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Diffstat (limited to 'drivers/scsi/mpt2sas/mpt2sas_scsih.c')
-rw-r--r--drivers/scsi/mpt2sas/mpt2sas_scsih.c5963
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diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
new file mode 100644
index 000000000000..2e9a4445596f
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+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -0,0 +1,5963 @@
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) 2007-2008 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
56#include "mpt2sas_base.h"
57
58MODULE_AUTHOR(MPT2SAS_AUTHOR);
59MODULE_DESCRIPTION(MPT2SAS_DESCRIPTION);
60MODULE_LICENSE("GPL");
61MODULE_VERSION(MPT2SAS_DRIVER_VERSION);
62
63#define RAID_CHANNEL 1
64
65/* forward proto's */
66static void _scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
67 struct _sas_node *sas_expander);
68static void _firmware_event_work(struct work_struct *work);
69
70/* global parameters */
71LIST_HEAD(mpt2sas_ioc_list);
72
73/* local parameters */
74static u8 scsi_io_cb_idx = -1;
75static u8 tm_cb_idx = -1;
76static u8 ctl_cb_idx = -1;
77static u8 base_cb_idx = -1;
78static u8 transport_cb_idx = -1;
79static u8 config_cb_idx = -1;
80static int mpt_ids;
81
82/* command line options */
83static u32 logging_level;
84MODULE_PARM_DESC(logging_level, " bits for enabling additional logging info "
85 "(default=0)");
86
87/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
88#define MPT2SAS_MAX_LUN (16895)
89static int max_lun = MPT2SAS_MAX_LUN;
90module_param(max_lun, int, 0);
91MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
92
93/**
94 * struct sense_info - common structure for obtaining sense keys
95 * @skey: sense key
96 * @asc: additional sense code
97 * @ascq: additional sense code qualifier
98 */
99struct sense_info {
100 u8 skey;
101 u8 asc;
102 u8 ascq;
103};
104
105
106#define MPT2SAS_RESCAN_AFTER_HOST_RESET (0xFFFF)
107/**
108 * struct fw_event_work - firmware event struct
109 * @list: link list framework
110 * @work: work object (ioc->fault_reset_work_q)
111 * @ioc: per adapter object
112 * @VF_ID: virtual function id
113 * @host_reset_handling: handling events during host reset
114 * @ignore: flag meaning this event has been marked to ignore
115 * @event: firmware event MPI2_EVENT_XXX defined in mpt2_ioc.h
116 * @event_data: reply event data payload follows
117 *
118 * This object stored on ioc->fw_event_list.
119 */
120struct fw_event_work {
121 struct list_head list;
122 struct work_struct work;
123 struct MPT2SAS_ADAPTER *ioc;
124 u8 VF_ID;
125 u8 host_reset_handling;
126 u8 ignore;
127 u16 event;
128 void *event_data;
129};
130
131/**
132 * struct _scsi_io_transfer - scsi io transfer
133 * @handle: sas device handle (assigned by firmware)
134 * @is_raid: flag set for hidden raid components
135 * @dir: DMA_TO_DEVICE, DMA_FROM_DEVICE,
136 * @data_length: data transfer length
137 * @data_dma: dma pointer to data
138 * @sense: sense data
139 * @lun: lun number
140 * @cdb_length: cdb length
141 * @cdb: cdb contents
142 * @valid_reply: flag set for reply message
143 * @timeout: timeout for this command
144 * @sense_length: sense length
145 * @ioc_status: ioc status
146 * @scsi_state: scsi state
147 * @scsi_status: scsi staus
148 * @log_info: log information
149 * @transfer_length: data length transfer when there is a reply message
150 *
151 * Used for sending internal scsi commands to devices within this module.
152 * Refer to _scsi_send_scsi_io().
153 */
154struct _scsi_io_transfer {
155 u16 handle;
156 u8 is_raid;
157 enum dma_data_direction dir;
158 u32 data_length;
159 dma_addr_t data_dma;
160 u8 sense[SCSI_SENSE_BUFFERSIZE];
161 u32 lun;
162 u8 cdb_length;
163 u8 cdb[32];
164 u8 timeout;
165 u8 valid_reply;
166 /* the following bits are only valid when 'valid_reply = 1' */
167 u32 sense_length;
168 u16 ioc_status;
169 u8 scsi_state;
170 u8 scsi_status;
171 u32 log_info;
172 u32 transfer_length;
173};
174
175/*
176 * The pci device ids are defined in mpi/mpi2_cnfg.h.
177 */
178static struct pci_device_id scsih_pci_table[] = {
179 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004,
180 PCI_ANY_ID, PCI_ANY_ID },
181 /* Falcon ~ 2008*/
182 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2008,
183 PCI_ANY_ID, PCI_ANY_ID },
184 /* Liberator ~ 2108 */
185 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_1,
186 PCI_ANY_ID, PCI_ANY_ID },
187 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_2,
188 PCI_ANY_ID, PCI_ANY_ID },
189 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_3,
190 PCI_ANY_ID, PCI_ANY_ID },
191 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_1,
192 PCI_ANY_ID, PCI_ANY_ID },
193 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2,
194 PCI_ANY_ID, PCI_ANY_ID },
195 {0} /* Terminating entry */
196};
197MODULE_DEVICE_TABLE(pci, scsih_pci_table);
198
199/**
200 * _scsih_set_debug_level - global setting of ioc->logging_level.
201 *
202 * Note: The logging levels are defined in mpt2sas_debug.h.
203 */
204static int
205_scsih_set_debug_level(const char *val, struct kernel_param *kp)
206{
207 int ret = param_set_int(val, kp);
208 struct MPT2SAS_ADAPTER *ioc;
209
210 if (ret)
211 return ret;
212
213 printk(KERN_INFO "setting logging_level(0x%08x)\n", logging_level);
214 list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
215 ioc->logging_level = logging_level;
216 return 0;
217}
218module_param_call(logging_level, _scsih_set_debug_level, param_get_int,
219 &logging_level, 0644);
220
221/**
222 * _scsih_srch_boot_sas_address - search based on sas_address
223 * @sas_address: sas address
224 * @boot_device: boot device object from bios page 2
225 *
226 * Returns 1 when there's a match, 0 means no match.
227 */
228static inline int
229_scsih_srch_boot_sas_address(u64 sas_address,
230 Mpi2BootDeviceSasWwid_t *boot_device)
231{
232 return (sas_address == le64_to_cpu(boot_device->SASAddress)) ? 1 : 0;
233}
234
235/**
236 * _scsih_srch_boot_device_name - search based on device name
237 * @device_name: device name specified in INDENTIFY fram
238 * @boot_device: boot device object from bios page 2
239 *
240 * Returns 1 when there's a match, 0 means no match.
241 */
242static inline int
243_scsih_srch_boot_device_name(u64 device_name,
244 Mpi2BootDeviceDeviceName_t *boot_device)
245{
246 return (device_name == le64_to_cpu(boot_device->DeviceName)) ? 1 : 0;
247}
248
249/**
250 * _scsih_srch_boot_encl_slot - search based on enclosure_logical_id/slot
251 * @enclosure_logical_id: enclosure logical id
252 * @slot_number: slot number
253 * @boot_device: boot device object from bios page 2
254 *
255 * Returns 1 when there's a match, 0 means no match.
256 */
257static inline int
258_scsih_srch_boot_encl_slot(u64 enclosure_logical_id, u16 slot_number,
259 Mpi2BootDeviceEnclosureSlot_t *boot_device)
260{
261 return (enclosure_logical_id == le64_to_cpu(boot_device->
262 EnclosureLogicalID) && slot_number == le16_to_cpu(boot_device->
263 SlotNumber)) ? 1 : 0;
264}
265
266/**
267 * _scsih_is_boot_device - search for matching boot device.
268 * @sas_address: sas address
269 * @device_name: device name specified in INDENTIFY fram
270 * @enclosure_logical_id: enclosure logical id
271 * @slot_number: slot number
272 * @form: specifies boot device form
273 * @boot_device: boot device object from bios page 2
274 *
275 * Returns 1 when there's a match, 0 means no match.
276 */
277static int
278_scsih_is_boot_device(u64 sas_address, u64 device_name,
279 u64 enclosure_logical_id, u16 slot, u8 form,
280 Mpi2BiosPage2BootDevice_t *boot_device)
281{
282 int rc = 0;
283
284 switch (form) {
285 case MPI2_BIOSPAGE2_FORM_SAS_WWID:
286 if (!sas_address)
287 break;
288 rc = _scsih_srch_boot_sas_address(
289 sas_address, &boot_device->SasWwid);
290 break;
291 case MPI2_BIOSPAGE2_FORM_ENCLOSURE_SLOT:
292 if (!enclosure_logical_id)
293 break;
294 rc = _scsih_srch_boot_encl_slot(
295 enclosure_logical_id,
296 slot, &boot_device->EnclosureSlot);
297 break;
298 case MPI2_BIOSPAGE2_FORM_DEVICE_NAME:
299 if (!device_name)
300 break;
301 rc = _scsih_srch_boot_device_name(
302 device_name, &boot_device->DeviceName);
303 break;
304 case MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED:
305 break;
306 }
307
308 return rc;
309}
310
311/**
312 * _scsih_determine_boot_device - determine boot device.
313 * @ioc: per adapter object
314 * @device: either sas_device or raid_device object
315 * @is_raid: [flag] 1 = raid object, 0 = sas object
316 *
317 * Determines whether this device should be first reported device to
318 * to scsi-ml or sas transport, this purpose is for persistant boot device.
319 * There are primary, alternate, and current entries in bios page 2. The order
320 * priority is primary, alternate, then current. This routine saves
321 * the corresponding device object and is_raid flag in the ioc object.
322 * The saved data to be used later in _scsih_probe_boot_devices().
323 */
324static void
325_scsih_determine_boot_device(struct MPT2SAS_ADAPTER *ioc,
326 void *device, u8 is_raid)
327{
328 struct _sas_device *sas_device;
329 struct _raid_device *raid_device;
330 u64 sas_address;
331 u64 device_name;
332 u64 enclosure_logical_id;
333 u16 slot;
334
335 /* only process this function when driver loads */
336 if (!ioc->wait_for_port_enable_to_complete)
337 return;
338
339 if (!is_raid) {
340 sas_device = device;
341 sas_address = sas_device->sas_address;
342 device_name = sas_device->device_name;
343 enclosure_logical_id = sas_device->enclosure_logical_id;
344 slot = sas_device->slot;
345 } else {
346 raid_device = device;
347 sas_address = raid_device->wwid;
348 device_name = 0;
349 enclosure_logical_id = 0;
350 slot = 0;
351 }
352
353 if (!ioc->req_boot_device.device) {
354 if (_scsih_is_boot_device(sas_address, device_name,
355 enclosure_logical_id, slot,
356 (ioc->bios_pg2.ReqBootDeviceForm &
357 MPI2_BIOSPAGE2_FORM_MASK),
358 &ioc->bios_pg2.RequestedBootDevice)) {
359 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
360 "%s: req_boot_device(0x%016llx)\n",
361 ioc->name, __func__,
362 (unsigned long long)sas_address));
363 ioc->req_boot_device.device = device;
364 ioc->req_boot_device.is_raid = is_raid;
365 }
366 }
367
368 if (!ioc->req_alt_boot_device.device) {
369 if (_scsih_is_boot_device(sas_address, device_name,
370 enclosure_logical_id, slot,
371 (ioc->bios_pg2.ReqAltBootDeviceForm &
372 MPI2_BIOSPAGE2_FORM_MASK),
373 &ioc->bios_pg2.RequestedAltBootDevice)) {
374 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
375 "%s: req_alt_boot_device(0x%016llx)\n",
376 ioc->name, __func__,
377 (unsigned long long)sas_address));
378 ioc->req_alt_boot_device.device = device;
379 ioc->req_alt_boot_device.is_raid = is_raid;
380 }
381 }
382
383 if (!ioc->current_boot_device.device) {
384 if (_scsih_is_boot_device(sas_address, device_name,
385 enclosure_logical_id, slot,
386 (ioc->bios_pg2.CurrentBootDeviceForm &
387 MPI2_BIOSPAGE2_FORM_MASK),
388 &ioc->bios_pg2.CurrentBootDevice)) {
389 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
390 "%s: current_boot_device(0x%016llx)\n",
391 ioc->name, __func__,
392 (unsigned long long)sas_address));
393 ioc->current_boot_device.device = device;
394 ioc->current_boot_device.is_raid = is_raid;
395 }
396 }
397}
398
399/**
400 * mpt2sas_scsih_sas_device_find_by_sas_address - sas device search
401 * @ioc: per adapter object
402 * @sas_address: sas address
403 * Context: Calling function should acquire ioc->sas_device_lock
404 *
405 * This searches for sas_device based on sas_address, then return sas_device
406 * object.
407 */
408struct _sas_device *
409mpt2sas_scsih_sas_device_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
410 u64 sas_address)
411{
412 struct _sas_device *sas_device, *r;
413
414 r = NULL;
415 /* check the sas_device_init_list */
416 list_for_each_entry(sas_device, &ioc->sas_device_init_list,
417 list) {
418 if (sas_device->sas_address != sas_address)
419 continue;
420 r = sas_device;
421 goto out;
422 }
423
424 /* then check the sas_device_list */
425 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
426 if (sas_device->sas_address != sas_address)
427 continue;
428 r = sas_device;
429 goto out;
430 }
431 out:
432 return r;
433}
434
435/**
436 * _scsih_sas_device_find_by_handle - sas device search
437 * @ioc: per adapter object
438 * @handle: sas device handle (assigned by firmware)
439 * Context: Calling function should acquire ioc->sas_device_lock
440 *
441 * This searches for sas_device based on sas_address, then return sas_device
442 * object.
443 */
444static struct _sas_device *
445_scsih_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
446{
447 struct _sas_device *sas_device, *r;
448
449 r = NULL;
450 if (ioc->wait_for_port_enable_to_complete) {
451 list_for_each_entry(sas_device, &ioc->sas_device_init_list,
452 list) {
453 if (sas_device->handle != handle)
454 continue;
455 r = sas_device;
456 goto out;
457 }
458 } else {
459 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
460 if (sas_device->handle != handle)
461 continue;
462 r = sas_device;
463 goto out;
464 }
465 }
466
467 out:
468 return r;
469}
470
471/**
472 * _scsih_sas_device_remove - remove sas_device from list.
473 * @ioc: per adapter object
474 * @sas_device: the sas_device object
475 * Context: This function will acquire ioc->sas_device_lock.
476 *
477 * Removing object and freeing associated memory from the ioc->sas_device_list.
478 */
479static void
480_scsih_sas_device_remove(struct MPT2SAS_ADAPTER *ioc,
481 struct _sas_device *sas_device)
482{
483 unsigned long flags;
484
485 spin_lock_irqsave(&ioc->sas_device_lock, flags);
486 list_del(&sas_device->list);
487 memset(sas_device, 0, sizeof(struct _sas_device));
488 kfree(sas_device);
489 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
490}
491
492/**
493 * _scsih_sas_device_add - insert sas_device to the list.
494 * @ioc: per adapter object
495 * @sas_device: the sas_device object
496 * Context: This function will acquire ioc->sas_device_lock.
497 *
498 * Adding new object to the ioc->sas_device_list.
499 */
500static void
501_scsih_sas_device_add(struct MPT2SAS_ADAPTER *ioc,
502 struct _sas_device *sas_device)
503{
504 unsigned long flags;
505 u16 handle, parent_handle;
506 u64 sas_address;
507
508 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
509 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
510 sas_device->handle, (unsigned long long)sas_device->sas_address));
511
512 spin_lock_irqsave(&ioc->sas_device_lock, flags);
513 list_add_tail(&sas_device->list, &ioc->sas_device_list);
514 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
515
516 handle = sas_device->handle;
517 parent_handle = sas_device->parent_handle;
518 sas_address = sas_device->sas_address;
519 if (!mpt2sas_transport_port_add(ioc, handle, parent_handle))
520 _scsih_sas_device_remove(ioc, sas_device);
521}
522
523/**
524 * _scsih_sas_device_init_add - insert sas_device to the list.
525 * @ioc: per adapter object
526 * @sas_device: the sas_device object
527 * Context: This function will acquire ioc->sas_device_lock.
528 *
529 * Adding new object at driver load time to the ioc->sas_device_init_list.
530 */
531static void
532_scsih_sas_device_init_add(struct MPT2SAS_ADAPTER *ioc,
533 struct _sas_device *sas_device)
534{
535 unsigned long flags;
536
537 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
538 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
539 sas_device->handle, (unsigned long long)sas_device->sas_address));
540
541 spin_lock_irqsave(&ioc->sas_device_lock, flags);
542 list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
543 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
544 _scsih_determine_boot_device(ioc, sas_device, 0);
545}
546
547/**
548 * mpt2sas_scsih_expander_find_by_handle - expander device search
549 * @ioc: per adapter object
550 * @handle: expander handle (assigned by firmware)
551 * Context: Calling function should acquire ioc->sas_device_lock
552 *
553 * This searches for expander device based on handle, then returns the
554 * sas_node object.
555 */
556struct _sas_node *
557mpt2sas_scsih_expander_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
558{
559 struct _sas_node *sas_expander, *r;
560
561 r = NULL;
562 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
563 if (sas_expander->handle != handle)
564 continue;
565 r = sas_expander;
566 goto out;
567 }
568 out:
569 return r;
570}
571
572/**
573 * _scsih_raid_device_find_by_id - raid device search
574 * @ioc: per adapter object
575 * @id: sas device target id
576 * @channel: sas device channel
577 * Context: Calling function should acquire ioc->raid_device_lock
578 *
579 * This searches for raid_device based on target id, then return raid_device
580 * object.
581 */
582static struct _raid_device *
583_scsih_raid_device_find_by_id(struct MPT2SAS_ADAPTER *ioc, int id, int channel)
584{
585 struct _raid_device *raid_device, *r;
586
587 r = NULL;
588 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
589 if (raid_device->id == id && raid_device->channel == channel) {
590 r = raid_device;
591 goto out;
592 }
593 }
594
595 out:
596 return r;
597}
598
599/**
600 * _scsih_raid_device_find_by_handle - raid device search
601 * @ioc: per adapter object
602 * @handle: sas device handle (assigned by firmware)
603 * Context: Calling function should acquire ioc->raid_device_lock
604 *
605 * This searches for raid_device based on handle, then return raid_device
606 * object.
607 */
608static struct _raid_device *
609_scsih_raid_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
610{
611 struct _raid_device *raid_device, *r;
612
613 r = NULL;
614 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
615 if (raid_device->handle != handle)
616 continue;
617 r = raid_device;
618 goto out;
619 }
620
621 out:
622 return r;
623}
624
625/**
626 * _scsih_raid_device_find_by_wwid - raid device search
627 * @ioc: per adapter object
628 * @handle: sas device handle (assigned by firmware)
629 * Context: Calling function should acquire ioc->raid_device_lock
630 *
631 * This searches for raid_device based on wwid, then return raid_device
632 * object.
633 */
634static struct _raid_device *
635_scsih_raid_device_find_by_wwid(struct MPT2SAS_ADAPTER *ioc, u64 wwid)
636{
637 struct _raid_device *raid_device, *r;
638
639 r = NULL;
640 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
641 if (raid_device->wwid != wwid)
642 continue;
643 r = raid_device;
644 goto out;
645 }
646
647 out:
648 return r;
649}
650
651/**
652 * _scsih_raid_device_add - add raid_device object
653 * @ioc: per adapter object
654 * @raid_device: raid_device object
655 *
656 * This is added to the raid_device_list link list.
657 */
658static void
659_scsih_raid_device_add(struct MPT2SAS_ADAPTER *ioc,
660 struct _raid_device *raid_device)
661{
662 unsigned long flags;
663
664 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
665 "(0x%04x), wwid(0x%016llx)\n", ioc->name, __func__,
666 raid_device->handle, (unsigned long long)raid_device->wwid));
667
668 spin_lock_irqsave(&ioc->raid_device_lock, flags);
669 list_add_tail(&raid_device->list, &ioc->raid_device_list);
670 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
671}
672
673/**
674 * _scsih_raid_device_remove - delete raid_device object
675 * @ioc: per adapter object
676 * @raid_device: raid_device object
677 *
678 * This is removed from the raid_device_list link list.
679 */
680static void
681_scsih_raid_device_remove(struct MPT2SAS_ADAPTER *ioc,
682 struct _raid_device *raid_device)
683{
684 unsigned long flags;
685
686 spin_lock_irqsave(&ioc->raid_device_lock, flags);
687 list_del(&raid_device->list);
688 memset(raid_device, 0, sizeof(struct _raid_device));
689 kfree(raid_device);
690 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
691}
692
693/**
694 * mpt2sas_scsih_expander_find_by_sas_address - expander device search
695 * @ioc: per adapter object
696 * @sas_address: sas address
697 * Context: Calling function should acquire ioc->sas_node_lock.
698 *
699 * This searches for expander device based on sas_address, then returns the
700 * sas_node object.
701 */
702struct _sas_node *
703mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
704 u64 sas_address)
705{
706 struct _sas_node *sas_expander, *r;
707
708 r = NULL;
709 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
710 if (sas_expander->sas_address != sas_address)
711 continue;
712 r = sas_expander;
713 goto out;
714 }
715 out:
716 return r;
717}
718
719/**
720 * _scsih_expander_node_add - insert expander device to the list.
721 * @ioc: per adapter object
722 * @sas_expander: the sas_device object
723 * Context: This function will acquire ioc->sas_node_lock.
724 *
725 * Adding new object to the ioc->sas_expander_list.
726 *
727 * Return nothing.
728 */
729static void
730_scsih_expander_node_add(struct MPT2SAS_ADAPTER *ioc,
731 struct _sas_node *sas_expander)
732{
733 unsigned long flags;
734
735 spin_lock_irqsave(&ioc->sas_node_lock, flags);
736 list_add_tail(&sas_expander->list, &ioc->sas_expander_list);
737 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
738}
739
740/**
741 * _scsih_is_end_device - determines if device is an end device
742 * @device_info: bitfield providing information about the device.
743 * Context: none
744 *
745 * Returns 1 if end device.
746 */
747static int
748_scsih_is_end_device(u32 device_info)
749{
750 if (device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE &&
751 ((device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) |
752 (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) |
753 (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))
754 return 1;
755 else
756 return 0;
757}
758
759/**
760 * _scsih_scsi_lookup_get - returns scmd entry
761 * @ioc: per adapter object
762 * @smid: system request message index
763 * Context: This function will acquire ioc->scsi_lookup_lock.
764 *
765 * Returns the smid stored scmd pointer.
766 */
767static struct scsi_cmnd *
768_scsih_scsi_lookup_get(struct MPT2SAS_ADAPTER *ioc, u16 smid)
769{
770 unsigned long flags;
771 struct scsi_cmnd *scmd;
772
773 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
774 scmd = ioc->scsi_lookup[smid - 1].scmd;
775 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
776 return scmd;
777}
778
779/**
780 * mptscsih_getclear_scsi_lookup - returns scmd entry
781 * @ioc: per adapter object
782 * @smid: system request message index
783 * Context: This function will acquire ioc->scsi_lookup_lock.
784 *
785 * Returns the smid stored scmd pointer, as well as clearing the scmd pointer.
786 */
787static struct scsi_cmnd *
788_scsih_scsi_lookup_getclear(struct MPT2SAS_ADAPTER *ioc, u16 smid)
789{
790 unsigned long flags;
791 struct scsi_cmnd *scmd;
792
793 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
794 scmd = ioc->scsi_lookup[smid - 1].scmd;
795 ioc->scsi_lookup[smid - 1].scmd = NULL;
796 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
797 return scmd;
798}
799
800/**
801 * _scsih_scsi_lookup_set - updates scmd entry in lookup
802 * @ioc: per adapter object
803 * @smid: system request message index
804 * @scmd: pointer to scsi command object
805 * Context: This function will acquire ioc->scsi_lookup_lock.
