xref: /linux/drivers/scsi/mpt3sas/mpt3sas_config.c (revision ca55b2fef3a9373fcfc30f82fd26bc7fccbda732)
1 /*
2  * This module provides common API for accessing firmware configuration pages
3  *
4  * This code is based on drivers/scsi/mpt3sas/mpt3sas_base.c
5  * Copyright (C) 2012-2014  LSI Corporation
6  * Copyright (C) 2013-2014 Avago Technologies
7  *  (mailto: MPT-FusionLinux.pdl@avagotech.com)
8  *
9  * This program is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU General Public License
11  * as published by the Free Software Foundation; either version 2
12  * of the License, or (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  * GNU General Public License for more details.
18  *
19  * NO WARRANTY
20  * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
21  * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
22  * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
23  * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
24  * solely responsible for determining the appropriateness of using and
25  * distributing the Program and assumes all risks associated with its
26  * exercise of rights under this Agreement, including but not limited to
27  * the risks and costs of program errors, damage to or loss of data,
28  * programs or equipment, and unavailability or interruption of operations.
29 
30  * DISCLAIMER OF LIABILITY
31  * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
32  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33  * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
34  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
35  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
36  * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
37  * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
38 
39  * You should have received a copy of the GNU General Public License
40  * along with this program; if not, write to the Free Software
41  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
42  * USA.
43  */
44 
45 #include <linux/module.h>
46 #include <linux/kernel.h>
47 #include <linux/init.h>
48 #include <linux/errno.h>
49 #include <linux/blkdev.h>
50 #include <linux/sched.h>
51 #include <linux/workqueue.h>
52 #include <linux/delay.h>
53 #include <linux/pci.h>
54 
55 #include "mpt3sas_base.h"
56 
57 /* local definitions */
58 
59 /* Timeout for config page request (in seconds) */
60 #define MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT 15
61 
62 /* Common sgl flags for READING a config page. */
63 #define MPT3_CONFIG_COMMON_SGLFLAGS ((MPI2_SGE_FLAGS_SIMPLE_ELEMENT | \
64 	MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER \
65 	| MPI2_SGE_FLAGS_END_OF_LIST) << MPI2_SGE_FLAGS_SHIFT)
66 
67 /* Common sgl flags for WRITING a config page. */
68 #define MPT3_CONFIG_COMMON_WRITE_SGLFLAGS ((MPI2_SGE_FLAGS_SIMPLE_ELEMENT | \
69 	MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER \
70 	| MPI2_SGE_FLAGS_END_OF_LIST | MPI2_SGE_FLAGS_HOST_TO_IOC) \
71 	<< MPI2_SGE_FLAGS_SHIFT)
72 
73 /**
74  * struct config_request - obtain dma memory via routine
75  * @sz: size
76  * @page: virt pointer
77  * @page_dma: phys pointer
78  *
79  */
80 struct config_request {
81 	u16			sz;
82 	void			*page;
83 	dma_addr_t		page_dma;
84 };
85 
86 #ifdef CONFIG_SCSI_MPT3SAS_LOGGING
87 /**
88  * _config_display_some_debug - debug routine
89  * @ioc: per adapter object
90  * @smid: system request message index
91  * @calling_function_name: string pass from calling function
92  * @mpi_reply: reply message frame
93  * Context: none.
94  *
95  * Function for displaying debug info helpful when debugging issues
96  * in this module.
97  */
98 static void
99 _config_display_some_debug(struct MPT3SAS_ADAPTER *ioc, u16 smid,
100 	char *calling_function_name, MPI2DefaultReply_t *mpi_reply)
101 {
102 	Mpi2ConfigRequest_t *mpi_request;
103 	char *desc = NULL;
104 
105 	if (!(ioc->logging_level & MPT_DEBUG_CONFIG))
106 		return;
107 
108 	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
109 	switch (mpi_request->Header.PageType & MPI2_CONFIG_PAGETYPE_MASK) {
110 	case MPI2_CONFIG_PAGETYPE_IO_UNIT:
111 		desc = "io_unit";
112 		break;
113 	case MPI2_CONFIG_PAGETYPE_IOC:
114 		desc = "ioc";
115 		break;
116 	case MPI2_CONFIG_PAGETYPE_BIOS:
117 		desc = "bios";
118 		break;
119 	case MPI2_CONFIG_PAGETYPE_RAID_VOLUME:
120 		desc = "raid_volume";
121 		break;
122 	case MPI2_CONFIG_PAGETYPE_MANUFACTURING:
123 		desc = "manufaucturing";
124 		break;
125 	case MPI2_CONFIG_PAGETYPE_RAID_PHYSDISK:
126 		desc = "physdisk";
127 		break;
128 	case MPI2_CONFIG_PAGETYPE_EXTENDED:
129 		switch (mpi_request->ExtPageType) {
130 		case MPI2_CONFIG_EXTPAGETYPE_SAS_IO_UNIT:
131 			desc = "sas_io_unit";
132 			break;
133 		case MPI2_CONFIG_EXTPAGETYPE_SAS_EXPANDER:
134 			desc = "sas_expander";
135 			break;
136 		case MPI2_CONFIG_EXTPAGETYPE_SAS_DEVICE:
137 			desc = "sas_device";
138 			break;
139 		case MPI2_CONFIG_EXTPAGETYPE_SAS_PHY:
140 			desc = "sas_phy";
141 			break;
142 		case MPI2_CONFIG_EXTPAGETYPE_LOG:
143 			desc = "log";
144 			break;
145 		case MPI2_CONFIG_EXTPAGETYPE_ENCLOSURE:
146 			desc = "enclosure";
147 			break;
148 		case MPI2_CONFIG_EXTPAGETYPE_RAID_CONFIG:
149 			desc = "raid_config";
150 			break;
151 		case MPI2_CONFIG_EXTPAGETYPE_DRIVER_MAPPING:
152 			desc = "driver_mapping";
153 			break;
154 		}
155 		break;
156 	}
157 
158 	if (!desc)
159 		return;
160 
161 	pr_info(MPT3SAS_FMT
162 		"%s: %s(%d), action(%d), form(0x%08x), smid(%d)\n",
163 		ioc->name, calling_function_name, desc,
164 	    mpi_request->Header.PageNumber, mpi_request->Action,
165 	    le32_to_cpu(mpi_request->PageAddress), smid);
166 
167 	if (!mpi_reply)
168 		return;
169 
170 	if (mpi_reply->IOCStatus || mpi_reply->IOCLogInfo)
171 		pr_info(MPT3SAS_FMT
172 		    "\tiocstatus(0x%04x), loginfo(0x%08x)\n",
173 		    ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
174 		    le32_to_cpu(mpi_reply->IOCLogInfo));
175 }
176 #endif
177 
178 /**
179  * _config_alloc_config_dma_memory - obtain physical memory
180  * @ioc: per adapter object
181  * @mem: struct config_request
182  *
183  * A wrapper for obtaining dma-able memory for config page request.
184  *
185  * Returns 0 for success, non-zero for failure.
186  */
187 static int
188 _config_alloc_config_dma_memory(struct MPT3SAS_ADAPTER *ioc,
189 	struct config_request *mem)
190 {
191 	int r = 0;
192 
193 	if (mem->sz > ioc->config_page_sz) {
194 		mem->page = dma_alloc_coherent(&ioc->pdev->dev, mem->sz,
195 		    &mem->page_dma, GFP_KERNEL);
196 		if (!mem->page) {
197 			pr_err(MPT3SAS_FMT
198 				"%s: dma_alloc_coherent failed asking for (%d) bytes!!\n",
199 			    ioc->name, __func__, mem->sz);
200 			r = -ENOMEM;
201 		}
202 	} else { /* use tmp buffer if less than 512 bytes */
203 		mem->page = ioc->config_page;
204 		mem->page_dma = ioc->config_page_dma;
205 	}
206 	return r;
207 }
208 
209 /**
210  * _config_free_config_dma_memory - wrapper to free the memory
211  * @ioc: per adapter object
212  * @mem: struct config_request
213  *
214  * A wrapper to free dma-able memory when using _config_alloc_config_dma_memory.
