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Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
[linux-block.git] / drivers / scsi / mpt2sas / mpt2sas_scsih.c
CommitLineData
635374e7
EM		 1/*
2 * Scsi Host Layer for MPT (Message Passing Technology) based controllers
3 *
4 * This code is based on drivers/scsi/mpt2sas/mpt2_scsih.c
5 * Copyright (C) 2007-2008 LSI Corporation
6 * (mailto:DL-MPTFusionLinux@lsi.com)
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * NO WARRANTY
19 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
20 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
21 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
22 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
23 * solely responsible for determining the appropriateness of using and
24 * distributing the Program and assumes all risks associated with its
25 * exercise of rights under this Agreement, including but not limited to
26 * the risks and costs of program errors, damage to or loss of data,
27 * programs or equipment, and unavailability or interruption of operations.
28
29 * DISCLAIMER OF LIABILITY
30 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
31 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
33 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
34 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
35 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
36 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
37
38 * You should have received a copy of the GNU General Public License
39 * along with this program; if not, write to the Free Software
40 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
41 * USA.
42 */
43
44#include <linux/version.h>
45#include <linux/module.h>
46#include <linux/kernel.h>
47#include <linux/init.h>
48#include <linux/errno.h>
49#include <linux/blkdev.h>
50#include <linux/sched.h>
51#include <linux/workqueue.h>
52#include <linux/delay.h>
53#include <linux/pci.h>
54#include <linux/interrupt.h>
55
56#include "mpt2sas_base.h"
57
58MODULE_AUTHOR(MPT2SAS_AUTHOR);
59MODULE_DESCRIPTION(MPT2SAS_DESCRIPTION);
60MODULE_LICENSE("GPL");
61MODULE_VERSION(MPT2SAS_DRIVER_VERSION);
62
63#define RAID_CHANNEL 1
64
65/* forward proto's */
66static void _scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
67 struct _sas_node *sas_expander);
68static void _firmware_event_work(struct work_struct *work);
69
70/* global parameters */
ba33fadf 71LIST_HEAD(mpt2sas_ioc_list);
635374e7
EM		 72
73/* local parameters */
635374e7
EM		 74static u8 scsi_io_cb_idx = -1;
75static u8 tm_cb_idx = -1;
76static u8 ctl_cb_idx = -1;
77static u8 base_cb_idx = -1;
78static u8 transport_cb_idx = -1;
79static u8 config_cb_idx = -1;
80static int mpt_ids;
81
82/* command line options */
ba33fadf 83static u32 logging_level;
635374e7
EM		 84MODULE_PARM_DESC(logging_level, " bits for enabling additional logging info "
85 "(default=0)");
86
87/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
88#define MPT2SAS_MAX_LUN (16895)
89static int max_lun = MPT2SAS_MAX_LUN;
90module_param(max_lun, int, 0);
91MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
92
93/**
94 * struct sense_info - common structure for obtaining sense keys
95 * @skey: sense key
96 * @asc: additional sense code
97 * @ascq: additional sense code qualifier
98 */
99struct sense_info {
100 u8 skey;
101 u8 asc;
102 u8 ascq;
103};
104
105
106#define MPT2SAS_RESCAN_AFTER_HOST_RESET (0xFFFF)
107/**
108 * struct fw_event_work - firmware event struct
109 * @list: link list framework
110 * @work: work object (ioc->fault_reset_work_q)
111 * @ioc: per adapter object
112 * @VF_ID: virtual function id
113 * @host_reset_handling: handling events during host reset
114 * @ignore: flag meaning this event has been marked to ignore
115 * @event: firmware event MPI2_EVENT_XXX defined in mpt2_ioc.h
116 * @event_data: reply event data payload follows
117 *
118 * This object stored on ioc->fw_event_list.
119 */
120struct fw_event_work {
121 struct list_head list;
6f92a7a0 122 struct work_struct work;
635374e7
EM		 123 struct MPT2SAS_ADAPTER *ioc;
124 u8 VF_ID;
125 u8 host_reset_handling;
126 u8 ignore;
127 u16 event;
128 void *event_data;
129};
130
131/**
132 * struct _scsi_io_transfer - scsi io transfer
133 * @handle: sas device handle (assigned by firmware)
134 * @is_raid: flag set for hidden raid components
135 * @dir: DMA_TO_DEVICE, DMA_FROM_DEVICE,
136 * @data_length: data transfer length
137 * @data_dma: dma pointer to data
138 * @sense: sense data
139 * @lun: lun number
140 * @cdb_length: cdb length
141 * @cdb: cdb contents
142 * @valid_reply: flag set for reply message
143 * @timeout: timeout for this command
144 * @sense_length: sense length
145 * @ioc_status: ioc status
146 * @scsi_state: scsi state
147 * @scsi_status: scsi staus
148 * @log_info: log information
149 * @transfer_length: data length transfer when there is a reply message
150 *
151 * Used for sending internal scsi commands to devices within this module.
152 * Refer to _scsi_send_scsi_io().
153 */
154struct _scsi_io_transfer {
155 u16 handle;
156 u8 is_raid;
157 enum dma_data_direction dir;
158 u32 data_length;
159 dma_addr_t data_dma;
160 u8 sense[SCSI_SENSE_BUFFERSIZE];
161 u32 lun;
162 u8 cdb_length;
163 u8 cdb[32];
164 u8 timeout;
165 u8 valid_reply;
166 /* the following bits are only valid when 'valid_reply = 1' */
167 u32 sense_length;
168 u16 ioc_status;
169 u8 scsi_state;
170 u8 scsi_status;
171 u32 log_info;
172 u32 transfer_length;
173};
174
175/*
176 * The pci device ids are defined in mpi/mpi2_cnfg.h.
177 */
178static struct pci_device_id scsih_pci_table[] = {
179 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004,
180 PCI_ANY_ID, PCI_ANY_ID },
181 /* Falcon ~ 2008*/
182 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2008,
183 PCI_ANY_ID, PCI_ANY_ID },
184 /* Liberator ~ 2108 */
185 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_1,
186 PCI_ANY_ID, PCI_ANY_ID },
187 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_2,
188 PCI_ANY_ID, PCI_ANY_ID },
189 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_3,
190 PCI_ANY_ID, PCI_ANY_ID },
191 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_1,
192 PCI_ANY_ID, PCI_ANY_ID },
193 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2,
194 PCI_ANY_ID, PCI_ANY_ID },
195 {0} /* Terminating entry */
196};
197MODULE_DEVICE_TABLE(pci, scsih_pci_table);
198
199/**
d5d135b3 200 * _scsih_set_debug_level - global setting of ioc->logging_level.
635374e7
EM		 201 *
202 * Note: The logging levels are defined in mpt2sas_debug.h.
203 */
204static int
d5d135b3 205_scsih_set_debug_level(const char *val, struct kernel_param *kp)
635374e7
EM		 206{
207 int ret = param_set_int(val, kp);
208 struct MPT2SAS_ADAPTER *ioc;
209
210 if (ret)
211 return ret;
212
213 printk(KERN_INFO "setting logging_level(0x%08x)\n", logging_level);
ba33fadf 214 list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
635374e7
EM		 215 ioc->logging_level = logging_level;
216 return 0;
217}
d5d135b3 218module_param_call(logging_level, _scsih_set_debug_level, param_get_int,
635374e7
EM		 219 &logging_level, 0644);
220
221/**
222 * _scsih_srch_boot_sas_address - search based on sas_address
223 * @sas_address: sas address
224 * @boot_device: boot device object from bios page 2
225 *
226 * Returns 1 when there's a match, 0 means no match.
227 */
228static inline int
229_scsih_srch_boot_sas_address(u64 sas_address,
230 Mpi2BootDeviceSasWwid_t *boot_device)
231{
232 return (sas_address == le64_to_cpu(boot_device->SASAddress)) ? 1 : 0;
233}
234
235/**
236 * _scsih_srch_boot_device_name - search based on device name
237 * @device_name: device name specified in INDENTIFY fram
238 * @boot_device: boot device object from bios page 2
239 *
240 * Returns 1 when there's a match, 0 means no match.
241 */
242static inline int
243_scsih_srch_boot_device_name(u64 device_name,
244 Mpi2BootDeviceDeviceName_t *boot_device)
245{
246 return (device_name == le64_to_cpu(boot_device->DeviceName)) ? 1 : 0;
247}
248
249/**
250 * _scsih_srch_boot_encl_slot - search based on enclosure_logical_id/slot
251 * @enclosure_logical_id: enclosure logical id
252 * @slot_number: slot number
253 * @boot_device: boot device object from bios page 2
254 *
255 * Returns 1 when there's a match, 0 means no match.
256 */
257static inline int
258_scsih_srch_boot_encl_slot(u64 enclosure_logical_id, u16 slot_number,
259 Mpi2BootDeviceEnclosureSlot_t *boot_device)
260{
261 return (enclosure_logical_id == le64_to_cpu(boot_device->
262 EnclosureLogicalID) && slot_number == le16_to_cpu(boot_device->
263 SlotNumber)) ? 1 : 0;
264}
265
266/**
267 * _scsih_is_boot_device - search for matching boot device.
268 * @sas_address: sas address
269 * @device_name: device name specified in INDENTIFY fram
270 * @enclosure_logical_id: enclosure logical id
271 * @slot_number: slot number
272 * @form: specifies boot device form
273 * @boot_device: boot device object from bios page 2
274 *
275 * Returns 1 when there's a match, 0 means no match.
276 */
277static int
278_scsih_is_boot_device(u64 sas_address, u64 device_name,
279 u64 enclosure_logical_id, u16 slot, u8 form,
280 Mpi2BiosPage2BootDevice_t *boot_device)
281{
282 int rc = 0;
283
284 switch (form) {
285 case MPI2_BIOSPAGE2_FORM_SAS_WWID:
286 if (!sas_address)
287 break;
288 rc = _scsih_srch_boot_sas_address(
289 sas_address, &boot_device->SasWwid);
290 break;
291 case MPI2_BIOSPAGE2_FORM_ENCLOSURE_SLOT:
292 if (!enclosure_logical_id)
293 break;
294 rc = _scsih_srch_boot_encl_slot(
295 enclosure_logical_id,
296 slot, &boot_device->EnclosureSlot);
297 break;
298 case MPI2_BIOSPAGE2_FORM_DEVICE_NAME:
299 if (!device_name)
300 break;
301 rc = _scsih_srch_boot_device_name(
302 device_name, &boot_device->DeviceName);
303 break;
304 case MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED:
305 break;
306 }
307
308 return rc;
309}
310
311/**
312 * _scsih_determine_boot_device - determine boot device.
313 * @ioc: per adapter object
314 * @device: either sas_device or raid_device object
315 * @is_raid: [flag] 1 = raid object, 0 = sas object
316 *
317 * Determines whether this device should be first reported device to
318 * to scsi-ml or sas transport, this purpose is for persistant boot device.
319 * There are primary, alternate, and current entries in bios page 2. The order
320 * priority is primary, alternate, then current. This routine saves
321 * the corresponding device object and is_raid flag in the ioc object.
322 * The saved data to be used later in _scsih_probe_boot_devices().
323 */
324static void
325_scsih_determine_boot_device(struct MPT2SAS_ADAPTER *ioc,
326 void *device, u8 is_raid)
327{
328 struct _sas_device *sas_device;
329 struct _raid_device *raid_device;
330 u64 sas_address;
331 u64 device_name;
332 u64 enclosure_logical_id;
333 u16 slot;
334
335 /* only process this function when driver loads */
336 if (!ioc->wait_for_port_enable_to_complete)
337 return;
338
339 if (!is_raid) {
340 sas_device = device;
341 sas_address = sas_device->sas_address;
342 device_name = sas_device->device_name;
343 enclosure_logical_id = sas_device->enclosure_logical_id;
344 slot = sas_device->slot;
345 } else {
346 raid_device = device;
347 sas_address = raid_device->wwid;
348 device_name = 0;
349 enclosure_logical_id = 0;
350 slot = 0;
351 }
352
353 if (!ioc->req_boot_device.device) {
354 if (_scsih_is_boot_device(sas_address, device_name,
355 enclosure_logical_id, slot,
356 (ioc->bios_pg2.ReqBootDeviceForm &
357 MPI2_BIOSPAGE2_FORM_MASK),
358 &ioc->bios_pg2.RequestedBootDevice)) {
359 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
360 "%s: req_boot_device(0x%016llx)\n",
361 ioc->name, __func__,
362 (unsigned long long)sas_address));
363 ioc->req_boot_device.device = device;
364 ioc->req_boot_device.is_raid = is_raid;
365 }
366 }
367
368 if (!ioc->req_alt_boot_device.device) {
369 if (_scsih_is_boot_device(sas_address, device_name,
370 enclosure_logical_id, slot,
371 (ioc->bios_pg2.ReqAltBootDeviceForm &
372 MPI2_BIOSPAGE2_FORM_MASK),
373 &ioc->bios_pg2.RequestedAltBootDevice)) {
374 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
375 "%s: req_alt_boot_device(0x%016llx)\n",
376 ioc->name, __func__,
377 (unsigned long long)sas_address));
378 ioc->req_alt_boot_device.device = device;
379 ioc->req_alt_boot_device.is_raid = is_raid;
380 }
381 }
382
383 if (!ioc->current_boot_device.device) {
384 if (_scsih_is_boot_device(sas_address, device_name,
385 enclosure_logical_id, slot,
386 (ioc->bios_pg2.CurrentBootDeviceForm &
387 MPI2_BIOSPAGE2_FORM_MASK),
388 &ioc->bios_pg2.CurrentBootDevice)) {
389 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
390 "%s: current_boot_device(0x%016llx)\n",
391 ioc->name, __func__,
392 (unsigned long long)sas_address));
393 ioc->current_boot_device.device = device;
394 ioc->current_boot_device.is_raid = is_raid;
395 }
396 }
397}
398
399/**
400 * mpt2sas_scsih_sas_device_find_by_sas_address - sas device search
401 * @ioc: per adapter object
402 * @sas_address: sas address
403 * Context: Calling function should acquire ioc->sas_device_lock
404 *
405 * This searches for sas_device based on sas_address, then return sas_device
406 * object.
407 */
408struct _sas_device *
409mpt2sas_scsih_sas_device_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
410 u64 sas_address)
411{
412 struct _sas_device *sas_device, *r;
413
414 r = NULL;
415 /* check the sas_device_init_list */
416 list_for_each_entry(sas_device, &ioc->sas_device_init_list,
417 list) {
418 if (sas_device->sas_address != sas_address)
419 continue;
420 r = sas_device;
421 goto out;
422 }
423
424 /* then check the sas_device_list */
425 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
426 if (sas_device->sas_address != sas_address)
427 continue;
428 r = sas_device;
429 goto out;
430 }
431 out:
432 return r;
433}
434
435/**
436 * _scsih_sas_device_find_by_handle - sas device search
437 * @ioc: per adapter object
438 * @handle: sas device handle (assigned by firmware)
439 * Context: Calling function should acquire ioc->sas_device_lock
440 *
441 * This searches for sas_device based on sas_address, then return sas_device
442 * object.
443 */
444static struct _sas_device *
445_scsih_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
446{
447 struct _sas_device *sas_device, *r;
448
449 r = NULL;
450 if (ioc->wait_for_port_enable_to_complete) {
451 list_for_each_entry(sas_device, &ioc->sas_device_init_list,
452 list) {
453 if (sas_device->handle != handle)
454 continue;
455 r = sas_device;
456 goto out;
457 }
458 } else {
459 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
460 if (sas_device->handle != handle)
461 continue;
462 r = sas_device;
463 goto out;
464 }
465 }
466
467 out:
468 return r;
469}
470
471/**
472 * _scsih_sas_device_remove - remove sas_device from list.
473 * @ioc: per adapter object
474 * @sas_device: the sas_device object
475 * Context: This function will acquire ioc->sas_device_lock.
476 *
477 * Removing object and freeing associated memory from the ioc->sas_device_list.
478 */
479static void
480_scsih_sas_device_remove(struct MPT2SAS_ADAPTER *ioc,
481 struct _sas_device *sas_device)
482{
483 unsigned long flags;
484
485 spin_lock_irqsave(&ioc->sas_device_lock, flags);
486 list_del(&sas_device->list);
487 memset(sas_device, 0, sizeof(struct _sas_device));
488 kfree(sas_device);
489 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
490}
491
492/**
493 * _scsih_sas_device_add - insert sas_device to the list.
494 * @ioc: per adapter object
495 * @sas_device: the sas_device object
496 * Context: This function will acquire ioc->sas_device_lock.
497 *
498 * Adding new object to the ioc->sas_device_list.
499 */
500static void
501_scsih_sas_device_add(struct MPT2SAS_ADAPTER *ioc,
502 struct _sas_device *sas_device)
503{
504 unsigned long flags;
505 u16 handle, parent_handle;
506 u64 sas_address;
507
508 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
509 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
510 sas_device->handle, (unsigned long long)sas_device->sas_address));
511
512 spin_lock_irqsave(&ioc->sas_device_lock, flags);
513 list_add_tail(&sas_device->list, &ioc->sas_device_list);
514 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
515
516 handle = sas_device->handle;
517 parent_handle = sas_device->parent_handle;
518 sas_address = sas_device->sas_address;
8901cbb4 519 if (!mpt2sas_transport_port_add(ioc, handle, parent_handle))
635374e7 520 _scsih_sas_device_remove(ioc, sas_device);
635374e7
EM		 521}
522
523/**
524 * _scsih_sas_device_init_add - insert sas_device to the list.
525 * @ioc: per adapter object
526 * @sas_device: the sas_device object
527 * Context: This function will acquire ioc->sas_device_lock.
528 *
529 * Adding new object at driver load time to the ioc->sas_device_init_list.
530 */
531static void
532_scsih_sas_device_init_add(struct MPT2SAS_ADAPTER *ioc,
533 struct _sas_device *sas_device)
534{
535 unsigned long flags;
536
537 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
538 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
539 sas_device->handle, (unsigned long long)sas_device->sas_address));
540
541 spin_lock_irqsave(&ioc->sas_device_lock, flags);
542 list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
543 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
544 _scsih_determine_boot_device(ioc, sas_device, 0);
545}
546
547/**
548 * mpt2sas_scsih_expander_find_by_handle - expander device search
549 * @ioc: per adapter object
550 * @handle: expander handle (assigned by firmware)
551 * Context: Calling function should acquire ioc->sas_device_lock
552 *
553 * This searches for expander device based on handle, then returns the
554 * sas_node object.
555 */
556struct _sas_node *
557mpt2sas_scsih_expander_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
558{
559 struct _sas_node *sas_expander, *r;
560
561 r = NULL;
562 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
563 if (sas_expander->handle != handle)
564 continue;
565 r = sas_expander;
566 goto out;
567 }
568 out:
569 return r;
570}
571
572/**
573 * _scsih_raid_device_find_by_id - raid device search
574 * @ioc: per adapter object
575 * @id: sas device target id
576 * @channel: sas device channel
577 * Context: Calling function should acquire ioc->raid_device_lock
578 *
579 * This searches for raid_device based on target id, then return raid_device
580 * object.
581 */
582static struct _raid_device *
583_scsih_raid_device_find_by_id(struct MPT2SAS_ADAPTER *ioc, int id, int channel)
584{
585 struct _raid_device *raid_device, *r;
586
587 r = NULL;
588 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
589 if (raid_device->id == id && raid_device->channel == channel) {
590 r = raid_device;
591 goto out;
592 }
593 }
594
595 out:
596 return r;
597}
598
599/**
600 * _scsih_raid_device_find_by_handle - raid device search
601 * @ioc: per adapter object
602 * @handle: sas device handle (assigned by firmware)
603 * Context: Calling function should acquire ioc->raid_device_lock
604 *
605 * This searches for raid_device based on handle, then return raid_device
606 * object.
607 */
608static struct _raid_device *
609_scsih_raid_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
610{
611 struct _raid_device *raid_device, *r;
612
613 r = NULL;
614 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
615 if (raid_device->handle != handle)
616 continue;
617 r = raid_device;
618 goto out;
619 }
620
621 out:
622 return r;
623}
624
625/**
626 * _scsih_raid_device_find_by_wwid - raid device search
627 * @ioc: per adapter object
628 * @handle: sas device handle (assigned by firmware)
629 * Context: Calling function should acquire ioc->raid_device_lock
630 *
631 * This searches for raid_device based on wwid, then return raid_device
632 * object.
633 */
634static struct _raid_device *
635_scsih_raid_device_find_by_wwid(struct MPT2SAS_ADAPTER *ioc, u64 wwid)
636{
637 struct _raid_device *raid_device, *r;
638
639 r = NULL;
640 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
641 if (raid_device->wwid != wwid)
642 continue;
643 r = raid_device;
644 goto out;
645 }
646
647 out:
648 return r;
649}
650
651/**
652 * _scsih_raid_device_add - add raid_device object
653 * @ioc: per adapter object
654 * @raid_device: raid_device object
655 *
656 * This is added to the raid_device_list link list.
657 */
658static void
659_scsih_raid_device_add(struct MPT2SAS_ADAPTER *ioc,
660 struct _raid_device *raid_device)
661{
662 unsigned long flags;
663
664 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
665 "(0x%04x), wwid(0x%016llx)\n", ioc->name, __func__,
666 raid_device->handle, (unsigned long long)raid_device->wwid));
667
668 spin_lock_irqsave(&ioc->raid_device_lock, flags);
669 list_add_tail(&raid_device->list, &ioc->raid_device_list);
670 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
671}
672
673/**
674 * _scsih_raid_device_remove - delete raid_device object
675 * @ioc: per adapter object
676 * @raid_device: raid_device object
677 *
678 * This is removed from the raid_device_list link list.
679 */
680static void
681_scsih_raid_device_remove(struct MPT2SAS_ADAPTER *ioc,
682 struct _raid_device *raid_device)
683{
684 unsigned long flags;
685
686 spin_lock_irqsave(&ioc->raid_device_lock, flags);
687 list_del(&raid_device->list);
688 memset(raid_device, 0, sizeof(struct _raid_device));
689 kfree(raid_device);
690 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
691}
692
693/**
694 * mpt2sas_scsih_expander_find_by_sas_address - expander device search
695 * @ioc: per adapter object
696 * @sas_address: sas address
697 * Context: Calling function should acquire ioc->sas_node_lock.
698 *
699 * This searches for expander device based on sas_address, then returns the
700 * sas_node object.
701 */
702struct _sas_node *
703mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
704 u64 sas_address)
705{
706 struct _sas_node *sas_expander, *r;
707
708 r = NULL;
709 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
710 if (sas_expander->sas_address != sas_address)
711 continue;
712 r = sas_expander;
713 goto out;
714 }
715 out:
716 return r;
717}
718
719/**
720 * _scsih_expander_node_add - insert expander device to the list.
721 * @ioc: per adapter object
722 * @sas_expander: the sas_device object
723 * Context: This function will acquire ioc->sas_node_lock.
724 *
725 * Adding new object to the ioc->sas_expander_list.
726 *
727 * Return nothing.
728 */
729static void
730_scsih_expander_node_add(struct MPT2SAS_ADAPTER *ioc,
731 struct _sas_node *sas_expander)
732{
733 unsigned long flags;
734
735 spin_lock_irqsave(&ioc->sas_node_lock, flags);
736 list_add_tail(&sas_expander->list, &ioc->sas_expander_list);
737 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
738}
739
740/**
741 * _scsih_is_end_device - determines if device is an end device
742 * @device_info: bitfield providing information about the device.
743 * Context: none
744 *
745 * Returns 1 if end device.
746 */
747static int
748_scsih_is_end_device(u32 device_info)
749{
750 if (device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE &&
751 ((device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) |
752 (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) |
753 (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))
754 return 1;
755 else
756 return 0;
757}
758
759/**
760 * _scsih_scsi_lookup_get - returns scmd entry
761 * @ioc: per adapter object
762 * @smid: system request message index
763 * Context: This function will acquire ioc->scsi_lookup_lock.
764 *
765 * Returns the smid stored scmd pointer.
766 */
767static struct scsi_cmnd *
768_scsih_scsi_lookup_get(struct MPT2SAS_ADAPTER *ioc, u16 smid)
769{
770 unsigned long flags;
771 struct scsi_cmnd *scmd;
772
773 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
774 scmd = ioc->scsi_lookup[smid - 1].scmd;
775 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
776 return scmd;
777}
778
779/**
780 * mptscsih_getclear_scsi_lookup - returns scmd entry
781 * @ioc: per adapter object
782 * @smid: system request message index
783 * Context: This function will acquire ioc->scsi_lookup_lock.
784 *
785 * Returns the smid stored scmd pointer, as well as clearing the scmd pointer.
786 */
787static struct scsi_cmnd *
788_scsih_scsi_lookup_getclear(struct MPT2SAS_ADAPTER *ioc, u16 smid)
789{
790 unsigned long flags;
791 struct scsi_cmnd *scmd;
792
793 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
794 scmd = ioc->scsi_lookup[smid - 1].scmd;
795 ioc->scsi_lookup[smid - 1].scmd = NULL;
796 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
797 return scmd;
798}
799
800/**
801 * _scsih_scsi_lookup_set - updates scmd entry in lookup
802 * @ioc: per adapter object
803 * @smid: system request message index
804 * @scmd: pointer to scsi command object
805 * Context: This function will acquire ioc->scsi_lookup_lock.
