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[SCSI] mpt2sas: Remove code for TASK_SET_FULL from driver.
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / scsi / mpt2sas / mpt2sas_scsih.c
blobe4987dbbaa506063d6f653ab154d08e67ae0993c
1 /*
2 * Scsi Host Layer for MPT (Message Passing Technology) based controllers
3 *
4 * This code is based on drivers/scsi/mpt2sas/mpt2_scsih.c
5 * Copyright (C) 2007-2010 LSI Corporation
6 * (mailto:DL-MPTFusionLinux@lsi.com)
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * NO WARRANTY
19 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
20 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
21 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
22 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
23 * solely responsible for determining the appropriateness of using and
24 * distributing the Program and assumes all risks associated with its
25 * exercise of rights under this Agreement, including but not limited to
26 * the risks and costs of program errors, damage to or loss of data,
27 * programs or equipment, and unavailability or interruption of operations.
28
29 * DISCLAIMER OF LIABILITY
30 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
31 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
33 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
34 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
35 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
36 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
37
38 * You should have received a copy of the GNU General Public License
39 * along with this program; if not, write to the Free Software
40 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
41 * USA.
42 */
43
44 #include <linux/version.h>
45 #include <linux/module.h>
46 #include <linux/kernel.h>
47 #include <linux/init.h>
48 #include <linux/errno.h>
49 #include <linux/blkdev.h>
50 #include <linux/sched.h>
51 #include <linux/workqueue.h>
52 #include <linux/delay.h>
53 #include <linux/pci.h>
54 #include <linux/interrupt.h>
55 #include <linux/aer.h>
56 #include <linux/raid_class.h>
57 #include <linux/slab.h>
58
59 #include "mpt2sas_base.h"
60
61 MODULE_AUTHOR(MPT2SAS_AUTHOR);
62 MODULE_DESCRIPTION(MPT2SAS_DESCRIPTION);
63 MODULE_LICENSE("GPL");
64 MODULE_VERSION(MPT2SAS_DRIVER_VERSION);
65
66 #define RAID_CHANNEL 1
67
68 /* forward proto's */
69 static void _scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
70 struct _sas_node *sas_expander);
71 static void _firmware_event_work(struct work_struct *work);
72
73 static u8 _scsih_check_for_pending_tm(struct MPT2SAS_ADAPTER *ioc, u16 smid);
74
75 /* global parameters */
76 LIST_HEAD(mpt2sas_ioc_list);
77
78 /* local parameters */
79 static u8 scsi_io_cb_idx = -1;
80 static u8 tm_cb_idx = -1;
81 static u8 ctl_cb_idx = -1;
82 static u8 base_cb_idx = -1;
83 static u8 transport_cb_idx = -1;
84 static u8 scsih_cb_idx = -1;
85 static u8 config_cb_idx = -1;
86 static int mpt_ids;
87
88 static u8 tm_tr_cb_idx = -1 ;
89 static u8 tm_tr_volume_cb_idx = -1 ;
90 static u8 tm_sas_control_cb_idx = -1;
91
92 /* command line options */
93 static u32 logging_level;
94 MODULE_PARM_DESC(logging_level, " bits for enabling additional logging info "
95 "(default=0)");
96
97 /* scsi-mid layer global parmeter is max_report_luns, which is 511 */
98 #define MPT2SAS_MAX_LUN (16895)
99 static int max_lun = MPT2SAS_MAX_LUN;
100 module_param(max_lun, int, 0);
101 MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
102
103 /**
104 * struct sense_info - common structure for obtaining sense keys
105 * @skey: sense key
106 * @asc: additional sense code
107 * @ascq: additional sense code qualifier
108 */
109 struct sense_info {
110 u8 skey;
111 u8 asc;
112 u8 ascq;
113 };
114
115
116 #define MPT2SAS_RESCAN_AFTER_HOST_RESET (0xFFFF)
117
118 /**
119 * struct fw_event_work - firmware event struct
120 * @list: link list framework
121 * @work: work object (ioc->fault_reset_work_q)
122 * @cancel_pending_work: flag set during reset handling
123 * @ioc: per adapter object
124 * @VF_ID: virtual function id
125 * @VP_ID: virtual port id
126 * @ignore: flag meaning this event has been marked to ignore
127 * @event: firmware event MPI2_EVENT_XXX defined in mpt2_ioc.h
128 * @event_data: reply event data payload follows
129 *
130 * This object stored on ioc->fw_event_list.
131 */
132 struct fw_event_work {
133 struct list_head list;
134 u8 cancel_pending_work;
135 struct delayed_work delayed_work;
136 struct MPT2SAS_ADAPTER *ioc;
137 u8 VF_ID;
138 u8 VP_ID;
139 u8 ignore;
140 u16 event;
141 void *event_data;
142 };
143
144 /* raid transport support */
145 static struct raid_template *mpt2sas_raid_template;
146
147 /**
148 * struct _scsi_io_transfer - scsi io transfer
149 * @handle: sas device handle (assigned by firmware)
150 * @is_raid: flag set for hidden raid components
151 * @dir: DMA_TO_DEVICE, DMA_FROM_DEVICE,
152 * @data_length: data transfer length
153 * @data_dma: dma pointer to data
154 * @sense: sense data
155 * @lun: lun number
156 * @cdb_length: cdb length
157 * @cdb: cdb contents
158 * @timeout: timeout for this command
159 * @VF_ID: virtual function id
160 * @VP_ID: virtual port id
161 * @valid_reply: flag set for reply message
162 * @sense_length: sense length
163 * @ioc_status: ioc status
164 * @scsi_state: scsi state
165 * @scsi_status: scsi staus
166 * @log_info: log information
167 * @transfer_length: data length transfer when there is a reply message
168 *
169 * Used for sending internal scsi commands to devices within this module.
170 * Refer to _scsi_send_scsi_io().
171 */
172 struct _scsi_io_transfer {
173 u16 handle;
174 u8 is_raid;
175 enum dma_data_direction dir;
176 u32 data_length;
177 dma_addr_t data_dma;
178 u8 sense[SCSI_SENSE_BUFFERSIZE];
179 u32 lun;
180 u8 cdb_length;
181 u8 cdb[32];
182 u8 timeout;
183 u8 VF_ID;
184 u8 VP_ID;
185 u8 valid_reply;
186 /* the following bits are only valid when 'valid_reply = 1' */
187 u32 sense_length;
188 u16 ioc_status;
189 u8 scsi_state;
190 u8 scsi_status;
191 u32 log_info;
192 u32 transfer_length;
193 };
194
195 /*
196 * The pci device ids are defined in mpi/mpi2_cnfg.h.
197 */
198 static struct pci_device_id scsih_pci_table[] = {
199 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004,
200 PCI_ANY_ID, PCI_ANY_ID },
201 /* Falcon ~ 2008*/
202 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2008,
203 PCI_ANY_ID, PCI_ANY_ID },
204 /* Liberator ~ 2108 */
205 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_1,
206 PCI_ANY_ID, PCI_ANY_ID },
207 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_2,
208 PCI_ANY_ID, PCI_ANY_ID },
209 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_3,
210 PCI_ANY_ID, PCI_ANY_ID },
211 /* Meteor ~ 2116 */
212 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_1,
213 PCI_ANY_ID, PCI_ANY_ID },
214 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2,
215 PCI_ANY_ID, PCI_ANY_ID },
216 /* Thunderbolt ~ 2208 */
217 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_1,
218 PCI_ANY_ID, PCI_ANY_ID },
219 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_2,
220 PCI_ANY_ID, PCI_ANY_ID },
221 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_3,
222 PCI_ANY_ID, PCI_ANY_ID },
223 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_4,
224 PCI_ANY_ID, PCI_ANY_ID },
225 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_5,
226 PCI_ANY_ID, PCI_ANY_ID },
227 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_6,
228 PCI_ANY_ID, PCI_ANY_ID },
229 /* Mustang ~ 2308 */
230 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_1,
231 PCI_ANY_ID, PCI_ANY_ID },
232 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2,
233 PCI_ANY_ID, PCI_ANY_ID },
234 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_3,
235 PCI_ANY_ID, PCI_ANY_ID },
236 {0} /* Terminating entry */
237 };
238 MODULE_DEVICE_TABLE(pci, scsih_pci_table);
239
240 /**
241 * _scsih_set_debug_level - global setting of ioc->logging_level.
242 *
243 * Note: The logging levels are defined in mpt2sas_debug.h.
244 */
245 static int
246 _scsih_set_debug_level(const char *val, struct kernel_param *kp)
247 {
248 int ret = param_set_int(val, kp);
249 struct MPT2SAS_ADAPTER *ioc;
250
251 if (ret)
252 return ret;
253
254 printk(KERN_INFO "setting logging_level(0x%08x)\n", logging_level);
255 list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
256 ioc->logging_level = logging_level;
257 return 0;
258 }
259 module_param_call(logging_level, _scsih_set_debug_level, param_get_int,
260 &logging_level, 0644);
261
262 /**
263 * _scsih_srch_boot_sas_address - search based on sas_address
264 * @sas_address: sas address
265 * @boot_device: boot device object from bios page 2
266 *
267 * Returns 1 when there's a match, 0 means no match.
268 */
269 static inline int
270 _scsih_srch_boot_sas_address(u64 sas_address,
271 Mpi2BootDeviceSasWwid_t *boot_device)
272 {
273 return (sas_address == le64_to_cpu(boot_device->SASAddress)) ? 1 : 0;
274 }
275
276 /**
277 * _scsih_srch_boot_device_name - search based on device name
278 * @device_name: device name specified in INDENTIFY fram
279 * @boot_device: boot device object from bios page 2
280 *
281 * Returns 1 when there's a match, 0 means no match.
282 */
283 static inline int
284 _scsih_srch_boot_device_name(u64 device_name,
285 Mpi2BootDeviceDeviceName_t *boot_device)
286 {
287 return (device_name == le64_to_cpu(boot_device->DeviceName)) ? 1 : 0;
288 }
289
290 /**
291 * _scsih_srch_boot_encl_slot - search based on enclosure_logical_id/slot
292 * @enclosure_logical_id: enclosure logical id
293 * @slot_number: slot number
294 * @boot_device: boot device object from bios page 2
295 *
296 * Returns 1 when there's a match, 0 means no match.
297 */
298 static inline int
299 _scsih_srch_boot_encl_slot(u64 enclosure_logical_id, u16 slot_number,
300 Mpi2BootDeviceEnclosureSlot_t *boot_device)
301 {
302 return (enclosure_logical_id == le64_to_cpu(boot_device->
303 EnclosureLogicalID) && slot_number == le16_to_cpu(boot_device->
304 SlotNumber)) ? 1 : 0;
305 }
306
307 /**
308 * _scsih_is_boot_device - search for matching boot device.
309 * @sas_address: sas address
310 * @device_name: device name specified in INDENTIFY fram
311 * @enclosure_logical_id: enclosure logical id
312 * @slot_number: slot number
313 * @form: specifies boot device form
314 * @boot_device: boot device object from bios page 2
315 *
316 * Returns 1 when there's a match, 0 means no match.
317 */
318 static int
319 _scsih_is_boot_device(u64 sas_address, u64 device_name,
320 u64 enclosure_logical_id, u16 slot, u8 form,
321 Mpi2BiosPage2BootDevice_t *boot_device)
322 {
323 int rc = 0;
324
325 switch (form) {
326 case MPI2_BIOSPAGE2_FORM_SAS_WWID:
327 if (!sas_address)
328 break;
329 rc = _scsih_srch_boot_sas_address(
330 sas_address, &boot_device->SasWwid);
331 break;
332 case MPI2_BIOSPAGE2_FORM_ENCLOSURE_SLOT:
333 if (!enclosure_logical_id)
334 break;
335 rc = _scsih_srch_boot_encl_slot(
336 enclosure_logical_id,
337 slot, &boot_device->EnclosureSlot);
338 break;
339 case MPI2_BIOSPAGE2_FORM_DEVICE_NAME:
340 if (!device_name)
341 break;
342 rc = _scsih_srch_boot_device_name(
343 device_name, &boot_device->DeviceName);
344 break;
345 case MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED:
346 break;
347 }
348
349 return rc;
350 }
351
352 /**
353 * _scsih_get_sas_address - set the sas_address for given device handle
354 * @handle: device handle
355 * @sas_address: sas address
356 *
357 * Returns 0 success, non-zero when failure
358 */
359 static int
360 _scsih_get_sas_address(struct MPT2SAS_ADAPTER *ioc, u16 handle,
361 u64 *sas_address)
362 {
363 Mpi2SasDevicePage0_t sas_device_pg0;
364 Mpi2ConfigReply_t mpi_reply;
365 u32 ioc_status;
366
367 if (handle <= ioc->sas_hba.num_phys) {
368 *sas_address = ioc->sas_hba.sas_address;
369 return 0;
370 } else
371 *sas_address = 0;
372
373 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
374 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
375 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
376 ioc->name, __FILE__, __LINE__, __func__);
377 return -ENXIO;
378 }
379
380 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
381 MPI2_IOCSTATUS_MASK;
382 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
383 printk(MPT2SAS_ERR_FMT "handle(0x%04x), ioc_status(0x%04x)"
384 "\nfailure at %s:%d/%s()!\n", ioc->name, handle, ioc_status,
385 __FILE__, __LINE__, __func__);
386 return -EIO;
387 }
388
389 *sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
390 return 0;
391 }
392
393 /**
394 * _scsih_determine_boot_device - determine boot device.
395 * @ioc: per adapter object
396 * @device: either sas_device or raid_device object
397 * @is_raid: [flag] 1 = raid object, 0 = sas object
398 *
399 * Determines whether this device should be first reported device to
400 * to scsi-ml or sas transport, this purpose is for persistant boot device.
401 * There are primary, alternate, and current entries in bios page 2. The order
402 * priority is primary, alternate, then current. This routine saves
403 * the corresponding device object and is_raid flag in the ioc object.
404 * The saved data to be used later in _scsih_probe_boot_devices().
405 */
406 static void
407 _scsih_determine_boot_device(struct MPT2SAS_ADAPTER *ioc,
408 void *device, u8 is_raid)
409 {
410 struct _sas_device *sas_device;
411 struct _raid_device *raid_device;
412 u64 sas_address;
413 u64 device_name;
414 u64 enclosure_logical_id;
415 u16 slot;
416
417 /* only process this function when driver loads */
418 if (!ioc->wait_for_port_enable_to_complete)
419 return;
420
421 if (!is_raid) {
422 sas_device = device;
423 sas_address = sas_device->sas_address;
424 device_name = sas_device->device_name;
425 enclosure_logical_id = sas_device->enclosure_logical_id;
426 slot = sas_device->slot;
427 } else {
428 raid_device = device;
429 sas_address = raid_device->wwid;
430 device_name = 0;
431 enclosure_logical_id = 0;
432 slot = 0;
433 }
434
435 if (!ioc->req_boot_device.device) {
436 if (_scsih_is_boot_device(sas_address, device_name,
437 enclosure_logical_id, slot,
438 (ioc->bios_pg2.ReqBootDeviceForm &
439 MPI2_BIOSPAGE2_FORM_MASK),
440 &ioc->bios_pg2.RequestedBootDevice)) {
441 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
442 "%s: req_boot_device(0x%016llx)\n",
443 ioc->name, __func__,
444 (unsigned long long)sas_address));
445 ioc->req_boot_device.device = device;
446 ioc->req_boot_device.is_raid = is_raid;
447 }
448 }
449
450 if (!ioc->req_alt_boot_device.device) {
451 if (_scsih_is_boot_device(sas_address, device_name,
452 enclosure_logical_id, slot,
453 (ioc->bios_pg2.ReqAltBootDeviceForm &
454 MPI2_BIOSPAGE2_FORM_MASK),
455 &ioc->bios_pg2.RequestedAltBootDevice)) {
456 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
457 "%s: req_alt_boot_device(0x%016llx)\n",
458 ioc->name, __func__,
459 (unsigned long long)sas_address));
460 ioc->req_alt_boot_device.device = device;
461 ioc->req_alt_boot_device.is_raid = is_raid;
462 }
463 }
464
465 if (!ioc->current_boot_device.device) {
466 if (_scsih_is_boot_device(sas_address, device_name,
467 enclosure_logical_id, slot,
468 (ioc->bios_pg2.CurrentBootDeviceForm &
469 MPI2_BIOSPAGE2_FORM_MASK),
470 &ioc->bios_pg2.CurrentBootDevice)) {
471 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
472 "%s: current_boot_device(0x%016llx)\n",
473 ioc->name, __func__,
474 (unsigned long long)sas_address));
475 ioc->current_boot_device.device = device;
476 ioc->current_boot_device.is_raid = is_raid;
477 }
478 }
479 }
480
481 /**
482 * mpt2sas_scsih_sas_device_find_by_sas_address - sas device search
483 * @ioc: per adapter object
484 * @sas_address: sas address
485 * Context: Calling function should acquire ioc->sas_device_lock
486 *
487 * This searches for sas_device based on sas_address, then return sas_device
488 * object.
489 */
490 struct _sas_device *
491 mpt2sas_scsih_sas_device_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
492 u64 sas_address)
493 {
494 struct _sas_device *sas_device;
495
496 list_for_each_entry(sas_device, &ioc->sas_device_list, list)
497 if (sas_device->sas_address == sas_address)
498 return sas_device;
499
500 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
501 if (sas_device->sas_address == sas_address)
502 return sas_device;
503
504 return NULL;
505 }
506
507 /**
508 * _scsih_sas_device_find_by_handle - sas device search
509 * @ioc: per adapter object
510 * @handle: sas device handle (assigned by firmware)
511 * Context: Calling function should acquire ioc->sas_device_lock
512 *
513 * This searches for sas_device based on sas_address, then return sas_device
514 * object.
515 */
516 static struct _sas_device *
517 _scsih_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
518 {
519 struct _sas_device *sas_device;
520
521 list_for_each_entry(sas_device, &ioc->sas_device_list, list)
522 if (sas_device->handle == handle)
523 return sas_device;
524
525 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
526 if (sas_device->handle == handle)
527 return sas_device;
528
529 return NULL;
530 }
531
532 /**
533 * _scsih_sas_device_remove - remove sas_device from list.
534 * @ioc: per adapter object
535 * @sas_device: the sas_device object
536 * Context: This function will acquire ioc->sas_device_lock.
537 *
538 * Removing object and freeing associated memory from the ioc->sas_device_list.
539 */
540 static void
541 _scsih_sas_device_remove(struct MPT2SAS_ADAPTER *ioc,
542 struct _sas_device *sas_device)
543 {
544 unsigned long flags;
545
546 if (!sas_device)
547 return;
548
549 spin_lock_irqsave(&ioc->sas_device_lock, flags);
550 if (mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
551 sas_device->sas_address)) {
552 list_del(&sas_device->list);
553 kfree(sas_device);
554 }
555 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
556 }
557
558 /**
559 * _scsih_sas_device_add - insert sas_device to the list.
560 * @ioc: per adapter object
561 * @sas_device: the sas_device object
562 * Context: This function will acquire ioc->sas_device_lock.
563 *
564 * Adding new object to the ioc->sas_device_list.
565 */
566 static void
567 _scsih_sas_device_add(struct MPT2SAS_ADAPTER *ioc,
568 struct _sas_device *sas_device)
569 {
570 unsigned long flags;
571
572 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
573 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
574 sas_device->handle, (unsigned long long)sas_device->sas_address));
575
576 spin_lock_irqsave(&ioc->sas_device_lock, flags);
577 list_add_tail(&sas_device->list, &ioc->sas_device_list);
578 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
579
580 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
581 sas_device->sas_address_parent))
582 _scsih_sas_device_remove(ioc, sas_device);
583 }
584
585 /**
586 * _scsih_sas_device_init_add - insert sas_device to the list.
587 * @ioc: per adapter object
588 * @sas_device: the sas_device object
589 * Context: This function will acquire ioc->sas_device_lock.
590 *
591 * Adding new object at driver load time to the ioc->sas_device_init_list.
592 */
593 static void
594 _scsih_sas_device_init_add(struct MPT2SAS_ADAPTER *ioc,
595 struct _sas_device *sas_device)
596 {
597 unsigned long flags;
598
599 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
600 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
601 sas_device->handle, (unsigned long long)sas_device->sas_address));
602
603 spin_lock_irqsave(&ioc->sas_device_lock, flags);
604 list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
605 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
606 _scsih_determine_boot_device(ioc, sas_device, 0);
607 }
608
609 /**
610 * _scsih_raid_device_find_by_id - raid device search
611 * @ioc: per adapter object
612 * @id: sas device target id
613 * @channel: sas device channel
614 * Context: Calling function should acquire ioc->raid_device_lock
615 *
616 * This searches for raid_device based on target id, then return raid_device
617 * object.
618 */
619 static struct _raid_device *
620 _scsih_raid_device_find_by_id(struct MPT2SAS_ADAPTER *ioc, int id, int channel)
621 {
622 struct _raid_device *raid_device, *r;
623
624 r = NULL;
625 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
626 if (raid_device->id == id && raid_device->channel == channel) {
627 r = raid_device;
628 goto out;
629 }
630 }
631
632 out:
633 return r;
634 }
635
636 /**
637 * _scsih_raid_device_find_by_handle - raid device search
638 * @ioc: per adapter object
639 * @handle: sas device handle (assigned by firmware)
640 * Context: Calling function should acquire ioc->raid_device_lock
641 *
642 * This searches for raid_device based on handle, then return raid_device
643 * object.
644 */
645 static struct _raid_device *
646 _scsih_raid_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
647 {
648 struct _raid_device *raid_device, *r;
649
650 r = NULL;
651 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
652 if (raid_device->handle != handle)
653 continue;
654 r = raid_device;
655 goto out;
656 }
657
658 out:
659 return r;
660 }
661
662 /**
663 * _scsih_raid_device_find_by_wwid - raid device search
664 * @ioc: per adapter object
665 * @handle: sas device handle (assigned by firmware)
666 * Context: Calling function should acquire ioc->raid_device_lock
667 *
668 * This searches for raid_device based on wwid, then return raid_device
669 * object.
670 */
671 static struct _raid_device *
672 _scsih_raid_device_find_by_wwid(struct MPT2SAS_ADAPTER *ioc, u64 wwid)
673 {
674 struct _raid_device *raid_device, *r;
675
676 r = NULL;
677 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
678 if (raid_device->wwid != wwid)
679 continue;
680 r = raid_device;
681 goto out;
682 }
683
684 out:
685 return r;
686 }
687
688 /**
689 * _scsih_raid_device_add - add raid_device object
690 * @ioc: per adapter object
691 * @raid_device: raid_device object
692 *
693 * This is added to the raid_device_list link list.
694 */
695 static void
696 _scsih_raid_device_add(struct MPT2SAS_ADAPTER *ioc,
697 struct _raid_device *raid_device)
698 {
699 unsigned long flags;
700
701 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
702 "(0x%04x), wwid(0x%016llx)\n", ioc->name, __func__,
703 raid_device->handle, (unsigned long long)raid_device->wwid));
704
705 spin_lock_irqsave(&ioc->raid_device_lock, flags);
706 list_add_tail(&raid_device->list, &ioc->raid_device_list);
707 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
708 }
709
710 /**
711 * _scsih_raid_device_remove - delete raid_device object
712 * @ioc: per adapter object
713 * @raid_device: raid_device object
714 *
715 * This is removed from the raid_device_list link list.
716 */
717 static void
718 _scsih_raid_device_remove(struct MPT2SAS_ADAPTER *ioc,
719 struct _raid_device *raid_device)
720 {
721 unsigned long flags;
722
723 spin_lock_irqsave(&ioc->raid_device_lock, flags);
724 list_del(&raid_device->list);
725 memset(raid_device, 0, sizeof(struct _raid_device));
726 kfree(raid_device);
727 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
728 }
729
730 /**
731 * mpt2sas_scsih_expander_find_by_handle - expander device search
732 * @ioc: per adapter object
733 * @handle: expander handle (assigned by firmware)
734 * Context: Calling function should acquire ioc->sas_device_lock
735 *
736 * This searches for expander device based on handle, then returns the
737 * sas_node object.
738 */
739 struct _sas_node *
740 mpt2sas_scsih_expander_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
741 {
742 struct _sas_node *sas_expander, *r;
743
744 r = NULL;
745 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
746 if (sas_expander->handle != handle)
747 continue;
748 r = sas_expander;
749 goto out;
750 }
751 out:
752 return r;
753 }
754
755 /**
756 * mpt2sas_scsih_expander_find_by_sas_address - expander device search
757 * @ioc: per adapter object
758 * @sas_address: sas address
759 * Context: Calling function should acquire ioc->sas_node_lock.
760 *
761 * This searches for expander device based on sas_address, then returns the
762 * sas_node object.
763 */
764 struct _sas_node *
765 mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
766 u64 sas_address)
767 {
768 struct _sas_node *sas_expander, *r;
769
770 r = NULL;
771 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
772 if (sas_expander->sas_address != sas_address)
773 continue;
774 r = sas_expander;
775 goto out;
776 }
777 out:
778 return r;
779 }
780
781 /**
782 * _scsih_expander_node_add - insert expander device to the list.
783 * @ioc: per adapter object
784 * @sas_expander: the sas_device object
785 * Context: This function will acquire ioc->sas_node_lock.
786 *
787 * Adding new object to the ioc->sas_expander_list.
788 *
789 * Return nothing.
790 */
791 static void
792 _scsih_expander_node_add(struct MPT2SAS_ADAPTER *ioc,
793 struct _sas_node *sas_expander)
794 {
795 unsigned long flags;
796
797 spin_lock_irqsave(&ioc->sas_node_lock, flags);
798 list_add_tail(&sas_expander->list, &ioc->sas_expander_list);
799 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
800 }
801
802 /**
803 * _scsih_is_end_device - determines if device is an end device
804 * @device_info: bitfield providing information about the device.
805 * Context: none
806 *
807 * Returns 1 if end device.
808 */
809 static int
810 _scsih_is_end_device(u32 device_info)
811 {
812 if (device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE &&
813 ((device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) |
814 (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) |
815 (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))
816 return 1;
817 else
818 return 0;
819 }
820
821 /**
822 * mptscsih_get_scsi_lookup - returns scmd entry
823 * @ioc: per adapter object
824 * @smid: system request message index
825 *
826 * Returns the smid stored scmd pointer.
827 */
828 static struct scsi_cmnd *
829 _scsih_scsi_lookup_get(struct MPT2SAS_ADAPTER *ioc, u16 smid)
830 {
831 return ioc->scsi_lookup[smid - 1].scmd;
832 }
833
834 /**
835 * _scsih_scsi_lookup_find_by_scmd - scmd lookup
836 * @ioc: per adapter object
837 * @smid: system request message index
838 * @scmd: pointer to scsi command object
839 * Context: This function will acquire ioc->scsi_lookup_lock.
840 *
841 * This will search for a scmd pointer in the scsi_lookup array,
842 * returning the revelent smid. A returned value of zero means invalid.
843 */
844 static u16
845 _scsih_scsi_lookup_find_by_scmd(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd
846 *scmd)
847 {
848 u16 smid;
849 unsigned long flags;
850 int i;
851
852 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
853 smid = 0;
854 for (i = 0; i < ioc->scsiio_depth; i++) {
855 if (ioc->scsi_lookup[i].scmd == scmd) {
856 smid = ioc->scsi_lookup[i].smid;
857 goto out;
858 }
859 }
860 out:
861 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
862 return smid;
863 }
864
865 /**
866 * _scsih_scsi_lookup_find_by_target - search for matching channel:id
867 * @ioc: per adapter object
868 * @id: target id
869 * @channel: channel
870 * Context: This function will acquire ioc->scsi_lookup_lock.
871 *
872 * This will search for a matching channel:id in the scsi_lookup array,
873 * returning 1 if found.
874 */
875 static u8
876 _scsih_scsi_lookup_find_by_target(struct MPT2SAS_ADAPTER *ioc, int id,
877 int channel)
878 {
879 u8 found;
880 unsigned long flags;
881 int i;
882
883 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
884 found = 0;
885 for (i = 0 ; i < ioc->scsiio_depth; i++) {
886 if (ioc->scsi_lookup[i].scmd &&
887 (ioc->scsi_lookup[i].scmd->device->id == id &&
888 ioc->scsi_lookup[i].scmd->device->channel == channel)) {
889 found = 1;
890 goto out;
891 }
892 }
893 out:
894 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
895 return found;
896 }
897
898 /**
899 * _scsih_scsi_lookup_find_by_lun - search for matching channel:id:lun
900 * @ioc: per adapter object
901 * @id: target id
902 * @lun: lun number
903 * @channel: channel
904 * Context: This function will acquire ioc->scsi_lookup_lock.
905 *
906 * This will search for a matching channel:id:lun in the scsi_lookup array,
907 * returning 1 if found.
908 */
909 static u8
910 _scsih_scsi_lookup_find_by_lun(struct MPT2SAS_ADAPTER *ioc, int id,
911 unsigned int lun, int channel)
912 {
913 u8 found;
914 unsigned long flags;
915 int i;
916
917 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
918 found = 0;
919 for (i = 0 ; i < ioc->scsiio_depth; i++) {
920 if (ioc->scsi_lookup[i].scmd &&
921 (ioc->scsi_lookup[i].scmd->device->id == id &&
922 ioc->scsi_lookup[i].scmd->device->channel == channel &&
923 ioc->scsi_lookup[i].scmd->device->lun == lun)) {
924 found = 1;
925 goto out;
926 }
927 }
928 out:
929 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
930 return found;
931 }
932
933 /**
934 * _scsih_get_chain_buffer_tracker - obtain chain tracker
935 * @ioc: per adapter object
936 * @smid: smid associated to an IO request
937 *
938 * Returns chain tracker(from ioc->free_chain_list)
939 */
940 static struct chain_tracker *
941 _scsih_get_chain_buffer_tracker(struct MPT2SAS_ADAPTER *ioc, u16 smid)
942 {
943 struct chain_tracker *chain_req;
944 unsigned long flags;
945
946 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
947 if (list_empty(&ioc->free_chain_list)) {
948 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
949 printk(MPT2SAS_WARN_FMT "chain buffers not available\n",
950 ioc->name);
951 return NULL;
952 }
953 chain_req = list_entry(ioc->free_chain_list.next,
954 struct chain_tracker, tracker_list);
955 list_del_init(&chain_req->tracker_list);
956 list_add_tail(&chain_req->tracker_list,
957 &ioc->scsi_lookup[smid - 1].chain_list);
958 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
959 return chain_req;
960 }
961
962 /**
963 * _scsih_build_scatter_gather - main sg creation routine
964 * @ioc: per adapter object
965 * @scmd: scsi command
966 * @smid: system request message index
967 * Context: none.
968 *
969 * The main routine that builds scatter gather table from a given
970 * scsi request sent via the .queuecommand main handler.
