xref: /titanic_51/usr/src/uts/common/io/mr_sas/mr_sas.c (revision a1ed883a3c2acc53bbb9a171ef07aeb8eaf78736)
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 2013 Nexenta Systems, Inc. All rights reserved.
48  * Copyright 2015 Citrus IT Limited. All rights reserved.
49  * Copyright 2015 Garrett D'Amore <garrett@damore.org>
50  */
51 
52 #include <sys/types.h>
53 #include <sys/param.h>
54 #include <sys/file.h>
55 #include <sys/errno.h>
56 #include <sys/open.h>
57 #include <sys/cred.h>
58 #include <sys/modctl.h>
59 #include <sys/conf.h>
60 #include <sys/devops.h>
61 #include <sys/cmn_err.h>
62 #include <sys/kmem.h>
63 #include <sys/stat.h>
64 #include <sys/mkdev.h>
65 #include <sys/pci.h>
66 #include <sys/scsi/scsi.h>
67 #include <sys/ddi.h>
68 #include <sys/sunddi.h>
69 #include <sys/atomic.h>
70 #include <sys/signal.h>
71 #include <sys/byteorder.h>
72 #include <sys/sdt.h>
73 #include <sys/fs/dv_node.h>	/* devfs_clean */
74 
75 #include "mr_sas.h"
76 
77 /*
78  * FMA header files
79  */
80 #include <sys/ddifm.h>
81 #include <sys/fm/protocol.h>
82 #include <sys/fm/util.h>
83 #include <sys/fm/io/ddi.h>
84 
85 /* Macros to help Skinny and stock 2108/MFI live together. */
86 #define	WR_IB_PICK_QPORT(addr, instance) \
87 	if ((instance)->skinny) { \
88 		WR_IB_LOW_QPORT((addr), (instance)); \
89 		WR_IB_HIGH_QPORT(0, (instance)); \
90 	} else { \
91 		WR_IB_QPORT((addr), (instance)); \
92 	}
93 
94 /*
95  * Local static data
96  */
97 static void	*mrsas_state = NULL;
98 static volatile boolean_t	mrsas_relaxed_ordering = B_TRUE;
99 volatile int	debug_level_g = CL_NONE;
100 static volatile int	msi_enable = 1;
101 static volatile int 	ctio_enable = 1;
102 
103 /* Default Timeout value to issue online controller reset */
104 volatile int  debug_timeout_g  = 0xF0;		/* 0xB4; */
105 /* Simulate consecutive firmware fault */
106 static volatile int  debug_fw_faults_after_ocr_g  = 0;
107 #ifdef OCRDEBUG
108 /* Simulate three consecutive timeout for an IO */
109 static volatile int  debug_consecutive_timeout_after_ocr_g  = 0;
110 #endif
111 
112 #pragma weak scsi_hba_open
113 #pragma weak scsi_hba_close
114 #pragma weak scsi_hba_ioctl
115 
116 /* Local static prototypes. */
117 static int	mrsas_getinfo(dev_info_t *, ddi_info_cmd_t,  void *, void **);
118 static int	mrsas_attach(dev_info_t *, ddi_attach_cmd_t);
119 #ifdef __sparc
120 static int	mrsas_reset(dev_info_t *, ddi_reset_cmd_t);
121 #else
122 static int	mrsas_quiesce(dev_info_t *);
123 #endif
124 static int	mrsas_detach(dev_info_t *, ddi_detach_cmd_t);
125 static int	mrsas_open(dev_t *, int, int, cred_t *);
126 static int	mrsas_close(dev_t, int, int, cred_t *);
127 static int	mrsas_ioctl(dev_t, int, intptr_t, int, cred_t *, int *);
128 
129 static int	mrsas_tran_tgt_init(dev_info_t *, dev_info_t *,
130 		    scsi_hba_tran_t *, struct scsi_device *);
131 static struct scsi_pkt *mrsas_tran_init_pkt(struct scsi_address *, register
132 		    struct scsi_pkt *, struct buf *, int, int, int, int,
133 		    int (*)(), caddr_t);
134 static int	mrsas_tran_start(struct scsi_address *,
135 		    register struct scsi_pkt *);
136 static int	mrsas_tran_abort(struct scsi_address *, struct scsi_pkt *);
137 static int	mrsas_tran_reset(struct scsi_address *, int);
138 static int	mrsas_tran_getcap(struct scsi_address *, char *, int);
139 static int	mrsas_tran_setcap(struct scsi_address *, char *, int, int);
140 static void	mrsas_tran_destroy_pkt(struct scsi_address *,
141 		    struct scsi_pkt *);
142 static void	mrsas_tran_dmafree(struct scsi_address *, struct scsi_pkt *);
143 static void	mrsas_tran_sync_pkt(struct scsi_address *, struct scsi_pkt *);
144 static int	mrsas_tran_quiesce(dev_info_t *dip);
145 static int	mrsas_tran_unquiesce(dev_info_t *dip);
146 static uint_t	mrsas_isr();
147 static uint_t	mrsas_softintr();
148 static void	mrsas_undo_resources(dev_info_t *, struct mrsas_instance *);
149 
150 static void	free_space_for_mfi(struct mrsas_instance *);
151 static uint32_t	read_fw_status_reg_ppc(struct mrsas_instance *);
152 static void	issue_cmd_ppc(struct mrsas_cmd *, struct mrsas_instance *);
153 static int	issue_cmd_in_poll_mode_ppc(struct mrsas_instance *,
154 		    struct mrsas_cmd *);
155 static int	issue_cmd_in_sync_mode_ppc(struct mrsas_instance *,
156 		    struct mrsas_cmd *);
157 static void	enable_intr_ppc(struct mrsas_instance *);
158 static void	disable_intr_ppc(struct mrsas_instance *);
159 static int	intr_ack_ppc(struct mrsas_instance *);
160 static void	flush_cache(struct mrsas_instance *instance);
161 void	display_scsi_inquiry(caddr_t);
162 static int	start_mfi_aen(struct mrsas_instance *instance);
163 static int	handle_drv_ioctl(struct mrsas_instance *instance,
164 		    struct mrsas_ioctl *ioctl, int mode);
165 static int	handle_mfi_ioctl(struct mrsas_instance *instance,
166 		    struct mrsas_ioctl *ioctl, int mode);
167 static int	handle_mfi_aen(struct mrsas_instance *instance,
168 		    struct mrsas_aen *aen);
169 static struct mrsas_cmd *build_cmd(struct mrsas_instance *,
170     struct scsi_address *, struct scsi_pkt *, uchar_t *);
171 static int	alloc_additional_dma_buffer(struct mrsas_instance *);
172 static void	complete_cmd_in_sync_mode(struct mrsas_instance *,
173 		struct mrsas_cmd *);
174 static int	mrsas_kill_adapter(struct mrsas_instance *);
175 static int	mrsas_issue_init_mfi(struct mrsas_instance *);
176 static int	mrsas_reset_ppc(struct mrsas_instance *);
177 static uint32_t mrsas_initiate_ocr_if_fw_is_faulty(struct mrsas_instance *);
178 static int	wait_for_outstanding(struct mrsas_instance *instance);
179 static int	register_mfi_aen(struct mrsas_instance *instance,
180 		    uint32_t seq_num, uint32_t class_locale_word);
181 static int	issue_mfi_pthru(struct mrsas_instance *instance, struct
182 		    mrsas_ioctl *ioctl, struct mrsas_cmd *cmd, int mode);
183 static int	issue_mfi_dcmd(struct mrsas_instance *instance, struct
184 		    mrsas_ioctl *ioctl, struct mrsas_cmd *cmd, int mode);
185 static int	issue_mfi_smp(struct mrsas_instance *instance, struct
186 		    mrsas_ioctl *ioctl, struct mrsas_cmd *cmd, int mode);
187 static int	issue_mfi_stp(struct mrsas_instance *instance, struct
188 		    mrsas_ioctl *ioctl, struct mrsas_cmd *cmd, int mode);
189 static int	abort_aen_cmd(struct mrsas_instance *instance,
190 		    struct mrsas_cmd *cmd_to_abort);
191 
192 static void	mrsas_rem_intrs(struct mrsas_instance *instance);
193 static int	mrsas_add_intrs(struct mrsas_instance *instance, int intr_type);
194 
195 static void	mrsas_tran_tgt_free(dev_info_t *, dev_info_t *,
196 		    scsi_hba_tran_t *, struct scsi_device *);
197 static int	mrsas_tran_bus_config(dev_info_t *, uint_t,
198 		    ddi_bus_config_op_t, void *, dev_info_t **);
199 static int	mrsas_parse_devname(char *, int *, int *);
200 static int	mrsas_config_all_devices(struct mrsas_instance *);
201 static int	mrsas_config_ld(struct mrsas_instance *, uint16_t,
202 			uint8_t, dev_info_t **);
203 static int	mrsas_name_node(dev_info_t *, char *, int);
204 static void	mrsas_issue_evt_taskq(struct mrsas_eventinfo *);
205 static void	free_additional_dma_buffer(struct mrsas_instance *);
206 static void io_timeout_checker(void *);
207 static void mrsas_fm_init(struct mrsas_instance *);
208 static void mrsas_fm_fini(struct mrsas_instance *);
209 
210 static struct mrsas_function_template mrsas_function_template_ppc = {
211 	.read_fw_status_reg = read_fw_status_reg_ppc,
212 	.issue_cmd = issue_cmd_ppc,
213 	.issue_cmd_in_sync_mode = issue_cmd_in_sync_mode_ppc,
214 	.issue_cmd_in_poll_mode = issue_cmd_in_poll_mode_ppc,
215 	.enable_intr = enable_intr_ppc,
216 	.disable_intr = disable_intr_ppc,
217 	.intr_ack = intr_ack_ppc,
218 	.init_adapter = mrsas_init_adapter_ppc
219 };
220 
221 
222 static struct mrsas_function_template mrsas_function_template_fusion = {
223 	.read_fw_status_reg = tbolt_read_fw_status_reg,
224 	.issue_cmd = tbolt_issue_cmd,
225 	.issue_cmd_in_sync_mode = tbolt_issue_cmd_in_sync_mode,
226 	.issue_cmd_in_poll_mode = tbolt_issue_cmd_in_poll_mode,
227 	.enable_intr = tbolt_enable_intr,
228 	.disable_intr = tbolt_disable_intr,
229 	.intr_ack = tbolt_intr_ack,
230 	.init_adapter = mrsas_init_adapter_tbolt
231 };
232 
233 
234 ddi_dma_attr_t mrsas_generic_dma_attr = {
235 	DMA_ATTR_V0,		/* dma_attr_version */
236 	0,			/* low DMA address range */
237 	0xFFFFFFFFU,		/* high DMA address range */
238 	0xFFFFFFFFU,		/* DMA counter register	 */
239 	8,			/* DMA address alignment */
240 	0x07,			/* DMA burstsizes  */
241 	1,			/* min DMA size */
242 	0xFFFFFFFFU,		/* max DMA size */
243 	0xFFFFFFFFU,		/* segment boundary */
244 	MRSAS_MAX_SGE_CNT,	/* dma_attr_sglen */
245 	512,			/* granularity of device */
246 	0			/* bus specific DMA flags */
247 };
248 
249 int32_t mrsas_max_cap_maxxfer = 0x1000000;
250 
251 /*
252  * Fix for: Thunderbolt controller IO timeout when IO write size is 1MEG,
253  * Limit size to 256K
254  */
255 uint32_t mrsas_tbolt_max_cap_maxxfer = (512 * 512);
256 
257 /*
258  * cb_ops contains base level routines
259  */
260 static struct cb_ops mrsas_cb_ops = {
261 	mrsas_open,		/* open */
262 	mrsas_close,		/* close */
263 	nodev,			/* strategy */
264 	nodev,			/* print */
265 	nodev,			/* dump */
266 	nodev,			/* read */
267 	nodev,			/* write */
268 	mrsas_ioctl,		/* ioctl */
269 	nodev,			/* devmap */
270 	nodev,			/* mmap */
271 	nodev,			/* segmap */
272 	nochpoll,		/* poll */
273 	nodev,			/* cb_prop_op */
274 	0,			/* streamtab  */
275 	D_NEW | D_HOTPLUG,	/* cb_flag */
276 	CB_REV,			/* cb_rev */
277 	nodev,			/* cb_aread */
278 	nodev			/* cb_awrite */
279 };
280 
281 /*
282  * dev_ops contains configuration routines
283  */
284 static struct dev_ops mrsas_ops = {
285 	DEVO_REV,		/* rev, */
286 	0,			/* refcnt */
287 	mrsas_getinfo,		/* getinfo */
288 	nulldev,		/* identify */
289 	nulldev,		/* probe */
290 	mrsas_attach,		/* attach */
291 	mrsas_detach,		/* detach */
292 #ifdef	__sparc
293 	mrsas_reset,		/* reset */
294 #else	/* __sparc */
295 	nodev,
296 #endif	/* __sparc */
297 	&mrsas_cb_ops,		/* char/block ops */
298 	NULL,			/* bus ops */
299 	NULL,			/* power */
300 #ifdef __sparc
301 	ddi_quiesce_not_needed
302 #else	/* __sparc */
303 	mrsas_quiesce	/* quiesce */
304 #endif	/* __sparc */
305 };
306 
307 static struct modldrv modldrv = {
308 	&mod_driverops,		/* module type - driver */
309 	MRSAS_VERSION,
310 	&mrsas_ops,		/* driver ops */
311 };
312 
313 static struct modlinkage modlinkage = {
314 	MODREV_1,	/* ml_rev - must be MODREV_1 */
315 	&modldrv,	/* ml_linkage */
316 	NULL		/* end of driver linkage */
317 };
318 
319 static struct ddi_device_acc_attr endian_attr = {
320 	DDI_DEVICE_ATTR_V1,
321 	DDI_STRUCTURE_LE_ACC,
322 	DDI_STRICTORDER_ACC,
323 	DDI_DEFAULT_ACC
324 };
325 
326 /* Use the LSI Fast Path for the 2208 (tbolt) commands. */
327 unsigned int enable_fp = 1;
328 
329 
330 /*
331  * ************************************************************************** *
332  *									      *
333  *	   common entry points - for loadable kernel modules		      *
334  *									      *
335  * ************************************************************************** *
336  */
337 
338 /*
339  * _init - initialize a loadable module
340  * @void
341  *
342  * The driver should perform any one-time resource allocation or data
343  * initialization during driver loading in _init(). For example, the driver
344  * should initialize any mutexes global to the driver in this routine.
345  * The driver should not, however, use _init() to allocate or initialize
346  * anything that has to do with a particular instance of the device.
347  * Per-instance initialization must be done in attach().
348  */
349 int
350 _init(void)
351 {
352 	int ret;
353 
354 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
355 
356 	ret = ddi_soft_state_init(&mrsas_state,
357 	    sizeof (struct mrsas_instance), 0);
358 
359 	if (ret != DDI_SUCCESS) {
360 		cmn_err(CE_WARN, "mr_sas: could not init state");
361 		return (ret);
362 	}
363 
364 	if ((ret = scsi_hba_init(&modlinkage)) != DDI_SUCCESS) {
365 		cmn_err(CE_WARN, "mr_sas: could not init scsi hba");
366 		ddi_soft_state_fini(&mrsas_state);
367 		return (ret);
368 	}
369 
370 	ret = mod_install(&modlinkage);
371 
372 	if (ret != DDI_SUCCESS) {
373 		cmn_err(CE_WARN, "mr_sas: mod_install failed");
374 		scsi_hba_fini(&modlinkage);
375 		ddi_soft_state_fini(&mrsas_state);
376 	}
377 
378 	return (ret);
379 }
380 
381 /*
382  * _info - returns information about a loadable module.
383  * @void
384  *
385  * _info() is called to return module information. This is a typical entry
386  * point that does predefined role. It simply calls mod_info().
387  */
388 int
389 _info(struct modinfo *modinfop)
390 {
391 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
392 
393 	return (mod_info(&modlinkage, modinfop));
394 }
395 
396 /*
397  * _fini - prepare a loadable module for unloading
398  * @void
399  *
400  * In _fini(), the driver should release any resources that were allocated in
401  * _init(). The driver must remove itself from the system module list.
402  */
403 int
404 _fini(void)
405 {
406 	int ret;
407 
408 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
409 
410 	if ((ret = mod_remove(&modlinkage)) != DDI_SUCCESS) {
411 		con_log(CL_ANN1,
412 		    (CE_WARN, "_fini: mod_remove() failed, error 0x%X", ret));
413 		return (ret);
414 	}
415 
416 	scsi_hba_fini(&modlinkage);
417 	con_log(CL_DLEVEL1, (CE_NOTE, "_fini: scsi_hba_fini() done."));
418 
419 	ddi_soft_state_fini(&mrsas_state);
420 	con_log(CL_DLEVEL1, (CE_NOTE, "_fini: ddi_soft_state_fini() done."));
421 
422 	return (ret);
423 }
424 
425 
426 /*
427  * ************************************************************************** *
428  *									      *
429  *		 common entry points - for autoconfiguration		      *
430  *									      *
431  * ************************************************************************** *
432  */
433 /*
434  * attach - adds a device to the system as part of initialization
435  * @dip:
436  * @cmd:
437  *
438  * The kernel calls a driver's attach() entry point to attach an instance of
439  * a device (for MegaRAID, it is instance of a controller) or to resume
440  * operation for an instance of a device that has been suspended or has been
441  * shut down by the power management framework
442  * The attach() entry point typically includes the following types of
443  * processing:
444  * - allocate a soft-state structure for the device instance (for MegaRAID,
445  *   controller instance)
446  * - initialize per-instance mutexes
447  * - initialize condition variables
448  * - register the device's interrupts (for MegaRAID, controller's interrupts)
449  * - map the registers and memory of the device instance (for MegaRAID,
450  *   controller instance)
451  * - create minor device nodes for the device instance (for MegaRAID,
452  *   controller instance)
453  * - report that the device instance (for MegaRAID, controller instance) has
454  *   attached
455  */
456 static int
457 mrsas_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
458 {
459 	int		instance_no;
460 	int		nregs;
461 	int		i = 0;
462 	uint8_t		irq;
463 	uint16_t	vendor_id;
464 	uint16_t	device_id;
465 	uint16_t	subsysvid;
466 	uint16_t	subsysid;
467 	uint16_t	command;
468 	off_t		reglength = 0;
469 	int		intr_types = 0;
470 	char		*data;
471 
472 	scsi_hba_tran_t		*tran;
473 	ddi_dma_attr_t	tran_dma_attr;
474 	struct mrsas_instance	*instance;
475 
476 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
477 
478 	/* CONSTCOND */
479 	ASSERT(NO_COMPETING_THREADS);
480 
481 	instance_no = ddi_get_instance(dip);
482 
483 	/*
484 	 * check to see whether this device is in a DMA-capable slot.
485 	 */
486 	if (ddi_slaveonly(dip) == DDI_SUCCESS) {
487 		dev_err(dip, CE_WARN, "Device in slave-only slot, unused");
488 		return (DDI_FAILURE);
489 	}
490 
491 	switch (cmd) {
492 	case DDI_ATTACH:
493 		/* allocate the soft state for the instance */
494 		if (ddi_soft_state_zalloc(mrsas_state, instance_no)
495 		    != DDI_SUCCESS) {
496 			dev_err(dip, CE_WARN, "Failed to allocate soft state");
497 			return (DDI_FAILURE);
498 		}
499 
500 		instance = (struct mrsas_instance *)ddi_get_soft_state
501 		    (mrsas_state, instance_no);
502 
503 		if (instance == NULL) {
504 			dev_err(dip, CE_WARN, "Bad soft state");
505 			ddi_soft_state_free(mrsas_state, instance_no);
506 			return (DDI_FAILURE);
507 		}
508 
509 		instance->unroll.softs	= 1;
510 
511 		/* Setup the PCI configuration space handles */
512 		if (pci_config_setup(dip, &instance->pci_handle) !=
513 		    DDI_SUCCESS) {
514 			dev_err(dip, CE_WARN, "pci config setup failed");
515 
516 			ddi_soft_state_free(mrsas_state, instance_no);
517 			return (DDI_FAILURE);
518 		}
519 
520 		if (ddi_dev_nregs(dip, &nregs) != DDI_SUCCESS) {
521 			dev_err(dip, CE_WARN, "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 		dev_err(dip, CE_CONT,
545 		    "?0x%x:0x%x 0x%x:0x%x, irq:%d drv-ver:%s\n",
546 		    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 		case PCI_DEVICE_ID_LSI_FURY:
571 			dev_err(dip, CE_CONT, "?TBOLT device detected\n");
572 
573 			instance->func_ptr =
574 			    &mrsas_function_template_fusion;
575 			instance->tbolt = 1;
576 			break;
577 
578 		case PCI_DEVICE_ID_LSI_SKINNY:
579 		case PCI_DEVICE_ID_LSI_SKINNY_NEW:
580 			/*
581 			 * FALLTHRU to PPC-style functions, but mark this
582 			 * instance as Skinny, because the register set is
583 			 * slightly different (See WR_IB_PICK_QPORT), and
584 			 * certain other features are available to a Skinny
585 			 * HBA.
586 			 */
587 			instance->skinny = 1;
588 			/* FALLTHRU */
589 
590 		case PCI_DEVICE_ID_LSI_2108VDE:
591 		case PCI_DEVICE_ID_LSI_2108V:
592 			dev_err(dip, CE_CONT,
593 			    "?2108 Liberator device detected\n");
594 
595 			instance->func_ptr =
596 			    &mrsas_function_template_ppc;
597 			break;
598 
599 		default:
600 			dev_err(dip, CE_WARN, "Invalid device detected");
601 
602 			pci_config_teardown(&instance->pci_handle);
603 			ddi_soft_state_free(mrsas_state, instance_no);
604 			return (DDI_FAILURE);
605 		}
606 
607 		instance->baseaddress = pci_config_get32(
608 		    instance->pci_handle, PCI_CONF_BASE0);
609 		instance->baseaddress &= 0x0fffc;
610 
611 		instance->dip		= dip;
612 		instance->vendor_id	= vendor_id;
613 		instance->device_id	= device_id;
614 		instance->subsysvid	= subsysvid;
615 		instance->subsysid	= subsysid;
616 		instance->instance	= instance_no;
617 
618 		/* Initialize FMA */
619 		instance->fm_capabilities = ddi_prop_get_int(
620 		    DDI_DEV_T_ANY, instance->dip, DDI_PROP_DONTPASS,
621 		    "fm-capable", DDI_FM_EREPORT_CAPABLE |
622 		    DDI_FM_ACCCHK_CAPABLE | DDI_FM_DMACHK_CAPABLE
623 		    | DDI_FM_ERRCB_CAPABLE);
624 
625 		mrsas_fm_init(instance);
626 
627 		/* Setup register map */
628 		if ((ddi_dev_regsize(instance->dip,
629 		    REGISTER_SET_IO_2108, &reglength) != DDI_SUCCESS) ||
630 		    reglength < MINIMUM_MFI_MEM_SZ) {
631 			goto fail_attach;
632 		}
633 		if (reglength > DEFAULT_MFI_MEM_SZ) {
634 			reglength = DEFAULT_MFI_MEM_SZ;
635 			con_log(CL_DLEVEL1, (CE_NOTE,
636 			    "mr_sas: register length to map is 0x%lx bytes",
637 			    reglength));
638 		}
639 		if (ddi_regs_map_setup(instance->dip,
640 		    REGISTER_SET_IO_2108, &instance->regmap, 0,
641 		    reglength, &endian_attr, &instance->regmap_handle)
642 		    != DDI_SUCCESS) {
643 			dev_err(dip, CE_WARN, "couldn't map control registers");
644 			goto fail_attach;
645 		}
646 
647 		instance->unroll.regs = 1;
648 
649 		/*
650 		 * Disable Interrupt Now.
651 		 * Setup Software interrupt
652 		 */
653 		instance->func_ptr->disable_intr(instance);
654 
655 		if (ddi_prop_lookup_string(DDI_DEV_T_ANY, dip, 0,
656 		    "mrsas-enable-msi", &data) == DDI_SUCCESS) {
657 			if (strncmp(data, "no", 3) == 0) {
658 				msi_enable = 0;
659 				con_log(CL_ANN1, (CE_WARN,
660 				    "msi_enable = %d disabled", msi_enable));
661 			}
662 			ddi_prop_free(data);
663 		}
664 
665 		dev_err(dip, CE_CONT, "?msi_enable = %d\n", msi_enable);
666 
667 		if (ddi_prop_lookup_string(DDI_DEV_T_ANY, dip, 0,
668 		    "mrsas-enable-fp", &data) == DDI_SUCCESS) {
669 			if (strncmp(data, "no", 3) == 0) {
670 				enable_fp = 0;
671 				dev_err(dip, CE_NOTE,
672 				    "enable_fp = %d, Fast-Path disabled.\n",
673 				    enable_fp);
674 			}
675 
676 			ddi_prop_free(data);
677 		}
678 
679 		dev_err(dip, CE_CONT, "?enable_fp = %d\n", enable_fp);
680 
681 		/* Check for all supported interrupt types */
682 		if (ddi_intr_get_supported_types(
683 		    dip, &intr_types) != DDI_SUCCESS) {
684 			dev_err(dip, CE_WARN,
685 			    "ddi_intr_get_supported_types() failed");
686 			goto fail_attach;
687 		}
688 
689 		con_log(CL_DLEVEL1, (CE_NOTE,
690 		    "ddi_intr_get_supported_types() ret: 0x%x", intr_types));
691 
692 		/* Initialize and Setup Interrupt handler */
693 		if (msi_enable && (intr_types & DDI_INTR_TYPE_MSIX)) {
694 			if (mrsas_add_intrs(instance, DDI_INTR_TYPE_MSIX) !=
695 			    DDI_SUCCESS) {
696 				dev_err(dip, CE_WARN,
697 				    "MSIX interrupt query failed");
698 				goto fail_attach;
699 			}
700 			instance->intr_type = DDI_INTR_TYPE_MSIX;
701 		} else if (msi_enable && (intr_types & DDI_INTR_TYPE_MSI)) {
702 			if (mrsas_add_intrs(instance, DDI_INTR_TYPE_MSI) !=
703 			    DDI_SUCCESS) {
704 				dev_err(dip, CE_WARN,
705 				    "MSI interrupt query failed");
706 				goto fail_attach;
707 			}
708 			instance->intr_type = DDI_INTR_TYPE_MSI;
709 		} else if (intr_types & DDI_INTR_TYPE_FIXED) {
710 			msi_enable = 0;
711 			if (mrsas_add_intrs(instance, DDI_INTR_TYPE_FIXED) !=
712 			    DDI_SUCCESS) {
713 				dev_err(dip, CE_WARN,
714 				    "FIXED interrupt query failed");
715 				goto fail_attach;
716 			}
717 			instance->intr_type = DDI_INTR_TYPE_FIXED;
718 		} else {
719 			dev_err(dip, CE_WARN, "Device cannot "
720 			    "suppport either FIXED or MSI/X "
721 			    "interrupts");
722 			goto fail_attach;
723 		}
724 
725 		instance->unroll.intr = 1;
726 
727 		if (ddi_prop_lookup_string(DDI_DEV_T_ANY, dip, 0,
728 		    "mrsas-enable-ctio", &data) == DDI_SUCCESS) {
729 			if (strncmp(data, "no", 3) == 0) {
730 				ctio_enable = 0;
731 				con_log(CL_ANN1, (CE_WARN,
732 				    "ctio_enable = %d disabled", ctio_enable));
733 			}
734 			ddi_prop_free(data);
735 		}
736 
737 		dev_err(dip, CE_CONT, "?ctio_enable = %d\n", ctio_enable);
738 
739 		/* setup the mfi based low level driver */
740 		if (mrsas_init_adapter(instance) != DDI_SUCCESS) {
741 			dev_err(dip, CE_WARN,
742 			    "could not initialize the low level driver");
743 
744 			goto fail_attach;
745 		}
746 
747 		/* Initialize all Mutex */
748 		INIT_LIST_HEAD(&instance->completed_pool_list);
749 		mutex_init(&instance->completed_pool_mtx, NULL,
750 		    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
751 
752 		mutex_init(&instance->sync_map_mtx, NULL,
753 		    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
754 
755 		mutex_init(&instance->app_cmd_pool_mtx, NULL,
756 		    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
757 
758 		mutex_init(&instance->config_dev_mtx, NULL,
759 		    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
760 
761 		mutex_init(&instance->cmd_pend_mtx, NULL,
762 		    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
763 
764 		mutex_init(&instance->ocr_flags_mtx, NULL,
765 		    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
766 
767 		mutex_init(&instance->int_cmd_mtx, NULL,
768 		    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
769 		cv_init(&instance->int_cmd_cv, NULL, CV_DRIVER, NULL);
770 
771 		mutex_init(&instance->cmd_pool_mtx, NULL,
772 		    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
773 
774 		mutex_init(&instance->reg_write_mtx, NULL,
775 		    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
776 
777 		if (instance->tbolt) {
778 			mutex_init(&instance->cmd_app_pool_mtx, NULL,
779 			    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
780 
781 			mutex_init(&instance->chip_mtx, NULL,
782 			    MUTEX_DRIVER, DDI_INTR_PRI(instance->intr_pri));
783 
784 		}
785 
786 		instance->unroll.mutexs = 1;
787 
788 		instance->timeout_id = (timeout_id_t)-1;
789 
790 		/* Register our soft-isr for highlevel interrupts. */
791 		instance->isr_level = instance->intr_pri;
792 		if (!(instance->tbolt)) {
793 			if (instance->isr_level == HIGH_LEVEL_INTR) {
794 				if (ddi_add_softintr(dip,
795 				    DDI_SOFTINT_HIGH,
796 				    &instance->soft_intr_id, NULL, NULL,
797 				    mrsas_softintr, (caddr_t)instance) !=
798 				    DDI_SUCCESS) {
799 					dev_err(dip, CE_WARN,
800 					    "Software ISR did not register");
801 
802 					goto fail_attach;
803 				}
804 
805 				instance->unroll.soft_isr = 1;
806 
807 			}
808 		}
809 
810 		instance->softint_running = 0;
811 
812 		/* Allocate a transport structure */
813 		tran = scsi_hba_tran_alloc(dip, SCSI_HBA_CANSLEEP);
814 
815 		if (tran == NULL) {
816 			dev_err(dip, CE_WARN,
817 			    "scsi_hba_tran_alloc failed");
818 			goto fail_attach;
819 		}
820 
821 		instance->tran = tran;
822 		instance->unroll.tran = 1;
823 
824 		tran->tran_hba_private	= instance;
825 		tran->tran_tgt_init	= mrsas_tran_tgt_init;
826 		tran->tran_tgt_probe	= scsi_hba_probe;
827 		tran->tran_tgt_free	= mrsas_tran_tgt_free;
828 		tran->tran_init_pkt	= mrsas_tran_init_pkt;
829 		if (instance->tbolt)
830 			tran->tran_start = mrsas_tbolt_tran_start;
831 		else
832 			tran->tran_start = mrsas_tran_start;
833 		tran->tran_abort	= mrsas_tran_abort;
834 		tran->tran_reset	= mrsas_tran_reset;
835 		tran->tran_getcap	= mrsas_tran_getcap;
836 		tran->tran_setcap	= mrsas_tran_setcap;
837 		tran->tran_destroy_pkt	= mrsas_tran_destroy_pkt;
838 		tran->tran_dmafree	= mrsas_tran_dmafree;
839 		tran->tran_sync_pkt	= mrsas_tran_sync_pkt;
840 		tran->tran_quiesce	= mrsas_tran_quiesce;
841 		tran->tran_unquiesce	= mrsas_tran_unquiesce;
842 		tran->tran_bus_config	= mrsas_tran_bus_config;
843 
844 		if (mrsas_relaxed_ordering)
845 			mrsas_generic_dma_attr.dma_attr_flags |=
846 			    DDI_DMA_RELAXED_ORDERING;
847 
848 
849 		tran_dma_attr = mrsas_generic_dma_attr;
850 		tran_dma_attr.dma_attr_sgllen = instance->max_num_sge;
851 
852 		/* Attach this instance of the hba */
853 		if (scsi_hba_attach_setup(dip, &tran_dma_attr, tran, 0)
854 		    != DDI_SUCCESS) {
855 			dev_err(dip, CE_WARN,
856 			    "scsi_hba_attach failed");
857 
858 			goto fail_attach;
859 		}
860 		instance->unroll.tranSetup = 1;
861 		con_log(CL_ANN1,
862 		    (CE_CONT, "scsi_hba_attach_setup()	done."));
863 
864 		/* create devctl node for cfgadm command */
865 		if (ddi_create_minor_node(dip, "devctl",
866 		    S_IFCHR, INST2DEVCTL(instance_no),
867 		    DDI_NT_SCSI_NEXUS, 0) == DDI_FAILURE) {
868 			dev_err(dip, CE_WARN, "failed to create devctl node.");
869 
870 			goto fail_attach;
871 		}
872 
873 		instance->unroll.devctl = 1;
874 
875 		/* create scsi node for cfgadm command */
876 		if (ddi_create_minor_node(dip, "scsi", S_IFCHR,
877 		    INST2SCSI(instance_no), DDI_NT_SCSI_ATTACHMENT_POINT, 0) ==
878 		    DDI_FAILURE) {
879 			dev_err(dip, CE_WARN, "failed to create scsi node.");
880 
881 			goto fail_attach;
882 		}
883 
884 		instance->unroll.scsictl = 1;
885 
886 		(void) sprintf(instance->iocnode, "%d:lsirdctl", instance_no);
887 
888 		/*
889 		 * Create a node for applications
890 		 * for issuing ioctl to the driver.
891 		 */
892 		if (ddi_create_minor_node(dip, instance->iocnode,
893 		    S_IFCHR, INST2LSIRDCTL(instance_no), DDI_PSEUDO, 0) ==
894 		    DDI_FAILURE) {
895 			dev_err(dip, CE_WARN, "failed to create ioctl node.");
896 
897 			goto fail_attach;
898 		}
899 
900 		instance->unroll.ioctl = 1;
901 
902 		/* Create a taskq to handle dr events */
903 		if ((instance->taskq = ddi_taskq_create(dip,
904 		    "mrsas_dr_taskq", 1, TASKQ_DEFAULTPRI, 0)) == NULL) {
905 			dev_err(dip, CE_WARN, "failed to create taskq.");
906 			instance->taskq = NULL;
907 			goto fail_attach;
908 		}
909 		instance->unroll.taskq = 1;
910 		con_log(CL_ANN1, (CE_CONT, "ddi_taskq_create() done."));
911 
912 		/* enable interrupt */
913 		instance->func_ptr->enable_intr(instance);
914 
915 		/* initiate AEN */
916 		if (start_mfi_aen(instance)) {
917 			dev_err(dip, CE_WARN, "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 || instance->skinny) {
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 	return (DDI_FAILURE);
991 }
992 
993 /*
994  * getinfo - gets device information
995  * @dip:
996  * @cmd:
997  * @arg:
998  * @resultp:
999  *
1000  * The system calls getinfo() to obtain configuration information that only
1001  * the driver knows. The mapping of minor numbers to device instance is
1002  * entirely under the control of the driver. The system sometimes needs to ask
1003  * the driver which device a particular dev_t represents.
1004  * Given the device number return the devinfo pointer from the scsi_device
1005  * structure.
1006  */
1007 /*ARGSUSED*/
1008 static int
1009 mrsas_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd,  void *arg, void **resultp)
1010 {
1011 	int	rval;
1012 	int	mrsas_minor = getminor((dev_t)arg);
1013 
1014 	struct mrsas_instance	*instance;
1015 
1016 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1017 
1018 	switch (cmd) {
1019 		case DDI_INFO_DEVT2DEVINFO:
1020 			instance = (struct mrsas_instance *)
1021 			    ddi_get_soft_state(mrsas_state,
1022 			    MINOR2INST(mrsas_minor));
1023 
1024 			if (instance == NULL) {
1025 				*resultp = NULL;
1026 				rval = DDI_FAILURE;
1027 			} else {
1028 				*resultp = instance->dip;
1029 				rval = DDI_SUCCESS;
1030 			}
1031 			break;
1032 		case DDI_INFO_DEVT2INSTANCE:
1033 			*resultp = (void *)(intptr_t)
1034 			    (MINOR2INST(getminor((dev_t)arg)));
1035 			rval = DDI_SUCCESS;
1036 			break;
1037 		default:
1038 			*resultp = NULL;
1039 			rval = DDI_FAILURE;
1040 	}
1041 
1042 	return (rval);
1043 }
1044 
1045 /*
1046  * detach - detaches a device from the system
1047  * @dip: pointer to the device's dev_info structure
1048  * @cmd: type of detach
1049  *
1050  * A driver's detach() entry point is called to detach an instance of a device
1051  * that is bound to the driver. The entry point is called with the instance of
1052  * the device node to be detached and with DDI_DETACH, which is specified as
1053  * the cmd argument to the entry point.
1054  * This routine is called during driver unload. We free all the allocated
1055  * resources and call the corresponding LLD so that it can also release all
1056  * its resources.