215  *
216  * Returns 0 for success, non-zero for failure.
217  */
218 static void
219 _config_free_config_dma_memory(struct MPT3SAS_ADAPTER *ioc,
220 	struct config_request *mem)
221 {
222 	if (mem->sz > ioc->config_page_sz)
223 		dma_free_coherent(&ioc->pdev->dev, mem->sz, mem->page,
224 		    mem->page_dma);
225 }
226 
227 /**
228  * mpt3sas_config_done - config page completion routine
229  * @ioc: per adapter object
230  * @smid: system request message index
231  * @msix_index: MSIX table index supplied by the OS
232  * @reply: reply message frame(lower 32bit addr)
233  * Context: none.
234  *
235  * The callback handler when using _config_request.
236  *
237  * Return 1 meaning mf should be freed from _base_interrupt
238  *        0 means the mf is freed from this function.
239  */
240 u8
241 mpt3sas_config_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
242 	u32 reply)
243 {
244 	MPI2DefaultReply_t *mpi_reply;
245 
246 	if (ioc->config_cmds.status == MPT3_CMD_NOT_USED)
247 		return 1;
248 	if (ioc->config_cmds.smid != smid)
249 		return 1;
250 	ioc->config_cmds.status |= MPT3_CMD_COMPLETE;
251 	mpi_reply =  mpt3sas_base_get_reply_virt_addr(ioc, reply);
252 	if (mpi_reply) {
253 		ioc->config_cmds.status |= MPT3_CMD_REPLY_VALID;
254 		memcpy(ioc->config_cmds.reply, mpi_reply,
255 		    mpi_reply->MsgLength*4);
256 	}
257 	ioc->config_cmds.status &= ~MPT3_CMD_PENDING;
258 #ifdef CONFIG_SCSI_MPT3SAS_LOGGING
259 	_config_display_some_debug(ioc, smid, "config_done", mpi_reply);
260 #endif
261 	ioc->config_cmds.smid = USHRT_MAX;
262 	complete(&ioc->config_cmds.done);
263 	return 1;
264 }
265 
266 /**
267  * _config_request - main routine for sending config page requests
268  * @ioc: per adapter object
269  * @mpi_request: request message frame
270  * @mpi_reply: reply mf payload returned from firmware
271  * @timeout: timeout in seconds
272  * @config_page: contents of the config page
273  * @config_page_sz: size of config page
274  * Context: sleep
275  *
276  * A generic API for config page requests to firmware.
277  *
278  * The ioc->config_cmds.status flag should be MPT3_CMD_NOT_USED before calling
279  * this API.
280  *
281  * The callback index is set inside `ioc->config_cb_idx.
282  *
283  * Returns 0 for success, non-zero for failure.
284  */
285 static int
286 _config_request(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigRequest_t
287 	*mpi_request, Mpi2ConfigReply_t *mpi_reply, int timeout,
288 	void *config_page, u16 config_page_sz)
289 {
290 	u16 smid;
291 	u32 ioc_state;
292 	unsigned long timeleft;
293 	Mpi2ConfigRequest_t *config_request;
294 	int r;
295 	u8 retry_count, issue_host_reset = 0;
296 	u16 wait_state_count;
297 	struct config_request mem;
298 	u32 ioc_status = UINT_MAX;
299 
300 	mutex_lock(&ioc->config_cmds.mutex);
301 	if (ioc->config_cmds.status != MPT3_CMD_NOT_USED) {
302 		pr_err(MPT3SAS_FMT "%s: config_cmd in use\n",
303 		    ioc->name, __func__);
304 		mutex_unlock(&ioc->config_cmds.mutex);
305 		return -EAGAIN;
306 	}
307 
308 	retry_count = 0;
309 	memset(&mem, 0, sizeof(struct config_request));
310 
311 	mpi_request->VF_ID = 0; /* TODO */
312 	mpi_request->VP_ID = 0;
313 
314 	if (config_page) {
315 		mpi_request->Header.PageVersion = mpi_reply->Header.PageVersion;
316 		mpi_request->Header.PageNumber = mpi_reply->Header.PageNumber;
317 		mpi_request->Header.PageType = mpi_reply->Header.PageType;
318 		mpi_request->Header.PageLength = mpi_reply->Header.PageLength;
319 		mpi_request->ExtPageLength = mpi_reply->ExtPageLength;
320 		mpi_request->ExtPageType = mpi_reply->ExtPageType;
321 		if (mpi_request->Header.PageLength)
322 			mem.sz = mpi_request->Header.PageLength * 4;
323 		else
324 			mem.sz = le16_to_cpu(mpi_reply->ExtPageLength) * 4;
325 		r = _config_alloc_config_dma_memory(ioc, &mem);
326 		if (r != 0)
327 			goto out;
328 		if (mpi_request->Action ==
329 		    MPI2_CONFIG_ACTION_PAGE_WRITE_CURRENT ||
330 		    mpi_request->Action ==
331 		    MPI2_CONFIG_ACTION_PAGE_WRITE_NVRAM) {
332 			ioc->base_add_sg_single(&mpi_request->PageBufferSGE,
333 			    MPT3_CONFIG_COMMON_WRITE_SGLFLAGS | mem.sz,
334 			    mem.page_dma);
335 			memcpy(mem.page, config_page, min_t(u16, mem.sz,
336 			    config_page_sz));
337 		} else {
338 			memset(config_page, 0, config_page_sz);
339 			ioc->base_add_sg_single(&mpi_request->PageBufferSGE,
340 			    MPT3_CONFIG_COMMON_SGLFLAGS | mem.sz, mem.page_dma);
341 			memset(mem.page, 0, min_t(u16, mem.sz, config_page_sz));
342 		}
343 	}
344 
345  retry_config:
346 	if (retry_count) {
347 		if (retry_count > 2) { /* attempt only 2 retries */
348 			r = -EFAULT;
349 			goto free_mem;
350 		}
351 		pr_info(MPT3SAS_FMT "%s: attempting retry (%d)\n",
352 		    ioc->name, __func__, retry_count);
353 	}
354 	wait_state_count = 0;
355 	ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
356 	while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
357 		if (wait_state_count++ == MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT) {
358 			pr_err(MPT3SAS_FMT
359 			    "%s: failed due to ioc not operational\n",
360 			    ioc->name, __func__);
361 			ioc->config_cmds.status = MPT3_CMD_NOT_USED;
362 			r = -EFAULT;
363 			goto free_mem;
364 		}
365 		ssleep(1);
366 		ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
367 		pr_info(MPT3SAS_FMT
368 			"%s: waiting for operational state(count=%d)\n",
369 			ioc->name, __func__, wait_state_count);
370 	}
371 	if (wait_state_count)
372 		pr_info(MPT3SAS_FMT "%s: ioc is operational\n",
373 		    ioc->name, __func__);
374 
375 	smid = mpt3sas_base_get_smid(ioc, ioc->config_cb_idx);
376 	if (!smid) {
377 		pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
378 		    ioc->name, __func__);
379 		ioc->config_cmds.status = MPT3_CMD_NOT_USED;
380 		r = -EAGAIN;
381 		goto free_mem;
382 	}
383 
384 	r = 0;
385 	memset(mpi_reply, 0, sizeof(Mpi2ConfigReply_t));
386 	ioc->config_cmds.status = MPT3_CMD_PENDING;
387 	config_request = mpt3sas_base_get_msg_frame(ioc, smid);
388 	ioc->config_cmds.smid = smid;
389 	memcpy(config_request, mpi_request, sizeof(Mpi2ConfigRequest_t));
390 #ifdef CONFIG_SCSI_MPT3SAS_LOGGING
391 	_config_display_some_debug(ioc, smid, "config_request", NULL);
392 #endif
393 	init_completion(&ioc->config_cmds.done);
394 	mpt3sas_base_put_smid_default(ioc, smid);
395 	timeleft = wait_for_completion_timeout(&ioc->config_cmds.done,
396 	    timeout*HZ);
397 	if (!(ioc->config_cmds.status & MPT3_CMD_COMPLETE)) {
398 		pr_err(MPT3SAS_FMT "%s: timeout\n",
399 		    ioc->name, __func__);
400 		_debug_dump_mf(mpi_request,
401 		    sizeof(Mpi2ConfigRequest_t)/4);
402 		retry_count++;