971 *
972 * Returns 0 success, anything else error
973 */
974 static int
975 _scsih_build_scatter_gather(struct MPT2SAS_ADAPTER *ioc,
976 struct scsi_cmnd *scmd, u16 smid)
977 {
978 Mpi2SCSIIORequest_t *mpi_request;
979 dma_addr_t chain_dma;
980 struct scatterlist *sg_scmd;
981 void *sg_local, *chain;
982 u32 chain_offset;
983 u32 chain_length;
984 u32 chain_flags;
985 int sges_left;
986 u32 sges_in_segment;
987 u32 sgl_flags;
988 u32 sgl_flags_last_element;
989 u32 sgl_flags_end_buffer;
990 struct chain_tracker *chain_req;
991
992 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
993
994 /* init scatter gather flags */
995 sgl_flags = MPI2_SGE_FLAGS_SIMPLE_ELEMENT;
996 if (scmd->sc_data_direction == DMA_TO_DEVICE)
997 sgl_flags |= MPI2_SGE_FLAGS_HOST_TO_IOC;
998 sgl_flags_last_element = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT)
999 << MPI2_SGE_FLAGS_SHIFT;
1000 sgl_flags_end_buffer = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT |
1001 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST)
1002 << MPI2_SGE_FLAGS_SHIFT;
1003 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
1004
1005 sg_scmd = scsi_sglist(scmd);
1006 sges_left = scsi_dma_map(scmd);
1007 if (sges_left < 0) {
1008 sdev_printk(KERN_ERR, scmd->device, "pci_map_sg"
1009 " failed: request for %d bytes!\n", scsi_bufflen(scmd));
1010 return -ENOMEM;
1011 }
1012
1013 sg_local = &mpi_request->SGL;
1014 sges_in_segment = ioc->max_sges_in_main_message;
1015 if (sges_left <= sges_in_segment)
1016 goto fill_in_last_segment;
1017
1018 mpi_request->ChainOffset = (offsetof(Mpi2SCSIIORequest_t, SGL) +
1019 (sges_in_segment * ioc->sge_size))/4;
1020
1021 /* fill in main message segment when there is a chain following */
1022 while (sges_in_segment) {
1023 if (sges_in_segment == 1)
1024 ioc->base_add_sg_single(sg_local,
1025 sgl_flags_last_element | sg_dma_len(sg_scmd),
1026 sg_dma_address(sg_scmd));
1027 else
1028 ioc->base_add_sg_single(sg_local, sgl_flags |
1029 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1030 sg_scmd = sg_next(sg_scmd);
1031 sg_local += ioc->sge_size;
1032 sges_left--;
1033 sges_in_segment--;
1034 }
1035
1036 /* initializing the chain flags and pointers */
1037 chain_flags = MPI2_SGE_FLAGS_CHAIN_ELEMENT << MPI2_SGE_FLAGS_SHIFT;
1038 chain_req = _scsih_get_chain_buffer_tracker(ioc, smid);
1039 if (!chain_req)
1040 return -1;
1041 chain = chain_req->chain_buffer;
1042 chain_dma = chain_req->chain_buffer_dma;
1043 do {
1044 sges_in_segment = (sges_left <=
1045 ioc->max_sges_in_chain_message) ? sges_left :
1046 ioc->max_sges_in_chain_message;
1047 chain_offset = (sges_left == sges_in_segment) ?
1048 0 : (sges_in_segment * ioc->sge_size)/4;
1049 chain_length = sges_in_segment * ioc->sge_size;
1050 if (chain_offset) {
1051 chain_offset = chain_offset <<
1052 MPI2_SGE_CHAIN_OFFSET_SHIFT;
1053 chain_length += ioc->sge_size;
1054 }
1055 ioc->base_add_sg_single(sg_local, chain_flags | chain_offset |
1056 chain_length, chain_dma);
1057 sg_local = chain;
1058 if (!chain_offset)
1059 goto fill_in_last_segment;
1060
1061 /* fill in chain segments */
1062 while (sges_in_segment) {
1063 if (sges_in_segment == 1)
1064 ioc->base_add_sg_single(sg_local,
1065 sgl_flags_last_element |
1066 sg_dma_len(sg_scmd),
1067 sg_dma_address(sg_scmd));
1068 else
1069 ioc->base_add_sg_single(sg_local, sgl_flags |
1070 sg_dma_len(sg_scmd),
1071 sg_dma_address(sg_scmd));
1072 sg_scmd = sg_next(sg_scmd);
1073 sg_local += ioc->sge_size;
1074 sges_left--;
1075 sges_in_segment--;
1076 }
1077
1078 chain_req = _scsih_get_chain_buffer_tracker(ioc, smid);
1079 if (!chain_req)
1080 return -1;
1081 chain = chain_req->chain_buffer;
1082 chain_dma = chain_req->chain_buffer_dma;
1083 } while (1);
1084
1085
1086 fill_in_last_segment:
1087
1088 /* fill the last segment */
1089 while (sges_left) {
1090 if (sges_left == 1)
1091 ioc->base_add_sg_single(sg_local, sgl_flags_end_buffer |
1092 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1093 else
1094 ioc->base_add_sg_single(sg_local, sgl_flags |
1095 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1096 sg_scmd = sg_next(sg_scmd);
1097 sg_local += ioc->sge_size;
1098 sges_left--;
1099 }
1100
1101 return 0;
1102 }
1103
1104 /**
1105 * _scsih_change_queue_depth - setting device queue depth
1106 * @sdev: scsi device struct
1107 * @qdepth: requested queue depth
1108 * @reason: calling context
1109 *
1110 * Returns queue depth.
1111 */
1112 static int
1113 _scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1114 {
1115 struct Scsi_Host *shost = sdev->host;
1116 int max_depth;
1117 int tag_type;
1118 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1119 struct MPT2SAS_DEVICE *sas_device_priv_data;
1120 struct MPT2SAS_TARGET *sas_target_priv_data;
1121 struct _sas_device *sas_device;
1122 unsigned long flags;
1123
1124 if (reason != SCSI_QDEPTH_DEFAULT)
1125 return -EOPNOTSUPP;
1126
1127 max_depth = shost->can_queue;
1128
1129 /* limit max device queue for SATA to 32 */
1130 sas_device_priv_data = sdev->hostdata;
1131 if (!sas_device_priv_data)
1132 goto not_sata;
1133 sas_target_priv_data = sas_device_priv_data->sas_target;
1134 if (!sas_target_priv_data)
1135 goto not_sata;
1136 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))
1137 goto not_sata;
1138 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1139 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1140 sas_device_priv_data->sas_target->sas_address);
1141 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1142 if (sas_device && sas_device->device_info &
1143 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1144 max_depth = MPT2SAS_SATA_QUEUE_DEPTH;
1145
1146 not_sata:
1147
1148 if (!sdev->tagged_supported)
1149 max_depth = 1;
1150 if (qdepth > max_depth)
1151 qdepth = max_depth;
1152 tag_type = (qdepth == 1) ? 0 : MSG_SIMPLE_TAG;
1153 scsi_adjust_queue_depth(sdev, tag_type, qdepth);
1154
1155 if (sdev->inquiry_len > 7)
1156 sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), "
1157 "simple(%d), ordered(%d), scsi_level(%d), cmd_que(%d)\n",
1158 sdev->queue_depth, sdev->tagged_supported, sdev->simple_tags,
1159 sdev->ordered_tags, sdev->scsi_level,
1160 (sdev->inquiry[7] & 2) >> 1);
1161
1162 return sdev->queue_depth;
1163 }
1164
1165 /**
1166 * _scsih_change_queue_type - changing device queue tag type
1167 * @sdev: scsi device struct
1168 * @tag_type: requested tag type
1169 *
1170 * Returns queue tag type.
1171 */
1172 static int
1173 _scsih_change_queue_type(struct scsi_device *sdev, int tag_type)
1174 {
1175 if (sdev->tagged_supported) {
1176 scsi_set_tag_type(sdev, tag_type);
1177 if (tag_type)
1178 scsi_activate_tcq(sdev, sdev->queue_depth);
1179 else
1180 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1181 } else
1182 tag_type = 0;
1183
1184 return tag_type;
1185 }
1186
1187 /**
1188 * _scsih_target_alloc - target add routine
1189 * @starget: scsi target struct
1190 *
1191 * Returns 0 if ok. Any other return is assumed to be an error and
1192 * the device is ignored.
1193 */
1194 static int
1195 _scsih_target_alloc(struct scsi_target *starget)
1196 {
1197 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1198 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1199 struct MPT2SAS_TARGET *sas_target_priv_data;
1200 struct _sas_device *sas_device;
1201 struct _raid_device *raid_device;
1202 unsigned long flags;
1203 struct sas_rphy *rphy;
1204
1205 sas_target_priv_data = kzalloc(sizeof(struct scsi_target), GFP_KERNEL);
1206 if (!sas_target_priv_data)
1207 return -ENOMEM;
1208
1209 starget->hostdata = sas_target_priv_data;
1210 sas_target_priv_data->starget = starget;
1211 sas_target_priv_data->handle = MPT2SAS_INVALID_DEVICE_HANDLE;
1212
1213 /* RAID volumes */
1214 if (starget->channel == RAID_CHANNEL) {
1215 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1216 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1217 starget->channel);
1218 if (raid_device) {
1219 sas_target_priv_data->handle = raid_device->handle;
1220 sas_target_priv_data->sas_address = raid_device->wwid;
1221 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME;
1222 raid_device->starget = starget;
1223 }
1224 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1225 return 0;
1226 }
1227
1228 /* sas/sata devices */
1229 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1230 rphy = dev_to_rphy(starget->dev.parent);
1231 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1232 rphy->identify.sas_address);
1233
1234 if (sas_device) {
1235 sas_target_priv_data->handle = sas_device->handle;
1236 sas_target_priv_data->sas_address = sas_device->sas_address;
1237 sas_device->starget = starget;
1238 sas_device->id = starget->id;
1239 sas_device->channel = starget->channel;
1240 if (test_bit(sas_device->handle, ioc->pd_handles))
1241 sas_target_priv_data->flags |=
1242 MPT_TARGET_FLAGS_RAID_COMPONENT;
1243 }
1244 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1245
1246 return 0;
1247 }
1248
1249 /**
1250 * _scsih_target_destroy - target destroy routine
1251 * @starget: scsi target struct
1252 *
1253 * Returns nothing.
1254 */
1255 static void
1256 _scsih_target_destroy(struct scsi_target *starget)
1257 {
1258 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1259 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1260 struct MPT2SAS_TARGET *sas_target_priv_data;
1261 struct _sas_device *sas_device;
1262 struct _raid_device *raid_device;
1263 unsigned long flags;
1264 struct sas_rphy *rphy;
1265
1266 sas_target_priv_data = starget->hostdata;
1267 if (!sas_target_priv_data)
1268 return;
1269
1270 if (starget->channel == RAID_CHANNEL) {
1271 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1272 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1273 starget->channel);
1274 if (raid_device) {
1275 raid_device->starget = NULL;
1276 raid_device->sdev = NULL;
1277 }
1278 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1279 goto out;
1280 }
1281
1282 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1283 rphy = dev_to_rphy(starget->dev.parent);
1284 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1285 rphy->identify.sas_address);
1286 if (sas_device && (sas_device->starget == starget) &&
1287 (sas_device->id == starget->id) &&
1288 (sas_device->channel == starget->channel))
1289 sas_device->starget = NULL;
1290
1291 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1292
1293 out:
1294 kfree(sas_target_priv_data);
1295 starget->hostdata = NULL;
1296 }
1297
1298 /**
1299 * _scsih_slave_alloc - device add routine
1300 * @sdev: scsi device struct
1301 *
1302 * Returns 0 if ok. Any other return is assumed to be an error and
1303 * the device is ignored.
1304 */
1305 static int
1306 _scsih_slave_alloc(struct scsi_device *sdev)
1307 {
1308 struct Scsi_Host *shost;
1309 struct MPT2SAS_ADAPTER *ioc;
1310 struct MPT2SAS_TARGET *sas_target_priv_data;
1311 struct MPT2SAS_DEVICE *sas_device_priv_data;
1312 struct scsi_target *starget;
1313 struct _raid_device *raid_device;
1314 unsigned long flags;
1315
1316 sas_device_priv_data = kzalloc(sizeof(struct scsi_device), GFP_KERNEL);
1317 if (!sas_device_priv_data)
1318 return -ENOMEM;
1319
1320 sas_device_priv_data->lun = sdev->lun;
1321 sas_device_priv_data->flags = MPT_DEVICE_FLAGS_INIT;
1322
1323 starget = scsi_target(sdev);
1324 sas_target_priv_data = starget->hostdata;
1325 sas_target_priv_data->num_luns++;
1326 sas_device_priv_data->sas_target = sas_target_priv_data;
1327 sdev->hostdata = sas_device_priv_data;
1328 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT))
1329 sdev->no_uld_attach = 1;
1330
1331 shost = dev_to_shost(&starget->dev);
1332 ioc = shost_priv(shost);
1333 if (starget->channel == RAID_CHANNEL) {
1334 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1335 raid_device = _scsih_raid_device_find_by_id(ioc,
1336 starget->id, starget->channel);
1337 if (raid_device)
1338 raid_device->sdev = sdev; /* raid is single lun */
1339 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1340 }
1341
1342 return 0;
1343 }
1344
1345 /**
1346 * _scsih_slave_destroy - device destroy routine
1347 * @sdev: scsi device struct
1348 *
1349 * Returns nothing.
1350 */
1351 static void
1352 _scsih_slave_destroy(struct scsi_device *sdev)
1353 {
1354 struct MPT2SAS_TARGET *sas_target_priv_data;
1355 struct scsi_target *starget;
1356
1357 if (!sdev->hostdata)
1358 return;
1359
1360 starget = scsi_target(sdev);
1361 sas_target_priv_data = starget->hostdata;
1362 sas_target_priv_data->num_luns--;
1363 kfree(sdev->hostdata);
1364 sdev->hostdata = NULL;
1365 }
1366
1367 /**
1368 * _scsih_display_sata_capabilities - sata capabilities
1369 * @ioc: per adapter object
1370 * @sas_device: the sas_device object
1371 * @sdev: scsi device struct
1372 */
1373 static void
1374 _scsih_display_sata_capabilities(struct MPT2SAS_ADAPTER *ioc,
1375 struct _sas_device *sas_device, struct scsi_device *sdev)
1376 {
1377 Mpi2ConfigReply_t mpi_reply;
1378 Mpi2SasDevicePage0_t sas_device_pg0;
1379 u32 ioc_status;
1380 u16 flags;
1381 u32 device_info;
1382
1383 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
1384 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, sas_device->handle))) {
1385 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1386 ioc->name, __FILE__, __LINE__, __func__);
1387 return;
1388 }
1389
1390 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1391 MPI2_IOCSTATUS_MASK;
1392 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
1393 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1394 ioc->name, __FILE__, __LINE__, __func__);
1395 return;
1396 }
1397
1398 flags = le16_to_cpu(sas_device_pg0.Flags);
1399 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
1400
1401 sdev_printk(KERN_INFO, sdev,
1402 "atapi(%s), ncq(%s), asyn_notify(%s), smart(%s), fua(%s), "
1403 "sw_preserve(%s)\n",
1404 (device_info & MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? "y" : "n",
1405 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED) ? "y" : "n",
1406 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY) ? "y" :
1407 "n",
1408 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SMART_SUPPORTED) ? "y" : "n",
1409 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED) ? "y" : "n",
1410 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SW_PRESERVE) ? "y" : "n");
1411 }
1412
1413 /**
1414 * _scsih_is_raid - return boolean indicating device is raid volume
1415 * @dev the device struct object
1416 */
1417 static int
1418 _scsih_is_raid(struct device *dev)
1419 {
1420 struct scsi_device *sdev = to_scsi_device(dev);
1421
1422 return (sdev->channel == RAID_CHANNEL) ? 1 : 0;
1423 }
1424
1425 /**
1426 * _scsih_get_resync - get raid volume resync percent complete
1427 * @dev the device struct object
1428 */
1429 static void
1430 _scsih_get_resync(struct device *dev)
1431 {
1432 struct scsi_device *sdev = to_scsi_device(dev);
1433 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
1434 static struct _raid_device *raid_device;
1435 unsigned long flags;
1436 Mpi2RaidVolPage0_t vol_pg0;
1437 Mpi2ConfigReply_t mpi_reply;
1438 u32 volume_status_flags;
1439 u8 percent_complete = 0;
1440
1441 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1442 raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
1443 sdev->channel);
1444 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1445
1446 if (!raid_device)
1447 goto out;
1448
1449 if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
1450 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle,
1451 sizeof(Mpi2RaidVolPage0_t))) {
1452 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1453 ioc->name, __FILE__, __LINE__, __func__);
1454 goto out;
1455 }
1456
1457 volume_status_flags = le32_to_cpu(vol_pg0.VolumeStatusFlags);
1458 if (volume_status_flags & MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS)
1459 percent_complete = raid_device->percent_complete;
1460 out:
1461 raid_set_resync(mpt2sas_raid_template, dev, percent_complete);
1462 }
1463
1464 /**
1465 * _scsih_get_state - get raid volume level
1466 * @dev the device struct object
1467 */
1468 static void
1469 _scsih_get_state(struct device *dev)
1470 {
1471 struct scsi_device *sdev = to_scsi_device(dev);
1472 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
1473 static struct _raid_device *raid_device;
1474 unsigned long flags;
1475 Mpi2RaidVolPage0_t vol_pg0;
1476 Mpi2ConfigReply_t mpi_reply;
1477 u32 volstate;
1478 enum raid_state state = RAID_STATE_UNKNOWN;
1479
1480 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1481 raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
1482 sdev->channel);
1483 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1484
1485 if (!raid_device)
1486 goto out;
1487
1488 if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
1489 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle,
1490 sizeof(Mpi2RaidVolPage0_t))) {
1491 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1492 ioc->name, __FILE__, __LINE__, __func__);
1493 goto out;
1494 }
1495
1496 volstate = le32_to_cpu(vol_pg0.VolumeStatusFlags);
1497 if (volstate & MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS) {
1498 state = RAID_STATE_RESYNCING;
1499 goto out;
1500 }
1501
1502 switch (vol_pg0.VolumeState) {
1503 case MPI2_RAID_VOL_STATE_OPTIMAL:
1504 case MPI2_RAID_VOL_STATE_ONLINE:
1505 state = RAID_STATE_ACTIVE;
1506 break;
1507 case MPI2_RAID_VOL_STATE_DEGRADED:
1508 state = RAID_STATE_DEGRADED;
1509 break;
1510 case MPI2_RAID_VOL_STATE_FAILED:
1511 case MPI2_RAID_VOL_STATE_MISSING:
1512 state = RAID_STATE_OFFLINE;
1513 break;
1514 }
1515 out:
1516 raid_set_state(mpt2sas_raid_template, dev, state);
1517 }
1518
1519 /**
1520 * _scsih_set_level - set raid level
1521 * @sdev: scsi device struct
1522 * @raid_device: raid_device object
1523 */
1524 static void
1525 _scsih_set_level(struct scsi_device *sdev, struct _raid_device *raid_device)
1526 {
1527 enum raid_level level = RAID_LEVEL_UNKNOWN;
1528
1529 switch (raid_device->volume_type) {
1530 case MPI2_RAID_VOL_TYPE_RAID0:
1531 level = RAID_LEVEL_0;
1532 break;
1533 case MPI2_RAID_VOL_TYPE_RAID10:
1534 level = RAID_LEVEL_10;
1535 break;
1536 case MPI2_RAID_VOL_TYPE_RAID1E:
1537 level = RAID_LEVEL_1E;
1538 break;
1539 case MPI2_RAID_VOL_TYPE_RAID1:
1540 level = RAID_LEVEL_1;
1541 break;
1542 }
1543
1544 raid_set_level(mpt2sas_raid_template, &sdev->sdev_gendev, level);
1545 }
1546
1547 /**
1548 * _scsih_get_volume_capabilities - volume capabilities
1549 * @ioc: per adapter object
1550 * @sas_device: the raid_device object
1551 */
1552 static void
1553 _scsih_get_volume_capabilities(struct MPT2SAS_ADAPTER *ioc,
1554 struct _raid_device *raid_device)
1555 {
1556 Mpi2RaidVolPage0_t *vol_pg0;
1557 Mpi2RaidPhysDiskPage0_t pd_pg0;
1558 Mpi2SasDevicePage0_t sas_device_pg0;
1559 Mpi2ConfigReply_t mpi_reply;
1560 u16 sz;
1561 u8 num_pds;
1562
1563 if ((mpt2sas_config_get_number_pds(ioc, raid_device->handle,
1564 &num_pds)) || !num_pds) {
1565 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1566 ioc->name, __FILE__, __LINE__, __func__);
1567 return;
1568 }
1569
1570 raid_device->num_pds = num_pds;
1571 sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
1572 sizeof(Mpi2RaidVol0PhysDisk_t));
1573 vol_pg0 = kzalloc(sz, GFP_KERNEL);
1574 if (!vol_pg0) {
1575 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1576 ioc->name, __FILE__, __LINE__, __func__);
1577 return;
1578 }
1579
1580 if ((mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
1581 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
1582 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1583 ioc->name, __FILE__, __LINE__, __func__);
1584 kfree(vol_pg0);
1585 return;
1586 }
1587
1588 raid_device->volume_type = vol_pg0->VolumeType;
1589
1590 /* figure out what the underlying devices are by
1591 * obtaining the device_info bits for the 1st device
1592 */
1593 if (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
1594 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
1595 vol_pg0->PhysDisk[0].PhysDiskNum))) {
1596 if (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
1597 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
1598 le16_to_cpu(pd_pg0.DevHandle)))) {
1599 raid_device->device_info =
1600 le32_to_cpu(sas_device_pg0.DeviceInfo);
1601 }
1602 }
1603
1604 kfree(vol_pg0);
1605 }
1606
1607 /**
1608 * _scsih_enable_tlr - setting TLR flags
1609 * @ioc: per adapter object
1610 * @sdev: scsi device struct
1611 *
1612 * Enabling Transaction Layer Retries for tape devices when
1613 * vpd page 0x90 is present
1614 *
1615 */
1616 static void
1617 _scsih_enable_tlr(struct MPT2SAS_ADAPTER *ioc, struct scsi_device *sdev)
1618 {
1619 /* only for TAPE */
1620 if (sdev->type != TYPE_TAPE)
1621 return;
1622
1623 if (!(ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR))
1624 return;
1625
1626 sas_enable_tlr(sdev);
1627 sdev_printk(KERN_INFO, sdev, "TLR %s\n",
1628 sas_is_tlr_enabled(sdev) ? "Enabled" : "Disabled");
1629 return;
1630
1631 }
1632
1633 /**
1634 * _scsih_slave_configure - device configure routine.
1635 * @sdev: scsi device struct
1636 *
1637 * Returns 0 if ok. Any other return is assumed to be an error and
1638 * the device is ignored.
1639 */
1640 static int
1641 _scsih_slave_configure(struct scsi_device *sdev)
1642 {
1643 struct Scsi_Host *shost = sdev->host;
1644 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1645 struct MPT2SAS_DEVICE *sas_device_priv_data;
1646 struct MPT2SAS_TARGET *sas_target_priv_data;
1647 struct _sas_device *sas_device;
1648 struct _raid_device *raid_device;
1649 unsigned long flags;
1650 int qdepth;
1651 u8 ssp_target = 0;
1652 char *ds = "";
1653 char *r_level = "";
1654
1655 qdepth = 1;
1656 sas_device_priv_data = sdev->hostdata;
1657 sas_device_priv_data->configured_lun = 1;
1658 sas_device_priv_data->flags &= ~MPT_DEVICE_FLAGS_INIT;
1659 sas_target_priv_data = sas_device_priv_data->sas_target;
1660
1661 /* raid volume handling */
1662 if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME) {
1663
1664 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1665 raid_device = _scsih_raid_device_find_by_handle(ioc,
1666 sas_target_priv_data->handle);
1667 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1668 if (!raid_device) {
1669 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1670 ioc->name, __FILE__, __LINE__, __func__);
1671 return 0;
1672 }
1673
1674 _scsih_get_volume_capabilities(ioc, raid_device);
1675
1676 /* RAID Queue Depth Support
1677 * IS volume = underlying qdepth of drive type, either
1678 * MPT2SAS_SAS_QUEUE_DEPTH or MPT2SAS_SATA_QUEUE_DEPTH
1679 * IM/IME/R10 = 128 (MPT2SAS_RAID_QUEUE_DEPTH)
1680 */
1681 if (raid_device->device_info &
1682 MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
1683 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
1684 ds = "SSP";
1685 } else {
1686 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
1687 if (raid_device->device_info &
1688 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1689 ds = "SATA";
1690 else
1691 ds = "STP";
1692 }
1693
1694 switch (raid_device->volume_type) {
1695 case MPI2_RAID_VOL_TYPE_RAID0:
1696 r_level = "RAID0";
1697 break;
1698 case MPI2_RAID_VOL_TYPE_RAID1E:
1699 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1700 if (ioc->manu_pg10.OEMIdentifier &&
1701 (ioc->manu_pg10.GenericFlags0 &
1702 MFG10_GF0_R10_DISPLAY) &&
1703 !(raid_device->num_pds % 2))
1704 r_level = "RAID10";
1705 else
1706 r_level = "RAID1E";
1707 break;
1708 case MPI2_RAID_VOL_TYPE_RAID1:
1709 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1710 r_level = "RAID1";
1711 break;
1712 case MPI2_RAID_VOL_TYPE_RAID10:
1713 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1714 r_level = "RAID10";
1715 break;
1716 case MPI2_RAID_VOL_TYPE_UNKNOWN:
1717 default:
1718 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1719 r_level = "RAIDX";
1720 break;
1721 }
1722
1723 sdev_printk(KERN_INFO, sdev, "%s: "
1724 "handle(0x%04x), wwid(0x%016llx), pd_count(%d), type(%s)\n",
1725 r_level, raid_device->handle,
1726 (unsigned long long)raid_device->wwid,
1727 raid_device->num_pds, ds);
1728 _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
1729 /* raid transport support */
1730 _scsih_set_level(sdev, raid_device);
1731 return 0;
1732 }
1733
1734 /* non-raid handling */
1735 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1736 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1737 sas_device_priv_data->sas_target->sas_address);
1738 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1739 if (sas_device) {
1740 if (sas_target_priv_data->flags &
1741 MPT_TARGET_FLAGS_RAID_COMPONENT) {
1742 mpt2sas_config_get_volume_handle(ioc,
1743 sas_device->handle, &sas_device->volume_handle);
1744 mpt2sas_config_get_volume_wwid(ioc,
1745 sas_device->volume_handle,
1746 &sas_device->volume_wwid);
1747 }
1748 if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
1749 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
1750 ssp_target = 1;
1751 ds = "SSP";
1752 } else {
1753 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
1754 if (sas_device->device_info &
1755 MPI2_SAS_DEVICE_INFO_STP_TARGET)
1756 ds = "STP";
1757 else if (sas_device->device_info &
1758 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1759 ds = "SATA";
1760 }
1761
1762 sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), "
1763 "sas_addr(0x%016llx), phy(%d), device_name(0x%016llx)\n",
1764 ds, sas_device->handle,
1765 (unsigned long long)sas_device->sas_address,
1766 sas_device->phy,
1767 (unsigned long long)sas_device->device_name);
1768 sdev_printk(KERN_INFO, sdev, "%s: "
1769 "enclosure_logical_id(0x%016llx), slot(%d)\n", ds,
1770 (unsigned long long) sas_device->enclosure_logical_id,
1771 sas_device->slot);
1772
1773 if (!ssp_target)
1774 _scsih_display_sata_capabilities(ioc, sas_device, sdev);
1775 }
1776
1777 _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
1778
1779 if (ssp_target) {
1780 sas_read_port_mode_page(sdev);
1781 _scsih_enable_tlr(ioc, sdev);
1782 }
1783 return 0;
1784 }
1785
1786 /**
1787 * _scsih_bios_param - fetch head, sector, cylinder info for a disk
1788 * @sdev: scsi device struct
1789 * @bdev: pointer to block device context
1790 * @capacity: device size (in 512 byte sectors)
1791 * @params: three element array to place output:
1792 * params[0] number of heads (max 255)
1793 * params[1] number of sectors (max 63)
1794 * params[2] number of cylinders
1795 *
1796 * Return nothing.
1797 */
1798 static int
1799 _scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev,
1800 sector_t capacity, int params[])
1801 {
1802 int heads;
1803 int sectors;
1804 sector_t cylinders;
1805 ulong dummy;
1806
1807 heads = 64;
1808 sectors = 32;
1809
1810 dummy = heads * sectors;
1811 cylinders = capacity;
1812 sector_div(cylinders, dummy);
1813
1814 /*
1815 * Handle extended translation size for logical drives
1816 * > 1Gb
1817 */
1818 if ((ulong)capacity >= 0x200000) {
1819 heads = 255;
1820 sectors = 63;
1821 dummy = heads * sectors;
1822 cylinders = capacity;
1823 sector_div(cylinders, dummy);
1824 }
1825
1826 /* return result */
1827 params[0] = heads;
1828 params[1] = sectors;
1829 params[2] = cylinders;
1830
1831 return 0;
1832 }
1833
1834 /**
1835 * _scsih_response_code - translation of device response code
1836 * @ioc: per adapter object
1837 * @response_code: response code returned by the device
1838 *
1839 * Return nothing.
1840 */
1841 static void
1842 _scsih_response_code(struct MPT2SAS_ADAPTER *ioc, u8 response_code)
1843 {
1844 char *desc;
1845
1846 switch (response_code) {
1847 case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE:
1848 desc = "task management request completed";
1849 break;
1850 case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME:
1851 desc = "invalid frame";
1852 break;
1853 case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
1854 desc = "task management request not supported";
1855 break;
1856 case MPI2_SCSITASKMGMT_RSP_TM_FAILED:
1857 desc = "task management request failed";
1858 break;
1859 case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED:
1860 desc = "task management request succeeded";
1861 break;
1862 case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN:
1863 desc = "invalid lun";
1864 break;
1865 case 0xA:
1866 desc = "overlapped tag attempted";
1867 break;
1868 case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
1869 desc = "task queued, however not sent to target";
1870 break;
1871 default:
1872 desc = "unknown";
1873 break;
1874 }
1875 printk(MPT2SAS_WARN_FMT "response_code(0x%01x): %s\n",
1876 ioc->name, response_code, desc);
1877 }
1878
1879 /**
1880 * _scsih_tm_done - tm completion routine
1881 * @ioc: per adapter object
1882 * @smid: system request message index
1883 * @msix_index: MSIX table index supplied by the OS
1884 * @reply: reply message frame(lower 32bit addr)
1885 * Context: none.
