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mpt3sas: correct scsi_{target,device} hostdata allocation
[linux-2.6-block.git] / drivers / scsi / mpt3sas / mpt3sas_scsih.c
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f92363d1
SR		 1/*
2 * Scsi Host Layer for MPT (Message Passing Technology) based controllers
3 *
4 * This code is based on drivers/scsi/mpt3sas/mpt3sas_scsih.c
48e3b985 5 * Copyright (C) 2012-2013 LSI Corporation
f92363d1
SR		 6 * (mailto:DL-MPTFusionLinux@lsi.com)
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * NO WARRANTY
19 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
20 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
21 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
22 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
23 * solely responsible for determining the appropriateness of using and
24 * distributing the Program and assumes all risks associated with its
25 * exercise of rights under this Agreement, including but not limited to
26 * the risks and costs of program errors, damage to or loss of data,
27 * programs or equipment, and unavailability or interruption of operations.
28
29 * DISCLAIMER OF LIABILITY
30 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
31 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
33 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
34 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
35 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
36 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
37
38 * You should have received a copy of the GNU General Public License
39 * along with this program; if not, write to the Free Software
40 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
41 * USA.
42 */
43
f92363d1
SR		 44#include <linux/module.h>
45#include <linux/kernel.h>
46#include <linux/init.h>
47#include <linux/errno.h>
48#include <linux/blkdev.h>
49#include <linux/sched.h>
50#include <linux/workqueue.h>
51#include <linux/delay.h>
52#include <linux/pci.h>
53#include <linux/interrupt.h>
54#include <linux/aer.h>
55#include <linux/raid_class.h>
56
57#include "mpt3sas_base.h"
58
59MODULE_AUTHOR(MPT3SAS_AUTHOR);
60MODULE_DESCRIPTION(MPT3SAS_DESCRIPTION);
61MODULE_LICENSE("GPL");
62MODULE_VERSION(MPT3SAS_DRIVER_VERSION);
63
64#define RAID_CHANNEL 1
65/* forward proto's */
66static void _scsih_expander_node_remove(struct MPT3SAS_ADAPTER *ioc,
67 struct _sas_node *sas_expander);
68static void _firmware_event_work(struct work_struct *work);
69
70static void _scsih_remove_device(struct MPT3SAS_ADAPTER *ioc,
71 struct _sas_device *sas_device);
72static int _scsih_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle,
73 u8 retry_count, u8 is_pd);
74
75static u8 _scsih_check_for_pending_tm(struct MPT3SAS_ADAPTER *ioc, u16 smid);
76
77static void _scsih_scan_start(struct Scsi_Host *shost);
78static int _scsih_scan_finished(struct Scsi_Host *shost, unsigned long time);
79
80/* global parameters */
81LIST_HEAD(mpt3sas_ioc_list);
82
83/* local parameters */
84static u8 scsi_io_cb_idx = -1;
85static u8 tm_cb_idx = -1;
86static u8 ctl_cb_idx = -1;
87static u8 base_cb_idx = -1;
88static u8 port_enable_cb_idx = -1;
89static u8 transport_cb_idx = -1;
90static u8 scsih_cb_idx = -1;
91static u8 config_cb_idx = -1;
92static int mpt_ids;
93
94static u8 tm_tr_cb_idx = -1 ;
95static u8 tm_tr_volume_cb_idx = -1 ;
96static u8 tm_sas_control_cb_idx = -1;
97
98/* command line options */
99static u32 logging_level;
100MODULE_PARM_DESC(logging_level,
101 " bits for enabling additional logging info (default=0)");
102
103
104static ushort max_sectors = 0xFFFF;
105module_param(max_sectors, ushort, 0);
106MODULE_PARM_DESC(max_sectors, "max sectors, range 64 to 32767 default=32767");
107
108
109static int missing_delay[2] = {-1, -1};
110module_param_array(missing_delay, int, NULL, 0);
111MODULE_PARM_DESC(missing_delay, " device missing delay , io missing delay");
112
113/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
114#define MPT3SAS_MAX_LUN (16895)
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;
193 void *event_data;
194};
195
196/* raid transport support */
197static struct raid_template *mpt3sas_raid_template;
198
199/**
200 * struct _scsi_io_transfer - scsi io transfer
201 * @handle: sas device handle (assigned by firmware)
202 * @is_raid: flag set for hidden raid components
203 * @dir: DMA_TO_DEVICE, DMA_FROM_DEVICE,
204 * @data_length: data transfer length
205 * @data_dma: dma pointer to data
206 * @sense: sense data
207 * @lun: lun number
208 * @cdb_length: cdb length
209 * @cdb: cdb contents
210 * @timeout: timeout for this command
211 * @VF_ID: virtual function id
212 * @VP_ID: virtual port id
213 * @valid_reply: flag set for reply message
214 * @sense_length: sense length
215 * @ioc_status: ioc status
216 * @scsi_state: scsi state
217 * @scsi_status: scsi staus
218 * @log_info: log information
219 * @transfer_length: data length transfer when there is a reply message
220 *
221 * Used for sending internal scsi commands to devices within this module.
222 * Refer to _scsi_send_scsi_io().
223 */
224struct _scsi_io_transfer {
225 u16 handle;
226 u8 is_raid;
227 enum dma_data_direction dir;
228 u32 data_length;
229 dma_addr_t data_dma;
230 u8 sense[SCSI_SENSE_BUFFERSIZE];
231 u32 lun;
232 u8 cdb_length;
233 u8 cdb[32];
234 u8 timeout;
235 u8 VF_ID;
236 u8 VP_ID;
237 u8 valid_reply;
238 /* the following bits are only valid when 'valid_reply = 1' */
239 u32 sense_length;
240 u16 ioc_status;
241 u8 scsi_state;
242 u8 scsi_status;
243 u32 log_info;
244 u32 transfer_length;
245};
246
247/*
248 * The pci device ids are defined in mpi/mpi2_cnfg.h.
249 */
250static DEFINE_PCI_DEVICE_TABLE(scsih_pci_table) = {
251 /* Fury ~ 3004 and 3008 */
252 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3004,
253 PCI_ANY_ID, PCI_ANY_ID },
254 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3008,
255 PCI_ANY_ID, PCI_ANY_ID },
256 /* Invader ~ 3108 */
257 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_1,
258 PCI_ANY_ID, PCI_ANY_ID },
259 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_2,
260 PCI_ANY_ID, PCI_ANY_ID },
261 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_5,
262 PCI_ANY_ID, PCI_ANY_ID },
263 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_6,
264 PCI_ANY_ID, PCI_ANY_ID },
265 {0} /* Terminating entry */
266};
267MODULE_DEVICE_TABLE(pci, scsih_pci_table);
268
269/**
270 * _scsih_set_debug_level - global setting of ioc->logging_level.
271 *
272 * Note: The logging levels are defined in mpt3sas_debug.h.
273 */
274static int
275_scsih_set_debug_level(const char *val, struct kernel_param *kp)
276{
277 int ret = param_set_int(val, kp);
278 struct MPT3SAS_ADAPTER *ioc;
279
280 if (ret)
281 return ret;
282
283 pr_info("setting logging_level(0x%08x)\n", logging_level);
284 list_for_each_entry(ioc, &mpt3sas_ioc_list, list)
285 ioc->logging_level = logging_level;
286 return 0;
287}
288module_param_call(logging_level, _scsih_set_debug_level, param_get_int,
289 &logging_level, 0644);
290
291/**
292 * _scsih_srch_boot_sas_address - search based on sas_address
293 * @sas_address: sas address
294 * @boot_device: boot device object from bios page 2
295 *
296 * Returns 1 when there's a match, 0 means no match.
297 */
298static inline int
299_scsih_srch_boot_sas_address(u64 sas_address,
300 Mpi2BootDeviceSasWwid_t *boot_device)
301{
302 return (sas_address == le64_to_cpu(boot_device->SASAddress)) ? 1 : 0;
303}
304
305/**
306 * _scsih_srch_boot_device_name - search based on device name
307 * @device_name: device name specified in INDENTIFY fram
308 * @boot_device: boot device object from bios page 2
309 *
310 * Returns 1 when there's a match, 0 means no match.
311 */
312static inline int
313_scsih_srch_boot_device_name(u64 device_name,
314 Mpi2BootDeviceDeviceName_t *boot_device)
315{
316 return (device_name == le64_to_cpu(boot_device->DeviceName)) ? 1 : 0;
317}
318
319/**
320 * _scsih_srch_boot_encl_slot - search based on enclosure_logical_id/slot
321 * @enclosure_logical_id: enclosure logical id
322 * @slot_number: slot number
323 * @boot_device: boot device object from bios page 2
324 *
325 * Returns 1 when there's a match, 0 means no match.
326 */
327static inline int
328_scsih_srch_boot_encl_slot(u64 enclosure_logical_id, u16 slot_number,
329 Mpi2BootDeviceEnclosureSlot_t *boot_device)
330{
331 return (enclosure_logical_id == le64_to_cpu(boot_device->
332 EnclosureLogicalID) && slot_number == le16_to_cpu(boot_device->
333 SlotNumber)) ? 1 : 0;
334}
335
336/**
337 * _scsih_is_boot_device - search for matching boot device.
338 * @sas_address: sas address
339 * @device_name: device name specified in INDENTIFY fram
340 * @enclosure_logical_id: enclosure logical id
341 * @slot_number: slot number
342 * @form: specifies boot device form
343 * @boot_device: boot device object from bios page 2
344 *
345 * Returns 1 when there's a match, 0 means no match.
346 */
347static int
348_scsih_is_boot_device(u64 sas_address, u64 device_name,
349 u64 enclosure_logical_id, u16 slot, u8 form,
350 Mpi2BiosPage2BootDevice_t *boot_device)
351{
352 int rc = 0;
353
354 switch (form) {
355 case MPI2_BIOSPAGE2_FORM_SAS_WWID:
356 if (!sas_address)
357 break;
358 rc = _scsih_srch_boot_sas_address(
359 sas_address, &boot_device->SasWwid);
360 break;
361 case MPI2_BIOSPAGE2_FORM_ENCLOSURE_SLOT:
362 if (!enclosure_logical_id)
363 break;
364 rc = _scsih_srch_boot_encl_slot(
365 enclosure_logical_id,
366 slot, &boot_device->EnclosureSlot);
367 break;
368 case MPI2_BIOSPAGE2_FORM_DEVICE_NAME:
369 if (!device_name)
370 break;
371 rc = _scsih_srch_boot_device_name(
372 device_name, &boot_device->DeviceName);
373 break;
374 case MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED:
375 break;
376 }
377
378 return rc;
379}
380
381/**
382 * _scsih_get_sas_address - set the sas_address for given device handle
383 * @handle: device handle
384 * @sas_address: sas address
385 *
386 * Returns 0 success, non-zero when failure
387 */
388static int
389_scsih_get_sas_address(struct MPT3SAS_ADAPTER *ioc, u16 handle,
390 u64 *sas_address)
391{
392 Mpi2SasDevicePage0_t sas_device_pg0;
393 Mpi2ConfigReply_t mpi_reply;
394 u32 ioc_status;
395
396 *sas_address = 0;
397
398 if (handle <= ioc->sas_hba.num_phys) {
399 *sas_address = ioc->sas_hba.sas_address;
400 return 0;
401 }
402
403 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
404 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
405 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", ioc->name,
406 __FILE__, __LINE__, __func__);
407 return -ENXIO;
408 }
409
410 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
411 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
412 *sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
413 return 0;
414 }
415
416 /* we hit this becuase the given parent handle doesn't exist */
417 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
418 return -ENXIO;
419
420 /* else error case */
421 pr_err(MPT3SAS_FMT
422 "handle(0x%04x), ioc_status(0x%04x), failure at %s:%d/%s()!\n",
423 ioc->name, handle, ioc_status,
424 __FILE__, __LINE__, __func__);
425 return -EIO;
426}
427
428/**
429 * _scsih_determine_boot_device - determine boot device.
430 * @ioc: per adapter object
431 * @device: either sas_device or raid_device object
432 * @is_raid: [flag] 1 = raid object, 0 = sas object
433 *
434 * Determines whether this device should be first reported device to
435 * to scsi-ml or sas transport, this purpose is for persistent boot device.
436 * There are primary, alternate, and current entries in bios page 2. The order
437 * priority is primary, alternate, then current. This routine saves
438 * the corresponding device object and is_raid flag in the ioc object.
439 * The saved data to be used later in _scsih_probe_boot_devices().
440 */
441static void
442_scsih_determine_boot_device(struct MPT3SAS_ADAPTER *ioc,
443 void *device, u8 is_raid)
444{
445 struct _sas_device *sas_device;
446 struct _raid_device *raid_device;
447 u64 sas_address;
448 u64 device_name;
449 u64 enclosure_logical_id;
450 u16 slot;
451
452 /* only process this function when driver loads */
453 if (!ioc->is_driver_loading)
454 return;
455
456 /* no Bios, return immediately */
457 if (!ioc->bios_pg3.BiosVersion)
458 return;
459
460 if (!is_raid) {
461 sas_device = device;
462 sas_address = sas_device->sas_address;
463 device_name = sas_device->device_name;
464 enclosure_logical_id = sas_device->enclosure_logical_id;
465 slot = sas_device->slot;
466 } else {
467 raid_device = device;
468 sas_address = raid_device->wwid;
469 device_name = 0;
470 enclosure_logical_id = 0;
471 slot = 0;
472 }
473
474 if (!ioc->req_boot_device.device) {
475 if (_scsih_is_boot_device(sas_address, device_name,
476 enclosure_logical_id, slot,
477 (ioc->bios_pg2.ReqBootDeviceForm &
478 MPI2_BIOSPAGE2_FORM_MASK),
479 &ioc->bios_pg2.RequestedBootDevice)) {
480 dinitprintk(ioc, pr_info(MPT3SAS_FMT
481 "%s: req_boot_device(0x%016llx)\n",
482 ioc->name, __func__,
483 (unsigned long long)sas_address));
484 ioc->req_boot_device.device = device;
485 ioc->req_boot_device.is_raid = is_raid;
486 }
487 }
488
489 if (!ioc->req_alt_boot_device.device) {
490 if (_scsih_is_boot_device(sas_address, device_name,
491 enclosure_logical_id, slot,
492 (ioc->bios_pg2.ReqAltBootDeviceForm &
493 MPI2_BIOSPAGE2_FORM_MASK),
494 &ioc->bios_pg2.RequestedAltBootDevice)) {
495 dinitprintk(ioc, pr_info(MPT3SAS_FMT
496 "%s: req_alt_boot_device(0x%016llx)\n",
497 ioc->name, __func__,
498 (unsigned long long)sas_address));
499 ioc->req_alt_boot_device.device = device;
500 ioc->req_alt_boot_device.is_raid = is_raid;
501 }
502 }
503
504 if (!ioc->current_boot_device.device) {
505 if (_scsih_is_boot_device(sas_address, device_name,
506 enclosure_logical_id, slot,
507 (ioc->bios_pg2.CurrentBootDeviceForm &
508 MPI2_BIOSPAGE2_FORM_MASK),
509 &ioc->bios_pg2.CurrentBootDevice)) {
510 dinitprintk(ioc, pr_info(MPT3SAS_FMT
511 "%s: current_boot_device(0x%016llx)\n",
512 ioc->name, __func__,
513 (unsigned long long)sas_address));
514 ioc->current_boot_device.device = device;
515 ioc->current_boot_device.is_raid = is_raid;
516 }
517 }
518}
519
520/**
521 * mpt3sas_scsih_sas_device_find_by_sas_address - sas device search
522 * @ioc: per adapter object
523 * @sas_address: sas address
524 * Context: Calling function should acquire ioc->sas_device_lock
525 *
526 * This searches for sas_device based on sas_address, then return sas_device
527 * object.
528 */
529struct _sas_device *
530mpt3sas_scsih_sas_device_find_by_sas_address(struct MPT3SAS_ADAPTER *ioc,
531 u64 sas_address)
532{
533 struct _sas_device *sas_device;
534
535 list_for_each_entry(sas_device, &ioc->sas_device_list, list)
536 if (sas_device->sas_address == sas_address)
537 return sas_device;
538
539 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
540 if (sas_device->sas_address == sas_address)
541 return sas_device;
542
543 return NULL;
544}
545
546/**
547 * _scsih_sas_device_find_by_handle - sas device search
548 * @ioc: per adapter object
549 * @handle: sas device handle (assigned by firmware)
550 * Context: Calling function should acquire ioc->sas_device_lock
551 *
552 * This searches for sas_device based on sas_address, then return sas_device
553 * object.
554 */
555static struct _sas_device *
556_scsih_sas_device_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
557{
558 struct _sas_device *sas_device;
559
560 list_for_each_entry(sas_device, &ioc->sas_device_list, list)
561 if (sas_device->handle == handle)
562 return sas_device;
563
564 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
565 if (sas_device->handle == handle)
566 return sas_device;
567
568 return NULL;
569}
570
571/**
572 * _scsih_sas_device_remove - remove sas_device from list.
573 * @ioc: per adapter object
574 * @sas_device: the sas_device object
575 * Context: This function will acquire ioc->sas_device_lock.
576 *
577 * Removing object and freeing associated memory from the ioc->sas_device_list.
578 */
579static void
580_scsih_sas_device_remove(struct MPT3SAS_ADAPTER *ioc,
581 struct _sas_device *sas_device)
582{
583 unsigned long flags;
584
585 if (!sas_device)
586 return;
587
588 spin_lock_irqsave(&ioc->sas_device_lock, flags);
589 list_del(&sas_device->list);
590 kfree(sas_device);
591 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
592}
593
594/**
595 * _scsih_device_remove_by_handle - removing device object by handle
596 * @ioc: per adapter object
597 * @handle: device handle
598 *
599 * Return nothing.
600 */
601static void
602_scsih_device_remove_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
603{
604 struct _sas_device *sas_device;
605 unsigned long flags;
606
607 if (ioc->shost_recovery)
608 return;
609
610 spin_lock_irqsave(&ioc->sas_device_lock, flags);
611 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
612 if (sas_device)
613 list_del(&sas_device->list);
614 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
615 if (sas_device)
616 _scsih_remove_device(ioc, sas_device);
617}
618
619/**
620 * mpt3sas_device_remove_by_sas_address - removing device object by sas address
621 * @ioc: per adapter object
622 * @sas_address: device sas_address
623 *
624 * Return nothing.
625 */
626void
627mpt3sas_device_remove_by_sas_address(struct MPT3SAS_ADAPTER *ioc,
628 u64 sas_address)
629{
630 struct _sas_device *sas_device;
631 unsigned long flags;
632
633 if (ioc->shost_recovery)
634 return;
635
636 spin_lock_irqsave(&ioc->sas_device_lock, flags);
637 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
638 sas_address);
639 if (sas_device)
640 list_del(&sas_device->list);
641 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
642 if (sas_device)
643 _scsih_remove_device(ioc, sas_device);
644}
645
646/**
647 * _scsih_sas_device_add - insert sas_device to the list.
648 * @ioc: per adapter object
649 * @sas_device: the sas_device object
650 * Context: This function will acquire ioc->sas_device_lock.
651 *
652 * Adding new object to the ioc->sas_device_list.
653 */
654static void
655_scsih_sas_device_add(struct MPT3SAS_ADAPTER *ioc,
656 struct _sas_device *sas_device)
657{
658 unsigned long flags;
659
660 dewtprintk(ioc, pr_info(MPT3SAS_FMT
661 "%s: handle(0x%04x), sas_addr(0x%016llx)\n",
662 ioc->name, __func__, sas_device->handle,
663 (unsigned long long)sas_device->sas_address));
664
665 spin_lock_irqsave(&ioc->sas_device_lock, flags);
666 list_add_tail(&sas_device->list, &ioc->sas_device_list);
667 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
668
669 if (!mpt3sas_transport_port_add(ioc, sas_device->handle,
670 sas_device->sas_address_parent)) {
671 _scsih_sas_device_remove(ioc, sas_device);
672 } else if (!sas_device->starget) {
673 /*
674 * When asyn scanning is enabled, its not possible to remove
675 * devices while scanning is turned on due to an oops in
676 * scsi_sysfs_add_sdev()->add_device()->sysfs_addrm_start()
677 */
f5edbe77 678 if (!ioc->is_driver_loading) {
f92363d1
SR		 679 mpt3sas_transport_port_remove(ioc,
680 sas_device->sas_address,
681 sas_device->sas_address_parent);
f5edbe77
SR		 682 _scsih_sas_device_remove(ioc, sas_device);
683 }
f92363d1
SR		 684 }
685}
686
687/**
688 * _scsih_sas_device_init_add - insert sas_device to the list.
689 * @ioc: per adapter object
690 * @sas_device: the sas_device object
691 * Context: This function will acquire ioc->sas_device_lock.
692 *
693 * Adding new object at driver load time to the ioc->sas_device_init_list.
694 */
695static void
696_scsih_sas_device_init_add(struct MPT3SAS_ADAPTER *ioc,
697 struct _sas_device *sas_device)
698{
699 unsigned long flags;
700
701 dewtprintk(ioc, pr_info(MPT3SAS_FMT
702 "%s: handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name,
703 __func__, sas_device->handle,
704 (unsigned long long)sas_device->sas_address));
705
706 spin_lock_irqsave(&ioc->sas_device_lock, flags);
707 list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
708 _scsih_determine_boot_device(ioc, sas_device, 0);
709 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
710}
711
712/**
713 * _scsih_raid_device_find_by_id - raid device search
714 * @ioc: per adapter object
715 * @id: sas device target id
716 * @channel: sas device channel
717 * Context: Calling function should acquire ioc->raid_device_lock
718 *
719 * This searches for raid_device based on target id, then return raid_device
720 * object.
721 */
722static struct _raid_device *
723_scsih_raid_device_find_by_id(struct MPT3SAS_ADAPTER *ioc, int id, int channel)
724{
725 struct _raid_device *raid_device, *r;
726
727 r = NULL;
728 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
729 if (raid_device->id == id && raid_device->channel == channel) {
730 r = raid_device;
731 goto out;
732 }
733 }
734
735 out:
736 return r;
737}
738
739/**
740 * _scsih_raid_device_find_by_handle - raid device search
741 * @ioc: per adapter object
742 * @handle: sas device handle (assigned by firmware)
743 * Context: Calling function should acquire ioc->raid_device_lock
744 *
745 * This searches for raid_device based on handle, then return raid_device
746 * object.
747 */
748static struct _raid_device *
749_scsih_raid_device_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
750{
751 struct _raid_device *raid_device, *r;
752
753 r = NULL;
754 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
755 if (raid_device->handle != handle)
756 continue;
757 r = raid_device;
758 goto out;
759 }
760
761 out:
762 return r;
763}
764
765/**
766 * _scsih_raid_device_find_by_wwid - raid device search
767 * @ioc: per adapter object
768 * @handle: sas device handle (assigned by firmware)
769 * Context: Calling function should acquire ioc->raid_device_lock
770 *
771 * This searches for raid_device based on wwid, then return raid_device
772 * object.
773 */
774static struct _raid_device *
775_scsih_raid_device_find_by_wwid(struct MPT3SAS_ADAPTER *ioc, u64 wwid)
776{
777 struct _raid_device *raid_device, *r;
778
779 r = NULL;
780 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
781 if (raid_device->wwid != wwid)
782 continue;
783 r = raid_device;
784 goto out;
785 }
786
787 out:
788 return r;
789}
790
791/**
792 * _scsih_raid_device_add - add raid_device object
793 * @ioc: per adapter object
794 * @raid_device: raid_device object
795 *
796 * This is added to the raid_device_list link list.
797 */
798static void
799_scsih_raid_device_add(struct MPT3SAS_ADAPTER *ioc,
800 struct _raid_device *raid_device)
801{
802 unsigned long flags;
803
804 dewtprintk(ioc, pr_info(MPT3SAS_FMT
805 "%s: handle(0x%04x), wwid(0x%016llx)\n", ioc->name, __func__,
806 raid_device->handle, (unsigned long long)raid_device->wwid));
807
808 spin_lock_irqsave(&ioc->raid_device_lock, flags);
809 list_add_tail(&raid_device->list, &ioc->raid_device_list);
810 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
811}
812
813/**
814 * _scsih_raid_device_remove - delete raid_device object
815 * @ioc: per adapter object
816 * @raid_device: raid_device object
817 *
818 */
819static void
820_scsih_raid_device_remove(struct MPT3SAS_ADAPTER *ioc,
821 struct _raid_device *raid_device)
822{
823 unsigned long flags;
824
825 spin_lock_irqsave(&ioc->raid_device_lock, flags);
826 list_del(&raid_device->list);
827 kfree(raid_device);
828 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
829}
830
831/**
832 * mpt3sas_scsih_expander_find_by_handle - expander device search
833 * @ioc: per adapter object
834 * @handle: expander handle (assigned by firmware)
835 * Context: Calling function should acquire ioc->sas_device_lock
836 *
837 * This searches for expander device based on handle, then returns the
838 * sas_node object.
839 */
840struct _sas_node *
841mpt3sas_scsih_expander_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
842{
843 struct _sas_node *sas_expander, *r;
844
845 r = NULL;
846 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
847 if (sas_expander->handle != handle)
848 continue;
849 r = sas_expander;
850 goto out;
851 }
852 out:
853 return r;
854}
855
856/**
857 * mpt3sas_scsih_expander_find_by_sas_address - expander device search
858 * @ioc: per adapter object
859 * @sas_address: sas address
860 * Context: Calling function should acquire ioc->sas_node_lock.
861 *
862 * This searches for expander device based on sas_address, then returns the
863 * sas_node object.
864 */
865struct _sas_node *
866mpt3sas_scsih_expander_find_by_sas_address(struct MPT3SAS_ADAPTER *ioc,
867 u64 sas_address)
868{
869 struct _sas_node *sas_expander, *r;
870
871 r = NULL;
872 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
873 if (sas_expander->sas_address != sas_address)
874 continue;
875 r = sas_expander;
876 goto out;
877 }
878 out:
879 return r;
880}
881
882/**
883 * _scsih_expander_node_add - insert expander device to the list.
884 * @ioc: per adapter object
885 * @sas_expander: the sas_device object
886 * Context: This function will acquire ioc->sas_node_lock.
887 *
888 * Adding new object to the ioc->sas_expander_list.
889 *
890 * Return nothing.
891 */
892static void
893_scsih_expander_node_add(struct MPT3SAS_ADAPTER *ioc,
894 struct _sas_node *sas_expander)
895{
896 unsigned long flags;
897
898 spin_lock_irqsave(&ioc->sas_node_lock, flags);
899 list_add_tail(&sas_expander->list, &ioc->sas_expander_list);
900 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
901}
902
903/**
904 * _scsih_is_end_device - determines if device is an end device
905 * @device_info: bitfield providing information about the device.
906 * Context: none
907 *
908 * Returns 1 if end device.
909 */
910static int
911_scsih_is_end_device(u32 device_info)
912{
913 if (device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE &&
914 ((device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) |
915 (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) |
916 (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))
917 return 1;
918 else
919 return 0;
920}
921
922/**
923 * _scsih_scsi_lookup_get - returns scmd entry
924 * @ioc: per adapter object
925 * @smid: system request message index
926 *
927 * Returns the smid stored scmd pointer.
928 */
929static struct scsi_cmnd *
930_scsih_scsi_lookup_get(struct MPT3SAS_ADAPTER *ioc, u16 smid)
931{
932 return ioc->scsi_lookup[smid - 1].scmd;
933}
934
935/**
936 * _scsih_scsi_lookup_get_clear - returns scmd entry
937 * @ioc: per adapter object
938 * @smid: system request message index
939 *
940 * Returns the smid stored scmd pointer.
941 * Then will derefrence the stored scmd pointer.
942 */
943static inline struct scsi_cmnd *
944_scsih_scsi_lookup_get_clear(struct MPT3SAS_ADAPTER *ioc, u16 smid)
945{
946 unsigned long flags;
947 struct scsi_cmnd *scmd;
948
949 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
950 scmd = ioc->scsi_lookup[smid - 1].scmd;
951 ioc->scsi_lookup[smid - 1].scmd = NULL;
952 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
953
954 return scmd;
955}
956
957/**
958 * _scsih_scsi_lookup_find_by_scmd - scmd lookup
959 * @ioc: per adapter object
960 * @smid: system request message index
961 * @scmd: pointer to scsi command object
962 * Context: This function will acquire ioc->scsi_lookup_lock.
963 *
964 * This will search for a scmd pointer in the scsi_lookup array,
965 * returning the revelent smid. A returned value of zero means invalid.
