 	u_int32_t intmask_org;
951 	u_int32_t i=0;
952 
953 	if(acb->srboutstandingcount>0) {
954 		/* disable all outbound interrupt */
955 		intmask_org = arcmsr_disable_allintr(acb);
956 		/*clear and abort all outbound posted Q*/
957 		arcmsr_done4abort_postqueue(acb);
958 		/* talk to iop 331 outstanding command aborted*/
959 		arcmsr_abort_allcmd(acb);
960 		for(i=0; i < ARCMSR_MAX_FREESRB_NUM; i++) {
961 			srb = acb->psrb_pool[i];
962 			if(srb->srb_state == ARCMSR_SRB_START) {
963 				srb->srb_state = ARCMSR_SRB_ABORTED;
964 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
965 				arcmsr_srb_complete(srb, 1);
966 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p' aborted\n"
967 						, acb->pci_unit, srb->pccb->ccb_h.target_id
968 						, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
969 			}
970 		}
971 		/* enable all outbound interrupt */
972 		arcmsr_enable_allintr(acb, intmask_org);
973 	}
974 	acb->srboutstandingcount = 0;
975 	acb->workingsrb_doneindex = 0;
976 	acb->workingsrb_startindex = 0;
977 	acb->pktRequestCount = 0;
978 	acb->pktReturnCount = 0;
979 }
980 /*
981 **********************************************************************
982 **********************************************************************
983 */
984 static void arcmsr_build_srb(struct CommandControlBlock *srb,
985 		bus_dma_segment_t *dm_segs, u_int32_t nseg)
986 {
987 	struct ARCMSR_CDB *arcmsr_cdb = &srb->arcmsr_cdb;
988 	u_int8_t *psge = (u_int8_t *)&arcmsr_cdb->u;
989 	u_int32_t address_lo, address_hi;
990 	union ccb *pccb = srb->pccb;
991 	struct ccb_scsiio *pcsio = &pccb->csio;
992 	u_int32_t arccdbsize = 0x30;
993 
994 	memset(arcmsr_cdb, 0, sizeof(struct ARCMSR_CDB));
995 	arcmsr_cdb->Bus = 0;
996 	arcmsr_cdb->TargetID = pccb->ccb_h.target_id;
997 	arcmsr_cdb->LUN = pccb->ccb_h.target_lun;
998 	arcmsr_cdb->Function = 1;
999 	arcmsr_cdb->CdbLength = (u_int8_t)pcsio->cdb_len;
1000 	bcopy(pcsio->cdb_io.cdb_bytes, arcmsr_cdb->Cdb, pcsio->cdb_len);
1001 	if(nseg != 0) {
1002 		struct AdapterControlBlock *acb = srb->acb;
1003 		bus_dmasync_op_t op;
1004 		u_int32_t length, i, cdb_sgcount = 0;
1005 
1006 		if((pccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1007 			op = BUS_DMASYNC_PREREAD;
1008 		} else {
1009 			op = BUS_DMASYNC_PREWRITE;
1010 			arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_WRITE;
1011 			srb->srb_flags |= SRB_FLAG_WRITE;
1012 		}
1013 		bus_dmamap_sync(acb->dm_segs_dmat, srb->dm_segs_dmamap, op);
1014 		for(i=0; i < nseg; i++) {
1015 			/* Get the physical address of the current data pointer */
1016 			length = arcmsr_htole32(dm_segs[i].ds_len);
1017 			address_lo = arcmsr_htole32(dma_addr_lo32(dm_segs[i].ds_addr));
1018 			address_hi = arcmsr_htole32(dma_addr_hi32(dm_segs[i].ds_addr));
1019 			if(address_hi == 0) {
1020 				struct SG32ENTRY *pdma_sg = (struct SG32ENTRY *)psge;
1021 				pdma_sg->address = address_lo;
1022 				pdma_sg->length = length;
1023 				psge += sizeof(struct SG32ENTRY);
1024 				arccdbsize += sizeof(struct SG32ENTRY);
1025 			} else {
1026 				u_int32_t sg64s_size = 0, tmplength = length;
1027 
1028 				while(1) {
1029 					u_int64_t span4G, length0;
1030 					struct SG64ENTRY *pdma_sg = (struct SG64ENTRY *)psge;
1031 
1032 					span4G = (u_int64_t)address_lo + tmplength;
1033 					pdma_sg->addresshigh = address_hi;
1034 					pdma_sg->address = address_lo;
1035 					if(span4G > 0x100000000) {
1036 						/*see if cross 4G boundary*/
1037 						length0 = 0x100000000-address_lo;
1038 						pdma_sg->length = (u_int32_t)length0 | IS_SG64_ADDR;
1039 						address_hi = address_hi+1;
1040 						address_lo = 0;
1041 						tmplength = tmplength - (u_int32_t)length0;
1042 						sg64s_size += sizeof(struct SG64ENTRY);
1043 						psge += sizeof(struct SG64ENTRY);
1044 						cdb_sgcount++;
1045 					} else {
1046 						pdma_sg->length = tmplength | IS_SG64_ADDR;
1047 						sg64s_size += sizeof(struct SG64ENTRY);
1048 						psge += sizeof(struct SG64ENTRY);
1049 						break;
1050 					}
1051 				}
1052 				arccdbsize += sg64s_size;
1053 			}
1054 			cdb_sgcount++;
1055 		}
1056 		arcmsr_cdb->sgcount = (u_int8_t)cdb_sgcount;
1057 		arcmsr_cdb->DataLength = pcsio->dxfer_len;
1058 		if( arccdbsize > 256) {
1059 			arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_SGL_BSIZE;
1060 		}
1061 	} else {
1062 		arcmsr_cdb->DataLength = 0;
1063 	}
1064 	srb->arc_cdb_size = arccdbsize;
1065 	arcmsr_cdb->msgPages = (arccdbsize/256) + ((arccdbsize % 256) ? 1 : 0);
1066 }
1067 /*
1068 **************************************************************************
1069 **************************************************************************
1070 */
1071 static void arcmsr_post_srb(struct AdapterControlBlock *acb, struct CommandControlBlock *srb)
1072 {
1073 	u_int32_t cdb_phyaddr_low = (u_int32_t) srb->cdb_phyaddr_low;
1074 	struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&srb->arcmsr_cdb;
1075 
1076 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, (srb->srb_flags & SRB_FLAG_WRITE) ? BUS_DMASYNC_POSTWRITE:BUS_DMASYNC_POSTREAD);
1077 	atomic_add_int(&acb->srboutstandingcount, 1);
1078 	srb->srb_state = ARCMSR_SRB_START;
1079 
1080 	switch (acb->adapter_type) {
1081 	case ACB_ADAPTER_TYPE_A: {
1082 			if(arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) {
1083 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_queueport, cdb_phyaddr_low|ARCMSR_SRBPOST_FLAG_SGL_BSIZE);
1084 			} else {
1085 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_queueport, cdb_phyaddr_low);
1086 			}
1087 		}
1088 		break;
1089 	case ACB_ADAPTER_TYPE_B: {
1090 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1091 			int ending_index, index;
1092 
1093 			index = phbbmu->postq_index;
1094 			ending_index = ((index+1) % ARCMSR_MAX_HBB_POSTQUEUE);
1095 			phbbmu->post_qbuffer[ending_index] = 0;
1096 			if(arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) {
1097 				phbbmu->post_qbuffer[index] = cdb_phyaddr_low | ARCMSR_SRBPOST_FLAG_SGL_BSIZE;
1098 			} else {
1099 				phbbmu->post_qbuffer[index] = cdb_phyaddr_low;
1100 			}
1101 			index++;
1102 			index %= ARCMSR_MAX_HBB_POSTQUEUE;     /*if last index number set it to 0 */
1103 			phbbmu->postq_index = index;
1104 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_CDB_POSTED);
1105 		}
1106 		break;
1107 	case ACB_ADAPTER_TYPE_C: {
1108 			u_int32_t ccb_post_stamp, arc_cdb_size, cdb_phyaddr_hi32;
1109 
1110 			arc_cdb_size = (srb->arc_cdb_size > 0x300) ? 0x300 : srb->arc_cdb_size;
1111 			ccb_post_stamp = (cdb_phyaddr_low | ((arc_cdb_size-1) >> 6) | 1);
1112 			cdb_phyaddr_hi32 = acb->srb_phyaddr.B.phyadd_high;
1113 			if(cdb_phyaddr_hi32)
1114 			{
1115 				CHIP_REG_WRITE32(HBC_MessageUnit,0,inbound_queueport_high, cdb_phyaddr_hi32);
1116 				CHIP_REG_WRITE32(HBC_MessageUnit,0,inbound_queueport_low, ccb_post_stamp);
1117 			}
1118 			else
1119 			{
1120 				CHIP_REG_WRITE32(HBC_MessageUnit,0,inbound_queueport_low, ccb_post_stamp);
1121 			}
1122 		}
1123 		break;
1124 	case ACB_ADAPTER_TYPE_D: {
1125 			struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
1126 			u_int16_t index_stripped;
1127 			u_int16_t postq_index;
1128 			struct InBound_SRB *pinbound_srb;
1129 
1130 			ARCMSR_LOCK_ACQUIRE(&acb->postDone_lock);
1131 			postq_index = phbdmu->postq_index;
1132 			pinbound_srb = (struct InBound_SRB *)&phbdmu->post_qbuffer[postq_index & 0xFF];
1133 			pinbound_srb->addressHigh = srb->cdb_phyaddr_high;
1134 			pinbound_srb->addressLow = srb->cdb_phyaddr_low;
1135 			pinbound_srb->length = srb->arc_cdb_size >> 2;
1136 			arcmsr_cdb->Context = srb->cdb_phyaddr_low;
1137 			if (postq_index & 0x4000) {
1138 				index_stripped = postq_index & 0xFF;
1139 				index_stripped += 1;
1140 				index_stripped %= ARCMSR_MAX_HBD_POSTQUEUE;
1141 				phbdmu->postq_index = index_stripped ? (index_stripped | 0x4000) : index_stripped;
1142 			} else {
1143 				index_stripped = postq_index;
1144 				index_stripped += 1;
1145 				index_stripped %= ARCMSR_MAX_HBD_POSTQUEUE;
1146 				phbdmu->postq_index = index_stripped ? index_stripped : (index_stripped | 0x4000);
1147 			}
1148 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inboundlist_write_pointer, postq_index);
1149 			ARCMSR_LOCK_RELEASE(&acb->postDone_lock);
1150 		}
1151 		break;
1152 	}
1153 }
1154 /*
1155 ************************************************************************
1156 ************************************************************************
1157 */
1158 static struct QBUFFER *arcmsr_get_iop_rqbuffer( struct AdapterControlBlock *acb)
1159 {
1160 	struct QBUFFER *qbuffer=NULL;
1161 
1162 	switch (acb->adapter_type) {
1163 	case ACB_ADAPTER_TYPE_A: {
1164 			struct HBA_MessageUnit *phbamu = (struct HBA_MessageUnit *)acb->pmu;
1165 
1166 			qbuffer = (struct QBUFFER *)&phbamu->message_rbuffer;
1167 		}
1168 		break;
1169 	case ACB_ADAPTER_TYPE_B: {
1170 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1171 
1172 			qbuffer = (struct QBUFFER *)&phbbmu->hbb_rwbuffer->message_rbuffer;
1173 		}
1174 		break;
1175 	case ACB_ADAPTER_TYPE_C: {
1176 			struct HBC_MessageUnit *phbcmu = (struct HBC_MessageUnit *)acb->pmu;
1177 
1178 			qbuffer = (struct QBUFFER *)&phbcmu->message_rbuffer;
1179 		}
1180 		break;
1181 	case ACB_ADAPTER_TYPE_D: {
1182 			struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
1183 
1184 			qbuffer = (struct QBUFFER *)&phbdmu->phbdmu->message_rbuffer;
1185 		}
1186 		break;
1187 	}
1188 	return(qbuffer);
1189 }
1190 /*
1191 ************************************************************************
1192 ************************************************************************
1193 */
1194 static struct QBUFFER *arcmsr_get_iop_wqbuffer( struct AdapterControlBlock *acb)
1195 {
1196 	struct QBUFFER *qbuffer = NULL;
1197 
1198 	switch (acb->adapter_type) {
1199 	case ACB_ADAPTER_TYPE_A: {
1200 			struct HBA_MessageUnit *phbamu = (struct HBA_MessageUnit *)acb->pmu;
1201 
1202 			qbuffer = (struct QBUFFER *)&phbamu->message_wbuffer;
1203 		}
1204 		break;
1205 	case ACB_ADAPTER_TYPE_B: {
1206 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1207 
1208 			qbuffer = (struct QBUFFER *)&phbbmu->hbb_rwbuffer->message_wbuffer;
1209 		}
1210 		break;
1211 	case ACB_ADAPTER_TYPE_C: {
1212 			struct HBC_MessageUnit *phbcmu = (struct HBC_MessageUnit *)acb->pmu;
1213 
1214 			qbuffer = (struct QBUFFER *)&phbcmu->message_wbuffer;
1215 		}
1216 		break;
1217 	case ACB_ADAPTER_TYPE_D: {
1218 			struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
1219 
1220 			qbuffer = (struct QBUFFER *)&phbdmu->phbdmu->message_wbuffer;
1221 		}
1222 		break;
1223 	}
1224 	return(qbuffer);
1225 }
1226 /*
1227 **************************************************************************
1228 **************************************************************************
1229 */
1230 static void arcmsr_iop_message_read(struct AdapterControlBlock *acb)
1231 {
1232 	switch (acb->adapter_type) {
1233 	case ACB_ADAPTER_TYPE_A: {
1234 			/* let IOP know data has been read */
1235 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_READ_OK);
1236 		}
1237 		break;
1238 	case ACB_ADAPTER_TYPE_B: {
1239 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1240 			/* let IOP know data has been read */
1241 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_DATA_READ_OK);
1242 		}
1243 		break;
1244 	case ACB_ADAPTER_TYPE_C: {
1245 			/* let IOP know data has been read */
1246 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK);
1247 		}
1248 		break;
1249 	case ACB_ADAPTER_TYPE_D: {
1250 			/* let IOP know data has been read */
1251 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_doorbell, ARCMSR_HBDMU_DRV2IOP_DATA_OUT_READ);
1252 		}
1253 		break;
1254 	}
1255 }
1256 /*
1257 **************************************************************************
1258 **************************************************************************
1259 */
1260 static void arcmsr_iop_message_wrote(struct AdapterControlBlock *acb)
1261 {
1262 	switch (acb->adapter_type) {
1263 	case ACB_ADAPTER_TYPE_A: {
1264 			/*
1265 			** push inbound doorbell tell iop, driver data write ok
1266 			** and wait reply on next hwinterrupt for next Qbuffer post
1267 			*/
1268 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK);
1269 		}
1270 		break;
1271 	case ACB_ADAPTER_TYPE_B: {
1272 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1273 			/*
1274 			** push inbound doorbell tell iop, driver data write ok
1275 			** and wait reply on next hwinterrupt for next Qbuffer post
1276 			*/
1277 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_DATA_WRITE_OK);
1278 		}
1279 		break;
1280 	case ACB_ADAPTER_TYPE_C: {
1281 			/*
1282 			** push inbound doorbell tell iop, driver data write ok
1283 			** and wait reply on next hwinterrupt for next Qbuffer post
1284 			*/
1285 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_DATA_WRITE_OK);
1286 		}
1287 		break;
1288 	case ACB_ADAPTER_TYPE_D: {
1289 			/*
1290 			** push inbound doorbell tell iop, driver data write ok
1291 			** and wait reply on next hwinterrupt for next Qbuffer post
1292 			*/
1293 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_doorbell, ARCMSR_HBDMU_DRV2IOP_DATA_IN_READY);
1294 		}
1295 		break;
1296 	}
1297 }
1298 /*
1299 ************************************************************************
1300 ************************************************************************
1301 */
1302 static void arcmsr_stop_hba_bgrb(struct AdapterControlBlock *acb)
1303 {
1304 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1305 	CHIP_REG_WRITE32(HBA_MessageUnit,
1306 		0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_STOP_BGRB);
1307 	if(!arcmsr_hba_wait_msgint_ready(acb)) {
1308 		printf("arcmsr%d: wait 'stop adapter background rebulid' timeout \n"
1309 			, acb->pci_unit);
1310 	}
1311 }
1312 /*
1313 ************************************************************************
1314 ************************************************************************
1315 */
1316 static void arcmsr_stop_hbb_bgrb(struct AdapterControlBlock *acb)
1317 {
1318 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1319 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1320 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_STOP_BGRB);
1321 	if(!arcmsr_hbb_wait_msgint_ready(acb)) {
1322 		printf( "arcmsr%d: wait 'stop adapter background rebulid' timeout \n"
1323 			, acb->pci_unit);
1324 	}
1325 }
1326 /*
1327 ************************************************************************
1328 ************************************************************************
1329 */
1330 static void arcmsr_stop_hbc_bgrb(struct AdapterControlBlock *acb)
1331 {
1332 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1333 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_STOP_BGRB);
1334 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell,ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
1335 	if(!arcmsr_hbc_wait_msgint_ready(acb)) {
1336 		printf("arcmsr%d: wait 'stop adapter background rebulid' timeout \n", acb->pci_unit);
1337 	}
1338 }
1339 /*
1340 ************************************************************************
1341 ************************************************************************
1342 */
1343 static void arcmsr_stop_hbd_bgrb(struct AdapterControlBlock *acb)
1344 {
1345 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1346 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_STOP_BGRB);
1347 	if(!arcmsr_hbd_wait_msgint_ready(acb)) {
1348 		printf("arcmsr%d: wait 'stop adapter background rebulid' timeout \n", acb->pci_unit);
1349 	}
1350 }
1351 /*
1352 ************************************************************************
1353 ************************************************************************
1354 */
1355 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb)
1356 {
1357 	switch (acb->adapter_type) {
1358 	case ACB_ADAPTER_TYPE_A: {
1359 			arcmsr_stop_hba_bgrb(acb);
1360 		}
1361 		break;
1362 	case ACB_ADAPTER_TYPE_B: {
1363 			arcmsr_stop_hbb_bgrb(acb);
1364 		}
1365 		break;
1366 	case ACB_ADAPTER_TYPE_C: {
1367 			arcmsr_stop_hbc_bgrb(acb);
1368 		}
1369 		break;
1370 	case ACB_ADAPTER_TYPE_D: {
1371 			arcmsr_stop_hbd_bgrb(acb);
1372 		}
1373 		break;
1374 	}
1375 }
1376 /*
1377 ************************************************************************
1378 ************************************************************************
1379 */
1380 static void arcmsr_poll(struct cam_sim *psim)
1381 {
1382 	struct AdapterControlBlock *acb;
1383 	int	mutex;
1384 
1385 	acb = (struct AdapterControlBlock *)cam_sim_softc(psim);
1386 	mutex = mtx_owned(&acb->isr_lock);
1387 	if( mutex == 0 )
1388 		ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
1389 	arcmsr_interrupt(acb);
1390 	if( mutex == 0 )
1391 		ARCMSR_LOCK_RELEASE(&acb->isr_lock);
1392 }
1393 /*
1394 **************************************************************************
1395 **************************************************************************
1396 */
1397 static u_int32_t arcmsr_Read_iop_rqbuffer_data_D(struct AdapterControlBlock *acb,
1398 	struct QBUFFER *prbuffer) {
1399 
1400 	u_int8_t *pQbuffer;
1401 	u_int8_t *buf1 = 0;
1402 	u_int32_t *iop_data, *buf2 = 0;
1403 	u_int32_t iop_len, data_len;
