xref: /illumos-gate/usr/src/uts/common/io/mr_sas/mr_sas.c (revision c10c16de)
1 /*
2  * mr_sas.c: source for mr_sas driver
3  *
4  * MegaRAID device driver for SAS2.0 controllers
5  * Copyright (c) 2008-2010, LSI Logic Corporation.
6  * All rights reserved.
7  *
8  * Version:
9  * Author:
10  *		Arun Chandrashekhar
11  *		Manju R
12  *		Rajesh Prabhakaran
13  * 		Seokmann Ju
14  *
15  * Redistribution and use in source and binary forms, with or without
16  * modification, are permitted provided that the following conditions are met:
17  *
18  * 1. Redistributions of source code must retain the above copyright notice,
19  *    this list of conditions and the following disclaimer.
20  *
21  * 2. Redistributions in binary form must reproduce the above copyright notice,
22  *    this list of conditions and the following disclaimer in the documentation
23  *    and/or other materials provided with the distribution.
24  *
25  * 3. Neither the name of the author nor the names of its contributors may be
26  *    used to endorse or promote products derived from this software without
27  *    specific prior written permission.
28  *
29  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
30  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
31  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
32  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
33  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
34  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
35  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
36  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
37  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
38  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
39  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
40  * DAMAGE.
41  */
42 
43 /*
44  * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
45  */
46 
47 #include <sys/types.h>
48 #include <sys/param.h>
49 #include <sys/file.h>
50 #include <sys/errno.h>
51 #include <sys/open.h>
52 #include <sys/cred.h>
53 #include <sys/modctl.h>
54 #include <sys/conf.h>
55 #include <sys/devops.h>
56 #include <sys/cmn_err.h>
57 #include <sys/kmem.h>
58 #include <sys/stat.h>
59 #include <sys/mkdev.h>
60 #include <sys/pci.h>
61 #include <sys/scsi/scsi.h>
62 #include <sys/ddi.h>
63 #include <sys/sunddi.h>
64 #include <sys/atomic.h>
65 #include <sys/signal.h>
66 #include <sys/byteorder.h>
67 #include <sys/sdt.h>
68 #include <sys/fs/dv_node.h>	/* devfs_clean */
69 
70 #include "mr_sas.h"
71 
72 /*
73  * FMA header files
74  */
75 #include <sys/ddifm.h>
76 #include <sys/fm/protocol.h>
77 #include <sys/fm/util.h>
78 #include <sys/fm/io/ddi.h>
79 
80 /*
81  * Local static data
82  */
83 static void	*mrsas_state = NULL;
84 static volatile boolean_t	mrsas_relaxed_ordering = B_TRUE;
85 static volatile int 	debug_level_g = CL_NONE;
86 static volatile int 	msi_enable = 1;
87 static volatile int 	ctio_enable = 1;
88 
89 /* Default Timeout value to issue online controller reset */
90 static volatile int  debug_timeout_g  = 0xB4;
91 /* Simulate consecutive firmware fault */
92 static volatile int  debug_fw_faults_after_ocr_g  = 0;
93 
94 #ifdef OCRDEBUG
95 /* Simulate three consecutive timeout for an IO */
96 static volatile int  debug_consecutive_timeout_after_ocr_g  = 0;
97 #endif
98 
99 #pragma weak scsi_hba_open
100 #pragma weak scsi_hba_close
101 #pragma weak scsi_hba_ioctl
102 
103 static ddi_dma_attr_t mrsas_generic_dma_attr = {
104 	DMA_ATTR_V0,		/* dma_attr_version */
105 	0,			/* low DMA address range */
106 	0xFFFFFFFFU,		/* high DMA address range */
107 	0xFFFFFFFFU,		/* DMA counter register  */
108 	8,			/* DMA address alignment */
109 	0x07,			/* DMA burstsizes  */
110 	1,			/* min DMA size */
111 	0xFFFFFFFFU,		/* max DMA size */
112 	0xFFFFFFFFU,		/* segment boundary */
113 	MRSAS_MAX_SGE_CNT,	/* dma_attr_sglen */
114 	512,			/* granularity of device */
115 	0			/* bus specific DMA flags */
116 };
117 
118 int32_t mrsas_max_cap_maxxfer = 0x1000000;
119 
120 /*
121  * cb_ops contains base level routines
122  */
123 static struct cb_ops mrsas_cb_ops = {
124 	mrsas_open,		/* open */
125 	mrsas_close,		/* close */
126 	nodev,			/* strategy */
127 	nodev,			/* print */
128 	nodev,			/* dump */
129 	nodev,			/* read */
130 	nodev,			/* write */
131 	mrsas_ioctl,		/* ioctl */
132 	nodev,			/* devmap */
133 	nodev,			/* mmap */
134 	nodev,			/* segmap */
135 	nochpoll,		/* poll */
136 	nodev,			/* cb_prop_op */
137 	0,			/* streamtab  */
138 	D_NEW | D_HOTPLUG,	/* cb_flag */
139 	CB_REV,			/* cb_rev */
140 	nodev,			/* cb_aread */
141 	nodev			/* cb_awrite */
142 };
143 
144 /*
145  * dev_ops contains configuration routines
146  */
147 static struct dev_ops mrsas_ops = {
148 	DEVO_REV,		/* rev, */
149 	0,			/* refcnt */
150 	mrsas_getinfo,		/* getinfo */
151 	nulldev,		/* identify */
152 	nulldev,		/* probe */
153 	mrsas_attach,		/* attach */
154 	mrsas_detach,		/* detach */
155 #ifdef  __sparc
156 	mrsas_reset,		/* reset */
157 #else	/* __sparc */
158 	nodev,
159 #endif  /* __sparc */
160 	&mrsas_cb_ops,		/* char/block ops */
161 	NULL,			/* bus ops */
162 	NULL,			/* power */
163 #ifdef	__sparc
164 	ddi_quiesce_not_needed
165 #else	/* __sparc */
166 	mrsas_quiesce		/* quiesce */
167 #endif	/* __sparc */
168 };
169 
170 char _depends_on[] = "misc/scsi";
171 
172 static struct modldrv modldrv = {
173 	&mod_driverops,		/* module type - driver */
174 	MRSAS_VERSION,
175 	&mrsas_ops,		/* driver ops */
176 };
177 
178 static struct modlinkage modlinkage = {
179 	MODREV_1,	/* ml_rev - must be MODREV_1 */
180 	&modldrv,	/* ml_linkage */
181 	NULL		/* end of driver linkage */
182 };
183 
184 static struct ddi_device_acc_attr endian_attr = {
185 	DDI_DEVICE_ATTR_V1,
186 	DDI_STRUCTURE_LE_ACC,
187 	DDI_STRICTORDER_ACC,
188 	DDI_DEFAULT_ACC
189 };
190 
191 
192 /*
193  * ************************************************************************** *
194  *                                                                            *
195  *         common entry points - for loadable kernel modules                  *
196  *                                                                            *
197  * ************************************************************************** *
198  */
199 
200 int
201 _init(void)
202 {
203 	int ret;
204 
205 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
206 
207 	ret = ddi_soft_state_init(&mrsas_state,
208 	    sizeof (struct mrsas_instance), 0);
209 
210 	if (ret != DDI_SUCCESS) {
211 		con_log(CL_ANN, (CE_WARN, "mr_sas: could not init state"));
212 		return (ret);
213 	}
214 
215 	if ((ret = scsi_hba_init(&modlinkage)) != DDI_SUCCESS) {
216 		con_log(CL_ANN, (CE_WARN, "mr_sas: could not init scsi hba"));
217 		ddi_soft_state_fini(&mrsas_state);
218 		return (ret);
219 	}
220 
221 	ret = mod_install(&modlinkage);
222 
223 	if (ret != DDI_SUCCESS) {
224 		con_log(CL_ANN, (CE_WARN, "mr_sas: mod_install failed"));
225 		scsi_hba_fini(&modlinkage);
226 		ddi_soft_state_fini(&mrsas_state);
227 	}
228 
229 	return (ret);
230 }
231 
232 int
233 _info(struct modinfo *modinfop)
234 {
235 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
236 
237 	return (mod_info(&modlinkage, modinfop));
238 }
239 
240 int
241 _fini(void)
242 {
243 	int ret;
244 
245 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
246 
247 	if ((ret = mod_remove(&modlinkage)) != DDI_SUCCESS)
248 		return (ret);
249 
250 	scsi_hba_fini(&modlinkage);
251 
252 	ddi_soft_state_fini(&mrsas_state);
253 
254 	return (ret);
255 }
256 
257 
258 /*
259  * ************************************************************************** *
260  *                                                                            *
261  *               common entry points - for autoconfiguration                  *
262  *                                                                            *
263  * ************************************************************************** *
264  */
265 
266 static int
267 mrsas_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
268 {
269 	int		instance_no;
270 	int		nregs;
271 	uint8_t		added_isr_f = 0;
272 	uint8_t		added_soft_isr_f = 0;
273 	uint8_t		create_devctl_node_f = 0;
274 	uint8_t		create_scsi_node_f = 0;
275 	uint8_t		create_ioc_node_f = 0;
276 	uint8_t		tran_alloc_f = 0;
277 	uint8_t 	irq;
278 	uint16_t	vendor_id;
279 	uint16_t	device_id;
280 	uint16_t	subsysvid;
281 	uint16_t	subsysid;
282 	uint16_t	command;
283 	off_t		reglength = 0;
284 	int		intr_types = 0;
285 	char		*data;
286 
287 	scsi_hba_tran_t		*tran;
288 	ddi_dma_attr_t  tran_dma_attr;
289 	struct mrsas_instance	*instance;
290 
291 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
292 
293 	/* CONSTCOND */
294 	ASSERT(NO_COMPETING_THREADS);
295 
296 	instance_no = ddi_get_instance(dip);
297 
298 	/*
299 	 * check to see whether this device is in a DMA-capable slot.
300 	 */
301 	if (ddi_slaveonly(dip) == DDI_SUCCESS) {
302 		con_log(CL_ANN, (CE_WARN,
303 		    "mr_sas%d: Device in slave-only slot, unused",
304 		    instance_no));
305 		return (DDI_FAILURE);
306 	}
307 
308 	switch (cmd) {
309 		case DDI_ATTACH:
310 			con_log(CL_DLEVEL1, (CE_NOTE, "mr_sas: DDI_ATTACH"));
311 			/* allocate the soft state for the instance */
312 			if (ddi_soft_state_zalloc(mrsas_state, instance_no)
313 			    != DDI_SUCCESS) {
314 				con_log(CL_ANN, (CE_WARN,
315 				    "mr_sas%d: Failed to allocate soft state",
316 				    instance_no));
317 
318 				return (DDI_FAILURE);
319 			}
320 
321 			instance = (struct mrsas_instance *)ddi_get_soft_state
322 			    (mrsas_state, instance_no);
323 
324 			if (instance == NULL) {
325 				con_log(CL_ANN, (CE_WARN,
326 				    "mr_sas%d: Bad soft state", instance_no));
327 
328 				ddi_soft_state_free(mrsas_state, instance_no);
329 
330 				return (DDI_FAILURE);
331 			}
332 
333 			bzero((caddr_t)instance,
334 			    sizeof (struct mrsas_instance));
335 
336 			instance->func_ptr = kmem_zalloc(
337 			    sizeof (struct mrsas_func_ptr), KM_SLEEP);
338 			ASSERT(instance->func_ptr);
339 
340 			/* Setup the PCI configuration space handles */
341 			if (pci_config_setup(dip, &instance->pci_handle) !=
342 			    DDI_SUCCESS) {
343 				con_log(CL_ANN, (CE_WARN,
344 				    "mr_sas%d: pci config setup failed ",
345 				    instance_no));
346 
347 				kmem_free(instance->func_ptr,
348 				    sizeof (struct mrsas_func_ptr));
349 				ddi_soft_state_free(mrsas_state, instance_no);
350 
351 				return (DDI_FAILURE);
352 			}
353 
354 			if (ddi_dev_nregs(dip, &nregs) != DDI_SUCCESS) {
355 				con_log(CL_ANN, (CE_WARN,
356 				    "mr_sas: failed to get registers."));
357 
358 				pci_config_teardown(&instance->pci_handle);
359 				kmem_free(instance->func_ptr,
360 				    sizeof (struct mrsas_func_ptr));
361 				ddi_soft_state_free(mrsas_state, instance_no);
362 
363 				return (DDI_FAILURE);
364 			}
365 
366 			vendor_id = pci_config_get16(instance->pci_handle,
367 			    PCI_CONF_VENID);
368 			device_id = pci_config_get16(instance->pci_handle,
369 			    PCI_CONF_DEVID);
370 
371 			subsysvid = pci_config_get16(instance->pci_handle,
372 			    PCI_CONF_SUBVENID);
373 			subsysid = pci_config_get16(instance->pci_handle,
374 			    PCI_CONF_SUBSYSID);
375 
376 			pci_config_put16(instance->pci_handle, PCI_CONF_COMM,
377 			    (pci_config_get16(instance->pci_handle,
378 			    PCI_CONF_COMM) | PCI_COMM_ME));
379 			irq = pci_config_get8(instance->pci_handle,
380 			    PCI_CONF_ILINE);
381 
382 			con_log(CL_DLEVEL1, (CE_CONT, "mr_sas%d: "
383 			    "0x%x:0x%x 0x%x:0x%x, irq:%d drv-ver:%s",
384 			    instance_no, vendor_id, device_id, subsysvid,
385 			    subsysid, irq, MRSAS_VERSION));
386 
387 			/* enable bus-mastering */
388 			command = pci_config_get16(instance->pci_handle,
389 			    PCI_CONF_COMM);
390 
391 			if (!(command & PCI_COMM_ME)) {
392 				command |= PCI_COMM_ME;
393 
394 				pci_config_put16(instance->pci_handle,
395 				    PCI_CONF_COMM, command);
396 
397 				con_log(CL_ANN, (CE_CONT, "mr_sas%d: "
398 				    "enable bus-mastering", instance_no));
399 			} else {
400 				con_log(CL_DLEVEL1, (CE_CONT, "mr_sas%d: "
401 				"bus-mastering already set", instance_no));
402 			}
403 
404 			/* initialize function pointers */
405 			if ((device_id == PCI_DEVICE_ID_LSI_2108VDE) ||
406 			    (device_id == PCI_DEVICE_ID_LSI_2108V)) {
407 				con_log(CL_DLEVEL1, (CE_CONT, "mr_sas%d: "
408 				    "2108V/DE detected", instance_no));
409 				instance->func_ptr->read_fw_status_reg =
410 				    read_fw_status_reg_ppc;
411 				instance->func_ptr->issue_cmd = issue_cmd_ppc;
412 				instance->func_ptr->issue_cmd_in_sync_mode =
413 				    issue_cmd_in_sync_mode_ppc;
414 				instance->func_ptr->issue_cmd_in_poll_mode =
415 				    issue_cmd_in_poll_mode_ppc;
416 				instance->func_ptr->enable_intr =
417 				    enable_intr_ppc;
418 				instance->func_ptr->disable_intr =
419 				    disable_intr_ppc;
420 				instance->func_ptr->intr_ack = intr_ack_ppc;
421 			} else {
422 				con_log(CL_ANN, (CE_WARN,
423 				    "mr_sas: Invalid device detected"));
424 
425 				pci_config_teardown(&instance->pci_handle);
426 				kmem_free(instance->func_ptr,
427 				    sizeof (struct mrsas_func_ptr));
428 				ddi_soft_state_free(mrsas_state, instance_no);
429 
430 				return (DDI_FAILURE);
431 			}
432 
433 			instance->baseaddress = pci_config_get32(
434 			    instance->pci_handle, PCI_CONF_BASE0);
435 			instance->baseaddress &= 0x0fffc;
436 
437 			instance->dip		= dip;
438 			instance->vendor_id	= vendor_id;
439 			instance->device_id	= device_id;
440 			instance->subsysvid	= subsysvid;
441 			instance->subsysid	= subsysid;
442 			instance->instance	= instance_no;
443 
444 			/* Initialize FMA */
445 			instance->fm_capabilities = ddi_prop_get_int(
446 			    DDI_DEV_T_ANY, instance->dip, DDI_PROP_DONTPASS,
447 			    "fm-capable", DDI_FM_EREPORT_CAPABLE |
448 			    DDI_FM_ACCCHK_CAPABLE | DDI_FM_DMACHK_CAPABLE
449 			    | DDI_FM_ERRCB_CAPABLE);
450 
451 			mrsas_fm_init(instance);
452 
453 			/* Initialize Interrupts */
454 			if ((ddi_dev_regsize(instance->dip,
455 			    REGISTER_SET_IO_2108, &reglength) != DDI_SUCCESS) ||
456 			    reglength < MINIMUM_MFI_MEM_SZ) {
457 				return (DDI_FAILURE);
458 			}
459 			if (reglength > DEFAULT_MFI_MEM_SZ) {
460 				reglength = DEFAULT_MFI_MEM_SZ;
461 				con_log(CL_DLEVEL1, (CE_NOTE,
462 				    "mr_sas: register length to map is "
463 				    "0x%lx bytes", reglength));
464 			}
465 			if (ddi_regs_map_setup(instance->dip,
466 			    REGISTER_SET_IO_2108, &instance->regmap, 0,
467 			    reglength, &endian_attr, &instance->regmap_handle)
468 			    != DDI_SUCCESS) {
469 				con_log(CL_ANN, (CE_NOTE,
470 				    "mr_sas: couldn't map control registers"));
471 				goto fail_attach;
472 			}
473 
474 			/*
475 			 * Disable Interrupt Now.
476 			 * Setup Software interrupt
477 			 */
478 			instance->func_ptr->disable_intr(instance);
479 
480 			if (ddi_prop_lookup_string(DDI_DEV_T_ANY, dip, 0,
481 			    "mrsas-enable-msi", &data) == DDI_SUCCESS) {
482 				if (strncmp(data, "no", 3) == 0) {
483 					msi_enable = 0;
484 					con_log(CL_ANN1, (CE_WARN,
485 					    "msi_enable = %d disabled",
486 					    msi_enable));
487 				}
488 				ddi_prop_free(data);
489 			}
490 
491 			con_log(CL_DLEVEL1, (CE_WARN, "msi_enable = %d",
492 			    msi_enable));
493 
494 			/* Check for all supported interrupt types */
495 			if (ddi_intr_get_supported_types(
496 			    dip, &intr_types) != DDI_SUCCESS) {
497 				con_log(CL_ANN, (CE_WARN,
498 				    "ddi_intr_get_supported_types() failed"));
499 				goto fail_attach;
500 			}
501 
502 			con_log(CL_DLEVEL1, (CE_NOTE,
503 			    "ddi_intr_get_supported_types() ret: 0x%x",
504 			    intr_types));
505 
506 			/* Initialize and Setup Interrupt handler */
507 			if (msi_enable && (intr_types & DDI_INTR_TYPE_MSIX)) {
508 				if (mrsas_add_intrs(instance,
509 				    DDI_INTR_TYPE_MSIX) != DDI_SUCCESS) {
510 					con_log(CL_ANN, (CE_WARN,
511 					    "MSIX interrupt query failed"));
512 					goto fail_attach;
513 				}
514 				instance->intr_type = DDI_INTR_TYPE_MSIX;
515 			} else if (msi_enable && (intr_types &
516 			    DDI_INTR_TYPE_MSI)) {
517 				if (mrsas_add_intrs(instance,
518 				    DDI_INTR_TYPE_MSI) != DDI_SUCCESS) {
519 					con_log(CL_ANN, (CE_WARN,
520 					    "MSI interrupt query failed"));
521 					goto fail_attach;
522 				}
523 				instance->intr_type = DDI_INTR_TYPE_MSI;
524 			} else if (intr_types & DDI_INTR_TYPE_FIXED) {
525 				msi_enable = 0;
526 				if (mrsas_add_intrs(instance,
527 				    DDI_INTR_TYPE_FIXED) != DDI_SUCCESS) {
528 					con_log(CL_ANN, (CE_WARN,
529 					    "FIXED interrupt query failed"));
530 					goto fail_attach;
531 				}
532 				instance->intr_type = DDI_INTR_TYPE_FIXED;
533 			} else {
534 				con_log(CL_ANN, (CE_WARN, "Device cannot "
535 				    "suppport either FIXED or MSI/X "
536 				    "interrupts"));
537 				goto fail_attach;
538 			}
539 
540 			added_isr_f = 1;
541 
542 			if (ddi_prop_lookup_string(DDI_DEV_T_ANY, dip, 0,
543 			    "mrsas-enable-ctio", &data) == DDI_SUCCESS) {
544 				if (strncmp(data, "no", 3) == 0) {
545 					ctio_enable = 0;
546 					con_log(CL_ANN1, (CE_WARN,
547 					    "ctio_enable = %d disabled",
548 					    ctio_enable));
549 				}
550 				ddi_prop_free(data);
551 			}
552 
553 			con_log(CL_DLEVEL1, (CE_WARN, "ctio_enable = %d",
554 			    ctio_enable));
555 
556 			/* setup the mfi based low level driver */
557 			if (init_mfi(instance) != DDI_SUCCESS) {
558 				con_log(CL_ANN, (CE_WARN, "mr_sas: "
559 				"could not initialize the low level driver"));
560 
561 				goto fail_attach;
562 			}
563 
564 			/* Initialize all Mutex */
565 			INIT_LIST_HEAD(&instance->completed_pool_list);
566 			mutex_init(&instance->completed_pool_mtx,
567 			    "completed_pool_mtx", MUTEX_DRIVER,
568 			    DDI_INTR_PRI(instance->intr_pri));
569 
570 			mutex_init(&instance->app_cmd_pool_mtx,
571 			    "app_cmd_pool_mtx",	MUTEX_DRIVER,
572 			    DDI_INTR_PRI(instance->intr_pri));
573 
574 			mutex_init(&instance->cmd_pend_mtx, "cmd_pend_mtx",
575 			    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
576 
577 			mutex_init(&instance->ocr_flags_mtx, "ocr_flags_mtx",
578 			    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
579 
580 			mutex_init(&instance->int_cmd_mtx, "int_cmd_mtx",
581 			    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
582 			cv_init(&instance->int_cmd_cv, NULL, CV_DRIVER, NULL);
583 
584 			mutex_init(&instance->cmd_pool_mtx, "cmd_pool_mtx",
585 			    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
586 
587 			instance->timeout_id = (timeout_id_t)-1;
588 
589 			/* Register our soft-isr for highlevel interrupts. */
590 			instance->isr_level = instance->intr_pri;
591 			if (instance->isr_level == HIGH_LEVEL_INTR) {
592 				if (ddi_add_softintr(dip, DDI_SOFTINT_HIGH,
593 				    &instance->soft_intr_id, NULL, NULL,
594 				    mrsas_softintr, (caddr_t)instance) !=
595 				    DDI_SUCCESS) {
596 					con_log(CL_ANN, (CE_WARN,
597 					    " Software ISR did not register"));
598 
599 					goto fail_attach;
600 				}
601 
602 				added_soft_isr_f = 1;
603 			}
604 
605 			/* Allocate a transport structure */
606 			tran = scsi_hba_tran_alloc(dip, SCSI_HBA_CANSLEEP);
607 
608 			if (tran == NULL) {
609 				con_log(CL_ANN, (CE_WARN,
610 				    "scsi_hba_tran_alloc failed"));
611 				goto fail_attach;
612 			}
613 
614 			tran_alloc_f = 1;
615 
616 			instance->tran = tran;
617 
618 			tran->tran_hba_private	= instance;
619 			tran->tran_tgt_init	= mrsas_tran_tgt_init;
620 			tran->tran_tgt_probe	= scsi_hba_probe;
621 			tran->tran_tgt_free	= mrsas_tran_tgt_free;
622 			tran->tran_init_pkt	= mrsas_tran_init_pkt;
623 			tran->tran_start	= mrsas_tran_start;
624 			tran->tran_abort	= mrsas_tran_abort;
625 			tran->tran_reset	= mrsas_tran_reset;
626 			tran->tran_getcap	= mrsas_tran_getcap;
627 			tran->tran_setcap	= mrsas_tran_setcap;
628 			tran->tran_destroy_pkt	= mrsas_tran_destroy_pkt;
629 			tran->tran_dmafree	= mrsas_tran_dmafree;
630 			tran->tran_sync_pkt	= mrsas_tran_sync_pkt;
631 			tran->tran_bus_config	= mrsas_tran_bus_config;
632 
633 			if (mrsas_relaxed_ordering)
634 				mrsas_generic_dma_attr.dma_attr_flags |=
635 				    DDI_DMA_RELAXED_ORDERING;
636 
637 
638 			tran_dma_attr = mrsas_generic_dma_attr;
639 			tran_dma_attr.dma_attr_sgllen = instance->max_num_sge;
640 
641 			/* Attach this instance of the hba */
642 			if (scsi_hba_attach_setup(dip, &tran_dma_attr, tran, 0)
643 			    != DDI_SUCCESS) {
644 				con_log(CL_ANN, (CE_WARN,
645 				    "scsi_hba_attach failed"));
646 
647 				goto fail_attach;
648 			}
649 
650 			/* create devctl node for cfgadm command */
651 			if (ddi_create_minor_node(dip, "devctl",
652 			    S_IFCHR, INST2DEVCTL(instance_no),
653 			    DDI_NT_SCSI_NEXUS, 0) == DDI_FAILURE) {
654 				con_log(CL_ANN, (CE_WARN,
655 				    "mr_sas: failed to create devctl node."));
656 
657 				goto fail_attach;
658 			}
659 
660 			create_devctl_node_f = 1;
661 
662 			/* create scsi node for cfgadm command */
663 			if (ddi_create_minor_node(dip, "scsi", S_IFCHR,
664 			    INST2SCSI(instance_no),
665 			    DDI_NT_SCSI_ATTACHMENT_POINT, 0) ==
666 			    DDI_FAILURE) {
667 				con_log(CL_ANN, (CE_WARN,
668 				    "mr_sas: failed to create scsi node."));
669 
670 				goto fail_attach;
671 			}
672 
673 			create_scsi_node_f = 1;
674 
675 			(void) sprintf(instance->iocnode, "%d:lsirdctl",
676 			    instance_no);
677 
678 			/*
679 			 * Create a node for applications
680 			 * for issuing ioctl to the driver.