966 */
967static u16
968_scsih_scsi_lookup_find_by_scmd(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd
969 *scmd)
970{
971 u16 smid;
972 unsigned long flags;
973 int i;
974
975 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
976 smid = 0;
977 for (i = 0; i < ioc->scsiio_depth; i++) {
978 if (ioc->scsi_lookup[i].scmd == scmd) {
979 smid = ioc->scsi_lookup[i].smid;
980 goto out;
981 }
982 }
983 out:
984 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
985 return smid;
986}
987
988/**
989 * _scsih_scsi_lookup_find_by_target - search for matching channel:id
990 * @ioc: per adapter object
991 * @id: target id
992 * @channel: channel
993 * Context: This function will acquire ioc->scsi_lookup_lock.
994 *
995 * This will search for a matching channel:id in the scsi_lookup array,
996 * returning 1 if found.
997 */
998static u8
999_scsih_scsi_lookup_find_by_target(struct MPT3SAS_ADAPTER *ioc, int id,
1000 int channel)
1001{
1002 u8 found;
1003 unsigned long flags;
1004 int i;
1005
1006 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1007 found = 0;
1008 for (i = 0 ; i < ioc->scsiio_depth; i++) {
1009 if (ioc->scsi_lookup[i].scmd &&
1010 (ioc->scsi_lookup[i].scmd->device->id == id &&
1011 ioc->scsi_lookup[i].scmd->device->channel == channel)) {
1012 found = 1;
1013 goto out;
1014 }
1015 }
1016 out:
1017 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1018 return found;
1019}
1020
1021/**
1022 * _scsih_scsi_lookup_find_by_lun - search for matching channel:id:lun
1023 * @ioc: per adapter object
1024 * @id: target id
1025 * @lun: lun number
1026 * @channel: channel
1027 * Context: This function will acquire ioc->scsi_lookup_lock.
1028 *
1029 * This will search for a matching channel:id:lun in the scsi_lookup array,
1030 * returning 1 if found.
1031 */
1032static u8
1033_scsih_scsi_lookup_find_by_lun(struct MPT3SAS_ADAPTER *ioc, int id,
1034 unsigned int lun, int channel)
1035{
1036 u8 found;
1037 unsigned long flags;
1038 int i;
1039
1040 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1041 found = 0;
1042 for (i = 0 ; i < ioc->scsiio_depth; i++) {
1043 if (ioc->scsi_lookup[i].scmd &&
1044 (ioc->scsi_lookup[i].scmd->device->id == id &&
1045 ioc->scsi_lookup[i].scmd->device->channel == channel &&
1046 ioc->scsi_lookup[i].scmd->device->lun == lun)) {
1047 found = 1;
1048 goto out;
1049 }
1050 }
1051 out:
1052 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1053 return found;
1054}
1055
1056
1057static void
1058_scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth)
1059{
1060 struct Scsi_Host *shost = sdev->host;
1061 int max_depth;
1062 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
1063 struct MPT3SAS_DEVICE *sas_device_priv_data;
1064 struct MPT3SAS_TARGET *sas_target_priv_data;
1065 struct _sas_device *sas_device;
1066 unsigned long flags;
1067
1068 max_depth = shost->can_queue;
1069
1070 /* limit max device queue for SATA to 32 */
1071 sas_device_priv_data = sdev->hostdata;
1072 if (!sas_device_priv_data)
1073 goto not_sata;
1074 sas_target_priv_data = sas_device_priv_data->sas_target;
1075 if (!sas_target_priv_data)
1076 goto not_sata;
1077 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))
1078 goto not_sata;
1079 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1080 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
1081 sas_device_priv_data->sas_target->sas_address);
1082 if (sas_device && sas_device->device_info &
1083 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1084 max_depth = MPT3SAS_SATA_QUEUE_DEPTH;
1085 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1086
1087 not_sata:
1088
1089 if (!sdev->tagged_supported)
1090 max_depth = 1;
1091 if (qdepth > max_depth)
1092 qdepth = max_depth;
1093 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1094}
1095
1096/**
1097 * _scsih_change_queue_depth - setting device queue depth
1098 * @sdev: scsi device struct
1099 * @qdepth: requested queue depth
1100 * @reason: SCSI_QDEPTH_DEFAULT/SCSI_QDEPTH_QFULL/SCSI_QDEPTH_RAMP_UP
1101 * (see include/scsi/scsi_host.h for definition)
1102 *
1103 * Returns queue depth.
1104 */
1105static int
1106_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1107{
1108 if (reason == SCSI_QDEPTH_DEFAULT || reason == SCSI_QDEPTH_RAMP_UP)
1109 _scsih_adjust_queue_depth(sdev, qdepth);
1110 else if (reason == SCSI_QDEPTH_QFULL)
1111 scsi_track_queue_full(sdev, qdepth);
1112 else
1113 return -EOPNOTSUPP;
1114
1115 if (sdev->inquiry_len > 7)
1116 sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), " \
1117 "simple(%d), ordered(%d), scsi_level(%d), cmd_que(%d)\n",
1118 sdev->queue_depth, sdev->tagged_supported, sdev->simple_tags,
1119 sdev->ordered_tags, sdev->scsi_level,
1120 (sdev->inquiry[7] & 2) >> 1);
1121
1122 return sdev->queue_depth;
1123}
1124
1125/**
1126 * _scsih_change_queue_type - changing device queue tag type
1127 * @sdev: scsi device struct
1128 * @tag_type: requested tag type
1129 *
1130 * Returns queue tag type.
1131 */
1132static int
1133_scsih_change_queue_type(struct scsi_device *sdev, int tag_type)
1134{
1135 if (sdev->tagged_supported) {
1136 scsi_set_tag_type(sdev, tag_type);
1137 if (tag_type)
1138 scsi_activate_tcq(sdev, sdev->queue_depth);
1139 else
1140 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1141 } else
1142 tag_type = 0;
1143
1144 return tag_type;
1145}
1146
1147
1148/**
1149 * _scsih_target_alloc - target add routine
1150 * @starget: scsi target struct
1151 *
1152 * Returns 0 if ok. Any other return is assumed to be an error and
1153 * the device is ignored.
1154 */
1155static int
1156_scsih_target_alloc(struct scsi_target *starget)
1157{
1158 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1159 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
1160 struct MPT3SAS_TARGET *sas_target_priv_data;
1161 struct _sas_device *sas_device;
1162 struct _raid_device *raid_device;
1163 unsigned long flags;
1164 struct sas_rphy *rphy;
1165
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);
2495 kfree(fw_event->event_data);
2496 kfree(fw_event);
2497 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2498}
2499
2500
2501 /**
2502 * mpt3sas_send_trigger_data_event - send event for processing trigger data
2503 * @ioc: per adapter object
2504 * @event_data: trigger event data
2505 *
2506 * Return nothing.
2507 */
2508void
2509mpt3sas_send_trigger_data_event(struct MPT3SAS_ADAPTER *ioc,
2510 struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data)
2511{
2512 struct fw_event_work *fw_event;
2513
2514 if (ioc->is_driver_loading)
2515 return;
2516 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
2517 if (!fw_event)
2518 return;
2519 fw_event->event_data = kzalloc(sizeof(*event_data), GFP_ATOMIC);
2520 if (!fw_event->event_data)
2521 return;
2522 fw_event->event = MPT3SAS_PROCESS_TRIGGER_DIAG;
2523 fw_event->ioc = ioc;
2524 memcpy(fw_event->event_data, event_data, sizeof(*event_data));
2525 _scsih_fw_event_add(ioc, fw_event);
2526}
2527
2528/**
2529 * _scsih_error_recovery_delete_devices - remove devices not responding
2530 * @ioc: per adapter object
2531 *
2532 * Return nothing.
2533 */
2534static void
2535_scsih_error_recovery_delete_devices(struct MPT3SAS_ADAPTER *ioc)
2536{
2537 struct fw_event_work *fw_event;
2538
2539 if (ioc->is_driver_loading)
2540 return;
2541 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
2542 if (!fw_event)
2543 return;
2544 fw_event->event = MPT3SAS_REMOVE_UNRESPONDING_DEVICES;
2545 fw_event->ioc = ioc;
2546 _scsih_fw_event_add(ioc, fw_event);
2547}
2548
2549/**
2550 * mpt3sas_port_enable_complete - port enable completed (fake event)
2551 * @ioc: per adapter object
2552 *
2553 * Return nothing.
2554 */
2555void
2556mpt3sas_port_enable_complete(struct MPT3SAS_ADAPTER *ioc)
2557{
2558 struct fw_event_work *fw_event;
2559
2560 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
2561 if (!fw_event)
2562 return;
2563 fw_event->event = MPT3SAS_PORT_ENABLE_COMPLETE;
2564 fw_event->ioc = ioc;
2565 _scsih_fw_event_add(ioc, fw_event);
2566}
2567
2568/**
2569 * _scsih_fw_event_cleanup_queue - cleanup event queue
2570 * @ioc: per adapter object
2571 *
2572 * Walk the firmware event queue, either killing timers, or waiting
2573 * for outstanding events to complete
2574 *
2575 * Return nothing.
2576 */
2577static void
2578_scsih_fw_event_cleanup_queue(struct MPT3SAS_ADAPTER *ioc)
2579{
2580 struct fw_event_work *fw_event, *next;
2581
2582 if (list_empty(&ioc->fw_event_list) ||
2583 !ioc->firmware_event_thread || in_interrupt())
2584 return;
2585
2586 list_for_each_entry_safe(fw_event, next, &ioc->fw_event_list, list) {
2587 if (cancel_delayed_work(&fw_event->delayed_work)) {
2588 _scsih_fw_event_free(ioc, fw_event);
2589 continue;
2590 }
2591 fw_event->cancel_pending_work = 1;
2592 }
2593}
2594
2595/**
2596 * _scsih_ublock_io_all_device - unblock every device
2597 * @ioc: per adapter object
2598 *
2599 * change the device state from block to running
2600 */
2601static void
2602_scsih_ublock_io_all_device(struct MPT3SAS_ADAPTER *ioc)
2603{
2604 struct MPT3SAS_DEVICE *sas_device_priv_data;
2605 struct scsi_device *sdev;
2606
2607 shost_for_each_device(sdev, ioc->shost) {
2608 sas_device_priv_data = sdev->hostdata;
2609 if (!sas_device_priv_data)
2610 continue;
2611 if (!sas_device_priv_data->block)
2612 continue;
2613
2614 sas_device_priv_data->block = 0;
2615 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2616 "device_running, handle(0x%04x)\n",
2617 sas_device_priv_data->sas_target->handle));
2618 scsi_internal_device_unblock(sdev, SDEV_RUNNING);
2619 }
2620}
2621
2622
2623/**
2624 * _scsih_ublock_io_device - prepare device to be deleted
2625 * @ioc: per adapter object
2626 * @sas_addr: sas address
2627 *
2628 * unblock then put device in offline state
2629 */
2630static void
2631_scsih_ublock_io_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address)
2632{
2633 struct MPT3SAS_DEVICE *sas_device_priv_data;
2634 struct scsi_device *sdev;
2635
2636 shost_for_each_device(sdev, ioc->shost) {
2637 sas_device_priv_data = sdev->hostdata;
2638 if (!sas_device_priv_data)
2639 continue;
2640 if (sas_device_priv_data->sas_target->sas_address
2641 != sas_address)
2642 continue;
2643 if (sas_device_priv_data->block) {
2644 sas_device_priv_data->block = 0;
2645 scsi_internal_device_unblock(sdev, SDEV_RUNNING);
2646 }
2647 }
2648}
2649
2650/**
2651 * _scsih_block_io_all_device - set the device state to SDEV_BLOCK
2652 * @ioc: per adapter object
2653 * @handle: device handle
2654 *
2655 * During device pull we need to appropiately set the sdev state.
2656 */
2657static void
2658_scsih_block_io_all_device(struct MPT3SAS_ADAPTER *ioc)
2659{
2660 struct MPT3SAS_DEVICE *sas_device_priv_data;
2661 struct scsi_device *sdev;
2662
2663 shost_for_each_device(sdev, ioc->shost) {
2664 sas_device_priv_data = sdev->hostdata;
2665 if (!sas_device_priv_data)
2666 continue;
2667 if (sas_device_priv_data->block)
2668 continue;
2669 sas_device_priv_data->block = 1;
2670 scsi_internal_device_block(sdev);
2671 sdev_printk(KERN_INFO, sdev, "device_blocked, handle(0x%04x)\n",
2672 sas_device_priv_data->sas_target->handle);
2673 }
2674}
2675
2676/**
2677 * _scsih_block_io_device - set the device state to SDEV_BLOCK
2678 * @ioc: per adapter object
2679 * @handle: device handle
2680 *
2681 * During device pull we need to appropiately set the sdev state.
2682 */
2683static void
2684_scsih_block_io_device(struct MPT3SAS_ADAPTER *ioc, u16 handle)
2685{
2686 struct MPT3SAS_DEVICE *sas_device_priv_data;
2687 struct scsi_device *sdev;
2688
2689 shost_for_each_device(sdev, ioc->shost) {
2690 sas_device_priv_data = sdev->hostdata;
2691 if (!sas_device_priv_data)
2692 continue;
2693 if (sas_device_priv_data->sas_target->handle != handle)
2694 continue;
2695 if (sas_device_priv_data->block)
2696 continue;
2697 sas_device_priv_data->block = 1;
2698 scsi_internal_device_block(sdev);
2699 sdev_printk(KERN_INFO, sdev,
2700 "device_blocked, handle(0x%04x)\n", handle);
2701 }
2702}
2703
2704/**
2705 * _scsih_block_io_to_children_attached_to_ex
2706 * @ioc: per adapter object
2707 * @sas_expander: the sas_device object
2708 *
2709 * This routine set sdev state to SDEV_BLOCK for all devices
2710 * attached to this expander. This function called when expander is
2711 * pulled.
2712 */
2713static void
2714_scsih_block_io_to_children_attached_to_ex(struct MPT3SAS_ADAPTER *ioc,
2715 struct _sas_node *sas_expander)
2716{
2717 struct _sas_port *mpt3sas_port;
2718 struct _sas_device *sas_device;
2719 struct _sas_node *expander_sibling;
2720 unsigned long flags;
2721
2722 if (!sas_expander)
2723 return;
2724
2725 list_for_each_entry(mpt3sas_port,
2726 &sas_expander->sas_port_list, port_list) {
2727 if (mpt3sas_port->remote_identify.device_type ==
2728 SAS_END_DEVICE) {
2729 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2730 sas_device =
2731 mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
2732 mpt3sas_port->remote_identify.sas_address);
2733 if (sas_device)
2734 set_bit(sas_device->handle,
2735 ioc->blocking_handles);
2736 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2737 }
2738 }
2739
2740 list_for_each_entry(mpt3sas_port,
2741 &sas_expander->sas_port_list, port_list) {
2742
2743 if (mpt3sas_port->remote_identify.device_type ==
2744 SAS_EDGE_EXPANDER_DEVICE ||
2745 mpt3sas_port->remote_identify.device_type ==
2746 SAS_FANOUT_EXPANDER_DEVICE) {
2747 expander_sibling =
2748 mpt3sas_scsih_expander_find_by_sas_address(
2749 ioc, mpt3sas_port->remote_identify.sas_address);
2750 _scsih_block_io_to_children_attached_to_ex(ioc,
2751 expander_sibling);
2752 }
2753 }
2754}
2755
2756/**
2757 * _scsih_block_io_to_children_attached_directly
2758 * @ioc: per adapter object
2759 * @event_data: topology change event data
2760 *
2761 * This routine set sdev state to SDEV_BLOCK for all devices
2762 * direct attached during device pull.
2763 */
2764static void
2765_scsih_block_io_to_children_attached_directly(struct MPT3SAS_ADAPTER *ioc,
2766 Mpi2EventDataSasTopologyChangeList_t *event_data)
2767{
2768 int i;
2769 u16 handle;
2770 u16 reason_code;
f92363d1
SR		 2771
2772 for (i = 0; i < event_data->NumEntries; i++) {
2773 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
2774 if (!handle)
2775 continue;
f92363d1
SR		 2776 reason_code = event_data->PHY[i].PhyStatus &
2777 MPI2_EVENT_SAS_TOPO_RC_MASK;
2778 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING)
2779 _scsih_block_io_device(ioc, handle);
2780 }
2781}
2782
2783/**
2784 * _scsih_tm_tr_send - send task management request
2785 * @ioc: per adapter object
2786 * @handle: device handle
2787 * Context: interrupt time.
2788 *
2789 * This code is to initiate the device removal handshake protocol
2790 * with controller firmware. This function will issue target reset
2791 * using high priority request queue. It will send a sas iounit
2792 * control request (MPI2_SAS_OP_REMOVE_DEVICE) from this completion.
2793 *
2794 * This is designed to send muliple task management request at the same
2795 * time to the fifo. If the fifo is full, we will append the request,
2796 * and process it in a future completion.
2797 */
2798static void
2799_scsih_tm_tr_send(struct MPT3SAS_ADAPTER *ioc, u16 handle)
2800{
2801 Mpi2SCSITaskManagementRequest_t *mpi_request;
2802 u16 smid;
2803 struct _sas_device *sas_device;
2804 struct MPT3SAS_TARGET *sas_target_priv_data = NULL;
2805 u64 sas_address = 0;
2806 unsigned long flags;
2807 struct _tr_list *delayed_tr;
2808 u32 ioc_state;
2809
2810 if (ioc->remove_host) {
2811 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2812 "%s: host has been removed: handle(0x%04x)\n",
2813 __func__, ioc->name, handle));
2814 return;
2815 } else if (ioc->pci_error_recovery) {
2816 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2817 "%s: host in pci error recovery: handle(0x%04x)\n",
2818 __func__, ioc->name,
2819 handle));
2820 return;
2821 }
2822 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
2823 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
2824 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2825 "%s: host is not operational: handle(0x%04x)\n",
2826 __func__, ioc->name,
2827 handle));
2828 return;
2829 }
2830
2831 /* if PD, then return */
2832 if (test_bit(handle, ioc->pd_handles))
2833 return;
2834
2835 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2836 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
2837 if (sas_device && sas_device->starget &&
2838 sas_device->starget->hostdata) {
2839 sas_target_priv_data = sas_device->starget->hostdata;
2840 sas_target_priv_data->deleted = 1;
2841 sas_address = sas_device->sas_address;
2842 }
2843 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2844
2845 if (sas_target_priv_data) {
2846 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2847 "setting delete flag: handle(0x%04x), sas_addr(0x%016llx)\n",
2848 ioc->name, handle,
2849 (unsigned long long)sas_address));
2850 _scsih_ublock_io_device(ioc, sas_address);
2851 sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE;
2852 }
2853
2854 smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_tr_cb_idx);
2855 if (!smid) {
2856 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
2857 if (!delayed_tr)
2858 return;
2859 INIT_LIST_HEAD(&delayed_tr->list);
2860 delayed_tr->handle = handle;
2861 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
2862 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2863 "DELAYED:tr:handle(0x%04x), (open)\n",
2864 ioc->name, handle));
2865 return;
2866 }
2867
2868 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2869 "tr_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
2870 ioc->name, handle, smid,
2871 ioc->tm_tr_cb_idx));
2872 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
2873 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
2874 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
2875 mpi_request->DevHandle = cpu_to_le16(handle);
2876 mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
2877 mpt3sas_base_put_smid_hi_priority(ioc, smid);
2878 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_DEVICE_REMOVAL);
2879}
2880
2881/**
2882 * _scsih_tm_tr_complete -
2883 * @ioc: per adapter object
2884 * @smid: system request message index
2885 * @msix_index: MSIX table index supplied by the OS
2886 * @reply: reply message frame(lower 32bit addr)
2887 * Context: interrupt time.
2888 *
2889 * This is the target reset completion routine.
2890 * This code is part of the code to initiate the device removal
2891 * handshake protocol with controller firmware.
2892 * It will send a sas iounit control request (MPI2_SAS_OP_REMOVE_DEVICE)
2893 *
2894 * Return 1 meaning mf should be freed from _base_interrupt
2895 * 0 means the mf is freed from this function.
2896 */
2897static u8
2898_scsih_tm_tr_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
2899 u32 reply)
2900{
2901 u16 handle;
2902 Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
2903 Mpi2SCSITaskManagementReply_t *mpi_reply =
2904 mpt3sas_base_get_reply_virt_addr(ioc, reply);
2905 Mpi2SasIoUnitControlRequest_t *mpi_request;
2906 u16 smid_sas_ctrl;
2907 u32 ioc_state;
2908
2909 if (ioc->remove_host) {
2910 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2911 "%s: host has been removed\n", __func__, ioc->name));
2912 return 1;
2913 } else if (ioc->pci_error_recovery) {
2914 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2915 "%s: host in pci error recovery\n", __func__,
2916 ioc->name));
2917 return 1;
2918 }
2919 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
2920 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
2921 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2922 "%s: host is not operational\n", __func__, ioc->name));
2923 return 1;
2924 }
2925 if (unlikely(!mpi_reply)) {
2926 pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n",
2927 ioc->name, __FILE__, __LINE__, __func__);
2928 return 1;
2929 }
2930 mpi_request_tm = mpt3sas_base_get_msg_frame(ioc, smid);
2931 handle = le16_to_cpu(mpi_request_tm->DevHandle);
2932 if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
2933 dewtprintk(ioc, pr_err(MPT3SAS_FMT
2934 "spurious interrupt: handle(0x%04x:0x%04x), smid(%d)!!!\n",
2935 ioc->name, handle,
2936 le16_to_cpu(mpi_reply->DevHandle), smid));
2937 return 0;
2938 }
2939
2940 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
2941 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2942 "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
2943 "loginfo(0x%08x), completed(%d)\n", ioc->name,
2944 handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
2945 le32_to_cpu(mpi_reply->IOCLogInfo),
2946 le32_to_cpu(mpi_reply->TerminationCount)));
2947
2948 smid_sas_ctrl = mpt3sas_base_get_smid(ioc, ioc->tm_sas_control_cb_idx);
2949 if (!smid_sas_ctrl) {
2950 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
2951 ioc->name, __func__);
2952 return 1;
2953 }
2954
2955 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2956 "sc_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
2957 ioc->name, handle, smid_sas_ctrl,
2958 ioc->tm_sas_control_cb_idx));
2959 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid_sas_ctrl);
2960 memset(mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
2961 mpi_request->Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
2962 mpi_request->Operation = MPI2_SAS_OP_REMOVE_DEVICE;
2963 mpi_request->DevHandle = mpi_request_tm->DevHandle;
2964 mpt3sas_base_put_smid_default(ioc, smid_sas_ctrl);
2965
2966 return _scsih_check_for_pending_tm(ioc, smid);
2967}
2968
2969
2970/**
2971 * _scsih_sas_control_complete - completion routine
2972 * @ioc: per adapter object
2973 * @smid: system request message index
2974 * @msix_index: MSIX table index supplied by the OS
2975 * @reply: reply message frame(lower 32bit addr)
2976 * Context: interrupt time.
2977 *
2978 * This is the sas iounit control completion routine.
2979 * This code is part of the code to initiate the device removal
2980 * handshake protocol with controller firmware.
2981 *
2982 * Return 1 meaning mf should be freed from _base_interrupt
2983 * 0 means the mf is freed from this function.
2984 */
2985static u8
2986_scsih_sas_control_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid,
2987 u8 msix_index, u32 reply)
2988{
2989 Mpi2SasIoUnitControlReply_t *mpi_reply =
2990 mpt3sas_base_get_reply_virt_addr(ioc, reply);
2991
2992 if (likely(mpi_reply)) {
2993 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2994 "sc_complete:handle(0x%04x), (open) "
2995 "smid(%d), ioc_status(0x%04x), loginfo(0x%08x)\n",
2996 ioc->name, le16_to_cpu(mpi_reply->DevHandle), smid,
2997 le16_to_cpu(mpi_reply->IOCStatus),
2998 le32_to_cpu(mpi_reply->IOCLogInfo)));
2999 } else {
3000 pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n",
3001 ioc->name, __FILE__, __LINE__, __func__);
3002 }
3003 return 1;
3004}
3005
3006/**
3007 * _scsih_tm_tr_volume_send - send target reset request for volumes
3008 * @ioc: per adapter object
3009 * @handle: device handle
3010 * Context: interrupt time.
3011 *
3012 * This is designed to send muliple task management request at the same
3013 * time to the fifo. If the fifo is full, we will append the request,
3014 * and process it in a future completion.
3015 */
3016static void
3017_scsih_tm_tr_volume_send(struct MPT3SAS_ADAPTER *ioc, u16 handle)
3018{
3019 Mpi2SCSITaskManagementRequest_t *mpi_request;
3020 u16 smid;
3021 struct _tr_list *delayed_tr;
3022
3023 if (ioc->shost_recovery || ioc->remove_host ||
3024 ioc->pci_error_recovery) {
3025 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3026 "%s: host reset in progress!\n",
3027 __func__, ioc->name));
3028 return;
3029 }
3030
3031 smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_tr_volume_cb_idx);
3032 if (!smid) {
3033 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
3034 if (!delayed_tr)
3035 return;
3036 INIT_LIST_HEAD(&delayed_tr->list);
3037 delayed_tr->handle = handle;
3038 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_volume_list);
3039 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3040 "DELAYED:tr:handle(0x%04x), (open)\n",
3041 ioc->name, handle));
3042 return;
3043 }
3044
3045 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3046 "tr_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
3047 ioc->name, handle, smid,
3048 ioc->tm_tr_volume_cb_idx));
3049 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
3050 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
3051 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
3052 mpi_request->DevHandle = cpu_to_le16(handle);
3053 mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
3054 mpt3sas_base_put_smid_hi_priority(ioc, smid);
3055}
3056
3057/**
3058 * _scsih_tm_volume_tr_complete - target reset completion
3059 * @ioc: per adapter object
3060 * @smid: system request message index
3061 * @msix_index: MSIX table index supplied by the OS
3062 * @reply: reply message frame(lower 32bit addr)
3063 * Context: interrupt time.
3064 *
3065 * Return 1 meaning mf should be freed from _base_interrupt
3066 * 0 means the mf is freed from this function.
3067 */
3068static u8
3069_scsih_tm_volume_tr_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid,
3070 u8 msix_index, u32 reply)
3071{
3072 u16 handle;
3073 Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
3074 Mpi2SCSITaskManagementReply_t *mpi_reply =
3075 mpt3sas_base_get_reply_virt_addr(ioc, reply);
3076
3077 if (ioc->shost_recovery || ioc->remove_host ||
3078 ioc->pci_error_recovery) {
3079 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3080 "%s: host reset in progress!\n",
3081 __func__, ioc->name));
3082 return 1;
3083 }
3084 if (unlikely(!mpi_reply)) {
3085 pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n",
3086 ioc->name, __FILE__, __LINE__, __func__);
3087 return 1;
3088 }
3089
3090 mpi_request_tm = mpt3sas_base_get_msg_frame(ioc, smid);
3091 handle = le16_to_cpu(mpi_request_tm->DevHandle);
3092 if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
3093 dewtprintk(ioc, pr_err(MPT3SAS_FMT
3094 "spurious interrupt: handle(0x%04x:0x%04x), smid(%d)!!!\n",
3095 ioc->name, handle,
3096 le16_to_cpu(mpi_reply->DevHandle), smid));
3097 return 0;
3098 }
3099
3100 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3101 "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
3102 "loginfo(0x%08x), completed(%d)\n", ioc->name,
3103 handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
3104 le32_to_cpu(mpi_reply->IOCLogInfo),
3105 le32_to_cpu(mpi_reply->TerminationCount)));
3106
3107 return _scsih_check_for_pending_tm(ioc, smid);
3108}
3109
3110
3111/**
3112 * _scsih_check_for_pending_tm - check for pending task management
3113 * @ioc: per adapter object
3114 * @smid: system request message index
3115 *
3116 * This will check delayed target reset list, and feed the
3117 * next reqeust.
3118 *
3119 * Return 1 meaning mf should be freed from _base_interrupt
3120 * 0 means the mf is freed from this function.
3121 */
3122static u8
3123_scsih_check_for_pending_tm(struct MPT3SAS_ADAPTER *ioc, u16 smid)
3124{
3125 struct _tr_list *delayed_tr;
3126
3127 if (!list_empty(&ioc->delayed_tr_volume_list)) {
3128 delayed_tr = list_entry(ioc->delayed_tr_volume_list.next,
3129 struct _tr_list, list);
3130 mpt3sas_base_free_smid(ioc, smid);
3131 _scsih_tm_tr_volume_send(ioc, delayed_tr->handle);
3132 list_del(&delayed_tr->list);
3133 kfree(delayed_tr);
3134 return 0;
3135 }
3136
3137 if (!list_empty(&ioc->delayed_tr_list)) {
3138 delayed_tr = list_entry(ioc->delayed_tr_list.next,
3139 struct _tr_list, list);
3140 mpt3sas_base_free_smid(ioc, smid);
3141 _scsih_tm_tr_send(ioc, delayed_tr->handle);
3142 list_del(&delayed_tr->list);
3143 kfree(delayed_tr);
3144 return 0;
3145 }
3146
3147 return 1;
3148}
3149
3150/**
3151 * _scsih_check_topo_delete_events - sanity check on topo events
3152 * @ioc: per adapter object
3153 * @event_data: the event data payload
3154 *
3155 * This routine added to better handle cable breaker.