1404 
1405 	iop_data = (u_int32_t *)prbuffer->data;
1406 	iop_len = (u_int32_t)prbuffer->data_len;
1407 	if ( iop_len > 0 )
1408 	{
1409 		buf1 = malloc(128, M_DEVBUF, M_NOWAIT | M_ZERO);
1410 		buf2 = (u_int32_t *)buf1;
1411 		if( buf1 == NULL)
1412 			return (0);
1413 		data_len = iop_len;
1414 		while(data_len >= 4)
1415 		{
1416 			*buf2++ = *iop_data++;
1417 			data_len -= 4;
1418 		}
1419 		if(data_len)
1420 			*buf2 = *iop_data;
1421 		buf2 = (u_int32_t *)buf1;
1422 	}
1423 	while (iop_len > 0) {
1424 		pQbuffer = &acb->rqbuffer[acb->rqbuf_lastindex];
1425 		*pQbuffer = *buf1;
1426 		acb->rqbuf_lastindex++;
1427 		/* if last, index number set it to 0 */
1428 		acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
1429 		buf1++;
1430 		iop_len--;
1431 	}
1432 	if(buf2)
1433 		free( (u_int8_t *)buf2, M_DEVBUF);
1434 	/* let IOP know data has been read */
1435 	arcmsr_iop_message_read(acb);
1436 	return (1);
1437 }
1438 /*
1439 **************************************************************************
1440 **************************************************************************
1441 */
1442 static u_int32_t arcmsr_Read_iop_rqbuffer_data(struct AdapterControlBlock *acb,
1443 	struct QBUFFER *prbuffer) {
1444 
1445 	u_int8_t *pQbuffer;
1446 	u_int8_t *iop_data;
1447 	u_int32_t iop_len;
1448 
1449 	if(acb->adapter_type & (ACB_ADAPTER_TYPE_C | ACB_ADAPTER_TYPE_D)) {
1450 		return(arcmsr_Read_iop_rqbuffer_data_D(acb, prbuffer));
1451 	}
1452 	iop_data = (u_int8_t *)prbuffer->data;
1453 	iop_len = (u_int32_t)prbuffer->data_len;
1454 	while (iop_len > 0) {
1455 		pQbuffer = &acb->rqbuffer[acb->rqbuf_lastindex];
1456 		*pQbuffer = *iop_data;
1457 		acb->rqbuf_lastindex++;
1458 		/* if last, index number set it to 0 */
1459 		acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
1460 		iop_data++;
1461 		iop_len--;
1462 	}
1463 	/* let IOP know data has been read */
1464 	arcmsr_iop_message_read(acb);
1465 	return (1);
1466 }
1467 /*
1468 **************************************************************************
1469 **************************************************************************
1470 */
1471 static void arcmsr_iop2drv_data_wrote_handle(struct AdapterControlBlock *acb)
1472 {
1473 	struct QBUFFER *prbuffer;
1474 	int my_empty_len;
1475 
1476 	/*check this iop data if overflow my rqbuffer*/
1477 	ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
1478 	prbuffer = arcmsr_get_iop_rqbuffer(acb);
1479 	my_empty_len = (acb->rqbuf_lastindex - acb->rqbuf_firstindex - 1) &
1480 		(ARCMSR_MAX_QBUFFER-1);
1481 	if(my_empty_len >= prbuffer->data_len) {
1482 		if(arcmsr_Read_iop_rqbuffer_data(acb, prbuffer) == 0)
1483 			acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
1484 	} else {
1485 		acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
1486 	}
1487 	ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
1488 }
1489 /*
1490 **********************************************************************
1491 **********************************************************************
1492 */
1493 static void arcmsr_Write_data_2iop_wqbuffer_D(struct AdapterControlBlock *acb)
1494 {
1495 	u_int8_t *pQbuffer;
1496 	struct QBUFFER *pwbuffer;
1497 	u_int8_t *buf1 = 0;
1498 	u_int32_t *iop_data, *buf2 = 0;
1499 	u_int32_t allxfer_len = 0, data_len;
1500 
1501 	if(acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READ) {
1502 		buf1 = malloc(128, M_DEVBUF, M_NOWAIT | M_ZERO);
1503 		buf2 = (u_int32_t *)buf1;
1504 		if( buf1 == NULL)
1505 			return;
1506 
1507 		acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READ);
1508 		pwbuffer = arcmsr_get_iop_wqbuffer(acb);
1509 		iop_data = (u_int32_t *)pwbuffer->data;
1510 		while((acb->wqbuf_firstindex != acb->wqbuf_lastindex)
1511 			&& (allxfer_len < 124)) {
1512 			pQbuffer = &acb->wqbuffer[acb->wqbuf_firstindex];
1513 			*buf1 = *pQbuffer;
1514 			acb->wqbuf_firstindex++;
1515 			acb->wqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
1516 			buf1++;
1517 			allxfer_len++;
1518 		}
1519 		pwbuffer->data_len = allxfer_len;
1520 		data_len = allxfer_len;
1521 		buf1 = (u_int8_t *)buf2;
1522 		while(data_len >= 4)
1523 		{
1524 			*iop_data++ = *buf2++;
1525 			data_len -= 4;
1526 		}
1527 		if(data_len)
1528 			*iop_data = *buf2;
1529 		free( buf1, M_DEVBUF);
1530 		arcmsr_iop_message_wrote(acb);
1531 	}
1532 }
1533 /*
1534 **********************************************************************
1535 **********************************************************************
1536 */
1537 static void arcmsr_Write_data_2iop_wqbuffer(struct AdapterControlBlock *acb)
1538 {
1539 	u_int8_t *pQbuffer;
1540 	struct QBUFFER *pwbuffer;
1541 	u_int8_t *iop_data;
1542 	int32_t allxfer_len=0;
1543 
1544 	if(acb->adapter_type & (ACB_ADAPTER_TYPE_C | ACB_ADAPTER_TYPE_D)) {
1545 		arcmsr_Write_data_2iop_wqbuffer_D(acb);
1546 		return;
1547 	}
1548 	if(acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READ) {
1549 		acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READ);
1550 		pwbuffer = arcmsr_get_iop_wqbuffer(acb);
1551 		iop_data = (u_int8_t *)pwbuffer->data;
1552 		while((acb->wqbuf_firstindex != acb->wqbuf_lastindex)
1553 			&& (allxfer_len < 124)) {
1554 			pQbuffer = &acb->wqbuffer[acb->wqbuf_firstindex];
1555 			*iop_data = *pQbuffer;
1556 			acb->wqbuf_firstindex++;
1557 			acb->wqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
1558 			iop_data++;
1559 			allxfer_len++;
1560 		}
1561 		pwbuffer->data_len = allxfer_len;
1562 		arcmsr_iop_message_wrote(acb);
1563 	}
1564 }
1565 /*
1566 **************************************************************************
1567 **************************************************************************
1568 */
1569 static void arcmsr_iop2drv_data_read_handle(struct AdapterControlBlock *acb)
1570 {
1571 	ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
1572 	acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_READ;
1573 	/*
1574 	*****************************************************************
1575 	**   check if there are any mail packages from user space program
1576 	**   in my post bag, now is the time to send them into Areca's firmware
1577 	*****************************************************************
1578 	*/
1579 	if(acb->wqbuf_firstindex != acb->wqbuf_lastindex) {
1580 		arcmsr_Write_data_2iop_wqbuffer(acb);
1581 	}
1582 	if(acb->wqbuf_firstindex == acb->wqbuf_lastindex) {
1583 		acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_CLEARED;
1584 	}
1585 	ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
1586 }
1587 /*
1588 **************************************************************************
1589 **************************************************************************
1590 */
1591 static void arcmsr_rescanLun_cb(struct cam_periph *periph, union ccb *ccb)
1592 {
1593 /*
1594 	if (ccb->ccb_h.status != CAM_REQ_CMP)
1595 		printf("arcmsr_rescanLun_cb: Rescan Target=%x, lun=%x,"
1596 			"failure status=%x\n", ccb->ccb_h.target_id,
1597 			ccb->ccb_h.target_lun, ccb->ccb_h.status);
1598 	else
1599 		printf("arcmsr_rescanLun_cb: Rescan lun successfully!\n");
1600 */
1601 	xpt_free_path(ccb->ccb_h.path);
1602 	xpt_free_ccb(ccb);
1603 }
1604 
1605 static void	arcmsr_rescan_lun(struct AdapterControlBlock *acb, int target, int lun)
1606 {
1607 	struct cam_path     *path;
1608 	union ccb           *ccb;
1609 
1610 	if ((ccb = (union ccb *)xpt_alloc_ccb_nowait()) == NULL)
1611 			return;
1612 	if (xpt_create_path(&path, NULL, cam_sim_path(acb->psim), target, lun) != CAM_REQ_CMP)
1613 	{
1614 		xpt_free_ccb(ccb);
1615 		return;
1616 	}
1617 /*	printf("arcmsr_rescan_lun: Rescan Target=%x, Lun=%x\n", target, lun); */
1618 	bzero(ccb, sizeof(union ccb));
1619 	xpt_setup_ccb(&ccb->ccb_h, path, 5);
1620 	ccb->ccb_h.func_code = XPT_SCAN_LUN;
1621 	ccb->ccb_h.cbfcnp = arcmsr_rescanLun_cb;
1622 	ccb->crcn.flags = CAM_FLAG_NONE;
1623 	xpt_action(ccb);
1624 }
1625 
1626 
1627 static void arcmsr_abort_dr_ccbs(struct AdapterControlBlock *acb, int target, int lun)
1628 {
1629 	struct CommandControlBlock *srb;
1630 	u_int32_t intmask_org;
1631 	int i;
1632 
1633 	/* disable all outbound interrupts */
1634 	intmask_org = arcmsr_disable_allintr(acb);
1635 	for (i = 0; i < ARCMSR_MAX_FREESRB_NUM; i++)
1636 	{
1637 		srb = acb->psrb_pool[i];
1638 		if (srb->srb_state == ARCMSR_SRB_START)
1639 		{
1640 			if((target == srb->pccb->ccb_h.target_id) && (lun == srb->pccb->ccb_h.target_lun))
1641 			{
1642 				srb->srb_state = ARCMSR_SRB_ABORTED;
1643 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
1644 				arcmsr_srb_complete(srb, 1);
1645 				printf("arcmsr%d: abort scsi id %d lun %d srb=%p \n", acb->pci_unit, target, lun, srb);
1646 			}
1647 		}
1648 	}
1649 	/* enable outbound Post Queue, outbound doorbell Interrupt */
1650 	arcmsr_enable_allintr(acb, intmask_org);
1651 }
1652 /*
1653 **************************************************************************
1654 **************************************************************************
1655 */
1656 static void arcmsr_dr_handle(struct AdapterControlBlock *acb) {
1657 	u_int32_t	devicemap;
1658 	u_int32_t	target, lun;
1659 	u_int32_t	deviceMapCurrent[4]={0};
1660 	u_int8_t	*pDevMap;
1661 
1662 	switch (acb->adapter_type) {
1663 	case ACB_ADAPTER_TYPE_A:
1664 		devicemap = offsetof(struct HBA_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1665 		for (target = 0; target < 4; target++)
1666 		{
1667 			deviceMapCurrent[target]=bus_space_read_4(acb->btag[0], acb->bhandle[0],  devicemap);
1668 			devicemap += 4;
1669 		}
1670 		break;
1671 
1672 	case ACB_ADAPTER_TYPE_B:
1673 		devicemap = offsetof(struct HBB_RWBUFFER, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1674 		for (target = 0; target < 4; target++)
1675 		{
1676 			deviceMapCurrent[target]=bus_space_read_4(acb->btag[1], acb->bhandle[1],  devicemap);
1677 			devicemap += 4;
1678 		}
1679 		break;
1680 
1681 	case ACB_ADAPTER_TYPE_C:
1682 		devicemap = offsetof(struct HBC_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1683 		for (target = 0; target < 4; target++)
1684 		{
1685 			deviceMapCurrent[target]=bus_space_read_4(acb->btag[0], acb->bhandle[0],  devicemap);
1686 			devicemap += 4;
1687 		}
1688 		break;
1689 	case ACB_ADAPTER_TYPE_D:
1690 		devicemap = offsetof(struct HBD_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1691 		for (target = 0; target < 4; target++)
1692 		{
1693 			deviceMapCurrent[target]=bus_space_read_4(acb->btag[0], acb->bhandle[0],  devicemap);
1694 			devicemap += 4;
1695 		}
1696 		break;
1697 	}
1698 
1699 	if(acb->acb_flags & ACB_F_BUS_HANG_ON)
1700 	{
1701 		acb->acb_flags &= ~ACB_F_BUS_HANG_ON;
1702 	}
1703 	/*
1704 	** adapter posted CONFIG message
1705 	** copy the new map, note if there are differences with the current map
1706 	*/
1707 	pDevMap = (u_int8_t	*)&deviceMapCurrent[0];
1708 	for (target = 0; target < ARCMSR_MAX_TARGETID - 1; target++)
1709 	{
1710 		if (*pDevMap != acb->device_map[target])
1711 		{
1712 			u_int8_t difference, bit_check;
1713 
1714 			difference = *pDevMap ^ acb->device_map[target];
1715 			for(lun=0; lun < ARCMSR_MAX_TARGETLUN; lun++)
1716 			{
1717 				bit_check = (1 << lun);		/*check bit from 0....31*/
1718 				if(difference & bit_check)
1719 				{
1720 					if(acb->device_map[target] & bit_check)
1721 					{/* unit departed */
1722 						printf("arcmsr_dr_handle: Target=%x, lun=%x, GONE!!!\n",target,lun);
1723 						arcmsr_abort_dr_ccbs(acb, target, lun);
1724 						arcmsr_rescan_lun(acb, target, lun);
1725 						acb->devstate[target][lun] = ARECA_RAID_GONE;
1726 					}
1727 					else
1728 					{/* unit arrived */
1729 						printf("arcmsr_dr_handle: Target=%x, lun=%x, Plug-IN!!!\n",target,lun);
1730 						arcmsr_rescan_lun(acb, target, lun);
1731 						acb->devstate[target][lun] = ARECA_RAID_GOOD;
1732 					}
1733 				}
1734 			}
1735 /*			printf("arcmsr_dr_handle: acb->device_map[%x]=0x%x, deviceMapCurrent[%x]=%x\n",target,acb->device_map[target],target,*pDevMap); */
1736 			acb->device_map[target] = *pDevMap;
1737 		}
1738 		pDevMap++;
1739 	}
1740 }
1741 /*
1742 **************************************************************************
1743 **************************************************************************
1744 */
1745 static void arcmsr_hba_message_isr(struct AdapterControlBlock *acb) {
1746 	u_int32_t outbound_message;
1747 
1748 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, ARCMSR_MU_OUTBOUND_MESSAGE0_INT);
1749 	outbound_message = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[0]);
1750 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1751 		arcmsr_dr_handle( acb );
1752 }
1753 /*
1754 **************************************************************************
1755 **************************************************************************
1756 */
1757 static void arcmsr_hbb_message_isr(struct AdapterControlBlock *acb) {
1758 	u_int32_t outbound_message;
1759 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1760 
1761 	/* clear interrupts */
1762 	WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_MESSAGE_INT_CLEAR_PATTERN);
1763 	outbound_message = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[0]);
1764 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1765 		arcmsr_dr_handle( acb );
1766 }
1767 /*
1768 **************************************************************************
1769 **************************************************************************
1770 */
1771 static void arcmsr_hbc_message_isr(struct AdapterControlBlock *acb) {
1772 	u_int32_t outbound_message;
1773 
1774 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, outbound_doorbell_clear, ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR);
1775 	outbound_message = CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[0]);
1776 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1777 		arcmsr_dr_handle( acb );
1778 }
1779 /*
1780 **************************************************************************
1781 **************************************************************************
1782 */
1783 static void arcmsr_hbd_message_isr(struct AdapterControlBlock *acb) {
1784 	u_int32_t outbound_message;
1785 
1786 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE_CLEAR);
1787 	outbound_message = CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[0]);
1788 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1789 		arcmsr_dr_handle( acb );
1790 }
1791 /*
1792 **************************************************************************
1793 **************************************************************************
1794 */
1795 static void arcmsr_hba_doorbell_isr(struct AdapterControlBlock *acb)
1796 {
1797 	u_int32_t doorbell_status;
1798 
1799 	/*
1800 	*******************************************************************
1801 	**  Maybe here we need to check wrqbuffer_lock is lock or not
1802 	**  DOORBELL: din! don!
1803 	**  check if there are any mail need to pack from firmware
1804 	*******************************************************************
1805 	*/
1806 	doorbell_status = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_doorbell);
1807 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_doorbell, doorbell_status); /* clear doorbell interrupt */
1808 	if(doorbell_status & ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK) {
1809 		arcmsr_iop2drv_data_wrote_handle(acb);
1810 	}
1811 	if(doorbell_status & ARCMSR_OUTBOUND_IOP331_DATA_READ_OK) {
1812 		arcmsr_iop2drv_data_read_handle(acb);
1813 	}
1814 }
1815 /*
1816 **************************************************************************
1817 **************************************************************************
1818 */
1819 static void arcmsr_hbc_doorbell_isr(struct AdapterControlBlock *acb)
1820 {
1821 	u_int32_t doorbell_status;
1822 
1823 	/*
1824 	*******************************************************************
1825 	**  Maybe here we need to check wrqbuffer_lock is lock or not
1826 	**  DOORBELL: din! don!
1827 	**  check if there are any mail need to pack from firmware
1828 	*******************************************************************
1829 	*/
1830 	doorbell_status = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_doorbell);
1831 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, outbound_doorbell_clear, doorbell_status); /* clear doorbell interrupt */
1832 	if(doorbell_status & ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK) {
1833 		arcmsr_iop2drv_data_wrote_handle(acb);
1834 	}
1835 	if(doorbell_status & ARCMSR_HBCMU_IOP2DRV_DATA_READ_OK) {
1836 		arcmsr_iop2drv_data_read_handle(acb);
1837 	}
1838 	if(doorbell_status & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
1839 		arcmsr_hbc_message_isr(acb);    /* messenger of "driver to iop commands" */
1840 	}
1841 }
1842 /*
1843 **************************************************************************
1844 **************************************************************************
1845 */
1846 static void arcmsr_hbd_doorbell_isr(struct AdapterControlBlock *acb)
1847 {
1848 	u_int32_t doorbell_status;
1849 
1850 	/*
1851 	*******************************************************************
1852 	**  Maybe here we need to check wrqbuffer_lock is lock or not
1853 	**  DOORBELL: din! don!
