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[SCSI] mpt2sas: removed use of tm_cmds.mutex in IOCTL branch.
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / scsi / mpt2sas / mpt2sas_scsih.c
blobcfaefd10515d225356024e5899405a2a6558e6e6
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) 2007-2009 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/raid_class.h>
56 #include <linux/slab.h>
57
58 #include "mpt2sas_base.h"
59
60 MODULE_AUTHOR(MPT2SAS_AUTHOR);
61 MODULE_DESCRIPTION(MPT2SAS_DESCRIPTION);
62 MODULE_LICENSE("GPL");
63 MODULE_VERSION(MPT2SAS_DRIVER_VERSION);
64
65 #define RAID_CHANNEL 1
66
67 /* forward proto's */
68 static void _scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
69 struct _sas_node *sas_expander);
70 static void _firmware_event_work(struct work_struct *work);
71
72 /* global parameters */
73 LIST_HEAD(mpt2sas_ioc_list);
74
75 /* local parameters */
76 static u8 scsi_io_cb_idx = -1;
77 static u8 tm_cb_idx = -1;
78 static u8 ctl_cb_idx = -1;
79 static u8 base_cb_idx = -1;
80 static u8 transport_cb_idx = -1;
81 static u8 scsih_cb_idx = -1;
82 static u8 config_cb_idx = -1;
83 static int mpt_ids;
84
85 static u8 tm_tr_cb_idx = -1 ;
86 static u8 tm_sas_control_cb_idx = -1;
87
88 /* command line options */
89 static u32 logging_level;
90 MODULE_PARM_DESC(logging_level, " bits for enabling additional logging info "
91 "(default=0)");
92
93 /* scsi-mid layer global parmeter is max_report_luns, which is 511 */
94 #define MPT2SAS_MAX_LUN (16895)
95 static int max_lun = MPT2SAS_MAX_LUN;
96 module_param(max_lun, int, 0);
97 MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
98
99 /**
100 * struct sense_info - common structure for obtaining sense keys
101 * @skey: sense key
102 * @asc: additional sense code
103 * @ascq: additional sense code qualifier
104 */
105 struct sense_info {
106 u8 skey;
107 u8 asc;
108 u8 ascq;
109 };
110
111
112 #define MPT2SAS_RESCAN_AFTER_HOST_RESET (0xFFFF)
113
114 /**
115 * struct fw_event_work - firmware event struct
116 * @list: link list framework
117 * @work: work object (ioc->fault_reset_work_q)
118 * @cancel_pending_work: flag set during reset handling
119 * @ioc: per adapter object
120 * @VF_ID: virtual function id
121 * @VP_ID: virtual port id
122 * @ignore: flag meaning this event has been marked to ignore
123 * @event: firmware event MPI2_EVENT_XXX defined in mpt2_ioc.h
124 * @event_data: reply event data payload follows
125 *
126 * This object stored on ioc->fw_event_list.
127 */
128 struct fw_event_work {
129 struct list_head list;
130 u8 cancel_pending_work;
131 struct delayed_work delayed_work;
132 struct MPT2SAS_ADAPTER *ioc;
133 u8 VF_ID;
134 u8 VP_ID;
135 u8 ignore;
136 u16 event;
137 void *event_data;
138 };
139
140 /* raid transport support */
141 static struct raid_template *mpt2sas_raid_template;
142
143 /**
144 * struct _scsi_io_transfer - scsi io transfer
145 * @handle: sas device handle (assigned by firmware)
146 * @is_raid: flag set for hidden raid components
147 * @dir: DMA_TO_DEVICE, DMA_FROM_DEVICE,
148 * @data_length: data transfer length
149 * @data_dma: dma pointer to data
150 * @sense: sense data
151 * @lun: lun number
152 * @cdb_length: cdb length
153 * @cdb: cdb contents
154 * @timeout: timeout for this command
155 * @VF_ID: virtual function id
156 * @VP_ID: virtual port id
157 * @valid_reply: flag set for reply message
158 * @sense_length: sense length
159 * @ioc_status: ioc status
160 * @scsi_state: scsi state
161 * @scsi_status: scsi staus
162 * @log_info: log information
163 * @transfer_length: data length transfer when there is a reply message
164 *
165 * Used for sending internal scsi commands to devices within this module.
166 * Refer to _scsi_send_scsi_io().
167 */
168 struct _scsi_io_transfer {
169 u16 handle;
170 u8 is_raid;
171 enum dma_data_direction dir;
172 u32 data_length;
173 dma_addr_t data_dma;
174 u8 sense[SCSI_SENSE_BUFFERSIZE];
175 u32 lun;
176 u8 cdb_length;
177 u8 cdb[32];
178 u8 timeout;
179 u8 VF_ID;
180 u8 VP_ID;
181 u8 valid_reply;
182 /* the following bits are only valid when 'valid_reply = 1' */
183 u32 sense_length;
184 u16 ioc_status;
185 u8 scsi_state;
186 u8 scsi_status;
187 u32 log_info;
188 u32 transfer_length;
189 };
190
191 /*
192 * The pci device ids are defined in mpi/mpi2_cnfg.h.
193 */
194 static struct pci_device_id scsih_pci_table[] = {
195 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004,
196 PCI_ANY_ID, PCI_ANY_ID },
197 /* Falcon ~ 2008*/
198 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2008,
199 PCI_ANY_ID, PCI_ANY_ID },
200 /* Liberator ~ 2108 */
201 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_1,
202 PCI_ANY_ID, PCI_ANY_ID },
203 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_2,
204 PCI_ANY_ID, PCI_ANY_ID },
205 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_3,
206 PCI_ANY_ID, PCI_ANY_ID },
207 /* Meteor ~ 2116 */
208 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_1,
209 PCI_ANY_ID, PCI_ANY_ID },
210 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2,
211 PCI_ANY_ID, PCI_ANY_ID },
212 /* Thunderbolt ~ 2208 */
213 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_1,
214 PCI_ANY_ID, PCI_ANY_ID },
215 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_2,
216 PCI_ANY_ID, PCI_ANY_ID },
217 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_3,
218 PCI_ANY_ID, PCI_ANY_ID },
219 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_4,
220 PCI_ANY_ID, PCI_ANY_ID },
221 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_5,
222 PCI_ANY_ID, PCI_ANY_ID },
223 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_6,
224 PCI_ANY_ID, PCI_ANY_ID },
225 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_7,
226 PCI_ANY_ID, PCI_ANY_ID },
227 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_8,
228 PCI_ANY_ID, PCI_ANY_ID },
229 {0} /* Terminating entry */
230 };
231 MODULE_DEVICE_TABLE(pci, scsih_pci_table);
232
233 /**
234 * _scsih_set_debug_level - global setting of ioc->logging_level.
235 *
236 * Note: The logging levels are defined in mpt2sas_debug.h.
237 */
238 static int
239 _scsih_set_debug_level(const char *val, struct kernel_param *kp)
240 {
241 int ret = param_set_int(val, kp);
242 struct MPT2SAS_ADAPTER *ioc;
243
244 if (ret)
245 return ret;
246
247 printk(KERN_INFO "setting logging_level(0x%08x)\n", logging_level);
248 list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
249 ioc->logging_level = logging_level;
250 return 0;
251 }
252 module_param_call(logging_level, _scsih_set_debug_level, param_get_int,
253 &logging_level, 0644);
254
255 /**
256 * _scsih_srch_boot_sas_address - search based on sas_address
257 * @sas_address: sas address
258 * @boot_device: boot device object from bios page 2
259 *
260 * Returns 1 when there's a match, 0 means no match.
261 */
262 static inline int
263 _scsih_srch_boot_sas_address(u64 sas_address,
264 Mpi2BootDeviceSasWwid_t *boot_device)
265 {
266 return (sas_address == le64_to_cpu(boot_device->SASAddress)) ? 1 : 0;
267 }
268
269 /**
270 * _scsih_srch_boot_device_name - search based on device name
271 * @device_name: device name specified in INDENTIFY fram
272 * @boot_device: boot device object from bios page 2
273 *
274 * Returns 1 when there's a match, 0 means no match.
275 */
276 static inline int
277 _scsih_srch_boot_device_name(u64 device_name,
278 Mpi2BootDeviceDeviceName_t *boot_device)
279 {
280 return (device_name == le64_to_cpu(boot_device->DeviceName)) ? 1 : 0;
281 }
282
283 /**
284 * _scsih_srch_boot_encl_slot - search based on enclosure_logical_id/slot
285 * @enclosure_logical_id: enclosure logical id
286 * @slot_number: slot number
287 * @boot_device: boot device object from bios page 2
288 *
289 * Returns 1 when there's a match, 0 means no match.
290 */
291 static inline int
292 _scsih_srch_boot_encl_slot(u64 enclosure_logical_id, u16 slot_number,
293 Mpi2BootDeviceEnclosureSlot_t *boot_device)
294 {
295 return (enclosure_logical_id == le64_to_cpu(boot_device->
296 EnclosureLogicalID) && slot_number == le16_to_cpu(boot_device->
297 SlotNumber)) ? 1 : 0;
298 }
299
300 /**
301 * _scsih_is_boot_device - search for matching boot device.
302 * @sas_address: sas address
303 * @device_name: device name specified in INDENTIFY fram
304 * @enclosure_logical_id: enclosure logical id
305 * @slot_number: slot number
306 * @form: specifies boot device form
307 * @boot_device: boot device object from bios page 2
308 *
309 * Returns 1 when there's a match, 0 means no match.
310 */
311 static int
312 _scsih_is_boot_device(u64 sas_address, u64 device_name,
313 u64 enclosure_logical_id, u16 slot, u8 form,
314 Mpi2BiosPage2BootDevice_t *boot_device)
315 {
316 int rc = 0;
317
318 switch (form) {
319 case MPI2_BIOSPAGE2_FORM_SAS_WWID:
320 if (!sas_address)
321 break;
322 rc = _scsih_srch_boot_sas_address(
323 sas_address, &boot_device->SasWwid);
324 break;
325 case MPI2_BIOSPAGE2_FORM_ENCLOSURE_SLOT:
326 if (!enclosure_logical_id)
327 break;
328 rc = _scsih_srch_boot_encl_slot(
329 enclosure_logical_id,
330 slot, &boot_device->EnclosureSlot);
331 break;
332 case MPI2_BIOSPAGE2_FORM_DEVICE_NAME:
333 if (!device_name)
334 break;
335 rc = _scsih_srch_boot_device_name(
336 device_name, &boot_device->DeviceName);
337 break;
338 case MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED:
339 break;
340 }
341
342 return rc;
343 }
344
345 /**
346 * _scsih_get_sas_address - set the sas_address for given device handle
347 * @handle: device handle
348 * @sas_address: sas address
349 *
350 * Returns 0 success, non-zero when failure
351 */
352 static int
353 _scsih_get_sas_address(struct MPT2SAS_ADAPTER *ioc, u16 handle,
354 u64 *sas_address)
355 {
356 Mpi2SasDevicePage0_t sas_device_pg0;
357 Mpi2ConfigReply_t mpi_reply;
358 u32 ioc_status;
359
360 if (handle <= ioc->sas_hba.num_phys) {
361 *sas_address = ioc->sas_hba.sas_address;
362 return 0;
363 } else
364 *sas_address = 0;
365
366 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
367 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
368 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
369 ioc->name, __FILE__, __LINE__, __func__);
370 return -ENXIO;
371 }
372
373 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
374 MPI2_IOCSTATUS_MASK;
375 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
376 printk(MPT2SAS_ERR_FMT "handle(0x%04x), ioc_status(0x%04x)"
377 "\nfailure at %s:%d/%s()!\n", ioc->name, handle, ioc_status,
378 __FILE__, __LINE__, __func__);
379 return -EIO;
380 }
381
382 *sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
383 return 0;
384 }
385
386 /**
387 * _scsih_determine_boot_device - determine boot device.
388 * @ioc: per adapter object
389 * @device: either sas_device or raid_device object
390 * @is_raid: [flag] 1 = raid object, 0 = sas object
391 *
392 * Determines whether this device should be first reported device to
393 * to scsi-ml or sas transport, this purpose is for persistant boot device.
394 * There are primary, alternate, and current entries in bios page 2. The order
395 * priority is primary, alternate, then current. This routine saves
396 * the corresponding device object and is_raid flag in the ioc object.
397 * The saved data to be used later in _scsih_probe_boot_devices().
398 */
399 static void
400 _scsih_determine_boot_device(struct MPT2SAS_ADAPTER *ioc,
401 void *device, u8 is_raid)
402 {
403 struct _sas_device *sas_device;
404 struct _raid_device *raid_device;
405 u64 sas_address;
406 u64 device_name;
407 u64 enclosure_logical_id;
408 u16 slot;
409
410 /* only process this function when driver loads */
411 if (!ioc->wait_for_port_enable_to_complete)
412 return;
413
414 if (!is_raid) {
415 sas_device = device;
416 sas_address = sas_device->sas_address;
417 device_name = sas_device->device_name;
418 enclosure_logical_id = sas_device->enclosure_logical_id;
419 slot = sas_device->slot;
420 } else {
421 raid_device = device;
422 sas_address = raid_device->wwid;
423 device_name = 0;
424 enclosure_logical_id = 0;
425 slot = 0;
426 }
427
428 if (!ioc->req_boot_device.device) {
429 if (_scsih_is_boot_device(sas_address, device_name,
430 enclosure_logical_id, slot,
431 (ioc->bios_pg2.ReqBootDeviceForm &
432 MPI2_BIOSPAGE2_FORM_MASK),
433 &ioc->bios_pg2.RequestedBootDevice)) {
434 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
435 "%s: req_boot_device(0x%016llx)\n",
436 ioc->name, __func__,
437 (unsigned long long)sas_address));
438 ioc->req_boot_device.device = device;
439 ioc->req_boot_device.is_raid = is_raid;
440 }
441 }
442
443 if (!ioc->req_alt_boot_device.device) {
444 if (_scsih_is_boot_device(sas_address, device_name,
445 enclosure_logical_id, slot,
446 (ioc->bios_pg2.ReqAltBootDeviceForm &
447 MPI2_BIOSPAGE2_FORM_MASK),
448 &ioc->bios_pg2.RequestedAltBootDevice)) {
449 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
450 "%s: req_alt_boot_device(0x%016llx)\n",
451 ioc->name, __func__,
452 (unsigned long long)sas_address));
453 ioc->req_alt_boot_device.device = device;
454 ioc->req_alt_boot_device.is_raid = is_raid;
455 }
456 }
457
458 if (!ioc->current_boot_device.device) {
459 if (_scsih_is_boot_device(sas_address, device_name,
460 enclosure_logical_id, slot,
461 (ioc->bios_pg2.CurrentBootDeviceForm &
462 MPI2_BIOSPAGE2_FORM_MASK),
463 &ioc->bios_pg2.CurrentBootDevice)) {
464 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
465 "%s: current_boot_device(0x%016llx)\n",
466 ioc->name, __func__,
467 (unsigned long long)sas_address));
468 ioc->current_boot_device.device = device;
469 ioc->current_boot_device.is_raid = is_raid;
470 }
471 }
472 }
473
474 /**
475 * mpt2sas_scsih_sas_device_find_by_sas_address - sas device search
476 * @ioc: per adapter object
477 * @sas_address: sas address
478 * Context: Calling function should acquire ioc->sas_device_lock
479 *
480 * This searches for sas_device based on sas_address, then return sas_device
481 * object.
482 */
483 struct _sas_device *
484 mpt2sas_scsih_sas_device_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
485 u64 sas_address)
486 {
487 struct _sas_device *sas_device;
488
489 list_for_each_entry(sas_device, &ioc->sas_device_list, list)
490 if (sas_device->sas_address == sas_address)
491 return sas_device;
492
493 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
494 if (sas_device->sas_address == sas_address)
495 return sas_device;
496
497 return NULL;
498 }
499
500 /**
501 * _scsih_sas_device_find_by_handle - sas device search
502 * @ioc: per adapter object
503 * @handle: sas device handle (assigned by firmware)
504 * Context: Calling function should acquire ioc->sas_device_lock
505 *
506 * This searches for sas_device based on sas_address, then return sas_device
507 * object.
508 */
509 static struct _sas_device *
510 _scsih_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
511 {
512 struct _sas_device *sas_device;
513
514 list_for_each_entry(sas_device, &ioc->sas_device_list, list)
515 if (sas_device->handle == handle)
516 return sas_device;
517
518 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
519 if (sas_device->handle == handle)
520 return sas_device;
521
522 return NULL;
523 }
524
525 /**
526 * _scsih_sas_device_remove - remove sas_device from list.
527 * @ioc: per adapter object
528 * @sas_device: the sas_device object
529 * Context: This function will acquire ioc->sas_device_lock.
530 *
531 * Removing object and freeing associated memory from the ioc->sas_device_list.
532 */
533 static void
534 _scsih_sas_device_remove(struct MPT2SAS_ADAPTER *ioc,
535 struct _sas_device *sas_device)
536 {
537 unsigned long flags;
538
539 spin_lock_irqsave(&ioc->sas_device_lock, flags);
540 list_del(&sas_device->list);
541 memset(sas_device, 0, sizeof(struct _sas_device));
542 kfree(sas_device);
543 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
544 }
545
546 /**
547 * _scsih_sas_device_add - insert sas_device to the list.
548 * @ioc: per adapter object
549 * @sas_device: the sas_device object
550 * Context: This function will acquire ioc->sas_device_lock.
551 *
552 * Adding new object to the ioc->sas_device_list.
553 */
554 static void
555 _scsih_sas_device_add(struct MPT2SAS_ADAPTER *ioc,
556 struct _sas_device *sas_device)
557 {
558 unsigned long flags;
559
560 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
561 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
562 sas_device->handle, (unsigned long long)sas_device->sas_address));
563
564 spin_lock_irqsave(&ioc->sas_device_lock, flags);
565 list_add_tail(&sas_device->list, &ioc->sas_device_list);
566 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
567
568 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
569 sas_device->sas_address_parent))
570 _scsih_sas_device_remove(ioc, sas_device);
571 }
572
573 /**
574 * _scsih_sas_device_init_add - insert sas_device to the list.
575 * @ioc: per adapter object
576 * @sas_device: the sas_device object
577 * Context: This function will acquire ioc->sas_device_lock.
578 *
579 * Adding new object at driver load time to the ioc->sas_device_init_list.
580 */
581 static void
582 _scsih_sas_device_init_add(struct MPT2SAS_ADAPTER *ioc,
583 struct _sas_device *sas_device)
584 {
585 unsigned long flags;
586
587 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
588 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
589 sas_device->handle, (unsigned long long)sas_device->sas_address));
590
591 spin_lock_irqsave(&ioc->sas_device_lock, flags);
592 list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
593 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
594 _scsih_determine_boot_device(ioc, sas_device, 0);
595 }
596
597 /**
598 * _scsih_raid_device_find_by_id - raid device search
599 * @ioc: per adapter object
600 * @id: sas device target id
601 * @channel: sas device channel
602 * Context: Calling function should acquire ioc->raid_device_lock
603 *
604 * This searches for raid_device based on target id, then return raid_device
605 * object.
606 */
607 static struct _raid_device *
608 _scsih_raid_device_find_by_id(struct MPT2SAS_ADAPTER *ioc, int id, int channel)
609 {
610 struct _raid_device *raid_device, *r;
611
612 r = NULL;
613 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
614 if (raid_device->id == id && raid_device->channel == channel) {
615 r = raid_device;
616 goto out;
617 }
618 }
619
620 out:
621 return r;
622 }
623
624 /**
625 * _scsih_raid_device_find_by_handle - raid device search
626 * @ioc: per adapter object
627 * @handle: sas device handle (assigned by firmware)
628 * Context: Calling function should acquire ioc->raid_device_lock
629 *
630 * This searches for raid_device based on handle, then return raid_device
631 * object.
632 */
633 static struct _raid_device *
634 _scsih_raid_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
635 {
636 struct _raid_device *raid_device, *r;
637
638 r = NULL;
639 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
640 if (raid_device->handle != handle)
641 continue;
642 r = raid_device;
643 goto out;
644 }
645
646 out:
647 return r;
648 }
649
650 /**
651 * _scsih_raid_device_find_by_wwid - raid device search
652 * @ioc: per adapter object
653 * @handle: sas device handle (assigned by firmware)
654 * Context: Calling function should acquire ioc->raid_device_lock
655 *
656 * This searches for raid_device based on wwid, then return raid_device
657 * object.
658 */
659 static struct _raid_device *
660 _scsih_raid_device_find_by_wwid(struct MPT2SAS_ADAPTER *ioc, u64 wwid)
661 {
662 struct _raid_device *raid_device, *r;
663
664 r = NULL;
665 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
666 if (raid_device->wwid != wwid)
667 continue;
668 r = raid_device;
669 goto out;
670 }
671
672 out:
673 return r;
674 }
675
676 /**
677 * _scsih_raid_device_add - add raid_device object
678 * @ioc: per adapter object
679 * @raid_device: raid_device object
680 *
681 * This is added to the raid_device_list link list.
682 */
683 static void
684 _scsih_raid_device_add(struct MPT2SAS_ADAPTER *ioc,
685 struct _raid_device *raid_device)
686 {
687 unsigned long flags;
688
689 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
690 "(0x%04x), wwid(0x%016llx)\n", ioc->name, __func__,
691 raid_device->handle, (unsigned long long)raid_device->wwid));
692
693 spin_lock_irqsave(&ioc->raid_device_lock, flags);
694 list_add_tail(&raid_device->list, &ioc->raid_device_list);
695 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
696 }
697
698 /**
699 * _scsih_raid_device_remove - delete raid_device object
700 * @ioc: per adapter object
701 * @raid_device: raid_device object
702 *
703 * This is removed from the raid_device_list link list.
704 */
705 static void
706 _scsih_raid_device_remove(struct MPT2SAS_ADAPTER *ioc,
707 struct _raid_device *raid_device)
708 {
709 unsigned long flags;
710
711 spin_lock_irqsave(&ioc->raid_device_lock, flags);
712 list_del(&raid_device->list);
713 memset(raid_device, 0, sizeof(struct _raid_device));
714 kfree(raid_device);
715 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
716 }
717
718 /**
719 * mpt2sas_scsih_expander_find_by_handle - expander device search
720 * @ioc: per adapter object
721 * @handle: expander handle (assigned by firmware)
722 * Context: Calling function should acquire ioc->sas_device_lock
723 *
724 * This searches for expander device based on handle, then returns the
725 * sas_node object.
726 */
727 struct _sas_node *
728 mpt2sas_scsih_expander_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
729 {
730 struct _sas_node *sas_expander, *r;
731
732 r = NULL;
733 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
734 if (sas_expander->handle != handle)
735 continue;
736 r = sas_expander;
737 goto out;
738 }
739 out:
740 return r;
741 }
742
743 /**
744 * mpt2sas_scsih_expander_find_by_sas_address - expander device search
745 * @ioc: per adapter object
746 * @sas_address: sas address
747 * Context: Calling function should acquire ioc->sas_node_lock.
748 *
749 * This searches for expander device based on sas_address, then returns the
750 * sas_node object.
751 */
752 struct _sas_node *
753 mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
754 u64 sas_address)
755 {
756 struct _sas_node *sas_expander, *r;
757
758 r = NULL;
759 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
760 if (sas_expander->sas_address != sas_address)
761 continue;
762 r = sas_expander;
763 goto out;
764 }
765 out:
766 return r;
767 }
768
769 /**
770 * _scsih_expander_node_add - insert expander device to the list.
771 * @ioc: per adapter object
772 * @sas_expander: the sas_device object
773 * Context: This function will acquire ioc->sas_node_lock.
774 *
775 * Adding new object to the ioc->sas_expander_list.
776 *
777 * Return nothing.
778 */
779 static void
780 _scsih_expander_node_add(struct MPT2SAS_ADAPTER *ioc,
781 struct _sas_node *sas_expander)
782 {
783 unsigned long flags;
784
785 spin_lock_irqsave(&ioc->sas_node_lock, flags);
786 list_add_tail(&sas_expander->list, &ioc->sas_expander_list);
787 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
788 }
789
790 /**
791 * _scsih_is_end_device - determines if device is an end device
792 * @device_info: bitfield providing information about the device.
793 * Context: none
794 *
795 * Returns 1 if end device.
796 */
797 static int
798 _scsih_is_end_device(u32 device_info)
799 {
800 if (device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE &&
801 ((device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) |
802 (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) |
803 (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))
804 return 1;
805 else
806 return 0;
807 }
808
809 /**
810 * mptscsih_get_scsi_lookup - returns scmd entry
811 * @ioc: per adapter object
812 * @smid: system request message index
813 *
814 * Returns the smid stored scmd pointer.
815 */
816 static struct scsi_cmnd *
817 _scsih_scsi_lookup_get(struct MPT2SAS_ADAPTER *ioc, u16 smid)
818 {
819 return ioc->scsi_lookup[smid - 1].scmd;
820 }
821
822 /**
823 * _scsih_scsi_lookup_find_by_scmd - scmd lookup
824 * @ioc: per adapter object
825 * @smid: system request message index
826 * @scmd: pointer to scsi command object
827 * Context: This function will acquire ioc->scsi_lookup_lock.
828 *
829 * This will search for a scmd pointer in the scsi_lookup array,
830 * returning the revelent smid. A returned value of zero means invalid.
831 */
832 static u16
833 _scsih_scsi_lookup_find_by_scmd(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd
834 *scmd)
835 {
836 u16 smid;
837 unsigned long flags;
838 int i;
839
840 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
841 smid = 0;
842 for (i = 0; i < ioc->scsiio_depth; i++) {
843 if (ioc->scsi_lookup[i].scmd == scmd) {
844 smid = ioc->scsi_lookup[i].smid;
845 goto out;
846 }
847 }
848 out:
849 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
850 return smid;
851 }
852
853 /**
854 * _scsih_scsi_lookup_find_by_target - search for matching channel:id
855 * @ioc: per adapter object
856 * @id: target id
857 * @channel: channel
858 * Context: This function will acquire ioc->scsi_lookup_lock.
859 *
860 * This will search for a matching channel:id in the scsi_lookup array,
861 * returning 1 if found.
862 */
863 static u8
864 _scsih_scsi_lookup_find_by_target(struct MPT2SAS_ADAPTER *ioc, int id,
865 int channel)
866 {
867 u8 found;
868 unsigned long flags;
869 int i;
870
871 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
872 found = 0;
873 for (i = 0 ; i < ioc->scsiio_depth; i++) {
874 if (ioc->scsi_lookup[i].scmd &&
875 (ioc->scsi_lookup[i].scmd->device->id == id &&
876 ioc->scsi_lookup[i].scmd->device->channel == channel)) {
877 found = 1;
878 goto out;
879 }
880 }
881 out:
882 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
883 return found;
884 }
885
886 /**
887 * _scsih_scsi_lookup_find_by_lun - search for matching channel:id:lun
888 * @ioc: per adapter object
889 * @id: target id
890 * @lun: lun number
891 * @channel: channel
892 * Context: This function will acquire ioc->scsi_lookup_lock.
893 *
894 * This will search for a matching channel:id:lun in the scsi_lookup array,
895 * returning 1 if found.
896 */
897 static u8
898 _scsih_scsi_lookup_find_by_lun(struct MPT2SAS_ADAPTER *ioc, int id,
899 unsigned int lun, int channel)
900 {
901 u8 found;
902 unsigned long flags;
903 int i;
904
905 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
906 found = 0;
907 for (i = 0 ; i < ioc->scsiio_depth; i++) {
908 if (ioc->scsi_lookup[i].scmd &&
909 (ioc->scsi_lookup[i].scmd->device->id == id &&
910 ioc->scsi_lookup[i].scmd->device->channel == channel &&
911 ioc->scsi_lookup[i].scmd->device->lun == lun)) {
912 found = 1;
913 goto out;
914 }
915 }
916 out:
917 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
918 return found;
919 }
920
921 /**
922 * _scsih_get_chain_buffer_dma - obtain block of chains (dma address)
923 * @ioc: per adapter object
924 * @smid: system request message index
925 *
926 * Returns phys pointer to chain buffer.
927 */
928 static dma_addr_t
929 _scsih_get_chain_buffer_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid)
930 {
931 return ioc->chain_dma + ((smid - 1) * (ioc->request_sz *
932 ioc->chains_needed_per_io));
933 }
934
935 /**
936 * _scsih_get_chain_buffer - obtain block of chains assigned to a mf request
937 * @ioc: per adapter object
938 * @smid: system request message index
939 *
940 * Returns virt pointer to chain buffer.
