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[SCSI] mpt2sas: Introduced check for enclosure_handle to avoid crash
[linux-2.6-block.git] / drivers / scsi / mpt2sas / mpt2sas_scsih.c
CommitLineData
635374e7
EM		 1/*
2 * Scsi Host Layer for MPT (Message Passing Technology) based controllers
3 *
4 * This code is based on drivers/scsi/mpt2sas/mpt2_scsih.c
5 * Copyright (C) 2007-2008 LSI Corporation
6 * (mailto:DL-MPTFusionLinux@lsi.com)
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * NO WARRANTY
19 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
20 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
21 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
22 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
23 * solely responsible for determining the appropriateness of using and
24 * distributing the Program and assumes all risks associated with its
25 * exercise of rights under this Agreement, including but not limited to
26 * the risks and costs of program errors, damage to or loss of data,
27 * programs or equipment, and unavailability or interruption of operations.
28
29 * DISCLAIMER OF LIABILITY
30 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
31 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
33 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
34 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
35 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
36 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
37
38 * You should have received a copy of the GNU General Public License
39 * along with this program; if not, write to the Free Software
40 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
41 * USA.
42 */
43
44#include <linux/version.h>
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#include <linux/interrupt.h>
55
56#include "mpt2sas_base.h"
57
58MODULE_AUTHOR(MPT2SAS_AUTHOR);
59MODULE_DESCRIPTION(MPT2SAS_DESCRIPTION);
60MODULE_LICENSE("GPL");
61MODULE_VERSION(MPT2SAS_DRIVER_VERSION);
62
63#define RAID_CHANNEL 1
64
65/* forward proto's */
66static void _scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
67 struct _sas_node *sas_expander);
68static void _firmware_event_work(struct work_struct *work);
69
70/* global parameters */
ba33fadf 71LIST_HEAD(mpt2sas_ioc_list);
635374e7
EM		 72
73/* local parameters */
635374e7
EM		 74static u8 scsi_io_cb_idx = -1;
75static u8 tm_cb_idx = -1;
76static u8 ctl_cb_idx = -1;
77static u8 base_cb_idx = -1;
78static u8 transport_cb_idx = -1;
79static u8 config_cb_idx = -1;
80static int mpt_ids;
81
82/* command line options */
ba33fadf 83static u32 logging_level;
635374e7
EM		 84MODULE_PARM_DESC(logging_level, " bits for enabling additional logging info "
85 "(default=0)");
86
87/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
88#define MPT2SAS_MAX_LUN (16895)
89static int max_lun = MPT2SAS_MAX_LUN;
90module_param(max_lun, int, 0);
91MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
92
93/**
94 * struct sense_info - common structure for obtaining sense keys
95 * @skey: sense key
96 * @asc: additional sense code
97 * @ascq: additional sense code qualifier
98 */
99struct sense_info {
100 u8 skey;
101 u8 asc;
102 u8 ascq;
103};
104
105
106#define MPT2SAS_RESCAN_AFTER_HOST_RESET (0xFFFF)
107/**
108 * struct fw_event_work - firmware event struct
109 * @list: link list framework
110 * @work: work object (ioc->fault_reset_work_q)
111 * @ioc: per adapter object
112 * @VF_ID: virtual function id
113 * @host_reset_handling: handling events during host reset
114 * @ignore: flag meaning this event has been marked to ignore
115 * @event: firmware event MPI2_EVENT_XXX defined in mpt2_ioc.h
116 * @event_data: reply event data payload follows
117 *
118 * This object stored on ioc->fw_event_list.
119 */
120struct fw_event_work {
121 struct list_head list;
6f92a7a0 122 struct work_struct work;
635374e7
EM		 123 struct MPT2SAS_ADAPTER *ioc;
124 u8 VF_ID;
125 u8 host_reset_handling;
126 u8 ignore;
127 u16 event;
128 void *event_data;
129};
130
131/**
132 * struct _scsi_io_transfer - scsi io transfer
133 * @handle: sas device handle (assigned by firmware)
134 * @is_raid: flag set for hidden raid components
135 * @dir: DMA_TO_DEVICE, DMA_FROM_DEVICE,
136 * @data_length: data transfer length
137 * @data_dma: dma pointer to data
138 * @sense: sense data
139 * @lun: lun number
140 * @cdb_length: cdb length
141 * @cdb: cdb contents
142 * @valid_reply: flag set for reply message
143 * @timeout: timeout for this command
144 * @sense_length: sense length
145 * @ioc_status: ioc status
146 * @scsi_state: scsi state
147 * @scsi_status: scsi staus
148 * @log_info: log information
149 * @transfer_length: data length transfer when there is a reply message
150 *
151 * Used for sending internal scsi commands to devices within this module.
152 * Refer to _scsi_send_scsi_io().
153 */
154struct _scsi_io_transfer {
155 u16 handle;
156 u8 is_raid;
157 enum dma_data_direction dir;
158 u32 data_length;
159 dma_addr_t data_dma;
160 u8 sense[SCSI_SENSE_BUFFERSIZE];
161 u32 lun;
162 u8 cdb_length;
163 u8 cdb[32];
164 u8 timeout;
165 u8 valid_reply;
166 /* the following bits are only valid when 'valid_reply = 1' */
167 u32 sense_length;
168 u16 ioc_status;
169 u8 scsi_state;
170 u8 scsi_status;
171 u32 log_info;
172 u32 transfer_length;
173};
174
175/*
176 * The pci device ids are defined in mpi/mpi2_cnfg.h.
177 */
178static struct pci_device_id scsih_pci_table[] = {
179 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004,
180 PCI_ANY_ID, PCI_ANY_ID },
181 /* Falcon ~ 2008*/
182 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2008,
183 PCI_ANY_ID, PCI_ANY_ID },
184 /* Liberator ~ 2108 */
185 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_1,
186 PCI_ANY_ID, PCI_ANY_ID },
187 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_2,
188 PCI_ANY_ID, PCI_ANY_ID },
189 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_3,
190 PCI_ANY_ID, PCI_ANY_ID },
191 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_1,
192 PCI_ANY_ID, PCI_ANY_ID },
193 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2,
194 PCI_ANY_ID, PCI_ANY_ID },
195 {0} /* Terminating entry */
196};
197MODULE_DEVICE_TABLE(pci, scsih_pci_table);
198
199/**
d5d135b3 200 * _scsih_set_debug_level - global setting of ioc->logging_level.
635374e7
EM		 201 *
202 * Note: The logging levels are defined in mpt2sas_debug.h.
203 */
204static int
d5d135b3 205_scsih_set_debug_level(const char *val, struct kernel_param *kp)
635374e7
EM		 206{
207 int ret = param_set_int(val, kp);
208 struct MPT2SAS_ADAPTER *ioc;
209
210 if (ret)
211 return ret;
212
213 printk(KERN_INFO "setting logging_level(0x%08x)\n", logging_level);
ba33fadf 214 list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
635374e7
EM		 215 ioc->logging_level = logging_level;
216 return 0;
217}
d5d135b3 218module_param_call(logging_level, _scsih_set_debug_level, param_get_int,
635374e7
EM		 219 &logging_level, 0644);
220
221/**
222 * _scsih_srch_boot_sas_address - search based on sas_address
223 * @sas_address: sas address
224 * @boot_device: boot device object from bios page 2
225 *
226 * Returns 1 when there's a match, 0 means no match.
227 */
228static inline int
229_scsih_srch_boot_sas_address(u64 sas_address,
230 Mpi2BootDeviceSasWwid_t *boot_device)
231{
232 return (sas_address == le64_to_cpu(boot_device->SASAddress)) ? 1 : 0;
233}
234
235/**
236 * _scsih_srch_boot_device_name - search based on device name
237 * @device_name: device name specified in INDENTIFY fram
238 * @boot_device: boot device object from bios page 2
239 *
240 * Returns 1 when there's a match, 0 means no match.
241 */
242static inline int
243_scsih_srch_boot_device_name(u64 device_name,
244 Mpi2BootDeviceDeviceName_t *boot_device)
245{
246 return (device_name == le64_to_cpu(boot_device->DeviceName)) ? 1 : 0;
247}
248
249/**
250 * _scsih_srch_boot_encl_slot - search based on enclosure_logical_id/slot
251 * @enclosure_logical_id: enclosure logical id
252 * @slot_number: slot number
253 * @boot_device: boot device object from bios page 2
254 *
255 * Returns 1 when there's a match, 0 means no match.
256 */
257static inline int
258_scsih_srch_boot_encl_slot(u64 enclosure_logical_id, u16 slot_number,
259 Mpi2BootDeviceEnclosureSlot_t *boot_device)
260{
261 return (enclosure_logical_id == le64_to_cpu(boot_device->
262 EnclosureLogicalID) && slot_number == le16_to_cpu(boot_device->
263 SlotNumber)) ? 1 : 0;
264}
265
266/**
267 * _scsih_is_boot_device - search for matching boot device.
268 * @sas_address: sas address
269 * @device_name: device name specified in INDENTIFY fram
270 * @enclosure_logical_id: enclosure logical id
271 * @slot_number: slot number
272 * @form: specifies boot device form
273 * @boot_device: boot device object from bios page 2
274 *
275 * Returns 1 when there's a match, 0 means no match.
276 */
277static int
278_scsih_is_boot_device(u64 sas_address, u64 device_name,
279 u64 enclosure_logical_id, u16 slot, u8 form,
280 Mpi2BiosPage2BootDevice_t *boot_device)
281{
282 int rc = 0;
283
284 switch (form) {
285 case MPI2_BIOSPAGE2_FORM_SAS_WWID:
286 if (!sas_address)
287 break;
288 rc = _scsih_srch_boot_sas_address(
289 sas_address, &boot_device->SasWwid);
290 break;
291 case MPI2_BIOSPAGE2_FORM_ENCLOSURE_SLOT:
292 if (!enclosure_logical_id)
293 break;
294 rc = _scsih_srch_boot_encl_slot(
295 enclosure_logical_id,
296 slot, &boot_device->EnclosureSlot);
297 break;
298 case MPI2_BIOSPAGE2_FORM_DEVICE_NAME:
299 if (!device_name)
300 break;
301 rc = _scsih_srch_boot_device_name(
302 device_name, &boot_device->DeviceName);
303 break;
304 case MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED:
305 break;
306 }
307
308 return rc;
309}
310
311/**
312 * _scsih_determine_boot_device - determine boot device.
313 * @ioc: per adapter object
314 * @device: either sas_device or raid_device object
315 * @is_raid: [flag] 1 = raid object, 0 = sas object
316 *
317 * Determines whether this device should be first reported device to
318 * to scsi-ml or sas transport, this purpose is for persistant boot device.
319 * There are primary, alternate, and current entries in bios page 2. The order
320 * priority is primary, alternate, then current. This routine saves
321 * the corresponding device object and is_raid flag in the ioc object.
322 * The saved data to be used later in _scsih_probe_boot_devices().
323 */
324static void
325_scsih_determine_boot_device(struct MPT2SAS_ADAPTER *ioc,
326 void *device, u8 is_raid)
327{
328 struct _sas_device *sas_device;
329 struct _raid_device *raid_device;
330 u64 sas_address;
331 u64 device_name;
332 u64 enclosure_logical_id;
333 u16 slot;
334
335 /* only process this function when driver loads */
336 if (!ioc->wait_for_port_enable_to_complete)
337 return;
338
339 if (!is_raid) {
340 sas_device = device;
341 sas_address = sas_device->sas_address;
342 device_name = sas_device->device_name;
343 enclosure_logical_id = sas_device->enclosure_logical_id;
344 slot = sas_device->slot;
345 } else {
346 raid_device = device;
347 sas_address = raid_device->wwid;
348 device_name = 0;
349 enclosure_logical_id = 0;
350 slot = 0;
351 }
352
353 if (!ioc->req_boot_device.device) {
354 if (_scsih_is_boot_device(sas_address, device_name,
355 enclosure_logical_id, slot,
356 (ioc->bios_pg2.ReqBootDeviceForm &
357 MPI2_BIOSPAGE2_FORM_MASK),
358 &ioc->bios_pg2.RequestedBootDevice)) {
359 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
360 "%s: req_boot_device(0x%016llx)\n",
361 ioc->name, __func__,
362 (unsigned long long)sas_address));
363 ioc->req_boot_device.device = device;
364 ioc->req_boot_device.is_raid = is_raid;
365 }
366 }
367
368 if (!ioc->req_alt_boot_device.device) {
369 if (_scsih_is_boot_device(sas_address, device_name,
370 enclosure_logical_id, slot,
371 (ioc->bios_pg2.ReqAltBootDeviceForm &
372 MPI2_BIOSPAGE2_FORM_MASK),
373 &ioc->bios_pg2.RequestedAltBootDevice)) {
374 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
375 "%s: req_alt_boot_device(0x%016llx)\n",
376 ioc->name, __func__,
377 (unsigned long long)sas_address));
378 ioc->req_alt_boot_device.device = device;
379 ioc->req_alt_boot_device.is_raid = is_raid;
380 }
381 }
382
383 if (!ioc->current_boot_device.device) {
384 if (_scsih_is_boot_device(sas_address, device_name,
385 enclosure_logical_id, slot,
386 (ioc->bios_pg2.CurrentBootDeviceForm &
387 MPI2_BIOSPAGE2_FORM_MASK),
388 &ioc->bios_pg2.CurrentBootDevice)) {
389 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
390 "%s: current_boot_device(0x%016llx)\n",
391 ioc->name, __func__,
392 (unsigned long long)sas_address));
393 ioc->current_boot_device.device = device;
394 ioc->current_boot_device.is_raid = is_raid;
395 }
396 }
397}
398
399/**
400 * mpt2sas_scsih_sas_device_find_by_sas_address - sas device search
401 * @ioc: per adapter object
402 * @sas_address: sas address
403 * Context: Calling function should acquire ioc->sas_device_lock
404 *
405 * This searches for sas_device based on sas_address, then return sas_device
406 * object.
407 */
408struct _sas_device *
409mpt2sas_scsih_sas_device_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
410 u64 sas_address)
411{
412 struct _sas_device *sas_device, *r;
413
414 r = NULL;
415 /* check the sas_device_init_list */
416 list_for_each_entry(sas_device, &ioc->sas_device_init_list,
417 list) {
418 if (sas_device->sas_address != sas_address)
419 continue;
420 r = sas_device;
421 goto out;
422 }
423
424 /* then check the sas_device_list */
425 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
426 if (sas_device->sas_address != sas_address)
427 continue;
428 r = sas_device;
429 goto out;
430 }
431 out:
432 return r;
433}
434
435/**
436 * _scsih_sas_device_find_by_handle - sas device search
437 * @ioc: per adapter object
438 * @handle: sas device handle (assigned by firmware)
439 * Context: Calling function should acquire ioc->sas_device_lock
440 *
441 * This searches for sas_device based on sas_address, then return sas_device
442 * object.
443 */
444static struct _sas_device *
445_scsih_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
446{
447 struct _sas_device *sas_device, *r;
448
449 r = NULL;
450 if (ioc->wait_for_port_enable_to_complete) {
451 list_for_each_entry(sas_device, &ioc->sas_device_init_list,
452 list) {
453 if (sas_device->handle != handle)
454 continue;
455 r = sas_device;
456 goto out;
457 }
458 } else {
459 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
460 if (sas_device->handle != handle)
461 continue;
462 r = sas_device;
463 goto out;
464 }
465 }
466
467 out:
468 return r;
469}
470
471/**
472 * _scsih_sas_device_remove - remove sas_device from list.
473 * @ioc: per adapter object
474 * @sas_device: the sas_device object
475 * Context: This function will acquire ioc->sas_device_lock.
476 *
477 * Removing object and freeing associated memory from the ioc->sas_device_list.
478 */
479static void
480_scsih_sas_device_remove(struct MPT2SAS_ADAPTER *ioc,
481 struct _sas_device *sas_device)
482{
483 unsigned long flags;
484
485 spin_lock_irqsave(&ioc->sas_device_lock, flags);
486 list_del(&sas_device->list);
487 memset(sas_device, 0, sizeof(struct _sas_device));
488 kfree(sas_device);
489 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
490}
491
492/**
493 * _scsih_sas_device_add - insert sas_device to the list.
494 * @ioc: per adapter object
495 * @sas_device: the sas_device object
496 * Context: This function will acquire ioc->sas_device_lock.
497 *
498 * Adding new object to the ioc->sas_device_list.
499 */
500static void
501_scsih_sas_device_add(struct MPT2SAS_ADAPTER *ioc,
502 struct _sas_device *sas_device)
503{
504 unsigned long flags;
505 u16 handle, parent_handle;
506 u64 sas_address;
507
508 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
509 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
510 sas_device->handle, (unsigned long long)sas_device->sas_address));
511
512 spin_lock_irqsave(&ioc->sas_device_lock, flags);
513 list_add_tail(&sas_device->list, &ioc->sas_device_list);
514 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
515
516 handle = sas_device->handle;
517 parent_handle = sas_device->parent_handle;
518 sas_address = sas_device->sas_address;
8901cbb4 519 if (!mpt2sas_transport_port_add(ioc, handle, parent_handle))
635374e7 520 _scsih_sas_device_remove(ioc, sas_device);
635374e7
EM		 521}
522
523/**
524 * _scsih_sas_device_init_add - insert sas_device to the list.
525 * @ioc: per adapter object
526 * @sas_device: the sas_device object
527 * Context: This function will acquire ioc->sas_device_lock.
528 *
529 * Adding new object at driver load time to the ioc->sas_device_init_list.
530 */
531static void
532_scsih_sas_device_init_add(struct MPT2SAS_ADAPTER *ioc,
533 struct _sas_device *sas_device)
534{
535 unsigned long flags;
536
537 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
538 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
539 sas_device->handle, (unsigned long long)sas_device->sas_address));
540
541 spin_lock_irqsave(&ioc->sas_device_lock, flags);
542 list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
543 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
544 _scsih_determine_boot_device(ioc, sas_device, 0);
545}
546
547/**
548 * mpt2sas_scsih_expander_find_by_handle - expander device search
549 * @ioc: per adapter object
550 * @handle: expander handle (assigned by firmware)
551 * Context: Calling function should acquire ioc->sas_device_lock
552 *
553 * This searches for expander device based on handle, then returns the
554 * sas_node object.
555 */
556struct _sas_node *
557mpt2sas_scsih_expander_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
558{
559 struct _sas_node *sas_expander, *r;
560
561 r = NULL;
562 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
563 if (sas_expander->handle != handle)
564 continue;
565 r = sas_expander;
566 goto out;
567 }
568 out:
569 return r;
570}
571
572/**
573 * _scsih_raid_device_find_by_id - raid device search
574 * @ioc: per adapter object
575 * @id: sas device target id
576 * @channel: sas device channel
577 * Context: Calling function should acquire ioc->raid_device_lock
578 *
579 * This searches for raid_device based on target id, then return raid_device
580 * object.
581 */
582static struct _raid_device *
583_scsih_raid_device_find_by_id(struct MPT2SAS_ADAPTER *ioc, int id, int channel)
584{
585 struct _raid_device *raid_device, *r;
586
587 r = NULL;
588 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
589 if (raid_device->id == id && raid_device->channel == channel) {
590 r = raid_device;
591 goto out;
592 }
593 }
594
595 out:
596 return r;
597}
598
599/**
600 * _scsih_raid_device_find_by_handle - raid device search
601 * @ioc: per adapter object
602 * @handle: sas device handle (assigned by firmware)
603 * Context: Calling function should acquire ioc->raid_device_lock
604 *
605 * This searches for raid_device based on handle, then return raid_device
606 * object.
607 */
608static struct _raid_device *
609_scsih_raid_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
610{
611 struct _raid_device *raid_device, *r;
612
613 r = NULL;
614 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
615 if (raid_device->handle != handle)
616 continue;
617 r = raid_device;
618 goto out;
619 }
620
621 out:
622 return r;
623}
624
625/**
626 * _scsih_raid_device_find_by_wwid - raid device search
627 * @ioc: per adapter object
628 * @handle: sas device handle (assigned by firmware)
629 * Context: Calling function should acquire ioc->raid_device_lock
630 *
631 * This searches for raid_device based on wwid, then return raid_device
632 * object.
633 */
634static struct _raid_device *
635_scsih_raid_device_find_by_wwid(struct MPT2SAS_ADAPTER *ioc, u64 wwid)
636{
637 struct _raid_device *raid_device, *r;
638
639 r = NULL;
640 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
641 if (raid_device->wwid != wwid)
642 continue;
643 r = raid_device;
644 goto out;
645 }
646
647 out:
648 return r;
649}
650
651/**
652 * _scsih_raid_device_add - add raid_device object
653 * @ioc: per adapter object
654 * @raid_device: raid_device object
655 *
656 * This is added to the raid_device_list link list.
657 */
658static void
659_scsih_raid_device_add(struct MPT2SAS_ADAPTER *ioc,
660 struct _raid_device *raid_device)
661{
662 unsigned long flags;
663
664 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
665 "(0x%04x), wwid(0x%016llx)\n", ioc->name, __func__,
666 raid_device->handle, (unsigned long long)raid_device->wwid));
667
668 spin_lock_irqsave(&ioc->raid_device_lock, flags);
669 list_add_tail(&raid_device->list, &ioc->raid_device_list);
670 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
671}
672
673/**
674 * _scsih_raid_device_remove - delete raid_device object
675 * @ioc: per adapter object
676 * @raid_device: raid_device object
677 *
678 * This is removed from the raid_device_list link list.
679 */
680static void
681_scsih_raid_device_remove(struct MPT2SAS_ADAPTER *ioc,
682 struct _raid_device *raid_device)
683{
684 unsigned long flags;
685
686 spin_lock_irqsave(&ioc->raid_device_lock, flags);
687 list_del(&raid_device->list);
688 memset(raid_device, 0, sizeof(struct _raid_device));
689 kfree(raid_device);
690 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
691}
692
693/**
694 * mpt2sas_scsih_expander_find_by_sas_address - expander device search
695 * @ioc: per adapter object
696 * @sas_address: sas address
697 * Context: Calling function should acquire ioc->sas_node_lock.
698 *
699 * This searches for expander device based on sas_address, then returns the
700 * sas_node object.
701 */
702struct _sas_node *
703mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
704 u64 sas_address)
705{
706 struct _sas_node *sas_expander, *r;
707
708 r = NULL;
709 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
710 if (sas_expander->sas_address != sas_address)
711 continue;
712 r = sas_expander;
713 goto out;
714 }
715 out:
716 return r;
717}
718
719/**
720 * _scsih_expander_node_add - insert expander device to the list.
721 * @ioc: per adapter object
722 * @sas_expander: the sas_device object
723 * Context: This function will acquire ioc->sas_node_lock.
724 *
725 * Adding new object to the ioc->sas_expander_list.
726 *
727 * Return nothing.
728 */
729static void
730_scsih_expander_node_add(struct MPT2SAS_ADAPTER *ioc,
731 struct _sas_node *sas_expander)
732{
733 unsigned long flags;
734
735 spin_lock_irqsave(&ioc->sas_node_lock, flags);
736 list_add_tail(&sas_expander->list, &ioc->sas_expander_list);
737 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
738}
739
740/**
741 * _scsih_is_end_device - determines if device is an end device
742 * @device_info: bitfield providing information about the device.
743 * Context: none
744 *
745 * Returns 1 if end device.
746 */
747static int
748_scsih_is_end_device(u32 device_info)
749{
750 if (device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE &&
751 ((device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) |
752 (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) |
753 (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))
754 return 1;
755 else
756 return 0;
757}
758
759/**
760 * _scsih_scsi_lookup_get - returns scmd entry
761 * @ioc: per adapter object
762 * @smid: system request message index
763 * Context: This function will acquire ioc->scsi_lookup_lock.
764 *
765 * Returns the smid stored scmd pointer.
766 */
767static struct scsi_cmnd *
768_scsih_scsi_lookup_get(struct MPT2SAS_ADAPTER *ioc, u16 smid)
769{
770 unsigned long flags;
771 struct scsi_cmnd *scmd;
772
773 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
774 scmd = ioc->scsi_lookup[smid - 1].scmd;
775 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
776 return scmd;
777}
778
779/**
780 * mptscsih_getclear_scsi_lookup - returns scmd entry
781 * @ioc: per adapter object
782 * @smid: system request message index
783 * Context: This function will acquire ioc->scsi_lookup_lock.
784 *
785 * Returns the smid stored scmd pointer, as well as clearing the scmd pointer.
786 */
787static struct scsi_cmnd *
788_scsih_scsi_lookup_getclear(struct MPT2SAS_ADAPTER *ioc, u16 smid)
789{
790 unsigned long flags;
791 struct scsi_cmnd *scmd;
792
793 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
794 scmd = ioc->scsi_lookup[smid - 1].scmd;
795 ioc->scsi_lookup[smid - 1].scmd = NULL;
796 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
797 return scmd;
798}
799
800/**
801 * _scsih_scsi_lookup_set - updates scmd entry in lookup
802 * @ioc: per adapter object
803 * @smid: system request message index
804 * @scmd: pointer to scsi command object
805 * Context: This function will acquire ioc->scsi_lookup_lock.