1854 	**  check if there are any mail need to pack from firmware
1855 	*******************************************************************
1856 	*/
1857 	doorbell_status = CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBDMU_F0_DOORBELL_CAUSE;
1858 	if(doorbell_status)
1859 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, doorbell_status); /* clear doorbell interrupt */
1860 	while( doorbell_status & ARCMSR_HBDMU_F0_DOORBELL_CAUSE ) {
1861 		if(doorbell_status & ARCMSR_HBDMU_IOP2DRV_DATA_WRITE_OK) {
1862 			arcmsr_iop2drv_data_wrote_handle(acb);
1863 		}
1864 		if(doorbell_status & ARCMSR_HBDMU_IOP2DRV_DATA_READ_OK) {
1865 			arcmsr_iop2drv_data_read_handle(acb);
1866 		}
1867 		if(doorbell_status & ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE) {
1868 			arcmsr_hbd_message_isr(acb);    /* messenger of "driver to iop commands" */
1869 		}
1870 		doorbell_status = CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBDMU_F0_DOORBELL_CAUSE;
1871 		if(doorbell_status)
1872 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, doorbell_status); /* clear doorbell interrupt */
1873 	}
1874 }
1875 /*
1876 **************************************************************************
1877 **************************************************************************
1878 */
1879 static void arcmsr_hba_postqueue_isr(struct AdapterControlBlock *acb)
1880 {
1881 	u_int32_t flag_srb;
1882 	u_int16_t error;
1883 
1884 	/*
1885 	*****************************************************************************
1886 	**               areca cdb command done
1887 	*****************************************************************************
1888 	*/
1889 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap,
1890 		BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
1891 	while((flag_srb = CHIP_REG_READ32(HBA_MessageUnit,
1892 		0, outbound_queueport)) != 0xFFFFFFFF) {
1893 		/* check if command done with no error*/
1894 	error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0) ? TRUE : FALSE;
1895 		arcmsr_drain_donequeue(acb, flag_srb, error);
1896 	}	/*drain reply FIFO*/
1897 }
1898 /*
1899 **************************************************************************
1900 **************************************************************************
1901 */
1902 static void arcmsr_hbb_postqueue_isr(struct AdapterControlBlock *acb)
1903 {
1904 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1905 	u_int32_t flag_srb;
1906 	int index;
1907 	u_int16_t error;
1908 
1909 	/*
1910 	*****************************************************************************
1911 	**               areca cdb command done
1912 	*****************************************************************************
1913 	*/
1914 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap,
1915 		BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
1916 	index = phbbmu->doneq_index;
1917 	while((flag_srb = phbbmu->done_qbuffer[index]) != 0) {
1918 		phbbmu->done_qbuffer[index] = 0;
1919 		index++;
1920 		index %= ARCMSR_MAX_HBB_POSTQUEUE;     /*if last index number set it to 0 */
1921 		phbbmu->doneq_index = index;
1922 		/* check if command done with no error*/
1923 	error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0)?TRUE:FALSE;
1924 		arcmsr_drain_donequeue(acb, flag_srb, error);
1925 	}	/*drain reply FIFO*/
1926 }
1927 /*
1928 **************************************************************************
1929 **************************************************************************
1930 */
1931 static void arcmsr_hbc_postqueue_isr(struct AdapterControlBlock *acb)
1932 {
1933 	u_int32_t flag_srb,throttling = 0;
1934 	u_int16_t error;
1935 
1936 	/*
1937 	*****************************************************************************
1938 	**               areca cdb command done
1939 	*****************************************************************************
1940 	*/
1941 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
1942 	do {
1943 		flag_srb = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_queueport_low);
1944 		if (flag_srb == 0xFFFFFFFF)
1945 			break;
1946 		/* check if command done with no error*/
1947 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1)?TRUE:FALSE;
1948 		arcmsr_drain_donequeue(acb, flag_srb, error);
1949 		throttling++;
1950 		if(throttling == ARCMSR_HBC_ISR_THROTTLING_LEVEL) {
1951 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell,ARCMSR_HBCMU_DRV2IOP_POSTQUEUE_THROTTLING);
1952 			throttling = 0;
1953 		}
1954 	} while(CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR);
1955 }
1956 /*
1957 **********************************************************************
1958 **
1959 **********************************************************************
1960 */
1961 static uint16_t arcmsr_get_doneq_index(struct HBD_MessageUnit0 *phbdmu)
1962 {
1963 	uint16_t doneq_index, index_stripped;
1964 
1965 	doneq_index = phbdmu->doneq_index;
1966 	if (doneq_index & 0x4000) {
1967 		index_stripped = doneq_index & 0xFF;
1968 		index_stripped += 1;
1969 		index_stripped %= ARCMSR_MAX_HBD_POSTQUEUE;
1970 		phbdmu->doneq_index = index_stripped ?
1971 		    (index_stripped | 0x4000) : index_stripped;
1972 	} else {
1973 		index_stripped = doneq_index;
1974 		index_stripped += 1;
1975 		index_stripped %= ARCMSR_MAX_HBD_POSTQUEUE;
1976 		phbdmu->doneq_index = index_stripped ?
1977 		    index_stripped : (index_stripped | 0x4000);
1978 	}
1979 	return (phbdmu->doneq_index);
1980 }
1981 /*
1982 **************************************************************************
1983 **************************************************************************
1984 */
1985 static void arcmsr_hbd_postqueue_isr(struct AdapterControlBlock *acb)
1986 {
1987 	struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
1988 	u_int32_t outbound_write_pointer;
1989 	u_int32_t addressLow;
1990 	uint16_t doneq_index;
1991 	u_int16_t error;
1992 	/*
1993 	*****************************************************************************
1994 	**               areca cdb command done
1995 	*****************************************************************************
1996 	*/
1997 	if((CHIP_REG_READ32(HBD_MessageUnit, 0, outboundlist_interrupt_cause) &
1998 		ARCMSR_HBDMU_OUTBOUND_LIST_INTERRUPT) == 0)
1999 		return;
2000 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap,
2001 		BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
2002 	outbound_write_pointer = phbdmu->done_qbuffer[0].addressLow;
2003 	doneq_index = phbdmu->doneq_index;
2004 	while ((doneq_index & 0xFF) != (outbound_write_pointer & 0xFF)) {
2005 		doneq_index = arcmsr_get_doneq_index(phbdmu);
2006 		addressLow = phbdmu->done_qbuffer[(doneq_index & 0xFF)+1].addressLow;
2007 		error = (addressLow & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1) ? TRUE : FALSE;
2008 		arcmsr_drain_donequeue(acb, addressLow, error); /*Check if command done with no error */
2009 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, outboundlist_read_pointer, doneq_index);
2010 		outbound_write_pointer = phbdmu->done_qbuffer[0].addressLow;
2011 	}
2012 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, outboundlist_interrupt_cause, ARCMSR_HBDMU_OUTBOUND_LIST_INTERRUPT_CLEAR);
2013 	CHIP_REG_READ32(HBD_MessageUnit, 0, outboundlist_interrupt_cause); /*Dummy ioread32 to force pci flush */
2014 }
2015 /*
2016 **********************************************************************
2017 **********************************************************************
2018 */
2019 static void arcmsr_handle_hba_isr( struct AdapterControlBlock *acb)
2020 {
2021 	u_int32_t outbound_intStatus;
2022 	/*
2023 	*********************************************
2024 	**   check outbound intstatus
2025 	*********************************************
2026 	*/
2027 	outbound_intStatus = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intstatus) & acb->outbound_int_enable;
2028 	if(!outbound_intStatus) {
2029 		/*it must be share irq*/
2030 		return;
2031 	}
2032 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, outbound_intStatus); /*clear interrupt*/
2033 	/* MU doorbell interrupts*/
2034 	if(outbound_intStatus & ARCMSR_MU_OUTBOUND_DOORBELL_INT) {
2035 		arcmsr_hba_doorbell_isr(acb);
2036 	}
2037 	/* MU post queue interrupts*/
2038 	if(outbound_intStatus & ARCMSR_MU_OUTBOUND_POSTQUEUE_INT) {
2039 		arcmsr_hba_postqueue_isr(acb);
2040 	}
2041 	if(outbound_intStatus & ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
2042 		arcmsr_hba_message_isr(acb);
2043 	}
2044 }
2045 /*
2046 **********************************************************************
2047 **********************************************************************
2048 */
2049 static void arcmsr_handle_hbb_isr( struct AdapterControlBlock *acb)
2050 {
2051 	u_int32_t outbound_doorbell;
2052 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
2053 	/*
2054 	*********************************************
2055 	**   check outbound intstatus
2056 	*********************************************
2057 	*/
2058 	outbound_doorbell = READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell) & acb->outbound_int_enable;
2059 	if(!outbound_doorbell) {
2060 		/*it must be share irq*/
2061 		return;
2062 	}
2063 	WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ~outbound_doorbell); /* clear doorbell interrupt */
2064 	READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell);
2065 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_END_OF_INTERRUPT);
2066 	/* MU ioctl transfer doorbell interrupts*/
2067 	if(outbound_doorbell & ARCMSR_IOP2DRV_DATA_WRITE_OK) {
2068 		arcmsr_iop2drv_data_wrote_handle(acb);
2069 	}
2070 	if(outbound_doorbell & ARCMSR_IOP2DRV_DATA_READ_OK) {
2071 		arcmsr_iop2drv_data_read_handle(acb);
2072 	}
2073 	/* MU post queue interrupts*/
2074 	if(outbound_doorbell & ARCMSR_IOP2DRV_CDB_DONE) {
2075 		arcmsr_hbb_postqueue_isr(acb);
2076 	}
2077 	if(outbound_doorbell & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
2078 		arcmsr_hbb_message_isr(acb);
2079 	}
2080 }
2081 /*
2082 **********************************************************************
2083 **********************************************************************
2084 */
2085 static void arcmsr_handle_hbc_isr( struct AdapterControlBlock *acb)
2086 {
2087 	u_int32_t host_interrupt_status;
2088 	/*
2089 	*********************************************
2090 	**   check outbound intstatus
2091 	*********************************************
2092 	*/
2093 	host_interrupt_status = CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status) &
2094 		(ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR |
2095 		ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR);
2096 	if(!host_interrupt_status) {
2097 		/*it must be share irq*/
2098 		return;
2099 	}
2100 	do {
2101 		/* MU doorbell interrupts*/
2102 		if(host_interrupt_status & ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR) {
2103 			arcmsr_hbc_doorbell_isr(acb);
2104 		}
2105 		/* MU post queue interrupts*/
2106 		if(host_interrupt_status & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) {
2107 			arcmsr_hbc_postqueue_isr(acb);
2108 		}
2109 		host_interrupt_status = CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status);
2110 	} while (host_interrupt_status & (ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR | ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR));
2111 }
2112 /*
2113 **********************************************************************
2114 **********************************************************************
2115 */
2116 static void arcmsr_handle_hbd_isr( struct AdapterControlBlock *acb)
2117 {
2118 	u_int32_t host_interrupt_status;
2119 	u_int32_t intmask_org;
2120 	/*
2121 	*********************************************
2122 	**   check outbound intstatus
2123 	*********************************************
2124 	*/
2125 	host_interrupt_status = CHIP_REG_READ32(HBD_MessageUnit, 0, host_int_status) & acb->outbound_int_enable;
2126 	if(!(host_interrupt_status & ARCMSR_HBDMU_OUTBOUND_INT)) {
2127 		/*it must be share irq*/
2128 		return;
2129 	}
2130 	/* disable outbound interrupt */
2131 	intmask_org = CHIP_REG_READ32(HBD_MessageUnit, 0, pcief0_int_enable)	; /* disable outbound message0 int */
2132 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, pcief0_int_enable, ARCMSR_HBDMU_ALL_INT_DISABLE);
2133 	/* MU doorbell interrupts*/
2134 	if(host_interrupt_status & ARCMSR_HBDMU_OUTBOUND_DOORBELL_INT) {
2135 		arcmsr_hbd_doorbell_isr(acb);
2136 	}
2137 	/* MU post queue interrupts*/
2138 	if(host_interrupt_status & ARCMSR_HBDMU_OUTBOUND_POSTQUEUE_INT) {
2139 		arcmsr_hbd_postqueue_isr(acb);
2140 	}
2141 	/* enable all outbound interrupt */
2142 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, pcief0_int_enable, intmask_org | ARCMSR_HBDMU_ALL_INT_ENABLE);
2143 //	CHIP_REG_READ32(HBD_MessageUnit, 0, pcief0_int_enable);
2144 }
2145 /*
2146 ******************************************************************************
2147 ******************************************************************************
2148 */
2149 static void arcmsr_interrupt(struct AdapterControlBlock *acb)
2150 {
2151 	switch (acb->adapter_type) {
2152 	case ACB_ADAPTER_TYPE_A:
2153 		arcmsr_handle_hba_isr(acb);
2154 		break;
2155 	case ACB_ADAPTER_TYPE_B:
2156 		arcmsr_handle_hbb_isr(acb);
2157 		break;
2158 	case ACB_ADAPTER_TYPE_C:
2159 		arcmsr_handle_hbc_isr(acb);
2160 		break;
2161 	case ACB_ADAPTER_TYPE_D:
2162 		arcmsr_handle_hbd_isr(acb);
2163 		break;
2164 	default:
2165 		printf("arcmsr%d: interrupt service,"
2166 		" unknown adapter type =%d\n", acb->pci_unit, acb->adapter_type);
2167 		break;
2168 	}
2169 }
2170 /*
2171 **********************************************************************
2172 **********************************************************************
2173 */
2174 static void arcmsr_intr_handler(void *arg)
2175 {
2176 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *)arg;
2177 
2178 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
2179 	arcmsr_interrupt(acb);
2180 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
2181 }
2182 /*
2183 ******************************************************************************
2184 ******************************************************************************
2185 */
2186 static void	arcmsr_polling_devmap(void *arg)
2187 {
2188 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *)arg;
2189 	switch (acb->adapter_type) {
2190 	case ACB_ADAPTER_TYPE_A:
2191 		CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
2192 		break;
2193 
2194     	case ACB_ADAPTER_TYPE_B: {
2195 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
2196 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_GET_CONFIG);
2197 		}
2198 		break;
2199 
2200 	case ACB_ADAPTER_TYPE_C:
2201 		CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
2202 		CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
2203 		break;
2204 
2205 	case ACB_ADAPTER_TYPE_D:
2206 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
2207 		break;
2208 	}
2209 
2210 	if((acb->acb_flags & ACB_F_SCSISTOPADAPTER) == 0)
2211 	{
2212 		callout_reset(&acb->devmap_callout, 5 * hz, arcmsr_polling_devmap, acb);	/* polling per 5 seconds */
2213 	}
2214 }
2215 
2216 /*
2217 *******************************************************************************
2218 **
2219 *******************************************************************************
2220 */
2221 static void arcmsr_iop_parking(struct AdapterControlBlock *acb)
2222 {
2223 	u_int32_t intmask_org;
2224 
2225 	if(acb != NULL) {
2226 		/* stop adapter background rebuild */
2227 		if(acb->acb_flags & ACB_F_MSG_START_BGRB) {
2228 			intmask_org = arcmsr_disable_allintr(acb);
2229 			arcmsr_stop_adapter_bgrb(acb);
2230 			arcmsr_flush_adapter_cache(acb);
2231 			arcmsr_enable_allintr(acb, intmask_org);
2232 		}
2233 	}
2234 }
2235 /*
2236 ***********************************************************************
2237 **
2238 ************************************************************************
2239 */
2240 u_int32_t arcmsr_iop_ioctlcmd(struct AdapterControlBlock *acb, u_int32_t ioctl_cmd, caddr_t arg)
2241 {
2242 	struct CMD_MESSAGE_FIELD *pcmdmessagefld;
2243 	u_int32_t retvalue = EINVAL;
2244 
2245 	pcmdmessagefld = (struct CMD_MESSAGE_FIELD *) arg;
2246 	if(memcmp(pcmdmessagefld->cmdmessage.Signature, "ARCMSR", 6)!=0) {
2247 		return retvalue;
2248 	}
2249 	ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2250 	switch(ioctl_cmd) {
2251 	case ARCMSR_MESSAGE_READ_RQBUFFER: {
2252 			u_int8_t *pQbuffer;
2253 			u_int8_t *ptmpQbuffer = pcmdmessagefld->messagedatabuffer;
2254 			u_int32_t allxfer_len=0;
2255 
2256 			while((acb->rqbuf_firstindex != acb->rqbuf_lastindex)
2257 				&& (allxfer_len < 1031)) {
2258 				/*copy READ QBUFFER to srb*/
2259 				pQbuffer = &acb->rqbuffer[acb->rqbuf_firstindex];
2260 				*ptmpQbuffer = *pQbuffer;
2261 				acb->rqbuf_firstindex++;
2262 				acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
2263 				/*if last index number set it to 0 */
2264 				ptmpQbuffer++;
2265 				allxfer_len++;
2266 			}
2267 			if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2268 				struct QBUFFER *prbuffer;
2269 
2270 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2271 				prbuffer = arcmsr_get_iop_rqbuffer(acb);
2272 				if(arcmsr_Read_iop_rqbuffer_data(acb, prbuffer) == 0)
2273 					acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
2274 			}
2275 			pcmdmessagefld->cmdmessage.Length = allxfer_len;
2276 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2277 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2278 		}
2279 		break;
2280 	case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
2281 			u_int32_t my_empty_len, user_len, wqbuf_firstindex, wqbuf_lastindex;
2282 			u_int8_t *pQbuffer;
2283 			u_int8_t *ptmpuserbuffer = pcmdmessagefld->messagedatabuffer;
2284 
2285 			user_len = pcmdmessagefld->cmdmessage.Length;
2286 			/*check if data xfer length of this request will overflow my array qbuffer */