1886 *
1887 * The callback handler when using scsih_issue_tm.
1888 *
1889 * Return 1 meaning mf should be freed from _base_interrupt
1890 * 0 means the mf is freed from this function.
1891 */
1892 static u8
1893 _scsih_tm_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
1894 {
1895 MPI2DefaultReply_t *mpi_reply;
1896
1897 if (ioc->tm_cmds.status == MPT2_CMD_NOT_USED)
1898 return 1;
1899 if (ioc->tm_cmds.smid != smid)
1900 return 1;
1901 ioc->tm_cmds.status |= MPT2_CMD_COMPLETE;
1902 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
1903 if (mpi_reply) {
1904 memcpy(ioc->tm_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
1905 ioc->tm_cmds.status |= MPT2_CMD_REPLY_VALID;
1906 }
1907 ioc->tm_cmds.status &= ~MPT2_CMD_PENDING;
1908 complete(&ioc->tm_cmds.done);
1909 return 1;
1910 }
1911
1912 /**
1913 * mpt2sas_scsih_set_tm_flag - set per target tm_busy
1914 * @ioc: per adapter object
1915 * @handle: device handle
1916 *
1917 * During taskmangement request, we need to freeze the device queue.
1918 */
1919 void
1920 mpt2sas_scsih_set_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
1921 {
1922 struct MPT2SAS_DEVICE *sas_device_priv_data;
1923 struct scsi_device *sdev;
1924 u8 skip = 0;
1925
1926 shost_for_each_device(sdev, ioc->shost) {
1927 if (skip)
1928 continue;
1929 sas_device_priv_data = sdev->hostdata;
1930 if (!sas_device_priv_data)
1931 continue;
1932 if (sas_device_priv_data->sas_target->handle == handle) {
1933 sas_device_priv_data->sas_target->tm_busy = 1;
1934 skip = 1;
1935 ioc->ignore_loginfos = 1;
1936 }
1937 }
1938 }
1939
1940 /**
1941 * mpt2sas_scsih_clear_tm_flag - clear per target tm_busy
1942 * @ioc: per adapter object
1943 * @handle: device handle
1944 *
1945 * During taskmangement request, we need to freeze the device queue.
1946 */
1947 void
1948 mpt2sas_scsih_clear_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
1949 {
1950 struct MPT2SAS_DEVICE *sas_device_priv_data;
1951 struct scsi_device *sdev;
1952 u8 skip = 0;
1953
1954 shost_for_each_device(sdev, ioc->shost) {
1955 if (skip)
1956 continue;
1957 sas_device_priv_data = sdev->hostdata;
1958 if (!sas_device_priv_data)
1959 continue;
1960 if (sas_device_priv_data->sas_target->handle == handle) {
1961 sas_device_priv_data->sas_target->tm_busy = 0;
1962 skip = 1;
1963 ioc->ignore_loginfos = 0;
1964 }
1965 }
1966 }
1967
1968
1969 /**
1970 * mpt2sas_scsih_issue_tm - main routine for sending tm requests
1971 * @ioc: per adapter struct
1972 * @device_handle: device handle
1973 * @channel: the channel assigned by the OS
1974 * @id: the id assigned by the OS
1975 * @lun: lun number
1976 * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
1977 * @smid_task: smid assigned to the task
1978 * @timeout: timeout in seconds
1979 * Context: user
1980 *
1981 * A generic API for sending task management requests to firmware.
1982 *
1983 * The callback index is set inside `ioc->tm_cb_idx`.
1984 *
1985 * Return SUCCESS or FAILED.
1986 */
1987 int
1988 mpt2sas_scsih_issue_tm(struct MPT2SAS_ADAPTER *ioc, u16 handle, uint channel,
1989 uint id, uint lun, u8 type, u16 smid_task, ulong timeout,
1990 struct scsi_cmnd *scmd)
1991 {
1992 Mpi2SCSITaskManagementRequest_t *mpi_request;
1993 Mpi2SCSITaskManagementReply_t *mpi_reply;
1994 u16 smid = 0;
1995 u32 ioc_state;
1996 unsigned long timeleft;
1997 struct scsi_cmnd *scmd_lookup;
1998 int rc;
1999
2000 mutex_lock(&ioc->tm_cmds.mutex);
2001 if (ioc->tm_cmds.status != MPT2_CMD_NOT_USED) {
2002 printk(MPT2SAS_INFO_FMT "%s: tm_cmd busy!!!\n",
2003 __func__, ioc->name);
2004 rc = FAILED;
2005 goto err_out;
2006 }
2007
2008 if (ioc->shost_recovery || ioc->remove_host ||
2009 ioc->pci_error_recovery) {
2010 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
2011 __func__, ioc->name);
2012 rc = FAILED;
2013 goto err_out;
2014 }
2015
2016 ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
2017 if (ioc_state & MPI2_DOORBELL_USED) {
2018 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "unexpected doorbell "
2019 "active!\n", ioc->name));
2020 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2021 FORCE_BIG_HAMMER);
2022 rc = SUCCESS;
2023 goto err_out;
2024 }
2025
2026 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
2027 mpt2sas_base_fault_info(ioc, ioc_state &
2028 MPI2_DOORBELL_DATA_MASK);
2029 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2030 FORCE_BIG_HAMMER);
2031 rc = SUCCESS;
2032 goto err_out;
2033 }
2034
2035 smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_cb_idx);
2036 if (!smid) {
2037 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
2038 ioc->name, __func__);
2039 rc = FAILED;
2040 goto err_out;
2041 }
2042
2043 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "sending tm: handle(0x%04x),"
2044 " task_type(0x%02x), smid(%d)\n", ioc->name, handle, type,
2045 smid_task));
2046 ioc->tm_cmds.status = MPT2_CMD_PENDING;
2047 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
2048 ioc->tm_cmds.smid = smid;
2049 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
2050 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
2051 mpi_request->DevHandle = cpu_to_le16(handle);
2052 mpi_request->TaskType = type;
2053 mpi_request->TaskMID = cpu_to_le16(smid_task);
2054 int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN);
2055 mpt2sas_scsih_set_tm_flag(ioc, handle);
2056 init_completion(&ioc->tm_cmds.done);
2057 mpt2sas_base_put_smid_hi_priority(ioc, smid);
2058 timeleft = wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
2059 if (!(ioc->tm_cmds.status & MPT2_CMD_COMPLETE)) {
2060 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
2061 ioc->name, __func__);
2062 _debug_dump_mf(mpi_request,
2063 sizeof(Mpi2SCSITaskManagementRequest_t)/4);
2064 if (!(ioc->tm_cmds.status & MPT2_CMD_RESET)) {
2065 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2066 FORCE_BIG_HAMMER);
2067 rc = SUCCESS;
2068 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
2069 mpt2sas_scsih_clear_tm_flag(ioc, handle);
2070 goto err_out;
2071 }
2072 }
2073
2074 if (ioc->tm_cmds.status & MPT2_CMD_REPLY_VALID) {
2075 mpi_reply = ioc->tm_cmds.reply;
2076 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "complete tm: "
2077 "ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n",
2078 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
2079 le32_to_cpu(mpi_reply->IOCLogInfo),
2080 le32_to_cpu(mpi_reply->TerminationCount)));
2081 if (ioc->logging_level & MPT_DEBUG_TM) {
2082 _scsih_response_code(ioc, mpi_reply->ResponseCode);
2083 if (mpi_reply->IOCStatus)
2084 _debug_dump_mf(mpi_request,
2085 sizeof(Mpi2SCSITaskManagementRequest_t)/4);
2086 }
2087 }
2088
2089 /* sanity check:
2090 * Check to see the commands were terminated.
2091 * This is only needed for eh callbacks, hence the scmd check.
2092 */
2093 rc = FAILED;
2094 if (scmd == NULL)
2095 goto bypass_sanity_checks;
2096 switch (type) {
2097 case MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
2098 scmd_lookup = _scsih_scsi_lookup_get(ioc, smid_task);
2099 if (scmd_lookup && (scmd_lookup->serial_number ==
2100 scmd->serial_number))
2101 rc = FAILED;
2102 else
2103 rc = SUCCESS;
2104 break;
2105
2106 case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
2107 if (_scsih_scsi_lookup_find_by_target(ioc, id, channel))
2108 rc = FAILED;
2109 else
2110 rc = SUCCESS;
2111 break;
2112
2113 case MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET:
2114 if (_scsih_scsi_lookup_find_by_lun(ioc, id, lun, channel))
2115 rc = FAILED;
2116 else
2117 rc = SUCCESS;
2118 break;
2119 }
2120
2121 bypass_sanity_checks:
2122
2123 mpt2sas_scsih_clear_tm_flag(ioc, handle);
2124 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
2125 mutex_unlock(&ioc->tm_cmds.mutex);
2126
2127 return rc;
2128
2129 err_out:
2130 mutex_unlock(&ioc->tm_cmds.mutex);
2131 return rc;
2132 }
2133
2134 /**
2135 * _scsih_tm_display_info - displays info about the device
2136 * @ioc: per adapter struct
2137 * @scmd: pointer to scsi command object
2138 *
2139 * Called by task management callback handlers.
2140 */
2141 static void
2142 _scsih_tm_display_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd)
2143 {
2144 struct scsi_target *starget = scmd->device->sdev_target;
2145 struct MPT2SAS_TARGET *priv_target = starget->hostdata;
2146 struct _sas_device *sas_device = NULL;
2147 unsigned long flags;
2148
2149 if (!priv_target)
2150 return;
2151
2152 scsi_print_command(scmd);
2153 if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
2154 starget_printk(KERN_INFO, starget, "volume handle(0x%04x), "
2155 "volume wwid(0x%016llx)\n",
2156 priv_target->handle,
2157 (unsigned long long)priv_target->sas_address);
2158 } else {
2159 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2160 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
2161 priv_target->sas_address);
2162 if (sas_device) {
2163 if (priv_target->flags &
2164 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2165 starget_printk(KERN_INFO, starget,
2166 "volume handle(0x%04x), "
2167 "volume wwid(0x%016llx)\n",
2168 sas_device->volume_handle,
2169 (unsigned long long)sas_device->volume_wwid);
2170 }
2171 starget_printk(KERN_INFO, starget,
2172 "handle(0x%04x), sas_address(0x%016llx), phy(%d)\n",
2173 sas_device->handle,
2174 (unsigned long long)sas_device->sas_address,
2175 sas_device->phy);
2176 starget_printk(KERN_INFO, starget,
2177 "enclosure_logical_id(0x%016llx), slot(%d)\n",
2178 (unsigned long long)sas_device->enclosure_logical_id,
2179 sas_device->slot);
2180 }
2181 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2182 }
2183 }
2184
2185 /**
2186 * _scsih_abort - eh threads main abort routine
2187 * @scmd: pointer to scsi command object
2188 *
2189 * Returns SUCCESS if command aborted else FAILED
2190 */
2191 static int
2192 _scsih_abort(struct scsi_cmnd *scmd)
2193 {
2194 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2195 struct MPT2SAS_DEVICE *sas_device_priv_data;
2196 u16 smid;
2197 u16 handle;
2198 int r;
2199
2200 sdev_printk(KERN_INFO, scmd->device, "attempting task abort! "
2201 "scmd(%p)\n", scmd);
2202 _scsih_tm_display_info(ioc, scmd);
2203
2204 sas_device_priv_data = scmd->device->hostdata;
2205 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2206 sdev_printk(KERN_INFO, scmd->device, "device been deleted! "
2207 "scmd(%p)\n", scmd);
2208 scmd->result = DID_NO_CONNECT << 16;
2209 scmd->scsi_done(scmd);
2210 r = SUCCESS;
2211 goto out;
2212 }
2213
2214 /* search for the command */
2215 smid = _scsih_scsi_lookup_find_by_scmd(ioc, scmd);
2216 if (!smid) {
2217 scmd->result = DID_RESET << 16;
2218 r = SUCCESS;
2219 goto out;
2220 }
2221
2222 /* for hidden raid components and volumes this is not supported */
2223 if (sas_device_priv_data->sas_target->flags &
2224 MPT_TARGET_FLAGS_RAID_COMPONENT ||
2225 sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_VOLUME) {
2226 scmd->result = DID_RESET << 16;
2227 r = FAILED;
2228 goto out;
2229 }
2230
2231 mpt2sas_halt_firmware(ioc);
2232
2233 handle = sas_device_priv_data->sas_target->handle;
2234 r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2235 scmd->device->id, scmd->device->lun,
2236 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30, scmd);
2237
2238 out:
2239 sdev_printk(KERN_INFO, scmd->device, "task abort: %s scmd(%p)\n",
2240 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2241 return r;
2242 }
2243
2244 /**
2245 * _scsih_dev_reset - eh threads main device reset routine
2246 * @scmd: pointer to scsi command object
2247 *
2248 * Returns SUCCESS if command aborted else FAILED
2249 */
2250 static int
2251 _scsih_dev_reset(struct scsi_cmnd *scmd)
2252 {
2253 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2254 struct MPT2SAS_DEVICE *sas_device_priv_data;
2255 struct _sas_device *sas_device;
2256 unsigned long flags;
2257 u16 handle;
2258 int r;
2259
2260 struct scsi_target *starget = scmd->device->sdev_target;
2261
2262 starget_printk(KERN_INFO, starget, "attempting target reset! "
2263 "scmd(%p)\n", scmd);
2264 _scsih_tm_display_info(ioc, scmd);
2265
2266 sas_device_priv_data = scmd->device->hostdata;
2267 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2268 starget_printk(KERN_INFO, starget, "target been deleted! "
2269 "scmd(%p)\n", scmd);
2270 scmd->result = DID_NO_CONNECT << 16;
2271 scmd->scsi_done(scmd);
2272 r = SUCCESS;
2273 goto out;
2274 }
2275
2276 /* for hidden raid components obtain the volume_handle */
2277 handle = 0;
2278 if (sas_device_priv_data->sas_target->flags &
2279 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2280 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2281 sas_device = _scsih_sas_device_find_by_handle(ioc,
2282 sas_device_priv_data->sas_target->handle);
2283 if (sas_device)
2284 handle = sas_device->volume_handle;
2285 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2286 } else
2287 handle = sas_device_priv_data->sas_target->handle;
2288
2289 if (!handle) {
2290 scmd->result = DID_RESET << 16;
2291 r = FAILED;
2292 goto out;
2293 }
2294
2295 r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2296 scmd->device->id, scmd->device->lun,
2297 MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 30, scmd);
2298
2299 out:
2300 sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n",
2301 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2302 return r;
2303 }
2304
2305 /**
2306 * _scsih_target_reset - eh threads main target reset routine
2307 * @scmd: pointer to scsi command object
2308 *
2309 * Returns SUCCESS if command aborted else FAILED
2310 */
2311 static int
2312 _scsih_target_reset(struct scsi_cmnd *scmd)
2313 {
2314 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2315 struct MPT2SAS_DEVICE *sas_device_priv_data;
2316 struct _sas_device *sas_device;
2317 unsigned long flags;
2318 u16 handle;
2319 int r;
2320 struct scsi_target *starget = scmd->device->sdev_target;
2321
2322 starget_printk(KERN_INFO, starget, "attempting target reset! "
2323 "scmd(%p)\n", scmd);
2324 _scsih_tm_display_info(ioc, scmd);
2325
2326 sas_device_priv_data = scmd->device->hostdata;
2327 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2328 starget_printk(KERN_INFO, starget, "target been deleted! "
2329 "scmd(%p)\n", scmd);
2330 scmd->result = DID_NO_CONNECT << 16;
2331 scmd->scsi_done(scmd);
2332 r = SUCCESS;
2333 goto out;
2334 }
2335
2336 /* for hidden raid components obtain the volume_handle */
2337 handle = 0;
2338 if (sas_device_priv_data->sas_target->flags &
2339 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2340 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2341 sas_device = _scsih_sas_device_find_by_handle(ioc,
2342 sas_device_priv_data->sas_target->handle);
2343 if (sas_device)
2344 handle = sas_device->volume_handle;
2345 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2346 } else
2347 handle = sas_device_priv_data->sas_target->handle;
2348
2349 if (!handle) {
2350 scmd->result = DID_RESET << 16;
2351 r = FAILED;
2352 goto out;
2353 }
2354
2355 r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2356 scmd->device->id, 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
2357 30, scmd);
2358
2359 out:
2360 starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n",
2361 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2362 return r;
2363 }
2364
2365 /**
2366 * _scsih_host_reset - eh threads main host reset routine
2367 * @scmd: pointer to scsi command object
2368 *
2369 * Returns SUCCESS if command aborted else FAILED
2370 */
2371 static int
2372 _scsih_host_reset(struct scsi_cmnd *scmd)
2373 {
2374 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2375 int r, retval;
2376
2377 printk(MPT2SAS_INFO_FMT "attempting host reset! scmd(%p)\n",
2378 ioc->name, scmd);
2379 scsi_print_command(scmd);
2380
2381 retval = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2382 FORCE_BIG_HAMMER);
2383 r = (retval < 0) ? FAILED : SUCCESS;
2384 printk(MPT2SAS_INFO_FMT "host reset: %s scmd(%p)\n",
2385 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2386
2387 return r;
2388 }
2389
2390 /**
2391 * _scsih_fw_event_add - insert and queue up fw_event
2392 * @ioc: per adapter object
2393 * @fw_event: object describing the event
2394 * Context: This function will acquire ioc->fw_event_lock.
2395 *
2396 * This adds the firmware event object into link list, then queues it up to
2397 * be processed from user context.
2398 *
2399 * Return nothing.
2400 */
2401 static void
2402 _scsih_fw_event_add(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
2403 {
2404 unsigned long flags;
2405
2406 if (ioc->firmware_event_thread == NULL)
2407 return;
2408
2409 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2410 list_add_tail(&fw_event->list, &ioc->fw_event_list);
2411 INIT_DELAYED_WORK(&fw_event->delayed_work, _firmware_event_work);
2412 queue_delayed_work(ioc->firmware_event_thread,
2413 &fw_event->delayed_work, 0);
2414 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2415 }
2416
2417 /**
2418 * _scsih_fw_event_free - delete fw_event
2419 * @ioc: per adapter object
2420 * @fw_event: object describing the event
2421 * Context: This function will acquire ioc->fw_event_lock.
2422 *
2423 * This removes firmware event object from link list, frees associated memory.
2424 *
2425 * Return nothing.
2426 */
2427 static void
2428 _scsih_fw_event_free(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
2429 *fw_event)
2430 {
2431 unsigned long flags;
2432
2433 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2434 list_del(&fw_event->list);
2435 kfree(fw_event->event_data);
2436 kfree(fw_event);
2437 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2438 }
2439
2440
2441 /**
2442 * _scsih_queue_rescan - queue a topology rescan from user context
2443 * @ioc: per adapter object
2444 *
2445 * Return nothing.
2446 */
2447 static void
2448 _scsih_queue_rescan(struct MPT2SAS_ADAPTER *ioc)
2449 {
2450 struct fw_event_work *fw_event;
2451
2452 if (ioc->wait_for_port_enable_to_complete)
2453 return;
2454 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
2455 if (!fw_event)
2456 return;
2457 fw_event->event = MPT2SAS_RESCAN_AFTER_HOST_RESET;
2458 fw_event->ioc = ioc;
2459 _scsih_fw_event_add(ioc, fw_event);
2460 }
2461
2462 /**
2463 * _scsih_fw_event_cleanup_queue - cleanup event queue
2464 * @ioc: per adapter object
2465 *
2466 * Walk the firmware event queue, either killing timers, or waiting
2467 * for outstanding events to complete
2468 *
2469 * Return nothing.
2470 */
2471 static void
2472 _scsih_fw_event_cleanup_queue(struct MPT2SAS_ADAPTER *ioc)
2473 {
2474 struct fw_event_work *fw_event, *next;
2475
2476 if (list_empty(&ioc->fw_event_list) ||
2477 !ioc->firmware_event_thread || in_interrupt())
2478 return;
2479
2480 list_for_each_entry_safe(fw_event, next, &ioc->fw_event_list, list) {
2481 if (cancel_delayed_work(&fw_event->delayed_work)) {
2482 _scsih_fw_event_free(ioc, fw_event);
2483 continue;
2484 }
2485 fw_event->cancel_pending_work = 1;
2486 }
2487 }
2488
2489 /**
2490 * _scsih_ublock_io_device - set the device state to SDEV_RUNNING
2491 * @ioc: per adapter object
2492 * @handle: device handle
2493 *
2494 * During device pull we need to appropiately set the sdev state.
2495 */
2496 static void
2497 _scsih_ublock_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2498 {
2499 struct MPT2SAS_DEVICE *sas_device_priv_data;
2500 struct scsi_device *sdev;
2501
2502 shost_for_each_device(sdev, ioc->shost) {
2503 sas_device_priv_data = sdev->hostdata;
2504 if (!sas_device_priv_data)
2505 continue;
2506 if (!sas_device_priv_data->block)
2507 continue;
2508 if (sas_device_priv_data->sas_target->handle == handle) {
2509 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2510 MPT2SAS_INFO_FMT "SDEV_RUNNING: "
2511 "handle(0x%04x)\n", ioc->name, handle));
2512 sas_device_priv_data->block = 0;
2513 scsi_internal_device_unblock(sdev);
2514 }
2515 }
2516 }
2517
2518 /**
2519 * _scsih_block_io_device - set the device state to SDEV_BLOCK
2520 * @ioc: per adapter object
2521 * @handle: device handle
2522 *
2523 * During device pull we need to appropiately set the sdev state.
2524 */
2525 static void
2526 _scsih_block_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2527 {
2528 struct MPT2SAS_DEVICE *sas_device_priv_data;
2529 struct scsi_device *sdev;
2530
2531 shost_for_each_device(sdev, ioc->shost) {
2532 sas_device_priv_data = sdev->hostdata;
2533 if (!sas_device_priv_data)
2534 continue;
2535 if (sas_device_priv_data->block)
2536 continue;
2537 if (sas_device_priv_data->sas_target->handle == handle) {
2538 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2539 MPT2SAS_INFO_FMT "SDEV_BLOCK: "
2540 "handle(0x%04x)\n", ioc->name, handle));
2541 sas_device_priv_data->block = 1;
2542 scsi_internal_device_block(sdev);
2543 }
2544 }
2545 }
2546
2547 /**
2548 * _scsih_block_io_to_children_attached_to_ex
2549 * @ioc: per adapter object
2550 * @sas_expander: the sas_device object
2551 *
2552 * This routine set sdev state to SDEV_BLOCK for all devices
2553 * attached to this expander. This function called when expander is
2554 * pulled.
2555 */
2556 static void
2557 _scsih_block_io_to_children_attached_to_ex(struct MPT2SAS_ADAPTER *ioc,
2558 struct _sas_node *sas_expander)
2559 {
2560 struct _sas_port *mpt2sas_port;
2561 struct _sas_device *sas_device;
2562 struct _sas_node *expander_sibling;
2563 unsigned long flags;
2564
2565 if (!sas_expander)
2566 return;
2567
2568 list_for_each_entry(mpt2sas_port,
2569 &sas_expander->sas_port_list, port_list) {
2570 if (mpt2sas_port->remote_identify.device_type ==
2571 SAS_END_DEVICE) {
2572 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2573 sas_device =
2574 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
2575 mpt2sas_port->remote_identify.sas_address);
2576 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2577 if (!sas_device)
2578 continue;
2579 _scsih_block_io_device(ioc, sas_device->handle);
2580 }
2581 }
2582
2583 list_for_each_entry(mpt2sas_port,
2584 &sas_expander->sas_port_list, port_list) {
2585
2586 if (mpt2sas_port->remote_identify.device_type ==
2587 SAS_EDGE_EXPANDER_DEVICE ||
2588 mpt2sas_port->remote_identify.device_type ==
2589 SAS_FANOUT_EXPANDER_DEVICE) {
2590
2591 spin_lock_irqsave(&ioc->sas_node_lock, flags);
2592 expander_sibling =
2593 mpt2sas_scsih_expander_find_by_sas_address(
2594 ioc, mpt2sas_port->remote_identify.sas_address);
2595 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
2596 _scsih_block_io_to_children_attached_to_ex(ioc,
2597 expander_sibling);
2598 }
2599 }
2600 }
2601
2602 /**
2603 * _scsih_block_io_to_children_attached_directly
2604 * @ioc: per adapter object
2605 * @event_data: topology change event data
2606 *
2607 * This routine set sdev state to SDEV_BLOCK for all devices
2608 * direct attached during device pull.
2609 */
2610 static void
2611 _scsih_block_io_to_children_attached_directly(struct MPT2SAS_ADAPTER *ioc,
2612 Mpi2EventDataSasTopologyChangeList_t *event_data)
2613 {
2614 int i;
2615 u16 handle;
2616 u16 reason_code;
2617 u8 phy_number;
2618
2619 for (i = 0; i < event_data->NumEntries; i++) {
2620 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
2621 if (!handle)
2622 continue;
2623 phy_number = event_data->StartPhyNum + i;
2624 reason_code = event_data->PHY[i].PhyStatus &
2625 MPI2_EVENT_SAS_TOPO_RC_MASK;
2626 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING)
2627 _scsih_block_io_device(ioc, handle);
2628 }
2629 }
2630
2631 /**
2632 * _scsih_tm_tr_send - send task management request
2633 * @ioc: per adapter object
2634 * @handle: device handle
2635 * Context: interrupt time.
2636 *
2637 * This code is to initiate the device removal handshake protocal
2638 * with controller firmware. This function will issue target reset
2639 * using high priority request queue. It will send a sas iounit
2640 * controll request (MPI2_SAS_OP_REMOVE_DEVICE) from this completion.
2641 *
2642 * This is designed to send muliple task management request at the same
2643 * time to the fifo. If the fifo is full, we will append the request,
2644 * and process it in a future completion.
2645 */
2646 static void
2647 _scsih_tm_tr_send(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2648 {
2649 Mpi2SCSITaskManagementRequest_t *mpi_request;
2650 u16 smid;
2651 struct _sas_device *sas_device;
2652 struct MPT2SAS_TARGET *sas_target_priv_data;
2653 unsigned long flags;
2654 struct _tr_list *delayed_tr;
2655
2656 if (ioc->shost_recovery || ioc->remove_host ||
2657 ioc->pci_error_recovery) {
2658 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
2659 "progress!\n", __func__, ioc->name));
2660 return;
2661 }
2662
2663 /* if PD, then return */
2664 if (test_bit(handle, ioc->pd_handles))
2665 return;
2666
2667 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2668 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
2669 if (sas_device && sas_device->starget &&
2670 sas_device->starget->hostdata) {
2671 sas_target_priv_data = sas_device->starget->hostdata;
2672 sas_target_priv_data->deleted = 1;
2673 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
2674 "setting delete flag: handle(0x%04x), "
2675 "sas_addr(0x%016llx)\n", ioc->name, handle,
2676 (unsigned long long) sas_device->sas_address));
2677 }
2678 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2679
2680 smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_tr_cb_idx);
2681 if (!smid) {
2682 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
2683 if (!delayed_tr)
2684 return;
2685 INIT_LIST_HEAD(&delayed_tr->list);
2686 delayed_tr->handle = handle;
2687 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
2688 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
2689 "DELAYED:tr:handle(0x%04x), (open)\n",
2690 ioc->name, handle));
2691 return;
2692 }
2693
2694 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "tr_send:handle(0x%04x), "
2695 "(open), smid(%d), cb(%d)\n", ioc->name, handle, smid,
2696 ioc->tm_tr_cb_idx));
2697 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
2698 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
2699 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
2700 mpi_request->DevHandle = cpu_to_le16(handle);
2701 mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
2702 mpt2sas_base_put_smid_hi_priority(ioc, smid);
2703 }
2704
2705
2706
2707 /**
2708 * _scsih_sas_control_complete - completion routine
2709 * @ioc: per adapter object
2710 * @smid: system request message index
2711 * @msix_index: MSIX table index supplied by the OS
2712 * @reply: reply message frame(lower 32bit addr)
2713 * Context: interrupt time.
2714 *
2715 * This is the sas iounit controll completion routine.
2716 * This code is part of the code to initiate the device removal
2717 * handshake protocal with controller firmware.
2718 *
2719 * Return 1 meaning mf should be freed from _base_interrupt
2720 * 0 means the mf is freed from this function.
2721 */
2722 static u8
2723 _scsih_sas_control_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid,
2724 u8 msix_index, u32 reply)
2725 {
2726 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
2727 Mpi2SasIoUnitControlReply_t *mpi_reply =
2728 mpt2sas_base_get_reply_virt_addr(ioc, reply);
2729 #endif
2730 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
2731 "sc_complete:handle(0x%04x), (open) "
2732 "smid(%d), ioc_status(0x%04x), loginfo(0x%08x)\n",
2733 ioc->name, le16_to_cpu(mpi_reply->DevHandle), smid,
2734 le16_to_cpu(mpi_reply->IOCStatus),
2735 le32_to_cpu(mpi_reply->IOCLogInfo)));
2736 return 1;
2737 }
2738
2739 /**
2740 * _scsih_tm_tr_volume_send - send target reset request for volumes
2741 * @ioc: per adapter object
2742 * @handle: device handle
2743 * Context: interrupt time.
2744 *
2745 * This is designed to send muliple task management request at the same
2746 * time to the fifo. If the fifo is full, we will append the request,
2747 * and process it in a future completion.
2748 */
2749 static void
2750 _scsih_tm_tr_volume_send(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2751 {
2752 Mpi2SCSITaskManagementRequest_t *mpi_request;
2753 u16 smid;
2754 struct _tr_list *delayed_tr;
2755
2756 if (ioc->shost_recovery || ioc->remove_host ||
2757 ioc->pci_error_recovery) {
2758 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
2759 "progress!\n", __func__, ioc->name));
2760 return;
2761 }
2762
2763 smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_tr_volume_cb_idx);
2764 if (!smid) {
2765 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
2766 if (!delayed_tr)
2767 return;
2768 INIT_LIST_HEAD(&delayed_tr->list);
2769 delayed_tr->handle = handle;
2770 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_volume_list);
2771 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
2772 "DELAYED:tr:handle(0x%04x), (open)\n",
2773 ioc->name, handle));
2774 return;
2775 }
2776
2777 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "tr_send:handle(0x%04x), "
2778 "(open), smid(%d), cb(%d)\n", ioc->name, handle, smid,
2779 ioc->tm_tr_volume_cb_idx));
2780 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
2781 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
2782 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
2783 mpi_request->DevHandle = cpu_to_le16(handle);
2784 mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
2785 mpt2sas_base_put_smid_hi_priority(ioc, smid);
2786 }
2787
2788 /**
2789 * _scsih_tm_volume_tr_complete - target reset completion
2790 * @ioc: per adapter object
2791 * @smid: system request message index
2792 * @msix_index: MSIX table index supplied by the OS
2793 * @reply: reply message frame(lower 32bit addr)
2794 * Context: interrupt time.