941 */
942 static void *
943 _scsih_get_chain_buffer(struct MPT2SAS_ADAPTER *ioc, u16 smid)
944 {
945 return (void *)(ioc->chain + ((smid - 1) * (ioc->request_sz *
946 ioc->chains_needed_per_io)));
947 }
948
949 /**
950 * _scsih_build_scatter_gather - main sg creation routine
951 * @ioc: per adapter object
952 * @scmd: scsi command
953 * @smid: system request message index
954 * Context: none.
955 *
956 * The main routine that builds scatter gather table from a given
957 * scsi request sent via the .queuecommand main handler.
958 *
959 * Returns 0 success, anything else error
960 */
961 static int
962 _scsih_build_scatter_gather(struct MPT2SAS_ADAPTER *ioc,
963 struct scsi_cmnd *scmd, u16 smid)
964 {
965 Mpi2SCSIIORequest_t *mpi_request;
966 dma_addr_t chain_dma;
967 struct scatterlist *sg_scmd;
968 void *sg_local, *chain;
969 u32 chain_offset;
970 u32 chain_length;
971 u32 chain_flags;
972 int sges_left;
973 u32 sges_in_segment;
974 u32 sgl_flags;
975 u32 sgl_flags_last_element;
976 u32 sgl_flags_end_buffer;
977
978 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
979
980 /* init scatter gather flags */
981 sgl_flags = MPI2_SGE_FLAGS_SIMPLE_ELEMENT;
982 if (scmd->sc_data_direction == DMA_TO_DEVICE)
983 sgl_flags |= MPI2_SGE_FLAGS_HOST_TO_IOC;
984 sgl_flags_last_element = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT)
985 << MPI2_SGE_FLAGS_SHIFT;
986 sgl_flags_end_buffer = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT |
987 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST)
988 << MPI2_SGE_FLAGS_SHIFT;
989 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
990
991 sg_scmd = scsi_sglist(scmd);
992 sges_left = scsi_dma_map(scmd);
993 if (sges_left < 0) {
994 sdev_printk(KERN_ERR, scmd->device, "pci_map_sg"
995 " failed: request for %d bytes!\n", scsi_bufflen(scmd));
996 return -ENOMEM;
997 }
998
999 sg_local = &mpi_request->SGL;
1000 sges_in_segment = ioc->max_sges_in_main_message;
1001 if (sges_left <= sges_in_segment)
1002 goto fill_in_last_segment;
1003
1004 mpi_request->ChainOffset = (offsetof(Mpi2SCSIIORequest_t, SGL) +
1005 (sges_in_segment * ioc->sge_size))/4;
1006
1007 /* fill in main message segment when there is a chain following */
1008 while (sges_in_segment) {
1009 if (sges_in_segment == 1)
1010 ioc->base_add_sg_single(sg_local,
1011 sgl_flags_last_element | sg_dma_len(sg_scmd),
1012 sg_dma_address(sg_scmd));
1013 else
1014 ioc->base_add_sg_single(sg_local, sgl_flags |
1015 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1016 sg_scmd = sg_next(sg_scmd);
1017 sg_local += ioc->sge_size;
1018 sges_left--;
1019 sges_in_segment--;
1020 }
1021
1022 /* initializing the chain flags and pointers */
1023 chain_flags = MPI2_SGE_FLAGS_CHAIN_ELEMENT << MPI2_SGE_FLAGS_SHIFT;
1024 chain = _scsih_get_chain_buffer(ioc, smid);
1025 chain_dma = _scsih_get_chain_buffer_dma(ioc, smid);
1026 do {
1027 sges_in_segment = (sges_left <=
1028 ioc->max_sges_in_chain_message) ? sges_left :
1029 ioc->max_sges_in_chain_message;
1030 chain_offset = (sges_left == sges_in_segment) ?
1031 0 : (sges_in_segment * ioc->sge_size)/4;
1032 chain_length = sges_in_segment * ioc->sge_size;
1033 if (chain_offset) {
1034 chain_offset = chain_offset <<
1035 MPI2_SGE_CHAIN_OFFSET_SHIFT;
1036 chain_length += ioc->sge_size;
1037 }
1038 ioc->base_add_sg_single(sg_local, chain_flags | chain_offset |
1039 chain_length, chain_dma);
1040 sg_local = chain;
1041 if (!chain_offset)
1042 goto fill_in_last_segment;
1043
1044 /* fill in chain segments */
1045 while (sges_in_segment) {
1046 if (sges_in_segment == 1)
1047 ioc->base_add_sg_single(sg_local,
1048 sgl_flags_last_element |
1049 sg_dma_len(sg_scmd),
1050 sg_dma_address(sg_scmd));
1051 else
1052 ioc->base_add_sg_single(sg_local, sgl_flags |
1053 sg_dma_len(sg_scmd),
1054 sg_dma_address(sg_scmd));
1055 sg_scmd = sg_next(sg_scmd);
1056 sg_local += ioc->sge_size;
1057 sges_left--;
1058 sges_in_segment--;
1059 }
1060
1061 chain_dma += ioc->request_sz;
1062 chain += ioc->request_sz;
1063 } while (1);
1064
1065
1066 fill_in_last_segment:
1067
1068 /* fill the last segment */
1069 while (sges_left) {
1070 if (sges_left == 1)
1071 ioc->base_add_sg_single(sg_local, sgl_flags_end_buffer |
1072 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1073 else
1074 ioc->base_add_sg_single(sg_local, sgl_flags |
1075 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1076 sg_scmd = sg_next(sg_scmd);
1077 sg_local += ioc->sge_size;
1078 sges_left--;
1079 }
1080
1081 return 0;
1082 }
1083
1084 /**
1085 * _scsih_change_queue_depth - setting device queue depth
1086 * @sdev: scsi device struct
1087 * @qdepth: requested queue depth
1088 * @reason: calling context
1089 *
1090 * Returns queue depth.
1091 */
1092 static int
1093 _scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1094 {
1095 struct Scsi_Host *shost = sdev->host;
1096 int max_depth;
1097 int tag_type;
1098 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1099 struct MPT2SAS_DEVICE *sas_device_priv_data;
1100 struct MPT2SAS_TARGET *sas_target_priv_data;
1101 struct _sas_device *sas_device;
1102 unsigned long flags;
1103
1104 if (reason != SCSI_QDEPTH_DEFAULT)
1105 return -EOPNOTSUPP;
1106
1107 max_depth = shost->can_queue;
1108
1109 /* limit max device queue for SATA to 32 */
1110 sas_device_priv_data = sdev->hostdata;
1111 if (!sas_device_priv_data)
1112 goto not_sata;
1113 sas_target_priv_data = sas_device_priv_data->sas_target;
1114 if (!sas_target_priv_data)
1115 goto not_sata;
1116 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))
1117 goto not_sata;
1118 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1119 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1120 sas_device_priv_data->sas_target->sas_address);
1121 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1122 if (sas_device && sas_device->device_info &
1123 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1124 max_depth = MPT2SAS_SATA_QUEUE_DEPTH;
1125
1126 not_sata:
1127
1128 if (!sdev->tagged_supported)
1129 max_depth = 1;
1130 if (qdepth > max_depth)
1131 qdepth = max_depth;
1132 tag_type = (qdepth == 1) ? 0 : MSG_SIMPLE_TAG;
1133 scsi_adjust_queue_depth(sdev, tag_type, qdepth);
1134
1135 if (sdev->inquiry_len > 7)
1136 sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), "
1137 "simple(%d), ordered(%d), scsi_level(%d), cmd_que(%d)\n",
1138 sdev->queue_depth, sdev->tagged_supported, sdev->simple_tags,
1139 sdev->ordered_tags, sdev->scsi_level,
1140 (sdev->inquiry[7] & 2) >> 1);
1141
1142 return sdev->queue_depth;
1143 }
1144
1145 /**
1146 * _scsih_change_queue_type - changing device queue tag type
1147 * @sdev: scsi device struct
1148 * @tag_type: requested tag type
1149 *
1150 * Returns queue tag type.
1151 */
1152 static int
1153 _scsih_change_queue_type(struct scsi_device *sdev, int tag_type)
1154 {
1155 if (sdev->tagged_supported) {
1156 scsi_set_tag_type(sdev, tag_type);
1157 if (tag_type)
1158 scsi_activate_tcq(sdev, sdev->queue_depth);
1159 else
1160 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1161 } else
1162 tag_type = 0;
1163
1164 return tag_type;
1165 }
1166
1167 /**
1168 * _scsih_target_alloc - target add routine
1169 * @starget: scsi target struct
1170 *
1171 * Returns 0 if ok. Any other return is assumed to be an error and
1172 * the device is ignored.
1173 */
1174 static int
1175 _scsih_target_alloc(struct scsi_target *starget)
1176 {
1177 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1178 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1179 struct MPT2SAS_TARGET *sas_target_priv_data;
1180 struct _sas_device *sas_device;
1181 struct _raid_device *raid_device;
1182 unsigned long flags;
1183 struct sas_rphy *rphy;
1184
1185 sas_target_priv_data = kzalloc(sizeof(struct scsi_target), GFP_KERNEL);
1186 if (!sas_target_priv_data)
1187 return -ENOMEM;
1188
1189 starget->hostdata = sas_target_priv_data;
1190 sas_target_priv_data->starget = starget;
1191 sas_target_priv_data->handle = MPT2SAS_INVALID_DEVICE_HANDLE;
1192
1193 /* RAID volumes */
1194 if (starget->channel == RAID_CHANNEL) {
1195 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1196 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1197 starget->channel);
1198 if (raid_device) {
1199 sas_target_priv_data->handle = raid_device->handle;
1200 sas_target_priv_data->sas_address = raid_device->wwid;
1201 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME;
1202 raid_device->starget = starget;
1203 }
1204 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1205 return 0;
1206 }
1207
1208 /* sas/sata devices */
1209 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1210 rphy = dev_to_rphy(starget->dev.parent);
1211 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1212 rphy->identify.sas_address);
1213
1214 if (sas_device) {
1215 sas_target_priv_data->handle = sas_device->handle;
1216 sas_target_priv_data->sas_address = sas_device->sas_address;
1217 sas_device->starget = starget;
1218 sas_device->id = starget->id;
1219 sas_device->channel = starget->channel;
1220 if (sas_device->hidden_raid_component)
1221 sas_target_priv_data->flags |=
1222 MPT_TARGET_FLAGS_RAID_COMPONENT;
1223 }
1224 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1225
1226 return 0;
1227 }
1228
1229 /**
1230 * _scsih_target_destroy - target destroy routine
1231 * @starget: scsi target struct
1232 *
1233 * Returns nothing.
1234 */
1235 static void
1236 _scsih_target_destroy(struct scsi_target *starget)
1237 {
1238 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1239 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1240 struct MPT2SAS_TARGET *sas_target_priv_data;
1241 struct _sas_device *sas_device;
1242 struct _raid_device *raid_device;
1243 unsigned long flags;
1244 struct sas_rphy *rphy;
1245
1246 sas_target_priv_data = starget->hostdata;
1247 if (!sas_target_priv_data)
1248 return;
1249
1250 if (starget->channel == RAID_CHANNEL) {
1251 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1252 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1253 starget->channel);
1254 if (raid_device) {
1255 raid_device->starget = NULL;
1256 raid_device->sdev = NULL;
1257 }
1258 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1259 goto out;
1260 }
1261
1262 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1263 rphy = dev_to_rphy(starget->dev.parent);
1264 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1265 rphy->identify.sas_address);
1266 if (sas_device && (sas_device->starget == starget) &&
1267 (sas_device->id == starget->id) &&
1268 (sas_device->channel == starget->channel))
1269 sas_device->starget = NULL;
1270
1271 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1272
1273 out:
1274 kfree(sas_target_priv_data);
1275 starget->hostdata = NULL;
1276 }
1277
1278 /**
1279 * _scsih_slave_alloc - device add routine
1280 * @sdev: scsi device struct
1281 *
1282 * Returns 0 if ok. Any other return is assumed to be an error and
1283 * the device is ignored.
1284 */
1285 static int
1286 _scsih_slave_alloc(struct scsi_device *sdev)
1287 {
1288 struct Scsi_Host *shost;
1289 struct MPT2SAS_ADAPTER *ioc;
1290 struct MPT2SAS_TARGET *sas_target_priv_data;
1291 struct MPT2SAS_DEVICE *sas_device_priv_data;
1292 struct scsi_target *starget;
1293 struct _raid_device *raid_device;
1294 unsigned long flags;
1295
1296 sas_device_priv_data = kzalloc(sizeof(struct scsi_device), GFP_KERNEL);
1297 if (!sas_device_priv_data)
1298 return -ENOMEM;
1299
1300 sas_device_priv_data->lun = sdev->lun;
1301 sas_device_priv_data->flags = MPT_DEVICE_FLAGS_INIT;
1302
1303 starget = scsi_target(sdev);
1304 sas_target_priv_data = starget->hostdata;
1305 sas_target_priv_data->num_luns++;
1306 sas_device_priv_data->sas_target = sas_target_priv_data;
1307 sdev->hostdata = sas_device_priv_data;
1308 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT))
1309 sdev->no_uld_attach = 1;
1310
1311 shost = dev_to_shost(&starget->dev);
1312 ioc = shost_priv(shost);
1313 if (starget->channel == RAID_CHANNEL) {
1314 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1315 raid_device = _scsih_raid_device_find_by_id(ioc,
1316 starget->id, starget->channel);
1317 if (raid_device)
1318 raid_device->sdev = sdev; /* raid is single lun */
1319 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1320 }
1321
1322 return 0;
1323 }
1324
1325 /**
1326 * _scsih_slave_destroy - device destroy routine
1327 * @sdev: scsi device struct
1328 *
1329 * Returns nothing.
1330 */
1331 static void
1332 _scsih_slave_destroy(struct scsi_device *sdev)
1333 {
1334 struct MPT2SAS_TARGET *sas_target_priv_data;
1335 struct scsi_target *starget;
1336
1337 if (!sdev->hostdata)
1338 return;
1339
1340 starget = scsi_target(sdev);
1341 sas_target_priv_data = starget->hostdata;
1342 sas_target_priv_data->num_luns--;
1343 kfree(sdev->hostdata);
1344 sdev->hostdata = NULL;
1345 }
1346
1347 /**
1348 * _scsih_display_sata_capabilities - sata capabilities
1349 * @ioc: per adapter object
1350 * @sas_device: the sas_device object
1351 * @sdev: scsi device struct
1352 */
1353 static void
1354 _scsih_display_sata_capabilities(struct MPT2SAS_ADAPTER *ioc,
1355 struct _sas_device *sas_device, struct scsi_device *sdev)
1356 {
1357 Mpi2ConfigReply_t mpi_reply;
1358 Mpi2SasDevicePage0_t sas_device_pg0;
1359 u32 ioc_status;
1360 u16 flags;
1361 u32 device_info;
1362
1363 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
1364 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, sas_device->handle))) {
1365 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1366 ioc->name, __FILE__, __LINE__, __func__);
1367 return;
1368 }
1369
1370 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1371 MPI2_IOCSTATUS_MASK;
1372 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
1373 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1374 ioc->name, __FILE__, __LINE__, __func__);
1375 return;
1376 }
1377
1378 flags = le16_to_cpu(sas_device_pg0.Flags);
1379 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
1380
1381 sdev_printk(KERN_INFO, sdev,
1382 "atapi(%s), ncq(%s), asyn_notify(%s), smart(%s), fua(%s), "
1383 "sw_preserve(%s)\n",
1384 (device_info & MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? "y" : "n",
1385 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED) ? "y" : "n",
1386 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY) ? "y" :
1387 "n",
1388 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SMART_SUPPORTED) ? "y" : "n",
1389 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED) ? "y" : "n",
1390 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SW_PRESERVE) ? "y" : "n");
1391 }
1392
1393 /**
1394 * _scsih_is_raid - return boolean indicating device is raid volume
1395 * @dev the device struct object
1396 */
1397 static int
1398 _scsih_is_raid(struct device *dev)
1399 {
1400 struct scsi_device *sdev = to_scsi_device(dev);
1401
1402 return (sdev->channel == RAID_CHANNEL) ? 1 : 0;
1403 }
1404
1405 /**
1406 * _scsih_get_resync - get raid volume resync percent complete
1407 * @dev the device struct object
1408 */
1409 static void
1410 _scsih_get_resync(struct device *dev)
1411 {
1412 struct scsi_device *sdev = to_scsi_device(dev);
1413 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
1414 static struct _raid_device *raid_device;
1415 unsigned long flags;
1416 Mpi2RaidVolPage0_t vol_pg0;
1417 Mpi2ConfigReply_t mpi_reply;
1418 u32 volume_status_flags;
1419 u8 percent_complete = 0;
1420
1421 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1422 raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
1423 sdev->channel);
1424 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1425
1426 if (!raid_device)
1427 goto out;
1428
1429 if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
1430 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle,
1431 sizeof(Mpi2RaidVolPage0_t))) {
1432 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1433 ioc->name, __FILE__, __LINE__, __func__);
1434 goto out;
1435 }
1436
1437 volume_status_flags = le32_to_cpu(vol_pg0.VolumeStatusFlags);
1438 if (volume_status_flags & MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS)
1439 percent_complete = raid_device->percent_complete;
1440 out:
1441 raid_set_resync(mpt2sas_raid_template, dev, percent_complete);
1442 }
1443
1444 /**
1445 * _scsih_get_state - get raid volume level
1446 * @dev the device struct object
1447 */
1448 static void
1449 _scsih_get_state(struct device *dev)
1450 {
1451 struct scsi_device *sdev = to_scsi_device(dev);
1452 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
1453 static struct _raid_device *raid_device;
1454 unsigned long flags;
1455 Mpi2RaidVolPage0_t vol_pg0;
1456 Mpi2ConfigReply_t mpi_reply;
1457 u32 volstate;
1458 enum raid_state state = RAID_STATE_UNKNOWN;
1459
1460 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1461 raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
1462 sdev->channel);
1463 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1464
1465 if (!raid_device)
1466 goto out;
1467
1468 if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
1469 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle,
1470 sizeof(Mpi2RaidVolPage0_t))) {
1471 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1472 ioc->name, __FILE__, __LINE__, __func__);
1473 goto out;
1474 }
1475
1476 volstate = le32_to_cpu(vol_pg0.VolumeStatusFlags);
1477 if (volstate & MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS) {
1478 state = RAID_STATE_RESYNCING;
1479 goto out;
1480 }
1481
1482 switch (vol_pg0.VolumeState) {
1483 case MPI2_RAID_VOL_STATE_OPTIMAL:
1484 case MPI2_RAID_VOL_STATE_ONLINE:
1485 state = RAID_STATE_ACTIVE;
1486 break;
1487 case MPI2_RAID_VOL_STATE_DEGRADED:
1488 state = RAID_STATE_DEGRADED;
1489 break;
1490 case MPI2_RAID_VOL_STATE_FAILED:
1491 case MPI2_RAID_VOL_STATE_MISSING:
1492 state = RAID_STATE_OFFLINE;
1493 break;
1494 }
1495 out:
1496 raid_set_state(mpt2sas_raid_template, dev, state);
1497 }
1498
1499 /**
1500 * _scsih_set_level - set raid level
1501 * @sdev: scsi device struct
1502 * @raid_device: raid_device object
1503 */
1504 static void
1505 _scsih_set_level(struct scsi_device *sdev, struct _raid_device *raid_device)
1506 {
1507 enum raid_level level = RAID_LEVEL_UNKNOWN;
1508
1509 switch (raid_device->volume_type) {
1510 case MPI2_RAID_VOL_TYPE_RAID0:
1511 level = RAID_LEVEL_0;
1512 break;
1513 case MPI2_RAID_VOL_TYPE_RAID10:
1514 level = RAID_LEVEL_10;
1515 break;
1516 case MPI2_RAID_VOL_TYPE_RAID1E:
1517 level = RAID_LEVEL_1E;
1518 break;
1519 case MPI2_RAID_VOL_TYPE_RAID1:
1520 level = RAID_LEVEL_1;
1521 break;
1522 }
1523
1524 raid_set_level(mpt2sas_raid_template, &sdev->sdev_gendev, level);
1525 }
1526
1527 /**
1528 * _scsih_get_volume_capabilities - volume capabilities
1529 * @ioc: per adapter object
1530 * @sas_device: the raid_device object
1531 */
1532 static void
1533 _scsih_get_volume_capabilities(struct MPT2SAS_ADAPTER *ioc,
1534 struct _raid_device *raid_device)
1535 {
1536 Mpi2RaidVolPage0_t *vol_pg0;
1537 Mpi2RaidPhysDiskPage0_t pd_pg0;
1538 Mpi2SasDevicePage0_t sas_device_pg0;
1539 Mpi2ConfigReply_t mpi_reply;
1540 u16 sz;
1541 u8 num_pds;
1542
1543 if ((mpt2sas_config_get_number_pds(ioc, raid_device->handle,
1544 &num_pds)) || !num_pds) {
1545 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1546 ioc->name, __FILE__, __LINE__, __func__);
1547 return;
1548 }
1549
1550 raid_device->num_pds = num_pds;
1551 sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
1552 sizeof(Mpi2RaidVol0PhysDisk_t));
1553 vol_pg0 = kzalloc(sz, GFP_KERNEL);
1554 if (!vol_pg0) {
1555 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1556 ioc->name, __FILE__, __LINE__, __func__);
1557 return;
1558 }
1559
1560 if ((mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
1561 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
1562 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1563 ioc->name, __FILE__, __LINE__, __func__);
1564 kfree(vol_pg0);
1565 return;
1566 }
1567
1568 raid_device->volume_type = vol_pg0->VolumeType;
1569
1570 /* figure out what the underlying devices are by
1571 * obtaining the device_info bits for the 1st device
1572 */
1573 if (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
1574 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
1575 vol_pg0->PhysDisk[0].PhysDiskNum))) {
1576 if (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
1577 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
1578 le16_to_cpu(pd_pg0.DevHandle)))) {
1579 raid_device->device_info =
1580 le32_to_cpu(sas_device_pg0.DeviceInfo);
1581 }
1582 }
1583
1584 kfree(vol_pg0);
1585 }
1586
1587 /**
1588 * _scsih_enable_tlr - setting TLR flags
1589 * @ioc: per adapter object
1590 * @sdev: scsi device struct
1591 *
1592 * Enabling Transaction Layer Retries for tape devices when
1593 * vpd page 0x90 is present
1594 *
1595 */
1596 static void
1597 _scsih_enable_tlr(struct MPT2SAS_ADAPTER *ioc, struct scsi_device *sdev)
1598 {
1599 /* only for TAPE */
1600 if (sdev->type != TYPE_TAPE)
1601 return;
1602
1603 if (!(ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR))
1604 return;
1605
1606 sas_enable_tlr(sdev);
1607 sdev_printk(KERN_INFO, sdev, "TLR %s\n",
1608 sas_is_tlr_enabled(sdev) ? "Enabled" : "Disabled");
1609 return;
1610
1611 }
1612
1613 /**
1614 * _scsih_slave_configure - device configure routine.
1615 * @sdev: scsi device struct
1616 *
1617 * Returns 0 if ok. Any other return is assumed to be an error and
1618 * the device is ignored.
1619 */
1620 static int
1621 _scsih_slave_configure(struct scsi_device *sdev)
1622 {
1623 struct Scsi_Host *shost = sdev->host;
1624 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1625 struct MPT2SAS_DEVICE *sas_device_priv_data;
1626 struct MPT2SAS_TARGET *sas_target_priv_data;
1627 struct _sas_device *sas_device;
1628 struct _raid_device *raid_device;
1629 unsigned long flags;
1630 int qdepth;
1631 u8 ssp_target = 0;
1632 char *ds = "";
1633 char *r_level = "";
1634
1635 qdepth = 1;
1636 sas_device_priv_data = sdev->hostdata;
1637 sas_device_priv_data->configured_lun = 1;
1638 sas_device_priv_data->flags &= ~MPT_DEVICE_FLAGS_INIT;
1639 sas_target_priv_data = sas_device_priv_data->sas_target;
1640
1641 /* raid volume handling */
1642 if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME) {
1643
1644 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1645 raid_device = _scsih_raid_device_find_by_handle(ioc,
1646 sas_target_priv_data->handle);
1647 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1648 if (!raid_device) {
1649 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1650 ioc->name, __FILE__, __LINE__, __func__);
1651 return 0;
1652 }
1653
1654 _scsih_get_volume_capabilities(ioc, raid_device);
1655
1656 /* RAID Queue Depth Support
1657 * IS volume = underlying qdepth of drive type, either
1658 * MPT2SAS_SAS_QUEUE_DEPTH or MPT2SAS_SATA_QUEUE_DEPTH
1659 * IM/IME/R10 = 128 (MPT2SAS_RAID_QUEUE_DEPTH)
1660 */
1661 if (raid_device->device_info &
1662 MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
1663 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
1664 ds = "SSP";
1665 } else {
1666 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
1667 if (raid_device->device_info &
1668 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1669 ds = "SATA";
1670 else
1671 ds = "STP";
1672 }
1673
1674 switch (raid_device->volume_type) {
1675 case MPI2_RAID_VOL_TYPE_RAID0:
1676 r_level = "RAID0";
1677 break;
1678 case MPI2_RAID_VOL_TYPE_RAID1E:
1679 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1680 if (ioc->manu_pg10.OEMIdentifier &&
1681 (ioc->manu_pg10.GenericFlags0 &
1682 MFG10_GF0_R10_DISPLAY) &&
1683 !(raid_device->num_pds % 2))
1684 r_level = "RAID10";
1685 else
1686 r_level = "RAID1E";
1687 break;
1688 case MPI2_RAID_VOL_TYPE_RAID1:
1689 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1690 r_level = "RAID1";
1691 break;
1692 case MPI2_RAID_VOL_TYPE_RAID10:
1693 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1694 r_level = "RAID10";
1695 break;
1696 case MPI2_RAID_VOL_TYPE_UNKNOWN:
1697 default:
1698 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1699 r_level = "RAIDX";
1700 break;
1701 }
1702
1703 sdev_printk(KERN_INFO, sdev, "%s: "
1704 "handle(0x%04x), wwid(0x%016llx), pd_count(%d), type(%s)\n",
1705 r_level, raid_device->handle,
1706 (unsigned long long)raid_device->wwid,
1707 raid_device->num_pds, ds);
1708 _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
1709 /* raid transport support */
1710 _scsih_set_level(sdev, raid_device);
1711 return 0;
1712 }
1713
1714 /* non-raid handling */
1715 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1716 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1717 sas_device_priv_data->sas_target->sas_address);
1718 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1719 if (sas_device) {
1720 if (sas_target_priv_data->flags &
1721 MPT_TARGET_FLAGS_RAID_COMPONENT) {
1722 mpt2sas_config_get_volume_handle(ioc,
1723 sas_device->handle, &sas_device->volume_handle);
1724 mpt2sas_config_get_volume_wwid(ioc,
1725 sas_device->volume_handle,
1726 &sas_device->volume_wwid);
1727 }
1728 if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
1729 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
1730 ssp_target = 1;
1731 ds = "SSP";
1732 } else {
1733 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
1734 if (sas_device->device_info &
1735 MPI2_SAS_DEVICE_INFO_STP_TARGET)
1736 ds = "STP";
1737 else if (sas_device->device_info &
1738 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1739 ds = "SATA";
1740 }
1741
1742 sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), "
1743 "sas_addr(0x%016llx), device_name(0x%016llx)\n",
1744 ds, sas_device->handle,
1745 (unsigned long long)sas_device->sas_address,
1746 (unsigned long long)sas_device->device_name);
1747 sdev_printk(KERN_INFO, sdev, "%s: "
1748 "enclosure_logical_id(0x%016llx), slot(%d)\n", ds,
1749 (unsigned long long) sas_device->enclosure_logical_id,
1750 sas_device->slot);
1751
1752 if (!ssp_target)
1753 _scsih_display_sata_capabilities(ioc, sas_device, sdev);
1754 }
1755
1756 _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
1757
1758 if (ssp_target) {
1759 sas_read_port_mode_page(sdev);
1760 _scsih_enable_tlr(ioc, sdev);
1761 }
1762 return 0;
1763 }
1764
1765 /**
1766 * _scsih_bios_param - fetch head, sector, cylinder info for a disk
1767 * @sdev: scsi device struct
1768 * @bdev: pointer to block device context
1769 * @capacity: device size (in 512 byte sectors)
1770 * @params: three element array to place output:
1771 * params[0] number of heads (max 255)
1772 * params[1] number of sectors (max 63)
1773 * params[2] number of cylinders
1774 *
1775 * Return nothing.
