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1/*
2 * Scsi Host Layer for MPT (Message Passing Technology) based controllers
3 *
4 * This code is based on drivers/scsi/mpt2sas/mpt2_scsih.c
5 * Copyright (C) 2007-2010 LSI Corporation
6 * (mailto:DL-MPTFusionLinux@lsi.com)
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * NO WARRANTY
19 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
20 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
21 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
22 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
23 * solely responsible for determining the appropriateness of using and
24 * distributing the Program and assumes all risks associated with its
25 * exercise of rights under this Agreement, including but not limited to
26 * the risks and costs of program errors, damage to or loss of data,
27 * programs or equipment, and unavailability or interruption of operations.
28
29 * DISCLAIMER OF LIABILITY
30 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
31 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
33 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
34 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
35 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
36 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
37
38 * You should have received a copy of the GNU General Public License
39 * along with this program; if not, write to the Free Software
40 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
41 * USA.
42 */
43
44#include <linux/version.h>
45#include <linux/module.h>
46#include <linux/kernel.h>
47#include <linux/init.h>
48#include <linux/errno.h>
49#include <linux/blkdev.h>
50#include <linux/sched.h>
51#include <linux/workqueue.h>
52#include <linux/delay.h>
53#include <linux/pci.h>
54#include <linux/interrupt.h>
55#include <linux/aer.h>
56#include <linux/raid_class.h>
57#include <linux/slab.h>
58
59#include "mpt2sas_base.h"
60
61MODULE_AUTHOR(MPT2SAS_AUTHOR);
62MODULE_DESCRIPTION(MPT2SAS_DESCRIPTION);
63MODULE_LICENSE("GPL");
64MODULE_VERSION(MPT2SAS_DRIVER_VERSION);
65
66#define RAID_CHANNEL 1
67
68/* forward proto's */
69static void _scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
70 struct _sas_node *sas_expander);
71static void _firmware_event_work(struct work_struct *work);
72
73static u8 _scsih_check_for_pending_tm(struct MPT2SAS_ADAPTER *ioc, u16 smid);
74
75/* global parameters */
76LIST_HEAD(mpt2sas_ioc_list);
77
78/* local parameters */
79static u8 scsi_io_cb_idx = -1;
80static u8 tm_cb_idx = -1;
81static u8 ctl_cb_idx = -1;
82static u8 base_cb_idx = -1;
83static u8 transport_cb_idx = -1;
84static u8 scsih_cb_idx = -1;
85static u8 config_cb_idx = -1;
86static int mpt_ids;
87
88static u8 tm_tr_cb_idx = -1 ;
89static u8 tm_tr_volume_cb_idx = -1 ;
90static u8 tm_sas_control_cb_idx = -1;
91
92/* command line options */
93static u32 logging_level;
94MODULE_PARM_DESC(logging_level, " bits for enabling additional logging info "
95 "(default=0)");
96
97static ushort max_sectors = 0xFFFF;
98module_param(max_sectors, ushort, 0);
99MODULE_PARM_DESC(max_sectors, "max sectors, range 64 to 8192 default=8192");
100
101/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
102#define MPT2SAS_MAX_LUN (16895)
103static int max_lun = MPT2SAS_MAX_LUN;
104module_param(max_lun, int, 0);
105MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
106
107/**
108 * struct sense_info - common structure for obtaining sense keys
109 * @skey: sense key
110 * @asc: additional sense code
111 * @ascq: additional sense code qualifier
112 */
113struct sense_info {
114 u8 skey;
115 u8 asc;
116 u8 ascq;
117};
118
119
120#define MPT2SAS_TURN_ON_FAULT_LED (0xFFFC)
121#define MPT2SAS_RESCAN_AFTER_HOST_RESET (0xFFFF)
122
123/**
124 * struct fw_event_work - firmware event struct
125 * @list: link list framework
126 * @work: work object (ioc->fault_reset_work_q)
127 * @cancel_pending_work: flag set during reset handling
128 * @ioc: per adapter object
129 * @device_handle: device handle
130 * @VF_ID: virtual function id
131 * @VP_ID: virtual port id
132 * @ignore: flag meaning this event has been marked to ignore
133 * @event: firmware event MPI2_EVENT_XXX defined in mpt2_ioc.h
134 * @event_data: reply event data payload follows
135 *
136 * This object stored on ioc->fw_event_list.
137 */
138struct fw_event_work {
139 struct list_head list;
140 u8 cancel_pending_work;
141 struct delayed_work delayed_work;
142 struct MPT2SAS_ADAPTER *ioc;
143 u16 device_handle;
144 u8 VF_ID;
145 u8 VP_ID;
146 u8 ignore;
147 u16 event;
148 void *event_data;
149};
150
151/* raid transport support */
152static struct raid_template *mpt2sas_raid_template;
153
154/**
155 * struct _scsi_io_transfer - scsi io transfer
156 * @handle: sas device handle (assigned by firmware)
157 * @is_raid: flag set for hidden raid components
158 * @dir: DMA_TO_DEVICE, DMA_FROM_DEVICE,
159 * @data_length: data transfer length
160 * @data_dma: dma pointer to data
161 * @sense: sense data
162 * @lun: lun number
163 * @cdb_length: cdb length
164 * @cdb: cdb contents
165 * @timeout: timeout for this command
166 * @VF_ID: virtual function id
167 * @VP_ID: virtual port id
168 * @valid_reply: flag set for reply message
169 * @sense_length: sense length
170 * @ioc_status: ioc status
171 * @scsi_state: scsi state
172 * @scsi_status: scsi staus
173 * @log_info: log information
174 * @transfer_length: data length transfer when there is a reply message
175 *
176 * Used for sending internal scsi commands to devices within this module.
177 * Refer to _scsi_send_scsi_io().
178 */
179struct _scsi_io_transfer {
180 u16 handle;
181 u8 is_raid;
182 enum dma_data_direction dir;
183 u32 data_length;
184 dma_addr_t data_dma;
185 u8 sense[SCSI_SENSE_BUFFERSIZE];
186 u32 lun;
187 u8 cdb_length;
188 u8 cdb[32];
189 u8 timeout;
190 u8 VF_ID;
191 u8 VP_ID;
192 u8 valid_reply;
193 /* the following bits are only valid when 'valid_reply = 1' */
194 u32 sense_length;
195 u16 ioc_status;
196 u8 scsi_state;
197 u8 scsi_status;
198 u32 log_info;
199 u32 transfer_length;
200};
201
202/*
203 * The pci device ids are defined in mpi/mpi2_cnfg.h.
204 */
205static struct pci_device_id scsih_pci_table[] = {
206 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004,
207 PCI_ANY_ID, PCI_ANY_ID },
208 /* Falcon ~ 2008*/
209 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2008,
210 PCI_ANY_ID, PCI_ANY_ID },
211 /* Liberator ~ 2108 */
212 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_1,
213 PCI_ANY_ID, PCI_ANY_ID },
214 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_2,
215 PCI_ANY_ID, PCI_ANY_ID },
216 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_3,
217 PCI_ANY_ID, PCI_ANY_ID },
218 /* Meteor ~ 2116 */
219 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_1,
220 PCI_ANY_ID, PCI_ANY_ID },
221 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2,
222 PCI_ANY_ID, PCI_ANY_ID },
223 /* Thunderbolt ~ 2208 */
224 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_1,
225 PCI_ANY_ID, PCI_ANY_ID },
226 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_2,
227 PCI_ANY_ID, PCI_ANY_ID },
228 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_3,
229 PCI_ANY_ID, PCI_ANY_ID },
230 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_4,
231 PCI_ANY_ID, PCI_ANY_ID },
232 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_5,
233 PCI_ANY_ID, PCI_ANY_ID },
234 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_6,
235 PCI_ANY_ID, PCI_ANY_ID },
236 /* Mustang ~ 2308 */
237 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_1,
238 PCI_ANY_ID, PCI_ANY_ID },
239 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2,
240 PCI_ANY_ID, PCI_ANY_ID },
241 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_3,
242 PCI_ANY_ID, PCI_ANY_ID },
243 /* SSS6200 */
244 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SSS6200,
245 PCI_ANY_ID, PCI_ANY_ID },
246 {0} /* Terminating entry */
247};
248MODULE_DEVICE_TABLE(pci, scsih_pci_table);
249
250/**
251 * _scsih_set_debug_level - global setting of ioc->logging_level.
252 *
253 * Note: The logging levels are defined in mpt2sas_debug.h.
254 */
255static int
256_scsih_set_debug_level(const char *val, struct kernel_param *kp)
257{
258 int ret = param_set_int(val, kp);
259 struct MPT2SAS_ADAPTER *ioc;
260
261 if (ret)
262 return ret;
263
264 printk(KERN_INFO "setting logging_level(0x%08x)\n", logging_level);
265 list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
266 ioc->logging_level = logging_level;
267 return 0;
268}
269module_param_call(logging_level, _scsih_set_debug_level, param_get_int,
270 &logging_level, 0644);
271
272/**
273 * _scsih_srch_boot_sas_address - search based on sas_address
274 * @sas_address: sas address
275 * @boot_device: boot device object from bios page 2
276 *
277 * Returns 1 when there's a match, 0 means no match.
278 */
279static inline int
280_scsih_srch_boot_sas_address(u64 sas_address,
281 Mpi2BootDeviceSasWwid_t *boot_device)
282{
283 return (sas_address == le64_to_cpu(boot_device->SASAddress)) ? 1 : 0;
284}
285
286/**
287 * _scsih_srch_boot_device_name - search based on device name
288 * @device_name: device name specified in INDENTIFY fram
289 * @boot_device: boot device object from bios page 2
290 *
291 * Returns 1 when there's a match, 0 means no match.
292 */
293static inline int
294_scsih_srch_boot_device_name(u64 device_name,
295 Mpi2BootDeviceDeviceName_t *boot_device)
296{
297 return (device_name == le64_to_cpu(boot_device->DeviceName)) ? 1 : 0;
298}
299
300/**
301 * _scsih_srch_boot_encl_slot - search based on enclosure_logical_id/slot
302 * @enclosure_logical_id: enclosure logical id
303 * @slot_number: slot number
304 * @boot_device: boot device object from bios page 2
305 *
306 * Returns 1 when there's a match, 0 means no match.
307 */
308static inline int
309_scsih_srch_boot_encl_slot(u64 enclosure_logical_id, u16 slot_number,
310 Mpi2BootDeviceEnclosureSlot_t *boot_device)
311{
312 return (enclosure_logical_id == le64_to_cpu(boot_device->
313 EnclosureLogicalID) && slot_number == le16_to_cpu(boot_device->
314 SlotNumber)) ? 1 : 0;
315}
316
317/**
318 * _scsih_is_boot_device - search for matching boot device.
319 * @sas_address: sas address
320 * @device_name: device name specified in INDENTIFY fram
321 * @enclosure_logical_id: enclosure logical id
322 * @slot_number: slot number
323 * @form: specifies boot device form
324 * @boot_device: boot device object from bios page 2
325 *
326 * Returns 1 when there's a match, 0 means no match.
327 */
328static int
329_scsih_is_boot_device(u64 sas_address, u64 device_name,
330 u64 enclosure_logical_id, u16 slot, u8 form,
331 Mpi2BiosPage2BootDevice_t *boot_device)
332{
333 int rc = 0;
334
335 switch (form) {
336 case MPI2_BIOSPAGE2_FORM_SAS_WWID:
337 if (!sas_address)
338 break;
339 rc = _scsih_srch_boot_sas_address(
340 sas_address, &boot_device->SasWwid);
341 break;
342 case MPI2_BIOSPAGE2_FORM_ENCLOSURE_SLOT:
343 if (!enclosure_logical_id)
344 break;
345 rc = _scsih_srch_boot_encl_slot(
346 enclosure_logical_id,
347 slot, &boot_device->EnclosureSlot);
348 break;
349 case MPI2_BIOSPAGE2_FORM_DEVICE_NAME:
350 if (!device_name)
351 break;
352 rc = _scsih_srch_boot_device_name(
353 device_name, &boot_device->DeviceName);
354 break;
355 case MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED:
356 break;
357 }
358
359 return rc;
360}
361
362/**
363 * _scsih_get_sas_address - set the sas_address for given device handle
364 * @handle: device handle
365 * @sas_address: sas address
366 *
367 * Returns 0 success, non-zero when failure
368 */
369static int
370_scsih_get_sas_address(struct MPT2SAS_ADAPTER *ioc, u16 handle,
371 u64 *sas_address)
372{
373 Mpi2SasDevicePage0_t sas_device_pg0;
374 Mpi2ConfigReply_t mpi_reply;
375 u32 ioc_status;
376
377 if (handle <= ioc->sas_hba.num_phys) {
378 *sas_address = ioc->sas_hba.sas_address;
379 return 0;
380 } else
381 *sas_address = 0;
382
383 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
384 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
385 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
386 ioc->name, __FILE__, __LINE__, __func__);
387 return -ENXIO;
388 }
389
390 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
391 MPI2_IOCSTATUS_MASK;
392 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
393 printk(MPT2SAS_ERR_FMT "handle(0x%04x), ioc_status(0x%04x)"
394 "\nfailure at %s:%d/%s()!\n", ioc->name, handle, ioc_status,
395 __FILE__, __LINE__, __func__);
396 return -EIO;
397 }
398
399 *sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
400 return 0;
401}
402
403/**
404 * _scsih_determine_boot_device - determine boot device.
405 * @ioc: per adapter object
406 * @device: either sas_device or raid_device object
407 * @is_raid: [flag] 1 = raid object, 0 = sas object
408 *
409 * Determines whether this device should be first reported device to
410 * to scsi-ml or sas transport, this purpose is for persistent boot device.
411 * There are primary, alternate, and current entries in bios page 2. The order
412 * priority is primary, alternate, then current. This routine saves
413 * the corresponding device object and is_raid flag in the ioc object.
414 * The saved data to be used later in _scsih_probe_boot_devices().
415 */
416static void
417_scsih_determine_boot_device(struct MPT2SAS_ADAPTER *ioc,
418 void *device, u8 is_raid)
419{
420 struct _sas_device *sas_device;
421 struct _raid_device *raid_device;
422 u64 sas_address;
423 u64 device_name;
424 u64 enclosure_logical_id;
425 u16 slot;
426
427 /* only process this function when driver loads */
428 if (!ioc->wait_for_port_enable_to_complete)
429 return;
430
431 if (!is_raid) {
432 sas_device = device;
433 sas_address = sas_device->sas_address;
434 device_name = sas_device->device_name;
435 enclosure_logical_id = sas_device->enclosure_logical_id;
436 slot = sas_device->slot;
437 } else {
438 raid_device = device;
439 sas_address = raid_device->wwid;
440 device_name = 0;
441 enclosure_logical_id = 0;
442 slot = 0;
443 }
444
445 if (!ioc->req_boot_device.device) {
446 if (_scsih_is_boot_device(sas_address, device_name,
447 enclosure_logical_id, slot,
448 (ioc->bios_pg2.ReqBootDeviceForm &
449 MPI2_BIOSPAGE2_FORM_MASK),
450 &ioc->bios_pg2.RequestedBootDevice)) {
451 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
452 "%s: req_boot_device(0x%016llx)\n",
453 ioc->name, __func__,
454 (unsigned long long)sas_address));
455 ioc->req_boot_device.device = device;
456 ioc->req_boot_device.is_raid = is_raid;
457 }
458 }
459
460 if (!ioc->req_alt_boot_device.device) {
461 if (_scsih_is_boot_device(sas_address, device_name,
462 enclosure_logical_id, slot,
463 (ioc->bios_pg2.ReqAltBootDeviceForm &
464 MPI2_BIOSPAGE2_FORM_MASK),
465 &ioc->bios_pg2.RequestedAltBootDevice)) {
466 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
467 "%s: req_alt_boot_device(0x%016llx)\n",
468 ioc->name, __func__,
469 (unsigned long long)sas_address));
470 ioc->req_alt_boot_device.device = device;
471 ioc->req_alt_boot_device.is_raid = is_raid;
472 }
473 }
474
475 if (!ioc->current_boot_device.device) {
476 if (_scsih_is_boot_device(sas_address, device_name,
477 enclosure_logical_id, slot,
478 (ioc->bios_pg2.CurrentBootDeviceForm &
479 MPI2_BIOSPAGE2_FORM_MASK),
480 &ioc->bios_pg2.CurrentBootDevice)) {
481 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
482 "%s: current_boot_device(0x%016llx)\n",
483 ioc->name, __func__,
484 (unsigned long long)sas_address));
485 ioc->current_boot_device.device = device;
486 ioc->current_boot_device.is_raid = is_raid;
487 }
488 }
489}
490
491/**
492 * mpt2sas_scsih_sas_device_find_by_sas_address - sas device search
493 * @ioc: per adapter object
494 * @sas_address: sas address
495 * Context: Calling function should acquire ioc->sas_device_lock
496 *
497 * This searches for sas_device based on sas_address, then return sas_device
498 * object.
499 */
500struct _sas_device *
501mpt2sas_scsih_sas_device_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
502 u64 sas_address)
503{
504 struct _sas_device *sas_device;
505
506 list_for_each_entry(sas_device, &ioc->sas_device_list, list)
507 if (sas_device->sas_address == sas_address)
508 return sas_device;
509
510 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
511 if (sas_device->sas_address == sas_address)
512 return sas_device;
513
514 return NULL;
515}
516
517/**
518 * _scsih_sas_device_find_by_handle - sas device search
519 * @ioc: per adapter object
520 * @handle: sas device handle (assigned by firmware)
521 * Context: Calling function should acquire ioc->sas_device_lock
522 *
523 * This searches for sas_device based on sas_address, then return sas_device
524 * object.
525 */
526static struct _sas_device *
527_scsih_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
528{
529 struct _sas_device *sas_device;
530
531 list_for_each_entry(sas_device, &ioc->sas_device_list, list)
532 if (sas_device->handle == handle)
533 return sas_device;
534
535 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
536 if (sas_device->handle == handle)
537 return sas_device;
538
539 return NULL;
540}
541
542/**
543 * _scsih_sas_device_remove - remove sas_device from list.
544 * @ioc: per adapter object
545 * @sas_device: the sas_device object
546 * Context: This function will acquire ioc->sas_device_lock.
547 *
548 * Removing object and freeing associated memory from the ioc->sas_device_list.
549 */
550static void
551_scsih_sas_device_remove(struct MPT2SAS_ADAPTER *ioc,
552 struct _sas_device *sas_device)
553{
554 unsigned long flags;
555
556 if (!sas_device)
557 return;
558
559 spin_lock_irqsave(&ioc->sas_device_lock, flags);
560 if (mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
561 sas_device->sas_address)) {
562 list_del(&sas_device->list);
563 kfree(sas_device);
564 }
565 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
566}
567
568/**
569 * _scsih_sas_device_add - insert sas_device to the list.
570 * @ioc: per adapter object
571 * @sas_device: the sas_device object
572 * Context: This function will acquire ioc->sas_device_lock.
573 *
574 * Adding new object to the ioc->sas_device_list.
575 */
576static void
577_scsih_sas_device_add(struct MPT2SAS_ADAPTER *ioc,
578 struct _sas_device *sas_device)
579{
580 unsigned long flags;
581
582 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
583 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
584 sas_device->handle, (unsigned long long)sas_device->sas_address));
585
586 spin_lock_irqsave(&ioc->sas_device_lock, flags);
587 list_add_tail(&sas_device->list, &ioc->sas_device_list);
588 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
589
590 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
591 sas_device->sas_address_parent))
592 _scsih_sas_device_remove(ioc, sas_device);
593}
594
595/**
596 * _scsih_sas_device_init_add - insert sas_device to the list.
597 * @ioc: per adapter object
598 * @sas_device: the sas_device object
599 * Context: This function will acquire ioc->sas_device_lock.
600 *
601 * Adding new object at driver load time to the ioc->sas_device_init_list.
602 */
603static void
604_scsih_sas_device_init_add(struct MPT2SAS_ADAPTER *ioc,
605 struct _sas_device *sas_device)
606{
607 unsigned long flags;
608
609 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
610 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
611 sas_device->handle, (unsigned long long)sas_device->sas_address));
612
613 spin_lock_irqsave(&ioc->sas_device_lock, flags);
614 list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
615 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
616 _scsih_determine_boot_device(ioc, sas_device, 0);
617}
618
619/**
620 * _scsih_raid_device_find_by_id - raid device search
621 * @ioc: per adapter object
622 * @id: sas device target id
623 * @channel: sas device channel
624 * Context: Calling function should acquire ioc->raid_device_lock
625 *
626 * This searches for raid_device based on target id, then return raid_device
627 * object.
628 */
629static struct _raid_device *
630_scsih_raid_device_find_by_id(struct MPT2SAS_ADAPTER *ioc, int id, int channel)
631{
632 struct _raid_device *raid_device, *r;
633
634 r = NULL;
635 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
636 if (raid_device->id == id && raid_device->channel == channel) {
637 r = raid_device;
638 goto out;
639 }
640 }
641
642 out:
643 return r;
644}
645
646/**
647 * _scsih_raid_device_find_by_handle - raid device search
648 * @ioc: per adapter object
649 * @handle: sas device handle (assigned by firmware)
650 * Context: Calling function should acquire ioc->raid_device_lock
651 *
652 * This searches for raid_device based on handle, then return raid_device
653 * object.
654 */
655static struct _raid_device *
656_scsih_raid_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
657{
658 struct _raid_device *raid_device, *r;
659
660 r = NULL;
661 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
662 if (raid_device->handle != handle)
663 continue;
664 r = raid_device;
665 goto out;
666 }
667
668 out:
669 return r;
670}
671
672/**
673 * _scsih_raid_device_find_by_wwid - raid device search
674 * @ioc: per adapter object
675 * @handle: sas device handle (assigned by firmware)
676 * Context: Calling function should acquire ioc->raid_device_lock
677 *
678 * This searches for raid_device based on wwid, then return raid_device
679 * object.
680 */
681static struct _raid_device *
682_scsih_raid_device_find_by_wwid(struct MPT2SAS_ADAPTER *ioc, u64 wwid)
683{
684 struct _raid_device *raid_device, *r;
685
686 r = NULL;
687 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
688 if (raid_device->wwid != wwid)
689 continue;
690 r = raid_device;
691 goto out;
692 }
693
694 out:
695 return r;
696}
697
698/**
699 * _scsih_raid_device_add - add raid_device object
700 * @ioc: per adapter object
701 * @raid_device: raid_device object
702 *
703 * This is added to the raid_device_list link list.
704 */
705static void
706_scsih_raid_device_add(struct MPT2SAS_ADAPTER *ioc,
707 struct _raid_device *raid_device)
708{
709 unsigned long flags;
710
711 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
712 "(0x%04x), wwid(0x%016llx)\n", ioc->name, __func__,
713 raid_device->handle, (unsigned long long)raid_device->wwid));
714
715 spin_lock_irqsave(&ioc->raid_device_lock, flags);
716 list_add_tail(&raid_device->list, &ioc->raid_device_list);
717 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
718}
719
720/**
721 * _scsih_raid_device_remove - delete raid_device object
722 * @ioc: per adapter object
723 * @raid_device: raid_device object
724 *
725 * This is removed from the raid_device_list link list.
726 */
727static void
728_scsih_raid_device_remove(struct MPT2SAS_ADAPTER *ioc,
729 struct _raid_device *raid_device)
730{
731 unsigned long flags;
732
733 spin_lock_irqsave(&ioc->raid_device_lock, flags);
734 list_del(&raid_device->list);
735 memset(raid_device, 0, sizeof(struct _raid_device));
736 kfree(raid_device);
737 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
738}
739
740/**
741 * mpt2sas_scsih_expander_find_by_handle - expander device search
742 * @ioc: per adapter object
743 * @handle: expander handle (assigned by firmware)
744 * Context: Calling function should acquire ioc->sas_device_lock
745 *
746 * This searches for expander device based on handle, then returns the
747 * sas_node object.
748 */
749struct _sas_node *
750mpt2sas_scsih_expander_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
751{
752 struct _sas_node *sas_expander, *r;
753
754 r = NULL;
755 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
756 if (sas_expander->handle != handle)
757 continue;
758 r = sas_expander;
759 goto out;
760 }
761 out:
762 return r;
763}
764
765/**
766 * mpt2sas_scsih_expander_find_by_sas_address - expander device search
767 * @ioc: per adapter object
768 * @sas_address: sas address
769 * Context: Calling function should acquire ioc->sas_node_lock.
770 *
771 * This searches for expander device based on sas_address, then returns the
772 * sas_node object.
773 */
774struct _sas_node *
775mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
776 u64 sas_address)
777{
778 struct _sas_node *sas_expander, *r;
779
780 r = NULL;
781 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
782 if (sas_expander->sas_address != sas_address)
783 continue;
784 r = sas_expander;
785 goto out;
786 }
787 out:
788 return r;
789}
790
791/**
792 * _scsih_expander_node_add - insert expander device to the list.
793 * @ioc: per adapter object
794 * @sas_expander: the sas_device object
795 * Context: This function will acquire ioc->sas_node_lock.
796 *
797 * Adding new object to the ioc->sas_expander_list.
798 *
799 * Return nothing.
800 */
801static void
802_scsih_expander_node_add(struct MPT2SAS_ADAPTER *ioc,
803 struct _sas_node *sas_expander)
804{
805 unsigned long flags;
806
807 spin_lock_irqsave(&ioc->sas_node_lock, flags);
808 list_add_tail(&sas_expander->list, &ioc->sas_expander_list);
809 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
810}
811
812/**
813 * _scsih_is_end_device - determines if device is an end device
814 * @device_info: bitfield providing information about the device.
815 * Context: none
816 *
817 * Returns 1 if end device.
818 */
819static int
820_scsih_is_end_device(u32 device_info)
821{
822 if (device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE &&
823 ((device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) |
824 (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) |
825 (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))
826 return 1;
827 else
828 return 0;
829}
830
831/**
832 * _scsih_scsi_lookup_get - returns scmd entry
833 * @ioc: per adapter object
834 * @smid: system request message index
835 *
836 * Returns the smid stored scmd pointer.
837 */
838static struct scsi_cmnd *
839_scsih_scsi_lookup_get(struct MPT2SAS_ADAPTER *ioc, u16 smid)
840{
841 return ioc->scsi_lookup[smid - 1].scmd;
842}
843
844/**
845 * _scsih_scsi_lookup_get_clear - returns scmd entry
846 * @ioc: per adapter object
847 * @smid: system request message index
848 *
849 * Returns the smid stored scmd pointer.
850 * Then will derefrence the stored scmd pointer.
851 */
852static inline struct scsi_cmnd *
853_scsih_scsi_lookup_get_clear(struct MPT2SAS_ADAPTER *ioc, u16 smid)
854{
855 unsigned long flags;
856 struct scsi_cmnd *scmd;
857
858 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
859 scmd = ioc->scsi_lookup[smid - 1].scmd;
860 ioc->scsi_lookup[smid - 1].scmd = NULL;
861 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
862
863 return scmd;
864}
865
866/**
867 * _scsih_scsi_lookup_find_by_scmd - scmd lookup
868 * @ioc: per adapter object
869 * @smid: system request message index
870 * @scmd: pointer to scsi command object
871 * Context: This function will acquire ioc->scsi_lookup_lock.
872 *
873 * This will search for a scmd pointer in the scsi_lookup array,
874 * returning the revelent smid. A returned value of zero means invalid.
875 */
876static u16
877_scsih_scsi_lookup_find_by_scmd(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd
878 *scmd)
879{
880 u16 smid;
881 unsigned long flags;
882 int i;
883
884 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
885 smid = 0;
886 for (i = 0; i < ioc->scsiio_depth; i++) {
887 if (ioc->scsi_lookup[i].scmd == scmd) {
888 smid = ioc->scsi_lookup[i].smid;
889 goto out;
890 }
891 }
892 out:
893 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
894 return smid;
895}
896
897/**
898 * _scsih_scsi_lookup_find_by_target - search for matching channel:id
899 * @ioc: per adapter object
900 * @id: target id
901 * @channel: channel
902 * Context: This function will acquire ioc->scsi_lookup_lock.
903 *
904 * This will search for a matching channel:id in the scsi_lookup array,
905 * returning 1 if found.
906 */
907static u8
908_scsih_scsi_lookup_find_by_target(struct MPT2SAS_ADAPTER *ioc, int id,
909 int channel)
910{
911 u8 found;
912 unsigned long flags;
913 int i;
914
915 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
916 found = 0;
917 for (i = 0 ; i < ioc->scsiio_depth; i++) {
918 if (ioc->scsi_lookup[i].scmd &&
919 (ioc->scsi_lookup[i].scmd->device->id == id &&
920 ioc->scsi_lookup[i].scmd->device->channel == channel)) {
921 found = 1;
922 goto out;
923 }
924 }
925 out:
926 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
927 return found;
928}
929
930/**
931 * _scsih_scsi_lookup_find_by_lun - search for matching channel:id:lun
932 * @ioc: per adapter object
933 * @id: target id
934 * @lun: lun number
935 * @channel: channel
936 * Context: This function will acquire ioc->scsi_lookup_lock.
937 *
938 * This will search for a matching channel:id:lun in the scsi_lookup array,
939 * returning 1 if found.
940 */
941static u8
942_scsih_scsi_lookup_find_by_lun(struct MPT2SAS_ADAPTER *ioc, int id,
943 unsigned int lun, int channel)
944{
945 u8 found;
946 unsigned long flags;
947 int i;
948
949 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
950 found = 0;
951 for (i = 0 ; i < ioc->scsiio_depth; i++) {
952 if (ioc->scsi_lookup[i].scmd &&
953 (ioc->scsi_lookup[i].scmd->device->id == id &&
954 ioc->scsi_lookup[i].scmd->device->channel == channel &&
955 ioc->scsi_lookup[i].scmd->device->lun == lun)) {
956 found = 1;
957 goto out;
958 }
959 }
960 out:
961 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
962 return found;
963}
964
965/**
966 * _scsih_get_chain_buffer_tracker - obtain chain tracker
967 * @ioc: per adapter object
968 * @smid: smid associated to an IO request
969 *
970 * Returns chain tracker(from ioc->free_chain_list)
971 */
972static struct chain_tracker *
973_scsih_get_chain_buffer_tracker(struct MPT2SAS_ADAPTER *ioc, u16 smid)
974{
975 struct chain_tracker *chain_req;
976 unsigned long flags;
977
978 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
979 if (list_empty(&ioc->free_chain_list)) {
980 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
981 printk(MPT2SAS_WARN_FMT "chain buffers not available\n",
982 ioc->name);
983 return NULL;
984 }
985 chain_req = list_entry(ioc->free_chain_list.next,
986 struct chain_tracker, tracker_list);
987 list_del_init(&chain_req->tracker_list);
988 list_add_tail(&chain_req->tracker_list,
989 &ioc->scsi_lookup[smid - 1].chain_list);
990 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
991 return chain_req;
992}
993
994/**
995 * _scsih_build_scatter_gather - main sg creation routine
996 * @ioc: per adapter object
997 * @scmd: scsi command
998 * @smid: system request message index
999 * Context: none.
1000 *
1001 * The main routine that builds scatter gather table from a given
1002 * scsi request sent via the .queuecommand main handler.
1003 *
1004 * Returns 0 success, anything else error
1005 */
1006static int
1007_scsih_build_scatter_gather(struct MPT2SAS_ADAPTER *ioc,
1008 struct scsi_cmnd *scmd, u16 smid)
1009{
1010 Mpi2SCSIIORequest_t *mpi_request;
1011 dma_addr_t chain_dma;
1012 struct scatterlist *sg_scmd;
1013 void *sg_local, *chain;
1014 u32 chain_offset;
1015 u32 chain_length;
1016 u32 chain_flags;
1017 int sges_left;
1018 u32 sges_in_segment;
1019 u32 sgl_flags;
1020 u32 sgl_flags_last_element;
1021 u32 sgl_flags_end_buffer;
1022 struct chain_tracker *chain_req;
1023
1024 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
1025
1026 /* init scatter gather flags */
1027 sgl_flags = MPI2_SGE_FLAGS_SIMPLE_ELEMENT;
1028 if (scmd->sc_data_direction == DMA_TO_DEVICE)
1029 sgl_flags |= MPI2_SGE_FLAGS_HOST_TO_IOC;
1030 sgl_flags_last_element = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT)
1031 << MPI2_SGE_FLAGS_SHIFT;
1032 sgl_flags_end_buffer = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT |
1033 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST)
1034 << MPI2_SGE_FLAGS_SHIFT;
1035 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
1036
1037 sg_scmd = scsi_sglist(scmd);
1038 sges_left = scsi_dma_map(scmd);
1039 if (sges_left < 0) {
1040 sdev_printk(KERN_ERR, scmd->device, "pci_map_sg"
1041 " failed: request for %d bytes!\n", scsi_bufflen(scmd));
1042 return -ENOMEM;
1043 }
1044
1045 sg_local = &mpi_request->SGL;
1046 sges_in_segment = ioc->max_sges_in_main_message;
1047 if (sges_left <= sges_in_segment)
1048 goto fill_in_last_segment;
1049
1050 mpi_request->ChainOffset = (offsetof(Mpi2SCSIIORequest_t, SGL) +
1051 (sges_in_segment * ioc->sge_size))/4;
1052
1053 /* fill in main message segment when there is a chain following */
1054 while (sges_in_segment) {
1055 if (sges_in_segment == 1)
1056 ioc->base_add_sg_single(sg_local,
1057 sgl_flags_last_element | sg_dma_len(sg_scmd),
1058 sg_dma_address(sg_scmd));
1059 else
1060 ioc->base_add_sg_single(sg_local, sgl_flags |
1061 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1062 sg_scmd = sg_next(sg_scmd);
1063 sg_local += ioc->sge_size;
1064 sges_left--;
1065 sges_in_segment--;
1066 }
1067
1068 /* initializing the chain flags and pointers */
1069 chain_flags = MPI2_SGE_FLAGS_CHAIN_ELEMENT << MPI2_SGE_FLAGS_SHIFT;
1070 chain_req = _scsih_get_chain_buffer_tracker(ioc, smid);
1071 if (!chain_req)
1072 return -1;
1073 chain = chain_req->chain_buffer;
1074 chain_dma = chain_req->chain_buffer_dma;
1075 do {
1076 sges_in_segment = (sges_left <=
1077 ioc->max_sges_in_chain_message) ? sges_left :
1078 ioc->max_sges_in_chain_message;
1079 chain_offset = (sges_left == sges_in_segment) ?
