xref: /illumos-gate/usr/src/uts/common/io/mr_sas/mr_sas.c (revision d3d50737)
1 /*
2  * mr_sas.c: source for mr_sas driver
3  *
4  * MegaRAID device driver for SAS2.0 controllers
5  * Copyright (c) 2008-2009, 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 2009 Sun Microsystems, Inc.  All rights reserved.
45  * Use is subject to license terms.
46  */
47 
48 #include <sys/types.h>
49 #include <sys/param.h>
50 #include <sys/file.h>
51 #include <sys/errno.h>
52 #include <sys/open.h>
53 #include <sys/cred.h>
54 #include <sys/modctl.h>
55 #include <sys/conf.h>
56 #include <sys/devops.h>
57 #include <sys/cmn_err.h>
58 #include <sys/kmem.h>
59 #include <sys/stat.h>
60 #include <sys/mkdev.h>
61 #include <sys/pci.h>
62 #include <sys/scsi/scsi.h>
63 #include <sys/ddi.h>
64 #include <sys/sunddi.h>
65 #include <sys/atomic.h>
66 #include <sys/signal.h>
67 #include <sys/byteorder.h>
68 #include <sys/sdt.h>
69 #include <sys/fs/dv_node.h>	/* devfs_clean */
70 
71 #include "mr_sas.h"
72 
73 /*
74  * FMA header files
75  */
76 #include <sys/ddifm.h>
77 #include <sys/fm/protocol.h>
78 #include <sys/fm/util.h>
79 #include <sys/fm/io/ddi.h>
80 
81 /*
82  * Local static data
83  */
84 static void	*mrsas_state = NULL;
85 static volatile boolean_t	mrsas_relaxed_ordering = B_TRUE;
86 static volatile int 	debug_level_g = CL_NONE;
87 static volatile int 	msi_enable = 1;
88 
89 #pragma weak scsi_hba_open
90 #pragma weak scsi_hba_close
91 #pragma weak scsi_hba_ioctl
92 
93 static ddi_dma_attr_t mrsas_generic_dma_attr = {
94 	DMA_ATTR_V0,		/* dma_attr_version */
95 	0,			/* low DMA address range */
96 	0xFFFFFFFFU,		/* high DMA address range */
97 	0xFFFFFFFFU,		/* DMA counter register  */
98 	8,			/* DMA address alignment */
99 	0x07,			/* DMA burstsizes  */
100 	1,			/* min DMA size */
101 	0xFFFFFFFFU,		/* max DMA size */
102 	0xFFFFFFFFU,		/* segment boundary */
103 	MRSAS_MAX_SGE_CNT,	/* dma_attr_sglen */
104 	512,			/* granularity of device */
105 	0			/* bus specific DMA flags */
106 };
107 
108 int32_t mrsas_max_cap_maxxfer = 0x1000000;
109 
110 /*
111  * cb_ops contains base level routines
112  */
113 static struct cb_ops mrsas_cb_ops = {
114 	mrsas_open,		/* open */
115 	mrsas_close,		/* close */
116 	nodev,			/* strategy */
117 	nodev,			/* print */
118 	nodev,			/* dump */
119 	nodev,			/* read */
120 	nodev,			/* write */
121 	mrsas_ioctl,		/* ioctl */
122 	nodev,			/* devmap */
123 	nodev,			/* mmap */
124 	nodev,			/* segmap */
125 	nochpoll,		/* poll */
126 	nodev,			/* cb_prop_op */
127 	0,			/* streamtab  */
128 	D_NEW | D_HOTPLUG,	/* cb_flag */
129 	CB_REV,			/* cb_rev */
130 	nodev,			/* cb_aread */
131 	nodev			/* cb_awrite */
132 };
133 
134 /*
135  * dev_ops contains configuration routines
136  */
137 static struct dev_ops mrsas_ops = {
138 	DEVO_REV,		/* rev, */
139 	0,			/* refcnt */
140 	mrsas_getinfo,		/* getinfo */
141 	nulldev,		/* identify */
142 	nulldev,		/* probe */
143 	mrsas_attach,		/* attach */
144 	mrsas_detach,		/* detach */
145 	mrsas_reset,		/* reset */
146 	&mrsas_cb_ops,		/* char/block ops */
147 	NULL,			/* bus ops */
148 	NULL,			/* power */
149 	ddi_quiesce_not_supported,		/* quiesce */
150 };
151 
152 char _depends_on[] = "misc/scsi";
153 
154 static struct modldrv modldrv = {
155 	&mod_driverops,		/* module type - driver */
156 	MRSAS_VERSION,
157 	&mrsas_ops,		/* driver ops */
158 };
159 
160 static struct modlinkage modlinkage = {
161 	MODREV_1,	/* ml_rev - must be MODREV_1 */
162 	&modldrv,	/* ml_linkage */
163 	NULL		/* end of driver linkage */
164 };
165 
166 static struct ddi_device_acc_attr endian_attr = {
167 	DDI_DEVICE_ATTR_V0,
168 	DDI_STRUCTURE_LE_ACC,
169 	DDI_STRICTORDER_ACC
170 };
171 
172 
173 /*
174  * ************************************************************************** *
175  *                                                                            *
176  *         common entry points - for loadable kernel modules                  *
177  *                                                                            *
178  * ************************************************************************** *
179  */
180 
181 int
182 _init(void)
183 {
184 	int ret;
185 
186 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
187 
188 	ret = ddi_soft_state_init(&mrsas_state,
189 	    sizeof (struct mrsas_instance), 0);
190 
191 	if (ret != DDI_SUCCESS) {
192 		con_log(CL_ANN, (CE_WARN, "mr_sas: could not init state"));
193 		return (ret);
194 	}
195 
196 	if ((ret = scsi_hba_init(&modlinkage)) != DDI_SUCCESS) {
197 		con_log(CL_ANN, (CE_WARN, "mr_sas: could not init scsi hba"));
198 		ddi_soft_state_fini(&mrsas_state);
199 		return (ret);
200 	}
201 
202 	ret = mod_install(&modlinkage);
203 
204 	if (ret != DDI_SUCCESS) {
205 		con_log(CL_ANN, (CE_WARN, "mr_sas: mod_install failed"));
206 		scsi_hba_fini(&modlinkage);
207 		ddi_soft_state_fini(&mrsas_state);
208 	}
209 
210 	return (ret);
211 }
212 
213 int
214 _info(struct modinfo *modinfop)
215 {
216 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
217 
218 	return (mod_info(&modlinkage, modinfop));
219 }
220 
221 int
222 _fini(void)
223 {
224 	int ret;
225 
226 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
227 
228 	if ((ret = mod_remove(&modlinkage)) != DDI_SUCCESS)
229 		return (ret);
230 
231 	scsi_hba_fini(&modlinkage);
232 
233 	ddi_soft_state_fini(&mrsas_state);
234 
235 	return (ret);
236 }
237 
238 
239 /*
240  * ************************************************************************** *
241  *                                                                            *
242  *               common entry points - for autoconfiguration                  *
243  *                                                                            *
244  * ************************************************************************** *
245  */
246 
247 static int
248 mrsas_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
249 {
250 	int		instance_no;
251 	int		nregs;
252 	uint8_t		added_isr_f = 0;
253 	uint8_t		added_soft_isr_f = 0;
254 	uint8_t		create_devctl_node_f = 0;
255 	uint8_t		create_scsi_node_f = 0;
256 	uint8_t		create_ioc_node_f = 0;
257 	uint8_t		tran_alloc_f = 0;
258 	uint8_t 	irq;
259 	uint16_t	vendor_id;
260 	uint16_t	device_id;
261 	uint16_t	subsysvid;
262 	uint16_t	subsysid;
263 	uint16_t	command;
264 	off_t		reglength = 0;
265 	int		intr_types = 0;
266 	char		*data;
267 
268 	scsi_hba_tran_t		*tran;
269 	ddi_dma_attr_t  tran_dma_attr;
270 	struct mrsas_instance	*instance;
271 
272 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
273 
274 	/* CONSTCOND */
275 	ASSERT(NO_COMPETING_THREADS);
276 
277 	instance_no = ddi_get_instance(dip);
278 
279 	/*
280 	 * check to see whether this device is in a DMA-capable slot.
281 	 */
282 	if (ddi_slaveonly(dip) == DDI_SUCCESS) {
283 		con_log(CL_ANN, (CE_WARN,
284 		    "mr_sas%d: Device in slave-only slot, unused",
285 		    instance_no));
286 		return (DDI_FAILURE);
287 	}
288 
289 	switch (cmd) {
290 		case DDI_ATTACH:
291 			con_log(CL_DLEVEL1, (CE_NOTE, "mr_sas: DDI_ATTACH"));
292 			/* allocate the soft state for the instance */
293 			if (ddi_soft_state_zalloc(mrsas_state, instance_no)
294 			    != DDI_SUCCESS) {
295 				con_log(CL_ANN, (CE_WARN,
296 				    "mr_sas%d: Failed to allocate soft state",
297 				    instance_no));
298 
299 				return (DDI_FAILURE);
300 			}
301 
302 			instance = (struct mrsas_instance *)ddi_get_soft_state
303 			    (mrsas_state, instance_no);
304 
305 			if (instance == NULL) {
306 				con_log(CL_ANN, (CE_WARN,
307 				    "mr_sas%d: Bad soft state", instance_no));
308 
309 				ddi_soft_state_free(mrsas_state, instance_no);
310 
311 				return (DDI_FAILURE);
312 			}
313 
314 			bzero((caddr_t)instance,
315 			    sizeof (struct mrsas_instance));
316 
317 			instance->func_ptr = kmem_zalloc(
318 			    sizeof (struct mrsas_func_ptr), KM_SLEEP);
319 			ASSERT(instance->func_ptr);
320 
321 			/* Setup the PCI configuration space handles */
322 			if (pci_config_setup(dip, &instance->pci_handle) !=
323 			    DDI_SUCCESS) {
324 				con_log(CL_ANN, (CE_WARN,
325 				    "mr_sas%d: pci config setup failed ",
326 				    instance_no));
327 
328 				kmem_free(instance->func_ptr,
329 				    sizeof (struct mrsas_func_ptr));
330 				ddi_soft_state_free(mrsas_state, instance_no);
331 
332 				return (DDI_FAILURE);
333 			}
334 
335 			if (ddi_dev_nregs(dip, &nregs) != DDI_SUCCESS) {
336 				con_log(CL_ANN, (CE_WARN,
337 				    "mr_sas: failed to get registers."));
338 
339 				pci_config_teardown(&instance->pci_handle);
340 				kmem_free(instance->func_ptr,
341 				    sizeof (struct mrsas_func_ptr));
342 				ddi_soft_state_free(mrsas_state, instance_no);
343 
344 				return (DDI_FAILURE);
345 			}
346 
347 			vendor_id = pci_config_get16(instance->pci_handle,
348 			    PCI_CONF_VENID);
349 			device_id = pci_config_get16(instance->pci_handle,
350 			    PCI_CONF_DEVID);
351 
352 			subsysvid = pci_config_get16(instance->pci_handle,
353 			    PCI_CONF_SUBVENID);
354 			subsysid = pci_config_get16(instance->pci_handle,
355 			    PCI_CONF_SUBSYSID);
356 
357 			pci_config_put16(instance->pci_handle, PCI_CONF_COMM,
358 			    (pci_config_get16(instance->pci_handle,
359 			    PCI_CONF_COMM) | PCI_COMM_ME));
360 			irq = pci_config_get8(instance->pci_handle,
361 			    PCI_CONF_ILINE);
362 
363 			con_log(CL_DLEVEL1, (CE_CONT, "mr_sas%d: "
364 			    "0x%x:0x%x 0x%x:0x%x, irq:%d drv-ver:%s",
365 			    instance_no, vendor_id, device_id, subsysvid,
366 			    subsysid, irq, MRSAS_VERSION));
367 
368 			/* enable bus-mastering */
369 			command = pci_config_get16(instance->pci_handle,
370 			    PCI_CONF_COMM);
371 
372 			if (!(command & PCI_COMM_ME)) {
373 				command |= PCI_COMM_ME;
374 
375 				pci_config_put16(instance->pci_handle,
376 				    PCI_CONF_COMM, command);
377 
378 				con_log(CL_ANN, (CE_CONT, "mr_sas%d: "
379 				    "enable bus-mastering", instance_no));
380 			} else {
381 				con_log(CL_DLEVEL1, (CE_CONT, "mr_sas%d: "
382 				"bus-mastering already set", instance_no));
383 			}
384 
385 			/* initialize function pointers */
386 			if ((device_id == PCI_DEVICE_ID_LSI_2108VDE) ||
387 			    (device_id == PCI_DEVICE_ID_LSI_2108V)) {
388 				con_log(CL_DLEVEL1, (CE_CONT, "mr_sas%d: "
389 				    "2108V/DE detected", instance_no));
390 				instance->func_ptr->read_fw_status_reg =
391 				    read_fw_status_reg_ppc;
392 				instance->func_ptr->issue_cmd = issue_cmd_ppc;
393 				instance->func_ptr->issue_cmd_in_sync_mode =
394 				    issue_cmd_in_sync_mode_ppc;
395 				instance->func_ptr->issue_cmd_in_poll_mode =
396 				    issue_cmd_in_poll_mode_ppc;
397 				instance->func_ptr->enable_intr =
398 				    enable_intr_ppc;
399 				instance->func_ptr->disable_intr =
400 				    disable_intr_ppc;
401 				instance->func_ptr->intr_ack = intr_ack_ppc;
402 			} else {
403 				con_log(CL_ANN, (CE_WARN,
404 				    "mr_sas: Invalid device detected"));
405 
406 				pci_config_teardown(&instance->pci_handle);
407 				kmem_free(instance->func_ptr,
408 				    sizeof (struct mrsas_func_ptr));
409 				ddi_soft_state_free(mrsas_state, instance_no);
410 
411 				return (DDI_FAILURE);
412 			}
413 
414 			instance->baseaddress = pci_config_get32(
415 			    instance->pci_handle, PCI_CONF_BASE0);
416 			instance->baseaddress &= 0x0fffc;
417 
418 			instance->dip		= dip;
419 			instance->vendor_id	= vendor_id;
420 			instance->device_id	= device_id;
421 			instance->subsysvid	= subsysvid;
422 			instance->subsysid	= subsysid;
423 			instance->instance	= instance_no;
424 
425 			/* Initialize FMA */
426 			instance->fm_capabilities = ddi_prop_get_int(
427 			    DDI_DEV_T_ANY, instance->dip, DDI_PROP_DONTPASS,
428 			    "fm-capable", DDI_FM_EREPORT_CAPABLE |
429 			    DDI_FM_ACCCHK_CAPABLE | DDI_FM_DMACHK_CAPABLE
430 			    | DDI_FM_ERRCB_CAPABLE);
431 
432 			mrsas_fm_init(instance);
433 
434 			/* Initialize Interrupts */
435 			if ((ddi_dev_regsize(instance->dip,
436 			    REGISTER_SET_IO_2108, &reglength) != DDI_SUCCESS) ||
437 			    reglength < MINIMUM_MFI_MEM_SZ) {
438 				return (DDI_FAILURE);
439 			}
440 			if (reglength > DEFAULT_MFI_MEM_SZ) {
441 				reglength = DEFAULT_MFI_MEM_SZ;
442 				con_log(CL_DLEVEL1, (CE_NOTE,
443 				    "mr_sas: register length to map is "
444 				    "0x%lx bytes", reglength));
445 			}
446 			if (ddi_regs_map_setup(instance->dip,
447 			    REGISTER_SET_IO_2108, &instance->regmap, 0,
448 			    reglength, &endian_attr, &instance->regmap_handle)
449 			    != DDI_SUCCESS) {
450 				con_log(CL_ANN, (CE_NOTE,
451 				    "mr_sas: couldn't map control registers"));
452 				goto fail_attach;
453 			}
454 
455 			/*
456 			 * Disable Interrupt Now.
457 			 * Setup Software interrupt
458 			 */
459 			instance->func_ptr->disable_intr(instance);
460 
461 			if (ddi_prop_lookup_string(DDI_DEV_T_ANY, dip, 0,
462 			    "mrsas-enable-msi", &data) == DDI_SUCCESS) {
463 				if (strncmp(data, "no", 3) == 0) {
464 					msi_enable = 0;
465 					con_log(CL_ANN1, (CE_WARN,
466 					    "msi_enable = %d disabled",
467 					    msi_enable));
468 				}
469 				ddi_prop_free(data);
470 			}
471 
472 			con_log(CL_DLEVEL1, (CE_WARN, "msi_enable = %d",
473 			    msi_enable));
474 
475 			/* Check for all supported interrupt types */
476 			if (ddi_intr_get_supported_types(
477 			    dip, &intr_types) != DDI_SUCCESS) {
478 				con_log(CL_ANN, (CE_WARN,
479 				    "ddi_intr_get_supported_types() failed"));
480 				goto fail_attach;
481 			}
482 
483 			con_log(CL_DLEVEL1, (CE_NOTE,
484 			    "ddi_intr_get_supported_types() ret: 0x%x",
485 			    intr_types));
486 
487 			/* Initialize and Setup Interrupt handler */
488 			if (msi_enable && (intr_types & DDI_INTR_TYPE_MSIX)) {
489 				if (mrsas_add_intrs(instance,
490 				    DDI_INTR_TYPE_MSIX) != DDI_SUCCESS) {
491 					con_log(CL_ANN, (CE_WARN,
492 					    "MSIX interrupt query failed"));
493 					goto fail_attach;
494 				}
495 				instance->intr_type = DDI_INTR_TYPE_MSIX;
496 			} else if (msi_enable && (intr_types &
497 			    DDI_INTR_TYPE_MSI)) {
498 				if (mrsas_add_intrs(instance,
499 				    DDI_INTR_TYPE_MSI) != DDI_SUCCESS) {
500 					con_log(CL_ANN, (CE_WARN,
501 					    "MSI interrupt query failed"));
502 					goto fail_attach;
503 				}
504 				instance->intr_type = DDI_INTR_TYPE_MSI;
505 			} else if (intr_types & DDI_INTR_TYPE_FIXED) {
506 				msi_enable = 0;
507 				if (mrsas_add_intrs(instance,
508 				    DDI_INTR_TYPE_FIXED) != DDI_SUCCESS) {
509 					con_log(CL_ANN, (CE_WARN,
510 					    "FIXED interrupt query failed"));
511 					goto fail_attach;
512 				}
513 				instance->intr_type = DDI_INTR_TYPE_FIXED;
514 			} else {
515 				con_log(CL_ANN, (CE_WARN, "Device cannot "
516 				    "suppport either FIXED or MSI/X "
517 				    "interrupts"));
518 				goto fail_attach;
519 			}
520 
521 			added_isr_f = 1;
522 
523 			/* setup the mfi based low level driver */
524 			if (init_mfi(instance) != DDI_SUCCESS) {
525 				con_log(CL_ANN, (CE_WARN, "mr_sas: "
526 				"could not initialize the low level driver"));
527 
528 				goto fail_attach;
529 			}
530 
531 			/* Initialize all Mutex */
532 			INIT_LIST_HEAD(&instance->completed_pool_list);
533 			mutex_init(&instance->completed_pool_mtx,
534 			    "completed_pool_mtx", MUTEX_DRIVER,
535 			    DDI_INTR_PRI(instance->intr_pri));
536 
537 			mutex_init(&instance->int_cmd_mtx, "int_cmd_mtx",
538 			    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
539 			cv_init(&instance->int_cmd_cv, NULL, CV_DRIVER, NULL);
540 
541 			mutex_init(&instance->cmd_pool_mtx, "cmd_pool_mtx",
542 			    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
543 
544 			/* Register our soft-isr for highlevel interrupts. */
545 			instance->isr_level = instance->intr_pri;
546 			if (instance->isr_level == HIGH_LEVEL_INTR) {
547 				if (ddi_add_softintr(dip, DDI_SOFTINT_HIGH,
548 				    &instance->soft_intr_id, NULL, NULL,
549 				    mrsas_softintr, (caddr_t)instance) !=
550 				    DDI_SUCCESS) {
551 					con_log(CL_ANN, (CE_WARN,
552 					    " Software ISR did not register"));
553 
554 					goto fail_attach;
555 				}
556 
557 				added_soft_isr_f = 1;
558 			}
559 
560 			/* Allocate a transport structure */
561 			tran = scsi_hba_tran_alloc(dip, SCSI_HBA_CANSLEEP);
562 
563 			if (tran == NULL) {
564 				con_log(CL_ANN, (CE_WARN,
565 				    "scsi_hba_tran_alloc failed"));
566 				goto fail_attach;
567 			}
568 
569 			tran_alloc_f = 1;
570 
571 			instance->tran = tran;
572 
573 			tran->tran_hba_private	= instance;
574 			tran->tran_tgt_init	= mrsas_tran_tgt_init;
575 			tran->tran_tgt_probe	= scsi_hba_probe;
576 			tran->tran_tgt_free	= mrsas_tran_tgt_free;
577 			tran->tran_init_pkt	= mrsas_tran_init_pkt;
578 			tran->tran_start	= mrsas_tran_start;
579 			tran->tran_abort	= mrsas_tran_abort;
580 			tran->tran_reset	= mrsas_tran_reset;
581 			tran->tran_getcap	= mrsas_tran_getcap;
582 			tran->tran_setcap	= mrsas_tran_setcap;
583 			tran->tran_destroy_pkt	= mrsas_tran_destroy_pkt;
584 			tran->tran_dmafree	= mrsas_tran_dmafree;
585 			tran->tran_sync_pkt	= mrsas_tran_sync_pkt;
586 			tran->tran_bus_config	= mrsas_tran_bus_config;
587 
588 			if (mrsas_relaxed_ordering)
589 				mrsas_generic_dma_attr.dma_attr_flags |=
590 				    DDI_DMA_RELAXED_ORDERING;
591 
592 
593 			tran_dma_attr = mrsas_generic_dma_attr;
594 			tran_dma_attr.dma_attr_sgllen = instance->max_num_sge;
595 
596 			/* Attach this instance of the hba */
597 			if (scsi_hba_attach_setup(dip, &tran_dma_attr, tran, 0)
598 			    != DDI_SUCCESS) {
599 				con_log(CL_ANN, (CE_WARN,
600 				    "scsi_hba_attach failed"));
601 
602 				goto fail_attach;
603 			}
604 
605 			/* create devctl node for cfgadm command */
606 			if (ddi_create_minor_node(dip, "devctl",
607 			    S_IFCHR, INST2DEVCTL(instance_no),
608 			    DDI_NT_SCSI_NEXUS, 0) == DDI_FAILURE) {
609 				con_log(CL_ANN, (CE_WARN,
610 				    "mr_sas: failed to create devctl node."));
611 
612 				goto fail_attach;
613 			}
614 
615 			create_devctl_node_f = 1;
616 
617 			/* create scsi node for cfgadm command */
618 			if (ddi_create_minor_node(dip, "scsi", S_IFCHR,
619 			    INST2SCSI(instance_no),
620 			    DDI_NT_SCSI_ATTACHMENT_POINT, 0) ==
621 			    DDI_FAILURE) {
622 				con_log(CL_ANN, (CE_WARN,
623 				    "mr_sas: failed to create scsi node."));
624 
625 				goto fail_attach;
626 			}
627 
628 			create_scsi_node_f = 1;
629 
630 			(void) sprintf(instance->iocnode, "%d:lsirdctl",
631 			    instance_no);
632 
633 			/*
634 			 * Create a node for applications
635 			 * for issuing ioctl to the driver.
