xref: /illumos-gate/usr/src/uts/common/io/mr_sas/mr_sas.c (revision f6da83d4178694e7113b71d1e452f15b296f73d8)
1 /*
2  * mr_sas.c: source for mr_sas driver
3  *
4  * MegaRAID device driver for SAS2.0 controllers
5  * Copyright (c) 2008-2010, LSI Logic Corporation.
6  * All rights reserved.
7  *
8  * Version:
9  * Author:
10  *		Arun Chandrashekhar
11  *		Manju R
12  *		Rajesh Prabhakaran
13  * 		Seokmann Ju
14  *
15  * Redistribution and use in source and binary forms, with or without
16  * modification, are permitted provided that the following conditions are met:
17  *
18  * 1. Redistributions of source code must retain the above copyright notice,
19  *    this list of conditions and the following disclaimer.
20  *
21  * 2. Redistributions in binary form must reproduce the above copyright notice,
22  *    this list of conditions and the following disclaimer in the documentation
23  *    and/or other materials provided with the distribution.
24  *
25  * 3. Neither the name of the author nor the names of its contributors may be
26  *    used to endorse or promote products derived from this software without
27  *    specific prior written permission.
28  *
29  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
30  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
31  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
32  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
33  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
34  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
35  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
36  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
37  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
38  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
39  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
40  * DAMAGE.
41  */
42 
43 /*
44  * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
45  */
46 
47 #include <sys/types.h>
48 #include <sys/param.h>
49 #include <sys/file.h>
50 #include <sys/errno.h>
51 #include <sys/open.h>
52 #include <sys/cred.h>
53 #include <sys/modctl.h>
54 #include <sys/conf.h>
55 #include <sys/devops.h>
56 #include <sys/cmn_err.h>
57 #include <sys/kmem.h>
58 #include <sys/stat.h>
59 #include <sys/mkdev.h>
60 #include <sys/pci.h>
61 #include <sys/scsi/scsi.h>
62 #include <sys/ddi.h>
63 #include <sys/sunddi.h>
64 #include <sys/atomic.h>
65 #include <sys/signal.h>
66 #include <sys/byteorder.h>
67 #include <sys/sdt.h>
68 #include <sys/fs/dv_node.h>	/* devfs_clean */
69 
70 #include "mr_sas.h"
71 
72 /*
73  * FMA header files
74  */
75 #include <sys/ddifm.h>
76 #include <sys/fm/protocol.h>
77 #include <sys/fm/util.h>
78 #include <sys/fm/io/ddi.h>
79 
80 /*
81  * Local static data
82  */
83 static void	*mrsas_state = NULL;
84 static volatile boolean_t	mrsas_relaxed_ordering = B_TRUE;
85 static volatile int 	debug_level_g = CL_NONE;
86 static volatile int 	msi_enable = 1;
87 static volatile int 	ctio_enable = 1;
88 
89 /* Default Timeout value to issue online controller reset */
90 static volatile int  debug_timeout_g  = 0x12C;
91 /* Simulate consecutive firmware fault */
92 static volatile int  debug_fw_faults_after_ocr_g  = 0;
93 
94 #ifdef OCRDEBUG
95 /* Simulate three consecutive timeout for an IO */
96 static volatile int  debug_consecutive_timeout_after_ocr_g  = 0;
97 #endif
98 
99 #pragma weak scsi_hba_open
100 #pragma weak scsi_hba_close
101 #pragma weak scsi_hba_ioctl
102 
103 static ddi_dma_attr_t mrsas_generic_dma_attr = {
104 	DMA_ATTR_V0,		/* dma_attr_version */
105 	0,			/* low DMA address range */
106 	0xFFFFFFFFU,		/* high DMA address range */
107 	0xFFFFFFFFU,		/* DMA counter register  */
108 	8,			/* DMA address alignment */
109 	0x07,			/* DMA burstsizes  */
110 	1,			/* min DMA size */
111 	0xFFFFFFFFU,		/* max DMA size */
112 	0xFFFFFFFFU,		/* segment boundary */
113 	MRSAS_MAX_SGE_CNT,	/* dma_attr_sglen */
114 	512,			/* granularity of device */
115 	0			/* bus specific DMA flags */
116 };
117 
118 int32_t mrsas_max_cap_maxxfer = 0x1000000;
119 
120 /*
121  * cb_ops contains base level routines
122  */
123 static struct cb_ops mrsas_cb_ops = {
124 	mrsas_open,		/* open */
125 	mrsas_close,		/* close */
126 	nodev,			/* strategy */
127 	nodev,			/* print */
128 	nodev,			/* dump */
129 	nodev,			/* read */
130 	nodev,			/* write */
131 	mrsas_ioctl,		/* ioctl */
132 	nodev,			/* devmap */
133 	nodev,			/* mmap */
134 	nodev,			/* segmap */
135 	nochpoll,		/* poll */
136 	nodev,			/* cb_prop_op */
137 	0,			/* streamtab  */
138 	D_NEW | D_HOTPLUG,	/* cb_flag */
139 	CB_REV,			/* cb_rev */
140 	nodev,			/* cb_aread */
141 	nodev			/* cb_awrite */
142 };
143 
144 /*
145  * dev_ops contains configuration routines
146  */
147 static struct dev_ops mrsas_ops = {
148 	DEVO_REV,		/* rev, */
149 	0,			/* refcnt */
150 	mrsas_getinfo,		/* getinfo */
151 	nulldev,		/* identify */
152 	nulldev,		/* probe */
153 	mrsas_attach,		/* attach */
154 	mrsas_detach,		/* detach */
155 #ifdef  __sparc
156 	mrsas_reset,		/* reset */
157 #else	/* __sparc */
158 	nodev,
159 #endif  /* __sparc */
160 	&mrsas_cb_ops,		/* char/block ops */
161 	NULL,			/* bus ops */
162 	NULL,			/* power */
163 #ifdef	__sparc
164 	ddi_quiesce_not_needed
165 #else	/* __sparc */
166 	mrsas_quiesce		/* quiesce */
167 #endif	/* __sparc */
168 };
169 
170 char _depends_on[] = "misc/scsi";
171 
172 static struct modldrv modldrv = {
173 	&mod_driverops,		/* module type - driver */
174 	MRSAS_VERSION,
175 	&mrsas_ops,		/* driver ops */
176 };
177 
178 static struct modlinkage modlinkage = {
179 	MODREV_1,	/* ml_rev - must be MODREV_1 */
180 	&modldrv,	/* ml_linkage */
181 	NULL		/* end of driver linkage */
182 };
183 
184 static struct ddi_device_acc_attr endian_attr = {
185 	DDI_DEVICE_ATTR_V1,
186 	DDI_STRUCTURE_LE_ACC,
187 	DDI_STRICTORDER_ACC,
188 	DDI_DEFAULT_ACC
189 };
190 
191 
192 /*
193  * ************************************************************************** *
194  *                                                                            *
195  *         common entry points - for loadable kernel modules                  *
196  *                                                                            *
197  * ************************************************************************** *
198  */
199 
200 int
201 _init(void)
202 {
203 	int ret;
204 
205 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
206 
207 	ret = ddi_soft_state_init(&mrsas_state,
208 	    sizeof (struct mrsas_instance), 0);
209 
210 	if (ret != DDI_SUCCESS) {
211 		con_log(CL_ANN, (CE_WARN, "mr_sas: could not init state"));
212 		return (ret);
213 	}
214 
215 	if ((ret = scsi_hba_init(&modlinkage)) != DDI_SUCCESS) {
216 		con_log(CL_ANN, (CE_WARN, "mr_sas: could not init scsi hba"));
217 		ddi_soft_state_fini(&mrsas_state);
218 		return (ret);
219 	}
220 
221 	ret = mod_install(&modlinkage);
222 
223 	if (ret != DDI_SUCCESS) {
224 		con_log(CL_ANN, (CE_WARN, "mr_sas: mod_install failed"));
225 		scsi_hba_fini(&modlinkage);
226 		ddi_soft_state_fini(&mrsas_state);
227 	}
228 
229 	return (ret);
230 }
231 
232 int
233 _info(struct modinfo *modinfop)
234 {
235 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
236 
237 	return (mod_info(&modlinkage, modinfop));
238 }
239 
240 int
241 _fini(void)
242 {
243 	int ret;
244 
245 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
246 
247 	if ((ret = mod_remove(&modlinkage)) != DDI_SUCCESS)
248 		return (ret);
249 
250 	scsi_hba_fini(&modlinkage);
251 
252 	ddi_soft_state_fini(&mrsas_state);
253 
254 	return (ret);
255 }
256 
257 
258 /*
259  * ************************************************************************** *
260  *                                                                            *
261  *               common entry points - for autoconfiguration                  *
262  *                                                                            *
263  * ************************************************************************** *
264  */
265 
266 static int
267 mrsas_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
268 {
269 	int		instance_no;
270 	int		nregs;
271 	uint8_t		added_isr_f = 0;
272 	uint8_t		added_soft_isr_f = 0;
273 	uint8_t		create_devctl_node_f = 0;
274 	uint8_t		create_scsi_node_f = 0;
275 	uint8_t		create_ioc_node_f = 0;
276 	uint8_t		tran_alloc_f = 0;
277 	uint8_t 	irq;
278 	uint16_t	vendor_id;
279 	uint16_t	device_id;
280 	uint16_t	subsysvid;
281 	uint16_t	subsysid;
282 	uint16_t	command;
283 	off_t		reglength = 0;
284 	int		intr_types = 0;
285 	char		*data;
286 
287 	scsi_hba_tran_t		*tran;
288 	ddi_dma_attr_t  tran_dma_attr;
289 	struct mrsas_instance	*instance;
290 
291 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
292 
293 	/* CONSTCOND */
294 	ASSERT(NO_COMPETING_THREADS);
295 
296 	instance_no = ddi_get_instance(dip);
297 
298 	/*
299 	 * check to see whether this device is in a DMA-capable slot.
300 	 */
301 	if (ddi_slaveonly(dip) == DDI_SUCCESS) {
302 		con_log(CL_ANN, (CE_WARN,
303 		    "mr_sas%d: Device in slave-only slot, unused",
304 		    instance_no));
305 		return (DDI_FAILURE);
306 	}
307 
308 	switch (cmd) {
309 		case DDI_ATTACH:
310 			con_log(CL_DLEVEL1, (CE_NOTE, "mr_sas: DDI_ATTACH"));
311 			/* allocate the soft state for the instance */
312 			if (ddi_soft_state_zalloc(mrsas_state, instance_no)
313 			    != DDI_SUCCESS) {
314 				con_log(CL_ANN, (CE_WARN,
315 				    "mr_sas%d: Failed to allocate soft state",
316 				    instance_no));
317 
318 				return (DDI_FAILURE);
319 			}
320 
321 			instance = (struct mrsas_instance *)ddi_get_soft_state
322 			    (mrsas_state, instance_no);
323 
324 			if (instance == NULL) {
325 				con_log(CL_ANN, (CE_WARN,
326 				    "mr_sas%d: Bad soft state", instance_no));
327 
328 				ddi_soft_state_free(mrsas_state, instance_no);
329 
330 				return (DDI_FAILURE);
331 			}
332 
333 			bzero((caddr_t)instance,
334 			    sizeof (struct mrsas_instance));
335 
336 			instance->func_ptr = kmem_zalloc(
337 			    sizeof (struct mrsas_func_ptr), KM_SLEEP);
338 			ASSERT(instance->func_ptr);
339 
340 			/* Setup the PCI configuration space handles */
341 			if (pci_config_setup(dip, &instance->pci_handle) !=
342 			    DDI_SUCCESS) {
343 				con_log(CL_ANN, (CE_WARN,
344 				    "mr_sas%d: pci config setup failed ",
345 				    instance_no));
346 
347 				kmem_free(instance->func_ptr,
348 				    sizeof (struct mrsas_func_ptr));
349 				ddi_soft_state_free(mrsas_state, instance_no);
350 
351 				return (DDI_FAILURE);
352 			}
353 
354 			if (ddi_dev_nregs(dip, &nregs) != DDI_SUCCESS) {
355 				con_log(CL_ANN, (CE_WARN,
356 				    "mr_sas: failed to get registers."));
357 
358 				pci_config_teardown(&instance->pci_handle);
359 				kmem_free(instance->func_ptr,
360 				    sizeof (struct mrsas_func_ptr));
361 				ddi_soft_state_free(mrsas_state, instance_no);
362 
363 				return (DDI_FAILURE);
364 			}
365 
366 			vendor_id = pci_config_get16(instance->pci_handle,
367 			    PCI_CONF_VENID);
368 			device_id = pci_config_get16(instance->pci_handle,
369 			    PCI_CONF_DEVID);
370 
371 			subsysvid = pci_config_get16(instance->pci_handle,
372 			    PCI_CONF_SUBVENID);
373 			subsysid = pci_config_get16(instance->pci_handle,
374 			    PCI_CONF_SUBSYSID);
375 
376 			pci_config_put16(instance->pci_handle, PCI_CONF_COMM,
377 			    (pci_config_get16(instance->pci_handle,
378 			    PCI_CONF_COMM) | PCI_COMM_ME));
379 			irq = pci_config_get8(instance->pci_handle,
380 			    PCI_CONF_ILINE);
381 
382 			con_log(CL_DLEVEL1, (CE_CONT, "mr_sas%d: "
383 			    "0x%x:0x%x 0x%x:0x%x, irq:%d drv-ver:%s",
384 			    instance_no, vendor_id, device_id, subsysvid,
385 			    subsysid, irq, MRSAS_VERSION));
386 
387 			/* enable bus-mastering */
388 			command = pci_config_get16(instance->pci_handle,
389 			    PCI_CONF_COMM);
390 
391 			if (!(command & PCI_COMM_ME)) {
392 				command |= PCI_COMM_ME;
393 
394 				pci_config_put16(instance->pci_handle,
395 				    PCI_CONF_COMM, command);
396 
397 				con_log(CL_ANN, (CE_CONT, "mr_sas%d: "
398 				    "enable bus-mastering", instance_no));
399 			} else {
400 				con_log(CL_DLEVEL1, (CE_CONT, "mr_sas%d: "
401 				"bus-mastering already set", instance_no));
402 			}
403 
404 			/* initialize function pointers */
405 			if ((device_id == PCI_DEVICE_ID_LSI_2108VDE) ||
406 			    (device_id == PCI_DEVICE_ID_LSI_2108V)) {
407 				con_log(CL_DLEVEL1, (CE_CONT, "mr_sas%d: "
408 				    "2108V/DE detected", instance_no));
409 				instance->func_ptr->read_fw_status_reg =
410 				    read_fw_status_reg_ppc;
411 				instance->func_ptr->issue_cmd = issue_cmd_ppc;
412 				instance->func_ptr->issue_cmd_in_sync_mode =
413 				    issue_cmd_in_sync_mode_ppc;
414 				instance->func_ptr->issue_cmd_in_poll_mode =
415 				    issue_cmd_in_poll_mode_ppc;
416 				instance->func_ptr->enable_intr =
417 				    enable_intr_ppc;
418 				instance->func_ptr->disable_intr =
419 				    disable_intr_ppc;
420 				instance->func_ptr->intr_ack = intr_ack_ppc;
421 			} else {
422 				con_log(CL_ANN, (CE_WARN,
423 				    "mr_sas: Invalid device detected"));
424 
425 				pci_config_teardown(&instance->pci_handle);
426 				kmem_free(instance->func_ptr,
427 				    sizeof (struct mrsas_func_ptr));
428 				ddi_soft_state_free(mrsas_state, instance_no);
429 
430 				return (DDI_FAILURE);
431 			}
432 
433 			instance->baseaddress = pci_config_get32(
434 			    instance->pci_handle, PCI_CONF_BASE0);
435 			instance->baseaddress &= 0x0fffc;
436 
437 			instance->dip		= dip;
438 			instance->vendor_id	= vendor_id;
439 			instance->device_id	= device_id;
440 			instance->subsysvid	= subsysvid;
441 			instance->subsysid	= subsysid;
442 			instance->instance	= instance_no;
443 
444 			/* Initialize FMA */
445 			instance->fm_capabilities = ddi_prop_get_int(
446 			    DDI_DEV_T_ANY, instance->dip, DDI_PROP_DONTPASS,
447 			    "fm-capable", DDI_FM_EREPORT_CAPABLE |
448 			    DDI_FM_ACCCHK_CAPABLE | DDI_FM_DMACHK_CAPABLE
449 			    | DDI_FM_ERRCB_CAPABLE);
450 
451 			mrsas_fm_init(instance);
452 
453 			/* Initialize Interrupts */
454 			if ((ddi_dev_regsize(instance->dip,
455 			    REGISTER_SET_IO_2108, &reglength) != DDI_SUCCESS) ||
456 			    reglength < MINIMUM_MFI_MEM_SZ) {
457 				return (DDI_FAILURE);
458 			}
459 			if (reglength > DEFAULT_MFI_MEM_SZ) {
460 				reglength = DEFAULT_MFI_MEM_SZ;
461 				con_log(CL_DLEVEL1, (CE_NOTE,
462 				    "mr_sas: register length to map is "
463 				    "0x%lx bytes", reglength));
464 			}
465 			if (ddi_regs_map_setup(instance->dip,
466 			    REGISTER_SET_IO_2108, &instance->regmap, 0,
467 			    reglength, &endian_attr, &instance->regmap_handle)
468 			    != DDI_SUCCESS) {
469 				con_log(CL_ANN, (CE_NOTE,
470 				    "mr_sas: couldn't map control registers"));
471 				goto fail_attach;
472 			}
473 
474 			/*
475 			 * Disable Interrupt Now.
476 			 * Setup Software interrupt
477 			 */
478 			instance->func_ptr->disable_intr(instance);
479 
480 			if (ddi_prop_lookup_string(DDI_DEV_T_ANY, dip, 0,
481 			    "mrsas-enable-msi", &data) == DDI_SUCCESS) {
482 				if (strncmp(data, "no", 3) == 0) {
483 					msi_enable = 0;
484 					con_log(CL_ANN1, (CE_WARN,
485 					    "msi_enable = %d disabled",
486 					    msi_enable));
487 				}
488 				ddi_prop_free(data);
489 			}
490 
491 			con_log(CL_DLEVEL1, (CE_WARN, "msi_enable = %d",
492 			    msi_enable));
493 
494 			/* Check for all supported interrupt types */
495 			if (ddi_intr_get_supported_types(
496 			    dip, &intr_types) != DDI_SUCCESS) {
497 				con_log(CL_ANN, (CE_WARN,
498 				    "ddi_intr_get_supported_types() failed"));
499 				goto fail_attach;
500 			}
501 
502 			con_log(CL_DLEVEL1, (CE_NOTE,
503 			    "ddi_intr_get_supported_types() ret: 0x%x",
504 			    intr_types));
505 
506 			/* Initialize and Setup Interrupt handler */
507 			if (msi_enable && (intr_types & DDI_INTR_TYPE_MSIX)) {
508 				if (mrsas_add_intrs(instance,
509 				    DDI_INTR_TYPE_MSIX) != DDI_SUCCESS) {
510 					con_log(CL_ANN, (CE_WARN,
511 					    "MSIX interrupt query failed"));
512 					goto fail_attach;
513 				}
514 				instance->intr_type = DDI_INTR_TYPE_MSIX;
515 			} else if (msi_enable && (intr_types &
516 			    DDI_INTR_TYPE_MSI)) {
517 				if (mrsas_add_intrs(instance,
518 				    DDI_INTR_TYPE_MSI) != DDI_SUCCESS) {
519 					con_log(CL_ANN, (CE_WARN,
520 					    "MSI interrupt query failed"));
521 					goto fail_attach;
522 				}
523 				instance->intr_type = DDI_INTR_TYPE_MSI;
524 			} else if (intr_types & DDI_INTR_TYPE_FIXED) {
525 				msi_enable = 0;
526 				if (mrsas_add_intrs(instance,
527 				    DDI_INTR_TYPE_FIXED) != DDI_SUCCESS) {
528 					con_log(CL_ANN, (CE_WARN,
529 					    "FIXED interrupt query failed"));
530 					goto fail_attach;
531 				}
532 				instance->intr_type = DDI_INTR_TYPE_FIXED;
533 			} else {
534 				con_log(CL_ANN, (CE_WARN, "Device cannot "
535 				    "suppport either FIXED or MSI/X "
536 				    "interrupts"));
537 				goto fail_attach;
538 			}
539 
540 			added_isr_f = 1;
541 
542 			if (ddi_prop_lookup_string(DDI_DEV_T_ANY, dip, 0,
543 			    "mrsas-enable-ctio", &data) == DDI_SUCCESS) {
544 				if (strncmp(data, "no", 3) == 0) {
545 					ctio_enable = 0;
546 					con_log(CL_ANN1, (CE_WARN,
547 					    "ctio_enable = %d disabled",
548 					    ctio_enable));
549 				}
550 				ddi_prop_free(data);
551 			}
552 
553 			con_log(CL_DLEVEL1, (CE_WARN, "ctio_enable = %d",
554 			    ctio_enable));
555 
556 			/* setup the mfi based low level driver */
557 			if (init_mfi(instance) != DDI_SUCCESS) {
558 				con_log(CL_ANN, (CE_WARN, "mr_sas: "
559 				"could not initialize the low level driver"));
560 
561 				goto fail_attach;
562 			}
563 
564 			/* Initialize all Mutex */
565 			INIT_LIST_HEAD(&instance->completed_pool_list);
566 			mutex_init(&instance->completed_pool_mtx,
567 			    "completed_pool_mtx", MUTEX_DRIVER,
568 			    DDI_INTR_PRI(instance->intr_pri));
569 
570 			mutex_init(&instance->app_cmd_pool_mtx,
571 			    "app_cmd_pool_mtx",	MUTEX_DRIVER,
572 			    DDI_INTR_PRI(instance->intr_pri));
573 
574 			mutex_init(&instance->cmd_pend_mtx, "cmd_pend_mtx",
575 			    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
576 
577 			mutex_init(&instance->ocr_flags_mtx, "ocr_flags_mtx",
578 			    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
579 
580 			mutex_init(&instance->int_cmd_mtx, "int_cmd_mtx",
581 			    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
582 			cv_init(&instance->int_cmd_cv, NULL, CV_DRIVER, NULL);
583 
584 			mutex_init(&instance->cmd_pool_mtx, "cmd_pool_mtx",
585 			    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
586 
587 			instance->timeout_id = (timeout_id_t)-1;
588 
589 			/* Register our soft-isr for highlevel interrupts. */
590 			instance->isr_level = instance->intr_pri;
591 			if (instance->isr_level == HIGH_LEVEL_INTR) {
592 				if (ddi_add_softintr(dip, DDI_SOFTINT_HIGH,
593 				    &instance->soft_intr_id, NULL, NULL,
594 				    mrsas_softintr, (caddr_t)instance) !=
595 				    DDI_SUCCESS) {
596 					con_log(CL_ANN, (CE_WARN,
597 					    " Software ISR did not register"));
598 
599 					goto fail_attach;
600 				}
601 
602 				added_soft_isr_f = 1;
603 			}
604 
605 			/* Allocate a transport structure */
606 			tran = scsi_hba_tran_alloc(dip, SCSI_HBA_CANSLEEP);
607 
608 			if (tran == NULL) {
609 				con_log(CL_ANN, (CE_WARN,
610 				    "scsi_hba_tran_alloc failed"));
611 				goto fail_attach;
612 			}
613 
614 			tran_alloc_f = 1;
615 
616 			instance->tran = tran;
617 
618 			tran->tran_hba_private	= instance;
619 			tran->tran_tgt_init	= mrsas_tran_tgt_init;
620 			tran->tran_tgt_probe	= scsi_hba_probe;
621 			tran->tran_tgt_free	= mrsas_tran_tgt_free;
622 			tran->tran_init_pkt	= mrsas_tran_init_pkt;
623 			tran->tran_start	= mrsas_tran_start;
624 			tran->tran_abort	= mrsas_tran_abort;
625 			tran->tran_reset	= mrsas_tran_reset;
626 			tran->tran_getcap	= mrsas_tran_getcap;
627 			tran->tran_setcap	= mrsas_tran_setcap;
628 			tran->tran_destroy_pkt	= mrsas_tran_destroy_pkt;
629 			tran->tran_dmafree	= mrsas_tran_dmafree;
630 			tran->tran_sync_pkt	= mrsas_tran_sync_pkt;
631 			tran->tran_bus_config	= mrsas_tran_bus_config;
632 
633 			if (mrsas_relaxed_ordering)
634 				mrsas_generic_dma_attr.dma_attr_flags |=
635 				    DDI_DMA_RELAXED_ORDERING;
636 
637 
638 			tran_dma_attr = mrsas_generic_dma_attr;
639 			tran_dma_attr.dma_attr_sgllen = instance->max_num_sge;
640 
641 			/* Attach this instance of the hba */
642 			if (scsi_hba_attach_setup(dip, &tran_dma_attr, tran, 0)
643 			    != DDI_SUCCESS) {
644 				con_log(CL_ANN, (CE_WARN,
645 				    "scsi_hba_attach failed"));
646 
647 				goto fail_attach;
648 			}
649 
650 			/* create devctl node for cfgadm command */
651 			if (ddi_create_minor_node(dip, "devctl",
652 			    S_IFCHR, INST2DEVCTL(instance_no),
653 			    DDI_NT_SCSI_NEXUS, 0) == DDI_FAILURE) {
654 				con_log(CL_ANN, (CE_WARN,
655 				    "mr_sas: failed to create devctl node."));
656 
657 				goto fail_attach;
658 			}
659 
660 			create_devctl_node_f = 1;
661 
662 			/* create scsi node for cfgadm command */
663 			if (ddi_create_minor_node(dip, "scsi", S_IFCHR,
664 			    INST2SCSI(instance_no),
665 			    DDI_NT_SCSI_ATTACHMENT_POINT, 0) ==
666 			    DDI_FAILURE) {
667 				con_log(CL_ANN, (CE_WARN,
668 				    "mr_sas: failed to create scsi node."));
669 
670 				goto fail_attach;
671 			}
672 
673 			create_scsi_node_f = 1;
674 
675 			(void) sprintf(instance->iocnode, "%d:lsirdctl",
676 			    instance_no);
677 
678 			/*
679 			 * Create a node for applications
680 			 * for issuing ioctl to the driver.
681 			 */
682 			if (ddi_create_minor_node(dip, instance->iocnode,
683 			    S_IFCHR, INST2LSIRDCTL(instance_no),
684 			    DDI_PSEUDO, 0) == DDI_FAILURE) {
685 				con_log(CL_ANN, (CE_WARN,
686 				    "mr_sas: failed to create ioctl node."));
687 
688 				goto fail_attach;
689 			}
690 
691 			create_ioc_node_f = 1;
692 
693 			/* Create a taskq to handle dr events */
694 			if ((instance->taskq = ddi_taskq_create(dip,
695 			    "mrsas_dr_taskq", 1,
696 			    TASKQ_DEFAULTPRI, 0)) == NULL) {
697 				con_log(CL_ANN, (CE_WARN,
698 				    "mr_sas: failed to create taskq "));
699 				instance->taskq = NULL;
700 				goto fail_attach;
701 			}
702 
703 			/* enable interrupt */
704 			instance->func_ptr->enable_intr(instance);
705 
706 			/* initiate AEN */
707 			if (start_mfi_aen(instance)) {
708 				con_log(CL_ANN, (CE_WARN,
709 				    "mr_sas: failed to initiate AEN."));
710 				goto fail_initiate_aen;
711 			}
712 
713 			con_log(CL_DLEVEL1, (CE_NOTE,
714 			    "AEN started for instance %d.", instance_no));
715 
716 			/* Finally! We are on the air.  */
717 			ddi_report_dev(dip);
718 
719 			if (mrsas_check_acc_handle(instance->regmap_handle) !=
720 			    DDI_SUCCESS) {
721 				goto fail_attach;
722 			}
723 			if (mrsas_check_acc_handle(instance->pci_handle) !=
724 			    DDI_SUCCESS) {
725 				goto fail_attach;
726 			}
727 			instance->mr_ld_list =
728 			    kmem_zalloc(MRDRV_MAX_LD * sizeof (struct mrsas_ld),
729 			    KM_SLEEP);
730 			break;
731 		case DDI_PM_RESUME:
732 			con_log(CL_ANN, (CE_NOTE,
733 			    "mr_sas: DDI_PM_RESUME"));
734 			break;
735 		case DDI_RESUME:
736 			con_log(CL_ANN, (CE_NOTE,
737 			    "mr_sas: DDI_RESUME"));
738 			break;
739 		default:
740 			con_log(CL_ANN, (CE_WARN,
741 			    "mr_sas: invalid attach cmd=%x", cmd));
742 			return (DDI_FAILURE);
743 	}
744 
745 	return (DDI_SUCCESS);
746 
747 fail_initiate_aen:
748 fail_attach:
749 	if (create_devctl_node_f) {
750 		ddi_remove_minor_node(dip, "devctl");
751 	}
752 
753 	if (create_scsi_node_f) {
754 		ddi_remove_minor_node(dip, "scsi");
755 	}
756 
757 	if (create_ioc_node_f) {
758 		ddi_remove_minor_node(dip, instance->iocnode);
759 	}
760 
761 	if (tran_alloc_f) {
762 		scsi_hba_tran_free(tran);
763 	}
764 
765 
766 	if (added_soft_isr_f) {
767 		ddi_remove_softintr(instance->soft_intr_id);
768 	}
769 
770 	if (added_isr_f) {
771 		mrsas_rem_intrs(instance);
772 	}
773 
774 	if (instance && instance->taskq) {
775 		ddi_taskq_destroy(instance->taskq);
776 	}
777 
778 	mrsas_fm_ereport(instance, DDI_FM_DEVICE_NO_RESPONSE);
779 	ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
780 
781 	mrsas_fm_fini(instance);
782 
783 	pci_config_teardown(&instance->pci_handle);
784 
785 	ddi_soft_state_free(mrsas_state, instance_no);
786 
787 	con_log(CL_ANN, (CE_NOTE,
788 	    "mr_sas: return failure from mrsas_attach"));
789 
790 	return (DDI_FAILURE);
791 }
792 
793 /*ARGSUSED*/
794 static int
795 mrsas_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd,  void *arg, void **resultp)
796 {
797 	int	rval;
798 	int	mrsas_minor = getminor((dev_t)arg);
799 
800 	struct mrsas_instance	*instance;
801 
802 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
803 
804 	switch (cmd) {
805 		case DDI_INFO_DEVT2DEVINFO:
806 			instance = (struct mrsas_instance *)
807 			    ddi_get_soft_state(mrsas_state,
808 			    MINOR2INST(mrsas_minor));
809 
810 			if (instance == NULL) {
811 				*resultp = NULL;
812 				rval = DDI_FAILURE;
813 			} else {
814 				*resultp = instance->dip;
815 				rval = DDI_SUCCESS;
816 			}
817 			break;
818 		case DDI_INFO_DEVT2INSTANCE:
819 			*resultp = (void *)(intptr_t)
820 			    (MINOR2INST(getminor((dev_t)arg)));
821 			rval = DDI_SUCCESS;
822 			break;
823 		default:
824 			*resultp = NULL;
825 			rval = DDI_FAILURE;
826 	}
827 
828 	return (rval);
829 }
830 
831 static int
832 mrsas_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
833 {
834 	int	instance_no;
835 
836 	struct mrsas_instance	*instance;
837 
838 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
839 
840 	/* CONSTCOND */
841 	ASSERT(NO_COMPETING_THREADS);
842 
843 	instance_no = ddi_get_instance(dip);
844 
845 	instance = (struct mrsas_instance *)ddi_get_soft_state(mrsas_state,
846 	    instance_no);
847 
848 	if (!instance) {
849 		con_log(CL_ANN, (CE_WARN,
850 		    "mr_sas:%d could not get instance in detach",
851 		    instance_no));
852 
853 		return (DDI_FAILURE);
854 	}
855 
856 	con_log(CL_ANN, (CE_NOTE,
857 	    "mr_sas%d: detaching device 0x%4x:0x%4x:0x%4x:0x%4x",
858 	    instance_no, instance->vendor_id, instance->device_id,
859 	    instance->subsysvid, instance->subsysid));
860 
861 	switch (cmd) {
862 	case DDI_DETACH:
863 		con_log(CL_ANN, (CE_NOTE,
864 		    "mrsas_detach: DDI_DETACH"));
865 
866 		if (scsi_hba_detach(dip) != DDI_SUCCESS) {
867 			con_log(CL_ANN, (CE_WARN,
868 			    "mr_sas:%d failed to detach",
869 			    instance_no));
870 
871 			return (DDI_FAILURE);
872 		}
873 
874 		scsi_hba_tran_free(instance->tran);
875 
876 		flush_cache(instance);
877 
878 		if (abort_aen_cmd(instance, instance->aen_cmd)) {
879 			con_log(CL_ANN, (CE_WARN, "mrsas_detach: "
880 			    "failed to abort prevous AEN command"));
881 
882 			return (DDI_FAILURE);
883 		}
884 
885 		instance->func_ptr->disable_intr(instance);
886 
887 		if (instance->isr_level == HIGH_LEVEL_INTR) {
888 			ddi_remove_softintr(instance->soft_intr_id);
889 		}
890 
891 		mrsas_rem_intrs(instance);
892 
893 		if (instance->taskq) {
894 			ddi_taskq_destroy(instance->taskq);
895 		}
896 		kmem_free(instance->mr_ld_list, MRDRV_MAX_LD
897 		    * sizeof (struct mrsas_ld));
898 		free_space_for_mfi(instance);
899 
900 		mrsas_fm_fini(instance);
901 
902 		pci_config_teardown(&instance->pci_handle);
903 
904 		kmem_free(instance->func_ptr,
905 		    sizeof (struct mrsas_func_ptr));
906 
907 		if (instance->timeout_id != (timeout_id_t)-1) {
908 			(void) untimeout(instance->timeout_id);
909 			instance->timeout_id = (timeout_id_t)-1;
910 		}
911 		ddi_soft_state_free(mrsas_state, instance_no);
912 		break;
913 	case DDI_PM_SUSPEND:
914 		con_log(CL_ANN, (CE_NOTE,
915 		    "mrsas_detach: DDI_PM_SUSPEND"));
916 
917 		break;
918 	case DDI_SUSPEND:
919 		con_log(CL_ANN, (CE_NOTE,
920 		    "mrsas_detach: DDI_SUSPEND"));
921 
922 		break;
923 	default:
924 		con_log(CL_ANN, (CE_WARN,
925 		    "invalid detach command:0x%x", cmd));
926 		return (DDI_FAILURE);
927 	}
928 
929 	return (DDI_SUCCESS);
930 }
931 
932 /*
933  * ************************************************************************** *
934  *                                                                            *
935  *             common entry points - for character driver types               *
936  *                                                                            *
937  * ************************************************************************** *
938  */
939 static  int
940 mrsas_open(dev_t *dev, int openflags, int otyp, cred_t *credp)
941 {
942 	int	rval = 0;
943 
944 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
945 
946 	/* Check root permissions */
947 	if (drv_priv(credp) != 0) {
948 		con_log(CL_ANN, (CE_WARN,
949 		    "mr_sas: Non-root ioctl access denied!"));
950 		return (EPERM);
951 	}
952 
953 	/* Verify we are being opened as a character device */
954 	if (otyp != OTYP_CHR) {
955 		con_log(CL_ANN, (CE_WARN,
956 		    "mr_sas: ioctl node must be a char node"));
957 		return (EINVAL);
958 	}
959 
960 	if (ddi_get_soft_state(mrsas_state, MINOR2INST(getminor(*dev)))
961 	    == NULL) {
962 		return (ENXIO);
963 	}
964 
965 	if (scsi_hba_open) {
966 		rval = scsi_hba_open(dev, openflags, otyp, credp);
967 	}
968 
969 	return (rval);
970 }
971 
972 static  int
973 mrsas_close(dev_t dev, int openflags, int otyp, cred_t *credp)
974 {
975 	int	rval = 0;
976 
977 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
978 
979 	/* no need for locks! */
980 
981 	if (scsi_hba_close) {
982 		rval = scsi_hba_close(dev, openflags, otyp, credp);
983 	}
984 
985 	return (rval);
986 }
987 
988 static int
989 mrsas_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *credp,
990     int *rvalp)
991 {
992 	int	rval = 0;
993 
994 	struct mrsas_instance	*instance;
995 	struct mrsas_ioctl	*ioctl;
996 	struct mrsas_aen	aen;
997 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
998 
999 	instance = ddi_get_soft_state(mrsas_state, MINOR2INST(getminor(dev)));
1000 
1001 	if (instance == NULL) {
1002 		/* invalid minor number */
1003 		con_log(CL_ANN, (CE_WARN, "mr_sas: adapter not found."));
1004 		return (ENXIO);
1005 	}
1006 
1007 	ioctl = (struct mrsas_ioctl *)kmem_zalloc(sizeof (struct mrsas_ioctl),
1008 	    KM_SLEEP);
1009 	ASSERT(ioctl);
1010 
1011 	switch ((uint_t)cmd) {
1012 		case MRSAS_IOCTL_FIRMWARE:
1013 			if (ddi_copyin((void *)arg, ioctl,
1014 			    sizeof (struct mrsas_ioctl), mode)) {
1015 				con_log(CL_ANN, (CE_WARN, "mrsas_ioctl: "
1016 				    "ERROR IOCTL copyin"));
1017 				kmem_free(ioctl, sizeof (struct mrsas_ioctl));
1018 				return (EFAULT);
1019 			}
1020 
1021 			if (ioctl->control_code == MRSAS_DRIVER_IOCTL_COMMON) {
1022 				rval = handle_drv_ioctl(instance, ioctl, mode);
1023 			} else {
1024 				rval = handle_mfi_ioctl(instance, ioctl, mode);
1025 			}
1026 
1027 			if (ddi_copyout((void *)ioctl, (void *)arg,
1028 			    (sizeof (struct mrsas_ioctl) - 1), mode)) {
1029 				con_log(CL_ANN, (CE_WARN,
1030 				    "mrsas_ioctl: copy_to_user failed"));
1031 				rval = 1;
1032 			}
1033 
1034 			break;
1035 		case MRSAS_IOCTL_AEN:
1036 			if (ddi_copyin((void *) arg, &aen,
1037 			    sizeof (struct mrsas_aen), mode)) {
1038 				con_log(CL_ANN, (CE_WARN,
1039 				    "mrsas_ioctl: ERROR AEN copyin"));
1040 				kmem_free(ioctl, sizeof (struct mrsas_ioctl));
1041 				return (EFAULT);
1042 			}
1043 
1044 			rval = handle_mfi_aen(instance, &aen);
1045 
1046 			if (ddi_copyout((void *) &aen, (void *)arg,
1047 			    sizeof (struct mrsas_aen), mode)) {
1048 				con_log(CL_ANN, (CE_WARN,
1049 				    "mrsas_ioctl: copy_to_user failed"));
1050 				rval = 1;
1051 			}
1052 
1053 			break;
1054 		default:
1055 			rval = scsi_hba_ioctl(dev, cmd, arg,
1056 			    mode, credp, rvalp);
1057 
1058 			con_log(CL_DLEVEL1, (CE_NOTE, "mrsas_ioctl: "
1059 			    "scsi_hba_ioctl called, ret = %x.", rval));
1060 	}
1061 
1062 	kmem_free(ioctl, sizeof (struct mrsas_ioctl));
1063 	return (rval);
1064 }
1065 
1066 /*
1067  * ************************************************************************** *
1068  *                                                                            *
1069  *               common entry points - for block driver types                 *
1070  *                                                                            *
1071  * ************************************************************************** *
1072  */
1073 #ifdef	__sparc
1074 /*ARGSUSED*/
1075 static int
1076 mrsas_reset(dev_info_t *dip, ddi_reset_cmd_t cmd)
1077 {
1078 	int	instance_no;
1079 
1080 	struct mrsas_instance	*instance;
1081 
1082 	instance_no = ddi_get_instance(dip);
1083 	instance = (struct mrsas_instance *)ddi_get_soft_state
1084 	    (mrsas_state, instance_no);
1085 
1086 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1087 
1088 	if (!instance) {
1089 		con_log(CL_ANN, (CE_WARN, "mr_sas:%d could not get adapter "
1090 		    "in reset", instance_no));
1091 		return (DDI_FAILURE);
1092 	}
1093 
1094 	instance->func_ptr->disable_intr(instance);
1095 
1096 	con_log(CL_ANN1, (CE_NOTE, "flushing cache for instance %d",
1097 	    instance_no));
1098 
1099 	flush_cache(instance);
1100 
1101 	return (DDI_SUCCESS);
1102 }
1103 #else /* __sparc */
1104 /*ARGSUSED*/
1105 static int
1106 mrsas_quiesce(dev_info_t *dip)
1107 {
1108 	int	instance_no;
1109 
1110 	struct mrsas_instance	*instance;
1111 
1112 	instance_no = ddi_get_instance(dip);
1113 	instance = (struct mrsas_instance *)ddi_get_soft_state
1114 	    (mrsas_state, instance_no);
1115 
1116 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1117 
1118 	if (!instance) {
1119 		con_log(CL_ANN1, (CE_WARN, "mr_sas:%d could not get adapter "
1120 		    "in quiesce", instance_no));
1121 		return (DDI_FAILURE);
1122 	}
1123 	if (instance->deadadapter || instance->adapterresetinprogress) {
1124 		con_log(CL_ANN1, (CE_WARN, "mr_sas:%d adapter is not in "
1125 		    "healthy state", instance_no));
1126 		return (DDI_FAILURE);
1127 	}
1128 
1129 	if (abort_aen_cmd(instance, instance->aen_cmd)) {
1130 		con_log(CL_ANN1, (CE_WARN, "mrsas_quiesce: "
1131 		    "failed to abort prevous AEN command QUIESCE"));
1132 	}
1133 
1134 	instance->func_ptr->disable_intr(instance);
1135 
1136 	con_log(CL_ANN1, (CE_NOTE, "flushing cache for instance %d",
1137 	    instance_no));
1138 
1139 	flush_cache(instance);
1140 
1141 	if (wait_for_outstanding(instance)) {
1142 		return (DDI_FAILURE);
1143 	}
1144 	return (DDI_SUCCESS);
1145 }
1146 #endif	/* __sparc */
1147 
1148 /*
1149  * ************************************************************************** *
1150  *                                                                            *
1151  *                          entry points (SCSI HBA)                           *
1152  *                                                                            *
1153  * ************************************************************************** *
1154  */
1155 /*ARGSUSED*/
1156 static int
1157 mrsas_tran_tgt_init(dev_info_t *hba_dip, dev_info_t *tgt_dip,
1158 		scsi_hba_tran_t *tran, struct scsi_device *sd)
1159 {
1160 	struct mrsas_instance *instance;
1161 	uint16_t tgt = sd->sd_address.a_target;
1162 	uint8_t lun = sd->sd_address.a_lun;
1163 
1164 	con_log(CL_ANN1, (CE_NOTE, "mrsas_tgt_init target %d lun %d",
1165 	    tgt, lun));
1166 
1167 	instance = ADDR2MR(&sd->sd_address);
1168 
1169 	if (ndi_dev_is_persistent_node(tgt_dip) == 0) {
1170 		(void) ndi_merge_node(tgt_dip, mrsas_name_node);
1171 		ddi_set_name_addr(tgt_dip, NULL);
1172 
1173 		con_log(CL_ANN1, (CE_NOTE, "mrsas_tgt_init in "
1174 		    "ndi_dev_is_persistent_node DDI_FAILURE t = %d l = %d",
1175 		    tgt, lun));
1176 		return (DDI_FAILURE);
1177 	}
1178 
1179 	con_log(CL_ANN1, (CE_NOTE, "mrsas_tgt_init dev_dip %p tgt_dip %p",
1180 	    (void *)instance->mr_ld_list[tgt].dip, (void *)tgt_dip));
1181 
1182 	if (tgt < MRDRV_MAX_LD && lun == 0) {
1183 		if (instance->mr_ld_list[tgt].dip == NULL &&
1184 		    strcmp(ddi_driver_name(sd->sd_dev), "sd") == 0) {
1185 			instance->mr_ld_list[tgt].dip = tgt_dip;
1186 			instance->mr_ld_list[tgt].lun_type = MRSAS_LD_LUN;
1187 		}
1188 	}
1189 	return (DDI_SUCCESS);
1190 }
1191 
1192 /*ARGSUSED*/
1193 static void
1194 mrsas_tran_tgt_free(dev_info_t *hba_dip, dev_info_t *tgt_dip,
1195     scsi_hba_tran_t *hba_tran, struct scsi_device *sd)
1196 {
1197 	struct mrsas_instance *instance;
1198 	int tgt = sd->sd_address.a_target;
1199 	int lun = sd->sd_address.a_lun;
1200 
1201 	instance = ADDR2MR(&sd->sd_address);
1202 
1203 	con_log(CL_ANN1, (CE_NOTE, "tgt_free t = %d l = %d", tgt, lun));
1204 
1205 	if (tgt < MRDRV_MAX_LD && lun == 0) {
1206 		if (instance->mr_ld_list[tgt].dip == tgt_dip) {
1207 			instance->mr_ld_list[tgt].dip = NULL;
1208 		}
1209 	}
1210 }
1211 
1212 static dev_info_t *
1213 mrsas_find_child(struct mrsas_instance *instance, uint16_t tgt, uint8_t lun)
1214 {
1215 	dev_info_t *child = NULL;
1216 	char addr[SCSI_MAXNAMELEN];
1217 	char tmp[MAXNAMELEN];
1218 
1219 	(void) sprintf(addr, "%x,%x", tgt, lun);
1220 	for (child = ddi_get_child(instance->dip); child;
1221 	    child = ddi_get_next_sibling(child)) {
1222 
1223 		if (mrsas_name_node(child, tmp, MAXNAMELEN) !=
1224 		    DDI_SUCCESS) {
1225 			continue;
1226 		}
1227 
1228 		if (strcmp(addr, tmp) == 0) {
1229 			break;
1230 		}
1231 	}
1232 	con_log(CL_ANN1, (CE_NOTE, "mrsas_find_child: return child = %p",
1233 	    (void *)child));
1234 	return (child);
1235 }
1236 
1237 static int
1238 mrsas_name_node(dev_info_t *dip, char *name, int len)
1239 {
1240 	int tgt, lun;
1241 
1242 	tgt = ddi_prop_get_int(DDI_DEV_T_ANY, dip,
1243 	    DDI_PROP_DONTPASS, "target", -1);
1244 	con_log(CL_ANN1, (CE_NOTE,
1245 	    "mrsas_name_node: dip %p tgt %d", (void *)dip, tgt));
1246 	if (tgt == -1) {
1247 		return (DDI_FAILURE);
1248 	}
1249 	lun = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
1250 	    "lun", -1);
1251 	con_log(CL_ANN1,
1252 	    (CE_NOTE, "mrsas_name_node: tgt %d lun %d", tgt, lun));
1253 	if (lun == -1) {
1254 		return (DDI_FAILURE);
1255 	}
1256 	(void) snprintf(name, len, "%x,%x", tgt, lun);
1257 	return (DDI_SUCCESS);
1258 }
1259 
1260 static struct scsi_pkt *
1261 mrsas_tran_init_pkt(struct scsi_address *ap, register struct scsi_pkt *pkt,
1262 	struct buf *bp, int cmdlen, int statuslen, int tgtlen,
1263 	int flags, int (*callback)(), caddr_t arg)
1264 {
1265 	struct scsa_cmd	*acmd;
1266 	struct mrsas_instance	*instance;
1267 	struct scsi_pkt	*new_pkt;
1268 
1269 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1270 
1271 	instance = ADDR2MR(ap);
1272 
1273 	/* step #1 : pkt allocation */
1274 	if (pkt == NULL) {
1275 		pkt = scsi_hba_pkt_alloc(instance->dip, ap, cmdlen, statuslen,
1276 		    tgtlen, sizeof (struct scsa_cmd), callback, arg);
1277 		if (pkt == NULL) {
1278 			return (NULL);
1279 		}
1280 
1281 		acmd = PKT2CMD(pkt);
1282 
1283 		/*
1284 		 * Initialize the new pkt - we redundantly initialize
1285 		 * all the fields for illustrative purposes.
1286 		 */
1287 		acmd->cmd_pkt		= pkt;
1288 		acmd->cmd_flags		= 0;
1289 		acmd->cmd_scblen	= statuslen;
1290 		acmd->cmd_cdblen	= cmdlen;
1291 		acmd->cmd_dmahandle	= NULL;
1292 		acmd->cmd_ncookies	= 0;
1293 		acmd->cmd_cookie	= 0;
1294 		acmd->cmd_cookiecnt	= 0;
1295 		acmd->cmd_nwin		= 0;
1296 
1297 		pkt->pkt_address	= *ap;
1298 		pkt->pkt_comp		= (void (*)())NULL;
1299 		pkt->pkt_flags		= 0;
1300 		pkt->pkt_time		= 0;
1301 		pkt->pkt_resid		= 0;
1302 		pkt->pkt_state		= 0;
1303 		pkt->pkt_statistics	= 0;
1304 		pkt->pkt_reason		= 0;
1305 		new_pkt			= pkt;
1306 	} else {
1307 		acmd = PKT2CMD(pkt);
1308 		new_pkt = NULL;
1309 	}
1310 
1311 	/* step #2 : dma allocation/move */
1312 	if (bp && bp->b_bcount != 0) {
1313 		if (acmd->cmd_dmahandle == NULL) {
1314 			if (mrsas_dma_alloc(instance, pkt, bp, flags,
1315 			    callback) == DDI_FAILURE) {
1316 				if (new_pkt) {
1317 					scsi_hba_pkt_free(ap, new_pkt);
1318 				}
1319 				return ((struct scsi_pkt *)NULL);
1320 			}
1321 		} else {
1322 			if (mrsas_dma_move(instance, pkt, bp) == DDI_FAILURE) {
1323 				return ((struct scsi_pkt *)NULL);
1324 			}
1325 		}
1326 	}
1327 
1328 	return (pkt);
1329 }
1330 
1331 static int
1332 mrsas_tran_start(struct scsi_address *ap, register struct scsi_pkt *pkt)
1333 {
1334 	uchar_t 	cmd_done = 0;
1335 
1336 	struct mrsas_instance	*instance = ADDR2MR(ap);
1337 	struct mrsas_cmd	*cmd;
1338 
1339 	if (instance->deadadapter == 1) {
1340 		con_log(CL_ANN1, (CE_WARN,
1341 		    "mrsas_tran_start: return TRAN_FATAL_ERROR "
1342 		    "for IO, as the HBA doesnt take any more IOs"));
1343 		if (pkt) {
1344 			pkt->pkt_reason		= CMD_DEV_GONE;
1345 			pkt->pkt_statistics	= STAT_DISCON;
1346 		}
1347 		return (TRAN_FATAL_ERROR);
1348 	}
1349 
1350 	if (instance->adapterresetinprogress) {
1351 		con_log(CL_ANN1, (CE_NOTE, "Reset flag set, "
1352 		    "returning mfi_pkt and setting TRAN_BUSY\n"));
1353 		return (TRAN_BUSY);
1354 	}
1355 
1356 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d:SCSI CDB[0]=0x%x time:%x",
1357 	    __func__, __LINE__, pkt->pkt_cdbp[0], pkt->pkt_time));
1358 
1359 	pkt->pkt_reason	= CMD_CMPLT;
1360 	*pkt->pkt_scbp = STATUS_GOOD; /* clear arq scsi_status */
1361 
1362 	cmd = build_cmd(instance, ap, pkt, &cmd_done);
1363 
1364 	/*
1365 	 * Check if the command is already completed by the mrsas_build_cmd()
1366 	 * routine. In which case the busy_flag would be clear and scb will be
1367 	 * NULL and appropriate reason provided in pkt_reason field
1368 	 */
1369 	if (cmd_done) {
1370 		pkt->pkt_reason = CMD_CMPLT;
1371 		pkt->pkt_scbp[0] = STATUS_GOOD;
1372 		pkt->pkt_state |= STATE_GOT_BUS | STATE_GOT_TARGET
1373 		    | STATE_SENT_CMD;
1374 		if (((pkt->pkt_flags & FLAG_NOINTR) == 0) && pkt->pkt_comp) {
1375 			(*pkt->pkt_comp)(pkt);
1376 		}
1377 
1378 		return (TRAN_ACCEPT);
1379 	}
1380 
1381 	if (cmd == NULL) {
1382 		return (TRAN_BUSY);
1383 	}
1384 
1385 	if ((pkt->pkt_flags & FLAG_NOINTR) == 0) {
1386 		if (instance->fw_outstanding > instance->max_fw_cmds) {
1387 			con_log(CL_ANN, (CE_CONT, "mr_sas:Firmware busy"));
1388 			DTRACE_PROBE2(start_tran_err,
1389 			    uint16_t, instance->fw_outstanding,
1390 			    uint16_t, instance->max_fw_cmds);
1391 			return_mfi_pkt(instance, cmd);
1392 			return (TRAN_BUSY);
1393 		}
1394 
1395 		/* Synchronize the Cmd frame for the controller */
1396 		(void) ddi_dma_sync(cmd->frame_dma_obj.dma_handle, 0, 0,
1397 		    DDI_DMA_SYNC_FORDEV);
1398 		con_log(CL_ANN1, (CE_NOTE, "Push SCSI CDB[0]=0x%x"
1399 		    "cmd->index:%x\n", pkt->pkt_cdbp[0], cmd->index));
1400 		instance->func_ptr->issue_cmd(cmd, instance);
1401 
1402 	} else {
1403 		struct mrsas_header *hdr = &cmd->frame->hdr;
1404 
1405 		cmd->sync_cmd = MRSAS_TRUE;
1406 
1407 		instance->func_ptr-> issue_cmd_in_poll_mode(instance, cmd);
1408 
1409 		pkt->pkt_reason		= CMD_CMPLT;
1410 		pkt->pkt_statistics	= 0;
1411 		pkt->pkt_state |= STATE_XFERRED_DATA | STATE_GOT_STATUS;
1412 
1413 		switch (ddi_get8(cmd->frame_dma_obj.acc_handle,
1414 		    &hdr->cmd_status)) {
1415 		case MFI_STAT_OK:
1416 			pkt->pkt_scbp[0] = STATUS_GOOD;
1417 			break;
1418 
1419 		case MFI_STAT_SCSI_DONE_WITH_ERROR:
1420 
1421 			pkt->pkt_reason	= CMD_CMPLT;
1422 			pkt->pkt_statistics = 0;
1423 
1424 			((struct scsi_status *)pkt->pkt_scbp)->sts_chk = 1;
1425 			break;
1426 
1427 		case MFI_STAT_DEVICE_NOT_FOUND:
1428 			pkt->pkt_reason		= CMD_DEV_GONE;
1429 			pkt->pkt_statistics	= STAT_DISCON;
1430 			break;
1431 
1432 		default:
1433 			((struct scsi_status *)pkt->pkt_scbp)->sts_busy = 1;
1434 		}
1435 
1436 		(void) mrsas_common_check(instance, cmd);
1437 		DTRACE_PROBE2(start_nointr_done, uint8_t, hdr->cmd,
1438 		    uint8_t, hdr->cmd_status);
1439 		return_mfi_pkt(instance, cmd);
1440 
1441 		if (pkt->pkt_comp) {
1442 			(*pkt->pkt_comp)(pkt);
1443 		}
1444 
1445 	}
1446 
1447 	return (TRAN_ACCEPT);
1448 }
1449 
1450 /*ARGSUSED*/
1451 static int
1452 mrsas_tran_abort(struct scsi_address *ap, struct scsi_pkt *pkt)
1453 {
1454 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1455 
1456 	/* abort command not supported by H/W */
1457 
1458 	return (DDI_FAILURE);
1459 }
1460 
1461 /*ARGSUSED*/
1462 static int
1463 mrsas_tran_reset(struct scsi_address *ap, int level)
1464 {
1465 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1466 
1467 	/* reset command not supported by H/W */
1468 
1469 	return (DDI_FAILURE);
1470 
1471 }
1472 
1473 /*ARGSUSED*/
1474 static int
1475 mrsas_tran_getcap(struct scsi_address *ap, char *cap, int whom)
1476 {
1477 	int	rval = 0;
1478 
1479 	struct mrsas_instance	*instance = ADDR2MR(ap);
1480 
1481 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1482 
1483 	/* we do allow inquiring about capabilities for other targets */
1484 	if (cap == NULL) {
1485 		return (-1);
1486 	}
1487 
1488 	switch (scsi_hba_lookup_capstr(cap)) {
1489 	case SCSI_CAP_DMA_MAX:
1490 		/* Limit to 16MB max transfer */
1491 		rval = mrsas_max_cap_maxxfer;
1492 		break;
1493 	case SCSI_CAP_MSG_OUT:
1494 		rval = 1;
1495 		break;
1496 	case SCSI_CAP_DISCONNECT:
1497 		rval = 0;
1498 		break;
1499 	case SCSI_CAP_SYNCHRONOUS:
1500 		rval = 0;
1501 		break;
1502 	case SCSI_CAP_WIDE_XFER:
1503 		rval = 1;
1504 		break;
1505 	case SCSI_CAP_TAGGED_QING:
1506 		rval = 1;
1507 		break;
1508 	case SCSI_CAP_UNTAGGED_QING:
1509 		rval = 1;
1510 		break;
1511 	case SCSI_CAP_PARITY:
1512 		rval = 1;
1513 		break;
1514 	case SCSI_CAP_INITIATOR_ID:
1515 		rval = instance->init_id;
1516 		break;
1517 	case SCSI_CAP_ARQ:
1518 		rval = 1;
1519 		break;
1520 	case SCSI_CAP_LINKED_CMDS:
1521 		rval = 0;
1522 		break;
1523 	case SCSI_CAP_RESET_NOTIFICATION:
1524 		rval = 1;
1525 		break;
1526 	case SCSI_CAP_GEOMETRY:
1527 		rval = -1;
1528 
1529 		break;
1530 	default:
1531 		con_log(CL_DLEVEL2, (CE_NOTE, "Default cap coming 0x%x",
1532 		    scsi_hba_lookup_capstr(cap)));
1533 		rval = -1;
1534 		break;
1535 	}
1536 
1537 	return (rval);
1538 }
1539 
1540 /*ARGSUSED*/
1541 static int
1542 mrsas_tran_setcap(struct scsi_address *ap, char *cap, int value, int whom)
1543 {
1544 	int		rval = 1;
1545 
1546 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1547 
1548 	/* We don't allow setting capabilities for other targets */
1549 	if (cap == NULL || whom == 0) {
1550 		return (-1);
1551 	}
1552 
1553 	switch (scsi_hba_lookup_capstr(cap)) {
1554 		case SCSI_CAP_DMA_MAX:
1555 		case SCSI_CAP_MSG_OUT:
1556 		case SCSI_CAP_PARITY:
1557 		case SCSI_CAP_LINKED_CMDS:
1558 		case SCSI_CAP_RESET_NOTIFICATION:
1559 		case SCSI_CAP_DISCONNECT:
1560 		case SCSI_CAP_SYNCHRONOUS:
1561 		case SCSI_CAP_UNTAGGED_QING:
1562 		case SCSI_CAP_WIDE_XFER:
1563 		case SCSI_CAP_INITIATOR_ID:
1564 		case SCSI_CAP_ARQ:
1565 			/*
1566 			 * None of these are settable via
1567 			 * the capability interface.
1568 			 */
1569 			break;
1570 		case SCSI_CAP_TAGGED_QING:
1571 			rval = 1;
1572 			break;
1573 		case SCSI_CAP_SECTOR_SIZE:
1574 			rval = 1;
1575 			break;
1576 
1577 		case SCSI_CAP_TOTAL_SECTORS:
1578 			rval = 1;
1579 			break;
1580 		default:
1581 			rval = -1;
1582 			break;
1583 	}
1584 
1585 	return (rval);
1586 }
1587 
1588 static void
1589 mrsas_tran_destroy_pkt(struct scsi_address *ap, struct scsi_pkt *pkt)
1590 {
1591 	struct scsa_cmd *acmd = PKT2CMD(pkt);
1592 
1593 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1594 
1595 	if (acmd->cmd_flags & CFLAG_DMAVALID) {
1596 		acmd->cmd_flags &= ~CFLAG_DMAVALID;
1597 
1598 		(void) ddi_dma_unbind_handle(acmd->cmd_dmahandle);
1599 
1600 		ddi_dma_free_handle(&acmd->cmd_dmahandle);
1601 
1602 		acmd->cmd_dmahandle = NULL;
1603 	}
1604 
1605 	/* free the pkt */
1606 	scsi_hba_pkt_free(ap, pkt);
1607 }
1608 
1609 /*ARGSUSED*/
1610 static void
1611 mrsas_tran_dmafree(struct scsi_address *ap, struct scsi_pkt *pkt)
1612 {
1613 	register struct scsa_cmd *acmd = PKT2CMD(pkt);
1614 
1615 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1616 
1617 	if (acmd->cmd_flags & CFLAG_DMAVALID) {
1618 		acmd->cmd_flags &= ~CFLAG_DMAVALID;
1619 
1620 		(void) ddi_dma_unbind_handle(acmd->cmd_dmahandle);
1621 
1622 		ddi_dma_free_handle(&acmd->cmd_dmahandle);
1623 
1624 		acmd->cmd_dmahandle = NULL;
1625 	}
1626 }
1627 
1628 /*ARGSUSED*/
1629 static void
1630 mrsas_tran_sync_pkt(struct scsi_address *ap, struct scsi_pkt *pkt)
1631 {
1632 	register struct scsa_cmd	*acmd = PKT2CMD(pkt);
1633 
1634 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1635 
1636 	if (acmd->cmd_flags & CFLAG_DMAVALID) {
1637 		(void) ddi_dma_sync(acmd->cmd_dmahandle, acmd->cmd_dma_offset,
1638 		    acmd->cmd_dma_len, (acmd->cmd_flags & CFLAG_DMASEND) ?
1639 		    DDI_DMA_SYNC_FORDEV : DDI_DMA_SYNC_FORCPU);
1640 	}
1641 }
1642 
1643 /*
1644  * mrsas_isr(caddr_t)
1645  *
1646  * The Interrupt Service Routine
1647  *
1648  * Collect status for all completed commands and do callback
1649  *
1650  */
1651 static uint_t
1652 mrsas_isr(struct mrsas_instance *instance)
1653 {
1654 	int		need_softintr;
1655 	uint32_t	producer;
1656 	uint32_t	consumer;
1657 	uint32_t	context;
1658 
1659 	struct mrsas_cmd	*cmd;
1660 	struct mrsas_header	*hdr;
1661 	struct scsi_pkt		*pkt;
1662 
1663 	ASSERT(instance);
1664 	if ((instance->intr_type == DDI_INTR_TYPE_FIXED) &&
1665 	    !instance->func_ptr->intr_ack(instance)) {
1666 		return (DDI_INTR_UNCLAIMED);
1667 	}
1668 
1669 	(void) ddi_dma_sync(instance->mfi_internal_dma_obj.dma_handle,
1670 	    0, 0, DDI_DMA_SYNC_FORCPU);
1671 
1672 	if (mrsas_check_dma_handle(instance->mfi_internal_dma_obj.dma_handle)
1673 	    != DDI_SUCCESS) {
1674 		mrsas_fm_ereport(instance, DDI_FM_DEVICE_NO_RESPONSE);
1675 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
1676 		con_log(CL_ANN1, (CE_WARN,
1677 		    "mr_sas_isr(): FMA check, returning DDI_INTR_UNCLAIMED"));
1678 		return (DDI_INTR_CLAIMED);
1679 	}
1680 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1681 
1682 	producer = ddi_get32(instance->mfi_internal_dma_obj.acc_handle,
1683 	    instance->producer);
1684 	consumer = ddi_get32(instance->mfi_internal_dma_obj.acc_handle,
1685 	    instance->consumer);
1686 
1687 	con_log(CL_ANN1, (CE_NOTE, " producer %x consumer %x ",
1688 	    producer, consumer));
1689 	if (producer == consumer) {
1690 		con_log(CL_ANN1, (CE_WARN, "producer =  consumer case"));
1691 		DTRACE_PROBE2(isr_pc_err, uint32_t, producer,
1692 		    uint32_t, consumer);
1693 		return (DDI_INTR_CLAIMED);
1694 	}
1695 
1696 #ifdef OCRDEBUG
1697 	if (debug_consecutive_timeout_after_ocr_g == 1) {
1698 		con_log(CL_ANN1, (CE_NOTE,
1699 		"simulating consecutive timeout after ocr"));
1700 		return (DDI_INTR_CLAIMED);
1701 	}
1702 #endif
1703 
1704 	if (mrsas_initiate_ocr_if_fw_is_faulty(instance) ==  1) {
1705 		con_log(CL_ANN1, (CE_NOTE, "Fw Fault State Detected "));
1706 		if (instance->timeout_id == (timeout_id_t)-1) {
1707 			con_log(CL_ANN1, (CE_NOTE,
1708 			    "Trigger timeout in NON IO Case"));
1709 			instance->timeout_id =
1710 			    timeout(io_timeout_checker, (void *)instance,
1711 			    drv_usectohz(MRSAS_1_SECOND));
1712 		}
1713 		return (DDI_INTR_CLAIMED);
1714 	}
1715 
1716 	mutex_enter(&instance->completed_pool_mtx);
1717 	mutex_enter(&instance->cmd_pend_mtx);
1718 
1719 	while (consumer != producer) {
1720 		context = ddi_get32(instance->mfi_internal_dma_obj.acc_handle,
1721 		    &instance->reply_queue[consumer]);
1722 		cmd = instance->cmd_list[context];
1723 
1724 		if (cmd->sync_cmd == MRSAS_TRUE) {
1725 		hdr = (struct mrsas_header *)&cmd->frame->hdr;
1726 		if (hdr) {
1727 			mlist_del_init(&cmd->list);
1728 		}
1729 		} else {
1730 			pkt = cmd->pkt;
1731 			if (pkt) {
1732 				mlist_del_init(&cmd->list);
1733 			}
1734 		}
1735 
1736 		mlist_add_tail(&cmd->list, &instance->completed_pool_list);
1737 
1738 		consumer++;
1739 		if (consumer == (instance->max_fw_cmds + 1)) {
1740 			consumer = 0;
1741 		}
1742 	}
1743 	mutex_exit(&instance->cmd_pend_mtx);
1744 	mutex_exit(&instance->completed_pool_mtx);
1745 
1746 	ddi_put32(instance->mfi_internal_dma_obj.acc_handle,
1747 	    instance->consumer, consumer);
1748 	(void) ddi_dma_sync(instance->mfi_internal_dma_obj.dma_handle,
1749 	    0, 0, DDI_DMA_SYNC_FORDEV);
1750 
1751 	if (instance->softint_running) {
1752 		need_softintr = 0;
1753 	} else {
1754 		need_softintr = 1;
1755 	}
1756 
1757 	if (instance->isr_level == HIGH_LEVEL_INTR) {
1758 		if (need_softintr) {
1759 			ddi_trigger_softintr(instance->soft_intr_id);
1760 		}
1761 	} else {
1762 		/*
1763 		 * Not a high-level interrupt, therefore call the soft level
1764 		 * interrupt explicitly
1765 		 */
1766 		(void) mrsas_softintr(instance);
1767 	}
1768 
1769 	return (DDI_INTR_CLAIMED);
1770 }
1771 
1772 
1773 /*
1774  * ************************************************************************** *
1775  *                                                                            *
1776  *                                  libraries                                 *
1777  *                                                                            *
1778  * ************************************************************************** *
1779  */
1780 /*
1781  * get_mfi_pkt : Get a command from the free pool
1782  * After successful allocation, the caller of this routine
1783  * must clear the frame buffer (memset to zero) before
1784  * using the packet further.
1785  *
1786  * ***** Note *****
1787  * After clearing the frame buffer the context id of the
1788  * frame buffer SHOULD be restored back.