3156 *
3157 * This handles the case where driver receives multiple expander
3158 * add and delete events in a single shot. When there is a delete event
3159 * the routine will void any pending add events waiting in the event queue.
3160 *
3161 * Return nothing.
3162 */
3163static void
3164_scsih_check_topo_delete_events(struct MPT3SAS_ADAPTER *ioc,
3165 Mpi2EventDataSasTopologyChangeList_t *event_data)
3166{
3167 struct fw_event_work *fw_event;
3168 Mpi2EventDataSasTopologyChangeList_t *local_event_data;
3169 u16 expander_handle;
3170 struct _sas_node *sas_expander;
3171 unsigned long flags;
3172 int i, reason_code;
3173 u16 handle;
3174
3175 for (i = 0 ; i < event_data->NumEntries; i++) {
3176 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
3177 if (!handle)
3178 continue;
3179 reason_code = event_data->PHY[i].PhyStatus &
3180 MPI2_EVENT_SAS_TOPO_RC_MASK;
3181 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING)
3182 _scsih_tm_tr_send(ioc, handle);
3183 }
3184
3185 expander_handle = le16_to_cpu(event_data->ExpanderDevHandle);
3186 if (expander_handle < ioc->sas_hba.num_phys) {
3187 _scsih_block_io_to_children_attached_directly(ioc, event_data);
3188 return;
3189 }
3190 if (event_data->ExpStatus ==
3191 MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING) {
3192 /* put expander attached devices into blocking state */
3193 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3194 sas_expander = mpt3sas_scsih_expander_find_by_handle(ioc,
3195 expander_handle);
3196 _scsih_block_io_to_children_attached_to_ex(ioc, sas_expander);
3197 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3198 do {
3199 handle = find_first_bit(ioc->blocking_handles,
3200 ioc->facts.MaxDevHandle);
3201 if (handle < ioc->facts.MaxDevHandle)
3202 _scsih_block_io_device(ioc, handle);
3203 } while (test_and_clear_bit(handle, ioc->blocking_handles));
3204 } else if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_RESPONDING)
3205 _scsih_block_io_to_children_attached_directly(ioc, event_data);
3206
3207 if (event_data->ExpStatus != MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
3208 return;
3209
3210 /* mark ignore flag for pending events */
3211 spin_lock_irqsave(&ioc->fw_event_lock, flags);
3212 list_for_each_entry(fw_event, &ioc->fw_event_list, list) {
3213 if (fw_event->event != MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
3214 fw_event->ignore)
3215 continue;
3216 local_event_data = fw_event->event_data;
3217 if (local_event_data->ExpStatus ==
3218 MPI2_EVENT_SAS_TOPO_ES_ADDED ||
3219 local_event_data->ExpStatus ==
3220 MPI2_EVENT_SAS_TOPO_ES_RESPONDING) {
3221 if (le16_to_cpu(local_event_data->ExpanderDevHandle) ==
3222 expander_handle) {
3223 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3224 "setting ignoring flag\n", ioc->name));
3225 fw_event->ignore = 1;
3226 }
3227 }
3228 }
3229 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
3230}
3231
3232/**
3233 * _scsih_set_volume_delete_flag - setting volume delete flag
3234 * @ioc: per adapter object
3235 * @handle: device handle
3236 *
3237 * This returns nothing.
3238 */
3239static void
3240_scsih_set_volume_delete_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle)
3241{
3242 struct _raid_device *raid_device;
3243 struct MPT3SAS_TARGET *sas_target_priv_data;
3244 unsigned long flags;
3245
3246 spin_lock_irqsave(&ioc->raid_device_lock, flags);
3247 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
3248 if (raid_device && raid_device->starget &&
3249 raid_device->starget->hostdata) {
3250 sas_target_priv_data =
3251 raid_device->starget->hostdata;
3252 sas_target_priv_data->deleted = 1;
3253 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3254 "setting delete flag: handle(0x%04x), "
3255 "wwid(0x%016llx)\n", ioc->name, handle,
3256 (unsigned long long) raid_device->wwid));
3257 }
3258 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
3259}
3260
3261/**
3262 * _scsih_set_volume_handle_for_tr - set handle for target reset to volume
3263 * @handle: input handle
3264 * @a: handle for volume a
3265 * @b: handle for volume b
3266 *
3267 * IR firmware only supports two raid volumes. The purpose of this
3268 * routine is to set the volume handle in either a or b. When the given
3269 * input handle is non-zero, or when a and b have not been set before.
3270 */
3271static void
3272_scsih_set_volume_handle_for_tr(u16 handle, u16 *a, u16 *b)
3273{
3274 if (!handle || handle == *a || handle == *b)
3275 return;
3276 if (!*a)
3277 *a = handle;
3278 else if (!*b)
3279 *b = handle;
3280}
3281
3282/**
3283 * _scsih_check_ir_config_unhide_events - check for UNHIDE events
3284 * @ioc: per adapter object
3285 * @event_data: the event data payload
3286 * Context: interrupt time.
3287 *
3288 * This routine will send target reset to volume, followed by target
3289 * resets to the PDs. This is called when a PD has been removed, or
3290 * volume has been deleted or removed. When the target reset is sent
3291 * to volume, the PD target resets need to be queued to start upon
3292 * completion of the volume target reset.
3293 *
3294 * Return nothing.
3295 */
3296static void
3297_scsih_check_ir_config_unhide_events(struct MPT3SAS_ADAPTER *ioc,
3298 Mpi2EventDataIrConfigChangeList_t *event_data)
3299{
3300 Mpi2EventIrConfigElement_t *element;
3301 int i;
3302 u16 handle, volume_handle, a, b;
3303 struct _tr_list *delayed_tr;
3304
3305 a = 0;
3306 b = 0;
3307
3308 /* Volume Resets for Deleted or Removed */
3309 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3310 for (i = 0; i < event_data->NumElements; i++, element++) {
3311 if (le32_to_cpu(event_data->Flags) &
3312 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
3313 continue;
3314 if (element->ReasonCode ==
3315 MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED ||
3316 element->ReasonCode ==
3317 MPI2_EVENT_IR_CHANGE_RC_REMOVED) {
3318 volume_handle = le16_to_cpu(element->VolDevHandle);
3319 _scsih_set_volume_delete_flag(ioc, volume_handle);
3320 _scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
3321 }
3322 }
3323
3324 /* Volume Resets for UNHIDE events */
3325 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3326 for (i = 0; i < event_data->NumElements; i++, element++) {
3327 if (le32_to_cpu(event_data->Flags) &
3328 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
3329 continue;
3330 if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_UNHIDE) {
3331 volume_handle = le16_to_cpu(element->VolDevHandle);
3332 _scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
3333 }
3334 }
3335
3336 if (a)
3337 _scsih_tm_tr_volume_send(ioc, a);
3338 if (b)
3339 _scsih_tm_tr_volume_send(ioc, b);
3340
3341 /* PD target resets */
3342 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3343 for (i = 0; i < event_data->NumElements; i++, element++) {
3344 if (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_UNHIDE)
3345 continue;
3346 handle = le16_to_cpu(element->PhysDiskDevHandle);
3347 volume_handle = le16_to_cpu(element->VolDevHandle);
3348 clear_bit(handle, ioc->pd_handles);
3349 if (!volume_handle)
3350 _scsih_tm_tr_send(ioc, handle);
3351 else if (volume_handle == a || volume_handle == b) {
3352 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
3353 BUG_ON(!delayed_tr);
3354 INIT_LIST_HEAD(&delayed_tr->list);
3355 delayed_tr->handle = handle;
3356 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
3357 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3358 "DELAYED:tr:handle(0x%04x), (open)\n", ioc->name,
3359 handle));
3360 } else
3361 _scsih_tm_tr_send(ioc, handle);
3362 }
3363}
3364
3365
3366/**
3367 * _scsih_check_volume_delete_events - set delete flag for volumes
3368 * @ioc: per adapter object
3369 * @event_data: the event data payload
3370 * Context: interrupt time.
3371 *
3372 * This will handle the case when the cable connected to entire volume is
3373 * pulled. We will take care of setting the deleted flag so normal IO will
3374 * not be sent.
3375 *
3376 * Return nothing.
3377 */
3378static void
3379_scsih_check_volume_delete_events(struct MPT3SAS_ADAPTER *ioc,
3380 Mpi2EventDataIrVolume_t *event_data)
3381{
3382 u32 state;
3383
3384 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
3385 return;
3386 state = le32_to_cpu(event_data->NewValue);
3387 if (state == MPI2_RAID_VOL_STATE_MISSING || state ==
3388 MPI2_RAID_VOL_STATE_FAILED)
3389 _scsih_set_volume_delete_flag(ioc,
3390 le16_to_cpu(event_data->VolDevHandle));
3391}
3392
3393/**
3394 * _scsih_flush_running_cmds - completing outstanding commands.
3395 * @ioc: per adapter object
3396 *
3397 * The flushing out of all pending scmd commands following host reset,
3398 * where all IO is dropped to the floor.
3399 *
3400 * Return nothing.
3401 */
3402static void
3403_scsih_flush_running_cmds(struct MPT3SAS_ADAPTER *ioc)
3404{
3405 struct scsi_cmnd *scmd;
3406 u16 smid;
3407 u16 count = 0;
3408
3409 for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
3410 scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
3411 if (!scmd)
3412 continue;
3413 count++;
3414 mpt3sas_base_free_smid(ioc, smid);
3415 scsi_dma_unmap(scmd);
3416 if (ioc->pci_error_recovery)
3417 scmd->result = DID_NO_CONNECT << 16;
3418 else
3419 scmd->result = DID_RESET << 16;
3420 scmd->scsi_done(scmd);
3421 }
3422 dtmprintk(ioc, pr_info(MPT3SAS_FMT "completing %d cmds\n",
3423 ioc->name, count));
3424}
3425
3426/**
3427 * _scsih_setup_eedp - setup MPI request for EEDP transfer
3428 * @ioc: per adapter object
3429 * @scmd: pointer to scsi command object
3430 * @mpi_request: pointer to the SCSI_IO reqest message frame
3431 *
3432 * Supporting protection 1 and 3.
3433 *
3434 * Returns nothing
3435 */
3436static void
3437_scsih_setup_eedp(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
3438 Mpi2SCSIIORequest_t *mpi_request)
3439{
3440 u16 eedp_flags;
3441 unsigned char prot_op = scsi_get_prot_op(scmd);
3442 unsigned char prot_type = scsi_get_prot_type(scmd);
3443 Mpi25SCSIIORequest_t *mpi_request_3v =
3444 (Mpi25SCSIIORequest_t *)mpi_request;
3445
3446 if (prot_type == SCSI_PROT_DIF_TYPE0 || prot_op == SCSI_PROT_NORMAL)
3447 return;
3448
3449 if (prot_op == SCSI_PROT_READ_STRIP)
3450 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP;
3451 else if (prot_op == SCSI_PROT_WRITE_INSERT)
3452 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_INSERT_OP;
3453 else
3454 return;
3455
3456 switch (prot_type) {
3457 case SCSI_PROT_DIF_TYPE1:
3458 case SCSI_PROT_DIF_TYPE2:
3459
3460 /*
3461 * enable ref/guard checking
3462 * auto increment ref tag
3463 */
3464 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
3465 MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
3466 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
3467 mpi_request->CDB.EEDP32.PrimaryReferenceTag =
3468 cpu_to_be32(scsi_get_lba(scmd));
3469 break;
3470
3471 case SCSI_PROT_DIF_TYPE3:
3472
3473 /*
3474 * enable guard checking
3475 */
3476 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
3477
3478 break;
3479 }
3480
3481 mpi_request_3v->EEDPBlockSize =
3482 cpu_to_le16(scmd->device->sector_size);
3483 mpi_request->EEDPFlags = cpu_to_le16(eedp_flags);
3484}
3485
3486/**
3487 * _scsih_eedp_error_handling - return sense code for EEDP errors
3488 * @scmd: pointer to scsi command object
3489 * @ioc_status: ioc status
3490 *
3491 * Returns nothing
3492 */
3493static void
3494_scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status)
3495{
3496 u8 ascq;
3497
3498 switch (ioc_status) {
3499 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
3500 ascq = 0x01;
3501 break;
3502 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
3503 ascq = 0x02;
3504 break;
3505 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
3506 ascq = 0x03;
3507 break;
3508 default:
3509 ascq = 0x00;
3510 break;
3511 }
3512 scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 0x10,
3513 ascq);
3514 scmd->result = DRIVER_SENSE << 24 | (DID_ABORT << 16) |
3515 SAM_STAT_CHECK_CONDITION;
3516}
3517
3518
3519/**
d8bfbd8d 3520 * _scsih_qcmd - main scsi request entry point
f92363d1
SR		 3521 * @scmd: pointer to scsi command object
3522 * @done: function pointer to be invoked on completion
3523 *
3524 * The callback index is set inside `ioc->scsi_io_cb_idx`.
3525 *
3526 * Returns 0 on success. If there's a failure, return either:
3527 * SCSI_MLQUEUE_DEVICE_BUSY if the device queue is full, or
3528 * SCSI_MLQUEUE_HOST_BUSY if the entire host queue is full
3529 */
3530static int
d8bfbd8d 3531_scsih_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
f92363d1 3532{
d8bfbd8d 3533 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
f92363d1
SR		 3534 struct MPT3SAS_DEVICE *sas_device_priv_data;
3535 struct MPT3SAS_TARGET *sas_target_priv_data;
3536 Mpi2SCSIIORequest_t *mpi_request;
3537 u32 mpi_control;
3538 u16 smid;
3539 u16 handle;
3540
3541#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
3542 if (ioc->logging_level & MPT_DEBUG_SCSI)
3543 scsi_print_command(scmd);
3544#endif
3545
f92363d1
SR		 3546 sas_device_priv_data = scmd->device->hostdata;
3547 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
3548 scmd->result = DID_NO_CONNECT << 16;
3549 scmd->scsi_done(scmd);
3550 return 0;
3551 }
3552
3553 if (ioc->pci_error_recovery || ioc->remove_host) {
3554 scmd->result = DID_NO_CONNECT << 16;
3555 scmd->scsi_done(scmd);
3556 return 0;
3557 }
3558
3559 sas_target_priv_data = sas_device_priv_data->sas_target;
3560
3561 /* invalid device handle */
3562 handle = sas_target_priv_data->handle;
3563 if (handle == MPT3SAS_INVALID_DEVICE_HANDLE) {
3564 scmd->result = DID_NO_CONNECT << 16;
3565 scmd->scsi_done(scmd);
3566 return 0;
3567 }
3568
3569
3570 /* host recovery or link resets sent via IOCTLs */
3571 if (ioc->shost_recovery || ioc->ioc_link_reset_in_progress)
3572 return SCSI_MLQUEUE_HOST_BUSY;
3573
3574 /* device has been deleted */
3575 else if (sas_target_priv_data->deleted) {
3576 scmd->result = DID_NO_CONNECT << 16;
3577 scmd->scsi_done(scmd);
3578 return 0;
3579 /* device busy with task managment */
3580 } else if (sas_target_priv_data->tm_busy ||
3581 sas_device_priv_data->block)
3582 return SCSI_MLQUEUE_DEVICE_BUSY;
3583
3584 if (scmd->sc_data_direction == DMA_FROM_DEVICE)
3585 mpi_control = MPI2_SCSIIO_CONTROL_READ;
3586 else if (scmd->sc_data_direction == DMA_TO_DEVICE)
3587 mpi_control = MPI2_SCSIIO_CONTROL_WRITE;
3588 else
3589 mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER;
3590
3591 /* set tags */
3592 if (!(sas_device_priv_data->flags & MPT_DEVICE_FLAGS_INIT)) {
3593 if (scmd->device->tagged_supported) {
3594 if (scmd->device->ordered_tags)
3595 mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ;
3596 else
3597 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
3598 } else
3599 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
3600 } else
3601 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
3602
3603 if ((sas_device_priv_data->flags & MPT_DEVICE_TLR_ON) &&
3604 scmd->cmd_len != 32)
3605 mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
3606
3607 smid = mpt3sas_base_get_smid_scsiio(ioc, ioc->scsi_io_cb_idx, scmd);
3608 if (!smid) {
3609 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
3610 ioc->name, __func__);
3611 goto out;
3612 }
3613 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
3614 memset(mpi_request, 0, sizeof(Mpi2SCSIIORequest_t));
3615 _scsih_setup_eedp(ioc, scmd, mpi_request);
3616
3617 if (scmd->cmd_len == 32)
3618 mpi_control |= 4 << MPI2_SCSIIO_CONTROL_ADDCDBLEN_SHIFT;
3619 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
3620 if (sas_device_priv_data->sas_target->flags &
3621 MPT_TARGET_FLAGS_RAID_COMPONENT)
3622 mpi_request->Function = MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
3623 else
3624 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
3625 mpi_request->DevHandle = cpu_to_le16(handle);
3626 mpi_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
3627 mpi_request->Control = cpu_to_le32(mpi_control);
3628 mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len);
3629 mpi_request->MsgFlags = MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR;
3630 mpi_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
3631 mpi_request->SenseBufferLowAddress =
3632 mpt3sas_base_get_sense_buffer_dma(ioc, smid);
3633 mpi_request->SGLOffset0 = offsetof(Mpi2SCSIIORequest_t, SGL) / 4;
3634 int_to_scsilun(sas_device_priv_data->lun, (struct scsi_lun *)
3635 mpi_request->LUN);
3636 memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
3637
3638 if (mpi_request->DataLength) {
3639 if (ioc->build_sg_scmd(ioc, scmd, smid)) {
3640 mpt3sas_base_free_smid(ioc, smid);
3641 goto out;
3642 }
3643 } else
3644 ioc->build_zero_len_sge(ioc, &mpi_request->SGL);
3645
3646 if (likely(mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)) {
3647 if (sas_target_priv_data->flags & MPT_TARGET_FASTPATH_IO) {
3648 mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len |
3649 MPI25_SCSIIO_IOFLAGS_FAST_PATH);
3650 mpt3sas_base_put_smid_fast_path(ioc, smid, handle);
3651 } else
3652 mpt3sas_base_put_smid_scsi_io(ioc, smid, handle);
3653 } else
3654 mpt3sas_base_put_smid_default(ioc, smid);
3655 return 0;
3656
3657 out:
3658 return SCSI_MLQUEUE_HOST_BUSY;
3659}
f92363d1
SR		 3660
3661/**
3662 * _scsih_normalize_sense - normalize descriptor and fixed format sense data
3663 * @sense_buffer: sense data returned by target
3664 * @data: normalized skey/asc/ascq
3665 *
3666 * Return nothing.
3667 */
3668static void
3669_scsih_normalize_sense(char *sense_buffer, struct sense_info *data)
3670{
3671 if ((sense_buffer[0] & 0x7F) >= 0x72) {
3672 /* descriptor format */
3673 data->skey = sense_buffer[1] & 0x0F;
3674 data->asc = sense_buffer[2];
3675 data->ascq = sense_buffer[3];
3676 } else {
3677 /* fixed format */
3678 data->skey = sense_buffer[2] & 0x0F;
3679 data->asc = sense_buffer[12];
3680 data->ascq = sense_buffer[13];
3681 }
3682}
3683
3684#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
3685/**
3686 * _scsih_scsi_ioc_info - translated non-succesfull SCSI_IO request
3687 * @ioc: per adapter object
3688 * @scmd: pointer to scsi command object
3689 * @mpi_reply: reply mf payload returned from firmware
3690 *
3691 * scsi_status - SCSI Status code returned from target device
3692 * scsi_state - state info associated with SCSI_IO determined by ioc
3693 * ioc_status - ioc supplied status info
3694 *
3695 * Return nothing.
3696 */
3697static void
3698_scsih_scsi_ioc_info(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
3699 Mpi2SCSIIOReply_t *mpi_reply, u16 smid)
3700{
3701 u32 response_info;
3702 u8 *response_bytes;
3703 u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
3704 MPI2_IOCSTATUS_MASK;
3705 u8 scsi_state = mpi_reply->SCSIState;
3706 u8 scsi_status = mpi_reply->SCSIStatus;
3707 char *desc_ioc_state = NULL;
3708 char *desc_scsi_status = NULL;
3709 char *desc_scsi_state = ioc->tmp_string;
3710 u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
3711 struct _sas_device *sas_device = NULL;
3712 unsigned long flags;
3713 struct scsi_target *starget = scmd->device->sdev_target;
3714 struct MPT3SAS_TARGET *priv_target = starget->hostdata;
3715 char *device_str = NULL;
3716
3717 if (!priv_target)
3718 return;
3719 device_str = "volume";
3720
3721 if (log_info == 0x31170000)
3722 return;
3723
3724 switch (ioc_status) {
3725 case MPI2_IOCSTATUS_SUCCESS:
3726 desc_ioc_state = "success";
3727 break;
3728 case MPI2_IOCSTATUS_INVALID_FUNCTION:
3729 desc_ioc_state = "invalid function";
3730 break;
3731 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
3732 desc_ioc_state = "scsi recovered error";
3733 break;
3734 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
3735 desc_ioc_state = "scsi invalid dev handle";
3736 break;
3737 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
3738 desc_ioc_state = "scsi device not there";
3739 break;
3740 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
3741 desc_ioc_state = "scsi data overrun";
3742 break;
3743 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
3744 desc_ioc_state = "scsi data underrun";
3745 break;
3746 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
3747 desc_ioc_state = "scsi io data error";
3748 break;
3749 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
3750 desc_ioc_state = "scsi protocol error";
3751 break;
3752 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
3753 desc_ioc_state = "scsi task terminated";
3754 break;
3755 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
3756 desc_ioc_state = "scsi residual mismatch";
3757 break;
3758 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
3759 desc_ioc_state = "scsi task mgmt failed";
3760 break;
3761 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
3762 desc_ioc_state = "scsi ioc terminated";
3763 break;
3764 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
3765 desc_ioc_state = "scsi ext terminated";
3766 break;
3767 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
3768 desc_ioc_state = "eedp guard error";
3769 break;
3770 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
3771 desc_ioc_state = "eedp ref tag error";
3772 break;
3773 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
3774 desc_ioc_state = "eedp app tag error";
3775 break;
3776 default:
3777 desc_ioc_state = "unknown";
3778 break;
3779 }
3780
3781 switch (scsi_status) {
3782 case MPI2_SCSI_STATUS_GOOD:
3783 desc_scsi_status = "good";
3784 break;
3785 case MPI2_SCSI_STATUS_CHECK_CONDITION:
3786 desc_scsi_status = "check condition";
3787 break;
3788 case MPI2_SCSI_STATUS_CONDITION_MET:
3789 desc_scsi_status = "condition met";
3790 break;
3791 case MPI2_SCSI_STATUS_BUSY:
3792 desc_scsi_status = "busy";
3793 break;
3794 case MPI2_SCSI_STATUS_INTERMEDIATE:
3795 desc_scsi_status = "intermediate";
3796 break;
3797 case MPI2_SCSI_STATUS_INTERMEDIATE_CONDMET:
3798 desc_scsi_status = "intermediate condmet";
3799 break;
3800 case MPI2_SCSI_STATUS_RESERVATION_CONFLICT:
3801 desc_scsi_status = "reservation conflict";
3802 break;
3803 case MPI2_SCSI_STATUS_COMMAND_TERMINATED:
3804 desc_scsi_status = "command terminated";
3805 break;
3806 case MPI2_SCSI_STATUS_TASK_SET_FULL:
3807 desc_scsi_status = "task set full";
3808 break;
3809 case MPI2_SCSI_STATUS_ACA_ACTIVE:
3810 desc_scsi_status = "aca active";
3811 break;
3812 case MPI2_SCSI_STATUS_TASK_ABORTED:
3813 desc_scsi_status = "task aborted";
3814 break;
3815 default:
3816 desc_scsi_status = "unknown";
3817 break;
3818 }
3819
3820 desc_scsi_state[0] = '\0';
3821 if (!scsi_state)
3822 desc_scsi_state = " ";
3823 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
3824 strcat(desc_scsi_state, "response info ");
3825 if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
3826 strcat(desc_scsi_state, "state terminated ");
3827 if (scsi_state & MPI2_SCSI_STATE_NO_SCSI_STATUS)
3828 strcat(desc_scsi_state, "no status ");
3829 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_FAILED)
3830 strcat(desc_scsi_state, "autosense failed ");
3831 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID)
3832 strcat(desc_scsi_state, "autosense valid ");
3833
3834 scsi_print_command(scmd);
3835
3836 if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
3837 pr_warn(MPT3SAS_FMT "\t%s wwid(0x%016llx)\n", ioc->name,
3838 device_str, (unsigned long long)priv_target->sas_address);
3839 } else {
3840 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3841 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
3842 priv_target->sas_address);
3843 if (sas_device) {
3844 pr_warn(MPT3SAS_FMT
3845 "\tsas_address(0x%016llx), phy(%d)\n",
3846 ioc->name, (unsigned long long)
3847 sas_device->sas_address, sas_device->phy);
3848 pr_warn(MPT3SAS_FMT
3849 "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
3850 ioc->name, (unsigned long long)
3851 sas_device->enclosure_logical_id, sas_device->slot);
3852 }
3853 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3854 }
3855
3856 pr_warn(MPT3SAS_FMT
3857 "\thandle(0x%04x), ioc_status(%s)(0x%04x), smid(%d)\n",
3858 ioc->name, le16_to_cpu(mpi_reply->DevHandle),
3859 desc_ioc_state, ioc_status, smid);
3860 pr_warn(MPT3SAS_FMT
3861 "\trequest_len(%d), underflow(%d), resid(%d)\n",
3862 ioc->name, scsi_bufflen(scmd), scmd->underflow,
3863 scsi_get_resid(scmd));
3864 pr_warn(MPT3SAS_FMT
3865 "\ttag(%d), transfer_count(%d), sc->result(0x%08x)\n",
3866 ioc->name, le16_to_cpu(mpi_reply->TaskTag),
3867 le32_to_cpu(mpi_reply->TransferCount), scmd->result);
3868 pr_warn(MPT3SAS_FMT
3869 "\tscsi_status(%s)(0x%02x), scsi_state(%s)(0x%02x)\n",
3870 ioc->name, desc_scsi_status,
3871 scsi_status, desc_scsi_state, scsi_state);
3872
3873 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
3874 struct sense_info data;
3875 _scsih_normalize_sense(scmd->sense_buffer, &data);
3876 pr_warn(MPT3SAS_FMT
3877 "\t[sense_key,asc,ascq]: [0x%02x,0x%02x,0x%02x], count(%d)\n",
3878 ioc->name, data.skey,
3879 data.asc, data.ascq, le32_to_cpu(mpi_reply->SenseCount));
3880 }
3881
3882 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
3883 response_info = le32_to_cpu(mpi_reply->ResponseInfo);
3884 response_bytes = (u8 *)&response_info;
3885 _scsih_response_code(ioc, response_bytes[0]);
3886 }
3887}
3888#endif
3889
3890/**
3891 * _scsih_turn_on_fault_led - illuminate Fault LED
3892 * @ioc: per adapter object
3893 * @handle: device handle
3894 * Context: process
3895 *
3896 * Return nothing.
3897 */
3898static void
3899_scsih_turn_on_fault_led(struct MPT3SAS_ADAPTER *ioc, u16 handle)
3900{
3901 Mpi2SepReply_t mpi_reply;
3902 Mpi2SepRequest_t mpi_request;
3903
3904 memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t));
3905 mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
3906 mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS;
3907 mpi_request.SlotStatus =
3908 cpu_to_le32(MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
3909 mpi_request.DevHandle = cpu_to_le16(handle);
3910 mpi_request.Flags = MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS;
3911 if ((mpt3sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
3912 &mpi_request)) != 0) {
3913 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", ioc->name,
3914 __FILE__, __LINE__, __func__);
3915 return;
3916 }
3917
3918 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) {
3919 dewtprintk(ioc, pr_info(MPT3SAS_FMT
3920 "enclosure_processor: ioc_status (0x%04x), loginfo(0x%08x)\n",
3921 ioc->name, le16_to_cpu(mpi_reply.IOCStatus),
3922 le32_to_cpu(mpi_reply.IOCLogInfo)));
3923 return;
3924 }
3925}
3926
3927/**
3928 * _scsih_send_event_to_turn_on_fault_led - fire delayed event
3929 * @ioc: per adapter object
3930 * @handle: device handle
3931 * Context: interrupt.
3932 *
3933 * Return nothing.