1057  */
1058 static int
1059 mrsas_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
1060 {
1061 	int	instance_no;
1062 
1063 	struct mrsas_instance	*instance;
1064 
1065 	con_log(CL_ANN, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1066 
1067 
1068 	/* CONSTCOND */
1069 	ASSERT(NO_COMPETING_THREADS);
1070 
1071 	instance_no = ddi_get_instance(dip);
1072 
1073 	instance = (struct mrsas_instance *)ddi_get_soft_state(mrsas_state,
1074 	    instance_no);
1075 
1076 	if (!instance) {
1077 		dev_err(dip, CE_WARN, "could not get instance in detach");
1078 
1079 		return (DDI_FAILURE);
1080 	}
1081 
1082 	switch (cmd) {
1083 		case DDI_DETACH:
1084 			con_log(CL_ANN, (CE_NOTE,
1085 			    "mrsas_detach: DDI_DETACH"));
1086 
1087 			mutex_enter(&instance->config_dev_mtx);
1088 			if (instance->timeout_id != (timeout_id_t)-1) {
1089 				mutex_exit(&instance->config_dev_mtx);
1090 				(void) untimeout(instance->timeout_id);
1091 				instance->timeout_id = (timeout_id_t)-1;
1092 				mutex_enter(&instance->config_dev_mtx);
1093 				instance->unroll.timer = 0;
1094 			}
1095 			mutex_exit(&instance->config_dev_mtx);
1096 
1097 			if (instance->unroll.tranSetup == 1) {
1098 				if (scsi_hba_detach(dip) != DDI_SUCCESS) {
1099 					dev_err(dip, CE_WARN,
1100 					    "failed to detach");
1101 					return (DDI_FAILURE);
1102 				}
1103 				instance->unroll.tranSetup = 0;
1104 				con_log(CL_ANN1,
1105 				    (CE_CONT, "scsi_hba_dettach()  done."));
1106 			}
1107 
1108 			flush_cache(instance);
1109 
1110 			mrsas_undo_resources(dip, instance);
1111 
1112 			mrsas_fm_fini(instance);
1113 
1114 			pci_config_teardown(&instance->pci_handle);
1115 			ddi_soft_state_free(mrsas_state, instance_no);
1116 			break;
1117 
1118 		case DDI_PM_SUSPEND:
1119 			con_log(CL_ANN, (CE_NOTE,
1120 			    "mrsas_detach: DDI_PM_SUSPEND"));
1121 
1122 			break;
1123 		case DDI_SUSPEND:
1124 			con_log(CL_ANN, (CE_NOTE,
1125 			    "mrsas_detach: DDI_SUSPEND"));
1126 
1127 			break;
1128 		default:
1129 			con_log(CL_ANN, (CE_WARN,
1130 			    "invalid detach command:0x%x", cmd));
1131 			return (DDI_FAILURE);
1132 	}
1133 
1134 	return (DDI_SUCCESS);
1135 }
1136 
1137 
1138 static void
1139 mrsas_undo_resources(dev_info_t *dip, struct mrsas_instance *instance)
1140 {
1141 	con_log(CL_ANN, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1142 
1143 	if (instance->unroll.ioctl == 1) {
1144 		ddi_remove_minor_node(dip, instance->iocnode);
1145 		instance->unroll.ioctl = 0;
1146 	}
1147 
1148 	if (instance->unroll.scsictl == 1) {
1149 		ddi_remove_minor_node(dip, "scsi");
1150 		instance->unroll.scsictl = 0;
1151 	}
1152 
1153 	if (instance->unroll.devctl == 1) {
1154 		ddi_remove_minor_node(dip, "devctl");
1155 		instance->unroll.devctl = 0;
1156 	}
1157 
1158 	if (instance->unroll.tranSetup == 1) {
1159 		if (scsi_hba_detach(dip) != DDI_SUCCESS) {
1160 			dev_err(dip, CE_WARN, "failed to detach");
1161 			return;	 /* DDI_FAILURE */
1162 		}
1163 		instance->unroll.tranSetup = 0;
1164 		con_log(CL_ANN1, (CE_CONT, "scsi_hba_dettach()	done."));
1165 	}
1166 
1167 	if (instance->unroll.tran == 1)	 {
1168 		scsi_hba_tran_free(instance->tran);
1169 		instance->unroll.tran = 0;
1170 		con_log(CL_ANN1, (CE_CONT, "scsi_hba_tran_free()  done."));
1171 	}
1172 
1173 	if (instance->unroll.syncCmd == 1) {
1174 		if (instance->tbolt) {
1175 			if (abort_syncmap_cmd(instance,
1176 			    instance->map_update_cmd)) {
1177 				dev_err(dip, CE_WARN, "mrsas_detach: "
1178 				    "failed to abort previous syncmap command");
1179 			}
1180 
1181 			instance->unroll.syncCmd = 0;
1182 			con_log(CL_ANN1, (CE_CONT, "sync cmd aborted, done."));
1183 		}
1184 	}
1185 
1186 	if (instance->unroll.aenPend == 1) {
1187 		if (abort_aen_cmd(instance, instance->aen_cmd))
1188 			dev_err(dip, CE_WARN, "mrsas_detach: "
1189 			    "failed to abort prevous AEN command");
1190 
1191 		instance->unroll.aenPend = 0;
1192 		con_log(CL_ANN1, (CE_CONT, "aen cmd aborted, done."));
1193 		/* This means the controller is fully initialized and running */
1194 		/* Shutdown should be a last command to controller. */
1195 		/* shutdown_controller(); */
1196 	}
1197 
1198 
1199 	if (instance->unroll.timer == 1)	 {
1200 		if (instance->timeout_id != (timeout_id_t)-1) {
1201 			(void) untimeout(instance->timeout_id);
1202 			instance->timeout_id = (timeout_id_t)-1;
1203 
1204 			instance->unroll.timer = 0;
1205 		}
1206 	}
1207 
1208 	instance->func_ptr->disable_intr(instance);
1209 
1210 
1211 	if (instance->unroll.mutexs == 1) {
1212 		mutex_destroy(&instance->cmd_pool_mtx);
1213 		mutex_destroy(&instance->app_cmd_pool_mtx);
1214 		mutex_destroy(&instance->cmd_pend_mtx);
1215 		mutex_destroy(&instance->completed_pool_mtx);
1216 		mutex_destroy(&instance->sync_map_mtx);
1217 		mutex_destroy(&instance->int_cmd_mtx);
1218 		cv_destroy(&instance->int_cmd_cv);
1219 		mutex_destroy(&instance->config_dev_mtx);
1220 		mutex_destroy(&instance->ocr_flags_mtx);
1221 		mutex_destroy(&instance->reg_write_mtx);
1222 
1223 		if (instance->tbolt) {
1224 			mutex_destroy(&instance->cmd_app_pool_mtx);
1225 			mutex_destroy(&instance->chip_mtx);
1226 		}
1227 
1228 		instance->unroll.mutexs = 0;
1229 		con_log(CL_ANN1, (CE_CONT, "Destroy mutex & cv,	 done."));
1230 	}
1231 
1232 
1233 	if (instance->unroll.soft_isr == 1) {
1234 		ddi_remove_softintr(instance->soft_intr_id);
1235 		instance->unroll.soft_isr = 0;
1236 	}
1237 
1238 	if (instance->unroll.intr == 1) {
1239 		mrsas_rem_intrs(instance);
1240 		instance->unroll.intr = 0;
1241 	}
1242 
1243 
1244 	if (instance->unroll.taskq == 1)	 {
1245 		if (instance->taskq) {
1246 			ddi_taskq_destroy(instance->taskq);
1247 			instance->unroll.taskq = 0;
1248 		}
1249 
1250 	}
1251 
1252 	/*
1253 	 * free dma memory allocated for
1254 	 * cmds/frames/queues/driver version etc
1255 	 */
1256 	if (instance->unroll.verBuff == 1) {
1257 		(void) mrsas_free_dma_obj(instance, instance->drv_ver_dma_obj);
1258 		instance->unroll.verBuff = 0;
1259 	}
1260 
1261 	if (instance->unroll.pdlist_buff == 1)	{
1262 		if (instance->mr_tbolt_pd_list != NULL) {
1263 			kmem_free(instance->mr_tbolt_pd_list,
1264 			    MRSAS_TBOLT_GET_PD_MAX(instance) *
1265 			    sizeof (struct mrsas_tbolt_pd));
1266 		}
1267 
1268 		instance->mr_tbolt_pd_list = NULL;
1269 		instance->unroll.pdlist_buff = 0;
1270 	}
1271 
1272 	if (instance->unroll.ldlist_buff == 1)	{
1273 		if (instance->mr_ld_list != NULL) {
1274 			kmem_free(instance->mr_ld_list, MRDRV_MAX_LD
1275 			    * sizeof (struct mrsas_ld));
1276 		}
1277 
1278 		instance->mr_ld_list = NULL;
1279 		instance->unroll.ldlist_buff = 0;
1280 	}
1281 
1282 	if (instance->tbolt) {
1283 		if (instance->unroll.alloc_space_mpi2 == 1) {
1284 			free_space_for_mpi2(instance);
1285 			instance->unroll.alloc_space_mpi2 = 0;
1286 		}
1287 	} else {
1288 		if (instance->unroll.alloc_space_mfi == 1) {
1289 			free_space_for_mfi(instance);
1290 			instance->unroll.alloc_space_mfi = 0;
1291 		}
1292 	}
1293 
1294 	if (instance->unroll.regs == 1)	 {
1295 		ddi_regs_map_free(&instance->regmap_handle);
1296 		instance->unroll.regs = 0;
1297 		con_log(CL_ANN1, (CE_CONT, "ddi_regs_map_free()	 done."));
1298 	}
1299 }
1300 
1301 
1302 
1303 /*
1304  * ************************************************************************** *
1305  *									      *
1306  *	       common entry points - for character driver types		      *
1307  *									      *
1308  * ************************************************************************** *
1309  */
1310 /*
1311  * open - gets access to a device
1312  * @dev:
1313  * @openflags:
1314  * @otyp:
1315  * @credp:
1316  *
1317  * Access to a device by one or more application programs is controlled
1318  * through the open() and close() entry points. The primary function of
1319  * open() is to verify that the open request is allowed.
1320  */
1321 static	int
1322 mrsas_open(dev_t *dev, int openflags, int otyp, cred_t *credp)
1323 {
1324 	int	rval = 0;
1325 
1326 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1327 
1328 	/* Check root permissions */
1329 	if (drv_priv(credp) != 0) {
1330 		con_log(CL_ANN, (CE_WARN,
1331 		    "mr_sas: Non-root ioctl access denied!"));
1332 		return (EPERM);
1333 	}
1334 
1335 	/* Verify we are being opened as a character device */
1336 	if (otyp != OTYP_CHR) {
1337 		con_log(CL_ANN, (CE_WARN,
1338 		    "mr_sas: ioctl node must be a char node"));
1339 		return (EINVAL);
1340 	}
1341 
1342 	if (ddi_get_soft_state(mrsas_state, MINOR2INST(getminor(*dev)))
1343 	    == NULL) {
1344 		return (ENXIO);
1345 	}
1346 
1347 	if (scsi_hba_open) {
1348 		rval = scsi_hba_open(dev, openflags, otyp, credp);
1349 	}
1350 
1351 	return (rval);
1352 }
1353 
1354 /*
1355  * close - gives up access to a device
1356  * @dev:
1357  * @openflags:
1358  * @otyp:
1359  * @credp:
1360  *
1361  * close() should perform any cleanup necessary to finish using the minor
1362  * device, and prepare the device (and driver) to be opened again.
1363  */
1364 static	int
1365 mrsas_close(dev_t dev, int openflags, int otyp, cred_t *credp)
1366 {
1367 	int	rval = 0;
1368 
1369 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1370 
1371 	/* no need for locks! */
1372 
1373 	if (scsi_hba_close) {
1374 		rval = scsi_hba_close(dev, openflags, otyp, credp);
1375 	}
1376 
1377 	return (rval);
1378 }
1379 
1380 /*
1381  * ioctl - performs a range of I/O commands for character drivers
1382  * @dev:
1383  * @cmd:
1384  * @arg:
1385  * @mode:
1386  * @credp:
1387  * @rvalp:
1388  *
1389  * ioctl() routine must make sure that user data is copied into or out of the
1390  * kernel address space explicitly using copyin(), copyout(), ddi_copyin(),
1391  * and ddi_copyout(), as appropriate.
1392  * This is a wrapper routine to serialize access to the actual ioctl routine.
1393  * ioctl() should return 0 on success, or the appropriate error number. The
1394  * driver may also set the value returned to the calling process through rvalp.
1395  */
1396 
1397 static int
1398 mrsas_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *credp,
1399     int *rvalp)
1400 {
1401 	int	rval = 0;
1402 
1403 	struct mrsas_instance	*instance;
1404 	struct mrsas_ioctl	*ioctl;
1405 	struct mrsas_aen	aen;
1406 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1407 
1408 	instance = ddi_get_soft_state(mrsas_state, MINOR2INST(getminor(dev)));
1409 
1410 	if (instance == NULL) {
1411 		/* invalid minor number */
1412 		con_log(CL_ANN, (CE_WARN, "mr_sas: adapter not found."));
1413 		return (ENXIO);
1414 	}
1415 
1416 	ioctl = (struct mrsas_ioctl *)kmem_zalloc(sizeof (struct mrsas_ioctl),
1417 	    KM_SLEEP);
1418 	ASSERT(ioctl);
1419 
1420 	switch ((uint_t)cmd) {
1421 		case MRSAS_IOCTL_FIRMWARE:
1422 			if (ddi_copyin((void *)arg, ioctl,
1423 			    sizeof (struct mrsas_ioctl), mode)) {
1424 				con_log(CL_ANN, (CE_WARN, "mrsas_ioctl: "
1425 				    "ERROR IOCTL copyin"));
1426 				kmem_free(ioctl, sizeof (struct mrsas_ioctl));
1427 				return (EFAULT);
1428 			}
1429 
1430 			if (ioctl->control_code == MRSAS_DRIVER_IOCTL_COMMON) {
1431 				rval = handle_drv_ioctl(instance, ioctl, mode);
1432 			} else {
1433 				rval = handle_mfi_ioctl(instance, ioctl, mode);
1434 			}
1435 
1436 			if (ddi_copyout((void *)ioctl, (void *)arg,
1437 			    (sizeof (struct mrsas_ioctl) - 1), mode)) {
1438 				con_log(CL_ANN, (CE_WARN,
1439 				    "mrsas_ioctl: copy_to_user failed"));
1440 				rval = 1;
1441 			}
1442 
1443 			break;
1444 		case MRSAS_IOCTL_AEN:
1445 			if (ddi_copyin((void *) arg, &aen,
1446 			    sizeof (struct mrsas_aen), mode)) {
1447 				con_log(CL_ANN, (CE_WARN,
1448 				    "mrsas_ioctl: ERROR AEN copyin"));
1449 				kmem_free(ioctl, sizeof (struct mrsas_ioctl));
1450 				return (EFAULT);
1451 			}
1452 
1453 			rval = handle_mfi_aen(instance, &aen);
1454 
1455 			if (ddi_copyout((void *) &aen, (void *)arg,
1456 			    sizeof (struct mrsas_aen), mode)) {
1457 				con_log(CL_ANN, (CE_WARN,
1458 				    "mrsas_ioctl: copy_to_user failed"));
1459 				rval = 1;
1460 			}
1461 
1462 			break;
1463 		default:
1464 			rval = scsi_hba_ioctl(dev, cmd, arg,
1465 			    mode, credp, rvalp);
1466 
1467 			con_log(CL_DLEVEL1, (CE_NOTE, "mrsas_ioctl: "
1468 			    "scsi_hba_ioctl called, ret = %x.", rval));
1469 	}
1470 
1471 	kmem_free(ioctl, sizeof (struct mrsas_ioctl));
1472 	return (rval);
1473 }
1474 
1475 /*
1476  * ************************************************************************** *
1477  *									      *
1478  *		 common entry points - for block driver types		      *
1479  *									      *
1480  * ************************************************************************** *
1481  */
1482 #ifdef __sparc
1483 /*
1484  * reset - TBD
1485  * @dip:
1486  * @cmd:
1487  *
1488  * TBD
1489  */
1490 /*ARGSUSED*/
1491 static int
1492 mrsas_reset(dev_info_t *dip, ddi_reset_cmd_t cmd)
1493 {
1494 	int	instance_no;
1495 
1496 	struct mrsas_instance	*instance;
1497 
1498 	instance_no = ddi_get_instance(dip);
1499 	instance = (struct mrsas_instance *)ddi_get_soft_state
1500 	    (mrsas_state, instance_no);
1501 
1502 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1503 
1504 	if (!instance) {
1505 		con_log(CL_ANN, (CE_WARN, "mr_sas:%d could not get adapter "
1506 		    "in reset", instance_no));
1507 		return (DDI_FAILURE);
1508 	}
1509 
1510 	instance->func_ptr->disable_intr(instance);
1511 
1512 	con_log(CL_ANN1, (CE_CONT, "flushing cache for instance %d",
1513 	    instance_no));
1514 
1515 	flush_cache(instance);
1516 
1517 	return (DDI_SUCCESS);
1518 }
1519 #else /* __sparc */
1520 /*ARGSUSED*/
1521 static int
1522 mrsas_quiesce(dev_info_t *dip)
1523 {
1524 	int	instance_no;
1525 
1526 	struct mrsas_instance	*instance;
1527 
1528 	instance_no = ddi_get_instance(dip);
1529 	instance = (struct mrsas_instance *)ddi_get_soft_state
1530 	    (mrsas_state, instance_no);
1531 
1532 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1533 
1534 	if (!instance) {
1535 		con_log(CL_ANN1, (CE_WARN, "mr_sas:%d could not get adapter "
1536 		    "in quiesce", instance_no));
1537 		return (DDI_FAILURE);
1538 	}
1539 	if (instance->deadadapter || instance->adapterresetinprogress) {
1540 		con_log(CL_ANN1, (CE_WARN, "mr_sas:%d adapter is not in "
1541 		    "healthy state", instance_no));
1542 		return (DDI_FAILURE);
1543 	}
1544 
1545 	if (abort_aen_cmd(instance, instance->aen_cmd)) {
1546 		con_log(CL_ANN1, (CE_WARN, "mrsas_quiesce: "
1547 		    "failed to abort prevous AEN command QUIESCE"));
1548 	}
1549 
1550 	if (instance->tbolt) {
1551 		if (abort_syncmap_cmd(instance,
1552 		    instance->map_update_cmd)) {
1553 			dev_err(dip, CE_WARN,
1554 			    "mrsas_detach: failed to abort "
1555 			    "previous syncmap command");
1556 			return (DDI_FAILURE);
1557 		}
1558 	}
1559 
1560 	instance->func_ptr->disable_intr(instance);
1561 
1562 	con_log(CL_ANN1, (CE_CONT, "flushing cache for instance %d",
1563 	    instance_no));
1564 
1565 	flush_cache(instance);
1566 
1567 	if (wait_for_outstanding(instance)) {
1568 		con_log(CL_ANN1,
1569 		    (CE_CONT, "wait_for_outstanding: return FAIL.\n"));
1570 		return (DDI_FAILURE);
1571 	}
1572 	return (DDI_SUCCESS);
1573 }
1574 #endif	/* __sparc */
1575 
1576 /*
1577  * ************************************************************************** *
1578  *									      *
1579  *			    entry points (SCSI HBA)			      *
1580  *									      *
1581  * ************************************************************************** *
1582  */
1583 /*
1584  * tran_tgt_init - initialize a target device instance
1585  * @hba_dip:
1586  * @tgt_dip:
1587  * @tran:
1588  * @sd:
1589  *
1590  * The tran_tgt_init() entry point enables the HBA to allocate and initialize
1591  * any per-target resources. tran_tgt_init() also enables the HBA to qualify
1592  * the device's address as valid and supportable for that particular HBA.
1593  * By returning DDI_FAILURE, the instance of the target driver for that device
1594  * is not probed or attached.
1595  */
1596 /*ARGSUSED*/
1597 static int
1598 mrsas_tran_tgt_init(dev_info_t *hba_dip, dev_info_t *tgt_dip,
1599 		scsi_hba_tran_t *tran, struct scsi_device *sd)
1600 {
1601 	struct mrsas_instance *instance;
1602 	uint16_t tgt = sd->sd_address.a_target;
1603 	uint8_t lun = sd->sd_address.a_lun;
1604 	dev_info_t *child = NULL;
1605 
1606 	con_log(CL_DLEVEL2, (CE_NOTE, "mrsas_tgt_init target %d lun %d",
1607 	    tgt, lun));
1608 
1609 	instance = ADDR2MR(&sd->sd_address);
1610 
1611 	if (ndi_dev_is_persistent_node(tgt_dip) == 0) {
1612 		/*
1613 		 * If no persistent node exists, we don't allow .conf node
1614 		 * to be created.
1615 		 */
1616 		if ((child = mrsas_find_child(instance, tgt, lun)) != NULL) {
1617 			con_log(CL_DLEVEL2,
1618 			    (CE_NOTE, "mrsas_tgt_init find child ="
1619 			    " %p t = %d l = %d", (void *)child, tgt, lun));
1620 			if (ndi_merge_node(tgt_dip, mrsas_name_node) !=
1621 			    DDI_SUCCESS)
1622 				/* Create this .conf node */
1623 				return (DDI_SUCCESS);
1624 		}
1625 		con_log(CL_DLEVEL2, (CE_NOTE, "mrsas_tgt_init in ndi_per "
1626 		    "DDI_FAILURE t = %d l = %d", tgt, lun));
1627 		return (DDI_FAILURE);
1628 
1629 	}
1630 
1631 	con_log(CL_DLEVEL2, (CE_NOTE, "mrsas_tgt_init dev_dip %p tgt_dip %p",
1632 	    (void *)instance->mr_ld_list[tgt].dip, (void *)tgt_dip));
1633 
1634 	if (tgt < MRDRV_MAX_LD && lun == 0) {
1635 		if (instance->mr_ld_list[tgt].dip == NULL &&
1636 		    strcmp(ddi_driver_name(sd->sd_dev), "sd") == 0) {
1637 			mutex_enter(&instance->config_dev_mtx);
1638 			instance->mr_ld_list[tgt].dip = tgt_dip;
1639 			instance->mr_ld_list[tgt].lun_type = MRSAS_LD_LUN;
1640 			instance->mr_ld_list[tgt].flag = MRDRV_TGT_VALID;
1641 			mutex_exit(&instance->config_dev_mtx);
1642 		}
1643 	}
1644 
1645 #ifdef PDSUPPORT
1646 	else if (instance->tbolt || instance->skinny) {
1647 		if (instance->mr_tbolt_pd_list[tgt].dip == NULL) {
1648 			mutex_enter(&instance->config_dev_mtx);
1649 			instance->mr_tbolt_pd_list[tgt].dip = tgt_dip;
1650 			instance->mr_tbolt_pd_list[tgt].flag =
1651 			    MRDRV_TGT_VALID;
1652 			mutex_exit(&instance->config_dev_mtx);
1653 			con_log(CL_ANN1, (CE_NOTE, "mrsas_tran_tgt_init:"
1654 			    "t%xl%x", tgt, lun));
1655 		}
1656 	}
1657 #endif
1658 
1659 	return (DDI_SUCCESS);
1660 }
1661 
1662 /*ARGSUSED*/
1663 static void
1664 mrsas_tran_tgt_free(dev_info_t *hba_dip, dev_info_t *tgt_dip,
1665     scsi_hba_tran_t *hba_tran, struct scsi_device *sd)
1666 {
1667 	struct mrsas_instance *instance;
1668 	int tgt = sd->sd_address.a_target;
1669 	int lun = sd->sd_address.a_lun;
1670 
1671 	instance = ADDR2MR(&sd->sd_address);
1672 
1673 	con_log(CL_DLEVEL2, (CE_NOTE, "tgt_free t = %d l = %d", tgt, lun));
1674 
1675 	if (tgt < MRDRV_MAX_LD && lun == 0) {
1676 		if (instance->mr_ld_list[tgt].dip == tgt_dip) {
1677 			mutex_enter(&instance->config_dev_mtx);
1678 			instance->mr_ld_list[tgt].dip = NULL;
1679 			mutex_exit(&instance->config_dev_mtx);
1680 		}
1681 	}
1682 
1683 #ifdef PDSUPPORT
1684 	else if (instance->tbolt || instance->skinny) {
1685 		mutex_enter(&instance->config_dev_mtx);
1686 		instance->mr_tbolt_pd_list[tgt].dip = NULL;
1687 		mutex_exit(&instance->config_dev_mtx);
1688 		con_log(CL_ANN1, (CE_NOTE, "tgt_free: Setting dip = NULL"
1689 		    "for tgt:%x", tgt));
1690 	}
1691 #endif
1692 
1693 }
1694 
1695 dev_info_t *
1696 mrsas_find_child(struct mrsas_instance *instance, uint16_t tgt, uint8_t lun)
1697 {
1698 	dev_info_t *child = NULL;
1699 	char addr[SCSI_MAXNAMELEN];
1700 	char tmp[MAXNAMELEN];
1701 
1702 	(void) sprintf(addr, "%x,%x", tgt, lun);
1703 	for (child = ddi_get_child(instance->dip); child;
1704 	    child = ddi_get_next_sibling(child)) {
1705 
1706 		if (ndi_dev_is_persistent_node(child) == 0) {
1707 			continue;
1708 		}
1709 
1710 		if (mrsas_name_node(child, tmp, MAXNAMELEN) !=
1711 		    DDI_SUCCESS) {
1712 			continue;
1713 		}
1714 
1715 		if (strcmp(addr, tmp) == 0) {
1716 			break;
1717 		}
1718 	}
1719 	con_log(CL_DLEVEL2, (CE_NOTE, "mrsas_find_child: return child = %p",
1720 	    (void *)child));
1721 	return (child);
1722 }
1723 
1724 /*
1725  * mrsas_name_node -
1726  * @dip:
1727  * @name:
1728  * @len:
1729  */
1730 static int
1731 mrsas_name_node(dev_info_t *dip, char *name, int len)
1732 {
1733 	int tgt, lun;
1734 
1735 	tgt = ddi_prop_get_int(DDI_DEV_T_ANY, dip,
1736 	    DDI_PROP_DONTPASS, "target", -1);
1737 	con_log(CL_DLEVEL2, (CE_NOTE,
1738 	    "mrsas_name_node: dip %p tgt %d", (void *)dip, tgt));
1739 	if (tgt == -1) {
1740 		return (DDI_FAILURE);
1741 	}
1742 	lun = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
1743 	    "lun", -1);
1744 	con_log(CL_DLEVEL2,
1745 	    (CE_NOTE, "mrsas_name_node: tgt %d lun %d", tgt, lun));
1746 	if (lun == -1) {
1747 		return (DDI_FAILURE);
1748 	}
1749 	(void) snprintf(name, len, "%x,%x", tgt, lun);
1750 	return (DDI_SUCCESS);
1751 }
1752 
1753 /*
1754  * tran_init_pkt - allocate & initialize a scsi_pkt structure
1755  * @ap:
1756  * @pkt:
1757  * @bp:
1758  * @cmdlen:
1759  * @statuslen:
1760  * @tgtlen:
1761  * @flags:
1762  * @callback:
1763  *
1764  * The tran_init_pkt() entry point allocates and initializes a scsi_pkt
1765  * structure and DMA resources for a target driver request. The
1766  * tran_init_pkt() entry point is called when the target driver calls the
1767  * SCSA function scsi_init_pkt(). Each call of the tran_init_pkt() entry point
1768  * is a request to perform one or more of three possible services:
1769  *  - allocation and initialization of a scsi_pkt structure
1770  *  - allocation of DMA resources for data transfer
1771  *  - reallocation of DMA resources for the next portion of the data transfer
1772  */
1773 static struct scsi_pkt *
1774 mrsas_tran_init_pkt(struct scsi_address *ap, register struct scsi_pkt *pkt,
1775 	struct buf *bp, int cmdlen, int statuslen, int tgtlen,
1776 	int flags, int (*callback)(), caddr_t arg)
1777 {
1778 	struct scsa_cmd	*acmd;
1779 	struct mrsas_instance	*instance;
1780 	struct scsi_pkt	*new_pkt;
1781 
1782 	con_log(CL_DLEVEL1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1783 
1784 	instance = ADDR2MR(ap);
1785 
1786 	/* step #1 : pkt allocation */
1787 	if (pkt == NULL) {
1788 		pkt = scsi_hba_pkt_alloc(instance->dip, ap, cmdlen, statuslen,
1789 		    tgtlen, sizeof (struct scsa_cmd), callback, arg);
1790 		if (pkt == NULL) {
1791 			return (NULL);
1792 		}
1793 
1794 		acmd = PKT2CMD(pkt);
1795 
1796 		/*
1797 		 * Initialize the new pkt - we redundantly initialize
1798 		 * all the fields for illustrative purposes.
1799 		 */
1800 		acmd->cmd_pkt		= pkt;
1801 		acmd->cmd_flags		= 0;
1802 		acmd->cmd_scblen	= statuslen;
1803 		acmd->cmd_cdblen	= cmdlen;
1804 		acmd->cmd_dmahandle	= NULL;
1805 		acmd->cmd_ncookies	= 0;
1806 		acmd->cmd_cookie	= 0;
1807 		acmd->cmd_cookiecnt	= 0;
1808 		acmd->cmd_nwin		= 0;
1809 
1810 		pkt->pkt_address	= *ap;
1811 		pkt->pkt_comp		= (void (*)())NULL;
1812 		pkt->pkt_flags		= 0;
1813 		pkt->pkt_time		= 0;
1814 		pkt->pkt_resid		= 0;
1815 		pkt->pkt_state		= 0;
1816 		pkt->pkt_statistics	= 0;
1817 		pkt->pkt_reason		= 0;
1818 		new_pkt			= pkt;
1819 	} else {
1820 		acmd = PKT2CMD(pkt);
1821 		new_pkt = NULL;
1822 	}
1823 
1824 	/* step #2 : dma allocation/move */
1825 	if (bp && bp->b_bcount != 0) {
1826 		if (acmd->cmd_dmahandle == NULL) {
1827 			if (mrsas_dma_alloc(instance, pkt, bp, flags,
1828 			    callback) == DDI_FAILURE) {
1829 				if (new_pkt) {
1830 					scsi_hba_pkt_free(ap, new_pkt);
1831 				}
1832 				return ((struct scsi_pkt *)NULL);
1833 			}
1834 		} else {
1835 			if (mrsas_dma_move(instance, pkt, bp) == DDI_FAILURE) {
1836 				return ((struct scsi_pkt *)NULL);
1837 			}
1838 		}
1839 	}
1840 
1841 	return (pkt);
1842 }
1843 
1844 /*
1845  * tran_start - transport a SCSI command to the addressed target
1846  * @ap:
1847  * @pkt:
1848  *
1849  * The tran_start() entry point for a SCSI HBA driver is called to transport a
1850  * SCSI command to the addressed target. The SCSI command is described
1851  * entirely within the scsi_pkt structure, which the target driver allocated
1852  * through the HBA driver's tran_init_pkt() entry point. If the command
1853  * involves a data transfer, DMA resources must also have been allocated for
1854  * the scsi_pkt structure.
1855  *
1856  * Return Values :
1857  *	TRAN_BUSY - request queue is full, no more free scbs
1858  *	TRAN_ACCEPT - pkt has been submitted to the instance
1859  */
1860 static int
1861 mrsas_tran_start(struct scsi_address *ap, register struct scsi_pkt *pkt)
1862 {
1863 	uchar_t		cmd_done = 0;
1864 
1865 	struct mrsas_instance	*instance = ADDR2MR(ap);
1866 	struct mrsas_cmd	*cmd;
1867 
1868 	con_log(CL_DLEVEL1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1869 	if (instance->deadadapter == 1) {
1870 		con_log(CL_ANN1, (CE_WARN,
1871 		    "mrsas_tran_start: return TRAN_FATAL_ERROR "
1872 		    "for IO, as the HBA doesnt take any more IOs"));
1873 		if (pkt) {
1874 			pkt->pkt_reason		= CMD_DEV_GONE;
1875 			pkt->pkt_statistics	= STAT_DISCON;
1876 		}
1877 		return (TRAN_FATAL_ERROR);
1878 	}
1879 
1880 	if (instance->adapterresetinprogress) {
1881 		con_log(CL_ANN1, (CE_NOTE, "mrsas_tran_start: Reset flag set, "
1882 		    "returning mfi_pkt and setting TRAN_BUSY\n"));
1883 		return (TRAN_BUSY);
1884 	}
1885 
1886 	con_log(CL_ANN1, (CE_CONT, "chkpnt:%s:%d:SCSI CDB[0]=0x%x time:%x",
1887 	    __func__, __LINE__, pkt->pkt_cdbp[0], pkt->pkt_time));
1888 
1889 	pkt->pkt_reason	= CMD_CMPLT;
1890 	*pkt->pkt_scbp = STATUS_GOOD; /* clear arq scsi_status */
1891 
1892 	cmd = build_cmd(instance, ap, pkt, &cmd_done);
1893 
1894 	/*
1895 	 * Check if the command is already completed by the mrsas_build_cmd()
1896 	 * routine. In which case the busy_flag would be clear and scb will be
1897 	 * NULL and appropriate reason provided in pkt_reason field
1898 	 */
1899 	if (cmd_done) {
1900 		pkt->pkt_reason = CMD_CMPLT;
1901 		pkt->pkt_scbp[0] = STATUS_GOOD;
1902 		pkt->pkt_state |= STATE_GOT_BUS | STATE_GOT_TARGET
1903 		    | STATE_SENT_CMD;
1904 		if (((pkt->pkt_flags & FLAG_NOINTR) == 0) && pkt->pkt_comp) {
1905 			(*pkt->pkt_comp)(pkt);
1906 		}
1907 
1908 		return (TRAN_ACCEPT);
1909 	}
1910 
1911 	if (cmd == NULL) {
1912 		return (TRAN_BUSY);
1913 	}
1914 
1915 	if ((pkt->pkt_flags & FLAG_NOINTR) == 0) {
1916 		if (instance->fw_outstanding > instance->max_fw_cmds) {
1917 			con_log(CL_ANN, (CE_CONT, "mr_sas:Firmware busy"));
1918 			DTRACE_PROBE2(start_tran_err,
1919 			    uint16_t, instance->fw_outstanding,
1920 			    uint16_t, instance->max_fw_cmds);
1921 			mrsas_return_mfi_pkt(instance, cmd);
1922 			return (TRAN_BUSY);
1923 		}
1924 
1925 		/* Synchronize the Cmd frame for the controller */
1926 		(void) ddi_dma_sync(cmd->frame_dma_obj.dma_handle, 0, 0,
1927 		    DDI_DMA_SYNC_FORDEV);
1928 		con_log(CL_ANN, (CE_CONT, "issue_cmd_ppc: SCSI CDB[0]=0x%x"
1929 		    "cmd->index:%x\n", pkt->pkt_cdbp[0], cmd->index));
1930 		instance->func_ptr->issue_cmd(cmd, instance);
1931 
1932 	} else {
1933 		struct mrsas_header *hdr = &cmd->frame->hdr;
1934 
1935 		instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd);
1936 
1937 		pkt->pkt_reason		= CMD_CMPLT;
1938 		pkt->pkt_statistics	= 0;
1939 		pkt->pkt_state |= STATE_XFERRED_DATA | STATE_GOT_STATUS;
1940 
1941 		switch (ddi_get8(cmd->frame_dma_obj.acc_handle,
1942 		    &hdr->cmd_status)) {
1943 		case MFI_STAT_OK:
1944 			pkt->pkt_scbp[0] = STATUS_GOOD;
1945 			break;
1946 
1947 		case MFI_STAT_SCSI_DONE_WITH_ERROR:
1948 			con_log(CL_ANN, (CE_CONT,
1949 			    "mrsas_tran_start: scsi done with error"));
1950 			pkt->pkt_reason	= CMD_CMPLT;
1951 			pkt->pkt_statistics = 0;
1952 
1953 			((struct scsi_status *)pkt->pkt_scbp)->sts_chk = 1;
1954 			break;
1955 
1956 		case MFI_STAT_DEVICE_NOT_FOUND:
1957 			con_log(CL_ANN, (CE_CONT,
1958 			    "mrsas_tran_start: device not found error"));
1959 			pkt->pkt_reason		= CMD_DEV_GONE;
1960 			pkt->pkt_statistics	= STAT_DISCON;
1961 			break;
1962 
1963 		default:
1964 			((struct scsi_status *)pkt->pkt_scbp)->sts_busy = 1;
1965 		}
1966 
1967 		(void) mrsas_common_check(instance, cmd);
1968 		DTRACE_PROBE2(start_nointr_done, uint8_t, hdr->cmd,
1969 		    uint8_t, hdr->cmd_status);
1970 		mrsas_return_mfi_pkt(instance, cmd);
1971 
1972 		if (pkt->pkt_comp) {
1973 			(*pkt->pkt_comp)(pkt);
1974 		}
1975 
1976 	}
1977 
1978 	return (TRAN_ACCEPT);
1979 }
1980 
1981 /*
1982  * tran_abort - Abort any commands that are currently in transport
1983  * @ap:
1984  * @pkt:
1985  *
1986  * The tran_abort() entry point for a SCSI HBA driver is called to abort any
1987  * commands that are currently in transport for a particular target. This entry
1988  * point is called when a target driver calls scsi_abort(). The tran_abort()
1989  * entry point should attempt to abort the command denoted by the pkt
1990  * parameter. If the pkt parameter is NULL, tran_abort() should attempt to
1991  * abort all outstanding commands in the transport layer for the particular
1992  * target or logical unit.
1993  */
1994 /*ARGSUSED*/
1995 static int
1996 mrsas_tran_abort(struct scsi_address *ap, struct scsi_pkt *pkt)
1997 {
1998 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
1999 
2000 	/* abort command not supported by H/W */
2001 
2002 	return (DDI_FAILURE);
2003 }
2004 
2005 /*
2006  * tran_reset - reset either the SCSI bus or target
2007  * @ap:
2008  * @level:
2009  *
2010  * The tran_reset() entry point for a SCSI HBA driver is called to reset either
2011  * the SCSI bus or a particular SCSI target device. This entry point is called
2012  * when a target driver calls scsi_reset(). The tran_reset() entry point must
2013  * reset the SCSI bus if level is RESET_ALL. If level is RESET_TARGET, just the
2014  * particular target or logical unit must be reset.
2015  */
2016 /*ARGSUSED*/
2017 static int
2018 mrsas_tran_reset(struct scsi_address *ap, int level)
2019 {
2020 	struct mrsas_instance *instance = ADDR2MR(ap);
2021 
2022 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
2023 
2024 	if (wait_for_outstanding(instance)) {
2025 		con_log(CL_ANN1,
2026 		    (CE_CONT, "wait_for_outstanding: return FAIL.\n"));
2027 		return (DDI_FAILURE);
2028 	} else {
2029 		return (DDI_SUCCESS);
2030 	}
2031 }
2032 
2033 /*
2034  * tran_getcap - get one of a set of SCSA-defined capabilities
2035  * @ap:
2036  * @cap:
2037  * @whom:
2038  *
2039  * The target driver can request the current setting of the capability for a
2040  * particular target by setting the whom parameter to nonzero. A whom value of
2041  * zero indicates a request for the current setting of the general capability
2042  * for the SCSI bus or for adapter hardware. The tran_getcap() should return -1
2043  * for undefined capabilities or the current value of the requested capability.
2044  */
2045 /*ARGSUSED*/
2046 static int
2047 mrsas_tran_getcap(struct scsi_address *ap, char *cap, int whom)
2048 {
2049 	int	rval = 0;
2050 
2051 	struct mrsas_instance	*instance = ADDR2MR(ap);
2052 
2053 	con_log(CL_DLEVEL2, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
2054 
2055 	/* we do allow inquiring about capabilities for other targets */
2056 	if (cap == NULL) {
2057 		return (-1);
2058 	}
2059 
2060 	switch (scsi_hba_lookup_capstr(cap)) {
2061 	case SCSI_CAP_DMA_MAX:
2062 		if (instance->tbolt) {
2063 			/* Limit to 256k max transfer */
2064 			rval = mrsas_tbolt_max_cap_maxxfer;
2065 		} else {
2066 			/* Limit to 16MB max transfer */
2067 			rval = mrsas_max_cap_maxxfer;
2068 		}
2069 		break;
2070 	case SCSI_CAP_MSG_OUT:
2071 		rval = 1;
2072 		break;
2073 	case SCSI_CAP_DISCONNECT:
2074 		rval = 0;
2075 		break;
2076 	case SCSI_CAP_SYNCHRONOUS:
2077 		rval = 0;
2078 		break;
2079 	case SCSI_CAP_WIDE_XFER:
2080 		rval = 1;
2081 		break;
2082 	case SCSI_CAP_TAGGED_QING:
2083 		rval = 1;
2084 		break;
2085 	case SCSI_CAP_UNTAGGED_QING:
2086 		rval = 1;
2087 		break;
2088 	case SCSI_CAP_PARITY:
2089 		rval = 1;
2090 		break;
2091 	case SCSI_CAP_INITIATOR_ID:
2092 		rval = instance->init_id;
2093 		break;
2094 	case SCSI_CAP_ARQ:
2095 		rval = 1;
2096 		break;
2097 	case SCSI_CAP_LINKED_CMDS:
2098 		rval = 0;
2099 		break;
2100 	case SCSI_CAP_RESET_NOTIFICATION:
2101 		rval = 1;
2102 		break;
2103 	case SCSI_CAP_GEOMETRY:
2104 		rval = -1;
2105 
2106 		break;
2107 	default:
2108 		con_log(CL_DLEVEL2, (CE_NOTE, "Default cap coming 0x%x",
2109 		    scsi_hba_lookup_capstr(cap)));
2110 		rval = -1;
2111 		break;
2112 	}
2113 
2114 	return (rval);
2115 }
2116 
2117 /*
2118  * tran_setcap - set one of a set of SCSA-defined capabilities
2119  * @ap:
2120  * @cap:
2121  * @value:
2122  * @whom:
2123  *
2124  * The target driver might request that the new value be set for a particular
2125  * target by setting the whom parameter to nonzero. A whom value of zero
2126  * means that request is to set the new value for the SCSI bus or for adapter
2127  * hardware in general.