636 			 */
637 			if (ddi_create_minor_node(dip, instance->iocnode,
638 			    S_IFCHR, INST2LSIRDCTL(instance_no),
639 			    DDI_PSEUDO, 0) == DDI_FAILURE) {
640 				con_log(CL_ANN, (CE_WARN,
641 				    "mr_sas: failed to create ioctl node."));
642 
643 				goto fail_attach;
644 			}
645 
646 			create_ioc_node_f = 1;
647 
648 			/* Create a taskq to handle dr events */
649 			if ((instance->taskq = ddi_taskq_create(dip,
650 			    "mrsas_dr_taskq", 1,
651 			    TASKQ_DEFAULTPRI, 0)) == NULL) {
652 				con_log(CL_ANN, (CE_WARN,
653 				    "mr_sas: failed to create taskq "));
654 				instance->taskq = NULL;
655 				goto fail_attach;
656 			}
657 
658 			/* enable interrupt */
659 			instance->func_ptr->enable_intr(instance);
660 
661 			/* initiate AEN */
662 			if (start_mfi_aen(instance)) {
663 				con_log(CL_ANN, (CE_WARN,
664 				    "mr_sas: failed to initiate AEN."));
665 				goto fail_initiate_aen;
666 			}
667 
668 			con_log(CL_DLEVEL1, (CE_NOTE,
669 			    "AEN started for instance %d.", instance_no));
670 
671 			/* Finally! We are on the air.  */
672 			ddi_report_dev(dip);
673 
674 			if (mrsas_check_acc_handle(instance->regmap_handle) !=
675 			    DDI_SUCCESS) {
676 				goto fail_attach;
677 			}
678 			if (mrsas_check_acc_handle(instance->pci_handle) !=
679 			    DDI_SUCCESS) {
680 				goto fail_attach;
681 			}
682 			instance->mr_ld_list =
683 			    kmem_zalloc(MRDRV_MAX_LD * sizeof (struct mrsas_ld),
684 			    KM_SLEEP);
685 			break;
686 		case DDI_PM_RESUME:
687 			con_log(CL_ANN, (CE_NOTE,
688 			    "mr_sas: DDI_PM_RESUME"));
689 			break;
690 		case DDI_RESUME:
691 			con_log(CL_ANN, (CE_NOTE,
692 			    "mr_sas: DDI_RESUME"));
693 			break;
694 		default:
695 			con_log(CL_ANN, (CE_WARN,
696 			    "mr_sas: invalid attach cmd=%x", cmd));
697 			return (DDI_FAILURE);
698 	}
699 
700 	return (DDI_SUCCESS);
701 
702 fail_initiate_aen:
703 fail_attach:
704 	if (create_devctl_node_f) {
705 		ddi_remove_minor_node(dip, "devctl");
706 	}
707 
708 	if (create_scsi_node_f) {
709 		ddi_remove_minor_node(dip, "scsi");
710 	}
711 
712 	if (create_ioc_node_f) {
713 		ddi_remove_minor_node(dip, instance->iocnode);
714 	}
715 
716 	if (tran_alloc_f) {
717 		scsi_hba_tran_free(tran);
718 	}
719 
720 
721 	if (added_soft_isr_f) {
722 		ddi_remove_softintr(instance->soft_intr_id);
723 	}
724 
725 	if (added_isr_f) {
726 		mrsas_rem_intrs(instance);
727 	}
728 
729 	if (instance && instance->taskq) {
730 		ddi_taskq_destroy(instance->taskq);
731 	}
732 
733 	mrsas_fm_ereport(instance, DDI_FM_DEVICE_NO_RESPONSE);
734 	ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
735 
736 	mrsas_fm_fini(instance);
737 
738 	pci_config_teardown(&instance->pci_handle);
739 
740 	ddi_soft_state_free(mrsas_state, instance_no);
741 
742 	con_log(CL_ANN, (CE_NOTE,
743 	    "mr_sas: return failure from mrsas_attach"));
744 
745 	return (DDI_FAILURE);
746 }
747 
748 /*ARGSUSED*/
749 static int
750 mrsas_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd,  void *arg, void **resultp)
751 {
752 	int	rval;
753 	int	mrsas_minor = getminor((dev_t)arg);
754 
755 	struct mrsas_instance	*instance;
756 
757 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
758 
759 	switch (cmd) {
760 		case DDI_INFO_DEVT2DEVINFO:
761 			instance = (struct mrsas_instance *)
762 			    ddi_get_soft_state(mrsas_state,
763 			    MINOR2INST(mrsas_minor));
764 
765 			if (instance == NULL) {
766 				*resultp = NULL;
767 				rval = DDI_FAILURE;
768 			} else {
769 				*resultp = instance->dip;
770 				rval = DDI_SUCCESS;
771 			}
772 			break;
773 		case DDI_INFO_DEVT2INSTANCE:
774 			*resultp = (void *)(intptr_t)
775 			    (MINOR2INST(getminor((dev_t)arg)));
776 			rval = DDI_SUCCESS;
777 			break;
778 		default:
779 			*resultp = NULL;
780 			rval = DDI_FAILURE;
781 	}
782 
783 	return (rval);
784 }
785 
786 static int
787 mrsas_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
788 {
789 	int	instance_no;
790 
791 	struct mrsas_instance	*instance;
792 
793 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
794 
795 	/* CONSTCOND */
796 	ASSERT(NO_COMPETING_THREADS);
797 
798 	instance_no = ddi_get_instance(dip);
799 
800 	instance = (struct mrsas_instance *)ddi_get_soft_state(mrsas_state,
801 	    instance_no);
802 
803 	if (!instance) {
804 		con_log(CL_ANN, (CE_WARN,
805 		    "mr_sas:%d could not get instance in detach",
806 		    instance_no));
807 
808 		return (DDI_FAILURE);
809 	}
810 
811 	con_log(CL_ANN, (CE_NOTE,
812 	    "mr_sas%d: detaching device 0x%4x:0x%4x:0x%4x:0x%4x",
813 	    instance_no, instance->vendor_id, instance->device_id,
814 	    instance->subsysvid, instance->subsysid));
815 
816 	switch (cmd) {
817 	case DDI_DETACH:
818 		con_log(CL_ANN, (CE_NOTE,
819 		    "mrsas_detach: DDI_DETACH"));
820 
821 		if (scsi_hba_detach(dip) != DDI_SUCCESS) {
822 			con_log(CL_ANN, (CE_WARN,
823 			    "mr_sas:%d failed to detach",
824 			    instance_no));
825 
826 			return (DDI_FAILURE);
827 		}
828 
829 		scsi_hba_tran_free(instance->tran);
830 
831 		flush_cache(instance);
832 
833 		if (abort_aen_cmd(instance, instance->aen_cmd)) {
834 			con_log(CL_ANN, (CE_WARN, "mrsas_detach: "
835 			    "failed to abort prevous AEN command"));
836 
837 			return (DDI_FAILURE);
838 		}
839 
840 		instance->func_ptr->disable_intr(instance);
841 
842 		if (instance->isr_level == HIGH_LEVEL_INTR) {
843 			ddi_remove_softintr(instance->soft_intr_id);
844 		}
845 
846 		mrsas_rem_intrs(instance);
847 
848 		if (instance->taskq) {
849 			ddi_taskq_destroy(instance->taskq);
850 		}
851 		kmem_free(instance->mr_ld_list, MRDRV_MAX_LD
852 		    * sizeof (struct mrsas_ld));
853 		free_space_for_mfi(instance);
854 
855 		mrsas_fm_fini(instance);
856 
857 		pci_config_teardown(&instance->pci_handle);
858 
859 		kmem_free(instance->func_ptr,
860 		    sizeof (struct mrsas_func_ptr));
861 
862 		ddi_soft_state_free(mrsas_state, instance_no);
863 		break;
864 	case DDI_PM_SUSPEND:
865 		con_log(CL_ANN, (CE_NOTE,
866 		    "mrsas_detach: DDI_PM_SUSPEND"));
867 
868 		break;
869 	case DDI_SUSPEND:
870 		con_log(CL_ANN, (CE_NOTE,
871 		    "mrsas_detach: DDI_SUSPEND"));
872 
873 		break;
874 	default:
875 		con_log(CL_ANN, (CE_WARN,
876 		    "invalid detach command:0x%x", cmd));
877 		return (DDI_FAILURE);
878 	}
879 
880 	return (DDI_SUCCESS);
881 }
882 
883 /*
884  * ************************************************************************** *
885  *                                                                            *
886  *             common entry points - for character driver types               *
887  *                                                                            *
888  * ************************************************************************** *
889  */
890 static  int
891 mrsas_open(dev_t *dev, int openflags, int otyp, cred_t *credp)
892 {
893 	int	rval = 0;
894 
895 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
896 
897 	/* Check root permissions */
898 	if (drv_priv(credp) != 0) {
899 		con_log(CL_ANN, (CE_WARN,
900 		    "mr_sas: Non-root ioctl access denied!"));
901 		return (EPERM);
902 	}
903 
904 	/* Verify we are being opened as a character device */
905 	if (otyp != OTYP_CHR) {
906 		con_log(CL_ANN, (CE_WARN,
907 		    "mr_sas: ioctl node must be a char node"));
908 		return (EINVAL);
909 	}
910 
911 	if (ddi_get_soft_state(mrsas_state, MINOR2INST(getminor(*dev)))
912 	    == NULL) {
913 		return (ENXIO);
914 	}
915 
916 	if (scsi_hba_open) {
917 		rval = scsi_hba_open(dev, openflags, otyp, credp);
918 	}
919 
920 	return (rval);
921 }
922 
923 static  int
924 mrsas_close(dev_t dev, int openflags, int otyp, cred_t *credp)
925 {
926 	int	rval = 0;
927 
928 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
929 
930 	/* no need for locks! */
931 
932 	if (scsi_hba_close) {
933 		rval = scsi_hba_close(dev, openflags, otyp, credp);
934 	}
935 
936 	return (rval);
937 }
938 
939 static int
940 mrsas_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *credp,
941     int *rvalp)
942 {
943 	int	rval = 0;
944 
945 	struct mrsas_instance	*instance;
946 	struct mrsas_ioctl	*ioctl;
947 	struct mrsas_aen	aen;
948 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
949 
950 	instance = ddi_get_soft_state(mrsas_state, MINOR2INST(getminor(dev)));
951 
952 	if (instance == NULL) {
953 		/* invalid minor number */
954 		con_log(CL_ANN, (CE_WARN, "mr_sas: adapter not found."));
955 		return (ENXIO);
956 	}
957 
958 	ioctl = (struct mrsas_ioctl *)kmem_zalloc(sizeof (struct mrsas_ioctl),
959 	    KM_SLEEP);
960 	ASSERT(ioctl);
961 
962 	switch ((uint_t)cmd) {
963 		case MRSAS_IOCTL_FIRMWARE:
964 			if (ddi_copyin((void *)arg, ioctl,
965 			    sizeof (struct mrsas_ioctl), mode)) {
966 				con_log(CL_ANN, (CE_WARN, "mrsas_ioctl: "
967 				    "ERROR IOCTL copyin"));
968 				kmem_free(ioctl, sizeof (struct mrsas_ioctl));
969 				return (EFAULT);
970 			}
971 
972 			if (ioctl->control_code == MRSAS_DRIVER_IOCTL_COMMON) {
973 				rval = handle_drv_ioctl(instance, ioctl, mode);
974 			} else {
975 				rval = handle_mfi_ioctl(instance, ioctl, mode);
976 			}
977 
978 			if (ddi_copyout((void *)ioctl, (void *)arg,
979 			    (sizeof (struct mrsas_ioctl) - 1), mode)) {
980 				con_log(CL_ANN, (CE_WARN,
981 				    "mrsas_ioctl: copy_to_user failed"));
982 				rval = 1;
983 			}
984 
985 			break;
986 		case MRSAS_IOCTL_AEN:
987 			if (ddi_copyin((void *) arg, &aen,
988 			    sizeof (struct mrsas_aen), mode)) {
989 				con_log(CL_ANN, (CE_WARN,
990 				    "mrsas_ioctl: ERROR AEN copyin"));
991 				kmem_free(ioctl, sizeof (struct mrsas_ioctl));
992 				return (EFAULT);
993 			}
994 
995 			rval = handle_mfi_aen(instance, &aen);
996 
997 			if (ddi_copyout((void *) &aen, (void *)arg,
998 			    sizeof (struct mrsas_aen), mode)) {
999 				con_log(CL_ANN, (CE_WARN,
1000 				    "mrsas_ioctl: copy_to_user failed"));
1001 				rval = 1;
1002 			}
1003 
1004 			break;
1005 		default:
1006 			rval = scsi_hba_ioctl(dev, cmd, arg,
1007 			    mode, credp, rvalp);
1008 
1009 			con_log(CL_DLEVEL1, (CE_NOTE, "mrsas_ioctl: "
1010 			    "scsi_hba_ioctl called, ret = %x.", rval));
1011 	}
1012 
1013 	kmem_free(ioctl, sizeof (struct mrsas_ioctl));
1014 	return (rval);
1015 }
1016 
1017 /*
1018  * ************************************************************************** *
1019  *                                                                            *
1020  *               common entry points - for block driver types                 *
1021  *                                                                            *
1022  * ************************************************************************** *
1023  */
1024 /*ARGSUSED*/
1025 static int
1026 mrsas_reset(dev_info_t *dip, ddi_reset_cmd_t cmd)
1027 {
1028 	int	instance_no;
1029 
1030 	struct mrsas_instance	*instance;
1031 
1032 	instance_no = ddi_get_instance(dip);
1033 	instance = (struct mrsas_instance *)ddi_get_soft_state
1034 	    (mrsas_state, instance_no);
1035 
1036 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1037 
1038 	if (!instance) {
1039 		con_log(CL_ANN, (CE_WARN, "mr_sas:%d could not get adapter "
1040 		    "in reset", instance_no));
1041 		return (DDI_FAILURE);
1042 	}
1043 
1044 	instance->func_ptr->disable_intr(instance);
1045 
1046 	con_log(CL_ANN1, (CE_NOTE, "flushing cache for instance %d",
1047 	    instance_no));
1048 
1049 	flush_cache(instance);
1050 
1051 	return (DDI_SUCCESS);
1052 }
1053 
1054 
1055 /*
1056  * ************************************************************************** *
1057  *                                                                            *
1058  *                          entry points (SCSI HBA)                           *
1059  *                                                                            *
1060  * ************************************************************************** *
1061  */
1062 /*ARGSUSED*/
1063 static int
1064 mrsas_tran_tgt_init(dev_info_t *hba_dip, dev_info_t *tgt_dip,
1065 		scsi_hba_tran_t *tran, struct scsi_device *sd)
1066 {
1067 	struct mrsas_instance *instance;
1068 	uint16_t tgt = sd->sd_address.a_target;
1069 	uint8_t lun = sd->sd_address.a_lun;
1070 
1071 	con_log(CL_ANN1, (CE_NOTE, "mrsas_tgt_init target %d lun %d",
1072 	    tgt, lun));
1073 
1074 	instance = ADDR2MR(&sd->sd_address);
1075 
1076 	if (ndi_dev_is_persistent_node(tgt_dip) == 0) {
1077 		(void) ndi_merge_node(tgt_dip, mrsas_name_node);
1078 		ddi_set_name_addr(tgt_dip, NULL);
1079 
1080 		con_log(CL_ANN1, (CE_NOTE, "mrsas_tgt_init in "
1081 		    "ndi_dev_is_persistent_node DDI_FAILURE t = %d l = %d",
1082 		    tgt, lun));
1083 		return (DDI_FAILURE);
1084 	}
1085 
1086 	con_log(CL_ANN1, (CE_NOTE, "mrsas_tgt_init dev_dip %p tgt_dip %p",
1087 	    (void *)instance->mr_ld_list[tgt].dip, (void *)tgt_dip));
1088 
1089 	if (tgt < MRDRV_MAX_LD && lun == 0) {
1090 		if (instance->mr_ld_list[tgt].dip == NULL &&
1091 		    strcmp(ddi_driver_name(sd->sd_dev), "sd") == 0) {
1092 			instance->mr_ld_list[tgt].dip = tgt_dip;
1093 			instance->mr_ld_list[tgt].lun_type = MRSAS_LD_LUN;
1094 		}
1095 	}
1096 	return (DDI_SUCCESS);
1097 }
1098 
1099 /*ARGSUSED*/
1100 static void
1101 mrsas_tran_tgt_free(dev_info_t *hba_dip, dev_info_t *tgt_dip,
1102     scsi_hba_tran_t *hba_tran, struct scsi_device *sd)
1103 {
1104 	struct mrsas_instance *instance;
1105 	int tgt = sd->sd_address.a_target;
1106 	int lun = sd->sd_address.a_lun;
1107 
1108 	instance = ADDR2MR(&sd->sd_address);
1109 
1110 	con_log(CL_ANN1, (CE_NOTE, "tgt_free t = %d l = %d", tgt, lun));
1111 
1112 	if (tgt < MRDRV_MAX_LD && lun == 0) {
1113 		if (instance->mr_ld_list[tgt].dip == tgt_dip) {
1114 			instance->mr_ld_list[tgt].dip = NULL;
1115 		}
1116 	}
1117 }
1118 
1119 static dev_info_t *
1120 mrsas_find_child(struct mrsas_instance *instance, uint16_t tgt, uint8_t lun)
1121 {
1122 	dev_info_t *child = NULL;
1123 	char addr[SCSI_MAXNAMELEN];
1124 	char tmp[MAXNAMELEN];
1125 
1126 	(void) sprintf(addr, "%x,%x", tgt, lun);
1127 	for (child = ddi_get_child(instance->dip); child;
1128 	    child = ddi_get_next_sibling(child)) {
1129 
1130 		if (mrsas_name_node(child, tmp, MAXNAMELEN) !=
1131 		    DDI_SUCCESS) {
1132 			continue;
1133 		}
1134 
1135 		if (strcmp(addr, tmp) == 0) {
1136 			break;
1137 		}
1138 	}
1139 	con_log(CL_ANN1, (CE_NOTE, "mrsas_find_child: return child = %p",
1140 	    (void *)child));
1141 	return (child);
1142 }
1143 
1144 static int
1145 mrsas_name_node(dev_info_t *dip, char *name, int len)
1146 {
1147 	int tgt, lun;
1148 
1149 	tgt = ddi_prop_get_int(DDI_DEV_T_ANY, dip,
1150 	    DDI_PROP_DONTPASS, "target", -1);
1151 	con_log(CL_ANN1, (CE_NOTE,
1152 	    "mrsas_name_node: dip %p tgt %d", (void *)dip, tgt));
1153 	if (tgt == -1) {
1154 		return (DDI_FAILURE);
1155 	}
1156 	lun = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
1157 	    "lun", -1);
1158 	con_log(CL_ANN1,
1159 	    (CE_NOTE, "mrsas_name_node: tgt %d lun %d", tgt, lun));
1160 	if (lun == -1) {
1161 		return (DDI_FAILURE);
1162 	}
1163 	(void) snprintf(name, len, "%x,%x", tgt, lun);
1164 	return (DDI_SUCCESS);
1165 }
1166 
1167 static struct scsi_pkt *
1168 mrsas_tran_init_pkt(struct scsi_address *ap, register struct scsi_pkt *pkt,
1169 	struct buf *bp, int cmdlen, int statuslen, int tgtlen,
1170 	int flags, int (*callback)(), caddr_t arg)
1171 {
1172 	struct scsa_cmd	*acmd;
1173 	struct mrsas_instance	*instance;
1174 	struct scsi_pkt	*new_pkt;
1175 
1176 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1177 
1178 	instance = ADDR2MR(ap);
1179 
1180 	/* step #1 : pkt allocation */
1181 	if (pkt == NULL) {
1182 		pkt = scsi_hba_pkt_alloc(instance->dip, ap, cmdlen, statuslen,
1183 		    tgtlen, sizeof (struct scsa_cmd), callback, arg);
1184 		if (pkt == NULL) {
1185 			return (NULL);
1186 		}
1187 
1188 		acmd = PKT2CMD(pkt);
1189 
1190 		/*
1191 		 * Initialize the new pkt - we redundantly initialize
1192 		 * all the fields for illustrative purposes.
1193 		 */
1194 		acmd->cmd_pkt		= pkt;
1195 		acmd->cmd_flags		= 0;
1196 		acmd->cmd_scblen	= statuslen;
1197 		acmd->cmd_cdblen	= cmdlen;
1198 		acmd->cmd_dmahandle	= NULL;
1199 		acmd->cmd_ncookies	= 0;
1200 		acmd->cmd_cookie	= 0;
1201 		acmd->cmd_cookiecnt	= 0;
1202 		acmd->cmd_nwin		= 0;
1203 
1204 		pkt->pkt_address	= *ap;
1205 		pkt->pkt_comp		= (void (*)())NULL;
1206 		pkt->pkt_flags		= 0;
1207 		pkt->pkt_time		= 0;
1208 		pkt->pkt_resid		= 0;
1209 		pkt->pkt_state		= 0;
1210 		pkt->pkt_statistics	= 0;
1211 		pkt->pkt_reason		= 0;
1212 		new_pkt			= pkt;
1213 	} else {
1214 		acmd = PKT2CMD(pkt);
1215 		new_pkt = NULL;
1216 	}
1217 
1218 	/* step #2 : dma allocation/move */
1219 	if (bp && bp->b_bcount != 0) {
1220 		if (acmd->cmd_dmahandle == NULL) {
1221 			if (mrsas_dma_alloc(instance, pkt, bp, flags,
1222 			    callback) == DDI_FAILURE) {
1223 				if (new_pkt) {
1224 					scsi_hba_pkt_free(ap, new_pkt);
1225 				}
1226 				return ((struct scsi_pkt *)NULL);
1227 			}
1228 		} else {
1229 			if (mrsas_dma_move(instance, pkt, bp) == DDI_FAILURE) {
1230 				return ((struct scsi_pkt *)NULL);
1231 			}
1232 		}
1233 	}
1234 
1235 	return (pkt);
1236 }
1237 
1238 static int
1239 mrsas_tran_start(struct scsi_address *ap, register struct scsi_pkt *pkt)
1240 {
1241 	uchar_t 	cmd_done = 0;
1242 
1243 	struct mrsas_instance	*instance = ADDR2MR(ap);
1244 	struct mrsas_cmd	*cmd;
1245 
1246 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d:SCSI CDB[0]=0x%x",
1247 	    __func__, __LINE__, pkt->pkt_cdbp[0]));
1248 
1249 	pkt->pkt_reason	= CMD_CMPLT;
1250 	*pkt->pkt_scbp = STATUS_GOOD; /* clear arq scsi_status */
1251 
1252 	cmd = build_cmd(instance, ap, pkt, &cmd_done);
1253 
1254 	/*
1255 	 * Check if the command is already completed by the mrsas_build_cmd()
1256 	 * routine. In which case the busy_flag would be clear and scb will be
1257 	 * NULL and appropriate reason provided in pkt_reason field
1258 	 */
1259 	if (cmd_done) {
1260 		pkt->pkt_reason = CMD_CMPLT;
1261 		pkt->pkt_scbp[0] = STATUS_GOOD;
1262 		pkt->pkt_state |= STATE_GOT_BUS | STATE_GOT_TARGET
1263 		    | STATE_SENT_CMD;
1264 		if (((pkt->pkt_flags & FLAG_NOINTR) == 0) && pkt->pkt_comp) {
1265 			(*pkt->pkt_comp)(pkt);
1266 		}
1267 
1268 		return (TRAN_ACCEPT);
1269 	}
1270 
1271 	if (cmd == NULL) {
1272 		return (TRAN_BUSY);
1273 	}
1274 
1275 	if ((pkt->pkt_flags & FLAG_NOINTR) == 0) {
1276 		if (instance->fw_outstanding > instance->max_fw_cmds) {
1277 			con_log(CL_ANN, (CE_CONT, "mr_sas:Firmware busy"));
1278 			DTRACE_PROBE2(start_tran_err,
1279 			    uint16_t, instance->fw_outstanding,
1280 			    uint16_t, instance->max_fw_cmds);
1281 			return_mfi_pkt(instance, cmd);
1282 			return (TRAN_BUSY);
1283 		}
1284 
1285 		/* Synchronize the Cmd frame for the controller */
1286 		(void) ddi_dma_sync(cmd->frame_dma_obj.dma_handle, 0, 0,
1287 		    DDI_DMA_SYNC_FORDEV);
1288 
1289 		instance->func_ptr->issue_cmd(cmd, instance);
1290 
1291 	} else {
1292 		struct mrsas_header *hdr = &cmd->frame->hdr;
1293 
1294 		cmd->sync_cmd = MRSAS_TRUE;
1295 
1296 		instance->func_ptr-> issue_cmd_in_poll_mode(instance, cmd);
1297 
1298 		pkt->pkt_reason		= CMD_CMPLT;
1299 		pkt->pkt_statistics	= 0;
1300 		pkt->pkt_state |= STATE_XFERRED_DATA | STATE_GOT_STATUS;
1301 
1302 		switch (ddi_get8(cmd->frame_dma_obj.acc_handle,
1303 		    &hdr->cmd_status)) {
1304 		case MFI_STAT_OK:
1305 			pkt->pkt_scbp[0] = STATUS_GOOD;
1306 			break;
1307 
1308 		case MFI_STAT_SCSI_DONE_WITH_ERROR:
1309 
1310 			pkt->pkt_reason	= CMD_CMPLT;
1311 			pkt->pkt_statistics = 0;
1312 
1313 			((struct scsi_status *)pkt->pkt_scbp)->sts_chk = 1;
1314 			break;
1315 
1316 		case MFI_STAT_DEVICE_NOT_FOUND:
1317 			pkt->pkt_reason		= CMD_DEV_GONE;
1318 			pkt->pkt_statistics	= STAT_DISCON;
1319 			break;
1320 
1321 		default:
1322 			((struct scsi_status *)pkt->pkt_scbp)->sts_busy = 1;
1323 		}
1324 
1325 		(void) mrsas_common_check(instance, cmd);
1326 		DTRACE_PROBE2(start_nointr_done, uint8_t, hdr->cmd,
1327 		    uint8_t, hdr->cmd_status);
1328 		return_mfi_pkt(instance, cmd);
1329 
1330 		if (pkt->pkt_comp) {
1331 			(*pkt->pkt_comp)(pkt);
1332 		}
1333 
1334 	}
1335 
1336 	return (TRAN_ACCEPT);
1337 }
1338 
1339 /*ARGSUSED*/
1340 static int
1341 mrsas_tran_abort(struct scsi_address *ap, struct scsi_pkt *pkt)
1342 {
1343 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1344 
1345 	/* abort command not supported by H/W */
1346 
1347 	return (DDI_FAILURE);
1348 }
1349 
1350 /*ARGSUSED*/
1351 static int
1352 mrsas_tran_reset(struct scsi_address *ap, int level)
1353 {
1354 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1355 
1356 	/* reset command not supported by H/W */
1357 
1358 	return (DDI_FAILURE);
1359 
1360 }
1361 
1362 /*ARGSUSED*/
1363 static int
1364 mrsas_tran_getcap(struct scsi_address *ap, char *cap, int whom)
1365 {
1366 	int	rval = 0;
1367 
1368 	struct mrsas_instance	*instance = ADDR2MR(ap);
1369 
1370 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1371 
1372 	/* we do allow inquiring about capabilities for other targets */
1373 	if (cap == NULL) {
1374 		return (-1);
1375 	}
1376 
1377 	switch (scsi_hba_lookup_capstr(cap)) {
1378 	case SCSI_CAP_DMA_MAX:
1379 		/* Limit to 16MB max transfer */
1380 		rval = mrsas_max_cap_maxxfer;
1381 		break;
1382 	case SCSI_CAP_MSG_OUT:
1383 		rval = 1;
1384 		break;
1385 	case SCSI_CAP_DISCONNECT:
1386 		rval = 0;
1387 		break;
1388 	case SCSI_CAP_SYNCHRONOUS:
1389 		rval = 0;
1390 		break;
1391 	case SCSI_CAP_WIDE_XFER:
1392 		rval = 1;
1393 		break;
1394 	case SCSI_CAP_TAGGED_QING:
1395 		rval = 1;
1396 		break;
1397 	case SCSI_CAP_UNTAGGED_QING:
1398 		rval = 1;
1399 		break;
1400 	case SCSI_CAP_PARITY:
1401 		rval = 1;
1402 		break;
1403 	case SCSI_CAP_INITIATOR_ID:
1404 		rval = instance->init_id;
1405 		break;
1406 	case SCSI_CAP_ARQ:
1407 		rval = 1;
1408 		break;
1409 	case SCSI_CAP_LINKED_CMDS:
1410 		rval = 0;
1411 		break;
1412 	case SCSI_CAP_RESET_NOTIFICATION:
1413 		rval = 1;
1414 		break;
1415 	case SCSI_CAP_GEOMETRY:
1416 		rval = -1;
1417 
1418 		break;
1419 	default:
1420 		con_log(CL_DLEVEL2, (CE_NOTE, "Default cap coming 0x%x",
1421 		    scsi_hba_lookup_capstr(cap)));
1422 		rval = -1;
1423 		break;
1424 	}
1425 
1426 	return (rval);
1427 }
1428 
1429 /*ARGSUSED*/
1430 static int
1431 mrsas_tran_setcap(struct scsi_address *ap, char *cap, int value, int whom)
1432 {
1433 	int		rval = 1;
1434 
1435 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1436 
1437 	/* We don't allow setting capabilities for other targets */
1438 	if (cap == NULL || whom == 0) {
1439 		return (-1);
1440 	}
1441 
1442 	switch (scsi_hba_lookup_capstr(cap)) {
1443 		case SCSI_CAP_DMA_MAX:
1444 		case SCSI_CAP_MSG_OUT:
1445 		case SCSI_CAP_PARITY:
1446 		case SCSI_CAP_LINKED_CMDS:
1447 		case SCSI_CAP_RESET_NOTIFICATION:
1448 		case SCSI_CAP_DISCONNECT:
1449 		case SCSI_CAP_SYNCHRONOUS:
1450 		case SCSI_CAP_UNTAGGED_QING:
1451 		case SCSI_CAP_WIDE_XFER:
1452 		case SCSI_CAP_INITIATOR_ID:
1453 		case SCSI_CAP_ARQ:
1454 			/*
1455 			 * None of these are settable via
1456 			 * the capability interface.
1457 			 */
1458 			break;
1459 		case SCSI_CAP_TAGGED_QING:
1460 			rval = 1;
1461 			break;
1462 		case SCSI_CAP_SECTOR_SIZE:
1463 			rval = 1;
1464 			break;
1465 
1466 		case SCSI_CAP_TOTAL_SECTORS:
1467 			rval = 1;
1468 			break;
1469 		default:
1470 			rval = -1;
1471 			break;
1472 	}
1473 
1474 	return (rval);
1475 }
1476 
1477 static void
1478 mrsas_tran_destroy_pkt(struct scsi_address *ap, struct scsi_pkt *pkt)
1479 {
1480 	struct scsa_cmd *acmd = PKT2CMD(pkt);
1481 
1482 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1483 
1484 	if (acmd->cmd_flags & CFLAG_DMAVALID) {
1485 		acmd->cmd_flags &= ~CFLAG_DMAVALID;
1486 
1487 		(void) ddi_dma_unbind_handle(acmd->cmd_dmahandle);
1488 
1489 		ddi_dma_free_handle(&acmd->cmd_dmahandle);
1490 
1491 		acmd->cmd_dmahandle = NULL;
1492 	}
1493 
1494 	/* free the pkt */
1495 	scsi_hba_pkt_free(ap, pkt);
1496 }
1497 
1498 /*ARGSUSED*/
1499 static void
1500 mrsas_tran_dmafree(struct scsi_address *ap, struct scsi_pkt *pkt)
1501 {
1502 	register struct scsa_cmd *acmd = PKT2CMD(pkt);
1503 
1504 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1505 
1506 	if (acmd->cmd_flags & CFLAG_DMAVALID) {
1507 		acmd->cmd_flags &= ~CFLAG_DMAVALID;
1508 
1509 		(void) ddi_dma_unbind_handle(acmd->cmd_dmahandle);
1510 
1511 		ddi_dma_free_handle(&acmd->cmd_dmahandle);
1512 
1513 		acmd->cmd_dmahandle = NULL;
1514 	}
1515 }
1516 
1517 /*ARGSUSED*/
1518 static void
1519 mrsas_tran_sync_pkt(struct scsi_address *ap, struct scsi_pkt *pkt)
1520 {
1521 	register struct scsa_cmd	*acmd = PKT2CMD(pkt);
1522 
1523 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1524 
1525 	if (acmd->cmd_flags & CFLAG_DMAVALID) {
1526 		(void) ddi_dma_sync(acmd->cmd_dmahandle, acmd->cmd_dma_offset,
1527 		    acmd->cmd_dma_len, (acmd->cmd_flags & CFLAG_DMASEND) ?