2287 			wqbuf_lastindex = acb->wqbuf_lastindex;
2288 			wqbuf_firstindex = acb->wqbuf_firstindex;
2289 			if(wqbuf_lastindex != wqbuf_firstindex) {
2290 				arcmsr_Write_data_2iop_wqbuffer(acb);
2291 				pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_ERROR;
2292 			} else {
2293 				my_empty_len = (wqbuf_firstindex - wqbuf_lastindex - 1) &
2294 					(ARCMSR_MAX_QBUFFER - 1);
2295 				if(my_empty_len >= user_len) {
2296 					while(user_len > 0) {
2297 						/*copy srb data to wqbuffer*/
2298 						pQbuffer = &acb->wqbuffer[acb->wqbuf_lastindex];
2299 						*pQbuffer = *ptmpuserbuffer;
2300 						acb->wqbuf_lastindex++;
2301 						acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
2302 						/*if last index number set it to 0 */
2303 						ptmpuserbuffer++;
2304 						user_len--;
2305 					}
2306 					/*post fist Qbuffer*/
2307 					if(acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
2308 						acb->acb_flags &= ~ACB_F_MESSAGE_WQBUFFER_CLEARED;
2309 						arcmsr_Write_data_2iop_wqbuffer(acb);
2310 					}
2311 					pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2312 				} else {
2313 					pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_ERROR;
2314 				}
2315 			}
2316 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2317 		}
2318 		break;
2319 	case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
2320 			u_int8_t *pQbuffer = acb->rqbuffer;
2321 
2322 			if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2323 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2324 				arcmsr_iop_message_read(acb);
2325 				/*signature, let IOP know data has been readed */
2326 			}
2327 			acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
2328 			acb->rqbuf_firstindex = 0;
2329 			acb->rqbuf_lastindex = 0;
2330 			memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
2331 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2332 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2333 		}
2334 		break;
2335 	case ARCMSR_MESSAGE_CLEAR_WQBUFFER:
2336 		{
2337 			u_int8_t *pQbuffer = acb->wqbuffer;
2338 
2339 			if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2340 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2341 				arcmsr_iop_message_read(acb);
2342 				/*signature, let IOP know data has been readed */
2343 			}
2344 			acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED|ACB_F_MESSAGE_WQBUFFER_READ);
2345 			acb->wqbuf_firstindex = 0;
2346 			acb->wqbuf_lastindex = 0;
2347 			memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
2348 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2349 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2350 		}
2351 		break;
2352 	case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: {
2353 			u_int8_t *pQbuffer;
2354 
2355 			if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2356 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2357 				arcmsr_iop_message_read(acb);
2358 				/*signature, let IOP know data has been readed */
2359 			}
2360 			acb->acb_flags  |= (ACB_F_MESSAGE_WQBUFFER_CLEARED
2361 					|ACB_F_MESSAGE_RQBUFFER_CLEARED
2362 					|ACB_F_MESSAGE_WQBUFFER_READ);
2363 			acb->rqbuf_firstindex = 0;
2364 			acb->rqbuf_lastindex = 0;
2365 			acb->wqbuf_firstindex = 0;
2366 			acb->wqbuf_lastindex = 0;
2367 			pQbuffer = acb->rqbuffer;
2368 			memset(pQbuffer, 0, sizeof(struct QBUFFER));
2369 			pQbuffer = acb->wqbuffer;
2370 			memset(pQbuffer, 0, sizeof(struct QBUFFER));
2371 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2372 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2373 		}
2374 		break;
2375 	case ARCMSR_MESSAGE_REQUEST_RETURNCODE_3F: {
2376 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_3F;
2377 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2378 		}
2379 		break;
2380 	case ARCMSR_MESSAGE_SAY_HELLO: {
2381 			u_int8_t *hello_string = "Hello! I am ARCMSR";
2382 			u_int8_t *puserbuffer = (u_int8_t *)pcmdmessagefld->messagedatabuffer;
2383 
2384 			if(memcpy(puserbuffer, hello_string, (int16_t)strlen(hello_string))) {
2385 				pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_ERROR;
2386 				ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2387 				return ENOIOCTL;
2388 			}
2389 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2390 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2391 		}
2392 		break;
2393 	case ARCMSR_MESSAGE_SAY_GOODBYE: {
2394 			arcmsr_iop_parking(acb);
2395 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2396 		}
2397 		break;
2398 	case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE: {
2399 			arcmsr_flush_adapter_cache(acb);
2400 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2401 		}
2402 		break;
2403 	}
2404 	ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2405 	return (retvalue);
2406 }
2407 /*
2408 **************************************************************************
2409 **************************************************************************
2410 */
2411 static void arcmsr_free_srb(struct CommandControlBlock *srb)
2412 {
2413 	struct AdapterControlBlock	*acb;
2414 
2415 	acb = srb->acb;
2416 	ARCMSR_LOCK_ACQUIRE(&acb->srb_lock);
2417 	srb->srb_state = ARCMSR_SRB_DONE;
2418 	srb->srb_flags = 0;
2419 	acb->srbworkingQ[acb->workingsrb_doneindex] = srb;
2420 	acb->workingsrb_doneindex++;
2421 	acb->workingsrb_doneindex %= ARCMSR_MAX_FREESRB_NUM;
2422 	ARCMSR_LOCK_RELEASE(&acb->srb_lock);
2423 }
2424 /*
2425 **************************************************************************
2426 **************************************************************************
2427 */
2428 struct CommandControlBlock *arcmsr_get_freesrb(struct AdapterControlBlock *acb)
2429 {
2430 	struct CommandControlBlock *srb = NULL;
2431 	u_int32_t workingsrb_startindex, workingsrb_doneindex;
2432 
2433 	ARCMSR_LOCK_ACQUIRE(&acb->srb_lock);
2434 	workingsrb_doneindex = acb->workingsrb_doneindex;
2435 	workingsrb_startindex = acb->workingsrb_startindex;
2436 	srb = acb->srbworkingQ[workingsrb_startindex];
2437 	workingsrb_startindex++;
2438 	workingsrb_startindex %= ARCMSR_MAX_FREESRB_NUM;
2439 	if(workingsrb_doneindex != workingsrb_startindex) {
2440 		acb->workingsrb_startindex = workingsrb_startindex;
2441 	} else {
2442 		srb = NULL;
2443 	}
2444 	ARCMSR_LOCK_RELEASE(&acb->srb_lock);
2445 	return(srb);
2446 }
2447 /*
2448 **************************************************************************
2449 **************************************************************************
2450 */
2451 static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, union ccb *pccb)
2452 {
2453 	struct CMD_MESSAGE_FIELD *pcmdmessagefld;
2454 	int retvalue = 0, transfer_len = 0;
2455 	char *buffer;
2456 	u_int32_t controlcode = (u_int32_t ) pccb->csio.cdb_io.cdb_bytes[5] << 24 |
2457 				(u_int32_t ) pccb->csio.cdb_io.cdb_bytes[6] << 16 |
2458 				(u_int32_t ) pccb->csio.cdb_io.cdb_bytes[7] << 8  |
2459 				(u_int32_t ) pccb->csio.cdb_io.cdb_bytes[8];
2460 					/* 4 bytes: Areca io control code */
2461 	if ((pccb->ccb_h.flags & CAM_DATA_MASK) == CAM_DATA_VADDR) {
2462 		buffer = pccb->csio.data_ptr;
2463 		transfer_len = pccb->csio.dxfer_len;
2464 	} else {
2465 		retvalue = ARCMSR_MESSAGE_FAIL;
2466 		goto message_out;
2467 	}
2468 	if (transfer_len > sizeof(struct CMD_MESSAGE_FIELD)) {
2469 		retvalue = ARCMSR_MESSAGE_FAIL;
2470 		goto message_out;
2471 	}
2472 	pcmdmessagefld = (struct CMD_MESSAGE_FIELD *) buffer;
2473 	switch(controlcode) {
2474 	case ARCMSR_MESSAGE_READ_RQBUFFER: {
2475 			u_int8_t *pQbuffer;
2476 			u_int8_t *ptmpQbuffer = pcmdmessagefld->messagedatabuffer;
2477 			int32_t allxfer_len = 0;
2478 
2479 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2480 			while ((acb->rqbuf_firstindex != acb->rqbuf_lastindex)
2481 				&& (allxfer_len < 1031)) {
2482 				pQbuffer = &acb->rqbuffer[acb->rqbuf_firstindex];
2483 				*ptmpQbuffer = *pQbuffer;
2484 				acb->rqbuf_firstindex++;
2485 				acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
2486 				ptmpQbuffer++;
2487 				allxfer_len++;
2488 			}
2489 			if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2490 				struct QBUFFER  *prbuffer;
2491 
2492 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2493 				prbuffer = arcmsr_get_iop_rqbuffer(acb);
2494 				if(arcmsr_Read_iop_rqbuffer_data(acb, prbuffer) == 0)
2495 					acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
2496 			}
2497 			pcmdmessagefld->cmdmessage.Length = allxfer_len;
2498 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2499 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2500 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2501 		}
2502 		break;
2503 	case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
2504 			int32_t my_empty_len, user_len, wqbuf_firstindex, wqbuf_lastindex;
2505 			u_int8_t *pQbuffer;
2506 			u_int8_t *ptmpuserbuffer = pcmdmessagefld->messagedatabuffer;
2507 
2508 			user_len = pcmdmessagefld->cmdmessage.Length;
2509 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2510 			wqbuf_lastindex = acb->wqbuf_lastindex;
2511 			wqbuf_firstindex = acb->wqbuf_firstindex;
2512 			if (wqbuf_lastindex != wqbuf_firstindex) {
2513 				arcmsr_Write_data_2iop_wqbuffer(acb);
2514 				/* has error report sensedata */
2515 				if(pccb->csio.sense_len) {
2516 				((u_int8_t *)&pccb->csio.sense_data)[0] = (0x1 << 7 | 0x70);
2517 				/* Valid,ErrorCode */
2518 				((u_int8_t *)&pccb->csio.sense_data)[2] = 0x05;
2519 				/* FileMark,EndOfMedia,IncorrectLength,Reserved,SenseKey */
2520 				((u_int8_t *)&pccb->csio.sense_data)[7] = 0x0A;
2521 				/* AdditionalSenseLength */
2522 				((u_int8_t *)&pccb->csio.sense_data)[12] = 0x20;
2523 				/* AdditionalSenseCode */
2524 				}
2525 				retvalue = ARCMSR_MESSAGE_FAIL;
2526 			} else {
2527 				my_empty_len = (wqbuf_firstindex-wqbuf_lastindex - 1)
2528 						&(ARCMSR_MAX_QBUFFER - 1);
2529 				if (my_empty_len >= user_len) {
2530 					while (user_len > 0) {
2531 						pQbuffer = &acb->wqbuffer[acb->wqbuf_lastindex];
2532 						*pQbuffer = *ptmpuserbuffer;
2533 						acb->wqbuf_lastindex++;
2534 						acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
2535 						ptmpuserbuffer++;
2536 						user_len--;
2537 					}
2538 					if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
2539 						acb->acb_flags &=
2540 						    ~ACB_F_MESSAGE_WQBUFFER_CLEARED;
2541 						arcmsr_Write_data_2iop_wqbuffer(acb);
2542 					}
2543 				} else {
2544 					/* has error report sensedata */
2545 					if(pccb->csio.sense_len) {
2546 					((u_int8_t *)&pccb->csio.sense_data)[0] = (0x1 << 7 | 0x70);
2547 					/* Valid,ErrorCode */
2548 					((u_int8_t *)&pccb->csio.sense_data)[2] = 0x05;
2549 					/* FileMark,EndOfMedia,IncorrectLength,Reserved,SenseKey */
2550 					((u_int8_t *)&pccb->csio.sense_data)[7] = 0x0A;
2551 					/* AdditionalSenseLength */
2552 					((u_int8_t *)&pccb->csio.sense_data)[12] = 0x20;
2553 					/* AdditionalSenseCode */
2554 					}
2555 					retvalue = ARCMSR_MESSAGE_FAIL;
2556 				}
2557 			}
2558 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2559 		}
2560 		break;
2561 	case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
2562 			u_int8_t *pQbuffer = acb->rqbuffer;
2563 
2564 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2565 			if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2566 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2567 				arcmsr_iop_message_read(acb);
2568 			}
2569 			acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
2570 			acb->rqbuf_firstindex = 0;
2571 			acb->rqbuf_lastindex = 0;
2572 			memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
2573 			pcmdmessagefld->cmdmessage.ReturnCode =
2574 			    ARCMSR_MESSAGE_RETURNCODE_OK;
2575 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2576 		}
2577 		break;
2578 	case ARCMSR_MESSAGE_CLEAR_WQBUFFER: {
2579 			u_int8_t *pQbuffer = acb->wqbuffer;
2580 
2581 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2582 			if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2583 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2584 				arcmsr_iop_message_read(acb);
2585 			}
2586 			acb->acb_flags |=
2587 				(ACB_F_MESSAGE_WQBUFFER_CLEARED |
2588 					ACB_F_MESSAGE_WQBUFFER_READ);
2589 			acb->wqbuf_firstindex = 0;
2590 			acb->wqbuf_lastindex = 0;
2591 			memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
2592 			pcmdmessagefld->cmdmessage.ReturnCode =
2593 				ARCMSR_MESSAGE_RETURNCODE_OK;
2594 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2595 		}
2596 		break;
2597 	case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: {
2598 			u_int8_t *pQbuffer;
2599 
2600 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2601 			if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2602 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2603 				arcmsr_iop_message_read(acb);
2604 			}
2605 			acb->acb_flags |=
2606 				(ACB_F_MESSAGE_WQBUFFER_CLEARED
2607 				| ACB_F_MESSAGE_RQBUFFER_CLEARED
2608 				| ACB_F_MESSAGE_WQBUFFER_READ);
2609 			acb->rqbuf_firstindex = 0;
2610 			acb->rqbuf_lastindex = 0;
2611 			acb->wqbuf_firstindex = 0;
2612 			acb->wqbuf_lastindex = 0;
2613 			pQbuffer = acb->rqbuffer;
2614 			memset(pQbuffer, 0, sizeof (struct QBUFFER));
2615 			pQbuffer = acb->wqbuffer;
2616 			memset(pQbuffer, 0, sizeof (struct QBUFFER));
2617 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2618 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2619 		}
2620 		break;
2621 	case ARCMSR_MESSAGE_REQUEST_RETURNCODE_3F: {
2622 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_3F;
2623 		}
2624 		break;
2625 	case ARCMSR_MESSAGE_SAY_HELLO: {
2626 			int8_t *hello_string = "Hello! I am ARCMSR";
2627 
2628 			memcpy(pcmdmessagefld->messagedatabuffer, hello_string
2629 				, (int16_t)strlen(hello_string));
2630 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2631 		}
2632 		break;
2633 	case ARCMSR_MESSAGE_SAY_GOODBYE:
2634 		arcmsr_iop_parking(acb);
2635 		break;
2636 	case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE:
2637 		arcmsr_flush_adapter_cache(acb);
2638 		break;
2639 	default:
2640 		retvalue = ARCMSR_MESSAGE_FAIL;
2641 	}
2642 message_out:
2643 	return (retvalue);
2644 }
2645 /*
2646 *********************************************************************
2647 *********************************************************************
2648 */
2649 static void arcmsr_execute_srb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
2650 {
2651 	struct CommandControlBlock *srb = (struct CommandControlBlock *)arg;
2652 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *)srb->acb;
2653 	union ccb *pccb;
2654 	int target, lun;
2655 
2656 	pccb = srb->pccb;
2657 	target = pccb->ccb_h.target_id;
2658 	lun = pccb->ccb_h.target_lun;
2659 	acb->pktRequestCount++;
2660 	if(error != 0) {
2661 		if(error != EFBIG) {
2662 			printf("arcmsr%d: unexpected error %x"
2663 				" returned from 'bus_dmamap_load' \n"
2664 				, acb->pci_unit, error);
2665 		}
2666 		if((pccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INPROG) {
2667 			pccb->ccb_h.status |= CAM_REQ_TOO_BIG;
2668 		}
2669 		arcmsr_srb_complete(srb, 0);
2670 		return;
2671 	}
2672 	if(nseg > ARCMSR_MAX_SG_ENTRIES) {
2673 		pccb->ccb_h.status |= CAM_REQ_TOO_BIG;
2674 		arcmsr_srb_complete(srb, 0);
2675 		return;
2676 	}
2677 	if(acb->acb_flags & ACB_F_BUS_RESET) {
2678 		printf("arcmsr%d: bus reset and return busy \n", acb->pci_unit);
2679 		pccb->ccb_h.status |= CAM_SCSI_BUS_RESET;
2680 		arcmsr_srb_complete(srb, 0);
2681 		return;
2682 	}
2683 	if(acb->devstate[target][lun] == ARECA_RAID_GONE) {
2684 		u_int8_t block_cmd, cmd;
2685 
2686 		cmd = pccb->csio.cdb_io.cdb_bytes[0];
2687 		block_cmd = cmd & 0x0f;
2688 		if(block_cmd == 0x08 || block_cmd == 0x0a) {
2689 			printf("arcmsr%d:block 'read/write' command "
2690 				"with gone raid volume Cmd=0x%2x, TargetId=%d, Lun=%d \n"
2691 				, acb->pci_unit, cmd, target, lun);
2692 			pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
2693 			arcmsr_srb_complete(srb, 0);
2694 			return;
2695 		}
2696 	}
2697 	if((pccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
2698 		if(nseg != 0) {
2699 			bus_dmamap_unload(acb->dm_segs_dmat, srb->dm_segs_dmamap);
2700 		}
2701 		arcmsr_srb_complete(srb, 0);
2702 		return;
2703 	}
2704 	if(acb->srboutstandingcount >= acb->maxOutstanding) {
2705 		if((acb->acb_flags & ACB_F_CAM_DEV_QFRZN) == 0)
2706 		{
2707 			xpt_freeze_simq(acb->psim, 1);
2708 			acb->acb_flags |= ACB_F_CAM_DEV_QFRZN;
2709 		}
2710 		pccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2711 		pccb->ccb_h.status |= CAM_REQUEUE_REQ;
2712 		arcmsr_srb_complete(srb, 0);
2713 		return;
2714 	}
2715 	pccb->ccb_h.status |= CAM_SIM_QUEUED;
2716 	arcmsr_build_srb(srb, dm_segs, nseg);
2717 	arcmsr_post_srb(acb, srb);
2718 	if (pccb->ccb_h.timeout != CAM_TIME_INFINITY)
2719 	{
2720 		arcmsr_callout_init(&srb->ccb_callout);
2721 		callout_reset_sbt(&srb->ccb_callout, SBT_1MS *
2722 		    (pccb->ccb_h.timeout + (ARCMSR_TIMEOUT_DELAY * 1000)), 0,
2723 		    arcmsr_srb_timeout, srb, 0);
2724 		srb->srb_flags |= SRB_FLAG_TIMER_START;
2725 	}
2726 }
2727 /*
2728 *****************************************************************************************
2729 *****************************************************************************************
2730 */
2731 static u_int8_t arcmsr_seek_cmd2abort(union ccb *abortccb)
2732 {
2733 	struct CommandControlBlock *srb;
2734 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *) abortccb->ccb_h.arcmsr_ccbacb_ptr;
2735 	u_int32_t intmask_org;
2736 	int i = 0;
2737 
2738 	acb->num_aborts++;
2739 	/*
2740 	***************************************************************************
2741 	** It is the upper layer do abort command this lock just prior to calling us.
2742 	** First determine if we currently own this command.
2743 	** Start by searching the device queue. If not found
2744 	** at all, and the system wanted us to just abort the
2745 	** command return success.
