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
58 MODULE_AUTHOR(MPT2SAS_AUTHOR);
59 MODULE_DESCRIPTION(MPT2SAS_DESCRIPTION);
60 MODULE_LICENSE("GPL");
61 MODULE_VERSION(MPT2SAS_DRIVER_VERSION);
62
63 #define RAID_CHANNEL 1
64
65 /* forward proto's */
66 static void _scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
67 struct _sas_node *sas_expander);
68 static void _firmware_event_work(struct work_struct *work);
69
70 /* global parameters */
71 LIST_HEAD(mpt2sas_ioc_list);
72
73 /* local parameters */
74 static u8 scsi_io_cb_idx = -1;
75 static u8 tm_cb_idx = -1;
76 static u8 ctl_cb_idx = -1;
77 static u8 base_cb_idx = -1;
78 static u8 transport_cb_idx = -1;
79 static u8 config_cb_idx = -1;
80 static int mpt_ids;
81
82 /* command line options */
83 static u32 logging_level;
84 MODULE_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)
89 static int max_lun = MPT2SAS_MAX_LUN;
90 module_param(max_lun, int, 0);
91 MODULE_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 */
99 struct sense_info {
100 u8 skey;
101 u8 asc;
102 u8 ascq;
103 };
104
105
106 /**
107 * struct fw_event_work - firmware event struct
108 * @list: link list framework
109 * @work: work object (ioc->fault_reset_work_q)
110 * @ioc: per adapter object
111 * @VF_ID: virtual function id
112 * @host_reset_handling: handling events during host reset
113 * @ignore: flag meaning this event has been marked to ignore
114 * @event: firmware event MPI2_EVENT_XXX defined in mpt2_ioc.h
115 * @event_data: reply event data payload follows
116 *
117 * This object stored on ioc->fw_event_list.
118 */
119 struct fw_event_work {
120 struct list_head list;
121 struct work_struct work;
122 struct MPT2SAS_ADAPTER *ioc;
123 u8 VF_ID;
124 u8 host_reset_handling;
125 u8 ignore;
126 u16 event;
127 void *event_data;
128 };
129
130 /**
131 * struct _scsi_io_transfer - scsi io transfer
132 * @handle: sas device handle (assigned by firmware)
133 * @is_raid: flag set for hidden raid components
134 * @dir: DMA_TO_DEVICE, DMA_FROM_DEVICE,
135 * @data_length: data transfer length
136 * @data_dma: dma pointer to data
137 * @sense: sense data
138 * @lun: lun number
139 * @cdb_length: cdb length
140 * @cdb: cdb contents
141 * @valid_reply: flag set for reply message
142 * @timeout: timeout for this command
143 * @sense_length: sense length
144 * @ioc_status: ioc status
145 * @scsi_state: scsi state
146 * @scsi_status: scsi staus
147 * @log_info: log information
148 * @transfer_length: data length transfer when there is a reply message
149 *
150 * Used for sending internal scsi commands to devices within this module.
151 * Refer to _scsi_send_scsi_io().
152 */
153 struct _scsi_io_transfer {
154 u16 handle;
155 u8 is_raid;
156 enum dma_data_direction dir;
157 u32 data_length;
158 dma_addr_t data_dma;
159 u8 sense[SCSI_SENSE_BUFFERSIZE];
160 u32 lun;
161 u8 cdb_length;
162 u8 cdb[32];
163 u8 timeout;
164 u8 valid_reply;
165 /* the following bits are only valid when 'valid_reply = 1' */
166 u32 sense_length;
167 u16 ioc_status;
168 u8 scsi_state;
169 u8 scsi_status;
170 u32 log_info;
171 u32 transfer_length;
172 };
173
174 /*
175 * The pci device ids are defined in mpi/mpi2_cnfg.h.
176 */
177 static struct pci_device_id scsih_pci_table[] = {
178 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004,
179 PCI_ANY_ID, PCI_ANY_ID },
180 /* Falcon ~ 2008*/
181 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2008,
182 PCI_ANY_ID, PCI_ANY_ID },
183 /* Liberator ~ 2108 */
184 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_1,
185 PCI_ANY_ID, PCI_ANY_ID },
186 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_2,
187 PCI_ANY_ID, PCI_ANY_ID },
188 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_3,
189 PCI_ANY_ID, PCI_ANY_ID },
190 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_1,
191 PCI_ANY_ID, PCI_ANY_ID },
192 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2,
193 PCI_ANY_ID, PCI_ANY_ID },
194 {0} /* Terminating entry */
195 };
196 MODULE_DEVICE_TABLE(pci, scsih_pci_table);
197
198 /**
199 * _scsih_set_debug_level - global setting of ioc->logging_level.
200 *
201 * Note: The logging levels are defined in mpt2sas_debug.h.
202 */
203 static int
204 _scsih_set_debug_level(const char *val, struct kernel_param *kp)
205 {
206 int ret = param_set_int(val, kp);
207 struct MPT2SAS_ADAPTER *ioc;
208
209 if (ret)
210 return ret;
211
212 printk(KERN_INFO "setting logging_level(0x%08x)\n", logging_level);
213 list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
214 ioc->logging_level = logging_level;
215 return 0;
216 }
217 module_param_call(logging_level, _scsih_set_debug_level, param_get_int,
218 &logging_level, 0644);
219
220 /**
221 * _scsih_srch_boot_sas_address - search based on sas_address
222 * @sas_address: sas address
223 * @boot_device: boot device object from bios page 2
224 *
225 * Returns 1 when there's a match, 0 means no match.
226 */
227 static inline int
228 _scsih_srch_boot_sas_address(u64 sas_address,
229 Mpi2BootDeviceSasWwid_t *boot_device)
230 {
231 return (sas_address == le64_to_cpu(boot_device->SASAddress)) ? 1 : 0;
232 }
233
234 /**
235 * _scsih_srch_boot_device_name - search based on device name
236 * @device_name: device name specified in INDENTIFY fram
237 * @boot_device: boot device object from bios page 2
238 *
239 * Returns 1 when there's a match, 0 means no match.
240 */
241 static inline int
242 _scsih_srch_boot_device_name(u64 device_name,
243 Mpi2BootDeviceDeviceName_t *boot_device)
244 {
245 return (device_name == le64_to_cpu(boot_device->DeviceName)) ? 1 : 0;
246 }
247
248 /**
249 * _scsih_srch_boot_encl_slot - search based on enclosure_logical_id/slot
250 * @enclosure_logical_id: enclosure logical id
251 * @slot_number: slot number
252 * @boot_device: boot device object from bios page 2
253 *
254 * Returns 1 when there's a match, 0 means no match.
255 */
256 static inline int
257 _scsih_srch_boot_encl_slot(u64 enclosure_logical_id, u16 slot_number,
258 Mpi2BootDeviceEnclosureSlot_t *boot_device)
259 {
260 return (enclosure_logical_id == le64_to_cpu(boot_device->
261 EnclosureLogicalID) && slot_number == le16_to_cpu(boot_device->
262 SlotNumber)) ? 1 : 0;
263 }
264
265 /**
266 * _scsih_is_boot_device - search for matching boot device.
267 * @sas_address: sas address
268 * @device_name: device name specified in INDENTIFY fram
269 * @enclosure_logical_id: enclosure logical id
270 * @slot_number: slot number
271 * @form: specifies boot device form
272 * @boot_device: boot device object from bios page 2
273 *
274 * Returns 1 when there's a match, 0 means no match.
275 */
276 static int
277 _scsih_is_boot_device(u64 sas_address, u64 device_name,
278 u64 enclosure_logical_id, u16 slot, u8 form,
279 Mpi2BiosPage2BootDevice_t *boot_device)
280 {
281 int rc = 0;
282
283 switch (form) {
284 case MPI2_BIOSPAGE2_FORM_SAS_WWID:
285 if (!sas_address)
286 break;
287 rc = _scsih_srch_boot_sas_address(
288 sas_address, &boot_device->SasWwid);
289 break;
290 case MPI2_BIOSPAGE2_FORM_ENCLOSURE_SLOT:
291 if (!enclosure_logical_id)
292 break;
293 rc = _scsih_srch_boot_encl_slot(
294 enclosure_logical_id,
295 slot, &boot_device->EnclosureSlot);
296 break;
297 case MPI2_BIOSPAGE2_FORM_DEVICE_NAME:
298 if (!device_name)
299 break;
300 rc = _scsih_srch_boot_device_name(
301 device_name, &boot_device->DeviceName);
302 break;
303 case MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED:
304 break;
305 }
306
307 return rc;
308 }
309
310 /**
311 * _scsih_determine_boot_device - determine boot device.
312 * @ioc: per adapter object
313 * @device: either sas_device or raid_device object
314 * @is_raid: [flag] 1 = raid object, 0 = sas object
315 *
316 * Determines whether this device should be first reported device to
317 * to scsi-ml or sas transport, this purpose is for persistant boot device.
318 * There are primary, alternate, and current entries in bios page 2. The order
319 * priority is primary, alternate, then current. This routine saves
320 * the corresponding device object and is_raid flag in the ioc object.
321 * The saved data to be used later in _scsih_probe_boot_devices().
322 */
323 static void
324 _scsih_determine_boot_device(struct MPT2SAS_ADAPTER *ioc,
325 void *device, u8 is_raid)
326 {
327 struct _sas_device *sas_device;
328 struct _raid_device *raid_device;
329 u64 sas_address;
330 u64 device_name;
331 u64 enclosure_logical_id;
332 u16 slot;
333
334 /* only process this function when driver loads */
335 if (!ioc->wait_for_port_enable_to_complete)
336 return;
337
338 if (!is_raid) {
339 sas_device = device;
340 sas_address = sas_device->sas_address;
341 device_name = sas_device->device_name;
342 enclosure_logical_id = sas_device->enclosure_logical_id;
343 slot = sas_device->slot;
344 } else {
345 raid_device = device;
346 sas_address = raid_device->wwid;
347 device_name = 0;
348 enclosure_logical_id = 0;
349 slot = 0;
350 }
351
352 if (!ioc->req_boot_device.device) {
353 if (_scsih_is_boot_device(sas_address, device_name,
354 enclosure_logical_id, slot,
355 (ioc->bios_pg2.ReqBootDeviceForm &
356 MPI2_BIOSPAGE2_FORM_MASK),
357 &ioc->bios_pg2.RequestedBootDevice)) {
358 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
359 "%s: req_boot_device(0x%016llx)\n",
360 ioc->name, __func__,
361 (unsigned long long)sas_address));
362 ioc->req_boot_device.device = device;
363 ioc->req_boot_device.is_raid = is_raid;
364 }
365 }
366
367 if (!ioc->req_alt_boot_device.device) {
368 if (_scsih_is_boot_device(sas_address, device_name,
369 enclosure_logical_id, slot,
370 (ioc->bios_pg2.ReqAltBootDeviceForm &
371 MPI2_BIOSPAGE2_FORM_MASK),
372 &ioc->bios_pg2.RequestedAltBootDevice)) {
373 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
374 "%s: req_alt_boot_device(0x%016llx)\n",
375 ioc->name, __func__,
376 (unsigned long long)sas_address));
377 ioc->req_alt_boot_device.device = device;
378 ioc->req_alt_boot_device.is_raid = is_raid;
379 }
380 }
381
382 if (!ioc->current_boot_device.device) {
383 if (_scsih_is_boot_device(sas_address, device_name,
384 enclosure_logical_id, slot,
385 (ioc->bios_pg2.CurrentBootDeviceForm &
386 MPI2_BIOSPAGE2_FORM_MASK),
387 &ioc->bios_pg2.CurrentBootDevice)) {
388 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
389 "%s: current_boot_device(0x%016llx)\n",
390 ioc->name, __func__,
391 (unsigned long long)sas_address));
392 ioc->current_boot_device.device = device;
393 ioc->current_boot_device.is_raid = is_raid;
394 }
395 }
396 }
397
398 /**
399 * mpt2sas_scsih_sas_device_find_by_sas_address - sas device search
400 * @ioc: per adapter object
401 * @sas_address: sas address
402 * Context: Calling function should acquire ioc->sas_device_lock
403 *
404 * This searches for sas_device based on sas_address, then return sas_device
405 * object.
406 */
407 struct _sas_device *
408 mpt2sas_scsih_sas_device_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
409 u64 sas_address)
410 {
411 struct _sas_device *sas_device, *r;
412
413 r = NULL;
414 /* check the sas_device_init_list */
415 list_for_each_entry(sas_device, &ioc->sas_device_init_list,
416 list) {
417 if (sas_device->sas_address != sas_address)
418 continue;
419 r = sas_device;
420 goto out;
421 }
422
423 /* then check the sas_device_list */
424 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
425 if (sas_device->sas_address != sas_address)
426 continue;
427 r = sas_device;
428 goto out;
429 }
430 out:
431 return r;
432 }
433
434 /**
435 * _scsih_sas_device_find_by_handle - sas device search
436 * @ioc: per adapter object
437 * @handle: sas device handle (assigned by firmware)
438 * Context: Calling function should acquire ioc->sas_device_lock
439 *
440 * This searches for sas_device based on sas_address, then return sas_device
441 * object.
442 */
443 static struct _sas_device *
444 _scsih_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
445 {
446 struct _sas_device *sas_device, *r;
447
448 r = NULL;
449 if (ioc->wait_for_port_enable_to_complete) {
450 list_for_each_entry(sas_device, &ioc->sas_device_init_list,
451 list) {
452 if (sas_device->handle != handle)
453 continue;
454 r = sas_device;
455 goto out;
456 }
457 } else {
458 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
459 if (sas_device->handle != handle)
460 continue;
461 r = sas_device;
462 goto out;
463 }
464 }
465
466 out:
467 return r;
468 }
469
470 /**
471 * _scsih_sas_device_remove - remove sas_device from list.
472 * @ioc: per adapter object
473 * @sas_device: the sas_device object
474 * Context: This function will acquire ioc->sas_device_lock.
475 *
476 * Removing object and freeing associated memory from the ioc->sas_device_list.
477 */
478 static void
479 _scsih_sas_device_remove(struct MPT2SAS_ADAPTER *ioc,
480 struct _sas_device *sas_device)
481 {
482 unsigned long flags;
483
484 spin_lock_irqsave(&ioc->sas_device_lock, flags);
485 list_del(&sas_device->list);
486 memset(sas_device, 0, sizeof(struct _sas_device));
487 kfree(sas_device);
488 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
489 }
490
491 /**
492 * _scsih_sas_device_add - insert sas_device to the list.
493 * @ioc: per adapter object
494 * @sas_device: the sas_device object
495 * Context: This function will acquire ioc->sas_device_lock.
496 *
497 * Adding new object to the ioc->sas_device_list.
498 */
499 static void
500 _scsih_sas_device_add(struct MPT2SAS_ADAPTER *ioc,
501 struct _sas_device *sas_device)
502 {
503 unsigned long flags;
504 u16 handle, parent_handle;
505 u64 sas_address;
506
507 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
508 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
509 sas_device->handle, (unsigned long long)sas_device->sas_address));
510
511 spin_lock_irqsave(&ioc->sas_device_lock, flags);
512 list_add_tail(&sas_device->list, &ioc->sas_device_list);
513 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
514
515 handle = sas_device->handle;
516 parent_handle = sas_device->parent_handle;
517 sas_address = sas_device->sas_address;
518 if (!mpt2sas_transport_port_add(ioc, handle, parent_handle))
519 _scsih_sas_device_remove(ioc, sas_device);
520 }
521
522 /**
523 * _scsih_sas_device_init_add - insert sas_device to the list.
524 * @ioc: per adapter object
525 * @sas_device: the sas_device object
526 * Context: This function will acquire ioc->sas_device_lock.
527 *
528 * Adding new object at driver load time to the ioc->sas_device_init_list.
529 */
530 static void
531 _scsih_sas_device_init_add(struct MPT2SAS_ADAPTER *ioc,
532 struct _sas_device *sas_device)
533 {
534 unsigned long flags;
535
536 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
537 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
538 sas_device->handle, (unsigned long long)sas_device->sas_address));
539
540 spin_lock_irqsave(&ioc->sas_device_lock, flags);
541 list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
542 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
543 _scsih_determine_boot_device(ioc, sas_device, 0);
544 }
545
546 /**
547 * mpt2sas_scsih_expander_find_by_handle - expander device search
548 * @ioc: per adapter object
549 * @handle: expander handle (assigned by firmware)
550 * Context: Calling function should acquire ioc->sas_device_lock
551 *
552 * This searches for expander device based on handle, then returns the
553 * sas_node object.
554 */
555 struct _sas_node *
556 mpt2sas_scsih_expander_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
557 {
558 struct _sas_node *sas_expander, *r;
559
560 r = NULL;
561 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
562 if (sas_expander->handle != handle)
563 continue;
564 r = sas_expander;
565 goto out;
566 }
567 out:
568 return r;
569 }
570
571 /**
572 * _scsih_raid_device_find_by_id - raid device search
573 * @ioc: per adapter object
574 * @id: sas device target id
575 * @channel: sas device channel
576 * Context: Calling function should acquire ioc->raid_device_lock
577 *
578 * This searches for raid_device based on target id, then return raid_device
579 * object.
580 */
581 static struct _raid_device *
582 _scsih_raid_device_find_by_id(struct MPT2SAS_ADAPTER *ioc, int id, int channel)
583 {
584 struct _raid_device *raid_device, *r;
585
586 r = NULL;
587 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
588 if (raid_device->id == id && raid_device->channel == channel) {
589 r = raid_device;
590 goto out;
591 }
592 }
593
594 out:
595 return r;
596 }
597
598 /**
599 * _scsih_raid_device_find_by_handle - raid device search
600 * @ioc: per adapter object
601 * @handle: sas device handle (assigned by firmware)
602 * Context: Calling function should acquire ioc->raid_device_lock
603 *
604 * This searches for raid_device based on handle, then return raid_device
605 * object.
606 */
607 static struct _raid_device *
608 _scsih_raid_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
609 {
610 struct _raid_device *raid_device, *r;
611
612 r = NULL;
613 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
614 if (raid_device->handle != handle)
615 continue;
616 r = raid_device;
617 goto out;
618 }
619
620 out:
621 return r;
622 }
623
624 /**
625 * _scsih_raid_device_find_by_wwid - raid device search
626 * @ioc: per adapter object
627 * @handle: sas device handle (assigned by firmware)
628 * Context: Calling function should acquire ioc->raid_device_lock
629 *
630 * This searches for raid_device based on wwid, then return raid_device
631 * object.
632 */
633 static struct _raid_device *
634 _scsih_raid_device_find_by_wwid(struct MPT2SAS_ADAPTER *ioc, u64 wwid)
635 {
636 struct _raid_device *raid_device, *r;
637
638 r = NULL;
639 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
640 if (raid_device->wwid != wwid)
641 continue;
642 r = raid_device;
643 goto out;
644 }
645
646 out:
647 return r;
648 }
649
650 /**
651 * _scsih_raid_device_add - add raid_device object
652 * @ioc: per adapter object
653 * @raid_device: raid_device object
654 *
655 * This is added to the raid_device_list link list.
656 */
657 static void
658 _scsih_raid_device_add(struct MPT2SAS_ADAPTER *ioc,
659 struct _raid_device *raid_device)
660 {
661 unsigned long flags;
662
663 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
664 "(0x%04x), wwid(0x%016llx)\n", ioc->name, __func__,
665 raid_device->handle, (unsigned long long)raid_device->wwid));
666
667 spin_lock_irqsave(&ioc->raid_device_lock, flags);
668 list_add_tail(&raid_device->list, &ioc->raid_device_list);
669 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
670 }
671
672 /**
673 * _scsih_raid_device_remove - delete raid_device object
674 * @ioc: per adapter object
675 * @raid_device: raid_device object
676 *
677 * This is removed from the raid_device_list link list.
678 */
679 static void
680 _scsih_raid_device_remove(struct MPT2SAS_ADAPTER *ioc,
681 struct _raid_device *raid_device)
682 {
683 unsigned long flags;
684
685 spin_lock_irqsave(&ioc->raid_device_lock, flags);
686 list_del(&raid_device->list);
687 memset(raid_device, 0, sizeof(struct _raid_device));
688 kfree(raid_device);
689 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
690 }
691
692 /**
693 * mpt2sas_scsih_expander_find_by_sas_address - expander device search
694 * @ioc: per adapter object
695 * @sas_address: sas address
696 * Context: Calling function should acquire ioc->sas_node_lock.
697 *
698 * This searches for expander device based on sas_address, then returns the
699 * sas_node object.
700 */
701 struct _sas_node *
702 mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
703 u64 sas_address)
704 {
705 struct _sas_node *sas_expander, *r;
706
707 r = NULL;
708 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
709 if (sas_expander->sas_address != sas_address)
710 continue;
711 r = sas_expander;
712 goto out;
713 }
714 out:
715 return r;
716 }
717
718 /**
719 * _scsih_expander_node_add - insert expander device to the list.
720 * @ioc: per adapter object
721 * @sas_expander: the sas_device object
722 * Context: This function will acquire ioc->sas_node_lock.
723 *
724 * Adding new object to the ioc->sas_expander_list.
725 *
726 * Return nothing.
727 */
728 static void
729 _scsih_expander_node_add(struct MPT2SAS_ADAPTER *ioc,
730 struct _sas_node *sas_expander)
731 {
732 unsigned long flags;
733
734 spin_lock_irqsave(&ioc->sas_node_lock, flags);
735 list_add_tail(&sas_expander->list, &ioc->sas_expander_list);
736 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
737 }
738
739 /**
740 * _scsih_is_end_device - determines if device is an end device
741 * @device_info: bitfield providing information about the device.
742 * Context: none
743 *
744 * Returns 1 if end device.
745 */
746 static int
747 _scsih_is_end_device(u32 device_info)
748 {
749 if (device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE &&
750 ((device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) |
751 (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) |
752 (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))
753 return 1;
754 else
755 return 0;
756 }
757
758 /**
759 * _scsih_scsi_lookup_get - returns scmd entry
760 * @ioc: per adapter object
761 * @smid: system request message index
762 * Context: This function will acquire ioc->scsi_lookup_lock.
763 *
764 * Returns the smid stored scmd pointer.
765 */
766 static struct scsi_cmnd *
767 _scsih_scsi_lookup_get(struct MPT2SAS_ADAPTER *ioc, u16 smid)
768 {
769 unsigned long flags;
770 struct scsi_cmnd *scmd;
771
772 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
773 scmd = ioc->scsi_lookup[smid - 1].scmd;
774 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
775 return scmd;
776 }
777
778 /**
779 * mptscsih_getclear_scsi_lookup - returns scmd entry
780 * @ioc: per adapter object
781 * @smid: system request message index
782 * Context: This function will acquire ioc->scsi_lookup_lock.
783 *
784 * Returns the smid stored scmd pointer, as well as clearing the scmd pointer.
785 */
786 static struct scsi_cmnd *
787 _scsih_scsi_lookup_getclear(struct MPT2SAS_ADAPTER *ioc, u16 smid)
788 {
789 unsigned long flags;
790 struct scsi_cmnd *scmd;
791
792 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
793 scmd = ioc->scsi_lookup[smid - 1].scmd;
794 ioc->scsi_lookup[smid - 1].scmd = NULL;
795 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
796 return scmd;
797 }
798
799 /**
800 * _scsih_scsi_lookup_set - updates scmd entry in lookup
801 * @ioc: per adapter object
802 * @smid: system request message index
803 * @scmd: pointer to scsi command object
804 * Context: This function will acquire ioc->scsi_lookup_lock.
805 *
806 * This will save scmd pointer in the scsi_lookup array.
807 *
808 * Return nothing.
809 */
810 static void
811 _scsih_scsi_lookup_set(struct MPT2SAS_ADAPTER *ioc, u16 smid,
812 struct scsi_cmnd *scmd)
813 {
814 unsigned long flags;
815
816 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
817 ioc->scsi_lookup[smid - 1].scmd = scmd;
818 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
819 }
820
821 /**
822 * _scsih_scsi_lookup_find_by_scmd - scmd lookup
823 * @ioc: per adapter object
824 * @smid: system request message index
825 * @scmd: pointer to scsi command object
826 * Context: This function will acquire ioc->scsi_lookup_lock.
827 *
828 * This will search for a scmd pointer in the scsi_lookup array,
829 * returning the revelent smid. A returned value of zero means invalid.
830 */
831 static u16
832 _scsih_scsi_lookup_find_by_scmd(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd
833 *scmd)
834 {
835 u16 smid;
836 unsigned long flags;
837 int i;
838
839 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
840 smid = 0;
841 for (i = 0; i < ioc->request_depth; i++) {
842 if (ioc->scsi_lookup[i].scmd == scmd) {
843 smid = i + 1;
844 goto out;
845 }
846 }
847 out:
848 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
849 return smid;
850 }
851
852 /**
853 * _scsih_scsi_lookup_find_by_target - search for matching channel:id
854 * @ioc: per adapter object
855 * @id: target id
856 * @channel: channel
857 * Context: This function will acquire ioc->scsi_lookup_lock.