806 *
807 * This will save scmd pointer in the scsi_lookup array.
808 *
809 * Return nothing.
810 */
811static void
812_scsih_scsi_lookup_set(struct MPT2SAS_ADAPTER *ioc, u16 smid,
813 struct scsi_cmnd *scmd)
814{
815 unsigned long flags;
816
817 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
818 ioc->scsi_lookup[smid - 1].scmd = scmd;
819 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
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 */
832static 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->request_depth; i++) {
843 if (ioc->scsi_lookup[i].scmd == scmd) {
844 smid = i + 1;
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 */
863static 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->request_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 */
897static 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->request_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 */
928static 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 */
942static 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 */
961static 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 u32 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) {
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 *
1089 * Returns queue depth.
1090 */
1091static int
1092_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
1093{
1094 struct Scsi_Host *shost = sdev->host;
1095 int max_depth;
1096 int tag_type;
1097
1098 max_depth = shost->can_queue;
1099 if (!sdev->tagged_supported)
1100 max_depth = 1;
1101 if (qdepth > max_depth)
1102 qdepth = max_depth;
1103 tag_type = (qdepth == 1) ? 0 : MSG_SIMPLE_TAG;
1104 scsi_adjust_queue_depth(sdev, tag_type, qdepth);
1105
1106 if (sdev->inquiry_len > 7)
1107 sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), "
1108 "simple(%d), ordered(%d), scsi_level(%d), cmd_que(%d)\n",
1109 sdev->queue_depth, sdev->tagged_supported, sdev->simple_tags,
1110 sdev->ordered_tags, sdev->scsi_level,
1111 (sdev->inquiry[7] & 2) >> 1);
1112
1113 return sdev->queue_depth;
1114}
1115
1116/**
1117 * _scsih_change_queue_depth - changing device queue tag type
1118 * @sdev: scsi device struct
1119 * @tag_type: requested tag type
1120 *
1121 * Returns queue tag type.
1122 */
1123static int
1124_scsih_change_queue_type(struct scsi_device *sdev, int tag_type)
1125{
1126 if (sdev->tagged_supported) {
1127 scsi_set_tag_type(sdev, tag_type);
1128 if (tag_type)
1129 scsi_activate_tcq(sdev, sdev->queue_depth);
1130 else
1131 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1132 } else
1133 tag_type = 0;
1134
1135 return tag_type;
1136}
1137
1138/**
1139 * _scsih_target_alloc - target add routine
1140 * @starget: scsi target struct
1141 *
1142 * Returns 0 if ok. Any other return is assumed to be an error and
1143 * the device is ignored.
1144 */
1145static int
1146_scsih_target_alloc(struct scsi_target *starget)
1147{
1148 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1149 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1150 struct MPT2SAS_TARGET *sas_target_priv_data;
1151 struct _sas_device *sas_device;
1152 struct _raid_device *raid_device;
1153 unsigned long flags;
1154 struct sas_rphy *rphy;
1155
1156 sas_target_priv_data = kzalloc(sizeof(struct scsi_target), GFP_KERNEL);
1157 if (!sas_target_priv_data)
1158 return -ENOMEM;
1159
1160 starget->hostdata = sas_target_priv_data;
1161 sas_target_priv_data->starget = starget;
1162 sas_target_priv_data->handle = MPT2SAS_INVALID_DEVICE_HANDLE;
1163
1164 /* RAID volumes */
1165 if (starget->channel == RAID_CHANNEL) {
1166 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1167 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1168 starget->channel);
1169 if (raid_device) {
1170 sas_target_priv_data->handle = raid_device->handle;
1171 sas_target_priv_data->sas_address = raid_device->wwid;
1172 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME;
1173 raid_device->starget = starget;
1174 }
1175 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1176 return 0;
1177 }
1178
1179 /* sas/sata devices */
1180 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1181 rphy = dev_to_rphy(starget->dev.parent);
1182 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1183 rphy->identify.sas_address);
1184
1185 if (sas_device) {
1186 sas_target_priv_data->handle = sas_device->handle;
1187 sas_target_priv_data->sas_address = sas_device->sas_address;
1188 sas_device->starget = starget;
1189 sas_device->id = starget->id;
1190 sas_device->channel = starget->channel;
1191 if (sas_device->hidden_raid_component)
1192 sas_target_priv_data->flags |=
1193 MPT_TARGET_FLAGS_RAID_COMPONENT;
1194 }
1195 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1196
1197 return 0;
1198}
1199
1200/**
1201 * _scsih_target_destroy - target destroy routine
1202 * @starget: scsi target struct
1203 *
1204 * Returns nothing.
1205 */
1206static void
1207_scsih_target_destroy(struct scsi_target *starget)
1208{
1209 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1210 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1211 struct MPT2SAS_TARGET *sas_target_priv_data;
1212 struct _sas_device *sas_device;
1213 struct _raid_device *raid_device;
1214 unsigned long flags;
1215 struct sas_rphy *rphy;
1216
1217 sas_target_priv_data = starget->hostdata;
1218 if (!sas_target_priv_data)
1219 return;
1220
1221 if (starget->channel == RAID_CHANNEL) {
1222 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1223 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1224 starget->channel);
1225 if (raid_device) {
1226 raid_device->starget = NULL;
1227 raid_device->sdev = NULL;
1228 }
1229 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1230 goto out;
1231 }
1232
1233 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1234 rphy = dev_to_rphy(starget->dev.parent);
1235 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1236 rphy->identify.sas_address);
1237 if (sas_device && (sas_device->starget == starget) &&
1238 (sas_device->id == starget->id) &&
1239 (sas_device->channel == starget->channel))
1240 sas_device->starget = NULL;
1241
1242 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1243
1244 out:
1245 kfree(sas_target_priv_data);
1246 starget->hostdata = NULL;
1247}
1248
1249/**
1250 * _scsih_slave_alloc - device add routine
1251 * @sdev: scsi device struct
1252 *
1253 * Returns 0 if ok. Any other return is assumed to be an error and
1254 * the device is ignored.
1255 */
1256static int
1257_scsih_slave_alloc(struct scsi_device *sdev)
1258{
1259 struct Scsi_Host *shost;
1260 struct MPT2SAS_ADAPTER *ioc;
1261 struct MPT2SAS_TARGET *sas_target_priv_data;
1262 struct MPT2SAS_DEVICE *sas_device_priv_data;
1263 struct scsi_target *starget;
1264 struct _raid_device *raid_device;
1265 struct _sas_device *sas_device;
1266 unsigned long flags;
1267
1268 sas_device_priv_data = kzalloc(sizeof(struct scsi_device), GFP_KERNEL);
1269 if (!sas_device_priv_data)
1270 return -ENOMEM;
1271
1272 sas_device_priv_data->lun = sdev->lun;
1273 sas_device_priv_data->flags = MPT_DEVICE_FLAGS_INIT;
1274
1275 starget = scsi_target(sdev);
1276 sas_target_priv_data = starget->hostdata;
1277 sas_target_priv_data->num_luns++;
1278 sas_device_priv_data->sas_target = sas_target_priv_data;
1279 sdev->hostdata = sas_device_priv_data;
1280 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT))
1281 sdev->no_uld_attach = 1;
1282
1283 shost = dev_to_shost(&starget->dev);
1284 ioc = shost_priv(shost);
1285 if (starget->channel == RAID_CHANNEL) {
1286 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1287 raid_device = _scsih_raid_device_find_by_id(ioc,
1288 starget->id, starget->channel);
1289 if (raid_device)
1290 raid_device->sdev = sdev; /* raid is single lun */
1291 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1292 } else {
1293 /* set TLR bit for SSP devices */
1294 if (!(ioc->facts.IOCCapabilities &
1295 MPI2_IOCFACTS_CAPABILITY_TLR))
1296 goto out;
1297 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1298 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1299 sas_device_priv_data->sas_target->sas_address);
1300 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1301 if (sas_device && sas_device->device_info &
1302 MPI2_SAS_DEVICE_INFO_SSP_TARGET)
1303 sas_device_priv_data->flags |= MPT_DEVICE_TLR_ON;
1304 }
1305
1306 out:
1307 return 0;
1308}
1309
1310/**
1311 * _scsih_slave_destroy - device destroy routine
1312 * @sdev: scsi device struct
1313 *
1314 * Returns nothing.
1315 */
1316static void
1317_scsih_slave_destroy(struct scsi_device *sdev)
1318{
1319 struct MPT2SAS_TARGET *sas_target_priv_data;
1320 struct scsi_target *starget;
1321
1322 if (!sdev->hostdata)
1323 return;
1324
1325 starget = scsi_target(sdev);
1326 sas_target_priv_data = starget->hostdata;
1327 sas_target_priv_data->num_luns--;
1328 kfree(sdev->hostdata);
1329 sdev->hostdata = NULL;
1330}
1331
1332/**
1333 * _scsih_display_sata_capabilities - sata capabilities
1334 * @ioc: per adapter object
1335 * @sas_device: the sas_device object
1336 * @sdev: scsi device struct
1337 */
1338static void
1339_scsih_display_sata_capabilities(struct MPT2SAS_ADAPTER *ioc,
1340 struct _sas_device *sas_device, struct scsi_device *sdev)
1341{
1342 Mpi2ConfigReply_t mpi_reply;
1343 Mpi2SasDevicePage0_t sas_device_pg0;
1344 u32 ioc_status;
1345 u16 flags;
1346 u32 device_info;
1347
1348 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
1349 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, sas_device->handle))) {
1350 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1351 ioc->name, __FILE__, __LINE__, __func__);
1352 return;
1353 }
1354
1355 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1356 MPI2_IOCSTATUS_MASK;
1357 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
1358 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1359 ioc->name, __FILE__, __LINE__, __func__);
1360 return;
1361 }
1362
1363 flags = le16_to_cpu(sas_device_pg0.Flags);
1364 device_info = le16_to_cpu(sas_device_pg0.DeviceInfo);
1365
1366 sdev_printk(KERN_INFO, sdev,
1367 "atapi(%s), ncq(%s), asyn_notify(%s), smart(%s), fua(%s), "
1368 "sw_preserve(%s)\n",
1369 (device_info & MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? "y" : "n",
1370 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED) ? "y" : "n",
1371 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY) ? "y" :
1372 "n",
1373 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SMART_SUPPORTED) ? "y" : "n",
1374 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED) ? "y" : "n",
1375 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SW_PRESERVE) ? "y" : "n");
1376}
1377
1378/**
1379 * _scsih_get_volume_capabilities - volume capabilities
1380 * @ioc: per adapter object
1381 * @sas_device: the raid_device object
1382 */
1383static void
1384_scsih_get_volume_capabilities(struct MPT2SAS_ADAPTER *ioc,
1385 struct _raid_device *raid_device)
1386{
1387 Mpi2RaidVolPage0_t *vol_pg0;
1388 Mpi2RaidPhysDiskPage0_t pd_pg0;
1389 Mpi2SasDevicePage0_t sas_device_pg0;
1390 Mpi2ConfigReply_t mpi_reply;
1391 u16 sz;
1392 u8 num_pds;
1393
1394 if ((mpt2sas_config_get_number_pds(ioc, raid_device->handle,
1395 &num_pds)) || !num_pds) {
1396 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1397 ioc->name, __FILE__, __LINE__, __func__);
1398 return;
1399 }
1400
1401 raid_device->num_pds = num_pds;
1402 sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
1403 sizeof(Mpi2RaidVol0PhysDisk_t));
1404 vol_pg0 = kzalloc(sz, GFP_KERNEL);
1405 if (!vol_pg0) {
1406 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1407 ioc->name, __FILE__, __LINE__, __func__);
1408 return;
1409 }
1410
1411 if ((mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
1412 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
1413 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1414 ioc->name, __FILE__, __LINE__, __func__);
1415 kfree(vol_pg0);
1416 return;
1417 }
1418
1419 raid_device->volume_type = vol_pg0->VolumeType;
1420
1421 /* figure out what the underlying devices are by
1422 * obtaining the device_info bits for the 1st device
1423 */
1424 if (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
1425 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
1426 vol_pg0->PhysDisk[0].PhysDiskNum))) {
1427 if (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
1428 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
1429 le16_to_cpu(pd_pg0.DevHandle)))) {
1430 raid_device->device_info =
1431 le32_to_cpu(sas_device_pg0.DeviceInfo);
1432 }
1433 }
1434
1435 kfree(vol_pg0);
1436}
1437
1438/**
1439 * _scsih_slave_configure - device configure routine.
1440 * @sdev: scsi device struct
1441 *
1442 * Returns 0 if ok. Any other return is assumed to be an error and
1443 * the device is ignored.
1444 */
1445static int
1446_scsih_slave_configure(struct scsi_device *sdev)
1447{
1448 struct Scsi_Host *shost = sdev->host;
1449 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1450 struct MPT2SAS_DEVICE *sas_device_priv_data;
1451 struct MPT2SAS_TARGET *sas_target_priv_data;
1452 struct _sas_device *sas_device;
1453 struct _raid_device *raid_device;
1454 unsigned long flags;
1455 int qdepth;
1456 u8 ssp_target = 0;
1457 char *ds = "";
1458 char *r_level = "";
1459
1460 qdepth = 1;
1461 sas_device_priv_data = sdev->hostdata;
1462 sas_device_priv_data->configured_lun = 1;
1463 sas_device_priv_data->flags &= ~MPT_DEVICE_FLAGS_INIT;
1464 sas_target_priv_data = sas_device_priv_data->sas_target;
1465
1466 /* raid volume handling */
1467 if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME) {
1468
1469 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1470 raid_device = _scsih_raid_device_find_by_handle(ioc,
1471 sas_target_priv_data->handle);
1472 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1473 if (!raid_device) {
1474 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1475 ioc->name, __FILE__, __LINE__, __func__);
1476 return 0;
1477 }
1478
1479 _scsih_get_volume_capabilities(ioc, raid_device);
1480
1481 /* RAID Queue Depth Support
1482 * IS volume = underlying qdepth of drive type, either
1483 * MPT2SAS_SAS_QUEUE_DEPTH or MPT2SAS_SATA_QUEUE_DEPTH
1484 * IM/IME/R10 = 128 (MPT2SAS_RAID_QUEUE_DEPTH)
1485 */
1486 if (raid_device->device_info &
1487 MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
1488 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
1489 ds = "SSP";
1490 } else {
1491 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
1492 if (raid_device->device_info &
1493 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1494 ds = "SATA";
1495 else
1496 ds = "STP";
1497 }
1498
1499 switch (raid_device->volume_type) {
1500 case MPI2_RAID_VOL_TYPE_RAID0:
1501 r_level = "RAID0";
1502 break;
1503 case MPI2_RAID_VOL_TYPE_RAID1E:
1504 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1505 r_level = "RAID1E";
1506 break;
1507 case MPI2_RAID_VOL_TYPE_RAID1:
1508 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1509 r_level = "RAID1";
1510 break;
1511 case MPI2_RAID_VOL_TYPE_RAID10:
1512 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1513 r_level = "RAID10";
1514 break;
1515 case MPI2_RAID_VOL_TYPE_UNKNOWN:
1516 default:
1517 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1518 r_level = "RAIDX";
1519 break;
1520 }
1521
1522 sdev_printk(KERN_INFO, sdev, "%s: "
1523 "handle(0x%04x), wwid(0x%016llx), pd_count(%d), type(%s)\n",
1524 r_level, raid_device->handle,
1525 (unsigned long long)raid_device->wwid,
1526 raid_device->num_pds, ds);
1527 _scsih_change_queue_depth(sdev, qdepth);
1528 return 0;
1529 }
1530
1531 /* non-raid handling */
1532 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1533 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1534 sas_device_priv_data->sas_target->sas_address);
1535 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1536 if (sas_device) {
1537 if (sas_target_priv_data->flags &
1538 MPT_TARGET_FLAGS_RAID_COMPONENT) {
1539 mpt2sas_config_get_volume_handle(ioc,
1540 sas_device->handle, &sas_device->volume_handle);
1541 mpt2sas_config_get_volume_wwid(ioc,
1542 sas_device->volume_handle,
1543 &sas_device->volume_wwid);
1544 }
1545 if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
1546 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
1547 ssp_target = 1;
1548 ds = "SSP";
1549 } else {
1550 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
1551 if (sas_device->device_info &
1552 MPI2_SAS_DEVICE_INFO_STP_TARGET)
1553 ds = "STP";
1554 else if (sas_device->device_info &
1555 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1556 ds = "SATA";
1557 }
1558
1559 sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), "
1560 "sas_addr(0x%016llx), device_name(0x%016llx)\n",
1561 ds, sas_device->handle,
1562 (unsigned long long)sas_device->sas_address,
1563 (unsigned long long)sas_device->device_name);
1564 sdev_printk(KERN_INFO, sdev, "%s: "
1565 "enclosure_logical_id(0x%016llx), slot(%d)\n", ds,
1566 (unsigned long long) sas_device->enclosure_logical_id,
1567 sas_device->slot);
1568
1569 if (!ssp_target)
1570 _scsih_display_sata_capabilities(ioc, sas_device, sdev);
1571 }
1572
1573 _scsih_change_queue_depth(sdev, qdepth);
1574
1575 if (ssp_target)
1576 sas_read_port_mode_page(sdev);
1577 return 0;
1578}
1579
1580/**
1581 * _scsih_bios_param - fetch head, sector, cylinder info for a disk
1582 * @sdev: scsi device struct
1583 * @bdev: pointer to block device context
1584 * @capacity: device size (in 512 byte sectors)
1585 * @params: three element array to place output:
1586 * params[0] number of heads (max 255)
1587 * params[1] number of sectors (max 63)
1588 * params[2] number of cylinders
1589 *
1590 * Return nothing.
1591 */
1592static int
1593_scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev,
1594 sector_t capacity, int params[])
1595{
1596 int heads;
1597 int sectors;
1598 sector_t cylinders;
1599 ulong dummy;
1600
1601 heads = 64;
1602 sectors = 32;
1603
1604 dummy = heads * sectors;
1605 cylinders = capacity;
1606 sector_div(cylinders, dummy);
1607
1608 /*
1609 * Handle extended translation size for logical drives
1610 * > 1Gb
1611 */
1612 if ((ulong)capacity >= 0x200000) {
1613 heads = 255;
1614 sectors = 63;
1615 dummy = heads * sectors;
1616 cylinders = capacity;
1617 sector_div(cylinders, dummy);
1618 }
1619
1620 /* return result */
1621 params[0] = heads;
1622 params[1] = sectors;
1623 params[2] = cylinders;
1624
1625 return 0;
1626}
1627
1628/**
1629 * _scsih_response_code - translation of device response code
1630 * @ioc: per adapter object
1631 * @response_code: response code returned by the device
1632 *
1633 * Return nothing.
1634 */
1635static void
1636_scsih_response_code(struct MPT2SAS_ADAPTER *ioc, u8 response_code)
1637{
1638 char *desc;
1639
1640 switch (response_code) {
1641 case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE:
1642 desc = "task management request completed";
1643 break;
1644 case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME:
1645 desc = "invalid frame";
1646 break;
1647 case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
1648 desc = "task management request not supported";
1649 break;
1650 case MPI2_SCSITASKMGMT_RSP_TM_FAILED:
1651 desc = "task management request failed";
1652 break;
1653 case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED:
1654 desc = "task management request succeeded";
1655 break;
1656 case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN:
1657 desc = "invalid lun";
1658 break;
1659 case 0xA:
1660 desc = "overlapped tag attempted";
1661 break;
1662 case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
1663 desc = "task queued, however not sent to target";
1664 break;
1665 default:
1666 desc = "unknown";
1667 break;
1668 }
1669 printk(MPT2SAS_WARN_FMT "response_code(0x%01x): %s\n",
1670 ioc->name, response_code, desc);
1671}
1672
1673/**
1674 * _scsih_tm_done - tm completion routine
1675 * @ioc: per adapter object
1676 * @smid: system request message index
1677 * @VF_ID: virtual function id
1678 * @reply: reply message frame(lower 32bit addr)
1679 * Context: none.
1680 *
1681 * The callback handler when using scsih_issue_tm.
1682 *
1683 * Return nothing.
1684 */
1685static void
1686_scsih_tm_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply)
1687{
1688 MPI2DefaultReply_t *mpi_reply;
1689
1690 if (ioc->tm_cmds.status == MPT2_CMD_NOT_USED)
1691 return;
1692 if (ioc->tm_cmds.smid != smid)
1693 return;
1694 ioc->tm_cmds.status |= MPT2_CMD_COMPLETE;
1695 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
1696 if (mpi_reply) {
1697 memcpy(ioc->tm_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
1698 ioc->tm_cmds.status |= MPT2_CMD_REPLY_VALID;
1699 }
1700 ioc->tm_cmds.status &= ~MPT2_CMD_PENDING;
1701 complete(&ioc->tm_cmds.done);
1702}
1703
1704/**
1705 * mpt2sas_scsih_set_tm_flag - set per target tm_busy
1706 * @ioc: per adapter object
1707 * @handle: device handle
1708 *
1709 * During taskmangement request, we need to freeze the device queue.
1710 */
1711void
1712mpt2sas_scsih_set_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
1713{
1714 struct MPT2SAS_DEVICE *sas_device_priv_data;
1715 struct scsi_device *sdev;
1716 u8 skip = 0;
1717
1718 shost_for_each_device(sdev, ioc->shost) {
1719 if (skip)
1720 continue;
1721 sas_device_priv_data = sdev->hostdata;
1722 if (!sas_device_priv_data)
1723 continue;
1724 if (sas_device_priv_data->sas_target->handle == handle) {
1725 sas_device_priv_data->sas_target->tm_busy = 1;
1726 skip = 1;
1727 ioc->ignore_loginfos = 1;
1728 }
1729 }
1730}
1731
1732/**
1733 * mpt2sas_scsih_clear_tm_flag - clear per target tm_busy
1734 * @ioc: per adapter object
1735 * @handle: device handle
1736 *
1737 * During taskmangement request, we need to freeze the device queue.
1738 */
1739void
1740mpt2sas_scsih_clear_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
1741{
1742 struct MPT2SAS_DEVICE *sas_device_priv_data;
1743 struct scsi_device *sdev;
1744 u8 skip = 0;
1745
1746 shost_for_each_device(sdev, ioc->shost) {
1747 if (skip)
1748 continue;
1749 sas_device_priv_data = sdev->hostdata;
1750 if (!sas_device_priv_data)
1751 continue;
1752 if (sas_device_priv_data->sas_target->handle == handle) {
1753 sas_device_priv_data->sas_target->tm_busy = 0;
1754 skip = 1;
1755 ioc->ignore_loginfos = 0;
1756 }
1757 }
1758}
1759
1760/**
1761 * mpt2sas_scsih_issue_tm - main routine for sending tm requests
1762 * @ioc: per adapter struct
1763 * @device_handle: device handle
1764 * @lun: lun number
1765 * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
1766 * @smid_task: smid assigned to the task
1767 * @timeout: timeout in seconds
1768 * Context: The calling function needs to acquire the tm_cmds.mutex
1769 *
1770 * A generic API for sending task management requests to firmware.
1771 *
1772 * The ioc->tm_cmds.status flag should be MPT2_CMD_NOT_USED before calling
1773 * this API.
1774 *
1775 * The callback index is set inside `ioc->tm_cb_idx`.