2128  * The tran_setcap() should return the following values as appropriate:
2129  * - -1 for undefined capabilities
2130  * - 0 if the HBA driver cannot set the capability to the requested value
2131  * - 1 if the HBA driver is able to set the capability to the requested value
2132  */
2133 /*ARGSUSED*/
2134 static int
2135 mrsas_tran_setcap(struct scsi_address *ap, char *cap, int value, int whom)
2136 {
2137 	int		rval = 1;
2138 
2139 	con_log(CL_DLEVEL2, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
2140 
2141 	/* We don't allow setting capabilities for other targets */
2142 	if (cap == NULL || whom == 0) {
2143 		return (-1);
2144 	}
2145 
2146 	switch (scsi_hba_lookup_capstr(cap)) {
2147 		case SCSI_CAP_DMA_MAX:
2148 		case SCSI_CAP_MSG_OUT:
2149 		case SCSI_CAP_PARITY:
2150 		case SCSI_CAP_LINKED_CMDS:
2151 		case SCSI_CAP_RESET_NOTIFICATION:
2152 		case SCSI_CAP_DISCONNECT:
2153 		case SCSI_CAP_SYNCHRONOUS:
2154 		case SCSI_CAP_UNTAGGED_QING:
2155 		case SCSI_CAP_WIDE_XFER:
2156 		case SCSI_CAP_INITIATOR_ID:
2157 		case SCSI_CAP_ARQ:
2158 			/*
2159 			 * None of these are settable via
2160 			 * the capability interface.
2161 			 */
2162 			break;
2163 		case SCSI_CAP_TAGGED_QING:
2164 			rval = 1;
2165 			break;
2166 		case SCSI_CAP_SECTOR_SIZE:
2167 			rval = 1;
2168 			break;
2169 
2170 		case SCSI_CAP_TOTAL_SECTORS:
2171 			rval = 1;
2172 			break;
2173 		default:
2174 			rval = -1;
2175 			break;
2176 	}
2177 
2178 	return (rval);
2179 }
2180 
2181 /*
2182  * tran_destroy_pkt - deallocate scsi_pkt structure
2183  * @ap:
2184  * @pkt:
2185  *
2186  * The tran_destroy_pkt() entry point is the HBA driver function that
2187  * deallocates scsi_pkt structures. The tran_destroy_pkt() entry point is
2188  * called when the target driver calls scsi_destroy_pkt(). The
2189  * tran_destroy_pkt() entry point must free any DMA resources that have been
2190  * allocated for the packet. An implicit DMA synchronization occurs if the
2191  * DMA resources are freed and any cached data remains after the completion
2192  * of the transfer.
2193  */
2194 static void
2195 mrsas_tran_destroy_pkt(struct scsi_address *ap, struct scsi_pkt *pkt)
2196 {
2197 	struct scsa_cmd *acmd = PKT2CMD(pkt);
2198 
2199 	con_log(CL_DLEVEL2, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
2200 
2201 	if (acmd->cmd_flags & CFLAG_DMAVALID) {
2202 		acmd->cmd_flags &= ~CFLAG_DMAVALID;
2203 
2204 		(void) ddi_dma_unbind_handle(acmd->cmd_dmahandle);
2205 
2206 		ddi_dma_free_handle(&acmd->cmd_dmahandle);
2207 
2208 		acmd->cmd_dmahandle = NULL;
2209 	}
2210 
2211 	/* free the pkt */
2212 	scsi_hba_pkt_free(ap, pkt);
2213 }
2214 
2215 /*
2216  * tran_dmafree - deallocates DMA resources
2217  * @ap:
2218  * @pkt:
2219  *
2220  * The tran_dmafree() entry point deallocates DMAQ resources that have been
2221  * allocated for a scsi_pkt structure. The tran_dmafree() entry point is
2222  * called when the target driver calls scsi_dmafree(). The tran_dmafree() must
2223  * free only DMA resources allocated for a scsi_pkt structure, not the
2224  * scsi_pkt itself. When DMA resources are freed, a DMA synchronization is
2225  * implicitly performed.
2226  */
2227 /*ARGSUSED*/
2228 static void
2229 mrsas_tran_dmafree(struct scsi_address *ap, struct scsi_pkt *pkt)
2230 {
2231 	register struct scsa_cmd *acmd = PKT2CMD(pkt);
2232 
2233 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
2234 
2235 	if (acmd->cmd_flags & CFLAG_DMAVALID) {
2236 		acmd->cmd_flags &= ~CFLAG_DMAVALID;
2237 
2238 		(void) ddi_dma_unbind_handle(acmd->cmd_dmahandle);
2239 
2240 		ddi_dma_free_handle(&acmd->cmd_dmahandle);
2241 
2242 		acmd->cmd_dmahandle = NULL;
2243 	}
2244 }
2245 
2246 /*
2247  * tran_sync_pkt - synchronize the DMA object allocated
2248  * @ap:
2249  * @pkt:
2250  *
2251  * The tran_sync_pkt() entry point synchronizes the DMA object allocated for
2252  * the scsi_pkt structure before or after a DMA transfer. The tran_sync_pkt()
2253  * entry point is called when the target driver calls scsi_sync_pkt(). If the
2254  * data transfer direction is a DMA read from device to memory, tran_sync_pkt()
2255  * must synchronize the CPU's view of the data. If the data transfer direction
2256  * is a DMA write from memory to device, tran_sync_pkt() must synchronize the
2257  * device's view of the data.
2258  */
2259 /*ARGSUSED*/
2260 static void
2261 mrsas_tran_sync_pkt(struct scsi_address *ap, struct scsi_pkt *pkt)
2262 {
2263 	register struct scsa_cmd	*acmd = PKT2CMD(pkt);
2264 
2265 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
2266 
2267 	if (acmd->cmd_flags & CFLAG_DMAVALID) {
2268 		(void) ddi_dma_sync(acmd->cmd_dmahandle, acmd->cmd_dma_offset,
2269 		    acmd->cmd_dma_len, (acmd->cmd_flags & CFLAG_DMASEND) ?
2270 		    DDI_DMA_SYNC_FORDEV : DDI_DMA_SYNC_FORCPU);
2271 	}
2272 }
2273 
2274 /*ARGSUSED*/
2275 static int
2276 mrsas_tran_quiesce(dev_info_t *dip)
2277 {
2278 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
2279 
2280 	return (1);
2281 }
2282 
2283 /*ARGSUSED*/
2284 static int
2285 mrsas_tran_unquiesce(dev_info_t *dip)
2286 {
2287 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
2288 
2289 	return (1);
2290 }
2291 
2292 
2293 /*
2294  * mrsas_isr(caddr_t)
2295  *
2296  * The Interrupt Service Routine
2297  *
2298  * Collect status for all completed commands and do callback
2299  *
2300  */
2301 static uint_t
2302 mrsas_isr(struct mrsas_instance *instance)
2303 {
2304 	int		need_softintr;
2305 	uint32_t	producer;
2306 	uint32_t	consumer;
2307 	uint32_t	context;
2308 	int		retval;
2309 
2310 	struct mrsas_cmd	*cmd;
2311 	struct mrsas_header	*hdr;
2312 	struct scsi_pkt		*pkt;
2313 
2314 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
2315 	ASSERT(instance);
2316 	if (instance->tbolt) {
2317 		mutex_enter(&instance->chip_mtx);
2318 		if ((instance->intr_type == DDI_INTR_TYPE_FIXED) &&
2319 		    !(instance->func_ptr->intr_ack(instance))) {
2320 			mutex_exit(&instance->chip_mtx);
2321 			return (DDI_INTR_UNCLAIMED);
2322 		}
2323 		retval = mr_sas_tbolt_process_outstanding_cmd(instance);
2324 		mutex_exit(&instance->chip_mtx);
2325 		return (retval);
2326 	} else {
2327 		if ((instance->intr_type == DDI_INTR_TYPE_FIXED) &&
2328 		    !instance->func_ptr->intr_ack(instance)) {
2329 			return (DDI_INTR_UNCLAIMED);
2330 		}
2331 	}
2332 
2333 	(void) ddi_dma_sync(instance->mfi_internal_dma_obj.dma_handle,
2334 	    0, 0, DDI_DMA_SYNC_FORCPU);
2335 
2336 	if (mrsas_check_dma_handle(instance->mfi_internal_dma_obj.dma_handle)
2337 	    != DDI_SUCCESS) {
2338 		mrsas_fm_ereport(instance, DDI_FM_DEVICE_NO_RESPONSE);
2339 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
2340 		con_log(CL_ANN1, (CE_WARN,
2341 		    "mr_sas_isr(): FMA check, returning DDI_INTR_UNCLAIMED"));
2342 		return (DDI_INTR_CLAIMED);
2343 	}
2344 	con_log(CL_ANN1, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
2345 
2346 #ifdef OCRDEBUG
2347 	if (debug_consecutive_timeout_after_ocr_g == 1) {
2348 		con_log(CL_ANN1, (CE_NOTE,
2349 		    "simulating consecutive timeout after ocr"));
2350 		return (DDI_INTR_CLAIMED);
2351 	}
2352 #endif
2353 
2354 	mutex_enter(&instance->completed_pool_mtx);
2355 	mutex_enter(&instance->cmd_pend_mtx);
2356 
2357 	producer = ddi_get32(instance->mfi_internal_dma_obj.acc_handle,
2358 	    instance->producer);
2359 	consumer = ddi_get32(instance->mfi_internal_dma_obj.acc_handle,
2360 	    instance->consumer);
2361 
2362 	con_log(CL_ANN, (CE_CONT, " producer %x consumer %x ",
2363 	    producer, consumer));
2364 	if (producer == consumer) {
2365 		con_log(CL_ANN, (CE_WARN, "producer ==	consumer case"));
2366 		DTRACE_PROBE2(isr_pc_err, uint32_t, producer,
2367 		    uint32_t, consumer);
2368 		mutex_exit(&instance->cmd_pend_mtx);
2369 		mutex_exit(&instance->completed_pool_mtx);
2370 		return (DDI_INTR_CLAIMED);
2371 	}
2372 
2373 	while (consumer != producer) {
2374 		context = ddi_get32(instance->mfi_internal_dma_obj.acc_handle,
2375 		    &instance->reply_queue[consumer]);
2376 		cmd = instance->cmd_list[context];
2377 
2378 		if (cmd->sync_cmd == MRSAS_TRUE) {
2379 			hdr = (struct mrsas_header *)&cmd->frame->hdr;
2380 			if (hdr) {
2381 				mlist_del_init(&cmd->list);
2382 			}
2383 		} else {
2384 			pkt = cmd->pkt;
2385 			if (pkt) {
2386 				mlist_del_init(&cmd->list);
2387 			}
2388 		}
2389 
2390 		mlist_add_tail(&cmd->list, &instance->completed_pool_list);
2391 
2392 		consumer++;
2393 		if (consumer == (instance->max_fw_cmds + 1)) {
2394 			consumer = 0;
2395 		}
2396 	}
2397 	ddi_put32(instance->mfi_internal_dma_obj.acc_handle,
2398 	    instance->consumer, consumer);
2399 	mutex_exit(&instance->cmd_pend_mtx);
2400 	mutex_exit(&instance->completed_pool_mtx);
2401 
2402 	(void) ddi_dma_sync(instance->mfi_internal_dma_obj.dma_handle,
2403 	    0, 0, DDI_DMA_SYNC_FORDEV);
2404 
2405 	if (instance->softint_running) {
2406 		need_softintr = 0;
2407 	} else {
2408 		need_softintr = 1;
2409 	}
2410 
2411 	if (instance->isr_level == HIGH_LEVEL_INTR) {
2412 		if (need_softintr) {
2413 			ddi_trigger_softintr(instance->soft_intr_id);
2414 		}
2415 	} else {
2416 		/*
2417 		 * Not a high-level interrupt, therefore call the soft level
2418 		 * interrupt explicitly
2419 		 */
2420 		(void) mrsas_softintr(instance);
2421 	}
2422 
2423 	return (DDI_INTR_CLAIMED);
2424 }
2425 
2426 
2427 /*
2428  * ************************************************************************** *
2429  *									      *
2430  *				    libraries				      *
2431  *									      *
2432  * ************************************************************************** *
2433  */
2434 /*
2435  * get_mfi_pkt : Get a command from the free pool
2436  * After successful allocation, the caller of this routine
2437  * must clear the frame buffer (memset to zero) before
2438  * using the packet further.
2439  *
2440  * ***** Note *****
2441  * After clearing the frame buffer the context id of the
2442  * frame buffer SHOULD be restored back.
2443  */
2444 struct mrsas_cmd *
2445 mrsas_get_mfi_pkt(struct mrsas_instance *instance)
2446 {
2447 	mlist_t			*head = &instance->cmd_pool_list;
2448 	struct mrsas_cmd	*cmd = NULL;
2449 
2450 	mutex_enter(&instance->cmd_pool_mtx);
2451 
2452 	if (!mlist_empty(head)) {
2453 		cmd = mlist_entry(head->next, struct mrsas_cmd, list);
2454 		mlist_del_init(head->next);
2455 	}
2456 	if (cmd != NULL) {
2457 		cmd->pkt = NULL;
2458 		cmd->retry_count_for_ocr = 0;
2459 		cmd->drv_pkt_time = 0;
2460 
2461 	}
2462 	mutex_exit(&instance->cmd_pool_mtx);
2463 
2464 	return (cmd);
2465 }
2466 
2467 static struct mrsas_cmd *
2468 get_mfi_app_pkt(struct mrsas_instance *instance)
2469 {
2470 	mlist_t				*head = &instance->app_cmd_pool_list;
2471 	struct mrsas_cmd	*cmd = NULL;
2472 
2473 	mutex_enter(&instance->app_cmd_pool_mtx);
2474 
2475 	if (!mlist_empty(head)) {
2476 		cmd = mlist_entry(head->next, struct mrsas_cmd, list);
2477 		mlist_del_init(head->next);
2478 	}
2479 	if (cmd != NULL) {
2480 		cmd->pkt = NULL;
2481 		cmd->retry_count_for_ocr = 0;
2482 		cmd->drv_pkt_time = 0;
2483 	}
2484 
2485 	mutex_exit(&instance->app_cmd_pool_mtx);
2486 
2487 	return (cmd);
2488 }
2489 /*
2490  * return_mfi_pkt : Return a cmd to free command pool
2491  */
2492 void
2493 mrsas_return_mfi_pkt(struct mrsas_instance *instance, struct mrsas_cmd *cmd)
2494 {
2495 	mutex_enter(&instance->cmd_pool_mtx);
2496 	/* use mlist_add_tail for debug assistance */
2497 	mlist_add_tail(&cmd->list, &instance->cmd_pool_list);
2498 
2499 	mutex_exit(&instance->cmd_pool_mtx);
2500 }
2501 
2502 static void
2503 return_mfi_app_pkt(struct mrsas_instance *instance, struct mrsas_cmd *cmd)
2504 {
2505 	mutex_enter(&instance->app_cmd_pool_mtx);
2506 
2507 	mlist_add(&cmd->list, &instance->app_cmd_pool_list);
2508 
2509 	mutex_exit(&instance->app_cmd_pool_mtx);
2510 }
2511 void
2512 push_pending_mfi_pkt(struct mrsas_instance *instance, struct mrsas_cmd *cmd)
2513 {
2514 	struct scsi_pkt *pkt;
2515 	struct mrsas_header	*hdr;
2516 	con_log(CL_DLEVEL2, (CE_NOTE, "push_pending_pkt(): Called\n"));
2517 	mutex_enter(&instance->cmd_pend_mtx);
2518 	mlist_del_init(&cmd->list);
2519 	mlist_add_tail(&cmd->list, &instance->cmd_pend_list);
2520 	if (cmd->sync_cmd == MRSAS_TRUE) {
2521 		hdr = (struct mrsas_header *)&cmd->frame->hdr;
2522 		if (hdr) {
2523 			con_log(CL_ANN1, (CE_CONT,
2524 			    "push_pending_mfi_pkt: "
2525 			    "cmd %p index %x "
2526 			    "time %llx",
2527 			    (void *)cmd, cmd->index,
2528 			    gethrtime()));
2529 			/* Wait for specified interval	*/
2530 			cmd->drv_pkt_time = ddi_get16(
2531 			    cmd->frame_dma_obj.acc_handle, &hdr->timeout);
2532 			if (cmd->drv_pkt_time < debug_timeout_g)
2533 				cmd->drv_pkt_time = (uint16_t)debug_timeout_g;
2534 				con_log(CL_ANN1, (CE_CONT,
2535 				    "push_pending_pkt(): "
2536 				    "Called IO Timeout Value %x\n",
2537 				    cmd->drv_pkt_time));
2538 		}
2539 		if (hdr && instance->timeout_id == (timeout_id_t)-1) {
2540 			instance->timeout_id = timeout(io_timeout_checker,
2541 			    (void *) instance, drv_usectohz(MRSAS_1_SECOND));
2542 		}
2543 	} else {
2544 		pkt = cmd->pkt;
2545 		if (pkt) {
2546 			con_log(CL_ANN1, (CE_CONT,
2547 			    "push_pending_mfi_pkt: "
2548 			    "cmd %p index %x pkt %p, "
2549 			    "time %llx",
2550 			    (void *)cmd, cmd->index, (void *)pkt,
2551 			    gethrtime()));
2552 			cmd->drv_pkt_time = (uint16_t)debug_timeout_g;
2553 		}
2554 		if (pkt && instance->timeout_id == (timeout_id_t)-1) {
2555 			instance->timeout_id = timeout(io_timeout_checker,
2556 			    (void *) instance, drv_usectohz(MRSAS_1_SECOND));
2557 		}
2558 	}
2559 
2560 	mutex_exit(&instance->cmd_pend_mtx);
2561 
2562 }
2563 
2564 int
2565 mrsas_print_pending_cmds(struct mrsas_instance *instance)
2566 {
2567 	mlist_t *head = &instance->cmd_pend_list;
2568 	mlist_t *tmp = head;
2569 	struct mrsas_cmd *cmd = NULL;
2570 	struct mrsas_header	*hdr;
2571 	unsigned int		flag = 1;
2572 	struct scsi_pkt *pkt;
2573 	int saved_level;
2574 	int cmd_count = 0;
2575 
2576 	saved_level = debug_level_g;
2577 	debug_level_g = CL_ANN1;
2578 
2579 	dev_err(instance->dip, CE_NOTE,
2580 	    "mrsas_print_pending_cmds(): Called");
2581 
2582 	while (flag) {
2583 		mutex_enter(&instance->cmd_pend_mtx);
2584 		tmp	=	tmp->next;
2585 		if (tmp == head) {
2586 			mutex_exit(&instance->cmd_pend_mtx);
2587 			flag = 0;
2588 			con_log(CL_ANN1, (CE_CONT, "mrsas_print_pending_cmds():"
2589 			    " NO MORE CMDS PENDING....\n"));
2590 			break;
2591 		} else {
2592 			cmd = mlist_entry(tmp, struct mrsas_cmd, list);
2593 			mutex_exit(&instance->cmd_pend_mtx);
2594 			if (cmd) {
2595 				if (cmd->sync_cmd == MRSAS_TRUE) {
2596 					hdr = (struct mrsas_header *)
2597 					    &cmd->frame->hdr;
2598 					if (hdr) {
2599 						con_log(CL_ANN1, (CE_CONT,
2600 						    "print: cmd %p index 0x%x "
2601 						    "drv_pkt_time 0x%x (NO-PKT)"
2602 						    " hdr %p\n", (void *)cmd,
2603 						    cmd->index,
2604 						    cmd->drv_pkt_time,
2605 						    (void *)hdr));
2606 					}
2607 				} else {
2608 					pkt = cmd->pkt;
2609 					if (pkt) {
2610 					con_log(CL_ANN1, (CE_CONT,
2611 					    "print: cmd %p index 0x%x "
2612 					    "drv_pkt_time 0x%x pkt %p \n",
2613 					    (void *)cmd, cmd->index,
2614 					    cmd->drv_pkt_time, (void *)pkt));
2615 					}
2616 				}
2617 
2618 				if (++cmd_count == 1) {
2619 					mrsas_print_cmd_details(instance, cmd,
2620 					    0xDD);
2621 				} else {
2622 					mrsas_print_cmd_details(instance, cmd,
2623 					    1);
2624 				}
2625 
2626 			}
2627 		}
2628 	}
2629 	con_log(CL_ANN1, (CE_CONT, "mrsas_print_pending_cmds(): Done\n"));
2630 
2631 
2632 	debug_level_g = saved_level;
2633 
2634 	return (DDI_SUCCESS);
2635 }
2636 
2637 
2638 int
2639 mrsas_complete_pending_cmds(struct mrsas_instance *instance)
2640 {
2641 
2642 	struct mrsas_cmd *cmd = NULL;
2643 	struct scsi_pkt *pkt;
2644 	struct mrsas_header *hdr;
2645 
2646 	struct mlist_head		*pos, *next;
2647 
2648 	con_log(CL_ANN1, (CE_NOTE,
2649 	    "mrsas_complete_pending_cmds(): Called"));
2650 
2651 	mutex_enter(&instance->cmd_pend_mtx);
2652 	mlist_for_each_safe(pos, next, &instance->cmd_pend_list) {
2653 		cmd = mlist_entry(pos, struct mrsas_cmd, list);
2654 		if (cmd) {
2655 			pkt = cmd->pkt;
2656 			if (pkt) { /* for IO */
2657 				if (((pkt->pkt_flags & FLAG_NOINTR)
2658 				    == 0) && pkt->pkt_comp) {
2659 					pkt->pkt_reason
2660 					    = CMD_DEV_GONE;
2661 					pkt->pkt_statistics
2662 					    = STAT_DISCON;
2663 					con_log(CL_ANN1, (CE_CONT,
2664 					    "fail and posting to scsa "
2665 					    "cmd %p index %x"
2666 					    " pkt %p "
2667 					    "time : %llx",
2668 					    (void *)cmd, cmd->index,
2669 					    (void *)pkt, gethrtime()));
2670 					(*pkt->pkt_comp)(pkt);
2671 				}
2672 			} else { /* for DCMDS */
2673 				if (cmd->sync_cmd == MRSAS_TRUE) {
2674 				hdr = (struct mrsas_header *)&cmd->frame->hdr;
2675 				con_log(CL_ANN1, (CE_CONT,
2676 				    "posting invalid status to application "
2677 				    "cmd %p index %x"
2678 				    " hdr %p "
2679 				    "time : %llx",
2680 				    (void *)cmd, cmd->index,
2681 				    (void *)hdr, gethrtime()));
2682 				hdr->cmd_status = MFI_STAT_INVALID_STATUS;
2683 				complete_cmd_in_sync_mode(instance, cmd);
2684 				}
2685 			}
2686 			mlist_del_init(&cmd->list);
2687 		} else {
2688 			con_log(CL_ANN1, (CE_CONT,
2689 			    "mrsas_complete_pending_cmds:"
2690 			    "NULL command\n"));
2691 		}
2692 		con_log(CL_ANN1, (CE_CONT,
2693 		    "mrsas_complete_pending_cmds:"
2694 		    "looping for more commands\n"));
2695 	}
2696 	mutex_exit(&instance->cmd_pend_mtx);
2697 
2698 	con_log(CL_ANN1, (CE_CONT, "mrsas_complete_pending_cmds(): DONE\n"));
2699 	return (DDI_SUCCESS);
2700 }
2701 
2702 void
2703 mrsas_print_cmd_details(struct mrsas_instance *instance, struct mrsas_cmd *cmd,
2704     int detail)
2705 {
2706 	struct scsi_pkt *pkt = cmd->pkt;
2707 	Mpi2RaidSCSIIORequest_t *scsi_io = cmd->scsi_io_request;
2708 	int i;
2709 	int saved_level;
2710 	ddi_acc_handle_t acc_handle =
2711 	    instance->mpi2_frame_pool_dma_obj.acc_handle;
2712 
2713 	if (detail == 0xDD) {
2714 		saved_level = debug_level_g;
2715 		debug_level_g = CL_ANN1;
2716 	}
2717 
2718 
2719 	if (instance->tbolt) {
2720 		con_log(CL_ANN1, (CE_CONT, "print_cmd_details: cmd %p "
2721 		    "cmd->index 0x%x SMID 0x%x timer 0x%x sec\n",
2722 		    (void *)cmd, cmd->index, cmd->SMID, cmd->drv_pkt_time));
2723 	} else {
2724 		con_log(CL_ANN1, (CE_CONT, "print_cmd_details: cmd %p "
2725 		    "cmd->index 0x%x timer 0x%x sec\n",
2726 		    (void *)cmd, cmd->index, cmd->drv_pkt_time));
2727 	}
2728 
2729 	if (pkt) {
2730 		con_log(CL_ANN1, (CE_CONT, "scsi_pkt CDB[0]=0x%x",
2731 		    pkt->pkt_cdbp[0]));
2732 	} else {
2733 		con_log(CL_ANN1, (CE_CONT, "NO-PKT"));
2734 	}
2735 
2736 	if ((detail == 0xDD) && instance->tbolt) {
2737 		con_log(CL_ANN1, (CE_CONT, "RAID_SCSI_IO_REQUEST\n"));
2738 		con_log(CL_ANN1, (CE_CONT, "DevHandle=0x%X Function=0x%X "
2739 		    "IoFlags=0x%X SGLFlags=0x%X DataLength=0x%X\n",
2740 		    ddi_get16(acc_handle, &scsi_io->DevHandle),
2741 		    ddi_get8(acc_handle, &scsi_io->Function),
2742 		    ddi_get16(acc_handle, &scsi_io->IoFlags),
2743 		    ddi_get16(acc_handle, &scsi_io->SGLFlags),
2744 		    ddi_get32(acc_handle, &scsi_io->DataLength)));
2745 
2746 		for (i = 0; i < 32; i++) {
2747 			con_log(CL_ANN1, (CE_CONT, "CDB[%d]=0x%x ", i,
2748 			    ddi_get8(acc_handle, &scsi_io->CDB.CDB32[i])));
2749 		}
2750 
2751 		con_log(CL_ANN1, (CE_CONT, "RAID-CONTEXT\n"));
2752 		con_log(CL_ANN1, (CE_CONT, "status=0x%X extStatus=0x%X "
2753 		    "ldTargetId=0x%X timeoutValue=0x%X regLockFlags=0x%X "
2754 		    "RAIDFlags=0x%X regLockRowLBA=0x%" PRIu64
2755 		    " regLockLength=0x%X spanArm=0x%X\n",
2756 		    ddi_get8(acc_handle, &scsi_io->RaidContext.status),
2757 		    ddi_get8(acc_handle, &scsi_io->RaidContext.extStatus),
2758 		    ddi_get16(acc_handle, &scsi_io->RaidContext.ldTargetId),
2759 		    ddi_get16(acc_handle, &scsi_io->RaidContext.timeoutValue),
2760 		    ddi_get8(acc_handle, &scsi_io->RaidContext.regLockFlags),
2761 		    ddi_get8(acc_handle, &scsi_io->RaidContext.RAIDFlags),
2762 		    ddi_get64(acc_handle, &scsi_io->RaidContext.regLockRowLBA),
2763 		    ddi_get32(acc_handle, &scsi_io->RaidContext.regLockLength),
2764 		    ddi_get8(acc_handle, &scsi_io->RaidContext.spanArm)));
2765 	}
2766 
2767 	if (detail == 0xDD) {
2768 		debug_level_g = saved_level;
2769 	}
2770 }
2771 
2772 
2773 int
2774 mrsas_issue_pending_cmds(struct mrsas_instance *instance)
2775 {
2776 	mlist_t *head	=	&instance->cmd_pend_list;
2777 	mlist_t *tmp	=	head->next;
2778 	struct mrsas_cmd *cmd = NULL;
2779 	struct scsi_pkt *pkt;
2780 
2781 	con_log(CL_ANN1, (CE_NOTE, "mrsas_issue_pending_cmds(): Called"));
2782 	while (tmp != head) {
2783 		mutex_enter(&instance->cmd_pend_mtx);
2784 		cmd = mlist_entry(tmp, struct mrsas_cmd, list);
2785 		tmp = tmp->next;
2786 		mutex_exit(&instance->cmd_pend_mtx);
2787 		if (cmd) {
2788 			con_log(CL_ANN1, (CE_CONT,
2789 			    "mrsas_issue_pending_cmds(): "
2790 			    "Got a cmd: cmd %p index 0x%x drv_pkt_time 0x%x ",
2791 			    (void *)cmd, cmd->index, cmd->drv_pkt_time));
2792 
2793 			/* Reset command timeout value */
2794 			if (cmd->drv_pkt_time < debug_timeout_g)
2795 				cmd->drv_pkt_time = (uint16_t)debug_timeout_g;
2796 
2797 			cmd->retry_count_for_ocr++;
2798 
2799 			dev_err(instance->dip, CE_CONT,
2800 			    "cmd retry count = %d\n",
2801 			    cmd->retry_count_for_ocr);
2802 
2803 			if (cmd->retry_count_for_ocr > IO_RETRY_COUNT) {
2804 				dev_err(instance->dip,
2805 				    CE_WARN, "mrsas_issue_pending_cmds(): "
2806 				    "cmd->retry_count exceeded limit >%d\n",
2807 				    IO_RETRY_COUNT);
2808 				mrsas_print_cmd_details(instance, cmd, 0xDD);
2809 
2810 				dev_err(instance->dip, CE_WARN,
2811 				    "mrsas_issue_pending_cmds():"
2812 				    "Calling KILL Adapter");
2813 				if (instance->tbolt)
2814 					mrsas_tbolt_kill_adapter(instance);
2815 				else
2816 					(void) mrsas_kill_adapter(instance);
2817 				return (DDI_FAILURE);
2818 			}
2819 
2820 			pkt = cmd->pkt;
2821 			if (pkt) {
2822 				con_log(CL_ANN1, (CE_CONT,
2823 				    "PENDING PKT-CMD ISSUE: cmd %p index %x "
2824 				    "pkt %p time %llx",
2825 				    (void *)cmd, cmd->index,
2826 				    (void *)pkt,
2827 				    gethrtime()));
2828 
2829 			} else {
2830 				dev_err(instance->dip, CE_CONT,
2831 				    "mrsas_issue_pending_cmds(): NO-PKT, "
2832 				    "cmd %p index 0x%x drv_pkt_time 0x%x",
2833 				    (void *)cmd, cmd->index, cmd->drv_pkt_time);
2834 			}
2835 
2836 
2837 			if (cmd->sync_cmd == MRSAS_TRUE) {
2838 				dev_err(instance->dip, CE_CONT,
2839 				    "mrsas_issue_pending_cmds(): "
2840 				    "SYNC_CMD == TRUE \n");
2841 				instance->func_ptr->issue_cmd_in_sync_mode(
2842 				    instance, cmd);
2843 			} else {
2844 				instance->func_ptr->issue_cmd(cmd, instance);
2845 			}
2846 		} else {
2847 			con_log(CL_ANN1, (CE_CONT,
2848 			    "mrsas_issue_pending_cmds: NULL command\n"));
2849 		}
2850 		con_log(CL_ANN1, (CE_CONT,
2851 		    "mrsas_issue_pending_cmds:"
2852 		    "looping for more commands"));
2853 	}
2854 	con_log(CL_ANN1, (CE_CONT, "mrsas_issue_pending_cmds(): DONE\n"));
2855 	return (DDI_SUCCESS);
2856 }
2857 
2858 
2859 
2860 /*
2861  * destroy_mfi_frame_pool
2862  */
2863 void
2864 destroy_mfi_frame_pool(struct mrsas_instance *instance)
2865 {
2866 	int		i;
2867 	uint32_t	max_cmd = instance->max_fw_cmds;
2868 
2869 	struct mrsas_cmd	*cmd;
2870 
2871 	/* return all frames to pool */
2872 
2873 	for (i = 0; i < max_cmd; i++) {
2874 
2875 		cmd = instance->cmd_list[i];
2876 
2877 		if (cmd->frame_dma_obj_status == DMA_OBJ_ALLOCATED)
2878 			(void) mrsas_free_dma_obj(instance, cmd->frame_dma_obj);
2879 
2880 		cmd->frame_dma_obj_status  = DMA_OBJ_FREED;
2881 	}
2882 
2883 }
2884 
2885 /*
2886  * create_mfi_frame_pool
2887  */
2888 int
2889 create_mfi_frame_pool(struct mrsas_instance *instance)
2890 {
2891 	int		i = 0;
2892 	int		cookie_cnt;
2893 	uint16_t	max_cmd;
2894 	uint16_t	sge_sz;
2895 	uint32_t	sgl_sz;
2896 	uint32_t	tot_frame_size;
2897 	struct mrsas_cmd	*cmd;
2898 	int			retval = DDI_SUCCESS;
2899 
2900 	max_cmd = instance->max_fw_cmds;
2901 	sge_sz	= sizeof (struct mrsas_sge_ieee);
2902 	/* calculated the number of 64byte frames required for SGL */
2903 	sgl_sz		= sge_sz * instance->max_num_sge;
2904 	tot_frame_size	= sgl_sz + MRMFI_FRAME_SIZE + SENSE_LENGTH;
2905 
2906 	con_log(CL_DLEVEL3, (CE_NOTE, "create_mfi_frame_pool: "
2907 	    "sgl_sz %x tot_frame_size %x", sgl_sz, tot_frame_size));
2908 
2909 	while (i < max_cmd) {
2910 		cmd = instance->cmd_list[i];
2911 
2912 		cmd->frame_dma_obj.size	= tot_frame_size;
2913 		cmd->frame_dma_obj.dma_attr = mrsas_generic_dma_attr;
2914 		cmd->frame_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
2915 		cmd->frame_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
2916 		cmd->frame_dma_obj.dma_attr.dma_attr_sgllen = 1;
2917 		cmd->frame_dma_obj.dma_attr.dma_attr_align = 64;
2918 
2919 		cookie_cnt = mrsas_alloc_dma_obj(instance, &cmd->frame_dma_obj,
2920 		    (uchar_t)DDI_STRUCTURE_LE_ACC);
2921 
2922 		if (cookie_cnt == -1 || cookie_cnt > 1) {
2923 			dev_err(instance->dip, CE_WARN,
2924 			    "create_mfi_frame_pool: could not alloc.");
2925 			retval = DDI_FAILURE;
2926 			goto mrsas_undo_frame_pool;
2927 		}
2928 
2929 		bzero(cmd->frame_dma_obj.buffer, tot_frame_size);
2930 
2931 		cmd->frame_dma_obj_status = DMA_OBJ_ALLOCATED;
2932 		cmd->frame = (union mrsas_frame *)cmd->frame_dma_obj.buffer;
2933 		cmd->frame_phys_addr =
2934 		    cmd->frame_dma_obj.dma_cookie[0].dmac_address;
2935 
2936 		cmd->sense = (uint8_t *)(((unsigned long)
2937 		    cmd->frame_dma_obj.buffer) +
2938 		    tot_frame_size - SENSE_LENGTH);
2939 		cmd->sense_phys_addr =
2940 		    cmd->frame_dma_obj.dma_cookie[0].dmac_address +
2941 		    tot_frame_size - SENSE_LENGTH;
2942 
2943 		if (!cmd->frame || !cmd->sense) {
2944 			dev_err(instance->dip, CE_WARN,
2945 			    "pci_pool_alloc failed");
2946 			retval = ENOMEM;
2947 			goto mrsas_undo_frame_pool;
2948 		}
2949 
2950 		ddi_put32(cmd->frame_dma_obj.acc_handle,
2951 		    &cmd->frame->io.context, cmd->index);
2952 		i++;
2953 
2954 		con_log(CL_DLEVEL3, (CE_NOTE, "[%x]-%x",
2955 		    cmd->index, cmd->frame_phys_addr));
2956 	}
2957 
2958 	return (DDI_SUCCESS);
2959 
2960 mrsas_undo_frame_pool:
2961 	if (i > 0)
2962 		destroy_mfi_frame_pool(instance);
2963 
2964 	return (retval);
2965 }
2966 
2967 /*
2968  * free_additional_dma_buffer
2969  */
2970 static void
2971 free_additional_dma_buffer(struct mrsas_instance *instance)
2972 {
2973 	if (instance->mfi_internal_dma_obj.status == DMA_OBJ_ALLOCATED) {
2974 		(void) mrsas_free_dma_obj(instance,
2975 		    instance->mfi_internal_dma_obj);
2976 		instance->mfi_internal_dma_obj.status = DMA_OBJ_FREED;
2977 	}
2978 
2979 	if (instance->mfi_evt_detail_obj.status == DMA_OBJ_ALLOCATED) {
2980 		(void) mrsas_free_dma_obj(instance,
2981 		    instance->mfi_evt_detail_obj);
2982 		instance->mfi_evt_detail_obj.status = DMA_OBJ_FREED;
2983 	}
2984 }
2985 
2986 /*
2987  * alloc_additional_dma_buffer
2988  */
2989 static int
2990 alloc_additional_dma_buffer(struct mrsas_instance *instance)
2991 {
2992 	uint32_t	reply_q_sz;
2993 	uint32_t	internal_buf_size = PAGESIZE*2;
2994 
2995 	/* max cmds plus 1 + producer & consumer */
2996 	reply_q_sz = sizeof (uint32_t) * (instance->max_fw_cmds + 1 + 2);
2997 
2998 	instance->mfi_internal_dma_obj.size = internal_buf_size;
2999 	instance->mfi_internal_dma_obj.dma_attr	= mrsas_generic_dma_attr;
3000 	instance->mfi_internal_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
3001 	instance->mfi_internal_dma_obj.dma_attr.dma_attr_count_max =
3002 	    0xFFFFFFFFU;
3003 	instance->mfi_internal_dma_obj.dma_attr.dma_attr_sgllen	= 1;
3004 
3005 	if (mrsas_alloc_dma_obj(instance, &instance->mfi_internal_dma_obj,
3006 	    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
3007 		dev_err(instance->dip, CE_WARN,
3008 		    "could not alloc reply queue");
3009 		return (DDI_FAILURE);
3010 	}
3011 
3012 	bzero(instance->mfi_internal_dma_obj.buffer, internal_buf_size);
3013 
3014 	instance->mfi_internal_dma_obj.status |= DMA_OBJ_ALLOCATED;
3015 
3016 	instance->producer = (uint32_t *)((unsigned long)
3017 	    instance->mfi_internal_dma_obj.buffer);
3018 	instance->consumer = (uint32_t *)((unsigned long)
3019 	    instance->mfi_internal_dma_obj.buffer + 4);
3020 	instance->reply_queue = (uint32_t *)((unsigned long)
3021 	    instance->mfi_internal_dma_obj.buffer + 8);
3022 	instance->internal_buf = (caddr_t)(((unsigned long)
3023 	    instance->mfi_internal_dma_obj.buffer) + reply_q_sz + 8);
3024 	instance->internal_buf_dmac_add =
3025 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address +
3026 	    (reply_q_sz + 8);
3027 	instance->internal_buf_size = internal_buf_size -
3028 	    (reply_q_sz + 8);
3029 
3030 	/* allocate evt_detail */
3031 	instance->mfi_evt_detail_obj.size = sizeof (struct mrsas_evt_detail);
3032 	instance->mfi_evt_detail_obj.dma_attr = mrsas_generic_dma_attr;
3033 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
3034 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
3035 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_sgllen = 1;
3036 	instance->mfi_evt_detail_obj.dma_attr.dma_attr_align = 1;
3037 
3038 	if (mrsas_alloc_dma_obj(instance, &instance->mfi_evt_detail_obj,
3039 	    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
3040 		dev_err(instance->dip, CE_WARN, "alloc_additional_dma_buffer: "
3041 		    "could not allocate data transfer buffer.");
3042 		goto mrsas_undo_internal_buff;
3043 	}
3044 
3045 	bzero(instance->mfi_evt_detail_obj.buffer,
3046 	    sizeof (struct mrsas_evt_detail));
3047 
3048 	instance->mfi_evt_detail_obj.status |= DMA_OBJ_ALLOCATED;
3049 
3050 	return (DDI_SUCCESS);
3051 
3052 mrsas_undo_internal_buff:
3053 	if (instance->mfi_internal_dma_obj.status == DMA_OBJ_ALLOCATED) {
3054 		(void) mrsas_free_dma_obj(instance,
3055 		    instance->mfi_internal_dma_obj);
3056 		instance->mfi_internal_dma_obj.status = DMA_OBJ_FREED;
3057 	}
3058 
3059 	return (DDI_FAILURE);
3060 }
3061 
3062 
3063 void
3064 mrsas_free_cmd_pool(struct mrsas_instance *instance)
3065 {
3066 	int		i;
3067 	uint32_t	max_cmd;
3068 	size_t		sz;
3069 
3070 	/* already freed */
3071 	if (instance->cmd_list == NULL) {
3072 		return;
3073 	}
3074 
3075 	max_cmd = instance->max_fw_cmds;
3076 
3077 	/* size of cmd_list array */
3078 	sz = sizeof (struct mrsas_cmd *) * max_cmd;
3079 
3080 	/* First free each cmd */
3081 	for (i = 0; i < max_cmd; i++) {
3082 		if (instance->cmd_list[i] != NULL) {
3083 			kmem_free(instance->cmd_list[i],
3084 			    sizeof (struct mrsas_cmd));
3085 		}
3086 
3087 		instance->cmd_list[i] = NULL;
3088 	}
3089 
3090 	/* Now, free cmd_list array */
3091 	if (instance->cmd_list != NULL)
3092 		kmem_free(instance->cmd_list, sz);
3093 
3094 	instance->cmd_list = NULL;
3095 
3096 	INIT_LIST_HEAD(&instance->cmd_pool_list);
3097 	INIT_LIST_HEAD(&instance->cmd_pend_list);
3098 	if (instance->tbolt) {
3099 		INIT_LIST_HEAD(&instance->cmd_app_pool_list);
3100 	} else {
3101 		INIT_LIST_HEAD(&instance->app_cmd_pool_list);
3102 	}
3103 
3104 }
3105 
3106 
3107 /*
3108  * mrsas_alloc_cmd_pool
3109  */
3110 int
3111 mrsas_alloc_cmd_pool(struct mrsas_instance *instance)
3112 {
3113 	int		i;
3114 	int		count;
3115 	uint32_t	max_cmd;
3116 	uint32_t	reserve_cmd;
3117 	size_t		sz;
3118 
3119 	struct mrsas_cmd	*cmd;
3120 
3121 	max_cmd = instance->max_fw_cmds;
3122 	con_log(CL_ANN1, (CE_NOTE, "mrsas_alloc_cmd_pool: "
3123 	    "max_cmd %x", max_cmd));
3124 
3125 
3126 	sz = sizeof (struct mrsas_cmd *) * max_cmd;
3127 
3128 	/*
3129 	 * instance->cmd_list is an array of struct mrsas_cmd pointers.
