xref: /illumos-gate/usr/src/uts/common/io/mr_sas/mr_sas.c (revision a6f561b4aee75d0d028e7b36b151c8ed8a86bc76)
1 /*
2  * mr_sas.c: source for mr_sas driver
3  *
4  * Solaris MegaRAID device driver for SAS2.0 controllers
5  * Copyright (c) 2008-2012, LSI Logic Corporation.
6  * All rights reserved.
7  *
8  * Version:
9  * Author:
10  *		Swaminathan K S
11  *		Arun Chandrashekhar
12  *		Manju R
13  *		Rasheed
14  *		Shakeel Bukhari
15  *
16  * Redistribution and use in source and binary forms, with or without
17  * modification, are permitted provided that the following conditions are met:
18  *
19  * 1. Redistributions of source code must retain the above copyright notice,
20  *    this list of conditions and the following disclaimer.
21  *
22  * 2. Redistributions in binary form must reproduce the above copyright notice,
23  *    this list of conditions and the following disclaimer in the documentation
24  *    and/or other materials provided with the distribution.
25  *
26  * 3. Neither the name of the author nor the names of its contributors may be
27  *    used to endorse or promote products derived from this software without
28  *    specific prior written permission.
29  *
30  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
31  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
32  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
33  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
34  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
35  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
36  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
37  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
38  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
39  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
40  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
41  * DAMAGE.
42  */
43 
44 /*
45  * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
46  * Copyright (c) 2011 Bayard G. Bell. All rights reserved.
47  * Copyright 2012 Nexenta System, Inc. All rights reserved.
48  */
49 
50 #include <sys/types.h>
51 #include <sys/param.h>
52 #include <sys/file.h>
53 #include <sys/errno.h>
54 #include <sys/open.h>
55 #include <sys/cred.h>
56 #include <sys/modctl.h>
57 #include <sys/conf.h>
58 #include <sys/devops.h>
59 #include <sys/cmn_err.h>
60 #include <sys/kmem.h>
61 #include <sys/stat.h>
62 #include <sys/mkdev.h>
63 #include <sys/pci.h>
64 #include <sys/scsi/scsi.h>
65 #include <sys/ddi.h>
66 #include <sys/sunddi.h>
67 #include <sys/atomic.h>
68 #include <sys/signal.h>
69 #include <sys/byteorder.h>
70 #include <sys/sdt.h>
71 #include <sys/fs/dv_node.h>	/* devfs_clean */
72 
73 #include "mr_sas.h"
74 
75 /*
76  * FMA header files
77  */
78 #include <sys/ddifm.h>
79 #include <sys/fm/protocol.h>
80 #include <sys/fm/util.h>
81 #include <sys/fm/io/ddi.h>
82 
83 /*
84  * Local static data
85  */
86 static void	*mrsas_state = NULL;
87 static volatile boolean_t	mrsas_relaxed_ordering = B_TRUE;
88 volatile int	debug_level_g = CL_NONE;
89 static volatile int	msi_enable = 1;
90 static volatile int 	ctio_enable = 1;
91 
92 /* Default Timeout value to issue online controller reset */
93 volatile int  debug_timeout_g  = 0xF0;		/* 0xB4; */
94 /* Simulate consecutive firmware fault */
95 static volatile int  debug_fw_faults_after_ocr_g  = 0;
96 #ifdef OCRDEBUG
97 /* Simulate three consecutive timeout for an IO */
98 static volatile int  debug_consecutive_timeout_after_ocr_g  = 0;
99 #endif
100 
101 #pragma weak scsi_hba_open
102 #pragma weak scsi_hba_close
103 #pragma weak scsi_hba_ioctl
104 
105 /* Local static prototypes. */
106 static int	mrsas_getinfo(dev_info_t *, ddi_info_cmd_t,  void *, void **);
107 static int	mrsas_attach(dev_info_t *, ddi_attach_cmd_t);
108 #ifdef __sparc
109 static int	mrsas_reset(dev_info_t *, ddi_reset_cmd_t);
110 #else
111 static int	mrsas_quiesce(dev_info_t *);
112 #endif
113 static int	mrsas_detach(dev_info_t *, ddi_detach_cmd_t);
114 static int	mrsas_open(dev_t *, int, int, cred_t *);
115 static int	mrsas_close(dev_t, int, int, cred_t *);
116 static int	mrsas_ioctl(dev_t, int, intptr_t, int, cred_t *, int *);
117 
118 static int	mrsas_tran_tgt_init(dev_info_t *, dev_info_t *,
119 		    scsi_hba_tran_t *, struct scsi_device *);
120 static struct scsi_pkt *mrsas_tran_init_pkt(struct scsi_address *, register
121 		    struct scsi_pkt *, struct buf *, int, int, int, int,
122 		    int (*)(), caddr_t);
123 static int	mrsas_tran_start(struct scsi_address *,
124 		    register struct scsi_pkt *);
125 static int	mrsas_tran_abort(struct scsi_address *, struct scsi_pkt *);
126 static int	mrsas_tran_reset(struct scsi_address *, int);
127 static int	mrsas_tran_getcap(struct scsi_address *, char *, int);
128 static int	mrsas_tran_setcap(struct scsi_address *, char *, int, int);
129 static void	mrsas_tran_destroy_pkt(struct scsi_address *,
130 		    struct scsi_pkt *);
131 static void	mrsas_tran_dmafree(struct scsi_address *, struct scsi_pkt *);
132 static void	mrsas_tran_sync_pkt(struct scsi_address *, struct scsi_pkt *);
133 static int	mrsas_tran_quiesce(dev_info_t *dip);
134 static int	mrsas_tran_unquiesce(dev_info_t *dip);
135 static uint_t	mrsas_isr();
136 static uint_t	mrsas_softintr();
137 static void	mrsas_undo_resources(dev_info_t *, struct mrsas_instance *);
138 static struct mrsas_cmd *get_mfi_pkt(struct mrsas_instance *);
139 static void	return_mfi_pkt(struct mrsas_instance *,
140 		    struct mrsas_cmd *);
141 
142 static void	free_space_for_mfi(struct mrsas_instance *);
143 static uint32_t	read_fw_status_reg_ppc(struct mrsas_instance *);
144 static void	issue_cmd_ppc(struct mrsas_cmd *, struct mrsas_instance *);
145 static int	issue_cmd_in_poll_mode_ppc(struct mrsas_instance *,
146 		    struct mrsas_cmd *);
147 static int	issue_cmd_in_sync_mode_ppc(struct mrsas_instance *,
148 		    struct mrsas_cmd *);
149 static void	enable_intr_ppc(struct mrsas_instance *);
150 static void	disable_intr_ppc(struct mrsas_instance *);
151 static int	intr_ack_ppc(struct mrsas_instance *);
152 static void	flush_cache(struct mrsas_instance *instance);
153 void	display_scsi_inquiry(caddr_t);
154 static int	start_mfi_aen(struct mrsas_instance *instance);
155 static int	handle_drv_ioctl(struct mrsas_instance *instance,
156 		    struct mrsas_ioctl *ioctl, int mode);
157 static int	handle_mfi_ioctl(struct mrsas_instance *instance,
158 		    struct mrsas_ioctl *ioctl, int mode);
159 static int	handle_mfi_aen(struct mrsas_instance *instance,
160 		    struct mrsas_aen *aen);
161 static struct mrsas_cmd *build_cmd(struct mrsas_instance *,
162     struct scsi_address *, struct scsi_pkt *, uchar_t *);
163 static int	alloc_additional_dma_buffer(struct mrsas_instance *);
164 static void	complete_cmd_in_sync_mode(struct mrsas_instance *,
165 		struct mrsas_cmd *);
166 static int	mrsas_kill_adapter(struct mrsas_instance *);
167 static int	mrsas_issue_init_mfi(struct mrsas_instance *);
168 static int	mrsas_reset_ppc(struct mrsas_instance *);
169 static uint32_t mrsas_initiate_ocr_if_fw_is_faulty(struct mrsas_instance *);
170 static int	wait_for_outstanding(struct mrsas_instance *instance);
171 static int	register_mfi_aen(struct mrsas_instance *instance,
172 		    uint32_t seq_num, uint32_t class_locale_word);
173 static int	issue_mfi_pthru(struct mrsas_instance *instance, struct
174 		    mrsas_ioctl *ioctl, struct mrsas_cmd *cmd, int mode);
175 static int	issue_mfi_dcmd(struct mrsas_instance *instance, struct
176 		    mrsas_ioctl *ioctl, struct mrsas_cmd *cmd, int mode);
177 static int	issue_mfi_smp(struct mrsas_instance *instance, struct
178 		    mrsas_ioctl *ioctl, struct mrsas_cmd *cmd, int mode);
179 static int	issue_mfi_stp(struct mrsas_instance *instance, struct
180 		    mrsas_ioctl *ioctl, struct mrsas_cmd *cmd, int mode);
181 static int	abort_aen_cmd(struct mrsas_instance *instance,
182 		    struct mrsas_cmd *cmd_to_abort);
183 
184 static void	mrsas_rem_intrs(struct mrsas_instance *instance);
185 static int	mrsas_add_intrs(struct mrsas_instance *instance, int intr_type);
186 
187 static void	mrsas_tran_tgt_free(dev_info_t *, dev_info_t *,
188 		    scsi_hba_tran_t *, struct scsi_device *);
189 static int	mrsas_tran_bus_config(dev_info_t *, uint_t,
190 		    ddi_bus_config_op_t, void *, dev_info_t **);
191 static int	mrsas_parse_devname(char *, int *, int *);
192 static int	mrsas_config_all_devices(struct mrsas_instance *);
193 static int	mrsas_config_ld(struct mrsas_instance *, uint16_t,
194 			uint8_t, dev_info_t **);
195 static int	mrsas_name_node(dev_info_t *, char *, int);
196 static void	mrsas_issue_evt_taskq(struct mrsas_eventinfo *);
197 static void	free_additional_dma_buffer(struct mrsas_instance *);
198 static void io_timeout_checker(void *);
199 static void mrsas_fm_init(struct mrsas_instance *);
200 static void mrsas_fm_fini(struct mrsas_instance *);
201 
202 static struct mrsas_function_template mrsas_function_template_ppc = {
203 	.read_fw_status_reg = read_fw_status_reg_ppc,
204 	.issue_cmd = issue_cmd_ppc,
205 	.issue_cmd_in_sync_mode = issue_cmd_in_sync_mode_ppc,
206 	.issue_cmd_in_poll_mode = issue_cmd_in_poll_mode_ppc,
207 	.enable_intr = enable_intr_ppc,
208 	.disable_intr = disable_intr_ppc,
209 	.intr_ack = intr_ack_ppc,
210 	.init_adapter = mrsas_init_adapter_ppc
211 };
212 
213 
214 static struct mrsas_function_template mrsas_function_template_fusion = {
215 	.read_fw_status_reg = tbolt_read_fw_status_reg,
216 	.issue_cmd = tbolt_issue_cmd,
217 	.issue_cmd_in_sync_mode = tbolt_issue_cmd_in_sync_mode,
218 	.issue_cmd_in_poll_mode = tbolt_issue_cmd_in_poll_mode,
219 	.enable_intr = tbolt_enable_intr,
220 	.disable_intr = tbolt_disable_intr,
221 	.intr_ack = tbolt_intr_ack,
222 	.init_adapter = mrsas_init_adapter_tbolt
223 };
224 
225 
226 ddi_dma_attr_t mrsas_generic_dma_attr = {
227 	DMA_ATTR_V0,		/* dma_attr_version */
228 	0,			/* low DMA address range */
229 	0xFFFFFFFFU,		/* high DMA address range */
230 	0xFFFFFFFFU,		/* DMA counter register	 */
231 	8,			/* DMA address alignment */
232 	0x07,			/* DMA burstsizes  */
233 	1,			/* min DMA size */
234 	0xFFFFFFFFU,		/* max DMA size */
235 	0xFFFFFFFFU,		/* segment boundary */
236 	MRSAS_MAX_SGE_CNT,	/* dma_attr_sglen */
237 	512,			/* granularity of device */
238 	0			/* bus specific DMA flags */
239 };
240 
241 int32_t mrsas_max_cap_maxxfer = 0x1000000;
242 
243 /*
244  * Fix for: Thunderbolt controller IO timeout when IO write size is 1MEG,
245  * Limit size to 256K
246  */
247 uint32_t mrsas_tbolt_max_cap_maxxfer = (512 * 512);
248 
249 /*
250  * cb_ops contains base level routines
251  */
252 static struct cb_ops mrsas_cb_ops = {
253 	mrsas_open,		/* open */
254 	mrsas_close,		/* close */
255 	nodev,			/* strategy */
256 	nodev,			/* print */
257 	nodev,			/* dump */
258 	nodev,			/* read */
259 	nodev,			/* write */
260 	mrsas_ioctl,		/* ioctl */
261 	nodev,			/* devmap */
262 	nodev,			/* mmap */
263 	nodev,			/* segmap */
264 	nochpoll,		/* poll */
265 	nodev,			/* cb_prop_op */
266 	0,			/* streamtab  */
267 	D_NEW | D_HOTPLUG,	/* cb_flag */
268 	CB_REV,			/* cb_rev */
269 	nodev,			/* cb_aread */
270 	nodev			/* cb_awrite */
271 };
272 
273 /*
274  * dev_ops contains configuration routines
275  */
276 static struct dev_ops mrsas_ops = {
277 	DEVO_REV,		/* rev, */
278 	0,			/* refcnt */
279 	mrsas_getinfo,		/* getinfo */
280 	nulldev,		/* identify */
281 	nulldev,		/* probe */
282 	mrsas_attach,		/* attach */
283 	mrsas_detach,		/* detach */
284 #ifdef	__sparc
285 	mrsas_reset,		/* reset */
286 #else	/* __sparc */
287 	nodev,
288 #endif	/* __sparc */
289 	&mrsas_cb_ops,		/* char/block ops */
290 	NULL,			/* bus ops */
291 	NULL,			/* power */
292 #ifdef __sparc
293 	ddi_quiesce_not_needed
294 #else	/* __sparc */
295 	mrsas_quiesce	/* quiesce */
296 #endif	/* __sparc */
297 };
298 
299 static struct modldrv modldrv = {
300 	&mod_driverops,		/* module type - driver */
301 	MRSAS_VERSION,
302 	&mrsas_ops,		/* driver ops */
303 };
304 
305 static struct modlinkage modlinkage = {
306 	MODREV_1,	/* ml_rev - must be MODREV_1 */
307 	&modldrv,	/* ml_linkage */
308 	NULL		/* end of driver linkage */
309 };
310 
311 static struct ddi_device_acc_attr endian_attr = {
312 	DDI_DEVICE_ATTR_V1,
313 	DDI_STRUCTURE_LE_ACC,
314 	DDI_STRICTORDER_ACC,
315 	DDI_DEFAULT_ACC
316 };
317 
318 /* Use the LSI Fast Path for the 2208 (tbolt) commands. */
319 unsigned int enable_fp = 1;
320 
321 
322 /*
323  * ************************************************************************** *
324  *									      *
325  *	   common entry points - for loadable kernel modules		      *
326  *									      *
327  * ************************************************************************** *
328  */
329 
330 /*
331  * _init - initialize a loadable module
332  * @void
333  *
334  * The driver should perform any one-time resource allocation or data
335  * initialization during driver loading in _init(). For example, the driver
336  * should initialize any mutexes global to the driver in this routine.
337  * The driver should not, however, use _init() to allocate or initialize
338  * anything that has to do with a particular instance of the device.
339  * Per-instance initialization must be done in attach().
340  */
341 int
342 _init(void)
343 {
344 	int ret;
345 
346 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
347 
348 	ret = ddi_soft_state_init(&mrsas_state,
349 	    sizeof (struct mrsas_instance), 0);
350 
351 	if (ret != DDI_SUCCESS) {
352 		cmn_err(CE_WARN, "mr_sas: could not init state");
353 		return (ret);
354 	}
355 
356 	if ((ret = scsi_hba_init(&modlinkage)) != DDI_SUCCESS) {
357 		cmn_err(CE_WARN, "mr_sas: could not init scsi hba");
358 		ddi_soft_state_fini(&mrsas_state);
359 		return (ret);
360 	}
361 
362 	ret = mod_install(&modlinkage);
363 
364 	if (ret != DDI_SUCCESS) {
365 		cmn_err(CE_WARN, "mr_sas: mod_install failed");
366 		scsi_hba_fini(&modlinkage);
367 		ddi_soft_state_fini(&mrsas_state);
368 	}
369 
370 	return (ret);
371 }
372 
373 /*
374  * _info - returns information about a loadable module.
375  * @void
376  *
377  * _info() is called to return module information. This is a typical entry
378  * point that does predefined role. It simply calls mod_info().
379  */
380 int
381 _info(struct modinfo *modinfop)
382 {
383 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
384 
385 	return (mod_info(&modlinkage, modinfop));
386 }
387 
388 /*
389  * _fini - prepare a loadable module for unloading
390  * @void
391  *
392  * In _fini(), the driver should release any resources that were allocated in
393  * _init(). The driver must remove itself from the system module list.
394  */
395 int
396 _fini(void)
397 {
398 	int ret;
399 
400 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
401 
402 	if ((ret = mod_remove(&modlinkage)) != DDI_SUCCESS) {
403 		con_log(CL_ANN1,
404 		    (CE_WARN, "_fini: mod_remove() failed, error 0x%X", ret));
405 		return (ret);
406 	}
407 
408 	scsi_hba_fini(&modlinkage);
409 	con_log(CL_DLEVEL1, (CE_NOTE, "_fini: scsi_hba_fini() done."));
410 
411 	ddi_soft_state_fini(&mrsas_state);
412 	con_log(CL_DLEVEL1, (CE_NOTE, "_fini: ddi_soft_state_fini() done."));
413 
414 	return (ret);
415 }
416 
417 
418 /*
419  * ************************************************************************** *
420  *									      *
421  *		 common entry points - for autoconfiguration		      *
422  *									      *
423  * ************************************************************************** *
424  */
425 /*
426  * attach - adds a device to the system as part of initialization
427  * @dip:
428  * @cmd:
429  *
430  * The kernel calls a driver's attach() entry point to attach an instance of
431  * a device (for MegaRAID, it is instance of a controller) or to resume
432  * operation for an instance of a device that has been suspended or has been
433  * shut down by the power management framework
434  * The attach() entry point typically includes the following types of
435  * processing:
436  * - allocate a soft-state structure for the device instance (for MegaRAID,
437  *   controller instance)
438  * - initialize per-instance mutexes
439  * - initialize condition variables
440  * - register the device's interrupts (for MegaRAID, controller's interrupts)
441  * - map the registers and memory of the device instance (for MegaRAID,
442  *   controller instance)
443  * - create minor device nodes for the device instance (for MegaRAID,
444  *   controller instance)
445  * - report that the device instance (for MegaRAID, controller instance) has
446  *   attached
447  */
448 static int
449 mrsas_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
450 {
451 	int		instance_no;
452 	int		nregs;
453 	int		i = 0;
454 	uint8_t		irq;
455 	uint16_t	vendor_id;
456 	uint16_t	device_id;
457 	uint16_t	subsysvid;
458 	uint16_t	subsysid;
459 	uint16_t	command;
460 	off_t		reglength = 0;
461 	int		intr_types = 0;
462 	char		*data;
463 
464 	scsi_hba_tran_t		*tran;
465 	ddi_dma_attr_t	tran_dma_attr;
466 	struct mrsas_instance	*instance;
467 
468 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
469 
470 	/* CONSTCOND */
471 	ASSERT(NO_COMPETING_THREADS);
472 
473 	instance_no = ddi_get_instance(dip);
474 
475 	/*
476 	 * check to see whether this device is in a DMA-capable slot.
477 	 */
478 	if (ddi_slaveonly(dip) == DDI_SUCCESS) {
479 		cmn_err(CE_WARN,
480 		    "mr_sas%d: Device in slave-only slot, unused",
481 		    instance_no);
482 		return (DDI_FAILURE);
483 	}
484 
485 	switch (cmd) {
486 	case DDI_ATTACH:
487 		/* allocate the soft state for the instance */
488 		if (ddi_soft_state_zalloc(mrsas_state, instance_no)
489 		    != DDI_SUCCESS) {
490 			cmn_err(CE_WARN,
491 			    "mr_sas%d: Failed to allocate soft state",
492 			    instance_no);
493 			return (DDI_FAILURE);
494 		}
495 
496 		instance = (struct mrsas_instance *)ddi_get_soft_state
497 		    (mrsas_state, instance_no);
498 
499 		if (instance == NULL) {
500 			cmn_err(CE_WARN,
501 			    "mr_sas%d: Bad soft state", instance_no);
502 			ddi_soft_state_free(mrsas_state, instance_no);
503 			return (DDI_FAILURE);
504 		}
505 
506 		instance->unroll.softs	= 1;
507 
508 		/* Setup the PCI configuration space handles */
509 		if (pci_config_setup(dip, &instance->pci_handle) !=
510 		    DDI_SUCCESS) {
511 			cmn_err(CE_WARN,
512 			    "mr_sas%d: pci config setup failed ",
513 			    instance_no);
514 
515 			ddi_soft_state_free(mrsas_state, instance_no);
516 			return (DDI_FAILURE);
517 		}
518 
519 		if (ddi_dev_nregs(dip, &nregs) != DDI_SUCCESS) {
520 			cmn_err(CE_WARN,
521 			    "mr_sas: failed to get registers.");
522 
523 			pci_config_teardown(&instance->pci_handle);
524 			ddi_soft_state_free(mrsas_state, instance_no);
525 			return (DDI_FAILURE);
526 		}
527 
528 		vendor_id = pci_config_get16(instance->pci_handle,
529 		    PCI_CONF_VENID);
530 		device_id = pci_config_get16(instance->pci_handle,
531 		    PCI_CONF_DEVID);
532 
533 		subsysvid = pci_config_get16(instance->pci_handle,
534 		    PCI_CONF_SUBVENID);
535 		subsysid = pci_config_get16(instance->pci_handle,
536 		    PCI_CONF_SUBSYSID);
537 
538 		pci_config_put16(instance->pci_handle, PCI_CONF_COMM,
539 		    (pci_config_get16(instance->pci_handle,
540 		    PCI_CONF_COMM) | PCI_COMM_ME));
541 		irq = pci_config_get8(instance->pci_handle,
542 		    PCI_CONF_ILINE);
543 
544 		con_log(CL_DLEVEL1, (CE_CONT, "mr_sas%d: "
545 		    "0x%x:0x%x 0x%x:0x%x, irq:%d drv-ver:%s",
546 		    instance_no, vendor_id, device_id, subsysvid,
547 		    subsysid, irq, MRSAS_VERSION));
548 
549 		/* enable bus-mastering */
550 		command = pci_config_get16(instance->pci_handle,
551 		    PCI_CONF_COMM);
552 
553 		if (!(command & PCI_COMM_ME)) {
554 			command |= PCI_COMM_ME;
555 
556 			pci_config_put16(instance->pci_handle,
557 			    PCI_CONF_COMM, command);
558 
559 			con_log(CL_ANN, (CE_CONT, "mr_sas%d: "
560 			    "enable bus-mastering", instance_no));
561 		} else {
562 			con_log(CL_DLEVEL1, (CE_CONT, "mr_sas%d: "
563 			    "bus-mastering already set", instance_no));
564 		}
565 
566 		/* initialize function pointers */
567 		switch (device_id) {
568 		case PCI_DEVICE_ID_LSI_TBOLT:
569 		case PCI_DEVICE_ID_LSI_INVADER:
570 			con_log(CL_ANN, (CE_NOTE,
571 			    "mr_sas: 2208 T.B. device detected"));
572 
573 			instance->func_ptr =
574 			    &mrsas_function_template_fusion;
575 			instance->tbolt = 1;
576 			break;
577 
578 		case PCI_DEVICE_ID_LSI_2108VDE:
579 		case PCI_DEVICE_ID_LSI_2108V:
580 			con_log(CL_ANN, (CE_NOTE,
581 			    "mr_sas: 2108 Liberator device detected"));
582 
583 			instance->func_ptr =
584 			    &mrsas_function_template_ppc;
585 			break;
586 
587 		default:
588 			cmn_err(CE_WARN,
589 			    "mr_sas: Invalid device detected");
590 
591 			pci_config_teardown(&instance->pci_handle);
592 			ddi_soft_state_free(mrsas_state, instance_no);
593 			return (DDI_FAILURE);
594 		}
595 
596 		instance->baseaddress = pci_config_get32(
597 		    instance->pci_handle, PCI_CONF_BASE0);
598 		instance->baseaddress &= 0x0fffc;
599 
600 		instance->dip		= dip;
601 		instance->vendor_id	= vendor_id;
602 		instance->device_id	= device_id;
603 		instance->subsysvid	= subsysvid;
604 		instance->subsysid	= subsysid;
605 		instance->instance	= instance_no;
606 
607 		/* Initialize FMA */
608 		instance->fm_capabilities = ddi_prop_get_int(
609 		    DDI_DEV_T_ANY, instance->dip, DDI_PROP_DONTPASS,
610 		    "fm-capable", DDI_FM_EREPORT_CAPABLE |
611 		    DDI_FM_ACCCHK_CAPABLE | DDI_FM_DMACHK_CAPABLE
612 		    | DDI_FM_ERRCB_CAPABLE);
613 
614 		mrsas_fm_init(instance);
615 
616 		/* Setup register map */
617 		if ((ddi_dev_regsize(instance->dip,
618 		    REGISTER_SET_IO_2108, &reglength) != DDI_SUCCESS) ||
619 		    reglength < MINIMUM_MFI_MEM_SZ) {
620 			goto fail_attach;
621 		}
622 		if (reglength > DEFAULT_MFI_MEM_SZ) {
623 			reglength = DEFAULT_MFI_MEM_SZ;
624 			con_log(CL_DLEVEL1, (CE_NOTE,
625 			    "mr_sas: register length to map is 0x%lx bytes",
626 			    reglength));
627 		}
628 		if (ddi_regs_map_setup(instance->dip,
629 		    REGISTER_SET_IO_2108, &instance->regmap, 0,
630 		    reglength, &endian_attr, &instance->regmap_handle)
631 		    != DDI_SUCCESS) {
632 			cmn_err(CE_WARN,
633 			    "mr_sas: couldn't map control registers");
634 			goto fail_attach;
635 		}
636 
637 		instance->unroll.regs = 1;
638 
639 		/*
640 		 * Disable Interrupt Now.
641 		 * Setup Software interrupt
642 		 */
643 		instance->func_ptr->disable_intr(instance);
644 
645 		if (ddi_prop_lookup_string(DDI_DEV_T_ANY, dip, 0,
646 		    "mrsas-enable-msi", &data) == DDI_SUCCESS) {
647 			if (strncmp(data, "no", 3) == 0) {
648 				msi_enable = 0;
649 				con_log(CL_ANN1, (CE_WARN,
650 				    "msi_enable = %d disabled", msi_enable));
651 			}
652 			ddi_prop_free(data);
653 		}
654 
655 		con_log(CL_DLEVEL1, (CE_NOTE, "msi_enable = %d", msi_enable));
656 
657 		if (ddi_prop_lookup_string(DDI_DEV_T_ANY, dip, 0,
658 		    "mrsas-enable-fp", &data) == DDI_SUCCESS) {
659 			if (strncmp(data, "no", 3) == 0) {
660 				enable_fp = 0;
661 				cmn_err(CE_NOTE,
662 				    "enable_fp = %d, Fast-Path disabled.\n",
663 				    enable_fp);
664 			}
665 
666 			ddi_prop_free(data);
667 		}
668 
669 		con_log(CL_DLEVEL1, (CE_NOTE, "enable_fp = %d\n", enable_fp));
670 
671 		/* Check for all supported interrupt types */
672 		if (ddi_intr_get_supported_types(
673 		    dip, &intr_types) != DDI_SUCCESS) {
674 			cmn_err(CE_WARN,
675 			    "ddi_intr_get_supported_types() failed");
676 			goto fail_attach;
677 		}
678 
679 		con_log(CL_DLEVEL1, (CE_NOTE,
680 		    "ddi_intr_get_supported_types() ret: 0x%x", intr_types));
681 
682 		/* Initialize and Setup Interrupt handler */
683 		if (msi_enable && (intr_types & DDI_INTR_TYPE_MSIX)) {
684 			if (mrsas_add_intrs(instance, DDI_INTR_TYPE_MSIX) !=
685 			    DDI_SUCCESS) {
686 				cmn_err(CE_WARN,
687 				    "MSIX interrupt query failed");
688 				goto fail_attach;
689 			}
690 			instance->intr_type = DDI_INTR_TYPE_MSIX;
691 		} else if (msi_enable && (intr_types & DDI_INTR_TYPE_MSI)) {
692 			if (mrsas_add_intrs(instance, DDI_INTR_TYPE_MSI) !=
693 			    DDI_SUCCESS) {
694 				cmn_err(CE_WARN,
695 				    "MSI interrupt query failed");
696 				goto fail_attach;
697 			}
698 			instance->intr_type = DDI_INTR_TYPE_MSI;
699 		} else if (intr_types & DDI_INTR_TYPE_FIXED) {
700 			msi_enable = 0;
701 			if (mrsas_add_intrs(instance, DDI_INTR_TYPE_FIXED) !=
702 			    DDI_SUCCESS) {
703 				cmn_err(CE_WARN,
704 				    "FIXED interrupt query failed");
705 				goto fail_attach;
706 			}
707 			instance->intr_type = DDI_INTR_TYPE_FIXED;
708 		} else {
709 			cmn_err(CE_WARN, "Device cannot "
710 			    "suppport either FIXED or MSI/X "
711 			    "interrupts");
712 			goto fail_attach;
713 		}
714 
715 		instance->unroll.intr = 1;
716 
717 		if (ddi_prop_lookup_string(DDI_DEV_T_ANY, dip, 0,
718 		    "mrsas-enable-ctio", &data) == DDI_SUCCESS) {
719 			if (strncmp(data, "no", 3) == 0) {
720 				ctio_enable = 0;
721 				con_log(CL_ANN1, (CE_WARN,
722 				    "ctio_enable = %d disabled", ctio_enable));
723 			}
724 			ddi_prop_free(data);
725 		}
726 
727 		con_log(CL_DLEVEL1, (CE_WARN, "ctio_enable = %d", ctio_enable));
728 
729 		/* setup the mfi based low level driver */
730 		if (mrsas_init_adapter(instance) != DDI_SUCCESS) {
731 			cmn_err(CE_WARN, "mr_sas: "
732 			    "could not initialize the low level driver");
733 
734 			goto fail_attach;
735 		}
736 
737 		/* Initialize all Mutex */
738 		INIT_LIST_HEAD(&instance->completed_pool_list);
739 		mutex_init(&instance->completed_pool_mtx, NULL,
740 		    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
741 
742 		mutex_init(&instance->sync_map_mtx, NULL,
743 		    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
744 
745 		mutex_init(&instance->app_cmd_pool_mtx, NULL,
746 		    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
747 
748 		mutex_init(&instance->config_dev_mtx, NULL,
749 		    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
750 
751 		mutex_init(&instance->cmd_pend_mtx, NULL,
752 		    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
753 
754 		mutex_init(&instance->ocr_flags_mtx, NULL,
755 		    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
756 
757 		mutex_init(&instance->int_cmd_mtx, NULL,
758 		    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
759 		cv_init(&instance->int_cmd_cv, NULL, CV_DRIVER, NULL);
760 
761 		mutex_init(&instance->cmd_pool_mtx, NULL,
762 		    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
763 
764 		mutex_init(&instance->reg_write_mtx, NULL,
765 		    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
766 
767 		if (instance->tbolt) {
768 			mutex_init(&instance->cmd_app_pool_mtx, NULL,
769 			    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
770 
771 			mutex_init(&instance->chip_mtx, NULL,
772 			    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
773 
774 		}
775 
776 		instance->unroll.mutexs = 1;
777 
778 		instance->timeout_id = (timeout_id_t)-1;
779 
780 		/* Register our soft-isr for highlevel interrupts. */
781 		instance->isr_level = instance->intr_pri;
782 		if (!(instance->tbolt)) {
783 			if (instance->isr_level == HIGH_LEVEL_INTR) {
784 				if (ddi_add_softintr(dip,
785 				    DDI_SOFTINT_HIGH,
786 				    &instance->soft_intr_id, NULL, NULL,
787 				    mrsas_softintr, (caddr_t)instance) !=
788 				    DDI_SUCCESS) {
789 					cmn_err(CE_WARN,
790 					    "Software ISR did not register");
791 
792 					goto fail_attach;
793 				}
794 
795 				instance->unroll.soft_isr = 1;
796 
797 			}
798 		}
799 
800 		instance->softint_running = 0;
801 
802 		/* Allocate a transport structure */
803 		tran = scsi_hba_tran_alloc(dip, SCSI_HBA_CANSLEEP);
804 
805 		if (tran == NULL) {
806 			cmn_err(CE_WARN,
807 			    "scsi_hba_tran_alloc failed");
808 			goto fail_attach;
809 		}
810 
811 		instance->tran = tran;
812 		instance->unroll.tran = 1;
813 
814 		tran->tran_hba_private	= instance;
815 		tran->tran_tgt_init	= mrsas_tran_tgt_init;
816 		tran->tran_tgt_probe	= scsi_hba_probe;
817 		tran->tran_tgt_free	= mrsas_tran_tgt_free;
818 		if (instance->tbolt) {
819 			tran->tran_init_pkt	=
820 			    mrsas_tbolt_tran_init_pkt;
821 			tran->tran_start	=
822 			    mrsas_tbolt_tran_start;
823 		} else {
824 			tran->tran_init_pkt	= mrsas_tran_init_pkt;
825 			tran->tran_start	= mrsas_tran_start;
826 		}
827 		tran->tran_abort	= mrsas_tran_abort;
828 		tran->tran_reset	= mrsas_tran_reset;
829 		tran->tran_getcap	= mrsas_tran_getcap;
830 		tran->tran_setcap	= mrsas_tran_setcap;
831 		tran->tran_destroy_pkt	= mrsas_tran_destroy_pkt;
832 		tran->tran_dmafree	= mrsas_tran_dmafree;
833 		tran->tran_sync_pkt	= mrsas_tran_sync_pkt;
834 		tran->tran_quiesce	= mrsas_tran_quiesce;
835 		tran->tran_unquiesce	= mrsas_tran_unquiesce;
836 		tran->tran_bus_config	= mrsas_tran_bus_config;
837 
838 		if (mrsas_relaxed_ordering)
839 			mrsas_generic_dma_attr.dma_attr_flags |=
840 			    DDI_DMA_RELAXED_ORDERING;
841 
842 
843 		tran_dma_attr = mrsas_generic_dma_attr;
844 		tran_dma_attr.dma_attr_sgllen = instance->max_num_sge;
845 
846 		/* Attach this instance of the hba */
847 		if (scsi_hba_attach_setup(dip, &tran_dma_attr, tran, 0)
848 		    != DDI_SUCCESS) {
849 			cmn_err(CE_WARN,
850 			    "scsi_hba_attach failed");
851 
852 			goto fail_attach;
853 		}
854 		instance->unroll.tranSetup = 1;
855 		con_log(CL_ANN1,
856 		    (CE_CONT, "scsi_hba_attach_setup()	done."));
857 
858 		/* create devctl node for cfgadm command */
859 		if (ddi_create_minor_node(dip, "devctl",
860 		    S_IFCHR, INST2DEVCTL(instance_no),
861 		    DDI_NT_SCSI_NEXUS, 0) == DDI_FAILURE) {
862 			cmn_err(CE_WARN,
863 			    "mr_sas: failed to create devctl node.");
864 
865 			goto fail_attach;
866 		}
867 
868 		instance->unroll.devctl = 1;
869 
870 		/* create scsi node for cfgadm command */
871 		if (ddi_create_minor_node(dip, "scsi", S_IFCHR,
872 		    INST2SCSI(instance_no), DDI_NT_SCSI_ATTACHMENT_POINT, 0) ==
873 		    DDI_FAILURE) {
874 			cmn_err(CE_WARN,
875 			    "mr_sas: failed to create scsi node.");
876 
877 			goto fail_attach;
878 		}
879 
880 		instance->unroll.scsictl = 1;
881 
882 		(void) sprintf(instance->iocnode, "%d:lsirdctl",
883 		    instance_no);
884 
885 		/*
886 		 * Create a node for applications
887 		 * for issuing ioctl to the driver.
888 		 */
889 		if (ddi_create_minor_node(dip, instance->iocnode,
890 		    S_IFCHR, INST2LSIRDCTL(instance_no), DDI_PSEUDO, 0) ==
891 		    DDI_FAILURE) {
892 			cmn_err(CE_WARN,
893 			    "mr_sas: failed to create ioctl node.");
894 
895 			goto fail_attach;
896 		}
897 
898 		instance->unroll.ioctl = 1;
899 
900 		/* Create a taskq to handle dr events */
901 		if ((instance->taskq = ddi_taskq_create(dip,
902 		    "mrsas_dr_taskq", 1, TASKQ_DEFAULTPRI, 0)) == NULL) {
903 			cmn_err(CE_WARN,
904 			    "mr_sas: failed to create taskq ");
905 			instance->taskq = NULL;
906 			goto fail_attach;
907 		}
908 		instance->unroll.taskq = 1;
909 		con_log(CL_ANN1, (CE_CONT, "ddi_taskq_create()	done."));
910 
911 		/* enable interrupt */
912 		instance->func_ptr->enable_intr(instance);
913 
914 		/* initiate AEN */
915 		if (start_mfi_aen(instance)) {
916 			cmn_err(CE_WARN,
917 			    "mr_sas: failed to initiate AEN.");
918 			goto fail_attach;
919 		}
920 		instance->unroll.aenPend = 1;
921 		con_log(CL_ANN1,
922 		    (CE_CONT, "AEN started for instance %d.", instance_no));
923 
924 		/* Finally! We are on the air.	*/
925 		ddi_report_dev(dip);
926 
927 		/* FMA handle checking. */
928 		if (mrsas_check_acc_handle(instance->regmap_handle) !=
929 		    DDI_SUCCESS) {
930 			goto fail_attach;
931 		}
932 		if (mrsas_check_acc_handle(instance->pci_handle) !=
933 		    DDI_SUCCESS) {
934 			goto fail_attach;
935 		}
936 
937 		instance->mr_ld_list =
938 		    kmem_zalloc(MRDRV_MAX_LD * sizeof (struct mrsas_ld),
939 		    KM_SLEEP);
940 		instance->unroll.ldlist_buff = 1;
941 
942 #ifdef PDSUPPORT
943 		if (instance->tbolt) {
944 			instance->mr_tbolt_pd_max = MRSAS_TBOLT_PD_TGT_MAX;
945 			instance->mr_tbolt_pd_list =
946 			    kmem_zalloc(MRSAS_TBOLT_GET_PD_MAX(instance) *
947 			    sizeof (struct mrsas_tbolt_pd), KM_SLEEP);
948 			ASSERT(instance->mr_tbolt_pd_list);
949 			for (i = 0; i < instance->mr_tbolt_pd_max; i++) {
950 				instance->mr_tbolt_pd_list[i].lun_type =
951 				    MRSAS_TBOLT_PD_LUN;
952 				instance->mr_tbolt_pd_list[i].dev_id =
953 				    (uint8_t)i;
954 			}
955 
956 			instance->unroll.pdlist_buff = 1;
957 		}
958 #endif
959 		break;
960 	case DDI_PM_RESUME:
961 		con_log(CL_ANN, (CE_NOTE, "mr_sas: DDI_PM_RESUME"));
962 		break;
963 	case DDI_RESUME:
964 		con_log(CL_ANN, (CE_NOTE, "mr_sas: DDI_RESUME"));
965 		break;
966 	default:
967 		con_log(CL_ANN,
968 		    (CE_WARN, "mr_sas: invalid attach cmd=%x", cmd));
969 		return (DDI_FAILURE);
970 	}
971 
972 
973 	con_log(CL_DLEVEL1,
974 	    (CE_NOTE, "mrsas_attach() return SUCCESS instance_num %d",
975 	    instance_no));
976 	return (DDI_SUCCESS);
977 
978 fail_attach:
979 
980 	mrsas_undo_resources(dip, instance);
981 
982 	mrsas_fm_ereport(instance, DDI_FM_DEVICE_NO_RESPONSE);
983 	ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
984 
985 	mrsas_fm_fini(instance);
986 
987 	pci_config_teardown(&instance->pci_handle);
988 	ddi_soft_state_free(mrsas_state, instance_no);
989 
990 	con_log(CL_ANN, (CE_WARN, "mr_sas: return failure from mrsas_attach"));
991 
992 	cmn_err(CE_WARN, "mrsas_attach() return FAILURE instance_num %d",
993 	    instance_no);
994 
995 	return (DDI_FAILURE);
996 }
997 
998 /*
999  * getinfo - gets device information
1000  * @dip:
1001  * @cmd:
1002  * @arg:
1003  * @resultp:
1004  *
1005  * The system calls getinfo() to obtain configuration information that only
1006  * the driver knows. The mapping of minor numbers to device instance is
1007  * entirely under the control of the driver. The system sometimes needs to ask
1008  * the driver which device a particular dev_t represents.
1009  * Given the device number return the devinfo pointer from the scsi_device
1010  * structure.