858 *
859 * This will search for a matching channel:id in the scsi_lookup array,
860 * returning 1 if found.
861 */
862 static u8
863 _scsih_scsi_lookup_find_by_target(struct MPT2SAS_ADAPTER *ioc, int id,
864 int channel)
865 {
866 u8 found;
867 unsigned long flags;
868 int i;
869
870 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
871 found = 0;
872 for (i = 0 ; i < ioc->request_depth; i++) {
873 if (ioc->scsi_lookup[i].scmd &&
874 (ioc->scsi_lookup[i].scmd->device->id == id &&
875 ioc->scsi_lookup[i].scmd->device->channel == channel)) {
876 found = 1;
877 goto out;
878 }
879 }
880 out:
881 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
882 return found;
883 }
884
885 /**
886 * _scsih_scsi_lookup_find_by_lun - search for matching channel:id:lun
887 * @ioc: per adapter object
888 * @id: target id
889 * @lun: lun number
890 * @channel: channel
891 * Context: This function will acquire ioc->scsi_lookup_lock.
892 *
893 * This will search for a matching channel:id:lun in the scsi_lookup array,
894 * returning 1 if found.
895 */
896 static u8
897 _scsih_scsi_lookup_find_by_lun(struct MPT2SAS_ADAPTER *ioc, int id,
898 unsigned int lun, int channel)
899 {
900 u8 found;
901 unsigned long flags;
902 int i;
903
904 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
905 found = 0;
906 for (i = 0 ; i < ioc->request_depth; i++) {
907 if (ioc->scsi_lookup[i].scmd &&
908 (ioc->scsi_lookup[i].scmd->device->id == id &&
909 ioc->scsi_lookup[i].scmd->device->channel == channel &&
910 ioc->scsi_lookup[i].scmd->device->lun == lun)) {
911 found = 1;
912 goto out;
913 }
914 }
915 out:
916 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
917 return found;
918 }
919
920 /**
921 * _scsih_get_chain_buffer_dma - obtain block of chains (dma address)
922 * @ioc: per adapter object
923 * @smid: system request message index
924 *
925 * Returns phys pointer to chain buffer.
926 */
927 static dma_addr_t
928 _scsih_get_chain_buffer_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid)
929 {
930 return ioc->chain_dma + ((smid - 1) * (ioc->request_sz *
931 ioc->chains_needed_per_io));
932 }
933
934 /**
935 * _scsih_get_chain_buffer - obtain block of chains assigned to a mf request
936 * @ioc: per adapter object
937 * @smid: system request message index
938 *
939 * Returns virt pointer to chain buffer.
940 */
941 static void *
942 _scsih_get_chain_buffer(struct MPT2SAS_ADAPTER *ioc, u16 smid)
943 {
944 return (void *)(ioc->chain + ((smid - 1) * (ioc->request_sz *
945 ioc->chains_needed_per_io)));
946 }
947
948 /**
949 * _scsih_build_scatter_gather - main sg creation routine
950 * @ioc: per adapter object
951 * @scmd: scsi command
952 * @smid: system request message index
953 * Context: none.
954 *
955 * The main routine that builds scatter gather table from a given
956 * scsi request sent via the .queuecommand main handler.
957 *
958 * Returns 0 success, anything else error
959 */
960 static int
961 _scsih_build_scatter_gather(struct MPT2SAS_ADAPTER *ioc,
962 struct scsi_cmnd *scmd, u16 smid)
963 {
964 Mpi2SCSIIORequest_t *mpi_request;
965 dma_addr_t chain_dma;
966 struct scatterlist *sg_scmd;
967 void *sg_local, *chain;
968 u32 chain_offset;
969 u32 chain_length;
970 u32 chain_flags;
971 u32 sges_left;
972 u32 sges_in_segment;
973 u32 sgl_flags;
974 u32 sgl_flags_last_element;
975 u32 sgl_flags_end_buffer;
976
977 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
978
979 /* init scatter gather flags */
980 sgl_flags = MPI2_SGE_FLAGS_SIMPLE_ELEMENT;
981 if (scmd->sc_data_direction == DMA_TO_DEVICE)
982 sgl_flags |= MPI2_SGE_FLAGS_HOST_TO_IOC;
983 sgl_flags_last_element = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT)
984 << MPI2_SGE_FLAGS_SHIFT;
985 sgl_flags_end_buffer = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT |
986 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST)
987 << MPI2_SGE_FLAGS_SHIFT;
988 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
989
990 sg_scmd = scsi_sglist(scmd);
991 sges_left = scsi_dma_map(scmd);
992 if (!sges_left) {
993 sdev_printk(KERN_ERR, scmd->device, "pci_map_sg"
994 " failed: request for %d bytes!\n", scsi_bufflen(scmd));
995 return -ENOMEM;
996 }
997
998 sg_local = &mpi_request->SGL;
999 sges_in_segment = ioc->max_sges_in_main_message;
1000 if (sges_left <= sges_in_segment)
1001 goto fill_in_last_segment;
1002
1003 mpi_request->ChainOffset = (offsetof(Mpi2SCSIIORequest_t, SGL) +
1004 (sges_in_segment * ioc->sge_size))/4;
1005
1006 /* fill in main message segment when there is a chain following */
1007 while (sges_in_segment) {
1008 if (sges_in_segment == 1)
1009 ioc->base_add_sg_single(sg_local,
1010 sgl_flags_last_element | sg_dma_len(sg_scmd),
1011 sg_dma_address(sg_scmd));
1012 else
1013 ioc->base_add_sg_single(sg_local, sgl_flags |
1014 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1015 sg_scmd = sg_next(sg_scmd);
1016 sg_local += ioc->sge_size;
1017 sges_left--;
1018 sges_in_segment--;
1019 }
1020
1021 /* initializing the chain flags and pointers */
1022 chain_flags = MPI2_SGE_FLAGS_CHAIN_ELEMENT << MPI2_SGE_FLAGS_SHIFT;
1023 chain = _scsih_get_chain_buffer(ioc, smid);
1024 chain_dma = _scsih_get_chain_buffer_dma(ioc, smid);
1025 do {
1026 sges_in_segment = (sges_left <=
1027 ioc->max_sges_in_chain_message) ? sges_left :
1028 ioc->max_sges_in_chain_message;
1029 chain_offset = (sges_left == sges_in_segment) ?
1030 0 : (sges_in_segment * ioc->sge_size)/4;
1031 chain_length = sges_in_segment * ioc->sge_size;
1032 if (chain_offset) {
1033 chain_offset = chain_offset <<
1034 MPI2_SGE_CHAIN_OFFSET_SHIFT;
1035 chain_length += ioc->sge_size;
1036 }
1037 ioc->base_add_sg_single(sg_local, chain_flags | chain_offset |
1038 chain_length, chain_dma);
1039 sg_local = chain;
1040 if (!chain_offset)
1041 goto fill_in_last_segment;
1042
1043 /* fill in chain segments */
1044 while (sges_in_segment) {
1045 if (sges_in_segment == 1)
1046 ioc->base_add_sg_single(sg_local,
1047 sgl_flags_last_element |
1048 sg_dma_len(sg_scmd),
1049 sg_dma_address(sg_scmd));
1050 else
1051 ioc->base_add_sg_single(sg_local, sgl_flags |
1052 sg_dma_len(sg_scmd),
1053 sg_dma_address(sg_scmd));
1054 sg_scmd = sg_next(sg_scmd);
1055 sg_local += ioc->sge_size;
1056 sges_left--;
1057 sges_in_segment--;
1058 }
1059
1060 chain_dma += ioc->request_sz;
1061 chain += ioc->request_sz;
1062 } while (1);
1063
1064
1065 fill_in_last_segment:
1066
1067 /* fill the last segment */
1068 while (sges_left) {
1069 if (sges_left == 1)
1070 ioc->base_add_sg_single(sg_local, sgl_flags_end_buffer |
1071 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1072 else
1073 ioc->base_add_sg_single(sg_local, sgl_flags |
1074 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1075 sg_scmd = sg_next(sg_scmd);
1076 sg_local += ioc->sge_size;
1077 sges_left--;
1078 }
1079
1080 return 0;
1081 }
1082
1083 /**
1084 * _scsih_change_queue_depth - setting device queue depth
1085 * @sdev: scsi device struct
1086 * @qdepth: requested queue depth
1087 *
1088 * Returns queue depth.
1089 */
1090 static int
1091 _scsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
1092 {
1093 struct Scsi_Host *shost = sdev->host;
1094 int max_depth;
1095 int tag_type;
1096
1097 max_depth = shost->can_queue;
1098 if (!sdev->tagged_supported)
1099 max_depth = 1;
1100 if (qdepth > max_depth)
1101 qdepth = max_depth;
1102 tag_type = (qdepth == 1) ? 0 : MSG_SIMPLE_TAG;
1103 scsi_adjust_queue_depth(sdev, tag_type, qdepth);
1104
1105 if (sdev->inquiry_len > 7)
1106 sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), "
1107 "simple(%d), ordered(%d), scsi_level(%d), cmd_que(%d)\n",
1108 sdev->queue_depth, sdev->tagged_supported, sdev->simple_tags,
1109 sdev->ordered_tags, sdev->scsi_level,
1110 (sdev->inquiry[7] & 2) >> 1);
1111
1112 return sdev->queue_depth;
1113 }
1114
1115 /**
1116 * _scsih_change_queue_depth - changing device queue tag type
1117 * @sdev: scsi device struct
1118 * @tag_type: requested tag type
1119 *
1120 * Returns queue tag type.
1121 */
1122 static int
1123 _scsih_change_queue_type(struct scsi_device *sdev, int tag_type)
1124 {
1125 if (sdev->tagged_supported) {
1126 scsi_set_tag_type(sdev, tag_type);
1127 if (tag_type)
1128 scsi_activate_tcq(sdev, sdev->queue_depth);
1129 else
1130 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1131 } else
1132 tag_type = 0;
1133
1134 return tag_type;
1135 }
1136
1137 /**
1138 * _scsih_target_alloc - target add routine
1139 * @starget: scsi target struct
1140 *
1141 * Returns 0 if ok. Any other return is assumed to be an error and
1142 * the device is ignored.
1143 */
1144 static int
1145 _scsih_target_alloc(struct scsi_target *starget)
1146 {
1147 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1148 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1149 struct MPT2SAS_TARGET *sas_target_priv_data;
1150 struct _sas_device *sas_device;
1151 struct _raid_device *raid_device;
1152 unsigned long flags;
1153 struct sas_rphy *rphy;
1154
1155 sas_target_priv_data = kzalloc(sizeof(struct scsi_target), GFP_KERNEL);
1156 if (!sas_target_priv_data)
1157 return -ENOMEM;
1158
1159 starget->hostdata = sas_target_priv_data;
1160 sas_target_priv_data->starget = starget;
1161 sas_target_priv_data->handle = MPT2SAS_INVALID_DEVICE_HANDLE;
1162
1163 /* RAID volumes */
1164 if (starget->channel == RAID_CHANNEL) {
1165 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1166 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1167 starget->channel);
1168 if (raid_device) {
1169 sas_target_priv_data->handle = raid_device->handle;
1170 sas_target_priv_data->sas_address = raid_device->wwid;
1171 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME;
1172 raid_device->starget = starget;
1173 }
1174 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1175 return 0;
1176 }
1177
1178 /* sas/sata devices */
1179 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1180 rphy = dev_to_rphy(starget->dev.parent);
1181 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1182 rphy->identify.sas_address);
1183
1184 if (sas_device) {
1185 sas_target_priv_data->handle = sas_device->handle;
1186 sas_target_priv_data->sas_address = sas_device->sas_address;
1187 sas_device->starget = starget;
1188 sas_device->id = starget->id;
1189 sas_device->channel = starget->channel;
1190 if (sas_device->hidden_raid_component)
1191 sas_target_priv_data->flags |=
1192 MPT_TARGET_FLAGS_RAID_COMPONENT;
1193 }
1194 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1195
1196 return 0;
1197 }
1198
1199 /**
1200 * _scsih_target_destroy - target destroy routine
1201 * @starget: scsi target struct
1202 *
1203 * Returns nothing.
1204 */
1205 static void
1206 _scsih_target_destroy(struct scsi_target *starget)
1207 {
1208 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1209 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1210 struct MPT2SAS_TARGET *sas_target_priv_data;
1211 struct _sas_device *sas_device;
1212 struct _raid_device *raid_device;
1213 unsigned long flags;
1214 struct sas_rphy *rphy;
1215
1216 sas_target_priv_data = starget->hostdata;
1217 if (!sas_target_priv_data)
1218 return;
1219
1220 if (starget->channel == RAID_CHANNEL) {
1221 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1222 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1223 starget->channel);
1224 if (raid_device) {
1225 raid_device->starget = NULL;
1226 raid_device->sdev = NULL;
1227 }
1228 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1229 goto out;
1230 }
1231
1232 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1233 rphy = dev_to_rphy(starget->dev.parent);
1234 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1235 rphy->identify.sas_address);
1236 if (sas_device && (sas_device->starget == starget) &&
1237 (sas_device->id == starget->id) &&
1238 (sas_device->channel == starget->channel))
1239 sas_device->starget = NULL;
1240
1241 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1242
1243 out:
1244 kfree(sas_target_priv_data);
1245 starget->hostdata = NULL;
1246 }
1247
1248 /**
1249 * _scsih_slave_alloc - device add routine
1250 * @sdev: scsi device struct
1251 *
1252 * Returns 0 if ok. Any other return is assumed to be an error and
1253 * the device is ignored.
1254 */
1255 static int
1256 _scsih_slave_alloc(struct scsi_device *sdev)
1257 {
1258 struct Scsi_Host *shost;
1259 struct MPT2SAS_ADAPTER *ioc;
1260 struct MPT2SAS_TARGET *sas_target_priv_data;
1261 struct MPT2SAS_DEVICE *sas_device_priv_data;
1262 struct scsi_target *starget;
1263 struct _raid_device *raid_device;
1264 struct _sas_device *sas_device;
1265 unsigned long flags;
1266
1267 sas_device_priv_data = kzalloc(sizeof(struct scsi_device), GFP_KERNEL);
1268 if (!sas_device_priv_data)
1269 return -ENOMEM;
1270
1271 sas_device_priv_data->lun = sdev->lun;
1272 sas_device_priv_data->flags = MPT_DEVICE_FLAGS_INIT;
1273
1274 starget = scsi_target(sdev);
1275 sas_target_priv_data = starget->hostdata;
1276 sas_target_priv_data->num_luns++;
1277 sas_device_priv_data->sas_target = sas_target_priv_data;
1278 sdev->hostdata = sas_device_priv_data;
1279 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT))
1280 sdev->no_uld_attach = 1;
1281
1282 shost = dev_to_shost(&starget->dev);
1283 ioc = shost_priv(shost);
1284 if (starget->channel == RAID_CHANNEL) {
1285 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1286 raid_device = _scsih_raid_device_find_by_id(ioc,
1287 starget->id, starget->channel);
1288 if (raid_device)
1289 raid_device->sdev = sdev; /* raid is single lun */
1290 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1291 } else {
1292 /* set TLR bit for SSP devices */
1293 if (!(ioc->facts.IOCCapabilities &
1294 MPI2_IOCFACTS_CAPABILITY_TLR))
1295 goto out;
1296 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1297 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1298 sas_device_priv_data->sas_target->sas_address);
1299 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1300 if (sas_device && sas_device->device_info &
1301 MPI2_SAS_DEVICE_INFO_SSP_TARGET)
1302 sas_device_priv_data->flags |= MPT_DEVICE_TLR_ON;
1303 }
1304
1305 out:
1306 return 0;
1307 }
1308
1309 /**
1310 * _scsih_slave_destroy - device destroy routine
1311 * @sdev: scsi device struct
1312 *
1313 * Returns nothing.
1314 */
1315 static void
1316 _scsih_slave_destroy(struct scsi_device *sdev)
1317 {
1318 struct MPT2SAS_TARGET *sas_target_priv_data;
1319 struct scsi_target *starget;
1320
1321 if (!sdev->hostdata)
1322 return;
1323
1324 starget = scsi_target(sdev);
1325 sas_target_priv_data = starget->hostdata;
1326 sas_target_priv_data->num_luns--;
1327 kfree(sdev->hostdata);
1328 sdev->hostdata = NULL;
1329 }
1330
1331 /**
1332 * _scsih_display_sata_capabilities - sata capabilities
1333 * @ioc: per adapter object
1334 * @sas_device: the sas_device object
1335 * @sdev: scsi device struct
1336 */
1337 static void
1338 _scsih_display_sata_capabilities(struct MPT2SAS_ADAPTER *ioc,
1339 struct _sas_device *sas_device, struct scsi_device *sdev)
1340 {
1341 Mpi2ConfigReply_t mpi_reply;
1342 Mpi2SasDevicePage0_t sas_device_pg0;
1343 u32 ioc_status;
1344 u16 flags;
1345 u32 device_info;
1346
1347 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
1348 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, sas_device->handle))) {
1349 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1350 ioc->name, __FILE__, __LINE__, __func__);
1351 return;
1352 }
1353
1354 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1355 MPI2_IOCSTATUS_MASK;
1356 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
1357 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1358 ioc->name, __FILE__, __LINE__, __func__);
1359 return;
1360 }
1361
1362 flags = le16_to_cpu(sas_device_pg0.Flags);
1363 device_info = le16_to_cpu(sas_device_pg0.DeviceInfo);
1364
1365 sdev_printk(KERN_INFO, sdev,
1366 "atapi(%s), ncq(%s), asyn_notify(%s), smart(%s), fua(%s), "
1367 "sw_preserve(%s)\n",
1368 (device_info & MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? "y" : "n",
1369 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED) ? "y" : "n",
1370 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY) ? "y" :
1371 "n",
1372 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SMART_SUPPORTED) ? "y" : "n",
1373 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED) ? "y" : "n",
1374 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SW_PRESERVE) ? "y" : "n");
1375 }
1376
1377 /**
1378 * _scsih_get_volume_capabilities - volume capabilities
1379 * @ioc: per adapter object
1380 * @sas_device: the raid_device object
1381 */
1382 static void
1383 _scsih_get_volume_capabilities(struct MPT2SAS_ADAPTER *ioc,
1384 struct _raid_device *raid_device)
1385 {
1386 Mpi2RaidVolPage0_t *vol_pg0;
1387 Mpi2RaidPhysDiskPage0_t pd_pg0;
1388 Mpi2SasDevicePage0_t sas_device_pg0;
1389 Mpi2ConfigReply_t mpi_reply;
1390 u16 sz;
1391 u8 num_pds;
1392
1393 if ((mpt2sas_config_get_number_pds(ioc, raid_device->handle,
1394 &num_pds)) || !num_pds) {
1395 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1396 ioc->name, __FILE__, __LINE__, __func__);
1397 return;
1398 }
1399
1400 raid_device->num_pds = num_pds;
1401 sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
1402 sizeof(Mpi2RaidVol0PhysDisk_t));
1403 vol_pg0 = kzalloc(sz, GFP_KERNEL);
1404 if (!vol_pg0) {
1405 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1406 ioc->name, __FILE__, __LINE__, __func__);
1407 return;
1408 }
1409
1410 if ((mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
1411 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
1412 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1413 ioc->name, __FILE__, __LINE__, __func__);
1414 kfree(vol_pg0);
1415 return;
1416 }
1417
1418 raid_device->volume_type = vol_pg0->VolumeType;
1419
1420 /* figure out what the underlying devices are by
1421 * obtaining the device_info bits for the 1st device
1422 */
1423 if (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
1424 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
1425 vol_pg0->PhysDisk[0].PhysDiskNum))) {
1426 if (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
1427 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
1428 le16_to_cpu(pd_pg0.DevHandle)))) {
1429 raid_device->device_info =
1430 le32_to_cpu(sas_device_pg0.DeviceInfo);
1431 }
1432 }
1433
1434 kfree(vol_pg0);
1435 }
1436
1437 /**
1438 * _scsih_slave_configure - device configure routine.
1439 * @sdev: scsi device struct
1440 *
1441 * Returns 0 if ok. Any other return is assumed to be an error and
1442 * the device is ignored.
1443 */
1444 static int
1445 _scsih_slave_configure(struct scsi_device *sdev)
1446 {
1447 struct Scsi_Host *shost = sdev->host;
1448 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1449 struct MPT2SAS_DEVICE *sas_device_priv_data;
1450 struct MPT2SAS_TARGET *sas_target_priv_data;
1451 struct _sas_device *sas_device;
1452 struct _raid_device *raid_device;
1453 unsigned long flags;
1454 int qdepth;
1455 u8 ssp_target = 0;
1456 char *ds = "";
1457 char *r_level = "";
1458
1459 qdepth = 1;
1460 sas_device_priv_data = sdev->hostdata;
1461 sas_device_priv_data->configured_lun = 1;
1462 sas_device_priv_data->flags &= ~MPT_DEVICE_FLAGS_INIT;
1463 sas_target_priv_data = sas_device_priv_data->sas_target;
1464
1465 /* raid volume handling */
1466 if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME) {
1467
1468 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1469 raid_device = _scsih_raid_device_find_by_handle(ioc,
1470 sas_target_priv_data->handle);
1471 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1472 if (!raid_device) {
1473 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1474 ioc->name, __FILE__, __LINE__, __func__);
1475 return 0;
1476 }
1477
1478 _scsih_get_volume_capabilities(ioc, raid_device);
1479
1480 /* RAID Queue Depth Support
1481 * IS volume = underlying qdepth of drive type, either
1482 * MPT2SAS_SAS_QUEUE_DEPTH or MPT2SAS_SATA_QUEUE_DEPTH
1483 * IM/IME/R10 = 128 (MPT2SAS_RAID_QUEUE_DEPTH)
1484 */
1485 if (raid_device->device_info &
1486 MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
1487 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
1488 ds = "SSP";
1489 } else {
1490 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
1491 if (raid_device->device_info &
1492 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1493 ds = "SATA";
1494 else
1495 ds = "STP";
1496 }
1497
1498 switch (raid_device->volume_type) {
1499 case MPI2_RAID_VOL_TYPE_RAID0:
1500 r_level = "RAID0";
1501 break;
1502 case MPI2_RAID_VOL_TYPE_RAID1E:
1503 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1504 if (ioc->manu_pg10.OEMIdentifier &&
1505 (ioc->manu_pg10.GenericFlags0 &
1506 MFG10_GF0_R10_DISPLAY) &&
1507 !(raid_device->num_pds % 2))
1508 r_level = "RAID10";
1509 else
1510 r_level = "RAID1E";
1511 break;
1512 case MPI2_RAID_VOL_TYPE_RAID1:
1513 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1514 r_level = "RAID1";
1515 break;
1516 case MPI2_RAID_VOL_TYPE_RAID10:
1517 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1518 r_level = "RAID10";
1519 break;
1520 case MPI2_RAID_VOL_TYPE_UNKNOWN:
1521 default:
1522 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1523 r_level = "RAIDX";
1524 break;
1525 }
1526
1527 sdev_printk(KERN_INFO, sdev, "%s: "
1528 "handle(0x%04x), wwid(0x%016llx), pd_count(%d), type(%s)\n",
1529 r_level, raid_device->handle,
1530 (unsigned long long)raid_device->wwid,
1531 raid_device->num_pds, ds);
1532 _scsih_change_queue_depth(sdev, qdepth);
1533 return 0;
1534 }
1535
1536 /* non-raid handling */
1537 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1538 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1539 sas_device_priv_data->sas_target->sas_address);
1540 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1541 if (sas_device) {
1542 if (sas_target_priv_data->flags &
1543 MPT_TARGET_FLAGS_RAID_COMPONENT) {
1544 mpt2sas_config_get_volume_handle(ioc,
1545 sas_device->handle, &sas_device->volume_handle);
1546 mpt2sas_config_get_volume_wwid(ioc,
1547 sas_device->volume_handle,
1548 &sas_device->volume_wwid);
1549 }
1550 if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
1551 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
1552 ssp_target = 1;
1553 ds = "SSP";
1554 } else {
1555 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
1556 if (sas_device->device_info &
1557 MPI2_SAS_DEVICE_INFO_STP_TARGET)
1558 ds = "STP";
1559 else if (sas_device->device_info &
1560 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1561 ds = "SATA";
1562 }
1563
1564 sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), "
1565 "sas_addr(0x%016llx), device_name(0x%016llx)\n",
1566 ds, sas_device->handle,
1567 (unsigned long long)sas_device->sas_address,
1568 (unsigned long long)sas_device->device_name);
1569 sdev_printk(KERN_INFO, sdev, "%s: "
1570 "enclosure_logical_id(0x%016llx), slot(%d)\n", ds,
1571 (unsigned long long) sas_device->enclosure_logical_id,
1572 sas_device->slot);
1573
1574 if (!ssp_target)
1575 _scsih_display_sata_capabilities(ioc, sas_device, sdev);
1576 }
1577
1578 _scsih_change_queue_depth(sdev, qdepth);
1579
1580 if (ssp_target)
1581 sas_read_port_mode_page(sdev);
1582 return 0;
1583 }
1584
1585 /**
1586 * _scsih_bios_param - fetch head, sector, cylinder info for a disk
1587 * @sdev: scsi device struct
1588 * @bdev: pointer to block device context
1589 * @capacity: device size (in 512 byte sectors)
1590 * @params: three element array to place output:
1591 * params[0] number of heads (max 255)
1592 * params[1] number of sectors (max 63)
1593 * params[2] number of cylinders
1594 *
1595 * Return nothing.
1596 */
1597 static int
1598 _scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev,
1599 sector_t capacity, int params[])
1600 {
1601 int heads;
1602 int sectors;
1603 sector_t cylinders;
1604 ulong dummy;
1605
1606 heads = 64;
1607 sectors = 32;
1608
1609 dummy = heads * sectors;
1610 cylinders = capacity;
1611 sector_div(cylinders, dummy);
1612
1613 /*
1614 * Handle extended translation size for logical drives
1615 * > 1Gb
1616 */
1617 if ((ulong)capacity >= 0x200000) {
1618 heads = 255;
1619 sectors = 63;
1620 dummy = heads * sectors;
1621 cylinders = capacity;
1622 sector_div(cylinders, dummy);
1623 }
1624
1625 /* return result */
1626 params[0] = heads;
1627 params[1] = sectors;
1628 params[2] = cylinders;
1629
1630 return 0;
1631 }
1632
1633 /**
1634 * _scsih_response_code - translation of device response code
1635 * @ioc: per adapter object
1636 * @response_code: response code returned by the device
1637 *
1638 * Return nothing.
1639 */
1640 static void
1641 _scsih_response_code(struct MPT2SAS_ADAPTER *ioc, u8 response_code)
1642 {
1643 char *desc;
1644
1645 switch (response_code) {
1646 case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE:
1647 desc = "task management request completed";
1648 break;
1649 case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME:
1650 desc = "invalid frame";
1651 break;
1652 case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
1653 desc = "task management request not supported";
1654 break;
1655 case MPI2_SCSITASKMGMT_RSP_TM_FAILED:
1656 desc = "task management request failed";
1657 break;
1658 case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED:
1659 desc = "task management request succeeded";
1660 break;
1661 case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN:
1662 desc = "invalid lun";
1663 break;
1664 case 0xA:
1665 desc = "overlapped tag attempted";
1666 break;
1667 case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
1668 desc = "task queued, however not sent to target";
1669 break;
1670 default:
1671 desc = "unknown";
1672 break;
1673 }
1674 printk(MPT2SAS_WARN_FMT "response_code(0x%01x): %s\n",
1675 ioc->name, response_code, desc);
1676 }
1677
1678 /**
1679 * _scsih_tm_done - tm completion routine
1680 * @ioc: per adapter object
1681 * @smid: system request message index
1682 * @VF_ID: virtual function id
1683 * @reply: reply message frame(lower 32bit addr)
1684 * Context: none.
1685 *
1686 * The callback handler when using scsih_issue_tm.
1687 *
1688 * Return nothing.
1689 */
1690 static void
1691 _scsih_tm_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply)
1692 {
1693 MPI2DefaultReply_t *mpi_reply;
1694
1695 if (ioc->tm_cmds.status == MPT2_CMD_NOT_USED)
1696 return;
1697 if (ioc->tm_cmds.smid != smid)
1698 return;
1699 ioc->tm_cmds.status |= MPT2_CMD_COMPLETE;
1700 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
1701 if (mpi_reply) {
1702 memcpy(ioc->tm_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
1703 ioc->tm_cmds.status |= MPT2_CMD_REPLY_VALID;
1704 }
1705 ioc->tm_cmds.status &= ~MPT2_CMD_PENDING;
1706 complete(&ioc->tm_cmds.done);
1707 }
1708
1709 /**
1710 * mpt2sas_scsih_set_tm_flag - set per target tm_busy
1711 * @ioc: per adapter object
1712 * @handle: device handle
1713 *
1714 * During taskmangement request, we need to freeze the device queue.
1715 */
1716 void
1717 mpt2sas_scsih_set_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
1718 {
1719 struct MPT2SAS_DEVICE *sas_device_priv_data;
1720 struct scsi_device *sdev;
1721 u8 skip = 0;
1722
1723 shost_for_each_device(sdev, ioc->shost) {
1724 if (skip)
1725 continue;
1726 sas_device_priv_data = sdev->hostdata;
1727 if (!sas_device_priv_data)
1728 continue;
1729 if (sas_device_priv_data->sas_target->handle == handle) {
1730 sas_device_priv_data->sas_target->tm_busy = 1;
1731 skip = 1;
1732 ioc->ignore_loginfos = 1;
1733 }
1734 }
1735 }
1736
1737 /**
1738 * mpt2sas_scsih_clear_tm_flag - clear per target tm_busy
1739 * @ioc: per adapter object
1740 * @handle: device handle
1741 *
1742 * During taskmangement request, we need to freeze the device queue.
1743 */
1744 void
1745 mpt2sas_scsih_clear_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
1746 {
1747 struct MPT2SAS_DEVICE *sas_device_priv_data;
1748 struct scsi_device *sdev;
1749 u8 skip = 0;
1750
1751 shost_for_each_device(sdev, ioc->shost) {
1752 if (skip)
1753 continue;
1754 sas_device_priv_data = sdev->hostdata;
1755 if (!sas_device_priv_data)
1756 continue;
1757 if (sas_device_priv_data->sas_target->handle == handle) {
1758 sas_device_priv_data->sas_target->tm_busy = 0;
1759 skip = 1;
1760 ioc->ignore_loginfos = 0;
1761 }
1762 }
1763 }
1764
1765 /**
1766 * mpt2sas_scsih_issue_tm - main routine for sending tm requests
1767 * @ioc: per adapter struct
1768 * @device_handle: device handle
1769 * @lun: lun number
1770 * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
1771 * @smid_task: smid assigned to the task
1772 * @timeout: timeout in seconds
1773 * Context: The calling function needs to acquire the tm_cmds.mutex
1774 *
1775 * A generic API for sending task management requests to firmware.
1776 *
1777 * The ioc->tm_cmds.status flag should be MPT2_CMD_NOT_USED before calling
1778 * this API.
1779 *
1780 * The callback index is set inside `ioc->tm_cb_idx`.
1781 *
1782 * Return nothing.
1783 */
1784 void
1785 mpt2sas_scsih_issue_tm(struct MPT2SAS_ADAPTER *ioc, u16 handle, uint lun,
1786 u8 type, u16 smid_task, ulong timeout)
1787 {
1788 Mpi2SCSITaskManagementRequest_t *mpi_request;
1789 Mpi2SCSITaskManagementReply_t *mpi_reply;
1790 u16 smid = 0;
1791 u32 ioc_state;
1792 unsigned long timeleft;
1793 u8 VF_ID = 0;
1794
1795 if (ioc->tm_cmds.status != MPT2_CMD_NOT_USED) {
1796 printk(MPT2SAS_INFO_FMT "%s: tm_cmd busy!!!\n",
1797 __func__, ioc->name);
1798 return;
1799 }
1800
1801 if (ioc->shost_recovery) {
1802 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
1803 __func__, ioc->name);
1804 return;
1805 }
1806
1807 ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
1808 if (ioc_state & MPI2_DOORBELL_USED) {
1809 dhsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "unexpected doorbell "
1810 "active!\n", ioc->name));
1811 goto issue_host_reset;
1812 }
1813
1814 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
1815 mpt2sas_base_fault_info(ioc, ioc_state &
1816 MPI2_DOORBELL_DATA_MASK);
1817 goto issue_host_reset;
1818 }
1819
1820 smid = mpt2sas_base_get_smid(ioc, ioc->tm_cb_idx);
1821 if (!smid) {
1822 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
1823 ioc->name, __func__);
1824 return;
1825 }
1826
1827 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "sending tm: handle(0x%04x),"
1828 " task_type(0x%02x), smid(%d)\n", ioc->name, handle, type, smid));
1829 ioc->tm_cmds.status = MPT2_CMD_PENDING;
1830 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
1831 ioc->tm_cmds.smid = smid;
1832 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
1833 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
1834 mpi_request->DevHandle = cpu_to_le16(handle);
1835 mpi_request->TaskType = type;
1836 mpi_request->TaskMID = cpu_to_le16(smid_task);
1837 int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN);
1838 mpt2sas_scsih_set_tm_flag(ioc, handle);
1839 mpt2sas_base_put_smid_hi_priority(ioc, smid, VF_ID);
1840 timeleft = wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
1841 mpt2sas_scsih_clear_tm_flag(ioc, handle);
1842 if (!(ioc->tm_cmds.status & MPT2_CMD_COMPLETE)) {
1843 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
1844 ioc->name, __func__);
1845 _debug_dump_mf(mpi_request,
1846 sizeof(Mpi2SCSITaskManagementRequest_t)/4);
1847 if (!(ioc->tm_cmds.status & MPT2_CMD_RESET))
1848 goto issue_host_reset;
1849 }
1850
1851 if (ioc->tm_cmds.status & MPT2_CMD_REPLY_VALID) {
1852 mpi_reply = ioc->tm_cmds.reply;
1853 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "complete tm: "
1854 "ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n",
1855 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
1856 le32_to_cpu(mpi_reply->IOCLogInfo),
1857 le32_to_cpu(mpi_reply->TerminationCount)));
1858 if (ioc->logging_level & MPT_DEBUG_TM)
1859 _scsih_response_code(ioc, mpi_reply->ResponseCode);
1860 }
1861 return;
1862 issue_host_reset:
1863 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, FORCE_BIG_HAMMER);
1864 }
1865
1866 /**
1867 * _scsih_abort - eh threads main abort routine
1868 * @sdev: scsi device struct
1869 *
1870 * Returns SUCCESS if command aborted else FAILED
1871 */
1872 static int
1873 _scsih_abort(struct scsi_cmnd *scmd)
1874 {
1875 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
1876 struct MPT2SAS_DEVICE *sas_device_priv_data;
1877 u16 smid;
1878 u16 handle;
1879 int r;
1880 struct scsi_cmnd *scmd_lookup;
1881
1882 printk(MPT2SAS_INFO_FMT "attempting task abort! scmd(%p)\n",
1883 ioc->name, scmd);
1884 scsi_print_command(scmd);
1885
1886 sas_device_priv_data = scmd->device->hostdata;
1887 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
1888 printk(MPT2SAS_INFO_FMT "device been deleted! scmd(%p)\n",
1889 ioc->name, scmd);
1890 scmd->result = DID_NO_CONNECT << 16;
1891 scmd->scsi_done(scmd);
1892 r = SUCCESS;
1893 goto out;
1894 }
1895
1896 /* search for the command */
1897 smid = _scsih_scsi_lookup_find_by_scmd(ioc, scmd);
1898 if (!smid) {
1899 scmd->result = DID_RESET << 16;
1900 r = SUCCESS;
1901 goto out;
1902 }
1903
1904 /* for hidden raid components and volumes this is not supported */
1905 if (sas_device_priv_data->sas_target->flags &
1906 MPT_TARGET_FLAGS_RAID_COMPONENT ||
1907 sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_VOLUME) {
1908 scmd->result = DID_RESET << 16;
1909 r = FAILED;
1910 goto out;
1911 }
1912
1913 mutex_lock(&ioc->tm_cmds.mutex);
1914 handle = sas_device_priv_data->sas_target->handle;
1915 mpt2sas_scsih_issue_tm(ioc, handle, sas_device_priv_data->lun,
1916 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30);
1917
1918 /* sanity check - see whether command actually completed */
1919 scmd_lookup = _scsih_scsi_lookup_get(ioc, smid);
1920 if (scmd_lookup && (scmd_lookup->serial_number == scmd->serial_number))
1921 r = FAILED;
1922 else
1923 r = SUCCESS;
1924 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
1925 mutex_unlock(&ioc->tm_cmds.mutex);
1926
1927 out:
1928 printk(MPT2SAS_INFO_FMT "task abort: %s scmd(%p)\n",
1929 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
1930 return r;
1931 }
1932
1933 /**
1934 * _scsih_dev_reset - eh threads main device reset routine
1935 * @sdev: scsi device struct
1936 *
1937 * Returns SUCCESS if command aborted else FAILED
1938 */
1939 static int
1940 _scsih_dev_reset(struct scsi_cmnd *scmd)
1941 {
1942 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
1943 struct MPT2SAS_DEVICE *sas_device_priv_data;
1944 struct _sas_device *sas_device;
1945 unsigned long flags;
1946 u16 handle;
1947 int r;
1948
1949 printk(MPT2SAS_INFO_FMT "attempting device reset! scmd(%p)\n",
1950 ioc->name, scmd);
1951 scsi_print_command(scmd);
1952
1953 sas_device_priv_data = scmd->device->hostdata;
1954 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
1955 printk(MPT2SAS_INFO_FMT "device been deleted! scmd(%p)\n",
1956 ioc->name, scmd);
1957 scmd->result = DID_NO_CONNECT << 16;
1958 scmd->scsi_done(scmd);
1959 r = SUCCESS;
1960 goto out;
1961 }
1962
1963 /* for hidden raid components obtain the volume_handle */
1964 handle = 0;
1965 if (sas_device_priv_data->sas_target->flags &
1966 MPT_TARGET_FLAGS_RAID_COMPONENT) {
1967 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1968 sas_device = _scsih_sas_device_find_by_handle(ioc,
1969 sas_device_priv_data->sas_target->handle);
1970 if (sas_device)
1971 handle = sas_device->volume_handle;
1972 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1973 } else
1974 handle = sas_device_priv_data->sas_target->handle;
1975
1976 if (!handle) {
1977 scmd->result = DID_RESET << 16;
1978 r = FAILED;
1979 goto out;
1980 }
1981
1982 mutex_lock(&ioc->tm_cmds.mutex);
1983 mpt2sas_scsih_issue_tm(ioc, handle, 0,
1984 MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, scmd->device->lun,
1985 30);
1986
1987 /*
1988 * sanity check see whether all commands to this device been
1989 * completed
1990 */
1991 if (_scsih_scsi_lookup_find_by_lun(ioc, scmd->device->id,
1992 scmd->device->lun, scmd->device->channel))
1993 r = FAILED;
1994 else
1995 r = SUCCESS;
1996 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
1997 mutex_unlock(&ioc->tm_cmds.mutex);
1998
1999 out:
2000 printk(MPT2SAS_INFO_FMT "device reset: %s scmd(%p)\n",
2001 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2002 return r;
2003 }
2004
2005 /**
2006 * _scsih_target_reset - eh threads main target reset routine
2007 * @sdev: scsi device struct
2008 *
2009 * Returns SUCCESS if command aborted else FAILED
2010 */
2011 static int
2012 _scsih_target_reset(struct scsi_cmnd *scmd)
2013 {
2014 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2015 struct MPT2SAS_DEVICE *sas_device_priv_data;
2016 struct _sas_device *sas_device;
2017 unsigned long flags;
2018 u16 handle;
2019 int r;
2020
2021 printk(MPT2SAS_INFO_FMT "attempting target reset! scmd(%p)\n",
2022 ioc->name, scmd);
2023 scsi_print_command(scmd);
2024
2025 sas_device_priv_data = scmd->device->hostdata;
2026 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2027 printk(MPT2SAS_INFO_FMT "target been deleted! scmd(%p)\n",
2028 ioc->name, scmd);
2029 scmd->result = DID_NO_CONNECT << 16;
2030 scmd->scsi_done(scmd);
2031 r = SUCCESS;
2032 goto out;
2033 }
2034
2035 /* for hidden raid components obtain the volume_handle */
2036 handle = 0;
2037 if (sas_device_priv_data->sas_target->flags &
2038 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2039 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2040 sas_device = _scsih_sas_device_find_by_handle(ioc,
2041 sas_device_priv_data->sas_target->handle);
2042 if (sas_device)
2043 handle = sas_device->volume_handle;
2044 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2045 } else
2046 handle = sas_device_priv_data->sas_target->handle;
2047
2048 if (!handle) {
2049 scmd->result = DID_RESET << 16;
2050 r = FAILED;
2051 goto out;
2052 }
2053
2054 mutex_lock(&ioc->tm_cmds.mutex);
2055 mpt2sas_scsih_issue_tm(ioc, handle, 0,
2056 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 30);
2057
2058 /*
2059 * sanity check see whether all commands to this target been
2060 * completed
2061 */
2062 if (_scsih_scsi_lookup_find_by_target(ioc, scmd->device->id,
2063 scmd->device->channel))
2064 r = FAILED;
2065 else
2066 r = SUCCESS;
2067 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
2068 mutex_unlock(&ioc->tm_cmds.mutex);
2069
2070 out:
2071 printk(MPT2SAS_INFO_FMT "target reset: %s scmd(%p)\n",
2072 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2073 return r;
2074 }
2075
2076 /**
2077 * _scsih_abort - eh threads main host reset routine
2078 * @sdev: scsi device struct
2079 *
2080 * Returns SUCCESS if command aborted else FAILED
2081 */
2082 static int
2083 _scsih_host_reset(struct scsi_cmnd *scmd)
2084 {
2085 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2086 int r, retval;
2087
2088 printk(MPT2SAS_INFO_FMT "attempting host reset! scmd(%p)\n",
2089 ioc->name, scmd);
2090 scsi_print_command(scmd);
2091
2092 retval = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2093 FORCE_BIG_HAMMER);
2094 r = (retval < 0) ? FAILED : SUCCESS;
2095 printk(MPT2SAS_INFO_FMT "host reset: %s scmd(%p)\n",
2096 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2097
2098 return r;
2099 }
2100
2101 /**
2102 * _scsih_fw_event_add - insert and queue up fw_event
2103 * @ioc: per adapter object
2104 * @fw_event: object describing the event
2105 * Context: This function will acquire ioc->fw_event_lock.
2106 *
2107 * This adds the firmware event object into link list, then queues it up to
2108 * be processed from user context.
2109 *
2110 * Return nothing.
2111 */
2112 static void
2113 _scsih_fw_event_add(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
2114 {
2115 unsigned long flags;
2116
2117 if (ioc->firmware_event_thread == NULL)
2118 return;
2119
2120 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2121 list_add_tail(&fw_event->list, &ioc->fw_event_list);
2122 INIT_WORK(&fw_event->work, _firmware_event_work);
2123 queue_work(ioc->firmware_event_thread, &fw_event->work);
2124 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2125 }
2126
2127 /**
2128 * _scsih_fw_event_free - delete fw_event
2129 * @ioc: per adapter object
2130 * @fw_event: object describing the event
2131 * Context: This function will acquire ioc->fw_event_lock.
2132 *
2133 * This removes firmware event object from link list, frees associated memory.
2134 *
2135 * Return nothing.
2136 */
2137 static void
2138 _scsih_fw_event_free(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
2139 *fw_event)
2140 {
2141 unsigned long flags;
2142
2143 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2144 list_del(&fw_event->list);
2145 kfree(fw_event->event_data);
2146 kfree(fw_event);
2147 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2148 }
2149
2150 /**
2151 * _scsih_fw_event_add - requeue an event
2152 * @ioc: per adapter object
2153 * @fw_event: object describing the event
2154 * Context: This function will acquire ioc->fw_event_lock.
2155 *
2156 * Return nothing.
2157 */
2158 static void
2159 _scsih_fw_event_requeue(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
2160 *fw_event, unsigned long delay)
2161 {
2162 unsigned long flags;
2163 if (ioc->firmware_event_thread == NULL)
2164 return;
2165
2166 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2167 queue_work(ioc->firmware_event_thread, &fw_event->work);
2168 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2169 }
2170
2171 /**
2172 * _scsih_fw_event_off - turn flag off preventing event handling
2173 * @ioc: per adapter object
2174 *
2175 * Used to prevent handling of firmware events during adapter reset
2176 * driver unload.
2177 *
2178 * Return nothing.
2179 */
2180 static void
2181 _scsih_fw_event_off(struct MPT2SAS_ADAPTER *ioc)
2182 {
2183 unsigned long flags;
2184
2185 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2186 ioc->fw_events_off = 1;
2187 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2188
2189 }
2190
2191 /**
2192 * _scsih_fw_event_on - turn flag on allowing firmware event handling
2193 * @ioc: per adapter object
2194 *
2195 * Returns nothing.
2196 */
2197 static void
2198 _scsih_fw_event_on(struct MPT2SAS_ADAPTER *ioc)
2199 {
2200 unsigned long flags;
2201
2202 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2203 ioc->fw_events_off = 0;
2204 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2205 }
2206
2207 /**
2208 * _scsih_ublock_io_device - set the device state to SDEV_RUNNING
2209 * @ioc: per adapter object
2210 * @handle: device handle
2211 *
2212 * During device pull we need to appropiately set the sdev state.
2213 */
2214 static void
2215 _scsih_ublock_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2216 {
2217 struct MPT2SAS_DEVICE *sas_device_priv_data;
2218 struct scsi_device *sdev;
2219
2220 shost_for_each_device(sdev, ioc->shost) {
2221 sas_device_priv_data = sdev->hostdata;
2222 if (!sas_device_priv_data)
2223 continue;
2224 if (!sas_device_priv_data->block)
2225 continue;
2226 if (sas_device_priv_data->sas_target->handle == handle) {
2227 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2228 MPT2SAS_INFO_FMT "SDEV_RUNNING: "
2229 "handle(0x%04x)\n", ioc->name, handle));
2230 sas_device_priv_data->block = 0;
2231 scsi_internal_device_unblock(sdev);
2232 }
2233 }
2234 }
2235
2236 /**
2237 * _scsih_block_io_device - set the device state to SDEV_BLOCK
2238 * @ioc: per adapter object
2239 * @handle: device handle
2240 *
2241 * During device pull we need to appropiately set the sdev state.
2242 */
2243 static void
2244 _scsih_block_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2245 {
2246 struct MPT2SAS_DEVICE *sas_device_priv_data;
2247 struct scsi_device *sdev;
2248
2249 shost_for_each_device(sdev, ioc->shost) {
2250 sas_device_priv_data = sdev->hostdata;
2251 if (!sas_device_priv_data)
2252 continue;
2253 if (sas_device_priv_data->block)
2254 continue;
2255 if (sas_device_priv_data->sas_target->handle == handle) {
2256 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2257 MPT2SAS_INFO_FMT "SDEV_BLOCK: "
2258 "handle(0x%04x)\n", ioc->name, handle));
2259 sas_device_priv_data->block = 1;
2260 scsi_internal_device_block(sdev);
2261 }
2262 }
2263 }
2264
2265 /**
2266 * _scsih_block_io_to_children_attached_to_ex
2267 * @ioc: per adapter object
2268 * @sas_expander: the sas_device object
2269 *
2270 * This routine set sdev state to SDEV_BLOCK for all devices
2271 * attached to this expander. This function called when expander is
2272 * pulled.
2273 */
2274 static void
2275 _scsih_block_io_to_children_attached_to_ex(struct MPT2SAS_ADAPTER *ioc,
2276 struct _sas_node *sas_expander)
2277 {
2278 struct _sas_port *mpt2sas_port;
2279 struct _sas_device *sas_device;
2280 struct _sas_node *expander_sibling;
2281 unsigned long flags;
2282
2283 if (!sas_expander)
2284 return;
2285
2286 list_for_each_entry(mpt2sas_port,
2287 &sas_expander->sas_port_list, port_list) {
2288 if (mpt2sas_port->remote_identify.device_type ==
2289 SAS_END_DEVICE) {
2290 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2291 sas_device =
2292 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
2293 mpt2sas_port->remote_identify.sas_address);
2294 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2295 if (!sas_device)
2296 continue;
2297 _scsih_block_io_device(ioc, sas_device->handle);
2298 }
2299 }
2300
2301 list_for_each_entry(mpt2sas_port,
2302 &sas_expander->sas_port_list, port_list) {
2303
2304 if (mpt2sas_port->remote_identify.device_type ==
2305 MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER ||
2306 mpt2sas_port->remote_identify.device_type ==
2307 MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) {
2308
2309 spin_lock_irqsave(&ioc->sas_node_lock, flags);
2310 expander_sibling =
2311 mpt2sas_scsih_expander_find_by_sas_address(
2312 ioc, mpt2sas_port->remote_identify.sas_address);
2313 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
2314 _scsih_block_io_to_children_attached_to_ex(ioc,
2315 expander_sibling);
2316 }
2317 }
2318 }
2319
2320 /**
2321 * _scsih_block_io_to_children_attached_directly
2322 * @ioc: per adapter object
2323 * @event_data: topology change event data
2324 *
2325 * This routine set sdev state to SDEV_BLOCK for all devices
2326 * direct attached during device pull.
2327 */
2328 static void
2329 _scsih_block_io_to_children_attached_directly(struct MPT2SAS_ADAPTER *ioc,
2330 Mpi2EventDataSasTopologyChangeList_t *event_data)
2331 {
2332 int i;
2333 u16 handle;
2334 u16 reason_code;
2335 u8 phy_number;
2336 u8 link_rate;
2337
2338 for (i = 0; i < event_data->NumEntries; i++) {
2339 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
2340 if (!handle)
2341 continue;
2342 phy_number = event_data->StartPhyNum + i;
2343 reason_code = event_data->PHY[i].PhyStatus &
2344 MPI2_EVENT_SAS_TOPO_RC_MASK;
2345 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING)
2346 _scsih_block_io_device(ioc, handle);
2347 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED) {
2348 link_rate = event_data->PHY[i].LinkRate >> 4;
2349 if (link_rate >= MPI2_SAS_NEG_LINK_RATE_1_5)
2350 _scsih_ublock_io_device(ioc, handle);
2351 }
2352 }
2353 }
2354
2355 /**
2356 * _scsih_check_topo_delete_events - sanity check on topo events
2357 * @ioc: per adapter object
2358 * @event_data: the event data payload
2359 *
2360 * This routine added to better handle cable breaker.
2361 *
2362 * This handles the case where driver recieves multiple expander
2363 * add and delete events in a single shot. When there is a delete event
2364 * the routine will void any pending add events waiting in the event queue.
2365 *
2366 * Return nothing.
2367 */
2368 static void
2369 _scsih_check_topo_delete_events(struct MPT2SAS_ADAPTER *ioc,
2370 Mpi2EventDataSasTopologyChangeList_t *event_data)
2371 {
2372 struct fw_event_work *fw_event;
2373 Mpi2EventDataSasTopologyChangeList_t *local_event_data;
2374 u16 expander_handle;
2375 struct _sas_node *sas_expander;
2376 unsigned long flags;
2377
2378 expander_handle = le16_to_cpu(event_data->ExpanderDevHandle);
2379 if (expander_handle < ioc->sas_hba.num_phys) {
2380 _scsih_block_io_to_children_attached_directly(ioc, event_data);
2381 return;
2382 }
2383
2384 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING
2385 || event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING) {
2386 spin_lock_irqsave(&ioc->sas_node_lock, flags);
2387 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
2388 expander_handle);
2389 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
2390 _scsih_block_io_to_children_attached_to_ex(ioc, sas_expander);
2391 } else if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_RESPONDING)
2392 _scsih_block_io_to_children_attached_directly(ioc, event_data);
2393
2394 if (event_data->ExpStatus != MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
2395 return;
2396
2397 /* mark ignore flag for pending events */
2398 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2399 list_for_each_entry(fw_event, &ioc->fw_event_list, list) {
2400 if (fw_event->event != MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
2401 fw_event->ignore)
2402 continue;
2403 local_event_data = fw_event->event_data;
2404 if (local_event_data->ExpStatus ==
2405 MPI2_EVENT_SAS_TOPO_ES_ADDED ||
2406 local_event_data->ExpStatus ==
2407 MPI2_EVENT_SAS_TOPO_ES_RESPONDING) {
2408 if (le16_to_cpu(local_event_data->ExpanderDevHandle) ==
2409 expander_handle) {
2410 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT
2411 "setting ignoring flag\n", ioc->name));
2412 fw_event->ignore = 1;
2413 }
2414 }
2415 }
2416 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2417 }
2418
2419 /**
2420 * _scsih_flush_running_cmds - completing outstanding commands.
2421 * @ioc: per adapter object
2422 *
2423 * The flushing out of all pending scmd commands following host reset,
2424 * where all IO is dropped to the floor.
2425 *
2426 * Return nothing.
2427 */
2428 static void
2429 _scsih_flush_running_cmds(struct MPT2SAS_ADAPTER *ioc)
2430 {
2431 struct scsi_cmnd *scmd;
2432 u16 smid;
2433 u16 count = 0;
2434
2435 for (smid = 1; smid <= ioc->request_depth; smid++) {
2436 scmd = _scsih_scsi_lookup_getclear(ioc, smid);
2437 if (!scmd)
2438 continue;
2439 count++;
2440 mpt2sas_base_free_smid(ioc, smid);
2441 scsi_dma_unmap(scmd);
2442 scmd->result = DID_RESET << 16;
2443 scmd->scsi_done(scmd);
2444 }
2445 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "completing %d cmds\n",
2446 ioc->name, count));
2447 }
2448
2449 /**
2450 * _scsih_setup_eedp - setup MPI request for EEDP transfer
2451 * @scmd: pointer to scsi command object
2452 * @mpi_request: pointer to the SCSI_IO reqest message frame
2453 *
2454 * Supporting protection 1 and 3.
2455 *
2456 * Returns nothing
2457 */
2458 static void
2459 _scsih_setup_eedp(struct scsi_cmnd *scmd, Mpi2SCSIIORequest_t *mpi_request)
2460 {
2461 u16 eedp_flags;
2462 unsigned char prot_op = scsi_get_prot_op(scmd);
2463 unsigned char prot_type = scsi_get_prot_type(scmd);
2464
2465 if (prot_type == SCSI_PROT_DIF_TYPE0 ||
2466 prot_type == SCSI_PROT_DIF_TYPE2 ||
2467 prot_op == SCSI_PROT_NORMAL)
2468 return;
2469
2470 if (prot_op == SCSI_PROT_READ_STRIP)
2471 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP;
2472 else if (prot_op == SCSI_PROT_WRITE_INSERT)
2473 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_INSERT_OP;
2474 else
2475 return;
2476
2477 mpi_request->EEDPBlockSize = scmd->device->sector_size;
2478
2479 switch (prot_type) {
2480 case SCSI_PROT_DIF_TYPE1:
2481
2482 /*
2483 * enable ref/guard checking
2484 * auto increment ref tag
2485 */
2486 mpi_request->EEDPFlags = eedp_flags |
2487 MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
2488 MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
2489 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
2490 mpi_request->CDB.EEDP32.PrimaryReferenceTag =
2491 cpu_to_be32(scsi_get_lba(scmd));
2492
2493 break;
2494
2495 case SCSI_PROT_DIF_TYPE3:
2496
2497 /*
2498 * enable guard checking
2499 */
2500 mpi_request->EEDPFlags = eedp_flags |
2501 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
2502
2503 break;
2504 }
2505 }
2506
2507 /**
2508 * _scsih_eedp_error_handling - return sense code for EEDP errors
2509 * @scmd: pointer to scsi command object
2510 * @ioc_status: ioc status
2511 *
2512 * Returns nothing
2513 */
2514 static void
2515 _scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status)
2516 {
2517 u8 ascq;
2518 u8 sk;
2519 u8 host_byte;
2520
2521 switch (ioc_status) {
2522 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
2523 ascq = 0x01;
2524 break;
2525 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
2526 ascq = 0x02;
2527 break;
2528 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
2529 ascq = 0x03;
2530 break;
2531 default:
2532 ascq = 0x00;
2533 break;
2534 }
2535
2536 if (scmd->sc_data_direction == DMA_TO_DEVICE) {
2537 sk = ILLEGAL_REQUEST;
2538 host_byte = DID_ABORT;
2539 } else {
2540 sk = ABORTED_COMMAND;
2541 host_byte = DID_OK;
2542 }
2543
2544 scsi_build_sense_buffer(0, scmd->sense_buffer, sk, 0x10, ascq);
2545 scmd->result = DRIVER_SENSE << 24 | (host_byte << 16) |
2546 SAM_STAT_CHECK_CONDITION;
2547 }
2548
2549 /**
2550 * _scsih_qcmd - main scsi request entry point
2551 * @scmd: pointer to scsi command object
2552 * @done: function pointer to be invoked on completion
2553 *
2554 * The callback index is set inside `ioc->scsi_io_cb_idx`.
2555 *
2556 * Returns 0 on success. If there's a failure, return either:
2557 * SCSI_MLQUEUE_DEVICE_BUSY if the device queue is full, or
2558 * SCSI_MLQUEUE_HOST_BUSY if the entire host queue is full
2559 */
2560 static int
2561 _scsih_qcmd(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
2562 {
2563 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2564 struct MPT2SAS_DEVICE *sas_device_priv_data;
2565 struct MPT2SAS_TARGET *sas_target_priv_data;
2566 Mpi2SCSIIORequest_t *mpi_request;
2567 u32 mpi_control;
2568 u16 smid;
2569
2570 scmd->scsi_done = done;
2571 sas_device_priv_data = scmd->device->hostdata;
2572 if (!sas_device_priv_data) {
2573 scmd->result = DID_NO_CONNECT << 16;
2574 scmd->scsi_done(scmd);
2575 return 0;
2576 }
2577
2578 sas_target_priv_data = sas_device_priv_data->sas_target;
2579 if (!sas_target_priv_data || sas_target_priv_data->handle ==
2580 MPT2SAS_INVALID_DEVICE_HANDLE || sas_target_priv_data->deleted) {
2581 scmd->result = DID_NO_CONNECT << 16;
2582 scmd->scsi_done(scmd);
2583 return 0;
2584 }
2585
2586 /* see if we are busy with task managment stuff */
2587 if (sas_target_priv_data->tm_busy)
2588 return SCSI_MLQUEUE_DEVICE_BUSY;
2589 else if (ioc->shost_recovery || ioc->ioc_link_reset_in_progress)
2590 return SCSI_MLQUEUE_HOST_BUSY;
2591
2592 if (scmd->sc_data_direction == DMA_FROM_DEVICE)
2593 mpi_control = MPI2_SCSIIO_CONTROL_READ;
2594 else if (scmd->sc_data_direction == DMA_TO_DEVICE)
2595 mpi_control = MPI2_SCSIIO_CONTROL_WRITE;
2596 else
2597 mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER;
2598
2599 /* set tags */
2600 if (!(sas_device_priv_data->flags & MPT_DEVICE_FLAGS_INIT)) {
2601 if (scmd->device->tagged_supported) {
2602 if (scmd->device->ordered_tags)
2603 mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ;
2604 else
2605 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
2606 } else
2607 /* MPI Revision I (UNIT = 0xA) - removed MPI2_SCSIIO_CONTROL_UNTAGGED */
2608 /* mpi_control |= MPI2_SCSIIO_CONTROL_UNTAGGED;
2609 */
2610 mpi_control |= (0x500);
2611
2612 } else
2613 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
2614
2615 if ((sas_device_priv_data->flags & MPT_DEVICE_TLR_ON))
2616 mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
2617
2618 smid = mpt2sas_base_get_smid(ioc, ioc->scsi_io_cb_idx);
2619 if (!smid) {
2620 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
2621 ioc->name, __func__);
2622 goto out;
2623 }
2624 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
2625 memset(mpi_request, 0, sizeof(Mpi2SCSIIORequest_t));
2626 _scsih_setup_eedp(scmd, mpi_request);
2627 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
2628 if (sas_device_priv_data->sas_target->flags &
2629 MPT_TARGET_FLAGS_RAID_COMPONENT)
2630 mpi_request->Function = MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
2631 else
2632 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
2633 mpi_request->DevHandle =
2634 cpu_to_le16(sas_device_priv_data->sas_target->handle);
2635 mpi_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
2636 mpi_request->Control = cpu_to_le32(mpi_control);
2637 mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len);
2638 mpi_request->MsgFlags = MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR;
2639 mpi_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
2640 mpi_request->SenseBufferLowAddress =
2641 (u32)mpt2sas_base_get_sense_buffer_dma(ioc, smid);
2642 mpi_request->SGLOffset0 = offsetof(Mpi2SCSIIORequest_t, SGL) / 4;
2643 mpi_request->SGLFlags = cpu_to_le16(MPI2_SCSIIO_SGLFLAGS_TYPE_MPI +
2644 MPI2_SCSIIO_SGLFLAGS_SYSTEM_ADDR);
2645
2646 int_to_scsilun(sas_device_priv_data->lun, (struct scsi_lun *)
2647 mpi_request->LUN);
2648 memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
2649
2650 if (!mpi_request->DataLength) {
2651 mpt2sas_base_build_zero_len_sge(ioc, &mpi_request->SGL);
2652 } else {
2653 if (_scsih_build_scatter_gather(ioc, scmd, smid)) {
2654 mpt2sas_base_free_smid(ioc, smid);
2655 goto out;
2656 }
2657 }
2658
2659 _scsih_scsi_lookup_set(ioc, smid, scmd);
2660 mpt2sas_base_put_smid_scsi_io(ioc, smid, 0,
2661 sas_device_priv_data->sas_target->handle);
2662 return 0;
2663
2664 out:
2665 return SCSI_MLQUEUE_HOST_BUSY;
2666 }
2667
2668 /**
2669 * _scsih_normalize_sense - normalize descriptor and fixed format sense data
2670 * @sense_buffer: sense data returned by target
2671 * @data: normalized skey/asc/ascq
2672 *
2673 * Return nothing.
2674 */
2675 static void
2676 _scsih_normalize_sense(char *sense_buffer, struct sense_info *data)
2677 {
2678 if ((sense_buffer[0] & 0x7F) >= 0x72) {
2679 /* descriptor format */
2680 data->skey = sense_buffer[1] & 0x0F;
2681 data->asc = sense_buffer[2];
2682 data->ascq = sense_buffer[3];
2683 } else {
2684 /* fixed format */
2685 data->skey = sense_buffer[2] & 0x0F;
2686 data->asc = sense_buffer[12];
2687 data->ascq = sense_buffer[13];
2688 }
2689 }
2690
2691 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
2692 /**
2693 * _scsih_scsi_ioc_info - translated non-succesfull SCSI_IO request
2694 * @ioc: per adapter object
2695 * @scmd: pointer to scsi command object
2696 * @mpi_reply: reply mf payload returned from firmware
2697 *
2698 * scsi_status - SCSI Status code returned from target device
2699 * scsi_state - state info associated with SCSI_IO determined by ioc
2700 * ioc_status - ioc supplied status info
2701 *
2702 * Return nothing.
2703 */
2704 static void
2705 _scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
2706 Mpi2SCSIIOReply_t *mpi_reply, u16 smid)
2707 {
2708 u32 response_info;
2709 u8 *response_bytes;
2710 u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
2711 MPI2_IOCSTATUS_MASK;
2712 u8 scsi_state = mpi_reply->SCSIState;
2713 u8 scsi_status = mpi_reply->SCSIStatus;
2714 char *desc_ioc_state = NULL;
2715 char *desc_scsi_status = NULL;
2716 char *desc_scsi_state = ioc->tmp_string;
2717 u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
2718
2719 if (log_info == 0x31170000)
2720 return;
2721
2722 switch (ioc_status) {
2723 case MPI2_IOCSTATUS_SUCCESS:
2724 desc_ioc_state = "success";
2725 break;
2726 case MPI2_IOCSTATUS_INVALID_FUNCTION:
2727 desc_ioc_state = "invalid function";
2728 break;
2729 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
2730 desc_ioc_state = "scsi recovered error";
2731 break;
2732 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
2733 desc_ioc_state = "scsi invalid dev handle";
2734 break;
2735 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
2736 desc_ioc_state = "scsi device not there";
2737 break;
2738 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
2739 desc_ioc_state = "scsi data overrun";
2740 break;
2741 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
2742 desc_ioc_state = "scsi data underrun";
2743 break;
2744 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
2745 desc_ioc_state = "scsi io data error";
2746 break;
2747 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
2748 desc_ioc_state = "scsi protocol error";
2749 break;
2750 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
2751 desc_ioc_state = "scsi task terminated";
2752 break;
2753 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
2754 desc_ioc_state = "scsi residual mismatch";
2755 break;
2756 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
2757 desc_ioc_state = "scsi task mgmt failed";
2758 break;
2759 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
2760 desc_ioc_state = "scsi ioc terminated";
2761 break;
2762 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
2763 desc_ioc_state = "scsi ext terminated";
2764 break;
2765 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
2766 desc_ioc_state = "eedp guard error";
2767 break;
2768 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
2769 desc_ioc_state = "eedp ref tag error";
2770 break;
2771 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
2772 desc_ioc_state = "eedp app tag error";
2773 break;
2774 default:
2775 desc_ioc_state = "unknown";
2776 break;
2777 }
2778
2779 switch (scsi_status) {
2780 case MPI2_SCSI_STATUS_GOOD:
2781 desc_scsi_status = "good";
2782 break;
2783 case MPI2_SCSI_STATUS_CHECK_CONDITION:
2784 desc_scsi_status = "check condition";
2785 break;
2786 case MPI2_SCSI_STATUS_CONDITION_MET:
2787 desc_scsi_status = "condition met";
2788 break;
2789 case MPI2_SCSI_STATUS_BUSY:
2790 desc_scsi_status = "busy";
2791 break;
2792 case MPI2_SCSI_STATUS_INTERMEDIATE:
2793 desc_scsi_status = "intermediate";
2794 break;
2795 case MPI2_SCSI_STATUS_INTERMEDIATE_CONDMET:
2796 desc_scsi_status = "intermediate condmet";
2797 break;
2798 case MPI2_SCSI_STATUS_RESERVATION_CONFLICT:
2799 desc_scsi_status = "reservation conflict";
2800 break;
2801 case MPI2_SCSI_STATUS_COMMAND_TERMINATED:
2802 desc_scsi_status = "command terminated";
2803 break;
2804 case MPI2_SCSI_STATUS_TASK_SET_FULL:
2805 desc_scsi_status = "task set full";
2806 break;
2807 case MPI2_SCSI_STATUS_ACA_ACTIVE:
2808 desc_scsi_status = "aca active";
2809 break;
2810 case MPI2_SCSI_STATUS_TASK_ABORTED:
2811 desc_scsi_status = "task aborted";
2812 break;
2813 default:
2814 desc_scsi_status = "unknown";
2815 break;
2816 }
2817
2818 desc_scsi_state[0] = '\0';
2819 if (!scsi_state)
2820 desc_scsi_state = " ";
2821 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
2822 strcat(desc_scsi_state, "response info ");
2823 if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
2824 strcat(desc_scsi_state, "state terminated ");
2825 if (scsi_state & MPI2_SCSI_STATE_NO_SCSI_STATUS)
2826 strcat(desc_scsi_state, "no status ");
2827 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_FAILED)
2828 strcat(desc_scsi_state, "autosense failed ");
2829 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID)
2830 strcat(desc_scsi_state, "autosense valid ");
2831
2832 scsi_print_command(scmd);
2833 printk(MPT2SAS_WARN_FMT "\tdev handle(0x%04x), "
2834 "ioc_status(%s)(0x%04x), smid(%d)\n", ioc->name,
2835 le16_to_cpu(mpi_reply->DevHandle), desc_ioc_state,
2836 ioc_status, smid);
2837 printk(MPT2SAS_WARN_FMT "\trequest_len(%d), underflow(%d), "
2838 "resid(%d)\n", ioc->name, scsi_bufflen(scmd), scmd->underflow,
2839 scsi_get_resid(scmd));
2840 printk(MPT2SAS_WARN_FMT "\ttag(%d), transfer_count(%d), "
2841 "sc->result(0x%08x)\n", ioc->name, le16_to_cpu(mpi_reply->TaskTag),
2842 le32_to_cpu(mpi_reply->TransferCount), scmd->result);
2843 printk(MPT2SAS_WARN_FMT "\tscsi_status(%s)(0x%02x), "
2844 "scsi_state(%s)(0x%02x)\n", ioc->name, desc_scsi_status,
2845 scsi_status, desc_scsi_state, scsi_state);
2846
2847 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
2848 struct sense_info data;
2849 _scsih_normalize_sense(scmd->sense_buffer, &data);
2850 printk(MPT2SAS_WARN_FMT "\t[sense_key,asc,ascq]: "
2851 "[0x%02x,0x%02x,0x%02x]\n", ioc->name, data.skey,
2852 data.asc, data.ascq);
2853 }
2854
2855 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
2856 response_info = le32_to_cpu(mpi_reply->ResponseInfo);
2857 response_bytes = (u8 *)&response_info;
2858 _scsih_response_code(ioc, response_bytes[3]);
2859 }
2860 }
2861 #endif
2862
2863 /**
2864 * _scsih_smart_predicted_fault - illuminate Fault LED
2865 * @ioc: per adapter object
2866 * @handle: device handle
2867 *
2868 * Return nothing.
2869 */
2870 static void
2871 _scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2872 {
2873 Mpi2SepReply_t mpi_reply;
2874 Mpi2SepRequest_t mpi_request;
2875 struct scsi_target *starget;
2876 struct MPT2SAS_TARGET *sas_target_priv_data;
2877 Mpi2EventNotificationReply_t *event_reply;
2878 Mpi2EventDataSasDeviceStatusChange_t *event_data;
2879 struct _sas_device *sas_device;
2880 ssize_t sz;
2881 unsigned long flags;
2882
2883 /* only handle non-raid devices */
2884 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2885 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
2886 if (!sas_device) {
2887 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2888 return;
2889 }
2890 starget = sas_device->starget;
2891 sas_target_priv_data = starget->hostdata;
2892
2893 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) ||
2894 ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) {
2895 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2896 return;
2897 }
2898 starget_printk(KERN_WARNING, starget, "predicted fault\n");
2899 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2900
2901 if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM) {
2902 memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t));
2903 mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
2904 mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS;
2905 mpi_request.SlotStatus =
2906 MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT;
2907 mpi_request.DevHandle = cpu_to_le16(handle);
2908 mpi_request.Flags = MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS;
2909 if ((mpt2sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
2910 &mpi_request)) != 0) {
2911 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
2912 ioc->name, __FILE__, __LINE__, __func__);
2913 return;
2914 }
2915
2916 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) {
2917 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
2918 "enclosure_processor: ioc_status (0x%04x), "
2919 "loginfo(0x%08x)\n", ioc->name,
2920 le16_to_cpu(mpi_reply.IOCStatus),
2921 le32_to_cpu(mpi_reply.IOCLogInfo)));
2922 return;
2923 }
2924 }
2925
2926 /* insert into event log */
2927 sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
2928 sizeof(Mpi2EventDataSasDeviceStatusChange_t);
2929 event_reply = kzalloc(sz, GFP_KERNEL);
2930 if (!event_reply) {
2931 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
2932 ioc->name, __FILE__, __LINE__, __func__);
2933 return;
2934 }
2935
2936 event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
2937 event_reply->Event =
2938 cpu_to_le16(MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
2939 event_reply->MsgLength = sz/4;
2940 event_reply->EventDataLength =
2941 cpu_to_le16(sizeof(Mpi2EventDataSasDeviceStatusChange_t)/4);
2942 event_data = (Mpi2EventDataSasDeviceStatusChange_t *)
2943 event_reply->EventData;
2944 event_data->ReasonCode = MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA;
2945 event_data->ASC = 0x5D;
2946 event_data->DevHandle = cpu_to_le16(handle);
2947 event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address);
2948 mpt2sas_ctl_add_to_event_log(ioc, event_reply);
2949 kfree(event_reply);
2950 }
2951
2952 /**
2953 * _scsih_io_done - scsi request callback
2954 * @ioc: per adapter object
2955 * @smid: system request message index
2956 * @VF_ID: virtual function id
2957 * @reply: reply message frame(lower 32bit addr)
2958 *
2959 * Callback handler when using scsih_qcmd.
2960 *
2961 * Return nothing.