403 		if (ioc->config_cmds.smid == smid)
404 			mpt3sas_base_free_smid(ioc, smid);
405 		if ((ioc->shost_recovery) || (ioc->config_cmds.status &
406 		    MPT3_CMD_RESET) || ioc->pci_error_recovery)
407 			goto retry_config;
408 		issue_host_reset = 1;
409 		r = -EFAULT;
410 		goto free_mem;
411 	}
412 
413 	if (ioc->config_cmds.status & MPT3_CMD_REPLY_VALID) {
414 		memcpy(mpi_reply, ioc->config_cmds.reply,
415 		    sizeof(Mpi2ConfigReply_t));
416 
417 		/* Reply Frame Sanity Checks to workaround FW issues */
418 		if ((mpi_request->Header.PageType & 0xF) !=
419 		    (mpi_reply->Header.PageType & 0xF)) {
420 			_debug_dump_mf(mpi_request, ioc->request_sz/4);
421 			_debug_dump_reply(mpi_reply, ioc->request_sz/4);
422 			panic(KERN_WARNING MPT3SAS_FMT "%s: Firmware BUG:" \
423 			    " mpi_reply mismatch: Requested PageType(0x%02x)" \
424 			    " Reply PageType(0x%02x)\n", \
425 			    ioc->name, __func__,
426 			    (mpi_request->Header.PageType & 0xF),
427 			    (mpi_reply->Header.PageType & 0xF));
428 		}
429 
430 		if (((mpi_request->Header.PageType & 0xF) ==
431 		    MPI2_CONFIG_PAGETYPE_EXTENDED) &&
432 		    mpi_request->ExtPageType != mpi_reply->ExtPageType) {
433 			_debug_dump_mf(mpi_request, ioc->request_sz/4);
434 			_debug_dump_reply(mpi_reply, ioc->request_sz/4);
435 			panic(KERN_WARNING MPT3SAS_FMT "%s: Firmware BUG:" \
436 			    " mpi_reply mismatch: Requested ExtPageType(0x%02x)"
437 			    " Reply ExtPageType(0x%02x)\n",
438 			    ioc->name, __func__, mpi_request->ExtPageType,
439 			    mpi_reply->ExtPageType);
440 		}
441 		ioc_status = le16_to_cpu(mpi_reply->IOCStatus)
442 		    & MPI2_IOCSTATUS_MASK;
443 	}
444 
445 	if (retry_count)
446 		pr_info(MPT3SAS_FMT "%s: retry (%d) completed!!\n", \
447 		    ioc->name, __func__, retry_count);
448 
449 	if ((ioc_status == MPI2_IOCSTATUS_SUCCESS) &&
450 	    config_page && mpi_request->Action ==
451 	    MPI2_CONFIG_ACTION_PAGE_READ_CURRENT) {
452 		u8 *p = (u8 *)mem.page;
453 
454 		/* Config Page Sanity Checks to workaround FW issues */
455 		if (p) {
456 			if ((mpi_request->Header.PageType & 0xF) !=
457 			    (p[3] & 0xF)) {
458 				_debug_dump_mf(mpi_request, ioc->request_sz/4);
459 				_debug_dump_reply(mpi_reply, ioc->request_sz/4);
460 				_debug_dump_config(p, min_t(u16, mem.sz,
461 				    config_page_sz)/4);
462 				panic(KERN_WARNING MPT3SAS_FMT
463 					"%s: Firmware BUG:" \
464 				    " config page mismatch:"
465 				    " Requested PageType(0x%02x)"
466 				    " Reply PageType(0x%02x)\n",
467 				    ioc->name, __func__,
468 				    (mpi_request->Header.PageType & 0xF),
469 				    (p[3] & 0xF));
470 			}
471 
472 			if (((mpi_request->Header.PageType & 0xF) ==
473 			    MPI2_CONFIG_PAGETYPE_EXTENDED) &&
474 			    (mpi_request->ExtPageType != p[6])) {
475 				_debug_dump_mf(mpi_request, ioc->request_sz/4);
476 				_debug_dump_reply(mpi_reply, ioc->request_sz/4);
477 				_debug_dump_config(p, min_t(u16, mem.sz,
478 				    config_page_sz)/4);
479 				panic(KERN_WARNING MPT3SAS_FMT
480 					"%s: Firmware BUG:" \
481 				    " config page mismatch:"
482 				    " Requested ExtPageType(0x%02x)"
483 				    " Reply ExtPageType(0x%02x)\n",
484 				    ioc->name, __func__,
485 				    mpi_request->ExtPageType, p[6]);
486 			}
487 		}
488 		memcpy(config_page, mem.page, min_t(u16, mem.sz,
489 		    config_page_sz));
490 	}
491 
492  free_mem:
493 	if (config_page)
494 		_config_free_config_dma_memory(ioc, &mem);
495  out:
496 	ioc->config_cmds.status = MPT3_CMD_NOT_USED;
497 	mutex_unlock(&ioc->config_cmds.mutex);
498 
499 	if (issue_host_reset)
500 		mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
501 		    FORCE_BIG_HAMMER);
502 	return r;
503 }
504 
505 /**
506  * mpt3sas_config_get_manufacturing_pg0 - obtain manufacturing page 0
507  * @ioc: per adapter object
508  * @mpi_reply: reply mf payload returned from firmware
509  * @config_page: contents of the config page
510  * Context: sleep.
511  *
512  * Returns 0 for success, non-zero for failure.
513  */
514 int
515 mpt3sas_config_get_manufacturing_pg0(struct MPT3SAS_ADAPTER *ioc,
516 	Mpi2ConfigReply_t *mpi_reply, Mpi2ManufacturingPage0_t *config_page)
517 {
518 	Mpi2ConfigRequest_t mpi_request;
519 	int r;
520 
521 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
522 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
523 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
524 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_MANUFACTURING;
525 	mpi_request.Header.PageNumber = 0;
526 	mpi_request.Header.PageVersion = MPI2_MANUFACTURING0_PAGEVERSION;
527 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
528 	r = _config_request(ioc, &mpi_request, mpi_reply,
529 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
530 	if (r)
531 		goto out;
532 
533 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
534 	r = _config_request(ioc, &mpi_request, mpi_reply,
535 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
536 	    sizeof(*config_page));
537  out:
538 	return r;
539 }
540 
541 /**
542  * mpt3sas_config_get_manufacturing_pg7 - obtain manufacturing page 7
543  * @ioc: per adapter object
544  * @mpi_reply: reply mf payload returned from firmware
545  * @config_page: contents of the config page
546  * @sz: size of buffer passed in config_page
547  * Context: sleep.
548  *
549  * Returns 0 for success, non-zero for failure.
550  */
551 int
552 mpt3sas_config_get_manufacturing_pg7(struct MPT3SAS_ADAPTER *ioc,
553 	Mpi2ConfigReply_t *mpi_reply, Mpi2ManufacturingPage7_t *config_page,
554 	u16 sz)
555 {
556 	Mpi2ConfigRequest_t mpi_request;
557 	int r;
558 
559 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
560 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
561 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
562 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_MANUFACTURING;
563 	mpi_request.Header.PageNumber = 7;
564 	mpi_request.Header.PageVersion = MPI2_MANUFACTURING7_PAGEVERSION;
565 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
566 	r = _config_request(ioc, &mpi_request, mpi_reply,
567 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
568 	if (r)
569 		goto out;
570 
571 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
572 	r = _config_request(ioc, &mpi_request, mpi_reply,
573 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
574 	    sz);
575  out:
576 	return r;
577 }
578 
579 /**
580  * mpt3sas_config_get_manufacturing_pg10 - obtain manufacturing page 10
581  * @ioc: per adapter object
582  * @mpi_reply: reply mf payload returned from firmware
583  * @config_page: contents of the config page
584  * Context: sleep.
