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[mirror_ubuntu-bionic-kernel.git] / drivers / scsi / mpt3sas / mpt3sas_scsih.c
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f92363d1
SR		 1/*
2 * Scsi Host Layer for MPT (Message Passing Technology) based controllers
3 *
4 * This code is based on drivers/scsi/mpt3sas/mpt3sas_scsih.c
48e3b985 5 * Copyright (C) 2012-2013 LSI Corporation
f92363d1
SR		 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
f92363d1
SR		 44#include <linux/module.h>
45#include <linux/kernel.h>
46#include <linux/init.h>
47#include <linux/errno.h>
48#include <linux/blkdev.h>
49#include <linux/sched.h>
50#include <linux/workqueue.h>
51#include <linux/delay.h>
52#include <linux/pci.h>
53#include <linux/interrupt.h>
54#include <linux/aer.h>
55#include <linux/raid_class.h>
56
57#include "mpt3sas_base.h"
58
59MODULE_AUTHOR(MPT3SAS_AUTHOR);
60MODULE_DESCRIPTION(MPT3SAS_DESCRIPTION);
61MODULE_LICENSE("GPL");
62MODULE_VERSION(MPT3SAS_DRIVER_VERSION);
63
64#define RAID_CHANNEL 1
65/* forward proto's */
66static void _scsih_expander_node_remove(struct MPT3SAS_ADAPTER *ioc,
67 struct _sas_node *sas_expander);
68static void _firmware_event_work(struct work_struct *work);
69
70static void _scsih_remove_device(struct MPT3SAS_ADAPTER *ioc,
71 struct _sas_device *sas_device);
72static int _scsih_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle,
73 u8 retry_count, u8 is_pd);
74
75static u8 _scsih_check_for_pending_tm(struct MPT3SAS_ADAPTER *ioc, u16 smid);
76
77static void _scsih_scan_start(struct Scsi_Host *shost);
78static int _scsih_scan_finished(struct Scsi_Host *shost, unsigned long time);
79
80/* global parameters */
81LIST_HEAD(mpt3sas_ioc_list);
82
83/* local parameters */
84static u8 scsi_io_cb_idx = -1;
85static u8 tm_cb_idx = -1;
86static u8 ctl_cb_idx = -1;
87static u8 base_cb_idx = -1;
88static u8 port_enable_cb_idx = -1;
89static u8 transport_cb_idx = -1;
90static u8 scsih_cb_idx = -1;
91static u8 config_cb_idx = -1;
92static int mpt_ids;
93
94static u8 tm_tr_cb_idx = -1 ;
95static u8 tm_tr_volume_cb_idx = -1 ;
96static u8 tm_sas_control_cb_idx = -1;
97
98/* command line options */
99static u32 logging_level;
100MODULE_PARM_DESC(logging_level,
101 " bits for enabling additional logging info (default=0)");
102
103
104static ushort max_sectors = 0xFFFF;
105module_param(max_sectors, ushort, 0);
106MODULE_PARM_DESC(max_sectors, "max sectors, range 64 to 32767 default=32767");
107
108
109static int missing_delay[2] = {-1, -1};
110module_param_array(missing_delay, int, NULL, 0);
111MODULE_PARM_DESC(missing_delay, " device missing delay , io missing delay");
112
113/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
114#define MPT3SAS_MAX_LUN (16895)
115static int max_lun = MPT3SAS_MAX_LUN;
116module_param(max_lun, int, 0);
117MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
118
119
120
121
122/* diag_buffer_enable is bitwise
123 * bit 0 set = TRACE
124 * bit 1 set = SNAPSHOT
125 * bit 2 set = EXTENDED
126 *
127 * Either bit can be set, or both
128 */
129static int diag_buffer_enable = -1;
130module_param(diag_buffer_enable, int, 0);
131MODULE_PARM_DESC(diag_buffer_enable,
132 " post diag buffers (TRACE=1/SNAPSHOT=2/EXTENDED=4/default=0)");
133static int disable_discovery = -1;
134module_param(disable_discovery, int, 0);
135MODULE_PARM_DESC(disable_discovery, " disable discovery ");
136
137
138/* permit overriding the host protection capabilities mask (EEDP/T10 PI) */
139static int prot_mask = -1;
140module_param(prot_mask, int, 0);
141MODULE_PARM_DESC(prot_mask, " host protection capabilities mask, def=7 ");
142
143
144/* raid transport support */
145
146static struct raid_template *mpt3sas_raid_template;
147
148
149/**
150 * struct sense_info - common structure for obtaining sense keys
151 * @skey: sense key
152 * @asc: additional sense code
153 * @ascq: additional sense code qualifier
154 */
155struct sense_info {
156 u8 skey;
157 u8 asc;
158 u8 ascq;
159};
160
161#define MPT3SAS_PROCESS_TRIGGER_DIAG (0xFFFB)
162#define MPT3SAS_TURN_ON_FAULT_LED (0xFFFC)
163#define MPT3SAS_PORT_ENABLE_COMPLETE (0xFFFD)
164#define MPT3SAS_ABRT_TASK_SET (0xFFFE)
165#define MPT3SAS_REMOVE_UNRESPONDING_DEVICES (0xFFFF)
166/**
167 * struct fw_event_work - firmware event struct
168 * @list: link list framework
169 * @work: work object (ioc->fault_reset_work_q)
170 * @cancel_pending_work: flag set during reset handling
171 * @ioc: per adapter object
172 * @device_handle: device handle
173 * @VF_ID: virtual function id
174 * @VP_ID: virtual port id
175 * @ignore: flag meaning this event has been marked to ignore
176 * @event: firmware event MPI2_EVENT_XXX defined in mpt2_ioc.h
177 * @event_data: reply event data payload follows
178 *
179 * This object stored on ioc->fw_event_list.
180 */
181struct fw_event_work {
182 struct list_head list;
183 struct work_struct work;
184 u8 cancel_pending_work;
185 struct delayed_work delayed_work;
186
187 struct MPT3SAS_ADAPTER *ioc;
188 u16 device_handle;
189 u8 VF_ID;
190 u8 VP_ID;
191 u8 ignore;
192 u16 event;
193 void *event_data;
194};
195
196/* raid transport support */
197static struct raid_template *mpt3sas_raid_template;
198
199/**
200 * struct _scsi_io_transfer - scsi io transfer
201 * @handle: sas device handle (assigned by firmware)
202 * @is_raid: flag set for hidden raid components
203 * @dir: DMA_TO_DEVICE, DMA_FROM_DEVICE,
204 * @data_length: data transfer length
205 * @data_dma: dma pointer to data
206 * @sense: sense data
207 * @lun: lun number
208 * @cdb_length: cdb length
209 * @cdb: cdb contents
210 * @timeout: timeout for this command
211 * @VF_ID: virtual function id
212 * @VP_ID: virtual port id
213 * @valid_reply: flag set for reply message
214 * @sense_length: sense length
215 * @ioc_status: ioc status
216 * @scsi_state: scsi state
217 * @scsi_status: scsi staus
218 * @log_info: log information
219 * @transfer_length: data length transfer when there is a reply message
220 *
221 * Used for sending internal scsi commands to devices within this module.
222 * Refer to _scsi_send_scsi_io().
223 */
224struct _scsi_io_transfer {
225 u16 handle;
226 u8 is_raid;
227 enum dma_data_direction dir;
228 u32 data_length;
229 dma_addr_t data_dma;
230 u8 sense[SCSI_SENSE_BUFFERSIZE];
231 u32 lun;
232 u8 cdb_length;
233 u8 cdb[32];
234 u8 timeout;
235 u8 VF_ID;
236 u8 VP_ID;
237 u8 valid_reply;
238 /* the following bits are only valid when 'valid_reply = 1' */
239 u32 sense_length;
240 u16 ioc_status;
241 u8 scsi_state;
242 u8 scsi_status;
243 u32 log_info;
244 u32 transfer_length;
245};
246
247/*
248 * The pci device ids are defined in mpi/mpi2_cnfg.h.
249 */
250static DEFINE_PCI_DEVICE_TABLE(scsih_pci_table) = {
251 /* Fury ~ 3004 and 3008 */
252 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3004,
253 PCI_ANY_ID, PCI_ANY_ID },
254 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3008,
255 PCI_ANY_ID, PCI_ANY_ID },
256 /* Invader ~ 3108 */
257 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_1,
258 PCI_ANY_ID, PCI_ANY_ID },
259 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_2,
260 PCI_ANY_ID, PCI_ANY_ID },
261 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_5,
262 PCI_ANY_ID, PCI_ANY_ID },
263 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_6,
264 PCI_ANY_ID, PCI_ANY_ID },
265 {0} /* Terminating entry */
266};
267MODULE_DEVICE_TABLE(pci, scsih_pci_table);
268
269/**
270 * _scsih_set_debug_level - global setting of ioc->logging_level.
271 *
272 * Note: The logging levels are defined in mpt3sas_debug.h.
273 */
274static int
275_scsih_set_debug_level(const char *val, struct kernel_param *kp)
276{
277 int ret = param_set_int(val, kp);
278 struct MPT3SAS_ADAPTER *ioc;
279
280 if (ret)
281 return ret;
282
283 pr_info("setting logging_level(0x%08x)\n", logging_level);
284 list_for_each_entry(ioc, &mpt3sas_ioc_list, list)
285 ioc->logging_level = logging_level;
286 return 0;
287}
288module_param_call(logging_level, _scsih_set_debug_level, param_get_int,
289 &logging_level, 0644);
290
291/**
292 * _scsih_srch_boot_sas_address - search based on sas_address
293 * @sas_address: sas address
294 * @boot_device: boot device object from bios page 2
295 *
296 * Returns 1 when there's a match, 0 means no match.
297 */
298static inline int
299_scsih_srch_boot_sas_address(u64 sas_address,
300 Mpi2BootDeviceSasWwid_t *boot_device)
301{
302 return (sas_address == le64_to_cpu(boot_device->SASAddress)) ? 1 : 0;
303}
304
305/**
306 * _scsih_srch_boot_device_name - search based on device name
307 * @device_name: device name specified in INDENTIFY fram
308 * @boot_device: boot device object from bios page 2
309 *
310 * Returns 1 when there's a match, 0 means no match.
311 */
312static inline int
313_scsih_srch_boot_device_name(u64 device_name,
314 Mpi2BootDeviceDeviceName_t *boot_device)
315{
316 return (device_name == le64_to_cpu(boot_device->DeviceName)) ? 1 : 0;
317}
318
319/**
320 * _scsih_srch_boot_encl_slot - search based on enclosure_logical_id/slot
321 * @enclosure_logical_id: enclosure logical id
322 * @slot_number: slot number
323 * @boot_device: boot device object from bios page 2
324 *
325 * Returns 1 when there's a match, 0 means no match.
326 */
327static inline int
328_scsih_srch_boot_encl_slot(u64 enclosure_logical_id, u16 slot_number,
329 Mpi2BootDeviceEnclosureSlot_t *boot_device)
330{
331 return (enclosure_logical_id == le64_to_cpu(boot_device->
332 EnclosureLogicalID) && slot_number == le16_to_cpu(boot_device->
333 SlotNumber)) ? 1 : 0;
334}
335
336/**
337 * _scsih_is_boot_device - search for matching boot device.
338 * @sas_address: sas address
339 * @device_name: device name specified in INDENTIFY fram
340 * @enclosure_logical_id: enclosure logical id
341 * @slot_number: slot number
342 * @form: specifies boot device form
343 * @boot_device: boot device object from bios page 2
344 *
345 * Returns 1 when there's a match, 0 means no match.
346 */
347static int
348_scsih_is_boot_device(u64 sas_address, u64 device_name,
349 u64 enclosure_logical_id, u16 slot, u8 form,
350 Mpi2BiosPage2BootDevice_t *boot_device)
351{
352 int rc = 0;
353
354 switch (form) {
355 case MPI2_BIOSPAGE2_FORM_SAS_WWID:
356 if (!sas_address)
357 break;
358 rc = _scsih_srch_boot_sas_address(
359 sas_address, &boot_device->SasWwid);
360 break;
361 case MPI2_BIOSPAGE2_FORM_ENCLOSURE_SLOT:
362 if (!enclosure_logical_id)
363 break;
364 rc = _scsih_srch_boot_encl_slot(
365 enclosure_logical_id,
366 slot, &boot_device->EnclosureSlot);
367 break;
368 case MPI2_BIOSPAGE2_FORM_DEVICE_NAME:
369 if (!device_name)
370 break;
371 rc = _scsih_srch_boot_device_name(
372 device_name, &boot_device->DeviceName);
373 break;
374 case MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED:
375 break;
376 }
377
378 return rc;
379}
380
381/**
382 * _scsih_get_sas_address - set the sas_address for given device handle
383 * @handle: device handle
384 * @sas_address: sas address
385 *
386 * Returns 0 success, non-zero when failure
387 */
388static int
389_scsih_get_sas_address(struct MPT3SAS_ADAPTER *ioc, u16 handle,
390 u64 *sas_address)
391{
392 Mpi2SasDevicePage0_t sas_device_pg0;
393 Mpi2ConfigReply_t mpi_reply;
394 u32 ioc_status;
395
396 *sas_address = 0;
397
398 if (handle <= ioc->sas_hba.num_phys) {
399 *sas_address = ioc->sas_hba.sas_address;
400 return 0;
401 }
402
403 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
404 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
405 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", ioc->name,
406 __FILE__, __LINE__, __func__);
407 return -ENXIO;
408 }
409
410 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
411 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
412 *sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
413 return 0;
414 }
415
416 /* we hit this becuase the given parent handle doesn't exist */
417 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
418 return -ENXIO;
419
420 /* else error case */
421 pr_err(MPT3SAS_FMT
422 "handle(0x%04x), ioc_status(0x%04x), failure at %s:%d/%s()!\n",
423 ioc->name, handle, ioc_status,
424 __FILE__, __LINE__, __func__);
425 return -EIO;
426}
427
428/**
429 * _scsih_determine_boot_device - determine boot device.
430 * @ioc: per adapter object
431 * @device: either sas_device or raid_device object
432 * @is_raid: [flag] 1 = raid object, 0 = sas object
433 *
434 * Determines whether this device should be first reported device to
435 * to scsi-ml or sas transport, this purpose is for persistent boot device.
436 * There are primary, alternate, and current entries in bios page 2. The order
437 * priority is primary, alternate, then current. This routine saves
438 * the corresponding device object and is_raid flag in the ioc object.
439 * The saved data to be used later in _scsih_probe_boot_devices().
440 */
441static void
442_scsih_determine_boot_device(struct MPT3SAS_ADAPTER *ioc,
443 void *device, u8 is_raid)
444{
445 struct _sas_device *sas_device;
446 struct _raid_device *raid_device;
447 u64 sas_address;
448 u64 device_name;
449 u64 enclosure_logical_id;
450 u16 slot;
451
452 /* only process this function when driver loads */
453 if (!ioc->is_driver_loading)
454 return;
455
456 /* no Bios, return immediately */
457 if (!ioc->bios_pg3.BiosVersion)
458 return;
459
460 if (!is_raid) {
461 sas_device = device;
462 sas_address = sas_device->sas_address;
463 device_name = sas_device->device_name;
464 enclosure_logical_id = sas_device->enclosure_logical_id;
465 slot = sas_device->slot;
466 } else {
467 raid_device = device;
468 sas_address = raid_device->wwid;
469 device_name = 0;
470 enclosure_logical_id = 0;
471 slot = 0;
472 }
473
474 if (!ioc->req_boot_device.device) {
475 if (_scsih_is_boot_device(sas_address, device_name,
476 enclosure_logical_id, slot,
477 (ioc->bios_pg2.ReqBootDeviceForm &
478 MPI2_BIOSPAGE2_FORM_MASK),
479 &ioc->bios_pg2.RequestedBootDevice)) {
480 dinitprintk(ioc, pr_info(MPT3SAS_FMT
481 "%s: req_boot_device(0x%016llx)\n",
482 ioc->name, __func__,
483 (unsigned long long)sas_address));
484 ioc->req_boot_device.device = device;
485 ioc->req_boot_device.is_raid = is_raid;
486 }
487 }
488
489 if (!ioc->req_alt_boot_device.device) {
490 if (_scsih_is_boot_device(sas_address, device_name,
491 enclosure_logical_id, slot,
492 (ioc->bios_pg2.ReqAltBootDeviceForm &
493 MPI2_BIOSPAGE2_FORM_MASK),
494 &ioc->bios_pg2.RequestedAltBootDevice)) {
495 dinitprintk(ioc, pr_info(MPT3SAS_FMT
496 "%s: req_alt_boot_device(0x%016llx)\n",
497 ioc->name, __func__,
498 (unsigned long long)sas_address));
499 ioc->req_alt_boot_device.device = device;
500 ioc->req_alt_boot_device.is_raid = is_raid;
501 }
502 }
503
504 if (!ioc->current_boot_device.device) {
505 if (_scsih_is_boot_device(sas_address, device_name,
506 enclosure_logical_id, slot,
507 (ioc->bios_pg2.CurrentBootDeviceForm &
508 MPI2_BIOSPAGE2_FORM_MASK),
509 &ioc->bios_pg2.CurrentBootDevice)) {
510 dinitprintk(ioc, pr_info(MPT3SAS_FMT
511 "%s: current_boot_device(0x%016llx)\n",
512 ioc->name, __func__,
513 (unsigned long long)sas_address));
514 ioc->current_boot_device.device = device;
515 ioc->current_boot_device.is_raid = is_raid;
516 }
517 }
518}
519
520/**
521 * mpt3sas_scsih_sas_device_find_by_sas_address - sas device search
522 * @ioc: per adapter object
523 * @sas_address: sas address
524 * Context: Calling function should acquire ioc->sas_device_lock
525 *
526 * This searches for sas_device based on sas_address, then return sas_device
527 * object.
528 */
529struct _sas_device *
530mpt3sas_scsih_sas_device_find_by_sas_address(struct MPT3SAS_ADAPTER *ioc,
531 u64 sas_address)
532{
533 struct _sas_device *sas_device;
534
535 list_for_each_entry(sas_device, &ioc->sas_device_list, list)
536 if (sas_device->sas_address == sas_address)
537 return sas_device;
538
539 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
540 if (sas_device->sas_address == sas_address)
541 return sas_device;
542
543 return NULL;
544}
545
546/**
547 * _scsih_sas_device_find_by_handle - sas device search
548 * @ioc: per adapter object
549 * @handle: sas device handle (assigned by firmware)
550 * Context: Calling function should acquire ioc->sas_device_lock
551 *
552 * This searches for sas_device based on sas_address, then return sas_device
553 * object.
554 */
555static struct _sas_device *
556_scsih_sas_device_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
557{
558 struct _sas_device *sas_device;
559
560 list_for_each_entry(sas_device, &ioc->sas_device_list, list)
561 if (sas_device->handle == handle)
562 return sas_device;
563
564 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
565 if (sas_device->handle == handle)
566 return sas_device;
567
568 return NULL;
569}
570
571/**
572 * _scsih_sas_device_remove - remove sas_device from list.
573 * @ioc: per adapter object
574 * @sas_device: the sas_device object
575 * Context: This function will acquire ioc->sas_device_lock.
576 *
577 * Removing object and freeing associated memory from the ioc->sas_device_list.
578 */
579static void
580_scsih_sas_device_remove(struct MPT3SAS_ADAPTER *ioc,
581 struct _sas_device *sas_device)
582{
583 unsigned long flags;
584
585 if (!sas_device)
586 return;
587
588 spin_lock_irqsave(&ioc->sas_device_lock, flags);
589 list_del(&sas_device->list);
590 kfree(sas_device);
591 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
592}
593
594/**
595 * _scsih_device_remove_by_handle - removing device object by handle
596 * @ioc: per adapter object
597 * @handle: device handle
598 *
599 * Return nothing.
600 */
601static void
602_scsih_device_remove_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
603{
604 struct _sas_device *sas_device;
605 unsigned long flags;
606
607 if (ioc->shost_recovery)
608 return;
609
610 spin_lock_irqsave(&ioc->sas_device_lock, flags);
611 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
612 if (sas_device)
613 list_del(&sas_device->list);
614 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
615 if (sas_device)
616 _scsih_remove_device(ioc, sas_device);
617}
618
619/**
620 * mpt3sas_device_remove_by_sas_address - removing device object by sas address
621 * @ioc: per adapter object
622 * @sas_address: device sas_address
623 *
624 * Return nothing.
625 */
626void
627mpt3sas_device_remove_by_sas_address(struct MPT3SAS_ADAPTER *ioc,
628 u64 sas_address)
629{
630 struct _sas_device *sas_device;
631 unsigned long flags;
632
633 if (ioc->shost_recovery)
634 return;
635
636 spin_lock_irqsave(&ioc->sas_device_lock, flags);
637 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
638 sas_address);
639 if (sas_device)
640 list_del(&sas_device->list);
641 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
642 if (sas_device)
643 _scsih_remove_device(ioc, sas_device);
644}
645
646/**
647 * _scsih_sas_device_add - insert sas_device to the list.
648 * @ioc: per adapter object
649 * @sas_device: the sas_device object
650 * Context: This function will acquire ioc->sas_device_lock.
651 *
652 * Adding new object to the ioc->sas_device_list.
653 */
654static void
655_scsih_sas_device_add(struct MPT3SAS_ADAPTER *ioc,
656 struct _sas_device *sas_device)
657{
658 unsigned long flags;
659
660 dewtprintk(ioc, pr_info(MPT3SAS_FMT
661 "%s: handle(0x%04x), sas_addr(0x%016llx)\n",
662 ioc->name, __func__, sas_device->handle,
663 (unsigned long long)sas_device->sas_address));
664
665 spin_lock_irqsave(&ioc->sas_device_lock, flags);
666 list_add_tail(&sas_device->list, &ioc->sas_device_list);
667 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
668
669 if (!mpt3sas_transport_port_add(ioc, sas_device->handle,
670 sas_device->sas_address_parent)) {
671 _scsih_sas_device_remove(ioc, sas_device);
672 } else if (!sas_device->starget) {
673 /*
674 * When asyn scanning is enabled, its not possible to remove
675 * devices while scanning is turned on due to an oops in
676 * scsi_sysfs_add_sdev()->add_device()->sysfs_addrm_start()
677 */
f5edbe77 678 if (!ioc->is_driver_loading) {
f92363d1
SR		 679 mpt3sas_transport_port_remove(ioc,
680 sas_device->sas_address,
681 sas_device->sas_address_parent);
f5edbe77
SR		 682 _scsih_sas_device_remove(ioc, sas_device);
683 }
f92363d1
SR		 684 }
685}
686
687/**
688 * _scsih_sas_device_init_add - insert sas_device to the list.
689 * @ioc: per adapter object
690 * @sas_device: the sas_device object
691 * Context: This function will acquire ioc->sas_device_lock.
692 *
693 * Adding new object at driver load time to the ioc->sas_device_init_list.
694 */
695static void
696_scsih_sas_device_init_add(struct MPT3SAS_ADAPTER *ioc,
697 struct _sas_device *sas_device)
698{
699 unsigned long flags;
700
701 dewtprintk(ioc, pr_info(MPT3SAS_FMT
702 "%s: handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name,
703 __func__, sas_device->handle,
704 (unsigned long long)sas_device->sas_address));
705
706 spin_lock_irqsave(&ioc->sas_device_lock, flags);
707 list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
708 _scsih_determine_boot_device(ioc, sas_device, 0);
709 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
710}
711
712/**
713 * _scsih_raid_device_find_by_id - raid device search
714 * @ioc: per adapter object
715 * @id: sas device target id
716 * @channel: sas device channel
717 * Context: Calling function should acquire ioc->raid_device_lock
718 *
719 * This searches for raid_device based on target id, then return raid_device
720 * object.
721 */
722static struct _raid_device *
723_scsih_raid_device_find_by_id(struct MPT3SAS_ADAPTER *ioc, int id, int channel)
724{
725 struct _raid_device *raid_device, *r;
726
727 r = NULL;
728 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
729 if (raid_device->id == id && raid_device->channel == channel) {
730 r = raid_device;
731 goto out;
732 }
733 }
734
735 out:
736 return r;
737}
738
739/**
740 * _scsih_raid_device_find_by_handle - raid device search
741 * @ioc: per adapter object
742 * @handle: sas device handle (assigned by firmware)
743 * Context: Calling function should acquire ioc->raid_device_lock
744 *
745 * This searches for raid_device based on handle, then return raid_device
746 * object.
747 */
748static struct _raid_device *
749_scsih_raid_device_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
750{
751 struct _raid_device *raid_device, *r;
752
753 r = NULL;
754 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
755 if (raid_device->handle != handle)
756 continue;
757 r = raid_device;
758 goto out;
759 }
760
761 out:
762 return r;
763}
764
765/**
766 * _scsih_raid_device_find_by_wwid - raid device search
767 * @ioc: per adapter object
768 * @handle: sas device handle (assigned by firmware)
769 * Context: Calling function should acquire ioc->raid_device_lock
770 *
771 * This searches for raid_device based on wwid, then return raid_device
772 * object.
773 */
774static struct _raid_device *
775_scsih_raid_device_find_by_wwid(struct MPT3SAS_ADAPTER *ioc, u64 wwid)
776{
777 struct _raid_device *raid_device, *r;
778
779 r = NULL;
780 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
781 if (raid_device->wwid != wwid)
782 continue;
783 r = raid_device;
784 goto out;
785 }
786
787 out:
788 return r;
789}
790
791/**
792 * _scsih_raid_device_add - add raid_device object
793 * @ioc: per adapter object
794 * @raid_device: raid_device object
795 *
796 * This is added to the raid_device_list link list.
797 */
798static void
799_scsih_raid_device_add(struct MPT3SAS_ADAPTER *ioc,
800 struct _raid_device *raid_device)
801{
802 unsigned long flags;
803
804 dewtprintk(ioc, pr_info(MPT3SAS_FMT
805 "%s: handle(0x%04x), wwid(0x%016llx)\n", ioc->name, __func__,
806 raid_device->handle, (unsigned long long)raid_device->wwid));
807
808 spin_lock_irqsave(&ioc->raid_device_lock, flags);
809 list_add_tail(&raid_device->list, &ioc->raid_device_list);
810 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
811}
812
813/**
814 * _scsih_raid_device_remove - delete raid_device object
815 * @ioc: per adapter object
816 * @raid_device: raid_device object
817 *
818 */
819static void
820_scsih_raid_device_remove(struct MPT3SAS_ADAPTER *ioc,
821 struct _raid_device *raid_device)
822{
823 unsigned long flags;
824
825 spin_lock_irqsave(&ioc->raid_device_lock, flags);
826 list_del(&raid_device->list);
827 kfree(raid_device);
828 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
829}
830
831/**
832 * mpt3sas_scsih_expander_find_by_handle - expander device search
833 * @ioc: per adapter object
834 * @handle: expander handle (assigned by firmware)
835 * Context: Calling function should acquire ioc->sas_device_lock
836 *
837 * This searches for expander device based on handle, then returns the
838 * sas_node object.
839 */
840struct _sas_node *
841mpt3sas_scsih_expander_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
842{
843 struct _sas_node *sas_expander, *r;
844
845 r = NULL;
846 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
847 if (sas_expander->handle != handle)
848 continue;
849 r = sas_expander;
850 goto out;
851 }
852 out:
853 return r;
854}
855
856/**
857 * mpt3sas_scsih_expander_find_by_sas_address - expander device search
858 * @ioc: per adapter object
859 * @sas_address: sas address
860 * Context: Calling function should acquire ioc->sas_node_lock.
861 *
862 * This searches for expander device based on sas_address, then returns the
863 * sas_node object.
864 */
865struct _sas_node *
866mpt3sas_scsih_expander_find_by_sas_address(struct MPT3SAS_ADAPTER *ioc,
867 u64 sas_address)
868{
869 struct _sas_node *sas_expander, *r;
870
871 r = NULL;
872 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
873 if (sas_expander->sas_address != sas_address)
874 continue;
875 r = sas_expander;
876 goto out;
877 }
878 out:
879 return r;
880}
881
882/**
883 * _scsih_expander_node_add - insert expander device to the list.
884 * @ioc: per adapter object
885 * @sas_expander: the sas_device object
886 * Context: This function will acquire ioc->sas_node_lock.
887 *
888 * Adding new object to the ioc->sas_expander_list.
889 *
890 * Return nothing.
891 */
892static void
893_scsih_expander_node_add(struct MPT3SAS_ADAPTER *ioc,
894 struct _sas_node *sas_expander)
895{
896 unsigned long flags;
897
898 spin_lock_irqsave(&ioc->sas_node_lock, flags);
899 list_add_tail(&sas_expander->list, &ioc->sas_expander_list);
900 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
901}
902
903/**
904 * _scsih_is_end_device - determines if device is an end device
905 * @device_info: bitfield providing information about the device.
906 * Context: none
907 *
908 * Returns 1 if end device.
909 */
910static int
911_scsih_is_end_device(u32 device_info)
912{
913 if (device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE &&
914 ((device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) |
915 (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) |
916 (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))
917 return 1;
918 else
919 return 0;
920}
921
922/**
923 * _scsih_scsi_lookup_get - returns scmd entry
924 * @ioc: per adapter object
925 * @smid: system request message index
926 *
927 * Returns the smid stored scmd pointer.
928 */
929static struct scsi_cmnd *
930_scsih_scsi_lookup_get(struct MPT3SAS_ADAPTER *ioc, u16 smid)
931{
932 return ioc->scsi_lookup[smid - 1].scmd;
933}
934
935/**
936 * _scsih_scsi_lookup_get_clear - returns scmd entry
937 * @ioc: per adapter object
938 * @smid: system request message index
939 *
940 * Returns the smid stored scmd pointer.
941 * Then will derefrence the stored scmd pointer.
942 */
943static inline struct scsi_cmnd *
944_scsih_scsi_lookup_get_clear(struct MPT3SAS_ADAPTER *ioc, u16 smid)
945{
946 unsigned long flags;
947 struct scsi_cmnd *scmd;
948
949 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
950 scmd = ioc->scsi_lookup[smid - 1].scmd;
951 ioc->scsi_lookup[smid - 1].scmd = NULL;
952 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
953
954 return scmd;
955}
956
957/**
958 * _scsih_scsi_lookup_find_by_scmd - scmd lookup
959 * @ioc: per adapter object
960 * @smid: system request message index
961 * @scmd: pointer to scsi command object
962 * Context: This function will acquire ioc->scsi_lookup_lock.
963 *
964 * This will search for a scmd pointer in the scsi_lookup array,
965 * returning the revelent smid. A returned value of zero means invalid.
966 */
967static u16
968_scsih_scsi_lookup_find_by_scmd(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd
969 *scmd)
970{
971 u16 smid;
972 unsigned long flags;
973 int i;
974
975 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
976 smid = 0;
977 for (i = 0; i < ioc->scsiio_depth; i++) {
978 if (ioc->scsi_lookup[i].scmd == scmd) {
979 smid = ioc->scsi_lookup[i].smid;
980 goto out;
981 }
982 }
983 out:
984 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
985 return smid;
986}
987
988/**
989 * _scsih_scsi_lookup_find_by_target - search for matching channel:id
990 * @ioc: per adapter object
991 * @id: target id
992 * @channel: channel
993 * Context: This function will acquire ioc->scsi_lookup_lock.
994 *
995 * This will search for a matching channel:id in the scsi_lookup array,
996 * returning 1 if found.
997 */
998static u8
999_scsih_scsi_lookup_find_by_target(struct MPT3SAS_ADAPTER *ioc, int id,
1000 int channel)
1001{
1002 u8 found;
1003 unsigned long flags;
1004 int i;
1005
1006 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1007 found = 0;
1008 for (i = 0 ; i < ioc->scsiio_depth; i++) {
1009 if (ioc->scsi_lookup[i].scmd &&
1010 (ioc->scsi_lookup[i].scmd->device->id == id &&
1011 ioc->scsi_lookup[i].scmd->device->channel == channel)) {
1012 found = 1;
1013 goto out;
1014 }
1015 }
1016 out:
1017 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1018 return found;
1019}
1020
1021/**
1022 * _scsih_scsi_lookup_find_by_lun - search for matching channel:id:lun
1023 * @ioc: per adapter object
1024 * @id: target id
1025 * @lun: lun number
1026 * @channel: channel
1027 * Context: This function will acquire ioc->scsi_lookup_lock.
1028 *
1029 * This will search for a matching channel:id:lun in the scsi_lookup array,
1030 * returning 1 if found.
1031 */
1032static u8
1033_scsih_scsi_lookup_find_by_lun(struct MPT3SAS_ADAPTER *ioc, int id,
1034 unsigned int lun, int channel)
1035{
1036 u8 found;
1037 unsigned long flags;
1038 int i;
1039
1040 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1041 found = 0;
1042 for (i = 0 ; i < ioc->scsiio_depth; i++) {
1043 if (ioc->scsi_lookup[i].scmd &&
1044 (ioc->scsi_lookup[i].scmd->device->id == id &&
1045 ioc->scsi_lookup[i].scmd->device->channel == channel &&
1046 ioc->scsi_lookup[i].scmd->device->lun == lun)) {
1047 found = 1;
1048 goto out;
1049 }
1050 }
1051 out:
1052 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1053 return found;
1054}
1055
1056
1057static void
1058_scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth)
1059{
1060 struct Scsi_Host *shost = sdev->host;
1061 int max_depth;
1062 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
1063 struct MPT3SAS_DEVICE *sas_device_priv_data;
1064 struct MPT3SAS_TARGET *sas_target_priv_data;
1065 struct _sas_device *sas_device;
1066 unsigned long flags;
1067
1068 max_depth = shost->can_queue;
1069
1070 /* limit max device queue for SATA to 32 */
1071 sas_device_priv_data = sdev->hostdata;
1072 if (!sas_device_priv_data)
1073 goto not_sata;
1074 sas_target_priv_data = sas_device_priv_data->sas_target;
1075 if (!sas_target_priv_data)
1076 goto not_sata;
1077 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))
1078 goto not_sata;
1079 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1080 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
1081 sas_device_priv_data->sas_target->sas_address);
1082 if (sas_device && sas_device->device_info &
1083 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1084 max_depth = MPT3SAS_SATA_QUEUE_DEPTH;
1085 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1086
1087 not_sata:
1088
1089 if (!sdev->tagged_supported)
1090 max_depth = 1;
1091 if (qdepth > max_depth)
1092 qdepth = max_depth;
1093 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1094}
1095
1096/**
1097 * _scsih_change_queue_depth - setting device queue depth
1098 * @sdev: scsi device struct
1099 * @qdepth: requested queue depth
1100 * @reason: SCSI_QDEPTH_DEFAULT/SCSI_QDEPTH_QFULL/SCSI_QDEPTH_RAMP_UP
1101 * (see include/scsi/scsi_host.h for definition)
1102 *
1103 * Returns queue depth.
1104 */
1105static int
1106_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1107{
1108 if (reason == SCSI_QDEPTH_DEFAULT || reason == SCSI_QDEPTH_RAMP_UP)
1109 _scsih_adjust_queue_depth(sdev, qdepth);
1110 else if (reason == SCSI_QDEPTH_QFULL)
1111 scsi_track_queue_full(sdev, qdepth);
1112 else
1113 return -EOPNOTSUPP;
1114
1115 if (sdev->inquiry_len > 7)
1116 sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), " \
1117 "simple(%d), ordered(%d), scsi_level(%d), cmd_que(%d)\n",
1118 sdev->queue_depth, sdev->tagged_supported, sdev->simple_tags,
1119 sdev->ordered_tags, sdev->scsi_level,
1120 (sdev->inquiry[7] & 2) >> 1);
1121
1122 return sdev->queue_depth;
1123}
1124
1125/**
1126 * _scsih_change_queue_type - changing device queue tag type
1127 * @sdev: scsi device struct
1128 * @tag_type: requested tag type
1129 *
1130 * Returns queue tag type.