2795 *
2796 * Return 1 meaning mf should be freed from _base_interrupt
2797 * 0 means the mf is freed from this function.
2798 */
2799 static u8
2800 _scsih_tm_volume_tr_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid,
2801 u8 msix_index, u32 reply)
2802 {
2803 u16 handle;
2804 Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
2805 Mpi2SCSITaskManagementReply_t *mpi_reply =
2806 mpt2sas_base_get_reply_virt_addr(ioc, reply);
2807
2808 if (ioc->shost_recovery || ioc->remove_host ||
2809 ioc->pci_error_recovery) {
2810 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
2811 "progress!\n", __func__, ioc->name));
2812 return 1;
2813 }
2814
2815 mpi_request_tm = mpt2sas_base_get_msg_frame(ioc, smid);
2816 handle = le16_to_cpu(mpi_request_tm->DevHandle);
2817 if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
2818 dewtprintk(ioc, printk("spurious interrupt: "
2819 "handle(0x%04x:0x%04x), smid(%d)!!!\n", handle,
2820 le16_to_cpu(mpi_reply->DevHandle), smid));
2821 return 0;
2822 }
2823
2824 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
2825 "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
2826 "loginfo(0x%08x), completed(%d)\n", ioc->name,
2827 handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
2828 le32_to_cpu(mpi_reply->IOCLogInfo),
2829 le32_to_cpu(mpi_reply->TerminationCount)));
2830
2831 return _scsih_check_for_pending_tm(ioc, smid);
2832 }
2833
2834 /**
2835 * _scsih_tm_tr_complete -
2836 * @ioc: per adapter object
2837 * @smid: system request message index
2838 * @msix_index: MSIX table index supplied by the OS
2839 * @reply: reply message frame(lower 32bit addr)
2840 * Context: interrupt time.
2841 *
2842 * This is the target reset completion routine.
2843 * This code is part of the code to initiate the device removal
2844 * handshake protocal with controller firmware.
2845 * It will send a sas iounit controll request (MPI2_SAS_OP_REMOVE_DEVICE)
2846 *
2847 * Return 1 meaning mf should be freed from _base_interrupt
2848 * 0 means the mf is freed from this function.
2849 */
2850 static u8
2851 _scsih_tm_tr_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
2852 u32 reply)
2853 {
2854 u16 handle;
2855 Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
2856 Mpi2SCSITaskManagementReply_t *mpi_reply =
2857 mpt2sas_base_get_reply_virt_addr(ioc, reply);
2858 Mpi2SasIoUnitControlRequest_t *mpi_request;
2859 u16 smid_sas_ctrl;
2860
2861 if (ioc->shost_recovery || ioc->remove_host ||
2862 ioc->pci_error_recovery) {
2863 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
2864 "progress!\n", __func__, ioc->name));
2865 return 1;
2866 }
2867
2868 mpi_request_tm = mpt2sas_base_get_msg_frame(ioc, smid);
2869 handle = le16_to_cpu(mpi_request_tm->DevHandle);
2870 if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
2871 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "spurious interrupt: "
2872 "handle(0x%04x:0x%04x), smid(%d)!!!\n", ioc->name, handle,
2873 le16_to_cpu(mpi_reply->DevHandle), smid));
2874 return 0;
2875 }
2876
2877 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
2878 "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
2879 "loginfo(0x%08x), completed(%d)\n", ioc->name,
2880 handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
2881 le32_to_cpu(mpi_reply->IOCLogInfo),
2882 le32_to_cpu(mpi_reply->TerminationCount)));
2883
2884 smid_sas_ctrl = mpt2sas_base_get_smid(ioc, ioc->tm_sas_control_cb_idx);
2885 if (!smid_sas_ctrl) {
2886 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
2887 ioc->name, __func__);
2888 return 1;
2889 }
2890
2891 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sc_send:handle(0x%04x), "
2892 "(open), smid(%d), cb(%d)\n", ioc->name, handle, smid_sas_ctrl,
2893 ioc->tm_sas_control_cb_idx));
2894 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid_sas_ctrl);
2895 memset(mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
2896 mpi_request->Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
2897 mpi_request->Operation = MPI2_SAS_OP_REMOVE_DEVICE;
2898 mpi_request->DevHandle = mpi_request_tm->DevHandle;
2899 mpt2sas_base_put_smid_default(ioc, smid_sas_ctrl);
2900
2901 return _scsih_check_for_pending_tm(ioc, smid);
2902 }
2903
2904 /**
2905 * _scsih_check_for_pending_tm - check for pending task management
2906 * @ioc: per adapter object
2907 * @smid: system request message index
2908 *
2909 * This will check delayed target reset list, and feed the
2910 * next reqeust.
2911 *
2912 * Return 1 meaning mf should be freed from _base_interrupt
2913 * 0 means the mf is freed from this function.
2914 */
2915 static u8
2916 _scsih_check_for_pending_tm(struct MPT2SAS_ADAPTER *ioc, u16 smid)
2917 {
2918 struct _tr_list *delayed_tr;
2919
2920 if (!list_empty(&ioc->delayed_tr_volume_list)) {
2921 delayed_tr = list_entry(ioc->delayed_tr_volume_list.next,
2922 struct _tr_list, list);
2923 mpt2sas_base_free_smid(ioc, smid);
2924 _scsih_tm_tr_volume_send(ioc, delayed_tr->handle);
2925 list_del(&delayed_tr->list);
2926 kfree(delayed_tr);
2927 return 0;
2928 }
2929
2930 if (!list_empty(&ioc->delayed_tr_list)) {
2931 delayed_tr = list_entry(ioc->delayed_tr_list.next,
2932 struct _tr_list, list);
2933 mpt2sas_base_free_smid(ioc, smid);
2934 _scsih_tm_tr_send(ioc, delayed_tr->handle);
2935 list_del(&delayed_tr->list);
2936 kfree(delayed_tr);
2937 return 0;
2938 }
2939
2940 return 1;
2941 }
2942
2943 /**
2944 * _scsih_check_topo_delete_events - sanity check on topo events
2945 * @ioc: per adapter object
2946 * @event_data: the event data payload
2947 *
2948 * This routine added to better handle cable breaker.
2949 *
2950 * This handles the case where driver recieves multiple expander
2951 * add and delete events in a single shot. When there is a delete event
2952 * the routine will void any pending add events waiting in the event queue.
2953 *
2954 * Return nothing.
2955 */
2956 static void
2957 _scsih_check_topo_delete_events(struct MPT2SAS_ADAPTER *ioc,
2958 Mpi2EventDataSasTopologyChangeList_t *event_data)
2959 {
2960 struct fw_event_work *fw_event;
2961 Mpi2EventDataSasTopologyChangeList_t *local_event_data;
2962 u16 expander_handle;
2963 struct _sas_node *sas_expander;
2964 unsigned long flags;
2965 int i, reason_code;
2966 u16 handle;
2967
2968 for (i = 0 ; i < event_data->NumEntries; i++) {
2969 if (event_data->PHY[i].PhyStatus &
2970 MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT)
2971 continue;
2972 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
2973 if (!handle)
2974 continue;
2975 reason_code = event_data->PHY[i].PhyStatus &
2976 MPI2_EVENT_SAS_TOPO_RC_MASK;
2977 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING)
2978 _scsih_tm_tr_send(ioc, handle);
2979 }
2980
2981 expander_handle = le16_to_cpu(event_data->ExpanderDevHandle);
2982 if (expander_handle < ioc->sas_hba.num_phys) {
2983 _scsih_block_io_to_children_attached_directly(ioc, event_data);
2984 return;
2985 }
2986
2987 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING
2988 || event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING) {
2989 spin_lock_irqsave(&ioc->sas_node_lock, flags);
2990 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
2991 expander_handle);
2992 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
2993 _scsih_block_io_to_children_attached_to_ex(ioc, sas_expander);
2994 } else if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_RESPONDING)
2995 _scsih_block_io_to_children_attached_directly(ioc, event_data);
2996
2997 if (event_data->ExpStatus != MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
2998 return;
2999
3000 /* mark ignore flag for pending events */
3001 spin_lock_irqsave(&ioc->fw_event_lock, flags);
3002 list_for_each_entry(fw_event, &ioc->fw_event_list, list) {
3003 if (fw_event->event != MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
3004 fw_event->ignore)
3005 continue;
3006 local_event_data = fw_event->event_data;
3007 if (local_event_data->ExpStatus ==
3008 MPI2_EVENT_SAS_TOPO_ES_ADDED ||
3009 local_event_data->ExpStatus ==
3010 MPI2_EVENT_SAS_TOPO_ES_RESPONDING) {
3011 if (le16_to_cpu(local_event_data->ExpanderDevHandle) ==
3012 expander_handle) {
3013 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3014 "setting ignoring flag\n", ioc->name));
3015 fw_event->ignore = 1;
3016 }
3017 }
3018 }
3019 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
3020 }
3021
3022 /**
3023 * _scsih_set_volume_delete_flag - setting volume delete flag
3024 * @ioc: per adapter object
3025 * @handle: device handle
3026 *
3027 * This
3028 * Return nothing.
3029 */
3030 static void
3031 _scsih_set_volume_delete_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3032 {
3033 struct _raid_device *raid_device;
3034 struct MPT2SAS_TARGET *sas_target_priv_data;
3035 unsigned long flags;
3036
3037 spin_lock_irqsave(&ioc->raid_device_lock, flags);
3038 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
3039 if (raid_device && raid_device->starget &&
3040 raid_device->starget->hostdata) {
3041 sas_target_priv_data =
3042 raid_device->starget->hostdata;
3043 sas_target_priv_data->deleted = 1;
3044 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3045 "setting delete flag: handle(0x%04x), "
3046 "wwid(0x%016llx)\n", ioc->name, handle,
3047 (unsigned long long) raid_device->wwid));
3048 }
3049 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
3050 }
3051
3052 /**
3053 * _scsih_set_volume_handle_for_tr - set handle for target reset to volume
3054 * @handle: input handle
3055 * @a: handle for volume a
3056 * @b: handle for volume b
3057 *
3058 * IR firmware only supports two raid volumes. The purpose of this
3059 * routine is to set the volume handle in either a or b. When the given
3060 * input handle is non-zero, or when a and b have not been set before.
3061 */
3062 static void
3063 _scsih_set_volume_handle_for_tr(u16 handle, u16 *a, u16 *b)
3064 {
3065 if (!handle || handle == *a || handle == *b)
3066 return;
3067 if (!*a)
3068 *a = handle;
3069 else if (!*b)
3070 *b = handle;
3071 }
3072
3073 /**
3074 * _scsih_check_ir_config_unhide_events - check for UNHIDE events
3075 * @ioc: per adapter object
3076 * @event_data: the event data payload
3077 * Context: interrupt time.
3078 *
3079 * This routine will send target reset to volume, followed by target
3080 * resets to the PDs. This is called when a PD has been removed, or
3081 * volume has been deleted or removed. When the target reset is sent
3082 * to volume, the PD target resets need to be queued to start upon
3083 * completion of the volume target reset.
3084 *
3085 * Return nothing.
3086 */
3087 static void
3088 _scsih_check_ir_config_unhide_events(struct MPT2SAS_ADAPTER *ioc,
3089 Mpi2EventDataIrConfigChangeList_t *event_data)
3090 {
3091 Mpi2EventIrConfigElement_t *element;
3092 int i;
3093 u16 handle, volume_handle, a, b;
3094 struct _tr_list *delayed_tr;
3095
3096 a = 0;
3097 b = 0;
3098
3099 /* Volume Resets for Deleted or Removed */
3100 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3101 for (i = 0; i < event_data->NumElements; i++, element++) {
3102 if (element->ReasonCode ==
3103 MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED ||
3104 element->ReasonCode ==
3105 MPI2_EVENT_IR_CHANGE_RC_REMOVED) {
3106 volume_handle = le16_to_cpu(element->VolDevHandle);
3107 _scsih_set_volume_delete_flag(ioc, volume_handle);
3108 _scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
3109 }
3110 }
3111
3112 /* Volume Resets for UNHIDE events */
3113 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3114 for (i = 0; i < event_data->NumElements; i++, element++) {
3115 if (le32_to_cpu(event_data->Flags) &
3116 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
3117 continue;
3118 if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_UNHIDE) {
3119 volume_handle = le16_to_cpu(element->VolDevHandle);
3120 _scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
3121 }
3122 }
3123
3124 if (a)
3125 _scsih_tm_tr_volume_send(ioc, a);
3126 if (b)
3127 _scsih_tm_tr_volume_send(ioc, b);
3128
3129 /* PD target resets */
3130 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3131 for (i = 0; i < event_data->NumElements; i++, element++) {
3132 if (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_UNHIDE)
3133 continue;
3134 handle = le16_to_cpu(element->PhysDiskDevHandle);
3135 volume_handle = le16_to_cpu(element->VolDevHandle);
3136 clear_bit(handle, ioc->pd_handles);
3137 if (!volume_handle)
3138 _scsih_tm_tr_send(ioc, handle);
3139 else if (volume_handle == a || volume_handle == b) {
3140 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
3141 BUG_ON(!delayed_tr);
3142 INIT_LIST_HEAD(&delayed_tr->list);
3143 delayed_tr->handle = handle;
3144 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
3145 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3146 "DELAYED:tr:handle(0x%04x), (open)\n", ioc->name,
3147 handle));
3148 } else
3149 _scsih_tm_tr_send(ioc, handle);
3150 }
3151 }
3152
3153
3154 /**
3155 * _scsih_check_volume_delete_events - set delete flag for volumes
3156 * @ioc: per adapter object
3157 * @event_data: the event data payload
3158 * Context: interrupt time.
3159 *
3160 * This will handle the case when the cable connected to entire volume is
3161 * pulled. We will take care of setting the deleted flag so normal IO will
3162 * not be sent.
3163 *
3164 * Return nothing.
3165 */
3166 static void
3167 _scsih_check_volume_delete_events(struct MPT2SAS_ADAPTER *ioc,
3168 Mpi2EventDataIrVolume_t *event_data)
3169 {
3170 u32 state;
3171
3172 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
3173 return;
3174 state = le32_to_cpu(event_data->NewValue);
3175 if (state == MPI2_RAID_VOL_STATE_MISSING || state ==
3176 MPI2_RAID_VOL_STATE_FAILED)
3177 _scsih_set_volume_delete_flag(ioc,
3178 le16_to_cpu(event_data->VolDevHandle));
3179 }
3180
3181 /**
3182 * _scsih_flush_running_cmds - completing outstanding commands.
3183 * @ioc: per adapter object
3184 *
3185 * The flushing out of all pending scmd commands following host reset,
3186 * where all IO is dropped to the floor.
3187 *
3188 * Return nothing.
3189 */
3190 static void
3191 _scsih_flush_running_cmds(struct MPT2SAS_ADAPTER *ioc)
3192 {
3193 struct scsi_cmnd *scmd;
3194 u16 smid;
3195 u16 count = 0;
3196
3197 for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
3198 scmd = _scsih_scsi_lookup_get(ioc, smid);
3199 if (!scmd)
3200 continue;
3201 count++;
3202 mpt2sas_base_free_smid(ioc, smid);
3203 scsi_dma_unmap(scmd);
3204 if (ioc->pci_error_recovery)
3205 scmd->result = DID_NO_CONNECT << 16;
3206 else
3207 scmd->result = DID_RESET << 16;
3208 scmd->scsi_done(scmd);
3209 }
3210 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "completing %d cmds\n",
3211 ioc->name, count));
3212 }
3213
3214 /**
3215 * _scsih_setup_eedp - setup MPI request for EEDP transfer
3216 * @scmd: pointer to scsi command object
3217 * @mpi_request: pointer to the SCSI_IO reqest message frame
3218 *
3219 * Supporting protection 1 and 3.
3220 *
3221 * Returns nothing
3222 */
3223 static void
3224 _scsih_setup_eedp(struct scsi_cmnd *scmd, Mpi2SCSIIORequest_t *mpi_request)
3225 {
3226 u16 eedp_flags;
3227 unsigned char prot_op = scsi_get_prot_op(scmd);
3228 unsigned char prot_type = scsi_get_prot_type(scmd);
3229
3230 if (prot_type == SCSI_PROT_DIF_TYPE0 || prot_op == SCSI_PROT_NORMAL)
3231 return;
3232
3233 if (prot_op == SCSI_PROT_READ_STRIP)
3234 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP;
3235 else if (prot_op == SCSI_PROT_WRITE_INSERT)
3236 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_INSERT_OP;
3237 else
3238 return;
3239
3240 switch (prot_type) {
3241 case SCSI_PROT_DIF_TYPE1:
3242
3243 /*
3244 * enable ref/guard checking
3245 * auto increment ref tag
3246 */
3247 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
3248 MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
3249 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
3250 mpi_request->CDB.EEDP32.PrimaryReferenceTag =
3251 cpu_to_be32(scsi_get_lba(scmd));
3252 break;
3253
3254 case SCSI_PROT_DIF_TYPE2:
3255
3256 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
3257 MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
3258 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
3259 break;
3260
3261 case SCSI_PROT_DIF_TYPE3:
3262
3263 /*
3264 * enable guard checking
3265 */
3266 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
3267 break;
3268 }
3269 mpi_request->EEDPBlockSize = cpu_to_le32(scmd->device->sector_size);
3270 mpi_request->EEDPFlags = cpu_to_le16(eedp_flags);
3271 }
3272
3273 /**
3274 * _scsih_eedp_error_handling - return sense code for EEDP errors
3275 * @scmd: pointer to scsi command object
3276 * @ioc_status: ioc status
3277 *
3278 * Returns nothing
3279 */
3280 static void
3281 _scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status)
3282 {
3283 u8 ascq;
3284 u8 sk;
3285 u8 host_byte;
3286
3287 switch (ioc_status) {
3288 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
3289 ascq = 0x01;
3290 break;
3291 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
3292 ascq = 0x02;
3293 break;
3294 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
3295 ascq = 0x03;
3296 break;
3297 default:
3298 ascq = 0x00;
3299 break;
3300 }
3301
3302 if (scmd->sc_data_direction == DMA_TO_DEVICE) {
3303 sk = ILLEGAL_REQUEST;
3304 host_byte = DID_ABORT;
3305 } else {
3306 sk = ABORTED_COMMAND;
3307 host_byte = DID_OK;
3308 }
3309
3310 scsi_build_sense_buffer(0, scmd->sense_buffer, sk, 0x10, ascq);
3311 scmd->result = DRIVER_SENSE << 24 | (host_byte << 16) |
3312 SAM_STAT_CHECK_CONDITION;
3313 }
3314
3315 /**
3316 * _scsih_qcmd - main scsi request entry point
3317 * @scmd: pointer to scsi command object
3318 * @done: function pointer to be invoked on completion
3319 *
3320 * The callback index is set inside `ioc->scsi_io_cb_idx`.
3321 *
3322 * Returns 0 on success. If there's a failure, return either:
3323 * SCSI_MLQUEUE_DEVICE_BUSY if the device queue is full, or
3324 * SCSI_MLQUEUE_HOST_BUSY if the entire host queue is full
3325 */
3326 static int
3327 _scsih_qcmd_lck(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
3328 {
3329 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
3330 struct MPT2SAS_DEVICE *sas_device_priv_data;
3331 struct MPT2SAS_TARGET *sas_target_priv_data;
3332 Mpi2SCSIIORequest_t *mpi_request;
3333 u32 mpi_control;
3334 u16 smid;
3335
3336 scmd->scsi_done = done;
3337 sas_device_priv_data = scmd->device->hostdata;
3338 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
3339 scmd->result = DID_NO_CONNECT << 16;
3340 scmd->scsi_done(scmd);
3341 return 0;
3342 }
3343
3344 if (ioc->pci_error_recovery) {
3345 scmd->result = DID_NO_CONNECT << 16;
3346 scmd->scsi_done(scmd);
3347 return 0;
3348 }
3349
3350 sas_target_priv_data = sas_device_priv_data->sas_target;
3351 /* invalid device handle */
3352 if (sas_target_priv_data->handle == MPT2SAS_INVALID_DEVICE_HANDLE) {
3353 scmd->result = DID_NO_CONNECT << 16;
3354 scmd->scsi_done(scmd);
3355 return 0;
3356 }
3357
3358 /* host recovery or link resets sent via IOCTLs */
3359 if (ioc->shost_recovery || ioc->ioc_link_reset_in_progress)
3360 return SCSI_MLQUEUE_HOST_BUSY;
3361 /* device busy with task management */
3362 else if (sas_device_priv_data->block || sas_target_priv_data->tm_busy)
3363 return SCSI_MLQUEUE_DEVICE_BUSY;
3364 /* device has been deleted */
3365 else if (sas_target_priv_data->deleted) {
3366 scmd->result = DID_NO_CONNECT << 16;
3367 scmd->scsi_done(scmd);
3368 return 0;
3369 }
3370
3371 if (scmd->sc_data_direction == DMA_FROM_DEVICE)
3372 mpi_control = MPI2_SCSIIO_CONTROL_READ;
3373 else if (scmd->sc_data_direction == DMA_TO_DEVICE)
3374 mpi_control = MPI2_SCSIIO_CONTROL_WRITE;
3375 else
3376 mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER;
3377
3378 /* set tags */
3379 if (!(sas_device_priv_data->flags & MPT_DEVICE_FLAGS_INIT)) {
3380 if (scmd->device->tagged_supported) {
3381 if (scmd->device->ordered_tags)
3382 mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ;
3383 else
3384 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
3385 } else
3386 /* MPI Revision I (UNIT = 0xA) - removed MPI2_SCSIIO_CONTROL_UNTAGGED */
3387 /* mpi_control |= MPI2_SCSIIO_CONTROL_UNTAGGED;
3388 */
3389 mpi_control |= (0x500);
3390
3391 } else
3392 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
3393 /* Make sure Device is not raid volume */
3394 if (!_scsih_is_raid(&scmd->device->sdev_gendev) &&
3395 sas_is_tlr_enabled(scmd->device) && scmd->cmd_len != 32)
3396 mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
3397
3398 smid = mpt2sas_base_get_smid_scsiio(ioc, ioc->scsi_io_cb_idx, scmd);
3399 if (!smid) {
3400 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
3401 ioc->name, __func__);
3402 goto out;
3403 }
3404 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3405 memset(mpi_request, 0, sizeof(Mpi2SCSIIORequest_t));
3406 _scsih_setup_eedp(scmd, mpi_request);
3407 if (scmd->cmd_len == 32)
3408 mpi_control |= 4 << MPI2_SCSIIO_CONTROL_ADDCDBLEN_SHIFT;
3409 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
3410 if (sas_device_priv_data->sas_target->flags &
3411 MPT_TARGET_FLAGS_RAID_COMPONENT)
3412 mpi_request->Function = MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
3413 else
3414 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
3415 mpi_request->DevHandle =
3416 cpu_to_le16(sas_device_priv_data->sas_target->handle);
3417 mpi_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
3418 mpi_request->Control = cpu_to_le32(mpi_control);
3419 mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len);
3420 mpi_request->MsgFlags = MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR;
3421 mpi_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
3422 mpi_request->SenseBufferLowAddress =
3423 mpt2sas_base_get_sense_buffer_dma(ioc, smid);
3424 mpi_request->SGLOffset0 = offsetof(Mpi2SCSIIORequest_t, SGL) / 4;
3425 mpi_request->SGLFlags = cpu_to_le16(MPI2_SCSIIO_SGLFLAGS_TYPE_MPI +
3426 MPI2_SCSIIO_SGLFLAGS_SYSTEM_ADDR);
3427 mpi_request->VF_ID = 0; /* TODO */
3428 mpi_request->VP_ID = 0;
3429 int_to_scsilun(sas_device_priv_data->lun, (struct scsi_lun *)
3430 mpi_request->LUN);
3431 memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
3432
3433 if (!mpi_request->DataLength) {
3434 mpt2sas_base_build_zero_len_sge(ioc, &mpi_request->SGL);
3435 } else {
3436 if (_scsih_build_scatter_gather(ioc, scmd, smid)) {
3437 mpt2sas_base_free_smid(ioc, smid);
3438 goto out;
3439 }
3440 }
3441
3442 if (likely(mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST))
3443 mpt2sas_base_put_smid_scsi_io(ioc, smid,
3444 sas_device_priv_data->sas_target->handle);
3445 else
3446 mpt2sas_base_put_smid_default(ioc, smid);
3447 return 0;
3448
3449 out:
3450 return SCSI_MLQUEUE_HOST_BUSY;
3451 }
3452
3453 static DEF_SCSI_QCMD(_scsih_qcmd)
3454
3455 /**
3456 * _scsih_normalize_sense - normalize descriptor and fixed format sense data
3457 * @sense_buffer: sense data returned by target
3458 * @data: normalized skey/asc/ascq
3459 *
3460 * Return nothing.
3461 */
3462 static void
3463 _scsih_normalize_sense(char *sense_buffer, struct sense_info *data)
3464 {
3465 if ((sense_buffer[0] & 0x7F) >= 0x72) {
3466 /* descriptor format */
3467 data->skey = sense_buffer[1] & 0x0F;
3468 data->asc = sense_buffer[2];
3469 data->ascq = sense_buffer[3];
3470 } else {
3471 /* fixed format */
3472 data->skey = sense_buffer[2] & 0x0F;
3473 data->asc = sense_buffer[12];
3474 data->ascq = sense_buffer[13];
3475 }
3476 }
3477
3478 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3479 /**
3480 * _scsih_scsi_ioc_info - translated non-successfull SCSI_IO request
3481 * @ioc: per adapter object
3482 * @scmd: pointer to scsi command object
3483 * @mpi_reply: reply mf payload returned from firmware
3484 *
3485 * scsi_status - SCSI Status code returned from target device
3486 * scsi_state - state info associated with SCSI_IO determined by ioc
3487 * ioc_status - ioc supplied status info
3488 *
3489 * Return nothing.
3490 */
3491 static void
3492 _scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
3493 Mpi2SCSIIOReply_t *mpi_reply, u16 smid)
3494 {
3495 u32 response_info;
3496 u8 *response_bytes;
3497 u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
3498 MPI2_IOCSTATUS_MASK;
3499 u8 scsi_state = mpi_reply->SCSIState;
3500 u8 scsi_status = mpi_reply->SCSIStatus;
3501 char *desc_ioc_state = NULL;
3502 char *desc_scsi_status = NULL;
3503 char *desc_scsi_state = ioc->tmp_string;
3504 u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
3505 struct _sas_device *sas_device = NULL;
3506 unsigned long flags;
3507 struct scsi_target *starget = scmd->device->sdev_target;
3508 struct MPT2SAS_TARGET *priv_target = starget->hostdata;
3509
3510 if (!priv_target)
3511 return;
3512
3513 if (log_info == 0x31170000)
3514 return;
3515
3516 switch (ioc_status) {
3517 case MPI2_IOCSTATUS_SUCCESS:
3518 desc_ioc_state = "success";
3519 break;
3520 case MPI2_IOCSTATUS_INVALID_FUNCTION:
3521 desc_ioc_state = "invalid function";
3522 break;
3523 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
3524 desc_ioc_state = "scsi recovered error";
3525 break;
3526 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
3527 desc_ioc_state = "scsi invalid dev handle";
3528 break;
3529 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
3530 desc_ioc_state = "scsi device not there";
3531 break;
3532 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
3533 desc_ioc_state = "scsi data overrun";
3534 break;
3535 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
3536 desc_ioc_state = "scsi data underrun";
3537 break;
3538 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
3539 desc_ioc_state = "scsi io data error";
3540 break;
3541 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
3542 desc_ioc_state = "scsi protocol error";
3543 break;
3544 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
3545 desc_ioc_state = "scsi task terminated";
3546 break;
3547 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
3548 desc_ioc_state = "scsi residual mismatch";
3549 break;
3550 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
3551 desc_ioc_state = "scsi task mgmt failed";
3552 break;
3553 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
3554 desc_ioc_state = "scsi ioc terminated";
3555 break;
3556 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
3557 desc_ioc_state = "scsi ext terminated";
3558 break;
3559 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
3560 desc_ioc_state = "eedp guard error";
3561 break;
3562 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
3563 desc_ioc_state = "eedp ref tag error";
3564 break;
3565 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
3566 desc_ioc_state = "eedp app tag error";
3567 break;
3568 default:
3569 desc_ioc_state = "unknown";
3570 break;
3571 }
3572
3573 switch (scsi_status) {
3574 case MPI2_SCSI_STATUS_GOOD:
3575 desc_scsi_status = "good";
3576 break;
3577 case MPI2_SCSI_STATUS_CHECK_CONDITION:
3578 desc_scsi_status = "check condition";
3579 break;
3580 case MPI2_SCSI_STATUS_CONDITION_MET:
3581 desc_scsi_status = "condition met";
3582 break;
3583 case MPI2_SCSI_STATUS_BUSY:
3584 desc_scsi_status = "busy";
3585 break;
3586 case MPI2_SCSI_STATUS_INTERMEDIATE:
3587 desc_scsi_status = "intermediate";
3588 break;
3589 case MPI2_SCSI_STATUS_INTERMEDIATE_CONDMET:
3590 desc_scsi_status = "intermediate condmet";
3591 break;
3592 case MPI2_SCSI_STATUS_RESERVATION_CONFLICT:
3593 desc_scsi_status = "reservation conflict";
3594 break;
3595 case MPI2_SCSI_STATUS_COMMAND_TERMINATED:
3596 desc_scsi_status = "command terminated";
3597 break;
3598 case MPI2_SCSI_STATUS_TASK_SET_FULL:
3599 desc_scsi_status = "task set full";
3600 break;
3601 case MPI2_SCSI_STATUS_ACA_ACTIVE:
3602 desc_scsi_status = "aca active";
3603 break;
3604 case MPI2_SCSI_STATUS_TASK_ABORTED:
3605 desc_scsi_status = "task aborted";
3606 break;
3607 default:
3608 desc_scsi_status = "unknown";
3609 break;
3610 }
3611
3612 desc_scsi_state[0] = '\0';
3613 if (!scsi_state)
3614 desc_scsi_state = " ";
3615 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
3616 strcat(desc_scsi_state, "response info ");
3617 if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
3618 strcat(desc_scsi_state, "state terminated ");
3619 if (scsi_state & MPI2_SCSI_STATE_NO_SCSI_STATUS)
3620 strcat(desc_scsi_state, "no status ");
3621 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_FAILED)
3622 strcat(desc_scsi_state, "autosense failed ");
3623 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID)
3624 strcat(desc_scsi_state, "autosense valid ");
3625
3626 scsi_print_command(scmd);
3627
3628 if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
3629 printk(MPT2SAS_WARN_FMT "\tvolume wwid(0x%016llx)\n", ioc->name,
3630 (unsigned long long)priv_target->sas_address);
3631 } else {
3632 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3633 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
3634 priv_target->sas_address);
3635 if (sas_device) {
3636 printk(MPT2SAS_WARN_FMT "\tsas_address(0x%016llx), "
3637 "phy(%d)\n", ioc->name, sas_device->sas_address,
3638 sas_device->phy);
3639 printk(MPT2SAS_WARN_FMT
3640 "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
3641 ioc->name, sas_device->enclosure_logical_id,
3642 sas_device->slot);
3643 }
3644 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3645 }
3646
3647 printk(MPT2SAS_WARN_FMT "\thandle(0x%04x), ioc_status(%s)(0x%04x), "
3648 "smid(%d)\n", ioc->name, le16_to_cpu(mpi_reply->DevHandle),
3649 desc_ioc_state, ioc_status, smid);
3650 printk(MPT2SAS_WARN_FMT "\trequest_len(%d), underflow(%d), "
3651 "resid(%d)\n", ioc->name, scsi_bufflen(scmd), scmd->underflow,
3652 scsi_get_resid(scmd));
3653 printk(MPT2SAS_WARN_FMT "\ttag(%d), transfer_count(%d), "
3654 "sc->result(0x%08x)\n", ioc->name, le16_to_cpu(mpi_reply->TaskTag),
3655 le32_to_cpu(mpi_reply->TransferCount), scmd->result);
3656 printk(MPT2SAS_WARN_FMT "\tscsi_status(%s)(0x%02x), "
3657 "scsi_state(%s)(0x%02x)\n", ioc->name, desc_scsi_status,
3658 scsi_status, desc_scsi_state, scsi_state);
3659
3660 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
3661 struct sense_info data;
3662 _scsih_normalize_sense(scmd->sense_buffer, &data);
3663 printk(MPT2SAS_WARN_FMT "\t[sense_key,asc,ascq]: "
3664 "[0x%02x,0x%02x,0x%02x], count(%d)\n", ioc->name, data.skey,
3665 data.asc, data.ascq, le32_to_cpu(mpi_reply->SenseCount));
3666 }
3667
3668 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
3669 response_info = le32_to_cpu(mpi_reply->ResponseInfo);
3670 response_bytes = (u8 *)&response_info;
3671 _scsih_response_code(ioc, response_bytes[0]);
3672 }
3673 }
3674 #endif
3675
3676 /**
3677 * _scsih_smart_predicted_fault - illuminate Fault LED
3678 * @ioc: per adapter object
3679 * @handle: device handle
3680 *
3681 * Return nothing.