2746 	***************************************************************************
2747 	*/
2748 	if(acb->srboutstandingcount != 0) {
2749 		/* disable all outbound interrupt */
2750 		intmask_org = arcmsr_disable_allintr(acb);
2751 		for(i=0; i < ARCMSR_MAX_FREESRB_NUM; i++) {
2752 			srb = acb->psrb_pool[i];
2753 			if(srb->srb_state == ARCMSR_SRB_START) {
2754 				if(srb->pccb == abortccb) {
2755 					srb->srb_state = ARCMSR_SRB_ABORTED;
2756 					printf("arcmsr%d:scsi id=%d lun=%jx abort srb '%p'"
2757 						"outstanding command \n"
2758 						, acb->pci_unit, abortccb->ccb_h.target_id
2759 						, (uintmax_t)abortccb->ccb_h.target_lun, srb);
2760 					arcmsr_polling_srbdone(acb, srb);
2761 					/* enable outbound Post Queue, outbound doorbell Interrupt */
2762 					arcmsr_enable_allintr(acb, intmask_org);
2763 					return (TRUE);
2764 				}
2765 			}
2766 		}
2767 		/* enable outbound Post Queue, outbound doorbell Interrupt */
2768 		arcmsr_enable_allintr(acb, intmask_org);
2769 	}
2770 	return(FALSE);
2771 }
2772 /*
2773 ****************************************************************************
2774 ****************************************************************************
2775 */
2776 static void arcmsr_bus_reset(struct AdapterControlBlock *acb)
2777 {
2778 	int retry = 0;
2779 
2780 	acb->num_resets++;
2781 	acb->acb_flags |= ACB_F_BUS_RESET;
2782 	while(acb->srboutstandingcount != 0 && retry < 400) {
2783 		arcmsr_interrupt(acb);
2784 		UDELAY(25000);
2785 		retry++;
2786 	}
2787 	arcmsr_iop_reset(acb);
2788 	acb->acb_flags &= ~ACB_F_BUS_RESET;
2789 }
2790 /*
2791 **************************************************************************
2792 **************************************************************************
2793 */
2794 static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb,
2795 		union ccb *pccb)
2796 {
2797 	if (pccb->ccb_h.target_lun) {
2798 		pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
2799 		xpt_done(pccb);
2800 		return;
2801 	}
2802 	pccb->ccb_h.status |= CAM_REQ_CMP;
2803 	switch (pccb->csio.cdb_io.cdb_bytes[0]) {
2804 	case INQUIRY: {
2805 		unsigned char inqdata[36];
2806 		char *buffer = pccb->csio.data_ptr;
2807 
2808 		inqdata[0] = T_PROCESSOR;	/* Periph Qualifier & Periph Dev Type */
2809 		inqdata[1] = 0;			/* rem media bit & Dev Type Modifier */
2810 		inqdata[2] = 0;			/* ISO, ECMA, & ANSI versions */
2811 		inqdata[3] = 0;
2812 		inqdata[4] = 31;		/* length of additional data */
2813 		inqdata[5] = 0;
2814 		inqdata[6] = 0;
2815 		inqdata[7] = 0;
2816 		strncpy(&inqdata[8], "Areca   ", 8);	/* Vendor Identification */
2817 		strncpy(&inqdata[16], "RAID controller ", 16);	/* Product Identification */
2818 		strncpy(&inqdata[32], "R001", 4); /* Product Revision */
2819 		memcpy(buffer, inqdata, sizeof(inqdata));
2820 		xpt_done(pccb);
2821 	}
2822 	break;
2823 	case WRITE_BUFFER:
2824 	case READ_BUFFER: {
2825 		if (arcmsr_iop_message_xfer(acb, pccb)) {
2826 			pccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
2827 			pccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
2828 		}
2829 		xpt_done(pccb);
2830 	}
2831 	break;
2832 	default:
2833 		xpt_done(pccb);
2834 	}
2835 }
2836 /*
2837 *********************************************************************
2838 *********************************************************************
2839 */
2840 static void arcmsr_action(struct cam_sim *psim, union ccb *pccb)
2841 {
2842 	struct AdapterControlBlock *acb;
2843 
2844 	acb = (struct AdapterControlBlock *) cam_sim_softc(psim);
2845 	if(acb == NULL) {
2846 		pccb->ccb_h.status |= CAM_REQ_INVALID;
2847 		xpt_done(pccb);
2848 		return;
2849 	}
2850 	switch (pccb->ccb_h.func_code) {
2851 	case XPT_SCSI_IO: {
2852 			struct CommandControlBlock *srb;
2853 			int target = pccb->ccb_h.target_id;
2854 			int error;
2855 
2856 			if(target == 16) {
2857 				/* virtual device for iop message transfer */
2858 				arcmsr_handle_virtual_command(acb, pccb);
2859 				return;
2860 			}
2861 			if((srb = arcmsr_get_freesrb(acb)) == NULL) {
2862 				pccb->ccb_h.status |= CAM_RESRC_UNAVAIL;
2863 				xpt_done(pccb);
2864 				return;
2865 			}
2866 			pccb->ccb_h.arcmsr_ccbsrb_ptr = srb;
2867 			pccb->ccb_h.arcmsr_ccbacb_ptr = acb;
2868 			srb->pccb = pccb;
2869 			error =	bus_dmamap_load_ccb(acb->dm_segs_dmat
2870 				, srb->dm_segs_dmamap
2871 				, pccb
2872 				, arcmsr_execute_srb, srb, /*flags*/0);
2873 			if(error == EINPROGRESS) {
2874 				xpt_freeze_simq(acb->psim, 1);
2875 				pccb->ccb_h.status |= CAM_RELEASE_SIMQ;
2876 			}
2877 			break;
2878 		}
2879 	case XPT_TARGET_IO: {
2880 			/* target mode not yet support vendor specific commands. */
2881 			pccb->ccb_h.status |= CAM_REQ_CMP;
2882 			xpt_done(pccb);
2883 			break;
2884 		}
2885 	case XPT_PATH_INQ: {
2886 			struct ccb_pathinq *cpi = &pccb->cpi;
2887 
2888 			cpi->version_num = 1;
2889 			cpi->hba_inquiry = PI_SDTR_ABLE | PI_TAG_ABLE;
2890 			cpi->target_sprt = 0;
2891 			cpi->hba_misc = 0;
2892 			cpi->hba_eng_cnt = 0;
2893 			cpi->max_target = ARCMSR_MAX_TARGETID;        /* 0-16 */
2894 			cpi->max_lun = ARCMSR_MAX_TARGETLUN;	    /* 0-7 */
2895 			cpi->initiator_id = ARCMSR_SCSI_INITIATOR_ID; /* 255 */
2896 			cpi->bus_id = cam_sim_bus(psim);
2897 			strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2898 			strncpy(cpi->hba_vid, "ARCMSR", HBA_IDLEN);
2899 			strncpy(cpi->dev_name, cam_sim_name(psim), DEV_IDLEN);
2900 			cpi->unit_number = cam_sim_unit(psim);
2901 		#ifdef	CAM_NEW_TRAN_CODE
2902 			if(acb->adapter_bus_speed == ACB_BUS_SPEED_12G)
2903 				cpi->base_transfer_speed = 1200000;
2904 			else if(acb->adapter_bus_speed == ACB_BUS_SPEED_6G)
2905 				cpi->base_transfer_speed = 600000;
2906 			else
2907 				cpi->base_transfer_speed = 300000;
2908 			if((acb->vendor_device_id == PCIDevVenIDARC1880) ||
2909 			   (acb->vendor_device_id == PCIDevVenIDARC1680) ||
2910 			   (acb->vendor_device_id == PCIDevVenIDARC1214))
2911 			{
2912 				cpi->transport = XPORT_SAS;
2913 				cpi->transport_version = 0;
2914 				cpi->protocol_version = SCSI_REV_SPC2;
2915 			}
2916 			else
2917 			{
2918 				cpi->transport = XPORT_SPI;
2919 				cpi->transport_version = 2;
2920 				cpi->protocol_version = SCSI_REV_2;
2921 			}
2922 			cpi->protocol = PROTO_SCSI;
2923 		#endif
2924 			cpi->ccb_h.status |= CAM_REQ_CMP;
2925 			xpt_done(pccb);
2926 			break;
2927 		}
2928 	case XPT_ABORT: {
2929 			union ccb *pabort_ccb;
2930 
2931 			pabort_ccb = pccb->cab.abort_ccb;
2932 			switch (pabort_ccb->ccb_h.func_code) {
2933 			case XPT_ACCEPT_TARGET_IO:
2934 			case XPT_IMMED_NOTIFY:
2935 			case XPT_CONT_TARGET_IO:
2936 				if(arcmsr_seek_cmd2abort(pabort_ccb)==TRUE) {
2937 					pabort_ccb->ccb_h.status |= CAM_REQ_ABORTED;
2938 					xpt_done(pabort_ccb);
2939 					pccb->ccb_h.status |= CAM_REQ_CMP;
2940 				} else {
2941 					xpt_print_path(pabort_ccb->ccb_h.path);
2942 					printf("Not found\n");
2943 					pccb->ccb_h.status |= CAM_PATH_INVALID;
2944 				}
2945 				break;
2946 			case XPT_SCSI_IO:
2947 				pccb->ccb_h.status |= CAM_UA_ABORT;
2948 				break;
2949 			default:
2950 				pccb->ccb_h.status |= CAM_REQ_INVALID;
2951 				break;
2952 			}
2953 			xpt_done(pccb);
2954 			break;
2955 		}
2956 	case XPT_RESET_BUS:
2957 	case XPT_RESET_DEV: {
2958 			u_int32_t	i;
2959 
2960 			arcmsr_bus_reset(acb);
2961 			for (i=0; i < 500; i++) {
2962 				DELAY(1000);
2963 			}
2964 			pccb->ccb_h.status |= CAM_REQ_CMP;
2965 			xpt_done(pccb);
2966 			break;
2967 		}
2968 	case XPT_TERM_IO: {
2969 			pccb->ccb_h.status |= CAM_REQ_INVALID;
2970 			xpt_done(pccb);
2971 			break;
2972 		}
2973 	case XPT_GET_TRAN_SETTINGS: {
2974 			struct ccb_trans_settings *cts;
2975 
2976 			if(pccb->ccb_h.target_id == 16) {
2977 				pccb->ccb_h.status |= CAM_FUNC_NOTAVAIL;
2978 				xpt_done(pccb);
2979 				break;
2980 			}
2981 			cts = &pccb->cts;
2982 		#ifdef	CAM_NEW_TRAN_CODE
2983 			{
2984 				struct ccb_trans_settings_scsi *scsi;
2985 				struct ccb_trans_settings_spi *spi;
2986 				struct ccb_trans_settings_sas *sas;
2987 
2988 				scsi = &cts->proto_specific.scsi;
2989 				scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
2990 				scsi->valid = CTS_SCSI_VALID_TQ;
2991 				cts->protocol = PROTO_SCSI;
2992 
2993 				if((acb->vendor_device_id == PCIDevVenIDARC1880) ||
2994 				   (acb->vendor_device_id == PCIDevVenIDARC1680) ||
2995 				   (acb->vendor_device_id == PCIDevVenIDARC1214))
2996 				{
2997 					cts->protocol_version = SCSI_REV_SPC2;
2998 					cts->transport_version = 0;
2999 					cts->transport = XPORT_SAS;
3000 					sas = &cts->xport_specific.sas;
3001 					sas->valid = CTS_SAS_VALID_SPEED;
3002 					if (acb->adapter_bus_speed == ACB_BUS_SPEED_12G)
3003 						sas->bitrate = 1200000;
3004 					else if(acb->adapter_bus_speed == ACB_BUS_SPEED_6G)
3005 						sas->bitrate = 600000;
3006 					else if(acb->adapter_bus_speed == ACB_BUS_SPEED_3G)
3007 						sas->bitrate = 300000;
3008 				}
3009 				else
3010 				{
3011 					cts->protocol_version = SCSI_REV_2;
3012 					cts->transport_version = 2;
3013 					cts->transport = XPORT_SPI;
3014 					spi = &cts->xport_specific.spi;
3015 					spi->flags = CTS_SPI_FLAGS_DISC_ENB;
3016 					if (acb->adapter_bus_speed == ACB_BUS_SPEED_6G)
3017 						spi->sync_period = 1;
3018 					else
3019 						spi->sync_period = 2;
3020 					spi->sync_offset = 32;
3021 					spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3022 					spi->valid = CTS_SPI_VALID_DISC
3023 						| CTS_SPI_VALID_SYNC_RATE
3024 						| CTS_SPI_VALID_SYNC_OFFSET
3025 						| CTS_SPI_VALID_BUS_WIDTH;
3026 				}
3027 			}
3028 		#else
3029 			{
3030 				cts->flags = (CCB_TRANS_DISC_ENB | CCB_TRANS_TAG_ENB);
3031 				if (acb->adapter_bus_speed == ACB_BUS_SPEED_6G)
3032 					cts->sync_period = 1;
3033 				else
3034 					cts->sync_period = 2;
3035 				cts->sync_offset = 32;
3036 				cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3037 				cts->valid = CCB_TRANS_SYNC_RATE_VALID |
3038 				CCB_TRANS_SYNC_OFFSET_VALID |
3039 				CCB_TRANS_BUS_WIDTH_VALID |
3040 				CCB_TRANS_DISC_VALID |
3041 				CCB_TRANS_TQ_VALID;
3042 			}
3043 		#endif
3044 			pccb->ccb_h.status |= CAM_REQ_CMP;
3045 			xpt_done(pccb);
3046 			break;
3047 		}
3048 	case XPT_SET_TRAN_SETTINGS: {
3049 			pccb->ccb_h.status |= CAM_FUNC_NOTAVAIL;
3050 			xpt_done(pccb);
3051 			break;
3052 		}
3053 	case XPT_CALC_GEOMETRY:
3054 			if(pccb->ccb_h.target_id == 16) {
3055 				pccb->ccb_h.status |= CAM_FUNC_NOTAVAIL;
3056 				xpt_done(pccb);
3057 				break;
3058 			}
3059 #if __FreeBSD_version >= 500000
3060 			cam_calc_geometry(&pccb->ccg, 1);
3061 #else
3062 			{
3063 			struct ccb_calc_geometry *ccg;
3064 			u_int32_t size_mb;
3065 			u_int32_t secs_per_cylinder;
3066 
3067 			ccg = &pccb->ccg;
3068 			if (ccg->block_size == 0) {
3069 				pccb->ccb_h.status = CAM_REQ_INVALID;
3070 				xpt_done(pccb);
3071 				break;
3072 			}
3073 			if(((1024L * 1024L)/ccg->block_size) < 0) {
3074 				pccb->ccb_h.status = CAM_REQ_INVALID;
3075 				xpt_done(pccb);
3076 				break;
3077 			}
3078 			size_mb = ccg->volume_size/((1024L * 1024L)/ccg->block_size);
3079 			if(size_mb > 1024 ) {
3080 				ccg->heads = 255;
3081 				ccg->secs_per_track = 63;
3082 			} else {
3083 				ccg->heads = 64;
3084 				ccg->secs_per_track = 32;
3085 			}
3086 			secs_per_cylinder = ccg->heads * ccg->secs_per_track;
3087 			ccg->cylinders = ccg->volume_size / secs_per_cylinder;
3088 			pccb->ccb_h.status |= CAM_REQ_CMP;
3089 			}
3090 #endif
3091 			xpt_done(pccb);
3092 			break;
3093 	default:
3094 		pccb->ccb_h.status |= CAM_REQ_INVALID;
3095 		xpt_done(pccb);
3096 		break;
3097 	}
3098 }
3099 /*
3100 **********************************************************************
3101 **********************************************************************
3102 */
3103 static void arcmsr_start_hba_bgrb(struct AdapterControlBlock *acb)
3104 {
3105 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3106 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_START_BGRB);
3107 	if(!arcmsr_hba_wait_msgint_ready(acb)) {
3108 		printf("arcmsr%d: wait 'start adapter background rebulid' timeout \n", acb->pci_unit);
3109 	}
3110 }
3111 /*
3112 **********************************************************************
3113 **********************************************************************
3114 */
3115 static void arcmsr_start_hbb_bgrb(struct AdapterControlBlock *acb)
3116 {
3117 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
3118 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3119 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_START_BGRB);
3120 	if(!arcmsr_hbb_wait_msgint_ready(acb)) {
3121 		printf( "arcmsr%d: wait 'start adapter background rebulid' timeout \n", acb->pci_unit);
3122 	}
3123 }
3124 /*
3125 **********************************************************************
3126 **********************************************************************
3127 */
3128 static void arcmsr_start_hbc_bgrb(struct AdapterControlBlock *acb)
3129 {
3130 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3131 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_START_BGRB);
3132 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
3133 	if(!arcmsr_hbc_wait_msgint_ready(acb)) {
3134 		printf("arcmsr%d: wait 'start adapter background rebulid' timeout \n", acb->pci_unit);
3135 	}
3136 }
3137 /*
3138 **********************************************************************
3139 **********************************************************************
3140 */
3141 static void arcmsr_start_hbd_bgrb(struct AdapterControlBlock *acb)
3142 {
3143 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3144 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_START_BGRB);
3145 	if(!arcmsr_hbd_wait_msgint_ready(acb)) {
3146 		printf("arcmsr%d: wait 'start adapter background rebulid' timeout \n", acb->pci_unit);
3147 	}
3148 }
3149 /*
3150 **********************************************************************
3151 **********************************************************************
3152 */
3153 static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb)
3154 {
3155 	switch (acb->adapter_type) {
3156 	case ACB_ADAPTER_TYPE_A:
3157 		arcmsr_start_hba_bgrb(acb);
3158 		break;
3159 	case ACB_ADAPTER_TYPE_B:
3160 		arcmsr_start_hbb_bgrb(acb);
3161 		break;
3162 	case ACB_ADAPTER_TYPE_C:
3163 		arcmsr_start_hbc_bgrb(acb);
3164 		break;
3165 	case ACB_ADAPTER_TYPE_D:
3166 		arcmsr_start_hbd_bgrb(acb);
3167 		break;
3168 	}
3169 }
3170 /*
3171 **********************************************************************
3172 **
3173 **********************************************************************
3174 */
3175 static void arcmsr_polling_hba_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
3176 {
3177 	struct CommandControlBlock *srb;
3178 	u_int32_t flag_srb, outbound_intstatus, poll_srb_done=0, poll_count=0;
3179 	u_int16_t	error;
3180 
3181 polling_ccb_retry:
3182 	poll_count++;
3183 	outbound_intstatus=CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intstatus) & acb->outbound_int_enable;
3184 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, outbound_intstatus);	/*clear interrupt*/
3185 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
3186 	while(1) {
3187 		if((flag_srb = CHIP_REG_READ32(HBA_MessageUnit,
3188 			0, outbound_queueport)) == 0xFFFFFFFF) {
3189 			if(poll_srb_done) {
3190 				break;/*chip FIFO no ccb for completion already*/
3191 			} else {
3192 				UDELAY(25000);
3193 				if ((poll_count > 100) && (poll_srb != NULL)) {
3194 					break;
3195 				}
3196 				goto polling_ccb_retry;
3197 			}
3198 		}
3199 		/* check if command done with no error*/
3200 		srb = (struct CommandControlBlock *)
3201 			(acb->vir2phy_offset+(flag_srb << 5));/*frame must be 32 bytes aligned*/
3202 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0)?TRUE:FALSE;
3203 		poll_srb_done = (srb == poll_srb) ? 1:0;
3204 		if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
3205 			if(srb->srb_state == ARCMSR_SRB_ABORTED) {
3206 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p'"
3207 					"poll command abort successfully \n"
3208 					, acb->pci_unit
3209 					, srb->pccb->ccb_h.target_id
3210 					, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
3211 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
3212 				arcmsr_srb_complete(srb, 1);
3213 				continue;
3214 			}
3215 			printf("arcmsr%d: polling get an illegal srb command done srb='%p'"
3216 				"srboutstandingcount=%d \n"
3217 				, acb->pci_unit
3218 				, srb, acb->srboutstandingcount);
3219 			continue;
3220 		}
3221 		arcmsr_report_srb_state(acb, srb, error);
3222 	}	/*drain reply FIFO*/
3223 }
3224 /*
3225 **********************************************************************
3226 **
3227 **********************************************************************
3228 */
3229 static void arcmsr_polling_hbb_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
3230 {
3231 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
3232 	struct CommandControlBlock *srb;
3233 	u_int32_t flag_srb, poll_srb_done=0, poll_count=0;
3234 	int index;
3235 	u_int16_t	error;
3236 
3237 polling_ccb_retry:
3238 	poll_count++;
3239 	WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_DOORBELL_INT_CLEAR_PATTERN); /* clear doorbell interrupt */
3240 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
3241 	while(1) {
3242 		index = phbbmu->doneq_index;
3243 		if((flag_srb = phbbmu->done_qbuffer[index]) == 0) {
3244 			if(poll_srb_done) {
3245 				break;/*chip FIFO no ccb for completion already*/
3246 			} else {
3247 				UDELAY(25000);
3248 				if ((poll_count > 100) && (poll_srb != NULL)) {
3249 					break;
3250 				}
3251 				goto polling_ccb_retry;
3252 			}
3253 		}
3254 		phbbmu->done_qbuffer[index] = 0;
3255 		index++;
3256 		index %= ARCMSR_MAX_HBB_POSTQUEUE;     /*if last index number set it to 0 */
3257 		phbbmu->doneq_index = index;
3258 		/* check if command done with no error*/
3259 		srb = (struct CommandControlBlock *)
3260 			(acb->vir2phy_offset+(flag_srb << 5));/*frame must be 32 bytes aligned*/