806 *
807 * This will save scmd pointer in the scsi_lookup array.
808 *
809 * Return nothing.
810 */
811static void
812_scsih_scsi_lookup_set(struct MPT2SAS_ADAPTER *ioc, u16 smid,
813 struct scsi_cmnd *scmd)
814{
815 unsigned long flags;
816
817 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
818 ioc->scsi_lookup[smid - 1].scmd = scmd;
819 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
820}
821
822/**
823 * _scsih_scsi_lookup_find_by_scmd - scmd lookup
824 * @ioc: per adapter object
825 * @smid: system request message index
826 * @scmd: pointer to scsi command object
827 * Context: This function will acquire ioc->scsi_lookup_lock.
828 *
829 * This will search for a scmd pointer in the scsi_lookup array,
830 * returning the revelent smid. A returned value of zero means invalid.
831 */
832static u16
833_scsih_scsi_lookup_find_by_scmd(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd
834 *scmd)
835{
836 u16 smid;
837 unsigned long flags;
838 int i;
839
840 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
841 smid = 0;
842 for (i = 0; i < ioc->request_depth; i++) {
843 if (ioc->scsi_lookup[i].scmd == scmd) {
844 smid = i + 1;
845 goto out;
846 }
847 }
848 out:
849 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
850 return smid;
851}
852
853/**
854 * _scsih_scsi_lookup_find_by_target - search for matching channel:id
855 * @ioc: per adapter object
856 * @id: target id
857 * @channel: channel
858 * Context: This function will acquire ioc->scsi_lookup_lock.
859 *
860 * This will search for a matching channel:id in the scsi_lookup array,
861 * returning 1 if found.
862 */
863static u8
864_scsih_scsi_lookup_find_by_target(struct MPT2SAS_ADAPTER *ioc, int id,
865 int channel)
866{
867 u8 found;
868 unsigned long flags;
869 int i;
870
871 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
872 found = 0;
873 for (i = 0 ; i < ioc->request_depth; i++) {
874 if (ioc->scsi_lookup[i].scmd &&
875 (ioc->scsi_lookup[i].scmd->device->id == id &&
876 ioc->scsi_lookup[i].scmd->device->channel == channel)) {
877 found = 1;
878 goto out;
879 }
880 }
881 out:
882 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
883 return found;
884}
885
993e0da7
EM		 886/**
887 * _scsih_scsi_lookup_find_by_lun - search for matching channel:id:lun
888 * @ioc: per adapter object
889 * @id: target id
890 * @lun: lun number
891 * @channel: channel
892 * Context: This function will acquire ioc->scsi_lookup_lock.
893 *
894 * This will search for a matching channel:id:lun in the scsi_lookup array,
895 * returning 1 if found.
896 */
897static u8
898_scsih_scsi_lookup_find_by_lun(struct MPT2SAS_ADAPTER *ioc, int id,
899 unsigned int lun, int channel)
900{
901 u8 found;
902 unsigned long flags;
903 int i;
904
905 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
906 found = 0;
907 for (i = 0 ; i < ioc->request_depth; i++) {
908 if (ioc->scsi_lookup[i].scmd &&
909 (ioc->scsi_lookup[i].scmd->device->id == id &&
910 ioc->scsi_lookup[i].scmd->device->channel == channel &&
911 ioc->scsi_lookup[i].scmd->device->lun == lun)) {
912 found = 1;
913 goto out;
914 }
915 }
916 out:
917 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
918 return found;
919}
920
635374e7
EM		 921/**
922 * _scsih_get_chain_buffer_dma - obtain block of chains (dma address)
923 * @ioc: per adapter object
924 * @smid: system request message index
925 *
926 * Returns phys pointer to chain buffer.
927 */
928static dma_addr_t
929_scsih_get_chain_buffer_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid)
930{
931 return ioc->chain_dma + ((smid - 1) * (ioc->request_sz *
932 ioc->chains_needed_per_io));
933}
934
935/**
936 * _scsih_get_chain_buffer - obtain block of chains assigned to a mf request
937 * @ioc: per adapter object
938 * @smid: system request message index
939 *
940 * Returns virt pointer to chain buffer.
941 */
942static void *
943_scsih_get_chain_buffer(struct MPT2SAS_ADAPTER *ioc, u16 smid)
944{
945 return (void *)(ioc->chain + ((smid - 1) * (ioc->request_sz *
946 ioc->chains_needed_per_io)));
947}
948
949/**
950 * _scsih_build_scatter_gather - main sg creation routine
951 * @ioc: per adapter object
952 * @scmd: scsi command
953 * @smid: system request message index
954 * Context: none.
955 *
956 * The main routine that builds scatter gather table from a given
957 * scsi request sent via the .queuecommand main handler.
958 *
959 * Returns 0 success, anything else error
960 */
961static int
962_scsih_build_scatter_gather(struct MPT2SAS_ADAPTER *ioc,
963 struct scsi_cmnd *scmd, u16 smid)
964{
965 Mpi2SCSIIORequest_t *mpi_request;
966 dma_addr_t chain_dma;
967 struct scatterlist *sg_scmd;
968 void *sg_local, *chain;
969 u32 chain_offset;
970 u32 chain_length;
971 u32 chain_flags;
972 u32 sges_left;
973 u32 sges_in_segment;
974 u32 sgl_flags;
975 u32 sgl_flags_last_element;
976 u32 sgl_flags_end_buffer;
977
978 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
979
980 /* init scatter gather flags */
981 sgl_flags = MPI2_SGE_FLAGS_SIMPLE_ELEMENT;
982 if (scmd->sc_data_direction == DMA_TO_DEVICE)
983 sgl_flags |= MPI2_SGE_FLAGS_HOST_TO_IOC;
984 sgl_flags_last_element = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT)
985 << MPI2_SGE_FLAGS_SHIFT;
986 sgl_flags_end_buffer = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT |
987 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST)
988 << MPI2_SGE_FLAGS_SHIFT;
989 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
990
991 sg_scmd = scsi_sglist(scmd);
992 sges_left = scsi_dma_map(scmd);
993 if (!sges_left) {
994 sdev_printk(KERN_ERR, scmd->device, "pci_map_sg"
995 " failed: request for %d bytes!\n", scsi_bufflen(scmd));
996 return -ENOMEM;
997 }
998
999 sg_local = &mpi_request->SGL;
1000 sges_in_segment = ioc->max_sges_in_main_message;
1001 if (sges_left <= sges_in_segment)
1002 goto fill_in_last_segment;
1003
1004 mpi_request->ChainOffset = (offsetof(Mpi2SCSIIORequest_t, SGL) +
1005 (sges_in_segment * ioc->sge_size))/4;
1006
1007 /* fill in main message segment when there is a chain following */
1008 while (sges_in_segment) {
1009 if (sges_in_segment == 1)
1010 ioc->base_add_sg_single(sg_local,
1011 sgl_flags_last_element | sg_dma_len(sg_scmd),
1012 sg_dma_address(sg_scmd));
1013 else
1014 ioc->base_add_sg_single(sg_local, sgl_flags |
1015 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1016 sg_scmd = sg_next(sg_scmd);
1017 sg_local += ioc->sge_size;
1018 sges_left--;
1019 sges_in_segment--;
1020 }
1021
1022 /* initializing the chain flags and pointers */
1023 chain_flags = MPI2_SGE_FLAGS_CHAIN_ELEMENT << MPI2_SGE_FLAGS_SHIFT;
1024 chain = _scsih_get_chain_buffer(ioc, smid);
1025 chain_dma = _scsih_get_chain_buffer_dma(ioc, smid);
1026 do {
1027 sges_in_segment = (sges_left <=
1028 ioc->max_sges_in_chain_message) ? sges_left :
1029 ioc->max_sges_in_chain_message;
1030 chain_offset = (sges_left == sges_in_segment) ?
1031 0 : (sges_in_segment * ioc->sge_size)/4;
1032 chain_length = sges_in_segment * ioc->sge_size;
1033 if (chain_offset) {
1034 chain_offset = chain_offset <<
1035 MPI2_SGE_CHAIN_OFFSET_SHIFT;
1036 chain_length += ioc->sge_size;
1037 }
1038 ioc->base_add_sg_single(sg_local, chain_flags | chain_offset |
1039 chain_length, chain_dma);
1040 sg_local = chain;
1041 if (!chain_offset)
1042 goto fill_in_last_segment;
1043
1044 /* fill in chain segments */
1045 while (sges_in_segment) {
1046 if (sges_in_segment == 1)
1047 ioc->base_add_sg_single(sg_local,
1048 sgl_flags_last_element |
1049 sg_dma_len(sg_scmd),
1050 sg_dma_address(sg_scmd));
1051 else
1052 ioc->base_add_sg_single(sg_local, sgl_flags |
1053 sg_dma_len(sg_scmd),
1054 sg_dma_address(sg_scmd));
1055 sg_scmd = sg_next(sg_scmd);
1056 sg_local += ioc->sge_size;
1057 sges_left--;
1058 sges_in_segment--;
1059 }
1060
1061 chain_dma += ioc->request_sz;
1062 chain += ioc->request_sz;
1063 } while (1);
1064
1065
1066 fill_in_last_segment:
1067
1068 /* fill the last segment */
1069 while (sges_left) {
1070 if (sges_left == 1)
1071 ioc->base_add_sg_single(sg_local, sgl_flags_end_buffer |
1072 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1073 else
1074 ioc->base_add_sg_single(sg_local, sgl_flags |
1075 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1076 sg_scmd = sg_next(sg_scmd);
1077 sg_local += ioc->sge_size;
1078 sges_left--;
1079 }
1080
1081 return 0;
1082}
1083
1084/**
d5d135b3 1085 * _scsih_change_queue_depth - setting device queue depth
635374e7
EM		 1086 * @sdev: scsi device struct
1087 * @qdepth: requested queue depth
1088 *
1089 * Returns queue depth.
1090 */
1091static int
d5d135b3 1092_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
635374e7
EM		 1093{
1094 struct Scsi_Host *shost = sdev->host;
1095 int max_depth;
1096 int tag_type;
1097
1098 max_depth = shost->can_queue;
1099 if (!sdev->tagged_supported)
1100 max_depth = 1;
1101 if (qdepth > max_depth)
1102 qdepth = max_depth;
1103 tag_type = (qdepth == 1) ? 0 : MSG_SIMPLE_TAG;
1104 scsi_adjust_queue_depth(sdev, tag_type, qdepth);
1105
1106 if (sdev->inquiry_len > 7)
1107 sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), "
1108 "simple(%d), ordered(%d), scsi_level(%d), cmd_que(%d)\n",
1109 sdev->queue_depth, sdev->tagged_supported, sdev->simple_tags,
1110 sdev->ordered_tags, sdev->scsi_level,
1111 (sdev->inquiry[7] & 2) >> 1);
1112
1113 return sdev->queue_depth;
1114}
1115
1116/**
d5d135b3 1117 * _scsih_change_queue_depth - changing device queue tag type
635374e7
EM		 1118 * @sdev: scsi device struct
1119 * @tag_type: requested tag type
1120 *
1121 * Returns queue tag type.
1122 */
1123static int
d5d135b3 1124_scsih_change_queue_type(struct scsi_device *sdev, int tag_type)
635374e7
EM		 1125{
1126 if (sdev->tagged_supported) {
1127 scsi_set_tag_type(sdev, tag_type);
1128 if (tag_type)
1129 scsi_activate_tcq(sdev, sdev->queue_depth);
1130 else
1131 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1132 } else
1133 tag_type = 0;
1134
1135 return tag_type;
1136}
1137
1138/**
d5d135b3 1139 * _scsih_target_alloc - target add routine
635374e7
EM		 1140 * @starget: scsi target struct
1141 *
1142 * Returns 0 if ok. Any other return is assumed to be an error and
1143 * the device is ignored.
1144 */
1145static int
d5d135b3 1146_scsih_target_alloc(struct scsi_target *starget)
635374e7
EM		 1147{
1148 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1149 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1150 struct MPT2SAS_TARGET *sas_target_priv_data;
1151 struct _sas_device *sas_device;
1152 struct _raid_device *raid_device;
1153 unsigned long flags;
1154 struct sas_rphy *rphy;
1155
1156 sas_target_priv_data = kzalloc(sizeof(struct scsi_target), GFP_KERNEL);
1157 if (!sas_target_priv_data)
1158 return -ENOMEM;
1159
1160 starget->hostdata = sas_target_priv_data;
1161 sas_target_priv_data->starget = starget;
1162 sas_target_priv_data->handle = MPT2SAS_INVALID_DEVICE_HANDLE;
1163
1164 /* RAID volumes */
1165 if (starget->channel == RAID_CHANNEL) {
1166 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1167 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1168 starget->channel);
1169 if (raid_device) {
1170 sas_target_priv_data->handle = raid_device->handle;
1171 sas_target_priv_data->sas_address = raid_device->wwid;
1172 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME;
1173 raid_device->starget = starget;
1174 }
1175 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1176 return 0;
1177 }
1178
1179 /* sas/sata devices */
1180 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1181 rphy = dev_to_rphy(starget->dev.parent);
1182 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1183 rphy->identify.sas_address);
1184
1185 if (sas_device) {
1186 sas_target_priv_data->handle = sas_device->handle;
1187 sas_target_priv_data->sas_address = sas_device->sas_address;
1188 sas_device->starget = starget;
1189 sas_device->id = starget->id;
1190 sas_device->channel = starget->channel;
1191 if (sas_device->hidden_raid_component)
1192 sas_target_priv_data->flags |=
1193 MPT_TARGET_FLAGS_RAID_COMPONENT;
1194 }
1195 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1196
1197 return 0;
1198}
1199
1200/**
d5d135b3 1201 * _scsih_target_destroy - target destroy routine
635374e7
EM		 1202 * @starget: scsi target struct
1203 *
1204 * Returns nothing.
1205 */
1206static void
d5d135b3 1207_scsih_target_destroy(struct scsi_target *starget)
635374e7
EM		 1208{
1209 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1210 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1211 struct MPT2SAS_TARGET *sas_target_priv_data;
1212 struct _sas_device *sas_device;
1213 struct _raid_device *raid_device;
1214 unsigned long flags;
1215 struct sas_rphy *rphy;
1216
1217 sas_target_priv_data = starget->hostdata;
1218 if (!sas_target_priv_data)
1219 return;
1220
1221 if (starget->channel == RAID_CHANNEL) {
1222 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1223 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1224 starget->channel);
1225 if (raid_device) {
1226 raid_device->starget = NULL;
1227 raid_device->sdev = NULL;
1228 }
1229 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1230 goto out;
1231 }
1232
1233 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1234 rphy = dev_to_rphy(starget->dev.parent);
1235 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1236 rphy->identify.sas_address);
8901cbb4
EM		 1237 if (sas_device && (sas_device->starget == starget) &&
1238 (sas_device->id == starget->id) &&
1239 (sas_device->channel == starget->channel))
635374e7
EM		 1240 sas_device->starget = NULL;
1241
1242 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1243
1244 out:
1245 kfree(sas_target_priv_data);
1246 starget->hostdata = NULL;
1247}
1248
1249/**
d5d135b3 1250 * _scsih_slave_alloc - device add routine
635374e7
EM		 1251 * @sdev: scsi device struct
1252 *
1253 * Returns 0 if ok. Any other return is assumed to be an error and
1254 * the device is ignored.
1255 */
1256static int
d5d135b3 1257_scsih_slave_alloc(struct scsi_device *sdev)
635374e7
EM		 1258{
1259 struct Scsi_Host *shost;
1260 struct MPT2SAS_ADAPTER *ioc;
1261 struct MPT2SAS_TARGET *sas_target_priv_data;
1262 struct MPT2SAS_DEVICE *sas_device_priv_data;
1263 struct scsi_target *starget;
1264 struct _raid_device *raid_device;
1265 struct _sas_device *sas_device;
1266 unsigned long flags;
1267
1268 sas_device_priv_data = kzalloc(sizeof(struct scsi_device), GFP_KERNEL);
1269 if (!sas_device_priv_data)
1270 return -ENOMEM;
1271
1272 sas_device_priv_data->lun = sdev->lun;
1273 sas_device_priv_data->flags = MPT_DEVICE_FLAGS_INIT;
1274
1275 starget = scsi_target(sdev);
1276 sas_target_priv_data = starget->hostdata;
1277 sas_target_priv_data->num_luns++;
1278 sas_device_priv_data->sas_target = sas_target_priv_data;
1279 sdev->hostdata = sas_device_priv_data;
1280 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT))
1281 sdev->no_uld_attach = 1;
1282
1283 shost = dev_to_shost(&starget->dev);
1284 ioc = shost_priv(shost);
1285 if (starget->channel == RAID_CHANNEL) {
1286 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1287 raid_device = _scsih_raid_device_find_by_id(ioc,
1288 starget->id, starget->channel);
1289 if (raid_device)
1290 raid_device->sdev = sdev; /* raid is single lun */
1291 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1292 } else {
1293 /* set TLR bit for SSP devices */
1294 if (!(ioc->facts.IOCCapabilities &
1295 MPI2_IOCFACTS_CAPABILITY_TLR))
1296 goto out;
1297 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1298 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1299 sas_device_priv_data->sas_target->sas_address);
1300 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1301 if (sas_device && sas_device->device_info &
1302 MPI2_SAS_DEVICE_INFO_SSP_TARGET)
1303 sas_device_priv_data->flags |= MPT_DEVICE_TLR_ON;
1304 }
1305
1306 out:
1307 return 0;
1308}
1309
1310/**
d5d135b3 1311 * _scsih_slave_destroy - device destroy routine
635374e7
EM		 1312 * @sdev: scsi device struct
1313 *
1314 * Returns nothing.
1315 */
1316static void
d5d135b3 1317_scsih_slave_destroy(struct scsi_device *sdev)
635374e7
EM		 1318{
1319 struct MPT2SAS_TARGET *sas_target_priv_data;
1320 struct scsi_target *starget;
1321
1322 if (!sdev->hostdata)
1323 return;
1324
1325 starget = scsi_target(sdev);
1326 sas_target_priv_data = starget->hostdata;
1327 sas_target_priv_data->num_luns--;
1328 kfree(sdev->hostdata);
1329 sdev->hostdata = NULL;
1330}
1331
1332/**
d5d135b3 1333 * _scsih_display_sata_capabilities - sata capabilities
635374e7
EM		 1334 * @ioc: per adapter object
1335 * @sas_device: the sas_device object
1336 * @sdev: scsi device struct
1337 */
1338static void
d5d135b3 1339_scsih_display_sata_capabilities(struct MPT2SAS_ADAPTER *ioc,
635374e7
EM		 1340 struct _sas_device *sas_device, struct scsi_device *sdev)
1341{
1342 Mpi2ConfigReply_t mpi_reply;
1343 Mpi2SasDevicePage0_t sas_device_pg0;
1344 u32 ioc_status;
1345 u16 flags;
1346 u32 device_info;
1347
1348 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
1349 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, sas_device->handle))) {
1350 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1351 ioc->name, __FILE__, __LINE__, __func__);
1352 return;
1353 }
1354
1355 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1356 MPI2_IOCSTATUS_MASK;
1357 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
1358 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1359 ioc->name, __FILE__, __LINE__, __func__);
1360 return;
1361 }
1362
1363 flags = le16_to_cpu(sas_device_pg0.Flags);
1364 device_info = le16_to_cpu(sas_device_pg0.DeviceInfo);
1365
1366 sdev_printk(KERN_INFO, sdev,
1367 "atapi(%s), ncq(%s), asyn_notify(%s), smart(%s), fua(%s), "
1368 "sw_preserve(%s)\n",
1369 (device_info & MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? "y" : "n",
1370 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED) ? "y" : "n",
1371 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY) ? "y" :
1372 "n",
1373 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SMART_SUPPORTED) ? "y" : "n",
1374 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED) ? "y" : "n",
1375 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SW_PRESERVE) ? "y" : "n");
1376}
1377
1378/**
1379 * _scsih_get_volume_capabilities - volume capabilities
1380 * @ioc: per adapter object
1381 * @sas_device: the raid_device object
1382 */
1383static void
1384_scsih_get_volume_capabilities(struct MPT2SAS_ADAPTER *ioc,
1385 struct _raid_device *raid_device)
1386{
1387 Mpi2RaidVolPage0_t *vol_pg0;
1388 Mpi2RaidPhysDiskPage0_t pd_pg0;
1389 Mpi2SasDevicePage0_t sas_device_pg0;
1390 Mpi2ConfigReply_t mpi_reply;
1391 u16 sz;
1392 u8 num_pds;
1393
1394 if ((mpt2sas_config_get_number_pds(ioc, raid_device->handle,
1395 &num_pds)) || !num_pds) {
1396 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1397 ioc->name, __FILE__, __LINE__, __func__);
1398 return;
1399 }
1400
1401 raid_device->num_pds = num_pds;
1402 sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
1403 sizeof(Mpi2RaidVol0PhysDisk_t));
1404 vol_pg0 = kzalloc(sz, GFP_KERNEL);
1405 if (!vol_pg0) {
1406 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1407 ioc->name, __FILE__, __LINE__, __func__);
1408 return;
1409 }
1410
1411 if ((mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
1412 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
1413 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1414 ioc->name, __FILE__, __LINE__, __func__);
1415 kfree(vol_pg0);
1416 return;
1417 }
1418
1419 raid_device->volume_type = vol_pg0->VolumeType;
1420
1421 /* figure out what the underlying devices are by
1422 * obtaining the device_info bits for the 1st device
1423 */
1424 if (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
1425 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
1426 vol_pg0->PhysDisk[0].PhysDiskNum))) {
1427 if (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
1428 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
1429 le16_to_cpu(pd_pg0.DevHandle)))) {
1430 raid_device->device_info =
1431 le32_to_cpu(sas_device_pg0.DeviceInfo);
1432 }
1433 }
1434
1435 kfree(vol_pg0);
1436}
1437
1438/**
d5d135b3 1439 * _scsih_slave_configure - device configure routine.
635374e7
EM		 1440 * @sdev: scsi device struct
1441 *
1442 * Returns 0 if ok. Any other return is assumed to be an error and
1443 * the device is ignored.
1444 */
1445static int
d5d135b3 1446_scsih_slave_configure(struct scsi_device *sdev)
635374e7
EM		 1447{
1448 struct Scsi_Host *shost = sdev->host;
1449 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1450 struct MPT2SAS_DEVICE *sas_device_priv_data;
1451 struct MPT2SAS_TARGET *sas_target_priv_data;
1452 struct _sas_device *sas_device;
1453 struct _raid_device *raid_device;
1454 unsigned long flags;
1455 int qdepth;
1456 u8 ssp_target = 0;
1457 char *ds = "";
1458 char *r_level = "";
1459
1460 qdepth = 1;
1461 sas_device_priv_data = sdev->hostdata;
1462 sas_device_priv_data->configured_lun = 1;
1463 sas_device_priv_data->flags &= ~MPT_DEVICE_FLAGS_INIT;
1464 sas_target_priv_data = sas_device_priv_data->sas_target;
1465
1466 /* raid volume handling */
1467 if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME) {
1468
1469 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1470 raid_device = _scsih_raid_device_find_by_handle(ioc,
1471 sas_target_priv_data->handle);
1472 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1473 if (!raid_device) {
1474 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1475 ioc->name, __FILE__, __LINE__, __func__);
1476 return 0;
1477 }
1478
1479 _scsih_get_volume_capabilities(ioc, raid_device);
1480
1481 /* RAID Queue Depth Support
1482 * IS volume = underlying qdepth of drive type, either
1483 * MPT2SAS_SAS_QUEUE_DEPTH or MPT2SAS_SATA_QUEUE_DEPTH
1484 * IM/IME/R10 = 128 (MPT2SAS_RAID_QUEUE_DEPTH)
1485 */
1486 if (raid_device->device_info &
1487 MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
1488 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
1489 ds = "SSP";
1490 } else {
1491 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
1492 if (raid_device->device_info &
1493 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1494 ds = "SATA";
1495 else
1496 ds = "STP";
1497 }
1498
1499 switch (raid_device->volume_type) {
1500 case MPI2_RAID_VOL_TYPE_RAID0:
1501 r_level = "RAID0";
1502 break;
1503 case MPI2_RAID_VOL_TYPE_RAID1E:
1504 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1505 r_level = "RAID1E";
1506 break;
1507 case MPI2_RAID_VOL_TYPE_RAID1:
1508 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1509 r_level = "RAID1";
1510 break;
1511 case MPI2_RAID_VOL_TYPE_RAID10:
1512 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1513 r_level = "RAID10";
1514 break;
1515 case MPI2_RAID_VOL_TYPE_UNKNOWN:
1516 default:
1517 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1518 r_level = "RAIDX";
1519 break;
1520 }
1521
1522 sdev_printk(KERN_INFO, sdev, "%s: "
1523 "handle(0x%04x), wwid(0x%016llx), pd_count(%d), type(%s)\n",
1524 r_level, raid_device->handle,
1525 (unsigned long long)raid_device->wwid,
1526 raid_device->num_pds, ds);
d5d135b3 1527 _scsih_change_queue_depth(sdev, qdepth);
635374e7
EM		 1528 return 0;
1529 }
1530
1531 /* non-raid handling */
1532 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1533 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1534 sas_device_priv_data->sas_target->sas_address);
1535 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1536 if (sas_device) {
1537 if (sas_target_priv_data->flags &
1538 MPT_TARGET_FLAGS_RAID_COMPONENT) {
1539 mpt2sas_config_get_volume_handle(ioc,
1540 sas_device->handle, &sas_device->volume_handle);
1541 mpt2sas_config_get_volume_wwid(ioc,
1542 sas_device->volume_handle,
1543 &sas_device->volume_wwid);
1544 }
1545 if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
1546 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
1547 ssp_target = 1;
1548 ds = "SSP";
1549 } else {
1550 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
1551 if (sas_device->device_info &
1552 MPI2_SAS_DEVICE_INFO_STP_TARGET)
1553 ds = "STP";
1554 else if (sas_device->device_info &
1555 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1556 ds = "SATA";
1557 }
1558
1559 sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), "
1560 "sas_addr(0x%016llx), device_name(0x%016llx)\n",
1561 ds, sas_device->handle,
1562 (unsigned long long)sas_device->sas_address,
1563 (unsigned long long)sas_device->device_name);
1564 sdev_printk(KERN_INFO, sdev, "%s: "
1565 "enclosure_logical_id(0x%016llx), slot(%d)\n", ds,
1566 (unsigned long long) sas_device->enclosure_logical_id,
1567 sas_device->slot);
1568
1569 if (!ssp_target)
d5d135b3 1570 _scsih_display_sata_capabilities(ioc, sas_device, sdev);
635374e7
EM		 1571 }
1572
d5d135b3 1573 _scsih_change_queue_depth(sdev, qdepth);
635374e7
EM		 1574
1575 if (ssp_target)
1576 sas_read_port_mode_page(sdev);
1577 return 0;
1578}
1579
1580/**
d5d135b3 1581 * _scsih_bios_param - fetch head, sector, cylinder info for a disk
635374e7
EM		 1582 * @sdev: scsi device struct
1583 * @bdev: pointer to block device context
1584 * @capacity: device size (in 512 byte sectors)
1585 * @params: three element array to place output:
1586 * params[0] number of heads (max 255)
1587 * params[1] number of sectors (max 63)
1588 * params[2] number of cylinders
1589 *
1590 * Return nothing.