1080 0 : (sges_in_segment * ioc->sge_size)/4;
1081 chain_length = sges_in_segment * ioc->sge_size;
1082 if (chain_offset) {
1083 chain_offset = chain_offset <<
1084 MPI2_SGE_CHAIN_OFFSET_SHIFT;
1085 chain_length += ioc->sge_size;
1086 }
1087 ioc->base_add_sg_single(sg_local, chain_flags | chain_offset |
1088 chain_length, chain_dma);
1089 sg_local = chain;
1090 if (!chain_offset)
1091 goto fill_in_last_segment;
1092
1093 /* fill in chain segments */
1094 while (sges_in_segment) {
1095 if (sges_in_segment == 1)
1096 ioc->base_add_sg_single(sg_local,
1097 sgl_flags_last_element |
1098 sg_dma_len(sg_scmd),
1099 sg_dma_address(sg_scmd));
1100 else
1101 ioc->base_add_sg_single(sg_local, sgl_flags |
1102 sg_dma_len(sg_scmd),
1103 sg_dma_address(sg_scmd));
1104 sg_scmd = sg_next(sg_scmd);
1105 sg_local += ioc->sge_size;
1106 sges_left--;
1107 sges_in_segment--;
1108 }
1109
1110 chain_req = _scsih_get_chain_buffer_tracker(ioc, smid);
1111 if (!chain_req)
1112 return -1;
1113 chain = chain_req->chain_buffer;
1114 chain_dma = chain_req->chain_buffer_dma;
1115 } while (1);
1116
1117
1118 fill_in_last_segment:
1119
1120 /* fill the last segment */
1121 while (sges_left) {
1122 if (sges_left == 1)
1123 ioc->base_add_sg_single(sg_local, sgl_flags_end_buffer |
1124 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1125 else
1126 ioc->base_add_sg_single(sg_local, sgl_flags |
1127 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1128 sg_scmd = sg_next(sg_scmd);
1129 sg_local += ioc->sge_size;
1130 sges_left--;
1131 }
1132
1133 return 0;
1134}
1135
1136/**
1137 * _scsih_adjust_queue_depth - setting device queue depth
1138 * @sdev: scsi device struct
1139 * @qdepth: requested queue depth
1140 *
1141 *
1142 * Returns nothing
1143 */
1144static void
1145_scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth)
1146{
1147 struct Scsi_Host *shost = sdev->host;
1148 int max_depth;
1149 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1150 struct MPT2SAS_DEVICE *sas_device_priv_data;
1151 struct MPT2SAS_TARGET *sas_target_priv_data;
1152 struct _sas_device *sas_device;
1153 unsigned long flags;
1154
1155 max_depth = shost->can_queue;
1156
1157 /* limit max device queue for SATA to 32 */
1158 sas_device_priv_data = sdev->hostdata;
1159 if (!sas_device_priv_data)
1160 goto not_sata;
1161 sas_target_priv_data = sas_device_priv_data->sas_target;
1162 if (!sas_target_priv_data)
1163 goto not_sata;
1164 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))
1165 goto not_sata;
1166 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1167 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1168 sas_device_priv_data->sas_target->sas_address);
1169 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1170 if (sas_device && sas_device->device_info &
1171 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1172 max_depth = MPT2SAS_SATA_QUEUE_DEPTH;
1173
1174 not_sata:
1175
1176 if (!sdev->tagged_supported)
1177 max_depth = 1;
1178 if (qdepth > max_depth)
1179 qdepth = max_depth;
1180 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1181}
1182
1183/**
1184 * _scsih_change_queue_depth - setting device queue depth
1185 * @sdev: scsi device struct
1186 * @qdepth: requested queue depth
1187 * @reason: SCSI_QDEPTH_DEFAULT/SCSI_QDEPTH_QFULL/SCSI_QDEPTH_RAMP_UP
1188 * (see include/scsi/scsi_host.h for definition)
1189 *
1190 * Returns queue depth.
1191 */
1192static int
1193_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1194{
1195 if (reason == SCSI_QDEPTH_DEFAULT || reason == SCSI_QDEPTH_RAMP_UP)
1196 _scsih_adjust_queue_depth(sdev, qdepth);
1197 else if (reason == SCSI_QDEPTH_QFULL)
1198 scsi_track_queue_full(sdev, qdepth);
1199 else
1200 return -EOPNOTSUPP;
1201
1202 if (sdev->inquiry_len > 7)
1203 sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), "
1204 "simple(%d), ordered(%d), scsi_level(%d), cmd_que(%d)\n",
1205 sdev->queue_depth, sdev->tagged_supported, sdev->simple_tags,
1206 sdev->ordered_tags, sdev->scsi_level,
1207 (sdev->inquiry[7] & 2) >> 1);
1208
1209 return sdev->queue_depth;
1210}
1211
1212/**
1213 * _scsih_change_queue_type - changing device queue tag type
1214 * @sdev: scsi device struct
1215 * @tag_type: requested tag type
1216 *
1217 * Returns queue tag type.
1218 */
1219static int
1220_scsih_change_queue_type(struct scsi_device *sdev, int tag_type)
1221{
1222 if (sdev->tagged_supported) {
1223 scsi_set_tag_type(sdev, tag_type);
1224 if (tag_type)
1225 scsi_activate_tcq(sdev, sdev->queue_depth);
1226 else
1227 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1228 } else
1229 tag_type = 0;
1230
1231 return tag_type;
1232}
1233
1234/**
1235 * _scsih_target_alloc - target add routine
1236 * @starget: scsi target struct
1237 *
1238 * Returns 0 if ok. Any other return is assumed to be an error and
1239 * the device is ignored.
1240 */
1241static int
1242_scsih_target_alloc(struct scsi_target *starget)
1243{
1244 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1245 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1246 struct MPT2SAS_TARGET *sas_target_priv_data;
1247 struct _sas_device *sas_device;
1248 struct _raid_device *raid_device;
1249 unsigned long flags;
1250 struct sas_rphy *rphy;
1251
1252 sas_target_priv_data = kzalloc(sizeof(struct scsi_target), GFP_KERNEL);
1253 if (!sas_target_priv_data)
1254 return -ENOMEM;
1255
1256 starget->hostdata = sas_target_priv_data;
1257 sas_target_priv_data->starget = starget;
1258 sas_target_priv_data->handle = MPT2SAS_INVALID_DEVICE_HANDLE;
1259
1260 /* RAID volumes */
1261 if (starget->channel == RAID_CHANNEL) {
1262 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1263 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1264 starget->channel);
1265 if (raid_device) {
1266 sas_target_priv_data->handle = raid_device->handle;
1267 sas_target_priv_data->sas_address = raid_device->wwid;
1268 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME;
1269 sas_target_priv_data->raid_device = raid_device;
1270 raid_device->starget = starget;
1271 }
1272 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1273 return 0;
1274 }
1275
1276 /* sas/sata devices */
1277 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1278 rphy = dev_to_rphy(starget->dev.parent);
1279 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1280 rphy->identify.sas_address);
1281
1282 if (sas_device) {
1283 sas_target_priv_data->handle = sas_device->handle;
1284 sas_target_priv_data->sas_address = sas_device->sas_address;
1285 sas_device->starget = starget;
1286 sas_device->id = starget->id;
1287 sas_device->channel = starget->channel;
1288 if (test_bit(sas_device->handle, ioc->pd_handles))
1289 sas_target_priv_data->flags |=
1290 MPT_TARGET_FLAGS_RAID_COMPONENT;
1291 }
1292 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1293
1294 return 0;
1295}
1296
1297/**
1298 * _scsih_target_destroy - target destroy routine
1299 * @starget: scsi target struct
1300 *
1301 * Returns nothing.
1302 */
1303static void
1304_scsih_target_destroy(struct scsi_target *starget)
1305{
1306 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1307 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1308 struct MPT2SAS_TARGET *sas_target_priv_data;
1309 struct _sas_device *sas_device;
1310 struct _raid_device *raid_device;
1311 unsigned long flags;
1312 struct sas_rphy *rphy;
1313
1314 sas_target_priv_data = starget->hostdata;
1315 if (!sas_target_priv_data)
1316 return;
1317
1318 if (starget->channel == RAID_CHANNEL) {
1319 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1320 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1321 starget->channel);
1322 if (raid_device) {
1323 raid_device->starget = NULL;
1324 raid_device->sdev = NULL;
1325 }
1326 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1327 goto out;
1328 }
1329
1330 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1331 rphy = dev_to_rphy(starget->dev.parent);
1332 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1333 rphy->identify.sas_address);
1334 if (sas_device && (sas_device->starget == starget) &&
1335 (sas_device->id == starget->id) &&
1336 (sas_device->channel == starget->channel))
1337 sas_device->starget = NULL;
1338
1339 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1340
1341 out:
1342 kfree(sas_target_priv_data);
1343 starget->hostdata = NULL;
1344}
1345
1346/**
1347 * _scsih_slave_alloc - device add routine
1348 * @sdev: scsi device struct
1349 *
1350 * Returns 0 if ok. Any other return is assumed to be an error and
1351 * the device is ignored.
1352 */
1353static int
1354_scsih_slave_alloc(struct scsi_device *sdev)
1355{
1356 struct Scsi_Host *shost;
1357 struct MPT2SAS_ADAPTER *ioc;
1358 struct MPT2SAS_TARGET *sas_target_priv_data;
1359 struct MPT2SAS_DEVICE *sas_device_priv_data;
1360 struct scsi_target *starget;
1361 struct _raid_device *raid_device;
1362 unsigned long flags;
1363
1364 sas_device_priv_data = kzalloc(sizeof(struct scsi_device), GFP_KERNEL);
1365 if (!sas_device_priv_data)
1366 return -ENOMEM;
1367
1368 sas_device_priv_data->lun = sdev->lun;
1369 sas_device_priv_data->flags = MPT_DEVICE_FLAGS_INIT;
1370
1371 starget = scsi_target(sdev);
1372 sas_target_priv_data = starget->hostdata;
1373 sas_target_priv_data->num_luns++;
1374 sas_device_priv_data->sas_target = sas_target_priv_data;
1375 sdev->hostdata = sas_device_priv_data;
1376 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT))
1377 sdev->no_uld_attach = 1;
1378
1379 shost = dev_to_shost(&starget->dev);
1380 ioc = shost_priv(shost);
1381 if (starget->channel == RAID_CHANNEL) {
1382 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1383 raid_device = _scsih_raid_device_find_by_id(ioc,
1384 starget->id, starget->channel);
1385 if (raid_device)
1386 raid_device->sdev = sdev; /* raid is single lun */
1387 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1388 }
1389
1390 return 0;
1391}
1392
1393/**
1394 * _scsih_slave_destroy - device destroy routine
1395 * @sdev: scsi device struct
1396 *
1397 * Returns nothing.
1398 */
1399static void
1400_scsih_slave_destroy(struct scsi_device *sdev)
1401{
1402 struct MPT2SAS_TARGET *sas_target_priv_data;
1403 struct scsi_target *starget;
1404
1405 if (!sdev->hostdata)
1406 return;
1407
1408 starget = scsi_target(sdev);
1409 sas_target_priv_data = starget->hostdata;
1410 sas_target_priv_data->num_luns--;
1411 kfree(sdev->hostdata);
1412 sdev->hostdata = NULL;
1413}
1414
1415/**
1416 * _scsih_display_sata_capabilities - sata capabilities
1417 * @ioc: per adapter object
1418 * @sas_device: the sas_device object
1419 * @sdev: scsi device struct
1420 */
1421static void
1422_scsih_display_sata_capabilities(struct MPT2SAS_ADAPTER *ioc,
1423 struct _sas_device *sas_device, struct scsi_device *sdev)
1424{
1425 Mpi2ConfigReply_t mpi_reply;
1426 Mpi2SasDevicePage0_t sas_device_pg0;
1427 u32 ioc_status;
1428 u16 flags;
1429 u32 device_info;
1430
1431 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
1432 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, sas_device->handle))) {
1433 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1434 ioc->name, __FILE__, __LINE__, __func__);
1435 return;
1436 }
1437
1438 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1439 MPI2_IOCSTATUS_MASK;
1440 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
1441 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1442 ioc->name, __FILE__, __LINE__, __func__);
1443 return;
1444 }
1445
1446 flags = le16_to_cpu(sas_device_pg0.Flags);
1447 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
1448
1449 sdev_printk(KERN_INFO, sdev,
1450 "atapi(%s), ncq(%s), asyn_notify(%s), smart(%s), fua(%s), "
1451 "sw_preserve(%s)\n",
1452 (device_info & MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? "y" : "n",
1453 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED) ? "y" : "n",
1454 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY) ? "y" :
1455 "n",
1456 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SMART_SUPPORTED) ? "y" : "n",
1457 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED) ? "y" : "n",
1458 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SW_PRESERVE) ? "y" : "n");
1459}
1460
1461/**
1462 * _scsih_is_raid - return boolean indicating device is raid volume
1463 * @dev the device struct object
1464 */
1465static int
1466_scsih_is_raid(struct device *dev)
1467{
1468 struct scsi_device *sdev = to_scsi_device(dev);
1469 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
1470
1471 if (ioc->is_warpdrive)
1472 return 0;
1473 return (sdev->channel == RAID_CHANNEL) ? 1 : 0;
1474}
1475
1476/**
1477 * _scsih_get_resync - get raid volume resync percent complete
1478 * @dev the device struct object
1479 */
1480static void
1481_scsih_get_resync(struct device *dev)
1482{
1483 struct scsi_device *sdev = to_scsi_device(dev);
1484 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
1485 static struct _raid_device *raid_device;
1486 unsigned long flags;
1487 Mpi2RaidVolPage0_t vol_pg0;
1488 Mpi2ConfigReply_t mpi_reply;
1489 u32 volume_status_flags;
1490 u8 percent_complete = 0;
1491
1492 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1493 raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
1494 sdev->channel);
1495 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1496
1497 if (!raid_device || ioc->is_warpdrive)
1498 goto out;
1499
1500 if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
1501 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle,
1502 sizeof(Mpi2RaidVolPage0_t))) {
1503 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1504 ioc->name, __FILE__, __LINE__, __func__);
1505 goto out;
1506 }
1507
1508 volume_status_flags = le32_to_cpu(vol_pg0.VolumeStatusFlags);
1509 if (volume_status_flags & MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS)
1510 percent_complete = raid_device->percent_complete;
1511 out:
1512 raid_set_resync(mpt2sas_raid_template, dev, percent_complete);
1513}
1514
1515/**
1516 * _scsih_get_state - get raid volume level
1517 * @dev the device struct object
1518 */
1519static void
1520_scsih_get_state(struct device *dev)
1521{
1522 struct scsi_device *sdev = to_scsi_device(dev);
1523 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
1524 static struct _raid_device *raid_device;
1525 unsigned long flags;
1526 Mpi2RaidVolPage0_t vol_pg0;
1527 Mpi2ConfigReply_t mpi_reply;
1528 u32 volstate;
1529 enum raid_state state = RAID_STATE_UNKNOWN;
1530
1531 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1532 raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
1533 sdev->channel);
1534 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1535
1536 if (!raid_device)
1537 goto out;
1538
1539 if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
1540 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle,
1541 sizeof(Mpi2RaidVolPage0_t))) {
1542 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1543 ioc->name, __FILE__, __LINE__, __func__);
1544 goto out;
1545 }
1546
1547 volstate = le32_to_cpu(vol_pg0.VolumeStatusFlags);
1548 if (volstate & MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS) {
1549 state = RAID_STATE_RESYNCING;
1550 goto out;
1551 }
1552
1553 switch (vol_pg0.VolumeState) {
1554 case MPI2_RAID_VOL_STATE_OPTIMAL:
1555 case MPI2_RAID_VOL_STATE_ONLINE:
1556 state = RAID_STATE_ACTIVE;
1557 break;
1558 case MPI2_RAID_VOL_STATE_DEGRADED:
1559 state = RAID_STATE_DEGRADED;
1560 break;
1561 case MPI2_RAID_VOL_STATE_FAILED:
1562 case MPI2_RAID_VOL_STATE_MISSING:
1563 state = RAID_STATE_OFFLINE;
1564 break;
1565 }
1566 out:
1567 raid_set_state(mpt2sas_raid_template, dev, state);
1568}
1569
1570/**
1571 * _scsih_set_level - set raid level
1572 * @sdev: scsi device struct
1573 * @raid_device: raid_device object
1574 */
1575static void
1576_scsih_set_level(struct scsi_device *sdev, struct _raid_device *raid_device)
1577{
1578 enum raid_level level = RAID_LEVEL_UNKNOWN;
1579
1580 switch (raid_device->volume_type) {
1581 case MPI2_RAID_VOL_TYPE_RAID0:
1582 level = RAID_LEVEL_0;
1583 break;
1584 case MPI2_RAID_VOL_TYPE_RAID10:
1585 level = RAID_LEVEL_10;
1586 break;
1587 case MPI2_RAID_VOL_TYPE_RAID1E:
1588 level = RAID_LEVEL_1E;
1589 break;
1590 case MPI2_RAID_VOL_TYPE_RAID1:
1591 level = RAID_LEVEL_1;
1592 break;
1593 }
1594
1595 raid_set_level(mpt2sas_raid_template, &sdev->sdev_gendev, level);
1596}
1597
1598/**
1599 * _scsih_get_volume_capabilities - volume capabilities
1600 * @ioc: per adapter object
1601 * @sas_device: the raid_device object
1602 */
1603static void
1604_scsih_get_volume_capabilities(struct MPT2SAS_ADAPTER *ioc,
1605 struct _raid_device *raid_device)
1606{
1607 Mpi2RaidVolPage0_t *vol_pg0;
1608 Mpi2RaidPhysDiskPage0_t pd_pg0;
1609 Mpi2SasDevicePage0_t sas_device_pg0;
1610 Mpi2ConfigReply_t mpi_reply;
1611 u16 sz;
1612 u8 num_pds;
1613
1614 if ((mpt2sas_config_get_number_pds(ioc, raid_device->handle,
1615 &num_pds)) || !num_pds) {
1616 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1617 ioc->name, __FILE__, __LINE__, __func__);
1618 return;
1619 }
1620
1621 raid_device->num_pds = num_pds;
1622 sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
1623 sizeof(Mpi2RaidVol0PhysDisk_t));
1624 vol_pg0 = kzalloc(sz, GFP_KERNEL);
1625 if (!vol_pg0) {
1626 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1627 ioc->name, __FILE__, __LINE__, __func__);
1628 return;
1629 }
1630
1631 if ((mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
1632 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
1633 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1634 ioc->name, __FILE__, __LINE__, __func__);
1635 kfree(vol_pg0);
1636 return;
1637 }
1638
1639 raid_device->volume_type = vol_pg0->VolumeType;
1640
1641 /* figure out what the underlying devices are by
1642 * obtaining the device_info bits for the 1st device
1643 */
1644 if (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
1645 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
1646 vol_pg0->PhysDisk[0].PhysDiskNum))) {
1647 if (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
1648 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
1649 le16_to_cpu(pd_pg0.DevHandle)))) {
1650 raid_device->device_info =
1651 le32_to_cpu(sas_device_pg0.DeviceInfo);
1652 }
1653 }
1654
1655 kfree(vol_pg0);
1656}
1657/**
1658 * _scsih_disable_ddio - Disable direct I/O for all the volumes
1659 * @ioc: per adapter object
1660 */
1661static void
1662_scsih_disable_ddio(struct MPT2SAS_ADAPTER *ioc)
1663{
1664 Mpi2RaidVolPage1_t vol_pg1;
1665 Mpi2ConfigReply_t mpi_reply;
1666 struct _raid_device *raid_device;
1667 u16 handle;
1668 u16 ioc_status;
1669
1670 handle = 0xFFFF;
1671 while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
1672 &vol_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
1673 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1674 MPI2_IOCSTATUS_MASK;
1675 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
1676 break;
1677 handle = le16_to_cpu(vol_pg1.DevHandle);
1678 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
1679 if (raid_device)
1680 raid_device->direct_io_enabled = 0;
1681 }
1682 return;
1683}
1684
1685
1686/**
1687 * _scsih_get_num_volumes - Get number of volumes in the ioc
1688 * @ioc: per adapter object
1689 */
1690static u8
1691_scsih_get_num_volumes(struct MPT2SAS_ADAPTER *ioc)
1692{
1693 Mpi2RaidVolPage1_t vol_pg1;
1694 Mpi2ConfigReply_t mpi_reply;
1695 u16 handle;
1696 u8 vol_cnt = 0;
1697 u16 ioc_status;
1698
1699 handle = 0xFFFF;
1700 while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
1701 &vol_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
1702 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1703 MPI2_IOCSTATUS_MASK;
1704 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
1705 break;
1706 vol_cnt++;
1707 handle = le16_to_cpu(vol_pg1.DevHandle);
1708 }
1709 return vol_cnt;
1710}
1711
1712
1713/**
1714 * _scsih_init_warpdrive_properties - Set properties for warpdrive direct I/O.
1715 * @ioc: per adapter object
1716 * @raid_device: the raid_device object
1717 */
1718static void
1719_scsih_init_warpdrive_properties(struct MPT2SAS_ADAPTER *ioc,
1720 struct _raid_device *raid_device)
1721{
1722 Mpi2RaidVolPage0_t *vol_pg0;
1723 Mpi2RaidPhysDiskPage0_t pd_pg0;
1724 Mpi2ConfigReply_t mpi_reply;
1725 u16 sz;
1726 u8 num_pds, count;
1727 u64 mb = 1024 * 1024;
1728 u64 tb_2 = 2 * mb * mb;
1729 u64 capacity;
1730 u32 stripe_sz;
1731 u8 i, stripe_exp;
1732
1733 if (!ioc->is_warpdrive)
1734 return;
1735
1736 if (ioc->mfg_pg10_hide_flag == MFG_PAGE10_EXPOSE_ALL_DISKS) {
1737 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1738 "globally as drives are exposed\n", ioc->name);
1739 return;
1740 }
1741 if (_scsih_get_num_volumes(ioc) > 1) {
1742 _scsih_disable_ddio(ioc);
1743 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1744 "globally as number of drives > 1\n", ioc->name);
1745 return;
1746 }
1747 if ((mpt2sas_config_get_number_pds(ioc, raid_device->handle,
1748 &num_pds)) || !num_pds) {
1749 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1750 "Failure in computing number of drives\n", ioc->name);
1751 return;
1752 }
1753
1754 sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
1755 sizeof(Mpi2RaidVol0PhysDisk_t));
1756 vol_pg0 = kzalloc(sz, GFP_KERNEL);
1757 if (!vol_pg0) {
1758 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1759 "Memory allocation failure for RVPG0\n", ioc->name);
1760 return;
1761 }
1762
1763 if ((mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
1764 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
1765 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1766 "Failure in retrieving RVPG0\n", ioc->name);
1767 kfree(vol_pg0);
1768 return;
1769 }
1770
1771 /*
1772 * WARPDRIVE:If number of physical disks in a volume exceeds the max pds
1773 * assumed for WARPDRIVE, disable direct I/O
1774 */
1775 if (num_pds > MPT_MAX_WARPDRIVE_PDS) {
1776 printk(MPT2SAS_WARN_FMT "WarpDrive : Direct IO is disabled "
1777 "for the drive with handle(0x%04x): num_mem=%d, "
1778 "max_mem_allowed=%d\n", ioc->name, raid_device->handle,
1779 num_pds, MPT_MAX_WARPDRIVE_PDS);
1780 kfree(vol_pg0);
1781 return;
1782 }
1783 for (count = 0; count < num_pds; count++) {
1784 if (mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
1785 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
1786 vol_pg0->PhysDisk[count].PhysDiskNum) ||
1787 pd_pg0.DevHandle == MPT2SAS_INVALID_DEVICE_HANDLE) {
1788 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is "
1789 "disabled for the drive with handle(0x%04x) member"
1790 "handle retrieval failed for member number=%d\n",
1791 ioc->name, raid_device->handle,
1792 vol_pg0->PhysDisk[count].PhysDiskNum);
1793 goto out_error;
1794 }
1795 raid_device->pd_handle[count] = le16_to_cpu(pd_pg0.DevHandle);
1796 }
1797
1798 /*
1799 * Assumption for WD: Direct I/O is not supported if the volume is
1800 * not RAID0, if the stripe size is not 64KB, if the block size is
1801 * not 512 and if the volume size is >2TB
1802 */
1803 if (raid_device->volume_type != MPI2_RAID_VOL_TYPE_RAID0 ||
1804 le16_to_cpu(vol_pg0->BlockSize) != 512) {
1805 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1806 "for the drive with handle(0x%04x): type=%d, "
1807 "s_sz=%uK, blk_size=%u\n", ioc->name,
1808 raid_device->handle, raid_device->volume_type,
1809 le32_to_cpu(vol_pg0->StripeSize)/2,
1810 le16_to_cpu(vol_pg0->BlockSize));
1811 goto out_error;
1812 }
1813
1814 capacity = (u64) le16_to_cpu(vol_pg0->BlockSize) *
1815 (le64_to_cpu(vol_pg0->MaxLBA) + 1);
1816
1817 if (capacity > tb_2) {
1818 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1819 "for the drive with handle(0x%04x) since drive sz > 2TB\n",
1820 ioc->name, raid_device->handle);
1821 goto out_error;
1822 }
1823
1824 stripe_sz = le32_to_cpu(vol_pg0->StripeSize);
1825 stripe_exp = 0;
1826 for (i = 0; i < 32; i++) {
1827 if (stripe_sz & 1)
1828 break;
1829 stripe_exp++;
1830 stripe_sz >>= 1;
1831 }
1832 if (i == 32) {
1833 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1834 "for the drive with handle(0x%04x) invalid stripe sz %uK\n",
1835 ioc->name, raid_device->handle,
1836 le32_to_cpu(vol_pg0->StripeSize)/2);
1837 goto out_error;
1838 }
1839 raid_device->stripe_exponent = stripe_exp;
1840 raid_device->direct_io_enabled = 1;
1841
1842 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is Enabled for the drive"
1843 " with handle(0x%04x)\n", ioc->name, raid_device->handle);
1844 /*
1845 * WARPDRIVE: Though the following fields are not used for direct IO,
1846 * stored for future purpose:
1847 */
1848 raid_device->max_lba = le64_to_cpu(vol_pg0->MaxLBA);
1849 raid_device->stripe_sz = le32_to_cpu(vol_pg0->StripeSize);
1850 raid_device->block_sz = le16_to_cpu(vol_pg0->BlockSize);
1851
1852
1853 kfree(vol_pg0);
1854 return;
1855
1856out_error:
1857 raid_device->direct_io_enabled = 0;
1858 for (count = 0; count < num_pds; count++)
1859 raid_device->pd_handle[count] = 0;
1860 kfree(vol_pg0);
1861 return;
1862}
1863
1864/**
1865 * _scsih_enable_tlr - setting TLR flags
1866 * @ioc: per adapter object
1867 * @sdev: scsi device struct
1868 *
1869 * Enabling Transaction Layer Retries for tape devices when
1870 * vpd page 0x90 is present
1871 *
1872 */
1873static void
1874_scsih_enable_tlr(struct MPT2SAS_ADAPTER *ioc, struct scsi_device *sdev)
1875{
1876 /* only for TAPE */
1877 if (sdev->type != TYPE_TAPE)
1878 return;
1879
1880 if (!(ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR))
1881 return;
1882
1883 sas_enable_tlr(sdev);
1884 sdev_printk(KERN_INFO, sdev, "TLR %s\n",
1885 sas_is_tlr_enabled(sdev) ? "Enabled" : "Disabled");
1886 return;
1887
1888}
1889
1890/**
1891 * _scsih_slave_configure - device configure routine.
1892 * @sdev: scsi device struct
1893 *
1894 * Returns 0 if ok. Any other return is assumed to be an error and
1895 * the device is ignored.
1896 */
1897static int
1898_scsih_slave_configure(struct scsi_device *sdev)
1899{
1900 struct Scsi_Host *shost = sdev->host;
1901 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1902 struct MPT2SAS_DEVICE *sas_device_priv_data;
1903 struct MPT2SAS_TARGET *sas_target_priv_data;
1904 struct _sas_device *sas_device;
1905 struct _raid_device *raid_device;
1906 unsigned long flags;
1907 int qdepth;
1908 u8 ssp_target = 0;
1909 char *ds = "";
1910 char *r_level = "";
1911
1912 qdepth = 1;
1913 sas_device_priv_data = sdev->hostdata;
1914 sas_device_priv_data->configured_lun = 1;
1915 sas_device_priv_data->flags &= ~MPT_DEVICE_FLAGS_INIT;
1916 sas_target_priv_data = sas_device_priv_data->sas_target;
1917
1918 /* raid volume handling */
1919 if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME) {
1920
1921 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1922 raid_device = _scsih_raid_device_find_by_handle(ioc,
1923 sas_target_priv_data->handle);
1924 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1925 if (!raid_device) {
1926 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1927 ioc->name, __FILE__, __LINE__, __func__);
1928 return 0;
1929 }
1930
1931 _scsih_get_volume_capabilities(ioc, raid_device);
1932
1933 /*
1934 * WARPDRIVE: Initialize the required data for Direct IO
1935 */
1936 _scsih_init_warpdrive_properties(ioc, raid_device);
1937
1938 /* RAID Queue Depth Support
1939 * IS volume = underlying qdepth of drive type, either
1940 * MPT2SAS_SAS_QUEUE_DEPTH or MPT2SAS_SATA_QUEUE_DEPTH
1941 * IM/IME/R10 = 128 (MPT2SAS_RAID_QUEUE_DEPTH)
1942 */
1943 if (raid_device->device_info &
1944 MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
1945 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
1946 ds = "SSP";
1947 } else {
1948 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
1949 if (raid_device->device_info &
1950 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1951 ds = "SATA";
1952 else
1953 ds = "STP";
1954 }
1955
1956 switch (raid_device->volume_type) {
1957 case MPI2_RAID_VOL_TYPE_RAID0:
1958 r_level = "RAID0";
1959 break;
1960 case MPI2_RAID_VOL_TYPE_RAID1E:
1961 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1962 if (ioc->manu_pg10.OEMIdentifier &&
1963 (le32_to_cpu(ioc->manu_pg10.GenericFlags0) &
1964 MFG10_GF0_R10_DISPLAY) &&
1965 !(raid_device->num_pds % 2))
1966 r_level = "RAID10";
1967 else
1968 r_level = "RAID1E";
1969 break;
1970 case MPI2_RAID_VOL_TYPE_RAID1:
1971 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1972 r_level = "RAID1";
1973 break;
1974 case MPI2_RAID_VOL_TYPE_RAID10:
1975 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1976 r_level = "RAID10";
1977 break;
1978 case MPI2_RAID_VOL_TYPE_UNKNOWN:
1979 default:
1980 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1981 r_level = "RAIDX";
1982 break;
1983 }
1984
1985 if (!ioc->hide_ir_msg)
1986 sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), "
1987 "wwid(0x%016llx), pd_count(%d), type(%s)\n",
1988 r_level, raid_device->handle,
1989 (unsigned long long)raid_device->wwid,
1990 raid_device->num_pds, ds);
1991 _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
1992 /* raid transport support */
1993 if (!ioc->is_warpdrive)
1994 _scsih_set_level(sdev, raid_device);
1995 return 0;
1996 }
1997
1998 /* non-raid handling */
1999 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2000 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
2001 sas_device_priv_data->sas_target->sas_address);
2002 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2003 if (sas_device) {
2004 if (sas_target_priv_data->flags &
2005 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2006 mpt2sas_config_get_volume_handle(ioc,
2007 sas_device->handle, &sas_device->volume_handle);
2008 mpt2sas_config_get_volume_wwid(ioc,
2009 sas_device->volume_handle,
2010 &sas_device->volume_wwid);
2011 }
2012 if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
2013 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
2014 ssp_target = 1;
2015 ds = "SSP";
2016 } else {
2017 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
2018 if (sas_device->device_info &
2019 MPI2_SAS_DEVICE_INFO_STP_TARGET)
2020 ds = "STP";
2021 else if (sas_device->device_info &
2022 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
2023 ds = "SATA";
2024 }
2025
2026 sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), "
2027 "sas_addr(0x%016llx), phy(%d), device_name(0x%016llx)\n",
2028 ds, sas_device->handle,
2029 (unsigned long long)sas_device->sas_address,
2030 sas_device->phy,
2031 (unsigned long long)sas_device->device_name);
2032 sdev_printk(KERN_INFO, sdev, "%s: "
2033 "enclosure_logical_id(0x%016llx), slot(%d)\n", ds,
2034 (unsigned long long) sas_device->enclosure_logical_id,
2035 sas_device->slot);
2036
2037 if (!ssp_target)
2038 _scsih_display_sata_capabilities(ioc, sas_device, sdev);
2039 }
2040
2041 _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
2042
2043 if (ssp_target) {
2044 sas_read_port_mode_page(sdev);
2045 _scsih_enable_tlr(ioc, sdev);
2046 }
2047 return 0;
2048}
2049
2050/**
2051 * _scsih_bios_param - fetch head, sector, cylinder info for a disk
2052 * @sdev: scsi device struct
2053 * @bdev: pointer to block device context
2054 * @capacity: device size (in 512 byte sectors)
2055 * @params: three element array to place output:
2056 * params[0] number of heads (max 255)
2057 * params[1] number of sectors (max 63)
2058 * params[2] number of cylinders
2059 *
2060 * Return nothing.