3682 */
3683 static void
3684 _scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3685 {
3686 Mpi2SepReply_t mpi_reply;
3687 Mpi2SepRequest_t mpi_request;
3688 struct scsi_target *starget;
3689 struct MPT2SAS_TARGET *sas_target_priv_data;
3690 Mpi2EventNotificationReply_t *event_reply;
3691 Mpi2EventDataSasDeviceStatusChange_t *event_data;
3692 struct _sas_device *sas_device;
3693 ssize_t sz;
3694 unsigned long flags;
3695
3696 /* only handle non-raid devices */
3697 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3698 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
3699 if (!sas_device) {
3700 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3701 return;
3702 }
3703 starget = sas_device->starget;
3704 sas_target_priv_data = starget->hostdata;
3705
3706 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) ||
3707 ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) {
3708 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3709 return;
3710 }
3711 starget_printk(KERN_WARNING, starget, "predicted fault\n");
3712 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3713
3714 if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM) {
3715 memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t));
3716 mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
3717 mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS;
3718 mpi_request.SlotStatus =
3719 cpu_to_le32(MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
3720 mpi_request.DevHandle = cpu_to_le16(handle);
3721 mpi_request.Flags = MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS;
3722 if ((mpt2sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
3723 &mpi_request)) != 0) {
3724 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3725 ioc->name, __FILE__, __LINE__, __func__);
3726 return;
3727 }
3728
3729 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) {
3730 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3731 "enclosure_processor: ioc_status (0x%04x), "
3732 "loginfo(0x%08x)\n", ioc->name,
3733 le16_to_cpu(mpi_reply.IOCStatus),
3734 le32_to_cpu(mpi_reply.IOCLogInfo)));
3735 return;
3736 }
3737 }
3738
3739 /* insert into event log */
3740 sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
3741 sizeof(Mpi2EventDataSasDeviceStatusChange_t);
3742 event_reply = kzalloc(sz, GFP_KERNEL);
3743 if (!event_reply) {
3744 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3745 ioc->name, __FILE__, __LINE__, __func__);
3746 return;
3747 }
3748
3749 event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
3750 event_reply->Event =
3751 cpu_to_le16(MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
3752 event_reply->MsgLength = sz/4;
3753 event_reply->EventDataLength =
3754 cpu_to_le16(sizeof(Mpi2EventDataSasDeviceStatusChange_t)/4);
3755 event_data = (Mpi2EventDataSasDeviceStatusChange_t *)
3756 event_reply->EventData;
3757 event_data->ReasonCode = MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA;
3758 event_data->ASC = 0x5D;
3759 event_data->DevHandle = cpu_to_le16(handle);
3760 event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address);
3761 mpt2sas_ctl_add_to_event_log(ioc, event_reply);
3762 kfree(event_reply);
3763 }
3764
3765 /**
3766 * _scsih_io_done - scsi request callback
3767 * @ioc: per adapter object
3768 * @smid: system request message index
3769 * @msix_index: MSIX table index supplied by the OS
3770 * @reply: reply message frame(lower 32bit addr)
3771 *
3772 * Callback handler when using _scsih_qcmd.
3773 *
3774 * Return 1 meaning mf should be freed from _base_interrupt
3775 * 0 means the mf is freed from this function.
3776 */
3777 static u8
3778 _scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
3779 {
3780 Mpi2SCSIIORequest_t *mpi_request;
3781 Mpi2SCSIIOReply_t *mpi_reply;
3782 struct scsi_cmnd *scmd;
3783 u16 ioc_status;
3784 u32 xfer_cnt;
3785 u8 scsi_state;
3786 u8 scsi_status;
3787 u32 log_info;
3788 struct MPT2SAS_DEVICE *sas_device_priv_data;
3789 u32 response_code = 0;
3790
3791 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
3792 scmd = _scsih_scsi_lookup_get(ioc, smid);
3793 if (scmd == NULL)
3794 return 1;
3795
3796 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3797
3798 if (mpi_reply == NULL) {
3799 scmd->result = DID_OK << 16;
3800 goto out;
3801 }
3802
3803 sas_device_priv_data = scmd->device->hostdata;
3804 if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
3805 sas_device_priv_data->sas_target->deleted) {
3806 scmd->result = DID_NO_CONNECT << 16;
3807 goto out;
3808 }
3809
3810 /* turning off TLR */
3811 scsi_state = mpi_reply->SCSIState;
3812 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
3813 response_code =
3814 le32_to_cpu(mpi_reply->ResponseInfo) & 0xFF;
3815 if (!sas_device_priv_data->tlr_snoop_check) {
3816 sas_device_priv_data->tlr_snoop_check++;
3817 if (!_scsih_is_raid(&scmd->device->sdev_gendev) &&
3818 sas_is_tlr_enabled(scmd->device) &&
3819 response_code == MPI2_SCSITASKMGMT_RSP_INVALID_FRAME) {
3820 sas_disable_tlr(scmd->device);
3821 sdev_printk(KERN_INFO, scmd->device, "TLR disabled\n");
3822 }
3823 }
3824
3825 xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
3826 scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
3827 ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
3828 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
3829 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
3830 else
3831 log_info = 0;
3832 ioc_status &= MPI2_IOCSTATUS_MASK;
3833 scsi_status = mpi_reply->SCSIStatus;
3834
3835 if (ioc_status == MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
3836 (scsi_status == MPI2_SCSI_STATUS_BUSY ||
3837 scsi_status == MPI2_SCSI_STATUS_RESERVATION_CONFLICT ||
3838 scsi_status == MPI2_SCSI_STATUS_TASK_SET_FULL)) {
3839 ioc_status = MPI2_IOCSTATUS_SUCCESS;
3840 }
3841
3842 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
3843 struct sense_info data;
3844 const void *sense_data = mpt2sas_base_get_sense_buffer(ioc,
3845 smid);
3846 u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
3847 le32_to_cpu(mpi_reply->SenseCount));
3848 memcpy(scmd->sense_buffer, sense_data, sz);
3849 _scsih_normalize_sense(scmd->sense_buffer, &data);
3850 /* failure prediction threshold exceeded */
3851 if (data.asc == 0x5D)
3852 _scsih_smart_predicted_fault(ioc,
3853 le16_to_cpu(mpi_reply->DevHandle));
3854 }
3855
3856 switch (ioc_status) {
3857 case MPI2_IOCSTATUS_BUSY:
3858 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
3859 scmd->result = SAM_STAT_BUSY;
3860 break;
3861
3862 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
3863 scmd->result = DID_NO_CONNECT << 16;
3864 break;
3865
3866 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
3867 if (sas_device_priv_data->block) {
3868 scmd->result = DID_TRANSPORT_DISRUPTED << 16;
3869 goto out;
3870 }
3871 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
3872 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
3873 scmd->result = DID_RESET << 16;
3874 break;
3875
3876 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
3877 if ((xfer_cnt == 0) || (scmd->underflow > xfer_cnt))
3878 scmd->result = DID_SOFT_ERROR << 16;
3879 else
3880 scmd->result = (DID_OK << 16) | scsi_status;
3881 break;
3882
3883 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
3884 scmd->result = (DID_OK << 16) | scsi_status;
3885
3886 if ((scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID))
3887 break;
3888
3889 if (xfer_cnt < scmd->underflow) {
3890 if (scsi_status == SAM_STAT_BUSY)
3891 scmd->result = SAM_STAT_BUSY;
3892 else
3893 scmd->result = DID_SOFT_ERROR << 16;
3894 } else if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
3895 MPI2_SCSI_STATE_NO_SCSI_STATUS))
3896 scmd->result = DID_SOFT_ERROR << 16;
3897 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
3898 scmd->result = DID_RESET << 16;
3899 else if (!xfer_cnt && scmd->cmnd[0] == REPORT_LUNS) {
3900 mpi_reply->SCSIState = MPI2_SCSI_STATE_AUTOSENSE_VALID;
3901 mpi_reply->SCSIStatus = SAM_STAT_CHECK_CONDITION;
3902 scmd->result = (DRIVER_SENSE << 24) |
3903 SAM_STAT_CHECK_CONDITION;
3904 scmd->sense_buffer[0] = 0x70;
3905 scmd->sense_buffer[2] = ILLEGAL_REQUEST;
3906 scmd->sense_buffer[12] = 0x20;
3907 scmd->sense_buffer[13] = 0;
3908 }
3909 break;
3910
3911 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
3912 scsi_set_resid(scmd, 0);
3913 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
3914 case MPI2_IOCSTATUS_SUCCESS:
3915 scmd->result = (DID_OK << 16) | scsi_status;
3916 if (response_code ==
3917 MPI2_SCSITASKMGMT_RSP_INVALID_FRAME ||
3918 (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
3919 MPI2_SCSI_STATE_NO_SCSI_STATUS)))
3920 scmd->result = DID_SOFT_ERROR << 16;
3921 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
3922 scmd->result = DID_RESET << 16;
3923 break;
3924
3925 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
3926 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
3927 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
3928 _scsih_eedp_error_handling(scmd, ioc_status);
3929 break;
3930 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
3931 case MPI2_IOCSTATUS_INVALID_FUNCTION:
3932 case MPI2_IOCSTATUS_INVALID_SGL:
3933 case MPI2_IOCSTATUS_INTERNAL_ERROR:
3934 case MPI2_IOCSTATUS_INVALID_FIELD:
3935 case MPI2_IOCSTATUS_INVALID_STATE:
3936 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
3937 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
3938 default:
3939 scmd->result = DID_SOFT_ERROR << 16;
3940 break;
3941
3942 }
3943
3944 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3945 if (scmd->result && (ioc->logging_level & MPT_DEBUG_REPLY))
3946 _scsih_scsi_ioc_info(ioc , scmd, mpi_reply, smid);
3947 #endif
3948
3949 out:
3950 scsi_dma_unmap(scmd);
3951 scmd->scsi_done(scmd);
3952 return 1;
3953 }
3954
3955 /**
3956 * _scsih_sas_host_refresh - refreshing sas host object contents
3957 * @ioc: per adapter object
3958 * Context: user
3959 *
3960 * During port enable, fw will send topology events for every device. Its
3961 * possible that the handles may change from the previous setting, so this
3962 * code keeping handles updating if changed.
3963 *
3964 * Return nothing.
3965 */
3966 static void
3967 _scsih_sas_host_refresh(struct MPT2SAS_ADAPTER *ioc)
3968 {
3969 u16 sz;
3970 u16 ioc_status;
3971 int i;
3972 Mpi2ConfigReply_t mpi_reply;
3973 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
3974 u16 attached_handle;
3975 u8 link_rate;
3976
3977 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT
3978 "updating handles for sas_host(0x%016llx)\n",
3979 ioc->name, (unsigned long long)ioc->sas_hba.sas_address));
3980
3981 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys
3982 * sizeof(Mpi2SasIOUnit0PhyData_t));
3983 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
3984 if (!sas_iounit_pg0) {
3985 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3986 ioc->name, __FILE__, __LINE__, __func__);
3987 return;
3988 }
3989
3990 if ((mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
3991 sas_iounit_pg0, sz)) != 0)
3992 goto out;
3993 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
3994 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
3995 goto out;
3996 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
3997 link_rate = sas_iounit_pg0->PhyData[i].NegotiatedLinkRate >> 4;
3998 if (i == 0)
3999 ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
4000 PhyData[0].ControllerDevHandle);
4001 ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
4002 attached_handle = le16_to_cpu(sas_iounit_pg0->PhyData[i].
4003 AttachedDevHandle);
4004 if (attached_handle && link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
4005 link_rate = MPI2_SAS_NEG_LINK_RATE_1_5;
4006 mpt2sas_transport_update_links(ioc, ioc->sas_hba.sas_address,
4007 attached_handle, i, link_rate);
4008 }
4009 out:
4010 kfree(sas_iounit_pg0);
4011 }
4012
4013 /**
4014 * _scsih_sas_host_add - create sas host object
4015 * @ioc: per adapter object
4016 *
4017 * Creating host side data object, stored in ioc->sas_hba
4018 *
4019 * Return nothing.
4020 */
4021 static void
4022 _scsih_sas_host_add(struct MPT2SAS_ADAPTER *ioc)
4023 {
4024 int i;
4025 Mpi2ConfigReply_t mpi_reply;
4026 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
4027 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
4028 Mpi2SasPhyPage0_t phy_pg0;
4029 Mpi2SasDevicePage0_t sas_device_pg0;
4030 Mpi2SasEnclosurePage0_t enclosure_pg0;
4031 u16 ioc_status;
4032 u16 sz;
4033 u16 device_missing_delay;
4034
4035 mpt2sas_config_get_number_hba_phys(ioc, &ioc->sas_hba.num_phys);
4036 if (!ioc->sas_hba.num_phys) {
4037 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4038 ioc->name, __FILE__, __LINE__, __func__);
4039 return;
4040 }
4041
4042 /* sas_iounit page 0 */
4043 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys *
4044 sizeof(Mpi2SasIOUnit0PhyData_t));
4045 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
4046 if (!sas_iounit_pg0) {
4047 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4048 ioc->name, __FILE__, __LINE__, __func__);
4049 return;
4050 }
4051 if ((mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
4052 sas_iounit_pg0, sz))) {
4053 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4054 ioc->name, __FILE__, __LINE__, __func__);
4055 goto out;
4056 }
4057 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4058 MPI2_IOCSTATUS_MASK;
4059 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4060 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4061 ioc->name, __FILE__, __LINE__, __func__);
4062 goto out;
4063 }
4064
4065 /* sas_iounit page 1 */
4066 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
4067 sizeof(Mpi2SasIOUnit1PhyData_t));
4068 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
4069 if (!sas_iounit_pg1) {
4070 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4071 ioc->name, __FILE__, __LINE__, __func__);
4072 goto out;
4073 }
4074 if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
4075 sas_iounit_pg1, sz))) {
4076 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4077 ioc->name, __FILE__, __LINE__, __func__);
4078 goto out;
4079 }
4080 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4081 MPI2_IOCSTATUS_MASK;
4082 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4083 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4084 ioc->name, __FILE__, __LINE__, __func__);
4085 goto out;
4086 }
4087
4088 ioc->io_missing_delay =
4089 le16_to_cpu(sas_iounit_pg1->IODeviceMissingDelay);
4090 device_missing_delay =
4091 le16_to_cpu(sas_iounit_pg1->ReportDeviceMissingDelay);
4092 if (device_missing_delay & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
4093 ioc->device_missing_delay = (device_missing_delay &
4094 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
4095 else
4096 ioc->device_missing_delay = device_missing_delay &
4097 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
4098
4099 ioc->sas_hba.parent_dev = &ioc->shost->shost_gendev;
4100 ioc->sas_hba.phy = kcalloc(ioc->sas_hba.num_phys,
4101 sizeof(struct _sas_phy), GFP_KERNEL);
4102 if (!ioc->sas_hba.phy) {
4103 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4104 ioc->name, __FILE__, __LINE__, __func__);
4105 goto out;
4106 }
4107 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
4108 if ((mpt2sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
4109 i))) {
4110 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4111 ioc->name, __FILE__, __LINE__, __func__);
4112 goto out;
4113 }
4114 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4115 MPI2_IOCSTATUS_MASK;
4116 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4117 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4118 ioc->name, __FILE__, __LINE__, __func__);
4119 goto out;
4120 }
4121
4122 if (i == 0)
4123 ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
4124 PhyData[0].ControllerDevHandle);
4125 ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
4126 ioc->sas_hba.phy[i].phy_id = i;
4127 mpt2sas_transport_add_host_phy(ioc, &ioc->sas_hba.phy[i],
4128 phy_pg0, ioc->sas_hba.parent_dev);
4129 }
4130 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
4131 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.handle))) {
4132 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4133 ioc->name, __FILE__, __LINE__, __func__);
4134 goto out;
4135 }
4136 ioc->sas_hba.enclosure_handle =
4137 le16_to_cpu(sas_device_pg0.EnclosureHandle);
4138 ioc->sas_hba.sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4139 printk(MPT2SAS_INFO_FMT "host_add: handle(0x%04x), "
4140 "sas_addr(0x%016llx), phys(%d)\n", ioc->name, ioc->sas_hba.handle,
4141 (unsigned long long) ioc->sas_hba.sas_address,
4142 ioc->sas_hba.num_phys) ;
4143
4144 if (ioc->sas_hba.enclosure_handle) {
4145 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
4146 &enclosure_pg0,
4147 MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
4148 ioc->sas_hba.enclosure_handle))) {
4149 ioc->sas_hba.enclosure_logical_id =
4150 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
4151 }
4152 }
4153
4154 out:
4155 kfree(sas_iounit_pg1);
4156 kfree(sas_iounit_pg0);
4157 }
4158
4159 /**
4160 * _scsih_expander_add - creating expander object
4161 * @ioc: per adapter object
4162 * @handle: expander handle
4163 *
4164 * Creating expander object, stored in ioc->sas_expander_list.
4165 *
4166 * Return 0 for success, else error.
4167 */
4168 static int
4169 _scsih_expander_add(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4170 {
4171 struct _sas_node *sas_expander;
4172 Mpi2ConfigReply_t mpi_reply;
4173 Mpi2ExpanderPage0_t expander_pg0;
4174 Mpi2ExpanderPage1_t expander_pg1;
4175 Mpi2SasEnclosurePage0_t enclosure_pg0;
4176 u32 ioc_status;
4177 u16 parent_handle;
4178 __le64 sas_address, sas_address_parent = 0;
4179 int i;
4180 unsigned long flags;
4181 struct _sas_port *mpt2sas_port = NULL;
4182 int rc = 0;
4183
4184 if (!handle)
4185 return -1;
4186
4187 if (ioc->shost_recovery || ioc->pci_error_recovery)
4188 return -1;
4189
4190 if ((mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
4191 MPI2_SAS_EXPAND_PGAD_FORM_HNDL, handle))) {
4192 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4193 ioc->name, __FILE__, __LINE__, __func__);
4194 return -1;
4195 }
4196
4197 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4198 MPI2_IOCSTATUS_MASK;
4199 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4200 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4201 ioc->name, __FILE__, __LINE__, __func__);
4202 return -1;
4203 }
4204
4205 /* handle out of order topology events */
4206 parent_handle = le16_to_cpu(expander_pg0.ParentDevHandle);
4207 if (_scsih_get_sas_address(ioc, parent_handle, &sas_address_parent)
4208 != 0) {
4209 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4210 ioc->name, __FILE__, __LINE__, __func__);
4211 return -1;
4212 }
4213 if (sas_address_parent != ioc->sas_hba.sas_address) {
4214 spin_lock_irqsave(&ioc->sas_node_lock, flags);
4215 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
4216 sas_address_parent);
4217 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4218 if (!sas_expander) {
4219 rc = _scsih_expander_add(ioc, parent_handle);
4220 if (rc != 0)
4221 return rc;
4222 }
4223 }
4224
4225 spin_lock_irqsave(&ioc->sas_node_lock, flags);
4226 sas_address = le64_to_cpu(expander_pg0.SASAddress);
4227 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
4228 sas_address);
4229 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4230
4231 if (sas_expander)
4232 return 0;
4233
4234 sas_expander = kzalloc(sizeof(struct _sas_node),
4235 GFP_KERNEL);
4236 if (!sas_expander) {
4237 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4238 ioc->name, __FILE__, __LINE__, __func__);
4239 return -1;
4240 }
4241
4242 sas_expander->handle = handle;
4243 sas_expander->num_phys = expander_pg0.NumPhys;
4244 sas_expander->sas_address_parent = sas_address_parent;
4245 sas_expander->sas_address = sas_address;
4246
4247 printk(MPT2SAS_INFO_FMT "expander_add: handle(0x%04x),"
4248 " parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n", ioc->name,
4249 handle, parent_handle, (unsigned long long)
4250 sas_expander->sas_address, sas_expander->num_phys);
4251
4252 if (!sas_expander->num_phys)
4253 goto out_fail;
4254 sas_expander->phy = kcalloc(sas_expander->num_phys,
4255 sizeof(struct _sas_phy), GFP_KERNEL);
4256 if (!sas_expander->phy) {
4257 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4258 ioc->name, __FILE__, __LINE__, __func__);
4259 rc = -1;
4260 goto out_fail;
4261 }
4262
4263 INIT_LIST_HEAD(&sas_expander->sas_port_list);
4264 mpt2sas_port = mpt2sas_transport_port_add(ioc, handle,
4265 sas_address_parent);
4266 if (!mpt2sas_port) {
4267 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4268 ioc->name, __FILE__, __LINE__, __func__);
4269 rc = -1;
4270 goto out_fail;
4271 }
4272 sas_expander->parent_dev = &mpt2sas_port->rphy->dev;
4273
4274 for (i = 0 ; i < sas_expander->num_phys ; i++) {
4275 if ((mpt2sas_config_get_expander_pg1(ioc, &mpi_reply,
4276 &expander_pg1, i, handle))) {
4277 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4278 ioc->name, __FILE__, __LINE__, __func__);
4279 rc = -1;
4280 goto out_fail;
4281 }
4282 sas_expander->phy[i].handle = handle;
4283 sas_expander->phy[i].phy_id = i;
4284
4285 if ((mpt2sas_transport_add_expander_phy(ioc,
4286 &sas_expander->phy[i], expander_pg1,
4287 sas_expander->parent_dev))) {
4288 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4289 ioc->name, __FILE__, __LINE__, __func__);
4290 rc = -1;
4291 goto out_fail;
4292 }
4293 }
4294
4295 if (sas_expander->enclosure_handle) {
4296 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
4297 &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
4298 sas_expander->enclosure_handle))) {
4299 sas_expander->enclosure_logical_id =
4300 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
4301 }
4302 }
4303
4304 _scsih_expander_node_add(ioc, sas_expander);
4305 return 0;
4306
4307 out_fail:
4308
4309 if (mpt2sas_port)
4310 mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
4311 sas_address_parent);
4312 kfree(sas_expander);
4313 return rc;
4314 }
4315
4316 /**
4317 * _scsih_done - scsih callback handler.
4318 * @ioc: per adapter object
4319 * @smid: system request message index
4320 * @msix_index: MSIX table index supplied by the OS
4321 * @reply: reply message frame(lower 32bit addr)
4322 *
4323 * Callback handler when sending internal generated message frames.
4324 * The callback index passed is `ioc->scsih_cb_idx`
4325 *
4326 * Return 1 meaning mf should be freed from _base_interrupt
4327 * 0 means the mf is freed from this function.
4328 */
4329 static u8
4330 _scsih_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
4331 {
4332 MPI2DefaultReply_t *mpi_reply;
4333
4334 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
4335 if (ioc->scsih_cmds.status == MPT2_CMD_NOT_USED)
4336 return 1;
4337 if (ioc->scsih_cmds.smid != smid)
4338 return 1;
4339 ioc->scsih_cmds.status |= MPT2_CMD_COMPLETE;
4340 if (mpi_reply) {
4341 memcpy(ioc->scsih_cmds.reply, mpi_reply,
4342 mpi_reply->MsgLength*4);
4343 ioc->scsih_cmds.status |= MPT2_CMD_REPLY_VALID;
4344 }
4345 ioc->scsih_cmds.status &= ~MPT2_CMD_PENDING;
4346 complete(&ioc->scsih_cmds.done);
4347 return 1;
4348 }
4349
4350 /**
4351 * mpt2sas_expander_remove - removing expander object
4352 * @ioc: per adapter object
4353 * @sas_address: expander sas_address
4354 *
4355 * Return nothing.
4356 */
4357 void
4358 mpt2sas_expander_remove(struct MPT2SAS_ADAPTER *ioc, u64 sas_address)
4359 {
4360 struct _sas_node *sas_expander;
4361 unsigned long flags;
4362
4363 if (ioc->shost_recovery)
4364 return;
4365
4366 spin_lock_irqsave(&ioc->sas_node_lock, flags);
4367 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
4368 sas_address);
4369 if (!sas_expander) {
4370 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4371 return;
4372 }
4373 list_del(&sas_expander->list);
4374 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4375 _scsih_expander_node_remove(ioc, sas_expander);
4376 }
4377
4378 /**
4379 * _scsih_check_access_status - check access flags
4380 * @ioc: per adapter object
4381 * @sas_address: sas address
4382 * @handle: sas device handle
4383 * @access_flags: errors returned during discovery of the device
4384 *
4385 * Return 0 for success, else failure
4386 */
4387 static u8
4388 _scsih_check_access_status(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
4389 u16 handle, u8 access_status)
4390 {
4391 u8 rc = 1;
4392 char *desc = NULL;
4393
4394 switch (access_status) {
4395 case MPI2_SAS_DEVICE0_ASTATUS_NO_ERRORS:
4396 case MPI2_SAS_DEVICE0_ASTATUS_SATA_NEEDS_INITIALIZATION:
4397 rc = 0;
4398 break;
4399 case MPI2_SAS_DEVICE0_ASTATUS_SATA_CAPABILITY_FAILED:
4400 desc = "sata capability failed";
4401 break;
4402 case MPI2_SAS_DEVICE0_ASTATUS_SATA_AFFILIATION_CONFLICT:
4403 desc = "sata affiliation conflict";
4404 break;
4405 case MPI2_SAS_DEVICE0_ASTATUS_ROUTE_NOT_ADDRESSABLE:
4406 desc = "route not addressable";
4407 break;
4408 case MPI2_SAS_DEVICE0_ASTATUS_SMP_ERROR_NOT_ADDRESSABLE:
4409 desc = "smp error not addressable";
4410 break;
4411 case MPI2_SAS_DEVICE0_ASTATUS_DEVICE_BLOCKED:
4412 desc = "device blocked";
4413 break;
4414 case MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED:
4415 case MPI2_SAS_DEVICE0_ASTATUS_SIF_UNKNOWN:
4416 case MPI2_SAS_DEVICE0_ASTATUS_SIF_AFFILIATION_CONFLICT:
4417 case MPI2_SAS_DEVICE0_ASTATUS_SIF_DIAG:
4418 case MPI2_SAS_DEVICE0_ASTATUS_SIF_IDENTIFICATION:
4419 case MPI2_SAS_DEVICE0_ASTATUS_SIF_CHECK_POWER:
4420 case MPI2_SAS_DEVICE0_ASTATUS_SIF_PIO_SN:
4421 case MPI2_SAS_DEVICE0_ASTATUS_SIF_MDMA_SN:
4422 case MPI2_SAS_DEVICE0_ASTATUS_SIF_UDMA_SN:
4423 case MPI2_SAS_DEVICE0_ASTATUS_SIF_ZONING_VIOLATION:
4424 case MPI2_SAS_DEVICE0_ASTATUS_SIF_NOT_ADDRESSABLE:
4425 case MPI2_SAS_DEVICE0_ASTATUS_SIF_MAX:
4426 desc = "sata initialization failed";
4427 break;
4428 default:
4429 desc = "unknown";
4430 break;
4431 }
4432
4433 if (!rc)
4434 return 0;
4435
4436 printk(MPT2SAS_ERR_FMT "discovery errors(%s): sas_address(0x%016llx), "
4437 "handle(0x%04x)\n", ioc->name, desc,
4438 (unsigned long long)sas_address, handle);
4439 return rc;
4440 }
4441
4442 static void
4443 _scsih_check_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4444 {
4445 Mpi2ConfigReply_t mpi_reply;
4446 Mpi2SasDevicePage0_t sas_device_pg0;
4447 struct _sas_device *sas_device;
4448 u32 ioc_status;
4449 unsigned long flags;
4450 u64 sas_address;
4451 struct scsi_target *starget;
4452 struct MPT2SAS_TARGET *sas_target_priv_data;
4453 u32 device_info;
4454
4455 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
4456 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle)))
4457 return;
4458
4459 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
4460 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
4461 return;
4462
4463 /* check if this is end device */
4464 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
4465 if (!(_scsih_is_end_device(device_info)))
4466 return;
4467
4468 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4469 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4470 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
4471 sas_address);
4472
4473 if (!sas_device) {
4474 printk(MPT2SAS_ERR_FMT "device is not present "
4475 "handle(0x%04x), no sas_device!!!\n", ioc->name, handle);
4476 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4477 return;
4478 }
4479
4480 if (unlikely(sas_device->handle != handle)) {
4481 starget = sas_device->starget;
4482 sas_target_priv_data = starget->hostdata;
4483 starget_printk(KERN_INFO, starget, "handle changed from(0x%04x)"
4484 " to (0x%04x)!!!\n", sas_device->handle, handle);
4485 sas_target_priv_data->handle = handle;
4486 sas_device->handle = handle;
4487 }
4488 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4489
4490 /* check if device is present */
4491 if (!(le16_to_cpu(sas_device_pg0.Flags) &
4492 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
4493 printk(MPT2SAS_ERR_FMT "device is not present "
4494 "handle(0x%04x), flags!!!\n", ioc->name, handle);
4495 return;
4496 }
4497
4498 /* check if there were any issues with discovery */
4499 if (_scsih_check_access_status(ioc, sas_address, handle,
4500 sas_device_pg0.AccessStatus))
4501 return;
4502 _scsih_ublock_io_device(ioc, handle);
4503
4504 }
4505
4506 /**
4507 * _scsih_add_device - creating sas device object
4508 * @ioc: per adapter object
4509 * @handle: sas device handle
4510 * @phy_num: phy number end device attached to
4511 * @is_pd: is this hidden raid component
4512 *
4513 * Creating end device object, stored in ioc->sas_device_list.
4514 *
4515 * Returns 0 for success, non-zero for failure.
4516 */
4517 static int
4518 _scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd)
4519 {
4520 Mpi2ConfigReply_t mpi_reply;
4521 Mpi2SasDevicePage0_t sas_device_pg0;
4522 Mpi2SasEnclosurePage0_t enclosure_pg0;
4523 struct _sas_device *sas_device;
4524 u32 ioc_status;
4525 __le64 sas_address;
4526 u32 device_info;
4527 unsigned long flags;
4528
4529 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
4530 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
4531 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4532 ioc->name, __FILE__, __LINE__, __func__);
4533 return -1;
4534 }
4535
4536 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4537 MPI2_IOCSTATUS_MASK;
4538 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4539 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4540 ioc->name, __FILE__, __LINE__, __func__);
4541 return -1;
4542 }
4543
4544 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4545
4546 /* check if device is present */
4547 if (!(le16_to_cpu(sas_device_pg0.Flags) &
4548 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
4549 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4550 ioc->name, __FILE__, __LINE__, __func__);
4551 printk(MPT2SAS_ERR_FMT "Flags = 0x%04x\n",
4552 ioc->name, le16_to_cpu(sas_device_pg0.Flags));
4553 return -1;
4554 }
4555
4556 /* check if there were any issues with discovery */
4557 if (_scsih_check_access_status(ioc, sas_address, handle,
4558 sas_device_pg0.AccessStatus))
4559 return -1;
4560
4561 /* check if this is end device */
4562 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
4563 if (!(_scsih_is_end_device(device_info))) {
4564 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4565 ioc->name, __FILE__, __LINE__, __func__);
4566 return -1;
4567 }
4568
4569
4570 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4571 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
4572 sas_address);
4573 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4574
4575 if (sas_device)
4576 return 0;
4577
4578 sas_device = kzalloc(sizeof(struct _sas_device),
4579 GFP_KERNEL);
4580 if (!sas_device) {
4581 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4582 ioc->name, __FILE__, __LINE__, __func__);
4583 return -1;
4584 }
4585
4586 sas_device->handle = handle;
4587 if (_scsih_get_sas_address(ioc, le16_to_cpu
4588 (sas_device_pg0.ParentDevHandle),
4589 &sas_device->sas_address_parent) != 0)
4590 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4591 ioc->name, __FILE__, __LINE__, __func__);
4592 sas_device->enclosure_handle =
4593 le16_to_cpu(sas_device_pg0.EnclosureHandle);
4594 sas_device->slot =
4595 le16_to_cpu(sas_device_pg0.Slot);
4596 sas_device->device_info = device_info;
4597 sas_device->sas_address = sas_address;
4598 sas_device->phy = sas_device_pg0.PhyNum;
4599
4600 /* get enclosure_logical_id */
4601 if (sas_device->enclosure_handle && !(mpt2sas_config_get_enclosure_pg0(
4602 ioc, &mpi_reply, &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
4603 sas_device->enclosure_handle)))
4604 sas_device->enclosure_logical_id =
4605 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
4606
4607 /* get device name */
4608 sas_device->device_name = le64_to_cpu(sas_device_pg0.DeviceName);
4609
4610 if (ioc->wait_for_port_enable_to_complete)
4611 _scsih_sas_device_init_add(ioc, sas_device);
4612 else
4613 _scsih_sas_device_add(ioc, sas_device);
4614
4615 return 0;
4616 }
4617
4618 /**
4619 * _scsih_remove_device - removing sas device object
4620 * @ioc: per adapter object
4621 * @sas_device_delete: the sas_device object
4622 *
4623 * Return nothing.
4624 */
4625 static void
4626 _scsih_remove_device(struct MPT2SAS_ADAPTER *ioc,
4627 struct _sas_device *sas_device)
4628 {
4629 struct _sas_device sas_device_backup;
4630 struct MPT2SAS_TARGET *sas_target_priv_data;
4631
4632 if (!sas_device)
4633 return;
4634
4635 memcpy(&sas_device_backup, sas_device, sizeof(struct _sas_device));
4636 _scsih_sas_device_remove(ioc, sas_device);
4637
4638 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter: "
4639 "handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
4640 sas_device_backup.handle, (unsigned long long)
4641 sas_device_backup.sas_address));
4642
4643 if (sas_device_backup.starget && sas_device_backup.starget->hostdata) {
4644 sas_target_priv_data = sas_device_backup.starget->hostdata;
4645 sas_target_priv_data->deleted = 1;
4646 }
4647
4648 _scsih_ublock_io_device(ioc, sas_device_backup.handle);
4649
4650 mpt2sas_transport_port_remove(ioc, sas_device_backup.sas_address,
4651 sas_device_backup.sas_address_parent);
4652
4653 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), sas_addr"
4654 "(0x%016llx)\n", ioc->name, sas_device_backup.handle,
4655 (unsigned long long) sas_device_backup.sas_address);
4656
4657 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit: "
4658 "handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
4659 sas_device_backup.handle, (unsigned long long)
4660 sas_device_backup.sas_address));
4661 }
4662
4663 /**
4664 * mpt2sas_device_remove - removing device object
4665 * @ioc: per adapter object
4666 * @sas_address: expander sas_address
4667 *
4668 * Return nothing.
4669 */
4670 void
4671 mpt2sas_device_remove(struct MPT2SAS_ADAPTER *ioc, u64 sas_address)
4672 {
4673 struct _sas_device *sas_device;
4674 unsigned long flags;
4675
4676 if (ioc->shost_recovery)
4677 return;
4678
4679 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4680 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
4681 sas_address);
4682 if (!sas_device) {
4683 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4684 return;
4685 }
4686 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4687 _scsih_remove_device(ioc, sas_device);
4688 }
4689
4690 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4691 /**
4692 * _scsih_sas_topology_change_event_debug - debug for topology event
4693 * @ioc: per adapter object
4694 * @event_data: event data payload
4695 * Context: user.
4696 */
4697 static void
4698 _scsih_sas_topology_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
4699 Mpi2EventDataSasTopologyChangeList_t *event_data)
4700 {
4701 int i;
4702 u16 handle;
4703 u16 reason_code;
4704 u8 phy_number;
4705 char *status_str = NULL;
4706 u8 link_rate, prev_link_rate;
4707
4708 switch (event_data->ExpStatus) {
4709 case MPI2_EVENT_SAS_TOPO_ES_ADDED:
4710 status_str = "add";
4711 break;
4712 case MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING:
4713 status_str = "remove";
4714 break;
4715 case MPI2_EVENT_SAS_TOPO_ES_RESPONDING:
4716 case 0:
4717 status_str = "responding";
4718 break;
4719 case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
4720 status_str = "remove delay";
4721 break;
4722 default:
4723 status_str = "unknown status";
4724 break;
4725 }
4726 printk(MPT2SAS_INFO_FMT "sas topology change: (%s)\n",
4727 ioc->name, status_str);
4728 printk(KERN_INFO "\thandle(0x%04x), enclosure_handle(0x%04x) "
4729 "start_phy(%02d), count(%d)\n",
4730 le16_to_cpu(event_data->ExpanderDevHandle),
4731 le16_to_cpu(event_data->EnclosureHandle),
4732 event_data->StartPhyNum, event_data->NumEntries);
4733 for (i = 0; i < event_data->NumEntries; i++) {
4734 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
4735 if (!handle)
4736 continue;
4737 phy_number = event_data->StartPhyNum + i;
4738 reason_code = event_data->PHY[i].PhyStatus &
4739 MPI2_EVENT_SAS_TOPO_RC_MASK;
4740 switch (reason_code) {
4741 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
4742 status_str = "target add";
4743 break;
4744 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
4745 status_str = "target remove";
4746 break;
4747 case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
4748 status_str = "delay target remove";
4749 break;
4750 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
4751 status_str = "link rate change";
4752 break;
4753 case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
4754 status_str = "target responding";
4755 break;
4756 default:
4757 status_str = "unknown";
4758 break;
4759 }
4760 link_rate = event_data->PHY[i].LinkRate >> 4;
4761 prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
4762 printk(KERN_INFO "\tphy(%02d), attached_handle(0x%04x): %s:"
4763 " link rate: new(0x%02x), old(0x%02x)\n", phy_number,
4764 handle, status_str, link_rate, prev_link_rate);
4765
4766 }
4767 }
4768 #endif
4769
4770 /**
4771 * _scsih_sas_topology_change_event - handle topology changes
4772 * @ioc: per adapter object
4773 * @fw_event: The fw_event_work object
4774 * Context: user.
4775 *
4776 */
4777 static void
4778 _scsih_sas_topology_change_event(struct MPT2SAS_ADAPTER *ioc,
4779 struct fw_event_work *fw_event)
4780 {
4781 int i;
4782 u16 parent_handle, handle;
4783 u16 reason_code;
4784 u8 phy_number;
4785 struct _sas_node *sas_expander;
4786 struct _sas_device *sas_device;
4787 u64 sas_address;
4788 unsigned long flags;
4789 u8 link_rate, prev_link_rate;
4790 Mpi2EventDataSasTopologyChangeList_t *event_data = fw_event->event_data;
4791
4792 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4793 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4794 _scsih_sas_topology_change_event_debug(ioc, event_data);
4795 #endif
4796
4797 if (ioc->shost_recovery || ioc->remove_host || ioc->pci_error_recovery)
4798 return;
4799
4800 if (!ioc->sas_hba.num_phys)
4801 _scsih_sas_host_add(ioc);
4802 else
4803 _scsih_sas_host_refresh(ioc);
4804
4805 if (fw_event->ignore) {
4806 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "ignoring expander "
4807 "event\n", ioc->name));
4808 return;
4809 }
4810
4811 parent_handle = le16_to_cpu(event_data->ExpanderDevHandle);
4812
4813 /* handle expander add */
4814 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_ADDED)
4815 if (_scsih_expander_add(ioc, parent_handle) != 0)
4816 return;
4817
4818 spin_lock_irqsave(&ioc->sas_node_lock, flags);
4819 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
4820 parent_handle);
4821 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4822 if (sas_expander)
4823 sas_address = sas_expander->sas_address;
4824 else if (parent_handle < ioc->sas_hba.num_phys)
4825 sas_address = ioc->sas_hba.sas_address;
4826 else
4827 return;
4828
4829 /* handle siblings events */
4830 for (i = 0; i < event_data->NumEntries; i++) {
4831 if (fw_event->ignore) {
4832 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "ignoring "
4833 "expander event\n", ioc->name));
4834 return;
4835 }
4836 if (ioc->shost_recovery || ioc->remove_host ||
4837 ioc->pci_error_recovery)
4838 return;
4839 phy_number = event_data->StartPhyNum + i;
4840 reason_code = event_data->PHY[i].PhyStatus &
4841 MPI2_EVENT_SAS_TOPO_RC_MASK;
4842 if ((event_data->PHY[i].PhyStatus &
4843 MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT) && (reason_code !=
4844 MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING))
4845 continue;
4846 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
4847 if (!handle)
4848 continue;
4849 link_rate = event_data->PHY[i].LinkRate >> 4;
4850 prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
4851 switch (reason_code) {
4852 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
4853
4854 if (link_rate == prev_link_rate)
4855 break;
4856
4857 mpt2sas_transport_update_links(ioc, sas_address,
4858 handle, phy_number, link_rate);
4859
4860 if (link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
4861 break;
4862
4863 _scsih_check_device(ioc, handle);
4864 break;
4865 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
4866
4867 mpt2sas_transport_update_links(ioc, sas_address,
4868 handle, phy_number, link_rate);
4869
4870 _scsih_add_device(ioc, handle, phy_number, 0);
4871 break;
4872 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
4873
4874 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4875 sas_device = _scsih_sas_device_find_by_handle(ioc,
4876 handle);
4877 if (!sas_device) {
4878 spin_unlock_irqrestore(&ioc->sas_device_lock,
4879 flags);
4880 break;
4881 }
4882 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4883 _scsih_remove_device(ioc, sas_device);
4884 break;
4885 }
4886 }
4887
4888 /* handle expander removal */
4889 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING &&
4890 sas_expander)
4891 mpt2sas_expander_remove(ioc, sas_address);
4892
4893 }
4894
4895 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4896 /**
4897 * _scsih_sas_device_status_change_event_debug - debug for device event
4898 * @event_data: event data payload
4899 * Context: user.
4900 *
4901 * Return nothing.
4902 */
4903 static void
4904 _scsih_sas_device_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
4905 Mpi2EventDataSasDeviceStatusChange_t *event_data)
4906 {
4907 char *reason_str = NULL;
4908
4909 switch (event_data->ReasonCode) {
4910 case MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA:
4911 reason_str = "smart data";
4912 break;
4913 case MPI2_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED:
4914 reason_str = "unsupported device discovered";
4915 break;
4916 case MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
4917 reason_str = "internal device reset";
4918 break;
4919 case MPI2_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL:
4920 reason_str = "internal task abort";
4921 break;
4922 case MPI2_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL:
4923 reason_str = "internal task abort set";
4924 break;
4925 case MPI2_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL:
4926 reason_str = "internal clear task set";
4927 break;
4928 case MPI2_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL:
4929 reason_str = "internal query task";
4930 break;
4931 case MPI2_EVENT_SAS_DEV_STAT_RC_SATA_INIT_FAILURE:
4932 reason_str = "sata init failure";
4933 break;
4934 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET:
4935 reason_str = "internal device reset complete";
4936 break;
4937 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_TASK_ABORT_INTERNAL:
4938 reason_str = "internal task abort complete";
4939 break;
4940 case MPI2_EVENT_SAS_DEV_STAT_RC_ASYNC_NOTIFICATION:
4941 reason_str = "internal async notification";
4942 break;
4943 case MPI2_EVENT_SAS_DEV_STAT_RC_EXPANDER_REDUCED_FUNCTIONALITY:
4944 reason_str = "expander reduced functionality";
4945 break;
4946 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_EXPANDER_REDUCED_FUNCTIONALITY:
4947 reason_str = "expander reduced functionality complete";
4948 break;
4949 default:
4950 reason_str = "unknown reason";
4951 break;
4952 }
4953 printk(MPT2SAS_INFO_FMT "device status change: (%s)\n"
4954 "\thandle(0x%04x), sas address(0x%016llx)", ioc->name,
4955 reason_str, le16_to_cpu(event_data->DevHandle),
4956 (unsigned long long)le64_to_cpu(event_data->SASAddress));
4957 if (event_data->ReasonCode == MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA)
4958 printk(MPT2SAS_INFO_FMT ", ASC(0x%x), ASCQ(0x%x)\n", ioc->name,
4959 event_data->ASC, event_data->ASCQ);
4960 printk(KERN_INFO "\n");
4961 }
4962 #endif
4963
4964 /**
4965 * _scsih_sas_device_status_change_event - handle device status change
4966 * @ioc: per adapter object
4967 * @fw_event: The fw_event_work object
4968 * Context: user.
4969 *
4970 * Return nothing.
4971 */
4972 static void
4973 _scsih_sas_device_status_change_event(struct MPT2SAS_ADAPTER *ioc,
4974 struct fw_event_work *fw_event)
4975 {
4976 struct MPT2SAS_TARGET *target_priv_data;
4977 struct _sas_device *sas_device;
4978 __le64 sas_address;
4979 unsigned long flags;
4980 Mpi2EventDataSasDeviceStatusChange_t *event_data =
4981 fw_event->event_data;
4982
4983 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4984 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4985 _scsih_sas_device_status_change_event_debug(ioc,
4986 event_data);
4987 #endif
4988
4989 if (event_data->ReasonCode !=
4990 MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET &&
4991 event_data->ReasonCode !=
4992 MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET)
4993 return;
4994
4995 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4996 sas_address = le64_to_cpu(event_data->SASAddress);
4997 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
4998 sas_address);
4999 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5000
5001 if (!sas_device || !sas_device->starget)
5002 return;
5003
5004 target_priv_data = sas_device->starget->hostdata;
5005 if (!target_priv_data)
5006 return;
5007
5008 if (event_data->ReasonCode ==
5009 MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET)
5010 target_priv_data->tm_busy = 1;
5011 else
5012 target_priv_data->tm_busy = 0;
5013 }
5014
5015 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5016 /**
5017 * _scsih_sas_enclosure_dev_status_change_event_debug - debug for enclosure event
5018 * @ioc: per adapter object
5019 * @event_data: event data payload
5020 * Context: user.
5021 *
5022 * Return nothing.
5023 */
5024 static void
5025 _scsih_sas_enclosure_dev_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
5026 Mpi2EventDataSasEnclDevStatusChange_t *event_data)
5027 {
5028 char *reason_str = NULL;
5029
5030 switch (event_data->ReasonCode) {
5031 case MPI2_EVENT_SAS_ENCL_RC_ADDED:
5032 reason_str = "enclosure add";
5033 break;
5034 case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING:
5035 reason_str = "enclosure remove";
5036 break;
5037 default:
5038 reason_str = "unknown reason";
5039 break;
5040 }
5041
5042 printk(MPT2SAS_INFO_FMT "enclosure status change: (%s)\n"
5043 "\thandle(0x%04x), enclosure logical id(0x%016llx)"
5044 " number slots(%d)\n", ioc->name, reason_str,
5045 le16_to_cpu(event_data->EnclosureHandle),
5046 (unsigned long long)le64_to_cpu(event_data->EnclosureLogicalID),
5047 le16_to_cpu(event_data->StartSlot));
5048 }
5049 #endif
5050
5051 /**
5052 * _scsih_sas_enclosure_dev_status_change_event - handle enclosure events
5053 * @ioc: per adapter object
5054 * @fw_event: The fw_event_work object
5055 * Context: user.
5056 *
5057 * Return nothing.
5058 */
5059 static void
5060 _scsih_sas_enclosure_dev_status_change_event(struct MPT2SAS_ADAPTER *ioc,
5061 struct fw_event_work *fw_event)
5062 {
5063 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5064 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5065 _scsih_sas_enclosure_dev_status_change_event_debug(ioc,
5066 fw_event->event_data);
5067 #endif
5068 }
5069
5070 /**
5071 * _scsih_sas_broadcast_primative_event - handle broadcast events
5072 * @ioc: per adapter object
5073 * @fw_event: The fw_event_work object
5074 * Context: user.
5075 *
5076 * Return nothing.
5077 */
5078 static void
5079 _scsih_sas_broadcast_primative_event(struct MPT2SAS_ADAPTER *ioc,
5080 struct fw_event_work *fw_event)
5081 {
5082 struct scsi_cmnd *scmd;
5083 u16 smid, handle;
5084 u32 lun;
5085 struct MPT2SAS_DEVICE *sas_device_priv_data;
5086 u32 termination_count;
5087 u32 query_count;
5088 Mpi2SCSITaskManagementReply_t *mpi_reply;
5089 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5090 Mpi2EventDataSasBroadcastPrimitive_t *event_data = fw_event->event_data;
5091 #endif
5092 u16 ioc_status;
5093 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "broadcast primative: "
5094 "phy number(%d), width(%d)\n", ioc->name, event_data->PhyNum,
5095 event_data->PortWidth));
5096 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name,
5097 __func__));
5098
5099 termination_count = 0;
5100 query_count = 0;
5101 mpi_reply = ioc->tm_cmds.reply;
5102 for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
5103 scmd = _scsih_scsi_lookup_get(ioc, smid);
5104 if (!scmd)
5105 continue;
5106 sas_device_priv_data = scmd->device->hostdata;
5107 if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
5108 continue;
5109 /* skip hidden raid components */
5110 if (sas_device_priv_data->sas_target->flags &
5111 MPT_TARGET_FLAGS_RAID_COMPONENT)
5112 continue;
5113 /* skip volumes */
5114 if (sas_device_priv_data->sas_target->flags &
5115 MPT_TARGET_FLAGS_VOLUME)
5116 continue;
5117
5118 handle = sas_device_priv_data->sas_target->handle;
5119 lun = sas_device_priv_data->lun;
5120 query_count++;
5121
5122 mpt2sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
5123 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30, NULL);
5124 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
5125 ioc_status = le16_to_cpu(mpi_reply->IOCStatus)
5126 & MPI2_IOCSTATUS_MASK;
5127 if ((ioc_status == MPI2_IOCSTATUS_SUCCESS) &&
5128 (mpi_reply->ResponseCode ==
5129 MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
5130 mpi_reply->ResponseCode ==
5131 MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC))
5132 continue;
5133
5134 mpt2sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
5135 MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET, 0, 30, NULL);
5136 termination_count += le32_to_cpu(mpi_reply->TerminationCount);
5137 }
5138 ioc->broadcast_aen_busy = 0;
5139
5140 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT
5141 "%s - exit, query_count = %d termination_count = %d\n",
5142 ioc->name, __func__, query_count, termination_count));
5143 }
5144
5145 /**
5146 * _scsih_sas_discovery_event - handle discovery events
5147 * @ioc: per adapter object
5148 * @fw_event: The fw_event_work object
5149 * Context: user.
5150 *
5151 * Return nothing.
5152 */
5153 static void
5154 _scsih_sas_discovery_event(struct MPT2SAS_ADAPTER *ioc,
5155 struct fw_event_work *fw_event)
5156 {
5157 Mpi2EventDataSasDiscovery_t *event_data = fw_event->event_data;
5158
5159 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5160 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) {
5161 printk(MPT2SAS_INFO_FMT "discovery event: (%s)", ioc->name,
5162 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
5163 "start" : "stop");
5164 if (event_data->DiscoveryStatus)
5165 printk("discovery_status(0x%08x)",
5166 le32_to_cpu(event_data->DiscoveryStatus));
5167 printk("\n");
5168 }
5169 #endif
5170
5171 if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED &&
5172 !ioc->sas_hba.num_phys)
5173 _scsih_sas_host_add(ioc);
5174 }
5175
5176 /**
5177 * _scsih_reprobe_lun - reprobing lun
5178 * @sdev: scsi device struct
5179 * @no_uld_attach: sdev->no_uld_attach flag setting
5180 *
5181 **/
5182 static void
5183 _scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach)
5184 {
5185 int rc;
5186
5187 sdev->no_uld_attach = no_uld_attach ? 1 : 0;
5188 sdev_printk(KERN_INFO, sdev, "%s raid component\n",
5189 sdev->no_uld_attach ? "hidding" : "exposing");
5190 rc = scsi_device_reprobe(sdev);
5191 }
5192
5193 /**
5194 * _scsih_reprobe_target - reprobing target
5195 * @starget: scsi target struct
5196 * @no_uld_attach: sdev->no_uld_attach flag setting
5197 *
5198 * Note: no_uld_attach flag determines whether the disk device is attached
5199 * to block layer. A value of `1` means to not attach.
5200 **/
5201 static void
5202 _scsih_reprobe_target(struct scsi_target *starget, int no_uld_attach)
5203 {
5204 struct MPT2SAS_TARGET *sas_target_priv_data = starget->hostdata;
5205
5206 if (no_uld_attach)
5207 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_RAID_COMPONENT;
5208 else
5209 sas_target_priv_data->flags &= ~MPT_TARGET_FLAGS_RAID_COMPONENT;
5210
5211 starget_for_each_device(starget, no_uld_attach ? (void *)1 : NULL,
5212 _scsih_reprobe_lun);
5213 }
5214 /**
5215 * _scsih_sas_volume_add - add new volume
5216 * @ioc: per adapter object
5217 * @element: IR config element data
5218 * Context: user.
5219 *
5220 * Return nothing.
5221 */
5222 static void
5223 _scsih_sas_volume_add(struct MPT2SAS_ADAPTER *ioc,
5224 Mpi2EventIrConfigElement_t *element)
5225 {
5226 struct _raid_device *raid_device;
5227 unsigned long flags;
5228 u64 wwid;
5229 u16 handle = le16_to_cpu(element->VolDevHandle);
5230 int rc;
5231
5232 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
5233 if (!wwid) {
5234 printk(MPT2SAS_ERR_FMT
5235 "failure at %s:%d/%s()!\n", ioc->name,
5236 __FILE__, __LINE__, __func__);
5237 return;
5238 }
5239
5240 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5241 raid_device = _scsih_raid_device_find_by_wwid(ioc, wwid);
5242 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5243
5244 if (raid_device)
5245 return;
5246
5247 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
5248 if (!raid_device) {
5249 printk(MPT2SAS_ERR_FMT
5250 "failure at %s:%d/%s()!\n", ioc->name,
5251 __FILE__, __LINE__, __func__);
5252 return;
5253 }
5254
5255 raid_device->id = ioc->sas_id++;
5256 raid_device->channel = RAID_CHANNEL;
5257 raid_device->handle = handle;
5258 raid_device->wwid = wwid;
5259 _scsih_raid_device_add(ioc, raid_device);
5260 if (!ioc->wait_for_port_enable_to_complete) {
5261 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
5262 raid_device->id, 0);
5263 if (rc)
5264 _scsih_raid_device_remove(ioc, raid_device);
5265 } else
5266 _scsih_determine_boot_device(ioc, raid_device, 1);
5267 }
5268
5269 /**
5270 * _scsih_sas_volume_delete - delete volume
5271 * @ioc: per adapter object
5272 * @handle: volume device handle
5273 * Context: user.
5274 *
5275 * Return nothing.
5276 */
5277 static void
5278 _scsih_sas_volume_delete(struct MPT2SAS_ADAPTER *ioc, u16 handle)
5279 {
5280 struct _raid_device *raid_device;
5281 unsigned long flags;
5282 struct MPT2SAS_TARGET *sas_target_priv_data;
5283
5284 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5285 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
5286 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5287 if (!raid_device)
5288 return;
5289 if (raid_device->starget) {
5290 sas_target_priv_data = raid_device->starget->hostdata;
5291 sas_target_priv_data->deleted = 1;
5292 scsi_remove_target(&raid_device->starget->dev);
5293 }
5294 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), wwid"
5295 "(0x%016llx)\n", ioc->name, raid_device->handle,
5296 (unsigned long long) raid_device->wwid);
5297 _scsih_raid_device_remove(ioc, raid_device);
5298 }
5299
5300 /**
5301 * _scsih_sas_pd_expose - expose pd component to /dev/sdX
5302 * @ioc: per adapter object
5303 * @element: IR config element data
5304 * Context: user.
5305 *
5306 * Return nothing.
5307 */
5308 static void
5309 _scsih_sas_pd_expose(struct MPT2SAS_ADAPTER *ioc,
5310 Mpi2EventIrConfigElement_t *element)
5311 {
5312 struct _sas_device *sas_device;
5313 unsigned long flags;
5314 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5315
5316 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5317 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5318 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5319 if (!sas_device)
5320 return;
5321
5322 /* exposing raid component */
5323 sas_device->volume_handle = 0;
5324 sas_device->volume_wwid = 0;
5325 clear_bit(handle, ioc->pd_handles);
5326 _scsih_reprobe_target(sas_device->starget, 0);
5327 }
5328
5329 /**
5330 * _scsih_sas_pd_hide - hide pd component from /dev/sdX
5331 * @ioc: per adapter object
5332 * @element: IR config element data
5333 * Context: user.
5334 *
5335 * Return nothing.
5336 */
5337 static void
5338 _scsih_sas_pd_hide(struct MPT2SAS_ADAPTER *ioc,
5339 Mpi2EventIrConfigElement_t *element)
5340 {
5341 struct _sas_device *sas_device;
5342 unsigned long flags;
5343 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5344
5345 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5346 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5347 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5348 if (!sas_device)
5349 return;
5350
5351 /* hiding raid component */
5352 mpt2sas_config_get_volume_handle(ioc, handle,
5353 &sas_device->volume_handle);
5354 mpt2sas_config_get_volume_wwid(ioc, sas_device->volume_handle,
5355 &sas_device->volume_wwid);
5356 set_bit(handle, ioc->pd_handles);
5357 _scsih_reprobe_target(sas_device->starget, 1);
5358 }
5359
5360 /**
5361 * _scsih_sas_pd_delete - delete pd component
5362 * @ioc: per adapter object
5363 * @element: IR config element data
5364 * Context: user.
5365 *
5366 * Return nothing.
5367 */
5368 static void
5369 _scsih_sas_pd_delete(struct MPT2SAS_ADAPTER *ioc,
5370 Mpi2EventIrConfigElement_t *element)
5371 {
5372 struct _sas_device *sas_device;
5373 unsigned long flags;
5374 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5375
5376 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5377 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5378 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5379 if (!sas_device)
5380 return;
5381 _scsih_remove_device(ioc, sas_device);
5382 }
5383
5384 /**
5385 * _scsih_sas_pd_add - remove pd component
5386 * @ioc: per adapter object
5387 * @element: IR config element data
5388 * Context: user.
5389 *
5390 * Return nothing.
5391 */
5392 static void
5393 _scsih_sas_pd_add(struct MPT2SAS_ADAPTER *ioc,
5394 Mpi2EventIrConfigElement_t *element)
5395 {
5396 struct _sas_device *sas_device;
5397 unsigned long flags;
5398 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5399 Mpi2ConfigReply_t mpi_reply;
5400 Mpi2SasDevicePage0_t sas_device_pg0;
5401 u32 ioc_status;
5402 u64 sas_address;
5403 u16 parent_handle;
5404
5405 set_bit(handle, ioc->pd_handles);
5406
5407 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5408 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5409 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5410 if (sas_device)
5411 return;
5412
5413 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
5414 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
5415 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5416 ioc->name, __FILE__, __LINE__, __func__);
5417 return;
5418 }
5419
5420 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5421 MPI2_IOCSTATUS_MASK;
5422 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
5423 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5424 ioc->name, __FILE__, __LINE__, __func__);
5425 return;
5426 }
5427
5428 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
5429 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
5430 mpt2sas_transport_update_links(ioc, sas_address, handle,
5431 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
5432
5433 _scsih_add_device(ioc, handle, 0, 1);
5434 }
5435
5436 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5437 /**
5438 * _scsih_sas_ir_config_change_event_debug - debug for IR Config Change events
5439 * @ioc: per adapter object
5440 * @event_data: event data payload
5441 * Context: user.