585  *
586  * Returns 0 for success, non-zero for failure.
587  */
588 int
589 mpt3sas_config_get_manufacturing_pg10(struct MPT3SAS_ADAPTER *ioc,
590 	Mpi2ConfigReply_t *mpi_reply,
591 	struct Mpi2ManufacturingPage10_t *config_page)
592 {
593 	Mpi2ConfigRequest_t mpi_request;
594 	int r;
595 
596 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
597 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
598 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
599 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_MANUFACTURING;
600 	mpi_request.Header.PageNumber = 10;
601 	mpi_request.Header.PageVersion = MPI2_MANUFACTURING0_PAGEVERSION;
602 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
603 	r = _config_request(ioc, &mpi_request, mpi_reply,
604 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
605 	if (r)
606 		goto out;
607 
608 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
609 	r = _config_request(ioc, &mpi_request, mpi_reply,
610 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
611 	    sizeof(*config_page));
612  out:
613 	return r;
614 }
615 
616 /**
617  * mpt3sas_config_get_manufacturing_pg11 - obtain manufacturing page 11
618  * @ioc: per adapter object
619  * @mpi_reply: reply mf payload returned from firmware
620  * @config_page: contents of the config page
621  * Context: sleep.
622  *
623  * Returns 0 for success, non-zero for failure.
624  */
625 int
626 mpt3sas_config_get_manufacturing_pg11(struct MPT3SAS_ADAPTER *ioc,
627 	Mpi2ConfigReply_t *mpi_reply,
628 	struct Mpi2ManufacturingPage11_t *config_page)
629 {
630 	Mpi2ConfigRequest_t mpi_request;
631 	int r;
632 
633 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
634 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
635 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
636 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_MANUFACTURING;
637 	mpi_request.Header.PageNumber = 11;
638 	mpi_request.Header.PageVersion = MPI2_MANUFACTURING0_PAGEVERSION;
639 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
640 	r = _config_request(ioc, &mpi_request, mpi_reply,
641 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
642 	if (r)
643 		goto out;
644 
645 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
646 	r = _config_request(ioc, &mpi_request, mpi_reply,
647 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
648 	    sizeof(*config_page));
649  out:
650 	return r;
651 }
652 
653 /**
654  * mpt3sas_config_set_manufacturing_pg11 - set manufacturing page 11
655  * @ioc: per adapter object
656  * @mpi_reply: reply mf payload returned from firmware
657  * @config_page: contents of the config page
658  * Context: sleep.
659  *
660  * Returns 0 for success, non-zero for failure.
661  */
662 int
663 mpt3sas_config_set_manufacturing_pg11(struct MPT3SAS_ADAPTER *ioc,
664 	Mpi2ConfigReply_t *mpi_reply,
665 	struct Mpi2ManufacturingPage11_t *config_page)
666 {
667 	Mpi2ConfigRequest_t mpi_request;
668 	int r;
669 
670 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
671 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
672 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
673 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_MANUFACTURING;
674 	mpi_request.Header.PageNumber = 11;
675 	mpi_request.Header.PageVersion = MPI2_MANUFACTURING0_PAGEVERSION;
676 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
677 	r = _config_request(ioc, &mpi_request, mpi_reply,
678 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
679 	if (r)
680 		goto out;
681 
682 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_WRITE_CURRENT;
683 	r = _config_request(ioc, &mpi_request, mpi_reply,
684 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
685 	    sizeof(*config_page));
686 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_WRITE_NVRAM;
687 	r = _config_request(ioc, &mpi_request, mpi_reply,
688 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
689 	    sizeof(*config_page));
690  out:
691 	return r;
692 }
693 
694 /**
695  * mpt3sas_config_get_bios_pg2 - obtain bios page 2
696  * @ioc: per adapter object
697  * @mpi_reply: reply mf payload returned from firmware
698  * @config_page: contents of the config page
699  * Context: sleep.
700  *
701  * Returns 0 for success, non-zero for failure.
702  */
703 int
704 mpt3sas_config_get_bios_pg2(struct MPT3SAS_ADAPTER *ioc,
705 	Mpi2ConfigReply_t *mpi_reply, Mpi2BiosPage2_t *config_page)
706 {
707 	Mpi2ConfigRequest_t mpi_request;
708 	int r;
709 
710 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
711 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
712 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
713 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_BIOS;
714 	mpi_request.Header.PageNumber = 2;
715 	mpi_request.Header.PageVersion = MPI2_BIOSPAGE2_PAGEVERSION;
716 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
717 	r = _config_request(ioc, &mpi_request, mpi_reply,
718 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
719 	if (r)
720 		goto out;
721 
722 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
723 	r = _config_request(ioc, &mpi_request, mpi_reply,
724 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
725 	    sizeof(*config_page));
726  out:
727 	return r;
728 }
729 
730 /**
731  * mpt3sas_config_get_bios_pg3 - obtain bios page 3
732  * @ioc: per adapter object
733  * @mpi_reply: reply mf payload returned from firmware
734  * @config_page: contents of the config page
735  * Context: sleep.
736  *
737  * Returns 0 for success, non-zero for failure.
738  */
739 int
740 mpt3sas_config_get_bios_pg3(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
741 	*mpi_reply, Mpi2BiosPage3_t *config_page)
742 {
743 	Mpi2ConfigRequest_t mpi_request;
744 	int r;
745 
746 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
747 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
748 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
749 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_BIOS;
750 	mpi_request.Header.PageNumber = 3;
751 	mpi_request.Header.PageVersion = MPI2_BIOSPAGE3_PAGEVERSION;
752 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
753 	r = _config_request(ioc, &mpi_request, mpi_reply,
754 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
755 	if (r)
756 		goto out;
757 
758 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
759 	r = _config_request(ioc, &mpi_request, mpi_reply,
760 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
761 	    sizeof(*config_page));
762  out:
763 	return r;
764 }
765 
766 /**
767  * mpt3sas_config_get_iounit_pg0 - obtain iounit page 0
768  * @ioc: per adapter object
769  * @mpi_reply: reply mf payload returned from firmware
770  * @config_page: contents of the config page
771  * Context: sleep.
772  *
773  * Returns 0 for success, non-zero for failure.
774  */
775 int
776 mpt3sas_config_get_iounit_pg0(struct MPT3SAS_ADAPTER *ioc,
777 	Mpi2ConfigReply_t *mpi_reply, Mpi2IOUnitPage0_t *config_page)
778 {
779 	Mpi2ConfigRequest_t mpi_request;
780 	int r;
781 
782 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
783 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
784 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
785 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_IO_UNIT;
786 	mpi_request.Header.PageNumber = 0;
787 	mpi_request.Header.PageVersion = MPI2_IOUNITPAGE0_PAGEVERSION;
788 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
789 	r = _config_request(ioc, &mpi_request, mpi_reply,
790 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
791 	if (r)
792 		goto out;
793 
794 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
795 	r = _config_request(ioc, &mpi_request, mpi_reply,
796 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
797 	    sizeof(*config_page));
798  out:
799 	return r;
800 }
801 
802 /**
803  * mpt3sas_config_get_iounit_pg1 - obtain iounit page 1
804  * @ioc: per adapter object
805  * @mpi_reply: reply mf payload returned from firmware
806  * @config_page: contents of the config page
807  * Context: sleep.
808  *
809  * Returns 0 for success, non-zero for failure.
810  */
811 int
812 mpt3sas_config_get_iounit_pg1(struct MPT3SAS_ADAPTER *ioc,
813 	Mpi2ConfigReply_t *mpi_reply, Mpi2IOUnitPage1_t *config_page)
814 {
815 	Mpi2ConfigRequest_t mpi_request;
816 	int r;
817 
818 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
819 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
820 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
821 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_IO_UNIT;
822 	mpi_request.Header.PageNumber = 1;
823 	mpi_request.Header.PageVersion = MPI2_IOUNITPAGE1_PAGEVERSION;
824 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
825 	r = _config_request(ioc, &mpi_request, mpi_reply,
826 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
827 	if (r)
828 		goto out;
829 
830 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
831 	r = _config_request(ioc, &mpi_request, mpi_reply,
832 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
833 	    sizeof(*config_page));
834  out:
835 	return r;
836 }
837 
838 /**
839  * mpt3sas_config_set_iounit_pg1 - set iounit page 1
840  * @ioc: per adapter object
841  * @mpi_reply: reply mf payload returned from firmware
842  * @config_page: contents of the config page
843  * Context: sleep.
844  *
845  * Returns 0 for success, non-zero for failure.
846  */
847 int
848 mpt3sas_config_set_iounit_pg1(struct MPT3SAS_ADAPTER *ioc,
849 	Mpi2ConfigReply_t *mpi_reply, Mpi2IOUnitPage1_t *config_page)
850 {
851 	Mpi2ConfigRequest_t mpi_request;
852 	int r;
853 
854 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
855 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
856 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
857 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_IO_UNIT;
858 	mpi_request.Header.PageNumber = 1;
859 	mpi_request.Header.PageVersion = MPI2_IOUNITPAGE1_PAGEVERSION;
860 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
861 	r = _config_request(ioc, &mpi_request, mpi_reply,
862 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
863 	if (r)
864 		goto out;
865 
866 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_WRITE_CURRENT;
867 	r = _config_request(ioc, &mpi_request, mpi_reply,
868 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
869 	    sizeof(*config_page));
870  out:
871 	return r;
872 }
873 
874 /**
875  * mpt3sas_config_get_iounit_pg8 - obtain iounit page 8
876  * @ioc: per adapter object
877  * @mpi_reply: reply mf payload returned from firmware
878  * @config_page: contents of the config page
879  * Context: sleep.
880  *
881  * Returns 0 for success, non-zero for failure.
882  */
883 int
884 mpt3sas_config_get_iounit_pg8(struct MPT3SAS_ADAPTER *ioc,
885 	Mpi2ConfigReply_t *mpi_reply, Mpi2IOUnitPage8_t *config_page)
886 {
887 	Mpi2ConfigRequest_t mpi_request;
888 	int r;
889 
890 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
891 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
892 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
893 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_IO_UNIT;
894 	mpi_request.Header.PageNumber = 8;
895 	mpi_request.Header.PageVersion = MPI2_IOUNITPAGE8_PAGEVERSION;
896 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
897 	r = _config_request(ioc, &mpi_request, mpi_reply,
898 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
899 	if (r)
900 		goto out;
901 
902 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
903 	r = _config_request(ioc, &mpi_request, mpi_reply,
904 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
905 	    sizeof(*config_page));
906  out:
907 	return r;
908 }
909 
910 /**
911  * mpt3sas_config_get_ioc_pg8 - obtain ioc page 8
912  * @ioc: per adapter object
913  * @mpi_reply: reply mf payload returned from firmware
914  * @config_page: contents of the config page
915  * Context: sleep.
916  *
917  * Returns 0 for success, non-zero for failure.
918  */
919 int
920 mpt3sas_config_get_ioc_pg8(struct MPT3SAS_ADAPTER *ioc,
921 	Mpi2ConfigReply_t *mpi_reply, Mpi2IOCPage8_t *config_page)
922 {
923 	Mpi2ConfigRequest_t mpi_request;
924 	int r;
925 
926 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
927 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
928 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
929 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_IOC;
930 	mpi_request.Header.PageNumber = 8;
931 	mpi_request.Header.PageVersion = MPI2_IOCPAGE8_PAGEVERSION;
932 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
933 	r = _config_request(ioc, &mpi_request, mpi_reply,
934 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
935 	if (r)
936 		goto out;
937 
938 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
939 	r = _config_request(ioc, &mpi_request, mpi_reply,
940 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
941 	    sizeof(*config_page));
942  out:
943 	return r;
944 }
945 
946 /**
947  * mpt3sas_config_get_sas_device_pg0 - obtain sas device page 0
948  * @ioc: per adapter object
949  * @mpi_reply: reply mf payload returned from firmware
950  * @config_page: contents of the config page
951  * @form: GET_NEXT_HANDLE or HANDLE
952  * @handle: device handle
953  * Context: sleep.
954  *
955  * Returns 0 for success, non-zero for failure.
956  */
957 int
958 mpt3sas_config_get_sas_device_pg0(struct MPT3SAS_ADAPTER *ioc,
959 	Mpi2ConfigReply_t *mpi_reply, Mpi2SasDevicePage0_t *config_page,
960 	u32 form, u32 handle)
961 {
962 	Mpi2ConfigRequest_t mpi_request;
963 	int r;
964 
965 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
966 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
967 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
968 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
969 	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_SAS_DEVICE;
970 	mpi_request.Header.PageVersion = MPI2_SASDEVICE0_PAGEVERSION;
971 	mpi_request.Header.PageNumber = 0;
972 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
973 	r = _config_request(ioc, &mpi_request, mpi_reply,
974 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
975 	if (r)
976 		goto out;
977 
978 	mpi_request.PageAddress = cpu_to_le32(form | handle);
979 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
980 	r = _config_request(ioc, &mpi_request, mpi_reply,
981 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
982 	    sizeof(*config_page));
983  out:
984 	return r;
985 }
986 
987 /**
988  * mpt3sas_config_get_sas_device_pg1 - obtain sas device page 1
989  * @ioc: per adapter object
990  * @mpi_reply: reply mf payload returned from firmware
991  * @config_page: contents of the config page
992  * @form: GET_NEXT_HANDLE or HANDLE
993  * @handle: device handle
994  * Context: sleep.
995  *
996  * Returns 0 for success, non-zero for failure.
997  */
998 int
999 mpt3sas_config_get_sas_device_pg1(struct MPT3SAS_ADAPTER *ioc,
1000 	Mpi2ConfigReply_t *mpi_reply, Mpi2SasDevicePage1_t *config_page,
1001 	u32 form, u32 handle)
1002 {
1003 	Mpi2ConfigRequest_t mpi_request;
1004 	int r;
1005 
1006 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
1007 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
1008 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
1009 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
1010 	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_SAS_DEVICE;
1011 	mpi_request.Header.PageVersion = MPI2_SASDEVICE1_PAGEVERSION;
1012 	mpi_request.Header.PageNumber = 1;
1013 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
1014 	r = _config_request(ioc, &mpi_request, mpi_reply,
1015 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
1016 	if (r)
1017 		goto out;
1018 
1019 	mpi_request.PageAddress = cpu_to_le32(form | handle);
1020 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
1021 	r = _config_request(ioc, &mpi_request, mpi_reply,
1022 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
1023 	    sizeof(*config_page));
1024  out:
1025 	return r;
1026 }
1027 
1028 /**
1029  * mpt3sas_config_get_number_hba_phys - obtain number of phys on the host
1030  * @ioc: per adapter object
1031  * @num_phys: pointer returned with the number of phys
1032  * Context: sleep.
1033  *
1034  * Returns 0 for success, non-zero for failure.
1035  */
1036 int
1037 mpt3sas_config_get_number_hba_phys(struct MPT3SAS_ADAPTER *ioc, u8 *num_phys)
1038 {
1039 	Mpi2ConfigRequest_t mpi_request;
1040 	int r;
1041 	u16 ioc_status;
1042 	Mpi2ConfigReply_t mpi_reply;
1043 	Mpi2SasIOUnitPage0_t config_page;
1044 
1045 	*num_phys = 0;
1046 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
1047 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
1048 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
1049 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
1050 	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_SAS_IO_UNIT;
1051 	mpi_request.Header.PageNumber = 0;
1052 	mpi_request.Header.PageVersion = MPI2_SASIOUNITPAGE0_PAGEVERSION;
1053 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
1054 	r = _config_request(ioc, &mpi_request, &mpi_reply,
1055 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
1056 	if (r)
1057 		goto out;
1058 
1059 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
1060 	r = _config_request(ioc, &mpi_request, &mpi_reply,
1061 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, &config_page,
1062 	    sizeof(Mpi2SasIOUnitPage0_t));
1063 	if (!r) {
1064 		ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1065 		    MPI2_IOCSTATUS_MASK;
1066 		if (ioc_status == MPI2_IOCSTATUS_SUCCESS)
1067 			*num_phys = config_page.NumPhys;
1068 	}
1069  out:
1070 	return r;
1071 }
1072 
1073 /**
1074  * mpt3sas_config_get_sas_iounit_pg0 - obtain sas iounit page 0
1075  * @ioc: per adapter object
1076  * @mpi_reply: reply mf payload returned from firmware
1077  * @config_page: contents of the config page
1078  * @sz: size of buffer passed in config_page
1079  * Context: sleep.
1080  *
1081  * Calling function should call config_get_number_hba_phys prior to
1082  * this function, so enough memory is allocated for config_page.
1083  *
1084  * Returns 0 for success, non-zero for failure.
1085  */
1086 int
1087 mpt3sas_config_get_sas_iounit_pg0(struct MPT3SAS_ADAPTER *ioc,
1088 	Mpi2ConfigReply_t *mpi_reply, Mpi2SasIOUnitPage0_t *config_page,
1089 	u16 sz)
1090 {
1091 	Mpi2ConfigRequest_t mpi_request;
1092 	int r;
1093 
1094 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
1095 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
1096 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
1097 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
1098 	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_SAS_IO_UNIT;
1099 	mpi_request.Header.PageNumber = 0;
1100 	mpi_request.Header.PageVersion = MPI2_SASIOUNITPAGE0_PAGEVERSION;
1101 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
1102 	r = _config_request(ioc, &mpi_request, mpi_reply,
1103 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
1104 	if (r)
1105 		goto out;
1106 
1107 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
1108 	r = _config_request(ioc, &mpi_request, mpi_reply,
1109 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page, sz);
1110  out:
1111 	return r;
1112 }
1113 
1114 /**
1115  * mpt3sas_config_get_sas_iounit_pg1 - obtain sas iounit page 1
1116  * @ioc: per adapter object
1117  * @mpi_reply: reply mf payload returned from firmware
1118  * @config_page: contents of the config page
1119  * @sz: size of buffer passed in config_page
1120  * Context: sleep.
1121  *
1122  * Calling function should call config_get_number_hba_phys prior to
1123  * this function, so enough memory is allocated for config_page.
1124  *
1125  * Returns 0 for success, non-zero for failure.
1126  */
1127 int
1128 mpt3sas_config_get_sas_iounit_pg1(struct MPT3SAS_ADAPTER *ioc,
1129 	Mpi2ConfigReply_t *mpi_reply, Mpi2SasIOUnitPage1_t *config_page,
1130 	u16 sz)
1131 {
1132 	Mpi2ConfigRequest_t mpi_request;
1133 	int r;
1134 
1135 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
1136 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
1137 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
1138 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
1139 	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_SAS_IO_UNIT;
1140 	mpi_request.Header.PageNumber = 1;
1141 	mpi_request.Header.PageVersion = MPI2_SASIOUNITPAGE1_PAGEVERSION;
1142 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
1143 	r = _config_request(ioc, &mpi_request, mpi_reply,
1144 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
1145 	if (r)
1146 		goto out;
1147 
1148 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
1149 	r = _config_request(ioc, &mpi_request, mpi_reply,
1150 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page, sz);
1151  out:
1152 	return r;
1153 }
1154 
1155 /**
1156  * mpt3sas_config_set_sas_iounit_pg1 - send sas iounit page 1
1157  * @ioc: per adapter object
1158  * @mpi_reply: reply mf payload returned from firmware
1159  * @config_page: contents of the config page
1160  * @sz: size of buffer passed in config_page
1161  * Context: sleep.
1162  *
1163  * Calling function should call config_get_number_hba_phys prior to
1164  * this function, so enough memory is allocated for config_page.
1165  *
1166  * Returns 0 for success, non-zero for failure.
1167  */
1168 int
1169 mpt3sas_config_set_sas_iounit_pg1(struct MPT3SAS_ADAPTER *ioc,
1170 	Mpi2ConfigReply_t *mpi_reply, Mpi2SasIOUnitPage1_t *config_page,
1171 	u16 sz)
1172 {
1173 	Mpi2ConfigRequest_t mpi_request;
1174 	int r;
1175 
1176 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
1177 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
1178 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
1179 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
1180 	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_SAS_IO_UNIT;
1181 	mpi_request.Header.PageNumber = 1;
1182 	mpi_request.Header.PageVersion = MPI2_SASIOUNITPAGE1_PAGEVERSION;
1183 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
1184 	r = _config_request(ioc, &mpi_request, mpi_reply,
1185 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
1186 	if (r)
1187 		goto out;
1188 
1189 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_WRITE_CURRENT;
1190 	_config_request(ioc, &mpi_request, mpi_reply,
1191 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page, sz);
1192 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_WRITE_NVRAM;
1193 	r = _config_request(ioc, &mpi_request, mpi_reply,
1194 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page, sz);
1195  out:
1196 	return r;
1197 }
1198 
1199 /**
1200  * mpt3sas_config_get_expander_pg0 - obtain expander page 0
1201  * @ioc: per adapter object
1202  * @mpi_reply: reply mf payload returned from firmware
1203  * @config_page: contents of the config page
1204  * @form: GET_NEXT_HANDLE or HANDLE
1205  * @handle: expander handle
1206  * Context: sleep.
1207  *
1208  * Returns 0 for success, non-zero for failure.
1209  */
1210 int
1211 mpt3sas_config_get_expander_pg0(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
1212 	*mpi_reply, Mpi2ExpanderPage0_t *config_page, u32 form, u32 handle)
1213 {
1214 	Mpi2ConfigRequest_t mpi_request;
1215 	int r;
1216 
1217 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
1218 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
1219 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
1220 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
1221 	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_SAS_EXPANDER;
1222 	mpi_request.Header.PageNumber = 0;
1223 	mpi_request.Header.PageVersion = MPI2_SASEXPANDER0_PAGEVERSION;
1224 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
1225 	r = _config_request(ioc, &mpi_request, mpi_reply,
1226 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
1227 	if (r)
1228 		goto out;
1229 
1230 	mpi_request.PageAddress = cpu_to_le32(form | handle);
1231 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
1232 	r = _config_request(ioc, &mpi_request, mpi_reply,
1233 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
1234 	    sizeof(*config_page));
1235  out:
1236 	return r;
1237 }
1238 
1239 /**
1240  * mpt3sas_config_get_expander_pg1 - obtain expander page 1
1241  * @ioc: per adapter object
1242  * @mpi_reply: reply mf payload returned from firmware
1243  * @config_page: contents of the config page
1244  * @phy_number: phy number
1245  * @handle: expander handle
1246  * Context: sleep.
1247  *
1248  * Returns 0 for success, non-zero for failure.
1249  */
1250 int
1251 mpt3sas_config_get_expander_pg1(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
1252 	*mpi_reply, Mpi2ExpanderPage1_t *config_page, u32 phy_number,
1253 	u16 handle)
1254 {
1255 	Mpi2ConfigRequest_t mpi_request;
1256 	int r;
1257 
1258 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
1259 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
1260 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
1261 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
1262 	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_SAS_EXPANDER;
1263 	mpi_request.Header.PageNumber = 1;
1264 	mpi_request.Header.PageVersion = MPI2_SASEXPANDER1_PAGEVERSION;
1265 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
1266 	r = _config_request(ioc, &mpi_request, mpi_reply,
1267 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
1268 	if (r)
1269 		goto out;
1270 
1271 	mpi_request.PageAddress =
1272 	    cpu_to_le32(MPI2_SAS_EXPAND_PGAD_FORM_HNDL_PHY_NUM |
1273 	    (phy_number << MPI2_SAS_EXPAND_PGAD_PHYNUM_SHIFT) | handle);
1274 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
1275 	r = _config_request(ioc, &mpi_request, mpi_reply,
1276 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
1277 	    sizeof(*config_page));
1278  out:
1279 	return r;
1280 }
1281 
1282 /**
1283  * mpt3sas_config_get_enclosure_pg0 - obtain enclosure page 0
1284  * @ioc: per adapter object
1285  * @mpi_reply: reply mf payload returned from firmware
1286  * @config_page: contents of the config page
1287  * @form: GET_NEXT_HANDLE or HANDLE
1288  * @handle: expander handle
1289  * Context: sleep.
1290  *
1291  * Returns 0 for success, non-zero for failure.
1292  */
1293 int
1294 mpt3sas_config_get_enclosure_pg0(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
1295 	*mpi_reply, Mpi2SasEnclosurePage0_t *config_page, u32 form, u32 handle)
1296 {
1297 	Mpi2ConfigRequest_t mpi_request;
1298 	int r;
1299 
1300 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
1301 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
1302 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
1303 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
1304 	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_ENCLOSURE;
1305 	mpi_request.Header.PageNumber = 0;
1306 	mpi_request.Header.PageVersion = MPI2_SASENCLOSURE0_PAGEVERSION;
1307 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
1308 	r = _config_request(ioc, &mpi_request, mpi_reply,
1309 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
1310 	if (r)
1311 		goto out;
1312 
1313 	mpi_request.PageAddress = cpu_to_le32(form | handle);
1314 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
1315 	r = _config_request(ioc, &mpi_request, mpi_reply,
1316 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
1317 	    sizeof(*config_page));
1318  out:
1319 	return r;
1320 }
1321 
1322 /**
1323  * mpt3sas_config_get_phy_pg0 - obtain phy page 0
1324  * @ioc: per adapter object
1325  * @mpi_reply: reply mf payload returned from firmware
1326  * @config_page: contents of the config page
1327  * @phy_number: phy number
1328  * Context: sleep.
1329  *
1330  * Returns 0 for success, non-zero for failure.
1331  */
1332 int
1333 mpt3sas_config_get_phy_pg0(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
1334 	*mpi_reply, Mpi2SasPhyPage0_t *config_page, u32 phy_number)
1335 {
1336 	Mpi2ConfigRequest_t mpi_request;
1337 	int r;
1338 
1339 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
1340 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
1341 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
1342 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
1343 	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_SAS_PHY;
1344 	mpi_request.Header.PageNumber = 0;
1345 	mpi_request.Header.PageVersion = MPI2_SASPHY0_PAGEVERSION;
1346 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
1347 	r = _config_request(ioc, &mpi_request, mpi_reply,
1348 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
1349 	if (r)
1350 		goto out;
1351 
1352 	mpi_request.PageAddress =
1353 	    cpu_to_le32(MPI2_SAS_PHY_PGAD_FORM_PHY_NUMBER | phy_number);
1354 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
1355 	r = _config_request(ioc, &mpi_request, mpi_reply,
1356 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
1357 	    sizeof(*config_page));
1358  out:
1359 	return r;
1360 }
1361 
1362 /**
1363  * mpt3sas_config_get_phy_pg1 - obtain phy page 1
1364  * @ioc: per adapter object
1365  * @mpi_reply: reply mf payload returned from firmware
1366  * @config_page: contents of the config page
1367  * @phy_number: phy number
1368  * Context: sleep.
1369  *
1370  * Returns 0 for success, non-zero for failure.
1371  */
1372 int
1373 mpt3sas_config_get_phy_pg1(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
1374 	*mpi_reply, Mpi2SasPhyPage1_t *config_page, u32 phy_number)
1375 {
1376 	Mpi2ConfigRequest_t mpi_request;
1377 	int r;
1378 
1379 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
1380 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
1381 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
1382 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
1383 	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_SAS_PHY;
1384 	mpi_request.Header.PageNumber = 1;
1385 	mpi_request.Header.PageVersion = MPI2_SASPHY1_PAGEVERSION;
1386 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
1387 	r = _config_request(ioc, &mpi_request, mpi_reply,
1388 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
1389 	if (r)
1390 		goto out;
1391 
1392 	mpi_request.PageAddress =
1393 	    cpu_to_le32(MPI2_SAS_PHY_PGAD_FORM_PHY_NUMBER | phy_number);
1394 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
1395 	r = _config_request(ioc, &mpi_request, mpi_reply,
1396 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
1397 	    sizeof(*config_page));
1398  out:
1399 	return r;
1400 }
1401 
1402 /**
1403  * mpt3sas_config_get_raid_volume_pg1 - obtain raid volume page 1
1404  * @ioc: per adapter object
1405  * @mpi_reply: reply mf payload returned from firmware
1406  * @config_page: contents of the config page
1407  * @form: GET_NEXT_HANDLE or HANDLE
1408  * @handle: volume handle
1409  * Context: sleep.
1410  *
1411  * Returns 0 for success, non-zero for failure.
1412  */
1413 int
1414 mpt3sas_config_get_raid_volume_pg1(struct MPT3SAS_ADAPTER *ioc,
1415 	Mpi2ConfigReply_t *mpi_reply, Mpi2RaidVolPage1_t *config_page, u32 form,
1416 	u32 handle)
1417 {
1418 	Mpi2ConfigRequest_t mpi_request;
1419 	int r;
1420 
1421 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
1422 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
1423 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
1424 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_RAID_VOLUME;
1425 	mpi_request.Header.PageNumber = 1;
1426 	mpi_request.Header.PageVersion = MPI2_RAIDVOLPAGE1_PAGEVERSION;
1427 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
1428 	r = _config_request(ioc, &mpi_request, mpi_reply,
1429 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
1430 	if (r)
1431 		goto out;
1432 
1433 	mpi_request.PageAddress = cpu_to_le32(form | handle);
1434 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
1435 	r = _config_request(ioc, &mpi_request, mpi_reply,
1436 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
1437 	    sizeof(*config_page));
1438  out:
1439 	return r;
1440 }
1441 
1442 /**
1443  * mpt3sas_config_get_number_pds - obtain number of phys disk assigned to volume
1444  * @ioc: per adapter object
1445  * @handle: volume handle
1446  * @num_pds: returns pds count
1447  * Context: sleep.
1448  *
1449  * Returns 0 for success, non-zero for failure.
1450  */
1451 int
1452 mpt3sas_config_get_number_pds(struct MPT3SAS_ADAPTER *ioc, u16 handle,
1453 	u8 *num_pds)
1454 {
1455 	Mpi2ConfigRequest_t mpi_request;
1456 	Mpi2RaidVolPage0_t config_page;
1457 	Mpi2ConfigReply_t mpi_reply;
1458 	int r;
1459 	u16 ioc_status;
1460 
1461 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
1462 	*num_pds = 0;
1463 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
1464 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
1465 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_RAID_VOLUME;
1466 	mpi_request.Header.PageNumber = 0;
1467 	mpi_request.Header.PageVersion = MPI2_RAIDVOLPAGE0_PAGEVERSION;
1468 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
1469 	r = _config_request(ioc, &mpi_request, &mpi_reply,
1470 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
1471 	if (r)
1472 		goto out;
1473 
1474 	mpi_request.PageAddress =
1475 	    cpu_to_le32(MPI2_RAID_VOLUME_PGAD_FORM_HANDLE | handle);
1476 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
1477 	r = _config_request(ioc, &mpi_request, &mpi_reply,
1478 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, &config_page,
1479 	    sizeof(Mpi2RaidVolPage0_t));
1480 	if (!r) {
1481 		ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1482 		    MPI2_IOCSTATUS_MASK;
1483 		if (ioc_status == MPI2_IOCSTATUS_SUCCESS)
1484 			*num_pds = config_page.NumPhysDisks;
1485 	}
1486 
1487  out:
1488 	return r;
1489 }
1490 
1491 /**
1492  * mpt3sas_config_get_raid_volume_pg0 - obtain raid volume page 0
1493  * @ioc: per adapter object
1494  * @mpi_reply: reply mf payload returned from firmware
1495  * @config_page: contents of the config page
1496  * @form: GET_NEXT_HANDLE or HANDLE
1497  * @handle: volume handle
1498  * @sz: size of buffer passed in config_page
1499  * Context: sleep.