3130 	 * Allocate the dynamic array first and then allocate individual
3131 	 * commands.
3132 	 */
3133 	instance->cmd_list = kmem_zalloc(sz, KM_SLEEP);
3134 	ASSERT(instance->cmd_list);
3135 
3136 	/* create a frame pool and assign one frame to each cmd */
3137 	for (count = 0; count < max_cmd; count++) {
3138 		instance->cmd_list[count] =
3139 		    kmem_zalloc(sizeof (struct mrsas_cmd), KM_SLEEP);
3140 		ASSERT(instance->cmd_list[count]);
3141 	}
3142 
3143 	/* add all the commands to command pool */
3144 
3145 	INIT_LIST_HEAD(&instance->cmd_pool_list);
3146 	INIT_LIST_HEAD(&instance->cmd_pend_list);
3147 	INIT_LIST_HEAD(&instance->app_cmd_pool_list);
3148 
3149 	/*
3150 	 * When max_cmd is lower than MRSAS_APP_RESERVED_CMDS, how do I split
3151 	 * into app_cmd and regular cmd?  For now, just take
3152 	 * max(1/8th of max, 4);
3153 	 */
3154 	reserve_cmd = min(MRSAS_APP_RESERVED_CMDS,
3155 	    max(max_cmd >> 3, MRSAS_APP_MIN_RESERVED_CMDS));
3156 
3157 	for (i = 0; i < reserve_cmd; i++) {
3158 		cmd = instance->cmd_list[i];
3159 		cmd->index = i;
3160 		mlist_add_tail(&cmd->list, &instance->app_cmd_pool_list);
3161 	}
3162 
3163 
3164 	for (i = reserve_cmd; i < max_cmd; i++) {
3165 		cmd = instance->cmd_list[i];
3166 		cmd->index = i;
3167 		mlist_add_tail(&cmd->list, &instance->cmd_pool_list);
3168 	}
3169 
3170 	return (DDI_SUCCESS);
3171 
3172 mrsas_undo_cmds:
3173 	if (count > 0) {
3174 		/* free each cmd */
3175 		for (i = 0; i < count; i++) {
3176 			if (instance->cmd_list[i] != NULL) {
3177 				kmem_free(instance->cmd_list[i],
3178 				    sizeof (struct mrsas_cmd));
3179 			}
3180 			instance->cmd_list[i] = NULL;
3181 		}
3182 	}
3183 
3184 mrsas_undo_cmd_list:
3185 	if (instance->cmd_list != NULL)
3186 		kmem_free(instance->cmd_list, sz);
3187 	instance->cmd_list = NULL;
3188 
3189 	return (DDI_FAILURE);
3190 }
3191 
3192 
3193 /*
3194  * free_space_for_mfi
3195  */
3196 static void
3197 free_space_for_mfi(struct mrsas_instance *instance)
3198 {
3199 
3200 	/* already freed */
3201 	if (instance->cmd_list == NULL) {
3202 		return;
3203 	}
3204 
3205 	/* Free additional dma buffer */
3206 	free_additional_dma_buffer(instance);
3207 
3208 	/* Free the MFI frame pool */
3209 	destroy_mfi_frame_pool(instance);
3210 
3211 	/* Free all the commands in the cmd_list */
3212 	/* Free the cmd_list buffer itself */
3213 	mrsas_free_cmd_pool(instance);
3214 }
3215 
3216 /*
3217  * alloc_space_for_mfi
3218  */
3219 static int
3220 alloc_space_for_mfi(struct mrsas_instance *instance)
3221 {
3222 	/* Allocate command pool (memory for cmd_list & individual commands) */
3223 	if (mrsas_alloc_cmd_pool(instance)) {
3224 		dev_err(instance->dip, CE_WARN, "error creating cmd pool");
3225 		return (DDI_FAILURE);
3226 	}
3227 
3228 	/* Allocate MFI Frame pool */
3229 	if (create_mfi_frame_pool(instance)) {
3230 		dev_err(instance->dip, CE_WARN,
3231 		    "error creating frame DMA pool");
3232 		goto mfi_undo_cmd_pool;
3233 	}
3234 
3235 	/* Allocate additional DMA buffer */
3236 	if (alloc_additional_dma_buffer(instance)) {
3237 		dev_err(instance->dip, CE_WARN,
3238 		    "error creating frame DMA pool");
3239 		goto mfi_undo_frame_pool;
3240 	}
3241 
3242 	return (DDI_SUCCESS);
3243 
3244 mfi_undo_frame_pool:
3245 	destroy_mfi_frame_pool(instance);
3246 
3247 mfi_undo_cmd_pool:
3248 	mrsas_free_cmd_pool(instance);
3249 
3250 	return (DDI_FAILURE);
3251 }
3252 
3253 
3254 
3255 /*
3256  * get_ctrl_info
3257  */
3258 static int
3259 get_ctrl_info(struct mrsas_instance *instance,
3260     struct mrsas_ctrl_info *ctrl_info)
3261 {
3262 	int	ret = 0;
3263 
3264 	struct mrsas_cmd		*cmd;
3265 	struct mrsas_dcmd_frame	*dcmd;
3266 	struct mrsas_ctrl_info	*ci;
3267 
3268 	if (instance->tbolt) {
3269 		cmd = get_raid_msg_mfi_pkt(instance);
3270 	} else {
3271 		cmd = mrsas_get_mfi_pkt(instance);
3272 	}
3273 
3274 	if (!cmd) {
3275 		con_log(CL_ANN, (CE_WARN,
3276 		    "Failed to get a cmd for ctrl info"));
3277 		DTRACE_PROBE2(info_mfi_err, uint16_t, instance->fw_outstanding,
3278 		    uint16_t, instance->max_fw_cmds);
3279 		return (DDI_FAILURE);
3280 	}
3281 
3282 	/* Clear the frame buffer and assign back the context id */
3283 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
3284 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
3285 	    cmd->index);
3286 
3287 	dcmd = &cmd->frame->dcmd;
3288 
3289 	ci = (struct mrsas_ctrl_info *)instance->internal_buf;
3290 
3291 	if (!ci) {
3292 		dev_err(instance->dip, CE_WARN,
3293 		    "Failed to alloc mem for ctrl info");
3294 		mrsas_return_mfi_pkt(instance, cmd);
3295 		return (DDI_FAILURE);
3296 	}
3297 
3298 	(void) memset(ci, 0, sizeof (struct mrsas_ctrl_info));
3299 
3300 	/* for( i = 0; i < DCMD_MBOX_SZ; i++ ) dcmd->mbox.b[i] = 0; */
3301 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
3302 
3303 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
3304 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status,
3305 	    MFI_CMD_STATUS_POLL_MODE);
3306 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 1);
3307 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
3308 	    MFI_FRAME_DIR_READ);
3309 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
3310 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len,
3311 	    sizeof (struct mrsas_ctrl_info));
3312 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
3313 	    MR_DCMD_CTRL_GET_INFO);
3314 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].phys_addr,
3315 	    instance->internal_buf_dmac_add);
3316 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].length,
3317 	    sizeof (struct mrsas_ctrl_info));
3318 
3319 	cmd->frame_count = 1;
3320 
3321 	if (instance->tbolt) {
3322 		mr_sas_tbolt_build_mfi_cmd(instance, cmd);
3323 	}
3324 
3325 	if (!instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
3326 		ret = 0;
3327 
3328 		ctrl_info->max_request_size = ddi_get32(
3329 		    cmd->frame_dma_obj.acc_handle, &ci->max_request_size);
3330 
3331 		ctrl_info->ld_present_count = ddi_get16(
3332 		    cmd->frame_dma_obj.acc_handle, &ci->ld_present_count);
3333 
3334 		ctrl_info->properties.on_off_properties = ddi_get32(
3335 		    cmd->frame_dma_obj.acc_handle,
3336 		    &ci->properties.on_off_properties);
3337 		ddi_rep_get8(cmd->frame_dma_obj.acc_handle,
3338 		    (uint8_t *)(ctrl_info->product_name),
3339 		    (uint8_t *)(ci->product_name), 80 * sizeof (char),
3340 		    DDI_DEV_AUTOINCR);
3341 		/* should get more members of ci with ddi_get when needed */
3342 	} else {
3343 		dev_err(instance->dip, CE_WARN,
3344 		    "get_ctrl_info: Ctrl info failed");
3345 		ret = -1;
3346 	}
3347 
3348 	if (mrsas_common_check(instance, cmd) != DDI_SUCCESS) {
3349 		ret = -1;
3350 	}
3351 	if (instance->tbolt) {
3352 		return_raid_msg_mfi_pkt(instance, cmd);
3353 	} else {
3354 		mrsas_return_mfi_pkt(instance, cmd);
3355 	}
3356 
3357 	return (ret);
3358 }
3359 
3360 /*
3361  * abort_aen_cmd
3362  */
3363 static int
3364 abort_aen_cmd(struct mrsas_instance *instance,
3365     struct mrsas_cmd *cmd_to_abort)
3366 {
3367 	int	ret = 0;
3368 
3369 	struct mrsas_cmd		*cmd;
3370 	struct mrsas_abort_frame	*abort_fr;
3371 
3372 	con_log(CL_ANN1, (CE_NOTE, "chkpnt: abort_aen:%d", __LINE__));
3373 
3374 	if (instance->tbolt) {
3375 		cmd = get_raid_msg_mfi_pkt(instance);
3376 	} else {
3377 		cmd = mrsas_get_mfi_pkt(instance);
3378 	}
3379 
3380 	if (!cmd) {
3381 		con_log(CL_ANN1, (CE_WARN,
3382 		    "abort_aen_cmd():Failed to get a cmd for abort_aen_cmd"));
3383 		DTRACE_PROBE2(abort_mfi_err, uint16_t, instance->fw_outstanding,
3384 		    uint16_t, instance->max_fw_cmds);
3385 		return (DDI_FAILURE);
3386 	}
3387 
3388 	/* Clear the frame buffer and assign back the context id */
3389 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
3390 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
3391 	    cmd->index);
3392 
3393 	abort_fr = &cmd->frame->abort;
3394 
3395 	/* prepare and issue the abort frame */
3396 	ddi_put8(cmd->frame_dma_obj.acc_handle,
3397 	    &abort_fr->cmd, MFI_CMD_OP_ABORT);
3398 	ddi_put8(cmd->frame_dma_obj.acc_handle, &abort_fr->cmd_status,
3399 	    MFI_CMD_STATUS_SYNC_MODE);
3400 	ddi_put16(cmd->frame_dma_obj.acc_handle, &abort_fr->flags, 0);
3401 	ddi_put32(cmd->frame_dma_obj.acc_handle, &abort_fr->abort_context,
3402 	    cmd_to_abort->index);
3403 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3404 	    &abort_fr->abort_mfi_phys_addr_lo, cmd_to_abort->frame_phys_addr);
3405 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3406 	    &abort_fr->abort_mfi_phys_addr_hi, 0);
3407 
3408 	instance->aen_cmd->abort_aen = 1;
3409 
3410 	cmd->frame_count = 1;
3411 
3412 	if (instance->tbolt) {
3413 		mr_sas_tbolt_build_mfi_cmd(instance, cmd);
3414 	}
3415 
3416 	if (instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
3417 		con_log(CL_ANN1, (CE_WARN,
3418 		    "abort_aen_cmd: issue_cmd_in_poll_mode failed"));
3419 		ret = -1;
3420 	} else {
3421 		ret = 0;
3422 	}
3423 
3424 	instance->aen_cmd->abort_aen = 1;
3425 	instance->aen_cmd = 0;
3426 
3427 	if (instance->tbolt) {
3428 		return_raid_msg_mfi_pkt(instance, cmd);
3429 	} else {
3430 		mrsas_return_mfi_pkt(instance, cmd);
3431 	}
3432 
3433 	atomic_add_16(&instance->fw_outstanding, (-1));
3434 
3435 	return (ret);
3436 }
3437 
3438 
3439 static int
3440 mrsas_build_init_cmd(struct mrsas_instance *instance,
3441     struct mrsas_cmd **cmd_ptr)
3442 {
3443 	struct mrsas_cmd		*cmd;
3444 	struct mrsas_init_frame		*init_frame;
3445 	struct mrsas_init_queue_info	*initq_info;
3446 	struct mrsas_drv_ver		drv_ver_info;
3447 
3448 
3449 	/*
3450 	 * Prepare a init frame. Note the init frame points to queue info
3451 	 * structure. Each frame has SGL allocated after first 64 bytes. For
3452 	 * this frame - since we don't need any SGL - we use SGL's space as
3453 	 * queue info structure
3454 	 */
3455 	cmd = *cmd_ptr;
3456 
3457 
3458 	/* Clear the frame buffer and assign back the context id */
3459 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
3460 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
3461 	    cmd->index);
3462 
3463 	init_frame = (struct mrsas_init_frame *)cmd->frame;
3464 	initq_info = (struct mrsas_init_queue_info *)
3465 	    ((unsigned long)init_frame + 64);
3466 
3467 	(void) memset(init_frame, 0, MRMFI_FRAME_SIZE);
3468 	(void) memset(initq_info, 0, sizeof (struct mrsas_init_queue_info));
3469 
3470 	ddi_put32(cmd->frame_dma_obj.acc_handle, &initq_info->init_flags, 0);
3471 
3472 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3473 	    &initq_info->reply_queue_entries, instance->max_fw_cmds + 1);
3474 
3475 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3476 	    &initq_info->producer_index_phys_addr_hi, 0);
3477 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3478 	    &initq_info->producer_index_phys_addr_lo,
3479 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address);
3480 
3481 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3482 	    &initq_info->consumer_index_phys_addr_hi, 0);
3483 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3484 	    &initq_info->consumer_index_phys_addr_lo,
3485 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address + 4);
3486 
3487 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3488 	    &initq_info->reply_queue_start_phys_addr_hi, 0);
3489 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3490 	    &initq_info->reply_queue_start_phys_addr_lo,
3491 	    instance->mfi_internal_dma_obj.dma_cookie[0].dmac_address + 8);
3492 
3493 	ddi_put8(cmd->frame_dma_obj.acc_handle,
3494 	    &init_frame->cmd, MFI_CMD_OP_INIT);
3495 	ddi_put8(cmd->frame_dma_obj.acc_handle, &init_frame->cmd_status,
3496 	    MFI_CMD_STATUS_POLL_MODE);
3497 	ddi_put16(cmd->frame_dma_obj.acc_handle, &init_frame->flags, 0);
3498 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3499 	    &init_frame->queue_info_new_phys_addr_lo,
3500 	    cmd->frame_phys_addr + 64);
3501 	ddi_put32(cmd->frame_dma_obj.acc_handle,
3502 	    &init_frame->queue_info_new_phys_addr_hi, 0);
3503 
3504 
3505 	/* fill driver version information */
3506 	fill_up_drv_ver(&drv_ver_info);
3507 
3508 	/* allocate the driver version data transfer buffer */
3509 	instance->drv_ver_dma_obj.size = sizeof (drv_ver_info.drv_ver);
3510 	instance->drv_ver_dma_obj.dma_attr = mrsas_generic_dma_attr;
3511 	instance->drv_ver_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
3512 	instance->drv_ver_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
3513 	instance->drv_ver_dma_obj.dma_attr.dma_attr_sgllen = 1;
3514 	instance->drv_ver_dma_obj.dma_attr.dma_attr_align = 1;
3515 
3516 	if (mrsas_alloc_dma_obj(instance, &instance->drv_ver_dma_obj,
3517 	    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
3518 		con_log(CL_ANN, (CE_WARN,
3519 		    "init_mfi : Could not allocate driver version buffer."));
3520 		return (DDI_FAILURE);
3521 	}
3522 	/* copy driver version to dma buffer */
3523 	(void) memset(instance->drv_ver_dma_obj.buffer, 0,
3524 	    sizeof (drv_ver_info.drv_ver));
3525 	ddi_rep_put8(cmd->frame_dma_obj.acc_handle,
3526 	    (uint8_t *)drv_ver_info.drv_ver,
3527 	    (uint8_t *)instance->drv_ver_dma_obj.buffer,
3528 	    sizeof (drv_ver_info.drv_ver), DDI_DEV_AUTOINCR);
3529 
3530 
3531 	/* copy driver version physical address to init frame */
3532 	ddi_put64(cmd->frame_dma_obj.acc_handle, &init_frame->driverversion,
3533 	    instance->drv_ver_dma_obj.dma_cookie[0].dmac_address);
3534 
3535 	ddi_put32(cmd->frame_dma_obj.acc_handle, &init_frame->data_xfer_len,
3536 	    sizeof (struct mrsas_init_queue_info));
3537 
3538 	cmd->frame_count = 1;
3539 
3540 	*cmd_ptr = cmd;
3541 
3542 	return (DDI_SUCCESS);
3543 }
3544 
3545 
3546 /*
3547  * mrsas_init_adapter_ppc - Initialize MFI interface adapter.
3548  */
3549 int
3550 mrsas_init_adapter_ppc(struct mrsas_instance *instance)
3551 {
3552 	struct mrsas_cmd		*cmd;
3553 
3554 	/*
3555 	 * allocate memory for mfi adapter(cmd pool, individual commands, mfi
3556 	 * frames etc
3557 	 */
3558 	if (alloc_space_for_mfi(instance) != DDI_SUCCESS) {
3559 		con_log(CL_ANN, (CE_NOTE,
3560 		    "Error, failed to allocate memory for MFI adapter"));
3561 		return (DDI_FAILURE);
3562 	}
3563 
3564 	/* Build INIT command */
3565 	cmd = mrsas_get_mfi_pkt(instance);
3566 	if (cmd == NULL) {
3567 		DTRACE_PROBE2(init_adapter_mfi_err, uint16_t,
3568 		    instance->fw_outstanding, uint16_t, instance->max_fw_cmds);
3569 		return (DDI_FAILURE);
3570 	}
3571 
3572 	if (mrsas_build_init_cmd(instance, &cmd) != DDI_SUCCESS) {
3573 		con_log(CL_ANN,
3574 		    (CE_NOTE, "Error, failed to build INIT command"));
3575 
3576 		goto fail_undo_alloc_mfi_space;
3577 	}
3578 
3579 	/*
3580 	 * Disable interrupt before sending init frame ( see linux driver code)
3581 	 * send INIT MFI frame in polled mode
3582 	 */
3583 	if (instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
3584 		con_log(CL_ANN, (CE_WARN, "failed to init firmware"));
3585 		goto fail_fw_init;
3586 	}
3587 
3588 	if (mrsas_common_check(instance, cmd) != DDI_SUCCESS)
3589 		goto fail_fw_init;
3590 	mrsas_return_mfi_pkt(instance, cmd);
3591 
3592 	if (ctio_enable &&
3593 	    (instance->func_ptr->read_fw_status_reg(instance) & 0x04000000)) {
3594 		con_log(CL_ANN, (CE_NOTE, "mr_sas: IEEE SGL's supported"));
3595 		instance->flag_ieee = 1;
3596 	} else {
3597 		instance->flag_ieee = 0;
3598 	}
3599 
3600 	ASSERT(!instance->skinny || instance->flag_ieee);
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 	mrsas_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_app_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 && !instance->skinny) {
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 && !instance->skinny) {
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 && !instance->skinny) {
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 	/* This may also need to apply to Skinny, but for now, don't worry. */
3941 	if (!instance->tbolt && !instance->skinny) {
3942 		fw_ctrl = RD_IB_DOORBELL(instance);
3943 		con_log(CL_ANN1, (CE_CONT,
3944 		    "mfi_state_transition_to_ready:FW ctrl = 0x%x", fw_ctrl));
3945 
3946 		/*
3947 		 * Write 0xF to the doorbell register to do the following.
3948 		 * - Abort all outstanding commands (bit 0).
3949 		 * - Transition from OPERATIONAL to READY state (bit 1).
3950 		 * - Discard (possible) low MFA posted in 64-bit mode (bit-2).
3951 		 * - Set to release FW to continue running (i.e. BIOS handshake
3952 		 *   (bit 3).
3953 		 */
3954 		WR_IB_DOORBELL(0xF, instance);
3955 	}
3956 
3957 	if (mrsas_check_acc_handle(instance->regmap_handle) != DDI_SUCCESS) {
3958 		return (EIO);
3959 	}
3960 
3961 	return (DDI_SUCCESS);
3962 }
3963 
3964 /*
3965  * get_seq_num
3966  */
3967 static int
3968 get_seq_num(struct mrsas_instance *instance,
3969     struct mrsas_evt_log_info *eli)
3970 {
3971 	int	ret = DDI_SUCCESS;
3972 
3973 	dma_obj_t			dcmd_dma_obj;
3974 	struct mrsas_cmd		*cmd;
3975 	struct mrsas_dcmd_frame		*dcmd;
3976 	struct mrsas_evt_log_info *eli_tmp;
3977 	if (instance->tbolt) {
3978 		cmd = get_raid_msg_mfi_pkt(instance);
3979 	} else {
3980 		cmd = mrsas_get_mfi_pkt(instance);
3981 	}
3982 
3983 	if (!cmd) {
3984 		dev_err(instance->dip, CE_WARN, "failed to get a cmd");
3985 		DTRACE_PROBE2(seq_num_mfi_err, uint16_t,
3986 		    instance->fw_outstanding, uint16_t, instance->max_fw_cmds);
3987 		return (ENOMEM);
3988 	}
3989 
3990 	/* Clear the frame buffer and assign back the context id */
3991 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
3992 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
3993 	    cmd->index);
3994 
3995 	dcmd = &cmd->frame->dcmd;
3996 
3997 	/* allocate the data transfer buffer */
3998 	dcmd_dma_obj.size = sizeof (struct mrsas_evt_log_info);
3999 	dcmd_dma_obj.dma_attr = mrsas_generic_dma_attr;
4000 	dcmd_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
4001 	dcmd_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
4002 	dcmd_dma_obj.dma_attr.dma_attr_sgllen = 1;
4003 	dcmd_dma_obj.dma_attr.dma_attr_align = 1;
4004 
4005 	if (mrsas_alloc_dma_obj(instance, &dcmd_dma_obj,
4006 	    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
4007 		dev_err(instance->dip, CE_WARN,
4008 		    "get_seq_num: could not allocate data transfer buffer.");
4009 		return (DDI_FAILURE);
4010 	}
4011 
4012 	(void) memset(dcmd_dma_obj.buffer, 0,
4013 	    sizeof (struct mrsas_evt_log_info));
4014 
4015 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
4016 
4017 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
4018 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status, 0);
4019 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 1);
4020 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
4021 	    MFI_FRAME_DIR_READ);
4022 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
4023 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len,
4024 	    sizeof (struct mrsas_evt_log_info));
4025 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
4026 	    MR_DCMD_CTRL_EVENT_GET_INFO);
4027 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].length,
4028 	    sizeof (struct mrsas_evt_log_info));
4029 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].phys_addr,
4030 	    dcmd_dma_obj.dma_cookie[0].dmac_address);
4031 
4032 	cmd->sync_cmd = MRSAS_TRUE;
4033 	cmd->frame_count = 1;
4034 
4035 	if (instance->tbolt) {
4036 		mr_sas_tbolt_build_mfi_cmd(instance, cmd);
4037 	}
4038 
4039 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
4040 		dev_err(instance->dip, CE_WARN, "get_seq_num: "
4041 		    "failed to issue MRSAS_DCMD_CTRL_EVENT_GET_INFO");
4042 		ret = DDI_FAILURE;
4043 	} else {
4044 		eli_tmp = (struct mrsas_evt_log_info *)dcmd_dma_obj.buffer;
4045 		eli->newest_seq_num = ddi_get32(cmd->frame_dma_obj.acc_handle,
4046 		    &eli_tmp->newest_seq_num);
4047 		ret = DDI_SUCCESS;
4048 	}
4049 
4050 	if (mrsas_free_dma_obj(instance, dcmd_dma_obj) != DDI_SUCCESS)
4051 		ret = DDI_FAILURE;
4052 
4053 	if (instance->tbolt) {
4054 		return_raid_msg_mfi_pkt(instance, cmd);
4055 	} else {
4056 		mrsas_return_mfi_pkt(instance, cmd);
4057 	}
4058 
4059 	return (ret);
4060 }
4061 
4062 /*
4063  * start_mfi_aen
4064  */
4065 static int
4066 start_mfi_aen(struct mrsas_instance *instance)
4067 {
4068 	int	ret = 0;
4069 
4070 	struct mrsas_evt_log_info	eli;
4071 	union mrsas_evt_class_locale	class_locale;
4072 
4073 	/* get the latest sequence number from FW */
4074 	(void) memset(&eli, 0, sizeof (struct mrsas_evt_log_info));
4075 
4076 	if (get_seq_num(instance, &eli)) {
4077 		dev_err(instance->dip, CE_WARN,
4078 		    "start_mfi_aen: failed to get seq num");
4079 		return (-1);
4080 	}
4081 
4082 	/* register AEN with FW for latest sequence number plus 1 */
4083 	class_locale.members.reserved	= 0;
4084 	class_locale.members.locale	= LE_16(MR_EVT_LOCALE_ALL);
4085 	class_locale.members.class	= MR_EVT_CLASS_INFO;
4086 	class_locale.word	= LE_32(class_locale.word);
4087 	ret = register_mfi_aen(instance, eli.newest_seq_num + 1,
4088 	    class_locale.word);
4089 
4090 	if (ret) {
4091 		dev_err(instance->dip, CE_WARN,
4092 		    "start_mfi_aen: aen registration failed");
4093 		return (-1);
4094 	}
4095 
4096 
4097 	return (ret);
4098 }
4099 
4100 /*
4101  * flush_cache
4102  */
4103 static void
4104 flush_cache(struct mrsas_instance *instance)
4105 {
4106 	struct mrsas_cmd		*cmd = NULL;
4107 	struct mrsas_dcmd_frame		*dcmd;
4108 	if (instance->tbolt) {
4109 		cmd = get_raid_msg_mfi_pkt(instance);
4110 	} else {
4111 		cmd = mrsas_get_mfi_pkt(instance);
4112 	}
4113 
4114 	if (!cmd) {
4115 		con_log(CL_ANN1, (CE_WARN,
4116 		    "flush_cache():Failed to get a cmd for flush_cache"));
4117 		DTRACE_PROBE2(flush_cache_err, uint16_t,
4118 		    instance->fw_outstanding, uint16_t, instance->max_fw_cmds);
4119 		return;
4120 	}
4121 
4122 	/* Clear the frame buffer and assign back the context id */
4123 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
4124 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
4125 	    cmd->index);
4126 
4127 	dcmd = &cmd->frame->dcmd;
4128 
4129 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
4130 
4131 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
4132 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status, 0x0);
4133 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 0);
4134 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
4135 	    MFI_FRAME_DIR_NONE);
4136 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
4137 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len, 0);
4138 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
4139 	    MR_DCMD_CTRL_CACHE_FLUSH);
4140 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->mbox.b[0],
4141 	    MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE);
4142 
4143 	cmd->frame_count = 1;
4144 
4145 	if (instance->tbolt) {
4146 		mr_sas_tbolt_build_mfi_cmd(instance, cmd);
4147 	}
4148 
4149 	if (instance->func_ptr->issue_cmd_in_poll_mode(instance, cmd)) {
4150 		con_log(CL_ANN1, (CE_WARN,
4151 	    "flush_cache: failed to issue MFI_DCMD_CTRL_CACHE_FLUSH"));
4152 	}
4153 	con_log(CL_ANN1, (CE_CONT, "flush_cache done"));
4154 	if (instance->tbolt) {
4155 		return_raid_msg_mfi_pkt(instance, cmd);
4156 	} else {
4157 		mrsas_return_mfi_pkt(instance, cmd);
4158 	}
4159 
4160 }
4161 
4162 /*
4163  * service_mfi_aen-	Completes an AEN command
4164  * @instance:			Adapter soft state
4165  * @cmd:			Command to be completed
4166  *
4167  */
4168 void
4169 service_mfi_aen(struct mrsas_instance *instance, struct mrsas_cmd *cmd)
4170 {
4171 	uint32_t	seq_num;
4172 	struct mrsas_evt_detail *evt_detail =
4173 	    (struct mrsas_evt_detail *)instance->mfi_evt_detail_obj.buffer;
4174 	int		rval = 0;
4175 	int		tgt = 0;
4176 	uint8_t		dtype;
4177 #ifdef PDSUPPORT
4178 	mrsas_pd_address_t	*pd_addr;
4179 #endif
4180 	ddi_acc_handle_t		acc_handle;
4181 
4182 	con_log(CL_ANN, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
4183 
4184 	acc_handle = cmd->frame_dma_obj.acc_handle;
4185 	cmd->cmd_status = ddi_get8(acc_handle, &cmd->frame->io.cmd_status);
4186 	if (cmd->cmd_status == ENODATA) {
4187 		cmd->cmd_status = 0;
4188 	}
4189 
4190 	/*
4191 	 * log the MFI AEN event to the sysevent queue so that
4192 	 * application will get noticed
4193 	 */
4194 	if (ddi_log_sysevent(instance->dip, DDI_VENDOR_LSI, "LSIMEGA", "SAS",
4195 	    NULL, NULL, DDI_NOSLEEP) != DDI_SUCCESS) {
4196 		int	instance_no = ddi_get_instance(instance->dip);
4197 		con_log(CL_ANN, (CE_WARN,
4198 		    "mr_sas%d: Failed to log AEN event", instance_no));
4199 	}
4200 	/*
4201 	 * Check for any ld devices that has changed state. i.e. online
4202 	 * or offline.
4203 	 */
4204 	con_log(CL_ANN1, (CE_CONT,
4205 	    "AEN: code = %x class = %x locale = %x args = %x",
4206 	    ddi_get32(acc_handle, &evt_detail->code),
4207 	    evt_detail->cl.members.class,
4208 	    ddi_get16(acc_handle, &evt_detail->cl.members.locale),
4209 	    ddi_get8(acc_handle, &evt_detail->arg_type)));
4210 
4211 	switch (ddi_get32(acc_handle, &evt_detail->code)) {
4212 	case MR_EVT_CFG_CLEARED: {
4213 		for (tgt = 0; tgt < MRDRV_MAX_LD; tgt++) {
4214 			if (instance->mr_ld_list[tgt].dip != NULL) {
4215 				mutex_enter(&instance->config_dev_mtx);
4216 				instance->mr_ld_list[tgt].flag =
4217 				    (uint8_t)~MRDRV_TGT_VALID;
4218 				mutex_exit(&instance->config_dev_mtx);
4219 				rval = mrsas_service_evt(instance, tgt, 0,
4220 				    MRSAS_EVT_UNCONFIG_TGT, NULL);
4221 				con_log(CL_ANN1, (CE_WARN,
4222 				    "mr_sas: CFG CLEARED AEN rval = %d "
4223 				    "tgt id = %d", rval, tgt));
4224 			}
4225 		}
4226 		break;
4227 	}
4228 
4229 	case MR_EVT_LD_DELETED: {
4230 		tgt = ddi_get16(acc_handle, &evt_detail->args.ld.target_id);
4231 		mutex_enter(&instance->config_dev_mtx);
4232 		instance->mr_ld_list[tgt].flag = (uint8_t)~MRDRV_TGT_VALID;
4233 		mutex_exit(&instance->config_dev_mtx);
4234 		rval = mrsas_service_evt(instance,
4235 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id), 0,
4236 		    MRSAS_EVT_UNCONFIG_TGT, NULL);
4237 		con_log(CL_ANN1, (CE_WARN, "mr_sas: LD DELETED AEN rval = %d "
4238 		    "tgt id = %d index = %d", rval,
4239 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id),
4240 		    ddi_get8(acc_handle, &evt_detail->args.ld.ld_index)));
4241 		break;
4242 	} /* End of MR_EVT_LD_DELETED */
4243 
4244 	case MR_EVT_LD_CREATED: {
4245 		rval = mrsas_service_evt(instance,
4246 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id), 0,
4247 		    MRSAS_EVT_CONFIG_TGT, NULL);
4248 		con_log(CL_ANN1, (CE_WARN, "mr_sas: LD CREATED AEN rval = %d "
4249 		    "tgt id = %d index = %d", rval,
4250 		    ddi_get16(acc_handle, &evt_detail->args.ld.target_id),
4251 		    ddi_get8(acc_handle, &evt_detail->args.ld.ld_index)));
4252 		break;
4253 	} /* End of MR_EVT_LD_CREATED */
4254 
4255 #ifdef PDSUPPORT
4256 	case MR_EVT_PD_REMOVED_EXT: {
4257 		if (instance->tbolt || instance->skinny) {
4258 			pd_addr = &evt_detail->args.pd_addr;
4259 			dtype = pd_addr->scsi_dev_type;
4260 			con_log(CL_DLEVEL1, (CE_NOTE,
4261 			    " MR_EVT_PD_REMOVED_EXT: dtype = %x,"
4262 			    " arg_type = %d ", dtype, evt_detail->arg_type));
4263 			tgt = ddi_get16(acc_handle,
4264 			    &evt_detail->args.pd.device_id);
4265 			mutex_enter(&instance->config_dev_mtx);
4266 			instance->mr_tbolt_pd_list[tgt].flag =
4267 			    (uint8_t)~MRDRV_TGT_VALID;
4268 			mutex_exit(&instance->config_dev_mtx);
4269 			rval = mrsas_service_evt(instance, ddi_get16(
4270 			    acc_handle, &evt_detail->args.pd.device_id),
4271 			    1, MRSAS_EVT_UNCONFIG_TGT, NULL);
4272 			con_log(CL_ANN1, (CE_WARN, "mr_sas: PD_REMOVED:"
4273 			    "rval = %d tgt id = %d ", rval,
4274 			    ddi_get16(acc_handle,
4275 			    &evt_detail->args.pd.device_id)));
4276 		}
4277 		break;
4278 	} /* End of MR_EVT_PD_REMOVED_EXT */
4279 
4280 	case MR_EVT_PD_INSERTED_EXT: {
4281 		if (instance->tbolt || instance->skinny) {
4282 			rval = mrsas_service_evt(instance,
4283 			    ddi_get16(acc_handle,
4284 			    &evt_detail->args.pd.device_id),
4285 			    1, MRSAS_EVT_CONFIG_TGT, NULL);
4286 			con_log(CL_ANN1, (CE_WARN, "mr_sas: PD_INSERTEDi_EXT:"
4287 			    "rval = %d tgt id = %d ", rval,
4288 			    ddi_get16(acc_handle,
4289 			    &evt_detail->args.pd.device_id)));
4290 		}
4291 		break;
4292 	} /* End of MR_EVT_PD_INSERTED_EXT */
4293 
4294 	case MR_EVT_PD_STATE_CHANGE: {
4295 		if (instance->tbolt || instance->skinny) {
4296 			tgt = ddi_get16(acc_handle,
4297 			    &evt_detail->args.pd.device_id);
4298 			if ((evt_detail->args.pd_state.prevState ==
4299 			    PD_SYSTEM) &&
4300 			    (evt_detail->args.pd_state.newState != PD_SYSTEM)) {
4301 				mutex_enter(&instance->config_dev_mtx);
4302 				instance->mr_tbolt_pd_list[tgt].flag =
4303 				    (uint8_t)~MRDRV_TGT_VALID;
4304 				mutex_exit(&instance->config_dev_mtx);
4305 				rval = mrsas_service_evt(instance,
4306 				    ddi_get16(acc_handle,
4307 				    &evt_detail->args.pd.device_id),
4308 				    1, MRSAS_EVT_UNCONFIG_TGT, NULL);
4309 				con_log(CL_ANN1, (CE_WARN, "mr_sas: PD_REMOVED:"
4310 				    "rval = %d tgt id = %d ", rval,
4311 				    ddi_get16(acc_handle,
4312 				    &evt_detail->args.pd.device_id)));
4313 				break;
4314 			}
4315 			if ((evt_detail->args.pd_state.prevState
4316 			    == UNCONFIGURED_GOOD) &&
4317 			    (evt_detail->args.pd_state.newState == PD_SYSTEM)) {
4318 				rval = mrsas_service_evt(instance,
4319 				    ddi_get16(acc_handle,
4320 				    &evt_detail->args.pd.device_id),
4321 				    1, MRSAS_EVT_CONFIG_TGT, NULL);
4322 				con_log(CL_ANN1, (CE_WARN,
4323 				    "mr_sas: PD_INSERTED: rval = %d "
4324 				    " tgt id = %d ", rval,
4325 				    ddi_get16(acc_handle,
4326 				    &evt_detail->args.pd.device_id)));
4327 				break;
4328 			}
4329 		}
4330 		break;
4331 	}
4332 #endif
4333 
4334 	} /* End of Main Switch */
4335 
4336 	/* get copy of seq_num and class/locale for re-registration */
4337 	seq_num = ddi_get32(acc_handle, &evt_detail->seq_num);
4338 	seq_num++;
4339 	(void) memset(instance->mfi_evt_detail_obj.buffer, 0,
4340 	    sizeof (struct mrsas_evt_detail));
4341 
4342 	ddi_put8(acc_handle, &cmd->frame->dcmd.cmd_status, 0x0);
4343 	ddi_put32(acc_handle, &cmd->frame->dcmd.mbox.w[0], seq_num);
4344 
4345 	instance->aen_seq_num = seq_num;
4346 
4347 	cmd->frame_count = 1;
4348 
4349 	cmd->retry_count_for_ocr = 0;
4350 	cmd->drv_pkt_time = 0;
4351 
4352 	/* Issue the aen registration frame */
4353 	instance->func_ptr->issue_cmd(cmd, instance);
4354 }
4355 
4356 /*
4357  * complete_cmd_in_sync_mode -	Completes an internal command
4358  * @instance:			Adapter soft state
4359  * @cmd:			Command to be completed
4360  *
4361  * The issue_cmd_in_sync_mode() function waits for a command to complete
4362  * after it issues a command. This function wakes up that waiting routine by
4363  * calling wake_up() on the wait queue.