2061 */
2062static int
2063_scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev,
2064 sector_t capacity, int params[])
2065{
2066 int heads;
2067 int sectors;
2068 sector_t cylinders;
2069 ulong dummy;
2070
2071 heads = 64;
2072 sectors = 32;
2073
2074 dummy = heads * sectors;
2075 cylinders = capacity;
2076 sector_div(cylinders, dummy);
2077
2078 /*
2079 * Handle extended translation size for logical drives
2080 * > 1Gb
2081 */
2082 if ((ulong)capacity >= 0x200000) {
2083 heads = 255;
2084 sectors = 63;
2085 dummy = heads * sectors;
2086 cylinders = capacity;
2087 sector_div(cylinders, dummy);
2088 }
2089
2090 /* return result */
2091 params[0] = heads;
2092 params[1] = sectors;
2093 params[2] = cylinders;
2094
2095 return 0;
2096}
2097
2098/**
2099 * _scsih_response_code - translation of device response code
2100 * @ioc: per adapter object
2101 * @response_code: response code returned by the device
2102 *
2103 * Return nothing.
2104 */
2105static void
2106_scsih_response_code(struct MPT2SAS_ADAPTER *ioc, u8 response_code)
2107{
2108 char *desc;
2109
2110 switch (response_code) {
2111 case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE:
2112 desc = "task management request completed";
2113 break;
2114 case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME:
2115 desc = "invalid frame";
2116 break;
2117 case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2118 desc = "task management request not supported";
2119 break;
2120 case MPI2_SCSITASKMGMT_RSP_TM_FAILED:
2121 desc = "task management request failed";
2122 break;
2123 case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2124 desc = "task management request succeeded";
2125 break;
2126 case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2127 desc = "invalid lun";
2128 break;
2129 case 0xA:
2130 desc = "overlapped tag attempted";
2131 break;
2132 case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2133 desc = "task queued, however not sent to target";
2134 break;
2135 default:
2136 desc = "unknown";
2137 break;
2138 }
2139 printk(MPT2SAS_WARN_FMT "response_code(0x%01x): %s\n",
2140 ioc->name, response_code, desc);
2141}
2142
2143/**
2144 * _scsih_tm_done - tm completion routine
2145 * @ioc: per adapter object
2146 * @smid: system request message index
2147 * @msix_index: MSIX table index supplied by the OS
2148 * @reply: reply message frame(lower 32bit addr)
2149 * Context: none.
2150 *
2151 * The callback handler when using scsih_issue_tm.
2152 *
2153 * Return 1 meaning mf should be freed from _base_interrupt
2154 * 0 means the mf is freed from this function.
2155 */
2156static u8
2157_scsih_tm_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
2158{
2159 MPI2DefaultReply_t *mpi_reply;
2160
2161 if (ioc->tm_cmds.status == MPT2_CMD_NOT_USED)
2162 return 1;
2163 if (ioc->tm_cmds.smid != smid)
2164 return 1;
2165 ioc->tm_cmds.status |= MPT2_CMD_COMPLETE;
2166 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
2167 if (mpi_reply) {
2168 memcpy(ioc->tm_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
2169 ioc->tm_cmds.status |= MPT2_CMD_REPLY_VALID;
2170 }
2171 ioc->tm_cmds.status &= ~MPT2_CMD_PENDING;
2172 complete(&ioc->tm_cmds.done);
2173 return 1;
2174}
2175
2176/**
2177 * mpt2sas_scsih_set_tm_flag - set per target tm_busy
2178 * @ioc: per adapter object
2179 * @handle: device handle
2180 *
2181 * During taskmangement request, we need to freeze the device queue.
2182 */
2183void
2184mpt2sas_scsih_set_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2185{
2186 struct MPT2SAS_DEVICE *sas_device_priv_data;
2187 struct scsi_device *sdev;
2188 u8 skip = 0;
2189
2190 shost_for_each_device(sdev, ioc->shost) {
2191 if (skip)
2192 continue;
2193 sas_device_priv_data = sdev->hostdata;
2194 if (!sas_device_priv_data)
2195 continue;
2196 if (sas_device_priv_data->sas_target->handle == handle) {
2197 sas_device_priv_data->sas_target->tm_busy = 1;
2198 skip = 1;
2199 ioc->ignore_loginfos = 1;
2200 }
2201 }
2202}
2203
2204/**
2205 * mpt2sas_scsih_clear_tm_flag - clear per target tm_busy
2206 * @ioc: per adapter object
2207 * @handle: device handle
2208 *
2209 * During taskmangement request, we need to freeze the device queue.
2210 */
2211void
2212mpt2sas_scsih_clear_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2213{
2214 struct MPT2SAS_DEVICE *sas_device_priv_data;
2215 struct scsi_device *sdev;
2216 u8 skip = 0;
2217
2218 shost_for_each_device(sdev, ioc->shost) {
2219 if (skip)
2220 continue;
2221 sas_device_priv_data = sdev->hostdata;
2222 if (!sas_device_priv_data)
2223 continue;
2224 if (sas_device_priv_data->sas_target->handle == handle) {
2225 sas_device_priv_data->sas_target->tm_busy = 0;
2226 skip = 1;
2227 ioc->ignore_loginfos = 0;
2228 }
2229 }
2230}
2231
2232
2233/**
2234 * mpt2sas_scsih_issue_tm - main routine for sending tm requests
2235 * @ioc: per adapter struct
2236 * @device_handle: device handle
2237 * @channel: the channel assigned by the OS
2238 * @id: the id assigned by the OS
2239 * @lun: lun number
2240 * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
2241 * @smid_task: smid assigned to the task
2242 * @timeout: timeout in seconds
2243 * @serial_number: the serial_number from scmd
2244 * @m_type: TM_MUTEX_ON or TM_MUTEX_OFF
2245 * Context: user
2246 *
2247 * A generic API for sending task management requests to firmware.
2248 *
2249 * The callback index is set inside `ioc->tm_cb_idx`.
2250 *
2251 * Return SUCCESS or FAILED.
2252 */
2253int
2254mpt2sas_scsih_issue_tm(struct MPT2SAS_ADAPTER *ioc, u16 handle, uint channel,
2255 uint id, uint lun, u8 type, u16 smid_task, ulong timeout,
2256 unsigned long serial_number, enum mutex_type m_type)
2257{
2258 Mpi2SCSITaskManagementRequest_t *mpi_request;
2259 Mpi2SCSITaskManagementReply_t *mpi_reply;
2260 u16 smid = 0;
2261 u32 ioc_state;
2262 unsigned long timeleft;
2263 struct scsiio_tracker *scsi_lookup = NULL;
2264 int rc;
2265
2266 if (m_type == TM_MUTEX_ON)
2267 mutex_lock(&ioc->tm_cmds.mutex);
2268 if (ioc->tm_cmds.status != MPT2_CMD_NOT_USED) {
2269 printk(MPT2SAS_INFO_FMT "%s: tm_cmd busy!!!\n",
2270 __func__, ioc->name);
2271 rc = FAILED;
2272 goto err_out;
2273 }
2274
2275 if (ioc->shost_recovery || ioc->remove_host ||
2276 ioc->pci_error_recovery) {
2277 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
2278 __func__, ioc->name);
2279 rc = FAILED;
2280 goto err_out;
2281 }
2282
2283 ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
2284 if (ioc_state & MPI2_DOORBELL_USED) {
2285 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "unexpected doorbell "
2286 "active!\n", ioc->name));
2287 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2288 FORCE_BIG_HAMMER);
2289 rc = (!rc) ? SUCCESS : FAILED;
2290 goto err_out;
2291 }
2292
2293 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
2294 mpt2sas_base_fault_info(ioc, ioc_state &
2295 MPI2_DOORBELL_DATA_MASK);
2296 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2297 FORCE_BIG_HAMMER);
2298 rc = (!rc) ? SUCCESS : FAILED;
2299 goto err_out;
2300 }
2301
2302 smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_cb_idx);
2303 if (!smid) {
2304 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
2305 ioc->name, __func__);
2306 rc = FAILED;
2307 goto err_out;
2308 }
2309
2310 if (type == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
2311 scsi_lookup = &ioc->scsi_lookup[smid_task - 1];
2312
2313 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "sending tm: handle(0x%04x),"
2314 " task_type(0x%02x), smid(%d)\n", ioc->name, handle, type,
2315 smid_task));
2316 ioc->tm_cmds.status = MPT2_CMD_PENDING;
2317 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
2318 ioc->tm_cmds.smid = smid;
2319 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
2320 memset(ioc->tm_cmds.reply, 0, sizeof(Mpi2SCSITaskManagementReply_t));
2321 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
2322 mpi_request->DevHandle = cpu_to_le16(handle);
2323 mpi_request->TaskType = type;
2324 mpi_request->TaskMID = cpu_to_le16(smid_task);
2325 int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN);
2326 mpt2sas_scsih_set_tm_flag(ioc, handle);
2327 init_completion(&ioc->tm_cmds.done);
2328 mpt2sas_base_put_smid_hi_priority(ioc, smid);
2329 timeleft = wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
2330 if (!(ioc->tm_cmds.status & MPT2_CMD_COMPLETE)) {
2331 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
2332 ioc->name, __func__);
2333 _debug_dump_mf(mpi_request,
2334 sizeof(Mpi2SCSITaskManagementRequest_t)/4);
2335 if (!(ioc->tm_cmds.status & MPT2_CMD_RESET)) {
2336 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2337 FORCE_BIG_HAMMER);
2338 rc = (!rc) ? SUCCESS : FAILED;
2339 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
2340 mpt2sas_scsih_clear_tm_flag(ioc, handle);
2341 goto err_out;
2342 }
2343 }
2344
2345 if (ioc->tm_cmds.status & MPT2_CMD_REPLY_VALID) {
2346 mpi_reply = ioc->tm_cmds.reply;
2347 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "complete tm: "
2348 "ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n",
2349 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
2350 le32_to_cpu(mpi_reply->IOCLogInfo),
2351 le32_to_cpu(mpi_reply->TerminationCount)));
2352 if (ioc->logging_level & MPT_DEBUG_TM) {
2353 _scsih_response_code(ioc, mpi_reply->ResponseCode);
2354 if (mpi_reply->IOCStatus)
2355 _debug_dump_mf(mpi_request,
2356 sizeof(Mpi2SCSITaskManagementRequest_t)/4);
2357 }
2358 }
2359
2360 switch (type) {
2361 case MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
2362 rc = SUCCESS;
2363 if (scsi_lookup->scmd == NULL)
2364 break;
2365 rc = FAILED;
2366 break;
2367
2368 case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
2369 if (_scsih_scsi_lookup_find_by_target(ioc, id, channel))
2370 rc = FAILED;
2371 else
2372 rc = SUCCESS;
2373 break;
2374
2375 case MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET:
2376 case MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET:
2377 if (_scsih_scsi_lookup_find_by_lun(ioc, id, lun, channel))
2378 rc = FAILED;
2379 else
2380 rc = SUCCESS;
2381 break;
2382 case MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK:
2383 rc = SUCCESS;
2384 break;
2385 default:
2386 rc = FAILED;
2387 break;
2388 }
2389
2390 mpt2sas_scsih_clear_tm_flag(ioc, handle);
2391 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
2392 if (m_type == TM_MUTEX_ON)
2393 mutex_unlock(&ioc->tm_cmds.mutex);
2394
2395 return rc;
2396
2397 err_out:
2398 if (m_type == TM_MUTEX_ON)
2399 mutex_unlock(&ioc->tm_cmds.mutex);
2400 return rc;
2401}
2402
2403/**
2404 * _scsih_tm_display_info - displays info about the device
2405 * @ioc: per adapter struct
2406 * @scmd: pointer to scsi command object
2407 *
2408 * Called by task management callback handlers.
2409 */
2410static void
2411_scsih_tm_display_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd)
2412{
2413 struct scsi_target *starget = scmd->device->sdev_target;
2414 struct MPT2SAS_TARGET *priv_target = starget->hostdata;
2415 struct _sas_device *sas_device = NULL;
2416 unsigned long flags;
2417 char *device_str = NULL;
2418
2419 if (!priv_target)
2420 return;
2421 if (ioc->hide_ir_msg)
2422 device_str = "WarpDrive";
2423 else
2424 device_str = "volume";
2425
2426 scsi_print_command(scmd);
2427 if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
2428 starget_printk(KERN_INFO, starget, "%s handle(0x%04x), "
2429 "%s wwid(0x%016llx)\n", device_str, priv_target->handle,
2430 device_str, (unsigned long long)priv_target->sas_address);
2431 } else {
2432 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2433 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
2434 priv_target->sas_address);
2435 if (sas_device) {
2436 if (priv_target->flags &
2437 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2438 starget_printk(KERN_INFO, starget,
2439 "volume handle(0x%04x), "
2440 "volume wwid(0x%016llx)\n",
2441 sas_device->volume_handle,
2442 (unsigned long long)sas_device->volume_wwid);
2443 }
2444 starget_printk(KERN_INFO, starget,
2445 "handle(0x%04x), sas_address(0x%016llx), phy(%d)\n",
2446 sas_device->handle,
2447 (unsigned long long)sas_device->sas_address,
2448 sas_device->phy);
2449 starget_printk(KERN_INFO, starget,
2450 "enclosure_logical_id(0x%016llx), slot(%d)\n",
2451 (unsigned long long)sas_device->enclosure_logical_id,
2452 sas_device->slot);
2453 }
2454 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2455 }
2456}
2457
2458/**
2459 * _scsih_abort - eh threads main abort routine
2460 * @scmd: pointer to scsi command object
2461 *
2462 * Returns SUCCESS if command aborted else FAILED
2463 */
2464static int
2465_scsih_abort(struct scsi_cmnd *scmd)
2466{
2467 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2468 struct MPT2SAS_DEVICE *sas_device_priv_data;
2469 u16 smid;
2470 u16 handle;
2471 int r;
2472
2473 sdev_printk(KERN_INFO, scmd->device, "attempting task abort! "
2474 "scmd(%p)\n", scmd);
2475 _scsih_tm_display_info(ioc, scmd);
2476
2477 sas_device_priv_data = scmd->device->hostdata;
2478 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2479 sdev_printk(KERN_INFO, scmd->device, "device been deleted! "
2480 "scmd(%p)\n", scmd);
2481 scmd->result = DID_NO_CONNECT << 16;
2482 scmd->scsi_done(scmd);
2483 r = SUCCESS;
2484 goto out;
2485 }
2486
2487 /* search for the command */
2488 smid = _scsih_scsi_lookup_find_by_scmd(ioc, scmd);
2489 if (!smid) {
2490 scmd->result = DID_RESET << 16;
2491 r = SUCCESS;
2492 goto out;
2493 }
2494
2495 /* for hidden raid components and volumes this is not supported */
2496 if (sas_device_priv_data->sas_target->flags &
2497 MPT_TARGET_FLAGS_RAID_COMPONENT ||
2498 sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_VOLUME) {
2499 scmd->result = DID_RESET << 16;
2500 r = FAILED;
2501 goto out;
2502 }
2503
2504 mpt2sas_halt_firmware(ioc);
2505
2506 handle = sas_device_priv_data->sas_target->handle;
2507 r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2508 scmd->device->id, scmd->device->lun,
2509 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30,
2510 scmd->serial_number, TM_MUTEX_ON);
2511
2512 out:
2513 sdev_printk(KERN_INFO, scmd->device, "task abort: %s scmd(%p)\n",
2514 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2515 return r;
2516}
2517
2518/**
2519 * _scsih_dev_reset - eh threads main device reset routine
2520 * @scmd: pointer to scsi command object
2521 *
2522 * Returns SUCCESS if command aborted else FAILED
2523 */
2524static int
2525_scsih_dev_reset(struct scsi_cmnd *scmd)
2526{
2527 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2528 struct MPT2SAS_DEVICE *sas_device_priv_data;
2529 struct _sas_device *sas_device;
2530 unsigned long flags;
2531 u16 handle;
2532 int r;
2533
2534 struct scsi_target *starget = scmd->device->sdev_target;
2535
2536 starget_printk(KERN_INFO, starget, "attempting device reset! "
2537 "scmd(%p)\n", scmd);
2538 _scsih_tm_display_info(ioc, scmd);
2539
2540 sas_device_priv_data = scmd->device->hostdata;
2541 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2542 starget_printk(KERN_INFO, starget, "device been deleted! "
2543 "scmd(%p)\n", scmd);
2544 scmd->result = DID_NO_CONNECT << 16;
2545 scmd->scsi_done(scmd);
2546 r = SUCCESS;
2547 goto out;
2548 }
2549
2550 /* for hidden raid components obtain the volume_handle */
2551 handle = 0;
2552 if (sas_device_priv_data->sas_target->flags &
2553 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2554 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2555 sas_device = _scsih_sas_device_find_by_handle(ioc,
2556 sas_device_priv_data->sas_target->handle);
2557 if (sas_device)
2558 handle = sas_device->volume_handle;
2559 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2560 } else
2561 handle = sas_device_priv_data->sas_target->handle;
2562
2563 if (!handle) {
2564 scmd->result = DID_RESET << 16;
2565 r = FAILED;
2566 goto out;
2567 }
2568
2569 r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2570 scmd->device->id, scmd->device->lun,
2571 MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 30, 0,
2572 TM_MUTEX_ON);
2573
2574 out:
2575 sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n",
2576 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2577 return r;
2578}
2579
2580/**
2581 * _scsih_target_reset - eh threads main target reset routine
2582 * @scmd: pointer to scsi command object
2583 *
2584 * Returns SUCCESS if command aborted else FAILED
2585 */
2586static int
2587_scsih_target_reset(struct scsi_cmnd *scmd)
2588{
2589 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2590 struct MPT2SAS_DEVICE *sas_device_priv_data;
2591 struct _sas_device *sas_device;
2592 unsigned long flags;
2593 u16 handle;
2594 int r;
2595 struct scsi_target *starget = scmd->device->sdev_target;
2596
2597 starget_printk(KERN_INFO, starget, "attempting target reset! "
2598 "scmd(%p)\n", scmd);
2599 _scsih_tm_display_info(ioc, scmd);
2600
2601 sas_device_priv_data = scmd->device->hostdata;
2602 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2603 starget_printk(KERN_INFO, starget, "target been deleted! "
2604 "scmd(%p)\n", scmd);
2605 scmd->result = DID_NO_CONNECT << 16;
2606 scmd->scsi_done(scmd);
2607 r = SUCCESS;
2608 goto out;
2609 }
2610
2611 /* for hidden raid components obtain the volume_handle */
2612 handle = 0;
2613 if (sas_device_priv_data->sas_target->flags &
2614 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2615 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2616 sas_device = _scsih_sas_device_find_by_handle(ioc,
2617 sas_device_priv_data->sas_target->handle);
2618 if (sas_device)
2619 handle = sas_device->volume_handle;
2620 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2621 } else
2622 handle = sas_device_priv_data->sas_target->handle;
2623
2624 if (!handle) {
2625 scmd->result = DID_RESET << 16;
2626 r = FAILED;
2627 goto out;
2628 }
2629
2630 r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2631 scmd->device->id, 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
2632 30, 0, TM_MUTEX_ON);
2633
2634 out:
2635 starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n",
2636 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2637 return r;
2638}
2639
2640/**
2641 * _scsih_host_reset - eh threads main host reset routine
2642 * @scmd: pointer to scsi command object
2643 *
2644 * Returns SUCCESS if command aborted else FAILED
2645 */
2646static int
2647_scsih_host_reset(struct scsi_cmnd *scmd)
2648{
2649 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2650 int r, retval;
2651
2652 printk(MPT2SAS_INFO_FMT "attempting host reset! scmd(%p)\n",
2653 ioc->name, scmd);
2654 scsi_print_command(scmd);
2655
2656 retval = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2657 FORCE_BIG_HAMMER);
2658 r = (retval < 0) ? FAILED : SUCCESS;
2659 printk(MPT2SAS_INFO_FMT "host reset: %s scmd(%p)\n",
2660 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2661
2662 return r;
2663}
2664
2665/**
2666 * _scsih_fw_event_add - insert and queue up fw_event
2667 * @ioc: per adapter object
2668 * @fw_event: object describing the event
2669 * Context: This function will acquire ioc->fw_event_lock.
2670 *
2671 * This adds the firmware event object into link list, then queues it up to
2672 * be processed from user context.
2673 *
2674 * Return nothing.
2675 */
2676static void
2677_scsih_fw_event_add(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
2678{
2679 unsigned long flags;
2680
2681 if (ioc->firmware_event_thread == NULL)
2682 return;
2683
2684 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2685 list_add_tail(&fw_event->list, &ioc->fw_event_list);
2686 INIT_DELAYED_WORK(&fw_event->delayed_work, _firmware_event_work);
2687 queue_delayed_work(ioc->firmware_event_thread,
2688 &fw_event->delayed_work, 0);
2689 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2690}
2691
2692/**
2693 * _scsih_fw_event_free - delete fw_event
2694 * @ioc: per adapter object
2695 * @fw_event: object describing the event
2696 * Context: This function will acquire ioc->fw_event_lock.
2697 *
2698 * This removes firmware event object from link list, frees associated memory.
2699 *
2700 * Return nothing.
2701 */
2702static void
2703_scsih_fw_event_free(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
2704 *fw_event)
2705{
2706 unsigned long flags;
2707
2708 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2709 list_del(&fw_event->list);
2710 kfree(fw_event->event_data);
2711 kfree(fw_event);
2712 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2713}
2714
2715
2716/**
2717 * _scsih_queue_rescan - queue a topology rescan from user context
2718 * @ioc: per adapter object
2719 *
2720 * Return nothing.
2721 */
2722static void
2723_scsih_queue_rescan(struct MPT2SAS_ADAPTER *ioc)
2724{
2725 struct fw_event_work *fw_event;
2726
2727 if (ioc->wait_for_port_enable_to_complete)
2728 return;
2729 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
2730 if (!fw_event)
2731 return;
2732 fw_event->event = MPT2SAS_RESCAN_AFTER_HOST_RESET;
2733 fw_event->ioc = ioc;
2734 _scsih_fw_event_add(ioc, fw_event);
2735}
2736
2737/**
2738 * _scsih_fw_event_cleanup_queue - cleanup event queue
2739 * @ioc: per adapter object
2740 *
2741 * Walk the firmware event queue, either killing timers, or waiting
2742 * for outstanding events to complete
2743 *
2744 * Return nothing.
2745 */
2746static void
2747_scsih_fw_event_cleanup_queue(struct MPT2SAS_ADAPTER *ioc)
2748{
2749 struct fw_event_work *fw_event, *next;
2750
2751 if (list_empty(&ioc->fw_event_list) ||
2752 !ioc->firmware_event_thread || in_interrupt())
2753 return;
2754
2755 list_for_each_entry_safe(fw_event, next, &ioc->fw_event_list, list) {
2756 if (cancel_delayed_work(&fw_event->delayed_work)) {
2757 _scsih_fw_event_free(ioc, fw_event);
2758 continue;
2759 }
2760 fw_event->cancel_pending_work = 1;
2761 }
2762}
2763
2764/**
2765 * _scsih_ublock_io_all_device - unblock every device
2766 * @ioc: per adapter object
2767 *
2768 * change the device state from block to running
2769 */
2770static void
2771_scsih_ublock_io_all_device(struct MPT2SAS_ADAPTER *ioc)
2772{
2773 struct MPT2SAS_DEVICE *sas_device_priv_data;
2774 struct scsi_device *sdev;
2775
2776 shost_for_each_device(sdev, ioc->shost) {
2777 sas_device_priv_data = sdev->hostdata;
2778 if (!sas_device_priv_data)
2779 continue;
2780 if (!sas_device_priv_data->block)
2781 continue;
2782 sas_device_priv_data->block = 0;
2783 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev, "device_running, "
2784 "handle(0x%04x)\n",
2785 sas_device_priv_data->sas_target->handle));
2786 scsi_internal_device_unblock(sdev);
2787 }
2788}
2789/**
2790 * _scsih_ublock_io_device - set the device state to SDEV_RUNNING
2791 * @ioc: per adapter object
2792 * @handle: device handle
2793 *
2794 * During device pull we need to appropiately set the sdev state.
2795 */
2796static void
2797_scsih_ublock_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2798{
2799 struct MPT2SAS_DEVICE *sas_device_priv_data;
2800 struct scsi_device *sdev;
2801
2802 shost_for_each_device(sdev, ioc->shost) {
2803 sas_device_priv_data = sdev->hostdata;
2804 if (!sas_device_priv_data)
2805 continue;
2806 if (!sas_device_priv_data->block)
2807 continue;
2808 if (sas_device_priv_data->sas_target->handle == handle) {
2809 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2810 MPT2SAS_INFO_FMT "SDEV_RUNNING: "
2811 "handle(0x%04x)\n", ioc->name, handle));
2812 sas_device_priv_data->block = 0;
2813 scsi_internal_device_unblock(sdev);
2814 }
2815 }
2816}
2817
2818/**
2819 * _scsih_block_io_all_device - set the device state to SDEV_BLOCK
2820 * @ioc: per adapter object
2821 * @handle: device handle
2822 *
2823 * During device pull we need to appropiately set the sdev state.
2824 */
2825static void
2826_scsih_block_io_all_device(struct MPT2SAS_ADAPTER *ioc)
2827{
2828 struct MPT2SAS_DEVICE *sas_device_priv_data;
2829 struct scsi_device *sdev;
2830
2831 shost_for_each_device(sdev, ioc->shost) {
2832 sas_device_priv_data = sdev->hostdata;
2833 if (!sas_device_priv_data)
2834 continue;
2835 if (sas_device_priv_data->block)
2836 continue;
2837 sas_device_priv_data->block = 1;
2838 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev, "device_blocked, "
2839 "handle(0x%04x)\n",
2840 sas_device_priv_data->sas_target->handle));
2841 scsi_internal_device_block(sdev);
2842 }
2843}
2844
2845
2846/**
2847 * _scsih_block_io_device - set the device state to SDEV_BLOCK
2848 * @ioc: per adapter object
2849 * @handle: device handle
2850 *
2851 * During device pull we need to appropiately set the sdev state.
2852 */
2853static void
2854_scsih_block_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2855{
2856 struct MPT2SAS_DEVICE *sas_device_priv_data;
2857 struct scsi_device *sdev;
2858
2859 shost_for_each_device(sdev, ioc->shost) {
2860 sas_device_priv_data = sdev->hostdata;
2861 if (!sas_device_priv_data)
2862 continue;
2863 if (sas_device_priv_data->block)
2864 continue;
2865 if (sas_device_priv_data->sas_target->handle == handle) {
2866 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2867 MPT2SAS_INFO_FMT "SDEV_BLOCK: "
2868 "handle(0x%04x)\n", ioc->name, handle));
2869 sas_device_priv_data->block = 1;
2870 scsi_internal_device_block(sdev);
2871 }
2872 }
2873}
2874
2875/**
2876 * _scsih_block_io_to_children_attached_to_ex
2877 * @ioc: per adapter object
2878 * @sas_expander: the sas_device object
2879 *
2880 * This routine set sdev state to SDEV_BLOCK for all devices
2881 * attached to this expander. This function called when expander is
2882 * pulled.
2883 */
2884static void
2885_scsih_block_io_to_children_attached_to_ex(struct MPT2SAS_ADAPTER *ioc,
2886 struct _sas_node *sas_expander)
2887{
2888 struct _sas_port *mpt2sas_port;
2889 struct _sas_device *sas_device;
2890 struct _sas_node *expander_sibling;
2891 unsigned long flags;
2892
2893 if (!sas_expander)
2894 return;
2895
2896 list_for_each_entry(mpt2sas_port,
2897 &sas_expander->sas_port_list, port_list) {
2898 if (mpt2sas_port->remote_identify.device_type ==
2899 SAS_END_DEVICE) {
2900 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2901 sas_device =
2902 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
2903 mpt2sas_port->remote_identify.sas_address);
2904 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2905 if (!sas_device)
2906 continue;
2907 _scsih_block_io_device(ioc, sas_device->handle);
2908 }
2909 }
2910
2911 list_for_each_entry(mpt2sas_port,
2912 &sas_expander->sas_port_list, port_list) {
2913
2914 if (mpt2sas_port->remote_identify.device_type ==
2915 SAS_EDGE_EXPANDER_DEVICE ||
2916 mpt2sas_port->remote_identify.device_type ==
2917 SAS_FANOUT_EXPANDER_DEVICE) {
2918
2919 spin_lock_irqsave(&ioc->sas_node_lock, flags);
2920 expander_sibling =
2921 mpt2sas_scsih_expander_find_by_sas_address(
2922 ioc, mpt2sas_port->remote_identify.sas_address);
2923 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
2924 _scsih_block_io_to_children_attached_to_ex(ioc,
2925 expander_sibling);
2926 }
2927 }
2928}
2929
2930/**
2931 * _scsih_block_io_to_children_attached_directly
2932 * @ioc: per adapter object
2933 * @event_data: topology change event data
2934 *
2935 * This routine set sdev state to SDEV_BLOCK for all devices
2936 * direct attached during device pull.
2937 */
2938static void
2939_scsih_block_io_to_children_attached_directly(struct MPT2SAS_ADAPTER *ioc,
2940 Mpi2EventDataSasTopologyChangeList_t *event_data)
2941{
2942 int i;
2943 u16 handle;
2944 u16 reason_code;
2945 u8 phy_number;
2946
2947 for (i = 0; i < event_data->NumEntries; i++) {
2948 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
2949 if (!handle)
2950 continue;
2951 phy_number = event_data->StartPhyNum + i;
2952 reason_code = event_data->PHY[i].PhyStatus &
2953 MPI2_EVENT_SAS_TOPO_RC_MASK;
2954 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING)
2955 _scsih_block_io_device(ioc, handle);
2956 }
2957}
2958
2959/**
2960 * _scsih_tm_tr_send - send task management request
2961 * @ioc: per adapter object
2962 * @handle: device handle
2963 * Context: interrupt time.
2964 *
2965 * This code is to initiate the device removal handshake protocol
2966 * with controller firmware. This function will issue target reset
2967 * using high priority request queue. It will send a sas iounit
2968 * control request (MPI2_SAS_OP_REMOVE_DEVICE) from this completion.
2969 *
2970 * This is designed to send muliple task management request at the same
2971 * time to the fifo. If the fifo is full, we will append the request,
2972 * and process it in a future completion.
2973 */
2974static void
2975_scsih_tm_tr_send(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2976{
2977 Mpi2SCSITaskManagementRequest_t *mpi_request;
2978 u16 smid;
2979 struct _sas_device *sas_device;
2980 struct MPT2SAS_TARGET *sas_target_priv_data;
2981 unsigned long flags;
2982 struct _tr_list *delayed_tr;
2983
2984 if (ioc->shost_recovery || ioc->remove_host ||
2985 ioc->pci_error_recovery) {
2986 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
2987 "progress!\n", __func__, ioc->name));
2988 return;
2989 }
2990
2991 /* if PD, then return */
2992 if (test_bit(handle, ioc->pd_handles))
2993 return;
2994
2995 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2996 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
2997 if (sas_device && sas_device->starget &&
2998 sas_device->starget->hostdata) {
2999 sas_target_priv_data = sas_device->starget->hostdata;
3000 sas_target_priv_data->deleted = 1;
3001 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3002 "setting delete flag: handle(0x%04x), "
3003 "sas_addr(0x%016llx)\n", ioc->name, handle,
3004 (unsigned long long) sas_device->sas_address));
3005 }
3006 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3007
3008 smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_tr_cb_idx);
3009 if (!smid) {
3010 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
3011 if (!delayed_tr)
3012 return;
3013 INIT_LIST_HEAD(&delayed_tr->list);
3014 delayed_tr->handle = handle;
3015 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
3016 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3017 "DELAYED:tr:handle(0x%04x), (open)\n",
3018 ioc->name, handle));
3019 return;
3020 }
3021
3022 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "tr_send:handle(0x%04x), "
3023 "(open), smid(%d), cb(%d)\n", ioc->name, handle, smid,
3024 ioc->tm_tr_cb_idx));
3025 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3026 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
3027 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
3028 mpi_request->DevHandle = cpu_to_le16(handle);
3029 mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
3030 mpt2sas_base_put_smid_hi_priority(ioc, smid);
3031}
3032
3033
3034
3035/**
3036 * _scsih_sas_control_complete - completion routine
3037 * @ioc: per adapter object
3038 * @smid: system request message index
3039 * @msix_index: MSIX table index supplied by the OS
3040 * @reply: reply message frame(lower 32bit addr)
3041 * Context: interrupt time.
3042 *
3043 * This is the sas iounit control completion routine.
3044 * This code is part of the code to initiate the device removal
3045 * handshake protocol with controller firmware.
3046 *
3047 * Return 1 meaning mf should be freed from _base_interrupt
3048 * 0 means the mf is freed from this function.
3049 */
3050static u8
3051_scsih_sas_control_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid,
3052 u8 msix_index, u32 reply)
3053{
3054#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3055 Mpi2SasIoUnitControlReply_t *mpi_reply =
3056 mpt2sas_base_get_reply_virt_addr(ioc, reply);
3057#endif
3058 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3059 "sc_complete:handle(0x%04x), (open) "
3060 "smid(%d), ioc_status(0x%04x), loginfo(0x%08x)\n",
3061 ioc->name, le16_to_cpu(mpi_reply->DevHandle), smid,
3062 le16_to_cpu(mpi_reply->IOCStatus),
3063 le32_to_cpu(mpi_reply->IOCLogInfo)));
3064 return 1;
3065}
3066
3067/**
3068 * _scsih_tm_tr_volume_send - send target reset request for volumes
3069 * @ioc: per adapter object
3070 * @handle: device handle
3071 * Context: interrupt time.
3072 *
3073 * This is designed to send muliple task management request at the same
3074 * time to the fifo. If the fifo is full, we will append the request,
3075 * and process it in a future completion.