1776 */
1777 static int
1778 _scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev,
1779 sector_t capacity, int params[])
1780 {
1781 int heads;
1782 int sectors;
1783 sector_t cylinders;
1784 ulong dummy;
1785
1786 heads = 64;
1787 sectors = 32;
1788
1789 dummy = heads * sectors;
1790 cylinders = capacity;
1791 sector_div(cylinders, dummy);
1792
1793 /*
1794 * Handle extended translation size for logical drives
1795 * > 1Gb
1796 */
1797 if ((ulong)capacity >= 0x200000) {
1798 heads = 255;
1799 sectors = 63;
1800 dummy = heads * sectors;
1801 cylinders = capacity;
1802 sector_div(cylinders, dummy);
1803 }
1804
1805 /* return result */
1806 params[0] = heads;
1807 params[1] = sectors;
1808 params[2] = cylinders;
1809
1810 return 0;
1811 }
1812
1813 /**
1814 * _scsih_response_code - translation of device response code
1815 * @ioc: per adapter object
1816 * @response_code: response code returned by the device
1817 *
1818 * Return nothing.
1819 */
1820 static void
1821 _scsih_response_code(struct MPT2SAS_ADAPTER *ioc, u8 response_code)
1822 {
1823 char *desc;
1824
1825 switch (response_code) {
1826 case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE:
1827 desc = "task management request completed";
1828 break;
1829 case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME:
1830 desc = "invalid frame";
1831 break;
1832 case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
1833 desc = "task management request not supported";
1834 break;
1835 case MPI2_SCSITASKMGMT_RSP_TM_FAILED:
1836 desc = "task management request failed";
1837 break;
1838 case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED:
1839 desc = "task management request succeeded";
1840 break;
1841 case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN:
1842 desc = "invalid lun";
1843 break;
1844 case 0xA:
1845 desc = "overlapped tag attempted";
1846 break;
1847 case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
1848 desc = "task queued, however not sent to target";
1849 break;
1850 default:
1851 desc = "unknown";
1852 break;
1853 }
1854 printk(MPT2SAS_WARN_FMT "response_code(0x%01x): %s\n",
1855 ioc->name, response_code, desc);
1856 }
1857
1858 /**
1859 * _scsih_tm_done - tm completion routine
1860 * @ioc: per adapter object
1861 * @smid: system request message index
1862 * @msix_index: MSIX table index supplied by the OS
1863 * @reply: reply message frame(lower 32bit addr)
1864 * Context: none.
1865 *
1866 * The callback handler when using scsih_issue_tm.
1867 *
1868 * Return 1 meaning mf should be freed from _base_interrupt
1869 * 0 means the mf is freed from this function.
1870 */
1871 static u8
1872 _scsih_tm_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
1873 {
1874 MPI2DefaultReply_t *mpi_reply;
1875
1876 if (ioc->tm_cmds.status == MPT2_CMD_NOT_USED)
1877 return 1;
1878 if (ioc->tm_cmds.smid != smid)
1879 return 1;
1880 ioc->tm_cmds.status |= MPT2_CMD_COMPLETE;
1881 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
1882 if (mpi_reply) {
1883 memcpy(ioc->tm_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
1884 ioc->tm_cmds.status |= MPT2_CMD_REPLY_VALID;
1885 }
1886 ioc->tm_cmds.status &= ~MPT2_CMD_PENDING;
1887 complete(&ioc->tm_cmds.done);
1888 return 1;
1889 }
1890
1891 /**
1892 * mpt2sas_scsih_set_tm_flag - set per target tm_busy
1893 * @ioc: per adapter object
1894 * @handle: device handle
1895 *
1896 * During taskmangement request, we need to freeze the device queue.
1897 */
1898 void
1899 mpt2sas_scsih_set_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
1900 {
1901 struct MPT2SAS_DEVICE *sas_device_priv_data;
1902 struct scsi_device *sdev;
1903 u8 skip = 0;
1904
1905 shost_for_each_device(sdev, ioc->shost) {
1906 if (skip)
1907 continue;
1908 sas_device_priv_data = sdev->hostdata;
1909 if (!sas_device_priv_data)
1910 continue;
1911 if (sas_device_priv_data->sas_target->handle == handle) {
1912 sas_device_priv_data->sas_target->tm_busy = 1;
1913 skip = 1;
1914 ioc->ignore_loginfos = 1;
1915 }
1916 }
1917 }
1918
1919 /**
1920 * mpt2sas_scsih_clear_tm_flag - clear per target tm_busy
1921 * @ioc: per adapter object
1922 * @handle: device handle
1923 *
1924 * During taskmangement request, we need to freeze the device queue.
1925 */
1926 void
1927 mpt2sas_scsih_clear_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
1928 {
1929 struct MPT2SAS_DEVICE *sas_device_priv_data;
1930 struct scsi_device *sdev;
1931 u8 skip = 0;
1932
1933 shost_for_each_device(sdev, ioc->shost) {
1934 if (skip)
1935 continue;
1936 sas_device_priv_data = sdev->hostdata;
1937 if (!sas_device_priv_data)
1938 continue;
1939 if (sas_device_priv_data->sas_target->handle == handle) {
1940 sas_device_priv_data->sas_target->tm_busy = 0;
1941 skip = 1;
1942 ioc->ignore_loginfos = 0;
1943 }
1944 }
1945 }
1946
1947
1948 /**
1949 * mpt2sas_scsih_issue_tm - main routine for sending tm requests
1950 * @ioc: per adapter struct
1951 * @device_handle: device handle
1952 * @channel: the channel assigned by the OS
1953 * @id: the id assigned by the OS
1954 * @lun: lun number
1955 * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
1956 * @smid_task: smid assigned to the task
1957 * @timeout: timeout in seconds
1958 * Context: user
1959 *
1960 * A generic API for sending task management requests to firmware.
1961 *
1962 * The callback index is set inside `ioc->tm_cb_idx`.
1963 *
1964 * Return SUCCESS or FAILED.
1965 */
1966 int
1967 mpt2sas_scsih_issue_tm(struct MPT2SAS_ADAPTER *ioc, u16 handle, uint channel,
1968 uint id, uint lun, u8 type, u16 smid_task, ulong timeout,
1969 struct scsi_cmnd *scmd)
1970 {
1971 Mpi2SCSITaskManagementRequest_t *mpi_request;
1972 Mpi2SCSITaskManagementReply_t *mpi_reply;
1973 u16 smid = 0;
1974 u32 ioc_state;
1975 unsigned long timeleft;
1976 struct scsi_cmnd *scmd_lookup;
1977 int rc;
1978
1979 mutex_lock(&ioc->tm_cmds.mutex);
1980 if (ioc->tm_cmds.status != MPT2_CMD_NOT_USED) {
1981 printk(MPT2SAS_INFO_FMT "%s: tm_cmd busy!!!\n",
1982 __func__, ioc->name);
1983 rc = FAILED;
1984 goto err_out;
1985 }
1986
1987 if (ioc->shost_recovery || ioc->remove_host) {
1988 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
1989 __func__, ioc->name);
1990 rc = FAILED;
1991 goto err_out;
1992 }
1993
1994 ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
1995 if (ioc_state & MPI2_DOORBELL_USED) {
1996 dhsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "unexpected doorbell "
1997 "active!\n", ioc->name));
1998 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1999 FORCE_BIG_HAMMER);
2000 rc = SUCCESS;
2001 goto err_out;
2002 }
2003
2004 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
2005 mpt2sas_base_fault_info(ioc, ioc_state &
2006 MPI2_DOORBELL_DATA_MASK);
2007 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2008 FORCE_BIG_HAMMER);
2009 rc = SUCCESS;
2010 goto err_out;
2011 }
2012
2013 smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_cb_idx);
2014 if (!smid) {
2015 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
2016 ioc->name, __func__);
2017 rc = FAILED;
2018 goto err_out;
2019 }
2020
2021 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "sending tm: handle(0x%04x),"
2022 " task_type(0x%02x), smid(%d)\n", ioc->name, handle, type,
2023 smid_task));
2024 ioc->tm_cmds.status = MPT2_CMD_PENDING;
2025 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
2026 ioc->tm_cmds.smid = smid;
2027 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
2028 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
2029 mpi_request->DevHandle = cpu_to_le16(handle);
2030 mpi_request->TaskType = type;
2031 mpi_request->TaskMID = cpu_to_le16(smid_task);
2032 int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN);
2033 mpt2sas_scsih_set_tm_flag(ioc, handle);
2034 init_completion(&ioc->tm_cmds.done);
2035 mpt2sas_base_put_smid_hi_priority(ioc, smid);
2036 timeleft = wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
2037 if (!(ioc->tm_cmds.status & MPT2_CMD_COMPLETE)) {
2038 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
2039 ioc->name, __func__);
2040 _debug_dump_mf(mpi_request,
2041 sizeof(Mpi2SCSITaskManagementRequest_t)/4);
2042 if (!(ioc->tm_cmds.status & MPT2_CMD_RESET)) {
2043 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2044 FORCE_BIG_HAMMER);
2045 rc = SUCCESS;
2046 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
2047 mpt2sas_scsih_clear_tm_flag(ioc, handle);
2048 goto err_out;
2049 }
2050 }
2051
2052 if (ioc->tm_cmds.status & MPT2_CMD_REPLY_VALID) {
2053 mpi_reply = ioc->tm_cmds.reply;
2054 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "complete tm: "
2055 "ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n",
2056 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
2057 le32_to_cpu(mpi_reply->IOCLogInfo),
2058 le32_to_cpu(mpi_reply->TerminationCount)));
2059 if (ioc->logging_level & MPT_DEBUG_TM) {
2060 _scsih_response_code(ioc, mpi_reply->ResponseCode);
2061 if (mpi_reply->IOCStatus)
2062 _debug_dump_mf(mpi_request,
2063 sizeof(Mpi2SCSITaskManagementRequest_t)/4);
2064 }
2065 }
2066
2067 /* sanity check:
2068 * Check to see the commands were terminated.
2069 * This is only needed for eh callbacks, hence the scmd check.
2070 */
2071 rc = FAILED;
2072 if (scmd == NULL)
2073 goto bypass_sanity_checks;
2074 switch (type) {
2075 case MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
2076 scmd_lookup = _scsih_scsi_lookup_get(ioc, smid_task);
2077 if (scmd_lookup && (scmd_lookup->serial_number ==
2078 scmd->serial_number))
2079 rc = FAILED;
2080 else
2081 rc = SUCCESS;
2082 break;
2083
2084 case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
2085 if (_scsih_scsi_lookup_find_by_target(ioc, id, channel))
2086 rc = FAILED;
2087 else
2088 rc = SUCCESS;
2089 break;
2090
2091 case MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET:
2092 if (_scsih_scsi_lookup_find_by_lun(ioc, id, lun, channel))
2093 rc = FAILED;
2094 else
2095 rc = SUCCESS;
2096 break;
2097 }
2098
2099 bypass_sanity_checks:
2100
2101 mpt2sas_scsih_clear_tm_flag(ioc, handle);
2102 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
2103 mutex_unlock(&ioc->tm_cmds.mutex);
2104
2105 return rc;
2106
2107 err_out:
2108 mutex_unlock(&ioc->tm_cmds.mutex);
2109 return rc;
2110 }
2111
2112 /**
2113 * _scsih_abort - eh threads main abort routine
2114 * @sdev: scsi device struct
2115 *
2116 * Returns SUCCESS if command aborted else FAILED
2117 */
2118 static int
2119 _scsih_abort(struct scsi_cmnd *scmd)
2120 {
2121 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2122 struct MPT2SAS_DEVICE *sas_device_priv_data;
2123 u16 smid;
2124 u16 handle;
2125 int r;
2126
2127 printk(MPT2SAS_INFO_FMT "attempting task abort! scmd(%p)\n",
2128 ioc->name, scmd);
2129 scsi_print_command(scmd);
2130
2131 sas_device_priv_data = scmd->device->hostdata;
2132 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2133 printk(MPT2SAS_INFO_FMT "device been deleted! scmd(%p)\n",
2134 ioc->name, scmd);
2135 scmd->result = DID_NO_CONNECT << 16;
2136 scmd->scsi_done(scmd);
2137 r = SUCCESS;
2138 goto out;
2139 }
2140
2141 /* search for the command */
2142 smid = _scsih_scsi_lookup_find_by_scmd(ioc, scmd);
2143 if (!smid) {
2144 scmd->result = DID_RESET << 16;
2145 r = SUCCESS;
2146 goto out;
2147 }
2148
2149 /* for hidden raid components and volumes this is not supported */
2150 if (sas_device_priv_data->sas_target->flags &
2151 MPT_TARGET_FLAGS_RAID_COMPONENT ||
2152 sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_VOLUME) {
2153 scmd->result = DID_RESET << 16;
2154 r = FAILED;
2155 goto out;
2156 }
2157
2158 mpt2sas_halt_firmware(ioc);
2159
2160 handle = sas_device_priv_data->sas_target->handle;
2161 r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2162 scmd->device->id, scmd->device->lun,
2163 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30, scmd);
2164
2165 out:
2166 printk(MPT2SAS_INFO_FMT "task abort: %s scmd(%p)\n",
2167 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2168 return r;
2169 }
2170
2171 /**
2172 * _scsih_dev_reset - eh threads main device reset routine
2173 * @sdev: scsi device struct
2174 *
2175 * Returns SUCCESS if command aborted else FAILED
2176 */
2177 static int
2178 _scsih_dev_reset(struct scsi_cmnd *scmd)
2179 {
2180 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2181 struct MPT2SAS_DEVICE *sas_device_priv_data;
2182 struct _sas_device *sas_device;
2183 unsigned long flags;
2184 u16 handle;
2185 int r;
2186
2187 printk(MPT2SAS_INFO_FMT "attempting device reset! scmd(%p)\n",
2188 ioc->name, scmd);
2189 scsi_print_command(scmd);
2190
2191 sas_device_priv_data = scmd->device->hostdata;
2192 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2193 printk(MPT2SAS_INFO_FMT "device been deleted! scmd(%p)\n",
2194 ioc->name, scmd);
2195 scmd->result = DID_NO_CONNECT << 16;
2196 scmd->scsi_done(scmd);
2197 r = SUCCESS;
2198 goto out;
2199 }
2200
2201 /* for hidden raid components obtain the volume_handle */
2202 handle = 0;
2203 if (sas_device_priv_data->sas_target->flags &
2204 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2205 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2206 sas_device = _scsih_sas_device_find_by_handle(ioc,
2207 sas_device_priv_data->sas_target->handle);
2208 if (sas_device)
2209 handle = sas_device->volume_handle;
2210 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2211 } else
2212 handle = sas_device_priv_data->sas_target->handle;
2213
2214 if (!handle) {
2215 scmd->result = DID_RESET << 16;
2216 r = FAILED;
2217 goto out;
2218 }
2219
2220 r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2221 scmd->device->id, scmd->device->lun,
2222 MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 30, scmd);
2223
2224 out:
2225 printk(MPT2SAS_INFO_FMT "device reset: %s scmd(%p)\n",
2226 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2227 return r;
2228 }
2229
2230 /**
2231 * _scsih_target_reset - eh threads main target reset routine
2232 * @sdev: scsi device struct
2233 *
2234 * Returns SUCCESS if command aborted else FAILED
2235 */
2236 static int
2237 _scsih_target_reset(struct scsi_cmnd *scmd)
2238 {
2239 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2240 struct MPT2SAS_DEVICE *sas_device_priv_data;
2241 struct _sas_device *sas_device;
2242 unsigned long flags;
2243 u16 handle;
2244 int r;
2245
2246 printk(MPT2SAS_INFO_FMT "attempting target reset! scmd(%p)\n",
2247 ioc->name, scmd);
2248 scsi_print_command(scmd);
2249
2250 sas_device_priv_data = scmd->device->hostdata;
2251 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2252 printk(MPT2SAS_INFO_FMT "target been deleted! scmd(%p)\n",
2253 ioc->name, scmd);
2254 scmd->result = DID_NO_CONNECT << 16;
2255 scmd->scsi_done(scmd);
2256 r = SUCCESS;
2257 goto out;
2258 }
2259
2260 /* for hidden raid components obtain the volume_handle */
2261 handle = 0;
2262 if (sas_device_priv_data->sas_target->flags &
2263 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2264 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2265 sas_device = _scsih_sas_device_find_by_handle(ioc,
2266 sas_device_priv_data->sas_target->handle);
2267 if (sas_device)
2268 handle = sas_device->volume_handle;
2269 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2270 } else
2271 handle = sas_device_priv_data->sas_target->handle;
2272
2273 if (!handle) {
2274 scmd->result = DID_RESET << 16;
2275 r = FAILED;
2276 goto out;
2277 }
2278
2279 r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2280 scmd->device->id, 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
2281 30, scmd);
2282
2283 out:
2284 printk(MPT2SAS_INFO_FMT "target reset: %s scmd(%p)\n",
2285 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2286 return r;
2287 }
2288
2289 /**
2290 * _scsih_host_reset - eh threads main host reset routine
2291 * @sdev: scsi device struct
2292 *
2293 * Returns SUCCESS if command aborted else FAILED
2294 */
2295 static int
2296 _scsih_host_reset(struct scsi_cmnd *scmd)
2297 {
2298 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2299 int r, retval;
2300
2301 printk(MPT2SAS_INFO_FMT "attempting host reset! scmd(%p)\n",
2302 ioc->name, scmd);
2303 scsi_print_command(scmd);
2304
2305 retval = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2306 FORCE_BIG_HAMMER);
2307 r = (retval < 0) ? FAILED : SUCCESS;
2308 printk(MPT2SAS_INFO_FMT "host reset: %s scmd(%p)\n",
2309 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2310
2311 return r;
2312 }
2313
2314 /**
2315 * _scsih_fw_event_add - insert and queue up fw_event
2316 * @ioc: per adapter object
2317 * @fw_event: object describing the event
2318 * Context: This function will acquire ioc->fw_event_lock.
2319 *
2320 * This adds the firmware event object into link list, then queues it up to
2321 * be processed from user context.
2322 *
2323 * Return nothing.
2324 */
2325 static void
2326 _scsih_fw_event_add(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
2327 {
2328 unsigned long flags;
2329
2330 if (ioc->firmware_event_thread == NULL)
2331 return;
2332
2333 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2334 list_add_tail(&fw_event->list, &ioc->fw_event_list);
2335 INIT_DELAYED_WORK(&fw_event->delayed_work, _firmware_event_work);
2336 queue_delayed_work(ioc->firmware_event_thread,
2337 &fw_event->delayed_work, 0);
2338 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2339 }
2340
2341 /**
2342 * _scsih_fw_event_free - delete fw_event
2343 * @ioc: per adapter object
2344 * @fw_event: object describing the event
2345 * Context: This function will acquire ioc->fw_event_lock.
2346 *
2347 * This removes firmware event object from link list, frees associated memory.
2348 *
2349 * Return nothing.
2350 */
2351 static void
2352 _scsih_fw_event_free(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
2353 *fw_event)
2354 {
2355 unsigned long flags;
2356
2357 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2358 list_del(&fw_event->list);
2359 kfree(fw_event->event_data);
2360 kfree(fw_event);
2361 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2362 }
2363
2364
2365 /**
2366 * _scsih_queue_rescan - queue a topology rescan from user context
2367 * @ioc: per adapter object
2368 *
2369 * Return nothing.
2370 */
2371 static void
2372 _scsih_queue_rescan(struct MPT2SAS_ADAPTER *ioc)
2373 {
2374 struct fw_event_work *fw_event;
2375
2376 if (ioc->wait_for_port_enable_to_complete)
2377 return;
2378 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
2379 if (!fw_event)
2380 return;
2381 fw_event->event = MPT2SAS_RESCAN_AFTER_HOST_RESET;
2382 fw_event->ioc = ioc;
2383 _scsih_fw_event_add(ioc, fw_event);
2384 }
2385
2386 /**
2387 * _scsih_fw_event_cleanup_queue - cleanup event queue
2388 * @ioc: per adapter object
2389 *
2390 * Walk the firmware event queue, either killing timers, or waiting
2391 * for outstanding events to complete
2392 *
2393 * Return nothing.
2394 */
2395 static void
2396 _scsih_fw_event_cleanup_queue(struct MPT2SAS_ADAPTER *ioc)
2397 {
2398 struct fw_event_work *fw_event, *next;
2399
2400 if (list_empty(&ioc->fw_event_list) ||
2401 !ioc->firmware_event_thread || in_interrupt())
2402 return;
2403
2404 list_for_each_entry_safe(fw_event, next, &ioc->fw_event_list, list) {
2405 if (cancel_delayed_work(&fw_event->delayed_work)) {
2406 _scsih_fw_event_free(ioc, fw_event);
2407 continue;
2408 }
2409 fw_event->cancel_pending_work = 1;
2410 }
2411 }
2412
2413 /**
2414 * _scsih_ublock_io_device - set the device state to SDEV_RUNNING
2415 * @ioc: per adapter object
2416 * @handle: device handle
2417 *
2418 * During device pull we need to appropiately set the sdev state.
2419 */
2420 static void
2421 _scsih_ublock_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2422 {
2423 struct MPT2SAS_DEVICE *sas_device_priv_data;
2424 struct scsi_device *sdev;
2425
2426 shost_for_each_device(sdev, ioc->shost) {
2427 sas_device_priv_data = sdev->hostdata;
2428 if (!sas_device_priv_data)
2429 continue;
2430 if (!sas_device_priv_data->block)
2431 continue;
2432 if (sas_device_priv_data->sas_target->handle == handle) {
2433 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2434 MPT2SAS_INFO_FMT "SDEV_RUNNING: "
2435 "handle(0x%04x)\n", ioc->name, handle));
2436 sas_device_priv_data->block = 0;
2437 scsi_internal_device_unblock(sdev);
2438 }
2439 }
2440 }
2441
2442 /**
2443 * _scsih_block_io_device - set the device state to SDEV_BLOCK
2444 * @ioc: per adapter object
2445 * @handle: device handle
2446 *
2447 * During device pull we need to appropiately set the sdev state.
2448 */
2449 static void
2450 _scsih_block_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2451 {
2452 struct MPT2SAS_DEVICE *sas_device_priv_data;
2453 struct scsi_device *sdev;
2454
2455 shost_for_each_device(sdev, ioc->shost) {
2456 sas_device_priv_data = sdev->hostdata;
2457 if (!sas_device_priv_data)
2458 continue;
2459 if (sas_device_priv_data->block)
2460 continue;
2461 if (sas_device_priv_data->sas_target->handle == handle) {
2462 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2463 MPT2SAS_INFO_FMT "SDEV_BLOCK: "
2464 "handle(0x%04x)\n", ioc->name, handle));
2465 sas_device_priv_data->block = 1;
2466 scsi_internal_device_block(sdev);
2467 }
2468 }
2469 }
2470
2471 /**
2472 * _scsih_block_io_to_children_attached_to_ex
2473 * @ioc: per adapter object
2474 * @sas_expander: the sas_device object
2475 *
2476 * This routine set sdev state to SDEV_BLOCK for all devices
2477 * attached to this expander. This function called when expander is
2478 * pulled.
2479 */
2480 static void
2481 _scsih_block_io_to_children_attached_to_ex(struct MPT2SAS_ADAPTER *ioc,
2482 struct _sas_node *sas_expander)
2483 {
2484 struct _sas_port *mpt2sas_port;
2485 struct _sas_device *sas_device;
2486 struct _sas_node *expander_sibling;
2487 unsigned long flags;
2488
2489 if (!sas_expander)
2490 return;
2491
2492 list_for_each_entry(mpt2sas_port,
2493 &sas_expander->sas_port_list, port_list) {
2494 if (mpt2sas_port->remote_identify.device_type ==
2495 SAS_END_DEVICE) {
2496 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2497 sas_device =
2498 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
2499 mpt2sas_port->remote_identify.sas_address);
2500 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2501 if (!sas_device)
2502 continue;
2503 _scsih_block_io_device(ioc, sas_device->handle);
2504 }
2505 }
2506
2507 list_for_each_entry(mpt2sas_port,
2508 &sas_expander->sas_port_list, port_list) {
2509
2510 if (mpt2sas_port->remote_identify.device_type ==
2511 MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER ||
2512 mpt2sas_port->remote_identify.device_type ==
2513 MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) {
2514
2515 spin_lock_irqsave(&ioc->sas_node_lock, flags);
2516 expander_sibling =
2517 mpt2sas_scsih_expander_find_by_sas_address(
2518 ioc, mpt2sas_port->remote_identify.sas_address);
2519 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
2520 _scsih_block_io_to_children_attached_to_ex(ioc,
2521 expander_sibling);
2522 }
2523 }
2524 }
2525
2526 /**
2527 * _scsih_block_io_to_children_attached_directly
2528 * @ioc: per adapter object
2529 * @event_data: topology change event data
2530 *
2531 * This routine set sdev state to SDEV_BLOCK for all devices
2532 * direct attached during device pull.
2533 */
2534 static void
2535 _scsih_block_io_to_children_attached_directly(struct MPT2SAS_ADAPTER *ioc,
2536 Mpi2EventDataSasTopologyChangeList_t *event_data)
2537 {
2538 int i;
2539 u16 handle;
2540 u16 reason_code;
2541 u8 phy_number;
2542
2543 for (i = 0; i < event_data->NumEntries; i++) {
2544 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
2545 if (!handle)
2546 continue;
2547 phy_number = event_data->StartPhyNum + i;
2548 reason_code = event_data->PHY[i].PhyStatus &
2549 MPI2_EVENT_SAS_TOPO_RC_MASK;
2550 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING)
2551 _scsih_block_io_device(ioc, handle);
2552 }
2553 }
2554
2555 /**
2556 * _scsih_tm_tr_send - send task management request
2557 * @ioc: per adapter object
2558 * @handle: device handle
2559 * Context: interrupt time.
2560 *
2561 * This code is to initiate the device removal handshake protocal
2562 * with controller firmware. This function will issue target reset
2563 * using high priority request queue. It will send a sas iounit
2564 * controll request (MPI2_SAS_OP_REMOVE_DEVICE) from this completion.
2565 *
2566 * This is designed to send muliple task management request at the same
2567 * time to the fifo. If the fifo is full, we will append the request,
2568 * and process it in a future completion.
2569 */
2570 static void
2571 _scsih_tm_tr_send(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2572 {
2573 Mpi2SCSITaskManagementRequest_t *mpi_request;
2574 u16 smid;
2575 struct _sas_device *sas_device;
2576 unsigned long flags;
2577 struct _tr_list *delayed_tr;
2578
2579 if (ioc->shost_recovery || ioc->remove_host) {
2580 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
2581 "progress!\n", __func__, ioc->name));
2582 return;
2583 }
2584
2585 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2586 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
2587 if (sas_device && sas_device->hidden_raid_component) {
2588 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2589 return;
2590 }
2591 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2592
2593 smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_tr_cb_idx);
2594 if (!smid) {
2595 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
2596 if (!delayed_tr)
2597 return;
2598 INIT_LIST_HEAD(&delayed_tr->list);
2599 delayed_tr->handle = handle;
2600 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
2601 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
2602 "DELAYED:tr:handle(0x%04x), (open)\n",
2603 ioc->name, handle));
2604 return;
2605 }
2606
2607 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "tr_send:handle(0x%04x), "
2608 "(open), smid(%d), cb(%d)\n", ioc->name, handle, smid,
2609 ioc->tm_tr_cb_idx));
2610 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
2611 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
2612 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
2613 mpi_request->DevHandle = cpu_to_le16(handle);
2614 mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
2615 mpt2sas_base_put_smid_hi_priority(ioc, smid);
2616 }
2617
2618
2619
2620 /**
2621 * _scsih_sas_control_complete - completion routine
2622 * @ioc: per adapter object
2623 * @smid: system request message index
2624 * @msix_index: MSIX table index supplied by the OS
2625 * @reply: reply message frame(lower 32bit addr)
2626 * Context: interrupt time.
2627 *
2628 * This is the sas iounit controll completion routine.
2629 * This code is part of the code to initiate the device removal
2630 * handshake protocal with controller firmware.
2631 *
2632 * Return 1 meaning mf should be freed from _base_interrupt
2633 * 0 means the mf is freed from this function.