2962 */
2963 static void
2964 _scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply)
2965 {
2966 Mpi2SCSIIORequest_t *mpi_request;
2967 Mpi2SCSIIOReply_t *mpi_reply;
2968 struct scsi_cmnd *scmd;
2969 u16 ioc_status;
2970 u32 xfer_cnt;
2971 u8 scsi_state;
2972 u8 scsi_status;
2973 u32 log_info;
2974 struct MPT2SAS_DEVICE *sas_device_priv_data;
2975 u32 response_code;
2976
2977 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
2978 scmd = _scsih_scsi_lookup_getclear(ioc, smid);
2979 if (scmd == NULL)
2980 return;
2981
2982 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
2983
2984 if (mpi_reply == NULL) {
2985 scmd->result = DID_OK << 16;
2986 goto out;
2987 }
2988
2989 sas_device_priv_data = scmd->device->hostdata;
2990 if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
2991 sas_device_priv_data->sas_target->deleted) {
2992 scmd->result = DID_NO_CONNECT << 16;
2993 goto out;
2994 }
2995
2996 /* turning off TLR */
2997 if (!sas_device_priv_data->tlr_snoop_check) {
2998 sas_device_priv_data->tlr_snoop_check++;
2999 if (sas_device_priv_data->flags & MPT_DEVICE_TLR_ON) {
3000 response_code = (le32_to_cpu(mpi_reply->ResponseInfo)
3001 >> 24);
3002 if (response_code ==
3003 MPI2_SCSITASKMGMT_RSP_INVALID_FRAME)
3004 sas_device_priv_data->flags &=
3005 ~MPT_DEVICE_TLR_ON;
3006 }
3007 }
3008
3009 xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
3010 scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
3011 ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
3012 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
3013 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
3014 else
3015 log_info = 0;
3016 ioc_status &= MPI2_IOCSTATUS_MASK;
3017 scsi_state = mpi_reply->SCSIState;
3018 scsi_status = mpi_reply->SCSIStatus;
3019
3020 if (ioc_status == MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
3021 (scsi_status == MPI2_SCSI_STATUS_BUSY ||
3022 scsi_status == MPI2_SCSI_STATUS_RESERVATION_CONFLICT ||
3023 scsi_status == MPI2_SCSI_STATUS_TASK_SET_FULL)) {
3024 ioc_status = MPI2_IOCSTATUS_SUCCESS;
3025 }
3026
3027 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
3028 struct sense_info data;
3029 const void *sense_data = mpt2sas_base_get_sense_buffer(ioc,
3030 smid);
3031 u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
3032 le32_to_cpu(mpi_reply->SenseCount));
3033 memcpy(scmd->sense_buffer, sense_data, sz);
3034 _scsih_normalize_sense(scmd->sense_buffer, &data);
3035 /* failure prediction threshold exceeded */
3036 if (data.asc == 0x5D)
3037 _scsih_smart_predicted_fault(ioc,
3038 le16_to_cpu(mpi_reply->DevHandle));
3039 }
3040
3041 switch (ioc_status) {
3042 case MPI2_IOCSTATUS_BUSY:
3043 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
3044 scmd->result = SAM_STAT_BUSY;
3045 break;
3046
3047 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
3048 scmd->result = DID_NO_CONNECT << 16;
3049 break;
3050
3051 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
3052 if (sas_device_priv_data->block) {
3053 scmd->result = (DID_BUS_BUSY << 16);
3054 break;
3055 }
3056
3057 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
3058 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
3059 scmd->result = DID_RESET << 16;
3060 break;
3061
3062 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
3063 if ((xfer_cnt == 0) || (scmd->underflow > xfer_cnt))
3064 scmd->result = DID_SOFT_ERROR << 16;
3065 else
3066 scmd->result = (DID_OK << 16) | scsi_status;
3067 break;
3068
3069 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
3070 scmd->result = (DID_OK << 16) | scsi_status;
3071
3072 if ((scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID))
3073 break;
3074
3075 if (xfer_cnt < scmd->underflow) {
3076 if (scsi_status == SAM_STAT_BUSY)
3077 scmd->result = SAM_STAT_BUSY;
3078 else
3079 scmd->result = DID_SOFT_ERROR << 16;
3080 } else if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
3081 MPI2_SCSI_STATE_NO_SCSI_STATUS))
3082 scmd->result = DID_SOFT_ERROR << 16;
3083 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
3084 scmd->result = DID_RESET << 16;
3085 else if (!xfer_cnt && scmd->cmnd[0] == REPORT_LUNS) {
3086 mpi_reply->SCSIState = MPI2_SCSI_STATE_AUTOSENSE_VALID;
3087 mpi_reply->SCSIStatus = SAM_STAT_CHECK_CONDITION;
3088 scmd->result = (DRIVER_SENSE << 24) |
3089 SAM_STAT_CHECK_CONDITION;
3090 scmd->sense_buffer[0] = 0x70;
3091 scmd->sense_buffer[2] = ILLEGAL_REQUEST;
3092 scmd->sense_buffer[12] = 0x20;
3093 scmd->sense_buffer[13] = 0;
3094 }
3095 break;
3096
3097 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
3098 scsi_set_resid(scmd, 0);
3099 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
3100 case MPI2_IOCSTATUS_SUCCESS:
3101 scmd->result = (DID_OK << 16) | scsi_status;
3102 if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
3103 MPI2_SCSI_STATE_NO_SCSI_STATUS))
3104 scmd->result = DID_SOFT_ERROR << 16;
3105 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
3106 scmd->result = DID_RESET << 16;
3107 break;
3108
3109 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
3110 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
3111 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
3112 _scsih_eedp_error_handling(scmd, ioc_status);
3113 break;
3114 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
3115 case MPI2_IOCSTATUS_INVALID_FUNCTION:
3116 case MPI2_IOCSTATUS_INVALID_SGL:
3117 case MPI2_IOCSTATUS_INTERNAL_ERROR:
3118 case MPI2_IOCSTATUS_INVALID_FIELD:
3119 case MPI2_IOCSTATUS_INVALID_STATE:
3120 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
3121 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
3122 default:
3123 scmd->result = DID_SOFT_ERROR << 16;
3124 break;
3125
3126 }
3127
3128 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3129 if (scmd->result && (ioc->logging_level & MPT_DEBUG_REPLY))
3130 _scsih_scsi_ioc_info(ioc , scmd, mpi_reply, smid);
3131 #endif
3132
3133 out:
3134 scsi_dma_unmap(scmd);
3135 scmd->scsi_done(scmd);
3136 }
3137
3138 /**
3139 * _scsih_link_change - process phy link changes
3140 * @ioc: per adapter object
3141 * @handle: phy handle
3142 * @attached_handle: valid for devices attached to link
3143 * @phy_number: phy number
3144 * @link_rate: new link rate
3145 * Context: user.
3146 *
3147 * Return nothing.
3148 */
3149 static void
3150 _scsih_link_change(struct MPT2SAS_ADAPTER *ioc, u16 handle, u16 attached_handle,
3151 u8 phy_number, u8 link_rate)
3152 {
3153 mpt2sas_transport_update_phy_link_change(ioc, handle, attached_handle,
3154 phy_number, link_rate);
3155 }
3156
3157 /**
3158 * _scsih_sas_host_refresh - refreshing sas host object contents
3159 * @ioc: per adapter object
3160 * @update: update link information
3161 * Context: user
3162 *
3163 * During port enable, fw will send topology events for every device. Its
3164 * possible that the handles may change from the previous setting, so this
3165 * code keeping handles updating if changed.
3166 *
3167 * Return nothing.
3168 */
3169 static void
3170 _scsih_sas_host_refresh(struct MPT2SAS_ADAPTER *ioc, u8 update)
3171 {
3172 u16 sz;
3173 u16 ioc_status;
3174 int i;
3175 Mpi2ConfigReply_t mpi_reply;
3176 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
3177
3178 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT
3179 "updating handles for sas_host(0x%016llx)\n",
3180 ioc->name, (unsigned long long)ioc->sas_hba.sas_address));
3181
3182 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys
3183 * sizeof(Mpi2SasIOUnit0PhyData_t));
3184 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
3185 if (!sas_iounit_pg0) {
3186 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3187 ioc->name, __FILE__, __LINE__, __func__);
3188 return;
3189 }
3190 if (!(mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
3191 sas_iounit_pg0, sz))) {
3192 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3193 MPI2_IOCSTATUS_MASK;
3194 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
3195 goto out;
3196 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
3197 ioc->sas_hba.phy[i].handle =
3198 le16_to_cpu(sas_iounit_pg0->PhyData[i].
3199 ControllerDevHandle);
3200 if (update)
3201 _scsih_link_change(ioc,
3202 ioc->sas_hba.phy[i].handle,
3203 le16_to_cpu(sas_iounit_pg0->PhyData[i].
3204 AttachedDevHandle), i,
3205 sas_iounit_pg0->PhyData[i].
3206 NegotiatedLinkRate >> 4);
3207 }
3208 }
3209
3210 out:
3211 kfree(sas_iounit_pg0);
3212 }
3213
3214 /**
3215 * _scsih_sas_host_add - create sas host object
3216 * @ioc: per adapter object
3217 *
3218 * Creating host side data object, stored in ioc->sas_hba
3219 *
3220 * Return nothing.
3221 */
3222 static void
3223 _scsih_sas_host_add(struct MPT2SAS_ADAPTER *ioc)
3224 {
3225 int i;
3226 Mpi2ConfigReply_t mpi_reply;
3227 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
3228 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
3229 Mpi2SasPhyPage0_t phy_pg0;
3230 Mpi2SasDevicePage0_t sas_device_pg0;
3231 Mpi2SasEnclosurePage0_t enclosure_pg0;
3232 u16 ioc_status;
3233 u16 sz;
3234 u16 device_missing_delay;
3235
3236 mpt2sas_config_get_number_hba_phys(ioc, &ioc->sas_hba.num_phys);
3237 if (!ioc->sas_hba.num_phys) {
3238 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3239 ioc->name, __FILE__, __LINE__, __func__);
3240 return;
3241 }
3242
3243 /* sas_iounit page 0 */
3244 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys *
3245 sizeof(Mpi2SasIOUnit0PhyData_t));
3246 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
3247 if (!sas_iounit_pg0) {
3248 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3249 ioc->name, __FILE__, __LINE__, __func__);
3250 return;
3251 }
3252 if ((mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
3253 sas_iounit_pg0, sz))) {
3254 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3255 ioc->name, __FILE__, __LINE__, __func__);
3256 goto out;
3257 }
3258 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3259 MPI2_IOCSTATUS_MASK;
3260 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3261 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3262 ioc->name, __FILE__, __LINE__, __func__);
3263 goto out;
3264 }
3265
3266 /* sas_iounit page 1 */
3267 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
3268 sizeof(Mpi2SasIOUnit1PhyData_t));
3269 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
3270 if (!sas_iounit_pg1) {
3271 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3272 ioc->name, __FILE__, __LINE__, __func__);
3273 goto out;
3274 }
3275 if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
3276 sas_iounit_pg1, sz))) {
3277 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3278 ioc->name, __FILE__, __LINE__, __func__);
3279 goto out;
3280 }
3281 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3282 MPI2_IOCSTATUS_MASK;
3283 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3284 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3285 ioc->name, __FILE__, __LINE__, __func__);
3286 goto out;
3287 }
3288
3289 ioc->io_missing_delay =
3290 le16_to_cpu(sas_iounit_pg1->IODeviceMissingDelay);
3291 device_missing_delay =
3292 le16_to_cpu(sas_iounit_pg1->ReportDeviceMissingDelay);
3293 if (device_missing_delay & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
3294 ioc->device_missing_delay = (device_missing_delay &
3295 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
3296 else
3297 ioc->device_missing_delay = device_missing_delay &
3298 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
3299
3300 ioc->sas_hba.parent_dev = &ioc->shost->shost_gendev;
3301 ioc->sas_hba.phy = kcalloc(ioc->sas_hba.num_phys,
3302 sizeof(struct _sas_phy), GFP_KERNEL);
3303 if (!ioc->sas_hba.phy) {
3304 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3305 ioc->name, __FILE__, __LINE__, __func__);
3306 goto out;
3307 }
3308 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
3309 if ((mpt2sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
3310 i))) {
3311 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3312 ioc->name, __FILE__, __LINE__, __func__);
3313 goto out;
3314 }
3315 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3316 MPI2_IOCSTATUS_MASK;
3317 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3318 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3319 ioc->name, __FILE__, __LINE__, __func__);
3320 goto out;
3321 }
3322 ioc->sas_hba.phy[i].handle =
3323 le16_to_cpu(sas_iounit_pg0->PhyData[i].ControllerDevHandle);
3324 ioc->sas_hba.phy[i].phy_id = i;
3325 mpt2sas_transport_add_host_phy(ioc, &ioc->sas_hba.phy[i],
3326 phy_pg0, ioc->sas_hba.parent_dev);
3327 }
3328 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
3329 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.phy[0].handle))) {
3330 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3331 ioc->name, __FILE__, __LINE__, __func__);
3332 goto out;
3333 }
3334 ioc->sas_hba.handle = le16_to_cpu(sas_device_pg0.DevHandle);
3335 ioc->sas_hba.enclosure_handle =
3336 le16_to_cpu(sas_device_pg0.EnclosureHandle);
3337 ioc->sas_hba.sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
3338 printk(MPT2SAS_INFO_FMT "host_add: handle(0x%04x), "
3339 "sas_addr(0x%016llx), phys(%d)\n", ioc->name, ioc->sas_hba.handle,
3340 (unsigned long long) ioc->sas_hba.sas_address,
3341 ioc->sas_hba.num_phys) ;
3342
3343 if (ioc->sas_hba.enclosure_handle) {
3344 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
3345 &enclosure_pg0,
3346 MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
3347 ioc->sas_hba.enclosure_handle))) {
3348 ioc->sas_hba.enclosure_logical_id =
3349 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
3350 }
3351 }
3352
3353 out:
3354 kfree(sas_iounit_pg1);
3355 kfree(sas_iounit_pg0);
3356 }
3357
3358 /**
3359 * _scsih_expander_add - creating expander object
3360 * @ioc: per adapter object
3361 * @handle: expander handle
3362 *
3363 * Creating expander object, stored in ioc->sas_expander_list.
3364 *
3365 * Return 0 for success, else error.
3366 */
3367 static int
3368 _scsih_expander_add(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3369 {
3370 struct _sas_node *sas_expander;
3371 Mpi2ConfigReply_t mpi_reply;
3372 Mpi2ExpanderPage0_t expander_pg0;
3373 Mpi2ExpanderPage1_t expander_pg1;
3374 Mpi2SasEnclosurePage0_t enclosure_pg0;
3375 u32 ioc_status;
3376 u16 parent_handle;
3377 __le64 sas_address;
3378 int i;
3379 unsigned long flags;
3380 struct _sas_port *mpt2sas_port = NULL;
3381 int rc = 0;
3382
3383 if (!handle)
3384 return -1;
3385
3386 if (ioc->shost_recovery)
3387 return -1;
3388
3389 if ((mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
3390 MPI2_SAS_EXPAND_PGAD_FORM_HNDL, handle))) {
3391 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3392 ioc->name, __FILE__, __LINE__, __func__);
3393 return -1;
3394 }
3395
3396 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3397 MPI2_IOCSTATUS_MASK;
3398 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3399 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3400 ioc->name, __FILE__, __LINE__, __func__);
3401 return -1;
3402 }
3403
3404 /* handle out of order topology events */
3405 parent_handle = le16_to_cpu(expander_pg0.ParentDevHandle);
3406 if (parent_handle >= ioc->sas_hba.num_phys) {
3407 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3408 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
3409 parent_handle);
3410 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3411 if (!sas_expander) {
3412 rc = _scsih_expander_add(ioc, parent_handle);
3413 if (rc != 0)
3414 return rc;
3415 }
3416 }
3417
3418 sas_address = le64_to_cpu(expander_pg0.SASAddress);
3419
3420 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3421 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
3422 sas_address);
3423 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3424
3425 if (sas_expander)
3426 return 0;
3427
3428 sas_expander = kzalloc(sizeof(struct _sas_node),
3429 GFP_KERNEL);
3430 if (!sas_expander) {
3431 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3432 ioc->name, __FILE__, __LINE__, __func__);
3433 return -1;
3434 }
3435
3436 sas_expander->handle = handle;
3437 sas_expander->num_phys = expander_pg0.NumPhys;
3438 sas_expander->parent_handle = parent_handle;
3439 sas_expander->enclosure_handle =
3440 le16_to_cpu(expander_pg0.EnclosureHandle);
3441 sas_expander->sas_address = sas_address;
3442
3443 printk(MPT2SAS_INFO_FMT "expander_add: handle(0x%04x),"
3444 " parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n", ioc->name,
3445 handle, sas_expander->parent_handle, (unsigned long long)
3446 sas_expander->sas_address, sas_expander->num_phys);
3447
3448 if (!sas_expander->num_phys)
3449 goto out_fail;
3450 sas_expander->phy = kcalloc(sas_expander->num_phys,
3451 sizeof(struct _sas_phy), GFP_KERNEL);
3452 if (!sas_expander->phy) {
3453 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3454 ioc->name, __FILE__, __LINE__, __func__);
3455 rc = -1;
3456 goto out_fail;
3457 }
3458
3459 INIT_LIST_HEAD(&sas_expander->sas_port_list);
3460 mpt2sas_port = mpt2sas_transport_port_add(ioc, handle,
3461 sas_expander->parent_handle);
3462 if (!mpt2sas_port) {
3463 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3464 ioc->name, __FILE__, __LINE__, __func__);
3465 rc = -1;
3466 goto out_fail;
3467 }
3468 sas_expander->parent_dev = &mpt2sas_port->rphy->dev;
3469
3470 for (i = 0 ; i < sas_expander->num_phys ; i++) {
3471 if ((mpt2sas_config_get_expander_pg1(ioc, &mpi_reply,
3472 &expander_pg1, i, handle))) {
3473 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3474 ioc->name, __FILE__, __LINE__, __func__);
3475 rc = -1;
3476 goto out_fail;
3477 }
3478 sas_expander->phy[i].handle = handle;
3479 sas_expander->phy[i].phy_id = i;
3480
3481 if ((mpt2sas_transport_add_expander_phy(ioc,
3482 &sas_expander->phy[i], expander_pg1,
3483 sas_expander->parent_dev))) {
3484 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3485 ioc->name, __FILE__, __LINE__, __func__);
3486 rc = -1;
3487 goto out_fail;
3488 }
3489 }
3490
3491 if (sas_expander->enclosure_handle) {
3492 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
3493 &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
3494 sas_expander->enclosure_handle))) {
3495 sas_expander->enclosure_logical_id =
3496 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
3497 }
3498 }
3499
3500 _scsih_expander_node_add(ioc, sas_expander);
3501 return 0;
3502
3503 out_fail:
3504
3505 if (mpt2sas_port)
3506 mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
3507 sas_expander->parent_handle);
3508 kfree(sas_expander);
3509 return rc;
3510 }
3511
3512 /**
3513 * _scsih_expander_remove - removing expander object
3514 * @ioc: per adapter object
3515 * @handle: expander handle
3516 *
3517 * Return nothing.
3518 */
3519 static void
3520 _scsih_expander_remove(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3521 {
3522 struct _sas_node *sas_expander;
3523 unsigned long flags;
3524
3525 if (ioc->shost_recovery)
3526 return;
3527
3528 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3529 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc, handle);
3530 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3531 _scsih_expander_node_remove(ioc, sas_expander);
3532 }
3533
3534 /**
3535 * _scsih_add_device - creating sas device object
3536 * @ioc: per adapter object
3537 * @handle: sas device handle
3538 * @phy_num: phy number end device attached to
3539 * @is_pd: is this hidden raid component
3540 *
3541 * Creating end device object, stored in ioc->sas_device_list.
3542 *
3543 * Returns 0 for success, non-zero for failure.
3544 */
3545 static int
3546 _scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd)
3547 {
3548 Mpi2ConfigReply_t mpi_reply;
3549 Mpi2SasDevicePage0_t sas_device_pg0;
3550 Mpi2SasEnclosurePage0_t enclosure_pg0;
3551 struct _sas_device *sas_device;
3552 u32 ioc_status;
3553 __le64 sas_address;
3554 u32 device_info;
3555 unsigned long flags;
3556
3557 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
3558 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
3559 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3560 ioc->name, __FILE__, __LINE__, __func__);
3561 return -1;
3562 }
3563
3564 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3565 MPI2_IOCSTATUS_MASK;
3566 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3567 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3568 ioc->name, __FILE__, __LINE__, __func__);
3569 return -1;
3570 }
3571
3572 /* check if device is present */
3573 if (!(le16_to_cpu(sas_device_pg0.Flags) &
3574 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
3575 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3576 ioc->name, __FILE__, __LINE__, __func__);
3577 printk(MPT2SAS_ERR_FMT "Flags = 0x%04x\n",
3578 ioc->name, le16_to_cpu(sas_device_pg0.Flags));
3579 return -1;
3580 }
3581
3582 /* check if there were any issus with discovery */
3583 if (sas_device_pg0.AccessStatus ==
3584 MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED) {
3585 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3586 ioc->name, __FILE__, __LINE__, __func__);
3587 printk(MPT2SAS_ERR_FMT "AccessStatus = 0x%02x\n",
3588 ioc->name, sas_device_pg0.AccessStatus);
3589 return -1;
3590 }
3591
3592 /* check if this is end device */
3593 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
3594 if (!(_scsih_is_end_device(device_info))) {
3595 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3596 ioc->name, __FILE__, __LINE__, __func__);
3597 return -1;
3598 }
3599
3600 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
3601
3602 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3603 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
3604 sas_address);
3605 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3606
3607 if (sas_device) {
3608 _scsih_ublock_io_device(ioc, handle);
3609 return 0;
3610 }
3611
3612 sas_device = kzalloc(sizeof(struct _sas_device),
3613 GFP_KERNEL);
3614 if (!sas_device) {
3615 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3616 ioc->name, __FILE__, __LINE__, __func__);
3617 return -1;
3618 }
3619
3620 sas_device->handle = handle;
3621 sas_device->parent_handle =
3622 le16_to_cpu(sas_device_pg0.ParentDevHandle);
3623 sas_device->enclosure_handle =
3624 le16_to_cpu(sas_device_pg0.EnclosureHandle);
3625 sas_device->slot =
3626 le16_to_cpu(sas_device_pg0.Slot);
3627 sas_device->device_info = device_info;
3628 sas_device->sas_address = sas_address;
3629 sas_device->hidden_raid_component = is_pd;
3630
3631 /* get enclosure_logical_id */
3632 if (sas_device->enclosure_handle && !(mpt2sas_config_get_enclosure_pg0(
3633 ioc, &mpi_reply, &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
3634 sas_device->enclosure_handle)))
3635 sas_device->enclosure_logical_id =
3636 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
3637
3638 /* get device name */
3639 sas_device->device_name = le64_to_cpu(sas_device_pg0.DeviceName);
3640
3641 if (ioc->wait_for_port_enable_to_complete)
3642 _scsih_sas_device_init_add(ioc, sas_device);
3643 else
3644 _scsih_sas_device_add(ioc, sas_device);
3645
3646 return 0;
3647 }
3648
3649 /**
3650 * _scsih_remove_device - removing sas device object
3651 * @ioc: per adapter object
3652 * @handle: sas device handle
3653 *
3654 * Return nothing.
3655 */
3656 static void
3657 _scsih_remove_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3658 {
3659 struct MPT2SAS_TARGET *sas_target_priv_data;
3660 struct _sas_device *sas_device;
3661 unsigned long flags;
3662 Mpi2SasIoUnitControlReply_t mpi_reply;
3663 Mpi2SasIoUnitControlRequest_t mpi_request;
3664 u16 device_handle;
3665
3666 /* lookup sas_device */
3667 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3668 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
3669 if (!sas_device) {
3670 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3671 return;
3672 }
3673
3674 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter: handle"
3675 "(0x%04x)\n", ioc->name, __func__, handle));
3676
3677 if (sas_device->starget && sas_device->starget->hostdata) {
3678 sas_target_priv_data = sas_device->starget->hostdata;
3679 sas_target_priv_data->deleted = 1;
3680 }
3681 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3682
3683 if (ioc->remove_host)
3684 goto out;
3685
3686 /* Target Reset to flush out all the outstanding IO */
3687 device_handle = (sas_device->hidden_raid_component) ?
3688 sas_device->volume_handle : handle;
3689 if (device_handle) {
3690 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "issue target reset: "
3691 "handle(0x%04x)\n", ioc->name, device_handle));
3692 mutex_lock(&ioc->tm_cmds.mutex);
3693 mpt2sas_scsih_issue_tm(ioc, device_handle, 0,
3694 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 10);
3695 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
3696 mutex_unlock(&ioc->tm_cmds.mutex);
3697 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "issue target reset "
3698 "done: handle(0x%04x)\n", ioc->name, device_handle));
3699 if (ioc->shost_recovery)
3700 goto out;
3701 }
3702
3703 /* SAS_IO_UNIT_CNTR - send REMOVE_DEVICE */
3704 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sas_iounit: handle"
3705 "(0x%04x)\n", ioc->name, handle));
3706 memset(&mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
3707 mpi_request.Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
3708 mpi_request.Operation = MPI2_SAS_OP_REMOVE_DEVICE;
3709 mpi_request.DevHandle = handle;
3710 mpi_request.VF_ID = 0;
3711 if ((mpt2sas_base_sas_iounit_control(ioc, &mpi_reply,
3712 &mpi_request)) != 0) {
3713 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3714 ioc->name, __FILE__, __LINE__, __func__);
3715 }
3716
3717 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sas_iounit: ioc_status"
3718 "(0x%04x), loginfo(0x%08x)\n", ioc->name,
3719 le16_to_cpu(mpi_reply.IOCStatus),
3720 le32_to_cpu(mpi_reply.IOCLogInfo)));
3721
3722 out:
3723
3724 _scsih_ublock_io_device(ioc, handle);
3725
3726 mpt2sas_transport_port_remove(ioc, sas_device->sas_address,
3727 sas_device->parent_handle);
3728
3729 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), sas_addr"
3730 "(0x%016llx)\n", ioc->name, sas_device->handle,
3731 (unsigned long long) sas_device->sas_address);
3732 _scsih_sas_device_remove(ioc, sas_device);
3733
3734 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit: handle"
3735 "(0x%04x)\n", ioc->name, __func__, handle));
3736 }
3737
3738 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3739 /**
3740 * _scsih_sas_topology_change_event_debug - debug for topology event
3741 * @ioc: per adapter object
3742 * @event_data: event data payload
3743 * Context: user.
3744 */
3745 static void
3746 _scsih_sas_topology_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
3747 Mpi2EventDataSasTopologyChangeList_t *event_data)
3748 {
3749 int i;
3750 u16 handle;
3751 u16 reason_code;
3752 u8 phy_number;
3753 char *status_str = NULL;
3754 char link_rate[25];
3755
3756 switch (event_data->ExpStatus) {
3757 case MPI2_EVENT_SAS_TOPO_ES_ADDED:
3758 status_str = "add";
3759 break;
3760 case MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING:
3761 status_str = "remove";
3762 break;
3763 case MPI2_EVENT_SAS_TOPO_ES_RESPONDING:
3764 status_str = "responding";
3765 break;
3766 case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
3767 status_str = "remove delay";
3768 break;
3769 default:
3770 status_str = "unknown status";
3771 break;
3772 }
3773 printk(MPT2SAS_DEBUG_FMT "sas topology change: (%s)\n",
3774 ioc->name, status_str);
3775 printk(KERN_DEBUG "\thandle(0x%04x), enclosure_handle(0x%04x) "
3776 "start_phy(%02d), count(%d)\n",
3777 le16_to_cpu(event_data->ExpanderDevHandle),
3778 le16_to_cpu(event_data->EnclosureHandle),
3779 event_data->StartPhyNum, event_data->NumEntries);
3780 for (i = 0; i < event_data->NumEntries; i++) {
3781 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
3782 if (!handle)
3783 continue;
3784 phy_number = event_data->StartPhyNum + i;
3785 reason_code = event_data->PHY[i].PhyStatus &
3786 MPI2_EVENT_SAS_TOPO_RC_MASK;
3787 switch (reason_code) {
3788 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
3789 snprintf(link_rate, 25, ": add, link(0x%02x)",
3790 (event_data->PHY[i].LinkRate >> 4));
3791 status_str = link_rate;
3792 break;
3793 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
3794 status_str = ": remove";
3795 break;
3796 case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
3797 status_str = ": remove_delay";
3798 break;
3799 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
3800 snprintf(link_rate, 25, ": link(0x%02x)",
3801 (event_data->PHY[i].LinkRate >> 4));
3802 status_str = link_rate;
3803 break;
3804 case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
3805 status_str = ": responding";
3806 break;
3807 default:
3808 status_str = ": unknown";
3809 break;
3810 }
3811 printk(KERN_DEBUG "\tphy(%02d), attached_handle(0x%04x)%s\n",
3812 phy_number, handle, status_str);
3813 }
3814 }
3815 #endif
3816
3817 /**
3818 * _scsih_sas_topology_change_event - handle topology changes
3819 * @ioc: per adapter object
3820 * @VF_ID:
3821 * @event_data: event data payload
3822 * fw_event:
3823 * Context: user.
3824 *
3825 */
3826 static void
3827 _scsih_sas_topology_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
3828 Mpi2EventDataSasTopologyChangeList_t *event_data,
3829 struct fw_event_work *fw_event)
3830 {
3831 int i;
3832 u16 parent_handle, handle;
3833 u16 reason_code;
3834 u8 phy_number;
3835 struct _sas_node *sas_expander;
3836 unsigned long flags;
3837 u8 link_rate_;
3838
3839 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3840 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
3841 _scsih_sas_topology_change_event_debug(ioc, event_data);
3842 #endif
3843
3844 if (!ioc->sas_hba.num_phys)
3845 _scsih_sas_host_add(ioc);
3846 else
3847 _scsih_sas_host_refresh(ioc, 0);
3848
3849 if (fw_event->ignore) {
3850 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "ignoring expander "
3851 "event\n", ioc->name));
3852 return;
3853 }
3854
3855 parent_handle = le16_to_cpu(event_data->ExpanderDevHandle);
3856
3857 /* handle expander add */
3858 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_ADDED)
3859 if (_scsih_expander_add(ioc, parent_handle) != 0)
3860 return;
3861
3862 /* handle siblings events */
3863 for (i = 0; i < event_data->NumEntries; i++) {
3864 if (fw_event->ignore) {
3865 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "ignoring "
3866 "expander event\n", ioc->name));
3867 return;
3868 }
3869 if (ioc->shost_recovery)
3870 return;
3871 if (event_data->PHY[i].PhyStatus &
3872 MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT)
3873 continue;
3874 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
3875 if (!handle)
3876 continue;
3877 phy_number = event_data->StartPhyNum + i;
3878 reason_code = event_data->PHY[i].PhyStatus &
3879 MPI2_EVENT_SAS_TOPO_RC_MASK;
3880 link_rate_ = event_data->PHY[i].LinkRate >> 4;
3881 switch (reason_code) {
3882 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
3883 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
3884 if (!parent_handle) {
3885 if (phy_number < ioc->sas_hba.num_phys)
3886 _scsih_link_change(ioc,
3887 ioc->sas_hba.phy[phy_number].handle,
3888 handle, phy_number, link_rate_);
3889 } else {
3890 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3891 sas_expander =
3892 mpt2sas_scsih_expander_find_by_handle(ioc,
3893 parent_handle);
3894 spin_unlock_irqrestore(&ioc->sas_node_lock,
3895 flags);
3896 if (sas_expander) {
3897 if (phy_number < sas_expander->num_phys)
3898 _scsih_link_change(ioc,
3899 sas_expander->
3900 phy[phy_number].handle,
3901 handle, phy_number,
3902 link_rate_);
3903 }
3904 }
3905 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED) {
3906 if (link_rate_ < MPI2_SAS_NEG_LINK_RATE_1_5)
3907 break;
3908 _scsih_add_device(ioc, handle, phy_number, 0);
3909 }
3910 break;
3911 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
3912 _scsih_remove_device(ioc, handle);
3913 break;
3914 }
3915 }
3916
3917 /* handle expander removal */
3918 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
3919 _scsih_expander_remove(ioc, parent_handle);
3920
3921 }
3922
3923 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3924 /**
3925 * _scsih_sas_device_status_change_event_debug - debug for device event
3926 * @event_data: event data payload
3927 * Context: user.
3928 *
3929 * Return nothing.
3930 */
3931 static void
3932 _scsih_sas_device_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
3933 Mpi2EventDataSasDeviceStatusChange_t *event_data)
3934 {
3935 char *reason_str = NULL;
3936
3937 switch (event_data->ReasonCode) {
3938 case MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA:
3939 reason_str = "smart data";
3940 break;
3941 case MPI2_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED:
3942 reason_str = "unsupported device discovered";
3943 break;
3944 case MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
3945 reason_str = "internal device reset";
3946 break;
3947 case MPI2_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL:
3948 reason_str = "internal task abort";
3949 break;
3950 case MPI2_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL:
3951 reason_str = "internal task abort set";
3952 break;
3953 case MPI2_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL:
3954 reason_str = "internal clear task set";
3955 break;
3956 case MPI2_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL:
3957 reason_str = "internal query task";
3958 break;
3959 case MPI2_EVENT_SAS_DEV_STAT_RC_SATA_INIT_FAILURE:
3960 reason_str = "sata init failure";
3961 break;
3962 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET:
3963 reason_str = "internal device reset complete";
3964 break;
3965 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_TASK_ABORT_INTERNAL:
3966 reason_str = "internal task abort complete";
3967 break;
3968 case MPI2_EVENT_SAS_DEV_STAT_RC_ASYNC_NOTIFICATION:
3969 reason_str = "internal async notification";
3970 break;
3971 default:
3972 reason_str = "unknown reason";
3973 break;
3974 }
3975 printk(MPT2SAS_DEBUG_FMT "device status change: (%s)\n"
3976 "\thandle(0x%04x), sas address(0x%016llx)", ioc->name,
3977 reason_str, le16_to_cpu(event_data->DevHandle),
3978 (unsigned long long)le64_to_cpu(event_data->SASAddress));
3979 if (event_data->ReasonCode == MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA)
3980 printk(MPT2SAS_DEBUG_FMT ", ASC(0x%x), ASCQ(0x%x)\n", ioc->name,
3981 event_data->ASC, event_data->ASCQ);
3982 printk(KERN_INFO "\n");
3983 }
3984 #endif
3985
3986 /**
3987 * _scsih_sas_device_status_change_event - handle device status change
3988 * @ioc: per adapter object
3989 * @VF_ID:
3990 * @event_data: event data payload
3991 * Context: user.
3992 *
3993 * Return nothing.
3994 */
3995 static void
3996 _scsih_sas_device_status_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
3997 Mpi2EventDataSasDeviceStatusChange_t *event_data)
3998 {
3999 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4000 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4001 _scsih_sas_device_status_change_event_debug(ioc, event_data);
4002 #endif
4003 }
4004
4005 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4006 /**
4007 * _scsih_sas_enclosure_dev_status_change_event_debug - debug for enclosure event
4008 * @ioc: per adapter object
4009 * @event_data: event data payload
4010 * Context: user.
4011 *
4012 * Return nothing.
4013 */
4014 static void
4015 _scsih_sas_enclosure_dev_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
4016 Mpi2EventDataSasEnclDevStatusChange_t *event_data)
4017 {
4018 char *reason_str = NULL;
4019
4020 switch (event_data->ReasonCode) {
4021 case MPI2_EVENT_SAS_ENCL_RC_ADDED:
4022 reason_str = "enclosure add";
4023 break;
4024 case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING:
4025 reason_str = "enclosure remove";
4026 break;
4027 default:
4028 reason_str = "unknown reason";
4029 break;
4030 }
4031
4032 printk(MPT2SAS_DEBUG_FMT "enclosure status change: (%s)\n"
4033 "\thandle(0x%04x), enclosure logical id(0x%016llx)"
4034 " number slots(%d)\n", ioc->name, reason_str,
4035 le16_to_cpu(event_data->EnclosureHandle),
4036 (unsigned long long)le64_to_cpu(event_data->EnclosureLogicalID),
4037 le16_to_cpu(event_data->StartSlot));
4038 }
4039 #endif
4040
4041 /**
4042 * _scsih_sas_enclosure_dev_status_change_event - handle enclosure events
4043 * @ioc: per adapter object
4044 * @VF_ID:
4045 * @event_data: event data payload
4046 * Context: user.
4047 *
4048 * Return nothing.
4049 */
4050 static void
4051 _scsih_sas_enclosure_dev_status_change_event(struct MPT2SAS_ADAPTER *ioc,
4052 u8 VF_ID, Mpi2EventDataSasEnclDevStatusChange_t *event_data)
4053 {
4054 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4055 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4056 _scsih_sas_enclosure_dev_status_change_event_debug(ioc,
4057 event_data);
4058 #endif
4059 }
4060
4061 /**
4062 * _scsih_sas_broadcast_primative_event - handle broadcast events
4063 * @ioc: per adapter object
4064 * @event_data: event data payload
4065 * Context: user.
4066 *
4067 * Return nothing.
4068 */
4069 static void
4070 _scsih_sas_broadcast_primative_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4071 Mpi2EventDataSasBroadcastPrimitive_t *event_data)
4072 {
4073 struct scsi_cmnd *scmd;
4074 u16 smid, handle;
4075 u32 lun;
4076 struct MPT2SAS_DEVICE *sas_device_priv_data;
4077 u32 termination_count;
4078 u32 query_count;
4079 Mpi2SCSITaskManagementReply_t *mpi_reply;
4080
4081 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "broadcast primative: "
4082 "phy number(%d), width(%d)\n", ioc->name, event_data->PhyNum,
4083 event_data->PortWidth));
4084
4085 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name,
4086 __func__));
4087
4088 mutex_lock(&ioc->tm_cmds.mutex);
4089 termination_count = 0;
4090 query_count = 0;
4091 mpi_reply = ioc->tm_cmds.reply;
4092 for (smid = 1; smid <= ioc->request_depth; smid++) {
4093 scmd = _scsih_scsi_lookup_get(ioc, smid);
4094 if (!scmd)
4095 continue;
4096 sas_device_priv_data = scmd->device->hostdata;
4097 if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
4098 continue;
4099 /* skip hidden raid components */
4100 if (sas_device_priv_data->sas_target->flags &
4101 MPT_TARGET_FLAGS_RAID_COMPONENT)
4102 continue;
4103 /* skip volumes */
4104 if (sas_device_priv_data->sas_target->flags &
4105 MPT_TARGET_FLAGS_VOLUME)
4106 continue;
4107
4108 handle = sas_device_priv_data->sas_target->handle;
4109 lun = sas_device_priv_data->lun;
4110 query_count++;
4111
4112 mpt2sas_scsih_issue_tm(ioc, handle, lun,
4113 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30);
4114 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
4115
4116 if ((mpi_reply->IOCStatus == MPI2_IOCSTATUS_SUCCESS) &&
4117 (mpi_reply->ResponseCode ==
4118 MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
4119 mpi_reply->ResponseCode ==
4120 MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC))
4121 continue;
4122
4123 mpt2sas_scsih_issue_tm(ioc, handle, lun,
4124 MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET, 0, 30);
4125 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
4126 termination_count += le32_to_cpu(mpi_reply->TerminationCount);
4127 }
4128 ioc->broadcast_aen_busy = 0;
4129 mutex_unlock(&ioc->tm_cmds.mutex);
4130
4131 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT
4132 "%s - exit, query_count = %d termination_count = %d\n",
4133 ioc->name, __func__, query_count, termination_count));
4134 }
4135
4136 /**
4137 * _scsih_sas_discovery_event - handle discovery events
4138 * @ioc: per adapter object
4139 * @event_data: event data payload
4140 * Context: user.
4141 *
4142 * Return nothing.
4143 */
4144 static void
4145 _scsih_sas_discovery_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4146 Mpi2EventDataSasDiscovery_t *event_data)
4147 {
4148 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4149 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) {
4150 printk(MPT2SAS_DEBUG_FMT "discovery event: (%s)", ioc->name,
4151 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
4152 "start" : "stop");
4153 if (event_data->DiscoveryStatus)
4154 printk(MPT2SAS_DEBUG_FMT ", discovery_status(0x%08x)",
4155 ioc->name, le32_to_cpu(event_data->DiscoveryStatus));
4156 printk("\n");
4157 }
4158 #endif
4159
4160 if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED &&
4161 !ioc->sas_hba.num_phys)
4162 _scsih_sas_host_add(ioc);
4163 }
4164
4165 /**
4166 * _scsih_reprobe_lun - reprobing lun
4167 * @sdev: scsi device struct
4168 * @no_uld_attach: sdev->no_uld_attach flag setting
4169 *
4170 **/
4171 static void
4172 _scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach)
4173 {
4174 int rc;
4175
4176 sdev->no_uld_attach = no_uld_attach ? 1 : 0;
4177 sdev_printk(KERN_INFO, sdev, "%s raid component\n",
4178 sdev->no_uld_attach ? "hidding" : "exposing");
4179 rc = scsi_device_reprobe(sdev);
4180 }
4181
4182 /**
4183 * _scsih_reprobe_target - reprobing target
4184 * @starget: scsi target struct
4185 * @no_uld_attach: sdev->no_uld_attach flag setting
4186 *
4187 * Note: no_uld_attach flag determines whether the disk device is attached
4188 * to block layer. A value of `1` means to not attach.
4189 **/
4190 static void
4191 _scsih_reprobe_target(struct scsi_target *starget, int no_uld_attach)
4192 {
4193 struct MPT2SAS_TARGET *sas_target_priv_data = starget->hostdata;
4194
4195 if (no_uld_attach)
4196 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_RAID_COMPONENT;
4197 else
4198 sas_target_priv_data->flags &= ~MPT_TARGET_FLAGS_RAID_COMPONENT;
4199
4200 starget_for_each_device(starget, no_uld_attach ? (void *)1 : NULL,
4201 _scsih_reprobe_lun);
4202 }
4203 /**
4204 * _scsih_sas_volume_add - add new volume
4205 * @ioc: per adapter object
4206 * @element: IR config element data
4207 * Context: user.
4208 *
4209 * Return nothing.
4210 */
4211 static void
4212 _scsih_sas_volume_add(struct MPT2SAS_ADAPTER *ioc,
4213 Mpi2EventIrConfigElement_t *element)
4214 {
4215 struct _raid_device *raid_device;
4216 unsigned long flags;
4217 u64 wwid;
4218 u16 handle = le16_to_cpu(element->VolDevHandle);
4219 int rc;
4220
4221 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
4222 if (!wwid) {
4223 printk(MPT2SAS_ERR_FMT
4224 "failure at %s:%d/%s()!\n", ioc->name,
4225 __FILE__, __LINE__, __func__);
4226 return;
4227 }
4228
4229 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4230 raid_device = _scsih_raid_device_find_by_wwid(ioc, wwid);
4231 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4232
4233 if (raid_device)
4234 return;
4235
4236 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
4237 if (!raid_device) {
4238 printk(MPT2SAS_ERR_FMT
4239 "failure at %s:%d/%s()!\n", ioc->name,
4240 __FILE__, __LINE__, __func__);
4241 return;
4242 }
4243
4244 raid_device->id = ioc->sas_id++;
4245 raid_device->channel = RAID_CHANNEL;
4246 raid_device->handle = handle;
4247 raid_device->wwid = wwid;
4248 _scsih_raid_device_add(ioc, raid_device);
4249 if (!ioc->wait_for_port_enable_to_complete) {
4250 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
4251 raid_device->id, 0);
4252 if (rc)
4253 _scsih_raid_device_remove(ioc, raid_device);
4254 } else
4255 _scsih_determine_boot_device(ioc, raid_device, 1);
4256 }
4257
4258 /**
4259 * _scsih_sas_volume_delete - delete volume
4260 * @ioc: per adapter object
4261 * @element: IR config element data
4262 * Context: user.
4263 *
4264 * Return nothing.
4265 */
4266 static void
4267 _scsih_sas_volume_delete(struct MPT2SAS_ADAPTER *ioc,
4268 Mpi2EventIrConfigElement_t *element)
4269 {
4270 struct _raid_device *raid_device;
4271 u16 handle = le16_to_cpu(element->VolDevHandle);
4272 unsigned long flags;
4273 struct MPT2SAS_TARGET *sas_target_priv_data;
4274
4275 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4276 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
4277 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4278 if (!raid_device)
4279 return;
4280 if (raid_device->starget) {
4281 sas_target_priv_data = raid_device->starget->hostdata;
4282 sas_target_priv_data->deleted = 1;
4283 scsi_remove_target(&raid_device->starget->dev);
4284 }
4285 _scsih_raid_device_remove(ioc, raid_device);
4286 }
4287
4288 /**
4289 * _scsih_sas_pd_expose - expose pd component to /dev/sdX
4290 * @ioc: per adapter object
4291 * @element: IR config element data
4292 * Context: user.
4293 *
4294 * Return nothing.
4295 */
4296 static void
4297 _scsih_sas_pd_expose(struct MPT2SAS_ADAPTER *ioc,
4298 Mpi2EventIrConfigElement_t *element)
4299 {
4300 struct _sas_device *sas_device;
4301 unsigned long flags;
4302 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4303
4304 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4305 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4306 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4307 if (!sas_device)
4308 return;
4309
4310 /* exposing raid component */
4311 sas_device->volume_handle = 0;
4312 sas_device->volume_wwid = 0;
4313 sas_device->hidden_raid_component = 0;
4314 _scsih_reprobe_target(sas_device->starget, 0);
4315 }
4316
4317 /**
4318 * _scsih_sas_pd_hide - hide pd component from /dev/sdX
4319 * @ioc: per adapter object
4320 * @element: IR config element data
4321 * Context: user.
4322 *
4323 * Return nothing.
4324 */
4325 static void
4326 _scsih_sas_pd_hide(struct MPT2SAS_ADAPTER *ioc,
4327 Mpi2EventIrConfigElement_t *element)
4328 {
4329 struct _sas_device *sas_device;
4330 unsigned long flags;
4331 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4332
4333 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4334 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4335 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4336 if (!sas_device)
4337 return;
4338
4339 /* hiding raid component */
4340 mpt2sas_config_get_volume_handle(ioc, handle,
4341 &sas_device->volume_handle);
4342 mpt2sas_config_get_volume_wwid(ioc, sas_device->volume_handle,
4343 &sas_device->volume_wwid);
4344 sas_device->hidden_raid_component = 1;
4345 _scsih_reprobe_target(sas_device->starget, 1);
4346 }
4347
4348 /**
4349 * _scsih_sas_pd_delete - delete pd component
4350 * @ioc: per adapter object
4351 * @element: IR config element data
4352 * Context: user.
4353 *
4354 * Return nothing.
4355 */
4356 static void
4357 _scsih_sas_pd_delete(struct MPT2SAS_ADAPTER *ioc,
4358 Mpi2EventIrConfigElement_t *element)
4359 {
4360 struct _sas_device *sas_device;
4361 unsigned long flags;
4362 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4363
4364 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4365 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4366 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4367 if (!sas_device)
4368 return;
4369 _scsih_remove_device(ioc, handle);
4370 }
4371
4372 /**
4373 * _scsih_sas_pd_add - remove pd component
4374 * @ioc: per adapter object
4375 * @element: IR config element data
4376 * Context: user.
4377 *
4378 * Return nothing.
4379 */
4380 static void
4381 _scsih_sas_pd_add(struct MPT2SAS_ADAPTER *ioc,
4382 Mpi2EventIrConfigElement_t *element)
4383 {
4384 struct _sas_device *sas_device;
4385 unsigned long flags;
4386 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4387 Mpi2ConfigReply_t mpi_reply;
4388 Mpi2SasDevicePage0_t sas_device_pg0;
4389 u32 ioc_status;
4390
4391 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4392 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4393 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4394 if (sas_device) {
4395 sas_device->hidden_raid_component = 1;
4396 return;
4397 }
4398
4399 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
4400 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
4401 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4402 ioc->name, __FILE__, __LINE__, __func__);
4403 return;
4404 }
4405
4406 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4407 MPI2_IOCSTATUS_MASK;
4408 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4409 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4410 ioc->name, __FILE__, __LINE__, __func__);
4411 return;
4412 }
4413
4414 _scsih_link_change(ioc,
4415 le16_to_cpu(sas_device_pg0.ParentDevHandle),
4416 handle, sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
4417
4418 _scsih_add_device(ioc, handle, 0, 1);
4419 }
4420
4421 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4422 /**
4423 * _scsih_sas_ir_config_change_event_debug - debug for IR Config Change events
4424 * @ioc: per adapter object
4425 * @event_data: event data payload
4426 * Context: user.
4427 *
4428 * Return nothing.
4429 */
4430 static void
4431 _scsih_sas_ir_config_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
4432 Mpi2EventDataIrConfigChangeList_t *event_data)
4433 {
4434 Mpi2EventIrConfigElement_t *element;
4435 u8 element_type;
4436 int i;
4437 char *reason_str = NULL, *element_str = NULL;
4438
4439 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
4440
4441 printk(MPT2SAS_DEBUG_FMT "raid config change: (%s), elements(%d)\n",
4442 ioc->name, (le32_to_cpu(event_data->Flags) &
4443 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ?
4444 "foreign" : "native", event_data->NumElements);
4445 for (i = 0; i < event_data->NumElements; i++, element++) {
4446 switch (element->ReasonCode) {
4447 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
4448 reason_str = "add";
4449 break;
4450 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
4451 reason_str = "remove";
4452 break;
4453 case MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE:
4454 reason_str = "no change";
4455 break;
4456 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
4457 reason_str = "hide";
4458 break;
4459 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
4460 reason_str = "unhide";
4461 break;
4462 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
4463 reason_str = "volume_created";
4464 break;
4465 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
4466 reason_str = "volume_deleted";
4467 break;
4468 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
4469 reason_str = "pd_created";
4470 break;
4471 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
4472 reason_str = "pd_deleted";
4473 break;
4474 default:
4475 reason_str = "unknown reason";
4476 break;
4477 }
4478 element_type = le16_to_cpu(element->ElementFlags) &
4479 MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
4480 switch (element_type) {
4481 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT:
4482 element_str = "volume";
4483 break;
4484 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT:
4485 element_str = "phys disk";
4486 break;
4487 case MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT:
4488 element_str = "hot spare";
4489 break;
4490 default:
4491 element_str = "unknown element";
4492 break;
4493 }
4494 printk(KERN_DEBUG "\t(%s:%s), vol handle(0x%04x), "
4495 "pd handle(0x%04x), pd num(0x%02x)\n", element_str,
4496 reason_str, le16_to_cpu(element->VolDevHandle),
4497 le16_to_cpu(element->PhysDiskDevHandle),
4498 element->PhysDiskNum);
4499 }
4500 }
4501 #endif
4502
4503 /**
4504 * _scsih_sas_ir_config_change_event - handle ir configuration change events
4505 * @ioc: per adapter object
4506 * @VF_ID:
4507 * @event_data: event data payload
4508 * Context: user.