1011  */
1012 /*ARGSUSED*/
1013 static int
1014 mrsas_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd,  void *arg, void **resultp)
1015 {
1016 	int	rval;
1017 	int	mrsas_minor = getminor((dev_t)arg);
1018 
1019 	struct mrsas_instance	*instance;
1020 
1021 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1022 
1023 	switch (cmd) {
1024 		case DDI_INFO_DEVT2DEVINFO:
1025 			instance = (struct mrsas_instance *)
1026 			    ddi_get_soft_state(mrsas_state,
1027 			    MINOR2INST(mrsas_minor));
1028 
1029 			if (instance == NULL) {
1030 				*resultp = NULL;
1031 				rval = DDI_FAILURE;
1032 			} else {
1033 				*resultp = instance->dip;
1034 				rval = DDI_SUCCESS;
1035 			}
1036 			break;
1037 		case DDI_INFO_DEVT2INSTANCE:
1038 			*resultp = (void *)(intptr_t)
1039 			    (MINOR2INST(getminor((dev_t)arg)));
1040 			rval = DDI_SUCCESS;
1041 			break;
1042 		default:
1043 			*resultp = NULL;
1044 			rval = DDI_FAILURE;
1045 	}
1046 
1047 	return (rval);
1048 }
1049 
1050 /*
1051  * detach - detaches a device from the system
1052  * @dip: pointer to the device's dev_info structure
1053  * @cmd: type of detach
1054  *
1055  * A driver's detach() entry point is called to detach an instance of a device
1056  * that is bound to the driver. The entry point is called with the instance of
1057  * the device node to be detached and with DDI_DETACH, which is specified as
1058  * the cmd argument to the entry point.
1059  * This routine is called during driver unload. We free all the allocated
1060  * resources and call the corresponding LLD so that it can also release all
1061  * its resources.
1062  */
1063 static int
1064 mrsas_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
1065 {
1066 	int	instance_no;
1067 
1068 	struct mrsas_instance	*instance;
1069 
1070 	con_log(CL_ANN, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1071 
1072 
1073 	/* CONSTCOND */
1074 	ASSERT(NO_COMPETING_THREADS);
1075 
1076 	instance_no = ddi_get_instance(dip);
1077 
1078 	instance = (struct mrsas_instance *)ddi_get_soft_state(mrsas_state,
1079 	    instance_no);
1080 
1081 	if (!instance) {
1082 		cmn_err(CE_WARN,
1083 		    "mr_sas:%d could not get instance in detach",
1084 		    instance_no);
1085 
1086 		return (DDI_FAILURE);
1087 	}
1088 
1089 	con_log(CL_ANN, (CE_NOTE,
1090 	    "mr_sas%d: detaching device 0x%4x:0x%4x:0x%4x:0x%4x",
1091 	    instance_no, instance->vendor_id, instance->device_id,
1092 	    instance->subsysvid, instance->subsysid));
1093 
1094 	switch (cmd) {
1095 		case DDI_DETACH:
1096 			con_log(CL_ANN, (CE_NOTE,
1097 			    "mrsas_detach: DDI_DETACH"));
1098 
1099 			mutex_enter(&instance->config_dev_mtx);
1100 			if (instance->timeout_id != (timeout_id_t)-1) {
1101 				mutex_exit(&instance->config_dev_mtx);
1102 				(void) untimeout(instance->timeout_id);
1103 				instance->timeout_id = (timeout_id_t)-1;
1104 				mutex_enter(&instance->config_dev_mtx);
1105 				instance->unroll.timer = 0;
1106 			}
1107 			mutex_exit(&instance->config_dev_mtx);
1108 
1109 			if (instance->unroll.tranSetup == 1) {
1110 				if (scsi_hba_detach(dip) != DDI_SUCCESS) {
1111 					cmn_err(CE_WARN,
1112 					    "mr_sas2%d: failed to detach",
1113 					    instance_no);
1114 					return (DDI_FAILURE);
1115 				}
1116 				instance->unroll.tranSetup = 0;
1117 				con_log(CL_ANN1,
1118 				    (CE_CONT, "scsi_hba_dettach()  done."));
1119 			}
1120 
1121 			flush_cache(instance);
1122 
1123 			mrsas_undo_resources(dip, instance);
1124 
1125 			mrsas_fm_fini(instance);
1126 
1127 			pci_config_teardown(&instance->pci_handle);
1128 			ddi_soft_state_free(mrsas_state, instance_no);
1129 			break;
1130 
1131 		case DDI_PM_SUSPEND:
1132 			con_log(CL_ANN, (CE_NOTE,
1133 			    "mrsas_detach: DDI_PM_SUSPEND"));
1134 
1135 			break;
1136 		case DDI_SUSPEND:
1137 			con_log(CL_ANN, (CE_NOTE,
1138 			    "mrsas_detach: DDI_SUSPEND"));
1139 
1140 			break;
1141 		default:
1142 			con_log(CL_ANN, (CE_WARN,
1143 			    "invalid detach command:0x%x", cmd));
1144 			return (DDI_FAILURE);
1145 	}
1146 
1147 	return (DDI_SUCCESS);
1148 }
1149 
1150 
1151 static void
1152 mrsas_undo_resources(dev_info_t *dip, struct mrsas_instance *instance)
1153 {
1154 	int	instance_no;
1155 
1156 	con_log(CL_ANN, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1157 
1158 
1159 	instance_no = ddi_get_instance(dip);
1160 
1161 
1162 	if (instance->unroll.ioctl == 1) {
1163 		ddi_remove_minor_node(dip, instance->iocnode);
1164 		instance->unroll.ioctl = 0;
1165 	}
1166 
1167 	if (instance->unroll.scsictl == 1) {
1168 		ddi_remove_minor_node(dip, "scsi");
1169 		instance->unroll.scsictl = 0;
1170 	}
1171 
1172 	if (instance->unroll.devctl == 1) {
1173 		ddi_remove_minor_node(dip, "devctl");
1174 		instance->unroll.devctl = 0;
1175 	}
1176 
1177 	if (instance->unroll.tranSetup == 1) {
1178 		if (scsi_hba_detach(dip) != DDI_SUCCESS) {
1179 			cmn_err(CE_WARN,
1180 			    "mr_sas2%d: failed to detach", instance_no);
1181 			return;	 /* DDI_FAILURE */
1182 		}
1183 		instance->unroll.tranSetup = 0;
1184 		con_log(CL_ANN1, (CE_CONT, "scsi_hba_dettach()	done."));
1185 	}
1186 
1187 	if (instance->unroll.tran == 1)	 {
1188 		scsi_hba_tran_free(instance->tran);
1189 		instance->unroll.tran = 0;
1190 		con_log(CL_ANN1, (CE_CONT, "scsi_hba_tran_free()  done."));
1191 	}
1192 
1193 	if (instance->unroll.syncCmd == 1) {
1194 		if (instance->tbolt) {
1195 			if (abort_syncmap_cmd(instance,
1196 			    instance->map_update_cmd)) {
1197 				cmn_err(CE_WARN, "mrsas_detach: "
1198 				    "failed to abort previous syncmap command");
1199 			}
1200 
1201 			instance->unroll.syncCmd = 0;
1202 			con_log(CL_ANN1, (CE_CONT, "sync cmd aborted, done."));
1203 		}
1204 	}
1205 
1206 	if (instance->unroll.aenPend == 1) {
1207 		if (abort_aen_cmd(instance, instance->aen_cmd))
1208 			cmn_err(CE_WARN, "mrsas_detach: "
1209 			    "failed to abort prevous AEN command");
1210 
1211 		instance->unroll.aenPend = 0;
1212 		con_log(CL_ANN1, (CE_CONT, "aen cmd aborted, done."));
1213 		/* This means the controller is fully initialized and running */
1214 		/* Shutdown should be a last command to controller. */
1215 		/* shutdown_controller(); */
1216 	}
1217 
1218 
1219 	if (instance->unroll.timer == 1)	 {
1220 		if (instance->timeout_id != (timeout_id_t)-1) {
1221 			(void) untimeout(instance->timeout_id);
1222 			instance->timeout_id = (timeout_id_t)-1;
1223 
1224 			instance->unroll.timer = 0;
1225 		}
1226 	}
1227 
1228 	instance->func_ptr->disable_intr(instance);
1229 
1230 
1231 	if (instance->unroll.mutexs == 1) {
1232 		mutex_destroy(&instance->cmd_pool_mtx);
1233 		mutex_destroy(&instance->app_cmd_pool_mtx);
1234 		mutex_destroy(&instance->cmd_pend_mtx);
1235 		mutex_destroy(&instance->completed_pool_mtx);
1236 		mutex_destroy(&instance->sync_map_mtx);
1237 		mutex_destroy(&instance->int_cmd_mtx);
1238 		cv_destroy(&instance->int_cmd_cv);
1239 		mutex_destroy(&instance->config_dev_mtx);
1240 		mutex_destroy(&instance->ocr_flags_mtx);
1241 		mutex_destroy(&instance->reg_write_mtx);
1242 
1243 		if (instance->tbolt) {
1244 			mutex_destroy(&instance->cmd_app_pool_mtx);
1245 			mutex_destroy(&instance->chip_mtx);
1246 		}
1247 
1248 		instance->unroll.mutexs = 0;
1249 		con_log(CL_ANN1, (CE_CONT, "Destroy mutex & cv,	 done."));
1250 	}
1251 
1252 
1253 	if (instance->unroll.soft_isr == 1) {
1254 		ddi_remove_softintr(instance->soft_intr_id);
1255 		instance->unroll.soft_isr = 0;
1256 	}
1257 
1258 	if (instance->unroll.intr == 1) {
1259 		mrsas_rem_intrs(instance);
1260 		instance->unroll.intr = 0;
1261 	}
1262 
1263 
1264 	if (instance->unroll.taskq == 1)	 {
1265 		if (instance->taskq) {
1266 			ddi_taskq_destroy(instance->taskq);
1267 			instance->unroll.taskq = 0;
1268 		}
1269 
1270 	}
1271 
1272 	/*
1273 	 * free dma memory allocated for
1274 	 * cmds/frames/queues/driver version etc
1275 	 */
1276 	if (instance->unroll.verBuff == 1) {
1277 		(void) mrsas_free_dma_obj(instance, instance->drv_ver_dma_obj);
1278 		instance->unroll.verBuff = 0;
1279 	}
1280 
1281 	if (instance->unroll.pdlist_buff == 1)	{
1282 		if (instance->mr_tbolt_pd_list != NULL) {
1283 			kmem_free(instance->mr_tbolt_pd_list,
1284 			    MRSAS_TBOLT_GET_PD_MAX(instance) *
1285 			    sizeof (struct mrsas_tbolt_pd));
1286 		}
1287 
1288 		instance->mr_tbolt_pd_list = NULL;
1289 		instance->unroll.pdlist_buff = 0;
1290 	}
1291 
1292 	if (instance->unroll.ldlist_buff == 1)	{
1293 		if (instance->mr_ld_list != NULL) {
1294 			kmem_free(instance->mr_ld_list, MRDRV_MAX_LD
1295 			    * sizeof (struct mrsas_ld));
1296 		}
1297 
1298 		instance->mr_ld_list = NULL;
1299 		instance->unroll.ldlist_buff = 0;
1300 	}
1301 
1302 	if (instance->tbolt) {
1303 		if (instance->unroll.alloc_space_mpi2 == 1) {
1304 			free_space_for_mpi2(instance);
1305 			instance->unroll.alloc_space_mpi2 = 0;
1306 		}
1307 	} else {
1308 		if (instance->unroll.alloc_space_mfi == 1) {
1309 			free_space_for_mfi(instance);
1310 			instance->unroll.alloc_space_mfi = 0;
1311 		}
1312 	}
1313 
1314 	if (instance->unroll.regs == 1)	 {
1315 		ddi_regs_map_free(&instance->regmap_handle);
1316 		instance->unroll.regs = 0;
1317 		con_log(CL_ANN1, (CE_CONT, "ddi_regs_map_free()	 done."));
1318 	}
1319 }
1320 
1321 
1322 
1323 /*
1324  * ************************************************************************** *
1325  *									      *
1326  *	       common entry points - for character driver types		      *
1327  *									      *
1328  * ************************************************************************** *
1329  */
1330 /*
1331  * open - gets access to a device
1332  * @dev:
1333  * @openflags:
1334  * @otyp:
1335  * @credp:
1336  *
1337  * Access to a device by one or more application programs is controlled
1338  * through the open() and close() entry points. The primary function of
1339  * open() is to verify that the open request is allowed.
1340  */
1341 static	int
1342 mrsas_open(dev_t *dev, int openflags, int otyp, cred_t *credp)
1343 {
1344 	int	rval = 0;
1345 
1346 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1347 
1348 	/* Check root permissions */
1349 	if (drv_priv(credp) != 0) {
1350 		con_log(CL_ANN, (CE_WARN,
1351 		    "mr_sas: Non-root ioctl access denied!"));
1352 		return (EPERM);
1353 	}
1354 
1355 	/* Verify we are being opened as a character device */
1356 	if (otyp != OTYP_CHR) {
1357 		con_log(CL_ANN, (CE_WARN,
1358 		    "mr_sas: ioctl node must be a char node"));
1359 		return (EINVAL);
1360 	}
1361 
1362 	if (ddi_get_soft_state(mrsas_state, MINOR2INST(getminor(*dev)))
1363 	    == NULL) {
1364 		return (ENXIO);
1365 	}
1366 
1367 	if (scsi_hba_open) {
1368 		rval = scsi_hba_open(dev, openflags, otyp, credp);
1369 	}
1370 
1371 	return (rval);
1372 }
1373 
1374 /*
1375  * close - gives up access to a device
1376  * @dev:
1377  * @openflags:
1378  * @otyp:
1379  * @credp:
1380  *
1381  * close() should perform any cleanup necessary to finish using the minor
1382  * device, and prepare the device (and driver) to be opened again.
1383  */
1384 static	int
1385 mrsas_close(dev_t dev, int openflags, int otyp, cred_t *credp)
1386 {
1387 	int	rval = 0;
1388 
1389 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1390 
1391 	/* no need for locks! */
1392 
1393 	if (scsi_hba_close) {
1394 		rval = scsi_hba_close(dev, openflags, otyp, credp);
1395 	}
1396 
1397 	return (rval);
1398 }
1399 
1400 /*
1401  * ioctl - performs a range of I/O commands for character drivers
1402  * @dev:
1403  * @cmd:
1404  * @arg:
1405  * @mode:
1406  * @credp:
1407  * @rvalp:
1408  *
1409  * ioctl() routine must make sure that user data is copied into or out of the
1410  * kernel address space explicitly using copyin(), copyout(), ddi_copyin(),
1411  * and ddi_copyout(), as appropriate.
1412  * This is a wrapper routine to serialize access to the actual ioctl routine.
1413  * ioctl() should return 0 on success, or the appropriate error number. The
1414  * driver may also set the value returned to the calling process through rvalp.
1415  */
1416 
1417 static int
1418 mrsas_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *credp,
1419     int *rvalp)
1420 {
1421 	int	rval = 0;
1422 
1423 	struct mrsas_instance	*instance;
1424 	struct mrsas_ioctl	*ioctl;
1425 	struct mrsas_aen	aen;
1426 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1427 
1428 	instance = ddi_get_soft_state(mrsas_state, MINOR2INST(getminor(dev)));
1429 
1430 	if (instance == NULL) {
1431 		/* invalid minor number */
1432 		con_log(CL_ANN, (CE_WARN, "mr_sas: adapter not found."));
1433 		return (ENXIO);
1434 	}
1435 
1436 	ioctl = (struct mrsas_ioctl *)kmem_zalloc(sizeof (struct mrsas_ioctl),
1437 	    KM_SLEEP);
1438 	ASSERT(ioctl);
1439 
1440 	switch ((uint_t)cmd) {
1441 		case MRSAS_IOCTL_FIRMWARE:
1442 			if (ddi_copyin((void *)arg, ioctl,
1443 			    sizeof (struct mrsas_ioctl), mode)) {
1444 				con_log(CL_ANN, (CE_WARN, "mrsas_ioctl: "
1445 				    "ERROR IOCTL copyin"));
1446 				kmem_free(ioctl, sizeof (struct mrsas_ioctl));
1447 				return (EFAULT);
1448 			}
1449 
1450 			if (ioctl->control_code == MRSAS_DRIVER_IOCTL_COMMON) {
1451 				rval = handle_drv_ioctl(instance, ioctl, mode);
1452 			} else {
1453 				rval = handle_mfi_ioctl(instance, ioctl, mode);
1454 			}
1455 
1456 			if (ddi_copyout((void *)ioctl, (void *)arg,
1457 			    (sizeof (struct mrsas_ioctl) - 1), mode)) {
1458 				con_log(CL_ANN, (CE_WARN,
1459 				    "mrsas_ioctl: copy_to_user failed"));
1460 				rval = 1;
1461 			}
1462 
1463 			break;
1464 		case MRSAS_IOCTL_AEN:
1465 			if (ddi_copyin((void *) arg, &aen,
1466 			    sizeof (struct mrsas_aen), mode)) {
1467 				con_log(CL_ANN, (CE_WARN,
1468 				    "mrsas_ioctl: ERROR AEN copyin"));
1469 				kmem_free(ioctl, sizeof (struct mrsas_ioctl));
1470 				return (EFAULT);
1471 			}
1472 
1473 			rval = handle_mfi_aen(instance, &aen);
1474 
1475 			if (ddi_copyout((void *) &aen, (void *)arg,
1476 			    sizeof (struct mrsas_aen), mode)) {
1477 				con_log(CL_ANN, (CE_WARN,
1478 				    "mrsas_ioctl: copy_to_user failed"));
1479 				rval = 1;
1480 			}
1481 
1482 			break;
1483 		default:
1484 			rval = scsi_hba_ioctl(dev, cmd, arg,
1485 			    mode, credp, rvalp);
1486 
1487 			con_log(CL_DLEVEL1, (CE_NOTE, "mrsas_ioctl: "
1488 			    "scsi_hba_ioctl called, ret = %x.", rval));
1489 	}
1490 
1491 	kmem_free(ioctl, sizeof (struct mrsas_ioctl));
1492 	return (rval);
1493 }
1494 
1495 /*
1496  * ************************************************************************** *
1497  *									      *
1498  *		 common entry points - for block driver types		      *
1499  *									      *
1500  * ************************************************************************** *
1501  */
1502 #ifdef __sparc
1503 /*
1504  * reset - TBD
1505  * @dip:
1506  * @cmd:
1507  *
1508  * TBD
1509  */
1510 /*ARGSUSED*/
1511 static int
1512 mrsas_reset(dev_info_t *dip, ddi_reset_cmd_t cmd)
1513 {
1514 	int	instance_no;
1515 
1516 	struct mrsas_instance	*instance;
1517 
1518 	instance_no = ddi_get_instance(dip);
1519 	instance = (struct mrsas_instance *)ddi_get_soft_state
1520 	    (mrsas_state, instance_no);
1521 
1522 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1523 
1524 	if (!instance) {
1525 		con_log(CL_ANN, (CE_WARN, "mr_sas:%d could not get adapter "
1526 		    "in reset", instance_no));
1527 		return (DDI_FAILURE);
1528 	}
1529 
1530 	instance->func_ptr->disable_intr(instance);
1531 
1532 	con_log(CL_ANN1, (CE_CONT, "flushing cache for instance %d",
1533 	    instance_no));
1534 
1535 	flush_cache(instance);
1536 
1537 	return (DDI_SUCCESS);
1538 }
1539 #else /* __sparc */
1540 /*ARGSUSED*/
1541 static int
1542 mrsas_quiesce(dev_info_t *dip)
1543 {
1544 	int	instance_no;
1545 
1546 	struct mrsas_instance	*instance;
1547 
1548 	instance_no = ddi_get_instance(dip);
1549 	instance = (struct mrsas_instance *)ddi_get_soft_state
1550 	    (mrsas_state, instance_no);
1551 
1552 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1553 
1554 	if (!instance) {
1555 		con_log(CL_ANN1, (CE_WARN, "mr_sas:%d could not get adapter "
1556 		    "in quiesce", instance_no));
1557 		return (DDI_FAILURE);
1558 	}
1559 	if (instance->deadadapter || instance->adapterresetinprogress) {
1560 		con_log(CL_ANN1, (CE_WARN, "mr_sas:%d adapter is not in "
1561 		    "healthy state", instance_no));
1562 		return (DDI_FAILURE);
1563 	}
1564 
1565 	if (abort_aen_cmd(instance, instance->aen_cmd)) {
1566 		con_log(CL_ANN1, (CE_WARN, "mrsas_quiesce: "
1567 		    "failed to abort prevous AEN command QUIESCE"));
1568 	}
1569 
1570 	if (instance->tbolt) {
1571 		if (abort_syncmap_cmd(instance,
1572 		    instance->map_update_cmd)) {
1573 			cmn_err(CE_WARN,
1574 			    "mrsas_detach: failed to abort "
1575 			    "previous syncmap command");
1576 			return (DDI_FAILURE);
1577 		}
1578 	}
1579 
1580 	instance->func_ptr->disable_intr(instance);
1581 
1582 	con_log(CL_ANN1, (CE_CONT, "flushing cache for instance %d",
1583 	    instance_no));
1584 
1585 	flush_cache(instance);
1586 
1587 	if (wait_for_outstanding(instance)) {
1588 		con_log(CL_ANN1,
1589 		    (CE_CONT, "wait_for_outstanding: return FAIL.\n"));
1590 		return (DDI_FAILURE);
1591 	}
1592 	return (DDI_SUCCESS);
1593 }
1594 #endif	/* __sparc */
1595 
1596 /*
1597  * ************************************************************************** *
1598  *									      *
1599  *			    entry points (SCSI HBA)			      *
1600  *									      *
1601  * ************************************************************************** *
1602  */
1603 /*
1604  * tran_tgt_init - initialize a target device instance
1605  * @hba_dip:
1606  * @tgt_dip:
1607  * @tran:
1608  * @sd:
1609  *
1610  * The tran_tgt_init() entry point enables the HBA to allocate and initialize
1611  * any per-target resources. tran_tgt_init() also enables the HBA to qualify
1612  * the device's address as valid and supportable for that particular HBA.
1613  * By returning DDI_FAILURE, the instance of the target driver for that device
1614  * is not probed or attached.
1615  */
1616 /*ARGSUSED*/
1617 static int
1618 mrsas_tran_tgt_init(dev_info_t *hba_dip, dev_info_t *tgt_dip,
1619 		scsi_hba_tran_t *tran, struct scsi_device *sd)
1620 {
1621 	struct mrsas_instance *instance;
1622 	uint16_t tgt = sd->sd_address.a_target;
1623 	uint8_t lun = sd->sd_address.a_lun;
1624 	dev_info_t *child = NULL;
1625 
1626 	con_log(CL_DLEVEL2, (CE_NOTE, "mrsas_tgt_init target %d lun %d",
1627 	    tgt, lun));
1628 
1629 	instance = ADDR2MR(&sd->sd_address);
1630 
1631 	if (ndi_dev_is_persistent_node(tgt_dip) == 0) {
1632 		/*
1633 		 * If no persistent node exists, we don't allow .conf node
1634 		 * to be created.
1635 		 */
1636 		if ((child = mrsas_find_child(instance, tgt, lun)) != NULL) {
1637 			con_log(CL_DLEVEL2,
1638 			    (CE_NOTE, "mrsas_tgt_init find child ="
1639 			    " %p t = %d l = %d", (void *)child, tgt, lun));
1640 			if (ndi_merge_node(tgt_dip, mrsas_name_node) !=
1641 			    DDI_SUCCESS)
1642 				/* Create this .conf node */
1643 				return (DDI_SUCCESS);
1644 		}
1645 		con_log(CL_DLEVEL2, (CE_NOTE, "mrsas_tgt_init in ndi_per "
1646 		    "DDI_FAILURE t = %d l = %d", tgt, lun));
1647 		return (DDI_FAILURE);
1648 
1649 	}
1650 
1651 	con_log(CL_DLEVEL2, (CE_NOTE, "mrsas_tgt_init dev_dip %p tgt_dip %p",
1652 	    (void *)instance->mr_ld_list[tgt].dip, (void *)tgt_dip));
1653 
1654 	if (tgt < MRDRV_MAX_LD && lun == 0) {
1655 		if (instance->mr_ld_list[tgt].dip == NULL &&
1656 		    strcmp(ddi_driver_name(sd->sd_dev), "sd") == 0) {
1657 			mutex_enter(&instance->config_dev_mtx);
1658 			instance->mr_ld_list[tgt].dip = tgt_dip;
1659 			instance->mr_ld_list[tgt].lun_type = MRSAS_LD_LUN;
1660 			instance->mr_ld_list[tgt].flag = MRDRV_TGT_VALID;
1661 			mutex_exit(&instance->config_dev_mtx);
1662 		}
1663 	}
1664 
1665 #ifdef PDSUPPORT
1666 	else if (instance->tbolt) {
1667 		if (instance->mr_tbolt_pd_list[tgt].dip == NULL) {
1668 			mutex_enter(&instance->config_dev_mtx);
1669 			instance->mr_tbolt_pd_list[tgt].dip = tgt_dip;
1670 			instance->mr_tbolt_pd_list[tgt].flag =
1671 			    MRDRV_TGT_VALID;
1672 			mutex_exit(&instance->config_dev_mtx);
1673 			con_log(CL_ANN1, (CE_NOTE, "mrsas_tran_tgt_init:"
1674 			    "t%xl%x", tgt, lun));
1675 		}
1676 	}
1677 #endif
1678 
1679 	return (DDI_SUCCESS);
1680 }
1681 
1682 /*ARGSUSED*/
1683 static void
1684 mrsas_tran_tgt_free(dev_info_t *hba_dip, dev_info_t *tgt_dip,
1685     scsi_hba_tran_t *hba_tran, struct scsi_device *sd)
1686 {
1687 	struct mrsas_instance *instance;
1688 	int tgt = sd->sd_address.a_target;
1689 	int lun = sd->sd_address.a_lun;
1690 
1691 	instance = ADDR2MR(&sd->sd_address);
1692 
1693 	con_log(CL_DLEVEL2, (CE_NOTE, "tgt_free t = %d l = %d", tgt, lun));
1694 
1695 	if (tgt < MRDRV_MAX_LD && lun == 0) {
1696 		if (instance->mr_ld_list[tgt].dip == tgt_dip) {
1697 			mutex_enter(&instance->config_dev_mtx);
1698 			instance->mr_ld_list[tgt].dip = NULL;
1699 			mutex_exit(&instance->config_dev_mtx);
1700 		}
1701 	}
1702 
1703 #ifdef PDSUPPORT
1704 	else if (instance->tbolt) {
1705 		mutex_enter(&instance->config_dev_mtx);
1706 		instance->mr_tbolt_pd_list[tgt].dip = NULL;
1707 		mutex_exit(&instance->config_dev_mtx);
1708 		con_log(CL_ANN1, (CE_NOTE, "tgt_free: Setting dip = NULL"
1709 		    "for tgt:%x", tgt));
1710 	}
1711 #endif
1712 
1713 }
1714 
1715 dev_info_t *
1716 mrsas_find_child(struct mrsas_instance *instance, uint16_t tgt, uint8_t lun)
1717 {
1718 	dev_info_t *child = NULL;
1719 	char addr[SCSI_MAXNAMELEN];
1720 	char tmp[MAXNAMELEN];
1721 
1722 	(void) sprintf(addr, "%x,%x", tgt, lun);
1723 	for (child = ddi_get_child(instance->dip); child;
1724 	    child = ddi_get_next_sibling(child)) {
1725 
1726 		if (ndi_dev_is_persistent_node(child) == 0) {
1727 			continue;
1728 		}
1729 
1730 		if (mrsas_name_node(child, tmp, MAXNAMELEN) !=
1731 		    DDI_SUCCESS) {
1732 			continue;
1733 		}
1734 
1735 		if (strcmp(addr, tmp) == 0) {
1736 			break;
1737 		}
1738 	}
1739 	con_log(CL_DLEVEL2, (CE_NOTE, "mrsas_find_child: return child = %p",
1740 	    (void *)child));
1741 	return (child);
1742 }
1743 
1744 /*
1745  * mrsas_name_node -
1746  * @dip:
1747  * @name:
1748  * @len:
1749  */
1750 static int
1751 mrsas_name_node(dev_info_t *dip, char *name, int len)
1752 {
1753 	int tgt, lun;
1754 
1755 	tgt = ddi_prop_get_int(DDI_DEV_T_ANY, dip,
1756 	    DDI_PROP_DONTPASS, "target", -1);
1757 	con_log(CL_DLEVEL2, (CE_NOTE,
1758 	    "mrsas_name_node: dip %p tgt %d", (void *)dip, tgt));
1759 	if (tgt == -1) {
1760 		return (DDI_FAILURE);
1761 	}
1762 	lun = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
1763 	    "lun", -1);
1764 	con_log(CL_DLEVEL2,
1765 	    (CE_NOTE, "mrsas_name_node: tgt %d lun %d", tgt, lun));
1766 	if (lun == -1) {
1767 		return (DDI_FAILURE);
1768 	}
1769 	(void) snprintf(name, len, "%x,%x", tgt, lun);
1770 	return (DDI_SUCCESS);
1771 }
1772 
1773 /*
1774  * tran_init_pkt - allocate & initialize a scsi_pkt structure
1775  * @ap:
1776  * @pkt:
1777  * @bp:
1778  * @cmdlen:
1779  * @statuslen:
1780  * @tgtlen:
1781  * @flags:
1782  * @callback:
1783  *
1784  * The tran_init_pkt() entry point allocates and initializes a scsi_pkt
1785  * structure and DMA resources for a target driver request. The
1786  * tran_init_pkt() entry point is called when the target driver calls the
1787  * SCSA function scsi_init_pkt(). Each call of the tran_init_pkt() entry point
1788  * is a request to perform one or more of three possible services:
1789  *  - allocation and initialization of a scsi_pkt structure
1790  *  - allocation of DMA resources for data transfer
1791  *  - reallocation of DMA resources for the next portion of the data transfer
1792  */
1793 static struct scsi_pkt *
1794 mrsas_tran_init_pkt(struct scsi_address *ap, register struct scsi_pkt *pkt,
1795 	struct buf *bp, int cmdlen, int statuslen, int tgtlen,
1796 	int flags, int (*callback)(), caddr_t arg)
1797 {
1798 	struct scsa_cmd	*acmd;
1799 	struct mrsas_instance	*instance;
1800 	struct scsi_pkt	*new_pkt;
1801 
1802 	con_log(CL_DLEVEL1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1803 
1804 	instance = ADDR2MR(ap);
1805 
1806 	/* step #1 : pkt allocation */
1807 	if (pkt == NULL) {
1808 		pkt = scsi_hba_pkt_alloc(instance->dip, ap, cmdlen, statuslen,
1809 		    tgtlen, sizeof (struct scsa_cmd), callback, arg);
1810 		if (pkt == NULL) {
1811 			return (NULL);
1812 		}
1813 
1814 		acmd = PKT2CMD(pkt);
1815 
1816 		/*
1817 		 * Initialize the new pkt - we redundantly initialize
1818 		 * all the fields for illustrative purposes.
1819 		 */
1820 		acmd->cmd_pkt		= pkt;
1821 		acmd->cmd_flags		= 0;
1822 		acmd->cmd_scblen	= statuslen;
1823 		acmd->cmd_cdblen	= cmdlen;
1824 		acmd->cmd_dmahandle	= NULL;
1825 		acmd->cmd_ncookies	= 0;
1826 		acmd->cmd_cookie	= 0;
1827 		acmd->cmd_cookiecnt	= 0;
1828 		acmd->cmd_nwin		= 0;
1829 
1830 		pkt->pkt_address	= *ap;
1831 		pkt->pkt_comp		= (void (*)())NULL;
1832 		pkt->pkt_flags		= 0;
1833 		pkt->pkt_time		= 0;
1834 		pkt->pkt_resid		= 0;
1835 		pkt->pkt_state		= 0;
1836 		pkt->pkt_statistics	= 0;
1837 		pkt->pkt_reason		= 0;
1838 		new_pkt			= pkt;
1839 	} else {
1840 		acmd = PKT2CMD(pkt);
1841 		new_pkt = NULL;
1842 	}
1843 
1844 	/* step #2 : dma allocation/move */
1845 	if (bp && bp->b_bcount != 0) {
1846 		if (acmd->cmd_dmahandle == NULL) {
1847 			if (mrsas_dma_alloc(instance, pkt, bp, flags,
1848 			    callback) == DDI_FAILURE) {
1849 				if (new_pkt) {
1850 					scsi_hba_pkt_free(ap, new_pkt);
1851 				}
1852 				return ((struct scsi_pkt *)NULL);
1853 			}
1854 		} else {
1855 			if (mrsas_dma_move(instance, pkt, bp) == DDI_FAILURE) {
1856 				return ((struct scsi_pkt *)NULL);
1857 			}
1858 		}
1859 	}
1860 
1861 	return (pkt);
1862 }
1863 
1864 /*
1865  * tran_start - transport a SCSI command to the addressed target
1866  * @ap:
1867  * @pkt:
1868  *
1869  * The tran_start() entry point for a SCSI HBA driver is called to transport a
1870  * SCSI command to the addressed target. The SCSI command is described
1871  * entirely within the scsi_pkt structure, which the target driver allocated
1872  * through the HBA driver's tran_init_pkt() entry point. If the command
1873  * involves a data transfer, DMA resources must also have been allocated for
1874  * the scsi_pkt structure.
1875  *
1876  * Return Values :
1877  *	TRAN_BUSY - request queue is full, no more free scbs
1878  *	TRAN_ACCEPT - pkt has been submitted to the instance
1879  */
1880 static int
1881 mrsas_tran_start(struct scsi_address *ap, register struct scsi_pkt *pkt)
1882 {
1883 	uchar_t		cmd_done = 0;
1884 
1885 	struct mrsas_instance	*instance = ADDR2MR(ap);
1886 	struct mrsas_cmd	*cmd;
1887 
1888 	con_log(CL_DLEVEL1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1889 	if (instance->deadadapter == 1) {
1890 		con_log(CL_ANN1, (CE_WARN,
1891 		    "mrsas_tran_start: return TRAN_FATAL_ERROR "
1892 		    "for IO, as the HBA doesnt take any more IOs"));
1893 		if (pkt) {
1894 			pkt->pkt_reason		= CMD_DEV_GONE;
1895 			pkt->pkt_statistics	= STAT_DISCON;
1896 		}
1897 		return (TRAN_FATAL_ERROR);
1898 	}
1899 
1900 	if (instance->adapterresetinprogress) {
1901 		con_log(CL_ANN1, (CE_NOTE, "mrsas_tran_start: Reset flag set, "
1902 		    "returning mfi_pkt and setting TRAN_BUSY\n"));
1903 		return (TRAN_BUSY);
1904 	}
1905 
1906 	con_log(CL_ANN1, (CE_CONT, "chkpnt:%s:%d:SCSI CDB[0]=0x%x time:%x",
1907 	    __func__, __LINE__, pkt->pkt_cdbp[0], pkt->pkt_time));
1908 
1909 	pkt->pkt_reason	= CMD_CMPLT;
1910 	*pkt->pkt_scbp = STATUS_GOOD; /* clear arq scsi_status */
1911 
1912 	cmd = build_cmd(instance, ap, pkt, &cmd_done);
1913 
1914 	/*
1915 	 * Check if the command is already completed by the mrsas_build_cmd()
1916 	 * routine. In which case the busy_flag would be clear and scb will be
1917 	 * NULL and appropriate reason provided in pkt_reason field
1918 	 */
1919 	if (cmd_done) {
1920 		pkt->pkt_reason = CMD_CMPLT;
1921 		pkt->pkt_scbp[0] = STATUS_GOOD;
1922 		pkt->pkt_state |= STATE_GOT_BUS | STATE_GOT_TARGET
1923 		    | STATE_SENT_CMD;
1924 		if (((pkt->pkt_flags & FLAG_NOINTR) == 0) && pkt->pkt_comp) {
1925 			(*pkt->pkt_comp)(pkt);
1926 		}
1927 
1928 		return (TRAN_ACCEPT);
1929 	}
1930 
1931 	if (cmd == NULL) {
1932 		return (TRAN_BUSY);
1933 	}
1934 
1935 	if ((pkt->pkt_flags & FLAG_NOINTR) == 0) {
1936 		if (instance->fw_outstanding > instance->max_fw_cmds) {
1937 			con_log(CL_ANN, (CE_CONT, "mr_sas:Firmware busy"));
1938 			DTRACE_PROBE2(start_tran_err,
1939 			    uint16_t, instance->fw_outstanding,
1940 			    uint16_t, instance->max_fw_cmds);
1941 			return_mfi_pkt(instance, cmd);
1942 			return (TRAN_BUSY);
1943 		}
1944 
1945 		/* Synchronize the Cmd frame for the controller */
1946 		(void) ddi_dma_sync(cmd->frame_dma_obj.dma_handle, 0, 0,
1947 		    DDI_DMA_SYNC_FORDEV);
1948 		con_log(CL_ANN, (CE_CONT, "issue_cmd_ppc: SCSI CDB[0]=0x%x"
1949 		    "cmd->index:%x\n", pkt->pkt_cdbp[0], cmd->index));
1950 		instance->func_ptr->issue_cmd(cmd, instance);
1951 
1952 	} else {
1953 		struct mrsas_header *hdr = &cmd->frame->hdr;
1954 
1955 		instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd);
1956 
1957 		pkt->pkt_reason		= CMD_CMPLT;
1958 		pkt->pkt_statistics	= 0;
1959 		pkt->pkt_state |= STATE_XFERRED_DATA | STATE_GOT_STATUS;
1960 
1961 		switch (ddi_get8(cmd->frame_dma_obj.acc_handle,
1962 		    &hdr->cmd_status)) {
1963 		case MFI_STAT_OK:
1964 			pkt->pkt_scbp[0] = STATUS_GOOD;
1965 			break;
1966 
1967 		case MFI_STAT_SCSI_DONE_WITH_ERROR:
1968 			con_log(CL_ANN, (CE_CONT,
1969 			    "mrsas_tran_start: scsi done with error"));
1970 			pkt->pkt_reason	= CMD_CMPLT;
1971 			pkt->pkt_statistics = 0;
1972 
1973 			((struct scsi_status *)pkt->pkt_scbp)->sts_chk = 1;
1974 			break;
1975 
1976 		case MFI_STAT_DEVICE_NOT_FOUND:
1977 			con_log(CL_ANN, (CE_CONT,
1978 			    "mrsas_tran_start: device not found error"));
1979 			pkt->pkt_reason		= CMD_DEV_GONE;
1980 			pkt->pkt_statistics	= STAT_DISCON;
1981 			break;
1982 
1983 		default:
1984 			((struct scsi_status *)pkt->pkt_scbp)->sts_busy = 1;
1985 		}
1986 
1987 		(void) mrsas_common_check(instance, cmd);
1988 		DTRACE_PROBE2(start_nointr_done, uint8_t, hdr->cmd,
1989 		    uint8_t, hdr->cmd_status);
1990 		return_mfi_pkt(instance, cmd);
1991 
1992 		if (pkt->pkt_comp) {
1993 			(*pkt->pkt_comp)(pkt);
1994 		}
1995 
1996 	}
1997 
1998 	return (TRAN_ACCEPT);
1999 }
2000 
2001 /*
2002  * tran_abort - Abort any commands that are currently in transport
2003  * @ap:
2004  * @pkt:
2005  *
2006  * The tran_abort() entry point for a SCSI HBA driver is called to abort any
2007  * commands that are currently in transport for a particular target. This entry
2008  * point is called when a target driver calls scsi_abort(). The tran_abort()
2009  * entry point should attempt to abort the command denoted by the pkt
2010  * parameter. If the pkt parameter is NULL, tran_abort() should attempt to
2011  * abort all outstanding commands in the transport layer for the particular
2012  * target or logical unit.
2013  */
2014 /*ARGSUSED*/
2015 static int
2016 mrsas_tran_abort(struct scsi_address *ap, struct scsi_pkt *pkt)
2017 {
2018 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
2019 
2020 	/* abort command not supported by H/W */
2021 
2022 	return (DDI_FAILURE);
2023 }
2024 
2025 /*
2026  * tran_reset - reset either the SCSI bus or target
2027  * @ap:
2028  * @level:
2029  *
2030  * The tran_reset() entry point for a SCSI HBA driver is called to reset either
2031  * the SCSI bus or a particular SCSI target device. This entry point is called
2032  * when a target driver calls scsi_reset(). The tran_reset() entry point must
2033  * reset the SCSI bus if level is RESET_ALL. If level is RESET_TARGET, just the
2034  * particular target or logical unit must be reset.
2035  */
2036 /*ARGSUSED*/
2037 static int
2038 mrsas_tran_reset(struct scsi_address *ap, int level)
2039 {
2040 	struct mrsas_instance *instance = ADDR2MR(ap);
2041 
2042 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
2043 
2044 	if (wait_for_outstanding(instance)) {
2045 		con_log(CL_ANN1,
2046 		    (CE_CONT, "wait_for_outstanding: return FAIL.\n"));
2047 		return (DDI_FAILURE);
2048 	} else {
2049 		return (DDI_SUCCESS);
2050 	}
2051 }
2052 
2053 /*
2054  * tran_getcap - get one of a set of SCSA-defined capabilities
2055  * @ap:
2056  * @cap:
2057  * @whom:
2058  *
2059  * The target driver can request the current setting of the capability for a
2060  * particular target by setting the whom parameter to nonzero. A whom value of
2061  * zero indicates a request for the current setting of the general capability
2062  * for the SCSI bus or for adapter hardware. The tran_getcap() should return -1
2063  * for undefined capabilities or the current value of the requested capability.
2064  */
2065 /*ARGSUSED*/
2066 static int
2067 mrsas_tran_getcap(struct scsi_address *ap, char *cap, int whom)
2068 {
2069 	int	rval = 0;
2070 
2071 	struct mrsas_instance	*instance = ADDR2MR(ap);
2072 
2073 	con_log(CL_DLEVEL2, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
2074 
2075 	/* we do allow inquiring about capabilities for other targets */
2076 	if (cap == NULL) {
2077 		return (-1);
2078 	}
2079 
2080 	switch (scsi_hba_lookup_capstr(cap)) {
2081 	case SCSI_CAP_DMA_MAX:
2082 		if (instance->tbolt) {
2083 			/* Limit to 256k max transfer */
2084 			rval = mrsas_tbolt_max_cap_maxxfer;
2085 		} else {
2086 			/* Limit to 16MB max transfer */
2087 			rval = mrsas_max_cap_maxxfer;
2088 		}
2089 		break;
2090 	case SCSI_CAP_MSG_OUT:
2091 		rval = 1;
2092 		break;
2093 	case SCSI_CAP_DISCONNECT:
2094 		rval = 0;
2095 		break;
2096 	case SCSI_CAP_SYNCHRONOUS:
2097 		rval = 0;
2098 		break;
2099 	case SCSI_CAP_WIDE_XFER:
2100 		rval = 1;
2101 		break;
2102 	case SCSI_CAP_TAGGED_QING:
2103 		rval = 1;
2104 		break;
2105 	case SCSI_CAP_UNTAGGED_QING:
2106 		rval = 1;
2107 		break;
2108 	case SCSI_CAP_PARITY:
2109 		rval = 1;
2110 		break;
2111 	case SCSI_CAP_INITIATOR_ID:
2112 		rval = instance->init_id;
2113 		break;
2114 	case SCSI_CAP_ARQ:
2115 		rval = 1;
2116 		break;
2117 	case SCSI_CAP_LINKED_CMDS:
2118 		rval = 0;
2119 		break;
2120 	case SCSI_CAP_RESET_NOTIFICATION:
2121 		rval = 1;
2122 		break;
2123 	case SCSI_CAP_GEOMETRY:
2124 		rval = -1;
2125 
2126 		break;
2127 	default:
2128 		con_log(CL_DLEVEL2, (CE_NOTE, "Default cap coming 0x%x",
2129 		    scsi_hba_lookup_capstr(cap)));
2130 		rval = -1;
2131 		break;
2132 	}
2133 
2134 	return (rval);
2135 }
2136 
2137 /*
2138  * tran_setcap - set one of a set of SCSA-defined capabilities
2139  * @ap:
2140  * @cap:
2141  * @value:
2142  * @whom:
2143  *
2144  * The target driver might request that the new value be set for a particular
2145  * target by setting the whom parameter to nonzero. A whom value of zero
2146  * means that request is to set the new value for the SCSI bus or for adapter
2147  * hardware in general.
2148  * The tran_setcap() should return the following values as appropriate:
2149  * - -1 for undefined capabilities
2150  * - 0 if the HBA driver cannot set the capability to the requested value
2151  * - 1 if the HBA driver is able to set the capability to the requested value
2152  */
2153 /*ARGSUSED*/
2154 static int
2155 mrsas_tran_setcap(struct scsi_address *ap, char *cap, int value, int whom)
2156 {
2157 	int		rval = 1;
2158 
2159 	con_log(CL_DLEVEL2, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
2160 
2161 	/* We don't allow setting capabilities for other targets */
2162 	if (cap == NULL || whom == 0) {
2163 		return (-1);
2164 	}
2165 
2166 	switch (scsi_hba_lookup_capstr(cap)) {
2167 		case SCSI_CAP_DMA_MAX:
2168 		case SCSI_CAP_MSG_OUT:
2169 		case SCSI_CAP_PARITY:
2170 		case SCSI_CAP_LINKED_CMDS:
2171 		case SCSI_CAP_RESET_NOTIFICATION:
2172 		case SCSI_CAP_DISCONNECT:
2173 		case SCSI_CAP_SYNCHRONOUS:
2174 		case SCSI_CAP_UNTAGGED_QING:
2175 		case SCSI_CAP_WIDE_XFER:
2176 		case SCSI_CAP_INITIATOR_ID:
2177 		case SCSI_CAP_ARQ:
2178 			/*
2179 			 * None of these are settable via
2180 			 * the capability interface.
2181 			 */
2182 			break;
2183 		case SCSI_CAP_TAGGED_QING:
2184 			rval = 1;
2185 			break;
2186 		case SCSI_CAP_SECTOR_SIZE:
2187 			rval = 1;
2188 			break;
2189 
2190 		case SCSI_CAP_TOTAL_SECTORS:
2191 			rval = 1;
2192 			break;
2193 		default:
2194 			rval = -1;
2195 			break;
2196 	}
2197 
2198 	return (rval);
2199 }
2200 
2201 /*
2202  * tran_destroy_pkt - deallocate scsi_pkt structure
2203  * @ap:
2204  * @pkt:
2205  *
2206  * The tran_destroy_pkt() entry point is the HBA driver function that
2207  * deallocates scsi_pkt structures. The tran_destroy_pkt() entry point is
2208  * called when the target driver calls scsi_destroy_pkt(). The
2209  * tran_destroy_pkt() entry point must free any DMA resources that have been
2210  * allocated for the packet. An implicit DMA synchronization occurs if the
2211  * DMA resources are freed and any cached data remains after the completion
2212  * of the transfer.
2213  */
2214 static void
2215 mrsas_tran_destroy_pkt(struct scsi_address *ap, struct scsi_pkt *pkt)
2216 {
2217 	struct scsa_cmd *acmd = PKT2CMD(pkt);
2218 
2219 	con_log(CL_DLEVEL2, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
2220 
2221 	if (acmd->cmd_flags & CFLAG_DMAVALID) {
2222 		acmd->cmd_flags &= ~CFLAG_DMAVALID;
2223 
2224 		(void) ddi_dma_unbind_handle(acmd->cmd_dmahandle);
2225 
2226 		ddi_dma_free_handle(&acmd->cmd_dmahandle);
2227 
2228 		acmd->cmd_dmahandle = NULL;
2229 	}
2230 
2231 	/* free the pkt */
2232 	scsi_hba_pkt_free(ap, pkt);
2233 }
2234 
2235 /*
2236  * tran_dmafree - deallocates DMA resources
2237  * @ap:
2238  * @pkt:
2239  *
2240  * The tran_dmafree() entry point deallocates DMAQ resources that have been
2241  * allocated for a scsi_pkt structure. The tran_dmafree() entry point is
2242  * called when the target driver calls scsi_dmafree(). The tran_dmafree() must
2243  * free only DMA resources allocated for a scsi_pkt structure, not the
2244  * scsi_pkt itself. When DMA resources are freed, a DMA synchronization is
2245  * implicitly performed.
2246  */
2247 /*ARGSUSED*/
2248 static void
2249 mrsas_tran_dmafree(struct scsi_address *ap, struct scsi_pkt *pkt)
2250 {
2251 	register struct scsa_cmd *acmd = PKT2CMD(pkt);
2252 
2253 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
2254 
2255 	if (acmd->cmd_flags & CFLAG_DMAVALID) {
2256 		acmd->cmd_flags &= ~CFLAG_DMAVALID;
2257 
2258 		(void) ddi_dma_unbind_handle(acmd->cmd_dmahandle);
2259 
2260 		ddi_dma_free_handle(&acmd->cmd_dmahandle);
2261 
2262 		acmd->cmd_dmahandle = NULL;
2263 	}
2264 }
2265 
2266 /*
2267  * tran_sync_pkt - synchronize the DMA object allocated
2268  * @ap:
2269  * @pkt:
2270  *
2271  * The tran_sync_pkt() entry point synchronizes the DMA object allocated for
2272  * the scsi_pkt structure before or after a DMA transfer. The tran_sync_pkt()
2273  * entry point is called when the target driver calls scsi_sync_pkt(). If the
2274  * data transfer direction is a DMA read from device to memory, tran_sync_pkt()
2275  * must synchronize the CPU's view of the data. If the data transfer direction
2276  * is a DMA write from memory to device, tran_sync_pkt() must synchronize the
2277  * device's view of the data.
2278  */
2279 /*ARGSUSED*/
2280 static void
2281 mrsas_tran_sync_pkt(struct scsi_address *ap, struct scsi_pkt *pkt)
2282 {
2283 	register struct scsa_cmd	*acmd = PKT2CMD(pkt);
2284 
2285 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
2286 
2287 	if (acmd->cmd_flags & CFLAG_DMAVALID) {
2288 		(void) ddi_dma_sync(acmd->cmd_dmahandle, acmd->cmd_dma_offset,
2289 		    acmd->cmd_dma_len, (acmd->cmd_flags & CFLAG_DMASEND) ?
2290 		    DDI_DMA_SYNC_FORDEV : DDI_DMA_SYNC_FORCPU);
2291 	}
2292 }
2293 
2294 /*ARGSUSED*/
2295 static int
2296 mrsas_tran_quiesce(dev_info_t *dip)
2297 {
2298 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
2299 
2300 	return (1);
2301 }
2302 
2303 /*ARGSUSED*/
2304 static int
2305 mrsas_tran_unquiesce(dev_info_t *dip)
2306 {
2307 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
2308 
2309 	return (1);
2310 }
2311 
2312 
2313 /*
2314  * mrsas_isr(caddr_t)
2315  *
2316  * The Interrupt Service Routine
2317  *
2318  * Collect status for all completed commands and do callback
2319  *
2320  */
2321 static uint_t
2322 mrsas_isr(struct mrsas_instance *instance)
2323 {
2324 	int		need_softintr;
2325 	uint32_t	producer;
2326 	uint32_t	consumer;
2327 	uint32_t	context;
2328 	int		retval;
2329 
2330 	struct mrsas_cmd	*cmd;
2331 	struct mrsas_header	*hdr;
2332 	struct scsi_pkt		*pkt;
2333 
2334 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
2335 	ASSERT(instance);
2336 	if (instance->tbolt) {
2337 		mutex_enter(&instance->chip_mtx);
2338 		if ((instance->intr_type == DDI_INTR_TYPE_FIXED) &&
2339 		    !(instance->func_ptr->intr_ack(instance))) {
2340 			mutex_exit(&instance->chip_mtx);
2341 			return (DDI_INTR_UNCLAIMED);
2342 		}
2343 		retval = mr_sas_tbolt_process_outstanding_cmd(instance);
2344 		mutex_exit(&instance->chip_mtx);
2345 		return (retval);
2346 	} else {
2347 		if ((instance->intr_type == DDI_INTR_TYPE_FIXED) &&
2348 		    !instance->func_ptr->intr_ack(instance)) {
2349 			return (DDI_INTR_UNCLAIMED);
2350 		}
2351 	}
2352 
2353 	(void) ddi_dma_sync(instance->mfi_internal_dma_obj.dma_handle,
2354 	    0, 0, DDI_DMA_SYNC_FORCPU);
2355 
2356 	if (mrsas_check_dma_handle(instance->mfi_internal_dma_obj.dma_handle)
2357 	    != DDI_SUCCESS) {
2358 		mrsas_fm_ereport(instance, DDI_FM_DEVICE_NO_RESPONSE);
2359 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
2360 		con_log(CL_ANN1, (CE_WARN,
2361 		    "mr_sas_isr(): FMA check, returning DDI_INTR_UNCLAIMED"));
2362 		return (DDI_INTR_CLAIMED);
2363 	}
2364 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
2365 
2366 #ifdef OCRDEBUG
2367 	if (debug_consecutive_timeout_after_ocr_g == 1) {
2368 		con_log(CL_ANN1, (CE_NOTE,
2369 		    "simulating consecutive timeout after ocr"));
2370 		return (DDI_INTR_CLAIMED);
2371 	}
2372 #endif
2373 
2374 	mutex_enter(&instance->completed_pool_mtx);
2375 	mutex_enter(&instance->cmd_pend_mtx);
2376 
2377 	producer = ddi_get32(instance->mfi_internal_dma_obj.acc_handle,
2378 	    instance->producer);
2379 	consumer = ddi_get32(instance->mfi_internal_dma_obj.acc_handle,
2380 	    instance->consumer);
2381 
2382 	con_log(CL_ANN, (CE_CONT, " producer %x consumer %x ",
2383 	    producer, consumer));
2384 	if (producer == consumer) {
2385 		con_log(CL_ANN, (CE_WARN, "producer ==	consumer case"));
2386 		DTRACE_PROBE2(isr_pc_err, uint32_t, producer,
2387 		    uint32_t, consumer);
2388 		mutex_exit(&instance->cmd_pend_mtx);
2389 		mutex_exit(&instance->completed_pool_mtx);
2390 		return (DDI_INTR_CLAIMED);
2391 	}
2392 
2393 	while (consumer != producer) {
2394 		context = ddi_get32(instance->mfi_internal_dma_obj.acc_handle,
2395 		    &instance->reply_queue[consumer]);
2396 		cmd = instance->cmd_list[context];
2397 
2398 		if (cmd->sync_cmd == MRSAS_TRUE) {
2399 			hdr = (struct mrsas_header *)&cmd->frame->hdr;
2400 			if (hdr) {
2401 				mlist_del_init(&cmd->list);
2402 			}
2403 		} else {
2404 			pkt = cmd->pkt;
2405 			if (pkt) {
2406 				mlist_del_init(&cmd->list);
2407 			}
2408 		}
2409 
2410 		mlist_add_tail(&cmd->list, &instance->completed_pool_list);
2411 
2412 		consumer++;
2413 		if (consumer == (instance->max_fw_cmds + 1)) {
2414 			consumer = 0;
2415 		}
2416 	}
2417 	ddi_put32(instance->mfi_internal_dma_obj.acc_handle,
2418 	    instance->consumer, consumer);
2419 	mutex_exit(&instance->cmd_pend_mtx);
2420 	mutex_exit(&instance->completed_pool_mtx);
2421 
2422 	(void) ddi_dma_sync(instance->mfi_internal_dma_obj.dma_handle,
2423 	    0, 0, DDI_DMA_SYNC_FORDEV);
2424 
2425 	if (instance->softint_running) {
2426 		need_softintr = 0;
2427 	} else {
2428 		need_softintr = 1;
2429 	}
2430 
2431 	if (instance->isr_level == HIGH_LEVEL_INTR) {
2432 		if (need_softintr) {
2433 			ddi_trigger_softintr(instance->soft_intr_id);
2434 		}
2435 	} else {
2436 		/*
2437 		 * Not a high-level interrupt, therefore call the soft level
2438 		 * interrupt explicitly
2439 		 */
2440 		(void) mrsas_softintr(instance);
2441 	}
2442 
2443 	return (DDI_INTR_CLAIMED);
2444 }
2445 
2446 
2447 /*
2448  * ************************************************************************** *
2449  *									      *
2450  *				    libraries				      *
2451  *									      *
2452  * ************************************************************************** *
2453  */
2454 /*
2455  * get_mfi_pkt : Get a command from the free pool
2456  * After successful allocation, the caller of this routine
2457  * must clear the frame buffer (memset to zero) before
2458  * using the packet further.
2459  *
2460  * ***** Note *****
2461  * After clearing the frame buffer the context id of the
2462  * frame buffer SHOULD be restored back.
2463  */
2464 static struct mrsas_cmd *
2465 get_mfi_pkt(struct mrsas_instance *instance)
2466 {
2467 	mlist_t			*head = &instance->cmd_pool_list;
2468 	struct mrsas_cmd	*cmd = NULL;
2469 
2470 	mutex_enter(&instance->cmd_pool_mtx);
2471 
2472 	if (!mlist_empty(head)) {
2473 		cmd = mlist_entry(head->next, struct mrsas_cmd, list);
2474 		mlist_del_init(head->next);
2475 	}
2476 	if (cmd != NULL) {
2477 		cmd->pkt = NULL;
2478 		cmd->retry_count_for_ocr = 0;
2479 		cmd->drv_pkt_time = 0;
2480 
2481 	}
2482 	mutex_exit(&instance->cmd_pool_mtx);
2483 
2484 	return (cmd);
2485 }
2486 
2487 static struct mrsas_cmd *
2488 get_mfi_app_pkt(struct mrsas_instance *instance)
2489 {
2490 	mlist_t				*head = &instance->app_cmd_pool_list;
2491 	struct mrsas_cmd	*cmd = NULL;
2492 
2493 	mutex_enter(&instance->app_cmd_pool_mtx);
2494 
2495 	if (!mlist_empty(head)) {
2496 		cmd = mlist_entry(head->next, struct mrsas_cmd, list);
2497 		mlist_del_init(head->next);
2498 	}
2499 	if (cmd != NULL) {
2500 		cmd->pkt = NULL;
2501 		cmd->retry_count_for_ocr = 0;
2502 		cmd->drv_pkt_time = 0;
2503 	}
2504 
2505 	mutex_exit(&instance->app_cmd_pool_mtx);
2506 
2507 	return (cmd);
2508 }
2509 /*
2510  * return_mfi_pkt : Return a cmd to free command pool
2511  */
2512 static void
2513 return_mfi_pkt(struct mrsas_instance *instance, struct mrsas_cmd *cmd)
2514 {
2515 	mutex_enter(&instance->cmd_pool_mtx);
2516 	/* use mlist_add_tail for debug assistance */
2517 	mlist_add_tail(&cmd->list, &instance->cmd_pool_list);
2518 
2519 	mutex_exit(&instance->cmd_pool_mtx);
2520 }
2521 
2522 static void
2523 return_mfi_app_pkt(struct mrsas_instance *instance, struct mrsas_cmd *cmd)
2524 {
2525 	mutex_enter(&instance->app_cmd_pool_mtx);
2526 
2527 	mlist_add(&cmd->list, &instance->app_cmd_pool_list);
2528 
2529 	mutex_exit(&instance->app_cmd_pool_mtx);
2530 }
2531 void
2532 push_pending_mfi_pkt(struct mrsas_instance *instance, struct mrsas_cmd *cmd)
2533 {
2534 	struct scsi_pkt *pkt;
2535 	struct mrsas_header	*hdr;
2536 	con_log(CL_DLEVEL2, (CE_NOTE, "push_pending_pkt(): Called\n"));
2537 	mutex_enter(&instance->cmd_pend_mtx);
2538 	mlist_del_init(&cmd->list);
2539 	mlist_add_tail(&cmd->list, &instance->cmd_pend_list);
2540 	if (cmd->sync_cmd == MRSAS_TRUE) {
2541 		hdr = (struct mrsas_header *)&cmd->frame->hdr;
2542 		if (hdr) {
2543 			con_log(CL_ANN1, (CE_CONT,
2544 			    "push_pending_mfi_pkt: "
2545 			    "cmd %p index %x "
2546 			    "time %llx",
2547 			    (void *)cmd, cmd->index,
2548 			    gethrtime()));
2549 			/* Wait for specified interval	*/
2550 			cmd->drv_pkt_time = ddi_get16(
2551 			    cmd->frame_dma_obj.acc_handle, &hdr->timeout);
2552 			if (cmd->drv_pkt_time < debug_timeout_g)
2553 				cmd->drv_pkt_time = (uint16_t)debug_timeout_g;
2554 				con_log(CL_ANN1, (CE_CONT,
2555 				    "push_pending_pkt(): "
2556 				    "Called IO Timeout Value %x\n",
2557 				    cmd->drv_pkt_time));
2558 		}
2559 		if (hdr && instance->timeout_id == (timeout_id_t)-1) {
2560 			instance->timeout_id = timeout(io_timeout_checker,
2561 			    (void *) instance, drv_usectohz(MRSAS_1_SECOND));
2562 		}
2563 	} else {
2564 		pkt = cmd->pkt;
2565 		if (pkt) {
2566 			con_log(CL_ANN1, (CE_CONT,
2567 			    "push_pending_mfi_pkt: "
2568 			    "cmd %p index %x pkt %p, "
2569 			    "time %llx",
2570 			    (void *)cmd, cmd->index, (void *)pkt,
2571 			    gethrtime()));
2572 			cmd->drv_pkt_time = (uint16_t)debug_timeout_g;
2573 		}
2574 		if (pkt && instance->timeout_id == (timeout_id_t)-1) {
2575 			instance->timeout_id = timeout(io_timeout_checker,
2576 			    (void *) instance, drv_usectohz(MRSAS_1_SECOND));
2577 		}
2578 	}
2579 
2580 	mutex_exit(&instance->cmd_pend_mtx);
2581 
2582 }
2583 
2584 int
2585 mrsas_print_pending_cmds(struct mrsas_instance *instance)
2586 {
2587 	mlist_t *head = &instance->cmd_pend_list;
2588 	mlist_t *tmp = head;
2589 	struct mrsas_cmd *cmd = NULL;
2590 	struct mrsas_header	*hdr;
2591 	unsigned int		flag = 1;
2592 	struct scsi_pkt *pkt;
2593 	int saved_level;
2594 	int cmd_count = 0;
2595 
2596 	saved_level = debug_level_g;
2597 	debug_level_g = CL_ANN1;
2598 
2599 	cmn_err(CE_NOTE, "mrsas_print_pending_cmds(): Called\n");
2600 
2601 	while (flag) {
2602 		mutex_enter(&instance->cmd_pend_mtx);
2603 		tmp	=	tmp->next;
2604 		if (tmp == head) {
2605 			mutex_exit(&instance->cmd_pend_mtx);
2606 			flag = 0;
2607 			con_log(CL_ANN1, (CE_CONT, "mrsas_print_pending_cmds():"
2608 			    " NO MORE CMDS PENDING....\n"));
2609 			break;
2610 		} else {
2611 			cmd = mlist_entry(tmp, struct mrsas_cmd, list);
2612 			mutex_exit(&instance->cmd_pend_mtx);
2613 			if (cmd) {
2614 				if (cmd->sync_cmd == MRSAS_TRUE) {
2615 					hdr = (struct mrsas_header *)
2616 					    &cmd->frame->hdr;
2617 					if (hdr) {
2618 						con_log(CL_ANN1, (CE_CONT,
2619 						    "print: cmd %p index 0x%x "
2620 						    "drv_pkt_time 0x%x (NO-PKT)"
2621 						    " hdr %p\n", (void *)cmd,
2622 						    cmd->index,
2623 						    cmd->drv_pkt_time,
2624 						    (void *)hdr));
2625 					}
2626 				} else {
2627 					pkt = cmd->pkt;
2628 					if (pkt) {
2629 					con_log(CL_ANN1, (CE_CONT,
2630 					    "print: cmd %p index 0x%x "
2631 					    "drv_pkt_time 0x%x pkt %p \n",
2632 					    (void *)cmd, cmd->index,
2633 					    cmd->drv_pkt_time, (void *)pkt));
2634 					}
2635 				}
2636 
2637 				if (++cmd_count == 1) {
2638 					mrsas_print_cmd_details(instance, cmd,
2639 					    0xDD);
2640 				} else {
2641 					mrsas_print_cmd_details(instance, cmd,
2642 					    1);
2643 				}
2644 
2645 			}
2646 		}
2647 	}
2648 	con_log(CL_ANN1, (CE_CONT, "mrsas_print_pending_cmds(): Done\n"));
2649 
2650 
2651 	debug_level_g = saved_level;
2652 
2653 	return (DDI_SUCCESS);
2654 }
2655 
2656 
2657 int
2658 mrsas_complete_pending_cmds(struct mrsas_instance *instance)
2659 {
2660 
2661 	struct mrsas_cmd *cmd = NULL;
2662 	struct scsi_pkt *pkt;
2663 	struct mrsas_header *hdr;
2664 
2665 	struct mlist_head		*pos, *next;
2666 
2667 	con_log(CL_ANN1, (CE_NOTE,
2668 	    "mrsas_complete_pending_cmds(): Called"));
2669 
2670 	mutex_enter(&instance->cmd_pend_mtx);
2671 	mlist_for_each_safe(pos, next, &instance->cmd_pend_list) {
2672 		cmd = mlist_entry(pos, struct mrsas_cmd, list);
2673 		if (cmd) {
2674 			pkt = cmd->pkt;
2675 			if (pkt) { /* for IO */
2676 				if (((pkt->pkt_flags & FLAG_NOINTR)
2677 				    == 0) && pkt->pkt_comp) {
2678 					pkt->pkt_reason
2679 					    = CMD_DEV_GONE;
2680 					pkt->pkt_statistics
2681 					    = STAT_DISCON;
2682 					con_log(CL_ANN1, (CE_CONT,
2683 					    "fail and posting to scsa "
2684 					    "cmd %p index %x"
2685 					    " pkt %p "
2686 					    "time : %llx",
2687 					    (void *)cmd, cmd->index,
2688 					    (void *)pkt, gethrtime()));
2689 					(*pkt->pkt_comp)(pkt);
2690 				}
2691 			} else { /* for DCMDS */
2692 				if (cmd->sync_cmd == MRSAS_TRUE) {
2693 				hdr = (struct mrsas_header *)&cmd->frame->hdr;
2694 				con_log(CL_ANN1, (CE_CONT,
2695 				    "posting invalid status to application "
2696 				    "cmd %p index %x"
2697 				    " hdr %p "
2698 				    "time : %llx",
2699 				    (void *)cmd, cmd->index,
2700 				    (void *)hdr, gethrtime()));
2701 				hdr->cmd_status = MFI_STAT_INVALID_STATUS;
2702 				complete_cmd_in_sync_mode(instance, cmd);
2703 				}
2704 			}
2705 			mlist_del_init(&cmd->list);
2706 		} else {
2707 			con_log(CL_ANN1, (CE_CONT,
2708 			    "mrsas_complete_pending_cmds:"
2709 			    "NULL command\n"));
2710 		}
2711 		con_log(CL_ANN1, (CE_CONT,
2712 		    "mrsas_complete_pending_cmds:"
2713 		    "looping for more commands\n"));
2714 	}
2715 	mutex_exit(&instance->cmd_pend_mtx);
2716 
2717 	con_log(CL_ANN1, (CE_CONT, "mrsas_complete_pending_cmds(): DONE\n"));
2718 	return (DDI_SUCCESS);
2719 }
2720 
2721 void
2722 mrsas_print_cmd_details(struct mrsas_instance *instance, struct mrsas_cmd *cmd,
2723     int detail)
2724 {
2725 	struct scsi_pkt *pkt = cmd->pkt;
2726 	Mpi2RaidSCSIIORequest_t *scsi_io = cmd->scsi_io_request;
2727 	int i;
2728 	int saved_level;
2729 	ddi_acc_handle_t acc_handle =
2730 	    instance->mpi2_frame_pool_dma_obj.acc_handle;
2731 
2732 	if (detail == 0xDD) {
2733 		saved_level = debug_level_g;
2734 		debug_level_g = CL_ANN1;
2735 	}
2736 
2737 
2738 	if (instance->tbolt) {
2739 		con_log(CL_ANN1, (CE_CONT, "print_cmd_details: cmd %p "
2740 		    "cmd->index 0x%x SMID 0x%x timer 0x%x sec\n",
2741 		    (void *)cmd, cmd->index, cmd->SMID, cmd->drv_pkt_time));
2742 	} else {
2743 		con_log(CL_ANN1, (CE_CONT, "print_cmd_details: cmd %p "
2744 		    "cmd->index 0x%x timer 0x%x sec\n",
2745 		    (void *)cmd, cmd->index, cmd->drv_pkt_time));
2746 	}
2747 
2748 	if (pkt) {
2749 		con_log(CL_ANN1, (CE_CONT, "scsi_pkt CDB[0]=0x%x",
2750 		    pkt->pkt_cdbp[0]));
2751 	} else {
2752 		con_log(CL_ANN1, (CE_CONT, "NO-PKT"));
2753 	}
2754 
2755 	if ((detail == 0xDD) && instance->tbolt) {
2756 		con_log(CL_ANN1, (CE_CONT, "RAID_SCSI_IO_REQUEST\n"));
2757 		con_log(CL_ANN1, (CE_CONT, "DevHandle=0x%X Function=0x%X "
2758 		    "IoFlags=0x%X SGLFlags=0x%X DataLength=0x%X\n",
2759 		    ddi_get16(acc_handle, &scsi_io->DevHandle),
2760 		    ddi_get8(acc_handle, &scsi_io->Function),
2761 		    ddi_get16(acc_handle, &scsi_io->IoFlags),
2762 		    ddi_get16(acc_handle, &scsi_io->SGLFlags),
2763 		    ddi_get32(acc_handle, &scsi_io->DataLength)));
2764 
2765 		for (i = 0; i < 32; i++) {
2766 			con_log(CL_ANN1, (CE_CONT, "CDB[%d]=0x%x ", i,
2767 			    ddi_get8(acc_handle, &scsi_io->CDB.CDB32[i])));
2768 		}
2769 
2770 		con_log(CL_ANN1, (CE_CONT, "RAID-CONTEXT\n"));
2771 		con_log(CL_ANN1, (CE_CONT, "status=0x%X extStatus=0x%X "
2772 		    "ldTargetId=0x%X timeoutValue=0x%X regLockFlags=0x%X "
2773 		    "RAIDFlags=0x%X regLockRowLBA=0x%" PRIu64
2774 		    " regLockLength=0x%X spanArm=0x%X\n",
2775 		    ddi_get8(acc_handle, &scsi_io->RaidContext.status),
2776 		    ddi_get8(acc_handle, &scsi_io->RaidContext.extStatus),
2777 		    ddi_get16(acc_handle, &scsi_io->RaidContext.ldTargetId),
2778 		    ddi_get16(acc_handle, &scsi_io->RaidContext.timeoutValue),
2779 		    ddi_get8(acc_handle, &scsi_io->RaidContext.regLockFlags),
2780 		    ddi_get8(acc_handle, &scsi_io->RaidContext.RAIDFlags),
2781 		    ddi_get64(acc_handle, &scsi_io->RaidContext.regLockRowLBA),
2782 		    ddi_get32(acc_handle, &scsi_io->RaidContext.regLockLength),
2783 		    ddi_get8(acc_handle, &scsi_io->RaidContext.spanArm)));
2784 	}
2785 
2786 	if (detail == 0xDD) {
2787 		debug_level_g = saved_level;
2788 	}
2789 }
2790 
2791 
2792 int
2793 mrsas_issue_pending_cmds(struct mrsas_instance *instance)
2794 {
2795 	mlist_t *head	=	&instance->cmd_pend_list;
2796 	mlist_t *tmp	=	head->next;
2797 	struct mrsas_cmd *cmd = NULL;
2798 	struct scsi_pkt *pkt;
2799 
2800 	con_log(CL_ANN1, (CE_NOTE, "mrsas_issue_pending_cmds(): Called"));
2801 	while (tmp != head) {
2802 		mutex_enter(&instance->cmd_pend_mtx);
2803 		cmd = mlist_entry(tmp, struct mrsas_cmd, list);
2804 		tmp = tmp->next;
2805 		mutex_exit(&instance->cmd_pend_mtx);
2806 		if (cmd) {
2807 			con_log(CL_ANN1, (CE_CONT,
2808 			    "mrsas_issue_pending_cmds(): "
2809 			    "Got a cmd: cmd %p index 0x%x drv_pkt_time 0x%x ",
2810 			    (void *)cmd, cmd->index, cmd->drv_pkt_time));
2811 
2812 			/* Reset command timeout value */
2813 			if (cmd->drv_pkt_time < debug_timeout_g)
2814 				cmd->drv_pkt_time = (uint16_t)debug_timeout_g;
2815 
2816 			cmd->retry_count_for_ocr++;
2817 
2818 			cmn_err(CE_CONT, "cmd retry count = %d\n",
2819 			    cmd->retry_count_for_ocr);
2820 
2821 			if (cmd->retry_count_for_ocr > IO_RETRY_COUNT) {
2822 				cmn_err(CE_WARN, "mrsas_issue_pending_cmds(): "
2823 				    "cmd->retry_count exceeded limit >%d\n",
2824 				    IO_RETRY_COUNT);
2825 				mrsas_print_cmd_details(instance, cmd, 0xDD);
2826 
2827 				cmn_err(CE_WARN,
2828 				    "mrsas_issue_pending_cmds():"
2829 				    "Calling KILL Adapter\n");
2830 				if (instance->tbolt)
2831 					mrsas_tbolt_kill_adapter(instance);
2832 				else
2833 					(void) mrsas_kill_adapter(instance);
2834 				return (DDI_FAILURE);
2835 			}
2836 
2837 			pkt = cmd->pkt;
2838 			if (pkt) {
2839 				con_log(CL_ANN1, (CE_CONT,
2840 				    "PENDING PKT-CMD ISSUE: cmd %p index %x "
2841 				    "pkt %p time %llx",
2842 				    (void *)cmd, cmd->index,
2843 				    (void *)pkt,
2844 				    gethrtime()));
2845 
2846 			} else {
2847 				cmn_err(CE_CONT,
2848 				    "mrsas_issue_pending_cmds(): NO-PKT, "
2849 				    "cmd %p index 0x%x drv_pkt_time 0x%x ",
2850 				    (void *)cmd, cmd->index, cmd->drv_pkt_time);
2851 			}
2852 
2853 
2854 			if (cmd->sync_cmd == MRSAS_TRUE) {
2855 				cmn_err(CE_CONT, "mrsas_issue_pending_cmds(): "
2856 				    "SYNC_CMD == TRUE \n");
2857 				instance->func_ptr->issue_cmd_in_sync_mode(
2858 				    instance, cmd);
2859 			} else {
2860 				instance->func_ptr->issue_cmd(cmd, instance);
2861 			}
2862 		} else {
2863 			con_log(CL_ANN1, (CE_CONT,
2864 			    "mrsas_issue_pending_cmds: NULL command\n"));
2865 		}
2866 		con_log(CL_ANN1, (CE_CONT,
2867 		    "mrsas_issue_pending_cmds:"
2868 		    "looping for more commands"));
2869 	}
2870 	con_log(CL_ANN1, (CE_CONT, "mrsas_issue_pending_cmds(): DONE\n"));
2871 	return (DDI_SUCCESS);
2872 }
2873 
2874 
2875 
2876 /*
2877  * destroy_mfi_frame_pool
2878  */
2879 void
2880 destroy_mfi_frame_pool(struct mrsas_instance *instance)
2881 {
2882 	int		i;
2883 	uint32_t	max_cmd = instance->max_fw_cmds;
2884 
2885 	struct mrsas_cmd	*cmd;
2886 
2887 	/* return all frames to pool */
2888 
2889 	for (i = 0; i < max_cmd; i++) {
2890 
2891 		cmd = instance->cmd_list[i];
2892 
2893 		if (cmd->frame_dma_obj_status == DMA_OBJ_ALLOCATED)
2894 			(void) mrsas_free_dma_obj(instance, cmd->frame_dma_obj);
2895 
2896 		cmd->frame_dma_obj_status  = DMA_OBJ_FREED;
2897 	}
2898 
2899 }
2900 
2901 /*
2902  * create_mfi_frame_pool
2903  */
2904 int
2905 create_mfi_frame_pool(struct mrsas_instance *instance)
2906 {
2907 	int		i = 0;
2908 	int		cookie_cnt;
2909 	uint16_t	max_cmd;
2910 	uint16_t	sge_sz;
2911 	uint32_t	sgl_sz;
2912 	uint32_t	tot_frame_size;
2913 	struct mrsas_cmd	*cmd;
2914 	int			retval = DDI_SUCCESS;
2915 
2916 	max_cmd = instance->max_fw_cmds;
2917 	sge_sz	= sizeof (struct mrsas_sge_ieee);
2918 	/* calculated the number of 64byte frames required for SGL */
2919 	sgl_sz		= sge_sz * instance->max_num_sge;
2920 	tot_frame_size	= sgl_sz + MRMFI_FRAME_SIZE + SENSE_LENGTH;
2921 
2922 	con_log(CL_DLEVEL3, (CE_NOTE, "create_mfi_frame_pool: "
2923 	    "sgl_sz %x tot_frame_size %x", sgl_sz, tot_frame_size));
2924 
2925 	while (i < max_cmd) {
2926 		cmd = instance->cmd_list[i];
2927 
2928 		cmd->frame_dma_obj.size	= tot_frame_size;
2929 		cmd->frame_dma_obj.dma_attr = mrsas_generic_dma_attr;
2930 		cmd->frame_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
2931 		cmd->frame_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
2932 		cmd->frame_dma_obj.dma_attr.dma_attr_sgllen = 1;
2933 		cmd->frame_dma_obj.dma_attr.dma_attr_align = 64;
2934 
2935 		cookie_cnt = mrsas_alloc_dma_obj(instance, &cmd->frame_dma_obj,
2936 		    (uchar_t)DDI_STRUCTURE_LE_ACC);
2937 
2938 		if (cookie_cnt == -1 || cookie_cnt > 1) {
2939 			cmn_err(CE_WARN,
2940 			    "create_mfi_frame_pool: could not alloc.");
2941 			retval = DDI_FAILURE;
2942 			goto mrsas_undo_frame_pool;
2943 		}
2944 
2945 		bzero(cmd->frame_dma_obj.buffer, tot_frame_size);
2946 
2947 		cmd->frame_dma_obj_status = DMA_OBJ_ALLOCATED;
2948 		cmd->frame = (union mrsas_frame *)cmd->frame_dma_obj.buffer;
2949 		cmd->frame_phys_addr =
2950 		    cmd->frame_dma_obj.dma_cookie[0].dmac_address;
2951 
2952 		cmd->sense = (uint8_t *)(((unsigned long)
2953 		    cmd->frame_dma_obj.buffer) +
2954 		    tot_frame_size - SENSE_LENGTH);
2955 		cmd->sense_phys_addr =
2956 		    cmd->frame_dma_obj.dma_cookie[0].dmac_address +
2957 		    tot_frame_size - SENSE_LENGTH;
2958 
2959 		if (!cmd->frame || !cmd->sense) {
2960 			cmn_err(CE_WARN,
2961 			    "mr_sas: pci_pool_alloc failed");
2962 			retval = ENOMEM;
2963 			goto mrsas_undo_frame_pool;
2964 		}
2965 
2966 		ddi_put32(cmd->frame_dma_obj.acc_handle,
2967 		    &cmd->frame->io.context, cmd->index);
2968 		i++;
2969 
2970 		con_log(CL_DLEVEL3, (CE_NOTE, "[%x]-%x",
2971 		    cmd->index, cmd->frame_phys_addr));
2972 	}
2973 
2974 	return (DDI_SUCCESS);
2975 
2976 mrsas_undo_frame_pool:
2977 	if (i > 0)
2978 		destroy_mfi_frame_pool(instance);
2979 
2980 	return (retval);
2981 }
2982 
2983 /*
2984  * free_additional_dma_buffer
2985  */
2986 static void
2987 free_additional_dma_buffer(struct mrsas_instance *instance)
2988 {
2989 	if (instance->mfi_internal_dma_obj.status == DMA_OBJ_ALLOCATED) {
2990 		(void) mrsas_free_dma_obj(instance,
2991 		    instance->mfi_internal_dma_obj);
2992 		instance->mfi_internal_dma_obj.status = DMA_OBJ_FREED;
2993 	}
2994 
2995 	if (instance->mfi_evt_detail_obj.status == DMA_OBJ_ALLOCATED) {
2996 		(void) mrsas_free_dma_obj(instance,
2997 		    instance->mfi_evt_detail_obj);
2998 		instance->mfi_evt_detail_obj.status = DMA_OBJ_FREED;
2999 	}
3000 }
3001 
3002 /*
3003  * alloc_additional_dma_buffer
3004  */
3005 static int
3006 alloc_additional_dma_buffer(struct mrsas_instance *instance)
3007 {
3008 	uint32_t	reply_q_sz;
3009 	uint32_t	internal_buf_size = PAGESIZE*2;
3010 
3011 	/* max cmds plus 1 + producer & consumer */
3012 	reply_q_sz = sizeof (uint32_t) * (instance->max_fw_cmds + 1 + 2);
3013 
3014 	instance->mfi_internal_dma_obj.size = internal_buf_size;
3015 	instance->mfi_internal_dma_obj.dma_attr	= mrsas_generic_dma_attr;
3016 	instance->mfi_internal_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
3017 	instance->mfi_internal_dma_obj.dma_attr.dma_attr_count_max =
3018 	    0xFFFFFFFFU;
3019 	instance->mfi_internal_dma_obj.dma_attr.dma_attr_sgllen	= 1;
3020 
3021 	if (mrsas_alloc_dma_obj(instance, &instance->mfi_internal_dma_obj,
3022 	    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
3023 		cmn_err(CE_WARN,
3024 		    "mr_sas: could not alloc reply queue");
3025 		return (DDI_FAILURE);
3026 	}
3027 
3028 	bzero(instance->mfi_internal_dma_obj.buffer, internal_buf_size);
3029 
3030 	instance->mfi_internal_dma_obj.status |= DMA_OBJ_ALLOCATED;
3031 
3032 	instance->producer = (uint32_t *)((unsigned long)
3033 	    instance->mfi_internal_dma_obj.buffer);
3034 	instance->consumer = (uint32_t *)((unsigned long)
3035 	    instance->mfi_internal_dma_obj.buffer + 4);
3036 	instance->reply_queue = (uint32_t *)((unsigned long)
3037 	    instance->mfi_internal_dma_obj.buffer + 8);
3038 	instance->internal_buf = (caddr_t)(((unsigned long)
3039 	    instance->mfi_internal_dma_obj.buffer) + reply_q_sz + 8);
3040 	instance->internal_buf_dmac_add =
3041 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address +
3042 	    (reply_q_sz + 8);
3043 	instance->internal_buf_size = internal_buf_size -
3044 	    (reply_q_sz + 8);
3045 
3046 	/* allocate evt_detail */
3047 	instance->mfi_evt_detail_obj.size = sizeof (struct mrsas_evt_detail);
3048 	instance->mfi_evt_detail_obj.dma_attr = mrsas_generic_dma_attr;
3049 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
3050 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
3051 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_sgllen = 1;
3052 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_align = 1;
3053 
3054 	if (mrsas_alloc_dma_obj(instance, &instance->mfi_evt_detail_obj,
3055 	    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
3056 		cmn_err(CE_WARN, "alloc_additional_dma_buffer: "
3057 		    "could not allocate data transfer buffer.");
3058 		goto mrsas_undo_internal_buff;
3059 	}
3060 
3061 	bzero(instance->mfi_evt_detail_obj.buffer,
3062 	    sizeof (struct mrsas_evt_detail));
3063 
3064 	instance->mfi_evt_detail_obj.status |= DMA_OBJ_ALLOCATED;
3065 
3066 	return (DDI_SUCCESS);
3067 
3068 mrsas_undo_internal_buff:
3069 	if (instance->mfi_internal_dma_obj.status == DMA_OBJ_ALLOCATED) {
3070 		(void) mrsas_free_dma_obj(instance,
3071 		    instance->mfi_internal_dma_obj);
3072 		instance->mfi_internal_dma_obj.status = DMA_OBJ_FREED;
3073 	}
3074 
3075 	return (DDI_FAILURE);
3076 }
3077 
3078 
3079 void
3080 mrsas_free_cmd_pool(struct mrsas_instance *instance)
3081 {
3082 	int		i;
3083 	uint32_t	max_cmd;
3084 	size_t		sz;
3085 
3086 	/* already freed */
3087 	if (instance->cmd_list == NULL) {
3088 		return;
3089 	}
3090 
3091 	max_cmd = instance->max_fw_cmds;
3092 
3093 	/* size of cmd_list array */
3094 	sz = sizeof (struct mrsas_cmd *) * max_cmd;
3095 
3096 	/* First free each cmd */
3097 	for (i = 0; i < max_cmd; i++) {
3098 		if (instance->cmd_list[i] != NULL) {
3099 			kmem_free(instance->cmd_list[i],
3100 			    sizeof (struct mrsas_cmd));
3101 		}
3102 
3103 		instance->cmd_list[i] = NULL;
3104 	}
3105 
3106 	/* Now, free cmd_list array */
3107 	if (instance->cmd_list != NULL)
3108 		kmem_free(instance->cmd_list, sz);
3109 
3110 	instance->cmd_list = NULL;
3111 
3112 	INIT_LIST_HEAD(&instance->cmd_pool_list);
3113 	INIT_LIST_HEAD(&instance->cmd_pend_list);
3114 	if (instance->tbolt) {
3115 		INIT_LIST_HEAD(&instance->cmd_app_pool_list);
3116 	} else {
3117 		INIT_LIST_HEAD(&instance->app_cmd_pool_list);
3118 	}
3119 
3120 }
3121 
3122 
3123 /*
3124  * mrsas_alloc_cmd_pool
3125  */
3126 int
3127 mrsas_alloc_cmd_pool(struct mrsas_instance *instance)
3128 {
3129 	int		i;
3130 	int		count;
3131 	uint32_t	max_cmd;
3132 	uint32_t	reserve_cmd;
3133 	size_t		sz;
3134 
3135 	struct mrsas_cmd	*cmd;
3136 
3137 	max_cmd = instance->max_fw_cmds;
3138 	con_log(CL_ANN1, (CE_NOTE, "mrsas_alloc_cmd_pool: "
3139 	    "max_cmd %x", max_cmd));
3140 
3141 
3142 	sz = sizeof (struct mrsas_cmd *) * max_cmd;
3143 
3144 	/*
3145 	 * instance->cmd_list is an array of struct mrsas_cmd pointers.
3146 	 * Allocate the dynamic array first and then allocate individual
3147 	 * commands.
3148 	 */
3149 	instance->cmd_list = kmem_zalloc(sz, KM_SLEEP);
3150 	ASSERT(instance->cmd_list);
3151 
3152 	/* create a frame pool and assign one frame to each cmd */
3153 	for (count = 0; count < max_cmd; count++) {
3154 		instance->cmd_list[count] =
3155 		    kmem_zalloc(sizeof (struct mrsas_cmd), KM_SLEEP);
3156 		ASSERT(instance->cmd_list[count]);
3157 	}
3158 
3159 	/* add all the commands to command pool */
3160 
3161 	INIT_LIST_HEAD(&instance->cmd_pool_list);
3162 	INIT_LIST_HEAD(&instance->cmd_pend_list);
3163 	INIT_LIST_HEAD(&instance->app_cmd_pool_list);
3164 
3165 	reserve_cmd = MRSAS_APP_RESERVED_CMDS;
3166 
3167 	for (i = 0; i < reserve_cmd; i++) {
3168 		cmd = instance->cmd_list[i];
3169 		cmd->index = i;
3170 		mlist_add_tail(&cmd->list, &instance->app_cmd_pool_list);
3171 	}
3172 
3173 
3174 	for (i = reserve_cmd; i < max_cmd; i++) {
3175 		cmd = instance->cmd_list[i];
3176 		cmd->index = i;
3177 		mlist_add_tail(&cmd->list, &instance->cmd_pool_list);
3178 	}
3179 
3180 	return (DDI_SUCCESS);
3181 
3182 mrsas_undo_cmds:
3183 	if (count > 0) {
3184 		/* free each cmd */
3185 		for (i = 0; i < count; i++) {
3186 			if (instance->cmd_list[i] != NULL) {
3187 				kmem_free(instance->cmd_list[i],
3188 				    sizeof (struct mrsas_cmd));
3189 			}
3190 			instance->cmd_list[i] = NULL;
3191 		}
3192 	}
3193 
3194 mrsas_undo_cmd_list:
3195 	if (instance->cmd_list != NULL)
3196 		kmem_free(instance->cmd_list, sz);
3197 	instance->cmd_list = NULL;
3198 
3199 	return (DDI_FAILURE);
3200 }
3201 
3202 
3203 /*
3204  * free_space_for_mfi
3205  */
3206 static void
3207 free_space_for_mfi(struct mrsas_instance *instance)
3208 {
3209 
3210 	/* already freed */
3211 	if (instance->cmd_list == NULL) {
3212 		return;
3213 	}
3214 
3215 	/* Free additional dma buffer */
3216 	free_additional_dma_buffer(instance);
3217 
3218 	/* Free the MFI frame pool */
3219 	destroy_mfi_frame_pool(instance);
3220 
3221 	/* Free all the commands in the cmd_list */
3222 	/* Free the cmd_list buffer itself */
3223 	mrsas_free_cmd_pool(instance);
3224 }
3225 
3226 /*
3227  * alloc_space_for_mfi
3228  */
3229 static int
3230 alloc_space_for_mfi(struct mrsas_instance *instance)
3231 {
3232 	/* Allocate command pool (memory for cmd_list & individual commands) */
3233 	if (mrsas_alloc_cmd_pool(instance)) {
3234 		cmn_err(CE_WARN, "error creating cmd pool");
3235 		return (DDI_FAILURE);
3236 	}
3237 
3238 	/* Allocate MFI Frame pool */
3239 	if (create_mfi_frame_pool(instance)) {
3240 		cmn_err(CE_WARN, "error creating frame DMA pool");
3241 		goto mfi_undo_cmd_pool;
3242 	}
3243 
3244 	/* Allocate additional DMA buffer */
3245 	if (alloc_additional_dma_buffer(instance)) {
3246 		cmn_err(CE_WARN, "error creating frame DMA pool");
3247 		goto mfi_undo_frame_pool;
3248 	}
3249 
3250 	return (DDI_SUCCESS);
3251 
3252 mfi_undo_frame_pool:
3253 	destroy_mfi_frame_pool(instance);
3254 
3255 mfi_undo_cmd_pool:
3256 	mrsas_free_cmd_pool(instance);
3257 
3258 	return (DDI_FAILURE);
3259 }
3260 
3261 
3262 
3263 /*
3264  * get_ctrl_info
3265  */
3266 static int
3267 get_ctrl_info(struct mrsas_instance *instance,
3268     struct mrsas_ctrl_info *ctrl_info)
3269 {
3270 	int	ret = 0;
3271 
3272 	struct mrsas_cmd		*cmd;
3273 	struct mrsas_dcmd_frame	*dcmd;
3274 	struct mrsas_ctrl_info	*ci;
3275 
3276 	if (instance->tbolt) {
3277 		cmd = get_raid_msg_mfi_pkt(instance);
3278 	} else {
3279 		cmd = get_mfi_pkt(instance);
3280 	}
3281 
3282 	if (!cmd) {
3283 		con_log(CL_ANN, (CE_WARN,
3284 		    "Failed to get a cmd for ctrl info"));
3285 		DTRACE_PROBE2(info_mfi_err, uint16_t, instance->fw_outstanding,
3286 		    uint16_t, instance->max_fw_cmds);
3287 		return (DDI_FAILURE);
3288 	}
3289 
3290 	/* Clear the frame buffer and assign back the context id */
3291 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
3292 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
3293 	    cmd->index);
3294 
3295 	dcmd = &cmd->frame->dcmd;
3296 
3297 	ci = (struct mrsas_ctrl_info *)instance->internal_buf;
3298 
3299 	if (!ci) {
3300 		cmn_err(CE_WARN,
3301 		    "Failed to alloc mem for ctrl info");
3302 		return_mfi_pkt(instance, cmd);
3303 		return (DDI_FAILURE);
3304 	}
3305 
3306 	(void) memset(ci, 0, sizeof (struct mrsas_ctrl_info));
3307 
3308 	/* for( i = 0; i < DCMD_MBOX_SZ; i++ ) dcmd->mbox.b[i] = 0; */
3309 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
3310 
3311 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
3312 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status,
3313 	    MFI_CMD_STATUS_POLL_MODE);
3314 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 1);
3315 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
3316 	    MFI_FRAME_DIR_READ);
3317 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
3318 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len,
3319 	    sizeof (struct mrsas_ctrl_info));
3320 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
3321 	    MR_DCMD_CTRL_GET_INFO);
3322 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].phys_addr,
3323 	    instance->internal_buf_dmac_add);
3324 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].length,
3325 	    sizeof (struct mrsas_ctrl_info));
3326 
3327 	cmd->frame_count = 1;
3328 
3329 	if (instance->tbolt) {
3330 		mr_sas_tbolt_build_mfi_cmd(instance, cmd);
3331 	}
3332 
3333 	if (!instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
3334 		ret = 0;
3335 
3336 		ctrl_info->max_request_size = ddi_get32(
3337 		    cmd->frame_dma_obj.acc_handle, &ci->max_request_size);
3338 
3339 		ctrl_info->ld_present_count = ddi_get16(
3340 		    cmd->frame_dma_obj.acc_handle, &ci->ld_present_count);
3341 
3342 		ctrl_info->properties.on_off_properties = ddi_get32(
3343 		    cmd->frame_dma_obj.acc_handle,
3344 		    &ci->properties.on_off_properties);
3345 		ddi_rep_get8(cmd->frame_dma_obj.acc_handle,
3346 		    (uint8_t *)(ctrl_info->product_name),
3347 		    (uint8_t *)(ci->product_name), 80 * sizeof (char),
3348 		    DDI_DEV_AUTOINCR);
3349 		/* should get more members of ci with ddi_get when needed */
3350 	} else {
3351 		cmn_err(CE_WARN, "get_ctrl_info: Ctrl info failed");
3352 		ret = -1;
3353 	}
3354 
3355 	if (mrsas_common_check(instance, cmd) != DDI_SUCCESS) {
3356 		ret = -1;
3357 	}
3358 	if (instance->tbolt) {
3359 		return_raid_msg_mfi_pkt(instance, cmd);
3360 	} else {
3361 		return_mfi_pkt(instance, cmd);
3362 	}
3363 
3364 	return (ret);
3365 }
3366 
3367 /*
3368  * abort_aen_cmd
3369  */
3370 static int
3371 abort_aen_cmd(struct mrsas_instance *instance,
3372     struct mrsas_cmd *cmd_to_abort)
3373 {
3374 	int	ret = 0;
3375 
3376 	struct mrsas_cmd		*cmd;
3377 	struct mrsas_abort_frame	*abort_fr;
3378 
3379 	con_log(CL_ANN1, (CE_NOTE, "chkpnt: abort_aen:%d", __LINE__));
3380 
3381 	if (instance->tbolt) {
3382 		cmd = get_raid_msg_mfi_pkt(instance);
3383 	} else {
3384 		cmd = get_mfi_pkt(instance);
3385 	}
3386 
3387 	if (!cmd) {
3388 		con_log(CL_ANN1, (CE_WARN,
3389 		    "abort_aen_cmd():Failed to get a cmd for abort_aen_cmd"));
3390 		DTRACE_PROBE2(abort_mfi_err, uint16_t, instance->fw_outstanding,
3391 		    uint16_t, instance->max_fw_cmds);
3392 		return (DDI_FAILURE);
3393 	}
3394 
3395 	/* Clear the frame buffer and assign back the context id */
3396 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
3397 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
3398 	    cmd->index);
3399 
3400 	abort_fr = &cmd->frame->abort;
3401 
3402 	/* prepare and issue the abort frame */
3403 	ddi_put8(cmd->frame_dma_obj.acc_handle,
3404 	    &abort_fr->cmd, MFI_CMD_OP_ABORT);
3405 	ddi_put8(cmd->frame_dma_obj.acc_handle, &abort_fr->cmd_status,
3406 	    MFI_CMD_STATUS_SYNC_MODE);
3407 	ddi_put16(cmd->frame_dma_obj.acc_handle, &abort_fr->flags, 0);
3408 	ddi_put32(cmd->frame_dma_obj.acc_handle, &abort_fr->abort_context,
3409 	    cmd_to_abort->index);
3410 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3411 	    &abort_fr->abort_mfi_phys_addr_lo, cmd_to_abort->frame_phys_addr);
3412 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3413 	    &abort_fr->abort_mfi_phys_addr_hi, 0);
3414 
3415 	instance->aen_cmd->abort_aen = 1;
3416 
3417 	cmd->frame_count = 1;
3418 
3419 	if (instance->tbolt) {
3420 		mr_sas_tbolt_build_mfi_cmd(instance, cmd);
3421 	}
3422 
3423 	if (instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
3424 		con_log(CL_ANN1, (CE_WARN,
3425 		    "abort_aen_cmd: issue_cmd_in_poll_mode failed"));
3426 		ret = -1;
3427 	} else {
3428 		ret = 0;
3429 	}
3430 
3431 	instance->aen_cmd->abort_aen = 1;
3432 	instance->aen_cmd = 0;
3433 
3434 	if (instance->tbolt) {
3435 		return_raid_msg_mfi_pkt(instance, cmd);
3436 	} else {
3437 		return_mfi_pkt(instance, cmd);
3438 	}
3439 
3440 	atomic_add_16(&instance->fw_outstanding, (-1));
3441 
3442 	return (ret);
3443 }
3444 
3445 
3446 static int
3447 mrsas_build_init_cmd(struct mrsas_instance *instance,
3448     struct mrsas_cmd **cmd_ptr)
3449 {
3450 	struct mrsas_cmd		*cmd;
3451 	struct mrsas_init_frame		*init_frame;
3452 	struct mrsas_init_queue_info	*initq_info;
3453 	struct mrsas_drv_ver		drv_ver_info;
3454 
3455 
3456 	/*
3457 	 * Prepare a init frame. Note the init frame points to queue info
3458 	 * structure. Each frame has SGL allocated after first 64 bytes. For
3459 	 * this frame - since we don't need any SGL - we use SGL's space as
3460 	 * queue info structure
3461 	 */
3462 	cmd = *cmd_ptr;
3463 
3464 
3465 	/* Clear the frame buffer and assign back the context id */
3466 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
3467 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
3468 	    cmd->index);
3469 
3470 	init_frame = (struct mrsas_init_frame *)cmd->frame;
3471 	initq_info = (struct mrsas_init_queue_info *)
3472 	    ((unsigned long)init_frame + 64);
3473 
3474 	(void) memset(init_frame, 0, MRMFI_FRAME_SIZE);
3475 	(void) memset(initq_info, 0, sizeof (struct mrsas_init_queue_info));
3476 
3477 	ddi_put32(cmd->frame_dma_obj.acc_handle, &initq_info->init_flags, 0);
3478 
3479 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3480 	    &initq_info->reply_queue_entries, instance->max_fw_cmds + 1);
3481 
3482 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3483 	    &initq_info->producer_index_phys_addr_hi, 0);
3484 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3485 	    &initq_info->producer_index_phys_addr_lo,
3486 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address);
3487 
3488 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3489 	    &initq_info->consumer_index_phys_addr_hi, 0);
3490 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3491 	    &initq_info->consumer_index_phys_addr_lo,
3492 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address + 4);
3493 
3494 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3495 	    &initq_info->reply_queue_start_phys_addr_hi, 0);
3496 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3497 	    &initq_info->reply_queue_start_phys_addr_lo,
3498 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address + 8);
3499 
3500 	ddi_put8(cmd->frame_dma_obj.acc_handle,
3501 	    &init_frame->cmd, MFI_CMD_OP_INIT);
3502 	ddi_put8(cmd->frame_dma_obj.acc_handle, &init_frame->cmd_status,
3503 	    MFI_CMD_STATUS_POLL_MODE);
3504 	ddi_put16(cmd->frame_dma_obj.acc_handle, &init_frame->flags, 0);
3505 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3506 	    &init_frame->queue_info_new_phys_addr_lo,
3507 	    cmd->frame_phys_addr + 64);
3508 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3509 	    &init_frame->queue_info_new_phys_addr_hi, 0);
3510 
3511 
3512 	/* fill driver version information */
3513 	fill_up_drv_ver(&drv_ver_info);
3514 
3515 	/* allocate the driver version data transfer buffer */
3516 	instance->drv_ver_dma_obj.size = sizeof (drv_ver_info.drv_ver);
3517 	instance->drv_ver_dma_obj.dma_attr = mrsas_generic_dma_attr;
3518 	instance->drv_ver_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
3519 	instance->drv_ver_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
3520 	instance->drv_ver_dma_obj.dma_attr.dma_attr_sgllen = 1;
3521 	instance->drv_ver_dma_obj.dma_attr.dma_attr_align = 1;
3522 
3523 	if (mrsas_alloc_dma_obj(instance, &instance->drv_ver_dma_obj,
3524 	    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
3525 		con_log(CL_ANN, (CE_WARN,
3526 		    "init_mfi : Could not allocate driver version buffer."));
3527 		return (DDI_FAILURE);
3528 	}
3529 	/* copy driver version to dma buffer */
3530 	(void) memset(instance->drv_ver_dma_obj.buffer, 0,
3531 	    sizeof (drv_ver_info.drv_ver));
3532 	ddi_rep_put8(cmd->frame_dma_obj.acc_handle,
3533 	    (uint8_t *)drv_ver_info.drv_ver,
3534 	    (uint8_t *)instance->drv_ver_dma_obj.buffer,
3535 	    sizeof (drv_ver_info.drv_ver), DDI_DEV_AUTOINCR);
3536 
3537 
3538 	/* copy driver version physical address to init frame */
3539 	ddi_put64(cmd->frame_dma_obj.acc_handle, &init_frame->driverversion,
3540 	    instance->drv_ver_dma_obj.dma_cookie[0].dmac_address);
3541 
3542 	ddi_put32(cmd->frame_dma_obj.acc_handle, &init_frame->data_xfer_len,
3543 	    sizeof (struct mrsas_init_queue_info));
3544 
3545 	cmd->frame_count = 1;
3546 
3547 	*cmd_ptr = cmd;
3548 
3549 	return (DDI_SUCCESS);
3550 }
3551 
3552 
3553 /*
3554  * mrsas_init_adapter_ppc - Initialize MFI interface adapter.
3555  */
3556 int
3557 mrsas_init_adapter_ppc(struct mrsas_instance *instance)
3558 {
3559 	struct mrsas_cmd		*cmd;
3560 
3561 	/*
3562 	 * allocate memory for mfi adapter(cmd pool, individual commands, mfi
3563 	 * frames etc
3564 	 */
3565 	if (alloc_space_for_mfi(instance) != DDI_SUCCESS) {
3566 		con_log(CL_ANN, (CE_NOTE,
3567 		    "Error, failed to allocate memory for MFI adapter"));
3568 		return (DDI_FAILURE);
3569 	}
3570 
3571 	/* Build INIT command */
3572 	cmd = get_mfi_pkt(instance);
3573 
3574 	if (mrsas_build_init_cmd(instance, &cmd) != DDI_SUCCESS) {
3575 		con_log(CL_ANN,
3576 		    (CE_NOTE, "Error, failed to build INIT command"));
3577 
3578 		goto fail_undo_alloc_mfi_space;
3579 	}
3580 
3581 	/*
3582 	 * Disable interrupt before sending init frame ( see linux driver code)
3583 	 * send INIT MFI frame in polled mode
3584 	 */
3585 	if (instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
3586 		con_log(CL_ANN, (CE_WARN, "failed to init firmware"));
3587 		goto fail_fw_init;
3588 	}
3589 
3590 	if (mrsas_common_check(instance, cmd) != DDI_SUCCESS)
3591 		goto fail_fw_init;
3592 	return_mfi_pkt(instance, cmd);
3593 
3594 	if (ctio_enable &&
3595 	    (instance->func_ptr->read_fw_status_reg(instance) & 0x04000000)) {
3596 		con_log(CL_ANN, (CE_NOTE, "mr_sas: IEEE SGL's supported"));
3597 		instance->flag_ieee = 1;
3598 	} else {
3599 		instance->flag_ieee = 0;
3600 	}
3601 
3602 	instance->unroll.alloc_space_mfi = 1;
3603 	instance->unroll.verBuff = 1;
3604 
3605 	return (DDI_SUCCESS);
3606 
3607 
3608 fail_fw_init:
3609 	(void) mrsas_free_dma_obj(instance, instance->drv_ver_dma_obj);
3610 
3611 fail_undo_alloc_mfi_space:
3612 	return_mfi_pkt(instance, cmd);
3613 	free_space_for_mfi(instance);
3614 
3615 	return (DDI_FAILURE);
3616 
3617 }
3618 
3619 /*
3620  * mrsas_init_adapter - Initialize adapter.
3621  */
3622 int
3623 mrsas_init_adapter(struct mrsas_instance *instance)
3624 {
3625 	struct mrsas_ctrl_info		ctrl_info;
3626 
3627 
3628 	/* we expect the FW state to be READY */
3629 	if (mfi_state_transition_to_ready(instance)) {
3630 		con_log(CL_ANN, (CE_WARN, "mr_sas: F/W is not ready"));
3631 		return (DDI_FAILURE);
3632 	}
3633 
3634 	/* get various operational parameters from status register */
3635 	instance->max_num_sge =
3636 	    (instance->func_ptr->read_fw_status_reg(instance) &
3637 	    0xFF0000) >> 0x10;
3638 	instance->max_num_sge =
3639 	    (instance->max_num_sge > MRSAS_MAX_SGE_CNT) ?
3640 	    MRSAS_MAX_SGE_CNT : instance->max_num_sge;
3641 
3642 	/*
3643 	 * Reduce the max supported cmds by 1. This is to ensure that the
3644 	 * reply_q_sz (1 more than the max cmd that driver may send)
3645 	 * does not exceed max cmds that the FW can support
3646 	 */
3647 	instance->max_fw_cmds =
3648 	    instance->func_ptr->read_fw_status_reg(instance) & 0xFFFF;
3649 	instance->max_fw_cmds = instance->max_fw_cmds - 1;
3650 
3651 
3652 
3653 	/* Initialize adapter */
3654 	if (instance->func_ptr->init_adapter(instance) != DDI_SUCCESS) {
3655 		con_log(CL_ANN,
3656 		    (CE_WARN, "mr_sas: could not initialize adapter"));
3657 		return (DDI_FAILURE);
3658 	}
3659 
3660 	/* gather misc FW related information */
3661 	instance->disable_online_ctrl_reset = 0;
3662 
3663 	if (!get_ctrl_info(instance, &ctrl_info)) {
3664 		instance->max_sectors_per_req = ctrl_info.max_request_size;
3665 		con_log(CL_ANN1, (CE_NOTE,
3666 		    "product name %s ld present %d",
3667 		    ctrl_info.product_name, ctrl_info.ld_present_count));
3668 	} else {
3669 		instance->max_sectors_per_req = instance->max_num_sge *
3670 		    PAGESIZE / 512;
3671 	}
3672 
3673 	if (ctrl_info.properties.on_off_properties & DISABLE_OCR_PROP_FLAG)
3674 		instance->disable_online_ctrl_reset = 1;
3675 
3676 	return (DDI_SUCCESS);
3677 
3678 }
3679 
3680 
3681 
3682 static int
3683 mrsas_issue_init_mfi(struct mrsas_instance *instance)
3684 {
3685 	struct mrsas_cmd		*cmd;
3686 	struct mrsas_init_frame		*init_frame;
3687 	struct mrsas_init_queue_info	*initq_info;
3688 
3689 /*
3690  * Prepare a init frame. Note the init frame points to queue info
3691  * structure. Each frame has SGL allocated after first 64 bytes. For
3692  * this frame - since we don't need any SGL - we use SGL's space as
3693  * queue info structure
3694  */
3695 	con_log(CL_ANN1, (CE_NOTE,
3696 	    "mrsas_issue_init_mfi: entry\n"));
3697 	cmd = get_mfi_app_pkt(instance);
3698 
3699 	if (!cmd) {
3700 		con_log(CL_ANN1, (CE_WARN,
3701 		    "mrsas_issue_init_mfi: get_pkt failed\n"));
3702 		return (DDI_FAILURE);
3703 	}
3704 
3705 	/* Clear the frame buffer and assign back the context id */
3706 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
3707 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
3708 	    cmd->index);
3709 
3710 	init_frame = (struct mrsas_init_frame *)cmd->frame;
3711 	initq_info = (struct mrsas_init_queue_info *)
3712 	    ((unsigned long)init_frame + 64);
3713 
3714 	(void) memset(init_frame, 0, MRMFI_FRAME_SIZE);
3715 	(void) memset(initq_info, 0, sizeof (struct mrsas_init_queue_info));
3716 
3717 	ddi_put32(cmd->frame_dma_obj.acc_handle, &initq_info->init_flags, 0);
3718 
3719 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3720 	    &initq_info->reply_queue_entries, instance->max_fw_cmds + 1);
3721 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3722 	    &initq_info->producer_index_phys_addr_hi, 0);
3723 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3724 	    &initq_info->producer_index_phys_addr_lo,
3725 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address);
3726 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3727 	    &initq_info->consumer_index_phys_addr_hi, 0);
3728 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3729 	    &initq_info->consumer_index_phys_addr_lo,
3730 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address + 4);
3731 
3732 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3733 	    &initq_info->reply_queue_start_phys_addr_hi, 0);
3734 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3735 	    &initq_info->reply_queue_start_phys_addr_lo,
3736 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address + 8);
3737 
3738 	ddi_put8(cmd->frame_dma_obj.acc_handle,
3739 	    &init_frame->cmd, MFI_CMD_OP_INIT);
3740 	ddi_put8(cmd->frame_dma_obj.acc_handle, &init_frame->cmd_status,
3741 	    MFI_CMD_STATUS_POLL_MODE);
3742 	ddi_put16(cmd->frame_dma_obj.acc_handle, &init_frame->flags, 0);
3743 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3744 	    &init_frame->queue_info_new_phys_addr_lo,
3745 	    cmd->frame_phys_addr + 64);
3746 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3747 	    &init_frame->queue_info_new_phys_addr_hi, 0);
3748 
3749 	ddi_put32(cmd->frame_dma_obj.acc_handle, &init_frame->data_xfer_len,
3750 	    sizeof (struct mrsas_init_queue_info));
3751 
3752 	cmd->frame_count = 1;
3753 
3754 	/* issue the init frame in polled mode */
3755 	if (instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
3756 		con_log(CL_ANN1, (CE_WARN,
3757 		    "mrsas_issue_init_mfi():failed to "
3758 		    "init firmware"));
3759 		return_mfi_app_pkt(instance, cmd);
3760 		return (DDI_FAILURE);
3761 	}
3762 
3763 	if (mrsas_common_check(instance, cmd) != DDI_SUCCESS) {
3764 		return_mfi_pkt(instance, cmd);
3765 		return (DDI_FAILURE);
3766 	}
3767 
3768 	return_mfi_app_pkt(instance, cmd);
3769 	con_log(CL_ANN1, (CE_CONT, "mrsas_issue_init_mfi: Done"));
3770 
3771 	return (DDI_SUCCESS);
3772 }
3773 /*
3774  * mfi_state_transition_to_ready	: Move the FW to READY state
3775  *
3776  * @reg_set			: MFI register set
3777  */
3778 int
3779 mfi_state_transition_to_ready(struct mrsas_instance *instance)
3780 {
3781 	int		i;
3782 	uint8_t		max_wait;
3783 	uint32_t	fw_ctrl = 0;
3784 	uint32_t	fw_state;
3785 	uint32_t	cur_state;
3786 	uint32_t	cur_abs_reg_val;
3787 	uint32_t	prev_abs_reg_val;
3788 	uint32_t	status;
3789 
3790 	cur_abs_reg_val =
3791 	    instance->func_ptr->read_fw_status_reg(instance);
3792 	fw_state =
3793 	    cur_abs_reg_val & MFI_STATE_MASK;
3794 	con_log(CL_ANN1, (CE_CONT,
3795 	    "mfi_state_transition_to_ready:FW state = 0x%x", fw_state));
3796 
3797 	while (fw_state != MFI_STATE_READY) {
3798 		con_log(CL_ANN, (CE_CONT,
3799 		    "mfi_state_transition_to_ready:FW state%x", fw_state));
3800 
3801 		switch (fw_state) {
3802 		case MFI_STATE_FAULT:
3803 			con_log(CL_ANN, (CE_NOTE,
3804 			    "mr_sas: FW in FAULT state!!"));
3805 
3806 			return (ENODEV);
3807 		case MFI_STATE_WAIT_HANDSHAKE:
3808 			/* set the CLR bit in IMR0 */
3809 			con_log(CL_ANN1, (CE_NOTE,
3810 			    "mr_sas: FW waiting for HANDSHAKE"));
3811 			/*
3812 			 * PCI_Hot Plug: MFI F/W requires
3813 			 * (MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG)
3814 			 * to be set
3815 			 */
3816 			/* WR_IB_MSG_0(MFI_INIT_CLEAR_HANDSHAKE, instance); */
3817 			if (!instance->tbolt) {
3818 				WR_IB_DOORBELL(MFI_INIT_CLEAR_HANDSHAKE |
3819 				    MFI_INIT_HOTPLUG, instance);
3820 			} else {
3821 				WR_RESERVED0_REGISTER(MFI_INIT_CLEAR_HANDSHAKE |
3822 				    MFI_INIT_HOTPLUG, instance);
3823 			}
3824 			max_wait	= (instance->tbolt == 1) ? 180 : 2;
3825 			cur_state	= MFI_STATE_WAIT_HANDSHAKE;
3826 			break;
3827 		case MFI_STATE_BOOT_MESSAGE_PENDING:
3828 			/* set the CLR bit in IMR0 */
3829 			con_log(CL_ANN1, (CE_NOTE,
3830 			    "mr_sas: FW state boot message pending"));
3831 			/*
3832 			 * PCI_Hot Plug: MFI F/W requires
3833 			 * (MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG)
3834 			 * to be set
3835 			 */
3836 			if (!instance->tbolt) {
3837 				WR_IB_DOORBELL(MFI_INIT_HOTPLUG, instance);
3838 			} else {
3839 				WR_RESERVED0_REGISTER(MFI_INIT_HOTPLUG,
3840 				    instance);
3841 			}
3842 			max_wait	= (instance->tbolt == 1) ? 180 : 10;
3843 			cur_state	= MFI_STATE_BOOT_MESSAGE_PENDING;
3844 			break;
3845 		case MFI_STATE_OPERATIONAL:
3846 			/* bring it to READY state; assuming max wait 2 secs */
3847 			instance->func_ptr->disable_intr(instance);
3848 			con_log(CL_ANN1, (CE_NOTE,
3849 			    "mr_sas: FW in OPERATIONAL state"));
3850 			/*
3851 			 * PCI_Hot Plug: MFI F/W requires
3852 			 * (MFI_INIT_READY | MFI_INIT_MFIMODE | MFI_INIT_ABORT)
3853 			 * to be set
3854 			 */
3855 			/* WR_IB_DOORBELL(MFI_INIT_READY, instance); */
3856 			if (!instance->tbolt) {
3857 				WR_IB_DOORBELL(MFI_RESET_FLAGS, instance);
3858 			} else {
3859 				WR_RESERVED0_REGISTER(MFI_RESET_FLAGS,
3860 				    instance);
3861 
3862 				for (i = 0; i < (10 * 1000); i++) {
3863 					status =
3864 					    RD_RESERVED0_REGISTER(instance);
3865 					if (status & 1) {
3866 						delay(1 *
3867 						    drv_usectohz(MILLISEC));
3868 					} else {
3869 						break;
3870 					}
3871 				}
3872 
3873 			}
3874 			max_wait	= (instance->tbolt == 1) ? 180 : 10;
3875 			cur_state	= MFI_STATE_OPERATIONAL;
3876 			break;
3877 		case MFI_STATE_UNDEFINED:
3878 			/* this state should not last for more than 2 seconds */
3879 			con_log(CL_ANN1, (CE_NOTE, "FW state undefined"));
3880 
3881 			max_wait	= (instance->tbolt == 1) ? 180 : 2;
3882 			cur_state	= MFI_STATE_UNDEFINED;
3883 			break;
3884 		case MFI_STATE_BB_INIT:
3885 			max_wait	= (instance->tbolt == 1) ? 180 : 2;
3886 			cur_state	= MFI_STATE_BB_INIT;
3887 			break;
3888 		case MFI_STATE_FW_INIT:
3889 			max_wait	= (instance->tbolt == 1) ? 180 : 2;
3890 			cur_state	= MFI_STATE_FW_INIT;
3891 			break;
3892 		case MFI_STATE_FW_INIT_2:
3893 			max_wait	= 180;
3894 			cur_state	= MFI_STATE_FW_INIT_2;
3895 			break;
3896 		case MFI_STATE_DEVICE_SCAN:
3897 			max_wait	= 180;
3898 			cur_state	= MFI_STATE_DEVICE_SCAN;
3899 			prev_abs_reg_val = cur_abs_reg_val;
3900 			con_log(CL_NONE, (CE_NOTE,
3901 			    "Device scan in progress ...\n"));
3902 			break;
3903 		case MFI_STATE_FLUSH_CACHE:
3904 			max_wait	= 180;
3905 			cur_state	= MFI_STATE_FLUSH_CACHE;
3906 			break;
3907 		default:
3908 			con_log(CL_ANN1, (CE_NOTE,
3909 			    "mr_sas: Unknown state 0x%x", fw_state));
3910 			return (ENODEV);
3911 		}
3912 
3913 		/* the cur_state should not last for more than max_wait secs */
3914 		for (i = 0; i < (max_wait * MILLISEC); i++) {
3915 			/* fw_state = RD_OB_MSG_0(instance) & MFI_STATE_MASK; */
3916 			cur_abs_reg_val =
3917 			    instance->func_ptr->read_fw_status_reg(instance);
3918 			fw_state = cur_abs_reg_val & MFI_STATE_MASK;
3919 
3920 			if (fw_state == cur_state) {
3921 				delay(1 * drv_usectohz(MILLISEC));
3922 			} else {
3923 				break;
3924 			}
3925 		}
3926 		if (fw_state == MFI_STATE_DEVICE_SCAN) {
3927 			if (prev_abs_reg_val != cur_abs_reg_val) {
3928 				continue;
3929 			}
3930 		}
3931 
3932 		/* return error if fw_state hasn't changed after max_wait */
3933 		if (fw_state == cur_state) {
3934 			con_log(CL_ANN1, (CE_WARN,
3935 			    "FW state hasn't changed in %d secs", max_wait));
3936 			return (ENODEV);
3937 		}
3938 	};
3939 
3940 	if (!instance->tbolt) {
3941 		fw_ctrl = RD_IB_DOORBELL(instance);
3942 		con_log(CL_ANN1, (CE_CONT,
3943 		    "mfi_state_transition_to_ready:FW ctrl = 0x%x", fw_ctrl));
3944 
3945 		/*
3946 		 * Write 0xF to the doorbell register to do the following.
3947 		 * - Abort all outstanding commands (bit 0).
3948 		 * - Transition from OPERATIONAL to READY state (bit 1).
3949 		 * - Discard (possible) low MFA posted in 64-bit mode (bit-2).
3950 		 * - Set to release FW to continue running (i.e. BIOS handshake
3951 		 *   (bit 3).
3952 		 */
3953 		WR_IB_DOORBELL(0xF, instance);
3954 	}
3955 
3956 	if (mrsas_check_acc_handle(instance->regmap_handle) != DDI_SUCCESS) {
3957 		return (EIO);
3958 	}
3959 
3960 	return (DDI_SUCCESS);
3961 }
3962 
3963 /*
3964  * get_seq_num
3965  */
3966 static int
3967 get_seq_num(struct mrsas_instance *instance,
3968     struct mrsas_evt_log_info *eli)
3969 {
3970 	int	ret = DDI_SUCCESS;
3971 
3972 	dma_obj_t			dcmd_dma_obj;
3973 	struct mrsas_cmd		*cmd;
3974 	struct mrsas_dcmd_frame		*dcmd;
3975 	struct mrsas_evt_log_info *eli_tmp;
3976 	if (instance->tbolt) {
3977 		cmd = get_raid_msg_mfi_pkt(instance);
3978 	} else {
3979 		cmd = get_mfi_pkt(instance);
3980 	}
3981 
3982 	if (!cmd) {
3983 		cmn_err(CE_WARN, "mr_sas: failed to get a cmd");
3984 		DTRACE_PROBE2(seq_num_mfi_err, uint16_t,
3985 		    instance->fw_outstanding, uint16_t, instance->max_fw_cmds);
3986 		return (ENOMEM);
3987 	}
3988 
3989 	/* Clear the frame buffer and assign back the context id */
3990 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
3991 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
3992 	    cmd->index);
3993 
3994 	dcmd = &cmd->frame->dcmd;
3995 
3996 	/* allocate the data transfer buffer */
3997 	dcmd_dma_obj.size = sizeof (struct mrsas_evt_log_info);
3998 	dcmd_dma_obj.dma_attr = mrsas_generic_dma_attr;
3999 	dcmd_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
4000 	dcmd_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
4001 	dcmd_dma_obj.dma_attr.dma_attr_sgllen = 1;
4002 	dcmd_dma_obj.dma_attr.dma_attr_align = 1;
4003 
4004 	if (mrsas_alloc_dma_obj(instance, &dcmd_dma_obj,
4005 	    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
4006 		cmn_err(CE_WARN,
4007 		    "get_seq_num: could not allocate data transfer buffer.");
4008 		return (DDI_FAILURE);
4009 	}
4010 
4011 	(void) memset(dcmd_dma_obj.buffer, 0,
4012 	    sizeof (struct mrsas_evt_log_info));
4013 
4014 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
4015 
4016 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
4017 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status, 0);
4018 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 1);
4019 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
4020 	    MFI_FRAME_DIR_READ);
4021 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
4022 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len,
4023 	    sizeof (struct mrsas_evt_log_info));
4024 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
4025 	    MR_DCMD_CTRL_EVENT_GET_INFO);
4026 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].length,
4027 	    sizeof (struct mrsas_evt_log_info));
4028 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].phys_addr,
4029 	    dcmd_dma_obj.dma_cookie[0].dmac_address);
4030 
4031 	cmd->sync_cmd = MRSAS_TRUE;
4032 	cmd->frame_count = 1;
4033 
4034 	if (instance->tbolt) {
4035 		mr_sas_tbolt_build_mfi_cmd(instance, cmd);
4036 	}
4037 
4038 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
4039 		cmn_err(CE_WARN, "get_seq_num: "
4040 		    "failed to issue MRSAS_DCMD_CTRL_EVENT_GET_INFO");
4041 		ret = DDI_FAILURE;
4042 	} else {
4043 		eli_tmp = (struct mrsas_evt_log_info *)dcmd_dma_obj.buffer;
4044 		eli->newest_seq_num = ddi_get32(cmd->frame_dma_obj.acc_handle,
4045 		    &eli_tmp->newest_seq_num);
4046 		ret = DDI_SUCCESS;
4047 	}
4048 
4049 	if (mrsas_free_dma_obj(instance, dcmd_dma_obj) != DDI_SUCCESS)
4050 		ret = DDI_FAILURE;
4051 
4052 	if (instance->tbolt) {
4053 		return_raid_msg_mfi_pkt(instance, cmd);
4054 	} else {
4055 		return_mfi_pkt(instance, cmd);
4056 	}
4057 
4058 	return (ret);
4059 }
4060 
4061 /*
4062  * start_mfi_aen
4063  */
4064 static int
4065 start_mfi_aen(struct mrsas_instance *instance)
4066 {
4067 	int	ret = 0;
4068 
4069 	struct mrsas_evt_log_info	eli;
4070 	union mrsas_evt_class_locale	class_locale;
4071 
4072 	/* get the latest sequence number from FW */
4073 	(void) memset(&eli, 0, sizeof (struct mrsas_evt_log_info));
4074 
4075 	if (get_seq_num(instance, &eli)) {
4076 		cmn_err(CE_WARN, "start_mfi_aen: failed to get seq num");
4077 		return (-1);
4078 	}
4079 
4080 	/* register AEN with FW for latest sequence number plus 1 */
4081 	class_locale.members.reserved	= 0;
4082 	class_locale.members.locale	= LE_16(MR_EVT_LOCALE_ALL);
4083 	class_locale.members.class	= MR_EVT_CLASS_INFO;
4084 	class_locale.word	= LE_32(class_locale.word);
4085 	ret = register_mfi_aen(instance, eli.newest_seq_num + 1,
4086 	    class_locale.word);
4087 
4088 	if (ret) {
4089 		cmn_err(CE_WARN, "start_mfi_aen: aen registration failed");
4090 		return (-1);
4091 	}
4092 
4093 
4094 	return (ret);
4095 }
4096 
4097 /*
4098  * flush_cache
4099  */
4100 static void
4101 flush_cache(struct mrsas_instance *instance)
4102 {
4103 	struct mrsas_cmd		*cmd = NULL;
4104 	struct mrsas_dcmd_frame		*dcmd;
4105 	if (instance->tbolt) {
4106 		cmd = get_raid_msg_mfi_pkt(instance);
4107 	} else {
4108 		cmd = get_mfi_pkt(instance);
4109 	}
4110 
4111 	if (!cmd) {
4112 		con_log(CL_ANN1, (CE_WARN,
4113 		    "flush_cache():Failed to get a cmd for flush_cache"));
4114 		DTRACE_PROBE2(flush_cache_err, uint16_t,
4115 		    instance->fw_outstanding, uint16_t, instance->max_fw_cmds);
4116 		return;
4117 	}
4118 
4119 	/* Clear the frame buffer and assign back the context id */
4120 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
4121 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
4122 	    cmd->index);
4123 
4124 	dcmd = &cmd->frame->dcmd;
4125 
4126 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
4127 
4128 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
4129 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status, 0x0);
4130 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 0);
4131 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
4132 	    MFI_FRAME_DIR_NONE);
4133 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
4134 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len, 0);
4135 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
4136 	    MR_DCMD_CTRL_CACHE_FLUSH);
4137 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->mbox.b[0],
4138 	    MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE);
4139 
4140 	cmd->frame_count = 1;
4141 
4142 	if (instance->tbolt) {
4143 		mr_sas_tbolt_build_mfi_cmd(instance, cmd);
4144 	}
4145 
4146 	if (instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
4147 		con_log(CL_ANN1, (CE_WARN,
4148 	    "flush_cache: failed to issue MFI_DCMD_CTRL_CACHE_FLUSH"));
4149 	}
4150 	con_log(CL_ANN1, (CE_CONT, "flush_cache done"));
4151 	if (instance->tbolt) {
4152 		return_raid_msg_mfi_pkt(instance, cmd);
4153 	} else {
4154 		return_mfi_pkt(instance, cmd);
4155 	}
4156 
4157 }
4158 
4159 /*
4160  * service_mfi_aen-	Completes an AEN command
4161  * @instance:			Adapter soft state
4162  * @cmd:			Command to be completed
4163  *
4164  */
4165 void
4166 service_mfi_aen(struct mrsas_instance *instance, struct mrsas_cmd *cmd)
4167 {
4168 	uint32_t	seq_num;
4169 	struct mrsas_evt_detail *evt_detail =
4170 	    (struct mrsas_evt_detail *)instance->mfi_evt_detail_obj.buffer;
4171 	int		rval = 0;
4172 	int		tgt = 0;
4173 	uint8_t		dtype;
4174 #ifdef PDSUPPORT
4175 	mrsas_pd_address_t	*pd_addr;
4176 #endif
4177 	ddi_acc_handle_t		acc_handle;
4178 
4179 	con_log(CL_ANN, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
4180 
4181 	acc_handle = cmd->frame_dma_obj.acc_handle;
4182 	cmd->cmd_status = ddi_get8(acc_handle, &cmd->frame->io.cmd_status);
4183 	if (cmd->cmd_status == ENODATA) {
4184 		cmd->cmd_status = 0;
4185 	}
4186 
4187 	/*
4188 	 * log the MFI AEN event to the sysevent queue so that
4189 	 * application will get noticed
4190 	 */
4191 	if (ddi_log_sysevent(instance->dip, DDI_VENDOR_LSI, "LSIMEGA", "SAS",
4192 	    NULL, NULL, DDI_NOSLEEP) != DDI_SUCCESS) {
4193 		int	instance_no = ddi_get_instance(instance->dip);
4194 		con_log(CL_ANN, (CE_WARN,
4195 		    "mr_sas%d: Failed to log AEN event", instance_no));
4196 	}
4197 	/*
4198 	 * Check for any ld devices that has changed state. i.e. online
4199 	 * or offline.
4200 	 */
4201 	con_log(CL_ANN1, (CE_CONT,
4202 	    "AEN: code = %x class = %x locale = %x args = %x",
4203 	    ddi_get32(acc_handle, &evt_detail->code),
4204 	    evt_detail->cl.members.class,
4205 	    ddi_get16(acc_handle, &evt_detail->cl.members.locale),
4206 	    ddi_get8(acc_handle, &evt_detail->arg_type)));
4207 
4208 	switch (ddi_get32(acc_handle, &evt_detail->code)) {
4209 	case MR_EVT_CFG_CLEARED: {
4210 		for (tgt = 0; tgt < MRDRV_MAX_LD; tgt++) {
4211 			if (instance->mr_ld_list[tgt].dip != NULL) {
4212 				mutex_enter(&instance->config_dev_mtx);
4213 				instance->mr_ld_list[tgt].flag =
4214 				    (uint8_t)~MRDRV_TGT_VALID;
4215 				mutex_exit(&instance->config_dev_mtx);
4216 				rval = mrsas_service_evt(instance, tgt, 0,
4217 				    MRSAS_EVT_UNCONFIG_TGT, NULL);
4218 				con_log(CL_ANN1, (CE_WARN,
4219 				    "mr_sas: CFG CLEARED AEN rval = %d "
4220 				    "tgt id = %d", rval, tgt));
4221 			}
4222 		}
4223 		break;
4224 	}
4225 
4226 	case MR_EVT_LD_DELETED: {
4227 		tgt = ddi_get16(acc_handle, &evt_detail->args.ld.target_id);
4228 		mutex_enter(&instance->config_dev_mtx);
4229 		instance->mr_ld_list[tgt].flag = (uint8_t)~MRDRV_TGT_VALID;
4230 		mutex_exit(&instance->config_dev_mtx);
4231 		rval = mrsas_service_evt(instance,
4232 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id), 0,
4233 		    MRSAS_EVT_UNCONFIG_TGT, NULL);
4234 		con_log(CL_ANN1, (CE_WARN, "mr_sas: LD DELETED AEN rval = %d "
4235 		    "tgt id = %d index = %d", rval,
4236 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id),
4237 		    ddi_get8(acc_handle, &evt_detail->args.ld.ld_index)));
4238 		break;
4239 	} /* End of MR_EVT_LD_DELETED */
4240 
4241 	case MR_EVT_LD_CREATED: {
4242 		rval = mrsas_service_evt(instance,
4243 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id), 0,
4244 		    MRSAS_EVT_CONFIG_TGT, NULL);
4245 		con_log(CL_ANN1, (CE_WARN, "mr_sas: LD CREATED AEN rval = %d "
4246 		    "tgt id = %d index = %d", rval,
4247 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id),
4248 		    ddi_get8(acc_handle, &evt_detail->args.ld.ld_index)));
4249 		break;
4250 	} /* End of MR_EVT_LD_CREATED */
4251 
4252 #ifdef PDSUPPORT
4253 	case MR_EVT_PD_REMOVED_EXT: {
4254 		if (instance->tbolt) {
4255 			pd_addr = &evt_detail->args.pd_addr;
4256 			dtype = pd_addr->scsi_dev_type;
4257 			con_log(CL_DLEVEL1, (CE_NOTE,
4258 			    " MR_EVT_PD_REMOVED_EXT: dtype = %x,"
4259 			    " arg_type = %d ", dtype, evt_detail->arg_type));
4260 			tgt = ddi_get16(acc_handle,
4261 			    &evt_detail->args.pd.device_id);
4262 			mutex_enter(&instance->config_dev_mtx);
4263 			instance->mr_tbolt_pd_list[tgt].flag =
4264 			    (uint8_t)~MRDRV_TGT_VALID;
4265 			mutex_exit(&instance->config_dev_mtx);
4266 			rval = mrsas_service_evt(instance, ddi_get16(
4267 			    acc_handle, &evt_detail->args.pd.device_id),
4268 			    1, MRSAS_EVT_UNCONFIG_TGT, NULL);
4269 			con_log(CL_ANN1, (CE_WARN, "mr_sas: PD_REMOVED:"
4270 			    "rval = %d tgt id = %d ", rval,
4271 			    ddi_get16(acc_handle,
4272 			    &evt_detail->args.pd.device_id)));
4273 		}
4274 		break;
4275 	} /* End of MR_EVT_PD_REMOVED_EXT */
4276 
4277 	case MR_EVT_PD_INSERTED_EXT: {
4278 		if (instance->tbolt) {
4279 			rval = mrsas_service_evt(instance,
4280 			    ddi_get16(acc_handle,
4281 			    &evt_detail->args.pd.device_id),
4282 			    1, MRSAS_EVT_CONFIG_TGT, NULL);
4283 			con_log(CL_ANN1, (CE_WARN, "mr_sas: PD_INSERTEDi_EXT:"
4284 			    "rval = %d tgt id = %d ", rval,
4285 			    ddi_get16(acc_handle,
4286 			    &evt_detail->args.pd.device_id)));
4287 		}
4288 		break;
4289 	} /* End of MR_EVT_PD_INSERTED_EXT */
4290 
4291 	case MR_EVT_PD_STATE_CHANGE: {
4292 		if (instance->tbolt) {
4293 			tgt = ddi_get16(acc_handle,
4294 			    &evt_detail->args.pd.device_id);
4295 			if ((evt_detail->args.pd_state.prevState ==
4296 			    PD_SYSTEM) &&
4297 			    (evt_detail->args.pd_state.newState != PD_SYSTEM)) {
4298 				mutex_enter(&instance->config_dev_mtx);
4299 				instance->mr_tbolt_pd_list[tgt].flag =
4300 				    (uint8_t)~MRDRV_TGT_VALID;
4301 				mutex_exit(&instance->config_dev_mtx);
4302 				rval = mrsas_service_evt(instance,
4303 				    ddi_get16(acc_handle,
4304 				    &evt_detail->args.pd.device_id),
4305 				    1, MRSAS_EVT_UNCONFIG_TGT, NULL);
4306 				con_log(CL_ANN1, (CE_WARN, "mr_sas: PD_REMOVED:"
4307 				    "rval = %d tgt id = %d ", rval,
4308 				    ddi_get16(acc_handle,
4309 				    &evt_detail->args.pd.device_id)));
4310 				break;
4311 			}
4312 			if ((evt_detail->args.pd_state.prevState
4313 			    == UNCONFIGURED_GOOD) &&
4314 			    (evt_detail->args.pd_state.newState == PD_SYSTEM)) {
4315 				rval = mrsas_service_evt(instance,
4316 				    ddi_get16(acc_handle,
4317 				    &evt_detail->args.pd.device_id),
4318 				    1, MRSAS_EVT_CONFIG_TGT, NULL);
4319 				con_log(CL_ANN1, (CE_WARN,
4320 				    "mr_sas: PD_INSERTED: rval = %d "
4321 				    " tgt id = %d ", rval,
4322 				    ddi_get16(acc_handle,
4323 				    &evt_detail->args.pd.device_id)));
4324 				break;
4325 			}
4326 		}
4327 		break;
4328 	}
4329 #endif
4330 
4331 	} /* End of Main Switch */
4332 
4333 	/* get copy of seq_num and class/locale for re-registration */
4334 	seq_num = ddi_get32(acc_handle, &evt_detail->seq_num);
4335 	seq_num++;
4336 	(void) memset(instance->mfi_evt_detail_obj.buffer, 0,
4337 	    sizeof (struct mrsas_evt_detail));
4338 
4339 	ddi_put8(acc_handle, &cmd->frame->dcmd.cmd_status, 0x0);
4340 	ddi_put32(acc_handle, &cmd->frame->dcmd.mbox.w[0], seq_num);
4341 
4342 	instance->aen_seq_num = seq_num;
4343 
4344 	cmd->frame_count = 1;
4345 
4346 	cmd->retry_count_for_ocr = 0;
4347 	cmd->drv_pkt_time = 0;
4348 
4349 	/* Issue the aen registration frame */
4350 	instance->func_ptr->issue_cmd(cmd, instance);
4351 }
4352 
4353 /*
4354  * complete_cmd_in_sync_mode -	Completes an internal command
4355  * @instance:			Adapter soft state
4356  * @cmd:			Command to be completed
4357  *
4358  * The issue_cmd_in_sync_mode() function waits for a command to complete
4359  * after it issues a command. This function wakes up that waiting routine by
4360  * calling wake_up() on the wait queue.
4361  */
4362 static void
4363 complete_cmd_in_sync_mode(struct mrsas_instance *instance,
4364     struct mrsas_cmd *cmd)
4365 {
4366 	cmd->cmd_status = ddi_get8(cmd->frame_dma_obj.acc_handle,
4367 	    &cmd->frame->io.cmd_status);
4368 
4369 	cmd->sync_cmd = MRSAS_FALSE;
4370 
4371 	con_log(CL_ANN1, (CE_NOTE, "complete_cmd_in_sync_mode called %p \n",
4372 	    (void *)cmd));
4373 
4374 	mutex_enter(&instance->int_cmd_mtx);
4375 	if (cmd->cmd_status == ENODATA) {
4376 		cmd->cmd_status = 0;
4377 	}
4378 	cv_broadcast(&instance->int_cmd_cv);
4379 	mutex_exit(&instance->int_cmd_mtx);
4380 
4381 }
4382 
4383 /*
4384  * Call this function inside mrsas_softintr.
4385  * mrsas_initiate_ocr_if_fw_is_faulty  - Initiates OCR if FW status is faulty
4386  * @instance:			Adapter soft state
4387  */
4388 
4389 static uint32_t
4390 mrsas_initiate_ocr_if_fw_is_faulty(struct mrsas_instance *instance)
4391 {
4392 	uint32_t	cur_abs_reg_val;
4393 	uint32_t	fw_state;
4394 
4395 	cur_abs_reg_val =  instance->func_ptr->read_fw_status_reg(instance);
4396 	fw_state = cur_abs_reg_val & MFI_STATE_MASK;
4397 	if (fw_state == MFI_STATE_FAULT) {
4398 		if (instance->disable_online_ctrl_reset == 1) {
4399 			cmn_err(CE_WARN,
4400 			    "mrsas_initiate_ocr_if_fw_is_faulty: "
4401 			    "FW in Fault state, detected in ISR: "
4402 			    "FW doesn't support ocr ");
4403 
4404 			return (ADAPTER_RESET_NOT_REQUIRED);
4405 		} else {
4406 			con_log(CL_ANN, (CE_NOTE,
4407 			    "mrsas_initiate_ocr_if_fw_is_faulty: FW in Fault "
4408 			    "state, detected in ISR: FW supports ocr "));
4409 
4410 			return (ADAPTER_RESET_REQUIRED);
4411 		}
4412 	}
4413 
4414 	return (ADAPTER_RESET_NOT_REQUIRED);
4415 }
4416 
4417 /*
4418  * mrsas_softintr - The Software ISR
4419  * @param arg	: HBA soft state
4420  *
4421  * called from high-level interrupt if hi-level interrupt are not there,
4422  * otherwise triggered as a soft interrupt
4423  */
4424 static uint_t
4425 mrsas_softintr(struct mrsas_instance *instance)
4426 {
4427 	struct scsi_pkt		*pkt;
4428 	struct scsa_cmd		*acmd;
4429 	struct mrsas_cmd	*cmd;
4430 	struct mlist_head	*pos, *next;
4431 	mlist_t			process_list;
4432 	struct mrsas_header	*hdr;
4433 	struct scsi_arq_status	*arqstat;
4434 
4435 	con_log(CL_ANN1, (CE_NOTE, "mrsas_softintr() called."));
4436 
4437 	ASSERT(instance);
4438 
4439 	mutex_enter(&instance->completed_pool_mtx);
4440 
4441 	if (mlist_empty(&instance->completed_pool_list)) {
4442 		mutex_exit(&instance->completed_pool_mtx);
4443 		return (DDI_INTR_CLAIMED);
4444 	}
4445 
4446 	instance->softint_running = 1;
4447 
4448 	INIT_LIST_HEAD(&process_list);
4449 	mlist_splice(&instance->completed_pool_list, &process_list);
4450 	INIT_LIST_HEAD(&instance->completed_pool_list);
4451 
4452 	mutex_exit(&instance->completed_pool_mtx);
4453 
4454 	/* perform all callbacks first, before releasing the SCBs */
4455 	mlist_for_each_safe(pos, next, &process_list) {
4456 		cmd = mlist_entry(pos, struct mrsas_cmd, list);
4457 
4458 		/* syncronize the Cmd frame for the controller */
4459 		(void) ddi_dma_sync(cmd->frame_dma_obj.dma_handle,
4460 		    0, 0, DDI_DMA_SYNC_FORCPU);
4461 
4462 		if (mrsas_check_dma_handle(cmd->frame_dma_obj.dma_handle) !=
4463 		    DDI_SUCCESS) {
4464 			mrsas_fm_ereport(instance, DDI_FM_DEVICE_NO_RESPONSE);
4465 			ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
4466 			con_log(CL_ANN1, (CE_WARN,
4467 			    "mrsas_softintr: "
4468 			    "FMA check reports DMA handle failure"));
4469 			return (DDI_INTR_CLAIMED);
4470 		}
4471 
4472 		hdr = &cmd->frame->hdr;
4473 
4474 		/* remove the internal command from the process list */
4475 		mlist_del_init(&cmd->list);
4476 
4477 		switch (ddi_get8(cmd->frame_dma_obj.acc_handle, &hdr->cmd)) {
4478 		case MFI_CMD_OP_PD_SCSI:
4479 		case MFI_CMD_OP_LD_SCSI:
4480 		case MFI_CMD_OP_LD_READ:
4481 		case MFI_CMD_OP_LD_WRITE:
4482 			/*
4483 			 * MFI_CMD_OP_PD_SCSI and MFI_CMD_OP_LD_SCSI
4484 			 * could have been issued either through an
4485 			 * IO path or an IOCTL path. If it was via IOCTL,
4486 			 * we will send it to internal completion.
4487 			 */
4488 			if (cmd->sync_cmd == MRSAS_TRUE) {
4489 				complete_cmd_in_sync_mode(instance, cmd);
4490 				break;
4491 			}
4492 
4493 			/* regular commands */
4494 			acmd =	cmd->cmd;
4495 			pkt =	CMD2PKT(acmd);
4496 
4497 			if (acmd->cmd_flags & CFLAG_DMAVALID) {
4498 				if (acmd->cmd_flags & CFLAG_CONSISTENT) {
4499 					(void) ddi_dma_sync(acmd->cmd_dmahandle,
4500 					    acmd->cmd_dma_offset,
4501 					    acmd->cmd_dma_len,
4502 					    DDI_DMA_SYNC_FORCPU);
4503 				}
4504 			}
4505 
4506 			pkt->pkt_reason		= CMD_CMPLT;
4507 			pkt->pkt_statistics	= 0;
4508 			pkt->pkt_state = STATE_GOT_BUS
4509 			    | STATE_GOT_TARGET | STATE_SENT_CMD
4510 			    | STATE_XFERRED_DATA | STATE_GOT_STATUS;
4511 
4512 			con_log(CL_ANN, (CE_CONT,
4513 			    "CDB[0] = %x completed for %s: size %lx context %x",
4514 			    pkt->pkt_cdbp[0], ((acmd->islogical) ? "LD" : "PD"),
4515 			    acmd->cmd_dmacount, hdr->context));
4516 			DTRACE_PROBE3(softintr_cdb, uint8_t, pkt->pkt_cdbp[0],
4517 			    uint_t, acmd->cmd_cdblen, ulong_t,
4518 			    acmd->cmd_dmacount);
4519 
4520 			if (pkt->pkt_cdbp[0] == SCMD_INQUIRY) {
4521 				struct scsi_inquiry	*inq;
4522 
4523 				if (acmd->cmd_dmacount != 0) {
4524 					bp_mapin(acmd->cmd_buf);
4525 					inq = (struct scsi_inquiry *)
4526 					    acmd->cmd_buf->b_un.b_addr;
4527 
4528 					/* don't expose physical drives to OS */
4529 					if (acmd->islogical &&
4530 					    (hdr->cmd_status == MFI_STAT_OK)) {
4531 						display_scsi_inquiry(
4532 						    (caddr_t)inq);
4533 					} else if ((hdr->cmd_status ==
4534 					    MFI_STAT_OK) && inq->inq_dtype ==
4535 					    DTYPE_DIRECT) {
4536 
4537 						display_scsi_inquiry(
4538 						    (caddr_t)inq);
4539 
4540 						/* for physical disk */
4541 						hdr->cmd_status =
4542 						    MFI_STAT_DEVICE_NOT_FOUND;
4543 					}
4544 				}
4545 			}
4546 
4547 			DTRACE_PROBE2(softintr_done, uint8_t, hdr->cmd,
4548 			    uint8_t, hdr->cmd_status);
4549 
4550 			switch (hdr->cmd_status) {
4551 			case MFI_STAT_OK:
4552 				pkt->pkt_scbp[0] = STATUS_GOOD;
4553 				break;
4554 			case MFI_STAT_LD_CC_IN_PROGRESS:
4555 			case MFI_STAT_LD_RECON_IN_PROGRESS:
4556 				pkt->pkt_scbp[0] = STATUS_GOOD;
4557 				break;
4558 			case MFI_STAT_LD_INIT_IN_PROGRESS:
4559 				con_log(CL_ANN,
4560 				    (CE_WARN, "Initialization in Progress"));
4561 				pkt->pkt_reason	= CMD_TRAN_ERR;
4562 
4563 				break;
4564 			case MFI_STAT_SCSI_DONE_WITH_ERROR:
4565 				con_log(CL_ANN, (CE_CONT, "scsi_done error"));
4566 
4567 				pkt->pkt_reason	= CMD_CMPLT;
4568 				((struct scsi_status *)
4569 				    pkt->pkt_scbp)->sts_chk = 1;
4570 
4571 				if (pkt->pkt_cdbp[0] == SCMD_TEST_UNIT_READY) {
4572 					con_log(CL_ANN,
4573 					    (CE_WARN, "TEST_UNIT_READY fail"));
4574 				} else {
4575 					pkt->pkt_state |= STATE_ARQ_DONE;
4576 					arqstat = (void *)(pkt->pkt_scbp);
4577 					arqstat->sts_rqpkt_reason = CMD_CMPLT;
4578 					arqstat->sts_rqpkt_resid = 0;
4579 					arqstat->sts_rqpkt_state |=
4580 					    STATE_GOT_BUS | STATE_GOT_TARGET
4581 					    | STATE_SENT_CMD
4582 					    | STATE_XFERRED_DATA;
4583 					*(uint8_t *)&arqstat->sts_rqpkt_status =
4584 					    STATUS_GOOD;
4585 					ddi_rep_get8(
4586 					    cmd->frame_dma_obj.acc_handle,
4587 					    (uint8_t *)
4588 					    &(arqstat->sts_sensedata),
4589 					    cmd->sense,
4590 					    sizeof (struct scsi_extended_sense),
4591 					    DDI_DEV_AUTOINCR);
4592 				}
4593 				break;
4594 			case MFI_STAT_LD_OFFLINE:
4595 			case MFI_STAT_DEVICE_NOT_FOUND:
4596 				con_log(CL_ANN, (CE_CONT,
4597 				"mrsas_softintr:device not found error"));
4598 				pkt->pkt_reason	= CMD_DEV_GONE;
4599 				pkt->pkt_statistics  = STAT_DISCON;
4600 				break;
4601 			case MFI_STAT_LD_LBA_OUT_OF_RANGE:
4602 				pkt->pkt_state |= STATE_ARQ_DONE;
4603 				pkt->pkt_reason	= CMD_CMPLT;
4604 				((struct scsi_status *)
4605 				    pkt->pkt_scbp)->sts_chk = 1;
4606 
4607 				arqstat = (void *)(pkt->pkt_scbp);
4608 				arqstat->sts_rqpkt_reason = CMD_CMPLT;
4609 				arqstat->sts_rqpkt_resid = 0;
4610 				arqstat->sts_rqpkt_state |= STATE_GOT_BUS
4611 				    | STATE_GOT_TARGET | STATE_SENT_CMD
4612 				    | STATE_XFERRED_DATA;
4613 				*(uint8_t *)&arqstat->sts_rqpkt_status =
4614 				    STATUS_GOOD;
4615 
4616 				arqstat->sts_sensedata.es_valid = 1;
4617 				arqstat->sts_sensedata.es_key =
4618 				    KEY_ILLEGAL_REQUEST;
4619 				arqstat->sts_sensedata.es_class =
4620 				    CLASS_EXTENDED_SENSE;
4621 
4622 				/*
4623 				 * LOGICAL BLOCK ADDRESS OUT OF RANGE:
4624 				 * ASC: 0x21h; ASCQ: 0x00h;
4625 				 */
4626 				arqstat->sts_sensedata.es_add_code = 0x21;
4627 				arqstat->sts_sensedata.es_qual_code = 0x00;
4628 
4629 				break;
4630 
4631 			default:
4632 				con_log(CL_ANN, (CE_CONT, "Unknown status!"));
4633 				pkt->pkt_reason	= CMD_TRAN_ERR;
4634 
4635 				break;
4636 			}
4637 
4638 			atomic_add_16(&instance->fw_outstanding, (-1));
4639 
4640 			(void) mrsas_common_check(instance, cmd);
4641 
4642 			if (acmd->cmd_dmahandle) {
4643 				if (mrsas_check_dma_handle(
4644 				    acmd->cmd_dmahandle) != DDI_SUCCESS) {
4645 					ddi_fm_service_impact(instance->dip,
4646 					    DDI_SERVICE_UNAFFECTED);
4647 					pkt->pkt_reason = CMD_TRAN_ERR;
4648 					pkt->pkt_statistics = 0;
4649 				}
4650 			}
4651 
4652 			/* Call the callback routine */
4653 			if (((pkt->pkt_flags & FLAG_NOINTR) == 0) &&
4654 			    pkt->pkt_comp) {
4655 
4656 				con_log(CL_DLEVEL1, (CE_NOTE, "mrsas_softintr: "
4657 				    "posting to scsa cmd %p index %x pkt %p "
4658 				    "time %llx", (void *)cmd, cmd->index,
4659 				    (void *)pkt, gethrtime()));
4660 				(*pkt->pkt_comp)(pkt);
4661 
4662 			}
4663 
4664 			return_mfi_pkt(instance, cmd);
4665 			break;
4666 
4667 		case MFI_CMD_OP_SMP:
4668 		case MFI_CMD_OP_STP:
4669 			complete_cmd_in_sync_mode(instance, cmd);
4670 			break;
4671 
4672 		case MFI_CMD_OP_DCMD:
4673 			/* see if got an event notification */
4674 			if (ddi_get32(cmd->frame_dma_obj.acc_handle,
4675 			    &cmd->frame->dcmd.opcode) ==
4676 			    MR_DCMD_CTRL_EVENT_WAIT) {
4677 				if ((instance->aen_cmd == cmd) &&
4678 				    (instance->aen_cmd->abort_aen)) {
4679 					con_log(CL_ANN, (CE_WARN,
4680 					    "mrsas_softintr: "
4681 					    "aborted_aen returned"));
4682 				} else {
4683 					atomic_add_16(&instance->fw_outstanding,
4684 					    (-1));
4685 					service_mfi_aen(instance, cmd);
4686 				}
4687 			} else {
4688 				complete_cmd_in_sync_mode(instance, cmd);
4689 			}
4690 
4691 			break;
4692 
4693 		case MFI_CMD_OP_ABORT:
4694 			con_log(CL_ANN, (CE_NOTE, "MFI_CMD_OP_ABORT complete"));
4695 			/*
4696 			 * MFI_CMD_OP_ABORT successfully completed
4697 			 * in the synchronous mode
4698 			 */
4699 			complete_cmd_in_sync_mode(instance, cmd);
4700 			break;
4701 
4702 		default:
4703 			mrsas_fm_ereport(instance, DDI_FM_DEVICE_NO_RESPONSE);
4704 			ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
4705 
4706 			if (cmd->pkt != NULL) {
4707 				pkt = cmd->pkt;
4708 				if (((pkt->pkt_flags & FLAG_NOINTR) == 0) &&
4709 				    pkt->pkt_comp) {
4710 
4711 					con_log(CL_ANN1, (CE_CONT, "posting to "
4712 					    "scsa cmd %p index %x pkt %p"
4713 					    "time %llx, default ", (void *)cmd,
4714 					    cmd->index, (void *)pkt,
4715 					    gethrtime()));
4716 
4717 					(*pkt->pkt_comp)(pkt);
4718 
4719 				}
4720 			}
4721 			con_log(CL_ANN, (CE_WARN, "Cmd type unknown !"));
4722 			break;
4723 		}
4724 	}
4725 
4726 	instance->softint_running = 0;
4727 
4728 	return (DDI_INTR_CLAIMED);
4729 }
4730 
4731 /*
4732  * mrsas_alloc_dma_obj
4733  *
4734  * Allocate the memory and other resources for an dma object.
4735  */
4736 int
4737 mrsas_alloc_dma_obj(struct mrsas_instance *instance, dma_obj_t *obj,
4738     uchar_t endian_flags)
4739 {
4740 	int	i;
4741 	size_t	alen = 0;
4742 	uint_t	cookie_cnt;
4743 	struct ddi_device_acc_attr tmp_endian_attr;
4744 
4745 	tmp_endian_attr = endian_attr;
4746 	tmp_endian_attr.devacc_attr_endian_flags = endian_flags;
4747 	tmp_endian_attr.devacc_attr_access = DDI_DEFAULT_ACC;
4748 
4749 	i = ddi_dma_alloc_handle(instance->dip, &obj->dma_attr,
4750 	    DDI_DMA_SLEEP, NULL, &obj->dma_handle);
4751 	if (i != DDI_SUCCESS) {
4752 
4753 		switch (i) {
4754 			case DDI_DMA_BADATTR :
4755 				con_log(CL_ANN, (CE_WARN,
4756 				"Failed ddi_dma_alloc_handle- Bad attribute"));
4757 				break;
4758 			case DDI_DMA_NORESOURCES :
4759 				con_log(CL_ANN, (CE_WARN,
4760 				"Failed ddi_dma_alloc_handle- No Resources"));
4761 				break;
4762 			default :
4763 				con_log(CL_ANN, (CE_WARN,
4764 				"Failed ddi_dma_alloc_handle: "
4765 				"unknown status %d", i));
4766 				break;
4767 		}
4768 
4769 		return (-1);
4770 	}
4771 
4772 	if ((ddi_dma_mem_alloc(obj->dma_handle, obj->size, &tmp_endian_attr,
4773 	    DDI_DMA_RDWR | DDI_DMA_STREAMING, DDI_DMA_SLEEP, NULL,
4774 	    &obj->buffer, &alen, &obj->acc_handle) != DDI_SUCCESS) ||
4775 	    alen < obj->size) {
4776 
4777 		ddi_dma_free_handle(&obj->dma_handle);
4778 
4779 		con_log(CL_ANN, (CE_WARN, "Failed : ddi_dma_mem_alloc"));
4780 
4781 		return (-1);
4782 	}
4783 
4784 	if (ddi_dma_addr_bind_handle(obj->dma_handle, NULL, obj->buffer,
4785 	    obj->size, DDI_DMA_RDWR | DDI_DMA_STREAMING, DDI_DMA_SLEEP,
4786 	    NULL, &obj->dma_cookie[0], &cookie_cnt) != DDI_SUCCESS) {
4787 
4788 		ddi_dma_mem_free(&obj->acc_handle);
4789 		ddi_dma_free_handle(&obj->dma_handle);
4790 
4791 		con_log(CL_ANN, (CE_WARN, "Failed : ddi_dma_addr_bind_handle"));
4792 
4793 		return (-1);
4794 	}
4795 
4796 	if (mrsas_check_dma_handle(obj->dma_handle) != DDI_SUCCESS) {
4797 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
4798 		return (-1);
4799 	}
4800 
4801 	if (mrsas_check_acc_handle(obj->acc_handle) != DDI_SUCCESS) {
4802 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
4803 		return (-1);
4804 	}
4805 
4806 	return (cookie_cnt);
4807 }
4808 
4809 /*
4810  * mrsas_free_dma_obj(struct mrsas_instance *, dma_obj_t)
4811  *
4812  * De-allocate the memory and other resources for an dma object, which must
4813  * have been alloated by a previous call to mrsas_alloc_dma_obj()
4814  */
4815 int
4816 mrsas_free_dma_obj(struct mrsas_instance *instance, dma_obj_t obj)
4817 {
4818 
4819 	if ((obj.dma_handle == NULL) || (obj.acc_handle == NULL)) {
4820 		return (DDI_SUCCESS);
4821 	}
4822 
4823 	/*
4824 	 * NOTE: These check-handle functions fail if *_handle == NULL, but
4825 	 * this function succeeds because of the previous check.
4826 	 */
4827 	if (mrsas_check_dma_handle(obj.dma_handle) != DDI_SUCCESS) {
4828 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
4829 		return (DDI_FAILURE);
4830 	}
4831 
4832 	if (mrsas_check_acc_handle(obj.acc_handle) != DDI_SUCCESS) {
4833 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
4834 		return (DDI_FAILURE);
4835 	}
4836 
4837 	(void) ddi_dma_unbind_handle(obj.dma_handle);
4838 	ddi_dma_mem_free(&obj.acc_handle);
4839 	ddi_dma_free_handle(&obj.dma_handle);
4840 	obj.acc_handle = NULL;
4841 	return (DDI_SUCCESS);
4842 }
4843 
4844 /*
4845  * mrsas_dma_alloc(instance_t *, struct scsi_pkt *, struct buf *,
4846  * int, int (*)())
4847  *
4848  * Allocate dma resources for a new scsi command
4849  */
4850 int
4851 mrsas_dma_alloc(struct mrsas_instance *instance, struct scsi_pkt *pkt,
4852     struct buf *bp, int flags, int (*callback)())
4853 {
4854 	int	dma_flags;
4855 	int	(*cb)(caddr_t);
4856 	int	i;
4857 
4858 	ddi_dma_attr_t	tmp_dma_attr = mrsas_generic_dma_attr;
4859 	struct scsa_cmd	*acmd = PKT2CMD(pkt);
4860 
4861 	acmd->cmd_buf = bp;
4862 
4863 	if (bp->b_flags & B_READ) {
4864 		acmd->cmd_flags &= ~CFLAG_DMASEND;
4865 		dma_flags = DDI_DMA_READ;
4866 	} else {
4867 		acmd->cmd_flags |= CFLAG_DMASEND;
4868 		dma_flags = DDI_DMA_WRITE;
4869 	}
4870 
4871 	if (flags & PKT_CONSISTENT) {
4872 		acmd->cmd_flags |= CFLAG_CONSISTENT;
4873 		dma_flags |= DDI_DMA_CONSISTENT;
4874 	}
4875 
4876 	if (flags & PKT_DMA_PARTIAL) {
4877 		dma_flags |= DDI_DMA_PARTIAL;
4878 	}
4879 
4880 	dma_flags |= DDI_DMA_REDZONE;
4881 
4882 	cb = (callback == NULL_FUNC) ? DDI_DMA_DONTWAIT : DDI_DMA_SLEEP;
4883 
4884 	tmp_dma_attr.dma_attr_sgllen = instance->max_num_sge;
4885 	tmp_dma_attr.dma_attr_addr_hi = 0xffffffffffffffffull;
4886 	if (instance->tbolt) {
4887 		/* OCR-RESET FIX */
4888 		tmp_dma_attr.dma_attr_count_max =
4889 		    (U64)mrsas_tbolt_max_cap_maxxfer;  /* limit to 256K */
4890 		tmp_dma_attr.dma_attr_maxxfer =
4891 		    (U64)mrsas_tbolt_max_cap_maxxfer;  /* limit to 256K */
4892 	}
4893 
4894 	if ((i = ddi_dma_alloc_handle(instance->dip, &tmp_dma_attr,
4895 	    cb, 0, &acmd->cmd_dmahandle)) != DDI_SUCCESS) {
4896 		switch (i) {
4897 		case DDI_DMA_BADATTR:
4898 			bioerror(bp, EFAULT);
4899 			return (DDI_FAILURE);
4900 
4901 		case DDI_DMA_NORESOURCES:
4902 			bioerror(bp, 0);
4903 			return (DDI_FAILURE);
4904 
4905 		default:
4906 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_alloc_handle: "
4907 			    "impossible result (0x%x)", i));
4908 			bioerror(bp, EFAULT);
4909 			return (DDI_FAILURE);
4910 		}
4911 	}
4912 
4913 	i = ddi_dma_buf_bind_handle(acmd->cmd_dmahandle, bp, dma_flags,
4914 	    cb, 0, &acmd->cmd_dmacookies[0], &acmd->cmd_ncookies);
4915 
4916 	switch (i) {
4917 	case DDI_DMA_PARTIAL_MAP:
4918 		if ((dma_flags & DDI_DMA_PARTIAL) == 0) {
4919 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_buf_bind_handle: "
4920 			    "DDI_DMA_PARTIAL_MAP impossible"));
4921 			goto no_dma_cookies;
4922 		}
4923 
4924 		if (ddi_dma_numwin(acmd->cmd_dmahandle, &acmd->cmd_nwin) ==
4925 		    DDI_FAILURE) {
4926 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_numwin failed"));
4927 			goto no_dma_cookies;
4928 		}
4929 
4930 		if (ddi_dma_getwin(acmd->cmd_dmahandle, acmd->cmd_curwin,
4931 		    &acmd->cmd_dma_offset, &acmd->cmd_dma_len,
4932 		    &acmd->cmd_dmacookies[0], &acmd->cmd_ncookies) ==
4933 		    DDI_FAILURE) {
4934 
4935 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_getwin failed"));
4936 			goto no_dma_cookies;
4937 		}
4938 
4939 		goto get_dma_cookies;
4940 	case DDI_DMA_MAPPED:
4941 		acmd->cmd_nwin = 1;
4942 		acmd->cmd_dma_len = 0;
4943 		acmd->cmd_dma_offset = 0;
4944 
4945 get_dma_cookies:
4946 		i = 0;
4947 		acmd->cmd_dmacount = 0;
4948 		for (;;) {
4949 			acmd->cmd_dmacount +=
4950 			    acmd->cmd_dmacookies[i++].dmac_size;
4951 
4952 			if (i == instance->max_num_sge ||
4953 			    i == acmd->cmd_ncookies)
4954 				break;
4955 
4956 			ddi_dma_nextcookie(acmd->cmd_dmahandle,
4957 			    &acmd->cmd_dmacookies[i]);
4958 		}
4959 
4960 		acmd->cmd_cookie = i;
4961 		acmd->cmd_cookiecnt = i;
4962 
4963 		acmd->cmd_flags |= CFLAG_DMAVALID;
4964 
4965 		if (bp->b_bcount >= acmd->cmd_dmacount) {
4966 			pkt->pkt_resid = bp->b_bcount - acmd->cmd_dmacount;
4967 		} else {
4968 			pkt->pkt_resid = 0;
4969 		}
4970 
4971 		return (DDI_SUCCESS);
4972 	case DDI_DMA_NORESOURCES:
4973 		bioerror(bp, 0);
4974 		break;
4975 	case DDI_DMA_NOMAPPING:
4976 		bioerror(bp, EFAULT);
4977 		break;
4978 	case DDI_DMA_TOOBIG:
4979 		bioerror(bp, EINVAL);
4980 		break;
4981 	case DDI_DMA_INUSE:
4982 		con_log(CL_ANN, (CE_PANIC, "ddi_dma_buf_bind_handle:"
4983 		    " DDI_DMA_INUSE impossible"));
4984 		break;
4985 	default:
4986 		con_log(CL_ANN, (CE_PANIC, "ddi_dma_buf_bind_handle: "
4987 		    "impossible result (0x%x)", i));
4988 		break;
4989 	}
4990 
4991 no_dma_cookies:
4992 	ddi_dma_free_handle(&acmd->cmd_dmahandle);
4993 	acmd->cmd_dmahandle = NULL;
4994 	acmd->cmd_flags &= ~CFLAG_DMAVALID;
4995 	return (DDI_FAILURE);
4996 }
4997 
4998 /*
4999  * mrsas_dma_move(struct mrsas_instance *, struct scsi_pkt *, struct buf *)
5000  *
5001  * move dma resources to next dma window
5002  *
5003  */
5004 int
5005 mrsas_dma_move(struct mrsas_instance *instance, struct scsi_pkt *pkt,
5006     struct buf *bp)
5007 {
5008 	int	i = 0;
5009 
5010 	struct scsa_cmd	*acmd = PKT2CMD(pkt);
5011 
5012 	/*
5013 	 * If there are no more cookies remaining in this window,
5014 	 * must move to the next window first.
5015 	 */
5016 	if (acmd->cmd_cookie == acmd->cmd_ncookies) {
5017 		if (acmd->cmd_curwin == acmd->cmd_nwin && acmd->cmd_nwin == 1) {
5018 			return (DDI_SUCCESS);
5019 		}
5020 
5021 		/* at last window, cannot move */
5022 		if (++acmd->cmd_curwin >= acmd->cmd_nwin) {
5023 			return (DDI_FAILURE);
5024 		}
5025 
5026 		if (ddi_dma_getwin(acmd->cmd_dmahandle, acmd->cmd_curwin,
5027 		    &acmd->cmd_dma_offset, &acmd->cmd_dma_len,
5028 		    &acmd->cmd_dmacookies[0], &acmd->cmd_ncookies) ==
5029 		    DDI_FAILURE) {
5030 			return (DDI_FAILURE);
5031 		}
5032 
5033 		acmd->cmd_cookie = 0;
5034 	} else {
5035 		/* still more cookies in this window - get the next one */
5036 		ddi_dma_nextcookie(acmd->cmd_dmahandle,
5037 		    &acmd->cmd_dmacookies[0]);
5038 	}
5039 
5040 	/* get remaining cookies in this window, up to our maximum */
5041 	for (;;) {
5042 		acmd->cmd_dmacount += acmd->cmd_dmacookies[i++].dmac_size;
5043 		acmd->cmd_cookie++;
5044 
5045 		if (i == instance->max_num_sge ||
5046 		    acmd->cmd_cookie == acmd->cmd_ncookies) {
5047 			break;
5048 		}
5049 
5050 		ddi_dma_nextcookie(acmd->cmd_dmahandle,
5051 		    &acmd->cmd_dmacookies[i]);
5052 	}
5053 
5054 	acmd->cmd_cookiecnt = i;
5055 
5056 	if (bp->b_bcount >= acmd->cmd_dmacount) {
5057 		pkt->pkt_resid = bp->b_bcount - acmd->cmd_dmacount;
5058 	} else {
5059 		pkt->pkt_resid = 0;
5060 	}
5061 
5062 	return (DDI_SUCCESS);
5063 }
5064 
5065 /*
5066  * build_cmd
5067  */
5068 static struct mrsas_cmd *
5069 build_cmd(struct mrsas_instance *instance, struct scsi_address *ap,
5070     struct scsi_pkt *pkt, uchar_t *cmd_done)
5071 {
5072 	uint16_t	flags = 0;
5073 	uint32_t	i;
5074 	uint32_t	context;
5075 	uint32_t	sge_bytes;
5076 	uint32_t	tmp_data_xfer_len;
5077 	ddi_acc_handle_t acc_handle;
5078 	struct mrsas_cmd		*cmd;
5079 	struct mrsas_sge64		*mfi_sgl;
5080 	struct mrsas_sge_ieee		*mfi_sgl_ieee;
5081 	struct scsa_cmd			*acmd = PKT2CMD(pkt);
5082 	struct mrsas_pthru_frame	*pthru;
5083 	struct mrsas_io_frame		*ldio;
5084 
5085 	/* find out if this is logical or physical drive command.  */
5086 	acmd->islogical = MRDRV_IS_LOGICAL(ap);
5087 	acmd->device_id = MAP_DEVICE_ID(instance, ap);
5088 	*cmd_done = 0;
5089 
5090 	/* get the command packet */
5091 	if (!(cmd = get_mfi_pkt(instance))) {
5092 		DTRACE_PROBE2(build_cmd_mfi_err, uint16_t,
5093 		    instance->fw_outstanding, uint16_t, instance->max_fw_cmds);
5094 		return (NULL);
5095 	}
5096 
5097 	acc_handle = cmd->frame_dma_obj.acc_handle;
5098 
5099 	/* Clear the frame buffer and assign back the context id */
5100 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
5101 	ddi_put32(acc_handle, &cmd->frame->hdr.context, cmd->index);
5102 
5103 	cmd->pkt = pkt;
5104 	cmd->cmd = acmd;
5105 	DTRACE_PROBE3(build_cmds, uint8_t, pkt->pkt_cdbp[0],
5106 	    ulong_t, acmd->cmd_dmacount, ulong_t, acmd->cmd_dma_len);
5107 
5108 	/* lets get the command directions */
5109 	if (acmd->cmd_flags & CFLAG_DMASEND) {
5110 		flags = MFI_FRAME_DIR_WRITE;
5111 
5112 		if (acmd->cmd_flags & CFLAG_CONSISTENT) {
5113 			(void) ddi_dma_sync(acmd->cmd_dmahandle,
5114 			    acmd->cmd_dma_offset, acmd->cmd_dma_len,
5115 			    DDI_DMA_SYNC_FORDEV);
5116 		}
5117 	} else if (acmd->cmd_flags & ~CFLAG_DMASEND) {
5118 		flags = MFI_FRAME_DIR_READ;
5119 
5120 		if (acmd->cmd_flags & CFLAG_CONSISTENT) {
5121 			(void) ddi_dma_sync(acmd->cmd_dmahandle,
5122 			    acmd->cmd_dma_offset, acmd->cmd_dma_len,
5123 			    DDI_DMA_SYNC_FORCPU);
5124 		}
5125 	} else {
5126 		flags = MFI_FRAME_DIR_NONE;
5127 	}
5128 
5129 	if (instance->flag_ieee) {
5130 		flags |= MFI_FRAME_IEEE;
5131 	}
5132 	flags |= MFI_FRAME_SGL64;
5133 
5134 	switch (pkt->pkt_cdbp[0]) {
5135 
5136 	/*
5137 	 * case SCMD_SYNCHRONIZE_CACHE:
5138 	 *	flush_cache(instance);
5139 	 *	return_mfi_pkt(instance, cmd);
5140 	 *	*cmd_done = 1;
5141 	 *
5142 	 *	return (NULL);
5143 	 */
5144 
5145 	case SCMD_READ:
5146 	case SCMD_WRITE:
5147 	case SCMD_READ_G1:
5148 	case SCMD_WRITE_G1:
5149 	case SCMD_READ_G4:
5150 	case SCMD_WRITE_G4:
5151 	case SCMD_READ_G5:
5152 	case SCMD_WRITE_G5:
5153 		if (acmd->islogical) {
5154 			ldio = (struct mrsas_io_frame *)cmd->frame;
5155 
5156 			/*
5157 			 * preare the Logical IO frame:
5158 			 * 2nd bit is zero for all read cmds
5159 			 */
5160 			ddi_put8(acc_handle, &ldio->cmd,
5161 			    (pkt->pkt_cdbp[0] & 0x02) ? MFI_CMD_OP_LD_WRITE
5162 			    : MFI_CMD_OP_LD_READ);
5163 			ddi_put8(acc_handle, &ldio->cmd_status, 0x0);
5164 			ddi_put8(acc_handle, &ldio->scsi_status, 0x0);
5165 			ddi_put8(acc_handle, &ldio->target_id, acmd->device_id);
5166 			ddi_put16(acc_handle, &ldio->timeout, 0);
5167 			ddi_put8(acc_handle, &ldio->reserved_0, 0);
5168 			ddi_put16(acc_handle, &ldio->pad_0, 0);
5169 			ddi_put16(acc_handle, &ldio->flags, flags);
5170 
5171 			/* Initialize sense Information */
5172 			bzero(cmd->sense, SENSE_LENGTH);
5173 			ddi_put8(acc_handle, &ldio->sense_len, SENSE_LENGTH);
5174 			ddi_put32(acc_handle, &ldio->sense_buf_phys_addr_hi, 0);
5175 			ddi_put32(acc_handle, &ldio->sense_buf_phys_addr_lo,
5176 			    cmd->sense_phys_addr);
5177 			ddi_put32(acc_handle, &ldio->start_lba_hi, 0);
5178 			ddi_put8(acc_handle, &ldio->access_byte,
5179 			    (acmd->cmd_cdblen != 6) ? pkt->pkt_cdbp[1] : 0);
5180 			ddi_put8(acc_handle, &ldio->sge_count,
5181 			    acmd->cmd_cookiecnt);
5182 			if (instance->flag_ieee) {
5183 				mfi_sgl_ieee =
5184 				    (struct mrsas_sge_ieee *)&ldio->sgl;
5185 			} else {
5186 				mfi_sgl = (struct mrsas_sge64	*)&ldio->sgl;
5187 			}
5188 
5189 			context = ddi_get32(acc_handle, &ldio->context);
5190 
5191 			if (acmd->cmd_cdblen == CDB_GROUP0) {
5192 				/* 6-byte cdb */
5193 				ddi_put32(acc_handle, &ldio->lba_count, (
5194 				    (uint16_t)(pkt->pkt_cdbp[4])));
5195 
5196 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
5197 				    ((uint32_t)(pkt->pkt_cdbp[3])) |
5198 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 8) |
5199 				    ((uint32_t)((pkt->pkt_cdbp[1]) & 0x1F)
5200 				    << 16)));
5201 			} else if (acmd->cmd_cdblen == CDB_GROUP1) {
5202 				/* 10-byte cdb */
5203 				ddi_put32(acc_handle, &ldio->lba_count, (
5204 				    ((uint16_t)(pkt->pkt_cdbp[8])) |
5205 				    ((uint16_t)(pkt->pkt_cdbp[7]) << 8)));
5206 
5207 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
5208 				    ((uint32_t)(pkt->pkt_cdbp[5])) |
5209 				    ((uint32_t)(pkt->pkt_cdbp[4]) << 8) |
5210 				    ((uint32_t)(pkt->pkt_cdbp[3]) << 16) |
5211 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 24)));
5212 			} else if (acmd->cmd_cdblen == CDB_GROUP5) {
5213 				/* 12-byte cdb */
5214 				ddi_put32(acc_handle, &ldio->lba_count, (
5215 				    ((uint32_t)(pkt->pkt_cdbp[9])) |
5216 				    ((uint32_t)(pkt->pkt_cdbp[8]) << 8) |
5217 				    ((uint32_t)(pkt->pkt_cdbp[7]) << 16) |
5218 				    ((uint32_t)(pkt->pkt_cdbp[6]) << 24)));
5219 
5220 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
5221 				    ((uint32_t)(pkt->pkt_cdbp[5])) |
5222 				    ((uint32_t)(pkt->pkt_cdbp[4]) << 8) |
5223 				    ((uint32_t)(pkt->pkt_cdbp[3]) << 16) |
5224 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 24)));
5225 			} else if (acmd->cmd_cdblen == CDB_GROUP4) {
5226 				/* 16-byte cdb */
5227 				ddi_put32(acc_handle, &ldio->lba_count, (
5228 				    ((uint32_t)(pkt->pkt_cdbp[13])) |
5229 				    ((uint32_t)(pkt->pkt_cdbp[12]) << 8) |
5230 				    ((uint32_t)(pkt->pkt_cdbp[11]) << 16) |
5231 				    ((uint32_t)(pkt->pkt_cdbp[10]) << 24)));
5232 
5233 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
5234 				    ((uint32_t)(pkt->pkt_cdbp[9])) |
5235 				    ((uint32_t)(pkt->pkt_cdbp[8]) << 8) |
5236 				    ((uint32_t)(pkt->pkt_cdbp[7]) << 16) |
5237 				    ((uint32_t)(pkt->pkt_cdbp[6]) << 24)));
5238 
5239 				ddi_put32(acc_handle, &ldio->start_lba_hi, (
5240 				    ((uint32_t)(pkt->pkt_cdbp[5])) |
5241 				    ((uint32_t)(pkt->pkt_cdbp[4]) << 8) |
5242 				    ((uint32_t)(pkt->pkt_cdbp[3]) << 16) |
5243 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 24)));
5244 			}
5245 
5246 			break;
5247 		}
5248 		/* fall through For all non-rd/wr cmds */
5249 	default:
5250 
5251 		switch (pkt->pkt_cdbp[0]) {
5252 		case SCMD_MODE_SENSE:
5253 		case SCMD_MODE_SENSE_G1: {
5254 			union scsi_cdb	*cdbp;
5255 			uint16_t	page_code;
5256 
5257 			cdbp = (void *)pkt->pkt_cdbp;
5258 			page_code = (uint16_t)cdbp->cdb_un.sg.scsi[0];
5259 			switch (page_code) {
5260 			case 0x3:
5261 			case 0x4:
5262 				(void) mrsas_mode_sense_build(pkt);
5263 				return_mfi_pkt(instance, cmd);
5264 				*cmd_done = 1;
5265 				return (NULL);
5266 			}
5267 			break;
5268 		}
5269 		default:
5270 			break;
5271 		}
5272 
5273 		pthru	= (struct mrsas_pthru_frame *)cmd->frame;
5274 
5275 		/* prepare the DCDB frame */
5276 		ddi_put8(acc_handle, &pthru->cmd, (acmd->islogical) ?
5277 		    MFI_CMD_OP_LD_SCSI : MFI_CMD_OP_PD_SCSI);
5278 		ddi_put8(acc_handle, &pthru->cmd_status, 0x0);
5279 		ddi_put8(acc_handle, &pthru->scsi_status, 0x0);
5280 		ddi_put8(acc_handle, &pthru->target_id, acmd->device_id);
5281 		ddi_put8(acc_handle, &pthru->lun, 0);
5282 		ddi_put8(acc_handle, &pthru->cdb_len, acmd->cmd_cdblen);
5283 		ddi_put16(acc_handle, &pthru->timeout, 0);
5284 		ddi_put16(acc_handle, &pthru->flags, flags);
5285 		tmp_data_xfer_len = 0;
5286 		for (i = 0; i < acmd->cmd_cookiecnt; i++) {
5287 			tmp_data_xfer_len += acmd->cmd_dmacookies[i].dmac_size;
5288 		}
5289 		ddi_put32(acc_handle, &pthru->data_xfer_len,
5290 		    tmp_data_xfer_len);
5291 		ddi_put8(acc_handle, &pthru->sge_count, acmd->cmd_cookiecnt);
5292 		if (instance->flag_ieee) {
5293 			mfi_sgl_ieee = (struct mrsas_sge_ieee *)&pthru->sgl;
5294 		} else {
5295 			mfi_sgl	= (struct mrsas_sge64 *)&pthru->sgl;
5296 		}
5297 
5298 		bzero(cmd->sense, SENSE_LENGTH);
5299 		ddi_put8(acc_handle, &pthru->sense_len, SENSE_LENGTH);
5300 		ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_hi, 0);
5301 		ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_lo,
5302 		    cmd->sense_phys_addr);
5303 
5304 		context = ddi_get32(acc_handle, &pthru->context);
5305 		ddi_rep_put8(acc_handle, (uint8_t *)pkt->pkt_cdbp,
5306 		    (uint8_t *)pthru->cdb, acmd->cmd_cdblen, DDI_DEV_AUTOINCR);
5307 
5308 		break;
5309 	}
5310 #ifdef lint
5311 	context = context;
5312 #endif
5313 	/* prepare the scatter-gather list for the firmware */
5314 	if (instance->flag_ieee) {
5315 		for (i = 0; i < acmd->cmd_cookiecnt; i++, mfi_sgl_ieee++) {
5316 			ddi_put64(acc_handle, &mfi_sgl_ieee->phys_addr,
5317 			    acmd->cmd_dmacookies[i].dmac_laddress);
5318 			ddi_put32(acc_handle, &mfi_sgl_ieee->length,
5319 			    acmd->cmd_dmacookies[i].dmac_size);
5320 		}
5321 		sge_bytes = sizeof (struct mrsas_sge_ieee)*acmd->cmd_cookiecnt;
5322 	} else {
5323 		for (i = 0; i < acmd->cmd_cookiecnt; i++, mfi_sgl++) {
5324 			ddi_put64(acc_handle, &mfi_sgl->phys_addr,
5325 			    acmd->cmd_dmacookies[i].dmac_laddress);
5326 			ddi_put32(acc_handle, &mfi_sgl->length,
5327 			    acmd->cmd_dmacookies[i].dmac_size);
5328 		}
5329 		sge_bytes = sizeof (struct mrsas_sge64)*acmd->cmd_cookiecnt;
5330 	}
5331 
5332 	cmd->frame_count = (sge_bytes / MRMFI_FRAME_SIZE) +
5333 	    ((sge_bytes % MRMFI_FRAME_SIZE) ? 1 : 0) + 1;
5334 
5335 	if (cmd->frame_count >= 8) {
5336 		cmd->frame_count = 8;
5337 	}
5338 
5339 	return (cmd);
5340 }
5341 
5342 /*
5343  * wait_for_outstanding -	Wait for all outstanding cmds
5344  * @instance:				Adapter soft state
5345  *
5346  * This function waits for upto MRDRV_RESET_WAIT_TIME seconds for FW to
5347  * complete all its outstanding commands. Returns error if one or more IOs
5348  * are pending after this time period.
5349  */
5350 static int
5351 wait_for_outstanding(struct mrsas_instance *instance)
5352 {
5353 	int		i;
5354 	uint32_t	wait_time = 90;
5355 
5356 	for (i = 0; i < wait_time; i++) {
5357 		if (!instance->fw_outstanding) {
5358 			break;
5359 		}
5360 
5361 		drv_usecwait(MILLISEC); /* wait for 1000 usecs */;
5362 	}
5363 
5364 	if (instance->fw_outstanding) {
5365 		return (1);
5366 	}
5367 
5368 	return (0);
5369 }
5370 
5371 /*
5372  * issue_mfi_pthru
5373  */
5374 static int
5375 issue_mfi_pthru(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
5376     struct mrsas_cmd *cmd, int mode)
5377 {
5378 	void		*ubuf;
5379 	uint32_t	kphys_addr = 0;
5380 	uint32_t	xferlen = 0;
5381 	uint32_t	new_xfer_length = 0;
5382 	uint_t		model;
5383 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
5384 	dma_obj_t			pthru_dma_obj;
5385 	struct mrsas_pthru_frame	*kpthru;
5386 	struct mrsas_pthru_frame	*pthru;
5387 	int i;
5388 	pthru = &cmd->frame->pthru;
5389 	kpthru = (struct mrsas_pthru_frame *)&ioctl->frame[0];
5390 
5391 	if (instance->adapterresetinprogress) {
5392 		con_log(CL_ANN1, (CE_WARN, "issue_mfi_pthru: Reset flag set, "
5393 		"returning mfi_pkt and setting TRAN_BUSY\n"));
5394 		return (DDI_FAILURE);
5395 	}
5396 	model = ddi_model_convert_from(mode & FMODELS);
5397 	if (model == DDI_MODEL_ILP32) {
5398 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_pthru: DDI_MODEL_LP32"));
5399 
5400 		xferlen	= kpthru->sgl.sge32[0].length;
5401 
5402 		ubuf	= (void *)(ulong_t)kpthru->sgl.sge32[0].phys_addr;
5403 	} else {
5404 #ifdef _ILP32
5405 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_pthru: DDI_MODEL_LP32"));
5406 		xferlen	= kpthru->sgl.sge32[0].length;
5407 		ubuf	= (void *)(ulong_t)kpthru->sgl.sge32[0].phys_addr;
5408 #else
5409 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_pthru: DDI_MODEL_LP64"));
5410 		xferlen	= kpthru->sgl.sge64[0].length;
5411 		ubuf	= (void *)(ulong_t)kpthru->sgl.sge64[0].phys_addr;
5412 #endif
5413 	}
5414 
5415 	if (xferlen) {
5416 		/* means IOCTL requires DMA */
5417 		/* allocate the data transfer buffer */
5418 		/* pthru_dma_obj.size = xferlen; */
5419 		MRSAS_GET_BOUNDARY_ALIGNED_LEN(xferlen, new_xfer_length,
5420 		    PAGESIZE);
5421 		pthru_dma_obj.size = new_xfer_length;
5422 		pthru_dma_obj.dma_attr = mrsas_generic_dma_attr;
5423 		pthru_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
5424 		pthru_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
5425 		pthru_dma_obj.dma_attr.dma_attr_sgllen = 1;
5426 		pthru_dma_obj.dma_attr.dma_attr_align = 1;
5427 
5428 		/* allocate kernel buffer for DMA */
5429 		if (mrsas_alloc_dma_obj(instance, &pthru_dma_obj,
5430 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
5431 			con_log(CL_ANN, (CE_WARN, "issue_mfi_pthru: "
5432 			    "could not allocate data transfer buffer."));
5433 			return (DDI_FAILURE);
5434 		}
5435 		(void) memset(pthru_dma_obj.buffer, 0, xferlen);
5436 
5437 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
5438 		if (kpthru->flags & MFI_FRAME_DIR_WRITE) {
5439 			for (i = 0; i < xferlen; i++) {
5440 				if (ddi_copyin((uint8_t *)ubuf+i,
5441 				    (uint8_t *)pthru_dma_obj.buffer+i,
5442 				    1, mode)) {
5443 					con_log(CL_ANN, (CE_WARN,
5444 					    "issue_mfi_pthru : "
5445 					    "copy from user space failed"));
5446 					return (DDI_FAILURE);
5447 				}
5448 			}
5449 		}
5450 
5451 		kphys_addr = pthru_dma_obj.dma_cookie[0].dmac_address;
5452 	}
5453 
5454 	ddi_put8(acc_handle, &pthru->cmd, kpthru->cmd);
5455 	ddi_put8(acc_handle, &pthru->sense_len, SENSE_LENGTH);
5456 	ddi_put8(acc_handle, &pthru->cmd_status, 0);
5457 	ddi_put8(acc_handle, &pthru->scsi_status, 0);
5458 	ddi_put8(acc_handle, &pthru->target_id, kpthru->target_id);
5459 	ddi_put8(acc_handle, &pthru->lun, kpthru->lun);
5460 	ddi_put8(acc_handle, &pthru->cdb_len, kpthru->cdb_len);
5461 	ddi_put8(acc_handle, &pthru->sge_count, kpthru->sge_count);
5462 	ddi_put16(acc_handle, &pthru->timeout, kpthru->timeout);
5463 	ddi_put32(acc_handle, &pthru->data_xfer_len, kpthru->data_xfer_len);
5464 
5465 	ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_hi, 0);
5466 	pthru->sense_buf_phys_addr_lo = cmd->sense_phys_addr;
5467 	/* ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_lo, 0); */
5468 
5469 	ddi_rep_put8(acc_handle, (uint8_t *)kpthru->cdb, (uint8_t *)pthru->cdb,
5470 	    pthru->cdb_len, DDI_DEV_AUTOINCR);
5471 
5472 	ddi_put16(acc_handle, &pthru->flags, kpthru->flags & ~MFI_FRAME_SGL64);
5473 	ddi_put32(acc_handle, &pthru->sgl.sge32[0].length, xferlen);
5474 	ddi_put32(acc_handle, &pthru->sgl.sge32[0].phys_addr, kphys_addr);
5475 
5476 	cmd->sync_cmd = MRSAS_TRUE;
5477 	cmd->frame_count = 1;
5478 
5479 	if (instance->tbolt) {
5480 		mr_sas_tbolt_build_mfi_cmd(instance, cmd);
5481 	}
5482 
5483 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
5484 		con_log(CL_ANN, (CE_WARN,
5485 		    "issue_mfi_pthru: fw_ioctl failed"));
5486 	} else {
5487 		if (xferlen && kpthru->flags & MFI_FRAME_DIR_READ) {
5488 			for (i = 0; i < xferlen; i++) {
5489 				if (ddi_copyout(
5490 				    (uint8_t *)pthru_dma_obj.buffer+i,
5491 				    (uint8_t *)ubuf+i, 1, mode)) {
5492 					con_log(CL_ANN, (CE_WARN,
5493 					    "issue_mfi_pthru : "
5494 					    "copy to user space failed"));
5495 					return (DDI_FAILURE);
5496 				}
5497 			}
5498 		}
5499 	}
5500 
5501 	kpthru->cmd_status = ddi_get8(acc_handle, &pthru->cmd_status);
5502 	kpthru->scsi_status = ddi_get8(acc_handle, &pthru->scsi_status);
5503 
5504 	con_log(CL_ANN, (CE_CONT, "issue_mfi_pthru: cmd_status %x, "
5505 	    "scsi_status %x", kpthru->cmd_status, kpthru->scsi_status));
5506 	DTRACE_PROBE3(issue_pthru, uint8_t, kpthru->cmd, uint8_t,
5507 	    kpthru->cmd_status, uint8_t, kpthru->scsi_status);
5508 
5509 	if (kpthru->sense_len) {
5510 		uint_t sense_len = SENSE_LENGTH;
5511 		void *sense_ubuf =
5512 		    (void *)(ulong_t)kpthru->sense_buf_phys_addr_lo;
5513 		if (kpthru->sense_len <= SENSE_LENGTH) {
5514 			sense_len = kpthru->sense_len;
5515 		}
5516 
5517 		for (i = 0; i < sense_len; i++) {
5518 			if (ddi_copyout(
5519 			    (uint8_t *)cmd->sense+i,
5520 			    (uint8_t *)sense_ubuf+i, 1, mode)) {
5521 				con_log(CL_ANN, (CE_WARN,
5522 				    "issue_mfi_pthru : "
5523 				    "copy to user space failed"));
5524 			}
5525 			con_log(CL_DLEVEL1, (CE_WARN,
5526 			    "Copying Sense info sense_buff[%d] = 0x%X",
5527 			    i, *((uint8_t *)cmd->sense + i)));
5528 		}
5529 	}
5530 	(void) ddi_dma_sync(cmd->frame_dma_obj.dma_handle, 0, 0,
5531 	    DDI_DMA_SYNC_FORDEV);
5532 
5533 	if (xferlen) {
5534 		/* free kernel buffer */
5535 		if (mrsas_free_dma_obj(instance, pthru_dma_obj) != DDI_SUCCESS)
5536 			return (DDI_FAILURE);
5537 	}
5538 
5539 	return (DDI_SUCCESS);
5540 }
5541 
5542 /*
5543  * issue_mfi_dcmd
5544  */
5545 static int
5546 issue_mfi_dcmd(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
5547     struct mrsas_cmd *cmd, int mode)
5548 {
5549 	void		*ubuf;
5550 	uint32_t	kphys_addr = 0;
5551 	uint32_t	xferlen = 0;
5552 	uint32_t	new_xfer_length = 0;
5553 	uint32_t	model;
5554 	dma_obj_t	dcmd_dma_obj;
5555 	struct mrsas_dcmd_frame	*kdcmd;
5556 	struct mrsas_dcmd_frame	*dcmd;
5557 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
5558 	int i;
5559 	dcmd = &cmd->frame->dcmd;
5560 	kdcmd = (struct mrsas_dcmd_frame *)&ioctl->frame[0];
5561 
5562 	if (instance->adapterresetinprogress) {
5563 		con_log(CL_ANN1, (CE_NOTE, "Reset flag set, "
5564 		"returning mfi_pkt and setting TRAN_BUSY"));
5565 		return (DDI_FAILURE);
5566 	}
5567 	model = ddi_model_convert_from(mode & FMODELS);
5568 	if (model == DDI_MODEL_ILP32) {
5569 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_dcmd: DDI_MODEL_ILP32"));
5570 
5571 		xferlen	= kdcmd->sgl.sge32[0].length;
5572 
5573 		ubuf	= (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
5574 	} else {
5575 #ifdef _ILP32
5576 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_dcmd: DDI_MODEL_ILP32"));
5577 		xferlen	= kdcmd->sgl.sge32[0].length;
5578 		ubuf	= (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
5579 #else
5580 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_dcmd: DDI_MODEL_LP64"));
5581 		xferlen	= kdcmd->sgl.sge64[0].length;
5582 		ubuf	= (void *)(ulong_t)kdcmd->sgl.sge64[0].phys_addr;
5583 #endif
5584 	}
5585 	if (xferlen) {
5586 		/* means IOCTL requires DMA */
5587 		/* allocate the data transfer buffer */
5588 		/* dcmd_dma_obj.size = xferlen; */
5589 		MRSAS_GET_BOUNDARY_ALIGNED_LEN(xferlen, new_xfer_length,
5590 		    PAGESIZE);
5591 		dcmd_dma_obj.size = new_xfer_length;
5592 		dcmd_dma_obj.dma_attr = mrsas_generic_dma_attr;
5593 		dcmd_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
5594 		dcmd_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
5595 		dcmd_dma_obj.dma_attr.dma_attr_sgllen = 1;
5596 		dcmd_dma_obj.dma_attr.dma_attr_align = 1;
5597 
5598 		/* allocate kernel buffer for DMA */
5599 			if (mrsas_alloc_dma_obj(instance, &dcmd_dma_obj,
5600 			    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
5601 				con_log(CL_ANN,
5602 				    (CE_WARN, "issue_mfi_dcmd: could not "
5603 				    "allocate data transfer buffer."));
5604 				return (DDI_FAILURE);
5605 			}
5606 		(void) memset(dcmd_dma_obj.buffer, 0, xferlen);
5607 
5608 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
5609 		if (kdcmd->flags & MFI_FRAME_DIR_WRITE) {
5610 			for (i = 0; i < xferlen; i++) {
5611 				if (ddi_copyin((uint8_t *)ubuf + i,
5612 				    (uint8_t *)dcmd_dma_obj.buffer + i,
5613 				    1, mode)) {
5614 					con_log(CL_ANN, (CE_WARN,
5615 					    "issue_mfi_dcmd : "
5616 					    "copy from user space failed"));
5617 					return (DDI_FAILURE);
5618 				}
5619 			}
5620 		}
5621 
5622 		kphys_addr = dcmd_dma_obj.dma_cookie[0].dmac_address;
5623 	}
5624 
5625 	ddi_put8(acc_handle, &dcmd->cmd, kdcmd->cmd);
5626 	ddi_put8(acc_handle, &dcmd->cmd_status, 0);
5627 	ddi_put8(acc_handle, &dcmd->sge_count, kdcmd->sge_count);
5628 	ddi_put16(acc_handle, &dcmd->timeout, kdcmd->timeout);
5629 	ddi_put32(acc_handle, &dcmd->data_xfer_len, kdcmd->data_xfer_len);
5630 	ddi_put32(acc_handle, &dcmd->opcode, kdcmd->opcode);
5631 
5632 	ddi_rep_put8(acc_handle, (uint8_t *)kdcmd->mbox.b,
5633 	    (uint8_t *)dcmd->mbox.b, DCMD_MBOX_SZ, DDI_DEV_AUTOINCR);
5634 
5635 	ddi_put16(acc_handle, &dcmd->flags, kdcmd->flags & ~MFI_FRAME_SGL64);
5636 	ddi_put32(acc_handle, &dcmd->sgl.sge32[0].length, xferlen);
5637 	ddi_put32(acc_handle, &dcmd->sgl.sge32[0].phys_addr, kphys_addr);
5638 
5639 	cmd->sync_cmd = MRSAS_TRUE;
5640 	cmd->frame_count = 1;
5641 
5642 	if (instance->tbolt) {
5643 		mr_sas_tbolt_build_mfi_cmd(instance, cmd);
5644 	}
5645 
5646 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
5647 		con_log(CL_ANN, (CE_WARN, "issue_mfi_dcmd: fw_ioctl failed"));
5648 	} else {
5649 		if (xferlen && (kdcmd->flags & MFI_FRAME_DIR_READ)) {
5650 			for (i = 0; i < xferlen; i++) {
5651 				if (ddi_copyout(
5652 				    (uint8_t *)dcmd_dma_obj.buffer + i,
5653 				    (uint8_t *)ubuf + i,
5654 				    1, mode)) {
5655 					con_log(CL_ANN, (CE_WARN,
5656 					    "issue_mfi_dcmd : "
5657 					    "copy to user space failed"));
5658 					return (DDI_FAILURE);
5659 				}
5660 			}
5661 		}
5662 	}
5663 
5664 	kdcmd->cmd_status = ddi_get8(acc_handle, &dcmd->cmd_status);
5665 	con_log(CL_ANN,
5666 	    (CE_CONT, "issue_mfi_dcmd: cmd_status %x", kdcmd->cmd_status));
5667 	DTRACE_PROBE3(issue_dcmd, uint32_t, kdcmd->opcode, uint8_t,
5668 	    kdcmd->cmd, uint8_t, kdcmd->cmd_status);
5669 
5670 	if (xferlen) {
5671 		/* free kernel buffer */
5672 		if (mrsas_free_dma_obj(instance, dcmd_dma_obj) != DDI_SUCCESS)
5673 			return (DDI_FAILURE);
5674 	}
5675 
5676 	return (DDI_SUCCESS);
5677 }
5678 
5679 /*
5680  * issue_mfi_smp
5681  */
5682 static int
5683 issue_mfi_smp(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
5684     struct mrsas_cmd *cmd, int mode)
5685 {
5686 	void		*request_ubuf;
5687 	void		*response_ubuf;
5688 	uint32_t	request_xferlen = 0;
5689 	uint32_t	response_xferlen = 0;
5690 	uint32_t	new_xfer_length1 = 0;
5691 	uint32_t	new_xfer_length2 = 0;
5692 	uint_t		model;
5693 	dma_obj_t			request_dma_obj;
5694 	dma_obj_t			response_dma_obj;
5695 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
5696 	struct mrsas_smp_frame		*ksmp;
5697 	struct mrsas_smp_frame		*smp;
5698 	struct mrsas_sge32		*sge32;
5699 #ifndef _ILP32
5700 	struct mrsas_sge64		*sge64;
5701 #endif
5702 	int i;
5703 	uint64_t			tmp_sas_addr;
5704 
5705 	smp = &cmd->frame->smp;
5706 	ksmp = (struct mrsas_smp_frame *)&ioctl->frame[0];
5707 
5708 	if (instance->adapterresetinprogress) {
5709 		con_log(CL_ANN1, (CE_WARN, "Reset flag set, "
5710 		"returning mfi_pkt and setting TRAN_BUSY\n"));
5711 		return (DDI_FAILURE);
5712 	}
5713 	model = ddi_model_convert_from(mode & FMODELS);
5714 	if (model == DDI_MODEL_ILP32) {
5715 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_smp: DDI_MODEL_ILP32"));
5716 
5717 		sge32			= &ksmp->sgl[0].sge32[0];
5718 		response_xferlen	= sge32[0].length;
5719 		request_xferlen		= sge32[1].length;
5720 		con_log(CL_ANN, (CE_CONT, "issue_mfi_smp: "
5721 		    "response_xferlen = %x, request_xferlen = %x",
5722 		    response_xferlen, request_xferlen));
5723 
5724 		response_ubuf	= (void *)(ulong_t)sge32[0].phys_addr;
5725 		request_ubuf	= (void *)(ulong_t)sge32[1].phys_addr;
5726 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_smp: "
5727 		    "response_ubuf = %p, request_ubuf = %p",
5728 		    response_ubuf, request_ubuf));
5729 	} else {
5730 #ifdef _ILP32
5731 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_smp: DDI_MODEL_ILP32"));
5732 
5733 		sge32			= &ksmp->sgl[0].sge32[0];
5734 		response_xferlen	= sge32[0].length;
5735 		request_xferlen		= sge32[1].length;
5736 		con_log(CL_ANN, (CE_CONT, "issue_mfi_smp: "
5737 		    "response_xferlen = %x, request_xferlen = %x",
5738 		    response_xferlen, request_xferlen));
5739 
5740 		response_ubuf	= (void *)(ulong_t)sge32[0].phys_addr;
5741 		request_ubuf	= (void *)(ulong_t)sge32[1].phys_addr;
5742 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_smp: "
5743 		    "response_ubuf = %p, request_ubuf = %p",
5744 		    response_ubuf, request_ubuf));
5745 #else
5746 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_smp: DDI_MODEL_LP64"));
5747 
5748 		sge64			= &ksmp->sgl[0].sge64[0];
5749 		response_xferlen	= sge64[0].length;
5750 		request_xferlen		= sge64[1].length;
5751 
5752 		response_ubuf	= (void *)(ulong_t)sge64[0].phys_addr;
5753 		request_ubuf	= (void *)(ulong_t)sge64[1].phys_addr;
5754 #endif
5755 	}
5756 	if (request_xferlen) {
5757 		/* means IOCTL requires DMA */
5758 		/* allocate the data transfer buffer */
5759 		/* request_dma_obj.size = request_xferlen; */
5760 		MRSAS_GET_BOUNDARY_ALIGNED_LEN(request_xferlen,
5761 		    new_xfer_length1, PAGESIZE);
5762 		request_dma_obj.size = new_xfer_length1;
5763 		request_dma_obj.dma_attr = mrsas_generic_dma_attr;
5764 		request_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
5765 		request_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
5766 		request_dma_obj.dma_attr.dma_attr_sgllen = 1;
5767 		request_dma_obj.dma_attr.dma_attr_align = 1;
5768 
5769 		/* allocate kernel buffer for DMA */
5770 		if (mrsas_alloc_dma_obj(instance, &request_dma_obj,
5771 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
5772 			con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
5773 			    "could not allocate data transfer buffer."));
5774 			return (DDI_FAILURE);
5775 		}
5776 		(void) memset(request_dma_obj.buffer, 0, request_xferlen);
5777 
5778 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
5779 		for (i = 0; i < request_xferlen; i++) {
5780 			if (ddi_copyin((uint8_t *)request_ubuf + i,
5781 			    (uint8_t *)request_dma_obj.buffer + i,
5782 			    1, mode)) {
5783 				con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
5784 				    "copy from user space failed"));
5785 				return (DDI_FAILURE);
5786 			}
5787 		}
5788 	}
5789 
5790 	if (response_xferlen) {
5791 		/* means IOCTL requires DMA */
5792 		/* allocate the data transfer buffer */
5793 		/* response_dma_obj.size = response_xferlen; */
5794 		MRSAS_GET_BOUNDARY_ALIGNED_LEN(response_xferlen,
5795 		    new_xfer_length2, PAGESIZE);
5796 		response_dma_obj.size = new_xfer_length2;
5797 		response_dma_obj.dma_attr = mrsas_generic_dma_attr;
5798 		response_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
5799 		response_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
5800 		response_dma_obj.dma_attr.dma_attr_sgllen = 1;
5801 		response_dma_obj.dma_attr.dma_attr_align = 1;
5802 
5803 		/* allocate kernel buffer for DMA */
5804 		if (mrsas_alloc_dma_obj(instance, &response_dma_obj,
5805 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
5806 			con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
5807 			    "could not allocate data transfer buffer."));
5808 			return (DDI_FAILURE);
5809 		}
5810 		(void) memset(response_dma_obj.buffer, 0, response_xferlen);
5811 
5812 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
5813 		for (i = 0; i < response_xferlen; i++) {
5814 			if (ddi_copyin((uint8_t *)response_ubuf + i,
5815 			    (uint8_t *)response_dma_obj.buffer + i,
5816 			    1, mode)) {
5817 				con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
5818 				    "copy from user space failed"));
5819 				return (DDI_FAILURE);
5820 			}
5821 		}
5822 	}
5823 
5824 	ddi_put8(acc_handle, &smp->cmd, ksmp->cmd);
5825 	ddi_put8(acc_handle, &smp->cmd_status, 0);
5826 	ddi_put8(acc_handle, &smp->connection_status, 0);
5827 	ddi_put8(acc_handle, &smp->sge_count, ksmp->sge_count);
5828 	/* smp->context		= ksmp->context; */
5829 	ddi_put16(acc_handle, &smp->timeout, ksmp->timeout);
5830 	ddi_put32(acc_handle, &smp->data_xfer_len, ksmp->data_xfer_len);
5831 
5832 	bcopy((void *)&ksmp->sas_addr, (void *)&tmp_sas_addr,
5833 	    sizeof (uint64_t));
5834 	ddi_put64(acc_handle, &smp->sas_addr, tmp_sas_addr);
5835 
5836 	ddi_put16(acc_handle, &smp->flags, ksmp->flags & ~MFI_FRAME_SGL64);
5837 
5838 	model = ddi_model_convert_from(mode & FMODELS);
5839 	if (model == DDI_MODEL_ILP32) {
5840 		con_log(CL_ANN1, (CE_CONT,
5841 		    "issue_mfi_smp: DDI_MODEL_ILP32"));
5842 
5843 		sge32 = &smp->sgl[0].sge32[0];
5844 		ddi_put32(acc_handle, &sge32[0].length, response_xferlen);
5845 		ddi_put32(acc_handle, &sge32[0].phys_addr,
5846 		    response_dma_obj.dma_cookie[0].dmac_address);
5847 		ddi_put32(acc_handle, &sge32[1].length, request_xferlen);
5848 		ddi_put32(acc_handle, &sge32[1].phys_addr,
5849 		    request_dma_obj.dma_cookie[0].dmac_address);
5850 	} else {
5851 #ifdef _ILP32
5852 		con_log(CL_ANN1, (CE_CONT,
5853 		    "issue_mfi_smp: DDI_MODEL_ILP32"));
5854 		sge32 = &smp->sgl[0].sge32[0];
5855 		ddi_put32(acc_handle, &sge32[0].length, response_xferlen);
5856 		ddi_put32(acc_handle, &sge32[0].phys_addr,
5857 		    response_dma_obj.dma_cookie[0].dmac_address);
5858 		ddi_put32(acc_handle, &sge32[1].length, request_xferlen);
5859 		ddi_put32(acc_handle, &sge32[1].phys_addr,
5860 		    request_dma_obj.dma_cookie[0].dmac_address);
5861 #else
5862 		con_log(CL_ANN1, (CE_CONT,
5863 		    "issue_mfi_smp: DDI_MODEL_LP64"));
5864 		sge64 = &smp->sgl[0].sge64[0];
5865 		ddi_put32(acc_handle, &sge64[0].length, response_xferlen);
5866 		ddi_put64(acc_handle, &sge64[0].phys_addr,
5867 		    response_dma_obj.dma_cookie[0].dmac_address);
5868 		ddi_put32(acc_handle, &sge64[1].length, request_xferlen);
5869 		ddi_put64(acc_handle, &sge64[1].phys_addr,
5870 		    request_dma_obj.dma_cookie[0].dmac_address);
5871 #endif
5872 	}
5873 	con_log(CL_ANN1, (CE_CONT, "issue_mfi_smp : "
5874 	    "smp->response_xferlen = %d, smp->request_xferlen = %d "
5875 	    "smp->data_xfer_len = %d", ddi_get32(acc_handle, &sge32[0].length),
5876 	    ddi_get32(acc_handle, &sge32[1].length),
5877 	    ddi_get32(acc_handle, &smp->data_xfer_len)));
5878 
5879 	cmd->sync_cmd = MRSAS_TRUE;
5880 	cmd->frame_count = 1;
5881 
5882 	if (instance->tbolt) {
5883 		mr_sas_tbolt_build_mfi_cmd(instance, cmd);
5884 	}
5885 
5886 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
5887 		con_log(CL_ANN, (CE_WARN,
5888 		    "issue_mfi_smp: fw_ioctl failed"));
5889 	} else {
5890 		con_log(CL_ANN1, (CE_CONT,
5891 		    "issue_mfi_smp: copy to user space"));
5892 
5893 		if (request_xferlen) {
5894 			for (i = 0; i < request_xferlen; i++) {
5895 				if (ddi_copyout(
5896 				    (uint8_t *)request_dma_obj.buffer +
5897 				    i, (uint8_t *)request_ubuf + i,
5898 				    1, mode)) {
5899 					con_log(CL_ANN, (CE_WARN,
5900 					    "issue_mfi_smp : copy to user space"
5901 					    " failed"));
5902 					return (DDI_FAILURE);
5903 				}
5904 			}
5905 		}
5906 
5907 		if (response_xferlen) {
5908 			for (i = 0; i < response_xferlen; i++) {
5909 				if (ddi_copyout(
5910 				    (uint8_t *)response_dma_obj.buffer
5911 				    + i, (uint8_t *)response_ubuf
5912 				    + i, 1, mode)) {
5913 					con_log(CL_ANN, (CE_WARN,
5914 					    "issue_mfi_smp : copy to "
5915 					    "user space failed"));
5916 					return (DDI_FAILURE);
5917 				}
5918 			}
5919 		}
5920 	}
5921 
5922 	ksmp->cmd_status = ddi_get8(acc_handle, &smp->cmd_status);
5923 	con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: smp->cmd_status = %d",
5924 	    ksmp->cmd_status));
5925 	DTRACE_PROBE2(issue_smp, uint8_t, ksmp->cmd, uint8_t, ksmp->cmd_status);
5926 
5927 	if (request_xferlen) {
5928 		/* free kernel buffer */
5929 		if (mrsas_free_dma_obj(instance, request_dma_obj) !=
5930 		    DDI_SUCCESS)
5931 			return (DDI_FAILURE);
5932 	}
5933 
5934 	if (response_xferlen) {
5935 		/* free kernel buffer */
5936 		if (mrsas_free_dma_obj(instance, response_dma_obj) !=
5937 		    DDI_SUCCESS)
5938 			return (DDI_FAILURE);
5939 	}
5940 
5941 	return (DDI_SUCCESS);
5942 }
5943 
5944 /*
5945  * issue_mfi_stp
5946  */
5947 static int
5948 issue_mfi_stp(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
5949     struct mrsas_cmd *cmd, int mode)
5950 {
5951 	void		*fis_ubuf;
5952 	void		*data_ubuf;
5953 	uint32_t	fis_xferlen = 0;
5954 	uint32_t   new_xfer_length1 = 0;
5955 	uint32_t   new_xfer_length2 = 0;
5956 	uint32_t	data_xferlen = 0;
5957 	uint_t		model;
5958 	dma_obj_t	fis_dma_obj;
5959 	dma_obj_t	data_dma_obj;
5960 	struct mrsas_stp_frame	*kstp;
5961 	struct mrsas_stp_frame	*stp;
5962 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
5963 	int i;
5964 
5965 	stp = &cmd->frame->stp;
5966 	kstp = (struct mrsas_stp_frame *)&ioctl->frame[0];
5967 
5968 	if (instance->adapterresetinprogress) {
5969 		con_log(CL_ANN1, (CE_WARN, "Reset flag set, "
5970 		"returning mfi_pkt and setting TRAN_BUSY\n"));
5971 		return (DDI_FAILURE);
5972 	}
5973 	model = ddi_model_convert_from(mode & FMODELS);
5974 	if (model == DDI_MODEL_ILP32) {
5975 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_stp: DDI_MODEL_ILP32"));
5976 
5977 		fis_xferlen	= kstp->sgl.sge32[0].length;
5978 		data_xferlen	= kstp->sgl.sge32[1].length;
5979 
5980 		fis_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[0].phys_addr;
5981 		data_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[1].phys_addr;
5982 	} else {
5983 #ifdef _ILP32
5984 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_stp: DDI_MODEL_ILP32"));
5985 
5986 		fis_xferlen	= kstp->sgl.sge32[0].length;
5987 		data_xferlen	= kstp->sgl.sge32[1].length;
5988 
5989 		fis_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[0].phys_addr;
5990 		data_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[1].phys_addr;
5991 #else
5992 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_stp: DDI_MODEL_LP64"));
5993 
5994 		fis_xferlen	= kstp->sgl.sge64[0].length;
5995 		data_xferlen	= kstp->sgl.sge64[1].length;
5996 
5997 		fis_ubuf	= (void *)(ulong_t)kstp->sgl.sge64[0].phys_addr;
5998 		data_ubuf	= (void *)(ulong_t)kstp->sgl.sge64[1].phys_addr;
5999 #endif
6000 	}
6001 
6002 
6003 	if (fis_xferlen) {
6004 		con_log(CL_ANN, (CE_CONT, "issue_mfi_stp: "
6005 		    "fis_ubuf = %p fis_xferlen = %x", fis_ubuf, fis_xferlen));
6006 
6007 		/* means IOCTL requires DMA */
6008 		/* allocate the data transfer buffer */
6009 		/* fis_dma_obj.size = fis_xferlen; */
6010 		MRSAS_GET_BOUNDARY_ALIGNED_LEN(fis_xferlen,
6011 		    new_xfer_length1, PAGESIZE);
6012 		fis_dma_obj.size = new_xfer_length1;
6013 		fis_dma_obj.dma_attr = mrsas_generic_dma_attr;
6014 		fis_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
6015 		fis_dma_obj.dma_attr.dma_attr_count_max	= 0xFFFFFFFFU;
6016 		fis_dma_obj.dma_attr.dma_attr_sgllen = 1;
6017 		fis_dma_obj.dma_attr.dma_attr_align = 1;
6018 
6019 		/* allocate kernel buffer for DMA */
6020 		if (mrsas_alloc_dma_obj(instance, &fis_dma_obj,
6021 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
6022 			con_log(CL_ANN, (CE_WARN, "issue_mfi_stp : "
6023 			    "could not allocate data transfer buffer."));
6024 			return (DDI_FAILURE);
6025 		}
6026 		(void) memset(fis_dma_obj.buffer, 0, fis_xferlen);
6027 
6028 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
6029 		for (i = 0; i < fis_xferlen; i++) {
6030 			if (ddi_copyin((uint8_t *)fis_ubuf + i,
6031 			    (uint8_t *)fis_dma_obj.buffer + i, 1, mode)) {
6032 				con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: "
6033 				    "copy from user space failed"));
6034 				return (DDI_FAILURE);
6035 			}
6036 		}
6037 	}
6038 
6039 	if (data_xferlen) {
6040 		con_log(CL_ANN, (CE_CONT, "issue_mfi_stp: data_ubuf = %p "
6041 		    "data_xferlen = %x", data_ubuf, data_xferlen));
6042 
6043 		/* means IOCTL requires DMA */
6044 		/* allocate the data transfer buffer */
6045 		/* data_dma_obj.size = data_xferlen; */
6046 		MRSAS_GET_BOUNDARY_ALIGNED_LEN(data_xferlen, new_xfer_length2,
6047 		    PAGESIZE);
6048 		data_dma_obj.size = new_xfer_length2;
6049 		data_dma_obj.dma_attr = mrsas_generic_dma_attr;
6050 		data_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
6051 		data_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
6052 		data_dma_obj.dma_attr.dma_attr_sgllen = 1;
6053 		data_dma_obj.dma_attr.dma_attr_align = 1;
6054 
6055 		/* allocate kernel buffer for DMA */
6056 		if (mrsas_alloc_dma_obj(instance, &data_dma_obj,
6057 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
6058 			con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: "
6059 			    "could not allocate data transfer buffer."));
6060 			return (DDI_FAILURE);
6061 		}
6062 		(void) memset(data_dma_obj.buffer, 0, data_xferlen);
6063 
6064 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
6065 		for (i = 0; i < data_xferlen; i++) {
6066 			if (ddi_copyin((uint8_t *)data_ubuf + i,
6067 			    (uint8_t *)data_dma_obj.buffer + i, 1, mode)) {
6068 				con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: "
6069 				    "copy from user space failed"));
6070 				return (DDI_FAILURE);
6071 			}
6072 		}
6073 	}
6074 
6075 	ddi_put8(acc_handle, &stp->cmd, kstp->cmd);
6076 	ddi_put8(acc_handle, &stp->cmd_status, 0);
6077 	ddi_put8(acc_handle, &stp->connection_status, 0);
6078 	ddi_put8(acc_handle, &stp->target_id, kstp->target_id);
6079 	ddi_put8(acc_handle, &stp->sge_count, kstp->sge_count);
6080 
6081 	ddi_put16(acc_handle, &stp->timeout, kstp->timeout);
6082 	ddi_put32(acc_handle, &stp->data_xfer_len, kstp->data_xfer_len);
6083 
6084 	ddi_rep_put8(acc_handle, (uint8_t *)kstp->fis, (uint8_t *)stp->fis, 10,
6085 	    DDI_DEV_AUTOINCR);
6086 
6087 	ddi_put16(acc_handle, &stp->flags, kstp->flags & ~MFI_FRAME_SGL64);
6088 	ddi_put32(acc_handle, &stp->stp_flags, kstp->stp_flags);
6089 	ddi_put32(acc_handle, &stp->sgl.sge32[0].length, fis_xferlen);
6090 	ddi_put32(acc_handle, &stp->sgl.sge32[0].phys_addr,
6091 	    fis_dma_obj.dma_cookie[0].dmac_address);
6092 	ddi_put32(acc_handle, &stp->sgl.sge32[1].length, data_xferlen);
6093 	ddi_put32(acc_handle, &stp->sgl.sge32[1].phys_addr,
6094 	    data_dma_obj.dma_cookie[0].dmac_address);
6095 
6096 	cmd->sync_cmd = MRSAS_TRUE;
6097 	cmd->frame_count = 1;
6098 
6099 	if (instance->tbolt) {
6100 		mr_sas_tbolt_build_mfi_cmd(instance, cmd);
6101 	}
6102 
6103 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
6104 		con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: fw_ioctl failed"));
6105 	} else {
6106 
6107 		if (fis_xferlen) {
6108 			for (i = 0; i < fis_xferlen; i++) {
6109 				if (ddi_copyout(
6110 				    (uint8_t *)fis_dma_obj.buffer + i,
6111 				    (uint8_t *)fis_ubuf + i, 1, mode)) {
6112 					con_log(CL_ANN, (CE_WARN,
6113 					    "issue_mfi_stp : copy to "
6114 					    "user space failed"));
6115 					return (DDI_FAILURE);
6116 				}
6117 			}
6118 		}
6119 	}
6120 	if (data_xferlen) {
6121 		for (i = 0; i < data_xferlen; i++) {
6122 			if (ddi_copyout(
6123 			    (uint8_t *)data_dma_obj.buffer + i,
6124 			    (uint8_t *)data_ubuf + i, 1, mode)) {
6125 				con_log(CL_ANN, (CE_WARN,
6126 				    "issue_mfi_stp : copy to"
6127 				    " user space failed"));
6128 				return (DDI_FAILURE);
6129 			}
6130 		}
6131 	}
6132 
6133 	kstp->cmd_status = ddi_get8(acc_handle, &stp->cmd_status);
6134 	con_log(CL_ANN1, (CE_NOTE, "issue_mfi_stp: stp->cmd_status = %d",
6135 	    kstp->cmd_status));
6136 	DTRACE_PROBE2(issue_stp, uint8_t, kstp->cmd, uint8_t, kstp->cmd_status);
6137 
6138 	if (fis_xferlen) {
6139 		/* free kernel buffer */
6140 		if (mrsas_free_dma_obj(instance, fis_dma_obj) != DDI_SUCCESS)
6141 			return (DDI_FAILURE);
6142 	}
6143 
6144 	if (data_xferlen) {
6145 		/* free kernel buffer */
6146 		if (mrsas_free_dma_obj(instance, data_dma_obj) != DDI_SUCCESS)
6147 			return (DDI_FAILURE);
6148 	}
6149 
6150 	return (DDI_SUCCESS);
6151 }
6152 
6153 /*
6154  * fill_up_drv_ver
6155  */
6156 void
6157 fill_up_drv_ver(struct mrsas_drv_ver *dv)
6158 {
6159 	(void) memset(dv, 0, sizeof (struct mrsas_drv_ver));
6160 
6161 	(void) memcpy(dv->signature, "$LSI LOGIC$", strlen("$LSI LOGIC$"));
6162 	(void) memcpy(dv->os_name, "Solaris", strlen("Solaris"));
6163 	(void) memcpy(dv->drv_name, "mr_sas", strlen("mr_sas"));
6164 	(void) memcpy(dv->drv_ver, MRSAS_VERSION, strlen(MRSAS_VERSION));
6165 	(void) memcpy(dv->drv_rel_date, MRSAS_RELDATE,
6166 	    strlen(MRSAS_RELDATE));
6167 
6168 }
6169 
6170 /*
6171  * handle_drv_ioctl
6172  */
6173 static int
6174 handle_drv_ioctl(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
6175     int mode)
6176 {
6177 	int	i;
6178 	int	rval = DDI_SUCCESS;
6179 	int	*props = NULL;
6180 	void	*ubuf;
6181 
6182 	uint8_t		*pci_conf_buf;
6183 	uint32_t	xferlen;
6184 	uint32_t	num_props;
6185 	uint_t		model;
6186 	struct mrsas_dcmd_frame	*kdcmd;
6187 	struct mrsas_drv_ver	dv;
6188 	struct mrsas_pci_information pi;
6189 
6190 	kdcmd = (struct mrsas_dcmd_frame *)&ioctl->frame[0];
6191 
6192 	model = ddi_model_convert_from(mode & FMODELS);
6193 	if (model == DDI_MODEL_ILP32) {
6194 		con_log(CL_ANN1, (CE_CONT,
6195 		    "handle_drv_ioctl: DDI_MODEL_ILP32"));
6196 
6197 		xferlen	= kdcmd->sgl.sge32[0].length;
6198 
6199 		ubuf = (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
6200 	} else {
6201 #ifdef _ILP32
6202 		con_log(CL_ANN1, (CE_CONT,
6203 		    "handle_drv_ioctl: DDI_MODEL_ILP32"));
6204 		xferlen	= kdcmd->sgl.sge32[0].length;
6205 		ubuf = (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
6206 #else
6207 		con_log(CL_ANN1, (CE_CONT,
6208 		    "handle_drv_ioctl: DDI_MODEL_LP64"));
6209 		xferlen	= kdcmd->sgl.sge64[0].length;
6210 		ubuf = (void *)(ulong_t)kdcmd->sgl.sge64[0].phys_addr;
6211 #endif
6212 	}
6213 	con_log(CL_ANN1, (CE_CONT, "handle_drv_ioctl: "
6214 	    "dataBuf=%p size=%d bytes", ubuf, xferlen));
6215 
6216 	switch (kdcmd->opcode) {
6217 	case MRSAS_DRIVER_IOCTL_DRIVER_VERSION:
6218 		con_log(CL_ANN1, (CE_CONT, "handle_drv_ioctl: "
6219 		    "MRSAS_DRIVER_IOCTL_DRIVER_VERSION"));
6220 
6221 		fill_up_drv_ver(&dv);
6222 
6223 		if (ddi_copyout(&dv, ubuf, xferlen, mode)) {
6224 			con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
6225 			    "MRSAS_DRIVER_IOCTL_DRIVER_VERSION : "
6226 			    "copy to user space failed"));
6227 			kdcmd->cmd_status = 1;
6228 			rval = 1;
6229 		} else {
6230 			kdcmd->cmd_status = 0;
6231 		}
6232 		break;
6233 	case MRSAS_DRIVER_IOCTL_PCI_INFORMATION:
6234 		con_log(CL_ANN1, (CE_NOTE, "handle_drv_ioctl: "
6235 		    "MRSAS_DRIVER_IOCTL_PCI_INFORMAITON"));
6236 
6237 		if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, instance->dip,
6238 		    0, "reg", &props, &num_props)) {
6239 			con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
6240 			    "MRSAS_DRIVER_IOCTL_PCI_INFORMATION : "
6241 			    "ddi_prop_look_int_array failed"));
6242 			rval = DDI_FAILURE;
6243 		} else {
6244 
6245 			pi.busNumber = (props[0] >> 16) & 0xFF;
6246 			pi.deviceNumber = (props[0] >> 11) & 0x1f;
6247 			pi.functionNumber = (props[0] >> 8) & 0x7;
6248 			ddi_prop_free((void *)props);
6249 		}
6250 
6251 		pci_conf_buf = (uint8_t *)&pi.pciHeaderInfo;
6252 
6253 		for (i = 0; i < (sizeof (struct mrsas_pci_information) -
6254 		    offsetof(struct mrsas_pci_information, pciHeaderInfo));
6255 		    i++) {
6256 			pci_conf_buf[i] =
6257 			    pci_config_get8(instance->pci_handle, i);
6258 		}
6259 
6260 		if (ddi_copyout(&pi, ubuf, xferlen, mode)) {
6261 			con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
6262 			    "MRSAS_DRIVER_IOCTL_PCI_INFORMATION : "
6263 			    "copy to user space failed"));
6264 			kdcmd->cmd_status = 1;
6265 			rval = 1;
6266 		} else {
6267 			kdcmd->cmd_status = 0;
6268 		}
6269 		break;
6270 	default:
6271 		con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
6272 		    "invalid driver specific IOCTL opcode = 0x%x",
6273 		    kdcmd->opcode));
6274 		kdcmd->cmd_status = 1;
6275 		rval = DDI_FAILURE;
6276 		break;
6277 	}
6278 
6279 	return (rval);
6280 }
6281 
6282 /*
6283  * handle_mfi_ioctl
6284  */
6285 static int
6286 handle_mfi_ioctl(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
6287     int mode)
6288 {
6289 	int	rval = DDI_SUCCESS;
6290 
6291 	struct mrsas_header	*hdr;
6292 	struct mrsas_cmd	*cmd;
6293 
6294 	if (instance->tbolt) {
6295 		cmd = get_raid_msg_mfi_pkt(instance);
6296 	} else {
6297 		cmd = get_mfi_pkt(instance);
6298 	}
6299 	if (!cmd) {
6300 		con_log(CL_ANN, (CE_WARN, "mr_sas: "
6301 		    "failed to get a cmd packet"));
6302 		DTRACE_PROBE2(mfi_ioctl_err, uint16_t,
6303 		    instance->fw_outstanding, uint16_t, instance->max_fw_cmds);
6304 		return (DDI_FAILURE);
6305 	}
6306 
6307 	/* Clear the frame buffer and assign back the context id */
6308 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
6309 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
6310 	    cmd->index);
6311 
6312 	hdr = (struct mrsas_header *)&ioctl->frame[0];
6313 
6314 	switch (ddi_get8(cmd->frame_dma_obj.acc_handle, &hdr->cmd)) {
6315 	case MFI_CMD_OP_DCMD:
6316 		rval = issue_mfi_dcmd(instance, ioctl, cmd, mode);
6317 		break;
6318 	case MFI_CMD_OP_SMP:
6319 		rval = issue_mfi_smp(instance, ioctl, cmd, mode);
6320 		break;
6321 	case MFI_CMD_OP_STP:
6322 		rval = issue_mfi_stp(instance, ioctl, cmd, mode);
6323 		break;
6324 	case MFI_CMD_OP_LD_SCSI:
6325 	case MFI_CMD_OP_PD_SCSI:
6326 		rval = issue_mfi_pthru(instance, ioctl, cmd, mode);
6327 		break;
6328 	default:
6329 		con_log(CL_ANN, (CE_WARN, "handle_mfi_ioctl: "
6330 		    "invalid mfi ioctl hdr->cmd = %d", hdr->cmd));
6331 		rval = DDI_FAILURE;
6332 		break;
6333 	}
6334 
6335 	if (mrsas_common_check(instance, cmd) != DDI_SUCCESS)
6336 		rval = DDI_FAILURE;
6337 
6338 	if (instance->tbolt) {
6339 		return_raid_msg_mfi_pkt(instance, cmd);
6340 	} else {
6341 		return_mfi_pkt(instance, cmd);
6342 	}
6343 
6344 	return (rval);
6345 }
6346 
6347 /*
6348  * AEN
6349  */
6350 static int
6351 handle_mfi_aen(struct mrsas_instance *instance, struct mrsas_aen *aen)
6352 {
6353 	int	rval = 0;
6354 
6355 	rval = register_mfi_aen(instance, instance->aen_seq_num,
6356 	    aen->class_locale_word);
6357 
6358 	aen->cmd_status = (uint8_t)rval;
6359 
6360 	return (rval);
6361 }
6362 
6363 static int
6364 register_mfi_aen(struct mrsas_instance *instance, uint32_t seq_num,
6365     uint32_t class_locale_word)
6366 {
6367 	int	ret_val;
6368 
6369 	struct mrsas_cmd	*cmd, *aen_cmd;
6370 	struct mrsas_dcmd_frame	*dcmd;
6371 	union mrsas_evt_class_locale	curr_aen;
6372 	union mrsas_evt_class_locale	prev_aen;
6373 
6374 	con_log(CL_ANN, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
6375 	/*
6376 	 * If there an AEN pending already (aen_cmd), check if the
6377 	 * class_locale of that pending AEN is inclusive of the new
6378 	 * AEN request we currently have. If it is, then we don't have
6379 	 * to do anything. In other words, whichever events the current
6380 	 * AEN request is subscribing to, have already been subscribed
6381 	 * to.
6382 	 *
6383 	 * If the old_cmd is _not_ inclusive, then we have to abort
6384 	 * that command, form a class_locale that is superset of both
6385 	 * old and current and re-issue to the FW
6386 	 */
6387 
6388 	curr_aen.word = LE_32(class_locale_word);
6389 	curr_aen.members.locale = LE_16(curr_aen.members.locale);
6390 	aen_cmd = instance->aen_cmd;
6391 	if (aen_cmd) {
6392 		prev_aen.word = ddi_get32(aen_cmd->frame_dma_obj.acc_handle,
6393 		    &aen_cmd->frame->dcmd.mbox.w[1]);
6394 		prev_aen.word = LE_32(prev_aen.word);
6395 		prev_aen.members.locale = LE_16(prev_aen.members.locale);
6396 		/*
6397 		 * A class whose enum value is smaller is inclusive of all
6398 		 * higher values. If a PROGRESS (= -1) was previously
6399 		 * registered, then a new registration requests for higher
6400 		 * classes need not be sent to FW. They are automatically
6401 		 * included.
6402 		 *
6403 		 * Locale numbers don't have such hierarchy. They are bitmap
6404 		 * values
6405 		 */
6406 		if ((prev_aen.members.class <= curr_aen.members.class) &&
6407 		    !((prev_aen.members.locale & curr_aen.members.locale) ^
6408 		    curr_aen.members.locale)) {
6409 			/*
6410 			 * Previously issued event registration includes
6411 			 * current request. Nothing to do.
6412 			 */
6413 
6414 			return (0);
6415 		} else {
6416 			curr_aen.members.locale |= prev_aen.members.locale;
6417 
6418 			if (prev_aen.members.class < curr_aen.members.class)
6419 				curr_aen.members.class = prev_aen.members.class;
6420 
6421 			ret_val = abort_aen_cmd(instance, aen_cmd);
6422 
6423 			if (ret_val) {
6424 				con_log(CL_ANN, (CE_WARN, "register_mfi_aen: "
6425 				    "failed to abort prevous AEN command"));
6426 
6427 				return (ret_val);
6428 			}
6429 		}
6430 	} else {
6431 		curr_aen.word = LE_32(class_locale_word);
6432 		curr_aen.members.locale = LE_16(curr_aen.members.locale);
6433 	}
6434 
6435 	if (instance->tbolt) {
6436 		cmd = get_raid_msg_mfi_pkt(instance);
6437 	} else {
6438 		cmd = get_mfi_pkt(instance);
6439 	}
6440 
6441 	if (!cmd) {
6442 		DTRACE_PROBE2(mfi_aen_err, uint16_t, instance->fw_outstanding,
6443 		    uint16_t, instance->max_fw_cmds);
6444 		return (ENOMEM);
6445 	}
6446 
6447 	/* Clear the frame buffer and assign back the context id */
6448 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
6449 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
6450 	    cmd->index);
6451 
6452 	dcmd = &cmd->frame->dcmd;
6453 
6454 	/* for(i = 0; i < DCMD_MBOX_SZ; i++) dcmd->mbox.b[i] = 0; */
6455 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
6456 
6457 	(void) memset(instance->mfi_evt_detail_obj.buffer, 0,
6458 	    sizeof (struct mrsas_evt_detail));
6459 
6460 	/* Prepare DCMD for aen registration */
6461 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
6462 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status, 0x0);
6463 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 1);
6464 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
6465 	    MFI_FRAME_DIR_READ);
6466 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
6467 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len,
6468 	    sizeof (struct mrsas_evt_detail));
6469 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
6470 	    MR_DCMD_CTRL_EVENT_WAIT);
6471 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->mbox.w[0], seq_num);
6472 	curr_aen.members.locale = LE_16(curr_aen.members.locale);
6473 	curr_aen.word = LE_32(curr_aen.word);
6474 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->mbox.w[1],
6475 	    curr_aen.word);
6476 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].phys_addr,
6477 	    instance->mfi_evt_detail_obj.dma_cookie[0].dmac_address);
6478 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].length,
6479 	    sizeof (struct mrsas_evt_detail));
6480 
6481 	instance->aen_seq_num = seq_num;
6482 
6483 
6484 	/*
6485 	 * Store reference to the cmd used to register for AEN. When an
6486 	 * application wants us to register for AEN, we have to abort this
6487 	 * cmd and re-register with a new EVENT LOCALE supplied by that app
6488 	 */
6489 	instance->aen_cmd = cmd;
6490 
6491 	cmd->frame_count = 1;
6492 
6493 	/* Issue the aen registration frame */
6494 	/* atomic_add_16 (&instance->fw_outstanding, 1); */
6495 	if (instance->tbolt) {
6496 		mr_sas_tbolt_build_mfi_cmd(instance, cmd);
6497 	}
6498 	instance->func_ptr->issue_cmd(cmd, instance);
6499 
6500 	return (0);
6501 }
6502 
6503 void
6504 display_scsi_inquiry(caddr_t scsi_inq)
6505 {
6506 #define	MAX_SCSI_DEVICE_CODE	14
6507 	int		i;
6508 	char		inquiry_buf[256] = {0};
6509 	int		len;
6510 	const char	*const scsi_device_types[] = {
6511 		"Direct-Access	  ",
6512 		"Sequential-Access",
6513 		"Printer	  ",
6514 		"Processor	  ",
6515 		"WORM		  ",
6516 		"CD-ROM		  ",
6517 		"Scanner	  ",
6518 		"Optical Device	  ",
6519 		"Medium Changer	  ",
6520 		"Communications	  ",
6521 		"Unknown	  ",
6522 		"Unknown	  ",
6523 		"Unknown	  ",
6524 		"Enclosure	  ",
6525 	};
6526 
6527 	len = 0;
6528 
6529 	len += snprintf(inquiry_buf + len, 265 - len, "	 Vendor: ");
6530 	for (i = 8; i < 16; i++) {
6531 		len += snprintf(inquiry_buf + len, 265 - len, "%c",
6532 		    scsi_inq[i]);
6533 	}
6534 
6535 	len += snprintf(inquiry_buf + len, 265 - len, "	 Model: ");
6536 
6537 	for (i = 16; i < 32; i++) {
6538 		len += snprintf(inquiry_buf + len, 265 - len, "%c",
6539 		    scsi_inq[i]);
6540 	}
6541 
6542 	len += snprintf(inquiry_buf + len, 265 - len, "	 Rev: ");
6543 
6544 	for (i = 32; i < 36; i++) {
6545 		len += snprintf(inquiry_buf + len, 265 - len, "%c",
6546 		    scsi_inq[i]);
6547 	}
6548 
6549 	len += snprintf(inquiry_buf + len, 265 - len, "\n");
6550 
6551 
6552 	i = scsi_inq[0] & 0x1f;
6553 
6554 
6555 	len += snprintf(inquiry_buf + len, 265 - len, "	 Type:	 %s ",
6556 	    i < MAX_SCSI_DEVICE_CODE ? scsi_device_types[i] :
6557 	    "Unknown	      ");
6558 
6559 
6560 	len += snprintf(inquiry_buf + len, 265 - len,
6561 	    "		      ANSI SCSI revision: %02x", scsi_inq[2] & 0x07);
6562 
6563 	if ((scsi_inq[2] & 0x07) == 1 && (scsi_inq[3] & 0x0f) == 1) {
6564 		len += snprintf(inquiry_buf + len, 265 - len, " CCS\n");
6565 	} else {
6566 		len += snprintf(inquiry_buf + len, 265 - len, "\n");
6567 	}
6568 
6569 	con_log(CL_DLEVEL2, (CE_CONT, inquiry_buf));
6570 }
6571 
6572 static void
6573 io_timeout_checker(void *arg)
6574 {
6575 	struct scsi_pkt *pkt;
6576 	struct mrsas_instance *instance = arg;
6577 	struct mrsas_cmd	*cmd = NULL;
6578 	struct mrsas_header	*hdr;
6579 	int time = 0;
6580 	int counter = 0;
6581 	struct mlist_head	*pos, *next;
6582 	mlist_t			process_list;
6583 
6584 	if (instance->adapterresetinprogress == 1) {
6585 		con_log(CL_ANN, (CE_NOTE, "io_timeout_checker:"
6586 		    " reset in progress"));
6587 
6588 		instance->timeout_id = timeout(io_timeout_checker,
6589 		    (void *) instance, drv_usectohz(MRSAS_1_SECOND));
6590 		return;
6591 	}
6592 
6593 	/* See if this check needs to be in the beginning or last in ISR */
6594 	if (mrsas_initiate_ocr_if_fw_is_faulty(instance) ==  1) {
6595 		cmn_err(CE_WARN, "io_timeout_checker: "
6596 		    "FW Fault, calling reset adapter");
6597 		cmn_err(CE_CONT, "io_timeout_checker: "
6598 		    "fw_outstanding 0x%X max_fw_cmds 0x%X",
6599 		    instance->fw_outstanding, instance->max_fw_cmds);
6600 		if (instance->adapterresetinprogress == 0) {
6601 			instance->adapterresetinprogress = 1;
6602 			if (instance->tbolt)
6603 				(void) mrsas_tbolt_reset_ppc(instance);
6604 			else
6605 				(void) mrsas_reset_ppc(instance);
6606 			instance->adapterresetinprogress = 0;
6607 		}
6608 		instance->timeout_id = timeout(io_timeout_checker,
6609 		    (void *) instance, drv_usectohz(MRSAS_1_SECOND));
6610 		return;
6611 	}
6612 
6613 	INIT_LIST_HEAD(&process_list);
6614 
6615 	mutex_enter(&instance->cmd_pend_mtx);
6616 	mlist_for_each_safe(pos, next, &instance->cmd_pend_list) {
6617 		cmd = mlist_entry(pos, struct mrsas_cmd, list);
6618 
6619 		if (cmd == NULL) {
6620 			continue;
6621 		}
6622 
6623 		if (cmd->sync_cmd == MRSAS_TRUE) {
6624 			hdr = (struct mrsas_header *)&cmd->frame->hdr;
6625 			if (hdr == NULL) {
6626 				continue;
6627 			}
6628 			time = --cmd->drv_pkt_time;
6629 		} else {
6630 			pkt = cmd->pkt;
6631 			if (pkt == NULL) {
6632 				continue;
6633 			}
6634 			time = --cmd->drv_pkt_time;
6635 		}
6636 		if (time <= 0) {
6637 			cmn_err(CE_WARN, "%llx: "
6638 			    "io_timeout_checker: TIMING OUT: pkt: %p, "
6639 			    "cmd %p fw_outstanding 0x%X max_fw_cmds 0x%X\n",
6640 			    gethrtime(), (void *)pkt, (void *)cmd,
6641 			    instance->fw_outstanding, instance->max_fw_cmds);
6642 
6643 			counter++;
6644 			break;
6645 		}
6646 	}
6647 	mutex_exit(&instance->cmd_pend_mtx);
6648 
6649 	if (counter) {
6650 		if (instance->disable_online_ctrl_reset == 1) {
6651 			cmn_err(CE_WARN, "mr_sas %d: %s(): OCR is NOT "
6652 			    "supported by Firmware, KILL adapter!!!",
6653 			    instance->instance, __func__);
6654 
6655 			if (instance->tbolt)
6656 				mrsas_tbolt_kill_adapter(instance);
6657 			else
6658 				(void) mrsas_kill_adapter(instance);
6659 
6660 			return;
6661 		} else {
6662 			if (cmd->retry_count_for_ocr <=	 IO_RETRY_COUNT) {
6663 				if (instance->adapterresetinprogress == 0) {
6664 					if (instance->tbolt) {
6665 						(void) mrsas_tbolt_reset_ppc(
6666 						    instance);
6667 					} else {
6668 						(void) mrsas_reset_ppc(
6669 						    instance);
6670 					}
6671 				}
6672 			} else {
6673 				cmn_err(CE_WARN,
6674 				    "io_timeout_checker: "
6675 				    "cmd %p cmd->index %d "
6676 				    "timed out even after 3 resets: "
6677 				    "so KILL adapter", (void *)cmd, cmd->index);
6678 
6679 				mrsas_print_cmd_details(instance, cmd, 0xDD);
6680 
6681 				if (instance->tbolt)
6682 					mrsas_tbolt_kill_adapter(instance);
6683 				else
6684 					(void) mrsas_kill_adapter(instance);
6685 				return;
6686 			}
6687 		}
6688 	}
6689 	con_log(CL_ANN, (CE_NOTE, "mrsas: "
6690 	    "schedule next timeout check: "
6691 	    "do timeout \n"));
6692 	instance->timeout_id =
6693 	    timeout(io_timeout_checker, (void *)instance,
6694 	    drv_usectohz(MRSAS_1_SECOND));
6695 }
6696 
6697 static uint32_t
6698 read_fw_status_reg_ppc(struct mrsas_instance *instance)
6699 {
6700 	return ((uint32_t)RD_OB_SCRATCH_PAD_0(instance));
6701 }
6702 
6703 static void
6704 issue_cmd_ppc(struct mrsas_cmd *cmd, struct mrsas_instance *instance)
6705 {
6706 	struct scsi_pkt *pkt;
6707 	atomic_add_16(&instance->fw_outstanding, 1);
6708 
6709 	pkt = cmd->pkt;
6710 	if (pkt) {
6711 		con_log(CL_DLEVEL1, (CE_NOTE, "%llx : issue_cmd_ppc:"
6712 		    "ISSUED CMD TO FW : called : cmd:"
6713 		    ": %p instance : %p pkt : %p pkt_time : %x\n",
6714 		    gethrtime(), (void *)cmd, (void *)instance,
6715 		    (void *)pkt, cmd->drv_pkt_time));
6716 		if (instance->adapterresetinprogress) {
6717 			cmd->drv_pkt_time = (uint16_t)debug_timeout_g;
6718 			con_log(CL_ANN1, (CE_NOTE, "Reset the scsi_pkt timer"));
6719 		} else {
6720 			push_pending_mfi_pkt(instance, cmd);
6721 		}
6722 
6723 	} else {
6724 		con_log(CL_DLEVEL1, (CE_NOTE, "%llx : issue_cmd_ppc:"
6725 		    "ISSUED CMD TO FW : called : cmd : %p, instance: %p"
6726 		    "(NO PKT)\n", gethrtime(), (void *)cmd, (void *)instance));
6727 	}
6728 
6729 	mutex_enter(&instance->reg_write_mtx);
6730 	/* Issue the command to the FW */
6731 	WR_IB_QPORT((cmd->frame_phys_addr) |
6732 	    (((cmd->frame_count - 1) << 1) | 1), instance);
6733 	mutex_exit(&instance->reg_write_mtx);
6734 
6735 }
6736 
6737 /*
6738  * issue_cmd_in_sync_mode
6739  */
6740 static int
6741 issue_cmd_in_sync_mode_ppc(struct mrsas_instance *instance,
6742 struct mrsas_cmd *cmd)
6743 {
6744 	int	i;
6745 	uint32_t	msecs = MFI_POLL_TIMEOUT_SECS * (10 * MILLISEC);
6746 	struct mrsas_header *hdr = &cmd->frame->hdr;
6747 
6748 	con_log(CL_ANN1, (CE_NOTE, "issue_cmd_in_sync_mode_ppc: called"));
6749 
6750 	if (instance->adapterresetinprogress) {
6751 		cmd->drv_pkt_time = ddi_get16(
6752 		    cmd->frame_dma_obj.acc_handle, &hdr->timeout);
6753 		if (cmd->drv_pkt_time < debug_timeout_g)
6754 			cmd->drv_pkt_time = (uint16_t)debug_timeout_g;
6755 
6756 		con_log(CL_ANN1, (CE_NOTE, "sync_mode_ppc: "
6757 		    "issue and return in reset case\n"));
6758 		WR_IB_QPORT((cmd->frame_phys_addr) |
6759 		    (((cmd->frame_count - 1) << 1) | 1), instance);
6760 
6761 		return (DDI_SUCCESS);
6762 	} else {
6763 		con_log(CL_ANN1, (CE_NOTE, "sync_mode_ppc: pushing the pkt\n"));
6764 		push_pending_mfi_pkt(instance, cmd);
6765 	}
6766 
6767 	cmd->cmd_status	= ENODATA;
6768 
6769 	mutex_enter(&instance->reg_write_mtx);
6770 	/* Issue the command to the FW */
6771 	WR_IB_QPORT((cmd->frame_phys_addr) |
6772 	    (((cmd->frame_count - 1) << 1) | 1), instance);
6773 	mutex_exit(&instance->reg_write_mtx);
6774 
6775 	mutex_enter(&instance->int_cmd_mtx);
6776 	for (i = 0; i < msecs && (cmd->cmd_status == ENODATA); i++) {
6777 		cv_wait(&instance->int_cmd_cv, &instance->int_cmd_mtx);
6778 	}
6779 	mutex_exit(&instance->int_cmd_mtx);
6780 
6781 	con_log(CL_ANN1, (CE_NOTE, "issue_cmd_in_sync_mode_ppc: done"));
6782 
6783 	if (i < (msecs -1)) {
6784 		return (DDI_SUCCESS);
6785 	} else {
6786 		return (DDI_FAILURE);
6787 	}
6788 }
6789 
6790 /*
6791  * issue_cmd_in_poll_mode
6792  */
6793 static int
6794 issue_cmd_in_poll_mode_ppc(struct mrsas_instance *instance,
6795     struct mrsas_cmd *cmd)
6796 {
6797 	int		i;
6798 	uint16_t	flags;
6799 	uint32_t	msecs = MFI_POLL_TIMEOUT_SECS * MILLISEC;
6800 	struct mrsas_header *frame_hdr;
6801 
6802 	con_log(CL_ANN1, (CE_NOTE, "issue_cmd_in_poll_mode_ppc: called"));
6803 
6804 	frame_hdr = (struct mrsas_header *)cmd->frame;
6805 	ddi_put8(cmd->frame_dma_obj.acc_handle, &frame_hdr->cmd_status,
6806 	    MFI_CMD_STATUS_POLL_MODE);
6807 	flags = ddi_get16(cmd->frame_dma_obj.acc_handle, &frame_hdr->flags);
6808 	flags	|= MFI_FRAME_DONT_POST_IN_REPLY_QUEUE;
6809 
6810 	ddi_put16(cmd->frame_dma_obj.acc_handle, &frame_hdr->flags, flags);
6811 
6812 	/* issue the frame using inbound queue port */
6813 	WR_IB_QPORT((cmd->frame_phys_addr) |
6814 	    (((cmd->frame_count - 1) << 1) | 1), instance);
6815 
6816 	/* wait for cmd_status to change from 0xFF */
6817 	for (i = 0; i < msecs && (
6818 	    ddi_get8(cmd->frame_dma_obj.acc_handle, &frame_hdr->cmd_status)
6819 	    == MFI_CMD_STATUS_POLL_MODE); i++) {
6820 		drv_usecwait(MILLISEC); /* wait for 1000 usecs */
6821 	}
6822 
6823 	if (ddi_get8(cmd->frame_dma_obj.acc_handle, &frame_hdr->cmd_status)
6824 	    == MFI_CMD_STATUS_POLL_MODE) {
6825 		con_log(CL_ANN, (CE_NOTE, "issue_cmd_in_poll_mode: "
6826 		    "cmd polling timed out"));
6827 		return (DDI_FAILURE);
6828 	}
6829 
6830 	return (DDI_SUCCESS);
6831 }
6832 
6833 static void
6834 enable_intr_ppc(struct mrsas_instance *instance)
6835 {
6836 	uint32_t	mask;
6837 
6838 	con_log(CL_ANN1, (CE_NOTE, "enable_intr_ppc: called"));
6839 
6840 	/* WR_OB_DOORBELL_CLEAR(0xFFFFFFFF, instance); */
6841 	WR_OB_DOORBELL_CLEAR(OB_DOORBELL_CLEAR_MASK, instance);
6842 
6843 	/* WR_OB_INTR_MASK(~0x80000000, instance); */
6844 	WR_OB_INTR_MASK(~(MFI_REPLY_2108_MESSAGE_INTR_MASK), instance);
6845 
6846 	/* dummy read to force PCI flush */
6847 	mask = RD_OB_INTR_MASK(instance);
6848 
6849 	con_log(CL_ANN1, (CE_NOTE, "enable_intr_ppc: "
6850 	    "outbound_intr_mask = 0x%x", mask));
6851 }
6852 
6853 static void
6854 disable_intr_ppc(struct mrsas_instance *instance)
6855 {
6856 	uint32_t	mask;
6857 
6858 	con_log(CL_ANN1, (CE_NOTE, "disable_intr_ppc: called"));
6859 
6860 	con_log(CL_ANN1, (CE_NOTE, "disable_intr_ppc: before : "
6861 	    "outbound_intr_mask = 0x%x", RD_OB_INTR_MASK(instance)));
6862 
6863 	/* WR_OB_INTR_MASK(0xFFFFFFFF, instance); */
6864 	WR_OB_INTR_MASK(OB_INTR_MASK, instance);
6865 
6866 	con_log(CL_ANN1, (CE_NOTE, "disable_intr_ppc: after : "
6867 	    "outbound_intr_mask = 0x%x", RD_OB_INTR_MASK(instance)));
6868 
6869 	/* dummy read to force PCI flush */
6870 	mask = RD_OB_INTR_MASK(instance);
6871 #ifdef lint
6872 	mask = mask;
6873 #endif
6874 }
6875 
6876 static int
6877 intr_ack_ppc(struct mrsas_instance *instance)
6878 {
6879 	uint32_t	status;
6880 	int ret = DDI_INTR_CLAIMED;
6881 
6882 	con_log(CL_ANN1, (CE_NOTE, "intr_ack_ppc: called"));
6883 
6884 	/* check if it is our interrupt */
6885 	status = RD_OB_INTR_STATUS(instance);
6886 
6887 	con_log(CL_ANN1, (CE_NOTE, "intr_ack_ppc: status = 0x%x", status));
6888 
6889 	if (!(status & MFI_REPLY_2108_MESSAGE_INTR)) {
6890 		ret = DDI_INTR_UNCLAIMED;
6891 	}
6892 
6893 	if (mrsas_check_acc_handle(instance->regmap_handle) != DDI_SUCCESS) {
6894 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
6895 		ret = DDI_INTR_UNCLAIMED;
6896 	}
6897 
6898 	if (ret == DDI_INTR_UNCLAIMED) {
6899 		return (ret);
6900 	}
6901 	/* clear the interrupt by writing back the same value */
6902 	WR_OB_DOORBELL_CLEAR(status, instance);
6903 
6904 	/* dummy READ */
6905 	status = RD_OB_INTR_STATUS(instance);
6906 
6907 	con_log(CL_ANN1, (CE_NOTE, "intr_ack_ppc: interrupt cleared"));
6908 
6909 	return (ret);
6910 }
6911 
6912 /*
6913  * Marks HBA as bad. This will be called either when an
6914  * IO packet times out even after 3 FW resets
6915  * or FW is found to be fault even after 3 continuous resets.
6916  */
6917 
6918 static int
6919 mrsas_kill_adapter(struct mrsas_instance *instance)
6920 {
6921 	if (instance->deadadapter == 1)
6922 		return (DDI_FAILURE);
6923 
6924 	con_log(CL_ANN1, (CE_NOTE, "mrsas_kill_adapter: "
6925 	    "Writing to doorbell with MFI_STOP_ADP "));
6926 	mutex_enter(&instance->ocr_flags_mtx);
6927 	instance->deadadapter = 1;
6928 	mutex_exit(&instance->ocr_flags_mtx);
6929 	instance->func_ptr->disable_intr(instance);
6930 	WR_IB_DOORBELL(MFI_STOP_ADP, instance);
6931 	(void) mrsas_complete_pending_cmds(instance);
6932 	return (DDI_SUCCESS);
6933 }
6934 
6935 
6936 static int
6937 mrsas_reset_ppc(struct mrsas_instance *instance)
6938 {
6939 	uint32_t status;
6940 	uint32_t retry = 0;
6941 	uint32_t cur_abs_reg_val;
6942 	uint32_t fw_state;
6943 
6944 	con_log(CL_ANN, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
6945 
6946 	if (instance->deadadapter == 1) {
6947 		cmn_err(CE_WARN, "mrsas_reset_ppc: "
6948 		    "no more resets as HBA has been marked dead ");
6949 		return (DDI_FAILURE);
6950 	}
6951 	mutex_enter(&instance->ocr_flags_mtx);
6952 	instance->adapterresetinprogress = 1;
6953 	mutex_exit(&instance->ocr_flags_mtx);
6954 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: adpterresetinprogress "
6955 	    "flag set, time %llx", gethrtime()));
6956 
6957 	instance->func_ptr->disable_intr(instance);
6958 retry_reset:
6959 	WR_IB_WRITE_SEQ(0, instance);
6960 	WR_IB_WRITE_SEQ(4, instance);
6961 	WR_IB_WRITE_SEQ(0xb, instance);
6962 	WR_IB_WRITE_SEQ(2, instance);
6963 	WR_IB_WRITE_SEQ(7, instance);
6964 	WR_IB_WRITE_SEQ(0xd, instance);
6965 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: magic number written "
6966 	    "to write sequence register\n"));
6967 	delay(100 * drv_usectohz(MILLISEC));
6968 	status = RD_OB_DRWE(instance);
6969 
6970 	while (!(status & DIAG_WRITE_ENABLE)) {
6971 		delay(100 * drv_usectohz(MILLISEC));
6972 		status = RD_OB_DRWE(instance);
6973 		if (retry++ == 100) {
6974 			cmn_err(CE_WARN, "mrsas_reset_ppc: DRWE bit "
6975 			    "check retry count %d", retry);
6976 			return (DDI_FAILURE);
6977 		}
6978 	}
6979 	WR_IB_DRWE(status | DIAG_RESET_ADAPTER, instance);
6980 	delay(100 * drv_usectohz(MILLISEC));
6981 	status = RD_OB_DRWE(instance);
6982 	while (status & DIAG_RESET_ADAPTER) {
6983 		delay(100 * drv_usectohz(MILLISEC));
6984 		status = RD_OB_DRWE(instance);
6985 		if (retry++ == 100) {
6986 			cmn_err(CE_WARN, "mrsas_reset_ppc: "
6987 			    "RESET FAILED. KILL adapter called.");
6988 
6989 			(void) mrsas_kill_adapter(instance);
6990 			return (DDI_FAILURE);
6991 		}
6992 	}
6993 	con_log(CL_ANN, (CE_NOTE, "mrsas_reset_ppc: Adapter reset complete"));
6994 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
6995 	    "Calling mfi_state_transition_to_ready"));
6996 
6997 	/* Mark HBA as bad, if FW is fault after 3 continuous resets */
6998 	if (mfi_state_transition_to_ready(instance) ||
6999 	    debug_fw_faults_after_ocr_g == 1) {
7000 		cur_abs_reg_val =
7001 		    instance->func_ptr->read_fw_status_reg(instance);
7002 		fw_state	= cur_abs_reg_val & MFI_STATE_MASK;
7003 
7004 #ifdef OCRDEBUG
7005 		con_log(CL_ANN1, (CE_NOTE,
7006 		    "mrsas_reset_ppc :before fake: FW is not ready "
7007 		    "FW state = 0x%x", fw_state));
7008 		if (debug_fw_faults_after_ocr_g == 1)
7009 			fw_state = MFI_STATE_FAULT;
7010 #endif
7011 
7012 		con_log(CL_ANN1, (CE_NOTE,  "mrsas_reset_ppc : FW is not ready "
7013 		    "FW state = 0x%x", fw_state));
7014 
7015 		if (fw_state == MFI_STATE_FAULT) {
7016 			/* increment the count */
7017 			instance->fw_fault_count_after_ocr++;
7018 			if (instance->fw_fault_count_after_ocr
7019 			    < MAX_FW_RESET_COUNT) {
7020 				cmn_err(CE_WARN, "mrsas_reset_ppc: "
7021 				    "FW is in fault after OCR count %d "
7022 				    "Retry Reset",
7023 				    instance->fw_fault_count_after_ocr);
7024 				goto retry_reset;
7025 
7026 			} else {
7027 				cmn_err(CE_WARN, "mrsas_reset_ppc: "
7028 				    "Max Reset Count exceeded >%d"
7029 				    "Mark HBA as bad, KILL adapter",
7030 				    MAX_FW_RESET_COUNT);
7031 
7032 				(void) mrsas_kill_adapter(instance);
7033 				return (DDI_FAILURE);
7034 			}
7035 		}
7036 	}
7037 	/* reset the counter as FW is up after OCR */
7038 	instance->fw_fault_count_after_ocr = 0;
7039 
7040 
7041 	ddi_put32(instance->mfi_internal_dma_obj.acc_handle,
7042 	    instance->producer, 0);
7043 
7044 	ddi_put32(instance->mfi_internal_dma_obj.acc_handle,
7045 	    instance->consumer, 0);
7046 
7047 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
7048 	    " after resetting produconsumer chck indexs:"
7049 	    "producer %x consumer %x", *instance->producer,
7050 	    *instance->consumer));
7051 
7052 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
7053 	    "Calling mrsas_issue_init_mfi"));
7054 	(void) mrsas_issue_init_mfi(instance);
7055 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
7056 	    "mrsas_issue_init_mfi Done"));
7057 
7058 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
7059 	    "Calling mrsas_print_pending_cmd\n"));
7060 	(void) mrsas_print_pending_cmds(instance);
7061 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
7062 	    "mrsas_print_pending_cmd done\n"));
7063 
7064 	instance->func_ptr->enable_intr(instance);
7065 	instance->fw_outstanding = 0;
7066 
7067 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
7068 	    "Calling mrsas_issue_pending_cmds"));
7069 	(void) mrsas_issue_pending_cmds(instance);
7070 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
7071 	    "issue_pending_cmds done.\n"));
7072 
7073 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
7074 	    "Calling aen registration"));
7075 
7076 
7077 	instance->aen_cmd->retry_count_for_ocr = 0;
7078 	instance->aen_cmd->drv_pkt_time = 0;
7079 
7080 	instance->func_ptr->issue_cmd(instance->aen_cmd, instance);
7081 	con_log(CL_ANN1, (CE_NOTE, "Unsetting adpresetinprogress flag.\n"));
7082 
7083 	mutex_enter(&instance->ocr_flags_mtx);
7084 	instance->adapterresetinprogress = 0;
7085 	mutex_exit(&instance->ocr_flags_mtx);
7086 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
7087 	    "adpterresetinprogress flag unset"));
7088 
7089 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc done\n"));
7090 	return (DDI_SUCCESS);
7091 }
7092 
7093 /*
7094  * FMA functions.
7095  */
7096 int
7097 mrsas_common_check(struct mrsas_instance *instance, struct  mrsas_cmd *cmd)
7098 {
7099 	int ret = DDI_SUCCESS;
7100 
7101 	if (cmd != NULL &&
7102 	    mrsas_check_dma_handle(cmd->frame_dma_obj.dma_handle) !=
7103 	    DDI_SUCCESS) {
7104 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
7105 		if (cmd->pkt != NULL) {
7106 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
7107 			cmd->pkt->pkt_statistics = 0;
7108 		}
7109 		ret = DDI_FAILURE;
7110 	}
7111 	if (mrsas_check_dma_handle(instance->mfi_internal_dma_obj.dma_handle)
7112 	    != DDI_SUCCESS) {
7113 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
7114 		if (cmd != NULL && cmd->pkt != NULL) {
7115 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
7116 			cmd->pkt->pkt_statistics = 0;
7117 		}
7118 		ret = DDI_FAILURE;
7119 	}
7120 	if (mrsas_check_dma_handle(instance->mfi_evt_detail_obj.dma_handle) !=
7121 	    DDI_SUCCESS) {
7122 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
7123 		if (cmd != NULL && cmd->pkt != NULL) {
7124 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
7125 			cmd->pkt->pkt_statistics = 0;
7126 		}
7127 		ret = DDI_FAILURE;
7128 	}
7129 	if (mrsas_check_acc_handle(instance->regmap_handle) != DDI_SUCCESS) {
7130 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
7131 
7132 		ddi_fm_acc_err_clear(instance->regmap_handle, DDI_FME_VER0);
7133 
7134 		if (cmd != NULL && cmd->pkt != NULL) {
7135 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
7136 			cmd->pkt->pkt_statistics = 0;
7137 		}
7138 		ret = DDI_FAILURE;
7139 	}
7140 
7141 	return (ret);
7142 }
7143 
7144 /*ARGSUSED*/
7145 static int
7146 mrsas_fm_error_cb(dev_info_t *dip, ddi_fm_error_t *err, const void *impl_data)
7147 {
7148 	/*
7149 	 * as the driver can always deal with an error in any dma or
7150 	 * access handle, we can just return the fme_status value.
7151 	 */
7152 	pci_ereport_post(dip, err, NULL);
7153 	return (err->fme_status);
7154 }
7155 
7156 static void
7157 mrsas_fm_init(struct mrsas_instance *instance)
7158 {
7159 	/* Need to change iblock to priority for new MSI intr */
7160 	ddi_iblock_cookie_t fm_ibc;
7161 
7162 	/* Only register with IO Fault Services if we have some capability */
7163 	if (instance->fm_capabilities) {
7164 		/* Adjust access and dma attributes for FMA */
7165 		endian_attr.devacc_attr_access = DDI_FLAGERR_ACC;
7166 		mrsas_generic_dma_attr.dma_attr_flags = DDI_DMA_FLAGERR;
7167 
7168 		/*
7169 		 * Register capabilities with IO Fault Services.
7170 		 * fm_capabilities will be updated to indicate
7171 		 * capabilities actually supported (not requested.)
7172 		 */
7173 
7174 		ddi_fm_init(instance->dip, &instance->fm_capabilities, &fm_ibc);
7175 
7176 		/*
7177 		 * Initialize pci ereport capabilities if ereport
7178 		 * capable (should always be.)
7179 		 */
7180 
7181 		if (DDI_FM_EREPORT_CAP(instance->fm_capabilities) ||
7182 		    DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
7183 			pci_ereport_setup(instance->dip);
7184 		}
7185 
7186 		/*
7187 		 * Register error callback if error callback capable.
7188 		 */
7189 		if (DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
7190 			ddi_fm_handler_register(instance->dip,
7191 			    mrsas_fm_error_cb, (void*) instance);
7192 		}
7193 	} else {
7194 		endian_attr.devacc_attr_access = DDI_DEFAULT_ACC;
7195 		mrsas_generic_dma_attr.dma_attr_flags = 0;
7196 	}
7197 }
7198 
7199 static void
7200 mrsas_fm_fini(struct mrsas_instance *instance)
7201 {
7202 	/* Only unregister FMA capabilities if registered */
7203 	if (instance->fm_capabilities) {
7204 		/*
7205 		 * Un-register error callback if error callback capable.
7206 		 */
7207 		if (DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
7208 			ddi_fm_handler_unregister(instance->dip);
7209 		}
7210 
7211 		/*
7212 		 * Release any resources allocated by pci_ereport_setup()
7213 		 */
7214 		if (DDI_FM_EREPORT_CAP(instance->fm_capabilities) ||
7215 		    DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
7216 			pci_ereport_teardown(instance->dip);
7217 		}
7218 
7219 		/* Unregister from IO Fault Services */
7220 		ddi_fm_fini(instance->dip);
7221 
7222 		/* Adjust access and dma attributes for FMA */
7223 		endian_attr.devacc_attr_access = DDI_DEFAULT_ACC;
7224 		mrsas_generic_dma_attr.dma_attr_flags = 0;
7225 	}
7226 }
7227 
7228 int
7229 mrsas_check_acc_handle(ddi_acc_handle_t handle)
7230 {
7231 	ddi_fm_error_t de;
7232 
7233 	if (handle == NULL) {
7234 		return (DDI_FAILURE);
7235 	}
7236 
7237 	ddi_fm_acc_err_get(handle, &de, DDI_FME_VERSION);
7238 
7239 	return (de.fme_status);
7240 }
7241 
7242 int
7243 mrsas_check_dma_handle(ddi_dma_handle_t handle)
7244 {
7245 	ddi_fm_error_t de;
7246 
7247 	if (handle == NULL) {
7248 		return (DDI_FAILURE);
7249 	}
7250 
7251 	ddi_fm_dma_err_get(handle, &de, DDI_FME_VERSION);
7252 
7253 	return (de.fme_status);
7254 }
7255 
7256 void
7257 mrsas_fm_ereport(struct mrsas_instance *instance, char *detail)
7258 {
7259 	uint64_t ena;
7260 	char buf[FM_MAX_CLASS];
7261 
7262 	(void) snprintf(buf, FM_MAX_CLASS, "%s.%s", DDI_FM_DEVICE, detail);
7263 	ena = fm_ena_generate(0, FM_ENA_FMT1);
7264 	if (DDI_FM_EREPORT_CAP(instance->fm_capabilities)) {
7265 		ddi_fm_ereport_post(instance->dip, buf, ena, DDI_NOSLEEP,
7266 		    FM_VERSION, DATA_TYPE_UINT8, FM_EREPORT_VERSION, NULL);
7267 	}
7268 }
7269 
7270 static int
7271 mrsas_add_intrs(struct mrsas_instance *instance, int intr_type)
7272 {
7273 
7274 	dev_info_t *dip = instance->dip;
7275 	int	avail, actual, count;
7276 	int	i, flag, ret;
7277 
7278 	con_log(CL_DLEVEL1, (CE_NOTE, "mrsas_add_intrs: intr_type = %x",
7279 	    intr_type));
7280 
7281 	/* Get number of interrupts */
7282 	ret = ddi_intr_get_nintrs(dip, intr_type, &count);
7283 	if ((ret != DDI_SUCCESS) || (count == 0)) {
7284 		con_log(CL_ANN, (CE_WARN, "ddi_intr_get_nintrs() failed:"
7285 		    "ret %d count %d", ret, count));
7286 
7287 		return (DDI_FAILURE);
7288 	}
7289 
7290 	con_log(CL_DLEVEL1, (CE_NOTE, "mrsas_add_intrs: count = %d ", count));
7291 
7292 	/* Get number of available interrupts */
7293 	ret = ddi_intr_get_navail(dip, intr_type, &avail);
7294 	if ((ret != DDI_SUCCESS) || (avail == 0)) {
7295 		con_log(CL_ANN, (CE_WARN, "ddi_intr_get_navail() failed:"
7296 		    "ret %d avail %d", ret, avail));
7297 
7298 		return (DDI_FAILURE);
7299 	}
7300 	con_log(CL_DLEVEL1, (CE_NOTE, "mrsas_add_intrs: avail = %d ", avail));
7301 
7302 	/* Only one interrupt routine. So limit the count to 1 */
7303 	if (count > 1) {
7304 		count = 1;
7305 	}
7306 
7307 	/*
7308 	 * Allocate an array of interrupt handlers. Currently we support
7309 	 * only one interrupt. The framework can be extended later.
7310 	 */
7311 	instance->intr_htable_size = count * sizeof (ddi_intr_handle_t);
7312 	instance->intr_htable = kmem_zalloc(instance->intr_htable_size,
7313 	    KM_SLEEP);
7314 	ASSERT(instance->intr_htable);
7315 
7316 	flag = ((intr_type == DDI_INTR_TYPE_MSI) ||
7317 	    (intr_type == DDI_INTR_TYPE_MSIX)) ?
7318 	    DDI_INTR_ALLOC_STRICT : DDI_INTR_ALLOC_NORMAL;
7319 
7320 	/* Allocate interrupt */
7321 	ret = ddi_intr_alloc(dip, instance->intr_htable, intr_type, 0,
7322 	    count, &actual, flag);
7323 
7324 	if ((ret != DDI_SUCCESS) || (actual == 0)) {
7325 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
7326 		    "avail = %d", avail));
7327 		goto mrsas_free_htable;
7328 	}
7329 
7330 	if (actual < count) {
7331 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
7332 		    "Requested = %d  Received = %d", count, actual));
7333 	}
7334 	instance->intr_cnt = actual;
7335 
7336 	/*
7337 	 * Get the priority of the interrupt allocated.
7338 	 */
7339 	if ((ret = ddi_intr_get_pri(instance->intr_htable[0],
7340 	    &instance->intr_pri)) != DDI_SUCCESS) {
7341 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
7342 		    "get priority call failed"));
7343 		goto mrsas_free_handles;
7344 	}
7345 
7346 	/*
7347 	 * Test for high level mutex. we don't support them.
7348 	 */
7349 	if (instance->intr_pri >= ddi_intr_get_hilevel_pri()) {
7350 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
7351 		    "High level interrupts not supported."));
7352 		goto mrsas_free_handles;
7353 	}
7354 
7355 	con_log(CL_DLEVEL1, (CE_NOTE, "mrsas_add_intrs: intr_pri = 0x%x ",
7356 	    instance->intr_pri));
7357 
7358 	/* Call ddi_intr_add_handler() */
7359 	for (i = 0; i < actual; i++) {
7360 		ret = ddi_intr_add_handler(instance->intr_htable[i],
7361 		    (ddi_intr_handler_t *)mrsas_isr, (caddr_t)instance,
7362 		    (caddr_t)(uintptr_t)i);
7363 
7364 		if (ret != DDI_SUCCESS) {
7365 			con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs:"
7366 			    "failed %d", ret));
7367 			goto mrsas_free_handles;
7368 		}
7369 
7370 	}
7371 
7372 	con_log(CL_DLEVEL1, (CE_NOTE, " ddi_intr_add_handler done"));
7373 
7374 	if ((ret = ddi_intr_get_cap(instance->intr_htable[0],
7375 	    &instance->intr_cap)) != DDI_SUCCESS) {
7376 		con_log(CL_ANN, (CE_WARN, "ddi_intr_get_cap() failed %d",
7377 		    ret));
7378 		goto mrsas_free_handlers;
7379 	}
7380 
7381 	if (instance->intr_cap &  DDI_INTR_FLAG_BLOCK) {
7382 		con_log(CL_ANN, (CE_WARN, "Calling ddi_intr_block _enable"));
7383 
7384 		(void) ddi_intr_block_enable(instance->intr_htable,
7385 		    instance->intr_cnt);
7386 	} else {
7387 		con_log(CL_ANN, (CE_NOTE, " calling ddi_intr_enable"));
7388 
7389 		for (i = 0; i < instance->intr_cnt; i++) {
7390 			(void) ddi_intr_enable(instance->intr_htable[i]);
7391 			con_log(CL_ANN, (CE_NOTE, "ddi intr enable returns "
7392 			    "%d", i));
7393 		}
7394 	}
7395 
7396 	return (DDI_SUCCESS);
7397 
7398 mrsas_free_handlers:
7399 	for (i = 0; i < actual; i++)
7400 		(void) ddi_intr_remove_handler(instance->intr_htable[i]);
7401 
7402 mrsas_free_handles:
7403 	for (i = 0; i < actual; i++)
7404 		(void) ddi_intr_free(instance->intr_htable[i]);
7405 
7406 mrsas_free_htable:
7407 	if (instance->intr_htable != NULL)
7408 		kmem_free(instance->intr_htable, instance->intr_htable_size);
7409 
7410 	instance->intr_htable = NULL;
7411 	instance->intr_htable_size = 0;
7412 
7413 	return (DDI_FAILURE);
7414 
7415 }
7416 
7417 
7418 static void
7419 mrsas_rem_intrs(struct mrsas_instance *instance)
7420 {
7421 	int i;
7422 
7423 	con_log(CL_ANN, (CE_NOTE, "mrsas_rem_intrs called"));
7424 
7425 	/* Disable all interrupts first */
7426 	if (instance->intr_cap & DDI_INTR_FLAG_BLOCK) {
7427 		(void) ddi_intr_block_disable(instance->intr_htable,
7428 		    instance->intr_cnt);
7429 	} else {
7430 		for (i = 0; i < instance->intr_cnt; i++) {
7431 			(void) ddi_intr_disable(instance->intr_htable[i]);
7432 		}
7433 	}
7434 
7435 	/* Remove all the handlers */
7436 
7437 	for (i = 0; i < instance->intr_cnt; i++) {
7438 		(void) ddi_intr_remove_handler(instance->intr_htable[i]);
7439 		(void) ddi_intr_free(instance->intr_htable[i]);
7440 	}
7441 
7442 	if (instance->intr_htable != NULL)
7443 		kmem_free(instance->intr_htable, instance->intr_htable_size);
7444 
7445 	instance->intr_htable = NULL;
7446 	instance->intr_htable_size = 0;
7447 
7448 }
7449 
7450 static int
7451 mrsas_tran_bus_config(dev_info_t *parent, uint_t flags,
7452     ddi_bus_config_op_t op, void *arg, dev_info_t **childp)
7453 {
7454 	struct mrsas_instance *instance;
7455 	int config;
7456 	int rval  = NDI_SUCCESS;
7457 
7458 	char *ptr = NULL;
7459 	int tgt, lun;
7460 
7461 	con_log(CL_ANN1, (CE_NOTE, "Bus config called for op = %x", op));
7462 
7463 	if ((instance = ddi_get_soft_state(mrsas_state,
7464 	    ddi_get_instance(parent))) == NULL) {
7465 		return (NDI_FAILURE);
7466 	}
7467 
7468 	/* Hold nexus during bus_config */
7469 	ndi_devi_enter(parent, &config);
7470 	switch (op) {
7471 	case BUS_CONFIG_ONE: {
7472 
7473 		/* parse wwid/target name out of name given */
7474 		if ((ptr = strchr((char *)arg, '@')) == NULL) {
7475 			rval = NDI_FAILURE;
7476 			break;
7477 		}
7478 		ptr++;
7479 
7480 		if (mrsas_parse_devname(arg, &tgt, &lun) != 0) {
7481 			rval = NDI_FAILURE;
7482 			break;
7483 		}
7484 
7485 		if (lun == 0) {
7486 			rval = mrsas_config_ld(instance, tgt, lun, childp);
7487 #ifdef PDSUPPORT
7488 		} else if (instance->tbolt == 1 && lun != 0) {
7489 			rval = mrsas_tbolt_config_pd(instance,
7490 			    tgt, lun, childp);
7491 #endif
7492 		} else {
7493 			rval = NDI_FAILURE;
7494 		}
7495 
7496 		break;
7497 	}
7498 	case BUS_CONFIG_DRIVER:
7499 	case BUS_CONFIG_ALL: {
7500 
7501 		rval = mrsas_config_all_devices(instance);
7502 
7503 		rval = NDI_SUCCESS;
7504 		break;
7505 	}
7506 	}
7507 
7508 	if (rval == NDI_SUCCESS) {
7509 		rval = ndi_busop_bus_config(parent, flags, op, arg, childp, 0);
7510 
7511 	}
7512 	ndi_devi_exit(parent, config);
7513 
7514 	con_log(CL_ANN1, (CE_NOTE, "mrsas_tran_bus_config: rval = %x",
7515 	    rval));
7516 	return (rval);
7517 }
7518 
7519 static int
7520 mrsas_config_all_devices(struct mrsas_instance *instance)
7521 {
7522 	int rval, tgt;
7523 
7524 	for (tgt = 0; tgt < MRDRV_MAX_LD; tgt++) {
7525 		(void) mrsas_config_ld(instance, tgt, 0, NULL);
7526 
7527 	}
7528 
7529 #ifdef PDSUPPORT
7530 	/* Config PD devices connected to the card */
7531 	if (instance->tbolt) {
7532 		for (tgt = 0; tgt < instance->mr_tbolt_pd_max; tgt++) {
7533 			(void) mrsas_tbolt_config_pd(instance, tgt, 1, NULL);
7534 		}
7535 	}
7536 #endif
7537 
7538 	rval = NDI_SUCCESS;
7539 	return (rval);
7540 }
7541 
7542 static int
7543 mrsas_parse_devname(char *devnm, int *tgt, int *lun)
7544 {
7545 	char devbuf[SCSI_MAXNAMELEN];
7546 	char *addr;
7547 	char *p,  *tp, *lp;
7548 	long num;
7549 
7550 	/* Parse dev name and address */
7551 	(void) strcpy(devbuf, devnm);
7552 	addr = "";
7553 	for (p = devbuf; *p != '\0'; p++) {
7554 		if (*p == '@') {
7555 			addr = p + 1;
7556 			*p = '\0';
7557 		} else if (*p == ':') {
7558 			*p = '\0';
7559 			break;
7560 		}
7561 	}
7562 
7563 	/* Parse target and lun */
7564 	for (p = tp = addr, lp = NULL; *p != '\0'; p++) {
7565 		if (*p == ',') {
7566 			lp = p + 1;
7567 			*p = '\0';
7568 			break;
7569 		}
7570 	}
7571 	if (tgt && tp) {
7572 		if (ddi_strtol(tp, NULL, 0x10, &num)) {
7573 			return (DDI_FAILURE); /* Can declare this as constant */
7574 		}
7575 			*tgt = (int)num;
7576 	}
7577 	if (lun && lp) {
7578 		if (ddi_strtol(lp, NULL, 0x10, &num)) {
7579 			return (DDI_FAILURE);
7580 		}
7581 			*lun = (int)num;
7582 	}
7583 	return (DDI_SUCCESS);  /* Success case */
7584 }
7585 
7586 static int
7587 mrsas_config_ld(struct mrsas_instance *instance, uint16_t tgt,
7588     uint8_t lun, dev_info_t **ldip)
7589 {
7590 	struct scsi_device *sd;
7591 	dev_info_t *child;
7592 	int rval;
7593 
7594 	con_log(CL_DLEVEL1, (CE_NOTE, "mrsas_config_ld: t = %d l = %d",
7595 	    tgt, lun));
7596 
7597 	if ((child = mrsas_find_child(instance, tgt, lun)) != NULL) {
7598 		if (ldip) {
7599 			*ldip = child;
7600 		}
7601 		if (instance->mr_ld_list[tgt].flag != MRDRV_TGT_VALID) {
7602 			rval = mrsas_service_evt(instance, tgt, 0,
7603 			    MRSAS_EVT_UNCONFIG_TGT, NULL);
7604 			con_log(CL_ANN1, (CE_WARN,
7605 			    "mr_sas: DELETING STALE ENTRY rval = %d "
7606 			    "tgt id = %d ", rval, tgt));
7607 			return (NDI_FAILURE);
7608 		}
7609 		return (NDI_SUCCESS);
7610 	}
7611 
7612 	sd = kmem_zalloc(sizeof (struct scsi_device), KM_SLEEP);
7613 	sd->sd_address.a_hba_tran = instance->tran;
7614 	sd->sd_address.a_target = (uint16_t)tgt;
7615 	sd->sd_address.a_lun = (uint8_t)lun;
7616 
7617 	if (scsi_hba_probe(sd, NULL) == SCSIPROBE_EXISTS)
7618 		rval = mrsas_config_scsi_device(instance, sd, ldip);
7619 	else
7620 		rval = NDI_FAILURE;
7621 
7622 	/* sd_unprobe is blank now. Free buffer manually */
7623 	if (sd->sd_inq) {
7624 		kmem_free(sd->sd_inq, SUN_INQSIZE);
7625 		sd->sd_inq = (struct scsi_inquiry *)NULL;
7626 	}
7627 
7628 	kmem_free(sd, sizeof (struct scsi_device));
7629 	con_log(CL_DLEVEL1, (CE_NOTE, "mrsas_config_ld: return rval = %d",
7630 	    rval));
7631 	return (rval);
7632 }
7633 
7634 int
7635 mrsas_config_scsi_device(struct mrsas_instance *instance,
7636     struct scsi_device *sd, dev_info_t **dipp)
7637 {
7638 	char *nodename = NULL;
7639 	char **compatible = NULL;
7640 	int ncompatible = 0;
7641 	char *childname;
7642 	dev_info_t *ldip = NULL;
7643 	int tgt = sd->sd_address.a_target;
7644 	int lun = sd->sd_address.a_lun;
7645 	int dtype = sd->sd_inq->inq_dtype & DTYPE_MASK;
7646 	int rval;
7647 
7648 	con_log(CL_DLEVEL1, (CE_NOTE, "mr_sas: scsi_device t%dL%d", tgt, lun));
7649 	scsi_hba_nodename_compatible_get(sd->sd_inq, NULL, dtype,
7650 	    NULL, &nodename, &compatible, &ncompatible);
7651 
7652 	if (nodename == NULL) {
7653 		con_log(CL_ANN1, (CE_WARN, "mr_sas: Found no compatible driver "
7654 		    "for t%dL%d", tgt, lun));
7655 		rval = NDI_FAILURE;
7656 		goto finish;
7657 	}
7658 
7659 	childname = (dtype == DTYPE_DIRECT) ? "sd" : nodename;
7660 	con_log(CL_DLEVEL1, (CE_NOTE,
7661 	    "mr_sas: Childname = %2s nodename = %s", childname, nodename));
7662 
7663 	/* Create a dev node */
7664 	rval = ndi_devi_alloc(instance->dip, childname, DEVI_SID_NODEID, &ldip);
7665 	con_log(CL_DLEVEL1, (CE_NOTE,
7666 	    "mr_sas_config_scsi_device: ndi_devi_alloc rval = %x", rval));
7667 	if (rval == NDI_SUCCESS) {
7668 		if (ndi_prop_update_int(DDI_DEV_T_NONE, ldip, "target", tgt) !=
7669 		    DDI_PROP_SUCCESS) {
7670 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to create "
7671 			    "property for t%dl%d target", tgt, lun));
7672 			rval = NDI_FAILURE;
7673 			goto finish;
7674 		}
7675 		if (ndi_prop_update_int(DDI_DEV_T_NONE, ldip, "lun", lun) !=
7676 		    DDI_PROP_SUCCESS) {
7677 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to create "
7678 			    "property for t%dl%d lun", tgt, lun));
7679 			rval = NDI_FAILURE;
7680 			goto finish;
7681 		}
7682 
7683 		if (ndi_prop_update_string_array(DDI_DEV_T_NONE, ldip,
7684 		    "compatible", compatible, ncompatible) !=
7685 		    DDI_PROP_SUCCESS) {
7686 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to create "
7687 			    "property for t%dl%d compatible", tgt, lun));
7688 			rval = NDI_FAILURE;
7689 			goto finish;
7690 		}
7691 
7692 		rval = ndi_devi_online(ldip, NDI_ONLINE_ATTACH);
7693 		if (rval != NDI_SUCCESS) {
7694 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to online "
7695 			    "t%dl%d", tgt, lun));
7696 			ndi_prop_remove_all(ldip);
7697 			(void) ndi_devi_free(ldip);
7698 		} else {
7699 			con_log(CL_ANN1, (CE_CONT, "mr_sas: online Done :"
7700 			    "0 t%dl%d", tgt, lun));
7701 		}
7702 
7703 	}
7704 finish:
7705 	if (dipp) {
7706 		*dipp = ldip;
7707 	}
7708 
7709 	con_log(CL_DLEVEL1, (CE_NOTE,
7710 	    "mr_sas: config_scsi_device rval = %d t%dL%d",
7711 	    rval, tgt, lun));
7712 	scsi_hba_nodename_compatible_free(nodename, compatible);
7713 	return (rval);
7714 }
7715 
7716 /*ARGSUSED*/
7717 int
7718 mrsas_service_evt(struct mrsas_instance *instance, int tgt, int lun, int event,
7719     uint64_t wwn)
7720 {
7721 	struct mrsas_eventinfo *mrevt = NULL;
7722 
7723 	con_log(CL_ANN1, (CE_NOTE,
7724 	    "mrsas_service_evt called for t%dl%d event = %d",
7725 	    tgt, lun, event));
7726 
7727 	if ((instance->taskq == NULL) || (mrevt =
7728 	    kmem_zalloc(sizeof (struct mrsas_eventinfo), KM_NOSLEEP)) == NULL) {
7729 		return (ENOMEM);
7730 	}
7731 
7732 	mrevt->instance = instance;
7733 	mrevt->tgt = tgt;
7734 	mrevt->lun = lun;
7735 	mrevt->event = event;
7736 	mrevt->wwn = wwn;
7737 
7738 	if ((ddi_taskq_dispatch(instance->taskq,
7739 	    (void (*)(void *))mrsas_issue_evt_taskq, mrevt, DDI_NOSLEEP)) !=
7740 	    DDI_SUCCESS) {
7741 		con_log(CL_ANN1, (CE_NOTE,
7742 		    "mr_sas: Event task failed for t%dl%d event = %d",
7743 		    tgt, lun, event));
7744 		kmem_free(mrevt, sizeof (struct mrsas_eventinfo));
7745 		return (DDI_FAILURE);
7746 	}
7747 	DTRACE_PROBE3(service_evt, int, tgt, int, lun, int, event);
7748 	return (DDI_SUCCESS);
7749 }
7750 
7751 static void
7752 mrsas_issue_evt_taskq(struct mrsas_eventinfo *mrevt)
7753 {
7754 	struct mrsas_instance *instance = mrevt->instance;
7755 	dev_info_t *dip, *pdip;
7756 	int circ1 = 0;
7757 	char *devname;
7758 
7759 	con_log(CL_ANN1, (CE_NOTE, "mrsas_issue_evt_taskq: called for"
7760 	    " tgt %d lun %d event %d",
7761 	    mrevt->tgt, mrevt->lun, mrevt->event));
7762 
7763 	if (mrevt->tgt < MRDRV_MAX_LD && mrevt->lun == 0) {
7764 		mutex_enter(&instance->config_dev_mtx);
7765 		dip = instance->mr_ld_list[mrevt->tgt].dip;
7766 		mutex_exit(&instance->config_dev_mtx);
7767 #ifdef PDSUPPORT
7768 	} else {
7769 		mutex_enter(&instance->config_dev_mtx);
7770 		dip = instance->mr_tbolt_pd_list[mrevt->tgt].dip;
7771 		mutex_exit(&instance->config_dev_mtx);
7772 #endif
7773 	}
7774 
7775 
7776 	ndi_devi_enter(instance->dip, &circ1);
7777 	switch (mrevt->event) {
7778 	case MRSAS_EVT_CONFIG_TGT:
7779 		if (dip == NULL) {
7780 
7781 			if (mrevt->lun == 0) {
7782 				(void) mrsas_config_ld(instance, mrevt->tgt,
7783 				    0, NULL);
7784 #ifdef PDSUPPORT
7785 			} else if (instance->tbolt) {
7786 				(void) mrsas_tbolt_config_pd(instance,
7787 				    mrevt->tgt,
7788 				    1, NULL);
7789 #endif
7790 			}
7791 			con_log(CL_ANN1, (CE_NOTE,
7792 			    "mr_sas: EVT_CONFIG_TGT called:"
7793 			    " for tgt %d lun %d event %d",
7794 			    mrevt->tgt, mrevt->lun, mrevt->event));
7795 
7796 		} else {
7797 			con_log(CL_ANN1, (CE_NOTE,
7798 			    "mr_sas: EVT_CONFIG_TGT dip != NULL:"
7799 			    " for tgt %d lun %d event %d",
7800 			    mrevt->tgt, mrevt->lun, mrevt->event));
7801 		}
7802 		break;
7803 	case MRSAS_EVT_UNCONFIG_TGT:
7804 		if (dip) {
7805 			if (i_ddi_devi_attached(dip)) {
7806 
7807 				pdip = ddi_get_parent(dip);
7808 
7809 				devname = kmem_zalloc(MAXNAMELEN + 1, KM_SLEEP);
7810 				(void) ddi_deviname(dip, devname);
7811 
7812 				(void) devfs_clean(pdip, devname + 1,
7813 				    DV_CLEAN_FORCE);
7814 				kmem_free(devname, MAXNAMELEN + 1);
7815 			}
7816 			(void) ndi_devi_offline(dip, NDI_DEVI_REMOVE);
7817 			con_log(CL_ANN1, (CE_NOTE,
7818 			    "mr_sas: EVT_UNCONFIG_TGT called:"
7819 			    " for tgt %d lun %d event %d",
7820 			    mrevt->tgt, mrevt->lun, mrevt->event));
7821 		} else {
7822 			con_log(CL_ANN1, (CE_NOTE,
7823 			    "mr_sas: EVT_UNCONFIG_TGT dip == NULL:"
7824 			    " for tgt %d lun %d event %d",
7825 			    mrevt->tgt, mrevt->lun, mrevt->event));
7826 		}
7827 		break;
7828 	}
7829 	kmem_free(mrevt, sizeof (struct mrsas_eventinfo));
7830 	ndi_devi_exit(instance->dip, circ1);
7831 }
7832 
7833 
7834 int
7835 mrsas_mode_sense_build(struct scsi_pkt *pkt)
7836 {
7837 	union scsi_cdb		*cdbp;
7838 	uint16_t		page_code;
7839 	struct scsa_cmd		*acmd;
7840 	struct buf		*bp;
7841 	struct mode_header	*modehdrp;
7842 
7843 	cdbp = (void *)pkt->pkt_cdbp;
7844 	page_code = cdbp->cdb_un.sg.scsi[0];
7845 	acmd = PKT2CMD(pkt);
7846 	bp = acmd->cmd_buf;
7847 	if ((!bp) && bp->b_un.b_addr && bp->b_bcount && acmd->cmd_dmacount) {
7848 		con_log(CL_ANN1, (CE_WARN, "Failing MODESENSE Command"));
7849 		/* ADD pkt statistics as Command failed. */
7850 		return (NULL);
7851 	}
7852 
7853 	bp_mapin(bp);
7854 	bzero(bp->b_un.b_addr, bp->b_bcount);
7855 
7856 	switch (page_code) {
7857 		case 0x3: {
7858 			struct mode_format *page3p = NULL;
7859 			modehdrp = (struct mode_header *)(bp->b_un.b_addr);
7860 			modehdrp->bdesc_length = MODE_BLK_DESC_LENGTH;
7861 
7862 			page3p = (void *)((caddr_t)modehdrp +
7863 			    MODE_HEADER_LENGTH + MODE_BLK_DESC_LENGTH);
7864 			page3p->mode_page.code = 0x3;
7865 			page3p->mode_page.length =
7866 			    (uchar_t)(sizeof (struct mode_format));
7867 			page3p->data_bytes_sect = 512;
7868 			page3p->sect_track = 63;
7869 			break;
7870 		}
7871 		case 0x4: {
7872 			struct mode_geometry *page4p = NULL;
7873 			modehdrp = (struct mode_header *)(bp->b_un.b_addr);
7874 			modehdrp->bdesc_length = MODE_BLK_DESC_LENGTH;
7875 
7876 			page4p = (void *)((caddr_t)modehdrp +
7877 			    MODE_HEADER_LENGTH + MODE_BLK_DESC_LENGTH);
7878 			page4p->mode_page.code = 0x4;
7879 			page4p->mode_page.length =
7880 			    (uchar_t)(sizeof (struct mode_geometry));
7881 			page4p->heads = 255;
7882 			page4p->rpm = 10000;
7883 			break;
7884 		}
7885 		default:
7886 			break;
7887 	}
7888 	return (NULL);
7889 }
7890