1591 */
1592static int
d5d135b3 1593_scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev,
635374e7
EM		 1594 sector_t capacity, int params[])
1595{
1596 int heads;
1597 int sectors;
1598 sector_t cylinders;
1599 ulong dummy;
1600
1601 heads = 64;
1602 sectors = 32;
1603
1604 dummy = heads * sectors;
1605 cylinders = capacity;
1606 sector_div(cylinders, dummy);
1607
1608 /*
1609 * Handle extended translation size for logical drives
1610 * > 1Gb
1611 */
1612 if ((ulong)capacity >= 0x200000) {
1613 heads = 255;
1614 sectors = 63;
1615 dummy = heads * sectors;
1616 cylinders = capacity;
1617 sector_div(cylinders, dummy);
1618 }
1619
1620 /* return result */
1621 params[0] = heads;
1622 params[1] = sectors;
1623 params[2] = cylinders;
1624
1625 return 0;
1626}
1627
1628/**
1629 * _scsih_response_code - translation of device response code
1630 * @ioc: per adapter object
1631 * @response_code: response code returned by the device
1632 *
1633 * Return nothing.
1634 */
1635static void
1636_scsih_response_code(struct MPT2SAS_ADAPTER *ioc, u8 response_code)
1637{
1638 char *desc;
1639
1640 switch (response_code) {
1641 case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE:
1642 desc = "task management request completed";
1643 break;
1644 case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME:
1645 desc = "invalid frame";
1646 break;
1647 case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
1648 desc = "task management request not supported";
1649 break;
1650 case MPI2_SCSITASKMGMT_RSP_TM_FAILED:
1651 desc = "task management request failed";
1652 break;
1653 case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED:
1654 desc = "task management request succeeded";
1655 break;
1656 case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN:
1657 desc = "invalid lun";
1658 break;
1659 case 0xA:
1660 desc = "overlapped tag attempted";
1661 break;
1662 case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
1663 desc = "task queued, however not sent to target";
1664 break;
1665 default:
1666 desc = "unknown";
1667 break;
1668 }
1669 printk(MPT2SAS_WARN_FMT "response_code(0x%01x): %s\n",
1670 ioc->name, response_code, desc);
1671}
1672
1673/**
d5d135b3 1674 * _scsih_tm_done - tm completion routine
635374e7
EM		 1675 * @ioc: per adapter object
1676 * @smid: system request message index
1677 * @VF_ID: virtual function id
1678 * @reply: reply message frame(lower 32bit addr)
1679 * Context: none.
1680 *
1681 * The callback handler when using scsih_issue_tm.
1682 *
1683 * Return nothing.
1684 */
1685static void
d5d135b3 1686_scsih_tm_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply)
635374e7
EM		 1687{
1688 MPI2DefaultReply_t *mpi_reply;
1689
1690 if (ioc->tm_cmds.status == MPT2_CMD_NOT_USED)
1691 return;
1692 if (ioc->tm_cmds.smid != smid)
1693 return;
1694 ioc->tm_cmds.status |= MPT2_CMD_COMPLETE;
1695 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
1696 if (mpi_reply) {
1697 memcpy(ioc->tm_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
1698 ioc->tm_cmds.status |= MPT2_CMD_REPLY_VALID;
1699 }
1700 ioc->tm_cmds.status &= ~MPT2_CMD_PENDING;
1701 complete(&ioc->tm_cmds.done);
1702}
1703
1704/**
1705 * mpt2sas_scsih_set_tm_flag - set per target tm_busy
1706 * @ioc: per adapter object
1707 * @handle: device handle
1708 *
1709 * During taskmangement request, we need to freeze the device queue.
1710 */
1711void
1712mpt2sas_scsih_set_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
1713{
1714 struct MPT2SAS_DEVICE *sas_device_priv_data;
1715 struct scsi_device *sdev;
1716 u8 skip = 0;
1717
1718 shost_for_each_device(sdev, ioc->shost) {
1719 if (skip)
1720 continue;
1721 sas_device_priv_data = sdev->hostdata;
1722 if (!sas_device_priv_data)
1723 continue;
1724 if (sas_device_priv_data->sas_target->handle == handle) {
1725 sas_device_priv_data->sas_target->tm_busy = 1;
1726 skip = 1;
1727 ioc->ignore_loginfos = 1;
1728 }
1729 }
1730}
1731
1732/**
1733 * mpt2sas_scsih_clear_tm_flag - clear per target tm_busy
1734 * @ioc: per adapter object
1735 * @handle: device handle
1736 *
1737 * During taskmangement request, we need to freeze the device queue.
1738 */
1739void
1740mpt2sas_scsih_clear_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
1741{
1742 struct MPT2SAS_DEVICE *sas_device_priv_data;
1743 struct scsi_device *sdev;
1744 u8 skip = 0;
1745
1746 shost_for_each_device(sdev, ioc->shost) {
1747 if (skip)
1748 continue;
1749 sas_device_priv_data = sdev->hostdata;
1750 if (!sas_device_priv_data)
1751 continue;
1752 if (sas_device_priv_data->sas_target->handle == handle) {
1753 sas_device_priv_data->sas_target->tm_busy = 0;
1754 skip = 1;
1755 ioc->ignore_loginfos = 0;
1756 }
1757 }
1758}
1759
1760/**
1761 * mpt2sas_scsih_issue_tm - main routine for sending tm requests
1762 * @ioc: per adapter struct
1763 * @device_handle: device handle
1764 * @lun: lun number
1765 * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
1766 * @smid_task: smid assigned to the task
1767 * @timeout: timeout in seconds
1768 * Context: The calling function needs to acquire the tm_cmds.mutex
1769 *
1770 * A generic API for sending task management requests to firmware.
1771 *
1772 * The ioc->tm_cmds.status flag should be MPT2_CMD_NOT_USED before calling
1773 * this API.
1774 *
1775 * The callback index is set inside `ioc->tm_cb_idx`.
1776 *
1777 * Return nothing.
1778 */
1779void
1780mpt2sas_scsih_issue_tm(struct MPT2SAS_ADAPTER *ioc, u16 handle, uint lun,
1781 u8 type, u16 smid_task, ulong timeout)
1782{
1783 Mpi2SCSITaskManagementRequest_t *mpi_request;
1784 Mpi2SCSITaskManagementReply_t *mpi_reply;
1785 u16 smid = 0;
1786 u32 ioc_state;
1787 unsigned long timeleft;
1788 u8 VF_ID = 0;
1789 unsigned long flags;
1790
1791 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
1792 if (ioc->tm_cmds.status != MPT2_CMD_NOT_USED ||
1793 ioc->shost_recovery) {
1794 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
1795 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
1796 __func__, ioc->name);
1797 return;
1798 }
1799 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
1800
1801 ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
1802 if (ioc_state & MPI2_DOORBELL_USED) {
1803 dhsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "unexpected doorbell "
1804 "active!\n", ioc->name));
1805 goto issue_host_reset;
1806 }
1807
1808 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
1809 mpt2sas_base_fault_info(ioc, ioc_state &
1810 MPI2_DOORBELL_DATA_MASK);
1811 goto issue_host_reset;
1812 }
1813
1814 smid = mpt2sas_base_get_smid(ioc, ioc->tm_cb_idx);
1815 if (!smid) {
1816 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
1817 ioc->name, __func__);
1818 return;
1819 }
1820
1821 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "sending tm: handle(0x%04x),"
1822 " task_type(0x%02x), smid(%d)\n", ioc->name, handle, type, smid));
1823 ioc->tm_cmds.status = MPT2_CMD_PENDING;
1824 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
1825 ioc->tm_cmds.smid = smid;
1826 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
1827 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
1828 mpi_request->DevHandle = cpu_to_le16(handle);
1829 mpi_request->TaskType = type;
1830 mpi_request->TaskMID = cpu_to_le16(smid_task);
1831 int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN);
1832 mpt2sas_scsih_set_tm_flag(ioc, handle);
1833 mpt2sas_base_put_smid_hi_priority(ioc, smid, VF_ID);
1834 timeleft = wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
1835 mpt2sas_scsih_clear_tm_flag(ioc, handle);
1836 if (!(ioc->tm_cmds.status & MPT2_CMD_COMPLETE)) {
1837 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
1838 ioc->name, __func__);
1839 _debug_dump_mf(mpi_request,
1840 sizeof(Mpi2SCSITaskManagementRequest_t)/4);
1841 if (!(ioc->tm_cmds.status & MPT2_CMD_RESET))
1842 goto issue_host_reset;
1843 }
1844
1845 if (ioc->tm_cmds.status & MPT2_CMD_REPLY_VALID) {
1846 mpi_reply = ioc->tm_cmds.reply;
1847 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "complete tm: "
1848 "ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n",
1849 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
1850 le32_to_cpu(mpi_reply->IOCLogInfo),
1851 le32_to_cpu(mpi_reply->TerminationCount)));
1852 if (ioc->logging_level & MPT_DEBUG_TM)
1853 _scsih_response_code(ioc, mpi_reply->ResponseCode);
1854 }
1855 return;
1856 issue_host_reset:
1857 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, FORCE_BIG_HAMMER);
1858}
1859
1860/**
d5d135b3 1861 * _scsih_abort - eh threads main abort routine
635374e7
EM		 1862 * @sdev: scsi device struct
1863 *
1864 * Returns SUCCESS if command aborted else FAILED
1865 */
1866static int
d5d135b3 1867_scsih_abort(struct scsi_cmnd *scmd)
635374e7
EM		 1868{
1869 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
1870 struct MPT2SAS_DEVICE *sas_device_priv_data;
1871 u16 smid;
1872 u16 handle;
1873 int r;
1874 struct scsi_cmnd *scmd_lookup;
1875
1876 printk(MPT2SAS_INFO_FMT "attempting task abort! scmd(%p)\n",
1877 ioc->name, scmd);
1878 scsi_print_command(scmd);
1879
1880 sas_device_priv_data = scmd->device->hostdata;
1881 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
1882 printk(MPT2SAS_INFO_FMT "device been deleted! scmd(%p)\n",
1883 ioc->name, scmd);
1884 scmd->result = DID_NO_CONNECT << 16;
1885 scmd->scsi_done(scmd);
1886 r = SUCCESS;
1887 goto out;
1888 }
1889
1890 /* search for the command */
1891 smid = _scsih_scsi_lookup_find_by_scmd(ioc, scmd);
1892 if (!smid) {
1893 scmd->result = DID_RESET << 16;
1894 r = SUCCESS;
1895 goto out;
1896 }
1897
1898 /* for hidden raid components and volumes this is not supported */
1899 if (sas_device_priv_data->sas_target->flags &
1900 MPT_TARGET_FLAGS_RAID_COMPONENT ||
1901 sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_VOLUME) {
1902 scmd->result = DID_RESET << 16;
1903 r = FAILED;
1904 goto out;
1905 }
1906
1907 mutex_lock(&ioc->tm_cmds.mutex);
1908 handle = sas_device_priv_data->sas_target->handle;
1909 mpt2sas_scsih_issue_tm(ioc, handle, sas_device_priv_data->lun,
1910 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30);
1911
1912 /* sanity check - see whether command actually completed */
1913 scmd_lookup = _scsih_scsi_lookup_get(ioc, smid);
1914 if (scmd_lookup && (scmd_lookup->serial_number == scmd->serial_number))
1915 r = FAILED;
1916 else
1917 r = SUCCESS;
1918 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
1919 mutex_unlock(&ioc->tm_cmds.mutex);
1920
1921 out:
1922 printk(MPT2SAS_INFO_FMT "task abort: %s scmd(%p)\n",
1923 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
1924 return r;
1925}
1926
635374e7 1927/**
d5d135b3 1928 * _scsih_dev_reset - eh threads main device reset routine
635374e7
EM		 1929 * @sdev: scsi device struct
1930 *
1931 * Returns SUCCESS if command aborted else FAILED
1932 */
1933static int
d5d135b3 1934_scsih_dev_reset(struct scsi_cmnd *scmd)
635374e7
EM		 1935{
1936 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
1937 struct MPT2SAS_DEVICE *sas_device_priv_data;
1938 struct _sas_device *sas_device;
1939 unsigned long flags;
1940 u16 handle;
1941 int r;
1942
993e0da7 1943 printk(MPT2SAS_INFO_FMT "attempting device reset! scmd(%p)\n",
635374e7
EM		 1944 ioc->name, scmd);
1945 scsi_print_command(scmd);
1946
1947 sas_device_priv_data = scmd->device->hostdata;
1948 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
1949 printk(MPT2SAS_INFO_FMT "device been deleted! scmd(%p)\n",
1950 ioc->name, scmd);
1951 scmd->result = DID_NO_CONNECT << 16;
1952 scmd->scsi_done(scmd);
1953 r = SUCCESS;
1954 goto out;
1955 }
1956
1957 /* for hidden raid components obtain the volume_handle */
1958 handle = 0;
1959 if (sas_device_priv_data->sas_target->flags &
1960 MPT_TARGET_FLAGS_RAID_COMPONENT) {
1961 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1962 sas_device = _scsih_sas_device_find_by_handle(ioc,
1963 sas_device_priv_data->sas_target->handle);
1964 if (sas_device)
1965 handle = sas_device->volume_handle;
1966 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1967 } else
1968 handle = sas_device_priv_data->sas_target->handle;
1969
1970 if (!handle) {
1971 scmd->result = DID_RESET << 16;
1972 r = FAILED;
1973 goto out;
1974 }
1975
993e0da7
EM		 1976 mutex_lock(&ioc->tm_cmds.mutex);
1977 mpt2sas_scsih_issue_tm(ioc, handle, 0,
1978 MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, scmd->device->lun,
1979 30);
1980
1981 /*
1982 * sanity check see whether all commands to this device been
1983 * completed
1984 */
1985 if (_scsih_scsi_lookup_find_by_lun(ioc, scmd->device->id,
1986 scmd->device->lun, scmd->device->channel))
1987 r = FAILED;
1988 else
1989 r = SUCCESS;
1990 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
1991 mutex_unlock(&ioc->tm_cmds.mutex);
1992
1993 out:
1994 printk(MPT2SAS_INFO_FMT "device reset: %s scmd(%p)\n",
1995 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
1996 return r;
1997}
1998
1999/**
d5d135b3 2000 * _scsih_target_reset - eh threads main target reset routine
993e0da7
EM		 2001 * @sdev: scsi device struct
2002 *
2003 * Returns SUCCESS if command aborted else FAILED
2004 */
2005static int
d5d135b3 2006_scsih_target_reset(struct scsi_cmnd *scmd)
993e0da7
EM		 2007{
2008 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2009 struct MPT2SAS_DEVICE *sas_device_priv_data;
2010 struct _sas_device *sas_device;
2011 unsigned long flags;
2012 u16 handle;
2013 int r;
2014
2015 printk(MPT2SAS_INFO_FMT "attempting target reset! scmd(%p)\n",
2016 ioc->name, scmd);
2017 scsi_print_command(scmd);
2018
2019 sas_device_priv_data = scmd->device->hostdata;
2020 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2021 printk(MPT2SAS_INFO_FMT "target been deleted! scmd(%p)\n",
2022 ioc->name, scmd);
2023 scmd->result = DID_NO_CONNECT << 16;
2024 scmd->scsi_done(scmd);
2025 r = SUCCESS;
2026 goto out;
2027 }
2028
2029 /* for hidden raid components obtain the volume_handle */
2030 handle = 0;
2031 if (sas_device_priv_data->sas_target->flags &
2032 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2033 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2034 sas_device = _scsih_sas_device_find_by_handle(ioc,
2035 sas_device_priv_data->sas_target->handle);
2036 if (sas_device)
2037 handle = sas_device->volume_handle;
2038 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2039 } else
2040 handle = sas_device_priv_data->sas_target->handle;
2041
2042 if (!handle) {
2043 scmd->result = DID_RESET << 16;
2044 r = FAILED;
2045 goto out;
2046 }
2047
635374e7
EM		 2048 mutex_lock(&ioc->tm_cmds.mutex);
2049 mpt2sas_scsih_issue_tm(ioc, handle, 0,
2050 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 30);
2051
2052 /*
2053 * sanity check see whether all commands to this target been
2054 * completed
2055 */
2056 if (_scsih_scsi_lookup_find_by_target(ioc, scmd->device->id,
2057 scmd->device->channel))
2058 r = FAILED;
2059 else
2060 r = SUCCESS;
2061 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
2062 mutex_unlock(&ioc->tm_cmds.mutex);
2063
2064 out:
2065 printk(MPT2SAS_INFO_FMT "target reset: %s scmd(%p)\n",
2066 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2067 return r;
2068}
2069
2070/**
d5d135b3 2071 * _scsih_abort - eh threads main host reset routine
635374e7
EM		 2072 * @sdev: scsi device struct
2073 *
2074 * Returns SUCCESS if command aborted else FAILED
2075 */
2076static int
d5d135b3 2077_scsih_host_reset(struct scsi_cmnd *scmd)
635374e7
EM		 2078{
2079 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2080 int r, retval;
2081
2082 printk(MPT2SAS_INFO_FMT "attempting host reset! scmd(%p)\n",
2083 ioc->name, scmd);
2084 scsi_print_command(scmd);
2085
2086 retval = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2087 FORCE_BIG_HAMMER);
2088 r = (retval < 0) ? FAILED : SUCCESS;
2089 printk(MPT2SAS_INFO_FMT "host reset: %s scmd(%p)\n",
2090 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2091
2092 return r;
2093}
2094
2095/**
2096 * _scsih_fw_event_add - insert and queue up fw_event
2097 * @ioc: per adapter object
2098 * @fw_event: object describing the event
2099 * Context: This function will acquire ioc->fw_event_lock.
2100 *
2101 * This adds the firmware event object into link list, then queues it up to
2102 * be processed from user context.
2103 *
2104 * Return nothing.
2105 */
2106static void
2107_scsih_fw_event_add(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
2108{
2109 unsigned long flags;
2110
2111 if (ioc->firmware_event_thread == NULL)
2112 return;
2113
2114 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2115 list_add_tail(&fw_event->list, &ioc->fw_event_list);
6f92a7a0
EM		 2116 INIT_WORK(&fw_event->work, _firmware_event_work);
2117 queue_work(ioc->firmware_event_thread, &fw_event->work);
635374e7
EM		 2118 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2119}
2120
2121/**
2122 * _scsih_fw_event_free - delete fw_event
2123 * @ioc: per adapter object
2124 * @fw_event: object describing the event
2125 * Context: This function will acquire ioc->fw_event_lock.
2126 *
2127 * This removes firmware event object from link list, frees associated memory.
2128 *
2129 * Return nothing.
2130 */
2131static void
2132_scsih_fw_event_free(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
2133 *fw_event)
2134{
2135 unsigned long flags;
2136
2137 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2138 list_del(&fw_event->list);
2139 kfree(fw_event->event_data);
2140 kfree(fw_event);
2141 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2142}
2143
2144/**
2145 * _scsih_fw_event_add - requeue an event
2146 * @ioc: per adapter object
2147 * @fw_event: object describing the event
2148 * Context: This function will acquire ioc->fw_event_lock.
2149 *
2150 * Return nothing.
2151 */
2152static void
2153_scsih_fw_event_requeue(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
2154 *fw_event, unsigned long delay)
2155{
2156 unsigned long flags;
2157 if (ioc->firmware_event_thread == NULL)
2158 return;
2159
2160 spin_lock_irqsave(&ioc->fw_event_lock, flags);
6f92a7a0 2161 queue_work(ioc->firmware_event_thread, &fw_event->work);
635374e7
EM		 2162 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2163}
2164
2165/**
2166 * _scsih_fw_event_off - turn flag off preventing event handling
2167 * @ioc: per adapter object
2168 *
2169 * Used to prevent handling of firmware events during adapter reset
2170 * driver unload.
2171 *
2172 * Return nothing.
2173 */
2174static void
2175_scsih_fw_event_off(struct MPT2SAS_ADAPTER *ioc)
2176{
2177 unsigned long flags;
2178
2179 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2180 ioc->fw_events_off = 1;
2181 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2182
2183}
2184
2185/**
2186 * _scsih_fw_event_on - turn flag on allowing firmware event handling
2187 * @ioc: per adapter object
2188 *
2189 * Returns nothing.
2190 */
2191static void
2192_scsih_fw_event_on(struct MPT2SAS_ADAPTER *ioc)
2193{
2194 unsigned long flags;
2195
2196 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2197 ioc->fw_events_off = 0;
2198 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2199}
2200
2201/**
2202 * _scsih_ublock_io_device - set the device state to SDEV_RUNNING
2203 * @ioc: per adapter object
2204 * @handle: device handle
2205 *
2206 * During device pull we need to appropiately set the sdev state.
2207 */
2208static void
2209_scsih_ublock_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2210{
2211 struct MPT2SAS_DEVICE *sas_device_priv_data;
2212 struct scsi_device *sdev;
2213
2214 shost_for_each_device(sdev, ioc->shost) {
2215 sas_device_priv_data = sdev->hostdata;
2216 if (!sas_device_priv_data)
2217 continue;
2218 if (!sas_device_priv_data->block)
2219 continue;
2220 if (sas_device_priv_data->sas_target->handle == handle) {
2221 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2222 MPT2SAS_INFO_FMT "SDEV_RUNNING: "
2223 "handle(0x%04x)\n", ioc->name, handle));
2224 sas_device_priv_data->block = 0;
2225 scsi_device_set_state(sdev, SDEV_RUNNING);
2226 }
2227 }
2228}
2229
2230/**
2231 * _scsih_block_io_device - set the device state to SDEV_BLOCK
2232 * @ioc: per adapter object
2233 * @handle: device handle
2234 *
2235 * During device pull we need to appropiately set the sdev state.
2236 */
2237static void
2238_scsih_block_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2239{
2240 struct MPT2SAS_DEVICE *sas_device_priv_data;
2241 struct scsi_device *sdev;
2242
2243 shost_for_each_device(sdev, ioc->shost) {
2244 sas_device_priv_data = sdev->hostdata;
2245 if (!sas_device_priv_data)
2246 continue;
2247 if (sas_device_priv_data->block)
2248 continue;
2249 if (sas_device_priv_data->sas_target->handle == handle) {
2250 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2251 MPT2SAS_INFO_FMT "SDEV_BLOCK: "
2252 "handle(0x%04x)\n", ioc->name, handle));
2253 sas_device_priv_data->block = 1;
2254 scsi_device_set_state(sdev, SDEV_BLOCK);
2255 }
2256 }
2257}
2258
2259/**
2260 * _scsih_block_io_to_children_attached_to_ex
2261 * @ioc: per adapter object
2262 * @sas_expander: the sas_device object
2263 *
2264 * This routine set sdev state to SDEV_BLOCK for all devices
2265 * attached to this expander. This function called when expander is
2266 * pulled.