4364  */
4365 static void
4366 complete_cmd_in_sync_mode(struct mrsas_instance *instance,
4367     struct mrsas_cmd *cmd)
4368 {
4369 	cmd->cmd_status = ddi_get8(cmd->frame_dma_obj.acc_handle,
4370 	    &cmd->frame->io.cmd_status);
4371 
4372 	cmd->sync_cmd = MRSAS_FALSE;
4373 
4374 	con_log(CL_ANN1, (CE_NOTE, "complete_cmd_in_sync_mode called %p \n",
4375 	    (void *)cmd));
4376 
4377 	mutex_enter(&instance->int_cmd_mtx);
4378 	if (cmd->cmd_status == ENODATA) {
4379 		cmd->cmd_status = 0;
4380 	}
4381 	cv_broadcast(&instance->int_cmd_cv);
4382 	mutex_exit(&instance->int_cmd_mtx);
4383 
4384 }
4385 
4386 /*
4387  * Call this function inside mrsas_softintr.
4388  * mrsas_initiate_ocr_if_fw_is_faulty  - Initiates OCR if FW status is faulty
4389  * @instance:			Adapter soft state
4390  */
4391 
4392 static uint32_t
4393 mrsas_initiate_ocr_if_fw_is_faulty(struct mrsas_instance *instance)
4394 {
4395 	uint32_t	cur_abs_reg_val;
4396 	uint32_t	fw_state;
4397 
4398 	cur_abs_reg_val =  instance->func_ptr->read_fw_status_reg(instance);
4399 	fw_state = cur_abs_reg_val & MFI_STATE_MASK;
4400 	if (fw_state == MFI_STATE_FAULT) {
4401 		if (instance->disable_online_ctrl_reset == 1) {
4402 			dev_err(instance->dip, CE_WARN,
4403 			    "mrsas_initiate_ocr_if_fw_is_faulty: "
4404 			    "FW in Fault state, detected in ISR: "
4405 			    "FW doesn't support ocr ");
4406 
4407 			return (ADAPTER_RESET_NOT_REQUIRED);
4408 		} else {
4409 			con_log(CL_ANN, (CE_NOTE,
4410 			    "mrsas_initiate_ocr_if_fw_is_faulty: FW in Fault "
4411 			    "state, detected in ISR: FW supports ocr "));
4412 
4413 			return (ADAPTER_RESET_REQUIRED);
4414 		}
4415 	}
4416 
4417 	return (ADAPTER_RESET_NOT_REQUIRED);
4418 }
4419 
4420 /*
4421  * mrsas_softintr - The Software ISR
4422  * @param arg	: HBA soft state
4423  *
4424  * called from high-level interrupt if hi-level interrupt are not there,
4425  * otherwise triggered as a soft interrupt
4426  */
4427 static uint_t
4428 mrsas_softintr(struct mrsas_instance *instance)
4429 {
4430 	struct scsi_pkt		*pkt;
4431 	struct scsa_cmd		*acmd;
4432 	struct mrsas_cmd	*cmd;
4433 	struct mlist_head	*pos, *next;
4434 	mlist_t			process_list;
4435 	struct mrsas_header	*hdr;
4436 	struct scsi_arq_status	*arqstat;
4437 
4438 	con_log(CL_ANN1, (CE_NOTE, "mrsas_softintr() called."));
4439 
4440 	ASSERT(instance);
4441 
4442 	mutex_enter(&instance->completed_pool_mtx);
4443 
4444 	if (mlist_empty(&instance->completed_pool_list)) {
4445 		mutex_exit(&instance->completed_pool_mtx);
4446 		return (DDI_INTR_CLAIMED);
4447 	}
4448 
4449 	instance->softint_running = 1;
4450 
4451 	INIT_LIST_HEAD(&process_list);
4452 	mlist_splice(&instance->completed_pool_list, &process_list);
4453 	INIT_LIST_HEAD(&instance->completed_pool_list);
4454 
4455 	mutex_exit(&instance->completed_pool_mtx);
4456 
4457 	/* perform all callbacks first, before releasing the SCBs */
4458 	mlist_for_each_safe(pos, next, &process_list) {
4459 		cmd = mlist_entry(pos, struct mrsas_cmd, list);
4460 
4461 		/* syncronize the Cmd frame for the controller */
4462 		(void) ddi_dma_sync(cmd->frame_dma_obj.dma_handle,
4463 		    0, 0, DDI_DMA_SYNC_FORCPU);
4464 
4465 		if (mrsas_check_dma_handle(cmd->frame_dma_obj.dma_handle) !=
4466 		    DDI_SUCCESS) {
4467 			mrsas_fm_ereport(instance, DDI_FM_DEVICE_NO_RESPONSE);
4468 			ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
4469 			con_log(CL_ANN1, (CE_WARN,
4470 			    "mrsas_softintr: "
4471 			    "FMA check reports DMA handle failure"));
4472 			return (DDI_INTR_CLAIMED);
4473 		}
4474 
4475 		hdr = &cmd->frame->hdr;
4476 
4477 		/* remove the internal command from the process list */
4478 		mlist_del_init(&cmd->list);
4479 
4480 		switch (ddi_get8(cmd->frame_dma_obj.acc_handle, &hdr->cmd)) {
4481 		case MFI_CMD_OP_PD_SCSI:
4482 		case MFI_CMD_OP_LD_SCSI:
4483 		case MFI_CMD_OP_LD_READ:
4484 		case MFI_CMD_OP_LD_WRITE:
4485 			/*
4486 			 * MFI_CMD_OP_PD_SCSI and MFI_CMD_OP_LD_SCSI
4487 			 * could have been issued either through an
4488 			 * IO path or an IOCTL path. If it was via IOCTL,
4489 			 * we will send it to internal completion.
4490 			 */
4491 			if (cmd->sync_cmd == MRSAS_TRUE) {
4492 				complete_cmd_in_sync_mode(instance, cmd);
4493 				break;
4494 			}
4495 
4496 			/* regular commands */
4497 			acmd =	cmd->cmd;
4498 			pkt =	CMD2PKT(acmd);
4499 
4500 			if (acmd->cmd_flags & CFLAG_DMAVALID) {
4501 				if (acmd->cmd_flags & CFLAG_CONSISTENT) {
4502 					(void) ddi_dma_sync(acmd->cmd_dmahandle,
4503 					    acmd->cmd_dma_offset,
4504 					    acmd->cmd_dma_len,
4505 					    DDI_DMA_SYNC_FORCPU);
4506 				}
4507 			}
4508 
4509 			pkt->pkt_reason		= CMD_CMPLT;
4510 			pkt->pkt_statistics	= 0;
4511 			pkt->pkt_state = STATE_GOT_BUS
4512 			    | STATE_GOT_TARGET | STATE_SENT_CMD
4513 			    | STATE_XFERRED_DATA | STATE_GOT_STATUS;
4514 
4515 			con_log(CL_ANN, (CE_CONT,
4516 			    "CDB[0] = %x completed for %s: size %lx context %x",
4517 			    pkt->pkt_cdbp[0], ((acmd->islogical) ? "LD" : "PD"),
4518 			    acmd->cmd_dmacount, hdr->context));
4519 			DTRACE_PROBE3(softintr_cdb, uint8_t, pkt->pkt_cdbp[0],
4520 			    uint_t, acmd->cmd_cdblen, ulong_t,
4521 			    acmd->cmd_dmacount);
4522 
4523 			if (pkt->pkt_cdbp[0] == SCMD_INQUIRY) {
4524 				struct scsi_inquiry	*inq;
4525 
4526 				if (acmd->cmd_dmacount != 0) {
4527 					bp_mapin(acmd->cmd_buf);
4528 					inq = (struct scsi_inquiry *)
4529 					    acmd->cmd_buf->b_un.b_addr;
4530 
4531 #ifdef PDSUPPORT
4532 					if (hdr->cmd_status == MFI_STAT_OK) {
4533 						display_scsi_inquiry(
4534 						    (caddr_t)inq);
4535 					}
4536 #else
4537 					/* don't expose physical drives to OS */
4538 					if (acmd->islogical &&
4539 					    (hdr->cmd_status == MFI_STAT_OK)) {
4540 						display_scsi_inquiry(
4541 						    (caddr_t)inq);
4542 					} else if ((hdr->cmd_status ==
4543 					    MFI_STAT_OK) && inq->inq_dtype ==
4544 					    DTYPE_DIRECT) {
4545 
4546 						display_scsi_inquiry(
4547 						    (caddr_t)inq);
4548 
4549 						/* for physical disk */
4550 						hdr->cmd_status =
4551 						    MFI_STAT_DEVICE_NOT_FOUND;
4552 					}
4553 #endif /* PDSUPPORT */
4554 				}
4555 			}
4556 
4557 			DTRACE_PROBE2(softintr_done, uint8_t, hdr->cmd,
4558 			    uint8_t, hdr->cmd_status);
4559 
4560 			switch (hdr->cmd_status) {
4561 			case MFI_STAT_OK:
4562 				pkt->pkt_scbp[0] = STATUS_GOOD;
4563 				break;
4564 			case MFI_STAT_LD_CC_IN_PROGRESS:
4565 			case MFI_STAT_LD_RECON_IN_PROGRESS:
4566 				pkt->pkt_scbp[0] = STATUS_GOOD;
4567 				break;
4568 			case MFI_STAT_LD_INIT_IN_PROGRESS:
4569 				con_log(CL_ANN,
4570 				    (CE_WARN, "Initialization in Progress"));
4571 				pkt->pkt_reason	= CMD_TRAN_ERR;
4572 
4573 				break;
4574 			case MFI_STAT_SCSI_DONE_WITH_ERROR:
4575 				con_log(CL_ANN, (CE_CONT, "scsi_done error"));
4576 
4577 				pkt->pkt_reason	= CMD_CMPLT;
4578 				((struct scsi_status *)
4579 				    pkt->pkt_scbp)->sts_chk = 1;
4580 
4581 				if (pkt->pkt_cdbp[0] == SCMD_TEST_UNIT_READY) {
4582 					con_log(CL_ANN,
4583 					    (CE_WARN, "TEST_UNIT_READY fail"));
4584 				} else {
4585 					pkt->pkt_state |= STATE_ARQ_DONE;
4586 					arqstat = (void *)(pkt->pkt_scbp);
4587 					arqstat->sts_rqpkt_reason = CMD_CMPLT;
4588 					arqstat->sts_rqpkt_resid = 0;
4589 					arqstat->sts_rqpkt_state |=
4590 					    STATE_GOT_BUS | STATE_GOT_TARGET
4591 					    | STATE_SENT_CMD
4592 					    | STATE_XFERRED_DATA;
4593 					*(uint8_t *)&arqstat->sts_rqpkt_status =
4594 					    STATUS_GOOD;
4595 					ddi_rep_get8(
4596 					    cmd->frame_dma_obj.acc_handle,
4597 					    (uint8_t *)
4598 					    &(arqstat->sts_sensedata),
4599 					    cmd->sense,
4600 					    sizeof (struct scsi_extended_sense),
4601 					    DDI_DEV_AUTOINCR);
4602 				}
4603 				break;
4604 			case MFI_STAT_LD_OFFLINE:
4605 			case MFI_STAT_DEVICE_NOT_FOUND:
4606 				con_log(CL_ANN, (CE_CONT,
4607 				"mrsas_softintr:device not found error"));
4608 				pkt->pkt_reason	= CMD_DEV_GONE;
4609 				pkt->pkt_statistics  = STAT_DISCON;
4610 				break;
4611 			case MFI_STAT_LD_LBA_OUT_OF_RANGE:
4612 				pkt->pkt_state |= STATE_ARQ_DONE;
4613 				pkt->pkt_reason	= CMD_CMPLT;
4614 				((struct scsi_status *)
4615 				    pkt->pkt_scbp)->sts_chk = 1;
4616 
4617 				arqstat = (void *)(pkt->pkt_scbp);
4618 				arqstat->sts_rqpkt_reason = CMD_CMPLT;
4619 				arqstat->sts_rqpkt_resid = 0;
4620 				arqstat->sts_rqpkt_state |= STATE_GOT_BUS
4621 				    | STATE_GOT_TARGET | STATE_SENT_CMD
4622 				    | STATE_XFERRED_DATA;
4623 				*(uint8_t *)&arqstat->sts_rqpkt_status =
4624 				    STATUS_GOOD;
4625 
4626 				arqstat->sts_sensedata.es_valid = 1;
4627 				arqstat->sts_sensedata.es_key =
4628 				    KEY_ILLEGAL_REQUEST;
4629 				arqstat->sts_sensedata.es_class =
4630 				    CLASS_EXTENDED_SENSE;
4631 
4632 				/*
4633 				 * LOGICAL BLOCK ADDRESS OUT OF RANGE:
4634 				 * ASC: 0x21h; ASCQ: 0x00h;
4635 				 */
4636 				arqstat->sts_sensedata.es_add_code = 0x21;
4637 				arqstat->sts_sensedata.es_qual_code = 0x00;
4638 
4639 				break;
4640 
4641 			default:
4642 				con_log(CL_ANN, (CE_CONT, "Unknown status!"));
4643 				pkt->pkt_reason	= CMD_TRAN_ERR;
4644 
4645 				break;
4646 			}
4647 
4648 			atomic_add_16(&instance->fw_outstanding, (-1));
4649 
4650 			(void) mrsas_common_check(instance, cmd);
4651 
4652 			if (acmd->cmd_dmahandle) {
4653 				if (mrsas_check_dma_handle(
4654 				    acmd->cmd_dmahandle) != DDI_SUCCESS) {
4655 					ddi_fm_service_impact(instance->dip,
4656 					    DDI_SERVICE_UNAFFECTED);
4657 					pkt->pkt_reason = CMD_TRAN_ERR;
4658 					pkt->pkt_statistics = 0;
4659 				}
4660 			}
4661 
4662 			mrsas_return_mfi_pkt(instance, cmd);
4663 
4664 			/* Call the callback routine */
4665 			if (((pkt->pkt_flags & FLAG_NOINTR) == 0) &&
4666 			    pkt->pkt_comp) {
4667 				(*pkt->pkt_comp)(pkt);
4668 			}
4669 
4670 			break;
4671 
4672 		case MFI_CMD_OP_SMP:
4673 		case MFI_CMD_OP_STP:
4674 			complete_cmd_in_sync_mode(instance, cmd);
4675 			break;
4676 
4677 		case MFI_CMD_OP_DCMD:
4678 			/* see if got an event notification */
4679 			if (ddi_get32(cmd->frame_dma_obj.acc_handle,
4680 			    &cmd->frame->dcmd.opcode) ==
4681 			    MR_DCMD_CTRL_EVENT_WAIT) {
4682 				if ((instance->aen_cmd == cmd) &&
4683 				    (instance->aen_cmd->abort_aen)) {
4684 					con_log(CL_ANN, (CE_WARN,
4685 					    "mrsas_softintr: "
4686 					    "aborted_aen returned"));
4687 				} else {
4688 					atomic_add_16(&instance->fw_outstanding,
4689 					    (-1));
4690 					service_mfi_aen(instance, cmd);
4691 				}
4692 			} else {
4693 				complete_cmd_in_sync_mode(instance, cmd);
4694 			}
4695 
4696 			break;
4697 
4698 		case MFI_CMD_OP_ABORT:
4699 			con_log(CL_ANN, (CE_NOTE, "MFI_CMD_OP_ABORT complete"));
4700 			/*
4701 			 * MFI_CMD_OP_ABORT successfully completed
4702 			 * in the synchronous mode
4703 			 */
4704 			complete_cmd_in_sync_mode(instance, cmd);
4705 			break;
4706 
4707 		default:
4708 			mrsas_fm_ereport(instance, DDI_FM_DEVICE_NO_RESPONSE);
4709 			ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
4710 
4711 			if (cmd->pkt != NULL) {
4712 				pkt = cmd->pkt;
4713 				if (((pkt->pkt_flags & FLAG_NOINTR) == 0) &&
4714 				    pkt->pkt_comp) {
4715 
4716 					con_log(CL_ANN1, (CE_CONT, "posting to "
4717 					    "scsa cmd %p index %x pkt %p"
4718 					    "time %llx, default ", (void *)cmd,
4719 					    cmd->index, (void *)pkt,
4720 					    gethrtime()));
4721 
4722 					(*pkt->pkt_comp)(pkt);
4723 
4724 				}
4725 			}
4726 			con_log(CL_ANN, (CE_WARN, "Cmd type unknown !"));
4727 			break;
4728 		}
4729 	}
4730 
4731 	instance->softint_running = 0;
4732 
4733 	return (DDI_INTR_CLAIMED);
4734 }
4735 
4736 /*
4737  * mrsas_alloc_dma_obj
4738  *
4739  * Allocate the memory and other resources for an dma object.
4740  */
4741 int
4742 mrsas_alloc_dma_obj(struct mrsas_instance *instance, dma_obj_t *obj,
4743     uchar_t endian_flags)
4744 {
4745 	int	i;
4746 	size_t	alen = 0;
4747 	uint_t	cookie_cnt;
4748 	struct ddi_device_acc_attr tmp_endian_attr;
4749 
4750 	tmp_endian_attr = endian_attr;
4751 	tmp_endian_attr.devacc_attr_endian_flags = endian_flags;
4752 	tmp_endian_attr.devacc_attr_access = DDI_DEFAULT_ACC;
4753 
4754 	i = ddi_dma_alloc_handle(instance->dip, &obj->dma_attr,
4755 	    DDI_DMA_SLEEP, NULL, &obj->dma_handle);
4756 	if (i != DDI_SUCCESS) {
4757 
4758 		switch (i) {
4759 			case DDI_DMA_BADATTR :
4760 				con_log(CL_ANN, (CE_WARN,
4761 				"Failed ddi_dma_alloc_handle- Bad attribute"));
4762 				break;
4763 			case DDI_DMA_NORESOURCES :
4764 				con_log(CL_ANN, (CE_WARN,
4765 				"Failed ddi_dma_alloc_handle- No Resources"));
4766 				break;
4767 			default :
4768 				con_log(CL_ANN, (CE_WARN,
4769 				"Failed ddi_dma_alloc_handle: "
4770 				"unknown status %d", i));
4771 				break;
4772 		}
4773 
4774 		return (-1);
4775 	}
4776 
4777 	if ((ddi_dma_mem_alloc(obj->dma_handle, obj->size, &tmp_endian_attr,
4778 	    DDI_DMA_RDWR | DDI_DMA_STREAMING, DDI_DMA_SLEEP, NULL,
4779 	    &obj->buffer, &alen, &obj->acc_handle) != DDI_SUCCESS) ||
4780 	    alen < obj->size) {
4781 
4782 		ddi_dma_free_handle(&obj->dma_handle);
4783 
4784 		con_log(CL_ANN, (CE_WARN, "Failed : ddi_dma_mem_alloc"));
4785 
4786 		return (-1);
4787 	}
4788 
4789 	if (ddi_dma_addr_bind_handle(obj->dma_handle, NULL, obj->buffer,
4790 	    obj->size, DDI_DMA_RDWR | DDI_DMA_STREAMING, DDI_DMA_SLEEP,
4791 	    NULL, &obj->dma_cookie[0], &cookie_cnt) != DDI_SUCCESS) {
4792 
4793 		ddi_dma_mem_free(&obj->acc_handle);
4794 		ddi_dma_free_handle(&obj->dma_handle);
4795 
4796 		con_log(CL_ANN, (CE_WARN, "Failed : ddi_dma_addr_bind_handle"));
4797 
4798 		return (-1);
4799 	}
4800 
4801 	if (mrsas_check_dma_handle(obj->dma_handle) != DDI_SUCCESS) {
4802 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
4803 		return (-1);
4804 	}
4805 
4806 	if (mrsas_check_acc_handle(obj->acc_handle) != DDI_SUCCESS) {
4807 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
4808 		return (-1);
4809 	}
4810 
4811 	return (cookie_cnt);
4812 }
4813 
4814 /*
4815  * mrsas_free_dma_obj(struct mrsas_instance *, dma_obj_t)
4816  *
4817  * De-allocate the memory and other resources for an dma object, which must
4818  * have been alloated by a previous call to mrsas_alloc_dma_obj()
4819  */
4820 int
4821 mrsas_free_dma_obj(struct mrsas_instance *instance, dma_obj_t obj)
4822 {
4823 
4824 	if ((obj.dma_handle == NULL) || (obj.acc_handle == NULL)) {
4825 		return (DDI_SUCCESS);
4826 	}
4827 
4828 	/*
4829 	 * NOTE: These check-handle functions fail if *_handle == NULL, but
4830 	 * this function succeeds because of the previous check.
4831 	 */
4832 	if (mrsas_check_dma_handle(obj.dma_handle) != DDI_SUCCESS) {
4833 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
4834 		return (DDI_FAILURE);
4835 	}
4836 
4837 	if (mrsas_check_acc_handle(obj.acc_handle) != DDI_SUCCESS) {
4838 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
4839 		return (DDI_FAILURE);
4840 	}
4841 
4842 	(void) ddi_dma_unbind_handle(obj.dma_handle);
4843 	ddi_dma_mem_free(&obj.acc_handle);
4844 	ddi_dma_free_handle(&obj.dma_handle);
4845 	obj.acc_handle = NULL;
4846 	return (DDI_SUCCESS);
4847 }
4848 
4849 /*
4850  * mrsas_dma_alloc(instance_t *, struct scsi_pkt *, struct buf *,
4851  * int, int (*)())
4852  *
4853  * Allocate dma resources for a new scsi command
4854  */
4855 int
4856 mrsas_dma_alloc(struct mrsas_instance *instance, struct scsi_pkt *pkt,
4857     struct buf *bp, int flags, int (*callback)())
4858 {
4859 	int	dma_flags;
4860 	int	(*cb)(caddr_t);
4861 	int	i;
4862 
4863 	ddi_dma_attr_t	tmp_dma_attr = mrsas_generic_dma_attr;
4864 	struct scsa_cmd	*acmd = PKT2CMD(pkt);
4865 
4866 	acmd->cmd_buf = bp;
4867 
4868 	if (bp->b_flags & B_READ) {
4869 		acmd->cmd_flags &= ~CFLAG_DMASEND;
4870 		dma_flags = DDI_DMA_READ;
4871 	} else {
4872 		acmd->cmd_flags |= CFLAG_DMASEND;
4873 		dma_flags = DDI_DMA_WRITE;
4874 	}
4875 
4876 	if (flags & PKT_CONSISTENT) {
4877 		acmd->cmd_flags |= CFLAG_CONSISTENT;
4878 		dma_flags |= DDI_DMA_CONSISTENT;
4879 	}
4880 
4881 	if (flags & PKT_DMA_PARTIAL) {
4882 		dma_flags |= DDI_DMA_PARTIAL;
4883 	}
4884 
4885 	dma_flags |= DDI_DMA_REDZONE;
4886 
4887 	cb = (callback == NULL_FUNC) ? DDI_DMA_DONTWAIT : DDI_DMA_SLEEP;
4888 
4889 	tmp_dma_attr.dma_attr_sgllen = instance->max_num_sge;
4890 	tmp_dma_attr.dma_attr_addr_hi = 0xffffffffffffffffull;
4891 	if (instance->tbolt) {
4892 		/* OCR-RESET FIX */
4893 		tmp_dma_attr.dma_attr_count_max =
4894 		    (U64)mrsas_tbolt_max_cap_maxxfer;  /* limit to 256K */
4895 		tmp_dma_attr.dma_attr_maxxfer =
4896 		    (U64)mrsas_tbolt_max_cap_maxxfer;  /* limit to 256K */
4897 	}
4898 
4899 	if ((i = ddi_dma_alloc_handle(instance->dip, &tmp_dma_attr,
4900 	    cb, 0, &acmd->cmd_dmahandle)) != DDI_SUCCESS) {
4901 		switch (i) {
4902 		case DDI_DMA_BADATTR:
4903 			bioerror(bp, EFAULT);
4904 			return (DDI_FAILURE);
4905 
4906 		case DDI_DMA_NORESOURCES:
4907 			bioerror(bp, 0);
4908 			return (DDI_FAILURE);
4909 
4910 		default:
4911 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_alloc_handle: "
4912 			    "impossible result (0x%x)", i));
4913 			bioerror(bp, EFAULT);
4914 			return (DDI_FAILURE);
4915 		}
4916 	}
4917 
4918 	i = ddi_dma_buf_bind_handle(acmd->cmd_dmahandle, bp, dma_flags,
4919 	    cb, 0, &acmd->cmd_dmacookies[0], &acmd->cmd_ncookies);
4920 
4921 	switch (i) {
4922 	case DDI_DMA_PARTIAL_MAP:
4923 		if ((dma_flags & DDI_DMA_PARTIAL) == 0) {
4924 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_buf_bind_handle: "
4925 			    "DDI_DMA_PARTIAL_MAP impossible"));
4926 			goto no_dma_cookies;
4927 		}
4928 
4929 		if (ddi_dma_numwin(acmd->cmd_dmahandle, &acmd->cmd_nwin) ==
4930 		    DDI_FAILURE) {
4931 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_numwin failed"));
4932 			goto no_dma_cookies;
4933 		}
4934 
4935 		if (ddi_dma_getwin(acmd->cmd_dmahandle, acmd->cmd_curwin,
4936 		    &acmd->cmd_dma_offset, &acmd->cmd_dma_len,
4937 		    &acmd->cmd_dmacookies[0], &acmd->cmd_ncookies) ==
4938 		    DDI_FAILURE) {
4939 
4940 			con_log(CL_ANN, (CE_PANIC, "ddi_dma_getwin failed"));
4941 			goto no_dma_cookies;
4942 		}
4943 
4944 		goto get_dma_cookies;
4945 	case DDI_DMA_MAPPED:
4946 		acmd->cmd_nwin = 1;
4947 		acmd->cmd_dma_len = 0;
4948 		acmd->cmd_dma_offset = 0;
4949 
4950 get_dma_cookies:
4951 		i = 0;
4952 		acmd->cmd_dmacount = 0;
4953 		for (;;) {
4954 			acmd->cmd_dmacount +=
4955 			    acmd->cmd_dmacookies[i++].dmac_size;
4956 
4957 			if (i == instance->max_num_sge ||
4958 			    i == acmd->cmd_ncookies)
4959 				break;
4960 
4961 			ddi_dma_nextcookie(acmd->cmd_dmahandle,
4962 			    &acmd->cmd_dmacookies[i]);
4963 		}
4964 
4965 		acmd->cmd_cookie = i;
4966 		acmd->cmd_cookiecnt = i;
4967 
4968 		acmd->cmd_flags |= CFLAG_DMAVALID;
4969 
4970 		if (bp->b_bcount >= acmd->cmd_dmacount) {
4971 			pkt->pkt_resid = bp->b_bcount - acmd->cmd_dmacount;
4972 		} else {
4973 			pkt->pkt_resid = 0;
4974 		}
4975 
4976 		return (DDI_SUCCESS);
4977 	case DDI_DMA_NORESOURCES:
4978 		bioerror(bp, 0);
4979 		break;
4980 	case DDI_DMA_NOMAPPING:
4981 		bioerror(bp, EFAULT);
4982 		break;
4983 	case DDI_DMA_TOOBIG:
4984 		bioerror(bp, EINVAL);
4985 		break;
4986 	case DDI_DMA_INUSE:
4987 		con_log(CL_ANN, (CE_PANIC, "ddi_dma_buf_bind_handle:"
4988 		    " DDI_DMA_INUSE impossible"));
4989 		break;
4990 	default:
4991 		con_log(CL_ANN, (CE_PANIC, "ddi_dma_buf_bind_handle: "
4992 		    "impossible result (0x%x)", i));
4993 		break;
4994 	}
4995 
4996 no_dma_cookies:
4997 	ddi_dma_free_handle(&acmd->cmd_dmahandle);
4998 	acmd->cmd_dmahandle = NULL;
4999 	acmd->cmd_flags &= ~CFLAG_DMAVALID;
5000 	return (DDI_FAILURE);
5001 }
5002 
5003 /*
5004  * mrsas_dma_move(struct mrsas_instance *, struct scsi_pkt *, struct buf *)
5005  *
5006  * move dma resources to next dma window
5007  *
5008  */
5009 int
5010 mrsas_dma_move(struct mrsas_instance *instance, struct scsi_pkt *pkt,
5011     struct buf *bp)
5012 {
5013 	int	i = 0;
5014 
5015 	struct scsa_cmd	*acmd = PKT2CMD(pkt);
5016 
5017 	/*
5018 	 * If there are no more cookies remaining in this window,
5019 	 * must move to the next window first.
5020 	 */
5021 	if (acmd->cmd_cookie == acmd->cmd_ncookies) {
5022 		if (acmd->cmd_curwin == acmd->cmd_nwin && acmd->cmd_nwin == 1) {
5023 			return (DDI_SUCCESS);
5024 		}
5025 
5026 		/* at last window, cannot move */
5027 		if (++acmd->cmd_curwin >= acmd->cmd_nwin) {
5028 			return (DDI_FAILURE);
5029 		}
5030 
5031 		if (ddi_dma_getwin(acmd->cmd_dmahandle, acmd->cmd_curwin,
5032 		    &acmd->cmd_dma_offset, &acmd->cmd_dma_len,
5033 		    &acmd->cmd_dmacookies[0], &acmd->cmd_ncookies) ==
5034 		    DDI_FAILURE) {
5035 			return (DDI_FAILURE);
5036 		}
5037 
5038 		acmd->cmd_cookie = 0;
5039 	} else {
5040 		/* still more cookies in this window - get the next one */
5041 		ddi_dma_nextcookie(acmd->cmd_dmahandle,
5042 		    &acmd->cmd_dmacookies[0]);
5043 	}
5044 
5045 	/* get remaining cookies in this window, up to our maximum */
5046 	for (;;) {
5047 		acmd->cmd_dmacount += acmd->cmd_dmacookies[i++].dmac_size;
5048 		acmd->cmd_cookie++;
5049 
5050 		if (i == instance->max_num_sge ||
5051 		    acmd->cmd_cookie == acmd->cmd_ncookies) {
5052 			break;
5053 		}
5054 
5055 		ddi_dma_nextcookie(acmd->cmd_dmahandle,
5056 		    &acmd->cmd_dmacookies[i]);
5057 	}
5058 
5059 	acmd->cmd_cookiecnt = i;
5060 
5061 	if (bp->b_bcount >= acmd->cmd_dmacount) {
5062 		pkt->pkt_resid = bp->b_bcount - acmd->cmd_dmacount;
5063 	} else {
5064 		pkt->pkt_resid = 0;
5065 	}
5066 
5067 	return (DDI_SUCCESS);
5068 }
5069 
5070 /*
5071  * build_cmd
5072  */
5073 static struct mrsas_cmd *
5074 build_cmd(struct mrsas_instance *instance, struct scsi_address *ap,
5075     struct scsi_pkt *pkt, uchar_t *cmd_done)
5076 {
5077 	uint16_t	flags = 0;
5078 	uint32_t	i;
5079 	uint32_t	context;
5080 	uint32_t	sge_bytes;
5081 	uint32_t	tmp_data_xfer_len;
5082 	ddi_acc_handle_t acc_handle;
5083 	struct mrsas_cmd		*cmd;
5084 	struct mrsas_sge64		*mfi_sgl;
5085 	struct mrsas_sge_ieee		*mfi_sgl_ieee;
5086 	struct scsa_cmd			*acmd = PKT2CMD(pkt);
5087 	struct mrsas_pthru_frame	*pthru;
5088 	struct mrsas_io_frame		*ldio;
5089 
5090 	/* find out if this is logical or physical drive command.  */
5091 	acmd->islogical = MRDRV_IS_LOGICAL(ap);
5092 	acmd->device_id = MAP_DEVICE_ID(instance, ap);
5093 	*cmd_done = 0;
5094 
5095 	/* get the command packet */
5096 	if (!(cmd = mrsas_get_mfi_pkt(instance))) {
5097 		DTRACE_PROBE2(build_cmd_mfi_err, uint16_t,
5098 		    instance->fw_outstanding, uint16_t, instance->max_fw_cmds);
5099 		return (NULL);
5100 	}
5101 
5102 	acc_handle = cmd->frame_dma_obj.acc_handle;
5103 
5104 	/* Clear the frame buffer and assign back the context id */
5105 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
5106 	ddi_put32(acc_handle, &cmd->frame->hdr.context, cmd->index);
5107 
5108 	cmd->pkt = pkt;
5109 	cmd->cmd = acmd;
5110 	DTRACE_PROBE3(build_cmds, uint8_t, pkt->pkt_cdbp[0],
5111 	    ulong_t, acmd->cmd_dmacount, ulong_t, acmd->cmd_dma_len);
5112 
5113 	/* lets get the command directions */
5114 	if (acmd->cmd_flags & CFLAG_DMASEND) {
5115 		flags = MFI_FRAME_DIR_WRITE;
5116 
5117 		if (acmd->cmd_flags & CFLAG_CONSISTENT) {
5118 			(void) ddi_dma_sync(acmd->cmd_dmahandle,
5119 			    acmd->cmd_dma_offset, acmd->cmd_dma_len,
5120 			    DDI_DMA_SYNC_FORDEV);
5121 		}
5122 	} else if (acmd->cmd_flags & ~CFLAG_DMASEND) {
5123 		flags = MFI_FRAME_DIR_READ;
5124 
5125 		if (acmd->cmd_flags & CFLAG_CONSISTENT) {
5126 			(void) ddi_dma_sync(acmd->cmd_dmahandle,
5127 			    acmd->cmd_dma_offset, acmd->cmd_dma_len,
5128 			    DDI_DMA_SYNC_FORCPU);
5129 		}
5130 	} else {
5131 		flags = MFI_FRAME_DIR_NONE;
5132 	}
5133 
5134 	if (instance->flag_ieee) {
5135 		flags |= MFI_FRAME_IEEE;
5136 	}
5137 	flags |= MFI_FRAME_SGL64;
5138 
5139 	switch (pkt->pkt_cdbp[0]) {
5140 
5141 	/*
5142 	 * case SCMD_SYNCHRONIZE_CACHE:
5143 	 *	flush_cache(instance);
5144 	 *	mrsas_return_mfi_pkt(instance, cmd);
5145 	 *	*cmd_done = 1;
5146 	 *
5147 	 *	return (NULL);
5148 	 */
5149 
5150 	case SCMD_READ:
5151 	case SCMD_WRITE:
5152 	case SCMD_READ_G1:
5153 	case SCMD_WRITE_G1:
5154 	case SCMD_READ_G4:
5155 	case SCMD_WRITE_G4:
5156 	case SCMD_READ_G5:
5157 	case SCMD_WRITE_G5:
5158 		if (acmd->islogical) {
5159 			ldio = (struct mrsas_io_frame *)cmd->frame;
5160 
5161 			/*
5162 			 * preare the Logical IO frame:
5163 			 * 2nd bit is zero for all read cmds
5164 			 */
5165 			ddi_put8(acc_handle, &ldio->cmd,
5166 			    (pkt->pkt_cdbp[0] & 0x02) ? MFI_CMD_OP_LD_WRITE
5167 			    : MFI_CMD_OP_LD_READ);
5168 			ddi_put8(acc_handle, &ldio->cmd_status, 0x0);
5169 			ddi_put8(acc_handle, &ldio->scsi_status, 0x0);
5170 			ddi_put8(acc_handle, &ldio->target_id, acmd->device_id);
5171 			ddi_put16(acc_handle, &ldio->timeout, 0);
5172 			ddi_put8(acc_handle, &ldio->reserved_0, 0);
5173 			ddi_put16(acc_handle, &ldio->pad_0, 0);
5174 			ddi_put16(acc_handle, &ldio->flags, flags);
5175 
5176 			/* Initialize sense Information */
5177 			bzero(cmd->sense, SENSE_LENGTH);
5178 			ddi_put8(acc_handle, &ldio->sense_len, SENSE_LENGTH);
5179 			ddi_put32(acc_handle, &ldio->sense_buf_phys_addr_hi, 0);
5180 			ddi_put32(acc_handle, &ldio->sense_buf_phys_addr_lo,
5181 			    cmd->sense_phys_addr);
5182 			ddi_put32(acc_handle, &ldio->start_lba_hi, 0);
5183 			ddi_put8(acc_handle, &ldio->access_byte,
5184 			    (acmd->cmd_cdblen != 6) ? pkt->pkt_cdbp[1] : 0);
5185 			ddi_put8(acc_handle, &ldio->sge_count,
5186 			    acmd->cmd_cookiecnt);
5187 			if (instance->flag_ieee) {
5188 				mfi_sgl_ieee =
5189 				    (struct mrsas_sge_ieee *)&ldio->sgl;
5190 			} else {
5191 				mfi_sgl = (struct mrsas_sge64	*)&ldio->sgl;
5192 			}
5193 
5194 			context = ddi_get32(acc_handle, &ldio->context);
5195 
5196 			if (acmd->cmd_cdblen == CDB_GROUP0) {
5197 				/* 6-byte cdb */
5198 				ddi_put32(acc_handle, &ldio->lba_count, (
5199 				    (uint16_t)(pkt->pkt_cdbp[4])));
5200 
5201 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
5202 				    ((uint32_t)(pkt->pkt_cdbp[3])) |
5203 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 8) |
5204 				    ((uint32_t)((pkt->pkt_cdbp[1]) & 0x1F)
5205 				    << 16)));
5206 			} else if (acmd->cmd_cdblen == CDB_GROUP1) {
5207 				/* 10-byte cdb */
5208 				ddi_put32(acc_handle, &ldio->lba_count, (
5209 				    ((uint16_t)(pkt->pkt_cdbp[8])) |
5210 				    ((uint16_t)(pkt->pkt_cdbp[7]) << 8)));
5211 
5212 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
5213 				    ((uint32_t)(pkt->pkt_cdbp[5])) |
5214 				    ((uint32_t)(pkt->pkt_cdbp[4]) << 8) |
5215 				    ((uint32_t)(pkt->pkt_cdbp[3]) << 16) |
5216 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 24)));
5217 			} else if (acmd->cmd_cdblen == CDB_GROUP5) {
5218 				/* 12-byte cdb */
5219 				ddi_put32(acc_handle, &ldio->lba_count, (
5220 				    ((uint32_t)(pkt->pkt_cdbp[9])) |
5221 				    ((uint32_t)(pkt->pkt_cdbp[8]) << 8) |
5222 				    ((uint32_t)(pkt->pkt_cdbp[7]) << 16) |
5223 				    ((uint32_t)(pkt->pkt_cdbp[6]) << 24)));
5224 
5225 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
5226 				    ((uint32_t)(pkt->pkt_cdbp[5])) |
5227 				    ((uint32_t)(pkt->pkt_cdbp[4]) << 8) |
5228 				    ((uint32_t)(pkt->pkt_cdbp[3]) << 16) |
5229 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 24)));
5230 			} else if (acmd->cmd_cdblen == CDB_GROUP4) {
5231 				/* 16-byte cdb */
5232 				ddi_put32(acc_handle, &ldio->lba_count, (
5233 				    ((uint32_t)(pkt->pkt_cdbp[13])) |
5234 				    ((uint32_t)(pkt->pkt_cdbp[12]) << 8) |
5235 				    ((uint32_t)(pkt->pkt_cdbp[11]) << 16) |
5236 				    ((uint32_t)(pkt->pkt_cdbp[10]) << 24)));
5237 
5238 				ddi_put32(acc_handle, &ldio->start_lba_lo, (
5239 				    ((uint32_t)(pkt->pkt_cdbp[9])) |
5240 				    ((uint32_t)(pkt->pkt_cdbp[8]) << 8) |
5241 				    ((uint32_t)(pkt->pkt_cdbp[7]) << 16) |
5242 				    ((uint32_t)(pkt->pkt_cdbp[6]) << 24)));
5243 
5244 				ddi_put32(acc_handle, &ldio->start_lba_hi, (
5245 				    ((uint32_t)(pkt->pkt_cdbp[5])) |
5246 				    ((uint32_t)(pkt->pkt_cdbp[4]) << 8) |
5247 				    ((uint32_t)(pkt->pkt_cdbp[3]) << 16) |
5248 				    ((uint32_t)(pkt->pkt_cdbp[2]) << 24)));
5249 			}
5250 
5251 			break;
5252 		}
5253 		/* fall through For all non-rd/wr and physical disk cmds */
5254 	default:
5255 
5256 		switch (pkt->pkt_cdbp[0]) {
5257 		case SCMD_MODE_SENSE:
5258 		case SCMD_MODE_SENSE_G1: {
5259 			union scsi_cdb	*cdbp;
5260 			uint16_t	page_code;
5261 
5262 			cdbp = (void *)pkt->pkt_cdbp;
5263 			page_code = (uint16_t)cdbp->cdb_un.sg.scsi[0];
5264 			switch (page_code) {
5265 			case 0x3:
5266 			case 0x4:
5267 				(void) mrsas_mode_sense_build(pkt);
5268 				mrsas_return_mfi_pkt(instance, cmd);
5269 				*cmd_done = 1;
5270 				return (NULL);
5271 			}
5272 			break;
5273 		}
5274 		default:
5275 			break;
5276 		}
5277 
5278 		pthru	= (struct mrsas_pthru_frame *)cmd->frame;
5279 
5280 		/* prepare the DCDB frame */
5281 		ddi_put8(acc_handle, &pthru->cmd, (acmd->islogical) ?