3076 */
3077static void
3078_scsih_tm_tr_volume_send(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3079{
3080 Mpi2SCSITaskManagementRequest_t *mpi_request;
3081 u16 smid;
3082 struct _tr_list *delayed_tr;
3083
3084 if (ioc->shost_recovery || ioc->remove_host ||
3085 ioc->pci_error_recovery) {
3086 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
3087 "progress!\n", __func__, ioc->name));
3088 return;
3089 }
3090
3091 smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_tr_volume_cb_idx);
3092 if (!smid) {
3093 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
3094 if (!delayed_tr)
3095 return;
3096 INIT_LIST_HEAD(&delayed_tr->list);
3097 delayed_tr->handle = handle;
3098 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_volume_list);
3099 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3100 "DELAYED:tr:handle(0x%04x), (open)\n",
3101 ioc->name, handle));
3102 return;
3103 }
3104
3105 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "tr_send:handle(0x%04x), "
3106 "(open), smid(%d), cb(%d)\n", ioc->name, handle, smid,
3107 ioc->tm_tr_volume_cb_idx));
3108 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3109 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
3110 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
3111 mpi_request->DevHandle = cpu_to_le16(handle);
3112 mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
3113 mpt2sas_base_put_smid_hi_priority(ioc, smid);
3114}
3115
3116/**
3117 * _scsih_tm_volume_tr_complete - target reset completion
3118 * @ioc: per adapter object
3119 * @smid: system request message index
3120 * @msix_index: MSIX table index supplied by the OS
3121 * @reply: reply message frame(lower 32bit addr)
3122 * Context: interrupt time.
3123 *
3124 * Return 1 meaning mf should be freed from _base_interrupt
3125 * 0 means the mf is freed from this function.
3126 */
3127static u8
3128_scsih_tm_volume_tr_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid,
3129 u8 msix_index, u32 reply)
3130{
3131 u16 handle;
3132 Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
3133 Mpi2SCSITaskManagementReply_t *mpi_reply =
3134 mpt2sas_base_get_reply_virt_addr(ioc, reply);
3135
3136 if (ioc->shost_recovery || ioc->remove_host ||
3137 ioc->pci_error_recovery) {
3138 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
3139 "progress!\n", __func__, ioc->name));
3140 return 1;
3141 }
3142
3143 mpi_request_tm = mpt2sas_base_get_msg_frame(ioc, smid);
3144 handle = le16_to_cpu(mpi_request_tm->DevHandle);
3145 if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
3146 dewtprintk(ioc, printk("spurious interrupt: "
3147 "handle(0x%04x:0x%04x), smid(%d)!!!\n", handle,
3148 le16_to_cpu(mpi_reply->DevHandle), smid));
3149 return 0;
3150 }
3151
3152 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3153 "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
3154 "loginfo(0x%08x), completed(%d)\n", ioc->name,
3155 handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
3156 le32_to_cpu(mpi_reply->IOCLogInfo),
3157 le32_to_cpu(mpi_reply->TerminationCount)));
3158
3159 return _scsih_check_for_pending_tm(ioc, smid);
3160}
3161
3162/**
3163 * _scsih_tm_tr_complete -
3164 * @ioc: per adapter object
3165 * @smid: system request message index
3166 * @msix_index: MSIX table index supplied by the OS
3167 * @reply: reply message frame(lower 32bit addr)
3168 * Context: interrupt time.
3169 *
3170 * This is the target reset completion routine.
3171 * This code is part of the code to initiate the device removal
3172 * handshake protocol with controller firmware.
3173 * It will send a sas iounit control request (MPI2_SAS_OP_REMOVE_DEVICE)
3174 *
3175 * Return 1 meaning mf should be freed from _base_interrupt
3176 * 0 means the mf is freed from this function.
3177 */
3178static u8
3179_scsih_tm_tr_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
3180 u32 reply)
3181{
3182 u16 handle;
3183 Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
3184 Mpi2SCSITaskManagementReply_t *mpi_reply =
3185 mpt2sas_base_get_reply_virt_addr(ioc, reply);
3186 Mpi2SasIoUnitControlRequest_t *mpi_request;
3187 u16 smid_sas_ctrl;
3188
3189 if (ioc->shost_recovery || ioc->remove_host ||
3190 ioc->pci_error_recovery) {
3191 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
3192 "progress!\n", __func__, ioc->name));
3193 return 1;
3194 }
3195
3196 mpi_request_tm = mpt2sas_base_get_msg_frame(ioc, smid);
3197 handle = le16_to_cpu(mpi_request_tm->DevHandle);
3198 if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
3199 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "spurious interrupt: "
3200 "handle(0x%04x:0x%04x), smid(%d)!!!\n", ioc->name, handle,
3201 le16_to_cpu(mpi_reply->DevHandle), smid));
3202 return 0;
3203 }
3204
3205 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3206 "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
3207 "loginfo(0x%08x), completed(%d)\n", ioc->name,
3208 handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
3209 le32_to_cpu(mpi_reply->IOCLogInfo),
3210 le32_to_cpu(mpi_reply->TerminationCount)));
3211
3212 smid_sas_ctrl = mpt2sas_base_get_smid(ioc, ioc->tm_sas_control_cb_idx);
3213 if (!smid_sas_ctrl) {
3214 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
3215 ioc->name, __func__);
3216 return 1;
3217 }
3218
3219 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sc_send:handle(0x%04x), "
3220 "(open), smid(%d), cb(%d)\n", ioc->name, handle, smid_sas_ctrl,
3221 ioc->tm_sas_control_cb_idx));
3222 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid_sas_ctrl);
3223 memset(mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
3224 mpi_request->Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
3225 mpi_request->Operation = MPI2_SAS_OP_REMOVE_DEVICE;
3226 mpi_request->DevHandle = mpi_request_tm->DevHandle;
3227 mpt2sas_base_put_smid_default(ioc, smid_sas_ctrl);
3228
3229 return _scsih_check_for_pending_tm(ioc, smid);
3230}
3231
3232/**
3233 * _scsih_check_for_pending_tm - check for pending task management
3234 * @ioc: per adapter object
3235 * @smid: system request message index
3236 *
3237 * This will check delayed target reset list, and feed the
3238 * next reqeust.
3239 *
3240 * Return 1 meaning mf should be freed from _base_interrupt
3241 * 0 means the mf is freed from this function.
3242 */
3243static u8
3244_scsih_check_for_pending_tm(struct MPT2SAS_ADAPTER *ioc, u16 smid)
3245{
3246 struct _tr_list *delayed_tr;
3247
3248 if (!list_empty(&ioc->delayed_tr_volume_list)) {
3249 delayed_tr = list_entry(ioc->delayed_tr_volume_list.next,
3250 struct _tr_list, list);
3251 mpt2sas_base_free_smid(ioc, smid);
3252 _scsih_tm_tr_volume_send(ioc, delayed_tr->handle);
3253 list_del(&delayed_tr->list);
3254 kfree(delayed_tr);
3255 return 0;
3256 }
3257
3258 if (!list_empty(&ioc->delayed_tr_list)) {
3259 delayed_tr = list_entry(ioc->delayed_tr_list.next,
3260 struct _tr_list, list);
3261 mpt2sas_base_free_smid(ioc, smid);
3262 _scsih_tm_tr_send(ioc, delayed_tr->handle);
3263 list_del(&delayed_tr->list);
3264 kfree(delayed_tr);
3265 return 0;
3266 }
3267
3268 return 1;
3269}
3270
3271/**
3272 * _scsih_check_topo_delete_events - sanity check on topo events
3273 * @ioc: per adapter object
3274 * @event_data: the event data payload
3275 *
3276 * This routine added to better handle cable breaker.
3277 *
3278 * This handles the case where driver receives multiple expander
3279 * add and delete events in a single shot. When there is a delete event
3280 * the routine will void any pending add events waiting in the event queue.
3281 *
3282 * Return nothing.
3283 */
3284static void
3285_scsih_check_topo_delete_events(struct MPT2SAS_ADAPTER *ioc,
3286 Mpi2EventDataSasTopologyChangeList_t *event_data)
3287{
3288 struct fw_event_work *fw_event;
3289 Mpi2EventDataSasTopologyChangeList_t *local_event_data;
3290 u16 expander_handle;
3291 struct _sas_node *sas_expander;
3292 unsigned long flags;
3293 int i, reason_code;
3294 u16 handle;
3295
3296 for (i = 0 ; i < event_data->NumEntries; i++) {
3297 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
3298 if (!handle)
3299 continue;
3300 reason_code = event_data->PHY[i].PhyStatus &
3301 MPI2_EVENT_SAS_TOPO_RC_MASK;
3302 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING)
3303 _scsih_tm_tr_send(ioc, handle);
3304 }
3305
3306 expander_handle = le16_to_cpu(event_data->ExpanderDevHandle);
3307 if (expander_handle < ioc->sas_hba.num_phys) {
3308 _scsih_block_io_to_children_attached_directly(ioc, event_data);
3309 return;
3310 }
3311
3312 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING
3313 || event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING) {
3314 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3315 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
3316 expander_handle);
3317 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3318 _scsih_block_io_to_children_attached_to_ex(ioc, sas_expander);
3319 } else if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_RESPONDING)
3320 _scsih_block_io_to_children_attached_directly(ioc, event_data);
3321
3322 if (event_data->ExpStatus != MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
3323 return;
3324
3325 /* mark ignore flag for pending events */
3326 spin_lock_irqsave(&ioc->fw_event_lock, flags);
3327 list_for_each_entry(fw_event, &ioc->fw_event_list, list) {
3328 if (fw_event->event != MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
3329 fw_event->ignore)
3330 continue;
3331 local_event_data = fw_event->event_data;
3332 if (local_event_data->ExpStatus ==
3333 MPI2_EVENT_SAS_TOPO_ES_ADDED ||
3334 local_event_data->ExpStatus ==
3335 MPI2_EVENT_SAS_TOPO_ES_RESPONDING) {
3336 if (le16_to_cpu(local_event_data->ExpanderDevHandle) ==
3337 expander_handle) {
3338 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3339 "setting ignoring flag\n", ioc->name));
3340 fw_event->ignore = 1;
3341 }
3342 }
3343 }
3344 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
3345}
3346
3347/**
3348 * _scsih_set_volume_delete_flag - setting volume delete flag
3349 * @ioc: per adapter object
3350 * @handle: device handle
3351 *
3352 * This
3353 * Return nothing.
3354 */
3355static void
3356_scsih_set_volume_delete_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3357{
3358 struct _raid_device *raid_device;
3359 struct MPT2SAS_TARGET *sas_target_priv_data;
3360 unsigned long flags;
3361
3362 spin_lock_irqsave(&ioc->raid_device_lock, flags);
3363 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
3364 if (raid_device && raid_device->starget &&
3365 raid_device->starget->hostdata) {
3366 sas_target_priv_data =
3367 raid_device->starget->hostdata;
3368 sas_target_priv_data->deleted = 1;
3369 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3370 "setting delete flag: handle(0x%04x), "
3371 "wwid(0x%016llx)\n", ioc->name, handle,
3372 (unsigned long long) raid_device->wwid));
3373 }
3374 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
3375}
3376
3377/**
3378 * _scsih_set_volume_handle_for_tr - set handle for target reset to volume
3379 * @handle: input handle
3380 * @a: handle for volume a
3381 * @b: handle for volume b
3382 *
3383 * IR firmware only supports two raid volumes. The purpose of this
3384 * routine is to set the volume handle in either a or b. When the given
3385 * input handle is non-zero, or when a and b have not been set before.
3386 */
3387static void
3388_scsih_set_volume_handle_for_tr(u16 handle, u16 *a, u16 *b)
3389{
3390 if (!handle || handle == *a || handle == *b)
3391 return;
3392 if (!*a)
3393 *a = handle;
3394 else if (!*b)
3395 *b = handle;
3396}
3397
3398/**
3399 * _scsih_check_ir_config_unhide_events - check for UNHIDE events
3400 * @ioc: per adapter object
3401 * @event_data: the event data payload
3402 * Context: interrupt time.
3403 *
3404 * This routine will send target reset to volume, followed by target
3405 * resets to the PDs. This is called when a PD has been removed, or
3406 * volume has been deleted or removed. When the target reset is sent
3407 * to volume, the PD target resets need to be queued to start upon
3408 * completion of the volume target reset.
3409 *
3410 * Return nothing.
3411 */
3412static void
3413_scsih_check_ir_config_unhide_events(struct MPT2SAS_ADAPTER *ioc,
3414 Mpi2EventDataIrConfigChangeList_t *event_data)
3415{
3416 Mpi2EventIrConfigElement_t *element;
3417 int i;
3418 u16 handle, volume_handle, a, b;
3419 struct _tr_list *delayed_tr;
3420
3421 a = 0;
3422 b = 0;
3423
3424 if (ioc->is_warpdrive)
3425 return;
3426
3427 /* Volume Resets for Deleted or Removed */
3428 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3429 for (i = 0; i < event_data->NumElements; i++, element++) {
3430 if (element->ReasonCode ==
3431 MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED ||
3432 element->ReasonCode ==
3433 MPI2_EVENT_IR_CHANGE_RC_REMOVED) {
3434 volume_handle = le16_to_cpu(element->VolDevHandle);
3435 _scsih_set_volume_delete_flag(ioc, volume_handle);
3436 _scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
3437 }
3438 }
3439
3440 /* Volume Resets for UNHIDE events */
3441 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3442 for (i = 0; i < event_data->NumElements; i++, element++) {
3443 if (le32_to_cpu(event_data->Flags) &
3444 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
3445 continue;
3446 if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_UNHIDE) {
3447 volume_handle = le16_to_cpu(element->VolDevHandle);
3448 _scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
3449 }
3450 }
3451
3452 if (a)
3453 _scsih_tm_tr_volume_send(ioc, a);
3454 if (b)
3455 _scsih_tm_tr_volume_send(ioc, b);
3456
3457 /* PD target resets */
3458 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3459 for (i = 0; i < event_data->NumElements; i++, element++) {
3460 if (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_UNHIDE)
3461 continue;
3462 handle = le16_to_cpu(element->PhysDiskDevHandle);
3463 volume_handle = le16_to_cpu(element->VolDevHandle);
3464 clear_bit(handle, ioc->pd_handles);
3465 if (!volume_handle)
3466 _scsih_tm_tr_send(ioc, handle);
3467 else if (volume_handle == a || volume_handle == b) {
3468 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
3469 BUG_ON(!delayed_tr);
3470 INIT_LIST_HEAD(&delayed_tr->list);
3471 delayed_tr->handle = handle;
3472 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
3473 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3474 "DELAYED:tr:handle(0x%04x), (open)\n", ioc->name,
3475 handle));
3476 } else
3477 _scsih_tm_tr_send(ioc, handle);
3478 }
3479}
3480
3481
3482/**
3483 * _scsih_check_volume_delete_events - set delete flag for volumes
3484 * @ioc: per adapter object
3485 * @event_data: the event data payload
3486 * Context: interrupt time.
3487 *
3488 * This will handle the case when the cable connected to entire volume is
3489 * pulled. We will take care of setting the deleted flag so normal IO will
3490 * not be sent.
3491 *
3492 * Return nothing.
3493 */
3494static void
3495_scsih_check_volume_delete_events(struct MPT2SAS_ADAPTER *ioc,
3496 Mpi2EventDataIrVolume_t *event_data)
3497{
3498 u32 state;
3499
3500 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
3501 return;
3502 state = le32_to_cpu(event_data->NewValue);
3503 if (state == MPI2_RAID_VOL_STATE_MISSING || state ==
3504 MPI2_RAID_VOL_STATE_FAILED)
3505 _scsih_set_volume_delete_flag(ioc,
3506 le16_to_cpu(event_data->VolDevHandle));
3507}
3508
3509/**
3510 * _scsih_flush_running_cmds - completing outstanding commands.
3511 * @ioc: per adapter object
3512 *
3513 * The flushing out of all pending scmd commands following host reset,
3514 * where all IO is dropped to the floor.
3515 *
3516 * Return nothing.
3517 */
3518static void
3519_scsih_flush_running_cmds(struct MPT2SAS_ADAPTER *ioc)
3520{
3521 struct scsi_cmnd *scmd;
3522 u16 smid;
3523 u16 count = 0;
3524
3525 for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
3526 scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
3527 if (!scmd)
3528 continue;
3529 count++;
3530 mpt2sas_base_free_smid(ioc, smid);
3531 scsi_dma_unmap(scmd);
3532 if (ioc->pci_error_recovery)
3533 scmd->result = DID_NO_CONNECT << 16;
3534 else
3535 scmd->result = DID_RESET << 16;
3536 scmd->scsi_done(scmd);
3537 }
3538 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "completing %d cmds\n",
3539 ioc->name, count));
3540}
3541
3542/**
3543 * _scsih_setup_eedp - setup MPI request for EEDP transfer
3544 * @scmd: pointer to scsi command object
3545 * @mpi_request: pointer to the SCSI_IO reqest message frame
3546 *
3547 * Supporting protection 1 and 3.
3548 *
3549 * Returns nothing
3550 */
3551static void
3552_scsih_setup_eedp(struct scsi_cmnd *scmd, Mpi2SCSIIORequest_t *mpi_request)
3553{
3554 u16 eedp_flags;
3555 unsigned char prot_op = scsi_get_prot_op(scmd);
3556 unsigned char prot_type = scsi_get_prot_type(scmd);
3557
3558 if (prot_type == SCSI_PROT_DIF_TYPE0 || prot_op == SCSI_PROT_NORMAL)
3559 return;
3560
3561 if (prot_op == SCSI_PROT_READ_STRIP)
3562 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP;
3563 else if (prot_op == SCSI_PROT_WRITE_INSERT)
3564 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_INSERT_OP;
3565 else
3566 return;
3567
3568 switch (prot_type) {
3569 case SCSI_PROT_DIF_TYPE1:
3570 case SCSI_PROT_DIF_TYPE2:
3571
3572 /*
3573 * enable ref/guard checking
3574 * auto increment ref tag
3575 */
3576 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
3577 MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
3578 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
3579 mpi_request->CDB.EEDP32.PrimaryReferenceTag =
3580 cpu_to_be32(scsi_get_lba(scmd));
3581 break;
3582
3583 case SCSI_PROT_DIF_TYPE3:
3584
3585 /*
3586 * enable guard checking
3587 */
3588 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
3589 break;
3590 }
3591 mpi_request->EEDPBlockSize = cpu_to_le32(scmd->device->sector_size);
3592 mpi_request->EEDPFlags = cpu_to_le16(eedp_flags);
3593}
3594
3595/**
3596 * _scsih_eedp_error_handling - return sense code for EEDP errors
3597 * @scmd: pointer to scsi command object
3598 * @ioc_status: ioc status
3599 *
3600 * Returns nothing
3601 */
3602static void
3603_scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status)
3604{
3605 u8 ascq;
3606 u8 sk;
3607 u8 host_byte;
3608
3609 switch (ioc_status) {
3610 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
3611 ascq = 0x01;
3612 break;
3613 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
3614 ascq = 0x02;
3615 break;
3616 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
3617 ascq = 0x03;
3618 break;
3619 default:
3620 ascq = 0x00;
3621 break;
3622 }
3623
3624 if (scmd->sc_data_direction == DMA_TO_DEVICE) {
3625 sk = ILLEGAL_REQUEST;
3626 host_byte = DID_ABORT;
3627 } else {
3628 sk = ABORTED_COMMAND;
3629 host_byte = DID_OK;
3630 }
3631
3632 scsi_build_sense_buffer(0, scmd->sense_buffer, sk, 0x10, ascq);
3633 scmd->result = DRIVER_SENSE << 24 | (host_byte << 16) |
3634 SAM_STAT_CHECK_CONDITION;
3635}
3636
3637/**
3638 * _scsih_scsi_direct_io_get - returns direct io flag
3639 * @ioc: per adapter object
3640 * @smid: system request message index
3641 *
3642 * Returns the smid stored scmd pointer.
3643 */
3644static inline u8
3645_scsih_scsi_direct_io_get(struct MPT2SAS_ADAPTER *ioc, u16 smid)
3646{
3647 return ioc->scsi_lookup[smid - 1].direct_io;
3648}
3649
3650/**
3651 * _scsih_scsi_direct_io_set - sets direct io flag
3652 * @ioc: per adapter object
3653 * @smid: system request message index
3654 * @direct_io: Zero or non-zero value to set in the direct_io flag
3655 *
3656 * Returns Nothing.
3657 */
3658static inline void
3659_scsih_scsi_direct_io_set(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 direct_io)
3660{
3661 ioc->scsi_lookup[smid - 1].direct_io = direct_io;
3662}
3663
3664
3665/**
3666 * _scsih_setup_direct_io - setup MPI request for WARPDRIVE Direct I/O
3667 * @ioc: per adapter object
3668 * @scmd: pointer to scsi command object
3669 * @raid_device: pointer to raid device data structure
3670 * @mpi_request: pointer to the SCSI_IO reqest message frame
3671 * @smid: system request message index
3672 *
3673 * Returns nothing
3674 */
3675static void
3676_scsih_setup_direct_io(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
3677 struct _raid_device *raid_device, Mpi2SCSIIORequest_t *mpi_request,
3678 u16 smid)
3679{
3680 u32 v_lba, p_lba, stripe_off, stripe_unit, column, io_size;
3681 u32 stripe_sz, stripe_exp;
3682 u8 num_pds, *cdb_ptr, *tmp_ptr, *lba_ptr1, *lba_ptr2;
3683 u8 cdb0 = scmd->cmnd[0];
3684
3685 /*
3686 * Try Direct I/O to RAID memeber disks
3687 */
3688 if (cdb0 == READ_16 || cdb0 == READ_10 ||
3689 cdb0 == WRITE_16 || cdb0 == WRITE_10) {
3690 cdb_ptr = mpi_request->CDB.CDB32;
3691
3692 if ((cdb0 < READ_16) || !(cdb_ptr[2] | cdb_ptr[3] | cdb_ptr[4]
3693 | cdb_ptr[5])) {
3694 io_size = scsi_bufflen(scmd) >> 9;
3695 /* get virtual lba */
3696 lba_ptr1 = lba_ptr2 = (cdb0 < READ_16) ? &cdb_ptr[2] :
3697 &cdb_ptr[6];
3698 tmp_ptr = (u8 *)&v_lba + 3;
3699 *tmp_ptr-- = *lba_ptr1++;
3700 *tmp_ptr-- = *lba_ptr1++;
3701 *tmp_ptr-- = *lba_ptr1++;
3702 *tmp_ptr = *lba_ptr1;
3703
3704 if (((u64)v_lba + (u64)io_size - 1) <=
3705 (u32)raid_device->max_lba) {
3706 stripe_sz = raid_device->stripe_sz;
3707 stripe_exp = raid_device->stripe_exponent;
3708 stripe_off = v_lba & (stripe_sz - 1);
3709
3710 /* Check whether IO falls within a stripe */
3711 if ((stripe_off + io_size) <= stripe_sz) {
3712 num_pds = raid_device->num_pds;
3713 p_lba = v_lba >> stripe_exp;
3714 stripe_unit = p_lba / num_pds;
3715 column = p_lba % num_pds;
3716 p_lba = (stripe_unit << stripe_exp) +
3717 stripe_off;
3718 mpi_request->DevHandle =
3719 cpu_to_le16(raid_device->
3720 pd_handle[column]);
3721 tmp_ptr = (u8 *)&p_lba + 3;
3722 *lba_ptr2++ = *tmp_ptr--;
3723 *lba_ptr2++ = *tmp_ptr--;
3724 *lba_ptr2++ = *tmp_ptr--;
3725 *lba_ptr2 = *tmp_ptr;
3726 /*
3727 * WD: To indicate this I/O is directI/O
3728 */
3729 _scsih_scsi_direct_io_set(ioc, smid, 1);
3730 }
3731 }
3732 }
3733 }
3734}
3735
3736/**
3737 * _scsih_qcmd - main scsi request entry point
3738 * @scmd: pointer to scsi command object
3739 * @done: function pointer to be invoked on completion
3740 *
3741 * The callback index is set inside `ioc->scsi_io_cb_idx`.
3742 *
3743 * Returns 0 on success. If there's a failure, return either:
3744 * SCSI_MLQUEUE_DEVICE_BUSY if the device queue is full, or
3745 * SCSI_MLQUEUE_HOST_BUSY if the entire host queue is full
3746 */
3747static int
3748_scsih_qcmd_lck(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
3749{
3750 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
3751 struct MPT2SAS_DEVICE *sas_device_priv_data;
3752 struct MPT2SAS_TARGET *sas_target_priv_data;
3753 struct _raid_device *raid_device;
3754 Mpi2SCSIIORequest_t *mpi_request;
3755 u32 mpi_control;
3756 u16 smid;
3757
3758 scmd->scsi_done = done;
3759 sas_device_priv_data = scmd->device->hostdata;
3760 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
3761 scmd->result = DID_NO_CONNECT << 16;
3762 scmd->scsi_done(scmd);
3763 return 0;
3764 }
3765
3766 if (ioc->pci_error_recovery || ioc->remove_host) {
3767 scmd->result = DID_NO_CONNECT << 16;
3768 scmd->scsi_done(scmd);
3769 return 0;
3770 }
3771
3772 sas_target_priv_data = sas_device_priv_data->sas_target;
3773 /* invalid device handle */
3774 if (sas_target_priv_data->handle == MPT2SAS_INVALID_DEVICE_HANDLE) {
3775 scmd->result = DID_NO_CONNECT << 16;
3776 scmd->scsi_done(scmd);
3777 return 0;
3778 }
3779
3780 /* host recovery or link resets sent via IOCTLs */
3781 if (ioc->shost_recovery || ioc->ioc_link_reset_in_progress)
3782 return SCSI_MLQUEUE_HOST_BUSY;
3783 /* device busy with task management */
3784 else if (sas_device_priv_data->block || sas_target_priv_data->tm_busy)
3785 return SCSI_MLQUEUE_DEVICE_BUSY;
3786 /* device has been deleted */
3787 else if (sas_target_priv_data->deleted) {
3788 scmd->result = DID_NO_CONNECT << 16;
3789 scmd->scsi_done(scmd);
3790 return 0;
3791 }
3792
3793 if (scmd->sc_data_direction == DMA_FROM_DEVICE)
3794 mpi_control = MPI2_SCSIIO_CONTROL_READ;
3795 else if (scmd->sc_data_direction == DMA_TO_DEVICE)
3796 mpi_control = MPI2_SCSIIO_CONTROL_WRITE;
3797 else
3798 mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER;
3799
3800 /* set tags */
3801 if (!(sas_device_priv_data->flags & MPT_DEVICE_FLAGS_INIT)) {
3802 if (scmd->device->tagged_supported) {
3803 if (scmd->device->ordered_tags)
3804 mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ;
3805 else
3806 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
3807 } else
3808/* MPI Revision I (UNIT = 0xA) - removed MPI2_SCSIIO_CONTROL_UNTAGGED */
3809/* mpi_control |= MPI2_SCSIIO_CONTROL_UNTAGGED;
3810 */
3811 mpi_control |= (0x500);
3812
3813 } else
3814 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
3815 /* Make sure Device is not raid volume.
3816 * We do not expose raid functionality to upper layer for warpdrive.
3817 */
3818 if (!ioc->is_warpdrive && !_scsih_is_raid(&scmd->device->sdev_gendev) &&
3819 sas_is_tlr_enabled(scmd->device) && scmd->cmd_len != 32)
3820 mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
3821
3822 smid = mpt2sas_base_get_smid_scsiio(ioc, ioc->scsi_io_cb_idx, scmd);
3823 if (!smid) {
3824 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
3825 ioc->name, __func__);
3826 goto out;
3827 }
3828 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3829 memset(mpi_request, 0, sizeof(Mpi2SCSIIORequest_t));
3830 _scsih_setup_eedp(scmd, mpi_request);
3831 if (scmd->cmd_len == 32)
3832 mpi_control |= 4 << MPI2_SCSIIO_CONTROL_ADDCDBLEN_SHIFT;
3833 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
3834 if (sas_device_priv_data->sas_target->flags &
3835 MPT_TARGET_FLAGS_RAID_COMPONENT)
3836 mpi_request->Function = MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
3837 else
3838 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
3839 mpi_request->DevHandle =
3840 cpu_to_le16(sas_device_priv_data->sas_target->handle);
3841 mpi_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
3842 mpi_request->Control = cpu_to_le32(mpi_control);
3843 mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len);
3844 mpi_request->MsgFlags = MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR;
3845 mpi_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
3846 mpi_request->SenseBufferLowAddress =
3847 mpt2sas_base_get_sense_buffer_dma(ioc, smid);
3848 mpi_request->SGLOffset0 = offsetof(Mpi2SCSIIORequest_t, SGL) / 4;
3849 mpi_request->SGLFlags = cpu_to_le16(MPI2_SCSIIO_SGLFLAGS_TYPE_MPI +
3850 MPI2_SCSIIO_SGLFLAGS_SYSTEM_ADDR);
3851 mpi_request->VF_ID = 0; /* TODO */
3852 mpi_request->VP_ID = 0;
3853 int_to_scsilun(sas_device_priv_data->lun, (struct scsi_lun *)
3854 mpi_request->LUN);
3855 memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
3856
3857 if (!mpi_request->DataLength) {
3858 mpt2sas_base_build_zero_len_sge(ioc, &mpi_request->SGL);
3859 } else {
3860 if (_scsih_build_scatter_gather(ioc, scmd, smid)) {
3861 mpt2sas_base_free_smid(ioc, smid);
3862 goto out;
3863 }
3864 }
3865
3866 raid_device = sas_target_priv_data->raid_device;
3867 if (raid_device && raid_device->direct_io_enabled)
3868 _scsih_setup_direct_io(ioc, scmd, raid_device, mpi_request,
3869 smid);
3870
3871 if (likely(mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST))
3872 mpt2sas_base_put_smid_scsi_io(ioc, smid,
3873 le16_to_cpu(mpi_request->DevHandle));
3874 else
3875 mpt2sas_base_put_smid_default(ioc, smid);
3876 return 0;
3877
3878 out:
3879 return SCSI_MLQUEUE_HOST_BUSY;
3880}
3881
3882static DEF_SCSI_QCMD(_scsih_qcmd)
3883
3884/**
3885 * _scsih_normalize_sense - normalize descriptor and fixed format sense data
3886 * @sense_buffer: sense data returned by target
3887 * @data: normalized skey/asc/ascq
3888 *
3889 * Return nothing.
3890 */
3891static void
3892_scsih_normalize_sense(char *sense_buffer, struct sense_info *data)
3893{
3894 if ((sense_buffer[0] & 0x7F) >= 0x72) {
3895 /* descriptor format */
3896 data->skey = sense_buffer[1] & 0x0F;
3897 data->asc = sense_buffer[2];
3898 data->ascq = sense_buffer[3];
3899 } else {
3900 /* fixed format */
3901 data->skey = sense_buffer[2] & 0x0F;
3902 data->asc = sense_buffer[12];
3903 data->ascq = sense_buffer[13];
3904 }
3905}
3906
3907#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3908/**
3909 * _scsih_scsi_ioc_info - translated non-successful SCSI_IO request
3910 * @ioc: per adapter object
3911 * @scmd: pointer to scsi command object
3912 * @mpi_reply: reply mf payload returned from firmware
3913 *
3914 * scsi_status - SCSI Status code returned from target device
3915 * scsi_state - state info associated with SCSI_IO determined by ioc
3916 * ioc_status - ioc supplied status info
3917 *
3918 * Return nothing.