4509 *
4510 * Return nothing.
4511 */
4512 static void
4513 _scsih_sas_ir_config_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4514 Mpi2EventDataIrConfigChangeList_t *event_data)
4515 {
4516 Mpi2EventIrConfigElement_t *element;
4517 int i;
4518 u8 foreign_config;
4519
4520 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4521 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4522 _scsih_sas_ir_config_change_event_debug(ioc, event_data);
4523
4524 #endif
4525 foreign_config = (le32_to_cpu(event_data->Flags) &
4526 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
4527
4528 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
4529 for (i = 0; i < event_data->NumElements; i++, element++) {
4530
4531 switch (element->ReasonCode) {
4532 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
4533 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
4534 if (!foreign_config)
4535 _scsih_sas_volume_add(ioc, element);
4536 break;
4537 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
4538 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
4539 if (!foreign_config)
4540 _scsih_sas_volume_delete(ioc, element);
4541 break;
4542 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
4543 _scsih_sas_pd_hide(ioc, element);
4544 break;
4545 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
4546 _scsih_sas_pd_expose(ioc, element);
4547 break;
4548 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
4549 _scsih_sas_pd_add(ioc, element);
4550 break;
4551 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
4552 _scsih_sas_pd_delete(ioc, element);
4553 break;
4554 }
4555 }
4556 }
4557
4558 /**
4559 * _scsih_sas_ir_volume_event - IR volume event
4560 * @ioc: per adapter object
4561 * @event_data: event data payload
4562 * Context: user.
4563 *
4564 * Return nothing.
4565 */
4566 static void
4567 _scsih_sas_ir_volume_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4568 Mpi2EventDataIrVolume_t *event_data)
4569 {
4570 u64 wwid;
4571 unsigned long flags;
4572 struct _raid_device *raid_device;
4573 u16 handle;
4574 u32 state;
4575 int rc;
4576 struct MPT2SAS_TARGET *sas_target_priv_data;
4577
4578 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
4579 return;
4580
4581 handle = le16_to_cpu(event_data->VolDevHandle);
4582 state = le32_to_cpu(event_data->NewValue);
4583 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle(0x%04x), "
4584 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
4585 le32_to_cpu(event_data->PreviousValue), state));
4586
4587 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4588 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
4589 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4590
4591 switch (state) {
4592 case MPI2_RAID_VOL_STATE_MISSING:
4593 case MPI2_RAID_VOL_STATE_FAILED:
4594 if (!raid_device)
4595 break;
4596 if (raid_device->starget) {
4597 sas_target_priv_data = raid_device->starget->hostdata;
4598 sas_target_priv_data->deleted = 1;
4599 scsi_remove_target(&raid_device->starget->dev);
4600 }
4601 _scsih_raid_device_remove(ioc, raid_device);
4602 break;
4603
4604 case MPI2_RAID_VOL_STATE_ONLINE:
4605 case MPI2_RAID_VOL_STATE_DEGRADED:
4606 case MPI2_RAID_VOL_STATE_OPTIMAL:
4607 if (raid_device)
4608 break;
4609
4610 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
4611 if (!wwid) {
4612 printk(MPT2SAS_ERR_FMT
4613 "failure at %s:%d/%s()!\n", ioc->name,
4614 __FILE__, __LINE__, __func__);
4615 break;
4616 }
4617
4618 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
4619 if (!raid_device) {
4620 printk(MPT2SAS_ERR_FMT
4621 "failure at %s:%d/%s()!\n", ioc->name,
4622 __FILE__, __LINE__, __func__);
4623 break;
4624 }
4625
4626 raid_device->id = ioc->sas_id++;
4627 raid_device->channel = RAID_CHANNEL;
4628 raid_device->handle = handle;
4629 raid_device->wwid = wwid;
4630 _scsih_raid_device_add(ioc, raid_device);
4631 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
4632 raid_device->id, 0);
4633 if (rc)
4634 _scsih_raid_device_remove(ioc, raid_device);
4635 break;
4636
4637 case MPI2_RAID_VOL_STATE_INITIALIZING:
4638 default:
4639 break;
4640 }
4641 }
4642
4643 /**
4644 * _scsih_sas_ir_physical_disk_event - PD event
4645 * @ioc: per adapter object
4646 * @event_data: event data payload
4647 * Context: user.
4648 *
4649 * Return nothing.
4650 */
4651 static void
4652 _scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4653 Mpi2EventDataIrPhysicalDisk_t *event_data)
4654 {
4655 u16 handle;
4656 u32 state;
4657 struct _sas_device *sas_device;
4658 unsigned long flags;
4659 Mpi2ConfigReply_t mpi_reply;
4660 Mpi2SasDevicePage0_t sas_device_pg0;
4661 u32 ioc_status;
4662
4663 if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED)
4664 return;
4665
4666 handle = le16_to_cpu(event_data->PhysDiskDevHandle);
4667 state = le32_to_cpu(event_data->NewValue);
4668
4669 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle(0x%04x), "
4670 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
4671 le32_to_cpu(event_data->PreviousValue), state));
4672
4673 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4674 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4675 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4676
4677 switch (state) {
4678 case MPI2_RAID_PD_STATE_ONLINE:
4679 case MPI2_RAID_PD_STATE_DEGRADED:
4680 case MPI2_RAID_PD_STATE_REBUILDING:
4681 case MPI2_RAID_PD_STATE_OPTIMAL:
4682 if (sas_device) {
4683 sas_device->hidden_raid_component = 1;
4684 return;
4685 }
4686
4687 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
4688 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
4689 handle))) {
4690 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4691 ioc->name, __FILE__, __LINE__, __func__);
4692 return;
4693 }
4694
4695 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4696 MPI2_IOCSTATUS_MASK;
4697 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4698 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4699 ioc->name, __FILE__, __LINE__, __func__);
4700 return;
4701 }
4702
4703 _scsih_link_change(ioc,
4704 le16_to_cpu(sas_device_pg0.ParentDevHandle),
4705 handle, sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
4706
4707 _scsih_add_device(ioc, handle, 0, 1);
4708
4709 break;
4710
4711 case MPI2_RAID_PD_STATE_OFFLINE:
4712 case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
4713 case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
4714 case MPI2_RAID_PD_STATE_HOT_SPARE:
4715 default:
4716 break;
4717 }
4718 }
4719
4720 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4721 /**
4722 * _scsih_sas_ir_operation_status_event_debug - debug for IR op event
4723 * @ioc: per adapter object
4724 * @event_data: event data payload
4725 * Context: user.
4726 *
4727 * Return nothing.
4728 */
4729 static void
4730 _scsih_sas_ir_operation_status_event_debug(struct MPT2SAS_ADAPTER *ioc,
4731 Mpi2EventDataIrOperationStatus_t *event_data)
4732 {
4733 char *reason_str = NULL;
4734
4735 switch (event_data->RAIDOperation) {
4736 case MPI2_EVENT_IR_RAIDOP_RESYNC:
4737 reason_str = "resync";
4738 break;
4739 case MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION:
4740 reason_str = "online capacity expansion";
4741 break;
4742 case MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK:
4743 reason_str = "consistency check";
4744 break;
4745 default:
4746 reason_str = "unknown reason";
4747 break;
4748 }
4749
4750 printk(MPT2SAS_INFO_FMT "raid operational status: (%s)"
4751 "\thandle(0x%04x), percent complete(%d)\n",
4752 ioc->name, reason_str,
4753 le16_to_cpu(event_data->VolDevHandle),
4754 event_data->PercentComplete);
4755 }
4756 #endif
4757
4758 /**
4759 * _scsih_sas_ir_operation_status_event - handle RAID operation events
4760 * @ioc: per adapter object
4761 * @VF_ID:
4762 * @event_data: event data payload
4763 * Context: user.
4764 *
4765 * Return nothing.
4766 */
4767 static void
4768 _scsih_sas_ir_operation_status_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4769 Mpi2EventDataIrOperationStatus_t *event_data)
4770 {
4771 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4772 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4773 _scsih_sas_ir_operation_status_event_debug(ioc, event_data);
4774 #endif
4775 }
4776
4777 /**
4778 * _scsih_task_set_full - handle task set full
4779 * @ioc: per adapter object
4780 * @event_data: event data payload
4781 * Context: user.
4782 *
4783 * Throttle back qdepth.
4784 */
4785 static void
4786 _scsih_task_set_full(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4787 Mpi2EventDataTaskSetFull_t *event_data)
4788 {
4789 unsigned long flags;
4790 struct _sas_device *sas_device;
4791 static struct _raid_device *raid_device;
4792 struct scsi_device *sdev;
4793 int depth;
4794 u16 current_depth;
4795 u16 handle;
4796 int id, channel;
4797 u64 sas_address;
4798
4799 current_depth = le16_to_cpu(event_data->CurrentDepth);
4800 handle = le16_to_cpu(event_data->DevHandle);
4801 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4802 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4803 if (!sas_device) {
4804 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4805 return;
4806 }
4807 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4808 id = sas_device->id;
4809 channel = sas_device->channel;
4810 sas_address = sas_device->sas_address;
4811
4812 /* if hidden raid component, then change to volume characteristics */
4813 if (sas_device->hidden_raid_component && sas_device->volume_handle) {
4814 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4815 raid_device = _scsih_raid_device_find_by_handle(
4816 ioc, sas_device->volume_handle);
4817 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4818 if (raid_device) {
4819 id = raid_device->id;
4820 channel = raid_device->channel;
4821 handle = raid_device->handle;
4822 sas_address = raid_device->wwid;
4823 }
4824 }
4825
4826 if (ioc->logging_level & MPT_DEBUG_TASK_SET_FULL)
4827 starget_printk(KERN_DEBUG, sas_device->starget, "task set "
4828 "full: handle(0x%04x), sas_addr(0x%016llx), depth(%d)\n",
4829 handle, (unsigned long long)sas_address, current_depth);
4830
4831 shost_for_each_device(sdev, ioc->shost) {
4832 if (sdev->id == id && sdev->channel == channel) {
4833 if (current_depth > sdev->queue_depth) {
4834 if (ioc->logging_level &
4835 MPT_DEBUG_TASK_SET_FULL)
4836 sdev_printk(KERN_INFO, sdev, "strange "
4837 "observation, the queue depth is"
4838 " (%d) meanwhile fw queue depth "
4839 "is (%d)\n", sdev->queue_depth,
4840 current_depth);
4841 continue;
4842 }
4843 depth = scsi_track_queue_full(sdev,
4844 current_depth - 1);
4845 if (depth > 0)
4846 sdev_printk(KERN_INFO, sdev, "Queue depth "
4847 "reduced to (%d)\n", depth);
4848 else if (depth < 0)
4849 sdev_printk(KERN_INFO, sdev, "Tagged Command "
4850 "Queueing is being disabled\n");
4851 else if (depth == 0)
4852 if (ioc->logging_level &
4853 MPT_DEBUG_TASK_SET_FULL)
4854 sdev_printk(KERN_INFO, sdev,
4855 "Queue depth not changed yet\n");
4856 }
4857 }
4858 }
4859
4860 /**
4861 * _scsih_mark_responding_sas_device - mark a sas_devices as responding
4862 * @ioc: per adapter object
4863 * @sas_address: sas address
4864 * @slot: enclosure slot id
4865 * @handle: device handle
4866 *
4867 * After host reset, find out whether devices are still responding.
4868 * Used in _scsi_remove_unresponsive_sas_devices.
4869 *
4870 * Return nothing.
4871 */
4872 static void
4873 _scsih_mark_responding_sas_device(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
4874 u16 slot, u16 handle)
4875 {
4876 struct MPT2SAS_TARGET *sas_target_priv_data;
4877 struct scsi_target *starget;
4878 struct _sas_device *sas_device;
4879 unsigned long flags;
4880
4881 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4882 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
4883 if (sas_device->sas_address == sas_address &&
4884 sas_device->slot == slot && sas_device->starget) {
4885 sas_device->responding = 1;
4886 starget_printk(KERN_INFO, sas_device->starget,
4887 "handle(0x%04x), sas_addr(0x%016llx), enclosure "
4888 "logical id(0x%016llx), slot(%d)\n", handle,
4889 (unsigned long long)sas_device->sas_address,
4890 (unsigned long long)
4891 sas_device->enclosure_logical_id,
4892 sas_device->slot);
4893 if (sas_device->handle == handle)
4894 goto out;
4895 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
4896 sas_device->handle);
4897 sas_device->handle = handle;
4898 starget = sas_device->starget;
4899 sas_target_priv_data = starget->hostdata;
4900 sas_target_priv_data->handle = handle;
4901 goto out;
4902 }
4903 }
4904 out:
4905 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4906 }
4907
4908 /**
4909 * _scsih_search_responding_sas_devices -
4910 * @ioc: per adapter object
4911 *
4912 * After host reset, find out whether devices are still responding.
4913 * If not remove.
4914 *
4915 * Return nothing.
4916 */
4917 static void
4918 _scsih_search_responding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
4919 {
4920 Mpi2SasDevicePage0_t sas_device_pg0;
4921 Mpi2ConfigReply_t mpi_reply;
4922 u16 ioc_status;
4923 __le64 sas_address;
4924 u16 handle;
4925 u32 device_info;
4926 u16 slot;
4927
4928 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
4929
4930 if (list_empty(&ioc->sas_device_list))
4931 return;
4932
4933 handle = 0xFFFF;
4934 while (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
4935 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
4936 handle))) {
4937 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4938 MPI2_IOCSTATUS_MASK;
4939 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
4940 break;
4941 handle = le16_to_cpu(sas_device_pg0.DevHandle);
4942 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
4943 if (!(_scsih_is_end_device(device_info)))
4944 continue;
4945 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4946 slot = le16_to_cpu(sas_device_pg0.Slot);
4947 _scsih_mark_responding_sas_device(ioc, sas_address, slot,
4948 handle);
4949 }
4950 }
4951
4952 /**
4953 * _scsih_mark_responding_raid_device - mark a raid_device as responding
4954 * @ioc: per adapter object
4955 * @wwid: world wide identifier for raid volume
4956 * @handle: device handle
4957 *
4958 * After host reset, find out whether devices are still responding.
4959 * Used in _scsi_remove_unresponsive_raid_devices.
4960 *
4961 * Return nothing.
4962 */
4963 static void
4964 _scsih_mark_responding_raid_device(struct MPT2SAS_ADAPTER *ioc, u64 wwid,
4965 u16 handle)
4966 {
4967 struct MPT2SAS_TARGET *sas_target_priv_data;
4968 struct scsi_target *starget;
4969 struct _raid_device *raid_device;
4970 unsigned long flags;
4971
4972 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4973 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
4974 if (raid_device->wwid == wwid && raid_device->starget) {
4975 raid_device->responding = 1;
4976 starget_printk(KERN_INFO, raid_device->starget,
4977 "handle(0x%04x), wwid(0x%016llx)\n", handle,
4978 (unsigned long long)raid_device->wwid);
4979 if (raid_device->handle == handle)
4980 goto out;
4981 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
4982 raid_device->handle);
4983 raid_device->handle = handle;
4984 starget = raid_device->starget;
4985 sas_target_priv_data = starget->hostdata;
4986 sas_target_priv_data->handle = handle;
4987 goto out;
4988 }
4989 }
4990 out:
4991 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4992 }
4993
4994 /**
4995 * _scsih_search_responding_raid_devices -
4996 * @ioc: per adapter object
4997 *
4998 * After host reset, find out whether devices are still responding.
4999 * If not remove.
5000 *
5001 * Return nothing.
5002 */
5003 static void
5004 _scsih_search_responding_raid_devices(struct MPT2SAS_ADAPTER *ioc)
5005 {
5006 Mpi2RaidVolPage1_t volume_pg1;
5007 Mpi2ConfigReply_t mpi_reply;
5008 u16 ioc_status;
5009 u16 handle;
5010
5011 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
5012
5013 if (list_empty(&ioc->raid_device_list))
5014 return;
5015
5016 handle = 0xFFFF;
5017 while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
5018 &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
5019 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5020 MPI2_IOCSTATUS_MASK;
5021 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
5022 break;
5023 handle = le16_to_cpu(volume_pg1.DevHandle);
5024 _scsih_mark_responding_raid_device(ioc,
5025 le64_to_cpu(volume_pg1.WWID), handle);
5026 }
5027 }
5028
5029 /**
5030 * _scsih_mark_responding_expander - mark a expander as responding
5031 * @ioc: per adapter object
5032 * @sas_address: sas address
5033 * @handle:
5034 *
5035 * After host reset, find out whether devices are still responding.
5036 * Used in _scsi_remove_unresponsive_expanders.
5037 *
5038 * Return nothing.
5039 */
5040 static void
5041 _scsih_mark_responding_expander(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
5042 u16 handle)
5043 {
5044 struct _sas_node *sas_expander;
5045 unsigned long flags;
5046
5047 spin_lock_irqsave(&ioc->sas_node_lock, flags);
5048 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
5049 if (sas_expander->sas_address == sas_address) {
5050 sas_expander->responding = 1;
5051 if (sas_expander->handle != handle) {
5052 printk(KERN_INFO "old handle(0x%04x)\n",
5053 sas_expander->handle);
5054 sas_expander->handle = handle;
5055 }
5056 goto out;
5057 }
5058 }
5059 out:
5060 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
5061 }
5062
5063 /**
5064 * _scsih_search_responding_expanders -
5065 * @ioc: per adapter object
5066 *
5067 * After host reset, find out whether devices are still responding.
5068 * If not remove.
5069 *
5070 * Return nothing.
5071 */
5072 static void
5073 _scsih_search_responding_expanders(struct MPT2SAS_ADAPTER *ioc)
5074 {
5075 Mpi2ExpanderPage0_t expander_pg0;
5076 Mpi2ConfigReply_t mpi_reply;
5077 u16 ioc_status;
5078 __le64 sas_address;
5079 u16 handle;
5080
5081 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
5082
5083 if (list_empty(&ioc->sas_expander_list))
5084 return;
5085
5086 handle = 0xFFFF;
5087 while (!(mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
5088 MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
5089
5090 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5091 MPI2_IOCSTATUS_MASK;
5092 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
5093 break;
5094
5095 handle = le16_to_cpu(expander_pg0.DevHandle);
5096 sas_address = le64_to_cpu(expander_pg0.SASAddress);
5097 printk(KERN_INFO "\texpander present: handle(0x%04x), "
5098 "sas_addr(0x%016llx)\n", handle,
5099 (unsigned long long)sas_address);
5100 _scsih_mark_responding_expander(ioc, sas_address, handle);
5101 }
5102
5103 }
5104
5105 /**
5106 * _scsih_remove_unresponding_devices - removing unresponding devices
5107 * @ioc: per adapter object
5108 *
5109 * Return nothing.
5110 */
5111 static void
5112 _scsih_remove_unresponding_devices(struct MPT2SAS_ADAPTER *ioc)
5113 {
5114 struct _sas_device *sas_device, *sas_device_next;
5115 struct _sas_node *sas_expander;
5116 struct _raid_device *raid_device, *raid_device_next;
5117
5118
5119 list_for_each_entry_safe(sas_device, sas_device_next,
5120 &ioc->sas_device_list, list) {
5121 if (sas_device->responding) {
5122 sas_device->responding = 0;
5123 continue;
5124 }
5125 if (sas_device->starget)
5126 starget_printk(KERN_INFO, sas_device->starget,
5127 "removing: handle(0x%04x), sas_addr(0x%016llx), "
5128 "enclosure logical id(0x%016llx), slot(%d)\n",
5129 sas_device->handle,
5130 (unsigned long long)sas_device->sas_address,
5131 (unsigned long long)
5132 sas_device->enclosure_logical_id,
5133 sas_device->slot);
5134 _scsih_remove_device(ioc, sas_device->handle);
5135 }
5136
5137 list_for_each_entry_safe(raid_device, raid_device_next,
5138 &ioc->raid_device_list, list) {
5139 if (raid_device->responding) {
5140 raid_device->responding = 0;
5141 continue;
5142 }
5143 if (raid_device->starget) {
5144 starget_printk(KERN_INFO, raid_device->starget,
5145 "removing: handle(0x%04x), wwid(0x%016llx)\n",
5146 raid_device->handle,
5147 (unsigned long long)raid_device->wwid);
5148 scsi_remove_target(&raid_device->starget->dev);
5149 }
5150 _scsih_raid_device_remove(ioc, raid_device);
5151 }
5152
5153 retry_expander_search:
5154 sas_expander = NULL;
5155 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
5156 if (sas_expander->responding) {
5157 sas_expander->responding = 0;
5158 continue;
5159 }
5160 _scsih_expander_remove(ioc, sas_expander->handle);
5161 goto retry_expander_search;
5162 }
5163 }
5164
5165 /**
5166 * mpt2sas_scsih_reset_handler - reset callback handler (for scsih)
5167 * @ioc: per adapter object
5168 * @reset_phase: phase
5169 *
5170 * The handler for doing any required cleanup or initialization.
5171 *
5172 * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
5173 * MPT2_IOC_DONE_RESET
5174 *
5175 * Return nothing.
5176 */
5177 void
5178 mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
5179 {
5180 switch (reset_phase) {
5181 case MPT2_IOC_PRE_RESET:
5182 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
5183 "MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
5184 _scsih_fw_event_off(ioc);
5185 break;
5186 case MPT2_IOC_AFTER_RESET:
5187 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
5188 "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
5189 if (ioc->tm_cmds.status & MPT2_CMD_PENDING) {
5190 ioc->tm_cmds.status |= MPT2_CMD_RESET;
5191 mpt2sas_base_free_smid(ioc, ioc->tm_cmds.smid);
5192 complete(&ioc->tm_cmds.done);
5193 }
5194 _scsih_fw_event_on(ioc);
5195 _scsih_flush_running_cmds(ioc);
5196 break;
5197 case MPT2_IOC_DONE_RESET:
5198 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
5199 "MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
5200 _scsih_sas_host_refresh(ioc, 0);
5201 _scsih_search_responding_sas_devices(ioc);
5202 _scsih_search_responding_raid_devices(ioc);
5203 _scsih_search_responding_expanders(ioc);
5204 break;
5205 case MPT2_IOC_RUNNING:
5206 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
5207 "MPT2_IOC_RUNNING\n", ioc->name, __func__));
5208 _scsih_remove_unresponding_devices(ioc);
5209 break;
5210 }
5211 }
5212
5213 /**
5214 * _firmware_event_work - delayed task for processing firmware events
5215 * @ioc: per adapter object
5216 * @work: equal to the fw_event_work object
5217 * Context: user.
5218 *
5219 * Return nothing.
5220 */
5221 static void
5222 _firmware_event_work(struct work_struct *work)
5223 {
5224 struct fw_event_work *fw_event = container_of(work,
5225 struct fw_event_work, work);
5226 unsigned long flags;
5227 struct MPT2SAS_ADAPTER *ioc = fw_event->ioc;
5228
5229 /* the queue is being flushed so ignore this event */
5230 spin_lock_irqsave(&ioc->fw_event_lock, flags);
5231 if (ioc->fw_events_off || ioc->remove_host) {
5232 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
5233 _scsih_fw_event_free(ioc, fw_event);
5234 return;
5235 }
5236 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
5237
5238 if (ioc->shost_recovery) {
5239 _scsih_fw_event_requeue(ioc, fw_event, 1000);
5240 return;
5241 }
5242
5243 switch (fw_event->event) {
5244 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
5245 _scsih_sas_topology_change_event(ioc, fw_event->VF_ID,
5246 fw_event->event_data, fw_event);
5247 break;
5248 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
5249 _scsih_sas_device_status_change_event(ioc, fw_event->VF_ID,
5250 fw_event->event_data);
5251 break;
5252 case MPI2_EVENT_SAS_DISCOVERY:
5253 _scsih_sas_discovery_event(ioc, fw_event->VF_ID,
5254 fw_event->event_data);
5255 break;
5256 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
5257 _scsih_sas_broadcast_primative_event(ioc, fw_event->VF_ID,
5258 fw_event->event_data);
5259 break;
5260 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
5261 _scsih_sas_enclosure_dev_status_change_event(ioc,
5262 fw_event->VF_ID, fw_event->event_data);
5263 break;
5264 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
5265 _scsih_sas_ir_config_change_event(ioc, fw_event->VF_ID,
5266 fw_event->event_data);
5267 break;
5268 case MPI2_EVENT_IR_VOLUME:
5269 _scsih_sas_ir_volume_event(ioc, fw_event->VF_ID,
5270 fw_event->event_data);
5271 break;
5272 case MPI2_EVENT_IR_PHYSICAL_DISK:
5273 _scsih_sas_ir_physical_disk_event(ioc, fw_event->VF_ID,
5274 fw_event->event_data);
5275 break;
5276 case MPI2_EVENT_IR_OPERATION_STATUS:
5277 _scsih_sas_ir_operation_status_event(ioc, fw_event->VF_ID,
5278 fw_event->event_data);
5279 break;
5280 case MPI2_EVENT_TASK_SET_FULL:
5281 _scsih_task_set_full(ioc, fw_event->VF_ID,
5282 fw_event->event_data);
5283 break;
5284 }
5285 _scsih_fw_event_free(ioc, fw_event);
5286 }
5287
5288 /**
5289 * mpt2sas_scsih_event_callback - firmware event handler (called at ISR time)
5290 * @ioc: per adapter object
5291 * @VF_ID: virtual function id
5292 * @reply: reply message frame(lower 32bit addr)
5293 * Context: interrupt.