5282 		    MFI_CMD_OP_LD_SCSI : MFI_CMD_OP_PD_SCSI);
5283 		ddi_put8(acc_handle, &pthru->cmd_status, 0x0);
5284 		ddi_put8(acc_handle, &pthru->scsi_status, 0x0);
5285 		ddi_put8(acc_handle, &pthru->target_id, acmd->device_id);
5286 		ddi_put8(acc_handle, &pthru->lun, 0);
5287 		ddi_put8(acc_handle, &pthru->cdb_len, acmd->cmd_cdblen);
5288 		ddi_put16(acc_handle, &pthru->timeout, 0);
5289 		ddi_put16(acc_handle, &pthru->flags, flags);
5290 		tmp_data_xfer_len = 0;
5291 		for (i = 0; i < acmd->cmd_cookiecnt; i++) {
5292 			tmp_data_xfer_len += acmd->cmd_dmacookies[i].dmac_size;
5293 		}
5294 		ddi_put32(acc_handle, &pthru->data_xfer_len,
5295 		    tmp_data_xfer_len);
5296 		ddi_put8(acc_handle, &pthru->sge_count, acmd->cmd_cookiecnt);
5297 		if (instance->flag_ieee) {
5298 			mfi_sgl_ieee = (struct mrsas_sge_ieee *)&pthru->sgl;
5299 		} else {
5300 			mfi_sgl	= (struct mrsas_sge64 *)&pthru->sgl;
5301 		}
5302 
5303 		bzero(cmd->sense, SENSE_LENGTH);
5304 		ddi_put8(acc_handle, &pthru->sense_len, SENSE_LENGTH);
5305 		ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_hi, 0);
5306 		ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_lo,
5307 		    cmd->sense_phys_addr);
5308 
5309 		context = ddi_get32(acc_handle, &pthru->context);
5310 		ddi_rep_put8(acc_handle, (uint8_t *)pkt->pkt_cdbp,
5311 		    (uint8_t *)pthru->cdb, acmd->cmd_cdblen, DDI_DEV_AUTOINCR);
5312 
5313 		break;
5314 	}
5315 #ifdef lint
5316 	context = context;
5317 #endif
5318 	/* prepare the scatter-gather list for the firmware */
5319 	if (instance->flag_ieee) {
5320 		for (i = 0; i < acmd->cmd_cookiecnt; i++, mfi_sgl_ieee++) {
5321 			ddi_put64(acc_handle, &mfi_sgl_ieee->phys_addr,
5322 			    acmd->cmd_dmacookies[i].dmac_laddress);
5323 			ddi_put32(acc_handle, &mfi_sgl_ieee->length,
5324 			    acmd->cmd_dmacookies[i].dmac_size);
5325 		}
5326 		sge_bytes = sizeof (struct mrsas_sge_ieee)*acmd->cmd_cookiecnt;
5327 	} else {
5328 		for (i = 0; i < acmd->cmd_cookiecnt; i++, mfi_sgl++) {
5329 			ddi_put64(acc_handle, &mfi_sgl->phys_addr,
5330 			    acmd->cmd_dmacookies[i].dmac_laddress);
5331 			ddi_put32(acc_handle, &mfi_sgl->length,
5332 			    acmd->cmd_dmacookies[i].dmac_size);
5333 		}
5334 		sge_bytes = sizeof (struct mrsas_sge64)*acmd->cmd_cookiecnt;
5335 	}
5336 
5337 	cmd->frame_count = (sge_bytes / MRMFI_FRAME_SIZE) +
5338 	    ((sge_bytes % MRMFI_FRAME_SIZE) ? 1 : 0) + 1;
5339 
5340 	if (cmd->frame_count >= 8) {
5341 		cmd->frame_count = 8;
5342 	}
5343 
5344 	return (cmd);
5345 }
5346 
5347 /*
5348  * wait_for_outstanding -	Wait for all outstanding cmds
5349  * @instance:				Adapter soft state
5350  *
5351  * This function waits for upto MRDRV_RESET_WAIT_TIME seconds for FW to
5352  * complete all its outstanding commands. Returns error if one or more IOs
5353  * are pending after this time period.
5354  */
5355 static int
5356 wait_for_outstanding(struct mrsas_instance *instance)
5357 {
5358 	int		i;
5359 	uint32_t	wait_time = 90;
5360 
5361 	for (i = 0; i < wait_time; i++) {
5362 		if (!instance->fw_outstanding) {
5363 			break;
5364 		}
5365 
5366 		drv_usecwait(MILLISEC); /* wait for 1000 usecs */;
5367 	}
5368 
5369 	if (instance->fw_outstanding) {
5370 		return (1);
5371 	}
5372 
5373 	return (0);
5374 }
5375 
5376 /*
5377  * issue_mfi_pthru
5378  */
5379 static int
5380 issue_mfi_pthru(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
5381     struct mrsas_cmd *cmd, int mode)
5382 {
5383 	void		*ubuf;
5384 	uint32_t	kphys_addr = 0;
5385 	uint32_t	xferlen = 0;
5386 	uint32_t	new_xfer_length = 0;
5387 	uint_t		model;
5388 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
5389 	dma_obj_t			pthru_dma_obj;
5390 	struct mrsas_pthru_frame	*kpthru;
5391 	struct mrsas_pthru_frame	*pthru;
5392 	int i;
5393 	pthru = &cmd->frame->pthru;
5394 	kpthru = (struct mrsas_pthru_frame *)&ioctl->frame[0];
5395 
5396 	if (instance->adapterresetinprogress) {
5397 		con_log(CL_ANN1, (CE_WARN, "issue_mfi_pthru: Reset flag set, "
5398 		"returning mfi_pkt and setting TRAN_BUSY\n"));
5399 		return (DDI_FAILURE);
5400 	}
5401 	model = ddi_model_convert_from(mode & FMODELS);
5402 	if (model == DDI_MODEL_ILP32) {
5403 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_pthru: DDI_MODEL_LP32"));
5404 
5405 		xferlen	= kpthru->sgl.sge32[0].length;
5406 
5407 		ubuf	= (void *)(ulong_t)kpthru->sgl.sge32[0].phys_addr;
5408 	} else {
5409 #ifdef _ILP32
5410 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_pthru: DDI_MODEL_LP32"));
5411 		xferlen	= kpthru->sgl.sge32[0].length;
5412 		ubuf	= (void *)(ulong_t)kpthru->sgl.sge32[0].phys_addr;
5413 #else
5414 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_pthru: DDI_MODEL_LP64"));
5415 		xferlen	= kpthru->sgl.sge64[0].length;
5416 		ubuf	= (void *)(ulong_t)kpthru->sgl.sge64[0].phys_addr;
5417 #endif
5418 	}
5419 
5420 	if (xferlen) {
5421 		/* means IOCTL requires DMA */
5422 		/* allocate the data transfer buffer */
5423 		/* pthru_dma_obj.size = xferlen; */
5424 		MRSAS_GET_BOUNDARY_ALIGNED_LEN(xferlen, new_xfer_length,
5425 		    PAGESIZE);
5426 		pthru_dma_obj.size = new_xfer_length;
5427 		pthru_dma_obj.dma_attr = mrsas_generic_dma_attr;
5428 		pthru_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
5429 		pthru_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
5430 		pthru_dma_obj.dma_attr.dma_attr_sgllen = 1;
5431 		pthru_dma_obj.dma_attr.dma_attr_align = 1;
5432 
5433 		/* allocate kernel buffer for DMA */
5434 		if (mrsas_alloc_dma_obj(instance, &pthru_dma_obj,
5435 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
5436 			con_log(CL_ANN, (CE_WARN, "issue_mfi_pthru: "
5437 			    "could not allocate data transfer buffer."));
5438 			return (DDI_FAILURE);
5439 		}
5440 		(void) memset(pthru_dma_obj.buffer, 0, xferlen);
5441 
5442 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
5443 		if (kpthru->flags & MFI_FRAME_DIR_WRITE) {
5444 			for (i = 0; i < xferlen; i++) {
5445 				if (ddi_copyin((uint8_t *)ubuf+i,
5446 				    (uint8_t *)pthru_dma_obj.buffer+i,
5447 				    1, mode)) {
5448 					con_log(CL_ANN, (CE_WARN,
5449 					    "issue_mfi_pthru : "
5450 					    "copy from user space failed"));
5451 					return (DDI_FAILURE);
5452 				}
5453 			}
5454 		}
5455 
5456 		kphys_addr = pthru_dma_obj.dma_cookie[0].dmac_address;
5457 	}
5458 
5459 	ddi_put8(acc_handle, &pthru->cmd, kpthru->cmd);
5460 	ddi_put8(acc_handle, &pthru->sense_len, SENSE_LENGTH);
5461 	ddi_put8(acc_handle, &pthru->cmd_status, 0);
5462 	ddi_put8(acc_handle, &pthru->scsi_status, 0);
5463 	ddi_put8(acc_handle, &pthru->target_id, kpthru->target_id);
5464 	ddi_put8(acc_handle, &pthru->lun, kpthru->lun);
5465 	ddi_put8(acc_handle, &pthru->cdb_len, kpthru->cdb_len);
5466 	ddi_put8(acc_handle, &pthru->sge_count, kpthru->sge_count);
5467 	ddi_put16(acc_handle, &pthru->timeout, kpthru->timeout);
5468 	ddi_put32(acc_handle, &pthru->data_xfer_len, kpthru->data_xfer_len);
5469 
5470 	ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_hi, 0);
5471 	pthru->sense_buf_phys_addr_lo = cmd->sense_phys_addr;
5472 	/* ddi_put32(acc_handle, &pthru->sense_buf_phys_addr_lo, 0); */
5473 
5474 	ddi_rep_put8(acc_handle, (uint8_t *)kpthru->cdb, (uint8_t *)pthru->cdb,
5475 	    pthru->cdb_len, DDI_DEV_AUTOINCR);
5476 
5477 	ddi_put16(acc_handle, &pthru->flags, kpthru->flags & ~MFI_FRAME_SGL64);
5478 	ddi_put32(acc_handle, &pthru->sgl.sge32[0].length, xferlen);
5479 	ddi_put32(acc_handle, &pthru->sgl.sge32[0].phys_addr, kphys_addr);
5480 
5481 	cmd->sync_cmd = MRSAS_TRUE;
5482 	cmd->frame_count = 1;
5483 
5484 	if (instance->tbolt) {
5485 		mr_sas_tbolt_build_mfi_cmd(instance, cmd);
5486 	}
5487 
5488 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
5489 		con_log(CL_ANN, (CE_WARN,
5490 		    "issue_mfi_pthru: fw_ioctl failed"));
5491 	} else {
5492 		if (xferlen && kpthru->flags & MFI_FRAME_DIR_READ) {
5493 			for (i = 0; i < xferlen; i++) {
5494 				if (ddi_copyout(
5495 				    (uint8_t *)pthru_dma_obj.buffer+i,
5496 				    (uint8_t *)ubuf+i, 1, mode)) {
5497 					con_log(CL_ANN, (CE_WARN,
5498 					    "issue_mfi_pthru : "
5499 					    "copy to user space failed"));
5500 					return (DDI_FAILURE);
5501 				}
5502 			}
5503 		}
5504 	}
5505 
5506 	kpthru->cmd_status = ddi_get8(acc_handle, &pthru->cmd_status);
5507 	kpthru->scsi_status = ddi_get8(acc_handle, &pthru->scsi_status);
5508 
5509 	con_log(CL_ANN, (CE_CONT, "issue_mfi_pthru: cmd_status %x, "
5510 	    "scsi_status %x", kpthru->cmd_status, kpthru->scsi_status));
5511 	DTRACE_PROBE3(issue_pthru, uint8_t, kpthru->cmd, uint8_t,
5512 	    kpthru->cmd_status, uint8_t, kpthru->scsi_status);
5513 
5514 	if (kpthru->sense_len) {
5515 		uint_t sense_len = SENSE_LENGTH;
5516 		void *sense_ubuf =
5517 		    (void *)(ulong_t)kpthru->sense_buf_phys_addr_lo;
5518 		if (kpthru->sense_len <= SENSE_LENGTH) {
5519 			sense_len = kpthru->sense_len;
5520 		}
5521 
5522 		for (i = 0; i < sense_len; i++) {
5523 			if (ddi_copyout(
5524 			    (uint8_t *)cmd->sense+i,
5525 			    (uint8_t *)sense_ubuf+i, 1, mode)) {
5526 				con_log(CL_ANN, (CE_WARN,
5527 				    "issue_mfi_pthru : "
5528 				    "copy to user space failed"));
5529 			}
5530 			con_log(CL_DLEVEL1, (CE_WARN,
5531 			    "Copying Sense info sense_buff[%d] = 0x%X",
5532 			    i, *((uint8_t *)cmd->sense + i)));
5533 		}
5534 	}
5535 	(void) ddi_dma_sync(cmd->frame_dma_obj.dma_handle, 0, 0,
5536 	    DDI_DMA_SYNC_FORDEV);
5537 
5538 	if (xferlen) {
5539 		/* free kernel buffer */
5540 		if (mrsas_free_dma_obj(instance, pthru_dma_obj) != DDI_SUCCESS)
5541 			return (DDI_FAILURE);
5542 	}
5543 
5544 	return (DDI_SUCCESS);
5545 }
5546 
5547 /*
5548  * issue_mfi_dcmd
5549  */
5550 static int
5551 issue_mfi_dcmd(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
5552     struct mrsas_cmd *cmd, int mode)
5553 {
5554 	void		*ubuf;
5555 	uint32_t	kphys_addr = 0;
5556 	uint32_t	xferlen = 0;
5557 	uint32_t	new_xfer_length = 0;
5558 	uint32_t	model;
5559 	dma_obj_t	dcmd_dma_obj;
5560 	struct mrsas_dcmd_frame	*kdcmd;
5561 	struct mrsas_dcmd_frame	*dcmd;
5562 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
5563 	int i;
5564 	dcmd = &cmd->frame->dcmd;
5565 	kdcmd = (struct mrsas_dcmd_frame *)&ioctl->frame[0];
5566 
5567 	if (instance->adapterresetinprogress) {
5568 		con_log(CL_ANN1, (CE_NOTE, "Reset flag set, "
5569 		"returning mfi_pkt and setting TRAN_BUSY"));
5570 		return (DDI_FAILURE);
5571 	}
5572 	model = ddi_model_convert_from(mode & FMODELS);
5573 	if (model == DDI_MODEL_ILP32) {
5574 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_dcmd: DDI_MODEL_ILP32"));
5575 
5576 		xferlen	= kdcmd->sgl.sge32[0].length;
5577 
5578 		ubuf	= (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
5579 	} else {
5580 #ifdef _ILP32
5581 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_dcmd: DDI_MODEL_ILP32"));
5582 		xferlen	= kdcmd->sgl.sge32[0].length;
5583 		ubuf	= (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
5584 #else
5585 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_dcmd: DDI_MODEL_LP64"));
5586 		xferlen	= kdcmd->sgl.sge64[0].length;
5587 		ubuf	= (void *)(ulong_t)kdcmd->sgl.sge64[0].phys_addr;
5588 #endif
5589 	}
5590 	if (xferlen) {
5591 		/* means IOCTL requires DMA */
5592 		/* allocate the data transfer buffer */
5593 		/* dcmd_dma_obj.size = xferlen; */
5594 		MRSAS_GET_BOUNDARY_ALIGNED_LEN(xferlen, new_xfer_length,
5595 		    PAGESIZE);
5596 		dcmd_dma_obj.size = new_xfer_length;
5597 		dcmd_dma_obj.dma_attr = mrsas_generic_dma_attr;
5598 		dcmd_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
5599 		dcmd_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
5600 		dcmd_dma_obj.dma_attr.dma_attr_sgllen = 1;
5601 		dcmd_dma_obj.dma_attr.dma_attr_align = 1;
5602 
5603 		/* allocate kernel buffer for DMA */
5604 			if (mrsas_alloc_dma_obj(instance, &dcmd_dma_obj,
5605 			    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
5606 				con_log(CL_ANN,
5607 				    (CE_WARN, "issue_mfi_dcmd: could not "
5608 				    "allocate data transfer buffer."));
5609 				return (DDI_FAILURE);
5610 			}
5611 		(void) memset(dcmd_dma_obj.buffer, 0, xferlen);
5612 
5613 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
5614 		if (kdcmd->flags & MFI_FRAME_DIR_WRITE) {
5615 			for (i = 0; i < xferlen; i++) {
5616 				if (ddi_copyin((uint8_t *)ubuf + i,
5617 				    (uint8_t *)dcmd_dma_obj.buffer + i,
5618 				    1, mode)) {
5619 					con_log(CL_ANN, (CE_WARN,
5620 					    "issue_mfi_dcmd : "
5621 					    "copy from user space failed"));
5622 					return (DDI_FAILURE);
5623 				}
5624 			}
5625 		}
5626 
5627 		kphys_addr = dcmd_dma_obj.dma_cookie[0].dmac_address;
5628 	}
5629 
5630 	ddi_put8(acc_handle, &dcmd->cmd, kdcmd->cmd);
5631 	ddi_put8(acc_handle, &dcmd->cmd_status, 0);
5632 	ddi_put8(acc_handle, &dcmd->sge_count, kdcmd->sge_count);
5633 	ddi_put16(acc_handle, &dcmd->timeout, kdcmd->timeout);
5634 	ddi_put32(acc_handle, &dcmd->data_xfer_len, kdcmd->data_xfer_len);
5635 	ddi_put32(acc_handle, &dcmd->opcode, kdcmd->opcode);
5636 
5637 	ddi_rep_put8(acc_handle, (uint8_t *)kdcmd->mbox.b,
5638 	    (uint8_t *)dcmd->mbox.b, DCMD_MBOX_SZ, DDI_DEV_AUTOINCR);
5639 
5640 	ddi_put16(acc_handle, &dcmd->flags, kdcmd->flags & ~MFI_FRAME_SGL64);
5641 	ddi_put32(acc_handle, &dcmd->sgl.sge32[0].length, xferlen);
5642 	ddi_put32(acc_handle, &dcmd->sgl.sge32[0].phys_addr, kphys_addr);
5643 
5644 	cmd->sync_cmd = MRSAS_TRUE;
5645 	cmd->frame_count = 1;
5646 
5647 	if (instance->tbolt) {
5648 		mr_sas_tbolt_build_mfi_cmd(instance, cmd);
5649 	}
5650 
5651 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
5652 		con_log(CL_ANN, (CE_WARN, "issue_mfi_dcmd: fw_ioctl failed"));
5653 	} else {
5654 		if (xferlen && (kdcmd->flags & MFI_FRAME_DIR_READ)) {
5655 			for (i = 0; i < xferlen; i++) {
5656 				if (ddi_copyout(
5657 				    (uint8_t *)dcmd_dma_obj.buffer + i,
5658 				    (uint8_t *)ubuf + i,
5659 				    1, mode)) {
5660 					con_log(CL_ANN, (CE_WARN,
5661 					    "issue_mfi_dcmd : "
5662 					    "copy to user space failed"));
5663 					return (DDI_FAILURE);
5664 				}
5665 			}
5666 		}
5667 	}
5668 
5669 	kdcmd->cmd_status = ddi_get8(acc_handle, &dcmd->cmd_status);
5670 	con_log(CL_ANN,
5671 	    (CE_CONT, "issue_mfi_dcmd: cmd_status %x", kdcmd->cmd_status));
5672 	DTRACE_PROBE3(issue_dcmd, uint32_t, kdcmd->opcode, uint8_t,
5673 	    kdcmd->cmd, uint8_t, kdcmd->cmd_status);
5674 
5675 	if (xferlen) {
5676 		/* free kernel buffer */
5677 		if (mrsas_free_dma_obj(instance, dcmd_dma_obj) != DDI_SUCCESS)
5678 			return (DDI_FAILURE);
5679 	}
5680 
5681 	return (DDI_SUCCESS);
5682 }
5683 
5684 /*
5685  * issue_mfi_smp
5686  */
5687 static int
5688 issue_mfi_smp(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
5689     struct mrsas_cmd *cmd, int mode)
5690 {
5691 	void		*request_ubuf;
5692 	void		*response_ubuf;
5693 	uint32_t	request_xferlen = 0;
5694 	uint32_t	response_xferlen = 0;
5695 	uint32_t	new_xfer_length1 = 0;
5696 	uint32_t	new_xfer_length2 = 0;
5697 	uint_t		model;
5698 	dma_obj_t			request_dma_obj;
5699 	dma_obj_t			response_dma_obj;
5700 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
5701 	struct mrsas_smp_frame		*ksmp;
5702 	struct mrsas_smp_frame		*smp;
5703 	struct mrsas_sge32		*sge32;
5704 #ifndef _ILP32
5705 	struct mrsas_sge64		*sge64;
5706 #endif
5707 	int i;
5708 	uint64_t			tmp_sas_addr;
5709 
5710 	smp = &cmd->frame->smp;
5711 	ksmp = (struct mrsas_smp_frame *)&ioctl->frame[0];
5712 
5713 	if (instance->adapterresetinprogress) {
5714 		con_log(CL_ANN1, (CE_WARN, "Reset flag set, "
5715 		"returning mfi_pkt and setting TRAN_BUSY\n"));
5716 		return (DDI_FAILURE);
5717 	}
5718 	model = ddi_model_convert_from(mode & FMODELS);
5719 	if (model == DDI_MODEL_ILP32) {
5720 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_smp: DDI_MODEL_ILP32"));
5721 
5722 		sge32			= &ksmp->sgl[0].sge32[0];
5723 		response_xferlen	= sge32[0].length;
5724 		request_xferlen		= sge32[1].length;
5725 		con_log(CL_ANN, (CE_CONT, "issue_mfi_smp: "
5726 		    "response_xferlen = %x, request_xferlen = %x",
5727 		    response_xferlen, request_xferlen));
5728 
5729 		response_ubuf	= (void *)(ulong_t)sge32[0].phys_addr;
5730 		request_ubuf	= (void *)(ulong_t)sge32[1].phys_addr;
5731 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_smp: "
5732 		    "response_ubuf = %p, request_ubuf = %p",
5733 		    response_ubuf, request_ubuf));
5734 	} else {
5735 #ifdef _ILP32
5736 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_smp: DDI_MODEL_ILP32"));
5737 
5738 		sge32			= &ksmp->sgl[0].sge32[0];
5739 		response_xferlen	= sge32[0].length;
5740 		request_xferlen		= sge32[1].length;
5741 		con_log(CL_ANN, (CE_CONT, "issue_mfi_smp: "
5742 		    "response_xferlen = %x, request_xferlen = %x",
5743 		    response_xferlen, request_xferlen));
5744 
5745 		response_ubuf	= (void *)(ulong_t)sge32[0].phys_addr;
5746 		request_ubuf	= (void *)(ulong_t)sge32[1].phys_addr;
5747 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_smp: "
5748 		    "response_ubuf = %p, request_ubuf = %p",
5749 		    response_ubuf, request_ubuf));
5750 #else
5751 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_smp: DDI_MODEL_LP64"));
5752 
5753 		sge64			= &ksmp->sgl[0].sge64[0];
5754 		response_xferlen	= sge64[0].length;
5755 		request_xferlen		= sge64[1].length;
5756 
5757 		response_ubuf	= (void *)(ulong_t)sge64[0].phys_addr;
5758 		request_ubuf	= (void *)(ulong_t)sge64[1].phys_addr;
5759 #endif
5760 	}
5761 	if (request_xferlen) {
5762 		/* means IOCTL requires DMA */
5763 		/* allocate the data transfer buffer */
5764 		/* request_dma_obj.size = request_xferlen; */
5765 		MRSAS_GET_BOUNDARY_ALIGNED_LEN(request_xferlen,
5766 		    new_xfer_length1, PAGESIZE);
5767 		request_dma_obj.size = new_xfer_length1;
5768 		request_dma_obj.dma_attr = mrsas_generic_dma_attr;
5769 		request_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
5770 		request_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
5771 		request_dma_obj.dma_attr.dma_attr_sgllen = 1;
5772 		request_dma_obj.dma_attr.dma_attr_align = 1;
5773 
5774 		/* allocate kernel buffer for DMA */
5775 		if (mrsas_alloc_dma_obj(instance, &request_dma_obj,
5776 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
5777 			con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
5778 			    "could not allocate data transfer buffer."));
5779 			return (DDI_FAILURE);
5780 		}
5781 		(void) memset(request_dma_obj.buffer, 0, request_xferlen);
5782 
5783 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
5784 		for (i = 0; i < request_xferlen; i++) {
5785 			if (ddi_copyin((uint8_t *)request_ubuf + i,
5786 			    (uint8_t *)request_dma_obj.buffer + i,
5787 			    1, mode)) {
5788 				con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
5789 				    "copy from user space failed"));
5790 				return (DDI_FAILURE);
5791 			}
5792 		}
5793 	}
5794 
5795 	if (response_xferlen) {
5796 		/* means IOCTL requires DMA */
5797 		/* allocate the data transfer buffer */
5798 		/* response_dma_obj.size = response_xferlen; */
5799 		MRSAS_GET_BOUNDARY_ALIGNED_LEN(response_xferlen,
5800 		    new_xfer_length2, PAGESIZE);
5801 		response_dma_obj.size = new_xfer_length2;
5802 		response_dma_obj.dma_attr = mrsas_generic_dma_attr;
5803 		response_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
5804 		response_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
5805 		response_dma_obj.dma_attr.dma_attr_sgllen = 1;
5806 		response_dma_obj.dma_attr.dma_attr_align = 1;
5807 
5808 		/* allocate kernel buffer for DMA */
5809 		if (mrsas_alloc_dma_obj(instance, &response_dma_obj,
5810 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
5811 			con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
5812 			    "could not allocate data transfer buffer."));
5813 			return (DDI_FAILURE);
5814 		}
5815 		(void) memset(response_dma_obj.buffer, 0, response_xferlen);
5816 
5817 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
5818 		for (i = 0; i < response_xferlen; i++) {
5819 			if (ddi_copyin((uint8_t *)response_ubuf + i,
5820 			    (uint8_t *)response_dma_obj.buffer + i,
5821 			    1, mode)) {
5822 				con_log(CL_ANN, (CE_WARN, "issue_mfi_smp: "
5823 				    "copy from user space failed"));
5824 				return (DDI_FAILURE);
5825 			}
5826 		}
5827 	}
5828 
5829 	ddi_put8(acc_handle, &smp->cmd, ksmp->cmd);
5830 	ddi_put8(acc_handle, &smp->cmd_status, 0);
5831 	ddi_put8(acc_handle, &smp->connection_status, 0);
5832 	ddi_put8(acc_handle, &smp->sge_count, ksmp->sge_count);
5833 	/* smp->context		= ksmp->context; */
5834 	ddi_put16(acc_handle, &smp->timeout, ksmp->timeout);
5835 	ddi_put32(acc_handle, &smp->data_xfer_len, ksmp->data_xfer_len);
5836 
5837 	bcopy((void *)&ksmp->sas_addr, (void *)&tmp_sas_addr,
5838 	    sizeof (uint64_t));
5839 	ddi_put64(acc_handle, &smp->sas_addr, tmp_sas_addr);
5840 
5841 	ddi_put16(acc_handle, &smp->flags, ksmp->flags & ~MFI_FRAME_SGL64);
5842 
5843 	model = ddi_model_convert_from(mode & FMODELS);
5844 	if (model == DDI_MODEL_ILP32) {
5845 		con_log(CL_ANN1, (CE_CONT,
5846 		    "issue_mfi_smp: DDI_MODEL_ILP32"));
5847 
5848 		sge32 = &smp->sgl[0].sge32[0];
5849 		ddi_put32(acc_handle, &sge32[0].length, response_xferlen);
5850 		ddi_put32(acc_handle, &sge32[0].phys_addr,
5851 		    response_dma_obj.dma_cookie[0].dmac_address);
5852 		ddi_put32(acc_handle, &sge32[1].length, request_xferlen);
5853 		ddi_put32(acc_handle, &sge32[1].phys_addr,
5854 		    request_dma_obj.dma_cookie[0].dmac_address);
5855 	} else {
5856 #ifdef _ILP32
5857 		con_log(CL_ANN1, (CE_CONT,
5858 		    "issue_mfi_smp: DDI_MODEL_ILP32"));
5859 		sge32 = &smp->sgl[0].sge32[0];
5860 		ddi_put32(acc_handle, &sge32[0].length, response_xferlen);
5861 		ddi_put32(acc_handle, &sge32[0].phys_addr,
5862 		    response_dma_obj.dma_cookie[0].dmac_address);
5863 		ddi_put32(acc_handle, &sge32[1].length, request_xferlen);
5864 		ddi_put32(acc_handle, &sge32[1].phys_addr,
5865 		    request_dma_obj.dma_cookie[0].dmac_address);
5866 #else
5867 		con_log(CL_ANN1, (CE_CONT,
5868 		    "issue_mfi_smp: DDI_MODEL_LP64"));
5869 		sge64 = &smp->sgl[0].sge64[0];
5870 		ddi_put32(acc_handle, &sge64[0].length, response_xferlen);
5871 		ddi_put64(acc_handle, &sge64[0].phys_addr,
5872 		    response_dma_obj.dma_cookie[0].dmac_address);
5873 		ddi_put32(acc_handle, &sge64[1].length, request_xferlen);
5874 		ddi_put64(acc_handle, &sge64[1].phys_addr,
5875 		    request_dma_obj.dma_cookie[0].dmac_address);
5876 #endif
5877 	}
5878 	con_log(CL_ANN1, (CE_CONT, "issue_mfi_smp : "
5879 	    "smp->response_xferlen = %d, smp->request_xferlen = %d "
5880 	    "smp->data_xfer_len = %d", ddi_get32(acc_handle, &sge32[0].length),
5881 	    ddi_get32(acc_handle, &sge32[1].length),
5882 	    ddi_get32(acc_handle, &smp->data_xfer_len)));
5883 
5884 	cmd->sync_cmd = MRSAS_TRUE;
5885 	cmd->frame_count = 1;
5886 
5887 	if (instance->tbolt) {
5888 		mr_sas_tbolt_build_mfi_cmd(instance, cmd);
5889 	}
5890 
5891 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
5892 		con_log(CL_ANN, (CE_WARN,
5893 		    "issue_mfi_smp: fw_ioctl failed"));
5894 	} else {
5895 		con_log(CL_ANN1, (CE_CONT,
5896 		    "issue_mfi_smp: copy to user space"));
5897 
5898 		if (request_xferlen) {
5899 			for (i = 0; i < request_xferlen; i++) {
5900 				if (ddi_copyout(
5901 				    (uint8_t *)request_dma_obj.buffer +
5902 				    i, (uint8_t *)request_ubuf + i,
5903 				    1, mode)) {
5904 					con_log(CL_ANN, (CE_WARN,
5905 					    "issue_mfi_smp : copy to user space"
5906 					    " failed"));
5907 					return (DDI_FAILURE);
5908 				}
5909 			}
5910 		}
5911 
5912 		if (response_xferlen) {
5913 			for (i = 0; i < response_xferlen; i++) {
5914 				if (ddi_copyout(
5915 				    (uint8_t *)response_dma_obj.buffer
5916 				    + i, (uint8_t *)response_ubuf
5917 				    + i, 1, mode)) {
5918 					con_log(CL_ANN, (CE_WARN,
5919 					    "issue_mfi_smp : copy to "
5920 					    "user space failed"));
5921 					return (DDI_FAILURE);
5922 				}
5923 			}
5924 		}
5925 	}
5926 
5927 	ksmp->cmd_status = ddi_get8(acc_handle, &smp->cmd_status);
5928 	con_log(CL_ANN1, (CE_NOTE, "issue_mfi_smp: smp->cmd_status = %d",
5929 	    ksmp->cmd_status));
5930 	DTRACE_PROBE2(issue_smp, uint8_t, ksmp->cmd, uint8_t, ksmp->cmd_status);
5931 
5932 	if (request_xferlen) {
5933 		/* free kernel buffer */
5934 		if (mrsas_free_dma_obj(instance, request_dma_obj) !=
5935 		    DDI_SUCCESS)
5936 			return (DDI_FAILURE);
5937 	}
5938 
5939 	if (response_xferlen) {
5940 		/* free kernel buffer */
5941 		if (mrsas_free_dma_obj(instance, response_dma_obj) !=
5942 		    DDI_SUCCESS)
5943 			return (DDI_FAILURE);
5944 	}
5945 
5946 	return (DDI_SUCCESS);
5947 }
5948 
5949 /*
5950  * issue_mfi_stp
5951  */
5952 static int
5953 issue_mfi_stp(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
5954     struct mrsas_cmd *cmd, int mode)
5955 {
5956 	void		*fis_ubuf;
5957 	void		*data_ubuf;
5958 	uint32_t	fis_xferlen = 0;
5959 	uint32_t   new_xfer_length1 = 0;
5960 	uint32_t   new_xfer_length2 = 0;
5961 	uint32_t	data_xferlen = 0;
5962 	uint_t		model;
5963 	dma_obj_t	fis_dma_obj;
5964 	dma_obj_t	data_dma_obj;
5965 	struct mrsas_stp_frame	*kstp;
5966 	struct mrsas_stp_frame	*stp;
5967 	ddi_acc_handle_t	acc_handle = cmd->frame_dma_obj.acc_handle;
5968 	int i;
5969 
5970 	stp = &cmd->frame->stp;
5971 	kstp = (struct mrsas_stp_frame *)&ioctl->frame[0];
5972 
5973 	if (instance->adapterresetinprogress) {
5974 		con_log(CL_ANN1, (CE_WARN, "Reset flag set, "
5975 		"returning mfi_pkt and setting TRAN_BUSY\n"));
5976 		return (DDI_FAILURE);
5977 	}
5978 	model = ddi_model_convert_from(mode & FMODELS);
5979 	if (model == DDI_MODEL_ILP32) {
5980 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_stp: DDI_MODEL_ILP32"));
5981 
5982 		fis_xferlen	= kstp->sgl.sge32[0].length;
5983 		data_xferlen	= kstp->sgl.sge32[1].length;
5984 
5985 		fis_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[0].phys_addr;
5986 		data_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[1].phys_addr;
5987 	} else {
5988 #ifdef _ILP32
5989 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_stp: DDI_MODEL_ILP32"));
5990 
5991 		fis_xferlen	= kstp->sgl.sge32[0].length;
5992 		data_xferlen	= kstp->sgl.sge32[1].length;
5993 
5994 		fis_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[0].phys_addr;
5995 		data_ubuf	= (void *)(ulong_t)kstp->sgl.sge32[1].phys_addr;
5996 #else
5997 		con_log(CL_ANN1, (CE_CONT, "issue_mfi_stp: DDI_MODEL_LP64"));
5998 
5999 		fis_xferlen	= kstp->sgl.sge64[0].length;
6000 		data_xferlen	= kstp->sgl.sge64[1].length;
6001 
6002 		fis_ubuf	= (void *)(ulong_t)kstp->sgl.sge64[0].phys_addr;
6003 		data_ubuf	= (void *)(ulong_t)kstp->sgl.sge64[1].phys_addr;
6004 #endif
6005 	}
6006 
6007 
6008 	if (fis_xferlen) {
6009 		con_log(CL_ANN, (CE_CONT, "issue_mfi_stp: "
6010 		    "fis_ubuf = %p fis_xferlen = %x", fis_ubuf, fis_xferlen));
6011 
6012 		/* means IOCTL requires DMA */
6013 		/* allocate the data transfer buffer */
6014 		/* fis_dma_obj.size = fis_xferlen; */
6015 		MRSAS_GET_BOUNDARY_ALIGNED_LEN(fis_xferlen,
6016 		    new_xfer_length1, PAGESIZE);
6017 		fis_dma_obj.size = new_xfer_length1;
6018 		fis_dma_obj.dma_attr = mrsas_generic_dma_attr;
6019 		fis_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
6020 		fis_dma_obj.dma_attr.dma_attr_count_max	= 0xFFFFFFFFU;
6021 		fis_dma_obj.dma_attr.dma_attr_sgllen = 1;
6022 		fis_dma_obj.dma_attr.dma_attr_align = 1;
6023 
6024 		/* allocate kernel buffer for DMA */
6025 		if (mrsas_alloc_dma_obj(instance, &fis_dma_obj,
6026 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
6027 			con_log(CL_ANN, (CE_WARN, "issue_mfi_stp : "
6028 			    "could not allocate data transfer buffer."));
6029 			return (DDI_FAILURE);
6030 		}
6031 		(void) memset(fis_dma_obj.buffer, 0, fis_xferlen);
6032 
6033 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
6034 		for (i = 0; i < fis_xferlen; i++) {
6035 			if (ddi_copyin((uint8_t *)fis_ubuf + i,
6036 			    (uint8_t *)fis_dma_obj.buffer + i, 1, mode)) {
6037 				con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: "
6038 				    "copy from user space failed"));
6039 				return (DDI_FAILURE);
6040 			}
6041 		}
6042 	}
6043 
6044 	if (data_xferlen) {
6045 		con_log(CL_ANN, (CE_CONT, "issue_mfi_stp: data_ubuf = %p "
6046 		    "data_xferlen = %x", data_ubuf, data_xferlen));
6047 
6048 		/* means IOCTL requires DMA */
6049 		/* allocate the data transfer buffer */
6050 		/* data_dma_obj.size = data_xferlen; */
6051 		MRSAS_GET_BOUNDARY_ALIGNED_LEN(data_xferlen, new_xfer_length2,
6052 		    PAGESIZE);
6053 		data_dma_obj.size = new_xfer_length2;
6054 		data_dma_obj.dma_attr = mrsas_generic_dma_attr;
6055 		data_dma_obj.dma_attr.dma_attr_addr_hi = 0xFFFFFFFFU;
6056 		data_dma_obj.dma_attr.dma_attr_count_max = 0xFFFFFFFFU;
6057 		data_dma_obj.dma_attr.dma_attr_sgllen = 1;
6058 		data_dma_obj.dma_attr.dma_attr_align = 1;
6059 
6060 		/* allocate kernel buffer for DMA */
6061 		if (mrsas_alloc_dma_obj(instance, &data_dma_obj,
6062 		    (uchar_t)DDI_STRUCTURE_LE_ACC) != 1) {
6063 			con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: "
6064 			    "could not allocate data transfer buffer."));
6065 			return (DDI_FAILURE);
6066 		}
6067 		(void) memset(data_dma_obj.buffer, 0, data_xferlen);
6068 
6069 		/* If IOCTL requires DMA WRITE, do ddi_copyin IOCTL data copy */
6070 		for (i = 0; i < data_xferlen; i++) {
6071 			if (ddi_copyin((uint8_t *)data_ubuf + i,
6072 			    (uint8_t *)data_dma_obj.buffer + i, 1, mode)) {
6073 				con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: "
6074 				    "copy from user space failed"));
6075 				return (DDI_FAILURE);
6076 			}
6077 		}
6078 	}
6079 
6080 	ddi_put8(acc_handle, &stp->cmd, kstp->cmd);
6081 	ddi_put8(acc_handle, &stp->cmd_status, 0);
6082 	ddi_put8(acc_handle, &stp->connection_status, 0);
6083 	ddi_put8(acc_handle, &stp->target_id, kstp->target_id);
6084 	ddi_put8(acc_handle, &stp->sge_count, kstp->sge_count);
6085 
6086 	ddi_put16(acc_handle, &stp->timeout, kstp->timeout);
6087 	ddi_put32(acc_handle, &stp->data_xfer_len, kstp->data_xfer_len);
6088 
6089 	ddi_rep_put8(acc_handle, (uint8_t *)kstp->fis, (uint8_t *)stp->fis, 10,
6090 	    DDI_DEV_AUTOINCR);
6091 
6092 	ddi_put16(acc_handle, &stp->flags, kstp->flags & ~MFI_FRAME_SGL64);
6093 	ddi_put32(acc_handle, &stp->stp_flags, kstp->stp_flags);
6094 	ddi_put32(acc_handle, &stp->sgl.sge32[0].length, fis_xferlen);
6095 	ddi_put32(acc_handle, &stp->sgl.sge32[0].phys_addr,
6096 	    fis_dma_obj.dma_cookie[0].dmac_address);
6097 	ddi_put32(acc_handle, &stp->sgl.sge32[1].length, data_xferlen);
6098 	ddi_put32(acc_handle, &stp->sgl.sge32[1].phys_addr,
6099 	    data_dma_obj.dma_cookie[0].dmac_address);
6100 
6101 	cmd->sync_cmd = MRSAS_TRUE;
6102 	cmd->frame_count = 1;
6103 
6104 	if (instance->tbolt) {
6105 		mr_sas_tbolt_build_mfi_cmd(instance, cmd);
6106 	}
6107 
6108 	if (instance->func_ptr->issue_cmd_in_sync_mode(instance, cmd)) {
6109 		con_log(CL_ANN, (CE_WARN, "issue_mfi_stp: fw_ioctl failed"));
6110 	} else {
6111 
6112 		if (fis_xferlen) {
6113 			for (i = 0; i < fis_xferlen; i++) {
6114 				if (ddi_copyout(
6115 				    (uint8_t *)fis_dma_obj.buffer + i,
6116 				    (uint8_t *)fis_ubuf + i, 1, mode)) {
6117 					con_log(CL_ANN, (CE_WARN,
6118 					    "issue_mfi_stp : copy to "
6119 					    "user space failed"));
6120 					return (DDI_FAILURE);
6121 				}
6122 			}
6123 		}
6124 	}
6125 	if (data_xferlen) {
6126 		for (i = 0; i < data_xferlen; i++) {
6127 			if (ddi_copyout(
6128 			    (uint8_t *)data_dma_obj.buffer + i,
6129 			    (uint8_t *)data_ubuf + i, 1, mode)) {
6130 				con_log(CL_ANN, (CE_WARN,
6131 				    "issue_mfi_stp : copy to"
6132 				    " user space failed"));
6133 				return (DDI_FAILURE);
6134 			}
6135 		}
6136 	}
6137 
6138 	kstp->cmd_status = ddi_get8(acc_handle, &stp->cmd_status);
6139 	con_log(CL_ANN1, (CE_NOTE, "issue_mfi_stp: stp->cmd_status = %d",
6140 	    kstp->cmd_status));
6141 	DTRACE_PROBE2(issue_stp, uint8_t, kstp->cmd, uint8_t, kstp->cmd_status);
6142 
6143 	if (fis_xferlen) {
6144 		/* free kernel buffer */
6145 		if (mrsas_free_dma_obj(instance, fis_dma_obj) != DDI_SUCCESS)
6146 			return (DDI_FAILURE);
6147 	}
6148 
6149 	if (data_xferlen) {
6150 		/* free kernel buffer */
6151 		if (mrsas_free_dma_obj(instance, data_dma_obj) != DDI_SUCCESS)
6152 			return (DDI_FAILURE);
6153 	}
6154 
6155 	return (DDI_SUCCESS);
6156 }
6157 
6158 /*
6159  * fill_up_drv_ver
6160  */
6161 void
6162 fill_up_drv_ver(struct mrsas_drv_ver *dv)
6163 {
6164 	(void) memset(dv, 0, sizeof (struct mrsas_drv_ver));
6165 
6166 	(void) memcpy(dv->signature, "$LSI LOGIC$", strlen("$LSI LOGIC$"));
6167 	(void) memcpy(dv->os_name, "Solaris", strlen("Solaris"));
6168 	(void) memcpy(dv->drv_name, "mr_sas", strlen("mr_sas"));
6169 	(void) memcpy(dv->drv_ver, MRSAS_VERSION, strlen(MRSAS_VERSION));
6170 	(void) memcpy(dv->drv_rel_date, MRSAS_RELDATE,
6171 	    strlen(MRSAS_RELDATE));
6172 
6173 }
6174 
6175 /*
6176  * handle_drv_ioctl
6177  */
6178 static int
6179 handle_drv_ioctl(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
6180     int mode)
6181 {
6182 	int	i;
6183 	int	rval = DDI_SUCCESS;
6184 	int	*props = NULL;
6185 	void	*ubuf;
6186 
6187 	uint8_t		*pci_conf_buf;
6188 	uint32_t	xferlen;
6189 	uint32_t	num_props;
6190 	uint_t		model;
6191 	struct mrsas_dcmd_frame	*kdcmd;
6192 	struct mrsas_drv_ver	dv;
6193 	struct mrsas_pci_information pi;
6194 
6195 	kdcmd = (struct mrsas_dcmd_frame *)&ioctl->frame[0];
6196 
6197 	model = ddi_model_convert_from(mode & FMODELS);
6198 	if (model == DDI_MODEL_ILP32) {
6199 		con_log(CL_ANN1, (CE_CONT,
6200 		    "handle_drv_ioctl: DDI_MODEL_ILP32"));
6201 
6202 		xferlen	= kdcmd->sgl.sge32[0].length;
6203 
6204 		ubuf = (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
6205 	} else {
6206 #ifdef _ILP32
6207 		con_log(CL_ANN1, (CE_CONT,
6208 		    "handle_drv_ioctl: DDI_MODEL_ILP32"));
6209 		xferlen	= kdcmd->sgl.sge32[0].length;
6210 		ubuf = (void *)(ulong_t)kdcmd->sgl.sge32[0].phys_addr;
6211 #else
6212 		con_log(CL_ANN1, (CE_CONT,
6213 		    "handle_drv_ioctl: DDI_MODEL_LP64"));
6214 		xferlen	= kdcmd->sgl.sge64[0].length;
6215 		ubuf = (void *)(ulong_t)kdcmd->sgl.sge64[0].phys_addr;
6216 #endif
6217 	}
6218 	con_log(CL_ANN1, (CE_CONT, "handle_drv_ioctl: "
6219 	    "dataBuf=%p size=%d bytes", ubuf, xferlen));
6220 
6221 	switch (kdcmd->opcode) {
6222 	case MRSAS_DRIVER_IOCTL_DRIVER_VERSION:
6223 		con_log(CL_ANN1, (CE_CONT, "handle_drv_ioctl: "
6224 		    "MRSAS_DRIVER_IOCTL_DRIVER_VERSION"));
6225 
6226 		fill_up_drv_ver(&dv);
6227 
6228 		if (ddi_copyout(&dv, ubuf, xferlen, mode)) {
6229 			con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
6230 			    "MRSAS_DRIVER_IOCTL_DRIVER_VERSION : "
6231 			    "copy to user space failed"));
6232 			kdcmd->cmd_status = 1;
6233 			rval = 1;
6234 		} else {
6235 			kdcmd->cmd_status = 0;
6236 		}
6237 		break;
6238 	case MRSAS_DRIVER_IOCTL_PCI_INFORMATION:
6239 		con_log(CL_ANN1, (CE_NOTE, "handle_drv_ioctl: "
6240 		    "MRSAS_DRIVER_IOCTL_PCI_INFORMAITON"));
6241 
6242 		if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, instance->dip,
6243 		    0, "reg", &props, &num_props)) {
6244 			con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
6245 			    "MRSAS_DRIVER_IOCTL_PCI_INFORMATION : "
6246 			    "ddi_prop_look_int_array failed"));
6247 			rval = DDI_FAILURE;
6248 		} else {
6249 
6250 			pi.busNumber = (props[0] >> 16) & 0xFF;
6251 			pi.deviceNumber = (props[0] >> 11) & 0x1f;
6252 			pi.functionNumber = (props[0] >> 8) & 0x7;
6253 			ddi_prop_free((void *)props);
6254 		}
6255 
6256 		pci_conf_buf = (uint8_t *)&pi.pciHeaderInfo;
6257 
6258 		for (i = 0; i < (sizeof (struct mrsas_pci_information) -
6259 		    offsetof(struct mrsas_pci_information, pciHeaderInfo));
6260 		    i++) {
6261 			pci_conf_buf[i] =
6262 			    pci_config_get8(instance->pci_handle, i);
6263 		}
6264 
6265 		if (ddi_copyout(&pi, ubuf, xferlen, mode)) {
6266 			con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
6267 			    "MRSAS_DRIVER_IOCTL_PCI_INFORMATION : "
6268 			    "copy to user space failed"));
6269 			kdcmd->cmd_status = 1;
6270 			rval = 1;
6271 		} else {
6272 			kdcmd->cmd_status = 0;
6273 		}
6274 		break;
6275 	default:
6276 		con_log(CL_ANN, (CE_WARN, "handle_drv_ioctl: "
6277 		    "invalid driver specific IOCTL opcode = 0x%x",
6278 		    kdcmd->opcode));
6279 		kdcmd->cmd_status = 1;
6280 		rval = DDI_FAILURE;
6281 		break;
6282 	}
6283 
6284 	return (rval);
6285 }
6286 
6287 /*
6288  * handle_mfi_ioctl
6289  */
6290 static int
6291 handle_mfi_ioctl(struct mrsas_instance *instance, struct mrsas_ioctl *ioctl,
6292     int mode)
6293 {
6294 	int	rval = DDI_SUCCESS;
6295 
6296 	struct mrsas_header	*hdr;
6297 	struct mrsas_cmd	*cmd;
6298 
6299 	if (instance->tbolt) {
6300 		cmd = get_raid_msg_mfi_pkt(instance);
6301 	} else {
6302 		cmd = mrsas_get_mfi_pkt(instance);
6303 	}
6304 	if (!cmd) {
6305 		con_log(CL_ANN, (CE_WARN, "mr_sas: "
6306 		    "failed to get a cmd packet"));
6307 		DTRACE_PROBE2(mfi_ioctl_err, uint16_t,
6308 		    instance->fw_outstanding, uint16_t, instance->max_fw_cmds);
6309 		return (DDI_FAILURE);
6310 	}
6311 
6312 	/* Clear the frame buffer and assign back the context id */
6313 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
6314 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
6315 	    cmd->index);
6316 
6317 	hdr = (struct mrsas_header *)&ioctl->frame[0];
6318 
6319 	switch (ddi_get8(cmd->frame_dma_obj.acc_handle, &hdr->cmd)) {
6320 	case MFI_CMD_OP_DCMD:
6321 		rval = issue_mfi_dcmd(instance, ioctl, cmd, mode);
6322 		break;
6323 	case MFI_CMD_OP_SMP:
6324 		rval = issue_mfi_smp(instance, ioctl, cmd, mode);
6325 		break;
6326 	case MFI_CMD_OP_STP:
6327 		rval = issue_mfi_stp(instance, ioctl, cmd, mode);
6328 		break;
6329 	case MFI_CMD_OP_LD_SCSI:
6330 	case MFI_CMD_OP_PD_SCSI:
6331 		rval = issue_mfi_pthru(instance, ioctl, cmd, mode);
6332 		break;
6333 	default:
6334 		con_log(CL_ANN, (CE_WARN, "handle_mfi_ioctl: "
6335 		    "invalid mfi ioctl hdr->cmd = %d", hdr->cmd));
6336 		rval = DDI_FAILURE;
6337 		break;
6338 	}
6339 
6340 	if (mrsas_common_check(instance, cmd) != DDI_SUCCESS)
6341 		rval = DDI_FAILURE;
6342 
6343 	if (instance->tbolt) {
6344 		return_raid_msg_mfi_pkt(instance, cmd);
6345 	} else {
6346 		mrsas_return_mfi_pkt(instance, cmd);
6347 	}
6348 
6349 	return (rval);
6350 }
6351 
6352 /*
6353  * AEN
6354  */
6355 static int
6356 handle_mfi_aen(struct mrsas_instance *instance, struct mrsas_aen *aen)
6357 {
6358 	int	rval = 0;
6359 
6360 	rval = register_mfi_aen(instance, instance->aen_seq_num,
6361 	    aen->class_locale_word);
6362 
6363 	aen->cmd_status = (uint8_t)rval;
6364 
6365 	return (rval);
6366 }
6367 
6368 static int
6369 register_mfi_aen(struct mrsas_instance *instance, uint32_t seq_num,
6370     uint32_t class_locale_word)
6371 {
6372 	int	ret_val;
6373 
6374 	struct mrsas_cmd	*cmd, *aen_cmd;
6375 	struct mrsas_dcmd_frame	*dcmd;
6376 	union mrsas_evt_class_locale	curr_aen;
6377 	union mrsas_evt_class_locale	prev_aen;
6378 
6379 	con_log(CL_ANN, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
6380 	/*
6381 	 * If there an AEN pending already (aen_cmd), check if the
6382 	 * class_locale of that pending AEN is inclusive of the new
6383 	 * AEN request we currently have. If it is, then we don't have
6384 	 * to do anything. In other words, whichever events the current
6385 	 * AEN request is subscribing to, have already been subscribed
6386 	 * to.
6387 	 *
6388 	 * If the old_cmd is _not_ inclusive, then we have to abort
6389 	 * that command, form a class_locale that is superset of both
6390 	 * old and current and re-issue to the FW
6391 	 */
6392 
6393 	curr_aen.word = LE_32(class_locale_word);
6394 	curr_aen.members.locale = LE_16(curr_aen.members.locale);
6395 	aen_cmd = instance->aen_cmd;
6396 	if (aen_cmd) {
6397 		prev_aen.word = ddi_get32(aen_cmd->frame_dma_obj.acc_handle,
6398 		    &aen_cmd->frame->dcmd.mbox.w[1]);
6399 		prev_aen.word = LE_32(prev_aen.word);
6400 		prev_aen.members.locale = LE_16(prev_aen.members.locale);
6401 		/*
6402 		 * A class whose enum value is smaller is inclusive of all
6403 		 * higher values. If a PROGRESS (= -1) was previously
6404 		 * registered, then a new registration requests for higher
6405 		 * classes need not be sent to FW. They are automatically
6406 		 * included.
6407 		 *
6408 		 * Locale numbers don't have such hierarchy. They are bitmap
6409 		 * values
6410 		 */
6411 		if ((prev_aen.members.class <= curr_aen.members.class) &&
6412 		    !((prev_aen.members.locale & curr_aen.members.locale) ^
6413 		    curr_aen.members.locale)) {
6414 			/*
6415 			 * Previously issued event registration includes
6416 			 * current request. Nothing to do.
6417 			 */
6418 
6419 			return (0);
6420 		} else {
6421 			curr_aen.members.locale |= prev_aen.members.locale;
6422 
6423 			if (prev_aen.members.class < curr_aen.members.class)
6424 				curr_aen.members.class = prev_aen.members.class;
6425 
6426 			ret_val = abort_aen_cmd(instance, aen_cmd);
6427 
6428 			if (ret_val) {
6429 				con_log(CL_ANN, (CE_WARN, "register_mfi_aen: "
6430 				    "failed to abort prevous AEN command"));
6431 
6432 				return (ret_val);
6433 			}
6434 		}
6435 	} else {
6436 		curr_aen.word = LE_32(class_locale_word);
6437 		curr_aen.members.locale = LE_16(curr_aen.members.locale);
6438 	}
6439 
6440 	if (instance->tbolt) {
6441 		cmd = get_raid_msg_mfi_pkt(instance);
6442 	} else {
6443 		cmd = mrsas_get_mfi_pkt(instance);
6444 	}
6445 
6446 	if (!cmd) {
6447 		DTRACE_PROBE2(mfi_aen_err, uint16_t, instance->fw_outstanding,
6448 		    uint16_t, instance->max_fw_cmds);
6449 		return (ENOMEM);
6450 	}
6451 
6452 	/* Clear the frame buffer and assign back the context id */
6453 	(void) memset((char *)&cmd->frame[0], 0, sizeof (union mrsas_frame));
6454 	ddi_put32(cmd->frame_dma_obj.acc_handle, &cmd->frame->hdr.context,
6455 	    cmd->index);
6456 
6457 	dcmd = &cmd->frame->dcmd;
6458 
6459 	/* for(i = 0; i < DCMD_MBOX_SZ; i++) dcmd->mbox.b[i] = 0; */
6460 	(void) memset(dcmd->mbox.b, 0, DCMD_MBOX_SZ);
6461 
6462 	(void) memset(instance->mfi_evt_detail_obj.buffer, 0,
6463 	    sizeof (struct mrsas_evt_detail));
6464 
6465 	/* Prepare DCMD for aen registration */
6466 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd, MFI_CMD_OP_DCMD);
6467 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->cmd_status, 0x0);
6468 	ddi_put8(cmd->frame_dma_obj.acc_handle, &dcmd->sge_count, 1);
6469 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->flags,
6470 	    MFI_FRAME_DIR_READ);
6471 	ddi_put16(cmd->frame_dma_obj.acc_handle, &dcmd->timeout, 0);
6472 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->data_xfer_len,
6473 	    sizeof (struct mrsas_evt_detail));
6474 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->opcode,
6475 	    MR_DCMD_CTRL_EVENT_WAIT);
6476 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->mbox.w[0], seq_num);
6477 	curr_aen.members.locale = LE_16(curr_aen.members.locale);
6478 	curr_aen.word = LE_32(curr_aen.word);
6479 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->mbox.w[1],
6480 	    curr_aen.word);
6481 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].phys_addr,
6482 	    instance->mfi_evt_detail_obj.dma_cookie[0].dmac_address);
6483 	ddi_put32(cmd->frame_dma_obj.acc_handle, &dcmd->sgl.sge32[0].length,
6484 	    sizeof (struct mrsas_evt_detail));
6485 
6486 	instance->aen_seq_num = seq_num;
6487 
6488 
6489 	/*
6490 	 * Store reference to the cmd used to register for AEN. When an
6491 	 * application wants us to register for AEN, we have to abort this
6492 	 * cmd and re-register with a new EVENT LOCALE supplied by that app
6493 	 */
6494 	instance->aen_cmd = cmd;
6495 
6496 	cmd->frame_count = 1;
6497 
6498 	/* Issue the aen registration frame */
6499 	/* atomic_add_16 (&instance->fw_outstanding, 1); */
6500 	if (instance->tbolt) {
6501 		mr_sas_tbolt_build_mfi_cmd(instance, cmd);
6502 	}
6503 	instance->func_ptr->issue_cmd(cmd, instance);
6504 
6505 	return (0);
6506 }
6507 
6508 void
6509 display_scsi_inquiry(caddr_t scsi_inq)
6510 {
6511 #define	MAX_SCSI_DEVICE_CODE	14
6512 	int		i;
6513 	char		inquiry_buf[256] = {0};
6514 	int		len;
6515 	const char	*const scsi_device_types[] = {
6516 		"Direct-Access	  ",
6517 		"Sequential-Access",
6518 		"Printer	  ",
6519 		"Processor	  ",
6520 		"WORM		  ",
6521 		"CD-ROM		  ",
6522 		"Scanner	  ",
6523 		"Optical Device	  ",
6524 		"Medium Changer	  ",
6525 		"Communications	  ",
6526 		"Unknown	  ",
6527 		"Unknown	  ",
6528 		"Unknown	  ",
6529 		"Enclosure	  ",
6530 	};
6531 
6532 	len = 0;
6533 
6534 	len += snprintf(inquiry_buf + len, 265 - len, "	 Vendor: ");
6535 	for (i = 8; i < 16; i++) {
6536 		len += snprintf(inquiry_buf + len, 265 - len, "%c",
6537 		    scsi_inq[i]);
6538 	}
6539 
6540 	len += snprintf(inquiry_buf + len, 265 - len, "	 Model: ");
6541 
6542 	for (i = 16; i < 32; i++) {
6543 		len += snprintf(inquiry_buf + len, 265 - len, "%c",
6544 		    scsi_inq[i]);
6545 	}
6546 
6547 	len += snprintf(inquiry_buf + len, 265 - len, "	 Rev: ");
6548 
6549 	for (i = 32; i < 36; i++) {
6550 		len += snprintf(inquiry_buf + len, 265 - len, "%c",
6551 		    scsi_inq[i]);
6552 	}
6553 
6554 	len += snprintf(inquiry_buf + len, 265 - len, "\n");
6555 
6556 
6557 	i = scsi_inq[0] & 0x1f;
6558 
6559 
6560 	len += snprintf(inquiry_buf + len, 265 - len, "	 Type:	 %s ",
6561 	    i < MAX_SCSI_DEVICE_CODE ? scsi_device_types[i] :
6562 	    "Unknown	      ");
6563 
6564 
6565 	len += snprintf(inquiry_buf + len, 265 - len,
6566 	    "		      ANSI SCSI revision: %02x", scsi_inq[2] & 0x07);
6567 
6568 	if ((scsi_inq[2] & 0x07) == 1 && (scsi_inq[3] & 0x0f) == 1) {
6569 		len += snprintf(inquiry_buf + len, 265 - len, " CCS\n");
6570 	} else {
6571 		len += snprintf(inquiry_buf + len, 265 - len, "\n");
6572 	}
6573 
6574 	con_log(CL_DLEVEL2, (CE_CONT, inquiry_buf));
6575 }
6576 
6577 static void
6578 io_timeout_checker(void *arg)
6579 {
6580 	struct scsi_pkt *pkt;
6581 	struct mrsas_instance *instance = arg;
6582 	struct mrsas_cmd	*cmd = NULL;
6583 	struct mrsas_header	*hdr;
6584 	int time = 0;
6585 	int counter = 0;
6586 	struct mlist_head	*pos, *next;
6587 	mlist_t			process_list;
6588 
6589 	if (instance->adapterresetinprogress == 1) {
6590 		con_log(CL_ANN, (CE_NOTE, "io_timeout_checker:"
6591 		    " reset in progress"));
6592 
6593 		instance->timeout_id = timeout(io_timeout_checker,
6594 		    (void *) instance, drv_usectohz(MRSAS_1_SECOND));
6595 		return;
6596 	}
6597 
6598 	/* See if this check needs to be in the beginning or last in ISR */
6599 	if (mrsas_initiate_ocr_if_fw_is_faulty(instance) ==  1) {
6600 		dev_err(instance->dip, CE_WARN, "io_timeout_checker: "
6601 		    "FW Fault, calling reset adapter");
6602 		dev_err(instance->dip, CE_CONT, "io_timeout_checker: "
6603 		    "fw_outstanding 0x%X max_fw_cmds 0x%X",
6604 		    instance->fw_outstanding, instance->max_fw_cmds);
6605 		if (instance->adapterresetinprogress == 0) {
6606 			instance->adapterresetinprogress = 1;
6607 			if (instance->tbolt)
6608 				(void) mrsas_tbolt_reset_ppc(instance);
6609 			else
6610 				(void) mrsas_reset_ppc(instance);
6611 			instance->adapterresetinprogress = 0;
6612 		}
6613 		instance->timeout_id = timeout(io_timeout_checker,
6614 		    (void *) instance, drv_usectohz(MRSAS_1_SECOND));
6615 		return;
6616 	}
6617 
6618 	INIT_LIST_HEAD(&process_list);
6619 
6620 	mutex_enter(&instance->cmd_pend_mtx);
6621 	mlist_for_each_safe(pos, next, &instance->cmd_pend_list) {
6622 		cmd = mlist_entry(pos, struct mrsas_cmd, list);
6623 
6624 		if (cmd == NULL) {
6625 			continue;
6626 		}
6627 
6628 		if (cmd->sync_cmd == MRSAS_TRUE) {
6629 			hdr = (struct mrsas_header *)&cmd->frame->hdr;
6630 			if (hdr == NULL) {
6631 				continue;
6632 			}
6633 			time = --cmd->drv_pkt_time;
6634 		} else {
6635 			pkt = cmd->pkt;
6636 			if (pkt == NULL) {
6637 				continue;
6638 			}
6639 			time = --cmd->drv_pkt_time;
6640 		}
6641 		if (time <= 0) {
6642 			dev_err(instance->dip, CE_WARN, "%llx: "
6643 			    "io_timeout_checker: TIMING OUT: pkt: %p, "
6644 			    "cmd %p fw_outstanding 0x%X max_fw_cmds 0x%X",
6645 			    gethrtime(), (void *)pkt, (void *)cmd,
6646 			    instance->fw_outstanding, instance->max_fw_cmds);
6647 
6648 			counter++;
6649 			break;
6650 		}
6651 	}
6652 	mutex_exit(&instance->cmd_pend_mtx);
6653 
6654 	if (counter) {
6655 		if (instance->disable_online_ctrl_reset == 1) {
6656 			dev_err(instance->dip, CE_WARN, "%s(): OCR is NOT "
6657 			    "supported by Firmware, KILL adapter!!!",
6658 			    __func__);
6659 
6660 			if (instance->tbolt)
6661 				mrsas_tbolt_kill_adapter(instance);
6662 			else
6663 				(void) mrsas_kill_adapter(instance);
6664 
6665 			return;
6666 		} else {
6667 			if (cmd->retry_count_for_ocr <=	 IO_RETRY_COUNT) {
6668 				if (instance->adapterresetinprogress == 0) {
6669 					if (instance->tbolt) {
6670 						(void) mrsas_tbolt_reset_ppc(
6671 						    instance);
6672 					} else {
6673 						(void) mrsas_reset_ppc(
6674 						    instance);
6675 					}
6676 				}
6677 			} else {
6678 				dev_err(instance->dip, CE_WARN,
6679 				    "io_timeout_checker: "
6680 				    "cmd %p cmd->index %d "
6681 				    "timed out even after 3 resets: "
6682 				    "so KILL adapter", (void *)cmd, cmd->index);
6683 
6684 				mrsas_print_cmd_details(instance, cmd, 0xDD);
6685 
6686 				if (instance->tbolt)
6687 					mrsas_tbolt_kill_adapter(instance);
6688 				else
6689 					(void) mrsas_kill_adapter(instance);
6690 				return;
6691 			}
6692 		}
6693 	}
6694 	con_log(CL_ANN, (CE_NOTE, "mrsas: "
6695 	    "schedule next timeout check: "
6696 	    "do timeout \n"));
6697 	instance->timeout_id =
6698 	    timeout(io_timeout_checker, (void *)instance,
6699 	    drv_usectohz(MRSAS_1_SECOND));
6700 }
6701 
6702 static uint32_t
6703 read_fw_status_reg_ppc(struct mrsas_instance *instance)
6704 {
6705 	return ((uint32_t)RD_OB_SCRATCH_PAD_0(instance));
6706 }
6707 
6708 static void
6709 issue_cmd_ppc(struct mrsas_cmd *cmd, struct mrsas_instance *instance)
6710 {
6711 	struct scsi_pkt *pkt;
6712 	atomic_inc_16(&instance->fw_outstanding);
6713 
6714 	pkt = cmd->pkt;
6715 	if (pkt) {
6716 		con_log(CL_DLEVEL1, (CE_NOTE, "%llx : issue_cmd_ppc:"
6717 		    "ISSUED CMD TO FW : called : cmd:"
6718 		    ": %p instance : %p pkt : %p pkt_time : %x\n",
6719 		    gethrtime(), (void *)cmd, (void *)instance,
6720 		    (void *)pkt, cmd->drv_pkt_time));
6721 		if (instance->adapterresetinprogress) {
6722 			cmd->drv_pkt_time = (uint16_t)debug_timeout_g;
6723 			con_log(CL_ANN1, (CE_NOTE, "Reset the scsi_pkt timer"));
6724 		} else {
6725 			push_pending_mfi_pkt(instance, cmd);
6726 		}
6727 
6728 	} else {
6729 		con_log(CL_DLEVEL1, (CE_NOTE, "%llx : issue_cmd_ppc:"
6730 		    "ISSUED CMD TO FW : called : cmd : %p, instance: %p"
6731 		    "(NO PKT)\n", gethrtime(), (void *)cmd, (void *)instance));
6732 	}
6733 
6734 	mutex_enter(&instance->reg_write_mtx);
6735 	/* Issue the command to the FW */
6736 	WR_IB_PICK_QPORT((cmd->frame_phys_addr) |
6737 	    (((cmd->frame_count - 1) << 1) | 1), instance);
6738 	mutex_exit(&instance->reg_write_mtx);
6739 
6740 }
6741 
6742 /*
6743  * issue_cmd_in_sync_mode
6744  */
6745 static int
6746 issue_cmd_in_sync_mode_ppc(struct mrsas_instance *instance,
6747     struct mrsas_cmd *cmd)
6748 {
6749 	int	i;
6750 	uint32_t	msecs = MFI_POLL_TIMEOUT_SECS * MILLISEC;
6751 	struct mrsas_header *hdr = &cmd->frame->hdr;
6752 
6753 	con_log(CL_ANN1, (CE_NOTE, "issue_cmd_in_sync_mode_ppc: called"));
6754 
6755 	if (instance->adapterresetinprogress) {
6756 		cmd->drv_pkt_time = ddi_get16(
6757 		    cmd->frame_dma_obj.acc_handle, &hdr->timeout);
6758 		if (cmd->drv_pkt_time < debug_timeout_g)
6759 			cmd->drv_pkt_time = (uint16_t)debug_timeout_g;
6760 
6761 		con_log(CL_ANN1, (CE_NOTE, "sync_mode_ppc: "
6762 		    "issue and return in reset case\n"));
6763 		WR_IB_PICK_QPORT((cmd->frame_phys_addr) |
6764 		    (((cmd->frame_count - 1) << 1) | 1), instance);
6765 
6766 		return (DDI_SUCCESS);
6767 	} else {
6768 		con_log(CL_ANN1, (CE_NOTE, "sync_mode_ppc: pushing the pkt\n"));
6769 		push_pending_mfi_pkt(instance, cmd);
6770 	}
6771 
6772 	cmd->cmd_status	= ENODATA;
6773 
6774 	mutex_enter(&instance->reg_write_mtx);
6775 	/* Issue the command to the FW */
6776 	WR_IB_PICK_QPORT((cmd->frame_phys_addr) |
6777 	    (((cmd->frame_count - 1) << 1) | 1), instance);
6778 	mutex_exit(&instance->reg_write_mtx);
6779 
6780 	mutex_enter(&instance->int_cmd_mtx);
6781 	for (i = 0; i < msecs && (cmd->cmd_status == ENODATA); i++) {
6782 		cv_wait(&instance->int_cmd_cv, &instance->int_cmd_mtx);
6783 	}
6784 	mutex_exit(&instance->int_cmd_mtx);
6785 
6786 	con_log(CL_ANN1, (CE_NOTE, "issue_cmd_in_sync_mode_ppc: done"));
6787 
6788 	if (i < (msecs -1)) {
6789 		return (DDI_SUCCESS);
6790 	} else {
6791 		return (DDI_FAILURE);
6792 	}
6793 }
6794 
6795 /*
6796  * issue_cmd_in_poll_mode
6797  */
6798 static int
6799 issue_cmd_in_poll_mode_ppc(struct mrsas_instance *instance,
6800     struct mrsas_cmd *cmd)
6801 {
6802 	int		i;
6803 	uint16_t	flags;
6804 	uint32_t	msecs = MFI_POLL_TIMEOUT_SECS * MILLISEC;
6805 	struct mrsas_header *frame_hdr;
6806 
6807 	con_log(CL_ANN1, (CE_NOTE, "issue_cmd_in_poll_mode_ppc: called"));
6808 
6809 	frame_hdr = (struct mrsas_header *)cmd->frame;
6810 	ddi_put8(cmd->frame_dma_obj.acc_handle, &frame_hdr->cmd_status,
6811 	    MFI_CMD_STATUS_POLL_MODE);
6812 	flags = ddi_get16(cmd->frame_dma_obj.acc_handle, &frame_hdr->flags);
6813 	flags	|= MFI_FRAME_DONT_POST_IN_REPLY_QUEUE;
6814 
6815 	ddi_put16(cmd->frame_dma_obj.acc_handle, &frame_hdr->flags, flags);
6816 
6817 	/* issue the frame using inbound queue port */
6818 	WR_IB_PICK_QPORT((cmd->frame_phys_addr) |
6819 	    (((cmd->frame_count - 1) << 1) | 1), instance);
6820 
6821 	/* wait for cmd_status to change from 0xFF */
6822 	for (i = 0; i < msecs && (
6823 	    ddi_get8(cmd->frame_dma_obj.acc_handle, &frame_hdr->cmd_status)
6824 	    == MFI_CMD_STATUS_POLL_MODE); i++) {
6825 		drv_usecwait(MILLISEC); /* wait for 1000 usecs */
6826 	}
6827 
6828 	if (ddi_get8(cmd->frame_dma_obj.acc_handle, &frame_hdr->cmd_status)
6829 	    == MFI_CMD_STATUS_POLL_MODE) {
6830 		con_log(CL_ANN, (CE_NOTE, "issue_cmd_in_poll_mode: "
6831 		    "cmd polling timed out"));
6832 		return (DDI_FAILURE);
6833 	}
6834 
6835 	return (DDI_SUCCESS);
6836 }
6837 
6838 static void
6839 enable_intr_ppc(struct mrsas_instance *instance)
6840 {
6841 	uint32_t	mask;
6842 
6843 	con_log(CL_ANN1, (CE_NOTE, "enable_intr_ppc: called"));
6844 
6845 	if (instance->skinny) {
6846 		/* For SKINNY, write ~0x1, from BSD's mfi driver. */
6847 		WR_OB_INTR_MASK(0xfffffffe, instance);
6848 	} else {
6849 		/* WR_OB_DOORBELL_CLEAR(0xFFFFFFFF, instance); */
6850 		WR_OB_DOORBELL_CLEAR(OB_DOORBELL_CLEAR_MASK, instance);
6851 
6852 		/* WR_OB_INTR_MASK(~0x80000000, instance); */
6853 		WR_OB_INTR_MASK(~(MFI_REPLY_2108_MESSAGE_INTR_MASK), instance);
6854 	}
6855 
6856 	/* dummy read to force PCI flush */
6857 	mask = RD_OB_INTR_MASK(instance);
6858 
6859 	con_log(CL_ANN1, (CE_NOTE, "enable_intr_ppc: "
6860 	    "outbound_intr_mask = 0x%x", mask));
6861 }
6862 
6863 static void
6864 disable_intr_ppc(struct mrsas_instance *instance)
6865 {
6866 	uint32_t	mask;
6867 
6868 	con_log(CL_ANN1, (CE_NOTE, "disable_intr_ppc: called"));
6869 
6870 	con_log(CL_ANN1, (CE_NOTE, "disable_intr_ppc: before : "
6871 	    "outbound_intr_mask = 0x%x", RD_OB_INTR_MASK(instance)));
6872 
6873 	/* For now, assume there are no extras needed for Skinny support. */
6874 
6875 	WR_OB_INTR_MASK(OB_INTR_MASK, instance);
6876 
6877 	con_log(CL_ANN1, (CE_NOTE, "disable_intr_ppc: after : "
6878 	    "outbound_intr_mask = 0x%x", RD_OB_INTR_MASK(instance)));
6879 
6880 	/* dummy read to force PCI flush */
6881 	mask = RD_OB_INTR_MASK(instance);
6882 #ifdef lint
6883 	mask = mask;
6884 #endif
6885 }
6886 
6887 static int
6888 intr_ack_ppc(struct mrsas_instance *instance)
6889 {
6890 	uint32_t	status;
6891 	int ret = DDI_INTR_CLAIMED;
6892 
6893 	con_log(CL_ANN1, (CE_NOTE, "intr_ack_ppc: called"));
6894 
6895 	/* check if it is our interrupt */
6896 	status = RD_OB_INTR_STATUS(instance);
6897 
6898 	con_log(CL_ANN1, (CE_NOTE, "intr_ack_ppc: status = 0x%x", status));
6899 
6900 	/*
6901 	 * NOTE:  Some drivers call out SKINNY here, but the return is the same
6902 	 * for SKINNY and 2108.
6903 	 */
6904 	if (!(status & MFI_REPLY_2108_MESSAGE_INTR)) {
6905 		ret = DDI_INTR_UNCLAIMED;
6906 	}
6907 
6908 	if (mrsas_check_acc_handle(instance->regmap_handle) != DDI_SUCCESS) {
6909 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_LOST);
6910 		ret = DDI_INTR_UNCLAIMED;
6911 	}
6912 
6913 	if (ret == DDI_INTR_UNCLAIMED) {
6914 		return (ret);
6915 	}
6916 
6917 	/*
6918 	 * Clear the interrupt by writing back the same value.
6919 	 * Another case where SKINNY is slightly different.
6920 	 */
6921 	if (instance->skinny) {
6922 		WR_OB_INTR_STATUS(status, instance);
6923 	} else {
6924 		WR_OB_DOORBELL_CLEAR(status, instance);
6925 	}
6926 
6927 	/* dummy READ */
6928 	status = RD_OB_INTR_STATUS(instance);
6929 
6930 	con_log(CL_ANN1, (CE_NOTE, "intr_ack_ppc: interrupt cleared"));
6931 
6932 	return (ret);
6933 }
6934 
6935 /*
6936  * Marks HBA as bad. This will be called either when an
6937  * IO packet times out even after 3 FW resets
6938  * or FW is found to be fault even after 3 continuous resets.
6939  */
6940 
6941 static int
6942 mrsas_kill_adapter(struct mrsas_instance *instance)
6943 {
6944 	if (instance->deadadapter == 1)
6945 		return (DDI_FAILURE);
6946 
6947 	con_log(CL_ANN1, (CE_NOTE, "mrsas_kill_adapter: "
6948 	    "Writing to doorbell with MFI_STOP_ADP "));
6949 	mutex_enter(&instance->ocr_flags_mtx);
6950 	instance->deadadapter = 1;
6951 	mutex_exit(&instance->ocr_flags_mtx);
6952 	instance->func_ptr->disable_intr(instance);
6953 	WR_IB_DOORBELL(MFI_STOP_ADP, instance);
6954 	(void) mrsas_complete_pending_cmds(instance);
6955 	return (DDI_SUCCESS);
6956 }
6957 
6958 
6959 static int
6960 mrsas_reset_ppc(struct mrsas_instance *instance)
6961 {
6962 	uint32_t status;
6963 	uint32_t retry = 0;
6964 	uint32_t cur_abs_reg_val;
6965 	uint32_t fw_state;
6966 
6967 	con_log(CL_ANN, (CE_NOTE, "chkpnt:%s:%d", __func__, __LINE__));
6968 
6969 	if (instance->deadadapter == 1) {
6970 		dev_err(instance->dip, CE_WARN, "mrsas_reset_ppc: "
6971 		    "no more resets as HBA has been marked dead ");
6972 		return (DDI_FAILURE);
6973 	}
6974 	mutex_enter(&instance->ocr_flags_mtx);
6975 	instance->adapterresetinprogress = 1;
6976 	mutex_exit(&instance->ocr_flags_mtx);
6977 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: adpterresetinprogress "
6978 	    "flag set, time %llx", gethrtime()));
6979 
6980 	instance->func_ptr->disable_intr(instance);
6981 retry_reset:
6982 	WR_IB_WRITE_SEQ(0, instance);
6983 	WR_IB_WRITE_SEQ(4, instance);
6984 	WR_IB_WRITE_SEQ(0xb, instance);
6985 	WR_IB_WRITE_SEQ(2, instance);
6986 	WR_IB_WRITE_SEQ(7, instance);
6987 	WR_IB_WRITE_SEQ(0xd, instance);
6988 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: magic number written "
6989 	    "to write sequence register\n"));
6990 	delay(100 * drv_usectohz(MILLISEC));
6991 	status = RD_OB_DRWE(instance);
6992 
6993 	while (!(status & DIAG_WRITE_ENABLE)) {
6994 		delay(100 * drv_usectohz(MILLISEC));
6995 		status = RD_OB_DRWE(instance);
6996 		if (retry++ == 100) {
6997 			dev_err(instance->dip, CE_WARN,
6998 			    "mrsas_reset_ppc: DRWE bit "
6999 			    "check retry count %d", retry);
7000 			return (DDI_FAILURE);
7001 		}
7002 	}
7003 	WR_IB_DRWE(status | DIAG_RESET_ADAPTER, instance);
7004 	delay(100 * drv_usectohz(MILLISEC));
7005 	status = RD_OB_DRWE(instance);
7006 	while (status & DIAG_RESET_ADAPTER) {
7007 		delay(100 * drv_usectohz(MILLISEC));
7008 		status = RD_OB_DRWE(instance);
7009 		if (retry++ == 100) {
7010 			dev_err(instance->dip, CE_WARN, "mrsas_reset_ppc: "
7011 			    "RESET FAILED. KILL adapter called.");
7012 
7013 			(void) mrsas_kill_adapter(instance);
7014 			return (DDI_FAILURE);
7015 		}
7016 	}
7017 	con_log(CL_ANN, (CE_NOTE, "mrsas_reset_ppc: Adapter reset complete"));
7018 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
7019 	    "Calling mfi_state_transition_to_ready"));
7020 
7021 	/* Mark HBA as bad, if FW is fault after 3 continuous resets */
7022 	if (mfi_state_transition_to_ready(instance) ||
7023 	    debug_fw_faults_after_ocr_g == 1) {
7024 		cur_abs_reg_val =
7025 		    instance->func_ptr->read_fw_status_reg(instance);
7026 		fw_state	= cur_abs_reg_val & MFI_STATE_MASK;
7027 
7028 #ifdef OCRDEBUG
7029 		con_log(CL_ANN1, (CE_NOTE,
7030 		    "mrsas_reset_ppc :before fake: FW is not ready "
7031 		    "FW state = 0x%x", fw_state));
7032 		if (debug_fw_faults_after_ocr_g == 1)
7033 			fw_state = MFI_STATE_FAULT;
7034 #endif
7035 
7036 		con_log(CL_ANN1, (CE_NOTE,  "mrsas_reset_ppc : FW is not ready "
7037 		    "FW state = 0x%x", fw_state));
7038 
7039 		if (fw_state == MFI_STATE_FAULT) {
7040 			/* increment the count */
7041 			instance->fw_fault_count_after_ocr++;
7042 			if (instance->fw_fault_count_after_ocr
7043 			    < MAX_FW_RESET_COUNT) {
7044 				dev_err(instance->dip, CE_WARN,
7045 				    "mrsas_reset_ppc: "
7046 				    "FW is in fault after OCR count %d "
7047 				    "Retry Reset",
7048 				    instance->fw_fault_count_after_ocr);
7049 				goto retry_reset;
7050 
7051 			} else {
7052 				dev_err(instance->dip, CE_WARN,
7053 				    "mrsas_reset_ppc: "
7054 				    "Max Reset Count exceeded >%d"
7055 				    "Mark HBA as bad, KILL adapter",
7056 				    MAX_FW_RESET_COUNT);
7057 
7058 				(void) mrsas_kill_adapter(instance);
7059 				return (DDI_FAILURE);
7060 			}
7061 		}
7062 	}
7063 	/* reset the counter as FW is up after OCR */
7064 	instance->fw_fault_count_after_ocr = 0;
7065 
7066 
7067 	ddi_put32(instance->mfi_internal_dma_obj.acc_handle,
7068 	    instance->producer, 0);
7069 
7070 	ddi_put32(instance->mfi_internal_dma_obj.acc_handle,
7071 	    instance->consumer, 0);
7072 
7073 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
7074 	    " after resetting produconsumer chck indexs:"
7075 	    "producer %x consumer %x", *instance->producer,
7076 	    *instance->consumer));
7077 
7078 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
7079 	    "Calling mrsas_issue_init_mfi"));
7080 	(void) mrsas_issue_init_mfi(instance);
7081 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
7082 	    "mrsas_issue_init_mfi Done"));
7083 
7084 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
7085 	    "Calling mrsas_print_pending_cmd\n"));
7086 	(void) mrsas_print_pending_cmds(instance);
7087 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
7088 	    "mrsas_print_pending_cmd done\n"));
7089 
7090 	instance->func_ptr->enable_intr(instance);
7091 	instance->fw_outstanding = 0;
7092 
7093 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
7094 	    "Calling mrsas_issue_pending_cmds"));
7095 	(void) mrsas_issue_pending_cmds(instance);
7096 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
7097 	    "issue_pending_cmds done.\n"));
7098 
7099 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
7100 	    "Calling aen registration"));
7101 
7102 
7103 	instance->aen_cmd->retry_count_for_ocr = 0;
7104 	instance->aen_cmd->drv_pkt_time = 0;
7105 
7106 	instance->func_ptr->issue_cmd(instance->aen_cmd, instance);
7107 	con_log(CL_ANN1, (CE_NOTE, "Unsetting adpresetinprogress flag.\n"));
7108 
7109 	mutex_enter(&instance->ocr_flags_mtx);
7110 	instance->adapterresetinprogress = 0;
7111 	mutex_exit(&instance->ocr_flags_mtx);
7112 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc: "
7113 	    "adpterresetinprogress flag unset"));
7114 
7115 	con_log(CL_ANN1, (CE_NOTE, "mrsas_reset_ppc done\n"));
7116 	return (DDI_SUCCESS);
7117 }
7118 
7119 /*
7120  * FMA functions.
7121  */
7122 int
7123 mrsas_common_check(struct mrsas_instance *instance, struct  mrsas_cmd *cmd)
7124 {
7125 	int ret = DDI_SUCCESS;
7126 
7127 	if (cmd != NULL &&
7128 	    mrsas_check_dma_handle(cmd->frame_dma_obj.dma_handle) !=
7129 	    DDI_SUCCESS) {
7130 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
7131 		if (cmd->pkt != NULL) {
7132 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
7133 			cmd->pkt->pkt_statistics = 0;
7134 		}
7135 		ret = DDI_FAILURE;
7136 	}
7137 	if (mrsas_check_dma_handle(instance->mfi_internal_dma_obj.dma_handle)
7138 	    != DDI_SUCCESS) {
7139 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
7140 		if (cmd != NULL && cmd->pkt != NULL) {
7141 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
7142 			cmd->pkt->pkt_statistics = 0;
7143 		}
7144 		ret = DDI_FAILURE;
7145 	}
7146 	if (mrsas_check_dma_handle(instance->mfi_evt_detail_obj.dma_handle) !=
7147 	    DDI_SUCCESS) {
7148 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
7149 		if (cmd != NULL && cmd->pkt != NULL) {
7150 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
7151 			cmd->pkt->pkt_statistics = 0;
7152 		}
7153 		ret = DDI_FAILURE;
7154 	}
7155 	if (mrsas_check_acc_handle(instance->regmap_handle) != DDI_SUCCESS) {
7156 		ddi_fm_service_impact(instance->dip, DDI_SERVICE_UNAFFECTED);
7157 
7158 		ddi_fm_acc_err_clear(instance->regmap_handle, DDI_FME_VER0);
7159 
7160 		if (cmd != NULL && cmd->pkt != NULL) {
7161 			cmd->pkt->pkt_reason = CMD_TRAN_ERR;
7162 			cmd->pkt->pkt_statistics = 0;
7163 		}
7164 		ret = DDI_FAILURE;
7165 	}
7166 
7167 	return (ret);
7168 }
7169 
7170 /*ARGSUSED*/
7171 static int
7172 mrsas_fm_error_cb(dev_info_t *dip, ddi_fm_error_t *err, const void *impl_data)
7173 {
7174 	/*
7175 	 * as the driver can always deal with an error in any dma or
7176 	 * access handle, we can just return the fme_status value.
7177 	 */
7178 	pci_ereport_post(dip, err, NULL);
7179 	return (err->fme_status);
7180 }
7181 
7182 static void
7183 mrsas_fm_init(struct mrsas_instance *instance)
7184 {
7185 	/* Need to change iblock to priority for new MSI intr */
7186 	ddi_iblock_cookie_t fm_ibc;
7187 
7188 	/* Only register with IO Fault Services if we have some capability */
7189 	if (instance->fm_capabilities) {
7190 		/* Adjust access and dma attributes for FMA */
7191 		endian_attr.devacc_attr_access = DDI_FLAGERR_ACC;
7192 		mrsas_generic_dma_attr.dma_attr_flags = DDI_DMA_FLAGERR;
7193 
7194 		/*
7195 		 * Register capabilities with IO Fault Services.
7196 		 * fm_capabilities will be updated to indicate
7197 		 * capabilities actually supported (not requested.)
7198 		 */
7199 
7200 		ddi_fm_init(instance->dip, &instance->fm_capabilities, &fm_ibc);
7201 
7202 		/*
7203 		 * Initialize pci ereport capabilities if ereport
7204 		 * capable (should always be.)
7205 		 */
7206 
7207 		if (DDI_FM_EREPORT_CAP(instance->fm_capabilities) ||
7208 		    DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
7209 			pci_ereport_setup(instance->dip);
7210 		}
7211 
7212 		/*
7213 		 * Register error callback if error callback capable.
7214 		 */
7215 		if (DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
7216 			ddi_fm_handler_register(instance->dip,
7217 			    mrsas_fm_error_cb, (void*) instance);
7218 		}
7219 	} else {
7220 		endian_attr.devacc_attr_access = DDI_DEFAULT_ACC;
7221 		mrsas_generic_dma_attr.dma_attr_flags = 0;
7222 	}
7223 }
7224 
7225 static void
7226 mrsas_fm_fini(struct mrsas_instance *instance)
7227 {
7228 	/* Only unregister FMA capabilities if registered */
7229 	if (instance->fm_capabilities) {
7230 		/*
7231 		 * Un-register error callback if error callback capable.
7232 		 */
7233 		if (DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
7234 			ddi_fm_handler_unregister(instance->dip);
7235 		}
7236 
7237 		/*
7238 		 * Release any resources allocated by pci_ereport_setup()
7239 		 */
7240 		if (DDI_FM_EREPORT_CAP(instance->fm_capabilities) ||
7241 		    DDI_FM_ERRCB_CAP(instance->fm_capabilities)) {
7242 			pci_ereport_teardown(instance->dip);
7243 		}
7244 
7245 		/* Unregister from IO Fault Services */
7246 		ddi_fm_fini(instance->dip);
7247 
7248 		/* Adjust access and dma attributes for FMA */
7249 		endian_attr.devacc_attr_access = DDI_DEFAULT_ACC;
7250 		mrsas_generic_dma_attr.dma_attr_flags = 0;
7251 	}
7252 }
7253 
7254 int
7255 mrsas_check_acc_handle(ddi_acc_handle_t handle)
7256 {
7257 	ddi_fm_error_t de;
7258 
7259 	if (handle == NULL) {
7260 		return (DDI_FAILURE);
7261 	}
7262 
7263 	ddi_fm_acc_err_get(handle, &de, DDI_FME_VERSION);
7264 
7265 	return (de.fme_status);
7266 }
7267 
7268 int
7269 mrsas_check_dma_handle(ddi_dma_handle_t handle)
7270 {
7271 	ddi_fm_error_t de;
7272 
7273 	if (handle == NULL) {
7274 		return (DDI_FAILURE);
7275 	}
7276 
7277 	ddi_fm_dma_err_get(handle, &de, DDI_FME_VERSION);
7278 
7279 	return (de.fme_status);
7280 }
7281 
7282 void
7283 mrsas_fm_ereport(struct mrsas_instance *instance, char *detail)
7284 {
7285 	uint64_t ena;
7286 	char buf[FM_MAX_CLASS];
7287 
7288 	(void) snprintf(buf, FM_MAX_CLASS, "%s.%s", DDI_FM_DEVICE, detail);
7289 	ena = fm_ena_generate(0, FM_ENA_FMT1);
7290 	if (DDI_FM_EREPORT_CAP(instance->fm_capabilities)) {
7291 		ddi_fm_ereport_post(instance->dip, buf, ena, DDI_NOSLEEP,
7292 		    FM_VERSION, DATA_TYPE_UINT8, FM_EREPORT_VERSION, NULL);
7293 	}
7294 }
7295 
7296 static int
7297 mrsas_add_intrs(struct mrsas_instance *instance, int intr_type)
7298 {
7299 
7300 	dev_info_t *dip = instance->dip;
7301 	int	avail, actual, count;
7302 	int	i, flag, ret;
7303 
7304 	con_log(CL_DLEVEL1, (CE_NOTE, "mrsas_add_intrs: intr_type = %x",
7305 	    intr_type));
7306 
7307 	/* Get number of interrupts */
7308 	ret = ddi_intr_get_nintrs(dip, intr_type, &count);
7309 	if ((ret != DDI_SUCCESS) || (count == 0)) {
7310 		con_log(CL_ANN, (CE_WARN, "ddi_intr_get_nintrs() failed:"
7311 		    "ret %d count %d", ret, count));
7312 
7313 		return (DDI_FAILURE);
7314 	}
7315 
7316 	con_log(CL_DLEVEL1, (CE_NOTE, "mrsas_add_intrs: count = %d ", count));
7317 
7318 	/* Get number of available interrupts */
7319 	ret = ddi_intr_get_navail(dip, intr_type, &avail);
7320 	if ((ret != DDI_SUCCESS) || (avail == 0)) {
7321 		con_log(CL_ANN, (CE_WARN, "ddi_intr_get_navail() failed:"
7322 		    "ret %d avail %d", ret, avail));
7323 
7324 		return (DDI_FAILURE);
7325 	}
7326 	con_log(CL_DLEVEL1, (CE_NOTE, "mrsas_add_intrs: avail = %d ", avail));
7327 
7328 	/* Only one interrupt routine. So limit the count to 1 */
7329 	if (count > 1) {
7330 		count = 1;
7331 	}
7332 
7333 	/*
7334 	 * Allocate an array of interrupt handlers. Currently we support
7335 	 * only one interrupt. The framework can be extended later.
7336 	 */
7337 	instance->intr_htable_size = count * sizeof (ddi_intr_handle_t);
7338 	instance->intr_htable = kmem_zalloc(instance->intr_htable_size,
7339 	    KM_SLEEP);
7340 	ASSERT(instance->intr_htable);
7341 
7342 	flag = ((intr_type == DDI_INTR_TYPE_MSI) ||
7343 	    (intr_type == DDI_INTR_TYPE_MSIX)) ?
7344 	    DDI_INTR_ALLOC_STRICT : DDI_INTR_ALLOC_NORMAL;
7345 
7346 	/* Allocate interrupt */
7347 	ret = ddi_intr_alloc(dip, instance->intr_htable, intr_type, 0,
7348 	    count, &actual, flag);
7349 
7350 	if ((ret != DDI_SUCCESS) || (actual == 0)) {
7351 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
7352 		    "avail = %d", avail));
7353 		goto mrsas_free_htable;
7354 	}
7355 
7356 	if (actual < count) {
7357 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
7358 		    "Requested = %d  Received = %d", count, actual));
7359 	}
7360 	instance->intr_cnt = actual;
7361 
7362 	/*
7363 	 * Get the priority of the interrupt allocated.
7364 	 */
7365 	if ((ret = ddi_intr_get_pri(instance->intr_htable[0],
7366 	    &instance->intr_pri)) != DDI_SUCCESS) {
7367 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
7368 		    "get priority call failed"));
7369 		goto mrsas_free_handles;
7370 	}
7371 
7372 	/*
7373 	 * Test for high level mutex. we don't support them.
7374 	 */
7375 	if (instance->intr_pri >= ddi_intr_get_hilevel_pri()) {
7376 		con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs: "
7377 		    "High level interrupts not supported."));
7378 		goto mrsas_free_handles;
7379 	}
7380 
7381 	con_log(CL_DLEVEL1, (CE_NOTE, "mrsas_add_intrs: intr_pri = 0x%x ",
7382 	    instance->intr_pri));
7383 
7384 	/* Call ddi_intr_add_handler() */
7385 	for (i = 0; i < actual; i++) {
7386 		ret = ddi_intr_add_handler(instance->intr_htable[i],
7387 		    (ddi_intr_handler_t *)mrsas_isr, (caddr_t)instance,
7388 		    (caddr_t)(uintptr_t)i);
7389 
7390 		if (ret != DDI_SUCCESS) {
7391 			con_log(CL_ANN, (CE_WARN, "mrsas_add_intrs:"
7392 			    "failed %d", ret));
7393 			goto mrsas_free_handles;
7394 		}
7395 
7396 	}
7397 
7398 	con_log(CL_DLEVEL1, (CE_NOTE, " ddi_intr_add_handler done"));
7399 
7400 	if ((ret = ddi_intr_get_cap(instance->intr_htable[0],
7401 	    &instance->intr_cap)) != DDI_SUCCESS) {
7402 		con_log(CL_ANN, (CE_WARN, "ddi_intr_get_cap() failed %d",
7403 		    ret));
7404 		goto mrsas_free_handlers;
7405 	}
7406 
7407 	if (instance->intr_cap &  DDI_INTR_FLAG_BLOCK) {
7408 		con_log(CL_ANN, (CE_WARN, "Calling ddi_intr_block _enable"));
7409 
7410 		(void) ddi_intr_block_enable(instance->intr_htable,
7411 		    instance->intr_cnt);
7412 	} else {
7413 		con_log(CL_ANN, (CE_NOTE, " calling ddi_intr_enable"));
7414 
7415 		for (i = 0; i < instance->intr_cnt; i++) {
7416 			(void) ddi_intr_enable(instance->intr_htable[i]);
7417 			con_log(CL_ANN, (CE_NOTE, "ddi intr enable returns "
7418 			    "%d", i));
7419 		}
7420 	}
7421 
7422 	return (DDI_SUCCESS);
7423 
7424 mrsas_free_handlers:
7425 	for (i = 0; i < actual; i++)
7426 		(void) ddi_intr_remove_handler(instance->intr_htable[i]);
7427 
7428 mrsas_free_handles:
7429 	for (i = 0; i < actual; i++)
7430 		(void) ddi_intr_free(instance->intr_htable[i]);
7431 
7432 mrsas_free_htable:
7433 	if (instance->intr_htable != NULL)
7434 		kmem_free(instance->intr_htable, instance->intr_htable_size);
7435 
7436 	instance->intr_htable = NULL;
7437 	instance->intr_htable_size = 0;
7438 
7439 	return (DDI_FAILURE);
7440 
7441 }
7442 
7443 
7444 static void
7445 mrsas_rem_intrs(struct mrsas_instance *instance)
7446 {
7447 	int i;
7448 
7449 	con_log(CL_ANN, (CE_NOTE, "mrsas_rem_intrs called"));
7450 
7451 	/* Disable all interrupts first */
7452 	if (instance->intr_cap & DDI_INTR_FLAG_BLOCK) {
7453 		(void) ddi_intr_block_disable(instance->intr_htable,
7454 		    instance->intr_cnt);
7455 	} else {
7456 		for (i = 0; i < instance->intr_cnt; i++) {
7457 			(void) ddi_intr_disable(instance->intr_htable[i]);
7458 		}
7459 	}
7460 
7461 	/* Remove all the handlers */
7462 
7463 	for (i = 0; i < instance->intr_cnt; i++) {
7464 		(void) ddi_intr_remove_handler(instance->intr_htable[i]);
7465 		(void) ddi_intr_free(instance->intr_htable[i]);
7466 	}
7467 
7468 	if (instance->intr_htable != NULL)
7469 		kmem_free(instance->intr_htable, instance->intr_htable_size);
7470 
7471 	instance->intr_htable = NULL;
7472 	instance->intr_htable_size = 0;
7473 
7474 }
7475 
7476 static int
7477 mrsas_tran_bus_config(dev_info_t *parent, uint_t flags,
7478     ddi_bus_config_op_t op, void *arg, dev_info_t **childp)
7479 {
7480 	struct mrsas_instance *instance;
7481 	int config;
7482 	int rval  = NDI_SUCCESS;
7483 
7484 	char *ptr = NULL;
7485 	int tgt, lun;
7486 
7487 	con_log(CL_ANN1, (CE_NOTE, "Bus config called for op = %x", op));
7488 
7489 	if ((instance = ddi_get_soft_state(mrsas_state,
7490 	    ddi_get_instance(parent))) == NULL) {
7491 		return (NDI_FAILURE);
7492 	}
7493 
7494 	/* Hold nexus during bus_config */
7495 	ndi_devi_enter(parent, &config);
7496 	switch (op) {
7497 	case BUS_CONFIG_ONE: {
7498 
7499 		/* parse wwid/target name out of name given */
7500 		if ((ptr = strchr((char *)arg, '@')) == NULL) {
7501 			rval = NDI_FAILURE;
7502 			break;
7503 		}
7504 		ptr++;
7505 
7506 		if (mrsas_parse_devname(arg, &tgt, &lun) != 0) {
7507 			rval = NDI_FAILURE;
7508 			break;
7509 		}
7510 
7511 		if (lun == 0) {
7512 			rval = mrsas_config_ld(instance, tgt, lun, childp);
7513 #ifdef PDSUPPORT
7514 		} else if ((instance->tbolt || instance->skinny) && lun != 0) {
7515 			rval = mrsas_tbolt_config_pd(instance,
7516 			    tgt, lun, childp);
7517 #endif
7518 		} else {
7519 			rval = NDI_FAILURE;
7520 		}
7521 
7522 		break;
7523 	}
7524 	case BUS_CONFIG_DRIVER:
7525 	case BUS_CONFIG_ALL: {
7526 
7527 		rval = mrsas_config_all_devices(instance);
7528 
7529 		rval = NDI_SUCCESS;
7530 		break;
7531 	}
7532 	}
7533 
7534 	if (rval == NDI_SUCCESS) {
7535 		rval = ndi_busop_bus_config(parent, flags, op, arg, childp, 0);
7536 
7537 	}
7538 	ndi_devi_exit(parent, config);
7539 
7540 	con_log(CL_ANN1, (CE_NOTE, "mrsas_tran_bus_config: rval = %x",
7541 	    rval));
7542 	return (rval);
7543 }
7544 
7545 static int
7546 mrsas_config_all_devices(struct mrsas_instance *instance)
7547 {
7548 	int rval, tgt;
7549 
7550 	for (tgt = 0; tgt < MRDRV_MAX_LD; tgt++) {
7551 		(void) mrsas_config_ld(instance, tgt, 0, NULL);
7552 
7553 	}
7554 
7555 #ifdef PDSUPPORT
7556 	/* Config PD devices connected to the card */
7557 	if (instance->tbolt || instance->skinny) {
7558 		for (tgt = 0; tgt < instance->mr_tbolt_pd_max; tgt++) {
7559 			(void) mrsas_tbolt_config_pd(instance, tgt, 1, NULL);
7560 		}
7561 	}
7562 #endif
7563 
7564 	rval = NDI_SUCCESS;
7565 	return (rval);
7566 }
7567 
7568 static int
7569 mrsas_parse_devname(char *devnm, int *tgt, int *lun)
7570 {
7571 	char devbuf[SCSI_MAXNAMELEN];
7572 	char *addr;
7573 	char *p,  *tp, *lp;
7574 	long num;
7575 
7576 	/* Parse dev name and address */
7577 	(void) strcpy(devbuf, devnm);
7578 	addr = "";
7579 	for (p = devbuf; *p != '\0'; p++) {
7580 		if (*p == '@') {
7581 			addr = p + 1;
7582 			*p = '\0';
7583 		} else if (*p == ':') {
7584 			*p = '\0';
7585 			break;
7586 		}
7587 	}
7588 
7589 	/* Parse target and lun */
7590 	for (p = tp = addr, lp = NULL; *p != '\0'; p++) {
7591 		if (*p == ',') {
7592 			lp = p + 1;
7593 			*p = '\0';
7594 			break;
7595 		}
7596 	}
7597 	if (tgt && tp) {
7598 		if (ddi_strtol(tp, NULL, 0x10, &num)) {
7599 			return (DDI_FAILURE); /* Can declare this as constant */
7600 		}
7601 			*tgt = (int)num;
7602 	}
7603 	if (lun && lp) {
7604 		if (ddi_strtol(lp, NULL, 0x10, &num)) {
7605 			return (DDI_FAILURE);
7606 		}
7607 			*lun = (int)num;
7608 	}
7609 	return (DDI_SUCCESS);  /* Success case */
7610 }
7611 
7612 static int
7613 mrsas_config_ld(struct mrsas_instance *instance, uint16_t tgt,
7614     uint8_t lun, dev_info_t **ldip)
7615 {
7616 	struct scsi_device *sd;
7617 	dev_info_t *child;
7618 	int rval;
7619 
7620 	con_log(CL_DLEVEL1, (CE_NOTE, "mrsas_config_ld: t = %d l = %d",
7621 	    tgt, lun));
7622 
7623 	if ((child = mrsas_find_child(instance, tgt, lun)) != NULL) {
7624 		if (ldip) {
7625 			*ldip = child;
7626 		}
7627 		if (instance->mr_ld_list[tgt].flag != MRDRV_TGT_VALID) {
7628 			rval = mrsas_service_evt(instance, tgt, 0,
7629 			    MRSAS_EVT_UNCONFIG_TGT, NULL);
7630 			con_log(CL_ANN1, (CE_WARN,
7631 			    "mr_sas: DELETING STALE ENTRY rval = %d "
7632 			    "tgt id = %d ", rval, tgt));
7633 			return (NDI_FAILURE);
7634 		}
7635 		return (NDI_SUCCESS);
7636 	}
7637 
7638 	sd = kmem_zalloc(sizeof (struct scsi_device), KM_SLEEP);
7639 	sd->sd_address.a_hba_tran = instance->tran;
7640 	sd->sd_address.a_target = (uint16_t)tgt;
7641 	sd->sd_address.a_lun = (uint8_t)lun;
7642 
7643 	if (scsi_hba_probe(sd, NULL) == SCSIPROBE_EXISTS)
7644 		rval = mrsas_config_scsi_device(instance, sd, ldip);
7645 	else
7646 		rval = NDI_FAILURE;
7647 
7648 	/* sd_unprobe is blank now. Free buffer manually */
7649 	if (sd->sd_inq) {
7650 		kmem_free(sd->sd_inq, SUN_INQSIZE);
7651 		sd->sd_inq = (struct scsi_inquiry *)NULL;
7652 	}
7653 
7654 	kmem_free(sd, sizeof (struct scsi_device));
7655 	con_log(CL_DLEVEL1, (CE_NOTE, "mrsas_config_ld: return rval = %d",
7656 	    rval));
7657 	return (rval);
7658 }
7659 
7660 int
7661 mrsas_config_scsi_device(struct mrsas_instance *instance,
7662     struct scsi_device *sd, dev_info_t **dipp)
7663 {
7664 	char *nodename = NULL;
7665 	char **compatible = NULL;
7666 	int ncompatible = 0;
7667 	char *childname;
7668 	dev_info_t *ldip = NULL;
7669 	int tgt = sd->sd_address.a_target;
7670 	int lun = sd->sd_address.a_lun;
7671 	int dtype = sd->sd_inq->inq_dtype & DTYPE_MASK;
7672 	int rval;
7673 
7674 	con_log(CL_DLEVEL1, (CE_NOTE, "mr_sas: scsi_device t%dL%d", tgt, lun));
7675 	scsi_hba_nodename_compatible_get(sd->sd_inq, NULL, dtype,
7676 	    NULL, &nodename, &compatible, &ncompatible);
7677 
7678 	if (nodename == NULL) {
7679 		con_log(CL_ANN1, (CE_WARN, "mr_sas: Found no compatible driver "
7680 		    "for t%dL%d", tgt, lun));
7681 		rval = NDI_FAILURE;
7682 		goto finish;
7683 	}
7684 
7685 	childname = (dtype == DTYPE_DIRECT) ? "sd" : nodename;
7686 	con_log(CL_DLEVEL1, (CE_NOTE,
7687 	    "mr_sas: Childname = %2s nodename = %s", childname, nodename));
7688 
7689 	/* Create a dev node */
7690 	rval = ndi_devi_alloc(instance->dip, childname, DEVI_SID_NODEID, &ldip);
7691 	con_log(CL_DLEVEL1, (CE_NOTE,
7692 	    "mr_sas_config_scsi_device: ndi_devi_alloc rval = %x", rval));
7693 	if (rval == NDI_SUCCESS) {
7694 		if (ndi_prop_update_int(DDI_DEV_T_NONE, ldip, "target", tgt) !=
7695 		    DDI_PROP_SUCCESS) {
7696 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to create "
7697 			    "property for t%dl%d target", tgt, lun));
7698 			rval = NDI_FAILURE;
7699 			goto finish;
7700 		}
7701 		if (ndi_prop_update_int(DDI_DEV_T_NONE, ldip, "lun", lun) !=
7702 		    DDI_PROP_SUCCESS) {
7703 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to create "
7704 			    "property for t%dl%d lun", tgt, lun));
7705 			rval = NDI_FAILURE;
7706 			goto finish;
7707 		}
7708 
7709 		if (ndi_prop_update_string_array(DDI_DEV_T_NONE, ldip,
7710 		    "compatible", compatible, ncompatible) !=
7711 		    DDI_PROP_SUCCESS) {
7712 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to create "
7713 			    "property for t%dl%d compatible", tgt, lun));
7714 			rval = NDI_FAILURE;
7715 			goto finish;
7716 		}
7717 
7718 		rval = ndi_devi_online(ldip, NDI_ONLINE_ATTACH);
7719 		if (rval != NDI_SUCCESS) {
7720 			con_log(CL_ANN1, (CE_WARN, "mr_sas: unable to online "
7721 			    "t%dl%d", tgt, lun));
7722 			ndi_prop_remove_all(ldip);
7723 			(void) ndi_devi_free(ldip);
7724 		} else {
7725 			con_log(CL_ANN1, (CE_CONT, "mr_sas: online Done :"
7726 			    "0 t%dl%d", tgt, lun));
7727 		}
7728 
7729 	}
7730 finish:
7731 	if (dipp) {
7732 		*dipp = ldip;
7733 	}
7734 
7735 	con_log(CL_DLEVEL1, (CE_NOTE,
7736 	    "mr_sas: config_scsi_device rval = %d t%dL%d",
7737 	    rval, tgt, lun));
7738 	scsi_hba_nodename_compatible_free(nodename, compatible);
7739 	return (rval);
7740 }
7741 
7742 /*ARGSUSED*/
7743 int
7744 mrsas_service_evt(struct mrsas_instance *instance, int tgt, int lun, int event,
7745     uint64_t wwn)
7746 {
7747 	struct mrsas_eventinfo *mrevt = NULL;
7748 
7749 	con_log(CL_ANN1, (CE_NOTE,
7750 	    "mrsas_service_evt called for t%dl%d event = %d",
7751 	    tgt, lun, event));
7752 
7753 	if ((instance->taskq == NULL) || (mrevt =
7754 	    kmem_zalloc(sizeof (struct mrsas_eventinfo), KM_NOSLEEP)) == NULL) {
7755 		return (ENOMEM);
7756 	}
7757 
7758 	mrevt->instance = instance;
7759 	mrevt->tgt = tgt;
7760 	mrevt->lun = lun;
7761 	mrevt->event = event;
7762 	mrevt->wwn = wwn;
7763 
7764 	if ((ddi_taskq_dispatch(instance->taskq,
7765 	    (void (*)(void *))mrsas_issue_evt_taskq, mrevt, DDI_NOSLEEP)) !=
7766 	    DDI_SUCCESS) {
7767 		con_log(CL_ANN1, (CE_NOTE,
7768 		    "mr_sas: Event task failed for t%dl%d event = %d",
7769 		    tgt, lun, event));
7770 		kmem_free(mrevt, sizeof (struct mrsas_eventinfo));
7771 		return (DDI_FAILURE);
7772 	}
7773 	DTRACE_PROBE3(service_evt, int, tgt, int, lun, int, event);
7774 	return (DDI_SUCCESS);
7775 }
7776 
7777 static void
7778 mrsas_issue_evt_taskq(struct mrsas_eventinfo *mrevt)
7779 {
7780 	struct mrsas_instance *instance = mrevt->instance;
7781 	dev_info_t *dip, *pdip;
7782 	int circ1 = 0;
7783 	char *devname;
7784 
7785 	con_log(CL_ANN1, (CE_NOTE, "mrsas_issue_evt_taskq: called for"
7786 	    " tgt %d lun %d event %d",
7787 	    mrevt->tgt, mrevt->lun, mrevt->event));
7788 
7789 	if (mrevt->tgt < MRDRV_MAX_LD && mrevt->lun == 0) {
7790 		mutex_enter(&instance->config_dev_mtx);
7791 		dip = instance->mr_ld_list[mrevt->tgt].dip;
7792 		mutex_exit(&instance->config_dev_mtx);
7793 #ifdef PDSUPPORT
7794 	} else {
7795 		mutex_enter(&instance->config_dev_mtx);
7796 		dip = instance->mr_tbolt_pd_list[mrevt->tgt].dip;
7797 		mutex_exit(&instance->config_dev_mtx);
7798 #endif
7799 	}
7800 
7801 
7802 	ndi_devi_enter(instance->dip, &circ1);
7803 	switch (mrevt->event) {
7804 	case MRSAS_EVT_CONFIG_TGT:
7805 		if (dip == NULL) {
7806 
7807 			if (mrevt->lun == 0) {
7808 				(void) mrsas_config_ld(instance, mrevt->tgt,
7809 				    0, NULL);
7810 #ifdef PDSUPPORT
7811 			} else if (instance->tbolt || instance->skinny) {
7812 				(void) mrsas_tbolt_config_pd(instance,
7813 				    mrevt->tgt,
7814 				    1, NULL);
7815 #endif
7816 			}
7817 			con_log(CL_ANN1, (CE_NOTE,
7818 			    "mr_sas: EVT_CONFIG_TGT called:"
7819 			    " for tgt %d lun %d event %d",
7820 			    mrevt->tgt, mrevt->lun, mrevt->event));
7821 
7822 		} else {
7823 			con_log(CL_ANN1, (CE_NOTE,
7824 			    "mr_sas: EVT_CONFIG_TGT dip != NULL:"
7825 			    " for tgt %d lun %d event %d",
7826 			    mrevt->tgt, mrevt->lun, mrevt->event));
7827 		}
7828 		break;
7829 	case MRSAS_EVT_UNCONFIG_TGT:
7830 		if (dip) {
7831 			if (i_ddi_devi_attached(dip)) {
7832 
7833 				pdip = ddi_get_parent(dip);
7834 
7835 				devname = kmem_zalloc(MAXNAMELEN + 1, KM_SLEEP);
7836 				(void) ddi_deviname(dip, devname);
7837 
7838 				(void) devfs_clean(pdip, devname + 1,
7839 				    DV_CLEAN_FORCE);
7840 				kmem_free(devname, MAXNAMELEN + 1);
7841 			}
7842 			(void) ndi_devi_offline(dip, NDI_DEVI_REMOVE);
7843 			con_log(CL_ANN1, (CE_NOTE,
7844 			    "mr_sas: EVT_UNCONFIG_TGT called:"
7845 			    " for tgt %d lun %d event %d",
7846 			    mrevt->tgt, mrevt->lun, mrevt->event));
7847 		} else {
7848 			con_log(CL_ANN1, (CE_NOTE,
7849 			    "mr_sas: EVT_UNCONFIG_TGT dip == NULL:"
7850 			    " for tgt %d lun %d event %d",
7851 			    mrevt->tgt, mrevt->lun, mrevt->event));
7852 		}
7853 		break;
7854 	}
7855 	kmem_free(mrevt, sizeof (struct mrsas_eventinfo));
7856 	ndi_devi_exit(instance->dip, circ1);
7857 }
7858 
7859 
7860 int
7861 mrsas_mode_sense_build(struct scsi_pkt *pkt)
7862 {
7863 	union scsi_cdb		*cdbp;
7864 	uint16_t		page_code;
7865 	struct scsa_cmd		*acmd;
7866 	struct buf		*bp;
7867 	struct mode_header	*modehdrp;
7868 
7869 	cdbp = (void *)pkt->pkt_cdbp;
7870 	page_code = cdbp->cdb_un.sg.scsi[0];
7871 	acmd = PKT2CMD(pkt);
7872 	bp = acmd->cmd_buf;
7873 	if ((!bp) && bp->b_un.b_addr && bp->b_bcount && acmd->cmd_dmacount) {
7874 		con_log(CL_ANN1, (CE_WARN, "Failing MODESENSE Command"));
7875 		/* ADD pkt statistics as Command failed. */
7876 		return (NULL);
7877 	}
7878 
7879 	bp_mapin(bp);
7880 	bzero(bp->b_un.b_addr, bp->b_bcount);
7881 
7882 	switch (page_code) {
7883 		case 0x3: {
7884 			struct mode_format *page3p = NULL;
7885 			modehdrp = (struct mode_header *)(bp->b_un.b_addr);
7886 			modehdrp->bdesc_length = MODE_BLK_DESC_LENGTH;
7887 
7888 			page3p = (void *)((caddr_t)modehdrp +
7889 			    MODE_HEADER_LENGTH + MODE_BLK_DESC_LENGTH);
7890 			page3p->mode_page.code = 0x3;
7891 			page3p->mode_page.length =
7892 			    (uchar_t)(sizeof (struct mode_format));
7893 			page3p->data_bytes_sect = 512;
7894 			page3p->sect_track = 63;
7895 			break;
7896 		}
7897 		case 0x4: {
7898 			struct mode_geometry *page4p = NULL;
7899 			modehdrp = (struct mode_header *)(bp->b_un.b_addr);
7900 			modehdrp->bdesc_length = MODE_BLK_DESC_LENGTH;
7901 
7902 			page4p = (void *)((caddr_t)modehdrp +
7903 			    MODE_HEADER_LENGTH + MODE_BLK_DESC_LENGTH);
7904 			page4p->mode_page.code = 0x4;
7905 			page4p->mode_page.length =
7906 			    (uchar_t)(sizeof (struct mode_geometry));
7907 			page4p->heads = 255;
7908 			page4p->rpm = 10000;
7909 			break;
7910 		}
7911 		default:
7912 			break;
7913 	}
7914 	return (NULL);
7915 }
7916