3919 */
3920static void
3921_scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
3922 Mpi2SCSIIOReply_t *mpi_reply, u16 smid)
3923{
3924 u32 response_info;
3925 u8 *response_bytes;
3926 u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
3927 MPI2_IOCSTATUS_MASK;
3928 u8 scsi_state = mpi_reply->SCSIState;
3929 u8 scsi_status = mpi_reply->SCSIStatus;
3930 char *desc_ioc_state = NULL;
3931 char *desc_scsi_status = NULL;
3932 char *desc_scsi_state = ioc->tmp_string;
3933 u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
3934 struct _sas_device *sas_device = NULL;
3935 unsigned long flags;
3936 struct scsi_target *starget = scmd->device->sdev_target;
3937 struct MPT2SAS_TARGET *priv_target = starget->hostdata;
3938 char *device_str = NULL;
3939
3940 if (!priv_target)
3941 return;
3942
3943 if (ioc->hide_ir_msg)
3944 device_str = "WarpDrive";
3945 else
3946 device_str = "volume";
3947
3948 if (log_info == 0x31170000)
3949 return;
3950
3951 switch (ioc_status) {
3952 case MPI2_IOCSTATUS_SUCCESS:
3953 desc_ioc_state = "success";
3954 break;
3955 case MPI2_IOCSTATUS_INVALID_FUNCTION:
3956 desc_ioc_state = "invalid function";
3957 break;
3958 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
3959 desc_ioc_state = "scsi recovered error";
3960 break;
3961 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
3962 desc_ioc_state = "scsi invalid dev handle";
3963 break;
3964 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
3965 desc_ioc_state = "scsi device not there";
3966 break;
3967 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
3968 desc_ioc_state = "scsi data overrun";
3969 break;
3970 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
3971 desc_ioc_state = "scsi data underrun";
3972 break;
3973 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
3974 desc_ioc_state = "scsi io data error";
3975 break;
3976 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
3977 desc_ioc_state = "scsi protocol error";
3978 break;
3979 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
3980 desc_ioc_state = "scsi task terminated";
3981 break;
3982 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
3983 desc_ioc_state = "scsi residual mismatch";
3984 break;
3985 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
3986 desc_ioc_state = "scsi task mgmt failed";
3987 break;
3988 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
3989 desc_ioc_state = "scsi ioc terminated";
3990 break;
3991 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
3992 desc_ioc_state = "scsi ext terminated";
3993 break;
3994 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
3995 desc_ioc_state = "eedp guard error";
3996 break;
3997 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
3998 desc_ioc_state = "eedp ref tag error";
3999 break;
4000 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
4001 desc_ioc_state = "eedp app tag error";
4002 break;
4003 default:
4004 desc_ioc_state = "unknown";
4005 break;
4006 }
4007
4008 switch (scsi_status) {
4009 case MPI2_SCSI_STATUS_GOOD:
4010 desc_scsi_status = "good";
4011 break;
4012 case MPI2_SCSI_STATUS_CHECK_CONDITION:
4013 desc_scsi_status = "check condition";
4014 break;
4015 case MPI2_SCSI_STATUS_CONDITION_MET:
4016 desc_scsi_status = "condition met";
4017 break;
4018 case MPI2_SCSI_STATUS_BUSY:
4019 desc_scsi_status = "busy";
4020 break;
4021 case MPI2_SCSI_STATUS_INTERMEDIATE:
4022 desc_scsi_status = "intermediate";
4023 break;
4024 case MPI2_SCSI_STATUS_INTERMEDIATE_CONDMET:
4025 desc_scsi_status = "intermediate condmet";
4026 break;
4027 case MPI2_SCSI_STATUS_RESERVATION_CONFLICT:
4028 desc_scsi_status = "reservation conflict";
4029 break;
4030 case MPI2_SCSI_STATUS_COMMAND_TERMINATED:
4031 desc_scsi_status = "command terminated";
4032 break;
4033 case MPI2_SCSI_STATUS_TASK_SET_FULL:
4034 desc_scsi_status = "task set full";
4035 break;
4036 case MPI2_SCSI_STATUS_ACA_ACTIVE:
4037 desc_scsi_status = "aca active";
4038 break;
4039 case MPI2_SCSI_STATUS_TASK_ABORTED:
4040 desc_scsi_status = "task aborted";
4041 break;
4042 default:
4043 desc_scsi_status = "unknown";
4044 break;
4045 }
4046
4047 desc_scsi_state[0] = '\0';
4048 if (!scsi_state)
4049 desc_scsi_state = " ";
4050 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
4051 strcat(desc_scsi_state, "response info ");
4052 if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
4053 strcat(desc_scsi_state, "state terminated ");
4054 if (scsi_state & MPI2_SCSI_STATE_NO_SCSI_STATUS)
4055 strcat(desc_scsi_state, "no status ");
4056 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_FAILED)
4057 strcat(desc_scsi_state, "autosense failed ");
4058 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID)
4059 strcat(desc_scsi_state, "autosense valid ");
4060
4061 scsi_print_command(scmd);
4062
4063 if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
4064 printk(MPT2SAS_WARN_FMT "\t%s wwid(0x%016llx)\n", ioc->name,
4065 device_str, (unsigned long long)priv_target->sas_address);
4066 } else {
4067 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4068 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
4069 priv_target->sas_address);
4070 if (sas_device) {
4071 printk(MPT2SAS_WARN_FMT "\tsas_address(0x%016llx), "
4072 "phy(%d)\n", ioc->name, sas_device->sas_address,
4073 sas_device->phy);
4074 printk(MPT2SAS_WARN_FMT
4075 "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
4076 ioc->name, sas_device->enclosure_logical_id,
4077 sas_device->slot);
4078 }
4079 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4080 }
4081
4082 printk(MPT2SAS_WARN_FMT "\thandle(0x%04x), ioc_status(%s)(0x%04x), "
4083 "smid(%d)\n", ioc->name, le16_to_cpu(mpi_reply->DevHandle),
4084 desc_ioc_state, ioc_status, smid);
4085 printk(MPT2SAS_WARN_FMT "\trequest_len(%d), underflow(%d), "
4086 "resid(%d)\n", ioc->name, scsi_bufflen(scmd), scmd->underflow,
4087 scsi_get_resid(scmd));
4088 printk(MPT2SAS_WARN_FMT "\ttag(%d), transfer_count(%d), "
4089 "sc->result(0x%08x)\n", ioc->name, le16_to_cpu(mpi_reply->TaskTag),
4090 le32_to_cpu(mpi_reply->TransferCount), scmd->result);
4091 printk(MPT2SAS_WARN_FMT "\tscsi_status(%s)(0x%02x), "
4092 "scsi_state(%s)(0x%02x)\n", ioc->name, desc_scsi_status,
4093 scsi_status, desc_scsi_state, scsi_state);
4094
4095 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
4096 struct sense_info data;
4097 _scsih_normalize_sense(scmd->sense_buffer, &data);
4098 printk(MPT2SAS_WARN_FMT "\t[sense_key,asc,ascq]: "
4099 "[0x%02x,0x%02x,0x%02x], count(%d)\n", ioc->name, data.skey,
4100 data.asc, data.ascq, le32_to_cpu(mpi_reply->SenseCount));
4101 }
4102
4103 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
4104 response_info = le32_to_cpu(mpi_reply->ResponseInfo);
4105 response_bytes = (u8 *)&response_info;
4106 _scsih_response_code(ioc, response_bytes[0]);
4107 }
4108}
4109#endif
4110
4111/**
4112 * _scsih_turn_on_fault_led - illuminate Fault LED
4113 * @ioc: per adapter object
4114 * @handle: device handle
4115 * Context: process
4116 *
4117 * Return nothing.
4118 */
4119static void
4120_scsih_turn_on_fault_led(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4121{
4122 Mpi2SepReply_t mpi_reply;
4123 Mpi2SepRequest_t mpi_request;
4124
4125 memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t));
4126 mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
4127 mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS;
4128 mpi_request.SlotStatus =
4129 cpu_to_le32(MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
4130 mpi_request.DevHandle = cpu_to_le16(handle);
4131 mpi_request.Flags = MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS;
4132 if ((mpt2sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
4133 &mpi_request)) != 0) {
4134 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", ioc->name,
4135 __FILE__, __LINE__, __func__);
4136 return;
4137 }
4138
4139 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) {
4140 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "enclosure_processor: "
4141 "ioc_status (0x%04x), loginfo(0x%08x)\n", ioc->name,
4142 le16_to_cpu(mpi_reply.IOCStatus),
4143 le32_to_cpu(mpi_reply.IOCLogInfo)));
4144 return;
4145 }
4146}
4147
4148/**
4149 * _scsih_send_event_to_turn_on_fault_led - fire delayed event
4150 * @ioc: per adapter object
4151 * @handle: device handle
4152 * Context: interrupt.
4153 *
4154 * Return nothing.
4155 */
4156static void
4157_scsih_send_event_to_turn_on_fault_led(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4158{
4159 struct fw_event_work *fw_event;
4160
4161 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
4162 if (!fw_event)
4163 return;
4164 fw_event->event = MPT2SAS_TURN_ON_FAULT_LED;
4165 fw_event->device_handle = handle;
4166 fw_event->ioc = ioc;
4167 _scsih_fw_event_add(ioc, fw_event);
4168}
4169
4170/**
4171 * _scsih_smart_predicted_fault - process smart errors
4172 * @ioc: per adapter object
4173 * @handle: device handle
4174 * Context: interrupt.
4175 *
4176 * Return nothing.
4177 */
4178static void
4179_scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4180{
4181 struct scsi_target *starget;
4182 struct MPT2SAS_TARGET *sas_target_priv_data;
4183 Mpi2EventNotificationReply_t *event_reply;
4184 Mpi2EventDataSasDeviceStatusChange_t *event_data;
4185 struct _sas_device *sas_device;
4186 ssize_t sz;
4187 unsigned long flags;
4188
4189 /* only handle non-raid devices */
4190 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4191 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4192 if (!sas_device) {
4193 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4194 return;
4195 }
4196 starget = sas_device->starget;
4197 sas_target_priv_data = starget->hostdata;
4198
4199 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) ||
4200 ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) {
4201 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4202 return;
4203 }
4204 starget_printk(KERN_WARNING, starget, "predicted fault\n");
4205 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4206
4207 if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM)
4208 _scsih_send_event_to_turn_on_fault_led(ioc, handle);
4209
4210 /* insert into event log */
4211 sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
4212 sizeof(Mpi2EventDataSasDeviceStatusChange_t);
4213 event_reply = kzalloc(sz, GFP_KERNEL);
4214 if (!event_reply) {
4215 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4216 ioc->name, __FILE__, __LINE__, __func__);
4217 return;
4218 }
4219
4220 event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
4221 event_reply->Event =
4222 cpu_to_le16(MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
4223 event_reply->MsgLength = sz/4;
4224 event_reply->EventDataLength =
4225 cpu_to_le16(sizeof(Mpi2EventDataSasDeviceStatusChange_t)/4);
4226 event_data = (Mpi2EventDataSasDeviceStatusChange_t *)
4227 event_reply->EventData;
4228 event_data->ReasonCode = MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA;
4229 event_data->ASC = 0x5D;
4230 event_data->DevHandle = cpu_to_le16(handle);
4231 event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address);
4232 mpt2sas_ctl_add_to_event_log(ioc, event_reply);
4233 kfree(event_reply);
4234}
4235
4236/**
4237 * _scsih_io_done - scsi request callback
4238 * @ioc: per adapter object
4239 * @smid: system request message index
4240 * @msix_index: MSIX table index supplied by the OS
4241 * @reply: reply message frame(lower 32bit addr)
4242 *
4243 * Callback handler when using _scsih_qcmd.
4244 *
4245 * Return 1 meaning mf should be freed from _base_interrupt
4246 * 0 means the mf is freed from this function.
4247 */
4248static u8
4249_scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
4250{
4251 Mpi2SCSIIORequest_t *mpi_request;
4252 Mpi2SCSIIOReply_t *mpi_reply;
4253 struct scsi_cmnd *scmd;
4254 u16 ioc_status;
4255 u32 xfer_cnt;
4256 u8 scsi_state;
4257 u8 scsi_status;
4258 u32 log_info;
4259 struct MPT2SAS_DEVICE *sas_device_priv_data;
4260 u32 response_code = 0;
4261 unsigned long flags;
4262
4263 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
4264 scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
4265 if (scmd == NULL)
4266 return 1;
4267
4268 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
4269
4270 if (mpi_reply == NULL) {
4271 scmd->result = DID_OK << 16;
4272 goto out;
4273 }
4274
4275 sas_device_priv_data = scmd->device->hostdata;
4276 if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
4277 sas_device_priv_data->sas_target->deleted) {
4278 scmd->result = DID_NO_CONNECT << 16;
4279 goto out;
4280 }
4281 /*
4282 * WARPDRIVE: If direct_io is set then it is directIO,
4283 * the failed direct I/O should be redirected to volume
4284 */
4285 if (_scsih_scsi_direct_io_get(ioc, smid)) {
4286 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
4287 ioc->scsi_lookup[smid - 1].scmd = scmd;
4288 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
4289 _scsih_scsi_direct_io_set(ioc, smid, 0);
4290 memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
4291 mpi_request->DevHandle =
4292 cpu_to_le16(sas_device_priv_data->sas_target->handle);
4293 mpt2sas_base_put_smid_scsi_io(ioc, smid,
4294 sas_device_priv_data->sas_target->handle);
4295 return 0;
4296 }
4297
4298
4299 /* turning off TLR */
4300 scsi_state = mpi_reply->SCSIState;
4301 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
4302 response_code =
4303 le32_to_cpu(mpi_reply->ResponseInfo) & 0xFF;
4304 if (!sas_device_priv_data->tlr_snoop_check) {
4305 sas_device_priv_data->tlr_snoop_check++;
4306 /* Make sure Device is not raid volume.
4307 * We do not expose raid functionality to upper layer for warpdrive.
4308 */
4309 if (!ioc->is_warpdrive && !_scsih_is_raid(&scmd->device->sdev_gendev) &&
4310 sas_is_tlr_enabled(scmd->device) &&
4311 response_code == MPI2_SCSITASKMGMT_RSP_INVALID_FRAME) {
4312 sas_disable_tlr(scmd->device);
4313 sdev_printk(KERN_INFO, scmd->device, "TLR disabled\n");
4314 }
4315 }
4316
4317 xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
4318 scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
4319 ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
4320 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
4321 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
4322 else
4323 log_info = 0;
4324 ioc_status &= MPI2_IOCSTATUS_MASK;
4325 scsi_status = mpi_reply->SCSIStatus;
4326
4327 if (ioc_status == MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
4328 (scsi_status == MPI2_SCSI_STATUS_BUSY ||
4329 scsi_status == MPI2_SCSI_STATUS_RESERVATION_CONFLICT ||
4330 scsi_status == MPI2_SCSI_STATUS_TASK_SET_FULL)) {
4331 ioc_status = MPI2_IOCSTATUS_SUCCESS;
4332 }
4333
4334 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
4335 struct sense_info data;
4336 const void *sense_data = mpt2sas_base_get_sense_buffer(ioc,
4337 smid);
4338 u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
4339 le32_to_cpu(mpi_reply->SenseCount));
4340 memcpy(scmd->sense_buffer, sense_data, sz);
4341 _scsih_normalize_sense(scmd->sense_buffer, &data);
4342 /* failure prediction threshold exceeded */
4343 if (data.asc == 0x5D)
4344 _scsih_smart_predicted_fault(ioc,
4345 le16_to_cpu(mpi_reply->DevHandle));
4346 }
4347
4348 switch (ioc_status) {
4349 case MPI2_IOCSTATUS_BUSY:
4350 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
4351 scmd->result = SAM_STAT_BUSY;
4352 break;
4353
4354 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
4355 scmd->result = DID_NO_CONNECT << 16;
4356 break;
4357
4358 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
4359 if (sas_device_priv_data->block) {
4360 scmd->result = DID_TRANSPORT_DISRUPTED << 16;
4361 goto out;
4362 }
4363 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
4364 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
4365 scmd->result = DID_RESET << 16;
4366 break;
4367
4368 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
4369 if ((xfer_cnt == 0) || (scmd->underflow > xfer_cnt))
4370 scmd->result = DID_SOFT_ERROR << 16;
4371 else
4372 scmd->result = (DID_OK << 16) | scsi_status;
4373 break;
4374
4375 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
4376 scmd->result = (DID_OK << 16) | scsi_status;
4377
4378 if ((scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID))
4379 break;
4380
4381 if (xfer_cnt < scmd->underflow) {
4382 if (scsi_status == SAM_STAT_BUSY)
4383 scmd->result = SAM_STAT_BUSY;
4384 else
4385 scmd->result = DID_SOFT_ERROR << 16;
4386 } else if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
4387 MPI2_SCSI_STATE_NO_SCSI_STATUS))
4388 scmd->result = DID_SOFT_ERROR << 16;
4389 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
4390 scmd->result = DID_RESET << 16;
4391 else if (!xfer_cnt && scmd->cmnd[0] == REPORT_LUNS) {
4392 mpi_reply->SCSIState = MPI2_SCSI_STATE_AUTOSENSE_VALID;
4393 mpi_reply->SCSIStatus = SAM_STAT_CHECK_CONDITION;
4394 scmd->result = (DRIVER_SENSE << 24) |
4395 SAM_STAT_CHECK_CONDITION;
4396 scmd->sense_buffer[0] = 0x70;
4397 scmd->sense_buffer[2] = ILLEGAL_REQUEST;
4398 scmd->sense_buffer[12] = 0x20;
4399 scmd->sense_buffer[13] = 0;
4400 }
4401 break;
4402
4403 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
4404 scsi_set_resid(scmd, 0);
4405 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
4406 case MPI2_IOCSTATUS_SUCCESS:
4407 scmd->result = (DID_OK << 16) | scsi_status;
4408 if (response_code ==
4409 MPI2_SCSITASKMGMT_RSP_INVALID_FRAME ||
4410 (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
4411 MPI2_SCSI_STATE_NO_SCSI_STATUS)))
4412 scmd->result = DID_SOFT_ERROR << 16;
4413 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
4414 scmd->result = DID_RESET << 16;
4415 break;
4416
4417 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
4418 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
4419 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
4420 _scsih_eedp_error_handling(scmd, ioc_status);
4421 break;
4422 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
4423 case MPI2_IOCSTATUS_INVALID_FUNCTION:
4424 case MPI2_IOCSTATUS_INVALID_SGL:
4425 case MPI2_IOCSTATUS_INTERNAL_ERROR:
4426 case MPI2_IOCSTATUS_INVALID_FIELD:
4427 case MPI2_IOCSTATUS_INVALID_STATE:
4428 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
4429 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
4430 default:
4431 scmd->result = DID_SOFT_ERROR << 16;
4432 break;
4433
4434 }
4435
4436#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4437 if (scmd->result && (ioc->logging_level & MPT_DEBUG_REPLY))
4438 _scsih_scsi_ioc_info(ioc , scmd, mpi_reply, smid);
4439#endif
4440
4441 out:
4442 scsi_dma_unmap(scmd);
4443 scmd->scsi_done(scmd);
4444 return 1;
4445}
4446
4447/**
4448 * _scsih_sas_host_refresh - refreshing sas host object contents
4449 * @ioc: per adapter object
4450 * Context: user
4451 *
4452 * During port enable, fw will send topology events for every device. Its
4453 * possible that the handles may change from the previous setting, so this
4454 * code keeping handles updating if changed.
4455 *
4456 * Return nothing.
4457 */
4458static void
4459_scsih_sas_host_refresh(struct MPT2SAS_ADAPTER *ioc)
4460{
4461 u16 sz;
4462 u16 ioc_status;
4463 int i;
4464 Mpi2ConfigReply_t mpi_reply;
4465 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
4466 u16 attached_handle;
4467 u8 link_rate;
4468
4469 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT
4470 "updating handles for sas_host(0x%016llx)\n",
4471 ioc->name, (unsigned long long)ioc->sas_hba.sas_address));
4472
4473 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys
4474 * sizeof(Mpi2SasIOUnit0PhyData_t));
4475 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
4476 if (!sas_iounit_pg0) {
4477 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4478 ioc->name, __FILE__, __LINE__, __func__);
4479 return;
4480 }
4481
4482 if ((mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
4483 sas_iounit_pg0, sz)) != 0)
4484 goto out;
4485 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
4486 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
4487 goto out;
4488 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
4489 link_rate = sas_iounit_pg0->PhyData[i].NegotiatedLinkRate >> 4;
4490 if (i == 0)
4491 ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
4492 PhyData[0].ControllerDevHandle);
4493 ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
4494 attached_handle = le16_to_cpu(sas_iounit_pg0->PhyData[i].
4495 AttachedDevHandle);
4496 if (attached_handle && link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
4497 link_rate = MPI2_SAS_NEG_LINK_RATE_1_5;
4498 mpt2sas_transport_update_links(ioc, ioc->sas_hba.sas_address,
4499 attached_handle, i, link_rate);
4500 }
4501 out:
4502 kfree(sas_iounit_pg0);
4503}
4504
4505/**
4506 * _scsih_sas_host_add - create sas host object
4507 * @ioc: per adapter object
4508 *
4509 * Creating host side data object, stored in ioc->sas_hba
4510 *
4511 * Return nothing.
4512 */
4513static void
4514_scsih_sas_host_add(struct MPT2SAS_ADAPTER *ioc)
4515{
4516 int i;
4517 Mpi2ConfigReply_t mpi_reply;
4518 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
4519 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
4520 Mpi2SasPhyPage0_t phy_pg0;
4521 Mpi2SasDevicePage0_t sas_device_pg0;
4522 Mpi2SasEnclosurePage0_t enclosure_pg0;
4523 u16 ioc_status;
4524 u16 sz;
4525 u16 device_missing_delay;
4526
4527 mpt2sas_config_get_number_hba_phys(ioc, &ioc->sas_hba.num_phys);
4528 if (!ioc->sas_hba.num_phys) {
4529 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4530 ioc->name, __FILE__, __LINE__, __func__);
4531 return;
4532 }
4533
4534 /* sas_iounit page 0 */
4535 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys *
4536 sizeof(Mpi2SasIOUnit0PhyData_t));
4537 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
4538 if (!sas_iounit_pg0) {
4539 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4540 ioc->name, __FILE__, __LINE__, __func__);
4541 return;
4542 }
4543 if ((mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
4544 sas_iounit_pg0, sz))) {
4545 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4546 ioc->name, __FILE__, __LINE__, __func__);
4547 goto out;
4548 }
4549 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4550 MPI2_IOCSTATUS_MASK;
4551 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4552 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4553 ioc->name, __FILE__, __LINE__, __func__);
4554 goto out;
4555 }
4556
4557 /* sas_iounit page 1 */
4558 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
4559 sizeof(Mpi2SasIOUnit1PhyData_t));
4560 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
4561 if (!sas_iounit_pg1) {
4562 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4563 ioc->name, __FILE__, __LINE__, __func__);
4564 goto out;
4565 }
4566 if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
4567 sas_iounit_pg1, sz))) {
4568 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4569 ioc->name, __FILE__, __LINE__, __func__);
4570 goto out;
4571 }
4572 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4573 MPI2_IOCSTATUS_MASK;
4574 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4575 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4576 ioc->name, __FILE__, __LINE__, __func__);
4577 goto out;
4578 }
4579
4580 ioc->io_missing_delay =
4581 le16_to_cpu(sas_iounit_pg1->IODeviceMissingDelay);
4582 device_missing_delay =
4583 le16_to_cpu(sas_iounit_pg1->ReportDeviceMissingDelay);
4584 if (device_missing_delay & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
4585 ioc->device_missing_delay = (device_missing_delay &
4586 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
4587 else
4588 ioc->device_missing_delay = device_missing_delay &
4589 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
4590
4591 ioc->sas_hba.parent_dev = &ioc->shost->shost_gendev;
4592 ioc->sas_hba.phy = kcalloc(ioc->sas_hba.num_phys,
4593 sizeof(struct _sas_phy), GFP_KERNEL);
4594 if (!ioc->sas_hba.phy) {
4595 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4596 ioc->name, __FILE__, __LINE__, __func__);
4597 goto out;
4598 }
4599 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
4600 if ((mpt2sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
4601 i))) {
4602 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4603 ioc->name, __FILE__, __LINE__, __func__);
4604 goto out;
4605 }
4606 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4607 MPI2_IOCSTATUS_MASK;
4608 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4609 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4610 ioc->name, __FILE__, __LINE__, __func__);
4611 goto out;
4612 }
4613
4614 if (i == 0)
4615 ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
4616 PhyData[0].ControllerDevHandle);
4617 ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
4618 ioc->sas_hba.phy[i].phy_id = i;
4619 mpt2sas_transport_add_host_phy(ioc, &ioc->sas_hba.phy[i],
4620 phy_pg0, ioc->sas_hba.parent_dev);
4621 }
4622 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
4623 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.handle))) {
4624 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4625 ioc->name, __FILE__, __LINE__, __func__);
4626 goto out;
4627 }
4628 ioc->sas_hba.enclosure_handle =
4629 le16_to_cpu(sas_device_pg0.EnclosureHandle);
4630 ioc->sas_hba.sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4631 printk(MPT2SAS_INFO_FMT "host_add: handle(0x%04x), "
4632 "sas_addr(0x%016llx), phys(%d)\n", ioc->name, ioc->sas_hba.handle,
4633 (unsigned long long) ioc->sas_hba.sas_address,
4634 ioc->sas_hba.num_phys) ;
4635
4636 if (ioc->sas_hba.enclosure_handle) {
4637 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
4638 &enclosure_pg0,
4639 MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
4640 ioc->sas_hba.enclosure_handle))) {
4641 ioc->sas_hba.enclosure_logical_id =
4642 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
4643 }
4644 }
4645
4646 out:
4647 kfree(sas_iounit_pg1);
4648 kfree(sas_iounit_pg0);
4649}
4650
4651/**
4652 * _scsih_expander_add - creating expander object
4653 * @ioc: per adapter object
4654 * @handle: expander handle
4655 *
4656 * Creating expander object, stored in ioc->sas_expander_list.
4657 *
4658 * Return 0 for success, else error.
4659 */
4660static int
4661_scsih_expander_add(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4662{
4663 struct _sas_node *sas_expander;
4664 Mpi2ConfigReply_t mpi_reply;
4665 Mpi2ExpanderPage0_t expander_pg0;
4666 Mpi2ExpanderPage1_t expander_pg1;
4667 Mpi2SasEnclosurePage0_t enclosure_pg0;
4668 u32 ioc_status;
4669 u16 parent_handle;
4670 u64 sas_address, sas_address_parent = 0;
4671 int i;
4672 unsigned long flags;
4673 struct _sas_port *mpt2sas_port = NULL;
4674 int rc = 0;
4675
4676 if (!handle)
4677 return -1;
4678
4679 if (ioc->shost_recovery || ioc->pci_error_recovery)
4680 return -1;
4681
4682 if ((mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
4683 MPI2_SAS_EXPAND_PGAD_FORM_HNDL, handle))) {
4684 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4685 ioc->name, __FILE__, __LINE__, __func__);
4686 return -1;
4687 }
4688
4689 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4690 MPI2_IOCSTATUS_MASK;
4691 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4692 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4693 ioc->name, __FILE__, __LINE__, __func__);
4694 return -1;
4695 }
4696
4697 /* handle out of order topology events */
4698 parent_handle = le16_to_cpu(expander_pg0.ParentDevHandle);
4699 if (_scsih_get_sas_address(ioc, parent_handle, &sas_address_parent)
4700 != 0) {
4701 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4702 ioc->name, __FILE__, __LINE__, __func__);
4703 return -1;
4704 }
4705 if (sas_address_parent != ioc->sas_hba.sas_address) {
4706 spin_lock_irqsave(&ioc->sas_node_lock, flags);
4707 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
4708 sas_address_parent);
4709 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4710 if (!sas_expander) {
4711 rc = _scsih_expander_add(ioc, parent_handle);
4712 if (rc != 0)
4713 return rc;
4714 }
4715 }
4716
4717 spin_lock_irqsave(&ioc->sas_node_lock, flags);
4718 sas_address = le64_to_cpu(expander_pg0.SASAddress);
4719 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
4720 sas_address);
4721 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4722
4723 if (sas_expander)
4724 return 0;
4725
4726 sas_expander = kzalloc(sizeof(struct _sas_node),
4727 GFP_KERNEL);
4728 if (!sas_expander) {
4729 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4730 ioc->name, __FILE__, __LINE__, __func__);
4731 return -1;
4732 }
4733
4734 sas_expander->handle = handle;
4735 sas_expander->num_phys = expander_pg0.NumPhys;
4736 sas_expander->sas_address_parent = sas_address_parent;
4737 sas_expander->sas_address = sas_address;
4738
4739 printk(MPT2SAS_INFO_FMT "expander_add: handle(0x%04x),"
4740 " parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n", ioc->name,
4741 handle, parent_handle, (unsigned long long)
4742 sas_expander->sas_address, sas_expander->num_phys);
4743
4744 if (!sas_expander->num_phys)
4745 goto out_fail;
4746 sas_expander->phy = kcalloc(sas_expander->num_phys,
4747 sizeof(struct _sas_phy), GFP_KERNEL);
4748 if (!sas_expander->phy) {
4749 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4750 ioc->name, __FILE__, __LINE__, __func__);
4751 rc = -1;
4752 goto out_fail;
4753 }
4754
4755 INIT_LIST_HEAD(&sas_expander->sas_port_list);
4756 mpt2sas_port = mpt2sas_transport_port_add(ioc, handle,
4757 sas_address_parent);
4758 if (!mpt2sas_port) {
4759 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4760 ioc->name, __FILE__, __LINE__, __func__);
4761 rc = -1;
4762 goto out_fail;
4763 }
4764 sas_expander->parent_dev = &mpt2sas_port->rphy->dev;
4765
4766 for (i = 0 ; i < sas_expander->num_phys ; i++) {
4767 if ((mpt2sas_config_get_expander_pg1(ioc, &mpi_reply,
4768 &expander_pg1, i, handle))) {
4769 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4770 ioc->name, __FILE__, __LINE__, __func__);
4771 rc = -1;
4772 goto out_fail;
4773 }
4774 sas_expander->phy[i].handle = handle;
4775 sas_expander->phy[i].phy_id = i;
4776
4777 if ((mpt2sas_transport_add_expander_phy(ioc,
4778 &sas_expander->phy[i], expander_pg1,
4779 sas_expander->parent_dev))) {
4780 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4781 ioc->name, __FILE__, __LINE__, __func__);
4782 rc = -1;
4783 goto out_fail;
4784 }
4785 }
4786
4787 if (sas_expander->enclosure_handle) {
4788 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
4789 &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
4790 sas_expander->enclosure_handle))) {
4791 sas_expander->enclosure_logical_id =
4792 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
4793 }
4794 }
4795
4796 _scsih_expander_node_add(ioc, sas_expander);
4797 return 0;
4798
4799 out_fail:
4800
4801 if (mpt2sas_port)
4802 mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
4803 sas_address_parent);
4804 kfree(sas_expander);
4805 return rc;
4806}
4807
4808/**
4809 * _scsih_done - scsih callback handler.
4810 * @ioc: per adapter object
4811 * @smid: system request message index
4812 * @msix_index: MSIX table index supplied by the OS
4813 * @reply: reply message frame(lower 32bit addr)
4814 *
4815 * Callback handler when sending internal generated message frames.
4816 * The callback index passed is `ioc->scsih_cb_idx`
4817 *
4818 * Return 1 meaning mf should be freed from _base_interrupt
4819 * 0 means the mf is freed from this function.
4820 */
4821static u8
4822_scsih_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
4823{
4824 MPI2DefaultReply_t *mpi_reply;
4825
4826 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
4827 if (ioc->scsih_cmds.status == MPT2_CMD_NOT_USED)
4828 return 1;
4829 if (ioc->scsih_cmds.smid != smid)
4830 return 1;
4831 ioc->scsih_cmds.status |= MPT2_CMD_COMPLETE;
4832 if (mpi_reply) {
4833 memcpy(ioc->scsih_cmds.reply, mpi_reply,
4834 mpi_reply->MsgLength*4);
4835 ioc->scsih_cmds.status |= MPT2_CMD_REPLY_VALID;
4836 }
4837 ioc->scsih_cmds.status &= ~MPT2_CMD_PENDING;
4838 complete(&ioc->scsih_cmds.done);
4839 return 1;
4840}
4841
4842/**
4843 * mpt2sas_expander_remove - removing expander object
4844 * @ioc: per adapter object
4845 * @sas_address: expander sas_address
4846 *
4847 * Return nothing.
4848 */
4849void
4850mpt2sas_expander_remove(struct MPT2SAS_ADAPTER *ioc, u64 sas_address)
4851{
4852 struct _sas_node *sas_expander;
4853 unsigned long flags;
4854
4855 if (ioc->shost_recovery)
4856 return;
4857
4858 spin_lock_irqsave(&ioc->sas_node_lock, flags);
4859 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
4860 sas_address);
4861 if (!sas_expander) {
4862 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4863 return;
4864 }
4865 list_del(&sas_expander->list);
4866 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4867 _scsih_expander_node_remove(ioc, sas_expander);
4868}
4869
4870/**
4871 * _scsih_check_access_status - check access flags
4872 * @ioc: per adapter object
4873 * @sas_address: sas address
4874 * @handle: sas device handle
4875 * @access_flags: errors returned during discovery of the device
4876 *
4877 * Return 0 for success, else failure
4878 */
4879static u8
4880_scsih_check_access_status(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
4881 u16 handle, u8 access_status)
4882{
4883 u8 rc = 1;
4884 char *desc = NULL;
4885
4886 switch (access_status) {
4887 case MPI2_SAS_DEVICE0_ASTATUS_NO_ERRORS:
4888 case MPI2_SAS_DEVICE0_ASTATUS_SATA_NEEDS_INITIALIZATION:
4889 rc = 0;
4890 break;
4891 case MPI2_SAS_DEVICE0_ASTATUS_SATA_CAPABILITY_FAILED:
4892 desc = "sata capability failed";
4893 break;
4894 case MPI2_SAS_DEVICE0_ASTATUS_SATA_AFFILIATION_CONFLICT:
4895 desc = "sata affiliation conflict";
4896 break;
4897 case MPI2_SAS_DEVICE0_ASTATUS_ROUTE_NOT_ADDRESSABLE:
4898 desc = "route not addressable";
4899 break;
4900 case MPI2_SAS_DEVICE0_ASTATUS_SMP_ERROR_NOT_ADDRESSABLE:
4901 desc = "smp error not addressable";
4902 break;
4903 case MPI2_SAS_DEVICE0_ASTATUS_DEVICE_BLOCKED:
4904 desc = "device blocked";
4905 break;
4906 case MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED:
4907 case MPI2_SAS_DEVICE0_ASTATUS_SIF_UNKNOWN:
4908 case MPI2_SAS_DEVICE0_ASTATUS_SIF_AFFILIATION_CONFLICT:
4909 case MPI2_SAS_DEVICE0_ASTATUS_SIF_DIAG:
4910 case MPI2_SAS_DEVICE0_ASTATUS_SIF_IDENTIFICATION:
4911 case MPI2_SAS_DEVICE0_ASTATUS_SIF_CHECK_POWER:
4912 case MPI2_SAS_DEVICE0_ASTATUS_SIF_PIO_SN:
4913 case MPI2_SAS_DEVICE0_ASTATUS_SIF_MDMA_SN:
4914 case MPI2_SAS_DEVICE0_ASTATUS_SIF_UDMA_SN:
4915 case MPI2_SAS_DEVICE0_ASTATUS_SIF_ZONING_VIOLATION:
4916 case MPI2_SAS_DEVICE0_ASTATUS_SIF_NOT_ADDRESSABLE:
4917 case MPI2_SAS_DEVICE0_ASTATUS_SIF_MAX:
4918 desc = "sata initialization failed";
4919 break;
4920 default:
4921 desc = "unknown";
4922 break;
4923 }
4924
4925 if (!rc)
4926 return 0;
4927
4928 printk(MPT2SAS_ERR_FMT "discovery errors(%s): sas_address(0x%016llx), "
4929 "handle(0x%04x)\n", ioc->name, desc,
4930 (unsigned long long)sas_address, handle);
4931 return rc;
4932}
4933
4934static void
4935_scsih_check_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4936{
4937 Mpi2ConfigReply_t mpi_reply;
4938 Mpi2SasDevicePage0_t sas_device_pg0;
4939 struct _sas_device *sas_device;
4940 u32 ioc_status;
4941 unsigned long flags;
4942 u64 sas_address;
4943 struct scsi_target *starget;
4944 struct MPT2SAS_TARGET *sas_target_priv_data;
4945 u32 device_info;
4946
4947 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
4948 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle)))
4949 return;
4950
4951 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
4952 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
4953 return;
4954
4955 /* check if this is end device */
4956 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
4957 if (!(_scsih_is_end_device(device_info)))
4958 return;
4959
4960 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4961 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4962 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
4963 sas_address);
4964
4965 if (!sas_device) {
4966 printk(MPT2SAS_ERR_FMT "device is not present "
4967 "handle(0x%04x), no sas_device!!!\n", ioc->name, handle);
4968 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4969 return;
4970 }
4971
4972 if (unlikely(sas_device->handle != handle)) {
4973 starget = sas_device->starget;
4974 sas_target_priv_data = starget->hostdata;
4975 starget_printk(KERN_INFO, starget, "handle changed from(0x%04x)"
4976 " to (0x%04x)!!!\n", sas_device->handle, handle);
4977 sas_target_priv_data->handle = handle;
4978 sas_device->handle = handle;
4979 }
4980 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4981
4982 /* check if device is present */
4983 if (!(le16_to_cpu(sas_device_pg0.Flags) &
4984 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
4985 printk(MPT2SAS_ERR_FMT "device is not present "
4986 "handle(0x%04x), flags!!!\n", ioc->name, handle);
4987 return;
4988 }
4989
4990 /* check if there were any issues with discovery */
4991 if (_scsih_check_access_status(ioc, sas_address, handle,
4992 sas_device_pg0.AccessStatus))
4993 return;
4994 _scsih_ublock_io_device(ioc, handle);
4995
4996}
4997
4998/**
4999 * _scsih_add_device - creating sas device object
5000 * @ioc: per adapter object
5001 * @handle: sas device handle
5002 * @phy_num: phy number end device attached to
5003 * @is_pd: is this hidden raid component
5004 *
5005 * Creating end device object, stored in ioc->sas_device_list.