1131 */
1132static int
1133_scsih_change_queue_type(struct scsi_device *sdev, int tag_type)
1134{
1135 if (sdev->tagged_supported) {
1136 scsi_set_tag_type(sdev, tag_type);
1137 if (tag_type)
1138 scsi_activate_tcq(sdev, sdev->queue_depth);
1139 else
1140 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1141 } else
1142 tag_type = 0;
1143
1144 return tag_type;
1145}
1146
1147
1148/**
1149 * _scsih_target_alloc - target add routine
1150 * @starget: scsi target struct
1151 *
1152 * Returns 0 if ok. Any other return is assumed to be an error and
1153 * the device is ignored.
1154 */
1155static int
1156_scsih_target_alloc(struct scsi_target *starget)
1157{
1158 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1159 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
1160 struct MPT3SAS_TARGET *sas_target_priv_data;
1161 struct _sas_device *sas_device;
1162 struct _raid_device *raid_device;
1163 unsigned long flags;
1164 struct sas_rphy *rphy;
1165
1166 sas_target_priv_data = kzalloc(sizeof(struct scsi_target), GFP_KERNEL);
1167 if (!sas_target_priv_data)
1168 return -ENOMEM;
1169
1170 starget->hostdata = sas_target_priv_data;
1171 sas_target_priv_data->starget = starget;
1172 sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE;
1173
1174 /* RAID volumes */
1175 if (starget->channel == RAID_CHANNEL) {
1176 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1177 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1178 starget->channel);
1179 if (raid_device) {
1180 sas_target_priv_data->handle = raid_device->handle;
1181 sas_target_priv_data->sas_address = raid_device->wwid;
1182 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME;
1183 raid_device->starget = starget;
1184 }
1185 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1186 return 0;
1187 }
1188
1189 /* sas/sata devices */
1190 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1191 rphy = dev_to_rphy(starget->dev.parent);
1192 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
1193 rphy->identify.sas_address);
1194
1195 if (sas_device) {
1196 sas_target_priv_data->handle = sas_device->handle;
1197 sas_target_priv_data->sas_address = sas_device->sas_address;
1198 sas_device->starget = starget;
1199 sas_device->id = starget->id;
1200 sas_device->channel = starget->channel;
1201 if (test_bit(sas_device->handle, ioc->pd_handles))
1202 sas_target_priv_data->flags |=
1203 MPT_TARGET_FLAGS_RAID_COMPONENT;
1204 if (sas_device->fast_path)
1205 sas_target_priv_data->flags |= MPT_TARGET_FASTPATH_IO;
1206 }
1207 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1208
1209 return 0;
1210}
1211
1212/**
1213 * _scsih_target_destroy - target destroy routine
1214 * @starget: scsi target struct
1215 *
1216 * Returns nothing.
1217 */
1218static void
1219_scsih_target_destroy(struct scsi_target *starget)
1220{
1221 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1222 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
1223 struct MPT3SAS_TARGET *sas_target_priv_data;
1224 struct _sas_device *sas_device;
1225 struct _raid_device *raid_device;
1226 unsigned long flags;
1227 struct sas_rphy *rphy;
1228
1229 sas_target_priv_data = starget->hostdata;
1230 if (!sas_target_priv_data)
1231 return;
1232
1233 if (starget->channel == RAID_CHANNEL) {
1234 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1235 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1236 starget->channel);
1237 if (raid_device) {
1238 raid_device->starget = NULL;
1239 raid_device->sdev = NULL;
1240 }
1241 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1242 goto out;
1243 }
1244
1245 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1246 rphy = dev_to_rphy(starget->dev.parent);
1247 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
1248 rphy->identify.sas_address);
1249 if (sas_device && (sas_device->starget == starget) &&
1250 (sas_device->id == starget->id) &&
1251 (sas_device->channel == starget->channel))
1252 sas_device->starget = NULL;
1253
1254 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1255
1256 out:
1257 kfree(sas_target_priv_data);
1258 starget->hostdata = NULL;
1259}
1260
1261/**
1262 * _scsih_slave_alloc - device add routine
1263 * @sdev: scsi device struct
1264 *
1265 * Returns 0 if ok. Any other return is assumed to be an error and
1266 * the device is ignored.
1267 */
1268static int
1269_scsih_slave_alloc(struct scsi_device *sdev)
1270{
1271 struct Scsi_Host *shost;
1272 struct MPT3SAS_ADAPTER *ioc;
1273 struct MPT3SAS_TARGET *sas_target_priv_data;
1274 struct MPT3SAS_DEVICE *sas_device_priv_data;
1275 struct scsi_target *starget;
1276 struct _raid_device *raid_device;
b65cfedf 1277 struct _sas_device *sas_device;
f92363d1
SR		 1278 unsigned long flags;
1279
1280 sas_device_priv_data = kzalloc(sizeof(struct scsi_device), GFP_KERNEL);
1281 if (!sas_device_priv_data)
1282 return -ENOMEM;
1283
1284 sas_device_priv_data->lun = sdev->lun;
1285 sas_device_priv_data->flags = MPT_DEVICE_FLAGS_INIT;
1286
1287 starget = scsi_target(sdev);
1288 sas_target_priv_data = starget->hostdata;
1289 sas_target_priv_data->num_luns++;
1290 sas_device_priv_data->sas_target = sas_target_priv_data;
1291 sdev->hostdata = sas_device_priv_data;
1292 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT))
1293 sdev->no_uld_attach = 1;
1294
1295 shost = dev_to_shost(&starget->dev);
1296 ioc = shost_priv(shost);
1297 if (starget->channel == RAID_CHANNEL) {
1298 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1299 raid_device = _scsih_raid_device_find_by_id(ioc,
1300 starget->id, starget->channel);
1301 if (raid_device)
1302 raid_device->sdev = sdev; /* raid is single lun */
1303 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1304 }
1305
b65cfedf
SR		 1306 if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) {
1307 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1308 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
1309 sas_target_priv_data->sas_address);
1310 if (sas_device && (sas_device->starget == NULL)) {
1311 sdev_printk(KERN_INFO, sdev,
1312 "%s : sas_device->starget set to starget @ %d\n",
1313 __func__, __LINE__);
1314 sas_device->starget = starget;
1315 }
1316 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1317 }
1318
f92363d1
SR		 1319 return 0;
1320}
1321
1322/**
1323 * _scsih_slave_destroy - device destroy routine
1324 * @sdev: scsi device struct
1325 *
1326 * Returns nothing.
1327 */
1328static void
1329_scsih_slave_destroy(struct scsi_device *sdev)
1330{
1331 struct MPT3SAS_TARGET *sas_target_priv_data;
1332 struct scsi_target *starget;
1333 struct Scsi_Host *shost;
1334 struct MPT3SAS_ADAPTER *ioc;
1335 struct _sas_device *sas_device;
1336 unsigned long flags;
1337
1338 if (!sdev->hostdata)
1339 return;
1340
1341 starget = scsi_target(sdev);
1342 sas_target_priv_data = starget->hostdata;
1343 sas_target_priv_data->num_luns--;
1344
1345 shost = dev_to_shost(&starget->dev);
1346 ioc = shost_priv(shost);
1347
1348 if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) {
1349 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1350 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
1351 sas_target_priv_data->sas_address);
1352 if (sas_device && !sas_target_priv_data->num_luns)
1353 sas_device->starget = NULL;
1354 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1355 }
1356
1357 kfree(sdev->hostdata);
1358 sdev->hostdata = NULL;
1359}
1360
1361/**
1362 * _scsih_display_sata_capabilities - sata capabilities
1363 * @ioc: per adapter object
1364 * @handle: device handle
1365 * @sdev: scsi device struct
1366 */
1367static void
1368_scsih_display_sata_capabilities(struct MPT3SAS_ADAPTER *ioc,
1369 u16 handle, struct scsi_device *sdev)
1370{
1371 Mpi2ConfigReply_t mpi_reply;
1372 Mpi2SasDevicePage0_t sas_device_pg0;
1373 u32 ioc_status;
1374 u16 flags;
1375 u32 device_info;
1376
1377 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
1378 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
1379 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
1380 ioc->name, __FILE__, __LINE__, __func__);
1381 return;
1382 }
1383
1384 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1385 MPI2_IOCSTATUS_MASK;
1386 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
1387 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
1388 ioc->name, __FILE__, __LINE__, __func__);
1389 return;
1390 }
1391
1392 flags = le16_to_cpu(sas_device_pg0.Flags);
1393 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
1394
1395 sdev_printk(KERN_INFO, sdev,
1396 "atapi(%s), ncq(%s), asyn_notify(%s), smart(%s), fua(%s), "
1397 "sw_preserve(%s)\n",
1398 (device_info & MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? "y" : "n",
1399 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED) ? "y" : "n",
1400 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY) ? "y" :
1401 "n",
1402 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SMART_SUPPORTED) ? "y" : "n",
1403 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED) ? "y" : "n",
1404 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SW_PRESERVE) ? "y" : "n");
1405}
1406
1407/*
1408 * raid transport support -
1409 * Enabled for SLES11 and newer, in older kernels the driver will panic when
1410 * unloading the driver followed by a load - I beleive that the subroutine
1411 * raid_class_release() is not cleaning up properly.
1412 */
1413
1414/**
1415 * _scsih_is_raid - return boolean indicating device is raid volume
1416 * @dev the device struct object
1417 */
1418static int
1419_scsih_is_raid(struct device *dev)
1420{
1421 struct scsi_device *sdev = to_scsi_device(dev);
1422
1423 return (sdev->channel == RAID_CHANNEL) ? 1 : 0;
1424}
1425
1426/**
1427 * _scsih_get_resync - get raid volume resync percent complete
1428 * @dev the device struct object
1429 */
1430static void
1431_scsih_get_resync(struct device *dev)
1432{
1433 struct scsi_device *sdev = to_scsi_device(dev);
1434 struct MPT3SAS_ADAPTER *ioc = shost_priv(sdev->host);
1435 static struct _raid_device *raid_device;
1436 unsigned long flags;
1437 Mpi2RaidVolPage0_t vol_pg0;
1438 Mpi2ConfigReply_t mpi_reply;
1439 u32 volume_status_flags;
1440 u8 percent_complete;
1441 u16 handle;
1442
1443 percent_complete = 0;
1444 handle = 0;
1445 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1446 raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
1447 sdev->channel);
1448 if (raid_device) {
1449 handle = raid_device->handle;
1450 percent_complete = raid_device->percent_complete;
1451 }
1452 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1453
1454 if (!handle)
1455 goto out;
1456
1457 if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
1458 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
1459 sizeof(Mpi2RaidVolPage0_t))) {
1460 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
1461 ioc->name, __FILE__, __LINE__, __func__);
1462 percent_complete = 0;
1463 goto out;
1464 }
1465
1466 volume_status_flags = le32_to_cpu(vol_pg0.VolumeStatusFlags);
1467 if (!(volume_status_flags &
1468 MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS))
1469 percent_complete = 0;
1470
1471 out:
1472 raid_set_resync(mpt3sas_raid_template, dev, percent_complete);
1473}
1474
1475/**
1476 * _scsih_get_state - get raid volume level
1477 * @dev the device struct object
1478 */
1479static void
1480_scsih_get_state(struct device *dev)
1481{
1482 struct scsi_device *sdev = to_scsi_device(dev);
1483 struct MPT3SAS_ADAPTER *ioc = shost_priv(sdev->host);
1484 static struct _raid_device *raid_device;
1485 unsigned long flags;
1486 Mpi2RaidVolPage0_t vol_pg0;
1487 Mpi2ConfigReply_t mpi_reply;
1488 u32 volstate;
1489 enum raid_state state = RAID_STATE_UNKNOWN;
1490 u16 handle = 0;
1491
1492 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1493 raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
1494 sdev->channel);
1495 if (raid_device)
1496 handle = raid_device->handle;
1497 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1498
1499 if (!raid_device)
1500 goto out;
1501
1502 if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
1503 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
1504 sizeof(Mpi2RaidVolPage0_t))) {
1505 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
1506 ioc->name, __FILE__, __LINE__, __func__);
1507 goto out;
1508 }
1509
1510 volstate = le32_to_cpu(vol_pg0.VolumeStatusFlags);
1511 if (volstate & MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS) {
1512 state = RAID_STATE_RESYNCING;
1513 goto out;
1514 }
1515
1516 switch (vol_pg0.VolumeState) {
1517 case MPI2_RAID_VOL_STATE_OPTIMAL:
1518 case MPI2_RAID_VOL_STATE_ONLINE:
1519 state = RAID_STATE_ACTIVE;
1520 break;
1521 case MPI2_RAID_VOL_STATE_DEGRADED:
1522 state = RAID_STATE_DEGRADED;
1523 break;
1524 case MPI2_RAID_VOL_STATE_FAILED:
1525 case MPI2_RAID_VOL_STATE_MISSING:
1526 state = RAID_STATE_OFFLINE;
1527 break;
1528 }
1529 out:
1530 raid_set_state(mpt3sas_raid_template, dev, state);
1531}
1532
1533/**
1534 * _scsih_set_level - set raid level
1535 * @sdev: scsi device struct
1536 * @volume_type: volume type
1537 */
1538static void
1539_scsih_set_level(struct scsi_device *sdev, u8 volume_type)
1540{
1541 enum raid_level level = RAID_LEVEL_UNKNOWN;
1542
1543 switch (volume_type) {
1544 case MPI2_RAID_VOL_TYPE_RAID0:
1545 level = RAID_LEVEL_0;
1546 break;
1547 case MPI2_RAID_VOL_TYPE_RAID10:
1548 level = RAID_LEVEL_10;
1549 break;
1550 case MPI2_RAID_VOL_TYPE_RAID1E:
1551 level = RAID_LEVEL_1E;
1552 break;
1553 case MPI2_RAID_VOL_TYPE_RAID1:
1554 level = RAID_LEVEL_1;
1555 break;
1556 }
1557
1558 raid_set_level(mpt3sas_raid_template, &sdev->sdev_gendev, level);
1559}
1560
1561
1562/**
1563 * _scsih_get_volume_capabilities - volume capabilities
1564 * @ioc: per adapter object
1565 * @sas_device: the raid_device object
1566 *
1567 * Returns 0 for success, else 1
1568 */
1569static int
1570_scsih_get_volume_capabilities(struct MPT3SAS_ADAPTER *ioc,
1571 struct _raid_device *raid_device)
1572{
1573 Mpi2RaidVolPage0_t *vol_pg0;
1574 Mpi2RaidPhysDiskPage0_t pd_pg0;
1575 Mpi2SasDevicePage0_t sas_device_pg0;
1576 Mpi2ConfigReply_t mpi_reply;
1577 u16 sz;
1578 u8 num_pds;
1579
1580 if ((mpt3sas_config_get_number_pds(ioc, raid_device->handle,
1581 &num_pds)) || !num_pds) {
1582 dfailprintk(ioc, pr_warn(MPT3SAS_FMT
1583 "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
1584 __func__));
1585 return 1;
1586 }
1587
1588 raid_device->num_pds = num_pds;
1589 sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
1590 sizeof(Mpi2RaidVol0PhysDisk_t));
1591 vol_pg0 = kzalloc(sz, GFP_KERNEL);
1592 if (!vol_pg0) {
1593 dfailprintk(ioc, pr_warn(MPT3SAS_FMT
1594 "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
1595 __func__));
1596 return 1;
1597 }
1598
1599 if ((mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
1600 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
1601 dfailprintk(ioc, pr_warn(MPT3SAS_FMT
1602 "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
1603 __func__));
1604 kfree(vol_pg0);
1605 return 1;
1606 }
1607
1608 raid_device->volume_type = vol_pg0->VolumeType;
1609
1610 /* figure out what the underlying devices are by
1611 * obtaining the device_info bits for the 1st device
1612 */
1613 if (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
1614 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
1615 vol_pg0->PhysDisk[0].PhysDiskNum))) {
1616 if (!(mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
1617 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
1618 le16_to_cpu(pd_pg0.DevHandle)))) {
1619 raid_device->device_info =
1620 le32_to_cpu(sas_device_pg0.DeviceInfo);
1621 }
1622 }
1623
1624 kfree(vol_pg0);
1625 return 0;
1626}
1627
1628
1629
1630/**
1631 * _scsih_enable_tlr - setting TLR flags
1632 * @ioc: per adapter object
1633 * @sdev: scsi device struct
1634 *
1635 * Enabling Transaction Layer Retries for tape devices when
1636 * vpd page 0x90 is present
1637 *
1638 */
1639static void
1640_scsih_enable_tlr(struct MPT3SAS_ADAPTER *ioc, struct scsi_device *sdev)
1641{
1642
1643 /* only for TAPE */
1644 if (sdev->type != TYPE_TAPE)
1645 return;
1646
1647 if (!(ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR))
1648 return;
1649
1650 sas_enable_tlr(sdev);
1651 sdev_printk(KERN_INFO, sdev, "TLR %s\n",
1652 sas_is_tlr_enabled(sdev) ? "Enabled" : "Disabled");
1653 return;
1654
1655}
1656
1657/**
1658 * _scsih_slave_configure - device configure routine.
1659 * @sdev: scsi device struct
1660 *
1661 * Returns 0 if ok. Any other return is assumed to be an error and
1662 * the device is ignored.
1663 */
1664static int
1665_scsih_slave_configure(struct scsi_device *sdev)
1666{
1667 struct Scsi_Host *shost = sdev->host;
1668 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
1669 struct MPT3SAS_DEVICE *sas_device_priv_data;
1670 struct MPT3SAS_TARGET *sas_target_priv_data;
1671 struct _sas_device *sas_device;
1672 struct _raid_device *raid_device;
1673 unsigned long flags;
1674 int qdepth;
1675 u8 ssp_target = 0;
1676 char *ds = "";
1677 char *r_level = "";
1678 u16 handle, volume_handle = 0;
1679 u64 volume_wwid = 0;
1680
1681 qdepth = 1;
1682 sas_device_priv_data = sdev->hostdata;
1683 sas_device_priv_data->configured_lun = 1;
1684 sas_device_priv_data->flags &= ~MPT_DEVICE_FLAGS_INIT;
1685 sas_target_priv_data = sas_device_priv_data->sas_target;
1686 handle = sas_target_priv_data->handle;
1687
1688 /* raid volume handling */
1689 if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME) {
1690
1691 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1692 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
1693 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1694 if (!raid_device) {
1695 dfailprintk(ioc, pr_warn(MPT3SAS_FMT
1696 "failure at %s:%d/%s()!\n", ioc->name, __FILE__,
1697 __LINE__, __func__));
1698 return 1;
1699 }
1700
1701 if (_scsih_get_volume_capabilities(ioc, raid_device)) {
1702 dfailprintk(ioc, pr_warn(MPT3SAS_FMT
1703 "failure at %s:%d/%s()!\n", ioc->name, __FILE__,
1704 __LINE__, __func__));
1705 return 1;
1706 }
1707
1708
1709 /* RAID Queue Depth Support
1710 * IS volume = underlying qdepth of drive type, either
1711 * MPT3SAS_SAS_QUEUE_DEPTH or MPT3SAS_SATA_QUEUE_DEPTH
1712 * IM/IME/R10 = 128 (MPT3SAS_RAID_QUEUE_DEPTH)
1713 */
1714 if (raid_device->device_info &
1715 MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
1716 qdepth = MPT3SAS_SAS_QUEUE_DEPTH;
1717 ds = "SSP";
1718 } else {
1719 qdepth = MPT3SAS_SATA_QUEUE_DEPTH;
1720 if (raid_device->device_info &
1721 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1722 ds = "SATA";
1723 else
1724 ds = "STP";
1725 }
1726
1727 switch (raid_device->volume_type) {
1728 case MPI2_RAID_VOL_TYPE_RAID0:
1729 r_level = "RAID0";
1730 break;
1731 case MPI2_RAID_VOL_TYPE_RAID1E:
1732 qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
1733 if (ioc->manu_pg10.OEMIdentifier &&
1734 (le32_to_cpu(ioc->manu_pg10.GenericFlags0) &
1735 MFG10_GF0_R10_DISPLAY) &&
1736 !(raid_device->num_pds % 2))
1737 r_level = "RAID10";
1738 else
1739 r_level = "RAID1E";
1740 break;
1741 case MPI2_RAID_VOL_TYPE_RAID1:
1742 qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
1743 r_level = "RAID1";
1744 break;
1745 case MPI2_RAID_VOL_TYPE_RAID10:
1746 qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
1747 r_level = "RAID10";
1748 break;
1749 case MPI2_RAID_VOL_TYPE_UNKNOWN:
1750 default:
1751 qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
1752 r_level = "RAIDX";
1753 break;
1754 }
1755
1756 sdev_printk(KERN_INFO, sdev,
1757 "%s: handle(0x%04x), wwid(0x%016llx), pd_count(%d), type(%s)\n",
1758 r_level, raid_device->handle,
1759 (unsigned long long)raid_device->wwid,
1760 raid_device->num_pds, ds);
1761
1762
1763 _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
1764
1765/* raid transport support */
1766 _scsih_set_level(sdev, raid_device->volume_type);
1767 return 0;
1768 }
1769
1770 /* non-raid handling */
1771 if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1772 if (mpt3sas_config_get_volume_handle(ioc, handle,
1773 &volume_handle)) {
1774 dfailprintk(ioc, pr_warn(MPT3SAS_FMT
1775 "failure at %s:%d/%s()!\n", ioc->name,
1776 __FILE__, __LINE__, __func__));
1777 return 1;
1778 }
1779 if (volume_handle && mpt3sas_config_get_volume_wwid(ioc,
1780 volume_handle, &volume_wwid)) {
1781 dfailprintk(ioc, pr_warn(MPT3SAS_FMT
1782 "failure at %s:%d/%s()!\n", ioc->name,
1783 __FILE__, __LINE__, __func__));
1784 return 1;
1785 }
1786 }
1787
1788 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1789 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
1790 sas_device_priv_data->sas_target->sas_address);
1791 if (!sas_device) {
1792 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1793 dfailprintk(ioc, pr_warn(MPT3SAS_FMT
1794 "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
1795 __func__));
1796 return 1;
1797 }
1798
1799 sas_device->volume_handle = volume_handle;
1800 sas_device->volume_wwid = volume_wwid;
1801 if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
1802 qdepth = MPT3SAS_SAS_QUEUE_DEPTH;
1803 ssp_target = 1;
1804 ds = "SSP";
1805 } else {
1806 qdepth = MPT3SAS_SATA_QUEUE_DEPTH;
1807 if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET)
1808 ds = "STP";
1809 else if (sas_device->device_info &
1810 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1811 ds = "SATA";
1812 }
1813
1814 sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), " \
1815 "sas_addr(0x%016llx), phy(%d), device_name(0x%016llx)\n",
1816 ds, handle, (unsigned long long)sas_device->sas_address,
1817 sas_device->phy, (unsigned long long)sas_device->device_name);
1818 sdev_printk(KERN_INFO, sdev,
1819 "%s: enclosure_logical_id(0x%016llx), slot(%d)\n",
1820 ds, (unsigned long long)
1821 sas_device->enclosure_logical_id, sas_device->slot);
1822
1823 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1824
1825 if (!ssp_target)
1826 _scsih_display_sata_capabilities(ioc, handle, sdev);
1827
1828
1829 _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
1830
1831 if (ssp_target) {
1832 sas_read_port_mode_page(sdev);
1833 _scsih_enable_tlr(ioc, sdev);
1834 }
1835
1836 return 0;
1837}
1838
1839/**
1840 * _scsih_bios_param - fetch head, sector, cylinder info for a disk
1841 * @sdev: scsi device struct
1842 * @bdev: pointer to block device context
1843 * @capacity: device size (in 512 byte sectors)
1844 * @params: three element array to place output:
1845 * params[0] number of heads (max 255)
1846 * params[1] number of sectors (max 63)
1847 * params[2] number of cylinders
1848 *
1849 * Return nothing.
1850 */
1851static int
1852_scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev,
1853 sector_t capacity, int params[])
1854{
1855 int heads;
1856 int sectors;
1857 sector_t cylinders;
1858 ulong dummy;
1859
1860 heads = 64;
1861 sectors = 32;
1862
1863 dummy = heads * sectors;
1864 cylinders = capacity;
1865 sector_div(cylinders, dummy);
1866
1867 /*
1868 * Handle extended translation size for logical drives
1869 * > 1Gb
1870 */
1871 if ((ulong)capacity >= 0x200000) {
1872 heads = 255;
1873 sectors = 63;
1874 dummy = heads * sectors;
1875 cylinders = capacity;
1876 sector_div(cylinders, dummy);
1877 }
1878
1879 /* return result */
1880 params[0] = heads;
1881 params[1] = sectors;
1882 params[2] = cylinders;
1883
1884 return 0;
1885}
1886
1887/**
1888 * _scsih_response_code - translation of device response code
1889 * @ioc: per adapter object
1890 * @response_code: response code returned by the device
1891 *
1892 * Return nothing.
1893 */
1894static void
1895_scsih_response_code(struct MPT3SAS_ADAPTER *ioc, u8 response_code)
1896{
1897 char *desc;
1898
1899 switch (response_code) {
1900 case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE:
1901 desc = "task management request completed";
1902 break;
1903 case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME:
1904 desc = "invalid frame";
1905 break;
1906 case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
1907 desc = "task management request not supported";
1908 break;
1909 case MPI2_SCSITASKMGMT_RSP_TM_FAILED:
1910 desc = "task management request failed";
1911 break;
1912 case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED:
1913 desc = "task management request succeeded";
1914 break;
1915 case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN:
1916 desc = "invalid lun";
1917 break;
1918 case 0xA:
1919 desc = "overlapped tag attempted";
1920 break;
1921 case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
1922 desc = "task queued, however not sent to target";
1923 break;
1924 default:
1925 desc = "unknown";
1926 break;
1927 }
1928 pr_warn(MPT3SAS_FMT "response_code(0x%01x): %s\n",
1929 ioc->name, response_code, desc);
1930}
1931
1932/**
1933 * _scsih_tm_done - tm completion routine
1934 * @ioc: per adapter object
1935 * @smid: system request message index
1936 * @msix_index: MSIX table index supplied by the OS
1937 * @reply: reply message frame(lower 32bit addr)
1938 * Context: none.
1939 *
1940 * The callback handler when using scsih_issue_tm.
1941 *
1942 * Return 1 meaning mf should be freed from _base_interrupt
1943 * 0 means the mf is freed from this function.
1944 */
1945static u8
1946_scsih_tm_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
1947{
1948 MPI2DefaultReply_t *mpi_reply;
1949
1950 if (ioc->tm_cmds.status == MPT3_CMD_NOT_USED)
1951 return 1;
1952 if (ioc->tm_cmds.smid != smid)
1953 return 1;
1954 mpt3sas_base_flush_reply_queues(ioc);
1955 ioc->tm_cmds.status |= MPT3_CMD_COMPLETE;
1956 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
1957 if (mpi_reply) {
1958 memcpy(ioc->tm_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
1959 ioc->tm_cmds.status |= MPT3_CMD_REPLY_VALID;
1960 }
1961 ioc->tm_cmds.status &= ~MPT3_CMD_PENDING;
1962 complete(&ioc->tm_cmds.done);
1963 return 1;
1964}
1965
1966/**
1967 * mpt3sas_scsih_set_tm_flag - set per target tm_busy
1968 * @ioc: per adapter object
1969 * @handle: device handle
1970 *
1971 * During taskmangement request, we need to freeze the device queue.
1972 */
1973void
1974mpt3sas_scsih_set_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle)
1975{
1976 struct MPT3SAS_DEVICE *sas_device_priv_data;
1977 struct scsi_device *sdev;
1978 u8 skip = 0;
1979
1980 shost_for_each_device(sdev, ioc->shost) {
1981 if (skip)
1982 continue;
1983 sas_device_priv_data = sdev->hostdata;
1984 if (!sas_device_priv_data)
1985 continue;
1986 if (sas_device_priv_data->sas_target->handle == handle) {
1987 sas_device_priv_data->sas_target->tm_busy = 1;
1988 skip = 1;
1989 ioc->ignore_loginfos = 1;
1990 }
1991 }
1992}
1993
1994/**
1995 * mpt3sas_scsih_clear_tm_flag - clear per target tm_busy
1996 * @ioc: per adapter object
1997 * @handle: device handle
1998 *
1999 * During taskmangement request, we need to freeze the device queue.
2000 */
2001void
2002mpt3sas_scsih_clear_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle)
2003{
2004 struct MPT3SAS_DEVICE *sas_device_priv_data;
2005 struct scsi_device *sdev;
2006 u8 skip = 0;
2007
2008 shost_for_each_device(sdev, ioc->shost) {
2009 if (skip)
2010 continue;
2011 sas_device_priv_data = sdev->hostdata;
2012 if (!sas_device_priv_data)
2013 continue;
2014 if (sas_device_priv_data->sas_target->handle == handle) {
2015 sas_device_priv_data->sas_target->tm_busy = 0;
2016 skip = 1;
2017 ioc->ignore_loginfos = 0;
2018 }
2019 }
2020}
2021
2022/**
2023 * mpt3sas_scsih_issue_tm - main routine for sending tm requests
2024 * @ioc: per adapter struct
2025 * @device_handle: device handle
2026 * @channel: the channel assigned by the OS
2027 * @id: the id assigned by the OS
2028 * @lun: lun number
2029 * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
2030 * @smid_task: smid assigned to the task
2031 * @timeout: timeout in seconds
2032 * @serial_number: the serial_number from scmd
2033 * @m_type: TM_MUTEX_ON or TM_MUTEX_OFF
2034 * Context: user
2035 *
2036 * A generic API for sending task management requests to firmware.
2037 *
2038 * The callback index is set inside `ioc->tm_cb_idx`.
2039 *
2040 * Return SUCCESS or FAILED.
2041 */
2042int
2043mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, uint channel,
2044 uint id, uint lun, u8 type, u16 smid_task, ulong timeout,
2045 unsigned long serial_number, enum mutex_type m_type)
2046{
2047 Mpi2SCSITaskManagementRequest_t *mpi_request;
2048 Mpi2SCSITaskManagementReply_t *mpi_reply;
2049 u16 smid = 0;
2050 u32 ioc_state;
2051 unsigned long timeleft;
2052 struct scsiio_tracker *scsi_lookup = NULL;
2053 int rc;
2054
2055 if (m_type == TM_MUTEX_ON)
2056 mutex_lock(&ioc->tm_cmds.mutex);
2057 if (ioc->tm_cmds.status != MPT3_CMD_NOT_USED) {
2058 pr_info(MPT3SAS_FMT "%s: tm_cmd busy!!!\n",
2059 __func__, ioc->name);
2060 rc = FAILED;
2061 goto err_out;
2062 }
2063
2064 if (ioc->shost_recovery || ioc->remove_host ||
2065 ioc->pci_error_recovery) {
2066 pr_info(MPT3SAS_FMT "%s: host reset in progress!\n",
2067 __func__, ioc->name);
2068 rc = FAILED;
2069 goto err_out;
2070 }
2071
2072 ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
2073 if (ioc_state & MPI2_DOORBELL_USED) {
2074 dhsprintk(ioc, pr_info(MPT3SAS_FMT
2075 "unexpected doorbell active!\n", ioc->name));
2076 rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2077 FORCE_BIG_HAMMER);
2078 rc = (!rc) ? SUCCESS : FAILED;
2079 goto err_out;
2080 }
2081
2082 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
2083 mpt3sas_base_fault_info(ioc, ioc_state &
2084 MPI2_DOORBELL_DATA_MASK);
2085 rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2086 FORCE_BIG_HAMMER);
2087 rc = (!rc) ? SUCCESS : FAILED;
2088 goto err_out;
2089 }
2090
2091 smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_cb_idx);
2092 if (!smid) {
2093 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
2094 ioc->name, __func__);
2095 rc = FAILED;
2096 goto err_out;
2097 }
2098
2099 if (type == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
2100 scsi_lookup = &ioc->scsi_lookup[smid_task - 1];
2101
2102 dtmprintk(ioc, pr_info(MPT3SAS_FMT
2103 "sending tm: handle(0x%04x), task_type(0x%02x), smid(%d)\n",
2104 ioc->name, handle, type, smid_task));
2105 ioc->tm_cmds.status = MPT3_CMD_PENDING;
2106 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
2107 ioc->tm_cmds.smid = smid;
2108 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
2109 memset(ioc->tm_cmds.reply, 0, sizeof(Mpi2SCSITaskManagementReply_t));
2110 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
2111 mpi_request->DevHandle = cpu_to_le16(handle);
2112 mpi_request->TaskType = type;
2113 mpi_request->TaskMID = cpu_to_le16(smid_task);
2114 int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN);
2115 mpt3sas_scsih_set_tm_flag(ioc, handle);
2116 init_completion(&ioc->tm_cmds.done);
2117 mpt3sas_base_put_smid_hi_priority(ioc, smid);
2118 timeleft = wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
2119 if (!(ioc->tm_cmds.status & MPT3_CMD_COMPLETE)) {
2120 pr_err(MPT3SAS_FMT "%s: timeout\n",
2121 ioc->name, __func__);
2122 _debug_dump_mf(mpi_request,
2123 sizeof(Mpi2SCSITaskManagementRequest_t)/4);
2124 if (!(ioc->tm_cmds.status & MPT3_CMD_RESET)) {
2125 rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2126 FORCE_BIG_HAMMER);
2127 rc = (!rc) ? SUCCESS : FAILED;
2128 ioc->tm_cmds.status = MPT3_CMD_NOT_USED;
2129 mpt3sas_scsih_clear_tm_flag(ioc, handle);
2130 goto err_out;
2131 }
2132 }
2133
2134 if (ioc->tm_cmds.status & MPT3_CMD_REPLY_VALID) {
2135 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
2136 mpi_reply = ioc->tm_cmds.reply;
2137 dtmprintk(ioc, pr_info(MPT3SAS_FMT "complete tm: " \
2138 "ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n",
2139 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
2140 le32_to_cpu(mpi_reply->IOCLogInfo),
2141 le32_to_cpu(mpi_reply->TerminationCount)));
2142 if (ioc->logging_level & MPT_DEBUG_TM) {
2143 _scsih_response_code(ioc, mpi_reply->ResponseCode);
2144 if (mpi_reply->IOCStatus)
2145 _debug_dump_mf(mpi_request,
2146 sizeof(Mpi2SCSITaskManagementRequest_t)/4);
2147 }
2148 }
2149
2150 switch (type) {
2151 case MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
2152 rc = SUCCESS;
2153 if (scsi_lookup->scmd == NULL)
2154 break;
2155 rc = FAILED;
2156 break;
2157
2158 case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
2159 if (_scsih_scsi_lookup_find_by_target(ioc, id, channel))
2160 rc = FAILED;
2161 else
2162 rc = SUCCESS;
2163 break;
2164 case MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET:
2165 case MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET:
2166 if (_scsih_scsi_lookup_find_by_lun(ioc, id, lun, channel))
2167 rc = FAILED;
2168 else
2169 rc = SUCCESS;
2170 break;
2171 case MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK:
2172 rc = SUCCESS;
2173 break;
2174 default:
2175 rc = FAILED;
2176 break;
2177 }
2178
2179 mpt3sas_scsih_clear_tm_flag(ioc, handle);
2180 ioc->tm_cmds.status = MPT3_CMD_NOT_USED;
2181 if (m_type == TM_MUTEX_ON)
2182 mutex_unlock(&ioc->tm_cmds.mutex);
2183
2184 return rc;
2185
2186 err_out:
2187 if (m_type == TM_MUTEX_ON)
2188 mutex_unlock(&ioc->tm_cmds.mutex);
2189 return rc;
2190}
2191
2192/**
2193 * _scsih_tm_display_info - displays info about the device
2194 * @ioc: per adapter struct
2195 * @scmd: pointer to scsi command object
2196 *
2197 * Called by task management callback handlers.