1776 *
1777 * Return nothing.
1778 */
1779void
1780mpt2sas_scsih_issue_tm(struct MPT2SAS_ADAPTER *ioc, u16 handle, uint lun,
1781 u8 type, u16 smid_task, ulong timeout)
1782{
1783 Mpi2SCSITaskManagementRequest_t *mpi_request;
1784 Mpi2SCSITaskManagementReply_t *mpi_reply;
1785 u16 smid = 0;
1786 u32 ioc_state;
1787 unsigned long timeleft;
1788 u8 VF_ID = 0;
1789 unsigned long flags;
1790
1791 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
1792 if (ioc->tm_cmds.status != MPT2_CMD_NOT_USED ||
1793 ioc->shost_recovery) {
1794 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
1795 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
1796 __func__, ioc->name);
1797 return;
1798 }
1799 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
1800
1801 ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
1802 if (ioc_state & MPI2_DOORBELL_USED) {
1803 dhsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "unexpected doorbell "
1804 "active!\n", ioc->name));
1805 goto issue_host_reset;
1806 }
1807
1808 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
1809 mpt2sas_base_fault_info(ioc, ioc_state &
1810 MPI2_DOORBELL_DATA_MASK);
1811 goto issue_host_reset;
1812 }
1813
1814 smid = mpt2sas_base_get_smid(ioc, ioc->tm_cb_idx);
1815 if (!smid) {
1816 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
1817 ioc->name, __func__);
1818 return;
1819 }
1820
1821 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "sending tm: handle(0x%04x),"
1822 " task_type(0x%02x), smid(%d)\n", ioc->name, handle, type, smid));
1823 ioc->tm_cmds.status = MPT2_CMD_PENDING;
1824 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
1825 ioc->tm_cmds.smid = smid;
1826 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
1827 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
1828 mpi_request->DevHandle = cpu_to_le16(handle);
1829 mpi_request->TaskType = type;
1830 mpi_request->TaskMID = cpu_to_le16(smid_task);
1831 int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN);
1832 mpt2sas_scsih_set_tm_flag(ioc, handle);
1833 mpt2sas_base_put_smid_hi_priority(ioc, smid, VF_ID);
1834 timeleft = wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
1835 mpt2sas_scsih_clear_tm_flag(ioc, handle);
1836 if (!(ioc->tm_cmds.status & MPT2_CMD_COMPLETE)) {
1837 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
1838 ioc->name, __func__);
1839 _debug_dump_mf(mpi_request,
1840 sizeof(Mpi2SCSITaskManagementRequest_t)/4);
1841 if (!(ioc->tm_cmds.status & MPT2_CMD_RESET))
1842 goto issue_host_reset;
1843 }
1844
1845 if (ioc->tm_cmds.status & MPT2_CMD_REPLY_VALID) {
1846 mpi_reply = ioc->tm_cmds.reply;
1847 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "complete tm: "
1848 "ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n",
1849 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
1850 le32_to_cpu(mpi_reply->IOCLogInfo),
1851 le32_to_cpu(mpi_reply->TerminationCount)));
1852 if (ioc->logging_level & MPT_DEBUG_TM)
1853 _scsih_response_code(ioc, mpi_reply->ResponseCode);
1854 }
1855 return;
1856 issue_host_reset:
1857 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, FORCE_BIG_HAMMER);
1858}
1859
1860/**
1861 * _scsih_abort - eh threads main abort routine
1862 * @sdev: scsi device struct
1863 *
1864 * Returns SUCCESS if command aborted else FAILED
1865 */
1866static int
1867_scsih_abort(struct scsi_cmnd *scmd)
1868{
1869 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
1870 struct MPT2SAS_DEVICE *sas_device_priv_data;
1871 u16 smid;
1872 u16 handle;
1873 int r;
1874 struct scsi_cmnd *scmd_lookup;
1875
1876 printk(MPT2SAS_INFO_FMT "attempting task abort! scmd(%p)\n",
1877 ioc->name, scmd);
1878 scsi_print_command(scmd);
1879
1880 sas_device_priv_data = scmd->device->hostdata;
1881 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
1882 printk(MPT2SAS_INFO_FMT "device been deleted! scmd(%p)\n",
1883 ioc->name, scmd);
1884 scmd->result = DID_NO_CONNECT << 16;
1885 scmd->scsi_done(scmd);
1886 r = SUCCESS;
1887 goto out;
1888 }
1889
1890 /* search for the command */
1891 smid = _scsih_scsi_lookup_find_by_scmd(ioc, scmd);
1892 if (!smid) {
1893 scmd->result = DID_RESET << 16;
1894 r = SUCCESS;
1895 goto out;
1896 }
1897
1898 /* for hidden raid components and volumes this is not supported */
1899 if (sas_device_priv_data->sas_target->flags &
1900 MPT_TARGET_FLAGS_RAID_COMPONENT ||
1901 sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_VOLUME) {
1902 scmd->result = DID_RESET << 16;
1903 r = FAILED;
1904 goto out;
1905 }
1906
1907 mutex_lock(&ioc->tm_cmds.mutex);
1908 handle = sas_device_priv_data->sas_target->handle;
1909 mpt2sas_scsih_issue_tm(ioc, handle, sas_device_priv_data->lun,
1910 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30);
1911
1912 /* sanity check - see whether command actually completed */
1913 scmd_lookup = _scsih_scsi_lookup_get(ioc, smid);
1914 if (scmd_lookup && (scmd_lookup->serial_number == scmd->serial_number))
1915 r = FAILED;
1916 else
1917 r = SUCCESS;
1918 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
1919 mutex_unlock(&ioc->tm_cmds.mutex);
1920
1921 out:
1922 printk(MPT2SAS_INFO_FMT "task abort: %s scmd(%p)\n",
1923 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
1924 return r;
1925}
1926
1927/**
1928 * _scsih_dev_reset - eh threads main device reset routine
1929 * @sdev: scsi device struct
1930 *
1931 * Returns SUCCESS if command aborted else FAILED
1932 */
1933static int
1934_scsih_dev_reset(struct scsi_cmnd *scmd)
1935{
1936 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
1937 struct MPT2SAS_DEVICE *sas_device_priv_data;
1938 struct _sas_device *sas_device;
1939 unsigned long flags;
1940 u16 handle;
1941 int r;
1942
1943 printk(MPT2SAS_INFO_FMT "attempting device reset! scmd(%p)\n",
1944 ioc->name, scmd);
1945 scsi_print_command(scmd);
1946
1947 sas_device_priv_data = scmd->device->hostdata;
1948 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
1949 printk(MPT2SAS_INFO_FMT "device been deleted! scmd(%p)\n",
1950 ioc->name, scmd);
1951 scmd->result = DID_NO_CONNECT << 16;
1952 scmd->scsi_done(scmd);
1953 r = SUCCESS;
1954 goto out;
1955 }
1956
1957 /* for hidden raid components obtain the volume_handle */
1958 handle = 0;
1959 if (sas_device_priv_data->sas_target->flags &
1960 MPT_TARGET_FLAGS_RAID_COMPONENT) {
1961 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1962 sas_device = _scsih_sas_device_find_by_handle(ioc,
1963 sas_device_priv_data->sas_target->handle);
1964 if (sas_device)
1965 handle = sas_device->volume_handle;
1966 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1967 } else
1968 handle = sas_device_priv_data->sas_target->handle;
1969
1970 if (!handle) {
1971 scmd->result = DID_RESET << 16;
1972 r = FAILED;
1973 goto out;
1974 }
1975
1976 mutex_lock(&ioc->tm_cmds.mutex);
1977 mpt2sas_scsih_issue_tm(ioc, handle, 0,
1978 MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, scmd->device->lun,
1979 30);
1980
1981 /*
1982 * sanity check see whether all commands to this device been
1983 * completed
1984 */
1985 if (_scsih_scsi_lookup_find_by_lun(ioc, scmd->device->id,
1986 scmd->device->lun, scmd->device->channel))
1987 r = FAILED;
1988 else
1989 r = SUCCESS;
1990 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
1991 mutex_unlock(&ioc->tm_cmds.mutex);
1992
1993 out:
1994 printk(MPT2SAS_INFO_FMT "device reset: %s scmd(%p)\n",
1995 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
1996 return r;
1997}
1998
1999/**
2000 * _scsih_target_reset - eh threads main target reset routine
2001 * @sdev: scsi device struct
2002 *
2003 * Returns SUCCESS if command aborted else FAILED
2004 */
2005static int
2006_scsih_target_reset(struct scsi_cmnd *scmd)
2007{
2008 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2009 struct MPT2SAS_DEVICE *sas_device_priv_data;
2010 struct _sas_device *sas_device;
2011 unsigned long flags;
2012 u16 handle;
2013 int r;
2014
2015 printk(MPT2SAS_INFO_FMT "attempting target reset! scmd(%p)\n",
2016 ioc->name, scmd);
2017 scsi_print_command(scmd);
2018
2019 sas_device_priv_data = scmd->device->hostdata;
2020 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2021 printk(MPT2SAS_INFO_FMT "target been deleted! scmd(%p)\n",
2022 ioc->name, scmd);
2023 scmd->result = DID_NO_CONNECT << 16;
2024 scmd->scsi_done(scmd);
2025 r = SUCCESS;
2026 goto out;
2027 }
2028
2029 /* for hidden raid components obtain the volume_handle */
2030 handle = 0;
2031 if (sas_device_priv_data->sas_target->flags &
2032 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2033 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2034 sas_device = _scsih_sas_device_find_by_handle(ioc,
2035 sas_device_priv_data->sas_target->handle);
2036 if (sas_device)
2037 handle = sas_device->volume_handle;
2038 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2039 } else
2040 handle = sas_device_priv_data->sas_target->handle;
2041
2042 if (!handle) {
2043 scmd->result = DID_RESET << 16;
2044 r = FAILED;
2045 goto out;
2046 }
2047
2048 mutex_lock(&ioc->tm_cmds.mutex);
2049 mpt2sas_scsih_issue_tm(ioc, handle, 0,
2050 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 30);
2051
2052 /*
2053 * sanity check see whether all commands to this target been
2054 * completed
2055 */
2056 if (_scsih_scsi_lookup_find_by_target(ioc, scmd->device->id,
2057 scmd->device->channel))
2058 r = FAILED;
2059 else
2060 r = SUCCESS;
2061 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
2062 mutex_unlock(&ioc->tm_cmds.mutex);
2063
2064 out:
2065 printk(MPT2SAS_INFO_FMT "target reset: %s scmd(%p)\n",
2066 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2067 return r;
2068}
2069
2070/**
2071 * _scsih_abort - eh threads main host reset routine
2072 * @sdev: scsi device struct
2073 *
2074 * Returns SUCCESS if command aborted else FAILED
2075 */
2076static int
2077_scsih_host_reset(struct scsi_cmnd *scmd)
2078{
2079 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2080 int r, retval;
2081
2082 printk(MPT2SAS_INFO_FMT "attempting host reset! scmd(%p)\n",
2083 ioc->name, scmd);
2084 scsi_print_command(scmd);
2085
2086 retval = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2087 FORCE_BIG_HAMMER);
2088 r = (retval < 0) ? FAILED : SUCCESS;
2089 printk(MPT2SAS_INFO_FMT "host reset: %s scmd(%p)\n",
2090 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2091
2092 return r;
2093}
2094
2095/**
2096 * _scsih_fw_event_add - insert and queue up fw_event
2097 * @ioc: per adapter object
2098 * @fw_event: object describing the event
2099 * Context: This function will acquire ioc->fw_event_lock.
2100 *
2101 * This adds the firmware event object into link list, then queues it up to
2102 * be processed from user context.
2103 *
2104 * Return nothing.
2105 */
2106static void
2107_scsih_fw_event_add(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
2108{
2109 unsigned long flags;
2110
2111 if (ioc->firmware_event_thread == NULL)
2112 return;
2113
2114 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2115 list_add_tail(&fw_event->list, &ioc->fw_event_list);
2116 INIT_WORK(&fw_event->work, _firmware_event_work);
2117 queue_work(ioc->firmware_event_thread, &fw_event->work);
2118 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2119}
2120
2121/**
2122 * _scsih_fw_event_free - delete fw_event
2123 * @ioc: per adapter object
2124 * @fw_event: object describing the event
2125 * Context: This function will acquire ioc->fw_event_lock.
2126 *
2127 * This removes firmware event object from link list, frees associated memory.
2128 *
2129 * Return nothing.
2130 */
2131static void
2132_scsih_fw_event_free(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
2133 *fw_event)
2134{
2135 unsigned long flags;
2136
2137 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2138 list_del(&fw_event->list);
2139 kfree(fw_event->event_data);
2140 kfree(fw_event);
2141 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2142}
2143
2144/**
2145 * _scsih_fw_event_add - requeue an event
2146 * @ioc: per adapter object
2147 * @fw_event: object describing the event
2148 * Context: This function will acquire ioc->fw_event_lock.
2149 *
2150 * Return nothing.
2151 */
2152static void
2153_scsih_fw_event_requeue(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
2154 *fw_event, unsigned long delay)
2155{
2156 unsigned long flags;
2157 if (ioc->firmware_event_thread == NULL)
2158 return;
2159
2160 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2161 queue_work(ioc->firmware_event_thread, &fw_event->work);
2162 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2163}
2164
2165/**
2166 * _scsih_fw_event_off - turn flag off preventing event handling
2167 * @ioc: per adapter object
2168 *
2169 * Used to prevent handling of firmware events during adapter reset
2170 * driver unload.
2171 *
2172 * Return nothing.
2173 */
2174static void
2175_scsih_fw_event_off(struct MPT2SAS_ADAPTER *ioc)
2176{
2177 unsigned long flags;
2178
2179 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2180 ioc->fw_events_off = 1;
2181 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2182
2183}
2184
2185/**
2186 * _scsih_fw_event_on - turn flag on allowing firmware event handling
2187 * @ioc: per adapter object
2188 *
2189 * Returns nothing.
2190 */
2191static void
2192_scsih_fw_event_on(struct MPT2SAS_ADAPTER *ioc)
2193{
2194 unsigned long flags;
2195
2196 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2197 ioc->fw_events_off = 0;
2198 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2199}
2200
2201/**
2202 * _scsih_ublock_io_device - set the device state to SDEV_RUNNING
2203 * @ioc: per adapter object
2204 * @handle: device handle
2205 *
2206 * During device pull we need to appropiately set the sdev state.
2207 */
2208static void
2209_scsih_ublock_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2210{
2211 struct MPT2SAS_DEVICE *sas_device_priv_data;
2212 struct scsi_device *sdev;
2213
2214 shost_for_each_device(sdev, ioc->shost) {
2215 sas_device_priv_data = sdev->hostdata;
2216 if (!sas_device_priv_data)
2217 continue;
2218 if (!sas_device_priv_data->block)
2219 continue;
2220 if (sas_device_priv_data->sas_target->handle == handle) {
2221 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2222 MPT2SAS_INFO_FMT "SDEV_RUNNING: "
2223 "handle(0x%04x)\n", ioc->name, handle));
2224 sas_device_priv_data->block = 0;
2225 scsi_device_set_state(sdev, SDEV_RUNNING);
2226 }
2227 }
2228}
2229
2230/**
2231 * _scsih_block_io_device - set the device state to SDEV_BLOCK
2232 * @ioc: per adapter object
2233 * @handle: device handle
2234 *
2235 * During device pull we need to appropiately set the sdev state.
2236 */
2237static void
2238_scsih_block_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2239{
2240 struct MPT2SAS_DEVICE *sas_device_priv_data;
2241 struct scsi_device *sdev;
2242
2243 shost_for_each_device(sdev, ioc->shost) {
2244 sas_device_priv_data = sdev->hostdata;
2245 if (!sas_device_priv_data)
2246 continue;
2247 if (sas_device_priv_data->block)
2248 continue;
2249 if (sas_device_priv_data->sas_target->handle == handle) {
2250 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2251 MPT2SAS_INFO_FMT "SDEV_BLOCK: "
2252 "handle(0x%04x)\n", ioc->name, handle));
2253 sas_device_priv_data->block = 1;
2254 scsi_device_set_state(sdev, SDEV_BLOCK);
2255 }
2256 }
2257}
2258
2259/**
2260 * _scsih_block_io_to_children_attached_to_ex
2261 * @ioc: per adapter object
2262 * @sas_expander: the sas_device object
2263 *
2264 * This routine set sdev state to SDEV_BLOCK for all devices
2265 * attached to this expander. This function called when expander is
2266 * pulled.
2267 */
2268static void
2269_scsih_block_io_to_children_attached_to_ex(struct MPT2SAS_ADAPTER *ioc,
2270 struct _sas_node *sas_expander)
2271{
2272 struct _sas_port *mpt2sas_port;
2273 struct _sas_device *sas_device;
2274 struct _sas_node *expander_sibling;
2275 unsigned long flags;
2276
2277 if (!sas_expander)
2278 return;
2279
2280 list_for_each_entry(mpt2sas_port,
2281 &sas_expander->sas_port_list, port_list) {
2282 if (mpt2sas_port->remote_identify.device_type ==
2283 SAS_END_DEVICE) {
2284 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2285 sas_device =
2286 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
2287 mpt2sas_port->remote_identify.sas_address);
2288 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2289 if (!sas_device)
2290 continue;
2291 _scsih_block_io_device(ioc, sas_device->handle);
2292 }
2293 }
2294
2295 list_for_each_entry(mpt2sas_port,
2296 &sas_expander->sas_port_list, port_list) {
2297
2298 if (mpt2sas_port->remote_identify.device_type ==
2299 MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER ||
2300 mpt2sas_port->remote_identify.device_type ==
2301 MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) {
2302
2303 spin_lock_irqsave(&ioc->sas_node_lock, flags);
2304 expander_sibling =
2305 mpt2sas_scsih_expander_find_by_sas_address(
2306 ioc, mpt2sas_port->remote_identify.sas_address);
2307 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
2308 _scsih_block_io_to_children_attached_to_ex(ioc,
2309 expander_sibling);
2310 }
2311 }
2312}
2313
2314/**
2315 * _scsih_block_io_to_children_attached_directly
2316 * @ioc: per adapter object
2317 * @event_data: topology change event data
2318 *
2319 * This routine set sdev state to SDEV_BLOCK for all devices
2320 * direct attached during device pull.
2321 */
2322static void
2323_scsih_block_io_to_children_attached_directly(struct MPT2SAS_ADAPTER *ioc,
2324 Mpi2EventDataSasTopologyChangeList_t *event_data)
2325{
2326 int i;
2327 u16 handle;
2328 u16 reason_code;
2329 u8 phy_number;
2330
2331 for (i = 0; i < event_data->NumEntries; i++) {
2332 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
2333 if (!handle)
2334 continue;
2335 phy_number = event_data->StartPhyNum + i;
2336 reason_code = event_data->PHY[i].PhyStatus &
2337 MPI2_EVENT_SAS_TOPO_RC_MASK;
2338 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING)
2339 _scsih_block_io_device(ioc, handle);
2340 }
2341}
2342
2343/**
2344 * _scsih_check_topo_delete_events - sanity check on topo events
2345 * @ioc: per adapter object
2346 * @event_data: the event data payload
2347 *
2348 * This routine added to better handle cable breaker.
2349 *
2350 * This handles the case where driver recieves multiple expander
2351 * add and delete events in a single shot. When there is a delete event
2352 * the routine will void any pending add events waiting in the event queue.
2353 *
2354 * Return nothing.
2355 */
2356static void
2357_scsih_check_topo_delete_events(struct MPT2SAS_ADAPTER *ioc,
2358 Mpi2EventDataSasTopologyChangeList_t *event_data)
2359{
2360 struct fw_event_work *fw_event;
2361 Mpi2EventDataSasTopologyChangeList_t *local_event_data;
2362 u16 expander_handle;
2363 struct _sas_node *sas_expander;
2364 unsigned long flags;
2365
2366 expander_handle = le16_to_cpu(event_data->ExpanderDevHandle);
2367 if (expander_handle < ioc->sas_hba.num_phys) {
2368 _scsih_block_io_to_children_attached_directly(ioc, event_data);
2369 return;
2370 }
2371
2372 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING
2373 || event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING) {
2374 spin_lock_irqsave(&ioc->sas_node_lock, flags);
2375 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
2376 expander_handle);
2377 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
2378 _scsih_block_io_to_children_attached_to_ex(ioc, sas_expander);
2379 } else if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_RESPONDING)
2380 _scsih_block_io_to_children_attached_directly(ioc, event_data);
2381
2382 if (event_data->ExpStatus != MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
2383 return;
2384
2385 /* mark ignore flag for pending events */
2386 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2387 list_for_each_entry(fw_event, &ioc->fw_event_list, list) {
2388 if (fw_event->event != MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
2389 fw_event->ignore)
2390 continue;
2391 local_event_data = fw_event->event_data;
2392 if (local_event_data->ExpStatus ==
2393 MPI2_EVENT_SAS_TOPO_ES_ADDED ||
2394 local_event_data->ExpStatus ==
2395 MPI2_EVENT_SAS_TOPO_ES_RESPONDING) {
2396 if (le16_to_cpu(local_event_data->ExpanderDevHandle) ==
2397 expander_handle) {
2398 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT
2399 "setting ignoring flag\n", ioc->name));
2400 fw_event->ignore = 1;
2401 }
2402 }
2403 }
2404 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2405}
2406
2407/**
2408 * _scsih_queue_rescan - queue a topology rescan from user context
2409 * @ioc: per adapter object
2410 *
2411 * Return nothing.
2412 */
2413static void
2414_scsih_queue_rescan(struct MPT2SAS_ADAPTER *ioc)
2415{
2416 struct fw_event_work *fw_event;
2417
2418 if (ioc->wait_for_port_enable_to_complete)
2419 return;
2420 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
2421 if (!fw_event)
2422 return;
2423 fw_event->event = MPT2SAS_RESCAN_AFTER_HOST_RESET;
2424 fw_event->ioc = ioc;
2425 _scsih_fw_event_add(ioc, fw_event);
2426}
2427
2428/**
2429 * _scsih_flush_running_cmds - completing outstanding commands.
2430 * @ioc: per adapter object
2431 *
2432 * The flushing out of all pending scmd commands following host reset,
2433 * where all IO is dropped to the floor.
2434 *
2435 * Return nothing.
2436 */
2437static void
2438_scsih_flush_running_cmds(struct MPT2SAS_ADAPTER *ioc)
2439{
2440 struct scsi_cmnd *scmd;
2441 u16 smid;
2442 u16 count = 0;
2443
2444 for (smid = 1; smid <= ioc->request_depth; smid++) {
2445 scmd = _scsih_scsi_lookup_getclear(ioc, smid);
2446 if (!scmd)
2447 continue;
2448 count++;
2449 mpt2sas_base_free_smid(ioc, smid);
2450 scsi_dma_unmap(scmd);
2451 scmd->result = DID_RESET << 16;
2452 scmd->scsi_done(scmd);
2453 }
2454 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "completing %d cmds\n",
2455 ioc->name, count));
2456}
2457
2458/**
2459 * mpt2sas_scsih_reset_handler - reset callback handler (for scsih)
2460 * @ioc: per adapter object
2461 * @reset_phase: phase
2462 *
2463 * The handler for doing any required cleanup or initialization.
2464 *
2465 * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
2466 * MPT2_IOC_DONE_RESET
2467 *
2468 * Return nothing.