1789  */
1790 static struct mrsas_cmd *
1791 get_mfi_pkt(struct mrsas_instance *instance)
1792 {
1793 	mlist_t 		*head = &instance->cmd_pool_list;
1794 	struct mrsas_cmd	*cmd = NULL;
1795 
1796 	mutex_enter(&instance->cmd_pool_mtx);
1797 	ASSERT(mutex_owned(&instance->cmd_pool_mtx));
1798 
1799 	if (!mlist_empty(head)) {
1800 		cmd = mlist_entry(head->next, struct mrsas_cmd, list);
1801 		mlist_del_init(head->next);
1802 	}
1803 	if (cmd != NULL) {
1804 		cmd->pkt = NULL;
1805 		cmd->retry_count_for_ocr = 0;
1806 		cmd->drv_pkt_time = 0;
1807 	}
1808 	mutex_exit(&instance->cmd_pool_mtx);
1809 
1810 	return (cmd);
1811 }
1812 
1813 static struct mrsas_cmd *
1814 get_mfi_app_pkt(struct mrsas_instance *instance)
1815 {
1816 	mlist_t				*head = &instance->app_cmd_pool_list;
1817 	struct mrsas_cmd	*cmd = NULL;
1818 
1819 	mutex_enter(&instance->app_cmd_pool_mtx);
1820 	ASSERT(mutex_owned(&instance->app_cmd_pool_mtx));
1821 
1822 	if (!mlist_empty(head)) {
1823 		cmd = mlist_entry(head->next, struct mrsas_cmd, list);
1824 		mlist_del_init(head->next);
1825 	}
1826 	if (cmd != NULL)
1827 		cmd->pkt = NULL;
1828 	mutex_exit(&instance->app_cmd_pool_mtx);
1829 
1830 	return (cmd);
1831 }
1832 /*
1833  * return_mfi_pkt : Return a cmd to free command pool
1834  */
1835 static void
1836 return_mfi_pkt(struct mrsas_instance *instance, struct mrsas_cmd *cmd)
1837 {
1838 	mutex_enter(&instance->cmd_pool_mtx);
1839 	ASSERT(mutex_owned(&instance->cmd_pool_mtx));
1840 
1841 	mlist_add(&cmd->list, &instance->cmd_pool_list);
1842 
1843 	mutex_exit(&instance->cmd_pool_mtx);
1844 }
1845 
1846 static void
1847 return_mfi_app_pkt(struct mrsas_instance *instance, struct mrsas_cmd *cmd)
1848 {
1849 	mutex_enter(&instance->app_cmd_pool_mtx);
1850 	ASSERT(mutex_owned(&instance->app_cmd_pool_mtx));
1851 
1852 	mlist_add(&cmd->list, &instance->app_cmd_pool_list);
1853 
1854 	mutex_exit(&instance->app_cmd_pool_mtx);
1855 }
1856 static void
1857 push_pending_mfi_pkt(struct mrsas_instance *instance, struct mrsas_cmd *cmd)
1858 {
1859 	struct scsi_pkt *pkt;
1860 	struct mrsas_header	*hdr;
1861 	con_log(CL_ANN1, (CE_NOTE, "push_pending_pkt(): Called\n"));
1862 	mutex_enter(&instance->cmd_pend_mtx);
1863 	ASSERT(mutex_owned(&instance->cmd_pend_mtx));
1864 	mlist_del_init(&cmd->list);
1865 	mlist_add_tail(&cmd->list, &instance->cmd_pend_list);
1866 	if (cmd->sync_cmd == MRSAS_TRUE) {
1867 		hdr = (struct mrsas_header *)&cmd->frame->hdr;
1868 		if (hdr) {
1869 			con_log(CL_ANN1, (CE_CONT,
1870 			    "push_pending_mfi_pkt: "
1871 			    "cmd %p index %x "
1872 			    "time %llx",
1873 			    (void *)cmd, cmd->index,
1874 			    gethrtime()));
1875 			/* Wait for specified interval  */
1876 			hdr->timeout = (unsigned int)debug_timeout_g;
1877 			con_log(CL_ANN1, (CE_CONT,
1878 			    "push_pending_pkt(): "
1879 			    "Called IO Timeout Value %x\n",
1880 			    hdr->timeout));
1881 		}
1882 		if (hdr && instance->timeout_id == (timeout_id_t)-1) {
1883 			instance->timeout_id = timeout(io_timeout_checker,
1884 			    (void *) instance, drv_usectohz(MRSAS_1_SECOND));
1885 		}
1886 	} else {
1887 		pkt = cmd->pkt;
1888 		if (pkt) {
1889 			con_log(CL_ANN1, (CE_CONT,
1890 			    "push_pending_mfi_pkt: "
1891 			    "cmd %p index %x pkt %p, "
1892 			    "time %llx",
1893 			    (void *)cmd, cmd->index, (void *)pkt,
1894 			    gethrtime()));
1895 			cmd->drv_pkt_time = (uint16_t)debug_timeout_g;
1896 		}
1897 		if (pkt && instance->timeout_id == (timeout_id_t)-1) {
1898 			instance->timeout_id = timeout(io_timeout_checker,
1899 			    (void *) instance, drv_usectohz(MRSAS_1_SECOND));
1900 		}
1901 	}
1902 
1903 	mutex_exit(&instance->cmd_pend_mtx);
1904 }
1905 
1906 static int
1907 mrsas_print_pending_cmds(struct mrsas_instance *instance)
1908 {
1909 	mlist_t *head = &instance->cmd_pend_list;
1910 	mlist_t *tmp = head;
1911 	struct mrsas_cmd *cmd = NULL;
1912 	struct mrsas_header	*hdr;
1913 	unsigned int		flag = 1;
1914 
1915 	struct scsi_pkt *pkt;
1916 	con_log(CL_ANN1, (CE_NOTE,
1917 	    "mrsas_print_pending_cmds(): Called"));
1918 	while (flag) {
1919 		mutex_enter(&instance->cmd_pend_mtx);
1920 		tmp	=	tmp->next;
1921 		if (tmp == head) {
1922 			mutex_exit(&instance->cmd_pend_mtx);
1923 			flag = 0;
1924 			break;
1925 		} else {
1926 			cmd = mlist_entry(tmp, struct mrsas_cmd, list);
1927 			mutex_exit(&instance->cmd_pend_mtx);
1928 			if (cmd) {
1929 				if (cmd->sync_cmd == MRSAS_TRUE) {
1930 				hdr = (struct mrsas_header *)&cmd->frame->hdr;
1931 					if (hdr) {
1932 					hdr->timeout =
1933 					    (unsigned int)debug_timeout_g;
1934 					con_log(CL_ANN1, (CE_CONT,
1935 					    "print: cmd %p index %x hdr %p",
1936 					    (void *)cmd, cmd->index,
1937 					    (void *)hdr));
1938 					}
1939 				} else {
1940 					pkt = cmd->pkt;
1941 					if (pkt) {
1942 					cmd->drv_pkt_time =
1943 					    (uint16_t)debug_timeout_g;
1944 					con_log(CL_ANN1, (CE_CONT,
1945 					    "print: cmd %p index %x "
1946 					    "pkt %p", (void *)cmd, cmd->index,
1947 					    (void *)pkt));
1948 					}
1949 				}
1950 			}
1951 		}
1952 	}
1953 	con_log(CL_ANN1, (CE_NOTE, "mrsas_print_pending_cmds(): Done\n"));
1954 	return (DDI_SUCCESS);
1955 }
1956 
1957 
1958 static int
1959 mrsas_complete_pending_cmds(struct mrsas_instance *instance)
1960 {
1961 
1962 	struct mrsas_cmd *cmd = NULL;
1963 	struct scsi_pkt *pkt;
1964 	struct mrsas_header *hdr;
1965 
1966 	struct mlist_head		*pos, *next;
1967 
1968 	con_log(CL_ANN1, (CE_NOTE,
1969 	    "mrsas_complete_pending_cmds(): Called"));
1970 
1971 	mutex_enter(&instance->cmd_pend_mtx);
1972 	mlist_for_each_safe(pos, next, &instance->cmd_pend_list) {
1973 		cmd = mlist_entry(pos, struct mrsas_cmd, list);
1974 		if (cmd) {
1975 			pkt = cmd->pkt;
1976 			if (pkt) { // for IO
1977 				if (((pkt->pkt_flags & FLAG_NOINTR)
1978 				    == 0) && pkt->pkt_comp) {
1979 					pkt->pkt_reason
1980 					    = CMD_DEV_GONE;
1981 					pkt->pkt_statistics
1982 					    = STAT_DISCON;
1983 					con_log(CL_ANN1, (CE_NOTE,
1984 					    "fail and posting to scsa "
1985 					    "cmd %p index %x"
1986 					    " pkt %p "
1987 					    "time : %llx",
1988 					    (void *)cmd, cmd->index,
1989 					    (void *)pkt, gethrtime()));
1990 					(*pkt->pkt_comp)(pkt);
1991 				}
1992 			} else { /* for DCMDS */
1993 				if (cmd->sync_cmd == MRSAS_TRUE) {
1994 				hdr = (struct mrsas_header *)&cmd->frame->hdr;
1995 				con_log(CL_ANN1, (CE_NOTE,
1996 				    "posting invalid status to application "
1997 				    "cmd %p index %x"
1998 				    " hdr %p "
1999 				    "time : %llx",
2000 				    (void *)cmd, cmd->index,
2001 				    (void *)hdr, gethrtime()));
2002 				hdr->cmd_status = MFI_STAT_INVALID_STATUS;
2003 				complete_cmd_in_sync_mode(instance, cmd);
2004 				}
2005 			}
2006 			mlist_del_init(&cmd->list);
2007 		} else {
2008 			con_log(CL_ANN1, (CE_NOTE,
2009 			    "mrsas_complete_pending_cmds:"
2010 			    "NULL command\n"));
2011 		}
2012 		con_log(CL_ANN1, (CE_NOTE,
2013 		    "mrsas_complete_pending_cmds:"
2014 		    "looping for more commands\n"));
2015 	}
2016 	mutex_exit(&instance->cmd_pend_mtx);
2017 
2018 	con_log(CL_ANN1, (CE_NOTE, "mrsas_complete_pending_cmds(): DONE\n"));
2019 	return (DDI_SUCCESS);
2020 }
2021 
2022 
2023 static int
2024 mrsas_issue_pending_cmds(struct mrsas_instance *instance)
2025 {
2026 	mlist_t *head	=	&instance->cmd_pend_list;
2027 	mlist_t *tmp	=	head->next;
2028 	struct mrsas_cmd *cmd = NULL;
2029 	struct scsi_pkt *pkt;
2030 
2031 	con_log(CL_ANN1, (CE_NOTE, "mrsas_issue_pending_cmds(): Called"));
2032 	while (tmp != head) {
2033 		mutex_enter(&instance->cmd_pend_mtx);
2034 		cmd = mlist_entry(tmp, struct mrsas_cmd, list);
2035 		tmp = tmp->next;
2036 		mutex_exit(&instance->cmd_pend_mtx);
2037 		if (cmd) {
2038 			con_log(CL_ANN1, (CE_NOTE,
2039 			    "mrsas_issue_pending_cmds(): "
2040 			    "Got a cmd: cmd:%p\n", (void *)cmd));
2041 			cmd->retry_count_for_ocr++;
2042 			con_log(CL_ANN1, (CE_NOTE,
2043 			    "mrsas_issue_pending_cmds(): "
2044 			    "cmd retry count = %d\n",
2045 			    cmd->retry_count_for_ocr));
2046 			if (cmd->retry_count_for_ocr > IO_RETRY_COUNT) {
2047 				con_log(CL_ANN1, (CE_NOTE,
2048 				    "mrsas_issue_pending_cmds():"
2049 				    "Calling Kill Adapter\n"));
2050 				(void) mrsas_kill_adapter(instance);
2051 				return (DDI_FAILURE);
2052 			}
2053 			pkt = cmd->pkt;
2054 			if (pkt) {
2055 				con_log(CL_ANN1, (CE_NOTE,
2056 				    "PENDING ISSUE: cmd %p index %x "
2057 				    "pkt %p time %llx",
2058 				    (void *)cmd, cmd->index,
2059 				    (void *)pkt,
2060 				    gethrtime()));
2061 
2062 			}
2063 			if (cmd->sync_cmd == MRSAS_TRUE) {
2064 				instance->func_ptr->issue_cmd_in_sync_mode(
2065 				    instance, cmd);
2066 			} else {
2067 				instance->func_ptr->issue_cmd(cmd, instance);
2068 			}
2069 		} else {
2070 			con_log(CL_ANN1, (CE_NOTE,
2071 			    "mrsas_issue_pending_cmds: NULL command\n"));
2072 		}
2073 		con_log(CL_ANN1, (CE_NOTE,
2074 		    "mrsas_issue_pending_cmds:"
2075 		    "looping for more commands"));
2076 	}
2077 	con_log(CL_ANN1, (CE_NOTE, "mrsas_issue_pending_cmds(): DONE\n"));
2078 	return (DDI_SUCCESS);
2079 }
2080 
2081 /*
2082  * destroy_mfi_frame_pool
2083  */
2084 static void
2085 destroy_mfi_frame_pool(struct mrsas_instance *instance)
2086 {
2087 	int		i;
2088 	uint32_t	max_cmd = instance->max_fw_cmds;
2089 
2090 	struct mrsas_cmd	*cmd;
2091 
2092 	/* return all frames to pool */
2093 	for (i = 0; i < max_cmd+1; i++) {
2094 
2095 		cmd = instance->cmd_list[i];
2096 
2097 		if (cmd->frame_dma_obj_status == DMA_OBJ_ALLOCATED)
2098 			(void) mrsas_free_dma_obj(instance, cmd->frame_dma_obj);
2099 
2100 		cmd->frame_dma_obj_status  = DMA_OBJ_FREED;
2101 	}
2102 
2103 }
2104 
2105 /*
2106  * create_mfi_frame_pool
2107  */
2108 static int
2109 create_mfi_frame_pool(struct mrsas_instance *instance)
2110 {
2111 	int		i = 0;
2112 	int		cookie_cnt;
2113 	uint16_t	max_cmd;
2114 	uint16_t	sge_sz;
2115 	uint32_t	sgl_sz;
2116 	uint32_t	tot_frame_size;
2117 	struct mrsas_cmd	*cmd;
2118 
2119 	max_cmd = instance->max_fw_cmds;
2120 
2121 	sge_sz	= sizeof (struct mrsas_sge_ieee);
2122 
2123 	/* calculated the number of 64byte frames required for SGL */
2124 	sgl_sz		= sge_sz * instance->max_num_sge;
2125 	tot_frame_size	= sgl_sz + MRMFI_FRAME_SIZE + SENSE_LENGTH;
2126 
2127 	con_log(CL_DLEVEL3, (CE_NOTE, "create_mfi_frame_pool: "
2128 	    "sgl_sz %x tot_frame_size %x", sgl_sz, tot_frame_size));
2129 
2130 	while (i < max_cmd+1) {
2131 		cmd = instance->cmd_list[i];
2132 
2133 		cmd->frame_dma_obj.size	= tot_frame_size;
2134 		cmd->frame_dma_obj.dma_attr = mrsas_generic_dma_attr;
2135 		cmd->frame_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
2136 		cmd->frame_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
2137 		cmd->frame_dma_obj.dma_attr.dma_attr_sgllen = 1;
2138 		cmd->frame_dma_obj.dma_attr.dma_attr_align = 64;
2139 
2140 
2141 		cookie_cnt = mrsas_alloc_dma_obj(instance, &cmd->frame_dma_obj,
2142 		    (uchar_t)DDI_STRUCTURE_LE_ACC);
2143 
2144 		if (cookie_cnt == -1 || cookie_cnt > 1) {
2145 			con_log(CL_ANN, (CE_WARN,
2146 			    "create_mfi_frame_pool: could not alloc."));
2147 			return (DDI_FAILURE);
2148 		}
2149 
2150 		bzero(cmd->frame_dma_obj.buffer, tot_frame_size);
2151 
2152 		cmd->frame_dma_obj_status = DMA_OBJ_ALLOCATED;
2153 		cmd->frame = (union mrsas_frame *)cmd->frame_dma_obj.buffer;
2154 		cmd->frame_phys_addr =
2155 		    cmd->frame_dma_obj.dma_cookie[0].dmac_address;
2156 
2157 		cmd->sense = (uint8_t *)(((unsigned long)
2158 		    cmd->frame_dma_obj.buffer) +
2159 		    tot_frame_size - SENSE_LENGTH);
2160 		cmd->sense_phys_addr =
2161 		    cmd->frame_dma_obj.dma_cookie[0].dmac_address +
2162 		    tot_frame_size - SENSE_LENGTH;
2163 
2164 		if (!cmd->frame || !cmd->sense) {
2165 			con_log(CL_ANN, (CE_NOTE,
2166 			    "mr_sas: pci_pool_alloc failed"));
2167 
2168 			return (ENOMEM);
2169 		}
2170 
2171 		ddi_put32(cmd->frame_dma_obj.acc_handle,
2172 		    &cmd->frame->io.context, cmd->index);
2173 		i++;
2174 
2175 		con_log(CL_DLEVEL3, (CE_NOTE, "[%x]-%x",
2176 		    cmd->index, cmd->frame_phys_addr));
2177 	}
2178 
2179 	return (DDI_SUCCESS);
2180 }
2181 
2182 /*
2183  * free_additional_dma_buffer
2184  */
2185 static void
2186 free_additional_dma_buffer(struct mrsas_instance *instance)
2187 {
2188 	if (instance->mfi_internal_dma_obj.status == DMA_OBJ_ALLOCATED) {
2189 		(void) mrsas_free_dma_obj(instance,
2190 		    instance->mfi_internal_dma_obj);
2191 		instance->mfi_internal_dma_obj.status = DMA_OBJ_FREED;
2192 	}
2193 
2194 	if (instance->mfi_evt_detail_obj.status == DMA_OBJ_ALLOCATED) {
2195 		(void) mrsas_free_dma_obj(instance,
2196 		    instance->mfi_evt_detail_obj);
2197 		instance->mfi_evt_detail_obj.status = DMA_OBJ_FREED;
2198 	}
2199 }
2200 
2201 /*
2202  * alloc_additional_dma_buffer
2203  */
2204 static int
2205 alloc_additional_dma_buffer(struct mrsas_instance *instance)
2206 {
2207 	uint32_t	reply_q_sz;
2208 	uint32_t	internal_buf_size = PAGESIZE*2;
2209 
2210 	/* max cmds plus 1 + producer & consumer */
2211 	reply_q_sz = sizeof (uint32_t) * (instance->max_fw_cmds + 1 + 2);
2212 
2213 	instance->mfi_internal_dma_obj.size = internal_buf_size;
2214 	instance->mfi_internal_dma_obj.dma_attr	= mrsas_generic_dma_attr;
2215 	instance->mfi_internal_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
2216 	instance->mfi_internal_dma_obj.dma_attr.dma_attr_count_max =
2217 	    0xFFFFFFFFU;
2218 	instance->mfi_internal_dma_obj.dma_attr.dma_attr_sgllen	= 1;
2219 
2220 	if (mrsas_alloc_dma_obj(instance, &instance->mfi_internal_dma_obj,
2221 	    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
2222 		con_log(CL_ANN, (CE_WARN,
2223 		    "mr_sas: could not alloc reply queue"));
2224 		return (DDI_FAILURE);
2225 	}
2226 
2227 	bzero(instance->mfi_internal_dma_obj.buffer, internal_buf_size);
2228 
2229 	instance->mfi_internal_dma_obj.status |= DMA_OBJ_ALLOCATED;
2230 
2231 	instance->producer = (uint32_t *)((unsigned long)
2232 	    instance->mfi_internal_dma_obj.buffer);
2233 	instance->consumer = (uint32_t *)((unsigned long)
2234 	    instance->mfi_internal_dma_obj.buffer + 4);
2235 	instance->reply_queue = (uint32_t *)((unsigned long)
2236 	    instance->mfi_internal_dma_obj.buffer + 8);
2237 	instance->internal_buf = (caddr_t)(((unsigned long)
2238 	    instance->mfi_internal_dma_obj.buffer) + reply_q_sz + 8);
2239 	instance->internal_buf_dmac_add =
2240 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address +
2241 	    (reply_q_sz + 8);
2242 	instance->internal_buf_size = internal_buf_size -
2243 	    (reply_q_sz + 8);
2244 
2245 	/* allocate evt_detail */
2246 	instance->mfi_evt_detail_obj.size = sizeof (struct mrsas_evt_detail);
2247 	instance->mfi_evt_detail_obj.dma_attr = mrsas_generic_dma_attr;
2248 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
2249 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
2250 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_sgllen = 1;
2251 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_align = 1;
2252 
2253 	if (mrsas_alloc_dma_obj(instance, &instance->mfi_evt_detail_obj,
2254 	    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
2255 		con_log(CL_ANN, (CE_WARN, "alloc_additional_dma_buffer: "
2256 		    "could not allocate data transfer buffer."));
2257 		return (DDI_FAILURE);
2258 	}
2259 
2260 	bzero(instance->mfi_evt_detail_obj.buffer,
2261 	    sizeof (struct mrsas_evt_detail));
2262 
2263 	instance->mfi_evt_detail_obj.status |= DMA_OBJ_ALLOCATED;
2264 
2265 	return (DDI_SUCCESS);
2266 }
2267 
2268 /*
2269  * free_space_for_mfi
2270  */
2271 static void
2272 free_space_for_mfi(struct mrsas_instance *instance)
2273 {
2274 	int		i;
2275 	uint32_t	max_cmd = instance->max_fw_cmds;
2276 
2277 	/* already freed */
2278 	if (instance->cmd_list == NULL) {
2279 		return;
2280 	}
2281 
2282 	free_additional_dma_buffer(instance);
2283 
2284 	/* first free the MFI frame pool */
2285 	destroy_mfi_frame_pool(instance);
2286 
2287 	/* free all the commands in the cmd_list */
2288 	for (i = 0; i < instance->max_fw_cmds+1; i++) {
2289 		kmem_free(instance->cmd_list[i],
2290 		    sizeof (struct mrsas_cmd));
2291 
2292 		instance->cmd_list[i] = NULL;
2293 	}
2294 
2295 	/* free the cmd_list buffer itself */
2296 	kmem_free(instance->cmd_list,
2297 	    sizeof (struct mrsas_cmd *) * (max_cmd+1));
2298 
2299 	instance->cmd_list = NULL;
2300 
2301 	INIT_LIST_HEAD(&instance->cmd_pool_list);
2302 	INIT_LIST_HEAD(&instance->app_cmd_pool_list);
2303 	INIT_LIST_HEAD(&instance->cmd_pend_list);
2304 }
2305 
2306 /*
2307  * alloc_space_for_mfi
2308  */
2309 static int
2310 alloc_space_for_mfi(struct mrsas_instance *instance)
2311 {
2312 	int		i;
2313 	uint32_t	max_cmd;
2314 	uint32_t	reserve_cmd;
2315 	size_t		sz;
2316 
2317 	struct mrsas_cmd	*cmd;
2318 
2319 	max_cmd = instance->max_fw_cmds;
2320 
2321 	/* reserve 1 more slot for flush_cache */
2322 	sz = sizeof (struct mrsas_cmd *) * (max_cmd+1);
2323 
2324 	/*
2325 	 * instance->cmd_list is an array of struct mrsas_cmd pointers.
2326 	 * Allocate the dynamic array first and then allocate individual
2327 	 * commands.
2328 	 */
2329 	instance->cmd_list = kmem_zalloc(sz, KM_SLEEP);
2330 	ASSERT(instance->cmd_list);
2331 
2332 	for (i = 0; i < max_cmd+1; i++) {
2333 		instance->cmd_list[i] = kmem_zalloc(sizeof (struct mrsas_cmd),
2334 		    KM_SLEEP);
2335 		ASSERT(instance->cmd_list[i]);
2336 	}
2337 
2338 	INIT_LIST_HEAD(&instance->cmd_pool_list);
2339 	INIT_LIST_HEAD(&instance->cmd_pend_list);
2340 	/* add all the commands to command pool (instance->cmd_pool) */
2341 	reserve_cmd	=	APP_RESERVE_CMDS;
2342 	INIT_LIST_HEAD(&instance->app_cmd_pool_list);
2343 	for (i = 0; i < reserve_cmd-1; i++) {
2344 		cmd	= instance->cmd_list[i];
2345 		cmd->index	= i;
2346 		mlist_add_tail(&cmd->list, &instance->app_cmd_pool_list);
2347 	}
2348 	/*
2349 	 * reserve slot instance->cmd_list[APP_RESERVE_CMDS-1]
2350 	 * for abort_aen_cmd
2351 	 */
2352 	for (i = reserve_cmd; i < max_cmd; i++) {
2353 		cmd			= instance->cmd_list[i];
2354 		cmd->index	= i;
2355 		mlist_add_tail(&cmd->list, &instance->cmd_pool_list);
2356 	}
2357 
2358 	/* single slot for flush_cache won't be added in command pool */
2359 	cmd		= instance->cmd_list[max_cmd];
2360 	cmd->index	= i;
2361 
2362 	/* create a frame pool and assign one frame to each cmd */
2363 	if (create_mfi_frame_pool(instance)) {
2364 		con_log(CL_ANN, (CE_NOTE, "error creating frame DMA pool"));
2365 		return (DDI_FAILURE);
2366 	}
2367 
2368 	/* create a frame pool and assign one frame to each cmd */
2369 	if (alloc_additional_dma_buffer(instance)) {
2370 		con_log(CL_ANN, (CE_NOTE, "error creating frame DMA pool"));
2371 		return (DDI_FAILURE);
2372 	}
2373 
2374 	return (DDI_SUCCESS);
2375 }
2376 
2377 
2378 /*
2379  * get_ctrl_info
2380  */
2381 static int
2382 get_ctrl_info(struct mrsas_instance *instance,
2383     struct mrsas_ctrl_info *ctrl_info)
2384 {
2385 	int	ret = 0;
2386 
2387 	struct mrsas_cmd		*cmd;
2388 	struct mrsas_dcmd_frame	*dcmd;
2389 	struct mrsas_ctrl_info	*ci;
2390 
2391 	cmd = get_mfi_pkt(instance);
2392 
2393 	if (!cmd) {
2394 		con_log(CL_ANN, (CE_WARN,
2395 		    "Failed to get a cmd for ctrl info"));
2396 		DTRACE_PROBE2(info_mfi_err, uint16_t, instance->fw_outstanding,
2397 		    uint16_t, instance->max_fw_cmds);
2398 		return (DDI_FAILURE);
2399 	}
2400 	cmd->retry_count_for_ocr = 0;
2401 	/* Clear the frame buffer and assign back the context id */
2402 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
2403 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
2404 	    cmd->index);
2405 
2406 	dcmd = &cmd->frame->dcmd;
2407 
2408 	ci = (struct mrsas_ctrl_info *)instance->internal_buf;
2409 
2410 	if (!ci) {
2411 		con_log(CL_ANN, (CE_WARN,
2412 		    "Failed to alloc mem for ctrl info"));
2413 		return_mfi_pkt(instance, cmd);
2414 		return (DDI_FAILURE);
2415 	}
2416 
2417 	(void) memset(ci, 0, sizeof (struct mrsas_ctrl_info));
2418 
2419 	/* for( i = 0; i < DCMD_MBOX_SZ; i++ ) dcmd->mbox.b[i] = 0; */
2420 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
2421 
2422 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
2423 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status,
2424 	    MFI_CMD_STATUS_POLL_MODE);
2425 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 1);
2426 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
2427 	    MFI_FRAME_DIR_READ);
2428 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
2429 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len,
2430 	    sizeof (struct mrsas_ctrl_info));
2431 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
2432 	    MR_DCMD_CTRL_GET_INFO);
2433 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].phys_addr,
2434 	    instance->internal_buf_dmac_add);
2435 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].length,
2436 	    sizeof (struct mrsas_ctrl_info));
2437 
2438 	cmd->frame_count = 1;
2439 
2440 	if (!instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
2441 	ret = 0;
2442 
2443 	ctrl_info->max_request_size = ddi_get32(
2444 	    cmd->frame_dma_obj.acc_handle, &ci->max_request_size);
2445 
2446 	ctrl_info->ld_present_count = ddi_get16(
2447 	    cmd->frame_dma_obj.acc_handle, &ci->ld_present_count);
2448 
2449 /*
2450  *	ctrl_info->properties.on_off_properties.disable_online_ctrl_reset =
2451  *	    ci->properties.on_off_properties.disable_online_ctrl_reset;
2452  */
2453 	ddi_rep_get8(cmd->frame_dma_obj.acc_handle,
2454 	    (uint8_t *)(ctrl_info->product_name),
2455 	    (uint8_t *)(ci->product_name), 80 * sizeof (char),
2456 	    DDI_DEV_AUTOINCR);
2457 	/* should get more members of ci with ddi_get when needed */
2458 	} else {
2459 		con_log(CL_ANN, (CE_WARN, "get_ctrl_info: Ctrl info failed"));
2460 		ret = -1;
2461 	}
2462 
2463 	if (mrsas_common_check(instance, cmd) != DDI_SUCCESS) {
2464 		ret = -1;
2465 	}
2466 	return_mfi_pkt(instance, cmd);
2467 
2468 	return (ret);
2469 }
2470 
2471 /*
2472  * abort_aen_cmd
2473  */
2474 static int
2475 abort_aen_cmd(struct mrsas_instance *instance,
2476     struct mrsas_cmd *cmd_to_abort)
2477 {
2478 	int	ret = 0;
2479 
2480 	struct mrsas_cmd		*cmd;
2481 	struct mrsas_abort_frame	*abort_fr;
2482 
2483 	cmd = instance->cmd_list[APP_RESERVE_CMDS-1];
2484 
2485 	if (!cmd) {
2486 		con_log(CL_ANN1, (CE_WARN,
2487 		    "abort_aen_cmd():Failed to get a cmd for abort_aen_cmd"));
2488 		DTRACE_PROBE2(abort_mfi_err, uint16_t, instance->fw_outstanding,
2489 		    uint16_t, instance->max_fw_cmds);
2490 		return (DDI_FAILURE);
2491 	}
2492 	cmd->retry_count_for_ocr = 0;
2493 	/* Clear the frame buffer and assign back the context id */
2494 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
2495 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
2496 	    cmd->index);
2497 
2498 	abort_fr = &cmd->frame->abort;
2499 
2500 	/* prepare and issue the abort frame */
2501 	ddi_put8(cmd->frame_dma_obj.acc_handle,
2502 	    &abort_fr->cmd, MFI_CMD_OP_ABORT);
2503 	ddi_put8(cmd->frame_dma_obj.acc_handle, &abort_fr->cmd_status,
2504 	    MFI_CMD_STATUS_SYNC_MODE);
2505 	ddi_put16(cmd->frame_dma_obj.acc_handle, &abort_fr->flags, 0);
2506 	ddi_put32(cmd->frame_dma_obj.acc_handle, &abort_fr->abort_context,
2507 	    cmd_to_abort->index);
2508 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2509 	    &abort_fr->abort_mfi_phys_addr_lo, cmd_to_abort->frame_phys_addr);
2510 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2511 	    &abort_fr->abort_mfi_phys_addr_hi, 0);
2512 
2513 	instance->aen_cmd->abort_aen = 1;
2514 
2515 	cmd->sync_cmd = MRSAS_TRUE;
2516 	cmd->frame_count = 1;
2517 
2518 	if (instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
2519 		con_log(CL_ANN1, (CE_WARN,
2520 		    "abort_aen_cmd: issue_cmd_in_poll_mode failed"));
2521 		ret = -1;
2522 	} else {
2523 		ret = 0;
2524 	}
2525 
2526 	instance->aen_cmd->abort_aen = 1;
2527 	instance->aen_cmd = 0;
2528 
2529 	atomic_add_16(&instance->fw_outstanding, (-1));
2530 
2531 	return (ret);
2532 }
2533 
2534 
2535 /*
2536  * init_mfi
2537  */
2538 static int
2539 init_mfi(struct mrsas_instance *instance)
2540 {
2541 	struct mrsas_cmd		*cmd;
2542 	struct mrsas_ctrl_info		ctrl_info;
2543 	struct mrsas_init_frame		*init_frame;
2544 	struct mrsas_init_queue_info	*initq_info;
2545 
2546 	/* we expect the FW state to be READY */
2547 	if (mfi_state_transition_to_ready(instance)) {
2548 		con_log(CL_ANN, (CE_WARN, "mr_sas: F/W is not ready"));
2549 		goto fail_ready_state;
2550 	}
2551 
2552 	/* get various operational parameters from status register */
2553 	instance->max_num_sge =
2554 	    (instance->func_ptr->read_fw_status_reg(instance) &
2555 	    0xFF0000) >> 0x10;
2556 	/*
2557 	 * Reduce the max supported cmds by 1. This is to ensure that the
2558 	 * reply_q_sz (1 more than the max cmd that driver may send)
2559 	 * does not exceed max cmds that the FW can support
2560 	 */
2561 	instance->max_fw_cmds =
2562 	    instance->func_ptr->read_fw_status_reg(instance) & 0xFFFF;
2563 	instance->max_fw_cmds = instance->max_fw_cmds - 1;
2564 
2565 	instance->max_num_sge =
2566 	    (instance->max_num_sge > MRSAS_MAX_SGE_CNT) ?
2567 	    MRSAS_MAX_SGE_CNT : instance->max_num_sge;
2568 
2569 	/* create a pool of commands */
2570 	if (alloc_space_for_mfi(instance) != DDI_SUCCESS)
2571 		goto fail_alloc_fw_space;
2572 
2573 	/*
2574 	 * Prepare a init frame. Note the init frame points to queue info
2575 	 * structure. Each frame has SGL allocated after first 64 bytes. For
2576 	 * this frame - since we don't need any SGL - we use SGL's space as
2577 	 * queue info structure
2578 	 */
2579 	cmd = get_mfi_pkt(instance);
2580 	cmd->retry_count_for_ocr = 0;
2581 
2582 	/* Clear the frame buffer and assign back the context id */
2583 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
2584 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
2585 	    cmd->index);
2586 
2587 	init_frame = (struct mrsas_init_frame *)cmd->frame;
2588 	initq_info = (struct mrsas_init_queue_info *)
2589 	    ((unsigned long)init_frame + 64);
2590 
2591 	(void) memset(init_frame, 0, MRMFI_FRAME_SIZE);
2592 	(void) memset(initq_info, 0, sizeof (struct mrsas_init_queue_info));
2593 
2594 	ddi_put32(cmd->frame_dma_obj.acc_handle, &initq_info->init_flags, 0);
2595 
2596 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2597 	    &initq_info->reply_queue_entries, instance->max_fw_cmds + 1);
2598 
2599 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2600 	    &initq_info->producer_index_phys_addr_hi, 0);
2601 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2602 	    &initq_info->producer_index_phys_addr_lo,
2603 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address);
2604 
2605 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2606 	    &initq_info->consumer_index_phys_addr_hi, 0);
2607 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2608 	    &initq_info->consumer_index_phys_addr_lo,
2609 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address + 4);
2610 
2611 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2612 	    &initq_info->reply_queue_start_phys_addr_hi, 0);
2613 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2614 	    &initq_info->reply_queue_start_phys_addr_lo,
2615 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address + 8);
2616 
2617 	ddi_put8(cmd->frame_dma_obj.acc_handle,
2618 	    &init_frame->cmd, MFI_CMD_OP_INIT);
2619 	ddi_put8(cmd->frame_dma_obj.acc_handle, &init_frame->cmd_status,
2620 	    MFI_CMD_STATUS_POLL_MODE);
2621 	ddi_put16(cmd->frame_dma_obj.acc_handle, &init_frame->flags, 0);
2622 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2623 	    &init_frame->queue_info_new_phys_addr_lo,
2624 	    cmd->frame_phys_addr + 64);
2625 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2626 	    &init_frame->queue_info_new_phys_addr_hi, 0);
2627 
2628 	ddi_put32(cmd->frame_dma_obj.acc_handle, &init_frame->data_xfer_len,
2629 	    sizeof (struct mrsas_init_queue_info));
2630 
2631 	cmd->frame_count = 1;
2632 
2633 	/* issue the init frame in polled mode */
2634 	if (instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
2635 		con_log(CL_ANN, (CE_WARN, "failed to init firmware"));
2636 		return_mfi_pkt(instance, cmd);
2637 		goto fail_fw_init;
2638 	}
2639 
2640 	if (mrsas_common_check(instance, cmd) != DDI_SUCCESS) {
2641 		return_mfi_pkt(instance, cmd);
2642 		goto fail_fw_init;
2643 	}
2644 	return_mfi_pkt(instance, cmd);
2645 
2646 	if (ctio_enable &&
2647 	    (instance->func_ptr->read_fw_status_reg(instance) & 0x04000000)) {
2648 		con_log(CL_ANN, (CE_NOTE, "mr_sas: IEEE SGL's supported"));
2649 		instance->flag_ieee = 1;
2650 	} else {
2651 		instance->flag_ieee = 0;
2652 	}
2653 
2654 	instance->disable_online_ctrl_reset = 0;
2655 	/* gather misc FW related information */
2656 	if (!get_ctrl_info(instance, &ctrl_info)) {
2657 		instance->max_sectors_per_req = ctrl_info.max_request_size;
2658 		con_log(CL_ANN1, (CE_NOTE,
2659 		    "product name %s ld present %d",
2660 		    ctrl_info.product_name, ctrl_info.ld_present_count));
2661 	} else {
2662 		instance->max_sectors_per_req = instance->max_num_sge *
2663 		    PAGESIZE / 512;
2664 	}
2665 /*
2666  *	instance->disable_online_ctrl_reset =
2667  *	    ctrl_info.properties.on_off_properties.disable_online_ctrl_reset;
2668  */
2669 	return (DDI_SUCCESS);
2670 
2671 fail_fw_init:
2672 fail_alloc_fw_space:
2673 
2674 	free_space_for_mfi(instance);
2675 
2676 fail_ready_state:
2677 	ddi_regs_map_free(&instance->regmap_handle);
2678 
2679 fail_mfi_reg_setup:
2680 	return (DDI_FAILURE);
2681 }
2682 
2683 
2684 
2685 
2686 
2687 
2688 static int
2689 mrsas_issue_init_mfi(struct mrsas_instance *instance)
2690 {
2691 	struct mrsas_cmd		*cmd;
2692 	struct mrsas_init_frame		*init_frame;
2693 	struct mrsas_init_queue_info	*initq_info;
2694 
2695 /*
2696  * Prepare a init frame. Note the init frame points to queue info
2697  * structure. Each frame has SGL allocated after first 64 bytes. For
2698  * this frame - since we don't need any SGL - we use SGL's space as
2699  * queue info structure
2700  */
2701 	con_log(CL_ANN1, (CE_NOTE,
2702 	    "mrsas_issue_init_mfi: entry\n"));
2703 	cmd = get_mfi_app_pkt(instance);
2704 
2705 	if (!cmd) {
2706 		con_log(CL_ANN1, (CE_NOTE,
2707 		    "mrsas_issue_init_mfi: get_pkt failed\n"));
2708 		return (DDI_FAILURE);
2709 	}
2710 
2711 	/* Clear the frame buffer and assign back the context id */
2712 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
2713 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
2714 	    cmd->index);
2715 
2716 	init_frame = (struct mrsas_init_frame *)cmd->frame;
2717 	initq_info = (struct mrsas_init_queue_info *)
2718 	    ((unsigned long)init_frame + 64);
2719 
2720 	(void) memset(init_frame, 0, MRMFI_FRAME_SIZE);
2721 	(void) memset(initq_info, 0, sizeof (struct mrsas_init_queue_info));
2722 
2723 	ddi_put32(cmd->frame_dma_obj.acc_handle, &initq_info->init_flags, 0);
2724 
2725 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2726 	    &initq_info->reply_queue_entries, instance->max_fw_cmds + 1);
2727 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2728 	    &initq_info->producer_index_phys_addr_hi, 0);
2729 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2730 	    &initq_info->producer_index_phys_addr_lo,
2731 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address);
2732 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2733 	    &initq_info->consumer_index_phys_addr_hi, 0);
2734 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2735 	    &initq_info->consumer_index_phys_addr_lo,
2736 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address + 4);
2737 
2738 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2739 	    &initq_info->reply_queue_start_phys_addr_hi, 0);
2740 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2741 	    &initq_info->reply_queue_start_phys_addr_lo,
2742 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address + 8);
2743 
2744 	ddi_put8(cmd->frame_dma_obj.acc_handle,
2745 	    &init_frame->cmd, MFI_CMD_OP_INIT);
2746 	ddi_put8(cmd->frame_dma_obj.acc_handle, &init_frame->cmd_status,
2747 	    MFI_CMD_STATUS_POLL_MODE);
2748 	ddi_put16(cmd->frame_dma_obj.acc_handle, &init_frame->flags, 0);
2749 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2750 	    &init_frame->queue_info_new_phys_addr_lo,
2751 	    cmd->frame_phys_addr + 64);
2752 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2753 	    &init_frame->queue_info_new_phys_addr_hi, 0);
2754 
2755 	ddi_put32(cmd->frame_dma_obj.acc_handle, &init_frame->data_xfer_len,
2756 	    sizeof (struct mrsas_init_queue_info));
2757 
2758 	cmd->frame_count = 1;
2759 
2760 	/* issue the init frame in polled mode */
2761 	if (instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
2762 		con_log(CL_ANN1, (CE_WARN,
2763 		    "mrsas_issue_init_mfi():failed to "
2764 		    "init firmware"));
2765 		return_mfi_app_pkt(instance, cmd);
2766 		return (DDI_FAILURE);
2767 	}
2768 	return_mfi_app_pkt(instance, cmd);
2769 	con_log(CL_ANN1, (CE_NOTE, "mrsas_issue_init_mfi: Done"));
2770 	return (DDI_SUCCESS);
2771 }
2772 /*
2773  * mfi_state_transition_to_ready	: Move the FW to READY state
2774  *
2775  * @reg_set			: MFI register set
2776  */
2777 static int
2778 mfi_state_transition_to_ready(struct mrsas_instance *instance)
2779 {
2780 	int		i;
2781 	uint8_t		max_wait;
2782 	uint32_t	fw_ctrl;
2783 	uint32_t	fw_state;
2784 	uint32_t	cur_state;
2785 	uint32_t	cur_abs_reg_val;
2786 	uint32_t	prev_abs_reg_val;
2787 
2788 	cur_abs_reg_val =
2789 	    instance->func_ptr->read_fw_status_reg(instance);
2790 	fw_state =
2791 	    cur_abs_reg_val & MFI_STATE_MASK;
2792 	con_log(CL_ANN1, (CE_NOTE,
2793 	    "mfi_state_transition_to_ready:FW state = 0x%x", fw_state));
2794 
2795 	while (fw_state != MFI_STATE_READY) {
2796 		con_log(CL_ANN, (CE_NOTE,
2797 		    "mfi_state_transition_to_ready:FW state%x", fw_state));
2798 
2799 		switch (fw_state) {
2800 		case MFI_STATE_FAULT:
2801 			con_log(CL_ANN1, (CE_NOTE,
2802 			    "mr_sas: FW in FAULT state!!"));
2803 
2804 			return (ENODEV);
2805 		case MFI_STATE_WAIT_HANDSHAKE:
2806 			/* set the CLR bit in IMR0 */
2807 			con_log(CL_ANN1, (CE_NOTE,
2808 			    "mr_sas: FW waiting for HANDSHAKE"));
2809 			/*
2810 			 * PCI_Hot Plug: MFI F/W requires
2811 			 * (MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG)
2812 			 * to be set
2813 			 */
2814 			/* WR_IB_MSG_0(MFI_INIT_CLEAR_HANDSHAKE, instance); */
2815 			WR_IB_DOORBELL(MFI_INIT_CLEAR_HANDSHAKE |
2816 			    MFI_INIT_HOTPLUG, instance);
2817 
2818 			max_wait	= 2;
2819 			cur_state	= MFI_STATE_WAIT_HANDSHAKE;
2820 			break;
2821 		case MFI_STATE_BOOT_MESSAGE_PENDING:
2822 			/* set the CLR bit in IMR0 */
2823 			con_log(CL_ANN1, (CE_NOTE,
2824 			    "mr_sas: FW state boot message pending"));
2825 			/*
2826 			 * PCI_Hot Plug: MFI F/W requires
2827 			 * (MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG)
2828 			 * to be set
2829 			 */
2830 			WR_IB_DOORBELL(MFI_INIT_HOTPLUG, instance);
2831 
2832 			max_wait	= 10;
2833 			cur_state	= MFI_STATE_BOOT_MESSAGE_PENDING;
2834 			break;
2835 		case MFI_STATE_OPERATIONAL:
2836 			/* bring it to READY state; assuming max wait 2 secs */
2837 			instance->func_ptr->disable_intr(instance);
2838 			con_log(CL_ANN1, (CE_NOTE,
2839 			    "mr_sas: FW in OPERATIONAL state"));
2840 			/*
2841 			 * PCI_Hot Plug: MFI F/W requires
2842 			 * (MFI_INIT_READY | MFI_INIT_MFIMODE | MFI_INIT_ABORT)
2843 			 * to be set
2844 			 */
2845 			/* WR_IB_DOORBELL(MFI_INIT_READY, instance); */
2846 			WR_IB_DOORBELL(MFI_RESET_FLAGS, instance);
2847 
2848 			max_wait	= 10;
2849 			cur_state	= MFI_STATE_OPERATIONAL;
2850 			break;
2851 		case MFI_STATE_UNDEFINED:
2852 			/* this state should not last for more than 2 seconds */
2853 			con_log(CL_ANN1, (CE_NOTE, "FW state undefined"));
2854 
2855 			max_wait	= 2;
2856 			cur_state	= MFI_STATE_UNDEFINED;
2857 			break;
2858 		case MFI_STATE_BB_INIT:
2859 			max_wait	= 2;
2860 			cur_state	= MFI_STATE_BB_INIT;
2861 			break;
2862 		case MFI_STATE_FW_INIT:
2863 			max_wait	= 2;
2864 			cur_state	= MFI_STATE_FW_INIT;
2865 			break;
2866 		case MFI_STATE_DEVICE_SCAN:
2867 			max_wait	= 180;
2868 			cur_state	= MFI_STATE_DEVICE_SCAN;
2869 			prev_abs_reg_val = cur_abs_reg_val;
2870 			con_log(CL_NONE, (CE_NOTE,
2871 			    "Device scan in progress ...\n"));
2872 			break;
2873 		default:
2874 			con_log(CL_ANN1, (CE_NOTE,
2875 			    "mr_sas: Unknown state 0x%x", fw_state));
2876 			return (ENODEV);
2877 		}
2878 
2879 		/* the cur_state should not last for more than max_wait secs */
2880 		for (i = 0; i < (max_wait * MILLISEC); i++) {
2881 			/* fw_state = RD_OB_MSG_0(instance) & MFI_STATE_MASK; */
2882 			cur_abs_reg_val =
2883 			    instance->func_ptr->read_fw_status_reg(instance);
2884 			fw_state = cur_abs_reg_val & MFI_STATE_MASK;
2885 
2886 			if (fw_state == cur_state) {
2887 				delay(1 * drv_usectohz(MILLISEC));
2888 			} else {
2889 				break;
2890 			}
2891 		}
2892 		if (fw_state == MFI_STATE_DEVICE_SCAN) {
2893 			if (prev_abs_reg_val != cur_abs_reg_val) {
2894 				continue;
2895 			}
2896 		}
2897 
2898 		/* return error if fw_state hasn't changed after max_wait */
2899 		if (fw_state == cur_state) {
2900 			con_log(CL_ANN1, (CE_NOTE,
2901 			    "FW state hasn't changed in %d secs", max_wait));
2902 			return (ENODEV);
2903 		}
2904 	};
2905 
2906 	fw_ctrl = RD_IB_DOORBELL(instance);
2907 
2908 	con_log(CL_ANN1, (CE_NOTE,
2909 	    "mfi_state_transition_to_ready:FW ctrl = 0x%x", fw_ctrl));
2910 
2911 	/*
2912 	 * Write 0xF to the doorbell register to do the following.
2913 	 * - Abort all outstanding commands (bit 0).
2914 	 * - Transition from OPERATIONAL to READY state (bit 1).
2915 	 * - Discard (possible) low MFA posted in 64-bit mode (bit-2).
2916 	 * - Set to release FW to continue running (i.e. BIOS handshake
2917 	 *   (bit 3).
2918 	 */
2919 	WR_IB_DOORBELL(0xF, instance);
2920 
2921 	if (mrsas_check_acc_handle(instance->regmap_handle) != DDI_SUCCESS) {
2922 		return (ENODEV);
2923 	}
2924 	return (DDI_SUCCESS);
2925 }
2926 
2927 /*
2928  * get_seq_num
2929  */
2930 static int
2931 get_seq_num(struct mrsas_instance *instance,
2932     struct mrsas_evt_log_info *eli)
2933 {
2934 	int	ret = DDI_SUCCESS;
2935 
2936 	dma_obj_t			dcmd_dma_obj;
2937 	struct mrsas_cmd		*cmd;
2938 	struct mrsas_dcmd_frame		*dcmd;
2939 	struct mrsas_evt_log_info *eli_tmp;
2940 	cmd = get_mfi_pkt(instance);
2941 
2942 	if (!cmd) {
2943 		cmn_err(CE_WARN, "mr_sas: failed to get a cmd");
2944 		DTRACE_PROBE2(seq_num_mfi_err, uint16_t,
2945 		    instance->fw_outstanding, uint16_t, instance->max_fw_cmds);
2946 		return (ENOMEM);
2947 	}
2948 	cmd->retry_count_for_ocr = 0;
2949 	/* Clear the frame buffer and assign back the context id */
2950 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
2951 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
2952 	    cmd->index);
2953 
2954 	dcmd	= &cmd->frame->dcmd;
2955 
2956 	/* allocate the data transfer buffer */
2957 	dcmd_dma_obj.size = sizeof (struct mrsas_evt_log_info);
2958 	dcmd_dma_obj.dma_attr = mrsas_generic_dma_attr;
2959 	dcmd_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
2960 	dcmd_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
2961 	dcmd_dma_obj.dma_attr.dma_attr_sgllen = 1;
2962 	dcmd_dma_obj.dma_attr.dma_attr_align = 1;
2963 
2964 	if (mrsas_alloc_dma_obj(instance, &dcmd_dma_obj,
2965 	    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
2966 		con_log(CL_ANN, (CE_WARN,
2967 		    "get_seq_num: could not allocate data transfer buffer."));
2968 		return (DDI_FAILURE);
2969 	}
2970 
2971 	(void) memset(dcmd_dma_obj.buffer, 0,
2972 	    sizeof (struct mrsas_evt_log_info));
2973 
2974 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
2975 
2976 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
2977 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status, 0);
2978 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 1);
2979 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
2980 	    MFI_FRAME_DIR_READ);
2981 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
2982 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len,
2983 	    sizeof (struct mrsas_evt_log_info));
2984 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
2985 	    MR_DCMD_CTRL_EVENT_GET_INFO);
2986 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].length,
2987 	    sizeof (struct mrsas_evt_log_info));
2988 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].phys_addr,
2989 	    dcmd_dma_obj.dma_cookie[0].dmac_address);
2990 
2991 	cmd->sync_cmd = MRSAS_TRUE;
2992 	cmd->frame_count = 1;
2993 
2994 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
2995 		cmn_err(CE_WARN, "get_seq_num: "
2996 		    "failed to issue MRSAS_DCMD_CTRL_EVENT_GET_INFO");
2997 		ret = DDI_FAILURE;
2998 	} else {
2999 		eli_tmp = (struct mrsas_evt_log_info *)dcmd_dma_obj.buffer;
3000 		eli->newest_seq_num = ddi_get32(cmd->frame_dma_obj.acc_handle,
3001 		    &eli_tmp->newest_seq_num);
3002 		ret = DDI_SUCCESS;
3003 	}
3004 
3005 	if (mrsas_free_dma_obj(instance, dcmd_dma_obj) != DDI_SUCCESS)
3006 		ret = DDI_FAILURE;
3007 
3008 	if (mrsas_common_check(instance, cmd) != DDI_SUCCESS) {
3009 		ret = DDI_FAILURE;
3010 	}
3011 
3012 	return_mfi_pkt(instance, cmd);
3013 
3014 	return (ret);
3015 }
3016 
3017 /*
3018  * start_mfi_aen
3019  */
3020 static int
3021 start_mfi_aen(struct mrsas_instance *instance)
3022 {
3023 	int	ret = 0;
3024 
3025 	struct mrsas_evt_log_info	eli;
3026 	union mrsas_evt_class_locale	class_locale;
3027 
3028 	/* get the latest sequence number from FW */
3029 	(void) memset(&eli, 0, sizeof (struct mrsas_evt_log_info));
3030 
3031 	if (get_seq_num(instance, &eli)) {
3032 		cmn_err(CE_WARN, "start_mfi_aen: failed to get seq num");
3033 		return (-1);
3034 	}
3035 
3036 	/* register AEN with FW for latest sequence number plus 1 */
3037 	class_locale.members.reserved	= 0;
3038 	class_locale.members.locale	= LE_16(MR_EVT_LOCALE_ALL);
3039 	class_locale.members.class	= MR_EVT_CLASS_INFO;
3040 	class_locale.word	= LE_32(class_locale.word);
3041 	ret = register_mfi_aen(instance, eli.newest_seq_num + 1,
3042 	    class_locale.word);
3043 
3044 	if (ret) {
3045 		cmn_err(CE_WARN, "start_mfi_aen: aen registration failed");
3046 		return (-1);
3047 	}
3048 
3049 	return (ret);
3050 }
3051 
3052 /*
3053  * flush_cache
3054  */
3055 static void
3056 flush_cache(struct mrsas_instance *instance)
3057 {
3058 	struct mrsas_cmd		*cmd = NULL;
3059 	struct mrsas_dcmd_frame		*dcmd;
3060 	uint32_t	max_cmd = instance->max_fw_cmds;
3061 
3062 	cmd = instance->cmd_list[max_cmd];
3063 
3064 	if (!cmd) {
3065 		con_log(CL_ANN1, (CE_WARN,
3066 		    "flush_cache():Failed to get a cmd for flush_cache"));
3067 		DTRACE_PROBE2(flush_cache_err, uint16_t,
3068 		    instance->fw_outstanding, uint16_t, instance->max_fw_cmds);
3069 		return;
3070 	}
3071 	dcmd = &cmd->frame->dcmd;
3072 
3073 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
3074 
3075 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
3076 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status, 0x0);
3077 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 0);
3078 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
3079 	    MFI_FRAME_DIR_NONE);
3080 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
3081 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len, 0);
3082 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
3083 	    MR_DCMD_CTRL_CACHE_FLUSH);
3084 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->mbox.b[0],
3085 	    MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE);
3086 
3087 	cmd->frame_count = 1;
3088 
3089 	if (instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
3090 		con_log(CL_ANN1, (CE_WARN,
3091 	    "flush_cache: failed to issue MFI_DCMD_CTRL_CACHE_FLUSH"));
3092 	}
3093 	con_log(CL_ANN1, (CE_NOTE, "flush_cache done"));
3094 }
3095 
3096 /*
3097  * service_mfi_aen-	Completes an AEN command
3098  * @instance:			Adapter soft state
3099  * @cmd:			Command to be completed
3100  *
3101  */
3102 static void
3103 service_mfi_aen(struct mrsas_instance *instance, struct mrsas_cmd *cmd)
3104 {
3105 	uint32_t	seq_num;
3106 	struct mrsas_evt_detail *evt_detail =
3107 	    (struct mrsas_evt_detail *)instance->mfi_evt_detail_obj.buffer;
3108 	int		rval = 0;
3109 	int		tgt = 0;
3110 	ddi_acc_handle_t		acc_handle;
3111 
3112 	acc_handle = cmd->frame_dma_obj.acc_handle;
3113 
3114 	cmd->cmd_status = ddi_get8(acc_handle, &cmd->frame->io.cmd_status);
3115 
3116 	if (cmd->cmd_status == ENODATA) {
3117 		cmd->cmd_status = 0;
3118 	}
3119 
3120 	/*
3121 	 * log the MFI AEN event to the sysevent queue so that
3122 	 * application will get noticed
3123 	 */
3124 	if (ddi_log_sysevent(instance->dip, DDI_VENDOR_LSI, "LSIMEGA", "SAS",
3125 	    NULL, NULL, DDI_NOSLEEP) != DDI_SUCCESS) {
3126 		int	instance_no = ddi_get_instance(instance->dip);
3127 		con_log(CL_ANN, (CE_WARN,
3128 		    "mr_sas%d: Failed to log AEN event", instance_no));
3129 	}
3130 	/*
3131 	 * Check for any ld devices that has changed state. i.e. online
3132 	 * or offline.
3133 	 */
3134 	con_log(CL_ANN1, (CE_NOTE,
3135 	    "AEN: code = %x class = %x locale = %x args = %x",
3136 	    ddi_get32(acc_handle, &evt_detail->code),
3137 	    evt_detail->cl.members.class,
3138 	    ddi_get16(acc_handle, &evt_detail->cl.members.locale),
3139 	    ddi_get8(acc_handle, &evt_detail->arg_type)));
3140 
3141 	switch (ddi_get32(acc_handle, &evt_detail->code)) {
3142 	case MR_EVT_CFG_CLEARED: {
3143 		for (tgt = 0; tgt < MRDRV_MAX_LD; tgt++) {
3144 			if (instance->mr_ld_list[tgt].dip != NULL) {
3145 				rval = mrsas_service_evt(instance, tgt, 0,
3146 				    MRSAS_EVT_UNCONFIG_TGT, NULL);
3147 				con_log(CL_ANN1, (CE_WARN,
3148 				    "mr_sas: CFG CLEARED AEN rval = %d "
3149 				    "tgt id = %d", rval, tgt));
3150 			}
3151 		}
3152 		break;
3153 	}
3154 
3155 	case MR_EVT_LD_DELETED: {
3156 		rval = mrsas_service_evt(instance,
3157 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id), 0,
3158 		    MRSAS_EVT_UNCONFIG_TGT, NULL);
3159 		con_log(CL_ANN1, (CE_WARN, "mr_sas: LD DELETED AEN rval = %d "
3160 		    "tgt id = %d index = %d", rval,
3161 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id),
3162 		    ddi_get8(acc_handle, &evt_detail->args.ld.ld_index)));
3163 		break;
3164 	} /* End of MR_EVT_LD_DELETED */
3165 
3166 	case MR_EVT_LD_CREATED: {
3167 		rval = mrsas_service_evt(instance,
3168 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id), 0,
3169 		    MRSAS_EVT_CONFIG_TGT, NULL);
3170 		con_log(CL_ANN1, (CE_WARN, "mr_sas: LD CREATED AEN rval = %d "
3171 		    "tgt id = %d index = %d", rval,
3172 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id),
3173 		    ddi_get8(acc_handle, &evt_detail->args.ld.ld_index)));
3174 		break;
3175 	} /* End of MR_EVT_LD_CREATED */
3176 	} /* End of Main Switch */
3177 
3178 	/* get copy of seq_num and class/locale for re-registration */
3179 	seq_num = ddi_get32(acc_handle, &evt_detail->seq_num);
3180 	seq_num++;
3181 	(void) memset(instance->mfi_evt_detail_obj.buffer, 0,
3182 	    sizeof (struct mrsas_evt_detail));
3183 
3184 	ddi_put8(acc_handle, &cmd->frame->dcmd.cmd_status, 0x0);
3185 	ddi_put32(acc_handle, &cmd->frame->dcmd.mbox.w[0], seq_num);
3186 
3187 	instance->aen_seq_num = seq_num;
3188 
3189 	cmd->frame_count = 1;
3190 
3191 	/* Issue the aen registration frame */
3192 	instance->func_ptr->issue_cmd(cmd, instance);
3193 }
3194 
3195 /*
3196  * complete_cmd_in_sync_mode -	Completes an internal command
3197  * @instance:			Adapter soft state
3198  * @cmd:			Command to be completed
3199  *
3200  * The issue_cmd_in_sync_mode() function waits for a command to complete
3201  * after it issues a command. This function wakes up that waiting routine by
3202  * calling wake_up() on the wait queue.
3203  */
3204 static void
3205 complete_cmd_in_sync_mode(struct mrsas_instance *instance,
3206     struct mrsas_cmd *cmd)
3207 {
3208 	cmd->cmd_status = ddi_get8(cmd->frame_dma_obj.acc_handle,
3209 	    &cmd->frame->io.cmd_status);
3210 
3211 	cmd->sync_cmd = MRSAS_FALSE;
3212 
3213 	if (cmd->cmd_status == ENODATA) {
3214 		cmd->cmd_status = 0;
3215 	}
3216 
3217 	con_log(CL_ANN1, (CE_NOTE, "complete_cmd_in_sync_mode called %p \n",
3218 	    (void *)cmd));
3219 
3220 	cv_broadcast(&instance->int_cmd_cv);
3221 }
3222 
3223 /*
3224  * Call this function inside mrsas_softintr.
3225  * mrsas_initiate_ocr_if_fw_is_faulty  - Initiates OCR if FW status is faulty
3226  * @instance:			Adapter soft state
3227  */
3228 
3229 static uint32_t
3230 mrsas_initiate_ocr_if_fw_is_faulty(struct mrsas_instance *instance)
3231 {
3232 	uint32_t	cur_abs_reg_val;
3233 	uint32_t	fw_state;
3234 
3235 	cur_abs_reg_val =  instance->func_ptr->read_fw_status_reg(instance);
3236 	fw_state = cur_abs_reg_val & MFI_STATE_MASK;
3237 	if (fw_state == MFI_STATE_FAULT) {
3238 
3239 		if (instance->disable_online_ctrl_reset == 1) {
3240 		con_log(CL_ANN1, (CE_NOTE,
3241 		    "mrsas_initiate_ocr_if_fw_is_faulty: "
3242 		    "FW in Fault state, detected in ISR: "
3243 		    "FW doesn't support ocr "));
3244 		return (ADAPTER_RESET_NOT_REQUIRED);
3245 		} else {
3246 		con_log(CL_ANN1, (CE_NOTE,
3247 		    "mrsas_initiate_ocr_if_fw_is_faulty: "
3248 		    "FW in Fault state, detected in ISR: FW supports ocr "));
3249 			return (ADAPTER_RESET_REQUIRED);
3250 		}
3251 	}
3252 	return (ADAPTER_RESET_NOT_REQUIRED);
3253 }
3254 
3255 /*
3256  * mrsas_softintr - The Software ISR
3257  * @param arg	: HBA soft state
3258  *
3259  * called from high-level interrupt if hi-level interrupt are not there,
3260  * otherwise triggered as a soft interrupt
3261  */
3262 static uint_t
3263 mrsas_softintr(struct mrsas_instance *instance)
3264 {
3265 	struct scsi_pkt		*pkt;
3266 	struct scsa_cmd		*acmd;
3267 	struct mrsas_cmd	*cmd;
3268 	struct mlist_head	*pos, *next;
3269 	mlist_t			process_list;
3270 	struct mrsas_header	*hdr;
3271 	struct scsi_arq_status	*arqstat;
3272 
3273 	con_log(CL_ANN1, (CE_CONT, "mrsas_softintr called"));
3274 
3275 	ASSERT(instance);
3276 
3277 	mutex_enter(&instance->completed_pool_mtx);
3278 
3279 	if (mlist_empty(&instance->completed_pool_list)) {
3280 		mutex_exit(&instance->completed_pool_mtx);
3281 		return (DDI_INTR_CLAIMED);
3282 	}
3283 
3284 	instance->softint_running = 1;
3285 
3286 	INIT_LIST_HEAD(&process_list);
3287 	mlist_splice(&instance->completed_pool_list, &process_list);
3288 	INIT_LIST_HEAD(&instance->completed_pool_list);
3289 
3290 	mutex_exit(&instance->completed_pool_mtx);
3291 
3292 	/* perform all callbacks first, before releasing the SCBs */
3293 	mlist_for_each_safe(pos, next, &process_list) {
3294 		cmd = mlist_entry(pos, struct mrsas_cmd, list);
3295 
3296 		/* syncronize the Cmd frame for the controller */
3297 		(void) ddi_dma_sync(cmd->frame_dma_obj.dma_handle,
3298 		    0, 0, DDI_DMA_SYNC_FORCPU);
3299 
3300 		if (mrsas_check_dma_handle(cmd->frame_dma_obj.dma_handle) !=
3301 		    DDI_SUCCESS) {
3302 			mrsas_fm_ereport(instance, DDI_FM_DEVICE_NO_RESPONSE);
3303 			ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
3304 			con_log(CL_ANN1, (CE_WARN,
3305 			    "mrsas_softintr: "
3306 			    "FMA check reports DMA handle failure"));
3307 			return (DDI_INTR_CLAIMED);
3308 		}
3309 
3310 		hdr = &cmd->frame->hdr;
3311 
3312 		/* remove the internal command from the process list */
3313 		mlist_del_init(&cmd->list);
3314 
3315 		switch (ddi_get8(cmd->frame_dma_obj.acc_handle, &hdr->cmd)) {
3316 		case MFI_CMD_OP_PD_SCSI:
3317 		case MFI_CMD_OP_LD_SCSI:
3318 		case MFI_CMD_OP_LD_READ:
3319 		case MFI_CMD_OP_LD_WRITE:
3320 			/*
3321 			 * MFI_CMD_OP_PD_SCSI and MFI_CMD_OP_LD_SCSI
3322 			 * could have been issued either through an
3323 			 * IO path or an IOCTL path. If it was via IOCTL,
3324 			 * we will send it to internal completion.
3325 			 */
3326 			if (cmd->sync_cmd == MRSAS_TRUE) {
3327 				complete_cmd_in_sync_mode(instance, cmd);
3328 				break;
3329 			}
3330 
3331 			/* regular commands */
3332 			acmd =	cmd->cmd;
3333 			pkt =	CMD2PKT(acmd);
3334 
3335 			if (acmd->cmd_flags & CFLAG_DMAVALID) {
3336 				if (acmd->cmd_flags & CFLAG_CONSISTENT) {
3337 					(void) ddi_dma_sync(acmd->cmd_dmahandle,
3338 					    acmd->cmd_dma_offset,
3339 					    acmd->cmd_dma_len,
3340 					    DDI_DMA_SYNC_FORCPU);
3341 				}
3342 			}
3343 
3344 			pkt->pkt_reason		= CMD_CMPLT;
3345 			pkt->pkt_statistics	= 0;
3346 			pkt->pkt_state = STATE_GOT_BUS
3347 			    | STATE_GOT_TARGET | STATE_SENT_CMD
3348 			    | STATE_XFERRED_DATA | STATE_GOT_STATUS;
3349 
3350 			con_log(CL_ANN1, (CE_CONT,
3351 			    "CDB[0] = %x completed for %s: size %lx context %x",
3352 			    pkt->pkt_cdbp[0], ((acmd->islogical) ? "LD" : "PD"),
3353 			    acmd->cmd_dmacount, hdr->context));
3354 			DTRACE_PROBE3(softintr_cdb, uint8_t, pkt->pkt_cdbp[0],
3355 			    uint_t, acmd->cmd_cdblen, ulong_t,
3356 			    acmd->cmd_dmacount);
3357 
3358 			if (pkt->pkt_cdbp[0] == SCMD_INQUIRY) {
3359 				struct scsi_inquiry	*inq;
3360 
3361 				if (acmd->cmd_dmacount != 0) {
3362 					bp_mapin(acmd->cmd_buf);
3363 					inq = (struct scsi_inquiry *)
3364 					    acmd->cmd_buf->b_un.b_addr;
3365 
3366 					/* don't expose physical drives to OS */
3367 					if (acmd->islogical &&
3368 					    (hdr->cmd_status == MFI_STAT_OK)) {
3369 						display_scsi_inquiry(
3370 						    (caddr_t)inq);
3371 					} else if ((hdr->cmd_status ==
3372 					    MFI_STAT_OK) && inq->inq_dtype ==
3373 					    DTYPE_DIRECT) {
3374 
3375 						display_scsi_inquiry(
3376 						    (caddr_t)inq);
3377 
3378 						/* for physical disk */
3379 						hdr->cmd_status =
3380 						    MFI_STAT_DEVICE_NOT_FOUND;
3381 					}
3382 				}
3383 			}
3384 
3385 			DTRACE_PROBE2(softintr_done, uint8_t, hdr->cmd,
3386 			    uint8_t, hdr->cmd_status);
3387 
3388 			switch (hdr->cmd_status) {
3389 			case MFI_STAT_OK:
3390 				pkt->pkt_scbp[0] = STATUS_GOOD;
3391 				break;
3392 			case MFI_STAT_LD_CC_IN_PROGRESS:
3393 			case MFI_STAT_LD_RECON_IN_PROGRESS:
3394 				pkt->pkt_scbp[0] = STATUS_GOOD;
3395 				break;
3396 			case MFI_STAT_LD_INIT_IN_PROGRESS:
3397 				con_log(CL_ANN,
3398 				    (CE_WARN, "Initialization in Progress"));
3399 				pkt->pkt_reason	= CMD_TRAN_ERR;
3400 
3401 				break;
3402 			case MFI_STAT_SCSI_DONE_WITH_ERROR:
3403 				con_log(CL_ANN1, (CE_CONT, "scsi_done error"));
3404 
3405 				pkt->pkt_reason	= CMD_CMPLT;
3406 				((struct scsi_status *)
3407 				    pkt->pkt_scbp)->sts_chk = 1;
3408 
3409 				if (pkt->pkt_cdbp[0] == SCMD_TEST_UNIT_READY) {
3410 
3411 					con_log(CL_ANN,
3412 					    (CE_WARN, "TEST_UNIT_READY fail"));
3413 
3414 				} else {
3415 					pkt->pkt_state |= STATE_ARQ_DONE;
3416 					arqstat = (void *)(pkt->pkt_scbp);
3417 					arqstat->sts_rqpkt_reason = CMD_CMPLT;
3418 					arqstat->sts_rqpkt_resid = 0;
3419 					arqstat->sts_rqpkt_state |=
3420 					    STATE_GOT_BUS | STATE_GOT_TARGET
3421 					    | STATE_SENT_CMD
3422 					    | STATE_XFERRED_DATA;
3423 					*(uint8_t *)&arqstat->sts_rqpkt_status =
3424 					    STATUS_GOOD;
3425 					ddi_rep_get8(
3426 					    cmd->frame_dma_obj.acc_handle,
3427 					    (uint8_t *)
3428 					    &(arqstat->sts_sensedata),
3429 					    cmd->sense,
3430 					    acmd->cmd_scblen -
3431 					    offsetof(struct scsi_arq_status,
3432 					    sts_sensedata), DDI_DEV_AUTOINCR);
3433 			}
3434 				break;
3435 			case MFI_STAT_LD_OFFLINE:
3436 			case MFI_STAT_DEVICE_NOT_FOUND:
3437 				con_log(CL_ANN1, (CE_CONT,
3438 				"mrsas_softintr:device not found error"));
3439 				pkt->pkt_reason	= CMD_DEV_GONE;
3440 				pkt->pkt_statistics  = STAT_DISCON;
3441 				break;
3442 			case MFI_STAT_LD_LBA_OUT_OF_RANGE:
3443 				pkt->pkt_state |= STATE_ARQ_DONE;
3444 				pkt->pkt_reason	= CMD_CMPLT;
3445 				((struct scsi_status *)
3446 				    pkt->pkt_scbp)->sts_chk = 1;
3447 
3448 				arqstat = (void *)(pkt->pkt_scbp);
3449 				arqstat->sts_rqpkt_reason = CMD_CMPLT;
3450 				arqstat->sts_rqpkt_resid = 0;
3451 				arqstat->sts_rqpkt_state |= STATE_GOT_BUS
3452 				    | STATE_GOT_TARGET | STATE_SENT_CMD
3453 				    | STATE_XFERRED_DATA;
3454 				*(uint8_t *)&arqstat->sts_rqpkt_status =
3455 				    STATUS_GOOD;
3456 
3457 				arqstat->sts_sensedata.es_valid = 1;
3458 				arqstat->sts_sensedata.es_key =
3459 				    KEY_ILLEGAL_REQUEST;
3460 				arqstat->sts_sensedata.es_class =
3461 				    CLASS_EXTENDED_SENSE;
3462 
3463 				/*
3464 				 * LOGICAL BLOCK ADDRESS OUT OF RANGE:
3465 				 * ASC: 0x21h; ASCQ: 0x00h;
3466 				 */
3467 				arqstat->sts_sensedata.es_add_code = 0x21;
3468 				arqstat->sts_sensedata.es_qual_code = 0x00;
3469 
3470 				break;
3471 
3472 			default:
3473 				con_log(CL_ANN, (CE_CONT, "Unknown status!"));
3474 				pkt->pkt_reason	= CMD_TRAN_ERR;
3475 
3476 				break;
3477 			}
3478 
3479 			atomic_add_16(&instance->fw_outstanding, (-1));
3480 
3481 			(void) mrsas_common_check(instance, cmd);
3482 
3483 			if (acmd->cmd_dmahandle) {
3484 				if (mrsas_check_dma_handle(
3485 				    acmd->cmd_dmahandle) != DDI_SUCCESS) {
3486 					ddi_fm_service_impact(instance->dip,
3487 					    DDI_SERVICE_UNAFFECTED);
3488 					pkt->pkt_reason = CMD_TRAN_ERR;
3489 					pkt->pkt_statistics = 0;
3490 				}
3491 			}
3492 
3493 			/* Call the callback routine */
3494 			if (((pkt->pkt_flags & FLAG_NOINTR) == 0) &&
3495 			    pkt->pkt_comp) {
3496 
3497 				con_log(CL_ANN1, (CE_NOTE, "mrsas_softintr: "
3498 				    "posting to scsa cmd %p index %x pkt %p "
3499 				    "time %llx", (void *)cmd, cmd->index,
3500 				    (void *)pkt, gethrtime()));
3501 				(*pkt->pkt_comp)(pkt);
3502 
3503 			}
3504 			return_mfi_pkt(instance, cmd);
3505 			break;
3506 		case MFI_CMD_OP_SMP:
3507 		case MFI_CMD_OP_STP:
3508 			complete_cmd_in_sync_mode(instance, cmd);
3509 			break;
3510 		case MFI_CMD_OP_DCMD:
3511 			/* see if got an event notification */
3512 			if (ddi_get32(cmd->frame_dma_obj.acc_handle,
3513 			    &cmd->frame->dcmd.opcode) ==
3514 			    MR_DCMD_CTRL_EVENT_WAIT) {
3515 				if ((instance->aen_cmd == cmd) &&
3516 				    (instance->aen_cmd->abort_aen)) {
3517 					con_log(CL_ANN, (CE_WARN,
3518 					    "mrsas_softintr: "
3519 					    "aborted_aen returned"));
3520 				} else {
3521 					atomic_add_16(&instance->fw_outstanding,
3522 					    (-1));
3523 					service_mfi_aen(instance, cmd);
3524 				}
3525 			} else {
3526 				complete_cmd_in_sync_mode(instance, cmd);
3527 			}
3528 
3529 			break;
3530 		case MFI_CMD_OP_ABORT:
3531 			con_log(CL_ANN, (CE_WARN, "MFI_CMD_OP_ABORT complete"));
3532 			/*
3533 			 * MFI_CMD_OP_ABORT successfully completed
3534 			 * in the synchronous mode
3535 			 */
3536 			complete_cmd_in_sync_mode(instance, cmd);
3537 			break;
3538 		default:
3539 			mrsas_fm_ereport(instance, DDI_FM_DEVICE_NO_RESPONSE);
3540 			ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
3541 
3542 			if (cmd->pkt != NULL) {
3543 				pkt = cmd->pkt;
3544 				if (((pkt->pkt_flags & FLAG_NOINTR) == 0) &&
3545 				    pkt->pkt_comp) {
3546 
3547 					con_log(CL_ANN1, (CE_CONT, "posting to "
3548 					    "scsa cmd %p index %x pkt %p"
3549 					    "time %llx, default ", (void *)cmd,
3550 					    cmd->index, (void *)pkt,
3551 					    gethrtime()));
3552 
3553 					(*pkt->pkt_comp)(pkt);
3554 
3555 				}
3556 			}
3557 			con_log(CL_ANN, (CE_WARN, "Cmd type unknown !"));
3558 			break;
3559 		}
3560 	}
3561 
3562 	instance->softint_running = 0;
3563 
3564 	return (DDI_INTR_CLAIMED);
3565 }
3566 
3567 /*
3568  * mrsas_alloc_dma_obj
3569  *
3570  * Allocate the memory and other resources for an dma object.
3571  */
3572 static int
3573 mrsas_alloc_dma_obj(struct mrsas_instance *instance, dma_obj_t *obj,
3574     uchar_t endian_flags)
3575 {
3576 	int	i;
3577 	size_t	alen = 0;
3578 	uint_t	cookie_cnt;
3579 	struct ddi_device_acc_attr tmp_endian_attr;
3580 
3581 	tmp_endian_attr = endian_attr;
3582 	tmp_endian_attr.devacc_attr_endian_flags = endian_flags;
3583 	tmp_endian_attr.devacc_attr_access = DDI_DEFAULT_ACC;
3584 
3585 	i = ddi_dma_alloc_handle(instance->dip, &obj->dma_attr,
3586 	    DDI_DMA_SLEEP, NULL, &obj->dma_handle);
3587 	if (i != DDI_SUCCESS) {
3588 
3589 		switch (i) {
3590 			case DDI_DMA_BADATTR :
3591 				con_log(CL_ANN, (CE_WARN,
3592 				"Failed ddi_dma_alloc_handle- Bad attribute"));
3593 				break;
3594 			case DDI_DMA_NORESOURCES :
3595 				con_log(CL_ANN, (CE_WARN,
3596 				"Failed ddi_dma_alloc_handle- No Resources"));
3597 				break;
3598 			default :
3599 				con_log(CL_ANN, (CE_WARN,
3600 				"Failed ddi_dma_alloc_handle: "
3601 				"unknown status %d", i));
3602 				break;
3603 		}
3604 
3605 		return (-1);
3606 	}
3607 
3608 	if ((ddi_dma_mem_alloc(obj->dma_handle, obj->size, &tmp_endian_attr,
3609 	    DDI_DMA_RDWR | DDI_DMA_STREAMING, DDI_DMA_SLEEP, NULL,
3610 	    &obj->buffer, &alen, &obj->acc_handle) != DDI_SUCCESS) ||
3611 	    alen < obj->size) {
3612 
3613 		ddi_dma_free_handle(&obj->dma_handle);
3614 
3615 		con_log(CL_ANN, (CE_WARN, "Failed : ddi_dma_mem_alloc"));
3616 
3617 		return (-1);
3618 	}
3619 
3620 	if (ddi_dma_addr_bind_handle(obj->dma_handle, NULL, obj->buffer,
3621 	    obj->size, DDI_DMA_RDWR | DDI_DMA_STREAMING, DDI_DMA_SLEEP,
3622 	    NULL, &obj->dma_cookie[0], &cookie_cnt) != DDI_SUCCESS) {
3623 
3624 		ddi_dma_mem_free(&obj->acc_handle);
3625 		ddi_dma_free_handle(&obj->dma_handle);
3626 
3627 		con_log(CL_ANN, (CE_WARN, "Failed : ddi_dma_addr_bind_handle"));
3628 
3629 		return (-1);
3630 	}
3631 
3632 	if (mrsas_check_dma_handle(obj->dma_handle) != DDI_SUCCESS) {
3633 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
3634 		return (-1);
3635 	}
3636 
3637 	if (mrsas_check_acc_handle(obj->acc_handle) != DDI_SUCCESS) {
3638 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
3639 		return (-1);
3640 	}
3641 
3642 	return (cookie_cnt);
3643 }
3644 
3645 /*
3646  * mrsas_free_dma_obj(struct mrsas_instance *, dma_obj_t)
3647  *
3648  * De-allocate the memory and other resources for an dma object, which must
3649  * have been alloated by a previous call to mrsas_alloc_dma_obj()
3650  */
3651 static int
3652 mrsas_free_dma_obj(struct mrsas_instance *instance, dma_obj_t obj)
3653 {
3654 
3655 	if (mrsas_check_dma_handle(obj.dma_handle) != DDI_SUCCESS) {
3656 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
3657 		return (DDI_FAILURE);
3658 	}
3659 
3660 	if (mrsas_check_acc_handle(obj.acc_handle) != DDI_SUCCESS) {
3661 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
3662 		return (DDI_FAILURE);
3663 	}
3664 
3665 	(void) ddi_dma_unbind_handle(obj.dma_handle);
3666 	ddi_dma_mem_free(&obj.acc_handle);
3667 	ddi_dma_free_handle(&obj.dma_handle);
3668 
3669 	return (DDI_SUCCESS);
3670 }
3671 
3672 /*
3673  * mrsas_dma_alloc(instance_t *, struct scsi_pkt *, struct buf *,
3674  * int, int (*)())
3675  *
3676  * Allocate dma resources for a new scsi command
3677  */
3678 static int
3679 mrsas_dma_alloc(struct mrsas_instance *instance, struct scsi_pkt *pkt,
3680     struct buf *bp, int flags, int (*callback)())
3681 {
3682 	int	dma_flags;
3683 	int	(*cb)(caddr_t);
3684 	int	i;
3685 
3686 	ddi_dma_attr_t	tmp_dma_attr = mrsas_generic_dma_attr;
3687 	struct scsa_cmd	*acmd = PKT2CMD(pkt);
3688 
3689 	acmd->cmd_buf = bp;
3690 
3691 	if (bp->b_flags & B_READ) {
3692 		acmd->cmd_flags &= ~CFLAG_DMASEND;
3693 		dma_flags = DDI_DMA_READ;
3694 	} else {
3695 		acmd->cmd_flags |= CFLAG_DMASEND;
3696 		dma_flags = DDI_DMA_WRITE;
3697 	}
3698 
3699 	if (flags & PKT_CONSISTENT) {
3700 		acmd->cmd_flags |= CFLAG_CONSISTENT;
3701 		dma_flags |= DDI_DMA_CONSISTENT;
3702 	}
3703 
3704 	if (flags & PKT_DMA_PARTIAL) {
3705 		dma_flags |= DDI_DMA_PARTIAL;
3706 	}
3707 
3708 	dma_flags |= DDI_DMA_REDZONE;
3709 
3710 	cb = (callback == NULL_FUNC) ? DDI_DMA_DONTWAIT : DDI_DMA_SLEEP;
3711 
3712 	tmp_dma_attr.dma_attr_sgllen = instance->max_num_sge;
3713 	tmp_dma_attr.dma_attr_addr_hi = 0xffffffffffffffffull;
3714 
3715 	if ((i = ddi_dma_alloc_handle(instance->dip, &tmp_dma_attr,
3716 	    cb, 0, &acmd->cmd_dmahandle)) != DDI_SUCCESS) {
3717 		switch (i) {
3718 		case DDI_DMA_BADATTR:
3719 			bioerror(bp, EFAULT);
3720 			return (DDI_FAILURE);
3721 
3722 		case DDI_DMA_NORESOURCES:
3723 			bioerror(bp, 0);
3724 			return (DDI_FAILURE);
3725 
3726 		default:
3727 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_alloc_handle: "
3728 			    "impossible result (0x%x)", i));
3729 			bioerror(bp, EFAULT);
3730 			return (DDI_FAILURE);
3731 		}
3732 	}
3733 
3734 	i = ddi_dma_buf_bind_handle(acmd->cmd_dmahandle, bp, dma_flags,
3735 	    cb, 0, &acmd->cmd_dmacookies[0], &acmd->cmd_ncookies);
3736 
3737 	switch (i) {
3738 	case DDI_DMA_PARTIAL_MAP:
3739 		if ((dma_flags & DDI_DMA_PARTIAL) == 0) {
3740 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_buf_bind_handle: "
3741 			    "DDI_DMA_PARTIAL_MAP impossible"));
3742 			goto no_dma_cookies;
3743 		}
3744 
3745 		if (ddi_dma_numwin(acmd->cmd_dmahandle, &acmd->cmd_nwin) ==
3746 		    DDI_FAILURE) {
3747 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_numwin failed"));
3748 			goto no_dma_cookies;
3749 		}
3750 
3751 		if (ddi_dma_getwin(acmd->cmd_dmahandle, acmd->cmd_curwin,
3752 		    &acmd->cmd_dma_offset, &acmd->cmd_dma_len,
3753 		    &acmd->cmd_dmacookies[0], &acmd->cmd_ncookies) ==
3754 		    DDI_FAILURE) {
3755 
3756 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_getwin failed"));
3757 			goto no_dma_cookies;
3758 		}
3759 
3760 		goto get_dma_cookies;
3761 	case DDI_DMA_MAPPED:
3762 		acmd->cmd_nwin = 1;
3763 		acmd->cmd_dma_len = 0;
3764 		acmd->cmd_dma_offset = 0;
3765 
3766 get_dma_cookies:
3767 		i = 0;
3768 		acmd->cmd_dmacount = 0;
3769 		for (;;) {
3770 			acmd->cmd_dmacount +=
3771 			    acmd->cmd_dmacookies[i++].dmac_size;
3772 
3773 			if (i == instance->max_num_sge ||
3774 			    i == acmd->cmd_ncookies)
3775 				break;
3776 
3777 			ddi_dma_nextcookie(acmd->cmd_dmahandle,
3778 			    &acmd->cmd_dmacookies[i]);
3779 		}
3780 
3781 		acmd->cmd_cookie = i;
3782 		acmd->cmd_cookiecnt = i;
3783 
3784 		acmd->cmd_flags |= CFLAG_DMAVALID;
3785 
3786 		if (bp->b_bcount >= acmd->cmd_dmacount) {
3787 			pkt->pkt_resid = bp->b_bcount - acmd->cmd_dmacount;
3788 		} else {
3789 			pkt->pkt_resid = 0;
3790 		}
3791 
3792 		return (DDI_SUCCESS);
3793 	case DDI_DMA_NORESOURCES:
3794 		bioerror(bp, 0);
3795 		break;
3796 	case DDI_DMA_NOMAPPING:
3797 		bioerror(bp, EFAULT);
3798 		break;
3799 	case DDI_DMA_TOOBIG:
3800 		bioerror(bp, EINVAL);
3801 		break;
3802 	case DDI_DMA_INUSE:
3803 		con_log(CL_ANN, (CE_PANIC, "ddi_dma_buf_bind_handle:"
3804 		    " DDI_DMA_INUSE impossible"));
3805 		break;
3806 	default:
3807 		con_log(CL_ANN, (CE_PANIC, "ddi_dma_buf_bind_handle: "
3808 		    "impossible result (0x%x)", i));
3809 		break;
3810 	}
3811 
3812 no_dma_cookies:
3813 	ddi_dma_free_handle(&acmd->cmd_dmahandle);
3814 	acmd->cmd_dmahandle = NULL;
3815 	acmd->cmd_flags &= ~CFLAG_DMAVALID;
3816 	return (DDI_FAILURE);
3817 }
3818 
3819 /*
3820  * mrsas_dma_move(struct mrsas_instance *, struct scsi_pkt *, struct buf *)
3821  *
3822  * move dma resources to next dma window
3823  *
3824  */
3825 static int
3826 mrsas_dma_move(struct mrsas_instance *instance, struct scsi_pkt *pkt,
3827     struct buf *bp)
3828 {
3829 	int	i = 0;
3830 
3831 	struct scsa_cmd	*acmd = PKT2CMD(pkt);
3832 
3833 	/*
3834 	 * If there are no more cookies remaining in this window,
3835 	 * must move to the next window first.
3836 	 */
3837 	if (acmd->cmd_cookie == acmd->cmd_ncookies) {
3838 		if (acmd->cmd_curwin == acmd->cmd_nwin && acmd->cmd_nwin == 1) {
3839 			return (DDI_SUCCESS);
3840 		}
3841 
3842 		/* at last window, cannot move */
3843 		if (++acmd->cmd_curwin >= acmd->cmd_nwin) {
3844 			return (DDI_FAILURE);
3845 		}
3846 
3847 		if (ddi_dma_getwin(acmd->cmd_dmahandle, acmd->cmd_curwin,
3848 		    &acmd->cmd_dma_offset, &acmd->cmd_dma_len,
3849 		    &acmd->cmd_dmacookies[0], &acmd->cmd_ncookies) ==
3850 		    DDI_FAILURE) {
3851 			return (DDI_FAILURE);
3852 		}
3853 
3854 		acmd->cmd_cookie = 0;
3855 	} else {
3856 		/* still more cookies in this window - get the next one */
3857 		ddi_dma_nextcookie(acmd->cmd_dmahandle,
3858 		    &acmd->cmd_dmacookies[0]);
3859 	}
3860 
3861 	/* get remaining cookies in this window, up to our maximum */
3862 	for (;;) {
3863 		acmd->cmd_dmacount += acmd->cmd_dmacookies[i++].dmac_size;
3864 		acmd->cmd_cookie++;
3865 
3866 		if (i == instance->max_num_sge ||
3867 		    acmd->cmd_cookie == acmd->cmd_ncookies) {
3868 			break;
3869 		}
3870 
3871 		ddi_dma_nextcookie(acmd->cmd_dmahandle,
3872 		    &acmd->cmd_dmacookies[i]);
3873 	}
3874 
3875 	acmd->cmd_cookiecnt = i;
3876 
3877 	if (bp->b_bcount >= acmd->cmd_dmacount) {
3878 		pkt->pkt_resid = bp->b_bcount - acmd->cmd_dmacount;
3879 	} else {
3880 		pkt->pkt_resid = 0;
3881 	}
3882 
3883 	return (DDI_SUCCESS);
3884 }
3885 
3886 /*
3887  * build_cmd
3888  */
3889 static struct mrsas_cmd *
3890 build_cmd(struct mrsas_instance *instance, struct scsi_address *ap,
3891     struct scsi_pkt *pkt, uchar_t *cmd_done)
3892 {
3893 	uint16_t	flags = 0;
3894 	uint32_t	i;
3895 	uint32_t 	context;
3896 	uint32_t	sge_bytes;
3897 	ddi_acc_handle_t acc_handle;
3898 	struct mrsas_cmd		*cmd;
3899 	struct mrsas_sge64		*mfi_sgl;
3900 	struct mrsas_sge_ieee		*mfi_sgl_ieee;
3901 	struct scsa_cmd			*acmd = PKT2CMD(pkt);
3902 	struct mrsas_pthru_frame 	*pthru;
3903 	struct mrsas_io_frame		*ldio;
3904 
3905 	/* find out if this is logical or physical drive command.  */
3906 	acmd->islogical = MRDRV_IS_LOGICAL(ap);
3907 	acmd->device_id = MAP_DEVICE_ID(instance, ap);
3908 	*cmd_done = 0;
3909 
3910 	/* get the command packet */
3911 	if (!(cmd = get_mfi_pkt(instance))) {
3912 		DTRACE_PROBE2(build_cmd_mfi_err, uint16_t,
3913 		    instance->fw_outstanding, uint16_t, instance->max_fw_cmds);
3914 		return (NULL);
3915 	}
3916 
3917 	cmd->retry_count_for_ocr = 0;
3918 
3919 	acc_handle = cmd->frame_dma_obj.acc_handle;
3920 
3921 	/* Clear the frame buffer and assign back the context id */
3922 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
3923 	ddi_put32(acc_handle, &cmd->frame->hdr.context, cmd->index);
3924 
3925 	cmd->pkt = pkt;
3926 	cmd->cmd = acmd;
3927 	DTRACE_PROBE3(build_cmds, uint8_t, pkt->pkt_cdbp[0],
3928 	    ulong_t, acmd->cmd_dmacount, ulong_t, acmd->cmd_dma_len);
3929 
3930 	/* lets get the command directions */
3931 	if (acmd->cmd_flags & CFLAG_DMASEND) {
3932 		flags = MFI_FRAME_DIR_WRITE;
3933 
3934 		if (acmd->cmd_flags & CFLAG_CONSISTENT) {
3935 			(void) ddi_dma_sync(acmd->cmd_dmahandle,
3936 			    acmd->cmd_dma_offset, acmd->cmd_dma_len,
3937 			    DDI_DMA_SYNC_FORDEV);
3938 		}
3939 	} else if (acmd->cmd_flags & ~CFLAG_DMASEND) {
3940 		flags = MFI_FRAME_DIR_READ;
3941 
3942 		if (acmd->cmd_flags & CFLAG_CONSISTENT) {
3943 			(void) ddi_dma_sync(acmd->cmd_dmahandle,
3944 			    acmd->cmd_dma_offset, acmd->cmd_dma_len,
3945 			    DDI_DMA_SYNC_FORCPU);
3946 		}
3947 	} else {
3948 		flags = MFI_FRAME_DIR_NONE;
3949 	}
3950 
3951 	if (instance->flag_ieee) {
3952 		flags |= MFI_FRAME_IEEE;
3953 	}
3954 	flags |= MFI_FRAME_SGL64;
3955 
3956 	switch (pkt->pkt_cdbp[0]) {
3957 
3958 	/*
3959 	 * case SCMD_SYNCHRONIZE_CACHE:
3960 	 * 	flush_cache(instance);
3961 	 *	return_mfi_pkt(instance, cmd);
3962 	 *	*cmd_done = 1;
3963 	 *
3964 	 *	return (NULL);
3965 	 */
3966 
3967 	case SCMD_READ:
3968 	case SCMD_WRITE:
3969 	case SCMD_READ_G1:
3970 	case SCMD_WRITE_G1:
3971 		if (acmd->islogical) {
3972 			ldio = (struct mrsas_io_frame *)cmd->frame;
3973 
3974 			/*
3975 			 * preare the Logical IO frame:
3976 			 * 2nd bit is zero for all read cmds
3977 			 */
3978 			ddi_put8(acc_handle, &ldio->cmd,
3979 			    (pkt->pkt_cdbp[0] & 0x02) ? MFI_CMD_OP_LD_WRITE
3980 			    : MFI_CMD_OP_LD_READ);
3981 			ddi_put8(acc_handle, &ldio->cmd_status, 0x0);
3982 			ddi_put8(acc_handle, &ldio->scsi_status, 0x0);
3983 			ddi_put8(acc_handle, &ldio->target_id, acmd->device_id);
3984 			ddi_put16(acc_handle, &ldio->timeout, 0);
3985 			ddi_put8(acc_handle, &ldio->reserved_0, 0);
3986 			ddi_put16(acc_handle, &ldio->pad_0, 0);
3987 			ddi_put16(acc_handle, &ldio->flags, flags);
3988 
3989 			/* Initialize sense Information */
3990 			bzero(cmd->sense, SENSE_LENGTH);
3991 			ddi_put8(acc_handle, &ldio->sense_len, SENSE_LENGTH);
3992 			ddi_put32(acc_handle, &ldio->sense_buf_phys_addr_hi, 0);
3993 			ddi_put32(acc_handle, &ldio->sense_buf_phys_addr_lo,
3994 			    cmd->sense_phys_addr);
3995 			ddi_put32(acc_handle, &ldio->start_lba_hi, 0);
3996 			ddi_put8(acc_handle, &ldio->access_byte,
3997 			    (acmd->cmd_cdblen != 6) ? pkt->pkt_cdbp[1] : 0);
3998 			ddi_put8(acc_handle, &ldio->sge_count,
3999 			    acmd->cmd_cookiecnt);
4000 			if (instance->flag_ieee) {
4001 				mfi_sgl_ieee =
4002 				    (struct mrsas_sge_ieee *)&ldio->sgl;
4003 			} else {
4004 				mfi_sgl = (struct mrsas_sge64	*)&ldio->sgl;
4005 			}
4006 
4007 			context = ddi_get32(acc_handle, &ldio->context);
4008 
4009 			if (acmd->cmd_cdblen == CDB_GROUP0) {
4010 				ddi_put32(acc_handle, &ldio->lba_count, (
4011 				    (uint16_t)(pkt->pkt_cdbp[4])));
4012 
4013 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
4014 				    ((uint32_t)(pkt->pkt_cdbp[3])) |
4015 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 8) |
4016 				    ((uint32_t)((pkt->pkt_cdbp[1]) & 0x1F)
4017 				    << 16)));
4018 			} else if (acmd->cmd_cdblen == CDB_GROUP1) {
4019 				ddi_put32(acc_handle, &ldio->lba_count, (
4020 				    ((uint16_t)(pkt->pkt_cdbp[8])) |
4021 				    ((uint16_t)(pkt->pkt_cdbp[7]) << 8)));
4022 
4023 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
4024 				    ((uint32_t)(pkt->pkt_cdbp[5])) |
4025 				    ((uint32_t)(pkt->pkt_cdbp[4]) << 8) |
4026 				    ((uint32_t)(pkt->pkt_cdbp[3]) << 16) |
4027 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 24)));
4028 			} else if (acmd->cmd_cdblen == CDB_GROUP2) {
4029 				ddi_put32(acc_handle, &ldio->lba_count, (
4030 				    ((uint16_t)(pkt->pkt_cdbp[9])) |
4031 				    ((uint16_t)(pkt->pkt_cdbp[8]) << 8) |
4032 				    ((uint16_t)(pkt->pkt_cdbp[7]) << 16) |
4033 				    ((uint16_t)(pkt->pkt_cdbp[6]) << 24)));
4034 
4035 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
4036 				    ((uint32_t)(pkt->pkt_cdbp[5])) |
4037 				    ((uint32_t)(pkt->pkt_cdbp[4]) << 8) |
4038 				    ((uint32_t)(pkt->pkt_cdbp[3]) << 16) |
4039 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 24)));
4040 			} else if (acmd->cmd_cdblen == CDB_GROUP3) {
4041 				ddi_put32(acc_handle, &ldio->lba_count, (
4042 				    ((uint16_t)(pkt->pkt_cdbp[13])) |
4043 				    ((uint16_t)(pkt->pkt_cdbp[12]) << 8) |
4044 				    ((uint16_t)(pkt->pkt_cdbp[11]) << 16) |
4045 				    ((uint16_t)(pkt->pkt_cdbp[10]) << 24)));
4046 
4047 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
4048 				    ((uint32_t)(pkt->pkt_cdbp[9])) |
4049 				    ((uint32_t)(pkt->pkt_cdbp[8]) << 8) |
4050 				    ((uint32_t)(pkt->pkt_cdbp[7]) << 16) |
4051 				    ((uint32_t)(pkt->pkt_cdbp[6]) << 24)));
4052 
4053 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
4054 				    ((uint32_t)(pkt->pkt_cdbp[5])) |
4055 				    ((uint32_t)(pkt->pkt_cdbp[4]) << 8) |
4056 				    ((uint32_t)(pkt->pkt_cdbp[3]) << 16) |
4057 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 24)));
4058 			}
4059 
4060 			break;
4061 		}
4062 		/* fall through For all non-rd/wr cmds */
4063 	default:
4064 
4065 		switch (pkt->pkt_cdbp[0]) {
4066 		case SCMD_MODE_SENSE:
4067 		case SCMD_MODE_SENSE_G1: {
4068 			union scsi_cdb	*cdbp;
4069 			uint16_t	page_code;
4070 
4071 			cdbp = (void *)pkt->pkt_cdbp;
4072 			page_code = (uint16_t)cdbp->cdb_un.sg.scsi[0];
4073 			switch (page_code) {
4074 			case 0x3:
4075 			case 0x4:
4076 				(void) mrsas_mode_sense_build(pkt);
4077 				return_mfi_pkt(instance, cmd);
4078 				*cmd_done = 1;
4079 				return (NULL);
4080 			}
4081 			break;
4082 		}
4083 		default:
4084 			break;
4085 		}
4086 
4087 		pthru	= (struct mrsas_pthru_frame *)cmd->frame;
4088 
4089 		/* prepare the DCDB frame */
4090 		ddi_put8(acc_handle, &pthru->cmd, (acmd->islogical) ?
4091 		    MFI_CMD_OP_LD_SCSI : MFI_CMD_OP_PD_SCSI);
4092 		ddi_put8(acc_handle, &pthru->cmd_status, 0x0);
4093 		ddi_put8(acc_handle, &pthru->scsi_status, 0x0);
4094 		ddi_put8(acc_handle, &pthru->target_id, acmd->device_id);
4095 		ddi_put8(acc_handle, &pthru->lun, 0);
4096 		ddi_put8(acc_handle, &pthru->cdb_len, acmd->cmd_cdblen);
4097 		ddi_put16(acc_handle, &pthru->timeout, 0);
4098 		ddi_put16(acc_handle, &pthru->flags, flags);
4099 		ddi_put32(acc_handle, &pthru->data_xfer_len,
4100 		    acmd->cmd_dmacount);
4101 		ddi_put8(acc_handle, &pthru->sge_count, acmd->cmd_cookiecnt);
4102 		if (instance->flag_ieee) {
4103 			mfi_sgl_ieee = (struct mrsas_sge_ieee *)&pthru->sgl;
4104 		} else {
4105 			mfi_sgl	= (struct mrsas_sge64 *)&pthru->sgl;
4106 		}
4107 
4108 		bzero(cmd->sense, SENSE_LENGTH);
4109 		ddi_put8(acc_handle, &pthru->sense_len, SENSE_LENGTH);
4110 		ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_hi, 0);
4111 		ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_lo,
4112 		    cmd->sense_phys_addr);
4113 
4114 		context = ddi_get32(acc_handle, &pthru->context);
4115 		ddi_rep_put8(acc_handle, (uint8_t *)pkt->pkt_cdbp,
4116 		    (uint8_t *)pthru->cdb, acmd->cmd_cdblen, DDI_DEV_AUTOINCR);
4117 
4118 		break;
4119 	}
4120 #ifdef lint
4121 	context = context;
4122 #endif
4123 	/* prepare the scatter-gather list for the firmware */
4124 	if (instance->flag_ieee) {
4125 		for (i = 0; i < acmd->cmd_cookiecnt; i++, mfi_sgl_ieee++) {
4126 			ddi_put64(acc_handle, &mfi_sgl_ieee->phys_addr,
4127 			    acmd->cmd_dmacookies[i].dmac_laddress);
4128 			ddi_put32(acc_handle, &mfi_sgl_ieee->length,
4129 			    acmd->cmd_dmacookies[i].dmac_size);
4130 		}
4131 		sge_bytes = sizeof (struct mrsas_sge_ieee)*acmd->cmd_cookiecnt;
4132 	} else {
4133 		for (i = 0; i < acmd->cmd_cookiecnt; i++, mfi_sgl++) {
4134 			ddi_put64(acc_handle, &mfi_sgl->phys_addr,
4135 			    acmd->cmd_dmacookies[i].dmac_laddress);
4136 			ddi_put32(acc_handle, &mfi_sgl->length,
4137 			    acmd->cmd_dmacookies[i].dmac_size);
4138 		}
4139 		sge_bytes = sizeof (struct mrsas_sge64)*acmd->cmd_cookiecnt;
4140 	}
4141 
4142 	cmd->frame_count = (sge_bytes / MRMFI_FRAME_SIZE) +
4143 	    ((sge_bytes % MRMFI_FRAME_SIZE) ? 1 : 0) + 1;
4144 
4145 	if (cmd->frame_count >= 8) {
4146 		cmd->frame_count = 8;
4147 	}
4148 
4149 	return (cmd);
4150 }
4151 #ifndef __sparc
4152 static int
4153 wait_for_outstanding(struct mrsas_instance *instance)
4154 {
4155 	int		i;
4156 	uint32_t	wait_time = 90;
4157 
4158 	for (i = 0; i < wait_time; i++) {
4159 		if (!instance->fw_outstanding) {
4160 			break;
4161 		}
4162 		drv_usecwait(MILLISEC); /* wait for 1000 usecs */;
4163 	}
4164 
4165 	if (instance->fw_outstanding) {
4166 		return (1);
4167 	}
4168 
4169 	return (0);
4170 }
4171 #endif  /* __sparc */
4172 /*
4173  * issue_mfi_pthru
4174  */
4175 static int
4176 issue_mfi_pthru(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
4177     struct mrsas_cmd *cmd, int mode)
4178 {
4179 	void		*ubuf;
4180 	uint32_t	kphys_addr = 0;
4181 	uint32_t	xferlen = 0;
4182 	uint_t		model;
4183 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
4184 	dma_obj_t			pthru_dma_obj;
4185 	struct mrsas_pthru_frame	*kpthru;
4186 	struct mrsas_pthru_frame	*pthru;
4187 	int i;
4188 	pthru = &cmd->frame->pthru;
4189 	kpthru = (struct mrsas_pthru_frame *)&ioctl->frame[0];
4190 
4191 	if (instance->adapterresetinprogress) {
4192 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_pthru: Reset flag set, "
4193 		"returning mfi_pkt and setting TRAN_BUSY\n"));
4194 		return (DDI_FAILURE);
4195 	}
4196 	model = ddi_model_convert_from(mode & FMODELS);
4197 	if (model == DDI_MODEL_ILP32) {
4198 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_pthru: DDI_MODEL_LP32"));
4199 
4200 		xferlen	= kpthru->sgl.sge32[0].length;
4201 
4202 		ubuf	= (void *)(ulong_t)kpthru->sgl.sge32[0].phys_addr;
4203 	} else {
4204 #ifdef _ILP32
4205 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_pthru: DDI_MODEL_LP32"));
4206 		xferlen	= kpthru->sgl.sge32[0].length;
4207 		ubuf	= (void *)(ulong_t)kpthru->sgl.sge32[0].phys_addr;
4208 #else
4209 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_pthru: DDI_MODEL_LP64"));
4210 		xferlen	= kpthru->sgl.sge64[0].length;
4211 		ubuf	= (void *)(ulong_t)kpthru->sgl.sge64[0].phys_addr;
4212 #endif
4213 	}
4214 
4215 	if (xferlen) {
4216 		/* means IOCTL requires DMA */
4217 		/* allocate the data transfer buffer */
4218 		pthru_dma_obj.size = xferlen;
4219 		pthru_dma_obj.dma_attr = mrsas_generic_dma_attr;
4220 		pthru_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
4221 		pthru_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
4222 		pthru_dma_obj.dma_attr.dma_attr_sgllen = 1;
4223 		pthru_dma_obj.dma_attr.dma_attr_align = 1;
4224 
4225 		/* allocate kernel buffer for DMA */
4226 		if (mrsas_alloc_dma_obj(instance, &pthru_dma_obj,
4227 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
4228 			con_log(CL_ANN, (CE_WARN, "issue_mfi_pthru: "
4229 			    "could not allocate data transfer buffer."));
4230 			return (DDI_FAILURE);
4231 		}
4232 		(void) memset(pthru_dma_obj.buffer, 0, xferlen);
4233 
4234 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
4235 		if (kpthru->flags & MFI_FRAME_DIR_WRITE) {
4236 			for (i = 0; i < xferlen; i++) {
4237 				if (ddi_copyin((uint8_t *)ubuf+i,
4238 				    (uint8_t *)pthru_dma_obj.buffer+i,
4239 				    1, mode)) {
4240 					con_log(CL_ANN, (CE_WARN,
4241 					    "issue_mfi_pthru : "
4242 					    "copy from user space failed"));
4243 					return (DDI_FAILURE);
4244 				}
4245 			}
4246 		}
4247 
4248 		kphys_addr = pthru_dma_obj.dma_cookie[0].dmac_address;
4249 	}
4250 
4251 	ddi_put8(acc_handle, &pthru->cmd, kpthru->cmd);
4252 	ddi_put8(acc_handle, &pthru->sense_len, 0);
4253 	ddi_put8(acc_handle, &pthru->cmd_status, 0);
4254 	ddi_put8(acc_handle, &pthru->scsi_status, 0);
4255 	ddi_put8(acc_handle, &pthru->target_id, kpthru->target_id);
4256 	ddi_put8(acc_handle, &pthru->lun, kpthru->lun);
4257 	ddi_put8(acc_handle, &pthru->cdb_len, kpthru->cdb_len);
4258 	ddi_put8(acc_handle, &pthru->sge_count, kpthru->sge_count);
4259 	ddi_put16(acc_handle, &pthru->timeout, kpthru->timeout);
4260 	ddi_put32(acc_handle, &pthru->data_xfer_len, kpthru->data_xfer_len);
4261 
4262 	ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_hi, 0);
4263 	/* pthru->sense_buf_phys_addr_lo = cmd->sense_phys_addr; */
4264 	ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_lo, 0);
4265 
4266 	ddi_rep_put8(acc_handle, (uint8_t *)kpthru->cdb, (uint8_t *)pthru->cdb,
4267 	    pthru->cdb_len, DDI_DEV_AUTOINCR);
4268 
4269 	ddi_put16(acc_handle, &pthru->flags, kpthru->flags & ~MFI_FRAME_SGL64);
4270 	ddi_put32(acc_handle, &pthru->sgl.sge32[0].length, xferlen);
4271 	ddi_put32(acc_handle, &pthru->sgl.sge32[0].phys_addr, kphys_addr);
4272 
4273 	cmd->sync_cmd = MRSAS_TRUE;
4274 	cmd->frame_count = 1;
4275 
4276 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
4277 		con_log(CL_ANN, (CE_WARN,
4278 		    "issue_mfi_pthru: fw_ioctl failed"));
4279 	} else {
4280 		if (xferlen && kpthru->flags & MFI_FRAME_DIR_READ) {
4281 			for (i = 0; i < xferlen; i++) {
4282 				if (ddi_copyout(
4283 				    (uint8_t *)pthru_dma_obj.buffer+i,
4284 				    (uint8_t *)ubuf+i, 1, mode)) {
4285 					con_log(CL_ANN, (CE_WARN,
4286 					    "issue_mfi_pthru : "
4287 					    "copy to user space failed"));
4288 					return (DDI_FAILURE);
4289 				}
4290 			}
4291 		}
4292 	}
4293 
4294 	kpthru->cmd_status = ddi_get8(acc_handle, &pthru->cmd_status);
4295 	kpthru->scsi_status = ddi_get8(acc_handle, &pthru->scsi_status);
4296 
4297 	con_log(CL_ANN, (CE_NOTE, "issue_mfi_pthru: cmd_status %x, "
4298 	    "scsi_status %x", kpthru->cmd_status, kpthru->scsi_status));
4299 	DTRACE_PROBE3(issue_pthru, uint8_t, kpthru->cmd, uint8_t,
4300 	    kpthru->cmd_status, uint8_t, kpthru->scsi_status);
4301 
4302 	if (xferlen) {
4303 		/* free kernel buffer */
4304 		if (mrsas_free_dma_obj(instance, pthru_dma_obj) != DDI_SUCCESS)
4305 			return (DDI_FAILURE);
4306 	}
4307 
4308 	return (DDI_SUCCESS);
4309 }
4310 
4311 /*
4312  * issue_mfi_dcmd
4313  */
4314 static int
4315 issue_mfi_dcmd(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
4316     struct mrsas_cmd *cmd, int mode)
4317 {
4318 	void		*ubuf;
4319 	uint32_t	kphys_addr = 0;
4320 	uint32_t	xferlen = 0;
4321 	uint32_t	model;
4322 	dma_obj_t	dcmd_dma_obj;
4323 	struct mrsas_dcmd_frame	*kdcmd;
4324 	struct mrsas_dcmd_frame	*dcmd;
4325 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
4326 	int i;
4327 	dcmd = &cmd->frame->dcmd;
4328 	kdcmd = (struct mrsas_dcmd_frame *)&ioctl->frame[0];
4329 	if (instance->adapterresetinprogress) {
4330 		con_log(CL_ANN1, (CE_NOTE, "Reset flag set, "
4331 		"returning mfi_pkt and setting TRAN_BUSY\n"));
4332 		return (DDI_FAILURE);
4333 	}
4334 	model = ddi_model_convert_from(mode & FMODELS);
4335 	if (model == DDI_MODEL_ILP32) {
4336 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_dcmd: DDI_MODEL_ILP32"));
4337 
4338 		xferlen	= kdcmd->sgl.sge32[0].length;
4339 
4340 		ubuf	= (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
4341 	} else {
4342 #ifdef _ILP32
4343 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_dcmd: DDI_MODEL_ILP32"));
4344 		xferlen	= kdcmd->sgl.sge32[0].length;
4345 		ubuf	= (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
4346 #else
4347 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_dcmd: DDI_MODEL_LP64"));
4348 		xferlen	= kdcmd->sgl.sge64[0].length;
4349 		ubuf	= (void *)(ulong_t)kdcmd->sgl.sge64[0].phys_addr;
4350 #endif
4351 	}
4352 	if (xferlen) {
4353 		/* means IOCTL requires DMA */
4354 		/* allocate the data transfer buffer */
4355 		dcmd_dma_obj.size = xferlen;
4356 		dcmd_dma_obj.dma_attr = mrsas_generic_dma_attr;
4357 		dcmd_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
4358 		dcmd_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
4359 		dcmd_dma_obj.dma_attr.dma_attr_sgllen = 1;
4360 		dcmd_dma_obj.dma_attr.dma_attr_align = 1;
4361 
4362 		/* allocate kernel buffer for DMA */
4363 		if (mrsas_alloc_dma_obj(instance, &dcmd_dma_obj,
4364 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
4365 			con_log(CL_ANN, (CE_WARN, "issue_mfi_dcmd: "
4366 			    "could not allocate data transfer buffer."));
4367 			return (DDI_FAILURE);
4368 		}
4369 		(void) memset(dcmd_dma_obj.buffer, 0, xferlen);
4370 
4371 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
4372 		if (kdcmd->flags & MFI_FRAME_DIR_WRITE) {
4373 			for (i = 0; i < xferlen; i++) {
4374 				if (ddi_copyin((uint8_t *)ubuf + i,
4375 				    (uint8_t *)dcmd_dma_obj.buffer + i,
4376 				    1, mode)) {
4377 					con_log(CL_ANN, (CE_WARN,
4378 					    "issue_mfi_dcmd : "
4379 					    "copy from user space failed"));
4380 					return (DDI_FAILURE);
4381 				}
4382 			}
4383 		}
4384 
4385 		kphys_addr = dcmd_dma_obj.dma_cookie[0].dmac_address;
4386 	}
4387 
4388 	ddi_put8(acc_handle, &dcmd->cmd, kdcmd->cmd);
4389 	ddi_put8(acc_handle, &dcmd->cmd_status, 0);
4390 	ddi_put8(acc_handle, &dcmd->sge_count, kdcmd->sge_count);
4391 	ddi_put16(acc_handle, &dcmd->timeout, kdcmd->timeout);
4392 	ddi_put32(acc_handle, &dcmd->data_xfer_len, kdcmd->data_xfer_len);
4393 	ddi_put32(acc_handle, &dcmd->opcode, kdcmd->opcode);
4394 
4395 	ddi_rep_put8(acc_handle, (uint8_t *)kdcmd->mbox.b,
4396 	    (uint8_t *)dcmd->mbox.b, DCMD_MBOX_SZ, DDI_DEV_AUTOINCR);
4397 
4398 	ddi_put16(acc_handle, &dcmd->flags, kdcmd->flags & ~MFI_FRAME_SGL64);
4399 	ddi_put32(acc_handle, &dcmd->sgl.sge32[0].length, xferlen);
4400 	ddi_put32(acc_handle, &dcmd->sgl.sge32[0].phys_addr, kphys_addr);
4401 
4402 	cmd->sync_cmd = MRSAS_TRUE;
4403 	cmd->frame_count = 1;
4404 
4405 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
4406 		con_log(CL_ANN, (CE_WARN, "issue_mfi_dcmd: fw_ioctl failed"));
4407 	} else {
4408 		if (xferlen && (kdcmd->flags & MFI_FRAME_DIR_READ)) {
4409 			for (i = 0; i < xferlen; i++) {
4410 				if (ddi_copyout(
4411 				    (uint8_t *)dcmd_dma_obj.buffer + i,
4412 				    (uint8_t *)ubuf + i,
4413 				    1, mode)) {
4414 					con_log(CL_ANN, (CE_WARN,
4415 					    "issue_mfi_dcmd : "
4416 					    "copy to user space failed"));
4417 					return (DDI_FAILURE);
4418 				}
4419 			}
4420 		}
4421 	}
4422 
4423 	kdcmd->cmd_status = ddi_get8(acc_handle, &dcmd->cmd_status);
4424 	DTRACE_PROBE3(issue_dcmd, uint32_t, kdcmd->opcode, uint8_t,
4425 	    kdcmd->cmd, uint8_t, kdcmd->cmd_status);
4426 
4427 	if (xferlen) {
4428 		/* free kernel buffer */
4429 		if (mrsas_free_dma_obj(instance, dcmd_dma_obj) != DDI_SUCCESS)
4430 			return (DDI_FAILURE);
4431 	}
4432 
4433 	return (DDI_SUCCESS);
4434 }
4435 
4436 /*
4437  * issue_mfi_smp
4438  */
4439 static int
4440 issue_mfi_smp(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
4441     struct mrsas_cmd *cmd, int mode)
4442 {
4443 	void		*request_ubuf;
4444 	void		*response_ubuf;
4445 	uint32_t	request_xferlen = 0;
4446 	uint32_t	response_xferlen = 0;
4447 	uint_t		model;
4448 	dma_obj_t			request_dma_obj;
4449 	dma_obj_t			response_dma_obj;
4450 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
4451 	struct mrsas_smp_frame		*ksmp;
4452 	struct mrsas_smp_frame		*smp;
4453 	struct mrsas_sge32		*sge32;
4454 #ifndef _ILP32
4455 	struct mrsas_sge64		*sge64;
4456 #endif
4457 	int i;
4458 	uint64_t			tmp_sas_addr;
4459 
4460 	smp = &cmd->frame->smp;
4461 	ksmp = (struct mrsas_smp_frame *)&ioctl->frame[0];
4462 
4463 	if (instance->adapterresetinprogress) {
4464 		con_log(CL_ANN1, (CE_NOTE, "Reset flag set, "
4465 		"returning mfi_pkt and setting TRAN_BUSY\n"));
4466 		return (DDI_FAILURE);
4467 	}
4468 	model = ddi_model_convert_from(mode & FMODELS);
4469 	if (model == DDI_MODEL_ILP32) {
4470 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: DDI_MODEL_ILP32"));
4471 
4472 		sge32			= &ksmp->sgl[0].sge32[0];
4473 		response_xferlen	= sge32[0].length;
4474 		request_xferlen		= sge32[1].length;
4475 		con_log(CL_ANN, (CE_NOTE, "issue_mfi_smp: "
4476 		    "response_xferlen = %x, request_xferlen = %x",
4477 		    response_xferlen, request_xferlen));
4478 
4479 		response_ubuf	= (void *)(ulong_t)sge32[0].phys_addr;
4480 		request_ubuf	= (void *)(ulong_t)sge32[1].phys_addr;
4481 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: "
4482 		    "response_ubuf = %p, request_ubuf = %p",
4483 		    response_ubuf, request_ubuf));
4484 	} else {
4485 #ifdef _ILP32
4486 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: DDI_MODEL_ILP32"));
4487 
4488 		sge32			= &ksmp->sgl[0].sge32[0];
4489 		response_xferlen	= sge32[0].length;
4490 		request_xferlen		= sge32[1].length;
4491 		con_log(CL_ANN, (CE_NOTE, "issue_mfi_smp: "
4492 		    "response_xferlen = %x, request_xferlen = %x",
4493 		    response_xferlen, request_xferlen));
4494 
4495 		response_ubuf	= (void *)(ulong_t)sge32[0].phys_addr;
4496 		request_ubuf	= (void *)(ulong_t)sge32[1].phys_addr;
4497 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: "
4498 		    "response_ubuf = %p, request_ubuf = %p",
4499 		    response_ubuf, request_ubuf));
4500 #else
4501 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: DDI_MODEL_LP64"));
4502 
4503 		sge64			= &ksmp->sgl[0].sge64[0];
4504 		response_xferlen	= sge64[0].length;
4505 		request_xferlen		= sge64[1].length;
4506 
4507 		response_ubuf	= (void *)(ulong_t)sge64[0].phys_addr;
4508 		request_ubuf	= (void *)(ulong_t)sge64[1].phys_addr;
4509 #endif
4510 	}
4511 	if (request_xferlen) {
4512 		/* means IOCTL requires DMA */
4513 		/* allocate the data transfer buffer */
4514 		request_dma_obj.size = request_xferlen;
4515 		request_dma_obj.dma_attr = mrsas_generic_dma_attr;
4516 		request_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
4517 		request_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
4518 		request_dma_obj.dma_attr.dma_attr_sgllen = 1;
4519 		request_dma_obj.dma_attr.dma_attr_align = 1;
4520 
4521 		/* allocate kernel buffer for DMA */
4522 		if (mrsas_alloc_dma_obj(instance, &request_dma_obj,
4523 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
4524 			con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
4525 			    "could not allocate data transfer buffer."));
4526 			return (DDI_FAILURE);
4527 		}
4528 		(void) memset(request_dma_obj.buffer, 0, request_xferlen);
4529 
4530 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
4531 		for (i = 0; i < request_xferlen; i++) {
4532 			if (ddi_copyin((uint8_t *)request_ubuf + i,
4533 			    (uint8_t *)request_dma_obj.buffer + i,
4534 			    1, mode)) {
4535 				con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
4536 				    "copy from user space failed"));
4537 				return (DDI_FAILURE);
4538 			}
4539 		}
4540 	}
4541 
4542 	if (response_xferlen) {
4543 		/* means IOCTL requires DMA */
4544 		/* allocate the data transfer buffer */
4545 		response_dma_obj.size = response_xferlen;
4546 		response_dma_obj.dma_attr = mrsas_generic_dma_attr;
4547 		response_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
4548 		response_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
4549 		response_dma_obj.dma_attr.dma_attr_sgllen = 1;
4550 		response_dma_obj.dma_attr.dma_attr_align = 1;
4551 
4552 		/* allocate kernel buffer for DMA */
4553 		if (mrsas_alloc_dma_obj(instance, &response_dma_obj,
4554 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
4555 			con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
4556 			    "could not allocate data transfer buffer."));
4557 			return (DDI_FAILURE);
4558 		}
4559 		(void) memset(response_dma_obj.buffer, 0, response_xferlen);
4560 
4561 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
4562 		for (i = 0; i < response_xferlen; i++) {
4563 			if (ddi_copyin((uint8_t *)response_ubuf + i,
4564 			    (uint8_t *)response_dma_obj.buffer + i,
4565 			    1, mode)) {
4566 				con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
4567 				    "copy from user space failed"));
4568 				return (DDI_FAILURE);
4569 			}
4570 		}
4571 	}
4572 
4573 	ddi_put8(acc_handle, &smp->cmd, ksmp->cmd);
4574 	ddi_put8(acc_handle, &smp->cmd_status, 0);
4575 	ddi_put8(acc_handle, &smp->connection_status, 0);
4576 	ddi_put8(acc_handle, &smp->sge_count, ksmp->sge_count);
4577 	/* smp->context		= ksmp->context; */
4578 	ddi_put16(acc_handle, &smp->timeout, ksmp->timeout);
4579 	ddi_put32(acc_handle, &smp->data_xfer_len, ksmp->data_xfer_len);
4580 
4581 	bcopy((void *)&ksmp->sas_addr, (void *)&tmp_sas_addr,
4582 	    sizeof (uint64_t));
4583 	ddi_put64(acc_handle, &smp->sas_addr, tmp_sas_addr);
4584 
4585 	ddi_put16(acc_handle, &smp->flags, ksmp->flags & ~MFI_FRAME_SGL64);
4586 
4587 	model = ddi_model_convert_from(mode & FMODELS);
4588 	if (model == DDI_MODEL_ILP32) {
4589 		con_log(CL_ANN1, (CE_NOTE,
4590 		    "issue_mfi_smp: DDI_MODEL_ILP32"));
4591 
4592 		sge32 = &smp->sgl[0].sge32[0];
4593 		ddi_put32(acc_handle, &sge32[0].length, response_xferlen);
4594 		ddi_put32(acc_handle, &sge32[0].phys_addr,
4595 		    response_dma_obj.dma_cookie[0].dmac_address);
4596 		ddi_put32(acc_handle, &sge32[1].length, request_xferlen);
4597 		ddi_put32(acc_handle, &sge32[1].phys_addr,
4598 		    request_dma_obj.dma_cookie[0].dmac_address);
4599 	} else {
4600 #ifdef _ILP32
4601 		con_log(CL_ANN1, (CE_NOTE,
4602 		    "issue_mfi_smp: DDI_MODEL_ILP32"));
4603 		sge32 = &smp->sgl[0].sge32[0];
4604 		ddi_put32(acc_handle, &sge32[0].length, response_xferlen);
4605 		ddi_put32(acc_handle, &sge32[0].phys_addr,
4606 		    response_dma_obj.dma_cookie[0].dmac_address);
4607 		ddi_put32(acc_handle, &sge32[1].length, request_xferlen);
4608 		ddi_put32(acc_handle, &sge32[1].phys_addr,
4609 		    request_dma_obj.dma_cookie[0].dmac_address);
4610 #else
4611 		con_log(CL_ANN1, (CE_NOTE,
4612 		    "issue_mfi_smp: DDI_MODEL_LP64"));
4613 		sge64 = &smp->sgl[0].sge64[0];
4614 		ddi_put32(acc_handle, &sge64[0].length, response_xferlen);
4615 		ddi_put64(acc_handle, &sge64[0].phys_addr,
4616 		    response_dma_obj.dma_cookie[0].dmac_address);
4617 		ddi_put32(acc_handle, &sge64[1].length, request_xferlen);
4618 		ddi_put64(acc_handle, &sge64[1].phys_addr,
4619 		    request_dma_obj.dma_cookie[0].dmac_address);
4620 #endif
4621 	}
4622 	con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp : "
4623 	    "smp->response_xferlen = %d, smp->request_xferlen = %d "
4624 	    "smp->data_xfer_len = %d", ddi_get32(acc_handle, &sge32[0].length),
4625 	    ddi_get32(acc_handle, &sge32[1].length),
4626 	    ddi_get32(acc_handle, &smp->data_xfer_len)));
4627 
4628 	cmd->sync_cmd = MRSAS_TRUE;
4629 	cmd->frame_count = 1;
4630 
4631 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
4632 		con_log(CL_ANN, (CE_WARN,
4633 		    "issue_mfi_smp: fw_ioctl failed"));
4634 	} else {
4635 		con_log(CL_ANN1, (CE_NOTE,
4636 		    "issue_mfi_smp: copy to user space"));
4637 
4638 		if (request_xferlen) {
4639 			for (i = 0; i < request_xferlen; i++) {
4640 				if (ddi_copyout(
4641 				    (uint8_t *)request_dma_obj.buffer +
4642 				    i, (uint8_t *)request_ubuf + i,
4643 				    1, mode)) {
4644 					con_log(CL_ANN, (CE_WARN,
4645 					    "issue_mfi_smp : copy to user space"
4646 					    " failed"));
4647 					return (DDI_FAILURE);
4648 				}
4649 			}
4650 		}
4651 
4652 		if (response_xferlen) {
4653 			for (i = 0; i < response_xferlen; i++) {
4654 				if (ddi_copyout(
4655 				    (uint8_t *)response_dma_obj.buffer
4656 				    + i, (uint8_t *)response_ubuf
4657 				    + i, 1, mode)) {
4658 					con_log(CL_ANN, (CE_WARN,
4659 					    "issue_mfi_smp : copy to "
4660 					    "user space failed"));
4661 					return (DDI_FAILURE);
4662 				}
4663 			}
4664 		}
4665 	}
4666 
4667 	ksmp->cmd_status = ddi_get8(acc_handle, &smp->cmd_status);
4668 	con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: smp->cmd_status = %d",
4669 	    ddi_get8(acc_handle, &smp->cmd_status)));
4670 	DTRACE_PROBE2(issue_smp, uint8_t, ksmp->cmd, uint8_t, ksmp->cmd_status);
4671 
4672 	if (request_xferlen) {
4673 		/* free kernel buffer */
4674 		if (mrsas_free_dma_obj(instance, request_dma_obj) !=
4675 		    DDI_SUCCESS)
4676 			return (DDI_FAILURE);
4677 	}
4678 
4679 	if (response_xferlen) {
4680 		/* free kernel buffer */
4681 		if (mrsas_free_dma_obj(instance, response_dma_obj) !=
4682 		    DDI_SUCCESS)
4683 			return (DDI_FAILURE);
4684 	}
4685 
4686 	return (DDI_SUCCESS);
4687 }
4688 
4689 /*
4690  * issue_mfi_stp
4691  */
4692 static int
4693 issue_mfi_stp(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
4694     struct mrsas_cmd *cmd, int mode)
4695 {
4696 	void		*fis_ubuf;
4697 	void		*data_ubuf;
4698 	uint32_t	fis_xferlen = 0;
4699 	uint32_t	data_xferlen = 0;
4700 	uint_t		model;
4701 	dma_obj_t	fis_dma_obj;
4702 	dma_obj_t	data_dma_obj;
4703 	struct mrsas_stp_frame	*kstp;
4704 	struct mrsas_stp_frame	*stp;
4705 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
4706 	int i;
4707 
4708 	stp = &cmd->frame->stp;
4709 	kstp = (struct mrsas_stp_frame *)&ioctl->frame[0];
4710 
4711 	if (instance->adapterresetinprogress) {
4712 		con_log(CL_ANN1, (CE_NOTE, "Reset flag set, "
4713 		"returning mfi_pkt and setting TRAN_BUSY\n"));
4714 		return (DDI_FAILURE);
4715 	}
4716 	model = ddi_model_convert_from(mode & FMODELS);
4717 	if (model == DDI_MODEL_ILP32) {
4718 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_stp: DDI_MODEL_ILP32"));
4719 
4720 		fis_xferlen	= kstp->sgl.sge32[0].length;
4721 		data_xferlen	= kstp->sgl.sge32[1].length;
4722 
4723 		fis_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[0].phys_addr;
4724 		data_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[1].phys_addr;
4725 	}
4726 	else
4727 	{
4728 #ifdef _ILP32
4729 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_stp: DDI_MODEL_ILP32"));
4730 
4731 		fis_xferlen	= kstp->sgl.sge32[0].length;
4732 		data_xferlen	= kstp->sgl.sge32[1].length;
4733 
4734 		fis_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[0].phys_addr;
4735 		data_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[1].phys_addr;
4736 #else
4737 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_stp: DDI_MODEL_LP64"));
4738 
4739 		fis_xferlen	= kstp->sgl.sge64[0].length;
4740 		data_xferlen	= kstp->sgl.sge64[1].length;
4741 
4742 		fis_ubuf	= (void *)(ulong_t)kstp->sgl.sge64[0].phys_addr;
4743 		data_ubuf	= (void *)(ulong_t)kstp->sgl.sge64[1].phys_addr;
4744 #endif
4745 	}
4746 
4747 
4748 	if (fis_xferlen) {
4749 		con_log(CL_ANN, (CE_NOTE, "issue_mfi_stp: "
4750 		    "fis_ubuf = %p fis_xferlen = %x", fis_ubuf, fis_xferlen));
4751 
4752 		/* means IOCTL requires DMA */
4753 		/* allocate the data transfer buffer */
4754 		fis_dma_obj.size = fis_xferlen;
4755 		fis_dma_obj.dma_attr = mrsas_generic_dma_attr;
4756 		fis_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
4757 		fis_dma_obj.dma_attr.dma_attr_count_max	= 0xFFFFFFFFU;
4758 		fis_dma_obj.dma_attr.dma_attr_sgllen = 1;
4759 		fis_dma_obj.dma_attr.dma_attr_align = 1;
4760 
4761 		/* allocate kernel buffer for DMA */
4762 		if (mrsas_alloc_dma_obj(instance, &fis_dma_obj,
4763 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
4764 			con_log(CL_ANN, (CE_WARN, "issue_mfi_stp : "
4765 			    "could not allocate data transfer buffer."));
4766 			return (DDI_FAILURE);
4767 		}
4768 		(void) memset(fis_dma_obj.buffer, 0, fis_xferlen);
4769 
4770 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
4771 		for (i = 0; i < fis_xferlen; i++) {
4772 			if (ddi_copyin((uint8_t *)fis_ubuf + i,
4773 			    (uint8_t *)fis_dma_obj.buffer + i, 1, mode)) {
4774 				con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: "
4775 				    "copy from user space failed"));
4776 				return (DDI_FAILURE);
4777 			}
4778 		}
4779 	}
4780 
4781 	if (data_xferlen) {
4782 		con_log(CL_ANN, (CE_NOTE, "issue_mfi_stp: data_ubuf = %p "
4783 		    "data_xferlen = %x", data_ubuf, data_xferlen));
4784 
4785 		/* means IOCTL requires DMA */
4786 		/* allocate the data transfer buffer */
4787 		data_dma_obj.size = data_xferlen;
4788 		data_dma_obj.dma_attr = mrsas_generic_dma_attr;
4789 		data_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
4790 		data_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
4791 		data_dma_obj.dma_attr.dma_attr_sgllen = 1;
4792 		data_dma_obj.dma_attr.dma_attr_align = 1;
4793 
4794 /* allocate kernel buffer for DMA */
4795 		if (mrsas_alloc_dma_obj(instance, &data_dma_obj,
4796 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
4797 			con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: "
4798 			    "could not allocate data transfer buffer."));
4799 			return (DDI_FAILURE);
4800 		}
4801 		(void) memset(data_dma_obj.buffer, 0, data_xferlen);
4802 
4803 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
4804 		for (i = 0; i < data_xferlen; i++) {
4805 			if (ddi_copyin((uint8_t *)data_ubuf + i,
4806 			    (uint8_t *)data_dma_obj.buffer + i, 1, mode)) {
4807 				con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: "
4808 				    "copy from user space failed"));
4809 				return (DDI_FAILURE);
4810 			}
4811 		}
4812 	}
4813 
4814 	ddi_put8(acc_handle, &stp->cmd, kstp->cmd);
4815 	ddi_put8(acc_handle, &stp->cmd_status, 0);
4816 	ddi_put8(acc_handle, &stp->connection_status, 0);
4817 	ddi_put8(acc_handle, &stp->target_id, kstp->target_id);
4818 	ddi_put8(acc_handle, &stp->sge_count, kstp->sge_count);
4819 
4820 	ddi_put16(acc_handle, &stp->timeout, kstp->timeout);
4821 	ddi_put32(acc_handle, &stp->data_xfer_len, kstp->data_xfer_len);
4822 
4823 	ddi_rep_put8(acc_handle, (uint8_t *)kstp->fis, (uint8_t *)stp->fis, 10,
4824 	    DDI_DEV_AUTOINCR);
4825 
4826 	ddi_put16(acc_handle, &stp->flags, kstp->flags & ~MFI_FRAME_SGL64);
4827 	ddi_put32(acc_handle, &stp->stp_flags, kstp->stp_flags);
4828 	ddi_put32(acc_handle, &stp->sgl.sge32[0].length, fis_xferlen);
4829 	ddi_put32(acc_handle, &stp->sgl.sge32[0].phys_addr,
4830 	    fis_dma_obj.dma_cookie[0].dmac_address);
4831 	ddi_put32(acc_handle, &stp->sgl.sge32[1].length, data_xferlen);
4832 	ddi_put32(acc_handle, &stp->sgl.sge32[1].phys_addr,
4833 	    data_dma_obj.dma_cookie[0].dmac_address);
4834 
4835 	cmd->sync_cmd = MRSAS_TRUE;
4836 	cmd->frame_count = 1;
4837 
4838 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
4839 		con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: fw_ioctl failed"));
4840 	} else {
4841 
4842 		if (fis_xferlen) {
4843 			for (i = 0; i < fis_xferlen; i++) {
4844 				if (ddi_copyout(
4845 				    (uint8_t *)fis_dma_obj.buffer + i,
4846 				    (uint8_t *)fis_ubuf + i, 1, mode)) {
4847 					con_log(CL_ANN, (CE_WARN,
4848 					    "issue_mfi_stp : copy to "
4849 					    "user space failed"));
4850 					return (DDI_FAILURE);
4851 				}
4852 			}
4853 		}
4854 	}
4855 	if (data_xferlen) {
4856 		for (i = 0; i < data_xferlen; i++) {
4857 			if (ddi_copyout(
4858 			    (uint8_t *)data_dma_obj.buffer + i,
4859 			    (uint8_t *)data_ubuf + i, 1, mode)) {
4860 				con_log(CL_ANN, (CE_WARN,
4861 				    "issue_mfi_stp : copy to"
4862 				    " user space failed"));
4863 				return (DDI_FAILURE);
4864 			}
4865 		}
4866 	}
4867 
4868 	kstp->cmd_status = ddi_get8(acc_handle, &stp->cmd_status);
4869 	DTRACE_PROBE2(issue_stp, uint8_t, kstp->cmd, uint8_t, kstp->cmd_status);
4870 
4871 	if (fis_xferlen) {
4872 		/* free kernel buffer */
4873 		if (mrsas_free_dma_obj(instance, fis_dma_obj) != DDI_SUCCESS)
4874 			return (DDI_FAILURE);
4875 	}
4876 
4877 	if (data_xferlen) {
4878 		/* free kernel buffer */
4879 		if (mrsas_free_dma_obj(instance, data_dma_obj) != DDI_SUCCESS)
4880 			return (DDI_FAILURE);
4881 	}
4882 
4883 	return (DDI_SUCCESS);
4884 }
4885 
4886 /*
4887  * fill_up_drv_ver
4888  */
4889 static void
4890 fill_up_drv_ver(struct mrsas_drv_ver *dv)
4891 {
4892 	(void) memset(dv, 0, sizeof (struct mrsas_drv_ver));
4893 
4894 	(void) memcpy(dv->signature, "$LSI LOGIC$", strlen("$LSI LOGIC$"));
4895 	(void) memcpy(dv->os_name, "Solaris", strlen("Solaris"));
4896 	(void) memcpy(dv->drv_name, "mr_sas", strlen("mr_sas"));
4897 	(void) memcpy(dv->drv_ver, MRSAS_VERSION, strlen(MRSAS_VERSION));
4898 	(void) memcpy(dv->drv_rel_date, MRSAS_RELDATE,
4899 	    strlen(MRSAS_RELDATE));
4900 }
4901 
4902 /*
4903  * handle_drv_ioctl
4904  */
4905 static int
4906 handle_drv_ioctl(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
4907     int mode)
4908 {
4909 	int	i;
4910 	int	rval = DDI_SUCCESS;
4911 	int	*props = NULL;
4912 	void	*ubuf;
4913 
4914 	uint8_t		*pci_conf_buf;
4915 	uint32_t	xferlen;
4916 	uint32_t	num_props;
4917 	uint_t		model;
4918 	struct mrsas_dcmd_frame	*kdcmd;
4919 	struct mrsas_drv_ver	dv;
4920 	struct mrsas_pci_information pi;
4921 
4922 	kdcmd = (struct mrsas_dcmd_frame *)&ioctl->frame[0];
4923 
4924 	model = ddi_model_convert_from(mode & FMODELS);
4925 	if (model == DDI_MODEL_ILP32) {
4926 		con_log(CL_ANN1, (CE_NOTE,
4927 		    "handle_drv_ioctl: DDI_MODEL_ILP32"));
4928 
4929 		xferlen	= kdcmd->sgl.sge32[0].length;
4930 
4931 		ubuf = (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
4932 	} else {
4933 #ifdef _ILP32
4934 		con_log(CL_ANN1, (CE_NOTE,
4935 		    "handle_drv_ioctl: DDI_MODEL_ILP32"));
4936 		xferlen	= kdcmd->sgl.sge32[0].length;
4937 		ubuf = (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
4938 #else
4939 		con_log(CL_ANN1, (CE_NOTE,
4940 		    "handle_drv_ioctl: DDI_MODEL_LP64"));
4941 		xferlen	= kdcmd->sgl.sge64[0].length;
4942 		ubuf = (void *)(ulong_t)kdcmd->sgl.sge64[0].phys_addr;
4943 #endif
4944 	}
4945 	con_log(CL_ANN1, (CE_NOTE, "handle_drv_ioctl: "
4946 	    "dataBuf=%p size=%d bytes", ubuf, xferlen));
4947 
4948 	switch (kdcmd->opcode) {
4949 	case MRSAS_DRIVER_IOCTL_DRIVER_VERSION:
4950 		con_log(CL_ANN1, (CE_NOTE, "handle_drv_ioctl: "
4951 		    "MRSAS_DRIVER_IOCTL_DRIVER_VERSION"));
4952 
4953 		fill_up_drv_ver(&dv);
4954 
4955 		if (ddi_copyout(&dv, ubuf, xferlen, mode)) {
4956 			con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
4957 			    "MRSAS_DRIVER_IOCTL_DRIVER_VERSION : "
4958 			    "copy to user space failed"));
4959 			kdcmd->cmd_status = 1;
4960 			rval = 1;
4961 		} else {
4962 			kdcmd->cmd_status = 0;
4963 		}
4964 		break;
4965 	case MRSAS_DRIVER_IOCTL_PCI_INFORMATION:
4966 		con_log(CL_ANN1, (CE_NOTE, "handle_drv_ioctl: "
4967 		    "MRSAS_DRIVER_IOCTL_PCI_INFORMAITON"));
4968 
4969 		if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, instance->dip,
4970 		    0, "reg", &props, &num_props)) {
4971 			con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
4972 			    "MRSAS_DRIVER_IOCTL_PCI_INFORMATION : "
4973 			    "ddi_prop_look_int_array failed"));
4974 			rval = DDI_FAILURE;
4975 		} else {
4976 
4977 			pi.busNumber = (props[0] >> 16) & 0xFF;
4978 			pi.deviceNumber = (props[0] >> 11) & 0x1f;
4979 			pi.functionNumber = (props[0] >> 8) & 0x7;
4980 			ddi_prop_free((void *)props);
4981 		}
4982 
4983 		pci_conf_buf = (uint8_t *)&pi.pciHeaderInfo;
4984 
4985 		for (i = 0; i < (sizeof (struct mrsas_pci_information) -
4986 		    offsetof(struct mrsas_pci_information, pciHeaderInfo));
4987 		    i++) {
4988 			pci_conf_buf[i] =
4989 			    pci_config_get8(instance->pci_handle, i);
4990 		}
4991 
4992 		if (ddi_copyout(&pi, ubuf, xferlen, mode)) {
4993 			con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
4994 			    "MRSAS_DRIVER_IOCTL_PCI_INFORMATION : "
4995 			    "copy to user space failed"));
4996 			kdcmd->cmd_status = 1;
4997 			rval = 1;
4998 		} else {
4999 			kdcmd->cmd_status = 0;
5000 		}
5001 		break;
5002 	default:
5003 		con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
5004 		    "invalid driver specific IOCTL opcode = 0x%x",
5005 		    kdcmd->opcode));
5006 		kdcmd->cmd_status = 1;
5007 		rval = DDI_FAILURE;
5008 		break;
5009 	}
5010 
5011 	return (rval);
5012 }
5013 
5014 /*
5015  * handle_mfi_ioctl
5016  */
5017 static int
5018 handle_mfi_ioctl(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
5019     int mode)
5020 {
5021 	int	rval = DDI_SUCCESS;
5022 
5023 	struct mrsas_header	*hdr;
5024 	struct mrsas_cmd	*cmd;
5025 
5026 	cmd = get_mfi_pkt(instance);
5027 
5028 	if (!cmd) {
5029 		con_log(CL_ANN, (CE_WARN, "mr_sas: "
5030 		    "failed to get a cmd packet"));
5031 		DTRACE_PROBE2(mfi_ioctl_err, uint16_t,
5032 		    instance->fw_outstanding, uint16_t, instance->max_fw_cmds);
5033 		return (DDI_FAILURE);
5034 	}
5035 	cmd->retry_count_for_ocr = 0;
5036 
5037 	/* Clear the frame buffer and assign back the context id */
5038 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
5039 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
5040 	    cmd->index);
5041 
5042 	hdr = (struct mrsas_header *)&ioctl->frame[0];
5043 
5044 	switch (ddi_get8(cmd->frame_dma_obj.acc_handle, &hdr->cmd)) {
5045 	case MFI_CMD_OP_DCMD:
5046 		rval = issue_mfi_dcmd(instance, ioctl, cmd, mode);
5047 		break;
5048 	case MFI_CMD_OP_SMP:
5049 		rval = issue_mfi_smp(instance, ioctl, cmd, mode);
5050 		break;
5051 	case MFI_CMD_OP_STP:
5052 		rval = issue_mfi_stp(instance, ioctl, cmd, mode);
5053 		break;
5054 	case MFI_CMD_OP_LD_SCSI:
5055 	case MFI_CMD_OP_PD_SCSI:
5056 		rval = issue_mfi_pthru(instance, ioctl, cmd, mode);
5057 		break;
5058 	default:
5059 		con_log(CL_ANN, (CE_WARN, "handle_mfi_ioctl: "
5060 		    "invalid mfi ioctl hdr->cmd = %d", hdr->cmd));
5061 		rval = DDI_FAILURE;
5062 		break;
5063 	}
5064 
5065 	if (mrsas_common_check(instance, cmd) != DDI_SUCCESS)
5066 		rval = DDI_FAILURE;
5067 
5068 	return_mfi_pkt(instance, cmd);
5069 
5070 	return (rval);
5071 }
5072 
5073 /*
5074  * AEN
5075  */
5076 static int
5077 handle_mfi_aen(struct mrsas_instance *instance, struct mrsas_aen *aen)
5078 {
5079 	int	rval = 0;
5080 
5081 	rval = register_mfi_aen(instance, instance->aen_seq_num,
5082 	    aen->class_locale_word);
5083 
5084 	aen->cmd_status = (uint8_t)rval;
5085 
5086 	return (rval);
5087 }
5088 
5089 static int
5090 register_mfi_aen(struct mrsas_instance *instance, uint32_t seq_num,
5091     uint32_t class_locale_word)
5092 {
5093 	int	ret_val;
5094 
5095 	struct mrsas_cmd	*cmd, *aen_cmd;
5096 	struct mrsas_dcmd_frame	*dcmd;
5097 	union mrsas_evt_class_locale	curr_aen;
5098 	union mrsas_evt_class_locale	prev_aen;
5099 
5100 	/*
5101 	 * If there an AEN pending already (aen_cmd), check if the
5102 	 * class_locale of that pending AEN is inclusive of the new
5103 	 * AEN request we currently have. If it is, then we don't have
5104 	 * to do anything. In other words, whichever events the current
5105 	 * AEN request is subscribing to, have already been subscribed
5106 	 * to.
5107 	 *
5108 	 * If the old_cmd is _not_ inclusive, then we have to abort
5109 	 * that command, form a class_locale that is superset of both
5110 	 * old and current and re-issue to the FW
5111 	 */
5112 
5113 	curr_aen.word = LE_32(class_locale_word);
5114 	curr_aen.members.locale = LE_16(curr_aen.members.locale);
5115 	aen_cmd = instance->aen_cmd;
5116 	if (aen_cmd) {
5117 		prev_aen.word = ddi_get32(aen_cmd->frame_dma_obj.acc_handle,
5118 		    &aen_cmd->frame->dcmd.mbox.w[1]);
5119 		prev_aen.word = LE_32(prev_aen.word);
5120 		prev_aen.members.locale = LE_16(prev_aen.members.locale);
5121 		/*
5122 		 * A class whose enum value is smaller is inclusive of all
5123 		 * higher values. If a PROGRESS (= -1) was previously
5124 		 * registered, then a new registration requests for higher
5125 		 * classes need not be sent to FW. They are automatically
5126 		 * included.
5127 		 *
5128 		 * Locale numbers don't have such hierarchy. They are bitmap
5129 		 * values
5130 		 */
5131 		if ((prev_aen.members.class <= curr_aen.members.class) &&
5132 		    !((prev_aen.members.locale & curr_aen.members.locale) ^
5133 		    curr_aen.members.locale)) {
5134 			/*
5135 			 * Previously issued event registration includes
5136 			 * current request. Nothing to do.
5137 			 */
5138 
5139 			return (0);
5140 		} else {
5141 			curr_aen.members.locale |= prev_aen.members.locale;
5142 
5143 			if (prev_aen.members.class < curr_aen.members.class)
5144 				curr_aen.members.class = prev_aen.members.class;
5145 
5146 			ret_val = abort_aen_cmd(instance, aen_cmd);
5147 
5148 			if (ret_val) {
5149 				con_log(CL_ANN, (CE_WARN, "register_mfi_aen: "
5150 				    "failed to abort prevous AEN command"));
5151 
5152 				return (ret_val);
5153 			}
5154 		}
5155 	} else {
5156 		curr_aen.word = LE_32(class_locale_word);
5157 		curr_aen.members.locale = LE_16(curr_aen.members.locale);
5158 	}
5159 
5160 	cmd = get_mfi_pkt(instance);
5161 
5162 	if (!cmd) {
5163 		DTRACE_PROBE2(mfi_aen_err, uint16_t, instance->fw_outstanding,
5164 		    uint16_t, instance->max_fw_cmds);
5165 		return (ENOMEM);
5166 	}
5167 	cmd->retry_count_for_ocr = 0;
5168 	/* Clear the frame buffer and assign back the context id */
5169 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
5170 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
5171 	    cmd->index);
5172 
5173 	dcmd = &cmd->frame->dcmd;
5174 
5175 	/* for(i = 0; i < DCMD_MBOX_SZ; i++) dcmd->mbox.b[i] = 0; */
5176 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
5177 
5178 	(void) memset(instance->mfi_evt_detail_obj.buffer, 0,
5179 	    sizeof (struct mrsas_evt_detail));
5180 
5181 	/* Prepare DCMD for aen registration */
5182 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
5183 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status, 0x0);
5184 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 1);
5185 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
5186 	    MFI_FRAME_DIR_READ);
5187 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
5188 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len,
5189 	    sizeof (struct mrsas_evt_detail));
5190 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
5191 	    MR_DCMD_CTRL_EVENT_WAIT);
5192 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->mbox.w[0], seq_num);
5193 	curr_aen.members.locale = LE_16(curr_aen.members.locale);
5194 	curr_aen.word = LE_32(curr_aen.word);
5195 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->mbox.w[1],
5196 	    curr_aen.word);
5197 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].phys_addr,
5198 	    instance->mfi_evt_detail_obj.dma_cookie[0].dmac_address);
5199 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].length,
5200 	    sizeof (struct mrsas_evt_detail));
5201 
5202 	instance->aen_seq_num = seq_num;
5203 
5204 
5205 	/*
5206 	 * Store reference to the cmd used to register for AEN. When an
5207 	 * application wants us to register for AEN, we have to abort this
5208 	 * cmd and re-register with a new EVENT LOCALE supplied by that app
5209 	 */
5210 	instance->aen_cmd = cmd;
5211 
5212 	cmd->frame_count = 1;
5213 
5214 	/* Issue the aen registration frame */
5215 	/* atomic_add_16 (&instance->fw_outstanding, 1); */
5216 	instance->func_ptr->issue_cmd(cmd, instance);
5217 
5218 	return (0);
5219 }
5220 
5221 static void
5222 display_scsi_inquiry(caddr_t scsi_inq)
5223 {
5224 #define	MAX_SCSI_DEVICE_CODE	14
5225 	int		i;
5226 	char		inquiry_buf[256] = {0};
5227 	int		len;
5228 	const char	*const scsi_device_types[] = {
5229 		"Direct-Access    ",
5230 		"Sequential-Access",
5231 		"Printer          ",
5232 		"Processor        ",
5233 		"WORM             ",
5234 		"CD-ROM           ",
5235 		"Scanner          ",
5236 		"Optical Device   ",
5237 		"Medium Changer   ",
5238 		"Communications   ",
5239 		"Unknown          ",
5240 		"Unknown          ",
5241 		"Unknown          ",
5242 		"Enclosure        ",
5243 	};
5244 
5245 	len = 0;
5246 
5247 	len += snprintf(inquiry_buf + len, 265 - len, "  Vendor: ");
5248 	for (i = 8; i < 16; i++) {
5249 		len += snprintf(inquiry_buf + len, 265 - len, "%c",
5250 		    scsi_inq[i]);
5251 	}
5252 
5253 	len += snprintf(inquiry_buf + len, 265 - len, "  Model: ");
5254 
5255 	for (i = 16; i < 32; i++) {
5256 		len += snprintf(inquiry_buf + len, 265 - len, "%c",
5257 		    scsi_inq[i]);
5258 	}
5259 
5260 	len += snprintf(inquiry_buf + len, 265 - len, "  Rev: ");
5261 
5262 	for (i = 32; i < 36; i++) {
5263 		len += snprintf(inquiry_buf + len, 265 - len, "%c",
5264 		    scsi_inq[i]);
5265 	}
5266 
5267 	len += snprintf(inquiry_buf + len, 265 - len, "\n");
5268 
5269 
5270 	i = scsi_inq[0] & 0x1f;
5271 
5272 
5273 	len += snprintf(inquiry_buf + len, 265 - len, "  Type:   %s ",
5274 	    i < MAX_SCSI_DEVICE_CODE ? scsi_device_types[i] :
5275 	    "Unknown          ");
5276 
5277 
5278 	len += snprintf(inquiry_buf + len, 265 - len,
5279 	    "                 ANSI SCSI revision: %02x", scsi_inq[2] & 0x07);
5280 
5281 	if ((scsi_inq[2] & 0x07) == 1 && (scsi_inq[3] & 0x0f) == 1) {
5282 		len += snprintf(inquiry_buf + len, 265 - len, " CCS\n");
5283 	} else {
5284 		len += snprintf(inquiry_buf + len, 265 - len, "\n");
5285 	}
5286 
5287 	con_log(CL_ANN1, (CE_CONT, inquiry_buf));
5288 }
5289 
5290 static void
5291 io_timeout_checker(void *arg)
5292 {
5293 	struct scsi_pkt *pkt;
5294 	struct mrsas_instance *instance = arg;
5295 	struct mrsas_cmd	*cmd = NULL;
5296 	struct mrsas_header	*hdr;
5297 	int time = 0;
5298 	int counter = 0;
5299 	struct mlist_head	*pos, *next;
5300 	mlist_t			process_list;
5301 
5302 	instance->timeout_id = (timeout_id_t)-1;
5303 	if (instance->adapterresetinprogress == 1) {
5304 		con_log(CL_ANN1, (CE_NOTE, "io_timeout_checker"
5305 		    " reset in progress"));
5306 		instance->timeout_id = timeout(io_timeout_checker,
5307 		    (void *) instance, drv_usectohz(MRSAS_1_SECOND));
5308 		return;
5309 	}
5310 
5311 	/* See if this check needs to be in the beginning or last in ISR */
5312 	if (mrsas_initiate_ocr_if_fw_is_faulty(instance) ==  1) {
5313 		con_log(CL_ANN1, (CE_NOTE,
5314 		    "Fw Fault state Handling in io_timeout_checker"));
5315 		if (instance->adapterresetinprogress == 0) {
5316 			(void) mrsas_reset_ppc(instance);
5317 		}
5318 		instance->timeout_id = timeout(io_timeout_checker,
5319 		    (void *) instance, drv_usectohz(MRSAS_1_SECOND));
5320 		return;
5321 	}
5322 
5323 	INIT_LIST_HEAD(&process_list);
5324 
5325 	mutex_enter(&instance->cmd_pend_mtx);
5326 	mlist_for_each_safe(pos, next, &instance->cmd_pend_list) {
5327 	cmd = mlist_entry(pos, struct mrsas_cmd, list);
5328 
5329 	if (cmd == NULL) {
5330 		continue;
5331 	}
5332 
5333 	if (cmd->sync_cmd == MRSAS_TRUE) {
5334 		hdr = (struct mrsas_header *)&cmd->frame->hdr;
5335 		if (hdr == NULL) {
5336 			continue;
5337 		}
5338 		time = --hdr->timeout;
5339 		} else {
5340 			pkt = cmd->pkt;
5341 			if (pkt == NULL) {
5342 				continue;
5343 			}
5344 			time = --cmd->drv_pkt_time;
5345 		}
5346 		if (time <= 0) {
5347 			con_log(CL_ANN1, (CE_NOTE, "%llx: "
5348 			    "io_timeout_checker: TIMING OUT: pkt "
5349 			    ": %p, cmd %p", gethrtime(), (void *)pkt,
5350 			    (void *)cmd));
5351 			counter++;
5352 			break;
5353 		}
5354 	}
5355 	mutex_exit(&instance->cmd_pend_mtx);
5356 
5357 	if (counter) {
5358 		con_log(CL_ANN1, (CE_NOTE,
5359 		    "io_timeout_checker "
5360 		    "cmd->retrycount_for_ocr %d, "
5361 		    "cmd index %d , cmd address %p ",
5362 		    cmd->retry_count_for_ocr+1, cmd->index, (void *)cmd));
5363 
5364 		if (instance->disable_online_ctrl_reset == 1) {
5365 			con_log(CL_ANN1, (CE_NOTE, "mrsas: "
5366 			    "OCR is not supported by the Firmware "
5367 			    "Failing all the queued packets \n"));
5368 
5369 			(void) mrsas_kill_adapter(instance);
5370 		} else {
5371 			if (cmd->retry_count_for_ocr <=  IO_RETRY_COUNT) {
5372 				if (instance->adapterresetinprogress == 0) {
5373 				con_log(CL_ANN1, (CE_NOTE, "mrsas: "
5374 				    "OCR is supported by FW "
5375 				    "triggering  mrsas_reset_ppc"));
5376 				(void) mrsas_reset_ppc(instance);
5377 				}
5378 			} else {
5379 				con_log(CL_ANN1, (CE_NOTE,
5380 				    "io_timeout_checker:"
5381 				    " cmdindex: %d,cmd address: %p "
5382 				    "timed out even after 3 resets: "
5383 				    "so kill adapter", cmd->index,
5384 				    (void *)cmd));
5385 				(void) mrsas_kill_adapter(instance);
5386 				return;
5387 			}
5388 		}
5389 	}
5390 
5391 
5392 	if (!mlist_empty(&instance->cmd_pend_list)) {
5393 		con_log(CL_ANN1, (CE_NOTE, "mrsas: "
5394 		    "schedule next timeout check: "
5395 		    "do timeout \n"));
5396 		if (instance->timeout_id == (timeout_id_t)-1) {
5397 			instance->timeout_id =
5398 			    timeout(io_timeout_checker, (void *)instance,
5399 			    drv_usectohz(MRSAS_1_SECOND));
5400 		}
5401 	}
5402 
5403 }
5404 static int
5405 read_fw_status_reg_ppc(struct mrsas_instance *instance)
5406 {
5407 	return ((int)RD_OB_SCRATCH_PAD_0(instance));
5408 }
5409 
5410 static void
5411 issue_cmd_ppc(struct mrsas_cmd *cmd, struct mrsas_instance *instance)
5412 {
5413 	struct scsi_pkt *pkt;
5414 	atomic_add_16(&instance->fw_outstanding, 1);
5415 
5416 	pkt = cmd->pkt;
5417 	if (pkt) {
5418 		con_log(CL_ANN1, (CE_CONT, "%llx : issue_cmd_ppc:"
5419 		    "ISSUED CMD TO FW : called : cmd:"
5420 		    ": %p instance : %p pkt : %p pkt_time : %x\n",
5421 		    gethrtime(), (void *)cmd, (void *)instance,
5422 		    (void *)pkt, cmd->drv_pkt_time));
5423 		if (instance->adapterresetinprogress) {
5424 			cmd->drv_pkt_time = (uint16_t)debug_timeout_g;
5425 			con_log(CL_ANN1, (CE_NOTE, "Reset the scsi_pkt timer"));
5426 		} else {
5427 			cmd->drv_pkt_time = (uint16_t)debug_timeout_g;
5428 			push_pending_mfi_pkt(instance, cmd);
5429 		}
5430 
5431 		if (pkt) {
5432 			con_log(CL_ANN1, (CE_NOTE,
5433 			    "TO ISSUE: cmd %p index %x "
5434 			    "pkt %p time %llx",
5435 			    (void *)cmd, cmd->index, (void *)pkt,
5436 			    gethrtime()));
5437 		}
5438 	} else {
5439 		con_log(CL_ANN1, (CE_CONT, "%llx : issue_cmd_ppc:"
5440 		    "ISSUED CMD TO FW : called : cmd : %p, instance: %p"
5441 		    "(NO PKT)\n", gethrtime(), (void *)cmd, (void *)instance));
5442 	}
5443 	/* Issue the command to the FW */
5444 	WR_IB_QPORT((cmd->frame_phys_addr) |
5445 	    (((cmd->frame_count - 1) << 1) | 1), instance);
5446 }
5447 
5448 /*
5449  * issue_cmd_in_sync_mode
5450  */
5451 static int
5452 issue_cmd_in_sync_mode_ppc(struct mrsas_instance *instance,
5453 struct mrsas_cmd *cmd)
5454 {
5455 	int	i;
5456 	uint32_t	msecs = MFI_POLL_TIMEOUT_SECS * (10 * MILLISEC);
5457 
5458 	con_log(CL_ANN1, (CE_NOTE, "issue_cmd_in_sync_mode_ppc: called"));
5459 
5460 	if (instance->adapterresetinprogress) {
5461 		con_log(CL_ANN1, (CE_NOTE, "sync_mode_ppc: "
5462 		    "issue and return in reset case\n"));
5463 		WR_IB_QPORT((cmd->frame_phys_addr) |
5464 		    (((cmd->frame_count - 1) << 1) | 1), instance);
5465 		return (DDI_SUCCESS);
5466 	} else {
5467 		con_log(CL_ANN1, (CE_NOTE, "sync_mode_ppc: pushing the pkt\n"));
5468 		push_pending_mfi_pkt(instance, cmd);
5469 	}
5470 
5471 	cmd->cmd_status	= ENODATA;
5472 
5473 	WR_IB_QPORT((cmd->frame_phys_addr) |
5474 	    (((cmd->frame_count - 1) << 1) | 1), instance);
5475 
5476 	mutex_enter(&instance->int_cmd_mtx);
5477 
5478 	for (i = 0; i < msecs && (cmd->cmd_status == ENODATA); i++) {
5479 		cv_wait(&instance->int_cmd_cv, &instance->int_cmd_mtx);
5480 	}
5481 
5482 	mutex_exit(&instance->int_cmd_mtx);
5483 
5484 	con_log(CL_ANN1, (CE_NOTE, "issue_cmd_in_sync_mode_ppc: done"));
5485 
5486 	if (i < (msecs -1)) {
5487 		return (DDI_SUCCESS);
5488 	} else {
5489 		return (DDI_FAILURE);
5490 	}
5491 }
5492 
5493 /*
5494  * issue_cmd_in_poll_mode
5495  */
5496 static int
5497 issue_cmd_in_poll_mode_ppc(struct mrsas_instance *instance,
5498     struct mrsas_cmd *cmd)
5499 {
5500 	int		i;
5501 	uint16_t	flags;
5502 	uint32_t	msecs = MFI_POLL_TIMEOUT_SECS * MILLISEC;
5503 	struct mrsas_header *frame_hdr;
5504 
5505 	con_log(CL_ANN1, (CE_NOTE, "issue_cmd_in_poll_mode_ppc: called"));
5506 
5507 	frame_hdr = (struct mrsas_header *)cmd->frame;
5508 	ddi_put8(cmd->frame_dma_obj.acc_handle, &frame_hdr->cmd_status,
5509 	    MFI_CMD_STATUS_POLL_MODE);
5510 	flags = ddi_get16(cmd->frame_dma_obj.acc_handle, &frame_hdr->flags);
5511 	flags 	|= MFI_FRAME_DONT_POST_IN_REPLY_QUEUE;
5512 
5513 	ddi_put16(cmd->frame_dma_obj.acc_handle, &frame_hdr->flags, flags);
5514 
5515 	/* issue the frame using inbound queue port */
5516 	WR_IB_QPORT((cmd->frame_phys_addr) |
5517 	    (((cmd->frame_count - 1) << 1) | 1), instance);
5518 
5519 	/* wait for cmd_status to change from 0xFF */
5520 	for (i = 0; i < msecs && (
5521 	    ddi_get8(cmd->frame_dma_obj.acc_handle, &frame_hdr->cmd_status)
5522 	    == MFI_CMD_STATUS_POLL_MODE); i++) {
5523 		drv_usecwait(MILLISEC); /* wait for 1000 usecs */
5524 	}
5525 
5526 	if (ddi_get8(cmd->frame_dma_obj.acc_handle, &frame_hdr->cmd_status)
5527 	    == MFI_CMD_STATUS_POLL_MODE) {
5528 		con_log(CL_ANN1, (CE_NOTE, "issue_cmd_in_poll_mode: "
5529 		    "cmd polling timed out"));
5530 		return (DDI_FAILURE);
5531 	}
5532 
5533 	return (DDI_SUCCESS);
5534 }
5535 
5536 static void
5537 enable_intr_ppc(struct mrsas_instance *instance)
5538 {
5539 	uint32_t	mask;
5540 
5541 	con_log(CL_ANN1, (CE_NOTE, "enable_intr_ppc: called"));
5542 
5543 	/* WR_OB_DOORBELL_CLEAR(0xFFFFFFFF, instance); */
5544 	WR_OB_DOORBELL_CLEAR(OB_DOORBELL_CLEAR_MASK, instance);
5545 
5546 	/* WR_OB_INTR_MASK(~0x80000000, instance); */
5547 	WR_OB_INTR_MASK(~(MFI_REPLY_2108_MESSAGE_INTR_MASK), instance);
5548 
5549 	/* dummy read to force PCI flush */
5550 	mask = RD_OB_INTR_MASK(instance);
5551 
5552 	con_log(CL_ANN1, (CE_NOTE, "enable_intr_ppc: "
5553 	    "outbound_intr_mask = 0x%x", mask));
5554 }
5555 
5556 static void
5557 disable_intr_ppc(struct mrsas_instance *instance)
5558 {
5559 	uint32_t	mask;
5560 
5561 	con_log(CL_ANN1, (CE_NOTE, "disable_intr_ppc: called"));
5562 
5563 	con_log(CL_ANN1, (CE_NOTE, "disable_intr_ppc: before : "
5564 	    "outbound_intr_mask = 0x%x", RD_OB_INTR_MASK(instance)));
5565 
5566 	/* WR_OB_INTR_MASK(0xFFFFFFFF, instance); */
5567 	WR_OB_INTR_MASK(OB_INTR_MASK, instance);
5568 
5569 	con_log(CL_ANN1, (CE_NOTE, "disable_intr_ppc: after : "
5570 	    "outbound_intr_mask = 0x%x", RD_OB_INTR_MASK(instance)));
5571 
5572 	/* dummy read to force PCI flush */
5573 	mask = RD_OB_INTR_MASK(instance);
5574 #ifdef lint
5575 	mask = mask;
5576 #endif
5577 }
5578 
5579 static int
5580 intr_ack_ppc(struct mrsas_instance *instance)
5581 {
5582 	uint32_t	status;
5583 	int ret = DDI_INTR_CLAIMED;
5584 
5585 	con_log(CL_ANN1, (CE_NOTE, "intr_ack_ppc: called"));
5586 
5587 	/* check if it is our interrupt */
5588 	status = RD_OB_INTR_STATUS(instance);
5589 
5590 	con_log(CL_ANN1, (CE_NOTE, "intr_ack_ppc: status = 0x%x", status));
5591 
5592 	if (!(status & MFI_REPLY_2108_MESSAGE_INTR)) {
5593 		ret = DDI_INTR_UNCLAIMED;
5594 	}
5595 
5596 	if (mrsas_check_acc_handle(instance->regmap_handle) != DDI_SUCCESS) {
5597 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
5598 		ret = DDI_INTR_UNCLAIMED;
5599 	}
5600 
5601 	if (ret == DDI_INTR_UNCLAIMED) {
5602 		return (ret);
5603 	}
5604 	/* clear the interrupt by writing back the same value */
5605 	WR_OB_DOORBELL_CLEAR(status, instance);
5606 
5607 	/* dummy READ */
5608 	status = RD_OB_INTR_STATUS(instance);
5609 
5610 	con_log(CL_ANN1, (CE_NOTE, "intr_ack_ppc: interrupt cleared"));
5611 
5612 	return (ret);
5613 }
5614 
5615 /*
5616  * Marks HBA as bad. This will be called either when an
5617  * IO packet times out even after 3 FW resets
5618  * or FW is found to be fault even after 3 continuous resets.
5619  */
5620 
5621 static int
5622 mrsas_kill_adapter(struct mrsas_instance *instance)
5623 {
5624 		if (instance->deadadapter == 1)
5625 			return (DDI_FAILURE);
5626 
5627 		con_log(CL_ANN1, (CE_NOTE, "mrsas_kill_adapter: "
5628 		    "Writing to doorbell with MFI_STOP_ADP "));
5629 		mutex_enter(&instance->ocr_flags_mtx);
5630 		instance->deadadapter = 1;
5631 		mutex_exit(&instance->ocr_flags_mtx);
5632 		instance->func_ptr->disable_intr(instance);
5633 		WR_IB_DOORBELL(MFI_STOP_ADP, instance);
5634 		(void) mrsas_complete_pending_cmds(instance);
5635 		return (DDI_SUCCESS);
5636 }
5637 
5638 
5639 static int
5640 mrsas_reset_ppc(struct mrsas_instance *instance)
5641 {
5642 	uint32_t status;
5643 	uint32_t retry = 0;
5644 	uint32_t cur_abs_reg_val;
5645 	uint32_t fw_state;
5646 
5647 	if (instance->deadadapter == 1) {
5648 		con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
5649 		    "no more resets as HBA has been marked dead "));
5650 		return (DDI_FAILURE);
5651 	}
5652 	mutex_enter(&instance->ocr_flags_mtx);
5653 	instance->adapterresetinprogress = 1;
5654 	mutex_exit(&instance->ocr_flags_mtx);
5655 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: adpterresetinprogress "
5656 	    "flag set, time %llx", gethrtime()));
5657 	instance->func_ptr->disable_intr(instance);
5658 retry_reset:
5659 	WR_IB_WRITE_SEQ(0, instance);
5660 	WR_IB_WRITE_SEQ(4, instance);
5661 	WR_IB_WRITE_SEQ(0xb, instance);
5662 	WR_IB_WRITE_SEQ(2, instance);
5663 	WR_IB_WRITE_SEQ(7, instance);
5664 	WR_IB_WRITE_SEQ(0xd, instance);
5665 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: magic number written "
5666 	    "to write sequence register\n"));
5667 	delay(100 * drv_usectohz(MILLISEC));
5668 	status = RD_OB_DRWE(instance);
5669 
5670 	while (!(status & DIAG_WRITE_ENABLE)) {
5671 		delay(100 * drv_usectohz(MILLISEC));
5672 		status = RD_OB_DRWE(instance);
5673 		if (retry++ == 100) {
5674 			con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: DRWE bit "
5675 			    "check retry count %d\n", retry));
5676 			return (DDI_FAILURE);
5677 		}
5678 	}
5679 	WR_IB_DRWE(status | DIAG_RESET_ADAPTER, instance);
5680 	delay(100 * drv_usectohz(MILLISEC));
5681 	status = RD_OB_DRWE(instance);
5682 	while (status & DIAG_RESET_ADAPTER) {
5683 		delay(100 * drv_usectohz(MILLISEC));
5684 		status = RD_OB_DRWE(instance);
5685 		if (retry++ == 100) {
5686 			(void) mrsas_kill_adapter(instance);
5687 			return (DDI_FAILURE);
5688 		}
5689 	}
5690 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: Adapter reset complete"));
5691 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
5692 	    "Calling mfi_state_transition_to_ready"));
5693 
5694 	/* Mark HBA as bad, if FW is fault after 3 continuous resets */
5695 	if (mfi_state_transition_to_ready(instance) ||
5696 	    debug_fw_faults_after_ocr_g == 1) {
5697 		cur_abs_reg_val =
5698 		    instance->func_ptr->read_fw_status_reg(instance);
5699 		fw_state	= cur_abs_reg_val & MFI_STATE_MASK;
5700 
5701 #ifdef OCRDEBUG
5702 		con_log(CL_ANN1, (CE_NOTE,
5703 		    "mrsas_reset_ppc :before fake: FW is not ready "
5704 		    "FW state = 0x%x", fw_state));
5705 		if (debug_fw_faults_after_ocr_g == 1)
5706 			fw_state = MFI_STATE_FAULT;
5707 #endif
5708 
5709 		con_log(CL_ANN1, (CE_NOTE,  "mrsas_reset_ppc : FW is not ready "
5710 		    "FW state = 0x%x", fw_state));
5711 
5712 		if (fw_state == MFI_STATE_FAULT) {
5713 			// increment the count
5714 			instance->fw_fault_count_after_ocr++;
5715 			if (instance->fw_fault_count_after_ocr
5716 			    < MAX_FW_RESET_COUNT) {
5717 				con_log(CL_ANN1, (CE_WARN, "mrsas_reset_ppc: "
5718 				    "FW is in fault after OCR count %d ",
5719 				    instance->fw_fault_count_after_ocr));
5720 				goto retry_reset;
5721 
5722 			} else {
5723 				con_log(CL_ANN1, (CE_WARN, "mrsas_reset_ppc: "
5724 				    "Max Reset Count exceeded "
5725 				    "Mark HBA as bad"));
5726 				(void) mrsas_kill_adapter(instance);
5727 				return (DDI_FAILURE);
5728 			}
5729 		}
5730 	}
5731 	// reset the counter as FW is up after OCR
5732 	instance->fw_fault_count_after_ocr = 0;
5733 
5734 
5735 	ddi_put32(instance->mfi_internal_dma_obj.acc_handle,
5736 	    instance->producer, 0);
5737 
5738 	ddi_put32(instance->mfi_internal_dma_obj.acc_handle,
5739 	    instance->consumer, 0);
5740 
5741 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
5742 	    " after resetting produconsumer chck indexs:"
5743 	    "producer %x consumer %x", *instance->producer,
5744 	    *instance->consumer));
5745 
5746 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
5747 	    "Calling mrsas_issue_init_mfi"));
5748 	(void) mrsas_issue_init_mfi(instance);
5749 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
5750 	    "mrsas_issue_init_mfi Done"));
5751 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
5752 	    "Calling mrsas_print_pending_cmd\n"));
5753 	(void) mrsas_print_pending_cmds(instance);
5754 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
5755 	    "mrsas_print_pending_cmd done\n"));
5756 	instance->func_ptr->enable_intr(instance);
5757 	instance->fw_outstanding = 0;
5758 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
5759 	    "Calling mrsas_issue_pending_cmds"));
5760 	(void) mrsas_issue_pending_cmds(instance);
5761 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
5762 	"Complete"));
5763 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
5764 	    "Calling aen registration"));
5765 	instance->func_ptr->issue_cmd(instance->aen_cmd, instance);
5766 	con_log(CL_ANN1, (CE_NOTE, "Unsetting adpresetinprogress flag.\n"));
5767 	mutex_enter(&instance->ocr_flags_mtx);
5768 	instance->adapterresetinprogress = 0;
5769 	mutex_exit(&instance->ocr_flags_mtx);
5770 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
5771 	    "adpterresetinprogress flag unset"));
5772 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc done\n"));
5773 	return (DDI_SUCCESS);
5774 }
5775 static int
5776 mrsas_common_check(struct mrsas_instance *instance,
5777     struct  mrsas_cmd *cmd)
5778 {
5779 	int ret = DDI_SUCCESS;
5780 
5781 	if (mrsas_check_dma_handle(cmd->frame_dma_obj.dma_handle) !=
5782 	    DDI_SUCCESS) {
5783 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
5784 		if (cmd->pkt != NULL) {
5785 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
5786 			cmd->pkt->pkt_statistics = 0;
5787 		}
5788 		ret = DDI_FAILURE;
5789 	}
5790 	if (mrsas_check_dma_handle(instance->mfi_internal_dma_obj.dma_handle)
5791 	    != DDI_SUCCESS) {
5792 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
5793 		if (cmd->pkt != NULL) {
5794 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
5795 			cmd->pkt->pkt_statistics = 0;
5796 		}
5797 		ret = DDI_FAILURE;
5798 	}
5799 	if (mrsas_check_dma_handle(instance->mfi_evt_detail_obj.dma_handle) !=
5800 	    DDI_SUCCESS) {
5801 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
5802 		if (cmd->pkt != NULL) {
5803 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
5804 			cmd->pkt->pkt_statistics = 0;
5805 		}
5806 		ret = DDI_FAILURE;
5807 	}
5808 	if (mrsas_check_acc_handle(instance->regmap_handle) != DDI_SUCCESS) {
5809 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
5810 
5811 		ddi_fm_acc_err_clear(instance->regmap_handle, DDI_FME_VER0);
5812 
5813 		if (cmd->pkt != NULL) {
5814 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
5815 			cmd->pkt->pkt_statistics = 0;
5816 		}
5817 		ret = DDI_FAILURE;
5818 	}
5819 
5820 	return (ret);
5821 }
5822 
5823 /*ARGSUSED*/
5824 static int
5825 mrsas_fm_error_cb(dev_info_t *dip, ddi_fm_error_t *err, const void *impl_data)
5826 {
5827 	/*
5828 	 * as the driver can always deal with an error in any dma or
5829 	 * access handle, we can just return the fme_status value.
5830 	 */
5831 	pci_ereport_post(dip, err, NULL);
5832 	return (err->fme_status);
5833 }
5834 
5835 static void
5836 mrsas_fm_init(struct mrsas_instance *instance)
5837 {
5838 	/* Need to change iblock to priority for new MSI intr */
5839 	ddi_iblock_cookie_t fm_ibc;
5840 
5841 	/* Only register with IO Fault Services if we have some capability */
5842 	if (instance->fm_capabilities) {
5843 		/* Adjust access and dma attributes for FMA */
5844 		endian_attr.devacc_attr_access = DDI_FLAGERR_ACC;
5845 		mrsas_generic_dma_attr.dma_attr_flags = DDI_DMA_FLAGERR;
5846 
5847 		/*
5848 		 * Register capabilities with IO Fault Services.
5849 		 * fm_capabilities will be updated to indicate
5850 		 * capabilities actually supported (not requested.)
5851 		 */
5852 
5853 		ddi_fm_init(instance->dip, &instance->fm_capabilities, &fm_ibc);
5854 
5855 		/*
5856 		 * Initialize pci ereport capabilities if ereport
5857 		 * capable (should always be.)
5858 		 */
5859 
5860 		if (DDI_FM_EREPORT_CAP(instance->fm_capabilities) ||
5861 		    DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
5862 			pci_ereport_setup(instance->dip);
5863 		}
5864 
5865 		/*
5866 		 * Register error callback if error callback capable.
5867 		 */
5868 		if (DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
5869 			ddi_fm_handler_register(instance->dip,
5870 			    mrsas_fm_error_cb, (void*) instance);
5871 		}
5872 	} else {
5873 		endian_attr.devacc_attr_access = DDI_DEFAULT_ACC;
5874 		mrsas_generic_dma_attr.dma_attr_flags = 0;
5875 	}
5876 }
5877 
5878 static void
5879 mrsas_fm_fini(struct mrsas_instance *instance)
5880 {
5881 	/* Only unregister FMA capabilities if registered */
5882 	if (instance->fm_capabilities) {
5883 		/*
5884 		 * Un-register error callback if error callback capable.
5885 		 */
5886 		if (DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
5887 			ddi_fm_handler_unregister(instance->dip);
5888 		}
5889 
5890 		/*
5891 		 * Release any resources allocated by pci_ereport_setup()
5892 		 */
5893 		if (DDI_FM_EREPORT_CAP(instance->fm_capabilities) ||
5894 		    DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
5895 			pci_ereport_teardown(instance->dip);
5896 		}
5897 
5898 		/* Unregister from IO Fault Services */
5899 		ddi_fm_fini(instance->dip);
5900 
5901 		/* Adjust access and dma attributes for FMA */
5902 		endian_attr.devacc_attr_access = DDI_DEFAULT_ACC;
5903 		mrsas_generic_dma_attr.dma_attr_flags = 0;
5904 	}
5905 }
5906 
5907 int
5908 mrsas_check_acc_handle(ddi_acc_handle_t handle)
5909 {
5910 	ddi_fm_error_t de;
5911 
5912 	if (handle == NULL) {
5913 		return (DDI_FAILURE);
5914 	}
5915 
5916 	ddi_fm_acc_err_get(handle, &de, DDI_FME_VERSION);
5917 
5918 	return (de.fme_status);
5919 }
5920 
5921 int
5922 mrsas_check_dma_handle(ddi_dma_handle_t handle)
5923 {
5924 	ddi_fm_error_t de;
5925 
5926 	if (handle == NULL) {
5927 		return (DDI_FAILURE);
5928 	}
5929 
5930 	ddi_fm_dma_err_get(handle, &de, DDI_FME_VERSION);
5931 
5932 	return (de.fme_status);
5933 }
5934 
5935 void
5936 mrsas_fm_ereport(struct mrsas_instance *instance, char *detail)
5937 {
5938 	uint64_t ena;
5939 	char buf[FM_MAX_CLASS];
5940 
5941 	(void) snprintf(buf, FM_MAX_CLASS, "%s.%s", DDI_FM_DEVICE, detail);
5942 	ena = fm_ena_generate(0, FM_ENA_FMT1);
5943 	if (DDI_FM_EREPORT_CAP(instance->fm_capabilities)) {
5944 		ddi_fm_ereport_post(instance->dip, buf, ena, DDI_NOSLEEP,
5945 		    FM_VERSION, DATA_TYPE_UINT8, FM_EREPORT_VERSION, NULL);
5946 	}
5947 }
5948 
5949 static int
5950 mrsas_add_intrs(struct mrsas_instance *instance, int intr_type)
5951 {
5952 
5953 	dev_info_t *dip = instance->dip;
5954 	int	avail, actual, count;
5955 	int	i, flag, ret;
5956 
5957 	con_log(CL_DLEVEL1, (CE_WARN, "mrsas_add_intrs: intr_type = %x",
5958 	    intr_type));
5959 
5960 	/* Get number of interrupts */
5961 	ret = ddi_intr_get_nintrs(dip, intr_type, &count);
5962 	if ((ret != DDI_SUCCESS) || (count == 0)) {
5963 		con_log(CL_ANN, (CE_WARN, "ddi_intr_get_nintrs() failed:"
5964 		    "ret %d count %d", ret, count));
5965 
5966 		return (DDI_FAILURE);
5967 	}
5968 
5969 	con_log(CL_DLEVEL1, (CE_WARN, "mrsas_add_intrs: count = %d ", count));
5970 
5971 	/* Get number of available interrupts */
5972 	ret = ddi_intr_get_navail(dip, intr_type, &avail);
5973 	if ((ret != DDI_SUCCESS) || (avail == 0)) {
5974 		con_log(CL_ANN, (CE_WARN, "ddi_intr_get_navail() failed:"
5975 		    "ret %d avail %d", ret, avail));
5976 
5977 		return (DDI_FAILURE);
5978 	}
5979 	con_log(CL_DLEVEL1, (CE_WARN, "mrsas_add_intrs: avail = %d ", avail));
5980 
5981 	/* Only one interrupt routine. So limit the count to 1 */
5982 	if (count > 1) {
5983 		count = 1;
5984 	}
5985 
5986 	/*
5987 	 * Allocate an array of interrupt handlers. Currently we support
5988 	 * only one interrupt. The framework can be extended later.
5989 	 */
5990 	instance->intr_size = count * sizeof (ddi_intr_handle_t);
5991 	instance->intr_htable = kmem_zalloc(instance->intr_size, KM_SLEEP);
5992 	ASSERT(instance->intr_htable);
5993 
5994 	flag = ((intr_type == DDI_INTR_TYPE_MSI) || (intr_type ==
5995 	    DDI_INTR_TYPE_MSIX)) ? DDI_INTR_ALLOC_STRICT:DDI_INTR_ALLOC_NORMAL;
5996 
5997 	/* Allocate interrupt */
5998 	ret = ddi_intr_alloc(dip, instance->intr_htable, intr_type, 0,
5999 	    count, &actual, flag);
6000 
6001 	if ((ret != DDI_SUCCESS) || (actual == 0)) {
6002 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
6003 		    "avail = %d", avail));
6004 		kmem_free(instance->intr_htable, instance->intr_size);
6005 		return (DDI_FAILURE);
6006 	}
6007 	if (actual < count) {
6008 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
6009 		    "Requested = %d  Received = %d", count, actual));
6010 	}
6011 	instance->intr_cnt = actual;
6012 
6013 	/*
6014 	 * Get the priority of the interrupt allocated.
6015 	 */
6016 	if ((ret = ddi_intr_get_pri(instance->intr_htable[0],
6017 	    &instance->intr_pri)) != DDI_SUCCESS) {
6018 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
6019 		    "get priority call failed"));
6020 
6021 		for (i = 0; i < actual; i++) {
6022 			(void) ddi_intr_free(instance->intr_htable[i]);
6023 		}
6024 		kmem_free(instance->intr_htable, instance->intr_size);
6025 		return (DDI_FAILURE);
6026 	}
6027 
6028 	/*
6029 	 * Test for high level mutex. we don't support them.
6030 	 */
6031 	if (instance->intr_pri >= ddi_intr_get_hilevel_pri()) {
6032 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
6033 		    "High level interrupts not supported."));
6034 
6035 		for (i = 0; i < actual; i++) {
6036 			(void) ddi_intr_free(instance->intr_htable[i]);
6037 		}
6038 		kmem_free(instance->intr_htable, instance->intr_size);
6039 		return (DDI_FAILURE);
6040 	}
6041 
6042 	con_log(CL_DLEVEL1, (CE_NOTE, "mrsas_add_intrs: intr_pri = 0x%x ",
6043 	    instance->intr_pri));
6044 
6045 	/* Call ddi_intr_add_handler() */
6046 	for (i = 0; i < actual; i++) {
6047 		ret = ddi_intr_add_handler(instance->intr_htable[i],
6048 		    (ddi_intr_handler_t *)mrsas_isr, (caddr_t)instance,
6049 		    (caddr_t)(uintptr_t)i);
6050 
6051 		if (ret != DDI_SUCCESS) {
6052 			con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs:"
6053 			    "failed %d", ret));
6054 
6055 			for (i = 0; i < actual; i++) {
6056 				(void) ddi_intr_free(instance->intr_htable[i]);
6057 			}
6058 			kmem_free(instance->intr_htable, instance->intr_size);
6059 			return (DDI_FAILURE);
6060 		}
6061 
6062 	}
6063 
6064 	con_log(CL_DLEVEL1, (CE_WARN, " ddi_intr_add_handler done"));
6065 
6066 	if ((ret = ddi_intr_get_cap(instance->intr_htable[0],
6067 	    &instance->intr_cap)) != DDI_SUCCESS) {
6068 		con_log(CL_ANN, (CE_WARN, "ddi_intr_get_cap() failed %d",
6069 		    ret));
6070 
6071 		/* Free already allocated intr */
6072 		for (i = 0; i < actual; i++) {
6073 			(void) ddi_intr_remove_handler(
6074 			    instance->intr_htable[i]);
6075 			(void) ddi_intr_free(instance->intr_htable[i]);
6076 		}
6077 		kmem_free(instance->intr_htable, instance->intr_size);
6078 		return (DDI_FAILURE);
6079 	}
6080 
6081 	if (instance->intr_cap &  DDI_INTR_FLAG_BLOCK) {
6082 		con_log(CL_ANN, (CE_WARN, "Calling ddi_intr_block _enable"));
6083 
6084 		(void) ddi_intr_block_enable(instance->intr_htable,
6085 		    instance->intr_cnt);
6086 	} else {
6087 		con_log(CL_ANN, (CE_NOTE, " calling ddi_intr_enable"));
6088 
6089 		for (i = 0; i < instance->intr_cnt; i++) {
6090 			(void) ddi_intr_enable(instance->intr_htable[i]);
6091 			con_log(CL_ANN, (CE_NOTE, "ddi intr enable returns "
6092 			    "%d", i));
6093 		}
6094 	}
6095 
6096 	return (DDI_SUCCESS);
6097 
6098 }
6099 
6100 
6101 static void
6102 mrsas_rem_intrs(struct mrsas_instance *instance)
6103 {
6104 	int i;
6105 
6106 	con_log(CL_ANN, (CE_NOTE, "mrsas_rem_intrs called"));
6107 
6108 	/* Disable all interrupts first */
6109 	if (instance->intr_cap & DDI_INTR_FLAG_BLOCK) {
6110 		(void) ddi_intr_block_disable(instance->intr_htable,
6111 		    instance->intr_cnt);
6112 	} else {
6113 		for (i = 0; i < instance->intr_cnt; i++) {
6114 			(void) ddi_intr_disable(instance->intr_htable[i]);
6115 		}
6116 	}
6117 
6118 	/* Remove all the handlers */
6119 
6120 	for (i = 0; i < instance->intr_cnt; i++) {
6121 		(void) ddi_intr_remove_handler(instance->intr_htable[i]);
6122 		(void) ddi_intr_free(instance->intr_htable[i]);
6123 	}
6124 
6125 	kmem_free(instance->intr_htable, instance->intr_size);
6126 }
6127 
6128 static int
6129 mrsas_tran_bus_config(dev_info_t *parent, uint_t flags,
6130     ddi_bus_config_op_t op, void *arg, dev_info_t **childp)
6131 {
6132 	struct mrsas_instance *instance;
6133 	int config;
6134 	int rval;
6135 
6136 	char *ptr = NULL;
6137 	int tgt, lun;
6138 
6139 	con_log(CL_ANN1, (CE_NOTE, "Bus config called for op = %x", op));
6140 
6141 	if ((instance = ddi_get_soft_state(mrsas_state,
6142 	    ddi_get_instance(parent))) == NULL) {
6143 		return (NDI_FAILURE);
6144 	}
6145 
6146 	/* Hold nexus during bus_config */
6147 	ndi_devi_enter(parent, &config);
6148 	switch (op) {
6149 	case BUS_CONFIG_ONE: {
6150 
6151 		/* parse wwid/target name out of name given */
6152 		if ((ptr = strchr((char *)arg, '@')) == NULL) {
6153 			rval = NDI_FAILURE;
6154 			break;
6155 		}
6156 		ptr++;
6157 
6158 		if (mrsas_parse_devname(arg, &tgt, &lun) != 0) {
6159 			rval = NDI_FAILURE;
6160 			break;
6161 		}
6162 
6163 		if (lun == 0) {
6164 			rval = mrsas_config_ld(instance, tgt, lun, childp);
6165 		} else {
6166 			rval = NDI_FAILURE;
6167 		}
6168 
6169 		break;
6170 	}
6171 	case BUS_CONFIG_DRIVER:
6172 	case BUS_CONFIG_ALL: {
6173 
6174 		rval = mrsas_config_all_devices(instance);
6175 
6176 		rval = NDI_SUCCESS;
6177 		break;
6178 	}
6179 	}
6180 
6181 	if (rval == NDI_SUCCESS) {
6182 		rval = ndi_busop_bus_config(parent, flags, op, arg, childp, 0);
6183 
6184 	}
6185 	ndi_devi_exit(parent, config);
6186 
6187 	con_log(CL_ANN1, (CE_NOTE, "mrsas_tran_bus_config: rval = %x",
6188 	    rval));
6189 	return (rval);
6190 }
6191 
6192 static int
6193 mrsas_config_all_devices(struct mrsas_instance *instance)
6194 {
6195 	int rval, tgt;
6196 
6197 	for (tgt = 0; tgt < MRDRV_MAX_LD; tgt++) {
6198 		(void) mrsas_config_ld(instance, tgt, 0, NULL);
6199 
6200 	}
6201 
6202 	rval = NDI_SUCCESS;
6203 	return (rval);
6204 }
6205 
6206 static int
6207 mrsas_parse_devname(char *devnm, int *tgt, int *lun)
6208 {
6209 	char devbuf[SCSI_MAXNAMELEN];
6210 	char *addr;
6211 	char *p,  *tp, *lp;
6212 	long num;
6213 
6214 	/* Parse dev name and address */
6215 	(void) strcpy(devbuf, devnm);
6216 	addr = "";
6217 	for (p = devbuf; *p != '\0'; p++) {
6218 		if (*p == '@') {
6219 			addr = p + 1;
6220 			*p = '\0';
6221 		} else if (*p == ':') {
6222 			*p = '\0';
6223 			break;
6224 		}
6225 	}
6226 
6227 	/* Parse target and lun */
6228 	for (p = tp = addr, lp = NULL; *p != '\0'; p++) {
6229 		if (*p == ',') {
6230 			lp = p + 1;
6231 			*p = '\0';
6232 			break;
6233 		}
6234 	}
6235 	if (tgt && tp) {
6236 		if (ddi_strtol(tp, NULL, 0x10, &num)) {
6237 			return (DDI_FAILURE); /* Can declare this as constant */
6238 		}
6239 			*tgt = (int)num;
6240 	}
6241 	if (lun && lp) {
6242 		if (ddi_strtol(lp, NULL, 0x10, &num)) {
6243 			return (DDI_FAILURE);
6244 		}
6245 			*lun = (int)num;
6246 	}
6247 	return (DDI_SUCCESS);  /* Success case */
6248 }
6249 
6250 static int
6251 mrsas_config_ld(struct mrsas_instance *instance, uint16_t tgt,
6252     uint8_t lun, dev_info_t **ldip)
6253 {
6254 	struct scsi_device *sd;
6255 	dev_info_t *child;
6256 	int rval;
6257 
6258 	con_log(CL_ANN1, (CE_NOTE, "mrsas_config_ld: t = %d l = %d",
6259 	    tgt, lun));
6260 
6261 	if ((child = mrsas_find_child(instance, tgt, lun)) != NULL) {
6262 		if (ldip) {
6263 			*ldip = child;
6264 		}
6265 		con_log(CL_ANN1, (CE_NOTE,
6266 		    "mrsas_config_ld: Child = %p found t = %d l = %d",
6267 		    (void *)child, tgt, lun));
6268 		return (NDI_SUCCESS);
6269 	}
6270 
6271 	sd = kmem_zalloc(sizeof (struct scsi_device), KM_SLEEP);
6272 	sd->sd_address.a_hba_tran = instance->tran;
6273 	sd->sd_address.a_target = (uint16_t)tgt;
6274 	sd->sd_address.a_lun = (uint8_t)lun;
6275 
6276 	if (scsi_hba_probe(sd, NULL) == SCSIPROBE_EXISTS)
6277 		rval = mrsas_config_scsi_device(instance, sd, ldip);
6278 	else
6279 		rval = NDI_FAILURE;
6280 
6281 	/* sd_unprobe is blank now. Free buffer manually */
6282 	if (sd->sd_inq) {
6283 		kmem_free(sd->sd_inq, SUN_INQSIZE);
6284 		sd->sd_inq = (struct scsi_inquiry *)NULL;
6285 	}
6286 
6287 	kmem_free(sd, sizeof (struct scsi_device));
6288 	con_log(CL_ANN1, (CE_NOTE, "mrsas_config_ld: return rval = %d",
6289 	    rval));
6290 	return (rval);
6291 }
6292 
6293 static int
6294 mrsas_config_scsi_device(struct mrsas_instance *instance,
6295     struct scsi_device *sd, dev_info_t **dipp)
6296 {
6297 	char *nodename = NULL;
6298 	char **compatible = NULL;
6299 	int ncompatible = 0;
6300 	char *childname;
6301 	dev_info_t *ldip = NULL;
6302 	int tgt = sd->sd_address.a_target;
6303 	int lun = sd->sd_address.a_lun;
6304 	int dtype = sd->sd_inq->inq_dtype & DTYPE_MASK;
6305 	int rval;
6306 
6307 	con_log(CL_ANN1, (CE_WARN, "mr_sas: scsi_device t%dL%d", tgt, lun));
6308 	scsi_hba_nodename_compatible_get(sd->sd_inq, NULL, dtype,
6309 	    NULL, &nodename, &compatible, &ncompatible);
6310 
6311 	if (nodename == NULL) {
6312 		con_log(CL_ANN1, (CE_WARN, "mr_sas: Found no compatible driver "
6313 		    "for t%dL%d", tgt, lun));
6314 		rval = NDI_FAILURE;
6315 		goto finish;
6316 	}
6317 
6318 	childname = (dtype == DTYPE_DIRECT) ? "sd" : nodename;
6319 	con_log(CL_ANN1, (CE_WARN,
6320 	    "mr_sas: Childname = %2s nodename = %s", childname, nodename));
6321 
6322 	/* Create a dev node */
6323 	rval = ndi_devi_alloc(instance->dip, childname, DEVI_SID_NODEID, &ldip);
6324 	con_log(CL_ANN1, (CE_WARN,
6325 	    "mr_sas_config_scsi_device: ndi_devi_alloc rval = %x", rval));
6326 	if (rval == NDI_SUCCESS) {
6327 		if (ndi_prop_update_int(DDI_DEV_T_NONE, ldip, "target", tgt) !=
6328 		    DDI_PROP_SUCCESS) {
6329 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to create "
6330 			    "property for t%dl%d target", tgt, lun));
6331 			rval = NDI_FAILURE;
6332 			goto finish;
6333 		}
6334 		if (ndi_prop_update_int(DDI_DEV_T_NONE, ldip, "lun", lun) !=
6335 		    DDI_PROP_SUCCESS) {
6336 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to create "
6337 			    "property for t%dl%d lun", tgt, lun));
6338 			rval = NDI_FAILURE;
6339 			goto finish;
6340 		}
6341 
6342 		if (ndi_prop_update_string_array(DDI_DEV_T_NONE, ldip,
6343 		    "compatible", compatible, ncompatible) !=
6344 		    DDI_PROP_SUCCESS) {
6345 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to create "
6346 			    "property for t%dl%d compatible", tgt, lun));
6347 			rval = NDI_FAILURE;
6348 			goto finish;
6349 		}
6350 
6351 		rval = ndi_devi_online(ldip, NDI_ONLINE_ATTACH);
6352 		if (rval != NDI_SUCCESS) {
6353 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to online "
6354 			    "t%dl%d", tgt, lun));
6355 			ndi_prop_remove_all(ldip);
6356 			(void) ndi_devi_free(ldip);
6357 		} else {
6358 			con_log(CL_ANN1, (CE_WARN, "mr_sas: online Done :"
6359 			    "0 t%dl%d", tgt, lun));
6360 		}
6361 
6362 	}
6363 finish:
6364 	if (dipp) {
6365 		*dipp = ldip;
6366 	}
6367 
6368 	con_log(CL_DLEVEL1, (CE_WARN,
6369 	    "mr_sas: config_scsi_device rval = %d t%dL%d",
6370 	    rval, tgt, lun));
6371 	scsi_hba_nodename_compatible_free(nodename, compatible);
6372 	return (rval);
6373 }
6374 
6375 /*ARGSUSED*/
6376 static int
6377 mrsas_service_evt(struct mrsas_instance *instance, int tgt, int lun, int event,
6378     uint64_t wwn)
6379 {
6380 	struct mrsas_eventinfo *mrevt = NULL;
6381 
6382 	con_log(CL_ANN1, (CE_NOTE,
6383 	    "mrsas_service_evt called for t%dl%d event = %d",
6384 	    tgt, lun, event));
6385 
6386 	if ((instance->taskq == NULL) || (mrevt =
6387 	    kmem_zalloc(sizeof (struct mrsas_eventinfo), KM_NOSLEEP)) == NULL) {
6388 		return (ENOMEM);
6389 	}
6390 
6391 	mrevt->instance = instance;
6392 	mrevt->tgt = tgt;
6393 	mrevt->lun = lun;
6394 	mrevt->event = event;
6395 
6396 	if ((ddi_taskq_dispatch(instance->taskq,
6397 	    (void (*)(void *))mrsas_issue_evt_taskq, mrevt, DDI_NOSLEEP)) !=
6398 	    DDI_SUCCESS) {
6399 		con_log(CL_ANN1, (CE_NOTE,
6400 		    "mr_sas: Event task failed for t%dl%d event = %d",
6401 		    tgt, lun, event));
6402 		kmem_free(mrevt, sizeof (struct mrsas_eventinfo));
6403 		return (DDI_FAILURE);
6404 	}
6405 	DTRACE_PROBE3(service_evt, int, tgt, int, lun, int, event);
6406 	return (DDI_SUCCESS);
6407 }
6408 
6409 static void
6410 mrsas_issue_evt_taskq(struct mrsas_eventinfo *mrevt)
6411 {
6412 	struct mrsas_instance *instance = mrevt->instance;
6413 	dev_info_t *dip, *pdip;
6414 	int circ1 = 0;
6415 	char *devname;
6416 
6417 	con_log(CL_ANN1, (CE_NOTE, "mrsas_issue_evt_taskq: called for"
6418 	    " tgt %d lun %d event %d",
6419 	    mrevt->tgt, mrevt->lun, mrevt->event));
6420 
6421 	if (mrevt->tgt < MRDRV_MAX_LD && mrevt->lun == 0) {
6422 		dip = instance->mr_ld_list[mrevt->tgt].dip;
6423 	} else {
6424 		return;
6425 	}
6426 
6427 	ndi_devi_enter(instance->dip, &circ1);
6428 	switch (mrevt->event) {
6429 	case MRSAS_EVT_CONFIG_TGT:
6430 		if (dip == NULL) {
6431 
6432 			if (mrevt->lun == 0) {
6433 				(void) mrsas_config_ld(instance, mrevt->tgt,
6434 				    0, NULL);
6435 			}
6436 			con_log(CL_ANN1, (CE_NOTE,
6437 			    "mr_sas: EVT_CONFIG_TGT called:"
6438 			    " for tgt %d lun %d event %d",
6439 			    mrevt->tgt, mrevt->lun, mrevt->event));
6440 
6441 		} else {
6442 			con_log(CL_ANN1, (CE_NOTE,
6443 			    "mr_sas: EVT_CONFIG_TGT dip != NULL:"
6444 			    " for tgt %d lun %d event %d",
6445 			    mrevt->tgt, mrevt->lun, mrevt->event));
6446 		}
6447 		break;
6448 	case MRSAS_EVT_UNCONFIG_TGT:
6449 		if (dip) {
6450 			if (i_ddi_devi_attached(dip)) {
6451 
6452 				pdip = ddi_get_parent(dip);
6453 
6454 				devname = kmem_zalloc(MAXNAMELEN + 1, KM_SLEEP);
6455 				(void) ddi_deviname(dip, devname);
6456 
6457 				(void) devfs_clean(pdip, devname + 1,
6458 				    DV_CLEAN_FORCE);
6459 				kmem_free(devname, MAXNAMELEN + 1);
6460 			}
6461 			(void) ndi_devi_offline(dip, NDI_DEVI_REMOVE);
6462 			con_log(CL_ANN1, (CE_NOTE,
6463 			    "mr_sas: EVT_UNCONFIG_TGT called:"
6464 			    " for tgt %d lun %d event %d",
6465 			    mrevt->tgt, mrevt->lun, mrevt->event));
6466 		} else {
6467 			con_log(CL_ANN1, (CE_NOTE,
6468 			    "mr_sas: EVT_UNCONFIG_TGT dip == NULL:"
6469 			    " for tgt %d lun %d event %d",
6470 			    mrevt->tgt, mrevt->lun, mrevt->event));
6471 		}
6472 		break;
6473 	}
6474 	kmem_free(mrevt, sizeof (struct mrsas_eventinfo));
6475 	ndi_devi_exit(instance->dip, circ1);
6476 }
6477 
6478 static int
6479 mrsas_mode_sense_build(struct scsi_pkt *pkt)
6480 {
6481 	union scsi_cdb		*cdbp;
6482 	uint16_t 		page_code;
6483 	struct scsa_cmd		*acmd;
6484 	struct buf		*bp;
6485 	struct mode_header	*modehdrp;
6486 
6487 	cdbp = (void *)pkt->pkt_cdbp;
6488 	page_code = cdbp->cdb_un.sg.scsi[0];
6489 	acmd = PKT2CMD(pkt);
6490 	bp = acmd->cmd_buf;
6491 	if ((!bp) && bp->b_un.b_addr && bp->b_bcount && acmd->cmd_dmacount) {
6492 		con_log(CL_ANN1, (CE_WARN, "Failing MODESENSE Command"));
6493 		/* ADD pkt statistics as Command failed. */
6494 		return (NULL);
6495 	}
6496 
6497 	bp_mapin(bp);
6498 	bzero(bp->b_un.b_addr, bp->b_bcount);
6499 
6500 	switch (page_code) {
6501 		case 0x3: {
6502 			struct mode_format *page3p = NULL;
6503 			modehdrp = (struct mode_header *)(bp->b_un.b_addr);
6504 			modehdrp->bdesc_length = MODE_BLK_DESC_LENGTH;
6505 
6506 			page3p = (void *)((caddr_t)modehdrp +
6507 			    MODE_HEADER_LENGTH + MODE_BLK_DESC_LENGTH);
6508 			page3p->mode_page.code = 0x3;
6509 			page3p->mode_page.length =
6510 			    (uchar_t)(sizeof (struct mode_format));
6511 			page3p->data_bytes_sect = 512;
6512 			page3p->sect_track = 63;
6513 			break;
6514 		}
6515 		case 0x4: {
6516 			struct mode_geometry *page4p = NULL;
6517 			modehdrp = (struct mode_header *)(bp->b_un.b_addr);
6518 			modehdrp->bdesc_length = MODE_BLK_DESC_LENGTH;
6519 
6520 			page4p = (void *)((caddr_t)modehdrp +
6521 			    MODE_HEADER_LENGTH + MODE_BLK_DESC_LENGTH);
6522 			page4p->mode_page.code = 0x4;
6523 			page4p->mode_page.length =
6524 			    (uchar_t)(sizeof (struct mode_geometry));
6525 			page4p->heads = 255;
6526 			page4p->rpm = 10000;
6527 			break;
6528 		}
6529 		default:
6530 			break;
6531 	}
6532 	return (NULL);
6533 }
6534