3934 */
3935static void
3936_scsih_send_event_to_turn_on_fault_led(struct MPT3SAS_ADAPTER *ioc, u16 handle)
3937{
3938 struct fw_event_work *fw_event;
3939
3940 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
3941 if (!fw_event)
3942 return;
3943 fw_event->event = MPT3SAS_TURN_ON_FAULT_LED;
3944 fw_event->device_handle = handle;
3945 fw_event->ioc = ioc;
3946 _scsih_fw_event_add(ioc, fw_event);
3947}
3948
3949/**
3950 * _scsih_smart_predicted_fault - process smart errors
3951 * @ioc: per adapter object
3952 * @handle: device handle
3953 * Context: interrupt.
3954 *
3955 * Return nothing.
3956 */
3957static void
3958_scsih_smart_predicted_fault(struct MPT3SAS_ADAPTER *ioc, u16 handle)
3959{
3960 struct scsi_target *starget;
3961 struct MPT3SAS_TARGET *sas_target_priv_data;
3962 Mpi2EventNotificationReply_t *event_reply;
3963 Mpi2EventDataSasDeviceStatusChange_t *event_data;
3964 struct _sas_device *sas_device;
3965 ssize_t sz;
3966 unsigned long flags;
3967
3968 /* only handle non-raid devices */
3969 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3970 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
3971 if (!sas_device) {
3972 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3973 return;
3974 }
3975 starget = sas_device->starget;
3976 sas_target_priv_data = starget->hostdata;
3977
3978 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) ||
3979 ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) {
3980 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3981 return;
3982 }
3983 starget_printk(KERN_WARNING, starget, "predicted fault\n");
3984 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3985
3986 if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM)
3987 _scsih_send_event_to_turn_on_fault_led(ioc, handle);
3988
3989 /* insert into event log */
3990 sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
3991 sizeof(Mpi2EventDataSasDeviceStatusChange_t);
3992 event_reply = kzalloc(sz, GFP_KERNEL);
3993 if (!event_reply) {
3994 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
3995 ioc->name, __FILE__, __LINE__, __func__);
3996 return;
3997 }
3998
3999 event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
4000 event_reply->Event =
4001 cpu_to_le16(MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
4002 event_reply->MsgLength = sz/4;
4003 event_reply->EventDataLength =
4004 cpu_to_le16(sizeof(Mpi2EventDataSasDeviceStatusChange_t)/4);
4005 event_data = (Mpi2EventDataSasDeviceStatusChange_t *)
4006 event_reply->EventData;
4007 event_data->ReasonCode = MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA;
4008 event_data->ASC = 0x5D;
4009 event_data->DevHandle = cpu_to_le16(handle);
4010 event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address);
4011 mpt3sas_ctl_add_to_event_log(ioc, event_reply);
4012 kfree(event_reply);
4013}
4014
4015/**
4016 * _scsih_io_done - scsi request callback
4017 * @ioc: per adapter object
4018 * @smid: system request message index
4019 * @msix_index: MSIX table index supplied by the OS
4020 * @reply: reply message frame(lower 32bit addr)
4021 *
4022 * Callback handler when using _scsih_qcmd.
4023 *
4024 * Return 1 meaning mf should be freed from _base_interrupt
4025 * 0 means the mf is freed from this function.
4026 */
4027static u8
4028_scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
4029{
4030 Mpi2SCSIIORequest_t *mpi_request;
4031 Mpi2SCSIIOReply_t *mpi_reply;
4032 struct scsi_cmnd *scmd;
4033 u16 ioc_status;
4034 u32 xfer_cnt;
4035 u8 scsi_state;
4036 u8 scsi_status;
4037 u32 log_info;
4038 struct MPT3SAS_DEVICE *sas_device_priv_data;
4039 u32 response_code = 0;
4040
4041 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
4042 scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
4043 if (scmd == NULL)
4044 return 1;
4045
4046 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
4047
4048 if (mpi_reply == NULL) {
4049 scmd->result = DID_OK << 16;
4050 goto out;
4051 }
4052
4053 sas_device_priv_data = scmd->device->hostdata;
4054 if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
4055 sas_device_priv_data->sas_target->deleted) {
4056 scmd->result = DID_NO_CONNECT << 16;
4057 goto out;
4058 }
4059 ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
4060
4061 /* turning off TLR */
4062 scsi_state = mpi_reply->SCSIState;
4063 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
4064 response_code =
4065 le32_to_cpu(mpi_reply->ResponseInfo) & 0xFF;
4066 if (!sas_device_priv_data->tlr_snoop_check) {
4067 sas_device_priv_data->tlr_snoop_check++;
4068 if ((sas_device_priv_data->flags & MPT_DEVICE_TLR_ON) &&
4069 response_code == MPI2_SCSITASKMGMT_RSP_INVALID_FRAME)
4070 sas_device_priv_data->flags &=
4071 ~MPT_DEVICE_TLR_ON;
4072 }
4073
4074 xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
4075 scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
4076 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
4077 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
4078 else
4079 log_info = 0;
4080 ioc_status &= MPI2_IOCSTATUS_MASK;
4081 scsi_status = mpi_reply->SCSIStatus;
4082
4083 if (ioc_status == MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
4084 (scsi_status == MPI2_SCSI_STATUS_BUSY ||
4085 scsi_status == MPI2_SCSI_STATUS_RESERVATION_CONFLICT ||
4086 scsi_status == MPI2_SCSI_STATUS_TASK_SET_FULL)) {
4087 ioc_status = MPI2_IOCSTATUS_SUCCESS;
4088 }
4089
4090 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
4091 struct sense_info data;
4092 const void *sense_data = mpt3sas_base_get_sense_buffer(ioc,
4093 smid);
4094 u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
4095 le32_to_cpu(mpi_reply->SenseCount));
4096 memcpy(scmd->sense_buffer, sense_data, sz);
4097 _scsih_normalize_sense(scmd->sense_buffer, &data);
4098 /* failure prediction threshold exceeded */
4099 if (data.asc == 0x5D)
4100 _scsih_smart_predicted_fault(ioc,
4101 le16_to_cpu(mpi_reply->DevHandle));
4102 mpt3sas_trigger_scsi(ioc, data.skey, data.asc, data.ascq);
4103 }
4104
4105 switch (ioc_status) {
4106 case MPI2_IOCSTATUS_BUSY:
4107 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
4108 scmd->result = SAM_STAT_BUSY;
4109 break;
4110
4111 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
4112 scmd->result = DID_NO_CONNECT << 16;
4113 break;
4114
4115 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
4116 if (sas_device_priv_data->block) {
4117 scmd->result = DID_TRANSPORT_DISRUPTED << 16;
4118 goto out;
4119 }
4120 if (log_info == 0x31110630) {
4121 if (scmd->retries > 2) {
4122 scmd->result = DID_NO_CONNECT << 16;
4123 scsi_device_set_state(scmd->device,
4124 SDEV_OFFLINE);
4125 } else {
4126 scmd->result = DID_SOFT_ERROR << 16;
4127 scmd->device->expecting_cc_ua = 1;
4128 }
4129 break;
4130 }
4131 scmd->result = DID_SOFT_ERROR << 16;
4132 break;
4133 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
4134 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
4135 scmd->result = DID_RESET << 16;
4136 break;
4137
4138 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
4139 if ((xfer_cnt == 0) || (scmd->underflow > xfer_cnt))
4140 scmd->result = DID_SOFT_ERROR << 16;
4141 else
4142 scmd->result = (DID_OK << 16) | scsi_status;
4143 break;
4144
4145 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
4146 scmd->result = (DID_OK << 16) | scsi_status;
4147
4148 if ((scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID))
4149 break;
4150
4151 if (xfer_cnt < scmd->underflow) {
4152 if (scsi_status == SAM_STAT_BUSY)
4153 scmd->result = SAM_STAT_BUSY;
4154 else
4155 scmd->result = DID_SOFT_ERROR << 16;
4156 } else if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
4157 MPI2_SCSI_STATE_NO_SCSI_STATUS))
4158 scmd->result = DID_SOFT_ERROR << 16;
4159 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
4160 scmd->result = DID_RESET << 16;
4161 else if (!xfer_cnt && scmd->cmnd[0] == REPORT_LUNS) {
4162 mpi_reply->SCSIState = MPI2_SCSI_STATE_AUTOSENSE_VALID;
4163 mpi_reply->SCSIStatus = SAM_STAT_CHECK_CONDITION;
4164 scmd->result = (DRIVER_SENSE << 24) |
4165 SAM_STAT_CHECK_CONDITION;
4166 scmd->sense_buffer[0] = 0x70;
4167 scmd->sense_buffer[2] = ILLEGAL_REQUEST;
4168 scmd->sense_buffer[12] = 0x20;
4169 scmd->sense_buffer[13] = 0;
4170 }
4171 break;
4172
4173 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
4174 scsi_set_resid(scmd, 0);
4175 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
4176 case MPI2_IOCSTATUS_SUCCESS:
4177 scmd->result = (DID_OK << 16) | scsi_status;
4178 if (response_code ==
4179 MPI2_SCSITASKMGMT_RSP_INVALID_FRAME ||
4180 (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
4181 MPI2_SCSI_STATE_NO_SCSI_STATUS)))
4182 scmd->result = DID_SOFT_ERROR << 16;
4183 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
4184 scmd->result = DID_RESET << 16;
4185 break;
4186
4187 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
4188 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
4189 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
4190 _scsih_eedp_error_handling(scmd, ioc_status);
4191 break;
4192
4193 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
4194 case MPI2_IOCSTATUS_INVALID_FUNCTION:
4195 case MPI2_IOCSTATUS_INVALID_SGL:
4196 case MPI2_IOCSTATUS_INTERNAL_ERROR:
4197 case MPI2_IOCSTATUS_INVALID_FIELD:
4198 case MPI2_IOCSTATUS_INVALID_STATE:
4199 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
4200 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
4201 default:
4202 scmd->result = DID_SOFT_ERROR << 16;
4203 break;
4204
4205 }
4206
4207#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
4208 if (scmd->result && (ioc->logging_level & MPT_DEBUG_REPLY))
4209 _scsih_scsi_ioc_info(ioc , scmd, mpi_reply, smid);
4210#endif
4211
4212 out:
4213
4214 scsi_dma_unmap(scmd);
4215
4216 scmd->scsi_done(scmd);
4217 return 1;
4218}
4219
4220/**
4221 * _scsih_sas_host_refresh - refreshing sas host object contents
4222 * @ioc: per adapter object
4223 * Context: user
4224 *
4225 * During port enable, fw will send topology events for every device. Its
4226 * possible that the handles may change from the previous setting, so this
4227 * code keeping handles updating if changed.
4228 *
4229 * Return nothing.
4230 */
4231static void
4232_scsih_sas_host_refresh(struct MPT3SAS_ADAPTER *ioc)
4233{
4234 u16 sz;
4235 u16 ioc_status;
4236 int i;
4237 Mpi2ConfigReply_t mpi_reply;
4238 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
4239 u16 attached_handle;
4240 u8 link_rate;
4241
4242 dtmprintk(ioc, pr_info(MPT3SAS_FMT
4243 "updating handles for sas_host(0x%016llx)\n",
4244 ioc->name, (unsigned long long)ioc->sas_hba.sas_address));
4245
4246 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys
4247 * sizeof(Mpi2SasIOUnit0PhyData_t));
4248 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
4249 if (!sas_iounit_pg0) {
4250 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4251 ioc->name, __FILE__, __LINE__, __func__);
4252 return;
4253 }
4254
4255 if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
4256 sas_iounit_pg0, sz)) != 0)
4257 goto out;
4258 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
4259 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
4260 goto out;
4261 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
4262 link_rate = sas_iounit_pg0->PhyData[i].NegotiatedLinkRate >> 4;
4263 if (i == 0)
4264 ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
4265 PhyData[0].ControllerDevHandle);
4266 ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
4267 attached_handle = le16_to_cpu(sas_iounit_pg0->PhyData[i].
4268 AttachedDevHandle);
4269 if (attached_handle && link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
4270 link_rate = MPI2_SAS_NEG_LINK_RATE_1_5;
4271 mpt3sas_transport_update_links(ioc, ioc->sas_hba.sas_address,
4272 attached_handle, i, link_rate);
4273 }
4274 out:
4275 kfree(sas_iounit_pg0);
4276}
4277
4278/**
4279 * _scsih_sas_host_add - create sas host object
4280 * @ioc: per adapter object
4281 *
4282 * Creating host side data object, stored in ioc->sas_hba
4283 *
4284 * Return nothing.
4285 */
4286static void
4287_scsih_sas_host_add(struct MPT3SAS_ADAPTER *ioc)
4288{
4289 int i;
4290 Mpi2ConfigReply_t mpi_reply;
4291 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
4292 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
4293 Mpi2SasPhyPage0_t phy_pg0;
4294 Mpi2SasDevicePage0_t sas_device_pg0;
4295 Mpi2SasEnclosurePage0_t enclosure_pg0;
4296 u16 ioc_status;
4297 u16 sz;
4298 u8 device_missing_delay;
4299
4300 mpt3sas_config_get_number_hba_phys(ioc, &ioc->sas_hba.num_phys);
4301 if (!ioc->sas_hba.num_phys) {
4302 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4303 ioc->name, __FILE__, __LINE__, __func__);
4304 return;
4305 }
4306
4307 /* sas_iounit page 0 */
4308 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys *
4309 sizeof(Mpi2SasIOUnit0PhyData_t));
4310 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
4311 if (!sas_iounit_pg0) {
4312 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4313 ioc->name, __FILE__, __LINE__, __func__);
4314 return;
4315 }
4316 if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
4317 sas_iounit_pg0, sz))) {
4318 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4319 ioc->name, __FILE__, __LINE__, __func__);
4320 goto out;
4321 }
4322 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4323 MPI2_IOCSTATUS_MASK;
4324 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4325 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4326 ioc->name, __FILE__, __LINE__, __func__);
4327 goto out;
4328 }
4329
4330 /* sas_iounit page 1 */
4331 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
4332 sizeof(Mpi2SasIOUnit1PhyData_t));
4333 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
4334 if (!sas_iounit_pg1) {
4335 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4336 ioc->name, __FILE__, __LINE__, __func__);
4337 goto out;
4338 }
4339 if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
4340 sas_iounit_pg1, sz))) {
4341 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4342 ioc->name, __FILE__, __LINE__, __func__);
4343 goto out;
4344 }
4345 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4346 MPI2_IOCSTATUS_MASK;
4347 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4348 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4349 ioc->name, __FILE__, __LINE__, __func__);
4350 goto out;
4351 }
4352
4353 ioc->io_missing_delay =
4354 sas_iounit_pg1->IODeviceMissingDelay;
4355 device_missing_delay =
4356 sas_iounit_pg1->ReportDeviceMissingDelay;
4357 if (device_missing_delay & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
4358 ioc->device_missing_delay = (device_missing_delay &
4359 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
4360 else
4361 ioc->device_missing_delay = device_missing_delay &
4362 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
4363
4364 ioc->sas_hba.parent_dev = &ioc->shost->shost_gendev;
4365 ioc->sas_hba.phy = kcalloc(ioc->sas_hba.num_phys,
4366 sizeof(struct _sas_phy), GFP_KERNEL);
4367 if (!ioc->sas_hba.phy) {
4368 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4369 ioc->name, __FILE__, __LINE__, __func__);
4370 goto out;
4371 }
4372 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
4373 if ((mpt3sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
4374 i))) {
4375 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4376 ioc->name, __FILE__, __LINE__, __func__);
4377 goto out;
4378 }
4379 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4380 MPI2_IOCSTATUS_MASK;
4381 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4382 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4383 ioc->name, __FILE__, __LINE__, __func__);
4384 goto out;
4385 }
4386
4387 if (i == 0)
4388 ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
4389 PhyData[0].ControllerDevHandle);
4390 ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
4391 ioc->sas_hba.phy[i].phy_id = i;
4392 mpt3sas_transport_add_host_phy(ioc, &ioc->sas_hba.phy[i],
4393 phy_pg0, ioc->sas_hba.parent_dev);
4394 }
4395 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
4396 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.handle))) {
4397 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4398 ioc->name, __FILE__, __LINE__, __func__);
4399 goto out;
4400 }
4401 ioc->sas_hba.enclosure_handle =
4402 le16_to_cpu(sas_device_pg0.EnclosureHandle);
4403 ioc->sas_hba.sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4404 pr_info(MPT3SAS_FMT
4405 "host_add: handle(0x%04x), sas_addr(0x%016llx), phys(%d)\n",
4406 ioc->name, ioc->sas_hba.handle,
4407 (unsigned long long) ioc->sas_hba.sas_address,
4408 ioc->sas_hba.num_phys) ;
4409
4410 if (ioc->sas_hba.enclosure_handle) {
4411 if (!(mpt3sas_config_get_enclosure_pg0(ioc, &mpi_reply,
4412 &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
4413 ioc->sas_hba.enclosure_handle)))
4414 ioc->sas_hba.enclosure_logical_id =
4415 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
4416 }
4417
4418 out:
4419 kfree(sas_iounit_pg1);
4420 kfree(sas_iounit_pg0);
4421}
4422
4423/**
4424 * _scsih_expander_add - creating expander object
4425 * @ioc: per adapter object
4426 * @handle: expander handle
4427 *
4428 * Creating expander object, stored in ioc->sas_expander_list.
4429 *
4430 * Return 0 for success, else error.
4431 */
4432static int
4433_scsih_expander_add(struct MPT3SAS_ADAPTER *ioc, u16 handle)
4434{
4435 struct _sas_node *sas_expander;
4436 Mpi2ConfigReply_t mpi_reply;
4437 Mpi2ExpanderPage0_t expander_pg0;
4438 Mpi2ExpanderPage1_t expander_pg1;
4439 Mpi2SasEnclosurePage0_t enclosure_pg0;
4440 u32 ioc_status;
4441 u16 parent_handle;
4442 u64 sas_address, sas_address_parent = 0;
4443 int i;
4444 unsigned long flags;
4445 struct _sas_port *mpt3sas_port = NULL;
4446
4447 int rc = 0;
4448
4449 if (!handle)
4450 return -1;
4451
4452 if (ioc->shost_recovery || ioc->pci_error_recovery)
4453 return -1;
4454
4455 if ((mpt3sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
4456 MPI2_SAS_EXPAND_PGAD_FORM_HNDL, handle))) {
4457 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4458 ioc->name, __FILE__, __LINE__, __func__);
4459 return -1;
4460 }
4461
4462 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4463 MPI2_IOCSTATUS_MASK;
4464 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4465 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4466 ioc->name, __FILE__, __LINE__, __func__);
4467 return -1;
4468 }
4469
4470 /* handle out of order topology events */
4471 parent_handle = le16_to_cpu(expander_pg0.ParentDevHandle);
4472 if (_scsih_get_sas_address(ioc, parent_handle, &sas_address_parent)
4473 != 0) {
4474 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4475 ioc->name, __FILE__, __LINE__, __func__);
4476 return -1;
4477 }
4478 if (sas_address_parent != ioc->sas_hba.sas_address) {
4479 spin_lock_irqsave(&ioc->sas_node_lock, flags);
4480 sas_expander = mpt3sas_scsih_expander_find_by_sas_address(ioc,
4481 sas_address_parent);
4482 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4483 if (!sas_expander) {
4484 rc = _scsih_expander_add(ioc, parent_handle);
4485 if (rc != 0)
4486 return rc;
4487 }
4488 }
4489
4490 spin_lock_irqsave(&ioc->sas_node_lock, flags);
4491 sas_address = le64_to_cpu(expander_pg0.SASAddress);
4492 sas_expander = mpt3sas_scsih_expander_find_by_sas_address(ioc,
4493 sas_address);
4494 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4495
4496 if (sas_expander)
4497 return 0;
4498
4499 sas_expander = kzalloc(sizeof(struct _sas_node),
4500 GFP_KERNEL);
4501 if (!sas_expander) {
4502 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4503 ioc->name, __FILE__, __LINE__, __func__);
4504 return -1;
4505 }
4506
4507 sas_expander->handle = handle;
4508 sas_expander->num_phys = expander_pg0.NumPhys;
4509 sas_expander->sas_address_parent = sas_address_parent;
4510 sas_expander->sas_address = sas_address;
4511
4512 pr_info(MPT3SAS_FMT "expander_add: handle(0x%04x)," \
4513 " parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n", ioc->name,
4514 handle, parent_handle, (unsigned long long)
4515 sas_expander->sas_address, sas_expander->num_phys);
4516
4517 if (!sas_expander->num_phys)
4518 goto out_fail;
4519 sas_expander->phy = kcalloc(sas_expander->num_phys,
4520 sizeof(struct _sas_phy), GFP_KERNEL);
4521 if (!sas_expander->phy) {
4522 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4523 ioc->name, __FILE__, __LINE__, __func__);
4524 rc = -1;
4525 goto out_fail;
4526 }
4527
4528 INIT_LIST_HEAD(&sas_expander->sas_port_list);
4529 mpt3sas_port = mpt3sas_transport_port_add(ioc, handle,
4530 sas_address_parent);
4531 if (!mpt3sas_port) {
4532 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4533 ioc->name, __FILE__, __LINE__, __func__);
4534 rc = -1;
4535 goto out_fail;
4536 }
4537 sas_expander->parent_dev = &mpt3sas_port->rphy->dev;
4538
4539 for (i = 0 ; i < sas_expander->num_phys ; i++) {
4540 if ((mpt3sas_config_get_expander_pg1(ioc, &mpi_reply,
4541 &expander_pg1, i, handle))) {
4542 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4543 ioc->name, __FILE__, __LINE__, __func__);
4544 rc = -1;
4545 goto out_fail;
4546 }
4547 sas_expander->phy[i].handle = handle;
4548 sas_expander->phy[i].phy_id = i;
4549
4550 if ((mpt3sas_transport_add_expander_phy(ioc,
4551 &sas_expander->phy[i], expander_pg1,
4552 sas_expander->parent_dev))) {
4553 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4554 ioc->name, __FILE__, __LINE__, __func__);
4555 rc = -1;
4556 goto out_fail;
4557 }
4558 }
4559
4560 if (sas_expander->enclosure_handle) {
4561 if (!(mpt3sas_config_get_enclosure_pg0(ioc, &mpi_reply,
4562 &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
4563 sas_expander->enclosure_handle)))
4564 sas_expander->enclosure_logical_id =
4565 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
4566 }
4567
4568 _scsih_expander_node_add(ioc, sas_expander);
4569 return 0;
4570
4571 out_fail:
4572
4573 if (mpt3sas_port)
4574 mpt3sas_transport_port_remove(ioc, sas_expander->sas_address,
4575 sas_address_parent);
4576 kfree(sas_expander);
4577 return rc;
4578}
4579
4580/**
4581 * mpt3sas_expander_remove - removing expander object
4582 * @ioc: per adapter object
4583 * @sas_address: expander sas_address
4584 *
4585 * Return nothing.
4586 */
4587void
4588mpt3sas_expander_remove(struct MPT3SAS_ADAPTER *ioc, u64 sas_address)
4589{
4590 struct _sas_node *sas_expander;
4591 unsigned long flags;
4592
4593 if (ioc->shost_recovery)
4594 return;
4595
4596 spin_lock_irqsave(&ioc->sas_node_lock, flags);
4597 sas_expander = mpt3sas_scsih_expander_find_by_sas_address(ioc,
4598 sas_address);
4599 if (sas_expander)
4600 list_del(&sas_expander->list);
4601 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4602 if (sas_expander)
4603 _scsih_expander_node_remove(ioc, sas_expander);
4604}
4605
4606/**
4607 * _scsih_done - internal SCSI_IO callback handler.
4608 * @ioc: per adapter object
4609 * @smid: system request message index
4610 * @msix_index: MSIX table index supplied by the OS
4611 * @reply: reply message frame(lower 32bit addr)
4612 *
4613 * Callback handler when sending internal generated SCSI_IO.
4614 * The callback index passed is `ioc->scsih_cb_idx`
4615 *
4616 * Return 1 meaning mf should be freed from _base_interrupt
4617 * 0 means the mf is freed from this function.
4618 */
4619static u8
4620_scsih_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
4621{
4622 MPI2DefaultReply_t *mpi_reply;
4623
4624 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
4625 if (ioc->scsih_cmds.status == MPT3_CMD_NOT_USED)
4626 return 1;
4627 if (ioc->scsih_cmds.smid != smid)
4628 return 1;
4629 ioc->scsih_cmds.status |= MPT3_CMD_COMPLETE;
4630 if (mpi_reply) {
4631 memcpy(ioc->scsih_cmds.reply, mpi_reply,
4632 mpi_reply->MsgLength*4);
4633 ioc->scsih_cmds.status |= MPT3_CMD_REPLY_VALID;
4634 }
4635 ioc->scsih_cmds.status &= ~MPT3_CMD_PENDING;
4636 complete(&ioc->scsih_cmds.done);
4637 return 1;
4638}
4639
4640
4641
4642
4643#define MPT3_MAX_LUNS (255)
4644
4645
4646/**
4647 * _scsih_check_access_status - check access flags
4648 * @ioc: per adapter object
4649 * @sas_address: sas address
4650 * @handle: sas device handle
4651 * @access_flags: errors returned during discovery of the device
4652 *
4653 * Return 0 for success, else failure
4654 */
4655static u8
4656_scsih_check_access_status(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
4657 u16 handle, u8 access_status)
4658{
4659 u8 rc = 1;
4660 char *desc = NULL;
4661
4662 switch (access_status) {
4663 case MPI2_SAS_DEVICE0_ASTATUS_NO_ERRORS:
4664 case MPI2_SAS_DEVICE0_ASTATUS_SATA_NEEDS_INITIALIZATION:
4665 rc = 0;
4666 break;
4667 case MPI2_SAS_DEVICE0_ASTATUS_SATA_CAPABILITY_FAILED:
4668 desc = "sata capability failed";
4669 break;
4670 case MPI2_SAS_DEVICE0_ASTATUS_SATA_AFFILIATION_CONFLICT:
4671 desc = "sata affiliation conflict";
4672 break;
4673 case MPI2_SAS_DEVICE0_ASTATUS_ROUTE_NOT_ADDRESSABLE:
4674 desc = "route not addressable";
4675 break;
4676 case MPI2_SAS_DEVICE0_ASTATUS_SMP_ERROR_NOT_ADDRESSABLE:
4677 desc = "smp error not addressable";
4678 break;
4679 case MPI2_SAS_DEVICE0_ASTATUS_DEVICE_BLOCKED:
4680 desc = "device blocked";
4681 break;
4682 case MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED:
4683 case MPI2_SAS_DEVICE0_ASTATUS_SIF_UNKNOWN:
4684 case MPI2_SAS_DEVICE0_ASTATUS_SIF_AFFILIATION_CONFLICT:
4685 case MPI2_SAS_DEVICE0_ASTATUS_SIF_DIAG:
4686 case MPI2_SAS_DEVICE0_ASTATUS_SIF_IDENTIFICATION:
4687 case MPI2_SAS_DEVICE0_ASTATUS_SIF_CHECK_POWER:
4688 case MPI2_SAS_DEVICE0_ASTATUS_SIF_PIO_SN:
4689 case MPI2_SAS_DEVICE0_ASTATUS_SIF_MDMA_SN:
4690 case MPI2_SAS_DEVICE0_ASTATUS_SIF_UDMA_SN:
4691 case MPI2_SAS_DEVICE0_ASTATUS_SIF_ZONING_VIOLATION:
4692 case MPI2_SAS_DEVICE0_ASTATUS_SIF_NOT_ADDRESSABLE:
4693 case MPI2_SAS_DEVICE0_ASTATUS_SIF_MAX:
4694 desc = "sata initialization failed";
4695 break;
4696 default:
4697 desc = "unknown";
4698 break;
4699 }
4700
4701 if (!rc)
4702 return 0;
4703
4704 pr_err(MPT3SAS_FMT
4705 "discovery errors(%s): sas_address(0x%016llx), handle(0x%04x)\n",
4706 ioc->name, desc, (unsigned long long)sas_address, handle);
4707 return rc;
4708}
4709
4710/**
4711 * _scsih_check_device - checking device responsiveness
4712 * @ioc: per adapter object
4713 * @parent_sas_address: sas address of parent expander or sas host
4714 * @handle: attached device handle
4715 * @phy_numberv: phy number
4716 * @link_rate: new link rate
4717 *
4718 * Returns nothing.