2469 */
2470void
2471mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
2472{
2473 switch (reset_phase) {
2474 case MPT2_IOC_PRE_RESET:
2475 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
2476 "MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
2477 _scsih_fw_event_off(ioc);
2478 break;
2479 case MPT2_IOC_AFTER_RESET:
2480 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
2481 "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
2482 if (ioc->tm_cmds.status & MPT2_CMD_PENDING) {
2483 ioc->tm_cmds.status |= MPT2_CMD_RESET;
2484 mpt2sas_base_free_smid(ioc, ioc->tm_cmds.smid);
2485 complete(&ioc->tm_cmds.done);
2486 }
2487 _scsih_fw_event_on(ioc);
2488 _scsih_flush_running_cmds(ioc);
2489 break;
2490 case MPT2_IOC_DONE_RESET:
2491 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
2492 "MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
2493 _scsih_queue_rescan(ioc);
2494 break;
2495 }
2496}
2497
2498/**
2499 * _scsih_setup_eedp - setup MPI request for EEDP transfer
2500 * @scmd: pointer to scsi command object
2501 * @mpi_request: pointer to the SCSI_IO reqest message frame
2502 *
2503 * Supporting protection 1 and 3.
2504 *
2505 * Returns nothing
2506 */
2507static void
2508_scsih_setup_eedp(struct scsi_cmnd *scmd, Mpi2SCSIIORequest_t *mpi_request)
2509{
2510 u16 eedp_flags;
2511 unsigned char prot_op = scsi_get_prot_op(scmd);
2512 unsigned char prot_type = scsi_get_prot_type(scmd);
2513
2514 if (prot_type == SCSI_PROT_DIF_TYPE0 ||
2515 prot_type == SCSI_PROT_DIF_TYPE2 ||
2516 prot_op == SCSI_PROT_NORMAL)
2517 return;
2518
2519 if (prot_op == SCSI_PROT_READ_STRIP)
2520 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP;
2521 else if (prot_op == SCSI_PROT_WRITE_INSERT)
2522 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_INSERT_OP;
2523 else
2524 return;
2525
2526 mpi_request->EEDPBlockSize = scmd->device->sector_size;
2527
2528 switch (prot_type) {
2529 case SCSI_PROT_DIF_TYPE1:
2530
2531 /*
2532 * enable ref/guard checking
2533 * auto increment ref tag
2534 */
2535 mpi_request->EEDPFlags = eedp_flags |
2536 MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
2537 MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
2538 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
2539 mpi_request->CDB.EEDP32.PrimaryReferenceTag =
2540 cpu_to_be32(scsi_get_lba(scmd));
2541
2542 break;
2543
2544 case SCSI_PROT_DIF_TYPE3:
2545
2546 /*
2547 * enable guard checking
2548 */
2549 mpi_request->EEDPFlags = eedp_flags |
2550 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
2551
2552 break;
2553 }
2554}
2555
2556/**
2557 * _scsih_eedp_error_handling - return sense code for EEDP errors
2558 * @scmd: pointer to scsi command object
2559 * @ioc_status: ioc status
2560 *
2561 * Returns nothing
2562 */
2563static void
2564_scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status)
2565{
2566 u8 ascq;
2567 u8 sk;
2568 u8 host_byte;
2569
2570 switch (ioc_status) {
2571 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
2572 ascq = 0x01;
2573 break;
2574 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
2575 ascq = 0x02;
2576 break;
2577 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
2578 ascq = 0x03;
2579 break;
2580 default:
2581 ascq = 0x00;
2582 break;
2583 }
2584
2585 if (scmd->sc_data_direction == DMA_TO_DEVICE) {
2586 sk = ILLEGAL_REQUEST;
2587 host_byte = DID_ABORT;
2588 } else {
2589 sk = ABORTED_COMMAND;
2590 host_byte = DID_OK;
2591 }
2592
2593 scsi_build_sense_buffer(0, scmd->sense_buffer, sk, 0x10, ascq);
2594 scmd->result = DRIVER_SENSE << 24 | (host_byte << 16) |
2595 SAM_STAT_CHECK_CONDITION;
2596}
2597
2598/**
2599 * _scsih_qcmd - main scsi request entry point
2600 * @scmd: pointer to scsi command object
2601 * @done: function pointer to be invoked on completion
2602 *
2603 * The callback index is set inside `ioc->scsi_io_cb_idx`.
2604 *
2605 * Returns 0 on success. If there's a failure, return either:
2606 * SCSI_MLQUEUE_DEVICE_BUSY if the device queue is full, or
2607 * SCSI_MLQUEUE_HOST_BUSY if the entire host queue is full
2608 */
2609static int
2610_scsih_qcmd(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
2611{
2612 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2613 struct MPT2SAS_DEVICE *sas_device_priv_data;
2614 struct MPT2SAS_TARGET *sas_target_priv_data;
2615 Mpi2SCSIIORequest_t *mpi_request;
2616 u32 mpi_control;
2617 u16 smid;
2618 unsigned long flags;
2619
2620 scmd->scsi_done = done;
2621 sas_device_priv_data = scmd->device->hostdata;
2622 if (!sas_device_priv_data) {
2623 scmd->result = DID_NO_CONNECT << 16;
2624 scmd->scsi_done(scmd);
2625 return 0;
2626 }
2627
2628 sas_target_priv_data = sas_device_priv_data->sas_target;
2629 if (!sas_target_priv_data || sas_target_priv_data->handle ==
2630 MPT2SAS_INVALID_DEVICE_HANDLE || sas_target_priv_data->deleted) {
2631 scmd->result = DID_NO_CONNECT << 16;
2632 scmd->scsi_done(scmd);
2633 return 0;
2634 }
2635
2636 /* see if we are busy with task managment stuff */
2637 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
2638 if (sas_target_priv_data->tm_busy ||
2639 ioc->shost_recovery || ioc->ioc_link_reset_in_progress) {
2640 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
2641 return SCSI_MLQUEUE_HOST_BUSY;
2642 }
2643 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
2644
2645 if (scmd->sc_data_direction == DMA_FROM_DEVICE)
2646 mpi_control = MPI2_SCSIIO_CONTROL_READ;
2647 else if (scmd->sc_data_direction == DMA_TO_DEVICE)
2648 mpi_control = MPI2_SCSIIO_CONTROL_WRITE;
2649 else
2650 mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER;
2651
2652 /* set tags */
2653 if (!(sas_device_priv_data->flags & MPT_DEVICE_FLAGS_INIT)) {
2654 if (scmd->device->tagged_supported) {
2655 if (scmd->device->ordered_tags)
2656 mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ;
2657 else
2658 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
2659 } else
2660/* MPI Revision I (UNIT = 0xA) - removed MPI2_SCSIIO_CONTROL_UNTAGGED */
2661/* mpi_control |= MPI2_SCSIIO_CONTROL_UNTAGGED;
2662 */
2663 mpi_control |= (0x500);
2664
2665 } else
2666 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
2667
2668 if ((sas_device_priv_data->flags & MPT_DEVICE_TLR_ON))
2669 mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
2670
2671 smid = mpt2sas_base_get_smid(ioc, ioc->scsi_io_cb_idx);
2672 if (!smid) {
2673 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
2674 ioc->name, __func__);
2675 goto out;
2676 }
2677 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
2678 memset(mpi_request, 0, sizeof(Mpi2SCSIIORequest_t));
2679 _scsih_setup_eedp(scmd, mpi_request);
2680 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
2681 if (sas_device_priv_data->sas_target->flags &
2682 MPT_TARGET_FLAGS_RAID_COMPONENT)
2683 mpi_request->Function = MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
2684 else
2685 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
2686 mpi_request->DevHandle =
2687 cpu_to_le16(sas_device_priv_data->sas_target->handle);
2688 mpi_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
2689 mpi_request->Control = cpu_to_le32(mpi_control);
2690 mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len);
2691 mpi_request->MsgFlags = MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR;
2692 mpi_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
2693 mpi_request->SenseBufferLowAddress =
2694 (u32)mpt2sas_base_get_sense_buffer_dma(ioc, smid);
2695 mpi_request->SGLOffset0 = offsetof(Mpi2SCSIIORequest_t, SGL) / 4;
2696 mpi_request->SGLFlags = cpu_to_le16(MPI2_SCSIIO_SGLFLAGS_TYPE_MPI +
2697 MPI2_SCSIIO_SGLFLAGS_SYSTEM_ADDR);
2698
2699 int_to_scsilun(sas_device_priv_data->lun, (struct scsi_lun *)
2700 mpi_request->LUN);
2701 memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
2702
2703 if (!mpi_request->DataLength) {
2704 mpt2sas_base_build_zero_len_sge(ioc, &mpi_request->SGL);
2705 } else {
2706 if (_scsih_build_scatter_gather(ioc, scmd, smid)) {
2707 mpt2sas_base_free_smid(ioc, smid);
2708 goto out;
2709 }
2710 }
2711
2712 _scsih_scsi_lookup_set(ioc, smid, scmd);
2713 mpt2sas_base_put_smid_scsi_io(ioc, smid, 0,
2714 sas_device_priv_data->sas_target->handle);
2715 return 0;
2716
2717 out:
2718 return SCSI_MLQUEUE_HOST_BUSY;
2719}
2720
2721/**
2722 * _scsih_normalize_sense - normalize descriptor and fixed format sense data
2723 * @sense_buffer: sense data returned by target
2724 * @data: normalized skey/asc/ascq
2725 *
2726 * Return nothing.
2727 */
2728static void
2729_scsih_normalize_sense(char *sense_buffer, struct sense_info *data)
2730{
2731 if ((sense_buffer[0] & 0x7F) >= 0x72) {
2732 /* descriptor format */
2733 data->skey = sense_buffer[1] & 0x0F;
2734 data->asc = sense_buffer[2];
2735 data->ascq = sense_buffer[3];
2736 } else {
2737 /* fixed format */
2738 data->skey = sense_buffer[2] & 0x0F;
2739 data->asc = sense_buffer[12];
2740 data->ascq = sense_buffer[13];
2741 }
2742}
2743
2744#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
2745/**
2746 * _scsih_scsi_ioc_info - translated non-succesfull SCSI_IO request
2747 * @ioc: per adapter object
2748 * @scmd: pointer to scsi command object
2749 * @mpi_reply: reply mf payload returned from firmware
2750 *
2751 * scsi_status - SCSI Status code returned from target device
2752 * scsi_state - state info associated with SCSI_IO determined by ioc
2753 * ioc_status - ioc supplied status info
2754 *
2755 * Return nothing.
2756 */
2757static void
2758_scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
2759 Mpi2SCSIIOReply_t *mpi_reply, u16 smid)
2760{
2761 u32 response_info;
2762 u8 *response_bytes;
2763 u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
2764 MPI2_IOCSTATUS_MASK;
2765 u8 scsi_state = mpi_reply->SCSIState;
2766 u8 scsi_status = mpi_reply->SCSIStatus;
2767 char *desc_ioc_state = NULL;
2768 char *desc_scsi_status = NULL;
2769 char *desc_scsi_state = ioc->tmp_string;
2770 u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
2771
2772 if (log_info == 0x31170000)
2773 return;
2774
2775 switch (ioc_status) {
2776 case MPI2_IOCSTATUS_SUCCESS:
2777 desc_ioc_state = "success";
2778 break;
2779 case MPI2_IOCSTATUS_INVALID_FUNCTION:
2780 desc_ioc_state = "invalid function";
2781 break;
2782 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
2783 desc_ioc_state = "scsi recovered error";
2784 break;
2785 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
2786 desc_ioc_state = "scsi invalid dev handle";
2787 break;
2788 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
2789 desc_ioc_state = "scsi device not there";
2790 break;
2791 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
2792 desc_ioc_state = "scsi data overrun";
2793 break;
2794 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
2795 desc_ioc_state = "scsi data underrun";
2796 break;
2797 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
2798 desc_ioc_state = "scsi io data error";
2799 break;
2800 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
2801 desc_ioc_state = "scsi protocol error";
2802 break;
2803 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
2804 desc_ioc_state = "scsi task terminated";
2805 break;
2806 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
2807 desc_ioc_state = "scsi residual mismatch";
2808 break;
2809 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
2810 desc_ioc_state = "scsi task mgmt failed";
2811 break;
2812 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
2813 desc_ioc_state = "scsi ioc terminated";
2814 break;
2815 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
2816 desc_ioc_state = "scsi ext terminated";
2817 break;
2818 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
2819 desc_ioc_state = "eedp guard error";
2820 break;
2821 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
2822 desc_ioc_state = "eedp ref tag error";
2823 break;
2824 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
2825 desc_ioc_state = "eedp app tag error";
2826 break;
2827 default:
2828 desc_ioc_state = "unknown";
2829 break;
2830 }
2831
2832 switch (scsi_status) {
2833 case MPI2_SCSI_STATUS_GOOD:
2834 desc_scsi_status = "good";
2835 break;
2836 case MPI2_SCSI_STATUS_CHECK_CONDITION:
2837 desc_scsi_status = "check condition";
2838 break;
2839 case MPI2_SCSI_STATUS_CONDITION_MET:
2840 desc_scsi_status = "condition met";
2841 break;
2842 case MPI2_SCSI_STATUS_BUSY:
2843 desc_scsi_status = "busy";
2844 break;
2845 case MPI2_SCSI_STATUS_INTERMEDIATE:
2846 desc_scsi_status = "intermediate";
2847 break;
2848 case MPI2_SCSI_STATUS_INTERMEDIATE_CONDMET:
2849 desc_scsi_status = "intermediate condmet";
2850 break;
2851 case MPI2_SCSI_STATUS_RESERVATION_CONFLICT:
2852 desc_scsi_status = "reservation conflict";
2853 break;
2854 case MPI2_SCSI_STATUS_COMMAND_TERMINATED:
2855 desc_scsi_status = "command terminated";
2856 break;
2857 case MPI2_SCSI_STATUS_TASK_SET_FULL:
2858 desc_scsi_status = "task set full";
2859 break;
2860 case MPI2_SCSI_STATUS_ACA_ACTIVE:
2861 desc_scsi_status = "aca active";
2862 break;
2863 case MPI2_SCSI_STATUS_TASK_ABORTED:
2864 desc_scsi_status = "task aborted";
2865 break;
2866 default:
2867 desc_scsi_status = "unknown";
2868 break;
2869 }
2870
2871 desc_scsi_state[0] = '\0';
2872 if (!scsi_state)
2873 desc_scsi_state = " ";
2874 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
2875 strcat(desc_scsi_state, "response info ");
2876 if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
2877 strcat(desc_scsi_state, "state terminated ");
2878 if (scsi_state & MPI2_SCSI_STATE_NO_SCSI_STATUS)
2879 strcat(desc_scsi_state, "no status ");
2880 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_FAILED)
2881 strcat(desc_scsi_state, "autosense failed ");
2882 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID)
2883 strcat(desc_scsi_state, "autosense valid ");
2884
2885 scsi_print_command(scmd);
2886 printk(MPT2SAS_WARN_FMT "\tdev handle(0x%04x), "
2887 "ioc_status(%s)(0x%04x), smid(%d)\n", ioc->name,
2888 le16_to_cpu(mpi_reply->DevHandle), desc_ioc_state,
2889 ioc_status, smid);
2890 printk(MPT2SAS_WARN_FMT "\trequest_len(%d), underflow(%d), "
2891 "resid(%d)\n", ioc->name, scsi_bufflen(scmd), scmd->underflow,
2892 scsi_get_resid(scmd));
2893 printk(MPT2SAS_WARN_FMT "\ttag(%d), transfer_count(%d), "
2894 "sc->result(0x%08x)\n", ioc->name, le16_to_cpu(mpi_reply->TaskTag),
2895 le32_to_cpu(mpi_reply->TransferCount), scmd->result);
2896 printk(MPT2SAS_WARN_FMT "\tscsi_status(%s)(0x%02x), "
2897 "scsi_state(%s)(0x%02x)\n", ioc->name, desc_scsi_status,
2898 scsi_status, desc_scsi_state, scsi_state);
2899
2900 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
2901 struct sense_info data;
2902 _scsih_normalize_sense(scmd->sense_buffer, &data);
2903 printk(MPT2SAS_WARN_FMT "\t[sense_key,asc,ascq]: "
2904 "[0x%02x,0x%02x,0x%02x]\n", ioc->name, data.skey,
2905 data.asc, data.ascq);
2906 }
2907
2908 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
2909 response_info = le32_to_cpu(mpi_reply->ResponseInfo);
2910 response_bytes = (u8 *)&response_info;
2911 _scsih_response_code(ioc, response_bytes[3]);
2912 }
2913}
2914#endif
2915
2916/**
2917 * _scsih_smart_predicted_fault - illuminate Fault LED
2918 * @ioc: per adapter object
2919 * @handle: device handle
2920 *
2921 * Return nothing.
2922 */
2923static void
2924_scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2925{
2926 Mpi2SepReply_t mpi_reply;
2927 Mpi2SepRequest_t mpi_request;
2928 struct scsi_target *starget;
2929 struct MPT2SAS_TARGET *sas_target_priv_data;
2930 Mpi2EventNotificationReply_t *event_reply;
2931 Mpi2EventDataSasDeviceStatusChange_t *event_data;
2932 struct _sas_device *sas_device;
2933 ssize_t sz;
2934 unsigned long flags;
2935
2936 /* only handle non-raid devices */
2937 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2938 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
2939 if (!sas_device) {
2940 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2941 return;
2942 }
2943 starget = sas_device->starget;
2944 sas_target_priv_data = starget->hostdata;
2945
2946 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) ||
2947 ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) {
2948 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2949 return;
2950 }
2951 starget_printk(KERN_WARNING, starget, "predicted fault\n");
2952 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2953
2954 if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM) {
2955 memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t));
2956 mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
2957 mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS;
2958 mpi_request.SlotStatus =
2959 MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT;
2960 mpi_request.DevHandle = cpu_to_le16(handle);
2961 mpi_request.Flags = MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS;
2962 if ((mpt2sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
2963 &mpi_request)) != 0) {
2964 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
2965 ioc->name, __FILE__, __LINE__, __func__);
2966 return;
2967 }
2968
2969 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) {
2970 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
2971 "enclosure_processor: ioc_status (0x%04x), "
2972 "loginfo(0x%08x)\n", ioc->name,
2973 le16_to_cpu(mpi_reply.IOCStatus),
2974 le32_to_cpu(mpi_reply.IOCLogInfo)));
2975 return;
2976 }
2977 }
2978
2979 /* insert into event log */
2980 sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
2981 sizeof(Mpi2EventDataSasDeviceStatusChange_t);
2982 event_reply = kzalloc(sz, GFP_KERNEL);
2983 if (!event_reply) {
2984 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
2985 ioc->name, __FILE__, __LINE__, __func__);
2986 return;
2987 }
2988
2989 event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
2990 event_reply->Event =
2991 cpu_to_le16(MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
2992 event_reply->MsgLength = sz/4;
2993 event_reply->EventDataLength =
2994 cpu_to_le16(sizeof(Mpi2EventDataSasDeviceStatusChange_t)/4);
2995 event_data = (Mpi2EventDataSasDeviceStatusChange_t *)
2996 event_reply->EventData;
2997 event_data->ReasonCode = MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA;
2998 event_data->ASC = 0x5D;
2999 event_data->DevHandle = cpu_to_le16(handle);
3000 event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address);
3001 mpt2sas_ctl_add_to_event_log(ioc, event_reply);
3002 kfree(event_reply);
3003}
3004
3005/**
3006 * _scsih_io_done - scsi request callback
3007 * @ioc: per adapter object
3008 * @smid: system request message index
3009 * @VF_ID: virtual function id
3010 * @reply: reply message frame(lower 32bit addr)
3011 *
3012 * Callback handler when using scsih_qcmd.
3013 *
3014 * Return nothing.
3015 */
3016static void
3017_scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply)
3018{
3019 Mpi2SCSIIORequest_t *mpi_request;
3020 Mpi2SCSIIOReply_t *mpi_reply;
3021 struct scsi_cmnd *scmd;
3022 u16 ioc_status;
3023 u32 xfer_cnt;
3024 u8 scsi_state;
3025 u8 scsi_status;
3026 u32 log_info;
3027 struct MPT2SAS_DEVICE *sas_device_priv_data;
3028 u32 response_code;
3029
3030 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
3031 scmd = _scsih_scsi_lookup_getclear(ioc, smid);
3032 if (scmd == NULL)
3033 return;
3034
3035 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3036
3037 if (mpi_reply == NULL) {
3038 scmd->result = DID_OK << 16;
3039 goto out;
3040 }
3041
3042 sas_device_priv_data = scmd->device->hostdata;
3043 if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
3044 sas_device_priv_data->sas_target->deleted) {
3045 scmd->result = DID_NO_CONNECT << 16;
3046 goto out;
3047 }
3048
3049 /* turning off TLR */
3050 if (!sas_device_priv_data->tlr_snoop_check) {
3051 sas_device_priv_data->tlr_snoop_check++;
3052 if (sas_device_priv_data->flags & MPT_DEVICE_TLR_ON) {
3053 response_code = (le32_to_cpu(mpi_reply->ResponseInfo)
3054 >> 24);
3055 if (response_code ==
3056 MPI2_SCSITASKMGMT_RSP_INVALID_FRAME)
3057 sas_device_priv_data->flags &=
3058 ~MPT_DEVICE_TLR_ON;
3059 }
3060 }
3061
3062 xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
3063 scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
3064 ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
3065 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
3066 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
3067 else
3068 log_info = 0;
3069 ioc_status &= MPI2_IOCSTATUS_MASK;
3070 scsi_state = mpi_reply->SCSIState;
3071 scsi_status = mpi_reply->SCSIStatus;
3072
3073 if (ioc_status == MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
3074 (scsi_status == MPI2_SCSI_STATUS_BUSY ||
3075 scsi_status == MPI2_SCSI_STATUS_RESERVATION_CONFLICT ||
3076 scsi_status == MPI2_SCSI_STATUS_TASK_SET_FULL)) {
3077 ioc_status = MPI2_IOCSTATUS_SUCCESS;
3078 }
3079
3080 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
3081 struct sense_info data;
3082 const void *sense_data = mpt2sas_base_get_sense_buffer(ioc,
3083 smid);
3084 u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
3085 le32_to_cpu(mpi_reply->SenseCount));
3086 memcpy(scmd->sense_buffer, sense_data, sz);
3087 _scsih_normalize_sense(scmd->sense_buffer, &data);
3088 /* failure prediction threshold exceeded */
3089 if (data.asc == 0x5D)
3090 _scsih_smart_predicted_fault(ioc,
3091 le16_to_cpu(mpi_reply->DevHandle));
3092 }
3093
3094 switch (ioc_status) {
3095 case MPI2_IOCSTATUS_BUSY:
3096 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
3097 scmd->result = SAM_STAT_BUSY;
3098 break;
3099
3100 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
3101 scmd->result = DID_NO_CONNECT << 16;
3102 break;
3103
3104 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
3105 if (sas_device_priv_data->block) {
3106 scmd->result = (DID_BUS_BUSY << 16);
3107 break;
3108 }
3109
3110 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
3111 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
3112 scmd->result = DID_RESET << 16;
3113 break;
3114
3115 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
3116 if ((xfer_cnt == 0) || (scmd->underflow > xfer_cnt))
3117 scmd->result = DID_SOFT_ERROR << 16;
3118 else
3119 scmd->result = (DID_OK << 16) | scsi_status;
3120 break;
3121
3122 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
3123 scmd->result = (DID_OK << 16) | scsi_status;
3124
3125 if ((scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID))
3126 break;
3127
3128 if (xfer_cnt < scmd->underflow) {
3129 if (scsi_status == SAM_STAT_BUSY)
3130 scmd->result = SAM_STAT_BUSY;
3131 else
3132 scmd->result = DID_SOFT_ERROR << 16;
3133 } else if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
3134 MPI2_SCSI_STATE_NO_SCSI_STATUS))
3135 scmd->result = DID_SOFT_ERROR << 16;
3136 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
3137 scmd->result = DID_RESET << 16;
3138 else if (!xfer_cnt && scmd->cmnd[0] == REPORT_LUNS) {
3139 mpi_reply->SCSIState = MPI2_SCSI_STATE_AUTOSENSE_VALID;
3140 mpi_reply->SCSIStatus = SAM_STAT_CHECK_CONDITION;
3141 scmd->result = (DRIVER_SENSE << 24) |
3142 SAM_STAT_CHECK_CONDITION;
3143 scmd->sense_buffer[0] = 0x70;
3144 scmd->sense_buffer[2] = ILLEGAL_REQUEST;
3145 scmd->sense_buffer[12] = 0x20;
3146 scmd->sense_buffer[13] = 0;
3147 }
3148 break;
3149
3150 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
3151 scsi_set_resid(scmd, 0);
3152 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
3153 case MPI2_IOCSTATUS_SUCCESS:
3154 scmd->result = (DID_OK << 16) | scsi_status;
3155 if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
3156 MPI2_SCSI_STATE_NO_SCSI_STATUS))
3157 scmd->result = DID_SOFT_ERROR << 16;
3158 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
3159 scmd->result = DID_RESET << 16;
3160 break;
3161
3162 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
3163 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
3164 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
3165 _scsih_eedp_error_handling(scmd, ioc_status);
3166 break;
3167 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
3168 case MPI2_IOCSTATUS_INVALID_FUNCTION:
3169 case MPI2_IOCSTATUS_INVALID_SGL:
3170 case MPI2_IOCSTATUS_INTERNAL_ERROR:
3171 case MPI2_IOCSTATUS_INVALID_FIELD:
3172 case MPI2_IOCSTATUS_INVALID_STATE:
3173 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
3174 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
3175 default:
3176 scmd->result = DID_SOFT_ERROR << 16;
3177 break;
3178
3179 }
3180
3181#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3182 if (scmd->result && (ioc->logging_level & MPT_DEBUG_REPLY))
3183 _scsih_scsi_ioc_info(ioc , scmd, mpi_reply, smid);
3184#endif
3185
3186 out:
3187 scsi_dma_unmap(scmd);
3188 scmd->scsi_done(scmd);
3189}
3190
3191/**
3192 * _scsih_link_change - process phy link changes
3193 * @ioc: per adapter object
3194 * @handle: phy handle
3195 * @attached_handle: valid for devices attached to link
3196 * @phy_number: phy number
3197 * @link_rate: new link rate
3198 * Context: user.
3199 *
3200 * Return nothing.
3201 */
3202static void
3203_scsih_link_change(struct MPT2SAS_ADAPTER *ioc, u16 handle, u16 attached_handle,
3204 u8 phy_number, u8 link_rate)
3205{
3206 mpt2sas_transport_update_phy_link_change(ioc, handle, attached_handle,
3207 phy_number, link_rate);
3208}
3209
3210/**
3211 * _scsih_sas_host_refresh - refreshing sas host object contents
3212 * @ioc: per adapter object
3213 * @update: update link information
3214 * Context: user
3215 *
3216 * During port enable, fw will send topology events for every device. Its
3217 * possible that the handles may change from the previous setting, so this
3218 * code keeping handles updating if changed.
3219 *
3220 * Return nothing.
3221 */
3222static void
3223_scsih_sas_host_refresh(struct MPT2SAS_ADAPTER *ioc, u8 update)
3224{
3225 u16 sz;
3226 u16 ioc_status;
3227 int i;
3228 Mpi2ConfigReply_t mpi_reply;
3229 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
3230
3231 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT
3232 "updating handles for sas_host(0x%016llx)\n",
3233 ioc->name, (unsigned long long)ioc->sas_hba.sas_address));
3234
3235 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys
3236 * sizeof(Mpi2SasIOUnit0PhyData_t));
3237 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
3238 if (!sas_iounit_pg0) {
3239 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3240 ioc->name, __FILE__, __LINE__, __func__);
3241 return;
3242 }
3243 if (!(mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
3244 sas_iounit_pg0, sz))) {
3245 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3246 MPI2_IOCSTATUS_MASK;
3247 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
3248 goto out;
3249 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
3250 ioc->sas_hba.phy[i].handle =
3251 le16_to_cpu(sas_iounit_pg0->PhyData[i].
3252 ControllerDevHandle);
3253 if (update)
3254 _scsih_link_change(ioc,
3255 ioc->sas_hba.phy[i].handle,
3256 le16_to_cpu(sas_iounit_pg0->PhyData[i].
3257 AttachedDevHandle), i,
3258 sas_iounit_pg0->PhyData[i].
3259 NegotiatedLinkRate >> 4);
3260 }
3261 }
3262
3263 out:
3264 kfree(sas_iounit_pg0);
3265}
3266
3267/**
3268 * _scsih_sas_host_add - create sas host object
3269 * @ioc: per adapter object
3270 *
3271 * Creating host side data object, stored in ioc->sas_hba
3272 *
3273 * Return nothing.
3274 */
3275static void
3276_scsih_sas_host_add(struct MPT2SAS_ADAPTER *ioc)
3277{
3278 int i;
3279 Mpi2ConfigReply_t mpi_reply;
3280 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
3281 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
3282 Mpi2SasPhyPage0_t phy_pg0;
3283 Mpi2SasDevicePage0_t sas_device_pg0;
3284 Mpi2SasEnclosurePage0_t enclosure_pg0;
3285 u16 ioc_status;
3286 u16 sz;
3287 u16 device_missing_delay;
3288
3289 mpt2sas_config_get_number_hba_phys(ioc, &ioc->sas_hba.num_phys);
3290 if (!ioc->sas_hba.num_phys) {
3291 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3292 ioc->name, __FILE__, __LINE__, __func__);
3293 return;
3294 }
3295
3296 /* sas_iounit page 0 */
3297 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys *
3298 sizeof(Mpi2SasIOUnit0PhyData_t));
3299 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
3300 if (!sas_iounit_pg0) {
3301 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3302 ioc->name, __FILE__, __LINE__, __func__);
3303 return;
3304 }
3305 if ((mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
3306 sas_iounit_pg0, sz))) {
3307 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3308 ioc->name, __FILE__, __LINE__, __func__);
3309 goto out;
3310 }
3311 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3312 MPI2_IOCSTATUS_MASK;
3313 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3314 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3315 ioc->name, __FILE__, __LINE__, __func__);
3316 goto out;
3317 }
3318
3319 /* sas_iounit page 1 */
3320 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
3321 sizeof(Mpi2SasIOUnit1PhyData_t));
3322 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
3323 if (!sas_iounit_pg1) {
3324 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3325 ioc->name, __FILE__, __LINE__, __func__);
3326 goto out;
3327 }
3328 if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
3329 sas_iounit_pg1, sz))) {
3330 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3331 ioc->name, __FILE__, __LINE__, __func__);
3332 goto out;
3333 }
3334 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3335 MPI2_IOCSTATUS_MASK;
3336 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3337 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3338 ioc->name, __FILE__, __LINE__, __func__);
3339 goto out;
3340 }
3341
3342 ioc->io_missing_delay =
3343 le16_to_cpu(sas_iounit_pg1->IODeviceMissingDelay);
3344 device_missing_delay =
3345 le16_to_cpu(sas_iounit_pg1->ReportDeviceMissingDelay);
3346 if (device_missing_delay & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
3347 ioc->device_missing_delay = (device_missing_delay &
3348 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
3349 else
3350 ioc->device_missing_delay = device_missing_delay &
3351 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
3352
3353 ioc->sas_hba.parent_dev = &ioc->shost->shost_gendev;
3354 ioc->sas_hba.phy = kcalloc(ioc->sas_hba.num_phys,
3355 sizeof(struct _sas_phy), GFP_KERNEL);
3356 if (!ioc->sas_hba.phy) {
3357 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3358 ioc->name, __FILE__, __LINE__, __func__);
3359 goto out;
3360 }
3361 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
3362 if ((mpt2sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
3363 i))) {
3364 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3365 ioc->name, __FILE__, __LINE__, __func__);
3366 goto out;
3367 }
3368 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3369 MPI2_IOCSTATUS_MASK;
3370 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3371 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3372 ioc->name, __FILE__, __LINE__, __func__);
3373 goto out;
3374 }
3375 ioc->sas_hba.phy[i].handle =
3376 le16_to_cpu(sas_iounit_pg0->PhyData[i].ControllerDevHandle);
3377 ioc->sas_hba.phy[i].phy_id = i;
3378 mpt2sas_transport_add_host_phy(ioc, &ioc->sas_hba.phy[i],
3379 phy_pg0, ioc->sas_hba.parent_dev);
3380 }
3381 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
3382 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.phy[0].handle))) {
3383 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3384 ioc->name, __FILE__, __LINE__, __func__);
3385 goto out;
3386 }
3387 ioc->sas_hba.handle = le16_to_cpu(sas_device_pg0.DevHandle);
3388 ioc->sas_hba.enclosure_handle =
3389 le16_to_cpu(sas_device_pg0.EnclosureHandle);
3390 ioc->sas_hba.sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
3391 printk(MPT2SAS_INFO_FMT "host_add: handle(0x%04x), "
3392 "sas_addr(0x%016llx), phys(%d)\n", ioc->name, ioc->sas_hba.handle,
3393 (unsigned long long) ioc->sas_hba.sas_address,
3394 ioc->sas_hba.num_phys) ;
3395
3396 if (ioc->sas_hba.enclosure_handle) {
3397 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
3398 &enclosure_pg0,
3399 MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
3400 ioc->sas_hba.enclosure_handle))) {
3401 ioc->sas_hba.enclosure_logical_id =
3402 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
3403 }
3404 }
3405
3406 out:
3407 kfree(sas_iounit_pg1);
3408 kfree(sas_iounit_pg0);
3409}
3410
3411/**
3412 * _scsih_expander_add - creating expander object
3413 * @ioc: per adapter object
3414 * @handle: expander handle
3415 *
3416 * Creating expander object, stored in ioc->sas_expander_list.
3417 *
3418 * Return 0 for success, else error.
3419 */
3420static int
3421_scsih_expander_add(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3422{
3423 struct _sas_node *sas_expander;
3424 Mpi2ConfigReply_t mpi_reply;
3425 Mpi2ExpanderPage0_t expander_pg0;
3426 Mpi2ExpanderPage1_t expander_pg1;
3427 Mpi2SasEnclosurePage0_t enclosure_pg0;
3428 u32 ioc_status;
3429 u16 parent_handle;
3430 __le64 sas_address;
3431 int i;
3432 unsigned long flags;
3433 struct _sas_port *mpt2sas_port = NULL;
3434 int rc = 0;
3435
3436 if (!handle)
3437 return -1;
3438
3439 if ((mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
3440 MPI2_SAS_EXPAND_PGAD_FORM_HNDL, handle))) {
3441 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3442 ioc->name, __FILE__, __LINE__, __func__);
3443 return -1;
3444 }
3445
3446 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3447 MPI2_IOCSTATUS_MASK;
3448 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3449 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3450 ioc->name, __FILE__, __LINE__, __func__);
3451 return -1;
3452 }
3453
3454 /* handle out of order topology events */
3455 parent_handle = le16_to_cpu(expander_pg0.ParentDevHandle);
3456 if (parent_handle >= ioc->sas_hba.num_phys) {
3457 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3458 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
3459 parent_handle);
3460 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3461 if (!sas_expander) {
3462 rc = _scsih_expander_add(ioc, parent_handle);
3463 if (rc != 0)
3464 return rc;
3465 }
3466 }
3467
3468 sas_address = le64_to_cpu(expander_pg0.SASAddress);
3469
3470 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3471 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
3472 sas_address);
3473 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3474
3475 if (sas_expander)
3476 return 0;
3477
3478 sas_expander = kzalloc(sizeof(struct _sas_node),
3479 GFP_KERNEL);
3480 if (!sas_expander) {
3481 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3482 ioc->name, __FILE__, __LINE__, __func__);
3483 return -1;
3484 }
3485
3486 sas_expander->handle = handle;
3487 sas_expander->num_phys = expander_pg0.NumPhys;
3488 sas_expander->parent_handle = parent_handle;
3489 sas_expander->enclosure_handle =
3490 le16_to_cpu(expander_pg0.EnclosureHandle);
3491 sas_expander->sas_address = sas_address;
3492
3493 printk(MPT2SAS_INFO_FMT "expander_add: handle(0x%04x),"
3494 " parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n", ioc->name,
3495 handle, sas_expander->parent_handle, (unsigned long long)
3496 sas_expander->sas_address, sas_expander->num_phys);
3497
3498 if (!sas_expander->num_phys)
3499 goto out_fail;
3500 sas_expander->phy = kcalloc(sas_expander->num_phys,
3501 sizeof(struct _sas_phy), GFP_KERNEL);
3502 if (!sas_expander->phy) {
3503 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3504 ioc->name, __FILE__, __LINE__, __func__);
3505 rc = -1;
3506 goto out_fail;
3507 }
3508
3509 INIT_LIST_HEAD(&sas_expander->sas_port_list);
3510 mpt2sas_port = mpt2sas_transport_port_add(ioc, handle,
3511 sas_expander->parent_handle);
3512 if (!mpt2sas_port) {
3513 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3514 ioc->name, __FILE__, __LINE__, __func__);
3515 rc = -1;
3516 goto out_fail;
3517 }
3518 sas_expander->parent_dev = &mpt2sas_port->rphy->dev;
3519
3520 for (i = 0 ; i < sas_expander->num_phys ; i++) {
3521 if ((mpt2sas_config_get_expander_pg1(ioc, &mpi_reply,
3522 &expander_pg1, i, handle))) {
3523 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3524 ioc->name, __FILE__, __LINE__, __func__);
3525 rc = -1;
3526 goto out_fail;
3527 }
3528 sas_expander->phy[i].handle = handle;
3529 sas_expander->phy[i].phy_id = i;
3530
3531 if ((mpt2sas_transport_add_expander_phy(ioc,
3532 &sas_expander->phy[i], expander_pg1,
3533 sas_expander->parent_dev))) {
3534 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3535 ioc->name, __FILE__, __LINE__, __func__);
3536 rc = -1;
3537 goto out_fail;
3538 }
3539 }
3540
3541 if (sas_expander->enclosure_handle) {
3542 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
3543 &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
3544 sas_expander->enclosure_handle))) {
3545 sas_expander->enclosure_logical_id =
3546 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
3547 }
3548 }
3549
3550 _scsih_expander_node_add(ioc, sas_expander);
3551 return 0;
3552
3553 out_fail:
3554
3555 if (mpt2sas_port)
3556 mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
3557 sas_expander->parent_handle);
3558 kfree(sas_expander);
3559 return rc;
3560}
3561
3562/**
3563 * _scsih_expander_remove - removing expander object
3564 * @ioc: per adapter object
3565 * @handle: expander handle
3566 *
3567 * Return nothing.
3568 */
3569static void
3570_scsih_expander_remove(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3571{
3572 struct _sas_node *sas_expander;
3573 unsigned long flags;
3574
3575 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3576 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc, handle);
3577 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3578 _scsih_expander_node_remove(ioc, sas_expander);
3579}
3580
3581/**
3582 * _scsih_add_device - creating sas device object
3583 * @ioc: per adapter object
3584 * @handle: sas device handle
3585 * @phy_num: phy number end device attached to
3586 * @is_pd: is this hidden raid component
3587 *
3588 * Creating end device object, stored in ioc->sas_device_list.
3589 *
3590 * Returns 0 for success, non-zero for failure.
3591 */
3592static int
3593_scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd)
3594{
3595 Mpi2ConfigReply_t mpi_reply;
3596 Mpi2SasDevicePage0_t sas_device_pg0;
3597 Mpi2SasEnclosurePage0_t enclosure_pg0;
3598 struct _sas_device *sas_device;
3599 u32 ioc_status;
3600 __le64 sas_address;
3601 u32 device_info;
3602 unsigned long flags;
3603
3604 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
3605 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
3606 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3607 ioc->name, __FILE__, __LINE__, __func__);
3608 return -1;
3609 }
3610
3611 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3612 MPI2_IOCSTATUS_MASK;
3613 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3614 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3615 ioc->name, __FILE__, __LINE__, __func__);
3616 return -1;
3617 }
3618
3619 /* check if device is present */
3620 if (!(le16_to_cpu(sas_device_pg0.Flags) &
3621 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
3622 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3623 ioc->name, __FILE__, __LINE__, __func__);
3624 printk(MPT2SAS_ERR_FMT "Flags = 0x%04x\n",
3625 ioc->name, le16_to_cpu(sas_device_pg0.Flags));
3626 return -1;
3627 }
3628
3629 /* check if there were any issus with discovery */
3630 if (sas_device_pg0.AccessStatus ==
3631 MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED) {
3632 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3633 ioc->name, __FILE__, __LINE__, __func__);
3634 printk(MPT2SAS_ERR_FMT "AccessStatus = 0x%02x\n",
3635 ioc->name, sas_device_pg0.AccessStatus);
3636 return -1;
3637 }
3638
3639 /* check if this is end device */
3640 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
3641 if (!(_scsih_is_end_device(device_info))) {
3642 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3643 ioc->name, __FILE__, __LINE__, __func__);
3644 return -1;
3645 }
3646
3647 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
3648
3649 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3650 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
3651 sas_address);
3652 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3653
3654 if (sas_device) {
3655 _scsih_ublock_io_device(ioc, handle);
3656 return 0;
3657 }
3658
3659 sas_device = kzalloc(sizeof(struct _sas_device),
3660 GFP_KERNEL);
3661 if (!sas_device) {
3662 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3663 ioc->name, __FILE__, __LINE__, __func__);
3664 return -1;
3665 }
3666
3667 sas_device->handle = handle;
3668 sas_device->parent_handle =
3669 le16_to_cpu(sas_device_pg0.ParentDevHandle);
3670 sas_device->enclosure_handle =
3671 le16_to_cpu(sas_device_pg0.EnclosureHandle);
3672 sas_device->slot =
3673 le16_to_cpu(sas_device_pg0.Slot);
3674 sas_device->device_info = device_info;
3675 sas_device->sas_address = sas_address;
3676 sas_device->hidden_raid_component = is_pd;
3677
3678 /* get enclosure_logical_id */
3679 if (sas_device->enclosure_handle && !(mpt2sas_config_get_enclosure_pg0(
3680 ioc, &mpi_reply, &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
3681 sas_device->enclosure_handle)))
3682 sas_device->enclosure_logical_id =
3683 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
3684
3685 /* get device name */
3686 sas_device->device_name = le64_to_cpu(sas_device_pg0.DeviceName);
3687
3688 if (ioc->wait_for_port_enable_to_complete)
3689 _scsih_sas_device_init_add(ioc, sas_device);
3690 else
3691 _scsih_sas_device_add(ioc, sas_device);
3692
3693 return 0;
3694}
3695
3696/**
3697 * _scsih_remove_device - removing sas device object
3698 * @ioc: per adapter object
3699 * @handle: sas device handle
3700 *
3701 * Return nothing.
3702 */
3703static void
3704_scsih_remove_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3705{
3706 struct MPT2SAS_TARGET *sas_target_priv_data;
3707 struct _sas_device *sas_device;
3708 unsigned long flags;
3709 Mpi2SasIoUnitControlReply_t mpi_reply;
3710 Mpi2SasIoUnitControlRequest_t mpi_request;
3711 u16 device_handle;
3712
3713 /* lookup sas_device */
3714 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3715 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
3716 if (!sas_device) {
3717 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3718 return;
3719 }
3720
3721 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter: handle"
3722 "(0x%04x)\n", ioc->name, __func__, handle));
3723
3724 if (sas_device->starget && sas_device->starget->hostdata) {
3725 sas_target_priv_data = sas_device->starget->hostdata;
3726 sas_target_priv_data->deleted = 1;
3727 }
3728 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3729
3730 if (ioc->remove_host)
3731 goto out;
3732
3733 /* Target Reset to flush out all the outstanding IO */
3734 device_handle = (sas_device->hidden_raid_component) ?
3735 sas_device->volume_handle : handle;
3736 if (device_handle) {
3737 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "issue target reset: "
3738 "handle(0x%04x)\n", ioc->name, device_handle));
3739 mutex_lock(&ioc->tm_cmds.mutex);
3740 mpt2sas_scsih_issue_tm(ioc, device_handle, 0,
3741 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 10);
3742 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
3743 mutex_unlock(&ioc->tm_cmds.mutex);
3744 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "issue target reset "
3745 "done: handle(0x%04x)\n", ioc->name, device_handle));
3746 }
3747
3748 /* SAS_IO_UNIT_CNTR - send REMOVE_DEVICE */
3749 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sas_iounit: handle"
3750 "(0x%04x)\n", ioc->name, handle));
3751 memset(&mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
3752 mpi_request.Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
3753 mpi_request.Operation = MPI2_SAS_OP_REMOVE_DEVICE;
3754 mpi_request.DevHandle = handle;
3755 mpi_request.VF_ID = 0;
3756 if ((mpt2sas_base_sas_iounit_control(ioc, &mpi_reply,
3757 &mpi_request)) != 0) {
3758 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3759 ioc->name, __FILE__, __LINE__, __func__);
3760 }
3761
3762 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sas_iounit: ioc_status"
3763 "(0x%04x), loginfo(0x%08x)\n", ioc->name,
3764 le16_to_cpu(mpi_reply.IOCStatus),
3765 le32_to_cpu(mpi_reply.IOCLogInfo)));
3766
3767 out:
3768 mpt2sas_transport_port_remove(ioc, sas_device->sas_address,
3769 sas_device->parent_handle);
3770
3771 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), sas_addr"
3772 "(0x%016llx)\n", ioc->name, sas_device->handle,
3773 (unsigned long long) sas_device->sas_address);
3774 _scsih_sas_device_remove(ioc, sas_device);
3775
3776 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit: handle"
3777 "(0x%04x)\n", ioc->name, __func__, handle));
3778}
3779
3780#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3781/**
3782 * _scsih_sas_topology_change_event_debug - debug for topology event
3783 * @ioc: per adapter object
3784 * @event_data: event data payload
3785 * Context: user.
3786 */
3787static void
3788_scsih_sas_topology_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
3789 Mpi2EventDataSasTopologyChangeList_t *event_data)
3790{
3791 int i;
3792 u16 handle;
3793 u16 reason_code;
3794 u8 phy_number;
3795 char *status_str = NULL;
3796 char link_rate[25];
3797
3798 switch (event_data->ExpStatus) {
3799 case MPI2_EVENT_SAS_TOPO_ES_ADDED:
3800 status_str = "add";
3801 break;
3802 case MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING:
3803 status_str = "remove";
3804 break;
3805 case MPI2_EVENT_SAS_TOPO_ES_RESPONDING:
3806 status_str = "responding";
3807 break;
3808 case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
3809 status_str = "remove delay";
3810 break;
3811 default:
3812 status_str = "unknown status";
3813 break;
3814 }
3815 printk(MPT2SAS_DEBUG_FMT "sas topology change: (%s)\n",
3816 ioc->name, status_str);
3817 printk(KERN_DEBUG "\thandle(0x%04x), enclosure_handle(0x%04x) "
3818 "start_phy(%02d), count(%d)\n",
3819 le16_to_cpu(event_data->ExpanderDevHandle),
3820 le16_to_cpu(event_data->EnclosureHandle),
3821 event_data->StartPhyNum, event_data->NumEntries);
3822 for (i = 0; i < event_data->NumEntries; i++) {
3823 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
3824 if (!handle)
3825 continue;
3826 phy_number = event_data->StartPhyNum + i;
3827 reason_code = event_data->PHY[i].PhyStatus &
3828 MPI2_EVENT_SAS_TOPO_RC_MASK;
3829 switch (reason_code) {
3830 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
3831 snprintf(link_rate, 25, ": add, link(0x%02x)",
3832 (event_data->PHY[i].LinkRate >> 4));
3833 status_str = link_rate;
3834 break;
3835 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
3836 status_str = ": remove";
3837 break;
3838 case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
3839 status_str = ": remove_delay";
3840 break;
3841 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
3842 snprintf(link_rate, 25, ": link(0x%02x)",
3843 (event_data->PHY[i].LinkRate >> 4));
3844 status_str = link_rate;
3845 break;
3846 case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
3847 status_str = ": responding";
3848 break;
3849 default:
3850 status_str = ": unknown";
3851 break;
3852 }
3853 printk(KERN_DEBUG "\tphy(%02d), attached_handle(0x%04x)%s\n",
3854 phy_number, handle, status_str);
3855 }
3856}
3857#endif
3858
3859/**
3860 * _scsih_sas_topology_change_event - handle topology changes
3861 * @ioc: per adapter object
3862 * @VF_ID:
3863 * @event_data: event data payload
3864 * fw_event:
3865 * Context: user.
3866 *
3867 */
3868static void
3869_scsih_sas_topology_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
3870 Mpi2EventDataSasTopologyChangeList_t *event_data,
3871 struct fw_event_work *fw_event)
3872{
3873 int i;
3874 u16 parent_handle, handle;
3875 u16 reason_code;
3876 u8 phy_number;
3877 struct _sas_node *sas_expander;
3878 unsigned long flags;
3879 u8 link_rate_;
3880
3881#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3882 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
3883 _scsih_sas_topology_change_event_debug(ioc, event_data);
3884#endif
3885
3886 if (!ioc->sas_hba.num_phys)
3887 _scsih_sas_host_add(ioc);
3888 else
3889 _scsih_sas_host_refresh(ioc, 0);
3890
3891 if (fw_event->ignore) {
3892 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "ignoring expander "
3893 "event\n", ioc->name));
3894 return;
3895 }
3896
3897 parent_handle = le16_to_cpu(event_data->ExpanderDevHandle);
3898
3899 /* handle expander add */
3900 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_ADDED)
3901 if (_scsih_expander_add(ioc, parent_handle) != 0)
3902 return;
3903
3904 /* handle siblings events */
3905 for (i = 0; i < event_data->NumEntries; i++) {
3906 if (fw_event->ignore) {
3907 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "ignoring "
3908 "expander event\n", ioc->name));
3909 return;
3910 }
3911 if (event_data->PHY[i].PhyStatus &
3912 MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT)
3913 continue;
3914 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
3915 if (!handle)
3916 continue;
3917 phy_number = event_data->StartPhyNum + i;
3918 reason_code = event_data->PHY[i].PhyStatus &
3919 MPI2_EVENT_SAS_TOPO_RC_MASK;
3920 link_rate_ = event_data->PHY[i].LinkRate >> 4;
3921 switch (reason_code) {
3922 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
3923 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
3924 if (!parent_handle) {
3925 if (phy_number < ioc->sas_hba.num_phys)
3926 _scsih_link_change(ioc,
3927 ioc->sas_hba.phy[phy_number].handle,
3928 handle, phy_number, link_rate_);
3929 } else {
3930 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3931 sas_expander =
3932 mpt2sas_scsih_expander_find_by_handle(ioc,
3933 parent_handle);
3934 spin_unlock_irqrestore(&ioc->sas_node_lock,
3935 flags);
3936 if (sas_expander) {
3937 if (phy_number < sas_expander->num_phys)
3938 _scsih_link_change(ioc,
3939 sas_expander->
3940 phy[phy_number].handle,
3941 handle, phy_number,
3942 link_rate_);
3943 }
3944 }
3945 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED) {
3946 if (link_rate_ >= MPI2_SAS_NEG_LINK_RATE_1_5)
3947 _scsih_ublock_io_device(ioc, handle);
3948 }
3949 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED) {
3950 if (link_rate_ < MPI2_SAS_NEG_LINK_RATE_1_5)
3951 break;
3952 _scsih_add_device(ioc, handle, phy_number, 0);
3953 }
3954 break;
3955 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
3956 _scsih_remove_device(ioc, handle);
3957 break;
3958 }
3959 }
3960
3961 /* handle expander removal */
3962 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
3963 _scsih_expander_remove(ioc, parent_handle);
3964
3965}
3966
3967#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3968/**
3969 * _scsih_sas_device_status_change_event_debug - debug for device event
3970 * @event_data: event data payload
3971 * Context: user.
3972 *
3973 * Return nothing.
3974 */
3975static void
3976_scsih_sas_device_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
3977 Mpi2EventDataSasDeviceStatusChange_t *event_data)
3978{
3979 char *reason_str = NULL;
3980
3981 switch (event_data->ReasonCode) {
3982 case MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA:
3983 reason_str = "smart data";
3984 break;
3985 case MPI2_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED:
3986 reason_str = "unsupported device discovered";
3987 break;
3988 case MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
3989 reason_str = "internal device reset";
3990 break;
3991 case MPI2_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL:
3992 reason_str = "internal task abort";
3993 break;
3994 case MPI2_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL:
3995 reason_str = "internal task abort set";
3996 break;
3997 case MPI2_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL:
3998 reason_str = "internal clear task set";
3999 break;
4000 case MPI2_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL:
4001 reason_str = "internal query task";
4002 break;
4003 case MPI2_EVENT_SAS_DEV_STAT_RC_SATA_INIT_FAILURE:
4004 reason_str = "sata init failure";
4005 break;
4006 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET:
4007 reason_str = "internal device reset complete";
4008 break;
4009 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_TASK_ABORT_INTERNAL:
4010 reason_str = "internal task abort complete";
4011 break;
4012 case MPI2_EVENT_SAS_DEV_STAT_RC_ASYNC_NOTIFICATION:
4013 reason_str = "internal async notification";
4014 break;
4015 default:
4016 reason_str = "unknown reason";
4017 break;
4018 }
4019 printk(MPT2SAS_DEBUG_FMT "device status change: (%s)\n"
4020 "\thandle(0x%04x), sas address(0x%016llx)", ioc->name,
4021 reason_str, le16_to_cpu(event_data->DevHandle),
4022 (unsigned long long)le64_to_cpu(event_data->SASAddress));
4023 if (event_data->ReasonCode == MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA)
4024 printk(MPT2SAS_DEBUG_FMT ", ASC(0x%x), ASCQ(0x%x)\n", ioc->name,
4025 event_data->ASC, event_data->ASCQ);
4026 printk(KERN_INFO "\n");
4027}
4028#endif
4029
4030/**
4031 * _scsih_sas_device_status_change_event - handle device status change
4032 * @ioc: per adapter object
4033 * @VF_ID:
4034 * @event_data: event data payload
4035 * Context: user.
4036 *
4037 * Return nothing.
4038 */
4039static void
4040_scsih_sas_device_status_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4041 Mpi2EventDataSasDeviceStatusChange_t *event_data)
4042{
4043#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4044 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4045 _scsih_sas_device_status_change_event_debug(ioc, event_data);
4046#endif
4047}
4048
4049#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4050/**
4051 * _scsih_sas_enclosure_dev_status_change_event_debug - debug for enclosure event
4052 * @ioc: per adapter object
4053 * @event_data: event data payload
4054 * Context: user.
4055 *
4056 * Return nothing.
4057 */
4058static void
4059_scsih_sas_enclosure_dev_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
4060 Mpi2EventDataSasEnclDevStatusChange_t *event_data)
4061{
4062 char *reason_str = NULL;
4063
4064 switch (event_data->ReasonCode) {
4065 case MPI2_EVENT_SAS_ENCL_RC_ADDED:
4066 reason_str = "enclosure add";
4067 break;
4068 case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING:
4069 reason_str = "enclosure remove";
4070 break;
4071 default:
4072 reason_str = "unknown reason";
4073 break;
4074 }
4075
4076 printk(MPT2SAS_DEBUG_FMT "enclosure status change: (%s)\n"
4077 "\thandle(0x%04x), enclosure logical id(0x%016llx)"
4078 " number slots(%d)\n", ioc->name, reason_str,
4079 le16_to_cpu(event_data->EnclosureHandle),
4080 (unsigned long long)le64_to_cpu(event_data->EnclosureLogicalID),
4081 le16_to_cpu(event_data->StartSlot));
4082}
4083#endif
4084
4085/**
4086 * _scsih_sas_enclosure_dev_status_change_event - handle enclosure events
4087 * @ioc: per adapter object
4088 * @VF_ID:
4089 * @event_data: event data payload
4090 * Context: user.
4091 *
4092 * Return nothing.
4093 */
4094static void
4095_scsih_sas_enclosure_dev_status_change_event(struct MPT2SAS_ADAPTER *ioc,
4096 u8 VF_ID, Mpi2EventDataSasEnclDevStatusChange_t *event_data)
4097{
4098#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4099 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4100 _scsih_sas_enclosure_dev_status_change_event_debug(ioc,
4101 event_data);
4102#endif
4103}
4104
4105/**
4106 * _scsih_sas_broadcast_primative_event - handle broadcast events
4107 * @ioc: per adapter object
4108 * @event_data: event data payload
4109 * Context: user.
4110 *
4111 * Return nothing.
4112 */
4113static void
4114_scsih_sas_broadcast_primative_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4115 Mpi2EventDataSasBroadcastPrimitive_t *event_data)
4116{
4117 struct scsi_cmnd *scmd;
4118 u16 smid, handle;
4119 u32 lun;
4120 struct MPT2SAS_DEVICE *sas_device_priv_data;
4121 u32 termination_count;
4122 u32 query_count;
4123 Mpi2SCSITaskManagementReply_t *mpi_reply;
4124
4125 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "broadcast primative: "
4126 "phy number(%d), width(%d)\n", ioc->name, event_data->PhyNum,
4127 event_data->PortWidth));
4128
4129 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name,
4130 __func__));
4131
4132 mutex_lock(&ioc->tm_cmds.mutex);
4133 termination_count = 0;
4134 query_count = 0;
4135 mpi_reply = ioc->tm_cmds.reply;
4136 for (smid = 1; smid <= ioc->request_depth; smid++) {
4137 scmd = _scsih_scsi_lookup_get(ioc, smid);
4138 if (!scmd)
4139 continue;
4140 sas_device_priv_data = scmd->device->hostdata;
4141 if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
4142 continue;
4143 /* skip hidden raid components */
4144 if (sas_device_priv_data->sas_target->flags &
4145 MPT_TARGET_FLAGS_RAID_COMPONENT)
4146 continue;
4147 /* skip volumes */
4148 if (sas_device_priv_data->sas_target->flags &
4149 MPT_TARGET_FLAGS_VOLUME)
4150 continue;
4151
4152 handle = sas_device_priv_data->sas_target->handle;
4153 lun = sas_device_priv_data->lun;
4154 query_count++;
4155
4156 mpt2sas_scsih_issue_tm(ioc, handle, lun,
4157 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30);
4158 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
4159
4160 if ((mpi_reply->IOCStatus == MPI2_IOCSTATUS_SUCCESS) &&
4161 (mpi_reply->ResponseCode ==
4162 MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
4163 mpi_reply->ResponseCode ==
4164 MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC))
4165 continue;
4166
4167 mpt2sas_scsih_issue_tm(ioc, handle, lun,
4168 MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET, 0, 30);
4169 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
4170 termination_count += le32_to_cpu(mpi_reply->TerminationCount);
4171 }
4172 ioc->broadcast_aen_busy = 0;
4173 mutex_unlock(&ioc->tm_cmds.mutex);
4174
4175 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT
4176 "%s - exit, query_count = %d termination_count = %d\n",
4177 ioc->name, __func__, query_count, termination_count));
4178}
4179
4180/**
4181 * _scsih_sas_discovery_event - handle discovery events
4182 * @ioc: per adapter object
4183 * @event_data: event data payload
4184 * Context: user.
4185 *
4186 * Return nothing.
4187 */
4188static void
4189_scsih_sas_discovery_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4190 Mpi2EventDataSasDiscovery_t *event_data)
4191{
4192#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4193 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) {
4194 printk(MPT2SAS_DEBUG_FMT "discovery event: (%s)", ioc->name,
4195 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
4196 "start" : "stop");
4197 if (event_data->DiscoveryStatus)
4198 printk(MPT2SAS_DEBUG_FMT ", discovery_status(0x%08x)",
4199 ioc->name, le32_to_cpu(event_data->DiscoveryStatus));
4200 printk("\n");
4201 }
4202#endif
4203
4204 if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED &&
4205 !ioc->sas_hba.num_phys)
4206 _scsih_sas_host_add(ioc);
4207}
4208
4209/**
4210 * _scsih_reprobe_lun - reprobing lun
4211 * @sdev: scsi device struct
4212 * @no_uld_attach: sdev->no_uld_attach flag setting
4213 *
4214 **/
4215static void
4216_scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach)
4217{
4218 int rc;
4219
4220 sdev->no_uld_attach = no_uld_attach ? 1 : 0;
4221 sdev_printk(KERN_INFO, sdev, "%s raid component\n",
4222 sdev->no_uld_attach ? "hidding" : "exposing");
4223 rc = scsi_device_reprobe(sdev);
4224}
4225
4226/**
4227 * _scsih_reprobe_target - reprobing target
4228 * @starget: scsi target struct
4229 * @no_uld_attach: sdev->no_uld_attach flag setting
4230 *
4231 * Note: no_uld_attach flag determines whether the disk device is attached
4232 * to block layer. A value of `1` means to not attach.
4233 **/
4234static void
4235_scsih_reprobe_target(struct scsi_target *starget, int no_uld_attach)
4236{
4237 struct MPT2SAS_TARGET *sas_target_priv_data = starget->hostdata;
4238
4239 if (no_uld_attach)
4240 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_RAID_COMPONENT;
4241 else
4242 sas_target_priv_data->flags &= ~MPT_TARGET_FLAGS_RAID_COMPONENT;
4243
4244 starget_for_each_device(starget, no_uld_attach ? (void *)1 : NULL,
4245 _scsih_reprobe_lun);
4246}
4247/**
4248 * _scsih_sas_volume_add - add new volume
4249 * @ioc: per adapter object
4250 * @element: IR config element data
4251 * Context: user.
4252 *
4253 * Return nothing.
4254 */
4255static void
4256_scsih_sas_volume_add(struct MPT2SAS_ADAPTER *ioc,
4257 Mpi2EventIrConfigElement_t *element)
4258{
4259 struct _raid_device *raid_device;
4260 unsigned long flags;
4261 u64 wwid;
4262 u16 handle = le16_to_cpu(element->VolDevHandle);
4263 int rc;
4264
4265 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
4266 if (!wwid) {
4267 printk(MPT2SAS_ERR_FMT
4268 "failure at %s:%d/%s()!\n", ioc->name,
4269 __FILE__, __LINE__, __func__);
4270 return;
4271 }
4272
4273 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4274 raid_device = _scsih_raid_device_find_by_wwid(ioc, wwid);
4275 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4276
4277 if (raid_device)
4278 return;
4279
4280 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
4281 if (!raid_device) {
4282 printk(MPT2SAS_ERR_FMT
4283 "failure at %s:%d/%s()!\n", ioc->name,
4284 __FILE__, __LINE__, __func__);
4285 return;
4286 }
4287
4288 raid_device->id = ioc->sas_id++;
4289 raid_device->channel = RAID_CHANNEL;
4290 raid_device->handle = handle;
4291 raid_device->wwid = wwid;
4292 _scsih_raid_device_add(ioc, raid_device);
4293 if (!ioc->wait_for_port_enable_to_complete) {
4294 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
4295 raid_device->id, 0);
4296 if (rc)
4297 _scsih_raid_device_remove(ioc, raid_device);
4298 } else
4299 _scsih_determine_boot_device(ioc, raid_device, 1);
4300}
4301
4302/**
4303 * _scsih_sas_volume_delete - delete volume
4304 * @ioc: per adapter object
4305 * @element: IR config element data
4306 * Context: user.
4307 *
4308 * Return nothing.
4309 */
4310static void
4311_scsih_sas_volume_delete(struct MPT2SAS_ADAPTER *ioc,
4312 Mpi2EventIrConfigElement_t *element)
4313{
4314 struct _raid_device *raid_device;
4315 u16 handle = le16_to_cpu(element->VolDevHandle);
4316 unsigned long flags;
4317 struct MPT2SAS_TARGET *sas_target_priv_data;
4318
4319 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4320 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
4321 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4322 if (!raid_device)
4323 return;
4324 if (raid_device->starget) {
4325 sas_target_priv_data = raid_device->starget->hostdata;
4326 sas_target_priv_data->deleted = 1;
4327 scsi_remove_target(&raid_device->starget->dev);
4328 }
4329 _scsih_raid_device_remove(ioc, raid_device);
4330}
4331
4332/**
4333 * _scsih_sas_pd_expose - expose pd component to /dev/sdX
4334 * @ioc: per adapter object
4335 * @element: IR config element data
4336 * Context: user.
4337 *
4338 * Return nothing.
4339 */
4340static void
4341_scsih_sas_pd_expose(struct MPT2SAS_ADAPTER *ioc,
4342 Mpi2EventIrConfigElement_t *element)
4343{
4344 struct _sas_device *sas_device;
4345 unsigned long flags;
4346 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4347
4348 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4349 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4350 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4351 if (!sas_device)
4352 return;
4353
4354 /* exposing raid component */
4355 sas_device->volume_handle = 0;
4356 sas_device->volume_wwid = 0;
4357 sas_device->hidden_raid_component = 0;
4358 _scsih_reprobe_target(sas_device->starget, 0);
4359}
4360
4361/**
4362 * _scsih_sas_pd_hide - hide pd component from /dev/sdX
4363 * @ioc: per adapter object
4364 * @element: IR config element data
4365 * Context: user.
4366 *
4367 * Return nothing.
4368 */
4369static void
4370_scsih_sas_pd_hide(struct MPT2SAS_ADAPTER *ioc,
4371 Mpi2EventIrConfigElement_t *element)
4372{
4373 struct _sas_device *sas_device;
4374 unsigned long flags;
4375 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4376
4377 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4378 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4379 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4380 if (!sas_device)
4381 return;
4382
4383 /* hiding raid component */
4384 mpt2sas_config_get_volume_handle(ioc, handle,
4385 &sas_device->volume_handle);
4386 mpt2sas_config_get_volume_wwid(ioc, sas_device->volume_handle,
4387 &sas_device->volume_wwid);
4388 sas_device->hidden_raid_component = 1;
4389 _scsih_reprobe_target(sas_device->starget, 1);
4390}
4391
4392/**
4393 * _scsih_sas_pd_delete - delete pd component
4394 * @ioc: per adapter object
4395 * @element: IR config element data
4396 * Context: user.
4397 *
4398 * Return nothing.
4399 */
4400static void
4401_scsih_sas_pd_delete(struct MPT2SAS_ADAPTER *ioc,
4402 Mpi2EventIrConfigElement_t *element)
4403{
4404 struct _sas_device *sas_device;
4405 unsigned long flags;
4406 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4407
4408 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4409 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4410 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4411 if (!sas_device)
4412 return;
4413 _scsih_remove_device(ioc, handle);
4414}
4415
4416/**
4417 * _scsih_sas_pd_add - remove pd component
4418 * @ioc: per adapter object
4419 * @element: IR config element data
4420 * Context: user.
4421 *
4422 * Return nothing.
4423 */
4424static void
4425_scsih_sas_pd_add(struct MPT2SAS_ADAPTER *ioc,
4426 Mpi2EventIrConfigElement_t *element)
4427{
4428 struct _sas_device *sas_device;
4429 unsigned long flags;
4430 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4431 Mpi2ConfigReply_t mpi_reply;
4432 Mpi2SasDevicePage0_t sas_device_pg0;
4433 u32 ioc_status;
4434
4435 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4436 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4437 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4438 if (sas_device) {
4439 sas_device->hidden_raid_component = 1;
4440 return;
4441 }
4442
4443 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
4444 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
4445 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4446 ioc->name, __FILE__, __LINE__, __func__);
4447 return;
4448 }
4449
4450 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4451 MPI2_IOCSTATUS_MASK;
4452 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4453 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4454 ioc->name, __FILE__, __LINE__, __func__);
4455 return;
4456 }
4457
4458 _scsih_link_change(ioc,
4459 le16_to_cpu(sas_device_pg0.ParentDevHandle),
4460 handle, sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
4461
4462 _scsih_add_device(ioc, handle, 0, 1);
4463}
4464
4465#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4466/**
4467 * _scsih_sas_ir_config_change_event_debug - debug for IR Config Change events
4468 * @ioc: per adapter object
4469 * @event_data: event data payload
4470 * Context: user.
4471 *
4472 * Return nothing.
4473 */
4474static void
4475_scsih_sas_ir_config_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
4476 Mpi2EventDataIrConfigChangeList_t *event_data)
4477{
4478 Mpi2EventIrConfigElement_t *element;
4479 u8 element_type;
4480 int i;
4481 char *reason_str = NULL, *element_str = NULL;
4482
4483 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
4484
4485 printk(MPT2SAS_DEBUG_FMT "raid config change: (%s), elements(%d)\n",
4486 ioc->name, (le32_to_cpu(event_data->Flags) &
4487 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ?
4488 "foreign" : "native", event_data->NumElements);
4489 for (i = 0; i < event_data->NumElements; i++, element++) {
4490 switch (element->ReasonCode) {
4491 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
4492 reason_str = "add";
4493 break;
4494 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
4495 reason_str = "remove";
4496 break;
4497 case MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE:
4498 reason_str = "no change";
4499 break;
4500 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
4501 reason_str = "hide";
4502 break;
4503 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
4504 reason_str = "unhide";
4505 break;
4506 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
4507 reason_str = "volume_created";
4508 break;
4509 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
4510 reason_str = "volume_deleted";
4511 break;
4512 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
4513 reason_str = "pd_created";
4514 break;
4515 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
4516 reason_str = "pd_deleted";
4517 break;
4518 default:
4519 reason_str = "unknown reason";
4520 break;
4521 }
4522 element_type = le16_to_cpu(element->ElementFlags) &
4523 MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
4524 switch (element_type) {
4525 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT:
4526 element_str = "volume";
4527 break;
4528 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT:
4529 element_str = "phys disk";
4530 break;
4531 case MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT:
4532 element_str = "hot spare";
4533 break;
4534 default:
4535 element_str = "unknown element";
4536 break;
4537 }
4538 printk(KERN_DEBUG "\t(%s:%s), vol handle(0x%04x), "
4539 "pd handle(0x%04x), pd num(0x%02x)\n", element_str,
4540 reason_str, le16_to_cpu(element->VolDevHandle),
4541 le16_to_cpu(element->PhysDiskDevHandle),
4542 element->PhysDiskNum);
4543 }
4544}
4545#endif
4546
4547/**
4548 * _scsih_sas_ir_config_change_event - handle ir configuration change events
4549 * @ioc: per adapter object
4550 * @VF_ID:
4551 * @event_data: event data payload
4552 * Context: user.
4553 *
4554 * Return nothing.