3261 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0)?TRUE:FALSE;
3262 		poll_srb_done = (srb == poll_srb) ? 1:0;
3263 		if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
3264 			if(srb->srb_state == ARCMSR_SRB_ABORTED) {
3265 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p'"
3266 					"poll command abort successfully \n"
3267 					, acb->pci_unit
3268 					, srb->pccb->ccb_h.target_id
3269 					, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
3270 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
3271 				arcmsr_srb_complete(srb, 1);
3272 				continue;
3273 			}
3274 			printf("arcmsr%d: polling get an illegal srb command done srb='%p'"
3275 				"srboutstandingcount=%d \n"
3276 				, acb->pci_unit
3277 				, srb, acb->srboutstandingcount);
3278 			continue;
3279 		}
3280 		arcmsr_report_srb_state(acb, srb, error);
3281 	}	/*drain reply FIFO*/
3282 }
3283 /*
3284 **********************************************************************
3285 **
3286 **********************************************************************
3287 */
3288 static void arcmsr_polling_hbc_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
3289 {
3290 	struct CommandControlBlock *srb;
3291 	u_int32_t flag_srb, poll_srb_done=0, poll_count=0;
3292 	u_int16_t	error;
3293 
3294 polling_ccb_retry:
3295 	poll_count++;
3296 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
3297 	while(1) {
3298 		if(!(CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR)) {
3299 			if(poll_srb_done) {
3300 				break;/*chip FIFO no ccb for completion already*/
3301 			} else {
3302 				UDELAY(25000);
3303 				if ((poll_count > 100) && (poll_srb != NULL)) {
3304 					break;
3305 				}
3306 				if (acb->srboutstandingcount == 0) {
3307 				    break;
3308 				}
3309 				goto polling_ccb_retry;
3310 			}
3311 		}
3312 		flag_srb = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_queueport_low);
3313 		/* check if command done with no error*/
3314 		srb = (struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb & 0xFFFFFFE0));/*frame must be 32 bytes aligned*/
3315 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1)?TRUE:FALSE;
3316 		if (poll_srb != NULL)
3317 			poll_srb_done = (srb == poll_srb) ? 1:0;
3318 		if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
3319 			if(srb->srb_state == ARCMSR_SRB_ABORTED) {
3320 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p'poll command abort successfully \n"
3321 						, acb->pci_unit, srb->pccb->ccb_h.target_id, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
3322 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
3323 				arcmsr_srb_complete(srb, 1);
3324 				continue;
3325 			}
3326 			printf("arcmsr%d: polling get an illegal srb command done srb='%p'srboutstandingcount=%d \n"
3327 					, acb->pci_unit, srb, acb->srboutstandingcount);
3328 			continue;
3329 		}
3330 		arcmsr_report_srb_state(acb, srb, error);
3331 	}	/*drain reply FIFO*/
3332 }
3333 /*
3334 **********************************************************************
3335 **
3336 **********************************************************************
3337 */
3338 static void arcmsr_polling_hbd_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
3339 {
3340 	struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
3341 	struct CommandControlBlock *srb;
3342 	u_int32_t flag_srb, poll_srb_done=0, poll_count=0;
3343 	u_int32_t outbound_write_pointer;
3344 	u_int16_t	error, doneq_index;
3345 
3346 polling_ccb_retry:
3347 	poll_count++;
3348 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
3349 	while(1) {
3350 		outbound_write_pointer = phbdmu->done_qbuffer[0].addressLow;
3351 		doneq_index = phbdmu->doneq_index;
3352 		if ((outbound_write_pointer & 0xFF) == (doneq_index & 0xFF)) {
3353 			if(poll_srb_done) {
3354 				break;/*chip FIFO no ccb for completion already*/
3355 			} else {
3356 				UDELAY(25000);
3357 				if ((poll_count > 100) && (poll_srb != NULL)) {
3358 					break;
3359 				}
3360 				if (acb->srboutstandingcount == 0) {
3361 					break;
3362 				}
3363 				goto polling_ccb_retry;
3364 			}
3365 		}
3366 		doneq_index = arcmsr_get_doneq_index(phbdmu);
3367 		flag_srb = phbdmu->done_qbuffer[(doneq_index & 0xFF)+1].addressLow;
3368 		/* check if command done with no error*/
3369 		srb = (struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb & 0xFFFFFFE0));/*frame must be 32 bytes aligned*/
3370 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1) ? TRUE : FALSE;
3371 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, outboundlist_read_pointer, doneq_index);
3372 		if (poll_srb != NULL)
3373 			poll_srb_done = (srb == poll_srb) ? 1:0;
3374 		if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
3375 			if(srb->srb_state == ARCMSR_SRB_ABORTED) {
3376 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p'poll command abort successfully \n"
3377 						, acb->pci_unit, srb->pccb->ccb_h.target_id, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
3378 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
3379 				arcmsr_srb_complete(srb, 1);
3380 				continue;
3381 			}
3382 			printf("arcmsr%d: polling get an illegal srb command done srb='%p'srboutstandingcount=%d \n"
3383 					, acb->pci_unit, srb, acb->srboutstandingcount);
3384 			continue;
3385 		}
3386 		arcmsr_report_srb_state(acb, srb, error);
3387 	}	/*drain reply FIFO*/
3388 }
3389 /*
3390 **********************************************************************
3391 **********************************************************************
3392 */
3393 static void arcmsr_polling_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
3394 {
3395 	switch (acb->adapter_type) {
3396 	case ACB_ADAPTER_TYPE_A: {
3397 			arcmsr_polling_hba_srbdone(acb, poll_srb);
3398 		}
3399 		break;
3400 	case ACB_ADAPTER_TYPE_B: {
3401 			arcmsr_polling_hbb_srbdone(acb, poll_srb);
3402 		}
3403 		break;
3404 	case ACB_ADAPTER_TYPE_C: {
3405 			arcmsr_polling_hbc_srbdone(acb, poll_srb);
3406 		}
3407 		break;
3408 	case ACB_ADAPTER_TYPE_D: {
3409 			arcmsr_polling_hbd_srbdone(acb, poll_srb);
3410 		}
3411 		break;
3412 	}
3413 }
3414 /*
3415 **********************************************************************
3416 **********************************************************************
3417 */
3418 static void arcmsr_get_hba_config(struct AdapterControlBlock *acb)
3419 {
3420 	char *acb_firm_model = acb->firm_model;
3421 	char *acb_firm_version = acb->firm_version;
3422 	char *acb_device_map = acb->device_map;
3423 	size_t iop_firm_model = offsetof(struct HBA_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);	/*firm_model,15,60-67*/
3424 	size_t iop_firm_version = offsetof(struct HBA_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]);	/*firm_version,17,68-83*/
3425 	size_t iop_device_map = offsetof(struct HBA_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3426 	int i;
3427 
3428 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
3429 	if(!arcmsr_hba_wait_msgint_ready(acb)) {
3430 		printf("arcmsr%d: wait 'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3431 	}
3432 	i = 0;
3433 	while(i < 8) {
3434 		*acb_firm_model = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_model+i);
3435 		/* 8 bytes firm_model, 15, 60-67*/
3436 		acb_firm_model++;
3437 		i++;
3438 	}
3439 	i=0;
3440 	while(i < 16) {
3441 		*acb_firm_version = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_version+i);
3442 		/* 16 bytes firm_version, 17, 68-83*/
3443 		acb_firm_version++;
3444 		i++;
3445 	}
3446 	i=0;
3447 	while(i < 16) {
3448 		*acb_device_map = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_device_map+i);
3449 		acb_device_map++;
3450 		i++;
3451 	}
3452 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3453 	acb->firm_request_len = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[1]);   /*firm_request_len, 1, 04-07*/
3454 	acb->firm_numbers_queue = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[2]); /*firm_numbers_queue, 2, 08-11*/
3455 	acb->firm_sdram_size = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[3]);    /*firm_sdram_size, 3, 12-15*/
3456 	acb->firm_ide_channels = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[4]);  /*firm_ide_channels, 4, 16-19*/
3457 	acb->firm_cfg_version = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
3458 	if(acb->firm_numbers_queue > ARCMSR_MAX_OUTSTANDING_CMD)
3459 		acb->maxOutstanding = ARCMSR_MAX_OUTSTANDING_CMD - 1;
3460 	else
3461 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
3462 }
3463 /*
3464 **********************************************************************
3465 **********************************************************************
3466 */
3467 static void arcmsr_get_hbb_config(struct AdapterControlBlock *acb)
3468 {
3469 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
3470 	char *acb_firm_model = acb->firm_model;
3471 	char *acb_firm_version = acb->firm_version;
3472 	char *acb_device_map = acb->device_map;
3473 	size_t iop_firm_model = offsetof(struct HBB_RWBUFFER, msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);	/*firm_model,15,60-67*/
3474 	size_t iop_firm_version = offsetof(struct HBB_RWBUFFER, msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]);	/*firm_version,17,68-83*/
3475 	size_t iop_device_map = offsetof(struct HBB_RWBUFFER, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3476 	int i;
3477 
3478 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_GET_CONFIG);
3479 	if(!arcmsr_hbb_wait_msgint_ready(acb)) {
3480 		printf( "arcmsr%d: wait" "'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3481 	}
3482 	i = 0;
3483 	while(i < 8) {
3484 		*acb_firm_model = bus_space_read_1(acb->btag[1], acb->bhandle[1], iop_firm_model+i);
3485 		/* 8 bytes firm_model, 15, 60-67*/
3486 		acb_firm_model++;
3487 		i++;
3488 	}
3489 	i = 0;
3490 	while(i < 16) {
3491 		*acb_firm_version = bus_space_read_1(acb->btag[1], acb->bhandle[1], iop_firm_version+i);
3492 		/* 16 bytes firm_version, 17, 68-83*/
3493 		acb_firm_version++;
3494 		i++;
3495 	}
3496 	i = 0;
3497 	while(i < 16) {
3498 		*acb_device_map = bus_space_read_1(acb->btag[1], acb->bhandle[1], iop_device_map+i);
3499 		acb_device_map++;
3500 		i++;
3501 	}
3502 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3503 	acb->firm_request_len = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[1]);   /*firm_request_len, 1, 04-07*/
3504 	acb->firm_numbers_queue = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[2]); /*firm_numbers_queue, 2, 08-11*/
3505 	acb->firm_sdram_size = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[3]);    /*firm_sdram_size, 3, 12-15*/
3506 	acb->firm_ide_channels = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[4]);  /*firm_ide_channels, 4, 16-19*/
3507 	acb->firm_cfg_version = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
3508 	if(acb->firm_numbers_queue > ARCMSR_MAX_HBB_POSTQUEUE)
3509 		acb->maxOutstanding = ARCMSR_MAX_HBB_POSTQUEUE - 1;
3510 	else
3511 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
3512 }
3513 /*
3514 **********************************************************************
3515 **********************************************************************
3516 */
3517 static void arcmsr_get_hbc_config(struct AdapterControlBlock *acb)
3518 {
3519 	char *acb_firm_model = acb->firm_model;
3520 	char *acb_firm_version = acb->firm_version;
3521 	char *acb_device_map = acb->device_map;
3522 	size_t iop_firm_model = offsetof(struct HBC_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);   /*firm_model,15,60-67*/
3523 	size_t iop_firm_version = offsetof(struct HBC_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]); /*firm_version,17,68-83*/
3524 	size_t iop_device_map = offsetof(struct HBC_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3525 	int i;
3526 
3527 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
3528 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
3529 	if(!arcmsr_hbc_wait_msgint_ready(acb)) {
3530 		printf("arcmsr%d: wait 'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3531 	}
3532 	i = 0;
3533 	while(i < 8) {
3534 		*acb_firm_model = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_model+i);
3535 		/* 8 bytes firm_model, 15, 60-67*/
3536 		acb_firm_model++;
3537 		i++;
3538 	}
3539 	i = 0;
3540 	while(i < 16) {
3541 		*acb_firm_version = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_version+i);
3542 		/* 16 bytes firm_version, 17, 68-83*/
3543 		acb_firm_version++;
3544 		i++;
3545 	}
3546 	i = 0;
3547 	while(i < 16) {
3548 		*acb_device_map = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_device_map+i);
3549 		acb_device_map++;
3550 		i++;
3551 	}
3552 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3553 	acb->firm_request_len	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[1]);	/*firm_request_len,   1, 04-07*/
3554 	acb->firm_numbers_queue	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[2]);	/*firm_numbers_queue, 2, 08-11*/
3555 	acb->firm_sdram_size	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[3]);	/*firm_sdram_size,    3, 12-15*/
3556 	acb->firm_ide_channels	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[4]);	/*firm_ide_channels,  4, 16-19*/
3557 	acb->firm_cfg_version	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
3558 	if(acb->firm_numbers_queue > ARCMSR_MAX_OUTSTANDING_CMD)
3559 		acb->maxOutstanding = ARCMSR_MAX_OUTSTANDING_CMD - 1;
3560 	else
3561 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
3562 }
3563 /*
3564 **********************************************************************
3565 **********************************************************************
3566 */
3567 static void arcmsr_get_hbd_config(struct AdapterControlBlock *acb)
3568 {
3569 	char *acb_firm_model = acb->firm_model;
3570 	char *acb_firm_version = acb->firm_version;
3571 	char *acb_device_map = acb->device_map;
3572 	size_t iop_firm_model = offsetof(struct HBD_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);   /*firm_model,15,60-67*/
3573 	size_t iop_firm_version = offsetof(struct HBD_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]); /*firm_version,17,68-83*/
3574 	size_t iop_device_map = offsetof(struct HBD_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3575 	int i;
3576 
3577 	if(CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE)
3578 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE_CLEAR);
3579 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
3580 	if(!arcmsr_hbd_wait_msgint_ready(acb)) {
3581 		printf("arcmsr%d: wait 'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3582 	}
3583 	i = 0;
3584 	while(i < 8) {
3585 		*acb_firm_model = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_model+i);
3586 		/* 8 bytes firm_model, 15, 60-67*/
3587 		acb_firm_model++;
3588 		i++;
3589 	}
3590 	i = 0;
3591 	while(i < 16) {
3592 		*acb_firm_version = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_version+i);
3593 		/* 16 bytes firm_version, 17, 68-83*/
3594 		acb_firm_version++;
3595 		i++;
3596 	}
3597 	i = 0;
3598 	while(i < 16) {
3599 		*acb_device_map = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_device_map+i);
3600 		acb_device_map++;
3601 		i++;
3602 	}
3603 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3604 	acb->firm_request_len	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[1]);	/*firm_request_len,   1, 04-07*/
3605 	acb->firm_numbers_queue	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[2]);	/*firm_numbers_queue, 2, 08-11*/
3606 	acb->firm_sdram_size	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[3]);	/*firm_sdram_size,    3, 12-15*/
3607 	acb->firm_ide_channels	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[4]);	/*firm_ide_channels,  4, 16-19*/
3608 	acb->firm_cfg_version	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
3609 	if(acb->firm_numbers_queue > ARCMSR_MAX_HBD_POSTQUEUE)
3610 		acb->maxOutstanding = ARCMSR_MAX_HBD_POSTQUEUE - 1;
3611 	else
3612 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
3613 }
3614 /*
3615 **********************************************************************
3616 **********************************************************************
3617 */
3618 static void arcmsr_get_firmware_spec(struct AdapterControlBlock *acb)
3619 {
3620 	switch (acb->adapter_type) {
3621 	case ACB_ADAPTER_TYPE_A: {
3622 			arcmsr_get_hba_config(acb);
3623 		}
3624 		break;
3625 	case ACB_ADAPTER_TYPE_B: {
3626 			arcmsr_get_hbb_config(acb);
3627 		}
3628 		break;
3629 	case ACB_ADAPTER_TYPE_C: {
3630 			arcmsr_get_hbc_config(acb);
3631 		}
3632 		break;
3633 	case ACB_ADAPTER_TYPE_D: {
3634 			arcmsr_get_hbd_config(acb);
3635 		}
3636 		break;
3637 	}
3638 }
3639 /*
3640 **********************************************************************
3641 **********************************************************************
3642 */
3643 static void arcmsr_wait_firmware_ready( struct AdapterControlBlock *acb)
3644 {
3645 	int	timeout=0;
3646 
3647 	switch (acb->adapter_type) {
3648 	case ACB_ADAPTER_TYPE_A: {
3649 			while ((CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_msgaddr1) & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0)
3650 			{
3651 				if (timeout++ > 2000) /* (2000*15)/1000 = 30 sec */
3652 				{
3653 					printf( "arcmsr%d:timed out waiting for firmware \n", acb->pci_unit);
3654 					return;
3655 				}
3656 				UDELAY(15000); /* wait 15 milli-seconds */
3657 			}
3658 		}
3659 		break;
3660 	case ACB_ADAPTER_TYPE_B: {
3661 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
3662 			while ((READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell) & ARCMSR_MESSAGE_FIRMWARE_OK) == 0)
3663 			{
3664 				if (timeout++ > 2000) /* (2000*15)/1000 = 30 sec */
3665 				{
3666 					printf( "arcmsr%d: timed out waiting for firmware \n", acb->pci_unit);
3667 					return;
3668 				}
3669 				UDELAY(15000); /* wait 15 milli-seconds */
3670 			}
3671 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_END_OF_INTERRUPT);
3672 		}
3673 		break;
3674 	case ACB_ADAPTER_TYPE_C: {