2634 */
2635 static u8
2636 _scsih_sas_control_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid,
2637 u8 msix_index, u32 reply)
2638 {
2639 Mpi2SasIoUnitControlReply_t *mpi_reply =
2640 mpt2sas_base_get_reply_virt_addr(ioc, reply);
2641
2642 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
2643 "sc_complete:handle(0x%04x), (open) "
2644 "smid(%d), ioc_status(0x%04x), loginfo(0x%08x)\n",
2645 ioc->name, le16_to_cpu(mpi_reply->DevHandle), smid,
2646 le16_to_cpu(mpi_reply->IOCStatus),
2647 le32_to_cpu(mpi_reply->IOCLogInfo)));
2648 return 1;
2649 }
2650
2651 /**
2652 * _scsih_tm_tr_complete -
2653 * @ioc: per adapter object
2654 * @smid: system request message index
2655 * @msix_index: MSIX table index supplied by the OS
2656 * @reply: reply message frame(lower 32bit addr)
2657 * Context: interrupt time.
2658 *
2659 * This is the target reset completion routine.
2660 * This code is part of the code to initiate the device removal
2661 * handshake protocal with controller firmware.
2662 * It will send a sas iounit controll request (MPI2_SAS_OP_REMOVE_DEVICE)
2663 *
2664 * Return 1 meaning mf should be freed from _base_interrupt
2665 * 0 means the mf is freed from this function.
2666 */
2667 static u8
2668 _scsih_tm_tr_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
2669 u32 reply)
2670 {
2671 u16 handle;
2672 Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
2673 Mpi2SCSITaskManagementReply_t *mpi_reply =
2674 mpt2sas_base_get_reply_virt_addr(ioc, reply);
2675 Mpi2SasIoUnitControlRequest_t *mpi_request;
2676 u16 smid_sas_ctrl;
2677 struct _tr_list *delayed_tr;
2678
2679 if (ioc->shost_recovery || ioc->remove_host) {
2680 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
2681 "progress!\n", __func__, ioc->name));
2682 return 1;
2683 }
2684
2685 mpi_request_tm = mpt2sas_base_get_msg_frame(ioc, smid);
2686 handle = le16_to_cpu(mpi_request_tm->DevHandle);
2687 if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
2688 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "spurious interrupt: "
2689 "handle(0x%04x:0x%04x), smid(%d)!!!\n", ioc->name, handle,
2690 le16_to_cpu(mpi_reply->DevHandle), smid));
2691 return 0;
2692 }
2693
2694 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
2695 "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
2696 "loginfo(0x%08x), completed(%d)\n", ioc->name,
2697 handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
2698 le32_to_cpu(mpi_reply->IOCLogInfo),
2699 le32_to_cpu(mpi_reply->TerminationCount)));
2700
2701 smid_sas_ctrl = mpt2sas_base_get_smid(ioc, ioc->tm_sas_control_cb_idx);
2702 if (!smid_sas_ctrl) {
2703 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
2704 ioc->name, __func__);
2705 return 1;
2706 }
2707
2708 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sc_send:handle(0x%04x), "
2709 "(open), smid(%d), cb(%d)\n", ioc->name, handle, smid_sas_ctrl,
2710 ioc->tm_sas_control_cb_idx));
2711 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid_sas_ctrl);
2712 memset(mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
2713 mpi_request->Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
2714 mpi_request->Operation = MPI2_SAS_OP_REMOVE_DEVICE;
2715 mpi_request->DevHandle = mpi_request_tm->DevHandle;
2716 mpt2sas_base_put_smid_default(ioc, smid_sas_ctrl);
2717
2718 if (!list_empty(&ioc->delayed_tr_list)) {
2719 delayed_tr = list_entry(ioc->delayed_tr_list.next,
2720 struct _tr_list, list);
2721 mpt2sas_base_free_smid(ioc, smid);
2722 _scsih_tm_tr_send(ioc, delayed_tr->handle);
2723 list_del(&delayed_tr->list);
2724 kfree(delayed_tr);
2725 return 0; /* tells base_interrupt not to free mf */
2726 }
2727 return 1;
2728 }
2729
2730 /**
2731 * _scsih_check_topo_delete_events - sanity check on topo events
2732 * @ioc: per adapter object
2733 * @event_data: the event data payload
2734 *
2735 * This routine added to better handle cable breaker.
2736 *
2737 * This handles the case where driver recieves multiple expander
2738 * add and delete events in a single shot. When there is a delete event
2739 * the routine will void any pending add events waiting in the event queue.
2740 *
2741 * Return nothing.
2742 */
2743 static void
2744 _scsih_check_topo_delete_events(struct MPT2SAS_ADAPTER *ioc,
2745 Mpi2EventDataSasTopologyChangeList_t *event_data)
2746 {
2747 struct fw_event_work *fw_event;
2748 Mpi2EventDataSasTopologyChangeList_t *local_event_data;
2749 u16 expander_handle;
2750 struct _sas_node *sas_expander;
2751 unsigned long flags;
2752 int i, reason_code;
2753 u16 handle;
2754
2755 for (i = 0 ; i < event_data->NumEntries; i++) {
2756 if (event_data->PHY[i].PhyStatus &
2757 MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT)
2758 continue;
2759 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
2760 if (!handle)
2761 continue;
2762 reason_code = event_data->PHY[i].PhyStatus &
2763 MPI2_EVENT_SAS_TOPO_RC_MASK;
2764 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING)
2765 _scsih_tm_tr_send(ioc, handle);
2766 }
2767
2768 expander_handle = le16_to_cpu(event_data->ExpanderDevHandle);
2769 if (expander_handle < ioc->sas_hba.num_phys) {
2770 _scsih_block_io_to_children_attached_directly(ioc, event_data);
2771 return;
2772 }
2773
2774 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING
2775 || event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING) {
2776 spin_lock_irqsave(&ioc->sas_node_lock, flags);
2777 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
2778 expander_handle);
2779 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
2780 _scsih_block_io_to_children_attached_to_ex(ioc, sas_expander);
2781 } else if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_RESPONDING)
2782 _scsih_block_io_to_children_attached_directly(ioc, event_data);
2783
2784 if (event_data->ExpStatus != MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
2785 return;
2786
2787 /* mark ignore flag for pending events */
2788 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2789 list_for_each_entry(fw_event, &ioc->fw_event_list, list) {
2790 if (fw_event->event != MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
2791 fw_event->ignore)
2792 continue;
2793 local_event_data = fw_event->event_data;
2794 if (local_event_data->ExpStatus ==
2795 MPI2_EVENT_SAS_TOPO_ES_ADDED ||
2796 local_event_data->ExpStatus ==
2797 MPI2_EVENT_SAS_TOPO_ES_RESPONDING) {
2798 if (le16_to_cpu(local_event_data->ExpanderDevHandle) ==
2799 expander_handle) {
2800 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT
2801 "setting ignoring flag\n", ioc->name));
2802 fw_event->ignore = 1;
2803 }
2804 }
2805 }
2806 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2807 }
2808
2809 /**
2810 * _scsih_flush_running_cmds - completing outstanding commands.
2811 * @ioc: per adapter object
2812 *
2813 * The flushing out of all pending scmd commands following host reset,
2814 * where all IO is dropped to the floor.
2815 *
2816 * Return nothing.
2817 */
2818 static void
2819 _scsih_flush_running_cmds(struct MPT2SAS_ADAPTER *ioc)
2820 {
2821 struct scsi_cmnd *scmd;
2822 u16 smid;
2823 u16 count = 0;
2824
2825 for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
2826 scmd = _scsih_scsi_lookup_get(ioc, smid);
2827 if (!scmd)
2828 continue;
2829 count++;
2830 mpt2sas_base_free_smid(ioc, smid);
2831 scsi_dma_unmap(scmd);
2832 scmd->result = DID_RESET << 16;
2833 scmd->scsi_done(scmd);
2834 }
2835 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "completing %d cmds\n",
2836 ioc->name, count));
2837 }
2838
2839 /**
2840 * _scsih_setup_eedp - setup MPI request for EEDP transfer
2841 * @scmd: pointer to scsi command object
2842 * @mpi_request: pointer to the SCSI_IO reqest message frame
2843 *
2844 * Supporting protection 1 and 3.
2845 *
2846 * Returns nothing
2847 */
2848 static void
2849 _scsih_setup_eedp(struct scsi_cmnd *scmd, Mpi2SCSIIORequest_t *mpi_request)
2850 {
2851 u16 eedp_flags;
2852 unsigned char prot_op = scsi_get_prot_op(scmd);
2853 unsigned char prot_type = scsi_get_prot_type(scmd);
2854
2855 if (prot_type == SCSI_PROT_DIF_TYPE0 ||
2856 prot_type == SCSI_PROT_DIF_TYPE2 ||
2857 prot_op == SCSI_PROT_NORMAL)
2858 return;
2859
2860 if (prot_op == SCSI_PROT_READ_STRIP)
2861 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP;
2862 else if (prot_op == SCSI_PROT_WRITE_INSERT)
2863 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_INSERT_OP;
2864 else
2865 return;
2866
2867 switch (prot_type) {
2868 case SCSI_PROT_DIF_TYPE1:
2869
2870 /*
2871 * enable ref/guard checking
2872 * auto increment ref tag
2873 */
2874 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
2875 MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
2876 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
2877 mpi_request->CDB.EEDP32.PrimaryReferenceTag =
2878 cpu_to_be32(scsi_get_lba(scmd));
2879
2880 break;
2881
2882 case SCSI_PROT_DIF_TYPE3:
2883
2884 /*
2885 * enable guard checking
2886 */
2887 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
2888 break;
2889 }
2890 mpi_request->EEDPBlockSize = cpu_to_le32(scmd->device->sector_size);
2891 mpi_request->EEDPFlags = cpu_to_le16(eedp_flags);
2892 }
2893
2894 /**
2895 * _scsih_eedp_error_handling - return sense code for EEDP errors
2896 * @scmd: pointer to scsi command object
2897 * @ioc_status: ioc status
2898 *
2899 * Returns nothing
2900 */
2901 static void
2902 _scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status)
2903 {
2904 u8 ascq;
2905 u8 sk;
2906 u8 host_byte;
2907
2908 switch (ioc_status) {
2909 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
2910 ascq = 0x01;
2911 break;
2912 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
2913 ascq = 0x02;
2914 break;
2915 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
2916 ascq = 0x03;
2917 break;
2918 default:
2919 ascq = 0x00;
2920 break;
2921 }
2922
2923 if (scmd->sc_data_direction == DMA_TO_DEVICE) {
2924 sk = ILLEGAL_REQUEST;
2925 host_byte = DID_ABORT;
2926 } else {
2927 sk = ABORTED_COMMAND;
2928 host_byte = DID_OK;
2929 }
2930
2931 scsi_build_sense_buffer(0, scmd->sense_buffer, sk, 0x10, ascq);
2932 scmd->result = DRIVER_SENSE << 24 | (host_byte << 16) |
2933 SAM_STAT_CHECK_CONDITION;
2934 }
2935
2936 /**
2937 * _scsih_qcmd - main scsi request entry point
2938 * @scmd: pointer to scsi command object
2939 * @done: function pointer to be invoked on completion
2940 *
2941 * The callback index is set inside `ioc->scsi_io_cb_idx`.
2942 *
2943 * Returns 0 on success. If there's a failure, return either:
2944 * SCSI_MLQUEUE_DEVICE_BUSY if the device queue is full, or
2945 * SCSI_MLQUEUE_HOST_BUSY if the entire host queue is full
2946 */
2947 static int
2948 _scsih_qcmd(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
2949 {
2950 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2951 struct MPT2SAS_DEVICE *sas_device_priv_data;
2952 struct MPT2SAS_TARGET *sas_target_priv_data;
2953 Mpi2SCSIIORequest_t *mpi_request;
2954 u32 mpi_control;
2955 u16 smid;
2956
2957 scmd->scsi_done = done;
2958 sas_device_priv_data = scmd->device->hostdata;
2959 if (!sas_device_priv_data) {
2960 scmd->result = DID_NO_CONNECT << 16;
2961 scmd->scsi_done(scmd);
2962 return 0;
2963 }
2964
2965 sas_target_priv_data = sas_device_priv_data->sas_target;
2966 if (!sas_target_priv_data || sas_target_priv_data->handle ==
2967 MPT2SAS_INVALID_DEVICE_HANDLE || sas_target_priv_data->deleted) {
2968 scmd->result = DID_NO_CONNECT << 16;
2969 scmd->scsi_done(scmd);
2970 return 0;
2971 }
2972
2973 /* see if we are busy with task managment stuff */
2974 if (sas_device_priv_data->block || sas_target_priv_data->tm_busy)
2975 return SCSI_MLQUEUE_DEVICE_BUSY;
2976 else if (ioc->shost_recovery || ioc->ioc_link_reset_in_progress)
2977 return SCSI_MLQUEUE_HOST_BUSY;
2978
2979 if (scmd->sc_data_direction == DMA_FROM_DEVICE)
2980 mpi_control = MPI2_SCSIIO_CONTROL_READ;
2981 else if (scmd->sc_data_direction == DMA_TO_DEVICE)
2982 mpi_control = MPI2_SCSIIO_CONTROL_WRITE;
2983 else
2984 mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER;
2985
2986 /* set tags */
2987 if (!(sas_device_priv_data->flags & MPT_DEVICE_FLAGS_INIT)) {
2988 if (scmd->device->tagged_supported) {
2989 if (scmd->device->ordered_tags)
2990 mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ;
2991 else
2992 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
2993 } else
2994 /* MPI Revision I (UNIT = 0xA) - removed MPI2_SCSIIO_CONTROL_UNTAGGED */
2995 /* mpi_control |= MPI2_SCSIIO_CONTROL_UNTAGGED;
2996 */
2997 mpi_control |= (0x500);
2998
2999 } else
3000 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
3001 /* Make sure Device is not raid volume */
3002 if (!_scsih_is_raid(&scmd->device->sdev_gendev) &&
3003 sas_is_tlr_enabled(scmd->device))
3004 mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
3005
3006 smid = mpt2sas_base_get_smid_scsiio(ioc, ioc->scsi_io_cb_idx, scmd);
3007 if (!smid) {
3008 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
3009 ioc->name, __func__);
3010 goto out;
3011 }
3012 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3013 memset(mpi_request, 0, sizeof(Mpi2SCSIIORequest_t));
3014 _scsih_setup_eedp(scmd, mpi_request);
3015 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
3016 if (sas_device_priv_data->sas_target->flags &
3017 MPT_TARGET_FLAGS_RAID_COMPONENT)
3018 mpi_request->Function = MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
3019 else
3020 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
3021 mpi_request->DevHandle =
3022 cpu_to_le16(sas_device_priv_data->sas_target->handle);
3023 mpi_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
3024 mpi_request->Control = cpu_to_le32(mpi_control);
3025 mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len);
3026 mpi_request->MsgFlags = MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR;
3027 mpi_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
3028 mpi_request->SenseBufferLowAddress =
3029 mpt2sas_base_get_sense_buffer_dma(ioc, smid);
3030 mpi_request->SGLOffset0 = offsetof(Mpi2SCSIIORequest_t, SGL) / 4;
3031 mpi_request->SGLFlags = cpu_to_le16(MPI2_SCSIIO_SGLFLAGS_TYPE_MPI +
3032 MPI2_SCSIIO_SGLFLAGS_SYSTEM_ADDR);
3033 mpi_request->VF_ID = 0; /* TODO */
3034 mpi_request->VP_ID = 0;
3035 int_to_scsilun(sas_device_priv_data->lun, (struct scsi_lun *)
3036 mpi_request->LUN);
3037 memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
3038
3039 if (!mpi_request->DataLength) {
3040 mpt2sas_base_build_zero_len_sge(ioc, &mpi_request->SGL);
3041 } else {
3042 if (_scsih_build_scatter_gather(ioc, scmd, smid)) {
3043 mpt2sas_base_free_smid(ioc, smid);
3044 goto out;
3045 }
3046 }
3047
3048 mpt2sas_base_put_smid_scsi_io(ioc, smid,
3049 sas_device_priv_data->sas_target->handle);
3050 return 0;
3051
3052 out:
3053 return SCSI_MLQUEUE_HOST_BUSY;
3054 }
3055
3056 /**
3057 * _scsih_normalize_sense - normalize descriptor and fixed format sense data
3058 * @sense_buffer: sense data returned by target
3059 * @data: normalized skey/asc/ascq
3060 *
3061 * Return nothing.
3062 */
3063 static void
3064 _scsih_normalize_sense(char *sense_buffer, struct sense_info *data)
3065 {
3066 if ((sense_buffer[0] & 0x7F) >= 0x72) {
3067 /* descriptor format */
3068 data->skey = sense_buffer[1] & 0x0F;
3069 data->asc = sense_buffer[2];
3070 data->ascq = sense_buffer[3];
3071 } else {
3072 /* fixed format */
3073 data->skey = sense_buffer[2] & 0x0F;
3074 data->asc = sense_buffer[12];
3075 data->ascq = sense_buffer[13];
3076 }
3077 }
3078
3079 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3080 /**
3081 * _scsih_scsi_ioc_info - translated non-successfull SCSI_IO request
3082 * @ioc: per adapter object
3083 * @scmd: pointer to scsi command object
3084 * @mpi_reply: reply mf payload returned from firmware
3085 *
3086 * scsi_status - SCSI Status code returned from target device
3087 * scsi_state - state info associated with SCSI_IO determined by ioc
3088 * ioc_status - ioc supplied status info
3089 *
3090 * Return nothing.
3091 */
3092 static void
3093 _scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
3094 Mpi2SCSIIOReply_t *mpi_reply, u16 smid)
3095 {
3096 u32 response_info;
3097 u8 *response_bytes;
3098 u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
3099 MPI2_IOCSTATUS_MASK;
3100 u8 scsi_state = mpi_reply->SCSIState;
3101 u8 scsi_status = mpi_reply->SCSIStatus;
3102 char *desc_ioc_state = NULL;
3103 char *desc_scsi_status = NULL;
3104 char *desc_scsi_state = ioc->tmp_string;
3105 u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
3106
3107 if (log_info == 0x31170000)
3108 return;
3109
3110 switch (ioc_status) {
3111 case MPI2_IOCSTATUS_SUCCESS:
3112 desc_ioc_state = "success";
3113 break;
3114 case MPI2_IOCSTATUS_INVALID_FUNCTION:
3115 desc_ioc_state = "invalid function";
3116 break;
3117 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
3118 desc_ioc_state = "scsi recovered error";
3119 break;
3120 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
3121 desc_ioc_state = "scsi invalid dev handle";
3122 break;
3123 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
3124 desc_ioc_state = "scsi device not there";
3125 break;
3126 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
3127 desc_ioc_state = "scsi data overrun";
3128 break;
3129 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
3130 desc_ioc_state = "scsi data underrun";
3131 break;
3132 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
3133 desc_ioc_state = "scsi io data error";
3134 break;
3135 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
3136 desc_ioc_state = "scsi protocol error";
3137 break;
3138 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
3139 desc_ioc_state = "scsi task terminated";
3140 break;
3141 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
3142 desc_ioc_state = "scsi residual mismatch";
3143 break;
3144 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
3145 desc_ioc_state = "scsi task mgmt failed";
3146 break;
3147 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
3148 desc_ioc_state = "scsi ioc terminated";
3149 break;
3150 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
3151 desc_ioc_state = "scsi ext terminated";
3152 break;
3153 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
3154 desc_ioc_state = "eedp guard error";
3155 break;
3156 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
3157 desc_ioc_state = "eedp ref tag error";
3158 break;
3159 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
3160 desc_ioc_state = "eedp app tag error";
3161 break;
3162 default:
3163 desc_ioc_state = "unknown";
3164 break;
3165 }
3166
3167 switch (scsi_status) {
3168 case MPI2_SCSI_STATUS_GOOD:
3169 desc_scsi_status = "good";
3170 break;
3171 case MPI2_SCSI_STATUS_CHECK_CONDITION:
3172 desc_scsi_status = "check condition";
3173 break;
3174 case MPI2_SCSI_STATUS_CONDITION_MET:
3175 desc_scsi_status = "condition met";
3176 break;
3177 case MPI2_SCSI_STATUS_BUSY:
3178 desc_scsi_status = "busy";
3179 break;
3180 case MPI2_SCSI_STATUS_INTERMEDIATE:
3181 desc_scsi_status = "intermediate";
3182 break;
3183 case MPI2_SCSI_STATUS_INTERMEDIATE_CONDMET:
3184 desc_scsi_status = "intermediate condmet";
3185 break;
3186 case MPI2_SCSI_STATUS_RESERVATION_CONFLICT:
3187 desc_scsi_status = "reservation conflict";
3188 break;
3189 case MPI2_SCSI_STATUS_COMMAND_TERMINATED:
3190 desc_scsi_status = "command terminated";
3191 break;
3192 case MPI2_SCSI_STATUS_TASK_SET_FULL:
3193 desc_scsi_status = "task set full";
3194 break;
3195 case MPI2_SCSI_STATUS_ACA_ACTIVE:
3196 desc_scsi_status = "aca active";
3197 break;
3198 case MPI2_SCSI_STATUS_TASK_ABORTED:
3199 desc_scsi_status = "task aborted";
3200 break;
3201 default:
3202 desc_scsi_status = "unknown";
3203 break;
3204 }
3205
3206 desc_scsi_state[0] = '\0';
3207 if (!scsi_state)
3208 desc_scsi_state = " ";
3209 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
3210 strcat(desc_scsi_state, "response info ");
3211 if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
3212 strcat(desc_scsi_state, "state terminated ");
3213 if (scsi_state & MPI2_SCSI_STATE_NO_SCSI_STATUS)
3214 strcat(desc_scsi_state, "no status ");
3215 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_FAILED)
3216 strcat(desc_scsi_state, "autosense failed ");
3217 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID)
3218 strcat(desc_scsi_state, "autosense valid ");
3219
3220 scsi_print_command(scmd);
3221 printk(MPT2SAS_WARN_FMT "\tdev handle(0x%04x), "
3222 "ioc_status(%s)(0x%04x), smid(%d)\n", ioc->name,
3223 le16_to_cpu(mpi_reply->DevHandle), desc_ioc_state,
3224 ioc_status, smid);
3225 printk(MPT2SAS_WARN_FMT "\trequest_len(%d), underflow(%d), "
3226 "resid(%d)\n", ioc->name, scsi_bufflen(scmd), scmd->underflow,
3227 scsi_get_resid(scmd));
3228 printk(MPT2SAS_WARN_FMT "\ttag(%d), transfer_count(%d), "
3229 "sc->result(0x%08x)\n", ioc->name, le16_to_cpu(mpi_reply->TaskTag),
3230 le32_to_cpu(mpi_reply->TransferCount), scmd->result);
3231 printk(MPT2SAS_WARN_FMT "\tscsi_status(%s)(0x%02x), "
3232 "scsi_state(%s)(0x%02x)\n", ioc->name, desc_scsi_status,
3233 scsi_status, desc_scsi_state, scsi_state);
3234
3235 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
3236 struct sense_info data;
3237 _scsih_normalize_sense(scmd->sense_buffer, &data);
3238 printk(MPT2SAS_WARN_FMT "\t[sense_key,asc,ascq]: "
3239 "[0x%02x,0x%02x,0x%02x], count(%d)\n", ioc->name, data.skey,
3240 data.asc, data.ascq, le32_to_cpu(mpi_reply->SenseCount));
3241 }
3242
3243 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
3244 response_info = le32_to_cpu(mpi_reply->ResponseInfo);
3245 response_bytes = (u8 *)&response_info;
3246 _scsih_response_code(ioc, response_bytes[0]);
3247 }
3248 }
3249 #endif
3250
3251 /**
3252 * _scsih_smart_predicted_fault - illuminate Fault LED
3253 * @ioc: per adapter object
3254 * @handle: device handle
3255 *
3256 * Return nothing.
3257 */
3258 static void
3259 _scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3260 {
3261 Mpi2SepReply_t mpi_reply;
3262 Mpi2SepRequest_t mpi_request;
3263 struct scsi_target *starget;
3264 struct MPT2SAS_TARGET *sas_target_priv_data;
3265 Mpi2EventNotificationReply_t *event_reply;
3266 Mpi2EventDataSasDeviceStatusChange_t *event_data;
3267 struct _sas_device *sas_device;
3268 ssize_t sz;
3269 unsigned long flags;
3270
3271 /* only handle non-raid devices */
3272 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3273 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
3274 if (!sas_device) {
3275 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3276 return;
3277 }
3278 starget = sas_device->starget;
3279 sas_target_priv_data = starget->hostdata;
3280
3281 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) ||
3282 ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) {
3283 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3284 return;
3285 }
3286 starget_printk(KERN_WARNING, starget, "predicted fault\n");
3287 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3288
3289 if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM) {
3290 memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t));
3291 mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
3292 mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS;
3293 mpi_request.SlotStatus =
3294 cpu_to_le32(MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
3295 mpi_request.DevHandle = cpu_to_le16(handle);
3296 mpi_request.Flags = MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS;
3297 if ((mpt2sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
3298 &mpi_request)) != 0) {
3299 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3300 ioc->name, __FILE__, __LINE__, __func__);
3301 return;
3302 }
3303
3304 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) {
3305 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3306 "enclosure_processor: ioc_status (0x%04x), "
3307 "loginfo(0x%08x)\n", ioc->name,
3308 le16_to_cpu(mpi_reply.IOCStatus),
3309 le32_to_cpu(mpi_reply.IOCLogInfo)));
3310 return;
3311 }
3312 }
3313
3314 /* insert into event log */
3315 sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
3316 sizeof(Mpi2EventDataSasDeviceStatusChange_t);
3317 event_reply = kzalloc(sz, GFP_KERNEL);
3318 if (!event_reply) {
3319 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3320 ioc->name, __FILE__, __LINE__, __func__);
3321 return;
3322 }
3323
3324 event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
3325 event_reply->Event =
3326 cpu_to_le16(MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
3327 event_reply->MsgLength = sz/4;
3328 event_reply->EventDataLength =
3329 cpu_to_le16(sizeof(Mpi2EventDataSasDeviceStatusChange_t)/4);
3330 event_data = (Mpi2EventDataSasDeviceStatusChange_t *)
3331 event_reply->EventData;
3332 event_data->ReasonCode = MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA;
3333 event_data->ASC = 0x5D;
3334 event_data->DevHandle = cpu_to_le16(handle);
3335 event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address);
3336 mpt2sas_ctl_add_to_event_log(ioc, event_reply);
3337 kfree(event_reply);
3338 }
3339
3340 /**
3341 * _scsih_io_done - scsi request callback
3342 * @ioc: per adapter object
3343 * @smid: system request message index
3344 * @msix_index: MSIX table index supplied by the OS
3345 * @reply: reply message frame(lower 32bit addr)
3346 *
3347 * Callback handler when using _scsih_qcmd.
3348 *
3349 * Return 1 meaning mf should be freed from _base_interrupt
3350 * 0 means the mf is freed from this function.
3351 */
3352 static u8
3353 _scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
3354 {
3355 Mpi2SCSIIORequest_t *mpi_request;
3356 Mpi2SCSIIOReply_t *mpi_reply;
3357 struct scsi_cmnd *scmd;
3358 u16 ioc_status;
3359 u32 xfer_cnt;
3360 u8 scsi_state;
3361 u8 scsi_status;
3362 u32 log_info;
3363 struct MPT2SAS_DEVICE *sas_device_priv_data;
3364 u32 response_code = 0;
3365
3366 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
3367 scmd = _scsih_scsi_lookup_get(ioc, smid);
3368 if (scmd == NULL)
3369 return 1;
3370
3371 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3372
3373 if (mpi_reply == NULL) {
3374 scmd->result = DID_OK << 16;
3375 goto out;
3376 }
3377
3378 sas_device_priv_data = scmd->device->hostdata;
3379 if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
3380 sas_device_priv_data->sas_target->deleted) {
3381 scmd->result = DID_NO_CONNECT << 16;
3382 goto out;
3383 }
3384
3385 /* turning off TLR */
3386 scsi_state = mpi_reply->SCSIState;
3387 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
3388 response_code =
3389 le32_to_cpu(mpi_reply->ResponseInfo) & 0xFF;
3390 if (!sas_device_priv_data->tlr_snoop_check) {
3391 sas_device_priv_data->tlr_snoop_check++;
3392 if (!_scsih_is_raid(&scmd->device->sdev_gendev) &&
3393 sas_is_tlr_enabled(scmd->device) &&
3394 response_code == MPI2_SCSITASKMGMT_RSP_INVALID_FRAME) {
3395 sas_disable_tlr(scmd->device);
3396 sdev_printk(KERN_INFO, scmd->device, "TLR disabled\n");
3397 }
3398 }
3399
3400 xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
3401 scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
3402 ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
3403 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
3404 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
3405 else
3406 log_info = 0;
3407 ioc_status &= MPI2_IOCSTATUS_MASK;
3408 scsi_status = mpi_reply->SCSIStatus;
3409
3410 if (ioc_status == MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
3411 (scsi_status == MPI2_SCSI_STATUS_BUSY ||
3412 scsi_status == MPI2_SCSI_STATUS_RESERVATION_CONFLICT ||
3413 scsi_status == MPI2_SCSI_STATUS_TASK_SET_FULL)) {
3414 ioc_status = MPI2_IOCSTATUS_SUCCESS;
3415 }
3416
3417 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
3418 struct sense_info data;
3419 const void *sense_data = mpt2sas_base_get_sense_buffer(ioc,
3420 smid);
3421 u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
3422 le32_to_cpu(mpi_reply->SenseCount));
3423 memcpy(scmd->sense_buffer, sense_data, sz);
3424 _scsih_normalize_sense(scmd->sense_buffer, &data);
3425 /* failure prediction threshold exceeded */
3426 if (data.asc == 0x5D)
3427 _scsih_smart_predicted_fault(ioc,
3428 le16_to_cpu(mpi_reply->DevHandle));
3429 }
3430
3431 switch (ioc_status) {
3432 case MPI2_IOCSTATUS_BUSY:
3433 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
3434 scmd->result = SAM_STAT_BUSY;
3435 break;
3436
3437 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
3438 scmd->result = DID_NO_CONNECT << 16;
3439 break;
3440
3441 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
3442 if (sas_device_priv_data->block) {
3443 scmd->result = DID_TRANSPORT_DISRUPTED << 16;
3444 goto out;
3445 }
3446 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
3447 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
3448 scmd->result = DID_RESET << 16;
3449 break;
3450
3451 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
3452 if ((xfer_cnt == 0) || (scmd->underflow > xfer_cnt))
3453 scmd->result = DID_SOFT_ERROR << 16;
3454 else
3455 scmd->result = (DID_OK << 16) | scsi_status;
3456 break;
3457
3458 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
3459 scmd->result = (DID_OK << 16) | scsi_status;
3460
3461 if ((scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID))
3462 break;
3463
3464 if (xfer_cnt < scmd->underflow) {
3465 if (scsi_status == SAM_STAT_BUSY)
3466 scmd->result = SAM_STAT_BUSY;
3467 else
3468 scmd->result = DID_SOFT_ERROR << 16;
3469 } else if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
3470 MPI2_SCSI_STATE_NO_SCSI_STATUS))
3471 scmd->result = DID_SOFT_ERROR << 16;
3472 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
3473 scmd->result = DID_RESET << 16;
3474 else if (!xfer_cnt && scmd->cmnd[0] == REPORT_LUNS) {
3475 mpi_reply->SCSIState = MPI2_SCSI_STATE_AUTOSENSE_VALID;
3476 mpi_reply->SCSIStatus = SAM_STAT_CHECK_CONDITION;
3477 scmd->result = (DRIVER_SENSE << 24) |
3478 SAM_STAT_CHECK_CONDITION;
3479 scmd->sense_buffer[0] = 0x70;
3480 scmd->sense_buffer[2] = ILLEGAL_REQUEST;
3481 scmd->sense_buffer[12] = 0x20;
3482 scmd->sense_buffer[13] = 0;
3483 }
3484 break;
3485
3486 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
3487 scsi_set_resid(scmd, 0);
3488 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
3489 case MPI2_IOCSTATUS_SUCCESS:
3490 scmd->result = (DID_OK << 16) | scsi_status;
3491 if (response_code ==
3492 MPI2_SCSITASKMGMT_RSP_INVALID_FRAME ||
3493 (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
3494 MPI2_SCSI_STATE_NO_SCSI_STATUS)))
3495 scmd->result = DID_SOFT_ERROR << 16;
3496 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
3497 scmd->result = DID_RESET << 16;
3498 break;
3499
3500 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
3501 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
3502 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
3503 _scsih_eedp_error_handling(scmd, ioc_status);
3504 break;
3505 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
3506 case MPI2_IOCSTATUS_INVALID_FUNCTION:
3507 case MPI2_IOCSTATUS_INVALID_SGL:
3508 case MPI2_IOCSTATUS_INTERNAL_ERROR:
3509 case MPI2_IOCSTATUS_INVALID_FIELD:
3510 case MPI2_IOCSTATUS_INVALID_STATE:
3511 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
3512 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
3513 default:
3514 scmd->result = DID_SOFT_ERROR << 16;
3515 break;
3516
3517 }
3518
3519 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3520 if (scmd->result && (ioc->logging_level & MPT_DEBUG_REPLY))
3521 _scsih_scsi_ioc_info(ioc , scmd, mpi_reply, smid);
3522 #endif
3523
3524 out:
3525 scsi_dma_unmap(scmd);
3526 scmd->scsi_done(scmd);
3527 return 1;
3528 }
3529
3530 /**
3531 * _scsih_sas_host_refresh - refreshing sas host object contents
3532 * @ioc: per adapter object
3533 * Context: user
3534 *
3535 * During port enable, fw will send topology events for every device. Its
3536 * possible that the handles may change from the previous setting, so this
3537 * code keeping handles updating if changed.
3538 *
3539 * Return nothing.
3540 */
3541 static void
3542 _scsih_sas_host_refresh(struct MPT2SAS_ADAPTER *ioc)
3543 {
3544 u16 sz;
3545 u16 ioc_status;
3546 int i;
3547 Mpi2ConfigReply_t mpi_reply;
3548 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
3549 u16 attached_handle;
3550
3551 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT
3552 "updating handles for sas_host(0x%016llx)\n",
3553 ioc->name, (unsigned long long)ioc->sas_hba.sas_address));
3554
3555 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys
3556 * sizeof(Mpi2SasIOUnit0PhyData_t));
3557 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
3558 if (!sas_iounit_pg0) {
3559 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3560 ioc->name, __FILE__, __LINE__, __func__);
3561 return;
3562 }
3563
3564 if ((mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
3565 sas_iounit_pg0, sz)) != 0)
3566 goto out;
3567 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
3568 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
3569 goto out;
3570 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
3571 if (i == 0)
3572 ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
3573 PhyData[0].ControllerDevHandle);
3574 ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
3575 attached_handle = le16_to_cpu(sas_iounit_pg0->PhyData[i].
3576 AttachedDevHandle);
3577 mpt2sas_transport_update_links(ioc, ioc->sas_hba.sas_address,
3578 attached_handle, i, sas_iounit_pg0->PhyData[i].
3579 NegotiatedLinkRate >> 4);
3580 }
3581 out:
3582 kfree(sas_iounit_pg0);
3583 }
3584
3585 /**
3586 * _scsih_sas_host_add - create sas host object
3587 * @ioc: per adapter object
3588 *
3589 * Creating host side data object, stored in ioc->sas_hba
3590 *
3591 * Return nothing.
3592 */
3593 static void
3594 _scsih_sas_host_add(struct MPT2SAS_ADAPTER *ioc)
3595 {
3596 int i;
3597 Mpi2ConfigReply_t mpi_reply;
3598 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
3599 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
3600 Mpi2SasPhyPage0_t phy_pg0;
3601 Mpi2SasDevicePage0_t sas_device_pg0;
3602 Mpi2SasEnclosurePage0_t enclosure_pg0;
3603 u16 ioc_status;
3604 u16 sz;
3605 u16 device_missing_delay;
3606
3607 mpt2sas_config_get_number_hba_phys(ioc, &ioc->sas_hba.num_phys);
3608 if (!ioc->sas_hba.num_phys) {
3609 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3610 ioc->name, __FILE__, __LINE__, __func__);
3611 return;
3612 }
3613
3614 /* sas_iounit page 0 */
3615 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys *
3616 sizeof(Mpi2SasIOUnit0PhyData_t));
3617 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
3618 if (!sas_iounit_pg0) {
3619 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3620 ioc->name, __FILE__, __LINE__, __func__);
3621 return;
3622 }
3623 if ((mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
3624 sas_iounit_pg0, sz))) {
3625 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3626 ioc->name, __FILE__, __LINE__, __func__);
3627 goto out;
3628 }
3629 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3630 MPI2_IOCSTATUS_MASK;
3631 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3632 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3633 ioc->name, __FILE__, __LINE__, __func__);
3634 goto out;
3635 }
3636
3637 /* sas_iounit page 1 */
3638 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
3639 sizeof(Mpi2SasIOUnit1PhyData_t));
3640 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
3641 if (!sas_iounit_pg1) {
3642 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3643 ioc->name, __FILE__, __LINE__, __func__);
3644 goto out;
3645 }
3646 if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
3647 sas_iounit_pg1, sz))) {
3648 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3649 ioc->name, __FILE__, __LINE__, __func__);
3650 goto out;
3651 }
3652 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3653 MPI2_IOCSTATUS_MASK;
3654 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3655 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3656 ioc->name, __FILE__, __LINE__, __func__);
3657 goto out;
3658 }
3659
3660 ioc->io_missing_delay =
3661 le16_to_cpu(sas_iounit_pg1->IODeviceMissingDelay);
3662 device_missing_delay =
3663 le16_to_cpu(sas_iounit_pg1->ReportDeviceMissingDelay);
3664 if (device_missing_delay & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
3665 ioc->device_missing_delay = (device_missing_delay &
3666 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
3667 else
3668 ioc->device_missing_delay = device_missing_delay &
3669 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
3670
3671 ioc->sas_hba.parent_dev = &ioc->shost->shost_gendev;
3672 ioc->sas_hba.phy = kcalloc(ioc->sas_hba.num_phys,
3673 sizeof(struct _sas_phy), GFP_KERNEL);
3674 if (!ioc->sas_hba.phy) {
3675 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3676 ioc->name, __FILE__, __LINE__, __func__);
3677 goto out;
3678 }
3679 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
3680 if ((mpt2sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
3681 i))) {
3682 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3683 ioc->name, __FILE__, __LINE__, __func__);
3684 goto out;
3685 }
3686 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3687 MPI2_IOCSTATUS_MASK;
3688 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3689 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3690 ioc->name, __FILE__, __LINE__, __func__);
3691 goto out;
3692 }
3693
3694 if (i == 0)
3695 ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
3696 PhyData[0].ControllerDevHandle);
3697 ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
3698 ioc->sas_hba.phy[i].phy_id = i;
3699 mpt2sas_transport_add_host_phy(ioc, &ioc->sas_hba.phy[i],
3700 phy_pg0, ioc->sas_hba.parent_dev);
3701 }
3702 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
3703 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.handle))) {
3704 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3705 ioc->name, __FILE__, __LINE__, __func__);
3706 goto out;
3707 }
3708 ioc->sas_hba.enclosure_handle =
3709 le16_to_cpu(sas_device_pg0.EnclosureHandle);
3710 ioc->sas_hba.sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
3711 printk(MPT2SAS_INFO_FMT "host_add: handle(0x%04x), "
3712 "sas_addr(0x%016llx), phys(%d)\n", ioc->name, ioc->sas_hba.handle,
3713 (unsigned long long) ioc->sas_hba.sas_address,
3714 ioc->sas_hba.num_phys) ;
3715
3716 if (ioc->sas_hba.enclosure_handle) {
3717 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
3718 &enclosure_pg0,
3719 MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
3720 ioc->sas_hba.enclosure_handle))) {
3721 ioc->sas_hba.enclosure_logical_id =
3722 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
3723 }
3724 }
3725
3726 out:
3727 kfree(sas_iounit_pg1);
3728 kfree(sas_iounit_pg0);
3729 }
3730
3731 /**
3732 * _scsih_expander_add - creating expander object
3733 * @ioc: per adapter object
3734 * @handle: expander handle
3735 *
3736 * Creating expander object, stored in ioc->sas_expander_list.
3737 *
3738 * Return 0 for success, else error.
3739 */
3740 static int
3741 _scsih_expander_add(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3742 {
3743 struct _sas_node *sas_expander;
3744 Mpi2ConfigReply_t mpi_reply;
3745 Mpi2ExpanderPage0_t expander_pg0;
3746 Mpi2ExpanderPage1_t expander_pg1;
3747 Mpi2SasEnclosurePage0_t enclosure_pg0;
3748 u32 ioc_status;
3749 u16 parent_handle;
3750 __le64 sas_address, sas_address_parent = 0;
3751 int i;
3752 unsigned long flags;
3753 struct _sas_port *mpt2sas_port = NULL;
3754 int rc = 0;
3755
3756 if (!handle)
3757 return -1;
3758
3759 if (ioc->shost_recovery)
3760 return -1;
3761
3762 if ((mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
3763 MPI2_SAS_EXPAND_PGAD_FORM_HNDL, handle))) {
3764 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3765 ioc->name, __FILE__, __LINE__, __func__);
3766 return -1;
3767 }
3768
3769 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3770 MPI2_IOCSTATUS_MASK;
3771 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3772 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3773 ioc->name, __FILE__, __LINE__, __func__);
3774 return -1;
3775 }
3776
3777 /* handle out of order topology events */
3778 parent_handle = le16_to_cpu(expander_pg0.ParentDevHandle);
3779 if (_scsih_get_sas_address(ioc, parent_handle, &sas_address_parent)
3780 != 0) {
3781 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3782 ioc->name, __FILE__, __LINE__, __func__);
3783 return -1;
3784 }
3785 if (sas_address_parent != ioc->sas_hba.sas_address) {
3786 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3787 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
3788 sas_address_parent);
3789 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3790 if (!sas_expander) {
3791 rc = _scsih_expander_add(ioc, parent_handle);
3792 if (rc != 0)
3793 return rc;
3794 }
3795 }
3796
3797 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3798 sas_address = le64_to_cpu(expander_pg0.SASAddress);
3799 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
3800 sas_address);
3801 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3802
3803 if (sas_expander)
3804 return 0;
3805
3806 sas_expander = kzalloc(sizeof(struct _sas_node),
3807 GFP_KERNEL);
3808 if (!sas_expander) {
3809 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3810 ioc->name, __FILE__, __LINE__, __func__);
3811 return -1;
3812 }
3813
3814 sas_expander->handle = handle;
3815 sas_expander->num_phys = expander_pg0.NumPhys;
3816 sas_expander->sas_address_parent = sas_address_parent;
3817 sas_expander->sas_address = sas_address;
3818
3819 printk(MPT2SAS_INFO_FMT "expander_add: handle(0x%04x),"
3820 " parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n", ioc->name,
3821 handle, parent_handle, (unsigned long long)
3822 sas_expander->sas_address, sas_expander->num_phys);
3823
3824 if (!sas_expander->num_phys)
3825 goto out_fail;
3826 sas_expander->phy = kcalloc(sas_expander->num_phys,
3827 sizeof(struct _sas_phy), GFP_KERNEL);
3828 if (!sas_expander->phy) {
3829 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3830 ioc->name, __FILE__, __LINE__, __func__);
3831 rc = -1;
3832 goto out_fail;
3833 }
3834
3835 INIT_LIST_HEAD(&sas_expander->sas_port_list);
3836 mpt2sas_port = mpt2sas_transport_port_add(ioc, handle,
3837 sas_address_parent);
3838 if (!mpt2sas_port) {
3839 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3840 ioc->name, __FILE__, __LINE__, __func__);
3841 rc = -1;
3842 goto out_fail;
3843 }
3844 sas_expander->parent_dev = &mpt2sas_port->rphy->dev;
3845
3846 for (i = 0 ; i < sas_expander->num_phys ; i++) {
3847 if ((mpt2sas_config_get_expander_pg1(ioc, &mpi_reply,
3848 &expander_pg1, i, handle))) {
3849 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3850 ioc->name, __FILE__, __LINE__, __func__);
3851 rc = -1;
3852 goto out_fail;
3853 }
3854 sas_expander->phy[i].handle = handle;
3855 sas_expander->phy[i].phy_id = i;
3856
3857 if ((mpt2sas_transport_add_expander_phy(ioc,
3858 &sas_expander->phy[i], expander_pg1,
3859 sas_expander->parent_dev))) {
3860 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3861 ioc->name, __FILE__, __LINE__, __func__);
3862 rc = -1;
3863 goto out_fail;
3864 }
3865 }
3866
3867 if (sas_expander->enclosure_handle) {
3868 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
3869 &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
3870 sas_expander->enclosure_handle))) {
3871 sas_expander->enclosure_logical_id =
3872 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
3873 }
3874 }
3875
3876 _scsih_expander_node_add(ioc, sas_expander);
3877 return 0;
3878
3879 out_fail:
3880
3881 if (mpt2sas_port)
3882 mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
3883 sas_address_parent);
3884 kfree(sas_expander);
3885 return rc;
3886 }
3887
3888 /**
3889 * _scsih_done - scsih callback handler.
3890 * @ioc: per adapter object
3891 * @smid: system request message index
3892 * @msix_index: MSIX table index supplied by the OS
3893 * @reply: reply message frame(lower 32bit addr)
3894 *
3895 * Callback handler when sending internal generated message frames.
3896 * The callback index passed is `ioc->scsih_cb_idx`
3897 *
3898 * Return 1 meaning mf should be freed from _base_interrupt
3899 * 0 means the mf is freed from this function.
3900 */
3901 static u8
3902 _scsih_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
3903 {
3904 MPI2DefaultReply_t *mpi_reply;
3905
3906 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
3907 if (ioc->scsih_cmds.status == MPT2_CMD_NOT_USED)
3908 return 1;
3909 if (ioc->scsih_cmds.smid != smid)
3910 return 1;
3911 ioc->scsih_cmds.status |= MPT2_CMD_COMPLETE;
3912 if (mpi_reply) {
3913 memcpy(ioc->scsih_cmds.reply, mpi_reply,
3914 mpi_reply->MsgLength*4);
3915 ioc->scsih_cmds.status |= MPT2_CMD_REPLY_VALID;
3916 }
3917 ioc->scsih_cmds.status &= ~MPT2_CMD_PENDING;
3918 complete(&ioc->scsih_cmds.done);
3919 return 1;
3920 }
3921
3922 /**
3923 * _scsih_expander_remove - removing expander object
3924 * @ioc: per adapter object
3925 * @sas_address: expander sas_address
3926 *
3927 * Return nothing.
3928 */
3929 static void
3930 _scsih_expander_remove(struct MPT2SAS_ADAPTER *ioc, u64 sas_address)
3931 {
3932 struct _sas_node *sas_expander;
3933 unsigned long flags;
3934
3935 if (ioc->shost_recovery)
3936 return;
3937
3938 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3939 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
3940 sas_address);
3941 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3942 _scsih_expander_node_remove(ioc, sas_expander);
3943 }
3944
3945 /**
3946 * _scsih_check_access_status - check access flags
3947 * @ioc: per adapter object
3948 * @sas_address: sas address
3949 * @handle: sas device handle
3950 * @access_flags: errors returned during discovery of the device
3951 *
3952 * Return 0 for success, else failure
3953 */
3954 static u8
3955 _scsih_check_access_status(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
3956 u16 handle, u8 access_status)
3957 {
3958 u8 rc = 1;
3959 char *desc = NULL;
3960
3961 switch (access_status) {
3962 case MPI2_SAS_DEVICE0_ASTATUS_NO_ERRORS:
3963 case MPI2_SAS_DEVICE0_ASTATUS_SATA_NEEDS_INITIALIZATION:
3964 rc = 0;
3965 break;
3966 case MPI2_SAS_DEVICE0_ASTATUS_SATA_CAPABILITY_FAILED:
3967 desc = "sata capability failed";
3968 break;
3969 case MPI2_SAS_DEVICE0_ASTATUS_SATA_AFFILIATION_CONFLICT:
3970 desc = "sata affiliation conflict";
3971 break;
3972 case MPI2_SAS_DEVICE0_ASTATUS_ROUTE_NOT_ADDRESSABLE:
3973 desc = "route not addressable";
3974 break;
3975 case MPI2_SAS_DEVICE0_ASTATUS_SMP_ERROR_NOT_ADDRESSABLE:
3976 desc = "smp error not addressable";
3977 break;
3978 case MPI2_SAS_DEVICE0_ASTATUS_DEVICE_BLOCKED:
3979 desc = "device blocked";
3980 break;
3981 case MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED:
3982 case MPI2_SAS_DEVICE0_ASTATUS_SIF_UNKNOWN:
3983 case MPI2_SAS_DEVICE0_ASTATUS_SIF_AFFILIATION_CONFLICT:
3984 case MPI2_SAS_DEVICE0_ASTATUS_SIF_DIAG:
3985 case MPI2_SAS_DEVICE0_ASTATUS_SIF_IDENTIFICATION:
3986 case MPI2_SAS_DEVICE0_ASTATUS_SIF_CHECK_POWER:
3987 case MPI2_SAS_DEVICE0_ASTATUS_SIF_PIO_SN:
3988 case MPI2_SAS_DEVICE0_ASTATUS_SIF_MDMA_SN:
3989 case MPI2_SAS_DEVICE0_ASTATUS_SIF_UDMA_SN:
3990 case MPI2_SAS_DEVICE0_ASTATUS_SIF_ZONING_VIOLATION:
3991 case MPI2_SAS_DEVICE0_ASTATUS_SIF_NOT_ADDRESSABLE:
3992 case MPI2_SAS_DEVICE0_ASTATUS_SIF_MAX:
3993 desc = "sata initialization failed";
3994 break;
3995 default:
3996 desc = "unknown";
3997 break;
3998 }
3999
4000 if (!rc)
4001 return 0;
4002
4003 printk(MPT2SAS_ERR_FMT "discovery errors(%s): sas_address(0x%016llx), "
4004 "handle(0x%04x)\n", ioc->name, desc,
4005 (unsigned long long)sas_address, handle);
4006 return rc;
4007 }
4008
4009 static void
4010 _scsih_check_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4011 {
4012 Mpi2ConfigReply_t mpi_reply;
4013 Mpi2SasDevicePage0_t sas_device_pg0;
4014 struct _sas_device *sas_device;
4015 u32 ioc_status;
4016 unsigned long flags;
4017 u64 sas_address;
4018 struct scsi_target *starget;
4019 struct MPT2SAS_TARGET *sas_target_priv_data;
4020 u32 device_info;
4021
4022 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
4023 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle)))
4024 return;
4025
4026 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
4027 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
4028 return;
4029
4030 /* check if this is end device */
4031 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
4032 if (!(_scsih_is_end_device(device_info)))
4033 return;
4034
4035 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4036 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4037 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
4038 sas_address);
4039
4040 if (!sas_device) {
4041 printk(MPT2SAS_ERR_FMT "device is not present "
4042 "handle(0x%04x), no sas_device!!!\n", ioc->name, handle);
4043 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4044 return;
4045 }
4046
4047 if (unlikely(sas_device->handle != handle)) {
4048 starget = sas_device->starget;
4049 sas_target_priv_data = starget->hostdata;
4050 starget_printk(KERN_INFO, starget, "handle changed from(0x%04x)"
4051 " to (0x%04x)!!!\n", sas_device->handle, handle);
4052 sas_target_priv_data->handle = handle;
4053 sas_device->handle = handle;
4054 }
4055 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4056
4057 /* check if device is present */
4058 if (!(le16_to_cpu(sas_device_pg0.Flags) &
4059 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
4060 printk(MPT2SAS_ERR_FMT "device is not present "
4061 "handle(0x%04x), flags!!!\n", ioc->name, handle);
4062 return;
4063 }
4064
4065 /* check if there were any issues with discovery */
4066 if (_scsih_check_access_status(ioc, sas_address, handle,
4067 sas_device_pg0.AccessStatus))
4068 return;
4069 _scsih_ublock_io_device(ioc, handle);
4070
4071 }
4072
4073 /**
4074 * _scsih_add_device - creating sas device object
4075 * @ioc: per adapter object
4076 * @handle: sas device handle
4077 * @phy_num: phy number end device attached to
4078 * @is_pd: is this hidden raid component
4079 *
4080 * Creating end device object, stored in ioc->sas_device_list.
4081 *
4082 * Returns 0 for success, non-zero for failure.
4083 */
4084 static int
4085 _scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd)
4086 {
4087 Mpi2ConfigReply_t mpi_reply;
4088 Mpi2SasDevicePage0_t sas_device_pg0;
4089 Mpi2SasEnclosurePage0_t enclosure_pg0;
4090 struct _sas_device *sas_device;
4091 u32 ioc_status;
4092 __le64 sas_address;
4093 u32 device_info;
4094 unsigned long flags;
4095
4096 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
4097 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
4098 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4099 ioc->name, __FILE__, __LINE__, __func__);
4100 return -1;
4101 }
4102
4103 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4104 MPI2_IOCSTATUS_MASK;
4105 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4106 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4107 ioc->name, __FILE__, __LINE__, __func__);
4108 return -1;
4109 }
4110
4111 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4112
4113 /* check if device is present */
4114 if (!(le16_to_cpu(sas_device_pg0.Flags) &
4115 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
4116 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4117 ioc->name, __FILE__, __LINE__, __func__);
4118 printk(MPT2SAS_ERR_FMT "Flags = 0x%04x\n",
4119 ioc->name, le16_to_cpu(sas_device_pg0.Flags));
4120 return -1;
4121 }
4122
4123 /* check if there were any issues with discovery */
4124 if (_scsih_check_access_status(ioc, sas_address, handle,
4125 sas_device_pg0.AccessStatus))
4126 return -1;
4127
4128 /* check if this is end device */
4129 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
4130 if (!(_scsih_is_end_device(device_info))) {
4131 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4132 ioc->name, __FILE__, __LINE__, __func__);
4133 return -1;
4134 }
4135
4136
4137 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4138 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
4139 sas_address);
4140 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4141
4142 if (sas_device)
4143 return 0;
4144
4145 sas_device = kzalloc(sizeof(struct _sas_device),
4146 GFP_KERNEL);
4147 if (!sas_device) {
4148 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4149 ioc->name, __FILE__, __LINE__, __func__);
4150 return -1;
4151 }
4152
4153 sas_device->handle = handle;
4154 if (_scsih_get_sas_address(ioc, le16_to_cpu
4155 (sas_device_pg0.ParentDevHandle),
4156 &sas_device->sas_address_parent) != 0)
4157 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4158 ioc->name, __FILE__, __LINE__, __func__);
4159 sas_device->enclosure_handle =
4160 le16_to_cpu(sas_device_pg0.EnclosureHandle);
4161 sas_device->slot =
4162 le16_to_cpu(sas_device_pg0.Slot);
4163 sas_device->device_info = device_info;
4164 sas_device->sas_address = sas_address;
4165 sas_device->hidden_raid_component = is_pd;
4166
4167 /* get enclosure_logical_id */
4168 if (sas_device->enclosure_handle && !(mpt2sas_config_get_enclosure_pg0(
4169 ioc, &mpi_reply, &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
4170 sas_device->enclosure_handle)))
4171 sas_device->enclosure_logical_id =
4172 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
4173
4174 /* get device name */
4175 sas_device->device_name = le64_to_cpu(sas_device_pg0.DeviceName);
4176
4177 if (ioc->wait_for_port_enable_to_complete)
4178 _scsih_sas_device_init_add(ioc, sas_device);
4179 else
4180 _scsih_sas_device_add(ioc, sas_device);
4181
4182 return 0;
4183 }
4184
4185 /**
4186 * _scsih_remove_pd_device - removing sas device pd object
4187 * @ioc: per adapter object
4188 * @sas_device_delete: the sas_device object
4189 *
4190 * For hidden raid components, we do driver-fw handshake from
4191 * hotplug work threads.
4192 * Return nothing.