2198 */
2199static void
2200_scsih_tm_display_info(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd)
2201{
2202 struct scsi_target *starget = scmd->device->sdev_target;
2203 struct MPT3SAS_TARGET *priv_target = starget->hostdata;
2204 struct _sas_device *sas_device = NULL;
2205 unsigned long flags;
2206 char *device_str = NULL;
2207
2208 if (!priv_target)
2209 return;
2210 device_str = "volume";
2211
2212 scsi_print_command(scmd);
2213 if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
2214 starget_printk(KERN_INFO, starget,
2215 "%s handle(0x%04x), %s wwid(0x%016llx)\n",
2216 device_str, priv_target->handle,
2217 device_str, (unsigned long long)priv_target->sas_address);
2218 } else {
2219 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2220 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
2221 priv_target->sas_address);
2222 if (sas_device) {
2223 if (priv_target->flags &
2224 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2225 starget_printk(KERN_INFO, starget,
2226 "volume handle(0x%04x), "
2227 "volume wwid(0x%016llx)\n",
2228 sas_device->volume_handle,
2229 (unsigned long long)sas_device->volume_wwid);
2230 }
2231 starget_printk(KERN_INFO, starget,
2232 "handle(0x%04x), sas_address(0x%016llx), phy(%d)\n",
2233 sas_device->handle,
2234 (unsigned long long)sas_device->sas_address,
2235 sas_device->phy);
2236 starget_printk(KERN_INFO, starget,
2237 "enclosure_logical_id(0x%016llx), slot(%d)\n",
2238 (unsigned long long)sas_device->enclosure_logical_id,
2239 sas_device->slot);
2240 }
2241 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2242 }
2243}
2244
2245/**
2246 * _scsih_abort - eh threads main abort routine
2247 * @scmd: pointer to scsi command object
2248 *
2249 * Returns SUCCESS if command aborted else FAILED
2250 */
2251static int
2252_scsih_abort(struct scsi_cmnd *scmd)
2253{
2254 struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2255 struct MPT3SAS_DEVICE *sas_device_priv_data;
2256 u16 smid;
2257 u16 handle;
2258 int r;
2259
2260 sdev_printk(KERN_INFO, scmd->device,
2261 "attempting task abort! scmd(%p)\n", scmd);
2262 _scsih_tm_display_info(ioc, scmd);
2263
2264 sas_device_priv_data = scmd->device->hostdata;
2265 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2266 sdev_printk(KERN_INFO, scmd->device,
2267 "device been deleted! scmd(%p)\n", scmd);
2268 scmd->result = DID_NO_CONNECT << 16;
2269 scmd->scsi_done(scmd);
2270 r = SUCCESS;
2271 goto out;
2272 }
2273
2274 /* search for the command */
2275 smid = _scsih_scsi_lookup_find_by_scmd(ioc, scmd);
2276 if (!smid) {
2277 scmd->result = DID_RESET << 16;
2278 r = SUCCESS;
2279 goto out;
2280 }
2281
2282 /* for hidden raid components and volumes this is not supported */
2283 if (sas_device_priv_data->sas_target->flags &
2284 MPT_TARGET_FLAGS_RAID_COMPONENT ||
2285 sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_VOLUME) {
2286 scmd->result = DID_RESET << 16;
2287 r = FAILED;
2288 goto out;
2289 }
2290
2291 mpt3sas_halt_firmware(ioc);
2292
2293 handle = sas_device_priv_data->sas_target->handle;
2294 r = mpt3sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2295 scmd->device->id, scmd->device->lun,
2296 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30,
2297 scmd->serial_number, TM_MUTEX_ON);
2298
2299 out:
2300 sdev_printk(KERN_INFO, scmd->device, "task abort: %s scmd(%p)\n",
2301 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2302 return r;
2303}
2304
2305/**
2306 * _scsih_dev_reset - eh threads main device reset routine
2307 * @scmd: pointer to scsi command object
2308 *
2309 * Returns SUCCESS if command aborted else FAILED
2310 */
2311static int
2312_scsih_dev_reset(struct scsi_cmnd *scmd)
2313{
2314 struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2315 struct MPT3SAS_DEVICE *sas_device_priv_data;
2316 struct _sas_device *sas_device;
2317 unsigned long flags;
2318 u16 handle;
2319 int r;
2320
2321 sdev_printk(KERN_INFO, scmd->device,
2322 "attempting device reset! scmd(%p)\n", scmd);
2323 _scsih_tm_display_info(ioc, scmd);
2324
2325 sas_device_priv_data = scmd->device->hostdata;
2326 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2327 sdev_printk(KERN_INFO, scmd->device,
2328 "device been deleted! scmd(%p)\n", scmd);
2329 scmd->result = DID_NO_CONNECT << 16;
2330 scmd->scsi_done(scmd);
2331 r = SUCCESS;
2332 goto out;
2333 }
2334
2335 /* for hidden raid components obtain the volume_handle */
2336 handle = 0;
2337 if (sas_device_priv_data->sas_target->flags &
2338 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2339 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2340 sas_device = _scsih_sas_device_find_by_handle(ioc,
2341 sas_device_priv_data->sas_target->handle);
2342 if (sas_device)
2343 handle = sas_device->volume_handle;
2344 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2345 } else
2346 handle = sas_device_priv_data->sas_target->handle;
2347
2348 if (!handle) {
2349 scmd->result = DID_RESET << 16;
2350 r = FAILED;
2351 goto out;
2352 }
2353
2354 r = mpt3sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2355 scmd->device->id, scmd->device->lun,
2356 MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 30, 0,
2357 TM_MUTEX_ON);
2358
2359 out:
2360 sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n",
2361 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2362 return r;
2363}
2364
2365/**
2366 * _scsih_target_reset - eh threads main target reset routine
2367 * @scmd: pointer to scsi command object
2368 *
2369 * Returns SUCCESS if command aborted else FAILED
2370 */
2371static int
2372_scsih_target_reset(struct scsi_cmnd *scmd)
2373{
2374 struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2375 struct MPT3SAS_DEVICE *sas_device_priv_data;
2376 struct _sas_device *sas_device;
2377 unsigned long flags;
2378 u16 handle;
2379 int r;
2380 struct scsi_target *starget = scmd->device->sdev_target;
2381
2382 starget_printk(KERN_INFO, starget, "attempting target reset! scmd(%p)\n",
2383 scmd);
2384 _scsih_tm_display_info(ioc, scmd);
2385
2386 sas_device_priv_data = scmd->device->hostdata;
2387 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2388 starget_printk(KERN_INFO, starget, "target been deleted! scmd(%p)\n",
2389 scmd);
2390 scmd->result = DID_NO_CONNECT << 16;
2391 scmd->scsi_done(scmd);
2392 r = SUCCESS;
2393 goto out;
2394 }
2395
2396 /* for hidden raid components obtain the volume_handle */
2397 handle = 0;
2398 if (sas_device_priv_data->sas_target->flags &
2399 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2400 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2401 sas_device = _scsih_sas_device_find_by_handle(ioc,
2402 sas_device_priv_data->sas_target->handle);
2403 if (sas_device)
2404 handle = sas_device->volume_handle;
2405 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2406 } else
2407 handle = sas_device_priv_data->sas_target->handle;
2408
2409 if (!handle) {
2410 scmd->result = DID_RESET << 16;
2411 r = FAILED;
2412 goto out;
2413 }
2414
2415 r = mpt3sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2416 scmd->device->id, 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
2417 30, 0, TM_MUTEX_ON);
2418
2419 out:
2420 starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n",
2421 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2422 return r;
2423}
2424
2425
2426/**
2427 * _scsih_host_reset - eh threads main host reset routine
2428 * @scmd: pointer to scsi command object
2429 *
2430 * Returns SUCCESS if command aborted else FAILED
2431 */
2432static int
2433_scsih_host_reset(struct scsi_cmnd *scmd)
2434{
2435 struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2436 int r, retval;
2437
2438 pr_info(MPT3SAS_FMT "attempting host reset! scmd(%p)\n",
2439 ioc->name, scmd);
2440 scsi_print_command(scmd);
2441
2442 retval = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2443 FORCE_BIG_HAMMER);
2444 r = (retval < 0) ? FAILED : SUCCESS;
2445 pr_info(MPT3SAS_FMT "host reset: %s scmd(%p)\n",
2446 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2447
2448 return r;
2449}
2450
2451/**
2452 * _scsih_fw_event_add - insert and queue up fw_event
2453 * @ioc: per adapter object
2454 * @fw_event: object describing the event
2455 * Context: This function will acquire ioc->fw_event_lock.
2456 *
2457 * This adds the firmware event object into link list, then queues it up to
2458 * be processed from user context.
2459 *
2460 * Return nothing.
2461 */
2462static void
2463_scsih_fw_event_add(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
2464{
2465 unsigned long flags;
2466
2467 if (ioc->firmware_event_thread == NULL)
2468 return;
2469
2470 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2471 INIT_LIST_HEAD(&fw_event->list);
2472 list_add_tail(&fw_event->list, &ioc->fw_event_list);
2473 INIT_WORK(&fw_event->work, _firmware_event_work);
2474 queue_work(ioc->firmware_event_thread, &fw_event->work);
2475 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2476}
2477
2478/**
2479 * _scsih_fw_event_free - delete fw_event
2480 * @ioc: per adapter object
2481 * @fw_event: object describing the event
2482 * Context: This function will acquire ioc->fw_event_lock.
2483 *
2484 * This removes firmware event object from link list, frees associated memory.
2485 *
2486 * Return nothing.
2487 */
2488static void
2489_scsih_fw_event_free(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work
2490 *fw_event)
2491{
2492 unsigned long flags;
2493
2494 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2495 list_del(&fw_event->list);
2496 kfree(fw_event->event_data);
2497 kfree(fw_event);
2498 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2499}
2500
2501
2502 /**
2503 * mpt3sas_send_trigger_data_event - send event for processing trigger data
2504 * @ioc: per adapter object
2505 * @event_data: trigger event data
2506 *
2507 * Return nothing.
2508 */
2509void
2510mpt3sas_send_trigger_data_event(struct MPT3SAS_ADAPTER *ioc,
2511 struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data)
2512{
2513 struct fw_event_work *fw_event;
2514
2515 if (ioc->is_driver_loading)
2516 return;
2517 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
2518 if (!fw_event)
2519 return;
2520 fw_event->event_data = kzalloc(sizeof(*event_data), GFP_ATOMIC);
2521 if (!fw_event->event_data)
2522 return;
2523 fw_event->event = MPT3SAS_PROCESS_TRIGGER_DIAG;
2524 fw_event->ioc = ioc;
2525 memcpy(fw_event->event_data, event_data, sizeof(*event_data));
2526 _scsih_fw_event_add(ioc, fw_event);
2527}
2528
2529/**
2530 * _scsih_error_recovery_delete_devices - remove devices not responding
2531 * @ioc: per adapter object
2532 *
2533 * Return nothing.
2534 */
2535static void
2536_scsih_error_recovery_delete_devices(struct MPT3SAS_ADAPTER *ioc)
2537{
2538 struct fw_event_work *fw_event;
2539
2540 if (ioc->is_driver_loading)
2541 return;
2542 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
2543 if (!fw_event)
2544 return;
2545 fw_event->event = MPT3SAS_REMOVE_UNRESPONDING_DEVICES;
2546 fw_event->ioc = ioc;
2547 _scsih_fw_event_add(ioc, fw_event);
2548}
2549
2550/**
2551 * mpt3sas_port_enable_complete - port enable completed (fake event)
2552 * @ioc: per adapter object
2553 *
2554 * Return nothing.
2555 */
2556void
2557mpt3sas_port_enable_complete(struct MPT3SAS_ADAPTER *ioc)
2558{
2559 struct fw_event_work *fw_event;
2560
2561 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
2562 if (!fw_event)
2563 return;
2564 fw_event->event = MPT3SAS_PORT_ENABLE_COMPLETE;
2565 fw_event->ioc = ioc;
2566 _scsih_fw_event_add(ioc, fw_event);
2567}
2568
2569/**
2570 * _scsih_fw_event_cleanup_queue - cleanup event queue
2571 * @ioc: per adapter object
2572 *
2573 * Walk the firmware event queue, either killing timers, or waiting
2574 * for outstanding events to complete
2575 *
2576 * Return nothing.
2577 */
2578static void
2579_scsih_fw_event_cleanup_queue(struct MPT3SAS_ADAPTER *ioc)
2580{
2581 struct fw_event_work *fw_event, *next;
2582
2583 if (list_empty(&ioc->fw_event_list) ||
2584 !ioc->firmware_event_thread || in_interrupt())
2585 return;
2586
2587 list_for_each_entry_safe(fw_event, next, &ioc->fw_event_list, list) {
2588 if (cancel_delayed_work(&fw_event->delayed_work)) {
2589 _scsih_fw_event_free(ioc, fw_event);
2590 continue;
2591 }
2592 fw_event->cancel_pending_work = 1;
2593 }
2594}
2595
2596/**
2597 * _scsih_ublock_io_all_device - unblock every device
2598 * @ioc: per adapter object
2599 *
2600 * change the device state from block to running
2601 */
2602static void
2603_scsih_ublock_io_all_device(struct MPT3SAS_ADAPTER *ioc)
2604{
2605 struct MPT3SAS_DEVICE *sas_device_priv_data;
2606 struct scsi_device *sdev;
2607
2608 shost_for_each_device(sdev, ioc->shost) {
2609 sas_device_priv_data = sdev->hostdata;
2610 if (!sas_device_priv_data)
2611 continue;
2612 if (!sas_device_priv_data->block)
2613 continue;
2614
2615 sas_device_priv_data->block = 0;
2616 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2617 "device_running, handle(0x%04x)\n",
2618 sas_device_priv_data->sas_target->handle));
2619 scsi_internal_device_unblock(sdev, SDEV_RUNNING);
2620 }
2621}
2622
2623
2624/**
2625 * _scsih_ublock_io_device - prepare device to be deleted
2626 * @ioc: per adapter object
2627 * @sas_addr: sas address
2628 *
2629 * unblock then put device in offline state
2630 */
2631static void
2632_scsih_ublock_io_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address)
2633{
2634 struct MPT3SAS_DEVICE *sas_device_priv_data;
2635 struct scsi_device *sdev;
2636
2637 shost_for_each_device(sdev, ioc->shost) {
2638 sas_device_priv_data = sdev->hostdata;
2639 if (!sas_device_priv_data)
2640 continue;
2641 if (sas_device_priv_data->sas_target->sas_address
2642 != sas_address)
2643 continue;
2644 if (sas_device_priv_data->block) {
2645 sas_device_priv_data->block = 0;
2646 scsi_internal_device_unblock(sdev, SDEV_RUNNING);
2647 }
2648 }
2649}
2650
2651/**
2652 * _scsih_block_io_all_device - set the device state to SDEV_BLOCK
2653 * @ioc: per adapter object
2654 * @handle: device handle
2655 *
2656 * During device pull we need to appropiately set the sdev state.
2657 */
2658static void
2659_scsih_block_io_all_device(struct MPT3SAS_ADAPTER *ioc)
2660{
2661 struct MPT3SAS_DEVICE *sas_device_priv_data;
2662 struct scsi_device *sdev;
2663
2664 shost_for_each_device(sdev, ioc->shost) {
2665 sas_device_priv_data = sdev->hostdata;
2666 if (!sas_device_priv_data)
2667 continue;
2668 if (sas_device_priv_data->block)
2669 continue;
2670 sas_device_priv_data->block = 1;
2671 scsi_internal_device_block(sdev);
2672 sdev_printk(KERN_INFO, sdev, "device_blocked, handle(0x%04x)\n",
2673 sas_device_priv_data->sas_target->handle);
2674 }
2675}
2676
2677/**
2678 * _scsih_block_io_device - set the device state to SDEV_BLOCK
2679 * @ioc: per adapter object
2680 * @handle: device handle
2681 *
2682 * During device pull we need to appropiately set the sdev state.
2683 */
2684static void
2685_scsih_block_io_device(struct MPT3SAS_ADAPTER *ioc, u16 handle)
2686{
2687 struct MPT3SAS_DEVICE *sas_device_priv_data;
2688 struct scsi_device *sdev;
2689
2690 shost_for_each_device(sdev, ioc->shost) {
2691 sas_device_priv_data = sdev->hostdata;
2692 if (!sas_device_priv_data)
2693 continue;
2694 if (sas_device_priv_data->sas_target->handle != handle)
2695 continue;
2696 if (sas_device_priv_data->block)
2697 continue;
2698 sas_device_priv_data->block = 1;
2699 scsi_internal_device_block(sdev);
2700 sdev_printk(KERN_INFO, sdev,
2701 "device_blocked, handle(0x%04x)\n", handle);
2702 }
2703}
2704
2705/**
2706 * _scsih_block_io_to_children_attached_to_ex
2707 * @ioc: per adapter object
2708 * @sas_expander: the sas_device object
2709 *
2710 * This routine set sdev state to SDEV_BLOCK for all devices
2711 * attached to this expander. This function called when expander is
2712 * pulled.
2713 */
2714static void
2715_scsih_block_io_to_children_attached_to_ex(struct MPT3SAS_ADAPTER *ioc,
2716 struct _sas_node *sas_expander)
2717{
2718 struct _sas_port *mpt3sas_port;
2719 struct _sas_device *sas_device;
2720 struct _sas_node *expander_sibling;
2721 unsigned long flags;
2722
2723 if (!sas_expander)
2724 return;
2725
2726 list_for_each_entry(mpt3sas_port,
2727 &sas_expander->sas_port_list, port_list) {
2728 if (mpt3sas_port->remote_identify.device_type ==
2729 SAS_END_DEVICE) {
2730 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2731 sas_device =
2732 mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
2733 mpt3sas_port->remote_identify.sas_address);
2734 if (sas_device)
2735 set_bit(sas_device->handle,
2736 ioc->blocking_handles);
2737 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2738 }
2739 }
2740
2741 list_for_each_entry(mpt3sas_port,
2742 &sas_expander->sas_port_list, port_list) {
2743
2744 if (mpt3sas_port->remote_identify.device_type ==
2745 SAS_EDGE_EXPANDER_DEVICE ||
2746 mpt3sas_port->remote_identify.device_type ==
2747 SAS_FANOUT_EXPANDER_DEVICE) {
2748 expander_sibling =
2749 mpt3sas_scsih_expander_find_by_sas_address(
2750 ioc, mpt3sas_port->remote_identify.sas_address);
2751 _scsih_block_io_to_children_attached_to_ex(ioc,
2752 expander_sibling);
2753 }
2754 }
2755}
2756
2757/**
2758 * _scsih_block_io_to_children_attached_directly
2759 * @ioc: per adapter object
2760 * @event_data: topology change event data
2761 *
2762 * This routine set sdev state to SDEV_BLOCK for all devices
2763 * direct attached during device pull.
2764 */
2765static void
2766_scsih_block_io_to_children_attached_directly(struct MPT3SAS_ADAPTER *ioc,
2767 Mpi2EventDataSasTopologyChangeList_t *event_data)
2768{
2769 int i;
2770 u16 handle;
2771 u16 reason_code;
f92363d1
SR		 2772
2773 for (i = 0; i < event_data->NumEntries; i++) {
2774 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
2775 if (!handle)
2776 continue;
f92363d1
SR		 2777 reason_code = event_data->PHY[i].PhyStatus &
2778 MPI2_EVENT_SAS_TOPO_RC_MASK;
2779 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING)
2780 _scsih_block_io_device(ioc, handle);
2781 }
2782}
2783
2784/**
2785 * _scsih_tm_tr_send - send task management request
2786 * @ioc: per adapter object
2787 * @handle: device handle
2788 * Context: interrupt time.
2789 *
2790 * This code is to initiate the device removal handshake protocol
2791 * with controller firmware. This function will issue target reset
2792 * using high priority request queue. It will send a sas iounit
2793 * control request (MPI2_SAS_OP_REMOVE_DEVICE) from this completion.
2794 *
2795 * This is designed to send muliple task management request at the same
2796 * time to the fifo. If the fifo is full, we will append the request,
2797 * and process it in a future completion.
2798 */
2799static void
2800_scsih_tm_tr_send(struct MPT3SAS_ADAPTER *ioc, u16 handle)
2801{
2802 Mpi2SCSITaskManagementRequest_t *mpi_request;
2803 u16 smid;
2804 struct _sas_device *sas_device;
2805 struct MPT3SAS_TARGET *sas_target_priv_data = NULL;
2806 u64 sas_address = 0;
2807 unsigned long flags;
2808 struct _tr_list *delayed_tr;
2809 u32 ioc_state;
2810
2811 if (ioc->remove_host) {
2812 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2813 "%s: host has been removed: handle(0x%04x)\n",
2814 __func__, ioc->name, handle));
2815 return;
2816 } else if (ioc->pci_error_recovery) {
2817 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2818 "%s: host in pci error recovery: handle(0x%04x)\n",
2819 __func__, ioc->name,
2820 handle));
2821 return;
2822 }
2823 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
2824 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
2825 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2826 "%s: host is not operational: handle(0x%04x)\n",
2827 __func__, ioc->name,
2828 handle));
2829 return;
2830 }
2831
2832 /* if PD, then return */
2833 if (test_bit(handle, ioc->pd_handles))
2834 return;
2835
2836 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2837 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
2838 if (sas_device && sas_device->starget &&
2839 sas_device->starget->hostdata) {
2840 sas_target_priv_data = sas_device->starget->hostdata;
2841 sas_target_priv_data->deleted = 1;
2842 sas_address = sas_device->sas_address;
2843 }
2844 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2845
2846 if (sas_target_priv_data) {
2847 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2848 "setting delete flag: handle(0x%04x), sas_addr(0x%016llx)\n",
2849 ioc->name, handle,
2850 (unsigned long long)sas_address));
2851 _scsih_ublock_io_device(ioc, sas_address);
2852 sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE;
2853 }
2854
2855 smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_tr_cb_idx);
2856 if (!smid) {
2857 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
2858 if (!delayed_tr)
2859 return;
2860 INIT_LIST_HEAD(&delayed_tr->list);
2861 delayed_tr->handle = handle;
2862 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
2863 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2864 "DELAYED:tr:handle(0x%04x), (open)\n",
2865 ioc->name, handle));
2866 return;
2867 }
2868
2869 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2870 "tr_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
2871 ioc->name, handle, smid,
2872 ioc->tm_tr_cb_idx));
2873 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
2874 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
2875 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
2876 mpi_request->DevHandle = cpu_to_le16(handle);
2877 mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
2878 mpt3sas_base_put_smid_hi_priority(ioc, smid);
2879 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_DEVICE_REMOVAL);
2880}
2881
2882/**
2883 * _scsih_tm_tr_complete -
2884 * @ioc: per adapter object
2885 * @smid: system request message index
2886 * @msix_index: MSIX table index supplied by the OS
2887 * @reply: reply message frame(lower 32bit addr)
2888 * Context: interrupt time.
2889 *
2890 * This is the target reset completion routine.
2891 * This code is part of the code to initiate the device removal
2892 * handshake protocol with controller firmware.
2893 * It will send a sas iounit control request (MPI2_SAS_OP_REMOVE_DEVICE)
2894 *
2895 * Return 1 meaning mf should be freed from _base_interrupt
2896 * 0 means the mf is freed from this function.
2897 */
2898static u8
2899_scsih_tm_tr_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
2900 u32 reply)
2901{
2902 u16 handle;
2903 Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
2904 Mpi2SCSITaskManagementReply_t *mpi_reply =
2905 mpt3sas_base_get_reply_virt_addr(ioc, reply);
2906 Mpi2SasIoUnitControlRequest_t *mpi_request;
2907 u16 smid_sas_ctrl;
2908 u32 ioc_state;
2909
2910 if (ioc->remove_host) {
2911 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2912 "%s: host has been removed\n", __func__, ioc->name));
2913 return 1;
2914 } else if (ioc->pci_error_recovery) {
2915 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2916 "%s: host in pci error recovery\n", __func__,
2917 ioc->name));
2918 return 1;
2919 }
2920 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
2921 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
2922 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2923 "%s: host is not operational\n", __func__, ioc->name));
2924 return 1;
2925 }
2926 if (unlikely(!mpi_reply)) {
2927 pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n",
2928 ioc->name, __FILE__, __LINE__, __func__);
2929 return 1;
2930 }
2931 mpi_request_tm = mpt3sas_base_get_msg_frame(ioc, smid);
2932 handle = le16_to_cpu(mpi_request_tm->DevHandle);
2933 if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
2934 dewtprintk(ioc, pr_err(MPT3SAS_FMT
2935 "spurious interrupt: handle(0x%04x:0x%04x), smid(%d)!!!\n",
2936 ioc->name, handle,
2937 le16_to_cpu(mpi_reply->DevHandle), smid));
2938 return 0;
2939 }
2940
2941 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
2942 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2943 "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
2944 "loginfo(0x%08x), completed(%d)\n", ioc->name,
2945 handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
2946 le32_to_cpu(mpi_reply->IOCLogInfo),
2947 le32_to_cpu(mpi_reply->TerminationCount)));
2948
2949 smid_sas_ctrl = mpt3sas_base_get_smid(ioc, ioc->tm_sas_control_cb_idx);
2950 if (!smid_sas_ctrl) {
2951 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
2952 ioc->name, __func__);
2953 return 1;
2954 }
2955
2956 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2957 "sc_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
2958 ioc->name, handle, smid_sas_ctrl,
2959 ioc->tm_sas_control_cb_idx));
2960 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid_sas_ctrl);
2961 memset(mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
2962 mpi_request->Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
2963 mpi_request->Operation = MPI2_SAS_OP_REMOVE_DEVICE;
2964 mpi_request->DevHandle = mpi_request_tm->DevHandle;
2965 mpt3sas_base_put_smid_default(ioc, smid_sas_ctrl);
2966
2967 return _scsih_check_for_pending_tm(ioc, smid);
2968}
2969
2970
2971/**
2972 * _scsih_sas_control_complete - completion routine
2973 * @ioc: per adapter object
2974 * @smid: system request message index
2975 * @msix_index: MSIX table index supplied by the OS
2976 * @reply: reply message frame(lower 32bit addr)
2977 * Context: interrupt time.
2978 *
2979 * This is the sas iounit control completion routine.
2980 * This code is part of the code to initiate the device removal
2981 * handshake protocol with controller firmware.
2982 *
2983 * Return 1 meaning mf should be freed from _base_interrupt
2984 * 0 means the mf is freed from this function.
2985 */
2986static u8
2987_scsih_sas_control_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid,
2988 u8 msix_index, u32 reply)
2989{
2990 Mpi2SasIoUnitControlReply_t *mpi_reply =
2991 mpt3sas_base_get_reply_virt_addr(ioc, reply);
2992
2993 if (likely(mpi_reply)) {
2994 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2995 "sc_complete:handle(0x%04x), (open) "
2996 "smid(%d), ioc_status(0x%04x), loginfo(0x%08x)\n",
2997 ioc->name, le16_to_cpu(mpi_reply->DevHandle), smid,
2998 le16_to_cpu(mpi_reply->IOCStatus),
2999 le32_to_cpu(mpi_reply->IOCLogInfo)));
3000 } else {
3001 pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n",
3002 ioc->name, __FILE__, __LINE__, __func__);
3003 }
3004 return 1;
3005}
3006
3007/**
3008 * _scsih_tm_tr_volume_send - send target reset request for volumes
3009 * @ioc: per adapter object
3010 * @handle: device handle
3011 * Context: interrupt time.
3012 *
3013 * This is designed to send muliple task management request at the same
3014 * time to the fifo. If the fifo is full, we will append the request,
3015 * and process it in a future completion.
3016 */
3017static void
3018_scsih_tm_tr_volume_send(struct MPT3SAS_ADAPTER *ioc, u16 handle)
3019{
3020 Mpi2SCSITaskManagementRequest_t *mpi_request;
3021 u16 smid;
3022 struct _tr_list *delayed_tr;
3023
3024 if (ioc->shost_recovery || ioc->remove_host ||
3025 ioc->pci_error_recovery) {
3026 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3027 "%s: host reset in progress!\n",
3028 __func__, ioc->name));
3029 return;
3030 }
3031
3032 smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_tr_volume_cb_idx);
3033 if (!smid) {
3034 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
3035 if (!delayed_tr)
3036 return;
3037 INIT_LIST_HEAD(&delayed_tr->list);
3038 delayed_tr->handle = handle;
3039 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_volume_list);
3040 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3041 "DELAYED:tr:handle(0x%04x), (open)\n",
3042 ioc->name, handle));
3043 return;
3044 }
3045
3046 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3047 "tr_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
3048 ioc->name, handle, smid,
3049 ioc->tm_tr_volume_cb_idx));
3050 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
3051 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
3052 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
3053 mpi_request->DevHandle = cpu_to_le16(handle);
3054 mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
3055 mpt3sas_base_put_smid_hi_priority(ioc, smid);
3056}
3057
3058/**
3059 * _scsih_tm_volume_tr_complete - target reset completion
3060 * @ioc: per adapter object
3061 * @smid: system request message index
3062 * @msix_index: MSIX table index supplied by the OS
3063 * @reply: reply message frame(lower 32bit addr)
3064 * Context: interrupt time.
3065 *
3066 * Return 1 meaning mf should be freed from _base_interrupt
3067 * 0 means the mf is freed from this function.
3068 */
3069static u8
3070_scsih_tm_volume_tr_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid,
3071 u8 msix_index, u32 reply)
3072{
3073 u16 handle;
3074 Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
3075 Mpi2SCSITaskManagementReply_t *mpi_reply =
3076 mpt3sas_base_get_reply_virt_addr(ioc, reply);
3077
3078 if (ioc->shost_recovery || ioc->remove_host ||
3079 ioc->pci_error_recovery) {
3080 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3081 "%s: host reset in progress!\n",
3082 __func__, ioc->name));
3083 return 1;
3084 }
3085 if (unlikely(!mpi_reply)) {
3086 pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n",
3087 ioc->name, __FILE__, __LINE__, __func__);
3088 return 1;
3089 }
3090
3091 mpi_request_tm = mpt3sas_base_get_msg_frame(ioc, smid);
3092 handle = le16_to_cpu(mpi_request_tm->DevHandle);
3093 if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
3094 dewtprintk(ioc, pr_err(MPT3SAS_FMT
3095 "spurious interrupt: handle(0x%04x:0x%04x), smid(%d)!!!\n",
3096 ioc->name, handle,
3097 le16_to_cpu(mpi_reply->DevHandle), smid));
3098 return 0;
3099 }
3100
3101 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3102 "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
3103 "loginfo(0x%08x), completed(%d)\n", ioc->name,
3104 handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
3105 le32_to_cpu(mpi_reply->IOCLogInfo),
3106 le32_to_cpu(mpi_reply->TerminationCount)));
3107
3108 return _scsih_check_for_pending_tm(ioc, smid);
3109}
3110
3111
3112/**
3113 * _scsih_check_for_pending_tm - check for pending task management
3114 * @ioc: per adapter object
3115 * @smid: system request message index
3116 *
3117 * This will check delayed target reset list, and feed the
3118 * next reqeust.
3119 *
3120 * Return 1 meaning mf should be freed from _base_interrupt
3121 * 0 means the mf is freed from this function.
3122 */
3123static u8
3124_scsih_check_for_pending_tm(struct MPT3SAS_ADAPTER *ioc, u16 smid)
3125{
3126 struct _tr_list *delayed_tr;
3127
3128 if (!list_empty(&ioc->delayed_tr_volume_list)) {
3129 delayed_tr = list_entry(ioc->delayed_tr_volume_list.next,
3130 struct _tr_list, list);
3131 mpt3sas_base_free_smid(ioc, smid);
3132 _scsih_tm_tr_volume_send(ioc, delayed_tr->handle);
3133 list_del(&delayed_tr->list);
3134 kfree(delayed_tr);
3135 return 0;
3136 }
3137
3138 if (!list_empty(&ioc->delayed_tr_list)) {
3139 delayed_tr = list_entry(ioc->delayed_tr_list.next,
3140 struct _tr_list, list);
3141 mpt3sas_base_free_smid(ioc, smid);
3142 _scsih_tm_tr_send(ioc, delayed_tr->handle);
3143 list_del(&delayed_tr->list);
3144 kfree(delayed_tr);
3145 return 0;
3146 }
3147
3148 return 1;
3149}
3150
3151/**
3152 * _scsih_check_topo_delete_events - sanity check on topo events
3153 * @ioc: per adapter object
3154 * @event_data: the event data payload
3155 *
3156 * This routine added to better handle cable breaker.
3157 *
3158 * This handles the case where driver receives multiple expander
3159 * add and delete events in a single shot. When there is a delete event
3160 * the routine will void any pending add events waiting in the event queue.
3161 *
3162 * Return nothing.
3163 */
3164static void
3165_scsih_check_topo_delete_events(struct MPT3SAS_ADAPTER *ioc,
3166 Mpi2EventDataSasTopologyChangeList_t *event_data)
3167{
3168 struct fw_event_work *fw_event;
3169 Mpi2EventDataSasTopologyChangeList_t *local_event_data;
3170 u16 expander_handle;
3171 struct _sas_node *sas_expander;
3172 unsigned long flags;
3173 int i, reason_code;
3174 u16 handle;
3175
3176 for (i = 0 ; i < event_data->NumEntries; i++) {
3177 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
3178 if (!handle)
3179 continue;
3180 reason_code = event_data->PHY[i].PhyStatus &
3181 MPI2_EVENT_SAS_TOPO_RC_MASK;
3182 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING)
3183 _scsih_tm_tr_send(ioc, handle);
3184 }
3185
3186 expander_handle = le16_to_cpu(event_data->ExpanderDevHandle);
3187 if (expander_handle < ioc->sas_hba.num_phys) {
3188 _scsih_block_io_to_children_attached_directly(ioc, event_data);
3189 return;
3190 }
3191 if (event_data->ExpStatus ==
3192 MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING) {
3193 /* put expander attached devices into blocking state */
3194 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3195 sas_expander = mpt3sas_scsih_expander_find_by_handle(ioc,
3196 expander_handle);
3197 _scsih_block_io_to_children_attached_to_ex(ioc, sas_expander);
3198 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3199 do {
3200 handle = find_first_bit(ioc->blocking_handles,
3201 ioc->facts.MaxDevHandle);
3202 if (handle < ioc->facts.MaxDevHandle)
3203 _scsih_block_io_device(ioc, handle);
3204 } while (test_and_clear_bit(handle, ioc->blocking_handles));
3205 } else if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_RESPONDING)
3206 _scsih_block_io_to_children_attached_directly(ioc, event_data);
3207
3208 if (event_data->ExpStatus != MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
3209 return;
3210
3211 /* mark ignore flag for pending events */
3212 spin_lock_irqsave(&ioc->fw_event_lock, flags);
3213 list_for_each_entry(fw_event, &ioc->fw_event_list, list) {
3214 if (fw_event->event != MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
3215 fw_event->ignore)
3216 continue;
3217 local_event_data = fw_event->event_data;
3218 if (local_event_data->ExpStatus ==
3219 MPI2_EVENT_SAS_TOPO_ES_ADDED ||
3220 local_event_data->ExpStatus ==
3221 MPI2_EVENT_SAS_TOPO_ES_RESPONDING) {
3222 if (le16_to_cpu(local_event_data->ExpanderDevHandle) ==
3223 expander_handle) {
3224 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3225 "setting ignoring flag\n", ioc->name));
3226 fw_event->ignore = 1;
3227 }
3228 }
3229 }
3230 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
3231}
3232
3233/**
3234 * _scsih_set_volume_delete_flag - setting volume delete flag
3235 * @ioc: per adapter object
3236 * @handle: device handle
3237 *
3238 * This returns nothing.