3675 			while ((CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_msgaddr1) & ARCMSR_HBCMU_MESSAGE_FIRMWARE_OK) == 0)
3676 			{
3677 				if (timeout++ > 2000) /* (2000*15)/1000 = 30 sec */
3678 				{
3679 					printf( "arcmsr%d:timed out waiting for firmware ready\n", acb->pci_unit);
3680 					return;
3681 				}
3682 				UDELAY(15000); /* wait 15 milli-seconds */
3683 			}
3684 		}
3685 		break;
3686 	case ACB_ADAPTER_TYPE_D: {
3687 			while ((CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_msgaddr1) & ARCMSR_HBDMU_MESSAGE_FIRMWARE_OK) == 0)
3688 			{
3689 				if (timeout++ > 2000) /* (2000*15)/1000 = 30 sec */
3690 				{
3691 					printf( "arcmsr%d:timed out waiting for firmware ready\n", acb->pci_unit);
3692 					return;
3693 				}
3694 				UDELAY(15000); /* wait 15 milli-seconds */
3695 			}
3696 		}
3697 		break;
3698 	}
3699 }
3700 /*
3701 **********************************************************************
3702 **********************************************************************
3703 */
3704 static void arcmsr_clear_doorbell_queue_buffer( struct AdapterControlBlock *acb)
3705 {
3706 	u_int32_t outbound_doorbell;
3707 
3708 	switch (acb->adapter_type) {
3709 	case ACB_ADAPTER_TYPE_A: {
3710 			/* empty doorbell Qbuffer if door bell ringed */
3711 			outbound_doorbell = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_doorbell);
3712 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_doorbell, outbound_doorbell);	/*clear doorbell interrupt */
3713 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_READ_OK);
3714 
3715 		}
3716 		break;
3717 	case ACB_ADAPTER_TYPE_B: {
3718 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
3719 			WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_MESSAGE_INT_CLEAR_PATTERN);/*clear interrupt and message state*/
3720 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_DATA_READ_OK);
3721 			/* let IOP know data has been read */
3722 		}
3723 		break;
3724 	case ACB_ADAPTER_TYPE_C: {
3725 			/* empty doorbell Qbuffer if door bell ringed */
3726 			outbound_doorbell = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_doorbell);
3727 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, outbound_doorbell_clear, outbound_doorbell);	/*clear doorbell interrupt */
3728 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK);
3729 			CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_doorbell_clear); /* Dummy read to force pci flush */
3730 			CHIP_REG_READ32(HBC_MessageUnit, 0, inbound_doorbell); /* Dummy read to force pci flush */
3731 		}
3732 		break;
3733 	case ACB_ADAPTER_TYPE_D: {
3734 			/* empty doorbell Qbuffer if door bell ringed */
3735 			outbound_doorbell = CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell);
3736 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, outbound_doorbell);	/*clear doorbell interrupt */
3737 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_doorbell, ARCMSR_HBDMU_DRV2IOP_DATA_OUT_READ);
3738 
3739 		}
3740 		break;
3741 	}
3742 }
3743 /*
3744 ************************************************************************
3745 ************************************************************************
3746 */
3747 static u_int32_t arcmsr_iop_confirm(struct AdapterControlBlock *acb)
3748 {
3749 	unsigned long srb_phyaddr;
3750 	u_int32_t srb_phyaddr_hi32;
3751 	u_int32_t srb_phyaddr_lo32;
3752 
3753 	/*
3754 	********************************************************************
3755 	** here we need to tell iop 331 our freesrb.HighPart
3756 	** if freesrb.HighPart is not zero
3757 	********************************************************************
3758 	*/
3759 	srb_phyaddr = (unsigned long) acb->srb_phyaddr.phyaddr;
3760 	srb_phyaddr_hi32 = acb->srb_phyaddr.B.phyadd_high;
3761 	srb_phyaddr_lo32 = acb->srb_phyaddr.B.phyadd_low;
3762 	switch (acb->adapter_type) {
3763 	case ACB_ADAPTER_TYPE_A: {
3764 			if(srb_phyaddr_hi32 != 0) {
3765 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG);
3766 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, msgcode_rwbuffer[1], srb_phyaddr_hi32);
3767 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_SET_CONFIG);
3768 				if(!arcmsr_hba_wait_msgint_ready(acb)) {
3769 					printf( "arcmsr%d: 'set srb high part physical address' timeout \n", acb->pci_unit);
3770 					return FALSE;
3771 				}
3772 			}
3773 		}
3774 		break;
3775 		/*
3776 		***********************************************************************
3777 		**    if adapter type B, set window of "post command Q"
3778 		***********************************************************************
3779 		*/
3780 	case ACB_ADAPTER_TYPE_B: {
3781 			u_int32_t post_queue_phyaddr;
3782 			struct HBB_MessageUnit *phbbmu;
3783 
3784 			phbbmu = (struct HBB_MessageUnit *)acb->pmu;
3785 			phbbmu->postq_index = 0;
3786 			phbbmu->doneq_index = 0;
3787 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_SET_POST_WINDOW);
3788 			if(!arcmsr_hbb_wait_msgint_ready(acb)) {
3789 				printf( "arcmsr%d: 'set window of post command Q' timeout\n", acb->pci_unit);
3790 				return FALSE;
3791 			}
3792 			post_queue_phyaddr = srb_phyaddr + ARCMSR_SRBS_POOL_SIZE
3793 								+ offsetof(struct HBB_MessageUnit, post_qbuffer);
3794 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG); /* driver "set config" signature */
3795 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[1], srb_phyaddr_hi32); /* normal should be zero */
3796 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[2], post_queue_phyaddr); /* postQ size (256+8)*4 */
3797 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[3], post_queue_phyaddr+1056); /* doneQ size (256+8)*4 */
3798 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[4], 1056); /* srb maxQ size must be --> [(256+8)*4] */
3799 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_SET_CONFIG);
3800 			if(!arcmsr_hbb_wait_msgint_ready(acb)) {
3801 				printf( "arcmsr%d: 'set command Q window' timeout \n", acb->pci_unit);
3802 				return FALSE;
3803 			}
3804 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_START_DRIVER_MODE);
3805 			if(!arcmsr_hbb_wait_msgint_ready(acb)) {
3806 				printf( "arcmsr%d: 'start diver mode' timeout \n", acb->pci_unit);
3807 				return FALSE;
3808 			}
3809 		}
3810 		break;
3811 	case ACB_ADAPTER_TYPE_C: {
3812 			if(srb_phyaddr_hi32 != 0) {
3813 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG);
3814 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, msgcode_rwbuffer[1], srb_phyaddr_hi32);
3815 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_SET_CONFIG);
3816 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell,ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
3817 				if(!arcmsr_hbc_wait_msgint_ready(acb)) {
3818 					printf( "arcmsr%d: 'set srb high part physical address' timeout \n", acb->pci_unit);
3819 					return FALSE;
3820 				}
3821 			}
3822 		}
3823 		break;
3824 	case ACB_ADAPTER_TYPE_D: {
3825 			u_int32_t post_queue_phyaddr, done_queue_phyaddr;
3826 			struct HBD_MessageUnit0 *phbdmu;
3827 
3828 			phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
3829 			phbdmu->postq_index = 0;
3830 			phbdmu->doneq_index = 0x40FF;
3831 			post_queue_phyaddr = srb_phyaddr_lo32 + ARCMSR_SRBS_POOL_SIZE
3832 								+ offsetof(struct HBD_MessageUnit0, post_qbuffer);
3833 			done_queue_phyaddr = srb_phyaddr_lo32 + ARCMSR_SRBS_POOL_SIZE
3834 								+ offsetof(struct HBD_MessageUnit0, done_qbuffer);
3835 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG); /* driver "set config" signature */
3836 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[1], srb_phyaddr_hi32);
3837 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[2], post_queue_phyaddr); /* postQ base */
3838 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[3], done_queue_phyaddr); /* doneQ base */
3839 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[4], 0x100);
3840 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_SET_CONFIG);
3841 			if(!arcmsr_hbd_wait_msgint_ready(acb)) {
3842 				printf( "arcmsr%d: 'set srb high part physical address' timeout \n", acb->pci_unit);
3843 				return FALSE;
3844 			}
3845 		}
3846 		break;
3847 	}
3848 	return (TRUE);
3849 }
3850 /*
3851 ************************************************************************
3852 ************************************************************************
3853 */
3854 static void arcmsr_enable_eoi_mode(struct AdapterControlBlock *acb)
3855 {
3856 	switch (acb->adapter_type)
3857 	{
3858 	case ACB_ADAPTER_TYPE_A:
3859 	case ACB_ADAPTER_TYPE_C:
3860 	case ACB_ADAPTER_TYPE_D:
3861 		break;
3862 	case ACB_ADAPTER_TYPE_B: {
3863 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
3864 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_ACTIVE_EOI_MODE);
3865 			if(!arcmsr_hbb_wait_msgint_ready(acb)) {
3866 				printf( "arcmsr%d: 'iop enable eoi mode' timeout \n", acb->pci_unit);
3867 				return;
3868 			}
3869 		}
3870 		break;
3871 	}
3872 }
3873 /*
3874 **********************************************************************
3875 **********************************************************************
3876 */
3877 static void arcmsr_iop_init(struct AdapterControlBlock *acb)
3878 {
3879 	u_int32_t intmask_org;
3880 
3881 	/* disable all outbound interrupt */
3882 	intmask_org = arcmsr_disable_allintr(acb);
3883 	arcmsr_wait_firmware_ready(acb);
3884 	arcmsr_iop_confirm(acb);
3885 	arcmsr_get_firmware_spec(acb);
3886 	/*start background rebuild*/
3887 	arcmsr_start_adapter_bgrb(acb);
3888 	/* empty doorbell Qbuffer if door bell ringed */
3889 	arcmsr_clear_doorbell_queue_buffer(acb);
3890 	arcmsr_enable_eoi_mode(acb);
3891 	/* enable outbound Post Queue, outbound doorbell Interrupt */
3892 	arcmsr_enable_allintr(acb, intmask_org);
3893 	acb->acb_flags |= ACB_F_IOP_INITED;
3894 }
3895 /*
3896 **********************************************************************
3897 **********************************************************************
3898 */
3899 static void arcmsr_map_free_srb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
3900 {
3901 	struct AdapterControlBlock *acb = arg;
3902 	struct CommandControlBlock *srb_tmp;
3903 	u_int32_t i;
3904 	unsigned long srb_phyaddr = (unsigned long)segs->ds_addr;
3905 
3906 	acb->srb_phyaddr.phyaddr = srb_phyaddr;
3907 	srb_tmp = (struct CommandControlBlock *)acb->uncacheptr;
3908 	for(i=0; i < ARCMSR_MAX_FREESRB_NUM; i++) {
3909 		if(bus_dmamap_create(acb->dm_segs_dmat,
3910 			 /*flags*/0, &srb_tmp->dm_segs_dmamap) != 0) {
3911 			acb->acb_flags |= ACB_F_MAPFREESRB_FAILD;
3912 			printf("arcmsr%d:"
3913 			" srb dmamap bus_dmamap_create error\n", acb->pci_unit);
3914 			return;
3915 		}
3916 		if((acb->adapter_type == ACB_ADAPTER_TYPE_C) || (acb->adapter_type == ACB_ADAPTER_TYPE_D))
3917 		{
3918 			srb_tmp->cdb_phyaddr_low = srb_phyaddr;
3919 			srb_tmp->cdb_phyaddr_high = (u_int32_t)((srb_phyaddr >> 16) >> 16);
3920 		}
3921 		else
3922 			srb_tmp->cdb_phyaddr_low = srb_phyaddr >> 5;
3923 		srb_tmp->acb = acb;
3924 		acb->srbworkingQ[i] = acb->psrb_pool[i] = srb_tmp;
3925 		srb_phyaddr = srb_phyaddr + SRB_SIZE;
3926 		srb_tmp = (struct CommandControlBlock *)((unsigned long)srb_tmp + SRB_SIZE);
3927 	}
3928 	acb->vir2phy_offset = (unsigned long)srb_tmp - (unsigned long)srb_phyaddr;
3929 }
3930 /*
3931 ************************************************************************
3932 ************************************************************************
3933 */
3934 static void arcmsr_free_resource(struct AdapterControlBlock *acb)
3935 {
3936 	/* remove the control device */
3937 	if(acb->ioctl_dev != NULL) {
3938 		destroy_dev(acb->ioctl_dev);
3939 	}
3940 	bus_dmamap_unload(acb->srb_dmat, acb->srb_dmamap);
3941 	bus_dmamap_destroy(acb->srb_dmat, acb->srb_dmamap);
3942 	bus_dma_tag_destroy(acb->srb_dmat);
3943 	bus_dma_tag_destroy(acb->dm_segs_dmat);
3944 	bus_dma_tag_destroy(acb->parent_dmat);
3945 }
3946 /*
3947 ************************************************************************
3948 ************************************************************************
3949 */
3950 static void arcmsr_mutex_init(struct AdapterControlBlock *acb)
3951 {
3952 	ARCMSR_LOCK_INIT(&acb->isr_lock, "arcmsr isr lock");
3953 	ARCMSR_LOCK_INIT(&acb->srb_lock, "arcmsr srb lock");
3954 	ARCMSR_LOCK_INIT(&acb->postDone_lock, "arcmsr postQ lock");
3955 	ARCMSR_LOCK_INIT(&acb->qbuffer_lock, "arcmsr RW buffer lock");
3956 }
3957 /*
3958 ************************************************************************
3959 ************************************************************************
3960 */
3961 static void arcmsr_mutex_destroy(struct AdapterControlBlock *acb)
3962 {
3963 	ARCMSR_LOCK_DESTROY(&acb->qbuffer_lock);
3964 	ARCMSR_LOCK_DESTROY(&acb->postDone_lock);
3965 	ARCMSR_LOCK_DESTROY(&acb->srb_lock);
3966 	ARCMSR_LOCK_DESTROY(&acb->isr_lock);
3967 }
3968 /*
3969 ************************************************************************
3970 ************************************************************************
3971 */
3972 static u_int32_t arcmsr_initialize(device_t dev)
3973 {
3974 	struct AdapterControlBlock *acb = device_get_softc(dev);
3975 	u_int16_t pci_command;
3976 	int i, j,max_coherent_size;
3977 	u_int32_t vendor_dev_id;
3978 
3979 	vendor_dev_id = pci_get_devid(dev);
3980 	acb->vendor_device_id = vendor_dev_id;
3981 	acb->sub_device_id = pci_read_config(dev, PCIR_SUBDEV_0, 2);
3982 	switch (vendor_dev_id) {
3983 	case PCIDevVenIDARC1880:
3984 	case PCIDevVenIDARC1882:
3985 	case PCIDevVenIDARC1213:
3986 	case PCIDevVenIDARC1223: {
3987 			acb->adapter_type = ACB_ADAPTER_TYPE_C;
3988 			if (acb->sub_device_id == ARECA_SUB_DEV_ID_1883)
3989 				acb->adapter_bus_speed = ACB_BUS_SPEED_12G;
3990 			else
3991 				acb->adapter_bus_speed = ACB_BUS_SPEED_6G;
3992 			max_coherent_size = ARCMSR_SRBS_POOL_SIZE;
3993 		}
3994 		break;
3995 	case PCIDevVenIDARC1214: {
3996 			acb->adapter_type = ACB_ADAPTER_TYPE_D;
3997 			acb->adapter_bus_speed = ACB_BUS_SPEED_6G;
3998 			max_coherent_size = ARCMSR_SRBS_POOL_SIZE + (sizeof(struct HBD_MessageUnit0));
3999 		}
4000 		break;
4001 	case PCIDevVenIDARC1200:
4002 	case PCIDevVenIDARC1201: {
4003 			acb->adapter_type = ACB_ADAPTER_TYPE_B;
4004 			acb->adapter_bus_speed = ACB_BUS_SPEED_3G;
4005 			max_coherent_size = ARCMSR_SRBS_POOL_SIZE + (sizeof(struct HBB_MessageUnit));
4006 		}
4007 		break;
4008 	case PCIDevVenIDARC1203: {
4009 			acb->adapter_type = ACB_ADAPTER_TYPE_B;
4010 			acb->adapter_bus_speed = ACB_BUS_SPEED_6G;
4011 			max_coherent_size = ARCMSR_SRBS_POOL_SIZE + (sizeof(struct HBB_MessageUnit));
4012 		}
4013 		break;
4014 	case PCIDevVenIDARC1110:
4015 	case PCIDevVenIDARC1120:
4016 	case PCIDevVenIDARC1130:
4017 	case PCIDevVenIDARC1160:
4018 	case PCIDevVenIDARC1170:
4019 	case PCIDevVenIDARC1210:
4020 	case PCIDevVenIDARC1220:
4021 	case PCIDevVenIDARC1230:
4022 	case PCIDevVenIDARC1231:
4023 	case PCIDevVenIDARC1260:
4024 	case PCIDevVenIDARC1261:
4025 	case PCIDevVenIDARC1270:
4026 	case PCIDevVenIDARC1280:
4027 	case PCIDevVenIDARC1212:
4028 	case PCIDevVenIDARC1222:
4029 	case PCIDevVenIDARC1380:
4030 	case PCIDevVenIDARC1381:
4031 	case PCIDevVenIDARC1680:
4032 	case PCIDevVenIDARC1681: {
4033 			acb->adapter_type = ACB_ADAPTER_TYPE_A;
4034 			acb->adapter_bus_speed = ACB_BUS_SPEED_3G;
4035 			max_coherent_size = ARCMSR_SRBS_POOL_SIZE;
4036 		}
4037 		break;
4038 	default: {
4039 			printf("arcmsr%d:"
4040 			" unknown RAID adapter type \n", device_get_unit(dev));
4041 			return ENOMEM;
4042 		}
4043 	}
4044 #if __FreeBSD_version >= 700000
4045 	if(bus_dma_tag_create(  /*PCI parent*/		bus_get_dma_tag(dev),
4046 #else
4047 	if(bus_dma_tag_create(  /*PCI parent*/		NULL,
4048 #endif
4049 				/*alignemnt*/		1,
4050 				/*boundary*/		0,
4051 				/*lowaddr*/		BUS_SPACE_MAXADDR,
4052 				/*highaddr*/		BUS_SPACE_MAXADDR,
4053 				/*filter*/		NULL,
4054 				/*filterarg*/		NULL,
4055 				/*maxsize*/		BUS_SPACE_MAXSIZE_32BIT,
4056 				/*nsegments*/		BUS_SPACE_UNRESTRICTED,
4057 				/*maxsegsz*/		BUS_SPACE_MAXSIZE_32BIT,
4058 				/*flags*/		0,
4059 #if __FreeBSD_version >= 501102
4060 				/*lockfunc*/		NULL,
4061 				/*lockarg*/		NULL,
4062 #endif
4063 							&acb->parent_dmat) != 0)
4064 	{
4065 		printf("arcmsr%d: parent_dmat bus_dma_tag_create failure!\n", device_get_unit(dev));
4066 		return ENOMEM;
4067 	}
4068 
4069 	/* Create a single tag describing a region large enough to hold all of the s/g lists we will need. */
4070 	if(bus_dma_tag_create(  /*parent_dmat*/		acb->parent_dmat,
4071 				/*alignment*/		1,
4072 				/*boundary*/		0,
4073 #ifdef PAE
4074 				/*lowaddr*/		BUS_SPACE_MAXADDR_32BIT,
4075 #else
4076 				/*lowaddr*/		BUS_SPACE_MAXADDR,
4077 #endif
4078 				/*highaddr*/		BUS_SPACE_MAXADDR,
4079 				/*filter*/		NULL,
4080 				/*filterarg*/		NULL,
4081 				/*maxsize*/		ARCMSR_MAX_SG_ENTRIES * PAGE_SIZE * ARCMSR_MAX_FREESRB_NUM,
4082 				/*nsegments*/		ARCMSR_MAX_SG_ENTRIES,
4083 				/*maxsegsz*/		BUS_SPACE_MAXSIZE_32BIT,
4084 				/*flags*/		0,
4085 #if __FreeBSD_version >= 501102
4086 				/*lockfunc*/		busdma_lock_mutex,
4087 				/*lockarg*/		&acb->isr_lock,
4088 #endif
4089 							&acb->dm_segs_dmat) != 0)
4090 	{
4091 		bus_dma_tag_destroy(acb->parent_dmat);
4092 		printf("arcmsr%d: dm_segs_dmat bus_dma_tag_create failure!\n", device_get_unit(dev));
4093 		return ENOMEM;
4094 	}
4095 
4096 	/* DMA tag for our srb structures.... Allocate the freesrb memory */
4097 	if(bus_dma_tag_create(  /*parent_dmat*/		acb->parent_dmat,
4098 				/*alignment*/		0x20,
4099 				/*boundary*/		0,
4100 				/*lowaddr*/		BUS_SPACE_MAXADDR_32BIT,
4101 				/*highaddr*/		BUS_SPACE_MAXADDR,
4102 				/*filter*/		NULL,
4103 				/*filterarg*/		NULL,
4104 				/*maxsize*/		max_coherent_size,
4105 				/*nsegments*/		1,
4106 				/*maxsegsz*/		BUS_SPACE_MAXSIZE_32BIT,
4107 				/*flags*/		0,
4108 #if __FreeBSD_version >= 501102
4109 				/*lockfunc*/		NULL,
4110 				/*lockarg*/		NULL,
4111 #endif
4112 							&acb->srb_dmat) != 0)
4113 	{
4114 		bus_dma_tag_destroy(acb->dm_segs_dmat);
4115 		bus_dma_tag_destroy(acb->parent_dmat);
4116 		printf("arcmsr%d: srb_dmat bus_dma_tag_create failure!\n", device_get_unit(dev));
4117 		return ENXIO;
4118 	}
4119 	/* Allocation for our srbs */
4120 	if(bus_dmamem_alloc(acb->srb_dmat, (void **)&acb->uncacheptr, BUS_DMA_WAITOK | BUS_DMA_COHERENT | BUS_DMA_ZERO, &acb->srb_dmamap) != 0) {
4121 		bus_dma_tag_destroy(acb->srb_dmat);
4122 		bus_dma_tag_destroy(acb->dm_segs_dmat);
4123 		bus_dma_tag_destroy(acb->parent_dmat);
4124 		printf("arcmsr%d: srb_dmat bus_dmamem_alloc failure!\n", device_get_unit(dev));
4125 		return ENXIO;
4126 	}
4127 	/* And permanently map them */
4128 	if(bus_dmamap_load(acb->srb_dmat, acb->srb_dmamap, acb->uncacheptr, max_coherent_size, arcmsr_map_free_srb, acb, /*flags*/0)) {
4129 		bus_dma_tag_destroy(acb->srb_dmat);
4130 		bus_dma_tag_destroy(acb->dm_segs_dmat);
4131 		bus_dma_tag_destroy(acb->parent_dmat);
4132 		printf("arcmsr%d: srb_dmat bus_dmamap_load failure!\n", device_get_unit(dev));
4133 		return ENXIO;
4134 	}
4135 	pci_command = pci_read_config(dev, PCIR_COMMAND, 2);
4136 	pci_command |= PCIM_CMD_BUSMASTEREN;
4137 	pci_command |= PCIM_CMD_PERRESPEN;
4138 	pci_command |= PCIM_CMD_MWRICEN;
4139 	/* Enable Busmaster */
4140 	pci_write_config(dev, PCIR_COMMAND, pci_command, 2);
4141 	switch(acb->adapter_type) {
4142 	case ACB_ADAPTER_TYPE_A: {
4143 			u_int32_t rid0 = PCIR_BAR(0);
4144 			vm_offset_t	mem_base0;
4145 
4146 			acb->sys_res_arcmsr[0] = bus_alloc_resource(dev,SYS_RES_MEMORY, &rid0, 0ul, ~0ul, 0x1000, RF_ACTIVE);
4147 			if(acb->sys_res_arcmsr[0] == NULL) {
4148 				arcmsr_free_resource(acb);
4149 				printf("arcmsr%d: bus_alloc_resource failure!\n", device_get_unit(dev));
4150 				return ENOMEM;
4151 			}
4152 			if(rman_get_start(acb->sys_res_arcmsr[0]) <= 0) {
4153 				arcmsr_free_resource(acb);
4154 				printf("arcmsr%d: rman_get_start failure!\n", device_get_unit(dev));
4155 				return ENXIO;
4156 			}
4157 			mem_base0 = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[0]);
4158 			if(mem_base0 == 0) {
4159 				arcmsr_free_resource(acb);
4160 				printf("arcmsr%d: rman_get_virtual failure!\n", device_get_unit(dev));
4161 				return ENXIO;
4162 			}
4163 			acb->btag[0] = rman_get_bustag(acb->sys_res_arcmsr[0]);
4164 			acb->bhandle[0] = rman_get_bushandle(acb->sys_res_arcmsr[0]);
4165 			acb->pmu = (struct MessageUnit_UNION *)mem_base0;
4166 		}
4167 		break;
4168 	case ACB_ADAPTER_TYPE_B: {
4169 			struct HBB_MessageUnit *phbbmu;
4170 			struct CommandControlBlock *freesrb;
4171 			u_int32_t rid[]={ PCIR_BAR(0), PCIR_BAR(2) };
4172 			vm_offset_t	mem_base[]={0,0};
4173 			u_long	size;
4174 			if (vendor_dev_id == PCIDevVenIDARC1203)
4175 				size = sizeof(struct HBB_DOORBELL_1203);
4176 			else
4177 				size = sizeof(struct HBB_DOORBELL);
4178 			for(i=0; i < 2; i++) {
4179 				if(i == 0) {
4180 					acb->sys_res_arcmsr[i] = bus_alloc_resource(dev,SYS_RES_MEMORY, &rid[i],
4181 											0ul, ~0ul, size, RF_ACTIVE);
4182 				} else {
4183 					acb->sys_res_arcmsr[i] = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid[i],
4184 											0ul, ~0ul, sizeof(struct HBB_RWBUFFER), RF_ACTIVE);
4185 				}
4186 				if(acb->sys_res_arcmsr[i] == NULL) {
4187 					arcmsr_free_resource(acb);
4188 					printf("arcmsr%d: bus_alloc_resource %d failure!\n", device_get_unit(dev), i);
4189 					return ENOMEM;
4190 				}
4191 				if(rman_get_start(acb->sys_res_arcmsr[i]) <= 0) {
4192 					arcmsr_free_resource(acb);
4193 					printf("arcmsr%d: rman_get_start %d failure!\n", device_get_unit(dev), i);
4194 					return ENXIO;
4195 				}
4196 				mem_base[i] = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[i]);
4197 				if(mem_base[i] == 0) {
4198 					arcmsr_free_resource(acb);
4199 					printf("arcmsr%d: rman_get_virtual %d failure!\n", device_get_unit(dev), i);
4200 					return ENXIO;
4201 				}
4202 				acb->btag[i] = rman_get_bustag(acb->sys_res_arcmsr[i]);
4203 				acb->bhandle[i] = rman_get_bushandle(acb->sys_res_arcmsr[i]);
4204 			}
4205 			freesrb = (struct CommandControlBlock *)acb->uncacheptr;
4206 			acb->pmu = (struct MessageUnit_UNION *)((unsigned long)freesrb+ARCMSR_SRBS_POOL_SIZE);
4207 			phbbmu = (struct HBB_MessageUnit *)acb->pmu;
4208 			phbbmu->hbb_doorbell = (struct HBB_DOORBELL *)mem_base[0];
4209 			phbbmu->hbb_rwbuffer = (struct HBB_RWBUFFER *)mem_base[1];
4210 			if (vendor_dev_id == PCIDevVenIDARC1203) {
4211 				phbbmu->drv2iop_doorbell = offsetof(struct HBB_DOORBELL_1203, drv2iop_doorbell);
4212 				phbbmu->drv2iop_doorbell_mask = offsetof(struct HBB_DOORBELL_1203, drv2iop_doorbell_mask);
4213 				phbbmu->iop2drv_doorbell = offsetof(struct HBB_DOORBELL_1203, iop2drv_doorbell);
4214 				phbbmu->iop2drv_doorbell_mask = offsetof(struct HBB_DOORBELL_1203, iop2drv_doorbell_mask);
4215 			} else {
4216 				phbbmu->drv2iop_doorbell = offsetof(struct HBB_DOORBELL, drv2iop_doorbell);
4217 				phbbmu->drv2iop_doorbell_mask = offsetof(struct HBB_DOORBELL, drv2iop_doorbell_mask);
4218 				phbbmu->iop2drv_doorbell = offsetof(struct HBB_DOORBELL, iop2drv_doorbell);
4219 				phbbmu->iop2drv_doorbell_mask = offsetof(struct HBB_DOORBELL, iop2drv_doorbell_mask);
4220 			}
4221 		}
4222 		break;
4223 	case ACB_ADAPTER_TYPE_C: {
4224 			u_int32_t rid0 = PCIR_BAR(1);
4225 			vm_offset_t	mem_base0;
4226 
4227 			acb->sys_res_arcmsr[0] = bus_alloc_resource(dev,SYS_RES_MEMORY, &rid0, 0ul, ~0ul, sizeof(struct HBC_MessageUnit), RF_ACTIVE);
4228 			if(acb->sys_res_arcmsr[0] == NULL) {
4229 				arcmsr_free_resource(acb);
4230 				printf("arcmsr%d: bus_alloc_resource failure!\n", device_get_unit(dev));
4231 				return ENOMEM;
4232 			}
4233 			if(rman_get_start(acb->sys_res_arcmsr[0]) <= 0) {
4234 				arcmsr_free_resource(acb);
4235 				printf("arcmsr%d: rman_get_start failure!\n", device_get_unit(dev));
4236 				return ENXIO;
4237 			}
4238 			mem_base0 = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[0]);
4239 			if(mem_base0 == 0) {
4240 				arcmsr_free_resource(acb);
4241 				printf("arcmsr%d: rman_get_virtual failure!\n", device_get_unit(dev));
4242 				return ENXIO;
4243 			}
4244 			acb->btag[0] = rman_get_bustag(acb->sys_res_arcmsr[0]);
4245 			acb->bhandle[0] = rman_get_bushandle(acb->sys_res_arcmsr[0]);
4246 			acb->pmu = (struct MessageUnit_UNION *)mem_base0;
4247 		}
4248 		break;
4249 	case ACB_ADAPTER_TYPE_D: {
4250 			struct HBD_MessageUnit0 *phbdmu;
4251 			u_int32_t rid0 = PCIR_BAR(0);
4252 			vm_offset_t	mem_base0;
4253 
4254 			acb->sys_res_arcmsr[0] = bus_alloc_resource(dev,SYS_RES_MEMORY, &rid0, 0ul, ~0ul, sizeof(struct HBD_MessageUnit), RF_ACTIVE);
4255 			if(acb->sys_res_arcmsr[0] == NULL) {
4256 				arcmsr_free_resource(acb);
4257 				printf("arcmsr%d: bus_alloc_resource failure!\n", device_get_unit(dev));
4258 				return ENOMEM;
4259 			}
4260 			if(rman_get_start(acb->sys_res_arcmsr[0]) <= 0) {
4261 				arcmsr_free_resource(acb);
4262 				printf("arcmsr%d: rman_get_start failure!\n", device_get_unit(dev));
4263 				return ENXIO;
4264 			}
4265 			mem_base0 = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[0]);
4266 			if(mem_base0 == 0) {
4267 				arcmsr_free_resource(acb);
4268 				printf("arcmsr%d: rman_get_virtual failure!\n", device_get_unit(dev));
4269 				return ENXIO;
4270 			}
4271 			acb->btag[0] = rman_get_bustag(acb->sys_res_arcmsr[0]);
4272 			acb->bhandle[0] = rman_get_bushandle(acb->sys_res_arcmsr[0]);
4273 			acb->pmu = (struct MessageUnit_UNION *)((unsigned long)acb->uncacheptr+ARCMSR_SRBS_POOL_SIZE);
4274 			phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
4275 			phbdmu->phbdmu = (struct HBD_MessageUnit *)mem_base0;
4276 		}
4277 		break;
4278 	}
4279 	if(acb->acb_flags & ACB_F_MAPFREESRB_FAILD) {
4280 		arcmsr_free_resource(acb);
4281 		printf("arcmsr%d: map free srb failure!\n", device_get_unit(dev));
4282 		return ENXIO;
4283 	}
4284 	acb->acb_flags  |= (ACB_F_MESSAGE_WQBUFFER_CLEARED|ACB_F_MESSAGE_RQBUFFER_CLEARED|ACB_F_MESSAGE_WQBUFFER_READ);
4285 	acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER;
4286 	/*
4287 	********************************************************************
4288 	** init raid volume state
4289 	********************************************************************
4290 	*/
4291 	for(i=0; i < ARCMSR_MAX_TARGETID; i++) {
4292 		for(j=0; j < ARCMSR_MAX_TARGETLUN; j++) {
4293 			acb->devstate[i][j] = ARECA_RAID_GONE;
4294 		}
4295 	}
4296 	arcmsr_iop_init(acb);
4297 	return(0);
4298 }
4299 /*
4300 ************************************************************************
4301 ************************************************************************
4302 */
4303 static int arcmsr_attach(device_t dev)
4304 {
4305 	struct AdapterControlBlock *acb=(struct AdapterControlBlock *)device_get_softc(dev);
4306 	u_int32_t unit=device_get_unit(dev);
4307 	struct ccb_setasync csa;
4308 	struct cam_devq	*devq;	/* Device Queue to use for this SIM */
4309 	struct resource	*irqres;
4310 	int	rid;
4311 
4312 	if(acb == NULL) {
4313 		printf("arcmsr%d: cannot allocate softc\n", unit);
4314 		return (ENOMEM);
4315 	}
4316 	arcmsr_mutex_init(acb);
4317 	acb->pci_dev = dev;
4318 	acb->pci_unit = unit;
4319 	if(arcmsr_initialize(dev)) {
4320 		printf("arcmsr%d: initialize failure!\n", unit);
4321 		arcmsr_mutex_destroy(acb);
4322 		return ENXIO;
4323 	}
4324 	/* After setting up the adapter, map our interrupt */
4325 	rid = 0;
4326 	irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_SHAREABLE | RF_ACTIVE);
4327 	if(irqres == NULL ||
4328 #if __FreeBSD_version >= 700025
4329 		bus_setup_intr(dev, irqres, INTR_TYPE_CAM|INTR_ENTROPY|INTR_MPSAFE, NULL, arcmsr_intr_handler, acb, &acb->ih)) {
4330 #else
4331 		bus_setup_intr(dev, irqres, INTR_TYPE_CAM|INTR_ENTROPY|INTR_MPSAFE, arcmsr_intr_handler, acb, &acb->ih)) {
4332 #endif
4333 		arcmsr_free_resource(acb);
4334 		arcmsr_mutex_destroy(acb);
4335 		printf("arcmsr%d: unable to register interrupt handler!\n", unit);
4336 		return ENXIO;
4337 	}
4338 	acb->irqres = irqres;
4339 	/*
4340 	 * Now let the CAM generic SCSI layer find the SCSI devices on
4341 	 * the bus *  start queue to reset to the idle loop. *
4342 	 * Create device queue of SIM(s) *  (MAX_START_JOB - 1) :
4343 	 * max_sim_transactions
4344 	*/
4345 	devq = cam_simq_alloc(acb->maxOutstanding);
4346 	if(devq == NULL) {
4347 		arcmsr_free_resource(acb);
4348 		bus_release_resource(dev, SYS_RES_IRQ, 0, acb->irqres);
4349 		arcmsr_mutex_destroy(acb);
4350 		printf("arcmsr%d: cam_simq_alloc failure!\n", unit);
4351 		return ENXIO;
4352 	}
4353 #if __FreeBSD_version >= 700025
4354 	acb->psim = cam_sim_alloc(arcmsr_action, arcmsr_poll, "arcmsr", acb, unit, &acb->isr_lock, 1, ARCMSR_MAX_OUTSTANDING_CMD, devq);
4355 #else
4356 	acb->psim = cam_sim_alloc(arcmsr_action, arcmsr_poll, "arcmsr", acb, unit, 1, ARCMSR_MAX_OUTSTANDING_CMD, devq);
4357 #endif
4358 	if(acb->psim == NULL) {
4359 		arcmsr_free_resource(acb);
4360 		bus_release_resource(dev, SYS_RES_IRQ, 0, acb->irqres);
4361 		cam_simq_free(devq);
4362 		arcmsr_mutex_destroy(acb);
4363 		printf("arcmsr%d: cam_sim_alloc failure!\n", unit);
4364 		return ENXIO;
4365 	}
4366 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
4367 #if __FreeBSD_version >= 700044
4368 	if(xpt_bus_register(acb->psim, dev, 0) != CAM_SUCCESS) {
4369 #else
4370 	if(xpt_bus_register(acb->psim, 0) != CAM_SUCCESS) {
4371 #endif
4372 		arcmsr_free_resource(acb);
4373 		bus_release_resource(dev, SYS_RES_IRQ, 0, acb->irqres);
4374 		cam_sim_free(acb->psim, /*free_devq*/TRUE);
4375 		arcmsr_mutex_destroy(acb);
4376 		printf("arcmsr%d: xpt_bus_register failure!\n", unit);
4377 		return ENXIO;
4378 	}
4379 	if(xpt_create_path(&acb->ppath, /* periph */ NULL, cam_sim_path(acb->psim), CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
4380 		arcmsr_free_resource(acb);
4381 		bus_release_resource(dev, SYS_RES_IRQ, 0, acb->irqres);
4382 		xpt_bus_deregister(cam_sim_path(acb->psim));
4383 		cam_sim_free(acb->psim, /* free_simq */ TRUE);
4384 		arcmsr_mutex_destroy(acb);
4385 		printf("arcmsr%d: xpt_create_path failure!\n", unit);
4386 		return ENXIO;
4387 	}
4388 	/*
4389 	****************************************************
4390 	*/
4391 	xpt_setup_ccb(&csa.ccb_h, acb->ppath, /*priority*/5);
4392 	csa.ccb_h.func_code = XPT_SASYNC_CB;
4393 	csa.event_enable = AC_FOUND_DEVICE|AC_LOST_DEVICE;
4394 	csa.callback = arcmsr_async;
4395 	csa.callback_arg = acb->psim;
4396 	xpt_action((union ccb *)&csa);
4397 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
4398 	/* Create the control device.  */
4399 	acb->ioctl_dev = make_dev(&arcmsr_cdevsw, unit, UID_ROOT, GID_WHEEL /* GID_OPERATOR */, S_IRUSR | S_IWUSR, "arcmsr%d", unit);
4400 
4401 #if __FreeBSD_version < 503000
4402 	acb->ioctl_dev->si_drv1 = acb;
4403 #endif
4404 #if __FreeBSD_version > 500005
4405 	(void)make_dev_alias(acb->ioctl_dev, "arc%d", unit);
4406 #endif
4407 	arcmsr_callout_init(&acb->devmap_callout);
4408 	callout_reset(&acb->devmap_callout, 60 * hz, arcmsr_polling_devmap, acb);
4409 	return (0);
4410 }
4411 
4412 /*
4413 ************************************************************************
4414 ************************************************************************
4415 */
4416 static int arcmsr_probe(device_t dev)
4417 {
4418 	u_int32_t id;
4419 	u_int16_t sub_device_id;
4420 	static char buf[256];
4421 	char x_type[]={"unknown"};
4422 	char *type;
4423 	int raid6 = 1;
4424 
4425 	if (pci_get_vendor(dev) != PCI_VENDOR_ID_ARECA) {
4426 		return (ENXIO);
4427 	}
4428 	sub_device_id = pci_read_config(dev, PCIR_SUBDEV_0, 2);
4429 	switch(id = pci_get_devid(dev)) {
4430 	case PCIDevVenIDARC1110:
4431 	case PCIDevVenIDARC1200:
4432 	case PCIDevVenIDARC1201:
4433 	case PCIDevVenIDARC1210:
4434 		raid6 = 0;
4435 		/*FALLTHRU*/
4436 	case PCIDevVenIDARC1120:
4437 	case PCIDevVenIDARC1130:
4438 	case PCIDevVenIDARC1160:
4439 	case PCIDevVenIDARC1170:
4440 	case PCIDevVenIDARC1220:
4441 	case PCIDevVenIDARC1230:
4442 	case PCIDevVenIDARC1231:
4443 	case PCIDevVenIDARC1260:
4444 	case PCIDevVenIDARC1261:
4445 	case PCIDevVenIDARC1270:
4446 	case PCIDevVenIDARC1280:
4447 		type = "SATA 3G";
4448 		break;
4449 	case PCIDevVenIDARC1212:
4450 	case PCIDevVenIDARC1222:
4451 	case PCIDevVenIDARC1380:
4452 	case PCIDevVenIDARC1381:
4453 	case PCIDevVenIDARC1680:
4454 	case PCIDevVenIDARC1681:
4455 		type = "SAS 3G";
4456 		break;
4457 	case PCIDevVenIDARC1880:
4458 	case PCIDevVenIDARC1882:
4459 	case PCIDevVenIDARC1213:
4460 	case PCIDevVenIDARC1223:
4461 		if (sub_device_id == ARECA_SUB_DEV_ID_1883)
4462 			type = "SAS 12G";
4463 		else
4464 			type = "SAS 6G";
4465 		break;
4466 	case PCIDevVenIDARC1214:
4467 	case PCIDevVenIDARC1203:
4468 		type = "SATA 6G";
4469 		break;
4470 	default:
4471 		type = x_type;
4472 		raid6 = 0;
4473 		break;
4474 	}
4475 	if(type == x_type)
4476 		return(ENXIO);
4477 	sprintf(buf, "Areca %s Host Adapter RAID Controller %s\n%s\n",
4478 		type, raid6 ? "(RAID6 capable)" : "", ARCMSR_DRIVER_VERSION);
4479 	device_set_desc_copy(dev, buf);
4480 	return (BUS_PROBE_DEFAULT);
4481 }
4482 /*
4483 ************************************************************************
4484 ************************************************************************
4485 */
4486 static int arcmsr_shutdown(device_t dev)
4487 {
4488 	u_int32_t  i;
4489 	u_int32_t intmask_org;
4490 	struct CommandControlBlock *srb;
4491 	struct AdapterControlBlock *acb=(struct AdapterControlBlock *)device_get_softc(dev);
4492 
4493 	/* stop adapter background rebuild */
4494 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
4495 	/* disable all outbound interrupt */
4496 	intmask_org = arcmsr_disable_allintr(acb);
4497 	arcmsr_stop_adapter_bgrb(acb);
4498 	arcmsr_flush_adapter_cache(acb);
4499 	/* abort all outstanding command */
4500 	acb->acb_flags |= ACB_F_SCSISTOPADAPTER;
4501 	acb->acb_flags &= ~ACB_F_IOP_INITED;
4502 	if(acb->srboutstandingcount != 0) {
4503 		/*clear and abort all outbound posted Q*/
4504 		arcmsr_done4abort_postqueue(acb);
4505 		/* talk to iop 331 outstanding command aborted*/
4506 		arcmsr_abort_allcmd(acb);
4507 		for(i=0; i < ARCMSR_MAX_FREESRB_NUM; i++) {
4508 			srb = acb->psrb_pool[i];
4509 			if(srb->srb_state == ARCMSR_SRB_START) {
4510 				srb->srb_state = ARCMSR_SRB_ABORTED;
4511 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
4512 				arcmsr_srb_complete(srb, 1);
4513 			}
4514 		}
4515 	}
4516 	acb->srboutstandingcount = 0;
4517 	acb->workingsrb_doneindex = 0;
4518 	acb->workingsrb_startindex = 0;
4519 	acb->pktRequestCount = 0;
4520 	acb->pktReturnCount = 0;
4521 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
4522 	return (0);
4523 }
4524 /*
4525 ************************************************************************
4526 ************************************************************************
4527 */
4528 static int arcmsr_detach(device_t dev)
4529 {
4530 	struct AdapterControlBlock *acb=(struct AdapterControlBlock *)device_get_softc(dev);
4531 	int i;
4532 
4533 	callout_stop(&acb->devmap_callout);
4534 	bus_teardown_intr(dev, acb->irqres, acb->ih);
4535 	arcmsr_shutdown(dev);
4536 	arcmsr_free_resource(acb);
4537 	for(i=0; (acb->sys_res_arcmsr[i]!=NULL) && (i<2); i++) {
4538 		bus_release_resource(dev, SYS_RES_MEMORY, PCIR_BAR(i), acb->sys_res_arcmsr[i]);
4539 	}
4540 	bus_release_resource(dev, SYS_RES_IRQ, 0, acb->irqres);
4541 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
4542 	xpt_async(AC_LOST_DEVICE, acb->ppath, NULL);
4543 	xpt_free_path(acb->ppath);
4544 	xpt_bus_deregister(cam_sim_path(acb->psim));
4545 	cam_sim_free(acb->psim, TRUE);
4546 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
4547 	arcmsr_mutex_destroy(acb);
4548 	return (0);
4549 }
4550 
4551 #ifdef ARCMSR_DEBUG1
4552 static void arcmsr_dump_data(struct AdapterControlBlock *acb)
4553 {
4554 	if((acb->pktRequestCount - acb->pktReturnCount) == 0)
4555 		return;
4556 	printf("Command Request Count   =0x%x\n",acb->pktRequestCount);
4557 	printf("Command Return Count    =0x%x\n",acb->pktReturnCount);
4558 	printf("Command (Req-Rtn) Count =0x%x\n",(acb->pktRequestCount - acb->pktReturnCount));
4559 	printf("Queued Command Count    =0x%x\n",acb->srboutstandingcount);
4560 }
4561 #endif
4562 
4563