4193 */
4194 static void
4195 _scsih_remove_pd_device(struct MPT2SAS_ADAPTER *ioc, struct _sas_device
4196 sas_device)
4197 {
4198 Mpi2SasIoUnitControlReply_t mpi_reply;
4199 Mpi2SasIoUnitControlRequest_t mpi_request;
4200 u16 vol_handle, handle;
4201
4202 handle = sas_device.handle;
4203 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter: handle(0x%04x),"
4204 " sas_addr(0x%016llx)\n", ioc->name, __func__, handle,
4205 (unsigned long long) sas_device.sas_address));
4206
4207 vol_handle = sas_device.volume_handle;
4208 if (!vol_handle)
4209 return;
4210 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "issue target reset: "
4211 "handle(0x%04x)\n", ioc->name, vol_handle));
4212 mpt2sas_scsih_issue_tm(ioc, vol_handle, 0, 0, 0,
4213 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 30, NULL);
4214 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "issue target reset "
4215 "done: handle(0x%04x)\n", ioc->name, vol_handle));
4216 if (ioc->shost_recovery)
4217 return;
4218
4219 /* SAS_IO_UNIT_CNTR - send REMOVE_DEVICE */
4220 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sas_iounit: handle"
4221 "(0x%04x)\n", ioc->name, handle));
4222 memset(&mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
4223 mpi_request.Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
4224 mpi_request.Operation = MPI2_SAS_OP_REMOVE_DEVICE;
4225 mpi_request.DevHandle = cpu_to_le16(handle);
4226 if ((mpt2sas_base_sas_iounit_control(ioc, &mpi_reply,
4227 &mpi_request)) != 0)
4228 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4229 ioc->name, __FILE__, __LINE__, __func__);
4230
4231 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sas_iounit: ioc_status"
4232 "(0x%04x), loginfo(0x%08x)\n", ioc->name,
4233 le16_to_cpu(mpi_reply.IOCStatus),
4234 le32_to_cpu(mpi_reply.IOCLogInfo)));
4235
4236 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit: handle(0x%04x),"
4237 " sas_addr(0x%016llx)\n", ioc->name, __func__, handle,
4238 (unsigned long long) sas_device.sas_address));
4239 }
4240
4241 /**
4242 * _scsih_remove_device - removing sas device object
4243 * @ioc: per adapter object
4244 * @sas_device_delete: the sas_device object
4245 *
4246 * Return nothing.
4247 */
4248 static void
4249 _scsih_remove_device(struct MPT2SAS_ADAPTER *ioc,
4250 struct _sas_device *sas_device)
4251 {
4252 struct _sas_device sas_device_backup;
4253 struct MPT2SAS_TARGET *sas_target_priv_data;
4254
4255 if (!sas_device)
4256 return;
4257
4258 memcpy(&sas_device_backup, sas_device, sizeof(struct _sas_device));
4259 _scsih_sas_device_remove(ioc, sas_device);
4260
4261 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter: "
4262 "handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
4263 sas_device_backup.handle, (unsigned long long)
4264 sas_device_backup.sas_address));
4265
4266 if (sas_device_backup.starget && sas_device_backup.starget->hostdata) {
4267 sas_target_priv_data = sas_device_backup.starget->hostdata;
4268 sas_target_priv_data->deleted = 1;
4269 }
4270
4271 if (sas_device_backup.hidden_raid_component)
4272 _scsih_remove_pd_device(ioc, sas_device_backup);
4273
4274 _scsih_ublock_io_device(ioc, sas_device_backup.handle);
4275
4276 mpt2sas_transport_port_remove(ioc, sas_device_backup.sas_address,
4277 sas_device_backup.sas_address_parent);
4278
4279 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), sas_addr"
4280 "(0x%016llx)\n", ioc->name, sas_device_backup.handle,
4281 (unsigned long long) sas_device_backup.sas_address);
4282
4283 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit: "
4284 "handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
4285 sas_device_backup.handle, (unsigned long long)
4286 sas_device_backup.sas_address));
4287 }
4288
4289 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4290 /**
4291 * _scsih_sas_topology_change_event_debug - debug for topology event
4292 * @ioc: per adapter object
4293 * @event_data: event data payload
4294 * Context: user.
4295 */
4296 static void
4297 _scsih_sas_topology_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
4298 Mpi2EventDataSasTopologyChangeList_t *event_data)
4299 {
4300 int i;
4301 u16 handle;
4302 u16 reason_code;
4303 u8 phy_number;
4304 char *status_str = NULL;
4305 u8 link_rate, prev_link_rate;
4306
4307 switch (event_data->ExpStatus) {
4308 case MPI2_EVENT_SAS_TOPO_ES_ADDED:
4309 status_str = "add";
4310 break;
4311 case MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING:
4312 status_str = "remove";
4313 break;
4314 case MPI2_EVENT_SAS_TOPO_ES_RESPONDING:
4315 case 0:
4316 status_str = "responding";
4317 break;
4318 case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
4319 status_str = "remove delay";
4320 break;
4321 default:
4322 status_str = "unknown status";
4323 break;
4324 }
4325 printk(MPT2SAS_DEBUG_FMT "sas topology change: (%s)\n",
4326 ioc->name, status_str);
4327 printk(KERN_DEBUG "\thandle(0x%04x), enclosure_handle(0x%04x) "
4328 "start_phy(%02d), count(%d)\n",
4329 le16_to_cpu(event_data->ExpanderDevHandle),
4330 le16_to_cpu(event_data->EnclosureHandle),
4331 event_data->StartPhyNum, event_data->NumEntries);
4332 for (i = 0; i < event_data->NumEntries; i++) {
4333 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
4334 if (!handle)
4335 continue;
4336 phy_number = event_data->StartPhyNum + i;
4337 reason_code = event_data->PHY[i].PhyStatus &
4338 MPI2_EVENT_SAS_TOPO_RC_MASK;
4339 switch (reason_code) {
4340 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
4341 status_str = "target add";
4342 break;
4343 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
4344 status_str = "target remove";
4345 break;
4346 case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
4347 status_str = "delay target remove";
4348 break;
4349 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
4350 status_str = "link rate change";
4351 break;
4352 case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
4353 status_str = "target responding";
4354 break;
4355 default:
4356 status_str = "unknown";
4357 break;
4358 }
4359 link_rate = event_data->PHY[i].LinkRate >> 4;
4360 prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
4361 printk(KERN_DEBUG "\tphy(%02d), attached_handle(0x%04x): %s:"
4362 " link rate: new(0x%02x), old(0x%02x)\n", phy_number,
4363 handle, status_str, link_rate, prev_link_rate);
4364
4365 }
4366 }
4367 #endif
4368
4369 /**
4370 * _scsih_sas_topology_change_event - handle topology changes
4371 * @ioc: per adapter object
4372 * @fw_event: The fw_event_work object
4373 * Context: user.
4374 *
4375 */
4376 static void
4377 _scsih_sas_topology_change_event(struct MPT2SAS_ADAPTER *ioc,
4378 struct fw_event_work *fw_event)
4379 {
4380 int i;
4381 u16 parent_handle, handle;
4382 u16 reason_code;
4383 u8 phy_number;
4384 struct _sas_node *sas_expander;
4385 struct _sas_device *sas_device;
4386 u64 sas_address;
4387 unsigned long flags;
4388 u8 link_rate, prev_link_rate;
4389 Mpi2EventDataSasTopologyChangeList_t *event_data = fw_event->event_data;
4390
4391 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4392 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4393 _scsih_sas_topology_change_event_debug(ioc, event_data);
4394 #endif
4395
4396 if (ioc->shost_recovery || ioc->remove_host)
4397 return;
4398
4399 if (!ioc->sas_hba.num_phys)
4400 _scsih_sas_host_add(ioc);
4401 else
4402 _scsih_sas_host_refresh(ioc);
4403
4404 if (fw_event->ignore) {
4405 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "ignoring expander "
4406 "event\n", ioc->name));
4407 return;
4408 }
4409
4410 parent_handle = le16_to_cpu(event_data->ExpanderDevHandle);
4411
4412 /* handle expander add */
4413 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_ADDED)
4414 if (_scsih_expander_add(ioc, parent_handle) != 0)
4415 return;
4416
4417 spin_lock_irqsave(&ioc->sas_node_lock, flags);
4418 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
4419 parent_handle);
4420 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4421 if (sas_expander)
4422 sas_address = sas_expander->sas_address;
4423 else if (parent_handle < ioc->sas_hba.num_phys)
4424 sas_address = ioc->sas_hba.sas_address;
4425 else
4426 return;
4427
4428 /* handle siblings events */
4429 for (i = 0; i < event_data->NumEntries; i++) {
4430 if (fw_event->ignore) {
4431 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "ignoring "
4432 "expander event\n", ioc->name));
4433 return;
4434 }
4435 if (ioc->shost_recovery || ioc->remove_host)
4436 return;
4437 phy_number = event_data->StartPhyNum + i;
4438 reason_code = event_data->PHY[i].PhyStatus &
4439 MPI2_EVENT_SAS_TOPO_RC_MASK;
4440 if ((event_data->PHY[i].PhyStatus &
4441 MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT) && (reason_code !=
4442 MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING))
4443 continue;
4444 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
4445 if (!handle)
4446 continue;
4447 link_rate = event_data->PHY[i].LinkRate >> 4;
4448 prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
4449 switch (reason_code) {
4450 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
4451
4452 if (link_rate == prev_link_rate)
4453 break;
4454
4455 mpt2sas_transport_update_links(ioc, sas_address,
4456 handle, phy_number, link_rate);
4457
4458 if (link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
4459 break;
4460
4461 _scsih_check_device(ioc, handle);
4462 break;
4463 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
4464
4465 mpt2sas_transport_update_links(ioc, sas_address,
4466 handle, phy_number, link_rate);
4467
4468 _scsih_add_device(ioc, handle, phy_number, 0);
4469 break;
4470 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
4471
4472 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4473 sas_device = _scsih_sas_device_find_by_handle(ioc,
4474 handle);
4475 if (!sas_device) {
4476 spin_unlock_irqrestore(&ioc->sas_device_lock,
4477 flags);
4478 break;
4479 }
4480 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4481 _scsih_remove_device(ioc, sas_device);
4482 break;
4483 }
4484 }
4485
4486 /* handle expander removal */
4487 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING &&
4488 sas_expander)
4489 _scsih_expander_remove(ioc, sas_address);
4490
4491 }
4492
4493 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4494 /**
4495 * _scsih_sas_device_status_change_event_debug - debug for device event
4496 * @event_data: event data payload
4497 * Context: user.
4498 *
4499 * Return nothing.
4500 */
4501 static void
4502 _scsih_sas_device_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
4503 Mpi2EventDataSasDeviceStatusChange_t *event_data)
4504 {
4505 char *reason_str = NULL;
4506
4507 switch (event_data->ReasonCode) {
4508 case MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA:
4509 reason_str = "smart data";
4510 break;
4511 case MPI2_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED:
4512 reason_str = "unsupported device discovered";
4513 break;
4514 case MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
4515 reason_str = "internal device reset";
4516 break;
4517 case MPI2_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL:
4518 reason_str = "internal task abort";
4519 break;
4520 case MPI2_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL:
4521 reason_str = "internal task abort set";
4522 break;
4523 case MPI2_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL:
4524 reason_str = "internal clear task set";
4525 break;
4526 case MPI2_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL:
4527 reason_str = "internal query task";
4528 break;
4529 case MPI2_EVENT_SAS_DEV_STAT_RC_SATA_INIT_FAILURE:
4530 reason_str = "sata init failure";
4531 break;
4532 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET:
4533 reason_str = "internal device reset complete";
4534 break;
4535 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_TASK_ABORT_INTERNAL:
4536 reason_str = "internal task abort complete";
4537 break;
4538 case MPI2_EVENT_SAS_DEV_STAT_RC_ASYNC_NOTIFICATION:
4539 reason_str = "internal async notification";
4540 break;
4541 case MPI2_EVENT_SAS_DEV_STAT_RC_EXPANDER_REDUCED_FUNCTIONALITY:
4542 reason_str = "expander reduced functionality";
4543 break;
4544 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_EXPANDER_REDUCED_FUNCTIONALITY:
4545 reason_str = "expander reduced functionality complete";
4546 break;
4547 default:
4548 reason_str = "unknown reason";
4549 break;
4550 }
4551 printk(MPT2SAS_DEBUG_FMT "device status change: (%s)\n"
4552 "\thandle(0x%04x), sas address(0x%016llx)", ioc->name,
4553 reason_str, le16_to_cpu(event_data->DevHandle),
4554 (unsigned long long)le64_to_cpu(event_data->SASAddress));
4555 if (event_data->ReasonCode == MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA)
4556 printk(MPT2SAS_DEBUG_FMT ", ASC(0x%x), ASCQ(0x%x)\n", ioc->name,
4557 event_data->ASC, event_data->ASCQ);
4558 printk(KERN_INFO "\n");
4559 }
4560 #endif
4561
4562 /**
4563 * _scsih_sas_device_status_change_event - handle device status change
4564 * @ioc: per adapter object
4565 * @fw_event: The fw_event_work object
4566 * Context: user.
4567 *
4568 * Return nothing.
4569 */
4570 static void
4571 _scsih_sas_device_status_change_event(struct MPT2SAS_ADAPTER *ioc,
4572 struct fw_event_work *fw_event)
4573 {
4574 struct MPT2SAS_TARGET *target_priv_data;
4575 struct _sas_device *sas_device;
4576 __le64 sas_address;
4577 unsigned long flags;
4578 Mpi2EventDataSasDeviceStatusChange_t *event_data =
4579 fw_event->event_data;
4580
4581 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4582 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4583 _scsih_sas_device_status_change_event_debug(ioc,
4584 event_data);
4585 #endif
4586
4587 if (event_data->ReasonCode !=
4588 MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET &&
4589 event_data->ReasonCode !=
4590 MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET)
4591 return;
4592
4593 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4594 sas_address = le64_to_cpu(event_data->SASAddress);
4595 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
4596 sas_address);
4597 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4598
4599 if (!sas_device || !sas_device->starget)
4600 return;
4601
4602 target_priv_data = sas_device->starget->hostdata;
4603 if (!target_priv_data)
4604 return;
4605
4606 if (event_data->ReasonCode ==
4607 MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET)
4608 target_priv_data->tm_busy = 1;
4609 else
4610 target_priv_data->tm_busy = 0;
4611 }
4612
4613 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4614 /**
4615 * _scsih_sas_enclosure_dev_status_change_event_debug - debug for enclosure event
4616 * @ioc: per adapter object
4617 * @event_data: event data payload
4618 * Context: user.
4619 *
4620 * Return nothing.
4621 */
4622 static void
4623 _scsih_sas_enclosure_dev_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
4624 Mpi2EventDataSasEnclDevStatusChange_t *event_data)
4625 {
4626 char *reason_str = NULL;
4627
4628 switch (event_data->ReasonCode) {
4629 case MPI2_EVENT_SAS_ENCL_RC_ADDED:
4630 reason_str = "enclosure add";
4631 break;
4632 case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING:
4633 reason_str = "enclosure remove";
4634 break;
4635 default:
4636 reason_str = "unknown reason";
4637 break;
4638 }
4639
4640 printk(MPT2SAS_DEBUG_FMT "enclosure status change: (%s)\n"
4641 "\thandle(0x%04x), enclosure logical id(0x%016llx)"
4642 " number slots(%d)\n", ioc->name, reason_str,
4643 le16_to_cpu(event_data->EnclosureHandle),
4644 (unsigned long long)le64_to_cpu(event_data->EnclosureLogicalID),
4645 le16_to_cpu(event_data->StartSlot));
4646 }
4647 #endif
4648
4649 /**
4650 * _scsih_sas_enclosure_dev_status_change_event - handle enclosure events
4651 * @ioc: per adapter object
4652 * @fw_event: The fw_event_work object
4653 * Context: user.
4654 *
4655 * Return nothing.
4656 */
4657 static void
4658 _scsih_sas_enclosure_dev_status_change_event(struct MPT2SAS_ADAPTER *ioc,
4659 struct fw_event_work *fw_event)
4660 {
4661 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4662 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4663 _scsih_sas_enclosure_dev_status_change_event_debug(ioc,
4664 fw_event->event_data);
4665 #endif
4666 }
4667
4668 /**
4669 * _scsih_sas_broadcast_primative_event - handle broadcast events
4670 * @ioc: per adapter object
4671 * @fw_event: The fw_event_work object
4672 * Context: user.
4673 *
4674 * Return nothing.
4675 */
4676 static void
4677 _scsih_sas_broadcast_primative_event(struct MPT2SAS_ADAPTER *ioc,
4678 struct fw_event_work *fw_event)
4679 {
4680 struct scsi_cmnd *scmd;
4681 u16 smid, handle;
4682 u32 lun;
4683 struct MPT2SAS_DEVICE *sas_device_priv_data;
4684 u32 termination_count;
4685 u32 query_count;
4686 Mpi2SCSITaskManagementReply_t *mpi_reply;
4687 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4688 Mpi2EventDataSasBroadcastPrimitive_t *event_data = fw_event->event_data;
4689 #endif
4690 u16 ioc_status;
4691 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "broadcast primative: "
4692 "phy number(%d), width(%d)\n", ioc->name, event_data->PhyNum,
4693 event_data->PortWidth));
4694 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name,
4695 __func__));
4696
4697 termination_count = 0;
4698 query_count = 0;
4699 mpi_reply = ioc->tm_cmds.reply;
4700 for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
4701 scmd = _scsih_scsi_lookup_get(ioc, smid);
4702 if (!scmd)
4703 continue;
4704 sas_device_priv_data = scmd->device->hostdata;
4705 if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
4706 continue;
4707 /* skip hidden raid components */
4708 if (sas_device_priv_data->sas_target->flags &
4709 MPT_TARGET_FLAGS_RAID_COMPONENT)
4710 continue;
4711 /* skip volumes */
4712 if (sas_device_priv_data->sas_target->flags &
4713 MPT_TARGET_FLAGS_VOLUME)
4714 continue;
4715
4716 handle = sas_device_priv_data->sas_target->handle;
4717 lun = sas_device_priv_data->lun;
4718 query_count++;
4719
4720 mpt2sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
4721 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30, NULL);
4722 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
4723 ioc_status = le16_to_cpu(mpi_reply->IOCStatus)
4724 & MPI2_IOCSTATUS_MASK;
4725 if ((ioc_status == MPI2_IOCSTATUS_SUCCESS) &&
4726 (mpi_reply->ResponseCode ==
4727 MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
4728 mpi_reply->ResponseCode ==
4729 MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC))
4730 continue;
4731
4732 mpt2sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
4733 MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET, 0, 30, NULL);
4734 termination_count += le32_to_cpu(mpi_reply->TerminationCount);
4735 }
4736 ioc->broadcast_aen_busy = 0;
4737
4738 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT
4739 "%s - exit, query_count = %d termination_count = %d\n",
4740 ioc->name, __func__, query_count, termination_count));
4741 }
4742
4743 /**
4744 * _scsih_sas_discovery_event - handle discovery events
4745 * @ioc: per adapter object
4746 * @fw_event: The fw_event_work object
4747 * Context: user.
4748 *
4749 * Return nothing.
4750 */
4751 static void
4752 _scsih_sas_discovery_event(struct MPT2SAS_ADAPTER *ioc,
4753 struct fw_event_work *fw_event)
4754 {
4755 Mpi2EventDataSasDiscovery_t *event_data = fw_event->event_data;
4756
4757 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4758 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) {
4759 printk(MPT2SAS_DEBUG_FMT "discovery event: (%s)", ioc->name,
4760 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
4761 "start" : "stop");
4762 if (event_data->DiscoveryStatus)
4763 printk("discovery_status(0x%08x)",
4764 le32_to_cpu(event_data->DiscoveryStatus));
4765 printk("\n");
4766 }
4767 #endif
4768
4769 if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED &&
4770 !ioc->sas_hba.num_phys)
4771 _scsih_sas_host_add(ioc);
4772 }
4773
4774 /**
4775 * _scsih_reprobe_lun - reprobing lun
4776 * @sdev: scsi device struct
4777 * @no_uld_attach: sdev->no_uld_attach flag setting
4778 *
4779 **/
4780 static void
4781 _scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach)
4782 {
4783 int rc;
4784
4785 sdev->no_uld_attach = no_uld_attach ? 1 : 0;
4786 sdev_printk(KERN_INFO, sdev, "%s raid component\n",
4787 sdev->no_uld_attach ? "hidding" : "exposing");
4788 rc = scsi_device_reprobe(sdev);
4789 }
4790
4791 /**
4792 * _scsih_reprobe_target - reprobing target
4793 * @starget: scsi target struct
4794 * @no_uld_attach: sdev->no_uld_attach flag setting
4795 *
4796 * Note: no_uld_attach flag determines whether the disk device is attached
4797 * to block layer. A value of `1` means to not attach.
4798 **/
4799 static void
4800 _scsih_reprobe_target(struct scsi_target *starget, int no_uld_attach)
4801 {
4802 struct MPT2SAS_TARGET *sas_target_priv_data = starget->hostdata;
4803
4804 if (no_uld_attach)
4805 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_RAID_COMPONENT;
4806 else
4807 sas_target_priv_data->flags &= ~MPT_TARGET_FLAGS_RAID_COMPONENT;
4808
4809 starget_for_each_device(starget, no_uld_attach ? (void *)1 : NULL,
4810 _scsih_reprobe_lun);
4811 }
4812 /**
4813 * _scsih_sas_volume_add - add new volume
4814 * @ioc: per adapter object
4815 * @element: IR config element data
4816 * Context: user.
4817 *
4818 * Return nothing.
4819 */
4820 static void
4821 _scsih_sas_volume_add(struct MPT2SAS_ADAPTER *ioc,
4822 Mpi2EventIrConfigElement_t *element)
4823 {
4824 struct _raid_device *raid_device;
4825 unsigned long flags;
4826 u64 wwid;
4827 u16 handle = le16_to_cpu(element->VolDevHandle);
4828 int rc;
4829
4830 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
4831 if (!wwid) {
4832 printk(MPT2SAS_ERR_FMT
4833 "failure at %s:%d/%s()!\n", ioc->name,
4834 __FILE__, __LINE__, __func__);
4835 return;
4836 }
4837
4838 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4839 raid_device = _scsih_raid_device_find_by_wwid(ioc, wwid);
4840 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4841
4842 if (raid_device)
4843 return;
4844
4845 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
4846 if (!raid_device) {
4847 printk(MPT2SAS_ERR_FMT
4848 "failure at %s:%d/%s()!\n", ioc->name,
4849 __FILE__, __LINE__, __func__);
4850 return;
4851 }
4852
4853 raid_device->id = ioc->sas_id++;
4854 raid_device->channel = RAID_CHANNEL;
4855 raid_device->handle = handle;
4856 raid_device->wwid = wwid;
4857 _scsih_raid_device_add(ioc, raid_device);
4858 if (!ioc->wait_for_port_enable_to_complete) {
4859 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
4860 raid_device->id, 0);
4861 if (rc)
4862 _scsih_raid_device_remove(ioc, raid_device);
4863 } else
4864 _scsih_determine_boot_device(ioc, raid_device, 1);
4865 }
4866
4867 /**
4868 * _scsih_sas_volume_delete - delete volume
4869 * @ioc: per adapter object
4870 * @element: IR config element data
4871 * Context: user.
4872 *
4873 * Return nothing.
4874 */
4875 static void
4876 _scsih_sas_volume_delete(struct MPT2SAS_ADAPTER *ioc,
4877 Mpi2EventIrConfigElement_t *element)
4878 {
4879 struct _raid_device *raid_device;
4880 u16 handle = le16_to_cpu(element->VolDevHandle);
4881 unsigned long flags;
4882 struct MPT2SAS_TARGET *sas_target_priv_data;
4883
4884 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4885 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
4886 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4887 if (!raid_device)
4888 return;
4889 if (raid_device->starget) {
4890 sas_target_priv_data = raid_device->starget->hostdata;
4891 sas_target_priv_data->deleted = 1;
4892 scsi_remove_target(&raid_device->starget->dev);
4893 }
4894 _scsih_raid_device_remove(ioc, raid_device);
4895 }
4896
4897 /**
4898 * _scsih_sas_pd_expose - expose pd component to /dev/sdX
4899 * @ioc: per adapter object
4900 * @element: IR config element data
4901 * Context: user.
4902 *
4903 * Return nothing.
4904 */
4905 static void
4906 _scsih_sas_pd_expose(struct MPT2SAS_ADAPTER *ioc,
4907 Mpi2EventIrConfigElement_t *element)
4908 {
4909 struct _sas_device *sas_device;
4910 unsigned long flags;
4911 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4912
4913 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4914 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4915 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4916 if (!sas_device)
4917 return;
4918
4919 /* exposing raid component */
4920 sas_device->volume_handle = 0;
4921 sas_device->volume_wwid = 0;
4922 sas_device->hidden_raid_component = 0;
4923 _scsih_reprobe_target(sas_device->starget, 0);
4924 }
4925
4926 /**
4927 * _scsih_sas_pd_hide - hide pd component from /dev/sdX
4928 * @ioc: per adapter object
4929 * @element: IR config element data
4930 * Context: user.
4931 *
4932 * Return nothing.
4933 */
4934 static void
4935 _scsih_sas_pd_hide(struct MPT2SAS_ADAPTER *ioc,
4936 Mpi2EventIrConfigElement_t *element)
4937 {
4938 struct _sas_device *sas_device;
4939 unsigned long flags;
4940 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4941
4942 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4943 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4944 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4945 if (!sas_device)
4946 return;
4947
4948 /* hiding raid component */
4949 mpt2sas_config_get_volume_handle(ioc, handle,
4950 &sas_device->volume_handle);
4951 mpt2sas_config_get_volume_wwid(ioc, sas_device->volume_handle,
4952 &sas_device->volume_wwid);
4953 sas_device->hidden_raid_component = 1;
4954 _scsih_reprobe_target(sas_device->starget, 1);
4955 }
4956
4957 /**
4958 * _scsih_sas_pd_delete - delete pd component
4959 * @ioc: per adapter object
4960 * @element: IR config element data
4961 * Context: user.
4962 *
4963 * Return nothing.
4964 */
4965 static void
4966 _scsih_sas_pd_delete(struct MPT2SAS_ADAPTER *ioc,
4967 Mpi2EventIrConfigElement_t *element)
4968 {
4969 struct _sas_device *sas_device;
4970 unsigned long flags;
4971 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4972
4973 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4974 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4975 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4976 if (!sas_device)
4977 return;
4978 _scsih_remove_device(ioc, sas_device);
4979 }
4980
4981 /**
4982 * _scsih_sas_pd_add - remove pd component
4983 * @ioc: per adapter object
4984 * @element: IR config element data
4985 * Context: user.
4986 *
4987 * Return nothing.
4988 */
4989 static void
4990 _scsih_sas_pd_add(struct MPT2SAS_ADAPTER *ioc,
4991 Mpi2EventIrConfigElement_t *element)
4992 {
4993 struct _sas_device *sas_device;
4994 unsigned long flags;
4995 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4996 Mpi2ConfigReply_t mpi_reply;
4997 Mpi2SasDevicePage0_t sas_device_pg0;
4998 u32 ioc_status;
4999 u64 sas_address;
5000 u16 parent_handle;
5001
5002 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5003 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5004 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5005 if (sas_device) {
5006 sas_device->hidden_raid_component = 1;
5007 return;
5008 }
5009
5010 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
5011 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
5012 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5013 ioc->name, __FILE__, __LINE__, __func__);
5014 return;
5015 }
5016
5017 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5018 MPI2_IOCSTATUS_MASK;
5019 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
5020 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5021 ioc->name, __FILE__, __LINE__, __func__);
5022 return;
5023 }
5024
5025 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
5026 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
5027 mpt2sas_transport_update_links(ioc, sas_address, handle,
5028 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
5029
5030 _scsih_add_device(ioc, handle, 0, 1);
5031 }
5032
5033 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5034 /**
5035 * _scsih_sas_ir_config_change_event_debug - debug for IR Config Change events
5036 * @ioc: per adapter object
5037 * @event_data: event data payload
5038 * Context: user.
5039 *
5040 * Return nothing.
5041 */
5042 static void
5043 _scsih_sas_ir_config_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
5044 Mpi2EventDataIrConfigChangeList_t *event_data)
5045 {
5046 Mpi2EventIrConfigElement_t *element;
5047 u8 element_type;
5048 int i;
5049 char *reason_str = NULL, *element_str = NULL;
5050
5051 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
5052
5053 printk(MPT2SAS_DEBUG_FMT "raid config change: (%s), elements(%d)\n",
5054 ioc->name, (le32_to_cpu(event_data->Flags) &
5055 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ?