3239 */
3240static void
3241_scsih_set_volume_delete_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle)
3242{
3243 struct _raid_device *raid_device;
3244 struct MPT3SAS_TARGET *sas_target_priv_data;
3245 unsigned long flags;
3246
3247 spin_lock_irqsave(&ioc->raid_device_lock, flags);
3248 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
3249 if (raid_device && raid_device->starget &&
3250 raid_device->starget->hostdata) {
3251 sas_target_priv_data =
3252 raid_device->starget->hostdata;
3253 sas_target_priv_data->deleted = 1;
3254 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3255 "setting delete flag: handle(0x%04x), "
3256 "wwid(0x%016llx)\n", ioc->name, handle,
3257 (unsigned long long) raid_device->wwid));
3258 }
3259 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
3260}
3261
3262/**
3263 * _scsih_set_volume_handle_for_tr - set handle for target reset to volume
3264 * @handle: input handle
3265 * @a: handle for volume a
3266 * @b: handle for volume b
3267 *
3268 * IR firmware only supports two raid volumes. The purpose of this
3269 * routine is to set the volume handle in either a or b. When the given
3270 * input handle is non-zero, or when a and b have not been set before.
3271 */
3272static void
3273_scsih_set_volume_handle_for_tr(u16 handle, u16 *a, u16 *b)
3274{
3275 if (!handle || handle == *a || handle == *b)
3276 return;
3277 if (!*a)
3278 *a = handle;
3279 else if (!*b)
3280 *b = handle;
3281}
3282
3283/**
3284 * _scsih_check_ir_config_unhide_events - check for UNHIDE events
3285 * @ioc: per adapter object
3286 * @event_data: the event data payload
3287 * Context: interrupt time.
3288 *
3289 * This routine will send target reset to volume, followed by target
3290 * resets to the PDs. This is called when a PD has been removed, or
3291 * volume has been deleted or removed. When the target reset is sent
3292 * to volume, the PD target resets need to be queued to start upon
3293 * completion of the volume target reset.
3294 *
3295 * Return nothing.
3296 */
3297static void
3298_scsih_check_ir_config_unhide_events(struct MPT3SAS_ADAPTER *ioc,
3299 Mpi2EventDataIrConfigChangeList_t *event_data)
3300{
3301 Mpi2EventIrConfigElement_t *element;
3302 int i;
3303 u16 handle, volume_handle, a, b;
3304 struct _tr_list *delayed_tr;
3305
3306 a = 0;
3307 b = 0;
3308
3309 /* Volume Resets for Deleted or Removed */
3310 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3311 for (i = 0; i < event_data->NumElements; i++, element++) {
3312 if (le32_to_cpu(event_data->Flags) &
3313 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
3314 continue;
3315 if (element->ReasonCode ==
3316 MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED ||
3317 element->ReasonCode ==
3318 MPI2_EVENT_IR_CHANGE_RC_REMOVED) {
3319 volume_handle = le16_to_cpu(element->VolDevHandle);
3320 _scsih_set_volume_delete_flag(ioc, volume_handle);
3321 _scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
3322 }
3323 }
3324
3325 /* Volume Resets for UNHIDE events */
3326 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3327 for (i = 0; i < event_data->NumElements; i++, element++) {
3328 if (le32_to_cpu(event_data->Flags) &
3329 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
3330 continue;
3331 if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_UNHIDE) {
3332 volume_handle = le16_to_cpu(element->VolDevHandle);
3333 _scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
3334 }
3335 }
3336
3337 if (a)
3338 _scsih_tm_tr_volume_send(ioc, a);
3339 if (b)
3340 _scsih_tm_tr_volume_send(ioc, b);
3341
3342 /* PD target resets */
3343 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3344 for (i = 0; i < event_data->NumElements; i++, element++) {
3345 if (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_UNHIDE)
3346 continue;
3347 handle = le16_to_cpu(element->PhysDiskDevHandle);
3348 volume_handle = le16_to_cpu(element->VolDevHandle);
3349 clear_bit(handle, ioc->pd_handles);
3350 if (!volume_handle)
3351 _scsih_tm_tr_send(ioc, handle);
3352 else if (volume_handle == a || volume_handle == b) {
3353 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
3354 BUG_ON(!delayed_tr);
3355 INIT_LIST_HEAD(&delayed_tr->list);
3356 delayed_tr->handle = handle;
3357 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
3358 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3359 "DELAYED:tr:handle(0x%04x), (open)\n", ioc->name,
3360 handle));
3361 } else
3362 _scsih_tm_tr_send(ioc, handle);
3363 }
3364}
3365
3366
3367/**
3368 * _scsih_check_volume_delete_events - set delete flag for volumes
3369 * @ioc: per adapter object
3370 * @event_data: the event data payload
3371 * Context: interrupt time.
3372 *
3373 * This will handle the case when the cable connected to entire volume is
3374 * pulled. We will take care of setting the deleted flag so normal IO will
3375 * not be sent.
3376 *
3377 * Return nothing.
3378 */
3379static void
3380_scsih_check_volume_delete_events(struct MPT3SAS_ADAPTER *ioc,
3381 Mpi2EventDataIrVolume_t *event_data)
3382{
3383 u32 state;
3384
3385 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
3386 return;
3387 state = le32_to_cpu(event_data->NewValue);
3388 if (state == MPI2_RAID_VOL_STATE_MISSING || state ==
3389 MPI2_RAID_VOL_STATE_FAILED)
3390 _scsih_set_volume_delete_flag(ioc,
3391 le16_to_cpu(event_data->VolDevHandle));
3392}
3393
3394/**
3395 * _scsih_flush_running_cmds - completing outstanding commands.
3396 * @ioc: per adapter object
3397 *
3398 * The flushing out of all pending scmd commands following host reset,
3399 * where all IO is dropped to the floor.
3400 *
3401 * Return nothing.
3402 */
3403static void
3404_scsih_flush_running_cmds(struct MPT3SAS_ADAPTER *ioc)
3405{
3406 struct scsi_cmnd *scmd;
3407 u16 smid;
3408 u16 count = 0;
3409
3410 for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
3411 scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
3412 if (!scmd)
3413 continue;
3414 count++;
3415 mpt3sas_base_free_smid(ioc, smid);
3416 scsi_dma_unmap(scmd);
3417 if (ioc->pci_error_recovery)
3418 scmd->result = DID_NO_CONNECT << 16;
3419 else
3420 scmd->result = DID_RESET << 16;
3421 scmd->scsi_done(scmd);
3422 }
3423 dtmprintk(ioc, pr_info(MPT3SAS_FMT "completing %d cmds\n",
3424 ioc->name, count));
3425}
3426
3427/**
3428 * _scsih_setup_eedp - setup MPI request for EEDP transfer
3429 * @ioc: per adapter object
3430 * @scmd: pointer to scsi command object
3431 * @mpi_request: pointer to the SCSI_IO reqest message frame
3432 *
3433 * Supporting protection 1 and 3.
3434 *
3435 * Returns nothing
3436 */
3437static void
3438_scsih_setup_eedp(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
3439 Mpi2SCSIIORequest_t *mpi_request)
3440{
3441 u16 eedp_flags;
3442 unsigned char prot_op = scsi_get_prot_op(scmd);
3443 unsigned char prot_type = scsi_get_prot_type(scmd);
3444 Mpi25SCSIIORequest_t *mpi_request_3v =
3445 (Mpi25SCSIIORequest_t *)mpi_request;
3446
3447 if (prot_type == SCSI_PROT_DIF_TYPE0 || prot_op == SCSI_PROT_NORMAL)
3448 return;
3449
3450 if (prot_op == SCSI_PROT_READ_STRIP)
3451 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP;
3452 else if (prot_op == SCSI_PROT_WRITE_INSERT)
3453 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_INSERT_OP;
3454 else
3455 return;
3456
3457 switch (prot_type) {
3458 case SCSI_PROT_DIF_TYPE1:
3459 case SCSI_PROT_DIF_TYPE2:
3460
3461 /*
3462 * enable ref/guard checking
3463 * auto increment ref tag
3464 */
3465 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
3466 MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
3467 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
3468 mpi_request->CDB.EEDP32.PrimaryReferenceTag =
3469 cpu_to_be32(scsi_get_lba(scmd));
3470 break;
3471
3472 case SCSI_PROT_DIF_TYPE3:
3473
3474 /*
3475 * enable guard checking
3476 */
3477 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
3478
3479 break;
3480 }
3481
3482 mpi_request_3v->EEDPBlockSize =
3483 cpu_to_le16(scmd->device->sector_size);
3484 mpi_request->EEDPFlags = cpu_to_le16(eedp_flags);
3485}
3486
3487/**
3488 * _scsih_eedp_error_handling - return sense code for EEDP errors
3489 * @scmd: pointer to scsi command object
3490 * @ioc_status: ioc status
3491 *
3492 * Returns nothing
3493 */
3494static void
3495_scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status)
3496{
3497 u8 ascq;
3498
3499 switch (ioc_status) {
3500 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
3501 ascq = 0x01;
3502 break;
3503 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
3504 ascq = 0x02;
3505 break;
3506 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
3507 ascq = 0x03;
3508 break;
3509 default:
3510 ascq = 0x00;
3511 break;
3512 }
3513 scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 0x10,
3514 ascq);
3515 scmd->result = DRIVER_SENSE << 24 | (DID_ABORT << 16) |
3516 SAM_STAT_CHECK_CONDITION;
3517}
3518
3519
3520/**
3521 * _scsih_qcmd_lck - main scsi request entry point
3522 * @scmd: pointer to scsi command object
3523 * @done: function pointer to be invoked on completion
3524 *
3525 * The callback index is set inside `ioc->scsi_io_cb_idx`.
3526 *
3527 * Returns 0 on success. If there's a failure, return either:
3528 * SCSI_MLQUEUE_DEVICE_BUSY if the device queue is full, or
3529 * SCSI_MLQUEUE_HOST_BUSY if the entire host queue is full
3530 */
3531static int
3532_scsih_qcmd_lck(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
3533{
3534 struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
3535 struct MPT3SAS_DEVICE *sas_device_priv_data;
3536 struct MPT3SAS_TARGET *sas_target_priv_data;
3537 Mpi2SCSIIORequest_t *mpi_request;
3538 u32 mpi_control;
3539 u16 smid;
3540 u16 handle;
3541
3542#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
3543 if (ioc->logging_level & MPT_DEBUG_SCSI)
3544 scsi_print_command(scmd);
3545#endif
3546
3547 scmd->scsi_done = done;
3548 sas_device_priv_data = scmd->device->hostdata;
3549 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
3550 scmd->result = DID_NO_CONNECT << 16;
3551 scmd->scsi_done(scmd);
3552 return 0;
3553 }
3554
3555 if (ioc->pci_error_recovery || ioc->remove_host) {
3556 scmd->result = DID_NO_CONNECT << 16;
3557 scmd->scsi_done(scmd);
3558 return 0;
3559 }
3560
3561 sas_target_priv_data = sas_device_priv_data->sas_target;
3562
3563 /* invalid device handle */
3564 handle = sas_target_priv_data->handle;
3565 if (handle == MPT3SAS_INVALID_DEVICE_HANDLE) {
3566 scmd->result = DID_NO_CONNECT << 16;
3567 scmd->scsi_done(scmd);
3568 return 0;
3569 }
3570
3571
3572 /* host recovery or link resets sent via IOCTLs */
3573 if (ioc->shost_recovery || ioc->ioc_link_reset_in_progress)
3574 return SCSI_MLQUEUE_HOST_BUSY;
3575
3576 /* device has been deleted */
3577 else if (sas_target_priv_data->deleted) {
3578 scmd->result = DID_NO_CONNECT << 16;
3579 scmd->scsi_done(scmd);
3580 return 0;
3581 /* device busy with task managment */
3582 } else if (sas_target_priv_data->tm_busy ||
3583 sas_device_priv_data->block)
3584 return SCSI_MLQUEUE_DEVICE_BUSY;
3585
3586 if (scmd->sc_data_direction == DMA_FROM_DEVICE)
3587 mpi_control = MPI2_SCSIIO_CONTROL_READ;
3588 else if (scmd->sc_data_direction == DMA_TO_DEVICE)
3589 mpi_control = MPI2_SCSIIO_CONTROL_WRITE;
3590 else
3591 mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER;
3592
3593 /* set tags */
3594 if (!(sas_device_priv_data->flags & MPT_DEVICE_FLAGS_INIT)) {
3595 if (scmd->device->tagged_supported) {
3596 if (scmd->device->ordered_tags)
3597 mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ;
3598 else
3599 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
3600 } else
3601 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
3602 } else
3603 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
3604
3605 if ((sas_device_priv_data->flags & MPT_DEVICE_TLR_ON) &&
3606 scmd->cmd_len != 32)
3607 mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
3608
3609 smid = mpt3sas_base_get_smid_scsiio(ioc, ioc->scsi_io_cb_idx, scmd);
3610 if (!smid) {
3611 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
3612 ioc->name, __func__);
3613 goto out;
3614 }
3615 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
3616 memset(mpi_request, 0, sizeof(Mpi2SCSIIORequest_t));
3617 _scsih_setup_eedp(ioc, scmd, mpi_request);
3618
3619 if (scmd->cmd_len == 32)
3620 mpi_control |= 4 << MPI2_SCSIIO_CONTROL_ADDCDBLEN_SHIFT;
3621 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
3622 if (sas_device_priv_data->sas_target->flags &
3623 MPT_TARGET_FLAGS_RAID_COMPONENT)
3624 mpi_request->Function = MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
3625 else
3626 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
3627 mpi_request->DevHandle = cpu_to_le16(handle);
3628 mpi_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
3629 mpi_request->Control = cpu_to_le32(mpi_control);
3630 mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len);
3631 mpi_request->MsgFlags = MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR;
3632 mpi_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
3633 mpi_request->SenseBufferLowAddress =
3634 mpt3sas_base_get_sense_buffer_dma(ioc, smid);
3635 mpi_request->SGLOffset0 = offsetof(Mpi2SCSIIORequest_t, SGL) / 4;
3636 int_to_scsilun(sas_device_priv_data->lun, (struct scsi_lun *)
3637 mpi_request->LUN);
3638 memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
3639
3640 if (mpi_request->DataLength) {
3641 if (ioc->build_sg_scmd(ioc, scmd, smid)) {
3642 mpt3sas_base_free_smid(ioc, smid);
3643 goto out;
3644 }
3645 } else
3646 ioc->build_zero_len_sge(ioc, &mpi_request->SGL);
3647
3648 if (likely(mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)) {
3649 if (sas_target_priv_data->flags & MPT_TARGET_FASTPATH_IO) {
3650 mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len |
3651 MPI25_SCSIIO_IOFLAGS_FAST_PATH);
3652 mpt3sas_base_put_smid_fast_path(ioc, smid, handle);
3653 } else
3654 mpt3sas_base_put_smid_scsi_io(ioc, smid, handle);
3655 } else
3656 mpt3sas_base_put_smid_default(ioc, smid);
3657 return 0;
3658
3659 out:
3660 return SCSI_MLQUEUE_HOST_BUSY;
3661}
3662static DEF_SCSI_QCMD(_scsih_qcmd)
3663
3664
3665/**
3666 * _scsih_normalize_sense - normalize descriptor and fixed format sense data
3667 * @sense_buffer: sense data returned by target
3668 * @data: normalized skey/asc/ascq
3669 *
3670 * Return nothing.
3671 */
3672static void
3673_scsih_normalize_sense(char *sense_buffer, struct sense_info *data)
3674{
3675 if ((sense_buffer[0] & 0x7F) >= 0x72) {
3676 /* descriptor format */
3677 data->skey = sense_buffer[1] & 0x0F;
3678 data->asc = sense_buffer[2];
3679 data->ascq = sense_buffer[3];
3680 } else {
3681 /* fixed format */
3682 data->skey = sense_buffer[2] & 0x0F;
3683 data->asc = sense_buffer[12];
3684 data->ascq = sense_buffer[13];
3685 }
3686}
3687
3688#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
3689/**
3690 * _scsih_scsi_ioc_info - translated non-succesfull SCSI_IO request
3691 * @ioc: per adapter object
3692 * @scmd: pointer to scsi command object
3693 * @mpi_reply: reply mf payload returned from firmware
3694 *
3695 * scsi_status - SCSI Status code returned from target device
3696 * scsi_state - state info associated with SCSI_IO determined by ioc
3697 * ioc_status - ioc supplied status info
3698 *
3699 * Return nothing.
3700 */
3701static void
3702_scsih_scsi_ioc_info(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
3703 Mpi2SCSIIOReply_t *mpi_reply, u16 smid)
3704{
3705 u32 response_info;
3706 u8 *response_bytes;
3707 u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
3708 MPI2_IOCSTATUS_MASK;
3709 u8 scsi_state = mpi_reply->SCSIState;
3710 u8 scsi_status = mpi_reply->SCSIStatus;
3711 char *desc_ioc_state = NULL;
3712 char *desc_scsi_status = NULL;
3713 char *desc_scsi_state = ioc->tmp_string;
3714 u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
3715 struct _sas_device *sas_device = NULL;
3716 unsigned long flags;
3717 struct scsi_target *starget = scmd->device->sdev_target;
3718 struct MPT3SAS_TARGET *priv_target = starget->hostdata;
3719 char *device_str = NULL;
3720
3721 if (!priv_target)
3722 return;
3723 device_str = "volume";
3724
3725 if (log_info == 0x31170000)
3726 return;
3727
3728 switch (ioc_status) {
3729 case MPI2_IOCSTATUS_SUCCESS:
3730 desc_ioc_state = "success";
3731 break;
3732 case MPI2_IOCSTATUS_INVALID_FUNCTION:
3733 desc_ioc_state = "invalid function";
3734 break;
3735 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
3736 desc_ioc_state = "scsi recovered error";
3737 break;
3738 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
3739 desc_ioc_state = "scsi invalid dev handle";
3740 break;
3741 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
3742 desc_ioc_state = "scsi device not there";
3743 break;
3744 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
3745 desc_ioc_state = "scsi data overrun";
3746 break;
3747 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
3748 desc_ioc_state = "scsi data underrun";
3749 break;
3750 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
3751 desc_ioc_state = "scsi io data error";
3752 break;
3753 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
3754 desc_ioc_state = "scsi protocol error";
3755 break;
3756 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
3757 desc_ioc_state = "scsi task terminated";
3758 break;
3759 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
3760 desc_ioc_state = "scsi residual mismatch";
3761 break;
3762 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
3763 desc_ioc_state = "scsi task mgmt failed";
3764 break;
3765 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
3766 desc_ioc_state = "scsi ioc terminated";
3767 break;
3768 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
3769 desc_ioc_state = "scsi ext terminated";
3770 break;
3771 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
3772 desc_ioc_state = "eedp guard error";
3773 break;
3774 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
3775 desc_ioc_state = "eedp ref tag error";
3776 break;
3777 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
3778 desc_ioc_state = "eedp app tag error";
3779 break;
3780 default:
3781 desc_ioc_state = "unknown";
3782 break;
3783 }
3784
3785 switch (scsi_status) {
3786 case MPI2_SCSI_STATUS_GOOD:
3787 desc_scsi_status = "good";
3788 break;
3789 case MPI2_SCSI_STATUS_CHECK_CONDITION:
3790 desc_scsi_status = "check condition";
3791 break;
3792 case MPI2_SCSI_STATUS_CONDITION_MET:
3793 desc_scsi_status = "condition met";
3794 break;
3795 case MPI2_SCSI_STATUS_BUSY:
3796 desc_scsi_status = "busy";
3797 break;
3798 case MPI2_SCSI_STATUS_INTERMEDIATE:
3799 desc_scsi_status = "intermediate";
3800 break;
3801 case MPI2_SCSI_STATUS_INTERMEDIATE_CONDMET:
3802 desc_scsi_status = "intermediate condmet";
3803 break;
3804 case MPI2_SCSI_STATUS_RESERVATION_CONFLICT:
3805 desc_scsi_status = "reservation conflict";
3806 break;
3807 case MPI2_SCSI_STATUS_COMMAND_TERMINATED:
3808 desc_scsi_status = "command terminated";
3809 break;
3810 case MPI2_SCSI_STATUS_TASK_SET_FULL:
3811 desc_scsi_status = "task set full";
3812 break;
3813 case MPI2_SCSI_STATUS_ACA_ACTIVE:
3814 desc_scsi_status = "aca active";
3815 break;
3816 case MPI2_SCSI_STATUS_TASK_ABORTED:
3817 desc_scsi_status = "task aborted";
3818 break;
3819 default:
3820 desc_scsi_status = "unknown";
3821 break;
3822 }
3823
3824 desc_scsi_state[0] = '\0';
3825 if (!scsi_state)
3826 desc_scsi_state = " ";
3827 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
3828 strcat(desc_scsi_state, "response info ");
3829 if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
3830 strcat(desc_scsi_state, "state terminated ");
3831 if (scsi_state & MPI2_SCSI_STATE_NO_SCSI_STATUS)
3832 strcat(desc_scsi_state, "no status ");
3833 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_FAILED)
3834 strcat(desc_scsi_state, "autosense failed ");
3835 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID)
3836 strcat(desc_scsi_state, "autosense valid ");
3837
3838 scsi_print_command(scmd);
3839
3840 if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
3841 pr_warn(MPT3SAS_FMT "\t%s wwid(0x%016llx)\n", ioc->name,
3842 device_str, (unsigned long long)priv_target->sas_address);
3843 } else {
3844 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3845 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
3846 priv_target->sas_address);
3847 if (sas_device) {
3848 pr_warn(MPT3SAS_FMT
3849 "\tsas_address(0x%016llx), phy(%d)\n",
3850 ioc->name, (unsigned long long)
3851 sas_device->sas_address, sas_device->phy);
3852 pr_warn(MPT3SAS_FMT
3853 "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
3854 ioc->name, (unsigned long long)
3855 sas_device->enclosure_logical_id, sas_device->slot);
3856 }
3857 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3858 }
3859
3860 pr_warn(MPT3SAS_FMT
3861 "\thandle(0x%04x), ioc_status(%s)(0x%04x), smid(%d)\n",
3862 ioc->name, le16_to_cpu(mpi_reply->DevHandle),
3863 desc_ioc_state, ioc_status, smid);
3864 pr_warn(MPT3SAS_FMT
3865 "\trequest_len(%d), underflow(%d), resid(%d)\n",
3866 ioc->name, scsi_bufflen(scmd), scmd->underflow,
3867 scsi_get_resid(scmd));
3868 pr_warn(MPT3SAS_FMT
3869 "\ttag(%d), transfer_count(%d), sc->result(0x%08x)\n",
3870 ioc->name, le16_to_cpu(mpi_reply->TaskTag),
3871 le32_to_cpu(mpi_reply->TransferCount), scmd->result);
3872 pr_warn(MPT3SAS_FMT
3873 "\tscsi_status(%s)(0x%02x), scsi_state(%s)(0x%02x)\n",
3874 ioc->name, desc_scsi_status,
3875 scsi_status, desc_scsi_state, scsi_state);
3876
3877 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
3878 struct sense_info data;
3879 _scsih_normalize_sense(scmd->sense_buffer, &data);
3880 pr_warn(MPT3SAS_FMT
3881 "\t[sense_key,asc,ascq]: [0x%02x,0x%02x,0x%02x], count(%d)\n",
3882 ioc->name, data.skey,
3883 data.asc, data.ascq, le32_to_cpu(mpi_reply->SenseCount));
3884 }
3885
3886 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
3887 response_info = le32_to_cpu(mpi_reply->ResponseInfo);
3888 response_bytes = (u8 *)&response_info;
3889 _scsih_response_code(ioc, response_bytes[0]);
3890 }
3891}
3892#endif
3893
3894/**
3895 * _scsih_turn_on_fault_led - illuminate Fault LED
3896 * @ioc: per adapter object
3897 * @handle: device handle
3898 * Context: process
3899 *
3900 * Return nothing.
3901 */
3902static void
3903_scsih_turn_on_fault_led(struct MPT3SAS_ADAPTER *ioc, u16 handle)
3904{
3905 Mpi2SepReply_t mpi_reply;
3906 Mpi2SepRequest_t mpi_request;
3907
3908 memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t));
3909 mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
3910 mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS;
3911 mpi_request.SlotStatus =
3912 cpu_to_le32(MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
3913 mpi_request.DevHandle = cpu_to_le16(handle);
3914 mpi_request.Flags = MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS;
3915 if ((mpt3sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
3916 &mpi_request)) != 0) {
3917 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", ioc->name,
3918 __FILE__, __LINE__, __func__);
3919 return;
3920 }
3921
3922 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) {
3923 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3924 "enclosure_processor: ioc_status (0x%04x), loginfo(0x%08x)\n",
3925 ioc->name, le16_to_cpu(mpi_reply.IOCStatus),
3926 le32_to_cpu(mpi_reply.IOCLogInfo)));
3927 return;
3928 }
3929}
3930
3931/**
3932 * _scsih_send_event_to_turn_on_fault_led - fire delayed event
3933 * @ioc: per adapter object
3934 * @handle: device handle
3935 * Context: interrupt.
3936 *
3937 * Return nothing.
3938 */
3939static void
3940_scsih_send_event_to_turn_on_fault_led(struct MPT3SAS_ADAPTER *ioc, u16 handle)
3941{
3942 struct fw_event_work *fw_event;
3943
3944 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
3945 if (!fw_event)
3946 return;
3947 fw_event->event = MPT3SAS_TURN_ON_FAULT_LED;
3948 fw_event->device_handle = handle;
3949 fw_event->ioc = ioc;
3950 _scsih_fw_event_add(ioc, fw_event);
3951}
3952
3953/**
3954 * _scsih_smart_predicted_fault - process smart errors
3955 * @ioc: per adapter object
3956 * @handle: device handle
3957 * Context: interrupt.
3958 *
3959 * Return nothing.
3960 */
3961static void
3962_scsih_smart_predicted_fault(struct MPT3SAS_ADAPTER *ioc, u16 handle)
3963{
3964 struct scsi_target *starget;
3965 struct MPT3SAS_TARGET *sas_target_priv_data;
3966 Mpi2EventNotificationReply_t *event_reply;
3967 Mpi2EventDataSasDeviceStatusChange_t *event_data;
3968 struct _sas_device *sas_device;
3969 ssize_t sz;
3970 unsigned long flags;
3971
3972 /* only handle non-raid devices */
3973 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3974 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
3975 if (!sas_device) {
3976 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3977 return;
3978 }
3979 starget = sas_device->starget;
3980 sas_target_priv_data = starget->hostdata;
3981
3982 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) ||
3983 ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) {
3984 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3985 return;
3986 }
3987 starget_printk(KERN_WARNING, starget, "predicted fault\n");
3988 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3989
3990 if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM)
3991 _scsih_send_event_to_turn_on_fault_led(ioc, handle);
3992
3993 /* insert into event log */
3994 sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
3995 sizeof(Mpi2EventDataSasDeviceStatusChange_t);
3996 event_reply = kzalloc(sz, GFP_KERNEL);
3997 if (!event_reply) {
3998 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
3999 ioc->name, __FILE__, __LINE__, __func__);
4000 return;
4001 }
4002
4003 event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
4004 event_reply->Event =
4005 cpu_to_le16(MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
4006 event_reply->MsgLength = sz/4;
4007 event_reply->EventDataLength =
4008 cpu_to_le16(sizeof(Mpi2EventDataSasDeviceStatusChange_t)/4);
4009 event_data = (Mpi2EventDataSasDeviceStatusChange_t *)
4010 event_reply->EventData;
4011 event_data->ReasonCode = MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA;
4012 event_data->ASC = 0x5D;
4013 event_data->DevHandle = cpu_to_le16(handle);
4014 event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address);
4015 mpt3sas_ctl_add_to_event_log(ioc, event_reply);
4016 kfree(event_reply);
4017}
4018
4019/**
4020 * _scsih_io_done - scsi request callback
4021 * @ioc: per adapter object
4022 * @smid: system request message index
4023 * @msix_index: MSIX table index supplied by the OS
4024 * @reply: reply message frame(lower 32bit addr)
4025 *
4026 * Callback handler when using _scsih_qcmd.
4027 *
4028 * Return 1 meaning mf should be freed from _base_interrupt
4029 * 0 means the mf is freed from this function.
4030 */
4031static u8
4032_scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
4033{
4034 Mpi2SCSIIORequest_t *mpi_request;
4035 Mpi2SCSIIOReply_t *mpi_reply;
4036 struct scsi_cmnd *scmd;
4037 u16 ioc_status;
4038 u32 xfer_cnt;
4039 u8 scsi_state;
4040 u8 scsi_status;
4041 u32 log_info;
4042 struct MPT3SAS_DEVICE *sas_device_priv_data;
4043 u32 response_code = 0;
4044
4045 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
4046 scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
4047 if (scmd == NULL)
4048 return 1;
4049
4050 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
4051
4052 if (mpi_reply == NULL) {
4053 scmd->result = DID_OK << 16;
4054 goto out;
4055 }
4056
4057 sas_device_priv_data = scmd->device->hostdata;
4058 if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
4059 sas_device_priv_data->sas_target->deleted) {
4060 scmd->result = DID_NO_CONNECT << 16;
4061 goto out;
4062 }
4063 ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
4064
4065 /* turning off TLR */
4066 scsi_state = mpi_reply->SCSIState;
4067 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
4068 response_code =
4069 le32_to_cpu(mpi_reply->ResponseInfo) & 0xFF;
4070 if (!sas_device_priv_data->tlr_snoop_check) {
4071 sas_device_priv_data->tlr_snoop_check++;
4072 if ((sas_device_priv_data->flags & MPT_DEVICE_TLR_ON) &&
4073 response_code == MPI2_SCSITASKMGMT_RSP_INVALID_FRAME)
4074 sas_device_priv_data->flags &=
4075 ~MPT_DEVICE_TLR_ON;
4076 }
4077
4078 xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
4079 scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
4080 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
4081 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
4082 else
4083 log_info = 0;
4084 ioc_status &= MPI2_IOCSTATUS_MASK;
4085 scsi_status = mpi_reply->SCSIStatus;
4086
4087 if (ioc_status == MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
4088 (scsi_status == MPI2_SCSI_STATUS_BUSY ||
4089 scsi_status == MPI2_SCSI_STATUS_RESERVATION_CONFLICT ||
4090 scsi_status == MPI2_SCSI_STATUS_TASK_SET_FULL)) {
4091 ioc_status = MPI2_IOCSTATUS_SUCCESS;
4092 }
4093
4094 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
4095 struct sense_info data;
4096 const void *sense_data = mpt3sas_base_get_sense_buffer(ioc,
4097 smid);
4098 u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
4099 le32_to_cpu(mpi_reply->SenseCount));
4100 memcpy(scmd->sense_buffer, sense_data, sz);
4101 _scsih_normalize_sense(scmd->sense_buffer, &data);
4102 /* failure prediction threshold exceeded */
4103 if (data.asc == 0x5D)
4104 _scsih_smart_predicted_fault(ioc,
4105 le16_to_cpu(mpi_reply->DevHandle));
4106 mpt3sas_trigger_scsi(ioc, data.skey, data.asc, data.ascq);
4107 }
4108
4109 switch (ioc_status) {
4110 case MPI2_IOCSTATUS_BUSY:
4111 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
4112 scmd->result = SAM_STAT_BUSY;
4113 break;
4114
4115 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
4116 scmd->result = DID_NO_CONNECT << 16;
4117 break;
4118
4119 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
4120 if (sas_device_priv_data->block) {
4121 scmd->result = DID_TRANSPORT_DISRUPTED << 16;
4122 goto out;
4123 }
4124 if (log_info == 0x31110630) {
4125 if (scmd->retries > 2) {
4126 scmd->result = DID_NO_CONNECT << 16;
4127 scsi_device_set_state(scmd->device,
4128 SDEV_OFFLINE);
4129 } else {
4130 scmd->result = DID_SOFT_ERROR << 16;
4131 scmd->device->expecting_cc_ua = 1;
4132 }
4133 break;
4134 }
4135 scmd->result = DID_SOFT_ERROR << 16;
4136 break;
4137 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
4138 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
4139 scmd->result = DID_RESET << 16;
4140 break;
4141
4142 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
4143 if ((xfer_cnt == 0) || (scmd->underflow > xfer_cnt))
4144 scmd->result = DID_SOFT_ERROR << 16;
4145 else
4146 scmd->result = (DID_OK << 16) | scsi_status;
4147 break;
4148
4149 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
4150 scmd->result = (DID_OK << 16) | scsi_status;
4151
4152 if ((scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID))
4153 break;
4154
4155 if (xfer_cnt < scmd->underflow) {
4156 if (scsi_status == SAM_STAT_BUSY)
4157 scmd->result = SAM_STAT_BUSY;
4158 else
4159 scmd->result = DID_SOFT_ERROR << 16;
4160 } else if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
4161 MPI2_SCSI_STATE_NO_SCSI_STATUS))
4162 scmd->result = DID_SOFT_ERROR << 16;
4163 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
4164 scmd->result = DID_RESET << 16;
4165 else if (!xfer_cnt && scmd->cmnd[0] == REPORT_LUNS) {
4166 mpi_reply->SCSIState = MPI2_SCSI_STATE_AUTOSENSE_VALID;
4167 mpi_reply->SCSIStatus = SAM_STAT_CHECK_CONDITION;
4168 scmd->result = (DRIVER_SENSE << 24) |
4169 SAM_STAT_CHECK_CONDITION;
4170 scmd->sense_buffer[0] = 0x70;
4171 scmd->sense_buffer[2] = ILLEGAL_REQUEST;
4172 scmd->sense_buffer[12] = 0x20;
4173 scmd->sense_buffer[13] = 0;
4174 }
4175 break;
4176
4177 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
4178 scsi_set_resid(scmd, 0);
4179 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
4180 case MPI2_IOCSTATUS_SUCCESS:
4181 scmd->result = (DID_OK << 16) | scsi_status;
4182 if (response_code ==
4183 MPI2_SCSITASKMGMT_RSP_INVALID_FRAME ||
4184 (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
4185 MPI2_SCSI_STATE_NO_SCSI_STATUS)))
4186 scmd->result = DID_SOFT_ERROR << 16;
4187 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
4188 scmd->result = DID_RESET << 16;
4189 break;
4190
4191 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
4192 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
4193 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
4194 _scsih_eedp_error_handling(scmd, ioc_status);
4195 break;
4196
4197 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
4198 case MPI2_IOCSTATUS_INVALID_FUNCTION:
4199 case MPI2_IOCSTATUS_INVALID_SGL:
4200 case MPI2_IOCSTATUS_INTERNAL_ERROR:
4201 case MPI2_IOCSTATUS_INVALID_FIELD:
4202 case MPI2_IOCSTATUS_INVALID_STATE:
4203 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
4204 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
4205 default:
4206 scmd->result = DID_SOFT_ERROR << 16;
4207 break;
4208
4209 }
4210
4211#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
4212 if (scmd->result && (ioc->logging_level & MPT_DEBUG_REPLY))
4213 _scsih_scsi_ioc_info(ioc , scmd, mpi_reply, smid);
4214#endif
4215
4216 out:
4217
4218 scsi_dma_unmap(scmd);
4219
4220 scmd->scsi_done(scmd);
4221 return 1;
4222}
4223
4224/**
4225 * _scsih_sas_host_refresh - refreshing sas host object contents
4226 * @ioc: per adapter object
4227 * Context: user
4228 *
4229 * During port enable, fw will send topology events for every device. Its
4230 * possible that the handles may change from the previous setting, so this
4231 * code keeping handles updating if changed.
4232 *
4233 * Return nothing.
4234 */
4235static void
4236_scsih_sas_host_refresh(struct MPT3SAS_ADAPTER *ioc)
4237{
4238 u16 sz;
4239 u16 ioc_status;
4240 int i;
4241 Mpi2ConfigReply_t mpi_reply;
4242 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
4243 u16 attached_handle;
4244 u8 link_rate;
4245
4246 dtmprintk(ioc, pr_info(MPT3SAS_FMT
4247 "updating handles for sas_host(0x%016llx)\n",
4248 ioc->name, (unsigned long long)ioc->sas_hba.sas_address));
4249
4250 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys
4251 * sizeof(Mpi2SasIOUnit0PhyData_t));
4252 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
4253 if (!sas_iounit_pg0) {
4254 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4255 ioc->name, __FILE__, __LINE__, __func__);
4256 return;
4257 }
4258
4259 if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
4260 sas_iounit_pg0, sz)) != 0)
4261 goto out;
4262 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
4263 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
4264 goto out;
4265 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
4266 link_rate = sas_iounit_pg0->PhyData[i].NegotiatedLinkRate >> 4;
4267 if (i == 0)
4268 ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
4269 PhyData[0].ControllerDevHandle);
4270 ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
4271 attached_handle = le16_to_cpu(sas_iounit_pg0->PhyData[i].
4272 AttachedDevHandle);
4273 if (attached_handle && link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
4274 link_rate = MPI2_SAS_NEG_LINK_RATE_1_5;
4275 mpt3sas_transport_update_links(ioc, ioc->sas_hba.sas_address,
4276 attached_handle, i, link_rate);
4277 }
4278 out:
4279 kfree(sas_iounit_pg0);
4280}
4281
4282/**
4283 * _scsih_sas_host_add - create sas host object
4284 * @ioc: per adapter object
4285 *
4286 * Creating host side data object, stored in ioc->sas_hba
4287 *
4288 * Return nothing.
4289 */
4290static void
4291_scsih_sas_host_add(struct MPT3SAS_ADAPTER *ioc)
4292{
4293 int i;
4294 Mpi2ConfigReply_t mpi_reply;
4295 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
4296 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
4297 Mpi2SasPhyPage0_t phy_pg0;
4298 Mpi2SasDevicePage0_t sas_device_pg0;
4299 Mpi2SasEnclosurePage0_t enclosure_pg0;
4300 u16 ioc_status;
4301 u16 sz;
4302 u8 device_missing_delay;
4303
4304 mpt3sas_config_get_number_hba_phys(ioc, &ioc->sas_hba.num_phys);
4305 if (!ioc->sas_hba.num_phys) {
4306 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4307 ioc->name, __FILE__, __LINE__, __func__);
4308 return;
4309 }
4310
4311 /* sas_iounit page 0 */
4312 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys *
4313 sizeof(Mpi2SasIOUnit0PhyData_t));
4314 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
4315 if (!sas_iounit_pg0) {
4316 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4317 ioc->name, __FILE__, __LINE__, __func__);
4318 return;
4319 }
4320 if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
4321 sas_iounit_pg0, sz))) {
4322 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4323 ioc->name, __FILE__, __LINE__, __func__);
4324 goto out;
4325 }
4326 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4327 MPI2_IOCSTATUS_MASK;
4328 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4329 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4330 ioc->name, __FILE__, __LINE__, __func__);
4331 goto out;
4332 }
4333
4334 /* sas_iounit page 1 */
4335 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
4336 sizeof(Mpi2SasIOUnit1PhyData_t));
4337 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
4338 if (!sas_iounit_pg1) {
4339 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4340 ioc->name, __FILE__, __LINE__, __func__);
4341 goto out;
4342 }
4343 if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
4344 sas_iounit_pg1, sz))) {
4345 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4346 ioc->name, __FILE__, __LINE__, __func__);
4347 goto out;
4348 }
4349 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4350 MPI2_IOCSTATUS_MASK;
4351 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4352 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4353 ioc->name, __FILE__, __LINE__, __func__);
4354 goto out;
4355 }
4356
4357 ioc->io_missing_delay =
4358 sas_iounit_pg1->IODeviceMissingDelay;
4359 device_missing_delay =
4360 sas_iounit_pg1->ReportDeviceMissingDelay;
4361 if (device_missing_delay & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
4362 ioc->device_missing_delay = (device_missing_delay &
4363 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
4364 else
4365 ioc->device_missing_delay = device_missing_delay &
4366 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
4367
4368 ioc->sas_hba.parent_dev = &ioc->shost->shost_gendev;
4369 ioc->sas_hba.phy = kcalloc(ioc->sas_hba.num_phys,
4370 sizeof(struct _sas_phy), GFP_KERNEL);
4371 if (!ioc->sas_hba.phy) {
4372 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4373 ioc->name, __FILE__, __LINE__, __func__);
4374 goto out;
4375 }
4376 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
4377 if ((mpt3sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
4378 i))) {
4379 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4380 ioc->name, __FILE__, __LINE__, __func__);
4381 goto out;
4382 }
4383 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4384 MPI2_IOCSTATUS_MASK;
4385 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4386 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4387 ioc->name, __FILE__, __LINE__, __func__);
4388 goto out;
4389 }
4390
4391 if (i == 0)
4392 ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
4393 PhyData[0].ControllerDevHandle);
4394 ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
4395 ioc->sas_hba.phy[i].phy_id = i;
4396 mpt3sas_transport_add_host_phy(ioc, &ioc->sas_hba.phy[i],
4397 phy_pg0, ioc->sas_hba.parent_dev);
4398 }
4399 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
4400 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.handle))) {
4401 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4402 ioc->name, __FILE__, __LINE__, __func__);
4403 goto out;
4404 }
4405 ioc->sas_hba.enclosure_handle =
4406 le16_to_cpu(sas_device_pg0.EnclosureHandle);
4407 ioc->sas_hba.sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4408 pr_info(MPT3SAS_FMT
4409 "host_add: handle(0x%04x), sas_addr(0x%016llx), phys(%d)\n",
4410 ioc->name, ioc->sas_hba.handle,
4411 (unsigned long long) ioc->sas_hba.sas_address,
4412 ioc->sas_hba.num_phys) ;
4413
4414 if (ioc->sas_hba.enclosure_handle) {
4415 if (!(mpt3sas_config_get_enclosure_pg0(ioc, &mpi_reply,
4416 &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
4417 ioc->sas_hba.enclosure_handle)))
4418 ioc->sas_hba.enclosure_logical_id =
4419 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
4420 }
4421
4422 out:
4423 kfree(sas_iounit_pg1);
4424 kfree(sas_iounit_pg0);
4425}
4426
4427/**
4428 * _scsih_expander_add - creating expander object
4429 * @ioc: per adapter object
4430 * @handle: expander handle
4431 *
4432 * Creating expander object, stored in ioc->sas_expander_list.
4433 *
4434 * Return 0 for success, else error.
4435 */
4436static int
4437_scsih_expander_add(struct MPT3SAS_ADAPTER *ioc, u16 handle)
4438{
4439 struct _sas_node *sas_expander;
4440 Mpi2ConfigReply_t mpi_reply;
4441 Mpi2ExpanderPage0_t expander_pg0;
4442 Mpi2ExpanderPage1_t expander_pg1;
4443 Mpi2SasEnclosurePage0_t enclosure_pg0;
4444 u32 ioc_status;
4445 u16 parent_handle;
4446 u64 sas_address, sas_address_parent = 0;
4447 int i;
4448 unsigned long flags;
4449 struct _sas_port *mpt3sas_port = NULL;
4450
4451 int rc = 0;
4452
4453 if (!handle)
4454 return -1;
4455
4456 if (ioc->shost_recovery || ioc->pci_error_recovery)
4457 return -1;
4458
4459 if ((mpt3sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
4460 MPI2_SAS_EXPAND_PGAD_FORM_HNDL, handle))) {
4461 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4462 ioc->name, __FILE__, __LINE__, __func__);
4463 return -1;
4464 }
4465
4466 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4467 MPI2_IOCSTATUS_MASK;
4468 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4469 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4470 ioc->name, __FILE__, __LINE__, __func__);
4471 return -1;
4472 }
4473
4474 /* handle out of order topology events */
4475 parent_handle = le16_to_cpu(expander_pg0.ParentDevHandle);
4476 if (_scsih_get_sas_address(ioc, parent_handle, &sas_address_parent)
4477 != 0) {
4478 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4479 ioc->name, __FILE__, __LINE__, __func__);
4480 return -1;
4481 }
4482 if (sas_address_parent != ioc->sas_hba.sas_address) {
4483 spin_lock_irqsave(&ioc->sas_node_lock, flags);
4484 sas_expander = mpt3sas_scsih_expander_find_by_sas_address(ioc,
4485 sas_address_parent);
4486 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4487 if (!sas_expander) {
4488 rc = _scsih_expander_add(ioc, parent_handle);
4489 if (rc != 0)
4490 return rc;
4491 }
4492 }
4493
4494 spin_lock_irqsave(&ioc->sas_node_lock, flags);
4495 sas_address = le64_to_cpu(expander_pg0.SASAddress);
4496 sas_expander = mpt3sas_scsih_expander_find_by_sas_address(ioc,
4497 sas_address);
4498 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4499
4500 if (sas_expander)
4501 return 0;
4502
4503 sas_expander = kzalloc(sizeof(struct _sas_node),
4504 GFP_KERNEL);
4505 if (!sas_expander) {
4506 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4507 ioc->name, __FILE__, __LINE__, __func__);
4508 return -1;
4509 }
4510
4511 sas_expander->handle = handle;
4512 sas_expander->num_phys = expander_pg0.NumPhys;
4513 sas_expander->sas_address_parent = sas_address_parent;
4514 sas_expander->sas_address = sas_address;
4515
4516 pr_info(MPT3SAS_FMT "expander_add: handle(0x%04x)," \
4517 " parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n", ioc->name,
4518 handle, parent_handle, (unsigned long long)
4519 sas_expander->sas_address, sas_expander->num_phys);
4520
4521 if (!sas_expander->num_phys)
4522 goto out_fail;
4523 sas_expander->phy = kcalloc(sas_expander->num_phys,
4524 sizeof(struct _sas_phy), GFP_KERNEL);
4525 if (!sas_expander->phy) {
4526 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4527 ioc->name, __FILE__, __LINE__, __func__);
4528 rc = -1;
4529 goto out_fail;
4530 }
4531
4532 INIT_LIST_HEAD(&sas_expander->sas_port_list);
4533 mpt3sas_port = mpt3sas_transport_port_add(ioc, handle,
4534 sas_address_parent);
4535 if (!mpt3sas_port) {
4536 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4537 ioc->name, __FILE__, __LINE__, __func__);
4538 rc = -1;
4539 goto out_fail;
4540 }
4541 sas_expander->parent_dev = &mpt3sas_port->rphy->dev;
4542
4543 for (i = 0 ; i < sas_expander->num_phys ; i++) {
4544 if ((mpt3sas_config_get_expander_pg1(ioc, &mpi_reply,
4545 &expander_pg1, i, handle))) {
4546 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4547 ioc->name, __FILE__, __LINE__, __func__);
4548 rc = -1;
4549 goto out_fail;
4550 }
4551 sas_expander->phy[i].handle = handle;
4552 sas_expander->phy[i].phy_id = i;
4553
4554 if ((mpt3sas_transport_add_expander_phy(ioc,
4555 &sas_expander->phy[i], expander_pg1,
4556 sas_expander->parent_dev))) {
4557 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4558 ioc->name, __FILE__, __LINE__, __func__);
4559 rc = -1;
4560 goto out_fail;
4561 }
4562 }
4563
4564 if (sas_expander->enclosure_handle) {
4565 if (!(mpt3sas_config_get_enclosure_pg0(ioc, &mpi_reply,
4566 &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
4567 sas_expander->enclosure_handle)))
4568 sas_expander->enclosure_logical_id =
4569 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
4570 }
4571
4572 _scsih_expander_node_add(ioc, sas_expander);
4573 return 0;
4574
4575 out_fail:
4576
4577 if (mpt3sas_port)
4578 mpt3sas_transport_port_remove(ioc, sas_expander->sas_address,
4579 sas_address_parent);
4580 kfree(sas_expander);
4581 return rc;
4582}
4583
4584/**
4585 * mpt3sas_expander_remove - removing expander object
4586 * @ioc: per adapter object
4587 * @sas_address: expander sas_address
4588 *
4589 * Return nothing.
4590 */
4591void
4592mpt3sas_expander_remove(struct MPT3SAS_ADAPTER *ioc, u64 sas_address)
4593{
4594 struct _sas_node *sas_expander;
4595 unsigned long flags;
4596
4597 if (ioc->shost_recovery)
4598 return;
4599
4600 spin_lock_irqsave(&ioc->sas_node_lock, flags);
4601 sas_expander = mpt3sas_scsih_expander_find_by_sas_address(ioc,
4602 sas_address);
4603 if (sas_expander)
4604 list_del(&sas_expander->list);
4605 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4606 if (sas_expander)
4607 _scsih_expander_node_remove(ioc, sas_expander);
4608}
4609
4610/**
4611 * _scsih_done - internal SCSI_IO callback handler.
4612 * @ioc: per adapter object
4613 * @smid: system request message index
4614 * @msix_index: MSIX table index supplied by the OS
4615 * @reply: reply message frame(lower 32bit addr)
4616 *
4617 * Callback handler when sending internal generated SCSI_IO.
4618 * The callback index passed is `ioc->scsih_cb_idx`
4619 *
4620 * Return 1 meaning mf should be freed from _base_interrupt
4621 * 0 means the mf is freed from this function.
4622 */
4623static u8
4624_scsih_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
4625{
4626 MPI2DefaultReply_t *mpi_reply;
4627
4628 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
4629 if (ioc->scsih_cmds.status == MPT3_CMD_NOT_USED)
4630 return 1;
4631 if (ioc->scsih_cmds.smid != smid)
4632 return 1;
4633 ioc->scsih_cmds.status |= MPT3_CMD_COMPLETE;
4634 if (mpi_reply) {
4635 memcpy(ioc->scsih_cmds.reply, mpi_reply,
4636 mpi_reply->MsgLength*4);
4637 ioc->scsih_cmds.status |= MPT3_CMD_REPLY_VALID;
4638 }
4639 ioc->scsih_cmds.status &= ~MPT3_CMD_PENDING;
4640 complete(&ioc->scsih_cmds.done);
4641 return 1;
4642}
4643
4644
4645
4646
4647#define MPT3_MAX_LUNS (255)
4648
4649
4650/**
4651 * _scsih_check_access_status - check access flags
4652 * @ioc: per adapter object
4653 * @sas_address: sas address
4654 * @handle: sas device handle
4655 * @access_flags: errors returned during discovery of the device
4656 *
4657 * Return 0 for success, else failure
4658 */
4659static u8
4660_scsih_check_access_status(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
4661 u16 handle, u8 access_status)
4662{
4663 u8 rc = 1;
4664 char *desc = NULL;
4665
4666 switch (access_status) {
4667 case MPI2_SAS_DEVICE0_ASTATUS_NO_ERRORS:
4668 case MPI2_SAS_DEVICE0_ASTATUS_SATA_NEEDS_INITIALIZATION:
4669 rc = 0;
4670 break;
4671 case MPI2_SAS_DEVICE0_ASTATUS_SATA_CAPABILITY_FAILED:
4672 desc = "sata capability failed";
4673 break;
4674 case MPI2_SAS_DEVICE0_ASTATUS_SATA_AFFILIATION_CONFLICT:
4675 desc = "sata affiliation conflict";
4676 break;
4677 case MPI2_SAS_DEVICE0_ASTATUS_ROUTE_NOT_ADDRESSABLE:
4678 desc = "route not addressable";
4679 break;
4680 case MPI2_SAS_DEVICE0_ASTATUS_SMP_ERROR_NOT_ADDRESSABLE:
4681 desc = "smp error not addressable";
4682 break;
4683 case MPI2_SAS_DEVICE0_ASTATUS_DEVICE_BLOCKED:
4684 desc = "device blocked";
4685 break;
4686 case MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED:
4687 case MPI2_SAS_DEVICE0_ASTATUS_SIF_UNKNOWN:
4688 case MPI2_SAS_DEVICE0_ASTATUS_SIF_AFFILIATION_CONFLICT:
4689 case MPI2_SAS_DEVICE0_ASTATUS_SIF_DIAG:
4690 case MPI2_SAS_DEVICE0_ASTATUS_SIF_IDENTIFICATION:
4691 case MPI2_SAS_DEVICE0_ASTATUS_SIF_CHECK_POWER:
4692 case MPI2_SAS_DEVICE0_ASTATUS_SIF_PIO_SN:
4693 case MPI2_SAS_DEVICE0_ASTATUS_SIF_MDMA_SN:
4694 case MPI2_SAS_DEVICE0_ASTATUS_SIF_UDMA_SN:
4695 case MPI2_SAS_DEVICE0_ASTATUS_SIF_ZONING_VIOLATION:
4696 case MPI2_SAS_DEVICE0_ASTATUS_SIF_NOT_ADDRESSABLE:
4697 case MPI2_SAS_DEVICE0_ASTATUS_SIF_MAX:
4698 desc = "sata initialization failed";
4699 break;
4700 default:
4701 desc = "unknown";
4702 break;
4703 }
4704
4705 if (!rc)
4706 return 0;
4707
4708 pr_err(MPT3SAS_FMT
4709 "discovery errors(%s): sas_address(0x%016llx), handle(0x%04x)\n",
4710 ioc->name, desc, (unsigned long long)sas_address, handle);
4711 return rc;
4712}
4713
4714/**
4715 * _scsih_check_device - checking device responsiveness
4716 * @ioc: per adapter object
4717 * @parent_sas_address: sas address of parent expander or sas host
4718 * @handle: attached device handle
4719 * @phy_numberv: phy number
4720 * @link_rate: new link rate
4721 *
4722 * Returns nothing.
4723 */
4724static void
4725_scsih_check_device(struct MPT3SAS_ADAPTER *ioc,
4726 u64 parent_sas_address, u16 handle, u8 phy_number, u8 link_rate)
4727{
4728 Mpi2ConfigReply_t mpi_reply;
4729 Mpi2SasDevicePage0_t sas_device_pg0;
4730 struct _sas_device *sas_device;
4731 u32 ioc_status;
4732 unsigned long flags;
4733 u64 sas_address;
4734 struct scsi_target *starget;
4735 struct MPT3SAS_TARGET *sas_target_priv_data;
4736 u32 device_info;
4737
4738
4739 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
4740 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle)))
4741 return;
4742
4743 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
4744 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
4745 return;
4746
4747 /* wide port handling ~ we need only handle device once for the phy that
4748 * is matched in sas device page zero
4749 */
4750 if (phy_number != sas_device_pg0.PhyNum)
4751 return;
4752
4753 /* check if this is end device */
4754 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
4755 if (!(_scsih_is_end_device(device_info)))
4756 return;
4757
4758 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4759 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4760 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
4761 sas_address);
4762
4763 if (!sas_device) {
4764 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4765 return;
4766 }
4767
4768 if (unlikely(sas_device->handle != handle)) {
4769 starget = sas_device->starget;
4770 sas_target_priv_data = starget->hostdata;
4771 starget_printk(KERN_INFO, starget,
4772 "handle changed from(0x%04x) to (0x%04x)!!!\n",
4773 sas_device->handle, handle);
4774 sas_target_priv_data->handle = handle;
4775 sas_device->handle = handle;
4776 }
4777
4778 /* check if device is present */
4779 if (!(le16_to_cpu(sas_device_pg0.Flags) &
4780 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
4781 pr_err(MPT3SAS_FMT
4782 "device is not present handle(0x%04x), flags!!!\n",
4783 ioc->name, handle);
4784 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4785 return;
4786 }
4787
4788 /* check if there were any issues with discovery */
4789 if (_scsih_check_access_status(ioc, sas_address, handle,
4790 sas_device_pg0.AccessStatus)) {
4791 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4792 return;
4793 }
4794
4795 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4796 _scsih_ublock_io_device(ioc, sas_address);
4797
4798}
4799
4800/**
4801 * _scsih_add_device - creating sas device object
4802 * @ioc: per adapter object
4803 * @handle: sas device handle
4804 * @phy_num: phy number end device attached to
4805 * @is_pd: is this hidden raid component
4806 *
4807 * Creating end device object, stored in ioc->sas_device_list.
4808 *
4809 * Returns 0 for success, non-zero for failure.
4810 */
4811static int
4812_scsih_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle, u8 phy_num,
4813 u8 is_pd)
4814{
4815 Mpi2ConfigReply_t mpi_reply;
4816 Mpi2SasDevicePage0_t sas_device_pg0;
4817 Mpi2SasEnclosurePage0_t enclosure_pg0;
4818 struct _sas_device *sas_device;
4819 u32 ioc_status;
4820 u64 sas_address;
4821 u32 device_info;
4822 unsigned long flags;
4823
4824 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
4825 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
4826 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4827 ioc->name, __FILE__, __LINE__, __func__);
4828 return -1;
4829 }
4830
4831 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4832 MPI2_IOCSTATUS_MASK;
4833 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4834 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4835 ioc->name, __FILE__, __LINE__, __func__);
4836 return -1;
4837 }
4838
4839 /* check if this is end device */
4840 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
4841 if (!(_scsih_is_end_device(device_info)))
4842 return -1;
4843 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4844
4845 /* check if device is present */
4846 if (!(le16_to_cpu(sas_device_pg0.Flags) &
4847 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
4848 pr_err(MPT3SAS_FMT "device is not present handle(0x04%x)!!!\n",
4849 ioc->name, handle);
4850 return -1;
4851 }
4852
4853 /* check if there were any issues with discovery */
4854 if (_scsih_check_access_status(ioc, sas_address, handle,
4855 sas_device_pg0.AccessStatus))
4856 return -1;
4857
4858 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4859 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
4860 sas_address);
4861 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4862
4863 if (sas_device)
4864 return -1;
4865
4866 sas_device = kzalloc(sizeof(struct _sas_device),
4867 GFP_KERNEL);
4868 if (!sas_device) {
4869 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4870 ioc->name, __FILE__, __LINE__, __func__);
4871 return 0;
4872 }
4873
4874 sas_device->handle = handle;
4875 if (_scsih_get_sas_address(ioc,
4876 le16_to_cpu(sas_device_pg0.ParentDevHandle),
4877 &sas_device->sas_address_parent) != 0)
4878 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4879 ioc->name, __FILE__, __LINE__, __func__);
4880 sas_device->enclosure_handle =
4881 le16_to_cpu(sas_device_pg0.EnclosureHandle);
4882 sas_device->slot =
4883 le16_to_cpu(sas_device_pg0.Slot);
4884 sas_device->device_info = device_info;
4885 sas_device->sas_address = sas_address;
4886 sas_device->phy = sas_device_pg0.PhyNum;
4887 sas_device->fast_path = (le16_to_cpu(sas_device_pg0.Flags) &
4888 MPI25_SAS_DEVICE0_FLAGS_FAST_PATH_CAPABLE) ? 1 : 0;
4889
4890 /* get enclosure_logical_id */
4891 if (sas_device->enclosure_handle && !(mpt3sas_config_get_enclosure_pg0(
4892 ioc, &mpi_reply, &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
4893 sas_device->enclosure_handle)))
4894 sas_device->enclosure_logical_id =
4895 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
4896
4897 /* get device name */
4898 sas_device->device_name = le64_to_cpu(sas_device_pg0.DeviceName);
4899
4900 if (ioc->wait_for_discovery_to_complete)
4901 _scsih_sas_device_init_add(ioc, sas_device);
4902 else
4903 _scsih_sas_device_add(ioc, sas_device);
4904
4905 return 0;
4906}
4907
4908/**
4909 * _scsih_remove_device - removing sas device object
4910 * @ioc: per adapter object
4911 * @sas_device_delete: the sas_device object
4912 *
4913 * Return nothing.
4914 */
4915static void
4916_scsih_remove_device(struct MPT3SAS_ADAPTER *ioc,
4917 struct _sas_device *sas_device)
4918{
4919 struct MPT3SAS_TARGET *sas_target_priv_data;
4920
4921
4922 dewtprintk(ioc, pr_info(MPT3SAS_FMT
4923 "%s: enter: handle(0x%04x), sas_addr(0x%016llx)\n",
4924 ioc->name, __func__,
4925 sas_device->handle, (unsigned long long)
4926 sas_device->sas_address));
4927
4928 if (sas_device->starget && sas_device->starget->hostdata) {
4929 sas_target_priv_data = sas_device->starget->hostdata;
4930 sas_target_priv_data->deleted = 1;
4931 _scsih_ublock_io_device(ioc, sas_device->sas_address);
4932 sas_target_priv_data->handle =
4933 MPT3SAS_INVALID_DEVICE_HANDLE;
4934 }
4935 mpt3sas_transport_port_remove(ioc,
4936 sas_device->sas_address,
4937 sas_device->sas_address_parent);
4938
4939 pr_info(MPT3SAS_FMT
4940 "removing handle(0x%04x), sas_addr(0x%016llx)\n",
4941 ioc->name, sas_device->handle,
4942 (unsigned long long) sas_device->sas_address);
4943
4944 dewtprintk(ioc, pr_info(MPT3SAS_FMT
4945 "%s: exit: handle(0x%04x), sas_addr(0x%016llx)\n",
4946 ioc->name, __func__,
4947 sas_device->handle, (unsigned long long)
4948 sas_device->sas_address));
4949
4950 kfree(sas_device);
4951}
4952
4953#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
4954/**
4955 * _scsih_sas_topology_change_event_debug - debug for topology event
4956 * @ioc: per adapter object
4957 * @event_data: event data payload
4958 * Context: user.
4959 */
4960static void
4961_scsih_sas_topology_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
4962 Mpi2EventDataSasTopologyChangeList_t *event_data)
4963{
4964 int i;
4965 u16 handle;
4966 u16 reason_code;
4967 u8 phy_number;
4968 char *status_str = NULL;
4969 u8 link_rate, prev_link_rate;
4970
4971 switch (event_data->ExpStatus) {
4972 case MPI2_EVENT_SAS_TOPO_ES_ADDED:
4973 status_str = "add";
4974 break;
4975 case MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING:
4976 status_str = "remove";
4977 break;
4978 case MPI2_EVENT_SAS_TOPO_ES_RESPONDING:
4979 case 0:
4980 status_str = "responding";
4981 break;
4982 case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
4983 status_str = "remove delay";
4984 break;
4985 default:
4986 status_str = "unknown status";
4987 break;
4988 }
4989 pr_info(MPT3SAS_FMT "sas topology change: (%s)\n",
4990 ioc->name, status_str);
4991 pr_info("\thandle(0x%04x), enclosure_handle(0x%04x) " \
4992 "start_phy(%02d), count(%d)\n",
4993 le16_to_cpu(event_data->ExpanderDevHandle),
4994 le16_to_cpu(event_data->EnclosureHandle),
4995 event_data->StartPhyNum, event_data->NumEntries);
4996 for (i = 0; i < event_data->NumEntries; i++) {
4997 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
4998 if (!handle)
4999 continue;
5000 phy_number = event_data->StartPhyNum + i;
5001 reason_code = event_data->PHY[i].PhyStatus &
5002 MPI2_EVENT_SAS_TOPO_RC_MASK;
5003 switch (reason_code) {
5004 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
5005 status_str = "target add";
5006 break;
5007 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
5008 status_str = "target remove";
5009 break;
5010 case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
5011 status_str = "delay target remove";
5012 break;
5013 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
5014 status_str = "link rate change";
5015 break;
5016 case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
5017 status_str = "target responding";
5018 break;
5019 default:
5020 status_str = "unknown";
5021 break;
5022 }
5023 link_rate = event_data->PHY[i].LinkRate >> 4;
5024 prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
5025 pr_info("\tphy(%02d), attached_handle(0x%04x): %s:" \
5026 " link rate: new(0x%02x), old(0x%02x)\n", phy_number,
5027 handle, status_str, link_rate, prev_link_rate);
5028
5029 }
5030}
5031#endif
5032
5033/**
5034 * _scsih_sas_topology_change_event - handle topology changes
5035 * @ioc: per adapter object
5036 * @fw_event: The fw_event_work object
5037 * Context: user.
5038 *
5039 */
5040static int
5041_scsih_sas_topology_change_event(struct MPT3SAS_ADAPTER *ioc,
5042 struct fw_event_work *fw_event)
5043{
5044 int i;
5045 u16 parent_handle, handle;
5046 u16 reason_code;
5047 u8 phy_number, max_phys;
5048 struct _sas_node *sas_expander;
5049 u64 sas_address;
5050 unsigned long flags;
5051 u8 link_rate, prev_link_rate;
5052 Mpi2EventDataSasTopologyChangeList_t *event_data = fw_event->event_data;
5053
5054#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
5055 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5056 _scsih_sas_topology_change_event_debug(ioc, event_data);
5057#endif
5058
5059 if (ioc->shost_recovery || ioc->remove_host || ioc->pci_error_recovery)
5060 return 0;
5061
5062 if (!ioc->sas_hba.num_phys)
5063 _scsih_sas_host_add(ioc);
5064 else
5065 _scsih_sas_host_refresh(ioc);
5066
5067 if (fw_event->ignore) {
5068 dewtprintk(ioc, pr_info(MPT3SAS_FMT
5069 "ignoring expander event\n", ioc->name));
5070 return 0;
5071 }
5072
5073 parent_handle = le16_to_cpu(event_data->ExpanderDevHandle);
5074
5075 /* handle expander add */
5076 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_ADDED)
5077 if (_scsih_expander_add(ioc, parent_handle) != 0)
5078 return 0;
5079
5080 spin_lock_irqsave(&ioc->sas_node_lock, flags);
5081 sas_expander = mpt3sas_scsih_expander_find_by_handle(ioc,
5082 parent_handle);
5083 if (sas_expander) {
5084 sas_address = sas_expander->sas_address;
5085 max_phys = sas_expander->num_phys;
5086 } else if (parent_handle < ioc->sas_hba.num_phys) {
5087 sas_address = ioc->sas_hba.sas_address;
5088 max_phys = ioc->sas_hba.num_phys;
5089 } else {
5090 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
5091 return 0;
5092 }
5093 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
5094
5095 /* handle siblings events */
5096 for (i = 0; i < event_data->NumEntries; i++) {
5097 if (fw_event->ignore) {
5098 dewtprintk(ioc, pr_info(MPT3SAS_FMT
5099 "ignoring expander event\n", ioc->name));
5100 return 0;
5101 }
5102 if (ioc->remove_host || ioc->pci_error_recovery)
5103 return 0;
5104 phy_number = event_data->StartPhyNum + i;
5105 if (phy_number >= max_phys)
5106 continue;
5107 reason_code = event_data->PHY[i].PhyStatus &
5108 MPI2_EVENT_SAS_TOPO_RC_MASK;
5109 if ((event_data->PHY[i].PhyStatus &
5110 MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT) && (reason_code !=
5111 MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING))
5112 continue;
5113 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
5114 if (!handle)
5115 continue;
5116 link_rate = event_data->PHY[i].LinkRate >> 4;
5117 prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
5118 switch (reason_code) {
5119 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
5120
5121 if (ioc->shost_recovery)
5122 break;
5123
5124 if (link_rate == prev_link_rate)
5125 break;
5126
5127 mpt3sas_transport_update_links(ioc, sas_address,
5128 handle, phy_number, link_rate);
5129
5130 if (link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
5131 break;
5132
5133 _scsih_check_device(ioc, sas_address, handle,
5134 phy_number, link_rate);
5135
5136
5137 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
5138
5139 if (ioc->shost_recovery)
5140 break;
5141
5142 mpt3sas_transport_update_links(ioc, sas_address,
5143 handle, phy_number, link_rate);
5144
5145 _scsih_add_device(ioc, handle, phy_number, 0);
5146
5147 break;
5148 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
5149
5150 _scsih_device_remove_by_handle(ioc, handle);
5151 break;
5152 }
5153 }
5154
5155 /* handle expander removal */
5156 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING &&
5157 sas_expander)
5158 mpt3sas_expander_remove(ioc, sas_address);
5159
5160 return 0;
5161}
5162
5163#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
5164/**
5165 * _scsih_sas_device_status_change_event_debug - debug for device event
5166 * @event_data: event data payload
5167 * Context: user.
5168 *
5169 * Return nothing.
5170 */
5171static void
5172_scsih_sas_device_status_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
5173 Mpi2EventDataSasDeviceStatusChange_t *event_data)
5174{
5175 char *reason_str = NULL;
5176
5177 switch (event_data->ReasonCode) {
5178 case MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA:
5179 reason_str = "smart data";
5180 break;
5181 case MPI2_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED:
5182 reason_str = "unsupported device discovered";
5183 break;
5184 case MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
5185 reason_str = "internal device reset";
5186 break;
5187 case MPI2_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL:
5188 reason_str = "internal task abort";
5189 break;
5190 case MPI2_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL:
5191 reason_str = "internal task abort set";
5192 break;
5193 case MPI2_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL:
5194 reason_str = "internal clear task set";
5195 break;
5196 case MPI2_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL:
5197 reason_str = "internal query task";
5198 break;
5199 case MPI2_EVENT_SAS_DEV_STAT_RC_SATA_INIT_FAILURE:
5200 reason_str = "sata init failure";
5201 break;
5202 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET:
5203 reason_str = "internal device reset complete";
5204 break;
5205 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_TASK_ABORT_INTERNAL:
5206 reason_str = "internal task abort complete";
5207 break;
5208 case MPI2_EVENT_SAS_DEV_STAT_RC_ASYNC_NOTIFICATION:
5209 reason_str = "internal async notification";
5210 break;
5211 case MPI2_EVENT_SAS_DEV_STAT_RC_EXPANDER_REDUCED_FUNCTIONALITY:
5212 reason_str = "expander reduced functionality";
5213 break;
5214 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_EXPANDER_REDUCED_FUNCTIONALITY:
5215 reason_str = "expander reduced functionality complete";
5216 break;
5217 default:
5218 reason_str = "unknown reason";
5219 break;
5220 }
5221 pr_info(MPT3SAS_FMT "device status change: (%s)\n"
5222 "\thandle(0x%04x), sas address(0x%016llx), tag(%d)",
5223 ioc->name, reason_str, le16_to_cpu(event_data->DevHandle),
5224 (unsigned long long)le64_to_cpu(event_data->SASAddress),
5225 le16_to_cpu(event_data->TaskTag));
5226 if (event_data->ReasonCode == MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA)
5227 pr_info(MPT3SAS_FMT ", ASC(0x%x), ASCQ(0x%x)\n", ioc->name,
5228 event_data->ASC, event_data->ASCQ);
5229 pr_info("\n");
5230}
5231#endif
5232
5233/**
5234 * _scsih_sas_device_status_change_event - handle device status change
5235 * @ioc: per adapter object
5236 * @fw_event: The fw_event_work object
5237 * Context: user.
5238 *
5239 * Return nothing.
5240 */
5241static void
5242_scsih_sas_device_status_change_event(struct MPT3SAS_ADAPTER *ioc,
5243 struct fw_event_work *fw_event)
5244{
5245 struct MPT3SAS_TARGET *target_priv_data;
5246 struct _sas_device *sas_device;
5247 u64 sas_address;
5248 unsigned long flags;
5249 Mpi2EventDataSasDeviceStatusChange_t *event_data =
5250 fw_event->event_data;
5251
5252#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
5253 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5254 _scsih_sas_device_status_change_event_debug(ioc,
5255 event_data);
5256#endif
5257
5258 /* In MPI Revision K (0xC), the internal device reset complete was
5259 * implemented, so avoid setting tm_busy flag for older firmware.
5260 */
5261 if ((ioc->facts.HeaderVersion >> 8) < 0xC)
5262 return;
5263
5264 if (event_data->ReasonCode !=
5265 MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET &&
5266 event_data->ReasonCode !=
5267 MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET)
5268 return;
5269
5270 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5271 sas_address = le64_to_cpu(event_data->SASAddress);
5272 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
5273 sas_address);
5274
5275 if (!sas_device || !sas_device->starget) {
5276 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5277 return;
5278 }
5279
5280 target_priv_data = sas_device->starget->hostdata;
5281 if (!target_priv_data) {
5282 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5283 return;
5284 }
5285
5286 if (event_data->ReasonCode ==
5287 MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET)
5288 target_priv_data->tm_busy = 1;
5289 else
5290 target_priv_data->tm_busy = 0;
5291 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5292}
5293
5294#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
5295/**
5296 * _scsih_sas_enclosure_dev_status_change_event_debug - debug for enclosure
5297 * event
5298 * @ioc: per adapter object
5299 * @event_data: event data payload
5300 * Context: user.
5301 *
5302 * Return nothing.
5303 */
5304static void
5305_scsih_sas_enclosure_dev_status_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
5306 Mpi2EventDataSasEnclDevStatusChange_t *event_data)
5307{
5308 char *reason_str = NULL;
5309
5310 switch (event_data->ReasonCode) {
5311 case MPI2_EVENT_SAS_ENCL_RC_ADDED:
5312 reason_str = "enclosure add";
5313 break;
5314 case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING:
5315 reason_str = "enclosure remove";
5316 break;
5317 default:
5318 reason_str = "unknown reason";
5319 break;
5320 }
5321
5322 pr_info(MPT3SAS_FMT "enclosure status change: (%s)\n"
5323 "\thandle(0x%04x), enclosure logical id(0x%016llx)"
5324 " number slots(%d)\n", ioc->name, reason_str,
5325 le16_to_cpu(event_data->EnclosureHandle),
5326 (unsigned long long)le64_to_cpu(event_data->EnclosureLogicalID),
5327 le16_to_cpu(event_data->StartSlot));
5328}
5329#endif
5330
5331/**
5332 * _scsih_sas_enclosure_dev_status_change_event - handle enclosure events
5333 * @ioc: per adapter object
5334 * @fw_event: The fw_event_work object
5335 * Context: user.
5336 *
5337 * Return nothing.
5338 */
5339static void
5340_scsih_sas_enclosure_dev_status_change_event(struct MPT3SAS_ADAPTER *ioc,
5341 struct fw_event_work *fw_event)
5342{
5343#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
5344 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5345 _scsih_sas_enclosure_dev_status_change_event_debug(ioc,
5346 fw_event->event_data);
5347#endif
5348}
5349
5350/**
5351 * _scsih_sas_broadcast_primitive_event - handle broadcast events
5352 * @ioc: per adapter object
5353 * @fw_event: The fw_event_work object
5354 * Context: user.
5355 *
5356 * Return nothing.
5357 */
5358static void
5359_scsih_sas_broadcast_primitive_event(struct MPT3SAS_ADAPTER *ioc,
5360 struct fw_event_work *fw_event)
5361{
5362 struct scsi_cmnd *scmd;
5363 struct scsi_device *sdev;
5364 u16 smid, handle;
5365 u32 lun;
5366 struct MPT3SAS_DEVICE *sas_device_priv_data;
5367 u32 termination_count;
5368 u32 query_count;
5369 Mpi2SCSITaskManagementReply_t *mpi_reply;
5370 Mpi2EventDataSasBroadcastPrimitive_t *event_data = fw_event->event_data;
5371 u16 ioc_status;
5372 unsigned long flags;
5373 int r;
5374 u8 max_retries = 0;
5375 u8 task_abort_retries;
5376
5377 mutex_lock(&ioc->tm_cmds.mutex);
5378 pr_info(MPT3SAS_FMT
5379 "%s: enter: phy number(%d), width(%d)\n",
5380 ioc->name, __func__, event_data->PhyNum,
5381 event_data->PortWidth);
5382
5383 _scsih_block_io_all_device(ioc);
5384
5385 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5386 mpi_reply = ioc->tm_cmds.reply;
5387 broadcast_aen_retry:
5388
5389 /* sanity checks for retrying this loop */
5390 if (max_retries++ == 5) {
5391 dewtprintk(ioc, pr_info(MPT3SAS_FMT "%s: giving up\n",
5392 ioc->name, __func__));
5393 goto out;
5394 } else if (max_retries > 1)
5395 dewtprintk(ioc, pr_info(MPT3SAS_FMT "%s: %d retry\n",
5396 ioc->name, __func__, max_retries - 1));
5397
5398 termination_count = 0;
5399 query_count = 0;
5400 for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
5401 if (ioc->shost_recovery)
5402 goto out;
5403 scmd = _scsih_scsi_lookup_get(ioc, smid);
5404 if (!scmd)
5405 continue;
5406 sdev = scmd->device;
5407 sas_device_priv_data = sdev->hostdata;
5408 if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
5409 continue;
5410 /* skip hidden raid components */
5411 if (sas_device_priv_data->sas_target->flags &
5412 MPT_TARGET_FLAGS_RAID_COMPONENT)
5413 continue;
5414 /* skip volumes */
5415 if (sas_device_priv_data->sas_target->flags &
5416 MPT_TARGET_FLAGS_VOLUME)
5417 continue;
5418
5419 handle = sas_device_priv_data->sas_target->handle;
5420 lun = sas_device_priv_data->lun;
5421 query_count++;
5422
5423 if (ioc->shost_recovery)
5424 goto out;
5425
5426 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
5427 r = mpt3sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
5428 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30, 0,
5429 TM_MUTEX_OFF);
5430 if (r == FAILED) {
5431 sdev_printk(KERN_WARNING, sdev,
5432 "mpt3sas_scsih_issue_tm: FAILED when sending "
5433 "QUERY_TASK: scmd(%p)\n", scmd);
5434 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5435 goto broadcast_aen_retry;
5436 }
5437 ioc_status = le16_to_cpu(mpi_reply->IOCStatus)
5438 & MPI2_IOCSTATUS_MASK;
5439 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
5440 sdev_printk(KERN_WARNING, sdev,
5441 "query task: FAILED with IOCSTATUS(0x%04x), scmd(%p)\n",
5442 ioc_status, scmd);
5443 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5444 goto broadcast_aen_retry;
5445 }
5446
5447 /* see if IO is still owned by IOC and target */
5448 if (mpi_reply->ResponseCode ==
5449 MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
5450 mpi_reply->ResponseCode ==
5451 MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC) {
5452 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5453 continue;
5454 }
5455 task_abort_retries = 0;
5456 tm_retry:
5457 if (task_abort_retries++ == 60) {
5458 dewtprintk(ioc, pr_info(MPT3SAS_FMT
5459 "%s: ABORT_TASK: giving up\n", ioc->name,
5460 __func__));
5461 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5462 goto broadcast_aen_retry;
5463 }
5464
5465 if (ioc->shost_recovery)
5466 goto out_no_lock;
5467
5468 r = mpt3sas_scsih_issue_tm(ioc, handle, sdev->channel, sdev->id,
5469 sdev->lun, MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30,
5470 scmd->serial_number, TM_MUTEX_OFF);
5471 if (r == FAILED) {
5472 sdev_printk(KERN_WARNING, sdev,
5473 "mpt3sas_scsih_issue_tm: ABORT_TASK: FAILED : "
5474 "scmd(%p)\n", scmd);
5475 goto tm_retry;
5476 }
5477
5478 if (task_abort_retries > 1)
5479 sdev_printk(KERN_WARNING, sdev,
5480 "mpt3sas_scsih_issue_tm: ABORT_TASK: RETRIES (%d):"
5481 " scmd(%p)\n",
5482 task_abort_retries - 1, scmd);
5483
5484 termination_count += le32_to_cpu(mpi_reply->TerminationCount);
5485 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5486 }
5487
5488 if (ioc->broadcast_aen_pending) {
5489 dewtprintk(ioc, pr_info(MPT3SAS_FMT
5490 "%s: loop back due to pending AEN\n",
5491 ioc->name, __func__));
5492 ioc->broadcast_aen_pending = 0;
5493 goto broadcast_aen_retry;
5494 }
5495
5496 out:
5497 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
5498 out_no_lock:
5499
5500 dewtprintk(ioc, pr_info(MPT3SAS_FMT
5501 "%s - exit, query_count = %d termination_count = %d\n",
5502 ioc->name, __func__, query_count, termination_count));
5503
5504 ioc->broadcast_aen_busy = 0;
5505 if (!ioc->shost_recovery)
5506 _scsih_ublock_io_all_device(ioc);
5507 mutex_unlock(&ioc->tm_cmds.mutex);
5508}
5509
5510/**
5511 * _scsih_sas_discovery_event - handle discovery events
5512 * @ioc: per adapter object
5513 * @fw_event: The fw_event_work object
5514 * Context: user.
5515 *
5516 * Return nothing.
5517 */
5518static void
5519_scsih_sas_discovery_event(struct MPT3SAS_ADAPTER *ioc,
5520 struct fw_event_work *fw_event)
5521{
5522 Mpi2EventDataSasDiscovery_t *event_data = fw_event->event_data;
5523
5524#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
5525 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) {
5526 pr_info(MPT3SAS_FMT "discovery event: (%s)", ioc->name,
5527 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
5528 "start" : "stop");
5529 if (event_data->DiscoveryStatus)
5530 pr_info("discovery_status(0x%08x)",
5531 le32_to_cpu(event_data->DiscoveryStatus));
5532 pr_info("\n");
5533 }
5534#endif
5535
5536 if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED &&
5537 !ioc->sas_hba.num_phys) {
5538 if (disable_discovery > 0 && ioc->shost_recovery) {
5539 /* Wait for the reset to complete */
5540 while (ioc->shost_recovery)
5541 ssleep(1);
5542 }
5543 _scsih_sas_host_add(ioc);
5544 }
5545}
5546
5547/**
5548 * _scsih_ir_fastpath - turn on fastpath for IR physdisk
5549 * @ioc: per adapter object
5550 * @handle: device handle for physical disk
5551 * @phys_disk_num: physical disk number
5552 *
5553 * Return 0 for success, else failure.
5554 */
5555static int
5556_scsih_ir_fastpath(struct MPT3SAS_ADAPTER *ioc, u16 handle, u8 phys_disk_num)
5557{
5558 Mpi2RaidActionRequest_t *mpi_request;
5559 Mpi2RaidActionReply_t *mpi_reply;
5560 u16 smid;
5561 u8 issue_reset = 0;
5562 int rc = 0;
5563 u16 ioc_status;
5564 u32 log_info;
5565
5566
5567 mutex_lock(&ioc->scsih_cmds.mutex);
5568
5569 if (ioc->scsih_cmds.status != MPT3_CMD_NOT_USED) {
5570 pr_err(MPT3SAS_FMT "%s: scsih_cmd in use\n",
5571 ioc->name, __func__);
5572 rc = -EAGAIN;
5573 goto out;
5574 }
5575 ioc->scsih_cmds.status = MPT3_CMD_PENDING;
5576
5577 smid = mpt3sas_base_get_smid(ioc, ioc->scsih_cb_idx);
5578 if (!smid) {
5579 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
5580 ioc->name, __func__);
5581 ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
5582 rc = -EAGAIN;
5583 goto out;
5584 }
5585
5586 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
5587 ioc->scsih_cmds.smid = smid;
5588 memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t));
5589
5590 mpi_request->Function = MPI2_FUNCTION_RAID_ACTION;
5591 mpi_request->Action = MPI2_RAID_ACTION_PHYSDISK_HIDDEN;
5592 mpi_request->PhysDiskNum = phys_disk_num;
5593
5594 dewtprintk(ioc, pr_info(MPT3SAS_FMT "IR RAID_ACTION: turning fast "\
5595 "path on for handle(0x%04x), phys_disk_num (0x%02x)\n", ioc->name,
5596 handle, phys_disk_num));
5597
5598 init_completion(&ioc->scsih_cmds.done);
5599 mpt3sas_base_put_smid_default(ioc, smid);
5600 wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
5601
5602 if (!(ioc->scsih_cmds.status & MPT3_CMD_COMPLETE)) {
5603 pr_err(MPT3SAS_FMT "%s: timeout\n",
5604 ioc->name, __func__);
5605 if (!(ioc->scsih_cmds.status & MPT3_CMD_RESET))
5606 issue_reset = 1;
5607 rc = -EFAULT;
5608 goto out;
5609 }
5610
5611 if (ioc->scsih_cmds.status & MPT3_CMD_REPLY_VALID) {
5612
5613 mpi_reply = ioc->scsih_cmds.reply;
5614 ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
5615 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
5616 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
5617 else
5618 log_info = 0;
5619 ioc_status &= MPI2_IOCSTATUS_MASK;
5620 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
5621 dewtprintk(ioc, pr_info(MPT3SAS_FMT
5622 "IR RAID_ACTION: failed: ioc_status(0x%04x), "
5623 "loginfo(0x%08x)!!!\n", ioc->name, ioc_status,
5624 log_info));
5625 rc = -EFAULT;
5626 } else
5627 dewtprintk(ioc, pr_info(MPT3SAS_FMT
5628 "IR RAID_ACTION: completed successfully\n",
5629 ioc->name));
5630 }
5631
5632 out:
5633 ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
5634 mutex_unlock(&ioc->scsih_cmds.mutex);
5635
5636 if (issue_reset)
5637 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
5638 FORCE_BIG_HAMMER);
5639 return rc;
5640}
5641
5642/**
5643 * _scsih_reprobe_lun - reprobing lun
5644 * @sdev: scsi device struct
5645 * @no_uld_attach: sdev->no_uld_attach flag setting
5646 *
5647 **/
5648static void
5649_scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach)
5650{
5651 int rc;
5652 sdev->no_uld_attach = no_uld_attach ? 1 : 0;
5653 sdev_printk(KERN_INFO, sdev, "%s raid component\n",
5654 sdev->no_uld_attach ? "hidding" : "exposing");
5655 rc = scsi_device_reprobe(sdev);
5656}
5657
5658/**
5659 * _scsih_sas_volume_add - add new volume
5660 * @ioc: per adapter object
5661 * @element: IR config element data
5662 * Context: user.
5663 *
5664 * Return nothing.
5665 */
5666static void
5667_scsih_sas_volume_add(struct MPT3SAS_ADAPTER *ioc,
5668 Mpi2EventIrConfigElement_t *element)
5669{
5670 struct _raid_device *raid_device;
5671 unsigned long flags;
5672 u64 wwid;
5673 u16 handle = le16_to_cpu(element->VolDevHandle);
5674 int rc;
5675
5676 mpt3sas_config_get_volume_wwid(ioc, handle, &wwid);
5677 if (!wwid) {
5678 pr_err(MPT3SAS_FMT
5679 "failure at %s:%d/%s()!\n", ioc->name,
5680 __FILE__, __LINE__, __func__);
5681 return;
5682 }
5683
5684 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5685 raid_device = _scsih_raid_device_find_by_wwid(ioc, wwid);
5686 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5687
5688 if (raid_device)
5689 return;
5690
5691 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
5692 if (!raid_device) {
5693 pr_err(MPT3SAS_FMT
5694 "failure at %s:%d/%s()!\n", ioc->name,
5695 __FILE__, __LINE__, __func__);
5696 return;
5697 }
5698
5699 raid_device->id = ioc->sas_id++;
5700 raid_device->channel = RAID_CHANNEL;
5701 raid_device->handle = handle;
5702 raid_device->wwid = wwid;
5703 _scsih_raid_device_add(ioc, raid_device);
5704 if (!ioc->wait_for_discovery_to_complete) {
5705 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
5706 raid_device->id, 0);
5707 if (rc)
5708 _scsih_raid_device_remove(ioc, raid_device);
5709 } else {
5710 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5711 _scsih_determine_boot_device(ioc, raid_device, 1);
5712 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5713 }
5714}
5715
5716/**
5717 * _scsih_sas_volume_delete - delete volume
5718 * @ioc: per adapter object
5719 * @handle: volume device handle
5720 * Context: user.
5721 *
5722 * Return nothing.
5723 */
5724static void
5725_scsih_sas_volume_delete(struct MPT3SAS_ADAPTER *ioc, u16 handle)
5726{
5727 struct _raid_device *raid_device;
5728 unsigned long flags;
5729 struct MPT3SAS_TARGET *sas_target_priv_data;
5730 struct scsi_target *starget = NULL;
5731
5732 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5733 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
5734 if (raid_device) {
5735 if (raid_device->starget) {
5736 starget = raid_device->starget;
5737 sas_target_priv_data = starget->hostdata;
5738 sas_target_priv_data->deleted = 1;
5739 }
5740 pr_info(MPT3SAS_FMT "removing handle(0x%04x), wwid(0x%016llx)\n",
5741 ioc->name, raid_device->handle,
5742 (unsigned long long) raid_device->wwid);
5743 list_del(&raid_device->list);
5744 kfree(raid_device);
5745 }
5746 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5747 if (starget)
5748 scsi_remove_target(&starget->dev);
5749}
5750
5751/**
5752 * _scsih_sas_pd_expose - expose pd component to /dev/sdX
5753 * @ioc: per adapter object
5754 * @element: IR config element data
5755 * Context: user.
5756 *
5757 * Return nothing.
5758 */
5759static void
5760_scsih_sas_pd_expose(struct MPT3SAS_ADAPTER *ioc,
5761 Mpi2EventIrConfigElement_t *element)
5762{
5763 struct _sas_device *sas_device;
5764 struct scsi_target *starget = NULL;
5765 struct MPT3SAS_TARGET *sas_target_priv_data;
5766 unsigned long flags;
5767 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5768
5769 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5770 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5771 if (sas_device) {
5772 sas_device->volume_handle = 0;
5773 sas_device->volume_wwid = 0;
5774 clear_bit(handle, ioc->pd_handles);
5775 if (sas_device->starget && sas_device->starget->hostdata) {
5776 starget = sas_device->starget;
5777 sas_target_priv_data = starget->hostdata;
5778 sas_target_priv_data->flags &=
5779 ~MPT_TARGET_FLAGS_RAID_COMPONENT;
5780 }
5781 }
5782 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5783 if (!sas_device)
5784 return;
5785
5786 /* exposing raid component */
5787 if (starget)
5788 starget_for_each_device(starget, NULL, _scsih_reprobe_lun);
5789}
5790
5791/**
5792 * _scsih_sas_pd_hide - hide pd component from /dev/sdX
5793 * @ioc: per adapter object
5794 * @element: IR config element data
5795 * Context: user.
5796 *
5797 * Return nothing.
5798 */
5799static void
5800_scsih_sas_pd_hide(struct MPT3SAS_ADAPTER *ioc,
5801 Mpi2EventIrConfigElement_t *element)
5802{
5803 struct _sas_device *sas_device;
5804 struct scsi_target *starget = NULL;
5805 struct MPT3SAS_TARGET *sas_target_priv_data;
5806 unsigned long flags;
5807 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5808 u16 volume_handle = 0;
5809 u64 volume_wwid = 0;
5810
5811 mpt3sas_config_get_volume_handle(ioc, handle, &volume_handle);
5812 if (volume_handle)
5813 mpt3sas_config_get_volume_wwid(ioc, volume_handle,
5814 &volume_wwid);
5815
5816 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5817 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5818 if (sas_device) {
5819 set_bit(handle, ioc->pd_handles);
5820 if (sas_device->starget && sas_device->starget->hostdata) {
5821 starget = sas_device->starget;
5822 sas_target_priv_data = starget->hostdata;
5823 sas_target_priv_data->flags |=
5824 MPT_TARGET_FLAGS_RAID_COMPONENT;
5825 sas_device->volume_handle = volume_handle;
5826 sas_device->volume_wwid = volume_wwid;
5827 }
5828 }
5829 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5830 if (!sas_device)
5831 return;
5832
5833 /* hiding raid component */
5834 _scsih_ir_fastpath(ioc, handle, element->PhysDiskNum);
5835 if (starget)
5836 starget_for_each_device(starget, (void *)1, _scsih_reprobe_lun);
5837}
5838
5839/**
5840 * _scsih_sas_pd_delete - delete pd component
5841 * @ioc: per adapter object
5842 * @element: IR config element data
5843 * Context: user.
5844 *
5845 * Return nothing.
5846 */
5847static void
5848_scsih_sas_pd_delete(struct MPT3SAS_ADAPTER *ioc,
5849 Mpi2EventIrConfigElement_t *element)
5850{
5851 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5852
5853 _scsih_device_remove_by_handle(ioc, handle);
5854}
5855
5856/**
5857 * _scsih_sas_pd_add - remove pd component
5858 * @ioc: per adapter object
5859 * @element: IR config element data
5860 * Context: user.
5861 *
5862 * Return nothing.
5863 */
5864static void
5865_scsih_sas_pd_add(struct MPT3SAS_ADAPTER *ioc,
5866 Mpi2EventIrConfigElement_t *element)
5867{
5868 struct _sas_device *sas_device;
5869 unsigned long flags;
5870 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5871 Mpi2ConfigReply_t mpi_reply;
5872 Mpi2SasDevicePage0_t sas_device_pg0;
5873 u32 ioc_status;
5874 u64 sas_address;
5875 u16 parent_handle;
5876
5877 set_bit(handle, ioc->pd_handles);
5878
5879 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5880 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5881 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5882 if (sas_device) {
5883 _scsih_ir_fastpath(ioc, handle, element->PhysDiskNum);
5884 return;
5885 }
5886
5887 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
5888 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
5889 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
5890 ioc->name, __FILE__, __LINE__, __func__);
5891 return;
5892 }
5893
5894 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5895 MPI2_IOCSTATUS_MASK;
5896 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
5897 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
5898 ioc->name, __FILE__, __LINE__, __func__);
5899 return;
5900 }
5901
5902 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
5903 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
5904 mpt3sas_transport_update_links(ioc, sas_address, handle,
5905 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
5906
5907 _scsih_ir_fastpath(ioc, handle, element->PhysDiskNum);
5908 _scsih_add_device(ioc, handle, 0, 1);
5909}
5910
5911#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
5912/**
5913 * _scsih_sas_ir_config_change_event_debug - debug for IR Config Change events
5914 * @ioc: per adapter object
5915 * @event_data: event data payload
5916 * Context: user.
5917 *
5918 * Return nothing.
5919 */
5920static void
5921_scsih_sas_ir_config_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
5922 Mpi2EventDataIrConfigChangeList_t *event_data)
5923{
5924 Mpi2EventIrConfigElement_t *element;
5925 u8 element_type;
5926 int i;
5927 char *reason_str = NULL, *element_str = NULL;
5928
5929 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
5930
5931 pr_info(MPT3SAS_FMT "raid config change: (%s), elements(%d)\n",
5932 ioc->name, (le32_to_cpu(event_data->Flags) &
5933 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ?
5934 "foreign" : "native", event_data->NumElements);
5935 for (i = 0; i < event_data->NumElements; i++, element++) {
5936 switch (element->ReasonCode) {
5937 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
5938 reason_str = "add";
5939 break;
5940 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
5941 reason_str = "remove";
5942 break;
5943 case MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE:
5944 reason_str = "no change";
5945 break;
5946 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
5947 reason_str = "hide";
5948 break;
5949 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
5950 reason_str = "unhide";
5951 break;
5952 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
5953 reason_str = "volume_created";
5954 break;
5955 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
5956 reason_str = "volume_deleted";
5957 break;
5958 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
5959 reason_str = "pd_created";
5960 break;
5961 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
5962 reason_str = "pd_deleted";
5963 break;
5964 default:
5965 reason_str = "unknown reason";
5966 break;
5967 }
5968 element_type = le16_to_cpu(element->ElementFlags) &
5969 MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
5970 switch (element_type) {
5971 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT:
5972 element_str = "volume";
5973 break;
5974 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT:
5975 element_str = "phys disk";
5976 break;
5977 case MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT:
5978 element_str = "hot spare";
5979 break;
5980 default:
5981 element_str = "unknown element";
5982 break;
5983 }
5984 pr_info("\t(%s:%s), vol handle(0x%04x), " \
5985 "pd handle(0x%04x), pd num(0x%02x)\n", element_str,
5986 reason_str, le16_to_cpu(element->VolDevHandle),
5987 le16_to_cpu(element->PhysDiskDevHandle),
5988 element->PhysDiskNum);
5989 }
5990}
5991#endif
5992
5993/**
5994 * _scsih_sas_ir_config_change_event - handle ir configuration change events
5995 * @ioc: per adapter object
5996 * @fw_event: The fw_event_work object
5997 * Context: user.
5998 *
5999 * Return nothing.
6000 */
6001static void
6002_scsih_sas_ir_config_change_event(struct MPT3SAS_ADAPTER *ioc,
6003 struct fw_event_work *fw_event)
6004{
6005 Mpi2EventIrConfigElement_t *element;
6006 int i;
6007 u8 foreign_config;
6008 Mpi2EventDataIrConfigChangeList_t *event_data = fw_event->event_data;
6009
6010#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
6011 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
6012 _scsih_sas_ir_config_change_event_debug(ioc, event_data);
6013
6014#endif
6015
6016 foreign_config = (le32_to_cpu(event_data->Flags) &
6017 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
6018
6019 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
6020 if (ioc->shost_recovery) {
6021
6022 for (i = 0; i < event_data->NumElements; i++, element++) {
6023 if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_HIDE)
6024 _scsih_ir_fastpath(ioc,
6025 le16_to_cpu(element->PhysDiskDevHandle),
6026 element->PhysDiskNum);
6027 }
6028 return;
6029 }
6030 for (i = 0; i < event_data->NumElements; i++, element++) {
6031
6032 switch (element->ReasonCode) {
6033 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
6034 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
6035 if (!foreign_config)
6036 _scsih_sas_volume_add(ioc, element);
6037 break;
6038 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
6039 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
6040 if (!foreign_config)
6041 _scsih_sas_volume_delete(ioc,
6042 le16_to_cpu(element->VolDevHandle));
6043 break;
6044 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
6045 _scsih_sas_pd_hide(ioc, element);
6046 break;
6047 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
6048 _scsih_sas_pd_expose(ioc, element);
6049 break;
6050 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
6051 _scsih_sas_pd_add(ioc, element);
6052 break;
6053 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
6054 _scsih_sas_pd_delete(ioc, element);
6055 break;
6056 }
6057 }
6058}
6059
6060/**
6061 * _scsih_sas_ir_volume_event - IR volume event
6062 * @ioc: per adapter object
6063 * @fw_event: The fw_event_work object
6064 * Context: user.
6065 *
6066 * Return nothing.
6067 */
6068static void
6069_scsih_sas_ir_volume_event(struct MPT3SAS_ADAPTER *ioc,
6070 struct fw_event_work *fw_event)
6071{
6072 u64 wwid;
6073 unsigned long flags;
6074 struct _raid_device *raid_device;
6075 u16 handle;
6076 u32 state;
6077 int rc;
6078 Mpi2EventDataIrVolume_t *event_data = fw_event->event_data;
6079
6080 if (ioc->shost_recovery)
6081 return;
6082
6083 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
6084 return;
6085
6086 handle = le16_to_cpu(event_data->VolDevHandle);
6087 state = le32_to_cpu(event_data->NewValue);
6088 dewtprintk(ioc, pr_info(MPT3SAS_FMT
6089 "%s: handle(0x%04x), old(0x%08x), new(0x%08x)\n",
6090 ioc->name, __func__, handle,
6091 le32_to_cpu(event_data->PreviousValue), state));
6092 switch (state) {
6093 case MPI2_RAID_VOL_STATE_MISSING:
6094 case MPI2_RAID_VOL_STATE_FAILED:
6095 _scsih_sas_volume_delete(ioc, handle);
6096 break;
6097
6098 case MPI2_RAID_VOL_STATE_ONLINE:
6099 case MPI2_RAID_VOL_STATE_DEGRADED:
6100 case MPI2_RAID_VOL_STATE_OPTIMAL:
6101
6102 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6103 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
6104 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6105
6106 if (raid_device)
6107 break;
6108
6109 mpt3sas_config_get_volume_wwid(ioc, handle, &wwid);
6110 if (!wwid) {
6111 pr_err(MPT3SAS_FMT
6112 "failure at %s:%d/%s()!\n", ioc->name,
6113 __FILE__, __LINE__, __func__);
6114 break;
6115 }
6116
6117 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
6118 if (!raid_device) {
6119 pr_err(MPT3SAS_FMT
6120 "failure at %s:%d/%s()!\n", ioc->name,
6121 __FILE__, __LINE__, __func__);
6122 break;
6123 }
6124
6125 raid_device->id = ioc->sas_id++;
6126 raid_device->channel = RAID_CHANNEL;
6127 raid_device->handle = handle;
6128 raid_device->wwid = wwid;
6129 _scsih_raid_device_add(ioc, raid_device);
6130 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
6131 raid_device->id, 0);
6132 if (rc)
6133 _scsih_raid_device_remove(ioc, raid_device);
6134 break;
6135
6136 case MPI2_RAID_VOL_STATE_INITIALIZING:
6137 default:
6138 break;
6139 }
6140}
6141
6142/**
6143 * _scsih_sas_ir_physical_disk_event - PD event
6144 * @ioc: per adapter object
6145 * @fw_event: The fw_event_work object
6146 * Context: user.
6147 *
6148 * Return nothing.
6149 */
6150static void
6151_scsih_sas_ir_physical_disk_event(struct MPT3SAS_ADAPTER *ioc,
6152 struct fw_event_work *fw_event)
6153{
6154 u16 handle, parent_handle;
6155 u32 state;
6156 struct _sas_device *sas_device;
6157 unsigned long flags;
6158 Mpi2ConfigReply_t mpi_reply;
6159 Mpi2SasDevicePage0_t sas_device_pg0;
6160 u32 ioc_status;
6161 Mpi2EventDataIrPhysicalDisk_t *event_data = fw_event->event_data;
6162 u64 sas_address;
6163
6164 if (ioc->shost_recovery)
6165 return;
6166
6167 if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED)
6168 return;
6169
6170 handle = le16_to_cpu(event_data->PhysDiskDevHandle);
6171 state = le32_to_cpu(event_data->NewValue);
6172
6173 dewtprintk(ioc, pr_info(MPT3SAS_FMT
6174 "%s: handle(0x%04x), old(0x%08x), new(0x%08x)\n",
6175 ioc->name, __func__, handle,
6176 le32_to_cpu(event_data->PreviousValue), state));
6177 switch (state) {
6178 case MPI2_RAID_PD_STATE_ONLINE:
6179 case MPI2_RAID_PD_STATE_DEGRADED:
6180 case MPI2_RAID_PD_STATE_REBUILDING:
6181 case MPI2_RAID_PD_STATE_OPTIMAL:
6182 case MPI2_RAID_PD_STATE_HOT_SPARE:
6183
6184 set_bit(handle, ioc->pd_handles);
6185 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6186 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
6187 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6188
6189 if (sas_device)
6190 return;
6191
6192 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
6193 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
6194 handle))) {
6195 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
6196 ioc->name, __FILE__, __LINE__, __func__);
6197 return;
6198 }
6199
6200 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6201 MPI2_IOCSTATUS_MASK;
6202 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6203 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
6204 ioc->name, __FILE__, __LINE__, __func__);
6205 return;
6206 }
6207
6208 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
6209 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
6210 mpt3sas_transport_update_links(ioc, sas_address, handle,
6211 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
6212
6213 _scsih_add_device(ioc, handle, 0, 1);
6214
6215 break;
6216
6217 case MPI2_RAID_PD_STATE_OFFLINE:
6218 case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
6219 case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
6220 default:
6221 break;
6222 }
6223}
6224
6225#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
6226/**
6227 * _scsih_sas_ir_operation_status_event_debug - debug for IR op event
6228 * @ioc: per adapter object
6229 * @event_data: event data payload
6230 * Context: user.
6231 *
6232 * Return nothing.
6233 */
6234static void
6235_scsih_sas_ir_operation_status_event_debug(struct MPT3SAS_ADAPTER *ioc,
6236 Mpi2EventDataIrOperationStatus_t *event_data)
6237{
6238 char *reason_str = NULL;
6239
6240 switch (event_data->RAIDOperation) {
6241 case MPI2_EVENT_IR_RAIDOP_RESYNC:
6242 reason_str = "resync";
6243 break;
6244 case MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION:
6245 reason_str = "online capacity expansion";
6246 break;
6247 case MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK:
6248 reason_str = "consistency check";
6249 break;
6250 case MPI2_EVENT_IR_RAIDOP_BACKGROUND_INIT:
6251 reason_str = "background init";
6252 break;
6253 case MPI2_EVENT_IR_RAIDOP_MAKE_DATA_CONSISTENT:
6254 reason_str = "make data consistent";
6255 break;
6256 }
6257
6258 if (!reason_str)
6259 return;
6260
6261 pr_info(MPT3SAS_FMT "raid operational status: (%s)" \
6262 "\thandle(0x%04x), percent complete(%d)\n",
6263 ioc->name, reason_str,
6264 le16_to_cpu(event_data->VolDevHandle),
6265 event_data->PercentComplete);
6266}
6267#endif
6268
6269/**
6270 * _scsih_sas_ir_operation_status_event - handle RAID operation events
6271 * @ioc: per adapter object
6272 * @fw_event: The fw_event_work object
6273 * Context: user.
6274 *
6275 * Return nothing.
6276 */
6277static void
6278_scsih_sas_ir_operation_status_event(struct MPT3SAS_ADAPTER *ioc,
6279 struct fw_event_work *fw_event)
6280{
6281 Mpi2EventDataIrOperationStatus_t *event_data = fw_event->event_data;
6282 static struct _raid_device *raid_device;
6283 unsigned long flags;
6284 u16 handle;
6285
6286#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
6287 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
6288 _scsih_sas_ir_operation_status_event_debug(ioc,
6289 event_data);
6290#endif
6291
6292 /* code added for raid transport support */
6293 if (event_data->RAIDOperation == MPI2_EVENT_IR_RAIDOP_RESYNC) {
6294
6295 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6296 handle = le16_to_cpu(event_data->VolDevHandle);
6297 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
6298 if (raid_device)
6299 raid_device->percent_complete =
6300 event_data->PercentComplete;
6301 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6302 }
6303}
6304
6305/**
6306 * _scsih_prep_device_scan - initialize parameters prior to device scan
6307 * @ioc: per adapter object
6308 *
6309 * Set the deleted flag prior to device scan. If the device is found during
6310 * the scan, then we clear the deleted flag.
6311 */
6312static void
6313_scsih_prep_device_scan(struct MPT3SAS_ADAPTER *ioc)
6314{
6315 struct MPT3SAS_DEVICE *sas_device_priv_data;
6316 struct scsi_device *sdev;
6317
6318 shost_for_each_device(sdev, ioc->shost) {
6319 sas_device_priv_data = sdev->hostdata;
6320 if (sas_device_priv_data && sas_device_priv_data->sas_target)
6321 sas_device_priv_data->sas_target->deleted = 1;
6322 }
6323}
6324
6325/**
6326 * _scsih_mark_responding_sas_device - mark a sas_devices as responding
6327 * @ioc: per adapter object
6328 * @sas_address: sas address
6329 * @slot: enclosure slot id
6330 * @handle: device handle
6331 *
6332 * After host reset, find out whether devices are still responding.
6333 * Used in _scsih_remove_unresponsive_sas_devices.
6334 *
6335 * Return nothing.
6336 */
6337static void
6338_scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
6339 u16 slot, u16 handle)
6340{
6341 struct MPT3SAS_TARGET *sas_target_priv_data = NULL;
6342 struct scsi_target *starget;
6343 struct _sas_device *sas_device;
6344 unsigned long flags;
6345
6346 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6347 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
6348 if (sas_device->sas_address == sas_address &&
6349 sas_device->slot == slot) {
6350 sas_device->responding = 1;
6351 starget = sas_device->starget;
6352 if (starget && starget->hostdata) {
6353 sas_target_priv_data = starget->hostdata;
6354 sas_target_priv_data->tm_busy = 0;
6355 sas_target_priv_data->deleted = 0;
6356 } else
6357 sas_target_priv_data = NULL;
6358 if (starget)
6359 starget_printk(KERN_INFO, starget,
6360 "handle(0x%04x), sas_addr(0x%016llx), "
6361 "enclosure logical id(0x%016llx), "
6362 "slot(%d)\n", handle,
6363 (unsigned long long)sas_device->sas_address,
6364 (unsigned long long)
6365 sas_device->enclosure_logical_id,
6366 sas_device->slot);
6367 if (sas_device->handle == handle)
6368 goto out;
6369 pr_info("\thandle changed from(0x%04x)!!!\n",
6370 sas_device->handle);
6371 sas_device->handle = handle;
6372 if (sas_target_priv_data)
6373 sas_target_priv_data->handle = handle;
6374 goto out;
6375 }
6376 }
6377 out:
6378 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6379}
6380
6381/**
6382 * _scsih_search_responding_sas_devices -
6383 * @ioc: per adapter object
6384 *
6385 * After host reset, find out whether devices are still responding.
6386 * If not remove.
6387 *
6388 * Return nothing.
6389 */
6390static void
6391_scsih_search_responding_sas_devices(struct MPT3SAS_ADAPTER *ioc)
6392{
6393 Mpi2SasDevicePage0_t sas_device_pg0;
6394 Mpi2ConfigReply_t mpi_reply;
6395 u16 ioc_status;
6396 u16 handle;
6397 u32 device_info;
6398
6399 pr_info(MPT3SAS_FMT "search for end-devices: start\n", ioc->name);
6400
6401 if (list_empty(&ioc->sas_device_list))
6402 goto out;
6403
6404 handle = 0xFFFF;
6405 while (!(mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
6406 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
6407 handle))) {
6408 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6409 MPI2_IOCSTATUS_MASK;
14be49ac 6410 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
f92363d1
SR		 6411 break;
6412 handle = le16_to_cpu(sas_device_pg0.DevHandle);
6413 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
6414 if (!(_scsih_is_end_device(device_info)))
6415 continue;
6416 _scsih_mark_responding_sas_device(ioc,
6417 le64_to_cpu(sas_device_pg0.SASAddress),
6418 le16_to_cpu(sas_device_pg0.Slot), handle);
6419 }
6420
6421 out:
6422 pr_info(MPT3SAS_FMT "search for end-devices: complete\n",
6423 ioc->name);
6424}
6425
6426/**
6427 * _scsih_mark_responding_raid_device - mark a raid_device as responding
6428 * @ioc: per adapter object
6429 * @wwid: world wide identifier for raid volume
6430 * @handle: device handle
6431 *
6432 * After host reset, find out whether devices are still responding.
6433 * Used in _scsih_remove_unresponsive_raid_devices.
6434 *
6435 * Return nothing.
6436 */
6437static void
6438_scsih_mark_responding_raid_device(struct MPT3SAS_ADAPTER *ioc, u64 wwid,
6439 u16 handle)
6440{
6441 struct MPT3SAS_TARGET *sas_target_priv_data;
6442 struct scsi_target *starget;
6443 struct _raid_device *raid_device;
6444 unsigned long flags;
6445
6446 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6447 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
6448 if (raid_device->wwid == wwid && raid_device->starget) {
6449 starget = raid_device->starget;
6450 if (starget && starget->hostdata) {
6451 sas_target_priv_data = starget->hostdata;
6452 sas_target_priv_data->deleted = 0;
6453 } else
6454 sas_target_priv_data = NULL;
6455 raid_device->responding = 1;
6456 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6457 starget_printk(KERN_INFO, raid_device->starget,
6458 "handle(0x%04x), wwid(0x%016llx)\n", handle,
6459 (unsigned long long)raid_device->wwid);
6460 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6461 if (raid_device->handle == handle) {
6462 spin_unlock_irqrestore(&ioc->raid_device_lock,
6463 flags);
6464 return;
6465 }
6466 pr_info("\thandle changed from(0x%04x)!!!\n",
6467 raid_device->handle);
6468 raid_device->handle = handle;
6469 if (sas_target_priv_data)
6470 sas_target_priv_data->handle = handle;
6471 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6472 return;
6473 }
6474 }
6475 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6476}
6477
6478/**
6479 * _scsih_search_responding_raid_devices -
6480 * @ioc: per adapter object
6481 *
6482 * After host reset, find out whether devices are still responding.
6483 * If not remove.
6484 *
6485 * Return nothing.
6486 */
6487static void
6488_scsih_search_responding_raid_devices(struct MPT3SAS_ADAPTER *ioc)
6489{
6490 Mpi2RaidVolPage1_t volume_pg1;
6491 Mpi2RaidVolPage0_t volume_pg0;
6492 Mpi2RaidPhysDiskPage0_t pd_pg0;
6493 Mpi2ConfigReply_t mpi_reply;
6494 u16 ioc_status;
6495 u16 handle;
6496 u8 phys_disk_num;
6497
6498 if (!ioc->ir_firmware)
6499 return;
6500
6501 pr_info(MPT3SAS_FMT "search for raid volumes: start\n",
6502 ioc->name);
6503
6504 if (list_empty(&ioc->raid_device_list))
6505 goto out;
6506
6507 handle = 0xFFFF;
6508 while (!(mpt3sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
6509 &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
6510 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6511 MPI2_IOCSTATUS_MASK;
14be49ac 6512 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
f92363d1
SR		 6513 break;
6514 handle = le16_to_cpu(volume_pg1.DevHandle);
6515
6516 if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
6517 &volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
6518 sizeof(Mpi2RaidVolPage0_t)))
6519 continue;
6520
6521 if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
6522 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
6523 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED)
6524 _scsih_mark_responding_raid_device(ioc,
6525 le64_to_cpu(volume_pg1.WWID), handle);
6526 }
6527
6528 /* refresh the pd_handles */
6529 phys_disk_num = 0xFF;
6530 memset(ioc->pd_handles, 0, ioc->pd_handles_sz);
6531 while (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
6532 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
6533 phys_disk_num))) {
6534 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6535 MPI2_IOCSTATUS_MASK;
14be49ac 6536 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
f92363d1
SR		 6537 break;
6538 phys_disk_num = pd_pg0.PhysDiskNum;
6539 handle = le16_to_cpu(pd_pg0.DevHandle);
6540 set_bit(handle, ioc->pd_handles);
6541 }
6542 out:
6543 pr_info(MPT3SAS_FMT "search for responding raid volumes: complete\n",
6544 ioc->name);
6545}
6546
6547/**
6548 * _scsih_mark_responding_expander - mark a expander as responding
6549 * @ioc: per adapter object
6550 * @sas_address: sas address
6551 * @handle:
6552 *
6553 * After host reset, find out whether devices are still responding.
6554 * Used in _scsih_remove_unresponsive_expanders.
6555 *
6556 * Return nothing.
6557 */
6558static void
6559_scsih_mark_responding_expander(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
6560 u16 handle)
6561{
6562 struct _sas_node *sas_expander;
6563 unsigned long flags;
6564 int i;
6565
6566 spin_lock_irqsave(&ioc->sas_node_lock, flags);
6567 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
6568 if (sas_expander->sas_address != sas_address)
6569 continue;
6570 sas_expander->responding = 1;
6571 if (sas_expander->handle == handle)
6572 goto out;
6573 pr_info("\texpander(0x%016llx): handle changed" \
6574 " from(0x%04x) to (0x%04x)!!!\n",
6575 (unsigned long long)sas_expander->sas_address,
6576 sas_expander->handle, handle);
6577 sas_expander->handle = handle;
6578 for (i = 0 ; i < sas_expander->num_phys ; i++)
6579 sas_expander->phy[i].handle = handle;
6580 goto out;
6581 }
6582 out:
6583 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
6584}
6585
6586/**
6587 * _scsih_search_responding_expanders -
6588 * @ioc: per adapter object
6589 *
6590 * After host reset, find out whether devices are still responding.
6591 * If not remove.
6592 *
6593 * Return nothing.
6594 */
6595static void
6596_scsih_search_responding_expanders(struct MPT3SAS_ADAPTER *ioc)
6597{
6598 Mpi2ExpanderPage0_t expander_pg0;
6599 Mpi2ConfigReply_t mpi_reply;
6600 u16 ioc_status;
6601 u64 sas_address;
6602 u16 handle;
6603
6604 pr_info(MPT3SAS_FMT "search for expanders: start\n", ioc->name);
6605
6606 if (list_empty(&ioc->sas_expander_list))
6607 goto out;
6608
6609 handle = 0xFFFF;
6610 while (!(mpt3sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
6611 MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
6612
6613 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6614 MPI2_IOCSTATUS_MASK;
14be49ac 6615 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
f92363d1
SR		 6616 break;
6617
6618 handle = le16_to_cpu(expander_pg0.DevHandle);
6619 sas_address = le64_to_cpu(expander_pg0.SASAddress);
6620 pr_info("\texpander present: handle(0x%04x), sas_addr(0x%016llx)\n",
6621 handle,
6622 (unsigned long long)sas_address);
6623 _scsih_mark_responding_expander(ioc, sas_address, handle);
6624 }
6625
6626 out:
6627 pr_info(MPT3SAS_FMT "search for expanders: complete\n", ioc->name);
6628}
6629
6630/**
6631 * _scsih_remove_unresponding_sas_devices - removing unresponding devices
6632 * @ioc: per adapter object
6633 *
6634 * Return nothing.
6635 */
6636static void
6637_scsih_remove_unresponding_sas_devices(struct MPT3SAS_ADAPTER *ioc)
6638{
6639 struct _sas_device *sas_device, *sas_device_next;
6640 struct _sas_node *sas_expander, *sas_expander_next;
6641 struct _raid_device *raid_device, *raid_device_next;
6642 struct list_head tmp_list;
6643 unsigned long flags;
6644
6645 pr_info(MPT3SAS_FMT "removing unresponding devices: start\n",
6646 ioc->name);
6647
6648 /* removing unresponding end devices */
6649 pr_info(MPT3SAS_FMT "removing unresponding devices: end-devices\n",
6650 ioc->name);
6651 list_for_each_entry_safe(sas_device, sas_device_next,
6652 &ioc->sas_device_list, list) {
6653 if (!sas_device->responding)
6654 mpt3sas_device_remove_by_sas_address(ioc,
6655 sas_device->sas_address);
6656 else
6657 sas_device->responding = 0;
6658 }
6659
6660 /* removing unresponding volumes */
6661 if (ioc->ir_firmware) {
6662 pr_info(MPT3SAS_FMT "removing unresponding devices: volumes\n",
6663 ioc->name);
6664 list_for_each_entry_safe(raid_device, raid_device_next,
6665 &ioc->raid_device_list, list) {
6666 if (!raid_device->responding)
6667 _scsih_sas_volume_delete(ioc,
6668 raid_device->handle);
6669 else
6670 raid_device->responding = 0;
6671 }
6672 }
6673
6674 /* removing unresponding expanders */
6675 pr_info(MPT3SAS_FMT "removing unresponding devices: expanders\n",
6676 ioc->name);
6677 spin_lock_irqsave(&ioc->sas_node_lock, flags);
6678 INIT_LIST_HEAD(&tmp_list);
6679 list_for_each_entry_safe(sas_expander, sas_expander_next,
6680 &ioc->sas_expander_list, list) {
6681 if (!sas_expander->responding)
6682 list_move_tail(&sas_expander->list, &tmp_list);
6683 else
6684 sas_expander->responding = 0;
6685 }
6686 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
6687 list_for_each_entry_safe(sas_expander, sas_expander_next, &tmp_list,
6688 list) {
6689 list_del(&sas_expander->list);
6690 _scsih_expander_node_remove(ioc, sas_expander);
6691 }
6692
6693 pr_info(MPT3SAS_FMT "removing unresponding devices: complete\n",
6694 ioc->name);
6695
6696 /* unblock devices */
6697 _scsih_ublock_io_all_device(ioc);
6698}
6699
6700static void
6701_scsih_refresh_expander_links(struct MPT3SAS_ADAPTER *ioc,
6702 struct _sas_node *sas_expander, u16 handle)
6703{
6704 Mpi2ExpanderPage1_t expander_pg1;
6705 Mpi2ConfigReply_t mpi_reply;
6706 int i;
6707
6708 for (i = 0 ; i < sas_expander->num_phys ; i++) {
6709 if ((mpt3sas_config_get_expander_pg1(ioc, &mpi_reply,
6710 &expander_pg1, i, handle))) {
6711 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
6712 ioc->name, __FILE__, __LINE__, __func__);
6713 return;
6714 }
6715
6716 mpt3sas_transport_update_links(ioc, sas_expander->sas_address,
6717 le16_to_cpu(expander_pg1.AttachedDevHandle), i,
6718 expander_pg1.NegotiatedLinkRate >> 4);
6719 }
6720}
6721
6722/**
6723 * _scsih_scan_for_devices_after_reset - scan for devices after host reset
6724 * @ioc: per adapter object
6725 *
6726 * Return nothing.
6727 */
6728static void
6729_scsih_scan_for_devices_after_reset(struct MPT3SAS_ADAPTER *ioc)
6730{
6731 Mpi2ExpanderPage0_t expander_pg0;
6732 Mpi2SasDevicePage0_t sas_device_pg0;
6733 Mpi2RaidVolPage1_t volume_pg1;
6734 Mpi2RaidVolPage0_t volume_pg0;
6735 Mpi2RaidPhysDiskPage0_t pd_pg0;
6736 Mpi2EventIrConfigElement_t element;
6737 Mpi2ConfigReply_t mpi_reply;
6738 u8 phys_disk_num;
6739 u16 ioc_status;
6740 u16 handle, parent_handle;
6741 u64 sas_address;
6742 struct _sas_device *sas_device;
6743 struct _sas_node *expander_device;
6744 static struct _raid_device *raid_device;
6745 u8 retry_count;
6746 unsigned long flags;
6747
6748 pr_info(MPT3SAS_FMT "scan devices: start\n", ioc->name);
6749
6750 _scsih_sas_host_refresh(ioc);
6751
6752 pr_info(MPT3SAS_FMT "\tscan devices: expanders start\n", ioc->name);
6753
6754 /* expanders */
6755 handle = 0xFFFF;
6756 while (!(mpt3sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
6757 MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
6758 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6759 MPI2_IOCSTATUS_MASK;
f92363d1
SR		 6760 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6761 pr_info(MPT3SAS_FMT "\tbreak from expander scan: " \
6762 "ioc_status(0x%04x), loginfo(0x%08x)\n",
6763 ioc->name, ioc_status,
6764 le32_to_cpu(mpi_reply.IOCLogInfo));
6765 break;
6766 }
6767 handle = le16_to_cpu(expander_pg0.DevHandle);
6768 spin_lock_irqsave(&ioc->sas_node_lock, flags);
6769 expander_device = mpt3sas_scsih_expander_find_by_sas_address(
6770 ioc, le64_to_cpu(expander_pg0.SASAddress));
6771 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
6772 if (expander_device)
6773 _scsih_refresh_expander_links(ioc, expander_device,
6774 handle);
6775 else {
6776 pr_info(MPT3SAS_FMT "\tBEFORE adding expander: " \
6777 "handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name,
6778 handle, (unsigned long long)
6779 le64_to_cpu(expander_pg0.SASAddress));
6780 _scsih_expander_add(ioc, handle);
6781 pr_info(MPT3SAS_FMT "\tAFTER adding expander: " \
6782 "handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name,
6783 handle, (unsigned long long)
6784 le64_to_cpu(expander_pg0.SASAddress));
6785 }
6786 }
6787
6788 pr_info(MPT3SAS_FMT "\tscan devices: expanders complete\n",
6789 ioc->name);
6790
6791 if (!ioc->ir_firmware)
6792 goto skip_to_sas;
6793
6794 pr_info(MPT3SAS_FMT "\tscan devices: phys disk start\n", ioc->name);
6795
6796 /* phys disk */
6797 phys_disk_num = 0xFF;
6798 while (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
6799 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
6800 phys_disk_num))) {
6801 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6802 MPI2_IOCSTATUS_MASK;
f92363d1
SR		 6803 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6804 pr_info(MPT3SAS_FMT "\tbreak from phys disk scan: "\
6805 "ioc_status(0x%04x), loginfo(0x%08x)\n",
6806 ioc->name, ioc_status,
6807 le32_to_cpu(mpi_reply.IOCLogInfo));
6808 break;
6809 }
6810 phys_disk_num = pd_pg0.PhysDiskNum;
6811 handle = le16_to_cpu(pd_pg0.DevHandle);
6812 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6813 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
6814 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6815 if (sas_device)
6816 continue;
6817 if (mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
6818 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
6819 handle) != 0)
6820 continue;
6821 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6822 MPI2_IOCSTATUS_MASK;
6823 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6824 pr_info(MPT3SAS_FMT "\tbreak from phys disk scan " \
6825 "ioc_status(0x%04x), loginfo(0x%08x)\n",
6826 ioc->name, ioc_status,
6827 le32_to_cpu(mpi_reply.IOCLogInfo));
6828 break;
6829 }
6830 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
6831 if (!_scsih_get_sas_address(ioc, parent_handle,
6832 &sas_address)) {
6833 pr_info(MPT3SAS_FMT "\tBEFORE adding phys disk: " \
6834 " handle (0x%04x), sas_addr(0x%016llx)\n",
6835 ioc->name, handle, (unsigned long long)
6836 le64_to_cpu(sas_device_pg0.SASAddress));
6837 mpt3sas_transport_update_links(ioc, sas_address,
6838 handle, sas_device_pg0.PhyNum,
6839 MPI2_SAS_NEG_LINK_RATE_1_5);
6840 set_bit(handle, ioc->pd_handles);
6841 retry_count = 0;
6842 /* This will retry adding the end device.
6843 * _scsih_add_device() will decide on retries and
6844 * return "1" when it should be retried
6845 */
6846 while (_scsih_add_device(ioc, handle, retry_count++,
6847 1)) {
6848 ssleep(1);
6849 }
6850 pr_info(MPT3SAS_FMT "\tAFTER adding phys disk: " \
6851 " handle (0x%04x), sas_addr(0x%016llx)\n",
6852 ioc->name, handle, (unsigned long long)
6853 le64_to_cpu(sas_device_pg0.SASAddress));
6854 }
6855 }
6856
6857 pr_info(MPT3SAS_FMT "\tscan devices: phys disk complete\n",
6858 ioc->name);
6859
6860 pr_info(MPT3SAS_FMT "\tscan devices: volumes start\n", ioc->name);
6861
6862 /* volumes */
6863 handle = 0xFFFF;
6864 while (!(mpt3sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
6865 &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
6866 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6867 MPI2_IOCSTATUS_MASK;
f92363d1
SR		 6868 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6869 pr_info(MPT3SAS_FMT "\tbreak from volume scan: " \
6870 "ioc_status(0x%04x), loginfo(0x%08x)\n",
6871 ioc->name, ioc_status,
6872 le32_to_cpu(mpi_reply.IOCLogInfo));
6873 break;
6874 }
6875 handle = le16_to_cpu(volume_pg1.DevHandle);
6876 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6877 raid_device = _scsih_raid_device_find_by_wwid(ioc,
6878 le64_to_cpu(volume_pg1.WWID));
6879 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6880 if (raid_device)
6881 continue;
6882 if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
6883 &volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
6884 sizeof(Mpi2RaidVolPage0_t)))
6885 continue;
6886 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6887 MPI2_IOCSTATUS_MASK;
6888 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6889 pr_info(MPT3SAS_FMT "\tbreak from volume scan: " \
6890 "ioc_status(0x%04x), loginfo(0x%08x)\n",
6891 ioc->name, ioc_status,
6892 le32_to_cpu(mpi_reply.IOCLogInfo));
6893 break;
6894 }
6895 if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
6896 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
6897 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED) {
6898 memset(&element, 0, sizeof(Mpi2EventIrConfigElement_t));
6899 element.ReasonCode = MPI2_EVENT_IR_CHANGE_RC_ADDED;
6900 element.VolDevHandle = volume_pg1.DevHandle;
6901 pr_info(MPT3SAS_FMT
6902 "\tBEFORE adding volume: handle (0x%04x)\n",
6903 ioc->name, volume_pg1.DevHandle);
6904 _scsih_sas_volume_add(ioc, &element);
6905 pr_info(MPT3SAS_FMT
6906 "\tAFTER adding volume: handle (0x%04x)\n",
6907 ioc->name, volume_pg1.DevHandle);
6908 }
6909 }
6910
6911 pr_info(MPT3SAS_FMT "\tscan devices: volumes complete\n",
6912 ioc->name);
6913
6914 skip_to_sas:
6915
6916 pr_info(MPT3SAS_FMT "\tscan devices: end devices start\n",
6917 ioc->name);
6918
6919 /* sas devices */
6920 handle = 0xFFFF;
6921 while (!(mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
6922 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
6923 handle))) {
6924 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6925 MPI2_IOCSTATUS_MASK;
f92363d1
SR		 6926 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6927 pr_info(MPT3SAS_FMT "\tbreak from end device scan:"\
6928 " ioc_status(0x%04x), loginfo(0x%08x)\n",
6929 ioc->name, ioc_status,
6930 le32_to_cpu(mpi_reply.IOCLogInfo));
6931 break;
6932 }
6933 handle = le16_to_cpu(sas_device_pg0.DevHandle);
6934 if (!(_scsih_is_end_device(
6935 le32_to_cpu(sas_device_pg0.DeviceInfo))))
6936 continue;
6937 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6938 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
6939 le64_to_cpu(sas_device_pg0.SASAddress));
6940 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6941 if (sas_device)
6942 continue;
6943 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
6944 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address)) {
6945 pr_info(MPT3SAS_FMT "\tBEFORE adding end device: " \
6946 "handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name,
6947 handle, (unsigned long long)
6948 le64_to_cpu(sas_device_pg0.SASAddress));
6949 mpt3sas_transport_update_links(ioc, sas_address, handle,
6950 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
6951 retry_count = 0;
6952 /* This will retry adding the end device.
6953 * _scsih_add_device() will decide on retries and
6954 * return "1" when it should be retried
6955 */
6956 while (_scsih_add_device(ioc, handle, retry_count++,
6957 0)) {
6958 ssleep(1);
6959 }
6960 pr_info(MPT3SAS_FMT "\tAFTER adding end device: " \
6961 "handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name,
6962 handle, (unsigned long long)
6963 le64_to_cpu(sas_device_pg0.SASAddress));
6964 }
6965 }
6966 pr_info(MPT3SAS_FMT "\tscan devices: end devices complete\n",
6967 ioc->name);
6968
6969 pr_info(MPT3SAS_FMT "scan devices: complete\n", ioc->name);
6970}
6971/**
6972 * mpt3sas_scsih_reset_handler - reset callback handler (for scsih)
6973 * @ioc: per adapter object
6974 * @reset_phase: phase
6975 *
6976 * The handler for doing any required cleanup or initialization.
6977 *
6978 * The reset phase can be MPT3_IOC_PRE_RESET, MPT3_IOC_AFTER_RESET,
6979 * MPT3_IOC_DONE_RESET
6980 *
6981 * Return nothing.
6982 */
6983void
6984mpt3sas_scsih_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase)
6985{
6986 switch (reset_phase) {
6987 case MPT3_IOC_PRE_RESET:
6988 dtmprintk(ioc, pr_info(MPT3SAS_FMT
6989 "%s: MPT3_IOC_PRE_RESET\n", ioc->name, __func__));
6990 break;
6991 case MPT3_IOC_AFTER_RESET:
6992 dtmprintk(ioc, pr_info(MPT3SAS_FMT
6993 "%s: MPT3_IOC_AFTER_RESET\n", ioc->name, __func__));
6994 if (ioc->scsih_cmds.status & MPT3_CMD_PENDING) {
6995 ioc->scsih_cmds.status |= MPT3_CMD_RESET;
6996 mpt3sas_base_free_smid(ioc, ioc->scsih_cmds.smid);
6997 complete(&ioc->scsih_cmds.done);
6998 }
6999 if (ioc->tm_cmds.status & MPT3_CMD_PENDING) {
7000 ioc->tm_cmds.status |= MPT3_CMD_RESET;
7001 mpt3sas_base_free_smid(ioc, ioc->tm_cmds.smid);
7002 complete(&ioc->tm_cmds.done);
7003 }
7004
7005 _scsih_fw_event_cleanup_queue(ioc);
7006 _scsih_flush_running_cmds(ioc);
7007 break;
7008 case MPT3_IOC_DONE_RESET:
7009 dtmprintk(ioc, pr_info(MPT3SAS_FMT
7010 "%s: MPT3_IOC_DONE_RESET\n", ioc->name, __func__));
7011 if ((!ioc->is_driver_loading) && !(disable_discovery > 0 &&
7012 !ioc->sas_hba.num_phys)) {
7013 _scsih_prep_device_scan(ioc);
7014 _scsih_search_responding_sas_devices(ioc);
7015 _scsih_search_responding_raid_devices(ioc);
7016 _scsih_search_responding_expanders(ioc);
7017 _scsih_error_recovery_delete_devices(ioc);
7018 }
7019 break;
7020 }
7021}
7022
7023/**
7024 * _mpt3sas_fw_work - delayed task for processing firmware events
7025 * @ioc: per adapter object
7026 * @fw_event: The fw_event_work object
7027 * Context: user.
7028 *
7029 * Return nothing.
7030 */
7031static void
7032_mpt3sas_fw_work(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
7033{
7034 /* the queue is being flushed so ignore this event */
7035 if (ioc->remove_host || fw_event->cancel_pending_work ||
7036 ioc->pci_error_recovery) {
7037 _scsih_fw_event_free(ioc, fw_event);
7038 return;
7039 }
7040
7041 switch (fw_event->event) {
7042 case MPT3SAS_PROCESS_TRIGGER_DIAG:
7043 mpt3sas_process_trigger_data(ioc, fw_event->event_data);
7044 break;
7045 case MPT3SAS_REMOVE_UNRESPONDING_DEVICES:
7046 while (scsi_host_in_recovery(ioc->shost) || ioc->shost_recovery)
7047 ssleep(1);
7048 _scsih_remove_unresponding_sas_devices(ioc);
7049 _scsih_scan_for_devices_after_reset(ioc);
7050 break;
7051 case MPT3SAS_PORT_ENABLE_COMPLETE:
7052 ioc->start_scan = 0;
7053 if (missing_delay[0] != -1 && missing_delay[1] != -1)
7054 mpt3sas_base_update_missing_delay(ioc, missing_delay[0],
7055 missing_delay[1]);
7056 dewtprintk(ioc, pr_info(MPT3SAS_FMT
7057 "port enable: complete from worker thread\n",
7058 ioc->name));
7059 break;
7060 case MPT3SAS_TURN_ON_FAULT_LED:
7061 _scsih_turn_on_fault_led(ioc, fw_event->device_handle);
7062 break;
7063 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
7064 _scsih_sas_topology_change_event(ioc, fw_event);
7065 break;
7066 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
7067 _scsih_sas_device_status_change_event(ioc, fw_event);
7068 break;
7069 case MPI2_EVENT_SAS_DISCOVERY:
7070 _scsih_sas_discovery_event(ioc, fw_event);
7071 break;
7072 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
7073 _scsih_sas_broadcast_primitive_event(ioc, fw_event);
7074 break;
7075 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
7076 _scsih_sas_enclosure_dev_status_change_event(ioc,
7077 fw_event);
7078 break;
7079 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
7080 _scsih_sas_ir_config_change_event(ioc, fw_event);
7081 break;
7082 case MPI2_EVENT_IR_VOLUME:
7083 _scsih_sas_ir_volume_event(ioc, fw_event);
7084 break;
7085 case MPI2_EVENT_IR_PHYSICAL_DISK:
7086 _scsih_sas_ir_physical_disk_event(ioc, fw_event);
7087 break;
7088 case MPI2_EVENT_IR_OPERATION_STATUS:
7089 _scsih_sas_ir_operation_status_event(ioc, fw_event);
7090 break;
7091 }
7092 _scsih_fw_event_free(ioc, fw_event);
7093}
7094
7095/**
7096 * _firmware_event_work
7097 * @ioc: per adapter object
7098 * @work: The fw_event_work object
7099 * Context: user.
7100 *
7101 * wrappers for the work thread handling firmware events
7102 *
7103 * Return nothing.
7104 */
7105
7106static void
7107_firmware_event_work(struct work_struct *work)
7108{
7109 struct fw_event_work *fw_event = container_of(work,
7110 struct fw_event_work, work);
7111
7112 _mpt3sas_fw_work(fw_event->ioc, fw_event);
7113}
7114
7115/**
7116 * mpt3sas_scsih_event_callback - firmware event handler (called at ISR time)
7117 * @ioc: per adapter object
7118 * @msix_index: MSIX table index supplied by the OS
7119 * @reply: reply message frame(lower 32bit addr)
7120 * Context: interrupt.
7121 *
7122 * This function merely adds a new work task into ioc->firmware_event_thread.
7123 * The tasks are worked from _firmware_event_work in user context.
7124 *
7125 * Return 1 meaning mf should be freed from _base_interrupt
7126 * 0 means the mf is freed from this function.
7127 */
7128u8
7129mpt3sas_scsih_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
7130 u32 reply)
7131{
7132 struct fw_event_work *fw_event;
7133 Mpi2EventNotificationReply_t *mpi_reply;
7134 u16 event;
7135 u16 sz;
7136
7137 /* events turned off due to host reset or driver unloading */
7138 if (ioc->remove_host || ioc->pci_error_recovery)
7139 return 1;
7140
7141 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
7142
7143 if (unlikely(!mpi_reply)) {
7144 pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n",
7145 ioc->name, __FILE__, __LINE__, __func__);
7146 return 1;
7147 }
7148
7149 event = le16_to_cpu(mpi_reply->Event);
7150
7151 if (event != MPI2_EVENT_LOG_ENTRY_ADDED)
7152 mpt3sas_trigger_event(ioc, event, 0);
7153
7154 switch (event) {
7155 /* handle these */
7156 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
7157 {
7158 Mpi2EventDataSasBroadcastPrimitive_t *baen_data =
7159 (Mpi2EventDataSasBroadcastPrimitive_t *)
7160 mpi_reply->EventData;
7161
7162 if (baen_data->Primitive !=
7163 MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT)
7164 return 1;
7165
7166 if (ioc->broadcast_aen_busy) {
7167 ioc->broadcast_aen_pending++;
7168 return 1;
7169 } else
7170 ioc->broadcast_aen_busy = 1;
7171 break;
7172 }
7173
7174 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
7175 _scsih_check_topo_delete_events(ioc,
7176 (Mpi2EventDataSasTopologyChangeList_t *)
7177 mpi_reply->EventData);
7178 break;
7179 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
7180 _scsih_check_ir_config_unhide_events(ioc,
7181 (Mpi2EventDataIrConfigChangeList_t *)
7182 mpi_reply->EventData);
7183 break;
7184 case MPI2_EVENT_IR_VOLUME:
7185 _scsih_check_volume_delete_events(ioc,
7186 (Mpi2EventDataIrVolume_t *)
7187 mpi_reply->EventData);
7188 break;
7189
7190 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
7191 case MPI2_EVENT_IR_OPERATION_STATUS:
7192 case MPI2_EVENT_SAS_DISCOVERY:
7193 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
7194 case MPI2_EVENT_IR_PHYSICAL_DISK:
7195 break;
7196
7197 default: /* ignore the rest */
7198 return 1;
7199 }
7200
7201 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
7202 if (!fw_event) {
7203 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
7204 ioc->name, __FILE__, __LINE__, __func__);
7205 return 1;
7206 }
7207 sz = le16_to_cpu(mpi_reply->EventDataLength) * 4;
7208 fw_event->event_data = kzalloc(sz, GFP_ATOMIC);
7209 if (!fw_event->event_data) {
7210 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
7211 ioc->name, __FILE__, __LINE__, __func__);
7212 kfree(fw_event);
7213 return 1;
7214 }
7215
7216 memcpy(fw_event->event_data, mpi_reply->EventData, sz);
7217 fw_event->ioc = ioc;
7218 fw_event->VF_ID = mpi_reply->VF_ID;
7219 fw_event->VP_ID = mpi_reply->VP_ID;
7220 fw_event->event = event;
7221 _scsih_fw_event_add(ioc, fw_event);
7222 return 1;
7223}
7224
7225/* shost template */
7226static struct scsi_host_template scsih_driver_template = {
7227 .module = THIS_MODULE,
7228 .name = "Fusion MPT SAS Host",
7229 .proc_name = MPT3SAS_DRIVER_NAME,
7230 .queuecommand = _scsih_qcmd,
7231 .target_alloc = _scsih_target_alloc,
7232 .slave_alloc = _scsih_slave_alloc,
7233 .slave_configure = _scsih_slave_configure,
7234 .target_destroy = _scsih_target_destroy,
7235 .slave_destroy = _scsih_slave_destroy,
7236 .scan_finished = _scsih_scan_finished,
7237 .scan_start = _scsih_scan_start,
7238 .change_queue_depth = _scsih_change_queue_depth,
7239 .change_queue_type = _scsih_change_queue_type,
7240 .eh_abort_handler = _scsih_abort,
7241 .eh_device_reset_handler = _scsih_dev_reset,
7242 .eh_target_reset_handler = _scsih_target_reset,
7243 .eh_host_reset_handler = _scsih_host_reset,
7244 .bios_param = _scsih_bios_param,
7245 .can_queue = 1,
7246 .this_id = -1,
7247 .sg_tablesize = MPT3SAS_SG_DEPTH,
7248 .max_sectors = 32767,
7249 .cmd_per_lun = 7,
7250 .use_clustering = ENABLE_CLUSTERING,
7251 .shost_attrs = mpt3sas_host_attrs,
7252 .sdev_attrs = mpt3sas_dev_attrs,
7253};
7254
7255/**
7256 * _scsih_expander_node_remove - removing expander device from list.
7257 * @ioc: per adapter object
7258 * @sas_expander: the sas_device object
7259 * Context: Calling function should acquire ioc->sas_node_lock.
7260 *
7261 * Removing object and freeing associated memory from the
7262 * ioc->sas_expander_list.
7263 *
7264 * Return nothing.
7265 */
7266static void
7267_scsih_expander_node_remove(struct MPT3SAS_ADAPTER *ioc,
7268 struct _sas_node *sas_expander)
7269{
7270 struct _sas_port *mpt3sas_port, *next;
7271
7272 /* remove sibling ports attached to this expander */
7273 list_for_each_entry_safe(mpt3sas_port, next,
7274 &sas_expander->sas_port_list, port_list) {
7275 if (ioc->shost_recovery)
7276 return;
7277 if (mpt3sas_port->remote_identify.device_type ==
7278 SAS_END_DEVICE)
7279 mpt3sas_device_remove_by_sas_address(ioc,
7280 mpt3sas_port->remote_identify.sas_address);
7281 else if (mpt3sas_port->remote_identify.device_type ==
7282 SAS_EDGE_EXPANDER_DEVICE ||
7283 mpt3sas_port->remote_identify.device_type ==
7284 SAS_FANOUT_EXPANDER_DEVICE)
7285 mpt3sas_expander_remove(ioc,
7286 mpt3sas_port->remote_identify.sas_address);
7287 }
7288
7289 mpt3sas_transport_port_remove(ioc, sas_expander->sas_address,
7290 sas_expander->sas_address_parent);
7291
7292 pr_info(MPT3SAS_FMT
7293 "expander_remove: handle(0x%04x), sas_addr(0x%016llx)\n",
7294 ioc->name,
7295 sas_expander->handle, (unsigned long long)
7296 sas_expander->sas_address);
7297
7298 kfree(sas_expander->phy);
7299 kfree(sas_expander);
7300}
7301
7302/**
7303 * _scsih_ir_shutdown - IR shutdown notification
7304 * @ioc: per adapter object
7305 *
7306 * Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
7307 * the host system is shutting down.
7308 *
7309 * Return nothing.
7310 */
7311static void
7312_scsih_ir_shutdown(struct MPT3SAS_ADAPTER *ioc)
7313{
7314 Mpi2RaidActionRequest_t *mpi_request;
7315 Mpi2RaidActionReply_t *mpi_reply;
7316 u16 smid;
7317
7318 /* is IR firmware build loaded ? */
7319 if (!ioc->ir_firmware)
7320 return;
7321
7322 /* are there any volumes ? */
7323 if (list_empty(&ioc->raid_device_list))
7324 return;
7325
7326 mutex_lock(&ioc->scsih_cmds.mutex);
7327
7328 if (ioc->scsih_cmds.status != MPT3_CMD_NOT_USED) {
7329 pr_err(MPT3SAS_FMT "%s: scsih_cmd in use\n",
7330 ioc->name, __func__);
7331 goto out;
7332 }
7333 ioc->scsih_cmds.status = MPT3_CMD_PENDING;
7334
7335 smid = mpt3sas_base_get_smid(ioc, ioc->scsih_cb_idx);
7336 if (!smid) {
7337 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
7338 ioc->name, __func__);
7339 ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
7340 goto out;
7341 }
7342
7343 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
7344 ioc->scsih_cmds.smid = smid;
7345 memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t));
7346
7347 mpi_request->Function = MPI2_FUNCTION_RAID_ACTION;
7348 mpi_request->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;
7349
7350 pr_info(MPT3SAS_FMT "IR shutdown (sending)\n", ioc->name);
7351 init_completion(&ioc->scsih_cmds.done);
7352 mpt3sas_base_put_smid_default(ioc, smid);
7353 wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
7354
7355 if (!(ioc->scsih_cmds.status & MPT3_CMD_COMPLETE)) {
7356 pr_err(MPT3SAS_FMT "%s: timeout\n",
7357 ioc->name, __func__);
7358 goto out;
7359 }
7360
7361 if (ioc->scsih_cmds.status & MPT3_CMD_REPLY_VALID) {
7362 mpi_reply = ioc->scsih_cmds.reply;
7363 pr_info(MPT3SAS_FMT
7364 "IR shutdown (complete): ioc_status(0x%04x), loginfo(0x%08x)\n",
7365 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
7366 le32_to_cpu(mpi_reply->IOCLogInfo));
7367 }
7368
7369 out:
7370 ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
7371 mutex_unlock(&ioc->scsih_cmds.mutex);
7372}
7373
7374/**
7375 * _scsih_remove - detach and remove add host
7376 * @pdev: PCI device struct
7377 *
7378 * Routine called when unloading the driver.
7379 * Return nothing.
7380 */
6f039790 7381static void _scsih_remove(struct pci_dev *pdev)
f92363d1
SR		 7382{
7383 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7384 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7385 struct _sas_port *mpt3sas_port, *next_port;
7386 struct _raid_device *raid_device, *next;
7387 struct MPT3SAS_TARGET *sas_target_priv_data;
7388 struct workqueue_struct *wq;
7389 unsigned long flags;
7390
7391 ioc->remove_host = 1;
7392 _scsih_fw_event_cleanup_queue(ioc);
7393
7394 spin_lock_irqsave(&ioc->fw_event_lock, flags);
7395 wq = ioc->firmware_event_thread;
7396 ioc->firmware_event_thread = NULL;
7397 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
7398 if (wq)
7399 destroy_workqueue(wq);
7400
7401 /* release all the volumes */
7402 _scsih_ir_shutdown(ioc);
7403 list_for_each_entry_safe(raid_device, next, &ioc->raid_device_list,
7404 list) {
7405 if (raid_device->starget) {
7406 sas_target_priv_data =
7407 raid_device->starget->hostdata;
7408 sas_target_priv_data->deleted = 1;
7409 scsi_remove_target(&raid_device->starget->dev);
7410 }
7411 pr_info(MPT3SAS_FMT "removing handle(0x%04x), wwid(0x%016llx)\n",
7412 ioc->name, raid_device->handle,
7413 (unsigned long long) raid_device->wwid);
7414 _scsih_raid_device_remove(ioc, raid_device);
7415 }
7416
7417 /* free ports attached to the sas_host */
7418 list_for_each_entry_safe(mpt3sas_port, next_port,
7419 &ioc->sas_hba.sas_port_list, port_list) {
7420 if (mpt3sas_port->remote_identify.device_type ==
7421 SAS_END_DEVICE)
7422 mpt3sas_device_remove_by_sas_address(ioc,
7423 mpt3sas_port->remote_identify.sas_address);
7424 else if (mpt3sas_port->remote_identify.device_type ==
7425 SAS_EDGE_EXPANDER_DEVICE ||
7426 mpt3sas_port->remote_identify.device_type ==
7427 SAS_FANOUT_EXPANDER_DEVICE)
7428 mpt3sas_expander_remove(ioc,
7429 mpt3sas_port->remote_identify.sas_address);
7430 }
7431
7432 /* free phys attached to the sas_host */
7433 if (ioc->sas_hba.num_phys) {
7434 kfree(ioc->sas_hba.phy);
7435 ioc->sas_hba.phy = NULL;
7436 ioc->sas_hba.num_phys = 0;
7437 }
7438
7439 sas_remove_host(shost);
7440 mpt3sas_base_detach(ioc);
7441 list_del(&ioc->list);
7442 scsi_remove_host(shost);
7443 scsi_host_put(shost);
7444}
7445
7446/**
7447 * _scsih_shutdown - routine call during system shutdown
7448 * @pdev: PCI device struct
7449 *
7450 * Return nothing.
7451 */
7452static void
7453_scsih_shutdown(struct pci_dev *pdev)
7454{
7455 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7456 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7457 struct workqueue_struct *wq;
7458 unsigned long flags;
7459
7460 ioc->remove_host = 1;
7461 _scsih_fw_event_cleanup_queue(ioc);
7462
7463 spin_lock_irqsave(&ioc->fw_event_lock, flags);
7464 wq = ioc->firmware_event_thread;
7465 ioc->firmware_event_thread = NULL;
7466 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
7467 if (wq)
7468 destroy_workqueue(wq);
7469
7470 _scsih_ir_shutdown(ioc);
7471 mpt3sas_base_detach(ioc);
7472}
7473
7474
7475/**
7476 * _scsih_probe_boot_devices - reports 1st device
7477 * @ioc: per adapter object
7478 *
7479 * If specified in bios page 2, this routine reports the 1st
7480 * device scsi-ml or sas transport for persistent boot device
7481 * purposes. Please refer to function _scsih_determine_boot_device()
7482 */
7483static void
7484_scsih_probe_boot_devices(struct MPT3SAS_ADAPTER *ioc)
7485{
7486 u8 is_raid;
7487 void *device;
7488 struct _sas_device *sas_device;
7489 struct _raid_device *raid_device;
7490 u16 handle;
7491 u64 sas_address_parent;
7492 u64 sas_address;
7493 unsigned long flags;
7494 int rc;
7495
7496 /* no Bios, return immediately */
7497 if (!ioc->bios_pg3.BiosVersion)
7498 return;
7499
7500 device = NULL;
7501 is_raid = 0;
7502 if (ioc->req_boot_device.device) {
7503 device = ioc->req_boot_device.device;
7504 is_raid = ioc->req_boot_device.is_raid;
7505 } else if (ioc->req_alt_boot_device.device) {
7506 device = ioc->req_alt_boot_device.device;
7507 is_raid = ioc->req_alt_boot_device.is_raid;
7508 } else if (ioc->current_boot_device.device) {
7509 device = ioc->current_boot_device.device;
7510 is_raid = ioc->current_boot_device.is_raid;
7511 }
7512
7513 if (!device)
7514 return;
7515
7516 if (is_raid) {
7517 raid_device = device;
7518 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
7519 raid_device->id, 0);
7520 if (rc)
7521 _scsih_raid_device_remove(ioc, raid_device);
7522 } else {
7523 spin_lock_irqsave(&ioc->sas_device_lock, flags);
7524 sas_device = device;
7525 handle = sas_device->handle;
7526 sas_address_parent = sas_device->sas_address_parent;
7527 sas_address = sas_device->sas_address;
7528 list_move_tail(&sas_device->list, &ioc->sas_device_list);
7529 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
7530
7531 if (!mpt3sas_transport_port_add(ioc, handle,
7532 sas_address_parent)) {
7533 _scsih_sas_device_remove(ioc, sas_device);
7534 } else if (!sas_device->starget) {
f5edbe77
SR		 7535 if (!ioc->is_driver_loading) {
7536 mpt3sas_transport_port_remove(ioc,
7537 sas_address,
f92363d1 7538 sas_address_parent);
f5edbe77
SR		 7539 _scsih_sas_device_remove(ioc, sas_device);
7540 }
f92363d1
SR		 7541 }
7542 }
7543}
7544
7545/**
7546 * _scsih_probe_raid - reporting raid volumes to scsi-ml
7547 * @ioc: per adapter object
7548 *
7549 * Called during initial loading of the driver.
7550 */
7551static void
7552_scsih_probe_raid(struct MPT3SAS_ADAPTER *ioc)
7553{
7554 struct _raid_device *raid_device, *raid_next;
7555 int rc;
7556
7557 list_for_each_entry_safe(raid_device, raid_next,
7558 &ioc->raid_device_list, list) {
7559 if (raid_device->starget)
7560 continue;
7561 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
7562 raid_device->id, 0);
7563 if (rc)
7564 _scsih_raid_device_remove(ioc, raid_device);
7565 }
7566}
7567
7568/**
7569 * _scsih_probe_sas - reporting sas devices to sas transport
7570 * @ioc: per adapter object
7571 *
7572 * Called during initial loading of the driver.
7573 */
7574static void
7575_scsih_probe_sas(struct MPT3SAS_ADAPTER *ioc)
7576{
7577 struct _sas_device *sas_device, *next;
7578 unsigned long flags;
7579
7580 /* SAS Device List */
7581 list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list,
7582 list) {
7583
7584 if (!mpt3sas_transport_port_add(ioc, sas_device->handle,
7585 sas_device->sas_address_parent)) {
7586 list_del(&sas_device->list);
7587 kfree(sas_device);
7588 continue;
7589 } else if (!sas_device->starget) {
7590 /*
7591 * When asyn scanning is enabled, its not possible to
7592 * remove devices while scanning is turned on due to an
7593 * oops in scsi_sysfs_add_sdev()->add_device()->
7594 * sysfs_addrm_start()
7595 */
f5edbe77 7596 if (!ioc->is_driver_loading) {
f92363d1
SR		 7597 mpt3sas_transport_port_remove(ioc,
7598 sas_device->sas_address,
7599 sas_device->sas_address_parent);
f5edbe77
SR		 7600 list_del(&sas_device->list);
7601 kfree(sas_device);
7602 continue;
7603 }
f92363d1
SR		 7604 }
7605
7606 spin_lock_irqsave(&ioc->sas_device_lock, flags);
7607 list_move_tail(&sas_device->list, &ioc->sas_device_list);
7608 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
7609 }
7610}
7611
7612/**
7613 * _scsih_probe_devices - probing for devices
7614 * @ioc: per adapter object
7615 *
7616 * Called during initial loading of the driver.
7617 */
7618static void
7619_scsih_probe_devices(struct MPT3SAS_ADAPTER *ioc)
7620{
7621 u16 volume_mapping_flags;
7622
7623 if (!(ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR))
7624 return; /* return when IOC doesn't support initiator mode */
7625
7626 _scsih_probe_boot_devices(ioc);
7627
7628 if (ioc->ir_firmware) {
7629 volume_mapping_flags =
7630 le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) &
7631 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
7632 if (volume_mapping_flags ==
7633 MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) {
7634 _scsih_probe_raid(ioc);
7635 _scsih_probe_sas(ioc);
7636 } else {
7637 _scsih_probe_sas(ioc);
7638 _scsih_probe_raid(ioc);
7639 }
7640 } else
7641 _scsih_probe_sas(ioc);
7642}
7643
7644/**
7645 * _scsih_scan_start - scsi lld callback for .scan_start
7646 * @shost: SCSI host pointer
7647 *
7648 * The shost has the ability to discover targets on its own instead
7649 * of scanning the entire bus. In our implemention, we will kick off
7650 * firmware discovery.
7651 */
7652static void
7653_scsih_scan_start(struct Scsi_Host *shost)
7654{
7655 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7656 int rc;
7657 if (diag_buffer_enable != -1 && diag_buffer_enable != 0)
7658 mpt3sas_enable_diag_buffer(ioc, diag_buffer_enable);
7659
7660 if (disable_discovery > 0)
7661 return;
7662
7663 ioc->start_scan = 1;
7664 rc = mpt3sas_port_enable(ioc);
7665
7666 if (rc != 0)
7667 pr_info(MPT3SAS_FMT "port enable: FAILED\n", ioc->name);
7668}
7669
7670/**
7671 * _scsih_scan_finished - scsi lld callback for .scan_finished
7672 * @shost: SCSI host pointer
7673 * @time: elapsed time of the scan in jiffies
7674 *
7675 * This function will be called periodicallyn until it returns 1 with the
7676 * scsi_host and the elapsed time of the scan in jiffies. In our implemention,
7677 * we wait for firmware discovery to complete, then return 1.
7678 */
7679static int
7680_scsih_scan_finished(struct Scsi_Host *shost, unsigned long time)
7681{
7682 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7683
7684 if (disable_discovery > 0) {
7685 ioc->is_driver_loading = 0;
7686 ioc->wait_for_discovery_to_complete = 0;
7687 return 1;
7688 }
7689
7690 if (time >= (300 * HZ)) {
7691 ioc->base_cmds.status = MPT3_CMD_NOT_USED;
7692 pr_info(MPT3SAS_FMT
7693 "port enable: FAILED with timeout (timeout=300s)\n",
7694 ioc->name);
7695 ioc->is_driver_loading = 0;
7696 return 1;
7697 }
7698
7699 if (ioc->start_scan)
7700 return 0;
7701
7702 if (ioc->start_scan_failed) {
7703 pr_info(MPT3SAS_FMT
7704 "port enable: FAILED with (ioc_status=0x%08x)\n",
7705 ioc->name, ioc->start_scan_failed);
7706 ioc->is_driver_loading = 0;
7707 ioc->wait_for_discovery_to_complete = 0;
7708 ioc->remove_host = 1;
7709 return 1;
7710 }
7711
7712 pr_info(MPT3SAS_FMT "port enable: SUCCESS\n", ioc->name);
7713 ioc->base_cmds.status = MPT3_CMD_NOT_USED;
7714
7715 if (ioc->wait_for_discovery_to_complete) {
7716 ioc->wait_for_discovery_to_complete = 0;
7717 _scsih_probe_devices(ioc);
7718 }
7719 mpt3sas_base_start_watchdog(ioc);
7720 ioc->is_driver_loading = 0;
7721 return 1;
7722}
7723
7724/**
7725 * _scsih_probe - attach and add scsi host
7726 * @pdev: PCI device struct
7727 * @id: pci device id
7728 *
7729 * Returns 0 success, anything else error.
7730 */
7731static int
7732_scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
7733{
7734 struct MPT3SAS_ADAPTER *ioc;
7735 struct Scsi_Host *shost;
7736
7737 shost = scsi_host_alloc(&scsih_driver_template,
7738 sizeof(struct MPT3SAS_ADAPTER));
7739 if (!shost)
7740 return -ENODEV;
7741
7742 /* init local params */
7743 ioc = shost_priv(shost);
7744 memset(ioc, 0, sizeof(struct MPT3SAS_ADAPTER));
7745 INIT_LIST_HEAD(&ioc->list);
7746 list_add_tail(&ioc->list, &mpt3sas_ioc_list);
7747 ioc->shost = shost;
7748 ioc->id = mpt_ids++;
7749 sprintf(ioc->name, "%s%d", MPT3SAS_DRIVER_NAME, ioc->id);
7750 ioc->pdev = pdev;
7751 ioc->scsi_io_cb_idx = scsi_io_cb_idx;
7752 ioc->tm_cb_idx = tm_cb_idx;
7753 ioc->ctl_cb_idx = ctl_cb_idx;
7754 ioc->base_cb_idx = base_cb_idx;
7755 ioc->port_enable_cb_idx = port_enable_cb_idx;
7756 ioc->transport_cb_idx = transport_cb_idx;
7757 ioc->scsih_cb_idx = scsih_cb_idx;
7758 ioc->config_cb_idx = config_cb_idx;
7759 ioc->tm_tr_cb_idx = tm_tr_cb_idx;
7760 ioc->tm_tr_volume_cb_idx = tm_tr_volume_cb_idx;
7761 ioc->tm_sas_control_cb_idx = tm_sas_control_cb_idx;
7762 ioc->logging_level = logging_level;
7763 ioc->schedule_dead_ioc_flush_running_cmds = &_scsih_flush_running_cmds;
7764 /* misc semaphores and spin locks */
7765 mutex_init(&ioc->reset_in_progress_mutex);
7766 spin_lock_init(&ioc->ioc_reset_in_progress_lock);
7767 spin_lock_init(&ioc->scsi_lookup_lock);
7768 spin_lock_init(&ioc->sas_device_lock);
7769 spin_lock_init(&ioc->sas_node_lock);
7770 spin_lock_init(&ioc->fw_event_lock);
7771 spin_lock_init(&ioc->raid_device_lock);
7772 spin_lock_init(&ioc->diag_trigger_lock);
7773
7774 INIT_LIST_HEAD(&ioc->sas_device_list);
7775 INIT_LIST_HEAD(&ioc->sas_device_init_list);
7776 INIT_LIST_HEAD(&ioc->sas_expander_list);
7777 INIT_LIST_HEAD(&ioc->fw_event_list);
7778 INIT_LIST_HEAD(&ioc->raid_device_list);
7779 INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list);
7780 INIT_LIST_HEAD(&ioc->delayed_tr_list);
7781 INIT_LIST_HEAD(&ioc->delayed_tr_volume_list);
cf9bd21a 7782 INIT_LIST_HEAD(&ioc->reply_queue_list);
f92363d1
SR		 7783
7784 /* init shost parameters */
7785 shost->max_cmd_len = 32;
7786 shost->max_lun = max_lun;
7787 shost->transportt = mpt3sas_transport_template;
7788 shost->unique_id = ioc->id;
7789
7790 if (max_sectors != 0xFFFF) {
7791 if (max_sectors < 64) {
7792 shost->max_sectors = 64;
7793 pr_warn(MPT3SAS_FMT "Invalid value %d passed " \
7794 "for max_sectors, range is 64 to 32767. Assigning "
7795 "value of 64.\n", ioc->name, max_sectors);
7796 } else if (max_sectors > 32767) {
7797 shost->max_sectors = 32767;
7798 pr_warn(MPT3SAS_FMT "Invalid value %d passed " \
7799 "for max_sectors, range is 64 to 32767. Assigning "
7800 "default value of 32767.\n", ioc->name,
7801 max_sectors);
7802 } else {
7803 shost->max_sectors = max_sectors & 0xFFFE;
7804 pr_info(MPT3SAS_FMT
7805 "The max_sectors value is set to %d\n",
7806 ioc->name, shost->max_sectors);
7807 }
7808 }
7809
7810 if ((scsi_add_host(shost, &pdev->dev))) {
7811 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
7812 ioc->name, __FILE__, __LINE__, __func__);
7813 list_del(&ioc->list);
7814 goto out_add_shost_fail;
7815 }
7816
7817 /* register EEDP capabilities with SCSI layer */
7818 if (prot_mask > 0)
7819 scsi_host_set_prot(shost, prot_mask);
7820 else
7821 scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
7822 | SHOST_DIF_TYPE2_PROTECTION
7823 | SHOST_DIF_TYPE3_PROTECTION);
7824
7825 scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC);
7826
7827 /* event thread */
7828 snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
7829 "fw_event%d", ioc->id);
7830 ioc->firmware_event_thread = create_singlethread_workqueue(
7831 ioc->firmware_event_name);
7832 if (!ioc->firmware_event_thread) {
7833 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
7834 ioc->name, __FILE__, __LINE__, __func__);
7835 goto out_thread_fail;
7836 }
7837
7838 ioc->is_driver_loading = 1;
7839 if ((mpt3sas_base_attach(ioc))) {
7840 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
7841 ioc->name, __FILE__, __LINE__, __func__);
7842 goto out_attach_fail;
7843 }
7844 scsi_scan_host(shost);
7845 return 0;
7846
7847 out_attach_fail:
7848 destroy_workqueue(ioc->firmware_event_thread);
7849 out_thread_fail:
7850 list_del(&ioc->list);
7851 scsi_remove_host(shost);
7852 out_add_shost_fail:
7853 scsi_host_put(shost);
7854 return -ENODEV;
7855}
7856
7857#ifdef CONFIG_PM
7858/**
7859 * _scsih_suspend - power management suspend main entry point
7860 * @pdev: PCI device struct
7861 * @state: PM state change to (usually PCI_D3)
7862 *
7863 * Returns 0 success, anything else error.
7864 */
7865static int
7866_scsih_suspend(struct pci_dev *pdev, pm_message_t state)
7867{
7868 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7869 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7870 pci_power_t device_state;
7871
7872 mpt3sas_base_stop_watchdog(ioc);
7873 flush_scheduled_work();
7874 scsi_block_requests(shost);
7875 device_state = pci_choose_state(pdev, state);
7876 pr_info(MPT3SAS_FMT
7877 "pdev=0x%p, slot=%s, entering operating state [D%d]\n",
7878 ioc->name, pdev, pci_name(pdev), device_state);
7879
7880 pci_save_state(pdev);
7881 mpt3sas_base_free_resources(ioc);
7882 pci_set_power_state(pdev, device_state);
7883 return 0;
7884}
7885
7886/**
7887 * _scsih_resume - power management resume main entry point
7888 * @pdev: PCI device struct
7889 *
7890 * Returns 0 success, anything else error.
7891 */
7892static int
7893_scsih_resume(struct pci_dev *pdev)
7894{
7895 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7896 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7897 pci_power_t device_state = pdev->current_state;
7898 int r;
7899
7900 pr_info(MPT3SAS_FMT
7901 "pdev=0x%p, slot=%s, previous operating state [D%d]\n",
7902 ioc->name, pdev, pci_name(pdev), device_state);
7903
7904 pci_set_power_state(pdev, PCI_D0);
7905 pci_enable_wake(pdev, PCI_D0, 0);
7906 pci_restore_state(pdev);
7907 ioc->pdev = pdev;
7908 r = mpt3sas_base_map_resources(ioc);
7909 if (r)
7910 return r;
7911
7912 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, SOFT_RESET);
7913 scsi_unblock_requests(shost);
7914 mpt3sas_base_start_watchdog(ioc);
7915 return 0;
7916}
7917#endif /* CONFIG_PM */
7918
7919/**
7920 * _scsih_pci_error_detected - Called when a PCI error is detected.
7921 * @pdev: PCI device struct
7922 * @state: PCI channel state
7923 *
7924 * Description: Called when a PCI error is detected.
7925 *
7926 * Return value:
7927 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
7928 */
7929static pci_ers_result_t
7930_scsih_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
7931{
7932 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7933 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7934
7935 pr_info(MPT3SAS_FMT "PCI error: detected callback, state(%d)!!\n",
7936 ioc->name, state);
7937
7938 switch (state) {
7939 case pci_channel_io_normal:
7940 return PCI_ERS_RESULT_CAN_RECOVER;
7941 case pci_channel_io_frozen:
7942 /* Fatal error, prepare for slot reset */
7943 ioc->pci_error_recovery = 1;
7944 scsi_block_requests(ioc->shost);
7945 mpt3sas_base_stop_watchdog(ioc);
7946 mpt3sas_base_free_resources(ioc);
7947 return PCI_ERS_RESULT_NEED_RESET;
7948 case pci_channel_io_perm_failure:
7949 /* Permanent error, prepare for device removal */
7950 ioc->pci_error_recovery = 1;
7951 mpt3sas_base_stop_watchdog(ioc);
7952 _scsih_flush_running_cmds(ioc);
7953 return PCI_ERS_RESULT_DISCONNECT;
7954 }
7955 return PCI_ERS_RESULT_NEED_RESET;
7956}
7957
7958/**
7959 * _scsih_pci_slot_reset - Called when PCI slot has been reset.
7960 * @pdev: PCI device struct
7961 *
7962 * Description: This routine is called by the pci error recovery
7963 * code after the PCI slot has been reset, just before we
7964 * should resume normal operations.
7965 */
7966static pci_ers_result_t
7967_scsih_pci_slot_reset(struct pci_dev *pdev)
7968{
7969 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7970 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7971 int rc;
7972
7973 pr_info(MPT3SAS_FMT "PCI error: slot reset callback!!\n",
7974 ioc->name);
7975
7976 ioc->pci_error_recovery = 0;
7977 ioc->pdev = pdev;
7978 pci_restore_state(pdev);
7979 rc = mpt3sas_base_map_resources(ioc);
7980 if (rc)
7981 return PCI_ERS_RESULT_DISCONNECT;
7982
7983 rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
7984 FORCE_BIG_HAMMER);
7985
7986 pr_warn(MPT3SAS_FMT "hard reset: %s\n", ioc->name,
7987 (rc == 0) ? "success" : "failed");
7988
7989 if (!rc)
7990 return PCI_ERS_RESULT_RECOVERED;
7991 else
7992 return PCI_ERS_RESULT_DISCONNECT;
7993}
7994
7995/**
7996 * _scsih_pci_resume() - resume normal ops after PCI reset
7997 * @pdev: pointer to PCI device
7998 *
7999 * Called when the error recovery driver tells us that its
8000 * OK to resume normal operation. Use completion to allow
8001 * halted scsi ops to resume.
8002 */
8003static void
8004_scsih_pci_resume(struct pci_dev *pdev)
8005{
8006 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8007 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
8008
8009 pr_info(MPT3SAS_FMT "PCI error: resume callback!!\n", ioc->name);
8010
8011 pci_cleanup_aer_uncorrect_error_status(pdev);
8012 mpt3sas_base_start_watchdog(ioc);
8013 scsi_unblock_requests(ioc->shost);
8014}
8015
8016/**
8017 * _scsih_pci_mmio_enabled - Enable MMIO and dump debug registers
8018 * @pdev: pointer to PCI device
8019 */
8020static pci_ers_result_t
8021_scsih_pci_mmio_enabled(struct pci_dev *pdev)
8022{
8023 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8024 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
8025
8026 pr_info(MPT3SAS_FMT "PCI error: mmio enabled callback!!\n",
8027 ioc->name);
8028
8029 /* TODO - dump whatever for debugging purposes */
8030
8031 /* Request a slot reset. */
8032 return PCI_ERS_RESULT_NEED_RESET;
8033}
8034
8035/* raid transport support */
8036static struct raid_function_template mpt3sas_raid_functions = {
8037 .cookie = &scsih_driver_template,
8038 .is_raid = _scsih_is_raid,
8039 .get_resync = _scsih_get_resync,
8040 .get_state = _scsih_get_state,
8041};
8042
8043static struct pci_error_handlers _scsih_err_handler = {
8044 .error_detected = _scsih_pci_error_detected,
8045 .mmio_enabled = _scsih_pci_mmio_enabled,
8046 .slot_reset = _scsih_pci_slot_reset,
8047 .resume = _scsih_pci_resume,
8048};
8049
8050static struct pci_driver scsih_driver = {
8051 .name = MPT3SAS_DRIVER_NAME,
8052 .id_table = scsih_pci_table,
8053 .probe = _scsih_probe,
6f039790 8054 .remove = _scsih_remove,
f92363d1
SR		 8055 .shutdown = _scsih_shutdown,
8056 .err_handler = &_scsih_err_handler,
8057#ifdef CONFIG_PM
8058 .suspend = _scsih_suspend,
8059 .resume = _scsih_resume,
8060#endif
8061};
8062
8063
8064/**
8065 * _scsih_init - main entry point for this driver.
8066 *
8067 * Returns 0 success, anything else error.
8068 */
8069static int __init
8070_scsih_init(void)
8071{
8072 int error;
8073
8074 mpt_ids = 0;
8075
8076 pr_info("%s version %s loaded\n", MPT3SAS_DRIVER_NAME,
8077 MPT3SAS_DRIVER_VERSION);
8078
8079 mpt3sas_transport_template =
8080 sas_attach_transport(&mpt3sas_transport_functions);
8081 if (!mpt3sas_transport_template)
8082 return -ENODEV;
8083
8084/* raid transport support */
8085 mpt3sas_raid_template = raid_class_attach(&mpt3sas_raid_functions);
8086 if (!mpt3sas_raid_template) {
8087 sas_release_transport(mpt3sas_transport_template);
8088 return -ENODEV;
8089 }
8090
8091 mpt3sas_base_initialize_callback_handler();
8092
8093 /* queuecommand callback hander */
8094 scsi_io_cb_idx = mpt3sas_base_register_callback_handler(_scsih_io_done);
8095
8096 /* task managment callback handler */
8097 tm_cb_idx = mpt3sas_base_register_callback_handler(_scsih_tm_done);
8098
8099 /* base internal commands callback handler */
8100 base_cb_idx = mpt3sas_base_register_callback_handler(mpt3sas_base_done);
8101 port_enable_cb_idx = mpt3sas_base_register_callback_handler(
8102 mpt3sas_port_enable_done);
8103
8104 /* transport internal commands callback handler */
8105 transport_cb_idx = mpt3sas_base_register_callback_handler(
8106 mpt3sas_transport_done);
8107
8108 /* scsih internal commands callback handler */
8109 scsih_cb_idx = mpt3sas_base_register_callback_handler(_scsih_done);
8110
8111 /* configuration page API internal commands callback handler */
8112 config_cb_idx = mpt3sas_base_register_callback_handler(
8113 mpt3sas_config_done);
8114
8115 /* ctl module callback handler */
8116 ctl_cb_idx = mpt3sas_base_register_callback_handler(mpt3sas_ctl_done);
8117
8118 tm_tr_cb_idx = mpt3sas_base_register_callback_handler(
8119 _scsih_tm_tr_complete);
8120
8121 tm_tr_volume_cb_idx = mpt3sas_base_register_callback_handler(
8122 _scsih_tm_volume_tr_complete);
8123
8124 tm_sas_control_cb_idx = mpt3sas_base_register_callback_handler(
8125 _scsih_sas_control_complete);
8126
8127 mpt3sas_ctl_init();
8128
8129 error = pci_register_driver(&scsih_driver);
8130 if (error) {
8131 /* raid transport support */
8132 raid_class_release(mpt3sas_raid_template);
8133 sas_release_transport(mpt3sas_transport_template);
8134 }
8135
8136 return error;
8137}
8138
8139/**
8140 * _scsih_exit - exit point for this driver (when it is a module).
8141 *
8142 * Returns 0 success, anything else error.
8143 */
8144static void __exit
8145_scsih_exit(void)
8146{
8147 pr_info("mpt3sas version %s unloading\n",
8148 MPT3SAS_DRIVER_VERSION);
8149
8150 mpt3sas_ctl_exit();
8151
8152 pci_unregister_driver(&scsih_driver);
8153
8154
8155 mpt3sas_base_release_callback_handler(scsi_io_cb_idx);
8156 mpt3sas_base_release_callback_handler(tm_cb_idx);
8157 mpt3sas_base_release_callback_handler(base_cb_idx);
8158 mpt3sas_base_release_callback_handler(port_enable_cb_idx);
8159 mpt3sas_base_release_callback_handler(transport_cb_idx);
8160 mpt3sas_base_release_callback_handler(scsih_cb_idx);
8161 mpt3sas_base_release_callback_handler(config_cb_idx);
8162 mpt3sas_base_release_callback_handler(ctl_cb_idx);
8163
8164 mpt3sas_base_release_callback_handler(tm_tr_cb_idx);
8165 mpt3sas_base_release_callback_handler(tm_tr_volume_cb_idx);
8166 mpt3sas_base_release_callback_handler(tm_sas_control_cb_idx);
8167
8168/* raid transport support */
8169 raid_class_release(mpt3sas_raid_template);
8170 sas_release_transport(mpt3sas_transport_template);
8171}
8172
8173module_init(_scsih_init);
8174module_exit(_scsih_exit);
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