1528 		    DDI_DMA_SYNC_FORDEV : DDI_DMA_SYNC_FORCPU);
1529 	}
1530 }
1531 
1532 /*
1533  * mrsas_isr(caddr_t)
1534  *
1535  * The Interrupt Service Routine
1536  *
1537  * Collect status for all completed commands and do callback
1538  *
1539  */
1540 static uint_t
1541 mrsas_isr(struct mrsas_instance *instance)
1542 {
1543 	int		need_softintr;
1544 	uint32_t	producer;
1545 	uint32_t	consumer;
1546 	uint32_t	context;
1547 
1548 	struct mrsas_cmd	*cmd;
1549 
1550 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1551 
1552 	ASSERT(instance);
1553 	if ((instance->intr_type == DDI_INTR_TYPE_FIXED) &&
1554 	    !instance->func_ptr->intr_ack(instance)) {
1555 		return (DDI_INTR_UNCLAIMED);
1556 	}
1557 
1558 	(void) ddi_dma_sync(instance->mfi_internal_dma_obj.dma_handle,
1559 	    0, 0, DDI_DMA_SYNC_FORCPU);
1560 
1561 	if (mrsas_check_dma_handle(instance->mfi_internal_dma_obj.dma_handle)
1562 	    != DDI_SUCCESS) {
1563 		mrsas_fm_ereport(instance, DDI_FM_DEVICE_NO_RESPONSE);
1564 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
1565 		return (DDI_INTR_CLAIMED);
1566 	}
1567 
1568 	producer = ddi_get32(instance->mfi_internal_dma_obj.acc_handle,
1569 	    instance->producer);
1570 	consumer = ddi_get32(instance->mfi_internal_dma_obj.acc_handle,
1571 	    instance->consumer);
1572 
1573 	con_log(CL_ANN1, (CE_CONT, " producer %x consumer %x ",
1574 	    producer, consumer));
1575 	if (producer == consumer) {
1576 		con_log(CL_ANN1, (CE_WARN, "producer = consumer case"));
1577 		DTRACE_PROBE2(isr_pc_err, uint32_t, producer,
1578 		    uint32_t, consumer);
1579 		return (DDI_INTR_CLAIMED);
1580 	}
1581 	mutex_enter(&instance->completed_pool_mtx);
1582 
1583 	while (consumer != producer) {
1584 		context = ddi_get32(instance->mfi_internal_dma_obj.acc_handle,
1585 		    &instance->reply_queue[consumer]);
1586 		cmd = instance->cmd_list[context];
1587 		mlist_add_tail(&cmd->list, &instance->completed_pool_list);
1588 
1589 		consumer++;
1590 		if (consumer == (instance->max_fw_cmds + 1)) {
1591 			consumer = 0;
1592 		}
1593 	}
1594 
1595 	mutex_exit(&instance->completed_pool_mtx);
1596 
1597 	ddi_put32(instance->mfi_internal_dma_obj.acc_handle,
1598 	    instance->consumer, consumer);
1599 	(void) ddi_dma_sync(instance->mfi_internal_dma_obj.dma_handle,
1600 	    0, 0, DDI_DMA_SYNC_FORDEV);
1601 
1602 	if (instance->softint_running) {
1603 		need_softintr = 0;
1604 	} else {
1605 		need_softintr = 1;
1606 	}
1607 
1608 	if (instance->isr_level == HIGH_LEVEL_INTR) {
1609 		if (need_softintr) {
1610 			ddi_trigger_softintr(instance->soft_intr_id);
1611 		}
1612 	} else {
1613 		/*
1614 		 * Not a high-level interrupt, therefore call the soft level
1615 		 * interrupt explicitly
1616 		 */
1617 		(void) mrsas_softintr(instance);
1618 	}
1619 
1620 	return (DDI_INTR_CLAIMED);
1621 }
1622 
1623 
1624 /*
1625  * ************************************************************************** *
1626  *                                                                            *
1627  *                                  libraries                                 *
1628  *                                                                            *
1629  * ************************************************************************** *
1630  */
1631 /*
1632  * get_mfi_pkt : Get a command from the free pool
1633  * After successful allocation, the caller of this routine
1634  * must clear the frame buffer (memset to zero) before
1635  * using the packet further.
1636  *
1637  * ***** Note *****
1638  * After clearing the frame buffer the context id of the
1639  * frame buffer SHOULD be restored back.
1640  */
1641 static struct mrsas_cmd *
1642 get_mfi_pkt(struct mrsas_instance *instance)
1643 {
1644 	mlist_t 		*head = &instance->cmd_pool_list;
1645 	struct mrsas_cmd	*cmd = NULL;
1646 
1647 	mutex_enter(&instance->cmd_pool_mtx);
1648 	ASSERT(mutex_owned(&instance->cmd_pool_mtx));
1649 
1650 	if (!mlist_empty(head)) {
1651 		cmd = mlist_entry(head->next, struct mrsas_cmd, list);
1652 		mlist_del_init(head->next);
1653 	}
1654 	if (cmd != NULL)
1655 		cmd->pkt = NULL;
1656 	mutex_exit(&instance->cmd_pool_mtx);
1657 
1658 	return (cmd);
1659 }
1660 
1661 /*
1662  * return_mfi_pkt : Return a cmd to free command pool
1663  */
1664 static void
1665 return_mfi_pkt(struct mrsas_instance *instance, struct mrsas_cmd *cmd)
1666 {
1667 	mutex_enter(&instance->cmd_pool_mtx);
1668 	ASSERT(mutex_owned(&instance->cmd_pool_mtx));
1669 
1670 	mlist_add(&cmd->list, &instance->cmd_pool_list);
1671 
1672 	mutex_exit(&instance->cmd_pool_mtx);
1673 }
1674 
1675 /*
1676  * destroy_mfi_frame_pool
1677  */
1678 static void
1679 destroy_mfi_frame_pool(struct mrsas_instance *instance)
1680 {
1681 	int		i;
1682 	uint32_t	max_cmd = instance->max_fw_cmds;
1683 
1684 	struct mrsas_cmd	*cmd;
1685 
1686 	/* return all frames to pool */
1687 	for (i = 0; i < max_cmd+1; i++) {
1688 
1689 		cmd = instance->cmd_list[i];
1690 
1691 		if (cmd->frame_dma_obj_status == DMA_OBJ_ALLOCATED)
1692 			(void) mrsas_free_dma_obj(instance, cmd->frame_dma_obj);
1693 
1694 		cmd->frame_dma_obj_status  = DMA_OBJ_FREED;
1695 	}
1696 
1697 }
1698 
1699 /*
1700  * create_mfi_frame_pool
1701  */
1702 static int
1703 create_mfi_frame_pool(struct mrsas_instance *instance)
1704 {
1705 	int		i = 0;
1706 	int		cookie_cnt;
1707 	uint16_t	max_cmd;
1708 	uint16_t	sge_sz;
1709 	uint32_t	sgl_sz;
1710 	uint32_t	tot_frame_size;
1711 	struct mrsas_cmd	*cmd;
1712 
1713 	max_cmd = instance->max_fw_cmds;
1714 
1715 	sge_sz	= sizeof (struct mrsas_sge64);
1716 
1717 	/* calculated the number of 64byte frames required for SGL */
1718 	sgl_sz		= sge_sz * instance->max_num_sge;
1719 	tot_frame_size	= sgl_sz + MRMFI_FRAME_SIZE + SENSE_LENGTH;
1720 
1721 	con_log(CL_DLEVEL3, (CE_NOTE, "create_mfi_frame_pool: "
1722 	    "sgl_sz %x tot_frame_size %x", sgl_sz, tot_frame_size));
1723 
1724 	while (i < max_cmd+1) {
1725 		cmd = instance->cmd_list[i];
1726 
1727 		cmd->frame_dma_obj.size	= tot_frame_size;
1728 		cmd->frame_dma_obj.dma_attr = mrsas_generic_dma_attr;
1729 		cmd->frame_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
1730 		cmd->frame_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
1731 		cmd->frame_dma_obj.dma_attr.dma_attr_sgllen = 1;
1732 		cmd->frame_dma_obj.dma_attr.dma_attr_align = 64;
1733 
1734 
1735 		cookie_cnt = mrsas_alloc_dma_obj(instance, &cmd->frame_dma_obj,
1736 		    (uchar_t)DDI_STRUCTURE_LE_ACC);
1737 
1738 		if (cookie_cnt == -1 || cookie_cnt > 1) {
1739 			con_log(CL_ANN, (CE_WARN,
1740 			    "create_mfi_frame_pool: could not alloc."));
1741 			return (DDI_FAILURE);
1742 		}
1743 
1744 		bzero(cmd->frame_dma_obj.buffer, tot_frame_size);
1745 
1746 		cmd->frame_dma_obj_status = DMA_OBJ_ALLOCATED;
1747 		cmd->frame = (union mrsas_frame *)cmd->frame_dma_obj.buffer;
1748 		cmd->frame_phys_addr =
1749 		    cmd->frame_dma_obj.dma_cookie[0].dmac_address;
1750 
1751 		cmd->sense = (uint8_t *)(((unsigned long)
1752 		    cmd->frame_dma_obj.buffer) +
1753 		    tot_frame_size - SENSE_LENGTH);
1754 		cmd->sense_phys_addr =
1755 		    cmd->frame_dma_obj.dma_cookie[0].dmac_address +
1756 		    tot_frame_size - SENSE_LENGTH;
1757 
1758 		if (!cmd->frame || !cmd->sense) {
1759 			con_log(CL_ANN, (CE_NOTE,
1760 			    "mr_sas: pci_pool_alloc failed"));
1761 
1762 			return (ENOMEM);
1763 		}
1764 
1765 		ddi_put32(cmd->frame_dma_obj.acc_handle,
1766 		    &cmd->frame->io.context, cmd->index);
1767 		i++;
1768 
1769 		con_log(CL_DLEVEL3, (CE_NOTE, "[%x]-%x",
1770 		    cmd->index, cmd->frame_phys_addr));
1771 	}
1772 
1773 	return (DDI_SUCCESS);
1774 }
1775 
1776 /*
1777  * free_additional_dma_buffer
1778  */
1779 static void
1780 free_additional_dma_buffer(struct mrsas_instance *instance)
1781 {
1782 	if (instance->mfi_internal_dma_obj.status == DMA_OBJ_ALLOCATED) {
1783 		(void) mrsas_free_dma_obj(instance,
1784 		    instance->mfi_internal_dma_obj);
1785 		instance->mfi_internal_dma_obj.status = DMA_OBJ_FREED;
1786 	}
1787 
1788 	if (instance->mfi_evt_detail_obj.status == DMA_OBJ_ALLOCATED) {
1789 		(void) mrsas_free_dma_obj(instance,
1790 		    instance->mfi_evt_detail_obj);
1791 		instance->mfi_evt_detail_obj.status = DMA_OBJ_FREED;
1792 	}
1793 }
1794 
1795 /*
1796  * alloc_additional_dma_buffer
1797  */
1798 static int
1799 alloc_additional_dma_buffer(struct mrsas_instance *instance)
1800 {
1801 	uint32_t	reply_q_sz;
1802 	uint32_t	internal_buf_size = PAGESIZE*2;
1803 
1804 	/* max cmds plus 1 + producer & consumer */
1805 	reply_q_sz = sizeof (uint32_t) * (instance->max_fw_cmds + 1 + 2);
1806 
1807 	instance->mfi_internal_dma_obj.size = internal_buf_size;
1808 	instance->mfi_internal_dma_obj.dma_attr	= mrsas_generic_dma_attr;
1809 	instance->mfi_internal_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
1810 	instance->mfi_internal_dma_obj.dma_attr.dma_attr_count_max =
1811 	    0xFFFFFFFFU;
1812 	instance->mfi_internal_dma_obj.dma_attr.dma_attr_sgllen	= 1;
1813 
1814 	if (mrsas_alloc_dma_obj(instance, &instance->mfi_internal_dma_obj,
1815 	    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
1816 		con_log(CL_ANN, (CE_WARN,
1817 		    "mr_sas: could not alloc reply queue"));
1818 		return (DDI_FAILURE);
1819 	}
1820 
1821 	bzero(instance->mfi_internal_dma_obj.buffer, internal_buf_size);
1822 
1823 	instance->mfi_internal_dma_obj.status |= DMA_OBJ_ALLOCATED;
1824 
1825 	instance->producer = (uint32_t *)((unsigned long)
1826 	    instance->mfi_internal_dma_obj.buffer);
1827 	instance->consumer = (uint32_t *)((unsigned long)
1828 	    instance->mfi_internal_dma_obj.buffer + 4);
1829 	instance->reply_queue = (uint32_t *)((unsigned long)
1830 	    instance->mfi_internal_dma_obj.buffer + 8);
1831 	instance->internal_buf = (caddr_t)(((unsigned long)
1832 	    instance->mfi_internal_dma_obj.buffer) + reply_q_sz + 8);
1833 	instance->internal_buf_dmac_add =
1834 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address +
1835 	    (reply_q_sz + 8);
1836 	instance->internal_buf_size = internal_buf_size -
1837 	    (reply_q_sz + 8);
1838 
1839 	/* allocate evt_detail */
1840 	instance->mfi_evt_detail_obj.size = sizeof (struct mrsas_evt_detail);
1841 	instance->mfi_evt_detail_obj.dma_attr = mrsas_generic_dma_attr;
1842 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
1843 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
1844 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_sgllen = 1;
1845 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_align = 1;
1846 
1847 	if (mrsas_alloc_dma_obj(instance, &instance->mfi_evt_detail_obj,
1848 	    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
1849 		con_log(CL_ANN, (CE_WARN, "alloc_additional_dma_buffer: "
1850 		    "could not allocate data transfer buffer."));
1851 		return (DDI_FAILURE);
1852 	}
1853 
1854 	bzero(instance->mfi_evt_detail_obj.buffer,
1855 	    sizeof (struct mrsas_evt_detail));
1856 
1857 	instance->mfi_evt_detail_obj.status |= DMA_OBJ_ALLOCATED;
1858 
1859 	return (DDI_SUCCESS);
1860 }
1861 
1862 /*
1863  * free_space_for_mfi
1864  */
1865 static void
1866 free_space_for_mfi(struct mrsas_instance *instance)
1867 {
1868 	int		i;
1869 	uint32_t	max_cmd = instance->max_fw_cmds;
1870 
1871 	/* already freed */
1872 	if (instance->cmd_list == NULL) {
1873 		return;
1874 	}
1875 
1876 	free_additional_dma_buffer(instance);
1877 
1878 	/* first free the MFI frame pool */
1879 	destroy_mfi_frame_pool(instance);
1880 
1881 	/* free all the commands in the cmd_list */
1882 	for (i = 0; i < instance->max_fw_cmds+1; i++) {
1883 		kmem_free(instance->cmd_list[i],
1884 		    sizeof (struct mrsas_cmd));
1885 
1886 		instance->cmd_list[i] = NULL;
1887 	}
1888 
1889 	/* free the cmd_list buffer itself */
1890 	kmem_free(instance->cmd_list,
1891 	    sizeof (struct mrsas_cmd *) * (max_cmd+1));
1892 
1893 	instance->cmd_list = NULL;
1894 
1895 	INIT_LIST_HEAD(&instance->cmd_pool_list);
1896 }
1897 
1898 /*
1899  * alloc_space_for_mfi
1900  */
1901 static int
1902 alloc_space_for_mfi(struct mrsas_instance *instance)
1903 {
1904 	int		i;
1905 	uint32_t	max_cmd;
1906 	size_t		sz;
1907 
1908 	struct mrsas_cmd	*cmd;
1909 
1910 	max_cmd = instance->max_fw_cmds;
1911 
1912 	/* reserve 1 more slot for flush_cache */
1913 	sz = sizeof (struct mrsas_cmd *) * (max_cmd+1);
1914 
1915 	/*
1916 	 * instance->cmd_list is an array of struct mrsas_cmd pointers.
1917 	 * Allocate the dynamic array first and then allocate individual
1918 	 * commands.
1919 	 */
1920 	instance->cmd_list = kmem_zalloc(sz, KM_SLEEP);
1921 	ASSERT(instance->cmd_list);
1922 
1923 	for (i = 0; i < max_cmd+1; i++) {
1924 		instance->cmd_list[i] = kmem_zalloc(sizeof (struct mrsas_cmd),
1925 		    KM_SLEEP);
1926 		ASSERT(instance->cmd_list[i]);
1927 	}
1928 
1929 	INIT_LIST_HEAD(&instance->cmd_pool_list);
1930 
1931 	/* add all the commands to command pool (instance->cmd_pool) */
1932 	for (i = 0; i < max_cmd; i++) {
1933 		cmd		= instance->cmd_list[i];
1934 		cmd->index	= i;
1935 
1936 		mlist_add_tail(&cmd->list, &instance->cmd_pool_list);
1937 	}
1938 
1939 	/* single slot for flush_cache won't be added in command pool */
1940 	cmd		= instance->cmd_list[max_cmd];
1941 	cmd->index	= i;
1942 
1943 	/* create a frame pool and assign one frame to each cmd */
1944 	if (create_mfi_frame_pool(instance)) {
1945 		con_log(CL_ANN, (CE_NOTE, "error creating frame DMA pool"));
1946 		return (DDI_FAILURE);
1947 	}
1948 
1949 	/* create a frame pool and assign one frame to each cmd */
1950 	if (alloc_additional_dma_buffer(instance)) {
1951 		con_log(CL_ANN, (CE_NOTE, "error creating frame DMA pool"));
1952 		return (DDI_FAILURE);
1953 	}
1954 
1955 	return (DDI_SUCCESS);
1956 }
1957 
1958 /*
1959  * get_ctrl_info
1960  */
1961 static int
1962 get_ctrl_info(struct mrsas_instance *instance,
1963     struct mrsas_ctrl_info *ctrl_info)
1964 {
1965 	int	ret = 0;
1966 
1967 	struct mrsas_cmd		*cmd;
1968 	struct mrsas_dcmd_frame	*dcmd;
1969 	struct mrsas_ctrl_info	*ci;
1970 
1971 	cmd = get_mfi_pkt(instance);
1972 
1973 	if (!cmd) {
1974 		con_log(CL_ANN, (CE_WARN,
1975 		    "Failed to get a cmd for ctrl info"));
1976 		DTRACE_PROBE2(info_mfi_err, uint16_t, instance->fw_outstanding,
1977 		    uint16_t, instance->max_fw_cmds);
1978 		return (DDI_FAILURE);
1979 	}
1980 	/* Clear the frame buffer and assign back the context id */
1981 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
1982 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
1983 	    cmd->index);
1984 
1985 	dcmd = &cmd->frame->dcmd;
1986 
1987 	ci = (struct mrsas_ctrl_info *)instance->internal_buf;
1988 
1989 	if (!ci) {
1990 		con_log(CL_ANN, (CE_WARN,
1991 		    "Failed to alloc mem for ctrl info"));
1992 		return_mfi_pkt(instance, cmd);
1993 		return (DDI_FAILURE);
1994 	}
1995 
1996 	(void) memset(ci, 0, sizeof (struct mrsas_ctrl_info));
1997 
1998 	/* for( i = 0; i < DCMD_MBOX_SZ; i++ ) dcmd->mbox.b[i] = 0; */
1999 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
2000 
2001 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
2002 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status,
2003 	    MFI_CMD_STATUS_POLL_MODE);
2004 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 1);
2005 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
2006 	    MFI_FRAME_DIR_READ);
2007 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
2008 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len,
2009 	    sizeof (struct mrsas_ctrl_info));
2010 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
2011 	    MR_DCMD_CTRL_GET_INFO);
2012 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].phys_addr,
2013 	    instance->internal_buf_dmac_add);
2014 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].length,
2015 	    sizeof (struct mrsas_ctrl_info));
2016 
2017 	cmd->frame_count = 1;
2018 
2019 	if (!instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
2020 		ret = 0;
2021 		ctrl_info->max_request_size = ddi_get32(
2022 		    cmd->frame_dma_obj.acc_handle, &ci->max_request_size);
2023 		ctrl_info->ld_present_count = ddi_get16(
2024 		    cmd->frame_dma_obj.acc_handle, &ci->ld_present_count);
2025 		ddi_rep_get8(cmd->frame_dma_obj.acc_handle,
2026 		    (uint8_t *)(ctrl_info->product_name),
2027 		    (uint8_t *)(ci->product_name), 80 * sizeof (char),
2028 		    DDI_DEV_AUTOINCR);
2029 		/* should get more members of ci with ddi_get when needed */
2030 	} else {
2031 		con_log(CL_ANN, (CE_WARN, "get_ctrl_info: Ctrl info failed"));
2032 		ret = -1;
2033 	}
2034 
2035 	if (mrsas_common_check(instance, cmd) != DDI_SUCCESS) {
2036 		ret = -1;
2037 	}
2038 	return_mfi_pkt(instance, cmd);
2039 
2040 	return (ret);
2041 }
2042 
2043 /*
2044  * abort_aen_cmd
2045  */
2046 static int
2047 abort_aen_cmd(struct mrsas_instance *instance,
2048     struct mrsas_cmd *cmd_to_abort)
2049 {
2050 	int	ret = 0;
2051 
2052 	struct mrsas_cmd		*cmd;
2053 	struct mrsas_abort_frame	*abort_fr;
2054 
2055 	cmd = get_mfi_pkt(instance);
2056 
2057 	if (!cmd) {
2058 		con_log(CL_ANN, (CE_WARN,
2059 		    "Failed to get a cmd for ctrl info"));
2060 		DTRACE_PROBE2(abort_mfi_err, uint16_t, instance->fw_outstanding,
2061 		    uint16_t, instance->max_fw_cmds);
2062 		return (DDI_FAILURE);
2063 	}
2064 	/* Clear the frame buffer and assign back the context id */
2065 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
2066 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
2067 	    cmd->index);
2068 
2069 	abort_fr = &cmd->frame->abort;
2070 
2071 	/* prepare and issue the abort frame */
2072 	ddi_put8(cmd->frame_dma_obj.acc_handle,
2073 	    &abort_fr->cmd, MFI_CMD_OP_ABORT);
2074 	ddi_put8(cmd->frame_dma_obj.acc_handle, &abort_fr->cmd_status,
2075 	    MFI_CMD_STATUS_SYNC_MODE);
2076 	ddi_put16(cmd->frame_dma_obj.acc_handle, &abort_fr->flags, 0);
2077 	ddi_put32(cmd->frame_dma_obj.acc_handle, &abort_fr->abort_context,
2078 	    cmd_to_abort->index);
2079 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2080 	    &abort_fr->abort_mfi_phys_addr_lo, cmd_to_abort->frame_phys_addr);
2081 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2082 	    &abort_fr->abort_mfi_phys_addr_hi, 0);
2083 
2084 	instance->aen_cmd->abort_aen = 1;
2085 
2086 	cmd->sync_cmd = MRSAS_TRUE;
2087 	cmd->frame_count = 1;
2088 
2089 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
2090 		con_log(CL_ANN, (CE_WARN,
2091 		    "abort_aen_cmd: issue_cmd_in_sync_mode failed"));
2092 		ret = -1;
2093 	} else {
2094 		ret = 0;
2095 	}
2096 
2097 	instance->aen_cmd->abort_aen = 1;
2098 	instance->aen_cmd = 0;
2099 
2100 	(void) mrsas_common_check(instance, cmd);
2101 
2102 	return_mfi_pkt(instance, cmd);
2103 
2104 	return (ret);
2105 }
2106 
2107 /*
2108  * init_mfi
2109  */
2110 static int
2111 init_mfi(struct mrsas_instance *instance)
2112 {
2113 	struct mrsas_cmd		*cmd;
2114 	struct mrsas_ctrl_info		ctrl_info;
2115 	struct mrsas_init_frame		*init_frame;
2116 	struct mrsas_init_queue_info	*initq_info;
2117 
2118 	/* we expect the FW state to be READY */
2119 	if (mfi_state_transition_to_ready(instance)) {
2120 		con_log(CL_ANN, (CE_WARN, "mr_sas: F/W is not ready"));
2121 		goto fail_ready_state;
2122 	}
2123 
2124 	/* get various operational parameters from status register */
2125 	instance->max_num_sge =
2126 	    (instance->func_ptr->read_fw_status_reg(instance) &
2127 	    0xFF0000) >> 0x10;
2128 	/*
2129 	 * Reduce the max supported cmds by 1. This is to ensure that the
2130 	 * reply_q_sz (1 more than the max cmd that driver may send)
2131 	 * does not exceed max cmds that the FW can support
2132 	 */
2133 	instance->max_fw_cmds =
2134 	    instance->func_ptr->read_fw_status_reg(instance) & 0xFFFF;
2135 	instance->max_fw_cmds = instance->max_fw_cmds - 1;
2136 
2137 	instance->max_num_sge =
2138 	    (instance->max_num_sge > MRSAS_MAX_SGE_CNT) ?
2139 	    MRSAS_MAX_SGE_CNT : instance->max_num_sge;
2140 
2141 	/* create a pool of commands */
2142 	if (alloc_space_for_mfi(instance) != DDI_SUCCESS)
2143 		goto fail_alloc_fw_space;
2144 
2145 	/*
2146 	 * Prepare a init frame. Note the init frame points to queue info
2147 	 * structure. Each frame has SGL allocated after first 64 bytes. For
2148 	 * this frame - since we don't need any SGL - we use SGL's space as
2149 	 * queue info structure
2150 	 */
2151 	cmd = get_mfi_pkt(instance);
2152 	/* Clear the frame buffer and assign back the context id */
2153 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
2154 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
2155 	    cmd->index);
2156 
2157 	init_frame = (struct mrsas_init_frame *)cmd->frame;
2158 	initq_info = (struct mrsas_init_queue_info *)
2159 	    ((unsigned long)init_frame + 64);
2160 
2161 	(void) memset(init_frame, 0, MRMFI_FRAME_SIZE);
2162 	(void) memset(initq_info, 0, sizeof (struct mrsas_init_queue_info));
2163 
2164 	ddi_put32(cmd->frame_dma_obj.acc_handle, &initq_info->init_flags, 0);
2165 
2166 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2167 	    &initq_info->reply_queue_entries, instance->max_fw_cmds + 1);
2168 
2169 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2170 	    &initq_info->producer_index_phys_addr_hi, 0);
2171 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2172 	    &initq_info->producer_index_phys_addr_lo,
2173 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address);
2174 
2175 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2176 	    &initq_info->consumer_index_phys_addr_hi, 0);
2177 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2178 	    &initq_info->consumer_index_phys_addr_lo,
2179 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address + 4);
2180 
2181 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2182 	    &initq_info->reply_queue_start_phys_addr_hi, 0);
2183 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2184 	    &initq_info->reply_queue_start_phys_addr_lo,
2185 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address + 8);
2186 
2187 	ddi_put8(cmd->frame_dma_obj.acc_handle,
2188 	    &init_frame->cmd, MFI_CMD_OP_INIT);
2189 	ddi_put8(cmd->frame_dma_obj.acc_handle, &init_frame->cmd_status,
2190 	    MFI_CMD_STATUS_POLL_MODE);
2191 	ddi_put16(cmd->frame_dma_obj.acc_handle, &init_frame->flags, 0);
2192 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2193 	    &init_frame->queue_info_new_phys_addr_lo,
2194 	    cmd->frame_phys_addr + 64);
2195 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2196 	    &init_frame->queue_info_new_phys_addr_hi, 0);
2197 
2198 	ddi_put32(cmd->frame_dma_obj.acc_handle, &init_frame->data_xfer_len,
2199 	    sizeof (struct mrsas_init_queue_info));
2200 
2201 	cmd->frame_count = 1;
2202 
2203 	/* issue the init frame in polled mode */
2204 	if (instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
2205 		con_log(CL_ANN, (CE_WARN, "failed to init firmware"));
2206 		return_mfi_pkt(instance, cmd);
2207 		goto fail_fw_init;
2208 	}
2209 
2210 	if (mrsas_common_check(instance, cmd) != DDI_SUCCESS) {
2211 		return_mfi_pkt(instance, cmd);
2212 		goto fail_fw_init;
2213 	}
2214 
2215 	return_mfi_pkt(instance, cmd);
2216 
2217 	/* gather misc FW related information */
2218 	if (!get_ctrl_info(instance, &ctrl_info)) {
2219 		instance->max_sectors_per_req = ctrl_info.max_request_size;
2220 		con_log(CL_ANN1, (CE_NOTE, "product name %s ld present %d",
2221 		    ctrl_info.product_name, ctrl_info.ld_present_count));
2222 	} else {
2223 		instance->max_sectors_per_req = instance->max_num_sge *
2224 		    PAGESIZE / 512;
2225 	}
2226 
2227 	return (DDI_SUCCESS);
2228 
2229 fail_fw_init:
2230 fail_alloc_fw_space:
2231 
2232 	free_space_for_mfi(instance);
2233 
2234 fail_ready_state:
2235 	ddi_regs_map_free(&instance->regmap_handle);
2236 
2237 fail_mfi_reg_setup:
2238 	return (DDI_FAILURE);
2239 }
2240 
2241 /*
2242  * mfi_state_transition_to_ready	: Move the FW to READY state
2243  *
2244  * @reg_set			: MFI register set
2245  */
2246 static int
2247 mfi_state_transition_to_ready(struct mrsas_instance *instance)
2248 {
2249 	int		i;
2250 	uint8_t		max_wait;
2251 	uint32_t	fw_ctrl;
2252 	uint32_t	fw_state;
2253 	uint32_t	cur_state;
2254 
2255 	fw_state =
2256 	    instance->func_ptr->read_fw_status_reg(instance) & MFI_STATE_MASK;
2257 	con_log(CL_ANN1, (CE_NOTE,
2258 	    "mfi_state_transition_to_ready:FW state = 0x%x", fw_state));
2259 
2260 	while (fw_state != MFI_STATE_READY) {
2261 		con_log(CL_ANN, (CE_NOTE,
2262 		    "mfi_state_transition_to_ready:FW state%x", fw_state));
2263 
2264 		switch (fw_state) {
2265 		case MFI_STATE_FAULT:
2266 			con_log(CL_ANN, (CE_NOTE,
2267 			    "mr_sas: FW in FAULT state!!"));
2268 
2269 			return (ENODEV);
2270 		case MFI_STATE_WAIT_HANDSHAKE:
2271 			/* set the CLR bit in IMR0 */
2272 			con_log(CL_ANN, (CE_NOTE,
2273 			    "mr_sas: FW waiting for HANDSHAKE"));
2274 			/*
2275 			 * PCI_Hot Plug: MFI F/W requires
2276 			 * (MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG)
2277 			 * to be set
2278 			 */
2279 			/* WR_IB_MSG_0(MFI_INIT_CLEAR_HANDSHAKE, instance); */
2280 			WR_IB_DOORBELL(MFI_INIT_CLEAR_HANDSHAKE |
2281 			    MFI_INIT_HOTPLUG, instance);
2282 
2283 			max_wait	= 2;
2284 			cur_state	= MFI_STATE_WAIT_HANDSHAKE;
2285 			break;
2286 		case MFI_STATE_BOOT_MESSAGE_PENDING:
2287 			/* set the CLR bit in IMR0 */
2288 			con_log(CL_ANN, (CE_NOTE,
2289 			    "mr_sas: FW state boot message pending"));
2290 			/*
2291 			 * PCI_Hot Plug: MFI F/W requires
2292 			 * (MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG)
2293 			 * to be set
2294 			 */
2295 			WR_IB_DOORBELL(MFI_INIT_HOTPLUG, instance);
2296 
2297 			max_wait	= 10;
2298 			cur_state	= MFI_STATE_BOOT_MESSAGE_PENDING;
2299 			break;
2300 		case MFI_STATE_OPERATIONAL:
2301 			/* bring it to READY state; assuming max wait 2 secs */
2302 			instance->func_ptr->disable_intr(instance);
2303 			con_log(CL_ANN1, (CE_NOTE,
2304 			    "mr_sas: FW in OPERATIONAL state"));
2305 			/*
2306 			 * PCI_Hot Plug: MFI F/W requires
2307 			 * (MFI_INIT_READY | MFI_INIT_MFIMODE | MFI_INIT_ABORT)
2308 			 * to be set
2309 			 */
2310 			/* WR_IB_DOORBELL(MFI_INIT_READY, instance); */
2311 			WR_IB_DOORBELL(MFI_RESET_FLAGS, instance);
2312 
2313 			max_wait	= 10;
2314 			cur_state	= MFI_STATE_OPERATIONAL;
2315 			break;
2316 		case MFI_STATE_UNDEFINED:
2317 			/* this state should not last for more than 2 seconds */
2318 			con_log(CL_ANN, (CE_NOTE, "FW state undefined"));
2319 
2320 			max_wait	= 2;
2321 			cur_state	= MFI_STATE_UNDEFINED;
2322 			break;
2323 		case MFI_STATE_BB_INIT:
2324 			max_wait	= 2;
2325 			cur_state	= MFI_STATE_BB_INIT;
2326 			break;
2327 		case MFI_STATE_FW_INIT:
2328 			max_wait	= 2;
2329 			cur_state	= MFI_STATE_FW_INIT;
2330 			break;
2331 		case MFI_STATE_DEVICE_SCAN:
2332 			max_wait	= 10;
2333 			cur_state	= MFI_STATE_DEVICE_SCAN;
2334 			break;
2335 		default:
2336 			con_log(CL_ANN, (CE_NOTE,
2337 			    "mr_sas: Unknown state 0x%x", fw_state));
2338 			return (ENODEV);
2339 		}
2340 
2341 		/* the cur_state should not last for more than max_wait secs */
2342 		for (i = 0; i < (max_wait * MILLISEC); i++) {
2343 			/* fw_state = RD_OB_MSG_0(instance) & MFI_STATE_MASK; */
2344 			fw_state =
2345 			    instance->func_ptr->read_fw_status_reg(instance) &
2346 			    MFI_STATE_MASK;
2347 
2348 			if (fw_state == cur_state) {
2349 				delay(1 * drv_usectohz(MILLISEC));
2350 			} else {
2351 				break;
2352 			}
2353 		}
2354 
2355 		/* return error if fw_state hasn't changed after max_wait */
2356 		if (fw_state == cur_state) {
2357 			con_log(CL_ANN, (CE_NOTE,
2358 			    "FW state hasn't changed in %d secs", max_wait));
2359 			return (ENODEV);
2360 		}
2361 	};
2362 
2363 	fw_ctrl = RD_IB_DOORBELL(instance);
2364 
2365 	con_log(CL_ANN1, (CE_NOTE,
2366 	    "mfi_state_transition_to_ready:FW ctrl = 0x%x", fw_ctrl));
2367 
2368 	/*
2369 	 * Write 0xF to the doorbell register to do the following.