681 			 */
682 			if (ddi_create_minor_node(dip, instance->iocnode,
683 			    S_IFCHR, INST2LSIRDCTL(instance_no),
684 			    DDI_PSEUDO, 0) == DDI_FAILURE) {
685 				con_log(CL_ANN, (CE_WARN,
686 				    "mr_sas: failed to create ioctl node."));
687 
688 				goto fail_attach;
689 			}
690 
691 			create_ioc_node_f = 1;
692 
693 			/* Create a taskq to handle dr events */
694 			if ((instance->taskq = ddi_taskq_create(dip,
695 			    "mrsas_dr_taskq", 1,
696 			    TASKQ_DEFAULTPRI, 0)) == NULL) {
697 				con_log(CL_ANN, (CE_WARN,
698 				    "mr_sas: failed to create taskq "));
699 				instance->taskq = NULL;
700 				goto fail_attach;
701 			}
702 
703 			/* enable interrupt */
704 			instance->func_ptr->enable_intr(instance);
705 
706 			/* initiate AEN */
707 			if (start_mfi_aen(instance)) {
708 				con_log(CL_ANN, (CE_WARN,
709 				    "mr_sas: failed to initiate AEN."));
710 				goto fail_initiate_aen;
711 			}
712 
713 			con_log(CL_DLEVEL1, (CE_NOTE,
714 			    "AEN started for instance %d.", instance_no));
715 
716 			/* Finally! We are on the air.  */
717 			ddi_report_dev(dip);
718 
719 			if (mrsas_check_acc_handle(instance->regmap_handle) !=
720 			    DDI_SUCCESS) {
721 				goto fail_attach;
722 			}
723 			if (mrsas_check_acc_handle(instance->pci_handle) !=
724 			    DDI_SUCCESS) {
725 				goto fail_attach;
726 			}
727 			instance->mr_ld_list =
728 			    kmem_zalloc(MRDRV_MAX_LD * sizeof (struct mrsas_ld),
729 			    KM_SLEEP);
730 			break;
731 		case DDI_PM_RESUME:
732 			con_log(CL_ANN, (CE_NOTE,
733 			    "mr_sas: DDI_PM_RESUME"));
734 			break;
735 		case DDI_RESUME:
736 			con_log(CL_ANN, (CE_NOTE,
737 			    "mr_sas: DDI_RESUME"));
738 			break;
739 		default:
740 			con_log(CL_ANN, (CE_WARN,
741 			    "mr_sas: invalid attach cmd=%x", cmd));
742 			return (DDI_FAILURE);
743 	}
744 
745 	return (DDI_SUCCESS);
746 
747 fail_initiate_aen:
748 fail_attach:
749 	if (create_devctl_node_f) {
750 		ddi_remove_minor_node(dip, "devctl");
751 	}
752 
753 	if (create_scsi_node_f) {
754 		ddi_remove_minor_node(dip, "scsi");
755 	}
756 
757 	if (create_ioc_node_f) {
758 		ddi_remove_minor_node(dip, instance->iocnode);
759 	}
760 
761 	if (tran_alloc_f) {
762 		scsi_hba_tran_free(tran);
763 	}
764 
765 
766 	if (added_soft_isr_f) {
767 		ddi_remove_softintr(instance->soft_intr_id);
768 	}
769 
770 	if (added_isr_f) {
771 		mrsas_rem_intrs(instance);
772 	}
773 
774 	if (instance && instance->taskq) {
775 		ddi_taskq_destroy(instance->taskq);
776 	}
777 
778 	mrsas_fm_ereport(instance, DDI_FM_DEVICE_NO_RESPONSE);
779 	ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
780 
781 	mrsas_fm_fini(instance);
782 
783 	pci_config_teardown(&instance->pci_handle);
784 
785 	ddi_soft_state_free(mrsas_state, instance_no);
786 
787 	con_log(CL_ANN, (CE_NOTE,
788 	    "mr_sas: return failure from mrsas_attach"));
789 
790 	return (DDI_FAILURE);
791 }
792 
793 /*ARGSUSED*/
794 static int
795 mrsas_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd,  void *arg, void **resultp)
796 {
797 	int	rval;
798 	int	mrsas_minor = getminor((dev_t)arg);
799 
800 	struct mrsas_instance	*instance;
801 
802 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
803 
804 	switch (cmd) {
805 		case DDI_INFO_DEVT2DEVINFO:
806 			instance = (struct mrsas_instance *)
807 			    ddi_get_soft_state(mrsas_state,
808 			    MINOR2INST(mrsas_minor));
809 
810 			if (instance == NULL) {
811 				*resultp = NULL;
812 				rval = DDI_FAILURE;
813 			} else {
814 				*resultp = instance->dip;
815 				rval = DDI_SUCCESS;
816 			}
817 			break;
818 		case DDI_INFO_DEVT2INSTANCE:
819 			*resultp = (void *)(intptr_t)
820 			    (MINOR2INST(getminor((dev_t)arg)));
821 			rval = DDI_SUCCESS;
822 			break;
823 		default:
824 			*resultp = NULL;
825 			rval = DDI_FAILURE;
826 	}
827 
828 	return (rval);
829 }
830 
831 static int
832 mrsas_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
833 {
834 	int	instance_no;
835 
836 	struct mrsas_instance	*instance;
837 
838 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
839 
840 	/* CONSTCOND */
841 	ASSERT(NO_COMPETING_THREADS);
842 
843 	instance_no = ddi_get_instance(dip);
844 
845 	instance = (struct mrsas_instance *)ddi_get_soft_state(mrsas_state,
846 	    instance_no);
847 
848 	if (!instance) {
849 		con_log(CL_ANN, (CE_WARN,
850 		    "mr_sas:%d could not get instance in detach",
851 		    instance_no));
852 
853 		return (DDI_FAILURE);
854 	}
855 
856 	con_log(CL_ANN, (CE_NOTE,
857 	    "mr_sas%d: detaching device 0x%4x:0x%4x:0x%4x:0x%4x",
858 	    instance_no, instance->vendor_id, instance->device_id,
859 	    instance->subsysvid, instance->subsysid));
860 
861 	switch (cmd) {
862 	case DDI_DETACH:
863 		con_log(CL_ANN, (CE_NOTE,
864 		    "mrsas_detach: DDI_DETACH"));
865 
866 		if (scsi_hba_detach(dip) != DDI_SUCCESS) {
867 			con_log(CL_ANN, (CE_WARN,
868 			    "mr_sas:%d failed to detach",
869 			    instance_no));
870 
871 			return (DDI_FAILURE);
872 		}
873 
874 		scsi_hba_tran_free(instance->tran);
875 
876 		flush_cache(instance);
877 
878 		if (abort_aen_cmd(instance, instance->aen_cmd)) {
879 			con_log(CL_ANN, (CE_WARN, "mrsas_detach: "
880 			    "failed to abort prevous AEN command"));
881 
882 			return (DDI_FAILURE);
883 		}
884 
885 		instance->func_ptr->disable_intr(instance);
886 
887 		if (instance->isr_level == HIGH_LEVEL_INTR) {
888 			ddi_remove_softintr(instance->soft_intr_id);
889 		}
890 
891 		mrsas_rem_intrs(instance);
892 
893 		if (instance->taskq) {
894 			ddi_taskq_destroy(instance->taskq);
895 		}
896 		kmem_free(instance->mr_ld_list, MRDRV_MAX_LD
897 		    * sizeof (struct mrsas_ld));
898 		free_space_for_mfi(instance);
899 
900 		mrsas_fm_fini(instance);
901 
902 		pci_config_teardown(&instance->pci_handle);
903 
904 		kmem_free(instance->func_ptr,
905 		    sizeof (struct mrsas_func_ptr));
906 
907 		if (instance->timeout_id != (timeout_id_t)-1) {
908 			(void) untimeout(instance->timeout_id);
909 			instance->timeout_id = (timeout_id_t)-1;
910 		}
911 		ddi_soft_state_free(mrsas_state, instance_no);
912 		break;
913 	case DDI_PM_SUSPEND:
914 		con_log(CL_ANN, (CE_NOTE,
915 		    "mrsas_detach: DDI_PM_SUSPEND"));
916 
917 		break;
918 	case DDI_SUSPEND:
919 		con_log(CL_ANN, (CE_NOTE,
920 		    "mrsas_detach: DDI_SUSPEND"));
921 
922 		break;
923 	default:
924 		con_log(CL_ANN, (CE_WARN,
925 		    "invalid detach command:0x%x", cmd));
926 		return (DDI_FAILURE);
927 	}
928 
929 	return (DDI_SUCCESS);
930 }
931 
932 /*
933  * ************************************************************************** *
934  *                                                                            *
935  *             common entry points - for character driver types               *
936  *                                                                            *
937  * ************************************************************************** *
938  */
939 static  int
940 mrsas_open(dev_t *dev, int openflags, int otyp, cred_t *credp)
941 {
942 	int	rval = 0;
943 
944 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
945 
946 	/* Check root permissions */
947 	if (drv_priv(credp) != 0) {
948 		con_log(CL_ANN, (CE_WARN,
949 		    "mr_sas: Non-root ioctl access denied!"));
950 		return (EPERM);
951 	}
952 
953 	/* Verify we are being opened as a character device */
954 	if (otyp != OTYP_CHR) {
955 		con_log(CL_ANN, (CE_WARN,
956 		    "mr_sas: ioctl node must be a char node"));
957 		return (EINVAL);
958 	}
959 
960 	if (ddi_get_soft_state(mrsas_state, MINOR2INST(getminor(*dev)))
961 	    == NULL) {
962 		return (ENXIO);
963 	}
964 
965 	if (scsi_hba_open) {
966 		rval = scsi_hba_open(dev, openflags, otyp, credp);
967 	}
968 
969 	return (rval);
970 }
971 
972 static  int
973 mrsas_close(dev_t dev, int openflags, int otyp, cred_t *credp)
974 {
975 	int	rval = 0;
976 
977 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
978 
979 	/* no need for locks! */
980 
981 	if (scsi_hba_close) {
982 		rval = scsi_hba_close(dev, openflags, otyp, credp);
983 	}
984 
985 	return (rval);
986 }
987 
988 static int
989 mrsas_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *credp,
990     int *rvalp)
991 {
992 	int	rval = 0;
993 
994 	struct mrsas_instance	*instance;
995 	struct mrsas_ioctl	*ioctl;
996 	struct mrsas_aen	aen;
997 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
998 
999 	instance = ddi_get_soft_state(mrsas_state, MINOR2INST(getminor(dev)));
1000 
1001 	if (instance == NULL) {
1002 		/* invalid minor number */
1003 		con_log(CL_ANN, (CE_WARN, "mr_sas: adapter not found."));
1004 		return (ENXIO);
1005 	}
1006 
1007 	ioctl = (struct mrsas_ioctl *)kmem_zalloc(sizeof (struct mrsas_ioctl),
1008 	    KM_SLEEP);
1009 	ASSERT(ioctl);
1010 
1011 	switch ((uint_t)cmd) {
1012 		case MRSAS_IOCTL_FIRMWARE:
1013 			if (ddi_copyin((void *)arg, ioctl,
1014 			    sizeof (struct mrsas_ioctl), mode)) {
1015 				con_log(CL_ANN, (CE_WARN, "mrsas_ioctl: "
1016 				    "ERROR IOCTL copyin"));
1017 				kmem_free(ioctl, sizeof (struct mrsas_ioctl));
1018 				return (EFAULT);
1019 			}
1020 
1021 			if (ioctl->control_code == MRSAS_DRIVER_IOCTL_COMMON) {
1022 				rval = handle_drv_ioctl(instance, ioctl, mode);
1023 			} else {
1024 				rval = handle_mfi_ioctl(instance, ioctl, mode);
1025 			}
1026 
1027 			if (ddi_copyout((void *)ioctl, (void *)arg,
1028 			    (sizeof (struct mrsas_ioctl) - 1), mode)) {
1029 				con_log(CL_ANN, (CE_WARN,
1030 				    "mrsas_ioctl: copy_to_user failed"));
1031 				rval = 1;
1032 			}
1033 
1034 			break;
1035 		case MRSAS_IOCTL_AEN:
1036 			if (ddi_copyin((void *) arg, &aen,
1037 			    sizeof (struct mrsas_aen), mode)) {
1038 				con_log(CL_ANN, (CE_WARN,
1039 				    "mrsas_ioctl: ERROR AEN copyin"));
1040 				kmem_free(ioctl, sizeof (struct mrsas_ioctl));
1041 				return (EFAULT);
1042 			}
1043 
1044 			rval = handle_mfi_aen(instance, &aen);
1045 
1046 			if (ddi_copyout((void *) &aen, (void *)arg,
1047 			    sizeof (struct mrsas_aen), mode)) {
1048 				con_log(CL_ANN, (CE_WARN,
1049 				    "mrsas_ioctl: copy_to_user failed"));
1050 				rval = 1;
1051 			}
1052 
1053 			break;
1054 		default:
1055 			rval = scsi_hba_ioctl(dev, cmd, arg,
1056 			    mode, credp, rvalp);
1057 
1058 			con_log(CL_DLEVEL1, (CE_NOTE, "mrsas_ioctl: "
1059 			    "scsi_hba_ioctl called, ret = %x.", rval));
1060 	}
1061 
1062 	kmem_free(ioctl, sizeof (struct mrsas_ioctl));
1063 	return (rval);
1064 }
1065 
1066 /*
1067  * ************************************************************************** *
1068  *                                                                            *
1069  *               common entry points - for block driver types                 *
1070  *                                                                            *
1071  * ************************************************************************** *
1072  */
1073 #ifdef	__sparc
1074 /*ARGSUSED*/
1075 static int
1076 mrsas_reset(dev_info_t *dip, ddi_reset_cmd_t cmd)
1077 {
1078 	int	instance_no;
1079 
1080 	struct mrsas_instance	*instance;
1081 
1082 	instance_no = ddi_get_instance(dip);
1083 	instance = (struct mrsas_instance *)ddi_get_soft_state
1084 	    (mrsas_state, instance_no);
1085 
1086 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1087 
1088 	if (!instance) {
1089 		con_log(CL_ANN, (CE_WARN, "mr_sas:%d could not get adapter "
1090 		    "in reset", instance_no));
1091 		return (DDI_FAILURE);
1092 	}
1093 
1094 	instance->func_ptr->disable_intr(instance);
1095 
1096 	con_log(CL_ANN1, (CE_NOTE, "flushing cache for instance %d",
1097 	    instance_no));
1098 
1099 	flush_cache(instance);
1100 
1101 	return (DDI_SUCCESS);
1102 }
1103 #else /* __sparc */
1104 /*ARGSUSED*/
1105 static int
1106 mrsas_quiesce(dev_info_t *dip)
1107 {
1108 	int	instance_no;
1109 
1110 	struct mrsas_instance	*instance;
1111 
1112 	instance_no = ddi_get_instance(dip);
1113 	instance = (struct mrsas_instance *)ddi_get_soft_state
1114 	    (mrsas_state, instance_no);
1115 
1116 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1117 
1118 	if (!instance) {
1119 		con_log(CL_ANN1, (CE_WARN, "mr_sas:%d could not get adapter "
1120 		    "in quiesce", instance_no));
1121 		return (DDI_FAILURE);
1122 	}
1123 	if (instance->deadadapter || instance->adapterresetinprogress) {
1124 		con_log(CL_ANN1, (CE_WARN, "mr_sas:%d adapter is not in "
1125 		    "healthy state", instance_no));
1126 		return (DDI_FAILURE);
1127 	}
1128 
1129 	if (abort_aen_cmd(instance, instance->aen_cmd)) {
1130 		con_log(CL_ANN1, (CE_WARN, "mrsas_quiesce: "
1131 		    "failed to abort prevous AEN command QUIESCE"));
1132 	}
1133 
1134 	instance->func_ptr->disable_intr(instance);
1135 
1136 	con_log(CL_ANN1, (CE_NOTE, "flushing cache for instance %d",
1137 	    instance_no));
1138 
1139 	flush_cache(instance);
1140 
1141 	if (wait_for_outstanding(instance)) {
1142 		return (DDI_FAILURE);
1143 	}
1144 	return (DDI_SUCCESS);
1145 }
1146 #endif	/* __sparc */
1147 
1148 /*
1149  * ************************************************************************** *
1150  *                                                                            *
1151  *                          entry points (SCSI HBA)                           *
1152  *                                                                            *
1153  * ************************************************************************** *
1154  */
1155 /*ARGSUSED*/
1156 static int
1157 mrsas_tran_tgt_init(dev_info_t *hba_dip, dev_info_t *tgt_dip,
1158 		scsi_hba_tran_t *tran, struct scsi_device *sd)
1159 {
1160 	struct mrsas_instance *instance;
1161 	uint16_t tgt = sd->sd_address.a_target;
1162 	uint8_t lun = sd->sd_address.a_lun;
1163 
1164 	con_log(CL_ANN1, (CE_NOTE, "mrsas_tgt_init target %d lun %d",
1165 	    tgt, lun));
1166 
1167 	instance = ADDR2MR(&sd->sd_address);
1168 
1169 	if (ndi_dev_is_persistent_node(tgt_dip) == 0) {
1170 		(void) ndi_merge_node(tgt_dip, mrsas_name_node);
1171 		ddi_set_name_addr(tgt_dip, NULL);
1172 
1173 		con_log(CL_ANN1, (CE_NOTE, "mrsas_tgt_init in "
1174 		    "ndi_dev_is_persistent_node DDI_FAILURE t = %d l = %d",
1175 		    tgt, lun));
1176 		return (DDI_FAILURE);
1177 	}
1178 
1179 	con_log(CL_ANN1, (CE_NOTE, "mrsas_tgt_init dev_dip %p tgt_dip %p",
1180 	    (void *)instance->mr_ld_list[tgt].dip, (void *)tgt_dip));
1181 
1182 	if (tgt < MRDRV_MAX_LD && lun == 0) {
1183 		if (instance->mr_ld_list[tgt].dip == NULL &&
1184 		    strcmp(ddi_driver_name(sd->sd_dev), "sd") == 0) {
1185 			instance->mr_ld_list[tgt].dip = tgt_dip;
1186 			instance->mr_ld_list[tgt].lun_type = MRSAS_LD_LUN;
1187 		}
1188 	}
1189 	return (DDI_SUCCESS);
1190 }
1191 
1192 /*ARGSUSED*/
1193 static void
1194 mrsas_tran_tgt_free(dev_info_t *hba_dip, dev_info_t *tgt_dip,
1195     scsi_hba_tran_t *hba_tran, struct scsi_device *sd)
1196 {
1197 	struct mrsas_instance *instance;
1198 	int tgt = sd->sd_address.a_target;
1199 	int lun = sd->sd_address.a_lun;
1200 
1201 	instance = ADDR2MR(&sd->sd_address);
1202 
1203 	con_log(CL_ANN1, (CE_NOTE, "tgt_free t = %d l = %d", tgt, lun));
1204 
1205 	if (tgt < MRDRV_MAX_LD && lun == 0) {
1206 		if (instance->mr_ld_list[tgt].dip == tgt_dip) {
1207 			instance->mr_ld_list[tgt].dip = NULL;
1208 		}
1209 	}
1210 }
1211 
1212 static dev_info_t *
1213 mrsas_find_child(struct mrsas_instance *instance, uint16_t tgt, uint8_t lun)
1214 {
1215 	dev_info_t *child = NULL;
1216 	char addr[SCSI_MAXNAMELEN];
1217 	char tmp[MAXNAMELEN];
1218 
1219 	(void) sprintf(addr, "%x,%x", tgt, lun);
1220 	for (child = ddi_get_child(instance->dip); child;
1221 	    child = ddi_get_next_sibling(child)) {
1222 
1223 		if (mrsas_name_node(child, tmp, MAXNAMELEN) !=
1224 		    DDI_SUCCESS) {
1225 			continue;
1226 		}
1227 
1228 		if (strcmp(addr, tmp) == 0) {
1229 			break;
1230 		}
1231 	}
1232 	con_log(CL_ANN1, (CE_NOTE, "mrsas_find_child: return child = %p",
1233 	    (void *)child));
1234 	return (child);
1235 }
1236 
1237 static int
1238 mrsas_name_node(dev_info_t *dip, char *name, int len)
1239 {
1240 	int tgt, lun;
1241 
1242 	tgt = ddi_prop_get_int(DDI_DEV_T_ANY, dip,
1243 	    DDI_PROP_DONTPASS, "target", -1);
1244 	con_log(CL_ANN1, (CE_NOTE,
1245 	    "mrsas_name_node: dip %p tgt %d", (void *)dip, tgt));
1246 	if (tgt == -1) {
1247 		return (DDI_FAILURE);
1248 	}
1249 	lun = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
1250 	    "lun", -1);
1251 	con_log(CL_ANN1,
1252 	    (CE_NOTE, "mrsas_name_node: tgt %d lun %d", tgt, lun));
1253 	if (lun == -1) {
1254 		return (DDI_FAILURE);
1255 	}
1256 	(void) snprintf(name, len, "%x,%x", tgt, lun);
1257 	return (DDI_SUCCESS);
1258 }
1259 
1260 static struct scsi_pkt *
1261 mrsas_tran_init_pkt(struct scsi_address *ap, register struct scsi_pkt *pkt,
1262 	struct buf *bp, int cmdlen, int statuslen, int tgtlen,
1263 	int flags, int (*callback)(), caddr_t arg)
1264 {
1265 	struct scsa_cmd	*acmd;
1266 	struct mrsas_instance	*instance;
1267 	struct scsi_pkt	*new_pkt;
1268 
1269 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1270 
1271 	instance = ADDR2MR(ap);
1272 
1273 	/* step #1 : pkt allocation */
1274 	if (pkt == NULL) {
1275 		pkt = scsi_hba_pkt_alloc(instance->dip, ap, cmdlen, statuslen,
1276 		    tgtlen, sizeof (struct scsa_cmd), callback, arg);
1277 		if (pkt == NULL) {
1278 			return (NULL);
1279 		}
1280 
1281 		acmd = PKT2CMD(pkt);
1282 
1283 		/*
1284 		 * Initialize the new pkt - we redundantly initialize
1285 		 * all the fields for illustrative purposes.
1286 		 */
1287 		acmd->cmd_pkt		= pkt;
1288 		acmd->cmd_flags		= 0;
1289 		acmd->cmd_scblen	= statuslen;
1290 		acmd->cmd_cdblen	= cmdlen;
1291 		acmd->cmd_dmahandle	= NULL;
1292 		acmd->cmd_ncookies	= 0;
1293 		acmd->cmd_cookie	= 0;
1294 		acmd->cmd_cookiecnt	= 0;
1295 		acmd->cmd_nwin		= 0;
1296 
1297 		pkt->pkt_address	= *ap;
1298 		pkt->pkt_comp		= (void (*)())NULL;
1299 		pkt->pkt_flags		= 0;
1300 		pkt->pkt_time		= 0;
1301 		pkt->pkt_resid		= 0;
1302 		pkt->pkt_state		= 0;
1303 		pkt->pkt_statistics	= 0;
1304 		pkt->pkt_reason		= 0;
1305 		new_pkt			= pkt;
1306 	} else {
1307 		acmd = PKT2CMD(pkt);
1308 		new_pkt = NULL;
1309 	}
1310 
1311 	/* step #2 : dma allocation/move */
1312 	if (bp && bp->b_bcount != 0) {
1313 		if (acmd->cmd_dmahandle == NULL) {
1314 			if (mrsas_dma_alloc(instance, pkt, bp, flags,
1315 			    callback) == DDI_FAILURE) {
1316 				if (new_pkt) {
1317 					scsi_hba_pkt_free(ap, new_pkt);
1318 				}
1319 				return ((struct scsi_pkt *)NULL);
1320 			}
1321 		} else {
1322 			if (mrsas_dma_move(instance, pkt, bp) == DDI_FAILURE) {
1323 				return ((struct scsi_pkt *)NULL);
1324 			}
1325 		}
1326 	}
1327 
1328 	return (pkt);
1329 }
1330 
1331 static int
1332 mrsas_tran_start(struct scsi_address *ap, register struct scsi_pkt *pkt)
1333 {
1334 	uchar_t 	cmd_done = 0;
1335 
1336 	struct mrsas_instance	*instance = ADDR2MR(ap);
1337 	struct mrsas_cmd	*cmd;
1338 
1339 	if (instance->deadadapter == 1) {
1340 		con_log(CL_ANN1, (CE_WARN,
1341 		    "mrsas_tran_start: return TRAN_FATAL_ERROR "
1342 		    "for IO, as the HBA doesnt take any more IOs"));
1343 		if (pkt) {
1344 			pkt->pkt_reason		= CMD_DEV_GONE;
1345 			pkt->pkt_statistics	= STAT_DISCON;
1346 		}
1347 		return (TRAN_FATAL_ERROR);
1348 	}
1349 
1350 	if (instance->adapterresetinprogress) {
1351 		con_log(CL_ANN1, (CE_NOTE, "Reset flag set, "
1352 		    "returning mfi_pkt and setting TRAN_BUSY\n"));
1353 		return (TRAN_BUSY);
1354 	}
1355 
1356 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d:SCSI CDB[0]=0x%x time:%x",
1357 	    __func__, __LINE__, pkt->pkt_cdbp[0], pkt->pkt_time));
1358 
1359 	pkt->pkt_reason	= CMD_CMPLT;
1360 	*pkt->pkt_scbp = STATUS_GOOD; /* clear arq scsi_status */
1361 
1362 	cmd = build_cmd(instance, ap, pkt, &cmd_done);
1363 
1364 	/*
1365 	 * Check if the command is already completed by the mrsas_build_cmd()
1366 	 * routine. In which case the busy_flag would be clear and scb will be
1367 	 * NULL and appropriate reason provided in pkt_reason field
1368 	 */
1369 	if (cmd_done) {
1370 		pkt->pkt_reason = CMD_CMPLT;
1371 		pkt->pkt_scbp[0] = STATUS_GOOD;
1372 		pkt->pkt_state |= STATE_GOT_BUS | STATE_GOT_TARGET
1373 		    | STATE_SENT_CMD;
1374 		if (((pkt->pkt_flags & FLAG_NOINTR) == 0) && pkt->pkt_comp) {
1375 			(*pkt->pkt_comp)(pkt);
1376 		}
1377 
1378 		return (TRAN_ACCEPT);
1379 	}
1380 
1381 	if (cmd == NULL) {
1382 		return (TRAN_BUSY);
1383 	}
1384 
1385 	if ((pkt->pkt_flags & FLAG_NOINTR) == 0) {
1386 		if (instance->fw_outstanding > instance->max_fw_cmds) {
1387 			con_log(CL_ANN, (CE_CONT, "mr_sas:Firmware busy"));
1388 			DTRACE_PROBE2(start_tran_err,
1389 			    uint16_t, instance->fw_outstanding,
1390 			    uint16_t, instance->max_fw_cmds);
1391 			return_mfi_pkt(instance, cmd);
1392 			return (TRAN_BUSY);
1393 		}
1394 
1395 		/* Synchronize the Cmd frame for the controller */
1396 		(void) ddi_dma_sync(cmd->frame_dma_obj.dma_handle, 0, 0,
1397 		    DDI_DMA_SYNC_FORDEV);
1398 		con_log(CL_ANN1, (CE_NOTE, "Push SCSI CDB[0]=0x%x"
1399 		    "cmd->index:%x\n", pkt->pkt_cdbp[0], cmd->index));
1400 		instance->func_ptr->issue_cmd(cmd, instance);
1401 
1402 	} else {
1403 		struct mrsas_header *hdr = &cmd->frame->hdr;
1404 
1405 		cmd->sync_cmd = MRSAS_TRUE;
1406 
1407 		instance->func_ptr-> issue_cmd_in_poll_mode(instance, cmd);
1408 
1409 		pkt->pkt_reason		= CMD_CMPLT;
1410 		pkt->pkt_statistics	= 0;
1411 		pkt->pkt_state |= STATE_XFERRED_DATA | STATE_GOT_STATUS;
1412 
1413 		switch (ddi_get8(cmd->frame_dma_obj.acc_handle,
1414 		    &hdr->cmd_status)) {
1415 		case MFI_STAT_OK:
1416 			pkt->pkt_scbp[0] = STATUS_GOOD;
1417 			break;
1418 
1419 		case MFI_STAT_SCSI_DONE_WITH_ERROR:
1420 
1421 			pkt->pkt_reason	= CMD_CMPLT;
1422 			pkt->pkt_statistics = 0;
1423 
1424 			((struct scsi_status *)pkt->pkt_scbp)->sts_chk = 1;
1425 			break;
1426 
1427 		case MFI_STAT_DEVICE_NOT_FOUND:
1428 			pkt->pkt_reason		= CMD_DEV_GONE;
1429 			pkt->pkt_statistics	= STAT_DISCON;
1430 			break;
1431 
1432 		default:
1433 			((struct scsi_status *)pkt->pkt_scbp)->sts_busy = 1;
1434 		}
1435 
1436 		(void) mrsas_common_check(instance, cmd);
1437 		DTRACE_PROBE2(start_nointr_done, uint8_t, hdr->cmd,
1438 		    uint8_t, hdr->cmd_status);
1439 		return_mfi_pkt(instance, cmd);
1440 
1441 		if (pkt->pkt_comp) {
1442 			(*pkt->pkt_comp)(pkt);
1443 		}
1444 
1445 	}
1446 
1447 	return (TRAN_ACCEPT);
1448 }
1449 
1450 /*ARGSUSED*/
1451 static int
1452 mrsas_tran_abort(struct scsi_address *ap, struct scsi_pkt *pkt)
1453 {
1454 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1455 
1456 	/* abort command not supported by H/W */
1457 
1458 	return (DDI_FAILURE);
1459 }
1460 
1461 /*ARGSUSED*/
1462 static int
1463 mrsas_tran_reset(struct scsi_address *ap, int level)
1464 {
1465 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1466 
1467 	/* reset command not supported by H/W */
1468 
1469 	return (DDI_FAILURE);
1470 
1471 }
1472 
1473 /*ARGSUSED*/
1474 static int
1475 mrsas_tran_getcap(struct scsi_address *ap, char *cap, int whom)
1476 {
1477 	int	rval = 0;
1478 
1479 	struct mrsas_instance	*instance = ADDR2MR(ap);
1480 
1481 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1482 
1483 	/* we do allow inquiring about capabilities for other targets */
1484 	if (cap == NULL) {
1485 		return (-1);
1486 	}
1487 
1488 	switch (scsi_hba_lookup_capstr(cap)) {
1489 	case SCSI_CAP_DMA_MAX:
1490 		/* Limit to 16MB max transfer */
1491 		rval = mrsas_max_cap_maxxfer;
1492 		break;
1493 	case SCSI_CAP_MSG_OUT:
1494 		rval = 1;
1495 		break;
1496 	case SCSI_CAP_DISCONNECT:
1497 		rval = 0;
1498 		break;
1499 	case SCSI_CAP_SYNCHRONOUS:
1500 		rval = 0;
1501 		break;
1502 	case SCSI_CAP_WIDE_XFER:
1503 		rval = 1;
1504 		break;
1505 	case SCSI_CAP_TAGGED_QING:
1506 		rval = 1;
1507 		break;
1508 	case SCSI_CAP_UNTAGGED_QING:
1509 		rval = 1;
1510 		break;
1511 	case SCSI_CAP_PARITY:
1512 		rval = 1;
1513 		break;
1514 	case SCSI_CAP_INITIATOR_ID:
1515 		rval = instance->init_id;
1516 		break;
1517 	case SCSI_CAP_ARQ:
1518 		rval = 1;
1519 		break;
1520 	case SCSI_CAP_LINKED_CMDS:
1521 		rval = 0;
1522 		break;
1523 	case SCSI_CAP_RESET_NOTIFICATION:
1524 		rval = 1;
1525 		break;
1526 	case SCSI_CAP_GEOMETRY:
1527 		rval = -1;
1528 
1529 		break;
1530 	default:
1531 		con_log(CL_DLEVEL2, (CE_NOTE, "Default cap coming 0x%x",
1532 		    scsi_hba_lookup_capstr(cap)));
1533 		rval = -1;
1534 		break;
1535 	}
1536 
1537 	return (rval);
1538 }
1539 
1540 /*ARGSUSED*/
1541 static int
1542 mrsas_tran_setcap(struct scsi_address *ap, char *cap, int value, int whom)
1543 {
1544 	int		rval = 1;
1545 
1546 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1547 
1548 	/* We don't allow setting capabilities for other targets */
1549 	if (cap == NULL || whom == 0) {
1550 		return (-1);
1551 	}
1552 
1553 	switch (scsi_hba_lookup_capstr(cap)) {
1554 		case SCSI_CAP_DMA_MAX:
1555 		case SCSI_CAP_MSG_OUT:
1556 		case SCSI_CAP_PARITY:
1557 		case SCSI_CAP_LINKED_CMDS:
1558 		case SCSI_CAP_RESET_NOTIFICATION:
1559 		case SCSI_CAP_DISCONNECT:
1560 		case SCSI_CAP_SYNCHRONOUS:
1561 		case SCSI_CAP_UNTAGGED_QING:
1562 		case SCSI_CAP_WIDE_XFER:
1563 		case SCSI_CAP_INITIATOR_ID:
1564 		case SCSI_CAP_ARQ:
1565 			/*
1566 			 * None of these are settable via
1567 			 * the capability interface.
1568 			 */
1569 			break;
1570 		case SCSI_CAP_TAGGED_QING:
1571 			rval = 1;
1572 			break;
1573 		case SCSI_CAP_SECTOR_SIZE:
1574 			rval = 1;
1575 			break;
1576 
1577 		case SCSI_CAP_TOTAL_SECTORS:
1578 			rval = 1;
1579 			break;
1580 		default:
1581 			rval = -1;
1582 			break;
1583 	}
1584 
1585 	return (rval);
1586 }
1587 
1588 static void
1589 mrsas_tran_destroy_pkt(struct scsi_address *ap, struct scsi_pkt *pkt)
1590 {
1591 	struct scsa_cmd *acmd = PKT2CMD(pkt);
1592 
1593 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1594 
1595 	if (acmd->cmd_flags & CFLAG_DMAVALID) {
1596 		acmd->cmd_flags &= ~CFLAG_DMAVALID;
1597 
1598 		(void) ddi_dma_unbind_handle(acmd->cmd_dmahandle);
1599 
1600 		ddi_dma_free_handle(&acmd->cmd_dmahandle);
1601 
1602 		acmd->cmd_dmahandle = NULL;
1603 	}
1604 
1605 	/* free the pkt */
1606 	scsi_hba_pkt_free(ap, pkt);
1607 }
1608 
1609 /*ARGSUSED*/
1610 static void
1611 mrsas_tran_dmafree(struct scsi_address *ap, struct scsi_pkt *pkt)
1612 {
1613 	register struct scsa_cmd *acmd = PKT2CMD(pkt);
1614 
1615 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1616 
1617 	if (acmd->cmd_flags & CFLAG_DMAVALID) {
1618 		acmd->cmd_flags &= ~CFLAG_DMAVALID;
1619 
1620 		(void) ddi_dma_unbind_handle(acmd->cmd_dmahandle);
1621 
1622 		ddi_dma_free_handle(&acmd->cmd_dmahandle);
1623 
1624 		acmd->cmd_dmahandle = NULL;
1625 	}
1626 }
1627 
1628 /*ARGSUSED*/
1629 static void
1630 mrsas_tran_sync_pkt(struct scsi_address *ap, struct scsi_pkt *pkt)
1631 {
1632 	register struct scsa_cmd	*acmd = PKT2CMD(pkt);
1633 
1634 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1635 
1636 	if (acmd->cmd_flags & CFLAG_DMAVALID) {
1637 		(void) ddi_dma_sync(acmd->cmd_dmahandle, acmd->cmd_dma_offset,
1638 		    acmd->cmd_dma_len, (acmd->cmd_flags & CFLAG_DMASEND) ?
1639 		    DDI_DMA_SYNC_FORDEV : DDI_DMA_SYNC_FORCPU);
1640 	}
1641 }
1642 
1643 /*
1644  * mrsas_isr(caddr_t)
1645  *
1646  * The Interrupt Service Routine
1647  *
1648  * Collect status for all completed commands and do callback
1649  *
1650  */
1651 static uint_t
1652 mrsas_isr(struct mrsas_instance *instance)
1653 {
1654 	int		need_softintr;
1655 	uint32_t	producer;
1656 	uint32_t	consumer;
1657 	uint32_t	context;
1658 
1659 	struct mrsas_cmd	*cmd;
1660 	struct mrsas_header	*hdr;
1661 	struct scsi_pkt		*pkt;
1662 
1663 	ASSERT(instance);
1664 	if ((instance->intr_type == DDI_INTR_TYPE_FIXED) &&
1665 	    !instance->func_ptr->intr_ack(instance)) {
1666 		return (DDI_INTR_UNCLAIMED);
1667 	}
1668 
1669 	(void) ddi_dma_sync(instance->mfi_internal_dma_obj.dma_handle,
1670 	    0, 0, DDI_DMA_SYNC_FORCPU);
1671 
1672 	if (mrsas_check_dma_handle(instance->mfi_internal_dma_obj.dma_handle)
1673 	    != DDI_SUCCESS) {
1674 		mrsas_fm_ereport(instance, DDI_FM_DEVICE_NO_RESPONSE);
1675 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
1676 		con_log(CL_ANN1, (CE_WARN,
1677 		    "mr_sas_isr(): FMA check, returning DDI_INTR_UNCLAIMED"));
1678 		return (DDI_INTR_CLAIMED);
1679 	}
1680 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1681 
1682 #ifdef OCRDEBUG
1683 	if (debug_consecutive_timeout_after_ocr_g == 1) {
1684 		con_log(CL_ANN1, (CE_NOTE,
1685 		"simulating consecutive timeout after ocr"));
1686 		return (DDI_INTR_CLAIMED);
1687 	}
1688 #endif
1689 
1690 	mutex_enter(&instance->completed_pool_mtx);
1691 	mutex_enter(&instance->cmd_pend_mtx);
1692 
1693 	producer = ddi_get32(instance->mfi_internal_dma_obj.acc_handle,
1694 	    instance->producer);
1695 	consumer = ddi_get32(instance->mfi_internal_dma_obj.acc_handle,
1696 	    instance->consumer);
1697 
1698 	con_log(CL_ANN1, (CE_NOTE, " producer %x consumer %x ",
1699 	    producer, consumer));
1700 	if (producer == consumer) {
1701 		con_log(CL_ANN1, (CE_WARN, "producer =  consumer case"));
1702 		DTRACE_PROBE2(isr_pc_err, uint32_t, producer,
1703 		    uint32_t, consumer);
1704 		mutex_exit(&instance->cmd_pend_mtx);
1705 		mutex_exit(&instance->completed_pool_mtx);
1706 		return (DDI_INTR_CLAIMED);
1707 	}
1708 
1709 	while (consumer != producer) {
1710 		context = ddi_get32(instance->mfi_internal_dma_obj.acc_handle,
1711 		    &instance->reply_queue[consumer]);
1712 		cmd = instance->cmd_list[context];
1713 
1714 		if (cmd->sync_cmd == MRSAS_TRUE) {
1715 		hdr = (struct mrsas_header *)&cmd->frame->hdr;
1716 		if (hdr) {
1717 			mlist_del_init(&cmd->list);
1718 		}
1719 		} else {
1720 			pkt = cmd->pkt;
1721 			if (pkt) {
1722 				mlist_del_init(&cmd->list);
1723 			}
1724 		}
1725 
1726 		mlist_add_tail(&cmd->list, &instance->completed_pool_list);
1727 
1728 		consumer++;
1729 		if (consumer == (instance->max_fw_cmds + 1)) {
1730 			consumer = 0;
1731 		}
1732 	}
1733 	ddi_put32(instance->mfi_internal_dma_obj.acc_handle,
1734 	    instance->consumer, consumer);
1735 	mutex_exit(&instance->cmd_pend_mtx);
1736 	mutex_exit(&instance->completed_pool_mtx);
1737 
1738 	(void) ddi_dma_sync(instance->mfi_internal_dma_obj.dma_handle,
1739 	    0, 0, DDI_DMA_SYNC_FORDEV);
1740 
1741 	if (instance->softint_running) {
1742 		need_softintr = 0;
1743 	} else {
1744 		need_softintr = 1;
1745 	}
1746 
1747 	if (instance->isr_level == HIGH_LEVEL_INTR) {
1748 		if (need_softintr) {
1749 			ddi_trigger_softintr(instance->soft_intr_id);
1750 		}
1751 	} else {
1752 		/*
1753 		 * Not a high-level interrupt, therefore call the soft level
1754 		 * interrupt explicitly
1755 		 */
1756 		(void) mrsas_softintr(instance);
1757 	}
1758 
1759 	return (DDI_INTR_CLAIMED);
1760 }
1761 
1762 
1763 /*
1764  * ************************************************************************** *
1765  *                                                                            *
1766  *                                  libraries                                 *
1767  *                                                                            *
1768  * ************************************************************************** *
1769  */
1770 /*
1771  * get_mfi_pkt : Get a command from the free pool
1772  * After successful allocation, the caller of this routine
1773  * must clear the frame buffer (memset to zero) before
1774  * using the packet further.
1775  *
1776  * ***** Note *****
1777  * After clearing the frame buffer the context id of the
1778  * frame buffer SHOULD be restored back.