4719 */
4720static void
4721_scsih_check_device(struct MPT3SAS_ADAPTER *ioc,
4722 u64 parent_sas_address, u16 handle, u8 phy_number, u8 link_rate)
4723{
4724 Mpi2ConfigReply_t mpi_reply;
4725 Mpi2SasDevicePage0_t sas_device_pg0;
4726 struct _sas_device *sas_device;
4727 u32 ioc_status;
4728 unsigned long flags;
4729 u64 sas_address;
4730 struct scsi_target *starget;
4731 struct MPT3SAS_TARGET *sas_target_priv_data;
4732 u32 device_info;
4733
4734
4735 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
4736 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle)))
4737 return;
4738
4739 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
4740 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
4741 return;
4742
4743 /* wide port handling ~ we need only handle device once for the phy that
4744 * is matched in sas device page zero
4745 */
4746 if (phy_number != sas_device_pg0.PhyNum)
4747 return;
4748
4749 /* check if this is end device */
4750 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
4751 if (!(_scsih_is_end_device(device_info)))
4752 return;
4753
4754 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4755 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4756 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
4757 sas_address);
4758
4759 if (!sas_device) {
4760 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4761 return;
4762 }
4763
4764 if (unlikely(sas_device->handle != handle)) {
4765 starget = sas_device->starget;
4766 sas_target_priv_data = starget->hostdata;
4767 starget_printk(KERN_INFO, starget,
4768 "handle changed from(0x%04x) to (0x%04x)!!!\n",
4769 sas_device->handle, handle);
4770 sas_target_priv_data->handle = handle;
4771 sas_device->handle = handle;
4772 }
4773
4774 /* check if device is present */
4775 if (!(le16_to_cpu(sas_device_pg0.Flags) &
4776 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
4777 pr_err(MPT3SAS_FMT
4778 "device is not present handle(0x%04x), flags!!!\n",
4779 ioc->name, handle);
4780 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4781 return;
4782 }
4783
4784 /* check if there were any issues with discovery */
4785 if (_scsih_check_access_status(ioc, sas_address, handle,
4786 sas_device_pg0.AccessStatus)) {
4787 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4788 return;
4789 }
4790
4791 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4792 _scsih_ublock_io_device(ioc, sas_address);
4793
4794}
4795
4796/**
4797 * _scsih_add_device - creating sas device object
4798 * @ioc: per adapter object
4799 * @handle: sas device handle
4800 * @phy_num: phy number end device attached to
4801 * @is_pd: is this hidden raid component
4802 *
4803 * Creating end device object, stored in ioc->sas_device_list.
4804 *
4805 * Returns 0 for success, non-zero for failure.
4806 */
4807static int
4808_scsih_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle, u8 phy_num,
4809 u8 is_pd)
4810{
4811 Mpi2ConfigReply_t mpi_reply;
4812 Mpi2SasDevicePage0_t sas_device_pg0;
4813 Mpi2SasEnclosurePage0_t enclosure_pg0;
4814 struct _sas_device *sas_device;
4815 u32 ioc_status;
4816 u64 sas_address;
4817 u32 device_info;
4818 unsigned long flags;
4819
4820 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
4821 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
4822 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4823 ioc->name, __FILE__, __LINE__, __func__);
4824 return -1;
4825 }
4826
4827 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4828 MPI2_IOCSTATUS_MASK;
4829 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4830 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4831 ioc->name, __FILE__, __LINE__, __func__);
4832 return -1;
4833 }
4834
4835 /* check if this is end device */
4836 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
4837 if (!(_scsih_is_end_device(device_info)))
4838 return -1;
4839 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4840
4841 /* check if device is present */
4842 if (!(le16_to_cpu(sas_device_pg0.Flags) &
4843 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
4844 pr_err(MPT3SAS_FMT "device is not present handle(0x04%x)!!!\n",
4845 ioc->name, handle);
4846 return -1;
4847 }
4848
4849 /* check if there were any issues with discovery */
4850 if (_scsih_check_access_status(ioc, sas_address, handle,
4851 sas_device_pg0.AccessStatus))
4852 return -1;
4853
4854 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4855 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
4856 sas_address);
4857 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4858
4859 if (sas_device)
4860 return -1;
4861
4862 sas_device = kzalloc(sizeof(struct _sas_device),
4863 GFP_KERNEL);
4864 if (!sas_device) {
4865 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4866 ioc->name, __FILE__, __LINE__, __func__);
4867 return 0;
4868 }
4869
4870 sas_device->handle = handle;
4871 if (_scsih_get_sas_address(ioc,
4872 le16_to_cpu(sas_device_pg0.ParentDevHandle),
4873 &sas_device->sas_address_parent) != 0)
4874 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
4875 ioc->name, __FILE__, __LINE__, __func__);
4876 sas_device->enclosure_handle =
4877 le16_to_cpu(sas_device_pg0.EnclosureHandle);
4878 sas_device->slot =
4879 le16_to_cpu(sas_device_pg0.Slot);
4880 sas_device->device_info = device_info;
4881 sas_device->sas_address = sas_address;
4882 sas_device->phy = sas_device_pg0.PhyNum;
4883 sas_device->fast_path = (le16_to_cpu(sas_device_pg0.Flags) &
4884 MPI25_SAS_DEVICE0_FLAGS_FAST_PATH_CAPABLE) ? 1 : 0;
4885
4886 /* get enclosure_logical_id */
4887 if (sas_device->enclosure_handle && !(mpt3sas_config_get_enclosure_pg0(
4888 ioc, &mpi_reply, &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
4889 sas_device->enclosure_handle)))
4890 sas_device->enclosure_logical_id =
4891 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
4892
4893 /* get device name */
4894 sas_device->device_name = le64_to_cpu(sas_device_pg0.DeviceName);
4895
4896 if (ioc->wait_for_discovery_to_complete)
4897 _scsih_sas_device_init_add(ioc, sas_device);
4898 else
4899 _scsih_sas_device_add(ioc, sas_device);
4900
4901 return 0;
4902}
4903
4904/**
4905 * _scsih_remove_device - removing sas device object
4906 * @ioc: per adapter object
4907 * @sas_device_delete: the sas_device object
4908 *
4909 * Return nothing.
4910 */
4911static void
4912_scsih_remove_device(struct MPT3SAS_ADAPTER *ioc,
4913 struct _sas_device *sas_device)
4914{
4915 struct MPT3SAS_TARGET *sas_target_priv_data;
4916
4917
4918 dewtprintk(ioc, pr_info(MPT3SAS_FMT
4919 "%s: enter: handle(0x%04x), sas_addr(0x%016llx)\n",
4920 ioc->name, __func__,
4921 sas_device->handle, (unsigned long long)
4922 sas_device->sas_address));
4923
4924 if (sas_device->starget && sas_device->starget->hostdata) {
4925 sas_target_priv_data = sas_device->starget->hostdata;
4926 sas_target_priv_data->deleted = 1;
4927 _scsih_ublock_io_device(ioc, sas_device->sas_address);
4928 sas_target_priv_data->handle =
4929 MPT3SAS_INVALID_DEVICE_HANDLE;
4930 }
4931 mpt3sas_transport_port_remove(ioc,
4932 sas_device->sas_address,
4933 sas_device->sas_address_parent);
4934
4935 pr_info(MPT3SAS_FMT
4936 "removing handle(0x%04x), sas_addr(0x%016llx)\n",
4937 ioc->name, sas_device->handle,
4938 (unsigned long long) sas_device->sas_address);
4939
4940 dewtprintk(ioc, pr_info(MPT3SAS_FMT
4941 "%s: exit: handle(0x%04x), sas_addr(0x%016llx)\n",
4942 ioc->name, __func__,
4943 sas_device->handle, (unsigned long long)
4944 sas_device->sas_address));
4945
4946 kfree(sas_device);
4947}
4948
4949#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
4950/**
4951 * _scsih_sas_topology_change_event_debug - debug for topology event
4952 * @ioc: per adapter object
4953 * @event_data: event data payload
4954 * Context: user.
4955 */
4956static void
4957_scsih_sas_topology_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
4958 Mpi2EventDataSasTopologyChangeList_t *event_data)
4959{
4960 int i;
4961 u16 handle;
4962 u16 reason_code;
4963 u8 phy_number;
4964 char *status_str = NULL;
4965 u8 link_rate, prev_link_rate;
4966
4967 switch (event_data->ExpStatus) {
4968 case MPI2_EVENT_SAS_TOPO_ES_ADDED:
4969 status_str = "add";
4970 break;
4971 case MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING:
4972 status_str = "remove";
4973 break;
4974 case MPI2_EVENT_SAS_TOPO_ES_RESPONDING:
4975 case 0:
4976 status_str = "responding";
4977 break;
4978 case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
4979 status_str = "remove delay";
4980 break;
4981 default:
4982 status_str = "unknown status";
4983 break;
4984 }
4985 pr_info(MPT3SAS_FMT "sas topology change: (%s)\n",
4986 ioc->name, status_str);
4987 pr_info("\thandle(0x%04x), enclosure_handle(0x%04x) " \
4988 "start_phy(%02d), count(%d)\n",
4989 le16_to_cpu(event_data->ExpanderDevHandle),
4990 le16_to_cpu(event_data->EnclosureHandle),
4991 event_data->StartPhyNum, event_data->NumEntries);
4992 for (i = 0; i < event_data->NumEntries; i++) {
4993 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
4994 if (!handle)
4995 continue;
4996 phy_number = event_data->StartPhyNum + i;
4997 reason_code = event_data->PHY[i].PhyStatus &
4998 MPI2_EVENT_SAS_TOPO_RC_MASK;
4999 switch (reason_code) {
5000 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
5001 status_str = "target add";
5002 break;
5003 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
5004 status_str = "target remove";
5005 break;
5006 case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
5007 status_str = "delay target remove";
5008 break;
5009 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
5010 status_str = "link rate change";
5011 break;
5012 case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
5013 status_str = "target responding";
5014 break;
5015 default:
5016 status_str = "unknown";
5017 break;
5018 }
5019 link_rate = event_data->PHY[i].LinkRate >> 4;
5020 prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
5021 pr_info("\tphy(%02d), attached_handle(0x%04x): %s:" \
5022 " link rate: new(0x%02x), old(0x%02x)\n", phy_number,
5023 handle, status_str, link_rate, prev_link_rate);
5024
5025 }
5026}
5027#endif
5028
5029/**
5030 * _scsih_sas_topology_change_event - handle topology changes
5031 * @ioc: per adapter object
5032 * @fw_event: The fw_event_work object
5033 * Context: user.
5034 *
5035 */
5036static int
5037_scsih_sas_topology_change_event(struct MPT3SAS_ADAPTER *ioc,
5038 struct fw_event_work *fw_event)
5039{
5040 int i;
5041 u16 parent_handle, handle;
5042 u16 reason_code;
5043 u8 phy_number, max_phys;
5044 struct _sas_node *sas_expander;
5045 u64 sas_address;
5046 unsigned long flags;
5047 u8 link_rate, prev_link_rate;
5048 Mpi2EventDataSasTopologyChangeList_t *event_data = fw_event->event_data;
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 =
5246 fw_event->event_data;
5247
5248#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
5249 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5250 _scsih_sas_device_status_change_event_debug(ioc,
5251 event_data);
5252#endif
5253
5254 /* In MPI Revision K (0xC), the internal device reset complete was
5255 * implemented, so avoid setting tm_busy flag for older firmware.
5256 */
5257 if ((ioc->facts.HeaderVersion >> 8) < 0xC)
5258 return;
5259
5260 if (event_data->ReasonCode !=
5261 MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET &&
5262 event_data->ReasonCode !=
5263 MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET)
5264 return;
5265
5266 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5267 sas_address = le64_to_cpu(event_data->SASAddress);
5268 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
5269 sas_address);
5270
5271 if (!sas_device || !sas_device->starget) {
5272 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5273 return;
5274 }
5275
5276 target_priv_data = sas_device->starget->hostdata;
5277 if (!target_priv_data) {
5278 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5279 return;
5280 }
5281
5282 if (event_data->ReasonCode ==
5283 MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET)
5284 target_priv_data->tm_busy = 1;
5285 else
5286 target_priv_data->tm_busy = 0;
5287 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5288}
5289
5290#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
5291/**
5292 * _scsih_sas_enclosure_dev_status_change_event_debug - debug for enclosure
5293 * event
5294 * @ioc: per adapter object
5295 * @event_data: event data payload
5296 * Context: user.
5297 *
5298 * Return nothing.
5299 */
5300static void
5301_scsih_sas_enclosure_dev_status_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
5302 Mpi2EventDataSasEnclDevStatusChange_t *event_data)
5303{
5304 char *reason_str = NULL;
5305
5306 switch (event_data->ReasonCode) {
5307 case MPI2_EVENT_SAS_ENCL_RC_ADDED:
5308 reason_str = "enclosure add";
5309 break;
5310 case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING:
5311 reason_str = "enclosure remove";
5312 break;
5313 default:
5314 reason_str = "unknown reason";
5315 break;
5316 }
5317
5318 pr_info(MPT3SAS_FMT "enclosure status change: (%s)\n"
5319 "\thandle(0x%04x), enclosure logical id(0x%016llx)"
5320 " number slots(%d)\n", ioc->name, reason_str,
5321 le16_to_cpu(event_data->EnclosureHandle),
5322 (unsigned long long)le64_to_cpu(event_data->EnclosureLogicalID),
5323 le16_to_cpu(event_data->StartSlot));
5324}
5325#endif
5326
5327/**
5328 * _scsih_sas_enclosure_dev_status_change_event - handle enclosure events
5329 * @ioc: per adapter object
5330 * @fw_event: The fw_event_work object
5331 * Context: user.
5332 *
5333 * Return nothing.
5334 */
5335static void
5336_scsih_sas_enclosure_dev_status_change_event(struct MPT3SAS_ADAPTER *ioc,
5337 struct fw_event_work *fw_event)
5338{
5339#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
5340 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5341 _scsih_sas_enclosure_dev_status_change_event_debug(ioc,
5342 fw_event->event_data);
5343#endif
5344}
5345
5346/**
5347 * _scsih_sas_broadcast_primitive_event - handle broadcast events
5348 * @ioc: per adapter object
5349 * @fw_event: The fw_event_work object
5350 * Context: user.
5351 *
5352 * Return nothing.
5353 */
5354static void
5355_scsih_sas_broadcast_primitive_event(struct MPT3SAS_ADAPTER *ioc,
5356 struct fw_event_work *fw_event)
5357{
5358 struct scsi_cmnd *scmd;
5359 struct scsi_device *sdev;
5360 u16 smid, handle;
5361 u32 lun;
5362 struct MPT3SAS_DEVICE *sas_device_priv_data;
5363 u32 termination_count;
5364 u32 query_count;
5365 Mpi2SCSITaskManagementReply_t *mpi_reply;
5366 Mpi2EventDataSasBroadcastPrimitive_t *event_data = fw_event->event_data;
5367 u16 ioc_status;
5368 unsigned long flags;
5369 int r;
5370 u8 max_retries = 0;
5371 u8 task_abort_retries;
5372
5373 mutex_lock(&ioc->tm_cmds.mutex);
5374 pr_info(MPT3SAS_FMT
5375 "%s: enter: phy number(%d), width(%d)\n",
5376 ioc->name, __func__, event_data->PhyNum,
5377 event_data->PortWidth);
5378
5379 _scsih_block_io_all_device(ioc);
5380
5381 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5382 mpi_reply = ioc->tm_cmds.reply;
5383 broadcast_aen_retry:
5384
5385 /* sanity checks for retrying this loop */
5386 if (max_retries++ == 5) {
5387 dewtprintk(ioc, pr_info(MPT3SAS_FMT "%s: giving up\n",
5388 ioc->name, __func__));
5389 goto out;
5390 } else if (max_retries > 1)
5391 dewtprintk(ioc, pr_info(MPT3SAS_FMT "%s: %d retry\n",
5392 ioc->name, __func__, max_retries - 1));
5393
5394 termination_count = 0;
5395 query_count = 0;
5396 for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
5397 if (ioc->shost_recovery)
5398 goto out;
5399 scmd = _scsih_scsi_lookup_get(ioc, smid);
5400 if (!scmd)
5401 continue;
5402 sdev = scmd->device;
5403 sas_device_priv_data = sdev->hostdata;
5404 if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
5405 continue;
5406 /* skip hidden raid components */
5407 if (sas_device_priv_data->sas_target->flags &
5408 MPT_TARGET_FLAGS_RAID_COMPONENT)
5409 continue;
5410 /* skip volumes */
5411 if (sas_device_priv_data->sas_target->flags &
5412 MPT_TARGET_FLAGS_VOLUME)
5413 continue;
5414
5415 handle = sas_device_priv_data->sas_target->handle;
5416 lun = sas_device_priv_data->lun;
5417 query_count++;
5418
5419 if (ioc->shost_recovery)
5420 goto out;
5421
5422 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
5423 r = mpt3sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
c62e46de 5424 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30,
f92363d1
SR		 5425 TM_MUTEX_OFF);
5426 if (r == FAILED) {
5427 sdev_printk(KERN_WARNING, sdev,
5428 "mpt3sas_scsih_issue_tm: FAILED when sending "
5429 "QUERY_TASK: scmd(%p)\n", scmd);
5430 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5431 goto broadcast_aen_retry;
5432 }
5433 ioc_status = le16_to_cpu(mpi_reply->IOCStatus)
5434 & MPI2_IOCSTATUS_MASK;
5435 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
5436 sdev_printk(KERN_WARNING, sdev,
5437 "query task: FAILED with IOCSTATUS(0x%04x), scmd(%p)\n",
5438 ioc_status, scmd);
5439 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5440 goto broadcast_aen_retry;
5441 }
5442
5443 /* see if IO is still owned by IOC and target */
5444 if (mpi_reply->ResponseCode ==
5445 MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
5446 mpi_reply->ResponseCode ==
5447 MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC) {
5448 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5449 continue;
5450 }
5451 task_abort_retries = 0;
5452 tm_retry:
5453 if (task_abort_retries++ == 60) {
5454 dewtprintk(ioc, pr_info(MPT3SAS_FMT
5455 "%s: ABORT_TASK: giving up\n", ioc->name,
5456 __func__));
5457 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5458 goto broadcast_aen_retry;
5459 }
5460
5461 if (ioc->shost_recovery)
5462 goto out_no_lock;
5463
5464 r = mpt3sas_scsih_issue_tm(ioc, handle, sdev->channel, sdev->id,
5465 sdev->lun, MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30,
c62e46de 5466 TM_MUTEX_OFF);
f92363d1
SR		 5467 if (r == FAILED) {
5468 sdev_printk(KERN_WARNING, sdev,
5469 "mpt3sas_scsih_issue_tm: ABORT_TASK: FAILED : "
5470 "scmd(%p)\n", scmd);
5471 goto tm_retry;
5472 }
5473
5474 if (task_abort_retries > 1)
5475 sdev_printk(KERN_WARNING, sdev,
5476 "mpt3sas_scsih_issue_tm: ABORT_TASK: RETRIES (%d):"
5477 " scmd(%p)\n",
5478 task_abort_retries - 1, scmd);
5479
5480 termination_count += le32_to_cpu(mpi_reply->TerminationCount);
5481 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5482 }
5483
5484 if (ioc->broadcast_aen_pending) {
5485 dewtprintk(ioc, pr_info(MPT3SAS_FMT
5486 "%s: loop back due to pending AEN\n",
5487 ioc->name, __func__));
5488 ioc->broadcast_aen_pending = 0;
5489 goto broadcast_aen_retry;
5490 }
5491
5492 out:
5493 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
5494 out_no_lock:
5495
5496 dewtprintk(ioc, pr_info(MPT3SAS_FMT
5497 "%s - exit, query_count = %d termination_count = %d\n",
5498 ioc->name, __func__, query_count, termination_count));
5499
5500 ioc->broadcast_aen_busy = 0;
5501 if (!ioc->shost_recovery)
5502 _scsih_ublock_io_all_device(ioc);
5503 mutex_unlock(&ioc->tm_cmds.mutex);
5504}
5505
5506/**
5507 * _scsih_sas_discovery_event - handle discovery events
5508 * @ioc: per adapter object
5509 * @fw_event: The fw_event_work object
5510 * Context: user.
5511 *
5512 * Return nothing.
5513 */
5514static void
5515_scsih_sas_discovery_event(struct MPT3SAS_ADAPTER *ioc,
5516 struct fw_event_work *fw_event)
5517{
5518 Mpi2EventDataSasDiscovery_t *event_data = fw_event->event_data;
5519
5520#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
5521 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) {
5522 pr_info(MPT3SAS_FMT "discovery event: (%s)", ioc->name,
5523 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
5524 "start" : "stop");
5525 if (event_data->DiscoveryStatus)
5526 pr_info("discovery_status(0x%08x)",
5527 le32_to_cpu(event_data->DiscoveryStatus));
5528 pr_info("\n");
5529 }
5530#endif
5531
5532 if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED &&
5533 !ioc->sas_hba.num_phys) {
5534 if (disable_discovery > 0 && ioc->shost_recovery) {
5535 /* Wait for the reset to complete */
5536 while (ioc->shost_recovery)
5537 ssleep(1);
5538 }
5539 _scsih_sas_host_add(ioc);
5540 }
5541}
5542
5543/**
5544 * _scsih_ir_fastpath - turn on fastpath for IR physdisk
5545 * @ioc: per adapter object
5546 * @handle: device handle for physical disk
5547 * @phys_disk_num: physical disk number
5548 *
5549 * Return 0 for success, else failure.
5550 */
5551static int
5552_scsih_ir_fastpath(struct MPT3SAS_ADAPTER *ioc, u16 handle, u8 phys_disk_num)
5553{
5554 Mpi2RaidActionRequest_t *mpi_request;
5555 Mpi2RaidActionReply_t *mpi_reply;
5556 u16 smid;
5557 u8 issue_reset = 0;
5558 int rc = 0;
5559 u16 ioc_status;
5560 u32 log_info;
5561
5562
5563 mutex_lock(&ioc->scsih_cmds.mutex);
5564
5565 if (ioc->scsih_cmds.status != MPT3_CMD_NOT_USED) {
5566 pr_err(MPT3SAS_FMT "%s: scsih_cmd in use\n",
5567 ioc->name, __func__);
5568 rc = -EAGAIN;
5569 goto out;
5570 }
5571 ioc->scsih_cmds.status = MPT3_CMD_PENDING;
5572
5573 smid = mpt3sas_base_get_smid(ioc, ioc->scsih_cb_idx);
5574 if (!smid) {
5575 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
5576 ioc->name, __func__);
5577 ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
5578 rc = -EAGAIN;
5579 goto out;
5580 }
5581
5582 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
5583 ioc->scsih_cmds.smid = smid;
5584 memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t));
5585
5586 mpi_request->Function = MPI2_FUNCTION_RAID_ACTION;
5587 mpi_request->Action = MPI2_RAID_ACTION_PHYSDISK_HIDDEN;
5588 mpi_request->PhysDiskNum = phys_disk_num;
5589
5590 dewtprintk(ioc, pr_info(MPT3SAS_FMT "IR RAID_ACTION: turning fast "\
5591 "path on for handle(0x%04x), phys_disk_num (0x%02x)\n", ioc->name,
5592 handle, phys_disk_num));
5593
5594 init_completion(&ioc->scsih_cmds.done);
5595 mpt3sas_base_put_smid_default(ioc, smid);
5596 wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
5597
5598 if (!(ioc->scsih_cmds.status & MPT3_CMD_COMPLETE)) {
5599 pr_err(MPT3SAS_FMT "%s: timeout\n",
5600 ioc->name, __func__);
5601 if (!(ioc->scsih_cmds.status & MPT3_CMD_RESET))
5602 issue_reset = 1;
5603 rc = -EFAULT;
5604 goto out;
5605 }
5606
5607 if (ioc->scsih_cmds.status & MPT3_CMD_REPLY_VALID) {
5608
5609 mpi_reply = ioc->scsih_cmds.reply;
5610 ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
5611 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
5612 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
5613 else
5614 log_info = 0;
5615 ioc_status &= MPI2_IOCSTATUS_MASK;
5616 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
5617 dewtprintk(ioc, pr_info(MPT3SAS_FMT
5618 "IR RAID_ACTION: failed: ioc_status(0x%04x), "
5619 "loginfo(0x%08x)!!!\n", ioc->name, ioc_status,
5620 log_info));
5621 rc = -EFAULT;
5622 } else
5623 dewtprintk(ioc, pr_info(MPT3SAS_FMT
5624 "IR RAID_ACTION: completed successfully\n",
5625 ioc->name));
5626 }
5627
5628 out:
5629 ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
5630 mutex_unlock(&ioc->scsih_cmds.mutex);
5631
5632 if (issue_reset)
5633 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
5634 FORCE_BIG_HAMMER);
5635 return rc;
5636}
5637
5638/**
5639 * _scsih_reprobe_lun - reprobing lun
5640 * @sdev: scsi device struct
5641 * @no_uld_attach: sdev->no_uld_attach flag setting
5642 *
5643 **/
5644static void
5645_scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach)
5646{
5647 int rc;
5648 sdev->no_uld_attach = no_uld_attach ? 1 : 0;
5649 sdev_printk(KERN_INFO, sdev, "%s raid component\n",
5650 sdev->no_uld_attach ? "hidding" : "exposing");
5651 rc = scsi_device_reprobe(sdev);
5652}
5653
5654/**
5655 * _scsih_sas_volume_add - add new volume
5656 * @ioc: per adapter object
5657 * @element: IR config element data
5658 * Context: user.
5659 *
5660 * Return nothing.
5661 */
5662static void
5663_scsih_sas_volume_add(struct MPT3SAS_ADAPTER *ioc,
5664 Mpi2EventIrConfigElement_t *element)
5665{
5666 struct _raid_device *raid_device;
5667 unsigned long flags;
5668 u64 wwid;
5669 u16 handle = le16_to_cpu(element->VolDevHandle);
5670 int rc;
5671
5672 mpt3sas_config_get_volume_wwid(ioc, handle, &wwid);
5673 if (!wwid) {
5674 pr_err(MPT3SAS_FMT
5675 "failure at %s:%d/%s()!\n", ioc->name,
5676 __FILE__, __LINE__, __func__);
5677 return;
5678 }
5679
5680 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5681 raid_device = _scsih_raid_device_find_by_wwid(ioc, wwid);
5682 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5683
5684 if (raid_device)
5685 return;
5686
5687 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
5688 if (!raid_device) {
5689 pr_err(MPT3SAS_FMT
5690 "failure at %s:%d/%s()!\n", ioc->name,
5691 __FILE__, __LINE__, __func__);
5692 return;
5693 }
5694
5695 raid_device->id = ioc->sas_id++;
5696 raid_device->channel = RAID_CHANNEL;
5697 raid_device->handle = handle;
5698 raid_device->wwid = wwid;
5699 _scsih_raid_device_add(ioc, raid_device);
5700 if (!ioc->wait_for_discovery_to_complete) {
5701 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
5702 raid_device->id, 0);
5703 if (rc)
5704 _scsih_raid_device_remove(ioc, raid_device);
5705 } else {
5706 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5707 _scsih_determine_boot_device(ioc, raid_device, 1);
5708 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5709 }
5710}
5711
5712/**
5713 * _scsih_sas_volume_delete - delete volume
5714 * @ioc: per adapter object
5715 * @handle: volume device handle
5716 * Context: user.
5717 *
5718 * Return nothing.
5719 */
5720static void
5721_scsih_sas_volume_delete(struct MPT3SAS_ADAPTER *ioc, u16 handle)
5722{
5723 struct _raid_device *raid_device;
5724 unsigned long flags;
5725 struct MPT3SAS_TARGET *sas_target_priv_data;
5726 struct scsi_target *starget = NULL;
5727
5728 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5729 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
5730 if (raid_device) {
5731 if (raid_device->starget) {
5732 starget = raid_device->starget;
5733 sas_target_priv_data = starget->hostdata;
5734 sas_target_priv_data->deleted = 1;
5735 }
5736 pr_info(MPT3SAS_FMT "removing handle(0x%04x), wwid(0x%016llx)\n",
5737 ioc->name, raid_device->handle,
5738 (unsigned long long) raid_device->wwid);
5739 list_del(&raid_device->list);
5740 kfree(raid_device);
5741 }
5742 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5743 if (starget)
5744 scsi_remove_target(&starget->dev);
5745}
5746
5747/**
5748 * _scsih_sas_pd_expose - expose pd component to /dev/sdX
5749 * @ioc: per adapter object
5750 * @element: IR config element data
5751 * Context: user.
5752 *
5753 * Return nothing.
