xref: /illumos-gate/usr/src/uts/common/io/mr_sas/mr_sas.c (revision 581cede61ac9c14d8d4ea452562a567189eead78)
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/fs/dv_node.h>	/* devfs_clean */
69 
70 #include "mr_sas.h"
71 
72 /*
73  * FMA header files
74  */
75 #include <sys/ddifm.h>
76 #include <sys/fm/protocol.h>
77 #include <sys/fm/util.h>
78 #include <sys/fm/io/ddi.h>
79 
80 /*
81  * Local static data
82  */
83 static void	*mrsas_state = NULL;
84 static int 	debug_level_g = CL_NONE;
85 boolean_t mrsas_relaxed_ordering = B_TRUE;
86 
87 #pragma weak scsi_hba_open
88 #pragma weak scsi_hba_close
89 #pragma weak scsi_hba_ioctl
90 
91 static ddi_dma_attr_t mrsas_generic_dma_attr = {
92 	DMA_ATTR_V0,		/* dma_attr_version */
93 	0,			/* low DMA address range */
94 	0xFFFFFFFFU,		/* high DMA address range */
95 	0xFFFFFFFFU,		/* DMA counter register  */
96 	8,			/* DMA address alignment */
97 	0x07,			/* DMA burstsizes  */
98 	1,			/* min DMA size */
99 	0xFFFFFFFFU,		/* max DMA size */
100 	0xFFFFFFFFU,		/* segment boundary */
101 	MRSAS_MAX_SGE_CNT,	/* dma_attr_sglen */
102 	512,			/* granularity of device */
103 	0			/* bus specific DMA flags */
104 };
105 
106 int32_t mrsas_max_cap_maxxfer = 0x1000000;
107 
108 /*
109  * cb_ops contains base level routines
110  */
111 static struct cb_ops mrsas_cb_ops = {
112 	mrsas_open,		/* open */
113 	mrsas_close,		/* close */
114 	nodev,			/* strategy */
115 	nodev,			/* print */
116 	nodev,			/* dump */
117 	nodev,			/* read */
118 	nodev,			/* write */
119 	mrsas_ioctl,		/* ioctl */
120 	nodev,			/* devmap */
121 	nodev,			/* mmap */
122 	nodev,			/* segmap */
123 	nochpoll,		/* poll */
124 	nodev,			/* cb_prop_op */
125 	0,			/* streamtab  */
126 	D_NEW | D_HOTPLUG,	/* cb_flag */
127 	CB_REV,			/* cb_rev */
128 	nodev,			/* cb_aread */
129 	nodev			/* cb_awrite */
130 };
131 
132 /*
133  * dev_ops contains configuration routines
134  */
135 static struct dev_ops mrsas_ops = {
136 	DEVO_REV,		/* rev, */
137 	0,			/* refcnt */
138 	mrsas_getinfo,		/* getinfo */
139 	nulldev,		/* identify */
140 	nulldev,		/* probe */
141 	mrsas_attach,		/* attach */
142 	mrsas_detach,		/* detach */
143 	mrsas_reset,		/* reset */
144 	&mrsas_cb_ops,		/* char/block ops */
145 	NULL,			/* bus ops */
146 	NULL,			/* power */
147 	ddi_quiesce_not_supported,		/* quiesce */
148 };
149 
150 char _depends_on[] = "misc/scsi";
151 
152 static struct modldrv modldrv = {
153 	&mod_driverops,		/* module type - driver */
154 	MRSAS_VERSION,
155 	&mrsas_ops,		/* driver ops */
156 };
157 
158 static struct modlinkage modlinkage = {
159 	MODREV_1,	/* ml_rev - must be MODREV_1 */
160 	&modldrv,	/* ml_linkage */
161 	NULL		/* end of driver linkage */
162 };
163 
164 static struct ddi_device_acc_attr endian_attr = {
165 	DDI_DEVICE_ATTR_V0,
166 	DDI_STRUCTURE_LE_ACC,
167 	DDI_STRICTORDER_ACC
168 };
169 
170 
171 /*
172  * ************************************************************************** *
173  *                                                                            *
174  *         common entry points - for loadable kernel modules                  *
175  *                                                                            *
176  * ************************************************************************** *
177  */
178 
179 int
180 _init(void)
181 {
182 	int ret;
183 
184 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
185 
186 	ret = ddi_soft_state_init(&mrsas_state,
187 	    sizeof (struct mrsas_instance), 0);
188 
189 	if (ret != DDI_SUCCESS) {
190 		con_log(CL_ANN, (CE_WARN, "mr_sas: could not init state"));
191 		return (ret);
192 	}
193 
194 	if ((ret = scsi_hba_init(&modlinkage)) != DDI_SUCCESS) {
195 		con_log(CL_ANN, (CE_WARN, "mr_sas: could not init scsi hba"));
196 		ddi_soft_state_fini(&mrsas_state);
197 		return (ret);
198 	}
199 
200 	ret = mod_install(&modlinkage);
201 
202 	if (ret != DDI_SUCCESS) {
203 		con_log(CL_ANN, (CE_WARN, "mr_sas: mod_install failed"));
204 		scsi_hba_fini(&modlinkage);
205 		ddi_soft_state_fini(&mrsas_state);
206 	}
207 
208 	return (ret);
209 }
210 
211 int
212 _info(struct modinfo *modinfop)
213 {
214 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
215 
216 	return (mod_info(&modlinkage, modinfop));
217 }
218 
219 int
220 _fini(void)
221 {
222 	int ret;
223 
224 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
225 
226 	if ((ret = mod_remove(&modlinkage)) != DDI_SUCCESS)
227 		return (ret);
228 
229 	scsi_hba_fini(&modlinkage);
230 
231 	ddi_soft_state_fini(&mrsas_state);
232 
233 	return (ret);
234 }
235 
236 
237 /*
238  * ************************************************************************** *
239  *                                                                            *
240  *               common entry points - for autoconfiguration                  *
241  *                                                                            *
242  * ************************************************************************** *
243  */
244 
245 static int
246 mrsas_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
247 {
248 	int		instance_no;
249 	int		nregs;
250 	uint8_t		added_isr_f = 0;
251 	uint8_t		added_soft_isr_f = 0;
252 	uint8_t		create_devctl_node_f = 0;
253 	uint8_t		create_scsi_node_f = 0;
254 	uint8_t		create_ioc_node_f = 0;
255 	uint8_t		tran_alloc_f = 0;
256 	uint8_t 	irq;
257 	uint16_t	vendor_id;
258 	uint16_t	device_id;
259 	uint16_t	subsysvid;
260 	uint16_t	subsysid;
261 	uint16_t	command;
262 	off_t		reglength = 0;
263 	int		intr_types = 0;
264 	char		*data;
265 	int		msi_enable = 0;
266 
267 	scsi_hba_tran_t		*tran;
268 	ddi_dma_attr_t  tran_dma_attr;
269 	struct mrsas_instance	*instance;
270 
271 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
272 
273 	/* CONSTCOND */
274 	ASSERT(NO_COMPETING_THREADS);
275 
276 	instance_no = ddi_get_instance(dip);
277 
278 	/*
279 	 * check to see whether this device is in a DMA-capable slot.
280 	 */
281 	if (ddi_slaveonly(dip) == DDI_SUCCESS) {
282 		con_log(CL_ANN, (CE_WARN,
283 		    "mr_sas%d: Device in slave-only slot, unused",
284 		    instance_no));
285 		return (DDI_FAILURE);
286 	}
287 
288 	switch (cmd) {
289 		case DDI_ATTACH:
290 			con_log(CL_DLEVEL1, (CE_NOTE, "mr_sas: DDI_ATTACH"));
291 			/* allocate the soft state for the instance */
292 			if (ddi_soft_state_zalloc(mrsas_state, instance_no)
293 			    != DDI_SUCCESS) {
294 				con_log(CL_ANN, (CE_WARN,
295 				    "mr_sas%d: Failed to allocate soft state",
296 				    instance_no));
297 
298 				return (DDI_FAILURE);
299 			}
300 
301 			instance = (struct mrsas_instance *)ddi_get_soft_state
302 			    (mrsas_state, instance_no);
303 
304 			if (instance == NULL) {
305 				con_log(CL_ANN, (CE_WARN,
306 				    "mr_sas%d: Bad soft state", instance_no));
307 
308 				ddi_soft_state_free(mrsas_state, instance_no);
309 
310 				return (DDI_FAILURE);
311 			}
312 
313 			bzero((caddr_t)instance,
314 			    sizeof (struct mrsas_instance));
315 
316 			instance->func_ptr = kmem_zalloc(
317 			    sizeof (struct mrsas_func_ptr), KM_SLEEP);
318 			ASSERT(instance->func_ptr);
319 
320 			/* Setup the PCI configuration space handles */
321 			if (pci_config_setup(dip, &instance->pci_handle) !=
322 			    DDI_SUCCESS) {
323 				con_log(CL_ANN, (CE_WARN,
324 				    "mr_sas%d: pci config setup failed ",
325 				    instance_no));
326 
327 				kmem_free(instance->func_ptr,
328 				    sizeof (struct mrsas_func_ptr));
329 				ddi_soft_state_free(mrsas_state, instance_no);
330 
331 				return (DDI_FAILURE);
332 			}
333 
334 			if (ddi_dev_nregs(dip, &nregs) != DDI_SUCCESS) {
335 				con_log(CL_ANN, (CE_WARN,
336 				    "mr_sas: failed to get registers."));
337 
338 				pci_config_teardown(&instance->pci_handle);
339 				kmem_free(instance->func_ptr,
340 				    sizeof (struct mrsas_func_ptr));
341 				ddi_soft_state_free(mrsas_state, instance_no);
342 
343 				return (DDI_FAILURE);
344 			}
345 
346 			vendor_id = pci_config_get16(instance->pci_handle,
347 			    PCI_CONF_VENID);
348 			device_id = pci_config_get16(instance->pci_handle,
349 			    PCI_CONF_DEVID);
350 
351 			subsysvid = pci_config_get16(instance->pci_handle,
352 			    PCI_CONF_SUBVENID);
353 			subsysid = pci_config_get16(instance->pci_handle,
354 			    PCI_CONF_SUBSYSID);
355 
356 			pci_config_put16(instance->pci_handle, PCI_CONF_COMM,
357 			    (pci_config_get16(instance->pci_handle,
358 			    PCI_CONF_COMM) | PCI_COMM_ME));
359 			irq = pci_config_get8(instance->pci_handle,
360 			    PCI_CONF_ILINE);
361 
362 			con_log(CL_DLEVEL1, (CE_CONT, "mr_sas%d: "
363 			    "0x%x:0x%x 0x%x:0x%x, irq:%d drv-ver:%s",
364 			    instance_no, vendor_id, device_id, subsysvid,
365 			    subsysid, irq, MRSAS_VERSION));
366 
367 			/* enable bus-mastering */
368 			command = pci_config_get16(instance->pci_handle,
369 			    PCI_CONF_COMM);
370 
371 			if (!(command & PCI_COMM_ME)) {
372 				command |= PCI_COMM_ME;
373 
374 				pci_config_put16(instance->pci_handle,
375 				    PCI_CONF_COMM, command);
376 
377 				con_log(CL_ANN, (CE_CONT, "mr_sas%d: "
378 				    "enable bus-mastering", instance_no));
379 			} else {
380 				con_log(CL_DLEVEL1, (CE_CONT, "mr_sas%d: "
381 				"bus-mastering already set", instance_no));
382 			}
383 
384 			/* initialize function pointers */
385 			if ((device_id == PCI_DEVICE_ID_LSI_2108VDE) ||
386 			    (device_id == PCI_DEVICE_ID_LSI_2108V)) {
387 				con_log(CL_DLEVEL1, (CE_CONT, "mr_sas%d: "
388 				    "2108V/DE detected", instance_no));
389 				instance->func_ptr->read_fw_status_reg =
390 				    read_fw_status_reg_ppc;
391 				instance->func_ptr->issue_cmd = issue_cmd_ppc;
392 				instance->func_ptr->issue_cmd_in_sync_mode =
393 				    issue_cmd_in_sync_mode_ppc;
394 				instance->func_ptr->issue_cmd_in_poll_mode =
395 				    issue_cmd_in_poll_mode_ppc;
396 				instance->func_ptr->enable_intr =
397 				    enable_intr_ppc;
398 				instance->func_ptr->disable_intr =
399 				    disable_intr_ppc;
400 				instance->func_ptr->intr_ack = intr_ack_ppc;
401 			} else {
402 				con_log(CL_ANN, (CE_WARN,
403 				    "mr_sas: Invalid device detected"));
404 
405 				pci_config_teardown(&instance->pci_handle);
406 				kmem_free(instance->func_ptr,
407 				    sizeof (struct mrsas_func_ptr));
408 				ddi_soft_state_free(mrsas_state, instance_no);
409 
410 				return (DDI_FAILURE);
411 			}
412 
413 			instance->baseaddress = pci_config_get32(
414 			    instance->pci_handle, PCI_CONF_BASE0);
415 			instance->baseaddress &= 0x0fffc;
416 
417 			instance->dip		= dip;
418 			instance->vendor_id	= vendor_id;
419 			instance->device_id	= device_id;
420 			instance->subsysvid	= subsysvid;
421 			instance->subsysid	= subsysid;
422 			instance->instance	= instance_no;
423 
424 			/* Initialize FMA */
425 			instance->fm_capabilities = ddi_prop_get_int(
426 			    DDI_DEV_T_ANY, instance->dip, DDI_PROP_DONTPASS,
427 			    "fm-capable", DDI_FM_EREPORT_CAPABLE |
428 			    DDI_FM_ACCCHK_CAPABLE | DDI_FM_DMACHK_CAPABLE
429 			    | DDI_FM_ERRCB_CAPABLE);
430 
431 			mrsas_fm_init(instance);
432 
433 			/* Initialize Interrupts */
434 			if ((ddi_dev_regsize(instance->dip,
435 			    REGISTER_SET_IO_2108, &reglength) != DDI_SUCCESS) ||
436 			    reglength < MINIMUM_MFI_MEM_SZ) {
437 				return (DDI_FAILURE);
438 			}
439 			if (reglength > DEFAULT_MFI_MEM_SZ) {
440 				reglength = DEFAULT_MFI_MEM_SZ;
441 				con_log(CL_DLEVEL1, (CE_NOTE,
442 				    "mr_sas: register length to map is "
443 				    "0x%lx bytes", reglength));
444 			}
445 			if (ddi_regs_map_setup(instance->dip,
446 			    REGISTER_SET_IO_2108, &instance->regmap, 0,
447 			    reglength, &endian_attr, &instance->regmap_handle)
448 			    != DDI_SUCCESS) {
449 				con_log(CL_ANN, (CE_NOTE,
450 				    "mr_sas: couldn't map control registers"));
451 				goto fail_attach;
452 			}
453 
454 			/*
455 			 * Disable Interrupt Now.
456 			 * Setup Software interrupt
457 			 */
458 			instance->func_ptr->disable_intr(instance);
459 
460 			msi_enable = 0;
461 			if (ddi_prop_lookup_string(DDI_DEV_T_ANY, dip, 0,
462 			    "mrsas-enable-msi", &data) == DDI_SUCCESS) {
463 				if (strncmp(data, "yes", 3) == 0) {
464 					msi_enable = 1;
465 					con_log(CL_ANN, (CE_WARN,
466 					    "msi_enable = %d ENABLED",
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 *)instance;
775 			rval = DDI_SUCCESS;
776 			break;
777 		default:
778 			*resultp = NULL;
779 			rval = DDI_FAILURE;
780 	}
781 
782 	return (rval);
783 }
784 
785 static int
786 mrsas_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
787 {
788 	int	instance_no;
789 
790 	struct mrsas_instance	*instance;
791 
792 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
793 
794 	/* CONSTCOND */
795 	ASSERT(NO_COMPETING_THREADS);
796 
797 	instance_no = ddi_get_instance(dip);
798 
799 	instance = (struct mrsas_instance *)ddi_get_soft_state(mrsas_state,
800 	    instance_no);
801 
802 	if (!instance) {
803 		con_log(CL_ANN, (CE_WARN,
804 		    "mr_sas:%d could not get instance in detach",
805 		    instance_no));
806 
807 		return (DDI_FAILURE);
808 	}
809 
810 	con_log(CL_ANN, (CE_NOTE,
811 	    "mr_sas%d: detaching device 0x%4x:0x%4x:0x%4x:0x%4x",
812 	    instance_no, instance->vendor_id, instance->device_id,
813 	    instance->subsysvid, instance->subsysid));
814 
815 	switch (cmd) {
816 	case DDI_DETACH:
817 		con_log(CL_ANN, (CE_NOTE,
818 		    "mrsas_detach: DDI_DETACH"));
819 
820 		if (scsi_hba_detach(dip) != DDI_SUCCESS) {
821 			con_log(CL_ANN, (CE_WARN,
822 			    "mr_sas:%d failed to detach",
823 			    instance_no));
824 
825 			return (DDI_FAILURE);
826 		}
827 
828 		scsi_hba_tran_free(instance->tran);
829 
830 		flush_cache(instance);
831 
832 		if (abort_aen_cmd(instance, instance->aen_cmd)) {
833 			con_log(CL_ANN, (CE_WARN, "mrsas_detach: "
834 			    "failed to abort prevous AEN command"));
835 
836 			return (DDI_FAILURE);
837 		}
838 
839 		instance->func_ptr->disable_intr(instance);
840 
841 		if (instance->isr_level == HIGH_LEVEL_INTR) {
842 			ddi_remove_softintr(instance->soft_intr_id);
843 		}
844 
845 		mrsas_rem_intrs(instance);
846 
847 		if (instance->taskq) {
848 			ddi_taskq_destroy(instance->taskq);
849 		}
850 		kmem_free(instance->mr_ld_list, MRDRV_MAX_LD
851 		    * sizeof (struct mrsas_ld));
852 		free_space_for_mfi(instance);
853 
854 		mrsas_fm_fini(instance);
855 
856 		pci_config_teardown(&instance->pci_handle);
857 
858 		kmem_free(instance->func_ptr,
859 		    sizeof (struct mrsas_func_ptr));
860 
861 		ddi_soft_state_free(mrsas_state, instance_no);
862 		break;
863 	case DDI_PM_SUSPEND:
864 		con_log(CL_ANN, (CE_NOTE,
865 		    "mrsas_detach: DDI_PM_SUSPEND"));
866 
867 		break;
868 	case DDI_SUSPEND:
869 		con_log(CL_ANN, (CE_NOTE,
870 		    "mrsas_detach: DDI_SUSPEND"));
871 
872 		break;
873 	default:
874 		con_log(CL_ANN, (CE_WARN,
875 		    "invalid detach command:0x%x", cmd));
876 		return (DDI_FAILURE);
877 	}
878 
879 	return (DDI_SUCCESS);
880 }
881 
882 /*
883  * ************************************************************************** *
884  *                                                                            *
885  *             common entry points - for character driver types               *
886  *                                                                            *
887  * ************************************************************************** *
888  */
889 static  int
890 mrsas_open(dev_t *dev, int openflags, int otyp, cred_t *credp)
891 {
892 	int	rval = 0;
893 
894 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
895 
896 	/* Check root permissions */
897 	if (drv_priv(credp) != 0) {
898 		con_log(CL_ANN, (CE_WARN,
899 		    "mr_sas: Non-root ioctl access denied!"));
900 		return (EPERM);
901 	}
902 
903 	/* Verify we are being opened as a character device */
904 	if (otyp != OTYP_CHR) {
905 		con_log(CL_ANN, (CE_WARN,
906 		    "mr_sas: ioctl node must be a char node"));
907 		return (EINVAL);
908 	}
909 
910 	if (ddi_get_soft_state(mrsas_state, MINOR2INST(getminor(*dev)))
911 	    == NULL) {
912 		return (ENXIO);
913 	}
914 
915 	if (scsi_hba_open) {
916 		rval = scsi_hba_open(dev, openflags, otyp, credp);
917 	}
918 
919 	return (rval);
920 }
921 
922 static  int
923 mrsas_close(dev_t dev, int openflags, int otyp, cred_t *credp)
924 {
925 	int	rval = 0;
926 
927 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
928 
929 	/* no need for locks! */
930 
931 	if (scsi_hba_close) {
932 		rval = scsi_hba_close(dev, openflags, otyp, credp);
933 	}
934 
935 	return (rval);
936 }
937 
938 static int
939 mrsas_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *credp,
940     int *rvalp)
941 {
942 	int	rval = 0;
943 
944 	struct mrsas_instance	*instance;
945 	struct mrsas_ioctl	*ioctl;
946 	struct mrsas_aen	aen;
947 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
948 
949 	instance = ddi_get_soft_state(mrsas_state, MINOR2INST(getminor(dev)));
950 
951 	if (instance == NULL) {
952 		/* invalid minor number */
953 		con_log(CL_ANN, (CE_WARN, "mr_sas: adapter not found."));
954 		return (ENXIO);
955 	}
956 
957 	ioctl = (struct mrsas_ioctl *)kmem_zalloc(sizeof (struct mrsas_ioctl),
958 	    KM_SLEEP);
959 	ASSERT(ioctl);
960 
961 	switch ((uint_t)cmd) {
962 		case MRSAS_IOCTL_FIRMWARE:
963 			if (ddi_copyin((void *)arg, ioctl,
964 			    sizeof (struct mrsas_ioctl), mode)) {
965 				con_log(CL_ANN, (CE_WARN, "mrsas_ioctl: "
966 				    "ERROR IOCTL copyin"));
967 				kmem_free(ioctl, sizeof (struct mrsas_ioctl));
968 				return (EFAULT);
969 			}
970 
971 			if (ioctl->control_code == MRSAS_DRIVER_IOCTL_COMMON) {
972 				rval = handle_drv_ioctl(instance, ioctl, mode);
973 			} else {
974 				rval = handle_mfi_ioctl(instance, ioctl, mode);
975 			}
976 
977 			if (ddi_copyout((void *)ioctl, (void *)arg,
978 			    (sizeof (struct mrsas_ioctl) - 1), mode)) {
979 				con_log(CL_ANN, (CE_WARN,
980 				    "mrsas_ioctl: copy_to_user failed"));
981 				rval = 1;
982 			}
983 
984 			break;
985 		case MRSAS_IOCTL_AEN:
986 			if (ddi_copyin((void *) arg, &aen,
987 			    sizeof (struct mrsas_aen), mode)) {
988 				con_log(CL_ANN, (CE_WARN,
989 				    "mrsas_ioctl: ERROR AEN copyin"));
990 				kmem_free(ioctl, sizeof (struct mrsas_ioctl));
991 				return (EFAULT);
992 			}
993 
994 			rval = handle_mfi_aen(instance, &aen);
995 
996 			if (ddi_copyout((void *) &aen, (void *)arg,
997 			    sizeof (struct mrsas_aen), mode)) {
998 				con_log(CL_ANN, (CE_WARN,
999 				    "mrsas_ioctl: copy_to_user failed"));
1000 				rval = 1;
1001 			}
1002 
1003 			break;
1004 		default:
1005 			rval = scsi_hba_ioctl(dev, cmd, arg,
1006 			    mode, credp, rvalp);
1007 
1008 			con_log(CL_DLEVEL1, (CE_NOTE, "mrsas_ioctl: "
1009 			    "scsi_hba_ioctl called, ret = %x.", rval));
1010 	}
1011 
1012 	kmem_free(ioctl, sizeof (struct mrsas_ioctl));
1013 	return (rval);
1014 }
1015 
1016 /*
1017  * ************************************************************************** *
1018  *                                                                            *
1019  *               common entry points - for block driver types                 *
1020  *                                                                            *
1021  * ************************************************************************** *
1022  */
1023 /*ARGSUSED*/
1024 static int
1025 mrsas_reset(dev_info_t *dip, ddi_reset_cmd_t cmd)
1026 {
1027 	int	instance_no;
1028 
1029 	struct mrsas_instance	*instance;
1030 
1031 	instance_no = ddi_get_instance(dip);
1032 	instance = (struct mrsas_instance *)ddi_get_soft_state
1033 	    (mrsas_state, instance_no);
1034 
1035 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1036 
1037 	if (!instance) {
1038 		con_log(CL_ANN, (CE_WARN, "mr_sas:%d could not get adapter "
1039 		    "in reset", instance_no));
1040 		return (DDI_FAILURE);
1041 	}
1042 
1043 	instance->func_ptr->disable_intr(instance);
1044 
1045 	con_log(CL_ANN1, (CE_NOTE, "flushing cache for instance %d",
1046 	    instance_no));
1047 
1048 	flush_cache(instance);
1049 
1050 	return (DDI_SUCCESS);
1051 }
1052 
1053 
1054 /*
1055  * ************************************************************************** *
1056  *                                                                            *
1057  *                          entry points (SCSI HBA)                           *
1058  *                                                                            *
1059  * ************************************************************************** *
1060  */
1061 /*ARGSUSED*/
1062 static int
1063 mrsas_tran_tgt_init(dev_info_t *hba_dip, dev_info_t *tgt_dip,
1064 		scsi_hba_tran_t *tran, struct scsi_device *sd)
1065 {
1066 	struct mrsas_instance *instance;
1067 	uint16_t tgt = sd->sd_address.a_target;
1068 	uint8_t lun = sd->sd_address.a_lun;
1069 
1070 	con_log(CL_ANN1, (CE_NOTE, "mrsas_tgt_init target %d lun %d",
1071 	    tgt, lun));
1072 
1073 	instance = ADDR2MR(&sd->sd_address);
1074 
1075 	if (ndi_dev_is_persistent_node(tgt_dip) == 0) {
1076 		(void) ndi_merge_node(tgt_dip, mrsas_name_node);
1077 		ddi_set_name_addr(tgt_dip, NULL);
1078 
1079 		con_log(CL_ANN1, (CE_NOTE, "mrsas_tgt_init in "
1080 		    "ndi_dev_is_persistent_node DDI_FAILURE t = %d l = %d",
1081 		    tgt, lun));
1082 		return (DDI_FAILURE);
1083 	}
1084 
1085 	con_log(CL_ANN1, (CE_NOTE, "mrsas_tgt_init dev_dip %p tgt_dip %p",
1086 	    (void *)instance->mr_ld_list[tgt].dip, (void *)tgt_dip));
1087 
1088 	if (tgt < MRDRV_MAX_LD && lun == 0) {
1089 		if (instance->mr_ld_list[tgt].dip == NULL &&
1090 		    strcmp(ddi_driver_name(sd->sd_dev), "sd") == 0) {
1091 			instance->mr_ld_list[tgt].dip = tgt_dip;
1092 			instance->mr_ld_list[tgt].lun_type = MRSAS_LD_LUN;
1093 		}
1094 	}
1095 	return (DDI_SUCCESS);
1096 }
1097 
1098 /*ARGSUSED*/
1099 static void
1100 mrsas_tran_tgt_free(dev_info_t *hba_dip, dev_info_t *tgt_dip,
1101     scsi_hba_tran_t *hba_tran, struct scsi_device *sd)
1102 {
1103 	struct mrsas_instance *instance;
1104 	int tgt = sd->sd_address.a_target;
1105 	int lun = sd->sd_address.a_lun;
1106 
1107 	instance = ADDR2MR(&sd->sd_address);
1108 
1109 	con_log(CL_ANN1, (CE_NOTE, "tgt_free t = %d l = %d", tgt, lun));
1110 
1111 	if (tgt < MRDRV_MAX_LD && lun == 0) {
1112 		if (instance->mr_ld_list[tgt].dip == tgt_dip) {
1113 			instance->mr_ld_list[tgt].dip = NULL;
1114 		}
1115 	}
1116 }
1117 
1118 static dev_info_t *
1119 mrsas_find_child(struct mrsas_instance *instance, uint16_t tgt, uint8_t lun)
1120 {
1121 	dev_info_t *child = NULL;
1122 	char addr[SCSI_MAXNAMELEN];
1123 	char tmp[MAXNAMELEN];
1124 
1125 	(void) sprintf(addr, "%x,%x", tgt, lun);
1126 	for (child = ddi_get_child(instance->dip); child;
1127 	    child = ddi_get_next_sibling(child)) {
1128 
1129 		if (mrsas_name_node(child, tmp, MAXNAMELEN) !=
1130 		    DDI_SUCCESS) {
1131 			continue;
1132 		}
1133 
1134 		if (strcmp(addr, tmp) == 0) {
1135 			break;
1136 		}
1137 	}
1138 	con_log(CL_ANN1, (CE_NOTE, "mrsas_find_child: return child = %p",
1139 	    (void *)child));
1140 	return (child);
1141 }
1142 
1143 static int
1144 mrsas_name_node(dev_info_t *dip, char *name, int len)
1145 {
1146 	int tgt, lun;
1147 
1148 	tgt = ddi_prop_get_int(DDI_DEV_T_ANY, dip,
1149 	    DDI_PROP_DONTPASS, "target", -1);
1150 	con_log(CL_ANN1, (CE_NOTE,
1151 	    "mrsas_name_node: dip %p tgt %d", (void *)dip, tgt));
1152 	if (tgt == -1) {
1153 		return (DDI_FAILURE);
1154 	}
1155 	lun = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
1156 	    "lun", -1);
1157 	con_log(CL_ANN1,
1158 	    (CE_NOTE, "mrsas_name_node: tgt %d lun %d", tgt, lun));
1159 	if (lun == -1) {
1160 		return (DDI_FAILURE);
1161 	}
1162 	(void) snprintf(name, len, "%x,%x", tgt, lun);
1163 	return (DDI_SUCCESS);
1164 }
1165 
1166 static struct scsi_pkt *
1167 mrsas_tran_init_pkt(struct scsi_address *ap, register struct scsi_pkt *pkt,
1168 	struct buf *bp, int cmdlen, int statuslen, int tgtlen,
1169 	int flags, int (*callback)(), caddr_t arg)
1170 {
1171 	struct scsa_cmd	*acmd;
1172 	struct mrsas_instance	*instance;
1173 	struct scsi_pkt	*new_pkt;
1174 
1175 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1176 
1177 	instance = ADDR2MR(ap);
1178 
1179 	/* step #1 : pkt allocation */
1180 	if (pkt == NULL) {
1181 		pkt = scsi_hba_pkt_alloc(instance->dip, ap, cmdlen, statuslen,
1182 		    tgtlen, sizeof (struct scsa_cmd), callback, arg);
1183 		if (pkt == NULL) {
1184 			return (NULL);
1185 		}
1186 
1187 		acmd = PKT2CMD(pkt);
1188 
1189 		/*
1190 		 * Initialize the new pkt - we redundantly initialize
1191 		 * all the fields for illustrative purposes.
1192 		 */
1193 		acmd->cmd_pkt		= pkt;
1194 		acmd->cmd_flags		= 0;
1195 		acmd->cmd_scblen	= statuslen;
1196 		acmd->cmd_cdblen	= cmdlen;
1197 		acmd->cmd_dmahandle	= NULL;
1198 		acmd->cmd_ncookies	= 0;
1199 		acmd->cmd_cookie	= 0;
1200 		acmd->cmd_cookiecnt	= 0;
1201 		acmd->cmd_nwin		= 0;
1202 
1203 		pkt->pkt_address	= *ap;
1204 		pkt->pkt_comp		= (void (*)())NULL;
1205 		pkt->pkt_flags		= 0;
1206 		pkt->pkt_time		= 0;
1207 		pkt->pkt_resid		= 0;
1208 		pkt->pkt_state		= 0;
1209 		pkt->pkt_statistics	= 0;
1210 		pkt->pkt_reason		= 0;
1211 		new_pkt			= pkt;
1212 	} else {
1213 		acmd = PKT2CMD(pkt);
1214 		new_pkt = NULL;
1215 	}
1216 
1217 	/* step #2 : dma allocation/move */
1218 	if (bp && bp->b_bcount != 0) {
1219 		if (acmd->cmd_dmahandle == NULL) {
1220 			if (mrsas_dma_alloc(instance, pkt, bp, flags,
1221 			    callback) == DDI_FAILURE) {
1222 				if (new_pkt) {
1223 					scsi_hba_pkt_free(ap, new_pkt);
1224 				}
1225 				return ((struct scsi_pkt *)NULL);
1226 			}
1227 		} else {
1228 			if (mrsas_dma_move(instance, pkt, bp) == DDI_FAILURE) {
1229 				return ((struct scsi_pkt *)NULL);
1230 			}
1231 		}
1232 	}
1233 
1234 	return (pkt);
1235 }
1236 
1237 static int
1238 mrsas_tran_start(struct scsi_address *ap, register struct scsi_pkt *pkt)
1239 {
1240 	uchar_t 	cmd_done = 0;
1241 
1242 	struct mrsas_instance	*instance = ADDR2MR(ap);
1243 	struct mrsas_cmd	*cmd;
1244 
1245 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d:SCSI CDB[0]=0x%x",
1246 	    __func__, __LINE__, pkt->pkt_cdbp[0]));
1247 
1248 	pkt->pkt_reason	= CMD_CMPLT;
1249 	*pkt->pkt_scbp = STATUS_GOOD; /* clear arq scsi_status */
1250 
1251 	cmd = build_cmd(instance, ap, pkt, &cmd_done);
1252 
1253 	/*
1254 	 * Check if the command is already completed by the mrsas_build_cmd()
1255 	 * routine. In which case the busy_flag would be clear and scb will be
1256 	 * NULL and appropriate reason provided in pkt_reason field
1257 	 */
1258 	if (cmd_done) {
1259 		pkt->pkt_reason = CMD_CMPLT;
1260 		pkt->pkt_scbp[0] = STATUS_GOOD;
1261 		pkt->pkt_state |= STATE_GOT_BUS | STATE_GOT_TARGET
1262 		    | STATE_SENT_CMD;
1263 		if (((pkt->pkt_flags & FLAG_NOINTR) == 0) && pkt->pkt_comp) {
1264 			(*pkt->pkt_comp)(pkt);
1265 		}
1266 
1267 		return (TRAN_ACCEPT);
1268 	}
1269 
1270 	if (cmd == NULL) {
1271 		return (TRAN_BUSY);
1272 	}
1273 
1274 	if ((pkt->pkt_flags & FLAG_NOINTR) == 0) {
1275 		if (instance->fw_outstanding > instance->max_fw_cmds) {
1276 			con_log(CL_ANN, (CE_CONT, "mr_sas:Firmware busy"));
1277 			return_mfi_pkt(instance, cmd);
1278 			return (TRAN_BUSY);
1279 		}
1280 
1281 		/* Synchronize the Cmd frame for the controller */
1282 		(void) ddi_dma_sync(cmd->frame_dma_obj.dma_handle, 0, 0,
1283 		    DDI_DMA_SYNC_FORDEV);
1284 
1285 		instance->func_ptr->issue_cmd(cmd, instance);
1286 
1287 	} else {
1288 		struct mrsas_header *hdr = &cmd->frame->hdr;
1289 
1290 		cmd->sync_cmd = MRSAS_TRUE;
1291 
1292 		instance->func_ptr-> issue_cmd_in_poll_mode(instance, cmd);
1293 
1294 		pkt->pkt_reason		= CMD_CMPLT;
1295 		pkt->pkt_statistics	= 0;
1296 		pkt->pkt_state |= STATE_XFERRED_DATA | STATE_GOT_STATUS;
1297 
1298 		switch (ddi_get8(cmd->frame_dma_obj.acc_handle,
1299 		    &hdr->cmd_status)) {
1300 		case MFI_STAT_OK:
1301 			pkt->pkt_scbp[0] = STATUS_GOOD;
1302 			break;
1303 
1304 		case MFI_STAT_SCSI_DONE_WITH_ERROR:
1305 
1306 			pkt->pkt_reason	= CMD_CMPLT;
1307 			pkt->pkt_statistics = 0;
1308 
1309 			((struct scsi_status *)pkt->pkt_scbp)->sts_chk = 1;
1310 			break;
1311 
1312 		case MFI_STAT_DEVICE_NOT_FOUND:
1313 			pkt->pkt_reason		= CMD_DEV_GONE;
1314 			pkt->pkt_statistics	= STAT_DISCON;
1315 			break;
1316 
1317 		default:
1318 			((struct scsi_status *)pkt->pkt_scbp)->sts_busy = 1;
1319 		}
1320 
1321 		return_mfi_pkt(instance, cmd);
1322 		(void) mrsas_common_check(instance, cmd);
1323 
1324 		if (pkt->pkt_comp) {
1325 			(*pkt->pkt_comp)(pkt);
1326 		}
1327 
1328 	}
1329 
1330 	return (TRAN_ACCEPT);
1331 }
1332 
1333 /*ARGSUSED*/
1334 static int
1335 mrsas_tran_abort(struct scsi_address *ap, struct scsi_pkt *pkt)
1336 {
1337 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1338 
1339 	/* abort command not supported by H/W */
1340 
1341 	return (DDI_FAILURE);
1342 }
1343 
1344 /*ARGSUSED*/
1345 static int
1346 mrsas_tran_reset(struct scsi_address *ap, int level)
1347 {
1348 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1349 
1350 	/* reset command not supported by H/W */
1351 
1352 	return (DDI_FAILURE);
1353 
1354 }
1355 
1356 /*ARGSUSED*/
1357 static int
1358 mrsas_tran_getcap(struct scsi_address *ap, char *cap, int whom)
1359 {
1360 	int	rval = 0;
1361 
1362 	struct mrsas_instance	*instance = ADDR2MR(ap);
1363 
1364 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1365 
1366 	/* we do allow inquiring about capabilities for other targets */
1367 	if (cap == NULL) {
1368 		return (-1);
1369 	}
1370 
1371 	switch (scsi_hba_lookup_capstr(cap)) {
1372 	case SCSI_CAP_DMA_MAX:
1373 		/* Limit to 16MB max transfer */
1374 		rval = mrsas_max_cap_maxxfer;
1375 		break;
1376 	case SCSI_CAP_MSG_OUT:
1377 		rval = 1;
1378 		break;
1379 	case SCSI_CAP_DISCONNECT:
1380 		rval = 0;
1381 		break;
1382 	case SCSI_CAP_SYNCHRONOUS:
1383 		rval = 0;
1384 		break;
1385 	case SCSI_CAP_WIDE_XFER:
1386 		rval = 1;
1387 		break;
1388 	case SCSI_CAP_TAGGED_QING:
1389 		rval = 1;
1390 		break;
1391 	case SCSI_CAP_UNTAGGED_QING:
1392 		rval = 1;
1393 		break;
1394 	case SCSI_CAP_PARITY:
1395 		rval = 1;
1396 		break;
1397 	case SCSI_CAP_INITIATOR_ID:
1398 		rval = instance->init_id;
1399 		break;
1400 	case SCSI_CAP_ARQ:
1401 		rval = 1;
1402 		break;
1403 	case SCSI_CAP_LINKED_CMDS:
1404 		rval = 0;
1405 		break;
1406 	case SCSI_CAP_RESET_NOTIFICATION:
1407 		rval = 1;
1408 		break;
1409 	case SCSI_CAP_GEOMETRY:
1410 		rval = -1;
1411 
1412 		break;
1413 	default:
1414 		con_log(CL_DLEVEL2, (CE_NOTE, "Default cap coming 0x%x",
1415 		    scsi_hba_lookup_capstr(cap)));
1416 		rval = -1;
1417 		break;
1418 	}
1419 
1420 	return (rval);
1421 }
1422 
1423 /*ARGSUSED*/
1424 static int
1425 mrsas_tran_setcap(struct scsi_address *ap, char *cap, int value, int whom)
1426 {
1427 	int		rval = 1;
1428 
1429 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1430 
1431 	/* We don't allow setting capabilities for other targets */
1432 	if (cap == NULL || whom == 0) {
1433 		return (-1);
1434 	}
1435 
1436 	switch (scsi_hba_lookup_capstr(cap)) {
1437 		case SCSI_CAP_DMA_MAX:
1438 		case SCSI_CAP_MSG_OUT:
1439 		case SCSI_CAP_PARITY:
1440 		case SCSI_CAP_LINKED_CMDS:
1441 		case SCSI_CAP_RESET_NOTIFICATION:
1442 		case SCSI_CAP_DISCONNECT:
1443 		case SCSI_CAP_SYNCHRONOUS:
1444 		case SCSI_CAP_UNTAGGED_QING:
1445 		case SCSI_CAP_WIDE_XFER:
1446 		case SCSI_CAP_INITIATOR_ID:
1447 		case SCSI_CAP_ARQ:
1448 			/*
1449 			 * None of these are settable via
1450 			 * the capability interface.
1451 			 */
1452 			break;
1453 		case SCSI_CAP_TAGGED_QING:
1454 			rval = 1;
1455 			break;
1456 		case SCSI_CAP_SECTOR_SIZE:
1457 			rval = 1;
1458 			break;
1459 
1460 		case SCSI_CAP_TOTAL_SECTORS:
1461 			rval = 1;
1462 			break;
1463 		default:
1464 			rval = -1;
1465 			break;
1466 	}
1467 
1468 	return (rval);
1469 }
1470 
1471 static void
1472 mrsas_tran_destroy_pkt(struct scsi_address *ap, struct scsi_pkt *pkt)
1473 {
1474 	struct scsa_cmd *acmd = PKT2CMD(pkt);
1475 
1476 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1477 
1478 	if (acmd->cmd_flags & CFLAG_DMAVALID) {
1479 		acmd->cmd_flags &= ~CFLAG_DMAVALID;
1480 
1481 		(void) ddi_dma_unbind_handle(acmd->cmd_dmahandle);
1482 
1483 		ddi_dma_free_handle(&acmd->cmd_dmahandle);
1484 
1485 		acmd->cmd_dmahandle = NULL;
1486 	}
1487 
1488 	/* free the pkt */
1489 	scsi_hba_pkt_free(ap, pkt);
1490 }
1491 
1492 /*ARGSUSED*/
1493 static void
1494 mrsas_tran_dmafree(struct scsi_address *ap, struct scsi_pkt *pkt)
1495 {
1496 	register struct scsa_cmd *acmd = PKT2CMD(pkt);
1497 
1498 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1499 
1500 	if (acmd->cmd_flags & CFLAG_DMAVALID) {
1501 		acmd->cmd_flags &= ~CFLAG_DMAVALID;
1502 
1503 		(void) ddi_dma_unbind_handle(acmd->cmd_dmahandle);
1504 
1505 		ddi_dma_free_handle(&acmd->cmd_dmahandle);
1506 
1507 		acmd->cmd_dmahandle = NULL;
1508 	}
1509 }
1510 
1511 /*ARGSUSED*/
1512 static void
1513 mrsas_tran_sync_pkt(struct scsi_address *ap, struct scsi_pkt *pkt)
1514 {
1515 	register struct scsa_cmd	*acmd = PKT2CMD(pkt);
1516 
1517 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1518 
1519 	if (acmd->cmd_flags & CFLAG_DMAVALID) {
1520 		(void) ddi_dma_sync(acmd->cmd_dmahandle, acmd->cmd_dma_offset,
1521 		    acmd->cmd_dma_len, (acmd->cmd_flags & CFLAG_DMASEND) ?
1522 		    DDI_DMA_SYNC_FORDEV : DDI_DMA_SYNC_FORCPU);
1523 	}
1524 }
1525 
1526 /*
1527  * mrsas_isr(caddr_t)
1528  *
1529  * The Interrupt Service Routine
1530  *
1531  * Collect status for all completed commands and do callback
1532  *
1533  */
1534 static uint_t
1535 mrsas_isr(struct mrsas_instance *instance)
1536 {
1537 	int		need_softintr;
1538 	uint32_t	producer;
1539 	uint32_t	consumer;
1540 	uint32_t	context;
1541 
1542 	struct mrsas_cmd	*cmd;
1543 
1544 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1545 
1546 	ASSERT(instance);
1547 	if ((instance->intr_type == DDI_INTR_TYPE_FIXED) &&
1548 	    !instance->func_ptr->intr_ack(instance)) {
1549 		return (DDI_INTR_UNCLAIMED);
1550 	}
1551 
1552 	(void) ddi_dma_sync(instance->mfi_internal_dma_obj.dma_handle,
1553 	    0, 0, DDI_DMA_SYNC_FORCPU);
1554 
1555 	if (mrsas_check_dma_handle(instance->mfi_internal_dma_obj.dma_handle)
1556 	    != DDI_SUCCESS) {
1557 		mrsas_fm_ereport(instance, DDI_FM_DEVICE_NO_RESPONSE);
1558 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
1559 		return (DDI_INTR_CLAIMED);
1560 	}
1561 
1562 	producer = ddi_get32(instance->mfi_internal_dma_obj.acc_handle,
1563 	    instance->producer);
1564 	consumer = ddi_get32(instance->mfi_internal_dma_obj.acc_handle,
1565 	    instance->consumer);
1566 
1567 	con_log(CL_ANN1, (CE_CONT, " producer %x consumer %x ",
1568 	    producer, consumer));
1569 	if (producer == consumer) {
1570 		con_log(CL_ANN1, (CE_WARN, "producer = consumer case"));
1571 		return (DDI_INTR_CLAIMED);
1572 	}
1573 	mutex_enter(&instance->completed_pool_mtx);
1574 
1575 	while (consumer != producer) {
1576 		context = ddi_get32(instance->mfi_internal_dma_obj.acc_handle,
1577 		    &instance->reply_queue[consumer]);
1578 		cmd = instance->cmd_list[context];
1579 		mlist_add_tail(&cmd->list, &instance->completed_pool_list);
1580 
1581 		consumer++;
1582 		if (consumer == (instance->max_fw_cmds + 1)) {
1583 			consumer = 0;
1584 		}
1585 	}
1586 
1587 	mutex_exit(&instance->completed_pool_mtx);
1588 
1589 	ddi_put32(instance->mfi_internal_dma_obj.acc_handle,
1590 	    instance->consumer, consumer);
1591 	(void) ddi_dma_sync(instance->mfi_internal_dma_obj.dma_handle,
1592 	    0, 0, DDI_DMA_SYNC_FORDEV);
1593 
1594 	if (instance->softint_running) {
1595 		need_softintr = 0;
1596 	} else {
1597 		need_softintr = 1;
1598 	}
1599 
1600 	if (instance->isr_level == HIGH_LEVEL_INTR) {
1601 		if (need_softintr) {
1602 			ddi_trigger_softintr(instance->soft_intr_id);
1603 		}
1604 	} else {
1605 		/*
1606 		 * Not a high-level interrupt, therefore call the soft level
1607 		 * interrupt explicitly
1608 		 */
1609 		(void) mrsas_softintr(instance);
1610 	}
1611 
1612 	return (DDI_INTR_CLAIMED);
1613 }
1614 
1615 
1616 /*
1617  * ************************************************************************** *
1618  *                                                                            *
1619  *                                  libraries                                 *
1620  *                                                                            *
1621  * ************************************************************************** *
1622  */
1623 /*
1624  * get_mfi_pkt : Get a command from the free pool
1625  * After successful allocation, the caller of this routine
1626  * must clear the frame buffer (memset to zero) before
1627  * using the packet further.
1628  *
1629  * ***** Note *****
1630  * After clearing the frame buffer the context id of the
1631  * frame buffer SHOULD be restored back.
1632  */
1633 static struct mrsas_cmd *
1634 get_mfi_pkt(struct mrsas_instance *instance)
1635 {
1636 	mlist_t 		*head = &instance->cmd_pool_list;
1637 	struct mrsas_cmd	*cmd = NULL;
1638 
1639 	mutex_enter(&instance->cmd_pool_mtx);
1640 	ASSERT(mutex_owned(&instance->cmd_pool_mtx));
1641 
1642 	if (!mlist_empty(head)) {
1643 		cmd = mlist_entry(head->next, struct mrsas_cmd, list);
1644 		mlist_del_init(head->next);
1645 	}
1646 	if (cmd != NULL)
1647 		cmd->pkt = NULL;
1648 	mutex_exit(&instance->cmd_pool_mtx);
1649 
1650 	return (cmd);
1651 }
1652 
1653 /*
1654  * return_mfi_pkt : Return a cmd to free command pool
1655  */
1656 static void
1657 return_mfi_pkt(struct mrsas_instance *instance, struct mrsas_cmd *cmd)
1658 {
1659 	mutex_enter(&instance->cmd_pool_mtx);
1660 	ASSERT(mutex_owned(&instance->cmd_pool_mtx));
1661 
1662 	mlist_add(&cmd->list, &instance->cmd_pool_list);
1663 
1664 	mutex_exit(&instance->cmd_pool_mtx);
1665 }
1666 
1667 /*
1668  * destroy_mfi_frame_pool
1669  */
1670 static void
1671 destroy_mfi_frame_pool(struct mrsas_instance *instance)
1672 {
1673 	int		i;
1674 	uint32_t	max_cmd = instance->max_fw_cmds;
1675 
1676 	struct mrsas_cmd	*cmd;
1677 
1678 	/* return all frames to pool */
1679 	for (i = 0; i < max_cmd+1; i++) {
1680 
1681 		cmd = instance->cmd_list[i];
1682 
1683 		if (cmd->frame_dma_obj_status == DMA_OBJ_ALLOCATED)
1684 			(void) mrsas_free_dma_obj(instance, cmd->frame_dma_obj);
1685 
1686 		cmd->frame_dma_obj_status  = DMA_OBJ_FREED;
1687 	}
1688 
1689 }
1690 
1691 /*
1692  * create_mfi_frame_pool
1693  */
1694 static int
1695 create_mfi_frame_pool(struct mrsas_instance *instance)
1696 {
1697 	int		i = 0;
1698 	int		cookie_cnt;
1699 	uint16_t	max_cmd;
1700 	uint16_t	sge_sz;
1701 	uint32_t	sgl_sz;
1702 	uint32_t	tot_frame_size;
1703 	struct mrsas_cmd	*cmd;
1704 
1705 	max_cmd = instance->max_fw_cmds;
1706 
1707 	sge_sz	= sizeof (struct mrsas_sge64);
1708 
1709 	/* calculated the number of 64byte frames required for SGL */
1710 	sgl_sz		= sge_sz * instance->max_num_sge;
1711 	tot_frame_size	= sgl_sz + MRMFI_FRAME_SIZE + SENSE_LENGTH;
1712 
1713 	con_log(CL_DLEVEL3, (CE_NOTE, "create_mfi_frame_pool: "
1714 	    "sgl_sz %x tot_frame_size %x", sgl_sz, tot_frame_size));
1715 
1716 	while (i < max_cmd+1) {
1717 		cmd = instance->cmd_list[i];
1718 
1719 		cmd->frame_dma_obj.size	= tot_frame_size;
1720 		cmd->frame_dma_obj.dma_attr = mrsas_generic_dma_attr;
1721 		cmd->frame_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
1722 		cmd->frame_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
1723 		cmd->frame_dma_obj.dma_attr.dma_attr_sgllen = 1;
1724 		cmd->frame_dma_obj.dma_attr.dma_attr_align = 64;
1725 
1726 
1727 		cookie_cnt = mrsas_alloc_dma_obj(instance, &cmd->frame_dma_obj,
1728 		    (uchar_t)DDI_STRUCTURE_LE_ACC);
1729 
1730 		if (cookie_cnt == -1 || cookie_cnt > 1) {
1731 			con_log(CL_ANN, (CE_WARN,
1732 			    "create_mfi_frame_pool: could not alloc."));
1733 			return (DDI_FAILURE);
1734 		}
1735 
1736 		bzero(cmd->frame_dma_obj.buffer, tot_frame_size);
1737 
1738 		cmd->frame_dma_obj_status = DMA_OBJ_ALLOCATED;
1739 		cmd->frame = (union mrsas_frame *)cmd->frame_dma_obj.buffer;
1740 		cmd->frame_phys_addr =
1741 		    cmd->frame_dma_obj.dma_cookie[0].dmac_address;
1742 
1743 		cmd->sense = (uint8_t *)(((unsigned long)
1744 		    cmd->frame_dma_obj.buffer) +
1745 		    tot_frame_size - SENSE_LENGTH);
1746 		cmd->sense_phys_addr =
1747 		    cmd->frame_dma_obj.dma_cookie[0].dmac_address +
1748 		    tot_frame_size - SENSE_LENGTH;
1749 
1750 		if (!cmd->frame || !cmd->sense) {
1751 			con_log(CL_ANN, (CE_NOTE,
1752 			    "mr_sas: pci_pool_alloc failed"));
1753 
1754 			return (ENOMEM);
1755 		}
1756 
1757 		ddi_put32(cmd->frame_dma_obj.acc_handle,
1758 		    &cmd->frame->io.context, cmd->index);
1759 		i++;
1760 
1761 		con_log(CL_DLEVEL3, (CE_NOTE, "[%x]-%x",
1762 		    cmd->index, cmd->frame_phys_addr));
1763 	}
1764 
1765 	return (DDI_SUCCESS);
1766 }
1767 
1768 /*
1769  * free_additional_dma_buffer
1770  */
1771 static void
1772 free_additional_dma_buffer(struct mrsas_instance *instance)
1773 {
1774 	if (instance->mfi_internal_dma_obj.status == DMA_OBJ_ALLOCATED) {
1775 		(void) mrsas_free_dma_obj(instance,
1776 		    instance->mfi_internal_dma_obj);
1777 		instance->mfi_internal_dma_obj.status = DMA_OBJ_FREED;
1778 	}
1779 
1780 	if (instance->mfi_evt_detail_obj.status == DMA_OBJ_ALLOCATED) {
1781 		(void) mrsas_free_dma_obj(instance,
1782 		    instance->mfi_evt_detail_obj);
1783 		instance->mfi_evt_detail_obj.status = DMA_OBJ_FREED;
1784 	}
1785 }
1786 
1787 /*
1788  * alloc_additional_dma_buffer
1789  */
1790 static int
1791 alloc_additional_dma_buffer(struct mrsas_instance *instance)
1792 {
1793 	uint32_t	reply_q_sz;
1794 	uint32_t	internal_buf_size = PAGESIZE*2;
1795 
1796 	/* max cmds plus 1 + producer & consumer */
1797 	reply_q_sz = sizeof (uint32_t) * (instance->max_fw_cmds + 1 + 2);
1798 
1799 	instance->mfi_internal_dma_obj.size = internal_buf_size;
1800 	instance->mfi_internal_dma_obj.dma_attr	= mrsas_generic_dma_attr;
1801 	instance->mfi_internal_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
1802 	instance->mfi_internal_dma_obj.dma_attr.dma_attr_count_max =
1803 	    0xFFFFFFFFU;
1804 	instance->mfi_internal_dma_obj.dma_attr.dma_attr_sgllen	= 1;
1805 
1806 	if (mrsas_alloc_dma_obj(instance, &instance->mfi_internal_dma_obj,
1807 	    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
1808 		con_log(CL_ANN, (CE_WARN,
1809 		    "mr_sas: could not alloc reply queue"));
1810 		return (DDI_FAILURE);
1811 	}
1812 
1813 	bzero(instance->mfi_internal_dma_obj.buffer, internal_buf_size);
1814 
1815 	instance->mfi_internal_dma_obj.status |= DMA_OBJ_ALLOCATED;
1816 
1817 	instance->producer = (uint32_t *)((unsigned long)
1818 	    instance->mfi_internal_dma_obj.buffer);
1819 	instance->consumer = (uint32_t *)((unsigned long)
1820 	    instance->mfi_internal_dma_obj.buffer + 4);
1821 	instance->reply_queue = (uint32_t *)((unsigned long)
1822 	    instance->mfi_internal_dma_obj.buffer + 8);
1823 	instance->internal_buf = (caddr_t)(((unsigned long)
1824 	    instance->mfi_internal_dma_obj.buffer) + reply_q_sz + 8);
1825 	instance->internal_buf_dmac_add =
1826 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address +
1827 	    (reply_q_sz + 8);
1828 	instance->internal_buf_size = internal_buf_size -
1829 	    (reply_q_sz + 8);
1830 
1831 	/* allocate evt_detail */
1832 	instance->mfi_evt_detail_obj.size = sizeof (struct mrsas_evt_detail);
1833 	instance->mfi_evt_detail_obj.dma_attr = mrsas_generic_dma_attr;
1834 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
1835 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
1836 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_sgllen = 1;
1837 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_align = 1;
1838 
1839 	if (mrsas_alloc_dma_obj(instance, &instance->mfi_evt_detail_obj,
1840 	    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
1841 		con_log(CL_ANN, (CE_WARN, "alloc_additional_dma_buffer: "
1842 		    "could not allocate data transfer buffer."));
1843 		return (DDI_FAILURE);
1844 	}
1845 
1846 	bzero(instance->mfi_evt_detail_obj.buffer,
1847 	    sizeof (struct mrsas_evt_detail));
1848 
1849 	instance->mfi_evt_detail_obj.status |= DMA_OBJ_ALLOCATED;
1850 
1851 	return (DDI_SUCCESS);
1852 }
1853 
1854 /*
1855  * free_space_for_mfi
1856  */
1857 static void
1858 free_space_for_mfi(struct mrsas_instance *instance)
1859 {
1860 	int		i;
1861 	uint32_t	max_cmd = instance->max_fw_cmds;
1862 
1863 	/* already freed */
1864 	if (instance->cmd_list == NULL) {
1865 		return;
1866 	}
1867 
1868 	free_additional_dma_buffer(instance);
1869 
1870 	/* first free the MFI frame pool */
1871 	destroy_mfi_frame_pool(instance);
1872 
1873 	/* free all the commands in the cmd_list */
1874 	for (i = 0; i < instance->max_fw_cmds+1; i++) {
1875 		kmem_free(instance->cmd_list[i],
1876 		    sizeof (struct mrsas_cmd));
1877 
1878 		instance->cmd_list[i] = NULL;
1879 	}
1880 
1881 	/* free the cmd_list buffer itself */
1882 	kmem_free(instance->cmd_list,
1883 	    sizeof (struct mrsas_cmd *) * (max_cmd+1));
1884 
1885 	instance->cmd_list = NULL;
1886 
1887 	INIT_LIST_HEAD(&instance->cmd_pool_list);
1888 }
1889 
1890 /*
1891  * alloc_space_for_mfi
1892  */
1893 static int
1894 alloc_space_for_mfi(struct mrsas_instance *instance)
1895 {
1896 	int		i;
1897 	uint32_t	max_cmd;
1898 	size_t		sz;
1899 
1900 	struct mrsas_cmd	*cmd;
1901 
1902 	max_cmd = instance->max_fw_cmds;
1903 
1904 	/* reserve 1 more slot for flush_cache */
1905 	sz = sizeof (struct mrsas_cmd *) * (max_cmd+1);
1906 
1907 	/*
1908 	 * instance->cmd_list is an array of struct mrsas_cmd pointers.
1909 	 * Allocate the dynamic array first and then allocate individual
1910 	 * commands.
1911 	 */
1912 	instance->cmd_list = kmem_zalloc(sz, KM_SLEEP);
1913 	ASSERT(instance->cmd_list);
1914 
1915 	for (i = 0; i < max_cmd+1; i++) {
1916 		instance->cmd_list[i] = kmem_zalloc(sizeof (struct mrsas_cmd),
1917 		    KM_SLEEP);
1918 		ASSERT(instance->cmd_list[i]);
1919 	}
1920 
1921 	INIT_LIST_HEAD(&instance->cmd_pool_list);
1922 
1923 	/* add all the commands to command pool (instance->cmd_pool) */
1924 	for (i = 0; i < max_cmd; i++) {
1925 		cmd		= instance->cmd_list[i];
1926 		cmd->index	= i;
1927 
1928 		mlist_add_tail(&cmd->list, &instance->cmd_pool_list);
1929 	}
1930 
1931 	/* single slot for flush_cache won't be added in command pool */
1932 	cmd		= instance->cmd_list[max_cmd];
1933 	cmd->index	= i;
1934 
1935 	/* create a frame pool and assign one frame to each cmd */
1936 	if (create_mfi_frame_pool(instance)) {
1937 		con_log(CL_ANN, (CE_NOTE, "error creating frame DMA pool"));
1938 		return (DDI_FAILURE);
1939 	}
1940 
1941 	/* create a frame pool and assign one frame to each cmd */
1942 	if (alloc_additional_dma_buffer(instance)) {
1943 		con_log(CL_ANN, (CE_NOTE, "error creating frame DMA pool"));
1944 		return (DDI_FAILURE);
1945 	}
1946 
1947 	return (DDI_SUCCESS);
1948 }
1949 
1950 /*
1951  * get_ctrl_info
1952  */
1953 static int
1954 get_ctrl_info(struct mrsas_instance *instance,
1955     struct mrsas_ctrl_info *ctrl_info)
1956 {
1957 	int	ret = 0;
1958 
1959 	struct mrsas_cmd		*cmd;
1960 	struct mrsas_dcmd_frame	*dcmd;
1961 	struct mrsas_ctrl_info	*ci;
1962 
1963 	cmd = get_mfi_pkt(instance);
1964 
1965 	if (!cmd) {
1966 		con_log(CL_ANN, (CE_WARN,
1967 		    "Failed to get a cmd for ctrl info"));
1968 		return (DDI_FAILURE);
1969 	}
1970 	/* Clear the frame buffer and assign back the context id */
1971 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
1972 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
1973 	    cmd->index);
1974 
1975 	dcmd = &cmd->frame->dcmd;
1976 
1977 	ci = (struct mrsas_ctrl_info *)instance->internal_buf;
1978 
1979 	if (!ci) {
1980 		con_log(CL_ANN, (CE_WARN,
1981 		    "Failed to alloc mem for ctrl info"));
1982 		return_mfi_pkt(instance, cmd);
1983 		return (DDI_FAILURE);
1984 	}
1985 
1986 	(void) memset(ci, 0, sizeof (struct mrsas_ctrl_info));
1987 
1988 	/* for( i = 0; i < DCMD_MBOX_SZ; i++ ) dcmd->mbox.b[i] = 0; */
1989 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
1990 
1991 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
1992 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status,
1993 	    MFI_CMD_STATUS_POLL_MODE);
1994 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 1);
1995 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
1996 	    MFI_FRAME_DIR_READ);
1997 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
1998 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len,
1999 	    sizeof (struct mrsas_ctrl_info));
2000 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
2001 	    MR_DCMD_CTRL_GET_INFO);
2002 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].phys_addr,
2003 	    instance->internal_buf_dmac_add);
2004 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].length,
2005 	    sizeof (struct mrsas_ctrl_info));
2006 
2007 	cmd->frame_count = 1;
2008 
2009 	if (!instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
2010 		ret = 0;
2011 		ctrl_info->max_request_size = ddi_get32(
2012 		    cmd->frame_dma_obj.acc_handle, &ci->max_request_size);
2013 		ctrl_info->ld_present_count = ddi_get16(
2014 		    cmd->frame_dma_obj.acc_handle, &ci->ld_present_count);
2015 		ddi_rep_get8(cmd->frame_dma_obj.acc_handle,
2016 		    (uint8_t *)(ctrl_info->product_name),
2017 		    (uint8_t *)(ci->product_name), 80 * sizeof (char),
2018 		    DDI_DEV_AUTOINCR);
2019 		/* should get more members of ci with ddi_get when needed */
2020 	} else {
2021 		con_log(CL_ANN, (CE_WARN, "get_ctrl_info: Ctrl info failed"));
2022 		ret = -1;
2023 	}
2024 
2025 	return_mfi_pkt(instance, cmd);
2026 	if (mrsas_common_check(instance, cmd) != DDI_SUCCESS) {
2027 		ret = -1;
2028 	}
2029 
2030 	return (ret);
2031 }
2032 
2033 /*
2034  * abort_aen_cmd
2035  */
2036 static int
2037 abort_aen_cmd(struct mrsas_instance *instance,
2038     struct mrsas_cmd *cmd_to_abort)
2039 {
2040 	int	ret = 0;
2041 
2042 	struct mrsas_cmd		*cmd;
2043 	struct mrsas_abort_frame	*abort_fr;
2044 
2045 	cmd = get_mfi_pkt(instance);
2046 
2047 	if (!cmd) {
2048 		con_log(CL_ANN, (CE_WARN,
2049 		    "Failed to get a cmd for ctrl info"));
2050 		return (DDI_FAILURE);
2051 	}
2052 	/* Clear the frame buffer and assign back the context id */
2053 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
2054 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
2055 	    cmd->index);
2056 
2057 	abort_fr = &cmd->frame->abort;
2058 
2059 	/* prepare and issue the abort frame */
2060 	ddi_put8(cmd->frame_dma_obj.acc_handle,
2061 	    &abort_fr->cmd, MFI_CMD_OP_ABORT);
2062 	ddi_put8(cmd->frame_dma_obj.acc_handle, &abort_fr->cmd_status,
2063 	    MFI_CMD_STATUS_SYNC_MODE);
2064 	ddi_put16(cmd->frame_dma_obj.acc_handle, &abort_fr->flags, 0);
2065 	ddi_put32(cmd->frame_dma_obj.acc_handle, &abort_fr->abort_context,
2066 	    cmd_to_abort->index);
2067 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2068 	    &abort_fr->abort_mfi_phys_addr_lo, cmd_to_abort->frame_phys_addr);
2069 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2070 	    &abort_fr->abort_mfi_phys_addr_hi, 0);
2071 
2072 	instance->aen_cmd->abort_aen = 1;
2073 
2074 	cmd->sync_cmd = MRSAS_TRUE;
2075 	cmd->frame_count = 1;
2076 
2077 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
2078 		con_log(CL_ANN, (CE_WARN,
2079 		    "abort_aen_cmd: issue_cmd_in_sync_mode failed"));
2080 		ret = -1;
2081 	} else {
2082 		ret = 0;
2083 	}
2084 
2085 	instance->aen_cmd->abort_aen = 1;
2086 	instance->aen_cmd = 0;
2087 
2088 	return_mfi_pkt(instance, cmd);
2089 	(void) mrsas_common_check(instance, cmd);
2090 
2091 	return (ret);
2092 }
2093 
2094 /*
2095  * init_mfi
2096  */
2097 static int
2098 init_mfi(struct mrsas_instance *instance)
2099 {
2100 	struct mrsas_cmd		*cmd;
2101 	struct mrsas_ctrl_info		ctrl_info;
2102 	struct mrsas_init_frame		*init_frame;
2103 	struct mrsas_init_queue_info	*initq_info;
2104 
2105 	/* we expect the FW state to be READY */
2106 	if (mfi_state_transition_to_ready(instance)) {
2107 		con_log(CL_ANN, (CE_WARN, "mr_sas: F/W is not ready"));
2108 		goto fail_ready_state;
2109 	}
2110 
2111 	/* get various operational parameters from status register */
2112 	instance->max_num_sge =
2113 	    (instance->func_ptr->read_fw_status_reg(instance) &
2114 	    0xFF0000) >> 0x10;
2115 	/*
2116 	 * Reduce the max supported cmds by 1. This is to ensure that the
2117 	 * reply_q_sz (1 more than the max cmd that driver may send)
2118 	 * does not exceed max cmds that the FW can support
2119 	 */
2120 	instance->max_fw_cmds =
2121 	    instance->func_ptr->read_fw_status_reg(instance) & 0xFFFF;
2122 	instance->max_fw_cmds = instance->max_fw_cmds - 1;
2123 
2124 	instance->max_num_sge =
2125 	    (instance->max_num_sge > MRSAS_MAX_SGE_CNT) ?
2126 	    MRSAS_MAX_SGE_CNT : instance->max_num_sge;
2127 
2128 	/* create a pool of commands */
2129 	if (alloc_space_for_mfi(instance) != DDI_SUCCESS)
2130 		goto fail_alloc_fw_space;
2131 
2132 	/*
2133 	 * Prepare a init frame. Note the init frame points to queue info
2134 	 * structure. Each frame has SGL allocated after first 64 bytes. For
2135 	 * this frame - since we don't need any SGL - we use SGL's space as
2136 	 * queue info structure
2137 	 */
2138 	cmd = get_mfi_pkt(instance);
2139 	/* Clear the frame buffer and assign back the context id */
2140 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
2141 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
2142 	    cmd->index);
2143 
2144 	init_frame = (struct mrsas_init_frame *)cmd->frame;
2145 	initq_info = (struct mrsas_init_queue_info *)
2146 	    ((unsigned long)init_frame + 64);
2147 
2148 	(void) memset(init_frame, 0, MRMFI_FRAME_SIZE);
2149 	(void) memset(initq_info, 0, sizeof (struct mrsas_init_queue_info));
2150 
2151 	ddi_put32(cmd->frame_dma_obj.acc_handle, &initq_info->init_flags, 0);
2152 
2153 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2154 	    &initq_info->reply_queue_entries, instance->max_fw_cmds + 1);
2155 
2156 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2157 	    &initq_info->producer_index_phys_addr_hi, 0);
2158 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2159 	    &initq_info->producer_index_phys_addr_lo,
2160 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address);
2161 
2162 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2163 	    &initq_info->consumer_index_phys_addr_hi, 0);
2164 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2165 	    &initq_info->consumer_index_phys_addr_lo,
2166 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address + 4);
2167 
2168 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2169 	    &initq_info->reply_queue_start_phys_addr_hi, 0);
2170 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2171 	    &initq_info->reply_queue_start_phys_addr_lo,
2172 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address + 8);
2173 
2174 	ddi_put8(cmd->frame_dma_obj.acc_handle,
2175 	    &init_frame->cmd, MFI_CMD_OP_INIT);
2176 	ddi_put8(cmd->frame_dma_obj.acc_handle, &init_frame->cmd_status,
2177 	    MFI_CMD_STATUS_POLL_MODE);
2178 	ddi_put16(cmd->frame_dma_obj.acc_handle, &init_frame->flags, 0);
2179 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2180 	    &init_frame->queue_info_new_phys_addr_lo,
2181 	    cmd->frame_phys_addr + 64);
2182 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2183 	    &init_frame->queue_info_new_phys_addr_hi, 0);
2184 
2185 	ddi_put32(cmd->frame_dma_obj.acc_handle, &init_frame->data_xfer_len,
2186 	    sizeof (struct mrsas_init_queue_info));
2187 
2188 	cmd->frame_count = 1;
2189 
2190 	/* issue the init frame in polled mode */
2191 	if (instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
2192 		con_log(CL_ANN, (CE_WARN, "failed to init firmware"));
2193 		goto fail_fw_init;
2194 	}
2195 
2196 	return_mfi_pkt(instance, cmd);
2197 	if (mrsas_common_check(instance, cmd) != DDI_SUCCESS) {
2198 		goto fail_fw_init;
2199 	}
2200 
2201 	/* gather misc FW related information */
2202 	if (!get_ctrl_info(instance, &ctrl_info)) {
2203 		instance->max_sectors_per_req = ctrl_info.max_request_size;
2204 		con_log(CL_ANN1, (CE_NOTE, "product name %s ld present %d",
2205 		    ctrl_info.product_name, ctrl_info.ld_present_count));
2206 	} else {
2207 		instance->max_sectors_per_req = instance->max_num_sge *
2208 		    PAGESIZE / 512;
2209 	}
2210 
2211 	if (mrsas_check_acc_handle(instance->regmap_handle) != DDI_SUCCESS) {
2212 		goto fail_fw_init;
2213 	}
2214 
2215 	return (DDI_SUCCESS);
2216 
2217 fail_fw_init:
2218 fail_alloc_fw_space:
2219 
2220 	free_space_for_mfi(instance);
2221 
2222 fail_ready_state:
2223 	ddi_regs_map_free(&instance->regmap_handle);
2224 
2225 fail_mfi_reg_setup:
2226 	return (DDI_FAILURE);
2227 }
2228 
2229 /*
2230  * mfi_state_transition_to_ready	: Move the FW to READY state
2231  *
2232  * @reg_set			: MFI register set
2233  */
2234 static int
2235 mfi_state_transition_to_ready(struct mrsas_instance *instance)
2236 {
2237 	int		i;
2238 	uint8_t		max_wait;
2239 	uint32_t	fw_ctrl;
2240 	uint32_t	fw_state;
2241 	uint32_t	cur_state;
2242 
2243 	fw_state =
2244 	    instance->func_ptr->read_fw_status_reg(instance) & MFI_STATE_MASK;
2245 	con_log(CL_ANN1, (CE_NOTE,
2246 	    "mfi_state_transition_to_ready:FW state = 0x%x", fw_state));
2247 
2248 	while (fw_state != MFI_STATE_READY) {
2249 		con_log(CL_ANN, (CE_NOTE,
2250 		    "mfi_state_transition_to_ready:FW state%x", fw_state));
2251 
2252 		switch (fw_state) {
2253 		case MFI_STATE_FAULT:
2254 			con_log(CL_ANN, (CE_NOTE,
2255 			    "mr_sas: FW in FAULT state!!"));
2256 
2257 			return (ENODEV);
2258 		case MFI_STATE_WAIT_HANDSHAKE:
2259 			/* set the CLR bit in IMR0 */
2260 			con_log(CL_ANN, (CE_NOTE,
2261 			    "mr_sas: FW waiting for HANDSHAKE"));
2262 			/*
2263 			 * PCI_Hot Plug: MFI F/W requires
2264 			 * (MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG)
2265 			 * to be set
2266 			 */
2267 			/* WR_IB_MSG_0(MFI_INIT_CLEAR_HANDSHAKE, instance); */
2268 			WR_IB_DOORBELL(MFI_INIT_CLEAR_HANDSHAKE |
2269 			    MFI_INIT_HOTPLUG, instance);
2270 
2271 			max_wait	= 2;
2272 			cur_state	= MFI_STATE_WAIT_HANDSHAKE;
2273 			break;
2274 		case MFI_STATE_BOOT_MESSAGE_PENDING:
2275 			/* set the CLR bit in IMR0 */
2276 			con_log(CL_ANN, (CE_NOTE,
2277 			    "mr_sas: FW state boot message pending"));
2278 			/*
2279 			 * PCI_Hot Plug: MFI F/W requires
2280 			 * (MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG)
2281 			 * to be set
2282 			 */
2283 			WR_IB_DOORBELL(MFI_INIT_HOTPLUG, instance);
2284 
2285 			max_wait	= 10;
2286 			cur_state	= MFI_STATE_BOOT_MESSAGE_PENDING;
2287 			break;
2288 		case MFI_STATE_OPERATIONAL:
2289 			/* bring it to READY state; assuming max wait 2 secs */
2290 			instance->func_ptr->disable_intr(instance);
2291 			con_log(CL_ANN1, (CE_NOTE,
2292 			    "mr_sas: FW in OPERATIONAL state"));
2293 			/*
2294 			 * PCI_Hot Plug: MFI F/W requires
2295 			 * (MFI_INIT_READY | MFI_INIT_MFIMODE | MFI_INIT_ABORT)
2296 			 * to be set
2297 			 */
2298 			/* WR_IB_DOORBELL(MFI_INIT_READY, instance); */
2299 			WR_IB_DOORBELL(MFI_RESET_FLAGS, instance);
2300 
2301 			max_wait	= 10;
2302 			cur_state	= MFI_STATE_OPERATIONAL;
2303 			break;
2304 		case MFI_STATE_UNDEFINED:
2305 			/* this state should not last for more than 2 seconds */
2306 			con_log(CL_ANN, (CE_NOTE, "FW state undefined"));
2307 
2308 			max_wait	= 2;
2309 			cur_state	= MFI_STATE_UNDEFINED;
2310 			break;
2311 		case MFI_STATE_BB_INIT:
2312 			max_wait	= 2;
2313 			cur_state	= MFI_STATE_BB_INIT;
2314 			break;
2315 		case MFI_STATE_FW_INIT:
2316 			max_wait	= 2;
2317 			cur_state	= MFI_STATE_FW_INIT;
2318 			break;
2319 		case MFI_STATE_DEVICE_SCAN:
2320 			max_wait	= 10;
2321 			cur_state	= MFI_STATE_DEVICE_SCAN;
2322 			break;
2323 		default:
2324 			con_log(CL_ANN, (CE_NOTE,
2325 			    "mr_sas: Unknown state 0x%x", fw_state));
2326 			return (ENODEV);
2327 		}
2328 
2329 		/* the cur_state should not last for more than max_wait secs */
2330 		for (i = 0; i < (max_wait * MILLISEC); i++) {
2331 			/* fw_state = RD_OB_MSG_0(instance) & MFI_STATE_MASK; */
2332 			fw_state =
2333 			    instance->func_ptr->read_fw_status_reg(instance) &
2334 			    MFI_STATE_MASK;
2335 
2336 			if (fw_state == cur_state) {
2337 				delay(1 * drv_usectohz(MILLISEC));
2338 			} else {
2339 				break;
2340 			}
2341 		}
2342 
2343 		/* return error if fw_state hasn't changed after max_wait */
2344 		if (fw_state == cur_state) {
2345 			con_log(CL_ANN, (CE_NOTE,
2346 			    "FW state hasn't changed in %d secs", max_wait));
2347 			return (ENODEV);
2348 		}
2349 	};
2350 
2351 	fw_ctrl = RD_IB_DOORBELL(instance);
2352 
2353 	con_log(CL_ANN1, (CE_NOTE,
2354 	    "mfi_state_transition_to_ready:FW ctrl = 0x%x", fw_ctrl));
2355 
2356 	/*
2357 	 * Write 0xF to the doorbell register to do the following.
2358 	 * - Abort all outstanding commands (bit 0).
2359 	 * - Transition from OPERATIONAL to READY state (bit 1).
2360 	 * - Discard (possible) low MFA posted in 64-bit mode (bit-2).
2361 	 * - Set to release FW to continue running (i.e. BIOS handshake
2362 	 *   (bit 3).
2363 	 */
2364 	WR_IB_DOORBELL(0xF, instance);
2365 
2366 	if (mrsas_check_acc_handle(instance->regmap_handle) != DDI_SUCCESS) {
2367 		return (ENODEV);
2368 	}
2369 	return (DDI_SUCCESS);
2370 }
2371 
2372 /*
2373  * get_seq_num
2374  */
2375 static int
2376 get_seq_num(struct mrsas_instance *instance,
2377     struct mrsas_evt_log_info *eli)
2378 {
2379 	int	ret = DDI_SUCCESS;
2380 
2381 	dma_obj_t			dcmd_dma_obj;
2382 	struct mrsas_cmd		*cmd;
2383 	struct mrsas_dcmd_frame		*dcmd;
2384 	struct mrsas_evt_log_info *eli_tmp;
2385 	cmd = get_mfi_pkt(instance);
2386 
2387 	if (!cmd) {
2388 		cmn_err(CE_WARN, "mr_sas: failed to get a cmd");
2389 		return (ENOMEM);
2390 	}
2391 	/* Clear the frame buffer and assign back the context id */
2392 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
2393 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
2394 	    cmd->index);
2395 
2396 	dcmd	= &cmd->frame->dcmd;
2397 
2398 	/* allocate the data transfer buffer */
2399 	dcmd_dma_obj.size = sizeof (struct mrsas_evt_log_info);
2400 	dcmd_dma_obj.dma_attr = mrsas_generic_dma_attr;
2401 	dcmd_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
2402 	dcmd_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
2403 	dcmd_dma_obj.dma_attr.dma_attr_sgllen = 1;
2404 	dcmd_dma_obj.dma_attr.dma_attr_align = 1;
2405 
2406 	if (mrsas_alloc_dma_obj(instance, &dcmd_dma_obj,
2407 	    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
2408 		con_log(CL_ANN, (CE_WARN,
2409 		    "get_seq_num: could not allocate data transfer buffer."));
2410 		return (DDI_FAILURE);
2411 	}
2412 
2413 	(void) memset(dcmd_dma_obj.buffer, 0,
2414 	    sizeof (struct mrsas_evt_log_info));
2415 
2416 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
2417 
2418 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
2419 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status, 0);
2420 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 1);
2421 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
2422 	    MFI_FRAME_DIR_READ);
2423 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
2424 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len,
2425 	    sizeof (struct mrsas_evt_log_info));
2426 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
2427 	    MR_DCMD_CTRL_EVENT_GET_INFO);
2428 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].length,
2429 	    sizeof (struct mrsas_evt_log_info));
2430 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].phys_addr,
2431 	    dcmd_dma_obj.dma_cookie[0].dmac_address);
2432 
2433 	cmd->sync_cmd = MRSAS_TRUE;
2434 	cmd->frame_count = 1;
2435 
2436 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
2437 		cmn_err(CE_WARN, "get_seq_num: "
2438 		    "failed to issue MRSAS_DCMD_CTRL_EVENT_GET_INFO");
2439 		ret = DDI_FAILURE;
2440 	} else {
2441 		eli_tmp = (struct mrsas_evt_log_info *)dcmd_dma_obj.buffer;
2442 		eli->newest_seq_num = ddi_get32(cmd->frame_dma_obj.acc_handle,
2443 		    &eli_tmp->newest_seq_num);
2444 		ret = DDI_SUCCESS;
2445 	}
2446 
2447 	if (mrsas_free_dma_obj(instance, dcmd_dma_obj) != DDI_SUCCESS)
2448 		ret = DDI_FAILURE;
2449 
2450 	return_mfi_pkt(instance, cmd);
2451 	if (mrsas_common_check(instance, cmd) != DDI_SUCCESS) {
2452 		ret = DDI_FAILURE;
2453 	}
2454 	return (ret);
2455 }
2456 
2457 /*
2458  * start_mfi_aen
2459  */
2460 static int
2461 start_mfi_aen(struct mrsas_instance *instance)
2462 {
2463 	int	ret = 0;
2464 
2465 	struct mrsas_evt_log_info	eli;
2466 	union mrsas_evt_class_locale	class_locale;
2467 
2468 	/* get the latest sequence number from FW */
2469 	(void) memset(&eli, 0, sizeof (struct mrsas_evt_log_info));
2470 
2471 	if (get_seq_num(instance, &eli)) {
2472 		cmn_err(CE_WARN, "start_mfi_aen: failed to get seq num");
2473 		return (-1);
2474 	}
2475 
2476 	/* register AEN with FW for latest sequence number plus 1 */
2477 	class_locale.members.reserved	= 0;
2478 	class_locale.members.locale	= LE_16(MR_EVT_LOCALE_ALL);
2479 	class_locale.members.class	= MR_EVT_CLASS_INFO;
2480 	class_locale.word	= LE_32(class_locale.word);
2481 	ret = register_mfi_aen(instance, eli.newest_seq_num + 1,
2482 	    class_locale.word);
2483 
2484 	if (ret) {
2485 		cmn_err(CE_WARN, "start_mfi_aen: aen registration failed");
2486 		return (-1);
2487 	}
2488 
2489 	return (ret);
2490 }
2491 
2492 /*
2493  * flush_cache
2494  */
2495 static void
2496 flush_cache(struct mrsas_instance *instance)
2497 {
2498 	struct mrsas_cmd		*cmd = NULL;
2499 	struct mrsas_dcmd_frame		*dcmd;
2500 	uint32_t	max_cmd = instance->max_fw_cmds;
2501 
2502 	cmd = instance->cmd_list[max_cmd];
2503 
2504 	if (cmd == NULL)
2505 		return;
2506 
2507 	dcmd = &cmd->frame->dcmd;
2508 
2509 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
2510 
2511 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
2512 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status, 0x0);
2513 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 0);
2514 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
2515 	    MFI_FRAME_DIR_NONE);
2516 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
2517 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len, 0);
2518 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
2519 	    MR_DCMD_CTRL_CACHE_FLUSH);
2520 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->mbox.b[0],
2521 	    MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE);
2522 
2523 	cmd->frame_count = 1;
2524 
2525 	if (instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
2526 		con_log(CL_ANN1, (CE_WARN,
2527 	    "flush_cache: failed to issue MFI_DCMD_CTRL_CACHE_FLUSH"));
2528 	}
2529 	con_log(CL_DLEVEL1, (CE_NOTE, "done"));
2530 }
2531 
2532 /*
2533  * service_mfi_aen-	Completes an AEN command
2534  * @instance:			Adapter soft state
2535  * @cmd:			Command to be completed
2536  *
2537  */
2538 static void
2539 service_mfi_aen(struct mrsas_instance *instance, struct mrsas_cmd *cmd)
2540 {
2541 	uint32_t	seq_num;
2542 	struct mrsas_evt_detail *evt_detail =
2543 	    (struct mrsas_evt_detail *)instance->mfi_evt_detail_obj.buffer;
2544 	int		rval = 0;
2545 	int		tgt = 0;
2546 	ddi_acc_handle_t		acc_handle;
2547 
2548 	acc_handle = cmd->frame_dma_obj.acc_handle;
2549 
2550 	cmd->cmd_status = ddi_get8(acc_handle, &cmd->frame->io.cmd_status);
2551 
2552 	if (cmd->cmd_status == ENODATA) {
2553 		cmd->cmd_status = 0;
2554 	}
2555 
2556 	/*
2557 	 * log the MFI AEN event to the sysevent queue so that
2558 	 * application will get noticed
2559 	 */
2560 	if (ddi_log_sysevent(instance->dip, DDI_VENDOR_LSI, "LSIMEGA", "SAS",
2561 	    NULL, NULL, DDI_NOSLEEP) != DDI_SUCCESS) {
2562 		int	instance_no = ddi_get_instance(instance->dip);
2563 		con_log(CL_ANN, (CE_WARN,
2564 		    "mr_sas%d: Failed to log AEN event", instance_no));
2565 	}
2566 	/*
2567 	 * Check for any ld devices that has changed state. i.e. online
2568 	 * or offline.
2569 	 */
2570 	con_log(CL_ANN1, (CE_NOTE,
2571 	    "AEN: code = %x class = %x locale = %x args = %x",
2572 	    ddi_get32(acc_handle, &evt_detail->code),
2573 	    evt_detail->cl.members.class,
2574 	    ddi_get16(acc_handle, &evt_detail->cl.members.locale),
2575 	    ddi_get8(acc_handle, &evt_detail->arg_type)));
2576 
2577 	switch (ddi_get32(acc_handle, &evt_detail->code)) {
2578 	case MR_EVT_CFG_CLEARED: {
2579 		for (tgt = 0; tgt < MRDRV_MAX_LD; tgt++) {
2580 			if (instance->mr_ld_list[tgt].dip != NULL) {
2581 				rval = mrsas_service_evt(instance, tgt, 0,
2582 				    MRSAS_EVT_UNCONFIG_TGT, NULL);
2583 				con_log(CL_ANN1, (CE_WARN,
2584 				    "mr_sas: CFG CLEARED AEN rval = %d "
2585 				    "tgt id = %d", rval, tgt));
2586 			}
2587 		}
2588 		break;
2589 	}
2590 
2591 	case MR_EVT_LD_DELETED: {
2592 		rval = mrsas_service_evt(instance,
2593 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id), 0,
2594 		    MRSAS_EVT_UNCONFIG_TGT, NULL);
2595 		con_log(CL_ANN1, (CE_WARN, "mr_sas: LD DELETED AEN rval = %d "
2596 		    "tgt id = %d index = %d", rval,
2597 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id),
2598 		    ddi_get8(acc_handle, &evt_detail->args.ld.ld_index)));
2599 		break;
2600 	} /* End of MR_EVT_LD_DELETED */
2601 
2602 	case MR_EVT_LD_CREATED: {
2603 		rval = mrsas_service_evt(instance,
2604 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id), 0,
2605 		    MRSAS_EVT_CONFIG_TGT, NULL);
2606 		con_log(CL_ANN1, (CE_WARN, "mr_sas: LD CREATED AEN rval = %d "
2607 		    "tgt id = %d index = %d", rval,
2608 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id),
2609 		    ddi_get8(acc_handle, &evt_detail->args.ld.ld_index)));
2610 		break;
2611 	} /* End of MR_EVT_LD_CREATED */
2612 	} /* End of Main Switch */
2613 
2614 	/* get copy of seq_num and class/locale for re-registration */
2615 	seq_num = ddi_get32(acc_handle, &evt_detail->seq_num);
2616 	seq_num++;
2617 	(void) memset(instance->mfi_evt_detail_obj.buffer, 0,
2618 	    sizeof (struct mrsas_evt_detail));
2619 
2620 	ddi_put8(acc_handle, &cmd->frame->dcmd.cmd_status, 0x0);
2621 	ddi_put32(acc_handle, &cmd->frame->dcmd.mbox.w[0], seq_num);
2622 
2623 	instance->aen_seq_num = seq_num;
2624 
2625 	cmd->frame_count = 1;
2626 
2627 	/* Issue the aen registration frame */
2628 	instance->func_ptr->issue_cmd(cmd, instance);
2629 }
2630 
2631 /*
2632  * complete_cmd_in_sync_mode -	Completes an internal command
2633  * @instance:			Adapter soft state
2634  * @cmd:			Command to be completed
2635  *
2636  * The issue_cmd_in_sync_mode() function waits for a command to complete
2637  * after it issues a command. This function wakes up that waiting routine by
2638  * calling wake_up() on the wait queue.
2639  */
2640 static void
2641 complete_cmd_in_sync_mode(struct mrsas_instance *instance,
2642     struct mrsas_cmd *cmd)
2643 {
2644 	cmd->cmd_status = ddi_get8(cmd->frame_dma_obj.acc_handle,
2645 	    &cmd->frame->io.cmd_status);
2646 
2647 	cmd->sync_cmd = MRSAS_FALSE;
2648 
2649 	if (cmd->cmd_status == ENODATA) {
2650 		cmd->cmd_status = 0;
2651 	}
2652 
2653 	cv_broadcast(&instance->int_cmd_cv);
2654 }
2655 
2656 /*
2657  * mrsas_softintr - The Software ISR
2658  * @param arg	: HBA soft state
2659  *
2660  * called from high-level interrupt if hi-level interrupt are not there,
2661  * otherwise triggered as a soft interrupt
2662  */
2663 static uint_t
2664 mrsas_softintr(struct mrsas_instance *instance)
2665 {
2666 	struct scsi_pkt		*pkt;
2667 	struct scsa_cmd		*acmd;
2668 	struct mrsas_cmd	*cmd;
2669 	struct mlist_head	*pos, *next;
2670 	mlist_t			process_list;
2671 	struct mrsas_header	*hdr;
2672 	struct scsi_arq_status	*arqstat;
2673 
2674 	con_log(CL_ANN1, (CE_CONT, "mrsas_softintr called"));
2675 
2676 	ASSERT(instance);
2677 	mutex_enter(&instance->completed_pool_mtx);
2678 
2679 	if (mlist_empty(&instance->completed_pool_list)) {
2680 		mutex_exit(&instance->completed_pool_mtx);
2681 		return (DDI_INTR_CLAIMED);
2682 	}
2683 
2684 	instance->softint_running = 1;
2685 
2686 	INIT_LIST_HEAD(&process_list);
2687 	mlist_splice(&instance->completed_pool_list, &process_list);
2688 	INIT_LIST_HEAD(&instance->completed_pool_list);
2689 
2690 	mutex_exit(&instance->completed_pool_mtx);
2691 
2692 	/* perform all callbacks first, before releasing the SCBs */
2693 	mlist_for_each_safe(pos, next, &process_list) {
2694 		cmd = mlist_entry(pos, struct mrsas_cmd, list);
2695 
2696 		/* syncronize the Cmd frame for the controller */
2697 		(void) ddi_dma_sync(cmd->frame_dma_obj.dma_handle,
2698 		    0, 0, DDI_DMA_SYNC_FORCPU);
2699 
2700 		if (mrsas_check_dma_handle(cmd->frame_dma_obj.dma_handle) !=
2701 		    DDI_SUCCESS) {
2702 			mrsas_fm_ereport(instance, DDI_FM_DEVICE_NO_RESPONSE);
2703 			ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
2704 			return (DDI_INTR_CLAIMED);
2705 		}
2706 
2707 		hdr = &cmd->frame->hdr;
2708 
2709 		/* remove the internal command from the process list */
2710 		mlist_del_init(&cmd->list);
2711 
2712 		switch (ddi_get8(cmd->frame_dma_obj.acc_handle, &hdr->cmd)) {
2713 		case MFI_CMD_OP_PD_SCSI:
2714 		case MFI_CMD_OP_LD_SCSI:
2715 		case MFI_CMD_OP_LD_READ:
2716 		case MFI_CMD_OP_LD_WRITE:
2717 			/*
2718 			 * MFI_CMD_OP_PD_SCSI and MFI_CMD_OP_LD_SCSI
2719 			 * could have been issued either through an
2720 			 * IO path or an IOCTL path. If it was via IOCTL,
2721 			 * we will send it to internal completion.
2722 			 */
2723 			if (cmd->sync_cmd == MRSAS_TRUE) {
2724 				complete_cmd_in_sync_mode(instance, cmd);
2725 				break;
2726 			}
2727 
2728 			/* regular commands */
2729 			acmd =	cmd->cmd;
2730 			pkt =	CMD2PKT(acmd);
2731 
2732 			if (acmd->cmd_flags & CFLAG_DMAVALID) {
2733 				if (acmd->cmd_flags & CFLAG_CONSISTENT) {
2734 					(void) ddi_dma_sync(acmd->cmd_dmahandle,
2735 					    acmd->cmd_dma_offset,
2736 					    acmd->cmd_dma_len,
2737 					    DDI_DMA_SYNC_FORCPU);
2738 				}
2739 			}
2740 
2741 			pkt->pkt_reason		= CMD_CMPLT;
2742 			pkt->pkt_statistics	= 0;
2743 			pkt->pkt_state = STATE_GOT_BUS
2744 			    | STATE_GOT_TARGET | STATE_SENT_CMD
2745 			    | STATE_XFERRED_DATA | STATE_GOT_STATUS;
2746 
2747 			con_log(CL_ANN1, (CE_CONT,
2748 			    "CDB[0] = %x completed for %s: size %lx context %x",
2749 			    pkt->pkt_cdbp[0], ((acmd->islogical) ? "LD" : "PD"),
2750 			    acmd->cmd_dmacount, hdr->context));
2751 
2752 			if (pkt->pkt_cdbp[0] == SCMD_INQUIRY) {
2753 				struct scsi_inquiry	*inq;
2754 
2755 				if (acmd->cmd_dmacount != 0) {
2756 					bp_mapin(acmd->cmd_buf);
2757 					inq = (struct scsi_inquiry *)
2758 					    acmd->cmd_buf->b_un.b_addr;
2759 
2760 					/* don't expose physical drives to OS */
2761 					if (acmd->islogical &&
2762 					    (hdr->cmd_status == MFI_STAT_OK)) {
2763 						display_scsi_inquiry(
2764 						    (caddr_t)inq);
2765 					} else if ((hdr->cmd_status ==
2766 					    MFI_STAT_OK) && inq->inq_dtype ==
2767 					    DTYPE_DIRECT) {
2768 
2769 						display_scsi_inquiry(
2770 						    (caddr_t)inq);
2771 
2772 						/* for physical disk */
2773 						hdr->cmd_status =
2774 						    MFI_STAT_DEVICE_NOT_FOUND;
2775 					}
2776 				}
2777 			}
2778 
2779 			switch (hdr->cmd_status) {
2780 			case MFI_STAT_OK:
2781 				pkt->pkt_scbp[0] = STATUS_GOOD;
2782 				break;
2783 			case MFI_STAT_LD_CC_IN_PROGRESS:
2784 			case MFI_STAT_LD_RECON_IN_PROGRESS:
2785 				pkt->pkt_scbp[0] = STATUS_GOOD;
2786 				break;
2787 			case MFI_STAT_LD_INIT_IN_PROGRESS:
2788 				con_log(CL_ANN,
2789 				    (CE_WARN, "Initialization in Progress"));
2790 				pkt->pkt_reason	= CMD_TRAN_ERR;
2791 
2792 				break;
2793 			case MFI_STAT_SCSI_DONE_WITH_ERROR:
2794 				con_log(CL_ANN1, (CE_CONT, "scsi_done error"));
2795 
2796 				pkt->pkt_reason	= CMD_CMPLT;
2797 				((struct scsi_status *)
2798 				    pkt->pkt_scbp)->sts_chk = 1;
2799 
2800 				if (pkt->pkt_cdbp[0] == SCMD_TEST_UNIT_READY) {
2801 
2802 					con_log(CL_ANN,
2803 					    (CE_WARN, "TEST_UNIT_READY fail"));
2804 
2805 				} else {
2806 					pkt->pkt_state |= STATE_ARQ_DONE;
2807 					arqstat = (void *)(pkt->pkt_scbp);
2808 					arqstat->sts_rqpkt_reason = CMD_CMPLT;
2809 					arqstat->sts_rqpkt_resid = 0;
2810 					arqstat->sts_rqpkt_state |=
2811 					    STATE_GOT_BUS | STATE_GOT_TARGET
2812 					    | STATE_SENT_CMD
2813 					    | STATE_XFERRED_DATA;
2814 					*(uint8_t *)&arqstat->sts_rqpkt_status =
2815 					    STATUS_GOOD;
2816 					ddi_rep_get8(
2817 					    cmd->frame_dma_obj.acc_handle,
2818 					    (uint8_t *)
2819 					    &(arqstat->sts_sensedata),
2820 					    cmd->sense,
2821 					    acmd->cmd_scblen -
2822 					    offsetof(struct scsi_arq_status,
2823 					    sts_sensedata), DDI_DEV_AUTOINCR);
2824 			}
2825 				break;
2826 			case MFI_STAT_LD_OFFLINE:
2827 			case MFI_STAT_DEVICE_NOT_FOUND:
2828 				con_log(CL_ANN1, (CE_CONT,
2829 				    "device not found error"));
2830 				pkt->pkt_reason	= CMD_DEV_GONE;
2831 				pkt->pkt_statistics  = STAT_DISCON;
2832 				break;
2833 			case MFI_STAT_LD_LBA_OUT_OF_RANGE:
2834 				pkt->pkt_state |= STATE_ARQ_DONE;
2835 				pkt->pkt_reason	= CMD_CMPLT;
2836 				((struct scsi_status *)
2837 				    pkt->pkt_scbp)->sts_chk = 1;
2838 
2839 				arqstat = (void *)(pkt->pkt_scbp);
2840 				arqstat->sts_rqpkt_reason = CMD_CMPLT;
2841 				arqstat->sts_rqpkt_resid = 0;
2842 				arqstat->sts_rqpkt_state |= STATE_GOT_BUS
2843 				    | STATE_GOT_TARGET | STATE_SENT_CMD
2844 				    | STATE_XFERRED_DATA;
2845 				*(uint8_t *)&arqstat->sts_rqpkt_status =
2846 				    STATUS_GOOD;
2847 
2848 				arqstat->sts_sensedata.es_valid = 1;
2849 				arqstat->sts_sensedata.es_key =
2850 				    KEY_ILLEGAL_REQUEST;
2851 				arqstat->sts_sensedata.es_class =
2852 				    CLASS_EXTENDED_SENSE;
2853 
2854 				/*
2855 				 * LOGICAL BLOCK ADDRESS OUT OF RANGE:
2856 				 * ASC: 0x21h; ASCQ: 0x00h;
2857 				 */
2858 				arqstat->sts_sensedata.es_add_code = 0x21;
2859 				arqstat->sts_sensedata.es_qual_code = 0x00;
2860 
2861 				break;
2862 
2863 			default:
2864 				con_log(CL_ANN, (CE_CONT, "Unknown status!"));
2865 				pkt->pkt_reason	= CMD_TRAN_ERR;
2866 
2867 				break;
2868 			}
2869 
2870 			atomic_add_16(&instance->fw_outstanding, (-1));
2871 
2872 			return_mfi_pkt(instance, cmd);
2873 
2874 			(void) mrsas_common_check(instance, cmd);
2875 
2876 			if (acmd->cmd_dmahandle) {
2877 				if (mrsas_check_dma_handle(
2878 				    acmd->cmd_dmahandle) != DDI_SUCCESS) {
2879 					ddi_fm_service_impact(instance->dip,
2880 					    DDI_SERVICE_UNAFFECTED);
2881 					pkt->pkt_reason = CMD_TRAN_ERR;
2882 					pkt->pkt_statistics = 0;
2883 				}
2884 			}
2885 
2886 			/* Call the callback routine */
2887 			if (((pkt->pkt_flags & FLAG_NOINTR) == 0) &&
2888 			    pkt->pkt_comp) {
2889 				(*pkt->pkt_comp)(pkt);
2890 			}
2891 
2892 			break;
2893 		case MFI_CMD_OP_SMP:
2894 		case MFI_CMD_OP_STP:
2895 			complete_cmd_in_sync_mode(instance, cmd);
2896 			break;
2897 		case MFI_CMD_OP_DCMD:
2898 			/* see if got an event notification */
2899 			if (ddi_get32(cmd->frame_dma_obj.acc_handle,
2900 			    &cmd->frame->dcmd.opcode) ==
2901 			    MR_DCMD_CTRL_EVENT_WAIT) {
2902 				if ((instance->aen_cmd == cmd) &&
2903 				    (instance->aen_cmd->abort_aen)) {
2904 					con_log(CL_ANN, (CE_WARN,
2905 					    "mrsas_softintr: "
2906 					    "aborted_aen returned"));
2907 				} else {
2908 					atomic_add_16(&instance->fw_outstanding,
2909 					    (-1));
2910 					service_mfi_aen(instance, cmd);
2911 				}
2912 			} else {
2913 				complete_cmd_in_sync_mode(instance, cmd);
2914 			}
2915 
2916 			break;
2917 		case MFI_CMD_OP_ABORT:
2918 			con_log(CL_ANN, (CE_WARN, "MFI_CMD_OP_ABORT complete"));
2919 			/*
2920 			 * MFI_CMD_OP_ABORT successfully completed
2921 			 * in the synchronous mode
2922 			 */
2923 			complete_cmd_in_sync_mode(instance, cmd);
2924 			break;
2925 		default:
2926 			mrsas_fm_ereport(instance, DDI_FM_DEVICE_NO_RESPONSE);
2927 			ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
2928 
2929 			if (cmd->pkt != NULL) {
2930 				pkt = cmd->pkt;
2931 				if (((pkt->pkt_flags & FLAG_NOINTR) == 0) &&
2932 				    pkt->pkt_comp) {
2933 					(*pkt->pkt_comp)(pkt);
2934 				}
2935 			}
2936 			con_log(CL_ANN, (CE_WARN, "Cmd type unknown !"));
2937 			break;
2938 		}
2939 	}
2940 
2941 	instance->softint_running = 0;
2942 
2943 	return (DDI_INTR_CLAIMED);
2944 }
2945 
2946 /*
2947  * mrsas_alloc_dma_obj
2948  *
2949  * Allocate the memory and other resources for an dma object.
2950  */
2951 static int
2952 mrsas_alloc_dma_obj(struct mrsas_instance *instance, dma_obj_t *obj,
2953     uchar_t endian_flags)
2954 {
2955 	int	i;
2956 	size_t	alen = 0;
2957 	uint_t	cookie_cnt;
2958 	struct ddi_device_acc_attr tmp_endian_attr;
2959 
2960 	tmp_endian_attr = endian_attr;
2961 	tmp_endian_attr.devacc_attr_endian_flags = endian_flags;
2962 
2963 	i = ddi_dma_alloc_handle(instance->dip, &obj->dma_attr,
2964 	    DDI_DMA_SLEEP, NULL, &obj->dma_handle);
2965 	if (i != DDI_SUCCESS) {
2966 
2967 		switch (i) {
2968 			case DDI_DMA_BADATTR :
2969 				con_log(CL_ANN, (CE_WARN,
2970 				"Failed ddi_dma_alloc_handle- Bad attribute"));
2971 				break;
2972 			case DDI_DMA_NORESOURCES :
2973 				con_log(CL_ANN, (CE_WARN,
2974 				"Failed ddi_dma_alloc_handle- No Resources"));
2975 				break;
2976 			default :
2977 				con_log(CL_ANN, (CE_WARN,
2978 				"Failed ddi_dma_alloc_handle: "
2979 				"unknown status %d", i));
2980 				break;
2981 		}
2982 
2983 		return (-1);
2984 	}
2985 
2986 	if ((ddi_dma_mem_alloc(obj->dma_handle, obj->size, &tmp_endian_attr,
2987 	    DDI_DMA_RDWR | DDI_DMA_STREAMING, DDI_DMA_SLEEP, NULL,
2988 	    &obj->buffer, &alen, &obj->acc_handle) != DDI_SUCCESS) ||
2989 	    alen < obj->size) {
2990 
2991 		ddi_dma_free_handle(&obj->dma_handle);
2992 
2993 		con_log(CL_ANN, (CE_WARN, "Failed : ddi_dma_mem_alloc"));
2994 
2995 		return (-1);
2996 	}
2997 
2998 	if (ddi_dma_addr_bind_handle(obj->dma_handle, NULL, obj->buffer,
2999 	    obj->size, DDI_DMA_RDWR | DDI_DMA_STREAMING, DDI_DMA_SLEEP,
3000 	    NULL, &obj->dma_cookie[0], &cookie_cnt) != DDI_SUCCESS) {
3001 
3002 		ddi_dma_mem_free(&obj->acc_handle);
3003 		ddi_dma_free_handle(&obj->dma_handle);
3004 
3005 		con_log(CL_ANN, (CE_WARN, "Failed : ddi_dma_addr_bind_handle"));
3006 
3007 		return (-1);
3008 	}
3009 
3010 	if (mrsas_check_dma_handle(obj->dma_handle) != DDI_SUCCESS) {
3011 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
3012 		return (-1);
3013 	}
3014 
3015 	if (mrsas_check_acc_handle(obj->acc_handle) != DDI_SUCCESS) {
3016 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
3017 		return (-1);
3018 	}
3019 
3020 	return (cookie_cnt);
3021 }
3022 
3023 /*
3024  * mrsas_free_dma_obj(struct mrsas_instance *, dma_obj_t)
3025  *
3026  * De-allocate the memory and other resources for an dma object, which must
3027  * have been alloated by a previous call to mrsas_alloc_dma_obj()
3028  */
3029 static int
3030 mrsas_free_dma_obj(struct mrsas_instance *instance, dma_obj_t obj)
3031 {
3032 
3033 	if (mrsas_check_dma_handle(obj.dma_handle) != DDI_SUCCESS) {
3034 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
3035 		return (DDI_FAILURE);
3036 	}
3037 
3038 	if (mrsas_check_acc_handle(obj.acc_handle) != DDI_SUCCESS) {
3039 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
3040 		return (DDI_FAILURE);
3041 	}
3042 
3043 	(void) ddi_dma_unbind_handle(obj.dma_handle);
3044 	ddi_dma_mem_free(&obj.acc_handle);
3045 	ddi_dma_free_handle(&obj.dma_handle);
3046 
3047 	return (DDI_SUCCESS);
3048 }
3049 
3050 /*
3051  * mrsas_dma_alloc(instance_t *, struct scsi_pkt *, struct buf *,
3052  * int, int (*)())
3053  *
3054  * Allocate dma resources for a new scsi command
3055  */
3056 static int
3057 mrsas_dma_alloc(struct mrsas_instance *instance, struct scsi_pkt *pkt,
3058     struct buf *bp, int flags, int (*callback)())
3059 {
3060 	int	dma_flags;
3061 	int	(*cb)(caddr_t);
3062 	int	i;
3063 
3064 	ddi_dma_attr_t	tmp_dma_attr = mrsas_generic_dma_attr;
3065 	struct scsa_cmd	*acmd = PKT2CMD(pkt);
3066 
3067 	acmd->cmd_buf = bp;
3068 
3069 	if (bp->b_flags & B_READ) {
3070 		acmd->cmd_flags &= ~CFLAG_DMASEND;
3071 		dma_flags = DDI_DMA_READ;
3072 	} else {
3073 		acmd->cmd_flags |= CFLAG_DMASEND;
3074 		dma_flags = DDI_DMA_WRITE;
3075 	}
3076 
3077 	if (flags & PKT_CONSISTENT) {
3078 		acmd->cmd_flags |= CFLAG_CONSISTENT;
3079 		dma_flags |= DDI_DMA_CONSISTENT;
3080 	}
3081 
3082 	if (flags & PKT_DMA_PARTIAL) {
3083 		dma_flags |= DDI_DMA_PARTIAL;
3084 	}
3085 
3086 	dma_flags |= DDI_DMA_REDZONE;
3087 
3088 	cb = (callback == NULL_FUNC) ? DDI_DMA_DONTWAIT : DDI_DMA_SLEEP;
3089 
3090 	tmp_dma_attr.dma_attr_sgllen = instance->max_num_sge;
3091 	tmp_dma_attr.dma_attr_addr_hi = 0xffffffffffffffffull;
3092 
3093 	if ((i = ddi_dma_alloc_handle(instance->dip, &tmp_dma_attr,
3094 	    cb, 0, &acmd->cmd_dmahandle)) != DDI_SUCCESS) {
3095 		switch (i) {
3096 		case DDI_DMA_BADATTR:
3097 			bioerror(bp, EFAULT);
3098 			return (DDI_FAILURE);
3099 
3100 		case DDI_DMA_NORESOURCES:
3101 			bioerror(bp, 0);
3102 			return (DDI_FAILURE);
3103 
3104 		default:
3105 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_alloc_handle: "
3106 			    "impossible result (0x%x)", i));
3107 			bioerror(bp, EFAULT);
3108 			return (DDI_FAILURE);
3109 		}
3110 	}
3111 
3112 	i = ddi_dma_buf_bind_handle(acmd->cmd_dmahandle, bp, dma_flags,
3113 	    cb, 0, &acmd->cmd_dmacookies[0], &acmd->cmd_ncookies);
3114 
3115 	switch (i) {
3116 	case DDI_DMA_PARTIAL_MAP:
3117 		if ((dma_flags & DDI_DMA_PARTIAL) == 0) {
3118 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_buf_bind_handle: "
3119 			    "DDI_DMA_PARTIAL_MAP impossible"));
3120 			goto no_dma_cookies;
3121 		}
3122 
3123 		if (ddi_dma_numwin(acmd->cmd_dmahandle, &acmd->cmd_nwin) ==
3124 		    DDI_FAILURE) {
3125 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_numwin failed"));
3126 			goto no_dma_cookies;
3127 		}
3128 
3129 		if (ddi_dma_getwin(acmd->cmd_dmahandle, acmd->cmd_curwin,
3130 		    &acmd->cmd_dma_offset, &acmd->cmd_dma_len,
3131 		    &acmd->cmd_dmacookies[0], &acmd->cmd_ncookies) ==
3132 		    DDI_FAILURE) {
3133 
3134 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_getwin failed"));
3135 			goto no_dma_cookies;
3136 		}
3137 
3138 		goto get_dma_cookies;
3139 	case DDI_DMA_MAPPED:
3140 		acmd->cmd_nwin = 1;
3141 		acmd->cmd_dma_len = 0;
3142 		acmd->cmd_dma_offset = 0;
3143 
3144 get_dma_cookies:
3145 		i = 0;
3146 		acmd->cmd_dmacount = 0;
3147 		for (;;) {
3148 			acmd->cmd_dmacount +=
3149 			    acmd->cmd_dmacookies[i++].dmac_size;
3150 
3151 			if (i == instance->max_num_sge ||
3152 			    i == acmd->cmd_ncookies)
3153 				break;
3154 
3155 			ddi_dma_nextcookie(acmd->cmd_dmahandle,
3156 			    &acmd->cmd_dmacookies[i]);
3157 		}
3158 
3159 		acmd->cmd_cookie = i;
3160 		acmd->cmd_cookiecnt = i;
3161 
3162 		acmd->cmd_flags |= CFLAG_DMAVALID;
3163 
3164 		if (bp->b_bcount >= acmd->cmd_dmacount) {
3165 			pkt->pkt_resid = bp->b_bcount - acmd->cmd_dmacount;
3166 		} else {
3167 			pkt->pkt_resid = 0;
3168 		}
3169 
3170 		return (DDI_SUCCESS);
3171 	case DDI_DMA_NORESOURCES:
3172 		bioerror(bp, 0);
3173 		break;
3174 	case DDI_DMA_NOMAPPING:
3175 		bioerror(bp, EFAULT);
3176 		break;
3177 	case DDI_DMA_TOOBIG:
3178 		bioerror(bp, EINVAL);
3179 		break;
3180 	case DDI_DMA_INUSE:
3181 		con_log(CL_ANN, (CE_PANIC, "ddi_dma_buf_bind_handle:"
3182 		    " DDI_DMA_INUSE impossible"));
3183 		break;
3184 	default:
3185 		con_log(CL_ANN, (CE_PANIC, "ddi_dma_buf_bind_handle: "
3186 		    "impossible result (0x%x)", i));
3187 		break;
3188 	}
3189 
3190 no_dma_cookies:
3191 	ddi_dma_free_handle(&acmd->cmd_dmahandle);
3192 	acmd->cmd_dmahandle = NULL;
3193 	acmd->cmd_flags &= ~CFLAG_DMAVALID;
3194 	return (DDI_FAILURE);
3195 }
3196 
3197 /*
3198  * mrsas_dma_move(struct mrsas_instance *, struct scsi_pkt *, struct buf *)
3199  *
3200  * move dma resources to next dma window
3201  *
3202  */
3203 static int
3204 mrsas_dma_move(struct mrsas_instance *instance, struct scsi_pkt *pkt,
3205     struct buf *bp)
3206 {
3207 	int	i = 0;
3208 
3209 	struct scsa_cmd	*acmd = PKT2CMD(pkt);
3210 
3211 	/*
3212 	 * If there are no more cookies remaining in this window,
3213 	 * must move to the next window first.
3214 	 */
3215 	if (acmd->cmd_cookie == acmd->cmd_ncookies) {
3216 		if (acmd->cmd_curwin == acmd->cmd_nwin && acmd->cmd_nwin == 1) {
3217 			return (DDI_SUCCESS);
3218 		}
3219 
3220 		/* at last window, cannot move */
3221 		if (++acmd->cmd_curwin >= acmd->cmd_nwin) {
3222 			return (DDI_FAILURE);
3223 		}
3224 
3225 		if (ddi_dma_getwin(acmd->cmd_dmahandle, acmd->cmd_curwin,
3226 		    &acmd->cmd_dma_offset, &acmd->cmd_dma_len,
3227 		    &acmd->cmd_dmacookies[0], &acmd->cmd_ncookies) ==
3228 		    DDI_FAILURE) {
3229 			return (DDI_FAILURE);
3230 		}
3231 
3232 		acmd->cmd_cookie = 0;
3233 	} else {
3234 		/* still more cookies in this window - get the next one */
3235 		ddi_dma_nextcookie(acmd->cmd_dmahandle,
3236 		    &acmd->cmd_dmacookies[0]);
3237 	}
3238 
3239 	/* get remaining cookies in this window, up to our maximum */
3240 	for (;;) {
3241 		acmd->cmd_dmacount += acmd->cmd_dmacookies[i++].dmac_size;
3242 		acmd->cmd_cookie++;
3243 
3244 		if (i == instance->max_num_sge ||
3245 		    acmd->cmd_cookie == acmd->cmd_ncookies) {
3246 			break;
3247 		}
3248 
3249 		ddi_dma_nextcookie(acmd->cmd_dmahandle,
3250 		    &acmd->cmd_dmacookies[i]);
3251 	}
3252 
3253 	acmd->cmd_cookiecnt = i;
3254 
3255 	if (bp->b_bcount >= acmd->cmd_dmacount) {
3256 		pkt->pkt_resid = bp->b_bcount - acmd->cmd_dmacount;
3257 	} else {
3258 		pkt->pkt_resid = 0;
3259 	}
3260 
3261 	return (DDI_SUCCESS);
3262 }
3263 
3264 /*
3265  * build_cmd
3266  */
3267 static struct mrsas_cmd *
3268 build_cmd(struct mrsas_instance *instance, struct scsi_address *ap,
3269     struct scsi_pkt *pkt, uchar_t *cmd_done)
3270 {
3271 	uint16_t	flags = 0;
3272 	uint32_t	i;
3273 	uint32_t 	context;
3274 	uint32_t	sge_bytes;
3275 	ddi_acc_handle_t acc_handle;
3276 	struct mrsas_cmd		*cmd;
3277 	struct mrsas_sge64		*mfi_sgl;
3278 	struct scsa_cmd			*acmd = PKT2CMD(pkt);
3279 	struct mrsas_pthru_frame 	*pthru;
3280 	struct mrsas_io_frame		*ldio;
3281 
3282 	/* find out if this is logical or physical drive command.  */
3283 	acmd->islogical = MRDRV_IS_LOGICAL(ap);
3284 	acmd->device_id = MAP_DEVICE_ID(instance, ap);
3285 	*cmd_done = 0;
3286 
3287 	/* get the command packet */
3288 	if (!(cmd = get_mfi_pkt(instance))) {
3289 		return (NULL);
3290 	}
3291 
3292 	acc_handle = cmd->frame_dma_obj.acc_handle;
3293 
3294 	/* Clear the frame buffer and assign back the context id */
3295 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
3296 	ddi_put32(acc_handle, &cmd->frame->hdr.context, cmd->index);
3297 
3298 	cmd->pkt = pkt;
3299 	cmd->cmd = acmd;
3300 
3301 	/* lets get the command directions */
3302 	if (acmd->cmd_flags & CFLAG_DMASEND) {
3303 		flags = MFI_FRAME_DIR_WRITE;
3304 
3305 		if (acmd->cmd_flags & CFLAG_CONSISTENT) {
3306 			(void) ddi_dma_sync(acmd->cmd_dmahandle,
3307 			    acmd->cmd_dma_offset, acmd->cmd_dma_len,
3308 			    DDI_DMA_SYNC_FORDEV);
3309 		}
3310 	} else if (acmd->cmd_flags & ~CFLAG_DMASEND) {
3311 		flags = MFI_FRAME_DIR_READ;
3312 
3313 		if (acmd->cmd_flags & CFLAG_CONSISTENT) {
3314 			(void) ddi_dma_sync(acmd->cmd_dmahandle,
3315 			    acmd->cmd_dma_offset, acmd->cmd_dma_len,
3316 			    DDI_DMA_SYNC_FORCPU);
3317 		}
3318 	} else {
3319 		flags = MFI_FRAME_DIR_NONE;
3320 	}
3321 
3322 	flags |= MFI_FRAME_SGL64;
3323 
3324 	switch (pkt->pkt_cdbp[0]) {
3325 
3326 	/*
3327 	 * case SCMD_SYNCHRONIZE_CACHE:
3328 	 * 	flush_cache(instance);
3329 	 *	return_mfi_pkt(instance, cmd);
3330 	 *	*cmd_done = 1;
3331 	 *
3332 	 *	return (NULL);
3333 	 */
3334 
3335 	case SCMD_READ:
3336 	case SCMD_WRITE:
3337 	case SCMD_READ_G1:
3338 	case SCMD_WRITE_G1:
3339 		if (acmd->islogical) {
3340 			ldio = (struct mrsas_io_frame *)cmd->frame;
3341 
3342 			/*
3343 			 * preare the Logical IO frame:
3344 			 * 2nd bit is zero for all read cmds
3345 			 */
3346 			ddi_put8(acc_handle, &ldio->cmd,
3347 			    (pkt->pkt_cdbp[0] & 0x02) ? MFI_CMD_OP_LD_WRITE
3348 			    : MFI_CMD_OP_LD_READ);
3349 			ddi_put8(acc_handle, &ldio->cmd_status, 0x0);
3350 			ddi_put8(acc_handle, &ldio->scsi_status, 0x0);
3351 			ddi_put8(acc_handle, &ldio->target_id, acmd->device_id);
3352 			ddi_put16(acc_handle, &ldio->timeout, 0);
3353 			ddi_put8(acc_handle, &ldio->reserved_0, 0);
3354 			ddi_put16(acc_handle, &ldio->pad_0, 0);
3355 			ddi_put16(acc_handle, &ldio->flags, flags);
3356 
3357 			/* Initialize sense Information */
3358 			bzero(cmd->sense, SENSE_LENGTH);
3359 			ddi_put8(acc_handle, &ldio->sense_len, SENSE_LENGTH);
3360 			ddi_put32(acc_handle, &ldio->sense_buf_phys_addr_hi, 0);
3361 			ddi_put32(acc_handle, &ldio->sense_buf_phys_addr_lo,
3362 			    cmd->sense_phys_addr);
3363 			ddi_put32(acc_handle, &ldio->start_lba_hi, 0);
3364 			ddi_put8(acc_handle, &ldio->access_byte,
3365 			    (acmd->cmd_cdblen != 6) ? pkt->pkt_cdbp[1] : 0);
3366 			ddi_put8(acc_handle, &ldio->sge_count,
3367 			    acmd->cmd_cookiecnt);
3368 			mfi_sgl = (struct mrsas_sge64	*)&ldio->sgl;
3369 
3370 			context = ddi_get32(acc_handle, &ldio->context);
3371 
3372 			if (acmd->cmd_cdblen == CDB_GROUP0) {
3373 				ddi_put32(acc_handle, &ldio->lba_count, (
3374 				    (uint16_t)(pkt->pkt_cdbp[4])));
3375 
3376 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
3377 				    ((uint32_t)(pkt->pkt_cdbp[3])) |
3378 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 8) |
3379 				    ((uint32_t)((pkt->pkt_cdbp[1]) & 0x1F)
3380 				    << 16)));
3381 			} else if (acmd->cmd_cdblen == CDB_GROUP1) {
3382 				ddi_put32(acc_handle, &ldio->lba_count, (
3383 				    ((uint16_t)(pkt->pkt_cdbp[8])) |
3384 				    ((uint16_t)(pkt->pkt_cdbp[7]) << 8)));
3385 
3386 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
3387 				    ((uint32_t)(pkt->pkt_cdbp[5])) |
3388 				    ((uint32_t)(pkt->pkt_cdbp[4]) << 8) |
3389 				    ((uint32_t)(pkt->pkt_cdbp[3]) << 16) |
3390 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 24)));
3391 			} else if (acmd->cmd_cdblen == CDB_GROUP2) {
3392 				ddi_put32(acc_handle, &ldio->lba_count, (
3393 				    ((uint16_t)(pkt->pkt_cdbp[9])) |
3394 				    ((uint16_t)(pkt->pkt_cdbp[8]) << 8) |
3395 				    ((uint16_t)(pkt->pkt_cdbp[7]) << 16) |
3396 				    ((uint16_t)(pkt->pkt_cdbp[6]) << 24)));
3397 
3398 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
3399 				    ((uint32_t)(pkt->pkt_cdbp[5])) |
3400 				    ((uint32_t)(pkt->pkt_cdbp[4]) << 8) |
3401 				    ((uint32_t)(pkt->pkt_cdbp[3]) << 16) |
3402 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 24)));
3403 			} else if (acmd->cmd_cdblen == CDB_GROUP3) {
3404 				ddi_put32(acc_handle, &ldio->lba_count, (
3405 				    ((uint16_t)(pkt->pkt_cdbp[13])) |
3406 				    ((uint16_t)(pkt->pkt_cdbp[12]) << 8) |
3407 				    ((uint16_t)(pkt->pkt_cdbp[11]) << 16) |
3408 				    ((uint16_t)(pkt->pkt_cdbp[10]) << 24)));
3409 
3410 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
3411 				    ((uint32_t)(pkt->pkt_cdbp[9])) |
3412 				    ((uint32_t)(pkt->pkt_cdbp[8]) << 8) |
3413 				    ((uint32_t)(pkt->pkt_cdbp[7]) << 16) |
3414 				    ((uint32_t)(pkt->pkt_cdbp[6]) << 24)));
3415 
3416 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
3417 				    ((uint32_t)(pkt->pkt_cdbp[5])) |
3418 				    ((uint32_t)(pkt->pkt_cdbp[4]) << 8) |
3419 				    ((uint32_t)(pkt->pkt_cdbp[3]) << 16) |
3420 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 24)));
3421 			}
3422 
3423 			break;
3424 		}
3425 		/* fall through For all non-rd/wr cmds */
3426 	default:
3427 
3428 		switch (pkt->pkt_cdbp[0]) {
3429 		case SCMD_MODE_SENSE:
3430 		case SCMD_MODE_SENSE_G1: {
3431 			union scsi_cdb	*cdbp;
3432 			uint16_t	page_code;
3433 
3434 			cdbp = (void *)pkt->pkt_cdbp;
3435 			page_code = (uint16_t)cdbp->cdb_un.sg.scsi[0];
3436 			switch (page_code) {
3437 			case 0x3:
3438 			case 0x4:
3439 				(void) mrsas_mode_sense_build(pkt);
3440 				return_mfi_pkt(instance, cmd);
3441 				*cmd_done = 1;
3442 				return (NULL);
3443 			}
3444 			break;
3445 		}
3446 		default:
3447 			break;
3448 		}
3449 
3450 		pthru	= (struct mrsas_pthru_frame *)cmd->frame;
3451 
3452 		/* prepare the DCDB frame */
3453 		ddi_put8(acc_handle, &pthru->cmd, (acmd->islogical) ?
3454 		    MFI_CMD_OP_LD_SCSI : MFI_CMD_OP_PD_SCSI);
3455 		ddi_put8(acc_handle, &pthru->cmd_status, 0x0);
3456 		ddi_put8(acc_handle, &pthru->scsi_status, 0x0);
3457 		ddi_put8(acc_handle, &pthru->target_id, acmd->device_id);
3458 		ddi_put8(acc_handle, &pthru->lun, 0);
3459 		ddi_put8(acc_handle, &pthru->cdb_len, acmd->cmd_cdblen);
3460 		ddi_put16(acc_handle, &pthru->timeout, 0);
3461 		ddi_put16(acc_handle, &pthru->flags, flags);
3462 		ddi_put32(acc_handle, &pthru->data_xfer_len,
3463 		    acmd->cmd_dmacount);
3464 		ddi_put8(acc_handle, &pthru->sge_count, acmd->cmd_cookiecnt);
3465 		mfi_sgl			= (struct mrsas_sge64 *)&pthru->sgl;
3466 
3467 		bzero(cmd->sense, SENSE_LENGTH);
3468 		ddi_put8(acc_handle, &pthru->sense_len, SENSE_LENGTH);
3469 		ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_hi, 0);
3470 		ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_lo,
3471 		    cmd->sense_phys_addr);
3472 
3473 		context = ddi_get32(acc_handle, &pthru->context);
3474 		ddi_rep_put8(acc_handle, (uint8_t *)pkt->pkt_cdbp,
3475 		    (uint8_t *)pthru->cdb, acmd->cmd_cdblen, DDI_DEV_AUTOINCR);
3476 
3477 		break;
3478 	}
3479 #ifdef lint
3480 	context = context;
3481 #endif
3482 	/* prepare the scatter-gather list for the firmware */
3483 	for (i = 0; i < acmd->cmd_cookiecnt; i++, mfi_sgl++) {
3484 		ddi_put64(acc_handle, &mfi_sgl->phys_addr,
3485 		    acmd->cmd_dmacookies[i].dmac_laddress);
3486 		ddi_put32(acc_handle, &mfi_sgl->length,
3487 		    acmd->cmd_dmacookies[i].dmac_size);
3488 	}
3489 
3490 	sge_bytes = sizeof (struct mrsas_sge64)*acmd->cmd_cookiecnt;
3491 
3492 	cmd->frame_count = (sge_bytes / MRMFI_FRAME_SIZE) +
3493 	    ((sge_bytes % MRMFI_FRAME_SIZE) ? 1 : 0) + 1;
3494 
3495 	if (cmd->frame_count >= 8) {
3496 		cmd->frame_count = 8;
3497 	}
3498 
3499 	return (cmd);
3500 }
3501 
3502 /*
3503  * issue_mfi_pthru
3504  */
3505 static int
3506 issue_mfi_pthru(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
3507     struct mrsas_cmd *cmd, int mode)
3508 {
3509 	void		*ubuf;
3510 	uint32_t	kphys_addr = 0;
3511 	uint32_t	xferlen = 0;
3512 	uint_t		model;
3513 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
3514 	dma_obj_t			pthru_dma_obj;
3515 	struct mrsas_pthru_frame	*kpthru;
3516 	struct mrsas_pthru_frame	*pthru;
3517 	int i;
3518 	pthru = &cmd->frame->pthru;
3519 	kpthru = (struct mrsas_pthru_frame *)&ioctl->frame[0];
3520 
3521 	model = ddi_model_convert_from(mode & FMODELS);
3522 	if (model == DDI_MODEL_ILP32) {
3523 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_pthru: DDI_MODEL_LP32"));
3524 
3525 		xferlen	= kpthru->sgl.sge32[0].length;
3526 
3527 		ubuf	= (void *)(ulong_t)kpthru->sgl.sge32[0].phys_addr;
3528 	} else {
3529 #ifdef _ILP32
3530 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_pthru: DDI_MODEL_LP32"));
3531 		xferlen	= kpthru->sgl.sge32[0].length;
3532 		ubuf	= (void *)(ulong_t)kpthru->sgl.sge32[0].phys_addr;
3533 #else
3534 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_pthru: DDI_MODEL_LP64"));
3535 		xferlen	= kpthru->sgl.sge64[0].length;
3536 		ubuf	= (void *)(ulong_t)kpthru->sgl.sge64[0].phys_addr;
3537 #endif
3538 	}
3539 
3540 	if (xferlen) {
3541 		/* means IOCTL requires DMA */
3542 		/* allocate the data transfer buffer */
3543 		pthru_dma_obj.size = xferlen;
3544 		pthru_dma_obj.dma_attr = mrsas_generic_dma_attr;
3545 		pthru_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
3546 		pthru_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
3547 		pthru_dma_obj.dma_attr.dma_attr_sgllen = 1;
3548 		pthru_dma_obj.dma_attr.dma_attr_align = 1;
3549 
3550 		/* allocate kernel buffer for DMA */
3551 		if (mrsas_alloc_dma_obj(instance, &pthru_dma_obj,
3552 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
3553 			con_log(CL_ANN, (CE_WARN, "issue_mfi_pthru: "
3554 			    "could not allocate data transfer buffer."));
3555 			return (DDI_FAILURE);
3556 		}
3557 
3558 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
3559 		if (kpthru->flags & MFI_FRAME_DIR_WRITE) {
3560 			for (i = 0; i < xferlen; i++) {
3561 				if (ddi_copyin((uint8_t *)ubuf+i,
3562 				    (uint8_t *)pthru_dma_obj.buffer+i,
3563 				    1, mode)) {
3564 					con_log(CL_ANN, (CE_WARN,
3565 					    "issue_mfi_pthru : "
3566 					    "copy from user space failed"));
3567 					return (DDI_FAILURE);
3568 				}
3569 			}
3570 		}
3571 
3572 		kphys_addr = pthru_dma_obj.dma_cookie[0].dmac_address;
3573 	}
3574 
3575 	ddi_put8(acc_handle, &pthru->cmd, kpthru->cmd);
3576 	ddi_put8(acc_handle, &pthru->sense_len, kpthru->sense_len);
3577 	ddi_put8(acc_handle, &pthru->cmd_status, 0);
3578 	ddi_put8(acc_handle, &pthru->scsi_status, 0);
3579 	ddi_put8(acc_handle, &pthru->target_id, kpthru->target_id);
3580 	ddi_put8(acc_handle, &pthru->lun, kpthru->lun);
3581 	ddi_put8(acc_handle, &pthru->cdb_len, kpthru->cdb_len);
3582 	ddi_put8(acc_handle, &pthru->sge_count, kpthru->sge_count);
3583 	ddi_put16(acc_handle, &pthru->timeout, kpthru->timeout);
3584 	ddi_put32(acc_handle, &pthru->data_xfer_len, kpthru->data_xfer_len);
3585 
3586 	ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_hi, 0);
3587 	/* pthru->sense_buf_phys_addr_lo = cmd->sense_phys_addr; */
3588 	ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_lo, 0);
3589 
3590 	ddi_rep_put8(acc_handle, (uint8_t *)kpthru->cdb, (uint8_t *)pthru->cdb,
3591 	    pthru->cdb_len, DDI_DEV_AUTOINCR);
3592 
3593 	ddi_put16(acc_handle, &pthru->flags, kpthru->flags & ~MFI_FRAME_SGL64);
3594 	ddi_put32(acc_handle, &pthru->sgl.sge32[0].length, xferlen);
3595 	ddi_put32(acc_handle, &pthru->sgl.sge32[0].phys_addr, kphys_addr);
3596 
3597 	cmd->sync_cmd = MRSAS_TRUE;
3598 	cmd->frame_count = 1;
3599 
3600 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
3601 		con_log(CL_ANN, (CE_WARN,
3602 		    "issue_mfi_pthru: fw_ioctl failed"));
3603 	} else {
3604 		if (xferlen && kpthru->flags & MFI_FRAME_DIR_READ) {
3605 			for (i = 0; i < xferlen; i++) {
3606 				if (ddi_copyout(
3607 				    (uint8_t *)pthru_dma_obj.buffer+i,
3608 				    (uint8_t *)ubuf+i, 1, mode)) {
3609 					con_log(CL_ANN, (CE_WARN,
3610 					    "issue_mfi_pthru : "
3611 					    "copy to user space failed"));
3612 					return (DDI_FAILURE);
3613 				}
3614 			}
3615 		}
3616 	}
3617 
3618 	kpthru->cmd_status = ddi_get8(acc_handle, &pthru->cmd_status);
3619 	kpthru->scsi_status = ddi_get8(acc_handle, &pthru->scsi_status);
3620 
3621 	con_log(CL_ANN, (CE_NOTE, "issue_mfi_pthru: cmd_status %x, "
3622 	    "scsi_status %x", kpthru->cmd_status, kpthru->scsi_status));
3623 
3624 	if (xferlen) {
3625 		/* free kernel buffer */
3626 		if (mrsas_free_dma_obj(instance, pthru_dma_obj) != DDI_SUCCESS)
3627 			return (DDI_FAILURE);
3628 	}
3629 
3630 	return (DDI_SUCCESS);
3631 }
3632 
3633 /*
3634  * issue_mfi_dcmd
3635  */
3636 static int
3637 issue_mfi_dcmd(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
3638     struct mrsas_cmd *cmd, int mode)
3639 {
3640 	void		*ubuf;
3641 	uint32_t	kphys_addr = 0;
3642 	uint32_t	xferlen = 0;
3643 	uint32_t	model;
3644 	dma_obj_t	dcmd_dma_obj;
3645 	struct mrsas_dcmd_frame	*kdcmd;
3646 	struct mrsas_dcmd_frame	*dcmd;
3647 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
3648 	int i;
3649 	dcmd = &cmd->frame->dcmd;
3650 	kdcmd = (struct mrsas_dcmd_frame *)&ioctl->frame[0];
3651 
3652 	model = ddi_model_convert_from(mode & FMODELS);
3653 	if (model == DDI_MODEL_ILP32) {
3654 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_dcmd: DDI_MODEL_ILP32"));
3655 
3656 		xferlen	= kdcmd->sgl.sge32[0].length;
3657 
3658 		ubuf	= (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
3659 	} else {
3660 #ifdef _ILP32
3661 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_dcmd: DDI_MODEL_ILP32"));
3662 		xferlen	= kdcmd->sgl.sge32[0].length;
3663 		ubuf	= (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
3664 #else
3665 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_dcmd: DDI_MODEL_LP64"));
3666 		xferlen	= kdcmd->sgl.sge64[0].length;
3667 		ubuf	= (void *)(ulong_t)kdcmd->sgl.sge64[0].phys_addr;
3668 #endif
3669 	}
3670 	if (xferlen) {
3671 		/* means IOCTL requires DMA */
3672 		/* allocate the data transfer buffer */
3673 		dcmd_dma_obj.size = xferlen;
3674 		dcmd_dma_obj.dma_attr = mrsas_generic_dma_attr;
3675 		dcmd_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
3676 		dcmd_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
3677 		dcmd_dma_obj.dma_attr.dma_attr_sgllen = 1;
3678 		dcmd_dma_obj.dma_attr.dma_attr_align = 1;
3679 
3680 		/* allocate kernel buffer for DMA */
3681 		if (mrsas_alloc_dma_obj(instance, &dcmd_dma_obj,
3682 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
3683 			con_log(CL_ANN, (CE_WARN, "issue_mfi_dcmd: "
3684 			    "could not allocate data transfer buffer."));
3685 			return (DDI_FAILURE);
3686 		}
3687 
3688 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
3689 		if (kdcmd->flags & MFI_FRAME_DIR_WRITE) {
3690 			for (i = 0; i < xferlen; i++) {
3691 				if (ddi_copyin((uint8_t *)ubuf + i,
3692 				    (uint8_t *)dcmd_dma_obj.buffer + i,
3693 				    1, mode)) {
3694 					con_log(CL_ANN, (CE_WARN,
3695 					    "issue_mfi_dcmd : "
3696 					    "copy from user space failed"));
3697 					return (DDI_FAILURE);
3698 				}
3699 			}
3700 		}
3701 
3702 		kphys_addr = dcmd_dma_obj.dma_cookie[0].dmac_address;
3703 	}
3704 
3705 	ddi_put8(acc_handle, &dcmd->cmd, kdcmd->cmd);
3706 	ddi_put8(acc_handle, &dcmd->cmd_status, 0);
3707 	ddi_put8(acc_handle, &dcmd->sge_count, kdcmd->sge_count);
3708 	ddi_put16(acc_handle, &dcmd->timeout, kdcmd->timeout);
3709 	ddi_put32(acc_handle, &dcmd->data_xfer_len, kdcmd->data_xfer_len);
3710 	ddi_put32(acc_handle, &dcmd->opcode, kdcmd->opcode);
3711 
3712 	ddi_rep_put8(acc_handle, (uint8_t *)kdcmd->mbox.b,
3713 	    (uint8_t *)dcmd->mbox.b, DCMD_MBOX_SZ, DDI_DEV_AUTOINCR);
3714 
3715 	ddi_put16(acc_handle, &dcmd->flags, kdcmd->flags & ~MFI_FRAME_SGL64);
3716 	ddi_put32(acc_handle, &dcmd->sgl.sge32[0].length, xferlen);
3717 	ddi_put32(acc_handle, &dcmd->sgl.sge32[0].phys_addr, kphys_addr);
3718 
3719 	cmd->sync_cmd = MRSAS_TRUE;
3720 	cmd->frame_count = 1;
3721 
3722 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
3723 		con_log(CL_ANN, (CE_WARN, "issue_mfi_dcmd: fw_ioctl failed"));
3724 	} else {
3725 		if (xferlen && (kdcmd->flags & MFI_FRAME_DIR_READ)) {
3726 			for (i = 0; i < xferlen; i++) {
3727 				if (ddi_copyout(
3728 				    (uint8_t *)dcmd_dma_obj.buffer + i,
3729 				    (uint8_t *)ubuf + i,
3730 				    1, mode)) {
3731 					con_log(CL_ANN, (CE_WARN,
3732 					    "issue_mfi_dcmd : "
3733 					    "copy to user space failed"));
3734 					return (DDI_FAILURE);
3735 				}
3736 			}
3737 		}
3738 	}
3739 
3740 	kdcmd->cmd_status = ddi_get8(acc_handle, &dcmd->cmd_status);
3741 
3742 	if (xferlen) {
3743 		/* free kernel buffer */
3744 		if (mrsas_free_dma_obj(instance, dcmd_dma_obj) != DDI_SUCCESS)
3745 			return (DDI_FAILURE);
3746 	}
3747 
3748 	return (DDI_SUCCESS);
3749 }
3750 
3751 /*
3752  * issue_mfi_smp
3753  */
3754 static int
3755 issue_mfi_smp(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
3756     struct mrsas_cmd *cmd, int mode)
3757 {
3758 	void		*request_ubuf;
3759 	void		*response_ubuf;
3760 	uint32_t	request_xferlen = 0;
3761 	uint32_t	response_xferlen = 0;
3762 	uint_t		model;
3763 	dma_obj_t			request_dma_obj;
3764 	dma_obj_t			response_dma_obj;
3765 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
3766 	struct mrsas_smp_frame		*ksmp;
3767 	struct mrsas_smp_frame		*smp;
3768 	struct mrsas_sge32		*sge32;
3769 #ifndef _ILP32
3770 	struct mrsas_sge64		*sge64;
3771 #endif
3772 	int i;
3773 	uint64_t			tmp_sas_addr;
3774 
3775 	smp = &cmd->frame->smp;
3776 	ksmp = (struct mrsas_smp_frame *)&ioctl->frame[0];
3777 
3778 	model = ddi_model_convert_from(mode & FMODELS);
3779 	if (model == DDI_MODEL_ILP32) {
3780 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: DDI_MODEL_ILP32"));
3781 
3782 		sge32			= &ksmp->sgl[0].sge32[0];
3783 		response_xferlen	= sge32[0].length;
3784 		request_xferlen		= sge32[1].length;
3785 		con_log(CL_ANN, (CE_NOTE, "issue_mfi_smp: "
3786 		    "response_xferlen = %x, request_xferlen = %x",
3787 		    response_xferlen, request_xferlen));
3788 
3789 		response_ubuf	= (void *)(ulong_t)sge32[0].phys_addr;
3790 		request_ubuf	= (void *)(ulong_t)sge32[1].phys_addr;
3791 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: "
3792 		    "response_ubuf = %p, request_ubuf = %p",
3793 		    response_ubuf, request_ubuf));
3794 	} else {
3795 #ifdef _ILP32
3796 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: DDI_MODEL_ILP32"));
3797 
3798 		sge32			= &ksmp->sgl[0].sge32[0];
3799 		response_xferlen	= sge32[0].length;
3800 		request_xferlen		= sge32[1].length;
3801 		con_log(CL_ANN, (CE_NOTE, "issue_mfi_smp: "
3802 		    "response_xferlen = %x, request_xferlen = %x",
3803 		    response_xferlen, request_xferlen));
3804 
3805 		response_ubuf	= (void *)(ulong_t)sge32[0].phys_addr;
3806 		request_ubuf	= (void *)(ulong_t)sge32[1].phys_addr;
3807 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: "
3808 		    "response_ubuf = %p, request_ubuf = %p",
3809 		    response_ubuf, request_ubuf));
3810 #else
3811 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: DDI_MODEL_LP64"));
3812 
3813 		sge64			= &ksmp->sgl[0].sge64[0];
3814 		response_xferlen	= sge64[0].length;
3815 		request_xferlen		= sge64[1].length;
3816 
3817 		response_ubuf	= (void *)(ulong_t)sge64[0].phys_addr;
3818 		request_ubuf	= (void *)(ulong_t)sge64[1].phys_addr;
3819 #endif
3820 	}
3821 	if (request_xferlen) {
3822 		/* means IOCTL requires DMA */
3823 		/* allocate the data transfer buffer */
3824 		request_dma_obj.size = request_xferlen;
3825 		request_dma_obj.dma_attr = mrsas_generic_dma_attr;
3826 		request_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
3827 		request_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
3828 		request_dma_obj.dma_attr.dma_attr_sgllen = 1;
3829 		request_dma_obj.dma_attr.dma_attr_align = 1;
3830 
3831 		/* allocate kernel buffer for DMA */
3832 		if (mrsas_alloc_dma_obj(instance, &request_dma_obj,
3833 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
3834 			con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
3835 			    "could not allocate data transfer buffer."));
3836 			return (DDI_FAILURE);
3837 		}
3838 
3839 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
3840 		for (i = 0; i < request_xferlen; i++) {
3841 			if (ddi_copyin((uint8_t *)request_ubuf + i,
3842 			    (uint8_t *)request_dma_obj.buffer + i,
3843 			    1, mode)) {
3844 				con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
3845 				    "copy from user space failed"));
3846 				return (DDI_FAILURE);
3847 			}
3848 		}
3849 	}
3850 
3851 	if (response_xferlen) {
3852 		/* means IOCTL requires DMA */
3853 		/* allocate the data transfer buffer */
3854 		response_dma_obj.size = response_xferlen;
3855 		response_dma_obj.dma_attr = mrsas_generic_dma_attr;
3856 		response_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
3857 		response_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
3858 		response_dma_obj.dma_attr.dma_attr_sgllen = 1;
3859 		response_dma_obj.dma_attr.dma_attr_align = 1;
3860 
3861 		/* allocate kernel buffer for DMA */
3862 		if (mrsas_alloc_dma_obj(instance, &response_dma_obj,
3863 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
3864 			con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
3865 			    "could not allocate data transfer buffer."));
3866 			return (DDI_FAILURE);
3867 		}
3868 
3869 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
3870 		for (i = 0; i < response_xferlen; i++) {
3871 			if (ddi_copyin((uint8_t *)response_ubuf + i,
3872 			    (uint8_t *)response_dma_obj.buffer + i,
3873 			    1, mode)) {
3874 				con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
3875 				    "copy from user space failed"));
3876 				return (DDI_FAILURE);
3877 			}
3878 		}
3879 	}
3880 
3881 	ddi_put8(acc_handle, &smp->cmd, ksmp->cmd);
3882 	ddi_put8(acc_handle, &smp->cmd_status, 0);
3883 	ddi_put8(acc_handle, &smp->connection_status, 0);
3884 	ddi_put8(acc_handle, &smp->sge_count, ksmp->sge_count);
3885 	/* smp->context		= ksmp->context; */
3886 	ddi_put16(acc_handle, &smp->timeout, ksmp->timeout);
3887 	ddi_put32(acc_handle, &smp->data_xfer_len, ksmp->data_xfer_len);
3888 
3889 	bcopy((void *)&ksmp->sas_addr, (void *)&tmp_sas_addr,
3890 	    sizeof (uint64_t));
3891 	ddi_put64(acc_handle, &smp->sas_addr, tmp_sas_addr);
3892 
3893 	ddi_put16(acc_handle, &smp->flags, ksmp->flags & ~MFI_FRAME_SGL64);
3894 
3895 	model = ddi_model_convert_from(mode & FMODELS);
3896 	if (model == DDI_MODEL_ILP32) {
3897 		con_log(CL_ANN1, (CE_NOTE,
3898 		    "issue_mfi_smp: DDI_MODEL_ILP32"));
3899 
3900 		sge32 = &smp->sgl[0].sge32[0];
3901 		ddi_put32(acc_handle, &sge32[0].length, response_xferlen);
3902 		ddi_put32(acc_handle, &sge32[0].phys_addr,
3903 		    response_dma_obj.dma_cookie[0].dmac_address);
3904 		ddi_put32(acc_handle, &sge32[1].length, request_xferlen);
3905 		ddi_put32(acc_handle, &sge32[1].phys_addr,
3906 		    request_dma_obj.dma_cookie[0].dmac_address);
3907 	} else {
3908 #ifdef _ILP32
3909 		con_log(CL_ANN1, (CE_NOTE,
3910 		    "issue_mfi_smp: DDI_MODEL_ILP32"));
3911 		sge32 = &smp->sgl[0].sge32[0];
3912 		ddi_put32(acc_handle, &sge32[0].length, response_xferlen);
3913 		ddi_put32(acc_handle, &sge32[0].phys_addr,
3914 		    response_dma_obj.dma_cookie[0].dmac_address);
3915 		ddi_put32(acc_handle, &sge32[1].length, request_xferlen);
3916 		ddi_put32(acc_handle, &sge32[1].phys_addr,
3917 		    request_dma_obj.dma_cookie[0].dmac_address);
3918 #else
3919 		con_log(CL_ANN1, (CE_NOTE,
3920 		    "issue_mfi_smp: DDI_MODEL_LP64"));
3921 		sge64 = &smp->sgl[0].sge64[0];
3922 		ddi_put32(acc_handle, &sge64[0].length, response_xferlen);
3923 		ddi_put64(acc_handle, &sge64[0].phys_addr,
3924 		    response_dma_obj.dma_cookie[0].dmac_address);
3925 		ddi_put32(acc_handle, &sge64[1].length, request_xferlen);
3926 		ddi_put64(acc_handle, &sge64[1].phys_addr,
3927 		    request_dma_obj.dma_cookie[0].dmac_address);
3928 #endif
3929 	}
3930 	con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp : "
3931 	    "smp->response_xferlen = %d, smp->request_xferlen = %d "
3932 	    "smp->data_xfer_len = %d", ddi_get32(acc_handle, &sge32[0].length),
3933 	    ddi_get32(acc_handle, &sge32[1].length),
3934 	    ddi_get32(acc_handle, &smp->data_xfer_len)));
3935 
3936 	cmd->sync_cmd = MRSAS_TRUE;
3937 	cmd->frame_count = 1;
3938 
3939 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
3940 		con_log(CL_ANN, (CE_WARN,
3941 		    "issue_mfi_smp: fw_ioctl failed"));
3942 	} else {
3943 		con_log(CL_ANN1, (CE_NOTE,
3944 		    "issue_mfi_smp: copy to user space"));
3945 
3946 		if (request_xferlen) {
3947 			for (i = 0; i < request_xferlen; i++) {
3948 				if (ddi_copyout(
3949 				    (uint8_t *)request_dma_obj.buffer +
3950 				    i, (uint8_t *)request_ubuf + i,
3951 				    1, mode)) {
3952 					con_log(CL_ANN, (CE_WARN,
3953 					    "issue_mfi_smp : copy to user space"
3954 					    " failed"));
3955 					return (DDI_FAILURE);
3956 				}
3957 			}
3958 		}
3959 
3960 		if (response_xferlen) {
3961 			for (i = 0; i < response_xferlen; i++) {
3962 				if (ddi_copyout(
3963 				    (uint8_t *)response_dma_obj.buffer
3964 				    + i, (uint8_t *)response_ubuf
3965 				    + i, 1, mode)) {
3966 					con_log(CL_ANN, (CE_WARN,
3967 					    "issue_mfi_smp : copy to "
3968 					    "user space failed"));
3969 					return (DDI_FAILURE);
3970 				}
3971 			}
3972 		}
3973 	}
3974 
3975 	ksmp->cmd_status = ddi_get8(acc_handle, &smp->cmd_status);
3976 	con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: smp->cmd_status = %d",
3977 	    ddi_get8(acc_handle, &smp->cmd_status)));
3978 
3979 
3980 	if (request_xferlen) {
3981 		/* free kernel buffer */
3982 		if (mrsas_free_dma_obj(instance, request_dma_obj) !=
3983 		    DDI_SUCCESS)
3984 			return (DDI_FAILURE);
3985 	}
3986 
3987 	if (response_xferlen) {
3988 		/* free kernel buffer */
3989 		if (mrsas_free_dma_obj(instance, response_dma_obj) !=
3990 		    DDI_SUCCESS)
3991 			return (DDI_FAILURE);
3992 	}
3993 
3994 	return (DDI_SUCCESS);
3995 }
3996 
3997 /*
3998  * issue_mfi_stp
3999  */
4000 static int
4001 issue_mfi_stp(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
4002     struct mrsas_cmd *cmd, int mode)
4003 {
4004 	void		*fis_ubuf;
4005 	void		*data_ubuf;
4006 	uint32_t	fis_xferlen = 0;
4007 	uint32_t	data_xferlen = 0;
4008 	uint_t		model;
4009 	dma_obj_t	fis_dma_obj;
4010 	dma_obj_t	data_dma_obj;
4011 	struct mrsas_stp_frame	*kstp;
4012 	struct mrsas_stp_frame	*stp;
4013 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
4014 	int i;
4015 
4016 	stp = &cmd->frame->stp;
4017 	kstp = (struct mrsas_stp_frame *)&ioctl->frame[0];
4018 
4019 	model = ddi_model_convert_from(mode & FMODELS);
4020 	if (model == DDI_MODEL_ILP32) {
4021 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_stp: DDI_MODEL_ILP32"));
4022 
4023 		fis_xferlen	= kstp->sgl.sge32[0].length;
4024 		data_xferlen	= kstp->sgl.sge32[1].length;
4025 
4026 		fis_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[0].phys_addr;
4027 		data_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[1].phys_addr;
4028 	}
4029 	else
4030 	{
4031 #ifdef _ILP32
4032 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_stp: DDI_MODEL_ILP32"));
4033 
4034 		fis_xferlen	= kstp->sgl.sge32[0].length;
4035 		data_xferlen	= kstp->sgl.sge32[1].length;
4036 
4037 		fis_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[0].phys_addr;
4038 		data_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[1].phys_addr;
4039 #else
4040 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_stp: DDI_MODEL_LP64"));
4041 
4042 		fis_xferlen	= kstp->sgl.sge64[0].length;
4043 		data_xferlen	= kstp->sgl.sge64[1].length;
4044 
4045 		fis_ubuf	= (void *)(ulong_t)kstp->sgl.sge64[0].phys_addr;
4046 		data_ubuf	= (void *)(ulong_t)kstp->sgl.sge64[1].phys_addr;
4047 #endif
4048 	}
4049 
4050 
4051 	if (fis_xferlen) {
4052 		con_log(CL_ANN, (CE_NOTE, "issue_mfi_stp: "
4053 		    "fis_ubuf = %p fis_xferlen = %x", fis_ubuf, fis_xferlen));
4054 
4055 		/* means IOCTL requires DMA */
4056 		/* allocate the data transfer buffer */
4057 		fis_dma_obj.size = fis_xferlen;
4058 		fis_dma_obj.dma_attr = mrsas_generic_dma_attr;
4059 		fis_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
4060 		fis_dma_obj.dma_attr.dma_attr_count_max	= 0xFFFFFFFFU;
4061 		fis_dma_obj.dma_attr.dma_attr_sgllen = 1;
4062 		fis_dma_obj.dma_attr.dma_attr_align = 1;
4063 
4064 		/* allocate kernel buffer for DMA */
4065 		if (mrsas_alloc_dma_obj(instance, &fis_dma_obj,
4066 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
4067 			con_log(CL_ANN, (CE_WARN, "issue_mfi_stp : "
4068 			    "could not allocate data transfer buffer."));
4069 			return (DDI_FAILURE);
4070 		}
4071 
4072 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
4073 		for (i = 0; i < fis_xferlen; i++) {
4074 			if (ddi_copyin((uint8_t *)fis_ubuf + i,
4075 			    (uint8_t *)fis_dma_obj.buffer + i, 1, mode)) {
4076 				con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: "
4077 				    "copy from user space failed"));
4078 				return (DDI_FAILURE);
4079 			}
4080 		}
4081 	}
4082 
4083 	if (data_xferlen) {
4084 		con_log(CL_ANN, (CE_NOTE, "issue_mfi_stp: data_ubuf = %p "
4085 		    "data_xferlen = %x", data_ubuf, data_xferlen));
4086 
4087 		/* means IOCTL requires DMA */
4088 		/* allocate the data transfer buffer */
4089 		data_dma_obj.size = data_xferlen;
4090 		data_dma_obj.dma_attr = mrsas_generic_dma_attr;
4091 		data_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
4092 		data_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
4093 		data_dma_obj.dma_attr.dma_attr_sgllen = 1;
4094 		data_dma_obj.dma_attr.dma_attr_align = 1;
4095 
4096 /* allocate kernel buffer for DMA */
4097 		if (mrsas_alloc_dma_obj(instance, &data_dma_obj,
4098 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
4099 			con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: "
4100 			    "could not allocate data transfer buffer."));
4101 			return (DDI_FAILURE);
4102 		}
4103 
4104 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
4105 		for (i = 0; i < data_xferlen; i++) {
4106 			if (ddi_copyin((uint8_t *)data_ubuf + i,
4107 			    (uint8_t *)data_dma_obj.buffer + i, 1, mode)) {
4108 				con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: "
4109 				    "copy from user space failed"));
4110 				return (DDI_FAILURE);
4111 			}
4112 		}
4113 	}
4114 
4115 	ddi_put8(acc_handle, &stp->cmd, kstp->cmd);
4116 	ddi_put8(acc_handle, &stp->cmd_status, 0);
4117 	ddi_put8(acc_handle, &stp->connection_status, 0);
4118 	ddi_put8(acc_handle, &stp->target_id, kstp->target_id);
4119 	ddi_put8(acc_handle, &stp->sge_count, kstp->sge_count);
4120 
4121 	ddi_put16(acc_handle, &stp->timeout, kstp->timeout);
4122 	ddi_put32(acc_handle, &stp->data_xfer_len, kstp->data_xfer_len);
4123 
4124 	ddi_rep_put8(acc_handle, (uint8_t *)kstp->fis, (uint8_t *)stp->fis, 10,
4125 	    DDI_DEV_AUTOINCR);
4126 
4127 	ddi_put16(acc_handle, &stp->flags, kstp->flags & ~MFI_FRAME_SGL64);
4128 	ddi_put32(acc_handle, &stp->stp_flags, kstp->stp_flags);
4129 	ddi_put32(acc_handle, &stp->sgl.sge32[0].length, fis_xferlen);
4130 	ddi_put32(acc_handle, &stp->sgl.sge32[0].phys_addr,
4131 	    fis_dma_obj.dma_cookie[0].dmac_address);
4132 	ddi_put32(acc_handle, &stp->sgl.sge32[1].length, data_xferlen);
4133 	ddi_put32(acc_handle, &stp->sgl.sge32[1].phys_addr,
4134 	    data_dma_obj.dma_cookie[0].dmac_address);
4135 
4136 	cmd->sync_cmd = MRSAS_TRUE;
4137 	cmd->frame_count = 1;
4138 
4139 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
4140 		con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: fw_ioctl failed"));
4141 	} else {
4142 
4143 		if (fis_xferlen) {
4144 			for (i = 0; i < fis_xferlen; i++) {
4145 				if (ddi_copyout(
4146 				    (uint8_t *)fis_dma_obj.buffer + i,
4147 				    (uint8_t *)fis_ubuf + i, 1, mode)) {
4148 					con_log(CL_ANN, (CE_WARN,
4149 					    "issue_mfi_stp : copy to "
4150 					    "user space failed"));
4151 					return (DDI_FAILURE);
4152 				}
4153 			}
4154 		}
4155 	}
4156 	if (data_xferlen) {
4157 		for (i = 0; i < data_xferlen; i++) {
4158 			if (ddi_copyout(
4159 			    (uint8_t *)data_dma_obj.buffer + i,
4160 			    (uint8_t *)data_ubuf + i, 1, mode)) {
4161 				con_log(CL_ANN, (CE_WARN,
4162 				    "issue_mfi_stp : copy to"
4163 				    " user space failed"));
4164 				return (DDI_FAILURE);
4165 			}
4166 		}
4167 	}
4168 
4169 	kstp->cmd_status = ddi_get8(acc_handle, &stp->cmd_status);
4170 
4171 	if (fis_xferlen) {
4172 		/* free kernel buffer */
4173 		if (mrsas_free_dma_obj(instance, fis_dma_obj) != DDI_SUCCESS)
4174 			return (DDI_FAILURE);
4175 	}
4176 
4177 	if (data_xferlen) {
4178 		/* free kernel buffer */
4179 		if (mrsas_free_dma_obj(instance, data_dma_obj) != DDI_SUCCESS)
4180 			return (DDI_FAILURE);
4181 	}
4182 
4183 	return (DDI_SUCCESS);
4184 }
4185 
4186 /*
4187  * fill_up_drv_ver
4188  */
4189 static void
4190 fill_up_drv_ver(struct mrsas_drv_ver *dv)
4191 {
4192 	(void) memset(dv, 0, sizeof (struct mrsas_drv_ver));
4193 
4194 	(void) memcpy(dv->signature, "$LSI LOGIC$", strlen("$LSI LOGIC$"));
4195 	(void) memcpy(dv->os_name, "Solaris", strlen("Solaris"));
4196 	(void) memcpy(dv->drv_name, "mr_sas", strlen("mr_sas"));
4197 	(void) memcpy(dv->drv_ver, MRSAS_VERSION, strlen(MRSAS_VERSION));
4198 	(void) memcpy(dv->drv_rel_date, MRSAS_RELDATE,
4199 	    strlen(MRSAS_RELDATE));
4200 }
4201 
4202 /*
4203  * handle_drv_ioctl
4204  */
4205 static int
4206 handle_drv_ioctl(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
4207     int mode)
4208 {
4209 	int	i;
4210 	int	rval = DDI_SUCCESS;
4211 	int	*props = NULL;
4212 	void	*ubuf;
4213 
4214 	uint8_t		*pci_conf_buf;
4215 	uint32_t	xferlen;
4216 	uint32_t	num_props;
4217 	uint_t		model;
4218 	struct mrsas_dcmd_frame	*kdcmd;
4219 	struct mrsas_drv_ver	dv;
4220 	struct mrsas_pci_information pi;
4221 
4222 	kdcmd = (struct mrsas_dcmd_frame *)&ioctl->frame[0];
4223 
4224 	model = ddi_model_convert_from(mode & FMODELS);
4225 	if (model == DDI_MODEL_ILP32) {
4226 		con_log(CL_ANN1, (CE_NOTE,
4227 		    "handle_drv_ioctl: DDI_MODEL_ILP32"));
4228 
4229 		xferlen	= kdcmd->sgl.sge32[0].length;
4230 
4231 		ubuf = (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
4232 	} else {
4233 #ifdef _ILP32
4234 		con_log(CL_ANN1, (CE_NOTE,
4235 		    "handle_drv_ioctl: DDI_MODEL_ILP32"));
4236 		xferlen	= kdcmd->sgl.sge32[0].length;
4237 		ubuf = (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
4238 #else
4239 		con_log(CL_ANN1, (CE_NOTE,
4240 		    "handle_drv_ioctl: DDI_MODEL_LP64"));
4241 		xferlen	= kdcmd->sgl.sge64[0].length;
4242 		ubuf = (void *)(ulong_t)kdcmd->sgl.sge64[0].phys_addr;
4243 #endif
4244 	}
4245 	con_log(CL_ANN1, (CE_NOTE, "handle_drv_ioctl: "
4246 	    "dataBuf=%p size=%d bytes", ubuf, xferlen));
4247 
4248 	switch (kdcmd->opcode) {
4249 	case MRSAS_DRIVER_IOCTL_DRIVER_VERSION:
4250 		con_log(CL_ANN1, (CE_NOTE, "handle_drv_ioctl: "
4251 		    "MRSAS_DRIVER_IOCTL_DRIVER_VERSION"));
4252 
4253 		fill_up_drv_ver(&dv);
4254 
4255 		if (ddi_copyout(&dv, ubuf, xferlen, mode)) {
4256 			con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
4257 			    "MRSAS_DRIVER_IOCTL_DRIVER_VERSION : "
4258 			    "copy to user space failed"));
4259 			kdcmd->cmd_status = 1;
4260 			rval = 1;
4261 		} else {
4262 			kdcmd->cmd_status = 0;
4263 		}
4264 		break;
4265 	case MRSAS_DRIVER_IOCTL_PCI_INFORMATION:
4266 		con_log(CL_ANN1, (CE_NOTE, "handle_drv_ioctl: "
4267 		    "MRSAS_DRIVER_IOCTL_PCI_INFORMAITON"));
4268 
4269 		if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, instance->dip,
4270 		    0, "reg", &props, &num_props)) {
4271 			con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
4272 			    "MRSAS_DRIVER_IOCTL_PCI_INFORMATION : "
4273 			    "ddi_prop_look_int_array failed"));
4274 			rval = DDI_FAILURE;
4275 		} else {
4276 
4277 			pi.busNumber = (props[0] >> 16) & 0xFF;
4278 			pi.deviceNumber = (props[0] >> 11) & 0x1f;
4279 			pi.functionNumber = (props[0] >> 8) & 0x7;
4280 			ddi_prop_free((void *)props);
4281 		}
4282 
4283 		pci_conf_buf = (uint8_t *)&pi.pciHeaderInfo;
4284 
4285 		for (i = 0; i < (sizeof (struct mrsas_pci_information) -
4286 		    offsetof(struct mrsas_pci_information, pciHeaderInfo));
4287 		    i++) {
4288 			pci_conf_buf[i] =
4289 			    pci_config_get8(instance->pci_handle, i);
4290 		}
4291 
4292 		if (ddi_copyout(&pi, ubuf, xferlen, mode)) {
4293 			con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
4294 			    "MRSAS_DRIVER_IOCTL_PCI_INFORMATION : "
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 	default:
4303 		con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
4304 		    "invalid driver specific IOCTL opcode = 0x%x",
4305 		    kdcmd->opcode));
4306 		kdcmd->cmd_status = 1;
4307 		rval = DDI_FAILURE;
4308 		break;
4309 	}
4310 
4311 	return (rval);
4312 }
4313 
4314 /*
4315  * handle_mfi_ioctl
4316  */
4317 static int
4318 handle_mfi_ioctl(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
4319     int mode)
4320 {
4321 	int	rval = DDI_SUCCESS;
4322 
4323 	struct mrsas_header	*hdr;
4324 	struct mrsas_cmd	*cmd;
4325 
4326 	cmd = get_mfi_pkt(instance);
4327 
4328 	if (!cmd) {
4329 		con_log(CL_ANN, (CE_WARN, "mr_sas: "
4330 		    "failed to get a cmd packet"));
4331 		return (DDI_FAILURE);
4332 	}
4333 
4334 	/* Clear the frame buffer and assign back the context id */
4335 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
4336 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
4337 	    cmd->index);
4338 
4339 	hdr = (struct mrsas_header *)&ioctl->frame[0];
4340 
4341 	switch (ddi_get8(cmd->frame_dma_obj.acc_handle, &hdr->cmd)) {
4342 	case MFI_CMD_OP_DCMD:
4343 		rval = issue_mfi_dcmd(instance, ioctl, cmd, mode);
4344 		break;
4345 	case MFI_CMD_OP_SMP:
4346 		rval = issue_mfi_smp(instance, ioctl, cmd, mode);
4347 		break;
4348 	case MFI_CMD_OP_STP:
4349 		rval = issue_mfi_stp(instance, ioctl, cmd, mode);
4350 		break;
4351 	case MFI_CMD_OP_LD_SCSI:
4352 	case MFI_CMD_OP_PD_SCSI:
4353 		rval = issue_mfi_pthru(instance, ioctl, cmd, mode);
4354 		break;
4355 	default:
4356 		con_log(CL_ANN, (CE_WARN, "handle_mfi_ioctl: "
4357 		    "invalid mfi ioctl hdr->cmd = %d", hdr->cmd));
4358 		rval = DDI_FAILURE;
4359 		break;
4360 	}
4361 
4362 
4363 	return_mfi_pkt(instance, cmd);
4364 	if (mrsas_common_check(instance, cmd) != DDI_SUCCESS)
4365 		rval = DDI_FAILURE;
4366 	return (rval);
4367 }
4368 
4369 /*
4370  * AEN
4371  */
4372 static int
4373 handle_mfi_aen(struct mrsas_instance *instance, struct mrsas_aen *aen)
4374 {
4375 	int	rval = 0;
4376 
4377 	rval = register_mfi_aen(instance, instance->aen_seq_num,
4378 	    aen->class_locale_word);
4379 
4380 	aen->cmd_status = (uint8_t)rval;
4381 
4382 	return (rval);
4383 }
4384 
4385 static int
4386 register_mfi_aen(struct mrsas_instance *instance, uint32_t seq_num,
4387     uint32_t class_locale_word)
4388 {
4389 	int	ret_val;
4390 
4391 	struct mrsas_cmd	*cmd, *aen_cmd;
4392 	struct mrsas_dcmd_frame	*dcmd;
4393 	union mrsas_evt_class_locale	curr_aen;
4394 	union mrsas_evt_class_locale	prev_aen;
4395 
4396 	/*
4397 	 * If there an AEN pending already (aen_cmd), check if the
4398 	 * class_locale of that pending AEN is inclusive of the new
4399 	 * AEN request we currently have. If it is, then we don't have
4400 	 * to do anything. In other words, whichever events the current
4401 	 * AEN request is subscribing to, have already been subscribed
4402 	 * to.
4403 	 *
4404 	 * If the old_cmd is _not_ inclusive, then we have to abort
4405 	 * that command, form a class_locale that is superset of both
4406 	 * old and current and re-issue to the FW
4407 	 */
4408 
4409 	curr_aen.word = LE_32(class_locale_word);
4410 	curr_aen.members.locale = LE_16(curr_aen.members.locale);
4411 	aen_cmd = instance->aen_cmd;
4412 	if (aen_cmd) {
4413 		prev_aen.word = ddi_get32(aen_cmd->frame_dma_obj.acc_handle,
4414 		    &aen_cmd->frame->dcmd.mbox.w[1]);
4415 		prev_aen.word = LE_32(prev_aen.word);
4416 		prev_aen.members.locale = LE_16(prev_aen.members.locale);
4417 		/*
4418 		 * A class whose enum value is smaller is inclusive of all
4419 		 * higher values. If a PROGRESS (= -1) was previously
4420 		 * registered, then a new registration requests for higher
4421 		 * classes need not be sent to FW. They are automatically
4422 		 * included.
4423 		 *
4424 		 * Locale numbers don't have such hierarchy. They are bitmap
4425 		 * values
4426 		 */
4427 		if ((prev_aen.members.class <= curr_aen.members.class) &&
4428 		    !((prev_aen.members.locale & curr_aen.members.locale) ^
4429 		    curr_aen.members.locale)) {
4430 			/*
4431 			 * Previously issued event registration includes
4432 			 * current request. Nothing to do.
4433 			 */
4434 
4435 			return (0);
4436 		} else {
4437 			curr_aen.members.locale |= prev_aen.members.locale;
4438 
4439 			if (prev_aen.members.class < curr_aen.members.class)
4440 				curr_aen.members.class = prev_aen.members.class;
4441 
4442 			ret_val = abort_aen_cmd(instance, aen_cmd);
4443 
4444 			if (ret_val) {
4445 				con_log(CL_ANN, (CE_WARN, "register_mfi_aen: "
4446 				    "failed to abort prevous AEN command"));
4447 
4448 				return (ret_val);
4449 			}
4450 		}
4451 	} else {
4452 		curr_aen.word = class_locale_word;
4453 	}
4454 
4455 	cmd = get_mfi_pkt(instance);
4456 
4457 	if (!cmd)
4458 		return (ENOMEM);
4459 	/* Clear the frame buffer and assign back the context id */
4460 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
4461 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
4462 	    cmd->index);
4463 
4464 	dcmd = &cmd->frame->dcmd;
4465 
4466 	/* for(i = 0; i < DCMD_MBOX_SZ; i++) dcmd->mbox.b[i] = 0; */
4467 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
4468 
4469 	(void) memset(instance->mfi_evt_detail_obj.buffer, 0,
4470 	    sizeof (struct mrsas_evt_detail));
4471 
4472 	/* Prepare DCMD for aen registration */
4473 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
4474 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status, 0x0);
4475 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 1);
4476 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
4477 	    MFI_FRAME_DIR_READ);
4478 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
4479 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len,
4480 	    sizeof (struct mrsas_evt_detail));
4481 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
4482 	    MR_DCMD_CTRL_EVENT_WAIT);
4483 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->mbox.w[0], seq_num);
4484 	curr_aen.members.locale = LE_16(curr_aen.members.locale);
4485 	curr_aen.word = LE_32(curr_aen.word);
4486 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->mbox.w[1],
4487 	    curr_aen.word);
4488 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].phys_addr,
4489 	    instance->mfi_evt_detail_obj.dma_cookie[0].dmac_address);
4490 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].length,
4491 	    sizeof (struct mrsas_evt_detail));
4492 
4493 	instance->aen_seq_num = seq_num;
4494 
4495 
4496 	/*
4497 	 * Store reference to the cmd used to register for AEN. When an
4498 	 * application wants us to register for AEN, we have to abort this
4499 	 * cmd and re-register with a new EVENT LOCALE supplied by that app
4500 	 */
4501 	instance->aen_cmd = cmd;
4502 
4503 	cmd->frame_count = 1;
4504 
4505 	/* Issue the aen registration frame */
4506 	/* atomic_add_16 (&instance->fw_outstanding, 1); */
4507 	instance->func_ptr->issue_cmd(cmd, instance);
4508 
4509 	return (0);
4510 }
4511 
4512 static void
4513 display_scsi_inquiry(caddr_t scsi_inq)
4514 {
4515 #define	MAX_SCSI_DEVICE_CODE	14
4516 	int		i;
4517 	char		inquiry_buf[256] = {0};
4518 	int		len;
4519 	const char	*const scsi_device_types[] = {
4520 		"Direct-Access    ",
4521 		"Sequential-Access",
4522 		"Printer          ",
4523 		"Processor        ",
4524 		"WORM             ",
4525 		"CD-ROM           ",
4526 		"Scanner          ",
4527 		"Optical Device   ",
4528 		"Medium Changer   ",
4529 		"Communications   ",
4530 		"Unknown          ",
4531 		"Unknown          ",
4532 		"Unknown          ",
4533 		"Enclosure        ",
4534 	};
4535 
4536 	len = 0;
4537 
4538 	len += snprintf(inquiry_buf + len, 265 - len, "  Vendor: ");
4539 	for (i = 8; i < 16; i++) {
4540 		len += snprintf(inquiry_buf + len, 265 - len, "%c",
4541 		    scsi_inq[i]);
4542 	}
4543 
4544 	len += snprintf(inquiry_buf + len, 265 - len, "  Model: ");
4545 
4546 	for (i = 16; i < 32; i++) {
4547 		len += snprintf(inquiry_buf + len, 265 - len, "%c",
4548 		    scsi_inq[i]);
4549 	}
4550 
4551 	len += snprintf(inquiry_buf + len, 265 - len, "  Rev: ");
4552 
4553 	for (i = 32; i < 36; i++) {
4554 		len += snprintf(inquiry_buf + len, 265 - len, "%c",
4555 		    scsi_inq[i]);
4556 	}
4557 
4558 	len += snprintf(inquiry_buf + len, 265 - len, "\n");
4559 
4560 
4561 	i = scsi_inq[0] & 0x1f;
4562 
4563 
4564 	len += snprintf(inquiry_buf + len, 265 - len, "  Type:   %s ",
4565 	    i < MAX_SCSI_DEVICE_CODE ? scsi_device_types[i] :
4566 	    "Unknown          ");
4567 
4568 
4569 	len += snprintf(inquiry_buf + len, 265 - len,
4570 	    "                 ANSI SCSI revision: %02x", scsi_inq[2] & 0x07);
4571 
4572 	if ((scsi_inq[2] & 0x07) == 1 && (scsi_inq[3] & 0x0f) == 1) {
4573 		len += snprintf(inquiry_buf + len, 265 - len, " CCS\n");
4574 	} else {
4575 		len += snprintf(inquiry_buf + len, 265 - len, "\n");
4576 	}
4577 
4578 	con_log(CL_ANN1, (CE_CONT, inquiry_buf));
4579 }
4580 
4581 static int
4582 read_fw_status_reg_ppc(struct mrsas_instance *instance)
4583 {
4584 	return ((int)RD_OB_SCRATCH_PAD_0(instance));
4585 }
4586 
4587 static void
4588 issue_cmd_ppc(struct mrsas_cmd *cmd, struct mrsas_instance *instance)
4589 {
4590 	atomic_add_16(&instance->fw_outstanding, 1);
4591 
4592 	/* Issue the command to the FW */
4593 	WR_IB_QPORT((cmd->frame_phys_addr) |
4594 	    (((cmd->frame_count - 1) << 1) | 1), instance);
4595 }
4596 
4597 /*
4598  * issue_cmd_in_sync_mode
4599  */
4600 static int
4601 issue_cmd_in_sync_mode_ppc(struct mrsas_instance *instance,
4602     struct mrsas_cmd *cmd)
4603 {
4604 	int		i;
4605 	uint32_t	msecs = MFI_POLL_TIMEOUT_SECS * (10 * MILLISEC);
4606 
4607 	con_log(CL_ANN1, (CE_NOTE, "issue_cmd_in_sync_mode_ppc: called"));
4608 
4609 	cmd->cmd_status	= ENODATA;
4610 
4611 	WR_IB_QPORT((cmd->frame_phys_addr) |
4612 	    (((cmd->frame_count - 1) << 1) | 1), instance);
4613 
4614 	mutex_enter(&instance->int_cmd_mtx);
4615 
4616 	for (i = 0; i < msecs && (cmd->cmd_status == ENODATA); i++) {
4617 		cv_wait(&instance->int_cmd_cv, &instance->int_cmd_mtx);
4618 	}
4619 
4620 	mutex_exit(&instance->int_cmd_mtx);
4621 
4622 	con_log(CL_ANN1, (CE_NOTE, "issue_cmd_in_sync_mode_ppc: done"));
4623 
4624 	if (i < (msecs -1)) {
4625 		return (DDI_SUCCESS);
4626 	} else {
4627 		return (DDI_FAILURE);
4628 	}
4629 }
4630 
4631 /*
4632  * issue_cmd_in_poll_mode
4633  */
4634 static int
4635 issue_cmd_in_poll_mode_ppc(struct mrsas_instance *instance,
4636     struct mrsas_cmd *cmd)
4637 {
4638 	int		i;
4639 	uint16_t	flags;
4640 	uint32_t	msecs = MFI_POLL_TIMEOUT_SECS * MILLISEC;
4641 	struct mrsas_header *frame_hdr;
4642 
4643 	con_log(CL_ANN1, (CE_NOTE, "issue_cmd_in_poll_mode_ppc: called"));
4644 
4645 	frame_hdr = (struct mrsas_header *)cmd->frame;
4646 	ddi_put8(cmd->frame_dma_obj.acc_handle, &frame_hdr->cmd_status,
4647 	    MFI_CMD_STATUS_POLL_MODE);
4648 	flags = ddi_get16(cmd->frame_dma_obj.acc_handle, &frame_hdr->flags);
4649 	flags 	|= MFI_FRAME_DONT_POST_IN_REPLY_QUEUE;
4650 
4651 	ddi_put16(cmd->frame_dma_obj.acc_handle, &frame_hdr->flags, flags);
4652 
4653 	/* issue the frame using inbound queue port */
4654 	WR_IB_QPORT((cmd->frame_phys_addr) |
4655 	    (((cmd->frame_count - 1) << 1) | 1), instance);
4656 
4657 	/* wait for cmd_status to change from 0xFF */
4658 	for (i = 0; i < msecs && (
4659 	    ddi_get8(cmd->frame_dma_obj.acc_handle, &frame_hdr->cmd_status)
4660 	    == MFI_CMD_STATUS_POLL_MODE); i++) {
4661 		drv_usecwait(MILLISEC); /* wait for 1000 usecs */
4662 	}
4663 
4664 	if (ddi_get8(cmd->frame_dma_obj.acc_handle, &frame_hdr->cmd_status)
4665 	    == MFI_CMD_STATUS_POLL_MODE) {
4666 		con_log(CL_ANN, (CE_NOTE, "issue_cmd_in_poll_mode: "
4667 		    "cmd polling timed out"));
4668 		return (DDI_FAILURE);
4669 	}
4670 
4671 	return (DDI_SUCCESS);
4672 }
4673 
4674 static void
4675 enable_intr_ppc(struct mrsas_instance *instance)
4676 {
4677 	uint32_t	mask;
4678 
4679 	con_log(CL_ANN1, (CE_NOTE, "enable_intr_ppc: called"));
4680 
4681 	/* WR_OB_DOORBELL_CLEAR(0xFFFFFFFF, instance); */
4682 	WR_OB_DOORBELL_CLEAR(OB_DOORBELL_CLEAR_MASK, instance);
4683 
4684 	/* WR_OB_INTR_MASK(~0x80000000, instance); */
4685 	WR_OB_INTR_MASK(~(MFI_REPLY_2108_MESSAGE_INTR_MASK), instance);
4686 
4687 	/* dummy read to force PCI flush */
4688 	mask = RD_OB_INTR_MASK(instance);
4689 
4690 	con_log(CL_ANN1, (CE_NOTE, "enable_intr_ppc: "
4691 	    "outbound_intr_mask = 0x%x", mask));
4692 }
4693 
4694 static void
4695 disable_intr_ppc(struct mrsas_instance *instance)
4696 {
4697 	uint32_t	mask;
4698 
4699 	con_log(CL_ANN1, (CE_NOTE, "disable_intr_ppc: called"));
4700 
4701 	con_log(CL_ANN1, (CE_NOTE, "disable_intr_ppc: before : "
4702 	    "outbound_intr_mask = 0x%x", RD_OB_INTR_MASK(instance)));
4703 
4704 	/* WR_OB_INTR_MASK(0xFFFFFFFF, instance); */
4705 	WR_OB_INTR_MASK(OB_INTR_MASK, instance);
4706 
4707 	con_log(CL_ANN1, (CE_NOTE, "disable_intr_ppc: after : "
4708 	    "outbound_intr_mask = 0x%x", RD_OB_INTR_MASK(instance)));
4709 
4710 	/* dummy read to force PCI flush */
4711 	mask = RD_OB_INTR_MASK(instance);
4712 #ifdef lint
4713 	mask = mask;
4714 #endif
4715 }
4716 
4717 static int
4718 intr_ack_ppc(struct mrsas_instance *instance)
4719 {
4720 	uint32_t	status;
4721 	int ret = DDI_INTR_CLAIMED;
4722 
4723 	con_log(CL_ANN1, (CE_NOTE, "intr_ack_ppc: called"));
4724 
4725 	/* check if it is our interrupt */
4726 	status = RD_OB_INTR_STATUS(instance);
4727 
4728 	con_log(CL_ANN1, (CE_NOTE, "intr_ack_ppc: status = 0x%x", status));
4729 
4730 	if (!(status & MFI_REPLY_2108_MESSAGE_INTR)) {
4731 		ret = DDI_INTR_UNCLAIMED;
4732 	}
4733 
4734 	if (mrsas_check_acc_handle(instance->regmap_handle) != DDI_SUCCESS) {
4735 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
4736 		ret = DDI_INTR_UNCLAIMED;
4737 	}
4738 
4739 	if (ret == DDI_INTR_UNCLAIMED) {
4740 		return (ret);
4741 	}
4742 	/* clear the interrupt by writing back the same value */
4743 	WR_OB_DOORBELL_CLEAR(status, instance);
4744 
4745 	/* dummy READ */
4746 	status = RD_OB_INTR_STATUS(instance);
4747 
4748 	con_log(CL_ANN1, (CE_NOTE, "intr_ack_ppc: interrupt cleared"));
4749 
4750 	return (ret);
4751 }
4752 
4753 static int
4754 mrsas_common_check(struct mrsas_instance *instance,
4755     struct  mrsas_cmd *cmd)
4756 {
4757 	int ret = DDI_SUCCESS;
4758 
4759 	if (mrsas_check_dma_handle(cmd->frame_dma_obj.dma_handle) !=
4760 	    DDI_SUCCESS) {
4761 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
4762 		if (cmd->pkt != NULL) {
4763 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
4764 			cmd->pkt->pkt_statistics = 0;
4765 		}
4766 		ret = DDI_FAILURE;
4767 	}
4768 	if (mrsas_check_dma_handle(instance->mfi_internal_dma_obj.dma_handle)
4769 	    != DDI_SUCCESS) {
4770 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
4771 		if (cmd->pkt != NULL) {
4772 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
4773 			cmd->pkt->pkt_statistics = 0;
4774 		}
4775 		ret = DDI_FAILURE;
4776 	}
4777 	if (mrsas_check_dma_handle(instance->mfi_evt_detail_obj.dma_handle) !=
4778 	    DDI_SUCCESS) {
4779 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
4780 		if (cmd->pkt != NULL) {
4781 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
4782 			cmd->pkt->pkt_statistics = 0;
4783 		}
4784 		ret = DDI_FAILURE;
4785 	}
4786 	if (mrsas_check_acc_handle(instance->regmap_handle) != DDI_SUCCESS) {
4787 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
4788 
4789 		ddi_fm_acc_err_clear(instance->regmap_handle, DDI_FME_VER0);
4790 
4791 		if (cmd->pkt != NULL) {
4792 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
4793 			cmd->pkt->pkt_statistics = 0;
4794 		}
4795 		ret = DDI_FAILURE;
4796 	}
4797 
4798 	return (ret);
4799 }
4800 
4801 /*ARGSUSED*/
4802 static int
4803 mrsas_fm_error_cb(dev_info_t *dip, ddi_fm_error_t *err, const void *impl_data)
4804 {
4805 	/*
4806 	 * as the driver can always deal with an error in any dma or
4807 	 * access handle, we can just return the fme_status value.
4808 	 */
4809 	pci_ereport_post(dip, err, NULL);
4810 	return (err->fme_status);
4811 }
4812 
4813 static void
4814 mrsas_fm_init(struct mrsas_instance *instance)
4815 {
4816 	/* Need to change iblock to priority for new MSI intr */
4817 	ddi_iblock_cookie_t fm_ibc;
4818 
4819 	/* Only register with IO Fault Services if we have some capability */
4820 	if (instance->fm_capabilities) {
4821 		/* Adjust access and dma attributes for FMA */
4822 		endian_attr.devacc_attr_access = DDI_FLAGERR_ACC;
4823 		mrsas_generic_dma_attr.dma_attr_flags = DDI_DMA_FLAGERR;
4824 
4825 		/*
4826 		 * Register capabilities with IO Fault Services.
4827 		 * fm_capabilities will be updated to indicate
4828 		 * capabilities actually supported (not requested.)
4829 		 */
4830 
4831 		ddi_fm_init(instance->dip, &instance->fm_capabilities, &fm_ibc);
4832 
4833 		/*
4834 		 * Initialize pci ereport capabilities if ereport
4835 		 * capable (should always be.)
4836 		 */
4837 
4838 		if (DDI_FM_EREPORT_CAP(instance->fm_capabilities) ||
4839 		    DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
4840 			pci_ereport_setup(instance->dip);
4841 		}
4842 
4843 		/*
4844 		 * Register error callback if error callback capable.
4845 		 */
4846 		if (DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
4847 			ddi_fm_handler_register(instance->dip,
4848 			    mrsas_fm_error_cb, (void*) instance);
4849 		}
4850 	} else {
4851 		endian_attr.devacc_attr_access = DDI_DEFAULT_ACC;
4852 		mrsas_generic_dma_attr.dma_attr_flags = 0;
4853 	}
4854 }
4855 
4856 static void
4857 mrsas_fm_fini(struct mrsas_instance *instance)
4858 {
4859 	/* Only unregister FMA capabilities if registered */
4860 	if (instance->fm_capabilities) {
4861 		/*
4862 		 * Un-register error callback if error callback capable.
4863 		 */
4864 		if (DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
4865 			ddi_fm_handler_unregister(instance->dip);
4866 		}
4867 
4868 		/*
4869 		 * Release any resources allocated by pci_ereport_setup()
4870 		 */
4871 		if (DDI_FM_EREPORT_CAP(instance->fm_capabilities) ||
4872 		    DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
4873 			pci_ereport_teardown(instance->dip);
4874 		}
4875 
4876 		/* Unregister from IO Fault Services */
4877 		ddi_fm_fini(instance->dip);
4878 
4879 		/* Adjust access and dma attributes for FMA */
4880 		endian_attr.devacc_attr_access = DDI_DEFAULT_ACC;
4881 		mrsas_generic_dma_attr.dma_attr_flags = 0;
4882 	}
4883 }
4884 
4885 int
4886 mrsas_check_acc_handle(ddi_acc_handle_t handle)
4887 {
4888 	ddi_fm_error_t de;
4889 
4890 	if (handle == NULL) {
4891 		return (DDI_FAILURE);
4892 	}
4893 
4894 	ddi_fm_acc_err_get(handle, &de, DDI_FME_VERSION);
4895 
4896 	return (de.fme_status);
4897 }
4898 
4899 int
4900 mrsas_check_dma_handle(ddi_dma_handle_t handle)
4901 {
4902 	ddi_fm_error_t de;
4903 
4904 	if (handle == NULL) {
4905 		return (DDI_FAILURE);
4906 	}
4907 
4908 	ddi_fm_dma_err_get(handle, &de, DDI_FME_VERSION);
4909 
4910 	return (de.fme_status);
4911 }
4912 
4913 void
4914 mrsas_fm_ereport(struct mrsas_instance *instance, char *detail)
4915 {
4916 	uint64_t ena;
4917 	char buf[FM_MAX_CLASS];
4918 
4919 	(void) snprintf(buf, FM_MAX_CLASS, "%s.%s", DDI_FM_DEVICE, detail);
4920 	ena = fm_ena_generate(0, FM_ENA_FMT1);
4921 	if (DDI_FM_EREPORT_CAP(instance->fm_capabilities)) {
4922 		ddi_fm_ereport_post(instance->dip, buf, ena, DDI_NOSLEEP,
4923 		    FM_VERSION, DATA_TYPE_UINT8, FM_EREPORT_VERSION, NULL);
4924 	}
4925 }
4926 
4927 static int
4928 mrsas_add_intrs(struct mrsas_instance *instance, int intr_type)
4929 {
4930 
4931 	dev_info_t *dip = instance->dip;
4932 	int	avail, actual, count;
4933 	int	i, flag, ret;
4934 
4935 	con_log(CL_DLEVEL1, (CE_WARN, "mrsas_add_intrs: intr_type = %x",
4936 	    intr_type));
4937 
4938 	/* Get number of interrupts */
4939 	ret = ddi_intr_get_nintrs(dip, intr_type, &count);
4940 	if ((ret != DDI_SUCCESS) || (count == 0)) {
4941 		con_log(CL_ANN, (CE_WARN, "ddi_intr_get_nintrs() failed:"
4942 		    "ret %d count %d", ret, count));
4943 
4944 		return (DDI_FAILURE);
4945 	}
4946 
4947 	con_log(CL_DLEVEL1, (CE_WARN, "mrsas_add_intrs: count = %d ", count));
4948 
4949 	/* Get number of available interrupts */
4950 	ret = ddi_intr_get_navail(dip, intr_type, &avail);
4951 	if ((ret != DDI_SUCCESS) || (avail == 0)) {
4952 		con_log(CL_ANN, (CE_WARN, "ddi_intr_get_navail() failed:"
4953 		    "ret %d avail %d", ret, avail));
4954 
4955 		return (DDI_FAILURE);
4956 	}
4957 	con_log(CL_DLEVEL1, (CE_WARN, "mrsas_add_intrs: avail = %d ", avail));
4958 
4959 	/* Only one interrupt routine. So limit the count to 1 */
4960 	if (count > 1) {
4961 		count = 1;
4962 	}
4963 
4964 	/*
4965 	 * Allocate an array of interrupt handlers. Currently we support
4966 	 * only one interrupt. The framework can be extended later.
4967 	 */
4968 	instance->intr_size = count * sizeof (ddi_intr_handle_t);
4969 	instance->intr_htable = kmem_zalloc(instance->intr_size, KM_SLEEP);
4970 	ASSERT(instance->intr_htable);
4971 
4972 	flag = ((intr_type == DDI_INTR_TYPE_MSI) || (intr_type ==
4973 	    DDI_INTR_TYPE_MSIX)) ? DDI_INTR_ALLOC_STRICT:DDI_INTR_ALLOC_NORMAL;
4974 
4975 	/* Allocate interrupt */
4976 	ret = ddi_intr_alloc(dip, instance->intr_htable, intr_type, 0,
4977 	    count, &actual, flag);
4978 
4979 	if ((ret != DDI_SUCCESS) || (actual == 0)) {
4980 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
4981 		    "avail = %d", avail));
4982 		kmem_free(instance->intr_htable, instance->intr_size);
4983 		return (DDI_FAILURE);
4984 	}
4985 	if (actual < count) {
4986 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
4987 		    "Requested = %d  Received = %d", count, actual));
4988 	}
4989 	instance->intr_cnt = actual;
4990 
4991 	/*
4992 	 * Get the priority of the interrupt allocated.
4993 	 */
4994 	if ((ret = ddi_intr_get_pri(instance->intr_htable[0],
4995 	    &instance->intr_pri)) != DDI_SUCCESS) {
4996 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
4997 		    "get priority call failed"));
4998 
4999 		for (i = 0; i < actual; i++) {
5000 			(void) ddi_intr_free(instance->intr_htable[i]);
5001 		}
5002 		kmem_free(instance->intr_htable, instance->intr_size);
5003 		return (DDI_FAILURE);
5004 	}
5005 
5006 	/*
5007 	 * Test for high level mutex. we don't support them.
5008 	 */
5009 	if (instance->intr_pri >= ddi_intr_get_hilevel_pri()) {
5010 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
5011 		    "High level interrupts not supported."));
5012 
5013 		for (i = 0; i < actual; i++) {
5014 			(void) ddi_intr_free(instance->intr_htable[i]);
5015 		}
5016 		kmem_free(instance->intr_htable, instance->intr_size);
5017 		return (DDI_FAILURE);
5018 	}
5019 
5020 	con_log(CL_DLEVEL1, (CE_NOTE, "mrsas_add_intrs: intr_pri = 0x%x ",
5021 	    instance->intr_pri));
5022 
5023 	/* Call ddi_intr_add_handler() */
5024 	for (i = 0; i < actual; i++) {
5025 		ret = ddi_intr_add_handler(instance->intr_htable[i],
5026 		    (ddi_intr_handler_t *)mrsas_isr, (caddr_t)instance,
5027 		    (caddr_t)(uintptr_t)i);
5028 
5029 		if (ret != DDI_SUCCESS) {
5030 			con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs:"
5031 			    "failed %d", ret));
5032 
5033 			for (i = 0; i < actual; i++) {
5034 				(void) ddi_intr_free(instance->intr_htable[i]);
5035 			}
5036 			kmem_free(instance->intr_htable, instance->intr_size);
5037 			return (DDI_FAILURE);
5038 		}
5039 
5040 	}
5041 
5042 	con_log(CL_DLEVEL1, (CE_WARN, " ddi_intr_add_handler done"));
5043 
5044 	if ((ret = ddi_intr_get_cap(instance->intr_htable[0],
5045 	    &instance->intr_cap)) != DDI_SUCCESS) {
5046 		con_log(CL_ANN, (CE_WARN, "ddi_intr_get_cap() failed %d",
5047 		    ret));
5048 
5049 		/* Free already allocated intr */
5050 		for (i = 0; i < actual; i++) {
5051 			(void) ddi_intr_remove_handler(
5052 			    instance->intr_htable[i]);
5053 			(void) ddi_intr_free(instance->intr_htable[i]);
5054 		}
5055 		kmem_free(instance->intr_htable, instance->intr_size);
5056 		return (DDI_FAILURE);
5057 	}
5058 
5059 	if (instance->intr_cap &  DDI_INTR_FLAG_BLOCK) {
5060 		con_log(CL_ANN, (CE_WARN, "Calling ddi_intr_block _enable"));
5061 
5062 		(void) ddi_intr_block_enable(instance->intr_htable,
5063 		    instance->intr_cnt);
5064 	} else {
5065 		con_log(CL_ANN, (CE_NOTE, " calling ddi_intr_enable"));
5066 
5067 		for (i = 0; i < instance->intr_cnt; i++) {
5068 			(void) ddi_intr_enable(instance->intr_htable[i]);
5069 			con_log(CL_ANN, (CE_NOTE, "ddi intr enable returns "
5070 			    "%d", i));
5071 		}
5072 	}
5073 
5074 	return (DDI_SUCCESS);
5075 
5076 }
5077 
5078 
5079 static void
5080 mrsas_rem_intrs(struct mrsas_instance *instance)
5081 {
5082 	int i;
5083 
5084 	con_log(CL_ANN, (CE_NOTE, "mrsas_rem_intrs called"));
5085 
5086 	/* Disable all interrupts first */
5087 	if (instance->intr_cap & DDI_INTR_FLAG_BLOCK) {
5088 		(void) ddi_intr_block_disable(instance->intr_htable,
5089 		    instance->intr_cnt);
5090 	} else {
5091 		for (i = 0; i < instance->intr_cnt; i++) {
5092 			(void) ddi_intr_disable(instance->intr_htable[i]);
5093 		}
5094 	}
5095 
5096 	/* Remove all the handlers */
5097 
5098 	for (i = 0; i < instance->intr_cnt; i++) {
5099 		(void) ddi_intr_remove_handler(instance->intr_htable[i]);
5100 		(void) ddi_intr_free(instance->intr_htable[i]);
5101 	}
5102 
5103 	kmem_free(instance->intr_htable, instance->intr_size);
5104 }
5105 
5106 static int
5107 mrsas_tran_bus_config(dev_info_t *parent, uint_t flags,
5108     ddi_bus_config_op_t op, void *arg, dev_info_t **childp)
5109 {
5110 	struct mrsas_instance *instance;
5111 	int config;
5112 	int rval;
5113 
5114 	char *ptr = NULL;
5115 	int tgt, lun;
5116 
5117 	con_log(CL_ANN1, (CE_NOTE, "Bus config called for op = %x", op));
5118 
5119 	if ((instance = ddi_get_soft_state(mrsas_state,
5120 	    ddi_get_instance(parent))) == NULL) {
5121 		return (NDI_FAILURE);
5122 	}
5123 
5124 	/* Hold nexus during bus_config */
5125 	ndi_devi_enter(parent, &config);
5126 	switch (op) {
5127 	case BUS_CONFIG_ONE: {
5128 
5129 		/* parse wwid/target name out of name given */
5130 		if ((ptr = strchr((char *)arg, '@')) == NULL) {
5131 			rval = NDI_FAILURE;
5132 			break;
5133 		}
5134 		ptr++;
5135 
5136 		if (mrsas_parse_devname(arg, &tgt, &lun) != 0) {
5137 			rval = NDI_FAILURE;
5138 			break;
5139 		}
5140 
5141 		if (lun == 0) {
5142 			rval = mrsas_config_ld(instance, tgt, lun, childp);
5143 		} else {
5144 			rval = NDI_FAILURE;
5145 		}
5146 
5147 		break;
5148 	}
5149 	case BUS_CONFIG_DRIVER:
5150 	case BUS_CONFIG_ALL: {
5151 
5152 		rval = mrsas_config_all_devices(instance);
5153 
5154 		rval = NDI_SUCCESS;
5155 		break;
5156 	}
5157 	}
5158 
5159 	if (rval == NDI_SUCCESS) {
5160 		rval = ndi_busop_bus_config(parent, flags, op, arg, childp, 0);
5161 
5162 	}
5163 	ndi_devi_exit(parent, config);
5164 
5165 	con_log(CL_ANN1, (CE_NOTE, "mrsas_tran_bus_config: rval = %x",
5166 	    rval));
5167 	return (rval);
5168 }
5169 
5170 static int
5171 mrsas_config_all_devices(struct mrsas_instance *instance)
5172 {
5173 	int rval, tgt;
5174 
5175 	for (tgt = 0; tgt < MRDRV_MAX_LD; tgt++) {
5176 		(void) mrsas_config_ld(instance, tgt, 0, NULL);
5177 
5178 	}
5179 
5180 	rval = NDI_SUCCESS;
5181 	return (rval);
5182 }
5183 
5184 static int
5185 mrsas_parse_devname(char *devnm, int *tgt, int *lun)
5186 {
5187 	char devbuf[SCSI_MAXNAMELEN];
5188 	char *addr;
5189 	char *p,  *tp, *lp;
5190 	long num;
5191 
5192 	/* Parse dev name and address */
5193 	(void) strcpy(devbuf, devnm);
5194 	addr = "";
5195 	for (p = devbuf; *p != '\0'; p++) {
5196 		if (*p == '@') {
5197 			addr = p + 1;
5198 			*p = '\0';
5199 		} else if (*p == ':') {
5200 			*p = '\0';
5201 			break;
5202 		}
5203 	}
5204 
5205 	/* Parse target and lun */
5206 	for (p = tp = addr, lp = NULL; *p != '\0'; p++) {
5207 		if (*p == ',') {
5208 			lp = p + 1;
5209 			*p = '\0';
5210 			break;
5211 		}
5212 	}
5213 	if (tgt && tp) {
5214 		if (ddi_strtol(tp, NULL, 0x10, &num)) {
5215 			return (DDI_FAILURE); /* Can declare this as constant */
5216 		}
5217 			*tgt = (int)num;
5218 	}
5219 	if (lun && lp) {
5220 		if (ddi_strtol(lp, NULL, 0x10, &num)) {
5221 			return (DDI_FAILURE);
5222 		}
5223 			*lun = (int)num;
5224 	}
5225 	return (DDI_SUCCESS);  /* Success case */
5226 }
5227 
5228 static int
5229 mrsas_config_ld(struct mrsas_instance *instance, uint16_t tgt,
5230     uint8_t lun, dev_info_t **ldip)
5231 {
5232 	struct scsi_device *sd;
5233 	dev_info_t *child;
5234 	int rval;
5235 
5236 	con_log(CL_ANN1, (CE_NOTE, "mrsas_config_ld: t = %d l = %d",
5237 	    tgt, lun));
5238 
5239 	if ((child = mrsas_find_child(instance, tgt, lun)) != NULL) {
5240 		if (ldip) {
5241 			*ldip = child;
5242 		}
5243 		con_log(CL_ANN1, (CE_NOTE,
5244 		    "mrsas_config_ld: Child = %p found t = %d l = %d",
5245 		    (void *)child, tgt, lun));
5246 		return (NDI_SUCCESS);
5247 	}
5248 
5249 	sd = kmem_zalloc(sizeof (struct scsi_device), KM_SLEEP);
5250 	sd->sd_address.a_hba_tran = instance->tran;
5251 	sd->sd_address.a_target = (uint16_t)tgt;
5252 	sd->sd_address.a_lun = (uint8_t)lun;
5253 
5254 	if (scsi_hba_probe(sd, NULL) == SCSIPROBE_EXISTS)
5255 		rval = mrsas_config_scsi_device(instance, sd, ldip);
5256 	else
5257 		rval = NDI_FAILURE;
5258 
5259 	/* sd_unprobe is blank now. Free buffer manually */
5260 	if (sd->sd_inq) {
5261 		kmem_free(sd->sd_inq, SUN_INQSIZE);
5262 		sd->sd_inq = (struct scsi_inquiry *)NULL;
5263 	}
5264 
5265 	kmem_free(sd, sizeof (struct scsi_device));
5266 	con_log(CL_ANN1, (CE_NOTE, "mrsas_config_ld: return rval = %d",
5267 	    rval));
5268 	return (rval);
5269 }
5270 
5271 static int
5272 mrsas_config_scsi_device(struct mrsas_instance *instance,
5273     struct scsi_device *sd, dev_info_t **dipp)
5274 {
5275 	char *nodename = NULL;
5276 	char **compatible = NULL;
5277 	int ncompatible = 0;
5278 	char *childname;
5279 	dev_info_t *ldip = NULL;
5280 	int tgt = sd->sd_address.a_target;
5281 	int lun = sd->sd_address.a_lun;
5282 	int dtype = sd->sd_inq->inq_dtype & DTYPE_MASK;
5283 	int rval;
5284 
5285 	con_log(CL_ANN1, (CE_WARN, "mr_sas: scsi_device t%dL%d", tgt, lun));
5286 	scsi_hba_nodename_compatible_get(sd->sd_inq, NULL, dtype,
5287 	    NULL, &nodename, &compatible, &ncompatible);
5288 
5289 	if (nodename == NULL) {
5290 		con_log(CL_ANN1, (CE_WARN, "mr_sas: Found no compatible driver "
5291 		    "for t%dL%d", tgt, lun));
5292 		rval = NDI_FAILURE;
5293 		goto finish;
5294 	}
5295 
5296 	childname = (dtype == DTYPE_DIRECT) ? "sd" : nodename;
5297 	con_log(CL_ANN1, (CE_WARN,
5298 	    "mr_sas: Childname = %2s nodename = %s", childname, nodename));
5299 
5300 	/* Create a dev node */
5301 	rval = ndi_devi_alloc(instance->dip, childname, DEVI_SID_NODEID, &ldip);
5302 	con_log(CL_ANN1, (CE_WARN,
5303 	    "mr_sas_config_scsi_device: ndi_devi_alloc rval = %x", rval));
5304 	if (rval == NDI_SUCCESS) {
5305 		if (ndi_prop_update_int(DDI_DEV_T_NONE, ldip, "target", tgt) !=
5306 		    DDI_PROP_SUCCESS) {
5307 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to create "
5308 			    "property for t%dl%d target", tgt, lun));
5309 			rval = NDI_FAILURE;
5310 			goto finish;
5311 		}
5312 		if (ndi_prop_update_int(DDI_DEV_T_NONE, ldip, "lun", lun) !=
5313 		    DDI_PROP_SUCCESS) {
5314 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to create "
5315 			    "property for t%dl%d lun", tgt, lun));
5316 			rval = NDI_FAILURE;
5317 			goto finish;
5318 		}
5319 
5320 		if (ndi_prop_update_string_array(DDI_DEV_T_NONE, ldip,
5321 		    "compatible", compatible, ncompatible) !=
5322 		    DDI_PROP_SUCCESS) {
5323 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to create "
5324 			    "property for t%dl%d compatible", tgt, lun));
5325 			rval = NDI_FAILURE;
5326 			goto finish;
5327 		}
5328 
5329 		rval = ndi_devi_online(ldip, NDI_ONLINE_ATTACH);
5330 		if (rval != NDI_SUCCESS) {
5331 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to online "
5332 			    "t%dl%d", tgt, lun));
5333 			ndi_prop_remove_all(ldip);
5334 			(void) ndi_devi_free(ldip);
5335 		} else {
5336 			con_log(CL_ANN1, (CE_WARN, "mr_sas: online Done :"
5337 			    "0 t%dl%d", tgt, lun));
5338 		}
5339 
5340 	}
5341 finish:
5342 	if (dipp) {
5343 		*dipp = ldip;
5344 	}
5345 
5346 	con_log(CL_DLEVEL1, (CE_WARN,
5347 	    "mr_sas: config_scsi_device rval = %d t%dL%d",
5348 	    rval, tgt, lun));
5349 	scsi_hba_nodename_compatible_free(nodename, compatible);
5350 	return (rval);
5351 }
5352 
5353 /*ARGSUSED*/
5354 static int
5355 mrsas_service_evt(struct mrsas_instance *instance, int tgt, int lun, int event,
5356     uint64_t wwn)
5357 {
5358 	struct mrsas_eventinfo *mrevt = NULL;
5359 
5360 	con_log(CL_ANN1, (CE_NOTE,
5361 	    "mrsas_service_evt called for t%dl%d event = %d",
5362 	    tgt, lun, event));
5363 
5364 	if ((instance->taskq == NULL) || (mrevt =
5365 	    kmem_zalloc(sizeof (struct mrsas_eventinfo), KM_NOSLEEP)) == NULL) {
5366 		return (ENOMEM);
5367 	}
5368 
5369 	mrevt->instance = instance;
5370 	mrevt->tgt = tgt;
5371 	mrevt->lun = lun;
5372 	mrevt->event = event;
5373 
5374 	if ((ddi_taskq_dispatch(instance->taskq,
5375 	    (void (*)(void *))mrsas_issue_evt_taskq, mrevt, DDI_NOSLEEP)) !=
5376 	    DDI_SUCCESS) {
5377 		con_log(CL_ANN1, (CE_NOTE,
5378 		    "mr_sas: Event task failed for t%dl%d event = %d",
5379 		    tgt, lun, event));
5380 		kmem_free(mrevt, sizeof (struct mrsas_eventinfo));
5381 		return (DDI_FAILURE);
5382 	}
5383 	return (DDI_SUCCESS);
5384 }
5385 
5386 static void
5387 mrsas_issue_evt_taskq(struct mrsas_eventinfo *mrevt)
5388 {
5389 	struct mrsas_instance *instance = mrevt->instance;
5390 	dev_info_t *dip, *pdip;
5391 	int circ1 = 0;
5392 	char *devname;
5393 
5394 	con_log(CL_ANN1, (CE_NOTE, "mrsas_issue_evt_taskq: called for"
5395 	    " tgt %d lun %d event %d",
5396 	    mrevt->tgt, mrevt->lun, mrevt->event));
5397 
5398 	if (mrevt->tgt < MRDRV_MAX_LD && mrevt->lun == 0) {
5399 		dip = instance->mr_ld_list[mrevt->tgt].dip;
5400 	} else {
5401 		return;
5402 	}
5403 
5404 	ndi_devi_enter(instance->dip, &circ1);
5405 	switch (mrevt->event) {
5406 	case MRSAS_EVT_CONFIG_TGT:
5407 		if (dip == NULL) {
5408 
5409 			if (mrevt->lun == 0) {
5410 				(void) mrsas_config_ld(instance, mrevt->tgt,
5411 				    0, NULL);
5412 			}
5413 			con_log(CL_ANN1, (CE_NOTE,
5414 			    "mr_sas: EVT_CONFIG_TGT called:"
5415 			    " for tgt %d lun %d event %d",
5416 			    mrevt->tgt, mrevt->lun, mrevt->event));
5417 
5418 		} else {
5419 			con_log(CL_ANN1, (CE_NOTE,
5420 			    "mr_sas: EVT_CONFIG_TGT dip != NULL:"
5421 			    " for tgt %d lun %d event %d",
5422 			    mrevt->tgt, mrevt->lun, mrevt->event));
5423 		}
5424 		break;
5425 	case MRSAS_EVT_UNCONFIG_TGT:
5426 		if (dip) {
5427 			if (i_ddi_devi_attached(dip)) {
5428 
5429 				pdip = ddi_get_parent(dip);
5430 
5431 				devname = kmem_zalloc(MAXNAMELEN + 1, KM_SLEEP);
5432 				(void) ddi_deviname(dip, devname);
5433 
5434 				(void) devfs_clean(pdip, devname + 1,
5435 				    DV_CLEAN_FORCE);
5436 				kmem_free(devname, MAXNAMELEN + 1);
5437 			}
5438 			(void) ndi_devi_offline(dip, NDI_DEVI_REMOVE);
5439 			con_log(CL_ANN1, (CE_NOTE,
5440 			    "mr_sas: EVT_UNCONFIG_TGT called:"
5441 			    " for tgt %d lun %d event %d",
5442 			    mrevt->tgt, mrevt->lun, mrevt->event));
5443 		} else {
5444 			con_log(CL_ANN1, (CE_NOTE,
5445 			    "mr_sas: EVT_UNCONFIG_TGT dip == NULL:"
5446 			    " for tgt %d lun %d event %d",
5447 			    mrevt->tgt, mrevt->lun, mrevt->event));
5448 		}
5449 		break;
5450 	}
5451 	kmem_free(mrevt, sizeof (struct mrsas_eventinfo));
5452 	ndi_devi_exit(instance->dip, circ1);
5453 }
5454 
5455 static int
5456 mrsas_mode_sense_build(struct scsi_pkt *pkt)
5457 {
5458 	union scsi_cdb		*cdbp;
5459 	uint16_t 		page_code;
5460 	struct scsa_cmd		*acmd;
5461 	struct buf		*bp;
5462 	struct mode_header	*modehdrp;
5463 
5464 	cdbp = (void *)pkt->pkt_cdbp;
5465 	page_code = cdbp->cdb_un.sg.scsi[0];
5466 	acmd = PKT2CMD(pkt);
5467 	bp = acmd->cmd_buf;
5468 	if ((!bp) && bp->b_un.b_addr && bp->b_bcount && acmd->cmd_dmacount) {
5469 		con_log(CL_ANN1, (CE_WARN, "Failing MODESENSE Command"));
5470 		/* ADD pkt statistics as Command failed. */
5471 		return (NULL);
5472 	}
5473 
5474 	bp_mapin(bp);
5475 	bzero(bp->b_un.b_addr, bp->b_bcount);
5476 
5477 	switch (page_code) {
5478 		case 0x3: {
5479 			struct mode_format *page3p = NULL;
5480 			modehdrp = (struct mode_header *)(bp->b_un.b_addr);
5481 			modehdrp->bdesc_length = MODE_BLK_DESC_LENGTH;
5482 
5483 			page3p = (void *)((caddr_t)modehdrp +
5484 			    MODE_HEADER_LENGTH + MODE_BLK_DESC_LENGTH);
5485 			page3p->mode_page.code = 0x3;
5486 			page3p->mode_page.length =
5487 			    (uchar_t)(sizeof (struct mode_format));
5488 			page3p->data_bytes_sect = 512;
5489 			page3p->sect_track = 63;
5490 			break;
5491 		}
5492 		case 0x4: {
5493 			struct mode_geometry *page4p = NULL;
5494 			modehdrp = (struct mode_header *)(bp->b_un.b_addr);
5495 			modehdrp->bdesc_length = MODE_BLK_DESC_LENGTH;
5496 
5497 			page4p = (void *)((caddr_t)modehdrp +
5498 			    MODE_HEADER_LENGTH + MODE_BLK_DESC_LENGTH);
5499 			page4p->mode_page.code = 0x4;
5500 			page4p->mode_page.length =
5501 			    (uchar_t)(sizeof (struct mode_geometry));
5502 			page4p->heads = 255;
5503 			page4p->rpm = 10000;
5504 			break;
5505 		}
5506 		default:
5507 			break;
5508 	}
5509 	return (NULL);
5510 }
5511