5006 *
5007 * Returns 0 for success, non-zero for failure.
5008 */
5009static int
5010_scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd)
5011{
5012 Mpi2ConfigReply_t mpi_reply;
5013 Mpi2SasDevicePage0_t sas_device_pg0;
5014 Mpi2SasEnclosurePage0_t enclosure_pg0;
5015 struct _sas_device *sas_device;
5016 u32 ioc_status;
5017 __le64 sas_address;
5018 u32 device_info;
5019 unsigned long flags;
5020
5021 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
5022 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
5023 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5024 ioc->name, __FILE__, __LINE__, __func__);
5025 return -1;
5026 }
5027
5028 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5029 MPI2_IOCSTATUS_MASK;
5030 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
5031 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5032 ioc->name, __FILE__, __LINE__, __func__);
5033 return -1;
5034 }
5035
5036 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
5037
5038 /* check if device is present */
5039 if (!(le16_to_cpu(sas_device_pg0.Flags) &
5040 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
5041 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5042 ioc->name, __FILE__, __LINE__, __func__);
5043 printk(MPT2SAS_ERR_FMT "Flags = 0x%04x\n",
5044 ioc->name, le16_to_cpu(sas_device_pg0.Flags));
5045 return -1;
5046 }
5047
5048 /* check if there were any issues with discovery */
5049 if (_scsih_check_access_status(ioc, sas_address, handle,
5050 sas_device_pg0.AccessStatus))
5051 return -1;
5052
5053 /* check if this is end device */
5054 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
5055 if (!(_scsih_is_end_device(device_info))) {
5056 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5057 ioc->name, __FILE__, __LINE__, __func__);
5058 return -1;
5059 }
5060
5061
5062 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5063 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
5064 sas_address);
5065 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5066
5067 if (sas_device)
5068 return 0;
5069
5070 sas_device = kzalloc(sizeof(struct _sas_device),
5071 GFP_KERNEL);
5072 if (!sas_device) {
5073 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5074 ioc->name, __FILE__, __LINE__, __func__);
5075 return -1;
5076 }
5077
5078 sas_device->handle = handle;
5079 if (_scsih_get_sas_address(ioc, le16_to_cpu
5080 (sas_device_pg0.ParentDevHandle),
5081 &sas_device->sas_address_parent) != 0)
5082 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5083 ioc->name, __FILE__, __LINE__, __func__);
5084 sas_device->enclosure_handle =
5085 le16_to_cpu(sas_device_pg0.EnclosureHandle);
5086 sas_device->slot =
5087 le16_to_cpu(sas_device_pg0.Slot);
5088 sas_device->device_info = device_info;
5089 sas_device->sas_address = sas_address;
5090 sas_device->phy = sas_device_pg0.PhyNum;
5091
5092 /* get enclosure_logical_id */
5093 if (sas_device->enclosure_handle && !(mpt2sas_config_get_enclosure_pg0(
5094 ioc, &mpi_reply, &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
5095 sas_device->enclosure_handle)))
5096 sas_device->enclosure_logical_id =
5097 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
5098
5099 /* get device name */
5100 sas_device->device_name = le64_to_cpu(sas_device_pg0.DeviceName);
5101
5102 if (ioc->wait_for_port_enable_to_complete)
5103 _scsih_sas_device_init_add(ioc, sas_device);
5104 else
5105 _scsih_sas_device_add(ioc, sas_device);
5106
5107 return 0;
5108}
5109
5110/**
5111 * _scsih_remove_device - removing sas device object
5112 * @ioc: per adapter object
5113 * @sas_device_delete: the sas_device object
5114 *
5115 * Return nothing.
5116 */
5117static void
5118_scsih_remove_device(struct MPT2SAS_ADAPTER *ioc,
5119 struct _sas_device *sas_device)
5120{
5121 struct _sas_device sas_device_backup;
5122 struct MPT2SAS_TARGET *sas_target_priv_data;
5123
5124 if (!sas_device)
5125 return;
5126
5127 memcpy(&sas_device_backup, sas_device, sizeof(struct _sas_device));
5128 _scsih_sas_device_remove(ioc, sas_device);
5129
5130 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter: "
5131 "handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
5132 sas_device_backup.handle, (unsigned long long)
5133 sas_device_backup.sas_address));
5134
5135 if (sas_device_backup.starget && sas_device_backup.starget->hostdata) {
5136 sas_target_priv_data = sas_device_backup.starget->hostdata;
5137 sas_target_priv_data->deleted = 1;
5138 }
5139
5140 _scsih_ublock_io_device(ioc, sas_device_backup.handle);
5141
5142 if (!ioc->hide_drives)
5143 mpt2sas_transport_port_remove(ioc,
5144 sas_device_backup.sas_address,
5145 sas_device_backup.sas_address_parent);
5146
5147 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), sas_addr"
5148 "(0x%016llx)\n", ioc->name, sas_device_backup.handle,
5149 (unsigned long long) sas_device_backup.sas_address);
5150
5151 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit: "
5152 "handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
5153 sas_device_backup.handle, (unsigned long long)
5154 sas_device_backup.sas_address));
5155}
5156
5157/**
5158 * mpt2sas_device_remove - removing device object
5159 * @ioc: per adapter object
5160 * @sas_address: expander sas_address
5161 *
5162 * Return nothing.
5163 */
5164void
5165mpt2sas_device_remove(struct MPT2SAS_ADAPTER *ioc, u64 sas_address)
5166{
5167 struct _sas_device *sas_device;
5168 unsigned long flags;
5169
5170 if (ioc->shost_recovery)
5171 return;
5172
5173 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5174 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
5175 sas_address);
5176 if (!sas_device) {
5177 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5178 return;
5179 }
5180 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5181 _scsih_remove_device(ioc, sas_device);
5182}
5183
5184#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5185/**
5186 * _scsih_sas_topology_change_event_debug - debug for topology event
5187 * @ioc: per adapter object
5188 * @event_data: event data payload
5189 * Context: user.
5190 */
5191static void
5192_scsih_sas_topology_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
5193 Mpi2EventDataSasTopologyChangeList_t *event_data)
5194{
5195 int i;
5196 u16 handle;
5197 u16 reason_code;
5198 u8 phy_number;
5199 char *status_str = NULL;
5200 u8 link_rate, prev_link_rate;
5201
5202 switch (event_data->ExpStatus) {
5203 case MPI2_EVENT_SAS_TOPO_ES_ADDED:
5204 status_str = "add";
5205 break;
5206 case MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING:
5207 status_str = "remove";
5208 break;
5209 case MPI2_EVENT_SAS_TOPO_ES_RESPONDING:
5210 case 0:
5211 status_str = "responding";
5212 break;
5213 case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
5214 status_str = "remove delay";
5215 break;
5216 default:
5217 status_str = "unknown status";
5218 break;
5219 }
5220 printk(MPT2SAS_INFO_FMT "sas topology change: (%s)\n",
5221 ioc->name, status_str);
5222 printk(KERN_INFO "\thandle(0x%04x), enclosure_handle(0x%04x) "
5223 "start_phy(%02d), count(%d)\n",
5224 le16_to_cpu(event_data->ExpanderDevHandle),
5225 le16_to_cpu(event_data->EnclosureHandle),
5226 event_data->StartPhyNum, event_data->NumEntries);
5227 for (i = 0; i < event_data->NumEntries; i++) {
5228 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
5229 if (!handle)
5230 continue;
5231 phy_number = event_data->StartPhyNum + i;
5232 reason_code = event_data->PHY[i].PhyStatus &
5233 MPI2_EVENT_SAS_TOPO_RC_MASK;
5234 switch (reason_code) {
5235 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
5236 status_str = "target add";
5237 break;
5238 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
5239 status_str = "target remove";
5240 break;
5241 case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
5242 status_str = "delay target remove";
5243 break;
5244 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
5245 status_str = "link rate change";
5246 break;
5247 case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
5248 status_str = "target responding";
5249 break;
5250 default:
5251 status_str = "unknown";
5252 break;
5253 }
5254 link_rate = event_data->PHY[i].LinkRate >> 4;
5255 prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
5256 printk(KERN_INFO "\tphy(%02d), attached_handle(0x%04x): %s:"
5257 " link rate: new(0x%02x), old(0x%02x)\n", phy_number,
5258 handle, status_str, link_rate, prev_link_rate);
5259
5260 }
5261}
5262#endif
5263
5264/**
5265 * _scsih_sas_topology_change_event - handle topology changes
5266 * @ioc: per adapter object
5267 * @fw_event: The fw_event_work object
5268 * Context: user.
5269 *
5270 */
5271static void
5272_scsih_sas_topology_change_event(struct MPT2SAS_ADAPTER *ioc,
5273 struct fw_event_work *fw_event)
5274{
5275 int i;
5276 u16 parent_handle, handle;
5277 u16 reason_code;
5278 u8 phy_number, max_phys;
5279 struct _sas_node *sas_expander;
5280 struct _sas_device *sas_device;
5281 u64 sas_address;
5282 unsigned long flags;
5283 u8 link_rate, prev_link_rate;
5284 Mpi2EventDataSasTopologyChangeList_t *event_data = fw_event->event_data;
5285
5286#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5287 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5288 _scsih_sas_topology_change_event_debug(ioc, event_data);
5289#endif
5290
5291 if (ioc->shost_recovery || ioc->remove_host || ioc->pci_error_recovery)
5292 return;
5293
5294 if (!ioc->sas_hba.num_phys)
5295 _scsih_sas_host_add(ioc);
5296 else
5297 _scsih_sas_host_refresh(ioc);
5298
5299 if (fw_event->ignore) {
5300 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "ignoring expander "
5301 "event\n", ioc->name));
5302 return;
5303 }
5304
5305 parent_handle = le16_to_cpu(event_data->ExpanderDevHandle);
5306
5307 /* handle expander add */
5308 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_ADDED)
5309 if (_scsih_expander_add(ioc, parent_handle) != 0)
5310 return;
5311
5312 spin_lock_irqsave(&ioc->sas_node_lock, flags);
5313 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
5314 parent_handle);
5315 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
5316 if (sas_expander) {
5317 sas_address = sas_expander->sas_address;
5318 max_phys = sas_expander->num_phys;
5319 } else if (parent_handle < ioc->sas_hba.num_phys) {
5320 sas_address = ioc->sas_hba.sas_address;
5321 max_phys = ioc->sas_hba.num_phys;
5322 } else
5323 return;
5324
5325 /* handle siblings events */
5326 for (i = 0; i < event_data->NumEntries; i++) {
5327 if (fw_event->ignore) {
5328 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "ignoring "
5329 "expander event\n", ioc->name));
5330 return;
5331 }
5332 if (ioc->shost_recovery || ioc->remove_host ||
5333 ioc->pci_error_recovery)
5334 return;
5335 phy_number = event_data->StartPhyNum + i;
5336 if (phy_number >= max_phys)
5337 continue;
5338 reason_code = event_data->PHY[i].PhyStatus &
5339 MPI2_EVENT_SAS_TOPO_RC_MASK;
5340 if ((event_data->PHY[i].PhyStatus &
5341 MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT) && (reason_code !=
5342 MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING))
5343 continue;
5344 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
5345 if (!handle)
5346 continue;
5347 link_rate = event_data->PHY[i].LinkRate >> 4;
5348 prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
5349 switch (reason_code) {
5350 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
5351
5352 if (link_rate == prev_link_rate)
5353 break;
5354
5355 mpt2sas_transport_update_links(ioc, sas_address,
5356 handle, phy_number, link_rate);
5357
5358 if (link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
5359 break;
5360
5361 _scsih_check_device(ioc, handle);
5362 break;
5363 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
5364
5365 mpt2sas_transport_update_links(ioc, sas_address,
5366 handle, phy_number, link_rate);
5367
5368 _scsih_add_device(ioc, handle, phy_number, 0);
5369 break;
5370 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
5371
5372 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5373 sas_device = _scsih_sas_device_find_by_handle(ioc,
5374 handle);
5375 if (!sas_device) {
5376 spin_unlock_irqrestore(&ioc->sas_device_lock,
5377 flags);
5378 break;
5379 }
5380 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5381 _scsih_remove_device(ioc, sas_device);
5382 break;
5383 }
5384 }
5385
5386 /* handle expander removal */
5387 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING &&
5388 sas_expander)
5389 mpt2sas_expander_remove(ioc, sas_address);
5390
5391}
5392
5393#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5394/**
5395 * _scsih_sas_device_status_change_event_debug - debug for device event
5396 * @event_data: event data payload
5397 * Context: user.
5398 *
5399 * Return nothing.
5400 */
5401static void
5402_scsih_sas_device_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
5403 Mpi2EventDataSasDeviceStatusChange_t *event_data)
5404{
5405 char *reason_str = NULL;
5406
5407 switch (event_data->ReasonCode) {
5408 case MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA:
5409 reason_str = "smart data";
5410 break;
5411 case MPI2_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED:
5412 reason_str = "unsupported device discovered";
5413 break;
5414 case MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
5415 reason_str = "internal device reset";
5416 break;
5417 case MPI2_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL:
5418 reason_str = "internal task abort";
5419 break;
5420 case MPI2_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL:
5421 reason_str = "internal task abort set";
5422 break;
5423 case MPI2_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL:
5424 reason_str = "internal clear task set";
5425 break;
5426 case MPI2_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL:
5427 reason_str = "internal query task";
5428 break;
5429 case MPI2_EVENT_SAS_DEV_STAT_RC_SATA_INIT_FAILURE:
5430 reason_str = "sata init failure";
5431 break;
5432 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET:
5433 reason_str = "internal device reset complete";
5434 break;
5435 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_TASK_ABORT_INTERNAL:
5436 reason_str = "internal task abort complete";
5437 break;
5438 case MPI2_EVENT_SAS_DEV_STAT_RC_ASYNC_NOTIFICATION:
5439 reason_str = "internal async notification";
5440 break;
5441 case MPI2_EVENT_SAS_DEV_STAT_RC_EXPANDER_REDUCED_FUNCTIONALITY:
5442 reason_str = "expander reduced functionality";
5443 break;
5444 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_EXPANDER_REDUCED_FUNCTIONALITY:
5445 reason_str = "expander reduced functionality complete";
5446 break;
5447 default:
5448 reason_str = "unknown reason";
5449 break;
5450 }
5451 printk(MPT2SAS_INFO_FMT "device status change: (%s)\n"
5452 "\thandle(0x%04x), sas address(0x%016llx), tag(%d)",
5453 ioc->name, reason_str, le16_to_cpu(event_data->DevHandle),
5454 (unsigned long long)le64_to_cpu(event_data->SASAddress),
5455 le16_to_cpu(event_data->TaskTag));
5456 if (event_data->ReasonCode == MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA)
5457 printk(MPT2SAS_INFO_FMT ", ASC(0x%x), ASCQ(0x%x)\n", ioc->name,
5458 event_data->ASC, event_data->ASCQ);
5459 printk(KERN_INFO "\n");
5460}
5461#endif
5462
5463/**
5464 * _scsih_sas_device_status_change_event - handle device status change
5465 * @ioc: per adapter object
5466 * @fw_event: The fw_event_work object
5467 * Context: user.
5468 *
5469 * Return nothing.
5470 */
5471static void
5472_scsih_sas_device_status_change_event(struct MPT2SAS_ADAPTER *ioc,
5473 struct fw_event_work *fw_event)
5474{
5475 struct MPT2SAS_TARGET *target_priv_data;
5476 struct _sas_device *sas_device;
5477 u64 sas_address;
5478 unsigned long flags;
5479 Mpi2EventDataSasDeviceStatusChange_t *event_data =
5480 fw_event->event_data;
5481
5482#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5483 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5484 _scsih_sas_device_status_change_event_debug(ioc,
5485 event_data);
5486#endif
5487
5488 /* In MPI Revision K (0xC), the internal device reset complete was
5489 * implemented, so avoid setting tm_busy flag for older firmware.
5490 */
5491 if ((ioc->facts.HeaderVersion >> 8) < 0xC)
5492 return;
5493
5494 if (event_data->ReasonCode !=
5495 MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET &&
5496 event_data->ReasonCode !=
5497 MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET)
5498 return;
5499
5500 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5501 sas_address = le64_to_cpu(event_data->SASAddress);
5502 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
5503 sas_address);
5504 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5505
5506 if (!sas_device || !sas_device->starget)
5507 return;
5508
5509 target_priv_data = sas_device->starget->hostdata;
5510 if (!target_priv_data)
5511 return;
5512
5513 if (event_data->ReasonCode ==
5514 MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET)
5515 target_priv_data->tm_busy = 1;
5516 else
5517 target_priv_data->tm_busy = 0;
5518}
5519
5520#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5521/**
5522 * _scsih_sas_enclosure_dev_status_change_event_debug - debug for enclosure event
5523 * @ioc: per adapter object
5524 * @event_data: event data payload
5525 * Context: user.
5526 *
5527 * Return nothing.
5528 */
5529static void
5530_scsih_sas_enclosure_dev_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
5531 Mpi2EventDataSasEnclDevStatusChange_t *event_data)
5532{
5533 char *reason_str = NULL;
5534
5535 switch (event_data->ReasonCode) {
5536 case MPI2_EVENT_SAS_ENCL_RC_ADDED:
5537 reason_str = "enclosure add";
5538 break;
5539 case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING:
5540 reason_str = "enclosure remove";
5541 break;
5542 default:
5543 reason_str = "unknown reason";
5544 break;
5545 }
5546
5547 printk(MPT2SAS_INFO_FMT "enclosure status change: (%s)\n"
5548 "\thandle(0x%04x), enclosure logical id(0x%016llx)"
5549 " number slots(%d)\n", ioc->name, reason_str,
5550 le16_to_cpu(event_data->EnclosureHandle),
5551 (unsigned long long)le64_to_cpu(event_data->EnclosureLogicalID),
5552 le16_to_cpu(event_data->StartSlot));
5553}
5554#endif
5555
5556/**
5557 * _scsih_sas_enclosure_dev_status_change_event - handle enclosure events
5558 * @ioc: per adapter object
5559 * @fw_event: The fw_event_work object
5560 * Context: user.
5561 *
5562 * Return nothing.
5563 */
5564static void
5565_scsih_sas_enclosure_dev_status_change_event(struct MPT2SAS_ADAPTER *ioc,
5566 struct fw_event_work *fw_event)
5567{
5568#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5569 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5570 _scsih_sas_enclosure_dev_status_change_event_debug(ioc,
5571 fw_event->event_data);
5572#endif
5573}
5574
5575/**
5576 * _scsih_sas_broadcast_primative_event - handle broadcast events
5577 * @ioc: per adapter object
5578 * @fw_event: The fw_event_work object
5579 * Context: user.
5580 *
5581 * Return nothing.
5582 */
5583static void
5584_scsih_sas_broadcast_primative_event(struct MPT2SAS_ADAPTER *ioc,
5585 struct fw_event_work *fw_event)
5586{
5587 struct scsi_cmnd *scmd;
5588 struct scsi_device *sdev;
5589 u16 smid, handle;
5590 u32 lun;
5591 struct MPT2SAS_DEVICE *sas_device_priv_data;
5592 u32 termination_count;
5593 u32 query_count;
5594 Mpi2SCSITaskManagementReply_t *mpi_reply;
5595 Mpi2EventDataSasBroadcastPrimitive_t *event_data = fw_event->event_data;
5596 u16 ioc_status;
5597 unsigned long flags;
5598 int r;
5599 u8 max_retries = 0;
5600 u8 task_abort_retries;
5601
5602 mutex_lock(&ioc->tm_cmds.mutex);
5603 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter: phy number(%d), "
5604 "width(%d)\n", ioc->name, __func__, event_data->PhyNum,
5605 event_data->PortWidth));
5606
5607 _scsih_block_io_all_device(ioc);
5608
5609 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5610 mpi_reply = ioc->tm_cmds.reply;
5611broadcast_aen_retry:
5612
5613 /* sanity checks for retrying this loop */
5614 if (max_retries++ == 5) {
5615 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: giving up\n",
5616 ioc->name, __func__));
5617 goto out;
5618 } else if (max_retries > 1)
5619 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: %d retry\n",
5620 ioc->name, __func__, max_retries - 1));
5621
5622 termination_count = 0;
5623 query_count = 0;
5624 for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
5625 if (ioc->ioc_reset_in_progress_status)
5626 goto out;
5627 scmd = _scsih_scsi_lookup_get(ioc, smid);
5628 if (!scmd)
5629 continue;
5630 sdev = scmd->device;
5631 sas_device_priv_data = sdev->hostdata;
5632 if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
5633 continue;
5634 /* skip hidden raid components */
5635 if (sas_device_priv_data->sas_target->flags &
5636 MPT_TARGET_FLAGS_RAID_COMPONENT)
5637 continue;
5638 /* skip volumes */
5639 if (sas_device_priv_data->sas_target->flags &
5640 MPT_TARGET_FLAGS_VOLUME)
5641 continue;
5642
5643 handle = sas_device_priv_data->sas_target->handle;
5644 lun = sas_device_priv_data->lun;
5645 query_count++;
5646
5647 if (ioc->ioc_reset_in_progress_status)
5648 goto out;
5649
5650 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
5651 r = mpt2sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
5652 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30, 0,
5653 TM_MUTEX_OFF);
5654 if (r == FAILED) {
5655 sdev_printk(KERN_WARNING, sdev,
5656 "mpt2sas_scsih_issue_tm: FAILED when sending "
5657 "QUERY_TASK: scmd(%p)\n", scmd);
5658 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5659 goto broadcast_aen_retry;
5660 }
5661 ioc_status = le16_to_cpu(mpi_reply->IOCStatus)
5662 & MPI2_IOCSTATUS_MASK;
5663 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
5664 sdev_printk(KERN_WARNING, sdev, "query task: FAILED "
5665 "with IOCSTATUS(0x%04x), scmd(%p)\n", ioc_status,
5666 scmd);
5667 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5668 goto broadcast_aen_retry;
5669 }
5670
5671 /* see if IO is still owned by IOC and target */
5672 if (mpi_reply->ResponseCode ==
5673 MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
5674 mpi_reply->ResponseCode ==
5675 MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC) {
5676 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5677 continue;
5678 }
5679 task_abort_retries = 0;
5680 tm_retry:
5681 if (task_abort_retries++ == 60) {
5682 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
5683 "%s: ABORT_TASK: giving up\n", ioc->name,
5684 __func__));
5685 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5686 goto broadcast_aen_retry;
5687 }
5688
5689 if (ioc->ioc_reset_in_progress_status)
5690 goto out_no_lock;
5691
5692 r = mpt2sas_scsih_issue_tm(ioc, handle, sdev->channel, sdev->id,
5693 sdev->lun, MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30,
5694 scmd->serial_number, TM_MUTEX_OFF);
5695 if (r == FAILED) {
5696 sdev_printk(KERN_WARNING, sdev,
5697 "mpt2sas_scsih_issue_tm: ABORT_TASK: FAILED : "
5698 "scmd(%p)\n", scmd);
5699 goto tm_retry;
5700 }
5701
5702 if (task_abort_retries > 1)
5703 sdev_printk(KERN_WARNING, sdev,
5704 "mpt2sas_scsih_issue_tm: ABORT_TASK: RETRIES (%d):"
5705 " scmd(%p)\n",
5706 task_abort_retries - 1, scmd);
5707
5708 termination_count += le32_to_cpu(mpi_reply->TerminationCount);
5709 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5710 }
5711
5712 if (ioc->broadcast_aen_pending) {
5713 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: loop back due to"
5714 " pending AEN\n", ioc->name, __func__));
5715 ioc->broadcast_aen_pending = 0;
5716 goto broadcast_aen_retry;
5717 }
5718
5719 out:
5720 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
5721 out_no_lock:
5722
5723 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
5724 "%s - exit, query_count = %d termination_count = %d\n",
5725 ioc->name, __func__, query_count, termination_count));
5726
5727 ioc->broadcast_aen_busy = 0;
5728 if (!ioc->ioc_reset_in_progress_status)
5729 _scsih_ublock_io_all_device(ioc);
5730 mutex_unlock(&ioc->tm_cmds.mutex);
5731}
5732
5733/**
5734 * _scsih_sas_discovery_event - handle discovery events
5735 * @ioc: per adapter object
5736 * @fw_event: The fw_event_work object
5737 * Context: user.
5738 *
5739 * Return nothing.
5740 */
5741static void
5742_scsih_sas_discovery_event(struct MPT2SAS_ADAPTER *ioc,
5743 struct fw_event_work *fw_event)
5744{
5745 Mpi2EventDataSasDiscovery_t *event_data = fw_event->event_data;
5746
5747#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5748 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) {
5749 printk(MPT2SAS_INFO_FMT "discovery event: (%s)", ioc->name,
5750 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
5751 "start" : "stop");
5752 if (event_data->DiscoveryStatus)
5753 printk("discovery_status(0x%08x)",
5754 le32_to_cpu(event_data->DiscoveryStatus));
5755 printk("\n");
5756 }
5757#endif
5758
5759 if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED &&
5760 !ioc->sas_hba.num_phys)
5761 _scsih_sas_host_add(ioc);
5762}
5763
5764/**
5765 * _scsih_reprobe_lun - reprobing lun
5766 * @sdev: scsi device struct
5767 * @no_uld_attach: sdev->no_uld_attach flag setting
5768 *
5769 **/
5770static void
5771_scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach)
5772{
5773 int rc;
5774
5775 sdev->no_uld_attach = no_uld_attach ? 1 : 0;
5776 sdev_printk(KERN_INFO, sdev, "%s raid component\n",
5777 sdev->no_uld_attach ? "hidding" : "exposing");
5778 rc = scsi_device_reprobe(sdev);
5779}
5780
5781/**
5782 * _scsih_reprobe_target - reprobing target
5783 * @starget: scsi target struct
5784 * @no_uld_attach: sdev->no_uld_attach flag setting
5785 *
5786 * Note: no_uld_attach flag determines whether the disk device is attached
5787 * to block layer. A value of `1` means to not attach.
5788 **/
5789static void
5790_scsih_reprobe_target(struct scsi_target *starget, int no_uld_attach)
5791{
5792 struct MPT2SAS_TARGET *sas_target_priv_data = starget->hostdata;
5793
5794 if (no_uld_attach)
5795 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_RAID_COMPONENT;
5796 else
5797 sas_target_priv_data->flags &= ~MPT_TARGET_FLAGS_RAID_COMPONENT;
5798
5799 starget_for_each_device(starget, no_uld_attach ? (void *)1 : NULL,
5800 _scsih_reprobe_lun);
5801}
5802/**
5803 * _scsih_sas_volume_add - add new volume
5804 * @ioc: per adapter object
5805 * @element: IR config element data
5806 * Context: user.
5807 *
5808 * Return nothing.
5809 */
5810static void
5811_scsih_sas_volume_add(struct MPT2SAS_ADAPTER *ioc,
5812 Mpi2EventIrConfigElement_t *element)
5813{
5814 struct _raid_device *raid_device;
5815 unsigned long flags;
5816 u64 wwid;
5817 u16 handle = le16_to_cpu(element->VolDevHandle);
5818 int rc;
5819
5820 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
5821 if (!wwid) {
5822 printk(MPT2SAS_ERR_FMT
5823 "failure at %s:%d/%s()!\n", ioc->name,
5824 __FILE__, __LINE__, __func__);
5825 return;
5826 }
5827
5828 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5829 raid_device = _scsih_raid_device_find_by_wwid(ioc, wwid);
5830 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5831
5832 if (raid_device)
5833 return;
5834
5835 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
5836 if (!raid_device) {
5837 printk(MPT2SAS_ERR_FMT
5838 "failure at %s:%d/%s()!\n", ioc->name,
5839 __FILE__, __LINE__, __func__);
5840 return;
5841 }
5842
5843 raid_device->id = ioc->sas_id++;
5844 raid_device->channel = RAID_CHANNEL;
5845 raid_device->handle = handle;
5846 raid_device->wwid = wwid;
5847 _scsih_raid_device_add(ioc, raid_device);
5848 if (!ioc->wait_for_port_enable_to_complete) {
5849 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
5850 raid_device->id, 0);
5851 if (rc)
5852 _scsih_raid_device_remove(ioc, raid_device);
5853 } else
5854 _scsih_determine_boot_device(ioc, raid_device, 1);
5855}
5856
5857/**
5858 * _scsih_sas_volume_delete - delete volume
5859 * @ioc: per adapter object
5860 * @handle: volume device handle
5861 * Context: user.
5862 *
5863 * Return nothing.
5864 */
5865static void
5866_scsih_sas_volume_delete(struct MPT2SAS_ADAPTER *ioc, u16 handle)
5867{
5868 struct _raid_device *raid_device;
5869 unsigned long flags;
5870 struct MPT2SAS_TARGET *sas_target_priv_data;
5871
5872 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5873 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
5874 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5875 if (!raid_device)
5876 return;
5877 if (raid_device->starget) {
5878 sas_target_priv_data = raid_device->starget->hostdata;
5879 sas_target_priv_data->deleted = 1;
5880 scsi_remove_target(&raid_device->starget->dev);
5881 }
5882 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), wwid"
5883 "(0x%016llx)\n", ioc->name, raid_device->handle,
5884 (unsigned long long) raid_device->wwid);
5885 _scsih_raid_device_remove(ioc, raid_device);
5886}
5887
5888/**
5889 * _scsih_sas_pd_expose - expose pd component to /dev/sdX
5890 * @ioc: per adapter object
5891 * @element: IR config element data
5892 * Context: user.
5893 *
5894 * Return nothing.
5895 */
5896static void
5897_scsih_sas_pd_expose(struct MPT2SAS_ADAPTER *ioc,
5898 Mpi2EventIrConfigElement_t *element)
5899{
5900 struct _sas_device *sas_device;
5901 unsigned long flags;
5902 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5903
5904 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5905 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5906 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5907 if (!sas_device)
5908 return;
5909
5910 /* exposing raid component */
5911 sas_device->volume_handle = 0;
5912 sas_device->volume_wwid = 0;
5913 clear_bit(handle, ioc->pd_handles);
5914 _scsih_reprobe_target(sas_device->starget, 0);
5915}
5916
5917/**
5918 * _scsih_sas_pd_hide - hide pd component from /dev/sdX
5919 * @ioc: per adapter object
5920 * @element: IR config element data
5921 * Context: user.
5922 *
5923 * Return nothing.
5924 */
5925static void
5926_scsih_sas_pd_hide(struct MPT2SAS_ADAPTER *ioc,
5927 Mpi2EventIrConfigElement_t *element)
5928{
5929 struct _sas_device *sas_device;
5930 unsigned long flags;
5931 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5932
5933 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5934 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5935 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5936 if (!sas_device)
5937 return;
5938
5939 /* hiding raid component */
5940 mpt2sas_config_get_volume_handle(ioc, handle,
5941 &sas_device->volume_handle);
5942 mpt2sas_config_get_volume_wwid(ioc, sas_device->volume_handle,
5943 &sas_device->volume_wwid);
5944 set_bit(handle, ioc->pd_handles);
5945 _scsih_reprobe_target(sas_device->starget, 1);
5946
5947}
5948
5949/**
5950 * _scsih_sas_pd_delete - delete pd component
5951 * @ioc: per adapter object
5952 * @element: IR config element data
5953 * Context: user.
5954 *
5955 * Return nothing.
5956 */
5957static void
5958_scsih_sas_pd_delete(struct MPT2SAS_ADAPTER *ioc,
5959 Mpi2EventIrConfigElement_t *element)
5960{
5961 struct _sas_device *sas_device;
5962 unsigned long flags;
5963 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5964
5965 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5966 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5967 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5968 if (!sas_device)
5969 return;
5970 _scsih_remove_device(ioc, sas_device);
5971}
5972
5973/**
5974 * _scsih_sas_pd_add - remove pd component
5975 * @ioc: per adapter object
5976 * @element: IR config element data
5977 * Context: user.
5978 *
5979 * Return nothing.
5980 */
5981static void
5982_scsih_sas_pd_add(struct MPT2SAS_ADAPTER *ioc,
5983 Mpi2EventIrConfigElement_t *element)
5984{
5985 struct _sas_device *sas_device;
5986 unsigned long flags;
5987 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5988 Mpi2ConfigReply_t mpi_reply;
5989 Mpi2SasDevicePage0_t sas_device_pg0;
5990 u32 ioc_status;
5991 u64 sas_address;
5992 u16 parent_handle;
5993
5994 set_bit(handle, ioc->pd_handles);
5995
5996 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5997 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5998 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5999 if (sas_device)
6000 return;
6001
6002 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
6003 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
6004 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6005 ioc->name, __FILE__, __LINE__, __func__);
6006 return;
6007 }
6008
6009 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6010 MPI2_IOCSTATUS_MASK;
6011 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6012 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6013 ioc->name, __FILE__, __LINE__, __func__);
6014 return;
6015 }
6016
6017 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
6018 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
6019 mpt2sas_transport_update_links(ioc, sas_address, handle,
6020 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
6021
6022 _scsih_add_device(ioc, handle, 0, 1);
6023}
6024
6025#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
6026/**
6027 * _scsih_sas_ir_config_change_event_debug - debug for IR Config Change events
6028 * @ioc: per adapter object
6029 * @event_data: event data payload
6030 * Context: user.
6031 *
6032 * Return nothing.
6033 */
6034static void
6035_scsih_sas_ir_config_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
6036 Mpi2EventDataIrConfigChangeList_t *event_data)
6037{
6038 Mpi2EventIrConfigElement_t *element;
6039 u8 element_type;
6040 int i;
6041 char *reason_str = NULL, *element_str = NULL;
6042
6043 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
6044
6045 printk(MPT2SAS_INFO_FMT "raid config change: (%s), elements(%d)\n",
6046 ioc->name, (le32_to_cpu(event_data->Flags) &
6047 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ?
6048 "foreign" : "native", event_data->NumElements);
6049 for (i = 0; i < event_data->NumElements; i++, element++) {
6050 switch (element->ReasonCode) {
6051 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
6052 reason_str = "add";
6053 break;
6054 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
6055 reason_str = "remove";
6056 break;
6057 case MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE:
6058 reason_str = "no change";
6059 break;
6060 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
6061 reason_str = "hide";
6062 break;
6063 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
6064 reason_str = "unhide";
6065 break;
6066 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
6067 reason_str = "volume_created";
6068 break;
6069 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
6070 reason_str = "volume_deleted";
6071 break;
6072 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
6073 reason_str = "pd_created";
6074 break;
6075 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
6076 reason_str = "pd_deleted";
6077 break;
6078 default:
6079 reason_str = "unknown reason";
6080 break;
6081 }
6082 element_type = le16_to_cpu(element->ElementFlags) &
6083 MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
6084 switch (element_type) {
6085 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT:
6086 element_str = "volume";
6087 break;
6088 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT:
6089 element_str = "phys disk";
6090 break;
6091 case MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT:
6092 element_str = "hot spare";
6093 break;
6094 default:
6095 element_str = "unknown element";
6096 break;
6097 }
6098 printk(KERN_INFO "\t(%s:%s), vol handle(0x%04x), "
6099 "pd handle(0x%04x), pd num(0x%02x)\n", element_str,
6100 reason_str, le16_to_cpu(element->VolDevHandle),
6101 le16_to_cpu(element->PhysDiskDevHandle),
6102 element->PhysDiskNum);
6103 }
6104}
6105#endif
6106
6107/**
6108 * _scsih_sas_ir_config_change_event - handle ir configuration change events
6109 * @ioc: per adapter object
6110 * @fw_event: The fw_event_work object
6111 * Context: user.
6112 *
6113 * Return nothing.
6114 */
6115static void
6116_scsih_sas_ir_config_change_event(struct MPT2SAS_ADAPTER *ioc,
6117 struct fw_event_work *fw_event)
6118{
6119 Mpi2EventIrConfigElement_t *element;
6120 int i;
6121 u8 foreign_config;
6122 Mpi2EventDataIrConfigChangeList_t *event_data = fw_event->event_data;
6123
6124#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
6125 if ((ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
6126 && !ioc->hide_ir_msg)
6127 _scsih_sas_ir_config_change_event_debug(ioc, event_data);
6128
6129#endif
6130 foreign_config = (le32_to_cpu(event_data->Flags) &
6131 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
6132
6133 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
6134 for (i = 0; i < event_data->NumElements; i++, element++) {
6135
6136 switch (element->ReasonCode) {
6137 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
6138 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
6139 if (!foreign_config)
6140 _scsih_sas_volume_add(ioc, element);
6141 break;
6142 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
6143 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
6144 if (!foreign_config)
6145 _scsih_sas_volume_delete(ioc,
6146 le16_to_cpu(element->VolDevHandle));
6147 break;
6148 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
6149 if (!ioc->is_warpdrive)
6150 _scsih_sas_pd_hide(ioc, element);
6151 break;
6152 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
6153 if (!ioc->is_warpdrive)
6154 _scsih_sas_pd_expose(ioc, element);
6155 break;
6156 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
6157 if (!ioc->is_warpdrive)
6158 _scsih_sas_pd_add(ioc, element);
6159 break;
6160 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
6161 if (!ioc->is_warpdrive)
6162 _scsih_sas_pd_delete(ioc, element);
6163 break;
6164 }
6165 }
6166}
6167
6168/**
6169 * _scsih_sas_ir_volume_event - IR volume event
6170 * @ioc: per adapter object
6171 * @fw_event: The fw_event_work object
6172 * Context: user.
6173 *
6174 * Return nothing.
6175 */
6176static void
6177_scsih_sas_ir_volume_event(struct MPT2SAS_ADAPTER *ioc,
6178 struct fw_event_work *fw_event)
6179{
6180 u64 wwid;
6181 unsigned long flags;
6182 struct _raid_device *raid_device;
6183 u16 handle;
6184 u32 state;
6185 int rc;
6186 Mpi2EventDataIrVolume_t *event_data = fw_event->event_data;
6187
6188 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
6189 return;
6190
6191 handle = le16_to_cpu(event_data->VolDevHandle);
6192 state = le32_to_cpu(event_data->NewValue);
6193 if (!ioc->hide_ir_msg)
6194 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle(0x%04x), "
6195 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
6196 le32_to_cpu(event_data->PreviousValue), state));
6197
6198 switch (state) {
6199 case MPI2_RAID_VOL_STATE_MISSING:
6200 case MPI2_RAID_VOL_STATE_FAILED:
6201 _scsih_sas_volume_delete(ioc, handle);
6202 break;
6203
6204 case MPI2_RAID_VOL_STATE_ONLINE:
6205 case MPI2_RAID_VOL_STATE_DEGRADED:
6206 case MPI2_RAID_VOL_STATE_OPTIMAL:
6207
6208 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6209 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
6210 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6211
6212 if (raid_device)
6213 break;
6214
6215 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
6216 if (!wwid) {
6217 printk(MPT2SAS_ERR_FMT
6218 "failure at %s:%d/%s()!\n", ioc->name,
6219 __FILE__, __LINE__, __func__);
6220 break;
6221 }
6222
6223 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
6224 if (!raid_device) {
6225 printk(MPT2SAS_ERR_FMT
6226 "failure at %s:%d/%s()!\n", ioc->name,
6227 __FILE__, __LINE__, __func__);
6228 break;
6229 }
6230
6231 raid_device->id = ioc->sas_id++;
6232 raid_device->channel = RAID_CHANNEL;
6233 raid_device->handle = handle;
6234 raid_device->wwid = wwid;
6235 _scsih_raid_device_add(ioc, raid_device);
6236 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
6237 raid_device->id, 0);
6238 if (rc)
6239 _scsih_raid_device_remove(ioc, raid_device);
6240 break;
6241
6242 case MPI2_RAID_VOL_STATE_INITIALIZING:
6243 default:
6244 break;
6245 }
6246}
6247
6248/**
6249 * _scsih_sas_ir_physical_disk_event - PD event
6250 * @ioc: per adapter object
6251 * @fw_event: The fw_event_work object
6252 * Context: user.
6253 *
6254 * Return nothing.
6255 */
6256static void
6257_scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc,
6258 struct fw_event_work *fw_event)
6259{
6260 u16 handle, parent_handle;
6261 u32 state;
6262 struct _sas_device *sas_device;
6263 unsigned long flags;
6264 Mpi2ConfigReply_t mpi_reply;
6265 Mpi2SasDevicePage0_t sas_device_pg0;
6266 u32 ioc_status;
6267 Mpi2EventDataIrPhysicalDisk_t *event_data = fw_event->event_data;
6268 u64 sas_address;
6269
6270 if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED)
6271 return;
6272
6273 handle = le16_to_cpu(event_data->PhysDiskDevHandle);
6274 state = le32_to_cpu(event_data->NewValue);
6275
6276 if (!ioc->hide_ir_msg)
6277 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle(0x%04x), "
6278 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
6279 le32_to_cpu(event_data->PreviousValue), state));
6280
6281 switch (state) {
6282 case MPI2_RAID_PD_STATE_ONLINE:
6283 case MPI2_RAID_PD_STATE_DEGRADED:
6284 case MPI2_RAID_PD_STATE_REBUILDING:
6285 case MPI2_RAID_PD_STATE_OPTIMAL:
6286 case MPI2_RAID_PD_STATE_HOT_SPARE:
6287
6288 if (!ioc->is_warpdrive)
6289 set_bit(handle, ioc->pd_handles);
6290
6291 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6292 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
6293 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6294
6295 if (sas_device)
6296 return;
6297
6298 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
6299 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
6300 handle))) {
6301 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6302 ioc->name, __FILE__, __LINE__, __func__);
6303 return;
6304 }
6305
6306 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6307 MPI2_IOCSTATUS_MASK;
6308 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6309 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6310 ioc->name, __FILE__, __LINE__, __func__);
6311 return;
6312 }
6313
6314 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
6315 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
6316 mpt2sas_transport_update_links(ioc, sas_address, handle,
6317 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
6318
6319 _scsih_add_device(ioc, handle, 0, 1);
6320
6321 break;
6322
6323 case MPI2_RAID_PD_STATE_OFFLINE:
6324 case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
6325 case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
6326 default:
6327 break;
6328 }
6329}
6330
6331#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
6332/**
6333 * _scsih_sas_ir_operation_status_event_debug - debug for IR op event
6334 * @ioc: per adapter object
6335 * @event_data: event data payload
6336 * Context: user.
6337 *
6338 * Return nothing.
6339 */
6340static void
6341_scsih_sas_ir_operation_status_event_debug(struct MPT2SAS_ADAPTER *ioc,
6342 Mpi2EventDataIrOperationStatus_t *event_data)
6343{
6344 char *reason_str = NULL;
6345
6346 switch (event_data->RAIDOperation) {
6347 case MPI2_EVENT_IR_RAIDOP_RESYNC:
6348 reason_str = "resync";
6349 break;
6350 case MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION:
6351 reason_str = "online capacity expansion";
6352 break;
6353 case MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK:
6354 reason_str = "consistency check";
6355 break;
6356 case MPI2_EVENT_IR_RAIDOP_BACKGROUND_INIT:
6357 reason_str = "background init";
6358 break;
6359 case MPI2_EVENT_IR_RAIDOP_MAKE_DATA_CONSISTENT:
6360 reason_str = "make data consistent";
6361 break;
6362 }
6363
6364 if (!reason_str)
6365 return;
6366
6367 printk(MPT2SAS_INFO_FMT "raid operational status: (%s)"
6368 "\thandle(0x%04x), percent complete(%d)\n",
6369 ioc->name, reason_str,
6370 le16_to_cpu(event_data->VolDevHandle),
6371 event_data->PercentComplete);
6372}
6373#endif
6374
6375/**
6376 * _scsih_sas_ir_operation_status_event - handle RAID operation events
6377 * @ioc: per adapter object
6378 * @fw_event: The fw_event_work object
6379 * Context: user.
6380 *
6381 * Return nothing.
6382 */
6383static void
6384_scsih_sas_ir_operation_status_event(struct MPT2SAS_ADAPTER *ioc,
6385 struct fw_event_work *fw_event)
6386{
6387 Mpi2EventDataIrOperationStatus_t *event_data = fw_event->event_data;
6388 static struct _raid_device *raid_device;
6389 unsigned long flags;
6390 u16 handle;
6391
6392#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
6393 if ((ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
6394 && !ioc->hide_ir_msg)
6395 _scsih_sas_ir_operation_status_event_debug(ioc,
6396 event_data);
6397#endif
6398
6399 /* code added for raid transport support */
6400 if (event_data->RAIDOperation == MPI2_EVENT_IR_RAIDOP_RESYNC) {
6401
6402 handle = le16_to_cpu(event_data->VolDevHandle);
6403
6404 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6405 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
6406 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6407
6408 if (!raid_device)
6409 return;
6410
6411 if (event_data->RAIDOperation == MPI2_EVENT_IR_RAIDOP_RESYNC)
6412 raid_device->percent_complete =
6413 event_data->PercentComplete;
6414 }
6415}
6416
6417/**
6418 * _scsih_prep_device_scan - initialize parameters prior to device scan
6419 * @ioc: per adapter object
6420 *
6421 * Set the deleted flag prior to device scan. If the device is found during
6422 * the scan, then we clear the deleted flag.
6423 */
6424static void
6425_scsih_prep_device_scan(struct MPT2SAS_ADAPTER *ioc)
6426{
6427 struct MPT2SAS_DEVICE *sas_device_priv_data;
6428 struct scsi_device *sdev;
6429
6430 shost_for_each_device(sdev, ioc->shost) {
6431 sas_device_priv_data = sdev->hostdata;
6432 if (sas_device_priv_data && sas_device_priv_data->sas_target)
6433 sas_device_priv_data->sas_target->deleted = 1;
6434 }
6435}
6436
6437/**
6438 * _scsih_mark_responding_sas_device - mark a sas_devices as responding
6439 * @ioc: per adapter object
6440 * @sas_address: sas address
6441 * @slot: enclosure slot id
6442 * @handle: device handle
6443 *
6444 * After host reset, find out whether devices are still responding.
6445 * Used in _scsi_remove_unresponsive_sas_devices.
6446 *
6447 * Return nothing.
6448 */
6449static void
6450_scsih_mark_responding_sas_device(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
6451 u16 slot, u16 handle)
6452{
6453 struct MPT2SAS_TARGET *sas_target_priv_data = NULL;
6454 struct scsi_target *starget;
6455 struct _sas_device *sas_device;
6456 unsigned long flags;
6457
6458 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6459 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
6460 if (sas_device->sas_address == sas_address &&
6461 sas_device->slot == slot) {
6462 sas_device->responding = 1;
6463 starget = sas_device->starget;
6464 if (starget && starget->hostdata) {
6465 sas_target_priv_data = starget->hostdata;
6466 sas_target_priv_data->tm_busy = 0;
6467 sas_target_priv_data->deleted = 0;
6468 } else
6469 sas_target_priv_data = NULL;
6470 if (starget)
6471 starget_printk(KERN_INFO, starget,
6472 "handle(0x%04x), sas_addr(0x%016llx), "
6473 "enclosure logical id(0x%016llx), "
6474 "slot(%d)\n", handle,
6475 (unsigned long long)sas_device->sas_address,
6476 (unsigned long long)
6477 sas_device->enclosure_logical_id,
6478 sas_device->slot);
6479 if (sas_device->handle == handle)
6480 goto out;
6481 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
6482 sas_device->handle);
6483 sas_device->handle = handle;
6484 if (sas_target_priv_data)
6485 sas_target_priv_data->handle = handle;
6486 goto out;
6487 }
6488 }
6489 out:
6490 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6491}
6492
6493/**
6494 * _scsih_search_responding_sas_devices -
6495 * @ioc: per adapter object
6496 *
6497 * After host reset, find out whether devices are still responding.
6498 * If not remove.
6499 *
6500 * Return nothing.
6501 */
6502static void
6503_scsih_search_responding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
6504{
6505 Mpi2SasDevicePage0_t sas_device_pg0;
6506 Mpi2ConfigReply_t mpi_reply;
6507 u16 ioc_status;
6508 __le64 sas_address;
6509 u16 handle;
6510 u32 device_info;
6511 u16 slot;
6512
6513 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
6514
6515 if (list_empty(&ioc->sas_device_list))
6516 return;
6517
6518 handle = 0xFFFF;
6519 while (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
6520 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
6521 handle))) {
6522 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6523 MPI2_IOCSTATUS_MASK;
6524 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
6525 break;
6526 handle = le16_to_cpu(sas_device_pg0.DevHandle);
6527 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
6528 if (!(_scsih_is_end_device(device_info)))
6529 continue;
6530 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
6531 slot = le16_to_cpu(sas_device_pg0.Slot);
6532 _scsih_mark_responding_sas_device(ioc, sas_address, slot,
6533 handle);
6534 }
6535}
6536
6537/**
6538 * _scsih_mark_responding_raid_device - mark a raid_device as responding
6539 * @ioc: per adapter object
6540 * @wwid: world wide identifier for raid volume
6541 * @handle: device handle
6542 *
6543 * After host reset, find out whether devices are still responding.
6544 * Used in _scsi_remove_unresponsive_raid_devices.
6545 *
6546 * Return nothing.
6547 */
6548static void
6549_scsih_mark_responding_raid_device(struct MPT2SAS_ADAPTER *ioc, u64 wwid,
6550 u16 handle)
6551{
6552 struct MPT2SAS_TARGET *sas_target_priv_data;
6553 struct scsi_target *starget;
6554 struct _raid_device *raid_device;
6555 unsigned long flags;
6556
6557 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6558 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
6559 if (raid_device->wwid == wwid && raid_device->starget) {
6560 starget = raid_device->starget;
6561 if (starget && starget->hostdata) {
6562 sas_target_priv_data = starget->hostdata;
6563 sas_target_priv_data->deleted = 0;
6564 } else
6565 sas_target_priv_data = NULL;
6566 raid_device->responding = 1;
6567 starget_printk(KERN_INFO, raid_device->starget,
6568 "handle(0x%04x), wwid(0x%016llx)\n", handle,
6569 (unsigned long long)raid_device->wwid);
6570 /*
6571 * WARPDRIVE: The handles of the PDs might have changed
6572 * across the host reset so re-initialize the
6573 * required data for Direct IO
6574 */
6575 _scsih_init_warpdrive_properties(ioc, raid_device);
6576 if (raid_device->handle == handle)
6577 goto out;
6578 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
6579 raid_device->handle);
6580 raid_device->handle = handle;
6581 if (sas_target_priv_data)
6582 sas_target_priv_data->handle = handle;
6583 goto out;
6584 }
6585 }
6586 out:
6587 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6588}
6589
6590/**
6591 * _scsih_search_responding_raid_devices -
6592 * @ioc: per adapter object
6593 *
6594 * After host reset, find out whether devices are still responding.
6595 * If not remove.
6596 *
6597 * Return nothing.
6598 */
6599static void
6600_scsih_search_responding_raid_devices(struct MPT2SAS_ADAPTER *ioc)
6601{
6602 Mpi2RaidVolPage1_t volume_pg1;
6603 Mpi2RaidVolPage0_t volume_pg0;
6604 Mpi2RaidPhysDiskPage0_t pd_pg0;
6605 Mpi2ConfigReply_t mpi_reply;
6606 u16 ioc_status;
6607 u16 handle;
6608 u8 phys_disk_num;
6609
6610 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
6611
6612 if (list_empty(&ioc->raid_device_list))
6613 return;
6614
6615 handle = 0xFFFF;
6616 while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
6617 &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
6618 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6619 MPI2_IOCSTATUS_MASK;
6620 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
6621 break;
6622 handle = le16_to_cpu(volume_pg1.DevHandle);
6623
6624 if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
6625 &volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
6626 sizeof(Mpi2RaidVolPage0_t)))
6627 continue;
6628
6629 if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
6630 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
6631 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED)
6632 _scsih_mark_responding_raid_device(ioc,
6633 le64_to_cpu(volume_pg1.WWID), handle);
6634 }
6635
6636 /* refresh the pd_handles */
6637 if (!ioc->is_warpdrive) {
6638 phys_disk_num = 0xFF;
6639 memset(ioc->pd_handles, 0, ioc->pd_handles_sz);
6640 while (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
6641 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
6642 phys_disk_num))) {
6643 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6644 MPI2_IOCSTATUS_MASK;
6645 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
6646 break;
6647 phys_disk_num = pd_pg0.PhysDiskNum;
6648 handle = le16_to_cpu(pd_pg0.DevHandle);
6649 set_bit(handle, ioc->pd_handles);
6650 }
6651 }
6652}
6653
6654/**
6655 * _scsih_mark_responding_expander - mark a expander as responding
6656 * @ioc: per adapter object
6657 * @sas_address: sas address
6658 * @handle:
6659 *
6660 * After host reset, find out whether devices are still responding.
6661 * Used in _scsi_remove_unresponsive_expanders.
6662 *
6663 * Return nothing.
6664 */
6665static void
6666_scsih_mark_responding_expander(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
6667 u16 handle)
6668{
6669 struct _sas_node *sas_expander;
6670 unsigned long flags;
6671 int i;
6672
6673 spin_lock_irqsave(&ioc->sas_node_lock, flags);
6674 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
6675 if (sas_expander->sas_address != sas_address)
6676 continue;
6677 sas_expander->responding = 1;
6678 if (sas_expander->handle == handle)
6679 goto out;
6680 printk(KERN_INFO "\texpander(0x%016llx): handle changed"
6681 " from(0x%04x) to (0x%04x)!!!\n",
6682 (unsigned long long)sas_expander->sas_address,
6683 sas_expander->handle, handle);
6684 sas_expander->handle = handle;
6685 for (i = 0 ; i < sas_expander->num_phys ; i++)
6686 sas_expander->phy[i].handle = handle;
6687 goto out;
6688 }
6689 out:
6690 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
6691}
6692
6693/**
6694 * _scsih_search_responding_expanders -
6695 * @ioc: per adapter object
6696 *
6697 * After host reset, find out whether devices are still responding.
6698 * If not remove.
6699 *
6700 * Return nothing.
6701 */
6702static void
6703_scsih_search_responding_expanders(struct MPT2SAS_ADAPTER *ioc)
6704{
6705 Mpi2ExpanderPage0_t expander_pg0;
6706 Mpi2ConfigReply_t mpi_reply;
6707 u16 ioc_status;
6708 u64 sas_address;
6709 u16 handle;
6710
6711 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
6712
6713 if (list_empty(&ioc->sas_expander_list))
6714 return;
6715
6716 handle = 0xFFFF;
6717 while (!(mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
6718 MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
6719
6720 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6721 MPI2_IOCSTATUS_MASK;
6722 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
6723 break;
6724
6725 handle = le16_to_cpu(expander_pg0.DevHandle);
6726 sas_address = le64_to_cpu(expander_pg0.SASAddress);
6727 printk(KERN_INFO "\texpander present: handle(0x%04x), "
6728 "sas_addr(0x%016llx)\n", handle,
6729 (unsigned long long)sas_address);
6730 _scsih_mark_responding_expander(ioc, sas_address, handle);
6731 }
6732
6733}
6734
6735/**
6736 * _scsih_remove_unresponding_sas_devices - removing unresponding devices
6737 * @ioc: per adapter object
6738 *
6739 * Return nothing.
6740 */
6741static void
6742_scsih_remove_unresponding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
6743{
6744 struct _sas_device *sas_device, *sas_device_next;
6745 struct _sas_node *sas_expander;
6746 struct _raid_device *raid_device, *raid_device_next;
6747
6748
6749 list_for_each_entry_safe(sas_device, sas_device_next,
6750 &ioc->sas_device_list, list) {
6751 if (sas_device->responding) {
6752 sas_device->responding = 0;
6753 continue;
6754 }
6755 if (sas_device->starget)
6756 starget_printk(KERN_INFO, sas_device->starget,
6757 "removing: handle(0x%04x), sas_addr(0x%016llx), "
6758 "enclosure logical id(0x%016llx), slot(%d)\n",
6759 sas_device->handle,
6760 (unsigned long long)sas_device->sas_address,
6761 (unsigned long long)
6762 sas_device->enclosure_logical_id,
6763 sas_device->slot);
6764 _scsih_remove_device(ioc, sas_device);
6765 }
6766
6767 list_for_each_entry_safe(raid_device, raid_device_next,
6768 &ioc->raid_device_list, list) {
6769 if (raid_device->responding) {
6770 raid_device->responding = 0;
6771 continue;
6772 }
6773 if (raid_device->starget) {
6774 starget_printk(KERN_INFO, raid_device->starget,
6775 "removing: handle(0x%04x), wwid(0x%016llx)\n",
6776 raid_device->handle,
6777 (unsigned long long)raid_device->wwid);
6778 scsi_remove_target(&raid_device->starget->dev);
6779 }
6780 _scsih_raid_device_remove(ioc, raid_device);
6781 }
6782
6783 retry_expander_search:
6784 sas_expander = NULL;
6785 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
6786 if (sas_expander->responding) {
6787 sas_expander->responding = 0;
6788 continue;
6789 }
6790 mpt2sas_expander_remove(ioc, sas_expander->sas_address);
6791 goto retry_expander_search;
6792 }
6793}
6794
6795/**
6796 * _scsih_hide_unhide_sas_devices - add/remove device to/from OS
6797 * @ioc: per adapter object
6798 *
6799 * Return nothing.
6800 */
6801static void
6802_scsih_hide_unhide_sas_devices(struct MPT2SAS_ADAPTER *ioc)
6803{
6804 struct _sas_device *sas_device, *sas_device_next;
6805
6806 if (!ioc->is_warpdrive || ioc->mfg_pg10_hide_flag !=
6807 MFG_PAGE10_HIDE_IF_VOL_PRESENT)
6808 return;
6809
6810 if (ioc->hide_drives) {
6811 if (_scsih_get_num_volumes(ioc))
6812 return;
6813 ioc->hide_drives = 0;
6814 list_for_each_entry_safe(sas_device, sas_device_next,
6815 &ioc->sas_device_list, list) {
6816 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
6817 sas_device->sas_address_parent)) {
6818 _scsih_sas_device_remove(ioc, sas_device);
6819 } else if (!sas_device->starget) {
6820 mpt2sas_transport_port_remove(ioc,
6821 sas_device->sas_address,
6822 sas_device->sas_address_parent);
6823 _scsih_sas_device_remove(ioc, sas_device);
6824 }
6825 }
6826 } else {
6827 if (!_scsih_get_num_volumes(ioc))
6828 return;
6829 ioc->hide_drives = 1;
6830 list_for_each_entry_safe(sas_device, sas_device_next,
6831 &ioc->sas_device_list, list) {
6832 mpt2sas_transport_port_remove(ioc,
6833 sas_device->sas_address,
6834 sas_device->sas_address_parent);
6835 }
6836 }
6837}
6838
6839/**
6840 * mpt2sas_scsih_reset_handler - reset callback handler (for scsih)
6841 * @ioc: per adapter object
6842 * @reset_phase: phase
6843 *
6844 * The handler for doing any required cleanup or initialization.
6845 *
6846 * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
6847 * MPT2_IOC_DONE_RESET
6848 *
6849 * Return nothing.
6850 */
6851void
6852mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
6853{
6854 switch (reset_phase) {
6855 case MPT2_IOC_PRE_RESET:
6856 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
6857 "MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
6858 break;
6859 case MPT2_IOC_AFTER_RESET:
6860 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
6861 "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
6862 if (ioc->scsih_cmds.status & MPT2_CMD_PENDING) {
6863 ioc->scsih_cmds.status |= MPT2_CMD_RESET;
6864 mpt2sas_base_free_smid(ioc, ioc->scsih_cmds.smid);
6865 complete(&ioc->scsih_cmds.done);
6866 }
6867 if (ioc->tm_cmds.status & MPT2_CMD_PENDING) {
6868 ioc->tm_cmds.status |= MPT2_CMD_RESET;
6869 mpt2sas_base_free_smid(ioc, ioc->tm_cmds.smid);
6870 complete(&ioc->tm_cmds.done);
6871 }
6872 _scsih_fw_event_cleanup_queue(ioc);
6873 _scsih_flush_running_cmds(ioc);
6874 _scsih_queue_rescan(ioc);
6875 break;
6876 case MPT2_IOC_DONE_RESET:
6877 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
6878 "MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
6879 _scsih_sas_host_refresh(ioc);
6880 _scsih_prep_device_scan(ioc);
6881 _scsih_search_responding_sas_devices(ioc);
6882 _scsih_search_responding_raid_devices(ioc);
6883 _scsih_search_responding_expanders(ioc);
6884 break;
6885 }
6886}
6887
6888/**
6889 * _firmware_event_work - delayed task for processing firmware events
6890 * @ioc: per adapter object
6891 * @work: equal to the fw_event_work object
6892 * Context: user.
6893 *
6894 * Return nothing.
6895 */
6896static void
6897_firmware_event_work(struct work_struct *work)
6898{
6899 struct fw_event_work *fw_event = container_of(work,
6900 struct fw_event_work, delayed_work.work);
6901 unsigned long flags;
6902 struct MPT2SAS_ADAPTER *ioc = fw_event->ioc;
6903
6904 /* the queue is being flushed so ignore this event */
6905 if (ioc->remove_host || fw_event->cancel_pending_work ||
6906 ioc->pci_error_recovery) {
6907 _scsih_fw_event_free(ioc, fw_event);
6908 return;
6909 }
6910
6911 if (fw_event->event == MPT2SAS_RESCAN_AFTER_HOST_RESET) {
6912 _scsih_fw_event_free(ioc, fw_event);
6913 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
6914 if (ioc->shost_recovery) {
6915 init_completion(&ioc->shost_recovery_done);
6916 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock,
6917 flags);
6918 wait_for_completion(&ioc->shost_recovery_done);
6919 } else
6920 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock,
6921 flags);
6922 _scsih_remove_unresponding_sas_devices(ioc);
6923 _scsih_hide_unhide_sas_devices(ioc);
6924 return;
6925 }
6926
6927 switch (fw_event->event) {
6928 case MPT2SAS_TURN_ON_FAULT_LED:
6929 _scsih_turn_on_fault_led(ioc, fw_event->device_handle);
6930 break;
6931 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
6932 _scsih_sas_topology_change_event(ioc, fw_event);
6933 break;
6934 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
6935 _scsih_sas_device_status_change_event(ioc,
6936 fw_event);
6937 break;
6938 case MPI2_EVENT_SAS_DISCOVERY:
6939 _scsih_sas_discovery_event(ioc,
6940 fw_event);
6941 break;
6942 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
6943 _scsih_sas_broadcast_primative_event(ioc,
6944 fw_event);
6945 break;
6946 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
6947 _scsih_sas_enclosure_dev_status_change_event(ioc,
6948 fw_event);
6949 break;
6950 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
6951 _scsih_sas_ir_config_change_event(ioc, fw_event);
6952 break;
6953 case MPI2_EVENT_IR_VOLUME:
6954 _scsih_sas_ir_volume_event(ioc, fw_event);
6955 break;
6956 case MPI2_EVENT_IR_PHYSICAL_DISK:
6957 _scsih_sas_ir_physical_disk_event(ioc, fw_event);
6958 break;
6959 case MPI2_EVENT_IR_OPERATION_STATUS:
6960 _scsih_sas_ir_operation_status_event(ioc, fw_event);
6961 break;
6962 }
6963 _scsih_fw_event_free(ioc, fw_event);
6964}
6965
6966/**
6967 * mpt2sas_scsih_event_callback - firmware event handler (called at ISR time)
6968 * @ioc: per adapter object
6969 * @msix_index: MSIX table index supplied by the OS
6970 * @reply: reply message frame(lower 32bit addr)
6971 * Context: interrupt.
6972 *
6973 * This function merely adds a new work task into ioc->firmware_event_thread.
6974 * The tasks are worked from _firmware_event_work in user context.
6975 *
6976 * Return 1 meaning mf should be freed from _base_interrupt
6977 * 0 means the mf is freed from this function.
6978 */
6979u8
6980mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index,
6981 u32 reply)
6982{
6983 struct fw_event_work *fw_event;
6984 Mpi2EventNotificationReply_t *mpi_reply;
6985 u16 event;
6986 u16 sz;
6987
6988 /* events turned off due to host reset or driver unloading */
6989 if (ioc->remove_host || ioc->pci_error_recovery)
6990 return 1;
6991
6992 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
6993 event = le16_to_cpu(mpi_reply->Event);
6994
6995 switch (event) {
6996 /* handle these */
6997 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
6998 {
6999 Mpi2EventDataSasBroadcastPrimitive_t *baen_data =
7000 (Mpi2EventDataSasBroadcastPrimitive_t *)
7001 mpi_reply->EventData;
7002
7003 if (baen_data->Primitive !=
7004 MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT)
7005 return 1;
7006
7007 if (ioc->broadcast_aen_busy) {
7008 ioc->broadcast_aen_pending++;
7009 return 1;
7010 } else
7011 ioc->broadcast_aen_busy = 1;
7012 break;
7013 }
7014
7015 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
7016 _scsih_check_topo_delete_events(ioc,
7017 (Mpi2EventDataSasTopologyChangeList_t *)
7018 mpi_reply->EventData);
7019 break;
7020 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
7021 _scsih_check_ir_config_unhide_events(ioc,
7022 (Mpi2EventDataIrConfigChangeList_t *)
7023 mpi_reply->EventData);
7024 break;
7025 case MPI2_EVENT_IR_VOLUME:
7026 _scsih_check_volume_delete_events(ioc,
7027 (Mpi2EventDataIrVolume_t *)
7028 mpi_reply->EventData);
7029 break;
7030 case MPI2_EVENT_LOG_ENTRY_ADDED:
7031 {
7032 Mpi2EventDataLogEntryAdded_t *log_entry;
7033 u32 *log_code;
7034
7035 if (!ioc->is_warpdrive)
7036 break;
7037
7038 log_entry = (Mpi2EventDataLogEntryAdded_t *)
7039 mpi_reply->EventData;
7040 log_code = (u32 *)log_entry->LogData;
7041
7042 if (le16_to_cpu(log_entry->LogEntryQualifier)
7043 != MPT2_WARPDRIVE_LOGENTRY)
7044 break;
7045
7046 switch (le32_to_cpu(*log_code)) {
7047 case MPT2_WARPDRIVE_LC_SSDT:
7048 printk(MPT2SAS_WARN_FMT "WarpDrive Warning: "
7049 "IO Throttling has occurred in the WarpDrive "
7050 "subsystem. Check WarpDrive documentation for "
7051 "additional details.\n", ioc->name);
7052 break;
7053 case MPT2_WARPDRIVE_LC_SSDLW:
7054 printk(MPT2SAS_WARN_FMT "WarpDrive Warning: "
7055 "Program/Erase Cycles for the WarpDrive subsystem "
7056 "in degraded range. Check WarpDrive documentation "
7057 "for additional details.\n", ioc->name);
7058 break;
7059 case MPT2_WARPDRIVE_LC_SSDLF:
7060 printk(MPT2SAS_ERR_FMT "WarpDrive Fatal Error: "
7061 "There are no Program/Erase Cycles for the "
7062 "WarpDrive subsystem. The storage device will be "
7063 "in read-only mode. Check WarpDrive documentation "
7064 "for additional details.\n", ioc->name);
7065 break;
7066 case MPT2_WARPDRIVE_LC_BRMF:
7067 printk(MPT2SAS_ERR_FMT "WarpDrive Fatal Error: "
7068 "The Backup Rail Monitor has failed on the "
7069 "WarpDrive subsystem. Check WarpDrive "
7070 "documentation for additional details.\n",
7071 ioc->name);
7072 break;
7073 }
7074
7075 break;
7076 }
7077 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
7078 case MPI2_EVENT_IR_OPERATION_STATUS:
7079 case MPI2_EVENT_SAS_DISCOVERY:
7080 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
7081 case MPI2_EVENT_IR_PHYSICAL_DISK:
7082 break;
7083
7084 default: /* ignore the rest */
7085 return 1;
7086 }
7087
7088 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
7089 if (!fw_event) {
7090 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
7091 ioc->name, __FILE__, __LINE__, __func__);
7092 return 1;
7093 }
7094 sz = le16_to_cpu(mpi_reply->EventDataLength) * 4;
7095 fw_event->event_data = kzalloc(sz, GFP_ATOMIC);
7096 if (!fw_event->event_data) {
7097 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
7098 ioc->name, __FILE__, __LINE__, __func__);
7099 kfree(fw_event);
7100 return 1;
7101 }
7102
7103 memcpy(fw_event->event_data, mpi_reply->EventData,
7104 sz);
7105 fw_event->ioc = ioc;
7106 fw_event->VF_ID = mpi_reply->VF_ID;
7107 fw_event->VP_ID = mpi_reply->VP_ID;
7108 fw_event->event = event;
7109 _scsih_fw_event_add(ioc, fw_event);
7110 return 1;
7111}
7112
7113/* shost template */
7114static struct scsi_host_template scsih_driver_template = {
7115 .module = THIS_MODULE,
7116 .name = "Fusion MPT SAS Host",
7117 .proc_name = MPT2SAS_DRIVER_NAME,
7118 .queuecommand = _scsih_qcmd,
7119 .target_alloc = _scsih_target_alloc,
7120 .slave_alloc = _scsih_slave_alloc,
7121 .slave_configure = _scsih_slave_configure,
7122 .target_destroy = _scsih_target_destroy,
7123 .slave_destroy = _scsih_slave_destroy,
7124 .change_queue_depth = _scsih_change_queue_depth,
7125 .change_queue_type = _scsih_change_queue_type,
7126 .eh_abort_handler = _scsih_abort,
7127 .eh_device_reset_handler = _scsih_dev_reset,
7128 .eh_target_reset_handler = _scsih_target_reset,
7129 .eh_host_reset_handler = _scsih_host_reset,
7130 .bios_param = _scsih_bios_param,
7131 .can_queue = 1,
7132 .this_id = -1,
7133 .sg_tablesize = MPT2SAS_SG_DEPTH,
7134 .max_sectors = 8192,
7135 .cmd_per_lun = 7,
7136 .use_clustering = ENABLE_CLUSTERING,
7137 .shost_attrs = mpt2sas_host_attrs,
7138 .sdev_attrs = mpt2sas_dev_attrs,
7139};
7140
7141/**
7142 * _scsih_expander_node_remove - removing expander device from list.
7143 * @ioc: per adapter object
7144 * @sas_expander: the sas_device object
7145 * Context: Calling function should acquire ioc->sas_node_lock.
7146 *
7147 * Removing object and freeing associated memory from the
7148 * ioc->sas_expander_list.
7149 *
7150 * Return nothing.
7151 */
7152static void
7153_scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
7154 struct _sas_node *sas_expander)
7155{
7156 struct _sas_port *mpt2sas_port, *next;
7157
7158 /* remove sibling ports attached to this expander */
7159 list_for_each_entry_safe(mpt2sas_port, next,
7160 &sas_expander->sas_port_list, port_list) {
7161 if (ioc->shost_recovery)
7162 return;
7163 if (mpt2sas_port->remote_identify.device_type ==
7164 SAS_END_DEVICE)
7165 mpt2sas_device_remove(ioc,
7166 mpt2sas_port->remote_identify.sas_address);
7167 else if (mpt2sas_port->remote_identify.device_type ==
7168 SAS_EDGE_EXPANDER_DEVICE ||
7169 mpt2sas_port->remote_identify.device_type ==
7170 SAS_FANOUT_EXPANDER_DEVICE)
7171 mpt2sas_expander_remove(ioc,
7172 mpt2sas_port->remote_identify.sas_address);
7173 }
7174
7175 mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
7176 sas_expander->sas_address_parent);
7177
7178 printk(MPT2SAS_INFO_FMT "expander_remove: handle"
7179 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name,
7180 sas_expander->handle, (unsigned long long)
7181 sas_expander->sas_address);
7182
7183 kfree(sas_expander->phy);
7184 kfree(sas_expander);
7185}
7186
7187/**
7188 * _scsih_ir_shutdown - IR shutdown notification
7189 * @ioc: per adapter object
7190 *
7191 * Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
7192 * the host system is shutting down.
7193 *
7194 * Return nothing.
7195 */
7196static void
7197_scsih_ir_shutdown(struct MPT2SAS_ADAPTER *ioc)
7198{
7199 Mpi2RaidActionRequest_t *mpi_request;
7200 Mpi2RaidActionReply_t *mpi_reply;
7201 u16 smid;
7202
7203 /* is IR firmware build loaded ? */
7204 if (!ioc->ir_firmware)
7205 return;
7206
7207 /* are there any volumes ? */
7208 if (list_empty(&ioc->raid_device_list))
7209 return;
7210
7211 mutex_lock(&ioc->scsih_cmds.mutex);
7212
7213 if (ioc->scsih_cmds.status != MPT2_CMD_NOT_USED) {
7214 printk(MPT2SAS_ERR_FMT "%s: scsih_cmd in use\n",
7215 ioc->name, __func__);
7216 goto out;
7217 }
7218 ioc->scsih_cmds.status = MPT2_CMD_PENDING;
7219
7220 smid = mpt2sas_base_get_smid(ioc, ioc->scsih_cb_idx);
7221 if (!smid) {
7222 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
7223 ioc->name, __func__);
7224 ioc->scsih_cmds.status = MPT2_CMD_NOT_USED;
7225 goto out;
7226 }
7227
7228 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
7229 ioc->scsih_cmds.smid = smid;
7230 memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t));
7231
7232 mpi_request->Function = MPI2_FUNCTION_RAID_ACTION;
7233 mpi_request->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;
7234
7235 if (!ioc->hide_ir_msg)
7236 printk(MPT2SAS_INFO_FMT "IR shutdown (sending)\n", ioc->name);
7237 init_completion(&ioc->scsih_cmds.done);
7238 mpt2sas_base_put_smid_default(ioc, smid);
7239 wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
7240
7241 if (!(ioc->scsih_cmds.status & MPT2_CMD_COMPLETE)) {
7242 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
7243 ioc->name, __func__);
7244 goto out;
7245 }
7246
7247 if (ioc->scsih_cmds.status & MPT2_CMD_REPLY_VALID) {
7248 mpi_reply = ioc->scsih_cmds.reply;
7249
7250 if (!ioc->hide_ir_msg)
7251 printk(MPT2SAS_INFO_FMT "IR shutdown (complete): "
7252 "ioc_status(0x%04x), loginfo(0x%08x)\n",
7253 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
7254 le32_to_cpu(mpi_reply->IOCLogInfo));
7255 }
7256
7257 out:
7258 ioc->scsih_cmds.status = MPT2_CMD_NOT_USED;
7259 mutex_unlock(&ioc->scsih_cmds.mutex);
7260}
7261
7262/**
7263 * _scsih_shutdown - routine call during system shutdown
7264 * @pdev: PCI device struct
7265 *
7266 * Return nothing.
7267 */
7268static void
7269_scsih_shutdown(struct pci_dev *pdev)
7270{
7271 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7272 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7273 struct workqueue_struct *wq;
7274 unsigned long flags;
7275
7276 ioc->remove_host = 1;
7277 _scsih_fw_event_cleanup_queue(ioc);
7278
7279 spin_lock_irqsave(&ioc->fw_event_lock, flags);
7280 wq = ioc->firmware_event_thread;
7281 ioc->firmware_event_thread = NULL;
7282 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
7283 if (wq)
7284 destroy_workqueue(wq);
7285
7286 _scsih_ir_shutdown(ioc);
7287 mpt2sas_base_detach(ioc);
7288}
7289
7290/**
7291 * _scsih_remove - detach and remove add host
7292 * @pdev: PCI device struct
7293 *
7294 * Routine called when unloading the driver.
7295 * Return nothing.
7296 */
7297static void __devexit
7298_scsih_remove(struct pci_dev *pdev)
7299{
7300 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7301 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7302 struct _sas_port *mpt2sas_port, *next_port;
7303 struct _raid_device *raid_device, *next;
7304 struct MPT2SAS_TARGET *sas_target_priv_data;
7305 struct workqueue_struct *wq;
7306 unsigned long flags;
7307
7308 ioc->remove_host = 1;
7309 _scsih_fw_event_cleanup_queue(ioc);
7310
7311 spin_lock_irqsave(&ioc->fw_event_lock, flags);
7312 wq = ioc->firmware_event_thread;
7313 ioc->firmware_event_thread = NULL;
7314 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
7315 if (wq)
7316 destroy_workqueue(wq);
7317
7318 /* release all the volumes */
7319 _scsih_ir_shutdown(ioc);
7320 list_for_each_entry_safe(raid_device, next, &ioc->raid_device_list,
7321 list) {
7322 if (raid_device->starget) {
7323 sas_target_priv_data =
7324 raid_device->starget->hostdata;
7325 sas_target_priv_data->deleted = 1;
7326 scsi_remove_target(&raid_device->starget->dev);
7327 }
7328 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), wwid"
7329 "(0x%016llx)\n", ioc->name, raid_device->handle,
7330 (unsigned long long) raid_device->wwid);
7331 _scsih_raid_device_remove(ioc, raid_device);
7332 }
7333
7334 /* free ports attached to the sas_host */
7335 list_for_each_entry_safe(mpt2sas_port, next_port,
7336 &ioc->sas_hba.sas_port_list, port_list) {
7337 if (mpt2sas_port->remote_identify.device_type ==
7338 SAS_END_DEVICE)
7339 mpt2sas_device_remove(ioc,
7340 mpt2sas_port->remote_identify.sas_address);
7341 else if (mpt2sas_port->remote_identify.device_type ==
7342 SAS_EDGE_EXPANDER_DEVICE ||
7343 mpt2sas_port->remote_identify.device_type ==
7344 SAS_FANOUT_EXPANDER_DEVICE)
7345 mpt2sas_expander_remove(ioc,
7346 mpt2sas_port->remote_identify.sas_address);
7347 }
7348
7349 /* free phys attached to the sas_host */
7350 if (ioc->sas_hba.num_phys) {
7351 kfree(ioc->sas_hba.phy);
7352 ioc->sas_hba.phy = NULL;
7353 ioc->sas_hba.num_phys = 0;
7354 }
7355
7356 sas_remove_host(shost);
7357 list_del(&ioc->list);
7358 scsi_remove_host(shost);
7359 scsi_host_put(shost);
7360}
7361
7362/**
7363 * _scsih_probe_boot_devices - reports 1st device
7364 * @ioc: per adapter object
7365 *
7366 * If specified in bios page 2, this routine reports the 1st
7367 * device scsi-ml or sas transport for persistent boot device
7368 * purposes. Please refer to function _scsih_determine_boot_device()
7369 */
7370static void
7371_scsih_probe_boot_devices(struct MPT2SAS_ADAPTER *ioc)
7372{
7373 u8 is_raid;
7374 void *device;
7375 struct _sas_device *sas_device;
7376 struct _raid_device *raid_device;
7377 u16 handle;
7378 u64 sas_address_parent;
7379 u64 sas_address;
7380 unsigned long flags;
7381 int rc;
7382
7383 device = NULL;
7384 if (ioc->req_boot_device.device) {
7385 device = ioc->req_boot_device.device;
7386 is_raid = ioc->req_boot_device.is_raid;
7387 } else if (ioc->req_alt_boot_device.device) {
7388 device = ioc->req_alt_boot_device.device;
7389 is_raid = ioc->req_alt_boot_device.is_raid;
7390 } else if (ioc->current_boot_device.device) {
7391 device = ioc->current_boot_device.device;
7392 is_raid = ioc->current_boot_device.is_raid;
7393 }
7394
7395 if (!device)
7396 return;
7397
7398 if (is_raid) {
7399 raid_device = device;
7400 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
7401 raid_device->id, 0);
7402 if (rc)
7403 _scsih_raid_device_remove(ioc, raid_device);
7404 } else {
7405 sas_device = device;
7406 handle = sas_device->handle;
7407 sas_address_parent = sas_device->sas_address_parent;
7408 sas_address = sas_device->sas_address;
7409 spin_lock_irqsave(&ioc->sas_device_lock, flags);
7410 list_move_tail(&sas_device->list, &ioc->sas_device_list);
7411 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
7412
7413 if (ioc->hide_drives)
7414 return;
7415 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
7416 sas_device->sas_address_parent)) {
7417 _scsih_sas_device_remove(ioc, sas_device);
7418 } else if (!sas_device->starget) {
7419 mpt2sas_transport_port_remove(ioc, sas_address,
7420 sas_address_parent);
7421 _scsih_sas_device_remove(ioc, sas_device);
7422 }
7423 }
7424}
7425
7426/**
7427 * _scsih_probe_raid - reporting raid volumes to scsi-ml
7428 * @ioc: per adapter object
7429 *
7430 * Called during initial loading of the driver.
7431 */
7432static void
7433_scsih_probe_raid(struct MPT2SAS_ADAPTER *ioc)
7434{
7435 struct _raid_device *raid_device, *raid_next;
7436 int rc;
7437
7438 list_for_each_entry_safe(raid_device, raid_next,
7439 &ioc->raid_device_list, list) {
7440 if (raid_device->starget)
7441 continue;
7442 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
7443 raid_device->id, 0);
7444 if (rc)
7445 _scsih_raid_device_remove(ioc, raid_device);
7446 }
7447}
7448
7449/**
7450 * _scsih_probe_sas - reporting sas devices to sas transport
7451 * @ioc: per adapter object
7452 *
7453 * Called during initial loading of the driver.
7454 */
7455static void
7456_scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc)
7457{
7458 struct _sas_device *sas_device, *next;
7459 unsigned long flags;
7460
7461 /* SAS Device List */
7462 list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list,
7463 list) {
7464 spin_lock_irqsave(&ioc->sas_device_lock, flags);
7465 list_move_tail(&sas_device->list, &ioc->sas_device_list);
7466 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
7467
7468 if (ioc->hide_drives)
7469 continue;
7470
7471 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
7472 sas_device->sas_address_parent)) {
7473 _scsih_sas_device_remove(ioc, sas_device);
7474 } else if (!sas_device->starget) {
7475 mpt2sas_transport_port_remove(ioc,
7476 sas_device->sas_address,
7477 sas_device->sas_address_parent);
7478 _scsih_sas_device_remove(ioc, sas_device);
7479 }
7480 }
7481}
7482
7483/**
7484 * _scsih_probe_devices - probing for devices
7485 * @ioc: per adapter object
7486 *
7487 * Called during initial loading of the driver.
7488 */
7489static void
7490_scsih_probe_devices(struct MPT2SAS_ADAPTER *ioc)
7491{
7492 u16 volume_mapping_flags =
7493 le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) &
7494 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
7495
7496 if (!(ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR))
7497 return; /* return when IOC doesn't support initiator mode */
7498
7499 _scsih_probe_boot_devices(ioc);
7500
7501 if (ioc->ir_firmware) {
7502 if ((volume_mapping_flags &
7503 MPI2_IOCPAGE8_IRFLAGS_HIGH_VOLUME_MAPPING)) {
7504 _scsih_probe_sas(ioc);
7505 _scsih_probe_raid(ioc);
7506 } else {
7507 _scsih_probe_raid(ioc);
7508 _scsih_probe_sas(ioc);
7509 }
7510 } else
7511 _scsih_probe_sas(ioc);
7512}
7513
7514/**
7515 * _scsih_probe - attach and add scsi host
7516 * @pdev: PCI device struct
7517 * @id: pci device id
7518 *
7519 * Returns 0 success, anything else error.
7520 */
7521static int
7522_scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
7523{
7524 struct MPT2SAS_ADAPTER *ioc;
7525 struct Scsi_Host *shost;
7526
7527 shost = scsi_host_alloc(&scsih_driver_template,
7528 sizeof(struct MPT2SAS_ADAPTER));
7529 if (!shost)
7530 return -ENODEV;
7531
7532 /* init local params */
7533 ioc = shost_priv(shost);
7534 memset(ioc, 0, sizeof(struct MPT2SAS_ADAPTER));
7535 INIT_LIST_HEAD(&ioc->list);
7536 list_add_tail(&ioc->list, &mpt2sas_ioc_list);
7537 ioc->shost = shost;
7538 ioc->id = mpt_ids++;
7539 sprintf(ioc->name, "%s%d", MPT2SAS_DRIVER_NAME, ioc->id);
7540 ioc->pdev = pdev;
7541 if (id->device == MPI2_MFGPAGE_DEVID_SSS6200) {
7542 ioc->is_warpdrive = 1;
7543 ioc->hide_ir_msg = 1;
7544 } else
7545 ioc->mfg_pg10_hide_flag = MFG_PAGE10_EXPOSE_ALL_DISKS;
7546 ioc->scsi_io_cb_idx = scsi_io_cb_idx;
7547 ioc->tm_cb_idx = tm_cb_idx;
7548 ioc->ctl_cb_idx = ctl_cb_idx;
7549 ioc->base_cb_idx = base_cb_idx;
7550 ioc->transport_cb_idx = transport_cb_idx;
7551 ioc->scsih_cb_idx = scsih_cb_idx;
7552 ioc->config_cb_idx = config_cb_idx;
7553 ioc->tm_tr_cb_idx = tm_tr_cb_idx;
7554 ioc->tm_tr_volume_cb_idx = tm_tr_volume_cb_idx;
7555 ioc->tm_sas_control_cb_idx = tm_sas_control_cb_idx;
7556 ioc->logging_level = logging_level;
7557 /* misc semaphores and spin locks */
7558 mutex_init(&ioc->reset_in_progress_mutex);
7559 spin_lock_init(&ioc->ioc_reset_in_progress_lock);
7560 spin_lock_init(&ioc->scsi_lookup_lock);
7561 spin_lock_init(&ioc->sas_device_lock);
7562 spin_lock_init(&ioc->sas_node_lock);
7563 spin_lock_init(&ioc->fw_event_lock);
7564 spin_lock_init(&ioc->raid_device_lock);
7565
7566 INIT_LIST_HEAD(&ioc->sas_device_list);
7567 INIT_LIST_HEAD(&ioc->sas_device_init_list);
7568 INIT_LIST_HEAD(&ioc->sas_expander_list);
7569 INIT_LIST_HEAD(&ioc->fw_event_list);
7570 INIT_LIST_HEAD(&ioc->raid_device_list);
7571 INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list);
7572 INIT_LIST_HEAD(&ioc->delayed_tr_list);
7573 INIT_LIST_HEAD(&ioc->delayed_tr_volume_list);
7574
7575 /* init shost parameters */
7576 shost->max_cmd_len = 32;
7577 shost->max_lun = max_lun;
7578 shost->transportt = mpt2sas_transport_template;
7579 shost->unique_id = ioc->id;
7580
7581 if (max_sectors != 0xFFFF) {
7582 if (max_sectors < 64) {
7583 shost->max_sectors = 64;
7584 printk(MPT2SAS_WARN_FMT "Invalid value %d passed "
7585 "for max_sectors, range is 64 to 8192. Assigning "
7586 "value of 64.\n", ioc->name, max_sectors);
7587 } else if (max_sectors > 8192) {
7588 shost->max_sectors = 8192;
7589 printk(MPT2SAS_WARN_FMT "Invalid value %d passed "
7590 "for max_sectors, range is 64 to 8192. Assigning "
7591 "default value of 8192.\n", ioc->name,
7592 max_sectors);
7593 } else {
7594 shost->max_sectors = max_sectors & 0xFFFE;
7595 printk(MPT2SAS_INFO_FMT "The max_sectors value is "
7596 "set to %d\n", ioc->name, shost->max_sectors);
7597 }
7598 }
7599
7600 if ((scsi_add_host(shost, &pdev->dev))) {
7601 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
7602 ioc->name, __FILE__, __LINE__, __func__);
7603 list_del(&ioc->list);
7604 goto out_add_shost_fail;
7605 }
7606
7607 scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
7608 | SHOST_DIF_TYPE2_PROTECTION | SHOST_DIF_TYPE3_PROTECTION);
7609 scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC);
7610
7611 /* event thread */
7612 snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
7613 "fw_event%d", ioc->id);
7614 ioc->firmware_event_thread = create_singlethread_workqueue(
7615 ioc->firmware_event_name);
7616 if (!ioc->firmware_event_thread) {
7617 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
7618 ioc->name, __FILE__, __LINE__, __func__);
7619 goto out_thread_fail;
7620 }
7621
7622 ioc->wait_for_port_enable_to_complete = 1;
7623 if ((mpt2sas_base_attach(ioc))) {
7624 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
7625 ioc->name, __FILE__, __LINE__, __func__);
7626 goto out_attach_fail;
7627 }
7628
7629 ioc->wait_for_port_enable_to_complete = 0;
7630 if (ioc->is_warpdrive) {
7631 if (ioc->mfg_pg10_hide_flag == MFG_PAGE10_EXPOSE_ALL_DISKS)
7632 ioc->hide_drives = 0;
7633 else if (ioc->mfg_pg10_hide_flag == MFG_PAGE10_HIDE_ALL_DISKS)
7634 ioc->hide_drives = 1;
7635 else {
7636 if (_scsih_get_num_volumes(ioc))
7637 ioc->hide_drives = 1;
7638 else
7639 ioc->hide_drives = 0;
7640 }
7641 } else
7642 ioc->hide_drives = 0;
7643
7644 _scsih_probe_devices(ioc);
7645 return 0;
7646
7647 out_attach_fail:
7648 destroy_workqueue(ioc->firmware_event_thread);
7649 out_thread_fail:
7650 list_del(&ioc->list);
7651 scsi_remove_host(shost);
7652 out_add_shost_fail:
7653 return -ENODEV;
7654}
7655
7656#ifdef CONFIG_PM
7657/**
7658 * _scsih_suspend - power management suspend main entry point
7659 * @pdev: PCI device struct
7660 * @state: PM state change to (usually PCI_D3)
7661 *
7662 * Returns 0 success, anything else error.
7663 */
7664static int
7665_scsih_suspend(struct pci_dev *pdev, pm_message_t state)
7666{
7667 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7668 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7669 pci_power_t device_state;
7670
7671 mpt2sas_base_stop_watchdog(ioc);
7672 scsi_block_requests(shost);
7673 device_state = pci_choose_state(pdev, state);
7674 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, entering "
7675 "operating state [D%d]\n", ioc->name, pdev,
7676 pci_name(pdev), device_state);
7677
7678 mpt2sas_base_free_resources(ioc);
7679 pci_save_state(pdev);
7680 pci_disable_device(pdev);
7681 pci_set_power_state(pdev, device_state);
7682 return 0;
7683}
7684
7685/**
7686 * _scsih_resume - power management resume main entry point
7687 * @pdev: PCI device struct
7688 *
7689 * Returns 0 success, anything else error.
7690 */
7691static int
7692_scsih_resume(struct pci_dev *pdev)
7693{
7694 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7695 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7696 pci_power_t device_state = pdev->current_state;
7697 int r;
7698
7699 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, previous "
7700 "operating state [D%d]\n", ioc->name, pdev,
7701 pci_name(pdev), device_state);
7702
7703 pci_set_power_state(pdev, PCI_D0);
7704 pci_enable_wake(pdev, PCI_D0, 0);
7705 pci_restore_state(pdev);
7706 ioc->pdev = pdev;
7707 r = mpt2sas_base_map_resources(ioc);
7708 if (r)
7709 return r;
7710
7711 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, SOFT_RESET);
7712 scsi_unblock_requests(shost);
7713 mpt2sas_base_start_watchdog(ioc);
7714 return 0;
7715}
7716#endif /* CONFIG_PM */
7717
7718/**
7719 * _scsih_pci_error_detected - Called when a PCI error is detected.
7720 * @pdev: PCI device struct
7721 * @state: PCI channel state
7722 *
7723 * Description: Called when a PCI error is detected.
7724 *
7725 * Return value:
7726 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
7727 */
7728static pci_ers_result_t
7729_scsih_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
7730{
7731 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7732 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7733
7734 printk(MPT2SAS_INFO_FMT "PCI error: detected callback, state(%d)!!\n",
7735 ioc->name, state);
7736
7737 switch (state) {
7738 case pci_channel_io_normal:
7739 return PCI_ERS_RESULT_CAN_RECOVER;
7740 case pci_channel_io_frozen:
7741 /* Fatal error, prepare for slot reset */
7742 ioc->pci_error_recovery = 1;
7743 scsi_block_requests(ioc->shost);
7744 mpt2sas_base_stop_watchdog(ioc);
7745 mpt2sas_base_free_resources(ioc);
7746 return PCI_ERS_RESULT_NEED_RESET;
7747 case pci_channel_io_perm_failure:
7748 /* Permanent error, prepare for device removal */
7749 ioc->pci_error_recovery = 1;
7750 mpt2sas_base_stop_watchdog(ioc);
7751 _scsih_flush_running_cmds(ioc);
7752 return PCI_ERS_RESULT_DISCONNECT;
7753 }
7754 return PCI_ERS_RESULT_NEED_RESET;
7755}
7756
7757/**
7758 * _scsih_pci_slot_reset - Called when PCI slot has been reset.
7759 * @pdev: PCI device struct
7760 *
7761 * Description: This routine is called by the pci error recovery
7762 * code after the PCI slot has been reset, just before we
7763 * should resume normal operations.
7764 */
7765static pci_ers_result_t
7766_scsih_pci_slot_reset(struct pci_dev *pdev)
7767{
7768 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7769 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7770 int rc;
7771
7772 printk(MPT2SAS_INFO_FMT "PCI error: slot reset callback!!\n",
7773 ioc->name);
7774
7775 ioc->pci_error_recovery = 0;
7776 ioc->pdev = pdev;
7777 pci_restore_state(pdev);
7778 rc = mpt2sas_base_map_resources(ioc);
7779 if (rc)
7780 return PCI_ERS_RESULT_DISCONNECT;
7781
7782
7783 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
7784 FORCE_BIG_HAMMER);
7785
7786 printk(MPT2SAS_WARN_FMT "hard reset: %s\n", ioc->name,
7787 (rc == 0) ? "success" : "failed");
7788
7789 if (!rc)
7790 return PCI_ERS_RESULT_RECOVERED;
7791 else
7792 return PCI_ERS_RESULT_DISCONNECT;
7793}
7794
7795/**
7796 * _scsih_pci_resume() - resume normal ops after PCI reset
7797 * @pdev: pointer to PCI device
7798 *
7799 * Called when the error recovery driver tells us that its
7800 * OK to resume normal operation. Use completion to allow
7801 * halted scsi ops to resume.
7802 */
7803static void
7804_scsih_pci_resume(struct pci_dev *pdev)
7805{
7806 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7807 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7808
7809 printk(MPT2SAS_INFO_FMT "PCI error: resume callback!!\n", ioc->name);
7810
7811 pci_cleanup_aer_uncorrect_error_status(pdev);
7812 mpt2sas_base_start_watchdog(ioc);
7813 scsi_unblock_requests(ioc->shost);
7814}
7815
7816/**
7817 * _scsih_pci_mmio_enabled - Enable MMIO and dump debug registers
7818 * @pdev: pointer to PCI device
7819 */
7820static pci_ers_result_t
7821_scsih_pci_mmio_enabled(struct pci_dev *pdev)
7822{
7823 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7824 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7825
7826 printk(MPT2SAS_INFO_FMT "PCI error: mmio enabled callback!!\n",
7827 ioc->name);
7828
7829 /* TODO - dump whatever for debugging purposes */
7830
7831 /* Request a slot reset. */
7832 return PCI_ERS_RESULT_NEED_RESET;
7833}
7834
7835static struct pci_error_handlers _scsih_err_handler = {
7836 .error_detected = _scsih_pci_error_detected,
7837 .mmio_enabled = _scsih_pci_mmio_enabled,
7838 .slot_reset = _scsih_pci_slot_reset,
7839 .resume = _scsih_pci_resume,
7840};
7841
7842static struct pci_driver scsih_driver = {
7843 .name = MPT2SAS_DRIVER_NAME,
7844 .id_table = scsih_pci_table,
7845 .probe = _scsih_probe,
7846 .remove = __devexit_p(_scsih_remove),
7847 .shutdown = _scsih_shutdown,
7848 .err_handler = &_scsih_err_handler,
7849#ifdef CONFIG_PM
7850 .suspend = _scsih_suspend,
7851 .resume = _scsih_resume,
7852#endif
7853};
7854
7855/* raid transport support */
7856static struct raid_function_template mpt2sas_raid_functions = {
7857 .cookie = &scsih_driver_template,
7858 .is_raid = _scsih_is_raid,
7859 .get_resync = _scsih_get_resync,
7860 .get_state = _scsih_get_state,
7861};
7862
7863/**
7864 * _scsih_init - main entry point for this driver.
7865 *
7866 * Returns 0 success, anything else error.
7867 */
7868static int __init
7869_scsih_init(void)
7870{
7871 int error;
7872
7873 mpt_ids = 0;
7874 printk(KERN_INFO "%s version %s loaded\n", MPT2SAS_DRIVER_NAME,
7875 MPT2SAS_DRIVER_VERSION);
7876
7877 mpt2sas_transport_template =
7878 sas_attach_transport(&mpt2sas_transport_functions);
7879 if (!mpt2sas_transport_template)
7880 return -ENODEV;
7881 /* raid transport support */
7882 mpt2sas_raid_template = raid_class_attach(&mpt2sas_raid_functions);
7883 if (!mpt2sas_raid_template) {
7884 sas_release_transport(mpt2sas_transport_template);
7885 return -ENODEV;
7886 }
7887
7888 mpt2sas_base_initialize_callback_handler();
7889
7890 /* queuecommand callback hander */
7891 scsi_io_cb_idx = mpt2sas_base_register_callback_handler(_scsih_io_done);
7892
7893 /* task management callback handler */
7894 tm_cb_idx = mpt2sas_base_register_callback_handler(_scsih_tm_done);
7895
7896 /* base internal commands callback handler */
7897 base_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_base_done);
7898
7899 /* transport internal commands callback handler */
7900 transport_cb_idx = mpt2sas_base_register_callback_handler(
7901 mpt2sas_transport_done);
7902
7903 /* scsih internal commands callback handler */
7904 scsih_cb_idx = mpt2sas_base_register_callback_handler(_scsih_done);
7905
7906 /* configuration page API internal commands callback handler */
7907 config_cb_idx = mpt2sas_base_register_callback_handler(
7908 mpt2sas_config_done);
7909
7910 /* ctl module callback handler */
7911 ctl_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_ctl_done);
7912
7913 tm_tr_cb_idx = mpt2sas_base_register_callback_handler(
7914 _scsih_tm_tr_complete);
7915
7916 tm_tr_volume_cb_idx = mpt2sas_base_register_callback_handler(
7917 _scsih_tm_volume_tr_complete);
7918
7919 tm_sas_control_cb_idx = mpt2sas_base_register_callback_handler(
7920 _scsih_sas_control_complete);
7921
7922 mpt2sas_ctl_init();
7923
7924 error = pci_register_driver(&scsih_driver);
7925 if (error) {
7926 /* raid transport support */
7927 raid_class_release(mpt2sas_raid_template);
7928 sas_release_transport(mpt2sas_transport_template);
7929 }
7930
7931 return error;
7932}
7933
7934/**
7935 * _scsih_exit - exit point for this driver (when it is a module).
7936 *
7937 * Returns 0 success, anything else error.
7938 */
7939static void __exit
7940_scsih_exit(void)
7941{
7942 printk(KERN_INFO "mpt2sas version %s unloading\n",
7943 MPT2SAS_DRIVER_VERSION);
7944
7945 pci_unregister_driver(&scsih_driver);
7946
7947 mpt2sas_ctl_exit();
7948
7949 mpt2sas_base_release_callback_handler(scsi_io_cb_idx);
7950 mpt2sas_base_release_callback_handler(tm_cb_idx);
7951 mpt2sas_base_release_callback_handler(base_cb_idx);
7952 mpt2sas_base_release_callback_handler(transport_cb_idx);
7953 mpt2sas_base_release_callback_handler(scsih_cb_idx);
7954 mpt2sas_base_release_callback_handler(config_cb_idx);
7955 mpt2sas_base_release_callback_handler(ctl_cb_idx);
7956
7957 mpt2sas_base_release_callback_handler(tm_tr_cb_idx);
7958 mpt2sas_base_release_callback_handler(tm_tr_volume_cb_idx);
7959 mpt2sas_base_release_callback_handler(tm_sas_control_cb_idx);
7960
7961 /* raid transport support */
7962 raid_class_release(mpt2sas_raid_template);
7963 sas_release_transport(mpt2sas_transport_template);
7964
7965}
7966
7967module_init(_scsih_init);
7968module_exit(_scsih_exit);