5056 "foreign" : "native", event_data->NumElements);
5057 for (i = 0; i < event_data->NumElements; i++, element++) {
5058 switch (element->ReasonCode) {
5059 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
5060 reason_str = "add";
5061 break;
5062 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
5063 reason_str = "remove";
5064 break;
5065 case MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE:
5066 reason_str = "no change";
5067 break;
5068 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
5069 reason_str = "hide";
5070 break;
5071 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
5072 reason_str = "unhide";
5073 break;
5074 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
5075 reason_str = "volume_created";
5076 break;
5077 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
5078 reason_str = "volume_deleted";
5079 break;
5080 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
5081 reason_str = "pd_created";
5082 break;
5083 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
5084 reason_str = "pd_deleted";
5085 break;
5086 default:
5087 reason_str = "unknown reason";
5088 break;
5089 }
5090 element_type = le16_to_cpu(element->ElementFlags) &
5091 MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
5092 switch (element_type) {
5093 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT:
5094 element_str = "volume";
5095 break;
5096 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT:
5097 element_str = "phys disk";
5098 break;
5099 case MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT:
5100 element_str = "hot spare";
5101 break;
5102 default:
5103 element_str = "unknown element";
5104 break;
5105 }
5106 printk(KERN_DEBUG "\t(%s:%s), vol handle(0x%04x), "
5107 "pd handle(0x%04x), pd num(0x%02x)\n", element_str,
5108 reason_str, le16_to_cpu(element->VolDevHandle),
5109 le16_to_cpu(element->PhysDiskDevHandle),
5110 element->PhysDiskNum);
5111 }
5112 }
5113 #endif
5114
5115 /**
5116 * _scsih_sas_ir_config_change_event - handle ir configuration change events
5117 * @ioc: per adapter object
5118 * @fw_event: The fw_event_work object
5119 * Context: user.
5120 *
5121 * Return nothing.
5122 */
5123 static void
5124 _scsih_sas_ir_config_change_event(struct MPT2SAS_ADAPTER *ioc,
5125 struct fw_event_work *fw_event)
5126 {
5127 Mpi2EventIrConfigElement_t *element;
5128 int i;
5129 u8 foreign_config;
5130 Mpi2EventDataIrConfigChangeList_t *event_data = fw_event->event_data;
5131
5132 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5133 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5134 _scsih_sas_ir_config_change_event_debug(ioc, event_data);
5135
5136 #endif
5137 foreign_config = (le32_to_cpu(event_data->Flags) &
5138 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
5139
5140 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
5141 for (i = 0; i < event_data->NumElements; i++, element++) {
5142
5143 switch (element->ReasonCode) {
5144 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
5145 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
5146 if (!foreign_config)
5147 _scsih_sas_volume_add(ioc, element);
5148 break;
5149 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
5150 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
5151 if (!foreign_config)
5152 _scsih_sas_volume_delete(ioc, element);
5153 break;
5154 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
5155 _scsih_sas_pd_hide(ioc, element);
5156 break;
5157 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
5158 _scsih_sas_pd_expose(ioc, element);
5159 break;
5160 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
5161 _scsih_sas_pd_add(ioc, element);
5162 break;
5163 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
5164 _scsih_sas_pd_delete(ioc, element);
5165 break;
5166 }
5167 }
5168 }
5169
5170 /**
5171 * _scsih_sas_ir_volume_event - IR volume event
5172 * @ioc: per adapter object
5173 * @fw_event: The fw_event_work object
5174 * Context: user.
5175 *
5176 * Return nothing.
5177 */
5178 static void
5179 _scsih_sas_ir_volume_event(struct MPT2SAS_ADAPTER *ioc,
5180 struct fw_event_work *fw_event)
5181 {
5182 u64 wwid;
5183 unsigned long flags;
5184 struct _raid_device *raid_device;
5185 u16 handle;
5186 u32 state;
5187 int rc;
5188 struct MPT2SAS_TARGET *sas_target_priv_data;
5189 Mpi2EventDataIrVolume_t *event_data = fw_event->event_data;
5190
5191 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
5192 return;
5193
5194 handle = le16_to_cpu(event_data->VolDevHandle);
5195 state = le32_to_cpu(event_data->NewValue);
5196 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle(0x%04x), "
5197 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
5198 le32_to_cpu(event_data->PreviousValue), state));
5199
5200 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5201 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
5202 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5203
5204 switch (state) {
5205 case MPI2_RAID_VOL_STATE_MISSING:
5206 case MPI2_RAID_VOL_STATE_FAILED:
5207 if (!raid_device)
5208 break;
5209 if (raid_device->starget) {
5210 sas_target_priv_data = raid_device->starget->hostdata;
5211 sas_target_priv_data->deleted = 1;
5212 scsi_remove_target(&raid_device->starget->dev);
5213 }
5214 _scsih_raid_device_remove(ioc, raid_device);
5215 break;
5216
5217 case MPI2_RAID_VOL_STATE_ONLINE:
5218 case MPI2_RAID_VOL_STATE_DEGRADED:
5219 case MPI2_RAID_VOL_STATE_OPTIMAL:
5220 if (raid_device)
5221 break;
5222
5223 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
5224 if (!wwid) {
5225 printk(MPT2SAS_ERR_FMT
5226 "failure at %s:%d/%s()!\n", ioc->name,
5227 __FILE__, __LINE__, __func__);
5228 break;
5229 }
5230
5231 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
5232 if (!raid_device) {
5233 printk(MPT2SAS_ERR_FMT
5234 "failure at %s:%d/%s()!\n", ioc->name,
5235 __FILE__, __LINE__, __func__);
5236 break;
5237 }
5238
5239 raid_device->id = ioc->sas_id++;
5240 raid_device->channel = RAID_CHANNEL;
5241 raid_device->handle = handle;
5242 raid_device->wwid = wwid;
5243 _scsih_raid_device_add(ioc, raid_device);
5244 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
5245 raid_device->id, 0);
5246 if (rc)
5247 _scsih_raid_device_remove(ioc, raid_device);
5248 break;
5249
5250 case MPI2_RAID_VOL_STATE_INITIALIZING:
5251 default:
5252 break;
5253 }
5254 }
5255
5256 /**
5257 * _scsih_sas_ir_physical_disk_event - PD event
5258 * @ioc: per adapter object
5259 * @fw_event: The fw_event_work object
5260 * Context: user.
5261 *
5262 * Return nothing.
5263 */
5264 static void
5265 _scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc,
5266 struct fw_event_work *fw_event)
5267 {
5268 u16 handle, parent_handle;
5269 u32 state;
5270 struct _sas_device *sas_device;
5271 unsigned long flags;
5272 Mpi2ConfigReply_t mpi_reply;
5273 Mpi2SasDevicePage0_t sas_device_pg0;
5274 u32 ioc_status;
5275 Mpi2EventDataIrPhysicalDisk_t *event_data = fw_event->event_data;
5276 u64 sas_address;
5277
5278 if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED)
5279 return;
5280
5281 handle = le16_to_cpu(event_data->PhysDiskDevHandle);
5282 state = le32_to_cpu(event_data->NewValue);
5283
5284 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle(0x%04x), "
5285 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
5286 le32_to_cpu(event_data->PreviousValue), state));
5287
5288 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5289 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5290 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5291
5292 switch (state) {
5293 case MPI2_RAID_PD_STATE_ONLINE:
5294 case MPI2_RAID_PD_STATE_DEGRADED:
5295 case MPI2_RAID_PD_STATE_REBUILDING:
5296 case MPI2_RAID_PD_STATE_OPTIMAL:
5297 if (sas_device) {
5298 sas_device->hidden_raid_component = 1;
5299 return;
5300 }
5301
5302 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
5303 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
5304 handle))) {
5305 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5306 ioc->name, __FILE__, __LINE__, __func__);
5307 return;
5308 }
5309
5310 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5311 MPI2_IOCSTATUS_MASK;
5312 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
5313 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5314 ioc->name, __FILE__, __LINE__, __func__);
5315 return;
5316 }
5317
5318 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
5319 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
5320 mpt2sas_transport_update_links(ioc, sas_address, handle,
5321 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
5322
5323 _scsih_add_device(ioc, handle, 0, 1);
5324
5325 break;
5326
5327 case MPI2_RAID_PD_STATE_OFFLINE:
5328 case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
5329 case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
5330 case MPI2_RAID_PD_STATE_HOT_SPARE:
5331 default:
5332 break;
5333 }
5334 }
5335
5336 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5337 /**
5338 * _scsih_sas_ir_operation_status_event_debug - debug for IR op event
5339 * @ioc: per adapter object
5340 * @event_data: event data payload
5341 * Context: user.
5342 *
5343 * Return nothing.
5344 */
5345 static void
5346 _scsih_sas_ir_operation_status_event_debug(struct MPT2SAS_ADAPTER *ioc,
5347 Mpi2EventDataIrOperationStatus_t *event_data)
5348 {
5349 char *reason_str = NULL;
5350
5351 switch (event_data->RAIDOperation) {
5352 case MPI2_EVENT_IR_RAIDOP_RESYNC:
5353 reason_str = "resync";
5354 break;
5355 case MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION:
5356 reason_str = "online capacity expansion";
5357 break;
5358 case MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK:
5359 reason_str = "consistency check";
5360 break;
5361 case MPI2_EVENT_IR_RAIDOP_BACKGROUND_INIT:
5362 reason_str = "background init";
5363 break;
5364 case MPI2_EVENT_IR_RAIDOP_MAKE_DATA_CONSISTENT:
5365 reason_str = "make data consistent";
5366 break;
5367 }
5368
5369 if (!reason_str)
5370 return;
5371
5372 printk(MPT2SAS_INFO_FMT "raid operational status: (%s)"
5373 "\thandle(0x%04x), percent complete(%d)\n",
5374 ioc->name, reason_str,
5375 le16_to_cpu(event_data->VolDevHandle),
5376 event_data->PercentComplete);
5377 }
5378 #endif
5379
5380 /**
5381 * _scsih_sas_ir_operation_status_event - handle RAID operation events
5382 * @ioc: per adapter object
5383 * @fw_event: The fw_event_work object
5384 * Context: user.
5385 *
5386 * Return nothing.
5387 */
5388 static void
5389 _scsih_sas_ir_operation_status_event(struct MPT2SAS_ADAPTER *ioc,
5390 struct fw_event_work *fw_event)
5391 {
5392 Mpi2EventDataIrOperationStatus_t *event_data = fw_event->event_data;
5393 static struct _raid_device *raid_device;
5394 unsigned long flags;
5395 u16 handle;
5396
5397 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5398 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5399 _scsih_sas_ir_operation_status_event_debug(ioc,
5400 event_data);
5401 #endif
5402
5403 /* code added for raid transport support */
5404 if (event_data->RAIDOperation == MPI2_EVENT_IR_RAIDOP_RESYNC) {
5405
5406 handle = le16_to_cpu(event_data->VolDevHandle);
5407
5408 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5409 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
5410 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5411
5412 if (!raid_device)
5413 return;
5414
5415 if (event_data->RAIDOperation == MPI2_EVENT_IR_RAIDOP_RESYNC)
5416 raid_device->percent_complete =
5417 event_data->PercentComplete;
5418 }
5419 }
5420
5421 /**
5422 * _scsih_task_set_full - handle task set full
5423 * @ioc: per adapter object
5424 * @fw_event: The fw_event_work object
5425 * Context: user.
5426 *
5427 * Throttle back qdepth.
5428 */
5429 static void
5430 _scsih_task_set_full(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
5431 *fw_event)
5432 {
5433 unsigned long flags;
5434 struct _sas_device *sas_device;
5435 static struct _raid_device *raid_device;
5436 struct scsi_device *sdev;
5437 int depth;
5438 u16 current_depth;
5439 u16 handle;
5440 int id, channel;
5441 u64 sas_address;
5442 Mpi2EventDataTaskSetFull_t *event_data = fw_event->event_data;
5443
5444 current_depth = le16_to_cpu(event_data->CurrentDepth);
5445 handle = le16_to_cpu(event_data->DevHandle);
5446 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5447 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5448 if (!sas_device) {
5449 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5450 return;
5451 }
5452 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5453 id = sas_device->id;
5454 channel = sas_device->channel;
5455 sas_address = sas_device->sas_address;
5456
5457 /* if hidden raid component, then change to volume characteristics */
5458 if (sas_device->hidden_raid_component && sas_device->volume_handle) {
5459 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5460 raid_device = _scsih_raid_device_find_by_handle(
5461 ioc, sas_device->volume_handle);
5462 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5463 if (raid_device) {
5464 id = raid_device->id;
5465 channel = raid_device->channel;
5466 handle = raid_device->handle;
5467 sas_address = raid_device->wwid;
5468 }
5469 }
5470
5471 if (ioc->logging_level & MPT_DEBUG_TASK_SET_FULL)
5472 starget_printk(KERN_DEBUG, sas_device->starget, "task set "
5473 "full: handle(0x%04x), sas_addr(0x%016llx), depth(%d)\n",
5474 handle, (unsigned long long)sas_address, current_depth);
5475
5476 shost_for_each_device(sdev, ioc->shost) {
5477 if (sdev->id == id && sdev->channel == channel) {
5478 if (current_depth > sdev->queue_depth) {
5479 if (ioc->logging_level &
5480 MPT_DEBUG_TASK_SET_FULL)
5481 sdev_printk(KERN_INFO, sdev, "strange "
5482 "observation, the queue depth is"
5483 " (%d) meanwhile fw queue depth "
5484 "is (%d)\n", sdev->queue_depth,
5485 current_depth);
5486 continue;
5487 }
5488 depth = scsi_track_queue_full(sdev,
5489 current_depth - 1);
5490 if (depth > 0)
5491 sdev_printk(KERN_INFO, sdev, "Queue depth "
5492 "reduced to (%d)\n", depth);
5493 else if (depth < 0)
5494 sdev_printk(KERN_INFO, sdev, "Tagged Command "
5495 "Queueing is being disabled\n");
5496 else if (depth == 0)
5497 if (ioc->logging_level &
5498 MPT_DEBUG_TASK_SET_FULL)
5499 sdev_printk(KERN_INFO, sdev,
5500 "Queue depth not changed yet\n");
5501 }
5502 }
5503 }
5504
5505 /**
5506 * _scsih_mark_responding_sas_device - mark a sas_devices as responding
5507 * @ioc: per adapter object
5508 * @sas_address: sas address
5509 * @slot: enclosure slot id
5510 * @handle: device handle
5511 *
5512 * After host reset, find out whether devices are still responding.
5513 * Used in _scsi_remove_unresponsive_sas_devices.
5514 *
5515 * Return nothing.
5516 */
5517 static void
5518 _scsih_mark_responding_sas_device(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
5519 u16 slot, u16 handle)
5520 {
5521 struct MPT2SAS_TARGET *sas_target_priv_data;
5522 struct scsi_target *starget;
5523 struct _sas_device *sas_device;
5524 unsigned long flags;
5525
5526 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5527 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
5528 if (sas_device->sas_address == sas_address &&
5529 sas_device->slot == slot && sas_device->starget) {
5530 sas_device->responding = 1;
5531 starget = sas_device->starget;
5532 sas_target_priv_data = starget->hostdata;
5533 sas_target_priv_data->tm_busy = 0;
5534 starget_printk(KERN_INFO, sas_device->starget,
5535 "handle(0x%04x), sas_addr(0x%016llx), enclosure "
5536 "logical id(0x%016llx), slot(%d)\n", handle,
5537 (unsigned long long)sas_device->sas_address,
5538 (unsigned long long)
5539 sas_device->enclosure_logical_id,
5540 sas_device->slot);
5541 if (sas_device->handle == handle)
5542 goto out;
5543 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
5544 sas_device->handle);
5545 sas_device->handle = handle;
5546 sas_target_priv_data->handle = handle;
5547 goto out;
5548 }
5549 }
5550 out:
5551 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5552 }
5553
5554 /**
5555 * _scsih_search_responding_sas_devices -
5556 * @ioc: per adapter object
5557 *
5558 * After host reset, find out whether devices are still responding.
5559 * If not remove.
5560 *
5561 * Return nothing.
5562 */
5563 static void
5564 _scsih_search_responding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
5565 {
5566 Mpi2SasDevicePage0_t sas_device_pg0;
5567 Mpi2ConfigReply_t mpi_reply;
5568 u16 ioc_status;
5569 __le64 sas_address;
5570 u16 handle;
5571 u32 device_info;
5572 u16 slot;
5573
5574 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
5575
5576 if (list_empty(&ioc->sas_device_list))
5577 return;
5578
5579 handle = 0xFFFF;
5580 while (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
5581 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
5582 handle))) {
5583 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5584 MPI2_IOCSTATUS_MASK;
5585 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
5586 break;
5587 handle = le16_to_cpu(sas_device_pg0.DevHandle);
5588 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
5589 if (!(_scsih_is_end_device(device_info)))
5590 continue;
5591 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
5592 slot = le16_to_cpu(sas_device_pg0.Slot);
5593 _scsih_mark_responding_sas_device(ioc, sas_address, slot,
5594 handle);
5595 }
5596 }
5597
5598 /**
5599 * _scsih_mark_responding_raid_device - mark a raid_device as responding
5600 * @ioc: per adapter object
5601 * @wwid: world wide identifier for raid volume
5602 * @handle: device handle
5603 *
5604 * After host reset, find out whether devices are still responding.
5605 * Used in _scsi_remove_unresponsive_raid_devices.
5606 *
5607 * Return nothing.
5608 */
5609 static void
5610 _scsih_mark_responding_raid_device(struct MPT2SAS_ADAPTER *ioc, u64 wwid,
5611 u16 handle)
5612 {
5613 struct MPT2SAS_TARGET *sas_target_priv_data;
5614 struct scsi_target *starget;
5615 struct _raid_device *raid_device;
5616 unsigned long flags;
5617
5618 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5619 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
5620 if (raid_device->wwid == wwid && raid_device->starget) {
5621 raid_device->responding = 1;
5622 starget_printk(KERN_INFO, raid_device->starget,
5623 "handle(0x%04x), wwid(0x%016llx)\n", handle,
5624 (unsigned long long)raid_device->wwid);
5625 if (raid_device->handle == handle)
5626 goto out;
5627 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
5628 raid_device->handle);
5629 raid_device->handle = handle;
5630 starget = raid_device->starget;
5631 sas_target_priv_data = starget->hostdata;
5632 sas_target_priv_data->handle = handle;
5633 goto out;
5634 }
5635 }
5636 out:
5637 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5638 }
5639
5640 /**
5641 * _scsih_search_responding_raid_devices -
5642 * @ioc: per adapter object
5643 *
5644 * After host reset, find out whether devices are still responding.
5645 * If not remove.
5646 *
5647 * Return nothing.
5648 */
5649 static void
5650 _scsih_search_responding_raid_devices(struct MPT2SAS_ADAPTER *ioc)
5651 {
5652 Mpi2RaidVolPage1_t volume_pg1;
5653 Mpi2ConfigReply_t mpi_reply;
5654 u16 ioc_status;
5655 u16 handle;
5656
5657 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
5658
5659 if (list_empty(&ioc->raid_device_list))
5660 return;
5661
5662 handle = 0xFFFF;
5663 while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
5664 &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
5665 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5666 MPI2_IOCSTATUS_MASK;
5667 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
5668 break;
5669 handle = le16_to_cpu(volume_pg1.DevHandle);
5670 _scsih_mark_responding_raid_device(ioc,
5671 le64_to_cpu(volume_pg1.WWID), handle);
5672 }
5673 }
5674
5675 /**
5676 * _scsih_mark_responding_expander - mark a expander as responding
5677 * @ioc: per adapter object
5678 * @sas_address: sas address
5679 * @handle:
5680 *
5681 * After host reset, find out whether devices are still responding.
5682 * Used in _scsi_remove_unresponsive_expanders.
5683 *
5684 * Return nothing.
5685 */
5686 static void
5687 _scsih_mark_responding_expander(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
5688 u16 handle)
5689 {
5690 struct _sas_node *sas_expander;
5691 unsigned long flags;
5692 int i;
5693
5694 spin_lock_irqsave(&ioc->sas_node_lock, flags);
5695 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
5696 if (sas_expander->sas_address != sas_address)
5697 continue;
5698 sas_expander->responding = 1;
5699 if (sas_expander->handle == handle)
5700 goto out;
5701 printk(KERN_INFO "\texpander(0x%016llx): handle changed"
5702 " from(0x%04x) to (0x%04x)!!!\n",
5703 (unsigned long long)sas_expander->sas_address,
5704 sas_expander->handle, handle);
5705 sas_expander->handle = handle;
5706 for (i = 0 ; i < sas_expander->num_phys ; i++)
5707 sas_expander->phy[i].handle = handle;
5708 goto out;
5709 }
5710 out:
5711 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
5712 }
5713
5714 /**
5715 * _scsih_search_responding_expanders -
5716 * @ioc: per adapter object
5717 *
5718 * After host reset, find out whether devices are still responding.
5719 * If not remove.
5720 *
5721 * Return nothing.
5722 */
5723 static void
5724 _scsih_search_responding_expanders(struct MPT2SAS_ADAPTER *ioc)
5725 {
5726 Mpi2ExpanderPage0_t expander_pg0;
5727 Mpi2ConfigReply_t mpi_reply;
5728 u16 ioc_status;
5729 __le64 sas_address;
5730 u16 handle;
5731
5732 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
5733
5734 if (list_empty(&ioc->sas_expander_list))
5735 return;
5736
5737 handle = 0xFFFF;
5738 while (!(mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
5739 MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
5740
5741 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5742 MPI2_IOCSTATUS_MASK;
5743 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
5744 break;
5745
5746 handle = le16_to_cpu(expander_pg0.DevHandle);
5747 sas_address = le64_to_cpu(expander_pg0.SASAddress);
5748 printk(KERN_INFO "\texpander present: handle(0x%04x), "
5749 "sas_addr(0x%016llx)\n", handle,
5750 (unsigned long long)sas_address);
5751 _scsih_mark_responding_expander(ioc, sas_address, handle);
5752 }
5753
5754 }
5755
5756 /**
5757 * _scsih_remove_unresponding_sas_devices - removing unresponding devices
5758 * @ioc: per adapter object
5759 *
5760 * Return nothing.
5761 */
5762 static void
5763 _scsih_remove_unresponding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
5764 {
5765 struct _sas_device *sas_device, *sas_device_next;
5766 struct _sas_node *sas_expander;
5767 struct _raid_device *raid_device, *raid_device_next;
5768
5769
5770 list_for_each_entry_safe(sas_device, sas_device_next,
5771 &ioc->sas_device_list, list) {
5772 if (sas_device->responding) {
5773 sas_device->responding = 0;
5774 continue;
5775 }
5776 if (sas_device->starget)
5777 starget_printk(KERN_INFO, sas_device->starget,
5778 "removing: handle(0x%04x), sas_addr(0x%016llx), "
5779 "enclosure logical id(0x%016llx), slot(%d)\n",
5780 sas_device->handle,
5781 (unsigned long long)sas_device->sas_address,
5782 (unsigned long long)
5783 sas_device->enclosure_logical_id,
5784 sas_device->slot);
5785 _scsih_remove_device(ioc, sas_device);
5786 }
5787
5788 list_for_each_entry_safe(raid_device, raid_device_next,
5789 &ioc->raid_device_list, list) {
5790 if (raid_device->responding) {
5791 raid_device->responding = 0;
5792 continue;
5793 }
5794 if (raid_device->starget) {
5795 starget_printk(KERN_INFO, raid_device->starget,
5796 "removing: handle(0x%04x), wwid(0x%016llx)\n",
5797 raid_device->handle,
5798 (unsigned long long)raid_device->wwid);
5799 scsi_remove_target(&raid_device->starget->dev);
5800 }
5801 _scsih_raid_device_remove(ioc, raid_device);
5802 }
5803
5804 retry_expander_search:
5805 sas_expander = NULL;
5806 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
5807 if (sas_expander->responding) {
5808 sas_expander->responding = 0;
5809 continue;
5810 }
5811 _scsih_expander_remove(ioc, sas_expander->sas_address);
5812 goto retry_expander_search;
5813 }
5814 }
5815
5816 /**
5817 * mpt2sas_scsih_reset_handler - reset callback handler (for scsih)
5818 * @ioc: per adapter object
5819 * @reset_phase: phase
5820 *
5821 * The handler for doing any required cleanup or initialization.
5822 *
5823 * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
5824 * MPT2_IOC_DONE_RESET
5825 *
5826 * Return nothing.
5827 */
5828 void
5829 mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
5830 {
5831 switch (reset_phase) {
5832 case MPT2_IOC_PRE_RESET:
5833 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
5834 "MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
5835 break;
5836 case MPT2_IOC_AFTER_RESET:
5837 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
5838 "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
5839 if (ioc->scsih_cmds.status & MPT2_CMD_PENDING) {
5840 ioc->scsih_cmds.status |= MPT2_CMD_RESET;
5841 mpt2sas_base_free_smid(ioc, ioc->scsih_cmds.smid);
5842 complete(&ioc->scsih_cmds.done);
5843 }
5844 if (ioc->tm_cmds.status & MPT2_CMD_PENDING) {
5845 ioc->tm_cmds.status |= MPT2_CMD_RESET;
5846 mpt2sas_base_free_smid(ioc, ioc->tm_cmds.smid);
5847 complete(&ioc->tm_cmds.done);
5848 }
5849 _scsih_fw_event_cleanup_queue(ioc);
5850 _scsih_flush_running_cmds(ioc);
5851 _scsih_queue_rescan(ioc);
5852 break;
5853 case MPT2_IOC_DONE_RESET:
5854 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
5855 "MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
5856 _scsih_sas_host_refresh(ioc);
5857 break;
5858 }
5859 }
5860
5861 /**
5862 * _firmware_event_work - delayed task for processing firmware events
5863 * @ioc: per adapter object
5864 * @work: equal to the fw_event_work object
5865 * Context: user.
5866 *
5867 * Return nothing.
5868 */
5869 static void
5870 _firmware_event_work(struct work_struct *work)
5871 {
5872 struct fw_event_work *fw_event = container_of(work,
5873 struct fw_event_work, delayed_work.work);
5874 unsigned long flags;
5875 struct MPT2SAS_ADAPTER *ioc = fw_event->ioc;
5876
5877 /* the queue is being flushed so ignore this event */
5878 if (ioc->remove_host || fw_event->cancel_pending_work) {
5879 _scsih_fw_event_free(ioc, fw_event);
5880 return;
5881 }
5882
5883 if (fw_event->event == MPT2SAS_RESCAN_AFTER_HOST_RESET) {
5884 _scsih_fw_event_free(ioc, fw_event);
5885 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
5886 if (ioc->shost_recovery) {
5887 init_completion(&ioc->shost_recovery_done);
5888 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock,
5889 flags);
5890 wait_for_completion(&ioc->shost_recovery_done);
5891 } else
5892 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock,
5893 flags);
5894 _scsih_search_responding_sas_devices(ioc);
5895 _scsih_search_responding_raid_devices(ioc);
5896 _scsih_search_responding_expanders(ioc);
5897 _scsih_remove_unresponding_sas_devices(ioc);
5898 return;
5899 }
5900
5901 switch (fw_event->event) {
5902 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
5903 _scsih_sas_topology_change_event(ioc, fw_event);
5904 break;
5905 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
5906 _scsih_sas_device_status_change_event(ioc,
5907 fw_event);
5908 break;
5909 case MPI2_EVENT_SAS_DISCOVERY:
5910 _scsih_sas_discovery_event(ioc,
5911 fw_event);
5912 break;
5913 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
5914 _scsih_sas_broadcast_primative_event(ioc,
5915 fw_event);
5916 break;
5917 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
5918 _scsih_sas_enclosure_dev_status_change_event(ioc,
5919 fw_event);
5920 break;
5921 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
5922 _scsih_sas_ir_config_change_event(ioc, fw_event);
5923 break;
5924 case MPI2_EVENT_IR_VOLUME:
5925 _scsih_sas_ir_volume_event(ioc, fw_event);
5926 break;
5927 case MPI2_EVENT_IR_PHYSICAL_DISK:
5928 _scsih_sas_ir_physical_disk_event(ioc, fw_event);
5929 break;
5930 case MPI2_EVENT_IR_OPERATION_STATUS:
5931 _scsih_sas_ir_operation_status_event(ioc, fw_event);
5932 break;
5933 case MPI2_EVENT_TASK_SET_FULL:
5934 _scsih_task_set_full(ioc, fw_event);
5935 break;
5936 }
5937 _scsih_fw_event_free(ioc, fw_event);
5938 }
5939
5940 /**
5941 * mpt2sas_scsih_event_callback - firmware event handler (called at ISR time)
5942 * @ioc: per adapter object
5943 * @msix_index: MSIX table index supplied by the OS
5944 * @reply: reply message frame(lower 32bit addr)
5945 * Context: interrupt.
5946 *
5947 * This function merely adds a new work task into ioc->firmware_event_thread.
5948 * The tasks are worked from _firmware_event_work in user context.
5949 *
5950 * Return 1 meaning mf should be freed from _base_interrupt
5951 * 0 means the mf is freed from this function.