5442 *
5443 * Return nothing.
5444 */
5445 static void
5446 _scsih_sas_ir_config_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
5447 Mpi2EventDataIrConfigChangeList_t *event_data)
5448 {
5449 Mpi2EventIrConfigElement_t *element;
5450 u8 element_type;
5451 int i;
5452 char *reason_str = NULL, *element_str = NULL;
5453
5454 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
5455
5456 printk(MPT2SAS_INFO_FMT "raid config change: (%s), elements(%d)\n",
5457 ioc->name, (le32_to_cpu(event_data->Flags) &
5458 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ?
5459 "foreign" : "native", event_data->NumElements);
5460 for (i = 0; i < event_data->NumElements; i++, element++) {
5461 switch (element->ReasonCode) {
5462 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
5463 reason_str = "add";
5464 break;
5465 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
5466 reason_str = "remove";
5467 break;
5468 case MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE:
5469 reason_str = "no change";
5470 break;
5471 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
5472 reason_str = "hide";
5473 break;
5474 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
5475 reason_str = "unhide";
5476 break;
5477 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
5478 reason_str = "volume_created";
5479 break;
5480 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
5481 reason_str = "volume_deleted";
5482 break;
5483 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
5484 reason_str = "pd_created";
5485 break;
5486 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
5487 reason_str = "pd_deleted";
5488 break;
5489 default:
5490 reason_str = "unknown reason";
5491 break;
5492 }
5493 element_type = le16_to_cpu(element->ElementFlags) &
5494 MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
5495 switch (element_type) {
5496 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT:
5497 element_str = "volume";
5498 break;
5499 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT:
5500 element_str = "phys disk";
5501 break;
5502 case MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT:
5503 element_str = "hot spare";
5504 break;
5505 default:
5506 element_str = "unknown element";
5507 break;
5508 }
5509 printk(KERN_INFO "\t(%s:%s), vol handle(0x%04x), "
5510 "pd handle(0x%04x), pd num(0x%02x)\n", element_str,
5511 reason_str, le16_to_cpu(element->VolDevHandle),
5512 le16_to_cpu(element->PhysDiskDevHandle),
5513 element->PhysDiskNum);
5514 }
5515 }
5516 #endif
5517
5518 /**
5519 * _scsih_sas_ir_config_change_event - handle ir configuration change events
5520 * @ioc: per adapter object
5521 * @fw_event: The fw_event_work object
5522 * Context: user.
5523 *
5524 * Return nothing.
5525 */
5526 static void
5527 _scsih_sas_ir_config_change_event(struct MPT2SAS_ADAPTER *ioc,
5528 struct fw_event_work *fw_event)
5529 {
5530 Mpi2EventIrConfigElement_t *element;
5531 int i;
5532 u8 foreign_config;
5533 Mpi2EventDataIrConfigChangeList_t *event_data = fw_event->event_data;
5534
5535 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5536 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5537 _scsih_sas_ir_config_change_event_debug(ioc, event_data);
5538
5539 #endif
5540 foreign_config = (le32_to_cpu(event_data->Flags) &
5541 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
5542
5543 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
5544 for (i = 0; i < event_data->NumElements; i++, element++) {
5545
5546 switch (element->ReasonCode) {
5547 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
5548 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
5549 if (!foreign_config)
5550 _scsih_sas_volume_add(ioc, element);
5551 break;
5552 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
5553 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
5554 if (!foreign_config)
5555 _scsih_sas_volume_delete(ioc,
5556 le16_to_cpu(element->VolDevHandle));
5557 break;
5558 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
5559 _scsih_sas_pd_hide(ioc, element);
5560 break;
5561 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
5562 _scsih_sas_pd_expose(ioc, element);
5563 break;
5564 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
5565 _scsih_sas_pd_add(ioc, element);
5566 break;
5567 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
5568 _scsih_sas_pd_delete(ioc, element);
5569 break;
5570 }
5571 }
5572 }
5573
5574 /**
5575 * _scsih_sas_ir_volume_event - IR volume event
5576 * @ioc: per adapter object
5577 * @fw_event: The fw_event_work object
5578 * Context: user.
5579 *
5580 * Return nothing.
5581 */
5582 static void
5583 _scsih_sas_ir_volume_event(struct MPT2SAS_ADAPTER *ioc,
5584 struct fw_event_work *fw_event)
5585 {
5586 u64 wwid;
5587 unsigned long flags;
5588 struct _raid_device *raid_device;
5589 u16 handle;
5590 u32 state;
5591 int rc;
5592 Mpi2EventDataIrVolume_t *event_data = fw_event->event_data;
5593
5594 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
5595 return;
5596
5597 handle = le16_to_cpu(event_data->VolDevHandle);
5598 state = le32_to_cpu(event_data->NewValue);
5599 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle(0x%04x), "
5600 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
5601 le32_to_cpu(event_data->PreviousValue), state));
5602
5603 switch (state) {
5604 case MPI2_RAID_VOL_STATE_MISSING:
5605 case MPI2_RAID_VOL_STATE_FAILED:
5606 _scsih_sas_volume_delete(ioc, handle);
5607 break;
5608
5609 case MPI2_RAID_VOL_STATE_ONLINE:
5610 case MPI2_RAID_VOL_STATE_DEGRADED:
5611 case MPI2_RAID_VOL_STATE_OPTIMAL:
5612
5613 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5614 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
5615 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5616
5617 if (raid_device)
5618 break;
5619
5620 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
5621 if (!wwid) {
5622 printk(MPT2SAS_ERR_FMT
5623 "failure at %s:%d/%s()!\n", ioc->name,
5624 __FILE__, __LINE__, __func__);
5625 break;
5626 }
5627
5628 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
5629 if (!raid_device) {
5630 printk(MPT2SAS_ERR_FMT
5631 "failure at %s:%d/%s()!\n", ioc->name,
5632 __FILE__, __LINE__, __func__);
5633 break;
5634 }
5635
5636 raid_device->id = ioc->sas_id++;
5637 raid_device->channel = RAID_CHANNEL;
5638 raid_device->handle = handle;
5639 raid_device->wwid = wwid;
5640 _scsih_raid_device_add(ioc, raid_device);
5641 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
5642 raid_device->id, 0);
5643 if (rc)
5644 _scsih_raid_device_remove(ioc, raid_device);
5645 break;
5646
5647 case MPI2_RAID_VOL_STATE_INITIALIZING:
5648 default:
5649 break;
5650 }
5651 }
5652
5653 /**
5654 * _scsih_sas_ir_physical_disk_event - PD event
5655 * @ioc: per adapter object
5656 * @fw_event: The fw_event_work object
5657 * Context: user.
5658 *
5659 * Return nothing.
5660 */
5661 static void
5662 _scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc,
5663 struct fw_event_work *fw_event)
5664 {
5665 u16 handle, parent_handle;
5666 u32 state;
5667 struct _sas_device *sas_device;
5668 unsigned long flags;
5669 Mpi2ConfigReply_t mpi_reply;
5670 Mpi2SasDevicePage0_t sas_device_pg0;
5671 u32 ioc_status;
5672 Mpi2EventDataIrPhysicalDisk_t *event_data = fw_event->event_data;
5673 u64 sas_address;
5674
5675 if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED)
5676 return;
5677
5678 handle = le16_to_cpu(event_data->PhysDiskDevHandle);
5679 state = le32_to_cpu(event_data->NewValue);
5680
5681 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle(0x%04x), "
5682 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
5683 le32_to_cpu(event_data->PreviousValue), state));
5684
5685 switch (state) {
5686 case MPI2_RAID_PD_STATE_ONLINE:
5687 case MPI2_RAID_PD_STATE_DEGRADED:
5688 case MPI2_RAID_PD_STATE_REBUILDING:
5689 case MPI2_RAID_PD_STATE_OPTIMAL:
5690 case MPI2_RAID_PD_STATE_HOT_SPARE:
5691
5692 set_bit(handle, ioc->pd_handles);
5693
5694 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5695 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5696 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5697
5698 if (sas_device)
5699 return;
5700
5701 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
5702 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
5703 handle))) {
5704 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5705 ioc->name, __FILE__, __LINE__, __func__);
5706 return;
5707 }
5708
5709 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5710 MPI2_IOCSTATUS_MASK;
5711 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
5712 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5713 ioc->name, __FILE__, __LINE__, __func__);
5714 return;
5715 }
5716
5717 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
5718 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
5719 mpt2sas_transport_update_links(ioc, sas_address, handle,
5720 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
5721
5722 _scsih_add_device(ioc, handle, 0, 1);
5723
5724 break;
5725
5726 case MPI2_RAID_PD_STATE_OFFLINE:
5727 case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
5728 case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
5729 default:
5730 break;
5731 }
5732 }
5733
5734 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5735 /**
5736 * _scsih_sas_ir_operation_status_event_debug - debug for IR op event
5737 * @ioc: per adapter object
5738 * @event_data: event data payload
5739 * Context: user.
5740 *
5741 * Return nothing.
5742 */
5743 static void
5744 _scsih_sas_ir_operation_status_event_debug(struct MPT2SAS_ADAPTER *ioc,
5745 Mpi2EventDataIrOperationStatus_t *event_data)
5746 {
5747 char *reason_str = NULL;
5748
5749 switch (event_data->RAIDOperation) {
5750 case MPI2_EVENT_IR_RAIDOP_RESYNC:
5751 reason_str = "resync";
5752 break;
5753 case MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION:
5754 reason_str = "online capacity expansion";
5755 break;
5756 case MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK:
5757 reason_str = "consistency check";
5758 break;
5759 case MPI2_EVENT_IR_RAIDOP_BACKGROUND_INIT:
5760 reason_str = "background init";
5761 break;
5762 case MPI2_EVENT_IR_RAIDOP_MAKE_DATA_CONSISTENT:
5763 reason_str = "make data consistent";
5764 break;
5765 }
5766
5767 if (!reason_str)
5768 return;
5769
5770 printk(MPT2SAS_INFO_FMT "raid operational status: (%s)"
5771 "\thandle(0x%04x), percent complete(%d)\n",
5772 ioc->name, reason_str,
5773 le16_to_cpu(event_data->VolDevHandle),
5774 event_data->PercentComplete);
5775 }
5776 #endif
5777
5778 /**
5779 * _scsih_sas_ir_operation_status_event - handle RAID operation events
5780 * @ioc: per adapter object
5781 * @fw_event: The fw_event_work object
5782 * Context: user.
5783 *
5784 * Return nothing.
5785 */
5786 static void
5787 _scsih_sas_ir_operation_status_event(struct MPT2SAS_ADAPTER *ioc,
5788 struct fw_event_work *fw_event)
5789 {
5790 Mpi2EventDataIrOperationStatus_t *event_data = fw_event->event_data;
5791 static struct _raid_device *raid_device;
5792 unsigned long flags;
5793 u16 handle;
5794
5795 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5796 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5797 _scsih_sas_ir_operation_status_event_debug(ioc,
5798 event_data);
5799 #endif
5800
5801 /* code added for raid transport support */
5802 if (event_data->RAIDOperation == MPI2_EVENT_IR_RAIDOP_RESYNC) {
5803
5804 handle = le16_to_cpu(event_data->VolDevHandle);
5805
5806 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5807 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
5808 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5809
5810 if (!raid_device)
5811 return;
5812
5813 if (event_data->RAIDOperation == MPI2_EVENT_IR_RAIDOP_RESYNC)
5814 raid_device->percent_complete =
5815 event_data->PercentComplete;
5816 }
5817 }
5818
5819 /**
5820 * _scsih_prep_device_scan - initialize parameters prior to device scan
5821 * @ioc: per adapter object
5822 *
5823 * Set the deleted flag prior to device scan. If the device is found during
5824 * the scan, then we clear the deleted flag.
5825 */
5826 static void
5827 _scsih_prep_device_scan(struct MPT2SAS_ADAPTER *ioc)
5828 {
5829 struct MPT2SAS_DEVICE *sas_device_priv_data;
5830 struct scsi_device *sdev;
5831
5832 shost_for_each_device(sdev, ioc->shost) {
5833 sas_device_priv_data = sdev->hostdata;
5834 if (sas_device_priv_data && sas_device_priv_data->sas_target)
5835 sas_device_priv_data->sas_target->deleted = 1;
5836 }
5837 }
5838
5839 /**
5840 * _scsih_mark_responding_sas_device - mark a sas_devices as responding
5841 * @ioc: per adapter object
5842 * @sas_address: sas address
5843 * @slot: enclosure slot id
5844 * @handle: device handle
5845 *
5846 * After host reset, find out whether devices are still responding.
5847 * Used in _scsi_remove_unresponsive_sas_devices.
5848 *
5849 * Return nothing.
5850 */
5851 static void
5852 _scsih_mark_responding_sas_device(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
5853 u16 slot, u16 handle)
5854 {
5855 struct MPT2SAS_TARGET *sas_target_priv_data;
5856 struct scsi_target *starget;
5857 struct _sas_device *sas_device;
5858 unsigned long flags;
5859
5860 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5861 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
5862 if (sas_device->sas_address == sas_address &&
5863 sas_device->slot == slot && sas_device->starget) {
5864 sas_device->responding = 1;
5865 starget = sas_device->starget;
5866 if (starget && starget->hostdata) {
5867 sas_target_priv_data = starget->hostdata;
5868 sas_target_priv_data->tm_busy = 0;
5869 sas_target_priv_data->deleted = 0;
5870 } else
5871 sas_target_priv_data = NULL;
5872 starget_printk(KERN_INFO, sas_device->starget,
5873 "handle(0x%04x), sas_addr(0x%016llx), enclosure "
5874 "logical id(0x%016llx), slot(%d)\n", handle,
5875 (unsigned long long)sas_device->sas_address,
5876 (unsigned long long)
5877 sas_device->enclosure_logical_id,
5878 sas_device->slot);
5879 if (sas_device->handle == handle)
5880 goto out;
5881 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
5882 sas_device->handle);
5883 sas_device->handle = handle;
5884 if (sas_target_priv_data)
5885 sas_target_priv_data->handle = handle;
5886 goto out;
5887 }
5888 }
5889 out:
5890 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5891 }
5892
5893 /**
5894 * _scsih_search_responding_sas_devices -
5895 * @ioc: per adapter object
5896 *
5897 * After host reset, find out whether devices are still responding.
5898 * If not remove.
5899 *
5900 * Return nothing.
5901 */
5902 static void
5903 _scsih_search_responding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
5904 {
5905 Mpi2SasDevicePage0_t sas_device_pg0;
5906 Mpi2ConfigReply_t mpi_reply;
5907 u16 ioc_status;
5908 __le64 sas_address;
5909 u16 handle;
5910 u32 device_info;
5911 u16 slot;
5912
5913 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
5914
5915 if (list_empty(&ioc->sas_device_list))
5916 return;
5917
5918 handle = 0xFFFF;
5919 while (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
5920 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
5921 handle))) {
5922 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5923 MPI2_IOCSTATUS_MASK;
5924 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
5925 break;
5926 handle = le16_to_cpu(sas_device_pg0.DevHandle);
5927 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
5928 if (!(_scsih_is_end_device(device_info)))
5929 continue;
5930 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
5931 slot = le16_to_cpu(sas_device_pg0.Slot);
5932 _scsih_mark_responding_sas_device(ioc, sas_address, slot,
5933 handle);
5934 }
5935 }
5936
5937 /**
5938 * _scsih_mark_responding_raid_device - mark a raid_device as responding
5939 * @ioc: per adapter object
5940 * @wwid: world wide identifier for raid volume
5941 * @handle: device handle
5942 *
5943 * After host reset, find out whether devices are still responding.
5944 * Used in _scsi_remove_unresponsive_raid_devices.
5945 *
5946 * Return nothing.
5947 */
5948 static void
5949 _scsih_mark_responding_raid_device(struct MPT2SAS_ADAPTER *ioc, u64 wwid,
5950 u16 handle)
5951 {
5952 struct MPT2SAS_TARGET *sas_target_priv_data;
5953 struct scsi_target *starget;
5954 struct _raid_device *raid_device;
5955 unsigned long flags;
5956
5957 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5958 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
5959 if (raid_device->wwid == wwid && raid_device->starget) {
5960 starget = raid_device->starget;
5961 if (starget && starget->hostdata) {
5962 sas_target_priv_data = starget->hostdata;
5963 sas_target_priv_data->deleted = 0;
5964 } else
5965 sas_target_priv_data = NULL;
5966 raid_device->responding = 1;
5967 starget_printk(KERN_INFO, raid_device->starget,
5968 "handle(0x%04x), wwid(0x%016llx)\n", handle,
5969 (unsigned long long)raid_device->wwid);
5970 if (raid_device->handle == handle)
5971 goto out;
5972 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
5973 raid_device->handle);
5974 raid_device->handle = handle;
5975 if (sas_target_priv_data)
5976 sas_target_priv_data->handle = handle;
5977 goto out;
5978 }
5979 }
5980 out:
5981 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5982 }
5983
5984 /**
5985 * _scsih_search_responding_raid_devices -
5986 * @ioc: per adapter object
5987 *
5988 * After host reset, find out whether devices are still responding.
5989 * If not remove.
5990 *
5991 * Return nothing.
5992 */
5993 static void
5994 _scsih_search_responding_raid_devices(struct MPT2SAS_ADAPTER *ioc)
5995 {
5996 Mpi2RaidVolPage1_t volume_pg1;
5997 Mpi2RaidVolPage0_t volume_pg0;
5998 Mpi2RaidPhysDiskPage0_t pd_pg0;
5999 Mpi2ConfigReply_t mpi_reply;
6000 u16 ioc_status;
6001 u16 handle;
6002 u8 phys_disk_num;
6003
6004 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
6005
6006 if (list_empty(&ioc->raid_device_list))
6007 return;
6008
6009 handle = 0xFFFF;
6010 while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
6011 &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
6012 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6013 MPI2_IOCSTATUS_MASK;
6014 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
6015 break;
6016 handle = le16_to_cpu(volume_pg1.DevHandle);
6017
6018 if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
6019 &volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
6020 sizeof(Mpi2RaidVolPage0_t)))
6021 continue;
6022
6023 if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
6024 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
6025 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED)
6026 _scsih_mark_responding_raid_device(ioc,
6027 le64_to_cpu(volume_pg1.WWID), handle);
6028 }
6029
6030 /* refresh the pd_handles */
6031 phys_disk_num = 0xFF;
6032 memset(ioc->pd_handles, 0, ioc->pd_handles_sz);
6033 while (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
6034 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
6035 phys_disk_num))) {
6036 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6037 MPI2_IOCSTATUS_MASK;
6038 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
6039 break;
6040 phys_disk_num = pd_pg0.PhysDiskNum;
6041 handle = le16_to_cpu(pd_pg0.DevHandle);
6042 set_bit(handle, ioc->pd_handles);
6043 }
6044 }
6045
6046 /**
6047 * _scsih_mark_responding_expander - mark a expander as responding
6048 * @ioc: per adapter object
6049 * @sas_address: sas address
6050 * @handle:
6051 *
6052 * After host reset, find out whether devices are still responding.
6053 * Used in _scsi_remove_unresponsive_expanders.
6054 *
6055 * Return nothing.
6056 */
6057 static void
6058 _scsih_mark_responding_expander(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
6059 u16 handle)
6060 {
6061 struct _sas_node *sas_expander;
6062 unsigned long flags;
6063 int i;
6064
6065 spin_lock_irqsave(&ioc->sas_node_lock, flags);
6066 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
6067 if (sas_expander->sas_address != sas_address)
6068 continue;
6069 sas_expander->responding = 1;
6070 if (sas_expander->handle == handle)
6071 goto out;
6072 printk(KERN_INFO "\texpander(0x%016llx): handle changed"
6073 " from(0x%04x) to (0x%04x)!!!\n",
6074 (unsigned long long)sas_expander->sas_address,
6075 sas_expander->handle, handle);
6076 sas_expander->handle = handle;
6077 for (i = 0 ; i < sas_expander->num_phys ; i++)
6078 sas_expander->phy[i].handle = handle;
6079 goto out;
6080 }
6081 out:
6082 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
6083 }
6084
6085 /**
6086 * _scsih_search_responding_expanders -
6087 * @ioc: per adapter object
6088 *
6089 * After host reset, find out whether devices are still responding.
6090 * If not remove.
6091 *
6092 * Return nothing.
6093 */
6094 static void
6095 _scsih_search_responding_expanders(struct MPT2SAS_ADAPTER *ioc)
6096 {
6097 Mpi2ExpanderPage0_t expander_pg0;
6098 Mpi2ConfigReply_t mpi_reply;
6099 u16 ioc_status;
6100 __le64 sas_address;
6101 u16 handle;
6102
6103 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
6104
6105 if (list_empty(&ioc->sas_expander_list))
6106 return;
6107
6108 handle = 0xFFFF;
6109 while (!(mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
6110 MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
6111
6112 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6113 MPI2_IOCSTATUS_MASK;
6114 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
6115 break;
6116
6117 handle = le16_to_cpu(expander_pg0.DevHandle);
6118 sas_address = le64_to_cpu(expander_pg0.SASAddress);
6119 printk(KERN_INFO "\texpander present: handle(0x%04x), "
6120 "sas_addr(0x%016llx)\n", handle,
6121 (unsigned long long)sas_address);
6122 _scsih_mark_responding_expander(ioc, sas_address, handle);
6123 }
6124
6125 }
6126
6127 /**
6128 * _scsih_remove_unresponding_sas_devices - removing unresponding devices
6129 * @ioc: per adapter object
6130 *
6131 * Return nothing.
6132 */
6133 static void
6134 _scsih_remove_unresponding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
6135 {
6136 struct _sas_device *sas_device, *sas_device_next;
6137 struct _sas_node *sas_expander;
6138 struct _raid_device *raid_device, *raid_device_next;
6139
6140
6141 list_for_each_entry_safe(sas_device, sas_device_next,
6142 &ioc->sas_device_list, list) {
6143 if (sas_device->responding) {
6144 sas_device->responding = 0;
6145 continue;
6146 }
6147 if (sas_device->starget)
6148 starget_printk(KERN_INFO, sas_device->starget,
6149 "removing: handle(0x%04x), sas_addr(0x%016llx), "
6150 "enclosure logical id(0x%016llx), slot(%d)\n",
6151 sas_device->handle,
6152 (unsigned long long)sas_device->sas_address,
6153 (unsigned long long)
6154 sas_device->enclosure_logical_id,
6155 sas_device->slot);
6156 _scsih_remove_device(ioc, sas_device);
6157 }
6158
6159 list_for_each_entry_safe(raid_device, raid_device_next,
6160 &ioc->raid_device_list, list) {
6161 if (raid_device->responding) {
6162 raid_device->responding = 0;
6163 continue;
6164 }
6165 if (raid_device->starget) {
6166 starget_printk(KERN_INFO, raid_device->starget,
6167 "removing: handle(0x%04x), wwid(0x%016llx)\n",
6168 raid_device->handle,
6169 (unsigned long long)raid_device->wwid);
6170 scsi_remove_target(&raid_device->starget->dev);
6171 }
6172 _scsih_raid_device_remove(ioc, raid_device);
6173 }
6174
6175 retry_expander_search:
6176 sas_expander = NULL;
6177 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
6178 if (sas_expander->responding) {
6179 sas_expander->responding = 0;
6180 continue;
6181 }
6182 mpt2sas_expander_remove(ioc, sas_expander->sas_address);
6183 goto retry_expander_search;
6184 }
6185 }
6186
6187 /**
6188 * mpt2sas_scsih_reset_handler - reset callback handler (for scsih)
6189 * @ioc: per adapter object
6190 * @reset_phase: phase
6191 *
6192 * The handler for doing any required cleanup or initialization.
6193 *
6194 * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
6195 * MPT2_IOC_DONE_RESET
6196 *
6197 * Return nothing.
6198 */
6199 void
6200 mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
6201 {
6202 switch (reset_phase) {
6203 case MPT2_IOC_PRE_RESET:
6204 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
6205 "MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
6206 break;
6207 case MPT2_IOC_AFTER_RESET:
6208 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
6209 "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
6210 if (ioc->scsih_cmds.status & MPT2_CMD_PENDING) {
6211 ioc->scsih_cmds.status |= MPT2_CMD_RESET;
6212 mpt2sas_base_free_smid(ioc, ioc->scsih_cmds.smid);
6213 complete(&ioc->scsih_cmds.done);
6214 }
6215 if (ioc->tm_cmds.status & MPT2_CMD_PENDING) {
6216 ioc->tm_cmds.status |= MPT2_CMD_RESET;
6217 mpt2sas_base_free_smid(ioc, ioc->tm_cmds.smid);
6218 complete(&ioc->tm_cmds.done);
6219 }
6220 _scsih_fw_event_cleanup_queue(ioc);
6221 _scsih_flush_running_cmds(ioc);
6222 _scsih_queue_rescan(ioc);
6223 break;
6224 case MPT2_IOC_DONE_RESET:
6225 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
6226 "MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
6227 _scsih_sas_host_refresh(ioc);
6228 _scsih_prep_device_scan(ioc);
6229 _scsih_search_responding_sas_devices(ioc);
6230 _scsih_search_responding_raid_devices(ioc);
6231 _scsih_search_responding_expanders(ioc);
6232 break;
6233 }
6234 }
6235
6236 /**
6237 * _firmware_event_work - delayed task for processing firmware events
6238 * @ioc: per adapter object
6239 * @work: equal to the fw_event_work object
6240 * Context: user.
6241 *
6242 * Return nothing.
6243 */
6244 static void
6245 _firmware_event_work(struct work_struct *work)
6246 {
6247 struct fw_event_work *fw_event = container_of(work,
6248 struct fw_event_work, delayed_work.work);
6249 unsigned long flags;
6250 struct MPT2SAS_ADAPTER *ioc = fw_event->ioc;
6251
6252 /* the queue is being flushed so ignore this event */
6253 if (ioc->remove_host || fw_event->cancel_pending_work ||
6254 ioc->pci_error_recovery) {
6255 _scsih_fw_event_free(ioc, fw_event);
6256 return;
6257 }
6258
6259 if (fw_event->event == MPT2SAS_RESCAN_AFTER_HOST_RESET) {
6260 _scsih_fw_event_free(ioc, fw_event);
6261 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
6262 if (ioc->shost_recovery) {
6263 init_completion(&ioc->shost_recovery_done);
6264 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock,
6265 flags);
6266 wait_for_completion(&ioc->shost_recovery_done);
6267 } else
6268 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock,
6269 flags);
6270 _scsih_remove_unresponding_sas_devices(ioc);
6271 return;
6272 }
6273
6274 switch (fw_event->event) {
6275 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
6276 _scsih_sas_topology_change_event(ioc, fw_event);
6277 break;
6278 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
6279 _scsih_sas_device_status_change_event(ioc,
6280 fw_event);
6281 break;
6282 case MPI2_EVENT_SAS_DISCOVERY:
6283 _scsih_sas_discovery_event(ioc,
6284 fw_event);
6285 break;
6286 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
6287 _scsih_sas_broadcast_primative_event(ioc,
6288 fw_event);
6289 break;
6290 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
6291 _scsih_sas_enclosure_dev_status_change_event(ioc,
6292 fw_event);
6293 break;
6294 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
6295 _scsih_sas_ir_config_change_event(ioc, fw_event);
6296 break;
6297 case MPI2_EVENT_IR_VOLUME:
6298 _scsih_sas_ir_volume_event(ioc, fw_event);
6299 break;
6300 case MPI2_EVENT_IR_PHYSICAL_DISK:
6301 _scsih_sas_ir_physical_disk_event(ioc, fw_event);
6302 break;
6303 case MPI2_EVENT_IR_OPERATION_STATUS:
6304 _scsih_sas_ir_operation_status_event(ioc, fw_event);
6305 break;
6306 }
6307 _scsih_fw_event_free(ioc, fw_event);
6308 }
6309
6310 /**
6311 * mpt2sas_scsih_event_callback - firmware event handler (called at ISR time)
6312 * @ioc: per adapter object
6313 * @msix_index: MSIX table index supplied by the OS
6314 * @reply: reply message frame(lower 32bit addr)
6315 * Context: interrupt.
6316 *
6317 * This function merely adds a new work task into ioc->firmware_event_thread.
6318 * The tasks are worked from _firmware_event_work in user context.
6319 *
6320 * Return 1 meaning mf should be freed from _base_interrupt
6321 * 0 means the mf is freed from this function.
6322 */
6323 u8
6324 mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index,
6325 u32 reply)
6326 {
6327 struct fw_event_work *fw_event;
6328 Mpi2EventNotificationReply_t *mpi_reply;
6329 u16 event;
6330 u16 sz;
6331
6332 /* events turned off due to host reset or driver unloading */
6333 if (ioc->remove_host || ioc->pci_error_recovery)
6334 return 1;
6335
6336 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
6337 event = le16_to_cpu(mpi_reply->Event);
6338
6339 switch (event) {
6340 /* handle these */
6341 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
6342 {
6343 Mpi2EventDataSasBroadcastPrimitive_t *baen_data =
6344 (Mpi2EventDataSasBroadcastPrimitive_t *)
6345 mpi_reply->EventData;
6346
6347 if (baen_data->Primitive !=
6348 MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT ||
6349 ioc->broadcast_aen_busy)
6350 return 1;
6351 ioc->broadcast_aen_busy = 1;
6352 break;
6353 }
6354
6355 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
6356 _scsih_check_topo_delete_events(ioc,
6357 (Mpi2EventDataSasTopologyChangeList_t *)
6358 mpi_reply->EventData);
6359 break;
6360 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
6361 _scsih_check_ir_config_unhide_events(ioc,
6362 (Mpi2EventDataIrConfigChangeList_t *)
6363 mpi_reply->EventData);
6364 break;
6365 case MPI2_EVENT_IR_VOLUME:
6366 _scsih_check_volume_delete_events(ioc,
6367 (Mpi2EventDataIrVolume_t *)
6368 mpi_reply->EventData);
6369 break;
6370 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
6371 case MPI2_EVENT_IR_OPERATION_STATUS:
6372 case MPI2_EVENT_SAS_DISCOVERY:
6373 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
6374 case MPI2_EVENT_IR_PHYSICAL_DISK:
6375 break;
6376
6377 default: /* ignore the rest */
6378 return 1;
6379 }
6380
6381 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
6382 if (!fw_event) {
6383 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6384 ioc->name, __FILE__, __LINE__, __func__);
6385 return 1;
6386 }
6387 sz = le16_to_cpu(mpi_reply->EventDataLength) * 4;
6388 fw_event->event_data = kzalloc(sz, GFP_ATOMIC);
6389 if (!fw_event->event_data) {
6390 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6391 ioc->name, __FILE__, __LINE__, __func__);
6392 kfree(fw_event);
6393 return 1;
6394 }
6395
6396 memcpy(fw_event->event_data, mpi_reply->EventData,
6397 sz);
6398 fw_event->ioc = ioc;
6399 fw_event->VF_ID = mpi_reply->VF_ID;
6400 fw_event->VP_ID = mpi_reply->VP_ID;
6401 fw_event->event = event;
6402 _scsih_fw_event_add(ioc, fw_event);
6403 return 1;
6404 }
6405
6406 /* shost template */
6407 static struct scsi_host_template scsih_driver_template = {
6408 .module = THIS_MODULE,
6409 .name = "Fusion MPT SAS Host",
6410 .proc_name = MPT2SAS_DRIVER_NAME,
6411 .queuecommand = _scsih_qcmd,
6412 .target_alloc = _scsih_target_alloc,
6413 .slave_alloc = _scsih_slave_alloc,
6414 .slave_configure = _scsih_slave_configure,
6415 .target_destroy = _scsih_target_destroy,
6416 .slave_destroy = _scsih_slave_destroy,
6417 .change_queue_depth = _scsih_change_queue_depth,
6418 .change_queue_type = _scsih_change_queue_type,
6419 .eh_abort_handler = _scsih_abort,
6420 .eh_device_reset_handler = _scsih_dev_reset,
6421 .eh_target_reset_handler = _scsih_target_reset,
6422 .eh_host_reset_handler = _scsih_host_reset,
6423 .bios_param = _scsih_bios_param,
6424 .can_queue = 1,
6425 .this_id = -1,
6426 .sg_tablesize = MPT2SAS_SG_DEPTH,
6427 .max_sectors = 8192,
6428 .cmd_per_lun = 7,
6429 .use_clustering = ENABLE_CLUSTERING,
6430 .shost_attrs = mpt2sas_host_attrs,
6431 .sdev_attrs = mpt2sas_dev_attrs,
6432 };
6433
6434 /**
6435 * _scsih_expander_node_remove - removing expander device from list.
6436 * @ioc: per adapter object
6437 * @sas_expander: the sas_device object
6438 * Context: Calling function should acquire ioc->sas_node_lock.
6439 *
6440 * Removing object and freeing associated memory from the
6441 * ioc->sas_expander_list.
6442 *
6443 * Return nothing.
6444 */
6445 static void
6446 _scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
6447 struct _sas_node *sas_expander)
6448 {
6449 struct _sas_port *mpt2sas_port, *next;
6450
6451 /* remove sibling ports attached to this expander */
6452 list_for_each_entry_safe(mpt2sas_port, next,
6453 &sas_expander->sas_port_list, port_list) {
6454 if (ioc->shost_recovery)
6455 return;
6456 if (mpt2sas_port->remote_identify.device_type ==
6457 SAS_END_DEVICE)
6458 mpt2sas_device_remove(ioc,
6459 mpt2sas_port->remote_identify.sas_address);
6460 else if (mpt2sas_port->remote_identify.device_type ==
6461 SAS_EDGE_EXPANDER_DEVICE ||
6462 mpt2sas_port->remote_identify.device_type ==
6463 SAS_FANOUT_EXPANDER_DEVICE)
6464 mpt2sas_expander_remove(ioc,
6465 mpt2sas_port->remote_identify.sas_address);
6466 }
6467
6468 mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
6469 sas_expander->sas_address_parent);
6470
6471 printk(MPT2SAS_INFO_FMT "expander_remove: handle"
6472 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name,
6473 sas_expander->handle, (unsigned long long)
6474 sas_expander->sas_address);
6475
6476 kfree(sas_expander->phy);
6477 kfree(sas_expander);
6478 }
6479
6480 /**
6481 * _scsih_ir_shutdown - IR shutdown notification
6482 * @ioc: per adapter object
6483 *
6484 * Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
6485 * the host system is shutting down.
6486 *
6487 * Return nothing.
6488 */
6489 static void
6490 _scsih_ir_shutdown(struct MPT2SAS_ADAPTER *ioc)
6491 {
6492 Mpi2RaidActionRequest_t *mpi_request;
6493 Mpi2RaidActionReply_t *mpi_reply;
6494 u16 smid;
6495
6496 /* is IR firmware build loaded ? */
6497 if (!ioc->ir_firmware)
6498 return;
6499
6500 /* are there any volumes ? */
6501 if (list_empty(&ioc->raid_device_list))
6502 return;
6503
6504 mutex_lock(&ioc->scsih_cmds.mutex);
6505
6506 if (ioc->scsih_cmds.status != MPT2_CMD_NOT_USED) {
6507 printk(MPT2SAS_ERR_FMT "%s: scsih_cmd in use\n",
6508 ioc->name, __func__);
6509 goto out;
6510 }
6511 ioc->scsih_cmds.status = MPT2_CMD_PENDING;
6512
6513 smid = mpt2sas_base_get_smid(ioc, ioc->scsih_cb_idx);
6514 if (!smid) {
6515 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
6516 ioc->name, __func__);
6517 ioc->scsih_cmds.status = MPT2_CMD_NOT_USED;
6518 goto out;
6519 }
6520
6521 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
6522 ioc->scsih_cmds.smid = smid;
6523 memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t));
6524
6525 mpi_request->Function = MPI2_FUNCTION_RAID_ACTION;
6526 mpi_request->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;
6527
6528 printk(MPT2SAS_INFO_FMT "IR shutdown (sending)\n", ioc->name);
6529 init_completion(&ioc->scsih_cmds.done);
6530 mpt2sas_base_put_smid_default(ioc, smid);
6531 wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
6532
6533 if (!(ioc->scsih_cmds.status & MPT2_CMD_COMPLETE)) {
6534 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
6535 ioc->name, __func__);
6536 goto out;
6537 }
6538
6539 if (ioc->scsih_cmds.status & MPT2_CMD_REPLY_VALID) {
6540 mpi_reply = ioc->scsih_cmds.reply;
6541
6542 printk(MPT2SAS_INFO_FMT "IR shutdown (complete): "
6543 "ioc_status(0x%04x), loginfo(0x%08x)\n",
6544 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
6545 le32_to_cpu(mpi_reply->IOCLogInfo));
6546 }
6547
6548 out:
6549 ioc->scsih_cmds.status = MPT2_CMD_NOT_USED;
6550 mutex_unlock(&ioc->scsih_cmds.mutex);
6551 }
6552
6553 /**
6554 * _scsih_shutdown - routine call during system shutdown
6555 * @pdev: PCI device struct
6556 *
6557 * Return nothing.
6558 */
6559 static void
6560 _scsih_shutdown(struct pci_dev *pdev)
6561 {
6562 struct Scsi_Host *shost = pci_get_drvdata(pdev);
6563 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
6564 struct workqueue_struct *wq;
6565 unsigned long flags;
6566
6567 ioc->remove_host = 1;
6568 _scsih_fw_event_cleanup_queue(ioc);
6569
6570 spin_lock_irqsave(&ioc->fw_event_lock, flags);
6571 wq = ioc->firmware_event_thread;
6572 ioc->firmware_event_thread = NULL;
6573 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
6574 if (wq)
6575 destroy_workqueue(wq);
6576
6577 _scsih_ir_shutdown(ioc);
6578 mpt2sas_base_detach(ioc);
6579 }
6580
6581 /**
6582 * _scsih_remove - detach and remove add host
6583 * @pdev: PCI device struct
6584 *
6585 * Routine called when unloading the driver.
6586 * Return nothing.
6587 */
6588 static void __devexit
6589 _scsih_remove(struct pci_dev *pdev)
6590 {
6591 struct Scsi_Host *shost = pci_get_drvdata(pdev);
6592 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
6593 struct _sas_port *mpt2sas_port, *next_port;
6594 struct _raid_device *raid_device, *next;
6595 struct MPT2SAS_TARGET *sas_target_priv_data;
6596 struct workqueue_struct *wq;
6597 unsigned long flags;
6598
6599 ioc->remove_host = 1;
6600 _scsih_fw_event_cleanup_queue(ioc);
6601
6602 spin_lock_irqsave(&ioc->fw_event_lock, flags);
6603 wq = ioc->firmware_event_thread;
6604 ioc->firmware_event_thread = NULL;
6605 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
6606 if (wq)
6607 destroy_workqueue(wq);
6608
6609 /* release all the volumes */
6610 list_for_each_entry_safe(raid_device, next, &ioc->raid_device_list,
6611 list) {
6612 if (raid_device->starget) {
6613 sas_target_priv_data =
6614 raid_device->starget->hostdata;
6615 sas_target_priv_data->deleted = 1;
6616 scsi_remove_target(&raid_device->starget->dev);
6617 }
6618 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), wwid"
6619 "(0x%016llx)\n", ioc->name, raid_device->handle,
6620 (unsigned long long) raid_device->wwid);
6621 _scsih_raid_device_remove(ioc, raid_device);
6622 }
6623
6624 /* free ports attached to the sas_host */
6625 list_for_each_entry_safe(mpt2sas_port, next_port,
6626 &ioc->sas_hba.sas_port_list, port_list) {
6627 if (mpt2sas_port->remote_identify.device_type ==
6628 SAS_END_DEVICE)
6629 mpt2sas_device_remove(ioc,
6630 mpt2sas_port->remote_identify.sas_address);
6631 else if (mpt2sas_port->remote_identify.device_type ==
6632 SAS_EDGE_EXPANDER_DEVICE ||
6633 mpt2sas_port->remote_identify.device_type ==
6634 SAS_FANOUT_EXPANDER_DEVICE)
6635 mpt2sas_expander_remove(ioc,
6636 mpt2sas_port->remote_identify.sas_address);
6637 }
6638
6639 /* free phys attached to the sas_host */
6640 if (ioc->sas_hba.num_phys) {
6641 kfree(ioc->sas_hba.phy);
6642 ioc->sas_hba.phy = NULL;
6643 ioc->sas_hba.num_phys = 0;
6644 }
6645
6646 sas_remove_host(shost);
6647 _scsih_shutdown(pdev);
6648 list_del(&ioc->list);
6649 scsi_remove_host(shost);
6650 scsi_host_put(shost);
6651 }
6652
6653 /**
6654 * _scsih_probe_boot_devices - reports 1st device
6655 * @ioc: per adapter object
6656 *
6657 * If specified in bios page 2, this routine reports the 1st
6658 * device scsi-ml or sas transport for persistent boot device
6659 * purposes. Please refer to function _scsih_determine_boot_device()
6660 */
6661 static void
6662 _scsih_probe_boot_devices(struct MPT2SAS_ADAPTER *ioc)
6663 {
6664 u8 is_raid;
6665 void *device;
6666 struct _sas_device *sas_device;
6667 struct _raid_device *raid_device;
6668 u16 handle;
6669 u64 sas_address_parent;
6670 u64 sas_address;
6671 unsigned long flags;
6672 int rc;
6673
6674 device = NULL;
6675 if (ioc->req_boot_device.device) {
6676 device = ioc->req_boot_device.device;
6677 is_raid = ioc->req_boot_device.is_raid;
6678 } else if (ioc->req_alt_boot_device.device) {
6679 device = ioc->req_alt_boot_device.device;
6680 is_raid = ioc->req_alt_boot_device.is_raid;
6681 } else if (ioc->current_boot_device.device) {
6682 device = ioc->current_boot_device.device;
6683 is_raid = ioc->current_boot_device.is_raid;
6684 }
6685
6686 if (!device)
6687 return;
6688
6689 if (is_raid) {
6690 raid_device = device;
6691 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
6692 raid_device->id, 0);
6693 if (rc)
6694 _scsih_raid_device_remove(ioc, raid_device);
6695 } else {
6696 sas_device = device;
6697 handle = sas_device->handle;
6698 sas_address_parent = sas_device->sas_address_parent;
6699 sas_address = sas_device->sas_address;
6700 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6701 list_move_tail(&sas_device->list, &ioc->sas_device_list);
6702 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6703 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
6704 sas_device->sas_address_parent)) {
6705 _scsih_sas_device_remove(ioc, sas_device);
6706 } else if (!sas_device->starget) {
6707 mpt2sas_transport_port_remove(ioc, sas_address,
6708 sas_address_parent);
6709 _scsih_sas_device_remove(ioc, sas_device);
6710 }
6711 }
6712 }
6713
6714 /**
6715 * _scsih_probe_raid - reporting raid volumes to scsi-ml
6716 * @ioc: per adapter object
6717 *
6718 * Called during initial loading of the driver.
6719 */
6720 static void
6721 _scsih_probe_raid(struct MPT2SAS_ADAPTER *ioc)
6722 {
6723 struct _raid_device *raid_device, *raid_next;
6724 int rc;
6725
6726 list_for_each_entry_safe(raid_device, raid_next,
6727 &ioc->raid_device_list, list) {
6728 if (raid_device->starget)
6729 continue;
6730 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
6731 raid_device->id, 0);
6732 if (rc)
6733 _scsih_raid_device_remove(ioc, raid_device);
6734 }
6735 }
6736
6737 /**
6738 * _scsih_probe_sas - reporting sas devices to sas transport
6739 * @ioc: per adapter object
6740 *
6741 * Called during initial loading of the driver.
6742 */
6743 static void
6744 _scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc)
6745 {
6746 struct _sas_device *sas_device, *next;
6747 unsigned long flags;
6748
6749 /* SAS Device List */
6750 list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list,
6751 list) {
6752 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6753 list_move_tail(&sas_device->list, &ioc->sas_device_list);
6754 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6755
6756 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
6757 sas_device->sas_address_parent)) {
6758 _scsih_sas_device_remove(ioc, sas_device);
6759 } else if (!sas_device->starget) {
6760 mpt2sas_transport_port_remove(ioc,
6761 sas_device->sas_address,
6762 sas_device->sas_address_parent);
6763 _scsih_sas_device_remove(ioc, sas_device);
6764 }
6765 }
6766 }
6767
6768 /**
6769 * _scsih_probe_devices - probing for devices
6770 * @ioc: per adapter object
6771 *
6772 * Called during initial loading of the driver.
6773 */
6774 static void
6775 _scsih_probe_devices(struct MPT2SAS_ADAPTER *ioc)
6776 {
6777 u16 volume_mapping_flags =
6778 le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) &
6779 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
6780
6781 if (!(ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR))
6782 return; /* return when IOC doesn't support initiator mode */
6783
6784 _scsih_probe_boot_devices(ioc);
6785
6786 if (ioc->ir_firmware) {
6787 if ((volume_mapping_flags &
6788 MPI2_IOCPAGE8_IRFLAGS_HIGH_VOLUME_MAPPING)) {
6789 _scsih_probe_sas(ioc);
6790 _scsih_probe_raid(ioc);
6791 } else {
6792 _scsih_probe_raid(ioc);
6793 _scsih_probe_sas(ioc);
6794 }
6795 } else
6796 _scsih_probe_sas(ioc);
6797 }
6798
6799 /**
6800 * _scsih_probe - attach and add scsi host
6801 * @pdev: PCI device struct
6802 * @id: pci device id
6803 *
6804 * Returns 0 success, anything else error.
6805 */
6806 static int
6807 _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
6808 {
6809 struct MPT2SAS_ADAPTER *ioc;
6810 struct Scsi_Host *shost;
6811
6812 shost = scsi_host_alloc(&scsih_driver_template,
6813 sizeof(struct MPT2SAS_ADAPTER));
6814 if (!shost)
6815 return -ENODEV;
6816
6817 /* init local params */
6818 ioc = shost_priv(shost);
6819 memset(ioc, 0, sizeof(struct MPT2SAS_ADAPTER));
6820 INIT_LIST_HEAD(&ioc->list);
6821 list_add_tail(&ioc->list, &mpt2sas_ioc_list);
6822 ioc->shost = shost;
6823 ioc->id = mpt_ids++;
6824 sprintf(ioc->name, "%s%d", MPT2SAS_DRIVER_NAME, ioc->id);
6825 ioc->pdev = pdev;
6826 ioc->scsi_io_cb_idx = scsi_io_cb_idx;
6827 ioc->tm_cb_idx = tm_cb_idx;
6828 ioc->ctl_cb_idx = ctl_cb_idx;
6829 ioc->base_cb_idx = base_cb_idx;
6830 ioc->transport_cb_idx = transport_cb_idx;
6831 ioc->scsih_cb_idx = scsih_cb_idx;
6832 ioc->config_cb_idx = config_cb_idx;
6833 ioc->tm_tr_cb_idx = tm_tr_cb_idx;
6834 ioc->tm_tr_volume_cb_idx = tm_tr_volume_cb_idx;
6835 ioc->tm_sas_control_cb_idx = tm_sas_control_cb_idx;
6836 ioc->logging_level = logging_level;
6837 /* misc semaphores and spin locks */
6838 mutex_init(&ioc->reset_in_progress_mutex);
6839 spin_lock_init(&ioc->ioc_reset_in_progress_lock);
6840 spin_lock_init(&ioc->scsi_lookup_lock);
6841 spin_lock_init(&ioc->sas_device_lock);
6842 spin_lock_init(&ioc->sas_node_lock);
6843 spin_lock_init(&ioc->fw_event_lock);
6844 spin_lock_init(&ioc->raid_device_lock);
6845
6846 INIT_LIST_HEAD(&ioc->sas_device_list);
6847 INIT_LIST_HEAD(&ioc->sas_device_init_list);
6848 INIT_LIST_HEAD(&ioc->sas_expander_list);
6849 INIT_LIST_HEAD(&ioc->fw_event_list);
6850 INIT_LIST_HEAD(&ioc->raid_device_list);
6851 INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list);
6852 INIT_LIST_HEAD(&ioc->delayed_tr_list);
6853 INIT_LIST_HEAD(&ioc->delayed_tr_volume_list);
6854
6855 /* init shost parameters */
6856 shost->max_cmd_len = 32;
6857 shost->max_lun = max_lun;
6858 shost->transportt = mpt2sas_transport_template;
6859 shost->unique_id = ioc->id;
6860
6861 if ((scsi_add_host(shost, &pdev->dev))) {
6862 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6863 ioc->name, __FILE__, __LINE__, __func__);
6864 list_del(&ioc->list);
6865 goto out_add_shost_fail;
6866 }
6867
6868 scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
6869 | SHOST_DIF_TYPE2_PROTECTION | SHOST_DIF_TYPE3_PROTECTION);
6870 scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC);
6871
6872 /* event thread */
6873 snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
6874 "fw_event%d", ioc->id);
6875 ioc->firmware_event_thread = create_singlethread_workqueue(
6876 ioc->firmware_event_name);
6877 if (!ioc->firmware_event_thread) {
6878 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6879 ioc->name, __FILE__, __LINE__, __func__);
6880 goto out_thread_fail;
6881 }
6882
6883 ioc->wait_for_port_enable_to_complete = 1;
6884 if ((mpt2sas_base_attach(ioc))) {
6885 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6886 ioc->name, __FILE__, __LINE__, __func__);
6887 goto out_attach_fail;
6888 }
6889
6890 ioc->wait_for_port_enable_to_complete = 0;
6891 _scsih_probe_devices(ioc);
6892 return 0;
6893
6894 out_attach_fail:
6895 destroy_workqueue(ioc->firmware_event_thread);
6896 out_thread_fail:
6897 list_del(&ioc->list);
6898 scsi_remove_host(shost);
6899 out_add_shost_fail:
6900 return -ENODEV;
6901 }
6902
6903 #ifdef CONFIG_PM
6904 /**
6905 * _scsih_suspend - power management suspend main entry point
6906 * @pdev: PCI device struct
6907 * @state: PM state change to (usually PCI_D3)
6908 *
6909 * Returns 0 success, anything else error.
6910 */
6911 static int
6912 _scsih_suspend(struct pci_dev *pdev, pm_message_t state)
6913 {
6914 struct Scsi_Host *shost = pci_get_drvdata(pdev);
6915 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
6916 u32 device_state;
6917
6918 mpt2sas_base_stop_watchdog(ioc);
6919 flush_scheduled_work();
6920 scsi_block_requests(shost);
6921 device_state = pci_choose_state(pdev, state);
6922 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, entering "
6923 "operating state [D%d]\n", ioc->name, pdev,
6924 pci_name(pdev), device_state);
6925
6926 mpt2sas_base_free_resources(ioc);
6927 pci_save_state(pdev);
6928 pci_disable_device(pdev);
6929 pci_set_power_state(pdev, device_state);
6930 return 0;
6931 }
6932
6933 /**
6934 * _scsih_resume - power management resume main entry point
6935 * @pdev: PCI device struct
6936 *
6937 * Returns 0 success, anything else error.
6938 */
6939 static int
6940 _scsih_resume(struct pci_dev *pdev)
6941 {
6942 struct Scsi_Host *shost = pci_get_drvdata(pdev);
6943 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
6944 u32 device_state = pdev->current_state;
6945 int r;
6946
6947 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, previous "
6948 "operating state [D%d]\n", ioc->name, pdev,
6949 pci_name(pdev), device_state);
6950
6951 pci_set_power_state(pdev, PCI_D0);
6952 pci_enable_wake(pdev, PCI_D0, 0);
6953 pci_restore_state(pdev);
6954 ioc->pdev = pdev;
6955 r = mpt2sas_base_map_resources(ioc);
6956 if (r)
6957 return r;
6958
6959 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, SOFT_RESET);
6960 scsi_unblock_requests(shost);
6961 mpt2sas_base_start_watchdog(ioc);
6962 return 0;
6963 }
6964 #endif /* CONFIG_PM */
6965
6966 /**
6967 * _scsih_pci_error_detected - Called when a PCI error is detected.
6968 * @pdev: PCI device struct
6969 * @state: PCI channel state
6970 *
6971 * Description: Called when a PCI error is detected.
6972 *
6973 * Return value:
6974 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
6975 */
6976 static pci_ers_result_t
6977 _scsih_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
6978 {
6979 struct Scsi_Host *shost = pci_get_drvdata(pdev);
6980 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
6981
6982 printk(MPT2SAS_INFO_FMT "PCI error: detected callback, state(%d)!!\n",
6983 ioc->name, state);
6984
6985 switch (state) {
6986 case pci_channel_io_normal:
6987 return PCI_ERS_RESULT_CAN_RECOVER;
6988 case pci_channel_io_frozen:
6989 /* Fatal error, prepare for slot reset */
6990 ioc->pci_error_recovery = 1;
6991 scsi_block_requests(ioc->shost);
6992 mpt2sas_base_stop_watchdog(ioc);
6993 mpt2sas_base_free_resources(ioc);
6994 return PCI_ERS_RESULT_NEED_RESET;
6995 case pci_channel_io_perm_failure:
6996 /* Permanent error, prepare for device removal */
6997 ioc->pci_error_recovery = 1;
6998 mpt2sas_base_stop_watchdog(ioc);
6999 _scsih_flush_running_cmds(ioc);
7000 return PCI_ERS_RESULT_DISCONNECT;
7001 }
7002 return PCI_ERS_RESULT_NEED_RESET;
7003 }
7004
7005 /**
7006 * _scsih_pci_slot_reset - Called when PCI slot has been reset.
7007 * @pdev: PCI device struct
7008 *
7009 * Description: This routine is called by the pci error recovery
7010 * code after the PCI slot has been reset, just before we
7011 * should resume normal operations.
7012 */
7013 static pci_ers_result_t
7014 _scsih_pci_slot_reset(struct pci_dev *pdev)
7015 {
7016 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7017 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7018 int rc;
7019
7020 printk(MPT2SAS_INFO_FMT "PCI error: slot reset callback!!\n",
7021 ioc->name);
7022
7023 ioc->pci_error_recovery = 0;
7024 ioc->pdev = pdev;
7025 pci_restore_state(pdev);
7026 rc = mpt2sas_base_map_resources(ioc);
7027 if (rc)
7028 return PCI_ERS_RESULT_DISCONNECT;
7029
7030
7031 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
7032 FORCE_BIG_HAMMER);
7033
7034 printk(MPT2SAS_WARN_FMT "hard reset: %s\n", ioc->name,
7035 (rc == 0) ? "success" : "failed");
7036
7037 if (!rc)
7038 return PCI_ERS_RESULT_RECOVERED;
7039 else
7040 return PCI_ERS_RESULT_DISCONNECT;
7041 }
7042
7043 /**
7044 * _scsih_pci_resume() - resume normal ops after PCI reset
7045 * @pdev: pointer to PCI device
7046 *
7047 * Called when the error recovery driver tells us that its
7048 * OK to resume normal operation. Use completion to allow
7049 * halted scsi ops to resume.
7050 */
7051 static void
7052 _scsih_pci_resume(struct pci_dev *pdev)
7053 {
7054 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7055 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7056
7057 printk(MPT2SAS_INFO_FMT "PCI error: resume callback!!\n", ioc->name);
7058
7059 pci_cleanup_aer_uncorrect_error_status(pdev);
7060 mpt2sas_base_start_watchdog(ioc);
7061 scsi_unblock_requests(ioc->shost);
7062 }
7063
7064 /**
7065 * _scsih_pci_mmio_enabled - Enable MMIO and dump debug registers
7066 * @pdev: pointer to PCI device
7067 */
7068 static pci_ers_result_t
7069 _scsih_pci_mmio_enabled(struct pci_dev *pdev)
7070 {
7071 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7072 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7073
7074 printk(MPT2SAS_INFO_FMT "PCI error: mmio enabled callback!!\n",
7075 ioc->name);
7076
7077 /* TODO - dump whatever for debugging purposes */
7078
7079 /* Request a slot reset. */
7080 return PCI_ERS_RESULT_NEED_RESET;
7081 }
7082
7083 static struct pci_error_handlers _scsih_err_handler = {
7084 .error_detected = _scsih_pci_error_detected,
7085 .mmio_enabled = _scsih_pci_mmio_enabled,
7086 .slot_reset = _scsih_pci_slot_reset,
7087 .resume = _scsih_pci_resume,
7088 };
7089
7090 static struct pci_driver scsih_driver = {
7091 .name = MPT2SAS_DRIVER_NAME,
7092 .id_table = scsih_pci_table,
7093 .probe = _scsih_probe,
7094 .remove = __devexit_p(_scsih_remove),
7095 .shutdown = _scsih_shutdown,
7096 .err_handler = &_scsih_err_handler,
7097 #ifdef CONFIG_PM
7098 .suspend = _scsih_suspend,
7099 .resume = _scsih_resume,
7100 #endif
7101 };
7102
7103 /* raid transport support */
7104 static struct raid_function_template mpt2sas_raid_functions = {
7105 .cookie = &scsih_driver_template,
7106 .is_raid = _scsih_is_raid,
7107 .get_resync = _scsih_get_resync,
7108 .get_state = _scsih_get_state,
7109 };
7110
7111 /**
7112 * _scsih_init - main entry point for this driver.
7113 *
7114 * Returns 0 success, anything else error.
7115 */
7116 static int __init
7117 _scsih_init(void)
7118 {
7119 int error;
7120
7121 mpt_ids = 0;
7122 printk(KERN_INFO "%s version %s loaded\n", MPT2SAS_DRIVER_NAME,
7123 MPT2SAS_DRIVER_VERSION);
7124
7125 mpt2sas_transport_template =
7126 sas_attach_transport(&mpt2sas_transport_functions);
7127 if (!mpt2sas_transport_template)
7128 return -ENODEV;
7129 /* raid transport support */
7130 mpt2sas_raid_template = raid_class_attach(&mpt2sas_raid_functions);
7131 if (!mpt2sas_raid_template) {
7132 sas_release_transport(mpt2sas_transport_template);
7133 return -ENODEV;
7134 }
7135
7136 mpt2sas_base_initialize_callback_handler();
7137
7138 /* queuecommand callback hander */
7139 scsi_io_cb_idx = mpt2sas_base_register_callback_handler(_scsih_io_done);
7140
7141 /* task management callback handler */
7142 tm_cb_idx = mpt2sas_base_register_callback_handler(_scsih_tm_done);
7143
7144 /* base internal commands callback handler */
7145 base_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_base_done);
7146
7147 /* transport internal commands callback handler */
7148 transport_cb_idx = mpt2sas_base_register_callback_handler(
7149 mpt2sas_transport_done);
7150
7151 /* scsih internal commands callback handler */
7152 scsih_cb_idx = mpt2sas_base_register_callback_handler(_scsih_done);
7153
7154 /* configuration page API internal commands callback handler */
7155 config_cb_idx = mpt2sas_base_register_callback_handler(
7156 mpt2sas_config_done);
7157
7158 /* ctl module callback handler */
7159 ctl_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_ctl_done);
7160
7161 tm_tr_cb_idx = mpt2sas_base_register_callback_handler(
7162 _scsih_tm_tr_complete);
7163
7164 tm_tr_volume_cb_idx = mpt2sas_base_register_callback_handler(
7165 _scsih_tm_volume_tr_complete);
7166
7167 tm_sas_control_cb_idx = mpt2sas_base_register_callback_handler(
7168 _scsih_sas_control_complete);
7169
7170 mpt2sas_ctl_init();
7171
7172 error = pci_register_driver(&scsih_driver);
7173 if (error) {
7174 /* raid transport support */
7175 raid_class_release(mpt2sas_raid_template);
7176 sas_release_transport(mpt2sas_transport_template);
7177 }
7178
7179 return error;
7180 }
7181
7182 /**
7183 * _scsih_exit - exit point for this driver (when it is a module).
7184 *
7185 * Returns 0 success, anything else error.
7186 */
7187 static void __exit
7188 _scsih_exit(void)
7189 {
7190 printk(KERN_INFO "mpt2sas version %s unloading\n",
7191 MPT2SAS_DRIVER_VERSION);
7192
7193 pci_unregister_driver(&scsih_driver);
7194
7195 mpt2sas_ctl_exit();
7196
7197 mpt2sas_base_release_callback_handler(scsi_io_cb_idx);
7198 mpt2sas_base_release_callback_handler(tm_cb_idx);
7199 mpt2sas_base_release_callback_handler(base_cb_idx);
7200 mpt2sas_base_release_callback_handler(transport_cb_idx);
7201 mpt2sas_base_release_callback_handler(scsih_cb_idx);
7202 mpt2sas_base_release_callback_handler(config_cb_idx);
7203 mpt2sas_base_release_callback_handler(ctl_cb_idx);
7204
7205 mpt2sas_base_release_callback_handler(tm_tr_cb_idx);
7206 mpt2sas_base_release_callback_handler(tm_tr_volume_cb_idx);
7207 mpt2sas_base_release_callback_handler(tm_sas_control_cb_idx);
7208
7209 /* raid transport support */
7210 raid_class_release(mpt2sas_raid_template);
7211 sas_release_transport(mpt2sas_transport_template);
7212
7213 }
7214
7215 module_init(_scsih_init);
7216 module_exit(_scsih_exit);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree