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mpt2sas: delay scsi_add_host call to work with scsi-mq
[linux-2.6-block.git] / drivers / scsi / mpt3sas / mpt3sas_scsih.c
CommitLineData
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)
1abf635d
HR		 115static u64 max_lun = MPT3SAS_MAX_LUN;
116module_param(max_lun, ullong, 0);
f92363d1
SR		 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;
35b62362 193 char event_data[0] __aligned(4);
f92363d1
SR		 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
62c4da44
JL		 1166 sas_target_priv_data = kzalloc(sizeof(*sas_target_priv_data),
1167 GFP_KERNEL);
f92363d1
SR		 1168 if (!sas_target_priv_data)
1169 return -ENOMEM;
1170
1171 starget->hostdata = sas_target_priv_data;
1172 sas_target_priv_data->starget = starget;
1173 sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE;
1174
1175 /* RAID volumes */
1176 if (starget->channel == RAID_CHANNEL) {
1177 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1178 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1179 starget->channel);
1180 if (raid_device) {
1181 sas_target_priv_data->handle = raid_device->handle;
1182 sas_target_priv_data->sas_address = raid_device->wwid;
1183 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME;
1184 raid_device->starget = starget;
1185 }
1186 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1187 return 0;
1188 }
1189
1190 /* sas/sata devices */
1191 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1192 rphy = dev_to_rphy(starget->dev.parent);
1193 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
1194 rphy->identify.sas_address);
1195
1196 if (sas_device) {
1197 sas_target_priv_data->handle = sas_device->handle;
1198 sas_target_priv_data->sas_address = sas_device->sas_address;
1199 sas_device->starget = starget;
1200 sas_device->id = starget->id;
1201 sas_device->channel = starget->channel;
1202 if (test_bit(sas_device->handle, ioc->pd_handles))
1203 sas_target_priv_data->flags |=
1204 MPT_TARGET_FLAGS_RAID_COMPONENT;
1205 if (sas_device->fast_path)
1206 sas_target_priv_data->flags |= MPT_TARGET_FASTPATH_IO;
1207 }
1208 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1209
1210 return 0;
1211}
1212
1213/**
1214 * _scsih_target_destroy - target destroy routine
1215 * @starget: scsi target struct
1216 *
1217 * Returns nothing.
1218 */
1219static void
1220_scsih_target_destroy(struct scsi_target *starget)
1221{
1222 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1223 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
1224 struct MPT3SAS_TARGET *sas_target_priv_data;
1225 struct _sas_device *sas_device;
1226 struct _raid_device *raid_device;
1227 unsigned long flags;
1228 struct sas_rphy *rphy;
1229
1230 sas_target_priv_data = starget->hostdata;
1231 if (!sas_target_priv_data)
1232 return;
1233
1234 if (starget->channel == RAID_CHANNEL) {
1235 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1236 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1237 starget->channel);
1238 if (raid_device) {
1239 raid_device->starget = NULL;
1240 raid_device->sdev = NULL;
1241 }
1242 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1243 goto out;
1244 }
1245
1246 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1247 rphy = dev_to_rphy(starget->dev.parent);
1248 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
1249 rphy->identify.sas_address);
1250 if (sas_device && (sas_device->starget == starget) &&
1251 (sas_device->id == starget->id) &&
1252 (sas_device->channel == starget->channel))
1253 sas_device->starget = NULL;
1254
1255 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1256
1257 out:
1258 kfree(sas_target_priv_data);
1259 starget->hostdata = NULL;
1260}
1261
1262/**
1263 * _scsih_slave_alloc - device add routine
1264 * @sdev: scsi device struct
1265 *
1266 * Returns 0 if ok. Any other return is assumed to be an error and
1267 * the device is ignored.
1268 */
1269static int
1270_scsih_slave_alloc(struct scsi_device *sdev)
1271{
1272 struct Scsi_Host *shost;
1273 struct MPT3SAS_ADAPTER *ioc;
1274 struct MPT3SAS_TARGET *sas_target_priv_data;
1275 struct MPT3SAS_DEVICE *sas_device_priv_data;
1276 struct scsi_target *starget;
1277 struct _raid_device *raid_device;
b65cfedf 1278 struct _sas_device *sas_device;
f92363d1
SR		 1279 unsigned long flags;
1280
62c4da44
JL		 1281 sas_device_priv_data = kzalloc(sizeof(*sas_device_priv_data),
1282 GFP_KERNEL);
f92363d1
SR		 1283 if (!sas_device_priv_data)
1284 return -ENOMEM;
1285
1286 sas_device_priv_data->lun = sdev->lun;
1287 sas_device_priv_data->flags = MPT_DEVICE_FLAGS_INIT;
1288
1289 starget = scsi_target(sdev);
1290 sas_target_priv_data = starget->hostdata;
1291 sas_target_priv_data->num_luns++;
1292 sas_device_priv_data->sas_target = sas_target_priv_data;
1293 sdev->hostdata = sas_device_priv_data;
1294 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT))
1295 sdev->no_uld_attach = 1;
1296
1297 shost = dev_to_shost(&starget->dev);
1298 ioc = shost_priv(shost);
1299 if (starget->channel == RAID_CHANNEL) {
1300 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1301 raid_device = _scsih_raid_device_find_by_id(ioc,
1302 starget->id, starget->channel);
1303 if (raid_device)
1304 raid_device->sdev = sdev; /* raid is single lun */
1305 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1306 }
1307
b65cfedf
SR		 1308 if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) {
1309 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1310 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
1311 sas_target_priv_data->sas_address);
1312 if (sas_device && (sas_device->starget == NULL)) {
1313 sdev_printk(KERN_INFO, sdev,
1314 "%s : sas_device->starget set to starget @ %d\n",
1315 __func__, __LINE__);
1316 sas_device->starget = starget;
1317 }
1318 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1319 }
1320
f92363d1
SR		 1321 return 0;
1322}
1323
1324/**
1325 * _scsih_slave_destroy - device destroy routine
1326 * @sdev: scsi device struct
1327 *
1328 * Returns nothing.
1329 */
1330static void
1331_scsih_slave_destroy(struct scsi_device *sdev)
1332{
1333 struct MPT3SAS_TARGET *sas_target_priv_data;
1334 struct scsi_target *starget;
1335 struct Scsi_Host *shost;
1336 struct MPT3SAS_ADAPTER *ioc;
1337 struct _sas_device *sas_device;
1338 unsigned long flags;
1339
1340 if (!sdev->hostdata)
1341 return;
1342
1343 starget = scsi_target(sdev);
1344 sas_target_priv_data = starget->hostdata;
1345 sas_target_priv_data->num_luns--;
1346
1347 shost = dev_to_shost(&starget->dev);
1348 ioc = shost_priv(shost);
1349
1350 if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) {
1351 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1352 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
1353 sas_target_priv_data->sas_address);
1354 if (sas_device && !sas_target_priv_data->num_luns)
1355 sas_device->starget = NULL;
1356 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1357 }
1358
1359 kfree(sdev->hostdata);
1360 sdev->hostdata = NULL;
1361}
1362
1363/**
1364 * _scsih_display_sata_capabilities - sata capabilities
1365 * @ioc: per adapter object
1366 * @handle: device handle
1367 * @sdev: scsi device struct
1368 */
1369static void
1370_scsih_display_sata_capabilities(struct MPT3SAS_ADAPTER *ioc,
1371 u16 handle, struct scsi_device *sdev)
1372{
1373 Mpi2ConfigReply_t mpi_reply;
1374 Mpi2SasDevicePage0_t sas_device_pg0;
1375 u32 ioc_status;
1376 u16 flags;
1377 u32 device_info;
1378
1379 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
1380 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
1381 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
1382 ioc->name, __FILE__, __LINE__, __func__);
1383 return;
1384 }
1385
1386 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1387 MPI2_IOCSTATUS_MASK;
1388 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
1389 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
1390 ioc->name, __FILE__, __LINE__, __func__);
1391 return;
1392 }
1393
1394 flags = le16_to_cpu(sas_device_pg0.Flags);
1395 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
1396
1397 sdev_printk(KERN_INFO, sdev,
1398 "atapi(%s), ncq(%s), asyn_notify(%s), smart(%s), fua(%s), "
1399 "sw_preserve(%s)\n",
1400 (device_info & MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? "y" : "n",
1401 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED) ? "y" : "n",
1402 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY) ? "y" :
1403 "n",
1404 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SMART_SUPPORTED) ? "y" : "n",
1405 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED) ? "y" : "n",
1406 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SW_PRESERVE) ? "y" : "n");
1407}
1408
1409/*
1410 * raid transport support -
1411 * Enabled for SLES11 and newer, in older kernels the driver will panic when
1412 * unloading the driver followed by a load - I beleive that the subroutine
1413 * raid_class_release() is not cleaning up properly.
1414 */
1415
1416/**
1417 * _scsih_is_raid - return boolean indicating device is raid volume
1418 * @dev the device struct object
1419 */
1420static int
1421_scsih_is_raid(struct device *dev)
1422{
1423 struct scsi_device *sdev = to_scsi_device(dev);
1424
1425 return (sdev->channel == RAID_CHANNEL) ? 1 : 0;
1426}
1427
1428/**
1429 * _scsih_get_resync - get raid volume resync percent complete
1430 * @dev the device struct object
1431 */
1432static void
1433_scsih_get_resync(struct device *dev)
1434{
1435 struct scsi_device *sdev = to_scsi_device(dev);
1436 struct MPT3SAS_ADAPTER *ioc = shost_priv(sdev->host);
1437 static struct _raid_device *raid_device;
1438 unsigned long flags;
1439 Mpi2RaidVolPage0_t vol_pg0;
1440 Mpi2ConfigReply_t mpi_reply;
1441 u32 volume_status_flags;
1442 u8 percent_complete;
1443 u16 handle;
1444
1445 percent_complete = 0;
1446 handle = 0;
1447 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1448 raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
1449 sdev->channel);
1450 if (raid_device) {
1451 handle = raid_device->handle;
1452 percent_complete = raid_device->percent_complete;
1453 }
1454 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1455
1456 if (!handle)
1457 goto out;
1458
1459 if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
1460 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
1461 sizeof(Mpi2RaidVolPage0_t))) {
1462 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
1463 ioc->name, __FILE__, __LINE__, __func__);
1464 percent_complete = 0;
1465 goto out;
1466 }
1467
1468 volume_status_flags = le32_to_cpu(vol_pg0.VolumeStatusFlags);
1469 if (!(volume_status_flags &
1470 MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS))
1471 percent_complete = 0;
1472
1473 out:
1474 raid_set_resync(mpt3sas_raid_template, dev, percent_complete);
1475}
1476
1477/**
1478 * _scsih_get_state - get raid volume level
1479 * @dev the device struct object
1480 */
1481static void
1482_scsih_get_state(struct device *dev)
1483{
1484 struct scsi_device *sdev = to_scsi_device(dev);
1485 struct MPT3SAS_ADAPTER *ioc = shost_priv(sdev->host);
1486 static struct _raid_device *raid_device;
1487 unsigned long flags;
1488 Mpi2RaidVolPage0_t vol_pg0;
1489 Mpi2ConfigReply_t mpi_reply;
1490 u32 volstate;
1491 enum raid_state state = RAID_STATE_UNKNOWN;
1492 u16 handle = 0;
1493
1494 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1495 raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
1496 sdev->channel);
1497 if (raid_device)
1498 handle = raid_device->handle;
1499 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1500
1501 if (!raid_device)
1502 goto out;
1503
1504 if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
1505 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
1506 sizeof(Mpi2RaidVolPage0_t))) {
1507 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
1508 ioc->name, __FILE__, __LINE__, __func__);
1509 goto out;
1510 }
1511
1512 volstate = le32_to_cpu(vol_pg0.VolumeStatusFlags);
1513 if (volstate & MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS) {
1514 state = RAID_STATE_RESYNCING;
1515 goto out;
1516 }
1517
1518 switch (vol_pg0.VolumeState) {
1519 case MPI2_RAID_VOL_STATE_OPTIMAL:
1520 case MPI2_RAID_VOL_STATE_ONLINE:
1521 state = RAID_STATE_ACTIVE;
1522 break;
1523 case MPI2_RAID_VOL_STATE_DEGRADED:
1524 state = RAID_STATE_DEGRADED;
1525 break;
1526 case MPI2_RAID_VOL_STATE_FAILED:
1527 case MPI2_RAID_VOL_STATE_MISSING:
1528 state = RAID_STATE_OFFLINE;
1529 break;
1530 }
1531 out:
1532 raid_set_state(mpt3sas_raid_template, dev, state);
1533}
1534
1535/**
1536 * _scsih_set_level - set raid level
1537 * @sdev: scsi device struct
1538 * @volume_type: volume type
1539 */
1540static void
1541_scsih_set_level(struct scsi_device *sdev, u8 volume_type)
1542{
1543 enum raid_level level = RAID_LEVEL_UNKNOWN;
1544
1545 switch (volume_type) {
1546 case MPI2_RAID_VOL_TYPE_RAID0:
1547 level = RAID_LEVEL_0;
1548 break;
1549 case MPI2_RAID_VOL_TYPE_RAID10:
1550 level = RAID_LEVEL_10;
1551 break;
1552 case MPI2_RAID_VOL_TYPE_RAID1E:
1553 level = RAID_LEVEL_1E;
1554 break;
1555 case MPI2_RAID_VOL_TYPE_RAID1:
1556 level = RAID_LEVEL_1;
1557 break;
1558 }
1559
1560 raid_set_level(mpt3sas_raid_template, &sdev->sdev_gendev, level);
1561}
1562
1563
1564/**
1565 * _scsih_get_volume_capabilities - volume capabilities
1566 * @ioc: per adapter object
1567 * @sas_device: the raid_device object
1568 *
1569 * Returns 0 for success, else 1
1570 */
1571static int
1572_scsih_get_volume_capabilities(struct MPT3SAS_ADAPTER *ioc,
1573 struct _raid_device *raid_device)
1574{
1575 Mpi2RaidVolPage0_t *vol_pg0;
1576 Mpi2RaidPhysDiskPage0_t pd_pg0;
1577 Mpi2SasDevicePage0_t sas_device_pg0;
1578 Mpi2ConfigReply_t mpi_reply;
1579 u16 sz;
1580 u8 num_pds;
1581
1582 if ((mpt3sas_config_get_number_pds(ioc, raid_device->handle,
1583 &num_pds)) || !num_pds) {
1584 dfailprintk(ioc, pr_warn(MPT3SAS_FMT
1585 "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
1586 __func__));
1587 return 1;
1588 }
1589
1590 raid_device->num_pds = num_pds;
1591 sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
1592 sizeof(Mpi2RaidVol0PhysDisk_t));
1593 vol_pg0 = kzalloc(sz, GFP_KERNEL);
1594 if (!vol_pg0) {
1595 dfailprintk(ioc, pr_warn(MPT3SAS_FMT
1596 "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
1597 __func__));
1598 return 1;
1599 }
1600
1601 if ((mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
1602 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
1603 dfailprintk(ioc, pr_warn(MPT3SAS_FMT
1604 "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
1605 __func__));
1606 kfree(vol_pg0);
1607 return 1;
1608 }
1609
1610 raid_device->volume_type = vol_pg0->VolumeType;
1611
1612 /* figure out what the underlying devices are by
1613 * obtaining the device_info bits for the 1st device
1614 */
1615 if (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
1616 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
1617 vol_pg0->PhysDisk[0].PhysDiskNum))) {
1618 if (!(mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
1619 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
1620 le16_to_cpu(pd_pg0.DevHandle)))) {
1621 raid_device->device_info =
1622 le32_to_cpu(sas_device_pg0.DeviceInfo);
1623 }
1624 }
1625
1626 kfree(vol_pg0);
1627 return 0;
1628}
1629
1630
1631
1632/**
1633 * _scsih_enable_tlr - setting TLR flags
1634 * @ioc: per adapter object
1635 * @sdev: scsi device struct
1636 *
1637 * Enabling Transaction Layer Retries for tape devices when
1638 * vpd page 0x90 is present
1639 *
1640 */
1641static void
1642_scsih_enable_tlr(struct MPT3SAS_ADAPTER *ioc, struct scsi_device *sdev)
1643{
1644
1645 /* only for TAPE */
1646 if (sdev->type != TYPE_TAPE)
1647 return;
1648
1649 if (!(ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR))
1650 return;
1651
1652 sas_enable_tlr(sdev);
1653 sdev_printk(KERN_INFO, sdev, "TLR %s\n",
1654 sas_is_tlr_enabled(sdev) ? "Enabled" : "Disabled");
1655 return;
1656
1657}
1658
1659/**
1660 * _scsih_slave_configure - device configure routine.
1661 * @sdev: scsi device struct
1662 *
1663 * Returns 0 if ok. Any other return is assumed to be an error and
1664 * the device is ignored.
1665 */
1666static int
1667_scsih_slave_configure(struct scsi_device *sdev)
1668{
1669 struct Scsi_Host *shost = sdev->host;
1670 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
1671 struct MPT3SAS_DEVICE *sas_device_priv_data;
1672 struct MPT3SAS_TARGET *sas_target_priv_data;
1673 struct _sas_device *sas_device;
1674 struct _raid_device *raid_device;
1675 unsigned long flags;
1676 int qdepth;
1677 u8 ssp_target = 0;
1678 char *ds = "";
1679 char *r_level = "";
1680 u16 handle, volume_handle = 0;
1681 u64 volume_wwid = 0;
1682
1683 qdepth = 1;
1684 sas_device_priv_data = sdev->hostdata;
1685 sas_device_priv_data->configured_lun = 1;
1686 sas_device_priv_data->flags &= ~MPT_DEVICE_FLAGS_INIT;
1687 sas_target_priv_data = sas_device_priv_data->sas_target;
1688 handle = sas_target_priv_data->handle;
1689
1690 /* raid volume handling */
1691 if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME) {
1692
1693 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1694 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
1695 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1696 if (!raid_device) {
1697 dfailprintk(ioc, pr_warn(MPT3SAS_FMT
1698 "failure at %s:%d/%s()!\n", ioc->name, __FILE__,
1699 __LINE__, __func__));
1700 return 1;
1701 }
1702
1703 if (_scsih_get_volume_capabilities(ioc, raid_device)) {
1704 dfailprintk(ioc, pr_warn(MPT3SAS_FMT
1705 "failure at %s:%d/%s()!\n", ioc->name, __FILE__,
1706 __LINE__, __func__));
1707 return 1;
1708 }
1709
1710
1711 /* RAID Queue Depth Support
1712 * IS volume = underlying qdepth of drive type, either
1713 * MPT3SAS_SAS_QUEUE_DEPTH or MPT3SAS_SATA_QUEUE_DEPTH
1714 * IM/IME/R10 = 128 (MPT3SAS_RAID_QUEUE_DEPTH)
1715 */
1716 if (raid_device->device_info &
1717 MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
1718 qdepth = MPT3SAS_SAS_QUEUE_DEPTH;
1719 ds = "SSP";
1720 } else {
1721 qdepth = MPT3SAS_SATA_QUEUE_DEPTH;
1722 if (raid_device->device_info &
1723 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1724 ds = "SATA";
1725 else
1726 ds = "STP";
1727 }
1728
1729 switch (raid_device->volume_type) {
1730 case MPI2_RAID_VOL_TYPE_RAID0:
1731 r_level = "RAID0";
1732 break;
1733 case MPI2_RAID_VOL_TYPE_RAID1E:
1734 qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
1735 if (ioc->manu_pg10.OEMIdentifier &&
1736 (le32_to_cpu(ioc->manu_pg10.GenericFlags0) &
1737 MFG10_GF0_R10_DISPLAY) &&
1738 !(raid_device->num_pds % 2))
1739 r_level = "RAID10";
1740 else
1741 r_level = "RAID1E";
1742 break;
1743 case MPI2_RAID_VOL_TYPE_RAID1:
1744 qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
1745 r_level = "RAID1";
1746 break;
1747 case MPI2_RAID_VOL_TYPE_RAID10:
1748 qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
1749 r_level = "RAID10";
1750 break;
1751 case MPI2_RAID_VOL_TYPE_UNKNOWN:
1752 default:
1753 qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
1754 r_level = "RAIDX";
1755 break;
1756 }
1757
1758 sdev_printk(KERN_INFO, sdev,
1759 "%s: handle(0x%04x), wwid(0x%016llx), pd_count(%d), type(%s)\n",
1760 r_level, raid_device->handle,
1761 (unsigned long long)raid_device->wwid,
1762 raid_device->num_pds, ds);
1763
1764
1765 _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
1766
1767/* raid transport support */
1768 _scsih_set_level(sdev, raid_device->volume_type);
1769 return 0;
1770 }
1771
1772 /* non-raid handling */
1773 if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1774 if (mpt3sas_config_get_volume_handle(ioc, handle,
1775 &volume_handle)) {
1776 dfailprintk(ioc, pr_warn(MPT3SAS_FMT
1777 "failure at %s:%d/%s()!\n", ioc->name,
1778 __FILE__, __LINE__, __func__));
1779 return 1;
1780 }
1781 if (volume_handle && mpt3sas_config_get_volume_wwid(ioc,
1782 volume_handle, &volume_wwid)) {
1783 dfailprintk(ioc, pr_warn(MPT3SAS_FMT
1784 "failure at %s:%d/%s()!\n", ioc->name,
1785 __FILE__, __LINE__, __func__));
1786 return 1;
1787 }
1788 }
1789
1790 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1791 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
1792 sas_device_priv_data->sas_target->sas_address);
1793 if (!sas_device) {
1794 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1795 dfailprintk(ioc, pr_warn(MPT3SAS_FMT
1796 "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
1797 __func__));
1798 return 1;
1799 }
1800
1801 sas_device->volume_handle = volume_handle;
1802 sas_device->volume_wwid = volume_wwid;
1803 if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
1804 qdepth = MPT3SAS_SAS_QUEUE_DEPTH;
1805 ssp_target = 1;
1806 ds = "SSP";
1807 } else {
1808 qdepth = MPT3SAS_SATA_QUEUE_DEPTH;
1809 if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET)
1810 ds = "STP";
1811 else if (sas_device->device_info &
1812 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1813 ds = "SATA";
1814 }
1815
1816 sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), " \
1817 "sas_addr(0x%016llx), phy(%d), device_name(0x%016llx)\n",
1818 ds, handle, (unsigned long long)sas_device->sas_address,
1819 sas_device->phy, (unsigned long long)sas_device->device_name);
1820 sdev_printk(KERN_INFO, sdev,
1821 "%s: enclosure_logical_id(0x%016llx), slot(%d)\n",
1822 ds, (unsigned long long)
1823 sas_device->enclosure_logical_id, sas_device->slot);
1824
1825 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1826
1827 if (!ssp_target)
1828 _scsih_display_sata_capabilities(ioc, handle, sdev);
1829
1830
1831 _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
1832
1833 if (ssp_target) {
1834 sas_read_port_mode_page(sdev);
1835 _scsih_enable_tlr(ioc, sdev);
1836 }
1837
1838 return 0;
1839}
1840
1841/**
1842 * _scsih_bios_param - fetch head, sector, cylinder info for a disk
1843 * @sdev: scsi device struct
1844 * @bdev: pointer to block device context
1845 * @capacity: device size (in 512 byte sectors)
1846 * @params: three element array to place output:
1847 * params[0] number of heads (max 255)
1848 * params[1] number of sectors (max 63)
1849 * params[2] number of cylinders
1850 *
1851 * Return nothing.
1852 */
1853static int
1854_scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev,
1855 sector_t capacity, int params[])
1856{
1857 int heads;
1858 int sectors;
1859 sector_t cylinders;
1860 ulong dummy;
1861
1862 heads = 64;
1863 sectors = 32;
1864
1865 dummy = heads * sectors;
1866 cylinders = capacity;
1867 sector_div(cylinders, dummy);
1868
1869 /*
1870 * Handle extended translation size for logical drives
1871 * > 1Gb
1872 */
1873 if ((ulong)capacity >= 0x200000) {
1874 heads = 255;
1875 sectors = 63;
1876 dummy = heads * sectors;
1877 cylinders = capacity;
1878 sector_div(cylinders, dummy);
1879 }
1880
1881 /* return result */
1882 params[0] = heads;
1883 params[1] = sectors;
1884 params[2] = cylinders;
1885
1886 return 0;
1887}
1888
1889/**
1890 * _scsih_response_code - translation of device response code
1891 * @ioc: per adapter object
1892 * @response_code: response code returned by the device
1893 *
1894 * Return nothing.
1895 */
1896static void
1897_scsih_response_code(struct MPT3SAS_ADAPTER *ioc, u8 response_code)
1898{
1899 char *desc;
1900
1901 switch (response_code) {
1902 case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE:
1903 desc = "task management request completed";
1904 break;
1905 case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME:
1906 desc = "invalid frame";
1907 break;
1908 case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
1909 desc = "task management request not supported";
1910 break;
1911 case MPI2_SCSITASKMGMT_RSP_TM_FAILED:
1912 desc = "task management request failed";
1913 break;
1914 case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED:
1915 desc = "task management request succeeded";
1916 break;
1917 case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN:
1918 desc = "invalid lun";
1919 break;
1920 case 0xA:
1921 desc = "overlapped tag attempted";
1922 break;
1923 case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
1924 desc = "task queued, however not sent to target";
1925 break;
1926 default:
1927 desc = "unknown";
1928 break;
1929 }
1930 pr_warn(MPT3SAS_FMT "response_code(0x%01x): %s\n",
1931 ioc->name, response_code, desc);
1932}
1933
1934/**
1935 * _scsih_tm_done - tm completion routine
1936 * @ioc: per adapter object
1937 * @smid: system request message index
1938 * @msix_index: MSIX table index supplied by the OS
1939 * @reply: reply message frame(lower 32bit addr)
1940 * Context: none.
1941 *
1942 * The callback handler when using scsih_issue_tm.
1943 *
1944 * Return 1 meaning mf should be freed from _base_interrupt
1945 * 0 means the mf is freed from this function.
1946 */
1947static u8
1948_scsih_tm_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
1949{
1950 MPI2DefaultReply_t *mpi_reply;
1951
1952 if (ioc->tm_cmds.status == MPT3_CMD_NOT_USED)
1953 return 1;
1954 if (ioc->tm_cmds.smid != smid)
1955 return 1;
1956 mpt3sas_base_flush_reply_queues(ioc);
1957 ioc->tm_cmds.status |= MPT3_CMD_COMPLETE;
1958 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
1959 if (mpi_reply) {
1960 memcpy(ioc->tm_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
1961 ioc->tm_cmds.status |= MPT3_CMD_REPLY_VALID;
1962 }
1963 ioc->tm_cmds.status &= ~MPT3_CMD_PENDING;
1964 complete(&ioc->tm_cmds.done);
1965 return 1;
1966}
1967
1968/**
1969 * mpt3sas_scsih_set_tm_flag - set per target tm_busy
1970 * @ioc: per adapter object
1971 * @handle: device handle
1972 *
1973 * During taskmangement request, we need to freeze the device queue.
1974 */
1975void
1976mpt3sas_scsih_set_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle)
1977{
1978 struct MPT3SAS_DEVICE *sas_device_priv_data;
1979 struct scsi_device *sdev;
1980 u8 skip = 0;
1981
1982 shost_for_each_device(sdev, ioc->shost) {
1983 if (skip)
1984 continue;
1985 sas_device_priv_data = sdev->hostdata;
1986 if (!sas_device_priv_data)
1987 continue;
1988 if (sas_device_priv_data->sas_target->handle == handle) {
1989 sas_device_priv_data->sas_target->tm_busy = 1;
1990 skip = 1;
1991 ioc->ignore_loginfos = 1;
1992 }
1993 }
1994}
1995
1996/**
1997 * mpt3sas_scsih_clear_tm_flag - clear per target tm_busy
1998 * @ioc: per adapter object
1999 * @handle: device handle
2000 *
2001 * During taskmangement request, we need to freeze the device queue.
2002 */
2003void
2004mpt3sas_scsih_clear_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle)
2005{
2006 struct MPT3SAS_DEVICE *sas_device_priv_data;
2007 struct scsi_device *sdev;
2008 u8 skip = 0;
2009
2010 shost_for_each_device(sdev, ioc->shost) {
2011 if (skip)
2012 continue;
2013 sas_device_priv_data = sdev->hostdata;
2014 if (!sas_device_priv_data)
2015 continue;
2016 if (sas_device_priv_data->sas_target->handle == handle) {
2017 sas_device_priv_data->sas_target->tm_busy = 0;
2018 skip = 1;
2019 ioc->ignore_loginfos = 0;
2020 }
2021 }
2022}
2023
2024/**
2025 * mpt3sas_scsih_issue_tm - main routine for sending tm requests
2026 * @ioc: per adapter struct
2027 * @device_handle: device handle
2028 * @channel: the channel assigned by the OS
2029 * @id: the id assigned by the OS
2030 * @lun: lun number
2031 * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
2032 * @smid_task: smid assigned to the task
2033 * @timeout: timeout in seconds
f92363d1
SR		 2034 * @m_type: TM_MUTEX_ON or TM_MUTEX_OFF
2035 * Context: user
2036 *
2037 * A generic API for sending task management requests to firmware.
2038 *
2039 * The callback index is set inside `ioc->tm_cb_idx`.
2040 *
2041 * Return SUCCESS or FAILED.
2042 */
2043int
2044mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, uint channel,
2045 uint id, uint lun, u8 type, u16 smid_task, ulong timeout,
c62e46de 2046 enum mutex_type m_type)
f92363d1
SR		 2047{
2048 Mpi2SCSITaskManagementRequest_t *mpi_request;
2049 Mpi2SCSITaskManagementReply_t *mpi_reply;
2050 u16 smid = 0;
2051 u32 ioc_state;
2052 unsigned long timeleft;
2053 struct scsiio_tracker *scsi_lookup = NULL;
2054 int rc;
2055
2056 if (m_type == TM_MUTEX_ON)
2057 mutex_lock(&ioc->tm_cmds.mutex);
2058 if (ioc->tm_cmds.status != MPT3_CMD_NOT_USED) {
2059 pr_info(MPT3SAS_FMT "%s: tm_cmd busy!!!\n",
2060 __func__, ioc->name);
2061 rc = FAILED;
2062 goto err_out;
2063 }
2064
2065 if (ioc->shost_recovery || ioc->remove_host ||
2066 ioc->pci_error_recovery) {
2067 pr_info(MPT3SAS_FMT "%s: host reset in progress!\n",
2068 __func__, ioc->name);
2069 rc = FAILED;
2070 goto err_out;
2071 }
2072
2073 ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
2074 if (ioc_state & MPI2_DOORBELL_USED) {
2075 dhsprintk(ioc, pr_info(MPT3SAS_FMT
2076 "unexpected doorbell active!\n", ioc->name));
2077 rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2078 FORCE_BIG_HAMMER);
2079 rc = (!rc) ? SUCCESS : FAILED;
2080 goto err_out;
2081 }
2082
2083 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
2084 mpt3sas_base_fault_info(ioc, ioc_state &
2085 MPI2_DOORBELL_DATA_MASK);
2086 rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2087 FORCE_BIG_HAMMER);
2088 rc = (!rc) ? SUCCESS : FAILED;
2089 goto err_out;
2090 }
2091
2092 smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_cb_idx);
2093 if (!smid) {
2094 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
2095 ioc->name, __func__);
2096 rc = FAILED;
2097 goto err_out;
2098 }
2099
2100 if (type == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
2101 scsi_lookup = &ioc->scsi_lookup[smid_task - 1];
2102
2103 dtmprintk(ioc, pr_info(MPT3SAS_FMT
2104 "sending tm: handle(0x%04x), task_type(0x%02x), smid(%d)\n",
2105 ioc->name, handle, type, smid_task));
2106 ioc->tm_cmds.status = MPT3_CMD_PENDING;
2107 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
2108 ioc->tm_cmds.smid = smid;
2109 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
2110 memset(ioc->tm_cmds.reply, 0, sizeof(Mpi2SCSITaskManagementReply_t));
2111 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
2112 mpi_request->DevHandle = cpu_to_le16(handle);
2113 mpi_request->TaskType = type;
2114 mpi_request->TaskMID = cpu_to_le16(smid_task);
2115 int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN);
2116 mpt3sas_scsih_set_tm_flag(ioc, handle);
2117 init_completion(&ioc->tm_cmds.done);
2118 mpt3sas_base_put_smid_hi_priority(ioc, smid);
2119 timeleft = wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
2120 if (!(ioc->tm_cmds.status & MPT3_CMD_COMPLETE)) {
2121 pr_err(MPT3SAS_FMT "%s: timeout\n",
2122 ioc->name, __func__);
2123 _debug_dump_mf(mpi_request,
2124 sizeof(Mpi2SCSITaskManagementRequest_t)/4);
2125 if (!(ioc->tm_cmds.status & MPT3_CMD_RESET)) {
2126 rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2127 FORCE_BIG_HAMMER);
2128 rc = (!rc) ? SUCCESS : FAILED;
2129 ioc->tm_cmds.status = MPT3_CMD_NOT_USED;
2130 mpt3sas_scsih_clear_tm_flag(ioc, handle);
2131 goto err_out;
2132 }
2133 }
2134
2135 if (ioc->tm_cmds.status & MPT3_CMD_REPLY_VALID) {
2136 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
2137 mpi_reply = ioc->tm_cmds.reply;
2138 dtmprintk(ioc, pr_info(MPT3SAS_FMT "complete tm: " \
2139 "ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n",
2140 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
2141 le32_to_cpu(mpi_reply->IOCLogInfo),
2142 le32_to_cpu(mpi_reply->TerminationCount)));
2143 if (ioc->logging_level & MPT_DEBUG_TM) {
2144 _scsih_response_code(ioc, mpi_reply->ResponseCode);
2145 if (mpi_reply->IOCStatus)
2146 _debug_dump_mf(mpi_request,
2147 sizeof(Mpi2SCSITaskManagementRequest_t)/4);
2148 }
2149 }
2150
2151 switch (type) {
2152 case MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
2153 rc = SUCCESS;
2154 if (scsi_lookup->scmd == NULL)
2155 break;
2156 rc = FAILED;
2157 break;
2158
2159 case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
2160 if (_scsih_scsi_lookup_find_by_target(ioc, id, channel))
2161 rc = FAILED;
2162 else
2163 rc = SUCCESS;
2164 break;
2165 case MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET:
2166 case MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET:
2167 if (_scsih_scsi_lookup_find_by_lun(ioc, id, lun, channel))
2168 rc = FAILED;
2169 else
2170 rc = SUCCESS;
2171 break;
2172 case MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK:
2173 rc = SUCCESS;
2174 break;
2175 default:
2176 rc = FAILED;
2177 break;
2178 }
2179
2180 mpt3sas_scsih_clear_tm_flag(ioc, handle);
2181 ioc->tm_cmds.status = MPT3_CMD_NOT_USED;
2182 if (m_type == TM_MUTEX_ON)
2183 mutex_unlock(&ioc->tm_cmds.mutex);
2184
2185 return rc;
2186
2187 err_out:
2188 if (m_type == TM_MUTEX_ON)
2189 mutex_unlock(&ioc->tm_cmds.mutex);
2190 return rc;
2191}
2192
2193/**
2194 * _scsih_tm_display_info - displays info about the device
2195 * @ioc: per adapter struct
2196 * @scmd: pointer to scsi command object
2197 *
2198 * Called by task management callback handlers.
2199 */
2200static void
2201_scsih_tm_display_info(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd)
2202{
2203 struct scsi_target *starget = scmd->device->sdev_target;
2204 struct MPT3SAS_TARGET *priv_target = starget->hostdata;
2205 struct _sas_device *sas_device = NULL;
2206 unsigned long flags;
2207 char *device_str = NULL;
2208
2209 if (!priv_target)
2210 return;
2211 device_str = "volume";
2212
2213 scsi_print_command(scmd);
2214 if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
2215 starget_printk(KERN_INFO, starget,
2216 "%s handle(0x%04x), %s wwid(0x%016llx)\n",
2217 device_str, priv_target->handle,
2218 device_str, (unsigned long long)priv_target->sas_address);
2219 } else {
2220 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2221 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
2222 priv_target->sas_address);
2223 if (sas_device) {
2224 if (priv_target->flags &
2225 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2226 starget_printk(KERN_INFO, starget,
2227 "volume handle(0x%04x), "
2228 "volume wwid(0x%016llx)\n",
2229 sas_device->volume_handle,
2230 (unsigned long long)sas_device->volume_wwid);
2231 }
2232 starget_printk(KERN_INFO, starget,
2233 "handle(0x%04x), sas_address(0x%016llx), phy(%d)\n",
2234 sas_device->handle,
2235 (unsigned long long)sas_device->sas_address,
2236 sas_device->phy);
2237 starget_printk(KERN_INFO, starget,
2238 "enclosure_logical_id(0x%016llx), slot(%d)\n",
2239 (unsigned long long)sas_device->enclosure_logical_id,
2240 sas_device->slot);
2241 }
2242 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2243 }
2244}
2245
2246/**
2247 * _scsih_abort - eh threads main abort routine
2248 * @scmd: pointer to scsi command object
2249 *
2250 * Returns SUCCESS if command aborted else FAILED
2251 */
2252static int
2253_scsih_abort(struct scsi_cmnd *scmd)
2254{
2255 struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2256 struct MPT3SAS_DEVICE *sas_device_priv_data;
2257 u16 smid;
2258 u16 handle;
2259 int r;
2260
2261 sdev_printk(KERN_INFO, scmd->device,
2262 "attempting task abort! scmd(%p)\n", scmd);
2263 _scsih_tm_display_info(ioc, scmd);
2264
2265 sas_device_priv_data = scmd->device->hostdata;
2266 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2267 sdev_printk(KERN_INFO, scmd->device,
2268 "device been deleted! scmd(%p)\n", scmd);
2269 scmd->result = DID_NO_CONNECT << 16;
2270 scmd->scsi_done(scmd);
2271 r = SUCCESS;
2272 goto out;
2273 }
2274
2275 /* search for the command */
2276 smid = _scsih_scsi_lookup_find_by_scmd(ioc, scmd);
2277 if (!smid) {
2278 scmd->result = DID_RESET << 16;
2279 r = SUCCESS;
2280 goto out;
2281 }
2282
2283 /* for hidden raid components and volumes this is not supported */
2284 if (sas_device_priv_data->sas_target->flags &
2285 MPT_TARGET_FLAGS_RAID_COMPONENT ||
2286 sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_VOLUME) {
2287 scmd->result = DID_RESET << 16;
2288 r = FAILED;
2289 goto out;
2290 }
2291
2292 mpt3sas_halt_firmware(ioc);
2293
2294 handle = sas_device_priv_data->sas_target->handle;
2295 r = mpt3sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2296 scmd->device->id, scmd->device->lun,
c62e46de 2297 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30, TM_MUTEX_ON);
f92363d1
SR		 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,
c62e46de 2356 MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 30, TM_MUTEX_ON);
f92363d1
SR		 2357
2358 out:
2359 sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n",
2360 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2361 return r;
2362}
2363
2364/**
2365 * _scsih_target_reset - eh threads main target reset routine
2366 * @scmd: pointer to scsi command object
2367 *
2368 * Returns SUCCESS if command aborted else FAILED
2369 */
2370static int
2371_scsih_target_reset(struct scsi_cmnd *scmd)
2372{
2373 struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2374 struct MPT3SAS_DEVICE *sas_device_priv_data;
2375 struct _sas_device *sas_device;
2376 unsigned long flags;
2377 u16 handle;
2378 int r;
2379 struct scsi_target *starget = scmd->device->sdev_target;
2380
2381 starget_printk(KERN_INFO, starget, "attempting target reset! scmd(%p)\n",
2382 scmd);
2383 _scsih_tm_display_info(ioc, scmd);
2384
2385 sas_device_priv_data = scmd->device->hostdata;
2386 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2387 starget_printk(KERN_INFO, starget, "target been deleted! scmd(%p)\n",
2388 scmd);
2389 scmd->result = DID_NO_CONNECT << 16;
2390 scmd->scsi_done(scmd);
2391 r = SUCCESS;
2392 goto out;
2393 }
2394
2395 /* for hidden raid components obtain the volume_handle */
2396 handle = 0;
2397 if (sas_device_priv_data->sas_target->flags &
2398 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2399 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2400 sas_device = _scsih_sas_device_find_by_handle(ioc,
2401 sas_device_priv_data->sas_target->handle);
2402 if (sas_device)
2403 handle = sas_device->volume_handle;
2404 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2405 } else
2406 handle = sas_device_priv_data->sas_target->handle;
2407
2408 if (!handle) {
2409 scmd->result = DID_RESET << 16;
2410 r = FAILED;
2411 goto out;
2412 }
2413
2414 r = mpt3sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2415 scmd->device->id, 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
c62e46de 2416 30, TM_MUTEX_ON);
f92363d1
SR		 2417
2418 out:
2419 starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n",
2420 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2421 return r;
2422}
2423
2424
2425/**
2426 * _scsih_host_reset - eh threads main host reset routine
2427 * @scmd: pointer to scsi command object
2428 *
2429 * Returns SUCCESS if command aborted else FAILED
2430 */
2431static int
2432_scsih_host_reset(struct scsi_cmnd *scmd)
2433{
2434 struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2435 int r, retval;
2436
2437 pr_info(MPT3SAS_FMT "attempting host reset! scmd(%p)\n",
2438 ioc->name, scmd);
2439 scsi_print_command(scmd);
2440
2441 retval = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2442 FORCE_BIG_HAMMER);
2443 r = (retval < 0) ? FAILED : SUCCESS;
2444 pr_info(MPT3SAS_FMT "host reset: %s scmd(%p)\n",
2445 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2446
2447 return r;
2448}
2449
2450/**
2451 * _scsih_fw_event_add - insert and queue up fw_event
2452 * @ioc: per adapter object
2453 * @fw_event: object describing the event
2454 * Context: This function will acquire ioc->fw_event_lock.
2455 *
2456 * This adds the firmware event object into link list, then queues it up to
2457 * be processed from user context.
2458 *
2459 * Return nothing.
2460 */
2461static void
2462_scsih_fw_event_add(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
2463{
2464 unsigned long flags;
2465
2466 if (ioc->firmware_event_thread == NULL)
2467 return;
2468
2469 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2470 INIT_LIST_HEAD(&fw_event->list);
2471 list_add_tail(&fw_event->list, &ioc->fw_event_list);
2472 INIT_WORK(&fw_event->work, _firmware_event_work);
2473 queue_work(ioc->firmware_event_thread, &fw_event->work);
2474 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2475}
2476
2477/**
2478 * _scsih_fw_event_free - delete fw_event
2479 * @ioc: per adapter object
2480 * @fw_event: object describing the event
2481 * Context: This function will acquire ioc->fw_event_lock.
2482 *
2483 * This removes firmware event object from link list, frees associated memory.
2484 *
2485 * Return nothing.
2486 */
2487static void
2488_scsih_fw_event_free(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work
2489 *fw_event)
2490{
2491 unsigned long flags;
2492
2493 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2494 list_del(&fw_event->list);
f92363d1
SR		 2495 kfree(fw_event);
2496 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2497}
2498
2499
2500 /**
2501 * mpt3sas_send_trigger_data_event - send event for processing trigger data
2502 * @ioc: per adapter object
2503 * @event_data: trigger event data
2504 *
2505 * Return nothing.
2506 */
2507void
2508mpt3sas_send_trigger_data_event(struct MPT3SAS_ADAPTER *ioc,
2509 struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data)
2510{
2511 struct fw_event_work *fw_event;
2512
2513 if (ioc->is_driver_loading)
2514 return;
35b62362
JL		 2515 fw_event = kzalloc(sizeof(*fw_event) + sizeof(*event_data),
2516 GFP_ATOMIC);
f92363d1
SR		 2517 if (!fw_event)
2518 return;
f92363d1
SR		 2519 fw_event->event = MPT3SAS_PROCESS_TRIGGER_DIAG;
2520 fw_event->ioc = ioc;
2521 memcpy(fw_event->event_data, event_data, sizeof(*event_data));
2522 _scsih_fw_event_add(ioc, fw_event);
2523}
2524
2525/**
2526 * _scsih_error_recovery_delete_devices - remove devices not responding
2527 * @ioc: per adapter object
2528 *
2529 * Return nothing.
2530 */
2531static void
2532_scsih_error_recovery_delete_devices(struct MPT3SAS_ADAPTER *ioc)
2533{
2534 struct fw_event_work *fw_event;
2535
2536 if (ioc->is_driver_loading)
2537 return;
2538 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
2539 if (!fw_event)
2540 return;
2541 fw_event->event = MPT3SAS_REMOVE_UNRESPONDING_DEVICES;
2542 fw_event->ioc = ioc;
2543 _scsih_fw_event_add(ioc, fw_event);
2544}
2545
2546/**
2547 * mpt3sas_port_enable_complete - port enable completed (fake event)
2548 * @ioc: per adapter object
2549 *
2550 * Return nothing.
2551 */
2552void
2553mpt3sas_port_enable_complete(struct MPT3SAS_ADAPTER *ioc)
2554{
2555 struct fw_event_work *fw_event;
2556
2557 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
2558 if (!fw_event)
2559 return;
2560 fw_event->event = MPT3SAS_PORT_ENABLE_COMPLETE;
2561 fw_event->ioc = ioc;
2562 _scsih_fw_event_add(ioc, fw_event);
2563}
2564
2565/**
2566 * _scsih_fw_event_cleanup_queue - cleanup event queue
2567 * @ioc: per adapter object
2568 *
2569 * Walk the firmware event queue, either killing timers, or waiting
2570 * for outstanding events to complete
2571 *
2572 * Return nothing.
2573 */
2574static void
2575_scsih_fw_event_cleanup_queue(struct MPT3SAS_ADAPTER *ioc)
2576{
2577 struct fw_event_work *fw_event, *next;
2578
2579 if (list_empty(&ioc->fw_event_list) ||
2580 !ioc->firmware_event_thread || in_interrupt())
2581 return;
2582
2583 list_for_each_entry_safe(fw_event, next, &ioc->fw_event_list, list) {
2584 if (cancel_delayed_work(&fw_event->delayed_work)) {
2585 _scsih_fw_event_free(ioc, fw_event);
2586 continue;
2587 }
2588 fw_event->cancel_pending_work = 1;
2589 }
2590}
2591
2592/**
2593 * _scsih_ublock_io_all_device - unblock every device
2594 * @ioc: per adapter object
2595 *
2596 * change the device state from block to running
2597 */
2598static void
2599_scsih_ublock_io_all_device(struct MPT3SAS_ADAPTER *ioc)
2600{
2601 struct MPT3SAS_DEVICE *sas_device_priv_data;
2602 struct scsi_device *sdev;
2603
2604 shost_for_each_device(sdev, ioc->shost) {
2605 sas_device_priv_data = sdev->hostdata;
2606 if (!sas_device_priv_data)
2607 continue;
2608 if (!sas_device_priv_data->block)
2609 continue;
2610
2611 sas_device_priv_data->block = 0;
2612 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2613 "device_running, handle(0x%04x)\n",
2614 sas_device_priv_data->sas_target->handle));
2615 scsi_internal_device_unblock(sdev, SDEV_RUNNING);
2616 }
2617}
2618
2619
2620/**
2621 * _scsih_ublock_io_device - prepare device to be deleted
2622 * @ioc: per adapter object
2623 * @sas_addr: sas address
2624 *
2625 * unblock then put device in offline state
2626 */
2627static void
2628_scsih_ublock_io_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address)
2629{
2630 struct MPT3SAS_DEVICE *sas_device_priv_data;
2631 struct scsi_device *sdev;
2632
2633 shost_for_each_device(sdev, ioc->shost) {
2634 sas_device_priv_data = sdev->hostdata;
2635 if (!sas_device_priv_data)
2636 continue;
2637 if (sas_device_priv_data->sas_target->sas_address
2638 != sas_address)
2639 continue;
2640 if (sas_device_priv_data->block) {
2641 sas_device_priv_data->block = 0;
2642 scsi_internal_device_unblock(sdev, SDEV_RUNNING);
2643 }
2644 }
2645}
2646
2647/**
2648 * _scsih_block_io_all_device - set the device state to SDEV_BLOCK
2649 * @ioc: per adapter object
2650 * @handle: device handle
2651 *
2652 * During device pull we need to appropiately set the sdev state.
2653 */
2654static void
2655_scsih_block_io_all_device(struct MPT3SAS_ADAPTER *ioc)
2656{
2657 struct MPT3SAS_DEVICE *sas_device_priv_data;
2658 struct scsi_device *sdev;
2659
2660 shost_for_each_device(sdev, ioc->shost) {
2661 sas_device_priv_data = sdev->hostdata;
2662 if (!sas_device_priv_data)
2663 continue;
2664 if (sas_device_priv_data->block)
2665 continue;
2666 sas_device_priv_data->block = 1;
2667 scsi_internal_device_block(sdev);
2668 sdev_printk(KERN_INFO, sdev, "device_blocked, handle(0x%04x)\n",
2669 sas_device_priv_data->sas_target->handle);
2670 }
2671}
2672
2673/**
2674 * _scsih_block_io_device - set the device state to SDEV_BLOCK
2675 * @ioc: per adapter object
2676 * @handle: device handle
2677 *
2678 * During device pull we need to appropiately set the sdev state.
2679 */
2680static void
2681_scsih_block_io_device(struct MPT3SAS_ADAPTER *ioc, u16 handle)
2682{
2683 struct MPT3SAS_DEVICE *sas_device_priv_data;
2684 struct scsi_device *sdev;
2685
2686 shost_for_each_device(sdev, ioc->shost) {
2687 sas_device_priv_data = sdev->hostdata;
2688 if (!sas_device_priv_data)
2689 continue;
2690 if (sas_device_priv_data->sas_target->handle != handle)
2691 continue;
2692 if (sas_device_priv_data->block)
2693 continue;
2694 sas_device_priv_data->block = 1;
2695 scsi_internal_device_block(sdev);
2696 sdev_printk(KERN_INFO, sdev,
2697 "device_blocked, handle(0x%04x)\n", handle);
2698 }
2699}
2700
2701/**
2702 * _scsih_block_io_to_children_attached_to_ex
2703 * @ioc: per adapter object
2704 * @sas_expander: the sas_device object
2705 *
2706 * This routine set sdev state to SDEV_BLOCK for all devices
2707 * attached to this expander. This function called when expander is
2708 * pulled.
2709 */
2710static void
2711_scsih_block_io_to_children_attached_to_ex(struct MPT3SAS_ADAPTER *ioc,
2712 struct _sas_node *sas_expander)
2713{
2714 struct _sas_port *mpt3sas_port;
2715 struct _sas_device *sas_device;
2716 struct _sas_node *expander_sibling;
2717 unsigned long flags;
2718
2719 if (!sas_expander)
2720 return;
2721
2722 list_for_each_entry(mpt3sas_port,
2723 &sas_expander->sas_port_list, port_list) {
2724 if (mpt3sas_port->remote_identify.device_type ==
2725 SAS_END_DEVICE) {
2726 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2727 sas_device =
2728 mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
2729 mpt3sas_port->remote_identify.sas_address);
2730 if (sas_device)
2731 set_bit(sas_device->handle,
2732 ioc->blocking_handles);
2733 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2734 }
2735 }
2736
2737 list_for_each_entry(mpt3sas_port,
2738 &sas_expander->sas_port_list, port_list) {
2739
2740 if (mpt3sas_port->remote_identify.device_type ==
2741 SAS_EDGE_EXPANDER_DEVICE ||
2742 mpt3sas_port->remote_identify.device_type ==
2743 SAS_FANOUT_EXPANDER_DEVICE) {
2744 expander_sibling =
2745 mpt3sas_scsih_expander_find_by_sas_address(
2746 ioc, mpt3sas_port->remote_identify.sas_address);
2747 _scsih_block_io_to_children_attached_to_ex(ioc,
2748 expander_sibling);
2749 }
2750 }
2751}
2752
2753/**
2754 * _scsih_block_io_to_children_attached_directly
2755 * @ioc: per adapter object
2756 * @event_data: topology change event data
2757 *
2758 * This routine set sdev state to SDEV_BLOCK for all devices
2759 * direct attached during device pull.
2760 */
2761static void
2762_scsih_block_io_to_children_attached_directly(struct MPT3SAS_ADAPTER *ioc,
2763 Mpi2EventDataSasTopologyChangeList_t *event_data)
2764{
2765 int i;
2766 u16 handle;
2767 u16 reason_code;
f92363d1
SR		 2768
2769 for (i = 0; i < event_data->NumEntries; i++) {
2770 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
2771 if (!handle)
2772 continue;
f92363d1
SR		 2773 reason_code = event_data->PHY[i].PhyStatus &
2774 MPI2_EVENT_SAS_TOPO_RC_MASK;
2775 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING)
2776 _scsih_block_io_device(ioc, handle);
2777 }
2778}
2779
2780/**
2781 * _scsih_tm_tr_send - send task management request
2782 * @ioc: per adapter object
2783 * @handle: device handle
2784 * Context: interrupt time.
2785 *
2786 * This code is to initiate the device removal handshake protocol
2787 * with controller firmware. This function will issue target reset
2788 * using high priority request queue. It will send a sas iounit
2789 * control request (MPI2_SAS_OP_REMOVE_DEVICE) from this completion.
2790 *
2791 * This is designed to send muliple task management request at the same
2792 * time to the fifo. If the fifo is full, we will append the request,
2793 * and process it in a future completion.
2794 */
2795static void
2796_scsih_tm_tr_send(struct MPT3SAS_ADAPTER *ioc, u16 handle)
2797{
2798 Mpi2SCSITaskManagementRequest_t *mpi_request;
2799 u16 smid;
2800 struct _sas_device *sas_device;
2801 struct MPT3SAS_TARGET *sas_target_priv_data = NULL;
2802 u64 sas_address = 0;
2803 unsigned long flags;
2804 struct _tr_list *delayed_tr;
2805 u32 ioc_state;
2806
2807 if (ioc->remove_host) {
2808 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2809 "%s: host has been removed: handle(0x%04x)\n",
2810 __func__, ioc->name, handle));
2811 return;
2812 } else if (ioc->pci_error_recovery) {
2813 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2814 "%s: host in pci error recovery: handle(0x%04x)\n",
2815 __func__, ioc->name,
2816 handle));
2817 return;
2818 }
2819 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
2820 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
2821 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2822 "%s: host is not operational: handle(0x%04x)\n",
2823 __func__, ioc->name,
2824 handle));
2825 return;
2826 }
2827
2828 /* if PD, then return */
2829 if (test_bit(handle, ioc->pd_handles))
2830 return;
2831
2832 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2833 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
2834 if (sas_device && sas_device->starget &&
2835 sas_device->starget->hostdata) {
2836 sas_target_priv_data = sas_device->starget->hostdata;
2837 sas_target_priv_data->deleted = 1;
2838 sas_address = sas_device->sas_address;
2839 }
2840 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2841
2842 if (sas_target_priv_data) {
2843 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2844 "setting delete flag: handle(0x%04x), sas_addr(0x%016llx)\n",
2845 ioc->name, handle,
2846 (unsigned long long)sas_address));
2847 _scsih_ublock_io_device(ioc, sas_address);
2848 sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE;
2849 }
2850
2851 smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_tr_cb_idx);
2852 if (!smid) {
2853 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
2854 if (!delayed_tr)
2855 return;
2856 INIT_LIST_HEAD(&delayed_tr->list);
2857 delayed_tr->handle = handle;
2858 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
2859 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2860 "DELAYED:tr:handle(0x%04x), (open)\n",
2861 ioc->name, handle));
2862 return;
2863 }
2864
2865 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2866 "tr_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
2867 ioc->name, handle, smid,
2868 ioc->tm_tr_cb_idx));
2869 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
2870 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
2871 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
2872 mpi_request->DevHandle = cpu_to_le16(handle);
2873 mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
2874 mpt3sas_base_put_smid_hi_priority(ioc, smid);
2875 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_DEVICE_REMOVAL);
2876}
2877
2878/**
2879 * _scsih_tm_tr_complete -
2880 * @ioc: per adapter object
2881 * @smid: system request message index
2882 * @msix_index: MSIX table index supplied by the OS
2883 * @reply: reply message frame(lower 32bit addr)
2884 * Context: interrupt time.
2885 *
2886 * This is the target reset completion routine.
2887 * This code is part of the code to initiate the device removal
2888 * handshake protocol with controller firmware.
2889 * It will send a sas iounit control request (MPI2_SAS_OP_REMOVE_DEVICE)
2890 *
2891 * Return 1 meaning mf should be freed from _base_interrupt
2892 * 0 means the mf is freed from this function.
2893 */
2894static u8
2895_scsih_tm_tr_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
2896 u32 reply)
2897{
2898 u16 handle;
2899 Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
2900 Mpi2SCSITaskManagementReply_t *mpi_reply =
2901 mpt3sas_base_get_reply_virt_addr(ioc, reply);
2902 Mpi2SasIoUnitControlRequest_t *mpi_request;
2903 u16 smid_sas_ctrl;
2904 u32 ioc_state;
2905
2906 if (ioc->remove_host) {
2907 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2908 "%s: host has been removed\n", __func__, ioc->name));
2909 return 1;
2910 } else if (ioc->pci_error_recovery) {
2911 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2912 "%s: host in pci error recovery\n", __func__,
2913 ioc->name));
2914 return 1;
2915 }
2916 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
2917 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
2918 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2919 "%s: host is not operational\n", __func__, ioc->name));
2920 return 1;
2921 }
2922 if (unlikely(!mpi_reply)) {
2923 pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n",
2924 ioc->name, __FILE__, __LINE__, __func__);
2925 return 1;
2926 }
2927 mpi_request_tm = mpt3sas_base_get_msg_frame(ioc, smid);
2928 handle = le16_to_cpu(mpi_request_tm->DevHandle);
2929 if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
2930 dewtprintk(ioc, pr_err(MPT3SAS_FMT
2931 "spurious interrupt: handle(0x%04x:0x%04x), smid(%d)!!!\n",
2932 ioc->name, handle,
2933 le16_to_cpu(mpi_reply->DevHandle), smid));
2934 return 0;
2935 }
2936
2937 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
2938 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2939 "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
2940 "loginfo(0x%08x), completed(%d)\n", ioc->name,
2941 handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
2942 le32_to_cpu(mpi_reply->IOCLogInfo),
2943 le32_to_cpu(mpi_reply->TerminationCount)));
2944
2945 smid_sas_ctrl = mpt3sas_base_get_smid(ioc, ioc->tm_sas_control_cb_idx);
2946 if (!smid_sas_ctrl) {
2947 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
2948 ioc->name, __func__);
2949 return 1;
2950 }
2951
2952 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2953 "sc_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
2954 ioc->name, handle, smid_sas_ctrl,
2955 ioc->tm_sas_control_cb_idx));
2956 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid_sas_ctrl);
2957 memset(mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
2958 mpi_request->Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
2959 mpi_request->Operation = MPI2_SAS_OP_REMOVE_DEVICE;
2960 mpi_request->DevHandle = mpi_request_tm->DevHandle;
2961 mpt3sas_base_put_smid_default(ioc, smid_sas_ctrl);
2962
2963 return _scsih_check_for_pending_tm(ioc, smid);
2964}
2965
2966
2967/**
2968 * _scsih_sas_control_complete - completion routine
2969 * @ioc: per adapter object
2970 * @smid: system request message index
2971 * @msix_index: MSIX table index supplied by the OS
2972 * @reply: reply message frame(lower 32bit addr)
2973 * Context: interrupt time.
2974 *
2975 * This is the sas iounit control completion routine.
2976 * This code is part of the code to initiate the device removal
2977 * handshake protocol with controller firmware.
2978 *
2979 * Return 1 meaning mf should be freed from _base_interrupt
2980 * 0 means the mf is freed from this function.
2981 */
2982static u8
2983_scsih_sas_control_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid,
2984 u8 msix_index, u32 reply)
2985{
2986 Mpi2SasIoUnitControlReply_t *mpi_reply =
2987 mpt3sas_base_get_reply_virt_addr(ioc, reply);
2988
2989 if (likely(mpi_reply)) {
2990 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2991 "sc_complete:handle(0x%04x), (open) "
2992 "smid(%d), ioc_status(0x%04x), loginfo(0x%08x)\n",
2993 ioc->name, le16_to_cpu(mpi_reply->DevHandle), smid,
2994 le16_to_cpu(mpi_reply->IOCStatus),
2995 le32_to_cpu(mpi_reply->IOCLogInfo)));
2996 } else {
2997 pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n",
2998 ioc->name, __FILE__, __LINE__, __func__);
2999 }
3000 return 1;
3001}
3002
3003/**
3004 * _scsih_tm_tr_volume_send - send target reset request for volumes
3005 * @ioc: per adapter object
3006 * @handle: device handle
3007 * Context: interrupt time.
3008 *
3009 * This is designed to send muliple task management request at the same
3010 * time to the fifo. If the fifo is full, we will append the request,
3011 * and process it in a future completion.
3012 */
3013static void
3014_scsih_tm_tr_volume_send(struct MPT3SAS_ADAPTER *ioc, u16 handle)
3015{
3016 Mpi2SCSITaskManagementRequest_t *mpi_request;
3017 u16 smid;
3018 struct _tr_list *delayed_tr;
3019
3020 if (ioc->shost_recovery || ioc->remove_host ||
3021 ioc->pci_error_recovery) {
3022 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3023 "%s: host reset in progress!\n",
3024 __func__, ioc->name));
3025 return;
3026 }
3027
3028 smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_tr_volume_cb_idx);
3029 if (!smid) {
3030 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
3031 if (!delayed_tr)
3032 return;
3033 INIT_LIST_HEAD(&delayed_tr->list);
3034 delayed_tr->handle = handle;
3035 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_volume_list);
3036 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3037 "DELAYED:tr:handle(0x%04x), (open)\n",
3038 ioc->name, handle));
3039 return;
3040 }
3041
3042 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3043 "tr_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
3044 ioc->name, handle, smid,
3045 ioc->tm_tr_volume_cb_idx));
3046 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
3047 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
3048 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
3049 mpi_request->DevHandle = cpu_to_le16(handle);
3050 mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
3051 mpt3sas_base_put_smid_hi_priority(ioc, smid);
3052}
3053
3054/**
3055 * _scsih_tm_volume_tr_complete - target reset completion
3056 * @ioc: per adapter object
3057 * @smid: system request message index
3058 * @msix_index: MSIX table index supplied by the OS
3059 * @reply: reply message frame(lower 32bit addr)
3060 * Context: interrupt time.
3061 *
3062 * Return 1 meaning mf should be freed from _base_interrupt
3063 * 0 means the mf is freed from this function.
3064 */
3065static u8
3066_scsih_tm_volume_tr_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid,
3067 u8 msix_index, u32 reply)
3068{
3069 u16 handle;
3070 Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
3071 Mpi2SCSITaskManagementReply_t *mpi_reply =
3072 mpt3sas_base_get_reply_virt_addr(ioc, reply);
3073
3074 if (ioc->shost_recovery || ioc->remove_host ||
3075 ioc->pci_error_recovery) {
3076 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3077 "%s: host reset in progress!\n",
3078 __func__, ioc->name));
3079 return 1;
3080 }
3081 if (unlikely(!mpi_reply)) {
3082 pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n",
3083 ioc->name, __FILE__, __LINE__, __func__);
3084 return 1;
3085 }
3086
3087 mpi_request_tm = mpt3sas_base_get_msg_frame(ioc, smid);
3088 handle = le16_to_cpu(mpi_request_tm->DevHandle);
3089 if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
3090 dewtprintk(ioc, pr_err(MPT3SAS_FMT
3091 "spurious interrupt: handle(0x%04x:0x%04x), smid(%d)!!!\n",
3092 ioc->name, handle,
3093 le16_to_cpu(mpi_reply->DevHandle), smid));
3094 return 0;
3095 }
3096
3097 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3098 "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
3099 "loginfo(0x%08x), completed(%d)\n", ioc->name,
3100 handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
3101 le32_to_cpu(mpi_reply->IOCLogInfo),
3102 le32_to_cpu(mpi_reply->TerminationCount)));
3103
3104 return _scsih_check_for_pending_tm(ioc, smid);
3105}
3106
3107
3108/**
3109 * _scsih_check_for_pending_tm - check for pending task management
3110 * @ioc: per adapter object
3111 * @smid: system request message index
3112 *
3113 * This will check delayed target reset list, and feed the
3114 * next reqeust.
3115 *
3116 * Return 1 meaning mf should be freed from _base_interrupt
3117 * 0 means the mf is freed from this function.
3118 */
3119static u8
3120_scsih_check_for_pending_tm(struct MPT3SAS_ADAPTER *ioc, u16 smid)
3121{
3122 struct _tr_list *delayed_tr;
3123
3124 if (!list_empty(&ioc->delayed_tr_volume_list)) {
3125 delayed_tr = list_entry(ioc->delayed_tr_volume_list.next,
3126 struct _tr_list, list);
3127 mpt3sas_base_free_smid(ioc, smid);
3128 _scsih_tm_tr_volume_send(ioc, delayed_tr->handle);
3129 list_del(&delayed_tr->list);
3130 kfree(delayed_tr);
3131 return 0;
3132 }
3133
3134 if (!list_empty(&ioc->delayed_tr_list)) {
3135 delayed_tr = list_entry(ioc->delayed_tr_list.next,
3136 struct _tr_list, list);
3137 mpt3sas_base_free_smid(ioc, smid);
3138 _scsih_tm_tr_send(ioc, delayed_tr->handle);
3139 list_del(&delayed_tr->list);
3140 kfree(delayed_tr);
3141 return 0;
3142 }
3143
3144 return 1;
3145}
3146
3147/**
3148 * _scsih_check_topo_delete_events - sanity check on topo events
3149 * @ioc: per adapter object
3150 * @event_data: the event data payload
3151 *
3152 * This routine added to better handle cable breaker.
3153 *
3154 * This handles the case where driver receives multiple expander
3155 * add and delete events in a single shot. When there is a delete event
3156 * the routine will void any pending add events waiting in the event queue.
3157 *
3158 * Return nothing.
3159 */
3160static void
3161_scsih_check_topo_delete_events(struct MPT3SAS_ADAPTER *ioc,
3162 Mpi2EventDataSasTopologyChangeList_t *event_data)
3163{
3164 struct fw_event_work *fw_event;
3165 Mpi2EventDataSasTopologyChangeList_t *local_event_data;
3166 u16 expander_handle;
3167 struct _sas_node *sas_expander;
3168 unsigned long flags;
3169 int i, reason_code;
3170 u16 handle;
3171
3172 for (i = 0 ; i < event_data->NumEntries; i++) {
3173 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
3174 if (!handle)
3175 continue;
3176 reason_code = event_data->PHY[i].PhyStatus &
3177 MPI2_EVENT_SAS_TOPO_RC_MASK;
3178 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING)
3179 _scsih_tm_tr_send(ioc, handle);
3180 }
3181
3182 expander_handle = le16_to_cpu(event_data->ExpanderDevHandle);
3183 if (expander_handle < ioc->sas_hba.num_phys) {
3184 _scsih_block_io_to_children_attached_directly(ioc, event_data);
3185 return;
3186 }
3187 if (event_data->ExpStatus ==
3188 MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING) {
3189 /* put expander attached devices into blocking state */
3190 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3191 sas_expander = mpt3sas_scsih_expander_find_by_handle(ioc,
3192 expander_handle);
3193 _scsih_block_io_to_children_attached_to_ex(ioc, sas_expander);
3194 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3195 do {
3196 handle = find_first_bit(ioc->blocking_handles,
3197 ioc->facts.MaxDevHandle);
3198 if (handle < ioc->facts.MaxDevHandle)
3199 _scsih_block_io_device(ioc, handle);
3200 } while (test_and_clear_bit(handle, ioc->blocking_handles));
3201 } else if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_RESPONDING)
3202 _scsih_block_io_to_children_attached_directly(ioc, event_data);
3203
3204 if (event_data->ExpStatus != MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
3205 return;
3206
3207 /* mark ignore flag for pending events */
3208 spin_lock_irqsave(&ioc->fw_event_lock, flags);
3209 list_for_each_entry(fw_event, &ioc->fw_event_list, list) {
3210 if (fw_event->event != MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
3211 fw_event->ignore)
3212 continue;
35b62362
JL		 3213 local_event_data = (Mpi2EventDataSasTopologyChangeList_t *)
3214 fw_event->event_data;
f92363d1
SR		 3215 if (local_event_data->ExpStatus ==
3216 MPI2_EVENT_SAS_TOPO_ES_ADDED ||
3217 local_event_data->ExpStatus ==
3218 MPI2_EVENT_SAS_TOPO_ES_RESPONDING) {
3219 if (le16_to_cpu(local_event_data->ExpanderDevHandle) ==
3220 expander_handle) {
3221 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3222 "setting ignoring flag\n", ioc->name));
3223 fw_event->ignore = 1;
3224 }
3225 }
3226 }
3227 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
3228}
3229
3230/**
3231 * _scsih_set_volume_delete_flag - setting volume delete flag
3232 * @ioc: per adapter object
3233 * @handle: device handle
3234 *
3235 * This returns nothing.
3236 */
3237static void
3238_scsih_set_volume_delete_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle)
3239{
3240 struct _raid_device *raid_device;
3241 struct MPT3SAS_TARGET *sas_target_priv_data;
3242 unsigned long flags;
3243
3244 spin_lock_irqsave(&ioc->raid_device_lock, flags);
3245 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
3246 if (raid_device && raid_device->starget &&
3247 raid_device->starget->hostdata) {
3248 sas_target_priv_data =
3249 raid_device->starget->hostdata;
3250 sas_target_priv_data->deleted = 1;
3251 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3252 "setting delete flag: handle(0x%04x), "
3253 "wwid(0x%016llx)\n", ioc->name, handle,
3254 (unsigned long long) raid_device->wwid));
3255 }
3256 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
3257}
3258
3259/**
3260 * _scsih_set_volume_handle_for_tr - set handle for target reset to volume
3261 * @handle: input handle
3262 * @a: handle for volume a
3263 * @b: handle for volume b
3264 *
3265 * IR firmware only supports two raid volumes. The purpose of this
3266 * routine is to set the volume handle in either a or b. When the given
3267 * input handle is non-zero, or when a and b have not been set before.
3268 */
3269static void
3270_scsih_set_volume_handle_for_tr(u16 handle, u16 *a, u16 *b)
3271{
3272 if (!handle || handle == *a || handle == *b)
3273 return;
3274 if (!*a)
3275 *a = handle;
3276 else if (!*b)
3277 *b = handle;
3278}
3279
3280/**
3281 * _scsih_check_ir_config_unhide_events - check for UNHIDE events
3282 * @ioc: per adapter object
3283 * @event_data: the event data payload
3284 * Context: interrupt time.
3285 *
3286 * This routine will send target reset to volume, followed by target
3287 * resets to the PDs. This is called when a PD has been removed, or
3288 * volume has been deleted or removed. When the target reset is sent
3289 * to volume, the PD target resets need to be queued to start upon
3290 * completion of the volume target reset.
3291 *
3292 * Return nothing.
3293 */
3294static void
3295_scsih_check_ir_config_unhide_events(struct MPT3SAS_ADAPTER *ioc,
3296 Mpi2EventDataIrConfigChangeList_t *event_data)
3297{
3298 Mpi2EventIrConfigElement_t *element;
3299 int i;
3300 u16 handle, volume_handle, a, b;
3301 struct _tr_list *delayed_tr;
3302
3303 a = 0;
3304 b = 0;
3305
3306 /* Volume Resets for Deleted or Removed */
3307 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3308 for (i = 0; i < event_data->NumElements; i++, element++) {
3309 if (le32_to_cpu(event_data->Flags) &
3310 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
3311 continue;
3312 if (element->ReasonCode ==
3313 MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED ||
3314 element->ReasonCode ==
3315 MPI2_EVENT_IR_CHANGE_RC_REMOVED) {
3316 volume_handle = le16_to_cpu(element->VolDevHandle);
3317 _scsih_set_volume_delete_flag(ioc, volume_handle);
3318 _scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
3319 }
3320 }
3321
3322 /* Volume Resets for UNHIDE events */
3323 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3324 for (i = 0; i < event_data->NumElements; i++, element++) {
3325 if (le32_to_cpu(event_data->Flags) &
3326 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
3327 continue;
3328 if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_UNHIDE) {
3329 volume_handle = le16_to_cpu(element->VolDevHandle);
3330 _scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
3331 }
3332 }
3333
3334 if (a)
3335 _scsih_tm_tr_volume_send(ioc, a);
3336 if (b)
3337 _scsih_tm_tr_volume_send(ioc, b);
3338
3339 /* PD target resets */
3340 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3341 for (i = 0; i < event_data->NumElements; i++, element++) {
3342 if (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_UNHIDE)
3343 continue;
3344 handle = le16_to_cpu(element->PhysDiskDevHandle);
3345 volume_handle = le16_to_cpu(element->VolDevHandle);
3346 clear_bit(handle, ioc->pd_handles);
3347 if (!volume_handle)
3348 _scsih_tm_tr_send(ioc, handle);
3349 else if (volume_handle == a || volume_handle == b) {
3350 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
3351 BUG_ON(!delayed_tr);
3352 INIT_LIST_HEAD(&delayed_tr->list);
3353 delayed_tr->handle = handle;
3354 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
3355 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3356 "DELAYED:tr:handle(0x%04x), (open)\n", ioc->name,
3357 handle));
3358 } else
3359 _scsih_tm_tr_send(ioc, handle);
3360 }
3361}
3362
3363
3364/**
3365 * _scsih_check_volume_delete_events - set delete flag for volumes
3366 * @ioc: per adapter object
3367 * @event_data: the event data payload
3368 * Context: interrupt time.
3369 *
3370 * This will handle the case when the cable connected to entire volume is
3371 * pulled. We will take care of setting the deleted flag so normal IO will
3372 * not be sent.
3373 *
3374 * Return nothing.
3375 */
3376static void
3377_scsih_check_volume_delete_events(struct MPT3SAS_ADAPTER *ioc,
3378 Mpi2EventDataIrVolume_t *event_data)
3379{
3380 u32 state;
3381
3382 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
3383 return;
3384 state = le32_to_cpu(event_data->NewValue);
3385 if (state == MPI2_RAID_VOL_STATE_MISSING || state ==
3386 MPI2_RAID_VOL_STATE_FAILED)
3387 _scsih_set_volume_delete_flag(ioc,
3388 le16_to_cpu(event_data->VolDevHandle));
3389}
3390
3391/**
3392 * _scsih_flush_running_cmds - completing outstanding commands.
3393 * @ioc: per adapter object
3394 *
3395 * The flushing out of all pending scmd commands following host reset,
3396 * where all IO is dropped to the floor.
3397 *
3398 * Return nothing.
3399 */
3400static void
3401_scsih_flush_running_cmds(struct MPT3SAS_ADAPTER *ioc)
3402{
3403 struct scsi_cmnd *scmd;
3404 u16 smid;
3405 u16 count = 0;
3406
3407 for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
3408 scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
3409 if (!scmd)
3410 continue;
3411 count++;
3412 mpt3sas_base_free_smid(ioc, smid);
3413 scsi_dma_unmap(scmd);
3414 if (ioc->pci_error_recovery)
3415 scmd->result = DID_NO_CONNECT << 16;
3416 else
3417 scmd->result = DID_RESET << 16;
3418 scmd->scsi_done(scmd);
3419 }
3420 dtmprintk(ioc, pr_info(MPT3SAS_FMT "completing %d cmds\n",
3421 ioc->name, count));
3422}
3423
3424/**
3425 * _scsih_setup_eedp - setup MPI request for EEDP transfer
3426 * @ioc: per adapter object
3427 * @scmd: pointer to scsi command object
3428 * @mpi_request: pointer to the SCSI_IO reqest message frame
3429 *
3430 * Supporting protection 1 and 3.
3431 *
3432 * Returns nothing
3433 */
3434static void
3435_scsih_setup_eedp(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
3436 Mpi2SCSIIORequest_t *mpi_request)
3437{
3438 u16 eedp_flags;
3439 unsigned char prot_op = scsi_get_prot_op(scmd);
3440 unsigned char prot_type = scsi_get_prot_type(scmd);
3441 Mpi25SCSIIORequest_t *mpi_request_3v =
3442 (Mpi25SCSIIORequest_t *)mpi_request;
3443
3444 if (prot_type == SCSI_PROT_DIF_TYPE0 || prot_op == SCSI_PROT_NORMAL)
3445 return;
3446
3447 if (prot_op == SCSI_PROT_READ_STRIP)
3448 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP;
3449 else if (prot_op == SCSI_PROT_WRITE_INSERT)
3450 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_INSERT_OP;
3451 else
3452 return;
3453
3454 switch (prot_type) {
3455 case SCSI_PROT_DIF_TYPE1:
3456 case SCSI_PROT_DIF_TYPE2:
3457
3458 /*
3459 * enable ref/guard checking
3460 * auto increment ref tag
3461 */
3462 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
3463 MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
3464 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
3465 mpi_request->CDB.EEDP32.PrimaryReferenceTag =
3466 cpu_to_be32(scsi_get_lba(scmd));
3467 break;
3468
3469 case SCSI_PROT_DIF_TYPE3:
3470
3471 /*
3472 * enable guard checking
3473 */
3474 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
3475
3476 break;
3477 }
3478
3479 mpi_request_3v->EEDPBlockSize =
3480 cpu_to_le16(scmd->device->sector_size);
3481 mpi_request->EEDPFlags = cpu_to_le16(eedp_flags);
3482}
3483
3484/**
3485 * _scsih_eedp_error_handling - return sense code for EEDP errors
3486 * @scmd: pointer to scsi command object
3487 * @ioc_status: ioc status
3488 *
3489 * Returns nothing
3490 */
3491static void
3492_scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status)
3493{
3494 u8 ascq;
3495
3496 switch (ioc_status) {
3497 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
3498 ascq = 0x01;
3499 break;
3500 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
3501 ascq = 0x02;
3502 break;
3503 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
3504 ascq = 0x03;
3505 break;
3506 default:
3507 ascq = 0x00;
3508 break;
3509 }
3510 scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 0x10,
3511 ascq);
3512 scmd->result = DRIVER_SENSE << 24 | (DID_ABORT << 16) |
3513 SAM_STAT_CHECK_CONDITION;
3514}
3515
3516
3517/**
d8bfbd8d 3518 * _scsih_qcmd - main scsi request entry point
f92363d1
SR		 3519 * @scmd: pointer to scsi command object
3520 * @done: function pointer to be invoked on completion
3521 *
3522 * The callback index is set inside `ioc->scsi_io_cb_idx`.
3523 *
3524 * Returns 0 on success. If there's a failure, return either:
3525 * SCSI_MLQUEUE_DEVICE_BUSY if the device queue is full, or
3526 * SCSI_MLQUEUE_HOST_BUSY if the entire host queue is full
3527 */
3528static int
d8bfbd8d 3529_scsih_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
f92363d1 3530{
d8bfbd8d 3531 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
f92363d1
SR		 3532 struct MPT3SAS_DEVICE *sas_device_priv_data;
3533 struct MPT3SAS_TARGET *sas_target_priv_data;
3534 Mpi2SCSIIORequest_t *mpi_request;
3535 u32 mpi_control;
3536 u16 smid;
3537 u16 handle;
3538
3539#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
3540 if (ioc->logging_level & MPT_DEBUG_SCSI)
3541 scsi_print_command(scmd);
3542#endif
3543
f92363d1
SR		 3544 sas_device_priv_data = scmd->device->hostdata;
3545 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
3546 scmd->result = DID_NO_CONNECT << 16;
3547 scmd->scsi_done(scmd);
3548 return 0;
3549 }
3550
3551 if (ioc->pci_error_recovery || ioc->remove_host) {
3552 scmd->result = DID_NO_CONNECT << 16;
3553 scmd->scsi_done(scmd);
3554 return 0;
3555 }
3556
3557 sas_target_priv_data = sas_device_priv_data->sas_target;
3558
3559 /* invalid device handle */
3560 handle = sas_target_priv_data->handle;
3561 if (handle == MPT3SAS_INVALID_DEVICE_HANDLE) {
3562 scmd->result = DID_NO_CONNECT << 16;
3563 scmd->scsi_done(scmd);
3564 return 0;
3565 }
3566
3567
3568 /* host recovery or link resets sent via IOCTLs */
3569 if (ioc->shost_recovery || ioc->ioc_link_reset_in_progress)
3570 return SCSI_MLQUEUE_HOST_BUSY;
3571
3572 /* device has been deleted */
3573 else if (sas_target_priv_data->deleted) {
3574 scmd->result = DID_NO_CONNECT << 16;
3575 scmd->scsi_done(scmd);
3576 return 0;
3577 /* device busy with task managment */
3578 } else if (sas_target_priv_data->tm_busy ||
3579 sas_device_priv_data->block)
3580 return SCSI_MLQUEUE_DEVICE_BUSY;
3581
3582 if (scmd->sc_data_direction == DMA_FROM_DEVICE)
3583 mpi_control = MPI2_SCSIIO_CONTROL_READ;
3584 else if (scmd->sc_data_direction == DMA_TO_DEVICE)
3585 mpi_control = MPI2_SCSIIO_CONTROL_WRITE;
3586 else
3587 mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER;
3588
3589 /* set tags */
3590 if (!(sas_device_priv_data->flags & MPT_DEVICE_FLAGS_INIT)) {
3591 if (scmd->device->tagged_supported) {
3592 if (scmd->device->ordered_tags)
3593 mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ;
3594 else
3595 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
3596 } else
3597 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
3598 } else
3599 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
3600
3601 if ((sas_device_priv_data->flags & MPT_DEVICE_TLR_ON) &&
3602 scmd->cmd_len != 32)
3603 mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
3604
3605 smid = mpt3sas_base_get_smid_scsiio(ioc, ioc->scsi_io_cb_idx, scmd);
3606 if (!smid) {
3607 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
3608 ioc->name, __func__);
3609 goto out;
3610 }
3611 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
3612 memset(mpi_request, 0, sizeof(Mpi2SCSIIORequest_t));
3613 _scsih_setup_eedp(ioc, scmd, mpi_request);
3614
3615 if (scmd->cmd_len == 32)
3616 mpi_control |= 4 << MPI2_SCSIIO_CONTROL_ADDCDBLEN_SHIFT;
3617 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
3618 if (sas_device_priv_data->sas_target->flags &
3619 MPT_TARGET_FLAGS_RAID_COMPONENT)
3620 mpi_request->Function = MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
3621 else
3622 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
3623 mpi_request->DevHandle = cpu_to_le16(handle);
3624 mpi_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
3625 mpi_request->Control = cpu_to_le32(mpi_control);
3626 mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len);
3627 mpi_request->MsgFlags = MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR;
3628 mpi_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
3629 mpi_request->SenseBufferLowAddress =
3630 mpt3sas_base_get_sense_buffer_dma(ioc, smid);
3631 mpi_request->SGLOffset0 = offsetof(Mpi2SCSIIORequest_t, SGL) / 4;
3632 int_to_scsilun(sas_device_priv_data->lun, (struct scsi_lun *)
3633 mpi_request->LUN);
3634 memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
3635
3636 if (mpi_request->DataLength) {
3637 if (ioc->build_sg_scmd(ioc, scmd, smid)) {
3638 mpt3sas_base_free_smid(ioc, smid);
3639 goto out;
3640 }
3641 } else
3642 ioc->build_zero_len_sge(ioc, &mpi_request->SGL);
3643
3644 if (likely(mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)) {
3645 if (sas_target_priv_data->flags & MPT_TARGET_FASTPATH_IO) {
3646 mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len |
3647 MPI25_SCSIIO_IOFLAGS_FAST_PATH);
3648 mpt3sas_base_put_smid_fast_path(ioc, smid, handle);
3649 } else
3650 mpt3sas_base_put_smid_scsi_io(ioc, smid, handle);
3651 } else
3652 mpt3sas_base_put_smid_default(ioc, smid);
3653 return 0;
3654
3655 out:
3656 return SCSI_MLQUEUE_HOST_BUSY;
3657}
f92363d1
SR		 3658
3659/**
3660 * _scsih_normalize_sense - normalize descriptor and fixed format sense data
3661 * @sense_buffer: sense data returned by target
3662 * @data: normalized skey/asc/ascq
3663 *
3664 * Return nothing.
3665 */
3666static void
3667_scsih_normalize_sense(char *sense_buffer, struct sense_info *data)
3668{
3669 if ((sense_buffer[0] & 0x7F) >= 0x72) {
3670 /* descriptor format */
3671 data->skey = sense_buffer[1] & 0x0F;
3672 data->asc = sense_buffer[2];
3673 data->ascq = sense_buffer[3];
3674 } else {
3675 /* fixed format */
3676 data->skey = sense_buffer[2] & 0x0F;
3677 data->asc = sense_buffer[12];
3678 data->ascq = sense_buffer[13];
3679 }
3680}
3681
3682#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
3683/**
3684 * _scsih_scsi_ioc_info - translated non-succesfull SCSI_IO request
3685 * @ioc: per adapter object
3686 * @scmd: pointer to scsi command object
3687 * @mpi_reply: reply mf payload returned from firmware
3688 *
3689 * scsi_status - SCSI Status code returned from target device
3690 * scsi_state - state info associated with SCSI_IO determined by ioc
3691 * ioc_status - ioc supplied status info
3692 *
3693 * Return nothing.
3694 */
3695static void
3696_scsih_scsi_ioc_info(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
3697 Mpi2SCSIIOReply_t *mpi_reply, u16 smid)
3698{
3699 u32 response_info;
3700 u8 *response_bytes;
3701 u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
3702 MPI2_IOCSTATUS_MASK;
3703 u8 scsi_state = mpi_reply->SCSIState;
3704 u8 scsi_status = mpi_reply->SCSIStatus;
3705 char *desc_ioc_state = NULL;
3706 char *desc_scsi_status = NULL;
3707 char *desc_scsi_state = ioc->tmp_string;
3708 u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
3709 struct _sas_device *sas_device = NULL;
3710 unsigned long flags;
3711 struct scsi_target *starget = scmd->device->sdev_target;
3712 struct MPT3SAS_TARGET *priv_target = starget->hostdata;
3713 char *device_str = NULL;
3714
3715 if (!priv_target)
3716 return;
3717 device_str = "volume";
3718
3719 if (log_info == 0x31170000)
3720 return;
3721
3722 switch (ioc_status) {
3723 case MPI2_IOCSTATUS_SUCCESS:
3724 desc_ioc_state = "success";
3725 break;
3726 case MPI2_IOCSTATUS_INVALID_FUNCTION:
3727 desc_ioc_state = "invalid function";
3728 break;
3729 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
3730 desc_ioc_state = "scsi recovered error";
3731 break;
3732 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
3733 desc_ioc_state = "scsi invalid dev handle";
3734 break;
3735 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
3736 desc_ioc_state = "scsi device not there";
3737 break;
3738 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
3739 desc_ioc_state = "scsi data overrun";
3740 break;
3741 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
3742 desc_ioc_state = "scsi data underrun";
3743 break;
3744 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
3745 desc_ioc_state = "scsi io data error";
3746 break;
3747 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
3748 desc_ioc_state = "scsi protocol error";
3749 break;
3750 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
3751 desc_ioc_state = "scsi task terminated";
3752 break;
3753 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
3754 desc_ioc_state = "scsi residual mismatch";
3755 break;
3756 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
3757 desc_ioc_state = "scsi task mgmt failed";
3758 break;
3759 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
3760 desc_ioc_state = "scsi ioc terminated";
3761 break;
3762 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
3763 desc_ioc_state = "scsi ext terminated";
3764 break;
3765 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
3766 desc_ioc_state = "eedp guard error";
3767 break;
3768 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
3769 desc_ioc_state = "eedp ref tag error";
3770 break;
3771 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
3772 desc_ioc_state = "eedp app tag error";
3773 break;
3774 default:
3775 desc_ioc_state = "unknown";
3776 break;
3777 }
3778
3779 switch (scsi_status) {
3780 case MPI2_SCSI_STATUS_GOOD:
3781 desc_scsi_status = "good";
3782 break;
3783 case MPI2_SCSI_STATUS_CHECK_CONDITION:
3784 desc_scsi_status = "check condition";
3785 break;
3786 case MPI2_SCSI_STATUS_CONDITION_MET:
3787 desc_scsi_status = "condition met";
3788 break;
3789 case MPI2_SCSI_STATUS_BUSY:
3790 desc_scsi_status = "busy";
3791 break;
3792 case MPI2_SCSI_STATUS_INTERMEDIATE:
3793 desc_scsi_status = "intermediate";
3794 break;
3795 case MPI2_SCSI_STATUS_INTERMEDIATE_CONDMET:
3796 desc_scsi_status = "intermediate condmet";
3797 break;
3798 case MPI2_SCSI_STATUS_RESERVATION_CONFLICT:
3799 desc_scsi_status = "reservation conflict";
3800 break;
3801 case MPI2_SCSI_STATUS_COMMAND_TERMINATED:
3802 desc_scsi_status = "command terminated";
3803 break;
3804 case MPI2_SCSI_STATUS_TASK_SET_FULL:
3805 desc_scsi_status = "task set full";
3806 break;
3807 case MPI2_SCSI_STATUS_ACA_ACTIVE:
3808 desc_scsi_status = "aca active";
3809 break;
3810 case MPI2_SCSI_STATUS_TASK_ABORTED:
3811 desc_scsi_status = "task aborted";
3812 break;
3813 default:
3814 desc_scsi_status = "unknown";
3815 break;
3816 }
3817
3818 desc_scsi_state[0] = '\0';
3819 if (!scsi_state)
3820 desc_scsi_state = " ";
3821 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
3822 strcat(desc_scsi_state, "response info ");
3823 if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
3824 strcat(desc_scsi_state, "state terminated ");
3825 if (scsi_state & MPI2_SCSI_STATE_NO_SCSI_STATUS)
3826 strcat(desc_scsi_state, "no status ");
3827 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_FAILED)
3828 strcat(desc_scsi_state, "autosense failed ");
3829 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID)
3830 strcat(desc_scsi_state, "autosense valid ");
3831
3832 scsi_print_command(scmd);
3833
3834 if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
3835 pr_warn(MPT3SAS_FMT "\t%s wwid(0x%016llx)\n", ioc->name,
3836 device_str, (unsigned long long)priv_target->sas_address);
3837 } else {
3838 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3839 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
3840 priv_target->sas_address);
3841 if (sas_device) {
3842 pr_warn(MPT3SAS_FMT
3843 "\tsas_address(0x%016llx), phy(%d)\n",
3844 ioc->name, (unsigned long long)
3845 sas_device->sas_address, sas_device->phy);
3846 pr_warn(MPT3SAS_FMT
3847 "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
3848 ioc->name, (unsigned long long)
3849 sas_device->enclosure_logical_id, sas_device->slot);
3850 }
3851 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3852 }
3853
3854 pr_warn(MPT3SAS_FMT
3855 "\thandle(0x%04x), ioc_status(%s)(0x%04x), smid(%d)\n",
3856 ioc->name, le16_to_cpu(mpi_reply->DevHandle),
3857 desc_ioc_state, ioc_status, smid);
3858 pr_warn(MPT3SAS_FMT
3859 "\trequest_len(%d), underflow(%d), resid(%d)\n",
3860 ioc->name, scsi_bufflen(scmd), scmd->underflow,
3861 scsi_get_resid(scmd));
3862 pr_warn(MPT3SAS_FMT
3863 "\ttag(%d), transfer_count(%d), sc->result(0x%08x)\n",
3864 ioc->name, le16_to_cpu(mpi_reply->TaskTag),
3865 le32_to_cpu(mpi_reply->TransferCount), scmd->result);
3866 pr_warn(MPT3SAS_FMT
3867 "\tscsi_status(%s)(0x%02x), scsi_state(%s)(0x%02x)\n",
3868 ioc->name, desc_scsi_status,
3869 scsi_status, desc_scsi_state, scsi_state);
3870
3871 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
3872 struct sense_info data;
3873 _scsih_normalize_sense(scmd->sense_buffer, &data);
3874 pr_warn(MPT3SAS_FMT
3875 "\t[sense_key,asc,ascq]: [0x%02x,0x%02x,0x%02x], count(%d)\n",
3876 ioc->name, data.skey,
3877 data.asc, data.ascq, le32_to_cpu(mpi_reply->SenseCount));
3878 }
3879
3880 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
3881 response_info = le32_to_cpu(mpi_reply->ResponseInfo);
3882 response_bytes = (u8 *)&response_info;
3883 _scsih_response_code(ioc, response_bytes[0]);
3884 }
3885}
3886#endif
3887
3888/**
3889 * _scsih_turn_on_fault_led - illuminate Fault LED
3890 * @ioc: per adapter object
3891 * @handle: device handle
3892 * Context: process
3893 *
3894 * Return nothing.
3895 */
3896static void
3897_scsih_turn_on_fault_led(struct MPT3SAS_ADAPTER *ioc, u16 handle)
3898{
3899 Mpi2SepReply_t mpi_reply;
3900 Mpi2SepRequest_t mpi_request;
3901
3902 memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t));
3903 mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
3904 mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS;
3905 mpi_request.SlotStatus =
3906 cpu_to_le32(MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
3907 mpi_request.DevHandle = cpu_to_le16(handle);
3908 mpi_request.Flags = MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS;
3909 if ((mpt3sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
3910 &mpi_request)) != 0) {
3911 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", ioc->name,
3912 __FILE__, __LINE__, __func__);
3913 return;
3914 }
3915
3916 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) {
3917 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3918 "enclosure_processor: ioc_status (0x%04x), loginfo(0x%08x)\n",
3919 ioc->name, le16_to_cpu(mpi_reply.IOCStatus),
3920 le32_to_cpu(mpi_reply.IOCLogInfo)));
3921 return;
3922 }
3923}
3924
3925/**
3926 * _scsih_send_event_to_turn_on_fault_led - fire delayed event
3927 * @ioc: per adapter object
3928 * @handle: device handle
3929 * Context: interrupt.
3930 *
3931 * Return nothing.
3932 */
3933static void
3934_scsih_send_event_to_turn_on_fault_led(struct MPT3SAS_ADAPTER *ioc, u16 handle)
3935{
3936 struct fw_event_work *fw_event;
3937
3938 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
3939 if (!fw_event)
3940 return;
3941 fw_event->event = MPT3SAS_TURN_ON_FAULT_LED;
3942 fw_event->device_handle = handle;
3943 fw_event->ioc = ioc;
3944 _scsih_fw_event_add(ioc, fw_event);
3945}
3946
3947/**
3948 * _scsih_smart_predicted_fault - process smart errors
3949 * @ioc: per adapter object
3950 * @handle: device handle
3951 * Context: interrupt.
3952 *
3953 * Return nothing.
3954 */
3955static void
3956_scsih_smart_predicted_fault(struct MPT3SAS_ADAPTER *ioc, u16 handle)
3957{
3958 struct scsi_target *starget;
3959 struct MPT3SAS_TARGET *sas_target_priv_data;
3960 Mpi2EventNotificationReply_t *event_reply;
3961 Mpi2EventDataSasDeviceStatusChange_t *event_data;
3962 struct _sas_device *sas_device;
3963 ssize_t sz;
3964 unsigned long flags;
3965
3966 /* only handle non-raid devices */
3967 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3968 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
3969 if (!sas_device) {
3970 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3971 return;
3972 }
3973 starget = sas_device->starget;
3974 sas_target_priv_data = starget->hostdata;
3975
3976 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) ||
3977 ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) {
3978 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3979 return;
3980 }
3981 starget_printk(KERN_WARNING, starget, "predicted fault\n");
3982 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3983
3984 if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM)
3985 _scsih_send_event_to_turn_on_fault_led(ioc, handle);
3986
3987 /* insert into event log */
3988 sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
3989 sizeof(Mpi2EventDataSasDeviceStatusChange_t);
3990 event_reply = kzalloc(sz, GFP_KERNEL);
3991 if (!event_reply) {
3992 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
3993 ioc->name, __FILE__, __LINE__, __func__);
3994 return;
3995 }
3996
3997 event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
3998 event_reply->Event =
3999 cpu_to_le16(MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
4000 event_reply->MsgLength = sz/4;
4001 event_reply->EventDataLength =
4002 cpu_to_le16(sizeof(Mpi2EventDataSasDeviceStatusChange_t)/4);
4003 event_data = (Mpi2EventDataSasDeviceStatusChange_t *)
4004 event_reply->EventData;
4005 event_data->ReasonCode = MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA;
4006 event_data->ASC = 0x5D;
4007 event_data->DevHandle = cpu_to_le16(handle);
4008 event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address);
4009 mpt3sas_ctl_add_to_event_log(ioc, event_reply);
4010 kfree(event_reply);
4011}
4012
4013/**
4014 * _scsih_io_done - scsi request callback
4015 * @ioc: per adapter object
4016 * @smid: system request message index
4017 * @msix_index: MSIX table index supplied by the OS
4018 * @reply: reply message frame(lower 32bit addr)
4019 *
4020 * Callback handler when using _scsih_qcmd.
4021 *
4022 * Return 1 meaning mf should be freed from _base_interrupt
4023 * 0 means the mf is freed from this function.
4024 */
4025static u8
4026_scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
4027{
4028 Mpi2SCSIIORequest_t *mpi_request;
4029 Mpi2SCSIIOReply_t *mpi_reply;
4030 struct scsi_cmnd *scmd;
4031 u16 ioc_status;
4032 u32 xfer_cnt;
4033 u8 scsi_state;
4034 u8 scsi_status;
4035 u32 log_info;
4036 struct MPT3SAS_DEVICE *sas_device_priv_data;
4037 u32 response_code = 0;
4038
4039 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
4040 scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
4041 if (scmd == NULL)
4042 return 1;
4043
4044 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
4045
4046 if (mpi_reply == NULL) {
4047 scmd->result = DID_OK << 16;
4048 goto out;
4049 }
4050
4051 sas_device_priv_data = scmd->device->hostdata;
4052 if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
4053 sas_device_priv_data->sas_target->deleted) {
4054 scmd->result = DID_NO_CONNECT << 16;
4055 goto out;
4056 }
4057 ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
4058
4059 /* turning off TLR */
4060 scsi_state = mpi_reply->SCSIState;
4061 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
4062 response_code =
4063 le32_to_cpu(mpi_reply->ResponseInfo) & 0xFF;
4064 if (!sas_device_priv_data->tlr_snoop_check) {
4065 sas_device_priv_data->tlr_snoop_check++;
4066 if ((sas_device_priv_data->flags & MPT_DEVICE_TLR_ON) &&
4067 response_code == MPI2_SCSITASKMGMT_RSP_INVALID_FRAME)
4068 sas_device_priv_data->flags &=
4069 ~MPT_DEVICE_TLR_ON;
4070 }
4071
4072 xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
4073 scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
4074 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
4075 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
4076 else
4077 log_info = 0;
4078 ioc_status &= MPI2_IOCSTATUS_MASK;
4079 scsi_status = mpi_reply->SCSIStatus;
4080
4081 if (ioc_status == MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
4082 (scsi_status == MPI2_SCSI_STATUS_BUSY ||
4083 scsi_status == MPI2_SCSI_STATUS_RESERVATION_CONFLICT ||
4084 scsi_status == MPI2_SCSI_STATUS_TASK_SET_FULL)) {
4085 ioc_status = MPI2_IOCSTATUS_SUCCESS;
4086 }
4087
4088 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
4089 struct sense_info data;
4090 const void *sense_data = mpt3sas_base_get_sense_buffer(ioc,
4091 smid);
4092 u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
4093 le32_to_cpu(mpi_reply->SenseCount));
4094 memcpy(scmd->sense_buffer, sense_data, sz);
4095 _scsih_normalize_sense(scmd->sense_buffer, &data);
4096 /* failure prediction threshold exceeded */
4097 if (data.asc == 0x5D)
4098 _scsih_smart_predicted_fault(ioc,
4099 le16_to_cpu(mpi_reply->DevHandle));
4100 mpt3sas_trigger_scsi(ioc, data.skey, data.asc, data.ascq);
4101 }
4102
4103 switch (ioc_status) {
4104 case MPI2_IOCSTATUS_BUSY:
4105 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
4106 scmd->result = SAM_STAT_BUSY;
4107 break;
4108
4109 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
4110 scmd->result = DID_NO_CONNECT << 16;
4111 break;
4112
4113 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
4114 if (sas_device_priv_data->block) {
4115 scmd->result = DID_TRANSPORT_DISRUPTED << 16;
4116 goto out;
4117 }
4118 if (log_info == 0x31110630) {
4119 if (scmd->retries > 2) {
4120 scmd->result = DID_NO_CONNECT << 16;
4121 scsi_device_set_state(scmd->device,
4122 SDEV_OFFLINE);
4123 } else {
4124 scmd->result = DID_SOFT_ERROR << 16;
4125 scmd->device->expecting_cc_ua = 1;
4126 }
4127 break;
4128 }
4129 scmd->result = DID_SOFT_ERROR << 16;
4130 break;
4131 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
4132 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
4133 scmd->result = DID_RESET << 16;
4134 break;
4135
4136 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
4137 if ((xfer_cnt == 0) || (scmd->underflow > xfer_cnt))
4138 scmd->result = DID_SOFT_ERROR << 16;
4139 else
4140 scmd->result = (DID_OK << 16) | scsi_status;
4141 break;
4142
4143 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
4144 scmd->result = (DID_OK << 16) | scsi_status;
4145
4146 if ((scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID))
4147 break;
4148
4149 if (xfer_cnt < scmd->underflow) {
4150 if (scsi_status == SAM_STAT_BUSY)
4151 scmd->result = SAM_STAT_BUSY;
4152 else
4153 scmd->result = DID_SOFT_ERROR << 16;
4154 } else if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
4155 MPI2_SCSI_STATE_NO_SCSI_STATUS))
4156 scmd->result = DID_SOFT_ERROR << 16;
4157 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
4158 scmd->result = DID_RESET << 16;
4159 else if (!xfer_cnt && scmd->cmnd[0] == REPORT_LUNS) {
4160 mpi_reply->SCSIState = MPI2_SCSI_STATE_AUTOSENSE_VALID;
4161 mpi_reply->SCSIStatus = SAM_STAT_CHECK_CONDITION;
4162 scmd->result = (DRIVER_SENSE << 24) |
4163 SAM_STAT_CHECK_CONDITION;
4164 scmd->sense_buffer[0] = 0x70;
4165 scmd->sense_buffer[2] = ILLEGAL_REQUEST;
4166 scmd->sense_buffer[12] = 0x20;
4167 scmd->sense_buffer[13] = 0;
4168 }
4169 break;
4170
4171 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
4172 scsi_set_resid(scmd, 0);
4173 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
4174 case MPI2_IOCSTATUS_SUCCESS:
4175 scmd->result = (DID_OK << 16) | scsi_status;
4176 if (response_code ==
4177 MPI2_SCSITASKMGMT_RSP_INVALID_FRAME ||
4178 (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
4179 MPI2_SCSI_STATE_NO_SCSI_STATUS)))
4180 scmd->result = DID_SOFT_ERROR << 16;
4181 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
4182 scmd->result = DID_RESET << 16;
4183 break;
4184
4185 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
4186 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
4187 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
4188 _scsih_eedp_error_handling(scmd, ioc_status);
4189 break;
4190
4191 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
4192 case MPI2_IOCSTATUS_INVALID_FUNCTION:
4193 case MPI2_IOCSTATUS_INVALID_SGL:
4194 case MPI2_IOCSTATUS_INTERNAL_ERROR:
4195 case MPI2_IOCSTATUS_INVALID_FIELD:
4196 case MPI2_IOCSTATUS_INVALID_STATE:
4197 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
4198 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
4199 default:
4200 scmd->result = DID_SOFT_ERROR << 16;
4201 break;
4202
4203 }
4204
4205#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
4206 if (scmd->result && (ioc->logging_level & MPT_DEBUG_REPLY))
4207 _scsih_scsi_ioc_info(ioc , scmd, mpi_reply, smid);
4208#endif
4209
4210 out:
4211
4212 scsi_dma_unmap(scmd);
4213
4214 scmd->scsi_done(scmd);
4215 return 1;
4216}
4217
4218/**
4219 * _scsih_sas_host_refresh - refreshing sas host object contents
4220 * @ioc: per adapter object
4221 * Context: user
4222 *
4223 * During port enable, fw will send topology events for every device. Its
4224 * possible that the handles may change from the previous setting, so this
4225 * code keeping handles updating if changed.
4226 *
4227 * Return nothing.
4228 */
4229static void
4230_scsih_sas_host_refresh(struct MPT3SAS_ADAPTER *ioc)
4231{
4232 u16 sz;
4233 u16 ioc_status;
4234 int i;
4235 Mpi2ConfigReply_t mpi_reply;
4236 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
4237 u16 attached_handle;
4238 u8 link_rate;
4239
4240 dtmprintk(ioc, pr_info(MPT3SAS_FMT
4241 "updating handles for sas_host(0x%016llx)\n",
4242 ioc->name, (unsigned long long)ioc->sas_hba.sas_address));
4243
4244 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys
4245 * sizeof(Mpi2SasIOUnit0PhyData_t));
4246 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
4247 if (!sas_iounit_pg0) {
4248 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4249 ioc->name, __FILE__, __LINE__, __func__);
4250 return;
4251 }
4252
4253 if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
4254 sas_iounit_pg0, sz)) != 0)
4255 goto out;
4256 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
4257 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
4258 goto out;
4259 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
4260 link_rate = sas_iounit_pg0->PhyData[i].NegotiatedLinkRate >> 4;
4261 if (i == 0)
4262 ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
4263 PhyData[0].ControllerDevHandle);
4264 ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
4265 attached_handle = le16_to_cpu(sas_iounit_pg0->PhyData[i].
4266 AttachedDevHandle);
4267 if (attached_handle && link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
4268 link_rate = MPI2_SAS_NEG_LINK_RATE_1_5;
4269 mpt3sas_transport_update_links(ioc, ioc->sas_hba.sas_address,
4270 attached_handle, i, link_rate);
4271 }
4272 out:
4273 kfree(sas_iounit_pg0);
4274}
4275
4276/**
4277 * _scsih_sas_host_add - create sas host object
4278 * @ioc: per adapter object
4279 *
4280 * Creating host side data object, stored in ioc->sas_hba
4281 *
4282 * Return nothing.
4283 */
4284static void
4285_scsih_sas_host_add(struct MPT3SAS_ADAPTER *ioc)
4286{
4287 int i;
4288 Mpi2ConfigReply_t mpi_reply;
4289 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
4290 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
4291 Mpi2SasPhyPage0_t phy_pg0;
4292 Mpi2SasDevicePage0_t sas_device_pg0;
4293 Mpi2SasEnclosurePage0_t enclosure_pg0;
4294 u16 ioc_status;
4295 u16 sz;
4296 u8 device_missing_delay;
4297
4298 mpt3sas_config_get_number_hba_phys(ioc, &ioc->sas_hba.num_phys);
4299 if (!ioc->sas_hba.num_phys) {
4300 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4301 ioc->name, __FILE__, __LINE__, __func__);
4302 return;
4303 }
4304
4305 /* sas_iounit page 0 */
4306 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys *
4307 sizeof(Mpi2SasIOUnit0PhyData_t));
4308 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
4309 if (!sas_iounit_pg0) {
4310 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4311 ioc->name, __FILE__, __LINE__, __func__);
4312 return;
4313 }
4314 if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
4315 sas_iounit_pg0, sz))) {
4316 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4317 ioc->name, __FILE__, __LINE__, __func__);
4318 goto out;
4319 }
4320 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4321 MPI2_IOCSTATUS_MASK;
4322 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4323 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4324 ioc->name, __FILE__, __LINE__, __func__);
4325 goto out;
4326 }
4327
4328 /* sas_iounit page 1 */
4329 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
4330 sizeof(Mpi2SasIOUnit1PhyData_t));
4331 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
4332 if (!sas_iounit_pg1) {
4333 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4334 ioc->name, __FILE__, __LINE__, __func__);
4335 goto out;
4336 }
4337 if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
4338 sas_iounit_pg1, sz))) {
4339 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4340 ioc->name, __FILE__, __LINE__, __func__);
4341 goto out;
4342 }
4343 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4344 MPI2_IOCSTATUS_MASK;
4345 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4346 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4347 ioc->name, __FILE__, __LINE__, __func__);
4348 goto out;
4349 }
4350
4351 ioc->io_missing_delay =
4352 sas_iounit_pg1->IODeviceMissingDelay;
4353 device_missing_delay =
4354 sas_iounit_pg1->ReportDeviceMissingDelay;
4355 if (device_missing_delay & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
4356 ioc->device_missing_delay = (device_missing_delay &
4357 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
4358 else
4359 ioc->device_missing_delay = device_missing_delay &
4360 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
4361
4362 ioc->sas_hba.parent_dev = &ioc->shost->shost_gendev;
4363 ioc->sas_hba.phy = kcalloc(ioc->sas_hba.num_phys,
4364 sizeof(struct _sas_phy), GFP_KERNEL);
4365 if (!ioc->sas_hba.phy) {
4366 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4367 ioc->name, __FILE__, __LINE__, __func__);
4368 goto out;
4369 }
4370 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
4371 if ((mpt3sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
4372 i))) {
4373 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4374 ioc->name, __FILE__, __LINE__, __func__);
4375 goto out;
4376 }
4377 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4378 MPI2_IOCSTATUS_MASK;
4379 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4380 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4381 ioc->name, __FILE__, __LINE__, __func__);
4382 goto out;
4383 }
4384
4385 if (i == 0)
4386 ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
4387 PhyData[0].ControllerDevHandle);
4388 ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
4389 ioc->sas_hba.phy[i].phy_id = i;
4390 mpt3sas_transport_add_host_phy(ioc, &ioc->sas_hba.phy[i],
4391 phy_pg0, ioc->sas_hba.parent_dev);
4392 }
4393 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
4394 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.handle))) {
4395 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4396 ioc->name, __FILE__, __LINE__, __func__);
4397 goto out;
4398 }
4399 ioc->sas_hba.enclosure_handle =
4400 le16_to_cpu(sas_device_pg0.EnclosureHandle);
4401 ioc->sas_hba.sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4402 pr_info(MPT3SAS_FMT
4403 "host_add: handle(0x%04x), sas_addr(0x%016llx), phys(%d)\n",
4404 ioc->name, ioc->sas_hba.handle,
4405 (unsigned long long) ioc->sas_hba.sas_address,
4406 ioc->sas_hba.num_phys) ;
4407
4408 if (ioc->sas_hba.enclosure_handle) {
4409 if (!(mpt3sas_config_get_enclosure_pg0(ioc, &mpi_reply,
4410 &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
4411 ioc->sas_hba.enclosure_handle)))
4412 ioc->sas_hba.enclosure_logical_id =
4413 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
4414 }
4415
4416 out:
4417 kfree(sas_iounit_pg1);
4418 kfree(sas_iounit_pg0);
4419}
4420
4421/**
4422 * _scsih_expander_add - creating expander object
4423 * @ioc: per adapter object
4424 * @handle: expander handle
4425 *
4426 * Creating expander object, stored in ioc->sas_expander_list.
4427 *
4428 * Return 0 for success, else error.
4429 */
4430static int
4431_scsih_expander_add(struct MPT3SAS_ADAPTER *ioc, u16 handle)
4432{
4433 struct _sas_node *sas_expander;
4434 Mpi2ConfigReply_t mpi_reply;
4435 Mpi2ExpanderPage0_t expander_pg0;
4436 Mpi2ExpanderPage1_t expander_pg1;
4437 Mpi2SasEnclosurePage0_t enclosure_pg0;
4438 u32 ioc_status;
4439 u16 parent_handle;
4440 u64 sas_address, sas_address_parent = 0;
4441 int i;
4442 unsigned long flags;
4443 struct _sas_port *mpt3sas_port = NULL;
4444
4445 int rc = 0;
4446
4447 if (!handle)
4448 return -1;
4449
4450 if (ioc->shost_recovery || ioc->pci_error_recovery)
4451 return -1;
4452
4453 if ((mpt3sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
4454 MPI2_SAS_EXPAND_PGAD_FORM_HNDL, handle))) {
4455 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4456 ioc->name, __FILE__, __LINE__, __func__);
4457 return -1;
4458 }
4459
4460 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4461 MPI2_IOCSTATUS_MASK;
4462 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4463 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4464 ioc->name, __FILE__, __LINE__, __func__);
4465 return -1;
4466 }
4467
4468 /* handle out of order topology events */
4469 parent_handle = le16_to_cpu(expander_pg0.ParentDevHandle);
4470 if (_scsih_get_sas_address(ioc, parent_handle, &sas_address_parent)
4471 != 0) {
4472 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4473 ioc->name, __FILE__, __LINE__, __func__);
4474 return -1;
4475 }
4476 if (sas_address_parent != ioc->sas_hba.sas_address) {
4477 spin_lock_irqsave(&ioc->sas_node_lock, flags);
4478 sas_expander = mpt3sas_scsih_expander_find_by_sas_address(ioc,
4479 sas_address_parent);
4480 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4481 if (!sas_expander) {
4482 rc = _scsih_expander_add(ioc, parent_handle);
4483 if (rc != 0)
4484 return rc;
4485 }
4486 }
4487
4488 spin_lock_irqsave(&ioc->sas_node_lock, flags);
4489 sas_address = le64_to_cpu(expander_pg0.SASAddress);
4490 sas_expander = mpt3sas_scsih_expander_find_by_sas_address(ioc,
4491 sas_address);
4492 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4493
4494 if (sas_expander)
4495 return 0;
4496
4497 sas_expander = kzalloc(sizeof(struct _sas_node),
4498 GFP_KERNEL);
4499 if (!sas_expander) {
4500 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4501 ioc->name, __FILE__, __LINE__, __func__);
4502 return -1;
4503 }
4504
4505 sas_expander->handle = handle;
4506 sas_expander->num_phys = expander_pg0.NumPhys;
4507 sas_expander->sas_address_parent = sas_address_parent;
4508 sas_expander->sas_address = sas_address;
4509
4510 pr_info(MPT3SAS_FMT "expander_add: handle(0x%04x)," \
4511 " parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n", ioc->name,
4512 handle, parent_handle, (unsigned long long)
4513 sas_expander->sas_address, sas_expander->num_phys);
4514
4515 if (!sas_expander->num_phys)
4516 goto out_fail;
4517 sas_expander->phy = kcalloc(sas_expander->num_phys,
4518 sizeof(struct _sas_phy), GFP_KERNEL);
4519 if (!sas_expander->phy) {
4520 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4521 ioc->name, __FILE__, __LINE__, __func__);
4522 rc = -1;
4523 goto out_fail;
4524 }
4525
4526 INIT_LIST_HEAD(&sas_expander->sas_port_list);
4527 mpt3sas_port = mpt3sas_transport_port_add(ioc, handle,
4528 sas_address_parent);
4529 if (!mpt3sas_port) {
4530 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4531 ioc->name, __FILE__, __LINE__, __func__);
4532 rc = -1;
4533 goto out_fail;
4534 }
4535 sas_expander->parent_dev = &mpt3sas_port->rphy->dev;
4536
4537 for (i = 0 ; i < sas_expander->num_phys ; i++) {
4538 if ((mpt3sas_config_get_expander_pg1(ioc, &mpi_reply,
4539 &expander_pg1, i, handle))) {
4540 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4541 ioc->name, __FILE__, __LINE__, __func__);
4542 rc = -1;
4543 goto out_fail;
4544 }
4545 sas_expander->phy[i].handle = handle;
4546 sas_expander->phy[i].phy_id = i;
4547
4548 if ((mpt3sas_transport_add_expander_phy(ioc,
4549 &sas_expander->phy[i], expander_pg1,
4550 sas_expander->parent_dev))) {
4551 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4552 ioc->name, __FILE__, __LINE__, __func__);
4553 rc = -1;
4554 goto out_fail;
4555 }
4556 }
4557
4558 if (sas_expander->enclosure_handle) {
4559 if (!(mpt3sas_config_get_enclosure_pg0(ioc, &mpi_reply,
4560 &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
4561 sas_expander->enclosure_handle)))
4562 sas_expander->enclosure_logical_id =
4563 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
4564 }
4565
4566 _scsih_expander_node_add(ioc, sas_expander);
4567 return 0;
4568
4569 out_fail:
4570
4571 if (mpt3sas_port)
4572 mpt3sas_transport_port_remove(ioc, sas_expander->sas_address,
4573 sas_address_parent);
4574 kfree(sas_expander);
4575 return rc;
4576}
4577
4578/**
4579 * mpt3sas_expander_remove - removing expander object
4580 * @ioc: per adapter object
4581 * @sas_address: expander sas_address
4582 *
4583 * Return nothing.
4584 */
4585void
4586mpt3sas_expander_remove(struct MPT3SAS_ADAPTER *ioc, u64 sas_address)
4587{
4588 struct _sas_node *sas_expander;
4589 unsigned long flags;
4590
4591 if (ioc->shost_recovery)
4592 return;
4593
4594 spin_lock_irqsave(&ioc->sas_node_lock, flags);
4595 sas_expander = mpt3sas_scsih_expander_find_by_sas_address(ioc,
4596 sas_address);
4597 if (sas_expander)
4598 list_del(&sas_expander->list);
4599 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4600 if (sas_expander)
4601 _scsih_expander_node_remove(ioc, sas_expander);
4602}
4603
4604/**
4605 * _scsih_done - internal SCSI_IO callback handler.
4606 * @ioc: per adapter object
4607 * @smid: system request message index
4608 * @msix_index: MSIX table index supplied by the OS
4609 * @reply: reply message frame(lower 32bit addr)
4610 *
4611 * Callback handler when sending internal generated SCSI_IO.
4612 * The callback index passed is `ioc->scsih_cb_idx`
4613 *
4614 * Return 1 meaning mf should be freed from _base_interrupt
4615 * 0 means the mf is freed from this function.
4616 */
4617static u8
4618_scsih_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
4619{
4620 MPI2DefaultReply_t *mpi_reply;
4621
4622 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
4623 if (ioc->scsih_cmds.status == MPT3_CMD_NOT_USED)
4624 return 1;
4625 if (ioc->scsih_cmds.smid != smid)
4626 return 1;
4627 ioc->scsih_cmds.status |= MPT3_CMD_COMPLETE;
4628 if (mpi_reply) {
4629 memcpy(ioc->scsih_cmds.reply, mpi_reply,
4630 mpi_reply->MsgLength*4);
4631 ioc->scsih_cmds.status |= MPT3_CMD_REPLY_VALID;
4632 }
4633 ioc->scsih_cmds.status &= ~MPT3_CMD_PENDING;
4634 complete(&ioc->scsih_cmds.done);
4635 return 1;
4636}
4637
4638
4639
4640
4641#define MPT3_MAX_LUNS (255)
4642
4643
4644/**
4645 * _scsih_check_access_status - check access flags
4646 * @ioc: per adapter object
4647 * @sas_address: sas address
4648 * @handle: sas device handle
4649 * @access_flags: errors returned during discovery of the device
4650 *
4651 * Return 0 for success, else failure
4652 */
4653static u8
4654_scsih_check_access_status(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
4655 u16 handle, u8 access_status)
4656{
4657 u8 rc = 1;
4658 char *desc = NULL;
4659
4660 switch (access_status) {
4661 case MPI2_SAS_DEVICE0_ASTATUS_NO_ERRORS:
4662 case MPI2_SAS_DEVICE0_ASTATUS_SATA_NEEDS_INITIALIZATION:
4663 rc = 0;
4664 break;
4665 case MPI2_SAS_DEVICE0_ASTATUS_SATA_CAPABILITY_FAILED:
4666 desc = "sata capability failed";
4667 break;
4668 case MPI2_SAS_DEVICE0_ASTATUS_SATA_AFFILIATION_CONFLICT:
4669 desc = "sata affiliation conflict";
4670 break;
4671 case MPI2_SAS_DEVICE0_ASTATUS_ROUTE_NOT_ADDRESSABLE:
4672 desc = "route not addressable";
4673 break;
4674 case MPI2_SAS_DEVICE0_ASTATUS_SMP_ERROR_NOT_ADDRESSABLE:
4675 desc = "smp error not addressable";
4676 break;
4677 case MPI2_SAS_DEVICE0_ASTATUS_DEVICE_BLOCKED:
4678 desc = "device blocked";
4679 break;
4680 case MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED:
4681 case MPI2_SAS_DEVICE0_ASTATUS_SIF_UNKNOWN:
4682 case MPI2_SAS_DEVICE0_ASTATUS_SIF_AFFILIATION_CONFLICT:
4683 case MPI2_SAS_DEVICE0_ASTATUS_SIF_DIAG:
4684 case MPI2_SAS_DEVICE0_ASTATUS_SIF_IDENTIFICATION:
4685 case MPI2_SAS_DEVICE0_ASTATUS_SIF_CHECK_POWER:
4686 case MPI2_SAS_DEVICE0_ASTATUS_SIF_PIO_SN:
4687 case MPI2_SAS_DEVICE0_ASTATUS_SIF_MDMA_SN:
4688 case MPI2_SAS_DEVICE0_ASTATUS_SIF_UDMA_SN:
4689 case MPI2_SAS_DEVICE0_ASTATUS_SIF_ZONING_VIOLATION:
4690 case MPI2_SAS_DEVICE0_ASTATUS_SIF_NOT_ADDRESSABLE:
4691 case MPI2_SAS_DEVICE0_ASTATUS_SIF_MAX:
4692 desc = "sata initialization failed";
4693 break;
4694 default:
4695 desc = "unknown";
4696 break;
4697 }
4698
4699 if (!rc)
4700 return 0;
4701
4702 pr_err(MPT3SAS_FMT
4703 "discovery errors(%s): sas_address(0x%016llx), handle(0x%04x)\n",
4704 ioc->name, desc, (unsigned long long)sas_address, handle);
4705 return rc;
4706}
4707
4708/**
4709 * _scsih_check_device - checking device responsiveness
4710 * @ioc: per adapter object
4711 * @parent_sas_address: sas address of parent expander or sas host
4712 * @handle: attached device handle
4713 * @phy_numberv: phy number
4714 * @link_rate: new link rate
4715 *
4716 * Returns nothing.
4717 */
4718static void
4719_scsih_check_device(struct MPT3SAS_ADAPTER *ioc,
4720 u64 parent_sas_address, u16 handle, u8 phy_number, u8 link_rate)
4721{
4722 Mpi2ConfigReply_t mpi_reply;
4723 Mpi2SasDevicePage0_t sas_device_pg0;
4724 struct _sas_device *sas_device;
4725 u32 ioc_status;
4726 unsigned long flags;
4727 u64 sas_address;
4728 struct scsi_target *starget;
4729 struct MPT3SAS_TARGET *sas_target_priv_data;
4730 u32 device_info;
4731
4732
4733 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
4734 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle)))
4735 return;
4736
4737 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
4738 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
4739 return;
4740
4741 /* wide port handling ~ we need only handle device once for the phy that
4742 * is matched in sas device page zero
4743 */
4744 if (phy_number != sas_device_pg0.PhyNum)
4745 return;
4746
4747 /* check if this is end device */
4748 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
4749 if (!(_scsih_is_end_device(device_info)))
4750 return;
4751
4752 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4753 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4754 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
4755 sas_address);
4756
4757 if (!sas_device) {
4758 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4759 return;
4760 }
4761
4762 if (unlikely(sas_device->handle != handle)) {
4763 starget = sas_device->starget;
4764 sas_target_priv_data = starget->hostdata;
4765 starget_printk(KERN_INFO, starget,
4766 "handle changed from(0x%04x) to (0x%04x)!!!\n",
4767 sas_device->handle, handle);
4768 sas_target_priv_data->handle = handle;
4769 sas_device->handle = handle;
4770 }
4771
4772 /* check if device is present */
4773 if (!(le16_to_cpu(sas_device_pg0.Flags) &
4774 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
4775 pr_err(MPT3SAS_FMT
4776 "device is not present handle(0x%04x), flags!!!\n",
4777 ioc->name, handle);
4778 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4779 return;
4780 }
4781
4782 /* check if there were any issues with discovery */
4783 if (_scsih_check_access_status(ioc, sas_address, handle,
4784 sas_device_pg0.AccessStatus)) {
4785 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4786 return;
4787 }
4788
4789 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4790 _scsih_ublock_io_device(ioc, sas_address);
4791
4792}
4793
4794/**
4795 * _scsih_add_device - creating sas device object
4796 * @ioc: per adapter object
4797 * @handle: sas device handle
4798 * @phy_num: phy number end device attached to
4799 * @is_pd: is this hidden raid component
4800 *
4801 * Creating end device object, stored in ioc->sas_device_list.
4802 *
4803 * Returns 0 for success, non-zero for failure.
4804 */
4805static int
4806_scsih_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle, u8 phy_num,
4807 u8 is_pd)
4808{
4809 Mpi2ConfigReply_t mpi_reply;
4810 Mpi2SasDevicePage0_t sas_device_pg0;
4811 Mpi2SasEnclosurePage0_t enclosure_pg0;
4812 struct _sas_device *sas_device;
4813 u32 ioc_status;
4814 u64 sas_address;
4815 u32 device_info;
4816 unsigned long flags;
4817
4818 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
4819 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
4820 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4821 ioc->name, __FILE__, __LINE__, __func__);
4822 return -1;
4823 }
4824
4825 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4826 MPI2_IOCSTATUS_MASK;
4827 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4828 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4829 ioc->name, __FILE__, __LINE__, __func__);
4830 return -1;
4831 }
4832
4833 /* check if this is end device */
4834 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
4835 if (!(_scsih_is_end_device(device_info)))
4836 return -1;
4837 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4838
4839 /* check if device is present */
4840 if (!(le16_to_cpu(sas_device_pg0.Flags) &
4841 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
4842 pr_err(MPT3SAS_FMT "device is not present handle(0x04%x)!!!\n",
4843 ioc->name, handle);
4844 return -1;
4845 }
4846
4847 /* check if there were any issues with discovery */
4848 if (_scsih_check_access_status(ioc, sas_address, handle,
4849 sas_device_pg0.AccessStatus))
4850 return -1;
4851
4852 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4853 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
4854 sas_address);
4855 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4856
4857 if (sas_device)
4858 return -1;
4859
4860 sas_device = kzalloc(sizeof(struct _sas_device),
4861 GFP_KERNEL);
4862 if (!sas_device) {
4863 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4864 ioc->name, __FILE__, __LINE__, __func__);
4865 return 0;
4866 }
4867
4868 sas_device->handle = handle;
4869 if (_scsih_get_sas_address(ioc,
4870 le16_to_cpu(sas_device_pg0.ParentDevHandle),
4871 &sas_device->sas_address_parent) != 0)
4872 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4873 ioc->name, __FILE__, __LINE__, __func__);
4874 sas_device->enclosure_handle =
4875 le16_to_cpu(sas_device_pg0.EnclosureHandle);
4876 sas_device->slot =
4877 le16_to_cpu(sas_device_pg0.Slot);
4878 sas_device->device_info = device_info;
4879 sas_device->sas_address = sas_address;
4880 sas_device->phy = sas_device_pg0.PhyNum;
4881 sas_device->fast_path = (le16_to_cpu(sas_device_pg0.Flags) &
4882 MPI25_SAS_DEVICE0_FLAGS_FAST_PATH_CAPABLE) ? 1 : 0;
4883
4884 /* get enclosure_logical_id */
4885 if (sas_device->enclosure_handle && !(mpt3sas_config_get_enclosure_pg0(
4886 ioc, &mpi_reply, &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
4887 sas_device->enclosure_handle)))
4888 sas_device->enclosure_logical_id =
4889 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
4890
4891 /* get device name */
4892 sas_device->device_name = le64_to_cpu(sas_device_pg0.DeviceName);
4893
4894 if (ioc->wait_for_discovery_to_complete)
4895 _scsih_sas_device_init_add(ioc, sas_device);
4896 else
4897 _scsih_sas_device_add(ioc, sas_device);
4898
4899 return 0;
4900}
4901
4902/**
4903 * _scsih_remove_device - removing sas device object
4904 * @ioc: per adapter object
4905 * @sas_device_delete: the sas_device object
4906 *
4907 * Return nothing.
4908 */
4909static void
4910_scsih_remove_device(struct MPT3SAS_ADAPTER *ioc,
4911 struct _sas_device *sas_device)
4912{
4913 struct MPT3SAS_TARGET *sas_target_priv_data;
4914
4915
4916 dewtprintk(ioc, pr_info(MPT3SAS_FMT
4917 "%s: enter: handle(0x%04x), sas_addr(0x%016llx)\n",
4918 ioc->name, __func__,
4919 sas_device->handle, (unsigned long long)
4920 sas_device->sas_address));
4921
4922 if (sas_device->starget && sas_device->starget->hostdata) {
4923 sas_target_priv_data = sas_device->starget->hostdata;
4924 sas_target_priv_data->deleted = 1;
4925 _scsih_ublock_io_device(ioc, sas_device->sas_address);
4926 sas_target_priv_data->handle =
4927 MPT3SAS_INVALID_DEVICE_HANDLE;
4928 }
4929 mpt3sas_transport_port_remove(ioc,
4930 sas_device->sas_address,
4931 sas_device->sas_address_parent);
4932
4933 pr_info(MPT3SAS_FMT
4934 "removing handle(0x%04x), sas_addr(0x%016llx)\n",
4935 ioc->name, sas_device->handle,
4936 (unsigned long long) sas_device->sas_address);
4937
4938 dewtprintk(ioc, pr_info(MPT3SAS_FMT
4939 "%s: exit: handle(0x%04x), sas_addr(0x%016llx)\n",
4940 ioc->name, __func__,
4941 sas_device->handle, (unsigned long long)
4942 sas_device->sas_address));
4943
4944 kfree(sas_device);
4945}
4946
4947#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
4948/**
4949 * _scsih_sas_topology_change_event_debug - debug for topology event
4950 * @ioc: per adapter object
4951 * @event_data: event data payload
4952 * Context: user.
4953 */
4954static void
4955_scsih_sas_topology_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
4956 Mpi2EventDataSasTopologyChangeList_t *event_data)
4957{
4958 int i;
4959 u16 handle;
4960 u16 reason_code;
4961 u8 phy_number;
4962 char *status_str = NULL;
4963 u8 link_rate, prev_link_rate;
4964
4965 switch (event_data->ExpStatus) {
4966 case MPI2_EVENT_SAS_TOPO_ES_ADDED:
4967 status_str = "add";
4968 break;
4969 case MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING:
4970 status_str = "remove";
4971 break;
4972 case MPI2_EVENT_SAS_TOPO_ES_RESPONDING:
4973 case 0:
4974 status_str = "responding";
4975 break;
4976 case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
4977 status_str = "remove delay";
4978 break;
4979 default:
4980 status_str = "unknown status";
4981 break;
4982 }
4983 pr_info(MPT3SAS_FMT "sas topology change: (%s)\n",
4984 ioc->name, status_str);
4985 pr_info("\thandle(0x%04x), enclosure_handle(0x%04x) " \
4986 "start_phy(%02d), count(%d)\n",
4987 le16_to_cpu(event_data->ExpanderDevHandle),
4988 le16_to_cpu(event_data->EnclosureHandle),
4989 event_data->StartPhyNum, event_data->NumEntries);
4990 for (i = 0; i < event_data->NumEntries; i++) {
4991 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
4992 if (!handle)
4993 continue;
4994 phy_number = event_data->StartPhyNum + i;
4995 reason_code = event_data->PHY[i].PhyStatus &
4996 MPI2_EVENT_SAS_TOPO_RC_MASK;
4997 switch (reason_code) {
4998 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
4999 status_str = "target add";
5000 break;
5001 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
5002 status_str = "target remove";
5003 break;
5004 case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
5005 status_str = "delay target remove";
5006 break;
5007 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
5008 status_str = "link rate change";
5009 break;
5010 case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
5011 status_str = "target responding";
5012 break;
5013 default:
5014 status_str = "unknown";
5015 break;
5016 }
5017 link_rate = event_data->PHY[i].LinkRate >> 4;
5018 prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
5019 pr_info("\tphy(%02d), attached_handle(0x%04x): %s:" \
5020 " link rate: new(0x%02x), old(0x%02x)\n", phy_number,
5021 handle, status_str, link_rate, prev_link_rate);
5022
5023 }
5024}
5025#endif
5026
5027/**
5028 * _scsih_sas_topology_change_event - handle topology changes
5029 * @ioc: per adapter object
5030 * @fw_event: The fw_event_work object
5031 * Context: user.
5032 *
5033 */
5034static int
5035_scsih_sas_topology_change_event(struct MPT3SAS_ADAPTER *ioc,
5036 struct fw_event_work *fw_event)
5037{
5038 int i;
5039 u16 parent_handle, handle;
5040 u16 reason_code;
5041 u8 phy_number, max_phys;
5042 struct _sas_node *sas_expander;
5043 u64 sas_address;
5044 unsigned long flags;
5045 u8 link_rate, prev_link_rate;
35b62362
JL		 5046 Mpi2EventDataSasTopologyChangeList_t *event_data =
5047 (Mpi2EventDataSasTopologyChangeList_t *)
5048 fw_event->event_data;
f92363d1
SR		 5049
5050#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
5051 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5052 _scsih_sas_topology_change_event_debug(ioc, event_data);
5053#endif
5054
5055 if (ioc->shost_recovery || ioc->remove_host || ioc->pci_error_recovery)
5056 return 0;
5057
5058 if (!ioc->sas_hba.num_phys)
5059 _scsih_sas_host_add(ioc);
5060 else
5061 _scsih_sas_host_refresh(ioc);
5062
5063 if (fw_event->ignore) {
5064 dewtprintk(ioc, pr_info(MPT3SAS_FMT
5065 "ignoring expander event\n", ioc->name));
5066 return 0;
5067 }
5068
5069 parent_handle = le16_to_cpu(event_data->ExpanderDevHandle);
5070
5071 /* handle expander add */
5072 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_ADDED)
5073 if (_scsih_expander_add(ioc, parent_handle) != 0)
5074 return 0;
5075
5076 spin_lock_irqsave(&ioc->sas_node_lock, flags);
5077 sas_expander = mpt3sas_scsih_expander_find_by_handle(ioc,
5078 parent_handle);
5079 if (sas_expander) {
5080 sas_address = sas_expander->sas_address;
5081 max_phys = sas_expander->num_phys;
5082 } else if (parent_handle < ioc->sas_hba.num_phys) {
5083 sas_address = ioc->sas_hba.sas_address;
5084 max_phys = ioc->sas_hba.num_phys;
5085 } else {
5086 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
5087 return 0;
5088 }
5089 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
5090
5091 /* handle siblings events */
5092 for (i = 0; i < event_data->NumEntries; i++) {
5093 if (fw_event->ignore) {
5094 dewtprintk(ioc, pr_info(MPT3SAS_FMT
5095 "ignoring expander event\n", ioc->name));
5096 return 0;
5097 }
5098 if (ioc->remove_host || ioc->pci_error_recovery)
5099 return 0;
5100 phy_number = event_data->StartPhyNum + i;
5101 if (phy_number >= max_phys)
5102 continue;
5103 reason_code = event_data->PHY[i].PhyStatus &
5104 MPI2_EVENT_SAS_TOPO_RC_MASK;
5105 if ((event_data->PHY[i].PhyStatus &
5106 MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT) && (reason_code !=
5107 MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING))
5108 continue;
5109 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
5110 if (!handle)
5111 continue;
5112 link_rate = event_data->PHY[i].LinkRate >> 4;
5113 prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
5114 switch (reason_code) {
5115 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
5116
5117 if (ioc->shost_recovery)
5118 break;
5119
5120 if (link_rate == prev_link_rate)
5121 break;
5122
5123 mpt3sas_transport_update_links(ioc, sas_address,
5124 handle, phy_number, link_rate);
5125
5126 if (link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
5127 break;
5128
5129 _scsih_check_device(ioc, sas_address, handle,
5130 phy_number, link_rate);
5131
5132
5133 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
5134
5135 if (ioc->shost_recovery)
5136 break;
5137
5138 mpt3sas_transport_update_links(ioc, sas_address,
5139 handle, phy_number, link_rate);
5140
5141 _scsih_add_device(ioc, handle, phy_number, 0);
5142
5143 break;
5144 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
5145
5146 _scsih_device_remove_by_handle(ioc, handle);
5147 break;
5148 }
5149 }
5150
5151 /* handle expander removal */
5152 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING &&
5153 sas_expander)
5154 mpt3sas_expander_remove(ioc, sas_address);
5155
5156 return 0;
5157}
5158
5159#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
5160/**
5161 * _scsih_sas_device_status_change_event_debug - debug for device event
5162 * @event_data: event data payload
5163 * Context: user.
5164 *
5165 * Return nothing.
5166 */
5167static void
5168_scsih_sas_device_status_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
5169 Mpi2EventDataSasDeviceStatusChange_t *event_data)
5170{
5171 char *reason_str = NULL;
5172
5173 switch (event_data->ReasonCode) {
5174 case MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA:
5175 reason_str = "smart data";
5176 break;
5177 case MPI2_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED:
5178 reason_str = "unsupported device discovered";
5179 break;
5180 case MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
5181 reason_str = "internal device reset";
5182 break;
5183 case MPI2_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL:
5184 reason_str = "internal task abort";
5185 break;
5186 case MPI2_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL:
5187 reason_str = "internal task abort set";
5188 break;
5189 case MPI2_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL:
5190 reason_str = "internal clear task set";
5191 break;
5192 case MPI2_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL:
5193 reason_str = "internal query task";
5194 break;
5195 case MPI2_EVENT_SAS_DEV_STAT_RC_SATA_INIT_FAILURE:
5196 reason_str = "sata init failure";
5197 break;
5198 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET:
5199 reason_str = "internal device reset complete";
5200 break;
5201 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_TASK_ABORT_INTERNAL:
5202 reason_str = "internal task abort complete";
5203 break;
5204 case MPI2_EVENT_SAS_DEV_STAT_RC_ASYNC_NOTIFICATION:
5205 reason_str = "internal async notification";
5206 break;
5207 case MPI2_EVENT_SAS_DEV_STAT_RC_EXPANDER_REDUCED_FUNCTIONALITY:
5208 reason_str = "expander reduced functionality";
5209 break;
5210 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_EXPANDER_REDUCED_FUNCTIONALITY:
5211 reason_str = "expander reduced functionality complete";
5212 break;
5213 default:
5214 reason_str = "unknown reason";
5215 break;
5216 }
5217 pr_info(MPT3SAS_FMT "device status change: (%s)\n"
5218 "\thandle(0x%04x), sas address(0x%016llx), tag(%d)",
5219 ioc->name, reason_str, le16_to_cpu(event_data->DevHandle),
5220 (unsigned long long)le64_to_cpu(event_data->SASAddress),
5221 le16_to_cpu(event_data->TaskTag));
5222 if (event_data->ReasonCode == MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA)
5223 pr_info(MPT3SAS_FMT ", ASC(0x%x), ASCQ(0x%x)\n", ioc->name,
5224 event_data->ASC, event_data->ASCQ);
5225 pr_info("\n");
5226}
5227#endif
5228
5229/**
5230 * _scsih_sas_device_status_change_event - handle device status change
5231 * @ioc: per adapter object
5232 * @fw_event: The fw_event_work object
5233 * Context: user.
5234 *
5235 * Return nothing.
5236 */
5237static void
5238_scsih_sas_device_status_change_event(struct MPT3SAS_ADAPTER *ioc,
5239 struct fw_event_work *fw_event)
5240{
5241 struct MPT3SAS_TARGET *target_priv_data;
5242 struct _sas_device *sas_device;
5243 u64 sas_address;
5244 unsigned long flags;
5245 Mpi2EventDataSasDeviceStatusChange_t *event_data =
35b62362
JL		 5246 (Mpi2EventDataSasDeviceStatusChange_t *)
5247 fw_event->event_data;
f92363d1
SR		 5248
5249#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
5250 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5251 _scsih_sas_device_status_change_event_debug(ioc,
5252 event_data);
5253#endif
5254
5255 /* In MPI Revision K (0xC), the internal device reset complete was
5256 * implemented, so avoid setting tm_busy flag for older firmware.
5257 */
5258 if ((ioc->facts.HeaderVersion >> 8) < 0xC)
5259 return;
5260
5261 if (event_data->ReasonCode !=
5262 MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET &&
5263 event_data->ReasonCode !=
5264 MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET)
5265 return;
5266
5267 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5268 sas_address = le64_to_cpu(event_data->SASAddress);
5269 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
5270 sas_address);
5271
5272 if (!sas_device || !sas_device->starget) {
5273 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5274 return;
5275 }
5276
5277 target_priv_data = sas_device->starget->hostdata;
5278 if (!target_priv_data) {
5279 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5280 return;
5281 }
5282
5283 if (event_data->ReasonCode ==
5284 MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET)
5285 target_priv_data->tm_busy = 1;
5286 else
5287 target_priv_data->tm_busy = 0;
5288 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5289}
5290
5291#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
5292/**
5293 * _scsih_sas_enclosure_dev_status_change_event_debug - debug for enclosure
5294 * event
5295 * @ioc: per adapter object
5296 * @event_data: event data payload
5297 * Context: user.
5298 *
5299 * Return nothing.
5300 */
5301static void
5302_scsih_sas_enclosure_dev_status_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
5303 Mpi2EventDataSasEnclDevStatusChange_t *event_data)
5304{
5305 char *reason_str = NULL;
5306
5307 switch (event_data->ReasonCode) {
5308 case MPI2_EVENT_SAS_ENCL_RC_ADDED:
5309 reason_str = "enclosure add";
5310 break;
5311 case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING:
5312 reason_str = "enclosure remove";
5313 break;
5314 default:
5315 reason_str = "unknown reason";
5316 break;
5317 }
5318
5319 pr_info(MPT3SAS_FMT "enclosure status change: (%s)\n"
5320 "\thandle(0x%04x), enclosure logical id(0x%016llx)"
5321 " number slots(%d)\n", ioc->name, reason_str,
5322 le16_to_cpu(event_data->EnclosureHandle),
5323 (unsigned long long)le64_to_cpu(event_data->EnclosureLogicalID),
5324 le16_to_cpu(event_data->StartSlot));
5325}
5326#endif
5327
5328/**
5329 * _scsih_sas_enclosure_dev_status_change_event - handle enclosure events
5330 * @ioc: per adapter object
5331 * @fw_event: The fw_event_work object
5332 * Context: user.
5333 *
5334 * Return nothing.
5335 */
5336static void
5337_scsih_sas_enclosure_dev_status_change_event(struct MPT3SAS_ADAPTER *ioc,
5338 struct fw_event_work *fw_event)
5339{
5340#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
5341 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5342 _scsih_sas_enclosure_dev_status_change_event_debug(ioc,
35b62362 5343 (Mpi2EventDataSasEnclDevStatusChange_t *)
f92363d1
SR		 5344 fw_event->event_data);
5345#endif
5346}
5347
5348/**
5349 * _scsih_sas_broadcast_primitive_event - handle broadcast events
5350 * @ioc: per adapter object
5351 * @fw_event: The fw_event_work object
5352 * Context: user.
5353 *
5354 * Return nothing.
5355 */
5356static void
5357_scsih_sas_broadcast_primitive_event(struct MPT3SAS_ADAPTER *ioc,
5358 struct fw_event_work *fw_event)
5359{
5360 struct scsi_cmnd *scmd;
5361 struct scsi_device *sdev;
5362 u16 smid, handle;
5363 u32 lun;
5364 struct MPT3SAS_DEVICE *sas_device_priv_data;
5365 u32 termination_count;
5366 u32 query_count;
5367 Mpi2SCSITaskManagementReply_t *mpi_reply;
35b62362
JL		 5368 Mpi2EventDataSasBroadcastPrimitive_t *event_data =
5369 (Mpi2EventDataSasBroadcastPrimitive_t *)
5370 fw_event->event_data;
f92363d1
SR		 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,
c62e46de 5428 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30,
f92363d1
SR		 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,
c62e46de 5470 TM_MUTEX_OFF);
f92363d1
SR		 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{
35b62362
JL		 5522 Mpi2EventDataSasDiscovery_t *event_data =
5523 (Mpi2EventDataSasDiscovery_t *) fw_event->event_data;
f92363d1
SR		 5524
5525#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
5526 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) {
5527 pr_info(MPT3SAS_FMT "discovery event: (%s)", ioc->name,
5528 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
5529 "start" : "stop");
5530 if (event_data->DiscoveryStatus)
5531 pr_info("discovery_status(0x%08x)",
5532 le32_to_cpu(event_data->DiscoveryStatus));
5533 pr_info("\n");
5534 }
5535#endif
5536
5537 if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED &&
5538 !ioc->sas_hba.num_phys) {
5539 if (disable_discovery > 0 && ioc->shost_recovery) {
5540 /* Wait for the reset to complete */
5541 while (ioc->shost_recovery)
5542 ssleep(1);
5543 }
5544 _scsih_sas_host_add(ioc);
5545 }
5546}
5547
5548/**
5549 * _scsih_ir_fastpath - turn on fastpath for IR physdisk
5550 * @ioc: per adapter object
5551 * @handle: device handle for physical disk
5552 * @phys_disk_num: physical disk number
5553 *
5554 * Return 0 for success, else failure.
5555 */
5556static int
5557_scsih_ir_fastpath(struct MPT3SAS_ADAPTER *ioc, u16 handle, u8 phys_disk_num)
5558{
5559 Mpi2RaidActionRequest_t *mpi_request;
5560 Mpi2RaidActionReply_t *mpi_reply;
5561 u16 smid;
5562 u8 issue_reset = 0;
5563 int rc = 0;
5564 u16 ioc_status;
5565 u32 log_info;
5566
5567
5568 mutex_lock(&ioc->scsih_cmds.mutex);
5569
5570 if (ioc->scsih_cmds.status != MPT3_CMD_NOT_USED) {
5571 pr_err(MPT3SAS_FMT "%s: scsih_cmd in use\n",
5572 ioc->name, __func__);
5573 rc = -EAGAIN;
5574 goto out;
5575 }
5576 ioc->scsih_cmds.status = MPT3_CMD_PENDING;
5577
5578 smid = mpt3sas_base_get_smid(ioc, ioc->scsih_cb_idx);
5579 if (!smid) {
5580 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
5581 ioc->name, __func__);
5582 ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
5583 rc = -EAGAIN;
5584 goto out;
5585 }
5586
5587 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
5588 ioc->scsih_cmds.smid = smid;
5589 memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t));
5590
5591 mpi_request->Function = MPI2_FUNCTION_RAID_ACTION;
5592 mpi_request->Action = MPI2_RAID_ACTION_PHYSDISK_HIDDEN;
5593 mpi_request->PhysDiskNum = phys_disk_num;
5594
5595 dewtprintk(ioc, pr_info(MPT3SAS_FMT "IR RAID_ACTION: turning fast "\
5596 "path on for handle(0x%04x), phys_disk_num (0x%02x)\n", ioc->name,
5597 handle, phys_disk_num));
5598
5599 init_completion(&ioc->scsih_cmds.done);
5600 mpt3sas_base_put_smid_default(ioc, smid);
5601 wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
5602
5603 if (!(ioc->scsih_cmds.status & MPT3_CMD_COMPLETE)) {
5604 pr_err(MPT3SAS_FMT "%s: timeout\n",
5605 ioc->name, __func__);
5606 if (!(ioc->scsih_cmds.status & MPT3_CMD_RESET))
5607 issue_reset = 1;
5608 rc = -EFAULT;
5609 goto out;
5610 }
5611
5612 if (ioc->scsih_cmds.status & MPT3_CMD_REPLY_VALID) {
5613
5614 mpi_reply = ioc->scsih_cmds.reply;
5615 ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
5616 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
5617 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
5618 else
5619 log_info = 0;
5620 ioc_status &= MPI2_IOCSTATUS_MASK;
5621 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
5622 dewtprintk(ioc, pr_info(MPT3SAS_FMT
5623 "IR RAID_ACTION: failed: ioc_status(0x%04x), "
5624 "loginfo(0x%08x)!!!\n", ioc->name, ioc_status,
5625 log_info));
5626 rc = -EFAULT;
5627 } else
5628 dewtprintk(ioc, pr_info(MPT3SAS_FMT
5629 "IR RAID_ACTION: completed successfully\n",
5630 ioc->name));
5631 }
5632
5633 out:
5634 ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
5635 mutex_unlock(&ioc->scsih_cmds.mutex);
5636
5637 if (issue_reset)
5638 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
5639 FORCE_BIG_HAMMER);
5640 return rc;
5641}
5642
5643/**
5644 * _scsih_reprobe_lun - reprobing lun
5645 * @sdev: scsi device struct
5646 * @no_uld_attach: sdev->no_uld_attach flag setting
5647 *
5648 **/
5649static void
5650_scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach)
5651{
5652 int rc;
5653 sdev->no_uld_attach = no_uld_attach ? 1 : 0;
5654 sdev_printk(KERN_INFO, sdev, "%s raid component\n",
5655 sdev->no_uld_attach ? "hidding" : "exposing");
5656 rc = scsi_device_reprobe(sdev);
5657}
5658
5659/**
5660 * _scsih_sas_volume_add - add new volume
5661 * @ioc: per adapter object
5662 * @element: IR config element data
5663 * Context: user.
5664 *
5665 * Return nothing.
5666 */
5667static void
5668_scsih_sas_volume_add(struct MPT3SAS_ADAPTER *ioc,
5669 Mpi2EventIrConfigElement_t *element)
5670{
5671 struct _raid_device *raid_device;
5672 unsigned long flags;
5673 u64 wwid;
5674 u16 handle = le16_to_cpu(element->VolDevHandle);
5675 int rc;
5676
5677 mpt3sas_config_get_volume_wwid(ioc, handle, &wwid);
5678 if (!wwid) {
5679 pr_err(MPT3SAS_FMT
5680 "failure at %s:%d/%s()!\n", ioc->name,
5681 __FILE__, __LINE__, __func__);
5682 return;
5683 }
5684
5685 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5686 raid_device = _scsih_raid_device_find_by_wwid(ioc, wwid);
5687 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5688
5689 if (raid_device)
5690 return;
5691
5692 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
5693 if (!raid_device) {
5694 pr_err(MPT3SAS_FMT
5695 "failure at %s:%d/%s()!\n", ioc->name,
5696 __FILE__, __LINE__, __func__);
5697 return;
5698 }
5699
5700 raid_device->id = ioc->sas_id++;
5701 raid_device->channel = RAID_CHANNEL;
5702 raid_device->handle = handle;
5703 raid_device->wwid = wwid;
5704 _scsih_raid_device_add(ioc, raid_device);
5705 if (!ioc->wait_for_discovery_to_complete) {
5706 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
5707 raid_device->id, 0);
5708 if (rc)
5709 _scsih_raid_device_remove(ioc, raid_device);
5710 } else {
5711 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5712 _scsih_determine_boot_device(ioc, raid_device, 1);
5713 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5714 }
5715}
5716
5717/**
5718 * _scsih_sas_volume_delete - delete volume
5719 * @ioc: per adapter object
5720 * @handle: volume device handle
5721 * Context: user.
5722 *
5723 * Return nothing.
5724 */
5725static void
5726_scsih_sas_volume_delete(struct MPT3SAS_ADAPTER *ioc, u16 handle)
5727{
5728 struct _raid_device *raid_device;
5729 unsigned long flags;
5730 struct MPT3SAS_TARGET *sas_target_priv_data;
5731 struct scsi_target *starget = NULL;
5732
5733 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5734 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
5735 if (raid_device) {
5736 if (raid_device->starget) {
5737 starget = raid_device->starget;
5738 sas_target_priv_data = starget->hostdata;
5739 sas_target_priv_data->deleted = 1;
5740 }
5741 pr_info(MPT3SAS_FMT "removing handle(0x%04x), wwid(0x%016llx)\n",
5742 ioc->name, raid_device->handle,
5743 (unsigned long long) raid_device->wwid);
5744 list_del(&raid_device->list);
5745 kfree(raid_device);
5746 }
5747 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5748 if (starget)
5749 scsi_remove_target(&starget->dev);
5750}
5751
5752/**
5753 * _scsih_sas_pd_expose - expose pd component to /dev/sdX
5754 * @ioc: per adapter object
5755 * @element: IR config element data
5756 * Context: user.
5757 *
5758 * Return nothing.
5759 */
5760static void
5761_scsih_sas_pd_expose(struct MPT3SAS_ADAPTER *ioc,
5762 Mpi2EventIrConfigElement_t *element)
5763{
5764 struct _sas_device *sas_device;
5765 struct scsi_target *starget = NULL;
5766 struct MPT3SAS_TARGET *sas_target_priv_data;
5767 unsigned long flags;
5768 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5769
5770 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5771 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5772 if (sas_device) {
5773 sas_device->volume_handle = 0;
5774 sas_device->volume_wwid = 0;
5775 clear_bit(handle, ioc->pd_handles);
5776 if (sas_device->starget && sas_device->starget->hostdata) {
5777 starget = sas_device->starget;
5778 sas_target_priv_data = starget->hostdata;
5779 sas_target_priv_data->flags &=
5780 ~MPT_TARGET_FLAGS_RAID_COMPONENT;
5781 }
5782 }
5783 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5784 if (!sas_device)
5785 return;
5786
5787 /* exposing raid component */
5788 if (starget)
5789 starget_for_each_device(starget, NULL, _scsih_reprobe_lun);
5790}
5791
5792/**
5793 * _scsih_sas_pd_hide - hide pd component from /dev/sdX
5794 * @ioc: per adapter object
5795 * @element: IR config element data
5796 * Context: user.
5797 *
5798 * Return nothing.
5799 */
5800static void
5801_scsih_sas_pd_hide(struct MPT3SAS_ADAPTER *ioc,
5802 Mpi2EventIrConfigElement_t *element)
5803{
5804 struct _sas_device *sas_device;
5805 struct scsi_target *starget = NULL;
5806 struct MPT3SAS_TARGET *sas_target_priv_data;
5807 unsigned long flags;
5808 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5809 u16 volume_handle = 0;
5810 u64 volume_wwid = 0;
5811
5812 mpt3sas_config_get_volume_handle(ioc, handle, &volume_handle);
5813 if (volume_handle)
5814 mpt3sas_config_get_volume_wwid(ioc, volume_handle,
5815 &volume_wwid);
5816
5817 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5818 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5819 if (sas_device) {
5820 set_bit(handle, ioc->pd_handles);
5821 if (sas_device->starget && sas_device->starget->hostdata) {
5822 starget = sas_device->starget;
5823 sas_target_priv_data = starget->hostdata;
5824 sas_target_priv_data->flags |=
5825 MPT_TARGET_FLAGS_RAID_COMPONENT;
5826 sas_device->volume_handle = volume_handle;
5827 sas_device->volume_wwid = volume_wwid;
5828 }
5829 }
5830 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5831 if (!sas_device)
5832 return;
5833
5834 /* hiding raid component */
5835 _scsih_ir_fastpath(ioc, handle, element->PhysDiskNum);
5836 if (starget)
5837 starget_for_each_device(starget, (void *)1, _scsih_reprobe_lun);
5838}
5839
5840/**
5841 * _scsih_sas_pd_delete - delete pd component
5842 * @ioc: per adapter object
5843 * @element: IR config element data
5844 * Context: user.
5845 *
5846 * Return nothing.
5847 */
5848static void
5849_scsih_sas_pd_delete(struct MPT3SAS_ADAPTER *ioc,
5850 Mpi2EventIrConfigElement_t *element)
5851{
5852 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5853
5854 _scsih_device_remove_by_handle(ioc, handle);
5855}
5856
5857/**
5858 * _scsih_sas_pd_add - remove pd component
5859 * @ioc: per adapter object
5860 * @element: IR config element data
5861 * Context: user.
5862 *
5863 * Return nothing.
5864 */
5865static void
5866_scsih_sas_pd_add(struct MPT3SAS_ADAPTER *ioc,
5867 Mpi2EventIrConfigElement_t *element)
5868{
5869 struct _sas_device *sas_device;
5870 unsigned long flags;
5871 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5872 Mpi2ConfigReply_t mpi_reply;
5873 Mpi2SasDevicePage0_t sas_device_pg0;
5874 u32 ioc_status;
5875 u64 sas_address;
5876 u16 parent_handle;
5877
5878 set_bit(handle, ioc->pd_handles);
5879
5880 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5881 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5882 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5883 if (sas_device) {
5884 _scsih_ir_fastpath(ioc, handle, element->PhysDiskNum);
5885 return;
5886 }
5887
5888 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
5889 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
5890 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
5891 ioc->name, __FILE__, __LINE__, __func__);
5892 return;
5893 }
5894
5895 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5896 MPI2_IOCSTATUS_MASK;
5897 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
5898 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
5899 ioc->name, __FILE__, __LINE__, __func__);
5900 return;
5901 }
5902
5903 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
5904 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
5905 mpt3sas_transport_update_links(ioc, sas_address, handle,
5906 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
5907
5908 _scsih_ir_fastpath(ioc, handle, element->PhysDiskNum);
5909 _scsih_add_device(ioc, handle, 0, 1);
5910}
5911
5912#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
5913/**
5914 * _scsih_sas_ir_config_change_event_debug - debug for IR Config Change events
5915 * @ioc: per adapter object
5916 * @event_data: event data payload
5917 * Context: user.
5918 *
5919 * Return nothing.
5920 */
5921static void
5922_scsih_sas_ir_config_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
5923 Mpi2EventDataIrConfigChangeList_t *event_data)
5924{
5925 Mpi2EventIrConfigElement_t *element;
5926 u8 element_type;
5927 int i;
5928 char *reason_str = NULL, *element_str = NULL;
5929
5930 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
5931
5932 pr_info(MPT3SAS_FMT "raid config change: (%s), elements(%d)\n",
5933 ioc->name, (le32_to_cpu(event_data->Flags) &
5934 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ?
5935 "foreign" : "native", event_data->NumElements);
5936 for (i = 0; i < event_data->NumElements; i++, element++) {
5937 switch (element->ReasonCode) {
5938 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
5939 reason_str = "add";
5940 break;
5941 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
5942 reason_str = "remove";
5943 break;
5944 case MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE:
5945 reason_str = "no change";
5946 break;
5947 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
5948 reason_str = "hide";
5949 break;
5950 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
5951 reason_str = "unhide";
5952 break;
5953 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
5954 reason_str = "volume_created";
5955 break;
5956 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
5957 reason_str = "volume_deleted";
5958 break;
5959 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
5960 reason_str = "pd_created";
5961 break;
5962 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
5963 reason_str = "pd_deleted";
5964 break;
5965 default:
5966 reason_str = "unknown reason";
5967 break;
5968 }
5969 element_type = le16_to_cpu(element->ElementFlags) &
5970 MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
5971 switch (element_type) {
5972 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT:
5973 element_str = "volume";
5974 break;
5975 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT:
5976 element_str = "phys disk";
5977 break;
5978 case MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT:
5979 element_str = "hot spare";
5980 break;
5981 default:
5982 element_str = "unknown element";
5983 break;
5984 }
5985 pr_info("\t(%s:%s), vol handle(0x%04x), " \
5986 "pd handle(0x%04x), pd num(0x%02x)\n", element_str,
5987 reason_str, le16_to_cpu(element->VolDevHandle),
5988 le16_to_cpu(element->PhysDiskDevHandle),
5989 element->PhysDiskNum);
5990 }
5991}
5992#endif
5993
5994/**
5995 * _scsih_sas_ir_config_change_event - handle ir configuration change events
5996 * @ioc: per adapter object
5997 * @fw_event: The fw_event_work object
5998 * Context: user.
5999 *
6000 * Return nothing.
6001 */
6002static void
6003_scsih_sas_ir_config_change_event(struct MPT3SAS_ADAPTER *ioc,
6004 struct fw_event_work *fw_event)
6005{
6006 Mpi2EventIrConfigElement_t *element;
6007 int i;
6008 u8 foreign_config;
35b62362
JL		 6009 Mpi2EventDataIrConfigChangeList_t *event_data =
6010 (Mpi2EventDataIrConfigChangeList_t *)
6011 fw_event->event_data;
f92363d1
SR		 6012
6013#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
6014 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
6015 _scsih_sas_ir_config_change_event_debug(ioc, event_data);
6016
6017#endif
6018
6019 foreign_config = (le32_to_cpu(event_data->Flags) &
6020 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
6021
6022 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
6023 if (ioc->shost_recovery) {
6024
6025 for (i = 0; i < event_data->NumElements; i++, element++) {
6026 if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_HIDE)
6027 _scsih_ir_fastpath(ioc,
6028 le16_to_cpu(element->PhysDiskDevHandle),
6029 element->PhysDiskNum);
6030 }
6031 return;
6032 }
6033 for (i = 0; i < event_data->NumElements; i++, element++) {
6034
6035 switch (element->ReasonCode) {
6036 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
6037 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
6038 if (!foreign_config)
6039 _scsih_sas_volume_add(ioc, element);
6040 break;
6041 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
6042 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
6043 if (!foreign_config)
6044 _scsih_sas_volume_delete(ioc,
6045 le16_to_cpu(element->VolDevHandle));
6046 break;
6047 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
6048 _scsih_sas_pd_hide(ioc, element);
6049 break;
6050 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
6051 _scsih_sas_pd_expose(ioc, element);
6052 break;
6053 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
6054 _scsih_sas_pd_add(ioc, element);
6055 break;
6056 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
6057 _scsih_sas_pd_delete(ioc, element);
6058 break;
6059 }
6060 }
6061}
6062
6063/**
6064 * _scsih_sas_ir_volume_event - IR volume event
6065 * @ioc: per adapter object
6066 * @fw_event: The fw_event_work object
6067 * Context: user.
6068 *
6069 * Return nothing.
6070 */
6071static void
6072_scsih_sas_ir_volume_event(struct MPT3SAS_ADAPTER *ioc,
6073 struct fw_event_work *fw_event)
6074{
6075 u64 wwid;
6076 unsigned long flags;
6077 struct _raid_device *raid_device;
6078 u16 handle;
6079 u32 state;
6080 int rc;
35b62362
JL		 6081 Mpi2EventDataIrVolume_t *event_data =
6082 (Mpi2EventDataIrVolume_t *) fw_event->event_data;
f92363d1
SR		 6083
6084 if (ioc->shost_recovery)
6085 return;
6086
6087 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
6088 return;
6089
6090 handle = le16_to_cpu(event_data->VolDevHandle);
6091 state = le32_to_cpu(event_data->NewValue);
6092 dewtprintk(ioc, pr_info(MPT3SAS_FMT
6093 "%s: handle(0x%04x), old(0x%08x), new(0x%08x)\n",
6094 ioc->name, __func__, handle,
6095 le32_to_cpu(event_data->PreviousValue), state));
6096 switch (state) {
6097 case MPI2_RAID_VOL_STATE_MISSING:
6098 case MPI2_RAID_VOL_STATE_FAILED:
6099 _scsih_sas_volume_delete(ioc, handle);
6100 break;
6101
6102 case MPI2_RAID_VOL_STATE_ONLINE:
6103 case MPI2_RAID_VOL_STATE_DEGRADED:
6104 case MPI2_RAID_VOL_STATE_OPTIMAL:
6105
6106 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6107 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
6108 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6109
6110 if (raid_device)
6111 break;
6112
6113 mpt3sas_config_get_volume_wwid(ioc, handle, &wwid);
6114 if (!wwid) {
6115 pr_err(MPT3SAS_FMT
6116 "failure at %s:%d/%s()!\n", ioc->name,
6117 __FILE__, __LINE__, __func__);
6118 break;
6119 }
6120
6121 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
6122 if (!raid_device) {
6123 pr_err(MPT3SAS_FMT
6124 "failure at %s:%d/%s()!\n", ioc->name,
6125 __FILE__, __LINE__, __func__);
6126 break;
6127 }
6128
6129 raid_device->id = ioc->sas_id++;
6130 raid_device->channel = RAID_CHANNEL;
6131 raid_device->handle = handle;
6132 raid_device->wwid = wwid;
6133 _scsih_raid_device_add(ioc, raid_device);
6134 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
6135 raid_device->id, 0);
6136 if (rc)
6137 _scsih_raid_device_remove(ioc, raid_device);
6138 break;
6139
6140 case MPI2_RAID_VOL_STATE_INITIALIZING:
6141 default:
6142 break;
6143 }
6144}
6145
6146/**
6147 * _scsih_sas_ir_physical_disk_event - PD event
6148 * @ioc: per adapter object
6149 * @fw_event: The fw_event_work object
6150 * Context: user.
6151 *
6152 * Return nothing.
6153 */
6154static void
6155_scsih_sas_ir_physical_disk_event(struct MPT3SAS_ADAPTER *ioc,
6156 struct fw_event_work *fw_event)
6157{
6158 u16 handle, parent_handle;
6159 u32 state;
6160 struct _sas_device *sas_device;
6161 unsigned long flags;
6162 Mpi2ConfigReply_t mpi_reply;
6163 Mpi2SasDevicePage0_t sas_device_pg0;
6164 u32 ioc_status;
35b62362
JL		 6165 Mpi2EventDataIrPhysicalDisk_t *event_data =
6166 (Mpi2EventDataIrPhysicalDisk_t *) fw_event->event_data;
f92363d1
SR		 6167 u64 sas_address;
6168
6169 if (ioc->shost_recovery)
6170 return;
6171
6172 if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED)
6173 return;
6174
6175 handle = le16_to_cpu(event_data->PhysDiskDevHandle);
6176 state = le32_to_cpu(event_data->NewValue);
6177
6178 dewtprintk(ioc, pr_info(MPT3SAS_FMT
6179 "%s: handle(0x%04x), old(0x%08x), new(0x%08x)\n",
6180 ioc->name, __func__, handle,
6181 le32_to_cpu(event_data->PreviousValue), state));
6182 switch (state) {
6183 case MPI2_RAID_PD_STATE_ONLINE:
6184 case MPI2_RAID_PD_STATE_DEGRADED:
6185 case MPI2_RAID_PD_STATE_REBUILDING:
6186 case MPI2_RAID_PD_STATE_OPTIMAL:
6187 case MPI2_RAID_PD_STATE_HOT_SPARE:
6188
6189 set_bit(handle, ioc->pd_handles);
6190 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6191 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
6192 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6193
6194 if (sas_device)
6195 return;
6196
6197 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
6198 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
6199 handle))) {
6200 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
6201 ioc->name, __FILE__, __LINE__, __func__);
6202 return;
6203 }
6204
6205 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6206 MPI2_IOCSTATUS_MASK;
6207 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6208 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
6209 ioc->name, __FILE__, __LINE__, __func__);
6210 return;
6211 }
6212
6213 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
6214 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
6215 mpt3sas_transport_update_links(ioc, sas_address, handle,
6216 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
6217
6218 _scsih_add_device(ioc, handle, 0, 1);
6219
6220 break;
6221
6222 case MPI2_RAID_PD_STATE_OFFLINE:
6223 case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
6224 case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
6225 default:
6226 break;
6227 }
6228}
6229
6230#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
6231/**
6232 * _scsih_sas_ir_operation_status_event_debug - debug for IR op event
6233 * @ioc: per adapter object
6234 * @event_data: event data payload
6235 * Context: user.
6236 *
6237 * Return nothing.
6238 */
6239static void
6240_scsih_sas_ir_operation_status_event_debug(struct MPT3SAS_ADAPTER *ioc,
6241 Mpi2EventDataIrOperationStatus_t *event_data)
6242{
6243 char *reason_str = NULL;
6244
6245 switch (event_data->RAIDOperation) {
6246 case MPI2_EVENT_IR_RAIDOP_RESYNC:
6247 reason_str = "resync";
6248 break;
6249 case MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION:
6250 reason_str = "online capacity expansion";
6251 break;
6252 case MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK:
6253 reason_str = "consistency check";
6254 break;
6255 case MPI2_EVENT_IR_RAIDOP_BACKGROUND_INIT:
6256 reason_str = "background init";
6257 break;
6258 case MPI2_EVENT_IR_RAIDOP_MAKE_DATA_CONSISTENT:
6259 reason_str = "make data consistent";
6260 break;
6261 }
6262
6263 if (!reason_str)
6264 return;
6265
6266 pr_info(MPT3SAS_FMT "raid operational status: (%s)" \
6267 "\thandle(0x%04x), percent complete(%d)\n",
6268 ioc->name, reason_str,
6269 le16_to_cpu(event_data->VolDevHandle),
6270 event_data->PercentComplete);
6271}
6272#endif
6273
6274/**
6275 * _scsih_sas_ir_operation_status_event - handle RAID operation events
6276 * @ioc: per adapter object
6277 * @fw_event: The fw_event_work object
6278 * Context: user.
6279 *
6280 * Return nothing.
6281 */
6282static void
6283_scsih_sas_ir_operation_status_event(struct MPT3SAS_ADAPTER *ioc,
6284 struct fw_event_work *fw_event)
6285{
35b62362
JL		 6286 Mpi2EventDataIrOperationStatus_t *event_data =
6287 (Mpi2EventDataIrOperationStatus_t *)
6288 fw_event->event_data;
f92363d1
SR		 6289 static struct _raid_device *raid_device;
6290 unsigned long flags;
6291 u16 handle;
6292
6293#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
6294 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
6295 _scsih_sas_ir_operation_status_event_debug(ioc,
6296 event_data);
6297#endif
6298
6299 /* code added for raid transport support */
6300 if (event_data->RAIDOperation == MPI2_EVENT_IR_RAIDOP_RESYNC) {
6301
6302 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6303 handle = le16_to_cpu(event_data->VolDevHandle);
6304 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
6305 if (raid_device)
6306 raid_device->percent_complete =
6307 event_data->PercentComplete;
6308 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6309 }
6310}
6311
6312/**
6313 * _scsih_prep_device_scan - initialize parameters prior to device scan
6314 * @ioc: per adapter object
6315 *
6316 * Set the deleted flag prior to device scan. If the device is found during
6317 * the scan, then we clear the deleted flag.
6318 */
6319static void
6320_scsih_prep_device_scan(struct MPT3SAS_ADAPTER *ioc)
6321{
6322 struct MPT3SAS_DEVICE *sas_device_priv_data;
6323 struct scsi_device *sdev;
6324
6325 shost_for_each_device(sdev, ioc->shost) {
6326 sas_device_priv_data = sdev->hostdata;
6327 if (sas_device_priv_data && sas_device_priv_data->sas_target)
6328 sas_device_priv_data->sas_target->deleted = 1;
6329 }
6330}
6331
6332/**
6333 * _scsih_mark_responding_sas_device - mark a sas_devices as responding
6334 * @ioc: per adapter object
6335 * @sas_address: sas address
6336 * @slot: enclosure slot id
6337 * @handle: device handle
6338 *
6339 * After host reset, find out whether devices are still responding.
6340 * Used in _scsih_remove_unresponsive_sas_devices.
6341 *
6342 * Return nothing.
6343 */
6344static void
6345_scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
6346 u16 slot, u16 handle)
6347{
6348 struct MPT3SAS_TARGET *sas_target_priv_data = NULL;
6349 struct scsi_target *starget;
6350 struct _sas_device *sas_device;
6351 unsigned long flags;
6352
6353 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6354 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
6355 if (sas_device->sas_address == sas_address &&
6356 sas_device->slot == slot) {
6357 sas_device->responding = 1;
6358 starget = sas_device->starget;
6359 if (starget && starget->hostdata) {
6360 sas_target_priv_data = starget->hostdata;
6361 sas_target_priv_data->tm_busy = 0;
6362 sas_target_priv_data->deleted = 0;
6363 } else
6364 sas_target_priv_data = NULL;
6365 if (starget)
6366 starget_printk(KERN_INFO, starget,
6367 "handle(0x%04x), sas_addr(0x%016llx), "
6368 "enclosure logical id(0x%016llx), "
6369 "slot(%d)\n", handle,
6370 (unsigned long long)sas_device->sas_address,
6371 (unsigned long long)
6372 sas_device->enclosure_logical_id,
6373 sas_device->slot);
6374 if (sas_device->handle == handle)
6375 goto out;
6376 pr_info("\thandle changed from(0x%04x)!!!\n",
6377 sas_device->handle);
6378 sas_device->handle = handle;
6379 if (sas_target_priv_data)
6380 sas_target_priv_data->handle = handle;
6381 goto out;
6382 }
6383 }
6384 out:
6385 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6386}
6387
6388/**
6389 * _scsih_search_responding_sas_devices -
6390 * @ioc: per adapter object
6391 *
6392 * After host reset, find out whether devices are still responding.
6393 * If not remove.
6394 *
6395 * Return nothing.
6396 */
6397static void
6398_scsih_search_responding_sas_devices(struct MPT3SAS_ADAPTER *ioc)
6399{
6400 Mpi2SasDevicePage0_t sas_device_pg0;
6401 Mpi2ConfigReply_t mpi_reply;
6402 u16 ioc_status;
6403 u16 handle;
6404 u32 device_info;
6405
6406 pr_info(MPT3SAS_FMT "search for end-devices: start\n", ioc->name);
6407
6408 if (list_empty(&ioc->sas_device_list))
6409 goto out;
6410
6411 handle = 0xFFFF;
6412 while (!(mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
6413 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
6414 handle))) {
6415 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6416 MPI2_IOCSTATUS_MASK;
14be49ac 6417 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
f92363d1
SR		 6418 break;
6419 handle = le16_to_cpu(sas_device_pg0.DevHandle);
6420 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
6421 if (!(_scsih_is_end_device(device_info)))
6422 continue;
6423 _scsih_mark_responding_sas_device(ioc,
6424 le64_to_cpu(sas_device_pg0.SASAddress),
6425 le16_to_cpu(sas_device_pg0.Slot), handle);
6426 }
6427
6428 out:
6429 pr_info(MPT3SAS_FMT "search for end-devices: complete\n",
6430 ioc->name);
6431}
6432
6433/**
6434 * _scsih_mark_responding_raid_device - mark a raid_device as responding
6435 * @ioc: per adapter object
6436 * @wwid: world wide identifier for raid volume
6437 * @handle: device handle
6438 *
6439 * After host reset, find out whether devices are still responding.
6440 * Used in _scsih_remove_unresponsive_raid_devices.
6441 *
6442 * Return nothing.
6443 */
6444static void
6445_scsih_mark_responding_raid_device(struct MPT3SAS_ADAPTER *ioc, u64 wwid,
6446 u16 handle)
6447{
6448 struct MPT3SAS_TARGET *sas_target_priv_data;
6449 struct scsi_target *starget;
6450 struct _raid_device *raid_device;
6451 unsigned long flags;
6452
6453 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6454 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
6455 if (raid_device->wwid == wwid && raid_device->starget) {
6456 starget = raid_device->starget;
6457 if (starget && starget->hostdata) {
6458 sas_target_priv_data = starget->hostdata;
6459 sas_target_priv_data->deleted = 0;
6460 } else
6461 sas_target_priv_data = NULL;
6462 raid_device->responding = 1;
6463 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6464 starget_printk(KERN_INFO, raid_device->starget,
6465 "handle(0x%04x), wwid(0x%016llx)\n", handle,
6466 (unsigned long long)raid_device->wwid);
6467 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6468 if (raid_device->handle == handle) {
6469 spin_unlock_irqrestore(&ioc->raid_device_lock,
6470 flags);
6471 return;
6472 }
6473 pr_info("\thandle changed from(0x%04x)!!!\n",
6474 raid_device->handle);
6475 raid_device->handle = handle;
6476 if (sas_target_priv_data)
6477 sas_target_priv_data->handle = handle;
6478 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6479 return;
6480 }
6481 }
6482 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6483}
6484
6485/**
6486 * _scsih_search_responding_raid_devices -
6487 * @ioc: per adapter object
6488 *
6489 * After host reset, find out whether devices are still responding.
6490 * If not remove.
6491 *
6492 * Return nothing.
6493 */
6494static void
6495_scsih_search_responding_raid_devices(struct MPT3SAS_ADAPTER *ioc)
6496{
6497 Mpi2RaidVolPage1_t volume_pg1;
6498 Mpi2RaidVolPage0_t volume_pg0;
6499 Mpi2RaidPhysDiskPage0_t pd_pg0;
6500 Mpi2ConfigReply_t mpi_reply;
6501 u16 ioc_status;
6502 u16 handle;
6503 u8 phys_disk_num;
6504
6505 if (!ioc->ir_firmware)
6506 return;
6507
6508 pr_info(MPT3SAS_FMT "search for raid volumes: start\n",
6509 ioc->name);
6510
6511 if (list_empty(&ioc->raid_device_list))
6512 goto out;
6513
6514 handle = 0xFFFF;
6515 while (!(mpt3sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
6516 &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
6517 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6518 MPI2_IOCSTATUS_MASK;
14be49ac 6519 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
f92363d1
SR		 6520 break;
6521 handle = le16_to_cpu(volume_pg1.DevHandle);
6522
6523 if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
6524 &volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
6525 sizeof(Mpi2RaidVolPage0_t)))
6526 continue;
6527
6528 if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
6529 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
6530 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED)
6531 _scsih_mark_responding_raid_device(ioc,
6532 le64_to_cpu(volume_pg1.WWID), handle);
6533 }
6534
6535 /* refresh the pd_handles */
6536 phys_disk_num = 0xFF;
6537 memset(ioc->pd_handles, 0, ioc->pd_handles_sz);
6538 while (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
6539 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
6540 phys_disk_num))) {
6541 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6542 MPI2_IOCSTATUS_MASK;
14be49ac 6543 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
f92363d1
SR		 6544 break;
6545 phys_disk_num = pd_pg0.PhysDiskNum;
6546 handle = le16_to_cpu(pd_pg0.DevHandle);
6547 set_bit(handle, ioc->pd_handles);
6548 }
6549 out:
6550 pr_info(MPT3SAS_FMT "search for responding raid volumes: complete\n",
6551 ioc->name);
6552}
6553
6554/**
6555 * _scsih_mark_responding_expander - mark a expander as responding
6556 * @ioc: per adapter object
6557 * @sas_address: sas address
6558 * @handle:
6559 *
6560 * After host reset, find out whether devices are still responding.
6561 * Used in _scsih_remove_unresponsive_expanders.
6562 *
6563 * Return nothing.
6564 */
6565static void
6566_scsih_mark_responding_expander(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
6567 u16 handle)
6568{
6569 struct _sas_node *sas_expander;
6570 unsigned long flags;
6571 int i;
6572
6573 spin_lock_irqsave(&ioc->sas_node_lock, flags);
6574 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
6575 if (sas_expander->sas_address != sas_address)
6576 continue;
6577 sas_expander->responding = 1;
6578 if (sas_expander->handle == handle)
6579 goto out;
6580 pr_info("\texpander(0x%016llx): handle changed" \
6581 " from(0x%04x) to (0x%04x)!!!\n",
6582 (unsigned long long)sas_expander->sas_address,
6583 sas_expander->handle, handle);
6584 sas_expander->handle = handle;
6585 for (i = 0 ; i < sas_expander->num_phys ; i++)
6586 sas_expander->phy[i].handle = handle;
6587 goto out;
6588 }
6589 out:
6590 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
6591}
6592
6593/**
6594 * _scsih_search_responding_expanders -
6595 * @ioc: per adapter object
6596 *
6597 * After host reset, find out whether devices are still responding.
6598 * If not remove.
6599 *
6600 * Return nothing.
6601 */
6602static void
6603_scsih_search_responding_expanders(struct MPT3SAS_ADAPTER *ioc)
6604{
6605 Mpi2ExpanderPage0_t expander_pg0;
6606 Mpi2ConfigReply_t mpi_reply;
6607 u16 ioc_status;
6608 u64 sas_address;
6609 u16 handle;
6610
6611 pr_info(MPT3SAS_FMT "search for expanders: start\n", ioc->name);
6612
6613 if (list_empty(&ioc->sas_expander_list))
6614 goto out;
6615
6616 handle = 0xFFFF;
6617 while (!(mpt3sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
6618 MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
6619
6620 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6621 MPI2_IOCSTATUS_MASK;
14be49ac 6622 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
f92363d1
SR		 6623 break;
6624
6625 handle = le16_to_cpu(expander_pg0.DevHandle);
6626 sas_address = le64_to_cpu(expander_pg0.SASAddress);
6627 pr_info("\texpander present: handle(0x%04x), sas_addr(0x%016llx)\n",
6628 handle,
6629 (unsigned long long)sas_address);
6630 _scsih_mark_responding_expander(ioc, sas_address, handle);
6631 }
6632
6633 out:
6634 pr_info(MPT3SAS_FMT "search for expanders: complete\n", ioc->name);
6635}
6636
6637/**
6638 * _scsih_remove_unresponding_sas_devices - removing unresponding devices
6639 * @ioc: per adapter object
6640 *
6641 * Return nothing.
6642 */
6643static void
6644_scsih_remove_unresponding_sas_devices(struct MPT3SAS_ADAPTER *ioc)
6645{
6646 struct _sas_device *sas_device, *sas_device_next;
6647 struct _sas_node *sas_expander, *sas_expander_next;
6648 struct _raid_device *raid_device, *raid_device_next;
6649 struct list_head tmp_list;
6650 unsigned long flags;
6651
6652 pr_info(MPT3SAS_FMT "removing unresponding devices: start\n",
6653 ioc->name);
6654
6655 /* removing unresponding end devices */
6656 pr_info(MPT3SAS_FMT "removing unresponding devices: end-devices\n",
6657 ioc->name);
6658 list_for_each_entry_safe(sas_device, sas_device_next,
6659 &ioc->sas_device_list, list) {
6660 if (!sas_device->responding)
6661 mpt3sas_device_remove_by_sas_address(ioc,
6662 sas_device->sas_address);
6663 else
6664 sas_device->responding = 0;
6665 }
6666
6667 /* removing unresponding volumes */
6668 if (ioc->ir_firmware) {
6669 pr_info(MPT3SAS_FMT "removing unresponding devices: volumes\n",
6670 ioc->name);
6671 list_for_each_entry_safe(raid_device, raid_device_next,
6672 &ioc->raid_device_list, list) {
6673 if (!raid_device->responding)
6674 _scsih_sas_volume_delete(ioc,
6675 raid_device->handle);
6676 else
6677 raid_device->responding = 0;
6678 }
6679 }
6680
6681 /* removing unresponding expanders */
6682 pr_info(MPT3SAS_FMT "removing unresponding devices: expanders\n",
6683 ioc->name);
6684 spin_lock_irqsave(&ioc->sas_node_lock, flags);
6685 INIT_LIST_HEAD(&tmp_list);
6686 list_for_each_entry_safe(sas_expander, sas_expander_next,
6687 &ioc->sas_expander_list, list) {
6688 if (!sas_expander->responding)
6689 list_move_tail(&sas_expander->list, &tmp_list);
6690 else
6691 sas_expander->responding = 0;
6692 }
6693 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
6694 list_for_each_entry_safe(sas_expander, sas_expander_next, &tmp_list,
6695 list) {
6696 list_del(&sas_expander->list);
6697 _scsih_expander_node_remove(ioc, sas_expander);
6698 }
6699
6700 pr_info(MPT3SAS_FMT "removing unresponding devices: complete\n",
6701 ioc->name);
6702
6703 /* unblock devices */
6704 _scsih_ublock_io_all_device(ioc);
6705}
6706
6707static void
6708_scsih_refresh_expander_links(struct MPT3SAS_ADAPTER *ioc,
6709 struct _sas_node *sas_expander, u16 handle)
6710{
6711 Mpi2ExpanderPage1_t expander_pg1;
6712 Mpi2ConfigReply_t mpi_reply;
6713 int i;
6714
6715 for (i = 0 ; i < sas_expander->num_phys ; i++) {
6716 if ((mpt3sas_config_get_expander_pg1(ioc, &mpi_reply,
6717 &expander_pg1, i, handle))) {
6718 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
6719 ioc->name, __FILE__, __LINE__, __func__);
6720 return;
6721 }
6722
6723 mpt3sas_transport_update_links(ioc, sas_expander->sas_address,
6724 le16_to_cpu(expander_pg1.AttachedDevHandle), i,
6725 expander_pg1.NegotiatedLinkRate >> 4);
6726 }
6727}
6728
6729/**
6730 * _scsih_scan_for_devices_after_reset - scan for devices after host reset
6731 * @ioc: per adapter object
6732 *
6733 * Return nothing.
6734 */
6735static void
6736_scsih_scan_for_devices_after_reset(struct MPT3SAS_ADAPTER *ioc)
6737{
6738 Mpi2ExpanderPage0_t expander_pg0;
6739 Mpi2SasDevicePage0_t sas_device_pg0;
6740 Mpi2RaidVolPage1_t volume_pg1;
6741 Mpi2RaidVolPage0_t volume_pg0;
6742 Mpi2RaidPhysDiskPage0_t pd_pg0;
6743 Mpi2EventIrConfigElement_t element;
6744 Mpi2ConfigReply_t mpi_reply;
6745 u8 phys_disk_num;
6746 u16 ioc_status;
6747 u16 handle, parent_handle;
6748 u64 sas_address;
6749 struct _sas_device *sas_device;
6750 struct _sas_node *expander_device;
6751 static struct _raid_device *raid_device;
6752 u8 retry_count;
6753 unsigned long flags;
6754
6755 pr_info(MPT3SAS_FMT "scan devices: start\n", ioc->name);
6756
6757 _scsih_sas_host_refresh(ioc);
6758
6759 pr_info(MPT3SAS_FMT "\tscan devices: expanders start\n", ioc->name);
6760
6761 /* expanders */
6762 handle = 0xFFFF;
6763 while (!(mpt3sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
6764 MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
6765 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6766 MPI2_IOCSTATUS_MASK;
f92363d1
SR		 6767 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6768 pr_info(MPT3SAS_FMT "\tbreak from expander scan: " \
6769 "ioc_status(0x%04x), loginfo(0x%08x)\n",
6770 ioc->name, ioc_status,
6771 le32_to_cpu(mpi_reply.IOCLogInfo));
6772 break;
6773 }
6774 handle = le16_to_cpu(expander_pg0.DevHandle);
6775 spin_lock_irqsave(&ioc->sas_node_lock, flags);
6776 expander_device = mpt3sas_scsih_expander_find_by_sas_address(
6777 ioc, le64_to_cpu(expander_pg0.SASAddress));
6778 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
6779 if (expander_device)
6780 _scsih_refresh_expander_links(ioc, expander_device,
6781 handle);
6782 else {
6783 pr_info(MPT3SAS_FMT "\tBEFORE adding expander: " \
6784 "handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name,
6785 handle, (unsigned long long)
6786 le64_to_cpu(expander_pg0.SASAddress));
6787 _scsih_expander_add(ioc, handle);
6788 pr_info(MPT3SAS_FMT "\tAFTER adding expander: " \
6789 "handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name,
6790 handle, (unsigned long long)
6791 le64_to_cpu(expander_pg0.SASAddress));
6792 }
6793 }
6794
6795 pr_info(MPT3SAS_FMT "\tscan devices: expanders complete\n",
6796 ioc->name);
6797
6798 if (!ioc->ir_firmware)
6799 goto skip_to_sas;
6800
6801 pr_info(MPT3SAS_FMT "\tscan devices: phys disk start\n", ioc->name);
6802
6803 /* phys disk */
6804 phys_disk_num = 0xFF;
6805 while (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
6806 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
6807 phys_disk_num))) {
6808 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6809 MPI2_IOCSTATUS_MASK;
f92363d1
SR		 6810 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6811 pr_info(MPT3SAS_FMT "\tbreak from phys disk scan: "\
6812 "ioc_status(0x%04x), loginfo(0x%08x)\n",
6813 ioc->name, ioc_status,
6814 le32_to_cpu(mpi_reply.IOCLogInfo));
6815 break;
6816 }
6817 phys_disk_num = pd_pg0.PhysDiskNum;
6818 handle = le16_to_cpu(pd_pg0.DevHandle);
6819 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6820 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
6821 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6822 if (sas_device)
6823 continue;
6824 if (mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
6825 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
6826 handle) != 0)
6827 continue;
6828 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6829 MPI2_IOCSTATUS_MASK;
6830 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6831 pr_info(MPT3SAS_FMT "\tbreak from phys disk scan " \
6832 "ioc_status(0x%04x), loginfo(0x%08x)\n",
6833 ioc->name, ioc_status,
6834 le32_to_cpu(mpi_reply.IOCLogInfo));
6835 break;
6836 }
6837 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
6838 if (!_scsih_get_sas_address(ioc, parent_handle,
6839 &sas_address)) {
6840 pr_info(MPT3SAS_FMT "\tBEFORE adding phys disk: " \
6841 " handle (0x%04x), sas_addr(0x%016llx)\n",
6842 ioc->name, handle, (unsigned long long)
6843 le64_to_cpu(sas_device_pg0.SASAddress));
6844 mpt3sas_transport_update_links(ioc, sas_address,
6845 handle, sas_device_pg0.PhyNum,
6846 MPI2_SAS_NEG_LINK_RATE_1_5);
6847 set_bit(handle, ioc->pd_handles);
6848 retry_count = 0;
6849 /* This will retry adding the end device.
6850 * _scsih_add_device() will decide on retries and
6851 * return "1" when it should be retried
6852 */
6853 while (_scsih_add_device(ioc, handle, retry_count++,
6854 1)) {
6855 ssleep(1);
6856 }
6857 pr_info(MPT3SAS_FMT "\tAFTER adding phys disk: " \
6858 " handle (0x%04x), sas_addr(0x%016llx)\n",
6859 ioc->name, handle, (unsigned long long)
6860 le64_to_cpu(sas_device_pg0.SASAddress));
6861 }
6862 }
6863
6864 pr_info(MPT3SAS_FMT "\tscan devices: phys disk complete\n",
6865 ioc->name);
6866
6867 pr_info(MPT3SAS_FMT "\tscan devices: volumes start\n", ioc->name);
6868
6869 /* volumes */
6870 handle = 0xFFFF;
6871 while (!(mpt3sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
6872 &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
6873 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6874 MPI2_IOCSTATUS_MASK;
f92363d1
SR		 6875 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6876 pr_info(MPT3SAS_FMT "\tbreak from volume scan: " \
6877 "ioc_status(0x%04x), loginfo(0x%08x)\n",
6878 ioc->name, ioc_status,
6879 le32_to_cpu(mpi_reply.IOCLogInfo));
6880 break;
6881 }
6882 handle = le16_to_cpu(volume_pg1.DevHandle);
6883 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6884 raid_device = _scsih_raid_device_find_by_wwid(ioc,
6885 le64_to_cpu(volume_pg1.WWID));
6886 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6887 if (raid_device)
6888 continue;
6889 if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
6890 &volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
6891 sizeof(Mpi2RaidVolPage0_t)))
6892 continue;
6893 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6894 MPI2_IOCSTATUS_MASK;
6895 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6896 pr_info(MPT3SAS_FMT "\tbreak from volume scan: " \
6897 "ioc_status(0x%04x), loginfo(0x%08x)\n",
6898 ioc->name, ioc_status,
6899 le32_to_cpu(mpi_reply.IOCLogInfo));
6900 break;
6901 }
6902 if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
6903 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
6904 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED) {
6905 memset(&element, 0, sizeof(Mpi2EventIrConfigElement_t));
6906 element.ReasonCode = MPI2_EVENT_IR_CHANGE_RC_ADDED;
6907 element.VolDevHandle = volume_pg1.DevHandle;
6908 pr_info(MPT3SAS_FMT
6909 "\tBEFORE adding volume: handle (0x%04x)\n",
6910 ioc->name, volume_pg1.DevHandle);
6911 _scsih_sas_volume_add(ioc, &element);
6912 pr_info(MPT3SAS_FMT
6913 "\tAFTER adding volume: handle (0x%04x)\n",
6914 ioc->name, volume_pg1.DevHandle);
6915 }
6916 }
6917
6918 pr_info(MPT3SAS_FMT "\tscan devices: volumes complete\n",
6919 ioc->name);
6920
6921 skip_to_sas:
6922
6923 pr_info(MPT3SAS_FMT "\tscan devices: end devices start\n",
6924 ioc->name);
6925
6926 /* sas devices */
6927 handle = 0xFFFF;
6928 while (!(mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
6929 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
6930 handle))) {
6931 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6932 MPI2_IOCSTATUS_MASK;
f92363d1
SR		 6933 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6934 pr_info(MPT3SAS_FMT "\tbreak from end device scan:"\
6935 " ioc_status(0x%04x), loginfo(0x%08x)\n",
6936 ioc->name, ioc_status,
6937 le32_to_cpu(mpi_reply.IOCLogInfo));
6938 break;
6939 }
6940 handle = le16_to_cpu(sas_device_pg0.DevHandle);
6941 if (!(_scsih_is_end_device(
6942 le32_to_cpu(sas_device_pg0.DeviceInfo))))
6943 continue;
6944 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6945 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
6946 le64_to_cpu(sas_device_pg0.SASAddress));
6947 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6948 if (sas_device)
6949 continue;
6950 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
6951 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address)) {
6952 pr_info(MPT3SAS_FMT "\tBEFORE adding end device: " \
6953 "handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name,
6954 handle, (unsigned long long)
6955 le64_to_cpu(sas_device_pg0.SASAddress));
6956 mpt3sas_transport_update_links(ioc, sas_address, handle,
6957 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
6958 retry_count = 0;
6959 /* This will retry adding the end device.
6960 * _scsih_add_device() will decide on retries and
6961 * return "1" when it should be retried
6962 */
6963 while (_scsih_add_device(ioc, handle, retry_count++,
6964 0)) {
6965 ssleep(1);
6966 }
6967 pr_info(MPT3SAS_FMT "\tAFTER adding end device: " \
6968 "handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name,
6969 handle, (unsigned long long)
6970 le64_to_cpu(sas_device_pg0.SASAddress));
6971 }
6972 }
6973 pr_info(MPT3SAS_FMT "\tscan devices: end devices complete\n",
6974 ioc->name);
6975
6976 pr_info(MPT3SAS_FMT "scan devices: complete\n", ioc->name);
6977}
6978/**
6979 * mpt3sas_scsih_reset_handler - reset callback handler (for scsih)
6980 * @ioc: per adapter object
6981 * @reset_phase: phase
6982 *
6983 * The handler for doing any required cleanup or initialization.
6984 *
6985 * The reset phase can be MPT3_IOC_PRE_RESET, MPT3_IOC_AFTER_RESET,
6986 * MPT3_IOC_DONE_RESET
6987 *
6988 * Return nothing.
6989 */
6990void
6991mpt3sas_scsih_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase)
6992{
6993 switch (reset_phase) {
6994 case MPT3_IOC_PRE_RESET:
6995 dtmprintk(ioc, pr_info(MPT3SAS_FMT
6996 "%s: MPT3_IOC_PRE_RESET\n", ioc->name, __func__));
6997 break;
6998 case MPT3_IOC_AFTER_RESET:
6999 dtmprintk(ioc, pr_info(MPT3SAS_FMT
7000 "%s: MPT3_IOC_AFTER_RESET\n", ioc->name, __func__));
7001 if (ioc->scsih_cmds.status & MPT3_CMD_PENDING) {
7002 ioc->scsih_cmds.status |= MPT3_CMD_RESET;
7003 mpt3sas_base_free_smid(ioc, ioc->scsih_cmds.smid);
7004 complete(&ioc->scsih_cmds.done);
7005 }
7006 if (ioc->tm_cmds.status & MPT3_CMD_PENDING) {
7007 ioc->tm_cmds.status |= MPT3_CMD_RESET;
7008 mpt3sas_base_free_smid(ioc, ioc->tm_cmds.smid);
7009 complete(&ioc->tm_cmds.done);
7010 }
7011
7012 _scsih_fw_event_cleanup_queue(ioc);
7013 _scsih_flush_running_cmds(ioc);
7014 break;
7015 case MPT3_IOC_DONE_RESET:
7016 dtmprintk(ioc, pr_info(MPT3SAS_FMT
7017 "%s: MPT3_IOC_DONE_RESET\n", ioc->name, __func__));
7018 if ((!ioc->is_driver_loading) && !(disable_discovery > 0 &&
7019 !ioc->sas_hba.num_phys)) {
7020 _scsih_prep_device_scan(ioc);
7021 _scsih_search_responding_sas_devices(ioc);
7022 _scsih_search_responding_raid_devices(ioc);
7023 _scsih_search_responding_expanders(ioc);
7024 _scsih_error_recovery_delete_devices(ioc);
7025 }
7026 break;
7027 }
7028}
7029
7030/**
7031 * _mpt3sas_fw_work - delayed task for processing firmware events
7032 * @ioc: per adapter object
7033 * @fw_event: The fw_event_work object
7034 * Context: user.
7035 *
7036 * Return nothing.
7037 */
7038static void
7039_mpt3sas_fw_work(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
7040{
7041 /* the queue is being flushed so ignore this event */
7042 if (ioc->remove_host || fw_event->cancel_pending_work ||
7043 ioc->pci_error_recovery) {
7044 _scsih_fw_event_free(ioc, fw_event);
7045 return;
7046 }
7047
7048 switch (fw_event->event) {
7049 case MPT3SAS_PROCESS_TRIGGER_DIAG:
35b62362
JL		 7050 mpt3sas_process_trigger_data(ioc,
7051 (struct SL_WH_TRIGGERS_EVENT_DATA_T *)
7052 fw_event->event_data);
f92363d1
SR		 7053 break;
7054 case MPT3SAS_REMOVE_UNRESPONDING_DEVICES:
7055 while (scsi_host_in_recovery(ioc->shost) || ioc->shost_recovery)
7056 ssleep(1);
7057 _scsih_remove_unresponding_sas_devices(ioc);
7058 _scsih_scan_for_devices_after_reset(ioc);
7059 break;
7060 case MPT3SAS_PORT_ENABLE_COMPLETE:
7061 ioc->start_scan = 0;
7062 if (missing_delay[0] != -1 && missing_delay[1] != -1)
7063 mpt3sas_base_update_missing_delay(ioc, missing_delay[0],
7064 missing_delay[1]);
7065 dewtprintk(ioc, pr_info(MPT3SAS_FMT
7066 "port enable: complete from worker thread\n",
7067 ioc->name));
7068 break;
7069 case MPT3SAS_TURN_ON_FAULT_LED:
7070 _scsih_turn_on_fault_led(ioc, fw_event->device_handle);
7071 break;
7072 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
7073 _scsih_sas_topology_change_event(ioc, fw_event);
7074 break;
7075 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
7076 _scsih_sas_device_status_change_event(ioc, fw_event);
7077 break;
7078 case MPI2_EVENT_SAS_DISCOVERY:
7079 _scsih_sas_discovery_event(ioc, fw_event);
7080 break;
7081 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
7082 _scsih_sas_broadcast_primitive_event(ioc, fw_event);
7083 break;
7084 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
7085 _scsih_sas_enclosure_dev_status_change_event(ioc,
7086 fw_event);
7087 break;
7088 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
7089 _scsih_sas_ir_config_change_event(ioc, fw_event);
7090 break;
7091 case MPI2_EVENT_IR_VOLUME:
7092 _scsih_sas_ir_volume_event(ioc, fw_event);
7093 break;
7094 case MPI2_EVENT_IR_PHYSICAL_DISK:
7095 _scsih_sas_ir_physical_disk_event(ioc, fw_event);
7096 break;
7097 case MPI2_EVENT_IR_OPERATION_STATUS:
7098 _scsih_sas_ir_operation_status_event(ioc, fw_event);
7099 break;
7100 }
7101 _scsih_fw_event_free(ioc, fw_event);
7102}
7103
7104/**
7105 * _firmware_event_work
7106 * @ioc: per adapter object
7107 * @work: The fw_event_work object
7108 * Context: user.
7109 *
7110 * wrappers for the work thread handling firmware events
7111 *
7112 * Return nothing.
7113 */
7114
7115static void
7116_firmware_event_work(struct work_struct *work)
7117{
7118 struct fw_event_work *fw_event = container_of(work,
7119 struct fw_event_work, work);
7120
7121 _mpt3sas_fw_work(fw_event->ioc, fw_event);
7122}
7123
7124/**
7125 * mpt3sas_scsih_event_callback - firmware event handler (called at ISR time)
7126 * @ioc: per adapter object
7127 * @msix_index: MSIX table index supplied by the OS
7128 * @reply: reply message frame(lower 32bit addr)
7129 * Context: interrupt.
7130 *
7131 * This function merely adds a new work task into ioc->firmware_event_thread.
7132 * The tasks are worked from _firmware_event_work in user context.
7133 *
7134 * Return 1 meaning mf should be freed from _base_interrupt
7135 * 0 means the mf is freed from this function.
7136 */
7137u8
7138mpt3sas_scsih_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
7139 u32 reply)
7140{
7141 struct fw_event_work *fw_event;
7142 Mpi2EventNotificationReply_t *mpi_reply;
7143 u16 event;
7144 u16 sz;
7145
7146 /* events turned off due to host reset or driver unloading */
7147 if (ioc->remove_host || ioc->pci_error_recovery)
7148 return 1;
7149
7150 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
7151
7152 if (unlikely(!mpi_reply)) {
7153 pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n",
7154 ioc->name, __FILE__, __LINE__, __func__);
7155 return 1;
7156 }
7157
7158 event = le16_to_cpu(mpi_reply->Event);
7159
7160 if (event != MPI2_EVENT_LOG_ENTRY_ADDED)
7161 mpt3sas_trigger_event(ioc, event, 0);
7162
7163 switch (event) {
7164 /* handle these */
7165 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
7166 {
7167 Mpi2EventDataSasBroadcastPrimitive_t *baen_data =
7168 (Mpi2EventDataSasBroadcastPrimitive_t *)
7169 mpi_reply->EventData;
7170
7171 if (baen_data->Primitive !=
7172 MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT)
7173 return 1;
7174
7175 if (ioc->broadcast_aen_busy) {
7176 ioc->broadcast_aen_pending++;
7177 return 1;
7178 } else
7179 ioc->broadcast_aen_busy = 1;
7180 break;
7181 }
7182
7183 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
7184 _scsih_check_topo_delete_events(ioc,
7185 (Mpi2EventDataSasTopologyChangeList_t *)
7186 mpi_reply->EventData);
7187 break;
7188 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
7189 _scsih_check_ir_config_unhide_events(ioc,
7190 (Mpi2EventDataIrConfigChangeList_t *)
7191 mpi_reply->EventData);
7192 break;
7193 case MPI2_EVENT_IR_VOLUME:
7194 _scsih_check_volume_delete_events(ioc,
7195 (Mpi2EventDataIrVolume_t *)
7196 mpi_reply->EventData);
7197 break;
7198
7199 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
7200 case MPI2_EVENT_IR_OPERATION_STATUS:
7201 case MPI2_EVENT_SAS_DISCOVERY:
7202 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
7203 case MPI2_EVENT_IR_PHYSICAL_DISK:
7204 break;
7205
7206 default: /* ignore the rest */
7207 return 1;
7208 }
7209
f92363d1 7210 sz = le16_to_cpu(mpi_reply->EventDataLength) * 4;
35b62362
JL		 7211 fw_event = kzalloc(sizeof(*fw_event) + sz, GFP_ATOMIC);
7212 if (!fw_event) {
f92363d1
SR		 7213 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
7214 ioc->name, __FILE__, __LINE__, __func__);
f92363d1
SR		 7215 return 1;
7216 }
7217
7218 memcpy(fw_event->event_data, mpi_reply->EventData, sz);
7219 fw_event->ioc = ioc;
7220 fw_event->VF_ID = mpi_reply->VF_ID;
7221 fw_event->VP_ID = mpi_reply->VP_ID;
7222 fw_event->event = event;
7223 _scsih_fw_event_add(ioc, fw_event);
7224 return 1;
7225}
7226
7227/* shost template */
7228static struct scsi_host_template scsih_driver_template = {
7229 .module = THIS_MODULE,
7230 .name = "Fusion MPT SAS Host",
7231 .proc_name = MPT3SAS_DRIVER_NAME,
7232 .queuecommand = _scsih_qcmd,
7233 .target_alloc = _scsih_target_alloc,
7234 .slave_alloc = _scsih_slave_alloc,
7235 .slave_configure = _scsih_slave_configure,
7236 .target_destroy = _scsih_target_destroy,
7237 .slave_destroy = _scsih_slave_destroy,
7238 .scan_finished = _scsih_scan_finished,
7239 .scan_start = _scsih_scan_start,
7240 .change_queue_depth = _scsih_change_queue_depth,
7241 .change_queue_type = _scsih_change_queue_type,
7242 .eh_abort_handler = _scsih_abort,
7243 .eh_device_reset_handler = _scsih_dev_reset,
7244 .eh_target_reset_handler = _scsih_target_reset,
7245 .eh_host_reset_handler = _scsih_host_reset,
7246 .bios_param = _scsih_bios_param,
7247 .can_queue = 1,
7248 .this_id = -1,
7249 .sg_tablesize = MPT3SAS_SG_DEPTH,
7250 .max_sectors = 32767,
7251 .cmd_per_lun = 7,
7252 .use_clustering = ENABLE_CLUSTERING,
7253 .shost_attrs = mpt3sas_host_attrs,
7254 .sdev_attrs = mpt3sas_dev_attrs,
7255};
7256
7257/**
7258 * _scsih_expander_node_remove - removing expander device from list.
7259 * @ioc: per adapter object
7260 * @sas_expander: the sas_device object
7261 * Context: Calling function should acquire ioc->sas_node_lock.
7262 *
7263 * Removing object and freeing associated memory from the
7264 * ioc->sas_expander_list.
7265 *
7266 * Return nothing.
7267 */
7268static void
7269_scsih_expander_node_remove(struct MPT3SAS_ADAPTER *ioc,
7270 struct _sas_node *sas_expander)
7271{
7272 struct _sas_port *mpt3sas_port, *next;
7273
7274 /* remove sibling ports attached to this expander */
7275 list_for_each_entry_safe(mpt3sas_port, next,
7276 &sas_expander->sas_port_list, port_list) {
7277 if (ioc->shost_recovery)
7278 return;
7279 if (mpt3sas_port->remote_identify.device_type ==
7280 SAS_END_DEVICE)
7281 mpt3sas_device_remove_by_sas_address(ioc,
7282 mpt3sas_port->remote_identify.sas_address);
7283 else if (mpt3sas_port->remote_identify.device_type ==
7284 SAS_EDGE_EXPANDER_DEVICE ||
7285 mpt3sas_port->remote_identify.device_type ==
7286 SAS_FANOUT_EXPANDER_DEVICE)
7287 mpt3sas_expander_remove(ioc,
7288 mpt3sas_port->remote_identify.sas_address);
7289 }
7290
7291 mpt3sas_transport_port_remove(ioc, sas_expander->sas_address,
7292 sas_expander->sas_address_parent);
7293
7294 pr_info(MPT3SAS_FMT
7295 "expander_remove: handle(0x%04x), sas_addr(0x%016llx)\n",
7296 ioc->name,
7297 sas_expander->handle, (unsigned long long)
7298 sas_expander->sas_address);
7299
7300 kfree(sas_expander->phy);
7301 kfree(sas_expander);
7302}
7303
7304/**
7305 * _scsih_ir_shutdown - IR shutdown notification
7306 * @ioc: per adapter object
7307 *
7308 * Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
7309 * the host system is shutting down.
7310 *
7311 * Return nothing.
7312 */
7313static void
7314_scsih_ir_shutdown(struct MPT3SAS_ADAPTER *ioc)
7315{
7316 Mpi2RaidActionRequest_t *mpi_request;
7317 Mpi2RaidActionReply_t *mpi_reply;
7318 u16 smid;
7319
7320 /* is IR firmware build loaded ? */
7321 if (!ioc->ir_firmware)
7322 return;
7323
7324 /* are there any volumes ? */
7325 if (list_empty(&ioc->raid_device_list))
7326 return;
7327
7328 mutex_lock(&ioc->scsih_cmds.mutex);
7329
7330 if (ioc->scsih_cmds.status != MPT3_CMD_NOT_USED) {
7331 pr_err(MPT3SAS_FMT "%s: scsih_cmd in use\n",
7332 ioc->name, __func__);
7333 goto out;
7334 }
7335 ioc->scsih_cmds.status = MPT3_CMD_PENDING;
7336
7337 smid = mpt3sas_base_get_smid(ioc, ioc->scsih_cb_idx);
7338 if (!smid) {
7339 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
7340 ioc->name, __func__);
7341 ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
7342 goto out;
7343 }
7344
7345 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
7346 ioc->scsih_cmds.smid = smid;
7347 memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t));
7348
7349 mpi_request->Function = MPI2_FUNCTION_RAID_ACTION;
7350 mpi_request->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;
7351
7352 pr_info(MPT3SAS_FMT "IR shutdown (sending)\n", ioc->name);
7353 init_completion(&ioc->scsih_cmds.done);
7354 mpt3sas_base_put_smid_default(ioc, smid);
7355 wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
7356
7357 if (!(ioc->scsih_cmds.status & MPT3_CMD_COMPLETE)) {
7358 pr_err(MPT3SAS_FMT "%s: timeout\n",
7359 ioc->name, __func__);
7360 goto out;
7361 }
7362
7363 if (ioc->scsih_cmds.status & MPT3_CMD_REPLY_VALID) {
7364 mpi_reply = ioc->scsih_cmds.reply;
7365 pr_info(MPT3SAS_FMT
7366 "IR shutdown (complete): ioc_status(0x%04x), loginfo(0x%08x)\n",
7367 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
7368 le32_to_cpu(mpi_reply->IOCLogInfo));
7369 }
7370
7371 out:
7372 ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
7373 mutex_unlock(&ioc->scsih_cmds.mutex);
7374}
7375
7376/**
7377 * _scsih_remove - detach and remove add host
7378 * @pdev: PCI device struct
7379 *
7380 * Routine called when unloading the driver.
7381 * Return nothing.
7382 */
6f039790 7383static void _scsih_remove(struct pci_dev *pdev)
f92363d1
SR		 7384{
7385 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7386 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7387 struct _sas_port *mpt3sas_port, *next_port;
7388 struct _raid_device *raid_device, *next;
7389 struct MPT3SAS_TARGET *sas_target_priv_data;
7390 struct workqueue_struct *wq;
7391 unsigned long flags;
7392
7393 ioc->remove_host = 1;
7394 _scsih_fw_event_cleanup_queue(ioc);
7395
7396 spin_lock_irqsave(&ioc->fw_event_lock, flags);
7397 wq = ioc->firmware_event_thread;
7398 ioc->firmware_event_thread = NULL;
7399 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
7400 if (wq)
7401 destroy_workqueue(wq);
7402
7403 /* release all the volumes */
7404 _scsih_ir_shutdown(ioc);
7405 list_for_each_entry_safe(raid_device, next, &ioc->raid_device_list,
7406 list) {
7407 if (raid_device->starget) {
7408 sas_target_priv_data =
7409 raid_device->starget->hostdata;
7410 sas_target_priv_data->deleted = 1;
7411 scsi_remove_target(&raid_device->starget->dev);
7412 }
7413 pr_info(MPT3SAS_FMT "removing handle(0x%04x), wwid(0x%016llx)\n",
7414 ioc->name, raid_device->handle,
7415 (unsigned long long) raid_device->wwid);
7416 _scsih_raid_device_remove(ioc, raid_device);
7417 }
7418
7419 /* free ports attached to the sas_host */
7420 list_for_each_entry_safe(mpt3sas_port, next_port,
7421 &ioc->sas_hba.sas_port_list, port_list) {
7422 if (mpt3sas_port->remote_identify.device_type ==
7423 SAS_END_DEVICE)
7424 mpt3sas_device_remove_by_sas_address(ioc,
7425 mpt3sas_port->remote_identify.sas_address);
7426 else if (mpt3sas_port->remote_identify.device_type ==
7427 SAS_EDGE_EXPANDER_DEVICE ||
7428 mpt3sas_port->remote_identify.device_type ==
7429 SAS_FANOUT_EXPANDER_DEVICE)
7430 mpt3sas_expander_remove(ioc,
7431 mpt3sas_port->remote_identify.sas_address);
7432 }
7433
7434 /* free phys attached to the sas_host */
7435 if (ioc->sas_hba.num_phys) {
7436 kfree(ioc->sas_hba.phy);
7437 ioc->sas_hba.phy = NULL;
7438 ioc->sas_hba.num_phys = 0;
7439 }
7440
7441 sas_remove_host(shost);
7442 mpt3sas_base_detach(ioc);
7443 list_del(&ioc->list);
7444 scsi_remove_host(shost);
7445 scsi_host_put(shost);
7446}
7447
7448/**
7449 * _scsih_shutdown - routine call during system shutdown
7450 * @pdev: PCI device struct
7451 *
7452 * Return nothing.
7453 */
7454static void
7455_scsih_shutdown(struct pci_dev *pdev)
7456{
7457 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7458 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7459 struct workqueue_struct *wq;
7460 unsigned long flags;
7461
7462 ioc->remove_host = 1;
7463 _scsih_fw_event_cleanup_queue(ioc);
7464
7465 spin_lock_irqsave(&ioc->fw_event_lock, flags);
7466 wq = ioc->firmware_event_thread;
7467 ioc->firmware_event_thread = NULL;
7468 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
7469 if (wq)
7470 destroy_workqueue(wq);
7471
7472 _scsih_ir_shutdown(ioc);
7473 mpt3sas_base_detach(ioc);
7474}
7475
7476
7477/**
7478 * _scsih_probe_boot_devices - reports 1st device
7479 * @ioc: per adapter object
7480 *
7481 * If specified in bios page 2, this routine reports the 1st
7482 * device scsi-ml or sas transport for persistent boot device
7483 * purposes. Please refer to function _scsih_determine_boot_device()
7484 */
7485static void
7486_scsih_probe_boot_devices(struct MPT3SAS_ADAPTER *ioc)
7487{
7488 u8 is_raid;
7489 void *device;
7490 struct _sas_device *sas_device;
7491 struct _raid_device *raid_device;
7492 u16 handle;
7493 u64 sas_address_parent;
7494 u64 sas_address;
7495 unsigned long flags;
7496 int rc;
7497
7498 /* no Bios, return immediately */
7499 if (!ioc->bios_pg3.BiosVersion)
7500 return;
7501
7502 device = NULL;
7503 is_raid = 0;
7504 if (ioc->req_boot_device.device) {
7505 device = ioc->req_boot_device.device;
7506 is_raid = ioc->req_boot_device.is_raid;
7507 } else if (ioc->req_alt_boot_device.device) {
7508 device = ioc->req_alt_boot_device.device;
7509 is_raid = ioc->req_alt_boot_device.is_raid;
7510 } else if (ioc->current_boot_device.device) {
7511 device = ioc->current_boot_device.device;
7512 is_raid = ioc->current_boot_device.is_raid;
7513 }
7514
7515 if (!device)
7516 return;
7517
7518 if (is_raid) {
7519 raid_device = device;
7520 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
7521 raid_device->id, 0);
7522 if (rc)
7523 _scsih_raid_device_remove(ioc, raid_device);
7524 } else {
7525 spin_lock_irqsave(&ioc->sas_device_lock, flags);
7526 sas_device = device;
7527 handle = sas_device->handle;
7528 sas_address_parent = sas_device->sas_address_parent;
7529 sas_address = sas_device->sas_address;
7530 list_move_tail(&sas_device->list, &ioc->sas_device_list);
7531 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
7532
7533 if (!mpt3sas_transport_port_add(ioc, handle,
7534 sas_address_parent)) {
7535 _scsih_sas_device_remove(ioc, sas_device);
7536 } else if (!sas_device->starget) {
f5edbe77
SR		 7537 if (!ioc->is_driver_loading) {
7538 mpt3sas_transport_port_remove(ioc,
7539 sas_address,
f92363d1 7540 sas_address_parent);
f5edbe77
SR		 7541 _scsih_sas_device_remove(ioc, sas_device);
7542 }
f92363d1
SR		 7543 }
7544 }
7545}
7546
7547/**
7548 * _scsih_probe_raid - reporting raid volumes to scsi-ml
7549 * @ioc: per adapter object
7550 *
7551 * Called during initial loading of the driver.
7552 */
7553static void
7554_scsih_probe_raid(struct MPT3SAS_ADAPTER *ioc)
7555{
7556 struct _raid_device *raid_device, *raid_next;
7557 int rc;
7558
7559 list_for_each_entry_safe(raid_device, raid_next,
7560 &ioc->raid_device_list, list) {
7561 if (raid_device->starget)
7562 continue;
7563 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
7564 raid_device->id, 0);
7565 if (rc)
7566 _scsih_raid_device_remove(ioc, raid_device);
7567 }
7568}
7569
7570/**
7571 * _scsih_probe_sas - reporting sas devices to sas transport
7572 * @ioc: per adapter object
7573 *
7574 * Called during initial loading of the driver.
7575 */
7576static void
7577_scsih_probe_sas(struct MPT3SAS_ADAPTER *ioc)
7578{
7579 struct _sas_device *sas_device, *next;
7580 unsigned long flags;
7581
7582 /* SAS Device List */
7583 list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list,
7584 list) {
7585
7586 if (!mpt3sas_transport_port_add(ioc, sas_device->handle,
7587 sas_device->sas_address_parent)) {
7588 list_del(&sas_device->list);
7589 kfree(sas_device);
7590 continue;
7591 } else if (!sas_device->starget) {
7592 /*
7593 * When asyn scanning is enabled, its not possible to
7594 * remove devices while scanning is turned on due to an
7595 * oops in scsi_sysfs_add_sdev()->add_device()->
7596 * sysfs_addrm_start()
7597 */
f5edbe77 7598 if (!ioc->is_driver_loading) {
f92363d1
SR		 7599 mpt3sas_transport_port_remove(ioc,
7600 sas_device->sas_address,
7601 sas_device->sas_address_parent);
f5edbe77
SR		 7602 list_del(&sas_device->list);
7603 kfree(sas_device);
7604 continue;
7605 }
f92363d1
SR		 7606 }
7607
7608 spin_lock_irqsave(&ioc->sas_device_lock, flags);
7609 list_move_tail(&sas_device->list, &ioc->sas_device_list);
7610 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
7611 }
7612}
7613
7614/**
7615 * _scsih_probe_devices - probing for devices
7616 * @ioc: per adapter object
7617 *
7618 * Called during initial loading of the driver.
7619 */
7620static void
7621_scsih_probe_devices(struct MPT3SAS_ADAPTER *ioc)
7622{
7623 u16 volume_mapping_flags;
7624
7625 if (!(ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR))
7626 return; /* return when IOC doesn't support initiator mode */
7627
7628 _scsih_probe_boot_devices(ioc);
7629
7630 if (ioc->ir_firmware) {
7631 volume_mapping_flags =
7632 le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) &
7633 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
7634 if (volume_mapping_flags ==
7635 MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) {
7636 _scsih_probe_raid(ioc);
7637 _scsih_probe_sas(ioc);
7638 } else {
7639 _scsih_probe_sas(ioc);
7640 _scsih_probe_raid(ioc);
7641 }
7642 } else
7643 _scsih_probe_sas(ioc);
7644}
7645
7646/**
7647 * _scsih_scan_start - scsi lld callback for .scan_start
7648 * @shost: SCSI host pointer
7649 *
7650 * The shost has the ability to discover targets on its own instead
7651 * of scanning the entire bus. In our implemention, we will kick off
7652 * firmware discovery.
7653 */
7654static void
7655_scsih_scan_start(struct Scsi_Host *shost)
7656{
7657 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7658 int rc;
7659 if (diag_buffer_enable != -1 && diag_buffer_enable != 0)
7660 mpt3sas_enable_diag_buffer(ioc, diag_buffer_enable);
7661
7662 if (disable_discovery > 0)
7663 return;
7664
7665 ioc->start_scan = 1;
7666 rc = mpt3sas_port_enable(ioc);
7667
7668 if (rc != 0)
7669 pr_info(MPT3SAS_FMT "port enable: FAILED\n", ioc->name);
7670}
7671
7672/**
7673 * _scsih_scan_finished - scsi lld callback for .scan_finished
7674 * @shost: SCSI host pointer
7675 * @time: elapsed time of the scan in jiffies
7676 *
7677 * This function will be called periodicallyn until it returns 1 with the
7678 * scsi_host and the elapsed time of the scan in jiffies. In our implemention,
7679 * we wait for firmware discovery to complete, then return 1.
7680 */
7681static int
7682_scsih_scan_finished(struct Scsi_Host *shost, unsigned long time)
7683{
7684 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7685
7686 if (disable_discovery > 0) {
7687 ioc->is_driver_loading = 0;
7688 ioc->wait_for_discovery_to_complete = 0;
7689 return 1;
7690 }
7691
7692 if (time >= (300 * HZ)) {
7693 ioc->base_cmds.status = MPT3_CMD_NOT_USED;
7694 pr_info(MPT3SAS_FMT
7695 "port enable: FAILED with timeout (timeout=300s)\n",
7696 ioc->name);
7697 ioc->is_driver_loading = 0;
7698 return 1;
7699 }
7700
7701 if (ioc->start_scan)
7702 return 0;
7703
7704 if (ioc->start_scan_failed) {
7705 pr_info(MPT3SAS_FMT
7706 "port enable: FAILED with (ioc_status=0x%08x)\n",
7707 ioc->name, ioc->start_scan_failed);
7708 ioc->is_driver_loading = 0;
7709 ioc->wait_for_discovery_to_complete = 0;
7710 ioc->remove_host = 1;
7711 return 1;
7712 }
7713
7714 pr_info(MPT3SAS_FMT "port enable: SUCCESS\n", ioc->name);
7715 ioc->base_cmds.status = MPT3_CMD_NOT_USED;
7716
7717 if (ioc->wait_for_discovery_to_complete) {
7718 ioc->wait_for_discovery_to_complete = 0;
7719 _scsih_probe_devices(ioc);
7720 }
7721 mpt3sas_base_start_watchdog(ioc);
7722 ioc->is_driver_loading = 0;
7723 return 1;
7724}
7725
7726/**
7727 * _scsih_probe - attach and add scsi host
7728 * @pdev: PCI device struct
7729 * @id: pci device id
7730 *
7731 * Returns 0 success, anything else error.
7732 */
7733static int
7734_scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
7735{
7736 struct MPT3SAS_ADAPTER *ioc;
7737 struct Scsi_Host *shost;
7738
7739 shost = scsi_host_alloc(&scsih_driver_template,
7740 sizeof(struct MPT3SAS_ADAPTER));
7741 if (!shost)
7742 return -ENODEV;
7743
7744 /* init local params */
7745 ioc = shost_priv(shost);
7746 memset(ioc, 0, sizeof(struct MPT3SAS_ADAPTER));
7747 INIT_LIST_HEAD(&ioc->list);
7748 list_add_tail(&ioc->list, &mpt3sas_ioc_list);
7749 ioc->shost = shost;
7750 ioc->id = mpt_ids++;
7751 sprintf(ioc->name, "%s%d", MPT3SAS_DRIVER_NAME, ioc->id);
7752 ioc->pdev = pdev;
7753 ioc->scsi_io_cb_idx = scsi_io_cb_idx;
7754 ioc->tm_cb_idx = tm_cb_idx;
7755 ioc->ctl_cb_idx = ctl_cb_idx;
7756 ioc->base_cb_idx = base_cb_idx;
7757 ioc->port_enable_cb_idx = port_enable_cb_idx;
7758 ioc->transport_cb_idx = transport_cb_idx;
7759 ioc->scsih_cb_idx = scsih_cb_idx;
7760 ioc->config_cb_idx = config_cb_idx;
7761 ioc->tm_tr_cb_idx = tm_tr_cb_idx;
7762 ioc->tm_tr_volume_cb_idx = tm_tr_volume_cb_idx;
7763 ioc->tm_sas_control_cb_idx = tm_sas_control_cb_idx;
7764 ioc->logging_level = logging_level;
7765 ioc->schedule_dead_ioc_flush_running_cmds = &_scsih_flush_running_cmds;
7766 /* misc semaphores and spin locks */
7767 mutex_init(&ioc->reset_in_progress_mutex);
7768 spin_lock_init(&ioc->ioc_reset_in_progress_lock);
7769 spin_lock_init(&ioc->scsi_lookup_lock);
7770 spin_lock_init(&ioc->sas_device_lock);
7771 spin_lock_init(&ioc->sas_node_lock);
7772 spin_lock_init(&ioc->fw_event_lock);
7773 spin_lock_init(&ioc->raid_device_lock);
7774 spin_lock_init(&ioc->diag_trigger_lock);
7775
7776 INIT_LIST_HEAD(&ioc->sas_device_list);
7777 INIT_LIST_HEAD(&ioc->sas_device_init_list);
7778 INIT_LIST_HEAD(&ioc->sas_expander_list);
7779 INIT_LIST_HEAD(&ioc->fw_event_list);
7780 INIT_LIST_HEAD(&ioc->raid_device_list);
7781 INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list);
7782 INIT_LIST_HEAD(&ioc->delayed_tr_list);
7783 INIT_LIST_HEAD(&ioc->delayed_tr_volume_list);
cf9bd21a 7784 INIT_LIST_HEAD(&ioc->reply_queue_list);
f92363d1
SR		 7785
7786 /* init shost parameters */
7787 shost->max_cmd_len = 32;
7788 shost->max_lun = max_lun;
7789 shost->transportt = mpt3sas_transport_template;
7790 shost->unique_id = ioc->id;
7791
7792 if (max_sectors != 0xFFFF) {
7793 if (max_sectors < 64) {
7794 shost->max_sectors = 64;
7795 pr_warn(MPT3SAS_FMT "Invalid value %d passed " \
7796 "for max_sectors, range is 64 to 32767. Assigning "
7797 "value of 64.\n", ioc->name, max_sectors);
7798 } else if (max_sectors > 32767) {
7799 shost->max_sectors = 32767;
7800 pr_warn(MPT3SAS_FMT "Invalid value %d passed " \
7801 "for max_sectors, range is 64 to 32767. Assigning "
7802 "default value of 32767.\n", ioc->name,
7803 max_sectors);
7804 } else {
7805 shost->max_sectors = max_sectors & 0xFFFE;
7806 pr_info(MPT3SAS_FMT
7807 "The max_sectors value is set to %d\n",
7808 ioc->name, shost->max_sectors);
7809 }
7810 }
7811
7812 if ((scsi_add_host(shost, &pdev->dev))) {
7813 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
7814 ioc->name, __FILE__, __LINE__, __func__);
7815 list_del(&ioc->list);
7816 goto out_add_shost_fail;
7817 }
7818
7819 /* register EEDP capabilities with SCSI layer */
7820 if (prot_mask > 0)
7821 scsi_host_set_prot(shost, prot_mask);
7822 else
7823 scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
7824 | SHOST_DIF_TYPE2_PROTECTION
7825 | SHOST_DIF_TYPE3_PROTECTION);
7826
7827 scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC);
7828
7829 /* event thread */
7830 snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
7831 "fw_event%d", ioc->id);
7832 ioc->firmware_event_thread = create_singlethread_workqueue(
7833 ioc->firmware_event_name);
7834 if (!ioc->firmware_event_thread) {
7835 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
7836 ioc->name, __FILE__, __LINE__, __func__);
7837 goto out_thread_fail;
7838 }
7839
7840 ioc->is_driver_loading = 1;
7841 if ((mpt3sas_base_attach(ioc))) {
7842 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
7843 ioc->name, __FILE__, __LINE__, __func__);
7844 goto out_attach_fail;
7845 }
7846 scsi_scan_host(shost);
7847 return 0;
7848
7849 out_attach_fail:
7850 destroy_workqueue(ioc->firmware_event_thread);
7851 out_thread_fail:
7852 list_del(&ioc->list);
7853 scsi_remove_host(shost);
7854 out_add_shost_fail:
7855 scsi_host_put(shost);
7856 return -ENODEV;
7857}
7858
7859#ifdef CONFIG_PM
7860/**
7861 * _scsih_suspend - power management suspend main entry point
7862 * @pdev: PCI device struct
7863 * @state: PM state change to (usually PCI_D3)
7864 *
7865 * Returns 0 success, anything else error.
7866 */
7867static int
7868_scsih_suspend(struct pci_dev *pdev, pm_message_t state)
7869{
7870 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7871 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7872 pci_power_t device_state;
7873
7874 mpt3sas_base_stop_watchdog(ioc);
7875 flush_scheduled_work();
7876 scsi_block_requests(shost);
7877 device_state = pci_choose_state(pdev, state);
7878 pr_info(MPT3SAS_FMT
7879 "pdev=0x%p, slot=%s, entering operating state [D%d]\n",
7880 ioc->name, pdev, pci_name(pdev), device_state);
7881
7882 pci_save_state(pdev);
7883 mpt3sas_base_free_resources(ioc);
7884 pci_set_power_state(pdev, device_state);
7885 return 0;
7886}
7887
7888/**
7889 * _scsih_resume - power management resume main entry point
7890 * @pdev: PCI device struct
7891 *
7892 * Returns 0 success, anything else error.
7893 */
7894static int
7895_scsih_resume(struct pci_dev *pdev)
7896{
7897 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7898 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7899 pci_power_t device_state = pdev->current_state;
7900 int r;
7901
7902 pr_info(MPT3SAS_FMT
7903 "pdev=0x%p, slot=%s, previous operating state [D%d]\n",
7904 ioc->name, pdev, pci_name(pdev), device_state);
7905
7906 pci_set_power_state(pdev, PCI_D0);
7907 pci_enable_wake(pdev, PCI_D0, 0);
7908 pci_restore_state(pdev);
7909 ioc->pdev = pdev;
7910 r = mpt3sas_base_map_resources(ioc);
7911 if (r)
7912 return r;
7913
7914 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, SOFT_RESET);
7915 scsi_unblock_requests(shost);
7916 mpt3sas_base_start_watchdog(ioc);
7917 return 0;
7918}
7919#endif /* CONFIG_PM */
7920
7921/**
7922 * _scsih_pci_error_detected - Called when a PCI error is detected.
7923 * @pdev: PCI device struct
7924 * @state: PCI channel state
7925 *
7926 * Description: Called when a PCI error is detected.
7927 *
7928 * Return value:
7929 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
7930 */
7931static pci_ers_result_t
7932_scsih_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
7933{
7934 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7935 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7936
7937 pr_info(MPT3SAS_FMT "PCI error: detected callback, state(%d)!!\n",
7938 ioc->name, state);
7939
7940 switch (state) {
7941 case pci_channel_io_normal:
7942 return PCI_ERS_RESULT_CAN_RECOVER;
7943 case pci_channel_io_frozen:
7944 /* Fatal error, prepare for slot reset */
7945 ioc->pci_error_recovery = 1;
7946 scsi_block_requests(ioc->shost);
7947 mpt3sas_base_stop_watchdog(ioc);
7948 mpt3sas_base_free_resources(ioc);
7949 return PCI_ERS_RESULT_NEED_RESET;
7950 case pci_channel_io_perm_failure:
7951 /* Permanent error, prepare for device removal */
7952 ioc->pci_error_recovery = 1;
7953 mpt3sas_base_stop_watchdog(ioc);
7954 _scsih_flush_running_cmds(ioc);
7955 return PCI_ERS_RESULT_DISCONNECT;
7956 }
7957 return PCI_ERS_RESULT_NEED_RESET;
7958}
7959
7960/**
7961 * _scsih_pci_slot_reset - Called when PCI slot has been reset.
7962 * @pdev: PCI device struct
7963 *
7964 * Description: This routine is called by the pci error recovery
7965 * code after the PCI slot has been reset, just before we
7966 * should resume normal operations.
7967 */
7968static pci_ers_result_t
7969_scsih_pci_slot_reset(struct pci_dev *pdev)
7970{
7971 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7972 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7973 int rc;
7974
7975 pr_info(MPT3SAS_FMT "PCI error: slot reset callback!!\n",
7976 ioc->name);
7977
7978 ioc->pci_error_recovery = 0;
7979 ioc->pdev = pdev;
7980 pci_restore_state(pdev);
7981 rc = mpt3sas_base_map_resources(ioc);
7982 if (rc)
7983 return PCI_ERS_RESULT_DISCONNECT;
7984
7985 rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
7986 FORCE_BIG_HAMMER);
7987
7988 pr_warn(MPT3SAS_FMT "hard reset: %s\n", ioc->name,
7989 (rc == 0) ? "success" : "failed");
7990
7991 if (!rc)
7992 return PCI_ERS_RESULT_RECOVERED;
7993 else
7994 return PCI_ERS_RESULT_DISCONNECT;
7995}
7996
7997/**
7998 * _scsih_pci_resume() - resume normal ops after PCI reset
7999 * @pdev: pointer to PCI device
8000 *
8001 * Called when the error recovery driver tells us that its
8002 * OK to resume normal operation. Use completion to allow
8003 * halted scsi ops to resume.
8004 */
8005static void
8006_scsih_pci_resume(struct pci_dev *pdev)
8007{
8008 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8009 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
8010
8011 pr_info(MPT3SAS_FMT "PCI error: resume callback!!\n", ioc->name);
8012
8013 pci_cleanup_aer_uncorrect_error_status(pdev);
8014 mpt3sas_base_start_watchdog(ioc);
8015 scsi_unblock_requests(ioc->shost);
8016}
8017
8018/**
8019 * _scsih_pci_mmio_enabled - Enable MMIO and dump debug registers
8020 * @pdev: pointer to PCI device
8021 */
8022static pci_ers_result_t
8023_scsih_pci_mmio_enabled(struct pci_dev *pdev)
8024{
8025 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8026 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
8027
8028 pr_info(MPT3SAS_FMT "PCI error: mmio enabled callback!!\n",
8029 ioc->name);
8030
8031 /* TODO - dump whatever for debugging purposes */
8032
8033 /* Request a slot reset. */
8034 return PCI_ERS_RESULT_NEED_RESET;
8035}
8036
8037/* raid transport support */
8038static struct raid_function_template mpt3sas_raid_functions = {
8039 .cookie = &scsih_driver_template,
8040 .is_raid = _scsih_is_raid,
8041 .get_resync = _scsih_get_resync,
8042 .get_state = _scsih_get_state,
8043};
8044
8045static struct pci_error_handlers _scsih_err_handler = {
8046 .error_detected = _scsih_pci_error_detected,
8047 .mmio_enabled = _scsih_pci_mmio_enabled,
8048 .slot_reset = _scsih_pci_slot_reset,
8049 .resume = _scsih_pci_resume,
8050};
8051
8052static struct pci_driver scsih_driver = {
8053 .name = MPT3SAS_DRIVER_NAME,
8054 .id_table = scsih_pci_table,
8055 .probe = _scsih_probe,
6f039790 8056 .remove = _scsih_remove,
f92363d1
SR		 8057 .shutdown = _scsih_shutdown,
8058 .err_handler = &_scsih_err_handler,
8059#ifdef CONFIG_PM
8060 .suspend = _scsih_suspend,
8061 .resume = _scsih_resume,
8062#endif
8063};
8064
8065
8066/**
8067 * _scsih_init - main entry point for this driver.
8068 *
8069 * Returns 0 success, anything else error.
8070 */
8071static int __init
8072_scsih_init(void)
8073{
8074 int error;
8075
8076 mpt_ids = 0;
8077
8078 pr_info("%s version %s loaded\n", MPT3SAS_DRIVER_NAME,
8079 MPT3SAS_DRIVER_VERSION);
8080
8081 mpt3sas_transport_template =
8082 sas_attach_transport(&mpt3sas_transport_functions);
8083 if (!mpt3sas_transport_template)
8084 return -ENODEV;
8085
8086/* raid transport support */
8087 mpt3sas_raid_template = raid_class_attach(&mpt3sas_raid_functions);
8088 if (!mpt3sas_raid_template) {
8089 sas_release_transport(mpt3sas_transport_template);
8090 return -ENODEV;
8091 }
8092
8093 mpt3sas_base_initialize_callback_handler();
8094
8095 /* queuecommand callback hander */
8096 scsi_io_cb_idx = mpt3sas_base_register_callback_handler(_scsih_io_done);
8097
8098 /* task managment callback handler */
8099 tm_cb_idx = mpt3sas_base_register_callback_handler(_scsih_tm_done);
8100
8101 /* base internal commands callback handler */
8102 base_cb_idx = mpt3sas_base_register_callback_handler(mpt3sas_base_done);
8103 port_enable_cb_idx = mpt3sas_base_register_callback_handler(
8104 mpt3sas_port_enable_done);
8105
8106 /* transport internal commands callback handler */
8107 transport_cb_idx = mpt3sas_base_register_callback_handler(
8108 mpt3sas_transport_done);
8109
8110 /* scsih internal commands callback handler */
8111 scsih_cb_idx = mpt3sas_base_register_callback_handler(_scsih_done);
8112
8113 /* configuration page API internal commands callback handler */
8114 config_cb_idx = mpt3sas_base_register_callback_handler(
8115 mpt3sas_config_done);
8116
8117 /* ctl module callback handler */
8118 ctl_cb_idx = mpt3sas_base_register_callback_handler(mpt3sas_ctl_done);
8119
8120 tm_tr_cb_idx = mpt3sas_base_register_callback_handler(
8121 _scsih_tm_tr_complete);
8122
8123 tm_tr_volume_cb_idx = mpt3sas_base_register_callback_handler(
8124 _scsih_tm_volume_tr_complete);
8125
8126 tm_sas_control_cb_idx = mpt3sas_base_register_callback_handler(
8127 _scsih_sas_control_complete);
8128
8129 mpt3sas_ctl_init();
8130
8131 error = pci_register_driver(&scsih_driver);
8132 if (error) {
8133 /* raid transport support */
8134 raid_class_release(mpt3sas_raid_template);
8135 sas_release_transport(mpt3sas_transport_template);
8136 }
8137
8138 return error;
8139}
8140
8141/**
8142 * _scsih_exit - exit point for this driver (when it is a module).
8143 *
8144 * Returns 0 success, anything else error.
8145 */
8146static void __exit
8147_scsih_exit(void)
8148{
8149 pr_info("mpt3sas version %s unloading\n",
8150 MPT3SAS_DRIVER_VERSION);
8151
8152 mpt3sas_ctl_exit();
8153
8154 pci_unregister_driver(&scsih_driver);
8155
8156
8157 mpt3sas_base_release_callback_handler(scsi_io_cb_idx);
8158 mpt3sas_base_release_callback_handler(tm_cb_idx);
8159 mpt3sas_base_release_callback_handler(base_cb_idx);
8160 mpt3sas_base_release_callback_handler(port_enable_cb_idx);
8161 mpt3sas_base_release_callback_handler(transport_cb_idx);
8162 mpt3sas_base_release_callback_handler(scsih_cb_idx);
8163 mpt3sas_base_release_callback_handler(config_cb_idx);
8164 mpt3sas_base_release_callback_handler(ctl_cb_idx);
8165
8166 mpt3sas_base_release_callback_handler(tm_tr_cb_idx);
8167 mpt3sas_base_release_callback_handler(tm_tr_volume_cb_idx);
8168 mpt3sas_base_release_callback_handler(tm_sas_control_cb_idx);
8169
8170/* raid transport support */
8171 raid_class_release(mpt3sas_raid_template);
8172 sas_release_transport(mpt3sas_transport_template);
8173}
8174
8175module_init(_scsih_init);
8176module_exit(_scsih_exit);
Linux 6.x block layer and io_uring tree(s)