2267 */
2268static void
2269_scsih_block_io_to_children_attached_to_ex(struct MPT2SAS_ADAPTER *ioc,
2270 struct _sas_node *sas_expander)
2271{
2272 struct _sas_port *mpt2sas_port;
2273 struct _sas_device *sas_device;
2274 struct _sas_node *expander_sibling;
2275 unsigned long flags;
2276
2277 if (!sas_expander)
2278 return;
2279
2280 list_for_each_entry(mpt2sas_port,
2281 &sas_expander->sas_port_list, port_list) {
2282 if (mpt2sas_port->remote_identify.device_type ==
2283 SAS_END_DEVICE) {
2284 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2285 sas_device =
2286 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
2287 mpt2sas_port->remote_identify.sas_address);
2288 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2289 if (!sas_device)
2290 continue;
2291 _scsih_block_io_device(ioc, sas_device->handle);
2292 }
2293 }
2294
2295 list_for_each_entry(mpt2sas_port,
2296 &sas_expander->sas_port_list, port_list) {
2297
2298 if (mpt2sas_port->remote_identify.device_type ==
2299 MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER ||
2300 mpt2sas_port->remote_identify.device_type ==
2301 MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) {
2302
2303 spin_lock_irqsave(&ioc->sas_node_lock, flags);
2304 expander_sibling =
2305 mpt2sas_scsih_expander_find_by_sas_address(
2306 ioc, mpt2sas_port->remote_identify.sas_address);
2307 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
2308 _scsih_block_io_to_children_attached_to_ex(ioc,
2309 expander_sibling);
2310 }
2311 }
2312}
2313
2314/**
2315 * _scsih_block_io_to_children_attached_directly
2316 * @ioc: per adapter object
2317 * @event_data: topology change event data
2318 *
2319 * This routine set sdev state to SDEV_BLOCK for all devices
2320 * direct attached during device pull.
2321 */
2322static void
2323_scsih_block_io_to_children_attached_directly(struct MPT2SAS_ADAPTER *ioc,
2324 Mpi2EventDataSasTopologyChangeList_t *event_data)
2325{
2326 int i;
2327 u16 handle;
2328 u16 reason_code;
2329 u8 phy_number;
2330
2331 for (i = 0; i < event_data->NumEntries; i++) {
2332 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
2333 if (!handle)
2334 continue;
2335 phy_number = event_data->StartPhyNum + i;
2336 reason_code = event_data->PHY[i].PhyStatus &
2337 MPI2_EVENT_SAS_TOPO_RC_MASK;
2338 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING)
2339 _scsih_block_io_device(ioc, handle);
2340 }
2341}
2342
2343/**
2344 * _scsih_check_topo_delete_events - sanity check on topo events
2345 * @ioc: per adapter object
2346 * @event_data: the event data payload
2347 *
2348 * This routine added to better handle cable breaker.
2349 *
2350 * This handles the case where driver recieves multiple expander
2351 * add and delete events in a single shot. When there is a delete event
2352 * the routine will void any pending add events waiting in the event queue.
2353 *
2354 * Return nothing.
2355 */
2356static void
2357_scsih_check_topo_delete_events(struct MPT2SAS_ADAPTER *ioc,
2358 Mpi2EventDataSasTopologyChangeList_t *event_data)
2359{
2360 struct fw_event_work *fw_event;
2361 Mpi2EventDataSasTopologyChangeList_t *local_event_data;
2362 u16 expander_handle;
2363 struct _sas_node *sas_expander;
2364 unsigned long flags;
2365
2366 expander_handle = le16_to_cpu(event_data->ExpanderDevHandle);
2367 if (expander_handle < ioc->sas_hba.num_phys) {
2368 _scsih_block_io_to_children_attached_directly(ioc, event_data);
2369 return;
2370 }
2371
2372 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING
2373 || event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING) {
2374 spin_lock_irqsave(&ioc->sas_node_lock, flags);
2375 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
2376 expander_handle);
2377 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
2378 _scsih_block_io_to_children_attached_to_ex(ioc, sas_expander);
2379 } else if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_RESPONDING)
2380 _scsih_block_io_to_children_attached_directly(ioc, event_data);
2381
2382 if (event_data->ExpStatus != MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
2383 return;
2384
2385 /* mark ignore flag for pending events */
2386 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2387 list_for_each_entry(fw_event, &ioc->fw_event_list, list) {
2388 if (fw_event->event != MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
2389 fw_event->ignore)
2390 continue;
2391 local_event_data = fw_event->event_data;
2392 if (local_event_data->ExpStatus ==
2393 MPI2_EVENT_SAS_TOPO_ES_ADDED ||
2394 local_event_data->ExpStatus ==
2395 MPI2_EVENT_SAS_TOPO_ES_RESPONDING) {
2396 if (le16_to_cpu(local_event_data->ExpanderDevHandle) ==
2397 expander_handle) {
2398 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT
2399 "setting ignoring flag\n", ioc->name));
2400 fw_event->ignore = 1;
2401 }
2402 }
2403 }
2404 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2405}
2406
2407/**
2408 * _scsih_queue_rescan - queue a topology rescan from user context
2409 * @ioc: per adapter object
2410 *
2411 * Return nothing.
2412 */
2413static void
2414_scsih_queue_rescan(struct MPT2SAS_ADAPTER *ioc)
2415{
2416 struct fw_event_work *fw_event;
2417
2418 if (ioc->wait_for_port_enable_to_complete)
2419 return;
2420 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
2421 if (!fw_event)
2422 return;
2423 fw_event->event = MPT2SAS_RESCAN_AFTER_HOST_RESET;
2424 fw_event->ioc = ioc;
2425 _scsih_fw_event_add(ioc, fw_event);
2426}
2427
2428/**
2429 * _scsih_flush_running_cmds - completing outstanding commands.
2430 * @ioc: per adapter object
2431 *
2432 * The flushing out of all pending scmd commands following host reset,
2433 * where all IO is dropped to the floor.
2434 *
2435 * Return nothing.
2436 */
2437static void
2438_scsih_flush_running_cmds(struct MPT2SAS_ADAPTER *ioc)
2439{
2440 struct scsi_cmnd *scmd;
2441 u16 smid;
2442 u16 count = 0;
2443
2444 for (smid = 1; smid <= ioc->request_depth; smid++) {
2445 scmd = _scsih_scsi_lookup_getclear(ioc, smid);
2446 if (!scmd)
2447 continue;
2448 count++;
2449 mpt2sas_base_free_smid(ioc, smid);
2450 scsi_dma_unmap(scmd);
2451 scmd->result = DID_RESET << 16;
2452 scmd->scsi_done(scmd);
2453 }
2454 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "completing %d cmds\n",
2455 ioc->name, count));
2456}
2457
2458/**
2459 * mpt2sas_scsih_reset_handler - reset callback handler (for scsih)
2460 * @ioc: per adapter object
2461 * @reset_phase: phase
2462 *
2463 * The handler for doing any required cleanup or initialization.
2464 *
2465 * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
2466 * MPT2_IOC_DONE_RESET
2467 *
2468 * Return nothing.
2469 */
2470void
2471mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
2472{
2473 switch (reset_phase) {
2474 case MPT2_IOC_PRE_RESET:
2475 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
2476 "MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
2477 _scsih_fw_event_off(ioc);
2478 break;
2479 case MPT2_IOC_AFTER_RESET:
2480 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
2481 "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
2482 if (ioc->tm_cmds.status & MPT2_CMD_PENDING) {
2483 ioc->tm_cmds.status |= MPT2_CMD_RESET;
2484 mpt2sas_base_free_smid(ioc, ioc->tm_cmds.smid);
2485 complete(&ioc->tm_cmds.done);
2486 }
2487 _scsih_fw_event_on(ioc);
2488 _scsih_flush_running_cmds(ioc);
2489 break;
2490 case MPT2_IOC_DONE_RESET:
2491 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
2492 "MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
2493 _scsih_queue_rescan(ioc);
2494 break;
2495 }
2496}
2497
3c621b3e
EM		 2498/**
2499 * _scsih_setup_eedp - setup MPI request for EEDP transfer
2500 * @scmd: pointer to scsi command object
2501 * @mpi_request: pointer to the SCSI_IO reqest message frame
2502 *
2503 * Supporting protection 1 and 3.
2504 *
2505 * Returns nothing
2506 */
2507static void
2508_scsih_setup_eedp(struct scsi_cmnd *scmd, Mpi2SCSIIORequest_t *mpi_request)
2509{
2510 u16 eedp_flags;
2511 unsigned char prot_op = scsi_get_prot_op(scmd);
2512 unsigned char prot_type = scsi_get_prot_type(scmd);
2513
2514 if (prot_type == SCSI_PROT_DIF_TYPE0 ||
2515 prot_type == SCSI_PROT_DIF_TYPE2 ||
2516 prot_op == SCSI_PROT_NORMAL)
2517 return;
2518
2519 if (prot_op == SCSI_PROT_READ_STRIP)
2520 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP;
2521 else if (prot_op == SCSI_PROT_WRITE_INSERT)
2522 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_INSERT_OP;
2523 else
2524 return;
2525
2526 mpi_request->EEDPBlockSize = scmd->device->sector_size;
2527
2528 switch (prot_type) {
2529 case SCSI_PROT_DIF_TYPE1:
2530
2531 /*
2532 * enable ref/guard checking
2533 * auto increment ref tag
2534 */
2535 mpi_request->EEDPFlags = eedp_flags |
2536 MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
2537 MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
2538 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
2539 mpi_request->CDB.EEDP32.PrimaryReferenceTag =
2540 cpu_to_be32(scsi_get_lba(scmd));
2541
2542 break;
2543
2544 case SCSI_PROT_DIF_TYPE3:
2545
2546 /*
2547 * enable guard checking
2548 */
2549 mpi_request->EEDPFlags = eedp_flags |
2550 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
2551
2552 break;
2553 }
2554}
2555
2556/**
2557 * _scsih_eedp_error_handling - return sense code for EEDP errors
2558 * @scmd: pointer to scsi command object
2559 * @ioc_status: ioc status
2560 *
2561 * Returns nothing
2562 */
2563static void
2564_scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status)
2565{
2566 u8 ascq;
2567 u8 sk;
2568 u8 host_byte;
2569
2570 switch (ioc_status) {
2571 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
2572 ascq = 0x01;
2573 break;
2574 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
2575 ascq = 0x02;
2576 break;
2577 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
2578 ascq = 0x03;
2579 break;
2580 default:
2581 ascq = 0x00;
2582 break;
2583 }
2584
2585 if (scmd->sc_data_direction == DMA_TO_DEVICE) {
2586 sk = ILLEGAL_REQUEST;
2587 host_byte = DID_ABORT;
2588 } else {
2589 sk = ABORTED_COMMAND;
2590 host_byte = DID_OK;
2591 }
2592
2593 scsi_build_sense_buffer(0, scmd->sense_buffer, sk, 0x10, ascq);
2594 scmd->result = DRIVER_SENSE << 24 | (host_byte << 16) |
2595 SAM_STAT_CHECK_CONDITION;
2596}
2597
635374e7 2598/**
d5d135b3 2599 * _scsih_qcmd - main scsi request entry point
635374e7
EM		 2600 * @scmd: pointer to scsi command object
2601 * @done: function pointer to be invoked on completion
2602 *
2603 * The callback index is set inside `ioc->scsi_io_cb_idx`.
2604 *
2605 * Returns 0 on success. If there's a failure, return either:
2606 * SCSI_MLQUEUE_DEVICE_BUSY if the device queue is full, or
2607 * SCSI_MLQUEUE_HOST_BUSY if the entire host queue is full
2608 */
2609static int
d5d135b3 2610_scsih_qcmd(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
635374e7
EM		 2611{
2612 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2613 struct MPT2SAS_DEVICE *sas_device_priv_data;
2614 struct MPT2SAS_TARGET *sas_target_priv_data;
2615 Mpi2SCSIIORequest_t *mpi_request;
2616 u32 mpi_control;
2617 u16 smid;
2618 unsigned long flags;
2619
2620 scmd->scsi_done = done;
2621 sas_device_priv_data = scmd->device->hostdata;
2622 if (!sas_device_priv_data) {
2623 scmd->result = DID_NO_CONNECT << 16;
2624 scmd->scsi_done(scmd);
2625 return 0;
2626 }
2627
2628 sas_target_priv_data = sas_device_priv_data->sas_target;
2629 if (!sas_target_priv_data || sas_target_priv_data->handle ==
2630 MPT2SAS_INVALID_DEVICE_HANDLE || sas_target_priv_data->deleted) {
2631 scmd->result = DID_NO_CONNECT << 16;
2632 scmd->scsi_done(scmd);
2633 return 0;
2634 }
2635
2636 /* see if we are busy with task managment stuff */
2637 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
2638 if (sas_target_priv_data->tm_busy ||
2639 ioc->shost_recovery || ioc->ioc_link_reset_in_progress) {
2640 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
2641 return SCSI_MLQUEUE_HOST_BUSY;
2642 }
2643 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
2644
2645 if (scmd->sc_data_direction == DMA_FROM_DEVICE)
2646 mpi_control = MPI2_SCSIIO_CONTROL_READ;
2647 else if (scmd->sc_data_direction == DMA_TO_DEVICE)
2648 mpi_control = MPI2_SCSIIO_CONTROL_WRITE;
2649 else
2650 mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER;
2651
2652 /* set tags */
2653 if (!(sas_device_priv_data->flags & MPT_DEVICE_FLAGS_INIT)) {
2654 if (scmd->device->tagged_supported) {
2655 if (scmd->device->ordered_tags)
2656 mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ;
2657 else
2658 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
2659 } else
2660/* MPI Revision I (UNIT = 0xA) - removed MPI2_SCSIIO_CONTROL_UNTAGGED */
2661/* mpi_control |= MPI2_SCSIIO_CONTROL_UNTAGGED;
2662 */
2663 mpi_control |= (0x500);
2664
2665 } else
2666 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
2667
2668 if ((sas_device_priv_data->flags & MPT_DEVICE_TLR_ON))
2669 mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
2670
2671 smid = mpt2sas_base_get_smid(ioc, ioc->scsi_io_cb_idx);
2672 if (!smid) {
2673 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
2674 ioc->name, __func__);
2675 goto out;
2676 }
2677 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
2678 memset(mpi_request, 0, sizeof(Mpi2SCSIIORequest_t));
3c621b3e 2679 _scsih_setup_eedp(scmd, mpi_request);
635374e7
EM		 2680 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
2681 if (sas_device_priv_data->sas_target->flags &
2682 MPT_TARGET_FLAGS_RAID_COMPONENT)
2683 mpi_request->Function = MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
2684 else
2685 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
2686 mpi_request->DevHandle =
2687 cpu_to_le16(sas_device_priv_data->sas_target->handle);
2688 mpi_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
2689 mpi_request->Control = cpu_to_le32(mpi_control);
2690 mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len);
2691 mpi_request->MsgFlags = MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR;
2692 mpi_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
2693 mpi_request->SenseBufferLowAddress =
2694 (u32)mpt2sas_base_get_sense_buffer_dma(ioc, smid);
2695 mpi_request->SGLOffset0 = offsetof(Mpi2SCSIIORequest_t, SGL) / 4;
2696 mpi_request->SGLFlags = cpu_to_le16(MPI2_SCSIIO_SGLFLAGS_TYPE_MPI +
2697 MPI2_SCSIIO_SGLFLAGS_SYSTEM_ADDR);
2698
2699 int_to_scsilun(sas_device_priv_data->lun, (struct scsi_lun *)
2700 mpi_request->LUN);
2701 memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
2702
2703 if (!mpi_request->DataLength) {
2704 mpt2sas_base_build_zero_len_sge(ioc, &mpi_request->SGL);
2705 } else {
2706 if (_scsih_build_scatter_gather(ioc, scmd, smid)) {
2707 mpt2sas_base_free_smid(ioc, smid);
2708 goto out;
2709 }
2710 }
2711
2712 _scsih_scsi_lookup_set(ioc, smid, scmd);
2713 mpt2sas_base_put_smid_scsi_io(ioc, smid, 0,
2714 sas_device_priv_data->sas_target->handle);
2715 return 0;
2716
2717 out:
2718 return SCSI_MLQUEUE_HOST_BUSY;
2719}
2720
2721/**
2722 * _scsih_normalize_sense - normalize descriptor and fixed format sense data
2723 * @sense_buffer: sense data returned by target
2724 * @data: normalized skey/asc/ascq
2725 *
2726 * Return nothing.
2727 */
2728static void
2729_scsih_normalize_sense(char *sense_buffer, struct sense_info *data)
2730{
2731 if ((sense_buffer[0] & 0x7F) >= 0x72) {
2732 /* descriptor format */
2733 data->skey = sense_buffer[1] & 0x0F;
2734 data->asc = sense_buffer[2];
2735 data->ascq = sense_buffer[3];
2736 } else {
2737 /* fixed format */
2738 data->skey = sense_buffer[2] & 0x0F;
2739 data->asc = sense_buffer[12];
2740 data->ascq = sense_buffer[13];
2741 }
2742}
2743
2744#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
2745/**
2746 * _scsih_scsi_ioc_info - translated non-succesfull SCSI_IO request
2747 * @ioc: per adapter object
2748 * @scmd: pointer to scsi command object
2749 * @mpi_reply: reply mf payload returned from firmware
2750 *
2751 * scsi_status - SCSI Status code returned from target device
2752 * scsi_state - state info associated with SCSI_IO determined by ioc
2753 * ioc_status - ioc supplied status info
2754 *
2755 * Return nothing.
2756 */
2757static void
2758_scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
2759 Mpi2SCSIIOReply_t *mpi_reply, u16 smid)
2760{
2761 u32 response_info;
2762 u8 *response_bytes;
2763 u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
2764 MPI2_IOCSTATUS_MASK;
2765 u8 scsi_state = mpi_reply->SCSIState;
2766 u8 scsi_status = mpi_reply->SCSIStatus;
2767 char *desc_ioc_state = NULL;
2768 char *desc_scsi_status = NULL;
2769 char *desc_scsi_state = ioc->tmp_string;
2770
2771 switch (ioc_status) {
2772 case MPI2_IOCSTATUS_SUCCESS:
2773 desc_ioc_state = "success";
2774 break;
2775 case MPI2_IOCSTATUS_INVALID_FUNCTION:
2776 desc_ioc_state = "invalid function";
2777 break;
2778 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
2779 desc_ioc_state = "scsi recovered error";
2780 break;
2781 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
2782 desc_ioc_state = "scsi invalid dev handle";
2783 break;
2784 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
2785 desc_ioc_state = "scsi device not there";
2786 break;
2787 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
2788 desc_ioc_state = "scsi data overrun";
2789 break;
2790 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
2791 desc_ioc_state = "scsi data underrun";
2792 break;
2793 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
2794 desc_ioc_state = "scsi io data error";
2795 break;
2796 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
2797 desc_ioc_state = "scsi protocol error";
2798 break;
2799 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
2800 desc_ioc_state = "scsi task terminated";
2801 break;
2802 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
2803 desc_ioc_state = "scsi residual mismatch";
2804 break;
2805 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
2806 desc_ioc_state = "scsi task mgmt failed";
2807 break;
2808 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
2809 desc_ioc_state = "scsi ioc terminated";
2810 break;
2811 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
2812 desc_ioc_state = "scsi ext terminated";
2813 break;
3c621b3e
EM		 2814 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
2815 desc_ioc_state = "eedp guard error";
2816 break;
2817 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
2818 desc_ioc_state = "eedp ref tag error";
2819 break;
2820 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
2821 desc_ioc_state = "eedp app tag error";
2822 break;
635374e7
EM		 2823 default:
2824 desc_ioc_state = "unknown";
2825 break;
2826 }
2827
2828 switch (scsi_status) {
2829 case MPI2_SCSI_STATUS_GOOD:
2830 desc_scsi_status = "good";
2831 break;
2832 case MPI2_SCSI_STATUS_CHECK_CONDITION:
2833 desc_scsi_status = "check condition";
2834 break;
2835 case MPI2_SCSI_STATUS_CONDITION_MET:
2836 desc_scsi_status = "condition met";
2837 break;
2838 case MPI2_SCSI_STATUS_BUSY:
2839 desc_scsi_status = "busy";
2840 break;
2841 case MPI2_SCSI_STATUS_INTERMEDIATE:
2842 desc_scsi_status = "intermediate";
2843 break;
2844 case MPI2_SCSI_STATUS_INTERMEDIATE_CONDMET:
2845 desc_scsi_status = "intermediate condmet";
2846 break;
2847 case MPI2_SCSI_STATUS_RESERVATION_CONFLICT:
2848 desc_scsi_status = "reservation conflict";
2849 break;
2850 case MPI2_SCSI_STATUS_COMMAND_TERMINATED:
2851 desc_scsi_status = "command terminated";
2852 break;
2853 case MPI2_SCSI_STATUS_TASK_SET_FULL:
2854 desc_scsi_status = "task set full";
2855 break;
2856 case MPI2_SCSI_STATUS_ACA_ACTIVE:
2857 desc_scsi_status = "aca active";
2858 break;
2859 case MPI2_SCSI_STATUS_TASK_ABORTED:
2860 desc_scsi_status = "task aborted";
2861 break;
2862 default:
2863 desc_scsi_status = "unknown";
2864 break;
2865 }
2866
2867 desc_scsi_state[0] = '\0';
2868 if (!scsi_state)
2869 desc_scsi_state = " ";
2870 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
2871 strcat(desc_scsi_state, "response info ");
2872 if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
2873 strcat(desc_scsi_state, "state terminated ");
2874 if (scsi_state & MPI2_SCSI_STATE_NO_SCSI_STATUS)
2875 strcat(desc_scsi_state, "no status ");
2876 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_FAILED)
2877 strcat(desc_scsi_state, "autosense failed ");
2878 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID)
2879 strcat(desc_scsi_state, "autosense valid ");
2880
2881 scsi_print_command(scmd);
2882 printk(MPT2SAS_WARN_FMT "\tdev handle(0x%04x), "
2883 "ioc_status(%s)(0x%04x), smid(%d)\n", ioc->name,
2884 le16_to_cpu(mpi_reply->DevHandle), desc_ioc_state,
2885 ioc_status, smid);
2886 printk(MPT2SAS_WARN_FMT "\trequest_len(%d), underflow(%d), "
2887 "resid(%d)\n", ioc->name, scsi_bufflen(scmd), scmd->underflow,
2888 scsi_get_resid(scmd));
2889 printk(MPT2SAS_WARN_FMT "\ttag(%d), transfer_count(%d), "
2890 "sc->result(0x%08x)\n", ioc->name, le16_to_cpu(mpi_reply->TaskTag),
2891 le32_to_cpu(mpi_reply->TransferCount), scmd->result);
2892 printk(MPT2SAS_WARN_FMT "\tscsi_status(%s)(0x%02x), "
2893 "scsi_state(%s)(0x%02x)\n", ioc->name, desc_scsi_status,
2894 scsi_status, desc_scsi_state, scsi_state);
2895
2896 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
2897 struct sense_info data;
2898 _scsih_normalize_sense(scmd->sense_buffer, &data);
2899 printk(MPT2SAS_WARN_FMT "\t[sense_key,asc,ascq]: "
2900 "[0x%02x,0x%02x,0x%02x]\n", ioc->name, data.skey,
2901 data.asc, data.ascq);
2902 }
2903
2904 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
2905 response_info = le32_to_cpu(mpi_reply->ResponseInfo);
2906 response_bytes = (u8 *)&response_info;
2907 _scsih_response_code(ioc, response_bytes[3]);
2908 }
2909}
2910#endif
2911
2912/**
2913 * _scsih_smart_predicted_fault - illuminate Fault LED
2914 * @ioc: per adapter object
2915 * @handle: device handle
2916 *
2917 * Return nothing.
2918 */
2919static void
2920_scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2921{
2922 Mpi2SepReply_t mpi_reply;
2923 Mpi2SepRequest_t mpi_request;
2924 struct scsi_target *starget;
2925 struct MPT2SAS_TARGET *sas_target_priv_data;
2926 Mpi2EventNotificationReply_t *event_reply;
2927 Mpi2EventDataSasDeviceStatusChange_t *event_data;
2928 struct _sas_device *sas_device;
2929 ssize_t sz;
2930 unsigned long flags;
2931
2932 /* only handle non-raid devices */
2933 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2934 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
2935 if (!sas_device) {
2936 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2937 return;
2938 }
2939 starget = sas_device->starget;
2940 sas_target_priv_data = starget->hostdata;
2941
2942 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) ||
2943 ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) {
2944 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2945 return;
2946 }
2947 starget_printk(KERN_WARNING, starget, "predicted fault\n");
2948 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2949
2950 if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM) {
2951 memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t));
2952 mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
2953 mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS;
2954 mpi_request.SlotStatus =
2955 MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT;
2956 mpi_request.DevHandle = cpu_to_le16(handle);
2957 mpi_request.Flags = MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS;
2958 if ((mpt2sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
2959 &mpi_request)) != 0) {
2960 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
2961 ioc->name, __FILE__, __LINE__, __func__);
2962 return;
2963 }
2964
2965 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) {
2966 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
2967 "enclosure_processor: ioc_status (0x%04x), "
2968 "loginfo(0x%08x)\n", ioc->name,
2969 le16_to_cpu(mpi_reply.IOCStatus),
2970 le32_to_cpu(mpi_reply.IOCLogInfo)));
2971 return;
2972 }
2973 }
2974
2975 /* insert into event log */
2976 sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
2977 sizeof(Mpi2EventDataSasDeviceStatusChange_t);
2978 event_reply = kzalloc(sz, GFP_KERNEL);
2979 if (!event_reply) {
2980 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
2981 ioc->name, __FILE__, __LINE__, __func__);
2982 return;
2983 }
2984
2985 event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
2986 event_reply->Event =
2987 cpu_to_le16(MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
2988 event_reply->MsgLength = sz/4;
2989 event_reply->EventDataLength =
2990 cpu_to_le16(sizeof(Mpi2EventDataSasDeviceStatusChange_t)/4);
2991 event_data = (Mpi2EventDataSasDeviceStatusChange_t *)
2992 event_reply->EventData;
2993 event_data->ReasonCode = MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA;
2994 event_data->ASC = 0x5D;
2995 event_data->DevHandle = cpu_to_le16(handle);
2996 event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address);
2997 mpt2sas_ctl_add_to_event_log(ioc, event_reply);
2998 kfree(event_reply);
2999}
3000
3001/**
d5d135b3 3002 * _scsih_io_done - scsi request callback
635374e7
EM		 3003 * @ioc: per adapter object
3004 * @smid: system request message index
3005 * @VF_ID: virtual function id
3006 * @reply: reply message frame(lower 32bit addr)
3007 *
3008 * Callback handler when using scsih_qcmd.
3009 *
3010 * Return nothing.
3011 */
3012static void
d5d135b3 3013_scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply)
635374e7
EM		 3014{
3015 Mpi2SCSIIORequest_t *mpi_request;
3016 Mpi2SCSIIOReply_t *mpi_reply;
3017 struct scsi_cmnd *scmd;
3018 u16 ioc_status;
3019 u32 xfer_cnt;
3020 u8 scsi_state;
3021 u8 scsi_status;
3022 u32 log_info;
3023 struct MPT2SAS_DEVICE *sas_device_priv_data;
3024 u32 response_code;
3025
3026 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
3027 scmd = _scsih_scsi_lookup_getclear(ioc, smid);
3028 if (scmd == NULL)
3029 return;
3030
3031 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3032
3033 if (mpi_reply == NULL) {
3034 scmd->result = DID_OK << 16;
3035 goto out;
3036 }
3037
3038 sas_device_priv_data = scmd->device->hostdata;
3039 if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
3040 sas_device_priv_data->sas_target->deleted) {
3041 scmd->result = DID_NO_CONNECT << 16;
3042 goto out;
3043 }
3044
3045 /* turning off TLR */
3046 if (!sas_device_priv_data->tlr_snoop_check) {
3047 sas_device_priv_data->tlr_snoop_check++;
3048 if (sas_device_priv_data->flags & MPT_DEVICE_TLR_ON) {
3049 response_code = (le32_to_cpu(mpi_reply->ResponseInfo)
3050 >> 24);
3051 if (response_code ==
3052 MPI2_SCSITASKMGMT_RSP_INVALID_FRAME)
3053 sas_device_priv_data->flags &=
3054 ~MPT_DEVICE_TLR_ON;
3055 }
3056 }
3057
3058 xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
3059 scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
3060 ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
3061 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
3062 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
3063 else
3064 log_info = 0;
3065 ioc_status &= MPI2_IOCSTATUS_MASK;
3066 scsi_state = mpi_reply->SCSIState;
3067 scsi_status = mpi_reply->SCSIStatus;
3068
3069 if (ioc_status == MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
3070 (scsi_status == MPI2_SCSI_STATUS_BUSY ||
3071 scsi_status == MPI2_SCSI_STATUS_RESERVATION_CONFLICT ||
3072 scsi_status == MPI2_SCSI_STATUS_TASK_SET_FULL)) {
3073 ioc_status = MPI2_IOCSTATUS_SUCCESS;
3074 }
3075
3076 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
3077 struct sense_info data;
3078 const void *sense_data = mpt2sas_base_get_sense_buffer(ioc,
3079 smid);
0d04df9b 3080 u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
635374e7 3081 le32_to_cpu(mpi_reply->SenseCount));
0d04df9b 3082 memcpy(scmd->sense_buffer, sense_data, sz);
635374e7
EM		 3083 _scsih_normalize_sense(scmd->sense_buffer, &data);
3084 /* failure prediction threshold exceeded */
3085 if (data.asc == 0x5D)
3086 _scsih_smart_predicted_fault(ioc,
3087 le16_to_cpu(mpi_reply->DevHandle));
3088 }
3089
3090 switch (ioc_status) {
3091 case MPI2_IOCSTATUS_BUSY:
3092 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
3093 scmd->result = SAM_STAT_BUSY;
3094 break;
3095
3096 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
3097 scmd->result = DID_NO_CONNECT << 16;
3098 break;
3099
3100 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
3101 if (sas_device_priv_data->block) {
3102 scmd->result = (DID_BUS_BUSY << 16);
3103 break;
3104 }
3105
3106 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
3107 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
3108 scmd->result = DID_RESET << 16;
3109 break;
3110
3111 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
3112 if ((xfer_cnt == 0) || (scmd->underflow > xfer_cnt))
3113 scmd->result = DID_SOFT_ERROR << 16;
3114 else
3115 scmd->result = (DID_OK << 16) | scsi_status;
3116 break;
3117
3118 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
3119 scmd->result = (DID_OK << 16) | scsi_status;
3120
3121 if ((scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID))
3122 break;
3123
3124 if (xfer_cnt < scmd->underflow) {
3125 if (scsi_status == SAM_STAT_BUSY)
3126 scmd->result = SAM_STAT_BUSY;
3127 else
3128 scmd->result = DID_SOFT_ERROR << 16;
3129 } else if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
3130 MPI2_SCSI_STATE_NO_SCSI_STATUS))
3131 scmd->result = DID_SOFT_ERROR << 16;
3132 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
3133 scmd->result = DID_RESET << 16;
3134 else if (!xfer_cnt && scmd->cmnd[0] == REPORT_LUNS) {
3135 mpi_reply->SCSIState = MPI2_SCSI_STATE_AUTOSENSE_VALID;
3136 mpi_reply->SCSIStatus = SAM_STAT_CHECK_CONDITION;
3137 scmd->result = (DRIVER_SENSE << 24) |
3138 SAM_STAT_CHECK_CONDITION;
3139 scmd->sense_buffer[0] = 0x70;
3140 scmd->sense_buffer[2] = ILLEGAL_REQUEST;
3141 scmd->sense_buffer[12] = 0x20;
3142 scmd->sense_buffer[13] = 0;
3143 }
3144 break;
3145
3146 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
3147 scsi_set_resid(scmd, 0);
3148 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
3149 case MPI2_IOCSTATUS_SUCCESS:
3150 scmd->result = (DID_OK << 16) | scsi_status;
3151 if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
3152 MPI2_SCSI_STATE_NO_SCSI_STATUS))
3153 scmd->result = DID_SOFT_ERROR << 16;
3154 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
3155 scmd->result = DID_RESET << 16;
3156 break;
3157
3c621b3e
EM		 3158 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
3159 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
3160 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
3161 _scsih_eedp_error_handling(scmd, ioc_status);
3162 break;
635374e7
EM		 3163 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
3164 case MPI2_IOCSTATUS_INVALID_FUNCTION:
3165 case MPI2_IOCSTATUS_INVALID_SGL:
3166 case MPI2_IOCSTATUS_INTERNAL_ERROR:
3167 case MPI2_IOCSTATUS_INVALID_FIELD:
3168 case MPI2_IOCSTATUS_INVALID_STATE:
3169 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
3170 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
3171 default:
3172 scmd->result = DID_SOFT_ERROR << 16;
3173 break;
3174
3175 }
3176
3177#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3178 if (scmd->result && (ioc->logging_level & MPT_DEBUG_REPLY))
3179 _scsih_scsi_ioc_info(ioc , scmd, mpi_reply, smid);
3180#endif
3181
3182 out:
3183 scsi_dma_unmap(scmd);
3184 scmd->scsi_done(scmd);
3185}
3186
3187/**
3188 * _scsih_link_change - process phy link changes
3189 * @ioc: per adapter object
3190 * @handle: phy handle
3191 * @attached_handle: valid for devices attached to link
3192 * @phy_number: phy number
3193 * @link_rate: new link rate
3194 * Context: user.
3195 *
3196 * Return nothing.
3197 */
3198static void
3199_scsih_link_change(struct MPT2SAS_ADAPTER *ioc, u16 handle, u16 attached_handle,
3200 u8 phy_number, u8 link_rate)
3201{
3202 mpt2sas_transport_update_phy_link_change(ioc, handle, attached_handle,
3203 phy_number, link_rate);
3204}
3205
3206/**
3207 * _scsih_sas_host_refresh - refreshing sas host object contents
3208 * @ioc: per adapter object
3209 * @update: update link information
3210 * Context: user
3211 *
3212 * During port enable, fw will send topology events for every device. Its
3213 * possible that the handles may change from the previous setting, so this
3214 * code keeping handles updating if changed.
3215 *
3216 * Return nothing.
3217 */
3218static void
3219_scsih_sas_host_refresh(struct MPT2SAS_ADAPTER *ioc, u8 update)
3220{
3221 u16 sz;
3222 u16 ioc_status;
3223 int i;
3224 Mpi2ConfigReply_t mpi_reply;
3225 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
3226
3227 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT
3228 "updating handles for sas_host(0x%016llx)\n",
3229 ioc->name, (unsigned long long)ioc->sas_hba.sas_address));
3230
3231 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys
3232 * sizeof(Mpi2SasIOUnit0PhyData_t));
3233 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
3234 if (!sas_iounit_pg0) {
3235 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3236 ioc->name, __FILE__, __LINE__, __func__);
3237 return;
3238 }
3239 if (!(mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
3240 sas_iounit_pg0, sz))) {
3241 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3242 MPI2_IOCSTATUS_MASK;
3243 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
3244 goto out;
3245 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
3246 ioc->sas_hba.phy[i].handle =
3247 le16_to_cpu(sas_iounit_pg0->PhyData[i].
3248 ControllerDevHandle);
3249 if (update)
3250 _scsih_link_change(ioc,
3251 ioc->sas_hba.phy[i].handle,
3252 le16_to_cpu(sas_iounit_pg0->PhyData[i].
3253 AttachedDevHandle), i,
3254 sas_iounit_pg0->PhyData[i].
3255 NegotiatedLinkRate >> 4);
3256 }
3257 }
3258
3259 out:
3260 kfree(sas_iounit_pg0);
3261}
3262
3263/**
3264 * _scsih_sas_host_add - create sas host object
3265 * @ioc: per adapter object
3266 *
3267 * Creating host side data object, stored in ioc->sas_hba
3268 *
3269 * Return nothing.
3270 */
3271static void
3272_scsih_sas_host_add(struct MPT2SAS_ADAPTER *ioc)
3273{
3274 int i;
3275 Mpi2ConfigReply_t mpi_reply;
3276 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
3277 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
3278 Mpi2SasPhyPage0_t phy_pg0;
3279 Mpi2SasDevicePage0_t sas_device_pg0;
3280 Mpi2SasEnclosurePage0_t enclosure_pg0;
3281 u16 ioc_status;
3282 u16 sz;
3283 u16 device_missing_delay;
3284
3285 mpt2sas_config_get_number_hba_phys(ioc, &ioc->sas_hba.num_phys);
3286 if (!ioc->sas_hba.num_phys) {
3287 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3288 ioc->name, __FILE__, __LINE__, __func__);
3289 return;
3290 }
3291
3292 /* sas_iounit page 0 */
3293 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys *
3294 sizeof(Mpi2SasIOUnit0PhyData_t));
3295 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
3296 if (!sas_iounit_pg0) {
3297 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3298 ioc->name, __FILE__, __LINE__, __func__);
3299 return;
3300 }
3301 if ((mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
3302 sas_iounit_pg0, sz))) {
3303 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3304 ioc->name, __FILE__, __LINE__, __func__);
3305 goto out;
3306 }
3307 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3308 MPI2_IOCSTATUS_MASK;
3309 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3310 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3311 ioc->name, __FILE__, __LINE__, __func__);
3312 goto out;
3313 }
3314
3315 /* sas_iounit page 1 */
3316 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
3317 sizeof(Mpi2SasIOUnit1PhyData_t));
3318 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
3319 if (!sas_iounit_pg1) {
3320 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3321 ioc->name, __FILE__, __LINE__, __func__);
3322 goto out;
3323 }
3324 if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
3325 sas_iounit_pg1, sz))) {
3326 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3327 ioc->name, __FILE__, __LINE__, __func__);
3328 goto out;
3329 }
3330 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3331 MPI2_IOCSTATUS_MASK;
3332 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3333 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3334 ioc->name, __FILE__, __LINE__, __func__);
3335 goto out;
3336 }
3337
3338 ioc->io_missing_delay =
3339 le16_to_cpu(sas_iounit_pg1->IODeviceMissingDelay);
3340 device_missing_delay =
3341 le16_to_cpu(sas_iounit_pg1->ReportDeviceMissingDelay);
3342 if (device_missing_delay & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
3343 ioc->device_missing_delay = (device_missing_delay &
3344 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
3345 else
3346 ioc->device_missing_delay = device_missing_delay &
3347 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
3348
3349 ioc->sas_hba.parent_dev = &ioc->shost->shost_gendev;
3350 ioc->sas_hba.phy = kcalloc(ioc->sas_hba.num_phys,
3351 sizeof(struct _sas_phy), GFP_KERNEL);
3352 if (!ioc->sas_hba.phy) {
3353 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3354 ioc->name, __FILE__, __LINE__, __func__);
3355 goto out;
3356 }
3357 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
3358 if ((mpt2sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
3359 i))) {
3360 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3361 ioc->name, __FILE__, __LINE__, __func__);
3362 goto out;
3363 }
3364 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3365 MPI2_IOCSTATUS_MASK;
3366 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3367 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3368 ioc->name, __FILE__, __LINE__, __func__);
3369 goto out;
3370 }
3371 ioc->sas_hba.phy[i].handle =
3372 le16_to_cpu(sas_iounit_pg0->PhyData[i].ControllerDevHandle);
3373 ioc->sas_hba.phy[i].phy_id = i;
3374 mpt2sas_transport_add_host_phy(ioc, &ioc->sas_hba.phy[i],
3375 phy_pg0, ioc->sas_hba.parent_dev);
3376 }
3377 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
3378 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.phy[0].handle))) {
3379 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3380 ioc->name, __FILE__, __LINE__, __func__);
3381 goto out;
3382 }
3383 ioc->sas_hba.handle = le16_to_cpu(sas_device_pg0.DevHandle);
3384 ioc->sas_hba.enclosure_handle =
3385 le16_to_cpu(sas_device_pg0.EnclosureHandle);
3386 ioc->sas_hba.sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
3387 printk(MPT2SAS_INFO_FMT "host_add: handle(0x%04x), "
3388 "sas_addr(0x%016llx), phys(%d)\n", ioc->name, ioc->sas_hba.handle,
3389 (unsigned long long) ioc->sas_hba.sas_address,
3390 ioc->sas_hba.num_phys) ;
3391
3392 if (ioc->sas_hba.enclosure_handle) {
3393 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
3394 &enclosure_pg0,
3395 MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
3396 ioc->sas_hba.enclosure_handle))) {
3397 ioc->sas_hba.enclosure_logical_id =
3398 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
3399 }
3400 }
3401
3402 out:
3403 kfree(sas_iounit_pg1);
3404 kfree(sas_iounit_pg0);
3405}
3406
3407/**
3408 * _scsih_expander_add - creating expander object
3409 * @ioc: per adapter object
3410 * @handle: expander handle
3411 *
3412 * Creating expander object, stored in ioc->sas_expander_list.
3413 *
3414 * Return 0 for success, else error.
3415 */
3416static int
3417_scsih_expander_add(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3418{
3419 struct _sas_node *sas_expander;
3420 Mpi2ConfigReply_t mpi_reply;
3421 Mpi2ExpanderPage0_t expander_pg0;
3422 Mpi2ExpanderPage1_t expander_pg1;
3423 Mpi2SasEnclosurePage0_t enclosure_pg0;
3424 u32 ioc_status;
3425 u16 parent_handle;
3426 __le64 sas_address;
3427 int i;
3428 unsigned long flags;
3429 struct _sas_port *mpt2sas_port;
3430 int rc = 0;
3431
3432 if (!handle)
3433 return -1;
3434
3435 if ((mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
3436 MPI2_SAS_EXPAND_PGAD_FORM_HNDL, handle))) {
3437 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3438 ioc->name, __FILE__, __LINE__, __func__);
3439 return -1;
3440 }
3441
3442 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3443 MPI2_IOCSTATUS_MASK;
3444 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3445 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3446 ioc->name, __FILE__, __LINE__, __func__);
3447 return -1;
3448 }
3449
3450 /* handle out of order topology events */
3451 parent_handle = le16_to_cpu(expander_pg0.ParentDevHandle);
3452 if (parent_handle >= ioc->sas_hba.num_phys) {
3453 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3454 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
3455 parent_handle);
3456 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3457 if (!sas_expander) {
3458 rc = _scsih_expander_add(ioc, parent_handle);
3459 if (rc != 0)
3460 return rc;
3461 }
3462 }
3463
3464 sas_address = le64_to_cpu(expander_pg0.SASAddress);
3465
3466 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3467 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
3468 sas_address);
3469 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3470
3471 if (sas_expander)
3472 return 0;
3473
3474 sas_expander = kzalloc(sizeof(struct _sas_node),
3475 GFP_KERNEL);
3476 if (!sas_expander) {
3477 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3478 ioc->name, __FILE__, __LINE__, __func__);
3479 return -1;
3480 }
3481
3482 sas_expander->handle = handle;
3483 sas_expander->num_phys = expander_pg0.NumPhys;
3484 sas_expander->parent_handle = parent_handle;
3485 sas_expander->enclosure_handle =
3486 le16_to_cpu(expander_pg0.EnclosureHandle);
3487 sas_expander->sas_address = sas_address;
3488
3489 printk(MPT2SAS_INFO_FMT "expander_add: handle(0x%04x),"
3490 " parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n", ioc->name,
3491 handle, sas_expander->parent_handle, (unsigned long long)
3492 sas_expander->sas_address, sas_expander->num_phys);
3493
3494 if (!sas_expander->num_phys)
3495 goto out_fail;
3496 sas_expander->phy = kcalloc(sas_expander->num_phys,
3497 sizeof(struct _sas_phy), GFP_KERNEL);
3498 if (!sas_expander->phy) {
3499 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3500 ioc->name, __FILE__, __LINE__, __func__);
3501 rc = -1;
3502 goto out_fail;
3503 }
3504
3505 INIT_LIST_HEAD(&sas_expander->sas_port_list);
3506 mpt2sas_port = mpt2sas_transport_port_add(ioc, handle,
3507 sas_expander->parent_handle);
3508 if (!mpt2sas_port) {
3509 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3510 ioc->name, __FILE__, __LINE__, __func__);
3511 rc = -1;
3512 goto out_fail;
3513 }
3514 sas_expander->parent_dev = &mpt2sas_port->rphy->dev;
3515
3516 for (i = 0 ; i < sas_expander->num_phys ; i++) {
3517 if ((mpt2sas_config_get_expander_pg1(ioc, &mpi_reply,
3518 &expander_pg1, i, handle))) {
3519 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3520 ioc->name, __FILE__, __LINE__, __func__);
3521 continue;
3522 }
3523 sas_expander->phy[i].handle = handle;
3524 sas_expander->phy[i].phy_id = i;
3525 mpt2sas_transport_add_expander_phy(ioc, &sas_expander->phy[i],
3526 expander_pg1, sas_expander->parent_dev);
3527 }
3528
3529 if (sas_expander->enclosure_handle) {
3530 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
3531 &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
3532 sas_expander->enclosure_handle))) {
3533 sas_expander->enclosure_logical_id =
3534 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
3535 }
3536 }
3537
3538 _scsih_expander_node_add(ioc, sas_expander);
3539 return 0;
3540
3541 out_fail:
3542
3543 if (sas_expander)
3544 kfree(sas_expander->phy);
3545 kfree(sas_expander);
3546 return rc;
3547}
3548
3549/**
3550 * _scsih_expander_remove - removing expander object
3551 * @ioc: per adapter object
3552 * @handle: expander handle
3553 *
3554 * Return nothing.
3555 */
3556static void
3557_scsih_expander_remove(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3558{
3559 struct _sas_node *sas_expander;
3560 unsigned long flags;
3561
3562 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3563 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc, handle);
3564 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3565 _scsih_expander_node_remove(ioc, sas_expander);
3566}
3567
3568/**
3569 * _scsih_add_device - creating sas device object
3570 * @ioc: per adapter object
3571 * @handle: sas device handle
3572 * @phy_num: phy number end device attached to
3573 * @is_pd: is this hidden raid component
3574 *
3575 * Creating end device object, stored in ioc->sas_device_list.
3576 *
3577 * Returns 0 for success, non-zero for failure.
3578 */
3579static int
3580_scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd)
3581{
3582 Mpi2ConfigReply_t mpi_reply;
3583 Mpi2SasDevicePage0_t sas_device_pg0;
3584 Mpi2SasEnclosurePage0_t enclosure_pg0;
3585 struct _sas_device *sas_device;
3586 u32 ioc_status;
3587 __le64 sas_address;
3588 u32 device_info;
3589 unsigned long flags;
3590
3591 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
3592 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
3593 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3594 ioc->name, __FILE__, __LINE__, __func__);
3595 return -1;
3596 }
3597
3598 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3599 MPI2_IOCSTATUS_MASK;
3600 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3601 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3602 ioc->name, __FILE__, __LINE__, __func__);
3603 return -1;
3604 }
3605
3606 /* check if device is present */
3607 if (!(le16_to_cpu(sas_device_pg0.Flags) &
3608 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
3609 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3610 ioc->name, __FILE__, __LINE__, __func__);
3611 printk(MPT2SAS_ERR_FMT "Flags = 0x%04x\n",
3612 ioc->name, le16_to_cpu(sas_device_pg0.Flags));
3613 return -1;
3614 }
3615
3616 /* check if there were any issus with discovery */
3617 if (sas_device_pg0.AccessStatus ==
3618 MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED) {
3619 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3620 ioc->name, __FILE__, __LINE__, __func__);
3621 printk(MPT2SAS_ERR_FMT "AccessStatus = 0x%02x\n",
3622 ioc->name, sas_device_pg0.AccessStatus);
3623 return -1;
3624 }
3625
3626 /* check if this is end device */
3627 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
3628 if (!(_scsih_is_end_device(device_info))) {
3629 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3630 ioc->name, __FILE__, __LINE__, __func__);
3631 return -1;
3632 }
3633
3634 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
3635
3636 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3637 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
3638 sas_address);
3639 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3640
3641 if (sas_device) {
3642 _scsih_ublock_io_device(ioc, handle);
3643 return 0;
3644 }
3645
3646 sas_device = kzalloc(sizeof(struct _sas_device),
3647 GFP_KERNEL);
3648 if (!sas_device) {
3649 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3650 ioc->name, __FILE__, __LINE__, __func__);
3651 return -1;
3652 }
3653
3654 sas_device->handle = handle;
3655 sas_device->parent_handle =
3656 le16_to_cpu(sas_device_pg0.ParentDevHandle);
3657 sas_device->enclosure_handle =
3658 le16_to_cpu(sas_device_pg0.EnclosureHandle);
3659 sas_device->slot =
3660 le16_to_cpu(sas_device_pg0.Slot);
3661 sas_device->device_info = device_info;
3662 sas_device->sas_address = sas_address;
3663 sas_device->hidden_raid_component = is_pd;
3664
3665 /* get enclosure_logical_id */
15052c9e
KD		 3666 if (sas_device->enclosure_handle && !(mpt2sas_config_get_enclosure_pg0(
3667 ioc, &mpi_reply, &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
3668 sas_device->enclosure_handle)))
635374e7
EM		 3669 sas_device->enclosure_logical_id =
3670 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
635374e7
EM		 3671
3672 /* get device name */
3673 sas_device->device_name = le64_to_cpu(sas_device_pg0.DeviceName);
3674
3675 if (ioc->wait_for_port_enable_to_complete)
3676 _scsih_sas_device_init_add(ioc, sas_device);
3677 else
3678 _scsih_sas_device_add(ioc, sas_device);
3679
3680 return 0;
3681}
3682
3683/**
3684 * _scsih_remove_device - removing sas device object
3685 * @ioc: per adapter object
3686 * @handle: sas device handle
3687 *
3688 * Return nothing.
3689 */
3690static void
3691_scsih_remove_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3692{
3693 struct MPT2SAS_TARGET *sas_target_priv_data;
3694 struct _sas_device *sas_device;
3695 unsigned long flags;
3696 Mpi2SasIoUnitControlReply_t mpi_reply;
3697 Mpi2SasIoUnitControlRequest_t mpi_request;
3698 u16 device_handle;
3699
3700 /* lookup sas_device */
3701 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3702 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
3703 if (!sas_device) {
3704 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3705 return;
3706 }
3707
3708 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter: handle"
3709 "(0x%04x)\n", ioc->name, __func__, handle));
3710
3711 if (sas_device->starget && sas_device->starget->hostdata) {
3712 sas_target_priv_data = sas_device->starget->hostdata;
3713 sas_target_priv_data->deleted = 1;
3714 }
3715 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3716
3717 if (ioc->remove_host)
3718 goto out;
3719
3720 /* Target Reset to flush out all the outstanding IO */
3721 device_handle = (sas_device->hidden_raid_component) ?
3722 sas_device->volume_handle : handle;
3723 if (device_handle) {
3724 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "issue target reset: "
3725 "handle(0x%04x)\n", ioc->name, device_handle));
3726 mutex_lock(&ioc->tm_cmds.mutex);
3727 mpt2sas_scsih_issue_tm(ioc, device_handle, 0,
3728 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 10);
3729 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
3730 mutex_unlock(&ioc->tm_cmds.mutex);
3731 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "issue target reset "
3732 "done: handle(0x%04x)\n", ioc->name, device_handle));
3733 }
3734
3735 /* SAS_IO_UNIT_CNTR - send REMOVE_DEVICE */
3736 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sas_iounit: handle"
3737 "(0x%04x)\n", ioc->name, handle));
3738 memset(&mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
3739 mpi_request.Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
3740 mpi_request.Operation = MPI2_SAS_OP_REMOVE_DEVICE;
3741 mpi_request.DevHandle = handle;
3742 mpi_request.VF_ID = 0;
3743 if ((mpt2sas_base_sas_iounit_control(ioc, &mpi_reply,
3744 &mpi_request)) != 0) {
3745 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3746 ioc->name, __FILE__, __LINE__, __func__);
3747 }
3748
3749 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sas_iounit: ioc_status"
3750 "(0x%04x), loginfo(0x%08x)\n", ioc->name,
3751 le16_to_cpu(mpi_reply.IOCStatus),
3752 le32_to_cpu(mpi_reply.IOCLogInfo)));
3753
3754 out:
3755 mpt2sas_transport_port_remove(ioc, sas_device->sas_address,
3756 sas_device->parent_handle);
3757
3758 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), sas_addr"
3759 "(0x%016llx)\n", ioc->name, sas_device->handle,
3760 (unsigned long long) sas_device->sas_address);
3761 _scsih_sas_device_remove(ioc, sas_device);
3762
3763 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit: handle"
3764 "(0x%04x)\n", ioc->name, __func__, handle));
3765}
3766
3767#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3768/**
3769 * _scsih_sas_topology_change_event_debug - debug for topology event
3770 * @ioc: per adapter object
3771 * @event_data: event data payload
3772 * Context: user.
3773 */
3774static void
3775_scsih_sas_topology_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
3776 Mpi2EventDataSasTopologyChangeList_t *event_data)
3777{
3778 int i;
3779 u16 handle;
3780 u16 reason_code;
3781 u8 phy_number;
3782 char *status_str = NULL;
3783 char link_rate[25];
3784
3785 switch (event_data->ExpStatus) {
3786 case MPI2_EVENT_SAS_TOPO_ES_ADDED:
3787 status_str = "add";
3788 break;
3789 case MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING:
3790 status_str = "remove";
3791 break;
3792 case MPI2_EVENT_SAS_TOPO_ES_RESPONDING:
3793 status_str = "responding";
3794 break;
3795 case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
3796 status_str = "remove delay";
3797 break;
3798 default:
3799 status_str = "unknown status";
3800 break;
3801 }
3802 printk(MPT2SAS_DEBUG_FMT "sas topology change: (%s)\n",
3803 ioc->name, status_str);
3804 printk(KERN_DEBUG "\thandle(0x%04x), enclosure_handle(0x%04x) "
3805 "start_phy(%02d), count(%d)\n",
3806 le16_to_cpu(event_data->ExpanderDevHandle),
3807 le16_to_cpu(event_data->EnclosureHandle),
3808 event_data->StartPhyNum, event_data->NumEntries);
3809 for (i = 0; i < event_data->NumEntries; i++) {
3810 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
3811 if (!handle)
3812 continue;
3813 phy_number = event_data->StartPhyNum + i;
3814 reason_code = event_data->PHY[i].PhyStatus &
3815 MPI2_EVENT_SAS_TOPO_RC_MASK;
3816 switch (reason_code) {
3817 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
3818 snprintf(link_rate, 25, ": add, link(0x%02x)",
3819 (event_data->PHY[i].LinkRate >> 4));
3820 status_str = link_rate;
3821 break;
3822 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
3823 status_str = ": remove";
3824 break;
3825 case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
3826 status_str = ": remove_delay";
3827 break;
3828 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
3829 snprintf(link_rate, 25, ": link(0x%02x)",
3830 (event_data->PHY[i].LinkRate >> 4));
3831 status_str = link_rate;
3832 break;
3833 case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
3834 status_str = ": responding";
3835 break;
3836 default:
3837 status_str = ": unknown";
3838 break;
3839 }
3840 printk(KERN_DEBUG "\tphy(%02d), attached_handle(0x%04x)%s\n",
3841 phy_number, handle, status_str);
3842 }
3843}
3844#endif
3845
3846/**
3847 * _scsih_sas_topology_change_event - handle topology changes
3848 * @ioc: per adapter object
3849 * @VF_ID:
3850 * @event_data: event data payload
3851 * fw_event:
3852 * Context: user.
3853 *
3854 */
3855static void
3856_scsih_sas_topology_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
3857 Mpi2EventDataSasTopologyChangeList_t *event_data,
3858 struct fw_event_work *fw_event)
3859{
3860 int i;
3861 u16 parent_handle, handle;
3862 u16 reason_code;
3863 u8 phy_number;
3864 struct _sas_node *sas_expander;
3865 unsigned long flags;
3866 u8 link_rate_;
3867
3868#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3869 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
3870 _scsih_sas_topology_change_event_debug(ioc, event_data);
3871#endif
3872
3873 if (!ioc->sas_hba.num_phys)
3874 _scsih_sas_host_add(ioc);
3875 else
3876 _scsih_sas_host_refresh(ioc, 0);
3877
3878 if (fw_event->ignore) {
3879 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "ignoring expander "
3880 "event\n", ioc->name));
3881 return;
3882 }
3883
3884 parent_handle = le16_to_cpu(event_data->ExpanderDevHandle);
3885
3886 /* handle expander add */
3887 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_ADDED)
3888 if (_scsih_expander_add(ioc, parent_handle) != 0)
3889 return;
3890
3891 /* handle siblings events */
3892 for (i = 0; i < event_data->NumEntries; i++) {
3893 if (fw_event->ignore) {
3894 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "ignoring "
3895 "expander event\n", ioc->name));
3896 return;
3897 }
3898 if (event_data->PHY[i].PhyStatus &
3899 MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT)
3900 continue;
3901 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
3902 if (!handle)
3903 continue;
3904 phy_number = event_data->StartPhyNum + i;
3905 reason_code = event_data->PHY[i].PhyStatus &
3906 MPI2_EVENT_SAS_TOPO_RC_MASK;
3907 link_rate_ = event_data->PHY[i].LinkRate >> 4;
3908 switch (reason_code) {
3909 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
3910 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
3911 if (!parent_handle) {
3912 if (phy_number < ioc->sas_hba.num_phys)
3913 _scsih_link_change(ioc,
3914 ioc->sas_hba.phy[phy_number].handle,
3915 handle, phy_number, link_rate_);
3916 } else {
3917 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3918 sas_expander =
3919 mpt2sas_scsih_expander_find_by_handle(ioc,
3920 parent_handle);
3921 spin_unlock_irqrestore(&ioc->sas_node_lock,
3922 flags);
3923 if (sas_expander) {
3924 if (phy_number < sas_expander->num_phys)
3925 _scsih_link_change(ioc,
3926 sas_expander->
3927 phy[phy_number].handle,
3928 handle, phy_number,
3929 link_rate_);
3930 }
3931 }
3932 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED) {
3933 if (link_rate_ >= MPI2_SAS_NEG_LINK_RATE_1_5)
3934 _scsih_ublock_io_device(ioc, handle);
3935 }
3936 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED) {
3937 if (link_rate_ < MPI2_SAS_NEG_LINK_RATE_1_5)
3938 break;
3939 _scsih_add_device(ioc, handle, phy_number, 0);
3940 }
3941 break;
3942 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
3943 _scsih_remove_device(ioc, handle);
3944 break;
3945 }
3946 }
3947
3948 /* handle expander removal */
3949 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
3950 _scsih_expander_remove(ioc, parent_handle);
3951
3952}
3953
3954#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3955/**
3956 * _scsih_sas_device_status_change_event_debug - debug for device event
3957 * @event_data: event data payload
3958 * Context: user.
3959 *
3960 * Return nothing.
3961 */
3962static void
3963_scsih_sas_device_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
3964 Mpi2EventDataSasDeviceStatusChange_t *event_data)
3965{
3966 char *reason_str = NULL;
3967
3968 switch (event_data->ReasonCode) {
3969 case MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA:
3970 reason_str = "smart data";
3971 break;
3972 case MPI2_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED:
3973 reason_str = "unsupported device discovered";
3974 break;
3975 case MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
3976 reason_str = "internal device reset";
3977 break;
3978 case MPI2_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL:
3979 reason_str = "internal task abort";
3980 break;
3981 case MPI2_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL:
3982 reason_str = "internal task abort set";
3983 break;
3984 case MPI2_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL:
3985 reason_str = "internal clear task set";
3986 break;
3987 case MPI2_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL:
3988 reason_str = "internal query task";
3989 break;
3990 case MPI2_EVENT_SAS_DEV_STAT_RC_SATA_INIT_FAILURE:
3991 reason_str = "sata init failure";
3992 break;
3993 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET:
3994 reason_str = "internal device reset complete";
3995 break;
3996 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_TASK_ABORT_INTERNAL:
3997 reason_str = "internal task abort complete";
3998 break;
3999 case MPI2_EVENT_SAS_DEV_STAT_RC_ASYNC_NOTIFICATION:
4000 reason_str = "internal async notification";
4001 break;
4002 default:
4003 reason_str = "unknown reason";
4004 break;
4005 }
4006 printk(MPT2SAS_DEBUG_FMT "device status change: (%s)\n"
4007 "\thandle(0x%04x), sas address(0x%016llx)", ioc->name,
4008 reason_str, le16_to_cpu(event_data->DevHandle),
4009 (unsigned long long)le64_to_cpu(event_data->SASAddress));
4010 if (event_data->ReasonCode == MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA)
4011 printk(MPT2SAS_DEBUG_FMT ", ASC(0x%x), ASCQ(0x%x)\n", ioc->name,
4012 event_data->ASC, event_data->ASCQ);
4013 printk(KERN_INFO "\n");
4014}
4015#endif
4016
4017/**
4018 * _scsih_sas_device_status_change_event - handle device status change
4019 * @ioc: per adapter object
4020 * @VF_ID:
4021 * @event_data: event data payload
4022 * Context: user.
4023 *
4024 * Return nothing.
4025 */
4026static void
4027_scsih_sas_device_status_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4028 Mpi2EventDataSasDeviceStatusChange_t *event_data)
4029{
4030#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4031 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4032 _scsih_sas_device_status_change_event_debug(ioc, event_data);
4033#endif
4034}
4035
4036#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4037/**
4038 * _scsih_sas_enclosure_dev_status_change_event_debug - debug for enclosure event
4039 * @ioc: per adapter object
4040 * @event_data: event data payload
4041 * Context: user.
4042 *
4043 * Return nothing.
4044 */
4045static void
4046_scsih_sas_enclosure_dev_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
4047 Mpi2EventDataSasEnclDevStatusChange_t *event_data)
4048{
4049 char *reason_str = NULL;
4050
4051 switch (event_data->ReasonCode) {
4052 case MPI2_EVENT_SAS_ENCL_RC_ADDED:
4053 reason_str = "enclosure add";
4054 break;
4055 case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING:
4056 reason_str = "enclosure remove";
4057 break;
4058 default:
4059 reason_str = "unknown reason";
4060 break;
4061 }
4062
4063 printk(MPT2SAS_DEBUG_FMT "enclosure status change: (%s)\n"
4064 "\thandle(0x%04x), enclosure logical id(0x%016llx)"
4065 " number slots(%d)\n", ioc->name, reason_str,
4066 le16_to_cpu(event_data->EnclosureHandle),
4067 (unsigned long long)le64_to_cpu(event_data->EnclosureLogicalID),
4068 le16_to_cpu(event_data->StartSlot));
4069}
4070#endif
4071
4072/**
4073 * _scsih_sas_enclosure_dev_status_change_event - handle enclosure events
4074 * @ioc: per adapter object
4075 * @VF_ID:
4076 * @event_data: event data payload
4077 * Context: user.
4078 *
4079 * Return nothing.
4080 */
4081static void
4082_scsih_sas_enclosure_dev_status_change_event(struct MPT2SAS_ADAPTER *ioc,
4083 u8 VF_ID, Mpi2EventDataSasEnclDevStatusChange_t *event_data)
4084{
4085#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4086 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4087 _scsih_sas_enclosure_dev_status_change_event_debug(ioc,
4088 event_data);
4089#endif
4090}
4091
4092/**
4093 * _scsih_sas_broadcast_primative_event - handle broadcast events
4094 * @ioc: per adapter object
4095 * @event_data: event data payload
4096 * Context: user.
4097 *
4098 * Return nothing.
4099 */
4100static void
4101_scsih_sas_broadcast_primative_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4102 Mpi2EventDataSasBroadcastPrimitive_t *event_data)
4103{
4104 struct scsi_cmnd *scmd;
4105 u16 smid, handle;
4106 u32 lun;
4107 struct MPT2SAS_DEVICE *sas_device_priv_data;
4108 u32 termination_count;
4109 u32 query_count;
4110 Mpi2SCSITaskManagementReply_t *mpi_reply;
4111
4112 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "broadcast primative: "
4113 "phy number(%d), width(%d)\n", ioc->name, event_data->PhyNum,
4114 event_data->PortWidth));
4115
4116 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name,
4117 __func__));
4118
4119 mutex_lock(&ioc->tm_cmds.mutex);
4120 termination_count = 0;
4121 query_count = 0;
4122 mpi_reply = ioc->tm_cmds.reply;
4123 for (smid = 1; smid <= ioc->request_depth; smid++) {
4124 scmd = _scsih_scsi_lookup_get(ioc, smid);
4125 if (!scmd)
4126 continue;
4127 sas_device_priv_data = scmd->device->hostdata;
4128 if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
4129 continue;
4130 /* skip hidden raid components */
4131 if (sas_device_priv_data->sas_target->flags &
4132 MPT_TARGET_FLAGS_RAID_COMPONENT)
4133 continue;
4134 /* skip volumes */
4135 if (sas_device_priv_data->sas_target->flags &
4136 MPT_TARGET_FLAGS_VOLUME)
4137 continue;
4138
4139 handle = sas_device_priv_data->sas_target->handle;
4140 lun = sas_device_priv_data->lun;
4141 query_count++;
4142
4143 mpt2sas_scsih_issue_tm(ioc, handle, lun,
4144 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30);
8901cbb4 4145 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
635374e7
EM		 4146
4147 if ((mpi_reply->IOCStatus == MPI2_IOCSTATUS_SUCCESS) &&
4148 (mpi_reply->ResponseCode ==
4149 MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
4150 mpi_reply->ResponseCode ==
4151 MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC))
4152 continue;
4153
4154 mpt2sas_scsih_issue_tm(ioc, handle, lun,
8901cbb4
EM		 4155 MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET, 0, 30);
4156 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
635374e7
EM		 4157 termination_count += le32_to_cpu(mpi_reply->TerminationCount);
4158 }
635374e7
EM		 4159 ioc->broadcast_aen_busy = 0;
4160 mutex_unlock(&ioc->tm_cmds.mutex);
4161
4162 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT
4163 "%s - exit, query_count = %d termination_count = %d\n",
4164 ioc->name, __func__, query_count, termination_count));
4165}
4166
4167/**
4168 * _scsih_sas_discovery_event - handle discovery events
4169 * @ioc: per adapter object
4170 * @event_data: event data payload
4171 * Context: user.
4172 *
4173 * Return nothing.
4174 */
4175static void
4176_scsih_sas_discovery_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4177 Mpi2EventDataSasDiscovery_t *event_data)
4178{
4179#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4180 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) {
4181 printk(MPT2SAS_DEBUG_FMT "discovery event: (%s)", ioc->name,
4182 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
4183 "start" : "stop");
4184 if (event_data->DiscoveryStatus)
4185 printk(MPT2SAS_DEBUG_FMT ", discovery_status(0x%08x)",
4186 ioc->name, le32_to_cpu(event_data->DiscoveryStatus));
4187 printk("\n");
4188 }
4189#endif
4190
4191 if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED &&
4192 !ioc->sas_hba.num_phys)
4193 _scsih_sas_host_add(ioc);
4194}
4195
4196/**
4197 * _scsih_reprobe_lun - reprobing lun
4198 * @sdev: scsi device struct
4199 * @no_uld_attach: sdev->no_uld_attach flag setting
4200 *
4201 **/
4202static void
4203_scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach)
4204{
4205 int rc;
4206
4207 sdev->no_uld_attach = no_uld_attach ? 1 : 0;
4208 sdev_printk(KERN_INFO, sdev, "%s raid component\n",
4209 sdev->no_uld_attach ? "hidding" : "exposing");
4210 rc = scsi_device_reprobe(sdev);
4211}
4212
4213/**
4214 * _scsih_reprobe_target - reprobing target
4215 * @starget: scsi target struct
4216 * @no_uld_attach: sdev->no_uld_attach flag setting
4217 *
4218 * Note: no_uld_attach flag determines whether the disk device is attached
4219 * to block layer. A value of `1` means to not attach.
4220 **/
4221static void
4222_scsih_reprobe_target(struct scsi_target *starget, int no_uld_attach)
4223{
4224 struct MPT2SAS_TARGET *sas_target_priv_data = starget->hostdata;
4225
4226 if (no_uld_attach)
4227 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_RAID_COMPONENT;
4228 else
4229 sas_target_priv_data->flags &= ~MPT_TARGET_FLAGS_RAID_COMPONENT;
4230
4231 starget_for_each_device(starget, no_uld_attach ? (void *)1 : NULL,
4232 _scsih_reprobe_lun);
4233}
4234/**
4235 * _scsih_sas_volume_add - add new volume
4236 * @ioc: per adapter object
4237 * @element: IR config element data
4238 * Context: user.
4239 *
4240 * Return nothing.
4241 */
4242static void
4243_scsih_sas_volume_add(struct MPT2SAS_ADAPTER *ioc,
4244 Mpi2EventIrConfigElement_t *element)
4245{
4246 struct _raid_device *raid_device;
4247 unsigned long flags;
4248 u64 wwid;
4249 u16 handle = le16_to_cpu(element->VolDevHandle);
4250 int rc;
4251
4252#if 0 /* RAID_HACKS */
4253 if (le32_to_cpu(event_data->Flags) &
4254 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
4255 return;
4256#endif
4257
4258 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
4259 if (!wwid) {
4260 printk(MPT2SAS_ERR_FMT
4261 "failure at %s:%d/%s()!\n", ioc->name,
4262 __FILE__, __LINE__, __func__);
4263 return;
4264 }
4265
4266 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4267 raid_device = _scsih_raid_device_find_by_wwid(ioc, wwid);
4268 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4269
4270 if (raid_device)
4271 return;
4272
4273 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
4274 if (!raid_device) {
4275 printk(MPT2SAS_ERR_FMT
4276 "failure at %s:%d/%s()!\n", ioc->name,
4277 __FILE__, __LINE__, __func__);
4278 return;
4279 }
4280
4281 raid_device->id = ioc->sas_id++;
4282 raid_device->channel = RAID_CHANNEL;
4283 raid_device->handle = handle;
4284 raid_device->wwid = wwid;
4285 _scsih_raid_device_add(ioc, raid_device);
4286 if (!ioc->wait_for_port_enable_to_complete) {
4287 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
4288 raid_device->id, 0);
4289 if (rc)
4290 _scsih_raid_device_remove(ioc, raid_device);
4291 } else
4292 _scsih_determine_boot_device(ioc, raid_device, 1);
4293}
4294
4295/**
4296 * _scsih_sas_volume_delete - delete volume
4297 * @ioc: per adapter object
4298 * @element: IR config element data
4299 * Context: user.
4300 *
4301 * Return nothing.
4302 */
4303static void
4304_scsih_sas_volume_delete(struct MPT2SAS_ADAPTER *ioc,
4305 Mpi2EventIrConfigElement_t *element)
4306{
4307 struct _raid_device *raid_device;
4308 u16 handle = le16_to_cpu(element->VolDevHandle);
4309 unsigned long flags;
4310 struct MPT2SAS_TARGET *sas_target_priv_data;
4311
4312#if 0 /* RAID_HACKS */
4313 if (le32_to_cpu(event_data->Flags) &
4314 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
4315 return;
4316#endif
4317
4318 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4319 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
4320 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4321 if (!raid_device)
4322 return;
4323 if (raid_device->starget) {
4324 sas_target_priv_data = raid_device->starget->hostdata;
4325 sas_target_priv_data->deleted = 1;
4326 scsi_remove_target(&raid_device->starget->dev);
4327 }
4328 _scsih_raid_device_remove(ioc, raid_device);
4329}
4330
4331/**
4332 * _scsih_sas_pd_expose - expose pd component to /dev/sdX
4333 * @ioc: per adapter object
4334 * @element: IR config element data
4335 * Context: user.
4336 *
4337 * Return nothing.
4338 */
4339static void
4340_scsih_sas_pd_expose(struct MPT2SAS_ADAPTER *ioc,
4341 Mpi2EventIrConfigElement_t *element)
4342{
4343 struct _sas_device *sas_device;
4344 unsigned long flags;
4345 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4346
4347 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4348 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4349 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4350 if (!sas_device)
4351 return;
4352
4353 /* exposing raid component */
4354 sas_device->volume_handle = 0;
4355 sas_device->volume_wwid = 0;
4356 sas_device->hidden_raid_component = 0;
4357 _scsih_reprobe_target(sas_device->starget, 0);
4358}
4359
4360/**
4361 * _scsih_sas_pd_hide - hide pd component from /dev/sdX
4362 * @ioc: per adapter object
4363 * @element: IR config element data
4364 * Context: user.
4365 *
4366 * Return nothing.
4367 */
4368static void
4369_scsih_sas_pd_hide(struct MPT2SAS_ADAPTER *ioc,
4370 Mpi2EventIrConfigElement_t *element)
4371{
4372 struct _sas_device *sas_device;
4373 unsigned long flags;
4374 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4375
4376 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4377 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4378 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4379 if (!sas_device)
4380 return;
4381
4382 /* hiding raid component */
4383 mpt2sas_config_get_volume_handle(ioc, handle,
4384 &sas_device->volume_handle);
4385 mpt2sas_config_get_volume_wwid(ioc, sas_device->volume_handle,
4386 &sas_device->volume_wwid);
4387 sas_device->hidden_raid_component = 1;
4388 _scsih_reprobe_target(sas_device->starget, 1);
4389}
4390
4391/**
4392 * _scsih_sas_pd_delete - delete pd component
4393 * @ioc: per adapter object
4394 * @element: IR config element data
4395 * Context: user.
4396 *
4397 * Return nothing.
4398 */
4399static void
4400_scsih_sas_pd_delete(struct MPT2SAS_ADAPTER *ioc,
4401 Mpi2EventIrConfigElement_t *element)
4402{
4403 struct _sas_device *sas_device;
4404 unsigned long flags;
4405 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4406
4407 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4408 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4409 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4410 if (!sas_device)
4411 return;
4412 _scsih_remove_device(ioc, handle);
4413}
4414
4415/**
4416 * _scsih_sas_pd_add - remove pd component
4417 * @ioc: per adapter object
4418 * @element: IR config element data
4419 * Context: user.
4420 *
4421 * Return nothing.
4422 */
4423static void
4424_scsih_sas_pd_add(struct MPT2SAS_ADAPTER *ioc,
4425 Mpi2EventIrConfigElement_t *element)
4426{
4427 struct _sas_device *sas_device;
4428 unsigned long flags;
4429 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4430
4431 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4432 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4433 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4434 if (sas_device)
4435 sas_device->hidden_raid_component = 1;
4436 else
4437 _scsih_add_device(ioc, handle, 0, 1);
4438}
4439
4440#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4441/**
4442 * _scsih_sas_ir_config_change_event_debug - debug for IR Config Change events
4443 * @ioc: per adapter object
4444 * @event_data: event data payload
4445 * Context: user.
4446 *
4447 * Return nothing.
4448 */
4449static void
4450_scsih_sas_ir_config_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
4451 Mpi2EventDataIrConfigChangeList_t *event_data)
4452{
4453 Mpi2EventIrConfigElement_t *element;
4454 u8 element_type;
4455 int i;
4456 char *reason_str = NULL, *element_str = NULL;
4457
4458 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
4459
4460 printk(MPT2SAS_DEBUG_FMT "raid config change: (%s), elements(%d)\n",
4461 ioc->name, (le32_to_cpu(event_data->Flags) &
4462 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ?
4463 "foreign" : "native", event_data->NumElements);
4464 for (i = 0; i < event_data->NumElements; i++, element++) {
4465 switch (element->ReasonCode) {
4466 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
4467 reason_str = "add";
4468 break;
4469 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
4470 reason_str = "remove";
4471 break;
4472 case MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE:
4473 reason_str = "no change";
4474 break;
4475 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
4476 reason_str = "hide";
4477 break;
4478 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
4479 reason_str = "unhide";
4480 break;
4481 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
4482 reason_str = "volume_created";
4483 break;
4484 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
4485 reason_str = "volume_deleted";
4486 break;
4487 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
4488 reason_str = "pd_created";
4489 break;
4490 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
4491 reason_str = "pd_deleted";
4492 break;
4493 default:
4494 reason_str = "unknown reason";
4495 break;
4496 }
4497 element_type = le16_to_cpu(element->ElementFlags) &
4498 MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
4499 switch (element_type) {
4500 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT:
4501 element_str = "volume";
4502 break;
4503 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT:
4504 element_str = "phys disk";
4505 break;
4506 case MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT:
4507 element_str = "hot spare";
4508 break;
4509 default:
4510 element_str = "unknown element";
4511 break;
4512 }
4513 printk(KERN_DEBUG "\t(%s:%s), vol handle(0x%04x), "
4514 "pd handle(0x%04x), pd num(0x%02x)\n", element_str,
4515 reason_str, le16_to_cpu(element->VolDevHandle),
4516 le16_to_cpu(element->PhysDiskDevHandle),
4517 element->PhysDiskNum);
4518 }
4519}
4520#endif
4521
4522/**
4523 * _scsih_sas_ir_config_change_event - handle ir configuration change events
4524 * @ioc: per adapter object
4525 * @VF_ID:
4526 * @event_data: event data payload
4527 * Context: user.
4528 *
4529 * Return nothing.
4530 */
4531static void
4532_scsih_sas_ir_config_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4533 Mpi2EventDataIrConfigChangeList_t *event_data)
4534{
4535 Mpi2EventIrConfigElement_t *element;
4536 int i;
4537
4538#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4539 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4540 _scsih_sas_ir_config_change_event_debug(ioc, event_data);
4541
4542#endif
4543
4544 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
4545 for (i = 0; i < event_data->NumElements; i++, element++) {
4546
4547 switch (element->ReasonCode) {
4548 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
4549 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
4550 _scsih_sas_volume_add(ioc, element);
4551 break;
4552 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
4553 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
4554 _scsih_sas_volume_delete(ioc, element);
4555 break;
4556 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
4557 _scsih_sas_pd_hide(ioc, element);
4558 break;
4559 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
4560 _scsih_sas_pd_expose(ioc, element);
4561 break;
4562 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
4563 _scsih_sas_pd_add(ioc, element);
4564 break;
4565 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
4566 _scsih_sas_pd_delete(ioc, element);
4567 break;
4568 }
4569 }
4570}
4571
4572/**
4573 * _scsih_sas_ir_volume_event - IR volume event
4574 * @ioc: per adapter object
4575 * @event_data: event data payload
4576 * Context: user.
4577 *
4578 * Return nothing.
4579 */
4580static void
4581_scsih_sas_ir_volume_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4582 Mpi2EventDataIrVolume_t *event_data)
4583{
4584 u64 wwid;
4585 unsigned long flags;
4586 struct _raid_device *raid_device;
4587 u16 handle;
4588 u32 state;
4589 int rc;
4590 struct MPT2SAS_TARGET *sas_target_priv_data;
4591
4592 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
4593 return;
4594
4595 handle = le16_to_cpu(event_data->VolDevHandle);
4596 state = le32_to_cpu(event_data->NewValue);
4597 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle(0x%04x), "
4598 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
4599 le32_to_cpu(event_data->PreviousValue), state));
4600
4601 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4602 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
4603 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4604
4605 switch (state) {
4606 case MPI2_RAID_VOL_STATE_MISSING:
4607 case MPI2_RAID_VOL_STATE_FAILED:
4608 if (!raid_device)
4609 break;
4610 if (raid_device->starget) {
4611 sas_target_priv_data = raid_device->starget->hostdata;
4612 sas_target_priv_data->deleted = 1;
4613 scsi_remove_target(&raid_device->starget->dev);
4614 }
4615 _scsih_raid_device_remove(ioc, raid_device);
4616 break;
4617
4618 case MPI2_RAID_VOL_STATE_ONLINE:
4619 case MPI2_RAID_VOL_STATE_DEGRADED:
4620 case MPI2_RAID_VOL_STATE_OPTIMAL:
4621 if (raid_device)
4622 break;
4623
4624 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
4625 if (!wwid) {
4626 printk(MPT2SAS_ERR_FMT
4627 "failure at %s:%d/%s()!\n", ioc->name,
4628 __FILE__, __LINE__, __func__);
4629 break;
4630 }
4631
4632 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
4633 if (!raid_device) {
4634 printk(MPT2SAS_ERR_FMT
4635 "failure at %s:%d/%s()!\n", ioc->name,
4636 __FILE__, __LINE__, __func__);
4637 break;
4638 }
4639
4640 raid_device->id = ioc->sas_id++;
4641 raid_device->channel = RAID_CHANNEL;
4642 raid_device->handle = handle;
4643 raid_device->wwid = wwid;
4644 _scsih_raid_device_add(ioc, raid_device);
4645 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
4646 raid_device->id, 0);
4647 if (rc)
4648 _scsih_raid_device_remove(ioc, raid_device);
4649 break;
4650
4651 case MPI2_RAID_VOL_STATE_INITIALIZING:
4652 default:
4653 break;
4654 }
4655}
4656
4657/**
4658 * _scsih_sas_ir_physical_disk_event - PD event
4659 * @ioc: per adapter object
4660 * @event_data: event data payload
4661 * Context: user.
4662 *
4663 * Return nothing.
4664 */
4665static void
4666_scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4667 Mpi2EventDataIrPhysicalDisk_t *event_data)
4668{
4669 u16 handle;
4670 u32 state;
4671 struct _sas_device *sas_device;
4672 unsigned long flags;
4673
4674 if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED)
4675 return;
4676
4677 handle = le16_to_cpu(event_data->PhysDiskDevHandle);
4678 state = le32_to_cpu(event_data->NewValue);
4679
4680 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle(0x%04x), "
4681 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
4682 le32_to_cpu(event_data->PreviousValue), state));
4683
4684 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4685 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4686 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4687
4688 switch (state) {
4689#if 0
4690 case MPI2_RAID_PD_STATE_OFFLINE:
4691 if (sas_device)
4692 _scsih_remove_device(ioc, handle);
4693 break;
4694#endif
4695 case MPI2_RAID_PD_STATE_ONLINE:
4696 case MPI2_RAID_PD_STATE_DEGRADED:
4697 case MPI2_RAID_PD_STATE_REBUILDING:
4698 case MPI2_RAID_PD_STATE_OPTIMAL:
4699 if (sas_device)
4700 sas_device->hidden_raid_component = 1;
4701 else
4702 _scsih_add_device(ioc, handle, 0, 1);
4703 break;
4704
4705 case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
4706 case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
4707 case MPI2_RAID_PD_STATE_HOT_SPARE:
4708 default:
4709 break;
4710 }
4711}
4712
4713#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4714/**
4715 * _scsih_sas_ir_operation_status_event_debug - debug for IR op event
4716 * @ioc: per adapter object
4717 * @event_data: event data payload
4718 * Context: user.
4719 *
4720 * Return nothing.
4721 */
4722static void
4723_scsih_sas_ir_operation_status_event_debug(struct MPT2SAS_ADAPTER *ioc,
4724 Mpi2EventDataIrOperationStatus_t *event_data)
4725{
4726 char *reason_str = NULL;
4727
4728 switch (event_data->RAIDOperation) {
4729 case MPI2_EVENT_IR_RAIDOP_RESYNC:
4730 reason_str = "resync";
4731 break;
4732 case MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION:
4733 reason_str = "online capacity expansion";
4734 break;
4735 case MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK:
4736 reason_str = "consistency check";
4737 break;
4738 default:
4739 reason_str = "unknown reason";
4740 break;
4741 }
4742
4743 printk(MPT2SAS_INFO_FMT "raid operational status: (%s)"
4744 "\thandle(0x%04x), percent complete(%d)\n",
4745 ioc->name, reason_str,
4746 le16_to_cpu(event_data->VolDevHandle),
4747 event_data->PercentComplete);
4748}
4749#endif
4750
4751/**
4752 * _scsih_sas_ir_operation_status_event - handle RAID operation events
4753 * @ioc: per adapter object
4754 * @VF_ID:
4755 * @event_data: event data payload
4756 * Context: user.
4757 *
4758 * Return nothing.
4759 */
4760static void
4761_scsih_sas_ir_operation_status_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4762 Mpi2EventDataIrOperationStatus_t *event_data)
4763{
4764#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4765 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4766 _scsih_sas_ir_operation_status_event_debug(ioc, event_data);
4767#endif
4768}
4769
4770/**
4771 * _scsih_task_set_full - handle task set full
4772 * @ioc: per adapter object
4773 * @event_data: event data payload
4774 * Context: user.
4775 *
4776 * Throttle back qdepth.
4777 */
4778static void
4779_scsih_task_set_full(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4780 Mpi2EventDataTaskSetFull_t *event_data)
4781{
4782 unsigned long flags;
4783 struct _sas_device *sas_device;
4784 static struct _raid_device *raid_device;
4785 struct scsi_device *sdev;
4786 int depth;
4787 u16 current_depth;
4788 u16 handle;
4789 int id, channel;
4790 u64 sas_address;
4791
4792 current_depth = le16_to_cpu(event_data->CurrentDepth);
4793 handle = le16_to_cpu(event_data->DevHandle);
4794 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4795 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4796 if (!sas_device) {
4797 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4798 return;
4799 }
4800 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4801 id = sas_device->id;
4802 channel = sas_device->channel;
4803 sas_address = sas_device->sas_address;
4804
4805 /* if hidden raid component, then change to volume characteristics */
4806 if (sas_device->hidden_raid_component && sas_device->volume_handle) {
4807 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4808 raid_device = _scsih_raid_device_find_by_handle(
4809 ioc, sas_device->volume_handle);
4810 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4811 if (raid_device) {
4812 id = raid_device->id;
4813 channel = raid_device->channel;
4814 handle = raid_device->handle;
4815 sas_address = raid_device->wwid;
4816 }
4817 }
4818
4819 if (ioc->logging_level & MPT_DEBUG_TASK_SET_FULL)
4820 starget_printk(KERN_DEBUG, sas_device->starget, "task set "
4821 "full: handle(0x%04x), sas_addr(0x%016llx), depth(%d)\n",
4822 handle, (unsigned long long)sas_address, current_depth);
4823
4824 shost_for_each_device(sdev, ioc->shost) {
4825 if (sdev->id == id && sdev->channel == channel) {
4826 if (current_depth > sdev->queue_depth) {
4827 if (ioc->logging_level &
4828 MPT_DEBUG_TASK_SET_FULL)
4829 sdev_printk(KERN_INFO, sdev, "strange "
4830 "observation, the queue depth is"
4831 " (%d) meanwhile fw queue depth "
4832 "is (%d)\n", sdev->queue_depth,
4833 current_depth);
4834 continue;
4835 }
4836 depth = scsi_track_queue_full(sdev,
4837 current_depth - 1);
4838 if (depth > 0)
4839 sdev_printk(KERN_INFO, sdev, "Queue depth "
4840 "reduced to (%d)\n", depth);
4841 else if (depth < 0)
4842 sdev_printk(KERN_INFO, sdev, "Tagged Command "
4843 "Queueing is being disabled\n");
4844 else if (depth == 0)
4845 if (ioc->logging_level &
4846 MPT_DEBUG_TASK_SET_FULL)
4847 sdev_printk(KERN_INFO, sdev,
4848 "Queue depth not changed yet\n");
4849 }
4850 }
4851}
4852
4853/**
4854 * _scsih_mark_responding_sas_device - mark a sas_devices as responding
4855 * @ioc: per adapter object
4856 * @sas_address: sas address
4857 * @slot: enclosure slot id
4858 * @handle: device handle
4859 *
4860 * After host reset, find out whether devices are still responding.
4861 * Used in _scsi_remove_unresponsive_sas_devices.
4862 *
4863 * Return nothing.
4864 */
4865static void
4866_scsih_mark_responding_sas_device(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
4867 u16 slot, u16 handle)
4868{
4869 struct MPT2SAS_TARGET *sas_target_priv_data;
4870 struct scsi_target *starget;
4871 struct _sas_device *sas_device;
4872 unsigned long flags;
4873
4874 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4875 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
4876 if (sas_device->sas_address == sas_address &&
4877 sas_device->slot == slot && sas_device->starget) {
4878 sas_device->responding = 1;
4879 starget_printk(KERN_INFO, sas_device->starget,
4880 "handle(0x%04x), sas_addr(0x%016llx), enclosure "
4881 "logical id(0x%016llx), slot(%d)\n", handle,
4882 (unsigned long long)sas_device->sas_address,
4883 (unsigned long long)
4884 sas_device->enclosure_logical_id,
4885 sas_device->slot);
4886 if (sas_device->handle == handle)
4887 goto out;
4888 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
4889 sas_device->handle);
4890 sas_device->handle = handle;
4891 starget = sas_device->starget;
4892 sas_target_priv_data = starget->hostdata;
4893 sas_target_priv_data->handle = handle;
4894 goto out;
4895 }
4896 }
4897 out:
4898 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4899}
4900
4901/**
4902 * _scsih_search_responding_sas_devices -
4903 * @ioc: per adapter object
4904 *
4905 * After host reset, find out whether devices are still responding.
4906 * If not remove.
4907 *
4908 * Return nothing.
4909 */
4910static void
4911_scsih_search_responding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
4912{
4913 Mpi2SasDevicePage0_t sas_device_pg0;
4914 Mpi2ConfigReply_t mpi_reply;
4915 u16 ioc_status;
4916 __le64 sas_address;
4917 u16 handle;
4918 u32 device_info;
4919 u16 slot;
4920
4921 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
4922
4923 if (list_empty(&ioc->sas_device_list))
4924 return;
4925
4926 handle = 0xFFFF;
4927 while (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
4928 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
4929 handle))) {
4930 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4931 MPI2_IOCSTATUS_MASK;
4932 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
4933 break;
4934 handle = le16_to_cpu(sas_device_pg0.DevHandle);
4935 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
4936 if (!(_scsih_is_end_device(device_info)))
4937 continue;
4938 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4939 slot = le16_to_cpu(sas_device_pg0.Slot);
4940 _scsih_mark_responding_sas_device(ioc, sas_address, slot,
4941 handle);
4942 }
4943}
4944
4945/**
4946 * _scsih_mark_responding_raid_device - mark a raid_device as responding
4947 * @ioc: per adapter object
4948 * @wwid: world wide identifier for raid volume
4949 * @handle: device handle
4950 *
4951 * After host reset, find out whether devices are still responding.
4952 * Used in _scsi_remove_unresponsive_raid_devices.
4953 *
4954 * Return nothing.
4955 */
4956static void
4957_scsih_mark_responding_raid_device(struct MPT2SAS_ADAPTER *ioc, u64 wwid,
4958 u16 handle)
4959{
4960 struct MPT2SAS_TARGET *sas_target_priv_data;
4961 struct scsi_target *starget;
4962 struct _raid_device *raid_device;
4963 unsigned long flags;
4964
4965 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4966 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
4967 if (raid_device->wwid == wwid && raid_device->starget) {
4968 raid_device->responding = 1;
4969 starget_printk(KERN_INFO, raid_device->starget,
4970 "handle(0x%04x), wwid(0x%016llx)\n", handle,
4971 (unsigned long long)raid_device->wwid);
4972 if (raid_device->handle == handle)
4973 goto out;
4974 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
4975 raid_device->handle);
4976 raid_device->handle = handle;
4977 starget = raid_device->starget;
4978 sas_target_priv_data = starget->hostdata;
4979 sas_target_priv_data->handle = handle;
4980 goto out;
4981 }
4982 }
4983 out:
4984 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4985}
4986
4987/**
4988 * _scsih_search_responding_raid_devices -
4989 * @ioc: per adapter object
4990 *
4991 * After host reset, find out whether devices are still responding.
4992 * If not remove.
4993 *
4994 * Return nothing.
4995 */
4996static void
4997_scsih_search_responding_raid_devices(struct MPT2SAS_ADAPTER *ioc)
4998{
4999 Mpi2RaidVolPage1_t volume_pg1;
5000 Mpi2ConfigReply_t mpi_reply;
5001 u16 ioc_status;
5002 u16 handle;
5003
5004 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
5005
5006 if (list_empty(&ioc->raid_device_list))
5007 return;
5008
5009 handle = 0xFFFF;
5010 while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
5011 &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
5012 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5013 MPI2_IOCSTATUS_MASK;
5014 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
5015 break;
5016 handle = le16_to_cpu(volume_pg1.DevHandle);
5017 _scsih_mark_responding_raid_device(ioc,
5018 le64_to_cpu(volume_pg1.WWID), handle);
5019 }
5020}
5021
5022/**
5023 * _scsih_mark_responding_expander - mark a expander as responding
5024 * @ioc: per adapter object
5025 * @sas_address: sas address
5026 * @handle:
5027 *
5028 * After host reset, find out whether devices are still responding.
5029 * Used in _scsi_remove_unresponsive_expanders.
5030 *
5031 * Return nothing.
5032 */
5033static void
5034_scsih_mark_responding_expander(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
5035 u16 handle)
5036{
5037 struct _sas_node *sas_expander;
5038 unsigned long flags;
5039
5040 spin_lock_irqsave(&ioc->sas_node_lock, flags);
5041 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
5042 if (sas_expander->sas_address == sas_address) {
5043 sas_expander->responding = 1;
5044 if (sas_expander->handle != handle) {
5045 printk(KERN_INFO "old handle(0x%04x)\n",
5046 sas_expander->handle);
5047 sas_expander->handle = handle;
5048 }
5049 goto out;
5050 }
5051 }
5052 out:
5053 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
5054}
5055
5056/**
5057 * _scsih_search_responding_expanders -
5058 * @ioc: per adapter object
5059 *
5060 * After host reset, find out whether devices are still responding.
5061 * If not remove.
5062 *
5063 * Return nothing.
5064 */
5065static void
5066_scsih_search_responding_expanders(struct MPT2SAS_ADAPTER *ioc)
5067{
5068 Mpi2ExpanderPage0_t expander_pg0;
5069 Mpi2ConfigReply_t mpi_reply;
5070 u16 ioc_status;
5071 __le64 sas_address;
5072 u16 handle;
5073
5074 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
5075
5076 if (list_empty(&ioc->sas_expander_list))
5077 return;
5078
5079 handle = 0xFFFF;
5080 while (!(mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
5081 MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
5082
5083 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5084 MPI2_IOCSTATUS_MASK;
5085 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
5086 break;
5087
5088 handle = le16_to_cpu(expander_pg0.DevHandle);
5089 sas_address = le64_to_cpu(expander_pg0.SASAddress);
5090 printk(KERN_INFO "\texpander present: handle(0x%04x), "
5091 "sas_addr(0x%016llx)\n", handle,
5092 (unsigned long long)sas_address);
5093 _scsih_mark_responding_expander(ioc, sas_address, handle);
5094 }
5095
5096}
5097
5098/**
5099 * _scsih_remove_unresponding_devices - removing unresponding devices
5100 * @ioc: per adapter object
5101 *
5102 * Return nothing.
5103 */
5104static void
5105_scsih_remove_unresponding_devices(struct MPT2SAS_ADAPTER *ioc)
5106{
5107 struct _sas_device *sas_device, *sas_device_next;
5108 struct _sas_node *sas_expander, *sas_expander_next;
5109 struct _raid_device *raid_device, *raid_device_next;
5110 unsigned long flags;
5111
5112 _scsih_search_responding_sas_devices(ioc);
5113 _scsih_search_responding_raid_devices(ioc);
5114 _scsih_search_responding_expanders(ioc);
5115
5116 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
5117 ioc->shost_recovery = 0;
5118 if (ioc->shost->shost_state == SHOST_RECOVERY) {
5119 printk(MPT2SAS_INFO_FMT "putting controller into "
5120 "SHOST_RUNNING\n", ioc->name);
5121 scsi_host_set_state(ioc->shost, SHOST_RUNNING);
5122 }
5123 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
5124
5125 list_for_each_entry_safe(sas_device, sas_device_next,
5126 &ioc->sas_device_list, list) {
5127 if (sas_device->responding) {
5128 sas_device->responding = 0;
5129 continue;
5130 }
5131 if (sas_device->starget)
5132 starget_printk(KERN_INFO, sas_device->starget,
5133 "removing: handle(0x%04x), sas_addr(0x%016llx), "
5134 "enclosure logical id(0x%016llx), slot(%d)\n",
5135 sas_device->handle,
5136 (unsigned long long)sas_device->sas_address,
5137 (unsigned long long)
5138 sas_device->enclosure_logical_id,
5139 sas_device->slot);
5140 _scsih_remove_device(ioc, sas_device->handle);
5141 }
5142
5143 list_for_each_entry_safe(raid_device, raid_device_next,
5144 &ioc->raid_device_list, list) {
5145 if (raid_device->responding) {
5146 raid_device->responding = 0;
5147 continue;
5148 }
5149 if (raid_device->starget) {
5150 starget_printk(KERN_INFO, raid_device->starget,
5151 "removing: handle(0x%04x), wwid(0x%016llx)\n",
5152 raid_device->handle,
5153 (unsigned long long)raid_device->wwid);
5154 scsi_remove_target(&raid_device->starget->dev);
5155 }
5156 _scsih_raid_device_remove(ioc, raid_device);
5157 }
5158
5159 list_for_each_entry_safe(sas_expander, sas_expander_next,
5160 &ioc->sas_expander_list, list) {
5161 if (sas_expander->responding) {
5162 sas_expander->responding = 0;
5163 continue;
5164 }
5165 printk("\tremoving expander: handle(0x%04x), "
5166 " sas_addr(0x%016llx)\n", sas_expander->handle,
5167 (unsigned long long)sas_expander->sas_address);
5168 _scsih_expander_remove(ioc, sas_expander->handle);
5169 }
5170}
5171
5172/**
5173 * _firmware_event_work - delayed task for processing firmware events
5174 * @ioc: per adapter object
5175 * @work: equal to the fw_event_work object
5176 * Context: user.
5177 *
5178 * Return nothing.
5179 */
5180static void
5181_firmware_event_work(struct work_struct *work)
5182{
5183 struct fw_event_work *fw_event = container_of(work,
6f92a7a0 5184 struct fw_event_work, work);
635374e7
EM		 5185 unsigned long flags;
5186 struct MPT2SAS_ADAPTER *ioc = fw_event->ioc;
5187
5188 /* This is invoked by calling _scsih_queue_rescan(). */
5189 if (fw_event->event == MPT2SAS_RESCAN_AFTER_HOST_RESET) {
5190 _scsih_fw_event_free(ioc, fw_event);
5191 _scsih_sas_host_refresh(ioc, 1);
5192 _scsih_remove_unresponding_devices(ioc);
5193 return;
5194 }
5195
5196 /* the queue is being flushed so ignore this event */
5197 spin_lock_irqsave(&ioc->fw_event_lock, flags);
5198 if (ioc->fw_events_off || ioc->remove_host) {
5199 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
5200 _scsih_fw_event_free(ioc, fw_event);
5201 return;
5202 }
5203 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
5204
5205 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
5206 if (ioc->shost_recovery) {
5207 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
5208 _scsih_fw_event_requeue(ioc, fw_event, 1000);
5209 return;
5210 }
5211 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
5212
5213 switch (fw_event->event) {
5214 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
5215 _scsih_sas_topology_change_event(ioc, fw_event->VF_ID,
5216 fw_event->event_data, fw_event);
5217 break;
5218 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
5219 _scsih_sas_device_status_change_event(ioc, fw_event->VF_ID,
5220 fw_event->event_data);
5221 break;
5222 case MPI2_EVENT_SAS_DISCOVERY:
5223 _scsih_sas_discovery_event(ioc, fw_event->VF_ID,
5224 fw_event->event_data);
5225 break;
5226 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
5227 _scsih_sas_broadcast_primative_event(ioc, fw_event->VF_ID,
5228 fw_event->event_data);
5229 break;
5230 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
5231 _scsih_sas_enclosure_dev_status_change_event(ioc,
5232 fw_event->VF_ID, fw_event->event_data);
5233 break;
5234 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
5235 _scsih_sas_ir_config_change_event(ioc, fw_event->VF_ID,
5236 fw_event->event_data);
5237 break;
5238 case MPI2_EVENT_IR_VOLUME:
5239 _scsih_sas_ir_volume_event(ioc, fw_event->VF_ID,
5240 fw_event->event_data);
5241 break;
5242 case MPI2_EVENT_IR_PHYSICAL_DISK:
5243 _scsih_sas_ir_physical_disk_event(ioc, fw_event->VF_ID,
5244 fw_event->event_data);
5245 break;
5246 case MPI2_EVENT_IR_OPERATION_STATUS:
5247 _scsih_sas_ir_operation_status_event(ioc, fw_event->VF_ID,
5248 fw_event->event_data);
5249 break;
5250 case MPI2_EVENT_TASK_SET_FULL:
5251 _scsih_task_set_full(ioc, fw_event->VF_ID,
5252 fw_event->event_data);
5253 break;
5254 }
5255 _scsih_fw_event_free(ioc, fw_event);
5256}
5257
5258/**
5259 * mpt2sas_scsih_event_callback - firmware event handler (called at ISR time)
5260 * @ioc: per adapter object
5261 * @VF_ID: virtual function id
5262 * @reply: reply message frame(lower 32bit addr)
5263 * Context: interrupt.