1500  *
1501  * Returns 0 for success, non-zero for failure.
1502  */
1503 int
1504 mpt3sas_config_get_raid_volume_pg0(struct MPT3SAS_ADAPTER *ioc,
1505 	Mpi2ConfigReply_t *mpi_reply, Mpi2RaidVolPage0_t *config_page, u32 form,
1506 	u32 handle, u16 sz)
1507 {
1508 	Mpi2ConfigRequest_t mpi_request;
1509 	int r;
1510 
1511 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
1512 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
1513 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
1514 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_RAID_VOLUME;
1515 	mpi_request.Header.PageNumber = 0;
1516 	mpi_request.Header.PageVersion = MPI2_RAIDVOLPAGE0_PAGEVERSION;
1517 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
1518 	r = _config_request(ioc, &mpi_request, mpi_reply,
1519 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
1520 	if (r)
1521 		goto out;
1522 
1523 	mpi_request.PageAddress = cpu_to_le32(form | handle);
1524 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
1525 	r = _config_request(ioc, &mpi_request, mpi_reply,
1526 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page, sz);
1527  out:
1528 	return r;
1529 }
1530 
1531 /**
1532  * mpt3sas_config_get_phys_disk_pg0 - obtain phys disk page 0
1533  * @ioc: per adapter object
1534  * @mpi_reply: reply mf payload returned from firmware
1535  * @config_page: contents of the config page
1536  * @form: GET_NEXT_PHYSDISKNUM, PHYSDISKNUM, DEVHANDLE
1537  * @form_specific: specific to the form
1538  * Context: sleep.
1539  *
1540  * Returns 0 for success, non-zero for failure.
1541  */
1542 int
1543 mpt3sas_config_get_phys_disk_pg0(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
1544 	*mpi_reply, Mpi2RaidPhysDiskPage0_t *config_page, u32 form,
1545 	u32 form_specific)
1546 {
1547 	Mpi2ConfigRequest_t mpi_request;
1548 	int r;
1549 
1550 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
1551 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
1552 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
1553 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_RAID_PHYSDISK;
1554 	mpi_request.Header.PageNumber = 0;
1555 	mpi_request.Header.PageVersion = MPI2_RAIDPHYSDISKPAGE0_PAGEVERSION;
1556 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
1557 	r = _config_request(ioc, &mpi_request, mpi_reply,
1558 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
1559 	if (r)
1560 		goto out;
1561 
1562 	mpi_request.PageAddress = cpu_to_le32(form | form_specific);
1563 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
1564 	r = _config_request(ioc, &mpi_request, mpi_reply,
1565 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
1566 	    sizeof(*config_page));
1567  out:
1568 	return r;
1569 }
1570 
1571 /**
1572  * mpt3sas_config_get_volume_handle - returns volume handle for give hidden
1573  * raid components
1574  * @ioc: per adapter object
1575  * @pd_handle: phys disk handle
1576  * @volume_handle: volume handle
1577  * Context: sleep.
1578  *
1579  * Returns 0 for success, non-zero for failure.
1580  */
1581 int
1582 mpt3sas_config_get_volume_handle(struct MPT3SAS_ADAPTER *ioc, u16 pd_handle,
1583 	u16 *volume_handle)
1584 {
1585 	Mpi2RaidConfigurationPage0_t *config_page = NULL;
1586 	Mpi2ConfigRequest_t mpi_request;
1587 	Mpi2ConfigReply_t mpi_reply;
1588 	int r, i, config_page_sz;
1589 	u16 ioc_status;
1590 	int config_num;
1591 	u16 element_type;
1592 	u16 phys_disk_dev_handle;
1593 
1594 	*volume_handle = 0;
1595 	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
1596 	mpi_request.Function = MPI2_FUNCTION_CONFIG;
1597 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
1598 	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
1599 	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_RAID_CONFIG;
1600 	mpi_request.Header.PageVersion = MPI2_RAIDCONFIG0_PAGEVERSION;
1601 	mpi_request.Header.PageNumber = 0;
1602 	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
1603 	r = _config_request(ioc, &mpi_request, &mpi_reply,
1604 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
1605 	if (r)
1606 		goto out;
1607 
1608 	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
1609 	config_page_sz = (le16_to_cpu(mpi_reply.ExtPageLength) * 4);
1610 	config_page = kmalloc(config_page_sz, GFP_KERNEL);
1611 	if (!config_page) {
1612 		r = -1;
1613 		goto out;
1614 	}
1615 
1616 	config_num = 0xff;
1617 	while (1) {
1618 		mpi_request.PageAddress = cpu_to_le32(config_num +
1619 		    MPI2_RAID_PGAD_FORM_GET_NEXT_CONFIGNUM);
1620 		r = _config_request(ioc, &mpi_request, &mpi_reply,
1621 		    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
1622 		    config_page_sz);
1623 		if (r)
1624 			goto out;
1625 		r = -1;
1626 		ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1627 		    MPI2_IOCSTATUS_MASK;
1628 		if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
1629 			goto out;
1630 		for (i = 0; i < config_page->NumElements; i++) {
1631 			element_type = le16_to_cpu(config_page->
1632 			    ConfigElement[i].ElementFlags) &
1633 			    MPI2_RAIDCONFIG0_EFLAGS_MASK_ELEMENT_TYPE;
1634 			if (element_type ==
1635 			    MPI2_RAIDCONFIG0_EFLAGS_VOL_PHYS_DISK_ELEMENT ||
1636 			    element_type ==
1637 			    MPI2_RAIDCONFIG0_EFLAGS_OCE_ELEMENT) {
1638 				phys_disk_dev_handle =
1639 				    le16_to_cpu(config_page->ConfigElement[i].
1640 				    PhysDiskDevHandle);
1641 				if (phys_disk_dev_handle == pd_handle) {
1642 					*volume_handle =
1643 					    le16_to_cpu(config_page->
1644 					    ConfigElement[i].VolDevHandle);
1645 					r = 0;
1646 					goto out;
1647 				}
1648 			} else if (element_type ==
1649 			    MPI2_RAIDCONFIG0_EFLAGS_HOT_SPARE_ELEMENT) {
1650 				*volume_handle = 0;
1651 				r = 0;
1652 				goto out;
1653 			}
1654 		}
1655 		config_num = config_page->ConfigNum;
1656 	}
1657  out:
1658 	kfree(config_page);
1659 	return r;
1660 }
1661 
1662 /**
1663  * mpt3sas_config_get_volume_wwid - returns wwid given the volume handle
1664  * @ioc: per adapter object
1665  * @volume_handle: volume handle
1666  * @wwid: volume wwid
1667  * Context: sleep.
1668  *
1669  * Returns 0 for success, non-zero for failure.
1670  */
1671 int
1672 mpt3sas_config_get_volume_wwid(struct MPT3SAS_ADAPTER *ioc, u16 volume_handle,
1673 	u64 *wwid)
1674 {
1675 	Mpi2ConfigReply_t mpi_reply;
1676 	Mpi2RaidVolPage1_t raid_vol_pg1;
1677 
1678 	*wwid = 0;
1679 	if (!(mpt3sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
1680 	    &raid_vol_pg1, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE,
1681 	    volume_handle))) {
1682 		*wwid = le64_to_cpu(raid_vol_pg1.WWID);
1683 		return 0;
1684 	} else
1685 		return -1;
1686 }
1687