5952 */
5953 u8
5954 mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index,
5955 u32 reply)
5956 {
5957 struct fw_event_work *fw_event;
5958 Mpi2EventNotificationReply_t *mpi_reply;
5959 u16 event;
5960 u16 sz;
5961
5962 /* events turned off due to host reset or driver unloading */
5963 if (ioc->remove_host)
5964 return 1;
5965
5966 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
5967 event = le16_to_cpu(mpi_reply->Event);
5968
5969 switch (event) {
5970 /* handle these */
5971 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
5972 {
5973 Mpi2EventDataSasBroadcastPrimitive_t *baen_data =
5974 (Mpi2EventDataSasBroadcastPrimitive_t *)
5975 mpi_reply->EventData;
5976
5977 if (baen_data->Primitive !=
5978 MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT ||
5979 ioc->broadcast_aen_busy)
5980 return 1;
5981 ioc->broadcast_aen_busy = 1;
5982 break;
5983 }
5984
5985 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
5986 _scsih_check_topo_delete_events(ioc,
5987 (Mpi2EventDataSasTopologyChangeList_t *)
5988 mpi_reply->EventData);
5989 break;
5990
5991 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
5992 case MPI2_EVENT_IR_OPERATION_STATUS:
5993 case MPI2_EVENT_SAS_DISCOVERY:
5994 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
5995 case MPI2_EVENT_IR_VOLUME:
5996 case MPI2_EVENT_IR_PHYSICAL_DISK:
5997 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
5998 case MPI2_EVENT_TASK_SET_FULL:
5999 break;
6000
6001 default: /* ignore the rest */
6002 return 1;
6003 }
6004
6005 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
6006 if (!fw_event) {
6007 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6008 ioc->name, __FILE__, __LINE__, __func__);
6009 return 1;
6010 }
6011 sz = le16_to_cpu(mpi_reply->EventDataLength) * 4;
6012 fw_event->event_data = kzalloc(sz, GFP_ATOMIC);
6013 if (!fw_event->event_data) {
6014 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6015 ioc->name, __FILE__, __LINE__, __func__);
6016 kfree(fw_event);
6017 return 1;
6018 }
6019
6020 memcpy(fw_event->event_data, mpi_reply->EventData,
6021 sz);
6022 fw_event->ioc = ioc;
6023 fw_event->VF_ID = mpi_reply->VF_ID;
6024 fw_event->VP_ID = mpi_reply->VP_ID;
6025 fw_event->event = event;
6026 _scsih_fw_event_add(ioc, fw_event);
6027 return 1;
6028 }
6029
6030 /* shost template */
6031 static struct scsi_host_template scsih_driver_template = {
6032 .module = THIS_MODULE,
6033 .name = "Fusion MPT SAS Host",
6034 .proc_name = MPT2SAS_DRIVER_NAME,
6035 .queuecommand = _scsih_qcmd,
6036 .target_alloc = _scsih_target_alloc,
6037 .slave_alloc = _scsih_slave_alloc,
6038 .slave_configure = _scsih_slave_configure,
6039 .target_destroy = _scsih_target_destroy,
6040 .slave_destroy = _scsih_slave_destroy,
6041 .change_queue_depth = _scsih_change_queue_depth,
6042 .change_queue_type = _scsih_change_queue_type,
6043 .eh_abort_handler = _scsih_abort,
6044 .eh_device_reset_handler = _scsih_dev_reset,
6045 .eh_target_reset_handler = _scsih_target_reset,
6046 .eh_host_reset_handler = _scsih_host_reset,
6047 .bios_param = _scsih_bios_param,
6048 .can_queue = 1,
6049 .this_id = -1,
6050 .sg_tablesize = MPT2SAS_SG_DEPTH,
6051 .max_sectors = 8192,
6052 .cmd_per_lun = 7,
6053 .use_clustering = ENABLE_CLUSTERING,
6054 .shost_attrs = mpt2sas_host_attrs,
6055 .sdev_attrs = mpt2sas_dev_attrs,
6056 };
6057
6058 /**
6059 * _scsih_expander_node_remove - removing expander device from list.
6060 * @ioc: per adapter object
6061 * @sas_expander: the sas_device object
6062 * Context: Calling function should acquire ioc->sas_node_lock.
6063 *
6064 * Removing object and freeing associated memory from the
6065 * ioc->sas_expander_list.
6066 *
6067 * Return nothing.
6068 */
6069 static void
6070 _scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
6071 struct _sas_node *sas_expander)
6072 {
6073 struct _sas_port *mpt2sas_port;
6074 struct _sas_device *sas_device;
6075 struct _sas_node *expander_sibling;
6076 unsigned long flags;
6077
6078 if (!sas_expander)
6079 return;
6080
6081 /* remove sibling ports attached to this expander */
6082 retry_device_search:
6083 list_for_each_entry(mpt2sas_port,
6084 &sas_expander->sas_port_list, port_list) {
6085 if (mpt2sas_port->remote_identify.device_type ==
6086 SAS_END_DEVICE) {
6087 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6088 sas_device =
6089 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
6090 mpt2sas_port->remote_identify.sas_address);
6091 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6092 if (!sas_device)
6093 continue;
6094 _scsih_remove_device(ioc, sas_device);
6095 if (ioc->shost_recovery)
6096 return;
6097 goto retry_device_search;
6098 }
6099 }
6100
6101 retry_expander_search:
6102 list_for_each_entry(mpt2sas_port,
6103 &sas_expander->sas_port_list, port_list) {
6104
6105 if (mpt2sas_port->remote_identify.device_type ==
6106 MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER ||
6107 mpt2sas_port->remote_identify.device_type ==
6108 MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) {
6109
6110 spin_lock_irqsave(&ioc->sas_node_lock, flags);
6111 expander_sibling =
6112 mpt2sas_scsih_expander_find_by_sas_address(
6113 ioc, mpt2sas_port->remote_identify.sas_address);
6114 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
6115 if (!expander_sibling)
6116 continue;
6117 _scsih_expander_remove(ioc,
6118 expander_sibling->sas_address);
6119 if (ioc->shost_recovery)
6120 return;
6121 goto retry_expander_search;
6122 }
6123 }
6124
6125 mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
6126 sas_expander->sas_address_parent);
6127
6128 printk(MPT2SAS_INFO_FMT "expander_remove: handle"
6129 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name,
6130 sas_expander->handle, (unsigned long long)
6131 sas_expander->sas_address);
6132
6133 list_del(&sas_expander->list);
6134 kfree(sas_expander->phy);
6135 kfree(sas_expander);
6136 }
6137
6138 /**
6139 * _scsih_ir_shutdown - IR shutdown notification
6140 * @ioc: per adapter object
6141 *
6142 * Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
6143 * the host system is shutting down.
6144 *
6145 * Return nothing.
6146 */
6147 static void
6148 _scsih_ir_shutdown(struct MPT2SAS_ADAPTER *ioc)
6149 {
6150 Mpi2RaidActionRequest_t *mpi_request;
6151 Mpi2RaidActionReply_t *mpi_reply;
6152 u16 smid;
6153
6154 /* is IR firmware build loaded ? */
6155 if (!ioc->ir_firmware)
6156 return;
6157
6158 /* are there any volumes ? */
6159 if (list_empty(&ioc->raid_device_list))
6160 return;
6161
6162 mutex_lock(&ioc->scsih_cmds.mutex);
6163
6164 if (ioc->scsih_cmds.status != MPT2_CMD_NOT_USED) {
6165 printk(MPT2SAS_ERR_FMT "%s: scsih_cmd in use\n",
6166 ioc->name, __func__);
6167 goto out;
6168 }
6169 ioc->scsih_cmds.status = MPT2_CMD_PENDING;
6170
6171 smid = mpt2sas_base_get_smid(ioc, ioc->scsih_cb_idx);
6172 if (!smid) {
6173 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
6174 ioc->name, __func__);
6175 ioc->scsih_cmds.status = MPT2_CMD_NOT_USED;
6176 goto out;
6177 }
6178
6179 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
6180 ioc->scsih_cmds.smid = smid;
6181 memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t));
6182
6183 mpi_request->Function = MPI2_FUNCTION_RAID_ACTION;
6184 mpi_request->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;
6185
6186 printk(MPT2SAS_INFO_FMT "IR shutdown (sending)\n", ioc->name);
6187 init_completion(&ioc->scsih_cmds.done);
6188 mpt2sas_base_put_smid_default(ioc, smid);
6189 wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
6190
6191 if (!(ioc->scsih_cmds.status & MPT2_CMD_COMPLETE)) {
6192 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
6193 ioc->name, __func__);
6194 goto out;
6195 }
6196
6197 if (ioc->scsih_cmds.status & MPT2_CMD_REPLY_VALID) {
6198 mpi_reply = ioc->scsih_cmds.reply;
6199
6200 printk(MPT2SAS_INFO_FMT "IR shutdown (complete): "
6201 "ioc_status(0x%04x), loginfo(0x%08x)\n",
6202 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
6203 le32_to_cpu(mpi_reply->IOCLogInfo));
6204 }
6205
6206 out:
6207 ioc->scsih_cmds.status = MPT2_CMD_NOT_USED;
6208 mutex_unlock(&ioc->scsih_cmds.mutex);
6209 }
6210
6211 /**
6212 * _scsih_shutdown - routine call during system shutdown
6213 * @pdev: PCI device struct
6214 *
6215 * Return nothing.
6216 */
6217 static void
6218 _scsih_shutdown(struct pci_dev *pdev)
6219 {
6220 struct Scsi_Host *shost = pci_get_drvdata(pdev);
6221 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
6222 struct workqueue_struct *wq;
6223 unsigned long flags;
6224
6225 ioc->remove_host = 1;
6226 _scsih_fw_event_cleanup_queue(ioc);
6227
6228 spin_lock_irqsave(&ioc->fw_event_lock, flags);
6229 wq = ioc->firmware_event_thread;
6230 ioc->firmware_event_thread = NULL;
6231 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
6232 if (wq)
6233 destroy_workqueue(wq);
6234
6235 _scsih_ir_shutdown(ioc);
6236 mpt2sas_base_detach(ioc);
6237 }
6238
6239 /**
6240 * _scsih_remove - detach and remove add host
6241 * @pdev: PCI device struct
6242 *
6243 * Routine called when unloading the driver.
6244 * Return nothing.
6245 */
6246 static void __devexit
6247 _scsih_remove(struct pci_dev *pdev)
6248 {
6249 struct Scsi_Host *shost = pci_get_drvdata(pdev);
6250 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
6251 struct _sas_port *mpt2sas_port;
6252 struct _sas_device *sas_device;
6253 struct _sas_node *expander_sibling;
6254 struct _raid_device *raid_device, *next;
6255 struct MPT2SAS_TARGET *sas_target_priv_data;
6256 struct workqueue_struct *wq;
6257 unsigned long flags;
6258
6259 ioc->remove_host = 1;
6260 _scsih_fw_event_cleanup_queue(ioc);
6261
6262 spin_lock_irqsave(&ioc->fw_event_lock, flags);
6263 wq = ioc->firmware_event_thread;
6264 ioc->firmware_event_thread = NULL;
6265 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
6266 if (wq)
6267 destroy_workqueue(wq);
6268
6269 /* release all the volumes */
6270 list_for_each_entry_safe(raid_device, next, &ioc->raid_device_list,
6271 list) {
6272 if (raid_device->starget) {
6273 sas_target_priv_data =
6274 raid_device->starget->hostdata;
6275 sas_target_priv_data->deleted = 1;
6276 scsi_remove_target(&raid_device->starget->dev);
6277 }
6278 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), wwid"
6279 "(0x%016llx)\n", ioc->name, raid_device->handle,
6280 (unsigned long long) raid_device->wwid);
6281 _scsih_raid_device_remove(ioc, raid_device);
6282 }
6283
6284 /* free ports attached to the sas_host */
6285 retry_again:
6286 list_for_each_entry(mpt2sas_port,
6287 &ioc->sas_hba.sas_port_list, port_list) {
6288 if (mpt2sas_port->remote_identify.device_type ==
6289 SAS_END_DEVICE) {
6290 sas_device =
6291 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
6292 mpt2sas_port->remote_identify.sas_address);
6293 if (sas_device) {
6294 _scsih_remove_device(ioc, sas_device);
6295 goto retry_again;
6296 }
6297 } else {
6298 expander_sibling =
6299 mpt2sas_scsih_expander_find_by_sas_address(ioc,
6300 mpt2sas_port->remote_identify.sas_address);
6301 if (expander_sibling) {
6302 _scsih_expander_remove(ioc,
6303 expander_sibling->sas_address);
6304 goto retry_again;
6305 }
6306 }
6307 }
6308
6309 /* free phys attached to the sas_host */
6310 if (ioc->sas_hba.num_phys) {
6311 kfree(ioc->sas_hba.phy);
6312 ioc->sas_hba.phy = NULL;
6313 ioc->sas_hba.num_phys = 0;
6314 }
6315
6316 sas_remove_host(shost);
6317 _scsih_shutdown(pdev);
6318 list_del(&ioc->list);
6319 scsi_remove_host(shost);
6320 scsi_host_put(shost);
6321 }
6322
6323 /**
6324 * _scsih_probe_boot_devices - reports 1st device
6325 * @ioc: per adapter object
6326 *
6327 * If specified in bios page 2, this routine reports the 1st
6328 * device scsi-ml or sas transport for persistent boot device
6329 * purposes. Please refer to function _scsih_determine_boot_device()
6330 */
6331 static void
6332 _scsih_probe_boot_devices(struct MPT2SAS_ADAPTER *ioc)
6333 {
6334 u8 is_raid;
6335 void *device;
6336 struct _sas_device *sas_device;
6337 struct _raid_device *raid_device;
6338 u16 handle;
6339 u64 sas_address_parent;
6340 u64 sas_address;
6341 unsigned long flags;
6342 int rc;
6343
6344 device = NULL;
6345 if (ioc->req_boot_device.device) {
6346 device = ioc->req_boot_device.device;
6347 is_raid = ioc->req_boot_device.is_raid;
6348 } else if (ioc->req_alt_boot_device.device) {
6349 device = ioc->req_alt_boot_device.device;
6350 is_raid = ioc->req_alt_boot_device.is_raid;
6351 } else if (ioc->current_boot_device.device) {
6352 device = ioc->current_boot_device.device;
6353 is_raid = ioc->current_boot_device.is_raid;
6354 }
6355
6356 if (!device)
6357 return;
6358
6359 if (is_raid) {
6360 raid_device = device;
6361 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
6362 raid_device->id, 0);
6363 if (rc)
6364 _scsih_raid_device_remove(ioc, raid_device);
6365 } else {
6366 sas_device = device;
6367 handle = sas_device->handle;
6368 sas_address_parent = sas_device->sas_address_parent;
6369 sas_address = sas_device->sas_address;
6370 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6371 list_move_tail(&sas_device->list, &ioc->sas_device_list);
6372 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6373 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
6374 sas_device->sas_address_parent)) {
6375 _scsih_sas_device_remove(ioc, sas_device);
6376 } else if (!sas_device->starget) {
6377 mpt2sas_transport_port_remove(ioc, sas_address,
6378 sas_address_parent);
6379 _scsih_sas_device_remove(ioc, sas_device);
6380 }
6381 }
6382 }
6383
6384 /**
6385 * _scsih_probe_raid - reporting raid volumes to scsi-ml
6386 * @ioc: per adapter object
6387 *
6388 * Called during initial loading of the driver.
6389 */
6390 static void
6391 _scsih_probe_raid(struct MPT2SAS_ADAPTER *ioc)
6392 {
6393 struct _raid_device *raid_device, *raid_next;
6394 int rc;
6395
6396 list_for_each_entry_safe(raid_device, raid_next,
6397 &ioc->raid_device_list, list) {
6398 if (raid_device->starget)
6399 continue;
6400 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
6401 raid_device->id, 0);
6402 if (rc)
6403 _scsih_raid_device_remove(ioc, raid_device);
6404 }
6405 }
6406
6407 /**
6408 * _scsih_probe_sas - reporting sas devices to sas transport
6409 * @ioc: per adapter object
6410 *
6411 * Called during initial loading of the driver.
6412 */
6413 static void
6414 _scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc)
6415 {
6416 struct _sas_device *sas_device, *next;
6417 unsigned long flags;
6418
6419 /* SAS Device List */
6420 list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list,
6421 list) {
6422 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6423 list_move_tail(&sas_device->list, &ioc->sas_device_list);
6424 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6425
6426 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
6427 sas_device->sas_address_parent)) {
6428 _scsih_sas_device_remove(ioc, sas_device);
6429 } else if (!sas_device->starget) {
6430 mpt2sas_transport_port_remove(ioc,
6431 sas_device->sas_address,
6432 sas_device->sas_address_parent);
6433 _scsih_sas_device_remove(ioc, sas_device);
6434 }
6435 }
6436 }
6437
6438 /**
6439 * _scsih_probe_devices - probing for devices
6440 * @ioc: per adapter object
6441 *
6442 * Called during initial loading of the driver.
6443 */
6444 static void
6445 _scsih_probe_devices(struct MPT2SAS_ADAPTER *ioc)
6446 {
6447 u16 volume_mapping_flags =
6448 le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) &
6449 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
6450
6451 if (!(ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR))
6452 return; /* return when IOC doesn't support initiator mode */
6453
6454 _scsih_probe_boot_devices(ioc);
6455
6456 if (ioc->ir_firmware) {
6457 if ((volume_mapping_flags &
6458 MPI2_IOCPAGE8_IRFLAGS_HIGH_VOLUME_MAPPING)) {
6459 _scsih_probe_sas(ioc);
6460 _scsih_probe_raid(ioc);
6461 } else {
6462 _scsih_probe_raid(ioc);
6463 _scsih_probe_sas(ioc);
6464 }
6465 } else
6466 _scsih_probe_sas(ioc);
6467 }
6468
6469 /**
6470 * _scsih_probe - attach and add scsi host
6471 * @pdev: PCI device struct
6472 * @id: pci device id
6473 *
6474 * Returns 0 success, anything else error.
6475 */
6476 static int
6477 _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
6478 {
6479 struct MPT2SAS_ADAPTER *ioc;
6480 struct Scsi_Host *shost;
6481
6482 shost = scsi_host_alloc(&scsih_driver_template,
6483 sizeof(struct MPT2SAS_ADAPTER));
6484 if (!shost)
6485 return -ENODEV;
6486
6487 /* init local params */
6488 ioc = shost_priv(shost);
6489 memset(ioc, 0, sizeof(struct MPT2SAS_ADAPTER));
6490 INIT_LIST_HEAD(&ioc->list);
6491 list_add_tail(&ioc->list, &mpt2sas_ioc_list);
6492 ioc->shost = shost;
6493 ioc->id = mpt_ids++;
6494 sprintf(ioc->name, "%s%d", MPT2SAS_DRIVER_NAME, ioc->id);
6495 ioc->pdev = pdev;
6496 ioc->scsi_io_cb_idx = scsi_io_cb_idx;
6497 ioc->tm_cb_idx = tm_cb_idx;
6498 ioc->ctl_cb_idx = ctl_cb_idx;
6499 ioc->base_cb_idx = base_cb_idx;
6500 ioc->transport_cb_idx = transport_cb_idx;
6501 ioc->scsih_cb_idx = scsih_cb_idx;
6502 ioc->config_cb_idx = config_cb_idx;
6503 ioc->tm_tr_cb_idx = tm_tr_cb_idx;
6504 ioc->tm_sas_control_cb_idx = tm_sas_control_cb_idx;
6505 ioc->logging_level = logging_level;
6506 /* misc semaphores and spin locks */
6507 spin_lock_init(&ioc->ioc_reset_in_progress_lock);
6508 spin_lock_init(&ioc->scsi_lookup_lock);
6509 spin_lock_init(&ioc->sas_device_lock);
6510 spin_lock_init(&ioc->sas_node_lock);
6511 spin_lock_init(&ioc->fw_event_lock);
6512 spin_lock_init(&ioc->raid_device_lock);
6513
6514 INIT_LIST_HEAD(&ioc->sas_device_list);
6515 INIT_LIST_HEAD(&ioc->sas_device_init_list);
6516 INIT_LIST_HEAD(&ioc->sas_expander_list);
6517 INIT_LIST_HEAD(&ioc->fw_event_list);
6518 INIT_LIST_HEAD(&ioc->raid_device_list);
6519 INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list);
6520 INIT_LIST_HEAD(&ioc->delayed_tr_list);
6521
6522 /* init shost parameters */
6523 shost->max_cmd_len = 16;
6524 shost->max_lun = max_lun;
6525 shost->transportt = mpt2sas_transport_template;
6526 shost->unique_id = ioc->id;
6527
6528 if ((scsi_add_host(shost, &pdev->dev))) {
6529 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6530 ioc->name, __FILE__, __LINE__, __func__);
6531 list_del(&ioc->list);
6532 goto out_add_shost_fail;
6533 }
6534
6535 scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
6536 | SHOST_DIF_TYPE3_PROTECTION);
6537 scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC);
6538
6539 /* event thread */
6540 snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
6541 "fw_event%d", ioc->id);
6542 ioc->firmware_event_thread = create_singlethread_workqueue(
6543 ioc->firmware_event_name);
6544 if (!ioc->firmware_event_thread) {
6545 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6546 ioc->name, __FILE__, __LINE__, __func__);
6547 goto out_thread_fail;
6548 }
6549
6550 ioc->wait_for_port_enable_to_complete = 1;
6551 if ((mpt2sas_base_attach(ioc))) {
6552 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6553 ioc->name, __FILE__, __LINE__, __func__);
6554 goto out_attach_fail;
6555 }
6556
6557 ioc->wait_for_port_enable_to_complete = 0;
6558 _scsih_probe_devices(ioc);
6559 return 0;
6560
6561 out_attach_fail:
6562 destroy_workqueue(ioc->firmware_event_thread);
6563 out_thread_fail:
6564 list_del(&ioc->list);
6565 scsi_remove_host(shost);
6566 out_add_shost_fail:
6567 return -ENODEV;
6568 }
6569
6570 #ifdef CONFIG_PM
6571 /**
6572 * _scsih_suspend - power management suspend main entry point
6573 * @pdev: PCI device struct
6574 * @state: PM state change to (usually PCI_D3)
6575 *
6576 * Returns 0 success, anything else error.
6577 */
6578 static int
6579 _scsih_suspend(struct pci_dev *pdev, pm_message_t state)
6580 {
6581 struct Scsi_Host *shost = pci_get_drvdata(pdev);
6582 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
6583 u32 device_state;
6584
6585 mpt2sas_base_stop_watchdog(ioc);
6586 flush_scheduled_work();
6587 scsi_block_requests(shost);
6588 device_state = pci_choose_state(pdev, state);
6589 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, entering "
6590 "operating state [D%d]\n", ioc->name, pdev,
6591 pci_name(pdev), device_state);
6592
6593 mpt2sas_base_free_resources(ioc);
6594 pci_save_state(pdev);
6595 pci_disable_device(pdev);
6596 pci_set_power_state(pdev, device_state);
6597 return 0;
6598 }
6599
6600 /**
6601 * _scsih_resume - power management resume main entry point
6602 * @pdev: PCI device struct
6603 *
6604 * Returns 0 success, anything else error.
6605 */
6606 static int
6607 _scsih_resume(struct pci_dev *pdev)
6608 {
6609 struct Scsi_Host *shost = pci_get_drvdata(pdev);
6610 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
6611 u32 device_state = pdev->current_state;
6612 int r;
6613
6614 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, previous "
6615 "operating state [D%d]\n", ioc->name, pdev,
6616 pci_name(pdev), device_state);
6617
6618 pci_set_power_state(pdev, PCI_D0);
6619 pci_enable_wake(pdev, PCI_D0, 0);
6620 pci_restore_state(pdev);
6621 ioc->pdev = pdev;
6622 r = mpt2sas_base_map_resources(ioc);
6623 if (r)
6624 return r;
6625
6626 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, SOFT_RESET);
6627 scsi_unblock_requests(shost);
6628 mpt2sas_base_start_watchdog(ioc);
6629 return 0;
6630 }
6631 #endif /* CONFIG_PM */
6632
6633
6634 static struct pci_driver scsih_driver = {
6635 .name = MPT2SAS_DRIVER_NAME,
6636 .id_table = scsih_pci_table,
6637 .probe = _scsih_probe,
6638 .remove = __devexit_p(_scsih_remove),
6639 .shutdown = _scsih_shutdown,
6640 #ifdef CONFIG_PM
6641 .suspend = _scsih_suspend,
6642 .resume = _scsih_resume,
6643 #endif
6644 };
6645
6646 /* raid transport support */
6647 static struct raid_function_template mpt2sas_raid_functions = {
6648 .cookie = &scsih_driver_template,
6649 .is_raid = _scsih_is_raid,
6650 .get_resync = _scsih_get_resync,
6651 .get_state = _scsih_get_state,
6652 };
6653
6654 /**
6655 * _scsih_init - main entry point for this driver.
6656 *
6657 * Returns 0 success, anything else error.
6658 */
6659 static int __init
6660 _scsih_init(void)
6661 {
6662 int error;
6663
6664 mpt_ids = 0;
6665 printk(KERN_INFO "%s version %s loaded\n", MPT2SAS_DRIVER_NAME,
6666 MPT2SAS_DRIVER_VERSION);
6667
6668 mpt2sas_transport_template =
6669 sas_attach_transport(&mpt2sas_transport_functions);
6670 if (!mpt2sas_transport_template)
6671 return -ENODEV;
6672 /* raid transport support */
6673 mpt2sas_raid_template = raid_class_attach(&mpt2sas_raid_functions);
6674 if (!mpt2sas_raid_template) {
6675 sas_release_transport(mpt2sas_transport_template);
6676 return -ENODEV;
6677 }
6678
6679 mpt2sas_base_initialize_callback_handler();
6680
6681 /* queuecommand callback hander */
6682 scsi_io_cb_idx = mpt2sas_base_register_callback_handler(_scsih_io_done);
6683
6684 /* task managment callback handler */
6685 tm_cb_idx = mpt2sas_base_register_callback_handler(_scsih_tm_done);
6686
6687 /* base internal commands callback handler */
6688 base_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_base_done);
6689
6690 /* transport internal commands callback handler */
6691 transport_cb_idx = mpt2sas_base_register_callback_handler(
6692 mpt2sas_transport_done);
6693
6694 /* scsih internal commands callback handler */
6695 scsih_cb_idx = mpt2sas_base_register_callback_handler(_scsih_done);
6696
6697 /* configuration page API internal commands callback handler */
6698 config_cb_idx = mpt2sas_base_register_callback_handler(
6699 mpt2sas_config_done);
6700
6701 /* ctl module callback handler */
6702 ctl_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_ctl_done);
6703
6704 tm_tr_cb_idx = mpt2sas_base_register_callback_handler(
6705 _scsih_tm_tr_complete);
6706 tm_sas_control_cb_idx = mpt2sas_base_register_callback_handler(
6707 _scsih_sas_control_complete);
6708
6709 mpt2sas_ctl_init();
6710
6711 error = pci_register_driver(&scsih_driver);
6712 if (error) {
6713 /* raid transport support */
6714 raid_class_release(mpt2sas_raid_template);
6715 sas_release_transport(mpt2sas_transport_template);
6716 }
6717
6718 return error;
6719 }
6720
6721 /**
6722 * _scsih_exit - exit point for this driver (when it is a module).
6723 *
6724 * Returns 0 success, anything else error.
6725 */
6726 static void __exit
6727 _scsih_exit(void)
6728 {
6729 printk(KERN_INFO "mpt2sas version %s unloading\n",
6730 MPT2SAS_DRIVER_VERSION);
6731
6732 pci_unregister_driver(&scsih_driver);
6733
6734 mpt2sas_ctl_exit();
6735
6736 mpt2sas_base_release_callback_handler(scsi_io_cb_idx);
6737 mpt2sas_base_release_callback_handler(tm_cb_idx);
6738 mpt2sas_base_release_callback_handler(base_cb_idx);
6739 mpt2sas_base_release_callback_handler(transport_cb_idx);
6740 mpt2sas_base_release_callback_handler(scsih_cb_idx);
6741 mpt2sas_base_release_callback_handler(config_cb_idx);
6742 mpt2sas_base_release_callback_handler(ctl_cb_idx);
6743
6744 mpt2sas_base_release_callback_handler(tm_tr_cb_idx);
6745 mpt2sas_base_release_callback_handler(tm_sas_control_cb_idx);
6746
6747 /* raid transport support */
6748 raid_class_release(mpt2sas_raid_template);
6749 sas_release_transport(mpt2sas_transport_template);
6750
6751 }
6752
6753 module_init(_scsih_init);
6754 module_exit(_scsih_exit);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree