xref: /freebsd/sys/dev/arcmsr/arcmsr.c (revision aa1a8ff2d6dbc51ef058f46f3db5a8bb77967145)
1 /*
2 ********************************************************************************
3 **        OS    : FreeBSD
4 **   FILE NAME  : arcmsr.c
5 **        BY    : Erich Chen, Ching Huang
6 **   Description: SCSI RAID Device Driver for
7 **                ARECA (ARC11XX/ARC12XX/ARC13XX/ARC16XX/ARC188x)
8 **                SATA/SAS RAID HOST Adapter
9 ********************************************************************************
10 ********************************************************************************
11 **
12 ** SPDX-License-Identifier: BSD-3-Clause
13 **
14 ** Copyright (C) 2002 - 2012, Areca Technology Corporation All rights reserved.
15 **
16 ** Redistribution and use in source and binary forms, with or without
17 ** modification, are permitted provided that the following conditions
18 ** are met:
19 ** 1. Redistributions of source code must retain the above copyright
20 **    notice, this list of conditions and the following disclaimer.
21 ** 2. Redistributions in binary form must reproduce the above copyright
22 **    notice, this list of conditions and the following disclaimer in the
23 **    documentation and/or other materials provided with the distribution.
24 ** 3. The name of the author may not be used to endorse or promote products
25 **    derived from this software without specific prior written permission.
26 **
27 ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
28 ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
29 ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
30 ** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
31 ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT
32 ** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
33 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY
34 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
35 **(INCLUDING NEGLIGENCE OR OTHERWISE)ARISING IN ANY WAY OUT OF THE USE OF
36 ** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 ********************************************************************************
38 ** History
39 **
40 **    REV#         DATE         NAME        DESCRIPTION
41 ** 1.00.00.00   03/31/2004  Erich Chen      First release
42 ** 1.20.00.02   11/29/2004  Erich Chen      bug fix with arcmsr_bus_reset when PHY error
43 ** 1.20.00.03   04/19/2005  Erich Chen      add SATA 24 Ports adapter type support
44 **                                          clean unused function
45 ** 1.20.00.12   09/12/2005  Erich Chen      bug fix with abort command handling,
46 **                                          firmware version check
47 **                                          and firmware update notify for hardware bug fix
48 **                                          handling if none zero high part physical address
49 **                                          of srb resource
50 ** 1.20.00.13   08/18/2006  Erich Chen      remove pending srb and report busy
51 **                                          add iop message xfer
52 **                                          with scsi pass-through command
53 **                                          add new device id of sas raid adapters
54 **                                          code fit for SPARC64 & PPC
55 ** 1.20.00.14   02/05/2007  Erich Chen      bug fix for incorrect ccb_h.status report
56 **                                          and cause g_vfs_done() read write error
57 ** 1.20.00.15   10/10/2007  Erich Chen      support new RAID adapter type ARC120x
58 ** 1.20.00.16   10/10/2009  Erich Chen      Bug fix for RAID adapter type ARC120x
59 **                                          bus_dmamem_alloc() with BUS_DMA_ZERO
60 ** 1.20.00.17   07/15/2010  Ching Huang     Added support ARC1880
61 **                                          report CAM_DEV_NOT_THERE instead of CAM_SEL_TIMEOUT when device failed,
62 **                                          prevent cam_periph_error removing all LUN devices of one Target id
63 **                                          for any one LUN device failed
64 ** 1.20.00.18   10/14/2010  Ching Huang     Fixed "inquiry data fails comparion at DV1 step"
65 **              10/25/2010  Ching Huang     Fixed bad range input in bus_alloc_resource for ADAPTER_TYPE_B
66 ** 1.20.00.19   11/11/2010  Ching Huang     Fixed arcmsr driver prevent arcsas support for Areca SAS HBA ARC13x0
67 ** 1.20.00.20   12/08/2010  Ching Huang     Avoid calling atomic_set_int function
68 ** 1.20.00.21   02/08/2011  Ching Huang     Implement I/O request timeout
69 **              02/14/2011  Ching Huang     Modified pktRequestCount
70 ** 1.20.00.21   03/03/2011  Ching Huang     if a command timeout, then wait its ccb back before free it
71 ** 1.20.00.22   07/04/2011  Ching Huang     Fixed multiple MTX panic
72 ** 1.20.00.23   10/28/2011  Ching Huang     Added TIMEOUT_DELAY in case of too many HDDs need to start
73 ** 1.20.00.23   11/08/2011  Ching Huang     Added report device transfer speed
74 ** 1.20.00.23   01/30/2012  Ching Huang     Fixed Request requeued and Retrying command
75 ** 1.20.00.24   06/11/2012  Ching Huang     Fixed return sense data condition
76 ** 1.20.00.25   08/17/2012  Ching Huang     Fixed hotplug device no function on type A adapter
77 ** 1.20.00.26   12/14/2012  Ching Huang     Added support ARC1214,1224,1264,1284
78 ** 1.20.00.27   05/06/2013  Ching Huang     Fixed out standing cmd full on ARC-12x4
79 ** 1.20.00.28   09/13/2013  Ching Huang     Removed recursive mutex in arcmsr_abort_dr_ccbs
80 ** 1.20.00.29   12/18/2013  Ching Huang     Change simq allocation number, support ARC1883
81 ** 1.30.00.00   11/30/2015  Ching Huang     Added support ARC1203
82 ** 1.40.00.00   07/11/2017  Ching Huang     Added support ARC1884
83 ** 1.40.00.01   10/30/2017  Ching Huang     Fixed release memory resource
84 ** 1.50.00.00   09/30/2020  Ching Huang     Added support ARC-1886, NVMe/SAS/SATA controller
85 ** 1.50.00.01   02/26/2021  Ching Huang     Fixed no action of hot plugging device on type_F adapter
86 ** 1.50.00.02   04/16/2021  Ching Huang     Fixed scsi command timeout on ARC-1886 when
87 **                                          scatter-gather count large than some number
88 ** 1.50.00.03   05/04/2021  Ching Huang     Fixed doorbell status arrived late on ARC-1886
89 ** 1.50.00.04   12/08/2021  Ching Huang     Fixed boot up hung under ARC-1886 with no volume created
90 ** 1.50.00.05   03/23/2023  Ching Huang     Fixed reading buffer empty length error
91 ** 1.50.00.06   08/07/2023  Ching Huang     Add support adapter using system memory as XOR buffer,
92 **                                          Add support device ID 1883,1886
93 ******************************************************************************************
94 */
95 
96 #include <sys/cdefs.h>
97 #if 0
98 #define ARCMSR_DEBUG1			1
99 #endif
100 #include <sys/param.h>
101 #include <sys/systm.h>
102 #include <sys/malloc.h>
103 #include <sys/kernel.h>
104 #include <sys/bus.h>
105 #include <sys/queue.h>
106 #include <sys/stat.h>
107 #include <sys/devicestat.h>
108 #include <sys/kthread.h>
109 #include <sys/module.h>
110 #include <sys/proc.h>
111 #include <sys/lock.h>
112 #include <sys/sysctl.h>
113 #include <sys/poll.h>
114 #include <sys/ioccom.h>
115 #include <vm/vm.h>
116 #include <vm/vm_param.h>
117 #include <vm/pmap.h>
118 
119 #include <isa/rtc.h>
120 
121 #include <machine/bus.h>
122 #include <machine/resource.h>
123 #include <machine/atomic.h>
124 #include <sys/conf.h>
125 #include <sys/rman.h>
126 
127 #include <cam/cam.h>
128 #include <cam/cam_ccb.h>
129 #include <cam/cam_sim.h>
130 #include <cam/cam_periph.h>
131 #include <cam/cam_xpt_periph.h>
132 #include <cam/cam_xpt_sim.h>
133 #include <cam/cam_debug.h>
134 #include <cam/scsi/scsi_all.h>
135 #include <cam/scsi/scsi_message.h>
136 /*
137 **************************************************************************
138 **************************************************************************
139 */
140 #include <sys/selinfo.h>
141 #include <sys/mutex.h>
142 #include <sys/endian.h>
143 #include <dev/pci/pcivar.h>
144 #include <dev/pci/pcireg.h>
145 
146 #define arcmsr_callout_init(a)	callout_init(a, /*mpsafe*/1);
147 
148 #define ARCMSR_DRIVER_VERSION	"arcmsr version 1.50.00.06 2023-08-07"
149 #include <dev/arcmsr/arcmsr.h>
150 /*
151 **************************************************************************
152 **************************************************************************
153 */
154 static void arcmsr_free_srb(struct CommandControlBlock *srb);
155 static struct CommandControlBlock *arcmsr_get_freesrb(struct AdapterControlBlock *acb);
156 static u_int8_t arcmsr_seek_cmd2abort(union ccb *abortccb);
157 static int arcmsr_probe(device_t dev);
158 static int arcmsr_attach(device_t dev);
159 static int arcmsr_detach(device_t dev);
160 static u_int32_t arcmsr_iop_ioctlcmd(struct AdapterControlBlock *acb, u_int32_t ioctl_cmd, caddr_t arg);
161 static void arcmsr_iop_parking(struct AdapterControlBlock *acb);
162 static int arcmsr_shutdown(device_t dev);
163 static void arcmsr_interrupt(struct AdapterControlBlock *acb);
164 static void arcmsr_polling_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb);
165 static void arcmsr_free_resource(struct AdapterControlBlock *acb);
166 static void arcmsr_bus_reset(struct AdapterControlBlock *acb);
167 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb);
168 static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb);
169 static void arcmsr_iop_init(struct AdapterControlBlock *acb);
170 static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb);
171 static u_int32_t arcmsr_Read_iop_rqbuffer_data(struct AdapterControlBlock *acb, struct QBUFFER *prbuffer);
172 static void arcmsr_Write_data_2iop_wqbuffer(struct AdapterControlBlock *acb);
173 static void arcmsr_abort_allcmd(struct AdapterControlBlock *acb);
174 static void arcmsr_srb_complete(struct CommandControlBlock *srb, int stand_flag);
175 static void arcmsr_iop_reset(struct AdapterControlBlock *acb);
176 static void arcmsr_report_sense_info(struct CommandControlBlock *srb);
177 static void arcmsr_build_srb(struct CommandControlBlock *srb, bus_dma_segment_t *dm_segs, u_int32_t nseg);
178 static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, union ccb *pccb);
179 static int arcmsr_resume(device_t dev);
180 static int arcmsr_suspend(device_t dev);
181 static void arcmsr_rescanLun_cb(struct cam_periph *periph, union ccb *ccb);
182 static void arcmsr_polling_devmap(void *arg);
183 static void arcmsr_srb_timeout(void *arg);
184 static void arcmsr_hbd_postqueue_isr(struct AdapterControlBlock *acb);
185 static void arcmsr_hbe_postqueue_isr(struct AdapterControlBlock *acb);
186 static void arcmsr_hbf_postqueue_isr(struct AdapterControlBlock *acb);
187 static void arcmsr_teardown_intr(device_t dev, 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 	DEVMETHOD_END
218 };
219 
220 static driver_t arcmsr_driver={
221 	"arcmsr", arcmsr_methods, sizeof(struct AdapterControlBlock)
222 };
223 
224 DRIVER_MODULE(arcmsr, pci, arcmsr_driver, 0, 0);
225 MODULE_DEPEND(arcmsr, pci, 1, 1, 1);
226 MODULE_DEPEND(arcmsr, cam, 1, 1, 1);
227 #ifndef BUS_DMA_COHERENT
228 	#define	BUS_DMA_COHERENT	0x04	/* hint: map memory in a coherent way */
229 #endif
230 static struct cdevsw arcmsr_cdevsw={
231 		.d_version = D_VERSION,
232 		.d_open    = arcmsr_open, 	/* open     */
233 		.d_close   = arcmsr_close, 	/* close    */
234 		.d_ioctl   = arcmsr_ioctl, 	/* ioctl    */
235 		.d_name    = "arcmsr", 		/* name     */
236 	};
237 /*
238 **************************************************************************
239 **************************************************************************
240 */
241 static int arcmsr_open(struct cdev *dev, int flags, int fmt, struct thread *proc)
242 {
243 	return (0);
244 }
245 /*
246 **************************************************************************
247 **************************************************************************
248 */
249 static int arcmsr_close(struct cdev *dev, int flags, int fmt, struct thread *proc)
250 {
251 	return 0;
252 }
253 /*
254 **************************************************************************
255 **************************************************************************
256 */
257 static int arcmsr_ioctl(struct cdev *dev, u_long ioctl_cmd, caddr_t arg, int flags, struct thread *proc)
258 {
259 	struct AdapterControlBlock *acb = dev->si_drv1;
260 
261 	return (arcmsr_iop_ioctlcmd(acb, ioctl_cmd, arg));
262 }
263 /*
264 **********************************************************************
265 **********************************************************************
266 */
267 static u_int32_t arcmsr_disable_allintr( struct AdapterControlBlock *acb)
268 {
269 	u_int32_t intmask_org = 0;
270 
271 	switch (acb->adapter_type) {
272 	case ACB_ADAPTER_TYPE_A: {
273 			/* disable all outbound interrupt */
274 			intmask_org = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intmask); /* disable outbound message0 int */
275 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intmask, intmask_org|ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE);
276 		}
277 		break;
278 	case ACB_ADAPTER_TYPE_B: {
279 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
280 			/* disable all outbound interrupt */
281 			intmask_org = READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell_mask)
282 						& (~ARCMSR_IOP2DRV_MESSAGE_CMD_DONE); /* disable outbound message0 int */
283 			WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell_mask, 0); /* disable all interrupt */
284 		}
285 		break;
286 	case ACB_ADAPTER_TYPE_C: {
287 			/* disable all outbound interrupt */
288 			intmask_org = CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_mask); /* disable outbound message0 int */
289 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, host_int_mask, intmask_org|ARCMSR_HBCMU_ALL_INTMASKENABLE);
290 		}
291 		break;
292 	case ACB_ADAPTER_TYPE_D: {
293 			/* disable all outbound interrupt */
294 			intmask_org = CHIP_REG_READ32(HBD_MessageUnit, 0, pcief0_int_enable); /* disable outbound message0 int */
295 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, pcief0_int_enable, ARCMSR_HBDMU_ALL_INT_DISABLE);
296 		}
297 		break;
298 	case ACB_ADAPTER_TYPE_E:
299 	case ACB_ADAPTER_TYPE_F: {
300 			/* disable all outbound interrupt */
301 			intmask_org = CHIP_REG_READ32(HBE_MessageUnit, 0, host_int_mask); /* disable outbound message0 int */
302 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_mask, intmask_org | ARCMSR_HBEMU_ALL_INTMASKENABLE);
303 		}
304 		break;
305 	}
306 	return (intmask_org);
307 }
308 /*
309 **********************************************************************
310 **********************************************************************
311 */
312 static void arcmsr_enable_allintr( struct AdapterControlBlock *acb, u_int32_t intmask_org)
313 {
314 	u_int32_t mask;
315 
316 	switch (acb->adapter_type) {
317 	case ACB_ADAPTER_TYPE_A: {
318 			/* enable outbound Post Queue, outbound doorbell Interrupt */
319 			mask = ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE|ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE|ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE);
320 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intmask, intmask_org & mask);
321 			acb->outbound_int_enable = ~(intmask_org & mask) & 0x000000ff;
322 		}
323 		break;
324 	case ACB_ADAPTER_TYPE_B: {
325 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
326 			/* enable ARCMSR_IOP2DRV_MESSAGE_CMD_DONE */
327 			mask = (ARCMSR_IOP2DRV_DATA_WRITE_OK|ARCMSR_IOP2DRV_DATA_READ_OK|ARCMSR_IOP2DRV_CDB_DONE|ARCMSR_IOP2DRV_MESSAGE_CMD_DONE);
328 			WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell_mask, intmask_org | mask); /*1=interrupt enable, 0=interrupt disable*/
329 			acb->outbound_int_enable = (intmask_org | mask) & 0x0000000f;
330 		}
331 		break;
332 	case ACB_ADAPTER_TYPE_C: {
333 			/* enable outbound Post Queue, outbound doorbell Interrupt */
334 			mask = ~(ARCMSR_HBCMU_UTILITY_A_ISR_MASK | ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR_MASK | ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR_MASK);
335 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, host_int_mask, intmask_org & mask);
336 			acb->outbound_int_enable = ~(intmask_org & mask) & 0x0000000f;
337 		}
338 		break;
339 	case ACB_ADAPTER_TYPE_D: {
340 			/* enable outbound Post Queue, outbound doorbell Interrupt */
341 			mask = ARCMSR_HBDMU_ALL_INT_ENABLE;
342 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, pcief0_int_enable, intmask_org | mask);
343 			CHIP_REG_READ32(HBD_MessageUnit, 0, pcief0_int_enable);
344 			acb->outbound_int_enable = mask;
345 		}
346 		break;
347 	case ACB_ADAPTER_TYPE_E:
348 	case ACB_ADAPTER_TYPE_F: {
349 			/* enable outbound Post Queue, outbound doorbell Interrupt */
350 			mask = ~(ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR | ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR);
351 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_mask, intmask_org & mask);
352 			acb->outbound_int_enable = ~(intmask_org & mask) & 0x0000000f;
353 		}
354 		break;
355 	}
356 }
357 /*
358 **********************************************************************
359 **********************************************************************
360 */
361 static u_int8_t arcmsr_hba_wait_msgint_ready(struct AdapterControlBlock *acb)
362 {
363 	u_int32_t Index;
364 	u_int8_t Retries = 0x00;
365 
366 	do {
367 		for(Index=0; Index < 100; Index++) {
368 			if(CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intstatus) & ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
369 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, ARCMSR_MU_OUTBOUND_MESSAGE0_INT);/*clear interrupt*/
370 				return TRUE;
371 			}
372 			UDELAY(10000);
373 		}/*max 1 seconds*/
374 	}while(Retries++ < 20);/*max 20 sec*/
375 	return (FALSE);
376 }
377 /*
378 **********************************************************************
379 **********************************************************************
380 */
381 static u_int8_t arcmsr_hbb_wait_msgint_ready(struct AdapterControlBlock *acb)
382 {
383 	u_int32_t Index;
384 	u_int8_t Retries = 0x00;
385 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
386 
387 	do {
388 		for(Index=0; Index < 100; Index++) {
389 			if(READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell) & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
390 				WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_MESSAGE_INT_CLEAR_PATTERN);/*clear interrupt*/
391 				WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_END_OF_INTERRUPT);
392 				return TRUE;
393 			}
394 			UDELAY(10000);
395 		}/*max 1 seconds*/
396 	}while(Retries++ < 20);/*max 20 sec*/
397 	return (FALSE);
398 }
399 /*
400 **********************************************************************
401 **********************************************************************
402 */
403 static u_int8_t arcmsr_hbc_wait_msgint_ready(struct AdapterControlBlock *acb)
404 {
405 	u_int32_t Index;
406 	u_int8_t Retries = 0x00;
407 
408 	do {
409 		for(Index=0; Index < 100; Index++) {
410 			if(CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
411 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, outbound_doorbell_clear, ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR);/*clear interrupt*/
412 				return TRUE;
413 			}
414 			UDELAY(10000);
415 		}/*max 1 seconds*/
416 	}while(Retries++ < 20);/*max 20 sec*/
417 	return (FALSE);
418 }
419 /*
420 **********************************************************************
421 **********************************************************************
422 */
423 static u_int8_t arcmsr_hbd_wait_msgint_ready(struct AdapterControlBlock *acb)
424 {
425 	u_int32_t Index;
426 	u_int8_t Retries = 0x00;
427 
428 	do {
429 		for(Index=0; Index < 100; Index++) {
430 			if(CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE) {
431 				CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE_CLEAR);/*clear interrupt*/
432 				return TRUE;
433 			}
434 			UDELAY(10000);
435 		}/*max 1 seconds*/
436 	}while(Retries++ < 20);/*max 20 sec*/
437 	return (FALSE);
438 }
439 /*
440 **********************************************************************
441 **********************************************************************
442 */
443 static u_int8_t arcmsr_hbe_wait_msgint_ready(struct AdapterControlBlock *acb)
444 {
445 	u_int32_t Index, read_doorbell;
446 	u_int8_t Retries = 0x00;
447 
448 	do {
449 		for(Index=0; Index < 100; Index++) {
450 			read_doorbell = CHIP_REG_READ32(HBE_MessageUnit, 0, iobound_doorbell);
451 			if((read_doorbell ^ acb->in_doorbell) & ARCMSR_HBEMU_IOP2DRV_MESSAGE_CMD_DONE) {
452 				CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_status, 0);/*clear interrupt*/
453 				acb->in_doorbell = read_doorbell;
454 				return TRUE;
455 			}
456 			UDELAY(10000);
457 		}/*max 1 seconds*/
458 	}while(Retries++ < 20);/*max 20 sec*/
459 	return (FALSE);
460 }
461 /*
462 ************************************************************************
463 ************************************************************************
464 */
465 static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb)
466 {
467 	int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
468 
469 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_FLUSH_CACHE);
470 	do {
471 		if(arcmsr_hba_wait_msgint_ready(acb)) {
472 			break;
473 		} else {
474 			retry_count--;
475 		}
476 	}while(retry_count != 0);
477 }
478 /*
479 ************************************************************************
480 ************************************************************************
481 */
482 static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb)
483 {
484 	int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
485 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
486 
487 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_FLUSH_CACHE);
488 	do {
489 		if(arcmsr_hbb_wait_msgint_ready(acb)) {
490 			break;
491 		} else {
492 			retry_count--;
493 		}
494 	}while(retry_count != 0);
495 }
496 /*
497 ************************************************************************
498 ************************************************************************
499 */
500 static void arcmsr_flush_hbc_cache(struct AdapterControlBlock *acb)
501 {
502 	int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
503 
504 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_FLUSH_CACHE);
505 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
506 	do {
507 		if(arcmsr_hbc_wait_msgint_ready(acb)) {
508 			break;
509 		} else {
510 			retry_count--;
511 		}
512 	}while(retry_count != 0);
513 }
514 /*
515 ************************************************************************
516 ************************************************************************
517 */
518 static void arcmsr_flush_hbd_cache(struct AdapterControlBlock *acb)
519 {
520 	int retry_count = 30; /* enlarge wait flush adapter cache time: 10 minute */
521 
522 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_FLUSH_CACHE);
523 	do {
524 		if(arcmsr_hbd_wait_msgint_ready(acb)) {
525 			break;
526 		} else {
527 			retry_count--;
528 		}
529 	}while(retry_count != 0);
530 }
531 /*
532 ************************************************************************
533 ************************************************************************
534 */
535 static void arcmsr_flush_hbe_cache(struct AdapterControlBlock *acb)
536 {
537 	int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
538 
539 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_FLUSH_CACHE);
540 	acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
541 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
542 	do {
543 		if(arcmsr_hbe_wait_msgint_ready(acb)) {
544 			break;
545 		} else {
546 			retry_count--;
547 		}
548 	}while(retry_count != 0);
549 }
550 /*
551 ************************************************************************
552 ************************************************************************
553 */
554 static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb)
555 {
556 	switch (acb->adapter_type) {
557 	case ACB_ADAPTER_TYPE_A: {
558 			arcmsr_flush_hba_cache(acb);
559 		}
560 		break;
561 	case ACB_ADAPTER_TYPE_B: {
562 			arcmsr_flush_hbb_cache(acb);
563 		}
564 		break;
565 	case ACB_ADAPTER_TYPE_C: {
566 			arcmsr_flush_hbc_cache(acb);
567 		}
568 		break;
569 	case ACB_ADAPTER_TYPE_D: {
570 			arcmsr_flush_hbd_cache(acb);
571 		}
572 		break;
573 	case ACB_ADAPTER_TYPE_E:
574 	case ACB_ADAPTER_TYPE_F: {
575 			arcmsr_flush_hbe_cache(acb);
576 		}
577 		break;
578 	}
579 }
580 /*
581 *******************************************************************************
582 *******************************************************************************
583 */
584 static int arcmsr_suspend(device_t dev)
585 {
586 	struct AdapterControlBlock	*acb = device_get_softc(dev);
587 
588 	/* flush controller */
589 	arcmsr_iop_parking(acb);
590 	/* disable all outbound interrupt */
591 	arcmsr_disable_allintr(acb);
592 	return(0);
593 }
594 /*
595 *******************************************************************************
596 *******************************************************************************
597 */
598 static int arcmsr_resume(device_t dev)
599 {
600 	struct AdapterControlBlock	*acb = device_get_softc(dev);
601 
602 	arcmsr_iop_init(acb);
603 	return(0);
604 }
605 /*
606 *********************************************************************************
607 *********************************************************************************
608 */
609 static void arcmsr_async(void *cb_arg, u_int32_t code, struct cam_path *path, void *arg)
610 {
611 	u_int8_t target_id, target_lun;
612 
613 	switch (code) {
614 	case AC_LOST_DEVICE:
615 		target_id = xpt_path_target_id(path);
616 		target_lun = xpt_path_lun_id(path);
617 		if((target_id > ARCMSR_MAX_TARGETID) || (target_lun > ARCMSR_MAX_TARGETLUN)) {
618 			break;
619 		}
620 		break;
621 	default:
622 		break;
623 	}
624 }
625 /*
626 **********************************************************************
627 **********************************************************************
628 */
629 static void arcmsr_report_sense_info(struct CommandControlBlock *srb)
630 {
631 	union ccb *pccb = srb->pccb;
632 
633 	pccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
634 	pccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
635 	if(pccb->csio.sense_len) {
636 		memset(&pccb->csio.sense_data, 0, sizeof(pccb->csio.sense_data));
637 		memcpy(&pccb->csio.sense_data, srb->arcmsr_cdb.SenseData,
638 		get_min(sizeof(struct SENSE_DATA), sizeof(pccb->csio.sense_data)));
639 		((u_int8_t *)&pccb->csio.sense_data)[0] = (0x1 << 7 | 0x70); /* Valid,ErrorCode */
640 		pccb->ccb_h.status |= CAM_AUTOSNS_VALID;
641 	}
642 }
643 /*
644 *********************************************************************
645 *********************************************************************
646 */
647 static void arcmsr_abort_hba_allcmd(struct AdapterControlBlock *acb)
648 {
649 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_ABORT_CMD);
650 	if(!arcmsr_hba_wait_msgint_ready(acb)) {
651 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
652 	}
653 }
654 /*
655 *********************************************************************
656 *********************************************************************
657 */
658 static void arcmsr_abort_hbb_allcmd(struct AdapterControlBlock *acb)
659 {
660 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
661 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_ABORT_CMD);
662 	if(!arcmsr_hbb_wait_msgint_ready(acb)) {
663 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
664 	}
665 }
666 /*
667 *********************************************************************
668 *********************************************************************
669 */
670 static void arcmsr_abort_hbc_allcmd(struct AdapterControlBlock *acb)
671 {
672 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_ABORT_CMD);
673 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
674 	if(!arcmsr_hbc_wait_msgint_ready(acb)) {
675 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
676 	}
677 }
678 /*
679 *********************************************************************
680 *********************************************************************
681 */
682 static void arcmsr_abort_hbd_allcmd(struct AdapterControlBlock *acb)
683 {
684 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_ABORT_CMD);
685 	if(!arcmsr_hbd_wait_msgint_ready(acb)) {
686 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
687 	}
688 }
689 /*
690 *********************************************************************
691 *********************************************************************
692 */
693 static void arcmsr_abort_hbe_allcmd(struct AdapterControlBlock *acb)
694 {
695 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_ABORT_CMD);
696 	acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
697 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
698 	if(!arcmsr_hbe_wait_msgint_ready(acb)) {
699 		printf("arcmsr%d: wait 'abort all outstanding command' timeout \n", acb->pci_unit);
700 	}
701 }
702 /*
703 *********************************************************************
704 *********************************************************************
705 */
706 static void arcmsr_abort_allcmd(struct AdapterControlBlock *acb)
707 {
708 	switch (acb->adapter_type) {
709 	case ACB_ADAPTER_TYPE_A: {
710 			arcmsr_abort_hba_allcmd(acb);
711 		}
712 		break;
713 	case ACB_ADAPTER_TYPE_B: {
714 			arcmsr_abort_hbb_allcmd(acb);
715 		}
716 		break;
717 	case ACB_ADAPTER_TYPE_C: {
718 			arcmsr_abort_hbc_allcmd(acb);
719 		}
720 		break;
721 	case ACB_ADAPTER_TYPE_D: {
722 			arcmsr_abort_hbd_allcmd(acb);
723 		}
724 		break;
725 	case ACB_ADAPTER_TYPE_E:
726 	case ACB_ADAPTER_TYPE_F: {
727 			arcmsr_abort_hbe_allcmd(acb);
728 		}
729 		break;
730 	}
731 }
732 /*
733 **********************************************************************
734 **********************************************************************
735 */
736 static void arcmsr_srb_complete(struct CommandControlBlock *srb, int stand_flag)
737 {
738 	struct AdapterControlBlock *acb = srb->acb;
739 	union ccb *pccb = srb->pccb;
740 
741 	if(srb->srb_flags & SRB_FLAG_TIMER_START)
742 		callout_stop(&srb->ccb_callout);
743 	if((pccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
744 		bus_dmasync_op_t op;
745 
746 		if((pccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
747 			op = BUS_DMASYNC_POSTREAD;
748 		} else {
749 			op = BUS_DMASYNC_POSTWRITE;
750 		}
751 		bus_dmamap_sync(acb->dm_segs_dmat, srb->dm_segs_dmamap, op);
752 		bus_dmamap_unload(acb->dm_segs_dmat, srb->dm_segs_dmamap);
753 	}
754 	if(stand_flag == 1) {
755 		atomic_subtract_int(&acb->srboutstandingcount, 1);
756 		if((acb->acb_flags & ACB_F_CAM_DEV_QFRZN) && (
757 		acb->srboutstandingcount < (acb->maxOutstanding -10))) {
758 			acb->acb_flags &= ~ACB_F_CAM_DEV_QFRZN;
759 			pccb->ccb_h.status |= CAM_RELEASE_SIMQ;
760 		}
761 	}
762 	if(srb->srb_state != ARCMSR_SRB_TIMEOUT)
763 		arcmsr_free_srb(srb);
764 	acb->pktReturnCount++;
765 	xpt_done(pccb);
766 }
767 /*
768 **************************************************************************
769 **************************************************************************
770 */
771 static void arcmsr_report_srb_state(struct AdapterControlBlock *acb, struct CommandControlBlock *srb, u_int16_t error)
772 {
773 	int target, lun;
774 
775 	target = srb->pccb->ccb_h.target_id;
776 	lun = srb->pccb->ccb_h.target_lun;
777 	if(error == FALSE) {
778 		if(acb->devstate[target][lun] == ARECA_RAID_GONE) {
779 			acb->devstate[target][lun] = ARECA_RAID_GOOD;
780 		}
781 		srb->pccb->ccb_h.status |= CAM_REQ_CMP;
782 		arcmsr_srb_complete(srb, 1);
783 	} else {
784 		switch(srb->arcmsr_cdb.DeviceStatus) {
785 		case ARCMSR_DEV_SELECT_TIMEOUT: {
786 				if(acb->devstate[target][lun] == ARECA_RAID_GOOD) {
787 					printf( "arcmsr%d: Target=%x, Lun=%x, selection timeout, raid volume was lost\n", acb->pci_unit, target, lun);
788 				}
789 				acb->devstate[target][lun] = ARECA_RAID_GONE;
790 				srb->pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
791 				arcmsr_srb_complete(srb, 1);
792 			}
793 			break;
794 		case ARCMSR_DEV_ABORTED:
795 		case ARCMSR_DEV_INIT_FAIL: {
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 SCSISTAT_CHECK_CONDITION: {
802 				acb->devstate[target][lun] = ARECA_RAID_GOOD;
803 				arcmsr_report_sense_info(srb);
804 				arcmsr_srb_complete(srb, 1);
805 			}
806 			break;
807 		default:
808 			printf("arcmsr%d: scsi id=%d lun=%d isr got command error done,but got unknown DeviceStatus=0x%x \n"
809 					, acb->pci_unit, target, lun ,srb->arcmsr_cdb.DeviceStatus);
810 			acb->devstate[target][lun] = ARECA_RAID_GONE;
811 			srb->pccb->ccb_h.status |= CAM_UNCOR_PARITY;
812 			/*unknown error or crc error just for retry*/
813 			arcmsr_srb_complete(srb, 1);
814 			break;
815 		}
816 	}
817 }
818 /*
819 **************************************************************************
820 **************************************************************************
821 */
822 static void arcmsr_drain_donequeue(struct AdapterControlBlock *acb, u_int32_t flag_srb, u_int16_t error)
823 {
824 	struct CommandControlBlock *srb;
825 
826 	/* check if command done with no error*/
827 	switch (acb->adapter_type) {
828 	case ACB_ADAPTER_TYPE_A:
829 	case ACB_ADAPTER_TYPE_B:
830 		srb = (struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb << 5));/*frame must be 32 bytes aligned*/
831 		break;
832 	case ACB_ADAPTER_TYPE_C:
833 	case ACB_ADAPTER_TYPE_D:
834 		srb = (struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb & 0xFFFFFFE0)); /*frame must be 32 bytes aligned*/
835 		break;
836 	case ACB_ADAPTER_TYPE_E:
837 	case ACB_ADAPTER_TYPE_F:
838 		srb = acb->psrb_pool[flag_srb];
839 		break;
840 	default:
841 		srb = (struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb << 5));/*frame must be 32 bytes aligned*/
842 		break;
843 	}
844 	if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
845 		if(srb->srb_state == ARCMSR_SRB_TIMEOUT) {
846 			arcmsr_free_srb(srb);
847 			printf("arcmsr%d: srb='%p' return srb has been timeouted\n", acb->pci_unit, srb);
848 			return;
849 		}
850 		printf("arcmsr%d: return srb has been completed\n"
851 			"srb='%p' srb_state=0x%x outstanding srb count=%d \n",
852 			acb->pci_unit, srb, srb->srb_state, acb->srboutstandingcount);
853 		return;
854 	}
855 	arcmsr_report_srb_state(acb, srb, error);
856 }
857 /*
858 **************************************************************************
859 **************************************************************************
860 */
861 static void	arcmsr_srb_timeout(void *arg)
862 {
863 	struct CommandControlBlock *srb = (struct CommandControlBlock *)arg;
864 	struct AdapterControlBlock *acb;
865 	int target, lun;
866 	u_int8_t cmd;
867 
868 	target = srb->pccb->ccb_h.target_id;
869 	lun = srb->pccb->ccb_h.target_lun;
870 	acb = srb->acb;
871 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
872 	if(srb->srb_state == ARCMSR_SRB_START)
873 	{
874 		cmd = scsiio_cdb_ptr(&srb->pccb->csio)[0];
875 		srb->srb_state = ARCMSR_SRB_TIMEOUT;
876 		srb->pccb->ccb_h.status |= CAM_CMD_TIMEOUT;
877 		arcmsr_srb_complete(srb, 1);
878 		printf("arcmsr%d: scsi id %d lun %d cmd=0x%x srb='%p' ccb command time out!\n",
879 				 acb->pci_unit, target, lun, cmd, srb);
880 	}
881 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
882 #ifdef ARCMSR_DEBUG1
883 	arcmsr_dump_data(acb);
884 #endif
885 }
886 
887 /*
888 **********************************************************************
889 **********************************************************************
890 */
891 static void arcmsr_done4abort_postqueue(struct AdapterControlBlock *acb)
892 {
893 	int i=0;
894 	u_int32_t flag_srb;
895 	u_int16_t error;
896 
897 	switch (acb->adapter_type) {
898 	case ACB_ADAPTER_TYPE_A: {
899 			u_int32_t outbound_intstatus;
900 
901 			/*clear and abort all outbound posted Q*/
902 			outbound_intstatus = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intstatus) & acb->outbound_int_enable;
903 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, outbound_intstatus);/*clear interrupt*/
904 			while(((flag_srb=CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_queueport)) != 0xFFFFFFFF) && (i++ < ARCMSR_MAX_OUTSTANDING_CMD)) {
905 				error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0)?TRUE:FALSE;
906 				arcmsr_drain_donequeue(acb, flag_srb, error);
907 			}
908 		}
909 		break;
910 	case ACB_ADAPTER_TYPE_B: {
911 			struct HBB_MessageUnit *phbbmu=(struct HBB_MessageUnit *)acb->pmu;
912 
913 			/*clear all outbound posted Q*/
914 			WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_DOORBELL_INT_CLEAR_PATTERN); /* clear doorbell interrupt */
915 			for(i=0; i < ARCMSR_MAX_HBB_POSTQUEUE; i++) {
916 				if((flag_srb = phbbmu->done_qbuffer[i]) != 0) {
917 					phbbmu->done_qbuffer[i] = 0;
918 					error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0)?TRUE:FALSE;
919 					arcmsr_drain_donequeue(acb, flag_srb, error);
920 				}
921 				phbbmu->post_qbuffer[i] = 0;
922 			}/*drain reply FIFO*/
923 			phbbmu->doneq_index = 0;
924 			phbbmu->postq_index = 0;
925 		}
926 		break;
927 	case ACB_ADAPTER_TYPE_C: {
928 			while((CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) && (i++ < ARCMSR_MAX_OUTSTANDING_CMD)) {
929 				flag_srb = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_queueport_low);
930 				error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1) ? TRUE : FALSE;
931 				arcmsr_drain_donequeue(acb, flag_srb, error);
932 			}
933 		}
934 		break;
935 	case ACB_ADAPTER_TYPE_D:
936 		arcmsr_hbd_postqueue_isr(acb);
937 		break;
938 	case ACB_ADAPTER_TYPE_E:
939 		arcmsr_hbe_postqueue_isr(acb);
940 		break;
941 	case ACB_ADAPTER_TYPE_F:
942 		arcmsr_hbf_postqueue_isr(acb);
943 		break;
944 	}
945 }
946 /*
947 ****************************************************************************
948 ****************************************************************************
949 */
950 static void arcmsr_iop_reset(struct AdapterControlBlock *acb)
951 {
952 	struct CommandControlBlock *srb;
953 	u_int32_t intmask_org;
954 	u_int32_t i=0;
955 
956 	if(acb->srboutstandingcount>0) {
957 		/* disable all outbound interrupt */
958 		intmask_org = arcmsr_disable_allintr(acb);
959 		/*clear and abort all outbound posted Q*/
960 		arcmsr_done4abort_postqueue(acb);
961 		/* talk to iop 331 outstanding command aborted*/
962 		arcmsr_abort_allcmd(acb);
963 		for(i=0; i < ARCMSR_MAX_FREESRB_NUM; i++) {
964 			srb = acb->psrb_pool[i];
965 			if(srb->srb_state == ARCMSR_SRB_START) {
966 				srb->srb_state = ARCMSR_SRB_ABORTED;
967 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
968 				arcmsr_srb_complete(srb, 1);
969 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p' aborted\n"
970 						, acb->pci_unit, srb->pccb->ccb_h.target_id
971 						, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
972 			}
973 		}
974 		/* enable all outbound interrupt */
975 		arcmsr_enable_allintr(acb, intmask_org);
976 	}
977 	acb->srboutstandingcount = 0;
978 	acb->workingsrb_doneindex = 0;
979 	acb->workingsrb_startindex = 0;
980 	acb->pktRequestCount = 0;
981 	acb->pktReturnCount = 0;
982 }
983 /*
984 **********************************************************************
985 **********************************************************************
986 */
987 static void arcmsr_build_srb(struct CommandControlBlock *srb,
988 		bus_dma_segment_t *dm_segs, u_int32_t nseg)
989 {
990 	struct ARCMSR_CDB *arcmsr_cdb = &srb->arcmsr_cdb;
991 	u_int8_t *psge = (u_int8_t *)&arcmsr_cdb->u;
992 	u_int32_t address_lo, address_hi;
993 	union ccb *pccb = srb->pccb;
994 	struct ccb_scsiio *pcsio = &pccb->csio;
995 	u_int32_t arccdbsize = 0x30;
996 
997 	memset(arcmsr_cdb, 0, sizeof(struct ARCMSR_CDB));
998 	arcmsr_cdb->Bus = 0;
999 	arcmsr_cdb->TargetID = pccb->ccb_h.target_id;
1000 	arcmsr_cdb->LUN = pccb->ccb_h.target_lun;
1001 	arcmsr_cdb->Function = 1;
1002 	arcmsr_cdb->CdbLength = (u_int8_t)pcsio->cdb_len;
1003 	bcopy(scsiio_cdb_ptr(pcsio), arcmsr_cdb->Cdb, pcsio->cdb_len);
1004 	if(nseg != 0) {
1005 		struct AdapterControlBlock *acb = srb->acb;
1006 		bus_dmasync_op_t op;
1007 		u_int32_t length, i, cdb_sgcount = 0;
1008 
1009 		if((pccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1010 			op = BUS_DMASYNC_PREREAD;
1011 		} else {
1012 			op = BUS_DMASYNC_PREWRITE;
1013 			arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_WRITE;
1014 			srb->srb_flags |= SRB_FLAG_WRITE;
1015 		}
1016 		bus_dmamap_sync(acb->dm_segs_dmat, srb->dm_segs_dmamap, op);
1017 		for(i=0; i < nseg; i++) {
1018 			/* Get the physical address of the current data pointer */
1019 			length = arcmsr_htole32(dm_segs[i].ds_len);
1020 			address_lo = arcmsr_htole32(dma_addr_lo32(dm_segs[i].ds_addr));
1021 			address_hi = arcmsr_htole32(dma_addr_hi32(dm_segs[i].ds_addr));
1022 			if(address_hi == 0) {
1023 				struct SG32ENTRY *pdma_sg = (struct SG32ENTRY *)psge;
1024 				pdma_sg->address = address_lo;
1025 				pdma_sg->length = length;
1026 				psge += sizeof(struct SG32ENTRY);
1027 				arccdbsize += sizeof(struct SG32ENTRY);
1028 			} else {
1029 				u_int32_t sg64s_size = 0, tmplength = length;
1030 
1031 				while(1) {
1032 					u_int64_t span4G, length0;
1033 					struct SG64ENTRY *pdma_sg = (struct SG64ENTRY *)psge;
1034 
1035 					span4G = (u_int64_t)address_lo + tmplength;
1036 					pdma_sg->addresshigh = address_hi;
1037 					pdma_sg->address = address_lo;
1038 					if(span4G > 0x100000000) {
1039 						/*see if cross 4G boundary*/
1040 						length0 = 0x100000000-address_lo;
1041 						pdma_sg->length = (u_int32_t)length0 | IS_SG64_ADDR;
1042 						address_hi = address_hi+1;
1043 						address_lo = 0;
1044 						tmplength = tmplength - (u_int32_t)length0;
1045 						sg64s_size += sizeof(struct SG64ENTRY);
1046 						psge += sizeof(struct SG64ENTRY);
1047 						cdb_sgcount++;
1048 					} else {
1049 						pdma_sg->length = tmplength | IS_SG64_ADDR;
1050 						sg64s_size += sizeof(struct SG64ENTRY);
1051 						psge += sizeof(struct SG64ENTRY);
1052 						break;
1053 					}
1054 				}
1055 				arccdbsize += sg64s_size;
1056 			}
1057 			cdb_sgcount++;
1058 		}
1059 		arcmsr_cdb->sgcount = (u_int8_t)cdb_sgcount;
1060 		arcmsr_cdb->DataLength = pcsio->dxfer_len;
1061 		if( arccdbsize > 256) {
1062 			arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_SGL_BSIZE;
1063 		}
1064 	} else {
1065 		arcmsr_cdb->DataLength = 0;
1066 	}
1067 	srb->arc_cdb_size = arccdbsize;
1068 	arcmsr_cdb->msgPages = (arccdbsize/256) + ((arccdbsize % 256) ? 1 : 0);
1069 }
1070 /*
1071 **************************************************************************
1072 **************************************************************************
1073 */
1074 static void arcmsr_post_srb(struct AdapterControlBlock *acb, struct CommandControlBlock *srb)
1075 {
1076 	u_int32_t cdb_phyaddr_low = (u_int32_t) srb->cdb_phyaddr;
1077 	struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&srb->arcmsr_cdb;
1078 
1079 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, (srb->srb_flags & SRB_FLAG_WRITE) ? BUS_DMASYNC_POSTWRITE:BUS_DMASYNC_POSTREAD);
1080 	atomic_add_int(&acb->srboutstandingcount, 1);
1081 	srb->srb_state = ARCMSR_SRB_START;
1082 
1083 	switch (acb->adapter_type) {
1084 	case ACB_ADAPTER_TYPE_A: {
1085 			if(arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) {
1086 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_queueport, cdb_phyaddr_low|ARCMSR_SRBPOST_FLAG_SGL_BSIZE);
1087 			} else {
1088 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_queueport, cdb_phyaddr_low);
1089 			}
1090 		}
1091 		break;
1092 	case ACB_ADAPTER_TYPE_B: {
1093 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1094 			int ending_index, index;
1095 
1096 			index = phbbmu->postq_index;
1097 			ending_index = ((index+1) % ARCMSR_MAX_HBB_POSTQUEUE);
1098 			phbbmu->post_qbuffer[ending_index] = 0;
1099 			if(arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) {
1100 				phbbmu->post_qbuffer[index] = cdb_phyaddr_low | ARCMSR_SRBPOST_FLAG_SGL_BSIZE;
1101 			} else {
1102 				phbbmu->post_qbuffer[index] = cdb_phyaddr_low;
1103 			}
1104 			index++;
1105 			index %= ARCMSR_MAX_HBB_POSTQUEUE;     /*if last index number set it to 0 */
1106 			phbbmu->postq_index = index;
1107 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_CDB_POSTED);
1108 		}
1109 		break;
1110 	case ACB_ADAPTER_TYPE_C: {
1111 			u_int32_t ccb_post_stamp, arc_cdb_size, cdb_phyaddr_hi32;
1112 
1113 			arc_cdb_size = (srb->arc_cdb_size > 0x300) ? 0x300 : srb->arc_cdb_size;
1114 			ccb_post_stamp = (cdb_phyaddr_low | ((arc_cdb_size-1) >> 6) | 1);
1115 			cdb_phyaddr_hi32 = acb->srb_phyaddr.B.phyadd_high;
1116 			if(cdb_phyaddr_hi32)
1117 			{
1118 				CHIP_REG_WRITE32(HBC_MessageUnit,0,inbound_queueport_high, cdb_phyaddr_hi32);
1119 				CHIP_REG_WRITE32(HBC_MessageUnit,0,inbound_queueport_low, ccb_post_stamp);
1120 			}
1121 			else
1122 			{
1123 				CHIP_REG_WRITE32(HBC_MessageUnit,0,inbound_queueport_low, ccb_post_stamp);
1124 			}
1125 		}
1126 		break;
1127 	case ACB_ADAPTER_TYPE_D: {
1128 			struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
1129 			u_int16_t index_stripped;
1130 			u_int16_t postq_index;
1131 			struct InBound_SRB *pinbound_srb;
1132 
1133 			ARCMSR_LOCK_ACQUIRE(&acb->postDone_lock);
1134 			postq_index = phbdmu->postq_index;
1135 			pinbound_srb = (struct InBound_SRB *)&phbdmu->post_qbuffer[postq_index & 0xFF];
1136 			pinbound_srb->addressHigh = (u_int32_t)((srb->cdb_phyaddr >> 16) >> 16);
1137 			pinbound_srb->addressLow = (u_int32_t)srb->cdb_phyaddr;
1138 			pinbound_srb->length = srb->arc_cdb_size >> 2;
1139 			arcmsr_cdb->Context = (u_int32_t)srb->cdb_phyaddr;
1140 			if (postq_index & 0x4000) {
1141 				index_stripped = postq_index & 0xFF;
1142 				index_stripped += 1;
1143 				index_stripped %= ARCMSR_MAX_HBD_POSTQUEUE;
1144 				phbdmu->postq_index = index_stripped ? (index_stripped | 0x4000) : index_stripped;
1145 			} else {
1146 				index_stripped = postq_index;
1147 				index_stripped += 1;
1148 				index_stripped %= ARCMSR_MAX_HBD_POSTQUEUE;
1149 				phbdmu->postq_index = index_stripped ? index_stripped : (index_stripped | 0x4000);
1150 			}
1151 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inboundlist_write_pointer, postq_index);
1152 			ARCMSR_LOCK_RELEASE(&acb->postDone_lock);
1153 		}
1154 		break;
1155 	case ACB_ADAPTER_TYPE_E: {
1156 			u_int32_t ccb_post_stamp, arc_cdb_size;
1157 
1158 			arc_cdb_size = (srb->arc_cdb_size > 0x300) ? 0x300 : srb->arc_cdb_size;
1159 			ccb_post_stamp = (srb->smid | ((arc_cdb_size-1) >> 6));
1160 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_queueport_high, 0);
1161 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_queueport_low, ccb_post_stamp);
1162 		}
1163 		break;
1164 	case ACB_ADAPTER_TYPE_F: {
1165 			u_int32_t ccb_post_stamp, arc_cdb_size;
1166 
1167 			if (srb->arc_cdb_size <= 0x300)
1168 				arc_cdb_size = (srb->arc_cdb_size - 1) >> 6 | 1;
1169 			else {
1170 				arc_cdb_size = ((srb->arc_cdb_size + 0xff) >> 8) + 2;
1171 				if (arc_cdb_size > 0xF)
1172 					arc_cdb_size = 0xF;
1173 				arc_cdb_size = (arc_cdb_size << 1) | 1;
1174 			}
1175 			ccb_post_stamp = (srb->smid | arc_cdb_size);
1176 			CHIP_REG_WRITE32(HBF_MessageUnit, 0, inbound_queueport_high, 0);
1177 			CHIP_REG_WRITE32(HBF_MessageUnit, 0, inbound_queueport_low, ccb_post_stamp);
1178 		}
1179 		break;
1180 	}
1181 }
1182 /*
1183 ************************************************************************
1184 ************************************************************************
1185 */
1186 static struct QBUFFER *arcmsr_get_iop_rqbuffer( struct AdapterControlBlock *acb)
1187 {
1188 	struct QBUFFER *qbuffer=NULL;
1189 
1190 	switch (acb->adapter_type) {
1191 	case ACB_ADAPTER_TYPE_A: {
1192 			struct HBA_MessageUnit *phbamu = (struct HBA_MessageUnit *)acb->pmu;
1193 
1194 			qbuffer = (struct QBUFFER *)&phbamu->message_rbuffer;
1195 		}
1196 		break;
1197 	case ACB_ADAPTER_TYPE_B: {
1198 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1199 
1200 			qbuffer = (struct QBUFFER *)&phbbmu->hbb_rwbuffer->message_rbuffer;
1201 		}
1202 		break;
1203 	case ACB_ADAPTER_TYPE_C: {
1204 			struct HBC_MessageUnit *phbcmu = (struct HBC_MessageUnit *)acb->pmu;
1205 
1206 			qbuffer = (struct QBUFFER *)&phbcmu->message_rbuffer;
1207 		}
1208 		break;
1209 	case ACB_ADAPTER_TYPE_D: {
1210 			struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
1211 
1212 			qbuffer = (struct QBUFFER *)&phbdmu->phbdmu->message_rbuffer;
1213 		}
1214 		break;
1215 	case ACB_ADAPTER_TYPE_E: {
1216 			struct HBE_MessageUnit *phbcmu = (struct HBE_MessageUnit *)acb->pmu;
1217 
1218 			qbuffer = (struct QBUFFER *)&phbcmu->message_rbuffer;
1219 		}
1220 		break;
1221 	case ACB_ADAPTER_TYPE_F:
1222 		qbuffer = (struct QBUFFER *)acb->message_rbuffer;
1223 		break;
1224 	}
1225 	return(qbuffer);
1226 }
1227 /*
1228 ************************************************************************
1229 ************************************************************************
1230 */
1231 static struct QBUFFER *arcmsr_get_iop_wqbuffer( struct AdapterControlBlock *acb)
1232 {
1233 	struct QBUFFER *qbuffer = NULL;
1234 
1235 	switch (acb->adapter_type) {
1236 	case ACB_ADAPTER_TYPE_A: {
1237 			struct HBA_MessageUnit *phbamu = (struct HBA_MessageUnit *)acb->pmu;
1238 
1239 			qbuffer = (struct QBUFFER *)&phbamu->message_wbuffer;
1240 		}
1241 		break;
1242 	case ACB_ADAPTER_TYPE_B: {
1243 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1244 
1245 			qbuffer = (struct QBUFFER *)&phbbmu->hbb_rwbuffer->message_wbuffer;
1246 		}
1247 		break;
1248 	case ACB_ADAPTER_TYPE_C: {
1249 			struct HBC_MessageUnit *phbcmu = (struct HBC_MessageUnit *)acb->pmu;
1250 
1251 			qbuffer = (struct QBUFFER *)&phbcmu->message_wbuffer;
1252 		}
1253 		break;
1254 	case ACB_ADAPTER_TYPE_D: {
1255 			struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
1256 
1257 			qbuffer = (struct QBUFFER *)&phbdmu->phbdmu->message_wbuffer;
1258 		}
1259 		break;
1260 	case ACB_ADAPTER_TYPE_E: {
1261 			struct HBE_MessageUnit *phbcmu = (struct HBE_MessageUnit *)acb->pmu;
1262 
1263 			qbuffer = (struct QBUFFER *)&phbcmu->message_wbuffer;
1264 		}
1265 		break;
1266 	case ACB_ADAPTER_TYPE_F:
1267 		qbuffer = (struct QBUFFER *)acb->message_wbuffer;
1268 		break;
1269 	}
1270 	return(qbuffer);
1271 }
1272 /*
1273 **************************************************************************
1274 **************************************************************************
1275 */
1276 static void arcmsr_iop_message_read(struct AdapterControlBlock *acb)
1277 {
1278 	switch (acb->adapter_type) {
1279 	case ACB_ADAPTER_TYPE_A: {
1280 			/* let IOP know data has been read */
1281 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_READ_OK);
1282 		}
1283 		break;
1284 	case ACB_ADAPTER_TYPE_B: {
1285 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1286 			/* let IOP know data has been read */
1287 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_DATA_READ_OK);
1288 		}
1289 		break;
1290 	case ACB_ADAPTER_TYPE_C: {
1291 			/* let IOP know data has been read */
1292 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK);
1293 		}
1294 		break;
1295 	case ACB_ADAPTER_TYPE_D: {
1296 			/* let IOP know data has been read */
1297 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_doorbell, ARCMSR_HBDMU_DRV2IOP_DATA_OUT_READ);
1298 		}
1299 		break;
1300 	case ACB_ADAPTER_TYPE_E:
1301 	case ACB_ADAPTER_TYPE_F: {
1302 			/* let IOP know data has been read */
1303 			acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_READ_OK;
1304 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
1305 		}
1306 		break;
1307 	}
1308 }
1309 /*
1310 **************************************************************************
1311 **************************************************************************
1312 */
1313 static void arcmsr_iop_message_wrote(struct AdapterControlBlock *acb)
1314 {
1315 	switch (acb->adapter_type) {
1316 	case ACB_ADAPTER_TYPE_A: {
1317 			/*
1318 			** push inbound doorbell tell iop, driver data write ok
1319 			** and wait reply on next hwinterrupt for next Qbuffer post
1320 			*/
1321 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK);
1322 		}
1323 		break;
1324 	case ACB_ADAPTER_TYPE_B: {
1325 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1326 			/*
1327 			** push inbound doorbell tell iop, driver data write ok
1328 			** and wait reply on next hwinterrupt for next Qbuffer post
1329 			*/
1330 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_DATA_WRITE_OK);
1331 		}
1332 		break;
1333 	case ACB_ADAPTER_TYPE_C: {
1334 			/*
1335 			** push inbound doorbell tell iop, driver data write ok
1336 			** and wait reply on next hwinterrupt for next Qbuffer post
1337 			*/
1338 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_DATA_WRITE_OK);
1339 		}
1340 		break;
1341 	case ACB_ADAPTER_TYPE_D: {
1342 			/*
1343 			** push inbound doorbell tell iop, driver data write ok
1344 			** and wait reply on next hwinterrupt for next Qbuffer post
1345 			*/
1346 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_doorbell, ARCMSR_HBDMU_DRV2IOP_DATA_IN_READY);
1347 		}
1348 		break;
1349 	case ACB_ADAPTER_TYPE_E:
1350 	case ACB_ADAPTER_TYPE_F: {
1351 			/*
1352 			** push inbound doorbell tell iop, driver data write ok
1353 			** and wait reply on next hwinterrupt for next Qbuffer post
1354 			*/
1355 			acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_WRITE_OK;
1356 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
1357 		}
1358 		break;
1359 	}
1360 }
1361 /*
1362 ************************************************************************
1363 ************************************************************************
1364 */
1365 static void arcmsr_stop_hba_bgrb(struct AdapterControlBlock *acb)
1366 {
1367 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1368 	CHIP_REG_WRITE32(HBA_MessageUnit,
1369 		0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_STOP_BGRB);
1370 	if(!arcmsr_hba_wait_msgint_ready(acb)) {
1371 		printf("arcmsr%d: wait 'stop adapter background rebuild' timeout \n"
1372 			, acb->pci_unit);
1373 	}
1374 }
1375 /*
1376 ************************************************************************
1377 ************************************************************************
1378 */
1379 static void arcmsr_stop_hbb_bgrb(struct AdapterControlBlock *acb)
1380 {
1381 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1382 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1383 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_STOP_BGRB);
1384 	if(!arcmsr_hbb_wait_msgint_ready(acb)) {
1385 		printf( "arcmsr%d: wait 'stop adapter background rebuild' timeout \n"
1386 			, acb->pci_unit);
1387 	}
1388 }
1389 /*
1390 ************************************************************************
1391 ************************************************************************
1392 */
1393 static void arcmsr_stop_hbc_bgrb(struct AdapterControlBlock *acb)
1394 {
1395 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1396 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_STOP_BGRB);
1397 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell,ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
1398 	if(!arcmsr_hbc_wait_msgint_ready(acb)) {
1399 		printf("arcmsr%d: wait 'stop adapter background rebuild' timeout \n", acb->pci_unit);
1400 	}
1401 }
1402 /*
1403 ************************************************************************
1404 ************************************************************************
1405 */
1406 static void arcmsr_stop_hbd_bgrb(struct AdapterControlBlock *acb)
1407 {
1408 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1409 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_STOP_BGRB);
1410 	if(!arcmsr_hbd_wait_msgint_ready(acb)) {
1411 		printf("arcmsr%d: wait 'stop adapter background rebuild' timeout \n", acb->pci_unit);
1412 	}
1413 }
1414 /*
1415 ************************************************************************
1416 ************************************************************************
1417 */
1418 static void arcmsr_stop_hbe_bgrb(struct AdapterControlBlock *acb)
1419 {
1420 	acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1421 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_STOP_BGRB);
1422 	acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
1423 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
1424 	if(!arcmsr_hbe_wait_msgint_ready(acb)) {
1425 		printf("arcmsr%d: wait 'stop adapter background rebuild' timeout \n", acb->pci_unit);
1426 	}
1427 }
1428 /*
1429 ************************************************************************
1430 ************************************************************************
1431 */
1432 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb)
1433 {
1434 	switch (acb->adapter_type) {
1435 	case ACB_ADAPTER_TYPE_A: {
1436 			arcmsr_stop_hba_bgrb(acb);
1437 		}
1438 		break;
1439 	case ACB_ADAPTER_TYPE_B: {
1440 			arcmsr_stop_hbb_bgrb(acb);
1441 		}
1442 		break;
1443 	case ACB_ADAPTER_TYPE_C: {
1444 			arcmsr_stop_hbc_bgrb(acb);
1445 		}
1446 		break;
1447 	case ACB_ADAPTER_TYPE_D: {
1448 			arcmsr_stop_hbd_bgrb(acb);
1449 		}
1450 		break;
1451 	case ACB_ADAPTER_TYPE_E:
1452 	case ACB_ADAPTER_TYPE_F: {
1453 			arcmsr_stop_hbe_bgrb(acb);
1454 		}
1455 		break;
1456 	}
1457 }
1458 /*
1459 ************************************************************************
1460 ************************************************************************
1461 */
1462 static void arcmsr_poll(struct cam_sim *psim)
1463 {
1464 	struct AdapterControlBlock *acb;
1465 	int	mutex;
1466 
1467 	acb = (struct AdapterControlBlock *)cam_sim_softc(psim);
1468 	mutex = mtx_owned(&acb->isr_lock);
1469 	if( mutex == 0 )
1470 		ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
1471 	arcmsr_interrupt(acb);
1472 	if( mutex == 0 )
1473 		ARCMSR_LOCK_RELEASE(&acb->isr_lock);
1474 }
1475 /*
1476 **************************************************************************
1477 **************************************************************************
1478 */
1479 static u_int32_t arcmsr_Read_iop_rqbuffer_data_D(struct AdapterControlBlock *acb,
1480 	struct QBUFFER *prbuffer) {
1481 	u_int8_t *pQbuffer;
1482 	u_int8_t *buf1 = NULL;
1483 	u_int32_t *iop_data, *buf2 = NULL;
1484 	u_int32_t iop_len, data_len;
1485 
1486 	iop_data = (u_int32_t *)prbuffer->data;
1487 	iop_len = (u_int32_t)prbuffer->data_len;
1488 	if ( iop_len > 0 )
1489 	{
1490 		buf1 = malloc(128, M_DEVBUF, M_NOWAIT | M_ZERO);
1491 		buf2 = (u_int32_t *)buf1;
1492 		if( buf1 == NULL)
1493 			return (0);
1494 		data_len = iop_len;
1495 		while(data_len >= 4)
1496 		{
1497 			*buf2++ = *iop_data++;
1498 			data_len -= 4;
1499 		}
1500 		if(data_len)
1501 			*buf2 = *iop_data;
1502 		buf2 = (u_int32_t *)buf1;
1503 	}
1504 	while (iop_len > 0) {
1505 		pQbuffer = &acb->rqbuffer[acb->rqbuf_lastindex];
1506 		*pQbuffer = *buf1;
1507 		acb->rqbuf_lastindex++;
1508 		/* if last, index number set it to 0 */
1509 		acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
1510 		buf1++;
1511 		iop_len--;
1512 	}
1513 	if(buf2)
1514 		free( (u_int8_t *)buf2, M_DEVBUF);
1515 	/* let IOP know data has been read */
1516 	arcmsr_iop_message_read(acb);
1517 	return (1);
1518 }
1519 /*
1520 **************************************************************************
1521 **************************************************************************
1522 */
1523 static u_int32_t arcmsr_Read_iop_rqbuffer_data(struct AdapterControlBlock *acb,
1524 	struct QBUFFER *prbuffer) {
1525 	u_int8_t *pQbuffer;
1526 	u_int8_t *iop_data;
1527 	u_int32_t iop_len;
1528 
1529 	if(acb->adapter_type >= ACB_ADAPTER_TYPE_B) {
1530 		return(arcmsr_Read_iop_rqbuffer_data_D(acb, prbuffer));
1531 	}
1532 	iop_data = (u_int8_t *)prbuffer->data;
1533 	iop_len = (u_int32_t)prbuffer->data_len;
1534 	while (iop_len > 0) {
1535 		pQbuffer = &acb->rqbuffer[acb->rqbuf_lastindex];
1536 		*pQbuffer = *iop_data;
1537 		acb->rqbuf_lastindex++;
1538 		/* if last, index number set it to 0 */
1539 		acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
1540 		iop_data++;
1541 		iop_len--;
1542 	}
1543 	/* let IOP know data has been read */
1544 	arcmsr_iop_message_read(acb);
1545 	return (1);
1546 }
1547 /*
1548 **************************************************************************
1549 **************************************************************************
1550 */
1551 static void arcmsr_iop2drv_data_wrote_handle(struct AdapterControlBlock *acb)
1552 {
1553 	struct QBUFFER *prbuffer;
1554 	int my_empty_len;
1555 
1556 	/*check this iop data if overflow my rqbuffer*/
1557 	ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
1558 	prbuffer = arcmsr_get_iop_rqbuffer(acb);
1559 	if (acb->rqbuf_lastindex >= acb->rqbuf_firstindex)
1560 		my_empty_len = (ARCMSR_MAX_QBUFFER - 1) - (acb->rqbuf_lastindex - acb->rqbuf_firstindex);
1561 	else
1562 		my_empty_len = acb->rqbuf_firstindex - acb->rqbuf_lastindex - 1;
1563 	if(my_empty_len >= prbuffer->data_len) {
1564 		if(arcmsr_Read_iop_rqbuffer_data(acb, prbuffer) == 0)
1565 			acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
1566 	} else {
1567 		acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
1568 	}
1569 	ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
1570 }
1571 /*
1572 **********************************************************************
1573 **********************************************************************
1574 */
1575 static void arcmsr_Write_data_2iop_wqbuffer_D(struct AdapterControlBlock *acb)
1576 {
1577 	u_int8_t *pQbuffer;
1578 	struct QBUFFER *pwbuffer;
1579 	u_int8_t *buf1 = NULL;
1580 	u_int32_t *iop_data, *buf2 = NULL;
1581 	u_int32_t allxfer_len = 0, data_len;
1582 
1583 	if(acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READ) {
1584 		buf1 = malloc(128, M_DEVBUF, M_NOWAIT | M_ZERO);
1585 		buf2 = (u_int32_t *)buf1;
1586 		if( buf1 == NULL)
1587 			return;
1588 
1589 		acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READ);
1590 		pwbuffer = arcmsr_get_iop_wqbuffer(acb);
1591 		iop_data = (u_int32_t *)pwbuffer->data;
1592 		while((acb->wqbuf_firstindex != acb->wqbuf_lastindex)
1593 			&& (allxfer_len < 124)) {
1594 			pQbuffer = &acb->wqbuffer[acb->wqbuf_firstindex];
1595 			*buf1 = *pQbuffer;
1596 			acb->wqbuf_firstindex++;
1597 			acb->wqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
1598 			buf1++;
1599 			allxfer_len++;
1600 		}
1601 		pwbuffer->data_len = allxfer_len;
1602 		data_len = allxfer_len;
1603 		buf1 = (u_int8_t *)buf2;
1604 		while(data_len >= 4)
1605 		{
1606 			*iop_data++ = *buf2++;
1607 			data_len -= 4;
1608 		}
1609 		if(data_len)
1610 			*iop_data = *buf2;
1611 		free( buf1, M_DEVBUF);
1612 		arcmsr_iop_message_wrote(acb);
1613 	}
1614 }
1615 /*
1616 **********************************************************************
1617 **********************************************************************
1618 */
1619 static void arcmsr_Write_data_2iop_wqbuffer(struct AdapterControlBlock *acb)
1620 {
1621 	u_int8_t *pQbuffer;
1622 	struct QBUFFER *pwbuffer;
1623 	u_int8_t *iop_data;
1624 	int32_t allxfer_len=0;
1625 
1626 	if(acb->adapter_type >= ACB_ADAPTER_TYPE_B) {
1627 		arcmsr_Write_data_2iop_wqbuffer_D(acb);
1628 		return;
1629 	}
1630 	if(acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READ) {
1631 		acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READ);
1632 		pwbuffer = arcmsr_get_iop_wqbuffer(acb);
1633 		iop_data = (u_int8_t *)pwbuffer->data;
1634 		while((acb->wqbuf_firstindex != acb->wqbuf_lastindex)
1635 			&& (allxfer_len < 124)) {
1636 			pQbuffer = &acb->wqbuffer[acb->wqbuf_firstindex];
1637 			*iop_data = *pQbuffer;
1638 			acb->wqbuf_firstindex++;
1639 			acb->wqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
1640 			iop_data++;
1641 			allxfer_len++;
1642 		}
1643 		pwbuffer->data_len = allxfer_len;
1644 		arcmsr_iop_message_wrote(acb);
1645 	}
1646 }
1647 /*
1648 **************************************************************************
1649 **************************************************************************
1650 */
1651 static void arcmsr_iop2drv_data_read_handle(struct AdapterControlBlock *acb)
1652 {
1653 	ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
1654 	acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_READ;
1655 	/*
1656 	*****************************************************************
1657 	**   check if there are any mail packages from user space program
1658 	**   in my post bag, now is the time to send them into Areca's firmware
1659 	*****************************************************************
1660 	*/
1661 	if(acb->wqbuf_firstindex != acb->wqbuf_lastindex) {
1662 		arcmsr_Write_data_2iop_wqbuffer(acb);
1663 	}
1664 	if(acb->wqbuf_firstindex == acb->wqbuf_lastindex) {
1665 		acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_CLEARED;
1666 	}
1667 	ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
1668 }
1669 /*
1670 **************************************************************************
1671 **************************************************************************
1672 */
1673 static void arcmsr_rescanLun_cb(struct cam_periph *periph, union ccb *ccb)
1674 {
1675 /*
1676 	if (ccb->ccb_h.status != CAM_REQ_CMP)
1677 		printf("arcmsr_rescanLun_cb: Rescan Target=%x, lun=%x,"
1678 			"failure status=%x\n", ccb->ccb_h.target_id,
1679 			ccb->ccb_h.target_lun, ccb->ccb_h.status);
1680 	else
1681 		printf("arcmsr_rescanLun_cb: Rescan lun successfully!\n");
1682 */
1683 	xpt_free_path(ccb->ccb_h.path);
1684 	xpt_free_ccb(ccb);
1685 }
1686 
1687 static void	arcmsr_rescan_lun(struct AdapterControlBlock *acb, int target, int lun)
1688 {
1689 	struct cam_path     *path;
1690 	union ccb           *ccb;
1691 
1692 	if ((ccb = (union ccb *)xpt_alloc_ccb_nowait()) == NULL)
1693 		return;
1694 	if (xpt_create_path(&path, NULL, cam_sim_path(acb->psim), target, lun) != CAM_REQ_CMP)
1695 	{
1696 		xpt_free_ccb(ccb);
1697 		return;
1698 	}
1699 /*	printf("arcmsr_rescan_lun: Rescan Target=%x, Lun=%x\n", target, lun); */
1700 	xpt_setup_ccb(&ccb->ccb_h, path, 5);
1701 	ccb->ccb_h.func_code = XPT_SCAN_LUN;
1702 	ccb->ccb_h.cbfcnp = arcmsr_rescanLun_cb;
1703 	ccb->crcn.flags = CAM_FLAG_NONE;
1704 	xpt_action(ccb);
1705 }
1706 
1707 static void arcmsr_abort_dr_ccbs(struct AdapterControlBlock *acb, int target, int lun)
1708 {
1709 	struct CommandControlBlock *srb;
1710 	u_int32_t intmask_org;
1711 	int i;
1712 
1713 	/* disable all outbound interrupts */
1714 	intmask_org = arcmsr_disable_allintr(acb);
1715 	for (i = 0; i < ARCMSR_MAX_FREESRB_NUM; i++)
1716 	{
1717 		srb = acb->psrb_pool[i];
1718 		if (srb->srb_state == ARCMSR_SRB_START)
1719 		{
1720 			if((target == srb->pccb->ccb_h.target_id) && (lun == srb->pccb->ccb_h.target_lun))
1721 			{
1722 				srb->srb_state = ARCMSR_SRB_ABORTED;
1723 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
1724 				arcmsr_srb_complete(srb, 1);
1725 				printf("arcmsr%d: abort scsi id %d lun %d srb=%p \n", acb->pci_unit, target, lun, srb);
1726 			}
1727 		}
1728 	}
1729 	/* enable outbound Post Queue, outbound doorbell Interrupt */
1730 	arcmsr_enable_allintr(acb, intmask_org);
1731 }
1732 /*
1733 **************************************************************************
1734 **************************************************************************
1735 */
1736 static void arcmsr_dr_handle(struct AdapterControlBlock *acb) {
1737 	u_int32_t	devicemap;
1738 	u_int32_t	target, lun;
1739 	u_int32_t	deviceMapCurrent[4]={0};
1740 	u_int8_t	*pDevMap;
1741 
1742 	switch (acb->adapter_type) {
1743 	case ACB_ADAPTER_TYPE_A:
1744 		devicemap = offsetof(struct HBA_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1745 		for (target = 0; target < 4; target++)
1746 		{
1747 			deviceMapCurrent[target]=bus_space_read_4(acb->btag[0], acb->bhandle[0], devicemap);
1748 			devicemap += 4;
1749 		}
1750 		break;
1751 
1752 	case ACB_ADAPTER_TYPE_B:
1753 		devicemap = offsetof(struct HBB_RWBUFFER, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1754 		for (target = 0; target < 4; target++)
1755 		{
1756 			deviceMapCurrent[target]=bus_space_read_4(acb->btag[1], acb->bhandle[1], devicemap);
1757 			devicemap += 4;
1758 		}
1759 		break;
1760 
1761 	case ACB_ADAPTER_TYPE_C:
1762 		devicemap = offsetof(struct HBC_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1763 		for (target = 0; target < 4; target++)
1764 		{
1765 			deviceMapCurrent[target]=bus_space_read_4(acb->btag[0], acb->bhandle[0], devicemap);
1766 			devicemap += 4;
1767 		}
1768 		break;
1769 	case ACB_ADAPTER_TYPE_D:
1770 		devicemap = offsetof(struct HBD_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1771 		for (target = 0; target < 4; target++)
1772 		{
1773 			deviceMapCurrent[target]=bus_space_read_4(acb->btag[0], acb->bhandle[0], devicemap);
1774 			devicemap += 4;
1775 		}
1776 		break;
1777 	case ACB_ADAPTER_TYPE_E:
1778 		devicemap = offsetof(struct HBE_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
1779 		for (target = 0; target < 4; target++)
1780 		{
1781 			deviceMapCurrent[target]=bus_space_read_4(acb->btag[0], acb->bhandle[0], devicemap);
1782 			devicemap += 4;
1783 		}
1784 		break;
1785 	case ACB_ADAPTER_TYPE_F:
1786 		devicemap = ARCMSR_FW_DEVMAP_OFFSET;
1787 		for (target = 0; target < 4; target++)
1788 		{
1789 			deviceMapCurrent[target] = acb->msgcode_rwbuffer[devicemap];
1790 			devicemap += 1;
1791 		}
1792 		break;
1793 	}
1794 
1795 	if(acb->acb_flags & ACB_F_BUS_HANG_ON)
1796 	{
1797 		acb->acb_flags &= ~ACB_F_BUS_HANG_ON;
1798 	}
1799 	/*
1800 	** adapter posted CONFIG message
1801 	** copy the new map, note if there are differences with the current map
1802 	*/
1803 	pDevMap = (u_int8_t *)&deviceMapCurrent[0];
1804 	for (target = 0; target < ARCMSR_MAX_TARGETID - 1; target++)
1805 	{
1806 		if (*pDevMap != acb->device_map[target])
1807 		{
1808 			u_int8_t difference, bit_check;
1809 
1810 			difference = *pDevMap ^ acb->device_map[target];
1811 			for(lun=0; lun < ARCMSR_MAX_TARGETLUN; lun++)
1812 			{
1813 				bit_check = (1 << lun);		/*check bit from 0....31*/
1814 				if(difference & bit_check)
1815 				{
1816 					if(acb->device_map[target] & bit_check)
1817 					{/* unit departed */
1818 						if (target != 0x0f)
1819 							printf("arcmsr_dr_handle: Target=0x%x, lun=%x, GONE!!!\n",target,lun);
1820 						arcmsr_abort_dr_ccbs(acb, target, lun);
1821 						arcmsr_rescan_lun(acb, target, lun);
1822 						acb->devstate[target][lun] = ARECA_RAID_GONE;
1823 					}
1824 					else
1825 					{/* unit arrived */
1826 						printf("arcmsr_dr_handle: Target=0x%x, lun=%x, Plug-IN!!!\n",target,lun);
1827 						arcmsr_rescan_lun(acb, target, lun);
1828 						acb->devstate[target][lun] = ARECA_RAID_GOOD;
1829 					}
1830 				}
1831 			}
1832 /*			printf("arcmsr_dr_handle: acb->device_map[%x]=0x%x, deviceMapCurrent[%x]=%x\n",target,acb->device_map[target],target,*pDevMap); */
1833 			acb->device_map[target] = *pDevMap;
1834 		}
1835 		pDevMap++;
1836 	}
1837 }
1838 /*
1839 **************************************************************************
1840 **************************************************************************
1841 */
1842 static void arcmsr_hba_message_isr(struct AdapterControlBlock *acb) {
1843 	u_int32_t outbound_message;
1844 
1845 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, ARCMSR_MU_OUTBOUND_MESSAGE0_INT);
1846 	outbound_message = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[0]);
1847 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1848 		arcmsr_dr_handle( acb );
1849 }
1850 /*
1851 **************************************************************************
1852 **************************************************************************
1853 */
1854 static void arcmsr_hbb_message_isr(struct AdapterControlBlock *acb) {
1855 	u_int32_t outbound_message;
1856 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
1857 
1858 	/* clear interrupts */
1859 	WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_MESSAGE_INT_CLEAR_PATTERN);
1860 	outbound_message = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[0]);
1861 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1862 		arcmsr_dr_handle( acb );
1863 }
1864 /*
1865 **************************************************************************
1866 **************************************************************************
1867 */
1868 static void arcmsr_hbc_message_isr(struct AdapterControlBlock *acb) {
1869 	u_int32_t outbound_message;
1870 
1871 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, outbound_doorbell_clear, ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR);
1872 	outbound_message = CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[0]);
1873 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1874 		arcmsr_dr_handle( acb );
1875 }
1876 /*
1877 **************************************************************************
1878 **************************************************************************
1879 */
1880 static void arcmsr_hbd_message_isr(struct AdapterControlBlock *acb) {
1881 	u_int32_t outbound_message;
1882 
1883 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE_CLEAR);
1884 	outbound_message = CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[0]);
1885 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1886 		arcmsr_dr_handle( acb );
1887 }
1888 /*
1889 **************************************************************************
1890 **************************************************************************
1891 */
1892 static void arcmsr_hbe_message_isr(struct AdapterControlBlock *acb) {
1893 	u_int32_t outbound_message;
1894 
1895 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_status, 0);
1896 	if (acb->adapter_type == ACB_ADAPTER_TYPE_E)
1897 		outbound_message = CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[0]);
1898 	else
1899 		outbound_message = acb->msgcode_rwbuffer[0];
1900 	if (outbound_message == ARCMSR_SIGNATURE_GET_CONFIG)
1901 		arcmsr_dr_handle( acb );
1902 }
1903 /*
1904 **************************************************************************
1905 **************************************************************************
1906 */
1907 static void arcmsr_hba_doorbell_isr(struct AdapterControlBlock *acb)
1908 {
1909 	u_int32_t doorbell_status;
1910 
1911 	/*
1912 	*******************************************************************
1913 	**  Maybe here we need to check wrqbuffer_lock is lock or not
1914 	**  DOORBELL: din! don!
1915 	**  check if there are any mail need to pack from firmware
1916 	*******************************************************************
1917 	*/
1918 	doorbell_status = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_doorbell);
1919 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_doorbell, doorbell_status); /* clear doorbell interrupt */
1920 	if(doorbell_status & ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK) {
1921 		arcmsr_iop2drv_data_wrote_handle(acb);
1922 	}
1923 	if(doorbell_status & ARCMSR_OUTBOUND_IOP331_DATA_READ_OK) {
1924 		arcmsr_iop2drv_data_read_handle(acb);
1925 	}
1926 }
1927 /*
1928 **************************************************************************
1929 **************************************************************************
1930 */
1931 static void arcmsr_hbc_doorbell_isr(struct AdapterControlBlock *acb)
1932 {
1933 	u_int32_t doorbell_status;
1934 
1935 	/*
1936 	*******************************************************************
1937 	**  Maybe here we need to check wrqbuffer_lock is lock or not
1938 	**  DOORBELL: din! don!
1939 	**  check if there are any mail need to pack from firmware
1940 	*******************************************************************
1941 	*/
1942 	doorbell_status = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_doorbell);
1943 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, outbound_doorbell_clear, doorbell_status); /* clear doorbell interrupt */
1944 	if(doorbell_status & ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK) {
1945 		arcmsr_iop2drv_data_wrote_handle(acb);
1946 	}
1947 	if(doorbell_status & ARCMSR_HBCMU_IOP2DRV_DATA_READ_OK) {
1948 		arcmsr_iop2drv_data_read_handle(acb);
1949 	}
1950 	if(doorbell_status & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
1951 		arcmsr_hbc_message_isr(acb);    /* messenger of "driver to iop commands" */
1952 	}
1953 }
1954 /*
1955 **************************************************************************
1956 **************************************************************************
1957 */
1958 static void arcmsr_hbd_doorbell_isr(struct AdapterControlBlock *acb)
1959 {
1960 	u_int32_t doorbell_status;
1961 
1962 	/*
1963 	*******************************************************************
1964 	**  Maybe here we need to check wrqbuffer_lock is lock or not
1965 	**  DOORBELL: din! don!
1966 	**  check if there are any mail need to pack from firmware
1967 	*******************************************************************
1968 	*/
1969 	doorbell_status = CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBDMU_F0_DOORBELL_CAUSE;
1970 	if(doorbell_status)
1971 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, doorbell_status); /* clear doorbell interrupt */
1972 	while( doorbell_status & ARCMSR_HBDMU_F0_DOORBELL_CAUSE ) {
1973 		if(doorbell_status & ARCMSR_HBDMU_IOP2DRV_DATA_WRITE_OK) {
1974 			arcmsr_iop2drv_data_wrote_handle(acb);
1975 		}
1976 		if(doorbell_status & ARCMSR_HBDMU_IOP2DRV_DATA_READ_OK) {
1977 			arcmsr_iop2drv_data_read_handle(acb);
1978 		}
1979 		if(doorbell_status & ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE) {
1980 			arcmsr_hbd_message_isr(acb);    /* messenger of "driver to iop commands" */
1981 		}
1982 		doorbell_status = CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBDMU_F0_DOORBELL_CAUSE;
1983 		if(doorbell_status)
1984 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, doorbell_status); /* clear doorbell interrupt */
1985 	}
1986 }
1987 /*
1988 **************************************************************************
1989 **************************************************************************
1990 */
1991 static void arcmsr_hbe_doorbell_isr(struct AdapterControlBlock *acb)
1992 {
1993 	u_int32_t doorbell_status, in_doorbell;
1994 
1995 	/*
1996 	*******************************************************************
1997 	**  Maybe here we need to check wrqbuffer_lock is lock or not
1998 	**  DOORBELL: din! don!
1999 	**  check if there are any mail need to pack from firmware
2000 	*******************************************************************
2001 	*/
2002 	in_doorbell = CHIP_REG_READ32(HBE_MessageUnit, 0, iobound_doorbell);
2003 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_status, 0); /* clear doorbell interrupt */
2004 	doorbell_status = in_doorbell ^ acb->in_doorbell;
2005 	if(doorbell_status & ARCMSR_HBEMU_IOP2DRV_DATA_WRITE_OK) {
2006 		arcmsr_iop2drv_data_wrote_handle(acb);
2007 	}
2008 	if(doorbell_status & ARCMSR_HBEMU_IOP2DRV_DATA_READ_OK) {
2009 		arcmsr_iop2drv_data_read_handle(acb);
2010 	}
2011 	if(doorbell_status & ARCMSR_HBEMU_IOP2DRV_MESSAGE_CMD_DONE) {
2012 		arcmsr_hbe_message_isr(acb);    /* messenger of "driver to iop commands" */
2013 	}
2014 	acb->in_doorbell = in_doorbell;
2015 }
2016 /*
2017 **************************************************************************
2018 **************************************************************************
2019 */
2020 static void arcmsr_hbf_doorbell_isr(struct AdapterControlBlock *acb)
2021 {
2022 	u_int32_t doorbell_status, in_doorbell;
2023 
2024 	/*
2025 	*******************************************************************
2026 	**  Maybe here we need to check wrqbuffer_lock is lock or not
2027 	**  DOORBELL: din! don!
2028 	**  check if there are any mail need to pack from firmware
2029 	*******************************************************************
2030 	*/
2031 	while(1) {
2032 		in_doorbell = CHIP_REG_READ32(HBE_MessageUnit, 0, iobound_doorbell);
2033 		if ((in_doorbell != 0) && (in_doorbell != 0xFFFFFFFF))
2034 			break;
2035 	}
2036 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_status, 0); /* clear doorbell interrupt */
2037 	doorbell_status = in_doorbell ^ acb->in_doorbell;
2038 	if(doorbell_status & ARCMSR_HBEMU_IOP2DRV_DATA_WRITE_OK) {
2039 		arcmsr_iop2drv_data_wrote_handle(acb);
2040 	}
2041 	if(doorbell_status & ARCMSR_HBEMU_IOP2DRV_DATA_READ_OK) {
2042 		arcmsr_iop2drv_data_read_handle(acb);
2043 	}
2044 	if(doorbell_status & ARCMSR_HBEMU_IOP2DRV_MESSAGE_CMD_DONE) {
2045 		arcmsr_hbe_message_isr(acb);    /* messenger of "driver to iop commands" */
2046 	}
2047 	acb->in_doorbell = in_doorbell;
2048 }
2049 /*
2050 **************************************************************************
2051 **************************************************************************
2052 */
2053 static void arcmsr_hba_postqueue_isr(struct AdapterControlBlock *acb)
2054 {
2055 	u_int32_t flag_srb;
2056 	u_int16_t error;
2057 
2058 	/*
2059 	*****************************************************************************
2060 	**               areca cdb command done
2061 	*****************************************************************************
2062 	*/
2063 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap,
2064 		BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
2065 	while((flag_srb = CHIP_REG_READ32(HBA_MessageUnit,
2066 		0, outbound_queueport)) != 0xFFFFFFFF) {
2067 		/* check if command done with no error*/
2068 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0) ? TRUE : FALSE;
2069 		arcmsr_drain_donequeue(acb, flag_srb, error);
2070 	}	/*drain reply FIFO*/
2071 }
2072 /*
2073 **************************************************************************
2074 **************************************************************************
2075 */
2076 static void arcmsr_hbb_postqueue_isr(struct AdapterControlBlock *acb)
2077 {
2078 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
2079 	u_int32_t flag_srb;
2080 	int index;
2081 	u_int16_t error;
2082 
2083 	/*
2084 	*****************************************************************************
2085 	**               areca cdb command done
2086 	*****************************************************************************
2087 	*/
2088 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap,
2089 		BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
2090 	index = phbbmu->doneq_index;
2091 	while((flag_srb = phbbmu->done_qbuffer[index]) != 0) {
2092 		phbbmu->done_qbuffer[index] = 0;
2093 		index++;
2094 		index %= ARCMSR_MAX_HBB_POSTQUEUE;     /*if last index number set it to 0 */
2095 		phbbmu->doneq_index = index;
2096 		/* check if command done with no error*/
2097 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0)?TRUE:FALSE;
2098 		arcmsr_drain_donequeue(acb, flag_srb, error);
2099 	}	/*drain reply FIFO*/
2100 }
2101 /*
2102 **************************************************************************
2103 **************************************************************************
2104 */
2105 static void arcmsr_hbc_postqueue_isr(struct AdapterControlBlock *acb)
2106 {
2107 	u_int32_t flag_srb,throttling = 0;
2108 	u_int16_t error;
2109 
2110 	/*
2111 	*****************************************************************************
2112 	**               areca cdb command done
2113 	*****************************************************************************
2114 	*/
2115 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
2116 	do {
2117 		flag_srb = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_queueport_low);
2118 		if (flag_srb == 0xFFFFFFFF)
2119 			break;
2120 		/* check if command done with no error*/
2121 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1)?TRUE:FALSE;
2122 		arcmsr_drain_donequeue(acb, flag_srb, error);
2123 		throttling++;
2124 		if(throttling == ARCMSR_HBC_ISR_THROTTLING_LEVEL) {
2125 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_POSTQUEUE_THROTTLING);
2126 			throttling = 0;
2127 		}
2128 	} while(CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR);
2129 }
2130 /*
2131 **********************************************************************
2132 **
2133 **********************************************************************
2134 */
2135 static uint16_t arcmsr_get_doneq_index(struct HBD_MessageUnit0 *phbdmu)
2136 {
2137 	uint16_t doneq_index, index_stripped;
2138 
2139 	doneq_index = phbdmu->doneq_index;
2140 	if (doneq_index & 0x4000) {
2141 		index_stripped = doneq_index & 0xFF;
2142 		index_stripped += 1;
2143 		index_stripped %= ARCMSR_MAX_HBD_POSTQUEUE;
2144 		phbdmu->doneq_index = index_stripped ?
2145 		    (index_stripped | 0x4000) : index_stripped;
2146 	} else {
2147 		index_stripped = doneq_index;
2148 		index_stripped += 1;
2149 		index_stripped %= ARCMSR_MAX_HBD_POSTQUEUE;
2150 		phbdmu->doneq_index = index_stripped ?
2151 		    index_stripped : (index_stripped | 0x4000);
2152 	}
2153 	return (phbdmu->doneq_index);
2154 }
2155 /*
2156 **************************************************************************
2157 **************************************************************************
2158 */
2159 static void arcmsr_hbd_postqueue_isr(struct AdapterControlBlock *acb)
2160 {
2161 	struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
2162 	u_int32_t outbound_write_pointer;
2163 	u_int32_t addressLow;
2164 	uint16_t doneq_index;
2165 	u_int16_t error;
2166 	/*
2167 	*****************************************************************************
2168 	**               areca cdb command done
2169 	*****************************************************************************
2170 	*/
2171 	if((CHIP_REG_READ32(HBD_MessageUnit, 0, outboundlist_interrupt_cause) &
2172 		ARCMSR_HBDMU_OUTBOUND_LIST_INTERRUPT) == 0)
2173 		return;
2174 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap,
2175 		BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
2176 	outbound_write_pointer = phbdmu->done_qbuffer[0].addressLow;
2177 	doneq_index = phbdmu->doneq_index;
2178 	while ((doneq_index & 0xFF) != (outbound_write_pointer & 0xFF)) {
2179 		doneq_index = arcmsr_get_doneq_index(phbdmu);
2180 		addressLow = phbdmu->done_qbuffer[(doneq_index & 0xFF)+1].addressLow;
2181 		error = (addressLow & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1) ? TRUE : FALSE;
2182 		arcmsr_drain_donequeue(acb, addressLow, error); /*Check if command done with no error */
2183 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, outboundlist_read_pointer, doneq_index);
2184 		outbound_write_pointer = phbdmu->done_qbuffer[0].addressLow;
2185 	}
2186 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, outboundlist_interrupt_cause, ARCMSR_HBDMU_OUTBOUND_LIST_INTERRUPT_CLEAR);
2187 	CHIP_REG_READ32(HBD_MessageUnit, 0, outboundlist_interrupt_cause); /*Dummy ioread32 to force pci flush */
2188 }
2189 /*
2190 **************************************************************************
2191 **************************************************************************
2192 */
2193 static void arcmsr_hbe_postqueue_isr(struct AdapterControlBlock *acb)
2194 {
2195 	u_int16_t error;
2196 	uint32_t doneq_index;
2197 	uint16_t cmdSMID;
2198 
2199 	/*
2200 	*****************************************************************************
2201 	**               areca cdb command done
2202 	*****************************************************************************
2203 	*/
2204 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
2205 	doneq_index = acb->doneq_index;
2206 	while ((CHIP_REG_READ32(HBE_MessageUnit, 0, reply_post_producer_index) & 0xFFFF) != doneq_index) {
2207 		cmdSMID = acb->pCompletionQ[doneq_index].cmdSMID;
2208 		error = (acb->pCompletionQ[doneq_index].cmdFlag & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1) ? TRUE : FALSE;
2209 		arcmsr_drain_donequeue(acb, (u_int32_t)cmdSMID, error);
2210 		doneq_index++;
2211 		if (doneq_index >= acb->completionQ_entry)
2212 			doneq_index = 0;
2213 	}
2214 	acb->doneq_index = doneq_index;
2215 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, reply_post_consumer_index, doneq_index);
2216 }
2217 
2218 static void arcmsr_hbf_postqueue_isr(struct AdapterControlBlock *acb)
2219 {
2220 	uint16_t error;
2221 	uint32_t doneq_index;
2222 	uint16_t cmdSMID;
2223 
2224 	/*
2225 	*****************************************************************************
2226 	**               areca cdb command done
2227 	*****************************************************************************
2228 	*/
2229 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
2230 	doneq_index = acb->doneq_index;
2231 	while (1) {
2232 		cmdSMID = acb->pCompletionQ[doneq_index].cmdSMID;
2233 		if (cmdSMID == 0xffff)
2234 			break;
2235 		error = (acb->pCompletionQ[doneq_index].cmdFlag & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1) ? TRUE : FALSE;
2236 		arcmsr_drain_donequeue(acb, (u_int32_t)cmdSMID, error);
2237 		acb->pCompletionQ[doneq_index].cmdSMID = 0xffff;
2238 		doneq_index++;
2239 		if (doneq_index >= acb->completionQ_entry)
2240 			doneq_index = 0;
2241 	}
2242 	acb->doneq_index = doneq_index;
2243 	CHIP_REG_WRITE32(HBF_MessageUnit, 0, reply_post_consumer_index, doneq_index);
2244 }
2245 
2246 /*
2247 **********************************************************************
2248 **********************************************************************
2249 */
2250 static void arcmsr_handle_hba_isr( struct AdapterControlBlock *acb)
2251 {
2252 	u_int32_t outbound_intStatus;
2253 	/*
2254 	*********************************************
2255 	**   check outbound intstatus
2256 	*********************************************
2257 	*/
2258 	outbound_intStatus = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intstatus) & acb->outbound_int_enable;
2259 	if(!outbound_intStatus) {
2260 		/*it must be share irq*/
2261 		return;
2262 	}
2263 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, outbound_intStatus); /*clear interrupt*/
2264 	/* MU doorbell interrupts*/
2265 	if(outbound_intStatus & ARCMSR_MU_OUTBOUND_DOORBELL_INT) {
2266 		arcmsr_hba_doorbell_isr(acb);
2267 	}
2268 	/* MU post queue interrupts*/
2269 	if(outbound_intStatus & ARCMSR_MU_OUTBOUND_POSTQUEUE_INT) {
2270 		arcmsr_hba_postqueue_isr(acb);
2271 	}
2272 	if(outbound_intStatus & ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
2273 		arcmsr_hba_message_isr(acb);
2274 	}
2275 }
2276 /*
2277 **********************************************************************
2278 **********************************************************************
2279 */
2280 static void arcmsr_handle_hbb_isr( struct AdapterControlBlock *acb)
2281 {
2282 	u_int32_t outbound_doorbell;
2283 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
2284 	/*
2285 	*********************************************
2286 	**   check outbound intstatus
2287 	*********************************************
2288 	*/
2289 	outbound_doorbell = READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell) & acb->outbound_int_enable;
2290 	if(!outbound_doorbell) {
2291 		/*it must be share irq*/
2292 		return;
2293 	}
2294 	WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ~outbound_doorbell); /* clear doorbell interrupt */
2295 	READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell);
2296 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_END_OF_INTERRUPT);
2297 	/* MU ioctl transfer doorbell interrupts*/
2298 	if(outbound_doorbell & ARCMSR_IOP2DRV_DATA_WRITE_OK) {
2299 		arcmsr_iop2drv_data_wrote_handle(acb);
2300 	}
2301 	if(outbound_doorbell & ARCMSR_IOP2DRV_DATA_READ_OK) {
2302 		arcmsr_iop2drv_data_read_handle(acb);
2303 	}
2304 	/* MU post queue interrupts*/
2305 	if(outbound_doorbell & ARCMSR_IOP2DRV_CDB_DONE) {
2306 		arcmsr_hbb_postqueue_isr(acb);
2307 	}
2308 	if(outbound_doorbell & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
2309 		arcmsr_hbb_message_isr(acb);
2310 	}
2311 }
2312 /*
2313 **********************************************************************
2314 **********************************************************************
2315 */
2316 static void arcmsr_handle_hbc_isr( struct AdapterControlBlock *acb)
2317 {
2318 	u_int32_t host_interrupt_status;
2319 	/*
2320 	*********************************************
2321 	**   check outbound intstatus
2322 	*********************************************
2323 	*/
2324 	host_interrupt_status = CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status) &
2325 		(ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR |
2326 		ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR);
2327 	if(!host_interrupt_status) {
2328 		/*it must be share irq*/
2329 		return;
2330 	}
2331 	do {
2332 		/* MU doorbell interrupts*/
2333 		if(host_interrupt_status & ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR) {
2334 			arcmsr_hbc_doorbell_isr(acb);
2335 		}
2336 		/* MU post queue interrupts*/
2337 		if(host_interrupt_status & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) {
2338 			arcmsr_hbc_postqueue_isr(acb);
2339 		}
2340 		host_interrupt_status = CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status);
2341 	} while (host_interrupt_status & (ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR | ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR));
2342 }
2343 /*
2344 **********************************************************************
2345 **********************************************************************
2346 */
2347 static void arcmsr_handle_hbd_isr( struct AdapterControlBlock *acb)
2348 {
2349 	u_int32_t host_interrupt_status;
2350 	u_int32_t intmask_org;
2351 	/*
2352 	*********************************************
2353 	**   check outbound intstatus
2354 	*********************************************
2355 	*/
2356 	host_interrupt_status = CHIP_REG_READ32(HBD_MessageUnit, 0, host_int_status) & acb->outbound_int_enable;
2357 	if(!(host_interrupt_status & ARCMSR_HBDMU_OUTBOUND_INT)) {
2358 		/*it must be share irq*/
2359 		return;
2360 	}
2361 	/* disable outbound interrupt */
2362 	intmask_org = CHIP_REG_READ32(HBD_MessageUnit, 0, pcief0_int_enable)	; /* disable outbound message0 int */
2363 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, pcief0_int_enable, ARCMSR_HBDMU_ALL_INT_DISABLE);
2364 	/* MU doorbell interrupts*/
2365 	if(host_interrupt_status & ARCMSR_HBDMU_OUTBOUND_DOORBELL_INT) {
2366 		arcmsr_hbd_doorbell_isr(acb);
2367 	}
2368 	/* MU post queue interrupts*/
2369 	if(host_interrupt_status & ARCMSR_HBDMU_OUTBOUND_POSTQUEUE_INT) {
2370 		arcmsr_hbd_postqueue_isr(acb);
2371 	}
2372 	/* enable all outbound interrupt */
2373 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, pcief0_int_enable, intmask_org | ARCMSR_HBDMU_ALL_INT_ENABLE);
2374 //	CHIP_REG_READ32(HBD_MessageUnit, 0, pcief0_int_enable);
2375 }
2376 /*
2377 **********************************************************************
2378 **********************************************************************
2379 */
2380 static void arcmsr_handle_hbe_isr( struct AdapterControlBlock *acb)
2381 {
2382 	u_int32_t host_interrupt_status;
2383 	/*
2384 	*********************************************
2385 	**   check outbound intstatus
2386 	*********************************************
2387 	*/
2388 	host_interrupt_status = CHIP_REG_READ32(HBE_MessageUnit, 0, host_int_status) &
2389 		(ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR |
2390 		ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR);
2391 	if(!host_interrupt_status) {
2392 		/*it must be share irq*/
2393 		return;
2394 	}
2395 	do {
2396 		/* MU doorbell interrupts*/
2397 		if(host_interrupt_status & ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR) {
2398 			arcmsr_hbe_doorbell_isr(acb);
2399 		}
2400 		/* MU post queue interrupts*/
2401 		if(host_interrupt_status & ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR) {
2402 			arcmsr_hbe_postqueue_isr(acb);
2403 		}
2404 		host_interrupt_status = CHIP_REG_READ32(HBE_MessageUnit, 0, host_int_status);
2405 	} while (host_interrupt_status & (ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR | ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR));
2406 }
2407 
2408 static void arcmsr_handle_hbf_isr( struct AdapterControlBlock *acb)
2409 {
2410 	u_int32_t host_interrupt_status;
2411 	/*
2412 	*********************************************
2413 	**   check outbound intstatus
2414 	*********************************************
2415 	*/
2416 	host_interrupt_status = CHIP_REG_READ32(HBF_MessageUnit, 0, host_int_status) &
2417 		(ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR |
2418 		ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR);
2419 	if(!host_interrupt_status) {
2420 		/*it must be share irq*/
2421 		return;
2422 	}
2423 	do {
2424 		/* MU doorbell interrupts*/
2425 		if(host_interrupt_status & ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR) {
2426 			arcmsr_hbf_doorbell_isr(acb);
2427 		}
2428 		/* MU post queue interrupts*/
2429 		if(host_interrupt_status & ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR) {
2430 			arcmsr_hbf_postqueue_isr(acb);
2431 		}
2432 		host_interrupt_status = CHIP_REG_READ32(HBF_MessageUnit, 0, host_int_status);
2433 	} while (host_interrupt_status & (ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR | ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR));
2434 }
2435 /*
2436 ******************************************************************************
2437 ******************************************************************************
2438 */
2439 static void arcmsr_interrupt(struct AdapterControlBlock *acb)
2440 {
2441 	switch (acb->adapter_type) {
2442 	case ACB_ADAPTER_TYPE_A:
2443 		arcmsr_handle_hba_isr(acb);
2444 		break;
2445 	case ACB_ADAPTER_TYPE_B:
2446 		arcmsr_handle_hbb_isr(acb);
2447 		break;
2448 	case ACB_ADAPTER_TYPE_C:
2449 		arcmsr_handle_hbc_isr(acb);
2450 		break;
2451 	case ACB_ADAPTER_TYPE_D:
2452 		arcmsr_handle_hbd_isr(acb);
2453 		break;
2454 	case ACB_ADAPTER_TYPE_E:
2455 		arcmsr_handle_hbe_isr(acb);
2456 		break;
2457 	case ACB_ADAPTER_TYPE_F:
2458 		arcmsr_handle_hbf_isr(acb);
2459 		break;
2460 	default:
2461 		printf("arcmsr%d: interrupt service,"
2462 		" unknown adapter type =%d\n", acb->pci_unit, acb->adapter_type);
2463 		break;
2464 	}
2465 }
2466 /*
2467 **********************************************************************
2468 **********************************************************************
2469 */
2470 static void arcmsr_intr_handler(void *arg)
2471 {
2472 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *)arg;
2473 
2474 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
2475 	arcmsr_interrupt(acb);
2476 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
2477 }
2478 /*
2479 ******************************************************************************
2480 ******************************************************************************
2481 */
2482 static void	arcmsr_polling_devmap(void *arg)
2483 {
2484 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *)arg;
2485 	switch (acb->adapter_type) {
2486 	case ACB_ADAPTER_TYPE_A:
2487 		CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
2488 		break;
2489 
2490 	case ACB_ADAPTER_TYPE_B: {
2491 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
2492 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_GET_CONFIG);
2493 		}
2494 		break;
2495 
2496 	case ACB_ADAPTER_TYPE_C:
2497 		CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
2498 		CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
2499 		break;
2500 
2501 	case ACB_ADAPTER_TYPE_D:
2502 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
2503 		break;
2504 
2505 	case ACB_ADAPTER_TYPE_E:
2506 		CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
2507 		acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
2508 		CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
2509 		break;
2510 
2511 	case ACB_ADAPTER_TYPE_F: {
2512 		u_int32_t outMsg1 = CHIP_REG_READ32(HBF_MessageUnit, 0, outbound_msgaddr1);
2513 		if (!(outMsg1 & ARCMSR_HBFMU_MESSAGE_FIRMWARE_OK) ||
2514 			(outMsg1 & ARCMSR_HBFMU_MESSAGE_NO_VOLUME_CHANGE))
2515 			goto nxt6s;
2516 		CHIP_REG_WRITE32(HBF_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
2517 		acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
2518 		CHIP_REG_WRITE32(HBF_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
2519 		break;
2520 		}
2521 	}
2522 nxt6s:
2523 	if((acb->acb_flags & ACB_F_SCSISTOPADAPTER) == 0)
2524 	{
2525 		callout_reset(&acb->devmap_callout, 5 * hz, arcmsr_polling_devmap, acb);	/* polling per 5 seconds */
2526 	}
2527 }
2528 
2529 /*
2530 *******************************************************************************
2531 **
2532 *******************************************************************************
2533 */
2534 static void arcmsr_iop_parking(struct AdapterControlBlock *acb)
2535 {
2536 	u_int32_t intmask_org;
2537 
2538 	if(acb != NULL) {
2539 		/* stop adapter background rebuild */
2540 		if(acb->acb_flags & ACB_F_MSG_START_BGRB) {
2541 			intmask_org = arcmsr_disable_allintr(acb);
2542 			arcmsr_stop_adapter_bgrb(acb);
2543 			arcmsr_flush_adapter_cache(acb);
2544 			arcmsr_enable_allintr(acb, intmask_org);
2545 		}
2546 	}
2547 }
2548 /*
2549 ***********************************************************************
2550 **
2551 ************************************************************************
2552 */
2553 static u_int32_t arcmsr_iop_ioctlcmd(struct AdapterControlBlock *acb, u_int32_t ioctl_cmd, caddr_t arg)
2554 {
2555 	struct CMD_MESSAGE_FIELD *pcmdmessagefld;
2556 	u_int32_t retvalue = EINVAL;
2557 
2558 	pcmdmessagefld = (struct CMD_MESSAGE_FIELD *) arg;
2559 	if(memcmp(pcmdmessagefld->cmdmessage.Signature, "ARCMSR", 6)!=0) {
2560 		return retvalue;
2561 	}
2562 	ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2563 	switch(ioctl_cmd) {
2564 	case ARCMSR_MESSAGE_READ_RQBUFFER: {
2565 			u_int8_t *pQbuffer;
2566 			u_int8_t *ptmpQbuffer = pcmdmessagefld->messagedatabuffer;
2567 			u_int32_t allxfer_len=0;
2568 
2569 			while((acb->rqbuf_firstindex != acb->rqbuf_lastindex)
2570 				&& (allxfer_len < 1031)) {
2571 				/*copy READ QBUFFER to srb*/
2572 				pQbuffer = &acb->rqbuffer[acb->rqbuf_firstindex];
2573 				*ptmpQbuffer = *pQbuffer;
2574 				acb->rqbuf_firstindex++;
2575 				acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
2576 				/*if last index number set it to 0 */
2577 				ptmpQbuffer++;
2578 				allxfer_len++;
2579 			}
2580 			if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2581 				struct QBUFFER *prbuffer;
2582 
2583 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2584 				prbuffer = arcmsr_get_iop_rqbuffer(acb);
2585 				if(arcmsr_Read_iop_rqbuffer_data(acb, prbuffer) == 0)
2586 					acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
2587 			}
2588 			pcmdmessagefld->cmdmessage.Length = allxfer_len;
2589 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2590 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2591 		}
2592 		break;
2593 	case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
2594 			u_int32_t my_empty_len, user_len, wqbuf_firstindex, wqbuf_lastindex;
2595 			u_int8_t *pQbuffer;
2596 			u_int8_t *ptmpuserbuffer = pcmdmessagefld->messagedatabuffer;
2597 
2598 			user_len = pcmdmessagefld->cmdmessage.Length;
2599 			/*check if data xfer length of this request will overflow my array qbuffer */
2600 			wqbuf_lastindex = acb->wqbuf_lastindex;
2601 			wqbuf_firstindex = acb->wqbuf_firstindex;
2602 			if(wqbuf_lastindex != wqbuf_firstindex) {
2603 				arcmsr_Write_data_2iop_wqbuffer(acb);
2604 				pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_ERROR;
2605 			} else {
2606 				my_empty_len = (wqbuf_firstindex - wqbuf_lastindex - 1) &
2607 					(ARCMSR_MAX_QBUFFER - 1);
2608 				if(my_empty_len >= user_len) {
2609 					while(user_len > 0) {
2610 						/*copy srb data to wqbuffer*/
2611 						pQbuffer = &acb->wqbuffer[acb->wqbuf_lastindex];
2612 						*pQbuffer = *ptmpuserbuffer;
2613 						acb->wqbuf_lastindex++;
2614 						acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
2615 						/*if last index number set it to 0 */
2616 						ptmpuserbuffer++;
2617 						user_len--;
2618 					}
2619 					/*post fist Qbuffer*/
2620 					if(acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
2621 						acb->acb_flags &= ~ACB_F_MESSAGE_WQBUFFER_CLEARED;
2622 						arcmsr_Write_data_2iop_wqbuffer(acb);
2623 					}
2624 					pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2625 				} else {
2626 					pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_ERROR;
2627 				}
2628 			}
2629 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2630 		}
2631 		break;
2632 	case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
2633 			u_int8_t *pQbuffer = acb->rqbuffer;
2634 
2635 			if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2636 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2637 				arcmsr_iop_message_read(acb);
2638 				/*signature, let IOP know data has been readed */
2639 			}
2640 			acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
2641 			acb->rqbuf_firstindex = 0;
2642 			acb->rqbuf_lastindex = 0;
2643 			memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
2644 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2645 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2646 		}
2647 		break;
2648 	case ARCMSR_MESSAGE_CLEAR_WQBUFFER:
2649 		{
2650 			u_int8_t *pQbuffer = acb->wqbuffer;
2651 
2652 			if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2653 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2654 				arcmsr_iop_message_read(acb);
2655 				/*signature, let IOP know data has been readed */
2656 			}
2657 			acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED|ACB_F_MESSAGE_WQBUFFER_READ);
2658 			acb->wqbuf_firstindex = 0;
2659 			acb->wqbuf_lastindex = 0;
2660 			memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
2661 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2662 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2663 		}
2664 		break;
2665 	case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: {
2666 			u_int8_t *pQbuffer;
2667 
2668 			if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2669 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2670 				arcmsr_iop_message_read(acb);
2671 				/*signature, let IOP know data has been readed */
2672 			}
2673 			acb->acb_flags  |= (ACB_F_MESSAGE_WQBUFFER_CLEARED
2674 					|ACB_F_MESSAGE_RQBUFFER_CLEARED
2675 					|ACB_F_MESSAGE_WQBUFFER_READ);
2676 			acb->rqbuf_firstindex = 0;
2677 			acb->rqbuf_lastindex = 0;
2678 			acb->wqbuf_firstindex = 0;
2679 			acb->wqbuf_lastindex = 0;
2680 			pQbuffer = acb->rqbuffer;
2681 			memset(pQbuffer, 0, sizeof(struct QBUFFER));
2682 			pQbuffer = acb->wqbuffer;
2683 			memset(pQbuffer, 0, sizeof(struct QBUFFER));
2684 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2685 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2686 		}
2687 		break;
2688 	case ARCMSR_MESSAGE_REQUEST_RETURNCODE_3F: {
2689 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_3F;
2690 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2691 		}
2692 		break;
2693 	case ARCMSR_MESSAGE_SAY_HELLO: {
2694 			u_int8_t *hello_string = "Hello! I am ARCMSR";
2695 			u_int8_t *puserbuffer = (u_int8_t *)pcmdmessagefld->messagedatabuffer;
2696 
2697 			if(memcpy(puserbuffer, hello_string, (int16_t)strlen(hello_string))) {
2698 				pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_ERROR;
2699 				ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2700 				return ENOIOCTL;
2701 			}
2702 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2703 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2704 		}
2705 		break;
2706 	case ARCMSR_MESSAGE_SAY_GOODBYE: {
2707 			arcmsr_iop_parking(acb);
2708 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2709 		}
2710 		break;
2711 	case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE: {
2712 			arcmsr_flush_adapter_cache(acb);
2713 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2714 		}
2715 		break;
2716 	}
2717 	ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2718 	return (retvalue);
2719 }
2720 /*
2721 **************************************************************************
2722 **************************************************************************
2723 */
2724 static void arcmsr_free_srb(struct CommandControlBlock *srb)
2725 {
2726 	struct AdapterControlBlock	*acb;
2727 
2728 	acb = srb->acb;
2729 	ARCMSR_LOCK_ACQUIRE(&acb->srb_lock);
2730 	srb->srb_state = ARCMSR_SRB_DONE;
2731 	srb->srb_flags = 0;
2732 	acb->srbworkingQ[acb->workingsrb_doneindex] = srb;
2733 	acb->workingsrb_doneindex++;
2734 	acb->workingsrb_doneindex %= ARCMSR_MAX_FREESRB_NUM;
2735 	ARCMSR_LOCK_RELEASE(&acb->srb_lock);
2736 }
2737 /*
2738 **************************************************************************
2739 **************************************************************************
2740 */
2741 static struct CommandControlBlock *arcmsr_get_freesrb(struct AdapterControlBlock *acb)
2742 {
2743 	struct CommandControlBlock *srb = NULL;
2744 	u_int32_t workingsrb_startindex, workingsrb_doneindex;
2745 
2746 	ARCMSR_LOCK_ACQUIRE(&acb->srb_lock);
2747 	workingsrb_doneindex = acb->workingsrb_doneindex;
2748 	workingsrb_startindex = acb->workingsrb_startindex;
2749 	srb = acb->srbworkingQ[workingsrb_startindex];
2750 	workingsrb_startindex++;
2751 	workingsrb_startindex %= ARCMSR_MAX_FREESRB_NUM;
2752 	if(workingsrb_doneindex != workingsrb_startindex) {
2753 		acb->workingsrb_startindex = workingsrb_startindex;
2754 	} else {
2755 		srb = NULL;
2756 	}
2757 	ARCMSR_LOCK_RELEASE(&acb->srb_lock);
2758 	return(srb);
2759 }
2760 /*
2761 **************************************************************************
2762 **************************************************************************
2763 */
2764 static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, union ccb *pccb)
2765 {
2766 	struct CMD_MESSAGE_FIELD *pcmdmessagefld;
2767 	int retvalue = 0, transfer_len = 0;
2768 	char *buffer;
2769 	uint8_t *ptr = scsiio_cdb_ptr(&pccb->csio);
2770 	u_int32_t controlcode = (u_int32_t ) ptr[5] << 24 |
2771 				(u_int32_t ) ptr[6] << 16 |
2772 				(u_int32_t ) ptr[7] << 8  |
2773 				(u_int32_t ) ptr[8];
2774 					/* 4 bytes: Areca io control code */
2775 	if ((pccb->ccb_h.flags & CAM_DATA_MASK) == CAM_DATA_VADDR) {
2776 		buffer = pccb->csio.data_ptr;
2777 		transfer_len = pccb->csio.dxfer_len;
2778 	} else {
2779 		retvalue = ARCMSR_MESSAGE_FAIL;
2780 		goto message_out;
2781 	}
2782 	if (transfer_len > sizeof(struct CMD_MESSAGE_FIELD)) {
2783 		retvalue = ARCMSR_MESSAGE_FAIL;
2784 		goto message_out;
2785 	}
2786 	pcmdmessagefld = (struct CMD_MESSAGE_FIELD *) buffer;
2787 	switch(controlcode) {
2788 	case ARCMSR_MESSAGE_READ_RQBUFFER: {
2789 			u_int8_t *pQbuffer;
2790 			u_int8_t *ptmpQbuffer = pcmdmessagefld->messagedatabuffer;
2791 			int32_t allxfer_len = 0;
2792 
2793 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2794 			while ((acb->rqbuf_firstindex != acb->rqbuf_lastindex)
2795 				&& (allxfer_len < 1031)) {
2796 				pQbuffer = &acb->rqbuffer[acb->rqbuf_firstindex];
2797 				*ptmpQbuffer = *pQbuffer;
2798 				acb->rqbuf_firstindex++;
2799 				acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
2800 				ptmpQbuffer++;
2801 				allxfer_len++;
2802 			}
2803 			if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2804 				struct QBUFFER  *prbuffer;
2805 
2806 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2807 				prbuffer = arcmsr_get_iop_rqbuffer(acb);
2808 				if(arcmsr_Read_iop_rqbuffer_data(acb, prbuffer) == 0)
2809 					acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
2810 			}
2811 			pcmdmessagefld->cmdmessage.Length = allxfer_len;
2812 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2813 			retvalue = ARCMSR_MESSAGE_SUCCESS;
2814 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2815 		}
2816 		break;
2817 	case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
2818 			int32_t my_empty_len, user_len, wqbuf_firstindex, wqbuf_lastindex;
2819 			u_int8_t *pQbuffer;
2820 			u_int8_t *ptmpuserbuffer = pcmdmessagefld->messagedatabuffer;
2821 
2822 			user_len = pcmdmessagefld->cmdmessage.Length;
2823 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2824 			wqbuf_lastindex = acb->wqbuf_lastindex;
2825 			wqbuf_firstindex = acb->wqbuf_firstindex;
2826 			if (wqbuf_lastindex != wqbuf_firstindex) {
2827 				arcmsr_Write_data_2iop_wqbuffer(acb);
2828 				/* has error report sensedata */
2829 				if(pccb->csio.sense_len) {
2830 				((u_int8_t *)&pccb->csio.sense_data)[0] = (0x1 << 7 | 0x70);
2831 				/* Valid,ErrorCode */
2832 				((u_int8_t *)&pccb->csio.sense_data)[2] = 0x05;
2833 				/* FileMark,EndOfMedia,IncorrectLength,Reserved,SenseKey */
2834 				((u_int8_t *)&pccb->csio.sense_data)[7] = 0x0A;
2835 				/* AdditionalSenseLength */
2836 				((u_int8_t *)&pccb->csio.sense_data)[12] = 0x20;
2837 				/* AdditionalSenseCode */
2838 				}
2839 				retvalue = ARCMSR_MESSAGE_FAIL;
2840 			} else {
2841 				my_empty_len = (wqbuf_firstindex-wqbuf_lastindex - 1)
2842 						&(ARCMSR_MAX_QBUFFER - 1);
2843 				if (my_empty_len >= user_len) {
2844 					while (user_len > 0) {
2845 						pQbuffer = &acb->wqbuffer[acb->wqbuf_lastindex];
2846 						*pQbuffer = *ptmpuserbuffer;
2847 						acb->wqbuf_lastindex++;
2848 						acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
2849 						ptmpuserbuffer++;
2850 						user_len--;
2851 					}
2852 					if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
2853 						acb->acb_flags &=
2854 						    ~ACB_F_MESSAGE_WQBUFFER_CLEARED;
2855 						arcmsr_Write_data_2iop_wqbuffer(acb);
2856 					}
2857 				} else {
2858 					/* has error report sensedata */
2859 					if(pccb->csio.sense_len) {
2860 					((u_int8_t *)&pccb->csio.sense_data)[0] = (0x1 << 7 | 0x70);
2861 					/* Valid,ErrorCode */
2862 					((u_int8_t *)&pccb->csio.sense_data)[2] = 0x05;
2863 					/* FileMark,EndOfMedia,IncorrectLength,Reserved,SenseKey */
2864 					((u_int8_t *)&pccb->csio.sense_data)[7] = 0x0A;
2865 					/* AdditionalSenseLength */
2866 					((u_int8_t *)&pccb->csio.sense_data)[12] = 0x20;
2867 					/* AdditionalSenseCode */
2868 					}
2869 					retvalue = ARCMSR_MESSAGE_FAIL;
2870 				}
2871 			}
2872 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2873 		}
2874 		break;
2875 	case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
2876 			u_int8_t *pQbuffer = acb->rqbuffer;
2877 
2878 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2879 			if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2880 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2881 				arcmsr_iop_message_read(acb);
2882 			}
2883 			acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
2884 			acb->rqbuf_firstindex = 0;
2885 			acb->rqbuf_lastindex = 0;
2886 			memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
2887 			pcmdmessagefld->cmdmessage.ReturnCode =
2888 			    ARCMSR_MESSAGE_RETURNCODE_OK;
2889 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2890 		}
2891 		break;
2892 	case ARCMSR_MESSAGE_CLEAR_WQBUFFER: {
2893 			u_int8_t *pQbuffer = acb->wqbuffer;
2894 
2895 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2896 			if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2897 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2898 				arcmsr_iop_message_read(acb);
2899 			}
2900 			acb->acb_flags |=
2901 				(ACB_F_MESSAGE_WQBUFFER_CLEARED |
2902 					ACB_F_MESSAGE_WQBUFFER_READ);
2903 			acb->wqbuf_firstindex = 0;
2904 			acb->wqbuf_lastindex = 0;
2905 			memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
2906 			pcmdmessagefld->cmdmessage.ReturnCode =
2907 				ARCMSR_MESSAGE_RETURNCODE_OK;
2908 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2909 		}
2910 		break;
2911 	case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: {
2912 			u_int8_t *pQbuffer;
2913 
2914 			ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
2915 			if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2916 				acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2917 				arcmsr_iop_message_read(acb);
2918 			}
2919 			acb->acb_flags |=
2920 				(ACB_F_MESSAGE_WQBUFFER_CLEARED
2921 				| ACB_F_MESSAGE_RQBUFFER_CLEARED
2922 				| ACB_F_MESSAGE_WQBUFFER_READ);
2923 			acb->rqbuf_firstindex = 0;
2924 			acb->rqbuf_lastindex = 0;
2925 			acb->wqbuf_firstindex = 0;
2926 			acb->wqbuf_lastindex = 0;
2927 			pQbuffer = acb->rqbuffer;
2928 			memset(pQbuffer, 0, sizeof (struct QBUFFER));
2929 			pQbuffer = acb->wqbuffer;
2930 			memset(pQbuffer, 0, sizeof (struct QBUFFER));
2931 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2932 			ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
2933 		}
2934 		break;
2935 	case ARCMSR_MESSAGE_REQUEST_RETURNCODE_3F: {
2936 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_3F;
2937 		}
2938 		break;
2939 	case ARCMSR_MESSAGE_SAY_HELLO: {
2940 			int8_t *hello_string = "Hello! I am ARCMSR";
2941 
2942 			memcpy(pcmdmessagefld->messagedatabuffer, hello_string
2943 				, (int16_t)strlen(hello_string));
2944 			pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
2945 		}
2946 		break;
2947 	case ARCMSR_MESSAGE_SAY_GOODBYE:
2948 		arcmsr_iop_parking(acb);
2949 		break;
2950 	case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE:
2951 		arcmsr_flush_adapter_cache(acb);
2952 		break;
2953 	default:
2954 		retvalue = ARCMSR_MESSAGE_FAIL;
2955 	}
2956 message_out:
2957 	return (retvalue);
2958 }
2959 /*
2960 *********************************************************************
2961 *********************************************************************
2962 */
2963 static void arcmsr_execute_srb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
2964 {
2965 	struct CommandControlBlock *srb = (struct CommandControlBlock *)arg;
2966 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *)srb->acb;
2967 	union ccb *pccb;
2968 	int target, lun;
2969 
2970 	pccb = srb->pccb;
2971 	target = pccb->ccb_h.target_id;
2972 	lun = pccb->ccb_h.target_lun;
2973 	acb->pktRequestCount++;
2974 	if(error != 0) {
2975 		if(error != EFBIG) {
2976 			printf("arcmsr%d: unexpected error %x"
2977 				" returned from 'bus_dmamap_load' \n"
2978 				, acb->pci_unit, error);
2979 		}
2980 		if((pccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INPROG) {
2981 			pccb->ccb_h.status |= CAM_REQ_TOO_BIG;
2982 		}
2983 		arcmsr_srb_complete(srb, 0);
2984 		return;
2985 	}
2986 	if(nseg > ARCMSR_MAX_SG_ENTRIES) {
2987 		pccb->ccb_h.status |= CAM_REQ_TOO_BIG;
2988 		arcmsr_srb_complete(srb, 0);
2989 		return;
2990 	}
2991 	if(acb->acb_flags & ACB_F_BUS_RESET) {
2992 		printf("arcmsr%d: bus reset and return busy \n", acb->pci_unit);
2993 		pccb->ccb_h.status |= CAM_SCSI_BUS_RESET;
2994 		arcmsr_srb_complete(srb, 0);
2995 		return;
2996 	}
2997 	if(acb->devstate[target][lun] == ARECA_RAID_GONE) {
2998 		u_int8_t block_cmd, cmd;
2999 
3000 		cmd = scsiio_cdb_ptr(&pccb->csio)[0];
3001 		block_cmd = cmd & 0x0f;
3002 		if(block_cmd == 0x08 || block_cmd == 0x0a) {
3003 			printf("arcmsr%d:block 'read/write' command "
3004 				"with gone raid volume Cmd=0x%2x, TargetId=%d, Lun=%d \n"
3005 				, acb->pci_unit, cmd, target, lun);
3006 			pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
3007 			arcmsr_srb_complete(srb, 0);
3008 			return;
3009 		}
3010 	}
3011 	if((pccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
3012 		if(nseg != 0) {
3013 			bus_dmamap_unload(acb->dm_segs_dmat, srb->dm_segs_dmamap);
3014 		}
3015 		arcmsr_srb_complete(srb, 0);
3016 		return;
3017 	}
3018 	if(acb->srboutstandingcount >= acb->maxOutstanding) {
3019 		if((acb->acb_flags & ACB_F_CAM_DEV_QFRZN) == 0)
3020 		{
3021 			xpt_freeze_simq(acb->psim, 1);
3022 			acb->acb_flags |= ACB_F_CAM_DEV_QFRZN;
3023 		}
3024 		pccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3025 		pccb->ccb_h.status |= CAM_REQUEUE_REQ;
3026 		arcmsr_srb_complete(srb, 0);
3027 		return;
3028 	}
3029 	pccb->ccb_h.status |= CAM_SIM_QUEUED;
3030 	arcmsr_build_srb(srb, dm_segs, nseg);
3031 	arcmsr_post_srb(acb, srb);
3032 	if (pccb->ccb_h.timeout != CAM_TIME_INFINITY)
3033 	{
3034 		arcmsr_callout_init(&srb->ccb_callout);
3035 		callout_reset_sbt(&srb->ccb_callout, SBT_1MS *
3036 		    (pccb->ccb_h.timeout + (ARCMSR_TIMEOUT_DELAY * 1000)), 0,
3037 		    arcmsr_srb_timeout, srb, 0);
3038 		srb->srb_flags |= SRB_FLAG_TIMER_START;
3039 	}
3040 }
3041 /*
3042 *****************************************************************************************
3043 *****************************************************************************************
3044 */
3045 static u_int8_t arcmsr_seek_cmd2abort(union ccb *abortccb)
3046 {
3047 	struct CommandControlBlock *srb;
3048 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *) abortccb->ccb_h.arcmsr_ccbacb_ptr;
3049 	u_int32_t intmask_org;
3050 	int i = 0;
3051 
3052 	acb->num_aborts++;
3053 	/*
3054 	***************************************************************************
3055 	** It is the upper layer do abort command this lock just prior to calling us.
3056 	** First determine if we currently own this command.
3057 	** Start by searching the device queue. If not found
3058 	** at all, and the system wanted us to just abort the
3059 	** command return success.
3060 	***************************************************************************
3061 	*/
3062 	if(acb->srboutstandingcount != 0) {
3063 		/* disable all outbound interrupt */
3064 		intmask_org = arcmsr_disable_allintr(acb);
3065 		for(i=0; i < ARCMSR_MAX_FREESRB_NUM; i++) {
3066 			srb = acb->psrb_pool[i];
3067 			if(srb->srb_state == ARCMSR_SRB_START) {
3068 				if(srb->pccb == abortccb) {
3069 					srb->srb_state = ARCMSR_SRB_ABORTED;
3070 					printf("arcmsr%d:scsi id=%d lun=%jx abort srb '%p'"
3071 						"outstanding command \n"
3072 						, acb->pci_unit, abortccb->ccb_h.target_id
3073 						, (uintmax_t)abortccb->ccb_h.target_lun, srb);
3074 					arcmsr_polling_srbdone(acb, srb);
3075 					/* enable outbound Post Queue, outbound doorbell Interrupt */
3076 					arcmsr_enable_allintr(acb, intmask_org);
3077 					return (TRUE);
3078 				}
3079 			}
3080 		}
3081 		/* enable outbound Post Queue, outbound doorbell Interrupt */
3082 		arcmsr_enable_allintr(acb, intmask_org);
3083 	}
3084 	return(FALSE);
3085 }
3086 /*
3087 ****************************************************************************
3088 ****************************************************************************
3089 */
3090 static void arcmsr_bus_reset(struct AdapterControlBlock *acb)
3091 {
3092 	int retry = 0;
3093 
3094 	acb->num_resets++;
3095 	acb->acb_flags |= ACB_F_BUS_RESET;
3096 	while(acb->srboutstandingcount != 0 && retry < 400) {
3097 		arcmsr_interrupt(acb);
3098 		UDELAY(25000);
3099 		retry++;
3100 	}
3101 	arcmsr_iop_reset(acb);
3102 	acb->acb_flags &= ~ACB_F_BUS_RESET;
3103 }
3104 /*
3105 **************************************************************************
3106 **************************************************************************
3107 */
3108 static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb,
3109 		union ccb *pccb)
3110 {
3111 	if (pccb->ccb_h.target_lun) {
3112 		pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
3113 		xpt_done(pccb);
3114 		return;
3115 	}
3116 	pccb->ccb_h.status |= CAM_REQ_CMP;
3117 	switch (scsiio_cdb_ptr(&pccb->csio)[0]) {
3118 	case INQUIRY: {
3119 		unsigned char inqdata[36];
3120 		char *buffer = pccb->csio.data_ptr;
3121 
3122 		inqdata[0] = T_PROCESSOR;	/* Periph Qualifier & Periph Dev Type */
3123 		inqdata[1] = 0;			/* rem media bit & Dev Type Modifier */
3124 		inqdata[2] = 0;			/* ISO, ECMA, & ANSI versions */
3125 		inqdata[3] = 0;
3126 		inqdata[4] = 31;		/* length of additional data */
3127 		inqdata[5] = 0;
3128 		inqdata[6] = 0;
3129 		inqdata[7] = 0;
3130 		strncpy(&inqdata[8], "Areca   ", 8);	/* Vendor Identification */
3131 		strncpy(&inqdata[16], "RAID controller ", 16);	/* Product Identification */
3132 		strncpy(&inqdata[32], "R001", 4); /* Product Revision */
3133 		memcpy(buffer, inqdata, sizeof(inqdata));
3134 		xpt_done(pccb);
3135 	}
3136 	break;
3137 	case WRITE_BUFFER:
3138 	case READ_BUFFER: {
3139 		if (arcmsr_iop_message_xfer(acb, pccb)) {
3140 			pccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
3141 			pccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
3142 		}
3143 		xpt_done(pccb);
3144 	}
3145 	break;
3146 	default:
3147 		xpt_done(pccb);
3148 	}
3149 }
3150 /*
3151 *********************************************************************
3152 *********************************************************************
3153 */
3154 static void arcmsr_action(struct cam_sim *psim, union ccb *pccb)
3155 {
3156 	struct AdapterControlBlock *acb;
3157 
3158 	acb = (struct AdapterControlBlock *) cam_sim_softc(psim);
3159 	if(acb == NULL) {
3160 		pccb->ccb_h.status |= CAM_REQ_INVALID;
3161 		xpt_done(pccb);
3162 		return;
3163 	}
3164 	switch (pccb->ccb_h.func_code) {
3165 	case XPT_SCSI_IO: {
3166 			struct CommandControlBlock *srb;
3167 			int target = pccb->ccb_h.target_id;
3168 			int error;
3169 
3170 			if (pccb->ccb_h.flags & CAM_CDB_PHYS) {
3171 				pccb->ccb_h.status = CAM_REQ_INVALID;
3172 				xpt_done(pccb);
3173 				return;
3174 			}
3175 
3176 			if(target == ARCMSR_VIRTUAL_DEVICE_ID) {
3177 				/* virtual device for iop message transfer */
3178 				arcmsr_handle_virtual_command(acb, pccb);
3179 				return;
3180 			}
3181 			if((srb = arcmsr_get_freesrb(acb)) == NULL) {
3182 				pccb->ccb_h.status |= CAM_RESRC_UNAVAIL;
3183 				xpt_done(pccb);
3184 				return;
3185 			}
3186 			pccb->ccb_h.arcmsr_ccbsrb_ptr = srb;
3187 			pccb->ccb_h.arcmsr_ccbacb_ptr = acb;
3188 			srb->pccb = pccb;
3189 			error =	bus_dmamap_load_ccb(acb->dm_segs_dmat
3190 				, srb->dm_segs_dmamap
3191 				, pccb
3192 				, arcmsr_execute_srb, srb, /*flags*/0);
3193 			if(error == EINPROGRESS) {
3194 				xpt_freeze_simq(acb->psim, 1);
3195 				pccb->ccb_h.status |= CAM_RELEASE_SIMQ;
3196 			}
3197 			break;
3198 		}
3199 	case XPT_PATH_INQ: {
3200 			struct ccb_pathinq *cpi = &pccb->cpi;
3201 
3202 			cpi->version_num = 1;
3203 			cpi->hba_inquiry = PI_SDTR_ABLE | PI_TAG_ABLE;
3204 			cpi->target_sprt = 0;
3205 			cpi->hba_misc = 0;
3206 			cpi->hba_eng_cnt = 0;
3207 			cpi->max_target = ARCMSR_MAX_TARGETID;        /* 0-16 */
3208 			cpi->max_lun = ARCMSR_MAX_TARGETLUN;	    /* 0-7 */
3209 			cpi->initiator_id = ARCMSR_SCSI_INITIATOR_ID; /* 255 */
3210 			cpi->bus_id = cam_sim_bus(psim);
3211 			strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
3212 			strlcpy(cpi->hba_vid, "ARCMSR", HBA_IDLEN);
3213 			strlcpy(cpi->dev_name, cam_sim_name(psim), DEV_IDLEN);
3214 			cpi->unit_number = cam_sim_unit(psim);
3215 			if(acb->adapter_bus_speed == ACB_BUS_SPEED_12G)
3216 				cpi->base_transfer_speed = 1200000;
3217 			else if(acb->adapter_bus_speed == ACB_BUS_SPEED_6G)
3218 				cpi->base_transfer_speed = 600000;
3219 			else
3220 				cpi->base_transfer_speed = 300000;
3221 			if((acb->vendor_device_id == PCIDevVenIDARC1880) ||
3222 			   (acb->vendor_device_id == PCIDevVenIDARC1883) ||
3223 			   (acb->vendor_device_id == PCIDevVenIDARC1884) ||
3224 			   (acb->vendor_device_id == PCIDevVenIDARC1886) ||
3225 			   (acb->vendor_device_id == PCIDevVenIDARC1680) ||
3226 			   (acb->vendor_device_id == PCIDevVenIDARC1214))
3227 			{
3228 				cpi->transport = XPORT_SAS;
3229 				cpi->transport_version = 0;
3230 				cpi->protocol_version = SCSI_REV_SPC2;
3231 			}
3232 			else
3233 			{
3234 				cpi->transport = XPORT_SPI;
3235 				cpi->transport_version = 2;
3236 				cpi->protocol_version = SCSI_REV_2;
3237 			}
3238 			cpi->protocol = PROTO_SCSI;
3239 			cpi->ccb_h.status |= CAM_REQ_CMP;
3240 			xpt_done(pccb);
3241 			break;
3242 		}
3243 	case XPT_ABORT: {
3244 			union ccb *pabort_ccb;
3245 
3246 			pabort_ccb = pccb->cab.abort_ccb;
3247 			switch (pabort_ccb->ccb_h.func_code) {
3248 			case XPT_ACCEPT_TARGET_IO:
3249 			case XPT_CONT_TARGET_IO:
3250 				if(arcmsr_seek_cmd2abort(pabort_ccb)==TRUE) {
3251 					pabort_ccb->ccb_h.status |= CAM_REQ_ABORTED;
3252 					xpt_done(pabort_ccb);
3253 					pccb->ccb_h.status |= CAM_REQ_CMP;
3254 				} else {
3255 					xpt_print_path(pabort_ccb->ccb_h.path);
3256 					printf("Not found\n");
3257 					pccb->ccb_h.status |= CAM_PATH_INVALID;
3258 				}
3259 				break;
3260 			case XPT_SCSI_IO:
3261 				pccb->ccb_h.status |= CAM_UA_ABORT;
3262 				break;
3263 			default:
3264 				pccb->ccb_h.status |= CAM_REQ_INVALID;
3265 				break;
3266 			}
3267 			xpt_done(pccb);
3268 			break;
3269 		}
3270 	case XPT_RESET_BUS:
3271 	case XPT_RESET_DEV: {
3272 			u_int32_t	i;
3273 
3274 			arcmsr_bus_reset(acb);
3275 			for (i=0; i < 500; i++) {
3276 				DELAY(1000);
3277 			}
3278 			pccb->ccb_h.status |= CAM_REQ_CMP;
3279 			xpt_done(pccb);
3280 			break;
3281 		}
3282 	case XPT_TERM_IO: {
3283 			pccb->ccb_h.status |= CAM_REQ_INVALID;
3284 			xpt_done(pccb);
3285 			break;
3286 		}
3287 	case XPT_GET_TRAN_SETTINGS: {
3288 			struct ccb_trans_settings *cts;
3289 
3290 			if(pccb->ccb_h.target_id == ARCMSR_VIRTUAL_DEVICE_ID) {
3291 				pccb->ccb_h.status |= CAM_FUNC_NOTAVAIL;
3292 				xpt_done(pccb);
3293 				break;
3294 			}
3295 			cts = &pccb->cts;
3296 			{
3297 				struct ccb_trans_settings_scsi *scsi;
3298 				struct ccb_trans_settings_spi *spi;
3299 				struct ccb_trans_settings_sas *sas;
3300 
3301 				scsi = &cts->proto_specific.scsi;
3302 				scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3303 				scsi->valid = CTS_SCSI_VALID_TQ;
3304 				cts->protocol = PROTO_SCSI;
3305 
3306 				if((acb->vendor_device_id == PCIDevVenIDARC1880) ||
3307 				   (acb->vendor_device_id == PCIDevVenIDARC1883) ||
3308 				   (acb->vendor_device_id == PCIDevVenIDARC1884) ||
3309 				   (acb->vendor_device_id == PCIDevVenIDARC1886) ||
3310 				   (acb->vendor_device_id == PCIDevVenIDARC1680) ||
3311 				   (acb->vendor_device_id == PCIDevVenIDARC1214))
3312 				{
3313 					cts->protocol_version = SCSI_REV_SPC2;
3314 					cts->transport_version = 0;
3315 					cts->transport = XPORT_SAS;
3316 					sas = &cts->xport_specific.sas;
3317 					sas->valid = CTS_SAS_VALID_SPEED;
3318 					if (acb->adapter_bus_speed == ACB_BUS_SPEED_12G)
3319 						sas->bitrate = 1200000;
3320 					else if(acb->adapter_bus_speed == ACB_BUS_SPEED_6G)
3321 						sas->bitrate = 600000;
3322 					else if(acb->adapter_bus_speed == ACB_BUS_SPEED_3G)
3323 						sas->bitrate = 300000;
3324 				}
3325 				else
3326 				{
3327 					cts->protocol_version = SCSI_REV_2;
3328 					cts->transport_version = 2;
3329 					cts->transport = XPORT_SPI;
3330 					spi = &cts->xport_specific.spi;
3331 					spi->flags = CTS_SPI_FLAGS_DISC_ENB;
3332 					if (acb->adapter_bus_speed == ACB_BUS_SPEED_6G)
3333 						spi->sync_period = 1;
3334 					else
3335 						spi->sync_period = 2;
3336 					spi->sync_offset = 32;
3337 					spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3338 					spi->valid = CTS_SPI_VALID_DISC
3339 						| CTS_SPI_VALID_SYNC_RATE
3340 						| CTS_SPI_VALID_SYNC_OFFSET
3341 						| CTS_SPI_VALID_BUS_WIDTH;
3342 				}
3343 			}
3344 			pccb->ccb_h.status |= CAM_REQ_CMP;
3345 			xpt_done(pccb);
3346 			break;
3347 		}
3348 	case XPT_SET_TRAN_SETTINGS: {
3349 			pccb->ccb_h.status |= CAM_FUNC_NOTAVAIL;
3350 			xpt_done(pccb);
3351 			break;
3352 		}
3353 	case XPT_CALC_GEOMETRY:
3354 			if(pccb->ccb_h.target_id == ARCMSR_VIRTUAL_DEVICE_ID) {
3355 				pccb->ccb_h.status |= CAM_FUNC_NOTAVAIL;
3356 				xpt_done(pccb);
3357 				break;
3358 			}
3359 			cam_calc_geometry(&pccb->ccg, 1);
3360 			xpt_done(pccb);
3361 			break;
3362 	default:
3363 		pccb->ccb_h.status |= CAM_REQ_INVALID;
3364 		xpt_done(pccb);
3365 		break;
3366 	}
3367 }
3368 /*
3369 **********************************************************************
3370 **********************************************************************
3371 */
3372 static void arcmsr_start_hba_bgrb(struct AdapterControlBlock *acb)
3373 {
3374 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3375 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_START_BGRB);
3376 	if(!arcmsr_hba_wait_msgint_ready(acb)) {
3377 		printf("arcmsr%d: wait 'start adapter background rebuild' timeout \n", acb->pci_unit);
3378 	}
3379 }
3380 /*
3381 **********************************************************************
3382 **********************************************************************
3383 */
3384 static void arcmsr_start_hbb_bgrb(struct AdapterControlBlock *acb)
3385 {
3386 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
3387 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3388 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_START_BGRB);
3389 	if(!arcmsr_hbb_wait_msgint_ready(acb)) {
3390 		printf( "arcmsr%d: wait 'start adapter background rebuild' timeout \n", acb->pci_unit);
3391 	}
3392 }
3393 /*
3394 **********************************************************************
3395 **********************************************************************
3396 */
3397 static void arcmsr_start_hbc_bgrb(struct AdapterControlBlock *acb)
3398 {
3399 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3400 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_START_BGRB);
3401 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
3402 	if(!arcmsr_hbc_wait_msgint_ready(acb)) {
3403 		printf("arcmsr%d: wait 'start adapter background rebuild' timeout \n", acb->pci_unit);
3404 	}
3405 }
3406 /*
3407 **********************************************************************
3408 **********************************************************************
3409 */
3410 static void arcmsr_start_hbd_bgrb(struct AdapterControlBlock *acb)
3411 {
3412 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3413 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_START_BGRB);
3414 	if(!arcmsr_hbd_wait_msgint_ready(acb)) {
3415 		printf("arcmsr%d: wait 'start adapter background rebuild' timeout \n", acb->pci_unit);
3416 	}
3417 }
3418 /*
3419 **********************************************************************
3420 **********************************************************************
3421 */
3422 static void arcmsr_start_hbe_bgrb(struct AdapterControlBlock *acb)
3423 {
3424 	acb->acb_flags |= ACB_F_MSG_START_BGRB;
3425 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_START_BGRB);
3426 	acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
3427 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
3428 	if(!arcmsr_hbe_wait_msgint_ready(acb)) {
3429 		printf("arcmsr%d: wait 'start adapter background rebuild' timeout \n", acb->pci_unit);
3430 	}
3431 }
3432 /*
3433 **********************************************************************
3434 **********************************************************************
3435 */
3436 static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb)
3437 {
3438 	switch (acb->adapter_type) {
3439 	case ACB_ADAPTER_TYPE_A:
3440 		arcmsr_start_hba_bgrb(acb);
3441 		break;
3442 	case ACB_ADAPTER_TYPE_B:
3443 		arcmsr_start_hbb_bgrb(acb);
3444 		break;
3445 	case ACB_ADAPTER_TYPE_C:
3446 		arcmsr_start_hbc_bgrb(acb);
3447 		break;
3448 	case ACB_ADAPTER_TYPE_D:
3449 		arcmsr_start_hbd_bgrb(acb);
3450 		break;
3451 	case ACB_ADAPTER_TYPE_E:
3452 	case ACB_ADAPTER_TYPE_F:
3453 		arcmsr_start_hbe_bgrb(acb);
3454 		break;
3455 	}
3456 }
3457 /*
3458 **********************************************************************
3459 **
3460 **********************************************************************
3461 */
3462 static void arcmsr_polling_hba_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
3463 {
3464 	struct CommandControlBlock *srb;
3465 	u_int32_t flag_srb, outbound_intstatus, poll_srb_done=0, poll_count=0;
3466 	u_int16_t	error;
3467 
3468 polling_ccb_retry:
3469 	poll_count++;
3470 	outbound_intstatus=CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_intstatus) & acb->outbound_int_enable;
3471 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intstatus, outbound_intstatus);	/*clear interrupt*/
3472 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
3473 	while(1) {
3474 		if((flag_srb = CHIP_REG_READ32(HBA_MessageUnit,
3475 			0, outbound_queueport)) == 0xFFFFFFFF) {
3476 			if(poll_srb_done) {
3477 				break;/*chip FIFO no ccb for completion already*/
3478 			} else {
3479 				UDELAY(25000);
3480 				if ((poll_count > 100) && (poll_srb != NULL)) {
3481 					break;
3482 				}
3483 				goto polling_ccb_retry;
3484 			}
3485 		}
3486 		/* check if command done with no error*/
3487 		srb = (struct CommandControlBlock *)
3488 			(acb->vir2phy_offset+(flag_srb << 5));/*frame must be 32 bytes aligned*/
3489 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0)?TRUE:FALSE;
3490 		poll_srb_done = (srb == poll_srb) ? 1:0;
3491 		if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
3492 			if(srb->srb_state == ARCMSR_SRB_ABORTED) {
3493 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p'"
3494 					"poll command abort successfully \n"
3495 					, acb->pci_unit
3496 					, srb->pccb->ccb_h.target_id
3497 					, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
3498 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
3499 				arcmsr_srb_complete(srb, 1);
3500 				continue;
3501 			}
3502 			printf("arcmsr%d: polling get an illegal srb command done srb='%p'"
3503 				"srboutstandingcount=%d \n"
3504 				, acb->pci_unit
3505 				, srb, acb->srboutstandingcount);
3506 			continue;
3507 		}
3508 		arcmsr_report_srb_state(acb, srb, error);
3509 	}	/*drain reply FIFO*/
3510 }
3511 /*
3512 **********************************************************************
3513 **
3514 **********************************************************************
3515 */
3516 static void arcmsr_polling_hbb_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
3517 {
3518 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
3519 	struct CommandControlBlock *srb;
3520 	u_int32_t flag_srb, poll_srb_done=0, poll_count=0;
3521 	int index;
3522 	u_int16_t	error;
3523 
3524 polling_ccb_retry:
3525 	poll_count++;
3526 	WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_DOORBELL_INT_CLEAR_PATTERN); /* clear doorbell interrupt */
3527 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
3528 	while(1) {
3529 		index = phbbmu->doneq_index;
3530 		if((flag_srb = phbbmu->done_qbuffer[index]) == 0) {
3531 			if(poll_srb_done) {
3532 				break;/*chip FIFO no ccb for completion already*/
3533 			} else {
3534 				UDELAY(25000);
3535 				if ((poll_count > 100) && (poll_srb != NULL)) {
3536 					break;
3537 				}
3538 				goto polling_ccb_retry;
3539 			}
3540 		}
3541 		phbbmu->done_qbuffer[index] = 0;
3542 		index++;
3543 		index %= ARCMSR_MAX_HBB_POSTQUEUE;     /*if last index number set it to 0 */
3544 		phbbmu->doneq_index = index;
3545 		/* check if command done with no error*/
3546 		srb = (struct CommandControlBlock *)
3547 			(acb->vir2phy_offset+(flag_srb << 5));/*frame must be 32 bytes aligned*/
3548 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE0)?TRUE:FALSE;
3549 		poll_srb_done = (srb == poll_srb) ? 1:0;
3550 		if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
3551 			if(srb->srb_state == ARCMSR_SRB_ABORTED) {
3552 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p'"
3553 					"poll command abort successfully \n"
3554 					, acb->pci_unit
3555 					, srb->pccb->ccb_h.target_id
3556 					, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
3557 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
3558 				arcmsr_srb_complete(srb, 1);
3559 				continue;
3560 			}
3561 			printf("arcmsr%d: polling get an illegal srb command done srb='%p'"
3562 				"srboutstandingcount=%d \n"
3563 				, acb->pci_unit
3564 				, srb, acb->srboutstandingcount);
3565 			continue;
3566 		}
3567 		arcmsr_report_srb_state(acb, srb, error);
3568 	}	/*drain reply FIFO*/
3569 }
3570 /*
3571 **********************************************************************
3572 **
3573 **********************************************************************
3574 */
3575 static void arcmsr_polling_hbc_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
3576 {
3577 	struct CommandControlBlock *srb;
3578 	u_int32_t flag_srb, poll_srb_done=0, poll_count=0;
3579 	u_int16_t	error;
3580 
3581 polling_ccb_retry:
3582 	poll_count++;
3583 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
3584 	while(1) {
3585 		if(!(CHIP_REG_READ32(HBC_MessageUnit, 0, host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR)) {
3586 			if(poll_srb_done) {
3587 				break;/*chip FIFO no ccb for completion already*/
3588 			} else {
3589 				UDELAY(25000);
3590 				if ((poll_count > 100) && (poll_srb != NULL)) {
3591 					break;
3592 				}
3593 				if (acb->srboutstandingcount == 0) {
3594 					break;
3595 				}
3596 				goto polling_ccb_retry;
3597 			}
3598 		}
3599 		flag_srb = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_queueport_low);
3600 		/* check if command done with no error*/
3601 		srb = (struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb & 0xFFFFFFE0));/*frame must be 32 bytes aligned*/
3602 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1)?TRUE:FALSE;
3603 		if (poll_srb != NULL)
3604 			poll_srb_done = (srb == poll_srb) ? 1:0;
3605 		if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
3606 			if(srb->srb_state == ARCMSR_SRB_ABORTED) {
3607 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p'poll command abort successfully \n"
3608 						, acb->pci_unit, srb->pccb->ccb_h.target_id, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
3609 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
3610 				arcmsr_srb_complete(srb, 1);
3611 				continue;
3612 			}
3613 			printf("arcmsr%d: polling get an illegal srb command done srb='%p'srboutstandingcount=%d \n"
3614 					, acb->pci_unit, srb, acb->srboutstandingcount);
3615 			continue;
3616 		}
3617 		arcmsr_report_srb_state(acb, srb, error);
3618 	}	/*drain reply FIFO*/
3619 }
3620 /*
3621 **********************************************************************
3622 **
3623 **********************************************************************
3624 */
3625 static void arcmsr_polling_hbd_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
3626 {
3627 	struct HBD_MessageUnit0 *phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
3628 	struct CommandControlBlock *srb;
3629 	u_int32_t flag_srb, poll_srb_done=0, poll_count=0;
3630 	u_int32_t outbound_write_pointer;
3631 	u_int16_t	error, doneq_index;
3632 
3633 polling_ccb_retry:
3634 	poll_count++;
3635 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
3636 	while(1) {
3637 		outbound_write_pointer = phbdmu->done_qbuffer[0].addressLow;
3638 		doneq_index = phbdmu->doneq_index;
3639 		if ((outbound_write_pointer & 0xFF) == (doneq_index & 0xFF)) {
3640 			if(poll_srb_done) {
3641 				break;/*chip FIFO no ccb for completion already*/
3642 			} else {
3643 				UDELAY(25000);
3644 				if ((poll_count > 100) && (poll_srb != NULL)) {
3645 					break;
3646 				}
3647 				if (acb->srboutstandingcount == 0) {
3648 					break;
3649 				}
3650 				goto polling_ccb_retry;
3651 			}
3652 		}
3653 		doneq_index = arcmsr_get_doneq_index(phbdmu);
3654 		flag_srb = phbdmu->done_qbuffer[(doneq_index & 0xFF)+1].addressLow;
3655 		/* check if command done with no error*/
3656 		srb = (struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb & 0xFFFFFFE0));/*frame must be 32 bytes aligned*/
3657 		error = (flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1) ? TRUE : FALSE;
3658 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, outboundlist_read_pointer, doneq_index);
3659 		if (poll_srb != NULL)
3660 			poll_srb_done = (srb == poll_srb) ? 1:0;
3661 		if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
3662 			if(srb->srb_state == ARCMSR_SRB_ABORTED) {
3663 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p'poll command abort successfully \n"
3664 						, acb->pci_unit, srb->pccb->ccb_h.target_id, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
3665 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
3666 				arcmsr_srb_complete(srb, 1);
3667 				continue;
3668 			}
3669 			printf("arcmsr%d: polling get an illegal srb command done srb='%p'srboutstandingcount=%d \n"
3670 					, acb->pci_unit, srb, acb->srboutstandingcount);
3671 			continue;
3672 		}
3673 		arcmsr_report_srb_state(acb, srb, error);
3674 	}	/*drain reply FIFO*/
3675 }
3676 /*
3677 **********************************************************************
3678 **
3679 **********************************************************************
3680 */
3681 static void arcmsr_polling_hbe_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
3682 {
3683 	struct CommandControlBlock *srb;
3684 	u_int32_t poll_srb_done=0, poll_count=0, doneq_index;
3685 	u_int16_t	error, cmdSMID;
3686 
3687 polling_ccb_retry:
3688 	poll_count++;
3689 	bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
3690 	while(1) {
3691 		doneq_index = acb->doneq_index;
3692 		if((CHIP_REG_READ32(HBE_MessageUnit, 0, reply_post_producer_index) & 0xFFFF) == doneq_index) {
3693 			if(poll_srb_done) {
3694 				break;/*chip FIFO no ccb for completion already*/
3695 			} else {
3696 				UDELAY(25000);
3697 				if ((poll_count > 100) && (poll_srb != NULL)) {
3698 					break;
3699 				}
3700 				if (acb->srboutstandingcount == 0) {
3701 					break;
3702 				}
3703 				goto polling_ccb_retry;
3704 			}
3705 		}
3706 		cmdSMID = acb->pCompletionQ[doneq_index].cmdSMID;
3707 		doneq_index++;
3708 		if (doneq_index >= acb->completionQ_entry)
3709 			doneq_index = 0;
3710 		acb->doneq_index = doneq_index;
3711 		srb = acb->psrb_pool[cmdSMID];
3712 		error = (acb->pCompletionQ[doneq_index].cmdFlag & ARCMSR_SRBREPLY_FLAG_ERROR_MODE1) ? TRUE : FALSE;
3713 		if (poll_srb != NULL)
3714 			poll_srb_done = (srb == poll_srb) ? 1:0;
3715 		if((srb->acb != acb) || (srb->srb_state != ARCMSR_SRB_START)) {
3716 			if(srb->srb_state == ARCMSR_SRB_ABORTED) {
3717 				printf("arcmsr%d: scsi id=%d lun=%jx srb='%p'poll command abort successfully \n"
3718 						, acb->pci_unit, srb->pccb->ccb_h.target_id, (uintmax_t)srb->pccb->ccb_h.target_lun, srb);
3719 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
3720 				arcmsr_srb_complete(srb, 1);
3721 				continue;
3722 			}
3723 			printf("arcmsr%d: polling get an illegal srb command done srb='%p'srboutstandingcount=%d \n"
3724 					, acb->pci_unit, srb, acb->srboutstandingcount);
3725 			continue;
3726 		}
3727 		arcmsr_report_srb_state(acb, srb, error);
3728 	}	/*drain reply FIFO*/
3729 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, reply_post_producer_index, doneq_index);
3730 }
3731 /*
3732 **********************************************************************
3733 **********************************************************************
3734 */
3735 static void arcmsr_polling_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
3736 {
3737 	switch (acb->adapter_type) {
3738 	case ACB_ADAPTER_TYPE_A:
3739 		arcmsr_polling_hba_srbdone(acb, poll_srb);
3740 		break;
3741 	case ACB_ADAPTER_TYPE_B:
3742 		arcmsr_polling_hbb_srbdone(acb, poll_srb);
3743 		break;
3744 	case ACB_ADAPTER_TYPE_C:
3745 		arcmsr_polling_hbc_srbdone(acb, poll_srb);
3746 		break;
3747 	case ACB_ADAPTER_TYPE_D:
3748 		arcmsr_polling_hbd_srbdone(acb, poll_srb);
3749 		break;
3750 	case ACB_ADAPTER_TYPE_E:
3751 	case ACB_ADAPTER_TYPE_F:
3752 		arcmsr_polling_hbe_srbdone(acb, poll_srb);
3753 		break;
3754 	}
3755 }
3756 /*
3757 **********************************************************************
3758 **********************************************************************
3759 */
3760 static void arcmsr_get_hba_config(struct AdapterControlBlock *acb)
3761 {
3762 	char *acb_firm_model = acb->firm_model;
3763 	char *acb_firm_version = acb->firm_version;
3764 	char *acb_device_map = acb->device_map;
3765 	size_t iop_firm_model = offsetof(struct HBA_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);	/*firm_model,15,60-67*/
3766 	size_t iop_firm_version = offsetof(struct HBA_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]);	/*firm_version,17,68-83*/
3767 	size_t iop_device_map = offsetof(struct HBA_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3768 	int i;
3769 
3770 	CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
3771 	if(!arcmsr_hba_wait_msgint_ready(acb)) {
3772 		printf("arcmsr%d: wait 'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3773 	}
3774 	i = 0;
3775 	while(i < 8) {
3776 		*acb_firm_model = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_model+i);
3777 		/* 8 bytes firm_model, 15, 60-67*/
3778 		acb_firm_model++;
3779 		i++;
3780 	}
3781 	i=0;
3782 	while(i < 16) {
3783 		*acb_firm_version = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_version+i);
3784 		/* 16 bytes firm_version, 17, 68-83*/
3785 		acb_firm_version++;
3786 		i++;
3787 	}
3788 	i=0;
3789 	while(i < 16) {
3790 		*acb_device_map = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_device_map+i);
3791 		acb_device_map++;
3792 		i++;
3793 	}
3794 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3795 	acb->firm_request_len = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[1]);   /*firm_request_len, 1, 04-07*/
3796 	acb->firm_numbers_queue = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[2]); /*firm_numbers_queue, 2, 08-11*/
3797 	acb->firm_sdram_size = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[3]);    /*firm_sdram_size, 3, 12-15*/
3798 	acb->firm_ide_channels = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[4]);  /*firm_ide_channels, 4, 16-19*/
3799 	acb->firm_cfg_version = CHIP_REG_READ32(HBA_MessageUnit, 0, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
3800 	if(acb->firm_numbers_queue > ARCMSR_MAX_OUTSTANDING_CMD)
3801 		acb->maxOutstanding = ARCMSR_MAX_OUTSTANDING_CMD - 1;
3802 	else
3803 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
3804 }
3805 /*
3806 **********************************************************************
3807 **********************************************************************
3808 */
3809 static void arcmsr_get_hbb_config(struct AdapterControlBlock *acb)
3810 {
3811 	struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
3812 	char *acb_firm_model = acb->firm_model;
3813 	char *acb_firm_version = acb->firm_version;
3814 	char *acb_device_map = acb->device_map;
3815 	size_t iop_firm_model = offsetof(struct HBB_RWBUFFER, msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);	/*firm_model,15,60-67*/
3816 	size_t iop_firm_version = offsetof(struct HBB_RWBUFFER, msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]);	/*firm_version,17,68-83*/
3817 	size_t iop_device_map = offsetof(struct HBB_RWBUFFER, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3818 	int i;
3819 
3820 	WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_GET_CONFIG);
3821 	if(!arcmsr_hbb_wait_msgint_ready(acb)) {
3822 		printf( "arcmsr%d: wait" "'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3823 	}
3824 	i = 0;
3825 	while(i < 8) {
3826 		*acb_firm_model = bus_space_read_1(acb->btag[1], acb->bhandle[1], iop_firm_model+i);
3827 		/* 8 bytes firm_model, 15, 60-67*/
3828 		acb_firm_model++;
3829 		i++;
3830 	}
3831 	i = 0;
3832 	while(i < 16) {
3833 		*acb_firm_version = bus_space_read_1(acb->btag[1], acb->bhandle[1], iop_firm_version+i);
3834 		/* 16 bytes firm_version, 17, 68-83*/
3835 		acb_firm_version++;
3836 		i++;
3837 	}
3838 	i = 0;
3839 	while(i < 16) {
3840 		*acb_device_map = bus_space_read_1(acb->btag[1], acb->bhandle[1], iop_device_map+i);
3841 		acb_device_map++;
3842 		i++;
3843 	}
3844 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3845 	acb->firm_request_len = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[1]);   /*firm_request_len, 1, 04-07*/
3846 	acb->firm_numbers_queue = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[2]); /*firm_numbers_queue, 2, 08-11*/
3847 	acb->firm_sdram_size = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[3]);    /*firm_sdram_size, 3, 12-15*/
3848 	acb->firm_ide_channels = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[4]);  /*firm_ide_channels, 4, 16-19*/
3849 	acb->firm_cfg_version = CHIP_REG_READ32(HBB_RWBUFFER, 1, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
3850 	if(acb->firm_numbers_queue > ARCMSR_MAX_HBB_POSTQUEUE)
3851 		acb->maxOutstanding = ARCMSR_MAX_HBB_POSTQUEUE - 1;
3852 	else
3853 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
3854 }
3855 /*
3856 **********************************************************************
3857 **********************************************************************
3858 */
3859 static void arcmsr_get_hbc_config(struct AdapterControlBlock *acb)
3860 {
3861 	char *acb_firm_model = acb->firm_model;
3862 	char *acb_firm_version = acb->firm_version;
3863 	char *acb_device_map = acb->device_map;
3864 	size_t iop_firm_model = offsetof(struct HBC_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);   /*firm_model,15,60-67*/
3865 	size_t iop_firm_version = offsetof(struct HBC_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]); /*firm_version,17,68-83*/
3866 	size_t iop_device_map = offsetof(struct HBC_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3867 	int i;
3868 
3869 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
3870 	CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
3871 	if(!arcmsr_hbc_wait_msgint_ready(acb)) {
3872 		printf("arcmsr%d: wait 'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3873 	}
3874 	i = 0;
3875 	while(i < 8) {
3876 		*acb_firm_model = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_model+i);
3877 		/* 8 bytes firm_model, 15, 60-67*/
3878 		acb_firm_model++;
3879 		i++;
3880 	}
3881 	i = 0;
3882 	while(i < 16) {
3883 		*acb_firm_version = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_version+i);
3884 		/* 16 bytes firm_version, 17, 68-83*/
3885 		acb_firm_version++;
3886 		i++;
3887 	}
3888 	i = 0;
3889 	while(i < 16) {
3890 		*acb_device_map = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_device_map+i);
3891 		acb_device_map++;
3892 		i++;
3893 	}
3894 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3895 	acb->firm_request_len	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[1]);	/*firm_request_len,   1, 04-07*/
3896 	acb->firm_numbers_queue	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[2]);	/*firm_numbers_queue, 2, 08-11*/
3897 	acb->firm_sdram_size	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[3]);	/*firm_sdram_size,    3, 12-15*/
3898 	acb->firm_ide_channels	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[4]);	/*firm_ide_channels,  4, 16-19*/
3899 	acb->firm_cfg_version	= CHIP_REG_READ32(HBC_MessageUnit, 0, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
3900 	if(acb->firm_numbers_queue > ARCMSR_MAX_OUTSTANDING_CMD)
3901 		acb->maxOutstanding = ARCMSR_MAX_OUTSTANDING_CMD - 1;
3902 	else
3903 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
3904 }
3905 /*
3906 **********************************************************************
3907 **********************************************************************
3908 */
3909 static void arcmsr_get_hbd_config(struct AdapterControlBlock *acb)
3910 {
3911 	char *acb_firm_model = acb->firm_model;
3912 	char *acb_firm_version = acb->firm_version;
3913 	char *acb_device_map = acb->device_map;
3914 	size_t iop_firm_model = offsetof(struct HBD_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);   /*firm_model,15,60-67*/
3915 	size_t iop_firm_version = offsetof(struct HBD_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]); /*firm_version,17,68-83*/
3916 	size_t iop_device_map = offsetof(struct HBD_MessageUnit, msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3917 	int i;
3918 
3919 	if(CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell) & ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE)
3920 		CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, ARCMSR_HBDMU_IOP2DRV_MESSAGE_CMD_DONE_CLEAR);
3921 	CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
3922 	if(!arcmsr_hbd_wait_msgint_ready(acb)) {
3923 		printf("arcmsr%d: wait 'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3924 	}
3925 	i = 0;
3926 	while(i < 8) {
3927 		*acb_firm_model = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_model+i);
3928 		/* 8 bytes firm_model, 15, 60-67*/
3929 		acb_firm_model++;
3930 		i++;
3931 	}
3932 	i = 0;
3933 	while(i < 16) {
3934 		*acb_firm_version = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_version+i);
3935 		/* 16 bytes firm_version, 17, 68-83*/
3936 		acb_firm_version++;
3937 		i++;
3938 	}
3939 	i = 0;
3940 	while(i < 16) {
3941 		*acb_device_map = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_device_map+i);
3942 		acb_device_map++;
3943 		i++;
3944 	}
3945 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3946 	acb->firm_request_len	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[1]);	/*firm_request_len,   1, 04-07*/
3947 	acb->firm_numbers_queue	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[2]);	/*firm_numbers_queue, 2, 08-11*/
3948 	acb->firm_sdram_size	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[3]);	/*firm_sdram_size,    3, 12-15*/
3949 	acb->firm_ide_channels	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[4]);	/*firm_ide_channels,  4, 16-19*/
3950 	acb->firm_cfg_version	= CHIP_REG_READ32(HBD_MessageUnit, 0, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
3951 	if(acb->firm_numbers_queue > ARCMSR_MAX_HBD_POSTQUEUE)
3952 		acb->maxOutstanding = ARCMSR_MAX_HBD_POSTQUEUE - 1;
3953 	else
3954 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
3955 }
3956 /*
3957 **********************************************************************
3958 **********************************************************************
3959 */
3960 static void arcmsr_get_hbe_config(struct AdapterControlBlock *acb)
3961 {
3962 	char *acb_firm_model = acb->firm_model;
3963 	char *acb_firm_version = acb->firm_version;
3964 	char *acb_device_map = acb->device_map;
3965 	size_t iop_firm_model = offsetof(struct HBE_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_MODEL_OFFSET]);   /*firm_model,15,60-67*/
3966 	size_t iop_firm_version = offsetof(struct HBE_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_VERS_OFFSET]); /*firm_version,17,68-83*/
3967 	size_t iop_device_map = offsetof(struct HBE_MessageUnit,msgcode_rwbuffer[ARCMSR_FW_DEVMAP_OFFSET]);
3968 	int i;
3969 
3970 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
3971 	acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
3972 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
3973 	if(!arcmsr_hbe_wait_msgint_ready(acb)) {
3974 		printf("arcmsr%d: wait 'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
3975 	}
3976 
3977 	i = 0;
3978 	while(i < 8) {
3979 		*acb_firm_model = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_model+i);
3980 		/* 8 bytes firm_model, 15, 60-67*/
3981 		acb_firm_model++;
3982 		i++;
3983 	}
3984 	i = 0;
3985 	while(i < 16) {
3986 		*acb_firm_version = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_version+i);
3987 		/* 16 bytes firm_version, 17, 68-83*/
3988 		acb_firm_version++;
3989 		i++;
3990 	}
3991 	i = 0;
3992 	while(i < 16) {
3993 		*acb_device_map = bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_device_map+i);
3994 		acb_device_map++;
3995 		i++;
3996 	}
3997 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
3998 	acb->firm_request_len	= CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[1]);	/*firm_request_len,   1, 04-07*/
3999 	acb->firm_numbers_queue	= CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[2]);	/*firm_numbers_queue, 2, 08-11*/
4000 	acb->firm_sdram_size	= CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[3]);	/*firm_sdram_size,    3, 12-15*/
4001 	acb->firm_ide_channels	= CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[4]);	/*firm_ide_channels,  4, 16-19*/
4002 	acb->firm_cfg_version	= CHIP_REG_READ32(HBE_MessageUnit, 0, msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]);	/*firm_cfg_version,  25, 	  */
4003 	if(acb->firm_numbers_queue > ARCMSR_MAX_OUTSTANDING_CMD)
4004 		acb->maxOutstanding = ARCMSR_MAX_OUTSTANDING_CMD - 1;
4005 	else
4006 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
4007 }
4008 /*
4009 **********************************************************************
4010 **********************************************************************
4011 */
4012 static void arcmsr_get_hbf_config(struct AdapterControlBlock *acb)
4013 {
4014 	u_int32_t *acb_firm_model = (u_int32_t *)acb->firm_model;
4015 	u_int32_t *acb_firm_version = (u_int32_t *)acb->firm_version;
4016 	u_int32_t *acb_device_map = (u_int32_t *)acb->device_map;
4017 	size_t iop_firm_model = ARCMSR_FW_MODEL_OFFSET;   /*firm_model,15,60-67*/
4018 	size_t iop_firm_version = ARCMSR_FW_VERS_OFFSET; /*firm_version,17,68-83*/
4019 	size_t iop_device_map = ARCMSR_FW_DEVMAP_OFFSET;
4020 	int i;
4021 
4022 	CHIP_REG_WRITE32(HBF_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
4023 	acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
4024 	CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
4025 	if(!arcmsr_hbe_wait_msgint_ready(acb))
4026 		printf("arcmsr%d: wait 'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
4027 
4028 	i = 0;
4029 	while(i < 2) {
4030 		*acb_firm_model = acb->msgcode_rwbuffer[iop_firm_model];
4031 		/* 8 bytes firm_model, 15, 60-67*/
4032 		acb_firm_model++;
4033 		iop_firm_model++;
4034 		i++;
4035 	}
4036 	i = 0;
4037 	while(i < 4) {
4038 		*acb_firm_version = acb->msgcode_rwbuffer[iop_firm_version];
4039 		/* 16 bytes firm_version, 17, 68-83*/
4040 		acb_firm_version++;
4041 		iop_firm_version++;
4042 		i++;
4043 	}
4044 	i = 0;
4045 	while(i < 4) {
4046 		*acb_device_map = acb->msgcode_rwbuffer[iop_device_map];
4047 		acb_device_map++;
4048 		iop_device_map++;
4049 		i++;
4050 	}
4051 	printf("Areca RAID adapter%d: %s F/W version %s \n", acb->pci_unit, acb->firm_model, acb->firm_version);
4052 	acb->firm_request_len	= acb->msgcode_rwbuffer[1];	/*firm_request_len,   1, 04-07*/
4053 	acb->firm_numbers_queue	= acb->msgcode_rwbuffer[2];	/*firm_numbers_queue, 2, 08-11*/
4054 	acb->firm_sdram_size	= acb->msgcode_rwbuffer[3];	/*firm_sdram_size,    3, 12-15*/
4055 	acb->firm_ide_channels	= acb->msgcode_rwbuffer[4];	/*firm_ide_channels,  4, 16-19*/
4056 	acb->firm_cfg_version	= acb->msgcode_rwbuffer[ARCMSR_FW_CFGVER_OFFSET]; /*firm_cfg_version,  25*/
4057 	acb->firm_PicStatus	= acb->msgcode_rwbuffer[ARCMSR_FW_PICSTATUS]; /* firm_PicStatus, 30 */
4058 	if(acb->firm_numbers_queue > ARCMSR_MAX_OUTSTANDING_CMD)
4059 		acb->maxOutstanding = ARCMSR_MAX_OUTSTANDING_CMD - 1;
4060 	else
4061 		acb->maxOutstanding = acb->firm_numbers_queue - 1;
4062 }
4063 /*
4064 **********************************************************************
4065 **********************************************************************
4066 */
4067 static void arcmsr_get_firmware_spec(struct AdapterControlBlock *acb)
4068 {
4069 	switch (acb->adapter_type) {
4070 	case ACB_ADAPTER_TYPE_A:
4071 		arcmsr_get_hba_config(acb);
4072 		break;
4073 	case ACB_ADAPTER_TYPE_B:
4074 		arcmsr_get_hbb_config(acb);
4075 		break;
4076 	case ACB_ADAPTER_TYPE_C:
4077 		arcmsr_get_hbc_config(acb);
4078 		break;
4079 	case ACB_ADAPTER_TYPE_D:
4080 		arcmsr_get_hbd_config(acb);
4081 		break;
4082 	case ACB_ADAPTER_TYPE_E:
4083 		arcmsr_get_hbe_config(acb);
4084 		break;
4085 	case ACB_ADAPTER_TYPE_F:
4086 		arcmsr_get_hbf_config(acb);
4087 		break;
4088 	}
4089 }
4090 /*
4091 **********************************************************************
4092 **********************************************************************
4093 */
4094 static void arcmsr_wait_firmware_ready( struct AdapterControlBlock *acb)
4095 {
4096 	int	timeout=0;
4097 
4098 	switch (acb->adapter_type) {
4099 	case ACB_ADAPTER_TYPE_A: {
4100 			while ((CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_msgaddr1) & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0)
4101 			{
4102 				if (timeout++ > 2000) /* (2000*15)/1000 = 30 sec */
4103 				{
4104 					printf( "arcmsr%d:timed out waiting for firmware \n", acb->pci_unit);
4105 					return;
4106 				}
4107 				UDELAY(15000); /* wait 15 milli-seconds */
4108 			}
4109 		}
4110 		break;
4111 	case ACB_ADAPTER_TYPE_B: {
4112 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
4113 			while ((READ_CHIP_REG32(0, phbbmu->iop2drv_doorbell) & ARCMSR_MESSAGE_FIRMWARE_OK) == 0)
4114 			{
4115 				if (timeout++ > 2000) /* (2000*15)/1000 = 30 sec */
4116 				{
4117 					printf( "arcmsr%d: timed out waiting for firmware \n", acb->pci_unit);
4118 					return;
4119 				}
4120 				UDELAY(15000); /* wait 15 milli-seconds */
4121 			}
4122 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_END_OF_INTERRUPT);
4123 		}
4124 		break;
4125 	case ACB_ADAPTER_TYPE_C: {
4126 			while ((CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_msgaddr1) & ARCMSR_HBCMU_MESSAGE_FIRMWARE_OK) == 0)
4127 			{
4128 				if (timeout++ > 2000) /* (2000*15)/1000 = 30 sec */
4129 				{
4130 					printf( "arcmsr%d:timed out waiting for firmware ready\n", acb->pci_unit);
4131 					return;
4132 				}
4133 				UDELAY(15000); /* wait 15 milli-seconds */
4134 			}
4135 		}
4136 		break;
4137 	case ACB_ADAPTER_TYPE_D: {
4138 			while ((CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_msgaddr1) & ARCMSR_HBDMU_MESSAGE_FIRMWARE_OK) == 0)
4139 			{
4140 				if (timeout++ > 2000) /* (2000*15)/1000 = 30 sec */
4141 				{
4142 					printf( "arcmsr%d:timed out waiting for firmware ready\n", acb->pci_unit);
4143 					return;
4144 				}
4145 				UDELAY(15000); /* wait 15 milli-seconds */
4146 			}
4147 		}
4148 		break;
4149 	case ACB_ADAPTER_TYPE_E:
4150 	case ACB_ADAPTER_TYPE_F: {
4151 			while ((CHIP_REG_READ32(HBE_MessageUnit, 0, outbound_msgaddr1) & ARCMSR_HBEMU_MESSAGE_FIRMWARE_OK) == 0)
4152 			{
4153 				if (timeout++ > 4000) /* (4000*15)/1000 = 60 sec */
4154 				{
4155 					printf( "arcmsr%d:timed out waiting for firmware ready\n", acb->pci_unit);
4156 					return;
4157 				}
4158 				UDELAY(15000); /* wait 15 milli-seconds */
4159 			}
4160 		}
4161 		break;
4162 	}
4163 }
4164 /*
4165 **********************************************************************
4166 **********************************************************************
4167 */
4168 static void arcmsr_clear_doorbell_queue_buffer( struct AdapterControlBlock *acb)
4169 {
4170 	u_int32_t outbound_doorbell;
4171 
4172 	switch (acb->adapter_type) {
4173 	case ACB_ADAPTER_TYPE_A: {
4174 			/* empty doorbell Qbuffer if door bell ringed */
4175 			outbound_doorbell = CHIP_REG_READ32(HBA_MessageUnit, 0, outbound_doorbell);
4176 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_doorbell, outbound_doorbell);	/*clear doorbell interrupt */
4177 			CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_READ_OK);
4178 		}
4179 		break;
4180 	case ACB_ADAPTER_TYPE_B: {
4181 			struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
4182 			WRITE_CHIP_REG32(0, phbbmu->iop2drv_doorbell, ARCMSR_DOORBELL_INT_CLEAR_PATTERN);/*clear interrupt and message state*/
4183 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_DRV2IOP_DATA_READ_OK);
4184 			/* let IOP know data has been read */
4185 		}
4186 		break;
4187 	case ACB_ADAPTER_TYPE_C: {
4188 			/* empty doorbell Qbuffer if door bell ringed */
4189 			outbound_doorbell = CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_doorbell);
4190 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, outbound_doorbell_clear, outbound_doorbell);	/*clear doorbell interrupt */
4191 			CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell, ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK);
4192 			CHIP_REG_READ32(HBC_MessageUnit, 0, outbound_doorbell_clear); /* Dummy read to force pci flush */
4193 			CHIP_REG_READ32(HBC_MessageUnit, 0, inbound_doorbell); /* Dummy read to force pci flush */
4194 		}
4195 		break;
4196 	case ACB_ADAPTER_TYPE_D: {
4197 			/* empty doorbell Qbuffer if door bell ringed */
4198 			outbound_doorbell = CHIP_REG_READ32(HBD_MessageUnit, 0, outbound_doorbell);
4199 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, outbound_doorbell, outbound_doorbell);	/*clear doorbell interrupt */
4200 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_doorbell, ARCMSR_HBDMU_DRV2IOP_DATA_OUT_READ);
4201 		}
4202 		break;
4203 	case ACB_ADAPTER_TYPE_E:
4204 	case ACB_ADAPTER_TYPE_F: {
4205 			/* empty doorbell Qbuffer if door bell ringed */
4206 			acb->in_doorbell = CHIP_REG_READ32(HBE_MessageUnit, 0, iobound_doorbell);
4207 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_status, 0);	/*clear doorbell interrupt */
4208 			acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_READ_OK;
4209 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
4210 		}
4211 		break;
4212 	}
4213 }
4214 /*
4215 ************************************************************************
4216 ************************************************************************
4217 */
4218 static u_int32_t arcmsr_iop_confirm(struct AdapterControlBlock *acb)
4219 {
4220 	unsigned long srb_phyaddr;
4221 	u_int32_t srb_phyaddr_hi32;
4222 	u_int32_t srb_phyaddr_lo32;
4223 
4224 	/*
4225 	********************************************************************
4226 	** here we need to tell iop 331 our freesrb.HighPart
4227 	** if freesrb.HighPart is not zero
4228 	********************************************************************
4229 	*/
4230 	srb_phyaddr = (unsigned long) acb->srb_phyaddr.phyaddr;
4231 	srb_phyaddr_hi32 = acb->srb_phyaddr.B.phyadd_high;
4232 	srb_phyaddr_lo32 = acb->srb_phyaddr.B.phyadd_low;
4233 	switch (acb->adapter_type) {
4234 	case ACB_ADAPTER_TYPE_A: {
4235 			if(srb_phyaddr_hi32 != 0) {
4236 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG);
4237 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, msgcode_rwbuffer[1], srb_phyaddr_hi32);
4238 				CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_SET_CONFIG);
4239 				if(!arcmsr_hba_wait_msgint_ready(acb)) {
4240 					printf( "arcmsr%d: 'set srb high part physical address' timeout \n", acb->pci_unit);
4241 					return FALSE;
4242 				}
4243 			}
4244 		}
4245 		break;
4246 		/*
4247 		***********************************************************************
4248 		**    if adapter type B, set window of "post command Q"
4249 		***********************************************************************
4250 		*/
4251 	case ACB_ADAPTER_TYPE_B: {
4252 			u_int32_t post_queue_phyaddr;
4253 			struct HBB_MessageUnit *phbbmu;
4254 
4255 			phbbmu = (struct HBB_MessageUnit *)acb->pmu;
4256 			phbbmu->postq_index = 0;
4257 			phbbmu->doneq_index = 0;
4258 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_SET_POST_WINDOW);
4259 			if(!arcmsr_hbb_wait_msgint_ready(acb)) {
4260 				printf( "arcmsr%d: 'set window of post command Q' timeout\n", acb->pci_unit);
4261 				return FALSE;
4262 			}
4263 			post_queue_phyaddr = srb_phyaddr + ARCMSR_SRBS_POOL_SIZE
4264 								+ offsetof(struct HBB_MessageUnit, post_qbuffer);
4265 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG); /* driver "set config" signature */
4266 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[1], srb_phyaddr_hi32); /* normal should be zero */
4267 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[2], post_queue_phyaddr); /* postQ size (256+8)*4 */
4268 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[3], post_queue_phyaddr+1056); /* doneQ size (256+8)*4 */
4269 			CHIP_REG_WRITE32(HBB_RWBUFFER, 1, msgcode_rwbuffer[4], 1056); /* srb maxQ size must be --> [(256+8)*4] */
4270 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_SET_CONFIG);
4271 			if(!arcmsr_hbb_wait_msgint_ready(acb)) {
4272 				printf( "arcmsr%d: 'set command Q window' timeout \n", acb->pci_unit);
4273 				return FALSE;
4274 			}
4275 			WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_START_DRIVER_MODE);
4276 			if(!arcmsr_hbb_wait_msgint_ready(acb)) {
4277 				printf( "arcmsr%d: 'start diver mode' timeout \n", acb->pci_unit);
4278 				return FALSE;
4279 			}
4280 		}
4281 		break;
4282 	case ACB_ADAPTER_TYPE_C: {
4283 			if(srb_phyaddr_hi32 != 0) {
4284 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG);
4285 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, msgcode_rwbuffer[1], srb_phyaddr_hi32);
4286 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_SET_CONFIG);
4287 				CHIP_REG_WRITE32(HBC_MessageUnit, 0, inbound_doorbell,ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE);
4288 				if(!arcmsr_hbc_wait_msgint_ready(acb)) {
4289 					printf( "arcmsr%d: 'set srb high part physical address' timeout \n", acb->pci_unit);
4290 					return FALSE;
4291 				}
4292 			}
4293 		}
4294 		break;
4295 	case ACB_ADAPTER_TYPE_D: {
4296 			u_int32_t post_queue_phyaddr, done_queue_phyaddr;
4297 			struct HBD_MessageUnit0 *phbdmu;
4298 
4299 			phbdmu = (struct HBD_MessageUnit0 *)acb->pmu;
4300 			phbdmu->postq_index = 0;
4301 			phbdmu->doneq_index = 0x40FF;
4302 			post_queue_phyaddr = srb_phyaddr_lo32 + ARCMSR_SRBS_POOL_SIZE
4303 								+ offsetof(struct HBD_MessageUnit0, post_qbuffer);
4304 			done_queue_phyaddr = srb_phyaddr_lo32 + ARCMSR_SRBS_POOL_SIZE
4305 								+ offsetof(struct HBD_MessageUnit0, done_qbuffer);
4306 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG); /* driver "set config" signature */
4307 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[1], srb_phyaddr_hi32);
4308 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[2], post_queue_phyaddr); /* postQ base */
4309 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[3], done_queue_phyaddr); /* doneQ base */
4310 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, msgcode_rwbuffer[4], 0x100);
4311 			CHIP_REG_WRITE32(HBD_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_SET_CONFIG);
4312 			if(!arcmsr_hbd_wait_msgint_ready(acb)) {
4313 				printf( "arcmsr%d: 'set srb high part physical address' timeout \n", acb->pci_unit);
4314 				return FALSE;
4315 			}
4316 		}
4317 		break;
4318 	case ACB_ADAPTER_TYPE_E: {
4319 			u_int32_t cdb_phyaddr_lo32;
4320 			cdb_phyaddr_lo32 = srb_phyaddr_lo32 + offsetof(struct CommandControlBlock, arcmsr_cdb);
4321 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG);
4322 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[1], ARCMSR_SIGNATURE_1884);
4323 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[2], cdb_phyaddr_lo32);
4324 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[3], srb_phyaddr_hi32);
4325 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[4], SRB_SIZE);
4326 			cdb_phyaddr_lo32 = srb_phyaddr_lo32 + ARCMSR_SRBS_POOL_SIZE;
4327 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[5], cdb_phyaddr_lo32);
4328 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[6], srb_phyaddr_hi32);
4329 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[7], COMPLETION_Q_POOL_SIZE);
4330 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_SET_CONFIG);
4331 			acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
4332 			CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
4333 			if(!arcmsr_hbe_wait_msgint_ready(acb)) {
4334 				printf( "arcmsr%d: 'set srb high part physical address' timeout \n", acb->pci_unit);
4335 				return FALSE;
4336 			}
4337 		}
4338 		break;
4339 	case ACB_ADAPTER_TYPE_F: {
4340 			u_int32_t cdb_phyaddr_lo32;
4341 			cdb_phyaddr_lo32 = srb_phyaddr_lo32 + offsetof(struct CommandControlBlock, arcmsr_cdb);
4342 			acb->msgcode_rwbuffer[0] = ARCMSR_SIGNATURE_SET_CONFIG;
4343 			acb->msgcode_rwbuffer[1] = ARCMSR_SIGNATURE_1886;
4344 			acb->msgcode_rwbuffer[2] = cdb_phyaddr_lo32;
4345 			acb->msgcode_rwbuffer[3] = srb_phyaddr_hi32;
4346 			acb->msgcode_rwbuffer[4] = SRB_SIZE;
4347 			cdb_phyaddr_lo32 = srb_phyaddr_lo32 + ARCMSR_SRBS_POOL_SIZE;
4348 			acb->msgcode_rwbuffer[5] = cdb_phyaddr_lo32;
4349 			acb->msgcode_rwbuffer[6] = srb_phyaddr_hi32;
4350 			acb->msgcode_rwbuffer[7] = COMPLETION_Q_POOL_SIZE;
4351 			if (acb->xor_mega) {
4352 				acb->msgcode_rwbuffer[8] = 0x555AA;	//FreeBSD init 2
4353 				acb->msgcode_rwbuffer[9] = 0;
4354 				acb->msgcode_rwbuffer[10] = (uint32_t)acb->xor_sgtable_phy;
4355 				acb->msgcode_rwbuffer[11] = (uint32_t)((acb->xor_sgtable_phy >> 16) >> 16);
4356 			}
4357 			CHIP_REG_WRITE32(HBF_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_SET_CONFIG);
4358 			acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
4359 			CHIP_REG_WRITE32(HBF_MessageUnit, 0, iobound_doorbell, acb->out_doorbell);
4360 			if(!arcmsr_hbe_wait_msgint_ready(acb)) {
4361 				printf( "arcmsr%d: 'set srb high part physical address' timeout \n", acb->pci_unit);
4362 				return FALSE;
4363 			}
4364 		}
4365 		break;
4366 	}
4367 	return (TRUE);
4368 }
4369 /*
4370 ************************************************************************
4371 ************************************************************************
4372 */
4373 static void arcmsr_enable_eoi_mode(struct AdapterControlBlock *acb)
4374 {
4375 	if (acb->adapter_type == ACB_ADAPTER_TYPE_B)
4376 	{
4377 		struct HBB_MessageUnit *phbbmu = (struct HBB_MessageUnit *)acb->pmu;
4378 		WRITE_CHIP_REG32(0, phbbmu->drv2iop_doorbell, ARCMSR_MESSAGE_ACTIVE_EOI_MODE);
4379 		if(!arcmsr_hbb_wait_msgint_ready(acb)) {
4380 			printf( "arcmsr%d: 'iop enable eoi mode' timeout \n", acb->pci_unit);
4381 			return;
4382 		}
4383 	}
4384 }
4385 /*
4386 **********************************************************************
4387 **********************************************************************
4388 */
4389 static void arcmsr_iop_init(struct AdapterControlBlock *acb)
4390 {
4391 	u_int32_t intmask_org;
4392 
4393 	/* disable all outbound interrupt */
4394 	intmask_org = arcmsr_disable_allintr(acb);
4395 	arcmsr_wait_firmware_ready(acb);
4396 	arcmsr_iop_confirm(acb);
4397 	arcmsr_get_firmware_spec(acb);
4398 	/*start background rebuild*/
4399 	arcmsr_start_adapter_bgrb(acb);
4400 	/* empty doorbell Qbuffer if door bell ringed */
4401 	arcmsr_clear_doorbell_queue_buffer(acb);
4402 	arcmsr_enable_eoi_mode(acb);
4403 	/* enable outbound Post Queue, outbound doorbell Interrupt */
4404 	arcmsr_enable_allintr(acb, intmask_org);
4405 	acb->acb_flags |= ACB_F_IOP_INITED;
4406 }
4407 /*
4408 **********************************************************************
4409 **********************************************************************
4410 */
4411 static void arcmsr_map_free_srb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
4412 {
4413 	struct AdapterControlBlock *acb = arg;
4414 	struct CommandControlBlock *srb_tmp;
4415 	u_int32_t i;
4416 	unsigned long srb_phyaddr = (unsigned long)segs->ds_addr;
4417 
4418 	acb->srb_phyaddr.phyaddr = srb_phyaddr;
4419 	srb_tmp = (struct CommandControlBlock *)acb->uncacheptr;
4420 	for(i=0; i < ARCMSR_MAX_FREESRB_NUM; i++) {
4421 		if(bus_dmamap_create(acb->dm_segs_dmat,
4422 			 /*flags*/0, &srb_tmp->dm_segs_dmamap) != 0) {
4423 			acb->acb_flags |= ACB_F_MAPFREESRB_FAILD;
4424 			printf("arcmsr%d:"
4425 			" srb dmamap bus_dmamap_create error\n", acb->pci_unit);
4426 			return;
4427 		}
4428 		if((acb->adapter_type == ACB_ADAPTER_TYPE_C) || (acb->adapter_type == ACB_ADAPTER_TYPE_D)
4429 			 || (acb->adapter_type == ACB_ADAPTER_TYPE_E) || (acb->adapter_type == ACB_ADAPTER_TYPE_F))
4430 		{
4431 			srb_tmp->cdb_phyaddr = srb_phyaddr;
4432 		}
4433 		else
4434 			srb_tmp->cdb_phyaddr = srb_phyaddr >> 5;
4435 		srb_tmp->acb = acb;
4436 		srb_tmp->smid = i << 16;
4437 		acb->srbworkingQ[i] = acb->psrb_pool[i] = srb_tmp;
4438 		srb_phyaddr = srb_phyaddr + SRB_SIZE;
4439 		srb_tmp = (struct CommandControlBlock *)((unsigned long)srb_tmp + SRB_SIZE);
4440 	}
4441 	srb_tmp = (struct CommandControlBlock *)(acb->uncacheptr + ARCMSR_SRBS_POOL_SIZE);
4442 	srb_phyaddr = (unsigned long)segs->ds_addr + ARCMSR_SRBS_POOL_SIZE;
4443 	switch (acb->adapter_type) {
4444 	case ACB_ADAPTER_TYPE_B: {
4445 		struct HBB_MessageUnit *phbbmu;
4446 
4447 		acb->pmu = (struct MessageUnit_UNION *)srb_tmp;
4448 		phbbmu = (struct HBB_MessageUnit *)acb->pmu;
4449 		phbbmu->hbb_doorbell = (struct HBB_DOORBELL *)acb->mem_base0;
4450 		phbbmu->hbb_rwbuffer = (struct HBB_RWBUFFER *)acb->mem_base1;
4451 		if (acb->vendor_device_id == PCIDevVenIDARC1203) {
4452 			phbbmu->drv2iop_doorbell = offsetof(struct HBB_DOORBELL_1203, drv2iop_doorbell);
4453 			phbbmu->drv2iop_doorbell_mask = offsetof(struct HBB_DOORBELL_1203, drv2iop_doorbell_mask);
4454 			phbbmu->iop2drv_doorbell = offsetof(struct HBB_DOORBELL_1203, iop2drv_doorbell);
4455 			phbbmu->iop2drv_doorbell_mask = offsetof(struct HBB_DOORBELL_1203, iop2drv_doorbell_mask);
4456 		} else {
4457 			phbbmu->drv2iop_doorbell = offsetof(struct HBB_DOORBELL, drv2iop_doorbell);
4458 			phbbmu->drv2iop_doorbell_mask = offsetof(struct HBB_DOORBELL, drv2iop_doorbell_mask);
4459 			phbbmu->iop2drv_doorbell = offsetof(struct HBB_DOORBELL, iop2drv_doorbell);
4460 			phbbmu->iop2drv_doorbell_mask = offsetof(struct HBB_DOORBELL, iop2drv_doorbell_mask);
4461 		}
4462 		}
4463 		break;
4464 	case ACB_ADAPTER_TYPE_D:
4465 		acb->pmu = (struct MessageUnit_UNION *)srb_tmp;
4466 		acb->pmu->muu.hbdmu.phbdmu = (struct HBD_MessageUnit *)acb->mem_base0;
4467 		break;
4468 	case ACB_ADAPTER_TYPE_E:
4469 		acb->pCompletionQ = (pCompletion_Q)srb_tmp;
4470 		break;
4471 	case ACB_ADAPTER_TYPE_F: {
4472 		unsigned long	host_buffer_dma;
4473 		acb->pCompletionQ = (pCompletion_Q)srb_tmp;
4474 		acb->completeQ_phys = srb_phyaddr;
4475 		memset(acb->pCompletionQ, 0xff, COMPLETION_Q_POOL_SIZE);
4476 		acb->message_wbuffer = (u_int32_t *)((unsigned long)acb->pCompletionQ + COMPLETION_Q_POOL_SIZE);
4477 		acb->message_rbuffer = (u_int32_t *)((unsigned long)acb->message_wbuffer + 0x100);
4478 		acb->msgcode_rwbuffer = (u_int32_t *)((unsigned long)acb->message_wbuffer + 0x200);
4479 		memset((void *)acb->message_wbuffer, 0, MESG_RW_BUFFER_SIZE);
4480 		arcmsr_wait_firmware_ready(acb);
4481 		host_buffer_dma = acb->completeQ_phys + COMPLETION_Q_POOL_SIZE;
4482 		CHIP_REG_WRITE32(HBF_MessageUnit, 0, inbound_msgaddr0, (u_int32_t)(host_buffer_dma | 1));  /* host buffer low addr, bit0:1 all buffer active */
4483 		CHIP_REG_WRITE32(HBF_MessageUnit, 0, inbound_msgaddr1, (u_int32_t)((host_buffer_dma >> 16) >> 16));/* host buffer high addr */
4484 		CHIP_REG_WRITE32(HBF_MessageUnit, 0, iobound_doorbell, ARCMSR_HBFMU_DOORBELL_SYNC1);       /* set host buffer physical address */
4485 		acb->firm_PicStatus = CHIP_REG_READ32(HBF_MessageUnit, 0, outbound_msgaddr1);	/* get firmware spec info */
4486 		break;
4487 		}
4488 	}
4489 	acb->vir2phy_offset = (unsigned long)srb_tmp - (unsigned long)srb_phyaddr;
4490 }
4491 
4492 static void arcmsr_map_xor_sgtable(void *arg, bus_dma_segment_t *segs, int nseg, int error)
4493 {
4494 	struct AdapterControlBlock *acb = arg;
4495 
4496 	acb->xor_sgtable_phy = (unsigned long)segs->ds_addr;
4497 	if ((nseg != 1) || ((u_int32_t)segs->ds_len != acb->init2cfg_size)) {
4498 		acb->acb_flags |= ACB_F_MAPXOR_FAILD;
4499 		printf("arcmsr%d: alloc xor table seg num or size not as i wish!\n", acb->pci_unit);
4500 		return;
4501 	}
4502 }
4503 
4504 static void arcmsr_map_xor_sg(void *arg, bus_dma_segment_t *segs, int nseg, int error)
4505 {
4506 	struct AdapterControlBlock *acb = arg;
4507 	int	i;
4508 	struct HostRamBuf *pRamBuf;
4509 	struct XorSg *pxortable = (struct XorSg *)(acb->xortable + sizeof(struct HostRamBuf));
4510 
4511 	if (nseg != acb->xor_mega) {
4512 		acb->acb_flags |= ACB_F_MAPXOR_FAILD;
4513 		printf("arcmsr%d: alloc xor seg NUM not as i wish!\n", acb->pci_unit);
4514 		return;
4515 	}
4516 	for (i = 0; i < nseg; i++) {
4517 		if ((u_int32_t)segs->ds_len != ARCMSR_XOR_SEG_SIZE) {
4518 			acb->acb_flags |= ACB_F_MAPXOR_FAILD;
4519 			printf("arcmsr%d: alloc xor seg SIZE not as i wish!\n", acb->pci_unit);
4520 			return;
4521 		}
4522 		pxortable->xorPhys = (u_int64_t)segs->ds_addr;
4523 		pxortable->xorBufLen = (u_int64_t)segs->ds_len;
4524 		pxortable++;
4525 		segs++;
4526 	}
4527 	pRamBuf = (struct HostRamBuf *)acb->xortable;
4528 	pRamBuf->hrbSignature = 0x53425248;	//HRBS
4529 	pRamBuf->hrbSize = ARCMSR_XOR_SEG_SIZE * nseg;
4530 	pRamBuf->hrbRes[0] = 0;
4531 	pRamBuf->hrbRes[1] = 0;
4532 	bus_dmamap_sync(acb->xortable_dmat, acb->xortable_dmamap, BUS_DMASYNC_PREREAD);
4533 	bus_dmamap_sync(acb->xor_dmat, acb->xor_dmamap, BUS_DMASYNC_PREWRITE);
4534 }
4535 
4536 /*
4537 ************************************************************************
4538 ************************************************************************
4539 */
4540 static void arcmsr_free_resource(struct AdapterControlBlock *acb)
4541 {
4542 	/* remove the control device */
4543 	if(acb->ioctl_dev != NULL) {
4544 		destroy_dev(acb->ioctl_dev);
4545 	}
4546 	if (acb->acb_flags & ACB_F_DMAMAP_SG)
4547 		bus_dmamap_unload(acb->xor_dmat, acb->xor_dmamap);
4548 	if (acb->xor_dmamap) {
4549 		bus_dmamem_free(acb->xor_dmat, acb->xorptr, acb->xor_dmamap);
4550 	}
4551 	if (acb->acb_flags & ACB_F_DMAMAP_SGTABLE)
4552 		bus_dmamap_unload(acb->xortable_dmat, acb->xortable_dmamap);
4553 	if (acb->xortable_dmamap) {
4554 		bus_dmamem_free(acb->xortable_dmat, acb->xortable, acb->xortable_dmamap);
4555 	}
4556 	if (acb->acb_flags & ACB_F_DMAMAP_SRB)
4557 		bus_dmamap_unload(acb->srb_dmat, acb->srb_dmamap);
4558 	if (acb->srb_dmamap) {
4559 		bus_dmamem_free(acb->srb_dmat, acb->uncacheptr, acb->srb_dmamap);
4560 	}
4561 	if (acb->srb_dmat)
4562 		bus_dma_tag_destroy(acb->srb_dmat);
4563 	if (acb->dm_segs_dmat)
4564 		bus_dma_tag_destroy(acb->dm_segs_dmat);
4565 	if (acb->parent_dmat)
4566 		bus_dma_tag_destroy(acb->parent_dmat);
4567 	switch(acb->adapter_type) {
4568 		case ACB_ADAPTER_TYPE_A:
4569 			if (acb->sys_res_arcmsr[0])
4570 				bus_release_resource(acb->pci_dev, SYS_RES_MEMORY, PCIR_BAR(0), acb->sys_res_arcmsr[0]);
4571 			break;
4572 		case ACB_ADAPTER_TYPE_B:
4573 			if (acb->sys_res_arcmsr[0])
4574 				bus_release_resource(acb->pci_dev, SYS_RES_MEMORY, PCIR_BAR(0), acb->sys_res_arcmsr[0]);
4575 			if (acb->sys_res_arcmsr[1])
4576 				bus_release_resource(acb->pci_dev, SYS_RES_MEMORY, PCIR_BAR(2), acb->sys_res_arcmsr[1]);
4577 			break;
4578 		case ACB_ADAPTER_TYPE_C:
4579 			if (acb->sys_res_arcmsr[0])
4580 				bus_release_resource(acb->pci_dev, SYS_RES_MEMORY, PCIR_BAR(1), acb->sys_res_arcmsr[0]);
4581 			break;
4582 		case ACB_ADAPTER_TYPE_D:
4583 			if (acb->sys_res_arcmsr[0])
4584 				bus_release_resource(acb->pci_dev, SYS_RES_MEMORY, PCIR_BAR(0), acb->sys_res_arcmsr[0]);
4585 			break;
4586 		case ACB_ADAPTER_TYPE_E:
4587 			if (acb->sys_res_arcmsr[0])
4588 				bus_release_resource(acb->pci_dev, SYS_RES_MEMORY, PCIR_BAR(1), acb->sys_res_arcmsr[0]);
4589 			break;
4590 		case ACB_ADAPTER_TYPE_F:
4591 			if (acb->sys_res_arcmsr[0])
4592 				bus_release_resource(acb->pci_dev, SYS_RES_MEMORY, PCIR_BAR(0), acb->sys_res_arcmsr[0]);
4593 			break;
4594 	}
4595 }
4596 /*
4597 ************************************************************************
4598 ************************************************************************
4599 */
4600 static void arcmsr_mutex_init(struct AdapterControlBlock *acb)
4601 {
4602 	ARCMSR_LOCK_INIT(&acb->isr_lock, "arcmsr isr lock");
4603 	ARCMSR_LOCK_INIT(&acb->srb_lock, "arcmsr srb lock");
4604 	ARCMSR_LOCK_INIT(&acb->postDone_lock, "arcmsr postQ lock");
4605 	ARCMSR_LOCK_INIT(&acb->qbuffer_lock, "arcmsr RW buffer lock");
4606 }
4607 /*
4608 ************************************************************************
4609 ************************************************************************
4610 */
4611 static void arcmsr_mutex_destroy(struct AdapterControlBlock *acb)
4612 {
4613 	ARCMSR_LOCK_DESTROY(&acb->qbuffer_lock);
4614 	ARCMSR_LOCK_DESTROY(&acb->postDone_lock);
4615 	ARCMSR_LOCK_DESTROY(&acb->srb_lock);
4616 	ARCMSR_LOCK_DESTROY(&acb->isr_lock);
4617 }
4618 /*
4619 ************************************************************************
4620 ************************************************************************
4621 */
4622 static int arcmsr_define_adapter_type(struct AdapterControlBlock *acb)
4623 {
4624 	int rc = 0;
4625 
4626 	switch (acb->vendor_device_id) {
4627 		case PCIDevVenIDARC1880:
4628 		case PCIDevVenIDARC1882:
4629 		case PCIDevVenIDARC1883:
4630 		case PCIDevVenIDARC1213:
4631 		case PCIDevVenIDARC1223: {
4632 			acb->adapter_type = ACB_ADAPTER_TYPE_C;
4633 			if ((acb->sub_device_id == ARECA_SUB_DEV_ID_1883) ||
4634 			    (acb->sub_device_id == ARECA_SUB_DEV_ID_1216) ||
4635 			    (acb->sub_device_id == ARECA_SUB_DEV_ID_1226))
4636 				acb->adapter_bus_speed = ACB_BUS_SPEED_12G;
4637 			else
4638 				acb->adapter_bus_speed = ACB_BUS_SPEED_6G;
4639 			acb->max_coherent_size = ARCMSR_SRBS_POOL_SIZE;
4640 			}
4641 			break;
4642 		case PCIDevVenIDARC1884:
4643 			acb->adapter_type = ACB_ADAPTER_TYPE_E;
4644 			acb->adapter_bus_speed = ACB_BUS_SPEED_12G;
4645 			acb->max_coherent_size = ARCMSR_SRBS_POOL_SIZE + COMPLETION_Q_POOL_SIZE;
4646 			acb->completionQ_entry = COMPLETION_Q_POOL_SIZE / sizeof(struct deliver_completeQ);
4647 			break;
4648 		case PCIDevVenIDARC1886_0:
4649 		case PCIDevVenIDARC1886_:
4650 		case PCIDevVenIDARC1886:
4651 			acb->adapter_type = ACB_ADAPTER_TYPE_F;
4652 			acb->adapter_bus_speed = ACB_BUS_SPEED_12G;
4653 			acb->max_coherent_size = ARCMSR_SRBS_POOL_SIZE + COMPLETION_Q_POOL_SIZE + MESG_RW_BUFFER_SIZE;
4654 			acb->completionQ_entry = COMPLETION_Q_POOL_SIZE / sizeof(struct deliver_completeQ);
4655 			break;
4656 		case PCIDevVenIDARC1214:
4657 		case PCIDevVenIDARC1224: {
4658 			acb->adapter_type = ACB_ADAPTER_TYPE_D;
4659 			acb->adapter_bus_speed = ACB_BUS_SPEED_6G;
4660 			acb->max_coherent_size = ARCMSR_SRBS_POOL_SIZE + (sizeof(struct HBD_MessageUnit0));
4661 			}
4662 			break;
4663 		case PCIDevVenIDARC1200:
4664 		case PCIDevVenIDARC1201: {
4665 			acb->adapter_type = ACB_ADAPTER_TYPE_B;
4666 			acb->adapter_bus_speed = ACB_BUS_SPEED_3G;
4667 			acb->max_coherent_size = ARCMSR_SRBS_POOL_SIZE + (sizeof(struct HBB_MessageUnit));
4668 			}
4669 			break;
4670 		case PCIDevVenIDARC1203: {
4671 			acb->adapter_type = ACB_ADAPTER_TYPE_B;
4672 			acb->adapter_bus_speed = ACB_BUS_SPEED_6G;
4673 			acb->max_coherent_size = ARCMSR_SRBS_POOL_SIZE + (sizeof(struct HBB_MessageUnit));
4674 			}
4675 			break;
4676 		case PCIDevVenIDARC1110:
4677 		case PCIDevVenIDARC1120:
4678 		case PCIDevVenIDARC1130:
4679 		case PCIDevVenIDARC1160:
4680 		case PCIDevVenIDARC1170:
4681 		case PCIDevVenIDARC1210:
4682 		case PCIDevVenIDARC1220:
4683 		case PCIDevVenIDARC1230:
4684 		case PCIDevVenIDARC1231:
4685 		case PCIDevVenIDARC1260:
4686 		case PCIDevVenIDARC1261:
4687 		case PCIDevVenIDARC1270:
4688 		case PCIDevVenIDARC1280:
4689 		case PCIDevVenIDARC1212:
4690 		case PCIDevVenIDARC1222:
4691 		case PCIDevVenIDARC1380:
4692 		case PCIDevVenIDARC1381:
4693 		case PCIDevVenIDARC1680:
4694 		case PCIDevVenIDARC1681: {
4695 			acb->adapter_type = ACB_ADAPTER_TYPE_A;
4696 			acb->adapter_bus_speed = ACB_BUS_SPEED_3G;
4697 			acb->max_coherent_size = ARCMSR_SRBS_POOL_SIZE;
4698 			}
4699 			break;
4700 		default: {
4701 			printf("arcmsr%d:"
4702 			" unknown RAID adapter type \n", acb->pci_unit);
4703 			rc = ENOMEM;
4704 		}
4705 	}
4706 	return rc;
4707 }
4708 
4709 static int arcmsr_map_pcireg(device_t dev, struct AdapterControlBlock *acb)
4710 {
4711 	switch(acb->adapter_type) {
4712 	case ACB_ADAPTER_TYPE_A: {
4713 		u_int32_t rid0 = PCIR_BAR(0);
4714 		vm_offset_t	mem_base0;
4715 
4716 		acb->sys_res_arcmsr[0] = bus_alloc_resource_any(dev,SYS_RES_MEMORY, &rid0, RF_ACTIVE);
4717 		if(acb->sys_res_arcmsr[0] == NULL) {
4718 			arcmsr_free_resource(acb);
4719 			printf("arcmsr%d: bus_alloc_resource failure!\n", acb->pci_unit);
4720 			return ENOMEM;
4721 		}
4722 		if(rman_get_start(acb->sys_res_arcmsr[0]) <= 0) {
4723 			arcmsr_free_resource(acb);
4724 			printf("arcmsr%d: rman_get_start failure!\n", acb->pci_unit);
4725 			return ENXIO;
4726 		}
4727 		mem_base0 = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[0]);
4728 		if(mem_base0 == 0) {
4729 			arcmsr_free_resource(acb);
4730 			printf("arcmsr%d: rman_get_virtual failure!\n", acb->pci_unit);
4731 			return ENXIO;
4732 		}
4733 		acb->btag[0] = rman_get_bustag(acb->sys_res_arcmsr[0]);
4734 		acb->bhandle[0] = rman_get_bushandle(acb->sys_res_arcmsr[0]);
4735 		acb->pmu = (struct MessageUnit_UNION *)mem_base0;
4736 		acb->rid[0] = rid0;
4737 		}
4738 		break;
4739 	case ACB_ADAPTER_TYPE_B: {
4740 		u_int32_t rid[]={ PCIR_BAR(0), PCIR_BAR(2) };
4741 		vm_offset_t	mem_base[]={0,0};
4742 		u_int16_t i;
4743 
4744 		for(i=0; i < 2; i++) {
4745 			acb->sys_res_arcmsr[i] = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid[i], RF_ACTIVE);
4746 			if(acb->sys_res_arcmsr[i] == NULL) {
4747 				arcmsr_free_resource(acb);
4748 				printf("arcmsr%d: bus_alloc_resource %d failure!\n", acb->pci_unit, i);
4749 				return ENOMEM;
4750 			}
4751 			if(rman_get_start(acb->sys_res_arcmsr[i]) <= 0) {
4752 				arcmsr_free_resource(acb);
4753 				printf("arcmsr%d: rman_get_start %d failure!\n", acb->pci_unit, i);
4754 				return ENXIO;
4755 			}
4756 			mem_base[i] = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[i]);
4757 			if(mem_base[i] == 0) {
4758 				arcmsr_free_resource(acb);
4759 				printf("arcmsr%d: rman_get_virtual %d failure!\n", acb->pci_unit, i);
4760 				return ENXIO;
4761 			}
4762 			acb->btag[i] = rman_get_bustag(acb->sys_res_arcmsr[i]);
4763 			acb->bhandle[i] = rman_get_bushandle(acb->sys_res_arcmsr[i]);
4764 		}
4765 		acb->mem_base0 = mem_base[0];
4766 		acb->mem_base1 = mem_base[1];
4767 		acb->rid[0] = rid[0];
4768 		acb->rid[1] = rid[1];
4769 		}
4770 		break;
4771 	case ACB_ADAPTER_TYPE_C: {
4772 		u_int32_t rid0 = PCIR_BAR(1);
4773 		vm_offset_t	mem_base0;
4774 
4775 		acb->sys_res_arcmsr[0] = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid0, RF_ACTIVE);
4776 		if(acb->sys_res_arcmsr[0] == NULL) {
4777 			arcmsr_free_resource(acb);
4778 			printf("arcmsr%d: bus_alloc_resource failure!\n", acb->pci_unit);
4779 			return ENOMEM;
4780 		}
4781 		if(rman_get_start(acb->sys_res_arcmsr[0]) <= 0) {
4782 			arcmsr_free_resource(acb);
4783 			printf("arcmsr%d: rman_get_start failure!\n", acb->pci_unit);
4784 			return ENXIO;
4785 		}
4786 		mem_base0 = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[0]);
4787 		if(mem_base0 == 0) {
4788 			arcmsr_free_resource(acb);
4789 			printf("arcmsr%d: rman_get_virtual failure!\n", acb->pci_unit);
4790 			return ENXIO;
4791 		}
4792 		acb->btag[0] = rman_get_bustag(acb->sys_res_arcmsr[0]);
4793 		acb->bhandle[0] = rman_get_bushandle(acb->sys_res_arcmsr[0]);
4794 		acb->pmu = (struct MessageUnit_UNION *)mem_base0;
4795 		acb->rid[0] = rid0;
4796 		}
4797 		break;
4798 	case ACB_ADAPTER_TYPE_D: {
4799 		u_int32_t rid0 = PCIR_BAR(0);
4800 		vm_offset_t	mem_base0;
4801 
4802 		acb->sys_res_arcmsr[0] = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid0, RF_ACTIVE);
4803 		if(acb->sys_res_arcmsr[0] == NULL) {
4804 			arcmsr_free_resource(acb);
4805 			printf("arcmsr%d: bus_alloc_resource failure!\n", acb->pci_unit);
4806 			return ENOMEM;
4807 		}
4808 		if(rman_get_start(acb->sys_res_arcmsr[0]) <= 0) {
4809 			arcmsr_free_resource(acb);
4810 			printf("arcmsr%d: rman_get_start failure!\n", acb->pci_unit);
4811 			return ENXIO;
4812 		}
4813 		mem_base0 = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[0]);
4814 		if(mem_base0 == 0) {
4815 			arcmsr_free_resource(acb);
4816 			printf("arcmsr%d: rman_get_virtual failure!\n", acb->pci_unit);
4817 			return ENXIO;
4818 		}
4819 		acb->btag[0] = rman_get_bustag(acb->sys_res_arcmsr[0]);
4820 		acb->bhandle[0] = rman_get_bushandle(acb->sys_res_arcmsr[0]);
4821 		acb->mem_base0 = mem_base0;
4822 		acb->rid[0] = rid0;
4823 		}
4824 		break;
4825 	case ACB_ADAPTER_TYPE_E: {
4826 		u_int32_t rid0 = PCIR_BAR(1);
4827 		vm_offset_t	mem_base0;
4828 
4829 		acb->sys_res_arcmsr[0] = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid0, RF_ACTIVE);
4830 		if(acb->sys_res_arcmsr[0] == NULL) {
4831 			arcmsr_free_resource(acb);
4832 			printf("arcmsr%d: bus_alloc_resource failure!\n", acb->pci_unit);
4833 			return ENOMEM;
4834 		}
4835 		if(rman_get_start(acb->sys_res_arcmsr[0]) <= 0) {
4836 			arcmsr_free_resource(acb);
4837 			printf("arcmsr%d: rman_get_start failure!\n", acb->pci_unit);
4838 			return ENXIO;
4839 		}
4840 		mem_base0 = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[0]);
4841 		if(mem_base0 == 0) {
4842 			arcmsr_free_resource(acb);
4843 			printf("arcmsr%d: rman_get_virtual failure!\n", acb->pci_unit);
4844 			return ENXIO;
4845 		}
4846 		acb->btag[0] = rman_get_bustag(acb->sys_res_arcmsr[0]);
4847 		acb->bhandle[0] = rman_get_bushandle(acb->sys_res_arcmsr[0]);
4848 		acb->pmu = (struct MessageUnit_UNION *)mem_base0;
4849 		acb->doneq_index = 0;
4850 		acb->in_doorbell = 0;
4851 		acb->out_doorbell = 0;
4852 		acb->rid[0] = rid0;
4853 		CHIP_REG_WRITE32(HBE_MessageUnit, 0, host_int_status, 0); /*clear interrupt*/
4854 		CHIP_REG_WRITE32(HBE_MessageUnit, 0, iobound_doorbell, ARCMSR_HBEMU_DOORBELL_SYNC); /* synchronize doorbell to 0 */
4855 		}
4856 		break;
4857 	case ACB_ADAPTER_TYPE_F: {
4858 		u_int32_t rid0 = PCIR_BAR(0);
4859 		vm_offset_t	mem_base0;
4860 
4861 		acb->sys_res_arcmsr[0] = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid0, RF_ACTIVE);
4862 		if(acb->sys_res_arcmsr[0] == NULL) {
4863 			arcmsr_free_resource(acb);
4864 			printf("arcmsr%d: bus_alloc_resource failure!\n", acb->pci_unit);
4865 			return ENOMEM;
4866 		}
4867 		if(rman_get_start(acb->sys_res_arcmsr[0]) <= 0) {
4868 			arcmsr_free_resource(acb);
4869 			printf("arcmsr%d: rman_get_start failure!\n", acb->pci_unit);
4870 			return ENXIO;
4871 		}
4872 		mem_base0 = (vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[0]);
4873 		if(mem_base0 == 0) {
4874 			arcmsr_free_resource(acb);
4875 			printf("arcmsr%d: rman_get_virtual failure!\n", acb->pci_unit);
4876 			return ENXIO;
4877 		}
4878 		acb->btag[0] = rman_get_bustag(acb->sys_res_arcmsr[0]);
4879 		acb->bhandle[0] = rman_get_bushandle(acb->sys_res_arcmsr[0]);
4880 		acb->pmu = (struct MessageUnit_UNION *)mem_base0;
4881 		acb->doneq_index = 0;
4882 		acb->in_doorbell = 0;
4883 		acb->out_doorbell = 0;
4884 		acb->rid[0] = rid0;
4885 		CHIP_REG_WRITE32(HBF_MessageUnit, 0, host_int_status, 0); /*clear interrupt*/
4886 		CHIP_REG_WRITE32(HBF_MessageUnit, 0, iobound_doorbell, ARCMSR_HBEMU_DOORBELL_SYNC); /* synchronize doorbell to 0 */
4887 		}
4888 		break;
4889 	}
4890 	return (0);
4891 }
4892 
4893 static int arcmsr_alloc_srb(device_t dev, struct AdapterControlBlock *acb)
4894 {
4895 	int rc;
4896 
4897 	if(bus_dma_tag_create(  /*PCI parent*/		bus_get_dma_tag(dev),
4898 				/*alignemnt*/		1,
4899 				/*boundary*/		0,
4900 				/*lowaddr*/		BUS_SPACE_MAXADDR,
4901 				/*highaddr*/		BUS_SPACE_MAXADDR,
4902 				/*filter*/		NULL,
4903 				/*filterarg*/		NULL,
4904 				/*maxsize*/		BUS_SPACE_MAXSIZE_32BIT,
4905 				/*nsegments*/		BUS_SPACE_UNRESTRICTED,
4906 				/*maxsegsz*/		BUS_SPACE_MAXSIZE_32BIT,
4907 				/*flags*/		0,
4908 				/*lockfunc*/		NULL,
4909 				/*lockarg*/		NULL,
4910 							&acb->parent_dmat) != 0)
4911 	{
4912 		printf("arcmsr%d: parent_dmat bus_dma_tag_create failure!\n", acb->pci_unit);
4913 		return ENOMEM;
4914 	}
4915 
4916 	/* Create a single tag describing a region large enough to hold all of the s/g lists we will need. */
4917 	if(bus_dma_tag_create(  /*parent_dmat*/		acb->parent_dmat,
4918 				/*alignment*/		1,
4919 				/*boundary*/		0,
4920 #ifdef PAE
4921 				/*lowaddr*/		BUS_SPACE_MAXADDR_32BIT,
4922 #else
4923 				/*lowaddr*/		BUS_SPACE_MAXADDR,
4924 #endif
4925 				/*highaddr*/		BUS_SPACE_MAXADDR,
4926 				/*filter*/		NULL,
4927 				/*filterarg*/		NULL,
4928 				/*maxsize*/		ARCMSR_MAX_SG_ENTRIES * PAGE_SIZE * ARCMSR_MAX_FREESRB_NUM,
4929 				/*nsegments*/		ARCMSR_MAX_SG_ENTRIES,
4930 				/*maxsegsz*/		BUS_SPACE_MAXSIZE_32BIT,
4931 				/*flags*/		0,
4932 				/*lockfunc*/		busdma_lock_mutex,
4933 				/*lockarg*/		&acb->isr_lock,
4934 							&acb->dm_segs_dmat) != 0)
4935 	{
4936 		arcmsr_free_resource(acb);
4937 		printf("arcmsr%d: dm_segs_dmat bus_dma_tag_create failure!\n", acb->pci_unit);
4938 		return ENOMEM;
4939 	}
4940 
4941 	/* DMA tag for our srb structures.... Allocate the freesrb memory */
4942 	if(bus_dma_tag_create(  /*parent_dmat*/		acb->parent_dmat,
4943 				/*alignment*/		0x20,
4944 				/*boundary*/		0,
4945 				/*lowaddr*/		BUS_SPACE_MAXADDR_32BIT,
4946 				/*highaddr*/		BUS_SPACE_MAXADDR,
4947 				/*filter*/		NULL,
4948 				/*filterarg*/		NULL,
4949 				/*maxsize*/		acb->max_coherent_size,
4950 				/*nsegments*/		1,
4951 				/*maxsegsz*/		BUS_SPACE_MAXSIZE_32BIT,
4952 				/*flags*/		0,
4953 				/*lockfunc*/		NULL,
4954 				/*lockarg*/		NULL,
4955 							&acb->srb_dmat) != 0)
4956 	{
4957 		arcmsr_free_resource(acb);
4958 		printf("arcmsr%d: srb_dmat bus_dma_tag_create failure!\n", acb->pci_unit);
4959 		return ENXIO;
4960 	}
4961 	/* Allocation for our srbs */
4962 	if(bus_dmamem_alloc(acb->srb_dmat, (void **)&acb->uncacheptr, ARCMSR_DMA_ALLOC_FLAG, &acb->srb_dmamap) != 0) {
4963 		arcmsr_free_resource(acb);
4964 		printf("arcmsr%d: srb_dmat bus_dmamem_alloc failure!\n", acb->pci_unit);
4965 		return ENXIO;
4966 	}
4967 	/* And permanently map them */
4968 	rc = bus_dmamap_load(acb->srb_dmat, acb->srb_dmamap, acb->uncacheptr, acb->max_coherent_size, arcmsr_map_free_srb, acb, /*flags*/0);
4969 	if((rc != 0) && (rc != EINPROGRESS)) {
4970 		arcmsr_free_resource(acb);
4971 		printf("arcmsr%d: srb_dmat bus_dmamap_load failure!\n", acb->pci_unit);
4972 		return ENXIO;
4973 	}
4974 	acb->acb_flags |= ACB_F_DMAMAP_SRB;
4975 	return (0);
4976 }
4977 
4978 static int arcmsr_alloc_xor_mem(device_t dev, struct AdapterControlBlock *acb)
4979 {
4980 	int rc, xor_ram;
4981 
4982 	xor_ram = (acb->firm_PicStatus >> 24) & 0x0f;
4983 	acb->xor_mega = (xor_ram - 1) * 32 + 128 + 3;
4984 	acb->init2cfg_size = sizeof(struct HostRamBuf) + (sizeof(struct XorSg) * acb->xor_mega);
4985 	/* DMA tag for XOR engine of Raid 5,6 */
4986 	if(bus_dma_tag_create(  /*parent_dmat*/		acb->parent_dmat,
4987 				/*alignment*/		0x40,
4988 				/*boundary*/		0,
4989 				/*lowaddr*/		BUS_SPACE_MAXADDR_32BIT,
4990 				/*highaddr*/		BUS_SPACE_MAXADDR,
4991 				/*filter*/		NULL,
4992 				/*filterarg*/		NULL,
4993 				/*maxsize*/		acb->init2cfg_size,
4994 				/*nsegments*/		1,
4995 				/*maxsegsz*/		acb->init2cfg_size,
4996 				/*flags*/		0,
4997 				/*lockfunc*/		NULL,
4998 				/*lockarg*/		NULL,
4999 							&acb->xortable_dmat) != 0)
5000 	{
5001 		arcmsr_free_resource(acb);
5002 		printf("arcmsr%d: xor table bus_dma_tag_create failure!\n", acb->pci_unit);
5003 		return ENXIO;
5004 	}
5005 	/* Allocation for xors */
5006 	if(bus_dmamem_alloc(acb->xortable_dmat, (void **)&acb->xortable, ARCMSR_DMA_ALLOC_FLAG, &acb->xortable_dmamap) != 0) {
5007 		arcmsr_free_resource(acb);
5008 		printf("arcmsr%d: xor table bus_dmamem_alloc failure!\n", acb->pci_unit);
5009 		return ENXIO;
5010 	}
5011 	/* And permanently map xor segs */
5012 	rc = bus_dmamap_load(acb->xortable_dmat, acb->xortable_dmamap, acb->xortable, acb->init2cfg_size, arcmsr_map_xor_sgtable, acb, /*flags*/0);
5013 	if((rc != 0) && (rc != EINPROGRESS)) {
5014 		arcmsr_free_resource(acb);
5015 		printf("arcmsr%d: xor table bus_dmamap_load failure!\n", acb->pci_unit);
5016 		return ENXIO;
5017 	}
5018 	acb->acb_flags |= ACB_F_DMAMAP_SGTABLE;
5019 
5020 	/* DMA tag for XOR engine of Raid 5,6 */
5021 	if(bus_dma_tag_create(  /*parent_dmat*/		acb->parent_dmat,
5022 				/*alignment*/		0x1000,
5023 				/*boundary*/		0,
5024 				/*lowaddr*/		BUS_SPACE_MAXADDR_32BIT,
5025 				/*highaddr*/		BUS_SPACE_MAXADDR,
5026 				/*filter*/		NULL,
5027 				/*filterarg*/		NULL,
5028 				/*maxsize*/		(ARCMSR_XOR_SEG_SIZE * acb->xor_mega),
5029 				/*nsegments*/		acb->xor_mega,
5030 				/*maxsegsz*/		ARCMSR_XOR_SEG_SIZE,
5031 				/*flags*/		0,
5032 				/*lockfunc*/		NULL,
5033 				/*lockarg*/		NULL,
5034 							&acb->xor_dmat) != 0)
5035 	{
5036 		arcmsr_free_resource(acb);
5037 		printf("arcmsr%d: xor bus_dma_tag_create failure!\n", acb->pci_unit);
5038 		return ENXIO;
5039 	}
5040 	/* Allocation for xors */
5041 	if(bus_dmamem_alloc(acb->xor_dmat, (void **)&acb->xorptr, ARCMSR_DMA_ALLOC_FLAG, &acb->xor_dmamap) != 0) {
5042 		arcmsr_free_resource(acb);
5043 		printf("arcmsr%d: xor bus_dmamem_alloc failure!\n", acb->pci_unit);
5044 		return ENXIO;
5045 	}
5046 	/* And permanently map xor segs */
5047 	rc = bus_dmamap_load(acb->xor_dmat, acb->xor_dmamap, acb->xorptr, (ARCMSR_XOR_SEG_SIZE * acb->xor_mega), arcmsr_map_xor_sg, acb, /*flags*/0);
5048 	if((rc != 0) && (rc != EINPROGRESS)) {
5049 		arcmsr_free_resource(acb);
5050 		printf("arcmsr%d: xor bus_dmamap_load failure!\n", acb->pci_unit);
5051 		return ENXIO;
5052 	}
5053 	acb->acb_flags |= ACB_F_DMAMAP_SG;
5054 	return (0);
5055 }
5056 
5057 static u_int32_t arcmsr_initialize(device_t dev)
5058 {
5059 	struct AdapterControlBlock *acb = device_get_softc(dev);
5060 	int i, j, rc;
5061 	u_int32_t vendor_dev_id;
5062 
5063 	vendor_dev_id = pci_get_devid(dev);
5064 	acb->vendor_device_id = vendor_dev_id;
5065 	acb->sub_device_id = pci_read_config(dev, PCIR_SUBDEV_0, 2);
5066 	rc = arcmsr_define_adapter_type(acb);
5067 	if (rc)
5068 		return rc;
5069 	rc = arcmsr_map_pcireg(dev, acb);
5070 	if (rc)
5071 		return rc;
5072 	rc = arcmsr_alloc_srb(dev, acb);
5073 	if (rc)
5074 		return rc;
5075 	// allocate N times 1 MB physical continuous memory for XOR engine of Raid 5, 6.
5076 	if ((acb->firm_PicStatus >> 24) & 0x0f) {
5077 		rc = arcmsr_alloc_xor_mem(dev, acb);
5078 		if (rc)
5079 			return rc;
5080 	}
5081 	if(acb->acb_flags & (ACB_F_MAPFREESRB_FAILD | ACB_F_MAPXOR_FAILD)) {
5082 		arcmsr_free_resource(acb);
5083 		printf("arcmsr%d: map free srb or xor buffer failure!\n", acb->pci_unit);
5084 		return ENXIO;
5085 	}
5086 	acb->acb_flags  |= (ACB_F_MESSAGE_WQBUFFER_CLEARED|ACB_F_MESSAGE_RQBUFFER_CLEARED|ACB_F_MESSAGE_WQBUFFER_READ);
5087 	acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER;
5088 	/*
5089 	********************************************************************
5090 	** init raid volume state
5091 	********************************************************************
5092 	*/
5093 	for(i=0; i < ARCMSR_MAX_TARGETID; i++) {
5094 		for(j=0; j < ARCMSR_MAX_TARGETLUN; j++) {
5095 			acb->devstate[i][j] = ARECA_RAID_GONE;
5096 		}
5097 	}
5098 	arcmsr_iop_init(acb);
5099 	return(0);
5100 }
5101 
5102 static int arcmsr_setup_msix(struct AdapterControlBlock *acb)
5103 {
5104 	int i;
5105 
5106 	for (i = 0; i < acb->msix_vectors; i++) {
5107 		acb->irq_id[i] = 1 + i;
5108 		acb->irqres[i] = bus_alloc_resource_any(acb->pci_dev,
5109 		    SYS_RES_IRQ, &acb->irq_id[i], RF_ACTIVE);
5110 		if (acb->irqres[i] == NULL) {
5111 			printf("arcmsr: Can't allocate MSI-X resource\n");
5112 			goto irq_alloc_failed;
5113 		}
5114 		if (bus_setup_intr(acb->pci_dev, acb->irqres[i],
5115 		    INTR_MPSAFE | INTR_TYPE_CAM, NULL, arcmsr_intr_handler,
5116 		    acb, &acb->ih[i])) {
5117 			printf("arcmsr: Cannot set up MSI-X interrupt handler\n");
5118 			goto irq_alloc_failed;
5119 		}
5120 	}
5121 	printf("arcmsr: MSI-X INT enabled\n");
5122 	acb->acb_flags |= ACB_F_MSIX_ENABLED;
5123 	return TRUE;
5124 
5125 irq_alloc_failed:
5126 	arcmsr_teardown_intr(acb->pci_dev, acb);
5127 	return FALSE;
5128 }
5129 
5130 /*
5131 ************************************************************************
5132 ************************************************************************
5133 */
5134 static int arcmsr_attach(device_t dev)
5135 {
5136 	struct make_dev_args args;
5137 	struct AdapterControlBlock *acb=(struct AdapterControlBlock *)device_get_softc(dev);
5138 	u_int32_t unit=device_get_unit(dev);
5139 	struct ccb_setasync csa;
5140 	struct cam_devq	*devq;	/* Device Queue to use for this SIM */
5141 	struct resource	*irqres;
5142 
5143 	if(acb == NULL) {
5144 		printf("arcmsr%d: cannot allocate softc\n", unit);
5145 		return (ENOMEM);
5146 	}
5147 	arcmsr_mutex_init(acb);
5148 	acb->pci_dev = dev;
5149 	acb->pci_unit = unit;
5150 	if(arcmsr_initialize(dev)) {
5151 		printf("arcmsr%d: initialize failure!\n", unit);
5152 		goto initialize_failed;
5153 	}
5154 	/* After setting up the adapter, map our interrupt */
5155 	acb->msix_vectors = ARCMSR_NUM_MSIX_VECTORS;
5156 	if (pci_alloc_msix(dev, &acb->msix_vectors) == 0) {
5157 		if (arcmsr_setup_msix(acb) == TRUE)
5158 			goto irqx;
5159 	}
5160 	acb->irq_id[0] = 0;
5161 	irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ, &acb->irq_id[0], RF_SHAREABLE | RF_ACTIVE);
5162 	if(irqres == NULL ||
5163 		bus_setup_intr(dev, irqres, INTR_TYPE_CAM|INTR_ENTROPY|INTR_MPSAFE, NULL, arcmsr_intr_handler, acb, &acb->ih[0])) {
5164 		printf("arcmsr%d: unable to register interrupt handler!\n", unit);
5165 		goto setup_intr_failed;
5166 	}
5167 	acb->irqres[0] = irqres;
5168 irqx:
5169 	/*
5170 	 * Now let the CAM generic SCSI layer find the SCSI devices on
5171 	 * the bus *  start queue to reset to the idle loop. *
5172 	 * Create device queue of SIM(s) *  (MAX_START_JOB - 1) :
5173 	 * max_sim_transactions
5174 	*/
5175 	devq = cam_simq_alloc(acb->maxOutstanding);
5176 	if(devq == NULL) {
5177 		printf("arcmsr%d: cam_simq_alloc failure!\n", unit);
5178 		goto simq_alloc_failed;
5179 	}
5180 	acb->psim = cam_sim_alloc(arcmsr_action, arcmsr_poll, "arcmsr", acb, unit, &acb->isr_lock, 1, ARCMSR_MAX_OUTSTANDING_CMD, devq);
5181 	if(acb->psim == NULL) {
5182 		printf("arcmsr%d: cam_sim_alloc failure!\n", unit);
5183 		goto sim_alloc_failed;
5184 	}
5185 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
5186 	if(xpt_bus_register(acb->psim, dev, 0) != CAM_SUCCESS) {
5187 		printf("arcmsr%d: xpt_bus_register failure!\n", unit);
5188 		goto xpt_bus_failed;
5189 	}
5190 	if(xpt_create_path(&acb->ppath, /* periph */ NULL, cam_sim_path(acb->psim), CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
5191 		printf("arcmsr%d: xpt_create_path failure!\n", unit);
5192 		goto xpt_path_failed;
5193 	}
5194 	/*
5195 	****************************************************
5196 	*/
5197 	memset(&csa, 0, sizeof(csa));
5198 	xpt_setup_ccb(&csa.ccb_h, acb->ppath, /*priority*/5);
5199 	csa.ccb_h.func_code = XPT_SASYNC_CB;
5200 	csa.event_enable = AC_FOUND_DEVICE|AC_LOST_DEVICE;
5201 	csa.callback = arcmsr_async;
5202 	csa.callback_arg = acb->psim;
5203 	xpt_action((union ccb *)&csa);
5204 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
5205 	/* Create the control device.  */
5206 	make_dev_args_init(&args);
5207 	args.mda_devsw = &arcmsr_cdevsw;
5208 	args.mda_uid = UID_ROOT;
5209 	args.mda_gid = GID_WHEEL /* GID_OPERATOR */;
5210 	args.mda_mode = S_IRUSR | S_IWUSR;
5211 	args.mda_si_drv1 = acb;
5212 	(void)make_dev_s(&args, &acb->ioctl_dev, "arcmsr%d", unit);
5213 
5214 	(void)make_dev_alias(acb->ioctl_dev, "arc%d", unit);
5215 	arcmsr_callout_init(&acb->devmap_callout);
5216 	callout_reset(&acb->devmap_callout, 60 * hz, arcmsr_polling_devmap, acb);
5217 	return (0);
5218 xpt_path_failed:
5219 	xpt_bus_deregister(cam_sim_path(acb->psim));
5220 xpt_bus_failed:
5221 	cam_sim_free(acb->psim, /* free_simq */ TRUE);
5222 sim_alloc_failed:
5223 	cam_simq_free(devq);
5224 simq_alloc_failed:
5225 	arcmsr_teardown_intr(dev, acb);
5226 setup_intr_failed:
5227 	arcmsr_free_resource(acb);
5228 initialize_failed:
5229 	arcmsr_mutex_destroy(acb);
5230 	return ENXIO;
5231 }
5232 
5233 /*
5234 ************************************************************************
5235 ************************************************************************
5236 */
5237 static int arcmsr_probe(device_t dev)
5238 {
5239 	u_int32_t id;
5240 	u_int16_t sub_device_id;
5241 	static char buf[256];
5242 	char x_type[]={"unknown"};
5243 	char *type;
5244 	int raid6 = 1;
5245 
5246 	if (pci_get_vendor(dev) != PCI_VENDOR_ID_ARECA) {
5247 		return (ENXIO);
5248 	}
5249 	sub_device_id = pci_read_config(dev, PCIR_SUBDEV_0, 2);
5250 	switch(id = pci_get_devid(dev)) {
5251 	case PCIDevVenIDARC1110:
5252 	case PCIDevVenIDARC1200:
5253 	case PCIDevVenIDARC1201:
5254 	case PCIDevVenIDARC1210:
5255 		raid6 = 0;
5256 		/*FALLTHRU*/
5257 	case PCIDevVenIDARC1120:
5258 	case PCIDevVenIDARC1130:
5259 	case PCIDevVenIDARC1160:
5260 	case PCIDevVenIDARC1170:
5261 	case PCIDevVenIDARC1220:
5262 	case PCIDevVenIDARC1230:
5263 	case PCIDevVenIDARC1231:
5264 	case PCIDevVenIDARC1260:
5265 	case PCIDevVenIDARC1261:
5266 	case PCIDevVenIDARC1270:
5267 	case PCIDevVenIDARC1280:
5268 		type = "SATA 3G";
5269 		break;
5270 	case PCIDevVenIDARC1212:
5271 	case PCIDevVenIDARC1222:
5272 	case PCIDevVenIDARC1380:
5273 	case PCIDevVenIDARC1381:
5274 	case PCIDevVenIDARC1680:
5275 	case PCIDevVenIDARC1681:
5276 		type = "SAS 3G";
5277 		break;
5278 	case PCIDevVenIDARC1880:
5279 	case PCIDevVenIDARC1882:
5280 	case PCIDevVenIDARC1883:
5281 	case PCIDevVenIDARC1213:
5282 	case PCIDevVenIDARC1223:
5283 		if ((sub_device_id == ARECA_SUB_DEV_ID_1883) ||
5284 		    (sub_device_id == ARECA_SUB_DEV_ID_1216) ||
5285 		    (sub_device_id == ARECA_SUB_DEV_ID_1226))
5286 			type = "SAS 12G,SATA 6G";
5287 		else
5288 			type = "SAS,SATA 6G";
5289 		break;
5290 	case PCIDevVenIDARC1884:
5291 		type = "SAS 12G";
5292 		break;
5293 	case PCIDevVenIDARC1886_0:
5294 	case PCIDevVenIDARC1886_:
5295 	case PCIDevVenIDARC1886:
5296 		type = "NVME,SAS-12G,SATA-6G";
5297 		break;
5298 	case PCIDevVenIDARC1214:
5299 	case PCIDevVenIDARC1224:
5300 		if ((sub_device_id == ARECA_SUB_DEV_ID_1214) ||
5301 		    (sub_device_id == ARECA_SUB_DEV_ID_1224))
5302 			type = "SAS 6G";
5303 		else
5304 			type = "SATA 6G";
5305 		break;
5306 	case PCIDevVenIDARC1203:
5307 		type = "SATA 6G";
5308 		break;
5309 	default:
5310 		type = x_type;
5311 		raid6 = 0;
5312 		break;
5313 	}
5314 	if(type == x_type)
5315 		return(ENXIO);
5316 	sprintf(buf, "Areca %s Host Adapter RAID Controller %s\n%s\n",
5317 		type, raid6 ? "(RAID6 capable)" : "", ARCMSR_DRIVER_VERSION);
5318 	device_set_desc_copy(dev, buf);
5319 	return (BUS_PROBE_DEFAULT);
5320 }
5321 /*
5322 ************************************************************************
5323 ************************************************************************
5324 */
5325 static int arcmsr_shutdown(device_t dev)
5326 {
5327 	u_int32_t  i;
5328 	struct CommandControlBlock *srb;
5329 	struct AdapterControlBlock *acb=(struct AdapterControlBlock *)device_get_softc(dev);
5330 
5331 	/* stop adapter background rebuild */
5332 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
5333 	/* disable all outbound interrupt */
5334 	arcmsr_disable_allintr(acb);
5335 	arcmsr_stop_adapter_bgrb(acb);
5336 	arcmsr_flush_adapter_cache(acb);
5337 	/* abort all outstanding command */
5338 	acb->acb_flags |= ACB_F_SCSISTOPADAPTER;
5339 	acb->acb_flags &= ~ACB_F_IOP_INITED;
5340 	if(acb->srboutstandingcount != 0) {
5341 		/*clear and abort all outbound posted Q*/
5342 		arcmsr_done4abort_postqueue(acb);
5343 		/* talk to iop 331 outstanding command aborted*/
5344 		arcmsr_abort_allcmd(acb);
5345 		for(i=0; i < ARCMSR_MAX_FREESRB_NUM; i++) {
5346 			srb = acb->psrb_pool[i];
5347 			if(srb->srb_state == ARCMSR_SRB_START) {
5348 				srb->srb_state = ARCMSR_SRB_ABORTED;
5349 				srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
5350 				arcmsr_srb_complete(srb, 1);
5351 			}
5352 		}
5353 	}
5354 	acb->srboutstandingcount = 0;
5355 	acb->workingsrb_doneindex = 0;
5356 	acb->workingsrb_startindex = 0;
5357 	acb->pktRequestCount = 0;
5358 	acb->pktReturnCount = 0;
5359 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
5360 	return (0);
5361 }
5362 /*
5363 ************************************************************************
5364 ************************************************************************
5365 */
5366 static void arcmsr_teardown_intr(device_t dev, struct AdapterControlBlock *acb)
5367 {
5368 	int i;
5369 
5370 	if (acb->acb_flags & ACB_F_MSIX_ENABLED) {
5371 		for (i = 0; i < acb->msix_vectors; i++) {
5372 			if (acb->ih[i])
5373 				bus_teardown_intr(dev, acb->irqres[i], acb->ih[i]);
5374 			if (acb->irqres[i] != NULL)
5375 				bus_release_resource(dev, SYS_RES_IRQ,
5376 				    acb->irq_id[i], acb->irqres[i]);
5377 
5378 			acb->ih[i] = NULL;
5379 		}
5380 		pci_release_msi(dev);
5381 	} else {
5382 		if (acb->ih[0])
5383 			bus_teardown_intr(dev, acb->irqres[0], acb->ih[0]);
5384 		if (acb->irqres[0] != NULL)
5385 			bus_release_resource(dev, SYS_RES_IRQ,
5386 			    acb->irq_id[0], acb->irqres[0]);
5387 		acb->ih[0] = NULL;
5388 	}
5389 
5390 }
5391 /*
5392 ************************************************************************
5393 ************************************************************************
5394 */
5395 static int arcmsr_detach(device_t dev)
5396 {
5397 	struct AdapterControlBlock *acb=(struct AdapterControlBlock *)device_get_softc(dev);
5398 
5399 	callout_stop(&acb->devmap_callout);
5400 	arcmsr_teardown_intr(dev, acb);
5401 	arcmsr_shutdown(dev);
5402 	arcmsr_free_resource(acb);
5403 	ARCMSR_LOCK_ACQUIRE(&acb->isr_lock);
5404 	xpt_async(AC_LOST_DEVICE, acb->ppath, NULL);
5405 	xpt_free_path(acb->ppath);
5406 	xpt_bus_deregister(cam_sim_path(acb->psim));
5407 	cam_sim_free(acb->psim, TRUE);
5408 	ARCMSR_LOCK_RELEASE(&acb->isr_lock);
5409 	arcmsr_mutex_destroy(acb);
5410 	return (0);
5411 }
5412 
5413 #ifdef ARCMSR_DEBUG1
5414 static void arcmsr_dump_data(struct AdapterControlBlock *acb)
5415 {
5416 	if((acb->pktRequestCount - acb->pktReturnCount) == 0)
5417 		return;
5418 	printf("Command Request Count   =0x%x\n",acb->pktRequestCount);
5419 	printf("Command Return Count    =0x%x\n",acb->pktReturnCount);
5420 	printf("Command (Req-Rtn) Count =0x%x\n",(acb->pktRequestCount - acb->pktReturnCount));
5421 	printf("Queued Command Count    =0x%x\n",acb->srboutstandingcount);
5422 }
5423 #endif
5424