4555 */
4556static void
4557_scsih_sas_ir_config_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4558 Mpi2EventDataIrConfigChangeList_t *event_data)
4559{
4560 Mpi2EventIrConfigElement_t *element;
4561 int i;
4562 u8 foreign_config;
4563
4564#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4565 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4566 _scsih_sas_ir_config_change_event_debug(ioc, event_data);
4567
4568#endif
4569 foreign_config = (le32_to_cpu(event_data->Flags) &
4570 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
4571
4572 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
4573 for (i = 0; i < event_data->NumElements; i++, element++) {
4574
4575 switch (element->ReasonCode) {
4576 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
4577 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
4578 if (!foreign_config)
4579 _scsih_sas_volume_add(ioc, element);
4580 break;
4581 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
4582 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
4583 if (!foreign_config)
4584 _scsih_sas_volume_delete(ioc, element);
4585 break;
4586 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
4587 _scsih_sas_pd_hide(ioc, element);
4588 break;
4589 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
4590 _scsih_sas_pd_expose(ioc, element);
4591 break;
4592 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
4593 _scsih_sas_pd_add(ioc, element);
4594 break;
4595 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
4596 _scsih_sas_pd_delete(ioc, element);
4597 break;
4598 }
4599 }
4600}
4601
4602/**
4603 * _scsih_sas_ir_volume_event - IR volume event
4604 * @ioc: per adapter object
4605 * @event_data: event data payload
4606 * Context: user.
4607 *
4608 * Return nothing.
4609 */
4610static void
4611_scsih_sas_ir_volume_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4612 Mpi2EventDataIrVolume_t *event_data)
4613{
4614 u64 wwid;
4615 unsigned long flags;
4616 struct _raid_device *raid_device;
4617 u16 handle;
4618 u32 state;
4619 int rc;
4620 struct MPT2SAS_TARGET *sas_target_priv_data;
4621
4622 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
4623 return;
4624
4625 handle = le16_to_cpu(event_data->VolDevHandle);
4626 state = le32_to_cpu(event_data->NewValue);
4627 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle(0x%04x), "
4628 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
4629 le32_to_cpu(event_data->PreviousValue), state));
4630
4631 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4632 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
4633 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4634
4635 switch (state) {
4636 case MPI2_RAID_VOL_STATE_MISSING:
4637 case MPI2_RAID_VOL_STATE_FAILED:
4638 if (!raid_device)
4639 break;
4640 if (raid_device->starget) {
4641 sas_target_priv_data = raid_device->starget->hostdata;
4642 sas_target_priv_data->deleted = 1;
4643 scsi_remove_target(&raid_device->starget->dev);
4644 }
4645 _scsih_raid_device_remove(ioc, raid_device);
4646 break;
4647
4648 case MPI2_RAID_VOL_STATE_ONLINE:
4649 case MPI2_RAID_VOL_STATE_DEGRADED:
4650 case MPI2_RAID_VOL_STATE_OPTIMAL:
4651 if (raid_device)
4652 break;
4653
4654 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
4655 if (!wwid) {
4656 printk(MPT2SAS_ERR_FMT
4657 "failure at %s:%d/%s()!\n", ioc->name,
4658 __FILE__, __LINE__, __func__);
4659 break;
4660 }
4661
4662 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
4663 if (!raid_device) {
4664 printk(MPT2SAS_ERR_FMT
4665 "failure at %s:%d/%s()!\n", ioc->name,
4666 __FILE__, __LINE__, __func__);
4667 break;
4668 }
4669
4670 raid_device->id = ioc->sas_id++;
4671 raid_device->channel = RAID_CHANNEL;
4672 raid_device->handle = handle;
4673 raid_device->wwid = wwid;
4674 _scsih_raid_device_add(ioc, raid_device);
4675 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
4676 raid_device->id, 0);
4677 if (rc)
4678 _scsih_raid_device_remove(ioc, raid_device);
4679 break;
4680
4681 case MPI2_RAID_VOL_STATE_INITIALIZING:
4682 default:
4683 break;
4684 }
4685}
4686
4687/**
4688 * _scsih_sas_ir_physical_disk_event - PD event
4689 * @ioc: per adapter object
4690 * @event_data: event data payload
4691 * Context: user.
4692 *
4693 * Return nothing.
4694 */
4695static void
4696_scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4697 Mpi2EventDataIrPhysicalDisk_t *event_data)
4698{
4699 u16 handle;
4700 u32 state;
4701 struct _sas_device *sas_device;
4702 unsigned long flags;
4703 Mpi2ConfigReply_t mpi_reply;
4704 Mpi2SasDevicePage0_t sas_device_pg0;
4705 u32 ioc_status;
4706
4707 if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED)
4708 return;
4709
4710 handle = le16_to_cpu(event_data->PhysDiskDevHandle);
4711 state = le32_to_cpu(event_data->NewValue);
4712
4713 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle(0x%04x), "
4714 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
4715 le32_to_cpu(event_data->PreviousValue), state));
4716
4717 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4718 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4719 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4720
4721 switch (state) {
4722 case MPI2_RAID_PD_STATE_ONLINE:
4723 case MPI2_RAID_PD_STATE_DEGRADED:
4724 case MPI2_RAID_PD_STATE_REBUILDING:
4725 case MPI2_RAID_PD_STATE_OPTIMAL:
4726 if (sas_device) {
4727 sas_device->hidden_raid_component = 1;
4728 return;
4729 }
4730
4731 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
4732 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
4733 handle))) {
4734 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4735 ioc->name, __FILE__, __LINE__, __func__);
4736 return;
4737 }
4738
4739 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4740 MPI2_IOCSTATUS_MASK;
4741 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4742 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4743 ioc->name, __FILE__, __LINE__, __func__);
4744 return;
4745 }
4746
4747 _scsih_link_change(ioc,
4748 le16_to_cpu(sas_device_pg0.ParentDevHandle),
4749 handle, sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
4750
4751 _scsih_add_device(ioc, handle, 0, 1);
4752
4753 break;
4754
4755 case MPI2_RAID_PD_STATE_OFFLINE:
4756 case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
4757 case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
4758 case MPI2_RAID_PD_STATE_HOT_SPARE:
4759 default:
4760 break;
4761 }
4762}
4763
4764#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4765/**
4766 * _scsih_sas_ir_operation_status_event_debug - debug for IR op event
4767 * @ioc: per adapter object
4768 * @event_data: event data payload
4769 * Context: user.
4770 *
4771 * Return nothing.
4772 */
4773static void
4774_scsih_sas_ir_operation_status_event_debug(struct MPT2SAS_ADAPTER *ioc,
4775 Mpi2EventDataIrOperationStatus_t *event_data)
4776{
4777 char *reason_str = NULL;
4778
4779 switch (event_data->RAIDOperation) {
4780 case MPI2_EVENT_IR_RAIDOP_RESYNC:
4781 reason_str = "resync";
4782 break;
4783 case MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION:
4784 reason_str = "online capacity expansion";
4785 break;
4786 case MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK:
4787 reason_str = "consistency check";
4788 break;
4789 default:
4790 reason_str = "unknown reason";
4791 break;
4792 }
4793
4794 printk(MPT2SAS_INFO_FMT "raid operational status: (%s)"
4795 "\thandle(0x%04x), percent complete(%d)\n",
4796 ioc->name, reason_str,
4797 le16_to_cpu(event_data->VolDevHandle),
4798 event_data->PercentComplete);
4799}
4800#endif
4801
4802/**
4803 * _scsih_sas_ir_operation_status_event - handle RAID operation events
4804 * @ioc: per adapter object
4805 * @VF_ID:
4806 * @event_data: event data payload
4807 * Context: user.
4808 *
4809 * Return nothing.
4810 */
4811static void
4812_scsih_sas_ir_operation_status_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4813 Mpi2EventDataIrOperationStatus_t *event_data)
4814{
4815#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4816 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4817 _scsih_sas_ir_operation_status_event_debug(ioc, event_data);
4818#endif
4819}
4820
4821/**
4822 * _scsih_task_set_full - handle task set full
4823 * @ioc: per adapter object
4824 * @event_data: event data payload
4825 * Context: user.
4826 *
4827 * Throttle back qdepth.
4828 */
4829static void
4830_scsih_task_set_full(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4831 Mpi2EventDataTaskSetFull_t *event_data)
4832{
4833 unsigned long flags;
4834 struct _sas_device *sas_device;
4835 static struct _raid_device *raid_device;
4836 struct scsi_device *sdev;
4837 int depth;
4838 u16 current_depth;
4839 u16 handle;
4840 int id, channel;
4841 u64 sas_address;
4842
4843 current_depth = le16_to_cpu(event_data->CurrentDepth);
4844 handle = le16_to_cpu(event_data->DevHandle);
4845 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4846 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4847 if (!sas_device) {
4848 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4849 return;
4850 }
4851 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4852 id = sas_device->id;
4853 channel = sas_device->channel;
4854 sas_address = sas_device->sas_address;
4855
4856 /* if hidden raid component, then change to volume characteristics */
4857 if (sas_device->hidden_raid_component && sas_device->volume_handle) {
4858 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4859 raid_device = _scsih_raid_device_find_by_handle(
4860 ioc, sas_device->volume_handle);
4861 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4862 if (raid_device) {
4863 id = raid_device->id;
4864 channel = raid_device->channel;
4865 handle = raid_device->handle;
4866 sas_address = raid_device->wwid;
4867 }
4868 }
4869
4870 if (ioc->logging_level & MPT_DEBUG_TASK_SET_FULL)
4871 starget_printk(KERN_DEBUG, sas_device->starget, "task set "
4872 "full: handle(0x%04x), sas_addr(0x%016llx), depth(%d)\n",
4873 handle, (unsigned long long)sas_address, current_depth);
4874
4875 shost_for_each_device(sdev, ioc->shost) {
4876 if (sdev->id == id && sdev->channel == channel) {
4877 if (current_depth > sdev->queue_depth) {
4878 if (ioc->logging_level &
4879 MPT_DEBUG_TASK_SET_FULL)
4880 sdev_printk(KERN_INFO, sdev, "strange "
4881 "observation, the queue depth is"
4882 " (%d) meanwhile fw queue depth "
4883 "is (%d)\n", sdev->queue_depth,
4884 current_depth);
4885 continue;
4886 }
4887 depth = scsi_track_queue_full(sdev,
4888 current_depth - 1);
4889 if (depth > 0)
4890 sdev_printk(KERN_INFO, sdev, "Queue depth "
4891 "reduced to (%d)\n", depth);
4892 else if (depth < 0)
4893 sdev_printk(KERN_INFO, sdev, "Tagged Command "
4894 "Queueing is being disabled\n");
4895 else if (depth == 0)
4896 if (ioc->logging_level &
4897 MPT_DEBUG_TASK_SET_FULL)
4898 sdev_printk(KERN_INFO, sdev,
4899 "Queue depth not changed yet\n");
4900 }
4901 }
4902}
4903
4904/**
4905 * _scsih_mark_responding_sas_device - mark a sas_devices as responding
4906 * @ioc: per adapter object
4907 * @sas_address: sas address
4908 * @slot: enclosure slot id
4909 * @handle: device handle
4910 *
4911 * After host reset, find out whether devices are still responding.
4912 * Used in _scsi_remove_unresponsive_sas_devices.
4913 *
4914 * Return nothing.
4915 */
4916static void
4917_scsih_mark_responding_sas_device(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
4918 u16 slot, u16 handle)
4919{
4920 struct MPT2SAS_TARGET *sas_target_priv_data;
4921 struct scsi_target *starget;
4922 struct _sas_device *sas_device;
4923 unsigned long flags;
4924
4925 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4926 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
4927 if (sas_device->sas_address == sas_address &&
4928 sas_device->slot == slot && sas_device->starget) {
4929 sas_device->responding = 1;
4930 starget_printk(KERN_INFO, sas_device->starget,
4931 "handle(0x%04x), sas_addr(0x%016llx), enclosure "
4932 "logical id(0x%016llx), slot(%d)\n", handle,
4933 (unsigned long long)sas_device->sas_address,
4934 (unsigned long long)
4935 sas_device->enclosure_logical_id,
4936 sas_device->slot);
4937 if (sas_device->handle == handle)
4938 goto out;
4939 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
4940 sas_device->handle);
4941 sas_device->handle = handle;
4942 starget = sas_device->starget;
4943 sas_target_priv_data = starget->hostdata;
4944 sas_target_priv_data->handle = handle;
4945 goto out;
4946 }
4947 }
4948 out:
4949 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4950}
4951
4952/**
4953 * _scsih_search_responding_sas_devices -
4954 * @ioc: per adapter object
4955 *
4956 * After host reset, find out whether devices are still responding.
4957 * If not remove.
4958 *
4959 * Return nothing.
4960 */
4961static void
4962_scsih_search_responding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
4963{
4964 Mpi2SasDevicePage0_t sas_device_pg0;
4965 Mpi2ConfigReply_t mpi_reply;
4966 u16 ioc_status;
4967 __le64 sas_address;
4968 u16 handle;
4969 u32 device_info;
4970 u16 slot;
4971
4972 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
4973
4974 if (list_empty(&ioc->sas_device_list))
4975 return;
4976
4977 handle = 0xFFFF;
4978 while (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
4979 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
4980 handle))) {
4981 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4982 MPI2_IOCSTATUS_MASK;
4983 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
4984 break;
4985 handle = le16_to_cpu(sas_device_pg0.DevHandle);
4986 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
4987 if (!(_scsih_is_end_device(device_info)))
4988 continue;
4989 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4990 slot = le16_to_cpu(sas_device_pg0.Slot);
4991 _scsih_mark_responding_sas_device(ioc, sas_address, slot,
4992 handle);
4993 }
4994}
4995
4996/**
4997 * _scsih_mark_responding_raid_device - mark a raid_device as responding
4998 * @ioc: per adapter object
4999 * @wwid: world wide identifier for raid volume
5000 * @handle: device handle
5001 *
5002 * After host reset, find out whether devices are still responding.
5003 * Used in _scsi_remove_unresponsive_raid_devices.
5004 *
5005 * Return nothing.
5006 */
5007static void
5008_scsih_mark_responding_raid_device(struct MPT2SAS_ADAPTER *ioc, u64 wwid,
5009 u16 handle)
5010{
5011 struct MPT2SAS_TARGET *sas_target_priv_data;
5012 struct scsi_target *starget;
5013 struct _raid_device *raid_device;
5014 unsigned long flags;
5015
5016 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5017 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
5018 if (raid_device->wwid == wwid && raid_device->starget) {
5019 raid_device->responding = 1;
5020 starget_printk(KERN_INFO, raid_device->starget,
5021 "handle(0x%04x), wwid(0x%016llx)\n", handle,
5022 (unsigned long long)raid_device->wwid);
5023 if (raid_device->handle == handle)
5024 goto out;
5025 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
5026 raid_device->handle);
5027 raid_device->handle = handle;
5028 starget = raid_device->starget;
5029 sas_target_priv_data = starget->hostdata;
5030 sas_target_priv_data->handle = handle;
5031 goto out;
5032 }
5033 }
5034 out:
5035 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5036}
5037
5038/**
5039 * _scsih_search_responding_raid_devices -
5040 * @ioc: per adapter object
5041 *
5042 * After host reset, find out whether devices are still responding.
5043 * If not remove.
5044 *
5045 * Return nothing.
5046 */
5047static void
5048_scsih_search_responding_raid_devices(struct MPT2SAS_ADAPTER *ioc)
5049{
5050 Mpi2RaidVolPage1_t volume_pg1;
5051 Mpi2ConfigReply_t mpi_reply;
5052 u16 ioc_status;
5053 u16 handle;
5054
5055 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
5056
5057 if (list_empty(&ioc->raid_device_list))
5058 return;
5059
5060 handle = 0xFFFF;
5061 while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
5062 &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
5063 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5064 MPI2_IOCSTATUS_MASK;
5065 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
5066 break;
5067 handle = le16_to_cpu(volume_pg1.DevHandle);
5068 _scsih_mark_responding_raid_device(ioc,
5069 le64_to_cpu(volume_pg1.WWID), handle);
5070 }
5071}
5072
5073/**
5074 * _scsih_mark_responding_expander - mark a expander as responding
5075 * @ioc: per adapter object
5076 * @sas_address: sas address
5077 * @handle:
5078 *
5079 * After host reset, find out whether devices are still responding.
5080 * Used in _scsi_remove_unresponsive_expanders.
5081 *
5082 * Return nothing.
5083 */
5084static void
5085_scsih_mark_responding_expander(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
5086 u16 handle)
5087{
5088 struct _sas_node *sas_expander;
5089 unsigned long flags;
5090
5091 spin_lock_irqsave(&ioc->sas_node_lock, flags);
5092 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
5093 if (sas_expander->sas_address == sas_address) {
5094 sas_expander->responding = 1;
5095 if (sas_expander->handle != handle) {
5096 printk(KERN_INFO "old handle(0x%04x)\n",
5097 sas_expander->handle);
5098 sas_expander->handle = handle;
5099 }
5100 goto out;
5101 }
5102 }
5103 out:
5104 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
5105}
5106
5107/**
5108 * _scsih_search_responding_expanders -
5109 * @ioc: per adapter object
5110 *
5111 * After host reset, find out whether devices are still responding.
5112 * If not remove.
5113 *
5114 * Return nothing.
5115 */
5116static void
5117_scsih_search_responding_expanders(struct MPT2SAS_ADAPTER *ioc)
5118{
5119 Mpi2ExpanderPage0_t expander_pg0;
5120 Mpi2ConfigReply_t mpi_reply;
5121 u16 ioc_status;
5122 __le64 sas_address;
5123 u16 handle;
5124
5125 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
5126
5127 if (list_empty(&ioc->sas_expander_list))
5128 return;
5129
5130 handle = 0xFFFF;
5131 while (!(mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
5132 MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
5133
5134 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5135 MPI2_IOCSTATUS_MASK;
5136 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
5137 break;
5138
5139 handle = le16_to_cpu(expander_pg0.DevHandle);
5140 sas_address = le64_to_cpu(expander_pg0.SASAddress);
5141 printk(KERN_INFO "\texpander present: handle(0x%04x), "
5142 "sas_addr(0x%016llx)\n", handle,
5143 (unsigned long long)sas_address);
5144 _scsih_mark_responding_expander(ioc, sas_address, handle);
5145 }
5146
5147}
5148
5149/**
5150 * _scsih_remove_unresponding_devices - removing unresponding devices
5151 * @ioc: per adapter object
5152 *
5153 * Return nothing.
5154 */
5155static void
5156_scsih_remove_unresponding_devices(struct MPT2SAS_ADAPTER *ioc)
5157{
5158 struct _sas_device *sas_device, *sas_device_next;
5159 struct _sas_node *sas_expander, *sas_expander_next;
5160 struct _raid_device *raid_device, *raid_device_next;
5161 unsigned long flags;
5162
5163 _scsih_search_responding_sas_devices(ioc);
5164 _scsih_search_responding_raid_devices(ioc);
5165 _scsih_search_responding_expanders(ioc);
5166
5167 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
5168 ioc->shost_recovery = 0;
5169 if (ioc->shost->shost_state == SHOST_RECOVERY) {
5170 printk(MPT2SAS_INFO_FMT "putting controller into "
5171 "SHOST_RUNNING\n", ioc->name);
5172 scsi_host_set_state(ioc->shost, SHOST_RUNNING);
5173 }
5174 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
5175
5176 list_for_each_entry_safe(sas_device, sas_device_next,
5177 &ioc->sas_device_list, list) {
5178 if (sas_device->responding) {
5179 sas_device->responding = 0;
5180 continue;
5181 }
5182 if (sas_device->starget)
5183 starget_printk(KERN_INFO, sas_device->starget,
5184 "removing: handle(0x%04x), sas_addr(0x%016llx), "
5185 "enclosure logical id(0x%016llx), slot(%d)\n",
5186 sas_device->handle,
5187 (unsigned long long)sas_device->sas_address,
5188 (unsigned long long)
5189 sas_device->enclosure_logical_id,
5190 sas_device->slot);
5191 _scsih_remove_device(ioc, sas_device->handle);
5192 }
5193
5194 list_for_each_entry_safe(raid_device, raid_device_next,
5195 &ioc->raid_device_list, list) {
5196 if (raid_device->responding) {
5197 raid_device->responding = 0;
5198 continue;
5199 }
5200 if (raid_device->starget) {
5201 starget_printk(KERN_INFO, raid_device->starget,
5202 "removing: handle(0x%04x), wwid(0x%016llx)\n",
5203 raid_device->handle,
5204 (unsigned long long)raid_device->wwid);
5205 scsi_remove_target(&raid_device->starget->dev);
5206 }
5207 _scsih_raid_device_remove(ioc, raid_device);
5208 }
5209
5210 list_for_each_entry_safe(sas_expander, sas_expander_next,
5211 &ioc->sas_expander_list, list) {
5212 if (sas_expander->responding) {
5213 sas_expander->responding = 0;
5214 continue;
5215 }
5216 printk("\tremoving expander: handle(0x%04x), "
5217 " sas_addr(0x%016llx)\n", sas_expander->handle,
5218 (unsigned long long)sas_expander->sas_address);
5219 _scsih_expander_remove(ioc, sas_expander->handle);
5220 }
5221}
5222
5223/**
5224 * _firmware_event_work - delayed task for processing firmware events
5225 * @ioc: per adapter object
5226 * @work: equal to the fw_event_work object
5227 * Context: user.
5228 *
5229 * Return nothing.
5230 */
5231static void
5232_firmware_event_work(struct work_struct *work)
5233{
5234 struct fw_event_work *fw_event = container_of(work,
5235 struct fw_event_work, work);
5236 unsigned long flags;
5237 struct MPT2SAS_ADAPTER *ioc = fw_event->ioc;
5238
5239 /* This is invoked by calling _scsih_queue_rescan(). */
5240 if (fw_event->event == MPT2SAS_RESCAN_AFTER_HOST_RESET) {
5241 _scsih_fw_event_free(ioc, fw_event);
5242 _scsih_sas_host_refresh(ioc, 1);
5243 _scsih_remove_unresponding_devices(ioc);
5244 return;
5245 }
5246
5247 /* the queue is being flushed so ignore this event */
5248 spin_lock_irqsave(&ioc->fw_event_lock, flags);
5249 if (ioc->fw_events_off || ioc->remove_host) {
5250 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
5251 _scsih_fw_event_free(ioc, fw_event);
5252 return;
5253 }
5254 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
5255
5256 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
5257 if (ioc->shost_recovery) {
5258 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
5259 _scsih_fw_event_requeue(ioc, fw_event, 1000);
5260 return;
5261 }
5262 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
5263
5264 switch (fw_event->event) {
5265 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
5266 _scsih_sas_topology_change_event(ioc, fw_event->VF_ID,
5267 fw_event->event_data, fw_event);
5268 break;
5269 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
5270 _scsih_sas_device_status_change_event(ioc, fw_event->VF_ID,
5271 fw_event->event_data);
5272 break;
5273 case MPI2_EVENT_SAS_DISCOVERY:
5274 _scsih_sas_discovery_event(ioc, fw_event->VF_ID,
5275 fw_event->event_data);
5276 break;
5277 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
5278 _scsih_sas_broadcast_primative_event(ioc, fw_event->VF_ID,
5279 fw_event->event_data);
5280 break;
5281 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
5282 _scsih_sas_enclosure_dev_status_change_event(ioc,
5283 fw_event->VF_ID, fw_event->event_data);
5284 break;
5285 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
5286 _scsih_sas_ir_config_change_event(ioc, fw_event->VF_ID,
5287 fw_event->event_data);
5288 break;
5289 case MPI2_EVENT_IR_VOLUME:
5290 _scsih_sas_ir_volume_event(ioc, fw_event->VF_ID,
5291 fw_event->event_data);
5292 break;
5293 case MPI2_EVENT_IR_PHYSICAL_DISK:
5294 _scsih_sas_ir_physical_disk_event(ioc, fw_event->VF_ID,
5295 fw_event->event_data);
5296 break;
5297 case MPI2_EVENT_IR_OPERATION_STATUS:
5298 _scsih_sas_ir_operation_status_event(ioc, fw_event->VF_ID,
5299 fw_event->event_data);
5300 break;
5301 case MPI2_EVENT_TASK_SET_FULL:
5302 _scsih_task_set_full(ioc, fw_event->VF_ID,
5303 fw_event->event_data);
5304 break;
5305 }
5306 _scsih_fw_event_free(ioc, fw_event);
5307}
5308
5309/**
5310 * mpt2sas_scsih_event_callback - firmware event handler (called at ISR time)
5311 * @ioc: per adapter object
5312 * @VF_ID: virtual function id
5313 * @reply: reply message frame(lower 32bit addr)
5314 * Context: interrupt.
5315 *
5316 * This function merely adds a new work task into ioc->firmware_event_thread.
5317 * The tasks are worked from _firmware_event_work in user context.
5318 *
5319 * Return nothing.
5320 */
5321void
5322mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID, u32 reply)
5323{
5324 struct fw_event_work *fw_event;
5325 Mpi2EventNotificationReply_t *mpi_reply;
5326 unsigned long flags;
5327 u16 event;
5328
5329 /* events turned off due to host reset or driver unloading */
5330 spin_lock_irqsave(&ioc->fw_event_lock, flags);
5331 if (ioc->fw_events_off || ioc->remove_host) {
5332 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
5333 return;
5334 }
5335 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
5336
5337 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
5338 event = le16_to_cpu(mpi_reply->Event);
5339
5340 switch (event) {
5341 /* handle these */
5342 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
5343 {
5344 Mpi2EventDataSasBroadcastPrimitive_t *baen_data =
5345 (Mpi2EventDataSasBroadcastPrimitive_t *)
5346 mpi_reply->EventData;
5347
5348 if (baen_data->Primitive !=
5349 MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT ||
5350 ioc->broadcast_aen_busy)
5351 return;
5352 ioc->broadcast_aen_busy = 1;
5353 break;
5354 }
5355
5356 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
5357 _scsih_check_topo_delete_events(ioc,
5358 (Mpi2EventDataSasTopologyChangeList_t *)
5359 mpi_reply->EventData);
5360 break;
5361
5362 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
5363 case MPI2_EVENT_IR_OPERATION_STATUS:
5364 case MPI2_EVENT_SAS_DISCOVERY:
5365 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
5366 case MPI2_EVENT_IR_VOLUME:
5367 case MPI2_EVENT_IR_PHYSICAL_DISK:
5368 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
5369 case MPI2_EVENT_TASK_SET_FULL:
5370 break;
5371
5372 default: /* ignore the rest */
5373 return;
5374 }
5375
5376 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
5377 if (!fw_event) {
5378 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5379 ioc->name, __FILE__, __LINE__, __func__);
5380 return;
5381 }
5382 fw_event->event_data =
5383 kzalloc(mpi_reply->EventDataLength*4, GFP_ATOMIC);
5384 if (!fw_event->event_data) {
5385 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5386 ioc->name, __FILE__, __LINE__, __func__);
5387 kfree(fw_event);
5388 return;
5389 }
5390
5391 memcpy(fw_event->event_data, mpi_reply->EventData,
5392 mpi_reply->EventDataLength*4);
5393 fw_event->ioc = ioc;
5394 fw_event->VF_ID = VF_ID;
5395 fw_event->event = event;
5396 _scsih_fw_event_add(ioc, fw_event);
5397}
5398
5399/* shost template */
5400static struct scsi_host_template scsih_driver_template = {
5401 .module = THIS_MODULE,
5402 .name = "Fusion MPT SAS Host",
5403 .proc_name = MPT2SAS_DRIVER_NAME,
5404 .queuecommand = _scsih_qcmd,
5405 .target_alloc = _scsih_target_alloc,
5406 .slave_alloc = _scsih_slave_alloc,
5407 .slave_configure = _scsih_slave_configure,
5408 .target_destroy = _scsih_target_destroy,
5409 .slave_destroy = _scsih_slave_destroy,
5410 .change_queue_depth = _scsih_change_queue_depth,
5411 .change_queue_type = _scsih_change_queue_type,
5412 .eh_abort_handler = _scsih_abort,
5413 .eh_device_reset_handler = _scsih_dev_reset,
5414 .eh_target_reset_handler = _scsih_target_reset,
5415 .eh_host_reset_handler = _scsih_host_reset,
5416 .bios_param = _scsih_bios_param,
5417 .can_queue = 1,
5418 .this_id = -1,
5419 .sg_tablesize = MPT2SAS_SG_DEPTH,
5420 .max_sectors = 8192,
5421 .cmd_per_lun = 7,
5422 .use_clustering = ENABLE_CLUSTERING,
5423 .shost_attrs = mpt2sas_host_attrs,
5424 .sdev_attrs = mpt2sas_dev_attrs,
5425};
5426
5427/**
5428 * _scsih_expander_node_remove - removing expander device from list.
5429 * @ioc: per adapter object
5430 * @sas_expander: the sas_device object
5431 * Context: Calling function should acquire ioc->sas_node_lock.
5432 *
5433 * Removing object and freeing associated memory from the
5434 * ioc->sas_expander_list.
5435 *
5436 * Return nothing.
5437 */
5438static void
5439_scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
5440 struct _sas_node *sas_expander)
5441{
5442 struct _sas_port *mpt2sas_port;
5443 struct _sas_device *sas_device;
5444 struct _sas_node *expander_sibling;
5445 unsigned long flags;
5446
5447 if (!sas_expander)
5448 return;
5449
5450 /* remove sibling ports attached to this expander */
5451 retry_device_search:
5452 list_for_each_entry(mpt2sas_port,
5453 &sas_expander->sas_port_list, port_list) {
5454 if (mpt2sas_port->remote_identify.device_type ==
5455 SAS_END_DEVICE) {
5456 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5457 sas_device =
5458 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
5459 mpt2sas_port->remote_identify.sas_address);
5460 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5461 if (!sas_device)
5462 continue;
5463 _scsih_remove_device(ioc, sas_device->handle);
5464 goto retry_device_search;
5465 }
5466 }
5467
5468 retry_expander_search:
5469 list_for_each_entry(mpt2sas_port,
5470 &sas_expander->sas_port_list, port_list) {
5471
5472 if (mpt2sas_port->remote_identify.device_type ==
5473 MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER ||
5474 mpt2sas_port->remote_identify.device_type ==
5475 MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) {
5476
5477 spin_lock_irqsave(&ioc->sas_node_lock, flags);
5478 expander_sibling =
5479 mpt2sas_scsih_expander_find_by_sas_address(
5480 ioc, mpt2sas_port->remote_identify.sas_address);
5481 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
5482 if (!expander_sibling)
5483 continue;
5484 _scsih_expander_remove(ioc, expander_sibling->handle);
5485 goto retry_expander_search;
5486 }
5487 }
5488
5489 mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
5490 sas_expander->parent_handle);
5491
5492 printk(MPT2SAS_INFO_FMT "expander_remove: handle"
5493 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name,
5494 sas_expander->handle, (unsigned long long)
5495 sas_expander->sas_address);
5496
5497 list_del(&sas_expander->list);
5498 kfree(sas_expander->phy);
5499 kfree(sas_expander);
5500}
5501
5502/**
5503 * _scsih_remove - detach and remove add host
5504 * @pdev: PCI device struct
5505 *
5506 * Return nothing.
5507 */
5508static void __devexit
5509_scsih_remove(struct pci_dev *pdev)
5510{
5511 struct Scsi_Host *shost = pci_get_drvdata(pdev);
5512 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
5513 struct _sas_port *mpt2sas_port;
5514 struct _sas_device *sas_device;
5515 struct _sas_node *expander_sibling;
5516 struct workqueue_struct *wq;
5517 unsigned long flags;
5518
5519 ioc->remove_host = 1;
5520 _scsih_fw_event_off(ioc);
5521
5522 spin_lock_irqsave(&ioc->fw_event_lock, flags);
5523 wq = ioc->firmware_event_thread;
5524 ioc->firmware_event_thread = NULL;
5525 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
5526 if (wq)
5527 destroy_workqueue(wq);
5528
5529 /* free ports attached to the sas_host */
5530 retry_again:
5531 list_for_each_entry(mpt2sas_port,
5532 &ioc->sas_hba.sas_port_list, port_list) {
5533 if (mpt2sas_port->remote_identify.device_type ==
5534 SAS_END_DEVICE) {
5535 sas_device =
5536 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
5537 mpt2sas_port->remote_identify.sas_address);
5538 if (sas_device) {
5539 _scsih_remove_device(ioc, sas_device->handle);
5540 goto retry_again;
5541 }
5542 } else {
5543 expander_sibling =
5544 mpt2sas_scsih_expander_find_by_sas_address(ioc,
5545 mpt2sas_port->remote_identify.sas_address);
5546 if (expander_sibling) {
5547 _scsih_expander_remove(ioc,
5548 expander_sibling->handle);
5549 goto retry_again;
5550 }
5551 }
5552 }
5553
5554 /* free phys attached to the sas_host */
5555 if (ioc->sas_hba.num_phys) {
5556 kfree(ioc->sas_hba.phy);
5557 ioc->sas_hba.phy = NULL;
5558 ioc->sas_hba.num_phys = 0;
5559 }
5560
5561 sas_remove_host(shost);
5562 mpt2sas_base_detach(ioc);
5563 list_del(&ioc->list);
5564 scsi_remove_host(shost);
5565 scsi_host_put(shost);
5566}
5567
5568/**
5569 * _scsih_probe_boot_devices - reports 1st device
5570 * @ioc: per adapter object
5571 *
5572 * If specified in bios page 2, this routine reports the 1st
5573 * device scsi-ml or sas transport for persistent boot device
5574 * purposes. Please refer to function _scsih_determine_boot_device()
5575 */
5576static void
5577_scsih_probe_boot_devices(struct MPT2SAS_ADAPTER *ioc)
5578{
5579 u8 is_raid;
5580 void *device;
5581 struct _sas_device *sas_device;
5582 struct _raid_device *raid_device;
5583 u16 handle, parent_handle;
5584 u64 sas_address;
5585 unsigned long flags;
5586 int rc;
5587
5588 device = NULL;
5589 if (ioc->req_boot_device.device) {
5590 device = ioc->req_boot_device.device;
5591 is_raid = ioc->req_boot_device.is_raid;
5592 } else if (ioc->req_alt_boot_device.device) {
5593 device = ioc->req_alt_boot_device.device;
5594 is_raid = ioc->req_alt_boot_device.is_raid;
5595 } else if (ioc->current_boot_device.device) {
5596 device = ioc->current_boot_device.device;
5597 is_raid = ioc->current_boot_device.is_raid;
5598 }
5599
5600 if (!device)
5601 return;
5602
5603 if (is_raid) {
5604 raid_device = device;
5605 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
5606 raid_device->id, 0);
5607 if (rc)
5608 _scsih_raid_device_remove(ioc, raid_device);
5609 } else {
5610 sas_device = device;
5611 handle = sas_device->handle;
5612 parent_handle = sas_device->parent_handle;
5613 sas_address = sas_device->sas_address;
5614 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5615 list_move_tail(&sas_device->list, &ioc->sas_device_list);
5616 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5617 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
5618 sas_device->parent_handle)) {
5619 _scsih_sas_device_remove(ioc, sas_device);
5620 } else if (!sas_device->starget) {
5621 mpt2sas_transport_port_remove(ioc, sas_address,
5622 parent_handle);
5623 _scsih_sas_device_remove(ioc, sas_device);
5624 }
5625 }
5626}
5627
5628/**
5629 * _scsih_probe_raid - reporting raid volumes to scsi-ml
5630 * @ioc: per adapter object
5631 *
5632 * Called during initial loading of the driver.
5633 */
5634static void
5635_scsih_probe_raid(struct MPT2SAS_ADAPTER *ioc)
5636{
5637 struct _raid_device *raid_device, *raid_next;
5638 int rc;
5639
5640 list_for_each_entry_safe(raid_device, raid_next,
5641 &ioc->raid_device_list, list) {
5642 if (raid_device->starget)
5643 continue;
5644 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
5645 raid_device->id, 0);
5646 if (rc)
5647 _scsih_raid_device_remove(ioc, raid_device);
5648 }
5649}
5650
5651/**
5652 * _scsih_probe_sas - reporting raid volumes to sas transport
5653 * @ioc: per adapter object
5654 *
5655 * Called during initial loading of the driver.
5656 */
5657static void
5658_scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc)
5659{
5660 struct _sas_device *sas_device, *next;
5661 unsigned long flags;
5662 u16 handle, parent_handle;
5663 u64 sas_address;
5664
5665 /* SAS Device List */
5666 list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list,
5667 list) {
5668 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5669 list_move_tail(&sas_device->list, &ioc->sas_device_list);
5670 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5671
5672 handle = sas_device->handle;
5673 parent_handle = sas_device->parent_handle;
5674 sas_address = sas_device->sas_address;
5675 if (!mpt2sas_transport_port_add(ioc, handle, parent_handle)) {
5676 _scsih_sas_device_remove(ioc, sas_device);
5677 } else if (!sas_device->starget) {
5678 mpt2sas_transport_port_remove(ioc, sas_address,
5679 parent_handle);
5680 _scsih_sas_device_remove(ioc, sas_device);
5681 }
5682 }
5683}
5684
5685/**
5686 * _scsih_probe_devices - probing for devices
5687 * @ioc: per adapter object
5688 *
5689 * Called during initial loading of the driver.
5690 */
5691static void
5692_scsih_probe_devices(struct MPT2SAS_ADAPTER *ioc)
5693{
5694 u16 volume_mapping_flags =
5695 le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) &
5696 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
5697
5698 if (!(ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR))
5699 return; /* return when IOC doesn't support initiator mode */
5700
5701 _scsih_probe_boot_devices(ioc);
5702
5703 if (ioc->ir_firmware) {
5704 if ((volume_mapping_flags &
5705 MPI2_IOCPAGE8_IRFLAGS_HIGH_VOLUME_MAPPING)) {
5706 _scsih_probe_sas(ioc);
5707 _scsih_probe_raid(ioc);
5708 } else {
5709 _scsih_probe_raid(ioc);
5710 _scsih_probe_sas(ioc);
5711 }
5712 } else
5713 _scsih_probe_sas(ioc);
5714}
5715
5716/**
5717 * _scsih_probe - attach and add scsi host
5718 * @pdev: PCI device struct
5719 * @id: pci device id
5720 *
5721 * Returns 0 success, anything else error.
5722 */
5723static int
5724_scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
5725{
5726 struct MPT2SAS_ADAPTER *ioc;
5727 struct Scsi_Host *shost;
5728
5729 shost = scsi_host_alloc(&scsih_driver_template,
5730 sizeof(struct MPT2SAS_ADAPTER));
5731 if (!shost)
5732 return -ENODEV;
5733
5734 /* init local params */
5735 ioc = shost_priv(shost);
5736 memset(ioc, 0, sizeof(struct MPT2SAS_ADAPTER));
5737 INIT_LIST_HEAD(&ioc->list);
5738 list_add_tail(&ioc->list, &mpt2sas_ioc_list);
5739 ioc->shost = shost;
5740 ioc->id = mpt_ids++;
5741 sprintf(ioc->name, "%s%d", MPT2SAS_DRIVER_NAME, ioc->id);
5742 ioc->pdev = pdev;
5743 ioc->scsi_io_cb_idx = scsi_io_cb_idx;
5744 ioc->tm_cb_idx = tm_cb_idx;
5745 ioc->ctl_cb_idx = ctl_cb_idx;
5746 ioc->base_cb_idx = base_cb_idx;
5747 ioc->transport_cb_idx = transport_cb_idx;
5748 ioc->config_cb_idx = config_cb_idx;
5749 ioc->logging_level = logging_level;
5750 /* misc semaphores and spin locks */
5751 spin_lock_init(&ioc->ioc_reset_in_progress_lock);
5752 spin_lock_init(&ioc->scsi_lookup_lock);
5753 spin_lock_init(&ioc->sas_device_lock);
5754 spin_lock_init(&ioc->sas_node_lock);
5755 spin_lock_init(&ioc->fw_event_lock);
5756 spin_lock_init(&ioc->raid_device_lock);
5757
5758 INIT_LIST_HEAD(&ioc->sas_device_list);
5759 INIT_LIST_HEAD(&ioc->sas_device_init_list);
5760 INIT_LIST_HEAD(&ioc->sas_expander_list);
5761 INIT_LIST_HEAD(&ioc->fw_event_list);
5762 INIT_LIST_HEAD(&ioc->raid_device_list);
5763 INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list);
5764
5765 /* init shost parameters */
5766 shost->max_cmd_len = 16;
5767 shost->max_lun = max_lun;
5768 shost->transportt = mpt2sas_transport_template;
5769 shost->unique_id = ioc->id;
5770
5771 if ((scsi_add_host(shost, &pdev->dev))) {
5772 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5773 ioc->name, __FILE__, __LINE__, __func__);
5774 list_del(&ioc->list);
5775 goto out_add_shost_fail;
5776 }
5777
5778 scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
5779 | SHOST_DIF_TYPE3_PROTECTION);
5780
5781 /* event thread */
5782 snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
5783 "fw_event%d", ioc->id);
5784 ioc->firmware_event_thread = create_singlethread_workqueue(
5785 ioc->firmware_event_name);
5786 if (!ioc->firmware_event_thread) {
5787 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5788 ioc->name, __FILE__, __LINE__, __func__);
5789 goto out_thread_fail;
5790 }
5791
5792 ioc->wait_for_port_enable_to_complete = 1;
5793 if ((mpt2sas_base_attach(ioc))) {
5794 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5795 ioc->name, __FILE__, __LINE__, __func__);
5796 goto out_attach_fail;
5797 }
5798
5799 ioc->wait_for_port_enable_to_complete = 0;
5800 _scsih_probe_devices(ioc);
5801 return 0;
5802
5803 out_attach_fail:
5804 destroy_workqueue(ioc->firmware_event_thread);
5805 out_thread_fail:
5806 list_del(&ioc->list);
5807 scsi_remove_host(shost);
5808 out_add_shost_fail:
5809 return -ENODEV;
5810}
5811
5812#ifdef CONFIG_PM
5813/**
5814 * _scsih_suspend - power management suspend main entry point
5815 * @pdev: PCI device struct
5816 * @state: PM state change to (usually PCI_D3)
5817 *
5818 * Returns 0 success, anything else error.
5819 */
5820static int
5821_scsih_suspend(struct pci_dev *pdev, pm_message_t state)
5822{
5823 struct Scsi_Host *shost = pci_get_drvdata(pdev);
5824 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
5825 u32 device_state;
5826
5827 mpt2sas_base_stop_watchdog(ioc);
5828 flush_scheduled_work();
5829 scsi_block_requests(shost);
5830 device_state = pci_choose_state(pdev, state);
5831 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, entering "
5832 "operating state [D%d]\n", ioc->name, pdev,
5833 pci_name(pdev), device_state);
5834
5835 mpt2sas_base_free_resources(ioc);
5836 pci_save_state(pdev);
5837 pci_disable_device(pdev);
5838 pci_set_power_state(pdev, device_state);
5839 return 0;
5840}
5841
5842/**
5843 * _scsih_resume - power management resume main entry point
5844 * @pdev: PCI device struct
5845 *
5846 * Returns 0 success, anything else error.
5847 */
5848static int
5849_scsih_resume(struct pci_dev *pdev)
5850{
5851 struct Scsi_Host *shost = pci_get_drvdata(pdev);
5852 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
5853 u32 device_state = pdev->current_state;
5854 int r;
5855
5856 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, previous "
5857 "operating state [D%d]\n", ioc->name, pdev,
5858 pci_name(pdev), device_state);
5859
5860 pci_set_power_state(pdev, PCI_D0);
5861 pci_enable_wake(pdev, PCI_D0, 0);
5862 pci_restore_state(pdev);
5863 ioc->pdev = pdev;
5864 r = mpt2sas_base_map_resources(ioc);
5865 if (r)
5866 return r;
5867
5868 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, SOFT_RESET);
5869 scsi_unblock_requests(shost);
5870 mpt2sas_base_start_watchdog(ioc);
5871 return 0;
5872}
5873#endif /* CONFIG_PM */
5874
5875
5876static struct pci_driver scsih_driver = {
5877 .name = MPT2SAS_DRIVER_NAME,
5878 .id_table = scsih_pci_table,
5879 .probe = _scsih_probe,
5880 .remove = __devexit_p(_scsih_remove),
5881#ifdef CONFIG_PM
5882 .suspend = _scsih_suspend,
5883 .resume = _scsih_resume,
5884#endif
5885};
5886
5887
5888/**
5889 * _scsih_init - main entry point for this driver.
5890 *
5891 * Returns 0 success, anything else error.
5892 */
5893static int __init
5894_scsih_init(void)
5895{
5896 int error;
5897
5898 mpt_ids = 0;
5899 printk(KERN_INFO "%s version %s loaded\n", MPT2SAS_DRIVER_NAME,
5900 MPT2SAS_DRIVER_VERSION);
5901
5902 mpt2sas_transport_template =
5903 sas_attach_transport(&mpt2sas_transport_functions);
5904 if (!mpt2sas_transport_template)
5905 return -ENODEV;
5906
5907 mpt2sas_base_initialize_callback_handler();
5908
5909 /* queuecommand callback hander */
5910 scsi_io_cb_idx = mpt2sas_base_register_callback_handler(_scsih_io_done);
5911
5912 /* task managment callback handler */
5913 tm_cb_idx = mpt2sas_base_register_callback_handler(_scsih_tm_done);
5914
5915 /* base internal commands callback handler */
5916 base_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_base_done);
5917
5918 /* transport internal commands callback handler */
5919 transport_cb_idx = mpt2sas_base_register_callback_handler(
5920 mpt2sas_transport_done);
5921
5922 /* configuration page API internal commands callback handler */
5923 config_cb_idx = mpt2sas_base_register_callback_handler(
5924 mpt2sas_config_done);
5925
5926 /* ctl module callback handler */
5927 ctl_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_ctl_done);
5928
5929 mpt2sas_ctl_init();
5930
5931 error = pci_register_driver(&scsih_driver);
5932 if (error)
5933 sas_release_transport(mpt2sas_transport_template);
5934
5935 return error;
5936}
5937
5938/**
5939 * _scsih_exit - exit point for this driver (when it is a module).
5940 *
5941 * Returns 0 success, anything else error.
5942 */
5943static void __exit
5944_scsih_exit(void)
5945{
5946 printk(KERN_INFO "mpt2sas version %s unloading\n",
5947 MPT2SAS_DRIVER_VERSION);
5948
5949 pci_unregister_driver(&scsih_driver);
5950
5951 sas_release_transport(mpt2sas_transport_template);
5952 mpt2sas_base_release_callback_handler(scsi_io_cb_idx);
5953 mpt2sas_base_release_callback_handler(tm_cb_idx);
5954 mpt2sas_base_release_callback_handler(base_cb_idx);
5955 mpt2sas_base_release_callback_handler(transport_cb_idx);
5956 mpt2sas_base_release_callback_handler(config_cb_idx);
5957 mpt2sas_base_release_callback_handler(ctl_cb_idx);
5958
5959 mpt2sas_ctl_exit();
5960}
5961
5962module_init(_scsih_init);
5963module_exit(_scsih_exit);
generated by cgit v1.2.2 (git 2.25.0) at 2025-10-17 02:42:04 -0400