1779  */
1780 static struct mrsas_cmd *
1781 get_mfi_pkt(struct mrsas_instance *instance)
1782 {
1783 	mlist_t 		*head = &instance->cmd_pool_list;
1784 	struct mrsas_cmd	*cmd = NULL;
1785 
1786 	mutex_enter(&instance->cmd_pool_mtx);
1787 	ASSERT(mutex_owned(&instance->cmd_pool_mtx));
1788 
1789 	if (!mlist_empty(head)) {
1790 		cmd = mlist_entry(head->next, struct mrsas_cmd, list);
1791 		mlist_del_init(head->next);
1792 	}
1793 	if (cmd != NULL) {
1794 		cmd->pkt = NULL;
1795 		cmd->retry_count_for_ocr = 0;
1796 		cmd->drv_pkt_time = 0;
1797 	}
1798 	mutex_exit(&instance->cmd_pool_mtx);
1799 
1800 	return (cmd);
1801 }
1802 
1803 static struct mrsas_cmd *
1804 get_mfi_app_pkt(struct mrsas_instance *instance)
1805 {
1806 	mlist_t				*head = &instance->app_cmd_pool_list;
1807 	struct mrsas_cmd	*cmd = NULL;
1808 
1809 	mutex_enter(&instance->app_cmd_pool_mtx);
1810 	ASSERT(mutex_owned(&instance->app_cmd_pool_mtx));
1811 
1812 	if (!mlist_empty(head)) {
1813 		cmd = mlist_entry(head->next, struct mrsas_cmd, list);
1814 		mlist_del_init(head->next);
1815 	}
1816 	if (cmd != NULL)
1817 		cmd->pkt = NULL;
1818 	mutex_exit(&instance->app_cmd_pool_mtx);
1819 
1820 	return (cmd);
1821 }
1822 /*
1823  * return_mfi_pkt : Return a cmd to free command pool
1824  */
1825 static void
1826 return_mfi_pkt(struct mrsas_instance *instance, struct mrsas_cmd *cmd)
1827 {
1828 	mutex_enter(&instance->cmd_pool_mtx);
1829 	ASSERT(mutex_owned(&instance->cmd_pool_mtx));
1830 	/* use mlist_add_tail for debug assistance */
1831 	mlist_add_tail(&cmd->list, &instance->cmd_pool_list);
1832 
1833 	mutex_exit(&instance->cmd_pool_mtx);
1834 }
1835 
1836 static void
1837 return_mfi_app_pkt(struct mrsas_instance *instance, struct mrsas_cmd *cmd)
1838 {
1839 	mutex_enter(&instance->app_cmd_pool_mtx);
1840 	ASSERT(mutex_owned(&instance->app_cmd_pool_mtx));
1841 
1842 	mlist_add(&cmd->list, &instance->app_cmd_pool_list);
1843 
1844 	mutex_exit(&instance->app_cmd_pool_mtx);
1845 }
1846 static void
1847 push_pending_mfi_pkt(struct mrsas_instance *instance, struct mrsas_cmd *cmd)
1848 {
1849 	struct scsi_pkt *pkt;
1850 	struct mrsas_header	*hdr;
1851 	con_log(CL_ANN1, (CE_NOTE, "push_pending_pkt(): Called\n"));
1852 	mutex_enter(&instance->cmd_pend_mtx);
1853 	ASSERT(mutex_owned(&instance->cmd_pend_mtx));
1854 	mlist_del_init(&cmd->list);
1855 	mlist_add_tail(&cmd->list, &instance->cmd_pend_list);
1856 	if (cmd->sync_cmd == MRSAS_TRUE) {
1857 		hdr = (struct mrsas_header *)&cmd->frame->hdr;
1858 		if (hdr) {
1859 			con_log(CL_ANN1, (CE_CONT,
1860 			    "push_pending_mfi_pkt: "
1861 			    "cmd %p index %x "
1862 			    "time %llx",
1863 			    (void *)cmd, cmd->index,
1864 			    gethrtime()));
1865 			/* Wait for specified interval  */
1866 			cmd->drv_pkt_time = ddi_get16(
1867 			    cmd->frame_dma_obj.acc_handle, &hdr->timeout);
1868 			if (cmd->drv_pkt_time < debug_timeout_g)
1869 				cmd->drv_pkt_time = (uint16_t)debug_timeout_g;
1870 			con_log(CL_ANN1, (CE_CONT,
1871 			    "push_pending_pkt(): "
1872 			    "Called IO Timeout Value %x\n",
1873 			    cmd->drv_pkt_time));
1874 		}
1875 		if (hdr && instance->timeout_id == (timeout_id_t)-1) {
1876 			instance->timeout_id = timeout(io_timeout_checker,
1877 			    (void *) instance, drv_usectohz(MRSAS_1_SECOND));
1878 		}
1879 	} else {
1880 		pkt = cmd->pkt;
1881 		if (pkt) {
1882 			con_log(CL_ANN1, (CE_CONT,
1883 			    "push_pending_mfi_pkt: "
1884 			    "cmd %p index %x pkt %p, "
1885 			    "time %llx",
1886 			    (void *)cmd, cmd->index, (void *)pkt,
1887 			    gethrtime()));
1888 			cmd->drv_pkt_time = (uint16_t)debug_timeout_g;
1889 		}
1890 		if (pkt && instance->timeout_id == (timeout_id_t)-1) {
1891 			instance->timeout_id = timeout(io_timeout_checker,
1892 			    (void *) instance, drv_usectohz(MRSAS_1_SECOND));
1893 		}
1894 	}
1895 
1896 	mutex_exit(&instance->cmd_pend_mtx);
1897 }
1898 
1899 static int
1900 mrsas_print_pending_cmds(struct mrsas_instance *instance)
1901 {
1902 	mlist_t *head = &instance->cmd_pend_list;
1903 	mlist_t *tmp = head;
1904 	struct mrsas_cmd *cmd = NULL;
1905 	struct mrsas_header	*hdr;
1906 	unsigned int		flag = 1;
1907 
1908 	struct scsi_pkt *pkt;
1909 	con_log(CL_ANN1, (CE_NOTE,
1910 	    "mrsas_print_pending_cmds(): Called"));
1911 	while (flag) {
1912 		mutex_enter(&instance->cmd_pend_mtx);
1913 		tmp	=	tmp->next;
1914 		if (tmp == head) {
1915 			mutex_exit(&instance->cmd_pend_mtx);
1916 			flag = 0;
1917 			break;
1918 		} else {
1919 			cmd = mlist_entry(tmp, struct mrsas_cmd, list);
1920 			mutex_exit(&instance->cmd_pend_mtx);
1921 			if (cmd) {
1922 				if (cmd->sync_cmd == MRSAS_TRUE) {
1923 				hdr = (struct mrsas_header *)&cmd->frame->hdr;
1924 					if (hdr) {
1925 					con_log(CL_ANN1, (CE_CONT,
1926 					    "print: cmd %p index %x hdr %p",
1927 					    (void *)cmd, cmd->index,
1928 					    (void *)hdr));
1929 					}
1930 				} else {
1931 					pkt = cmd->pkt;
1932 					if (pkt) {
1933 					con_log(CL_ANN1, (CE_CONT,
1934 					    "print: cmd %p index %x "
1935 					    "pkt %p", (void *)cmd, cmd->index,
1936 					    (void *)pkt));
1937 					}
1938 				}
1939 			}
1940 		}
1941 	}
1942 	con_log(CL_ANN1, (CE_NOTE, "mrsas_print_pending_cmds(): Done\n"));
1943 	return (DDI_SUCCESS);
1944 }
1945 
1946 
1947 static int
1948 mrsas_complete_pending_cmds(struct mrsas_instance *instance)
1949 {
1950 
1951 	struct mrsas_cmd *cmd = NULL;
1952 	struct scsi_pkt *pkt;
1953 	struct mrsas_header *hdr;
1954 
1955 	struct mlist_head		*pos, *next;
1956 
1957 	con_log(CL_ANN1, (CE_NOTE,
1958 	    "mrsas_complete_pending_cmds(): Called"));
1959 
1960 	mutex_enter(&instance->cmd_pend_mtx);
1961 	mlist_for_each_safe(pos, next, &instance->cmd_pend_list) {
1962 		cmd = mlist_entry(pos, struct mrsas_cmd, list);
1963 		if (cmd) {
1964 			pkt = cmd->pkt;
1965 			if (pkt) { /* for IO */
1966 				if (((pkt->pkt_flags & FLAG_NOINTR)
1967 				    == 0) && pkt->pkt_comp) {
1968 					pkt->pkt_reason
1969 					    = CMD_DEV_GONE;
1970 					pkt->pkt_statistics
1971 					    = STAT_DISCON;
1972 					con_log(CL_ANN1, (CE_NOTE,
1973 					    "fail and posting to scsa "
1974 					    "cmd %p index %x"
1975 					    " pkt %p "
1976 					    "time : %llx",
1977 					    (void *)cmd, cmd->index,
1978 					    (void *)pkt, gethrtime()));
1979 					(*pkt->pkt_comp)(pkt);
1980 				}
1981 			} else { /* for DCMDS */
1982 				if (cmd->sync_cmd == MRSAS_TRUE) {
1983 				hdr = (struct mrsas_header *)&cmd->frame->hdr;
1984 				con_log(CL_ANN1, (CE_NOTE,
1985 				    "posting invalid status to application "
1986 				    "cmd %p index %x"
1987 				    " hdr %p "
1988 				    "time : %llx",
1989 				    (void *)cmd, cmd->index,
1990 				    (void *)hdr, gethrtime()));
1991 				hdr->cmd_status = MFI_STAT_INVALID_STATUS;
1992 				complete_cmd_in_sync_mode(instance, cmd);
1993 				}
1994 			}
1995 			mlist_del_init(&cmd->list);
1996 		} else {
1997 			con_log(CL_ANN1, (CE_NOTE,
1998 			    "mrsas_complete_pending_cmds:"
1999 			    "NULL command\n"));
2000 		}
2001 		con_log(CL_ANN1, (CE_NOTE,
2002 		    "mrsas_complete_pending_cmds:"
2003 		    "looping for more commands\n"));
2004 	}
2005 	mutex_exit(&instance->cmd_pend_mtx);
2006 
2007 	con_log(CL_ANN1, (CE_NOTE, "mrsas_complete_pending_cmds(): DONE\n"));
2008 	return (DDI_SUCCESS);
2009 }
2010 
2011 
2012 static int
2013 mrsas_issue_pending_cmds(struct mrsas_instance *instance)
2014 {
2015 	mlist_t *head	=	&instance->cmd_pend_list;
2016 	mlist_t *tmp	=	head->next;
2017 	struct mrsas_cmd *cmd = NULL;
2018 	struct scsi_pkt *pkt;
2019 
2020 	con_log(CL_ANN1, (CE_NOTE, "mrsas_issue_pending_cmds(): Called"));
2021 	while (tmp != head) {
2022 		mutex_enter(&instance->cmd_pend_mtx);
2023 		cmd = mlist_entry(tmp, struct mrsas_cmd, list);
2024 		tmp = tmp->next;
2025 		mutex_exit(&instance->cmd_pend_mtx);
2026 		if (cmd) {
2027 			con_log(CL_ANN1, (CE_NOTE,
2028 			    "mrsas_issue_pending_cmds(): "
2029 			    "Got a cmd: cmd:%p\n", (void *)cmd));
2030 			cmd->retry_count_for_ocr++;
2031 			con_log(CL_ANN1, (CE_NOTE,
2032 			    "mrsas_issue_pending_cmds(): "
2033 			    "cmd retry count = %d\n",
2034 			    cmd->retry_count_for_ocr));
2035 			if (cmd->retry_count_for_ocr > IO_RETRY_COUNT) {
2036 				con_log(CL_ANN1, (CE_NOTE,
2037 				    "mrsas_issue_pending_cmds():"
2038 				    "Calling Kill Adapter\n"));
2039 				(void) mrsas_kill_adapter(instance);
2040 				return (DDI_FAILURE);
2041 			}
2042 			pkt = cmd->pkt;
2043 			if (pkt) {
2044 				con_log(CL_ANN1, (CE_NOTE,
2045 				    "PENDING ISSUE: cmd %p index %x "
2046 				    "pkt %p time %llx",
2047 				    (void *)cmd, cmd->index,
2048 				    (void *)pkt,
2049 				    gethrtime()));
2050 
2051 			}
2052 			if (cmd->sync_cmd == MRSAS_TRUE) {
2053 				instance->func_ptr->issue_cmd_in_sync_mode(
2054 				    instance, cmd);
2055 			} else {
2056 				instance->func_ptr->issue_cmd(cmd, instance);
2057 			}
2058 		} else {
2059 			con_log(CL_ANN1, (CE_NOTE,
2060 			    "mrsas_issue_pending_cmds: NULL command\n"));
2061 		}
2062 		con_log(CL_ANN1, (CE_NOTE,
2063 		    "mrsas_issue_pending_cmds:"
2064 		    "looping for more commands"));
2065 	}
2066 	con_log(CL_ANN1, (CE_NOTE, "mrsas_issue_pending_cmds(): DONE\n"));
2067 	return (DDI_SUCCESS);
2068 }
2069 
2070 /*
2071  * destroy_mfi_frame_pool
2072  */
2073 static void
2074 destroy_mfi_frame_pool(struct mrsas_instance *instance)
2075 {
2076 	int		i;
2077 	uint32_t	max_cmd = instance->max_fw_cmds;
2078 
2079 	struct mrsas_cmd	*cmd;
2080 
2081 	/* return all frames to pool */
2082 	for (i = 0; i < max_cmd+1; i++) {
2083 
2084 		cmd = instance->cmd_list[i];
2085 
2086 		if (cmd->frame_dma_obj_status == DMA_OBJ_ALLOCATED)
2087 			(void) mrsas_free_dma_obj(instance, cmd->frame_dma_obj);
2088 
2089 		cmd->frame_dma_obj_status  = DMA_OBJ_FREED;
2090 	}
2091 
2092 }
2093 
2094 /*
2095  * create_mfi_frame_pool
2096  */
2097 static int
2098 create_mfi_frame_pool(struct mrsas_instance *instance)
2099 {
2100 	int		i = 0;
2101 	int		cookie_cnt;
2102 	uint16_t	max_cmd;
2103 	uint16_t	sge_sz;
2104 	uint32_t	sgl_sz;
2105 	uint32_t	tot_frame_size;
2106 	struct mrsas_cmd	*cmd;
2107 
2108 	max_cmd = instance->max_fw_cmds;
2109 
2110 	sge_sz	= sizeof (struct mrsas_sge_ieee);
2111 
2112 	/* calculated the number of 64byte frames required for SGL */
2113 	sgl_sz		= sge_sz * instance->max_num_sge;
2114 	tot_frame_size	= sgl_sz + MRMFI_FRAME_SIZE + SENSE_LENGTH;
2115 
2116 	con_log(CL_DLEVEL3, (CE_NOTE, "create_mfi_frame_pool: "
2117 	    "sgl_sz %x tot_frame_size %x", sgl_sz, tot_frame_size));
2118 
2119 	while (i < max_cmd+1) {
2120 		cmd = instance->cmd_list[i];
2121 
2122 		cmd->frame_dma_obj.size	= tot_frame_size;
2123 		cmd->frame_dma_obj.dma_attr = mrsas_generic_dma_attr;
2124 		cmd->frame_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
2125 		cmd->frame_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
2126 		cmd->frame_dma_obj.dma_attr.dma_attr_sgllen = 1;
2127 		cmd->frame_dma_obj.dma_attr.dma_attr_align = 64;
2128 
2129 
2130 		cookie_cnt = mrsas_alloc_dma_obj(instance, &cmd->frame_dma_obj,
2131 		    (uchar_t)DDI_STRUCTURE_LE_ACC);
2132 
2133 		if (cookie_cnt == -1 || cookie_cnt > 1) {
2134 			con_log(CL_ANN, (CE_WARN,
2135 			    "create_mfi_frame_pool: could not alloc."));
2136 			return (DDI_FAILURE);
2137 		}
2138 
2139 		bzero(cmd->frame_dma_obj.buffer, tot_frame_size);
2140 
2141 		cmd->frame_dma_obj_status = DMA_OBJ_ALLOCATED;
2142 		cmd->frame = (union mrsas_frame *)cmd->frame_dma_obj.buffer;
2143 		cmd->frame_phys_addr =
2144 		    cmd->frame_dma_obj.dma_cookie[0].dmac_address;
2145 
2146 		cmd->sense = (uint8_t *)(((unsigned long)
2147 		    cmd->frame_dma_obj.buffer) +
2148 		    tot_frame_size - SENSE_LENGTH);
2149 		cmd->sense_phys_addr =
2150 		    cmd->frame_dma_obj.dma_cookie[0].dmac_address +
2151 		    tot_frame_size - SENSE_LENGTH;
2152 
2153 		if (!cmd->frame || !cmd->sense) {
2154 			con_log(CL_ANN, (CE_NOTE,
2155 			    "mr_sas: pci_pool_alloc failed"));
2156 
2157 			return (ENOMEM);
2158 		}
2159 
2160 		ddi_put32(cmd->frame_dma_obj.acc_handle,
2161 		    &cmd->frame->io.context, cmd->index);
2162 		i++;
2163 
2164 		con_log(CL_DLEVEL3, (CE_NOTE, "[%x]-%x",
2165 		    cmd->index, cmd->frame_phys_addr));
2166 	}
2167 
2168 	return (DDI_SUCCESS);
2169 }
2170 
2171 /*
2172  * free_additional_dma_buffer
2173  */
2174 static void
2175 free_additional_dma_buffer(struct mrsas_instance *instance)
2176 {
2177 	if (instance->mfi_internal_dma_obj.status == DMA_OBJ_ALLOCATED) {
2178 		(void) mrsas_free_dma_obj(instance,
2179 		    instance->mfi_internal_dma_obj);
2180 		instance->mfi_internal_dma_obj.status = DMA_OBJ_FREED;
2181 	}
2182 
2183 	if (instance->mfi_evt_detail_obj.status == DMA_OBJ_ALLOCATED) {
2184 		(void) mrsas_free_dma_obj(instance,
2185 		    instance->mfi_evt_detail_obj);
2186 		instance->mfi_evt_detail_obj.status = DMA_OBJ_FREED;
2187 	}
2188 }
2189 
2190 /*
2191  * alloc_additional_dma_buffer
2192  */
2193 static int
2194 alloc_additional_dma_buffer(struct mrsas_instance *instance)
2195 {
2196 	uint32_t	reply_q_sz;
2197 	uint32_t	internal_buf_size = PAGESIZE*2;
2198 
2199 	/* max cmds plus 1 + producer & consumer */
2200 	reply_q_sz = sizeof (uint32_t) * (instance->max_fw_cmds + 1 + 2);
2201 
2202 	instance->mfi_internal_dma_obj.size = internal_buf_size;
2203 	instance->mfi_internal_dma_obj.dma_attr	= mrsas_generic_dma_attr;
2204 	instance->mfi_internal_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
2205 	instance->mfi_internal_dma_obj.dma_attr.dma_attr_count_max =
2206 	    0xFFFFFFFFU;
2207 	instance->mfi_internal_dma_obj.dma_attr.dma_attr_sgllen	= 1;
2208 
2209 	if (mrsas_alloc_dma_obj(instance, &instance->mfi_internal_dma_obj,
2210 	    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
2211 		con_log(CL_ANN, (CE_WARN,
2212 		    "mr_sas: could not alloc reply queue"));
2213 		return (DDI_FAILURE);
2214 	}
2215 
2216 	bzero(instance->mfi_internal_dma_obj.buffer, internal_buf_size);
2217 
2218 	instance->mfi_internal_dma_obj.status |= DMA_OBJ_ALLOCATED;
2219 
2220 	instance->producer = (uint32_t *)((unsigned long)
2221 	    instance->mfi_internal_dma_obj.buffer);
2222 	instance->consumer = (uint32_t *)((unsigned long)
2223 	    instance->mfi_internal_dma_obj.buffer + 4);
2224 	instance->reply_queue = (uint32_t *)((unsigned long)
2225 	    instance->mfi_internal_dma_obj.buffer + 8);
2226 	instance->internal_buf = (caddr_t)(((unsigned long)
2227 	    instance->mfi_internal_dma_obj.buffer) + reply_q_sz + 8);
2228 	instance->internal_buf_dmac_add =
2229 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address +
2230 	    (reply_q_sz + 8);
2231 	instance->internal_buf_size = internal_buf_size -
2232 	    (reply_q_sz + 8);
2233 
2234 	/* allocate evt_detail */
2235 	instance->mfi_evt_detail_obj.size = sizeof (struct mrsas_evt_detail);
2236 	instance->mfi_evt_detail_obj.dma_attr = mrsas_generic_dma_attr;
2237 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
2238 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
2239 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_sgllen = 1;
2240 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_align = 1;
2241 
2242 	if (mrsas_alloc_dma_obj(instance, &instance->mfi_evt_detail_obj,
2243 	    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
2244 		con_log(CL_ANN, (CE_WARN, "alloc_additional_dma_buffer: "
2245 		    "could not allocate data transfer buffer."));
2246 		return (DDI_FAILURE);
2247 	}
2248 
2249 	bzero(instance->mfi_evt_detail_obj.buffer,
2250 	    sizeof (struct mrsas_evt_detail));
2251 
2252 	instance->mfi_evt_detail_obj.status |= DMA_OBJ_ALLOCATED;
2253 
2254 	return (DDI_SUCCESS);
2255 }
2256 
2257 /*
2258  * free_space_for_mfi
2259  */
2260 static void
2261 free_space_for_mfi(struct mrsas_instance *instance)
2262 {
2263 	int		i;
2264 	uint32_t	max_cmd = instance->max_fw_cmds;
2265 
2266 	/* already freed */
2267 	if (instance->cmd_list == NULL) {
2268 		return;
2269 	}
2270 
2271 	free_additional_dma_buffer(instance);
2272 
2273 	/* first free the MFI frame pool */
2274 	destroy_mfi_frame_pool(instance);
2275 
2276 	/* free all the commands in the cmd_list */
2277 	for (i = 0; i < instance->max_fw_cmds+1; i++) {
2278 		kmem_free(instance->cmd_list[i],
2279 		    sizeof (struct mrsas_cmd));
2280 
2281 		instance->cmd_list[i] = NULL;
2282 	}
2283 
2284 	/* free the cmd_list buffer itself */
2285 	kmem_free(instance->cmd_list,
2286 	    sizeof (struct mrsas_cmd *) * (max_cmd+1));
2287 
2288 	instance->cmd_list = NULL;
2289 
2290 	INIT_LIST_HEAD(&instance->cmd_pool_list);
2291 	INIT_LIST_HEAD(&instance->app_cmd_pool_list);
2292 	INIT_LIST_HEAD(&instance->cmd_pend_list);
2293 }
2294 
2295 /*
2296  * alloc_space_for_mfi
2297  */
2298 static int
2299 alloc_space_for_mfi(struct mrsas_instance *instance)
2300 {
2301 	int		i;
2302 	uint32_t	max_cmd;
2303 	uint32_t	reserve_cmd;
2304 	size_t		sz;
2305 
2306 	struct mrsas_cmd	*cmd;
2307 
2308 	max_cmd = instance->max_fw_cmds;
2309 
2310 	/* reserve 1 more slot for flush_cache */
2311 	sz = sizeof (struct mrsas_cmd *) * (max_cmd+1);
2312 
2313 	/*
2314 	 * instance->cmd_list is an array of struct mrsas_cmd pointers.
2315 	 * Allocate the dynamic array first and then allocate individual
2316 	 * commands.
2317 	 */
2318 	instance->cmd_list = kmem_zalloc(sz, KM_SLEEP);
2319 	ASSERT(instance->cmd_list);
2320 
2321 	for (i = 0; i < max_cmd+1; i++) {
2322 		instance->cmd_list[i] = kmem_zalloc(sizeof (struct mrsas_cmd),
2323 		    KM_SLEEP);
2324 		ASSERT(instance->cmd_list[i]);
2325 	}
2326 
2327 	INIT_LIST_HEAD(&instance->cmd_pool_list);
2328 	INIT_LIST_HEAD(&instance->cmd_pend_list);
2329 	/* add all the commands to command pool (instance->cmd_pool) */
2330 	reserve_cmd	=	APP_RESERVE_CMDS;
2331 	INIT_LIST_HEAD(&instance->app_cmd_pool_list);
2332 	for (i = 0; i < reserve_cmd-1; i++) {
2333 		cmd	= instance->cmd_list[i];
2334 		cmd->index	= i;
2335 		mlist_add_tail(&cmd->list, &instance->app_cmd_pool_list);
2336 	}
2337 	/*
2338 	 * reserve slot instance->cmd_list[APP_RESERVE_CMDS-1]
2339 	 * for abort_aen_cmd
2340 	 */
2341 	for (i = reserve_cmd; i < max_cmd; i++) {
2342 		cmd			= instance->cmd_list[i];
2343 		cmd->index	= i;
2344 		mlist_add_tail(&cmd->list, &instance->cmd_pool_list);
2345 	}
2346 
2347 	/* single slot for flush_cache won't be added in command pool */
2348 	cmd		= instance->cmd_list[max_cmd];
2349 	cmd->index	= i;
2350 
2351 	/* create a frame pool and assign one frame to each cmd */
2352 	if (create_mfi_frame_pool(instance)) {
2353 		con_log(CL_ANN, (CE_NOTE, "error creating frame DMA pool"));
2354 		return (DDI_FAILURE);
2355 	}
2356 
2357 	/* create a frame pool and assign one frame to each cmd */
2358 	if (alloc_additional_dma_buffer(instance)) {
2359 		con_log(CL_ANN, (CE_NOTE, "error creating frame DMA pool"));
2360 		return (DDI_FAILURE);
2361 	}
2362 
2363 	return (DDI_SUCCESS);
2364 }
2365 
2366 
2367 /*
2368  * get_ctrl_info
2369  */
2370 static int
2371 get_ctrl_info(struct mrsas_instance *instance,
2372     struct mrsas_ctrl_info *ctrl_info)
2373 {
2374 	int	ret = 0;
2375 
2376 	struct mrsas_cmd		*cmd;
2377 	struct mrsas_dcmd_frame	*dcmd;
2378 	struct mrsas_ctrl_info	*ci;
2379 
2380 	cmd = get_mfi_pkt(instance);
2381 
2382 	if (!cmd) {
2383 		con_log(CL_ANN, (CE_WARN,
2384 		    "Failed to get a cmd for ctrl info"));
2385 		DTRACE_PROBE2(info_mfi_err, uint16_t, instance->fw_outstanding,
2386 		    uint16_t, instance->max_fw_cmds);
2387 		return (DDI_FAILURE);
2388 	}
2389 	cmd->retry_count_for_ocr = 0;
2390 	/* Clear the frame buffer and assign back the context id */
2391 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
2392 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
2393 	    cmd->index);
2394 
2395 	dcmd = &cmd->frame->dcmd;
2396 
2397 	ci = (struct mrsas_ctrl_info *)instance->internal_buf;
2398 
2399 	if (!ci) {
2400 		con_log(CL_ANN, (CE_WARN,
2401 		    "Failed to alloc mem for ctrl info"));
2402 		return_mfi_pkt(instance, cmd);
2403 		return (DDI_FAILURE);
2404 	}
2405 
2406 	(void) memset(ci, 0, sizeof (struct mrsas_ctrl_info));
2407 
2408 	/* for( i = 0; i < DCMD_MBOX_SZ; i++ ) dcmd->mbox.b[i] = 0; */
2409 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
2410 
2411 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
2412 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status,
2413 	    MFI_CMD_STATUS_POLL_MODE);
2414 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 1);
2415 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
2416 	    MFI_FRAME_DIR_READ);
2417 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
2418 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len,
2419 	    sizeof (struct mrsas_ctrl_info));
2420 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
2421 	    MR_DCMD_CTRL_GET_INFO);
2422 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].phys_addr,
2423 	    instance->internal_buf_dmac_add);
2424 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].length,
2425 	    sizeof (struct mrsas_ctrl_info));
2426 
2427 	cmd->frame_count = 1;
2428 
2429 	if (!instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
2430 	ret = 0;
2431 
2432 	ctrl_info->max_request_size = ddi_get32(
2433 	    cmd->frame_dma_obj.acc_handle, &ci->max_request_size);
2434 
2435 	ctrl_info->ld_present_count = ddi_get16(
2436 	    cmd->frame_dma_obj.acc_handle, &ci->ld_present_count);
2437 
2438 	ctrl_info->properties.on_off_properties =
2439 	    ddi_get32(cmd->frame_dma_obj.acc_handle,
2440 	    &ci->properties.on_off_properties);
2441 
2442 	ddi_rep_get8(cmd->frame_dma_obj.acc_handle,
2443 	    (uint8_t *)(ctrl_info->product_name),
2444 	    (uint8_t *)(ci->product_name), 80 * sizeof (char),
2445 	    DDI_DEV_AUTOINCR);
2446 	/* should get more members of ci with ddi_get when needed */
2447 	} else {
2448 		con_log(CL_ANN, (CE_WARN, "get_ctrl_info: Ctrl info failed"));
2449 		ret = -1;
2450 	}
2451 
2452 	if (mrsas_common_check(instance, cmd) != DDI_SUCCESS) {
2453 		ret = -1;
2454 	}
2455 	return_mfi_pkt(instance, cmd);
2456 
2457 	return (ret);
2458 }
2459 
2460 /*
2461  * abort_aen_cmd
2462  */
2463 static int
2464 abort_aen_cmd(struct mrsas_instance *instance,
2465     struct mrsas_cmd *cmd_to_abort)
2466 {
2467 	int	ret = 0;
2468 
2469 	struct mrsas_cmd		*cmd;
2470 	struct mrsas_abort_frame	*abort_fr;
2471 
2472 	cmd = instance->cmd_list[APP_RESERVE_CMDS-1];
2473 
2474 	if (!cmd) {
2475 		con_log(CL_ANN1, (CE_WARN,
2476 		    "abort_aen_cmd():Failed to get a cmd for abort_aen_cmd"));
2477 		DTRACE_PROBE2(abort_mfi_err, uint16_t, instance->fw_outstanding,
2478 		    uint16_t, instance->max_fw_cmds);
2479 		return (DDI_FAILURE);
2480 	}
2481 	cmd->retry_count_for_ocr = 0;
2482 	/* Clear the frame buffer and assign back the context id */
2483 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
2484 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
2485 	    cmd->index);
2486 
2487 	abort_fr = &cmd->frame->abort;
2488 
2489 	/* prepare and issue the abort frame */
2490 	ddi_put8(cmd->frame_dma_obj.acc_handle,
2491 	    &abort_fr->cmd, MFI_CMD_OP_ABORT);
2492 	ddi_put8(cmd->frame_dma_obj.acc_handle, &abort_fr->cmd_status,
2493 	    MFI_CMD_STATUS_SYNC_MODE);
2494 	ddi_put16(cmd->frame_dma_obj.acc_handle, &abort_fr->flags, 0);
2495 	ddi_put32(cmd->frame_dma_obj.acc_handle, &abort_fr->abort_context,
2496 	    cmd_to_abort->index);
2497 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2498 	    &abort_fr->abort_mfi_phys_addr_lo, cmd_to_abort->frame_phys_addr);
2499 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2500 	    &abort_fr->abort_mfi_phys_addr_hi, 0);
2501 
2502 	instance->aen_cmd->abort_aen = 1;
2503 
2504 	cmd->sync_cmd = MRSAS_TRUE;
2505 	cmd->frame_count = 1;
2506 
2507 	if (instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
2508 		con_log(CL_ANN1, (CE_WARN,
2509 		    "abort_aen_cmd: issue_cmd_in_poll_mode failed"));
2510 		ret = -1;
2511 	} else {
2512 		ret = 0;
2513 	}
2514 
2515 	instance->aen_cmd->abort_aen = 1;
2516 	instance->aen_cmd = 0;
2517 
2518 	atomic_add_16(&instance->fw_outstanding, (-1));
2519 
2520 	return (ret);
2521 }
2522 
2523 
2524 /*
2525  * init_mfi
2526  */
2527 static int
2528 init_mfi(struct mrsas_instance *instance)
2529 {
2530 	struct mrsas_cmd		*cmd;
2531 	struct mrsas_ctrl_info		ctrl_info;
2532 	struct mrsas_init_frame		*init_frame;
2533 	struct mrsas_init_queue_info	*initq_info;
2534 
2535 	/* we expect the FW state to be READY */
2536 	if (mfi_state_transition_to_ready(instance)) {
2537 		con_log(CL_ANN, (CE_WARN, "mr_sas: F/W is not ready"));
2538 		goto fail_ready_state;
2539 	}
2540 
2541 	/* get various operational parameters from status register */
2542 	instance->max_num_sge =
2543 	    (instance->func_ptr->read_fw_status_reg(instance) &
2544 	    0xFF0000) >> 0x10;
2545 	/*
2546 	 * Reduce the max supported cmds by 1. This is to ensure that the
2547 	 * reply_q_sz (1 more than the max cmd that driver may send)
2548 	 * does not exceed max cmds that the FW can support
2549 	 */
2550 	instance->max_fw_cmds =
2551 	    instance->func_ptr->read_fw_status_reg(instance) & 0xFFFF;
2552 	instance->max_fw_cmds = instance->max_fw_cmds - 1;
2553 
2554 	instance->max_num_sge =
2555 	    (instance->max_num_sge > MRSAS_MAX_SGE_CNT) ?
2556 	    MRSAS_MAX_SGE_CNT : instance->max_num_sge;
2557 
2558 	/* create a pool of commands */
2559 	if (alloc_space_for_mfi(instance) != DDI_SUCCESS)
2560 		goto fail_alloc_fw_space;
2561 
2562 	/*
2563 	 * Prepare a init frame. Note the init frame points to queue info
2564 	 * structure. Each frame has SGL allocated after first 64 bytes. For
2565 	 * this frame - since we don't need any SGL - we use SGL's space as
2566 	 * queue info structure
2567 	 */
2568 	cmd = get_mfi_pkt(instance);
2569 	cmd->retry_count_for_ocr = 0;
2570 
2571 	/* Clear the frame buffer and assign back the context id */
2572 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
2573 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
2574 	    cmd->index);
2575 
2576 	init_frame = (struct mrsas_init_frame *)cmd->frame;
2577 	initq_info = (struct mrsas_init_queue_info *)
2578 	    ((unsigned long)init_frame + 64);
2579 
2580 	(void) memset(init_frame, 0, MRMFI_FRAME_SIZE);
2581 	(void) memset(initq_info, 0, sizeof (struct mrsas_init_queue_info));
2582 
2583 	ddi_put32(cmd->frame_dma_obj.acc_handle, &initq_info->init_flags, 0);
2584 
2585 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2586 	    &initq_info->reply_queue_entries, instance->max_fw_cmds + 1);
2587 
2588 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2589 	    &initq_info->producer_index_phys_addr_hi, 0);
2590 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2591 	    &initq_info->producer_index_phys_addr_lo,
2592 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address);
2593 
2594 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2595 	    &initq_info->consumer_index_phys_addr_hi, 0);
2596 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2597 	    &initq_info->consumer_index_phys_addr_lo,
2598 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address + 4);
2599 
2600 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2601 	    &initq_info->reply_queue_start_phys_addr_hi, 0);
2602 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2603 	    &initq_info->reply_queue_start_phys_addr_lo,
2604 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address + 8);
2605 
2606 	ddi_put8(cmd->frame_dma_obj.acc_handle,
2607 	    &init_frame->cmd, MFI_CMD_OP_INIT);
2608 	ddi_put8(cmd->frame_dma_obj.acc_handle, &init_frame->cmd_status,
2609 	    MFI_CMD_STATUS_POLL_MODE);
2610 	ddi_put16(cmd->frame_dma_obj.acc_handle, &init_frame->flags, 0);
2611 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2612 	    &init_frame->queue_info_new_phys_addr_lo,
2613 	    cmd->frame_phys_addr + 64);
2614 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2615 	    &init_frame->queue_info_new_phys_addr_hi, 0);
2616 
2617 	ddi_put32(cmd->frame_dma_obj.acc_handle, &init_frame->data_xfer_len,
2618 	    sizeof (struct mrsas_init_queue_info));
2619 
2620 	cmd->frame_count = 1;
2621 
2622 	/* issue the init frame in polled mode */
2623 	if (instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
2624 		con_log(CL_ANN, (CE_WARN, "failed to init firmware"));
2625 		return_mfi_pkt(instance, cmd);
2626 		goto fail_fw_init;
2627 	}
2628 
2629 	if (mrsas_common_check(instance, cmd) != DDI_SUCCESS) {
2630 		return_mfi_pkt(instance, cmd);
2631 		goto fail_fw_init;
2632 	}
2633 	return_mfi_pkt(instance, cmd);
2634 
2635 	if (ctio_enable &&
2636 	    (instance->func_ptr->read_fw_status_reg(instance) & 0x04000000)) {
2637 		con_log(CL_ANN, (CE_NOTE, "mr_sas: IEEE SGL's supported"));
2638 		instance->flag_ieee = 1;
2639 	} else {
2640 		instance->flag_ieee = 0;
2641 	}
2642 
2643 	instance->disable_online_ctrl_reset = 0;
2644 	/* gather misc FW related information */
2645 	if (!get_ctrl_info(instance, &ctrl_info)) {
2646 		instance->max_sectors_per_req = ctrl_info.max_request_size;
2647 		con_log(CL_ANN1, (CE_NOTE,
2648 		    "product name %s ld present %d",
2649 		    ctrl_info.product_name, ctrl_info.ld_present_count));
2650 	} else {
2651 		instance->max_sectors_per_req = instance->max_num_sge *
2652 		    PAGESIZE / 512;
2653 	}
2654 
2655 	if (ctrl_info.properties.on_off_properties & DISABLE_OCR_PROP_FLAG)
2656 		instance->disable_online_ctrl_reset = 1;
2657 
2658 	return (DDI_SUCCESS);
2659 
2660 fail_fw_init:
2661 fail_alloc_fw_space:
2662 
2663 	free_space_for_mfi(instance);
2664 
2665 fail_ready_state:
2666 	ddi_regs_map_free(&instance->regmap_handle);
2667 
2668 fail_mfi_reg_setup:
2669 	return (DDI_FAILURE);
2670 }
2671 
2672 
2673 
2674 
2675 
2676 
2677 static int
2678 mrsas_issue_init_mfi(struct mrsas_instance *instance)
2679 {
2680 	struct mrsas_cmd		*cmd;
2681 	struct mrsas_init_frame		*init_frame;
2682 	struct mrsas_init_queue_info	*initq_info;
2683 
2684 /*
2685  * Prepare a init frame. Note the init frame points to queue info
2686  * structure. Each frame has SGL allocated after first 64 bytes. For
2687  * this frame - since we don't need any SGL - we use SGL's space as
2688  * queue info structure
2689  */
2690 	con_log(CL_ANN1, (CE_NOTE,
2691 	    "mrsas_issue_init_mfi: entry\n"));
2692 	cmd = get_mfi_app_pkt(instance);
2693 
2694 	if (!cmd) {
2695 		con_log(CL_ANN1, (CE_NOTE,
2696 		    "mrsas_issue_init_mfi: get_pkt failed\n"));
2697 		return (DDI_FAILURE);
2698 	}
2699 
2700 	/* Clear the frame buffer and assign back the context id */
2701 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
2702 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
2703 	    cmd->index);
2704 
2705 	init_frame = (struct mrsas_init_frame *)cmd->frame;
2706 	initq_info = (struct mrsas_init_queue_info *)
2707 	    ((unsigned long)init_frame + 64);
2708 
2709 	(void) memset(init_frame, 0, MRMFI_FRAME_SIZE);
2710 	(void) memset(initq_info, 0, sizeof (struct mrsas_init_queue_info));
2711 
2712 	ddi_put32(cmd->frame_dma_obj.acc_handle, &initq_info->init_flags, 0);
2713 
2714 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2715 	    &initq_info->reply_queue_entries, instance->max_fw_cmds + 1);
2716 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2717 	    &initq_info->producer_index_phys_addr_hi, 0);
2718 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2719 	    &initq_info->producer_index_phys_addr_lo,
2720 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address);
2721 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2722 	    &initq_info->consumer_index_phys_addr_hi, 0);
2723 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2724 	    &initq_info->consumer_index_phys_addr_lo,
2725 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address + 4);
2726 
2727 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2728 	    &initq_info->reply_queue_start_phys_addr_hi, 0);
2729 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2730 	    &initq_info->reply_queue_start_phys_addr_lo,
2731 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address + 8);
2732 
2733 	ddi_put8(cmd->frame_dma_obj.acc_handle,
2734 	    &init_frame->cmd, MFI_CMD_OP_INIT);
2735 	ddi_put8(cmd->frame_dma_obj.acc_handle, &init_frame->cmd_status,
2736 	    MFI_CMD_STATUS_POLL_MODE);
2737 	ddi_put16(cmd->frame_dma_obj.acc_handle, &init_frame->flags, 0);
2738 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2739 	    &init_frame->queue_info_new_phys_addr_lo,
2740 	    cmd->frame_phys_addr + 64);
2741 	ddi_put32(cmd->frame_dma_obj.acc_handle,
2742 	    &init_frame->queue_info_new_phys_addr_hi, 0);
2743 
2744 	ddi_put32(cmd->frame_dma_obj.acc_handle, &init_frame->data_xfer_len,
2745 	    sizeof (struct mrsas_init_queue_info));
2746 
2747 	cmd->frame_count = 1;
2748 
2749 	/* issue the init frame in polled mode */
2750 	if (instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
2751 		con_log(CL_ANN1, (CE_WARN,
2752 		    "mrsas_issue_init_mfi():failed to "
2753 		    "init firmware"));
2754 		return_mfi_app_pkt(instance, cmd);
2755 		return (DDI_FAILURE);
2756 	}
2757 	return_mfi_app_pkt(instance, cmd);
2758 	con_log(CL_ANN1, (CE_NOTE, "mrsas_issue_init_mfi: Done"));
2759 	return (DDI_SUCCESS);
2760 }
2761 /*
2762  * mfi_state_transition_to_ready	: Move the FW to READY state
2763  *
2764  * @reg_set			: MFI register set
2765  */
2766 static int
2767 mfi_state_transition_to_ready(struct mrsas_instance *instance)
2768 {
2769 	int		i;
2770 	uint8_t		max_wait;
2771 	uint32_t	fw_ctrl;
2772 	uint32_t	fw_state;
2773 	uint32_t	cur_state;
2774 	uint32_t	cur_abs_reg_val;
2775 	uint32_t	prev_abs_reg_val;
2776 
2777 	cur_abs_reg_val =
2778 	    instance->func_ptr->read_fw_status_reg(instance);
2779 	fw_state =
2780 	    cur_abs_reg_val & MFI_STATE_MASK;
2781 	con_log(CL_ANN1, (CE_NOTE,
2782 	    "mfi_state_transition_to_ready:FW state = 0x%x", fw_state));
2783 
2784 	while (fw_state != MFI_STATE_READY) {
2785 		con_log(CL_ANN, (CE_NOTE,
2786 		    "mfi_state_transition_to_ready:FW state%x", fw_state));
2787 
2788 		switch (fw_state) {
2789 		case MFI_STATE_FAULT:
2790 			con_log(CL_ANN1, (CE_NOTE,
2791 			    "mr_sas: FW in FAULT state!!"));
2792 
2793 			return (ENODEV);
2794 		case MFI_STATE_WAIT_HANDSHAKE:
2795 			/* set the CLR bit in IMR0 */
2796 			con_log(CL_ANN1, (CE_NOTE,
2797 			    "mr_sas: FW waiting for HANDSHAKE"));
2798 			/*
2799 			 * PCI_Hot Plug: MFI F/W requires
2800 			 * (MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG)
2801 			 * to be set
2802 			 */
2803 			/* WR_IB_MSG_0(MFI_INIT_CLEAR_HANDSHAKE, instance); */
2804 			WR_IB_DOORBELL(MFI_INIT_CLEAR_HANDSHAKE |
2805 			    MFI_INIT_HOTPLUG, instance);
2806 
2807 			max_wait	= 2;
2808 			cur_state	= MFI_STATE_WAIT_HANDSHAKE;
2809 			break;
2810 		case MFI_STATE_BOOT_MESSAGE_PENDING:
2811 			/* set the CLR bit in IMR0 */
2812 			con_log(CL_ANN1, (CE_NOTE,
2813 			    "mr_sas: FW state boot message pending"));
2814 			/*
2815 			 * PCI_Hot Plug: MFI F/W requires
2816 			 * (MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG)
2817 			 * to be set
2818 			 */
2819 			WR_IB_DOORBELL(MFI_INIT_HOTPLUG, instance);
2820 
2821 			max_wait	= 10;
2822 			cur_state	= MFI_STATE_BOOT_MESSAGE_PENDING;
2823 			break;
2824 		case MFI_STATE_OPERATIONAL:
2825 			/* bring it to READY state; assuming max wait 2 secs */
2826 			instance->func_ptr->disable_intr(instance);
2827 			con_log(CL_ANN1, (CE_NOTE,
2828 			    "mr_sas: FW in OPERATIONAL state"));
2829 			/*
2830 			 * PCI_Hot Plug: MFI F/W requires
2831 			 * (MFI_INIT_READY | MFI_INIT_MFIMODE | MFI_INIT_ABORT)
2832 			 * to be set
2833 			 */
2834 			/* WR_IB_DOORBELL(MFI_INIT_READY, instance); */
2835 			WR_IB_DOORBELL(MFI_RESET_FLAGS, instance);
2836 
2837 			max_wait	= 10;
2838 			cur_state	= MFI_STATE_OPERATIONAL;
2839 			break;
2840 		case MFI_STATE_UNDEFINED:
2841 			/* this state should not last for more than 2 seconds */
2842 			con_log(CL_ANN1, (CE_NOTE, "FW state undefined"));
2843 
2844 			max_wait	= 2;
2845 			cur_state	= MFI_STATE_UNDEFINED;
2846 			break;
2847 		case MFI_STATE_BB_INIT:
2848 			max_wait	= 2;
2849 			cur_state	= MFI_STATE_BB_INIT;
2850 			break;
2851 		case MFI_STATE_FW_INIT:
2852 			max_wait	= 2;
2853 			cur_state	= MFI_STATE_FW_INIT;
2854 			break;
2855 		case MFI_STATE_DEVICE_SCAN:
2856 			max_wait	= 180;
2857 			cur_state	= MFI_STATE_DEVICE_SCAN;
2858 			prev_abs_reg_val = cur_abs_reg_val;
2859 			con_log(CL_NONE, (CE_NOTE,
2860 			    "Device scan in progress ...\n"));
2861 			break;
2862 		default:
2863 			con_log(CL_ANN1, (CE_NOTE,
2864 			    "mr_sas: Unknown state 0x%x", fw_state));
2865 			return (ENODEV);
2866 		}
2867 
2868 		/* the cur_state should not last for more than max_wait secs */
2869 		for (i = 0; i < (max_wait * MILLISEC); i++) {
2870 			/* fw_state = RD_OB_MSG_0(instance) & MFI_STATE_MASK; */
2871 			cur_abs_reg_val =
2872 			    instance->func_ptr->read_fw_status_reg(instance);
2873 			fw_state = cur_abs_reg_val & MFI_STATE_MASK;
2874 
2875 			if (fw_state == cur_state) {
2876 				delay(1 * drv_usectohz(MILLISEC));
2877 			} else {
2878 				break;
2879 			}
2880 		}
2881 		if (fw_state == MFI_STATE_DEVICE_SCAN) {
2882 			if (prev_abs_reg_val != cur_abs_reg_val) {
2883 				continue;
2884 			}
2885 		}
2886 
2887 		/* return error if fw_state hasn't changed after max_wait */
2888 		if (fw_state == cur_state) {
2889 			con_log(CL_ANN1, (CE_NOTE,
2890 			    "FW state hasn't changed in %d secs", max_wait));
2891 			return (ENODEV);
2892 		}
2893 	};
2894 
2895 	fw_ctrl = RD_IB_DOORBELL(instance);
2896 
2897 	con_log(CL_ANN1, (CE_NOTE,
2898 	    "mfi_state_transition_to_ready:FW ctrl = 0x%x", fw_ctrl));
2899 
2900 	/*
2901 	 * Write 0xF to the doorbell register to do the following.
2902 	 * - Abort all outstanding commands (bit 0).
2903 	 * - Transition from OPERATIONAL to READY state (bit 1).
2904 	 * - Discard (possible) low MFA posted in 64-bit mode (bit-2).
2905 	 * - Set to release FW to continue running (i.e. BIOS handshake
2906 	 *   (bit 3).
2907 	 */
2908 	WR_IB_DOORBELL(0xF, instance);
2909 
2910 	if (mrsas_check_acc_handle(instance->regmap_handle) != DDI_SUCCESS) {
2911 		return (ENODEV);
2912 	}
2913 	return (DDI_SUCCESS);
2914 }
2915 
2916 /*
2917  * get_seq_num
2918  */
2919 static int
2920 get_seq_num(struct mrsas_instance *instance,
2921     struct mrsas_evt_log_info *eli)
2922 {
2923 	int	ret = DDI_SUCCESS;
2924 
2925 	dma_obj_t			dcmd_dma_obj;
2926 	struct mrsas_cmd		*cmd;
2927 	struct mrsas_dcmd_frame		*dcmd;
2928 	struct mrsas_evt_log_info *eli_tmp;
2929 	cmd = get_mfi_pkt(instance);
2930 
2931 	if (!cmd) {
2932 		cmn_err(CE_WARN, "mr_sas: failed to get a cmd");
2933 		DTRACE_PROBE2(seq_num_mfi_err, uint16_t,
2934 		    instance->fw_outstanding, uint16_t, instance->max_fw_cmds);
2935 		return (ENOMEM);
2936 	}
2937 	cmd->retry_count_for_ocr = 0;
2938 	/* Clear the frame buffer and assign back the context id */
2939 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
2940 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
2941 	    cmd->index);
2942 
2943 	dcmd	= &cmd->frame->dcmd;
2944 
2945 	/* allocate the data transfer buffer */
2946 	dcmd_dma_obj.size = sizeof (struct mrsas_evt_log_info);
2947 	dcmd_dma_obj.dma_attr = mrsas_generic_dma_attr;
2948 	dcmd_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
2949 	dcmd_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
2950 	dcmd_dma_obj.dma_attr.dma_attr_sgllen = 1;
2951 	dcmd_dma_obj.dma_attr.dma_attr_align = 1;
2952 
2953 	if (mrsas_alloc_dma_obj(instance, &dcmd_dma_obj,
2954 	    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
2955 		con_log(CL_ANN, (CE_WARN,
2956 		    "get_seq_num: could not allocate data transfer buffer."));
2957 		return (DDI_FAILURE);
2958 	}
2959 
2960 	(void) memset(dcmd_dma_obj.buffer, 0,
2961 	    sizeof (struct mrsas_evt_log_info));
2962 
2963 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
2964 
2965 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
2966 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status, 0);
2967 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 1);
2968 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
2969 	    MFI_FRAME_DIR_READ);
2970 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
2971 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len,
2972 	    sizeof (struct mrsas_evt_log_info));
2973 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
2974 	    MR_DCMD_CTRL_EVENT_GET_INFO);
2975 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].length,
2976 	    sizeof (struct mrsas_evt_log_info));
2977 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].phys_addr,
2978 	    dcmd_dma_obj.dma_cookie[0].dmac_address);
2979 
2980 	cmd->sync_cmd = MRSAS_TRUE;
2981 	cmd->frame_count = 1;
2982 
2983 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
2984 		cmn_err(CE_WARN, "get_seq_num: "
2985 		    "failed to issue MRSAS_DCMD_CTRL_EVENT_GET_INFO");
2986 		ret = DDI_FAILURE;
2987 	} else {
2988 		eli_tmp = (struct mrsas_evt_log_info *)dcmd_dma_obj.buffer;
2989 		eli->newest_seq_num = ddi_get32(cmd->frame_dma_obj.acc_handle,
2990 		    &eli_tmp->newest_seq_num);
2991 		ret = DDI_SUCCESS;
2992 	}
2993 
2994 	if (mrsas_free_dma_obj(instance, dcmd_dma_obj) != DDI_SUCCESS)
2995 		ret = DDI_FAILURE;
2996 
2997 	if (mrsas_common_check(instance, cmd) != DDI_SUCCESS) {
2998 		ret = DDI_FAILURE;
2999 	}
3000 
3001 	return_mfi_pkt(instance, cmd);
3002 
3003 	return (ret);
3004 }
3005 
3006 /*
3007  * start_mfi_aen
3008  */
3009 static int
3010 start_mfi_aen(struct mrsas_instance *instance)
3011 {
3012 	int	ret = 0;
3013 
3014 	struct mrsas_evt_log_info	eli;
3015 	union mrsas_evt_class_locale	class_locale;
3016 
3017 	/* get the latest sequence number from FW */
3018 	(void) memset(&eli, 0, sizeof (struct mrsas_evt_log_info));
3019 
3020 	if (get_seq_num(instance, &eli)) {
3021 		cmn_err(CE_WARN, "start_mfi_aen: failed to get seq num");
3022 		return (-1);
3023 	}
3024 
3025 	/* register AEN with FW for latest sequence number plus 1 */
3026 	class_locale.members.reserved	= 0;
3027 	class_locale.members.locale	= LE_16(MR_EVT_LOCALE_ALL);
3028 	class_locale.members.class	= MR_EVT_CLASS_INFO;
3029 	class_locale.word	= LE_32(class_locale.word);
3030 	ret = register_mfi_aen(instance, eli.newest_seq_num + 1,
3031 	    class_locale.word);
3032 
3033 	if (ret) {
3034 		cmn_err(CE_WARN, "start_mfi_aen: aen registration failed");
3035 		return (-1);
3036 	}
3037 
3038 	return (ret);
3039 }
3040 
3041 /*
3042  * flush_cache
3043  */
3044 static void
3045 flush_cache(struct mrsas_instance *instance)
3046 {
3047 	struct mrsas_cmd		*cmd = NULL;
3048 	struct mrsas_dcmd_frame		*dcmd;
3049 	uint32_t	max_cmd = instance->max_fw_cmds;
3050 
3051 	cmd = instance->cmd_list[max_cmd];
3052 
3053 	if (!cmd) {
3054 		con_log(CL_ANN1, (CE_WARN,
3055 		    "flush_cache():Failed to get a cmd for flush_cache"));
3056 		DTRACE_PROBE2(flush_cache_err, uint16_t,
3057 		    instance->fw_outstanding, uint16_t, instance->max_fw_cmds);
3058 		return;
3059 	}
3060 	cmd->retry_count_for_ocr = 0;
3061 	/* Clear the frame buffer and assign back the context id */
3062 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
3063 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
3064 	    cmd->index);
3065 
3066 	dcmd = &cmd->frame->dcmd;
3067 
3068 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
3069 
3070 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
3071 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status, 0x0);
3072 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 0);
3073 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
3074 	    MFI_FRAME_DIR_NONE);
3075 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
3076 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len, 0);
3077 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
3078 	    MR_DCMD_CTRL_CACHE_FLUSH);
3079 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->mbox.b[0],
3080 	    MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE);
3081 
3082 	cmd->frame_count = 1;
3083 
3084 	if (instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
3085 		con_log(CL_ANN1, (CE_WARN,
3086 	    "flush_cache: failed to issue MFI_DCMD_CTRL_CACHE_FLUSH"));
3087 	}
3088 	con_log(CL_ANN1, (CE_NOTE, "flush_cache done"));
3089 }
3090 
3091 /*
3092  * service_mfi_aen-	Completes an AEN command
3093  * @instance:			Adapter soft state
3094  * @cmd:			Command to be completed
3095  *
3096  */
3097 static void
3098 service_mfi_aen(struct mrsas_instance *instance, struct mrsas_cmd *cmd)
3099 {
3100 	uint32_t	seq_num;
3101 	struct mrsas_evt_detail *evt_detail =
3102 	    (struct mrsas_evt_detail *)instance->mfi_evt_detail_obj.buffer;
3103 	int		rval = 0;
3104 	int		tgt = 0;
3105 	ddi_acc_handle_t		acc_handle;
3106 
3107 	acc_handle = cmd->frame_dma_obj.acc_handle;
3108 
3109 	cmd->cmd_status = ddi_get8(acc_handle, &cmd->frame->io.cmd_status);
3110 
3111 	if (cmd->cmd_status == ENODATA) {
3112 		cmd->cmd_status = 0;
3113 	}
3114 
3115 	/*
3116 	 * log the MFI AEN event to the sysevent queue so that
3117 	 * application will get noticed
3118 	 */
3119 	if (ddi_log_sysevent(instance->dip, DDI_VENDOR_LSI, "LSIMEGA", "SAS",
3120 	    NULL, NULL, DDI_NOSLEEP) != DDI_SUCCESS) {
3121 		int	instance_no = ddi_get_instance(instance->dip);
3122 		con_log(CL_ANN, (CE_WARN,
3123 		    "mr_sas%d: Failed to log AEN event", instance_no));
3124 	}
3125 	/*
3126 	 * Check for any ld devices that has changed state. i.e. online
3127 	 * or offline.
3128 	 */
3129 	con_log(CL_ANN1, (CE_NOTE,
3130 	    "AEN: code = %x class = %x locale = %x args = %x",
3131 	    ddi_get32(acc_handle, &evt_detail->code),
3132 	    evt_detail->cl.members.class,
3133 	    ddi_get16(acc_handle, &evt_detail->cl.members.locale),
3134 	    ddi_get8(acc_handle, &evt_detail->arg_type)));
3135 
3136 	switch (ddi_get32(acc_handle, &evt_detail->code)) {
3137 	case MR_EVT_CFG_CLEARED: {
3138 		for (tgt = 0; tgt < MRDRV_MAX_LD; tgt++) {
3139 			if (instance->mr_ld_list[tgt].dip != NULL) {
3140 				rval = mrsas_service_evt(instance, tgt, 0,
3141 				    MRSAS_EVT_UNCONFIG_TGT, NULL);
3142 				con_log(CL_ANN1, (CE_WARN,
3143 				    "mr_sas: CFG CLEARED AEN rval = %d "
3144 				    "tgt id = %d", rval, tgt));
3145 			}
3146 		}
3147 		break;
3148 	}
3149 
3150 	case MR_EVT_LD_DELETED: {
3151 		rval = mrsas_service_evt(instance,
3152 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id), 0,
3153 		    MRSAS_EVT_UNCONFIG_TGT, NULL);
3154 		con_log(CL_ANN1, (CE_WARN, "mr_sas: LD DELETED AEN rval = %d "
3155 		    "tgt id = %d index = %d", rval,
3156 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id),
3157 		    ddi_get8(acc_handle, &evt_detail->args.ld.ld_index)));
3158 		break;
3159 	} /* End of MR_EVT_LD_DELETED */
3160 
3161 	case MR_EVT_LD_CREATED: {
3162 		rval = mrsas_service_evt(instance,
3163 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id), 0,
3164 		    MRSAS_EVT_CONFIG_TGT, NULL);
3165 		con_log(CL_ANN1, (CE_WARN, "mr_sas: LD CREATED AEN rval = %d "
3166 		    "tgt id = %d index = %d", rval,
3167 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id),
3168 		    ddi_get8(acc_handle, &evt_detail->args.ld.ld_index)));
3169 		break;
3170 	} /* End of MR_EVT_LD_CREATED */
3171 	} /* End of Main Switch */
3172 
3173 	/* get copy of seq_num and class/locale for re-registration */
3174 	seq_num = ddi_get32(acc_handle, &evt_detail->seq_num);
3175 	seq_num++;
3176 	(void) memset(instance->mfi_evt_detail_obj.buffer, 0,
3177 	    sizeof (struct mrsas_evt_detail));
3178 
3179 	ddi_put8(acc_handle, &cmd->frame->dcmd.cmd_status, 0x0);
3180 	ddi_put32(acc_handle, &cmd->frame->dcmd.mbox.w[0], seq_num);
3181 
3182 	instance->aen_seq_num = seq_num;
3183 
3184 	cmd->frame_count = 1;
3185 
3186 	/* Issue the aen registration frame */
3187 	instance->func_ptr->issue_cmd(cmd, instance);
3188 }
3189 
3190 /*
3191  * complete_cmd_in_sync_mode -	Completes an internal command
3192  * @instance:			Adapter soft state
3193  * @cmd:			Command to be completed
3194  *
3195  * The issue_cmd_in_sync_mode() function waits for a command to complete
3196  * after it issues a command. This function wakes up that waiting routine by
3197  * calling wake_up() on the wait queue.
3198  */
3199 static void
3200 complete_cmd_in_sync_mode(struct mrsas_instance *instance,
3201     struct mrsas_cmd *cmd)
3202 {
3203 	cmd->cmd_status = ddi_get8(cmd->frame_dma_obj.acc_handle,
3204 	    &cmd->frame->io.cmd_status);
3205 
3206 	cmd->sync_cmd = MRSAS_FALSE;
3207 
3208 	if (cmd->cmd_status == ENODATA) {
3209 		cmd->cmd_status = 0;
3210 	}
3211 
3212 	con_log(CL_ANN1, (CE_NOTE, "complete_cmd_in_sync_mode called %p \n",
3213 	    (void *)cmd));
3214 
3215 	cv_broadcast(&instance->int_cmd_cv);
3216 }
3217 
3218 /*
3219  * Call this function inside mrsas_softintr.
3220  * mrsas_initiate_ocr_if_fw_is_faulty  - Initiates OCR if FW status is faulty
3221  * @instance:			Adapter soft state
3222  */
3223 
3224 static uint32_t
3225 mrsas_initiate_ocr_if_fw_is_faulty(struct mrsas_instance *instance)
3226 {
3227 	uint32_t	cur_abs_reg_val;
3228 	uint32_t	fw_state;
3229 
3230 	cur_abs_reg_val =  instance->func_ptr->read_fw_status_reg(instance);
3231 	fw_state = cur_abs_reg_val & MFI_STATE_MASK;
3232 	if (fw_state == MFI_STATE_FAULT) {
3233 
3234 		if (instance->disable_online_ctrl_reset == 1) {
3235 		con_log(CL_ANN1, (CE_NOTE,
3236 		    "mrsas_initiate_ocr_if_fw_is_faulty: "
3237 		    "FW in Fault state, detected in ISR: "
3238 		    "FW doesn't support ocr "));
3239 		return (ADAPTER_RESET_NOT_REQUIRED);
3240 		} else {
3241 		con_log(CL_ANN1, (CE_NOTE,
3242 		    "mrsas_initiate_ocr_if_fw_is_faulty: "
3243 		    "FW in Fault state, detected in ISR: FW supports ocr "));
3244 			return (ADAPTER_RESET_REQUIRED);
3245 		}
3246 	}
3247 	return (ADAPTER_RESET_NOT_REQUIRED);
3248 }
3249 
3250 /*
3251  * mrsas_softintr - The Software ISR
3252  * @param arg	: HBA soft state
3253  *
3254  * called from high-level interrupt if hi-level interrupt are not there,
3255  * otherwise triggered as a soft interrupt
3256  */
3257 static uint_t
3258 mrsas_softintr(struct mrsas_instance *instance)
3259 {
3260 	struct scsi_pkt		*pkt;
3261 	struct scsa_cmd		*acmd;
3262 	struct mrsas_cmd	*cmd;
3263 	struct mlist_head	*pos, *next;
3264 	mlist_t			process_list;
3265 	struct mrsas_header	*hdr;
3266 	struct scsi_arq_status	*arqstat;
3267 
3268 	con_log(CL_ANN1, (CE_CONT, "mrsas_softintr called"));
3269 
3270 	ASSERT(instance);
3271 
3272 	mutex_enter(&instance->completed_pool_mtx);
3273 
3274 	if (mlist_empty(&instance->completed_pool_list)) {
3275 		mutex_exit(&instance->completed_pool_mtx);
3276 		return (DDI_INTR_CLAIMED);
3277 	}
3278 
3279 	instance->softint_running = 1;
3280 
3281 	INIT_LIST_HEAD(&process_list);
3282 	mlist_splice(&instance->completed_pool_list, &process_list);
3283 	INIT_LIST_HEAD(&instance->completed_pool_list);
3284 
3285 	mutex_exit(&instance->completed_pool_mtx);
3286 
3287 	/* perform all callbacks first, before releasing the SCBs */
3288 	mlist_for_each_safe(pos, next, &process_list) {
3289 		cmd = mlist_entry(pos, struct mrsas_cmd, list);
3290 
3291 		/* syncronize the Cmd frame for the controller */
3292 		(void) ddi_dma_sync(cmd->frame_dma_obj.dma_handle,
3293 		    0, 0, DDI_DMA_SYNC_FORCPU);
3294 
3295 		if (mrsas_check_dma_handle(cmd->frame_dma_obj.dma_handle) !=
3296 		    DDI_SUCCESS) {
3297 			mrsas_fm_ereport(instance, DDI_FM_DEVICE_NO_RESPONSE);
3298 			ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
3299 			con_log(CL_ANN1, (CE_WARN,
3300 			    "mrsas_softintr: "
3301 			    "FMA check reports DMA handle failure"));
3302 			return (DDI_INTR_CLAIMED);
3303 		}
3304 
3305 		hdr = &cmd->frame->hdr;
3306 
3307 		/* remove the internal command from the process list */
3308 		mlist_del_init(&cmd->list);
3309 
3310 		switch (ddi_get8(cmd->frame_dma_obj.acc_handle, &hdr->cmd)) {
3311 		case MFI_CMD_OP_PD_SCSI:
3312 		case MFI_CMD_OP_LD_SCSI:
3313 		case MFI_CMD_OP_LD_READ:
3314 		case MFI_CMD_OP_LD_WRITE:
3315 			/*
3316 			 * MFI_CMD_OP_PD_SCSI and MFI_CMD_OP_LD_SCSI
3317 			 * could have been issued either through an
3318 			 * IO path or an IOCTL path. If it was via IOCTL,
3319 			 * we will send it to internal completion.
3320 			 */
3321 			if (cmd->sync_cmd == MRSAS_TRUE) {
3322 				complete_cmd_in_sync_mode(instance, cmd);
3323 				break;
3324 			}
3325 
3326 			/* regular commands */
3327 			acmd =	cmd->cmd;
3328 			pkt =	CMD2PKT(acmd);
3329 
3330 			if (acmd->cmd_flags & CFLAG_DMAVALID) {
3331 				if (acmd->cmd_flags & CFLAG_CONSISTENT) {
3332 					(void) ddi_dma_sync(acmd->cmd_dmahandle,
3333 					    acmd->cmd_dma_offset,
3334 					    acmd->cmd_dma_len,
3335 					    DDI_DMA_SYNC_FORCPU);
3336 				}
3337 			}
3338 
3339 			pkt->pkt_reason		= CMD_CMPLT;
3340 			pkt->pkt_statistics	= 0;
3341 			pkt->pkt_state = STATE_GOT_BUS
3342 			    | STATE_GOT_TARGET | STATE_SENT_CMD
3343 			    | STATE_XFERRED_DATA | STATE_GOT_STATUS;
3344 
3345 			con_log(CL_ANN1, (CE_CONT,
3346 			    "CDB[0] = %x completed for %s: size %lx context %x",
3347 			    pkt->pkt_cdbp[0], ((acmd->islogical) ? "LD" : "PD"),
3348 			    acmd->cmd_dmacount, hdr->context));
3349 			DTRACE_PROBE3(softintr_cdb, uint8_t, pkt->pkt_cdbp[0],
3350 			    uint_t, acmd->cmd_cdblen, ulong_t,
3351 			    acmd->cmd_dmacount);
3352 
3353 			if (pkt->pkt_cdbp[0] == SCMD_INQUIRY) {
3354 				struct scsi_inquiry	*inq;
3355 
3356 				if (acmd->cmd_dmacount != 0) {
3357 					bp_mapin(acmd->cmd_buf);
3358 					inq = (struct scsi_inquiry *)
3359 					    acmd->cmd_buf->b_un.b_addr;
3360 
3361 					/* don't expose physical drives to OS */
3362 					if (acmd->islogical &&
3363 					    (hdr->cmd_status == MFI_STAT_OK)) {
3364 						display_scsi_inquiry(
3365 						    (caddr_t)inq);
3366 					} else if ((hdr->cmd_status ==
3367 					    MFI_STAT_OK) && inq->inq_dtype ==
3368 					    DTYPE_DIRECT) {
3369 
3370 						display_scsi_inquiry(
3371 						    (caddr_t)inq);
3372 
3373 						/* for physical disk */
3374 						hdr->cmd_status =
3375 						    MFI_STAT_DEVICE_NOT_FOUND;
3376 					}
3377 				}
3378 			}
3379 
3380 			DTRACE_PROBE2(softintr_done, uint8_t, hdr->cmd,
3381 			    uint8_t, hdr->cmd_status);
3382 
3383 			switch (hdr->cmd_status) {
3384 			case MFI_STAT_OK:
3385 				pkt->pkt_scbp[0] = STATUS_GOOD;
3386 				break;
3387 			case MFI_STAT_LD_CC_IN_PROGRESS:
3388 			case MFI_STAT_LD_RECON_IN_PROGRESS:
3389 				pkt->pkt_scbp[0] = STATUS_GOOD;
3390 				break;
3391 			case MFI_STAT_LD_INIT_IN_PROGRESS:
3392 				con_log(CL_ANN,
3393 				    (CE_WARN, "Initialization in Progress"));
3394 				pkt->pkt_reason	= CMD_TRAN_ERR;
3395 
3396 				break;
3397 			case MFI_STAT_SCSI_DONE_WITH_ERROR:
3398 				con_log(CL_ANN1, (CE_CONT, "scsi_done error"));
3399 
3400 				pkt->pkt_reason	= CMD_CMPLT;
3401 				((struct scsi_status *)
3402 				    pkt->pkt_scbp)->sts_chk = 1;
3403 
3404 				if (pkt->pkt_cdbp[0] == SCMD_TEST_UNIT_READY) {
3405 
3406 					con_log(CL_ANN,
3407 					    (CE_WARN, "TEST_UNIT_READY fail"));
3408 
3409 				} else {
3410 					pkt->pkt_state |= STATE_ARQ_DONE;
3411 					arqstat = (void *)(pkt->pkt_scbp);
3412 					arqstat->sts_rqpkt_reason = CMD_CMPLT;
3413 					arqstat->sts_rqpkt_resid = 0;
3414 					arqstat->sts_rqpkt_state |=
3415 					    STATE_GOT_BUS | STATE_GOT_TARGET
3416 					    | STATE_SENT_CMD
3417 					    | STATE_XFERRED_DATA;
3418 					*(uint8_t *)&arqstat->sts_rqpkt_status =
3419 					    STATUS_GOOD;
3420 					ddi_rep_get8(
3421 					    cmd->frame_dma_obj.acc_handle,
3422 					    (uint8_t *)
3423 					    &(arqstat->sts_sensedata),
3424 					    cmd->sense,
3425 					    acmd->cmd_scblen -
3426 					    offsetof(struct scsi_arq_status,
3427 					    sts_sensedata), DDI_DEV_AUTOINCR);
3428 			}
3429 				break;
3430 			case MFI_STAT_LD_OFFLINE:
3431 			case MFI_STAT_DEVICE_NOT_FOUND:
3432 				con_log(CL_ANN1, (CE_CONT,
3433 				"mrsas_softintr:device not found error"));
3434 				pkt->pkt_reason	= CMD_DEV_GONE;
3435 				pkt->pkt_statistics  = STAT_DISCON;
3436 				break;
3437 			case MFI_STAT_LD_LBA_OUT_OF_RANGE:
3438 				pkt->pkt_state |= STATE_ARQ_DONE;
3439 				pkt->pkt_reason	= CMD_CMPLT;
3440 				((struct scsi_status *)
3441 				    pkt->pkt_scbp)->sts_chk = 1;
3442 
3443 				arqstat = (void *)(pkt->pkt_scbp);
3444 				arqstat->sts_rqpkt_reason = CMD_CMPLT;
3445 				arqstat->sts_rqpkt_resid = 0;
3446 				arqstat->sts_rqpkt_state |= STATE_GOT_BUS
3447 				    | STATE_GOT_TARGET | STATE_SENT_CMD
3448 				    | STATE_XFERRED_DATA;
3449 				*(uint8_t *)&arqstat->sts_rqpkt_status =
3450 				    STATUS_GOOD;
3451 
3452 				arqstat->sts_sensedata.es_valid = 1;
3453 				arqstat->sts_sensedata.es_key =
3454 				    KEY_ILLEGAL_REQUEST;
3455 				arqstat->sts_sensedata.es_class =
3456 				    CLASS_EXTENDED_SENSE;
3457 
3458 				/*
3459 				 * LOGICAL BLOCK ADDRESS OUT OF RANGE:
3460 				 * ASC: 0x21h; ASCQ: 0x00h;
3461 				 */
3462 				arqstat->sts_sensedata.es_add_code = 0x21;
3463 				arqstat->sts_sensedata.es_qual_code = 0x00;
3464 
3465 				break;
3466 
3467 			default:
3468 				con_log(CL_ANN, (CE_CONT, "Unknown status!"));
3469 				pkt->pkt_reason	= CMD_TRAN_ERR;
3470 
3471 				break;
3472 			}
3473 
3474 			atomic_add_16(&instance->fw_outstanding, (-1));
3475 
3476 			(void) mrsas_common_check(instance, cmd);
3477 
3478 			if (acmd->cmd_dmahandle) {
3479 				if (mrsas_check_dma_handle(
3480 				    acmd->cmd_dmahandle) != DDI_SUCCESS) {
3481 					ddi_fm_service_impact(instance->dip,
3482 					    DDI_SERVICE_UNAFFECTED);
3483 					pkt->pkt_reason = CMD_TRAN_ERR;
3484 					pkt->pkt_statistics = 0;
3485 				}
3486 			}
3487 
3488 			/* Call the callback routine */
3489 			if (((pkt->pkt_flags & FLAG_NOINTR) == 0) &&
3490 			    pkt->pkt_comp) {
3491 
3492 				con_log(CL_ANN1, (CE_NOTE, "mrsas_softintr: "
3493 				    "posting to scsa cmd %p index %x pkt %p "
3494 				    "time %llx", (void *)cmd, cmd->index,
3495 				    (void *)pkt, gethrtime()));
3496 				(*pkt->pkt_comp)(pkt);
3497 
3498 			}
3499 			return_mfi_pkt(instance, cmd);
3500 			break;
3501 		case MFI_CMD_OP_SMP:
3502 		case MFI_CMD_OP_STP:
3503 			complete_cmd_in_sync_mode(instance, cmd);
3504 			break;
3505 		case MFI_CMD_OP_DCMD:
3506 			/* see if got an event notification */
3507 			if (ddi_get32(cmd->frame_dma_obj.acc_handle,
3508 			    &cmd->frame->dcmd.opcode) ==
3509 			    MR_DCMD_CTRL_EVENT_WAIT) {
3510 				if ((instance->aen_cmd == cmd) &&
3511 				    (instance->aen_cmd->abort_aen)) {
3512 					con_log(CL_ANN, (CE_WARN,
3513 					    "mrsas_softintr: "
3514 					    "aborted_aen returned"));
3515 				} else {
3516 					atomic_add_16(&instance->fw_outstanding,
3517 					    (-1));
3518 					service_mfi_aen(instance, cmd);
3519 				}
3520 			} else {
3521 				complete_cmd_in_sync_mode(instance, cmd);
3522 			}
3523 
3524 			break;
3525 		case MFI_CMD_OP_ABORT:
3526 			con_log(CL_ANN, (CE_WARN, "MFI_CMD_OP_ABORT complete"));
3527 			/*
3528 			 * MFI_CMD_OP_ABORT successfully completed
3529 			 * in the synchronous mode
3530 			 */
3531 			complete_cmd_in_sync_mode(instance, cmd);
3532 			break;
3533 		default:
3534 			mrsas_fm_ereport(instance, DDI_FM_DEVICE_NO_RESPONSE);
3535 			ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
3536 
3537 			if (cmd->pkt != NULL) {
3538 				pkt = cmd->pkt;
3539 				if (((pkt->pkt_flags & FLAG_NOINTR) == 0) &&
3540 				    pkt->pkt_comp) {
3541 
3542 					con_log(CL_ANN1, (CE_CONT, "posting to "
3543 					    "scsa cmd %p index %x pkt %p"
3544 					    "time %llx, default ", (void *)cmd,
3545 					    cmd->index, (void *)pkt,
3546 					    gethrtime()));
3547 
3548 					(*pkt->pkt_comp)(pkt);
3549 
3550 				}
3551 			}
3552 			con_log(CL_ANN, (CE_WARN, "Cmd type unknown !"));
3553 			break;
3554 		}
3555 	}
3556 
3557 	instance->softint_running = 0;
3558 
3559 	return (DDI_INTR_CLAIMED);
3560 }
3561 
3562 /*
3563  * mrsas_alloc_dma_obj
3564  *
3565  * Allocate the memory and other resources for an dma object.
3566  */
3567 static int
3568 mrsas_alloc_dma_obj(struct mrsas_instance *instance, dma_obj_t *obj,
3569     uchar_t endian_flags)
3570 {
3571 	int	i;
3572 	size_t	alen = 0;
3573 	uint_t	cookie_cnt;
3574 	struct ddi_device_acc_attr tmp_endian_attr;
3575 
3576 	tmp_endian_attr = endian_attr;
3577 	tmp_endian_attr.devacc_attr_endian_flags = endian_flags;
3578 	tmp_endian_attr.devacc_attr_access = DDI_DEFAULT_ACC;
3579 
3580 	i = ddi_dma_alloc_handle(instance->dip, &obj->dma_attr,
3581 	    DDI_DMA_SLEEP, NULL, &obj->dma_handle);
3582 	if (i != DDI_SUCCESS) {
3583 
3584 		switch (i) {
3585 			case DDI_DMA_BADATTR :
3586 				con_log(CL_ANN, (CE_WARN,
3587 				"Failed ddi_dma_alloc_handle- Bad attribute"));
3588 				break;
3589 			case DDI_DMA_NORESOURCES :
3590 				con_log(CL_ANN, (CE_WARN,
3591 				"Failed ddi_dma_alloc_handle- No Resources"));
3592 				break;
3593 			default :
3594 				con_log(CL_ANN, (CE_WARN,
3595 				"Failed ddi_dma_alloc_handle: "
3596 				"unknown status %d", i));
3597 				break;
3598 		}
3599 
3600 		return (-1);
3601 	}
3602 
3603 	if ((ddi_dma_mem_alloc(obj->dma_handle, obj->size, &tmp_endian_attr,
3604 	    DDI_DMA_RDWR | DDI_DMA_STREAMING, DDI_DMA_SLEEP, NULL,
3605 	    &obj->buffer, &alen, &obj->acc_handle) != DDI_SUCCESS) ||
3606 	    alen < obj->size) {
3607 
3608 		ddi_dma_free_handle(&obj->dma_handle);
3609 
3610 		con_log(CL_ANN, (CE_WARN, "Failed : ddi_dma_mem_alloc"));
3611 
3612 		return (-1);
3613 	}
3614 
3615 	if (ddi_dma_addr_bind_handle(obj->dma_handle, NULL, obj->buffer,
3616 	    obj->size, DDI_DMA_RDWR | DDI_DMA_STREAMING, DDI_DMA_SLEEP,
3617 	    NULL, &obj->dma_cookie[0], &cookie_cnt) != DDI_SUCCESS) {
3618 
3619 		ddi_dma_mem_free(&obj->acc_handle);
3620 		ddi_dma_free_handle(&obj->dma_handle);
3621 
3622 		con_log(CL_ANN, (CE_WARN, "Failed : ddi_dma_addr_bind_handle"));
3623 
3624 		return (-1);
3625 	}
3626 
3627 	if (mrsas_check_dma_handle(obj->dma_handle) != DDI_SUCCESS) {
3628 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
3629 		return (-1);
3630 	}
3631 
3632 	if (mrsas_check_acc_handle(obj->acc_handle) != DDI_SUCCESS) {
3633 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
3634 		return (-1);
3635 	}
3636 
3637 	return (cookie_cnt);
3638 }
3639 
3640 /*
3641  * mrsas_free_dma_obj(struct mrsas_instance *, dma_obj_t)
3642  *
3643  * De-allocate the memory and other resources for an dma object, which must
3644  * have been alloated by a previous call to mrsas_alloc_dma_obj()
3645  */
3646 static int
3647 mrsas_free_dma_obj(struct mrsas_instance *instance, dma_obj_t obj)
3648 {
3649 
3650 	if (mrsas_check_dma_handle(obj.dma_handle) != DDI_SUCCESS) {
3651 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
3652 		return (DDI_FAILURE);
3653 	}
3654 
3655 	if (mrsas_check_acc_handle(obj.acc_handle) != DDI_SUCCESS) {
3656 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
3657 		return (DDI_FAILURE);
3658 	}
3659 
3660 	(void) ddi_dma_unbind_handle(obj.dma_handle);
3661 	ddi_dma_mem_free(&obj.acc_handle);
3662 	ddi_dma_free_handle(&obj.dma_handle);
3663 
3664 	return (DDI_SUCCESS);
3665 }
3666 
3667 /*
3668  * mrsas_dma_alloc(instance_t *, struct scsi_pkt *, struct buf *,
3669  * int, int (*)())
3670  *
3671  * Allocate dma resources for a new scsi command
3672  */
3673 static int
3674 mrsas_dma_alloc(struct mrsas_instance *instance, struct scsi_pkt *pkt,
3675     struct buf *bp, int flags, int (*callback)())
3676 {
3677 	int	dma_flags;
3678 	int	(*cb)(caddr_t);
3679 	int	i;
3680 
3681 	ddi_dma_attr_t	tmp_dma_attr = mrsas_generic_dma_attr;
3682 	struct scsa_cmd	*acmd = PKT2CMD(pkt);
3683 
3684 	acmd->cmd_buf = bp;
3685 
3686 	if (bp->b_flags & B_READ) {
3687 		acmd->cmd_flags &= ~CFLAG_DMASEND;
3688 		dma_flags = DDI_DMA_READ;
3689 	} else {
3690 		acmd->cmd_flags |= CFLAG_DMASEND;
3691 		dma_flags = DDI_DMA_WRITE;
3692 	}
3693 
3694 	if (flags & PKT_CONSISTENT) {
3695 		acmd->cmd_flags |= CFLAG_CONSISTENT;
3696 		dma_flags |= DDI_DMA_CONSISTENT;
3697 	}
3698 
3699 	if (flags & PKT_DMA_PARTIAL) {
3700 		dma_flags |= DDI_DMA_PARTIAL;
3701 	}
3702 
3703 	dma_flags |= DDI_DMA_REDZONE;
3704 
3705 	cb = (callback == NULL_FUNC) ? DDI_DMA_DONTWAIT : DDI_DMA_SLEEP;
3706 
3707 	tmp_dma_attr.dma_attr_sgllen = instance->max_num_sge;
3708 	tmp_dma_attr.dma_attr_addr_hi = 0xffffffffffffffffull;
3709 
3710 	if ((i = ddi_dma_alloc_handle(instance->dip, &tmp_dma_attr,
3711 	    cb, 0, &acmd->cmd_dmahandle)) != DDI_SUCCESS) {
3712 		switch (i) {
3713 		case DDI_DMA_BADATTR:
3714 			bioerror(bp, EFAULT);
3715 			return (DDI_FAILURE);
3716 
3717 		case DDI_DMA_NORESOURCES:
3718 			bioerror(bp, 0);
3719 			return (DDI_FAILURE);
3720 
3721 		default:
3722 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_alloc_handle: "
3723 			    "impossible result (0x%x)", i));
3724 			bioerror(bp, EFAULT);
3725 			return (DDI_FAILURE);
3726 		}
3727 	}
3728 
3729 	i = ddi_dma_buf_bind_handle(acmd->cmd_dmahandle, bp, dma_flags,
3730 	    cb, 0, &acmd->cmd_dmacookies[0], &acmd->cmd_ncookies);
3731 
3732 	switch (i) {
3733 	case DDI_DMA_PARTIAL_MAP:
3734 		if ((dma_flags & DDI_DMA_PARTIAL) == 0) {
3735 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_buf_bind_handle: "
3736 			    "DDI_DMA_PARTIAL_MAP impossible"));
3737 			goto no_dma_cookies;
3738 		}
3739 
3740 		if (ddi_dma_numwin(acmd->cmd_dmahandle, &acmd->cmd_nwin) ==
3741 		    DDI_FAILURE) {
3742 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_numwin failed"));
3743 			goto no_dma_cookies;
3744 		}
3745 
3746 		if (ddi_dma_getwin(acmd->cmd_dmahandle, acmd->cmd_curwin,
3747 		    &acmd->cmd_dma_offset, &acmd->cmd_dma_len,
3748 		    &acmd->cmd_dmacookies[0], &acmd->cmd_ncookies) ==
3749 		    DDI_FAILURE) {
3750 
3751 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_getwin failed"));
3752 			goto no_dma_cookies;
3753 		}
3754 
3755 		goto get_dma_cookies;
3756 	case DDI_DMA_MAPPED:
3757 		acmd->cmd_nwin = 1;
3758 		acmd->cmd_dma_len = 0;
3759 		acmd->cmd_dma_offset = 0;
3760 
3761 get_dma_cookies:
3762 		i = 0;
3763 		acmd->cmd_dmacount = 0;
3764 		for (;;) {
3765 			acmd->cmd_dmacount +=
3766 			    acmd->cmd_dmacookies[i++].dmac_size;
3767 
3768 			if (i == instance->max_num_sge ||
3769 			    i == acmd->cmd_ncookies)
3770 				break;
3771 
3772 			ddi_dma_nextcookie(acmd->cmd_dmahandle,
3773 			    &acmd->cmd_dmacookies[i]);
3774 		}
3775 
3776 		acmd->cmd_cookie = i;
3777 		acmd->cmd_cookiecnt = i;
3778 
3779 		acmd->cmd_flags |= CFLAG_DMAVALID;
3780 
3781 		if (bp->b_bcount >= acmd->cmd_dmacount) {
3782 			pkt->pkt_resid = bp->b_bcount - acmd->cmd_dmacount;
3783 		} else {
3784 			pkt->pkt_resid = 0;
3785 		}
3786 
3787 		return (DDI_SUCCESS);
3788 	case DDI_DMA_NORESOURCES:
3789 		bioerror(bp, 0);
3790 		break;
3791 	case DDI_DMA_NOMAPPING:
3792 		bioerror(bp, EFAULT);
3793 		break;
3794 	case DDI_DMA_TOOBIG:
3795 		bioerror(bp, EINVAL);
3796 		break;
3797 	case DDI_DMA_INUSE:
3798 		con_log(CL_ANN, (CE_PANIC, "ddi_dma_buf_bind_handle:"
3799 		    " DDI_DMA_INUSE impossible"));
3800 		break;
3801 	default:
3802 		con_log(CL_ANN, (CE_PANIC, "ddi_dma_buf_bind_handle: "
3803 		    "impossible result (0x%x)", i));
3804 		break;
3805 	}
3806 
3807 no_dma_cookies:
3808 	ddi_dma_free_handle(&acmd->cmd_dmahandle);
3809 	acmd->cmd_dmahandle = NULL;
3810 	acmd->cmd_flags &= ~CFLAG_DMAVALID;
3811 	return (DDI_FAILURE);
3812 }
3813 
3814 /*
3815  * mrsas_dma_move(struct mrsas_instance *, struct scsi_pkt *, struct buf *)
3816  *
3817  * move dma resources to next dma window
3818  *
3819  */
3820 static int
3821 mrsas_dma_move(struct mrsas_instance *instance, struct scsi_pkt *pkt,
3822     struct buf *bp)
3823 {
3824 	int	i = 0;
3825 
3826 	struct scsa_cmd	*acmd = PKT2CMD(pkt);
3827 
3828 	/*
3829 	 * If there are no more cookies remaining in this window,
3830 	 * must move to the next window first.
3831 	 */
3832 	if (acmd->cmd_cookie == acmd->cmd_ncookies) {
3833 		if (acmd->cmd_curwin == acmd->cmd_nwin && acmd->cmd_nwin == 1) {
3834 			return (DDI_SUCCESS);
3835 		}
3836 
3837 		/* at last window, cannot move */
3838 		if (++acmd->cmd_curwin >= acmd->cmd_nwin) {
3839 			return (DDI_FAILURE);
3840 		}
3841 
3842 		if (ddi_dma_getwin(acmd->cmd_dmahandle, acmd->cmd_curwin,
3843 		    &acmd->cmd_dma_offset, &acmd->cmd_dma_len,
3844 		    &acmd->cmd_dmacookies[0], &acmd->cmd_ncookies) ==
3845 		    DDI_FAILURE) {
3846 			return (DDI_FAILURE);
3847 		}
3848 
3849 		acmd->cmd_cookie = 0;
3850 	} else {
3851 		/* still more cookies in this window - get the next one */
3852 		ddi_dma_nextcookie(acmd->cmd_dmahandle,
3853 		    &acmd->cmd_dmacookies[0]);
3854 	}
3855 
3856 	/* get remaining cookies in this window, up to our maximum */
3857 	for (;;) {
3858 		acmd->cmd_dmacount += acmd->cmd_dmacookies[i++].dmac_size;
3859 		acmd->cmd_cookie++;
3860 
3861 		if (i == instance->max_num_sge ||
3862 		    acmd->cmd_cookie == acmd->cmd_ncookies) {
3863 			break;
3864 		}
3865 
3866 		ddi_dma_nextcookie(acmd->cmd_dmahandle,
3867 		    &acmd->cmd_dmacookies[i]);
3868 	}
3869 
3870 	acmd->cmd_cookiecnt = i;
3871 
3872 	if (bp->b_bcount >= acmd->cmd_dmacount) {
3873 		pkt->pkt_resid = bp->b_bcount - acmd->cmd_dmacount;
3874 	} else {
3875 		pkt->pkt_resid = 0;
3876 	}
3877 
3878 	return (DDI_SUCCESS);
3879 }
3880 
3881 /*
3882  * build_cmd
3883  */
3884 static struct mrsas_cmd *
3885 build_cmd(struct mrsas_instance *instance, struct scsi_address *ap,
3886     struct scsi_pkt *pkt, uchar_t *cmd_done)
3887 {
3888 	uint16_t	flags = 0;
3889 	uint32_t	i;
3890 	uint32_t 	context;
3891 	uint32_t	sge_bytes;
3892 	ddi_acc_handle_t acc_handle;
3893 	struct mrsas_cmd		*cmd;
3894 	struct mrsas_sge64		*mfi_sgl;
3895 	struct mrsas_sge_ieee		*mfi_sgl_ieee;
3896 	struct scsa_cmd			*acmd = PKT2CMD(pkt);
3897 	struct mrsas_pthru_frame 	*pthru;
3898 	struct mrsas_io_frame		*ldio;
3899 
3900 	/* find out if this is logical or physical drive command.  */
3901 	acmd->islogical = MRDRV_IS_LOGICAL(ap);
3902 	acmd->device_id = MAP_DEVICE_ID(instance, ap);
3903 	*cmd_done = 0;
3904 
3905 	/* get the command packet */
3906 	if (!(cmd = get_mfi_pkt(instance))) {
3907 		DTRACE_PROBE2(build_cmd_mfi_err, uint16_t,
3908 		    instance->fw_outstanding, uint16_t, instance->max_fw_cmds);
3909 		return (NULL);
3910 	}
3911 
3912 	cmd->retry_count_for_ocr = 0;
3913 
3914 	acc_handle = cmd->frame_dma_obj.acc_handle;
3915 
3916 	/* Clear the frame buffer and assign back the context id */
3917 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
3918 	ddi_put32(acc_handle, &cmd->frame->hdr.context, cmd->index);
3919 
3920 	cmd->pkt = pkt;
3921 	cmd->cmd = acmd;
3922 	DTRACE_PROBE3(build_cmds, uint8_t, pkt->pkt_cdbp[0],
3923 	    ulong_t, acmd->cmd_dmacount, ulong_t, acmd->cmd_dma_len);
3924 
3925 	/* lets get the command directions */
3926 	if (acmd->cmd_flags & CFLAG_DMASEND) {
3927 		flags = MFI_FRAME_DIR_WRITE;
3928 
3929 		if (acmd->cmd_flags & CFLAG_CONSISTENT) {
3930 			(void) ddi_dma_sync(acmd->cmd_dmahandle,
3931 			    acmd->cmd_dma_offset, acmd->cmd_dma_len,
3932 			    DDI_DMA_SYNC_FORDEV);
3933 		}
3934 	} else if (acmd->cmd_flags & ~CFLAG_DMASEND) {
3935 		flags = MFI_FRAME_DIR_READ;
3936 
3937 		if (acmd->cmd_flags & CFLAG_CONSISTENT) {
3938 			(void) ddi_dma_sync(acmd->cmd_dmahandle,
3939 			    acmd->cmd_dma_offset, acmd->cmd_dma_len,
3940 			    DDI_DMA_SYNC_FORCPU);
3941 		}
3942 	} else {
3943 		flags = MFI_FRAME_DIR_NONE;
3944 	}
3945 
3946 	if (instance->flag_ieee) {
3947 		flags |= MFI_FRAME_IEEE;
3948 	}
3949 	flags |= MFI_FRAME_SGL64;
3950 
3951 	switch (pkt->pkt_cdbp[0]) {
3952 
3953 	/*
3954 	 * case SCMD_SYNCHRONIZE_CACHE:
3955 	 * 	flush_cache(instance);
3956 	 *	return_mfi_pkt(instance, cmd);
3957 	 *	*cmd_done = 1;
3958 	 *
3959 	 *	return (NULL);
3960 	 */
3961 
3962 	case SCMD_READ:
3963 	case SCMD_WRITE:
3964 	case SCMD_READ_G1:
3965 	case SCMD_WRITE_G1:
3966 		if (acmd->islogical) {
3967 			ldio = (struct mrsas_io_frame *)cmd->frame;
3968 
3969 			/*
3970 			 * preare the Logical IO frame:
3971 			 * 2nd bit is zero for all read cmds
3972 			 */
3973 			ddi_put8(acc_handle, &ldio->cmd,
3974 			    (pkt->pkt_cdbp[0] & 0x02) ? MFI_CMD_OP_LD_WRITE
3975 			    : MFI_CMD_OP_LD_READ);
3976 			ddi_put8(acc_handle, &ldio->cmd_status, 0x0);
3977 			ddi_put8(acc_handle, &ldio->scsi_status, 0x0);
3978 			ddi_put8(acc_handle, &ldio->target_id, acmd->device_id);
3979 			ddi_put16(acc_handle, &ldio->timeout, 0);
3980 			ddi_put8(acc_handle, &ldio->reserved_0, 0);
3981 			ddi_put16(acc_handle, &ldio->pad_0, 0);
3982 			ddi_put16(acc_handle, &ldio->flags, flags);
3983 
3984 			/* Initialize sense Information */
3985 			bzero(cmd->sense, SENSE_LENGTH);
3986 			ddi_put8(acc_handle, &ldio->sense_len, SENSE_LENGTH);
3987 			ddi_put32(acc_handle, &ldio->sense_buf_phys_addr_hi, 0);
3988 			ddi_put32(acc_handle, &ldio->sense_buf_phys_addr_lo,
3989 			    cmd->sense_phys_addr);
3990 			ddi_put32(acc_handle, &ldio->start_lba_hi, 0);
3991 			ddi_put8(acc_handle, &ldio->access_byte,
3992 			    (acmd->cmd_cdblen != 6) ? pkt->pkt_cdbp[1] : 0);
3993 			ddi_put8(acc_handle, &ldio->sge_count,
3994 			    acmd->cmd_cookiecnt);
3995 			if (instance->flag_ieee) {
3996 				mfi_sgl_ieee =
3997 				    (struct mrsas_sge_ieee *)&ldio->sgl;
3998 			} else {
3999 				mfi_sgl = (struct mrsas_sge64	*)&ldio->sgl;
4000 			}
4001 
4002 			context = ddi_get32(acc_handle, &ldio->context);
4003 
4004 			if (acmd->cmd_cdblen == CDB_GROUP0) {
4005 				ddi_put32(acc_handle, &ldio->lba_count, (
4006 				    (uint16_t)(pkt->pkt_cdbp[4])));
4007 
4008 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
4009 				    ((uint32_t)(pkt->pkt_cdbp[3])) |
4010 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 8) |
4011 				    ((uint32_t)((pkt->pkt_cdbp[1]) & 0x1F)
4012 				    << 16)));
4013 			} else if (acmd->cmd_cdblen == CDB_GROUP1) {
4014 				ddi_put32(acc_handle, &ldio->lba_count, (
4015 				    ((uint16_t)(pkt->pkt_cdbp[8])) |
4016 				    ((uint16_t)(pkt->pkt_cdbp[7]) << 8)));
4017 
4018 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
4019 				    ((uint32_t)(pkt->pkt_cdbp[5])) |
4020 				    ((uint32_t)(pkt->pkt_cdbp[4]) << 8) |
4021 				    ((uint32_t)(pkt->pkt_cdbp[3]) << 16) |
4022 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 24)));
4023 			} else if (acmd->cmd_cdblen == CDB_GROUP2) {
4024 				ddi_put32(acc_handle, &ldio->lba_count, (
4025 				    ((uint16_t)(pkt->pkt_cdbp[9])) |
4026 				    ((uint16_t)(pkt->pkt_cdbp[8]) << 8) |
4027 				    ((uint16_t)(pkt->pkt_cdbp[7]) << 16) |
4028 				    ((uint16_t)(pkt->pkt_cdbp[6]) << 24)));
4029 
4030 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
4031 				    ((uint32_t)(pkt->pkt_cdbp[5])) |
4032 				    ((uint32_t)(pkt->pkt_cdbp[4]) << 8) |
4033 				    ((uint32_t)(pkt->pkt_cdbp[3]) << 16) |
4034 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 24)));
4035 			} else if (acmd->cmd_cdblen == CDB_GROUP3) {
4036 				ddi_put32(acc_handle, &ldio->lba_count, (
4037 				    ((uint16_t)(pkt->pkt_cdbp[13])) |
4038 				    ((uint16_t)(pkt->pkt_cdbp[12]) << 8) |
4039 				    ((uint16_t)(pkt->pkt_cdbp[11]) << 16) |
4040 				    ((uint16_t)(pkt->pkt_cdbp[10]) << 24)));
4041 
4042 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
4043 				    ((uint32_t)(pkt->pkt_cdbp[9])) |
4044 				    ((uint32_t)(pkt->pkt_cdbp[8]) << 8) |
4045 				    ((uint32_t)(pkt->pkt_cdbp[7]) << 16) |
4046 				    ((uint32_t)(pkt->pkt_cdbp[6]) << 24)));
4047 
4048 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
4049 				    ((uint32_t)(pkt->pkt_cdbp[5])) |
4050 				    ((uint32_t)(pkt->pkt_cdbp[4]) << 8) |
4051 				    ((uint32_t)(pkt->pkt_cdbp[3]) << 16) |
4052 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 24)));
4053 			}
4054 
4055 			break;
4056 		}
4057 		/* fall through For all non-rd/wr cmds */
4058 	default:
4059 
4060 		switch (pkt->pkt_cdbp[0]) {
4061 		case SCMD_MODE_SENSE:
4062 		case SCMD_MODE_SENSE_G1: {
4063 			union scsi_cdb	*cdbp;
4064 			uint16_t	page_code;
4065 
4066 			cdbp = (void *)pkt->pkt_cdbp;
4067 			page_code = (uint16_t)cdbp->cdb_un.sg.scsi[0];
4068 			switch (page_code) {
4069 			case 0x3:
4070 			case 0x4:
4071 				(void) mrsas_mode_sense_build(pkt);
4072 				return_mfi_pkt(instance, cmd);
4073 				*cmd_done = 1;
4074 				return (NULL);
4075 			}
4076 			break;
4077 		}
4078 		default:
4079 			break;
4080 		}
4081 
4082 		pthru	= (struct mrsas_pthru_frame *)cmd->frame;
4083 
4084 		/* prepare the DCDB frame */
4085 		ddi_put8(acc_handle, &pthru->cmd, (acmd->islogical) ?
4086 		    MFI_CMD_OP_LD_SCSI : MFI_CMD_OP_PD_SCSI);
4087 		ddi_put8(acc_handle, &pthru->cmd_status, 0x0);
4088 		ddi_put8(acc_handle, &pthru->scsi_status, 0x0);
4089 		ddi_put8(acc_handle, &pthru->target_id, acmd->device_id);
4090 		ddi_put8(acc_handle, &pthru->lun, 0);
4091 		ddi_put8(acc_handle, &pthru->cdb_len, acmd->cmd_cdblen);
4092 		ddi_put16(acc_handle, &pthru->timeout, 0);
4093 		ddi_put16(acc_handle, &pthru->flags, flags);
4094 		ddi_put32(acc_handle, &pthru->data_xfer_len,
4095 		    acmd->cmd_dmacount);
4096 		ddi_put8(acc_handle, &pthru->sge_count, acmd->cmd_cookiecnt);
4097 		if (instance->flag_ieee) {
4098 			mfi_sgl_ieee = (struct mrsas_sge_ieee *)&pthru->sgl;
4099 		} else {
4100 			mfi_sgl	= (struct mrsas_sge64 *)&pthru->sgl;
4101 		}
4102 
4103 		bzero(cmd->sense, SENSE_LENGTH);
4104 		ddi_put8(acc_handle, &pthru->sense_len, SENSE_LENGTH);
4105 		ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_hi, 0);
4106 		ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_lo,
4107 		    cmd->sense_phys_addr);
4108 
4109 		context = ddi_get32(acc_handle, &pthru->context);
4110 		ddi_rep_put8(acc_handle, (uint8_t *)pkt->pkt_cdbp,
4111 		    (uint8_t *)pthru->cdb, acmd->cmd_cdblen, DDI_DEV_AUTOINCR);
4112 
4113 		break;
4114 	}
4115 #ifdef lint
4116 	context = context;
4117 #endif
4118 	/* prepare the scatter-gather list for the firmware */
4119 	if (instance->flag_ieee) {
4120 		for (i = 0; i < acmd->cmd_cookiecnt; i++, mfi_sgl_ieee++) {
4121 			ddi_put64(acc_handle, &mfi_sgl_ieee->phys_addr,
4122 			    acmd->cmd_dmacookies[i].dmac_laddress);
4123 			ddi_put32(acc_handle, &mfi_sgl_ieee->length,
4124 			    acmd->cmd_dmacookies[i].dmac_size);
4125 		}
4126 		sge_bytes = sizeof (struct mrsas_sge_ieee)*acmd->cmd_cookiecnt;
4127 	} else {
4128 		for (i = 0; i < acmd->cmd_cookiecnt; i++, mfi_sgl++) {
4129 			ddi_put64(acc_handle, &mfi_sgl->phys_addr,
4130 			    acmd->cmd_dmacookies[i].dmac_laddress);
4131 			ddi_put32(acc_handle, &mfi_sgl->length,
4132 			    acmd->cmd_dmacookies[i].dmac_size);
4133 		}
4134 		sge_bytes = sizeof (struct mrsas_sge64)*acmd->cmd_cookiecnt;
4135 	}
4136 
4137 	cmd->frame_count = (sge_bytes / MRMFI_FRAME_SIZE) +
4138 	    ((sge_bytes % MRMFI_FRAME_SIZE) ? 1 : 0) + 1;
4139 
4140 	if (cmd->frame_count >= 8) {
4141 		cmd->frame_count = 8;
4142 	}
4143 
4144 	return (cmd);
4145 }
4146 #ifndef __sparc
4147 static int
4148 wait_for_outstanding(struct mrsas_instance *instance)
4149 {
4150 	int		i;
4151 	uint32_t	wait_time = 90;
4152 
4153 	for (i = 0; i < wait_time; i++) {
4154 		if (!instance->fw_outstanding) {
4155 			break;
4156 		}
4157 		drv_usecwait(MILLISEC); /* wait for 1000 usecs */;
4158 	}
4159 
4160 	if (instance->fw_outstanding) {
4161 		return (1);
4162 	}
4163 
4164 	return (0);
4165 }
4166 #endif  /* __sparc */
4167 /*
4168  * issue_mfi_pthru
4169  */
4170 static int
4171 issue_mfi_pthru(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
4172     struct mrsas_cmd *cmd, int mode)
4173 {
4174 	void		*ubuf;
4175 	uint32_t	kphys_addr = 0;
4176 	uint32_t	xferlen = 0;
4177 	uint_t		model;
4178 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
4179 	dma_obj_t			pthru_dma_obj;
4180 	struct mrsas_pthru_frame	*kpthru;
4181 	struct mrsas_pthru_frame	*pthru;
4182 	int i;
4183 	pthru = &cmd->frame->pthru;
4184 	kpthru = (struct mrsas_pthru_frame *)&ioctl->frame[0];
4185 
4186 	if (instance->adapterresetinprogress) {
4187 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_pthru: Reset flag set, "
4188 		"returning mfi_pkt and setting TRAN_BUSY\n"));
4189 		return (DDI_FAILURE);
4190 	}
4191 	model = ddi_model_convert_from(mode & FMODELS);
4192 	if (model == DDI_MODEL_ILP32) {
4193 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_pthru: DDI_MODEL_LP32"));
4194 
4195 		xferlen	= kpthru->sgl.sge32[0].length;
4196 
4197 		ubuf	= (void *)(ulong_t)kpthru->sgl.sge32[0].phys_addr;
4198 	} else {
4199 #ifdef _ILP32
4200 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_pthru: DDI_MODEL_LP32"));
4201 		xferlen	= kpthru->sgl.sge32[0].length;
4202 		ubuf	= (void *)(ulong_t)kpthru->sgl.sge32[0].phys_addr;
4203 #else
4204 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_pthru: DDI_MODEL_LP64"));
4205 		xferlen	= kpthru->sgl.sge64[0].length;
4206 		ubuf	= (void *)(ulong_t)kpthru->sgl.sge64[0].phys_addr;
4207 #endif
4208 	}
4209 
4210 	if (xferlen) {
4211 		/* means IOCTL requires DMA */
4212 		/* allocate the data transfer buffer */
4213 		pthru_dma_obj.size = xferlen;
4214 		pthru_dma_obj.dma_attr = mrsas_generic_dma_attr;
4215 		pthru_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
4216 		pthru_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
4217 		pthru_dma_obj.dma_attr.dma_attr_sgllen = 1;
4218 		pthru_dma_obj.dma_attr.dma_attr_align = 1;
4219 
4220 		/* allocate kernel buffer for DMA */
4221 		if (mrsas_alloc_dma_obj(instance, &pthru_dma_obj,
4222 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
4223 			con_log(CL_ANN, (CE_WARN, "issue_mfi_pthru: "
4224 			    "could not allocate data transfer buffer."));
4225 			return (DDI_FAILURE);
4226 		}
4227 		(void) memset(pthru_dma_obj.buffer, 0, xferlen);
4228 
4229 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
4230 		if (kpthru->flags & MFI_FRAME_DIR_WRITE) {
4231 			for (i = 0; i < xferlen; i++) {
4232 				if (ddi_copyin((uint8_t *)ubuf+i,
4233 				    (uint8_t *)pthru_dma_obj.buffer+i,
4234 				    1, mode)) {
4235 					con_log(CL_ANN, (CE_WARN,
4236 					    "issue_mfi_pthru : "
4237 					    "copy from user space failed"));
4238 					return (DDI_FAILURE);
4239 				}
4240 			}
4241 		}
4242 
4243 		kphys_addr = pthru_dma_obj.dma_cookie[0].dmac_address;
4244 	}
4245 
4246 	ddi_put8(acc_handle, &pthru->cmd, kpthru->cmd);
4247 	ddi_put8(acc_handle, &pthru->sense_len, 0);
4248 	ddi_put8(acc_handle, &pthru->cmd_status, 0);
4249 	ddi_put8(acc_handle, &pthru->scsi_status, 0);
4250 	ddi_put8(acc_handle, &pthru->target_id, kpthru->target_id);
4251 	ddi_put8(acc_handle, &pthru->lun, kpthru->lun);
4252 	ddi_put8(acc_handle, &pthru->cdb_len, kpthru->cdb_len);
4253 	ddi_put8(acc_handle, &pthru->sge_count, kpthru->sge_count);
4254 	ddi_put16(acc_handle, &pthru->timeout, kpthru->timeout);
4255 	ddi_put32(acc_handle, &pthru->data_xfer_len, kpthru->data_xfer_len);
4256 
4257 	ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_hi, 0);
4258 	/* pthru->sense_buf_phys_addr_lo = cmd->sense_phys_addr; */
4259 	ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_lo, 0);
4260 
4261 	ddi_rep_put8(acc_handle, (uint8_t *)kpthru->cdb, (uint8_t *)pthru->cdb,
4262 	    pthru->cdb_len, DDI_DEV_AUTOINCR);
4263 
4264 	ddi_put16(acc_handle, &pthru->flags, kpthru->flags & ~MFI_FRAME_SGL64);
4265 	ddi_put32(acc_handle, &pthru->sgl.sge32[0].length, xferlen);
4266 	ddi_put32(acc_handle, &pthru->sgl.sge32[0].phys_addr, kphys_addr);
4267 
4268 	cmd->sync_cmd = MRSAS_TRUE;
4269 	cmd->frame_count = 1;
4270 
4271 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
4272 		con_log(CL_ANN, (CE_WARN,
4273 		    "issue_mfi_pthru: fw_ioctl failed"));
4274 	} else {
4275 		if (xferlen && kpthru->flags & MFI_FRAME_DIR_READ) {
4276 			for (i = 0; i < xferlen; i++) {
4277 				if (ddi_copyout(
4278 				    (uint8_t *)pthru_dma_obj.buffer+i,
4279 				    (uint8_t *)ubuf+i, 1, mode)) {
4280 					con_log(CL_ANN, (CE_WARN,
4281 					    "issue_mfi_pthru : "
4282 					    "copy to user space failed"));
4283 					return (DDI_FAILURE);
4284 				}
4285 			}
4286 		}
4287 	}
4288 
4289 	kpthru->cmd_status = ddi_get8(acc_handle, &pthru->cmd_status);
4290 	kpthru->scsi_status = ddi_get8(acc_handle, &pthru->scsi_status);
4291 
4292 	con_log(CL_ANN, (CE_NOTE, "issue_mfi_pthru: cmd_status %x, "
4293 	    "scsi_status %x", kpthru->cmd_status, kpthru->scsi_status));
4294 	DTRACE_PROBE3(issue_pthru, uint8_t, kpthru->cmd, uint8_t,
4295 	    kpthru->cmd_status, uint8_t, kpthru->scsi_status);
4296 
4297 	if (xferlen) {
4298 		/* free kernel buffer */
4299 		if (mrsas_free_dma_obj(instance, pthru_dma_obj) != DDI_SUCCESS)
4300 			return (DDI_FAILURE);
4301 	}
4302 
4303 	return (DDI_SUCCESS);
4304 }
4305 
4306 /*
4307  * issue_mfi_dcmd
4308  */
4309 static int
4310 issue_mfi_dcmd(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
4311     struct mrsas_cmd *cmd, int mode)
4312 {
4313 	void		*ubuf;
4314 	uint32_t	kphys_addr = 0;
4315 	uint32_t	xferlen = 0;
4316 	uint32_t	model;
4317 	dma_obj_t	dcmd_dma_obj;
4318 	struct mrsas_dcmd_frame	*kdcmd;
4319 	struct mrsas_dcmd_frame	*dcmd;
4320 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
4321 	int i;
4322 	dcmd = &cmd->frame->dcmd;
4323 	kdcmd = (struct mrsas_dcmd_frame *)&ioctl->frame[0];
4324 	if (instance->adapterresetinprogress) {
4325 		con_log(CL_ANN1, (CE_NOTE, "Reset flag set, "
4326 		"returning mfi_pkt and setting TRAN_BUSY\n"));
4327 		return (DDI_FAILURE);
4328 	}
4329 	model = ddi_model_convert_from(mode & FMODELS);
4330 	if (model == DDI_MODEL_ILP32) {
4331 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_dcmd: DDI_MODEL_ILP32"));
4332 
4333 		xferlen	= kdcmd->sgl.sge32[0].length;
4334 
4335 		ubuf	= (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
4336 	} else {
4337 #ifdef _ILP32
4338 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_dcmd: DDI_MODEL_ILP32"));
4339 		xferlen	= kdcmd->sgl.sge32[0].length;
4340 		ubuf	= (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
4341 #else
4342 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_dcmd: DDI_MODEL_LP64"));
4343 		xferlen	= kdcmd->sgl.sge64[0].length;
4344 		ubuf	= (void *)(ulong_t)kdcmd->sgl.sge64[0].phys_addr;
4345 #endif
4346 	}
4347 	if (xferlen) {
4348 		/* means IOCTL requires DMA */
4349 		/* allocate the data transfer buffer */
4350 		dcmd_dma_obj.size = xferlen;
4351 		dcmd_dma_obj.dma_attr = mrsas_generic_dma_attr;
4352 		dcmd_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
4353 		dcmd_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
4354 		dcmd_dma_obj.dma_attr.dma_attr_sgllen = 1;
4355 		dcmd_dma_obj.dma_attr.dma_attr_align = 1;
4356 
4357 		/* allocate kernel buffer for DMA */
4358 		if (mrsas_alloc_dma_obj(instance, &dcmd_dma_obj,
4359 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
4360 			con_log(CL_ANN, (CE_WARN, "issue_mfi_dcmd: "
4361 			    "could not allocate data transfer buffer."));
4362 			return (DDI_FAILURE);
4363 		}
4364 		(void) memset(dcmd_dma_obj.buffer, 0, xferlen);
4365 
4366 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
4367 		if (kdcmd->flags & MFI_FRAME_DIR_WRITE) {
4368 			for (i = 0; i < xferlen; i++) {
4369 				if (ddi_copyin((uint8_t *)ubuf + i,
4370 				    (uint8_t *)dcmd_dma_obj.buffer + i,
4371 				    1, mode)) {
4372 					con_log(CL_ANN, (CE_WARN,
4373 					    "issue_mfi_dcmd : "
4374 					    "copy from user space failed"));
4375 					return (DDI_FAILURE);
4376 				}
4377 			}
4378 		}
4379 
4380 		kphys_addr = dcmd_dma_obj.dma_cookie[0].dmac_address;
4381 	}
4382 
4383 	ddi_put8(acc_handle, &dcmd->cmd, kdcmd->cmd);
4384 	ddi_put8(acc_handle, &dcmd->cmd_status, 0);
4385 	ddi_put8(acc_handle, &dcmd->sge_count, kdcmd->sge_count);
4386 	ddi_put16(acc_handle, &dcmd->timeout, kdcmd->timeout);
4387 	ddi_put32(acc_handle, &dcmd->data_xfer_len, kdcmd->data_xfer_len);
4388 	ddi_put32(acc_handle, &dcmd->opcode, kdcmd->opcode);
4389 
4390 	ddi_rep_put8(acc_handle, (uint8_t *)kdcmd->mbox.b,
4391 	    (uint8_t *)dcmd->mbox.b, DCMD_MBOX_SZ, DDI_DEV_AUTOINCR);
4392 
4393 	ddi_put16(acc_handle, &dcmd->flags, kdcmd->flags & ~MFI_FRAME_SGL64);
4394 	ddi_put32(acc_handle, &dcmd->sgl.sge32[0].length, xferlen);
4395 	ddi_put32(acc_handle, &dcmd->sgl.sge32[0].phys_addr, kphys_addr);
4396 
4397 	cmd->sync_cmd = MRSAS_TRUE;
4398 	cmd->frame_count = 1;
4399 
4400 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
4401 		con_log(CL_ANN, (CE_WARN, "issue_mfi_dcmd: fw_ioctl failed"));
4402 	} else {
4403 		if (xferlen && (kdcmd->flags & MFI_FRAME_DIR_READ)) {
4404 			for (i = 0; i < xferlen; i++) {
4405 				if (ddi_copyout(
4406 				    (uint8_t *)dcmd_dma_obj.buffer + i,
4407 				    (uint8_t *)ubuf + i,
4408 				    1, mode)) {
4409 					con_log(CL_ANN, (CE_WARN,
4410 					    "issue_mfi_dcmd : "
4411 					    "copy to user space failed"));
4412 					return (DDI_FAILURE);
4413 				}
4414 			}
4415 		}
4416 	}
4417 
4418 	kdcmd->cmd_status = ddi_get8(acc_handle, &dcmd->cmd_status);
4419 	DTRACE_PROBE3(issue_dcmd, uint32_t, kdcmd->opcode, uint8_t,
4420 	    kdcmd->cmd, uint8_t, kdcmd->cmd_status);
4421 
4422 	if (xferlen) {
4423 		/* free kernel buffer */
4424 		if (mrsas_free_dma_obj(instance, dcmd_dma_obj) != DDI_SUCCESS)
4425 			return (DDI_FAILURE);
4426 	}
4427 
4428 	return (DDI_SUCCESS);
4429 }
4430 
4431 /*
4432  * issue_mfi_smp
4433  */
4434 static int
4435 issue_mfi_smp(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
4436     struct mrsas_cmd *cmd, int mode)
4437 {
4438 	void		*request_ubuf;
4439 	void		*response_ubuf;
4440 	uint32_t	request_xferlen = 0;
4441 	uint32_t	response_xferlen = 0;
4442 	uint_t		model;
4443 	dma_obj_t			request_dma_obj;
4444 	dma_obj_t			response_dma_obj;
4445 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
4446 	struct mrsas_smp_frame		*ksmp;
4447 	struct mrsas_smp_frame		*smp;
4448 	struct mrsas_sge32		*sge32;
4449 #ifndef _ILP32
4450 	struct mrsas_sge64		*sge64;
4451 #endif
4452 	int i;
4453 	uint64_t			tmp_sas_addr;
4454 
4455 	smp = &cmd->frame->smp;
4456 	ksmp = (struct mrsas_smp_frame *)&ioctl->frame[0];
4457 
4458 	if (instance->adapterresetinprogress) {
4459 		con_log(CL_ANN1, (CE_NOTE, "Reset flag set, "
4460 		"returning mfi_pkt and setting TRAN_BUSY\n"));
4461 		return (DDI_FAILURE);
4462 	}
4463 	model = ddi_model_convert_from(mode & FMODELS);
4464 	if (model == DDI_MODEL_ILP32) {
4465 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: DDI_MODEL_ILP32"));
4466 
4467 		sge32			= &ksmp->sgl[0].sge32[0];
4468 		response_xferlen	= sge32[0].length;
4469 		request_xferlen		= sge32[1].length;
4470 		con_log(CL_ANN, (CE_NOTE, "issue_mfi_smp: "
4471 		    "response_xferlen = %x, request_xferlen = %x",
4472 		    response_xferlen, request_xferlen));
4473 
4474 		response_ubuf	= (void *)(ulong_t)sge32[0].phys_addr;
4475 		request_ubuf	= (void *)(ulong_t)sge32[1].phys_addr;
4476 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: "
4477 		    "response_ubuf = %p, request_ubuf = %p",
4478 		    response_ubuf, request_ubuf));
4479 	} else {
4480 #ifdef _ILP32
4481 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: DDI_MODEL_ILP32"));
4482 
4483 		sge32			= &ksmp->sgl[0].sge32[0];
4484 		response_xferlen	= sge32[0].length;
4485 		request_xferlen		= sge32[1].length;
4486 		con_log(CL_ANN, (CE_NOTE, "issue_mfi_smp: "
4487 		    "response_xferlen = %x, request_xferlen = %x",
4488 		    response_xferlen, request_xferlen));
4489 
4490 		response_ubuf	= (void *)(ulong_t)sge32[0].phys_addr;
4491 		request_ubuf	= (void *)(ulong_t)sge32[1].phys_addr;
4492 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: "
4493 		    "response_ubuf = %p, request_ubuf = %p",
4494 		    response_ubuf, request_ubuf));
4495 #else
4496 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: DDI_MODEL_LP64"));
4497 
4498 		sge64			= &ksmp->sgl[0].sge64[0];
4499 		response_xferlen	= sge64[0].length;
4500 		request_xferlen		= sge64[1].length;
4501 
4502 		response_ubuf	= (void *)(ulong_t)sge64[0].phys_addr;
4503 		request_ubuf	= (void *)(ulong_t)sge64[1].phys_addr;
4504 #endif
4505 	}
4506 	if (request_xferlen) {
4507 		/* means IOCTL requires DMA */
4508 		/* allocate the data transfer buffer */
4509 		request_dma_obj.size = request_xferlen;
4510 		request_dma_obj.dma_attr = mrsas_generic_dma_attr;
4511 		request_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
4512 		request_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
4513 		request_dma_obj.dma_attr.dma_attr_sgllen = 1;
4514 		request_dma_obj.dma_attr.dma_attr_align = 1;
4515 
4516 		/* allocate kernel buffer for DMA */
4517 		if (mrsas_alloc_dma_obj(instance, &request_dma_obj,
4518 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
4519 			con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
4520 			    "could not allocate data transfer buffer."));
4521 			return (DDI_FAILURE);
4522 		}
4523 		(void) memset(request_dma_obj.buffer, 0, request_xferlen);
4524 
4525 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
4526 		for (i = 0; i < request_xferlen; i++) {
4527 			if (ddi_copyin((uint8_t *)request_ubuf + i,
4528 			    (uint8_t *)request_dma_obj.buffer + i,
4529 			    1, mode)) {
4530 				con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
4531 				    "copy from user space failed"));
4532 				return (DDI_FAILURE);
4533 			}
4534 		}
4535 	}
4536 
4537 	if (response_xferlen) {
4538 		/* means IOCTL requires DMA */
4539 		/* allocate the data transfer buffer */
4540 		response_dma_obj.size = response_xferlen;
4541 		response_dma_obj.dma_attr = mrsas_generic_dma_attr;
4542 		response_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
4543 		response_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
4544 		response_dma_obj.dma_attr.dma_attr_sgllen = 1;
4545 		response_dma_obj.dma_attr.dma_attr_align = 1;
4546 
4547 		/* allocate kernel buffer for DMA */
4548 		if (mrsas_alloc_dma_obj(instance, &response_dma_obj,
4549 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
4550 			con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
4551 			    "could not allocate data transfer buffer."));
4552 			return (DDI_FAILURE);
4553 		}
4554 		(void) memset(response_dma_obj.buffer, 0, response_xferlen);
4555 
4556 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
4557 		for (i = 0; i < response_xferlen; i++) {
4558 			if (ddi_copyin((uint8_t *)response_ubuf + i,
4559 			    (uint8_t *)response_dma_obj.buffer + i,
4560 			    1, mode)) {
4561 				con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
4562 				    "copy from user space failed"));
4563 				return (DDI_FAILURE);
4564 			}
4565 		}
4566 	}
4567 
4568 	ddi_put8(acc_handle, &smp->cmd, ksmp->cmd);
4569 	ddi_put8(acc_handle, &smp->cmd_status, 0);
4570 	ddi_put8(acc_handle, &smp->connection_status, 0);
4571 	ddi_put8(acc_handle, &smp->sge_count, ksmp->sge_count);
4572 	/* smp->context		= ksmp->context; */
4573 	ddi_put16(acc_handle, &smp->timeout, ksmp->timeout);
4574 	ddi_put32(acc_handle, &smp->data_xfer_len, ksmp->data_xfer_len);
4575 
4576 	bcopy((void *)&ksmp->sas_addr, (void *)&tmp_sas_addr,
4577 	    sizeof (uint64_t));
4578 	ddi_put64(acc_handle, &smp->sas_addr, tmp_sas_addr);
4579 
4580 	ddi_put16(acc_handle, &smp->flags, ksmp->flags & ~MFI_FRAME_SGL64);
4581 
4582 	model = ddi_model_convert_from(mode & FMODELS);
4583 	if (model == DDI_MODEL_ILP32) {
4584 		con_log(CL_ANN1, (CE_NOTE,
4585 		    "issue_mfi_smp: DDI_MODEL_ILP32"));
4586 
4587 		sge32 = &smp->sgl[0].sge32[0];
4588 		ddi_put32(acc_handle, &sge32[0].length, response_xferlen);
4589 		ddi_put32(acc_handle, &sge32[0].phys_addr,
4590 		    response_dma_obj.dma_cookie[0].dmac_address);
4591 		ddi_put32(acc_handle, &sge32[1].length, request_xferlen);
4592 		ddi_put32(acc_handle, &sge32[1].phys_addr,
4593 		    request_dma_obj.dma_cookie[0].dmac_address);
4594 	} else {
4595 #ifdef _ILP32
4596 		con_log(CL_ANN1, (CE_NOTE,
4597 		    "issue_mfi_smp: DDI_MODEL_ILP32"));
4598 		sge32 = &smp->sgl[0].sge32[0];
4599 		ddi_put32(acc_handle, &sge32[0].length, response_xferlen);
4600 		ddi_put32(acc_handle, &sge32[0].phys_addr,
4601 		    response_dma_obj.dma_cookie[0].dmac_address);
4602 		ddi_put32(acc_handle, &sge32[1].length, request_xferlen);
4603 		ddi_put32(acc_handle, &sge32[1].phys_addr,
4604 		    request_dma_obj.dma_cookie[0].dmac_address);
4605 #else
4606 		con_log(CL_ANN1, (CE_NOTE,
4607 		    "issue_mfi_smp: DDI_MODEL_LP64"));
4608 		sge64 = &smp->sgl[0].sge64[0];
4609 		ddi_put32(acc_handle, &sge64[0].length, response_xferlen);
4610 		ddi_put64(acc_handle, &sge64[0].phys_addr,
4611 		    response_dma_obj.dma_cookie[0].dmac_address);
4612 		ddi_put32(acc_handle, &sge64[1].length, request_xferlen);
4613 		ddi_put64(acc_handle, &sge64[1].phys_addr,
4614 		    request_dma_obj.dma_cookie[0].dmac_address);
4615 #endif
4616 	}
4617 	con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp : "
4618 	    "smp->response_xferlen = %d, smp->request_xferlen = %d "
4619 	    "smp->data_xfer_len = %d", ddi_get32(acc_handle, &sge32[0].length),
4620 	    ddi_get32(acc_handle, &sge32[1].length),
4621 	    ddi_get32(acc_handle, &smp->data_xfer_len)));
4622 
4623 	cmd->sync_cmd = MRSAS_TRUE;
4624 	cmd->frame_count = 1;
4625 
4626 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
4627 		con_log(CL_ANN, (CE_WARN,
4628 		    "issue_mfi_smp: fw_ioctl failed"));
4629 	} else {
4630 		con_log(CL_ANN1, (CE_NOTE,
4631 		    "issue_mfi_smp: copy to user space"));
4632 
4633 		if (request_xferlen) {
4634 			for (i = 0; i < request_xferlen; i++) {
4635 				if (ddi_copyout(
4636 				    (uint8_t *)request_dma_obj.buffer +
4637 				    i, (uint8_t *)request_ubuf + i,
4638 				    1, mode)) {
4639 					con_log(CL_ANN, (CE_WARN,
4640 					    "issue_mfi_smp : copy to user space"
4641 					    " failed"));
4642 					return (DDI_FAILURE);
4643 				}
4644 			}
4645 		}
4646 
4647 		if (response_xferlen) {
4648 			for (i = 0; i < response_xferlen; i++) {
4649 				if (ddi_copyout(
4650 				    (uint8_t *)response_dma_obj.buffer
4651 				    + i, (uint8_t *)response_ubuf
4652 				    + i, 1, mode)) {
4653 					con_log(CL_ANN, (CE_WARN,
4654 					    "issue_mfi_smp : copy to "
4655 					    "user space failed"));
4656 					return (DDI_FAILURE);
4657 				}
4658 			}
4659 		}
4660 	}
4661 
4662 	ksmp->cmd_status = ddi_get8(acc_handle, &smp->cmd_status);
4663 	con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: smp->cmd_status = %d",
4664 	    ddi_get8(acc_handle, &smp->cmd_status)));
4665 	DTRACE_PROBE2(issue_smp, uint8_t, ksmp->cmd, uint8_t, ksmp->cmd_status);
4666 
4667 	if (request_xferlen) {
4668 		/* free kernel buffer */
4669 		if (mrsas_free_dma_obj(instance, request_dma_obj) !=
4670 		    DDI_SUCCESS)
4671 			return (DDI_FAILURE);
4672 	}
4673 
4674 	if (response_xferlen) {
4675 		/* free kernel buffer */
4676 		if (mrsas_free_dma_obj(instance, response_dma_obj) !=
4677 		    DDI_SUCCESS)
4678 			return (DDI_FAILURE);
4679 	}
4680 
4681 	return (DDI_SUCCESS);
4682 }
4683 
4684 /*
4685  * issue_mfi_stp
4686  */
4687 static int
4688 issue_mfi_stp(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
4689     struct mrsas_cmd *cmd, int mode)
4690 {
4691 	void		*fis_ubuf;
4692 	void		*data_ubuf;
4693 	uint32_t	fis_xferlen = 0;
4694 	uint32_t	data_xferlen = 0;
4695 	uint_t		model;
4696 	dma_obj_t	fis_dma_obj;
4697 	dma_obj_t	data_dma_obj;
4698 	struct mrsas_stp_frame	*kstp;
4699 	struct mrsas_stp_frame	*stp;
4700 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
4701 	int i;
4702 
4703 	stp = &cmd->frame->stp;
4704 	kstp = (struct mrsas_stp_frame *)&ioctl->frame[0];
4705 
4706 	if (instance->adapterresetinprogress) {
4707 		con_log(CL_ANN1, (CE_NOTE, "Reset flag set, "
4708 		"returning mfi_pkt and setting TRAN_BUSY\n"));
4709 		return (DDI_FAILURE);
4710 	}
4711 	model = ddi_model_convert_from(mode & FMODELS);
4712 	if (model == DDI_MODEL_ILP32) {
4713 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_stp: DDI_MODEL_ILP32"));
4714 
4715 		fis_xferlen	= kstp->sgl.sge32[0].length;
4716 		data_xferlen	= kstp->sgl.sge32[1].length;
4717 
4718 		fis_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[0].phys_addr;
4719 		data_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[1].phys_addr;
4720 	}
4721 	else
4722 	{
4723 #ifdef _ILP32
4724 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_stp: DDI_MODEL_ILP32"));
4725 
4726 		fis_xferlen	= kstp->sgl.sge32[0].length;
4727 		data_xferlen	= kstp->sgl.sge32[1].length;
4728 
4729 		fis_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[0].phys_addr;
4730 		data_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[1].phys_addr;
4731 #else
4732 		con_log(CL_ANN1, (CE_NOTE, "issue_mfi_stp: DDI_MODEL_LP64"));
4733 
4734 		fis_xferlen	= kstp->sgl.sge64[0].length;
4735 		data_xferlen	= kstp->sgl.sge64[1].length;
4736 
4737 		fis_ubuf	= (void *)(ulong_t)kstp->sgl.sge64[0].phys_addr;
4738 		data_ubuf	= (void *)(ulong_t)kstp->sgl.sge64[1].phys_addr;
4739 #endif
4740 	}
4741 
4742 
4743 	if (fis_xferlen) {
4744 		con_log(CL_ANN, (CE_NOTE, "issue_mfi_stp: "
4745 		    "fis_ubuf = %p fis_xferlen = %x", fis_ubuf, fis_xferlen));
4746 
4747 		/* means IOCTL requires DMA */
4748 		/* allocate the data transfer buffer */
4749 		fis_dma_obj.size = fis_xferlen;
4750 		fis_dma_obj.dma_attr = mrsas_generic_dma_attr;
4751 		fis_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
4752 		fis_dma_obj.dma_attr.dma_attr_count_max	= 0xFFFFFFFFU;
4753 		fis_dma_obj.dma_attr.dma_attr_sgllen = 1;
4754 		fis_dma_obj.dma_attr.dma_attr_align = 1;
4755 
4756 		/* allocate kernel buffer for DMA */
4757 		if (mrsas_alloc_dma_obj(instance, &fis_dma_obj,
4758 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
4759 			con_log(CL_ANN, (CE_WARN, "issue_mfi_stp : "
4760 			    "could not allocate data transfer buffer."));
4761 			return (DDI_FAILURE);
4762 		}
4763 		(void) memset(fis_dma_obj.buffer, 0, fis_xferlen);
4764 
4765 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
4766 		for (i = 0; i < fis_xferlen; i++) {
4767 			if (ddi_copyin((uint8_t *)fis_ubuf + i,
4768 			    (uint8_t *)fis_dma_obj.buffer + i, 1, mode)) {
4769 				con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: "
4770 				    "copy from user space failed"));
4771 				return (DDI_FAILURE);
4772 			}
4773 		}
4774 	}
4775 
4776 	if (data_xferlen) {
4777 		con_log(CL_ANN, (CE_NOTE, "issue_mfi_stp: data_ubuf = %p "
4778 		    "data_xferlen = %x", data_ubuf, data_xferlen));
4779 
4780 		/* means IOCTL requires DMA */
4781 		/* allocate the data transfer buffer */
4782 		data_dma_obj.size = data_xferlen;
4783 		data_dma_obj.dma_attr = mrsas_generic_dma_attr;
4784 		data_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
4785 		data_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
4786 		data_dma_obj.dma_attr.dma_attr_sgllen = 1;
4787 		data_dma_obj.dma_attr.dma_attr_align = 1;
4788 
4789 /* allocate kernel buffer for DMA */
4790 		if (mrsas_alloc_dma_obj(instance, &data_dma_obj,
4791 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
4792 			con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: "
4793 			    "could not allocate data transfer buffer."));
4794 			return (DDI_FAILURE);
4795 		}
4796 		(void) memset(data_dma_obj.buffer, 0, data_xferlen);
4797 
4798 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
4799 		for (i = 0; i < data_xferlen; i++) {
4800 			if (ddi_copyin((uint8_t *)data_ubuf + i,
4801 			    (uint8_t *)data_dma_obj.buffer + i, 1, mode)) {
4802 				con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: "
4803 				    "copy from user space failed"));
4804 				return (DDI_FAILURE);
4805 			}
4806 		}
4807 	}
4808 
4809 	ddi_put8(acc_handle, &stp->cmd, kstp->cmd);
4810 	ddi_put8(acc_handle, &stp->cmd_status, 0);
4811 	ddi_put8(acc_handle, &stp->connection_status, 0);
4812 	ddi_put8(acc_handle, &stp->target_id, kstp->target_id);
4813 	ddi_put8(acc_handle, &stp->sge_count, kstp->sge_count);
4814 
4815 	ddi_put16(acc_handle, &stp->timeout, kstp->timeout);
4816 	ddi_put32(acc_handle, &stp->data_xfer_len, kstp->data_xfer_len);
4817 
4818 	ddi_rep_put8(acc_handle, (uint8_t *)kstp->fis, (uint8_t *)stp->fis, 10,
4819 	    DDI_DEV_AUTOINCR);
4820 
4821 	ddi_put16(acc_handle, &stp->flags, kstp->flags & ~MFI_FRAME_SGL64);
4822 	ddi_put32(acc_handle, &stp->stp_flags, kstp->stp_flags);
4823 	ddi_put32(acc_handle, &stp->sgl.sge32[0].length, fis_xferlen);
4824 	ddi_put32(acc_handle, &stp->sgl.sge32[0].phys_addr,
4825 	    fis_dma_obj.dma_cookie[0].dmac_address);
4826 	ddi_put32(acc_handle, &stp->sgl.sge32[1].length, data_xferlen);
4827 	ddi_put32(acc_handle, &stp->sgl.sge32[1].phys_addr,
4828 	    data_dma_obj.dma_cookie[0].dmac_address);
4829 
4830 	cmd->sync_cmd = MRSAS_TRUE;
4831 	cmd->frame_count = 1;
4832 
4833 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
4834 		con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: fw_ioctl failed"));
4835 	} else {
4836 
4837 		if (fis_xferlen) {
4838 			for (i = 0; i < fis_xferlen; i++) {
4839 				if (ddi_copyout(
4840 				    (uint8_t *)fis_dma_obj.buffer + i,
4841 				    (uint8_t *)fis_ubuf + i, 1, mode)) {
4842 					con_log(CL_ANN, (CE_WARN,
4843 					    "issue_mfi_stp : copy to "
4844 					    "user space failed"));
4845 					return (DDI_FAILURE);
4846 				}
4847 			}
4848 		}
4849 	}
4850 	if (data_xferlen) {
4851 		for (i = 0; i < data_xferlen; i++) {
4852 			if (ddi_copyout(
4853 			    (uint8_t *)data_dma_obj.buffer + i,
4854 			    (uint8_t *)data_ubuf + i, 1, mode)) {
4855 				con_log(CL_ANN, (CE_WARN,
4856 				    "issue_mfi_stp : copy to"
4857 				    " user space failed"));
4858 				return (DDI_FAILURE);
4859 			}
4860 		}
4861 	}
4862 
4863 	kstp->cmd_status = ddi_get8(acc_handle, &stp->cmd_status);
4864 	DTRACE_PROBE2(issue_stp, uint8_t, kstp->cmd, uint8_t, kstp->cmd_status);
4865 
4866 	if (fis_xferlen) {
4867 		/* free kernel buffer */
4868 		if (mrsas_free_dma_obj(instance, fis_dma_obj) != DDI_SUCCESS)
4869 			return (DDI_FAILURE);
4870 	}
4871 
4872 	if (data_xferlen) {
4873 		/* free kernel buffer */
4874 		if (mrsas_free_dma_obj(instance, data_dma_obj) != DDI_SUCCESS)
4875 			return (DDI_FAILURE);
4876 	}
4877 
4878 	return (DDI_SUCCESS);
4879 }
4880 
4881 /*
4882  * fill_up_drv_ver
4883  */
4884 static void
4885 fill_up_drv_ver(struct mrsas_drv_ver *dv)
4886 {
4887 	(void) memset(dv, 0, sizeof (struct mrsas_drv_ver));
4888 
4889 	(void) memcpy(dv->signature, "$LSI LOGIC$", strlen("$LSI LOGIC$"));
4890 	(void) memcpy(dv->os_name, "Solaris", strlen("Solaris"));
4891 	(void) memcpy(dv->drv_name, "mr_sas", strlen("mr_sas"));
4892 	(void) memcpy(dv->drv_ver, MRSAS_VERSION, strlen(MRSAS_VERSION));
4893 	(void) memcpy(dv->drv_rel_date, MRSAS_RELDATE,
4894 	    strlen(MRSAS_RELDATE));
4895 }
4896 
4897 /*
4898  * handle_drv_ioctl
4899  */
4900 static int
4901 handle_drv_ioctl(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
4902     int mode)
4903 {
4904 	int	i;
4905 	int	rval = DDI_SUCCESS;
4906 	int	*props = NULL;
4907 	void	*ubuf;
4908 
4909 	uint8_t		*pci_conf_buf;
4910 	uint32_t	xferlen;
4911 	uint32_t	num_props;
4912 	uint_t		model;
4913 	struct mrsas_dcmd_frame	*kdcmd;
4914 	struct mrsas_drv_ver	dv;
4915 	struct mrsas_pci_information pi;
4916 
4917 	kdcmd = (struct mrsas_dcmd_frame *)&ioctl->frame[0];
4918 
4919 	model = ddi_model_convert_from(mode & FMODELS);
4920 	if (model == DDI_MODEL_ILP32) {
4921 		con_log(CL_ANN1, (CE_NOTE,
4922 		    "handle_drv_ioctl: DDI_MODEL_ILP32"));
4923 
4924 		xferlen	= kdcmd->sgl.sge32[0].length;
4925 
4926 		ubuf = (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
4927 	} else {
4928 #ifdef _ILP32
4929 		con_log(CL_ANN1, (CE_NOTE,
4930 		    "handle_drv_ioctl: DDI_MODEL_ILP32"));
4931 		xferlen	= kdcmd->sgl.sge32[0].length;
4932 		ubuf = (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
4933 #else
4934 		con_log(CL_ANN1, (CE_NOTE,
4935 		    "handle_drv_ioctl: DDI_MODEL_LP64"));
4936 		xferlen	= kdcmd->sgl.sge64[0].length;
4937 		ubuf = (void *)(ulong_t)kdcmd->sgl.sge64[0].phys_addr;
4938 #endif
4939 	}
4940 	con_log(CL_ANN1, (CE_NOTE, "handle_drv_ioctl: "
4941 	    "dataBuf=%p size=%d bytes", ubuf, xferlen));
4942 
4943 	switch (kdcmd->opcode) {
4944 	case MRSAS_DRIVER_IOCTL_DRIVER_VERSION:
4945 		con_log(CL_ANN1, (CE_NOTE, "handle_drv_ioctl: "
4946 		    "MRSAS_DRIVER_IOCTL_DRIVER_VERSION"));
4947 
4948 		fill_up_drv_ver(&dv);
4949 
4950 		if (ddi_copyout(&dv, ubuf, xferlen, mode)) {
4951 			con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
4952 			    "MRSAS_DRIVER_IOCTL_DRIVER_VERSION : "
4953 			    "copy to user space failed"));
4954 			kdcmd->cmd_status = 1;
4955 			rval = 1;
4956 		} else {
4957 			kdcmd->cmd_status = 0;
4958 		}
4959 		break;
4960 	case MRSAS_DRIVER_IOCTL_PCI_INFORMATION:
4961 		con_log(CL_ANN1, (CE_NOTE, "handle_drv_ioctl: "
4962 		    "MRSAS_DRIVER_IOCTL_PCI_INFORMAITON"));
4963 
4964 		if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, instance->dip,
4965 		    0, "reg", &props, &num_props)) {
4966 			con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
4967 			    "MRSAS_DRIVER_IOCTL_PCI_INFORMATION : "
4968 			    "ddi_prop_look_int_array failed"));
4969 			rval = DDI_FAILURE;
4970 		} else {
4971 
4972 			pi.busNumber = (props[0] >> 16) & 0xFF;
4973 			pi.deviceNumber = (props[0] >> 11) & 0x1f;
4974 			pi.functionNumber = (props[0] >> 8) & 0x7;
4975 			ddi_prop_free((void *)props);
4976 		}
4977 
4978 		pci_conf_buf = (uint8_t *)&pi.pciHeaderInfo;
4979 
4980 		for (i = 0; i < (sizeof (struct mrsas_pci_information) -
4981 		    offsetof(struct mrsas_pci_information, pciHeaderInfo));
4982 		    i++) {
4983 			pci_conf_buf[i] =
4984 			    pci_config_get8(instance->pci_handle, i);
4985 		}
4986 
4987 		if (ddi_copyout(&pi, ubuf, xferlen, mode)) {
4988 			con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
4989 			    "MRSAS_DRIVER_IOCTL_PCI_INFORMATION : "
4990 			    "copy to user space failed"));
4991 			kdcmd->cmd_status = 1;
4992 			rval = 1;
4993 		} else {
4994 			kdcmd->cmd_status = 0;
4995 		}
4996 		break;
4997 	default:
4998 		con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
4999 		    "invalid driver specific IOCTL opcode = 0x%x",
5000 		    kdcmd->opcode));
5001 		kdcmd->cmd_status = 1;
5002 		rval = DDI_FAILURE;
5003 		break;
5004 	}
5005 
5006 	return (rval);
5007 }
5008 
5009 /*
5010  * handle_mfi_ioctl
5011  */
5012 static int
5013 handle_mfi_ioctl(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
5014     int mode)
5015 {
5016 	int	rval = DDI_SUCCESS;
5017 
5018 	struct mrsas_header	*hdr;
5019 	struct mrsas_cmd	*cmd;
5020 
5021 	cmd = get_mfi_pkt(instance);
5022 
5023 	if (!cmd) {
5024 		con_log(CL_ANN, (CE_WARN, "mr_sas: "
5025 		    "failed to get a cmd packet"));
5026 		DTRACE_PROBE2(mfi_ioctl_err, uint16_t,
5027 		    instance->fw_outstanding, uint16_t, instance->max_fw_cmds);
5028 		return (DDI_FAILURE);
5029 	}
5030 	cmd->retry_count_for_ocr = 0;
5031 
5032 	/* Clear the frame buffer and assign back the context id */
5033 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
5034 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
5035 	    cmd->index);
5036 
5037 	hdr = (struct mrsas_header *)&ioctl->frame[0];
5038 
5039 	switch (ddi_get8(cmd->frame_dma_obj.acc_handle, &hdr->cmd)) {
5040 	case MFI_CMD_OP_DCMD:
5041 		rval = issue_mfi_dcmd(instance, ioctl, cmd, mode);
5042 		break;
5043 	case MFI_CMD_OP_SMP:
5044 		rval = issue_mfi_smp(instance, ioctl, cmd, mode);
5045 		break;
5046 	case MFI_CMD_OP_STP:
5047 		rval = issue_mfi_stp(instance, ioctl, cmd, mode);
5048 		break;
5049 	case MFI_CMD_OP_LD_SCSI:
5050 	case MFI_CMD_OP_PD_SCSI:
5051 		rval = issue_mfi_pthru(instance, ioctl, cmd, mode);
5052 		break;
5053 	default:
5054 		con_log(CL_ANN, (CE_WARN, "handle_mfi_ioctl: "
5055 		    "invalid mfi ioctl hdr->cmd = %d", hdr->cmd));
5056 		rval = DDI_FAILURE;
5057 		break;
5058 	}
5059 
5060 	if (mrsas_common_check(instance, cmd) != DDI_SUCCESS)
5061 		rval = DDI_FAILURE;
5062 
5063 	return_mfi_pkt(instance, cmd);
5064 
5065 	return (rval);
5066 }
5067 
5068 /*
5069  * AEN
5070  */
5071 static int
5072 handle_mfi_aen(struct mrsas_instance *instance, struct mrsas_aen *aen)
5073 {
5074 	int	rval = 0;
5075 
5076 	rval = register_mfi_aen(instance, instance->aen_seq_num,
5077 	    aen->class_locale_word);
5078 
5079 	aen->cmd_status = (uint8_t)rval;
5080 
5081 	return (rval);
5082 }
5083 
5084 static int
5085 register_mfi_aen(struct mrsas_instance *instance, uint32_t seq_num,
5086     uint32_t class_locale_word)
5087 {
5088 	int	ret_val;
5089 
5090 	struct mrsas_cmd	*cmd, *aen_cmd;
5091 	struct mrsas_dcmd_frame	*dcmd;
5092 	union mrsas_evt_class_locale	curr_aen;
5093 	union mrsas_evt_class_locale	prev_aen;
5094 
5095 	/*
5096 	 * If there an AEN pending already (aen_cmd), check if the
5097 	 * class_locale of that pending AEN is inclusive of the new
5098 	 * AEN request we currently have. If it is, then we don't have
5099 	 * to do anything. In other words, whichever events the current
5100 	 * AEN request is subscribing to, have already been subscribed
5101 	 * to.
5102 	 *
5103 	 * If the old_cmd is _not_ inclusive, then we have to abort
5104 	 * that command, form a class_locale that is superset of both
5105 	 * old and current and re-issue to the FW
5106 	 */
5107 
5108 	curr_aen.word = LE_32(class_locale_word);
5109 	curr_aen.members.locale = LE_16(curr_aen.members.locale);
5110 	aen_cmd = instance->aen_cmd;
5111 	if (aen_cmd) {
5112 		prev_aen.word = ddi_get32(aen_cmd->frame_dma_obj.acc_handle,
5113 		    &aen_cmd->frame->dcmd.mbox.w[1]);
5114 		prev_aen.word = LE_32(prev_aen.word);
5115 		prev_aen.members.locale = LE_16(prev_aen.members.locale);
5116 		/*
5117 		 * A class whose enum value is smaller is inclusive of all
5118 		 * higher values. If a PROGRESS (= -1) was previously
5119 		 * registered, then a new registration requests for higher
5120 		 * classes need not be sent to FW. They are automatically
5121 		 * included.
5122 		 *
5123 		 * Locale numbers don't have such hierarchy. They are bitmap
5124 		 * values
5125 		 */
5126 		if ((prev_aen.members.class <= curr_aen.members.class) &&
5127 		    !((prev_aen.members.locale & curr_aen.members.locale) ^
5128 		    curr_aen.members.locale)) {
5129 			/*
5130 			 * Previously issued event registration includes
5131 			 * current request. Nothing to do.
5132 			 */
5133 
5134 			return (0);
5135 		} else {
5136 			curr_aen.members.locale |= prev_aen.members.locale;
5137 
5138 			if (prev_aen.members.class < curr_aen.members.class)
5139 				curr_aen.members.class = prev_aen.members.class;
5140 
5141 			ret_val = abort_aen_cmd(instance, aen_cmd);
5142 
5143 			if (ret_val) {
5144 				con_log(CL_ANN, (CE_WARN, "register_mfi_aen: "
5145 				    "failed to abort prevous AEN command"));
5146 
5147 				return (ret_val);
5148 			}
5149 		}
5150 	} else {
5151 		curr_aen.word = LE_32(class_locale_word);
5152 		curr_aen.members.locale = LE_16(curr_aen.members.locale);
5153 	}
5154 
5155 	cmd = get_mfi_pkt(instance);
5156 
5157 	if (!cmd) {
5158 		DTRACE_PROBE2(mfi_aen_err, uint16_t, instance->fw_outstanding,
5159 		    uint16_t, instance->max_fw_cmds);
5160 		return (ENOMEM);
5161 	}
5162 	cmd->retry_count_for_ocr = 0;
5163 	/* Clear the frame buffer and assign back the context id */
5164 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
5165 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
5166 	    cmd->index);
5167 
5168 	dcmd = &cmd->frame->dcmd;
5169 
5170 	/* for(i = 0; i < DCMD_MBOX_SZ; i++) dcmd->mbox.b[i] = 0; */
5171 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
5172 
5173 	(void) memset(instance->mfi_evt_detail_obj.buffer, 0,
5174 	    sizeof (struct mrsas_evt_detail));
5175 
5176 	/* Prepare DCMD for aen registration */
5177 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
5178 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status, 0x0);
5179 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 1);
5180 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
5181 	    MFI_FRAME_DIR_READ);
5182 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
5183 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len,
5184 	    sizeof (struct mrsas_evt_detail));
5185 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
5186 	    MR_DCMD_CTRL_EVENT_WAIT);
5187 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->mbox.w[0], seq_num);
5188 	curr_aen.members.locale = LE_16(curr_aen.members.locale);
5189 	curr_aen.word = LE_32(curr_aen.word);
5190 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->mbox.w[1],
5191 	    curr_aen.word);
5192 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].phys_addr,
5193 	    instance->mfi_evt_detail_obj.dma_cookie[0].dmac_address);
5194 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].length,
5195 	    sizeof (struct mrsas_evt_detail));
5196 
5197 	instance->aen_seq_num = seq_num;
5198 
5199 
5200 	/*
5201 	 * Store reference to the cmd used to register for AEN. When an
5202 	 * application wants us to register for AEN, we have to abort this
5203 	 * cmd and re-register with a new EVENT LOCALE supplied by that app
5204 	 */
5205 	instance->aen_cmd = cmd;
5206 
5207 	cmd->frame_count = 1;
5208 
5209 	/* Issue the aen registration frame */
5210 	/* atomic_add_16 (&instance->fw_outstanding, 1); */
5211 	instance->func_ptr->issue_cmd(cmd, instance);
5212 
5213 	return (0);
5214 }
5215 
5216 static void
5217 display_scsi_inquiry(caddr_t scsi_inq)
5218 {
5219 #define	MAX_SCSI_DEVICE_CODE	14
5220 	int		i;
5221 	char		inquiry_buf[256] = {0};
5222 	int		len;
5223 	const char	*const scsi_device_types[] = {
5224 		"Direct-Access    ",
5225 		"Sequential-Access",
5226 		"Printer          ",
5227 		"Processor        ",
5228 		"WORM             ",
5229 		"CD-ROM           ",
5230 		"Scanner          ",
5231 		"Optical Device   ",
5232 		"Medium Changer   ",
5233 		"Communications   ",
5234 		"Unknown          ",
5235 		"Unknown          ",
5236 		"Unknown          ",
5237 		"Enclosure        ",
5238 	};
5239 
5240 	len = 0;
5241 
5242 	len += snprintf(inquiry_buf + len, 265 - len, "  Vendor: ");
5243 	for (i = 8; i < 16; i++) {
5244 		len += snprintf(inquiry_buf + len, 265 - len, "%c",
5245 		    scsi_inq[i]);
5246 	}
5247 
5248 	len += snprintf(inquiry_buf + len, 265 - len, "  Model: ");
5249 
5250 	for (i = 16; i < 32; i++) {
5251 		len += snprintf(inquiry_buf + len, 265 - len, "%c",
5252 		    scsi_inq[i]);
5253 	}
5254 
5255 	len += snprintf(inquiry_buf + len, 265 - len, "  Rev: ");
5256 
5257 	for (i = 32; i < 36; i++) {
5258 		len += snprintf(inquiry_buf + len, 265 - len, "%c",
5259 		    scsi_inq[i]);
5260 	}
5261 
5262 	len += snprintf(inquiry_buf + len, 265 - len, "\n");
5263 
5264 
5265 	i = scsi_inq[0] & 0x1f;
5266 
5267 
5268 	len += snprintf(inquiry_buf + len, 265 - len, "  Type:   %s ",
5269 	    i < MAX_SCSI_DEVICE_CODE ? scsi_device_types[i] :
5270 	    "Unknown          ");
5271 
5272 
5273 	len += snprintf(inquiry_buf + len, 265 - len,
5274 	    "                 ANSI SCSI revision: %02x", scsi_inq[2] & 0x07);
5275 
5276 	if ((scsi_inq[2] & 0x07) == 1 && (scsi_inq[3] & 0x0f) == 1) {
5277 		len += snprintf(inquiry_buf + len, 265 - len, " CCS\n");
5278 	} else {
5279 		len += snprintf(inquiry_buf + len, 265 - len, "\n");
5280 	}
5281 
5282 	con_log(CL_ANN1, (CE_CONT, inquiry_buf));
5283 }
5284 
5285 static void
5286 io_timeout_checker(void *arg)
5287 {
5288 	struct scsi_pkt *pkt;
5289 	struct mrsas_instance *instance = arg;
5290 	struct mrsas_cmd	*cmd = NULL;
5291 	struct mrsas_header	*hdr;
5292 	int time = 0;
5293 	int counter = 0;
5294 	struct mlist_head	*pos, *next;
5295 	mlist_t			process_list;
5296 
5297 	if (instance->adapterresetinprogress == 1) {
5298 		con_log(CL_ANN1, (CE_NOTE, "io_timeout_checker"
5299 		    " reset in progress"));
5300 		instance->timeout_id = timeout(io_timeout_checker,
5301 		    (void *) instance, drv_usectohz(MRSAS_1_SECOND));
5302 		return;
5303 	}
5304 
5305 	/* See if this check needs to be in the beginning or last in ISR */
5306 	if (mrsas_initiate_ocr_if_fw_is_faulty(instance) ==  1) {
5307 		con_log(CL_ANN1, (CE_NOTE,
5308 		    "Fw Fault state Handling in io_timeout_checker"));
5309 		if (instance->adapterresetinprogress == 0) {
5310 			(void) mrsas_reset_ppc(instance);
5311 		}
5312 		instance->timeout_id = timeout(io_timeout_checker,
5313 		    (void *) instance, drv_usectohz(MRSAS_1_SECOND));
5314 		return;
5315 	}
5316 
5317 	INIT_LIST_HEAD(&process_list);
5318 
5319 	mutex_enter(&instance->cmd_pend_mtx);
5320 	mlist_for_each_safe(pos, next, &instance->cmd_pend_list) {
5321 		cmd = mlist_entry(pos, struct mrsas_cmd, list);
5322 
5323 		if (cmd == NULL) {
5324 			continue;
5325 		}
5326 
5327 		if (cmd->sync_cmd == MRSAS_TRUE) {
5328 			hdr = (struct mrsas_header *)&cmd->frame->hdr;
5329 			if (hdr == NULL) {
5330 				continue;
5331 			}
5332 			time = --cmd->drv_pkt_time;
5333 		} else {
5334 			pkt = cmd->pkt;
5335 			if (pkt == NULL) {
5336 				continue;
5337 			}
5338 			time = --cmd->drv_pkt_time;
5339 		}
5340 		if (time <= 0) {
5341 			con_log(CL_ANN1, (CE_NOTE, "%llx: "
5342 			    "io_timeout_checker: TIMING OUT: pkt "
5343 			    ": %p, cmd %p", gethrtime(), (void *)pkt,
5344 			    (void *)cmd));
5345 			counter++;
5346 			break;
5347 		}
5348 	}
5349 	mutex_exit(&instance->cmd_pend_mtx);
5350 
5351 	if (counter) {
5352 		con_log(CL_ANN1, (CE_NOTE,
5353 		    "io_timeout_checker "
5354 		    "cmd->retrycount_for_ocr %d, "
5355 		    "cmd index %d , cmd address %p ",
5356 		    cmd->retry_count_for_ocr+1, cmd->index, (void *)cmd));
5357 
5358 		if (instance->disable_online_ctrl_reset == 1) {
5359 			con_log(CL_ANN1, (CE_NOTE, "mrsas: "
5360 			    "OCR is not supported by the Firmware "
5361 			    "Failing all the queued packets \n"));
5362 
5363 			(void) mrsas_kill_adapter(instance);
5364 			return;
5365 		} else {
5366 			if (cmd->retry_count_for_ocr <=  IO_RETRY_COUNT) {
5367 				if (instance->adapterresetinprogress == 0) {
5368 				con_log(CL_ANN1, (CE_NOTE, "mrsas: "
5369 				    "OCR is supported by FW "
5370 				    "triggering  mrsas_reset_ppc"));
5371 				(void) mrsas_reset_ppc(instance);
5372 				}
5373 			} else {
5374 				con_log(CL_ANN1, (CE_NOTE,
5375 				    "io_timeout_checker:"
5376 				    " cmdindex: %d,cmd address: %p "
5377 				    "timed out even after 3 resets: "
5378 				    "so kill adapter", cmd->index,
5379 				    (void *)cmd));
5380 				(void) mrsas_kill_adapter(instance);
5381 				return;
5382 			}
5383 		}
5384 	}
5385 
5386 
5387 	con_log(CL_ANN1, (CE_NOTE, "mrsas: "
5388 	    "schedule next timeout check: "
5389 	    "do timeout \n"));
5390 	instance->timeout_id =
5391 	    timeout(io_timeout_checker, (void *)instance,
5392 	    drv_usectohz(MRSAS_1_SECOND));
5393 }
5394 static int
5395 read_fw_status_reg_ppc(struct mrsas_instance *instance)
5396 {
5397 	return ((int)RD_OB_SCRATCH_PAD_0(instance));
5398 }
5399 
5400 static void
5401 issue_cmd_ppc(struct mrsas_cmd *cmd, struct mrsas_instance *instance)
5402 {
5403 	struct scsi_pkt *pkt;
5404 	atomic_add_16(&instance->fw_outstanding, 1);
5405 
5406 	pkt = cmd->pkt;
5407 	if (pkt) {
5408 		con_log(CL_ANN1, (CE_CONT, "%llx : issue_cmd_ppc:"
5409 		    "ISSUED CMD TO FW : called : cmd:"
5410 		    ": %p instance : %p pkt : %p pkt_time : %x\n",
5411 		    gethrtime(), (void *)cmd, (void *)instance,
5412 		    (void *)pkt, cmd->drv_pkt_time));
5413 		if (instance->adapterresetinprogress) {
5414 			cmd->drv_pkt_time = (uint16_t)debug_timeout_g;
5415 			con_log(CL_ANN1, (CE_NOTE, "Reset the scsi_pkt timer"));
5416 		} else {
5417 			push_pending_mfi_pkt(instance, cmd);
5418 		}
5419 
5420 	} else {
5421 		con_log(CL_ANN1, (CE_CONT, "%llx : issue_cmd_ppc:"
5422 		    "ISSUED CMD TO FW : called : cmd : %p, instance: %p"
5423 		    "(NO PKT)\n", gethrtime(), (void *)cmd, (void *)instance));
5424 	}
5425 	/* Issue the command to the FW */
5426 	WR_IB_QPORT((cmd->frame_phys_addr) |
5427 	    (((cmd->frame_count - 1) << 1) | 1), instance);
5428 }
5429 
5430 /*
5431  * issue_cmd_in_sync_mode
5432  */
5433 static int
5434 issue_cmd_in_sync_mode_ppc(struct mrsas_instance *instance,
5435 struct mrsas_cmd *cmd)
5436 {
5437 	int	i;
5438 	uint32_t	msecs = MFI_POLL_TIMEOUT_SECS * (10 * MILLISEC);
5439 	struct mrsas_header *hdr = &cmd->frame->hdr;
5440 
5441 	con_log(CL_ANN1, (CE_NOTE, "issue_cmd_in_sync_mode_ppc: called"));
5442 
5443 	if (instance->adapterresetinprogress) {
5444 		cmd->drv_pkt_time = ddi_get16(
5445 		    cmd->frame_dma_obj.acc_handle, &hdr->timeout);
5446 		if (cmd->drv_pkt_time < debug_timeout_g)
5447 			cmd->drv_pkt_time = (uint16_t)debug_timeout_g;
5448 		con_log(CL_ANN1, (CE_NOTE, "sync_mode_ppc: "
5449 		    "issue and return in reset case\n"));
5450 		WR_IB_QPORT((cmd->frame_phys_addr) |
5451 		    (((cmd->frame_count - 1) << 1) | 1), instance);
5452 		return (DDI_SUCCESS);
5453 	} else {
5454 		con_log(CL_ANN1, (CE_NOTE, "sync_mode_ppc: pushing the pkt\n"));
5455 		push_pending_mfi_pkt(instance, cmd);
5456 	}
5457 
5458 	cmd->cmd_status	= ENODATA;
5459 
5460 	WR_IB_QPORT((cmd->frame_phys_addr) |
5461 	    (((cmd->frame_count - 1) << 1) | 1), instance);
5462 
5463 	mutex_enter(&instance->int_cmd_mtx);
5464 
5465 	for (i = 0; i < msecs && (cmd->cmd_status == ENODATA); i++) {
5466 		cv_wait(&instance->int_cmd_cv, &instance->int_cmd_mtx);
5467 	}
5468 
5469 	mutex_exit(&instance->int_cmd_mtx);
5470 
5471 	con_log(CL_ANN1, (CE_NOTE, "issue_cmd_in_sync_mode_ppc: done"));
5472 
5473 	if (i < (msecs -1)) {
5474 		return (DDI_SUCCESS);
5475 	} else {
5476 		return (DDI_FAILURE);
5477 	}
5478 }
5479 
5480 /*
5481  * issue_cmd_in_poll_mode
5482  */
5483 static int
5484 issue_cmd_in_poll_mode_ppc(struct mrsas_instance *instance,
5485     struct mrsas_cmd *cmd)
5486 {
5487 	int		i;
5488 	uint16_t	flags;
5489 	uint32_t	msecs = MFI_POLL_TIMEOUT_SECS * MILLISEC;
5490 	struct mrsas_header *frame_hdr;
5491 
5492 	con_log(CL_ANN1, (CE_NOTE, "issue_cmd_in_poll_mode_ppc: called"));
5493 
5494 	frame_hdr = (struct mrsas_header *)cmd->frame;
5495 	ddi_put8(cmd->frame_dma_obj.acc_handle, &frame_hdr->cmd_status,
5496 	    MFI_CMD_STATUS_POLL_MODE);
5497 	flags = ddi_get16(cmd->frame_dma_obj.acc_handle, &frame_hdr->flags);
5498 	flags 	|= MFI_FRAME_DONT_POST_IN_REPLY_QUEUE;
5499 
5500 	ddi_put16(cmd->frame_dma_obj.acc_handle, &frame_hdr->flags, flags);
5501 
5502 	/* issue the frame using inbound queue port */
5503 	WR_IB_QPORT((cmd->frame_phys_addr) |
5504 	    (((cmd->frame_count - 1) << 1) | 1), instance);
5505 
5506 	/* wait for cmd_status to change from 0xFF */
5507 	for (i = 0; i < msecs && (
5508 	    ddi_get8(cmd->frame_dma_obj.acc_handle, &frame_hdr->cmd_status)
5509 	    == MFI_CMD_STATUS_POLL_MODE); i++) {
5510 		drv_usecwait(MILLISEC); /* wait for 1000 usecs */
5511 	}
5512 
5513 	if (ddi_get8(cmd->frame_dma_obj.acc_handle, &frame_hdr->cmd_status)
5514 	    == MFI_CMD_STATUS_POLL_MODE) {
5515 		con_log(CL_ANN1, (CE_NOTE, "issue_cmd_in_poll_mode: "
5516 		    "cmd polling timed out"));
5517 		return (DDI_FAILURE);
5518 	}
5519 
5520 	return (DDI_SUCCESS);
5521 }
5522 
5523 static void
5524 enable_intr_ppc(struct mrsas_instance *instance)
5525 {
5526 	uint32_t	mask;
5527 
5528 	con_log(CL_ANN1, (CE_NOTE, "enable_intr_ppc: called"));
5529 
5530 	/* WR_OB_DOORBELL_CLEAR(0xFFFFFFFF, instance); */
5531 	WR_OB_DOORBELL_CLEAR(OB_DOORBELL_CLEAR_MASK, instance);
5532 
5533 	/* WR_OB_INTR_MASK(~0x80000000, instance); */
5534 	WR_OB_INTR_MASK(~(MFI_REPLY_2108_MESSAGE_INTR_MASK), instance);
5535 
5536 	/* dummy read to force PCI flush */
5537 	mask = RD_OB_INTR_MASK(instance);
5538 
5539 	con_log(CL_ANN1, (CE_NOTE, "enable_intr_ppc: "
5540 	    "outbound_intr_mask = 0x%x", mask));
5541 }
5542 
5543 static void
5544 disable_intr_ppc(struct mrsas_instance *instance)
5545 {
5546 	uint32_t	mask;
5547 
5548 	con_log(CL_ANN1, (CE_NOTE, "disable_intr_ppc: called"));
5549 
5550 	con_log(CL_ANN1, (CE_NOTE, "disable_intr_ppc: before : "
5551 	    "outbound_intr_mask = 0x%x", RD_OB_INTR_MASK(instance)));
5552 
5553 	/* WR_OB_INTR_MASK(0xFFFFFFFF, instance); */
5554 	WR_OB_INTR_MASK(OB_INTR_MASK, instance);
5555 
5556 	con_log(CL_ANN1, (CE_NOTE, "disable_intr_ppc: after : "
5557 	    "outbound_intr_mask = 0x%x", RD_OB_INTR_MASK(instance)));
5558 
5559 	/* dummy read to force PCI flush */
5560 	mask = RD_OB_INTR_MASK(instance);
5561 #ifdef lint
5562 	mask = mask;
5563 #endif
5564 }
5565 
5566 static int
5567 intr_ack_ppc(struct mrsas_instance *instance)
5568 {
5569 	uint32_t	status;
5570 	int ret = DDI_INTR_CLAIMED;
5571 
5572 	con_log(CL_ANN1, (CE_NOTE, "intr_ack_ppc: called"));
5573 
5574 	/* check if it is our interrupt */
5575 	status = RD_OB_INTR_STATUS(instance);
5576 
5577 	con_log(CL_ANN1, (CE_NOTE, "intr_ack_ppc: status = 0x%x", status));
5578 
5579 	if (!(status & MFI_REPLY_2108_MESSAGE_INTR)) {
5580 		ret = DDI_INTR_UNCLAIMED;
5581 	}
5582 
5583 	if (mrsas_check_acc_handle(instance->regmap_handle) != DDI_SUCCESS) {
5584 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
5585 		ret = DDI_INTR_UNCLAIMED;
5586 	}
5587 
5588 	if (ret == DDI_INTR_UNCLAIMED) {
5589 		return (ret);
5590 	}
5591 	/* clear the interrupt by writing back the same value */
5592 	WR_OB_DOORBELL_CLEAR(status, instance);
5593 
5594 	/* dummy READ */
5595 	status = RD_OB_INTR_STATUS(instance);
5596 
5597 	con_log(CL_ANN1, (CE_NOTE, "intr_ack_ppc: interrupt cleared"));
5598 
5599 	return (ret);
5600 }
5601 
5602 /*
5603  * Marks HBA as bad. This will be called either when an
5604  * IO packet times out even after 3 FW resets
5605  * or FW is found to be fault even after 3 continuous resets.
5606  */
5607 
5608 static int
5609 mrsas_kill_adapter(struct mrsas_instance *instance)
5610 {
5611 		if (instance->deadadapter == 1)
5612 			return (DDI_FAILURE);
5613 
5614 		con_log(CL_ANN1, (CE_NOTE, "mrsas_kill_adapter: "
5615 		    "Writing to doorbell with MFI_STOP_ADP "));
5616 		mutex_enter(&instance->ocr_flags_mtx);
5617 		instance->deadadapter = 1;
5618 		mutex_exit(&instance->ocr_flags_mtx);
5619 		instance->func_ptr->disable_intr(instance);
5620 		WR_IB_DOORBELL(MFI_STOP_ADP, instance);
5621 		(void) mrsas_complete_pending_cmds(instance);
5622 		return (DDI_SUCCESS);
5623 }
5624 
5625 
5626 static int
5627 mrsas_reset_ppc(struct mrsas_instance *instance)
5628 {
5629 	uint32_t status;
5630 	uint32_t retry = 0;
5631 	uint32_t cur_abs_reg_val;
5632 	uint32_t fw_state;
5633 
5634 	if (instance->deadadapter == 1) {
5635 		con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
5636 		    "no more resets as HBA has been marked dead "));
5637 		return (DDI_FAILURE);
5638 	}
5639 	mutex_enter(&instance->ocr_flags_mtx);
5640 	instance->adapterresetinprogress = 1;
5641 	mutex_exit(&instance->ocr_flags_mtx);
5642 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: adpterresetinprogress "
5643 	    "flag set, time %llx", gethrtime()));
5644 	instance->func_ptr->disable_intr(instance);
5645 retry_reset:
5646 	WR_IB_WRITE_SEQ(0, instance);
5647 	WR_IB_WRITE_SEQ(4, instance);
5648 	WR_IB_WRITE_SEQ(0xb, instance);
5649 	WR_IB_WRITE_SEQ(2, instance);
5650 	WR_IB_WRITE_SEQ(7, instance);
5651 	WR_IB_WRITE_SEQ(0xd, instance);
5652 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: magic number written "
5653 	    "to write sequence register\n"));
5654 	delay(100 * drv_usectohz(MILLISEC));
5655 	status = RD_OB_DRWE(instance);
5656 
5657 	while (!(status & DIAG_WRITE_ENABLE)) {
5658 		delay(100 * drv_usectohz(MILLISEC));
5659 		status = RD_OB_DRWE(instance);
5660 		if (retry++ == 100) {
5661 			con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: DRWE bit "
5662 			    "check retry count %d\n", retry));
5663 			return (DDI_FAILURE);
5664 		}
5665 	}
5666 	WR_IB_DRWE(status | DIAG_RESET_ADAPTER, instance);
5667 	delay(100 * drv_usectohz(MILLISEC));
5668 	status = RD_OB_DRWE(instance);
5669 	while (status & DIAG_RESET_ADAPTER) {
5670 		delay(100 * drv_usectohz(MILLISEC));
5671 		status = RD_OB_DRWE(instance);
5672 		if (retry++ == 100) {
5673 			(void) mrsas_kill_adapter(instance);
5674 			return (DDI_FAILURE);
5675 		}
5676 	}
5677 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: Adapter reset complete"));
5678 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
5679 	    "Calling mfi_state_transition_to_ready"));
5680 
5681 	/* Mark HBA as bad, if FW is fault after 3 continuous resets */
5682 	if (mfi_state_transition_to_ready(instance) ||
5683 	    debug_fw_faults_after_ocr_g == 1) {
5684 		cur_abs_reg_val =
5685 		    instance->func_ptr->read_fw_status_reg(instance);
5686 		fw_state	= cur_abs_reg_val & MFI_STATE_MASK;
5687 
5688 #ifdef OCRDEBUG
5689 		con_log(CL_ANN1, (CE_NOTE,
5690 		    "mrsas_reset_ppc :before fake: FW is not ready "
5691 		    "FW state = 0x%x", fw_state));
5692 		if (debug_fw_faults_after_ocr_g == 1)
5693 			fw_state = MFI_STATE_FAULT;
5694 #endif
5695 
5696 		con_log(CL_ANN1, (CE_NOTE,  "mrsas_reset_ppc : FW is not ready "
5697 		    "FW state = 0x%x", fw_state));
5698 
5699 		if (fw_state == MFI_STATE_FAULT) {
5700 			/* increment the count */
5701 			instance->fw_fault_count_after_ocr++;
5702 			if (instance->fw_fault_count_after_ocr
5703 			    < MAX_FW_RESET_COUNT) {
5704 				con_log(CL_ANN1, (CE_WARN, "mrsas_reset_ppc: "
5705 				    "FW is in fault after OCR count %d ",
5706 				    instance->fw_fault_count_after_ocr));
5707 				goto retry_reset;
5708 
5709 			} else {
5710 				con_log(CL_ANN1, (CE_WARN, "mrsas_reset_ppc: "
5711 				    "Max Reset Count exceeded "
5712 				    "Mark HBA as bad"));
5713 				(void) mrsas_kill_adapter(instance);
5714 				return (DDI_FAILURE);
5715 			}
5716 		}
5717 	}
5718 	/* reset the counter as FW is up after OCR */
5719 	instance->fw_fault_count_after_ocr = 0;
5720 
5721 
5722 	ddi_put32(instance->mfi_internal_dma_obj.acc_handle,
5723 	    instance->producer, 0);
5724 
5725 	ddi_put32(instance->mfi_internal_dma_obj.acc_handle,
5726 	    instance->consumer, 0);
5727 
5728 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
5729 	    " after resetting produconsumer chck indexs:"
5730 	    "producer %x consumer %x", *instance->producer,
5731 	    *instance->consumer));
5732 
5733 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
5734 	    "Calling mrsas_issue_init_mfi"));
5735 	(void) mrsas_issue_init_mfi(instance);
5736 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
5737 	    "mrsas_issue_init_mfi Done"));
5738 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
5739 	    "Calling mrsas_print_pending_cmd\n"));
5740 	(void) mrsas_print_pending_cmds(instance);
5741 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
5742 	    "mrsas_print_pending_cmd done\n"));
5743 	instance->func_ptr->enable_intr(instance);
5744 	instance->fw_outstanding = 0;
5745 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
5746 	    "Calling mrsas_issue_pending_cmds"));
5747 	(void) mrsas_issue_pending_cmds(instance);
5748 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
5749 	"Complete"));
5750 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
5751 	    "Calling aen registration"));
5752 	instance->func_ptr->issue_cmd(instance->aen_cmd, instance);
5753 	con_log(CL_ANN1, (CE_NOTE, "Unsetting adpresetinprogress flag.\n"));
5754 	mutex_enter(&instance->ocr_flags_mtx);
5755 	instance->adapterresetinprogress = 0;
5756 	mutex_exit(&instance->ocr_flags_mtx);
5757 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
5758 	    "adpterresetinprogress flag unset"));
5759 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc done\n"));
5760 	return (DDI_SUCCESS);
5761 }
5762 static int
5763 mrsas_common_check(struct mrsas_instance *instance,
5764     struct  mrsas_cmd *cmd)
5765 {
5766 	int ret = DDI_SUCCESS;
5767 
5768 	if (mrsas_check_dma_handle(cmd->frame_dma_obj.dma_handle) !=
5769 	    DDI_SUCCESS) {
5770 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
5771 		if (cmd->pkt != NULL) {
5772 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
5773 			cmd->pkt->pkt_statistics = 0;
5774 		}
5775 		ret = DDI_FAILURE;
5776 	}
5777 	if (mrsas_check_dma_handle(instance->mfi_internal_dma_obj.dma_handle)
5778 	    != DDI_SUCCESS) {
5779 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
5780 		if (cmd->pkt != NULL) {
5781 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
5782 			cmd->pkt->pkt_statistics = 0;
5783 		}
5784 		ret = DDI_FAILURE;
5785 	}
5786 	if (mrsas_check_dma_handle(instance->mfi_evt_detail_obj.dma_handle) !=
5787 	    DDI_SUCCESS) {
5788 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
5789 		if (cmd->pkt != NULL) {
5790 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
5791 			cmd->pkt->pkt_statistics = 0;
5792 		}
5793 		ret = DDI_FAILURE;
5794 	}
5795 	if (mrsas_check_acc_handle(instance->regmap_handle) != DDI_SUCCESS) {
5796 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
5797 
5798 		ddi_fm_acc_err_clear(instance->regmap_handle, DDI_FME_VER0);
5799 
5800 		if (cmd->pkt != NULL) {
5801 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
5802 			cmd->pkt->pkt_statistics = 0;
5803 		}
5804 		ret = DDI_FAILURE;
5805 	}
5806 
5807 	return (ret);
5808 }
5809 
5810 /*ARGSUSED*/
5811 static int
5812 mrsas_fm_error_cb(dev_info_t *dip, ddi_fm_error_t *err, const void *impl_data)
5813 {
5814 	/*
5815 	 * as the driver can always deal with an error in any dma or
5816 	 * access handle, we can just return the fme_status value.
5817 	 */
5818 	pci_ereport_post(dip, err, NULL);
5819 	return (err->fme_status);
5820 }
5821 
5822 static void
5823 mrsas_fm_init(struct mrsas_instance *instance)
5824 {
5825 	/* Need to change iblock to priority for new MSI intr */
5826 	ddi_iblock_cookie_t fm_ibc;
5827 
5828 	/* Only register with IO Fault Services if we have some capability */
5829 	if (instance->fm_capabilities) {
5830 		/* Adjust access and dma attributes for FMA */
5831 		endian_attr.devacc_attr_access = DDI_FLAGERR_ACC;
5832 		mrsas_generic_dma_attr.dma_attr_flags = DDI_DMA_FLAGERR;
5833 
5834 		/*
5835 		 * Register capabilities with IO Fault Services.
5836 		 * fm_capabilities will be updated to indicate
5837 		 * capabilities actually supported (not requested.)
5838 		 */
5839 
5840 		ddi_fm_init(instance->dip, &instance->fm_capabilities, &fm_ibc);
5841 
5842 		/*
5843 		 * Initialize pci ereport capabilities if ereport
5844 		 * capable (should always be.)
5845 		 */
5846 
5847 		if (DDI_FM_EREPORT_CAP(instance->fm_capabilities) ||
5848 		    DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
5849 			pci_ereport_setup(instance->dip);
5850 		}
5851 
5852 		/*
5853 		 * Register error callback if error callback capable.
5854 		 */
5855 		if (DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
5856 			ddi_fm_handler_register(instance->dip,
5857 			    mrsas_fm_error_cb, (void*) instance);
5858 		}
5859 	} else {
5860 		endian_attr.devacc_attr_access = DDI_DEFAULT_ACC;
5861 		mrsas_generic_dma_attr.dma_attr_flags = 0;
5862 	}
5863 }
5864 
5865 static void
5866 mrsas_fm_fini(struct mrsas_instance *instance)
5867 {
5868 	/* Only unregister FMA capabilities if registered */
5869 	if (instance->fm_capabilities) {
5870 		/*
5871 		 * Un-register error callback if error callback capable.
5872 		 */
5873 		if (DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
5874 			ddi_fm_handler_unregister(instance->dip);
5875 		}
5876 
5877 		/*
5878 		 * Release any resources allocated by pci_ereport_setup()
5879 		 */
5880 		if (DDI_FM_EREPORT_CAP(instance->fm_capabilities) ||
5881 		    DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
5882 			pci_ereport_teardown(instance->dip);
5883 		}
5884 
5885 		/* Unregister from IO Fault Services */
5886 		ddi_fm_fini(instance->dip);
5887 
5888 		/* Adjust access and dma attributes for FMA */
5889 		endian_attr.devacc_attr_access = DDI_DEFAULT_ACC;
5890 		mrsas_generic_dma_attr.dma_attr_flags = 0;
5891 	}
5892 }
5893 
5894 int
5895 mrsas_check_acc_handle(ddi_acc_handle_t handle)
5896 {
5897 	ddi_fm_error_t de;
5898 
5899 	if (handle == NULL) {
5900 		return (DDI_FAILURE);
5901 	}
5902 
5903 	ddi_fm_acc_err_get(handle, &de, DDI_FME_VERSION);
5904 
5905 	return (de.fme_status);
5906 }
5907 
5908 int
5909 mrsas_check_dma_handle(ddi_dma_handle_t handle)
5910 {
5911 	ddi_fm_error_t de;
5912 
5913 	if (handle == NULL) {
5914 		return (DDI_FAILURE);
5915 	}
5916 
5917 	ddi_fm_dma_err_get(handle, &de, DDI_FME_VERSION);
5918 
5919 	return (de.fme_status);
5920 }
5921 
5922 void
5923 mrsas_fm_ereport(struct mrsas_instance *instance, char *detail)
5924 {
5925 	uint64_t ena;
5926 	char buf[FM_MAX_CLASS];
5927 
5928 	(void) snprintf(buf, FM_MAX_CLASS, "%s.%s", DDI_FM_DEVICE, detail);
5929 	ena = fm_ena_generate(0, FM_ENA_FMT1);
5930 	if (DDI_FM_EREPORT_CAP(instance->fm_capabilities)) {
5931 		ddi_fm_ereport_post(instance->dip, buf, ena, DDI_NOSLEEP,
5932 		    FM_VERSION, DATA_TYPE_UINT8, FM_EREPORT_VERSION, NULL);
5933 	}
5934 }
5935 
5936 static int
5937 mrsas_add_intrs(struct mrsas_instance *instance, int intr_type)
5938 {
5939 
5940 	dev_info_t *dip = instance->dip;
5941 	int	avail, actual, count;
5942 	int	i, flag, ret;
5943 
5944 	con_log(CL_DLEVEL1, (CE_WARN, "mrsas_add_intrs: intr_type = %x",
5945 	    intr_type));
5946 
5947 	/* Get number of interrupts */
5948 	ret = ddi_intr_get_nintrs(dip, intr_type, &count);
5949 	if ((ret != DDI_SUCCESS) || (count == 0)) {
5950 		con_log(CL_ANN, (CE_WARN, "ddi_intr_get_nintrs() failed:"
5951 		    "ret %d count %d", ret, count));
5952 
5953 		return (DDI_FAILURE);
5954 	}
5955 
5956 	con_log(CL_DLEVEL1, (CE_WARN, "mrsas_add_intrs: count = %d ", count));
5957 
5958 	/* Get number of available interrupts */
5959 	ret = ddi_intr_get_navail(dip, intr_type, &avail);
5960 	if ((ret != DDI_SUCCESS) || (avail == 0)) {
5961 		con_log(CL_ANN, (CE_WARN, "ddi_intr_get_navail() failed:"
5962 		    "ret %d avail %d", ret, avail));
5963 
5964 		return (DDI_FAILURE);
5965 	}
5966 	con_log(CL_DLEVEL1, (CE_WARN, "mrsas_add_intrs: avail = %d ", avail));
5967 
5968 	/* Only one interrupt routine. So limit the count to 1 */
5969 	if (count > 1) {
5970 		count = 1;
5971 	}
5972 
5973 	/*
5974 	 * Allocate an array of interrupt handlers. Currently we support
5975 	 * only one interrupt. The framework can be extended later.
5976 	 */
5977 	instance->intr_size = count * sizeof (ddi_intr_handle_t);
5978 	instance->intr_htable = kmem_zalloc(instance->intr_size, KM_SLEEP);
5979 	ASSERT(instance->intr_htable);
5980 
5981 	flag = ((intr_type == DDI_INTR_TYPE_MSI) || (intr_type ==
5982 	    DDI_INTR_TYPE_MSIX)) ? DDI_INTR_ALLOC_STRICT:DDI_INTR_ALLOC_NORMAL;
5983 
5984 	/* Allocate interrupt */
5985 	ret = ddi_intr_alloc(dip, instance->intr_htable, intr_type, 0,
5986 	    count, &actual, flag);
5987 
5988 	if ((ret != DDI_SUCCESS) || (actual == 0)) {
5989 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
5990 		    "avail = %d", avail));
5991 		kmem_free(instance->intr_htable, instance->intr_size);
5992 		return (DDI_FAILURE);
5993 	}
5994 	if (actual < count) {
5995 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
5996 		    "Requested = %d  Received = %d", count, actual));
5997 	}
5998 	instance->intr_cnt = actual;
5999 
6000 	/*
6001 	 * Get the priority of the interrupt allocated.
6002 	 */
6003 	if ((ret = ddi_intr_get_pri(instance->intr_htable[0],
6004 	    &instance->intr_pri)) != DDI_SUCCESS) {
6005 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
6006 		    "get priority call failed"));
6007 
6008 		for (i = 0; i < actual; i++) {
6009 			(void) ddi_intr_free(instance->intr_htable[i]);
6010 		}
6011 		kmem_free(instance->intr_htable, instance->intr_size);
6012 		return (DDI_FAILURE);
6013 	}
6014 
6015 	/*
6016 	 * Test for high level mutex. we don't support them.
6017 	 */
6018 	if (instance->intr_pri >= ddi_intr_get_hilevel_pri()) {
6019 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
6020 		    "High level interrupts not supported."));
6021 
6022 		for (i = 0; i < actual; i++) {
6023 			(void) ddi_intr_free(instance->intr_htable[i]);
6024 		}
6025 		kmem_free(instance->intr_htable, instance->intr_size);
6026 		return (DDI_FAILURE);
6027 	}
6028 
6029 	con_log(CL_DLEVEL1, (CE_NOTE, "mrsas_add_intrs: intr_pri = 0x%x ",
6030 	    instance->intr_pri));
6031 
6032 	/* Call ddi_intr_add_handler() */
6033 	for (i = 0; i < actual; i++) {
6034 		ret = ddi_intr_add_handler(instance->intr_htable[i],
6035 		    (ddi_intr_handler_t *)mrsas_isr, (caddr_t)instance,
6036 		    (caddr_t)(uintptr_t)i);
6037 
6038 		if (ret != DDI_SUCCESS) {
6039 			con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs:"
6040 			    "failed %d", ret));
6041 
6042 			for (i = 0; i < actual; i++) {
6043 				(void) ddi_intr_free(instance->intr_htable[i]);
6044 			}
6045 			kmem_free(instance->intr_htable, instance->intr_size);
6046 			return (DDI_FAILURE);
6047 		}
6048 
6049 	}
6050 
6051 	con_log(CL_DLEVEL1, (CE_WARN, " ddi_intr_add_handler done"));
6052 
6053 	if ((ret = ddi_intr_get_cap(instance->intr_htable[0],
6054 	    &instance->intr_cap)) != DDI_SUCCESS) {
6055 		con_log(CL_ANN, (CE_WARN, "ddi_intr_get_cap() failed %d",
6056 		    ret));
6057 
6058 		/* Free already allocated intr */
6059 		for (i = 0; i < actual; i++) {
6060 			(void) ddi_intr_remove_handler(
6061 			    instance->intr_htable[i]);
6062 			(void) ddi_intr_free(instance->intr_htable[i]);
6063 		}
6064 		kmem_free(instance->intr_htable, instance->intr_size);
6065 		return (DDI_FAILURE);
6066 	}
6067 
6068 	if (instance->intr_cap &  DDI_INTR_FLAG_BLOCK) {
6069 		con_log(CL_ANN, (CE_WARN, "Calling ddi_intr_block _enable"));
6070 
6071 		(void) ddi_intr_block_enable(instance->intr_htable,
6072 		    instance->intr_cnt);
6073 	} else {
6074 		con_log(CL_ANN, (CE_NOTE, " calling ddi_intr_enable"));
6075 
6076 		for (i = 0; i < instance->intr_cnt; i++) {
6077 			(void) ddi_intr_enable(instance->intr_htable[i]);
6078 			con_log(CL_ANN, (CE_NOTE, "ddi intr enable returns "
6079 			    "%d", i));
6080 		}
6081 	}
6082 
6083 	return (DDI_SUCCESS);
6084 
6085 }
6086 
6087 
6088 static void
6089 mrsas_rem_intrs(struct mrsas_instance *instance)
6090 {
6091 	int i;
6092 
6093 	con_log(CL_ANN, (CE_NOTE, "mrsas_rem_intrs called"));
6094 
6095 	/* Disable all interrupts first */
6096 	if (instance->intr_cap & DDI_INTR_FLAG_BLOCK) {
6097 		(void) ddi_intr_block_disable(instance->intr_htable,
6098 		    instance->intr_cnt);
6099 	} else {
6100 		for (i = 0; i < instance->intr_cnt; i++) {
6101 			(void) ddi_intr_disable(instance->intr_htable[i]);
6102 		}
6103 	}
6104 
6105 	/* Remove all the handlers */
6106 
6107 	for (i = 0; i < instance->intr_cnt; i++) {
6108 		(void) ddi_intr_remove_handler(instance->intr_htable[i]);
6109 		(void) ddi_intr_free(instance->intr_htable[i]);
6110 	}
6111 
6112 	kmem_free(instance->intr_htable, instance->intr_size);
6113 }
6114 
6115 static int
6116 mrsas_tran_bus_config(dev_info_t *parent, uint_t flags,
6117     ddi_bus_config_op_t op, void *arg, dev_info_t **childp)
6118 {
6119 	struct mrsas_instance *instance;
6120 	int config;
6121 	int rval;
6122 
6123 	char *ptr = NULL;
6124 	int tgt, lun;
6125 
6126 	con_log(CL_ANN1, (CE_NOTE, "Bus config called for op = %x", op));
6127 
6128 	if ((instance = ddi_get_soft_state(mrsas_state,
6129 	    ddi_get_instance(parent))) == NULL) {
6130 		return (NDI_FAILURE);
6131 	}
6132 
6133 	/* Hold nexus during bus_config */
6134 	ndi_devi_enter(parent, &config);
6135 	switch (op) {
6136 	case BUS_CONFIG_ONE: {
6137 
6138 		/* parse wwid/target name out of name given */
6139 		if ((ptr = strchr((char *)arg, '@')) == NULL) {
6140 			rval = NDI_FAILURE;
6141 			break;
6142 		}
6143 		ptr++;
6144 
6145 		if (mrsas_parse_devname(arg, &tgt, &lun) != 0) {
6146 			rval = NDI_FAILURE;
6147 			break;
6148 		}
6149 
6150 		if (lun == 0) {
6151 			rval = mrsas_config_ld(instance, tgt, lun, childp);
6152 		} else {
6153 			rval = NDI_FAILURE;
6154 		}
6155 
6156 		break;
6157 	}
6158 	case BUS_CONFIG_DRIVER:
6159 	case BUS_CONFIG_ALL: {
6160 
6161 		rval = mrsas_config_all_devices(instance);
6162 
6163 		rval = NDI_SUCCESS;
6164 		break;
6165 	}
6166 	}
6167 
6168 	if (rval == NDI_SUCCESS) {
6169 		rval = ndi_busop_bus_config(parent, flags, op, arg, childp, 0);
6170 
6171 	}
6172 	ndi_devi_exit(parent, config);
6173 
6174 	con_log(CL_ANN1, (CE_NOTE, "mrsas_tran_bus_config: rval = %x",
6175 	    rval));
6176 	return (rval);
6177 }
6178 
6179 static int
6180 mrsas_config_all_devices(struct mrsas_instance *instance)
6181 {
6182 	int rval, tgt;
6183 
6184 	for (tgt = 0; tgt < MRDRV_MAX_LD; tgt++) {
6185 		(void) mrsas_config_ld(instance, tgt, 0, NULL);
6186 
6187 	}
6188 
6189 	rval = NDI_SUCCESS;
6190 	return (rval);
6191 }
6192 
6193 static int
6194 mrsas_parse_devname(char *devnm, int *tgt, int *lun)
6195 {
6196 	char devbuf[SCSI_MAXNAMELEN];
6197 	char *addr;
6198 	char *p,  *tp, *lp;
6199 	long num;
6200 
6201 	/* Parse dev name and address */
6202 	(void) strcpy(devbuf, devnm);
6203 	addr = "";
6204 	for (p = devbuf; *p != '\0'; p++) {
6205 		if (*p == '@') {
6206 			addr = p + 1;
6207 			*p = '\0';
6208 		} else if (*p == ':') {
6209 			*p = '\0';
6210 			break;
6211 		}
6212 	}
6213 
6214 	/* Parse target and lun */
6215 	for (p = tp = addr, lp = NULL; *p != '\0'; p++) {
6216 		if (*p == ',') {
6217 			lp = p + 1;
6218 			*p = '\0';
6219 			break;
6220 		}
6221 	}
6222 	if (tgt && tp) {
6223 		if (ddi_strtol(tp, NULL, 0x10, &num)) {
6224 			return (DDI_FAILURE); /* Can declare this as constant */
6225 		}
6226 			*tgt = (int)num;
6227 	}
6228 	if (lun && lp) {
6229 		if (ddi_strtol(lp, NULL, 0x10, &num)) {
6230 			return (DDI_FAILURE);
6231 		}
6232 			*lun = (int)num;
6233 	}
6234 	return (DDI_SUCCESS);  /* Success case */
6235 }
6236 
6237 static int
6238 mrsas_config_ld(struct mrsas_instance *instance, uint16_t tgt,
6239     uint8_t lun, dev_info_t **ldip)
6240 {
6241 	struct scsi_device *sd;
6242 	dev_info_t *child;
6243 	int rval;
6244 
6245 	con_log(CL_ANN1, (CE_NOTE, "mrsas_config_ld: t = %d l = %d",
6246 	    tgt, lun));
6247 
6248 	if ((child = mrsas_find_child(instance, tgt, lun)) != NULL) {
6249 		if (ldip) {
6250 			*ldip = child;
6251 		}
6252 		con_log(CL_ANN1, (CE_NOTE,
6253 		    "mrsas_config_ld: Child = %p found t = %d l = %d",
6254 		    (void *)child, tgt, lun));
6255 		return (NDI_SUCCESS);
6256 	}
6257 
6258 	sd = kmem_zalloc(sizeof (struct scsi_device), KM_SLEEP);
6259 	sd->sd_address.a_hba_tran = instance->tran;
6260 	sd->sd_address.a_target = (uint16_t)tgt;
6261 	sd->sd_address.a_lun = (uint8_t)lun;
6262 
6263 	if (scsi_hba_probe(sd, NULL) == SCSIPROBE_EXISTS)
6264 		rval = mrsas_config_scsi_device(instance, sd, ldip);
6265 	else
6266 		rval = NDI_FAILURE;
6267 
6268 	/* sd_unprobe is blank now. Free buffer manually */
6269 	if (sd->sd_inq) {
6270 		kmem_free(sd->sd_inq, SUN_INQSIZE);
6271 		sd->sd_inq = (struct scsi_inquiry *)NULL;
6272 	}
6273 
6274 	kmem_free(sd, sizeof (struct scsi_device));
6275 	con_log(CL_ANN1, (CE_NOTE, "mrsas_config_ld: return rval = %d",
6276 	    rval));
6277 	return (rval);
6278 }
6279 
6280 static int
6281 mrsas_config_scsi_device(struct mrsas_instance *instance,
6282     struct scsi_device *sd, dev_info_t **dipp)
6283 {
6284 	char *nodename = NULL;
6285 	char **compatible = NULL;
6286 	int ncompatible = 0;
6287 	char *childname;
6288 	dev_info_t *ldip = NULL;
6289 	int tgt = sd->sd_address.a_target;
6290 	int lun = sd->sd_address.a_lun;
6291 	int dtype = sd->sd_inq->inq_dtype & DTYPE_MASK;
6292 	int rval;
6293 
6294 	con_log(CL_ANN1, (CE_WARN, "mr_sas: scsi_device t%dL%d", tgt, lun));
6295 	scsi_hba_nodename_compatible_get(sd->sd_inq, NULL, dtype,
6296 	    NULL, &nodename, &compatible, &ncompatible);
6297 
6298 	if (nodename == NULL) {
6299 		con_log(CL_ANN1, (CE_WARN, "mr_sas: Found no compatible driver "
6300 		    "for t%dL%d", tgt, lun));
6301 		rval = NDI_FAILURE;
6302 		goto finish;
6303 	}
6304 
6305 	childname = (dtype == DTYPE_DIRECT) ? "sd" : nodename;
6306 	con_log(CL_ANN1, (CE_WARN,
6307 	    "mr_sas: Childname = %2s nodename = %s", childname, nodename));
6308 
6309 	/* Create a dev node */
6310 	rval = ndi_devi_alloc(instance->dip, childname, DEVI_SID_NODEID, &ldip);
6311 	con_log(CL_ANN1, (CE_WARN,
6312 	    "mr_sas_config_scsi_device: ndi_devi_alloc rval = %x", rval));
6313 	if (rval == NDI_SUCCESS) {
6314 		if (ndi_prop_update_int(DDI_DEV_T_NONE, ldip, "target", tgt) !=
6315 		    DDI_PROP_SUCCESS) {
6316 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to create "
6317 			    "property for t%dl%d target", tgt, lun));
6318 			rval = NDI_FAILURE;
6319 			goto finish;
6320 		}
6321 		if (ndi_prop_update_int(DDI_DEV_T_NONE, ldip, "lun", lun) !=
6322 		    DDI_PROP_SUCCESS) {
6323 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to create "
6324 			    "property for t%dl%d lun", tgt, lun));
6325 			rval = NDI_FAILURE;
6326 			goto finish;
6327 		}
6328 
6329 		if (ndi_prop_update_string_array(DDI_DEV_T_NONE, ldip,
6330 		    "compatible", compatible, ncompatible) !=
6331 		    DDI_PROP_SUCCESS) {
6332 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to create "
6333 			    "property for t%dl%d compatible", tgt, lun));
6334 			rval = NDI_FAILURE;
6335 			goto finish;
6336 		}
6337 
6338 		rval = ndi_devi_online(ldip, NDI_ONLINE_ATTACH);
6339 		if (rval != NDI_SUCCESS) {
6340 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to online "
6341 			    "t%dl%d", tgt, lun));
6342 			ndi_prop_remove_all(ldip);
6343 			(void) ndi_devi_free(ldip);
6344 		} else {
6345 			con_log(CL_ANN1, (CE_WARN, "mr_sas: online Done :"
6346 			    "0 t%dl%d", tgt, lun));
6347 		}
6348 
6349 	}
6350 finish:
6351 	if (dipp) {
6352 		*dipp = ldip;
6353 	}
6354 
6355 	con_log(CL_DLEVEL1, (CE_WARN,
6356 	    "mr_sas: config_scsi_device rval = %d t%dL%d",
6357 	    rval, tgt, lun));
6358 	scsi_hba_nodename_compatible_free(nodename, compatible);
6359 	return (rval);
6360 }
6361 
6362 /*ARGSUSED*/
6363 static int
6364 mrsas_service_evt(struct mrsas_instance *instance, int tgt, int lun, int event,
6365     uint64_t wwn)
6366 {
6367 	struct mrsas_eventinfo *mrevt = NULL;
6368 
6369 	con_log(CL_ANN1, (CE_NOTE,
6370 	    "mrsas_service_evt called for t%dl%d event = %d",
6371 	    tgt, lun, event));
6372 
6373 	if ((instance->taskq == NULL) || (mrevt =
6374 	    kmem_zalloc(sizeof (struct mrsas_eventinfo), KM_NOSLEEP)) == NULL) {
6375 		return (ENOMEM);
6376 	}
6377 
6378 	mrevt->instance = instance;
6379 	mrevt->tgt = tgt;
6380 	mrevt->lun = lun;
6381 	mrevt->event = event;
6382 
6383 	if ((ddi_taskq_dispatch(instance->taskq,
6384 	    (void (*)(void *))mrsas_issue_evt_taskq, mrevt, DDI_NOSLEEP)) !=
6385 	    DDI_SUCCESS) {
6386 		con_log(CL_ANN1, (CE_NOTE,
6387 		    "mr_sas: Event task failed for t%dl%d event = %d",
6388 		    tgt, lun, event));
6389 		kmem_free(mrevt, sizeof (struct mrsas_eventinfo));
6390 		return (DDI_FAILURE);
6391 	}
6392 	DTRACE_PROBE3(service_evt, int, tgt, int, lun, int, event);
6393 	return (DDI_SUCCESS);
6394 }
6395 
6396 static void
6397 mrsas_issue_evt_taskq(struct mrsas_eventinfo *mrevt)
6398 {
6399 	struct mrsas_instance *instance = mrevt->instance;
6400 	dev_info_t *dip, *pdip;
6401 	int circ1 = 0;
6402 	char *devname;
6403 
6404 	con_log(CL_ANN1, (CE_NOTE, "mrsas_issue_evt_taskq: called for"
6405 	    " tgt %d lun %d event %d",
6406 	    mrevt->tgt, mrevt->lun, mrevt->event));
6407 
6408 	if (mrevt->tgt < MRDRV_MAX_LD && mrevt->lun == 0) {
6409 		dip = instance->mr_ld_list[mrevt->tgt].dip;
6410 	} else {
6411 		return;
6412 	}
6413 
6414 	ndi_devi_enter(instance->dip, &circ1);
6415 	switch (mrevt->event) {
6416 	case MRSAS_EVT_CONFIG_TGT:
6417 		if (dip == NULL) {
6418 
6419 			if (mrevt->lun == 0) {
6420 				(void) mrsas_config_ld(instance, mrevt->tgt,
6421 				    0, NULL);
6422 			}
6423 			con_log(CL_ANN1, (CE_NOTE,
6424 			    "mr_sas: EVT_CONFIG_TGT called:"
6425 			    " for tgt %d lun %d event %d",
6426 			    mrevt->tgt, mrevt->lun, mrevt->event));
6427 
6428 		} else {
6429 			con_log(CL_ANN1, (CE_NOTE,
6430 			    "mr_sas: EVT_CONFIG_TGT dip != NULL:"
6431 			    " for tgt %d lun %d event %d",
6432 			    mrevt->tgt, mrevt->lun, mrevt->event));
6433 		}
6434 		break;
6435 	case MRSAS_EVT_UNCONFIG_TGT:
6436 		if (dip) {
6437 			if (i_ddi_devi_attached(dip)) {
6438 
6439 				pdip = ddi_get_parent(dip);
6440 
6441 				devname = kmem_zalloc(MAXNAMELEN + 1, KM_SLEEP);
6442 				(void) ddi_deviname(dip, devname);
6443 
6444 				(void) devfs_clean(pdip, devname + 1,
6445 				    DV_CLEAN_FORCE);
6446 				kmem_free(devname, MAXNAMELEN + 1);
6447 			}
6448 			(void) ndi_devi_offline(dip, NDI_DEVI_REMOVE);
6449 			con_log(CL_ANN1, (CE_NOTE,
6450 			    "mr_sas: EVT_UNCONFIG_TGT called:"
6451 			    " for tgt %d lun %d event %d",
6452 			    mrevt->tgt, mrevt->lun, mrevt->event));
6453 		} else {
6454 			con_log(CL_ANN1, (CE_NOTE,
6455 			    "mr_sas: EVT_UNCONFIG_TGT dip == NULL:"
6456 			    " for tgt %d lun %d event %d",
6457 			    mrevt->tgt, mrevt->lun, mrevt->event));
6458 		}
6459 		break;
6460 	}
6461 	kmem_free(mrevt, sizeof (struct mrsas_eventinfo));
6462 	ndi_devi_exit(instance->dip, circ1);
6463 }
6464 
6465 static int
6466 mrsas_mode_sense_build(struct scsi_pkt *pkt)
6467 {
6468 	union scsi_cdb		*cdbp;
6469 	uint16_t 		page_code;
6470 	struct scsa_cmd		*acmd;
6471 	struct buf		*bp;
6472 	struct mode_header	*modehdrp;
6473 
6474 	cdbp = (void *)pkt->pkt_cdbp;
6475 	page_code = cdbp->cdb_un.sg.scsi[0];
6476 	acmd = PKT2CMD(pkt);
6477 	bp = acmd->cmd_buf;
6478 	if ((!bp) && bp->b_un.b_addr && bp->b_bcount && acmd->cmd_dmacount) {
6479 		con_log(CL_ANN1, (CE_WARN, "Failing MODESENSE Command"));
6480 		/* ADD pkt statistics as Command failed. */
6481 		return (NULL);
6482 	}
6483 
6484 	bp_mapin(bp);
6485 	bzero(bp->b_un.b_addr, bp->b_bcount);
6486 
6487 	switch (page_code) {
6488 		case 0x3: {
6489 			struct mode_format *page3p = NULL;
6490 			modehdrp = (struct mode_header *)(bp->b_un.b_addr);
6491 			modehdrp->bdesc_length = MODE_BLK_DESC_LENGTH;
6492 
6493 			page3p = (void *)((caddr_t)modehdrp +
6494 			    MODE_HEADER_LENGTH + MODE_BLK_DESC_LENGTH);
6495 			page3p->mode_page.code = 0x3;
6496 			page3p->mode_page.length =
6497 			    (uchar_t)(sizeof (struct mode_format));
6498 			page3p->data_bytes_sect = 512;
6499 			page3p->sect_track = 63;
6500 			break;
6501 		}
6502 		case 0x4: {
6503 			struct mode_geometry *page4p = NULL;
6504 			modehdrp = (struct mode_header *)(bp->b_un.b_addr);
6505 			modehdrp->bdesc_length = MODE_BLK_DESC_LENGTH;
6506 
6507 			page4p = (void *)((caddr_t)modehdrp +
6508 			    MODE_HEADER_LENGTH + MODE_BLK_DESC_LENGTH);
6509 			page4p->mode_page.code = 0x4;
6510 			page4p->mode_page.length =
6511 			    (uchar_t)(sizeof (struct mode_geometry));
6512 			page4p->heads = 255;
6513 			page4p->rpm = 10000;
6514 			break;
6515 		}
6516 		default:
6517 			break;
6518 	}
6519 	return (NULL);
6520 }
6521