5264 *
5265 * This function merely adds a new work task into ioc->firmware_event_thread.
5266 * The tasks are worked from _firmware_event_work in user context.
5267 *
5268 * Return nothing.
5269 */
5270void
5271mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID, u32 reply)
5272{
5273 struct fw_event_work *fw_event;
5274 Mpi2EventNotificationReply_t *mpi_reply;
5275 unsigned long flags;
5276 u16 event;
5277
5278 /* events turned off due to host reset or driver unloading */
5279 spin_lock_irqsave(&ioc->fw_event_lock, flags);
5280 if (ioc->fw_events_off || ioc->remove_host) {
5281 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
5282 return;
5283 }
5284 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
5285
5286 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
5287 event = le16_to_cpu(mpi_reply->Event);
5288
5289 switch (event) {
5290 /* handle these */
5291 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
5292 {
5293 Mpi2EventDataSasBroadcastPrimitive_t *baen_data =
5294 (Mpi2EventDataSasBroadcastPrimitive_t *)
5295 mpi_reply->EventData;
5296
5297 if (baen_data->Primitive !=
5298 MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT ||
5299 ioc->broadcast_aen_busy)
5300 return;
5301 ioc->broadcast_aen_busy = 1;
5302 break;
5303 }
5304
5305 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
5306 _scsih_check_topo_delete_events(ioc,
5307 (Mpi2EventDataSasTopologyChangeList_t *)
5308 mpi_reply->EventData);
5309 break;
5310
5311 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
5312 case MPI2_EVENT_IR_OPERATION_STATUS:
5313 case MPI2_EVENT_SAS_DISCOVERY:
5314 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
5315 case MPI2_EVENT_IR_VOLUME:
5316 case MPI2_EVENT_IR_PHYSICAL_DISK:
5317 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
5318 case MPI2_EVENT_TASK_SET_FULL:
5319 break;
5320
5321 default: /* ignore the rest */
5322 return;
5323 }
5324
5325 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
5326 if (!fw_event) {
5327 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5328 ioc->name, __FILE__, __LINE__, __func__);
5329 return;
5330 }
5331 fw_event->event_data =
5332 kzalloc(mpi_reply->EventDataLength*4, GFP_ATOMIC);
5333 if (!fw_event->event_data) {
5334 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5335 ioc->name, __FILE__, __LINE__, __func__);
5336 kfree(fw_event);
5337 return;
5338 }
5339
5340 memcpy(fw_event->event_data, mpi_reply->EventData,
5341 mpi_reply->EventDataLength*4);
5342 fw_event->ioc = ioc;
5343 fw_event->VF_ID = VF_ID;
5344 fw_event->event = event;
5345 _scsih_fw_event_add(ioc, fw_event);
5346}
5347
5348/* shost template */
5349static struct scsi_host_template scsih_driver_template = {
5350 .module = THIS_MODULE,
5351 .name = "Fusion MPT SAS Host",
5352 .proc_name = MPT2SAS_DRIVER_NAME,
d5d135b3
EM		 5353 .queuecommand = _scsih_qcmd,
5354 .target_alloc = _scsih_target_alloc,
5355 .slave_alloc = _scsih_slave_alloc,
5356 .slave_configure = _scsih_slave_configure,
5357 .target_destroy = _scsih_target_destroy,
5358 .slave_destroy = _scsih_slave_destroy,
5359 .change_queue_depth = _scsih_change_queue_depth,
5360 .change_queue_type = _scsih_change_queue_type,
5361 .eh_abort_handler = _scsih_abort,
5362 .eh_device_reset_handler = _scsih_dev_reset,
5363 .eh_target_reset_handler = _scsih_target_reset,
5364 .eh_host_reset_handler = _scsih_host_reset,
5365 .bios_param = _scsih_bios_param,
635374e7
EM		 5366 .can_queue = 1,
5367 .this_id = -1,
5368 .sg_tablesize = MPT2SAS_SG_DEPTH,
5369 .max_sectors = 8192,
5370 .cmd_per_lun = 7,
5371 .use_clustering = ENABLE_CLUSTERING,
5372 .shost_attrs = mpt2sas_host_attrs,
5373 .sdev_attrs = mpt2sas_dev_attrs,
5374};
5375
5376/**
5377 * _scsih_expander_node_remove - removing expander device from list.
5378 * @ioc: per adapter object
5379 * @sas_expander: the sas_device object
5380 * Context: Calling function should acquire ioc->sas_node_lock.
5381 *
5382 * Removing object and freeing associated memory from the
5383 * ioc->sas_expander_list.
5384 *
5385 * Return nothing.
5386 */
5387static void
5388_scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
5389 struct _sas_node *sas_expander)
5390{
5391 struct _sas_port *mpt2sas_port;
5392 struct _sas_device *sas_device;
5393 struct _sas_node *expander_sibling;
5394 unsigned long flags;
5395
5396 if (!sas_expander)
5397 return;
5398
5399 /* remove sibling ports attached to this expander */
5400 retry_device_search:
5401 list_for_each_entry(mpt2sas_port,
5402 &sas_expander->sas_port_list, port_list) {
5403 if (mpt2sas_port->remote_identify.device_type ==
5404 SAS_END_DEVICE) {
5405 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5406 sas_device =
5407 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
5408 mpt2sas_port->remote_identify.sas_address);
5409 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5410 if (!sas_device)
5411 continue;
5412 _scsih_remove_device(ioc, sas_device->handle);
5413 goto retry_device_search;
5414 }
5415 }
5416
5417 retry_expander_search:
5418 list_for_each_entry(mpt2sas_port,
5419 &sas_expander->sas_port_list, port_list) {
5420
5421 if (mpt2sas_port->remote_identify.device_type ==
5422 MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER ||
5423 mpt2sas_port->remote_identify.device_type ==
5424 MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) {
5425
5426 spin_lock_irqsave(&ioc->sas_node_lock, flags);
5427 expander_sibling =
5428 mpt2sas_scsih_expander_find_by_sas_address(
5429 ioc, mpt2sas_port->remote_identify.sas_address);
5430 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
5431 if (!expander_sibling)
5432 continue;
5433 _scsih_expander_remove(ioc, expander_sibling->handle);
5434 goto retry_expander_search;
5435 }
5436 }
5437
5438 mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
5439 sas_expander->parent_handle);
5440
5441 printk(MPT2SAS_INFO_FMT "expander_remove: handle"
5442 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name,
5443 sas_expander->handle, (unsigned long long)
5444 sas_expander->sas_address);
5445
5446 list_del(&sas_expander->list);
5447 kfree(sas_expander->phy);
5448 kfree(sas_expander);
5449}
5450
5451/**
d5d135b3 5452 * _scsih_remove - detach and remove add host
635374e7
EM		 5453 * @pdev: PCI device struct
5454 *
5455 * Return nothing.
5456 */
5457static void __devexit
d5d135b3 5458_scsih_remove(struct pci_dev *pdev)
635374e7
EM		 5459{
5460 struct Scsi_Host *shost = pci_get_drvdata(pdev);
5461 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
5462 struct _sas_port *mpt2sas_port;
5463 struct _sas_device *sas_device;
5464 struct _sas_node *expander_sibling;
5465 struct workqueue_struct *wq;
5466 unsigned long flags;
5467
5468 ioc->remove_host = 1;
5469 _scsih_fw_event_off(ioc);
5470
5471 spin_lock_irqsave(&ioc->fw_event_lock, flags);
5472 wq = ioc->firmware_event_thread;
5473 ioc->firmware_event_thread = NULL;
5474 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
5475 if (wq)
5476 destroy_workqueue(wq);
5477
5478 /* free ports attached to the sas_host */
5479 retry_again:
5480 list_for_each_entry(mpt2sas_port,
5481 &ioc->sas_hba.sas_port_list, port_list) {
5482 if (mpt2sas_port->remote_identify.device_type ==
5483 SAS_END_DEVICE) {
5484 sas_device =
5485 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
5486 mpt2sas_port->remote_identify.sas_address);
5487 if (sas_device) {
5488 _scsih_remove_device(ioc, sas_device->handle);
5489 goto retry_again;
5490 }
5491 } else {
5492 expander_sibling =
5493 mpt2sas_scsih_expander_find_by_sas_address(ioc,
5494 mpt2sas_port->remote_identify.sas_address);
5495 if (expander_sibling) {
5496 _scsih_expander_remove(ioc,
5497 expander_sibling->handle);
5498 goto retry_again;
5499 }
5500 }
5501 }
5502
5503 /* free phys attached to the sas_host */
5504 if (ioc->sas_hba.num_phys) {
5505 kfree(ioc->sas_hba.phy);
5506 ioc->sas_hba.phy = NULL;
5507 ioc->sas_hba.num_phys = 0;
5508 }
5509
5510 sas_remove_host(shost);
5511 mpt2sas_base_detach(ioc);
5512 list_del(&ioc->list);
5513 scsi_remove_host(shost);
5514 scsi_host_put(shost);
5515}
5516
5517/**
5518 * _scsih_probe_boot_devices - reports 1st device
5519 * @ioc: per adapter object
5520 *
5521 * If specified in bios page 2, this routine reports the 1st
5522 * device scsi-ml or sas transport for persistent boot device
5523 * purposes. Please refer to function _scsih_determine_boot_device()
5524 */
5525static void
5526_scsih_probe_boot_devices(struct MPT2SAS_ADAPTER *ioc)
5527{
5528 u8 is_raid;
5529 void *device;
5530 struct _sas_device *sas_device;
5531 struct _raid_device *raid_device;
5532 u16 handle, parent_handle;
5533 u64 sas_address;
5534 unsigned long flags;
5535 int rc;
5536
5537 device = NULL;
5538 if (ioc->req_boot_device.device) {
5539 device = ioc->req_boot_device.device;
5540 is_raid = ioc->req_boot_device.is_raid;
5541 } else if (ioc->req_alt_boot_device.device) {
5542 device = ioc->req_alt_boot_device.device;
5543 is_raid = ioc->req_alt_boot_device.is_raid;
5544 } else if (ioc->current_boot_device.device) {
5545 device = ioc->current_boot_device.device;
5546 is_raid = ioc->current_boot_device.is_raid;
5547 }
5548
5549 if (!device)
5550 return;
5551
5552 if (is_raid) {
5553 raid_device = device;
5554 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
5555 raid_device->id, 0);
5556 if (rc)
5557 _scsih_raid_device_remove(ioc, raid_device);
5558 } else {
5559 sas_device = device;
5560 handle = sas_device->handle;
5561 parent_handle = sas_device->parent_handle;
5562 sas_address = sas_device->sas_address;
5563 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5564 list_move_tail(&sas_device->list, &ioc->sas_device_list);
5565 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5566 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
5567 sas_device->parent_handle)) {
5568 _scsih_sas_device_remove(ioc, sas_device);
5569 } else if (!sas_device->starget) {
5570 mpt2sas_transport_port_remove(ioc, sas_address,
5571 parent_handle);
5572 _scsih_sas_device_remove(ioc, sas_device);
5573 }
5574 }
5575}
5576
5577/**
5578 * _scsih_probe_raid - reporting raid volumes to scsi-ml
5579 * @ioc: per adapter object
5580 *
5581 * Called during initial loading of the driver.
5582 */
5583static void
5584_scsih_probe_raid(struct MPT2SAS_ADAPTER *ioc)
5585{
5586 struct _raid_device *raid_device, *raid_next;
5587 int rc;
5588
5589 list_for_each_entry_safe(raid_device, raid_next,
5590 &ioc->raid_device_list, list) {
5591 if (raid_device->starget)
5592 continue;
5593 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
5594 raid_device->id, 0);
5595 if (rc)
5596 _scsih_raid_device_remove(ioc, raid_device);
5597 }
5598}
5599
5600/**
5601 * _scsih_probe_sas - reporting raid volumes to sas transport
5602 * @ioc: per adapter object
5603 *
5604 * Called during initial loading of the driver.
5605 */
5606static void
5607_scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc)
5608{
5609 struct _sas_device *sas_device, *next;
5610 unsigned long flags;
5611 u16 handle, parent_handle;
5612 u64 sas_address;
5613
5614 /* SAS Device List */
5615 list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list,
5616 list) {
5617 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5618 list_move_tail(&sas_device->list, &ioc->sas_device_list);
5619 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5620
5621 handle = sas_device->handle;
5622 parent_handle = sas_device->parent_handle;
5623 sas_address = sas_device->sas_address;
5624 if (!mpt2sas_transport_port_add(ioc, handle, parent_handle)) {
5625 _scsih_sas_device_remove(ioc, sas_device);
5626 } else if (!sas_device->starget) {
5627 mpt2sas_transport_port_remove(ioc, sas_address,
5628 parent_handle);
5629 _scsih_sas_device_remove(ioc, sas_device);
5630 }
5631 }
5632}
5633
5634/**
5635 * _scsih_probe_devices - probing for devices
5636 * @ioc: per adapter object
5637 *
5638 * Called during initial loading of the driver.
5639 */
5640static void
5641_scsih_probe_devices(struct MPT2SAS_ADAPTER *ioc)
5642{
5643 u16 volume_mapping_flags =
5644 le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) &
5645 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
5646
5647 if (!(ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR))
5648 return; /* return when IOC doesn't support initiator mode */
5649
5650 _scsih_probe_boot_devices(ioc);
5651
5652 if (ioc->ir_firmware) {
5653 if ((volume_mapping_flags &
5654 MPI2_IOCPAGE8_IRFLAGS_HIGH_VOLUME_MAPPING)) {
5655 _scsih_probe_sas(ioc);
5656 _scsih_probe_raid(ioc);
5657 } else {
5658 _scsih_probe_raid(ioc);
5659 _scsih_probe_sas(ioc);
5660 }
5661 } else
5662 _scsih_probe_sas(ioc);
5663}
5664
5665/**
d5d135b3 5666 * _scsih_probe - attach and add scsi host
635374e7
EM		 5667 * @pdev: PCI device struct
5668 * @id: pci device id
5669 *
5670 * Returns 0 success, anything else error.
5671 */
5672static int
d5d135b3 5673_scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
635374e7
EM		 5674{
5675 struct MPT2SAS_ADAPTER *ioc;
5676 struct Scsi_Host *shost;
5677
5678 shost = scsi_host_alloc(&scsih_driver_template,
5679 sizeof(struct MPT2SAS_ADAPTER));
5680 if (!shost)
5681 return -ENODEV;
5682
5683 /* init local params */
5684 ioc = shost_priv(shost);
5685 memset(ioc, 0, sizeof(struct MPT2SAS_ADAPTER));
5686 INIT_LIST_HEAD(&ioc->list);
ba33fadf 5687 list_add_tail(&ioc->list, &mpt2sas_ioc_list);
635374e7
EM		 5688 ioc->shost = shost;
5689 ioc->id = mpt_ids++;
5690 sprintf(ioc->name, "%s%d", MPT2SAS_DRIVER_NAME, ioc->id);
5691 ioc->pdev = pdev;
5692 ioc->scsi_io_cb_idx = scsi_io_cb_idx;
5693 ioc->tm_cb_idx = tm_cb_idx;
5694 ioc->ctl_cb_idx = ctl_cb_idx;
5695 ioc->base_cb_idx = base_cb_idx;
5696 ioc->transport_cb_idx = transport_cb_idx;
5697 ioc->config_cb_idx = config_cb_idx;
5698 ioc->logging_level = logging_level;
5699 /* misc semaphores and spin locks */
5700 spin_lock_init(&ioc->ioc_reset_in_progress_lock);
5701 spin_lock_init(&ioc->scsi_lookup_lock);
5702 spin_lock_init(&ioc->sas_device_lock);
5703 spin_lock_init(&ioc->sas_node_lock);
5704 spin_lock_init(&ioc->fw_event_lock);
5705 spin_lock_init(&ioc->raid_device_lock);
5706
5707 INIT_LIST_HEAD(&ioc->sas_device_list);
5708 INIT_LIST_HEAD(&ioc->sas_device_init_list);
5709 INIT_LIST_HEAD(&ioc->sas_expander_list);
5710 INIT_LIST_HEAD(&ioc->fw_event_list);
5711 INIT_LIST_HEAD(&ioc->raid_device_list);
5712 INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list);
5713
5714 /* init shost parameters */
5715 shost->max_cmd_len = 16;
5716 shost->max_lun = max_lun;
5717 shost->transportt = mpt2sas_transport_template;
5718 shost->unique_id = ioc->id;
5719
5720 if ((scsi_add_host(shost, &pdev->dev))) {
5721 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5722 ioc->name, __FILE__, __LINE__, __func__);
5723 list_del(&ioc->list);
5724 goto out_add_shost_fail;
5725 }
5726
3c621b3e
EM		 5727 scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
5728 | SHOST_DIF_TYPE3_PROTECTION);
5729
635374e7
EM		 5730 /* event thread */
5731 snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
5732 "fw_event%d", ioc->id);
5733 ioc->firmware_event_thread = create_singlethread_workqueue(
5734 ioc->firmware_event_name);
5735 if (!ioc->firmware_event_thread) {
5736 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5737 ioc->name, __FILE__, __LINE__, __func__);
5738 goto out_thread_fail;
5739 }
5740
5741 ioc->wait_for_port_enable_to_complete = 1;
5742 if ((mpt2sas_base_attach(ioc))) {
5743 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5744 ioc->name, __FILE__, __LINE__, __func__);
5745 goto out_attach_fail;
5746 }
5747
5748 ioc->wait_for_port_enable_to_complete = 0;
5749 _scsih_probe_devices(ioc);
5750 return 0;
5751
5752 out_attach_fail:
5753 destroy_workqueue(ioc->firmware_event_thread);
5754 out_thread_fail:
5755 list_del(&ioc->list);
5756 scsi_remove_host(shost);
5757 out_add_shost_fail:
5758 return -ENODEV;
5759}
5760
5761#ifdef CONFIG_PM
5762/**
d5d135b3 5763 * _scsih_suspend - power management suspend main entry point
635374e7
EM		 5764 * @pdev: PCI device struct
5765 * @state: PM state change to (usually PCI_D3)
5766 *
5767 * Returns 0 success, anything else error.
5768 */
5769static int
d5d135b3 5770_scsih_suspend(struct pci_dev *pdev, pm_message_t state)
635374e7
EM		 5771{
5772 struct Scsi_Host *shost = pci_get_drvdata(pdev);
5773 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
5774 u32 device_state;
5775
5776 flush_scheduled_work();
5777 scsi_block_requests(shost);
5778 device_state = pci_choose_state(pdev, state);
5779 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, entering "
5780 "operating state [D%d]\n", ioc->name, pdev,
5781 pci_name(pdev), device_state);
5782
5783 mpt2sas_base_free_resources(ioc);
5784 pci_save_state(pdev);
5785 pci_disable_device(pdev);
5786 pci_set_power_state(pdev, device_state);
5787 return 0;
5788}
5789
5790/**
d5d135b3 5791 * _scsih_resume - power management resume main entry point
635374e7
EM		 5792 * @pdev: PCI device struct
5793 *
5794 * Returns 0 success, anything else error.
5795 */
5796static int
d5d135b3 5797_scsih_resume(struct pci_dev *pdev)
635374e7
EM		 5798{
5799 struct Scsi_Host *shost = pci_get_drvdata(pdev);
5800 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
5801 u32 device_state = pdev->current_state;
5802 int r;
5803
5804 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, previous "
5805 "operating state [D%d]\n", ioc->name, pdev,
5806 pci_name(pdev), device_state);
5807
5808 pci_set_power_state(pdev, PCI_D0);
5809 pci_enable_wake(pdev, PCI_D0, 0);
5810 pci_restore_state(pdev);
5811 ioc->pdev = pdev;
5812 r = mpt2sas_base_map_resources(ioc);
5813 if (r)
5814 return r;
5815
5816 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, SOFT_RESET);
5817 scsi_unblock_requests(shost);
5818 return 0;
5819}
5820#endif /* CONFIG_PM */
5821
5822
5823static struct pci_driver scsih_driver = {
5824 .name = MPT2SAS_DRIVER_NAME,
5825 .id_table = scsih_pci_table,
d5d135b3
EM		 5826 .probe = _scsih_probe,
5827 .remove = __devexit_p(_scsih_remove),
635374e7 5828#ifdef CONFIG_PM
d5d135b3
EM		 5829 .suspend = _scsih_suspend,
5830 .resume = _scsih_resume,
635374e7
EM		 5831#endif
5832};
5833
5834
5835/**
d5d135b3 5836 * _scsih_init - main entry point for this driver.
635374e7
EM		 5837 *
5838 * Returns 0 success, anything else error.
5839 */
5840static int __init
d5d135b3 5841_scsih_init(void)
635374e7
EM		 5842{
5843 int error;
5844
5845 mpt_ids = 0;
5846 printk(KERN_INFO "%s version %s loaded\n", MPT2SAS_DRIVER_NAME,
5847 MPT2SAS_DRIVER_VERSION);
5848
5849 mpt2sas_transport_template =
5850 sas_attach_transport(&mpt2sas_transport_functions);
5851 if (!mpt2sas_transport_template)
5852 return -ENODEV;
5853
5854 mpt2sas_base_initialize_callback_handler();
5855
5856 /* queuecommand callback hander */
d5d135b3 5857 scsi_io_cb_idx = mpt2sas_base_register_callback_handler(_scsih_io_done);
635374e7
EM		 5858
5859 /* task managment callback handler */
d5d135b3 5860 tm_cb_idx = mpt2sas_base_register_callback_handler(_scsih_tm_done);
635374e7
EM		 5861
5862 /* base internal commands callback handler */
5863 base_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_base_done);
5864
5865 /* transport internal commands callback handler */
5866 transport_cb_idx = mpt2sas_base_register_callback_handler(
5867 mpt2sas_transport_done);
5868
5869 /* configuration page API internal commands callback handler */
5870 config_cb_idx = mpt2sas_base_register_callback_handler(
5871 mpt2sas_config_done);
5872
5873 /* ctl module callback handler */
5874 ctl_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_ctl_done);
5875
5876 mpt2sas_ctl_init();
5877
5878 error = pci_register_driver(&scsih_driver);
5879 if (error)
5880 sas_release_transport(mpt2sas_transport_template);
5881
5882 return error;
5883}
5884
5885/**
d5d135b3 5886 * _scsih_exit - exit point for this driver (when it is a module).
635374e7
EM		 5887 *
5888 * Returns 0 success, anything else error.
5889 */
5890static void __exit
d5d135b3 5891_scsih_exit(void)
635374e7
EM		 5892{
5893 printk(KERN_INFO "mpt2sas version %s unloading\n",
5894 MPT2SAS_DRIVER_VERSION);
5895
5896 pci_unregister_driver(&scsih_driver);
5897
5898 sas_release_transport(mpt2sas_transport_template);
5899 mpt2sas_base_release_callback_handler(scsi_io_cb_idx);
5900 mpt2sas_base_release_callback_handler(tm_cb_idx);
5901 mpt2sas_base_release_callback_handler(base_cb_idx);
5902 mpt2sas_base_release_callback_handler(transport_cb_idx);
5903 mpt2sas_base_release_callback_handler(config_cb_idx);
5904 mpt2sas_base_release_callback_handler(ctl_cb_idx);
5905
5906 mpt2sas_ctl_exit();
5907}
5908
d5d135b3
EM		 5909module_init(_scsih_init);
5910module_exit(_scsih_exit);
Linux 6.x block layer and io_uring tree(s)