2370 	 * - Abort all outstanding commands (bit 0).
2371 	 * - Transition from OPERATIONAL to READY state (bit 1).
2372 	 * - Discard (possible) low MFA posted in 64-bit mode (bit-2).
2373 	 * - Set to release FW to continue running (i.e. BIOS handshake
2374 	 *   (bit 3).
2375 	 */
2376 	WR_IB_DOORBELL(0xF, instance);
2377 
2378 	if (mrsas_check_acc_handle(instance->regmap_handle) != DDI_SUCCESS) {
2379 		return (ENODEV);
2380 	}
2381 	return (DDI_SUCCESS);
2382 }
2383 
2384 /*
2385  * get_seq_num
2386  */
2387 static int
2388 get_seq_num(struct mrsas_instance *instance,
2389     struct mrsas_evt_log_info *eli)
2390 {
2391 	int	ret = DDI_SUCCESS;
2392 
2393 	dma_obj_t			dcmd_dma_obj;
2394 	struct mrsas_cmd		*cmd;
2395 	struct mrsas_dcmd_frame		*dcmd;
2396 	struct mrsas_evt_log_info *eli_tmp;
2397 	cmd = get_mfi_pkt(instance);
2398 
2399 	if (!cmd) {
2400 		cmn_err(CE_WARN, "mr_sas: failed to get a cmd");
2401 		DTRACE_PROBE2(seq_num_mfi_err, uint16_t,
2402 		    instance->fw_outstanding, uint16_t, instance->max_fw_cmds);
2403 		return (ENOMEM);
2404 	}
2405 	/* Clear the frame buffer and assign back the context id */
2406 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
2407 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
2408 	    cmd->index);
2409 
2410 	dcmd	= &cmd->frame->dcmd;
2411 
2412 	/* allocate the data transfer buffer */
2413 	dcmd_dma_obj.size = sizeof (struct mrsas_evt_log_info);
2414 	dcmd_dma_obj.dma_attr = mrsas_generic_dma_attr;
2415 	dcmd_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
2416 	dcmd_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
2417 	dcmd_dma_obj.dma_attr.dma_attr_sgllen = 1;
2418 	dcmd_dma_obj.dma_attr.dma_attr_align = 1;
2419 
2420 	if (mrsas_alloc_dma_obj(instance, &dcmd_dma_obj,
2421 	    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
2422 		con_log(CL_ANN, (CE_WARN,
2423 		    "get_seq_num: could not allocate data transfer buffer."));
2424 		return (DDI_FAILURE);
2425 	}
2426 
2427 	(void) memset(dcmd_dma_obj.buffer, 0,
2428 	    sizeof (struct mrsas_evt_log_info));
2429 
2430 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
2431 
2432 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
2433 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status, 0);
2434 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 1);
2435 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
2436 	    MFI_FRAME_DIR_READ);
2437 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
2438 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len,
2439 	    sizeof (struct mrsas_evt_log_info));
2440 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
2441 	    MR_DCMD_CTRL_EVENT_GET_INFO);
2442 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].length,
2443 	    sizeof (struct mrsas_evt_log_info));
2444 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].phys_addr,
2445 	    dcmd_dma_obj.dma_cookie[0].dmac_address);
2446 
2447 	cmd->sync_cmd = MRSAS_TRUE;
2448 	cmd->frame_count = 1;
2449 
2450 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
2451 		cmn_err(CE_WARN, "get_seq_num: "
2452 		    "failed to issue MRSAS_DCMD_CTRL_EVENT_GET_INFO");
2453 		ret = DDI_FAILURE;
2454 	} else {
2455 		eli_tmp = (struct mrsas_evt_log_info *)dcmd_dma_obj.buffer;
2456 		eli->newest_seq_num = ddi_get32(cmd->frame_dma_obj.acc_handle,
2457 		    &eli_tmp->newest_seq_num);
2458 		ret = DDI_SUCCESS;
2459 	}
2460 
2461 	if (mrsas_free_dma_obj(instance, dcmd_dma_obj) != DDI_SUCCESS)
2462 		ret = DDI_FAILURE;
2463 
2464 	if (mrsas_common_check(instance, cmd) != DDI_SUCCESS) {
2465 		ret = DDI_FAILURE;
2466 	}
2467 
2468 	return_mfi_pkt(instance, cmd);
2469 
2470 	return (ret);
2471 }
2472 
2473 /*
2474  * start_mfi_aen
2475  */
2476 static int
2477 start_mfi_aen(struct mrsas_instance *instance)
2478 {
2479 	int	ret = 0;
2480 
2481 	struct mrsas_evt_log_info	eli;
2482 	union mrsas_evt_class_locale	class_locale;
2483 
2484 	/* get the latest sequence number from FW */
2485 	(void) memset(&eli, 0, sizeof (struct mrsas_evt_log_info));
2486 
2487 	if (get_seq_num(instance, &eli)) {
2488 		cmn_err(CE_WARN, "start_mfi_aen: failed to get seq num");
2489 		return (-1);
2490 	}
2491 
2492 	/* register AEN with FW for latest sequence number plus 1 */
2493 	class_locale.members.reserved	= 0;
2494 	class_locale.members.locale	= LE_16(MR_EVT_LOCALE_ALL);
2495 	class_locale.members.class	= MR_EVT_CLASS_INFO;
2496 	class_locale.word	= LE_32(class_locale.word);
2497 	ret = register_mfi_aen(instance, eli.newest_seq_num + 1,
2498 	    class_locale.word);
2499 
2500 	if (ret) {
2501 		cmn_err(CE_WARN, "start_mfi_aen: aen registration failed");
2502 		return (-1);
2503 	}
2504 
2505 	return (ret);
2506 }
2507 
2508 /*
2509  * flush_cache
2510  */
2511 static void
2512 flush_cache(struct mrsas_instance *instance)
2513 {
2514 	struct mrsas_cmd		*cmd = NULL;
2515 	struct mrsas_dcmd_frame		*dcmd;
2516 	uint32_t	max_cmd = instance->max_fw_cmds;
2517 
2518 	cmd = instance->cmd_list[max_cmd];
2519 
2520 	if (cmd == NULL)
2521 		return;
2522 
2523 	dcmd = &cmd->frame->dcmd;
2524 
2525 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
2526 
2527 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
2528 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status, 0x0);
2529 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 0);
2530 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
2531 	    MFI_FRAME_DIR_NONE);
2532 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
2533 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len, 0);
2534 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
2535 	    MR_DCMD_CTRL_CACHE_FLUSH);
2536 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->mbox.b[0],
2537 	    MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE);
2538 
2539 	cmd->frame_count = 1;
2540 
2541 	if (instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
2542 		con_log(CL_ANN1, (CE_WARN,
2543 	    "flush_cache: failed to issue MFI_DCMD_CTRL_CACHE_FLUSH"));
2544 	}
2545 	con_log(CL_DLEVEL1, (CE_NOTE, "done"));
2546 }
2547 
2548 /*
2549  * service_mfi_aen-	Completes an AEN command
2550  * @instance:			Adapter soft state
2551  * @cmd:			Command to be completed
2552  *
2553  */
2554 static void
2555 service_mfi_aen(struct mrsas_instance *instance, struct mrsas_cmd *cmd)
2556 {
2557 	uint32_t	seq_num;
2558 	struct mrsas_evt_detail *evt_detail =
2559 	    (struct mrsas_evt_detail *)instance->mfi_evt_detail_obj.buffer;
2560 	int		rval = 0;
2561 	int		tgt = 0;
2562 	ddi_acc_handle_t		acc_handle;
2563 
2564 	acc_handle = cmd->frame_dma_obj.acc_handle;
2565 
2566 	cmd->cmd_status = ddi_get8(acc_handle, &cmd->frame->io.cmd_status);
2567 
2568 	if (cmd->cmd_status == ENODATA) {
2569 		cmd->cmd_status = 0;
2570 	}
2571 
2572 	/*
2573 	 * log the MFI AEN event to the sysevent queue so that
2574 	 * application will get noticed
2575 	 */
2576 	if (ddi_log_sysevent(instance->dip, DDI_VENDOR_LSI, "LSIMEGA", "SAS",
2577 	    NULL, NULL, DDI_NOSLEEP) != DDI_SUCCESS) {
2578 		int	instance_no = ddi_get_instance(instance->dip);
2579 		con_log(CL_ANN, (CE_WARN,
2580 		    "mr_sas%d: Failed to log AEN event", instance_no));
2581 	}
2582 	/*
2583 	 * Check for any ld devices that has changed state. i.e. online
2584 	 * or offline.
2585 	 */
2586 	con_log(CL_ANN1, (CE_NOTE,
2587 	    "AEN: code = %x class = %x locale = %x args = %x",
2588 	    ddi_get32(acc_handle, &evt_detail->code),
2589 	    evt_detail->cl.members.class,
2590 	    ddi_get16(acc_handle, &evt_detail->cl.members.locale),
2591 	    ddi_get8(acc_handle, &evt_detail->arg_type)));
2592 
2593 	switch (ddi_get32(acc_handle, &evt_detail->code)) {
2594 	case MR_EVT_CFG_CLEARED: {
2595 		for (tgt = 0; tgt < MRDRV_MAX_LD; tgt++) {
2596 			if (instance->mr_ld_list[tgt].dip != NULL) {
2597 				rval = mrsas_service_evt(instance, tgt, 0,
2598 				    MRSAS_EVT_UNCONFIG_TGT, NULL);
2599 				con_log(CL_ANN1, (CE_WARN,
2600 				    "mr_sas: CFG CLEARED AEN rval = %d "
2601 				    "tgt id = %d", rval, tgt));
2602 			}
2603 		}
2604 		break;
2605 	}
2606 
2607 	case MR_EVT_LD_DELETED: {
2608 		rval = mrsas_service_evt(instance,
2609 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id), 0,
2610 		    MRSAS_EVT_UNCONFIG_TGT, NULL);
2611 		con_log(CL_ANN1, (CE_WARN, "mr_sas: LD DELETED AEN rval = %d "
2612 		    "tgt id = %d index = %d", rval,
2613 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id),
2614 		    ddi_get8(acc_handle, &evt_detail->args.ld.ld_index)));
2615 		break;
2616 	} /* End of MR_EVT_LD_DELETED */
2617 
2618 	case MR_EVT_LD_CREATED: {
2619 		rval = mrsas_service_evt(instance,
2620 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id), 0,
2621 		    MRSAS_EVT_CONFIG_TGT, NULL);
2622 		con_log(CL_ANN1, (CE_WARN, "mr_sas: LD CREATED AEN rval = %d "
2623 		    "tgt id = %d index = %d", rval,
2624 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id),
2625 		    ddi_get8(acc_handle, &evt_detail->args.ld.ld_index)));
2626 		break;
2627 	} /* End of MR_EVT_LD_CREATED */
2628 	} /* End of Main Switch */
2629 
2630 	/* get copy of seq_num and class/locale for re-registration */
2631 	seq_num = ddi_get32(acc_handle, &evt_detail->seq_num);
2632 	seq_num++;
2633 	(void) memset(instance->mfi_evt_detail_obj.buffer, 0,
2634 	    sizeof (struct mrsas_evt_detail));
2635 
2636 	ddi_put8(acc_handle, &cmd->frame->dcmd.cmd_status, 0x0);
2637 	ddi_put32(acc_handle, &cmd->frame->dcmd.mbox.w[0], seq_num);
2638 
2639 	instance->aen_seq_num = seq_num;
2640 
2641 	cmd->frame_count = 1;
2642 
2643 	/* Issue the aen registration frame */
2644 	instance->func_ptr->issue_cmd(cmd, instance);
2645 }
2646 
2647 /*
2648  * complete_cmd_in_sync_mode -	Completes an internal command
2649  * @instance:			Adapter soft state
2650  * @cmd:			Command to be completed
2651  *
2652  * The issue_cmd_in_sync_mode() function waits for a command to complete
2653  * after it issues a command. This function wakes up that waiting routine by
2654  * calling wake_up() on the wait queue.
2655  */
2656 static void
2657 complete_cmd_in_sync_mode(struct mrsas_instance *instance,
2658     struct mrsas_cmd *cmd)
2659 {
2660 	cmd->cmd_status = ddi_get8(cmd->frame_dma_obj.acc_handle,
2661 	    &cmd->frame->io.cmd_status);
2662 
2663 	cmd->sync_cmd = MRSAS_FALSE;
2664 
2665 	if (cmd->cmd_status == ENODATA) {
2666 		cmd->cmd_status = 0;
2667 	}
2668 
2669 	cv_broadcast(&instance->int_cmd_cv);
2670 }
2671 
2672 /*
2673  * mrsas_softintr - The Software ISR
2674  * @param arg	: HBA soft state
2675  *
2676  * called from high-level interrupt if hi-level interrupt are not there,
2677  * otherwise triggered as a soft interrupt
2678  */
2679 static uint_t
2680 mrsas_softintr(struct mrsas_instance *instance)
2681 {
2682 	struct scsi_pkt		*pkt;
2683 	struct scsa_cmd		*acmd;
2684 	struct mrsas_cmd	*cmd;
2685 	struct mlist_head	*pos, *next;
2686 	mlist_t			process_list;
2687 	struct mrsas_header	*hdr;
2688 	struct scsi_arq_status	*arqstat;
2689 
2690 	con_log(CL_ANN1, (CE_CONT, "mrsas_softintr called"));
2691 
2692 	ASSERT(instance);
2693 	mutex_enter(&instance->completed_pool_mtx);
2694 
2695 	if (mlist_empty(&instance->completed_pool_list)) {
2696 		mutex_exit(&instance->completed_pool_mtx);
2697 		return (DDI_INTR_CLAIMED);
2698 	}
2699 
2700 	instance->softint_running = 1;
2701 
2702 	INIT_LIST_HEAD(&process_list);
2703 	mlist_splice(&instance->completed_pool_list, &process_list);
2704 	INIT_LIST_HEAD(&instance->completed_pool_list);
2705 
2706 	mutex_exit(&instance->completed_pool_mtx);
2707 
2708 	/* perform all callbacks first, before releasing the SCBs */
2709 	mlist_for_each_safe(pos, next, &process_list) {
2710 		cmd = mlist_entry(pos, struct mrsas_cmd, list);
2711 
2712 		/* syncronize the Cmd frame for the controller */
2713 		(void) ddi_dma_sync(cmd->frame_dma_obj.dma_handle,
2714 		    0, 0, DDI_DMA_SYNC_FORCPU);
2715 
2716 		if (mrsas_check_dma_handle(cmd->frame_dma_obj.dma_handle) !=
2717 		    DDI_SUCCESS) {
2718 			mrsas_fm_ereport(instance, DDI_FM_DEVICE_NO_RESPONSE);
2719 			ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
2720 			return (DDI_INTR_CLAIMED);
2721 		}
2722 
2723 		hdr = &cmd->frame->hdr;
2724 
2725 		/* remove the internal command from the process list */
2726 		mlist_del_init(&cmd->list);
2727 
2728 		switch (ddi_get8(cmd->frame_dma_obj.acc_handle, &hdr->cmd)) {
2729 		case MFI_CMD_OP_PD_SCSI:
2730 		case MFI_CMD_OP_LD_SCSI:
2731 		case MFI_CMD_OP_LD_READ:
2732 		case MFI_CMD_OP_LD_WRITE:
2733 			/*
2734 			 * MFI_CMD_OP_PD_SCSI and MFI_CMD_OP_LD_SCSI
2735 			 * could have been issued either through an
2736 			 * IO path or an IOCTL path. If it was via IOCTL,
2737 			 * we will send it to internal completion.
2738 			 */
2739 			if (cmd->sync_cmd == MRSAS_TRUE) {
2740 				complete_cmd_in_sync_mode(instance, cmd);
2741 				break;
2742 			}
2743 
2744 			/* regular commands */
2745 			acmd =	cmd->cmd;
2746 			pkt =	CMD2PKT(acmd);
2747 
2748 			if (acmd->cmd_flags & CFLAG_DMAVALID) {
2749 				if (acmd->cmd_flags & CFLAG_CONSISTENT) {
2750 					(void) ddi_dma_sync(acmd->cmd_dmahandle,
2751 					    acmd->cmd_dma_offset,
2752 					    acmd->cmd_dma_len,
2753 					    DDI_DMA_SYNC_FORCPU);
2754 				}
2755 			}
2756 
2757 			pkt->pkt_reason		= CMD_CMPLT;
2758 			pkt->pkt_statistics	= 0;
2759 			pkt->pkt_state = STATE_GOT_BUS
2760 			    | STATE_GOT_TARGET | STATE_SENT_CMD
2761 			    | STATE_XFERRED_DATA | STATE_GOT_STATUS;
2762 
2763 			con_log(CL_ANN1, (CE_CONT,
2764 			    "CDB[0] = %x completed for %s: size %lx context %x",
2765 			    pkt->pkt_cdbp[0], ((acmd->islogical) ? "LD" : "PD"),
2766 			    acmd->cmd_dmacount, hdr->context));
2767 			DTRACE_PROBE3(softintr_cdb, uint8_t, pkt->pkt_cdbp[0],
2768 			    uint_t, acmd->cmd_cdblen, ulong_t,
2769 			    acmd->cmd_dmacount);
2770 
2771 			if (pkt->pkt_cdbp[0] == SCMD_INQUIRY) {
2772 				struct scsi_inquiry	*inq;
2773 
2774 				if (acmd->cmd_dmacount != 0) {
2775 					bp_mapin(acmd->cmd_buf);
2776 					inq = (struct scsi_inquiry *)
2777 					    acmd->cmd_buf->b_un.b_addr;
2778 
2779 					/* don't expose physical drives to OS */
2780 					if (acmd->islogical &&
2781 					    (hdr->cmd_status == MFI_STAT_OK)) {
2782 						display_scsi_inquiry(
2783 						    (caddr_t)inq);
2784 					} else if ((hdr->cmd_status ==
2785 					    MFI_STAT_OK) && inq->inq_dtype ==
2786 					    DTYPE_DIRECT) {
2787 
2788 						display_scsi_inquiry(
2789 						    (caddr_t)inq);
2790 
2791 						/* for physical disk */
2792 						hdr->cmd_status =
2793 						    MFI_STAT_DEVICE_NOT_FOUND;
2794 					}
2795 				}
2796 			}
2797 
2798 			DTRACE_PROBE2(softintr_done, uint8_t, hdr->cmd,
2799 			    uint8_t, hdr->cmd_status);
2800 
2801 			switch (hdr->cmd_status) {
2802 			case MFI_STAT_OK:
2803 				pkt->pkt_scbp[0] = STATUS_GOOD;
2804 				break;
2805 			case MFI_STAT_LD_CC_IN_PROGRESS:
2806 			case MFI_STAT_LD_RECON_IN_PROGRESS:
2807 				pkt->pkt_scbp[0] = STATUS_GOOD;
2808 				break;
2809 			case MFI_STAT_LD_INIT_IN_PROGRESS:
2810 				con_log(CL_ANN,
2811 				    (CE_WARN, "Initialization in Progress"));
2812 				pkt->pkt_reason	= CMD_TRAN_ERR;
2813 
2814 				break;
2815 			case MFI_STAT_SCSI_DONE_WITH_ERROR:
2816 				con_log(CL_ANN1, (CE_CONT, "scsi_done error"));
2817 
2818 				pkt->pkt_reason	= CMD_CMPLT;
2819 				((struct scsi_status *)
2820 				    pkt->pkt_scbp)->sts_chk = 1;
2821 
2822 				if (pkt->pkt_cdbp[0] == SCMD_TEST_UNIT_READY) {
2823 
2824 					con_log(CL_ANN,
2825 					    (CE_WARN, "TEST_UNIT_READY fail"));
2826 
2827 				} else {
2828 					pkt->pkt_state |= STATE_ARQ_DONE;
2829 					arqstat = (void *)(pkt->pkt_scbp);
2830 					arqstat->sts_rqpkt_reason = CMD_CMPLT;
2831 					arqstat->sts_rqpkt_resid = 0;
2832 					arqstat->sts_rqpkt_state |=
2833 					    STATE_GOT_BUS | STATE_GOT_TARGET
2834 					    | STATE_SENT_CMD
2835 					    | STATE_XFERRED_DATA;
2836 					*(uint8_t *)&arqstat->sts_rqpkt_status =
2837 					    STATUS_GOOD;
2838 					ddi_rep_get8(
2839 					    cmd->frame_dma_obj.acc_handle,
2840 					    (uint8_t *)
2841 					    &(arqstat->sts_sensedata),
2842 					    cmd->sense,
2843 					    acmd->cmd_scblen -
2844 					    offsetof(struct scsi_arq_status,
2845 					    sts_sensedata), DDI_DEV_AUTOINCR);
2846 			}
2847 				break;
2848 			case MFI_STAT_LD_OFFLINE:
2849 			case MFI_STAT_DEVICE_NOT_FOUND:
2850 				con_log(CL_ANN1, (CE_CONT,
2851 				    "device not found error"));
2852 				pkt->pkt_reason	= CMD_DEV_GONE;
2853 				pkt->pkt_statistics  = STAT_DISCON;
2854 				break;
2855 			case MFI_STAT_LD_LBA_OUT_OF_RANGE:
2856 				pkt->pkt_state |= STATE_ARQ_DONE;
2857 				pkt->pkt_reason	= CMD_CMPLT;
2858 				((struct scsi_status *)
2859 				    pkt->pkt_scbp)->sts_chk = 1;
2860 
2861 				arqstat = (void *)(pkt->pkt_scbp);
2862 				arqstat->sts_rqpkt_reason = CMD_CMPLT;
2863 				arqstat->sts_rqpkt_resid = 0;
2864 				arqstat->sts_rqpkt_state |= STATE_GOT_BUS
2865 				    | STATE_GOT_TARGET | STATE_SENT_CMD
2866 				    | STATE_XFERRED_DATA;
2867 				*(uint8_t *)&arqstat->sts_rqpkt_status =
2868 				    STATUS_GOOD;
2869 
2870 				arqstat->sts_sensedata.es_valid = 1;
2871 				arqstat->sts_sensedata.es_key =
2872 				    KEY_ILLEGAL_REQUEST;
2873 				arqstat->sts_sensedata.es_class =
2874 				    CLASS_EXTENDED_SENSE;
2875 
2876 				/*
2877 				 * LOGICAL BLOCK ADDRESS OUT OF RANGE:
2878 				 * ASC: 0x21h; ASCQ: 0x00h;
2879 				 */
2880 				arqstat->sts_sensedata.es_add_code = 0x21;
2881 				arqstat->sts_sensedata.es_qual_code = 0x00;
2882 
2883 				break;
2884 
2885 			default:
2886 				con_log(CL_ANN, (CE_CONT, "Unknown status!"));
2887 				pkt->pkt_reason	= CMD_TRAN_ERR;
2888 
2889 				break;
2890 			}
2891 
2892 			atomic_add_16(&instance->fw_outstanding, (-1));
2893 
2894 			(void) mrsas_common_check(instance, cmd);
2895 
2896 			if (acmd->cmd_dmahandle) {
2897 				if (mrsas_check_dma_handle(
2898 				    acmd->cmd_dmahandle) != DDI_SUCCESS) {
2899 					ddi_fm_service_impact(instance->dip,
2900 					    DDI_SERVICE_UNAFFECTED);
2901 					pkt->pkt_reason = CMD_TRAN_ERR;
2902 					pkt->pkt_statistics = 0;
2903 				}
2904 			}
2905 
2906 			return_mfi_pkt(instance, cmd);
2907 
2908 			/* Call the callback routine */
2909 			if (((pkt->pkt_flags & FLAG_NOINTR) == 0) &&
2910 			    pkt->pkt_comp) {
2911 				(*pkt->pkt_comp)(pkt);
2912 			}
2913 
2914 			break;
2915 		case MFI_CMD_OP_SMP:
2916 		case MFI_CMD_OP_STP:
2917 			complete_cmd_in_sync_mode(instance, cmd);
2918 			break;
2919 		case MFI_CMD_OP_DCMD:
2920 			/* see if got an event notification */
2921 			if (ddi_get32(cmd->frame_dma_obj.acc_handle,
2922 			    &cmd->frame->dcmd.opcode) ==
2923 			    MR_DCMD_CTRL_EVENT_WAIT) {
2924 				if ((instance->aen_cmd == cmd) &&
2925 				    (instance->aen_cmd->abort_aen)) {
2926 					con_log(CL_ANN, (CE_WARN,
2927 					    "mrsas_softintr: "
2928 					    "aborted_aen returned"));
2929 				} else {
2930 					atomic_add_16(&instance->fw_outstanding,
2931 					    (-1));
2932 					service_mfi_aen(instance, cmd);
2933 				}
2934 			} else {
2935 				complete_cmd_in_sync_mode(instance, cmd);
2936 			}
2937 
2938 			break;
2939 		case MFI_CMD_OP_ABORT:
2940 			con_log(CL_ANN, (CE_WARN, "MFI_CMD_OP_ABORT complete"));
2941 			/*
2942 			 * MFI_CMD_OP_ABORT successfully completed
2943 			 * in the synchronous mode
2944 			 */
2945 			complete_cmd_in_sync_mode(instance, cmd);
2946 			break;
2947 		default:
2948 			mrsas_fm_ereport(instance, DDI_FM_DEVICE_NO_RESPONSE);
2949 			ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
2950 
2951 			if (cmd->pkt != NULL) {
2952 				pkt = cmd->pkt;
2953 				if (((pkt->pkt_flags & FLAG_NOINTR) == 0) &&
2954 				    pkt->pkt_comp) {
2955 					(*pkt->pkt_comp)(pkt);
2956 				}
2957 			}
2958 			con_log(CL_ANN, (CE_WARN, "Cmd type unknown !"));
2959 			break;
2960 		}
2961 	}
2962 
2963 	instance->softint_running = 0;
2964 
2965 	return (DDI_INTR_CLAIMED);
2966 }
2967 
2968 /*
2969  * mrsas_alloc_dma_obj
2970  *
2971  * Allocate the memory and other resources for an dma object.
2972  */
2973 static int
2974 mrsas_alloc_dma_obj(struct mrsas_instance *instance, dma_obj_t *obj,
2975     uchar_t endian_flags)
2976 {
2977 	int	i;
2978 	size_t	alen = 0;
2979 	uint_t	cookie_cnt;
2980 	struct ddi_device_acc_attr tmp_endian_attr;
2981 
2982 	tmp_endian_attr = endian_attr;
2983 	tmp_endian_attr.devacc_attr_endian_flags = endian_flags;
2984 
2985 	i = ddi_dma_alloc_handle(instance->dip, &obj->dma_attr,
2986 	    DDI_DMA_SLEEP, NULL, &obj->dma_handle);
2987 	if (i != DDI_SUCCESS) {
2988 
2989 		switch (i) {
2990 			case DDI_DMA_BADATTR :
2991 				con_log(CL_ANN, (CE_WARN,
2992 				"Failed ddi_dma_alloc_handle- Bad attribute"));
2993 				break;
2994 			case DDI_DMA_NORESOURCES :
2995 				con_log(CL_ANN, (CE_WARN,
2996 				"Failed ddi_dma_alloc_handle- No Resources"));
2997 				break;
2998 			default :
2999 				con_log(CL_ANN, (CE_WARN,
3000 				"Failed ddi_dma_alloc_handle: "
3001 				"unknown status %d", i));
3002 				break;
3003 		}
3004 
3005 		return (-1);
3006 	}
3007 
3008 	if ((ddi_dma_mem_alloc(obj->dma_handle, obj->size, &tmp_endian_attr,
3009 	    DDI_DMA_RDWR | DDI_DMA_STREAMING, DDI_DMA_SLEEP, NULL,
3010 	    &obj->buffer, &alen, &obj->acc_handle) != DDI_SUCCESS) ||
3011 	    alen < obj->size) {
3012 
3013 		ddi_dma_free_handle(&obj->dma_handle);
3014 
3015 		con_log(CL_ANN, (CE_WARN, "Failed : ddi_dma_mem_alloc"));
3016 
3017 		return (-1);
3018 	}
3019 
3020 	if (ddi_dma_addr_bind_handle(obj->dma_handle, NULL, obj->buffer,
3021 	    obj->size, DDI_DMA_RDWR | DDI_DMA_STREAMING, DDI_DMA_SLEEP,
3022 	    NULL, &obj->dma_cookie[0], &cookie_cnt) != DDI_SUCCESS) {
3023 
3024 		ddi_dma_mem_free(&obj->acc_handle);
3025 		ddi_dma_free_handle(&obj->dma_handle);
3026 
3027 		con_log(CL_ANN, (CE_WARN, "Failed : ddi_dma_addr_bind_handle"));
3028 
3029 		return (-1);
3030 	}
3031 
3032 	if (mrsas_check_dma_handle(obj->dma_handle) != DDI_SUCCESS) {
3033 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
3034 		return (-1);
3035 	}
3036 
3037 	if (mrsas_check_acc_handle(obj->acc_handle) != DDI_SUCCESS) {
3038 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
3039 		return (-1);
3040 	}
3041 
3042 	return (cookie_cnt);
3043 }
3044 
3045 /*
3046  * mrsas_free_dma_obj(struct mrsas_instance *, dma_obj_t)
3047  *
3048  * De-allocate the memory and other resources for an dma object, which must
3049  * have been alloated by a previous call to mrsas_alloc_dma_obj()
3050  */
3051 static int
3052 mrsas_free_dma_obj(struct mrsas_instance *instance, dma_obj_t obj)
3053 {
3054 
3055 	if (mrsas_check_dma_handle(obj.dma_handle) != DDI_SUCCESS) {
3056 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
3057 		return (DDI_FAILURE);
3058 	}
3059 
3060 	if (mrsas_check_acc_handle(obj.acc_handle) != DDI_SUCCESS) {
3061 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
3062 		return (DDI_FAILURE);
3063 	}
3064 
3065 	(void) ddi_dma_unbind_handle(obj.dma_handle);
3066 	ddi_dma_mem_free(&obj.acc_handle);
3067 	ddi_dma_free_handle(&obj.dma_handle);
3068 
3069 	return (DDI_SUCCESS);
3070 }
3071 
3072 /*
3073  * mrsas_dma_alloc(instance_t *, struct scsi_pkt *, struct buf *,
3074  * int, int (*)())
3075  *
3076  * Allocate dma resources for a new scsi command
3077  */
3078 static int
3079 mrsas_dma_alloc(struct mrsas_instance *instance, struct scsi_pkt *pkt,
3080     struct buf *bp, int flags, int (*callback)())
3081 {
3082 	int	dma_flags;
3083 	int	(*cb)(caddr_t);
3084 	int	i;
3085 
3086 	ddi_dma_attr_t	tmp_dma_attr = mrsas_generic_dma_attr;
3087 	struct scsa_cmd	*acmd = PKT2CMD(pkt);
3088 
3089 	acmd->cmd_buf = bp;
3090 
3091 	if (bp->b_flags & B_READ) {
3092 		acmd->cmd_flags &= ~CFLAG_DMASEND;
3093 		dma_flags = DDI_DMA_READ;
3094 	} else {
3095 		acmd->cmd_flags |= CFLAG_DMASEND;
3096 		dma_flags = DDI_DMA_WRITE;
3097 	}
3098 
3099 	if (flags & PKT_CONSISTENT) {
3100 		acmd->cmd_flags |= CFLAG_CONSISTENT;
3101 		dma_flags |= DDI_DMA_CONSISTENT;
3102 	}
3103 
3104 	if (flags & PKT_DMA_PARTIAL) {
3105 		dma_flags |= DDI_DMA_PARTIAL;
3106 	}
3107 
3108 	dma_flags |= DDI_DMA_REDZONE;
3109 
3110 	cb = (callback == NULL_FUNC) ? DDI_DMA_DONTWAIT : DDI_DMA_SLEEP;
3111 
3112 	tmp_dma_attr.dma_attr_sgllen = instance->max_num_sge;
3113 	tmp_dma_attr.dma_attr_addr_hi = 0xffffffffffffffffull;
3114 
3115 	if ((i = ddi_dma_alloc_handle(instance->dip, &tmp_dma_attr,
3116 	    cb, 0, &acmd->cmd_dmahandle)) != DDI_SUCCESS) {
3117 		switch (i) {
3118 		case DDI_DMA_BADATTR:
3119 			bioerror(bp, EFAULT);
3120 			return (DDI_FAILURE);
3121 
3122 		case DDI_DMA_NORESOURCES:
3123 			bioerror(bp, 0);
3124 			return (DDI_FAILURE);
3125 
3126 		default:
3127 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_alloc_handle: "
3128 			    "impossible result (0x%x)", i));
3129 			bioerror(bp, EFAULT);
3130 			return (DDI_FAILURE);
3131 		}
3132 	}
3133 
3134 	i = ddi_dma_buf_bind_handle(acmd->cmd_dmahandle, bp, dma_flags,
3135 	    cb, 0, &acmd->cmd_dmacookies[0], &acmd->cmd_ncookies);
3136 
3137 	switch (i) {
3138 	case DDI_DMA_PARTIAL_MAP:
3139 		if ((dma_flags & DDI_DMA_PARTIAL) == 0) {
3140 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_buf_bind_handle: "
3141 			    "DDI_DMA_PARTIAL_MAP impossible"));
3142 			goto no_dma_cookies;
3143 		}
3144 
3145 		if (ddi_dma_numwin(acmd->cmd_dmahandle, &acmd->cmd_nwin) ==
3146 		    DDI_FAILURE) {
3147 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_numwin failed"));
3148 			goto no_dma_cookies;
3149 		}
3150 
3151 		if (ddi_dma_getwin(acmd->cmd_dmahandle, acmd->cmd_curwin,
3152 		    &acmd->cmd_dma_offset, &acmd->cmd_dma_len,
3153 		    &acmd->cmd_dmacookies[0], &acmd->cmd_ncookies) ==
3154 		    DDI_FAILURE) {
3155 
3156 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_getwin failed"));
3157 			goto no_dma_cookies;
3158 		}
3159 
3160 		goto get_dma_cookies;
3161 	case DDI_DMA_MAPPED:
3162 		acmd->cmd_nwin = 1;
3163 		acmd->cmd_dma_len = 0;
3164 		acmd->cmd_dma_offset = 0;
3165 
3166 get_dma_cookies:
3167 		i = 0;
3168 		acmd->cmd_dmacount = 0;
3169 		for (;;) {
3170 			acmd->cmd_dmacount +=
3171 			    acmd->cmd_dmacookies[i++].dmac_size;
3172 
3173 			if (i == instance->max_num_sge ||
3174 			    i == acmd->cmd_ncookies)
3175 				break;
3176 
3177 			ddi_dma_nextcookie(acmd->cmd_dmahandle,
3178 			    &acmd->cmd_dmacookies[i]);
3179 		}
3180 
3181 		acmd->cmd_cookie = i;
3182 		acmd->cmd_cookiecnt = i;
3183 
3184 		acmd->cmd_flags |= CFLAG_DMAVALID;
3185 
3186 		if (bp->b_bcount >= acmd->cmd_dmacount) {
3187 			pkt->pkt_resid = bp->b_bcount - acmd->cmd_dmacount;
3188 		} else {
3189 			pkt->pkt_resid = 0;
3190 		}
3191 
3192 		return (DDI_SUCCESS);
3193 	case DDI_DMA_NORESOURCES:
3194 		bioerror(bp, 0);
3195 		break;
3196 	case DDI_DMA_NOMAPPING:
3197 		bioerror(bp, EFAULT);
3198 		break;
3199 	case DDI_DMA_TOOBIG:
3200 		bioerror(bp, EINVAL);
3201 		break;
3202 	case DDI_DMA_INUSE:
3203 		con_log(CL_ANN, (CE_PANIC, "ddi_dma_buf_bind_handle:"
3204 		    " DDI_DMA_INUSE impossible"));
3205 		break;
3206 	default:
3207 		con_log(CL_ANN, (CE_PANIC, "ddi_dma_buf_bind_handle: "
3208 		    "impossible result (0x%x)", i));
3209 		break;
3210 	}
3211 
3212 no_dma_cookies:
3213 	ddi_dma_free_handle(&acmd->cmd_dmahandle);
3214 	acmd->cmd_dmahandle = NULL;
3215 	acmd->cmd_flags &= ~CFLAG_DMAVALID;
3216 	return (DDI_FAILURE);
3217 }
3218 
3219 /*
3220  * mrsas_dma_move(struct mrsas_instance *, struct scsi_pkt *, struct buf *)
3221  *
3222  * move dma resources to next dma window
3223  *
3224  */
3225 static int
3226 mrsas_dma_move(struct mrsas_instance *instance, struct scsi_pkt *pkt,
3227     struct buf *bp)
3228 {
3229 	int	i = 0;
3230 
3231 	struct scsa_cmd	*acmd = PKT2CMD(pkt);
3232 
3233 	/*
3234 	 * If there are no more cookies remaining in this window,
3235 	 * must move to the next window first.
3236 	 */
3237 	if (acmd->cmd_cookie == acmd->cmd_ncookies) {
3238 		if (acmd->cmd_curwin == acmd->cmd_nwin && acmd->cmd_nwin == 1) {
3239 			return (DDI_SUCCESS);
3240 		}
3241 
3242 		/* at last window, cannot move */
3243 		if (++acmd->cmd_curwin >= acmd->cmd_nwin) {
3244 			return (DDI_FAILURE);
3245 		}
3246 
3247 		if (ddi_dma_getwin(acmd->cmd_dmahandle, acmd->cmd_curwin,
3248 		    &acmd->cmd_dma_offset, &acmd->cmd_dma_len,
3249 		    &acmd->cmd_dmacookies[0], &acmd->cmd_ncookies) ==
3250 		    DDI_FAILURE) {
3251 			return (DDI_FAILURE);
3252 		}
3253 
3254 		acmd->cmd_cookie = 0;
3255 	} else {
3256 		/* still more cookies in this window - get the next one */
3257 		ddi_dma_nextcookie(acmd->cmd_dmahandle,
3258 		    &acmd->cmd_dmacookies[0]);
3259 	}
3260 
3261 	/* get remaining cookies in this window, up to our maximum */
3262 	for (;;) {
3263 		acmd->cmd_dmacount += acmd->cmd_dmacookies[i++].dmac_size;
3264 		acmd->cmd_cookie++;
3265 
3266 		if (i == instance->max_num_sge ||
3267 		    acmd->cmd_cookie == acmd->cmd_ncookies) {
3268 			break;
3269 		}
3270 
3271 		ddi_dma_nextcookie(acmd->cmd_dmahandle,
3272 		    &acmd->cmd_dmacookies[i]);
3273 	}
3274 
3275 	acmd->cmd_cookiecnt = i;
3276 
3277 	if (bp->b_bcount >= acmd->cmd_dmacount) {
3278 		pkt->pkt_resid = bp->b_bcount - acmd->cmd_dmacount;
3279 	} else {
3280 		pkt->pkt_resid = 0;
3281 	}
3282 
3283 	return (DDI_SUCCESS);
3284 }
3285 
3286 /*
3287  * build_cmd
3288  */
3289 static struct mrsas_cmd *
3290 build_cmd(struct mrsas_instance *instance, struct scsi_address *ap,
3291     struct scsi_pkt *pkt, uchar_t *cmd_done)
3292 {
3293 	uint16_t	flags = 0;
3294 	uint32_t	i;
3295 	uint32_t 	context;
3296 	uint32_t	sge_bytes;
3297 	ddi_acc_handle_t acc_handle;
3298 	struct mrsas_cmd		*cmd;
3299 	struct mrsas_sge64		*mfi_sgl;
3300 	struct scsa_cmd			*acmd = PKT2CMD(pkt);
3301 	struct mrsas_pthru_frame 	*pthru;
3302 	struct mrsas_io_frame		*ldio;
3303 
3304 	/* find out if this is logical or physical drive command.  */
3305 	acmd->islogical = MRDRV_IS_LOGICAL(ap);
3306 	acmd->device_id = MAP_DEVICE_ID(instance, ap);
3307 	*cmd_done = 0;
3308 
3309 	/* get the command packet */
3310 	if (!(cmd = get_mfi_pkt(instance))) {
3311 		DTRACE_PROBE2(build_cmd_mfi_err, uint16_t,
3312 		    instance->fw_outstanding, uint16_t, instance->max_fw_cmds);
3313 		return (NULL);
3314 	}
3315 
3316 	acc_handle = cmd->frame_dma_obj.acc_handle;
3317 
3318 	/* Clear the frame buffer and assign back the context id */
3319 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
3320 	ddi_put32(acc_handle, &cmd->frame->hdr.context, cmd->index);
3321 
3322 	cmd->pkt = pkt;
3323 	cmd->cmd = acmd;
3324 	DTRACE_PROBE3(build_cmds, uint8_t, pkt->pkt_cdbp[0],
3325 	    ulong_t, acmd->cmd_dmacount, ulong_t, acmd->cmd_dma_len);
3326 
3327 	/* lets get the command directions */
3328 	if (acmd->cmd_flags & CFLAG_DMASEND) {
3329 		flags = MFI_FRAME_DIR_WRITE;
3330 
3331 		if (acmd->cmd_flags & CFLAG_CONSISTENT) {
3332 			(void) ddi_dma_sync(acmd->cmd_dmahandle,
3333 			    acmd->cmd_dma_offset, acmd->cmd_dma_len,
3334 			    DDI_DMA_SYNC_FORDEV);
3335 		}
3336 	} else if (acmd->cmd_flags & ~CFLAG_DMASEND) {
3337 		flags = MFI_FRAME_DIR_READ;
3338 
3339 		if (acmd->cmd_flags & CFLAG_CONSISTENT) {
3340 			(void) ddi_dma_sync(acmd->cmd_dmahandle,
3341 			    acmd->cmd_dma_offset, acmd->cmd_dma_len,
3342 			    DDI_DMA_SYNC_FORCPU);
3343 		}
3344 	} else {
3345 		flags = MFI_FRAME_DIR_NONE;
3346 	}
3347 
3348 	flags |= MFI_FRAME_SGL64;
3349 
3350 	switch (pkt->pkt_cdbp[0]) {
3351 
3352 	/*
3353 	 * case SCMD_SYNCHRONIZE_CACHE:
3354 	 * 	flush_cache(instance);
3355 	 *	return_mfi_pkt(instance, cmd);
3356 	 *	*cmd_done = 1;
3357 	 *
3358 	 *	return (NULL);
3359 	 */
3360 
3361 	case SCMD_READ:
3362 	case SCMD_WRITE:
3363 	case SCMD_READ_G1:
3364 	case SCMD_WRITE_G1:
3365 		if (acmd->islogical) {
3366 			ldio = (struct mrsas_io_frame *)cmd->frame;
3367 
3368 			/*
3369 			 * preare the Logical IO frame:
3370 			 * 2nd bit is zero for all read cmds
3371 			 */
3372 			ddi_put8(acc_handle, &ldio->cmd,
3373 			    (pkt->pkt_cdbp[0] & 0x02) ? MFI_CMD_OP_LD_WRITE
3374 			    : MFI_CMD_OP_LD_READ);
3375 			ddi_put8(acc_handle, &ldio->cmd_status, 0x0);
3376 			ddi_put8(acc_handle, &ldio->scsi_status, 0x0);
3377 			ddi_put8(acc_handle, &ldio->target_id, acmd->device_id);
3378 			ddi_put16(acc_handle, &ldio->timeout, 0);
3379 			ddi_put8(acc_handle, &ldio->reserved_0, 0);
3380 			ddi_put16(acc_handle, &ldio->pad_0, 0);
3381 			ddi_put16(acc_handle, &ldio->flags, flags);
3382 
3383 			/* Initialize sense Information */
3384 			bzero(cmd->sense, SENSE_LENGTH);
3385 			ddi_put8(acc_handle, &ldio->sense_len, SENSE_LENGTH);
3386 			ddi_put32(acc_handle, &ldio->sense_buf_phys_addr_hi, 0);
3387 			ddi_put32(acc_handle, &ldio->sense_buf_phys_addr_lo,
3388 			    cmd->sense_phys_addr);
3389 			ddi_put32(acc_handle, &ldio->start_lba_hi, 0);
3390 			ddi_put8(acc_handle, &ldio->access_byte,
3391 			    (acmd->cmd_cdblen != 6) ? pkt->pkt_cdbp[1] : 0);
3392 			ddi_put8(acc_handle, &ldio->sge_count,
3393 			    acmd->cmd_cookiecnt);
3394 			mfi_sgl = (struct mrsas_sge64	*)&ldio->sgl;
3395 
3396 			context = ddi_get32(acc_handle, &ldio->context);
3397 
3398 			if (acmd->cmd_cdblen == CDB_GROUP0) {
3399 				ddi_put32(acc_handle, &ldio->lba_count, (
3400 				    (uint16_t)(pkt->pkt_cdbp[4])));
3401 
3402 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
3403 				    ((uint32_t)(pkt->pkt_cdbp[3])) |
3404 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 8) |
3405 				    ((uint32_t)((pkt->pkt_cdbp[1]) & 0x1F)
3406 				    << 16)));
3407 			} else if (acmd->cmd_cdblen == CDB_GROUP1) {
3408 				ddi_put32(acc_handle, &ldio->lba_count, (
3409 				    ((uint16_t)(pkt->pkt_cdbp[8])) |
3410 				    ((uint16_t)(pkt->pkt_cdbp[7]) << 8)));
3411 
3412 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
3413 				    ((uint32_t)(pkt->pkt_cdbp[5])) |
3414 				    ((uint32_t)(pkt->pkt_cdbp[4]) << 8) |
3415 				    ((uint32_t)(pkt->pkt_cdbp[3]) << 16) |
3416 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 24)));
3417 			} else if (acmd->cmd_cdblen == CDB_GROUP2) {
3418 				ddi_put32(acc_handle, &ldio->lba_count, (
3419 				    ((uint16_t)(pkt->pkt_cdbp[9])) |
3420 				    ((uint16_t)(pkt->pkt_cdbp[8]) << 8) |
3421 				    ((uint16_t)(pkt->pkt_cdbp[7]) << 16) |
3422 				    ((uint16_t)(pkt->pkt_cdbp[6]) << 24)));
3423 
3424 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
3425 				    ((uint32_t)(pkt->pkt_cdbp[5])) |
3426 				    ((uint32_t)(pkt->pkt_cdbp[4]) << 8) |
3427 				    ((uint32_t)(pkt->pkt_cdbp[3]) << 16) |
3428 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 24)));
3429 			} else if (acmd->cmd_cdblen == CDB_GROUP3) {
3430 				ddi_put32(acc_handle, &ldio->lba_count, (
3431 				    ((uint16_t)(pkt->pkt_cdbp[13])) |
3432 				    ((uint16_t)(pkt->pkt_cdbp[12]) << 8) |
3433 				    ((uint16_t)(pkt->pkt_cdbp[11]) << 16) |
3434 				    ((uint16_t)(pkt->pkt_cdbp[10]) << 24)));
3435 
3436 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
3437 				    ((uint32_t)(pkt->pkt_cdbp[9])) |
3438 				    ((uint32_t)(pkt->pkt_cdbp[8]) << 8) |
3439 				    ((uint32_t)(pkt->pkt_cdbp[7]) << 16) |
3440 				    ((uint32_t)(pkt->pkt_cdbp[6]) << 24)));
3441 
3442 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
3443 				    ((uint32_t)(pkt->pkt_cdbp[5])) |
3444 				    ((uint32_t)(pkt->pkt_cdbp[4]) << 8) |
3445 				    ((uint32_t)(pkt->pkt_cdbp[3]) << 16) |
3446 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 24)));
3447 			}
3448 
3449 			break;
3450 		}
3451 		/* fall through For all non-rd/wr cmds */
3452 	default:
3453 
3454 		switch (pkt->pkt_cdbp[0]) {
3455 		case SCMD_MODE_SENSE:
3456 		case SCMD_MODE_SENSE_G1: {
3457 			union scsi_cdb	*cdbp;
3458 			uint16_t	page_code;
3459 
3460 			cdbp = (void *)pkt->pkt_cdbp;
3461 			page_code = (uint16_t)cdbp->cdb_un.sg.scsi[0];
3462 			switch (page_code) {
3463 			case 0x3:
3464 			case 0x4:
3465 				(void) mrsas_mode_sense_build(pkt);
3466 				return_mfi_pkt(instance, cmd);
3467 				*cmd_done = 1;
3468 				return (NULL);
3469 			}
3470 			break;
3471 		}
3472 		default:
3473 			break;
3474 		}
3475 
3476 		pthru	= (struct mrsas_pthru_frame *)cmd->frame;
3477 
3478 		/* prepare the DCDB frame */
3479 		ddi_put8(acc_handle, &pthru->cmd, (acmd->islogical) ?
3480 		    MFI_CMD_OP_LD_SCSI : MFI_CMD_OP_PD_SCSI);
3481 		ddi_put8(acc_handle, &pthru->cmd_status, 0x0);
3482 		ddi_put8(acc_handle, &pthru->scsi_status, 0x0);
3483 		ddi_put8(acc_handle, &pthru->target_id, acmd->device_id);
3484 		ddi_put8(acc_handle, &pthru->lun, 0);
3485 		ddi_put8(acc_handle, &pthru->cdb_len, acmd->cmd_cdblen);
3486 		ddi_put16(acc_handle, &pthru->timeout, 0);
3487 		ddi_put16(acc_handle, &pthru->flags, flags);
3488 		ddi_put32(acc_handle, &pthru->data_xfer_len,
3489 		    acmd->cmd_dmacount);
3490 		ddi_put8(acc_handle, &pthru->sge_count, acmd->cmd_cookiecnt);
3491 		mfi_sgl			= (struct mrsas_sge64 *)&pthru->sgl;
3492 
3493 		bzero(cmd->sense, SENSE_LENGTH);
3494 		ddi_put8(acc_handle, &pthru->sense_len, SENSE_LENGTH);
3495 		ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_hi, 0);
3496 		ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_lo,
3497 		    cmd->sense_phys_addr);
3498 
3499 		context = ddi_get32(acc_handle, &pthru->context);
3500 		ddi_rep_put8(acc_handle, (uint8_t *)pkt->pkt_cdbp,
3501 		    (uint8_t *)pthru->cdb, acmd->cmd_cdblen, DDI_DEV_AUTOINCR);
3502 
3503 		break;
3504 	}
3505 #ifdef lint
3506 	context = context;
3507 #endif
3508 	/* prepare the scatter-gather list for the firmware */
3509 	for (i = 0; i < acmd->cmd_cookiecnt; i++, mfi_sgl++) {
3510 		ddi_put64(acc_handle, &mfi_sgl->phys_addr,
3511 		    acmd->cmd_dmacookies[i].dmac_laddress);
3512 		ddi_put32(acc_handle, &mfi_sgl->length,
3513 		    acmd->cmd_dmacookies[i].dmac_size);
3514 	}
3515 
3516 	sge_bytes = sizeof (struct mrsas_sge64)*acmd->cmd_cookiecnt;
3517 
3518 	cmd->frame_count = (sge_bytes / MRMFI_FRAME_SIZE) +
3519 	    ((sge_bytes % MRMFI_FRAME_SIZE) ? 1 : 0) + 1;
3520 
3521 	if (cmd->frame_count >= 8) {
3522 		cmd->frame_count = 8;
3523 	}
3524 
3525 	return (cmd);
3526 }
3527 
3528 /*
3529  * issue_mfi_pthru
3530  */
3531 static int
3532 issue_mfi_pthru(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
3533     struct mrsas_cmd *cmd, int mode)
3534 {
3535 	void		*ubuf;
3536 	uint32_t	kphys_addr = 0;
3537 	uint32_t	xferlen = 0;
3538 	uint_t		model;
3539 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
3540 	dma_obj_t			pthru_dma_obj;
3541 	struct mrsas_pthru_frame	*kpthru;
3542 	struct mrsas_pthru_frame	*pthru;
3543 	int i;
3544 	pthru = &cmd->frame->pthru;
3545 	kpthru = (struct mrsas_pthru_frame *)&ioctl->frame[0];
3546 
3547 	model = ddi_model_convert_from(mode & FMODELS);
3548 	if (model == DDI_MODEL_ILP32) {
3549 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_pthru: DDI_MODEL_LP32"));
3550 
3551 		xferlen	= kpthru->sgl.sge32[0].length;
3552 
3553 		ubuf	= (void *)(ulong_t)kpthru->sgl.sge32[0].phys_addr;
3554 	} else {
3555 #ifdef _ILP32
3556 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_pthru: DDI_MODEL_LP32"));
3557 		xferlen	= kpthru->sgl.sge32[0].length;
3558 		ubuf	= (void *)(ulong_t)kpthru->sgl.sge32[0].phys_addr;
3559 #else
3560 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_pthru: DDI_MODEL_LP64"));
3561 		xferlen	= kpthru->sgl.sge64[0].length;
3562 		ubuf	= (void *)(ulong_t)kpthru->sgl.sge64[0].phys_addr;
3563 #endif
3564 	}
3565 
3566 	if (xferlen) {
3567 		/* means IOCTL requires DMA */
3568 		/* allocate the data transfer buffer */
3569 		pthru_dma_obj.size = xferlen;
3570 		pthru_dma_obj.dma_attr = mrsas_generic_dma_attr;
3571 		pthru_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
3572 		pthru_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
3573 		pthru_dma_obj.dma_attr.dma_attr_sgllen = 1;
3574 		pthru_dma_obj.dma_attr.dma_attr_align = 1;
3575 
3576 		/* allocate kernel buffer for DMA */
3577 		if (mrsas_alloc_dma_obj(instance, &pthru_dma_obj,
3578 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
3579 			con_log(CL_ANN, (CE_WARN, "issue_mfi_pthru: "
3580 			    "could not allocate data transfer buffer."));
3581 			return (DDI_FAILURE);
3582 		}
3583 		(void) memset(pthru_dma_obj.buffer, 0, xferlen);
3584 
3585 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
3586 		if (kpthru->flags & MFI_FRAME_DIR_WRITE) {
3587 			for (i = 0; i < xferlen; i++) {
3588 				if (ddi_copyin((uint8_t *)ubuf+i,
3589 				    (uint8_t *)pthru_dma_obj.buffer+i,
3590 				    1, mode)) {
3591 					con_log(CL_ANN, (CE_WARN,
3592 					    "issue_mfi_pthru : "
3593 					    "copy from user space failed"));
3594 					return (DDI_FAILURE);
3595 				}
3596 			}
3597 		}
3598 
3599 		kphys_addr = pthru_dma_obj.dma_cookie[0].dmac_address;
3600 	}
3601 
3602 	ddi_put8(acc_handle, &pthru->cmd, kpthru->cmd);
3603 	ddi_put8(acc_handle, &pthru->sense_len, 0);
3604 	ddi_put8(acc_handle, &pthru->cmd_status, 0);
3605 	ddi_put8(acc_handle, &pthru->scsi_status, 0);
3606 	ddi_put8(acc_handle, &pthru->target_id, kpthru->target_id);
3607 	ddi_put8(acc_handle, &pthru->lun, kpthru->lun);
3608 	ddi_put8(acc_handle, &pthru->cdb_len, kpthru->cdb_len);
3609 	ddi_put8(acc_handle, &pthru->sge_count, kpthru->sge_count);
3610 	ddi_put16(acc_handle, &pthru->timeout, kpthru->timeout);
3611 	ddi_put32(acc_handle, &pthru->data_xfer_len, kpthru->data_xfer_len);
3612 
3613 	ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_hi, 0);
3614 	/* pthru->sense_buf_phys_addr_lo = cmd->sense_phys_addr; */
3615 	ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_lo, 0);
3616 
3617 	ddi_rep_put8(acc_handle, (uint8_t *)kpthru->cdb, (uint8_t *)pthru->cdb,
3618 	    pthru->cdb_len, DDI_DEV_AUTOINCR);
3619 
3620 	ddi_put16(acc_handle, &pthru->flags, kpthru->flags & ~MFI_FRAME_SGL64);
3621 	ddi_put32(acc_handle, &pthru->sgl.sge32[0].length, xferlen);
3622 	ddi_put32(acc_handle, &pthru->sgl.sge32[0].phys_addr, kphys_addr);
3623 
3624 	cmd->sync_cmd = MRSAS_TRUE;
3625 	cmd->frame_count = 1;
3626 
3627 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
3628 		con_log(CL_ANN, (CE_WARN,
3629 		    "issue_mfi_pthru: fw_ioctl failed"));
3630 	} else {
3631 		if (xferlen && kpthru->flags & MFI_FRAME_DIR_READ) {
3632 			for (i = 0; i < xferlen; i++) {
3633 				if (ddi_copyout(
3634 				    (uint8_t *)pthru_dma_obj.buffer+i,
3635 				    (uint8_t *)ubuf+i, 1, mode)) {
3636 					con_log(CL_ANN, (CE_WARN,
3637 					    "issue_mfi_pthru : "
3638 					    "copy to user space failed"));
3639 					return (DDI_FAILURE);
3640 				}
3641 			}
3642 		}
3643 	}
3644 
3645 	kpthru->cmd_status = ddi_get8(acc_handle, &pthru->cmd_status);
3646 	kpthru->scsi_status = ddi_get8(acc_handle, &pthru->scsi_status);
3647 
3648 	con_log(CL_ANN, (CE_NOTE, "issue_mfi_pthru: cmd_status %x, "
3649 	    "scsi_status %x", kpthru->cmd_status, kpthru->scsi_status));
3650 	DTRACE_PROBE3(issue_pthru, uint8_t, kpthru->cmd, uint8_t,
3651 	    kpthru->cmd_status, uint8_t, kpthru->scsi_status);
3652 
3653 	if (xferlen) {
3654 		/* free kernel buffer */
3655 		if (mrsas_free_dma_obj(instance, pthru_dma_obj) != DDI_SUCCESS)
3656 			return (DDI_FAILURE);
3657 	}
3658 
3659 	return (DDI_SUCCESS);
3660 }
3661 
3662 /*
3663  * issue_mfi_dcmd
3664  */
3665 static int
3666 issue_mfi_dcmd(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
3667     struct mrsas_cmd *cmd, int mode)
3668 {
3669 	void		*ubuf;
3670 	uint32_t	kphys_addr = 0;
3671 	uint32_t	xferlen = 0;
3672 	uint32_t	model;
3673 	dma_obj_t	dcmd_dma_obj;
3674 	struct mrsas_dcmd_frame	*kdcmd;
3675 	struct mrsas_dcmd_frame	*dcmd;
3676 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
3677 	int i;
3678 	dcmd = &cmd->frame->dcmd;
3679 	kdcmd = (struct mrsas_dcmd_frame *)&ioctl->frame[0];
3680 
3681 	model = ddi_model_convert_from(mode & FMODELS);
3682 	if (model == DDI_MODEL_ILP32) {
3683 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_dcmd: DDI_MODEL_ILP32"));
3684 
3685 		xferlen	= kdcmd->sgl.sge32[0].length;
3686 
3687 		ubuf	= (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
3688 	} else {
3689 #ifdef _ILP32
3690 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_dcmd: DDI_MODEL_ILP32"));
3691 		xferlen	= kdcmd->sgl.sge32[0].length;
3692 		ubuf	= (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
3693 #else
3694 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_dcmd: DDI_MODEL_LP64"));
3695 		xferlen	= kdcmd->sgl.sge64[0].length;
3696 		ubuf	= (void *)(ulong_t)kdcmd->sgl.sge64[0].phys_addr;
3697 #endif
3698 	}
3699 	if (xferlen) {
3700 		/* means IOCTL requires DMA */
3701 		/* allocate the data transfer buffer */
3702 		dcmd_dma_obj.size = xferlen;
3703 		dcmd_dma_obj.dma_attr = mrsas_generic_dma_attr;
3704 		dcmd_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
3705 		dcmd_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
3706 		dcmd_dma_obj.dma_attr.dma_attr_sgllen = 1;
3707 		dcmd_dma_obj.dma_attr.dma_attr_align = 1;
3708 
3709 		/* allocate kernel buffer for DMA */
3710 		if (mrsas_alloc_dma_obj(instance, &dcmd_dma_obj,
3711 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
3712 			con_log(CL_ANN, (CE_WARN, "issue_mfi_dcmd: "
3713 			    "could not allocate data transfer buffer."));
3714 			return (DDI_FAILURE);
3715 		}
3716 		(void) memset(dcmd_dma_obj.buffer, 0, xferlen);
3717 
3718 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
3719 		if (kdcmd->flags & MFI_FRAME_DIR_WRITE) {
3720 			for (i = 0; i < xferlen; i++) {
3721 				if (ddi_copyin((uint8_t *)ubuf + i,
3722 				    (uint8_t *)dcmd_dma_obj.buffer + i,
3723 				    1, mode)) {
3724 					con_log(CL_ANN, (CE_WARN,
3725 					    "issue_mfi_dcmd : "
3726 					    "copy from user space failed"));
3727 					return (DDI_FAILURE);
3728 				}
3729 			}
3730 		}
3731 
3732 		kphys_addr = dcmd_dma_obj.dma_cookie[0].dmac_address;
3733 	}
3734 
3735 	ddi_put8(acc_handle, &dcmd->cmd, kdcmd->cmd);
3736 	ddi_put8(acc_handle, &dcmd->cmd_status, 0);
3737 	ddi_put8(acc_handle, &dcmd->sge_count, kdcmd->sge_count);
3738 	ddi_put16(acc_handle, &dcmd->timeout, kdcmd->timeout);
3739 	ddi_put32(acc_handle, &dcmd->data_xfer_len, kdcmd->data_xfer_len);
3740 	ddi_put32(acc_handle, &dcmd->opcode, kdcmd->opcode);
3741 
3742 	ddi_rep_put8(acc_handle, (uint8_t *)kdcmd->mbox.b,
3743 	    (uint8_t *)dcmd->mbox.b, DCMD_MBOX_SZ, DDI_DEV_AUTOINCR);
3744 
3745 	ddi_put16(acc_handle, &dcmd->flags, kdcmd->flags & ~MFI_FRAME_SGL64);
3746 	ddi_put32(acc_handle, &dcmd->sgl.sge32[0].length, xferlen);
3747 	ddi_put32(acc_handle, &dcmd->sgl.sge32[0].phys_addr, kphys_addr);
3748 
3749 	cmd->sync_cmd = MRSAS_TRUE;
3750 	cmd->frame_count = 1;
3751 
3752 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
3753 		con_log(CL_ANN, (CE_WARN, "issue_mfi_dcmd: fw_ioctl failed"));
3754 	} else {
3755 		if (xferlen && (kdcmd->flags & MFI_FRAME_DIR_READ)) {
3756 			for (i = 0; i < xferlen; i++) {
3757 				if (ddi_copyout(
3758 				    (uint8_t *)dcmd_dma_obj.buffer + i,
3759 				    (uint8_t *)ubuf + i,
3760 				    1, mode)) {
3761 					con_log(CL_ANN, (CE_WARN,
3762 					    "issue_mfi_dcmd : "
3763 					    "copy to user space failed"));
3764 					return (DDI_FAILURE);
3765 				}
3766 			}
3767 		}
3768 	}
3769 
3770 	kdcmd->cmd_status = ddi_get8(acc_handle, &dcmd->cmd_status);
3771 	DTRACE_PROBE3(issue_dcmd, uint32_t, kdcmd->opcode, uint8_t,
3772 	    kdcmd->cmd, uint8_t, kdcmd->cmd_status);
3773 
3774 	if (xferlen) {
3775 		/* free kernel buffer */
3776 		if (mrsas_free_dma_obj(instance, dcmd_dma_obj) != DDI_SUCCESS)
3777 			return (DDI_FAILURE);
3778 	}
3779 
3780 	return (DDI_SUCCESS);
3781 }
3782 
3783 /*
3784  * issue_mfi_smp
3785  */
3786 static int
3787 issue_mfi_smp(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
3788     struct mrsas_cmd *cmd, int mode)
3789 {
3790 	void		*request_ubuf;
3791 	void		*response_ubuf;
3792 	uint32_t	request_xferlen = 0;
3793 	uint32_t	response_xferlen = 0;
3794 	uint_t		model;
3795 	dma_obj_t			request_dma_obj;
3796 	dma_obj_t			response_dma_obj;
3797 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
3798 	struct mrsas_smp_frame		*ksmp;
3799 	struct mrsas_smp_frame		*smp;
3800 	struct mrsas_sge32		*sge32;
3801 #ifndef _ILP32
3802 	struct mrsas_sge64		*sge64;
3803 #endif
3804 	int i;
3805 	uint64_t			tmp_sas_addr;
3806 
3807 	smp = &cmd->frame->smp;
3808 	ksmp = (struct mrsas_smp_frame *)&ioctl->frame[0];
3809 
3810 	model = ddi_model_convert_from(mode & FMODELS);
3811 	if (model == DDI_MODEL_ILP32) {
3812 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: DDI_MODEL_ILP32"));
3813 
3814 		sge32			= &ksmp->sgl[0].sge32[0];
3815 		response_xferlen	= sge32[0].length;
3816 		request_xferlen		= sge32[1].length;
3817 		con_log(CL_ANN, (CE_NOTE, "issue_mfi_smp: "
3818 		    "response_xferlen = %x, request_xferlen = %x",
3819 		    response_xferlen, request_xferlen));
3820 
3821 		response_ubuf	= (void *)(ulong_t)sge32[0].phys_addr;
3822 		request_ubuf	= (void *)(ulong_t)sge32[1].phys_addr;
3823 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: "
3824 		    "response_ubuf = %p, request_ubuf = %p",
3825 		    response_ubuf, request_ubuf));
3826 	} else {
3827 #ifdef _ILP32
3828 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: DDI_MODEL_ILP32"));
3829 
3830 		sge32			= &ksmp->sgl[0].sge32[0];
3831 		response_xferlen	= sge32[0].length;
3832 		request_xferlen		= sge32[1].length;
3833 		con_log(CL_ANN, (CE_NOTE, "issue_mfi_smp: "
3834 		    "response_xferlen = %x, request_xferlen = %x",
3835 		    response_xferlen, request_xferlen));
3836 
3837 		response_ubuf	= (void *)(ulong_t)sge32[0].phys_addr;
3838 		request_ubuf	= (void *)(ulong_t)sge32[1].phys_addr;
3839 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: "
3840 		    "response_ubuf = %p, request_ubuf = %p",
3841 		    response_ubuf, request_ubuf));
3842 #else
3843 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: DDI_MODEL_LP64"));
3844 
3845 		sge64			= &ksmp->sgl[0].sge64[0];
3846 		response_xferlen	= sge64[0].length;
3847 		request_xferlen		= sge64[1].length;
3848 
3849 		response_ubuf	= (void *)(ulong_t)sge64[0].phys_addr;
3850 		request_ubuf	= (void *)(ulong_t)sge64[1].phys_addr;
3851 #endif
3852 	}
3853 	if (request_xferlen) {
3854 		/* means IOCTL requires DMA */
3855 		/* allocate the data transfer buffer */
3856 		request_dma_obj.size = request_xferlen;
3857 		request_dma_obj.dma_attr = mrsas_generic_dma_attr;
3858 		request_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
3859 		request_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
3860 		request_dma_obj.dma_attr.dma_attr_sgllen = 1;
3861 		request_dma_obj.dma_attr.dma_attr_align = 1;
3862 
3863 		/* allocate kernel buffer for DMA */
3864 		if (mrsas_alloc_dma_obj(instance, &request_dma_obj,
3865 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
3866 			con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
3867 			    "could not allocate data transfer buffer."));
3868 			return (DDI_FAILURE);
3869 		}
3870 		(void) memset(request_dma_obj.buffer, 0, request_xferlen);
3871 
3872 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
3873 		for (i = 0; i < request_xferlen; i++) {
3874 			if (ddi_copyin((uint8_t *)request_ubuf + i,
3875 			    (uint8_t *)request_dma_obj.buffer + i,
3876 			    1, mode)) {
3877 				con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
3878 				    "copy from user space failed"));
3879 				return (DDI_FAILURE);
3880 			}
3881 		}
3882 	}
3883 
3884 	if (response_xferlen) {
3885 		/* means IOCTL requires DMA */
3886 		/* allocate the data transfer buffer */
3887 		response_dma_obj.size = response_xferlen;
3888 		response_dma_obj.dma_attr = mrsas_generic_dma_attr;
3889 		response_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
3890 		response_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
3891 		response_dma_obj.dma_attr.dma_attr_sgllen = 1;
3892 		response_dma_obj.dma_attr.dma_attr_align = 1;
3893 
3894 		/* allocate kernel buffer for DMA */
3895 		if (mrsas_alloc_dma_obj(instance, &response_dma_obj,
3896 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
3897 			con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
3898 			    "could not allocate data transfer buffer."));
3899 			return (DDI_FAILURE);
3900 		}
3901 		(void) memset(response_dma_obj.buffer, 0, response_xferlen);
3902 
3903 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
3904 		for (i = 0; i < response_xferlen; i++) {
3905 			if (ddi_copyin((uint8_t *)response_ubuf + i,
3906 			    (uint8_t *)response_dma_obj.buffer + i,
3907 			    1, mode)) {
3908 				con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
3909 				    "copy from user space failed"));
3910 				return (DDI_FAILURE);
3911 			}
3912 		}
3913 	}
3914 
3915 	ddi_put8(acc_handle, &smp->cmd, ksmp->cmd);
3916 	ddi_put8(acc_handle, &smp->cmd_status, 0);
3917 	ddi_put8(acc_handle, &smp->connection_status, 0);
3918 	ddi_put8(acc_handle, &smp->sge_count, ksmp->sge_count);
3919 	/* smp->context		= ksmp->context; */
3920 	ddi_put16(acc_handle, &smp->timeout, ksmp->timeout);
3921 	ddi_put32(acc_handle, &smp->data_xfer_len, ksmp->data_xfer_len);
3922 
3923 	bcopy((void *)&ksmp->sas_addr, (void *)&tmp_sas_addr,
3924 	    sizeof (uint64_t));
3925 	ddi_put64(acc_handle, &smp->sas_addr, tmp_sas_addr);
3926 
3927 	ddi_put16(acc_handle, &smp->flags, ksmp->flags & ~MFI_FRAME_SGL64);
3928 
3929 	model = ddi_model_convert_from(mode & FMODELS);
3930 	if (model == DDI_MODEL_ILP32) {
3931 		con_log(CL_ANN1, (CE_NOTE,
3932 		    "issue_mfi_smp: DDI_MODEL_ILP32"));
3933 
3934 		sge32 = &smp->sgl[0].sge32[0];
3935 		ddi_put32(acc_handle, &sge32[0].length, response_xferlen);
3936 		ddi_put32(acc_handle, &sge32[0].phys_addr,
3937 		    response_dma_obj.dma_cookie[0].dmac_address);
3938 		ddi_put32(acc_handle, &sge32[1].length, request_xferlen);
3939 		ddi_put32(acc_handle, &sge32[1].phys_addr,
3940 		    request_dma_obj.dma_cookie[0].dmac_address);
3941 	} else {
3942 #ifdef _ILP32
3943 		con_log(CL_ANN1, (CE_NOTE,
3944 		    "issue_mfi_smp: DDI_MODEL_ILP32"));
3945 		sge32 = &smp->sgl[0].sge32[0];
3946 		ddi_put32(acc_handle, &sge32[0].length, response_xferlen);
3947 		ddi_put32(acc_handle, &sge32[0].phys_addr,
3948 		    response_dma_obj.dma_cookie[0].dmac_address);
3949 		ddi_put32(acc_handle, &sge32[1].length, request_xferlen);
3950 		ddi_put32(acc_handle, &sge32[1].phys_addr,
3951 		    request_dma_obj.dma_cookie[0].dmac_address);
3952 #else
3953 		con_log(CL_ANN1, (CE_NOTE,
3954 		    "issue_mfi_smp: DDI_MODEL_LP64"));
3955 		sge64 = &smp->sgl[0].sge64[0];
3956 		ddi_put32(acc_handle, &sge64[0].length, response_xferlen);
3957 		ddi_put64(acc_handle, &sge64[0].phys_addr,
3958 		    response_dma_obj.dma_cookie[0].dmac_address);
3959 		ddi_put32(acc_handle, &sge64[1].length, request_xferlen);
3960 		ddi_put64(acc_handle, &sge64[1].phys_addr,
3961 		    request_dma_obj.dma_cookie[0].dmac_address);
3962 #endif
3963 	}
3964 	con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp : "
3965 	    "smp->response_xferlen = %d, smp->request_xferlen = %d "
3966 	    "smp->data_xfer_len = %d", ddi_get32(acc_handle, &sge32[0].length),
3967 	    ddi_get32(acc_handle, &sge32[1].length),
3968 	    ddi_get32(acc_handle, &smp->data_xfer_len)));
3969 
3970 	cmd->sync_cmd = MRSAS_TRUE;
3971 	cmd->frame_count = 1;
3972 
3973 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
3974 		con_log(CL_ANN, (CE_WARN,
3975 		    "issue_mfi_smp: fw_ioctl failed"));
3976 	} else {
3977 		con_log(CL_ANN1, (CE_NOTE,
3978 		    "issue_mfi_smp: copy to user space"));
3979 
3980 		if (request_xferlen) {
3981 			for (i = 0; i < request_xferlen; i++) {
3982 				if (ddi_copyout(
3983 				    (uint8_t *)request_dma_obj.buffer +
3984 				    i, (uint8_t *)request_ubuf + i,
3985 				    1, mode)) {
3986 					con_log(CL_ANN, (CE_WARN,
3987 					    "issue_mfi_smp : copy to user space"
3988 					    " failed"));
3989 					return (DDI_FAILURE);
3990 				}
3991 			}
3992 		}
3993 
3994 		if (response_xferlen) {
3995 			for (i = 0; i < response_xferlen; i++) {
3996 				if (ddi_copyout(
3997 				    (uint8_t *)response_dma_obj.buffer
3998 				    + i, (uint8_t *)response_ubuf
3999 				    + i, 1, mode)) {
4000 					con_log(CL_ANN, (CE_WARN,
4001 					    "issue_mfi_smp : copy to "
4002 					    "user space failed"));
4003 					return (DDI_FAILURE);
4004 				}
4005 			}
4006 		}
4007 	}
4008 
4009 	ksmp->cmd_status = ddi_get8(acc_handle, &smp->cmd_status);
4010 	con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: smp->cmd_status = %d",
4011 	    ddi_get8(acc_handle, &smp->cmd_status)));
4012 	DTRACE_PROBE2(issue_smp, uint8_t, ksmp->cmd, uint8_t, ksmp->cmd_status);
4013 
4014 	if (request_xferlen) {
4015 		/* free kernel buffer */
4016 		if (mrsas_free_dma_obj(instance, request_dma_obj) !=
4017 		    DDI_SUCCESS)
4018 			return (DDI_FAILURE);
4019 	}
4020 
4021 	if (response_xferlen) {
4022 		/* free kernel buffer */
4023 		if (mrsas_free_dma_obj(instance, response_dma_obj) !=
4024 		    DDI_SUCCESS)
4025 			return (DDI_FAILURE);
4026 	}
4027 
4028 	return (DDI_SUCCESS);
4029 }
4030 
4031 /*
4032  * issue_mfi_stp
4033  */
4034 static int
4035 issue_mfi_stp(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
4036     struct mrsas_cmd *cmd, int mode)
4037 {
4038 	void		*fis_ubuf;
4039 	void		*data_ubuf;
4040 	uint32_t	fis_xferlen = 0;
4041 	uint32_t	data_xferlen = 0;
4042 	uint_t		model;
4043 	dma_obj_t	fis_dma_obj;
4044 	dma_obj_t	data_dma_obj;
4045 	struct mrsas_stp_frame	*kstp;
4046 	struct mrsas_stp_frame	*stp;
4047 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
4048 	int i;
4049 
4050 	stp = &cmd->frame->stp;
4051 	kstp = (struct mrsas_stp_frame *)&ioctl->frame[0];
4052 
4053 	model = ddi_model_convert_from(mode & FMODELS);
4054 	if (model == DDI_MODEL_ILP32) {
4055 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_stp: DDI_MODEL_ILP32"));
4056 
4057 		fis_xferlen	= kstp->sgl.sge32[0].length;
4058 		data_xferlen	= kstp->sgl.sge32[1].length;
4059 
4060 		fis_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[0].phys_addr;
4061 		data_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[1].phys_addr;
4062 	}
4063 	else
4064 	{
4065 #ifdef _ILP32
4066 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_stp: DDI_MODEL_ILP32"));
4067 
4068 		fis_xferlen	= kstp->sgl.sge32[0].length;
4069 		data_xferlen	= kstp->sgl.sge32[1].length;
4070 
4071 		fis_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[0].phys_addr;
4072 		data_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[1].phys_addr;
4073 #else
4074 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_stp: DDI_MODEL_LP64"));
4075 
4076 		fis_xferlen	= kstp->sgl.sge64[0].length;
4077 		data_xferlen	= kstp->sgl.sge64[1].length;
4078 
4079 		fis_ubuf	= (void *)(ulong_t)kstp->sgl.sge64[0].phys_addr;
4080 		data_ubuf	= (void *)(ulong_t)kstp->sgl.sge64[1].phys_addr;
4081 #endif
4082 	}
4083 
4084 
4085 	if (fis_xferlen) {
4086 		con_log(CL_ANN, (CE_NOTE, "issue_mfi_stp: "
4087 		    "fis_ubuf = %p fis_xferlen = %x", fis_ubuf, fis_xferlen));
4088 
4089 		/* means IOCTL requires DMA */
4090 		/* allocate the data transfer buffer */
4091 		fis_dma_obj.size = fis_xferlen;
4092 		fis_dma_obj.dma_attr = mrsas_generic_dma_attr;
4093 		fis_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
4094 		fis_dma_obj.dma_attr.dma_attr_count_max	= 0xFFFFFFFFU;
4095 		fis_dma_obj.dma_attr.dma_attr_sgllen = 1;
4096 		fis_dma_obj.dma_attr.dma_attr_align = 1;
4097 
4098 		/* allocate kernel buffer for DMA */
4099 		if (mrsas_alloc_dma_obj(instance, &fis_dma_obj,
4100 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
4101 			con_log(CL_ANN, (CE_WARN, "issue_mfi_stp : "
4102 			    "could not allocate data transfer buffer."));
4103 			return (DDI_FAILURE);
4104 		}
4105 		(void) memset(fis_dma_obj.buffer, 0, fis_xferlen);
4106 
4107 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
4108 		for (i = 0; i < fis_xferlen; i++) {
4109 			if (ddi_copyin((uint8_t *)fis_ubuf + i,
4110 			    (uint8_t *)fis_dma_obj.buffer + i, 1, mode)) {
4111 				con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: "
4112 				    "copy from user space failed"));
4113 				return (DDI_FAILURE);
4114 			}
4115 		}
4116 	}
4117 
4118 	if (data_xferlen) {
4119 		con_log(CL_ANN, (CE_NOTE, "issue_mfi_stp: data_ubuf = %p "
4120 		    "data_xferlen = %x", data_ubuf, data_xferlen));
4121 
4122 		/* means IOCTL requires DMA */
4123 		/* allocate the data transfer buffer */
4124 		data_dma_obj.size = data_xferlen;
4125 		data_dma_obj.dma_attr = mrsas_generic_dma_attr;
4126 		data_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
4127 		data_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
4128 		data_dma_obj.dma_attr.dma_attr_sgllen = 1;
4129 		data_dma_obj.dma_attr.dma_attr_align = 1;
4130 
4131 /* allocate kernel buffer for DMA */
4132 		if (mrsas_alloc_dma_obj(instance, &data_dma_obj,
4133 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
4134 			con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: "
4135 			    "could not allocate data transfer buffer."));
4136 			return (DDI_FAILURE);
4137 		}
4138 		(void) memset(data_dma_obj.buffer, 0, data_xferlen);
4139 
4140 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
4141 		for (i = 0; i < data_xferlen; i++) {
4142 			if (ddi_copyin((uint8_t *)data_ubuf + i,
4143 			    (uint8_t *)data_dma_obj.buffer + i, 1, mode)) {
4144 				con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: "
4145 				    "copy from user space failed"));
4146 				return (DDI_FAILURE);
4147 			}
4148 		}
4149 	}
4150 
4151 	ddi_put8(acc_handle, &stp->cmd, kstp->cmd);
4152 	ddi_put8(acc_handle, &stp->cmd_status, 0);
4153 	ddi_put8(acc_handle, &stp->connection_status, 0);
4154 	ddi_put8(acc_handle, &stp->target_id, kstp->target_id);
4155 	ddi_put8(acc_handle, &stp->sge_count, kstp->sge_count);
4156 
4157 	ddi_put16(acc_handle, &stp->timeout, kstp->timeout);
4158 	ddi_put32(acc_handle, &stp->data_xfer_len, kstp->data_xfer_len);
4159 
4160 	ddi_rep_put8(acc_handle, (uint8_t *)kstp->fis, (uint8_t *)stp->fis, 10,
4161 	    DDI_DEV_AUTOINCR);
4162 
4163 	ddi_put16(acc_handle, &stp->flags, kstp->flags & ~MFI_FRAME_SGL64);
4164 	ddi_put32(acc_handle, &stp->stp_flags, kstp->stp_flags);
4165 	ddi_put32(acc_handle, &stp->sgl.sge32[0].length, fis_xferlen);
4166 	ddi_put32(acc_handle, &stp->sgl.sge32[0].phys_addr,
4167 	    fis_dma_obj.dma_cookie[0].dmac_address);
4168 	ddi_put32(acc_handle, &stp->sgl.sge32[1].length, data_xferlen);
4169 	ddi_put32(acc_handle, &stp->sgl.sge32[1].phys_addr,
4170 	    data_dma_obj.dma_cookie[0].dmac_address);
4171 
4172 	cmd->sync_cmd = MRSAS_TRUE;
4173 	cmd->frame_count = 1;
4174 
4175 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
4176 		con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: fw_ioctl failed"));
4177 	} else {
4178 
4179 		if (fis_xferlen) {
4180 			for (i = 0; i < fis_xferlen; i++) {
4181 				if (ddi_copyout(
4182 				    (uint8_t *)fis_dma_obj.buffer + i,
4183 				    (uint8_t *)fis_ubuf + i, 1, mode)) {
4184 					con_log(CL_ANN, (CE_WARN,
4185 					    "issue_mfi_stp : copy to "
4186 					    "user space failed"));
4187 					return (DDI_FAILURE);
4188 				}
4189 			}
4190 		}
4191 	}
4192 	if (data_xferlen) {
4193 		for (i = 0; i < data_xferlen; i++) {
4194 			if (ddi_copyout(
4195 			    (uint8_t *)data_dma_obj.buffer + i,
4196 			    (uint8_t *)data_ubuf + i, 1, mode)) {
4197 				con_log(CL_ANN, (CE_WARN,
4198 				    "issue_mfi_stp : copy to"
4199 				    " user space failed"));
4200 				return (DDI_FAILURE);
4201 			}
4202 		}
4203 	}
4204 
4205 	kstp->cmd_status = ddi_get8(acc_handle, &stp->cmd_status);
4206 	DTRACE_PROBE2(issue_stp, uint8_t, kstp->cmd, uint8_t, kstp->cmd_status);
4207 
4208 	if (fis_xferlen) {
4209 		/* free kernel buffer */
4210 		if (mrsas_free_dma_obj(instance, fis_dma_obj) != DDI_SUCCESS)
4211 			return (DDI_FAILURE);
4212 	}
4213 
4214 	if (data_xferlen) {
4215 		/* free kernel buffer */
4216 		if (mrsas_free_dma_obj(instance, data_dma_obj) != DDI_SUCCESS)
4217 			return (DDI_FAILURE);
4218 	}
4219 
4220 	return (DDI_SUCCESS);
4221 }
4222 
4223 /*
4224  * fill_up_drv_ver
4225  */
4226 static void
4227 fill_up_drv_ver(struct mrsas_drv_ver *dv)
4228 {
4229 	(void) memset(dv, 0, sizeof (struct mrsas_drv_ver));
4230 
4231 	(void) memcpy(dv->signature, "$LSI LOGIC$", strlen("$LSI LOGIC$"));
4232 	(void) memcpy(dv->os_name, "Solaris", strlen("Solaris"));
4233 	(void) memcpy(dv->drv_name, "mr_sas", strlen("mr_sas"));
4234 	(void) memcpy(dv->drv_ver, MRSAS_VERSION, strlen(MRSAS_VERSION));
4235 	(void) memcpy(dv->drv_rel_date, MRSAS_RELDATE,
4236 	    strlen(MRSAS_RELDATE));
4237 }
4238 
4239 /*
4240  * handle_drv_ioctl
4241  */
4242 static int
4243 handle_drv_ioctl(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
4244     int mode)
4245 {
4246 	int	i;
4247 	int	rval = DDI_SUCCESS;
4248 	int	*props = NULL;
4249 	void	*ubuf;
4250 
4251 	uint8_t		*pci_conf_buf;
4252 	uint32_t	xferlen;
4253 	uint32_t	num_props;
4254 	uint_t		model;
4255 	struct mrsas_dcmd_frame	*kdcmd;
4256 	struct mrsas_drv_ver	dv;
4257 	struct mrsas_pci_information pi;
4258 
4259 	kdcmd = (struct mrsas_dcmd_frame *)&ioctl->frame[0];
4260 
4261 	model = ddi_model_convert_from(mode & FMODELS);
4262 	if (model == DDI_MODEL_ILP32) {
4263 		con_log(CL_ANN1, (CE_NOTE,
4264 		    "handle_drv_ioctl: DDI_MODEL_ILP32"));
4265 
4266 		xferlen	= kdcmd->sgl.sge32[0].length;
4267 
4268 		ubuf = (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
4269 	} else {
4270 #ifdef _ILP32
4271 		con_log(CL_ANN1, (CE_NOTE,
4272 		    "handle_drv_ioctl: DDI_MODEL_ILP32"));
4273 		xferlen	= kdcmd->sgl.sge32[0].length;
4274 		ubuf = (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
4275 #else
4276 		con_log(CL_ANN1, (CE_NOTE,
4277 		    "handle_drv_ioctl: DDI_MODEL_LP64"));
4278 		xferlen	= kdcmd->sgl.sge64[0].length;
4279 		ubuf = (void *)(ulong_t)kdcmd->sgl.sge64[0].phys_addr;
4280 #endif
4281 	}
4282 	con_log(CL_ANN1, (CE_NOTE, "handle_drv_ioctl: "
4283 	    "dataBuf=%p size=%d bytes", ubuf, xferlen));
4284 
4285 	switch (kdcmd->opcode) {
4286 	case MRSAS_DRIVER_IOCTL_DRIVER_VERSION:
4287 		con_log(CL_ANN1, (CE_NOTE, "handle_drv_ioctl: "
4288 		    "MRSAS_DRIVER_IOCTL_DRIVER_VERSION"));
4289 
4290 		fill_up_drv_ver(&dv);
4291 
4292 		if (ddi_copyout(&dv, ubuf, xferlen, mode)) {
4293 			con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
4294 			    "MRSAS_DRIVER_IOCTL_DRIVER_VERSION : "
4295 			    "copy to user space failed"));
4296 			kdcmd->cmd_status = 1;
4297 			rval = 1;
4298 		} else {
4299 			kdcmd->cmd_status = 0;
4300 		}
4301 		break;
4302 	case MRSAS_DRIVER_IOCTL_PCI_INFORMATION:
4303 		con_log(CL_ANN1, (CE_NOTE, "handle_drv_ioctl: "
4304 		    "MRSAS_DRIVER_IOCTL_PCI_INFORMAITON"));
4305 
4306 		if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, instance->dip,
4307 		    0, "reg", &props, &num_props)) {
4308 			con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
4309 			    "MRSAS_DRIVER_IOCTL_PCI_INFORMATION : "
4310 			    "ddi_prop_look_int_array failed"));
4311 			rval = DDI_FAILURE;
4312 		} else {
4313 
4314 			pi.busNumber = (props[0] >> 16) & 0xFF;
4315 			pi.deviceNumber = (props[0] >> 11) & 0x1f;
4316 			pi.functionNumber = (props[0] >> 8) & 0x7;
4317 			ddi_prop_free((void *)props);
4318 		}
4319 
4320 		pci_conf_buf = (uint8_t *)&pi.pciHeaderInfo;
4321 
4322 		for (i = 0; i < (sizeof (struct mrsas_pci_information) -
4323 		    offsetof(struct mrsas_pci_information, pciHeaderInfo));
4324 		    i++) {
4325 			pci_conf_buf[i] =
4326 			    pci_config_get8(instance->pci_handle, i);
4327 		}
4328 
4329 		if (ddi_copyout(&pi, ubuf, xferlen, mode)) {
4330 			con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
4331 			    "MRSAS_DRIVER_IOCTL_PCI_INFORMATION : "
4332 			    "copy to user space failed"));
4333 			kdcmd->cmd_status = 1;
4334 			rval = 1;
4335 		} else {
4336 			kdcmd->cmd_status = 0;
4337 		}
4338 		break;
4339 	default:
4340 		con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
4341 		    "invalid driver specific IOCTL opcode = 0x%x",
4342 		    kdcmd->opcode));
4343 		kdcmd->cmd_status = 1;
4344 		rval = DDI_FAILURE;
4345 		break;
4346 	}
4347 
4348 	return (rval);
4349 }
4350 
4351 /*
4352  * handle_mfi_ioctl
4353  */
4354 static int
4355 handle_mfi_ioctl(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
4356     int mode)
4357 {
4358 	int	rval = DDI_SUCCESS;
4359 
4360 	struct mrsas_header	*hdr;
4361 	struct mrsas_cmd	*cmd;
4362 
4363 	cmd = get_mfi_pkt(instance);
4364 
4365 	if (!cmd) {
4366 		con_log(CL_ANN, (CE_WARN, "mr_sas: "
4367 		    "failed to get a cmd packet"));
4368 		DTRACE_PROBE2(mfi_ioctl_err, uint16_t,
4369 		    instance->fw_outstanding, uint16_t, instance->max_fw_cmds);
4370 		return (DDI_FAILURE);
4371 	}
4372 
4373 	/* Clear the frame buffer and assign back the context id */
4374 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
4375 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
4376 	    cmd->index);
4377 
4378 	hdr = (struct mrsas_header *)&ioctl->frame[0];
4379 
4380 	switch (ddi_get8(cmd->frame_dma_obj.acc_handle, &hdr->cmd)) {
4381 	case MFI_CMD_OP_DCMD:
4382 		rval = issue_mfi_dcmd(instance, ioctl, cmd, mode);
4383 		break;
4384 	case MFI_CMD_OP_SMP:
4385 		rval = issue_mfi_smp(instance, ioctl, cmd, mode);
4386 		break;
4387 	case MFI_CMD_OP_STP:
4388 		rval = issue_mfi_stp(instance, ioctl, cmd, mode);
4389 		break;
4390 	case MFI_CMD_OP_LD_SCSI:
4391 	case MFI_CMD_OP_PD_SCSI:
4392 		rval = issue_mfi_pthru(instance, ioctl, cmd, mode);
4393 		break;
4394 	default:
4395 		con_log(CL_ANN, (CE_WARN, "handle_mfi_ioctl: "
4396 		    "invalid mfi ioctl hdr->cmd = %d", hdr->cmd));
4397 		rval = DDI_FAILURE;
4398 		break;
4399 	}
4400 
4401 	if (mrsas_common_check(instance, cmd) != DDI_SUCCESS)
4402 		rval = DDI_FAILURE;
4403 
4404 	return_mfi_pkt(instance, cmd);
4405 
4406 	return (rval);
4407 }
4408 
4409 /*
4410  * AEN
4411  */
4412 static int
4413 handle_mfi_aen(struct mrsas_instance *instance, struct mrsas_aen *aen)
4414 {
4415 	int	rval = 0;
4416 
4417 	rval = register_mfi_aen(instance, instance->aen_seq_num,
4418 	    aen->class_locale_word);
4419 
4420 	aen->cmd_status = (uint8_t)rval;
4421 
4422 	return (rval);
4423 }
4424 
4425 static int
4426 register_mfi_aen(struct mrsas_instance *instance, uint32_t seq_num,
4427     uint32_t class_locale_word)
4428 {
4429 	int	ret_val;
4430 
4431 	struct mrsas_cmd	*cmd, *aen_cmd;
4432 	struct mrsas_dcmd_frame	*dcmd;
4433 	union mrsas_evt_class_locale	curr_aen;
4434 	union mrsas_evt_class_locale	prev_aen;
4435 
4436 	/*
4437 	 * If there an AEN pending already (aen_cmd), check if the
4438 	 * class_locale of that pending AEN is inclusive of the new
4439 	 * AEN request we currently have. If it is, then we don't have
4440 	 * to do anything. In other words, whichever events the current
4441 	 * AEN request is subscribing to, have already been subscribed
4442 	 * to.
4443 	 *
4444 	 * If the old_cmd is _not_ inclusive, then we have to abort
4445 	 * that command, form a class_locale that is superset of both
4446 	 * old and current and re-issue to the FW
4447 	 */
4448 
4449 	curr_aen.word = LE_32(class_locale_word);
4450 	curr_aen.members.locale = LE_16(curr_aen.members.locale);
4451 	aen_cmd = instance->aen_cmd;
4452 	if (aen_cmd) {
4453 		prev_aen.word = ddi_get32(aen_cmd->frame_dma_obj.acc_handle,
4454 		    &aen_cmd->frame->dcmd.mbox.w[1]);
4455 		prev_aen.word = LE_32(prev_aen.word);
4456 		prev_aen.members.locale = LE_16(prev_aen.members.locale);
4457 		/*
4458 		 * A class whose enum value is smaller is inclusive of all
4459 		 * higher values. If a PROGRESS (= -1) was previously
4460 		 * registered, then a new registration requests for higher
4461 		 * classes need not be sent to FW. They are automatically
4462 		 * included.
4463 		 *
4464 		 * Locale numbers don't have such hierarchy. They are bitmap
4465 		 * values
4466 		 */
4467 		if ((prev_aen.members.class <= curr_aen.members.class) &&
4468 		    !((prev_aen.members.locale & curr_aen.members.locale) ^
4469 		    curr_aen.members.locale)) {
4470 			/*
4471 			 * Previously issued event registration includes
4472 			 * current request. Nothing to do.
4473 			 */
4474 
4475 			return (0);
4476 		} else {
4477 			curr_aen.members.locale |= prev_aen.members.locale;
4478 
4479 			if (prev_aen.members.class < curr_aen.members.class)
4480 				curr_aen.members.class = prev_aen.members.class;
4481 
4482 			ret_val = abort_aen_cmd(instance, aen_cmd);
4483 
4484 			if (ret_val) {
4485 				con_log(CL_ANN, (CE_WARN, "register_mfi_aen: "
4486 				    "failed to abort prevous AEN command"));
4487 
4488 				return (ret_val);
4489 			}
4490 		}
4491 	} else {
4492 		curr_aen.word = LE_32(class_locale_word);
4493 		curr_aen.members.locale = LE_16(curr_aen.members.locale);
4494 	}
4495 
4496 	cmd = get_mfi_pkt(instance);
4497 
4498 	if (!cmd) {
4499 		DTRACE_PROBE2(mfi_aen_err, uint16_t, instance->fw_outstanding,
4500 		    uint16_t, instance->max_fw_cmds);
4501 		return (ENOMEM);
4502 	}
4503 	/* Clear the frame buffer and assign back the context id */
4504 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
4505 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
4506 	    cmd->index);
4507 
4508 	dcmd = &cmd->frame->dcmd;
4509 
4510 	/* for(i = 0; i < DCMD_MBOX_SZ; i++) dcmd->mbox.b[i] = 0; */
4511 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
4512 
4513 	(void) memset(instance->mfi_evt_detail_obj.buffer, 0,
4514 	    sizeof (struct mrsas_evt_detail));
4515 
4516 	/* Prepare DCMD for aen registration */
4517 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
4518 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status, 0x0);
4519 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 1);
4520 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
4521 	    MFI_FRAME_DIR_READ);
4522 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
4523 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len,
4524 	    sizeof (struct mrsas_evt_detail));
4525 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
4526 	    MR_DCMD_CTRL_EVENT_WAIT);
4527 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->mbox.w[0], seq_num);
4528 	curr_aen.members.locale = LE_16(curr_aen.members.locale);
4529 	curr_aen.word = LE_32(curr_aen.word);
4530 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->mbox.w[1],
4531 	    curr_aen.word);
4532 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].phys_addr,
4533 	    instance->mfi_evt_detail_obj.dma_cookie[0].dmac_address);
4534 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].length,
4535 	    sizeof (struct mrsas_evt_detail));
4536 
4537 	instance->aen_seq_num = seq_num;
4538 
4539 
4540 	/*
4541 	 * Store reference to the cmd used to register for AEN. When an
4542 	 * application wants us to register for AEN, we have to abort this
4543 	 * cmd and re-register with a new EVENT LOCALE supplied by that app
4544 	 */
4545 	instance->aen_cmd = cmd;
4546 
4547 	cmd->frame_count = 1;
4548 
4549 	/* Issue the aen registration frame */
4550 	/* atomic_add_16 (&instance->fw_outstanding, 1); */
4551 	instance->func_ptr->issue_cmd(cmd, instance);
4552 
4553 	return (0);
4554 }
4555 
4556 static void
4557 display_scsi_inquiry(caddr_t scsi_inq)
4558 {
4559 #define	MAX_SCSI_DEVICE_CODE	14
4560 	int		i;
4561 	char		inquiry_buf[256] = {0};
4562 	int		len;
4563 	const char	*const scsi_device_types[] = {
4564 		"Direct-Access    ",
4565 		"Sequential-Access",
4566 		"Printer          ",
4567 		"Processor        ",
4568 		"WORM             ",
4569 		"CD-ROM           ",
4570 		"Scanner          ",
4571 		"Optical Device   ",
4572 		"Medium Changer   ",
4573 		"Communications   ",
4574 		"Unknown          ",
4575 		"Unknown          ",
4576 		"Unknown          ",
4577 		"Enclosure        ",
4578 	};
4579 
4580 	len = 0;
4581 
4582 	len += snprintf(inquiry_buf + len, 265 - len, "  Vendor: ");
4583 	for (i = 8; i < 16; i++) {
4584 		len += snprintf(inquiry_buf + len, 265 - len, "%c",
4585 		    scsi_inq[i]);
4586 	}
4587 
4588 	len += snprintf(inquiry_buf + len, 265 - len, "  Model: ");
4589 
4590 	for (i = 16; i < 32; i++) {
4591 		len += snprintf(inquiry_buf + len, 265 - len, "%c",
4592 		    scsi_inq[i]);
4593 	}
4594 
4595 	len += snprintf(inquiry_buf + len, 265 - len, "  Rev: ");
4596 
4597 	for (i = 32; i < 36; i++) {
4598 		len += snprintf(inquiry_buf + len, 265 - len, "%c",
4599 		    scsi_inq[i]);
4600 	}
4601 
4602 	len += snprintf(inquiry_buf + len, 265 - len, "\n");
4603 
4604 
4605 	i = scsi_inq[0] & 0x1f;
4606 
4607 
4608 	len += snprintf(inquiry_buf + len, 265 - len, "  Type:   %s ",
4609 	    i < MAX_SCSI_DEVICE_CODE ? scsi_device_types[i] :
4610 	    "Unknown          ");
4611 
4612 
4613 	len += snprintf(inquiry_buf + len, 265 - len,
4614 	    "                 ANSI SCSI revision: %02x", scsi_inq[2] & 0x07);
4615 
4616 	if ((scsi_inq[2] & 0x07) == 1 && (scsi_inq[3] & 0x0f) == 1) {
4617 		len += snprintf(inquiry_buf + len, 265 - len, " CCS\n");
4618 	} else {
4619 		len += snprintf(inquiry_buf + len, 265 - len, "\n");
4620 	}
4621 
4622 	con_log(CL_ANN1, (CE_CONT, inquiry_buf));
4623 }
4624 
4625 static int
4626 read_fw_status_reg_ppc(struct mrsas_instance *instance)
4627 {
4628 	return ((int)RD_OB_SCRATCH_PAD_0(instance));
4629 }
4630 
4631 static void
4632 issue_cmd_ppc(struct mrsas_cmd *cmd, struct mrsas_instance *instance)
4633 {
4634 	atomic_add_16(&instance->fw_outstanding, 1);
4635 
4636 	/* Issue the command to the FW */
4637 	WR_IB_QPORT((cmd->frame_phys_addr) |
4638 	    (((cmd->frame_count - 1) << 1) | 1), instance);
4639 }
4640 
4641 /*
4642  * issue_cmd_in_sync_mode
4643  */
4644 static int
4645 issue_cmd_in_sync_mode_ppc(struct mrsas_instance *instance,
4646     struct mrsas_cmd *cmd)
4647 {
4648 	int		i;
4649 	uint32_t	msecs = MFI_POLL_TIMEOUT_SECS * (10 * MILLISEC);
4650 
4651 	con_log(CL_ANN1, (CE_NOTE, "issue_cmd_in_sync_mode_ppc: called"));
4652 
4653 	cmd->cmd_status	= ENODATA;
4654 
4655 	WR_IB_QPORT((cmd->frame_phys_addr) |
4656 	    (((cmd->frame_count - 1) << 1) | 1), instance);
4657 
4658 	mutex_enter(&instance->int_cmd_mtx);
4659 
4660 	for (i = 0; i < msecs && (cmd->cmd_status == ENODATA); i++) {
4661 		cv_wait(&instance->int_cmd_cv, &instance->int_cmd_mtx);
4662 	}
4663 
4664 	mutex_exit(&instance->int_cmd_mtx);
4665 
4666 	con_log(CL_ANN1, (CE_NOTE, "issue_cmd_in_sync_mode_ppc: done"));
4667 
4668 	if (i < (msecs -1)) {
4669 		return (DDI_SUCCESS);
4670 	} else {
4671 		return (DDI_FAILURE);
4672 	}
4673 }
4674 
4675 /*
4676  * issue_cmd_in_poll_mode
4677  */
4678 static int
4679 issue_cmd_in_poll_mode_ppc(struct mrsas_instance *instance,
4680     struct mrsas_cmd *cmd)
4681 {
4682 	int		i;
4683 	uint16_t	flags;
4684 	uint32_t	msecs = MFI_POLL_TIMEOUT_SECS * MILLISEC;
4685 	struct mrsas_header *frame_hdr;
4686 
4687 	con_log(CL_ANN1, (CE_NOTE, "issue_cmd_in_poll_mode_ppc: called"));
4688 
4689 	frame_hdr = (struct mrsas_header *)cmd->frame;
4690 	ddi_put8(cmd->frame_dma_obj.acc_handle, &frame_hdr->cmd_status,
4691 	    MFI_CMD_STATUS_POLL_MODE);
4692 	flags = ddi_get16(cmd->frame_dma_obj.acc_handle, &frame_hdr->flags);
4693 	flags 	|= MFI_FRAME_DONT_POST_IN_REPLY_QUEUE;
4694 
4695 	ddi_put16(cmd->frame_dma_obj.acc_handle, &frame_hdr->flags, flags);
4696 
4697 	/* issue the frame using inbound queue port */
4698 	WR_IB_QPORT((cmd->frame_phys_addr) |
4699 	    (((cmd->frame_count - 1) << 1) | 1), instance);
4700 
4701 	/* wait for cmd_status to change from 0xFF */
4702 	for (i = 0; i < msecs && (
4703 	    ddi_get8(cmd->frame_dma_obj.acc_handle, &frame_hdr->cmd_status)
4704 	    == MFI_CMD_STATUS_POLL_MODE); i++) {
4705 		drv_usecwait(MILLISEC); /* wait for 1000 usecs */
4706 	}
4707 
4708 	if (ddi_get8(cmd->frame_dma_obj.acc_handle, &frame_hdr->cmd_status)
4709 	    == MFI_CMD_STATUS_POLL_MODE) {
4710 		con_log(CL_ANN, (CE_NOTE, "issue_cmd_in_poll_mode: "
4711 		    "cmd polling timed out"));
4712 		return (DDI_FAILURE);
4713 	}
4714 
4715 	return (DDI_SUCCESS);
4716 }
4717 
4718 static void
4719 enable_intr_ppc(struct mrsas_instance *instance)
4720 {
4721 	uint32_t	mask;
4722 
4723 	con_log(CL_ANN1, (CE_NOTE, "enable_intr_ppc: called"));
4724 
4725 	/* WR_OB_DOORBELL_CLEAR(0xFFFFFFFF, instance); */
4726 	WR_OB_DOORBELL_CLEAR(OB_DOORBELL_CLEAR_MASK, instance);
4727 
4728 	/* WR_OB_INTR_MASK(~0x80000000, instance); */
4729 	WR_OB_INTR_MASK(~(MFI_REPLY_2108_MESSAGE_INTR_MASK), instance);
4730 
4731 	/* dummy read to force PCI flush */
4732 	mask = RD_OB_INTR_MASK(instance);
4733 
4734 	con_log(CL_ANN1, (CE_NOTE, "enable_intr_ppc: "
4735 	    "outbound_intr_mask = 0x%x", mask));
4736 }
4737 
4738 static void
4739 disable_intr_ppc(struct mrsas_instance *instance)
4740 {
4741 	uint32_t	mask;
4742 
4743 	con_log(CL_ANN1, (CE_NOTE, "disable_intr_ppc: called"));
4744 
4745 	con_log(CL_ANN1, (CE_NOTE, "disable_intr_ppc: before : "
4746 	    "outbound_intr_mask = 0x%x", RD_OB_INTR_MASK(instance)));
4747 
4748 	/* WR_OB_INTR_MASK(0xFFFFFFFF, instance); */
4749 	WR_OB_INTR_MASK(OB_INTR_MASK, instance);
4750 
4751 	con_log(CL_ANN1, (CE_NOTE, "disable_intr_ppc: after : "
4752 	    "outbound_intr_mask = 0x%x", RD_OB_INTR_MASK(instance)));
4753 
4754 	/* dummy read to force PCI flush */
4755 	mask = RD_OB_INTR_MASK(instance);
4756 #ifdef lint
4757 	mask = mask;
4758 #endif
4759 }
4760 
4761 static int
4762 intr_ack_ppc(struct mrsas_instance *instance)
4763 {
4764 	uint32_t	status;
4765 	int ret = DDI_INTR_CLAIMED;
4766 
4767 	con_log(CL_ANN1, (CE_NOTE, "intr_ack_ppc: called"));
4768 
4769 	/* check if it is our interrupt */
4770 	status = RD_OB_INTR_STATUS(instance);
4771 
4772 	con_log(CL_ANN1, (CE_NOTE, "intr_ack_ppc: status = 0x%x", status));
4773 
4774 	if (!(status & MFI_REPLY_2108_MESSAGE_INTR)) {
4775 		ret = DDI_INTR_UNCLAIMED;
4776 	}
4777 
4778 	if (mrsas_check_acc_handle(instance->regmap_handle) != DDI_SUCCESS) {
4779 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
4780 		ret = DDI_INTR_UNCLAIMED;
4781 	}
4782 
4783 	if (ret == DDI_INTR_UNCLAIMED) {
4784 		return (ret);
4785 	}
4786 	/* clear the interrupt by writing back the same value */
4787 	WR_OB_DOORBELL_CLEAR(status, instance);
4788 
4789 	/* dummy READ */
4790 	status = RD_OB_INTR_STATUS(instance);
4791 
4792 	con_log(CL_ANN1, (CE_NOTE, "intr_ack_ppc: interrupt cleared"));
4793 
4794 	return (ret);
4795 }
4796 
4797 static int
4798 mrsas_common_check(struct mrsas_instance *instance,
4799     struct  mrsas_cmd *cmd)
4800 {
4801 	int ret = DDI_SUCCESS;
4802 
4803 	if (mrsas_check_dma_handle(cmd->frame_dma_obj.dma_handle) !=
4804 	    DDI_SUCCESS) {
4805 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
4806 		if (cmd->pkt != NULL) {
4807 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
4808 			cmd->pkt->pkt_statistics = 0;
4809 		}
4810 		ret = DDI_FAILURE;
4811 	}
4812 	if (mrsas_check_dma_handle(instance->mfi_internal_dma_obj.dma_handle)
4813 	    != DDI_SUCCESS) {
4814 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
4815 		if (cmd->pkt != NULL) {
4816 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
4817 			cmd->pkt->pkt_statistics = 0;
4818 		}
4819 		ret = DDI_FAILURE;
4820 	}
4821 	if (mrsas_check_dma_handle(instance->mfi_evt_detail_obj.dma_handle) !=
4822 	    DDI_SUCCESS) {
4823 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
4824 		if (cmd->pkt != NULL) {
4825 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
4826 			cmd->pkt->pkt_statistics = 0;
4827 		}
4828 		ret = DDI_FAILURE;
4829 	}
4830 	if (mrsas_check_acc_handle(instance->regmap_handle) != DDI_SUCCESS) {
4831 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
4832 
4833 		ddi_fm_acc_err_clear(instance->regmap_handle, DDI_FME_VER0);
4834 
4835 		if (cmd->pkt != NULL) {
4836 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
4837 			cmd->pkt->pkt_statistics = 0;
4838 		}
4839 		ret = DDI_FAILURE;
4840 	}
4841 
4842 	return (ret);
4843 }
4844 
4845 /*ARGSUSED*/
4846 static int
4847 mrsas_fm_error_cb(dev_info_t *dip, ddi_fm_error_t *err, const void *impl_data)
4848 {
4849 	/*
4850 	 * as the driver can always deal with an error in any dma or
4851 	 * access handle, we can just return the fme_status value.
4852 	 */
4853 	pci_ereport_post(dip, err, NULL);
4854 	return (err->fme_status);
4855 }
4856 
4857 static void
4858 mrsas_fm_init(struct mrsas_instance *instance)
4859 {
4860 	/* Need to change iblock to priority for new MSI intr */
4861 	ddi_iblock_cookie_t fm_ibc;
4862 
4863 	/* Only register with IO Fault Services if we have some capability */
4864 	if (instance->fm_capabilities) {
4865 		/* Adjust access and dma attributes for FMA */
4866 		endian_attr.devacc_attr_access = DDI_FLAGERR_ACC;
4867 		mrsas_generic_dma_attr.dma_attr_flags = DDI_DMA_FLAGERR;
4868 
4869 		/*
4870 		 * Register capabilities with IO Fault Services.
4871 		 * fm_capabilities will be updated to indicate
4872 		 * capabilities actually supported (not requested.)
4873 		 */
4874 
4875 		ddi_fm_init(instance->dip, &instance->fm_capabilities, &fm_ibc);
4876 
4877 		/*
4878 		 * Initialize pci ereport capabilities if ereport
4879 		 * capable (should always be.)
4880 		 */
4881 
4882 		if (DDI_FM_EREPORT_CAP(instance->fm_capabilities) ||
4883 		    DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
4884 			pci_ereport_setup(instance->dip);
4885 		}
4886 
4887 		/*
4888 		 * Register error callback if error callback capable.
4889 		 */
4890 		if (DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
4891 			ddi_fm_handler_register(instance->dip,
4892 			    mrsas_fm_error_cb, (void*) instance);
4893 		}
4894 	} else {
4895 		endian_attr.devacc_attr_access = DDI_DEFAULT_ACC;
4896 		mrsas_generic_dma_attr.dma_attr_flags = 0;
4897 	}
4898 }
4899 
4900 static void
4901 mrsas_fm_fini(struct mrsas_instance *instance)
4902 {
4903 	/* Only unregister FMA capabilities if registered */
4904 	if (instance->fm_capabilities) {
4905 		/*
4906 		 * Un-register error callback if error callback capable.
4907 		 */
4908 		if (DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
4909 			ddi_fm_handler_unregister(instance->dip);
4910 		}
4911 
4912 		/*
4913 		 * Release any resources allocated by pci_ereport_setup()
4914 		 */
4915 		if (DDI_FM_EREPORT_CAP(instance->fm_capabilities) ||
4916 		    DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
4917 			pci_ereport_teardown(instance->dip);
4918 		}
4919 
4920 		/* Unregister from IO Fault Services */
4921 		ddi_fm_fini(instance->dip);
4922 
4923 		/* Adjust access and dma attributes for FMA */
4924 		endian_attr.devacc_attr_access = DDI_DEFAULT_ACC;
4925 		mrsas_generic_dma_attr.dma_attr_flags = 0;
4926 	}
4927 }
4928 
4929 int
4930 mrsas_check_acc_handle(ddi_acc_handle_t handle)
4931 {
4932 	ddi_fm_error_t de;
4933 
4934 	if (handle == NULL) {
4935 		return (DDI_FAILURE);
4936 	}
4937 
4938 	ddi_fm_acc_err_get(handle, &de, DDI_FME_VERSION);
4939 
4940 	return (de.fme_status);
4941 }
4942 
4943 int
4944 mrsas_check_dma_handle(ddi_dma_handle_t handle)
4945 {
4946 	ddi_fm_error_t de;
4947 
4948 	if (handle == NULL) {
4949 		return (DDI_FAILURE);
4950 	}
4951 
4952 	ddi_fm_dma_err_get(handle, &de, DDI_FME_VERSION);
4953 
4954 	return (de.fme_status);
4955 }
4956 
4957 void
4958 mrsas_fm_ereport(struct mrsas_instance *instance, char *detail)
4959 {
4960 	uint64_t ena;
4961 	char buf[FM_MAX_CLASS];
4962 
4963 	(void) snprintf(buf, FM_MAX_CLASS, "%s.%s", DDI_FM_DEVICE, detail);
4964 	ena = fm_ena_generate(0, FM_ENA_FMT1);
4965 	if (DDI_FM_EREPORT_CAP(instance->fm_capabilities)) {
4966 		ddi_fm_ereport_post(instance->dip, buf, ena, DDI_NOSLEEP,
4967 		    FM_VERSION, DATA_TYPE_UINT8, FM_EREPORT_VERSION, NULL);
4968 	}
4969 }
4970 
4971 static int
4972 mrsas_add_intrs(struct mrsas_instance *instance, int intr_type)
4973 {
4974 
4975 	dev_info_t *dip = instance->dip;
4976 	int	avail, actual, count;
4977 	int	i, flag, ret;
4978 
4979 	con_log(CL_DLEVEL1, (CE_WARN, "mrsas_add_intrs: intr_type = %x",
4980 	    intr_type));
4981 
4982 	/* Get number of interrupts */
4983 	ret = ddi_intr_get_nintrs(dip, intr_type, &count);
4984 	if ((ret != DDI_SUCCESS) || (count == 0)) {
4985 		con_log(CL_ANN, (CE_WARN, "ddi_intr_get_nintrs() failed:"
4986 		    "ret %d count %d", ret, count));
4987 
4988 		return (DDI_FAILURE);
4989 	}
4990 
4991 	con_log(CL_DLEVEL1, (CE_WARN, "mrsas_add_intrs: count = %d ", count));
4992 
4993 	/* Get number of available interrupts */
4994 	ret = ddi_intr_get_navail(dip, intr_type, &avail);
4995 	if ((ret != DDI_SUCCESS) || (avail == 0)) {
4996 		con_log(CL_ANN, (CE_WARN, "ddi_intr_get_navail() failed:"
4997 		    "ret %d avail %d", ret, avail));
4998 
4999 		return (DDI_FAILURE);
5000 	}
5001 	con_log(CL_DLEVEL1, (CE_WARN, "mrsas_add_intrs: avail = %d ", avail));
5002 
5003 	/* Only one interrupt routine. So limit the count to 1 */
5004 	if (count > 1) {
5005 		count = 1;
5006 	}
5007 
5008 	/*
5009 	 * Allocate an array of interrupt handlers. Currently we support
5010 	 * only one interrupt. The framework can be extended later.
5011 	 */
5012 	instance->intr_size = count * sizeof (ddi_intr_handle_t);
5013 	instance->intr_htable = kmem_zalloc(instance->intr_size, KM_SLEEP);
5014 	ASSERT(instance->intr_htable);
5015 
5016 	flag = ((intr_type == DDI_INTR_TYPE_MSI) || (intr_type ==
5017 	    DDI_INTR_TYPE_MSIX)) ? DDI_INTR_ALLOC_STRICT:DDI_INTR_ALLOC_NORMAL;
5018 
5019 	/* Allocate interrupt */
5020 	ret = ddi_intr_alloc(dip, instance->intr_htable, intr_type, 0,
5021 	    count, &actual, flag);
5022 
5023 	if ((ret != DDI_SUCCESS) || (actual == 0)) {
5024 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
5025 		    "avail = %d", avail));
5026 		kmem_free(instance->intr_htable, instance->intr_size);
5027 		return (DDI_FAILURE);
5028 	}
5029 	if (actual < count) {
5030 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
5031 		    "Requested = %d  Received = %d", count, actual));
5032 	}
5033 	instance->intr_cnt = actual;
5034 
5035 	/*
5036 	 * Get the priority of the interrupt allocated.
5037 	 */
5038 	if ((ret = ddi_intr_get_pri(instance->intr_htable[0],
5039 	    &instance->intr_pri)) != DDI_SUCCESS) {
5040 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
5041 		    "get priority call failed"));
5042 
5043 		for (i = 0; i < actual; i++) {
5044 			(void) ddi_intr_free(instance->intr_htable[i]);
5045 		}
5046 		kmem_free(instance->intr_htable, instance->intr_size);
5047 		return (DDI_FAILURE);
5048 	}
5049 
5050 	/*
5051 	 * Test for high level mutex. we don't support them.
5052 	 */
5053 	if (instance->intr_pri >= ddi_intr_get_hilevel_pri()) {
5054 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
5055 		    "High level interrupts not supported."));
5056 
5057 		for (i = 0; i < actual; i++) {
5058 			(void) ddi_intr_free(instance->intr_htable[i]);
5059 		}
5060 		kmem_free(instance->intr_htable, instance->intr_size);
5061 		return (DDI_FAILURE);
5062 	}
5063 
5064 	con_log(CL_DLEVEL1, (CE_NOTE, "mrsas_add_intrs: intr_pri = 0x%x ",
5065 	    instance->intr_pri));
5066 
5067 	/* Call ddi_intr_add_handler() */
5068 	for (i = 0; i < actual; i++) {
5069 		ret = ddi_intr_add_handler(instance->intr_htable[i],
5070 		    (ddi_intr_handler_t *)mrsas_isr, (caddr_t)instance,
5071 		    (caddr_t)(uintptr_t)i);
5072 
5073 		if (ret != DDI_SUCCESS) {
5074 			con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs:"
5075 			    "failed %d", ret));
5076 
5077 			for (i = 0; i < actual; i++) {
5078 				(void) ddi_intr_free(instance->intr_htable[i]);
5079 			}
5080 			kmem_free(instance->intr_htable, instance->intr_size);
5081 			return (DDI_FAILURE);
5082 		}
5083 
5084 	}
5085 
5086 	con_log(CL_DLEVEL1, (CE_WARN, " ddi_intr_add_handler done"));
5087 
5088 	if ((ret = ddi_intr_get_cap(instance->intr_htable[0],
5089 	    &instance->intr_cap)) != DDI_SUCCESS) {
5090 		con_log(CL_ANN, (CE_WARN, "ddi_intr_get_cap() failed %d",
5091 		    ret));
5092 
5093 		/* Free already allocated intr */
5094 		for (i = 0; i < actual; i++) {
5095 			(void) ddi_intr_remove_handler(
5096 			    instance->intr_htable[i]);
5097 			(void) ddi_intr_free(instance->intr_htable[i]);
5098 		}
5099 		kmem_free(instance->intr_htable, instance->intr_size);
5100 		return (DDI_FAILURE);
5101 	}
5102 
5103 	if (instance->intr_cap &  DDI_INTR_FLAG_BLOCK) {
5104 		con_log(CL_ANN, (CE_WARN, "Calling ddi_intr_block _enable"));
5105 
5106 		(void) ddi_intr_block_enable(instance->intr_htable,
5107 		    instance->intr_cnt);
5108 	} else {
5109 		con_log(CL_ANN, (CE_NOTE, " calling ddi_intr_enable"));
5110 
5111 		for (i = 0; i < instance->intr_cnt; i++) {
5112 			(void) ddi_intr_enable(instance->intr_htable[i]);
5113 			con_log(CL_ANN, (CE_NOTE, "ddi intr enable returns "
5114 			    "%d", i));
5115 		}
5116 	}
5117 
5118 	return (DDI_SUCCESS);
5119 
5120 }
5121 
5122 
5123 static void
5124 mrsas_rem_intrs(struct mrsas_instance *instance)
5125 {
5126 	int i;
5127 
5128 	con_log(CL_ANN, (CE_NOTE, "mrsas_rem_intrs called"));
5129 
5130 	/* Disable all interrupts first */
5131 	if (instance->intr_cap & DDI_INTR_FLAG_BLOCK) {
5132 		(void) ddi_intr_block_disable(instance->intr_htable,
5133 		    instance->intr_cnt);
5134 	} else {
5135 		for (i = 0; i < instance->intr_cnt; i++) {
5136 			(void) ddi_intr_disable(instance->intr_htable[i]);
5137 		}
5138 	}
5139 
5140 	/* Remove all the handlers */
5141 
5142 	for (i = 0; i < instance->intr_cnt; i++) {
5143 		(void) ddi_intr_remove_handler(instance->intr_htable[i]);
5144 		(void) ddi_intr_free(instance->intr_htable[i]);
5145 	}
5146 
5147 	kmem_free(instance->intr_htable, instance->intr_size);
5148 }
5149 
5150 static int
5151 mrsas_tran_bus_config(dev_info_t *parent, uint_t flags,
5152     ddi_bus_config_op_t op, void *arg, dev_info_t **childp)
5153 {
5154 	struct mrsas_instance *instance;
5155 	int config;
5156 	int rval;
5157 
5158 	char *ptr = NULL;
5159 	int tgt, lun;
5160 
5161 	con_log(CL_ANN1, (CE_NOTE, "Bus config called for op = %x", op));
5162 
5163 	if ((instance = ddi_get_soft_state(mrsas_state,
5164 	    ddi_get_instance(parent))) == NULL) {
5165 		return (NDI_FAILURE);
5166 	}
5167 
5168 	/* Hold nexus during bus_config */
5169 	ndi_devi_enter(parent, &config);
5170 	switch (op) {
5171 	case BUS_CONFIG_ONE: {
5172 
5173 		/* parse wwid/target name out of name given */
5174 		if ((ptr = strchr((char *)arg, '@')) == NULL) {
5175 			rval = NDI_FAILURE;
5176 			break;
5177 		}
5178 		ptr++;
5179 
5180 		if (mrsas_parse_devname(arg, &tgt, &lun) != 0) {
5181 			rval = NDI_FAILURE;
5182 			break;
5183 		}
5184 
5185 		if (lun == 0) {
5186 			rval = mrsas_config_ld(instance, tgt, lun, childp);
5187 		} else {
5188 			rval = NDI_FAILURE;
5189 		}
5190 
5191 		break;
5192 	}
5193 	case BUS_CONFIG_DRIVER:
5194 	case BUS_CONFIG_ALL: {
5195 
5196 		rval = mrsas_config_all_devices(instance);
5197 
5198 		rval = NDI_SUCCESS;
5199 		break;
5200 	}
5201 	}
5202 
5203 	if (rval == NDI_SUCCESS) {
5204 		rval = ndi_busop_bus_config(parent, flags, op, arg, childp, 0);
5205 
5206 	}
5207 	ndi_devi_exit(parent, config);
5208 
5209 	con_log(CL_ANN1, (CE_NOTE, "mrsas_tran_bus_config: rval = %x",
5210 	    rval));
5211 	return (rval);
5212 }
5213 
5214 static int
5215 mrsas_config_all_devices(struct mrsas_instance *instance)
5216 {
5217 	int rval, tgt;
5218 
5219 	for (tgt = 0; tgt < MRDRV_MAX_LD; tgt++) {
5220 		(void) mrsas_config_ld(instance, tgt, 0, NULL);
5221 
5222 	}
5223 
5224 	rval = NDI_SUCCESS;
5225 	return (rval);
5226 }
5227 
5228 static int
5229 mrsas_parse_devname(char *devnm, int *tgt, int *lun)
5230 {
5231 	char devbuf[SCSI_MAXNAMELEN];
5232 	char *addr;
5233 	char *p,  *tp, *lp;
5234 	long num;
5235 
5236 	/* Parse dev name and address */
5237 	(void) strcpy(devbuf, devnm);
5238 	addr = "";
5239 	for (p = devbuf; *p != '\0'; p++) {
5240 		if (*p == '@') {
5241 			addr = p + 1;
5242 			*p = '\0';
5243 		} else if (*p == ':') {
5244 			*p = '\0';
5245 			break;
5246 		}
5247 	}
5248 
5249 	/* Parse target and lun */
5250 	for (p = tp = addr, lp = NULL; *p != '\0'; p++) {
5251 		if (*p == ',') {
5252 			lp = p + 1;
5253 			*p = '\0';
5254 			break;
5255 		}
5256 	}
5257 	if (tgt && tp) {
5258 		if (ddi_strtol(tp, NULL, 0x10, &num)) {
5259 			return (DDI_FAILURE); /* Can declare this as constant */
5260 		}
5261 			*tgt = (int)num;
5262 	}
5263 	if (lun && lp) {
5264 		if (ddi_strtol(lp, NULL, 0x10, &num)) {
5265 			return (DDI_FAILURE);
5266 		}
5267 			*lun = (int)num;
5268 	}
5269 	return (DDI_SUCCESS);  /* Success case */
5270 }
5271 
5272 static int
5273 mrsas_config_ld(struct mrsas_instance *instance, uint16_t tgt,
5274     uint8_t lun, dev_info_t **ldip)
5275 {
5276 	struct scsi_device *sd;
5277 	dev_info_t *child;
5278 	int rval;
5279 
5280 	con_log(CL_ANN1, (CE_NOTE, "mrsas_config_ld: t = %d l = %d",
5281 	    tgt, lun));
5282 
5283 	if ((child = mrsas_find_child(instance, tgt, lun)) != NULL) {
5284 		if (ldip) {
5285 			*ldip = child;
5286 		}
5287 		con_log(CL_ANN1, (CE_NOTE,
5288 		    "mrsas_config_ld: Child = %p found t = %d l = %d",
5289 		    (void *)child, tgt, lun));
5290 		return (NDI_SUCCESS);
5291 	}
5292 
5293 	sd = kmem_zalloc(sizeof (struct scsi_device), KM_SLEEP);
5294 	sd->sd_address.a_hba_tran = instance->tran;
5295 	sd->sd_address.a_target = (uint16_t)tgt;
5296 	sd->sd_address.a_lun = (uint8_t)lun;
5297 
5298 	if (scsi_hba_probe(sd, NULL) == SCSIPROBE_EXISTS)
5299 		rval = mrsas_config_scsi_device(instance, sd, ldip);
5300 	else
5301 		rval = NDI_FAILURE;
5302 
5303 	/* sd_unprobe is blank now. Free buffer manually */
5304 	if (sd->sd_inq) {
5305 		kmem_free(sd->sd_inq, SUN_INQSIZE);
5306 		sd->sd_inq = (struct scsi_inquiry *)NULL;
5307 	}
5308 
5309 	kmem_free(sd, sizeof (struct scsi_device));
5310 	con_log(CL_ANN1, (CE_NOTE, "mrsas_config_ld: return rval = %d",
5311 	    rval));
5312 	return (rval);
5313 }
5314 
5315 static int
5316 mrsas_config_scsi_device(struct mrsas_instance *instance,
5317     struct scsi_device *sd, dev_info_t **dipp)
5318 {
5319 	char *nodename = NULL;
5320 	char **compatible = NULL;
5321 	int ncompatible = 0;
5322 	char *childname;
5323 	dev_info_t *ldip = NULL;
5324 	int tgt = sd->sd_address.a_target;
5325 	int lun = sd->sd_address.a_lun;
5326 	int dtype = sd->sd_inq->inq_dtype & DTYPE_MASK;
5327 	int rval;
5328 
5329 	con_log(CL_ANN1, (CE_WARN, "mr_sas: scsi_device t%dL%d", tgt, lun));
5330 	scsi_hba_nodename_compatible_get(sd->sd_inq, NULL, dtype,
5331 	    NULL, &nodename, &compatible, &ncompatible);
5332 
5333 	if (nodename == NULL) {
5334 		con_log(CL_ANN1, (CE_WARN, "mr_sas: Found no compatible driver "
5335 		    "for t%dL%d", tgt, lun));
5336 		rval = NDI_FAILURE;
5337 		goto finish;
5338 	}
5339 
5340 	childname = (dtype == DTYPE_DIRECT) ? "sd" : nodename;
5341 	con_log(CL_ANN1, (CE_WARN,
5342 	    "mr_sas: Childname = %2s nodename = %s", childname, nodename));
5343 
5344 	/* Create a dev node */
5345 	rval = ndi_devi_alloc(instance->dip, childname, DEVI_SID_NODEID, &ldip);
5346 	con_log(CL_ANN1, (CE_WARN,
5347 	    "mr_sas_config_scsi_device: ndi_devi_alloc rval = %x", rval));
5348 	if (rval == NDI_SUCCESS) {
5349 		if (ndi_prop_update_int(DDI_DEV_T_NONE, ldip, "target", tgt) !=
5350 		    DDI_PROP_SUCCESS) {
5351 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to create "
5352 			    "property for t%dl%d target", tgt, lun));
5353 			rval = NDI_FAILURE;
5354 			goto finish;
5355 		}
5356 		if (ndi_prop_update_int(DDI_DEV_T_NONE, ldip, "lun", lun) !=
5357 		    DDI_PROP_SUCCESS) {
5358 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to create "
5359 			    "property for t%dl%d lun", tgt, lun));
5360 			rval = NDI_FAILURE;
5361 			goto finish;
5362 		}
5363 
5364 		if (ndi_prop_update_string_array(DDI_DEV_T_NONE, ldip,
5365 		    "compatible", compatible, ncompatible) !=
5366 		    DDI_PROP_SUCCESS) {
5367 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to create "
5368 			    "property for t%dl%d compatible", tgt, lun));
5369 			rval = NDI_FAILURE;
5370 			goto finish;
5371 		}
5372 
5373 		rval = ndi_devi_online(ldip, NDI_ONLINE_ATTACH);
5374 		if (rval != NDI_SUCCESS) {
5375 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to online "
5376 			    "t%dl%d", tgt, lun));
5377 			ndi_prop_remove_all(ldip);
5378 			(void) ndi_devi_free(ldip);
5379 		} else {
5380 			con_log(CL_ANN1, (CE_WARN, "mr_sas: online Done :"
5381 			    "0 t%dl%d", tgt, lun));
5382 		}
5383 
5384 	}
5385 finish:
5386 	if (dipp) {
5387 		*dipp = ldip;
5388 	}
5389 
5390 	con_log(CL_DLEVEL1, (CE_WARN,
5391 	    "mr_sas: config_scsi_device rval = %d t%dL%d",
5392 	    rval, tgt, lun));
5393 	scsi_hba_nodename_compatible_free(nodename, compatible);
5394 	return (rval);
5395 }
5396 
5397 /*ARGSUSED*/
5398 static int
5399 mrsas_service_evt(struct mrsas_instance *instance, int tgt, int lun, int event,
5400     uint64_t wwn)
5401 {
5402 	struct mrsas_eventinfo *mrevt = NULL;
5403 
5404 	con_log(CL_ANN1, (CE_NOTE,
5405 	    "mrsas_service_evt called for t%dl%d event = %d",
5406 	    tgt, lun, event));
5407 
5408 	if ((instance->taskq == NULL) || (mrevt =
5409 	    kmem_zalloc(sizeof (struct mrsas_eventinfo), KM_NOSLEEP)) == NULL) {
5410 		return (ENOMEM);
5411 	}
5412 
5413 	mrevt->instance = instance;
5414 	mrevt->tgt = tgt;
5415 	mrevt->lun = lun;
5416 	mrevt->event = event;
5417 
5418 	if ((ddi_taskq_dispatch(instance->taskq,
5419 	    (void (*)(void *))mrsas_issue_evt_taskq, mrevt, DDI_NOSLEEP)) !=
5420 	    DDI_SUCCESS) {
5421 		con_log(CL_ANN1, (CE_NOTE,
5422 		    "mr_sas: Event task failed for t%dl%d event = %d",
5423 		    tgt, lun, event));
5424 		kmem_free(mrevt, sizeof (struct mrsas_eventinfo));
5425 		return (DDI_FAILURE);
5426 	}
5427 	DTRACE_PROBE3(service_evt, int, tgt, int, lun, int, event);
5428 	return (DDI_SUCCESS);
5429 }
5430 
5431 static void
5432 mrsas_issue_evt_taskq(struct mrsas_eventinfo *mrevt)
5433 {
5434 	struct mrsas_instance *instance = mrevt->instance;
5435 	dev_info_t *dip, *pdip;
5436 	int circ1 = 0;
5437 	char *devname;
5438 
5439 	con_log(CL_ANN1, (CE_NOTE, "mrsas_issue_evt_taskq: called for"
5440 	    " tgt %d lun %d event %d",
5441 	    mrevt->tgt, mrevt->lun, mrevt->event));
5442 
5443 	if (mrevt->tgt < MRDRV_MAX_LD && mrevt->lun == 0) {
5444 		dip = instance->mr_ld_list[mrevt->tgt].dip;
5445 	} else {
5446 		return;
5447 	}
5448 
5449 	ndi_devi_enter(instance->dip, &circ1);
5450 	switch (mrevt->event) {
5451 	case MRSAS_EVT_CONFIG_TGT:
5452 		if (dip == NULL) {
5453 
5454 			if (mrevt->lun == 0) {
5455 				(void) mrsas_config_ld(instance, mrevt->tgt,
5456 				    0, NULL);
5457 			}
5458 			con_log(CL_ANN1, (CE_NOTE,
5459 			    "mr_sas: EVT_CONFIG_TGT called:"
5460 			    " for tgt %d lun %d event %d",
5461 			    mrevt->tgt, mrevt->lun, mrevt->event));
5462 
5463 		} else {
5464 			con_log(CL_ANN1, (CE_NOTE,
5465 			    "mr_sas: EVT_CONFIG_TGT dip != NULL:"
5466 			    " for tgt %d lun %d event %d",
5467 			    mrevt->tgt, mrevt->lun, mrevt->event));
5468 		}
5469 		break;
5470 	case MRSAS_EVT_UNCONFIG_TGT:
5471 		if (dip) {
5472 			if (i_ddi_devi_attached(dip)) {
5473 
5474 				pdip = ddi_get_parent(dip);
5475 
5476 				devname = kmem_zalloc(MAXNAMELEN + 1, KM_SLEEP);
5477 				(void) ddi_deviname(dip, devname);
5478 
5479 				(void) devfs_clean(pdip, devname + 1,
5480 				    DV_CLEAN_FORCE);
5481 				kmem_free(devname, MAXNAMELEN + 1);
5482 			}
5483 			(void) ndi_devi_offline(dip, NDI_DEVI_REMOVE);
5484 			con_log(CL_ANN1, (CE_NOTE,
5485 			    "mr_sas: EVT_UNCONFIG_TGT called:"
5486 			    " for tgt %d lun %d event %d",
5487 			    mrevt->tgt, mrevt->lun, mrevt->event));
5488 		} else {
5489 			con_log(CL_ANN1, (CE_NOTE,
5490 			    "mr_sas: EVT_UNCONFIG_TGT dip == NULL:"
5491 			    " for tgt %d lun %d event %d",
5492 			    mrevt->tgt, mrevt->lun, mrevt->event));
5493 		}
5494 		break;
5495 	}
5496 	kmem_free(mrevt, sizeof (struct mrsas_eventinfo));
5497 	ndi_devi_exit(instance->dip, circ1);
5498 }
5499 
5500 static int
5501 mrsas_mode_sense_build(struct scsi_pkt *pkt)
5502 {
5503 	union scsi_cdb		*cdbp;
5504 	uint16_t 		page_code;
5505 	struct scsa_cmd		*acmd;
5506 	struct buf		*bp;
5507 	struct mode_header	*modehdrp;
5508 
5509 	cdbp = (void *)pkt->pkt_cdbp;
5510 	page_code = cdbp->cdb_un.sg.scsi[0];
5511 	acmd = PKT2CMD(pkt);
5512 	bp = acmd->cmd_buf;
5513 	if ((!bp) && bp->b_un.b_addr && bp->b_bcount && acmd->cmd_dmacount) {
5514 		con_log(CL_ANN1, (CE_WARN, "Failing MODESENSE Command"));
5515 		/* ADD pkt statistics as Command failed. */
5516 		return (NULL);
5517 	}
5518 
5519 	bp_mapin(bp);
5520 	bzero(bp->b_un.b_addr, bp->b_bcount);
5521 
5522 	switch (page_code) {
5523 		case 0x3: {
5524 			struct mode_format *page3p = NULL;
5525 			modehdrp = (struct mode_header *)(bp->b_un.b_addr);
5526 			modehdrp->bdesc_length = MODE_BLK_DESC_LENGTH;
5527 
5528 			page3p = (void *)((caddr_t)modehdrp +
5529 			    MODE_HEADER_LENGTH + MODE_BLK_DESC_LENGTH);
5530 			page3p->mode_page.code = 0x3;
5531 			page3p->mode_page.length =
5532 			    (uchar_t)(sizeof (struct mode_format));
5533 			page3p->data_bytes_sect = 512;
5534 			page3p->sect_track = 63;
5535 			break;
5536 		}
5537 		case 0x4: {
5538 			struct mode_geometry *page4p = NULL;
5539 			modehdrp = (struct mode_header *)(bp->b_un.b_addr);
5540 			modehdrp->bdesc_length = MODE_BLK_DESC_LENGTH;
5541 
5542 			page4p = (void *)((caddr_t)modehdrp +
5543 			    MODE_HEADER_LENGTH + MODE_BLK_DESC_LENGTH);
5544 			page4p->mode_page.code = 0x4;
5545 			page4p->mode_page.length =
5546 			    (uchar_t)(sizeof (struct mode_geometry));
5547 			page4p->heads = 255;
5548 			page4p->rpm = 10000;
5549 			break;
5550 		}
5551 		default:
5552 			break;
5553 	}
5554 	return (NULL);
5555 }
5556