5754 */
5755static void
5756_scsih_sas_pd_expose(struct MPT3SAS_ADAPTER *ioc,
5757 Mpi2EventIrConfigElement_t *element)
5758{
5759 struct _sas_device *sas_device;
5760 struct scsi_target *starget = NULL;
5761 struct MPT3SAS_TARGET *sas_target_priv_data;
5762 unsigned long flags;
5763 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5764
5765 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5766 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5767 if (sas_device) {
5768 sas_device->volume_handle = 0;
5769 sas_device->volume_wwid = 0;
5770 clear_bit(handle, ioc->pd_handles);
5771 if (sas_device->starget && sas_device->starget->hostdata) {
5772 starget = sas_device->starget;
5773 sas_target_priv_data = starget->hostdata;
5774 sas_target_priv_data->flags &=
5775 ~MPT_TARGET_FLAGS_RAID_COMPONENT;
5776 }
5777 }
5778 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5779 if (!sas_device)
5780 return;
5781
5782 /* exposing raid component */
5783 if (starget)
5784 starget_for_each_device(starget, NULL, _scsih_reprobe_lun);
5785}
5786
5787/**
5788 * _scsih_sas_pd_hide - hide pd component from /dev/sdX
5789 * @ioc: per adapter object
5790 * @element: IR config element data
5791 * Context: user.
5792 *
5793 * Return nothing.
5794 */
5795static void
5796_scsih_sas_pd_hide(struct MPT3SAS_ADAPTER *ioc,
5797 Mpi2EventIrConfigElement_t *element)
5798{
5799 struct _sas_device *sas_device;
5800 struct scsi_target *starget = NULL;
5801 struct MPT3SAS_TARGET *sas_target_priv_data;
5802 unsigned long flags;
5803 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5804 u16 volume_handle = 0;
5805 u64 volume_wwid = 0;
5806
5807 mpt3sas_config_get_volume_handle(ioc, handle, &volume_handle);
5808 if (volume_handle)
5809 mpt3sas_config_get_volume_wwid(ioc, volume_handle,
5810 &volume_wwid);
5811
5812 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5813 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5814 if (sas_device) {
5815 set_bit(handle, ioc->pd_handles);
5816 if (sas_device->starget && sas_device->starget->hostdata) {
5817 starget = sas_device->starget;
5818 sas_target_priv_data = starget->hostdata;
5819 sas_target_priv_data->flags |=
5820 MPT_TARGET_FLAGS_RAID_COMPONENT;
5821 sas_device->volume_handle = volume_handle;
5822 sas_device->volume_wwid = volume_wwid;
5823 }
5824 }
5825 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5826 if (!sas_device)
5827 return;
5828
5829 /* hiding raid component */
5830 _scsih_ir_fastpath(ioc, handle, element->PhysDiskNum);
5831 if (starget)
5832 starget_for_each_device(starget, (void *)1, _scsih_reprobe_lun);
5833}
5834
5835/**
5836 * _scsih_sas_pd_delete - delete pd component
5837 * @ioc: per adapter object
5838 * @element: IR config element data
5839 * Context: user.
5840 *
5841 * Return nothing.
5842 */
5843static void
5844_scsih_sas_pd_delete(struct MPT3SAS_ADAPTER *ioc,
5845 Mpi2EventIrConfigElement_t *element)
5846{
5847 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5848
5849 _scsih_device_remove_by_handle(ioc, handle);
5850}
5851
5852/**
5853 * _scsih_sas_pd_add - remove pd component
5854 * @ioc: per adapter object
5855 * @element: IR config element data
5856 * Context: user.
5857 *
5858 * Return nothing.
5859 */
5860static void
5861_scsih_sas_pd_add(struct MPT3SAS_ADAPTER *ioc,
5862 Mpi2EventIrConfigElement_t *element)
5863{
5864 struct _sas_device *sas_device;
5865 unsigned long flags;
5866 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5867 Mpi2ConfigReply_t mpi_reply;
5868 Mpi2SasDevicePage0_t sas_device_pg0;
5869 u32 ioc_status;
5870 u64 sas_address;
5871 u16 parent_handle;
5872
5873 set_bit(handle, ioc->pd_handles);
5874
5875 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5876 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5877 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5878 if (sas_device) {
5879 _scsih_ir_fastpath(ioc, handle, element->PhysDiskNum);
5880 return;
5881 }
5882
5883 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
5884 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
5885 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
5886 ioc->name, __FILE__, __LINE__, __func__);
5887 return;
5888 }
5889
5890 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5891 MPI2_IOCSTATUS_MASK;
5892 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
5893 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
5894 ioc->name, __FILE__, __LINE__, __func__);
5895 return;
5896 }
5897
5898 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
5899 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
5900 mpt3sas_transport_update_links(ioc, sas_address, handle,
5901 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
5902
5903 _scsih_ir_fastpath(ioc, handle, element->PhysDiskNum);
5904 _scsih_add_device(ioc, handle, 0, 1);
5905}
5906
5907#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
5908/**
5909 * _scsih_sas_ir_config_change_event_debug - debug for IR Config Change events
5910 * @ioc: per adapter object
5911 * @event_data: event data payload
5912 * Context: user.
5913 *
5914 * Return nothing.
5915 */
5916static void
5917_scsih_sas_ir_config_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
5918 Mpi2EventDataIrConfigChangeList_t *event_data)
5919{
5920 Mpi2EventIrConfigElement_t *element;
5921 u8 element_type;
5922 int i;
5923 char *reason_str = NULL, *element_str = NULL;
5924
5925 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
5926
5927 pr_info(MPT3SAS_FMT "raid config change: (%s), elements(%d)\n",
5928 ioc->name, (le32_to_cpu(event_data->Flags) &
5929 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ?
5930 "foreign" : "native", event_data->NumElements);
5931 for (i = 0; i < event_data->NumElements; i++, element++) {
5932 switch (element->ReasonCode) {
5933 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
5934 reason_str = "add";
5935 break;
5936 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
5937 reason_str = "remove";
5938 break;
5939 case MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE:
5940 reason_str = "no change";
5941 break;
5942 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
5943 reason_str = "hide";
5944 break;
5945 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
5946 reason_str = "unhide";
5947 break;
5948 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
5949 reason_str = "volume_created";
5950 break;
5951 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
5952 reason_str = "volume_deleted";
5953 break;
5954 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
5955 reason_str = "pd_created";
5956 break;
5957 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
5958 reason_str = "pd_deleted";
5959 break;
5960 default:
5961 reason_str = "unknown reason";
5962 break;
5963 }
5964 element_type = le16_to_cpu(element->ElementFlags) &
5965 MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
5966 switch (element_type) {
5967 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT:
5968 element_str = "volume";
5969 break;
5970 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT:
5971 element_str = "phys disk";
5972 break;
5973 case MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT:
5974 element_str = "hot spare";
5975 break;
5976 default:
5977 element_str = "unknown element";
5978 break;
5979 }
5980 pr_info("\t(%s:%s), vol handle(0x%04x), " \
5981 "pd handle(0x%04x), pd num(0x%02x)\n", element_str,
5982 reason_str, le16_to_cpu(element->VolDevHandle),
5983 le16_to_cpu(element->PhysDiskDevHandle),
5984 element->PhysDiskNum);
5985 }
5986}
5987#endif
5988
5989/**
5990 * _scsih_sas_ir_config_change_event - handle ir configuration change events
5991 * @ioc: per adapter object
5992 * @fw_event: The fw_event_work object
5993 * Context: user.
5994 *
5995 * Return nothing.
5996 */
5997static void
5998_scsih_sas_ir_config_change_event(struct MPT3SAS_ADAPTER *ioc,
5999 struct fw_event_work *fw_event)
6000{
6001 Mpi2EventIrConfigElement_t *element;
6002 int i;
6003 u8 foreign_config;
6004 Mpi2EventDataIrConfigChangeList_t *event_data = fw_event->event_data;
6005
6006#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
6007 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
6008 _scsih_sas_ir_config_change_event_debug(ioc, event_data);
6009
6010#endif
6011
6012 foreign_config = (le32_to_cpu(event_data->Flags) &
6013 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
6014
6015 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
6016 if (ioc->shost_recovery) {
6017
6018 for (i = 0; i < event_data->NumElements; i++, element++) {
6019 if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_HIDE)
6020 _scsih_ir_fastpath(ioc,
6021 le16_to_cpu(element->PhysDiskDevHandle),
6022 element->PhysDiskNum);
6023 }
6024 return;
6025 }
6026 for (i = 0; i < event_data->NumElements; i++, element++) {
6027
6028 switch (element->ReasonCode) {
6029 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
6030 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
6031 if (!foreign_config)
6032 _scsih_sas_volume_add(ioc, element);
6033 break;
6034 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
6035 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
6036 if (!foreign_config)
6037 _scsih_sas_volume_delete(ioc,
6038 le16_to_cpu(element->VolDevHandle));
6039 break;
6040 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
6041 _scsih_sas_pd_hide(ioc, element);
6042 break;
6043 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
6044 _scsih_sas_pd_expose(ioc, element);
6045 break;
6046 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
6047 _scsih_sas_pd_add(ioc, element);
6048 break;
6049 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
6050 _scsih_sas_pd_delete(ioc, element);
6051 break;
6052 }
6053 }
6054}
6055
6056/**
6057 * _scsih_sas_ir_volume_event - IR volume event
6058 * @ioc: per adapter object
6059 * @fw_event: The fw_event_work object
6060 * Context: user.
6061 *
6062 * Return nothing.
6063 */
6064static void
6065_scsih_sas_ir_volume_event(struct MPT3SAS_ADAPTER *ioc,
6066 struct fw_event_work *fw_event)
6067{
6068 u64 wwid;
6069 unsigned long flags;
6070 struct _raid_device *raid_device;
6071 u16 handle;
6072 u32 state;
6073 int rc;
6074 Mpi2EventDataIrVolume_t *event_data = fw_event->event_data;
6075
6076 if (ioc->shost_recovery)
6077 return;
6078
6079 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
6080 return;
6081
6082 handle = le16_to_cpu(event_data->VolDevHandle);
6083 state = le32_to_cpu(event_data->NewValue);
6084 dewtprintk(ioc, pr_info(MPT3SAS_FMT
6085 "%s: handle(0x%04x), old(0x%08x), new(0x%08x)\n",
6086 ioc->name, __func__, handle,
6087 le32_to_cpu(event_data->PreviousValue), state));
6088 switch (state) {
6089 case MPI2_RAID_VOL_STATE_MISSING:
6090 case MPI2_RAID_VOL_STATE_FAILED:
6091 _scsih_sas_volume_delete(ioc, handle);
6092 break;
6093
6094 case MPI2_RAID_VOL_STATE_ONLINE:
6095 case MPI2_RAID_VOL_STATE_DEGRADED:
6096 case MPI2_RAID_VOL_STATE_OPTIMAL:
6097
6098 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6099 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
6100 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6101
6102 if (raid_device)
6103 break;
6104
6105 mpt3sas_config_get_volume_wwid(ioc, handle, &wwid);
6106 if (!wwid) {
6107 pr_err(MPT3SAS_FMT
6108 "failure at %s:%d/%s()!\n", ioc->name,
6109 __FILE__, __LINE__, __func__);
6110 break;
6111 }
6112
6113 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
6114 if (!raid_device) {
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->id = ioc->sas_id++;
6122 raid_device->channel = RAID_CHANNEL;
6123 raid_device->handle = handle;
6124 raid_device->wwid = wwid;
6125 _scsih_raid_device_add(ioc, raid_device);
6126 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
6127 raid_device->id, 0);
6128 if (rc)
6129 _scsih_raid_device_remove(ioc, raid_device);
6130 break;
6131
6132 case MPI2_RAID_VOL_STATE_INITIALIZING:
6133 default:
6134 break;
6135 }
6136}
6137
6138/**
6139 * _scsih_sas_ir_physical_disk_event - PD event
6140 * @ioc: per adapter object
6141 * @fw_event: The fw_event_work object
6142 * Context: user.
6143 *
6144 * Return nothing.
6145 */
6146static void
6147_scsih_sas_ir_physical_disk_event(struct MPT3SAS_ADAPTER *ioc,
6148 struct fw_event_work *fw_event)
6149{
6150 u16 handle, parent_handle;
6151 u32 state;
6152 struct _sas_device *sas_device;
6153 unsigned long flags;
6154 Mpi2ConfigReply_t mpi_reply;
6155 Mpi2SasDevicePage0_t sas_device_pg0;
6156 u32 ioc_status;
6157 Mpi2EventDataIrPhysicalDisk_t *event_data = fw_event->event_data;
6158 u64 sas_address;
6159
6160 if (ioc->shost_recovery)
6161 return;
6162
6163 if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED)
6164 return;
6165
6166 handle = le16_to_cpu(event_data->PhysDiskDevHandle);
6167 state = le32_to_cpu(event_data->NewValue);
6168
6169 dewtprintk(ioc, pr_info(MPT3SAS_FMT
6170 "%s: handle(0x%04x), old(0x%08x), new(0x%08x)\n",
6171 ioc->name, __func__, handle,
6172 le32_to_cpu(event_data->PreviousValue), state));
6173 switch (state) {
6174 case MPI2_RAID_PD_STATE_ONLINE:
6175 case MPI2_RAID_PD_STATE_DEGRADED:
6176 case MPI2_RAID_PD_STATE_REBUILDING:
6177 case MPI2_RAID_PD_STATE_OPTIMAL:
6178 case MPI2_RAID_PD_STATE_HOT_SPARE:
6179
6180 set_bit(handle, ioc->pd_handles);
6181 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6182 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
6183 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6184
6185 if (sas_device)
6186 return;
6187
6188 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
6189 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
6190 handle))) {
6191 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
6192 ioc->name, __FILE__, __LINE__, __func__);
6193 return;
6194 }
6195
6196 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6197 MPI2_IOCSTATUS_MASK;
6198 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6199 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
6200 ioc->name, __FILE__, __LINE__, __func__);
6201 return;
6202 }
6203
6204 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
6205 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
6206 mpt3sas_transport_update_links(ioc, sas_address, handle,
6207 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
6208
6209 _scsih_add_device(ioc, handle, 0, 1);
6210
6211 break;
6212
6213 case MPI2_RAID_PD_STATE_OFFLINE:
6214 case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
6215 case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
6216 default:
6217 break;
6218 }
6219}
6220
6221#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
6222/**
6223 * _scsih_sas_ir_operation_status_event_debug - debug for IR op event
6224 * @ioc: per adapter object
6225 * @event_data: event data payload
6226 * Context: user.
6227 *
6228 * Return nothing.
6229 */
6230static void
6231_scsih_sas_ir_operation_status_event_debug(struct MPT3SAS_ADAPTER *ioc,
6232 Mpi2EventDataIrOperationStatus_t *event_data)
6233{
6234 char *reason_str = NULL;
6235
6236 switch (event_data->RAIDOperation) {
6237 case MPI2_EVENT_IR_RAIDOP_RESYNC:
6238 reason_str = "resync";
6239 break;
6240 case MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION:
6241 reason_str = "online capacity expansion";
6242 break;
6243 case MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK:
6244 reason_str = "consistency check";
6245 break;
6246 case MPI2_EVENT_IR_RAIDOP_BACKGROUND_INIT:
6247 reason_str = "background init";
6248 break;
6249 case MPI2_EVENT_IR_RAIDOP_MAKE_DATA_CONSISTENT:
6250 reason_str = "make data consistent";
6251 break;
6252 }
6253
6254 if (!reason_str)
6255 return;
6256
6257 pr_info(MPT3SAS_FMT "raid operational status: (%s)" \
6258 "\thandle(0x%04x), percent complete(%d)\n",
6259 ioc->name, reason_str,
6260 le16_to_cpu(event_data->VolDevHandle),
6261 event_data->PercentComplete);
6262}
6263#endif
6264
6265/**
6266 * _scsih_sas_ir_operation_status_event - handle RAID operation events
6267 * @ioc: per adapter object
6268 * @fw_event: The fw_event_work object
6269 * Context: user.
6270 *
6271 * Return nothing.
6272 */
6273static void
6274_scsih_sas_ir_operation_status_event(struct MPT3SAS_ADAPTER *ioc,
6275 struct fw_event_work *fw_event)
6276{
6277 Mpi2EventDataIrOperationStatus_t *event_data = fw_event->event_data;
6278 static struct _raid_device *raid_device;
6279 unsigned long flags;
6280 u16 handle;
6281
6282#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
6283 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
6284 _scsih_sas_ir_operation_status_event_debug(ioc,
6285 event_data);
6286#endif
6287
6288 /* code added for raid transport support */
6289 if (event_data->RAIDOperation == MPI2_EVENT_IR_RAIDOP_RESYNC) {
6290
6291 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6292 handle = le16_to_cpu(event_data->VolDevHandle);
6293 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
6294 if (raid_device)
6295 raid_device->percent_complete =
6296 event_data->PercentComplete;
6297 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6298 }
6299}
6300
6301/**
6302 * _scsih_prep_device_scan - initialize parameters prior to device scan
6303 * @ioc: per adapter object
6304 *
6305 * Set the deleted flag prior to device scan. If the device is found during
6306 * the scan, then we clear the deleted flag.
6307 */
6308static void
6309_scsih_prep_device_scan(struct MPT3SAS_ADAPTER *ioc)
6310{
6311 struct MPT3SAS_DEVICE *sas_device_priv_data;
6312 struct scsi_device *sdev;
6313
6314 shost_for_each_device(sdev, ioc->shost) {
6315 sas_device_priv_data = sdev->hostdata;
6316 if (sas_device_priv_data && sas_device_priv_data->sas_target)
6317 sas_device_priv_data->sas_target->deleted = 1;
6318 }
6319}
6320
6321/**
6322 * _scsih_mark_responding_sas_device - mark a sas_devices as responding
6323 * @ioc: per adapter object
6324 * @sas_address: sas address
6325 * @slot: enclosure slot id
6326 * @handle: device handle
6327 *
6328 * After host reset, find out whether devices are still responding.
6329 * Used in _scsih_remove_unresponsive_sas_devices.
6330 *
6331 * Return nothing.
6332 */
6333static void
6334_scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
6335 u16 slot, u16 handle)
6336{
6337 struct MPT3SAS_TARGET *sas_target_priv_data = NULL;
6338 struct scsi_target *starget;
6339 struct _sas_device *sas_device;
6340 unsigned long flags;
6341
6342 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6343 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
6344 if (sas_device->sas_address == sas_address &&
6345 sas_device->slot == slot) {
6346 sas_device->responding = 1;
6347 starget = sas_device->starget;
6348 if (starget && starget->hostdata) {
6349 sas_target_priv_data = starget->hostdata;
6350 sas_target_priv_data->tm_busy = 0;
6351 sas_target_priv_data->deleted = 0;
6352 } else
6353 sas_target_priv_data = NULL;
6354 if (starget)
6355 starget_printk(KERN_INFO, starget,
6356 "handle(0x%04x), sas_addr(0x%016llx), "
6357 "enclosure logical id(0x%016llx), "
6358 "slot(%d)\n", handle,
6359 (unsigned long long)sas_device->sas_address,
6360 (unsigned long long)
6361 sas_device->enclosure_logical_id,
6362 sas_device->slot);
6363 if (sas_device->handle == handle)
6364 goto out;
6365 pr_info("\thandle changed from(0x%04x)!!!\n",
6366 sas_device->handle);
6367 sas_device->handle = handle;
6368 if (sas_target_priv_data)
6369 sas_target_priv_data->handle = handle;
6370 goto out;
6371 }
6372 }
6373 out:
6374 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6375}
6376
6377/**
6378 * _scsih_search_responding_sas_devices -
6379 * @ioc: per adapter object
6380 *
6381 * After host reset, find out whether devices are still responding.
6382 * If not remove.
6383 *
6384 * Return nothing.
6385 */
6386static void
6387_scsih_search_responding_sas_devices(struct MPT3SAS_ADAPTER *ioc)
6388{
6389 Mpi2SasDevicePage0_t sas_device_pg0;
6390 Mpi2ConfigReply_t mpi_reply;
6391 u16 ioc_status;
6392 u16 handle;
6393 u32 device_info;
6394
6395 pr_info(MPT3SAS_FMT "search for end-devices: start\n", ioc->name);
6396
6397 if (list_empty(&ioc->sas_device_list))
6398 goto out;
6399
6400 handle = 0xFFFF;
6401 while (!(mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
6402 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
6403 handle))) {
6404 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6405 MPI2_IOCSTATUS_MASK;
14be49ac 6406 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
f92363d1
SR		 6407 break;
6408 handle = le16_to_cpu(sas_device_pg0.DevHandle);
6409 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
6410 if (!(_scsih_is_end_device(device_info)))
6411 continue;
6412 _scsih_mark_responding_sas_device(ioc,
6413 le64_to_cpu(sas_device_pg0.SASAddress),
6414 le16_to_cpu(sas_device_pg0.Slot), handle);
6415 }
6416
6417 out:
6418 pr_info(MPT3SAS_FMT "search for end-devices: complete\n",
6419 ioc->name);
6420}
6421
6422/**
6423 * _scsih_mark_responding_raid_device - mark a raid_device as responding
6424 * @ioc: per adapter object
6425 * @wwid: world wide identifier for raid volume
6426 * @handle: device handle
6427 *
6428 * After host reset, find out whether devices are still responding.
6429 * Used in _scsih_remove_unresponsive_raid_devices.
6430 *
6431 * Return nothing.
6432 */
6433static void
6434_scsih_mark_responding_raid_device(struct MPT3SAS_ADAPTER *ioc, u64 wwid,
6435 u16 handle)
6436{
6437 struct MPT3SAS_TARGET *sas_target_priv_data;
6438 struct scsi_target *starget;
6439 struct _raid_device *raid_device;
6440 unsigned long flags;
6441
6442 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6443 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
6444 if (raid_device->wwid == wwid && raid_device->starget) {
6445 starget = raid_device->starget;
6446 if (starget && starget->hostdata) {
6447 sas_target_priv_data = starget->hostdata;
6448 sas_target_priv_data->deleted = 0;
6449 } else
6450 sas_target_priv_data = NULL;
6451 raid_device->responding = 1;
6452 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6453 starget_printk(KERN_INFO, raid_device->starget,
6454 "handle(0x%04x), wwid(0x%016llx)\n", handle,
6455 (unsigned long long)raid_device->wwid);
6456 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6457 if (raid_device->handle == handle) {
6458 spin_unlock_irqrestore(&ioc->raid_device_lock,
6459 flags);
6460 return;
6461 }
6462 pr_info("\thandle changed from(0x%04x)!!!\n",
6463 raid_device->handle);
6464 raid_device->handle = handle;
6465 if (sas_target_priv_data)
6466 sas_target_priv_data->handle = handle;
6467 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6468 return;
6469 }
6470 }
6471 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6472}
6473
6474/**
6475 * _scsih_search_responding_raid_devices -
6476 * @ioc: per adapter object
6477 *
6478 * After host reset, find out whether devices are still responding.
6479 * If not remove.
6480 *
6481 * Return nothing.
6482 */
6483static void
6484_scsih_search_responding_raid_devices(struct MPT3SAS_ADAPTER *ioc)
6485{
6486 Mpi2RaidVolPage1_t volume_pg1;
6487 Mpi2RaidVolPage0_t volume_pg0;
6488 Mpi2RaidPhysDiskPage0_t pd_pg0;
6489 Mpi2ConfigReply_t mpi_reply;
6490 u16 ioc_status;
6491 u16 handle;
6492 u8 phys_disk_num;
6493
6494 if (!ioc->ir_firmware)
6495 return;
6496
6497 pr_info(MPT3SAS_FMT "search for raid volumes: start\n",
6498 ioc->name);
6499
6500 if (list_empty(&ioc->raid_device_list))
6501 goto out;
6502
6503 handle = 0xFFFF;
6504 while (!(mpt3sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
6505 &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
6506 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6507 MPI2_IOCSTATUS_MASK;
14be49ac 6508 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
f92363d1
SR		 6509 break;
6510 handle = le16_to_cpu(volume_pg1.DevHandle);
6511
6512 if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
6513 &volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
6514 sizeof(Mpi2RaidVolPage0_t)))
6515 continue;
6516
6517 if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
6518 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
6519 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED)
6520 _scsih_mark_responding_raid_device(ioc,
6521 le64_to_cpu(volume_pg1.WWID), handle);
6522 }
6523
6524 /* refresh the pd_handles */
6525 phys_disk_num = 0xFF;
6526 memset(ioc->pd_handles, 0, ioc->pd_handles_sz);
6527 while (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
6528 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
6529 phys_disk_num))) {
6530 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6531 MPI2_IOCSTATUS_MASK;
14be49ac 6532 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
f92363d1
SR		 6533 break;
6534 phys_disk_num = pd_pg0.PhysDiskNum;
6535 handle = le16_to_cpu(pd_pg0.DevHandle);
6536 set_bit(handle, ioc->pd_handles);
6537 }
6538 out:
6539 pr_info(MPT3SAS_FMT "search for responding raid volumes: complete\n",
6540 ioc->name);
6541}
6542
6543/**
6544 * _scsih_mark_responding_expander - mark a expander as responding
6545 * @ioc: per adapter object
6546 * @sas_address: sas address
6547 * @handle:
6548 *
6549 * After host reset, find out whether devices are still responding.
6550 * Used in _scsih_remove_unresponsive_expanders.
6551 *
6552 * Return nothing.
6553 */
6554static void
6555_scsih_mark_responding_expander(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
6556 u16 handle)
6557{
6558 struct _sas_node *sas_expander;
6559 unsigned long flags;
6560 int i;
6561
6562 spin_lock_irqsave(&ioc->sas_node_lock, flags);
6563 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
6564 if (sas_expander->sas_address != sas_address)
6565 continue;
6566 sas_expander->responding = 1;
6567 if (sas_expander->handle == handle)
6568 goto out;
6569 pr_info("\texpander(0x%016llx): handle changed" \
6570 " from(0x%04x) to (0x%04x)!!!\n",
6571 (unsigned long long)sas_expander->sas_address,
6572 sas_expander->handle, handle);
6573 sas_expander->handle = handle;
6574 for (i = 0 ; i < sas_expander->num_phys ; i++)
6575 sas_expander->phy[i].handle = handle;
6576 goto out;
6577 }
6578 out:
6579 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
6580}
6581
6582/**
6583 * _scsih_search_responding_expanders -
6584 * @ioc: per adapter object
6585 *
6586 * After host reset, find out whether devices are still responding.
6587 * If not remove.
6588 *
6589 * Return nothing.
6590 */
6591static void
6592_scsih_search_responding_expanders(struct MPT3SAS_ADAPTER *ioc)
6593{
6594 Mpi2ExpanderPage0_t expander_pg0;
6595 Mpi2ConfigReply_t mpi_reply;
6596 u16 ioc_status;
6597 u64 sas_address;
6598 u16 handle;
6599
6600 pr_info(MPT3SAS_FMT "search for expanders: start\n", ioc->name);
6601
6602 if (list_empty(&ioc->sas_expander_list))
6603 goto out;
6604
6605 handle = 0xFFFF;
6606 while (!(mpt3sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
6607 MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
6608
6609 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6610 MPI2_IOCSTATUS_MASK;
14be49ac 6611 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
f92363d1
SR		 6612 break;
6613
6614 handle = le16_to_cpu(expander_pg0.DevHandle);
6615 sas_address = le64_to_cpu(expander_pg0.SASAddress);
6616 pr_info("\texpander present: handle(0x%04x), sas_addr(0x%016llx)\n",
6617 handle,
6618 (unsigned long long)sas_address);
6619 _scsih_mark_responding_expander(ioc, sas_address, handle);
6620 }
6621
6622 out:
6623 pr_info(MPT3SAS_FMT "search for expanders: complete\n", ioc->name);
6624}
6625
6626/**
6627 * _scsih_remove_unresponding_sas_devices - removing unresponding devices
6628 * @ioc: per adapter object
6629 *
6630 * Return nothing.
6631 */
6632static void
6633_scsih_remove_unresponding_sas_devices(struct MPT3SAS_ADAPTER *ioc)
6634{
6635 struct _sas_device *sas_device, *sas_device_next;
6636 struct _sas_node *sas_expander, *sas_expander_next;
6637 struct _raid_device *raid_device, *raid_device_next;
6638 struct list_head tmp_list;
6639 unsigned long flags;
6640
6641 pr_info(MPT3SAS_FMT "removing unresponding devices: start\n",
6642 ioc->name);
6643
6644 /* removing unresponding end devices */
6645 pr_info(MPT3SAS_FMT "removing unresponding devices: end-devices\n",
6646 ioc->name);
6647 list_for_each_entry_safe(sas_device, sas_device_next,
6648 &ioc->sas_device_list, list) {
6649 if (!sas_device->responding)
6650 mpt3sas_device_remove_by_sas_address(ioc,
6651 sas_device->sas_address);
6652 else
6653 sas_device->responding = 0;
6654 }
6655
6656 /* removing unresponding volumes */
6657 if (ioc->ir_firmware) {
6658 pr_info(MPT3SAS_FMT "removing unresponding devices: volumes\n",
6659 ioc->name);
6660 list_for_each_entry_safe(raid_device, raid_device_next,
6661 &ioc->raid_device_list, list) {
6662 if (!raid_device->responding)
6663 _scsih_sas_volume_delete(ioc,
6664 raid_device->handle);
6665 else
6666 raid_device->responding = 0;
6667 }
6668 }
6669
6670 /* removing unresponding expanders */
6671 pr_info(MPT3SAS_FMT "removing unresponding devices: expanders\n",
6672 ioc->name);
6673 spin_lock_irqsave(&ioc->sas_node_lock, flags);
6674 INIT_LIST_HEAD(&tmp_list);
6675 list_for_each_entry_safe(sas_expander, sas_expander_next,
6676 &ioc->sas_expander_list, list) {
6677 if (!sas_expander->responding)
6678 list_move_tail(&sas_expander->list, &tmp_list);
6679 else
6680 sas_expander->responding = 0;
6681 }
6682 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
6683 list_for_each_entry_safe(sas_expander, sas_expander_next, &tmp_list,
6684 list) {
6685 list_del(&sas_expander->list);
6686 _scsih_expander_node_remove(ioc, sas_expander);
6687 }
6688
6689 pr_info(MPT3SAS_FMT "removing unresponding devices: complete\n",
6690 ioc->name);
6691
6692 /* unblock devices */
6693 _scsih_ublock_io_all_device(ioc);
6694}
6695
6696static void
6697_scsih_refresh_expander_links(struct MPT3SAS_ADAPTER *ioc,
6698 struct _sas_node *sas_expander, u16 handle)
6699{
6700 Mpi2ExpanderPage1_t expander_pg1;
6701 Mpi2ConfigReply_t mpi_reply;
6702 int i;
6703
6704 for (i = 0 ; i < sas_expander->num_phys ; i++) {
6705 if ((mpt3sas_config_get_expander_pg1(ioc, &mpi_reply,
6706 &expander_pg1, i, handle))) {
6707 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
6708 ioc->name, __FILE__, __LINE__, __func__);
6709 return;
6710 }
6711
6712 mpt3sas_transport_update_links(ioc, sas_expander->sas_address,
6713 le16_to_cpu(expander_pg1.AttachedDevHandle), i,
6714 expander_pg1.NegotiatedLinkRate >> 4);
6715 }
6716}
6717
6718/**
6719 * _scsih_scan_for_devices_after_reset - scan for devices after host reset
6720 * @ioc: per adapter object
6721 *
6722 * Return nothing.
6723 */
6724static void
6725_scsih_scan_for_devices_after_reset(struct MPT3SAS_ADAPTER *ioc)
6726{
6727 Mpi2ExpanderPage0_t expander_pg0;
6728 Mpi2SasDevicePage0_t sas_device_pg0;
6729 Mpi2RaidVolPage1_t volume_pg1;
6730 Mpi2RaidVolPage0_t volume_pg0;
6731 Mpi2RaidPhysDiskPage0_t pd_pg0;
6732 Mpi2EventIrConfigElement_t element;
6733 Mpi2ConfigReply_t mpi_reply;
6734 u8 phys_disk_num;
6735 u16 ioc_status;
6736 u16 handle, parent_handle;
6737 u64 sas_address;
6738 struct _sas_device *sas_device;
6739 struct _sas_node *expander_device;
6740 static struct _raid_device *raid_device;
6741 u8 retry_count;
6742 unsigned long flags;
6743
6744 pr_info(MPT3SAS_FMT "scan devices: start\n", ioc->name);
6745
6746 _scsih_sas_host_refresh(ioc);
6747
6748 pr_info(MPT3SAS_FMT "\tscan devices: expanders start\n", ioc->name);
6749
6750 /* expanders */
6751 handle = 0xFFFF;
6752 while (!(mpt3sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
6753 MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
6754 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6755 MPI2_IOCSTATUS_MASK;
f92363d1
SR		 6756 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6757 pr_info(MPT3SAS_FMT "\tbreak from expander scan: " \
6758 "ioc_status(0x%04x), loginfo(0x%08x)\n",
6759 ioc->name, ioc_status,
6760 le32_to_cpu(mpi_reply.IOCLogInfo));
6761 break;
6762 }
6763 handle = le16_to_cpu(expander_pg0.DevHandle);
6764 spin_lock_irqsave(&ioc->sas_node_lock, flags);
6765 expander_device = mpt3sas_scsih_expander_find_by_sas_address(
6766 ioc, le64_to_cpu(expander_pg0.SASAddress));
6767 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
6768 if (expander_device)
6769 _scsih_refresh_expander_links(ioc, expander_device,
6770 handle);
6771 else {
6772 pr_info(MPT3SAS_FMT "\tBEFORE adding expander: " \
6773 "handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name,
6774 handle, (unsigned long long)
6775 le64_to_cpu(expander_pg0.SASAddress));
6776 _scsih_expander_add(ioc, handle);
6777 pr_info(MPT3SAS_FMT "\tAFTER adding expander: " \
6778 "handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name,
6779 handle, (unsigned long long)
6780 le64_to_cpu(expander_pg0.SASAddress));
6781 }
6782 }
6783
6784 pr_info(MPT3SAS_FMT "\tscan devices: expanders complete\n",
6785 ioc->name);
6786
6787 if (!ioc->ir_firmware)
6788 goto skip_to_sas;
6789
6790 pr_info(MPT3SAS_FMT "\tscan devices: phys disk start\n", ioc->name);
6791
6792 /* phys disk */
6793 phys_disk_num = 0xFF;
6794 while (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
6795 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
6796 phys_disk_num))) {
6797 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6798 MPI2_IOCSTATUS_MASK;
f92363d1
SR		 6799 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6800 pr_info(MPT3SAS_FMT "\tbreak from phys disk scan: "\
6801 "ioc_status(0x%04x), loginfo(0x%08x)\n",
6802 ioc->name, ioc_status,
6803 le32_to_cpu(mpi_reply.IOCLogInfo));
6804 break;
6805 }
6806 phys_disk_num = pd_pg0.PhysDiskNum;
6807 handle = le16_to_cpu(pd_pg0.DevHandle);
6808 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6809 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
6810 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6811 if (sas_device)
6812 continue;
6813 if (mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
6814 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
6815 handle) != 0)
6816 continue;
6817 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6818 MPI2_IOCSTATUS_MASK;
6819 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6820 pr_info(MPT3SAS_FMT "\tbreak from phys disk scan " \
6821 "ioc_status(0x%04x), loginfo(0x%08x)\n",
6822 ioc->name, ioc_status,
6823 le32_to_cpu(mpi_reply.IOCLogInfo));
6824 break;
6825 }
6826 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
6827 if (!_scsih_get_sas_address(ioc, parent_handle,
6828 &sas_address)) {
6829 pr_info(MPT3SAS_FMT "\tBEFORE adding phys disk: " \
6830 " handle (0x%04x), sas_addr(0x%016llx)\n",
6831 ioc->name, handle, (unsigned long long)
6832 le64_to_cpu(sas_device_pg0.SASAddress));
6833 mpt3sas_transport_update_links(ioc, sas_address,
6834 handle, sas_device_pg0.PhyNum,
6835 MPI2_SAS_NEG_LINK_RATE_1_5);
6836 set_bit(handle, ioc->pd_handles);
6837 retry_count = 0;
6838 /* This will retry adding the end device.
6839 * _scsih_add_device() will decide on retries and
6840 * return "1" when it should be retried
6841 */
6842 while (_scsih_add_device(ioc, handle, retry_count++,
6843 1)) {
6844 ssleep(1);
6845 }
6846 pr_info(MPT3SAS_FMT "\tAFTER adding phys disk: " \
6847 " handle (0x%04x), sas_addr(0x%016llx)\n",
6848 ioc->name, handle, (unsigned long long)
6849 le64_to_cpu(sas_device_pg0.SASAddress));
6850 }
6851 }
6852
6853 pr_info(MPT3SAS_FMT "\tscan devices: phys disk complete\n",
6854 ioc->name);
6855
6856 pr_info(MPT3SAS_FMT "\tscan devices: volumes start\n", ioc->name);
6857
6858 /* volumes */
6859 handle = 0xFFFF;
6860 while (!(mpt3sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
6861 &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
6862 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6863 MPI2_IOCSTATUS_MASK;
f92363d1
SR		 6864 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6865 pr_info(MPT3SAS_FMT "\tbreak from volume scan: " \
6866 "ioc_status(0x%04x), loginfo(0x%08x)\n",
6867 ioc->name, ioc_status,
6868 le32_to_cpu(mpi_reply.IOCLogInfo));
6869 break;
6870 }
6871 handle = le16_to_cpu(volume_pg1.DevHandle);
6872 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6873 raid_device = _scsih_raid_device_find_by_wwid(ioc,
6874 le64_to_cpu(volume_pg1.WWID));
6875 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6876 if (raid_device)
6877 continue;
6878 if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
6879 &volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
6880 sizeof(Mpi2RaidVolPage0_t)))
6881 continue;
6882 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6883 MPI2_IOCSTATUS_MASK;
6884 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6885 pr_info(MPT3SAS_FMT "\tbreak from volume scan: " \
6886 "ioc_status(0x%04x), loginfo(0x%08x)\n",
6887 ioc->name, ioc_status,
6888 le32_to_cpu(mpi_reply.IOCLogInfo));
6889 break;
6890 }
6891 if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
6892 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
6893 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED) {
6894 memset(&element, 0, sizeof(Mpi2EventIrConfigElement_t));
6895 element.ReasonCode = MPI2_EVENT_IR_CHANGE_RC_ADDED;
6896 element.VolDevHandle = volume_pg1.DevHandle;
6897 pr_info(MPT3SAS_FMT
6898 "\tBEFORE adding volume: handle (0x%04x)\n",
6899 ioc->name, volume_pg1.DevHandle);
6900 _scsih_sas_volume_add(ioc, &element);
6901 pr_info(MPT3SAS_FMT
6902 "\tAFTER adding volume: handle (0x%04x)\n",
6903 ioc->name, volume_pg1.DevHandle);
6904 }
6905 }
6906
6907 pr_info(MPT3SAS_FMT "\tscan devices: volumes complete\n",
6908 ioc->name);
6909
6910 skip_to_sas:
6911
6912 pr_info(MPT3SAS_FMT "\tscan devices: end devices start\n",
6913 ioc->name);
6914
6915 /* sas devices */
6916 handle = 0xFFFF;
6917 while (!(mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
6918 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
6919 handle))) {
6920 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6921 MPI2_IOCSTATUS_MASK;
f92363d1
SR		 6922 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6923 pr_info(MPT3SAS_FMT "\tbreak from end device scan:"\
6924 " ioc_status(0x%04x), loginfo(0x%08x)\n",
6925 ioc->name, ioc_status,
6926 le32_to_cpu(mpi_reply.IOCLogInfo));
6927 break;
6928 }
6929 handle = le16_to_cpu(sas_device_pg0.DevHandle);
6930 if (!(_scsih_is_end_device(
6931 le32_to_cpu(sas_device_pg0.DeviceInfo))))
6932 continue;
6933 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6934 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
6935 le64_to_cpu(sas_device_pg0.SASAddress));
6936 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6937 if (sas_device)
6938 continue;
6939 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
6940 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address)) {
6941 pr_info(MPT3SAS_FMT "\tBEFORE adding end device: " \
6942 "handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name,
6943 handle, (unsigned long long)
6944 le64_to_cpu(sas_device_pg0.SASAddress));
6945 mpt3sas_transport_update_links(ioc, sas_address, handle,
6946 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
6947 retry_count = 0;
6948 /* This will retry adding the end device.
6949 * _scsih_add_device() will decide on retries and
6950 * return "1" when it should be retried
6951 */
6952 while (_scsih_add_device(ioc, handle, retry_count++,
6953 0)) {
6954 ssleep(1);
6955 }
6956 pr_info(MPT3SAS_FMT "\tAFTER adding end device: " \
6957 "handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name,
6958 handle, (unsigned long long)
6959 le64_to_cpu(sas_device_pg0.SASAddress));
6960 }
6961 }
6962 pr_info(MPT3SAS_FMT "\tscan devices: end devices complete\n",
6963 ioc->name);
6964
6965 pr_info(MPT3SAS_FMT "scan devices: complete\n", ioc->name);
6966}
6967/**
6968 * mpt3sas_scsih_reset_handler - reset callback handler (for scsih)
6969 * @ioc: per adapter object
6970 * @reset_phase: phase
6971 *
6972 * The handler for doing any required cleanup or initialization.
6973 *
6974 * The reset phase can be MPT3_IOC_PRE_RESET, MPT3_IOC_AFTER_RESET,
6975 * MPT3_IOC_DONE_RESET
6976 *
6977 * Return nothing.
6978 */
6979void
6980mpt3sas_scsih_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase)
6981{
6982 switch (reset_phase) {
6983 case MPT3_IOC_PRE_RESET:
6984 dtmprintk(ioc, pr_info(MPT3SAS_FMT
6985 "%s: MPT3_IOC_PRE_RESET\n", ioc->name, __func__));
6986 break;
6987 case MPT3_IOC_AFTER_RESET:
6988 dtmprintk(ioc, pr_info(MPT3SAS_FMT
6989 "%s: MPT3_IOC_AFTER_RESET\n", ioc->name, __func__));
6990 if (ioc->scsih_cmds.status & MPT3_CMD_PENDING) {
6991 ioc->scsih_cmds.status |= MPT3_CMD_RESET;
6992 mpt3sas_base_free_smid(ioc, ioc->scsih_cmds.smid);
6993 complete(&ioc->scsih_cmds.done);
6994 }
6995 if (ioc->tm_cmds.status & MPT3_CMD_PENDING) {
6996 ioc->tm_cmds.status |= MPT3_CMD_RESET;
6997 mpt3sas_base_free_smid(ioc, ioc->tm_cmds.smid);
6998 complete(&ioc->tm_cmds.done);
6999 }
7000
7001 _scsih_fw_event_cleanup_queue(ioc);
7002 _scsih_flush_running_cmds(ioc);
7003 break;
7004 case MPT3_IOC_DONE_RESET:
7005 dtmprintk(ioc, pr_info(MPT3SAS_FMT
7006 "%s: MPT3_IOC_DONE_RESET\n", ioc->name, __func__));
7007 if ((!ioc->is_driver_loading) && !(disable_discovery > 0 &&
7008 !ioc->sas_hba.num_phys)) {
7009 _scsih_prep_device_scan(ioc);
7010 _scsih_search_responding_sas_devices(ioc);
7011 _scsih_search_responding_raid_devices(ioc);
7012 _scsih_search_responding_expanders(ioc);
7013 _scsih_error_recovery_delete_devices(ioc);
7014 }
7015 break;
7016 }
7017}
7018
7019/**
7020 * _mpt3sas_fw_work - delayed task for processing firmware events
7021 * @ioc: per adapter object
7022 * @fw_event: The fw_event_work object
7023 * Context: user.
7024 *
7025 * Return nothing.
7026 */
7027static void
7028_mpt3sas_fw_work(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
7029{
7030 /* the queue is being flushed so ignore this event */
7031 if (ioc->remove_host || fw_event->cancel_pending_work ||
7032 ioc->pci_error_recovery) {
7033 _scsih_fw_event_free(ioc, fw_event);
7034 return;
7035 }
7036
7037 switch (fw_event->event) {
7038 case MPT3SAS_PROCESS_TRIGGER_DIAG:
7039 mpt3sas_process_trigger_data(ioc, fw_event->event_data);
7040 break;
7041 case MPT3SAS_REMOVE_UNRESPONDING_DEVICES:
7042 while (scsi_host_in_recovery(ioc->shost) || ioc->shost_recovery)
7043 ssleep(1);
7044 _scsih_remove_unresponding_sas_devices(ioc);
7045 _scsih_scan_for_devices_after_reset(ioc);
7046 break;
7047 case MPT3SAS_PORT_ENABLE_COMPLETE:
7048 ioc->start_scan = 0;
7049 if (missing_delay[0] != -1 && missing_delay[1] != -1)
7050 mpt3sas_base_update_missing_delay(ioc, missing_delay[0],
7051 missing_delay[1]);
7052 dewtprintk(ioc, pr_info(MPT3SAS_FMT
7053 "port enable: complete from worker thread\n",
7054 ioc->name));
7055 break;
7056 case MPT3SAS_TURN_ON_FAULT_LED:
7057 _scsih_turn_on_fault_led(ioc, fw_event->device_handle);
7058 break;
7059 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
7060 _scsih_sas_topology_change_event(ioc, fw_event);
7061 break;
7062 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
7063 _scsih_sas_device_status_change_event(ioc, fw_event);
7064 break;
7065 case MPI2_EVENT_SAS_DISCOVERY:
7066 _scsih_sas_discovery_event(ioc, fw_event);
7067 break;
7068 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
7069 _scsih_sas_broadcast_primitive_event(ioc, fw_event);
7070 break;
7071 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
7072 _scsih_sas_enclosure_dev_status_change_event(ioc,
7073 fw_event);
7074 break;
7075 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
7076 _scsih_sas_ir_config_change_event(ioc, fw_event);
7077 break;
7078 case MPI2_EVENT_IR_VOLUME:
7079 _scsih_sas_ir_volume_event(ioc, fw_event);
7080 break;
7081 case MPI2_EVENT_IR_PHYSICAL_DISK:
7082 _scsih_sas_ir_physical_disk_event(ioc, fw_event);
7083 break;
7084 case MPI2_EVENT_IR_OPERATION_STATUS:
7085 _scsih_sas_ir_operation_status_event(ioc, fw_event);
7086 break;
7087 }
7088 _scsih_fw_event_free(ioc, fw_event);
7089}
7090
7091/**
7092 * _firmware_event_work
7093 * @ioc: per adapter object
7094 * @work: The fw_event_work object
7095 * Context: user.
7096 *
7097 * wrappers for the work thread handling firmware events
7098 *
7099 * Return nothing.
7100 */
7101
7102static void
7103_firmware_event_work(struct work_struct *work)
7104{
7105 struct fw_event_work *fw_event = container_of(work,
7106 struct fw_event_work, work);
7107
7108 _mpt3sas_fw_work(fw_event->ioc, fw_event);
7109}
7110
7111/**
7112 * mpt3sas_scsih_event_callback - firmware event handler (called at ISR time)
7113 * @ioc: per adapter object
7114 * @msix_index: MSIX table index supplied by the OS
7115 * @reply: reply message frame(lower 32bit addr)
7116 * Context: interrupt.
7117 *
7118 * This function merely adds a new work task into ioc->firmware_event_thread.
7119 * The tasks are worked from _firmware_event_work in user context.
7120 *
7121 * Return 1 meaning mf should be freed from _base_interrupt
7122 * 0 means the mf is freed from this function.
7123 */
7124u8
7125mpt3sas_scsih_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
7126 u32 reply)
7127{
7128 struct fw_event_work *fw_event;
7129 Mpi2EventNotificationReply_t *mpi_reply;
7130 u16 event;
7131 u16 sz;
7132
7133 /* events turned off due to host reset or driver unloading */
7134 if (ioc->remove_host || ioc->pci_error_recovery)
7135 return 1;
7136
7137 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
7138
7139 if (unlikely(!mpi_reply)) {
7140 pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n",
7141 ioc->name, __FILE__, __LINE__, __func__);
7142 return 1;
7143 }
7144
7145 event = le16_to_cpu(mpi_reply->Event);
7146
7147 if (event != MPI2_EVENT_LOG_ENTRY_ADDED)
7148 mpt3sas_trigger_event(ioc, event, 0);
7149
7150 switch (event) {
7151 /* handle these */
7152 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
7153 {
7154 Mpi2EventDataSasBroadcastPrimitive_t *baen_data =
7155 (Mpi2EventDataSasBroadcastPrimitive_t *)
7156 mpi_reply->EventData;
7157
7158 if (baen_data->Primitive !=
7159 MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT)
7160 return 1;
7161
7162 if (ioc->broadcast_aen_busy) {
7163 ioc->broadcast_aen_pending++;
7164 return 1;
7165 } else
7166 ioc->broadcast_aen_busy = 1;
7167 break;
7168 }
7169
7170 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
7171 _scsih_check_topo_delete_events(ioc,
7172 (Mpi2EventDataSasTopologyChangeList_t *)
7173 mpi_reply->EventData);
7174 break;
7175 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
7176 _scsih_check_ir_config_unhide_events(ioc,
7177 (Mpi2EventDataIrConfigChangeList_t *)
7178 mpi_reply->EventData);
7179 break;
7180 case MPI2_EVENT_IR_VOLUME:
7181 _scsih_check_volume_delete_events(ioc,
7182 (Mpi2EventDataIrVolume_t *)
7183 mpi_reply->EventData);
7184 break;
7185
7186 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
7187 case MPI2_EVENT_IR_OPERATION_STATUS:
7188 case MPI2_EVENT_SAS_DISCOVERY:
7189 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
7190 case MPI2_EVENT_IR_PHYSICAL_DISK:
7191 break;
7192
7193 default: /* ignore the rest */
7194 return 1;
7195 }
7196
7197 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
7198 if (!fw_event) {
7199 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
7200 ioc->name, __FILE__, __LINE__, __func__);
7201 return 1;
7202 }
7203 sz = le16_to_cpu(mpi_reply->EventDataLength) * 4;
7204 fw_event->event_data = kzalloc(sz, GFP_ATOMIC);
7205 if (!fw_event->event_data) {
7206 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
7207 ioc->name, __FILE__, __LINE__, __func__);
7208 kfree(fw_event);
7209 return 1;
7210 }
7211
7212 memcpy(fw_event->event_data, mpi_reply->EventData, sz);
7213 fw_event->ioc = ioc;
7214 fw_event->VF_ID = mpi_reply->VF_ID;
7215 fw_event->VP_ID = mpi_reply->VP_ID;
7216 fw_event->event = event;
7217 _scsih_fw_event_add(ioc, fw_event);
7218 return 1;
7219}
7220
7221/* shost template */
7222static struct scsi_host_template scsih_driver_template = {
7223 .module = THIS_MODULE,
7224 .name = "Fusion MPT SAS Host",
7225 .proc_name = MPT3SAS_DRIVER_NAME,
7226 .queuecommand = _scsih_qcmd,
7227 .target_alloc = _scsih_target_alloc,
7228 .slave_alloc = _scsih_slave_alloc,
7229 .slave_configure = _scsih_slave_configure,
7230 .target_destroy = _scsih_target_destroy,
7231 .slave_destroy = _scsih_slave_destroy,
7232 .scan_finished = _scsih_scan_finished,
7233 .scan_start = _scsih_scan_start,
7234 .change_queue_depth = _scsih_change_queue_depth,
7235 .change_queue_type = _scsih_change_queue_type,
7236 .eh_abort_handler = _scsih_abort,
7237 .eh_device_reset_handler = _scsih_dev_reset,
7238 .eh_target_reset_handler = _scsih_target_reset,
7239 .eh_host_reset_handler = _scsih_host_reset,
7240 .bios_param = _scsih_bios_param,
7241 .can_queue = 1,
7242 .this_id = -1,
7243 .sg_tablesize = MPT3SAS_SG_DEPTH,
7244 .max_sectors = 32767,
7245 .cmd_per_lun = 7,
7246 .use_clustering = ENABLE_CLUSTERING,
7247 .shost_attrs = mpt3sas_host_attrs,
7248 .sdev_attrs = mpt3sas_dev_attrs,
7249};
7250
7251/**
7252 * _scsih_expander_node_remove - removing expander device from list.
7253 * @ioc: per adapter object
7254 * @sas_expander: the sas_device object
7255 * Context: Calling function should acquire ioc->sas_node_lock.
7256 *
7257 * Removing object and freeing associated memory from the
7258 * ioc->sas_expander_list.
7259 *
7260 * Return nothing.
7261 */
7262static void
7263_scsih_expander_node_remove(struct MPT3SAS_ADAPTER *ioc,
7264 struct _sas_node *sas_expander)
7265{
7266 struct _sas_port *mpt3sas_port, *next;
7267
7268 /* remove sibling ports attached to this expander */
7269 list_for_each_entry_safe(mpt3sas_port, next,
7270 &sas_expander->sas_port_list, port_list) {
7271 if (ioc->shost_recovery)
7272 return;
7273 if (mpt3sas_port->remote_identify.device_type ==
7274 SAS_END_DEVICE)
7275 mpt3sas_device_remove_by_sas_address(ioc,
7276 mpt3sas_port->remote_identify.sas_address);
7277 else if (mpt3sas_port->remote_identify.device_type ==
7278 SAS_EDGE_EXPANDER_DEVICE ||
7279 mpt3sas_port->remote_identify.device_type ==
7280 SAS_FANOUT_EXPANDER_DEVICE)
7281 mpt3sas_expander_remove(ioc,
7282 mpt3sas_port->remote_identify.sas_address);
7283 }
7284
7285 mpt3sas_transport_port_remove(ioc, sas_expander->sas_address,
7286 sas_expander->sas_address_parent);
7287
7288 pr_info(MPT3SAS_FMT
7289 "expander_remove: handle(0x%04x), sas_addr(0x%016llx)\n",
7290 ioc->name,
7291 sas_expander->handle, (unsigned long long)
7292 sas_expander->sas_address);
7293
7294 kfree(sas_expander->phy);
7295 kfree(sas_expander);
7296}
7297
7298/**
7299 * _scsih_ir_shutdown - IR shutdown notification
7300 * @ioc: per adapter object
7301 *
7302 * Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
7303 * the host system is shutting down.
7304 *
7305 * Return nothing.
7306 */
7307static void
7308_scsih_ir_shutdown(struct MPT3SAS_ADAPTER *ioc)
7309{
7310 Mpi2RaidActionRequest_t *mpi_request;
7311 Mpi2RaidActionReply_t *mpi_reply;
7312 u16 smid;
7313
7314 /* is IR firmware build loaded ? */
7315 if (!ioc->ir_firmware)
7316 return;
7317
7318 /* are there any volumes ? */
7319 if (list_empty(&ioc->raid_device_list))
7320 return;
7321
7322 mutex_lock(&ioc->scsih_cmds.mutex);
7323
7324 if (ioc->scsih_cmds.status != MPT3_CMD_NOT_USED) {
7325 pr_err(MPT3SAS_FMT "%s: scsih_cmd in use\n",
7326 ioc->name, __func__);
7327 goto out;
7328 }
7329 ioc->scsih_cmds.status = MPT3_CMD_PENDING;
7330
7331 smid = mpt3sas_base_get_smid(ioc, ioc->scsih_cb_idx);
7332 if (!smid) {
7333 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
7334 ioc->name, __func__);
7335 ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
7336 goto out;
7337 }
7338
7339 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
7340 ioc->scsih_cmds.smid = smid;
7341 memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t));
7342
7343 mpi_request->Function = MPI2_FUNCTION_RAID_ACTION;
7344 mpi_request->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;
7345
7346 pr_info(MPT3SAS_FMT "IR shutdown (sending)\n", ioc->name);
7347 init_completion(&ioc->scsih_cmds.done);
7348 mpt3sas_base_put_smid_default(ioc, smid);
7349 wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
7350
7351 if (!(ioc->scsih_cmds.status & MPT3_CMD_COMPLETE)) {
7352 pr_err(MPT3SAS_FMT "%s: timeout\n",
7353 ioc->name, __func__);
7354 goto out;
7355 }
7356
7357 if (ioc->scsih_cmds.status & MPT3_CMD_REPLY_VALID) {
7358 mpi_reply = ioc->scsih_cmds.reply;
7359 pr_info(MPT3SAS_FMT
7360 "IR shutdown (complete): ioc_status(0x%04x), loginfo(0x%08x)\n",
7361 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
7362 le32_to_cpu(mpi_reply->IOCLogInfo));
7363 }
7364
7365 out:
7366 ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
7367 mutex_unlock(&ioc->scsih_cmds.mutex);
7368}
7369
7370/**
7371 * _scsih_remove - detach and remove add host
7372 * @pdev: PCI device struct
7373 *
7374 * Routine called when unloading the driver.
7375 * Return nothing.
7376 */
6f039790 7377static void _scsih_remove(struct pci_dev *pdev)
f92363d1
SR		 7378{
7379 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7380 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7381 struct _sas_port *mpt3sas_port, *next_port;
7382 struct _raid_device *raid_device, *next;
7383 struct MPT3SAS_TARGET *sas_target_priv_data;
7384 struct workqueue_struct *wq;
7385 unsigned long flags;
7386
7387 ioc->remove_host = 1;
7388 _scsih_fw_event_cleanup_queue(ioc);
7389
7390 spin_lock_irqsave(&ioc->fw_event_lock, flags);
7391 wq = ioc->firmware_event_thread;
7392 ioc->firmware_event_thread = NULL;
7393 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
7394 if (wq)
7395 destroy_workqueue(wq);
7396
7397 /* release all the volumes */
7398 _scsih_ir_shutdown(ioc);
7399 list_for_each_entry_safe(raid_device, next, &ioc->raid_device_list,
7400 list) {
7401 if (raid_device->starget) {
7402 sas_target_priv_data =
7403 raid_device->starget->hostdata;
7404 sas_target_priv_data->deleted = 1;
7405 scsi_remove_target(&raid_device->starget->dev);
7406 }
7407 pr_info(MPT3SAS_FMT "removing handle(0x%04x), wwid(0x%016llx)\n",
7408 ioc->name, raid_device->handle,
7409 (unsigned long long) raid_device->wwid);
7410 _scsih_raid_device_remove(ioc, raid_device);
7411 }
7412
7413 /* free ports attached to the sas_host */
7414 list_for_each_entry_safe(mpt3sas_port, next_port,
7415 &ioc->sas_hba.sas_port_list, port_list) {
7416 if (mpt3sas_port->remote_identify.device_type ==
7417 SAS_END_DEVICE)
7418 mpt3sas_device_remove_by_sas_address(ioc,
7419 mpt3sas_port->remote_identify.sas_address);
7420 else if (mpt3sas_port->remote_identify.device_type ==
7421 SAS_EDGE_EXPANDER_DEVICE ||
7422 mpt3sas_port->remote_identify.device_type ==
7423 SAS_FANOUT_EXPANDER_DEVICE)
7424 mpt3sas_expander_remove(ioc,
7425 mpt3sas_port->remote_identify.sas_address);
7426 }
7427
7428 /* free phys attached to the sas_host */
7429 if (ioc->sas_hba.num_phys) {
7430 kfree(ioc->sas_hba.phy);
7431 ioc->sas_hba.phy = NULL;
7432 ioc->sas_hba.num_phys = 0;
7433 }
7434
7435 sas_remove_host(shost);
7436 mpt3sas_base_detach(ioc);
7437 list_del(&ioc->list);
7438 scsi_remove_host(shost);
7439 scsi_host_put(shost);
7440}
7441
7442/**
7443 * _scsih_shutdown - routine call during system shutdown
7444 * @pdev: PCI device struct
7445 *
7446 * Return nothing.
7447 */
7448static void
7449_scsih_shutdown(struct pci_dev *pdev)
7450{
7451 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7452 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7453 struct workqueue_struct *wq;
7454 unsigned long flags;
7455
7456 ioc->remove_host = 1;
7457 _scsih_fw_event_cleanup_queue(ioc);
7458
7459 spin_lock_irqsave(&ioc->fw_event_lock, flags);
7460 wq = ioc->firmware_event_thread;
7461 ioc->firmware_event_thread = NULL;
7462 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
7463 if (wq)
7464 destroy_workqueue(wq);
7465
7466 _scsih_ir_shutdown(ioc);
7467 mpt3sas_base_detach(ioc);
7468}
7469
7470
7471/**
7472 * _scsih_probe_boot_devices - reports 1st device
7473 * @ioc: per adapter object
7474 *
7475 * If specified in bios page 2, this routine reports the 1st
7476 * device scsi-ml or sas transport for persistent boot device
7477 * purposes. Please refer to function _scsih_determine_boot_device()
7478 */
7479static void
7480_scsih_probe_boot_devices(struct MPT3SAS_ADAPTER *ioc)
7481{
7482 u8 is_raid;
7483 void *device;
7484 struct _sas_device *sas_device;
7485 struct _raid_device *raid_device;
7486 u16 handle;
7487 u64 sas_address_parent;
7488 u64 sas_address;
7489 unsigned long flags;
7490 int rc;
7491
7492 /* no Bios, return immediately */
7493 if (!ioc->bios_pg3.BiosVersion)
7494 return;
7495
7496 device = NULL;
7497 is_raid = 0;
7498 if (ioc->req_boot_device.device) {
7499 device = ioc->req_boot_device.device;
7500 is_raid = ioc->req_boot_device.is_raid;
7501 } else if (ioc->req_alt_boot_device.device) {
7502 device = ioc->req_alt_boot_device.device;
7503 is_raid = ioc->req_alt_boot_device.is_raid;
7504 } else if (ioc->current_boot_device.device) {
7505 device = ioc->current_boot_device.device;
7506 is_raid = ioc->current_boot_device.is_raid;
7507 }
7508
7509 if (!device)
7510 return;
7511
7512 if (is_raid) {
7513 raid_device = device;
7514 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
7515 raid_device->id, 0);
7516 if (rc)
7517 _scsih_raid_device_remove(ioc, raid_device);
7518 } else {
7519 spin_lock_irqsave(&ioc->sas_device_lock, flags);
7520 sas_device = device;
7521 handle = sas_device->handle;
7522 sas_address_parent = sas_device->sas_address_parent;
7523 sas_address = sas_device->sas_address;
7524 list_move_tail(&sas_device->list, &ioc->sas_device_list);
7525 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
7526
7527 if (!mpt3sas_transport_port_add(ioc, handle,
7528 sas_address_parent)) {
7529 _scsih_sas_device_remove(ioc, sas_device);
7530 } else if (!sas_device->starget) {
f5edbe77
SR		 7531 if (!ioc->is_driver_loading) {
7532 mpt3sas_transport_port_remove(ioc,
7533 sas_address,
f92363d1 7534 sas_address_parent);
f5edbe77
SR		 7535 _scsih_sas_device_remove(ioc, sas_device);
7536 }
f92363d1
SR		 7537 }
7538 }
7539}
7540
7541/**
7542 * _scsih_probe_raid - reporting raid volumes to scsi-ml
7543 * @ioc: per adapter object
7544 *
7545 * Called during initial loading of the driver.
7546 */
7547static void
7548_scsih_probe_raid(struct MPT3SAS_ADAPTER *ioc)
7549{
7550 struct _raid_device *raid_device, *raid_next;
7551 int rc;
7552
7553 list_for_each_entry_safe(raid_device, raid_next,
7554 &ioc->raid_device_list, list) {
7555 if (raid_device->starget)
7556 continue;
7557 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
7558 raid_device->id, 0);
7559 if (rc)
7560 _scsih_raid_device_remove(ioc, raid_device);
7561 }
7562}
7563
7564/**
7565 * _scsih_probe_sas - reporting sas devices to sas transport
7566 * @ioc: per adapter object
7567 *
7568 * Called during initial loading of the driver.
7569 */
7570static void
7571_scsih_probe_sas(struct MPT3SAS_ADAPTER *ioc)
7572{
7573 struct _sas_device *sas_device, *next;
7574 unsigned long flags;
7575
7576 /* SAS Device List */
7577 list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list,
7578 list) {
7579
7580 if (!mpt3sas_transport_port_add(ioc, sas_device->handle,
7581 sas_device->sas_address_parent)) {
7582 list_del(&sas_device->list);
7583 kfree(sas_device);
7584 continue;
7585 } else if (!sas_device->starget) {
7586 /*
7587 * When asyn scanning is enabled, its not possible to
7588 * remove devices while scanning is turned on due to an
7589 * oops in scsi_sysfs_add_sdev()->add_device()->
7590 * sysfs_addrm_start()
7591 */
f5edbe77 7592 if (!ioc->is_driver_loading) {
f92363d1
SR		 7593 mpt3sas_transport_port_remove(ioc,
7594 sas_device->sas_address,
7595 sas_device->sas_address_parent);
f5edbe77
SR		 7596 list_del(&sas_device->list);
7597 kfree(sas_device);
7598 continue;
7599 }
f92363d1
SR		 7600 }
7601
7602 spin_lock_irqsave(&ioc->sas_device_lock, flags);
7603 list_move_tail(&sas_device->list, &ioc->sas_device_list);
7604 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
7605 }
7606}
7607
7608/**
7609 * _scsih_probe_devices - probing for devices
7610 * @ioc: per adapter object
7611 *
7612 * Called during initial loading of the driver.
7613 */
7614static void
7615_scsih_probe_devices(struct MPT3SAS_ADAPTER *ioc)
7616{
7617 u16 volume_mapping_flags;
7618
7619 if (!(ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR))
7620 return; /* return when IOC doesn't support initiator mode */
7621
7622 _scsih_probe_boot_devices(ioc);
7623
7624 if (ioc->ir_firmware) {
7625 volume_mapping_flags =
7626 le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) &
7627 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
7628 if (volume_mapping_flags ==
7629 MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) {
7630 _scsih_probe_raid(ioc);
7631 _scsih_probe_sas(ioc);
7632 } else {
7633 _scsih_probe_sas(ioc);
7634 _scsih_probe_raid(ioc);
7635 }
7636 } else
7637 _scsih_probe_sas(ioc);
7638}
7639
7640/**
7641 * _scsih_scan_start - scsi lld callback for .scan_start
7642 * @shost: SCSI host pointer
7643 *
7644 * The shost has the ability to discover targets on its own instead
7645 * of scanning the entire bus. In our implemention, we will kick off
7646 * firmware discovery.
7647 */
7648static void
7649_scsih_scan_start(struct Scsi_Host *shost)
7650{
7651 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7652 int rc;
7653 if (diag_buffer_enable != -1 && diag_buffer_enable != 0)
7654 mpt3sas_enable_diag_buffer(ioc, diag_buffer_enable);
7655
7656 if (disable_discovery > 0)
7657 return;
7658
7659 ioc->start_scan = 1;
7660 rc = mpt3sas_port_enable(ioc);
7661
7662 if (rc != 0)
7663 pr_info(MPT3SAS_FMT "port enable: FAILED\n", ioc->name);
7664}
7665
7666/**
7667 * _scsih_scan_finished - scsi lld callback for .scan_finished
7668 * @shost: SCSI host pointer
7669 * @time: elapsed time of the scan in jiffies
7670 *
7671 * This function will be called periodicallyn until it returns 1 with the
7672 * scsi_host and the elapsed time of the scan in jiffies. In our implemention,
7673 * we wait for firmware discovery to complete, then return 1.
7674 */
7675static int
7676_scsih_scan_finished(struct Scsi_Host *shost, unsigned long time)
7677{
7678 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7679
7680 if (disable_discovery > 0) {
7681 ioc->is_driver_loading = 0;
7682 ioc->wait_for_discovery_to_complete = 0;
7683 return 1;
7684 }
7685
7686 if (time >= (300 * HZ)) {
7687 ioc->base_cmds.status = MPT3_CMD_NOT_USED;
7688 pr_info(MPT3SAS_FMT
7689 "port enable: FAILED with timeout (timeout=300s)\n",
7690 ioc->name);
7691 ioc->is_driver_loading = 0;
7692 return 1;
7693 }
7694
7695 if (ioc->start_scan)
7696 return 0;
7697
7698 if (ioc->start_scan_failed) {
7699 pr_info(MPT3SAS_FMT
7700 "port enable: FAILED with (ioc_status=0x%08x)\n",
7701 ioc->name, ioc->start_scan_failed);
7702 ioc->is_driver_loading = 0;
7703 ioc->wait_for_discovery_to_complete = 0;
7704 ioc->remove_host = 1;
7705 return 1;
7706 }
7707
7708 pr_info(MPT3SAS_FMT "port enable: SUCCESS\n", ioc->name);
7709 ioc->base_cmds.status = MPT3_CMD_NOT_USED;
7710
7711 if (ioc->wait_for_discovery_to_complete) {
7712 ioc->wait_for_discovery_to_complete = 0;
7713 _scsih_probe_devices(ioc);
7714 }
7715 mpt3sas_base_start_watchdog(ioc);
7716 ioc->is_driver_loading = 0;
7717 return 1;
7718}
7719
7720/**
7721 * _scsih_probe - attach and add scsi host
7722 * @pdev: PCI device struct
7723 * @id: pci device id
7724 *
7725 * Returns 0 success, anything else error.
7726 */
7727static int
7728_scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
7729{
7730 struct MPT3SAS_ADAPTER *ioc;
7731 struct Scsi_Host *shost;
7732
7733 shost = scsi_host_alloc(&scsih_driver_template,
7734 sizeof(struct MPT3SAS_ADAPTER));
7735 if (!shost)
7736 return -ENODEV;
7737
7738 /* init local params */
7739 ioc = shost_priv(shost);
7740 memset(ioc, 0, sizeof(struct MPT3SAS_ADAPTER));
7741 INIT_LIST_HEAD(&ioc->list);
7742 list_add_tail(&ioc->list, &mpt3sas_ioc_list);
7743 ioc->shost = shost;
7744 ioc->id = mpt_ids++;
7745 sprintf(ioc->name, "%s%d", MPT3SAS_DRIVER_NAME, ioc->id);
7746 ioc->pdev = pdev;
7747 ioc->scsi_io_cb_idx = scsi_io_cb_idx;
7748 ioc->tm_cb_idx = tm_cb_idx;
7749 ioc->ctl_cb_idx = ctl_cb_idx;
7750 ioc->base_cb_idx = base_cb_idx;
7751 ioc->port_enable_cb_idx = port_enable_cb_idx;
7752 ioc->transport_cb_idx = transport_cb_idx;
7753 ioc->scsih_cb_idx = scsih_cb_idx;
7754 ioc->config_cb_idx = config_cb_idx;
7755 ioc->tm_tr_cb_idx = tm_tr_cb_idx;
7756 ioc->tm_tr_volume_cb_idx = tm_tr_volume_cb_idx;
7757 ioc->tm_sas_control_cb_idx = tm_sas_control_cb_idx;
7758 ioc->logging_level = logging_level;
7759 ioc->schedule_dead_ioc_flush_running_cmds = &_scsih_flush_running_cmds;
7760 /* misc semaphores and spin locks */
7761 mutex_init(&ioc->reset_in_progress_mutex);
7762 spin_lock_init(&ioc->ioc_reset_in_progress_lock);
7763 spin_lock_init(&ioc->scsi_lookup_lock);
7764 spin_lock_init(&ioc->sas_device_lock);
7765 spin_lock_init(&ioc->sas_node_lock);
7766 spin_lock_init(&ioc->fw_event_lock);
7767 spin_lock_init(&ioc->raid_device_lock);
7768 spin_lock_init(&ioc->diag_trigger_lock);
7769
7770 INIT_LIST_HEAD(&ioc->sas_device_list);
7771 INIT_LIST_HEAD(&ioc->sas_device_init_list);
7772 INIT_LIST_HEAD(&ioc->sas_expander_list);
7773 INIT_LIST_HEAD(&ioc->fw_event_list);
7774 INIT_LIST_HEAD(&ioc->raid_device_list);
7775 INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list);
7776 INIT_LIST_HEAD(&ioc->delayed_tr_list);
7777 INIT_LIST_HEAD(&ioc->delayed_tr_volume_list);
cf9bd21a 7778 INIT_LIST_HEAD(&ioc->reply_queue_list);
f92363d1
SR		 7779
7780 /* init shost parameters */
7781 shost->max_cmd_len = 32;
7782 shost->max_lun = max_lun;
7783 shost->transportt = mpt3sas_transport_template;
7784 shost->unique_id = ioc->id;
7785
7786 if (max_sectors != 0xFFFF) {
7787 if (max_sectors < 64) {
7788 shost->max_sectors = 64;
7789 pr_warn(MPT3SAS_FMT "Invalid value %d passed " \
7790 "for max_sectors, range is 64 to 32767. Assigning "
7791 "value of 64.\n", ioc->name, max_sectors);
7792 } else if (max_sectors > 32767) {
7793 shost->max_sectors = 32767;
7794 pr_warn(MPT3SAS_FMT "Invalid value %d passed " \
7795 "for max_sectors, range is 64 to 32767. Assigning "
7796 "default value of 32767.\n", ioc->name,
7797 max_sectors);
7798 } else {
7799 shost->max_sectors = max_sectors & 0xFFFE;
7800 pr_info(MPT3SAS_FMT
7801 "The max_sectors value is set to %d\n",
7802 ioc->name, shost->max_sectors);
7803 }
7804 }
7805
7806 if ((scsi_add_host(shost, &pdev->dev))) {
7807 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
7808 ioc->name, __FILE__, __LINE__, __func__);
7809 list_del(&ioc->list);
7810 goto out_add_shost_fail;
7811 }
7812
7813 /* register EEDP capabilities with SCSI layer */
7814 if (prot_mask > 0)
7815 scsi_host_set_prot(shost, prot_mask);
7816 else
7817 scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
7818 | SHOST_DIF_TYPE2_PROTECTION
7819 | SHOST_DIF_TYPE3_PROTECTION);
7820
7821 scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC);
7822
7823 /* event thread */
7824 snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
7825 "fw_event%d", ioc->id);
7826 ioc->firmware_event_thread = create_singlethread_workqueue(
7827 ioc->firmware_event_name);
7828 if (!ioc->firmware_event_thread) {
7829 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
7830 ioc->name, __FILE__, __LINE__, __func__);
7831 goto out_thread_fail;
7832 }
7833
7834 ioc->is_driver_loading = 1;
7835 if ((mpt3sas_base_attach(ioc))) {
7836 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
7837 ioc->name, __FILE__, __LINE__, __func__);
7838 goto out_attach_fail;
7839 }
7840 scsi_scan_host(shost);
7841 return 0;
7842
7843 out_attach_fail:
7844 destroy_workqueue(ioc->firmware_event_thread);
7845 out_thread_fail:
7846 list_del(&ioc->list);
7847 scsi_remove_host(shost);
7848 out_add_shost_fail:
7849 scsi_host_put(shost);
7850 return -ENODEV;
7851}
7852
7853#ifdef CONFIG_PM
7854/**
7855 * _scsih_suspend - power management suspend main entry point
7856 * @pdev: PCI device struct
7857 * @state: PM state change to (usually PCI_D3)
7858 *
7859 * Returns 0 success, anything else error.
7860 */
7861static int
7862_scsih_suspend(struct pci_dev *pdev, pm_message_t state)
7863{
7864 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7865 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7866 pci_power_t device_state;
7867
7868 mpt3sas_base_stop_watchdog(ioc);
7869 flush_scheduled_work();
7870 scsi_block_requests(shost);
7871 device_state = pci_choose_state(pdev, state);
7872 pr_info(MPT3SAS_FMT
7873 "pdev=0x%p, slot=%s, entering operating state [D%d]\n",
7874 ioc->name, pdev, pci_name(pdev), device_state);
7875
7876 pci_save_state(pdev);
7877 mpt3sas_base_free_resources(ioc);
7878 pci_set_power_state(pdev, device_state);
7879 return 0;
7880}
7881
7882/**
7883 * _scsih_resume - power management resume main entry point
7884 * @pdev: PCI device struct
7885 *
7886 * Returns 0 success, anything else error.
7887 */
7888static int
7889_scsih_resume(struct pci_dev *pdev)
7890{
7891 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7892 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7893 pci_power_t device_state = pdev->current_state;
7894 int r;
7895
7896 pr_info(MPT3SAS_FMT
7897 "pdev=0x%p, slot=%s, previous operating state [D%d]\n",
7898 ioc->name, pdev, pci_name(pdev), device_state);
7899
7900 pci_set_power_state(pdev, PCI_D0);
7901 pci_enable_wake(pdev, PCI_D0, 0);
7902 pci_restore_state(pdev);
7903 ioc->pdev = pdev;
7904 r = mpt3sas_base_map_resources(ioc);
7905 if (r)
7906 return r;
7907
7908 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, SOFT_RESET);
7909 scsi_unblock_requests(shost);
7910 mpt3sas_base_start_watchdog(ioc);
7911 return 0;
7912}
7913#endif /* CONFIG_PM */
7914
7915/**
7916 * _scsih_pci_error_detected - Called when a PCI error is detected.
7917 * @pdev: PCI device struct
7918 * @state: PCI channel state
7919 *
7920 * Description: Called when a PCI error is detected.
7921 *
7922 * Return value:
7923 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
7924 */
7925static pci_ers_result_t
7926_scsih_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
7927{
7928 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7929 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7930
7931 pr_info(MPT3SAS_FMT "PCI error: detected callback, state(%d)!!\n",
7932 ioc->name, state);
7933
7934 switch (state) {
7935 case pci_channel_io_normal:
7936 return PCI_ERS_RESULT_CAN_RECOVER;
7937 case pci_channel_io_frozen:
7938 /* Fatal error, prepare for slot reset */
7939 ioc->pci_error_recovery = 1;
7940 scsi_block_requests(ioc->shost);
7941 mpt3sas_base_stop_watchdog(ioc);
7942 mpt3sas_base_free_resources(ioc);
7943 return PCI_ERS_RESULT_NEED_RESET;
7944 case pci_channel_io_perm_failure:
7945 /* Permanent error, prepare for device removal */
7946 ioc->pci_error_recovery = 1;
7947 mpt3sas_base_stop_watchdog(ioc);
7948 _scsih_flush_running_cmds(ioc);
7949 return PCI_ERS_RESULT_DISCONNECT;
7950 }
7951 return PCI_ERS_RESULT_NEED_RESET;
7952}
7953
7954/**
7955 * _scsih_pci_slot_reset - Called when PCI slot has been reset.
7956 * @pdev: PCI device struct
7957 *
7958 * Description: This routine is called by the pci error recovery
7959 * code after the PCI slot has been reset, just before we
7960 * should resume normal operations.
7961 */
7962static pci_ers_result_t
7963_scsih_pci_slot_reset(struct pci_dev *pdev)
7964{
7965 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7966 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
7967 int rc;
7968
7969 pr_info(MPT3SAS_FMT "PCI error: slot reset callback!!\n",
7970 ioc->name);
7971
7972 ioc->pci_error_recovery = 0;
7973 ioc->pdev = pdev;
7974 pci_restore_state(pdev);
7975 rc = mpt3sas_base_map_resources(ioc);
7976 if (rc)
7977 return PCI_ERS_RESULT_DISCONNECT;
7978
7979 rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
7980 FORCE_BIG_HAMMER);
7981
7982 pr_warn(MPT3SAS_FMT "hard reset: %s\n", ioc->name,
7983 (rc == 0) ? "success" : "failed");
7984
7985 if (!rc)
7986 return PCI_ERS_RESULT_RECOVERED;
7987 else
7988 return PCI_ERS_RESULT_DISCONNECT;
7989}
7990
7991/**
7992 * _scsih_pci_resume() - resume normal ops after PCI reset
7993 * @pdev: pointer to PCI device
7994 *
7995 * Called when the error recovery driver tells us that its
7996 * OK to resume normal operation. Use completion to allow
7997 * halted scsi ops to resume.
7998 */
7999static void
8000_scsih_pci_resume(struct pci_dev *pdev)
8001{
8002 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8003 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
8004
8005 pr_info(MPT3SAS_FMT "PCI error: resume callback!!\n", ioc->name);
8006
8007 pci_cleanup_aer_uncorrect_error_status(pdev);
8008 mpt3sas_base_start_watchdog(ioc);
8009 scsi_unblock_requests(ioc->shost);
8010}
8011
8012/**
8013 * _scsih_pci_mmio_enabled - Enable MMIO and dump debug registers
8014 * @pdev: pointer to PCI device
8015 */
8016static pci_ers_result_t
8017_scsih_pci_mmio_enabled(struct pci_dev *pdev)
8018{
8019 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8020 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
8021
8022 pr_info(MPT3SAS_FMT "PCI error: mmio enabled callback!!\n",
8023 ioc->name);
8024
8025 /* TODO - dump whatever for debugging purposes */
8026
8027 /* Request a slot reset. */
8028 return PCI_ERS_RESULT_NEED_RESET;
8029}
8030
8031/* raid transport support */
8032static struct raid_function_template mpt3sas_raid_functions = {
8033 .cookie = &scsih_driver_template,
8034 .is_raid = _scsih_is_raid,
8035 .get_resync = _scsih_get_resync,
8036 .get_state = _scsih_get_state,
8037};
8038
8039static struct pci_error_handlers _scsih_err_handler = {
8040 .error_detected = _scsih_pci_error_detected,
8041 .mmio_enabled = _scsih_pci_mmio_enabled,
8042 .slot_reset = _scsih_pci_slot_reset,
8043 .resume = _scsih_pci_resume,
8044};
8045
8046static struct pci_driver scsih_driver = {
8047 .name = MPT3SAS_DRIVER_NAME,
8048 .id_table = scsih_pci_table,
8049 .probe = _scsih_probe,
6f039790 8050 .remove = _scsih_remove,
f92363d1
SR		 8051 .shutdown = _scsih_shutdown,
8052 .err_handler = &_scsih_err_handler,
8053#ifdef CONFIG_PM
8054 .suspend = _scsih_suspend,
8055 .resume = _scsih_resume,
8056#endif
8057};
8058
8059
8060/**
8061 * _scsih_init - main entry point for this driver.
8062 *
8063 * Returns 0 success, anything else error.
8064 */
8065static int __init
8066_scsih_init(void)
8067{
8068 int error;
8069
8070 mpt_ids = 0;
8071
8072 pr_info("%s version %s loaded\n", MPT3SAS_DRIVER_NAME,
8073 MPT3SAS_DRIVER_VERSION);
8074
8075 mpt3sas_transport_template =
8076 sas_attach_transport(&mpt3sas_transport_functions);
8077 if (!mpt3sas_transport_template)
8078 return -ENODEV;
8079
8080/* raid transport support */
8081 mpt3sas_raid_template = raid_class_attach(&mpt3sas_raid_functions);
8082 if (!mpt3sas_raid_template) {
8083 sas_release_transport(mpt3sas_transport_template);
8084 return -ENODEV;
8085 }
8086
8087 mpt3sas_base_initialize_callback_handler();
8088
8089 /* queuecommand callback hander */
8090 scsi_io_cb_idx = mpt3sas_base_register_callback_handler(_scsih_io_done);
8091
8092 /* task managment callback handler */
8093 tm_cb_idx = mpt3sas_base_register_callback_handler(_scsih_tm_done);
8094
8095 /* base internal commands callback handler */
8096 base_cb_idx = mpt3sas_base_register_callback_handler(mpt3sas_base_done);
8097 port_enable_cb_idx = mpt3sas_base_register_callback_handler(
8098 mpt3sas_port_enable_done);
8099
8100 /* transport internal commands callback handler */
8101 transport_cb_idx = mpt3sas_base_register_callback_handler(
8102 mpt3sas_transport_done);
8103
8104 /* scsih internal commands callback handler */
8105 scsih_cb_idx = mpt3sas_base_register_callback_handler(_scsih_done);
8106
8107 /* configuration page API internal commands callback handler */
8108 config_cb_idx = mpt3sas_base_register_callback_handler(
8109 mpt3sas_config_done);
8110
8111 /* ctl module callback handler */
8112 ctl_cb_idx = mpt3sas_base_register_callback_handler(mpt3sas_ctl_done);
8113
8114 tm_tr_cb_idx = mpt3sas_base_register_callback_handler(
8115 _scsih_tm_tr_complete);
8116
8117 tm_tr_volume_cb_idx = mpt3sas_base_register_callback_handler(
8118 _scsih_tm_volume_tr_complete);
8119
8120 tm_sas_control_cb_idx = mpt3sas_base_register_callback_handler(
8121 _scsih_sas_control_complete);
8122
8123 mpt3sas_ctl_init();
8124
8125 error = pci_register_driver(&scsih_driver);
8126 if (error) {
8127 /* raid transport support */
8128 raid_class_release(mpt3sas_raid_template);
8129 sas_release_transport(mpt3sas_transport_template);
8130 }
8131
8132 return error;
8133}
8134
8135/**
8136 * _scsih_exit - exit point for this driver (when it is a module).
8137 *
8138 * Returns 0 success, anything else error.
8139 */
8140static void __exit
8141_scsih_exit(void)
8142{
8143 pr_info("mpt3sas version %s unloading\n",
8144 MPT3SAS_DRIVER_VERSION);
8145
8146 mpt3sas_ctl_exit();
8147
8148 pci_unregister_driver(&scsih_driver);
8149
8150
8151 mpt3sas_base_release_callback_handler(scsi_io_cb_idx);
8152 mpt3sas_base_release_callback_handler(tm_cb_idx);
8153 mpt3sas_base_release_callback_handler(base_cb_idx);
8154 mpt3sas_base_release_callback_handler(port_enable_cb_idx);
8155 mpt3sas_base_release_callback_handler(transport_cb_idx);
8156 mpt3sas_base_release_callback_handler(scsih_cb_idx);
8157 mpt3sas_base_release_callback_handler(config_cb_idx);
8158 mpt3sas_base_release_callback_handler(ctl_cb_idx);
8159
8160 mpt3sas_base_release_callback_handler(tm_tr_cb_idx);
8161 mpt3sas_base_release_callback_handler(tm_tr_volume_cb_idx);
8162 mpt3sas_base_release_callback_handler(tm_sas_control_cb_idx);
8163
8164/* raid transport support */
8165 raid_class_release(mpt3sas_raid_template);
8166 sas_release_transport(mpt3sas_transport_template);
8167}
8168
8169module_init(_scsih_init);
8170module_exit(_scsih_exit);
Linux 6.x block layer and io_uring tree(s)