5294 *
5295 * This function merely adds a new work task into ioc->firmware_event_thread.
5296 * The tasks are worked from _firmware_event_work in user context.
5297 *
5298 * Return nothing.
5299 */
5300 void
5301 mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID, u32 reply)
5302 {
5303 struct fw_event_work *fw_event;
5304 Mpi2EventNotificationReply_t *mpi_reply;
5305 unsigned long flags;
5306 u16 event;
5307
5308 /* events turned off due to host reset or driver unloading */
5309 spin_lock_irqsave(&ioc->fw_event_lock, flags);
5310 if (ioc->fw_events_off || ioc->remove_host) {
5311 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
5312 return;
5313 }
5314 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
5315
5316 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
5317 event = le16_to_cpu(mpi_reply->Event);
5318
5319 switch (event) {
5320 /* handle these */
5321 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
5322 {
5323 Mpi2EventDataSasBroadcastPrimitive_t *baen_data =
5324 (Mpi2EventDataSasBroadcastPrimitive_t *)
5325 mpi_reply->EventData;
5326
5327 if (baen_data->Primitive !=
5328 MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT ||
5329 ioc->broadcast_aen_busy)
5330 return;
5331 ioc->broadcast_aen_busy = 1;
5332 break;
5333 }
5334
5335 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
5336 _scsih_check_topo_delete_events(ioc,
5337 (Mpi2EventDataSasTopologyChangeList_t *)
5338 mpi_reply->EventData);
5339 break;
5340
5341 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
5342 case MPI2_EVENT_IR_OPERATION_STATUS:
5343 case MPI2_EVENT_SAS_DISCOVERY:
5344 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
5345 case MPI2_EVENT_IR_VOLUME:
5346 case MPI2_EVENT_IR_PHYSICAL_DISK:
5347 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
5348 case MPI2_EVENT_TASK_SET_FULL:
5349 break;
5350
5351 default: /* ignore the rest */
5352 return;
5353 }
5354
5355 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
5356 if (!fw_event) {
5357 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5358 ioc->name, __FILE__, __LINE__, __func__);
5359 return;
5360 }
5361 fw_event->event_data =
5362 kzalloc(mpi_reply->EventDataLength*4, GFP_ATOMIC);
5363 if (!fw_event->event_data) {
5364 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5365 ioc->name, __FILE__, __LINE__, __func__);
5366 kfree(fw_event);
5367 return;
5368 }
5369
5370 memcpy(fw_event->event_data, mpi_reply->EventData,
5371 mpi_reply->EventDataLength*4);
5372 fw_event->ioc = ioc;
5373 fw_event->VF_ID = VF_ID;
5374 fw_event->event = event;
5375 _scsih_fw_event_add(ioc, fw_event);
5376 }
5377
5378 /* shost template */
5379 static struct scsi_host_template scsih_driver_template = {
5380 .module = THIS_MODULE,
5381 .name = "Fusion MPT SAS Host",
5382 .proc_name = MPT2SAS_DRIVER_NAME,
5383 .queuecommand = _scsih_qcmd,
5384 .target_alloc = _scsih_target_alloc,
5385 .slave_alloc = _scsih_slave_alloc,
5386 .slave_configure = _scsih_slave_configure,
5387 .target_destroy = _scsih_target_destroy,
5388 .slave_destroy = _scsih_slave_destroy,
5389 .change_queue_depth = _scsih_change_queue_depth,
5390 .change_queue_type = _scsih_change_queue_type,
5391 .eh_abort_handler = _scsih_abort,
5392 .eh_device_reset_handler = _scsih_dev_reset,
5393 .eh_target_reset_handler = _scsih_target_reset,
5394 .eh_host_reset_handler = _scsih_host_reset,
5395 .bios_param = _scsih_bios_param,
5396 .can_queue = 1,
5397 .this_id = -1,
5398 .sg_tablesize = MPT2SAS_SG_DEPTH,
5399 .max_sectors = 8192,
5400 .cmd_per_lun = 7,
5401 .use_clustering = ENABLE_CLUSTERING,
5402 .shost_attrs = mpt2sas_host_attrs,
5403 .sdev_attrs = mpt2sas_dev_attrs,
5404 };
5405
5406 /**
5407 * _scsih_expander_node_remove - removing expander device from list.
5408 * @ioc: per adapter object
5409 * @sas_expander: the sas_device object
5410 * Context: Calling function should acquire ioc->sas_node_lock.
5411 *
5412 * Removing object and freeing associated memory from the
5413 * ioc->sas_expander_list.
5414 *
5415 * Return nothing.
5416 */
5417 static void
5418 _scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
5419 struct _sas_node *sas_expander)
5420 {
5421 struct _sas_port *mpt2sas_port;
5422 struct _sas_device *sas_device;
5423 struct _sas_node *expander_sibling;
5424 unsigned long flags;
5425
5426 if (!sas_expander)
5427 return;
5428
5429 /* remove sibling ports attached to this expander */
5430 retry_device_search:
5431 list_for_each_entry(mpt2sas_port,
5432 &sas_expander->sas_port_list, port_list) {
5433 if (mpt2sas_port->remote_identify.device_type ==
5434 SAS_END_DEVICE) {
5435 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5436 sas_device =
5437 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
5438 mpt2sas_port->remote_identify.sas_address);
5439 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5440 if (!sas_device)
5441 continue;
5442 _scsih_remove_device(ioc, sas_device->handle);
5443 if (ioc->shost_recovery)
5444 return;
5445 goto retry_device_search;
5446 }
5447 }
5448
5449 retry_expander_search:
5450 list_for_each_entry(mpt2sas_port,
5451 &sas_expander->sas_port_list, port_list) {
5452
5453 if (mpt2sas_port->remote_identify.device_type ==
5454 MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER ||
5455 mpt2sas_port->remote_identify.device_type ==
5456 MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) {
5457
5458 spin_lock_irqsave(&ioc->sas_node_lock, flags);
5459 expander_sibling =
5460 mpt2sas_scsih_expander_find_by_sas_address(
5461 ioc, mpt2sas_port->remote_identify.sas_address);
5462 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
5463 if (!expander_sibling)
5464 continue;
5465 _scsih_expander_remove(ioc, expander_sibling->handle);
5466 if (ioc->shost_recovery)
5467 return;
5468 goto retry_expander_search;
5469 }
5470 }
5471
5472 mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
5473 sas_expander->parent_handle);
5474
5475 printk(MPT2SAS_INFO_FMT "expander_remove: handle"
5476 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name,
5477 sas_expander->handle, (unsigned long long)
5478 sas_expander->sas_address);
5479
5480 list_del(&sas_expander->list);
5481 kfree(sas_expander->phy);
5482 kfree(sas_expander);
5483 }
5484
5485 /**
5486 * _scsih_remove - detach and remove add host
5487 * @pdev: PCI device struct
5488 *
5489 * Return nothing.
5490 */
5491 static void __devexit
5492 _scsih_remove(struct pci_dev *pdev)
5493 {
5494 struct Scsi_Host *shost = pci_get_drvdata(pdev);
5495 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
5496 struct _sas_port *mpt2sas_port;
5497 struct _sas_device *sas_device;
5498 struct _sas_node *expander_sibling;
5499 struct _raid_device *raid_device, *next;
5500 struct MPT2SAS_TARGET *sas_target_priv_data;
5501 struct workqueue_struct *wq;
5502 unsigned long flags;
5503
5504 ioc->remove_host = 1;
5505 _scsih_fw_event_off(ioc);
5506
5507 spin_lock_irqsave(&ioc->fw_event_lock, flags);
5508 wq = ioc->firmware_event_thread;
5509 ioc->firmware_event_thread = NULL;
5510 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
5511 if (wq)
5512 destroy_workqueue(wq);
5513
5514 /* release all the volumes */
5515 list_for_each_entry_safe(raid_device, next, &ioc->raid_device_list,
5516 list) {
5517 if (raid_device->starget) {
5518 sas_target_priv_data =
5519 raid_device->starget->hostdata;
5520 sas_target_priv_data->deleted = 1;
5521 scsi_remove_target(&raid_device->starget->dev);
5522 }
5523 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), wwid"
5524 "(0x%016llx)\n", ioc->name, raid_device->handle,
5525 (unsigned long long) raid_device->wwid);
5526 _scsih_raid_device_remove(ioc, raid_device);
5527 }
5528
5529 /* free ports attached to the sas_host */
5530 retry_again:
5531 list_for_each_entry(mpt2sas_port,
5532 &ioc->sas_hba.sas_port_list, port_list) {
5533 if (mpt2sas_port->remote_identify.device_type ==
5534 SAS_END_DEVICE) {
5535 sas_device =
5536 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
5537 mpt2sas_port->remote_identify.sas_address);
5538 if (sas_device) {
5539 _scsih_remove_device(ioc, sas_device->handle);
5540 goto retry_again;
5541 }
5542 } else {
5543 expander_sibling =
5544 mpt2sas_scsih_expander_find_by_sas_address(ioc,
5545 mpt2sas_port->remote_identify.sas_address);
5546 if (expander_sibling) {
5547 _scsih_expander_remove(ioc,
5548 expander_sibling->handle);
5549 goto retry_again;
5550 }
5551 }
5552 }
5553
5554 /* free phys attached to the sas_host */
5555 if (ioc->sas_hba.num_phys) {
5556 kfree(ioc->sas_hba.phy);
5557 ioc->sas_hba.phy = NULL;
5558 ioc->sas_hba.num_phys = 0;
5559 }
5560
5561 sas_remove_host(shost);
5562 mpt2sas_base_detach(ioc);
5563 list_del(&ioc->list);
5564 scsi_remove_host(shost);
5565 scsi_host_put(shost);
5566 }
5567
5568 /**
5569 * _scsih_probe_boot_devices - reports 1st device
5570 * @ioc: per adapter object
5571 *
5572 * If specified in bios page 2, this routine reports the 1st
5573 * device scsi-ml or sas transport for persistent boot device
5574 * purposes. Please refer to function _scsih_determine_boot_device()
5575 */
5576 static void
5577 _scsih_probe_boot_devices(struct MPT2SAS_ADAPTER *ioc)
5578 {
5579 u8 is_raid;
5580 void *device;
5581 struct _sas_device *sas_device;
5582 struct _raid_device *raid_device;
5583 u16 handle, parent_handle;
5584 u64 sas_address;
5585 unsigned long flags;
5586 int rc;
5587
5588 device = NULL;
5589 if (ioc->req_boot_device.device) {
5590 device = ioc->req_boot_device.device;
5591 is_raid = ioc->req_boot_device.is_raid;
5592 } else if (ioc->req_alt_boot_device.device) {
5593 device = ioc->req_alt_boot_device.device;
5594 is_raid = ioc->req_alt_boot_device.is_raid;
5595 } else if (ioc->current_boot_device.device) {
5596 device = ioc->current_boot_device.device;
5597 is_raid = ioc->current_boot_device.is_raid;
5598 }
5599
5600 if (!device)
5601 return;
5602
5603 if (is_raid) {
5604 raid_device = device;
5605 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
5606 raid_device->id, 0);
5607 if (rc)
5608 _scsih_raid_device_remove(ioc, raid_device);
5609 } else {
5610 sas_device = device;
5611 handle = sas_device->handle;
5612 parent_handle = sas_device->parent_handle;
5613 sas_address = sas_device->sas_address;
5614 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5615 list_move_tail(&sas_device->list, &ioc->sas_device_list);
5616 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5617 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
5618 sas_device->parent_handle)) {
5619 _scsih_sas_device_remove(ioc, sas_device);
5620 } else if (!sas_device->starget) {
5621 mpt2sas_transport_port_remove(ioc, sas_address,
5622 parent_handle);
5623 _scsih_sas_device_remove(ioc, sas_device);
5624 }
5625 }
5626 }
5627
5628 /**
5629 * _scsih_probe_raid - reporting raid volumes to scsi-ml
5630 * @ioc: per adapter object
5631 *
5632 * Called during initial loading of the driver.
5633 */
5634 static void
5635 _scsih_probe_raid(struct MPT2SAS_ADAPTER *ioc)
5636 {
5637 struct _raid_device *raid_device, *raid_next;
5638 int rc;
5639
5640 list_for_each_entry_safe(raid_device, raid_next,
5641 &ioc->raid_device_list, list) {
5642 if (raid_device->starget)
5643 continue;
5644 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
5645 raid_device->id, 0);
5646 if (rc)
5647 _scsih_raid_device_remove(ioc, raid_device);
5648 }
5649 }
5650
5651 /**
5652 * _scsih_probe_sas - reporting raid volumes to sas transport
5653 * @ioc: per adapter object
5654 *
5655 * Called during initial loading of the driver.
5656 */
5657 static void
5658 _scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc)
5659 {
5660 struct _sas_device *sas_device, *next;
5661 unsigned long flags;
5662 u16 handle, parent_handle;
5663 u64 sas_address;
5664
5665 /* SAS Device List */
5666 list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list,
5667 list) {
5668 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5669 list_move_tail(&sas_device->list, &ioc->sas_device_list);
5670 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5671
5672 handle = sas_device->handle;
5673 parent_handle = sas_device->parent_handle;
5674 sas_address = sas_device->sas_address;
5675 if (!mpt2sas_transport_port_add(ioc, handle, parent_handle)) {
5676 _scsih_sas_device_remove(ioc, sas_device);
5677 } else if (!sas_device->starget) {
5678 mpt2sas_transport_port_remove(ioc, sas_address,
5679 parent_handle);
5680 _scsih_sas_device_remove(ioc, sas_device);
5681 }
5682 }
5683 }
5684
5685 /**
5686 * _scsih_probe_devices - probing for devices
5687 * @ioc: per adapter object
5688 *
5689 * Called during initial loading of the driver.
5690 */
5691 static void
5692 _scsih_probe_devices(struct MPT2SAS_ADAPTER *ioc)
5693 {
5694 u16 volume_mapping_flags =
5695 le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) &
5696 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
5697
5698 if (!(ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR))
5699 return; /* return when IOC doesn't support initiator mode */
5700
5701 _scsih_probe_boot_devices(ioc);
5702
5703 if (ioc->ir_firmware) {
5704 if ((volume_mapping_flags &
5705 MPI2_IOCPAGE8_IRFLAGS_HIGH_VOLUME_MAPPING)) {
5706 _scsih_probe_sas(ioc);
5707 _scsih_probe_raid(ioc);
5708 } else {
5709 _scsih_probe_raid(ioc);
5710 _scsih_probe_sas(ioc);
5711 }
5712 } else
5713 _scsih_probe_sas(ioc);
5714 }
5715
5716 /**
5717 * _scsih_probe - attach and add scsi host
5718 * @pdev: PCI device struct
5719 * @id: pci device id
5720 *
5721 * Returns 0 success, anything else error.
5722 */
5723 static int
5724 _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
5725 {
5726 struct MPT2SAS_ADAPTER *ioc;
5727 struct Scsi_Host *shost;
5728
5729 shost = scsi_host_alloc(&scsih_driver_template,
5730 sizeof(struct MPT2SAS_ADAPTER));
5731 if (!shost)
5732 return -ENODEV;
5733
5734 /* init local params */
5735 ioc = shost_priv(shost);
5736 memset(ioc, 0, sizeof(struct MPT2SAS_ADAPTER));
5737 INIT_LIST_HEAD(&ioc->list);
5738 list_add_tail(&ioc->list, &mpt2sas_ioc_list);
5739 ioc->shost = shost;
5740 ioc->id = mpt_ids++;
5741 sprintf(ioc->name, "%s%d", MPT2SAS_DRIVER_NAME, ioc->id);
5742 ioc->pdev = pdev;
5743 ioc->scsi_io_cb_idx = scsi_io_cb_idx;
5744 ioc->tm_cb_idx = tm_cb_idx;
5745 ioc->ctl_cb_idx = ctl_cb_idx;
5746 ioc->base_cb_idx = base_cb_idx;
5747 ioc->transport_cb_idx = transport_cb_idx;
5748 ioc->config_cb_idx = config_cb_idx;
5749 ioc->logging_level = logging_level;
5750 /* misc semaphores and spin locks */
5751 spin_lock_init(&ioc->ioc_reset_in_progress_lock);
5752 spin_lock_init(&ioc->scsi_lookup_lock);
5753 spin_lock_init(&ioc->sas_device_lock);
5754 spin_lock_init(&ioc->sas_node_lock);
5755 spin_lock_init(&ioc->fw_event_lock);
5756 spin_lock_init(&ioc->raid_device_lock);
5757
5758 INIT_LIST_HEAD(&ioc->sas_device_list);
5759 INIT_LIST_HEAD(&ioc->sas_device_init_list);
5760 INIT_LIST_HEAD(&ioc->sas_expander_list);
5761 INIT_LIST_HEAD(&ioc->fw_event_list);
5762 INIT_LIST_HEAD(&ioc->raid_device_list);
5763 INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list);
5764
5765 /* init shost parameters */
5766 shost->max_cmd_len = 16;
5767 shost->max_lun = max_lun;
5768 shost->transportt = mpt2sas_transport_template;
5769 shost->unique_id = ioc->id;
5770
5771 if ((scsi_add_host(shost, &pdev->dev))) {
5772 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5773 ioc->name, __FILE__, __LINE__, __func__);
5774 list_del(&ioc->list);
5775 goto out_add_shost_fail;
5776 }
5777
5778 scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
5779 | SHOST_DIF_TYPE3_PROTECTION);
5780
5781 /* event thread */
5782 snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
5783 "fw_event%d", ioc->id);
5784 ioc->firmware_event_thread = create_singlethread_workqueue(
5785 ioc->firmware_event_name);
5786 if (!ioc->firmware_event_thread) {
5787 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5788 ioc->name, __FILE__, __LINE__, __func__);
5789 goto out_thread_fail;
5790 }
5791
5792 ioc->wait_for_port_enable_to_complete = 1;
5793 if ((mpt2sas_base_attach(ioc))) {
5794 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5795 ioc->name, __FILE__, __LINE__, __func__);
5796 goto out_attach_fail;
5797 }
5798
5799 ioc->wait_for_port_enable_to_complete = 0;
5800 _scsih_probe_devices(ioc);
5801 return 0;
5802
5803 out_attach_fail:
5804 destroy_workqueue(ioc->firmware_event_thread);
5805 out_thread_fail:
5806 list_del(&ioc->list);
5807 scsi_remove_host(shost);
5808 out_add_shost_fail:
5809 return -ENODEV;
5810 }
5811
5812 #ifdef CONFIG_PM
5813 /**
5814 * _scsih_suspend - power management suspend main entry point
5815 * @pdev: PCI device struct
5816 * @state: PM state change to (usually PCI_D3)
5817 *
5818 * Returns 0 success, anything else error.
5819 */
5820 static int
5821 _scsih_suspend(struct pci_dev *pdev, pm_message_t state)
5822 {
5823 struct Scsi_Host *shost = pci_get_drvdata(pdev);
5824 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
5825 u32 device_state;
5826
5827 mpt2sas_base_stop_watchdog(ioc);
5828 flush_scheduled_work();
5829 scsi_block_requests(shost);
5830 device_state = pci_choose_state(pdev, state);
5831 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, entering "
5832 "operating state [D%d]\n", ioc->name, pdev,
5833 pci_name(pdev), device_state);
5834
5835 mpt2sas_base_free_resources(ioc);
5836 pci_save_state(pdev);
5837 pci_disable_device(pdev);
5838 pci_set_power_state(pdev, device_state);
5839 return 0;
5840 }
5841
5842 /**
5843 * _scsih_resume - power management resume main entry point
5844 * @pdev: PCI device struct
5845 *
5846 * Returns 0 success, anything else error.
5847 */
5848 static int
5849 _scsih_resume(struct pci_dev *pdev)
5850 {
5851 struct Scsi_Host *shost = pci_get_drvdata(pdev);
5852 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
5853 u32 device_state = pdev->current_state;
5854 int r;
5855
5856 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, previous "
5857 "operating state [D%d]\n", ioc->name, pdev,
5858 pci_name(pdev), device_state);
5859
5860 pci_set_power_state(pdev, PCI_D0);
5861 pci_enable_wake(pdev, PCI_D0, 0);
5862 pci_restore_state(pdev);
5863 ioc->pdev = pdev;
5864 r = mpt2sas_base_map_resources(ioc);
5865 if (r)
5866 return r;
5867
5868 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, SOFT_RESET);
5869 scsi_unblock_requests(shost);
5870 mpt2sas_base_start_watchdog(ioc);
5871 return 0;
5872 }
5873 #endif /* CONFIG_PM */
5874
5875
5876 static struct pci_driver scsih_driver = {
5877 .name = MPT2SAS_DRIVER_NAME,
5878 .id_table = scsih_pci_table,
5879 .probe = _scsih_probe,
5880 .remove = __devexit_p(_scsih_remove),
5881 #ifdef CONFIG_PM
5882 .suspend = _scsih_suspend,
5883 .resume = _scsih_resume,
5884 #endif
5885 };
5886
5887
5888 /**
5889 * _scsih_init - main entry point for this driver.
5890 *
5891 * Returns 0 success, anything else error.
5892 */
5893 static int __init
5894 _scsih_init(void)
5895 {
5896 int error;
5897
5898 mpt_ids = 0;
5899 printk(KERN_INFO "%s version %s loaded\n", MPT2SAS_DRIVER_NAME,
5900 MPT2SAS_DRIVER_VERSION);
5901
5902 mpt2sas_transport_template =
5903 sas_attach_transport(&mpt2sas_transport_functions);
5904 if (!mpt2sas_transport_template)
5905 return -ENODEV;
5906
5907 mpt2sas_base_initialize_callback_handler();
5908
5909 /* queuecommand callback hander */
5910 scsi_io_cb_idx = mpt2sas_base_register_callback_handler(_scsih_io_done);
5911
5912 /* task managment callback handler */
5913 tm_cb_idx = mpt2sas_base_register_callback_handler(_scsih_tm_done);
5914
5915 /* base internal commands callback handler */
5916 base_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_base_done);
5917
5918 /* transport internal commands callback handler */
5919 transport_cb_idx = mpt2sas_base_register_callback_handler(
5920 mpt2sas_transport_done);
5921
5922 /* configuration page API internal commands callback handler */
5923 config_cb_idx = mpt2sas_base_register_callback_handler(
5924 mpt2sas_config_done);
5925
5926 /* ctl module callback handler */
5927 ctl_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_ctl_done);
5928
5929 mpt2sas_ctl_init();
5930
5931 error = pci_register_driver(&scsih_driver);
5932 if (error)
5933 sas_release_transport(mpt2sas_transport_template);
5934
5935 return error;
5936 }
5937
5938 /**
5939 * _scsih_exit - exit point for this driver (when it is a module).
5940 *
5941 * Returns 0 success, anything else error.
5942 */
5943 static void __exit
5944 _scsih_exit(void)
5945 {
5946 printk(KERN_INFO "mpt2sas version %s unloading\n",
5947 MPT2SAS_DRIVER_VERSION);
5948
5949 pci_unregister_driver(&scsih_driver);
5950
5951 sas_release_transport(mpt2sas_transport_template);
5952 mpt2sas_base_release_callback_handler(scsi_io_cb_idx);
5953 mpt2sas_base_release_callback_handler(tm_cb_idx);
5954 mpt2sas_base_release_callback_handler(base_cb_idx);
5955 mpt2sas_base_release_callback_handler(transport_cb_idx);
5956 mpt2sas_base_release_callback_handler(config_cb_idx);
5957 mpt2sas_base_release_callback_handler(ctl_cb_idx);
5958
5959 mpt2sas_ctl_exit();
5960 }
5961
5962 module_init(_scsih_init);
5963 module_exit(_scsih_exit);
5964
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