806 *
807 * This will save scmd pointer in the scsi_lookup array.
808 *
809 * Return nothing.
810 */
811static void
812_scsih_scsi_lookup_set(struct MPT2SAS_ADAPTER *ioc, u16 smid,
813 struct scsi_cmnd *scmd)
814{
815 unsigned long flags;
816
817 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
818 ioc->scsi_lookup[smid - 1].scmd = scmd;
819 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
820}
821
822/**
823 * _scsih_scsi_lookup_find_by_scmd - scmd lookup
824 * @ioc: per adapter object
825 * @smid: system request message index
826 * @scmd: pointer to scsi command object
827 * Context: This function will acquire ioc->scsi_lookup_lock.
828 *
829 * This will search for a scmd pointer in the scsi_lookup array,
830 * returning the revelent smid. A returned value of zero means invalid.
831 */
832static u16
833_scsih_scsi_lookup_find_by_scmd(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd
834 *scmd)
835{
836 u16 smid;
837 unsigned long flags;
838 int i;
839
840 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
841 smid = 0;
842 for (i = 0; i < ioc->request_depth; i++) {
843 if (ioc->scsi_lookup[i].scmd == scmd) {
844 smid = i + 1;
845 goto out;
846 }
847 }
848 out:
849 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
850 return smid;
851}
852
853/**
854 * _scsih_scsi_lookup_find_by_target - search for matching channel:id
855 * @ioc: per adapter object
856 * @id: target id
857 * @channel: channel
858 * Context: This function will acquire ioc->scsi_lookup_lock.
859 *
860 * This will search for a matching channel:id in the scsi_lookup array,
861 * returning 1 if found.
862 */
863static u8
864_scsih_scsi_lookup_find_by_target(struct MPT2SAS_ADAPTER *ioc, int id,
865 int channel)
866{
867 u8 found;
868 unsigned long flags;
869 int i;
870
871 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
872 found = 0;
873 for (i = 0 ; i < ioc->request_depth; i++) {
874 if (ioc->scsi_lookup[i].scmd &&
875 (ioc->scsi_lookup[i].scmd->device->id == id &&
876 ioc->scsi_lookup[i].scmd->device->channel == channel)) {
877 found = 1;
878 goto out;
879 }
880 }
881 out:
882 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
883 return found;
884}
885
993e0da7
EM		 886/**
887 * _scsih_scsi_lookup_find_by_lun - search for matching channel:id:lun
888 * @ioc: per adapter object
889 * @id: target id
890 * @lun: lun number
891 * @channel: channel
892 * Context: This function will acquire ioc->scsi_lookup_lock.
893 *
894 * This will search for a matching channel:id:lun in the scsi_lookup array,
895 * returning 1 if found.
896 */
897static u8
898_scsih_scsi_lookup_find_by_lun(struct MPT2SAS_ADAPTER *ioc, int id,
899 unsigned int lun, int channel)
900{
901 u8 found;
902 unsigned long flags;
903 int i;
904
905 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
906 found = 0;
907 for (i = 0 ; i < ioc->request_depth; i++) {
908 if (ioc->scsi_lookup[i].scmd &&
909 (ioc->scsi_lookup[i].scmd->device->id == id &&
910 ioc->scsi_lookup[i].scmd->device->channel == channel &&
911 ioc->scsi_lookup[i].scmd->device->lun == lun)) {
912 found = 1;
913 goto out;
914 }
915 }
916 out:
917 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
918 return found;
919}
920
635374e7
EM		 921/**
922 * _scsih_get_chain_buffer_dma - obtain block of chains (dma address)
923 * @ioc: per adapter object
924 * @smid: system request message index
925 *
926 * Returns phys pointer to chain buffer.
927 */
928static dma_addr_t
929_scsih_get_chain_buffer_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid)
930{
931 return ioc->chain_dma + ((smid - 1) * (ioc->request_sz *
932 ioc->chains_needed_per_io));
933}
934
935/**
936 * _scsih_get_chain_buffer - obtain block of chains assigned to a mf request
937 * @ioc: per adapter object
938 * @smid: system request message index
939 *
940 * Returns virt pointer to chain buffer.
941 */
942static void *
943_scsih_get_chain_buffer(struct MPT2SAS_ADAPTER *ioc, u16 smid)
944{
945 return (void *)(ioc->chain + ((smid - 1) * (ioc->request_sz *
946 ioc->chains_needed_per_io)));
947}
948
949/**
950 * _scsih_build_scatter_gather - main sg creation routine
951 * @ioc: per adapter object
952 * @scmd: scsi command
953 * @smid: system request message index
954 * Context: none.
955 *
956 * The main routine that builds scatter gather table from a given
957 * scsi request sent via the .queuecommand main handler.
958 *
959 * Returns 0 success, anything else error
960 */
961static int
962_scsih_build_scatter_gather(struct MPT2SAS_ADAPTER *ioc,
963 struct scsi_cmnd *scmd, u16 smid)
964{
965 Mpi2SCSIIORequest_t *mpi_request;
966 dma_addr_t chain_dma;
967 struct scatterlist *sg_scmd;
968 void *sg_local, *chain;
969 u32 chain_offset;
970 u32 chain_length;
971 u32 chain_flags;
972 u32 sges_left;
973 u32 sges_in_segment;
974 u32 sgl_flags;
975 u32 sgl_flags_last_element;
976 u32 sgl_flags_end_buffer;
977
978 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
979
980 /* init scatter gather flags */
981 sgl_flags = MPI2_SGE_FLAGS_SIMPLE_ELEMENT;
982 if (scmd->sc_data_direction == DMA_TO_DEVICE)
983 sgl_flags |= MPI2_SGE_FLAGS_HOST_TO_IOC;
984 sgl_flags_last_element = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT)
985 << MPI2_SGE_FLAGS_SHIFT;
986 sgl_flags_end_buffer = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT |
987 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST)
988 << MPI2_SGE_FLAGS_SHIFT;
989 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
990
991 sg_scmd = scsi_sglist(scmd);
992 sges_left = scsi_dma_map(scmd);
993 if (!sges_left) {
994 sdev_printk(KERN_ERR, scmd->device, "pci_map_sg"
995 " failed: request for %d bytes!\n", scsi_bufflen(scmd));
996 return -ENOMEM;
997 }
998
999 sg_local = &mpi_request->SGL;
1000 sges_in_segment = ioc->max_sges_in_main_message;
1001 if (sges_left <= sges_in_segment)
1002 goto fill_in_last_segment;
1003
1004 mpi_request->ChainOffset = (offsetof(Mpi2SCSIIORequest_t, SGL) +
1005 (sges_in_segment * ioc->sge_size))/4;
1006
1007 /* fill in main message segment when there is a chain following */
1008 while (sges_in_segment) {
1009 if (sges_in_segment == 1)
1010 ioc->base_add_sg_single(sg_local,
1011 sgl_flags_last_element | sg_dma_len(sg_scmd),
1012 sg_dma_address(sg_scmd));
1013 else
1014 ioc->base_add_sg_single(sg_local, sgl_flags |
1015 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1016 sg_scmd = sg_next(sg_scmd);
1017 sg_local += ioc->sge_size;
1018 sges_left--;
1019 sges_in_segment--;
1020 }
1021
1022 /* initializing the chain flags and pointers */
1023 chain_flags = MPI2_SGE_FLAGS_CHAIN_ELEMENT << MPI2_SGE_FLAGS_SHIFT;
1024 chain = _scsih_get_chain_buffer(ioc, smid);
1025 chain_dma = _scsih_get_chain_buffer_dma(ioc, smid);
1026 do {
1027 sges_in_segment = (sges_left <=
1028 ioc->max_sges_in_chain_message) ? sges_left :
1029 ioc->max_sges_in_chain_message;
1030 chain_offset = (sges_left == sges_in_segment) ?
1031 0 : (sges_in_segment * ioc->sge_size)/4;
1032 chain_length = sges_in_segment * ioc->sge_size;
1033 if (chain_offset) {
1034 chain_offset = chain_offset <<
1035 MPI2_SGE_CHAIN_OFFSET_SHIFT;
1036 chain_length += ioc->sge_size;
1037 }
1038 ioc->base_add_sg_single(sg_local, chain_flags | chain_offset |
1039 chain_length, chain_dma);
1040 sg_local = chain;
1041 if (!chain_offset)
1042 goto fill_in_last_segment;
1043
1044 /* fill in chain segments */
1045 while (sges_in_segment) {
1046 if (sges_in_segment == 1)
1047 ioc->base_add_sg_single(sg_local,
1048 sgl_flags_last_element |
1049 sg_dma_len(sg_scmd),
1050 sg_dma_address(sg_scmd));
1051 else
1052 ioc->base_add_sg_single(sg_local, sgl_flags |
1053 sg_dma_len(sg_scmd),
1054 sg_dma_address(sg_scmd));
1055 sg_scmd = sg_next(sg_scmd);
1056 sg_local += ioc->sge_size;
1057 sges_left--;
1058 sges_in_segment--;
1059 }
1060
1061 chain_dma += ioc->request_sz;
1062 chain += ioc->request_sz;
1063 } while (1);
1064
1065
1066 fill_in_last_segment:
1067
1068 /* fill the last segment */
1069 while (sges_left) {
1070 if (sges_left == 1)
1071 ioc->base_add_sg_single(sg_local, sgl_flags_end_buffer |
1072 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1073 else
1074 ioc->base_add_sg_single(sg_local, sgl_flags |
1075 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1076 sg_scmd = sg_next(sg_scmd);
1077 sg_local += ioc->sge_size;
1078 sges_left--;
1079 }
1080
1081 return 0;
1082}
1083
1084/**
d5d135b3 1085 * _scsih_change_queue_depth - setting device queue depth
635374e7
EM		 1086 * @sdev: scsi device struct
1087 * @qdepth: requested queue depth
1088 *
1089 * Returns queue depth.
1090 */
1091static int
d5d135b3 1092_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
635374e7
EM		 1093{
1094 struct Scsi_Host *shost = sdev->host;
1095 int max_depth;
1096 int tag_type;
1097
1098 max_depth = shost->can_queue;
1099 if (!sdev->tagged_supported)
1100 max_depth = 1;
1101 if (qdepth > max_depth)
1102 qdepth = max_depth;
1103 tag_type = (qdepth == 1) ? 0 : MSG_SIMPLE_TAG;
1104 scsi_adjust_queue_depth(sdev, tag_type, qdepth);
1105
1106 if (sdev->inquiry_len > 7)
1107 sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), "
1108 "simple(%d), ordered(%d), scsi_level(%d), cmd_que(%d)\n",
1109 sdev->queue_depth, sdev->tagged_supported, sdev->simple_tags,
1110 sdev->ordered_tags, sdev->scsi_level,
1111 (sdev->inquiry[7] & 2) >> 1);
1112
1113 return sdev->queue_depth;
1114}
1115
1116/**
d5d135b3 1117 * _scsih_change_queue_depth - changing device queue tag type
635374e7
EM		 1118 * @sdev: scsi device struct
1119 * @tag_type: requested tag type
1120 *
1121 * Returns queue tag type.
1122 */
1123static int
d5d135b3 1124_scsih_change_queue_type(struct scsi_device *sdev, int tag_type)
635374e7
EM		 1125{
1126 if (sdev->tagged_supported) {
1127 scsi_set_tag_type(sdev, tag_type);
1128 if (tag_type)
1129 scsi_activate_tcq(sdev, sdev->queue_depth);
1130 else
1131 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1132 } else
1133 tag_type = 0;
1134
1135 return tag_type;
1136}
1137
1138/**
d5d135b3 1139 * _scsih_target_alloc - target add routine
635374e7
EM		 1140 * @starget: scsi target struct
1141 *
1142 * Returns 0 if ok. Any other return is assumed to be an error and
1143 * the device is ignored.
1144 */
1145static int
d5d135b3 1146_scsih_target_alloc(struct scsi_target *starget)
635374e7
EM		 1147{
1148 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1149 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1150 struct MPT2SAS_TARGET *sas_target_priv_data;
1151 struct _sas_device *sas_device;
1152 struct _raid_device *raid_device;
1153 unsigned long flags;
1154 struct sas_rphy *rphy;
1155
1156 sas_target_priv_data = kzalloc(sizeof(struct scsi_target), GFP_KERNEL);
1157 if (!sas_target_priv_data)
1158 return -ENOMEM;
1159
1160 starget->hostdata = sas_target_priv_data;
1161 sas_target_priv_data->starget = starget;
1162 sas_target_priv_data->handle = MPT2SAS_INVALID_DEVICE_HANDLE;
1163
1164 /* RAID volumes */
1165 if (starget->channel == RAID_CHANNEL) {
1166 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1167 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1168 starget->channel);
1169 if (raid_device) {
1170 sas_target_priv_data->handle = raid_device->handle;
1171 sas_target_priv_data->sas_address = raid_device->wwid;
1172 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME;
1173 raid_device->starget = starget;
1174 }
1175 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1176 return 0;
1177 }
1178
1179 /* sas/sata devices */
1180 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1181 rphy = dev_to_rphy(starget->dev.parent);
1182 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1183 rphy->identify.sas_address);
1184
1185 if (sas_device) {
1186 sas_target_priv_data->handle = sas_device->handle;
1187 sas_target_priv_data->sas_address = sas_device->sas_address;
1188 sas_device->starget = starget;
1189 sas_device->id = starget->id;
1190 sas_device->channel = starget->channel;
1191 if (sas_device->hidden_raid_component)
1192 sas_target_priv_data->flags |=
1193 MPT_TARGET_FLAGS_RAID_COMPONENT;
1194 }
1195 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1196
1197 return 0;
1198}
1199
1200/**
d5d135b3 1201 * _scsih_target_destroy - target destroy routine
635374e7
EM		 1202 * @starget: scsi target struct
1203 *
1204 * Returns nothing.
1205 */
1206static void
d5d135b3 1207_scsih_target_destroy(struct scsi_target *starget)
635374e7
EM		 1208{
1209 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1210 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1211 struct MPT2SAS_TARGET *sas_target_priv_data;
1212 struct _sas_device *sas_device;
1213 struct _raid_device *raid_device;
1214 unsigned long flags;
1215 struct sas_rphy *rphy;
1216
1217 sas_target_priv_data = starget->hostdata;
1218 if (!sas_target_priv_data)
1219 return;
1220
1221 if (starget->channel == RAID_CHANNEL) {
1222 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1223 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1224 starget->channel);
1225 if (raid_device) {
1226 raid_device->starget = NULL;
1227 raid_device->sdev = NULL;
1228 }
1229 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1230 goto out;
1231 }
1232
1233 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1234 rphy = dev_to_rphy(starget->dev.parent);
1235 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1236 rphy->identify.sas_address);
8901cbb4
EM		 1237 if (sas_device && (sas_device->starget == starget) &&
1238 (sas_device->id == starget->id) &&
1239 (sas_device->channel == starget->channel))
635374e7
EM		 1240 sas_device->starget = NULL;
1241
1242 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1243
1244 out:
1245 kfree(sas_target_priv_data);
1246 starget->hostdata = NULL;
1247}
1248
1249/**
d5d135b3 1250 * _scsih_slave_alloc - device add routine
635374e7
EM		 1251 * @sdev: scsi device struct
1252 *
1253 * Returns 0 if ok. Any other return is assumed to be an error and
1254 * the device is ignored.
1255 */
1256static int
d5d135b3 1257_scsih_slave_alloc(struct scsi_device *sdev)
635374e7
EM		 1258{
1259 struct Scsi_Host *shost;
1260 struct MPT2SAS_ADAPTER *ioc;
1261 struct MPT2SAS_TARGET *sas_target_priv_data;
1262 struct MPT2SAS_DEVICE *sas_device_priv_data;
1263 struct scsi_target *starget;
1264 struct _raid_device *raid_device;
1265 struct _sas_device *sas_device;
1266 unsigned long flags;
1267
1268 sas_device_priv_data = kzalloc(sizeof(struct scsi_device), GFP_KERNEL);
1269 if (!sas_device_priv_data)
1270 return -ENOMEM;
1271
1272 sas_device_priv_data->lun = sdev->lun;
1273 sas_device_priv_data->flags = MPT_DEVICE_FLAGS_INIT;
1274
1275 starget = scsi_target(sdev);
1276 sas_target_priv_data = starget->hostdata;
1277 sas_target_priv_data->num_luns++;
1278 sas_device_priv_data->sas_target = sas_target_priv_data;
1279 sdev->hostdata = sas_device_priv_data;
1280 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT))
1281 sdev->no_uld_attach = 1;
1282
1283 shost = dev_to_shost(&starget->dev);
1284 ioc = shost_priv(shost);
1285 if (starget->channel == RAID_CHANNEL) {
1286 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1287 raid_device = _scsih_raid_device_find_by_id(ioc,
1288 starget->id, starget->channel);
1289 if (raid_device)
1290 raid_device->sdev = sdev; /* raid is single lun */
1291 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1292 } else {
1293 /* set TLR bit for SSP devices */
1294 if (!(ioc->facts.IOCCapabilities &
1295 MPI2_IOCFACTS_CAPABILITY_TLR))
1296 goto out;
1297 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1298 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1299 sas_device_priv_data->sas_target->sas_address);
1300 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1301 if (sas_device && sas_device->device_info &
1302 MPI2_SAS_DEVICE_INFO_SSP_TARGET)
1303 sas_device_priv_data->flags |= MPT_DEVICE_TLR_ON;
1304 }
1305
1306 out:
1307 return 0;
1308}
1309
1310/**
d5d135b3 1311 * _scsih_slave_destroy - device destroy routine
635374e7
EM		 1312 * @sdev: scsi device struct
1313 *
1314 * Returns nothing.
1315 */
1316static void
d5d135b3 1317_scsih_slave_destroy(struct scsi_device *sdev)
635374e7
EM		 1318{
1319 struct MPT2SAS_TARGET *sas_target_priv_data;
1320 struct scsi_target *starget;
1321
1322 if (!sdev->hostdata)
1323 return;
1324
1325 starget = scsi_target(sdev);
1326 sas_target_priv_data = starget->hostdata;
1327 sas_target_priv_data->num_luns--;
1328 kfree(sdev->hostdata);
1329 sdev->hostdata = NULL;
1330}
1331
1332/**
d5d135b3 1333 * _scsih_display_sata_capabilities - sata capabilities
635374e7
EM		 1334 * @ioc: per adapter object
1335 * @sas_device: the sas_device object
1336 * @sdev: scsi device struct
1337 */
1338static void
d5d135b3 1339_scsih_display_sata_capabilities(struct MPT2SAS_ADAPTER *ioc,
635374e7
EM		 1340 struct _sas_device *sas_device, struct scsi_device *sdev)
1341{
1342 Mpi2ConfigReply_t mpi_reply;
1343 Mpi2SasDevicePage0_t sas_device_pg0;
1344 u32 ioc_status;
1345 u16 flags;
1346 u32 device_info;
1347
1348 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
1349 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, sas_device->handle))) {
1350 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1351 ioc->name, __FILE__, __LINE__, __func__);
1352 return;
1353 }
1354
1355 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1356 MPI2_IOCSTATUS_MASK;
1357 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
1358 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1359 ioc->name, __FILE__, __LINE__, __func__);
1360 return;
1361 }
1362
1363 flags = le16_to_cpu(sas_device_pg0.Flags);
1364 device_info = le16_to_cpu(sas_device_pg0.DeviceInfo);
1365
1366 sdev_printk(KERN_INFO, sdev,
1367 "atapi(%s), ncq(%s), asyn_notify(%s), smart(%s), fua(%s), "
1368 "sw_preserve(%s)\n",
1369 (device_info & MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? "y" : "n",
1370 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED) ? "y" : "n",
1371 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY) ? "y" :
1372 "n",
1373 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SMART_SUPPORTED) ? "y" : "n",
1374 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED) ? "y" : "n",
1375 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SW_PRESERVE) ? "y" : "n");
1376}
1377
1378/**
1379 * _scsih_get_volume_capabilities - volume capabilities
1380 * @ioc: per adapter object
1381 * @sas_device: the raid_device object
1382 */
1383static void
1384_scsih_get_volume_capabilities(struct MPT2SAS_ADAPTER *ioc,
1385 struct _raid_device *raid_device)
1386{
1387 Mpi2RaidVolPage0_t *vol_pg0;
1388 Mpi2RaidPhysDiskPage0_t pd_pg0;
1389 Mpi2SasDevicePage0_t sas_device_pg0;
1390 Mpi2ConfigReply_t mpi_reply;
1391 u16 sz;
1392 u8 num_pds;
1393
1394 if ((mpt2sas_config_get_number_pds(ioc, raid_device->handle,
1395 &num_pds)) || !num_pds) {
1396 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1397 ioc->name, __FILE__, __LINE__, __func__);
1398 return;
1399 }
1400
1401 raid_device->num_pds = num_pds;
1402 sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
1403 sizeof(Mpi2RaidVol0PhysDisk_t));
1404 vol_pg0 = kzalloc(sz, GFP_KERNEL);
1405 if (!vol_pg0) {
1406 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1407 ioc->name, __FILE__, __LINE__, __func__);
1408 return;
1409 }
1410
1411 if ((mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
1412 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
1413 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1414 ioc->name, __FILE__, __LINE__, __func__);
1415 kfree(vol_pg0);
1416 return;
1417 }
1418
1419 raid_device->volume_type = vol_pg0->VolumeType;
1420
1421 /* figure out what the underlying devices are by
1422 * obtaining the device_info bits for the 1st device
1423 */
1424 if (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
1425 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
1426 vol_pg0->PhysDisk[0].PhysDiskNum))) {
1427 if (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
1428 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
1429 le16_to_cpu(pd_pg0.DevHandle)))) {
1430 raid_device->device_info =
1431 le32_to_cpu(sas_device_pg0.DeviceInfo);
1432 }
1433 }
1434
1435 kfree(vol_pg0);
1436}
1437
1438/**
d5d135b3 1439 * _scsih_slave_configure - device configure routine.
635374e7
EM		 1440 * @sdev: scsi device struct
1441 *
1442 * Returns 0 if ok. Any other return is assumed to be an error and
1443 * the device is ignored.
1444 */
1445static int
d5d135b3 1446_scsih_slave_configure(struct scsi_device *sdev)
635374e7
EM		 1447{
1448 struct Scsi_Host *shost = sdev->host;
1449 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1450 struct MPT2SAS_DEVICE *sas_device_priv_data;
1451 struct MPT2SAS_TARGET *sas_target_priv_data;
1452 struct _sas_device *sas_device;
1453 struct _raid_device *raid_device;
1454 unsigned long flags;
1455 int qdepth;
1456 u8 ssp_target = 0;
1457 char *ds = "";
1458 char *r_level = "";
1459
1460 qdepth = 1;
1461 sas_device_priv_data = sdev->hostdata;
1462 sas_device_priv_data->configured_lun = 1;
1463 sas_device_priv_data->flags &= ~MPT_DEVICE_FLAGS_INIT;
1464 sas_target_priv_data = sas_device_priv_data->sas_target;
1465
1466 /* raid volume handling */
1467 if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME) {
1468
1469 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1470 raid_device = _scsih_raid_device_find_by_handle(ioc,
1471 sas_target_priv_data->handle);
1472 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1473 if (!raid_device) {
1474 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1475 ioc->name, __FILE__, __LINE__, __func__);
1476 return 0;
1477 }
1478
1479 _scsih_get_volume_capabilities(ioc, raid_device);
1480
1481 /* RAID Queue Depth Support
1482 * IS volume = underlying qdepth of drive type, either
1483 * MPT2SAS_SAS_QUEUE_DEPTH or MPT2SAS_SATA_QUEUE_DEPTH
1484 * IM/IME/R10 = 128 (MPT2SAS_RAID_QUEUE_DEPTH)
1485 */
1486 if (raid_device->device_info &
1487 MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
1488 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
1489 ds = "SSP";
1490 } else {
1491 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
1492 if (raid_device->device_info &
1493 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1494 ds = "SATA";
1495 else
1496 ds = "STP";
1497 }
1498
1499 switch (raid_device->volume_type) {
1500 case MPI2_RAID_VOL_TYPE_RAID0:
1501 r_level = "RAID0";
1502 break;
1503 case MPI2_RAID_VOL_TYPE_RAID1E:
1504 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1505 r_level = "RAID1E";
1506 break;
1507 case MPI2_RAID_VOL_TYPE_RAID1:
1508 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1509 r_level = "RAID1";
1510 break;
1511 case MPI2_RAID_VOL_TYPE_RAID10:
1512 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1513 r_level = "RAID10";
1514 break;
1515 case MPI2_RAID_VOL_TYPE_UNKNOWN:
1516 default:
1517 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1518 r_level = "RAIDX";
1519 break;
1520 }
1521
1522 sdev_printk(KERN_INFO, sdev, "%s: "
1523 "handle(0x%04x), wwid(0x%016llx), pd_count(%d), type(%s)\n",
1524 r_level, raid_device->handle,
1525 (unsigned long long)raid_device->wwid,
1526 raid_device->num_pds, ds);
d5d135b3 1527 _scsih_change_queue_depth(sdev, qdepth);
635374e7
EM		 1528 return 0;
1529 }
1530
1531 /* non-raid handling */
1532 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1533 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1534 sas_device_priv_data->sas_target->sas_address);
1535 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1536 if (sas_device) {
1537 if (sas_target_priv_data->flags &
1538 MPT_TARGET_FLAGS_RAID_COMPONENT) {
1539 mpt2sas_config_get_volume_handle(ioc,
1540 sas_device->handle, &sas_device->volume_handle);
1541 mpt2sas_config_get_volume_wwid(ioc,
1542 sas_device->volume_handle,
1543 &sas_device->volume_wwid);
1544 }
1545 if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
1546 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
1547 ssp_target = 1;
1548 ds = "SSP";
1549 } else {
1550 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
1551 if (sas_device->device_info &
1552 MPI2_SAS_DEVICE_INFO_STP_TARGET)
1553 ds = "STP";
1554 else if (sas_device->device_info &
1555 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1556 ds = "SATA";
1557 }
1558
1559 sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), "
1560 "sas_addr(0x%016llx), device_name(0x%016llx)\n",
1561 ds, sas_device->handle,
1562 (unsigned long long)sas_device->sas_address,
1563 (unsigned long long)sas_device->device_name);
1564 sdev_printk(KERN_INFO, sdev, "%s: "
1565 "enclosure_logical_id(0x%016llx), slot(%d)\n", ds,
1566 (unsigned long long) sas_device->enclosure_logical_id,
1567 sas_device->slot);
1568
1569 if (!ssp_target)
d5d135b3 1570 _scsih_display_sata_capabilities(ioc, sas_device, sdev);
635374e7
EM		 1571 }
1572
d5d135b3 1573 _scsih_change_queue_depth(sdev, qdepth);
635374e7
EM		 1574
1575 if (ssp_target)
1576 sas_read_port_mode_page(sdev);
1577 return 0;
1578}
1579
1580/**
d5d135b3 1581 * _scsih_bios_param - fetch head, sector, cylinder info for a disk
635374e7
EM		 1582 * @sdev: scsi device struct
1583 * @bdev: pointer to block device context
1584 * @capacity: device size (in 512 byte sectors)
1585 * @params: three element array to place output:
1586 * params[0] number of heads (max 255)
1587 * params[1] number of sectors (max 63)
1588 * params[2] number of cylinders
1589 *
1590 * Return nothing.
1591 */
1592static int
d5d135b3 1593_scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev,
635374e7
EM		 1594 sector_t capacity, int params[])
1595{
1596 int heads;
1597 int sectors;
1598 sector_t cylinders;
1599 ulong dummy;
1600
1601 heads = 64;
1602 sectors = 32;
1603
1604 dummy = heads * sectors;
1605 cylinders = capacity;
1606 sector_div(cylinders, dummy);
1607
1608 /*
1609 * Handle extended translation size for logical drives
1610 * > 1Gb
1611 */
1612 if ((ulong)capacity >= 0x200000) {
1613 heads = 255;
1614 sectors = 63;
1615 dummy = heads * sectors;
1616 cylinders = capacity;
1617 sector_div(cylinders, dummy);
1618 }
1619
1620 /* return result */
1621 params[0] = heads;
1622 params[1] = sectors;
1623 params[2] = cylinders;
1624
1625 return 0;
1626}
1627
1628/**
1629 * _scsih_response_code - translation of device response code
1630 * @ioc: per adapter object
1631 * @response_code: response code returned by the device
1632 *
1633 * Return nothing.
1634 */
1635static void
1636_scsih_response_code(struct MPT2SAS_ADAPTER *ioc, u8 response_code)
1637{
1638 char *desc;
1639
1640 switch (response_code) {
1641 case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE:
1642 desc = "task management request completed";
1643 break;
1644 case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME:
1645 desc = "invalid frame";
1646 break;
1647 case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
1648 desc = "task management request not supported";
1649 break;
1650 case MPI2_SCSITASKMGMT_RSP_TM_FAILED:
1651 desc = "task management request failed";
1652 break;
1653 case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED:
1654 desc = "task management request succeeded";
1655 break;
1656 case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN:
1657 desc = "invalid lun";
1658 break;
1659 case 0xA:
1660 desc = "overlapped tag attempted";
1661 break;
1662 case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
1663 desc = "task queued, however not sent to target";
1664 break;
1665 default:
1666 desc = "unknown";
1667 break;
1668 }
1669 printk(MPT2SAS_WARN_FMT "response_code(0x%01x): %s\n",
1670 ioc->name, response_code, desc);
1671}
1672
1673/**
d5d135b3 1674 * _scsih_tm_done - tm completion routine
635374e7
EM		 1675 * @ioc: per adapter object
1676 * @smid: system request message index
1677 * @VF_ID: virtual function id
1678 * @reply: reply message frame(lower 32bit addr)
1679 * Context: none.
1680 *
1681 * The callback handler when using scsih_issue_tm.
1682 *
1683 * Return nothing.
1684 */
1685static void
d5d135b3 1686_scsih_tm_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply)
635374e7
EM		 1687{
1688 MPI2DefaultReply_t *mpi_reply;
1689
1690 if (ioc->tm_cmds.status == MPT2_CMD_NOT_USED)
1691 return;
1692 if (ioc->tm_cmds.smid != smid)
1693 return;
1694 ioc->tm_cmds.status |= MPT2_CMD_COMPLETE;
1695 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
1696 if (mpi_reply) {
1697 memcpy(ioc->tm_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
1698 ioc->tm_cmds.status |= MPT2_CMD_REPLY_VALID;
1699 }
1700 ioc->tm_cmds.status &= ~MPT2_CMD_PENDING;
1701 complete(&ioc->tm_cmds.done);
1702}
1703
1704/**
1705 * mpt2sas_scsih_set_tm_flag - set per target tm_busy
1706 * @ioc: per adapter object
1707 * @handle: device handle
1708 *
1709 * During taskmangement request, we need to freeze the device queue.
1710 */
1711void
1712mpt2sas_scsih_set_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
1713{
1714 struct MPT2SAS_DEVICE *sas_device_priv_data;
1715 struct scsi_device *sdev;
1716 u8 skip = 0;
1717
1718 shost_for_each_device(sdev, ioc->shost) {
1719 if (skip)
1720 continue;
1721 sas_device_priv_data = sdev->hostdata;
1722 if (!sas_device_priv_data)
1723 continue;
1724 if (sas_device_priv_data->sas_target->handle == handle) {
1725 sas_device_priv_data->sas_target->tm_busy = 1;
1726 skip = 1;
1727 ioc->ignore_loginfos = 1;
1728 }
1729 }
1730}
1731
1732/**
1733 * mpt2sas_scsih_clear_tm_flag - clear per target tm_busy
1734 * @ioc: per adapter object
1735 * @handle: device handle
1736 *
1737 * During taskmangement request, we need to freeze the device queue.
1738 */
1739void
1740mpt2sas_scsih_clear_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
1741{
1742 struct MPT2SAS_DEVICE *sas_device_priv_data;
1743 struct scsi_device *sdev;
1744 u8 skip = 0;
1745
1746 shost_for_each_device(sdev, ioc->shost) {
1747 if (skip)
1748 continue;
1749 sas_device_priv_data = sdev->hostdata;
1750 if (!sas_device_priv_data)
1751 continue;
1752 if (sas_device_priv_data->sas_target->handle == handle) {
1753 sas_device_priv_data->sas_target->tm_busy = 0;
1754 skip = 1;
1755 ioc->ignore_loginfos = 0;
1756 }
1757 }
1758}
1759
1760/**
1761 * mpt2sas_scsih_issue_tm - main routine for sending tm requests
1762 * @ioc: per adapter struct
1763 * @device_handle: device handle
1764 * @lun: lun number
1765 * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
1766 * @smid_task: smid assigned to the task
1767 * @timeout: timeout in seconds
1768 * Context: The calling function needs to acquire the tm_cmds.mutex
1769 *
1770 * A generic API for sending task management requests to firmware.
1771 *
1772 * The ioc->tm_cmds.status flag should be MPT2_CMD_NOT_USED before calling
1773 * this API.
1774 *
1775 * The callback index is set inside `ioc->tm_cb_idx`.
1776 *
1777 * Return nothing.
1778 */
1779void
1780mpt2sas_scsih_issue_tm(struct MPT2SAS_ADAPTER *ioc, u16 handle, uint lun,
1781 u8 type, u16 smid_task, ulong timeout)
1782{
1783 Mpi2SCSITaskManagementRequest_t *mpi_request;
1784 Mpi2SCSITaskManagementReply_t *mpi_reply;
1785 u16 smid = 0;
1786 u32 ioc_state;
1787 unsigned long timeleft;
1788 u8 VF_ID = 0;
1789 unsigned long flags;
1790
1791 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
1792 if (ioc->tm_cmds.status != MPT2_CMD_NOT_USED ||
1793 ioc->shost_recovery) {
1794 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
1795 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
1796 __func__, ioc->name);
1797 return;
1798 }
1799 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
1800
1801 ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
1802 if (ioc_state & MPI2_DOORBELL_USED) {
1803 dhsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "unexpected doorbell "
1804 "active!\n", ioc->name));
1805 goto issue_host_reset;
1806 }
1807
1808 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
1809 mpt2sas_base_fault_info(ioc, ioc_state &
1810 MPI2_DOORBELL_DATA_MASK);
1811 goto issue_host_reset;
1812 }
1813
1814 smid = mpt2sas_base_get_smid(ioc, ioc->tm_cb_idx);
1815 if (!smid) {
1816 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
1817 ioc->name, __func__);
1818 return;
1819 }
1820
1821 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "sending tm: handle(0x%04x),"
1822 " task_type(0x%02x), smid(%d)\n", ioc->name, handle, type, smid));
1823 ioc->tm_cmds.status = MPT2_CMD_PENDING;
1824 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
1825 ioc->tm_cmds.smid = smid;
1826 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
1827 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
1828 mpi_request->DevHandle = cpu_to_le16(handle);
1829 mpi_request->TaskType = type;
1830 mpi_request->TaskMID = cpu_to_le16(smid_task);
1831 int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN);
1832 mpt2sas_scsih_set_tm_flag(ioc, handle);
1833 mpt2sas_base_put_smid_hi_priority(ioc, smid, VF_ID);
1834 timeleft = wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
1835 mpt2sas_scsih_clear_tm_flag(ioc, handle);
1836 if (!(ioc->tm_cmds.status & MPT2_CMD_COMPLETE)) {
1837 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
1838 ioc->name, __func__);
1839 _debug_dump_mf(mpi_request,
1840 sizeof(Mpi2SCSITaskManagementRequest_t)/4);
1841 if (!(ioc->tm_cmds.status & MPT2_CMD_RESET))
1842 goto issue_host_reset;
1843 }
1844
1845 if (ioc->tm_cmds.status & MPT2_CMD_REPLY_VALID) {
1846 mpi_reply = ioc->tm_cmds.reply;
1847 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "complete tm: "
1848 "ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n",
1849 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
1850 le32_to_cpu(mpi_reply->IOCLogInfo),
1851 le32_to_cpu(mpi_reply->TerminationCount)));
1852 if (ioc->logging_level & MPT_DEBUG_TM)
1853 _scsih_response_code(ioc, mpi_reply->ResponseCode);
1854 }
1855 return;
1856 issue_host_reset:
1857 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, FORCE_BIG_HAMMER);
1858}
1859
1860/**
d5d135b3 1861 * _scsih_abort - eh threads main abort routine
635374e7
EM		 1862 * @sdev: scsi device struct
1863 *
1864 * Returns SUCCESS if command aborted else FAILED
1865 */
1866static int
d5d135b3 1867_scsih_abort(struct scsi_cmnd *scmd)
635374e7
EM		 1868{
1869 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
1870 struct MPT2SAS_DEVICE *sas_device_priv_data;
1871 u16 smid;
1872 u16 handle;
1873 int r;
1874 struct scsi_cmnd *scmd_lookup;
1875
1876 printk(MPT2SAS_INFO_FMT "attempting task abort! scmd(%p)\n",
1877 ioc->name, scmd);
1878 scsi_print_command(scmd);
1879
1880 sas_device_priv_data = scmd->device->hostdata;
1881 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
1882 printk(MPT2SAS_INFO_FMT "device been deleted! scmd(%p)\n",
1883 ioc->name, scmd);
1884 scmd->result = DID_NO_CONNECT << 16;
1885 scmd->scsi_done(scmd);
1886 r = SUCCESS;
1887 goto out;
1888 }
1889
1890 /* search for the command */
1891 smid = _scsih_scsi_lookup_find_by_scmd(ioc, scmd);
1892 if (!smid) {
1893 scmd->result = DID_RESET << 16;
1894 r = SUCCESS;
1895 goto out;
1896 }
1897
1898 /* for hidden raid components and volumes this is not supported */
1899 if (sas_device_priv_data->sas_target->flags &
1900 MPT_TARGET_FLAGS_RAID_COMPONENT ||
1901 sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_VOLUME) {
1902 scmd->result = DID_RESET << 16;
1903 r = FAILED;
1904 goto out;
1905 }
1906
1907 mutex_lock(&ioc->tm_cmds.mutex);
1908 handle = sas_device_priv_data->sas_target->handle;
1909 mpt2sas_scsih_issue_tm(ioc, handle, sas_device_priv_data->lun,
1910 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30);
1911
1912 /* sanity check - see whether command actually completed */
1913 scmd_lookup = _scsih_scsi_lookup_get(ioc, smid);
1914 if (scmd_lookup && (scmd_lookup->serial_number == scmd->serial_number))
1915 r = FAILED;
1916 else
1917 r = SUCCESS;
1918 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
1919 mutex_unlock(&ioc->tm_cmds.mutex);
1920
1921 out:
1922 printk(MPT2SAS_INFO_FMT "task abort: %s scmd(%p)\n",
1923 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
1924 return r;
1925}
1926
635374e7 1927/**
d5d135b3 1928 * _scsih_dev_reset - eh threads main device reset routine
635374e7
EM		 1929 * @sdev: scsi device struct
1930 *
1931 * Returns SUCCESS if command aborted else FAILED
1932 */
1933static int
d5d135b3 1934_scsih_dev_reset(struct scsi_cmnd *scmd)
635374e7
EM		 1935{
1936 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
1937 struct MPT2SAS_DEVICE *sas_device_priv_data;
1938 struct _sas_device *sas_device;
1939 unsigned long flags;
1940 u16 handle;
1941 int r;
1942
993e0da7 1943 printk(MPT2SAS_INFO_FMT "attempting device reset! scmd(%p)\n",
635374e7
EM		 1944 ioc->name, scmd);
1945 scsi_print_command(scmd);
1946
1947 sas_device_priv_data = scmd->device->hostdata;
1948 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
1949 printk(MPT2SAS_INFO_FMT "device been deleted! scmd(%p)\n",
1950 ioc->name, scmd);
1951 scmd->result = DID_NO_CONNECT << 16;
1952 scmd->scsi_done(scmd);
1953 r = SUCCESS;
1954 goto out;
1955 }
1956
1957 /* for hidden raid components obtain the volume_handle */
1958 handle = 0;
1959 if (sas_device_priv_data->sas_target->flags &
1960 MPT_TARGET_FLAGS_RAID_COMPONENT) {
1961 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1962 sas_device = _scsih_sas_device_find_by_handle(ioc,
1963 sas_device_priv_data->sas_target->handle);
1964 if (sas_device)
1965 handle = sas_device->volume_handle;
1966 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1967 } else
1968 handle = sas_device_priv_data->sas_target->handle;
1969
1970 if (!handle) {
1971 scmd->result = DID_RESET << 16;
1972 r = FAILED;
1973 goto out;
1974 }
1975
993e0da7
EM		 1976 mutex_lock(&ioc->tm_cmds.mutex);
1977 mpt2sas_scsih_issue_tm(ioc, handle, 0,
1978 MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, scmd->device->lun,
1979 30);
1980
1981 /*
1982 * sanity check see whether all commands to this device been
1983 * completed
1984 */
1985 if (_scsih_scsi_lookup_find_by_lun(ioc, scmd->device->id,
1986 scmd->device->lun, scmd->device->channel))
1987 r = FAILED;
1988 else
1989 r = SUCCESS;
1990 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
1991 mutex_unlock(&ioc->tm_cmds.mutex);
1992
1993 out:
1994 printk(MPT2SAS_INFO_FMT "device reset: %s scmd(%p)\n",
1995 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
1996 return r;
1997}
1998
1999/**
d5d135b3 2000 * _scsih_target_reset - eh threads main target reset routine
993e0da7
EM		 2001 * @sdev: scsi device struct
2002 *
2003 * Returns SUCCESS if command aborted else FAILED
2004 */
2005static int
d5d135b3 2006_scsih_target_reset(struct scsi_cmnd *scmd)
993e0da7
EM		 2007{
2008 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2009 struct MPT2SAS_DEVICE *sas_device_priv_data;
2010 struct _sas_device *sas_device;
2011 unsigned long flags;
2012 u16 handle;
2013 int r;
2014
2015 printk(MPT2SAS_INFO_FMT "attempting target reset! scmd(%p)\n",
2016 ioc->name, scmd);
2017 scsi_print_command(scmd);
2018
2019 sas_device_priv_data = scmd->device->hostdata;
2020 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2021 printk(MPT2SAS_INFO_FMT "target been deleted! scmd(%p)\n",
2022 ioc->name, scmd);
2023 scmd->result = DID_NO_CONNECT << 16;
2024 scmd->scsi_done(scmd);
2025 r = SUCCESS;
2026 goto out;
2027 }
2028
2029 /* for hidden raid components obtain the volume_handle */
2030 handle = 0;
2031 if (sas_device_priv_data->sas_target->flags &
2032 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2033 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2034 sas_device = _scsih_sas_device_find_by_handle(ioc,
2035 sas_device_priv_data->sas_target->handle);
2036 if (sas_device)
2037 handle = sas_device->volume_handle;
2038 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2039 } else
2040 handle = sas_device_priv_data->sas_target->handle;
2041
2042 if (!handle) {
2043 scmd->result = DID_RESET << 16;
2044 r = FAILED;
2045 goto out;
2046 }
2047
635374e7
EM		 2048 mutex_lock(&ioc->tm_cmds.mutex);
2049 mpt2sas_scsih_issue_tm(ioc, handle, 0,
2050 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 30);
2051
2052 /*
2053 * sanity check see whether all commands to this target been
2054 * completed
2055 */
2056 if (_scsih_scsi_lookup_find_by_target(ioc, scmd->device->id,
2057 scmd->device->channel))
2058 r = FAILED;
2059 else
2060 r = SUCCESS;
2061 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
2062 mutex_unlock(&ioc->tm_cmds.mutex);
2063
2064 out:
2065 printk(MPT2SAS_INFO_FMT "target reset: %s scmd(%p)\n",
2066 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2067 return r;
2068}
2069
2070/**
d5d135b3 2071 * _scsih_abort - eh threads main host reset routine
635374e7
EM		 2072 * @sdev: scsi device struct
2073 *
2074 * Returns SUCCESS if command aborted else FAILED
2075 */
2076static int
d5d135b3 2077_scsih_host_reset(struct scsi_cmnd *scmd)
635374e7
EM		 2078{
2079 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2080 int r, retval;
2081
2082 printk(MPT2SAS_INFO_FMT "attempting host reset! scmd(%p)\n",
2083 ioc->name, scmd);
2084 scsi_print_command(scmd);
2085
2086 retval = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2087 FORCE_BIG_HAMMER);
2088 r = (retval < 0) ? FAILED : SUCCESS;
2089 printk(MPT2SAS_INFO_FMT "host reset: %s scmd(%p)\n",
2090 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2091
2092 return r;
2093}
2094
2095/**
2096 * _scsih_fw_event_add - insert and queue up fw_event
2097 * @ioc: per adapter object
2098 * @fw_event: object describing the event
2099 * Context: This function will acquire ioc->fw_event_lock.
2100 *
2101 * This adds the firmware event object into link list, then queues it up to
2102 * be processed from user context.
2103 *
2104 * Return nothing.
2105 */
2106static void
2107_scsih_fw_event_add(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
2108{
2109 unsigned long flags;
2110
2111 if (ioc->firmware_event_thread == NULL)
2112 return;
2113
2114 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2115 list_add_tail(&fw_event->list, &ioc->fw_event_list);
6f92a7a0
EM		 2116 INIT_WORK(&fw_event->work, _firmware_event_work);
2117 queue_work(ioc->firmware_event_thread, &fw_event->work);
635374e7
EM		 2118 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2119}
2120
2121/**
2122 * _scsih_fw_event_free - delete fw_event
2123 * @ioc: per adapter object
2124 * @fw_event: object describing the event
2125 * Context: This function will acquire ioc->fw_event_lock.
2126 *
2127 * This removes firmware event object from link list, frees associated memory.
2128 *
2129 * Return nothing.
2130 */
2131static void
2132_scsih_fw_event_free(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
2133 *fw_event)
2134{
2135 unsigned long flags;
2136
2137 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2138 list_del(&fw_event->list);
2139 kfree(fw_event->event_data);
2140 kfree(fw_event);
2141 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2142}
2143
2144/**
2145 * _scsih_fw_event_add - requeue an event
2146 * @ioc: per adapter object
2147 * @fw_event: object describing the event
2148 * Context: This function will acquire ioc->fw_event_lock.
2149 *
2150 * Return nothing.
2151 */
2152static void
2153_scsih_fw_event_requeue(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
2154 *fw_event, unsigned long delay)
2155{
2156 unsigned long flags;
2157 if (ioc->firmware_event_thread == NULL)
2158 return;
2159
2160 spin_lock_irqsave(&ioc->fw_event_lock, flags);
6f92a7a0 2161 queue_work(ioc->firmware_event_thread, &fw_event->work);
635374e7
EM		 2162 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2163}
2164
2165/**
2166 * _scsih_fw_event_off - turn flag off preventing event handling
2167 * @ioc: per adapter object
2168 *
2169 * Used to prevent handling of firmware events during adapter reset
2170 * driver unload.
2171 *
2172 * Return nothing.
2173 */
2174static void
2175_scsih_fw_event_off(struct MPT2SAS_ADAPTER *ioc)
2176{
2177 unsigned long flags;
2178
2179 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2180 ioc->fw_events_off = 1;
2181 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2182
2183}
2184
2185/**
2186 * _scsih_fw_event_on - turn flag on allowing firmware event handling
2187 * @ioc: per adapter object
2188 *
2189 * Returns nothing.
2190 */
2191static void
2192_scsih_fw_event_on(struct MPT2SAS_ADAPTER *ioc)
2193{
2194 unsigned long flags;
2195
2196 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2197 ioc->fw_events_off = 0;
2198 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2199}
2200
2201/**
2202 * _scsih_ublock_io_device - set the device state to SDEV_RUNNING
2203 * @ioc: per adapter object
2204 * @handle: device handle
2205 *
2206 * During device pull we need to appropiately set the sdev state.
2207 */
2208static void
2209_scsih_ublock_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2210{
2211 struct MPT2SAS_DEVICE *sas_device_priv_data;
2212 struct scsi_device *sdev;
2213
2214 shost_for_each_device(sdev, ioc->shost) {
2215 sas_device_priv_data = sdev->hostdata;
2216 if (!sas_device_priv_data)
2217 continue;
2218 if (!sas_device_priv_data->block)
2219 continue;
2220 if (sas_device_priv_data->sas_target->handle == handle) {
2221 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2222 MPT2SAS_INFO_FMT "SDEV_RUNNING: "
2223 "handle(0x%04x)\n", ioc->name, handle));
2224 sas_device_priv_data->block = 0;
2225 scsi_device_set_state(sdev, SDEV_RUNNING);
2226 }
2227 }
2228}
2229
2230/**
2231 * _scsih_block_io_device - set the device state to SDEV_BLOCK
2232 * @ioc: per adapter object
2233 * @handle: device handle
2234 *
2235 * During device pull we need to appropiately set the sdev state.
2236 */
2237static void
2238_scsih_block_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2239{
2240 struct MPT2SAS_DEVICE *sas_device_priv_data;
2241 struct scsi_device *sdev;
2242
2243 shost_for_each_device(sdev, ioc->shost) {
2244 sas_device_priv_data = sdev->hostdata;
2245 if (!sas_device_priv_data)
2246 continue;
2247 if (sas_device_priv_data->block)
2248 continue;
2249 if (sas_device_priv_data->sas_target->handle == handle) {
2250 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2251 MPT2SAS_INFO_FMT "SDEV_BLOCK: "
2252 "handle(0x%04x)\n", ioc->name, handle));
2253 sas_device_priv_data->block = 1;
2254 scsi_device_set_state(sdev, SDEV_BLOCK);
2255 }
2256 }
2257}
2258
2259/**
2260 * _scsih_block_io_to_children_attached_to_ex
2261 * @ioc: per adapter object
2262 * @sas_expander: the sas_device object
2263 *
2264 * This routine set sdev state to SDEV_BLOCK for all devices
2265 * attached to this expander. This function called when expander is
2266 * pulled.
2267 */
2268static void
2269_scsih_block_io_to_children_attached_to_ex(struct MPT2SAS_ADAPTER *ioc,
2270 struct _sas_node *sas_expander)
2271{
2272 struct _sas_port *mpt2sas_port;
2273 struct _sas_device *sas_device;
2274 struct _sas_node *expander_sibling;
2275 unsigned long flags;
2276
2277 if (!sas_expander)
2278 return;
2279
2280 list_for_each_entry(mpt2sas_port,
2281 &sas_expander->sas_port_list, port_list) {
2282 if (mpt2sas_port->remote_identify.device_type ==
2283 SAS_END_DEVICE) {
2284 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2285 sas_device =
2286 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
2287 mpt2sas_port->remote_identify.sas_address);
2288 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2289 if (!sas_device)
2290 continue;
2291 _scsih_block_io_device(ioc, sas_device->handle);
2292 }
2293 }
2294
2295 list_for_each_entry(mpt2sas_port,
2296 &sas_expander->sas_port_list, port_list) {
2297
2298 if (mpt2sas_port->remote_identify.device_type ==
2299 MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER ||
2300 mpt2sas_port->remote_identify.device_type ==
2301 MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) {
2302
2303 spin_lock_irqsave(&ioc->sas_node_lock, flags);
2304 expander_sibling =
2305 mpt2sas_scsih_expander_find_by_sas_address(
2306 ioc, mpt2sas_port->remote_identify.sas_address);
2307 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
2308 _scsih_block_io_to_children_attached_to_ex(ioc,
2309 expander_sibling);
2310 }
2311 }
2312}
2313
2314/**
2315 * _scsih_block_io_to_children_attached_directly
2316 * @ioc: per adapter object
2317 * @event_data: topology change event data
2318 *
2319 * This routine set sdev state to SDEV_BLOCK for all devices
2320 * direct attached during device pull.
2321 */
2322static void
2323_scsih_block_io_to_children_attached_directly(struct MPT2SAS_ADAPTER *ioc,
2324 Mpi2EventDataSasTopologyChangeList_t *event_data)
2325{
2326 int i;
2327 u16 handle;
2328 u16 reason_code;
2329 u8 phy_number;
2330
2331 for (i = 0; i < event_data->NumEntries; i++) {
2332 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
2333 if (!handle)
2334 continue;
2335 phy_number = event_data->StartPhyNum + i;
2336 reason_code = event_data->PHY[i].PhyStatus &
2337 MPI2_EVENT_SAS_TOPO_RC_MASK;
2338 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING)
2339 _scsih_block_io_device(ioc, handle);
2340 }
2341}
2342
2343/**
2344 * _scsih_check_topo_delete_events - sanity check on topo events
2345 * @ioc: per adapter object
2346 * @event_data: the event data payload
2347 *
2348 * This routine added to better handle cable breaker.
2349 *
2350 * This handles the case where driver recieves multiple expander
2351 * add and delete events in a single shot. When there is a delete event
2352 * the routine will void any pending add events waiting in the event queue.
2353 *
2354 * Return nothing.
2355 */
2356static void
2357_scsih_check_topo_delete_events(struct MPT2SAS_ADAPTER *ioc,
2358 Mpi2EventDataSasTopologyChangeList_t *event_data)
2359{
2360 struct fw_event_work *fw_event;
2361 Mpi2EventDataSasTopologyChangeList_t *local_event_data;
2362 u16 expander_handle;
2363 struct _sas_node *sas_expander;
2364 unsigned long flags;
2365
2366 expander_handle = le16_to_cpu(event_data->ExpanderDevHandle);
2367 if (expander_handle < ioc->sas_hba.num_phys) {
2368 _scsih_block_io_to_children_attached_directly(ioc, event_data);
2369 return;
2370 }
2371
2372 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING
2373 || event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING) {
2374 spin_lock_irqsave(&ioc->sas_node_lock, flags);
2375 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
2376 expander_handle);
2377 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
2378 _scsih_block_io_to_children_attached_to_ex(ioc, sas_expander);
2379 } else if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_RESPONDING)
2380 _scsih_block_io_to_children_attached_directly(ioc, event_data);
2381
2382 if (event_data->ExpStatus != MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
2383 return;
2384
2385 /* mark ignore flag for pending events */
2386 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2387 list_for_each_entry(fw_event, &ioc->fw_event_list, list) {
2388 if (fw_event->event != MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
2389 fw_event->ignore)
2390 continue;
2391 local_event_data = fw_event->event_data;
2392 if (local_event_data->ExpStatus ==
2393 MPI2_EVENT_SAS_TOPO_ES_ADDED ||
2394 local_event_data->ExpStatus ==
2395 MPI2_EVENT_SAS_TOPO_ES_RESPONDING) {
2396 if (le16_to_cpu(local_event_data->ExpanderDevHandle) ==
2397 expander_handle) {
2398 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT
2399 "setting ignoring flag\n", ioc->name));
2400 fw_event->ignore = 1;
2401 }
2402 }
2403 }
2404 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2405}
2406
2407/**
2408 * _scsih_queue_rescan - queue a topology rescan from user context
2409 * @ioc: per adapter object
2410 *
2411 * Return nothing.
2412 */
2413static void
2414_scsih_queue_rescan(struct MPT2SAS_ADAPTER *ioc)
2415{
2416 struct fw_event_work *fw_event;
2417
2418 if (ioc->wait_for_port_enable_to_complete)
2419 return;
2420 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
2421 if (!fw_event)
2422 return;
2423 fw_event->event = MPT2SAS_RESCAN_AFTER_HOST_RESET;
2424 fw_event->ioc = ioc;
2425 _scsih_fw_event_add(ioc, fw_event);
2426}
2427
2428/**
2429 * _scsih_flush_running_cmds - completing outstanding commands.
2430 * @ioc: per adapter object
2431 *
2432 * The flushing out of all pending scmd commands following host reset,
2433 * where all IO is dropped to the floor.
2434 *
2435 * Return nothing.
2436 */
2437static void
2438_scsih_flush_running_cmds(struct MPT2SAS_ADAPTER *ioc)
2439{
2440 struct scsi_cmnd *scmd;
2441 u16 smid;
2442 u16 count = 0;
2443
2444 for (smid = 1; smid <= ioc->request_depth; smid++) {
2445 scmd = _scsih_scsi_lookup_getclear(ioc, smid);
2446 if (!scmd)
2447 continue;
2448 count++;
2449 mpt2sas_base_free_smid(ioc, smid);
2450 scsi_dma_unmap(scmd);
2451 scmd->result = DID_RESET << 16;
2452 scmd->scsi_done(scmd);
2453 }
2454 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "completing %d cmds\n",
2455 ioc->name, count));
2456}
2457
2458/**
2459 * mpt2sas_scsih_reset_handler - reset callback handler (for scsih)
2460 * @ioc: per adapter object
2461 * @reset_phase: phase
2462 *
2463 * The handler for doing any required cleanup or initialization.
2464 *
2465 * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
2466 * MPT2_IOC_DONE_RESET
2467 *
2468 * Return nothing.
2469 */
2470void
2471mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
2472{
2473 switch (reset_phase) {
2474 case MPT2_IOC_PRE_RESET:
2475 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
2476 "MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
2477 _scsih_fw_event_off(ioc);
2478 break;
2479 case MPT2_IOC_AFTER_RESET:
2480 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
2481 "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
2482 if (ioc->tm_cmds.status & MPT2_CMD_PENDING) {
2483 ioc->tm_cmds.status |= MPT2_CMD_RESET;
2484 mpt2sas_base_free_smid(ioc, ioc->tm_cmds.smid);
2485 complete(&ioc->tm_cmds.done);
2486 }
2487 _scsih_fw_event_on(ioc);
2488 _scsih_flush_running_cmds(ioc);
2489 break;
2490 case MPT2_IOC_DONE_RESET:
2491 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
2492 "MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
2493 _scsih_queue_rescan(ioc);
2494 break;
2495 }
2496}
2497
3c621b3e
EM		 2498/**
2499 * _scsih_setup_eedp - setup MPI request for EEDP transfer
2500 * @scmd: pointer to scsi command object
2501 * @mpi_request: pointer to the SCSI_IO reqest message frame
2502 *
2503 * Supporting protection 1 and 3.
2504 *
2505 * Returns nothing
2506 */
2507static void
2508_scsih_setup_eedp(struct scsi_cmnd *scmd, Mpi2SCSIIORequest_t *mpi_request)
2509{
2510 u16 eedp_flags;
2511 unsigned char prot_op = scsi_get_prot_op(scmd);
2512 unsigned char prot_type = scsi_get_prot_type(scmd);
2513
2514 if (prot_type == SCSI_PROT_DIF_TYPE0 ||
2515 prot_type == SCSI_PROT_DIF_TYPE2 ||
2516 prot_op == SCSI_PROT_NORMAL)
2517 return;
2518
2519 if (prot_op == SCSI_PROT_READ_STRIP)
2520 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP;
2521 else if (prot_op == SCSI_PROT_WRITE_INSERT)
2522 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_INSERT_OP;
2523 else
2524 return;
2525
2526 mpi_request->EEDPBlockSize = scmd->device->sector_size;
2527
2528 switch (prot_type) {
2529 case SCSI_PROT_DIF_TYPE1:
2530
2531 /*
2532 * enable ref/guard checking
2533 * auto increment ref tag
2534 */
2535 mpi_request->EEDPFlags = eedp_flags |
2536 MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
2537 MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
2538 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
2539 mpi_request->CDB.EEDP32.PrimaryReferenceTag =
2540 cpu_to_be32(scsi_get_lba(scmd));
2541
2542 break;
2543
2544 case SCSI_PROT_DIF_TYPE3:
2545
2546 /*
2547 * enable guard checking
2548 */
2549 mpi_request->EEDPFlags = eedp_flags |
2550 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
2551
2552 break;
2553 }
2554}
2555
2556/**
2557 * _scsih_eedp_error_handling - return sense code for EEDP errors
2558 * @scmd: pointer to scsi command object
2559 * @ioc_status: ioc status
2560 *
2561 * Returns nothing
2562 */
2563static void
2564_scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status)
2565{
2566 u8 ascq;
2567 u8 sk;
2568 u8 host_byte;
2569
2570 switch (ioc_status) {
2571 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
2572 ascq = 0x01;
2573 break;
2574 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
2575 ascq = 0x02;
2576 break;
2577 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
2578 ascq = 0x03;
2579 break;
2580 default:
2581 ascq = 0x00;
2582 break;
2583 }
2584
2585 if (scmd->sc_data_direction == DMA_TO_DEVICE) {
2586 sk = ILLEGAL_REQUEST;
2587 host_byte = DID_ABORT;
2588 } else {
2589 sk = ABORTED_COMMAND;
2590 host_byte = DID_OK;
2591 }
2592
2593 scsi_build_sense_buffer(0, scmd->sense_buffer, sk, 0x10, ascq);
2594 scmd->result = DRIVER_SENSE << 24 | (host_byte << 16) |
2595 SAM_STAT_CHECK_CONDITION;
2596}
2597
635374e7 2598/**
d5d135b3 2599 * _scsih_qcmd - main scsi request entry point
635374e7
EM		 2600 * @scmd: pointer to scsi command object
2601 * @done: function pointer to be invoked on completion
2602 *
2603 * The callback index is set inside `ioc->scsi_io_cb_idx`.
2604 *
2605 * Returns 0 on success. If there's a failure, return either:
2606 * SCSI_MLQUEUE_DEVICE_BUSY if the device queue is full, or
2607 * SCSI_MLQUEUE_HOST_BUSY if the entire host queue is full
2608 */
2609static int
d5d135b3 2610_scsih_qcmd(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
635374e7
EM		 2611{
2612 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2613 struct MPT2SAS_DEVICE *sas_device_priv_data;
2614 struct MPT2SAS_TARGET *sas_target_priv_data;
2615 Mpi2SCSIIORequest_t *mpi_request;
2616 u32 mpi_control;
2617 u16 smid;
2618 unsigned long flags;
2619
2620 scmd->scsi_done = done;
2621 sas_device_priv_data = scmd->device->hostdata;
2622 if (!sas_device_priv_data) {
2623 scmd->result = DID_NO_CONNECT << 16;
2624 scmd->scsi_done(scmd);
2625 return 0;
2626 }
2627
2628 sas_target_priv_data = sas_device_priv_data->sas_target;
2629 if (!sas_target_priv_data || sas_target_priv_data->handle ==
2630 MPT2SAS_INVALID_DEVICE_HANDLE || sas_target_priv_data->deleted) {
2631 scmd->result = DID_NO_CONNECT << 16;
2632 scmd->scsi_done(scmd);
2633 return 0;
2634 }
2635
2636 /* see if we are busy with task managment stuff */
2637 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
2638 if (sas_target_priv_data->tm_busy ||
2639 ioc->shost_recovery || ioc->ioc_link_reset_in_progress) {
2640 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
2641 return SCSI_MLQUEUE_HOST_BUSY;
2642 }
2643 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
2644
2645 if (scmd->sc_data_direction == DMA_FROM_DEVICE)
2646 mpi_control = MPI2_SCSIIO_CONTROL_READ;
2647 else if (scmd->sc_data_direction == DMA_TO_DEVICE)
2648 mpi_control = MPI2_SCSIIO_CONTROL_WRITE;
2649 else
2650 mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER;
2651
2652 /* set tags */
2653 if (!(sas_device_priv_data->flags & MPT_DEVICE_FLAGS_INIT)) {
2654 if (scmd->device->tagged_supported) {
2655 if (scmd->device->ordered_tags)
2656 mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ;
2657 else
2658 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
2659 } else
2660/* MPI Revision I (UNIT = 0xA) - removed MPI2_SCSIIO_CONTROL_UNTAGGED */
2661/* mpi_control |= MPI2_SCSIIO_CONTROL_UNTAGGED;
2662 */
2663 mpi_control |= (0x500);
2664
2665 } else
2666 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
2667
2668 if ((sas_device_priv_data->flags & MPT_DEVICE_TLR_ON))
2669 mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
2670
2671 smid = mpt2sas_base_get_smid(ioc, ioc->scsi_io_cb_idx);
2672 if (!smid) {
2673 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
2674 ioc->name, __func__);
2675 goto out;
2676 }
2677 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
2678 memset(mpi_request, 0, sizeof(Mpi2SCSIIORequest_t));
3c621b3e 2679 _scsih_setup_eedp(scmd, mpi_request);
635374e7
EM		 2680 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
2681 if (sas_device_priv_data->sas_target->flags &
2682 MPT_TARGET_FLAGS_RAID_COMPONENT)
2683 mpi_request->Function = MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
2684 else
2685 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
2686 mpi_request->DevHandle =
2687 cpu_to_le16(sas_device_priv_data->sas_target->handle);
2688 mpi_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
2689 mpi_request->Control = cpu_to_le32(mpi_control);
2690 mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len);
2691 mpi_request->MsgFlags = MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR;
2692 mpi_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
2693 mpi_request->SenseBufferLowAddress =
2694 (u32)mpt2sas_base_get_sense_buffer_dma(ioc, smid);
2695 mpi_request->SGLOffset0 = offsetof(Mpi2SCSIIORequest_t, SGL) / 4;
2696 mpi_request->SGLFlags = cpu_to_le16(MPI2_SCSIIO_SGLFLAGS_TYPE_MPI +
2697 MPI2_SCSIIO_SGLFLAGS_SYSTEM_ADDR);
2698
2699 int_to_scsilun(sas_device_priv_data->lun, (struct scsi_lun *)
2700 mpi_request->LUN);
2701 memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
2702
2703 if (!mpi_request->DataLength) {
2704 mpt2sas_base_build_zero_len_sge(ioc, &mpi_request->SGL);
2705 } else {
2706 if (_scsih_build_scatter_gather(ioc, scmd, smid)) {
2707 mpt2sas_base_free_smid(ioc, smid);
2708 goto out;
2709 }
2710 }
2711
2712 _scsih_scsi_lookup_set(ioc, smid, scmd);
2713 mpt2sas_base_put_smid_scsi_io(ioc, smid, 0,
2714 sas_device_priv_data->sas_target->handle);
2715 return 0;
2716
2717 out:
2718 return SCSI_MLQUEUE_HOST_BUSY;
2719}
2720
2721/**
2722 * _scsih_normalize_sense - normalize descriptor and fixed format sense data
2723 * @sense_buffer: sense data returned by target
2724 * @data: normalized skey/asc/ascq
2725 *
2726 * Return nothing.
2727 */
2728static void
2729_scsih_normalize_sense(char *sense_buffer, struct sense_info *data)
2730{
2731 if ((sense_buffer[0] & 0x7F) >= 0x72) {
2732 /* descriptor format */
2733 data->skey = sense_buffer[1] & 0x0F;
2734 data->asc = sense_buffer[2];
2735 data->ascq = sense_buffer[3];
2736 } else {
2737 /* fixed format */
2738 data->skey = sense_buffer[2] & 0x0F;
2739 data->asc = sense_buffer[12];
2740 data->ascq = sense_buffer[13];
2741 }
2742}
2743
2744#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
2745/**
2746 * _scsih_scsi_ioc_info - translated non-succesfull SCSI_IO request
2747 * @ioc: per adapter object
2748 * @scmd: pointer to scsi command object
2749 * @mpi_reply: reply mf payload returned from firmware
2750 *
2751 * scsi_status - SCSI Status code returned from target device
2752 * scsi_state - state info associated with SCSI_IO determined by ioc
2753 * ioc_status - ioc supplied status info
2754 *
2755 * Return nothing.
2756 */
2757static void
2758_scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
2759 Mpi2SCSIIOReply_t *mpi_reply, u16 smid)
2760{
2761 u32 response_info;
2762 u8 *response_bytes;
2763 u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
2764 MPI2_IOCSTATUS_MASK;
2765 u8 scsi_state = mpi_reply->SCSIState;
2766 u8 scsi_status = mpi_reply->SCSIStatus;
2767 char *desc_ioc_state = NULL;
2768 char *desc_scsi_status = NULL;
2769 char *desc_scsi_state = ioc->tmp_string;
2770
2771 switch (ioc_status) {
2772 case MPI2_IOCSTATUS_SUCCESS:
2773 desc_ioc_state = "success";
2774 break;
2775 case MPI2_IOCSTATUS_INVALID_FUNCTION:
2776 desc_ioc_state = "invalid function";
2777 break;
2778 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
2779 desc_ioc_state = "scsi recovered error";
2780 break;
2781 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
2782 desc_ioc_state = "scsi invalid dev handle";
2783 break;
2784 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
2785 desc_ioc_state = "scsi device not there";
2786 break;
2787 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
2788 desc_ioc_state = "scsi data overrun";
2789 break;
2790 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
2791 desc_ioc_state = "scsi data underrun";
2792 break;
2793 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
2794 desc_ioc_state = "scsi io data error";
2795 break;
2796 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
2797 desc_ioc_state = "scsi protocol error";
2798 break;
2799 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
2800 desc_ioc_state = "scsi task terminated";
2801 break;
2802 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
2803 desc_ioc_state = "scsi residual mismatch";
2804 break;
2805 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
2806 desc_ioc_state = "scsi task mgmt failed";
2807 break;
2808 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
2809 desc_ioc_state = "scsi ioc terminated";
2810 break;
2811 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
2812 desc_ioc_state = "scsi ext terminated";
2813 break;
3c621b3e
EM		 2814 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
2815 desc_ioc_state = "eedp guard error";
2816 break;
2817 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
2818 desc_ioc_state = "eedp ref tag error";
2819 break;
2820 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
2821 desc_ioc_state = "eedp app tag error";
2822 break;
635374e7
EM		 2823 default:
2824 desc_ioc_state = "unknown";
2825 break;
2826 }
2827
2828 switch (scsi_status) {
2829 case MPI2_SCSI_STATUS_GOOD:
2830 desc_scsi_status = "good";
2831 break;
2832 case MPI2_SCSI_STATUS_CHECK_CONDITION:
2833 desc_scsi_status = "check condition";
2834 break;
2835 case MPI2_SCSI_STATUS_CONDITION_MET:
2836 desc_scsi_status = "condition met";
2837 break;
2838 case MPI2_SCSI_STATUS_BUSY:
2839 desc_scsi_status = "busy";
2840 break;
2841 case MPI2_SCSI_STATUS_INTERMEDIATE:
2842 desc_scsi_status = "intermediate";
2843 break;
2844 case MPI2_SCSI_STATUS_INTERMEDIATE_CONDMET:
2845 desc_scsi_status = "intermediate condmet";
2846 break;
2847 case MPI2_SCSI_STATUS_RESERVATION_CONFLICT:
2848 desc_scsi_status = "reservation conflict";
2849 break;
2850 case MPI2_SCSI_STATUS_COMMAND_TERMINATED:
2851 desc_scsi_status = "command terminated";
2852 break;
2853 case MPI2_SCSI_STATUS_TASK_SET_FULL:
2854 desc_scsi_status = "task set full";
2855 break;
2856 case MPI2_SCSI_STATUS_ACA_ACTIVE:
2857 desc_scsi_status = "aca active";
2858 break;
2859 case MPI2_SCSI_STATUS_TASK_ABORTED:
2860 desc_scsi_status = "task aborted";
2861 break;
2862 default:
2863 desc_scsi_status = "unknown";
2864 break;
2865 }
2866
2867 desc_scsi_state[0] = '\0';
2868 if (!scsi_state)
2869 desc_scsi_state = " ";
2870 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
2871 strcat(desc_scsi_state, "response info ");
2872 if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
2873 strcat(desc_scsi_state, "state terminated ");
2874 if (scsi_state & MPI2_SCSI_STATE_NO_SCSI_STATUS)
2875 strcat(desc_scsi_state, "no status ");
2876 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_FAILED)
2877 strcat(desc_scsi_state, "autosense failed ");
2878 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID)
2879 strcat(desc_scsi_state, "autosense valid ");
2880
2881 scsi_print_command(scmd);
2882 printk(MPT2SAS_WARN_FMT "\tdev handle(0x%04x), "
2883 "ioc_status(%s)(0x%04x), smid(%d)\n", ioc->name,
2884 le16_to_cpu(mpi_reply->DevHandle), desc_ioc_state,
2885 ioc_status, smid);
2886 printk(MPT2SAS_WARN_FMT "\trequest_len(%d), underflow(%d), "
2887 "resid(%d)\n", ioc->name, scsi_bufflen(scmd), scmd->underflow,
2888 scsi_get_resid(scmd));
2889 printk(MPT2SAS_WARN_FMT "\ttag(%d), transfer_count(%d), "
2890 "sc->result(0x%08x)\n", ioc->name, le16_to_cpu(mpi_reply->TaskTag),
2891 le32_to_cpu(mpi_reply->TransferCount), scmd->result);
2892 printk(MPT2SAS_WARN_FMT "\tscsi_status(%s)(0x%02x), "
2893 "scsi_state(%s)(0x%02x)\n", ioc->name, desc_scsi_status,
2894 scsi_status, desc_scsi_state, scsi_state);
2895
2896 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
2897 struct sense_info data;
2898 _scsih_normalize_sense(scmd->sense_buffer, &data);
2899 printk(MPT2SAS_WARN_FMT "\t[sense_key,asc,ascq]: "
2900 "[0x%02x,0x%02x,0x%02x]\n", ioc->name, data.skey,
2901 data.asc, data.ascq);
2902 }
2903
2904 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
2905 response_info = le32_to_cpu(mpi_reply->ResponseInfo);
2906 response_bytes = (u8 *)&response_info;
2907 _scsih_response_code(ioc, response_bytes[3]);
2908 }
2909}
2910#endif
2911
2912/**
2913 * _scsih_smart_predicted_fault - illuminate Fault LED
2914 * @ioc: per adapter object
2915 * @handle: device handle
2916 *
2917 * Return nothing.
2918 */
2919static void
2920_scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2921{
2922 Mpi2SepReply_t mpi_reply;
2923 Mpi2SepRequest_t mpi_request;
2924 struct scsi_target *starget;
2925 struct MPT2SAS_TARGET *sas_target_priv_data;
2926 Mpi2EventNotificationReply_t *event_reply;
2927 Mpi2EventDataSasDeviceStatusChange_t *event_data;
2928 struct _sas_device *sas_device;
2929 ssize_t sz;
2930 unsigned long flags;
2931
2932 /* only handle non-raid devices */
2933 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2934 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
2935 if (!sas_device) {
2936 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2937 return;
2938 }
2939 starget = sas_device->starget;
2940 sas_target_priv_data = starget->hostdata;
2941
2942 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) ||
2943 ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) {
2944 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2945 return;
2946 }
2947 starget_printk(KERN_WARNING, starget, "predicted fault\n");
2948 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2949
2950 if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM) {
2951 memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t));
2952 mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
2953 mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS;
2954 mpi_request.SlotStatus =
2955 MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT;
2956 mpi_request.DevHandle = cpu_to_le16(handle);
2957 mpi_request.Flags = MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS;
2958 if ((mpt2sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
2959 &mpi_request)) != 0) {
2960 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
2961 ioc->name, __FILE__, __LINE__, __func__);
2962 return;
2963 }
2964
2965 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) {
2966 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
2967 "enclosure_processor: ioc_status (0x%04x), "
2968 "loginfo(0x%08x)\n", ioc->name,
2969 le16_to_cpu(mpi_reply.IOCStatus),
2970 le32_to_cpu(mpi_reply.IOCLogInfo)));
2971 return;
2972 }
2973 }
2974
2975 /* insert into event log */
2976 sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
2977 sizeof(Mpi2EventDataSasDeviceStatusChange_t);
2978 event_reply = kzalloc(sz, GFP_KERNEL);
2979 if (!event_reply) {
2980 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
2981 ioc->name, __FILE__, __LINE__, __func__);
2982 return;
2983 }
2984
2985 event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
2986 event_reply->Event =
2987 cpu_to_le16(MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
2988 event_reply->MsgLength = sz/4;
2989 event_reply->EventDataLength =
2990 cpu_to_le16(sizeof(Mpi2EventDataSasDeviceStatusChange_t)/4);
2991 event_data = (Mpi2EventDataSasDeviceStatusChange_t *)
2992 event_reply->EventData;
2993 event_data->ReasonCode = MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA;
2994 event_data->ASC = 0x5D;
2995 event_data->DevHandle = cpu_to_le16(handle);
2996 event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address);
2997 mpt2sas_ctl_add_to_event_log(ioc, event_reply);
2998 kfree(event_reply);
2999}
3000
3001/**
d5d135b3 3002 * _scsih_io_done - scsi request callback
635374e7
EM		 3003 * @ioc: per adapter object
3004 * @smid: system request message index
3005 * @VF_ID: virtual function id
3006 * @reply: reply message frame(lower 32bit addr)
3007 *
3008 * Callback handler when using scsih_qcmd.
3009 *
3010 * Return nothing.
3011 */
3012static void
d5d135b3 3013_scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply)
635374e7
EM		 3014{
3015 Mpi2SCSIIORequest_t *mpi_request;
3016 Mpi2SCSIIOReply_t *mpi_reply;
3017 struct scsi_cmnd *scmd;
3018 u16 ioc_status;
3019 u32 xfer_cnt;
3020 u8 scsi_state;
3021 u8 scsi_status;
3022 u32 log_info;
3023 struct MPT2SAS_DEVICE *sas_device_priv_data;
3024 u32 response_code;
3025
3026 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
3027 scmd = _scsih_scsi_lookup_getclear(ioc, smid);
3028 if (scmd == NULL)
3029 return;
3030
3031 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3032
3033 if (mpi_reply == NULL) {
3034 scmd->result = DID_OK << 16;
3035 goto out;
3036 }
3037
3038 sas_device_priv_data = scmd->device->hostdata;
3039 if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
3040 sas_device_priv_data->sas_target->deleted) {
3041 scmd->result = DID_NO_CONNECT << 16;
3042 goto out;
3043 }
3044
3045 /* turning off TLR */
3046 if (!sas_device_priv_data->tlr_snoop_check) {
3047 sas_device_priv_data->tlr_snoop_check++;
3048 if (sas_device_priv_data->flags & MPT_DEVICE_TLR_ON) {
3049 response_code = (le32_to_cpu(mpi_reply->ResponseInfo)
3050 >> 24);
3051 if (response_code ==
3052 MPI2_SCSITASKMGMT_RSP_INVALID_FRAME)
3053 sas_device_priv_data->flags &=
3054 ~MPT_DEVICE_TLR_ON;
3055 }
3056 }
3057
3058 xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
3059 scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
3060 ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
3061 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
3062 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
3063 else
3064 log_info = 0;
3065 ioc_status &= MPI2_IOCSTATUS_MASK;
3066 scsi_state = mpi_reply->SCSIState;
3067 scsi_status = mpi_reply->SCSIStatus;
3068
3069 if (ioc_status == MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
3070 (scsi_status == MPI2_SCSI_STATUS_BUSY ||
3071 scsi_status == MPI2_SCSI_STATUS_RESERVATION_CONFLICT ||
3072 scsi_status == MPI2_SCSI_STATUS_TASK_SET_FULL)) {
3073 ioc_status = MPI2_IOCSTATUS_SUCCESS;
3074 }
3075
3076 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
3077 struct sense_info data;
3078 const void *sense_data = mpt2sas_base_get_sense_buffer(ioc,
3079 smid);
0d04df9b 3080 u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
635374e7 3081 le32_to_cpu(mpi_reply->SenseCount));
0d04df9b 3082 memcpy(scmd->sense_buffer, sense_data, sz);
635374e7
EM		 3083 _scsih_normalize_sense(scmd->sense_buffer, &data);
3084 /* failure prediction threshold exceeded */
3085 if (data.asc == 0x5D)
3086 _scsih_smart_predicted_fault(ioc,
3087 le16_to_cpu(mpi_reply->DevHandle));
3088 }
3089
3090 switch (ioc_status) {
3091 case MPI2_IOCSTATUS_BUSY:
3092 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
3093 scmd->result = SAM_STAT_BUSY;
3094 break;
3095
3096 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
3097 scmd->result = DID_NO_CONNECT << 16;
3098 break;
3099
3100 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
3101 if (sas_device_priv_data->block) {
3102 scmd->result = (DID_BUS_BUSY << 16);
3103 break;
3104 }
3105
3106 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
3107 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
3108 scmd->result = DID_RESET << 16;
3109 break;
3110
3111 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
3112 if ((xfer_cnt == 0) || (scmd->underflow > xfer_cnt))
3113 scmd->result = DID_SOFT_ERROR << 16;
3114 else
3115 scmd->result = (DID_OK << 16) | scsi_status;
3116 break;
3117
3118 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
3119 scmd->result = (DID_OK << 16) | scsi_status;
3120
3121 if ((scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID))
3122 break;
3123
3124 if (xfer_cnt < scmd->underflow) {
3125 if (scsi_status == SAM_STAT_BUSY)
3126 scmd->result = SAM_STAT_BUSY;
3127 else
3128 scmd->result = DID_SOFT_ERROR << 16;
3129 } else if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
3130 MPI2_SCSI_STATE_NO_SCSI_STATUS))
3131 scmd->result = DID_SOFT_ERROR << 16;
3132 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
3133 scmd->result = DID_RESET << 16;
3134 else if (!xfer_cnt && scmd->cmnd[0] == REPORT_LUNS) {
3135 mpi_reply->SCSIState = MPI2_SCSI_STATE_AUTOSENSE_VALID;
3136 mpi_reply->SCSIStatus = SAM_STAT_CHECK_CONDITION;
3137 scmd->result = (DRIVER_SENSE << 24) |
3138 SAM_STAT_CHECK_CONDITION;
3139 scmd->sense_buffer[0] = 0x70;
3140 scmd->sense_buffer[2] = ILLEGAL_REQUEST;
3141 scmd->sense_buffer[12] = 0x20;
3142 scmd->sense_buffer[13] = 0;
3143 }
3144 break;
3145
3146 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
3147 scsi_set_resid(scmd, 0);
3148 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
3149 case MPI2_IOCSTATUS_SUCCESS:
3150 scmd->result = (DID_OK << 16) | scsi_status;
3151 if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
3152 MPI2_SCSI_STATE_NO_SCSI_STATUS))
3153 scmd->result = DID_SOFT_ERROR << 16;
3154 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
3155 scmd->result = DID_RESET << 16;
3156 break;
3157
3c621b3e
EM		 3158 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
3159 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
3160 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
3161 _scsih_eedp_error_handling(scmd, ioc_status);
3162 break;
635374e7
EM		 3163 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
3164 case MPI2_IOCSTATUS_INVALID_FUNCTION:
3165 case MPI2_IOCSTATUS_INVALID_SGL:
3166 case MPI2_IOCSTATUS_INTERNAL_ERROR:
3167 case MPI2_IOCSTATUS_INVALID_FIELD:
3168 case MPI2_IOCSTATUS_INVALID_STATE:
3169 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
3170 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
3171 default:
3172 scmd->result = DID_SOFT_ERROR << 16;
3173 break;
3174
3175 }
3176
3177#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3178 if (scmd->result && (ioc->logging_level & MPT_DEBUG_REPLY))
3179 _scsih_scsi_ioc_info(ioc , scmd, mpi_reply, smid);
3180#endif
3181
3182 out:
3183 scsi_dma_unmap(scmd);
3184 scmd->scsi_done(scmd);
3185}
3186
3187/**
3188 * _scsih_link_change - process phy link changes
3189 * @ioc: per adapter object
3190 * @handle: phy handle
3191 * @attached_handle: valid for devices attached to link
3192 * @phy_number: phy number
3193 * @link_rate: new link rate
3194 * Context: user.
3195 *
3196 * Return nothing.
3197 */
3198static void
3199_scsih_link_change(struct MPT2SAS_ADAPTER *ioc, u16 handle, u16 attached_handle,
3200 u8 phy_number, u8 link_rate)
3201{
3202 mpt2sas_transport_update_phy_link_change(ioc, handle, attached_handle,
3203 phy_number, link_rate);
3204}
3205
3206/**
3207 * _scsih_sas_host_refresh - refreshing sas host object contents
3208 * @ioc: per adapter object
3209 * @update: update link information
3210 * Context: user
3211 *
3212 * During port enable, fw will send topology events for every device. Its
3213 * possible that the handles may change from the previous setting, so this
3214 * code keeping handles updating if changed.
3215 *
3216 * Return nothing.
3217 */
3218static void
3219_scsih_sas_host_refresh(struct MPT2SAS_ADAPTER *ioc, u8 update)
3220{
3221 u16 sz;
3222 u16 ioc_status;
3223 int i;
3224 Mpi2ConfigReply_t mpi_reply;
3225 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
3226
3227 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT
3228 "updating handles for sas_host(0x%016llx)\n",
3229 ioc->name, (unsigned long long)ioc->sas_hba.sas_address));
3230
3231 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys
3232 * sizeof(Mpi2SasIOUnit0PhyData_t));
3233 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
3234 if (!sas_iounit_pg0) {
3235 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3236 ioc->name, __FILE__, __LINE__, __func__);
3237 return;
3238 }
3239 if (!(mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
3240 sas_iounit_pg0, sz))) {
3241 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3242 MPI2_IOCSTATUS_MASK;
3243 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
3244 goto out;
3245 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
3246 ioc->sas_hba.phy[i].handle =
3247 le16_to_cpu(sas_iounit_pg0->PhyData[i].
3248 ControllerDevHandle);
3249 if (update)
3250 _scsih_link_change(ioc,
3251 ioc->sas_hba.phy[i].handle,
3252 le16_to_cpu(sas_iounit_pg0->PhyData[i].
3253 AttachedDevHandle), i,
3254 sas_iounit_pg0->PhyData[i].
3255 NegotiatedLinkRate >> 4);
3256 }
3257 }
3258
3259 out:
3260 kfree(sas_iounit_pg0);
3261}
3262
3263/**
3264 * _scsih_sas_host_add - create sas host object
3265 * @ioc: per adapter object
3266 *
3267 * Creating host side data object, stored in ioc->sas_hba
3268 *
3269 * Return nothing.
3270 */
3271static void
3272_scsih_sas_host_add(struct MPT2SAS_ADAPTER *ioc)
3273{
3274 int i;
3275 Mpi2ConfigReply_t mpi_reply;
3276 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
3277 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
3278 Mpi2SasPhyPage0_t phy_pg0;
3279 Mpi2SasDevicePage0_t sas_device_pg0;
3280 Mpi2SasEnclosurePage0_t enclosure_pg0;
3281 u16 ioc_status;
3282 u16 sz;
3283 u16 device_missing_delay;
3284
3285 mpt2sas_config_get_number_hba_phys(ioc, &ioc->sas_hba.num_phys);
3286 if (!ioc->sas_hba.num_phys) {
3287 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3288 ioc->name, __FILE__, __LINE__, __func__);
3289 return;
3290 }
3291
3292 /* sas_iounit page 0 */
3293 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys *
3294 sizeof(Mpi2SasIOUnit0PhyData_t));
3295 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
3296 if (!sas_iounit_pg0) {
3297 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3298 ioc->name, __FILE__, __LINE__, __func__);
3299 return;
3300 }
3301 if ((mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
3302 sas_iounit_pg0, sz))) {
3303 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3304 ioc->name, __FILE__, __LINE__, __func__);
3305 goto out;
3306 }
3307 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3308 MPI2_IOCSTATUS_MASK;
3309 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3310 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3311 ioc->name, __FILE__, __LINE__, __func__);
3312 goto out;
3313 }
3314
3315 /* sas_iounit page 1 */
3316 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
3317 sizeof(Mpi2SasIOUnit1PhyData_t));
3318 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
3319 if (!sas_iounit_pg1) {
3320 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3321 ioc->name, __FILE__, __LINE__, __func__);
3322 goto out;
3323 }
3324 if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
3325 sas_iounit_pg1, sz))) {
3326 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3327 ioc->name, __FILE__, __LINE__, __func__);
3328 goto out;
3329 }
3330 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3331 MPI2_IOCSTATUS_MASK;
3332 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3333 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3334 ioc->name, __FILE__, __LINE__, __func__);
3335 goto out;
3336 }
3337
3338 ioc->io_missing_delay =
3339 le16_to_cpu(sas_iounit_pg1->IODeviceMissingDelay);
3340 device_missing_delay =
3341 le16_to_cpu(sas_iounit_pg1->ReportDeviceMissingDelay);
3342 if (device_missing_delay & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
3343 ioc->device_missing_delay = (device_missing_delay &
3344 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
3345 else
3346 ioc->device_missing_delay = device_missing_delay &
3347 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
3348
3349 ioc->sas_hba.parent_dev = &ioc->shost->shost_gendev;
3350 ioc->sas_hba.phy = kcalloc(ioc->sas_hba.num_phys,
3351 sizeof(struct _sas_phy), GFP_KERNEL);
3352 if (!ioc->sas_hba.phy) {
3353 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3354 ioc->name, __FILE__, __LINE__, __func__);
3355 goto out;
3356 }
3357 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
3358 if ((mpt2sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
3359 i))) {
3360 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3361 ioc->name, __FILE__, __LINE__, __func__);
3362 goto out;
3363 }
3364 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3365 MPI2_IOCSTATUS_MASK;
3366 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3367 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3368 ioc->name, __FILE__, __LINE__, __func__);
3369 goto out;
3370 }
3371 ioc->sas_hba.phy[i].handle =
3372 le16_to_cpu(sas_iounit_pg0->PhyData[i].ControllerDevHandle);
3373 ioc->sas_hba.phy[i].phy_id = i;
3374 mpt2sas_transport_add_host_phy(ioc, &ioc->sas_hba.phy[i],
3375 phy_pg0, ioc->sas_hba.parent_dev);
3376 }
3377 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
3378 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.phy[0].handle))) {
3379 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3380 ioc->name, __FILE__, __LINE__, __func__);
3381 goto out;
3382 }
3383 ioc->sas_hba.handle = le16_to_cpu(sas_device_pg0.DevHandle);
3384 ioc->sas_hba.enclosure_handle =
3385 le16_to_cpu(sas_device_pg0.EnclosureHandle);
3386 ioc->sas_hba.sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
3387 printk(MPT2SAS_INFO_FMT "host_add: handle(0x%04x), "
3388 "sas_addr(0x%016llx), phys(%d)\n", ioc->name, ioc->sas_hba.handle,
3389 (unsigned long long) ioc->sas_hba.sas_address,
3390 ioc->sas_hba.num_phys) ;
3391
3392 if (ioc->sas_hba.enclosure_handle) {
3393 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
3394 &enclosure_pg0,
3395 MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
3396 ioc->sas_hba.enclosure_handle))) {
3397 ioc->sas_hba.enclosure_logical_id =
3398 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
3399 }
3400 }
3401
3402 out:
3403 kfree(sas_iounit_pg1);
3404 kfree(sas_iounit_pg0);
3405}
3406
3407/**
3408 * _scsih_expander_add - creating expander object
3409 * @ioc: per adapter object
3410 * @handle: expander handle
3411 *
3412 * Creating expander object, stored in ioc->sas_expander_list.
3413 *
3414 * Return 0 for success, else error.
3415 */
3416static int
3417_scsih_expander_add(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3418{
3419 struct _sas_node *sas_expander;
3420 Mpi2ConfigReply_t mpi_reply;
3421 Mpi2ExpanderPage0_t expander_pg0;
3422 Mpi2ExpanderPage1_t expander_pg1;
3423 Mpi2SasEnclosurePage0_t enclosure_pg0;
3424 u32 ioc_status;
3425 u16 parent_handle;
3426 __le64 sas_address;
3427 int i;
3428 unsigned long flags;
3429 struct _sas_port *mpt2sas_port;
3430 int rc = 0;
3431
3432 if (!handle)
3433 return -1;
3434
3435 if ((mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
3436 MPI2_SAS_EXPAND_PGAD_FORM_HNDL, handle))) {
3437 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3438 ioc->name, __FILE__, __LINE__, __func__);
3439 return -1;
3440 }
3441
3442 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3443 MPI2_IOCSTATUS_MASK;
3444 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3445 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3446 ioc->name, __FILE__, __LINE__, __func__);
3447 return -1;
3448 }
3449
3450 /* handle out of order topology events */
3451 parent_handle = le16_to_cpu(expander_pg0.ParentDevHandle);
3452 if (parent_handle >= ioc->sas_hba.num_phys) {
3453 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3454 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
3455 parent_handle);
3456 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3457 if (!sas_expander) {
3458 rc = _scsih_expander_add(ioc, parent_handle);
3459 if (rc != 0)
3460 return rc;
3461 }
3462 }
3463
3464 sas_address = le64_to_cpu(expander_pg0.SASAddress);
3465
3466 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3467 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
3468 sas_address);
3469 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3470
3471 if (sas_expander)
3472 return 0;
3473
3474 sas_expander = kzalloc(sizeof(struct _sas_node),
3475 GFP_KERNEL);
3476 if (!sas_expander) {
3477 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3478 ioc->name, __FILE__, __LINE__, __func__);
3479 return -1;
3480 }
3481
3482 sas_expander->handle = handle;
3483 sas_expander->num_phys = expander_pg0.NumPhys;
3484 sas_expander->parent_handle = parent_handle;
3485 sas_expander->enclosure_handle =
3486 le16_to_cpu(expander_pg0.EnclosureHandle);
3487 sas_expander->sas_address = sas_address;
3488
3489 printk(MPT2SAS_INFO_FMT "expander_add: handle(0x%04x),"
3490 " parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n", ioc->name,
3491 handle, sas_expander->parent_handle, (unsigned long long)
3492 sas_expander->sas_address, sas_expander->num_phys);
3493
3494 if (!sas_expander->num_phys)
3495 goto out_fail;
3496 sas_expander->phy = kcalloc(sas_expander->num_phys,
3497 sizeof(struct _sas_phy), GFP_KERNEL);
3498 if (!sas_expander->phy) {
3499 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3500 ioc->name, __FILE__, __LINE__, __func__);
3501 rc = -1;
3502 goto out_fail;
3503 }
3504
3505 INIT_LIST_HEAD(&sas_expander->sas_port_list);
3506 mpt2sas_port = mpt2sas_transport_port_add(ioc, handle,
3507 sas_expander->parent_handle);
3508 if (!mpt2sas_port) {
3509 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3510 ioc->name, __FILE__, __LINE__, __func__);
3511 rc = -1;
3512 goto out_fail;
3513 }
3514 sas_expander->parent_dev = &mpt2sas_port->rphy->dev;
3515
3516 for (i = 0 ; i < sas_expander->num_phys ; i++) {
3517 if ((mpt2sas_config_get_expander_pg1(ioc, &mpi_reply,
3518 &expander_pg1, i, handle))) {
3519 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3520 ioc->name, __FILE__, __LINE__, __func__);
3521 continue;
3522 }
3523 sas_expander->phy[i].handle = handle;
3524 sas_expander->phy[i].phy_id = i;
3525 mpt2sas_transport_add_expander_phy(ioc, &sas_expander->phy[i],
3526 expander_pg1, sas_expander->parent_dev);
3527 }
3528
3529 if (sas_expander->enclosure_handle) {
3530 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
3531 &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
3532 sas_expander->enclosure_handle))) {
3533 sas_expander->enclosure_logical_id =
3534 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
3535 }
3536 }
3537
3538 _scsih_expander_node_add(ioc, sas_expander);
3539 return 0;
3540
3541 out_fail:
3542
3543 if (sas_expander)
3544 kfree(sas_expander->phy);
3545 kfree(sas_expander);
3546 return rc;
3547}
3548
3549/**
3550 * _scsih_expander_remove - removing expander object
3551 * @ioc: per adapter object
3552 * @handle: expander handle
3553 *
3554 * Return nothing.
3555 */
3556static void
3557_scsih_expander_remove(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3558{
3559 struct _sas_node *sas_expander;
3560 unsigned long flags;
3561
3562 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3563 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc, handle);
3564 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3565 _scsih_expander_node_remove(ioc, sas_expander);
3566}
3567
3568/**
3569 * _scsih_add_device - creating sas device object
3570 * @ioc: per adapter object
3571 * @handle: sas device handle
3572 * @phy_num: phy number end device attached to
3573 * @is_pd: is this hidden raid component
3574 *
3575 * Creating end device object, stored in ioc->sas_device_list.
3576 *
3577 * Returns 0 for success, non-zero for failure.
3578 */
3579static int
3580_scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd)
3581{
3582 Mpi2ConfigReply_t mpi_reply;
3583 Mpi2SasDevicePage0_t sas_device_pg0;
3584 Mpi2SasEnclosurePage0_t enclosure_pg0;
3585 struct _sas_device *sas_device;
3586 u32 ioc_status;
3587 __le64 sas_address;
3588 u32 device_info;
3589 unsigned long flags;
3590
3591 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
3592 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
3593 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3594 ioc->name, __FILE__, __LINE__, __func__);
3595 return -1;
3596 }
3597
3598 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3599 MPI2_IOCSTATUS_MASK;
3600 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3601 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3602 ioc->name, __FILE__, __LINE__, __func__);
3603 return -1;
3604 }
3605
3606 /* check if device is present */
3607 if (!(le16_to_cpu(sas_device_pg0.Flags) &
3608 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
3609 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3610 ioc->name, __FILE__, __LINE__, __func__);
3611 printk(MPT2SAS_ERR_FMT "Flags = 0x%04x\n",
3612 ioc->name, le16_to_cpu(sas_device_pg0.Flags));
3613 return -1;
3614 }
3615
3616 /* check if there were any issus with discovery */
3617 if (sas_device_pg0.AccessStatus ==
3618 MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED) {
3619 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3620 ioc->name, __FILE__, __LINE__, __func__);
3621 printk(MPT2SAS_ERR_FMT "AccessStatus = 0x%02x\n",
3622 ioc->name, sas_device_pg0.AccessStatus);
3623 return -1;
3624 }
3625
3626 /* check if this is end device */
3627 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
3628 if (!(_scsih_is_end_device(device_info))) {
3629 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3630 ioc->name, __FILE__, __LINE__, __func__);
3631 return -1;
3632 }
3633
3634 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
3635
3636 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3637 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
3638 sas_address);
3639 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3640
3641 if (sas_device) {
3642 _scsih_ublock_io_device(ioc, handle);
3643 return 0;
3644 }
3645
3646 sas_device = kzalloc(sizeof(struct _sas_device),
3647 GFP_KERNEL);
3648 if (!sas_device) {
3649 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3650 ioc->name, __FILE__, __LINE__, __func__);
3651 return -1;
3652 }
3653
3654 sas_device->handle = handle;
3655 sas_device->parent_handle =
3656 le16_to_cpu(sas_device_pg0.ParentDevHandle);
3657 sas_device->enclosure_handle =
3658 le16_to_cpu(sas_device_pg0.EnclosureHandle);
3659 sas_device->slot =
3660 le16_to_cpu(sas_device_pg0.Slot);
3661 sas_device->device_info = device_info;
3662 sas_device->sas_address = sas_address;
3663 sas_device->hidden_raid_component = is_pd;
3664
3665 /* get enclosure_logical_id */
3666 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply, &enclosure_pg0,
3667 MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
3668 sas_device->enclosure_handle))) {
3669 sas_device->enclosure_logical_id =
3670 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
3671 }
3672
3673 /* get device name */
3674 sas_device->device_name = le64_to_cpu(sas_device_pg0.DeviceName);
3675
3676 if (ioc->wait_for_port_enable_to_complete)
3677 _scsih_sas_device_init_add(ioc, sas_device);
3678 else
3679 _scsih_sas_device_add(ioc, sas_device);
3680
3681 return 0;
3682}
3683
3684/**
3685 * _scsih_remove_device - removing sas device object
3686 * @ioc: per adapter object
3687 * @handle: sas device handle
3688 *
3689 * Return nothing.
3690 */
3691static void
3692_scsih_remove_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3693{
3694 struct MPT2SAS_TARGET *sas_target_priv_data;
3695 struct _sas_device *sas_device;
3696 unsigned long flags;
3697 Mpi2SasIoUnitControlReply_t mpi_reply;
3698 Mpi2SasIoUnitControlRequest_t mpi_request;
3699 u16 device_handle;
3700
3701 /* lookup sas_device */
3702 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3703 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
3704 if (!sas_device) {
3705 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3706 return;
3707 }
3708
3709 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter: handle"
3710 "(0x%04x)\n", ioc->name, __func__, handle));
3711
3712 if (sas_device->starget && sas_device->starget->hostdata) {
3713 sas_target_priv_data = sas_device->starget->hostdata;
3714 sas_target_priv_data->deleted = 1;
3715 }
3716 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3717
3718 if (ioc->remove_host)
3719 goto out;
3720
3721 /* Target Reset to flush out all the outstanding IO */
3722 device_handle = (sas_device->hidden_raid_component) ?
3723 sas_device->volume_handle : handle;
3724 if (device_handle) {
3725 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "issue target reset: "
3726 "handle(0x%04x)\n", ioc->name, device_handle));
3727 mutex_lock(&ioc->tm_cmds.mutex);
3728 mpt2sas_scsih_issue_tm(ioc, device_handle, 0,
3729 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 10);
3730 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
3731 mutex_unlock(&ioc->tm_cmds.mutex);
3732 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "issue target reset "
3733 "done: handle(0x%04x)\n", ioc->name, device_handle));
3734 }
3735
3736 /* SAS_IO_UNIT_CNTR - send REMOVE_DEVICE */
3737 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sas_iounit: handle"
3738 "(0x%04x)\n", ioc->name, handle));
3739 memset(&mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
3740 mpi_request.Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
3741 mpi_request.Operation = MPI2_SAS_OP_REMOVE_DEVICE;
3742 mpi_request.DevHandle = handle;
3743 mpi_request.VF_ID = 0;
3744 if ((mpt2sas_base_sas_iounit_control(ioc, &mpi_reply,
3745 &mpi_request)) != 0) {
3746 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3747 ioc->name, __FILE__, __LINE__, __func__);
3748 }
3749
3750 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sas_iounit: ioc_status"
3751 "(0x%04x), loginfo(0x%08x)\n", ioc->name,
3752 le16_to_cpu(mpi_reply.IOCStatus),
3753 le32_to_cpu(mpi_reply.IOCLogInfo)));
3754
3755 out:
3756 mpt2sas_transport_port_remove(ioc, sas_device->sas_address,
3757 sas_device->parent_handle);
3758
3759 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), sas_addr"
3760 "(0x%016llx)\n", ioc->name, sas_device->handle,
3761 (unsigned long long) sas_device->sas_address);
3762 _scsih_sas_device_remove(ioc, sas_device);
3763
3764 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit: handle"
3765 "(0x%04x)\n", ioc->name, __func__, handle));
3766}
3767
3768#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3769/**
3770 * _scsih_sas_topology_change_event_debug - debug for topology event
3771 * @ioc: per adapter object
3772 * @event_data: event data payload
3773 * Context: user.
3774 */
3775static void
3776_scsih_sas_topology_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
3777 Mpi2EventDataSasTopologyChangeList_t *event_data)
3778{
3779 int i;
3780 u16 handle;
3781 u16 reason_code;
3782 u8 phy_number;
3783 char *status_str = NULL;
3784 char link_rate[25];
3785
3786 switch (event_data->ExpStatus) {
3787 case MPI2_EVENT_SAS_TOPO_ES_ADDED:
3788 status_str = "add";
3789 break;
3790 case MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING:
3791 status_str = "remove";
3792 break;
3793 case MPI2_EVENT_SAS_TOPO_ES_RESPONDING:
3794 status_str = "responding";
3795 break;
3796 case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
3797 status_str = "remove delay";
3798 break;
3799 default:
3800 status_str = "unknown status";
3801 break;
3802 }
3803 printk(MPT2SAS_DEBUG_FMT "sas topology change: (%s)\n",
3804 ioc->name, status_str);
3805 printk(KERN_DEBUG "\thandle(0x%04x), enclosure_handle(0x%04x) "
3806 "start_phy(%02d), count(%d)\n",
3807 le16_to_cpu(event_data->ExpanderDevHandle),
3808 le16_to_cpu(event_data->EnclosureHandle),
3809 event_data->StartPhyNum, event_data->NumEntries);
3810 for (i = 0; i < event_data->NumEntries; i++) {
3811 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
3812 if (!handle)
3813 continue;
3814 phy_number = event_data->StartPhyNum + i;
3815 reason_code = event_data->PHY[i].PhyStatus &
3816 MPI2_EVENT_SAS_TOPO_RC_MASK;
3817 switch (reason_code) {
3818 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
3819 snprintf(link_rate, 25, ": add, link(0x%02x)",
3820 (event_data->PHY[i].LinkRate >> 4));
3821 status_str = link_rate;
3822 break;
3823 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
3824 status_str = ": remove";
3825 break;
3826 case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
3827 status_str = ": remove_delay";
3828 break;
3829 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
3830 snprintf(link_rate, 25, ": link(0x%02x)",
3831 (event_data->PHY[i].LinkRate >> 4));
3832 status_str = link_rate;
3833 break;
3834 case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
3835 status_str = ": responding";
3836 break;
3837 default:
3838 status_str = ": unknown";
3839 break;
3840 }
3841 printk(KERN_DEBUG "\tphy(%02d), attached_handle(0x%04x)%s\n",
3842 phy_number, handle, status_str);
3843 }
3844}
3845#endif
3846
3847/**
3848 * _scsih_sas_topology_change_event - handle topology changes
3849 * @ioc: per adapter object
3850 * @VF_ID:
3851 * @event_data: event data payload
3852 * fw_event:
3853 * Context: user.
3854 *
3855 */
3856static void
3857_scsih_sas_topology_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
3858 Mpi2EventDataSasTopologyChangeList_t *event_data,
3859 struct fw_event_work *fw_event)
3860{
3861 int i;
3862 u16 parent_handle, handle;
3863 u16 reason_code;
3864 u8 phy_number;
3865 struct _sas_node *sas_expander;
3866 unsigned long flags;
3867 u8 link_rate_;
3868
3869#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3870 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
3871 _scsih_sas_topology_change_event_debug(ioc, event_data);
3872#endif
3873
3874 if (!ioc->sas_hba.num_phys)
3875 _scsih_sas_host_add(ioc);
3876 else
3877 _scsih_sas_host_refresh(ioc, 0);
3878
3879 if (fw_event->ignore) {
3880 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "ignoring expander "
3881 "event\n", ioc->name));
3882 return;
3883 }
3884
3885 parent_handle = le16_to_cpu(event_data->ExpanderDevHandle);
3886
3887 /* handle expander add */
3888 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_ADDED)
3889 if (_scsih_expander_add(ioc, parent_handle) != 0)
3890 return;
3891
3892 /* handle siblings events */
3893 for (i = 0; i < event_data->NumEntries; i++) {
3894 if (fw_event->ignore) {
3895 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "ignoring "
3896 "expander event\n", ioc->name));
3897 return;
3898 }
3899 if (event_data->PHY[i].PhyStatus &
3900 MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT)
3901 continue;
3902 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
3903 if (!handle)
3904 continue;
3905 phy_number = event_data->StartPhyNum + i;
3906 reason_code = event_data->PHY[i].PhyStatus &
3907 MPI2_EVENT_SAS_TOPO_RC_MASK;
3908 link_rate_ = event_data->PHY[i].LinkRate >> 4;
3909 switch (reason_code) {
3910 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
3911 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
3912 if (!parent_handle) {
3913 if (phy_number < ioc->sas_hba.num_phys)
3914 _scsih_link_change(ioc,
3915 ioc->sas_hba.phy[phy_number].handle,
3916 handle, phy_number, link_rate_);
3917 } else {
3918 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3919 sas_expander =
3920 mpt2sas_scsih_expander_find_by_handle(ioc,
3921 parent_handle);
3922 spin_unlock_irqrestore(&ioc->sas_node_lock,
3923 flags);
3924 if (sas_expander) {
3925 if (phy_number < sas_expander->num_phys)
3926 _scsih_link_change(ioc,
3927 sas_expander->
3928 phy[phy_number].handle,
3929 handle, phy_number,
3930 link_rate_);
3931 }
3932 }
3933 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED) {
3934 if (link_rate_ >= MPI2_SAS_NEG_LINK_RATE_1_5)
3935 _scsih_ublock_io_device(ioc, handle);
3936 }
3937 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED) {
3938 if (link_rate_ < MPI2_SAS_NEG_LINK_RATE_1_5)
3939 break;
3940 _scsih_add_device(ioc, handle, phy_number, 0);
3941 }
3942 break;
3943 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
3944 _scsih_remove_device(ioc, handle);
3945 break;
3946 }
3947 }
3948
3949 /* handle expander removal */
3950 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
3951 _scsih_expander_remove(ioc, parent_handle);
3952
3953}
3954
3955#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3956/**
3957 * _scsih_sas_device_status_change_event_debug - debug for device event
3958 * @event_data: event data payload
3959 * Context: user.
3960 *
3961 * Return nothing.
3962 */
3963static void
3964_scsih_sas_device_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
3965 Mpi2EventDataSasDeviceStatusChange_t *event_data)
3966{
3967 char *reason_str = NULL;
3968
3969 switch (event_data->ReasonCode) {
3970 case MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA:
3971 reason_str = "smart data";
3972 break;
3973 case MPI2_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED:
3974 reason_str = "unsupported device discovered";
3975 break;
3976 case MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
3977 reason_str = "internal device reset";
3978 break;
3979 case MPI2_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL:
3980 reason_str = "internal task abort";
3981 break;
3982 case MPI2_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL:
3983 reason_str = "internal task abort set";
3984 break;
3985 case MPI2_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL:
3986 reason_str = "internal clear task set";
3987 break;
3988 case MPI2_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL:
3989 reason_str = "internal query task";
3990 break;
3991 case MPI2_EVENT_SAS_DEV_STAT_RC_SATA_INIT_FAILURE:
3992 reason_str = "sata init failure";
3993 break;
3994 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET:
3995 reason_str = "internal device reset complete";
3996 break;
3997 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_TASK_ABORT_INTERNAL:
3998 reason_str = "internal task abort complete";
3999 break;
4000 case MPI2_EVENT_SAS_DEV_STAT_RC_ASYNC_NOTIFICATION:
4001 reason_str = "internal async notification";
4002 break;
4003 default:
4004 reason_str = "unknown reason";
4005 break;
4006 }
4007 printk(MPT2SAS_DEBUG_FMT "device status change: (%s)\n"
4008 "\thandle(0x%04x), sas address(0x%016llx)", ioc->name,
4009 reason_str, le16_to_cpu(event_data->DevHandle),
4010 (unsigned long long)le64_to_cpu(event_data->SASAddress));
4011 if (event_data->ReasonCode == MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA)
4012 printk(MPT2SAS_DEBUG_FMT ", ASC(0x%x), ASCQ(0x%x)\n", ioc->name,
4013 event_data->ASC, event_data->ASCQ);
4014 printk(KERN_INFO "\n");
4015}
4016#endif
4017
4018/**
4019 * _scsih_sas_device_status_change_event - handle device status change
4020 * @ioc: per adapter object
4021 * @VF_ID:
4022 * @event_data: event data payload
4023 * Context: user.
4024 *
4025 * Return nothing.
4026 */
4027static void
4028_scsih_sas_device_status_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4029 Mpi2EventDataSasDeviceStatusChange_t *event_data)
4030{
4031#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4032 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4033 _scsih_sas_device_status_change_event_debug(ioc, event_data);
4034#endif
4035}
4036
4037#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4038/**
4039 * _scsih_sas_enclosure_dev_status_change_event_debug - debug for enclosure event
4040 * @ioc: per adapter object
4041 * @event_data: event data payload
4042 * Context: user.
4043 *
4044 * Return nothing.
4045 */
4046static void
4047_scsih_sas_enclosure_dev_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
4048 Mpi2EventDataSasEnclDevStatusChange_t *event_data)
4049{
4050 char *reason_str = NULL;
4051
4052 switch (event_data->ReasonCode) {
4053 case MPI2_EVENT_SAS_ENCL_RC_ADDED:
4054 reason_str = "enclosure add";
4055 break;
4056 case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING:
4057 reason_str = "enclosure remove";
4058 break;
4059 default:
4060 reason_str = "unknown reason";
4061 break;
4062 }
4063
4064 printk(MPT2SAS_DEBUG_FMT "enclosure status change: (%s)\n"
4065 "\thandle(0x%04x), enclosure logical id(0x%016llx)"
4066 " number slots(%d)\n", ioc->name, reason_str,
4067 le16_to_cpu(event_data->EnclosureHandle),
4068 (unsigned long long)le64_to_cpu(event_data->EnclosureLogicalID),
4069 le16_to_cpu(event_data->StartSlot));
4070}
4071#endif
4072
4073/**
4074 * _scsih_sas_enclosure_dev_status_change_event - handle enclosure events
4075 * @ioc: per adapter object
4076 * @VF_ID:
4077 * @event_data: event data payload
4078 * Context: user.
4079 *
4080 * Return nothing.
4081 */
4082static void
4083_scsih_sas_enclosure_dev_status_change_event(struct MPT2SAS_ADAPTER *ioc,
4084 u8 VF_ID, Mpi2EventDataSasEnclDevStatusChange_t *event_data)
4085{
4086#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4087 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4088 _scsih_sas_enclosure_dev_status_change_event_debug(ioc,
4089 event_data);
4090#endif
4091}
4092
4093/**
4094 * _scsih_sas_broadcast_primative_event - handle broadcast events
4095 * @ioc: per adapter object
4096 * @event_data: event data payload
4097 * Context: user.
4098 *
4099 * Return nothing.
4100 */
4101static void
4102_scsih_sas_broadcast_primative_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4103 Mpi2EventDataSasBroadcastPrimitive_t *event_data)
4104{
4105 struct scsi_cmnd *scmd;
4106 u16 smid, handle;
4107 u32 lun;
4108 struct MPT2SAS_DEVICE *sas_device_priv_data;
4109 u32 termination_count;
4110 u32 query_count;
4111 Mpi2SCSITaskManagementReply_t *mpi_reply;
4112
4113 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "broadcast primative: "
4114 "phy number(%d), width(%d)\n", ioc->name, event_data->PhyNum,
4115 event_data->PortWidth));
4116
4117 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name,
4118 __func__));
4119
4120 mutex_lock(&ioc->tm_cmds.mutex);
4121 termination_count = 0;
4122 query_count = 0;
4123 mpi_reply = ioc->tm_cmds.reply;
4124 for (smid = 1; smid <= ioc->request_depth; smid++) {
4125 scmd = _scsih_scsi_lookup_get(ioc, smid);
4126 if (!scmd)
4127 continue;
4128 sas_device_priv_data = scmd->device->hostdata;
4129 if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
4130 continue;
4131 /* skip hidden raid components */
4132 if (sas_device_priv_data->sas_target->flags &
4133 MPT_TARGET_FLAGS_RAID_COMPONENT)
4134 continue;
4135 /* skip volumes */
4136 if (sas_device_priv_data->sas_target->flags &
4137 MPT_TARGET_FLAGS_VOLUME)
4138 continue;
4139
4140 handle = sas_device_priv_data->sas_target->handle;
4141 lun = sas_device_priv_data->lun;
4142 query_count++;
4143
4144 mpt2sas_scsih_issue_tm(ioc, handle, lun,
4145 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30);
8901cbb4 4146 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
635374e7
EM		 4147
4148 if ((mpi_reply->IOCStatus == MPI2_IOCSTATUS_SUCCESS) &&
4149 (mpi_reply->ResponseCode ==
4150 MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
4151 mpi_reply->ResponseCode ==
4152 MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC))
4153 continue;
4154
4155 mpt2sas_scsih_issue_tm(ioc, handle, lun,
8901cbb4
EM		 4156 MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET, 0, 30);
4157 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
635374e7
EM		 4158 termination_count += le32_to_cpu(mpi_reply->TerminationCount);
4159 }
635374e7
EM		 4160 ioc->broadcast_aen_busy = 0;
4161 mutex_unlock(&ioc->tm_cmds.mutex);
4162
4163 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT
4164 "%s - exit, query_count = %d termination_count = %d\n",
4165 ioc->name, __func__, query_count, termination_count));
4166}
4167
4168/**
4169 * _scsih_sas_discovery_event - handle discovery events
4170 * @ioc: per adapter object
4171 * @event_data: event data payload
4172 * Context: user.
4173 *
4174 * Return nothing.
4175 */
4176static void
4177_scsih_sas_discovery_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4178 Mpi2EventDataSasDiscovery_t *event_data)
4179{
4180#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4181 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) {
4182 printk(MPT2SAS_DEBUG_FMT "discovery event: (%s)", ioc->name,
4183 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
4184 "start" : "stop");
4185 if (event_data->DiscoveryStatus)
4186 printk(MPT2SAS_DEBUG_FMT ", discovery_status(0x%08x)",
4187 ioc->name, le32_to_cpu(event_data->DiscoveryStatus));
4188 printk("\n");
4189 }
4190#endif
4191
4192 if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED &&
4193 !ioc->sas_hba.num_phys)
4194 _scsih_sas_host_add(ioc);
4195}
4196
4197/**
4198 * _scsih_reprobe_lun - reprobing lun
4199 * @sdev: scsi device struct
4200 * @no_uld_attach: sdev->no_uld_attach flag setting
4201 *
4202 **/
4203static void
4204_scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach)
4205{
4206 int rc;
4207
4208 sdev->no_uld_attach = no_uld_attach ? 1 : 0;
4209 sdev_printk(KERN_INFO, sdev, "%s raid component\n",
4210 sdev->no_uld_attach ? "hidding" : "exposing");
4211 rc = scsi_device_reprobe(sdev);
4212}
4213
4214/**
4215 * _scsih_reprobe_target - reprobing target
4216 * @starget: scsi target struct
4217 * @no_uld_attach: sdev->no_uld_attach flag setting
4218 *
4219 * Note: no_uld_attach flag determines whether the disk device is attached
4220 * to block layer. A value of `1` means to not attach.
4221 **/
4222static void
4223_scsih_reprobe_target(struct scsi_target *starget, int no_uld_attach)
4224{
4225 struct MPT2SAS_TARGET *sas_target_priv_data = starget->hostdata;
4226
4227 if (no_uld_attach)
4228 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_RAID_COMPONENT;
4229 else
4230 sas_target_priv_data->flags &= ~MPT_TARGET_FLAGS_RAID_COMPONENT;
4231
4232 starget_for_each_device(starget, no_uld_attach ? (void *)1 : NULL,
4233 _scsih_reprobe_lun);
4234}
4235/**
4236 * _scsih_sas_volume_add - add new volume
4237 * @ioc: per adapter object
4238 * @element: IR config element data
4239 * Context: user.
4240 *
4241 * Return nothing.
4242 */
4243static void
4244_scsih_sas_volume_add(struct MPT2SAS_ADAPTER *ioc,
4245 Mpi2EventIrConfigElement_t *element)
4246{
4247 struct _raid_device *raid_device;
4248 unsigned long flags;
4249 u64 wwid;
4250 u16 handle = le16_to_cpu(element->VolDevHandle);
4251 int rc;
4252
4253#if 0 /* RAID_HACKS */
4254 if (le32_to_cpu(event_data->Flags) &
4255 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
4256 return;
4257#endif
4258
4259 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
4260 if (!wwid) {
4261 printk(MPT2SAS_ERR_FMT
4262 "failure at %s:%d/%s()!\n", ioc->name,
4263 __FILE__, __LINE__, __func__);
4264 return;
4265 }
4266
4267 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4268 raid_device = _scsih_raid_device_find_by_wwid(ioc, wwid);
4269 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4270
4271 if (raid_device)
4272 return;
4273
4274 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
4275 if (!raid_device) {
4276 printk(MPT2SAS_ERR_FMT
4277 "failure at %s:%d/%s()!\n", ioc->name,
4278 __FILE__, __LINE__, __func__);
4279 return;
4280 }
4281
4282 raid_device->id = ioc->sas_id++;
4283 raid_device->channel = RAID_CHANNEL;
4284 raid_device->handle = handle;
4285 raid_device->wwid = wwid;
4286 _scsih_raid_device_add(ioc, raid_device);
4287 if (!ioc->wait_for_port_enable_to_complete) {
4288 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
4289 raid_device->id, 0);
4290 if (rc)
4291 _scsih_raid_device_remove(ioc, raid_device);
4292 } else
4293 _scsih_determine_boot_device(ioc, raid_device, 1);
4294}
4295
4296/**
4297 * _scsih_sas_volume_delete - delete volume
4298 * @ioc: per adapter object
4299 * @element: IR config element data
4300 * Context: user.
4301 *
4302 * Return nothing.
4303 */
4304static void
4305_scsih_sas_volume_delete(struct MPT2SAS_ADAPTER *ioc,
4306 Mpi2EventIrConfigElement_t *element)
4307{
4308 struct _raid_device *raid_device;
4309 u16 handle = le16_to_cpu(element->VolDevHandle);
4310 unsigned long flags;
4311 struct MPT2SAS_TARGET *sas_target_priv_data;
4312
4313#if 0 /* RAID_HACKS */
4314 if (le32_to_cpu(event_data->Flags) &
4315 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
4316 return;
4317#endif
4318
4319 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4320 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
4321 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4322 if (!raid_device)
4323 return;
4324 if (raid_device->starget) {
4325 sas_target_priv_data = raid_device->starget->hostdata;
4326 sas_target_priv_data->deleted = 1;
4327 scsi_remove_target(&raid_device->starget->dev);
4328 }
4329 _scsih_raid_device_remove(ioc, raid_device);
4330}
4331
4332/**
4333 * _scsih_sas_pd_expose - expose pd component to /dev/sdX
4334 * @ioc: per adapter object
4335 * @element: IR config element data
4336 * Context: user.
4337 *
4338 * Return nothing.
4339 */
4340static void
4341_scsih_sas_pd_expose(struct MPT2SAS_ADAPTER *ioc,
4342 Mpi2EventIrConfigElement_t *element)
4343{
4344 struct _sas_device *sas_device;
4345 unsigned long flags;
4346 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4347
4348 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4349 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4350 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4351 if (!sas_device)
4352 return;
4353
4354 /* exposing raid component */
4355 sas_device->volume_handle = 0;
4356 sas_device->volume_wwid = 0;
4357 sas_device->hidden_raid_component = 0;
4358 _scsih_reprobe_target(sas_device->starget, 0);
4359}
4360
4361/**
4362 * _scsih_sas_pd_hide - hide pd component from /dev/sdX
4363 * @ioc: per adapter object
4364 * @element: IR config element data
4365 * Context: user.
4366 *
4367 * Return nothing.
4368 */
4369static void
4370_scsih_sas_pd_hide(struct MPT2SAS_ADAPTER *ioc,
4371 Mpi2EventIrConfigElement_t *element)
4372{
4373 struct _sas_device *sas_device;
4374 unsigned long flags;
4375 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4376
4377 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4378 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4379 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4380 if (!sas_device)
4381 return;
4382
4383 /* hiding raid component */
4384 mpt2sas_config_get_volume_handle(ioc, handle,
4385 &sas_device->volume_handle);
4386 mpt2sas_config_get_volume_wwid(ioc, sas_device->volume_handle,
4387 &sas_device->volume_wwid);
4388 sas_device->hidden_raid_component = 1;
4389 _scsih_reprobe_target(sas_device->starget, 1);
4390}
4391
4392/**
4393 * _scsih_sas_pd_delete - delete pd component
4394 * @ioc: per adapter object
4395 * @element: IR config element data
4396 * Context: user.
4397 *
4398 * Return nothing.
4399 */
4400static void
4401_scsih_sas_pd_delete(struct MPT2SAS_ADAPTER *ioc,
4402 Mpi2EventIrConfigElement_t *element)
4403{
4404 struct _sas_device *sas_device;
4405 unsigned long flags;
4406 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4407
4408 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4409 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4410 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4411 if (!sas_device)
4412 return;
4413 _scsih_remove_device(ioc, handle);
4414}
4415
4416/**
4417 * _scsih_sas_pd_add - remove pd component
4418 * @ioc: per adapter object
4419 * @element: IR config element data
4420 * Context: user.
4421 *
4422 * Return nothing.
4423 */
4424static void
4425_scsih_sas_pd_add(struct MPT2SAS_ADAPTER *ioc,
4426 Mpi2EventIrConfigElement_t *element)
4427{
4428 struct _sas_device *sas_device;
4429 unsigned long flags;
4430 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4431
4432 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4433 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4434 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4435 if (sas_device)
4436 sas_device->hidden_raid_component = 1;
4437 else
4438 _scsih_add_device(ioc, handle, 0, 1);
4439}
4440
4441#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4442/**
4443 * _scsih_sas_ir_config_change_event_debug - debug for IR Config Change events
4444 * @ioc: per adapter object
4445 * @event_data: event data payload
4446 * Context: user.
4447 *
4448 * Return nothing.
4449 */
4450static void
4451_scsih_sas_ir_config_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
4452 Mpi2EventDataIrConfigChangeList_t *event_data)
4453{
4454 Mpi2EventIrConfigElement_t *element;
4455 u8 element_type;
4456 int i;
4457 char *reason_str = NULL, *element_str = NULL;
4458
4459 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
4460
4461 printk(MPT2SAS_DEBUG_FMT "raid config change: (%s), elements(%d)\n",
4462 ioc->name, (le32_to_cpu(event_data->Flags) &
4463 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ?
4464 "foreign" : "native", event_data->NumElements);
4465 for (i = 0; i < event_data->NumElements; i++, element++) {
4466 switch (element->ReasonCode) {
4467 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
4468 reason_str = "add";
4469 break;
4470 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
4471 reason_str = "remove";
4472 break;
4473 case MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE:
4474 reason_str = "no change";
4475 break;
4476 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
4477 reason_str = "hide";
4478 break;
4479 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
4480 reason_str = "unhide";
4481 break;
4482 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
4483 reason_str = "volume_created";
4484 break;
4485 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
4486 reason_str = "volume_deleted";
4487 break;
4488 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
4489 reason_str = "pd_created";
4490 break;
4491 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
4492 reason_str = "pd_deleted";
4493 break;
4494 default:
4495 reason_str = "unknown reason";
4496 break;
4497 }
4498 element_type = le16_to_cpu(element->ElementFlags) &
4499 MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
4500 switch (element_type) {
4501 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT:
4502 element_str = "volume";
4503 break;
4504 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT:
4505 element_str = "phys disk";
4506 break;
4507 case MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT:
4508 element_str = "hot spare";
4509 break;
4510 default:
4511 element_str = "unknown element";
4512 break;
4513 }
4514 printk(KERN_DEBUG "\t(%s:%s), vol handle(0x%04x), "
4515 "pd handle(0x%04x), pd num(0x%02x)\n", element_str,
4516 reason_str, le16_to_cpu(element->VolDevHandle),
4517 le16_to_cpu(element->PhysDiskDevHandle),
4518 element->PhysDiskNum);
4519 }
4520}
4521#endif
4522
4523/**
4524 * _scsih_sas_ir_config_change_event - handle ir configuration change events
4525 * @ioc: per adapter object
4526 * @VF_ID:
4527 * @event_data: event data payload
4528 * Context: user.
4529 *
4530 * Return nothing.
4531 */
4532static void
4533_scsih_sas_ir_config_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4534 Mpi2EventDataIrConfigChangeList_t *event_data)
4535{
4536 Mpi2EventIrConfigElement_t *element;
4537 int i;
4538
4539#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4540 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4541 _scsih_sas_ir_config_change_event_debug(ioc, event_data);
4542
4543#endif
4544
4545 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
4546 for (i = 0; i < event_data->NumElements; i++, element++) {
4547
4548 switch (element->ReasonCode) {
4549 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
4550 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
4551 _scsih_sas_volume_add(ioc, element);
4552 break;
4553 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
4554 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
4555 _scsih_sas_volume_delete(ioc, element);
4556 break;
4557 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
4558 _scsih_sas_pd_hide(ioc, element);
4559 break;
4560 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
4561 _scsih_sas_pd_expose(ioc, element);
4562 break;
4563 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
4564 _scsih_sas_pd_add(ioc, element);
4565 break;
4566 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
4567 _scsih_sas_pd_delete(ioc, element);
4568 break;
4569 }
4570 }
4571}
4572
4573/**
4574 * _scsih_sas_ir_volume_event - IR volume event
4575 * @ioc: per adapter object
4576 * @event_data: event data payload
4577 * Context: user.
4578 *
4579 * Return nothing.
4580 */
4581static void
4582_scsih_sas_ir_volume_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4583 Mpi2EventDataIrVolume_t *event_data)
4584{
4585 u64 wwid;
4586 unsigned long flags;
4587 struct _raid_device *raid_device;
4588 u16 handle;
4589 u32 state;
4590 int rc;
4591 struct MPT2SAS_TARGET *sas_target_priv_data;
4592
4593 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
4594 return;
4595
4596 handle = le16_to_cpu(event_data->VolDevHandle);
4597 state = le32_to_cpu(event_data->NewValue);
4598 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle(0x%04x), "
4599 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
4600 le32_to_cpu(event_data->PreviousValue), state));
4601
4602 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4603 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
4604 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4605
4606 switch (state) {
4607 case MPI2_RAID_VOL_STATE_MISSING:
4608 case MPI2_RAID_VOL_STATE_FAILED:
4609 if (!raid_device)
4610 break;
4611 if (raid_device->starget) {
4612 sas_target_priv_data = raid_device->starget->hostdata;
4613 sas_target_priv_data->deleted = 1;
4614 scsi_remove_target(&raid_device->starget->dev);
4615 }
4616 _scsih_raid_device_remove(ioc, raid_device);
4617 break;
4618
4619 case MPI2_RAID_VOL_STATE_ONLINE:
4620 case MPI2_RAID_VOL_STATE_DEGRADED:
4621 case MPI2_RAID_VOL_STATE_OPTIMAL:
4622 if (raid_device)
4623 break;
4624
4625 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
4626 if (!wwid) {
4627 printk(MPT2SAS_ERR_FMT
4628 "failure at %s:%d/%s()!\n", ioc->name,
4629 __FILE__, __LINE__, __func__);
4630 break;
4631 }
4632
4633 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
4634 if (!raid_device) {
4635 printk(MPT2SAS_ERR_FMT
4636 "failure at %s:%d/%s()!\n", ioc->name,
4637 __FILE__, __LINE__, __func__);
4638 break;
4639 }
4640
4641 raid_device->id = ioc->sas_id++;
4642 raid_device->channel = RAID_CHANNEL;
4643 raid_device->handle = handle;
4644 raid_device->wwid = wwid;
4645 _scsih_raid_device_add(ioc, raid_device);
4646 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
4647 raid_device->id, 0);
4648 if (rc)
4649 _scsih_raid_device_remove(ioc, raid_device);
4650 break;
4651
4652 case MPI2_RAID_VOL_STATE_INITIALIZING:
4653 default:
4654 break;
4655 }
4656}
4657
4658/**
4659 * _scsih_sas_ir_physical_disk_event - PD event
4660 * @ioc: per adapter object
4661 * @event_data: event data payload
4662 * Context: user.
4663 *
4664 * Return nothing.
4665 */
4666static void
4667_scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4668 Mpi2EventDataIrPhysicalDisk_t *event_data)
4669{
4670 u16 handle;
4671 u32 state;
4672 struct _sas_device *sas_device;
4673 unsigned long flags;
4674
4675 if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED)
4676 return;
4677
4678 handle = le16_to_cpu(event_data->PhysDiskDevHandle);
4679 state = le32_to_cpu(event_data->NewValue);
4680
4681 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle(0x%04x), "
4682 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
4683 le32_to_cpu(event_data->PreviousValue), state));
4684
4685 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4686 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4687 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4688
4689 switch (state) {
4690#if 0
4691 case MPI2_RAID_PD_STATE_OFFLINE:
4692 if (sas_device)
4693 _scsih_remove_device(ioc, handle);
4694 break;
4695#endif
4696 case MPI2_RAID_PD_STATE_ONLINE:
4697 case MPI2_RAID_PD_STATE_DEGRADED:
4698 case MPI2_RAID_PD_STATE_REBUILDING:
4699 case MPI2_RAID_PD_STATE_OPTIMAL:
4700 if (sas_device)
4701 sas_device->hidden_raid_component = 1;
4702 else
4703 _scsih_add_device(ioc, handle, 0, 1);
4704 break;
4705
4706 case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
4707 case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
4708 case MPI2_RAID_PD_STATE_HOT_SPARE:
4709 default:
4710 break;
4711 }
4712}
4713
4714#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4715/**
4716 * _scsih_sas_ir_operation_status_event_debug - debug for IR op event
4717 * @ioc: per adapter object
4718 * @event_data: event data payload
4719 * Context: user.
4720 *
4721 * Return nothing.
4722 */
4723static void
4724_scsih_sas_ir_operation_status_event_debug(struct MPT2SAS_ADAPTER *ioc,
4725 Mpi2EventDataIrOperationStatus_t *event_data)
4726{
4727 char *reason_str = NULL;
4728
4729 switch (event_data->RAIDOperation) {
4730 case MPI2_EVENT_IR_RAIDOP_RESYNC:
4731 reason_str = "resync";
4732 break;
4733 case MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION:
4734 reason_str = "online capacity expansion";
4735 break;
4736 case MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK:
4737 reason_str = "consistency check";
4738 break;
4739 default:
4740 reason_str = "unknown reason";
4741 break;
4742 }
4743
4744 printk(MPT2SAS_INFO_FMT "raid operational status: (%s)"
4745 "\thandle(0x%04x), percent complete(%d)\n",
4746 ioc->name, reason_str,
4747 le16_to_cpu(event_data->VolDevHandle),
4748 event_data->PercentComplete);
4749}
4750#endif
4751
4752/**
4753 * _scsih_sas_ir_operation_status_event - handle RAID operation events
4754 * @ioc: per adapter object
4755 * @VF_ID:
4756 * @event_data: event data payload
4757 * Context: user.
4758 *
4759 * Return nothing.
4760 */
4761static void
4762_scsih_sas_ir_operation_status_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4763 Mpi2EventDataIrOperationStatus_t *event_data)
4764{
4765#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4766 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4767 _scsih_sas_ir_operation_status_event_debug(ioc, event_data);
4768#endif
4769}
4770
4771/**
4772 * _scsih_task_set_full - handle task set full
4773 * @ioc: per adapter object
4774 * @event_data: event data payload
4775 * Context: user.
4776 *
4777 * Throttle back qdepth.
4778 */
4779static void
4780_scsih_task_set_full(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4781 Mpi2EventDataTaskSetFull_t *event_data)
4782{
4783 unsigned long flags;
4784 struct _sas_device *sas_device;
4785 static struct _raid_device *raid_device;
4786 struct scsi_device *sdev;
4787 int depth;
4788 u16 current_depth;
4789 u16 handle;
4790 int id, channel;
4791 u64 sas_address;
4792
4793 current_depth = le16_to_cpu(event_data->CurrentDepth);
4794 handle = le16_to_cpu(event_data->DevHandle);
4795 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4796 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4797 if (!sas_device) {
4798 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4799 return;
4800 }
4801 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4802 id = sas_device->id;
4803 channel = sas_device->channel;
4804 sas_address = sas_device->sas_address;
4805
4806 /* if hidden raid component, then change to volume characteristics */
4807 if (sas_device->hidden_raid_component && sas_device->volume_handle) {
4808 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4809 raid_device = _scsih_raid_device_find_by_handle(
4810 ioc, sas_device->volume_handle);
4811 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4812 if (raid_device) {
4813 id = raid_device->id;
4814 channel = raid_device->channel;
4815 handle = raid_device->handle;
4816 sas_address = raid_device->wwid;
4817 }
4818 }
4819
4820 if (ioc->logging_level & MPT_DEBUG_TASK_SET_FULL)
4821 starget_printk(KERN_DEBUG, sas_device->starget, "task set "
4822 "full: handle(0x%04x), sas_addr(0x%016llx), depth(%d)\n",
4823 handle, (unsigned long long)sas_address, current_depth);
4824
4825 shost_for_each_device(sdev, ioc->shost) {
4826 if (sdev->id == id && sdev->channel == channel) {
4827 if (current_depth > sdev->queue_depth) {
4828 if (ioc->logging_level &
4829 MPT_DEBUG_TASK_SET_FULL)
4830 sdev_printk(KERN_INFO, sdev, "strange "
4831 "observation, the queue depth is"
4832 " (%d) meanwhile fw queue depth "
4833 "is (%d)\n", sdev->queue_depth,
4834 current_depth);
4835 continue;
4836 }
4837 depth = scsi_track_queue_full(sdev,
4838 current_depth - 1);
4839 if (depth > 0)
4840 sdev_printk(KERN_INFO, sdev, "Queue depth "
4841 "reduced to (%d)\n", depth);
4842 else if (depth < 0)
4843 sdev_printk(KERN_INFO, sdev, "Tagged Command "
4844 "Queueing is being disabled\n");
4845 else if (depth == 0)
4846 if (ioc->logging_level &
4847 MPT_DEBUG_TASK_SET_FULL)
4848 sdev_printk(KERN_INFO, sdev,
4849 "Queue depth not changed yet\n");
4850 }
4851 }
4852}
4853
4854/**
4855 * _scsih_mark_responding_sas_device - mark a sas_devices as responding
4856 * @ioc: per adapter object
4857 * @sas_address: sas address
4858 * @slot: enclosure slot id
4859 * @handle: device handle
4860 *
4861 * After host reset, find out whether devices are still responding.
4862 * Used in _scsi_remove_unresponsive_sas_devices.
4863 *
4864 * Return nothing.
4865 */
4866static void
4867_scsih_mark_responding_sas_device(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
4868 u16 slot, u16 handle)
4869{
4870 struct MPT2SAS_TARGET *sas_target_priv_data;
4871 struct scsi_target *starget;
4872 struct _sas_device *sas_device;
4873 unsigned long flags;
4874
4875 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4876 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
4877 if (sas_device->sas_address == sas_address &&
4878 sas_device->slot == slot && sas_device->starget) {
4879 sas_device->responding = 1;
4880 starget_printk(KERN_INFO, sas_device->starget,
4881 "handle(0x%04x), sas_addr(0x%016llx), enclosure "
4882 "logical id(0x%016llx), slot(%d)\n", handle,
4883 (unsigned long long)sas_device->sas_address,
4884 (unsigned long long)
4885 sas_device->enclosure_logical_id,
4886 sas_device->slot);
4887 if (sas_device->handle == handle)
4888 goto out;
4889 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
4890 sas_device->handle);
4891 sas_device->handle = handle;
4892 starget = sas_device->starget;
4893 sas_target_priv_data = starget->hostdata;
4894 sas_target_priv_data->handle = handle;
4895 goto out;
4896 }
4897 }
4898 out:
4899 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4900}
4901
4902/**
4903 * _scsih_search_responding_sas_devices -
4904 * @ioc: per adapter object
4905 *
4906 * After host reset, find out whether devices are still responding.
4907 * If not remove.
4908 *
4909 * Return nothing.
4910 */
4911static void
4912_scsih_search_responding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
4913{
4914 Mpi2SasDevicePage0_t sas_device_pg0;
4915 Mpi2ConfigReply_t mpi_reply;
4916 u16 ioc_status;
4917 __le64 sas_address;
4918 u16 handle;
4919 u32 device_info;
4920 u16 slot;
4921
4922 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
4923
4924 if (list_empty(&ioc->sas_device_list))
4925 return;
4926
4927 handle = 0xFFFF;
4928 while (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
4929 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
4930 handle))) {
4931 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4932 MPI2_IOCSTATUS_MASK;
4933 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
4934 break;
4935 handle = le16_to_cpu(sas_device_pg0.DevHandle);
4936 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
4937 if (!(_scsih_is_end_device(device_info)))
4938 continue;
4939 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4940 slot = le16_to_cpu(sas_device_pg0.Slot);
4941 _scsih_mark_responding_sas_device(ioc, sas_address, slot,
4942 handle);
4943 }
4944}
4945
4946/**
4947 * _scsih_mark_responding_raid_device - mark a raid_device as responding
4948 * @ioc: per adapter object
4949 * @wwid: world wide identifier for raid volume
4950 * @handle: device handle
4951 *
4952 * After host reset, find out whether devices are still responding.
4953 * Used in _scsi_remove_unresponsive_raid_devices.
4954 *
4955 * Return nothing.
4956 */
4957static void
4958_scsih_mark_responding_raid_device(struct MPT2SAS_ADAPTER *ioc, u64 wwid,
4959 u16 handle)
4960{
4961 struct MPT2SAS_TARGET *sas_target_priv_data;
4962 struct scsi_target *starget;
4963 struct _raid_device *raid_device;
4964 unsigned long flags;
4965
4966 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4967 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
4968 if (raid_device->wwid == wwid && raid_device->starget) {
4969 raid_device->responding = 1;
4970 starget_printk(KERN_INFO, raid_device->starget,
4971 "handle(0x%04x), wwid(0x%016llx)\n", handle,
4972 (unsigned long long)raid_device->wwid);
4973 if (raid_device->handle == handle)
4974 goto out;
4975 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
4976 raid_device->handle);
4977 raid_device->handle = handle;
4978 starget = raid_device->starget;
4979 sas_target_priv_data = starget->hostdata;
4980 sas_target_priv_data->handle = handle;
4981 goto out;
4982 }
4983 }
4984 out:
4985 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4986}
4987
4988/**
4989 * _scsih_search_responding_raid_devices -
4990 * @ioc: per adapter object
4991 *
4992 * After host reset, find out whether devices are still responding.
4993 * If not remove.
4994 *
4995 * Return nothing.
4996 */
4997static void
4998_scsih_search_responding_raid_devices(struct MPT2SAS_ADAPTER *ioc)
4999{
5000 Mpi2RaidVolPage1_t volume_pg1;
5001 Mpi2ConfigReply_t mpi_reply;
5002 u16 ioc_status;
5003 u16 handle;
5004
5005 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
5006
5007 if (list_empty(&ioc->raid_device_list))
5008 return;
5009
5010 handle = 0xFFFF;
5011 while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
5012 &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
5013 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5014 MPI2_IOCSTATUS_MASK;
5015 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
5016 break;
5017 handle = le16_to_cpu(volume_pg1.DevHandle);
5018 _scsih_mark_responding_raid_device(ioc,
5019 le64_to_cpu(volume_pg1.WWID), handle);
5020 }
5021}
5022
5023/**
5024 * _scsih_mark_responding_expander - mark a expander as responding
5025 * @ioc: per adapter object
5026 * @sas_address: sas address
5027 * @handle:
5028 *
5029 * After host reset, find out whether devices are still responding.
5030 * Used in _scsi_remove_unresponsive_expanders.
5031 *
5032 * Return nothing.
5033 */
5034static void
5035_scsih_mark_responding_expander(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
5036 u16 handle)
5037{
5038 struct _sas_node *sas_expander;
5039 unsigned long flags;
5040
5041 spin_lock_irqsave(&ioc->sas_node_lock, flags);
5042 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
5043 if (sas_expander->sas_address == sas_address) {
5044 sas_expander->responding = 1;
5045 if (sas_expander->handle != handle) {
5046 printk(KERN_INFO "old handle(0x%04x)\n",
5047 sas_expander->handle);
5048 sas_expander->handle = handle;
5049 }
5050 goto out;
5051 }
5052 }
5053 out:
5054 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
5055}
5056
5057/**
5058 * _scsih_search_responding_expanders -
5059 * @ioc: per adapter object
5060 *
5061 * After host reset, find out whether devices are still responding.
5062 * If not remove.
5063 *
5064 * Return nothing.
5065 */
5066static void
5067_scsih_search_responding_expanders(struct MPT2SAS_ADAPTER *ioc)
5068{
5069 Mpi2ExpanderPage0_t expander_pg0;
5070 Mpi2ConfigReply_t mpi_reply;
5071 u16 ioc_status;
5072 __le64 sas_address;
5073 u16 handle;
5074
5075 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
5076
5077 if (list_empty(&ioc->sas_expander_list))
5078 return;
5079
5080 handle = 0xFFFF;
5081 while (!(mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
5082 MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
5083
5084 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5085 MPI2_IOCSTATUS_MASK;
5086 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
5087 break;
5088
5089 handle = le16_to_cpu(expander_pg0.DevHandle);
5090 sas_address = le64_to_cpu(expander_pg0.SASAddress);
5091 printk(KERN_INFO "\texpander present: handle(0x%04x), "
5092 "sas_addr(0x%016llx)\n", handle,
5093 (unsigned long long)sas_address);
5094 _scsih_mark_responding_expander(ioc, sas_address, handle);
5095 }
5096
5097}
5098
5099/**
5100 * _scsih_remove_unresponding_devices - removing unresponding devices
5101 * @ioc: per adapter object
5102 *
5103 * Return nothing.
5104 */
5105static void
5106_scsih_remove_unresponding_devices(struct MPT2SAS_ADAPTER *ioc)
5107{
5108 struct _sas_device *sas_device, *sas_device_next;
5109 struct _sas_node *sas_expander, *sas_expander_next;
5110 struct _raid_device *raid_device, *raid_device_next;
5111 unsigned long flags;
5112
5113 _scsih_search_responding_sas_devices(ioc);
5114 _scsih_search_responding_raid_devices(ioc);
5115 _scsih_search_responding_expanders(ioc);
5116
5117 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
5118 ioc->shost_recovery = 0;
5119 if (ioc->shost->shost_state == SHOST_RECOVERY) {
5120 printk(MPT2SAS_INFO_FMT "putting controller into "
5121 "SHOST_RUNNING\n", ioc->name);
5122 scsi_host_set_state(ioc->shost, SHOST_RUNNING);
5123 }
5124 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
5125
5126 list_for_each_entry_safe(sas_device, sas_device_next,
5127 &ioc->sas_device_list, list) {
5128 if (sas_device->responding) {
5129 sas_device->responding = 0;
5130 continue;
5131 }
5132 if (sas_device->starget)
5133 starget_printk(KERN_INFO, sas_device->starget,
5134 "removing: handle(0x%04x), sas_addr(0x%016llx), "
5135 "enclosure logical id(0x%016llx), slot(%d)\n",
5136 sas_device->handle,
5137 (unsigned long long)sas_device->sas_address,
5138 (unsigned long long)
5139 sas_device->enclosure_logical_id,
5140 sas_device->slot);
5141 _scsih_remove_device(ioc, sas_device->handle);
5142 }
5143
5144 list_for_each_entry_safe(raid_device, raid_device_next,
5145 &ioc->raid_device_list, list) {
5146 if (raid_device->responding) {
5147 raid_device->responding = 0;
5148 continue;
5149 }
5150 if (raid_device->starget) {
5151 starget_printk(KERN_INFO, raid_device->starget,
5152 "removing: handle(0x%04x), wwid(0x%016llx)\n",
5153 raid_device->handle,
5154 (unsigned long long)raid_device->wwid);
5155 scsi_remove_target(&raid_device->starget->dev);
5156 }
5157 _scsih_raid_device_remove(ioc, raid_device);
5158 }
5159
5160 list_for_each_entry_safe(sas_expander, sas_expander_next,
5161 &ioc->sas_expander_list, list) {
5162 if (sas_expander->responding) {
5163 sas_expander->responding = 0;
5164 continue;
5165 }
5166 printk("\tremoving expander: handle(0x%04x), "
5167 " sas_addr(0x%016llx)\n", sas_expander->handle,
5168 (unsigned long long)sas_expander->sas_address);
5169 _scsih_expander_remove(ioc, sas_expander->handle);
5170 }
5171}
5172
5173/**
5174 * _firmware_event_work - delayed task for processing firmware events
5175 * @ioc: per adapter object
5176 * @work: equal to the fw_event_work object
5177 * Context: user.
5178 *
5179 * Return nothing.
5180 */
5181static void
5182_firmware_event_work(struct work_struct *work)
5183{
5184 struct fw_event_work *fw_event = container_of(work,
6f92a7a0 5185 struct fw_event_work, work);
635374e7
EM		 5186 unsigned long flags;
5187 struct MPT2SAS_ADAPTER *ioc = fw_event->ioc;
5188
5189 /* This is invoked by calling _scsih_queue_rescan(). */
5190 if (fw_event->event == MPT2SAS_RESCAN_AFTER_HOST_RESET) {
5191 _scsih_fw_event_free(ioc, fw_event);
5192 _scsih_sas_host_refresh(ioc, 1);
5193 _scsih_remove_unresponding_devices(ioc);
5194 return;
5195 }
5196
5197 /* the queue is being flushed so ignore this event */
5198 spin_lock_irqsave(&ioc->fw_event_lock, flags);
5199 if (ioc->fw_events_off || ioc->remove_host) {
5200 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
5201 _scsih_fw_event_free(ioc, fw_event);
5202 return;
5203 }
5204 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
5205
5206 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
5207 if (ioc->shost_recovery) {
5208 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
5209 _scsih_fw_event_requeue(ioc, fw_event, 1000);
5210 return;
5211 }
5212 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
5213
5214 switch (fw_event->event) {
5215 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
5216 _scsih_sas_topology_change_event(ioc, fw_event->VF_ID,
5217 fw_event->event_data, fw_event);
5218 break;
5219 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
5220 _scsih_sas_device_status_change_event(ioc, fw_event->VF_ID,
5221 fw_event->event_data);
5222 break;
5223 case MPI2_EVENT_SAS_DISCOVERY:
5224 _scsih_sas_discovery_event(ioc, fw_event->VF_ID,
5225 fw_event->event_data);
5226 break;
5227 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
5228 _scsih_sas_broadcast_primative_event(ioc, fw_event->VF_ID,
5229 fw_event->event_data);
5230 break;
5231 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
5232 _scsih_sas_enclosure_dev_status_change_event(ioc,
5233 fw_event->VF_ID, fw_event->event_data);
5234 break;
5235 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
5236 _scsih_sas_ir_config_change_event(ioc, fw_event->VF_ID,
5237 fw_event->event_data);
5238 break;
5239 case MPI2_EVENT_IR_VOLUME:
5240 _scsih_sas_ir_volume_event(ioc, fw_event->VF_ID,
5241 fw_event->event_data);
5242 break;
5243 case MPI2_EVENT_IR_PHYSICAL_DISK:
5244 _scsih_sas_ir_physical_disk_event(ioc, fw_event->VF_ID,
5245 fw_event->event_data);
5246 break;
5247 case MPI2_EVENT_IR_OPERATION_STATUS:
5248 _scsih_sas_ir_operation_status_event(ioc, fw_event->VF_ID,
5249 fw_event->event_data);
5250 break;
5251 case MPI2_EVENT_TASK_SET_FULL:
5252 _scsih_task_set_full(ioc, fw_event->VF_ID,
5253 fw_event->event_data);
5254 break;
5255 }
5256 _scsih_fw_event_free(ioc, fw_event);
5257}
5258
5259/**
5260 * mpt2sas_scsih_event_callback - firmware event handler (called at ISR time)
5261 * @ioc: per adapter object
5262 * @VF_ID: virtual function id
5263 * @reply: reply message frame(lower 32bit addr)
5264 * Context: interrupt.
5265 *
5266 * This function merely adds a new work task into ioc->firmware_event_thread.
5267 * The tasks are worked from _firmware_event_work in user context.
5268 *
5269 * Return nothing.
5270 */
5271void
5272mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID, u32 reply)
5273{
5274 struct fw_event_work *fw_event;
5275 Mpi2EventNotificationReply_t *mpi_reply;
5276 unsigned long flags;
5277 u16 event;
5278
5279 /* events turned off due to host reset or driver unloading */
5280 spin_lock_irqsave(&ioc->fw_event_lock, flags);
5281 if (ioc->fw_events_off || ioc->remove_host) {
5282 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
5283 return;
5284 }
5285 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
5286
5287 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
5288 event = le16_to_cpu(mpi_reply->Event);
5289
5290 switch (event) {
5291 /* handle these */
5292 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
5293 {
5294 Mpi2EventDataSasBroadcastPrimitive_t *baen_data =
5295 (Mpi2EventDataSasBroadcastPrimitive_t *)
5296 mpi_reply->EventData;
5297
5298 if (baen_data->Primitive !=
5299 MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT ||
5300 ioc->broadcast_aen_busy)
5301 return;
5302 ioc->broadcast_aen_busy = 1;
5303 break;
5304 }
5305
5306 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
5307 _scsih_check_topo_delete_events(ioc,
5308 (Mpi2EventDataSasTopologyChangeList_t *)
5309 mpi_reply->EventData);
5310 break;
5311
5312 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
5313 case MPI2_EVENT_IR_OPERATION_STATUS:
5314 case MPI2_EVENT_SAS_DISCOVERY:
5315 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
5316 case MPI2_EVENT_IR_VOLUME:
5317 case MPI2_EVENT_IR_PHYSICAL_DISK:
5318 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
5319 case MPI2_EVENT_TASK_SET_FULL:
5320 break;
5321
5322 default: /* ignore the rest */
5323 return;
5324 }
5325
5326 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
5327 if (!fw_event) {
5328 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5329 ioc->name, __FILE__, __LINE__, __func__);
5330 return;
5331 }
5332 fw_event->event_data =
5333 kzalloc(mpi_reply->EventDataLength*4, GFP_ATOMIC);
5334 if (!fw_event->event_data) {
5335 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5336 ioc->name, __FILE__, __LINE__, __func__);
5337 kfree(fw_event);
5338 return;
5339 }
5340
5341 memcpy(fw_event->event_data, mpi_reply->EventData,
5342 mpi_reply->EventDataLength*4);
5343 fw_event->ioc = ioc;
5344 fw_event->VF_ID = VF_ID;
5345 fw_event->event = event;
5346 _scsih_fw_event_add(ioc, fw_event);
5347}
5348
5349/* shost template */
5350static struct scsi_host_template scsih_driver_template = {
5351 .module = THIS_MODULE,
5352 .name = "Fusion MPT SAS Host",
5353 .proc_name = MPT2SAS_DRIVER_NAME,
d5d135b3
EM		 5354 .queuecommand = _scsih_qcmd,
5355 .target_alloc = _scsih_target_alloc,
5356 .slave_alloc = _scsih_slave_alloc,
5357 .slave_configure = _scsih_slave_configure,
5358 .target_destroy = _scsih_target_destroy,
5359 .slave_destroy = _scsih_slave_destroy,
5360 .change_queue_depth = _scsih_change_queue_depth,
5361 .change_queue_type = _scsih_change_queue_type,
5362 .eh_abort_handler = _scsih_abort,
5363 .eh_device_reset_handler = _scsih_dev_reset,
5364 .eh_target_reset_handler = _scsih_target_reset,
5365 .eh_host_reset_handler = _scsih_host_reset,
5366 .bios_param = _scsih_bios_param,
635374e7
EM		 5367 .can_queue = 1,
5368 .this_id = -1,
5369 .sg_tablesize = MPT2SAS_SG_DEPTH,
5370 .max_sectors = 8192,
5371 .cmd_per_lun = 7,
5372 .use_clustering = ENABLE_CLUSTERING,
5373 .shost_attrs = mpt2sas_host_attrs,
5374 .sdev_attrs = mpt2sas_dev_attrs,
5375};
5376
5377/**
5378 * _scsih_expander_node_remove - removing expander device from list.
5379 * @ioc: per adapter object
5380 * @sas_expander: the sas_device object
5381 * Context: Calling function should acquire ioc->sas_node_lock.
5382 *
5383 * Removing object and freeing associated memory from the
5384 * ioc->sas_expander_list.
5385 *
5386 * Return nothing.
5387 */
5388static void
5389_scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
5390 struct _sas_node *sas_expander)
5391{
5392 struct _sas_port *mpt2sas_port;
5393 struct _sas_device *sas_device;
5394 struct _sas_node *expander_sibling;
5395 unsigned long flags;
5396
5397 if (!sas_expander)
5398 return;
5399
5400 /* remove sibling ports attached to this expander */
5401 retry_device_search:
5402 list_for_each_entry(mpt2sas_port,
5403 &sas_expander->sas_port_list, port_list) {
5404 if (mpt2sas_port->remote_identify.device_type ==
5405 SAS_END_DEVICE) {
5406 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5407 sas_device =
5408 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
5409 mpt2sas_port->remote_identify.sas_address);
5410 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5411 if (!sas_device)
5412 continue;
5413 _scsih_remove_device(ioc, sas_device->handle);
5414 goto retry_device_search;
5415 }
5416 }
5417
5418 retry_expander_search:
5419 list_for_each_entry(mpt2sas_port,
5420 &sas_expander->sas_port_list, port_list) {
5421
5422 if (mpt2sas_port->remote_identify.device_type ==
5423 MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER ||
5424 mpt2sas_port->remote_identify.device_type ==
5425 MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) {
5426
5427 spin_lock_irqsave(&ioc->sas_node_lock, flags);
5428 expander_sibling =
5429 mpt2sas_scsih_expander_find_by_sas_address(
5430 ioc, mpt2sas_port->remote_identify.sas_address);
5431 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
5432 if (!expander_sibling)
5433 continue;
5434 _scsih_expander_remove(ioc, expander_sibling->handle);
5435 goto retry_expander_search;
5436 }
5437 }
5438
5439 mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
5440 sas_expander->parent_handle);
5441
5442 printk(MPT2SAS_INFO_FMT "expander_remove: handle"
5443 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name,
5444 sas_expander->handle, (unsigned long long)
5445 sas_expander->sas_address);
5446
5447 list_del(&sas_expander->list);
5448 kfree(sas_expander->phy);
5449 kfree(sas_expander);
5450}
5451
5452/**
d5d135b3 5453 * _scsih_remove - detach and remove add host
635374e7
EM		 5454 * @pdev: PCI device struct
5455 *
5456 * Return nothing.
5457 */
5458static void __devexit
d5d135b3 5459_scsih_remove(struct pci_dev *pdev)
635374e7
EM		 5460{
5461 struct Scsi_Host *shost = pci_get_drvdata(pdev);
5462 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
5463 struct _sas_port *mpt2sas_port;
5464 struct _sas_device *sas_device;
5465 struct _sas_node *expander_sibling;
5466 struct workqueue_struct *wq;
5467 unsigned long flags;
5468
5469 ioc->remove_host = 1;
5470 _scsih_fw_event_off(ioc);
5471
5472 spin_lock_irqsave(&ioc->fw_event_lock, flags);
5473 wq = ioc->firmware_event_thread;
5474 ioc->firmware_event_thread = NULL;
5475 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
5476 if (wq)
5477 destroy_workqueue(wq);
5478
5479 /* free ports attached to the sas_host */
5480 retry_again:
5481 list_for_each_entry(mpt2sas_port,
5482 &ioc->sas_hba.sas_port_list, port_list) {
5483 if (mpt2sas_port->remote_identify.device_type ==
5484 SAS_END_DEVICE) {
5485 sas_device =
5486 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
5487 mpt2sas_port->remote_identify.sas_address);
5488 if (sas_device) {
5489 _scsih_remove_device(ioc, sas_device->handle);
5490 goto retry_again;
5491 }
5492 } else {
5493 expander_sibling =
5494 mpt2sas_scsih_expander_find_by_sas_address(ioc,
5495 mpt2sas_port->remote_identify.sas_address);
5496 if (expander_sibling) {
5497 _scsih_expander_remove(ioc,
5498 expander_sibling->handle);
5499 goto retry_again;
5500 }
5501 }
5502 }
5503
5504 /* free phys attached to the sas_host */
5505 if (ioc->sas_hba.num_phys) {
5506 kfree(ioc->sas_hba.phy);
5507 ioc->sas_hba.phy = NULL;
5508 ioc->sas_hba.num_phys = 0;
5509 }
5510
5511 sas_remove_host(shost);
5512 mpt2sas_base_detach(ioc);
5513 list_del(&ioc->list);
5514 scsi_remove_host(shost);
5515 scsi_host_put(shost);
5516}
5517
5518/**
5519 * _scsih_probe_boot_devices - reports 1st device
5520 * @ioc: per adapter object
5521 *
5522 * If specified in bios page 2, this routine reports the 1st
5523 * device scsi-ml or sas transport for persistent boot device
5524 * purposes. Please refer to function _scsih_determine_boot_device()
5525 */
5526static void
5527_scsih_probe_boot_devices(struct MPT2SAS_ADAPTER *ioc)
5528{
5529 u8 is_raid;
5530 void *device;
5531 struct _sas_device *sas_device;
5532 struct _raid_device *raid_device;
5533 u16 handle, parent_handle;
5534 u64 sas_address;
5535 unsigned long flags;
5536 int rc;
5537
5538 device = NULL;
5539 if (ioc->req_boot_device.device) {
5540 device = ioc->req_boot_device.device;
5541 is_raid = ioc->req_boot_device.is_raid;
5542 } else if (ioc->req_alt_boot_device.device) {
5543 device = ioc->req_alt_boot_device.device;
5544 is_raid = ioc->req_alt_boot_device.is_raid;
5545 } else if (ioc->current_boot_device.device) {
5546 device = ioc->current_boot_device.device;
5547 is_raid = ioc->current_boot_device.is_raid;
5548 }
5549
5550 if (!device)
5551 return;
5552
5553 if (is_raid) {
5554 raid_device = device;
5555 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
5556 raid_device->id, 0);
5557 if (rc)
5558 _scsih_raid_device_remove(ioc, raid_device);
5559 } else {
5560 sas_device = device;
5561 handle = sas_device->handle;
5562 parent_handle = sas_device->parent_handle;
5563 sas_address = sas_device->sas_address;
5564 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5565 list_move_tail(&sas_device->list, &ioc->sas_device_list);
5566 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5567 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
5568 sas_device->parent_handle)) {
5569 _scsih_sas_device_remove(ioc, sas_device);
5570 } else if (!sas_device->starget) {
5571 mpt2sas_transport_port_remove(ioc, sas_address,
5572 parent_handle);
5573 _scsih_sas_device_remove(ioc, sas_device);
5574 }
5575 }
5576}
5577
5578/**
5579 * _scsih_probe_raid - reporting raid volumes to scsi-ml
5580 * @ioc: per adapter object
5581 *
5582 * Called during initial loading of the driver.
5583 */
5584static void
5585_scsih_probe_raid(struct MPT2SAS_ADAPTER *ioc)
5586{
5587 struct _raid_device *raid_device, *raid_next;
5588 int rc;
5589
5590 list_for_each_entry_safe(raid_device, raid_next,
5591 &ioc->raid_device_list, list) {
5592 if (raid_device->starget)
5593 continue;
5594 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
5595 raid_device->id, 0);
5596 if (rc)
5597 _scsih_raid_device_remove(ioc, raid_device);
5598 }
5599}
5600
5601/**
5602 * _scsih_probe_sas - reporting raid volumes to sas transport
5603 * @ioc: per adapter object
5604 *
5605 * Called during initial loading of the driver.
5606 */
5607static void
5608_scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc)
5609{
5610 struct _sas_device *sas_device, *next;
5611 unsigned long flags;
5612 u16 handle, parent_handle;
5613 u64 sas_address;
5614
5615 /* SAS Device List */
5616 list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list,
5617 list) {
5618 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5619 list_move_tail(&sas_device->list, &ioc->sas_device_list);
5620 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5621
5622 handle = sas_device->handle;
5623 parent_handle = sas_device->parent_handle;
5624 sas_address = sas_device->sas_address;
5625 if (!mpt2sas_transport_port_add(ioc, handle, parent_handle)) {
5626 _scsih_sas_device_remove(ioc, sas_device);
5627 } else if (!sas_device->starget) {
5628 mpt2sas_transport_port_remove(ioc, sas_address,
5629 parent_handle);
5630 _scsih_sas_device_remove(ioc, sas_device);
5631 }
5632 }
5633}
5634
5635/**
5636 * _scsih_probe_devices - probing for devices
5637 * @ioc: per adapter object
5638 *
5639 * Called during initial loading of the driver.
5640 */
5641static void
5642_scsih_probe_devices(struct MPT2SAS_ADAPTER *ioc)
5643{
5644 u16 volume_mapping_flags =
5645 le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) &
5646 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
5647
5648 if (!(ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR))
5649 return; /* return when IOC doesn't support initiator mode */
5650
5651 _scsih_probe_boot_devices(ioc);
5652
5653 if (ioc->ir_firmware) {
5654 if ((volume_mapping_flags &
5655 MPI2_IOCPAGE8_IRFLAGS_HIGH_VOLUME_MAPPING)) {
5656 _scsih_probe_sas(ioc);
5657 _scsih_probe_raid(ioc);
5658 } else {
5659 _scsih_probe_raid(ioc);
5660 _scsih_probe_sas(ioc);
5661 }
5662 } else
5663 _scsih_probe_sas(ioc);
5664}
5665
5666/**
d5d135b3 5667 * _scsih_probe - attach and add scsi host
635374e7
EM		 5668 * @pdev: PCI device struct
5669 * @id: pci device id
5670 *
5671 * Returns 0 success, anything else error.
5672 */
5673static int
d5d135b3 5674_scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
635374e7
EM		 5675{
5676 struct MPT2SAS_ADAPTER *ioc;
5677 struct Scsi_Host *shost;
5678
5679 shost = scsi_host_alloc(&scsih_driver_template,
5680 sizeof(struct MPT2SAS_ADAPTER));
5681 if (!shost)
5682 return -ENODEV;
5683
5684 /* init local params */
5685 ioc = shost_priv(shost);
5686 memset(ioc, 0, sizeof(struct MPT2SAS_ADAPTER));
5687 INIT_LIST_HEAD(&ioc->list);
ba33fadf 5688 list_add_tail(&ioc->list, &mpt2sas_ioc_list);
635374e7
EM		 5689 ioc->shost = shost;
5690 ioc->id = mpt_ids++;
5691 sprintf(ioc->name, "%s%d", MPT2SAS_DRIVER_NAME, ioc->id);
5692 ioc->pdev = pdev;
5693 ioc->scsi_io_cb_idx = scsi_io_cb_idx;
5694 ioc->tm_cb_idx = tm_cb_idx;
5695 ioc->ctl_cb_idx = ctl_cb_idx;
5696 ioc->base_cb_idx = base_cb_idx;
5697 ioc->transport_cb_idx = transport_cb_idx;
5698 ioc->config_cb_idx = config_cb_idx;
5699 ioc->logging_level = logging_level;
5700 /* misc semaphores and spin locks */
5701 spin_lock_init(&ioc->ioc_reset_in_progress_lock);
5702 spin_lock_init(&ioc->scsi_lookup_lock);
5703 spin_lock_init(&ioc->sas_device_lock);
5704 spin_lock_init(&ioc->sas_node_lock);
5705 spin_lock_init(&ioc->fw_event_lock);
5706 spin_lock_init(&ioc->raid_device_lock);
5707
5708 INIT_LIST_HEAD(&ioc->sas_device_list);
5709 INIT_LIST_HEAD(&ioc->sas_device_init_list);
5710 INIT_LIST_HEAD(&ioc->sas_expander_list);
5711 INIT_LIST_HEAD(&ioc->fw_event_list);
5712 INIT_LIST_HEAD(&ioc->raid_device_list);
5713 INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list);
5714
5715 /* init shost parameters */
5716 shost->max_cmd_len = 16;
5717 shost->max_lun = max_lun;
5718 shost->transportt = mpt2sas_transport_template;
5719 shost->unique_id = ioc->id;
5720
5721 if ((scsi_add_host(shost, &pdev->dev))) {
5722 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5723 ioc->name, __FILE__, __LINE__, __func__);
5724 list_del(&ioc->list);
5725 goto out_add_shost_fail;
5726 }
5727
3c621b3e
EM		 5728 scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
5729 | SHOST_DIF_TYPE3_PROTECTION);
5730
635374e7
EM		 5731 /* event thread */
5732 snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
5733 "fw_event%d", ioc->id);
5734 ioc->firmware_event_thread = create_singlethread_workqueue(
5735 ioc->firmware_event_name);
5736 if (!ioc->firmware_event_thread) {
5737 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5738 ioc->name, __FILE__, __LINE__, __func__);
5739 goto out_thread_fail;
5740 }
5741
5742 ioc->wait_for_port_enable_to_complete = 1;
5743 if ((mpt2sas_base_attach(ioc))) {
5744 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5745 ioc->name, __FILE__, __LINE__, __func__);
5746 goto out_attach_fail;
5747 }
5748
5749 ioc->wait_for_port_enable_to_complete = 0;
5750 _scsih_probe_devices(ioc);
5751 return 0;
5752
5753 out_attach_fail:
5754 destroy_workqueue(ioc->firmware_event_thread);
5755 out_thread_fail:
5756 list_del(&ioc->list);
5757 scsi_remove_host(shost);
5758 out_add_shost_fail:
5759 return -ENODEV;
5760}
5761
5762#ifdef CONFIG_PM
5763/**
d5d135b3 5764 * _scsih_suspend - power management suspend main entry point
635374e7
EM		 5765 * @pdev: PCI device struct
5766 * @state: PM state change to (usually PCI_D3)
5767 *
5768 * Returns 0 success, anything else error.
5769 */
5770static int
d5d135b3 5771_scsih_suspend(struct pci_dev *pdev, pm_message_t state)
635374e7
EM		 5772{
5773 struct Scsi_Host *shost = pci_get_drvdata(pdev);
5774 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
5775 u32 device_state;
5776
5777 flush_scheduled_work();
5778 scsi_block_requests(shost);
5779 device_state = pci_choose_state(pdev, state);
5780 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, entering "
5781 "operating state [D%d]\n", ioc->name, pdev,
5782 pci_name(pdev), device_state);
5783
5784 mpt2sas_base_free_resources(ioc);
5785 pci_save_state(pdev);
5786 pci_disable_device(pdev);
5787 pci_set_power_state(pdev, device_state);
5788 return 0;
5789}
5790
5791/**
d5d135b3 5792 * _scsih_resume - power management resume main entry point
635374e7
EM		 5793 * @pdev: PCI device struct
5794 *
5795 * Returns 0 success, anything else error.
5796 */
5797static int
d5d135b3 5798_scsih_resume(struct pci_dev *pdev)
635374e7
EM		 5799{
5800 struct Scsi_Host *shost = pci_get_drvdata(pdev);
5801 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
5802 u32 device_state = pdev->current_state;
5803 int r;
5804
5805 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, previous "
5806 "operating state [D%d]\n", ioc->name, pdev,
5807 pci_name(pdev), device_state);
5808
5809 pci_set_power_state(pdev, PCI_D0);
5810 pci_enable_wake(pdev, PCI_D0, 0);
5811 pci_restore_state(pdev);
5812 ioc->pdev = pdev;
5813 r = mpt2sas_base_map_resources(ioc);
5814 if (r)
5815 return r;
5816
5817 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, SOFT_RESET);
5818 scsi_unblock_requests(shost);
5819 return 0;
5820}
5821#endif /* CONFIG_PM */
5822
5823
5824static struct pci_driver scsih_driver = {
5825 .name = MPT2SAS_DRIVER_NAME,
5826 .id_table = scsih_pci_table,
d5d135b3
EM		 5827 .probe = _scsih_probe,
5828 .remove = __devexit_p(_scsih_remove),
635374e7 5829#ifdef CONFIG_PM
d5d135b3
EM		 5830 .suspend = _scsih_suspend,
5831 .resume = _scsih_resume,
635374e7
EM		 5832#endif
5833};
5834
5835
5836/**
d5d135b3 5837 * _scsih_init - main entry point for this driver.
635374e7
EM		 5838 *
5839 * Returns 0 success, anything else error.
5840 */
5841static int __init
d5d135b3 5842_scsih_init(void)
635374e7
EM		 5843{
5844 int error;
5845
5846 mpt_ids = 0;
5847 printk(KERN_INFO "%s version %s loaded\n", MPT2SAS_DRIVER_NAME,
5848 MPT2SAS_DRIVER_VERSION);
5849
5850 mpt2sas_transport_template =
5851 sas_attach_transport(&mpt2sas_transport_functions);
5852 if (!mpt2sas_transport_template)
5853 return -ENODEV;
5854
5855 mpt2sas_base_initialize_callback_handler();
5856
5857 /* queuecommand callback hander */
d5d135b3 5858 scsi_io_cb_idx = mpt2sas_base_register_callback_handler(_scsih_io_done);
635374e7
EM		 5859
5860 /* task managment callback handler */
d5d135b3 5861 tm_cb_idx = mpt2sas_base_register_callback_handler(_scsih_tm_done);
635374e7
EM		 5862
5863 /* base internal commands callback handler */
5864 base_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_base_done);
5865
5866 /* transport internal commands callback handler */
5867 transport_cb_idx = mpt2sas_base_register_callback_handler(
5868 mpt2sas_transport_done);
5869
5870 /* configuration page API internal commands callback handler */
5871 config_cb_idx = mpt2sas_base_register_callback_handler(
5872 mpt2sas_config_done);
5873
5874 /* ctl module callback handler */
5875 ctl_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_ctl_done);
5876
5877 mpt2sas_ctl_init();
5878
5879 error = pci_register_driver(&scsih_driver);
5880 if (error)
5881 sas_release_transport(mpt2sas_transport_template);
5882
5883 return error;
5884}
5885
5886/**
d5d135b3 5887 * _scsih_exit - exit point for this driver (when it is a module).
635374e7
EM		 5888 *
5889 * Returns 0 success, anything else error.
5890 */
5891static void __exit
d5d135b3 5892_scsih_exit(void)
635374e7
EM		 5893{
5894 printk(KERN_INFO "mpt2sas version %s unloading\n",
5895 MPT2SAS_DRIVER_VERSION);
5896
5897 pci_unregister_driver(&scsih_driver);
5898
5899 sas_release_transport(mpt2sas_transport_template);
5900 mpt2sas_base_release_callback_handler(scsi_io_cb_idx);
5901 mpt2sas_base_release_callback_handler(tm_cb_idx);
5902 mpt2sas_base_release_callback_handler(base_cb_idx);
5903 mpt2sas_base_release_callback_handler(transport_cb_idx);
5904 mpt2sas_base_release_callback_handler(config_cb_idx);
5905 mpt2sas_base_release_callback_handler(ctl_cb_idx);
5906
5907 mpt2sas_ctl_exit();
5908}
5909
d5d135b3
EM		 5910module_init(_scsih_init);
5911module_exit(_scsih_exit);
Linux 6.x block layer and io_uring tree(s)